From 792a61021c6043f6c2b24b1cdd42be5753b3e54c Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sat, 12 Jul 2008 14:49:19 +0200 Subject: firewire: fix race of bus reset with request transmission Reported by Jay Fenlason: A bus reset tasklet may call fw_flush_transactions and touch transactions (call their callback which will free them) while the context which submitted the transaction is still inserting it into the transmission queue. A simple solution to this problem is to _not_ "flush" the transactions because of a bus reset (complete the transcations as 'cancelled'). They will now simply time out (completed as 'cancelled' by the split-timeout timer). Jay Fenlason thought of this fix too but I was quicker to type it out. :-) Background: Contexts which access an instance of struct fw_transaction are: 1. the submitter, until it inserted the packet which is embedded in the transaction into the AT req DMA, 2. the AsReqTrContext tasklet when the request packet was acked by the responder node or transmission to the responder failed, 3. the AsRspRcvContext tasklet when it found a request which matched an incoming response, 4. the card->flush_timer when it picks up timed-out transactions to cancel them, 5. the bus reset tasklet when it cancels transactions (this access is eliminated by this patch), 6. a process which shuts down an fw_card (unregisters it from fw-core when the controller is unbound from fw-ohci) --- although in this case there shouldn't really be any transactions anymore because we wait until all card users finished their business with the card. All of these contexts run concurrently (except for the 6th, presumably). The 1st is safe against the 2nd and 3rd because of the way how a request packet is carefully submitted to the hardware. A race between 2nd and 3rd has been fixed a while ago (bug 9617). The 4th is almost safe against 1st, 2nd, 3rd; there are issues with it if huge scheduling latencies occur, to be fixed separately. The 5th looks safe against 2nd, 3rd, and 4th but is unsafe against 1st. Maybe this could be fixed with an explicit state variable in struct fw_transaction. But this would require fw_transaction to be rewritten as only dynamically allocatable object with reference counting --- not a good solution if we also can simply kill this 5th accessing context (replace it by the 4th). Signed-off-by: Stefan Richter --- drivers/firewire/fw-topology.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers') diff --git a/drivers/firewire/fw-topology.c b/drivers/firewire/fw-topology.c index 213b0ff8f3d6..c1b81077c4a8 100644 --- a/drivers/firewire/fw-topology.c +++ b/drivers/firewire/fw-topology.c @@ -510,8 +510,6 @@ fw_core_handle_bus_reset(struct fw_card *card, struct fw_node *local_node; unsigned long flags; - fw_flush_transactions(card); - spin_lock_irqsave(&card->lock, flags); /* -- cgit v1.2.1 From e9aeb46c93a8b1b703d00586c05d9a71aa7e0f0c Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sat, 12 Jul 2008 14:50:06 +0200 Subject: firewire: fully initialize fw_transaction before marking it pending In theory, card->flush_timer could already access a transaction between fw_send_request()'s spin_unlock_irqrestore and the rest of what happens in fw_send_request(). This would happen if the process which sends the request is preempted and put to sleep right after spin_unlock_irqrestore for longer than 100ms. Therefore we fill in everything in struct fw_transaction at which the flush_timer might look at before we lift the lock. To do: Ensure that the timer does not pick up the transaction before the time of the AT request event plus split transaction timeout. Signed-off-by: Stefan Richter --- drivers/firewire/fw-transaction.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/firewire/fw-transaction.c b/drivers/firewire/fw-transaction.c index 40db80752272..7addfb3b070b 100644 --- a/drivers/firewire/fw-transaction.c +++ b/drivers/firewire/fw-transaction.c @@ -279,11 +279,6 @@ fw_send_request(struct fw_card *card, struct fw_transaction *t, card->current_tlabel = (card->current_tlabel + 1) & 0x1f; card->tlabel_mask |= (1 << tlabel); - list_add_tail(&t->link, &card->transaction_list); - - spin_unlock_irqrestore(&card->lock, flags); - - /* Initialize rest of transaction, fill out packet and send it. */ t->node_id = node_id; t->tlabel = tlabel; t->callback = callback; @@ -294,6 +289,10 @@ fw_send_request(struct fw_card *card, struct fw_transaction *t, speed, offset, payload, length); t->packet.callback = transmit_complete_callback; + list_add_tail(&t->link, &card->transaction_list); + + spin_unlock_irqrestore(&card->lock, flags); + card->driver->send_request(card, &t->packet); } EXPORT_SYMBOL(fw_send_request); -- cgit v1.2.1 From b9549bc6803d6a16fe6a85b316b742ef82bd3931 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sat, 12 Jul 2008 14:50:42 +0200 Subject: firewire: small fw_fill_request cleanup - better name for a function argument - removal of a local variable which became unnecessary after "fully initialize fw_transaction before marking it pending" Signed-off-by: Stefan Richter --- drivers/firewire/fw-transaction.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/firewire/fw-transaction.c b/drivers/firewire/fw-transaction.c index 7addfb3b070b..861dd60de7d9 100644 --- a/drivers/firewire/fw-transaction.c +++ b/drivers/firewire/fw-transaction.c @@ -151,7 +151,7 @@ transmit_complete_callback(struct fw_packet *packet, static void fw_fill_request(struct fw_packet *packet, int tcode, int tlabel, - int node_id, int source_id, int generation, int speed, + int destination_id, int source_id, int generation, int speed, unsigned long long offset, void *payload, size_t length) { int ext_tcode; @@ -166,7 +166,7 @@ fw_fill_request(struct fw_packet *packet, int tcode, int tlabel, HEADER_RETRY(RETRY_X) | HEADER_TLABEL(tlabel) | HEADER_TCODE(tcode) | - HEADER_DESTINATION(node_id); + HEADER_DESTINATION(destination_id); packet->header[1] = HEADER_OFFSET_HIGH(offset >> 32) | HEADER_SOURCE(source_id); packet->header[2] = @@ -252,7 +252,7 @@ fw_send_request(struct fw_card *card, struct fw_transaction *t, fw_transaction_callback_t callback, void *callback_data) { unsigned long flags; - int tlabel, source; + int tlabel; /* * Bump the flush timer up 100ms first of all so we @@ -268,7 +268,6 @@ fw_send_request(struct fw_card *card, struct fw_transaction *t, spin_lock_irqsave(&card->lock, flags); - source = card->node_id; tlabel = card->current_tlabel; if (card->tlabel_mask & (1 << tlabel)) { spin_unlock_irqrestore(&card->lock, flags); @@ -284,9 +283,8 @@ fw_send_request(struct fw_card *card, struct fw_transaction *t, t->callback = callback; t->callback_data = callback_data; - fw_fill_request(&t->packet, tcode, t->tlabel, - node_id, source, generation, - speed, offset, payload, length); + fw_fill_request(&t->packet, tcode, t->tlabel, node_id, card->node_id, + generation, speed, offset, payload, length); t->packet.callback = transmit_complete_callback; list_add_tail(&t->link, &card->transaction_list); -- cgit v1.2.1 From 1e8afea124added6409d5209f90d9949f5a13b32 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sat, 12 Jul 2008 14:51:18 +0200 Subject: firewire: warn on unfinished transactions during card removal After card->done and card->work are completed, any remaining pending request would be a bug. We cannot safely complete a transaction at that point anymore. IOW card users must not drop their last fw_card reference (usually indirect references through fw_device references) before their last outbound transaction through that card was finished. Signed-off-by: Stefan Richter --- drivers/firewire/fw-card.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/firewire/fw-card.c b/drivers/firewire/fw-card.c index da873d795aad..bbd73a406e53 100644 --- a/drivers/firewire/fw-card.c +++ b/drivers/firewire/fw-card.c @@ -539,7 +539,7 @@ fw_core_remove_card(struct fw_card *card) wait_for_completion(&card->done); cancel_delayed_work_sync(&card->work); - fw_flush_transactions(card); + WARN_ON(!list_empty(&card->transaction_list)); del_timer_sync(&card->flush_timer); } EXPORT_SYMBOL(fw_core_remove_card); -- cgit v1.2.1 From 4aaf087846f9a1f1ec272393f5cd78f713e24f37 Mon Sep 17 00:00:00 2001 From: Lee Nipper Date: Thu, 17 Jul 2008 15:58:08 +0800 Subject: crypto: talitos - Remove calls to of_node_put Remove of_node_put calls since there is no corresponding of_node_get. This patch prevents an exception when talitos is loaded a 2nd time. This sequence: modprobe talitos; rmmod talitos; modprobe talitos causes this message: "WARNING: Bad of_node_put() on /soc8349@e0000000/crypto@30000". Signed-off-by: Lee Nipper Signed-off-by: Kim Phillips Signed-off-by: Herbert Xu --- drivers/crypto/talitos.c | 5 ----- 1 file changed, 5 deletions(-) (limited to 'drivers') diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index b11943dadefd..01e6595014ee 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -1466,9 +1466,6 @@ static int talitos_probe(struct of_device *ofdev, goto err_out; } - of_node_put(np); - np = NULL; - priv->head_lock = kmalloc(sizeof(spinlock_t) * priv->num_channels, GFP_KERNEL); priv->tail_lock = kmalloc(sizeof(spinlock_t) * priv->num_channels, @@ -1559,8 +1556,6 @@ static int talitos_probe(struct of_device *ofdev, err_out: talitos_remove(ofdev); - if (np) - of_node_put(np); return err; } -- cgit v1.2.1 From 695ad589698571046d42a4450c2d801486905535 Mon Sep 17 00:00:00 2001 From: Lee Nipper Date: Thu, 17 Jul 2008 16:22:30 +0800 Subject: crypto: talitos - Correct dst != src case handling Seems that dst == src, but this fixes the logic in case it's not. Signed-off-by: Lee Nipper Signed-off-by: Kim Phillips Signed-off-by: Herbert Xu --- drivers/crypto/talitos.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index 01e6595014ee..f644fba35c8c 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -1022,7 +1022,7 @@ static struct ipsec_esp_edesc *ipsec_esp_edesc_alloc(struct aead_request *areq, dst_nents = src_nents; } else { dst_nents = sg_count(areq->dst, areq->cryptlen + ctx->authsize); - dst_nents = (dst_nents == 1) ? 0 : src_nents; + dst_nents = (dst_nents == 1) ? 0 : dst_nents; } /* -- cgit v1.2.1 From ec6644d6325b5a38525f1d5b20fd4bf7db05cf2a Mon Sep 17 00:00:00 2001 From: Kim Phillips Date: Thu, 17 Jul 2008 20:16:40 +0800 Subject: crypto: talitos - Preempt overflow interrupts add requests pending/submit count to prevent request queue full condition by preempting h/w overflow interrupts in software. We do this due to the delay in the delivery and handling of the channel overflow error interrupt. Signed-off-by: Kim Phillips Acked-by: Lee Nipper Signed-off-by: Herbert Xu --- drivers/crypto/talitos.c | 27 ++++++++++++++++++++++----- 1 file changed, 22 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index f644fba35c8c..fdb0680f6ffe 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -99,6 +99,9 @@ struct talitos_private { /* next channel to be assigned next incoming descriptor */ atomic_t last_chan; + /* per-channel number of requests pending in channel h/w fifo */ + atomic_t *submit_count; + /* per-channel request fifo */ struct talitos_request **fifo; @@ -263,15 +266,15 @@ static int talitos_submit(struct device *dev, struct talitos_desc *desc, spin_lock_irqsave(&priv->head_lock[ch], flags); - head = priv->head[ch]; - request = &priv->fifo[ch][head]; - - if (request->desc) { - /* request queue is full */ + if (!atomic_inc_not_zero(&priv->submit_count[ch])) { + /* h/w fifo is full */ spin_unlock_irqrestore(&priv->head_lock[ch], flags); return -EAGAIN; } + head = priv->head[ch]; + request = &priv->fifo[ch][head]; + /* map descriptor and save caller data */ request->dma_desc = dma_map_single(dev, desc, sizeof(*desc), DMA_BIDIRECTIONAL); @@ -335,6 +338,9 @@ static void flush_channel(struct device *dev, int ch, int error, int reset_ch) priv->tail[ch] = (tail + 1) & (priv->fifo_len - 1); spin_unlock_irqrestore(&priv->tail_lock[ch], flags); + + atomic_dec(&priv->submit_count[ch]); + saved_req.callback(dev, saved_req.desc, saved_req.context, status); /* channel may resume processing in single desc error case */ @@ -1337,6 +1343,7 @@ static int __devexit talitos_remove(struct of_device *ofdev) if (hw_supports(dev, DESC_HDR_SEL0_RNG)) talitos_unregister_rng(dev); + kfree(priv->submit_count); kfree(priv->tail); kfree(priv->head); @@ -1501,6 +1508,16 @@ static int talitos_probe(struct of_device *ofdev, } } + priv->submit_count = kmalloc(sizeof(int) * priv->num_channels, + GFP_KERNEL); + if (!priv->submit_count) { + dev_err(dev, "failed to allocate fifo submit count space\n"); + err = -ENOMEM; + goto err_out; + } + for (i = 0; i < priv->num_channels; i++) + atomic_set(&priv->submit_count[i], -priv->chfifo_len); + priv->head = kzalloc(sizeof(int) * priv->num_channels, GFP_KERNEL); priv->tail = kzalloc(sizeof(int) * priv->num_channels, GFP_KERNEL); if (!priv->head || !priv->tail) { -- cgit v1.2.1 From 586725f8604ef16ebbfdd66e73036e162ae00135 Mon Sep 17 00:00:00 2001 From: Kim Phillips Date: Thu, 17 Jul 2008 20:19:18 +0800 Subject: crypto: talitos - Fix GFP flag usage use GFP_ATOMIC when necessary; use atomic_t when allocating submit_count. Signed-off-by: Kim Phillips Acked-by: Lee Nipper Signed-off-by: Herbert Xu --- drivers/crypto/talitos.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index fdb0680f6ffe..79fdba2a20c0 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -1015,6 +1015,8 @@ static struct ipsec_esp_edesc *ipsec_esp_edesc_alloc(struct aead_request *areq, struct talitos_ctx *ctx = crypto_aead_ctx(authenc); struct ipsec_esp_edesc *edesc; int src_nents, dst_nents, alloc_len, dma_len; + gfp_t flags = areq->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL : + GFP_ATOMIC; if (areq->cryptlen + ctx->authsize > TALITOS_MAX_DATA_LEN) { dev_err(ctx->dev, "cryptlen exceeds h/w max limit\n"); @@ -1046,7 +1048,7 @@ static struct ipsec_esp_edesc *ipsec_esp_edesc_alloc(struct aead_request *areq, alloc_len += icv_stashing ? ctx->authsize : 0; } - edesc = kmalloc(alloc_len, GFP_DMA); + edesc = kmalloc(alloc_len, GFP_DMA | flags); if (!edesc) { dev_err(ctx->dev, "could not allocate edescriptor\n"); return ERR_PTR(-ENOMEM); @@ -1508,7 +1510,7 @@ static int talitos_probe(struct of_device *ofdev, } } - priv->submit_count = kmalloc(sizeof(int) * priv->num_channels, + priv->submit_count = kmalloc(sizeof(atomic_t) * priv->num_channels, GFP_KERNEL); if (!priv->submit_count) { dev_err(dev, "failed to allocate fifo submit count space\n"); -- cgit v1.2.1 From fa86a26795b850cdf4e557898457a63e241c1aa1 Mon Sep 17 00:00:00 2001 From: Kim Phillips Date: Thu, 17 Jul 2008 20:20:06 +0800 Subject: crypto: talitos - Stop leaking memory in error path free edescriptor when returning error (such as -EAGAIN). Signed-off-by: Kim Phillips Acked-by: Lee Nipper Signed-off-by: Herbert Xu --- drivers/crypto/talitos.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index 79fdba2a20c0..a81265bbb897 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -880,7 +880,7 @@ static int ipsec_esp(struct ipsec_esp_edesc *edesc, struct aead_request *areq, unsigned int cryptlen = areq->cryptlen; unsigned int authsize = ctx->authsize; unsigned int ivsize; - int sg_count; + int sg_count, ret; /* hmac key */ map_single_talitos_ptr(dev, &desc->ptr[0], ctx->authkeylen, &ctx->key, @@ -984,7 +984,12 @@ static int ipsec_esp(struct ipsec_esp_edesc *edesc, struct aead_request *areq, map_single_talitos_ptr(dev, &desc->ptr[6], ivsize, ctx->iv, 0, DMA_FROM_DEVICE); - return talitos_submit(dev, desc, callback, areq); + ret = talitos_submit(dev, desc, callback, areq); + if (ret != -EINPROGRESS) { + ipsec_esp_unmap(dev, edesc, areq); + kfree(edesc); + } + return ret; } -- cgit v1.2.1 From c0e741d47859fcabb84a37589a4f49801ca8590a Mon Sep 17 00:00:00 2001 From: Kim Phillips Date: Thu, 17 Jul 2008 20:20:59 +0800 Subject: crypto: talitos - sparse fix Signed-off-by: Kim Phillips Signed-off-by: Herbert Xu --- drivers/crypto/talitos.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index a81265bbb897..681c15f42083 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -848,7 +848,7 @@ static int sg_to_link_tbl(struct scatterlist *sg, int sg_count, /* adjust (decrease) last one (or two) entry's len to cryptlen */ link_tbl_ptr--; - while (link_tbl_ptr->len <= (-cryptlen)) { + while (be16_to_cpu(link_tbl_ptr->len) <= (-cryptlen)) { /* Empty this entry, and move to previous one */ cryptlen += be16_to_cpu(link_tbl_ptr->len); link_tbl_ptr->len = 0; -- cgit v1.2.1 From fbfca4b8781757c1950b2225ba67d83072e0bc07 Mon Sep 17 00:00:00 2001 From: Ben Nizette Date: Fri, 18 Jul 2008 16:48:09 +1000 Subject: avr32: clean up mci platform code This patch does a few small cleanups around the atmel mci platform code and in the atmel-mci driver. The platform changes simply removes an unused variable, uses the fact that by the end we always have some form of platform data and notes that GPIO_PIN_NONE != 0. This last point could cause the incorrect attempt to twice reserve pin PA0. While we've got the hood up, add linux/err.h to the atmel-mci.c include list. It needs it and generally pulls it by voodoo but I did once stumble across a config which don't build. This is against Linus' latest git. Signed-off-by: Ben Nizette Signed-off-by: Haavard Skinnemoen --- drivers/mmc/host/atmel-mci.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c index cce873c5a149..c2f8aa840e82 100644 --- a/drivers/mmc/host/atmel-mci.c +++ b/drivers/mmc/host/atmel-mci.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.1 From f9543d0ab6392a9a5bff0034622688dc10d9d225 Mon Sep 17 00:00:00 2001 From: JiSheng Zhang Date: Sat, 19 Jul 2008 15:35:41 +0800 Subject: firewire: queue the right number of data There will be 4 padding bytes in struct fw_cdev_event_response on some platforms The member:__u32 data will point to these padding bytes. While queue the response and data in complete_transaction in fw-cdev.c, it will queue like this: |response(excluding padding bytes)|4 padding bytes|4 padding bytes|data. It queue 4 extra bytes. That is to say it use "&response + sizeof(response)" while other place of kernel and userspace library use "&response + offsetof (typeof(response), data)". So it will lost the last 4 bytes of data. This patch can fix it while not changing the struct definition. Signed-off-by: JiSheng Zhang This fixes responses to outbound block read requests on 64bit architectures. Tested on i686, x86-64, and x86-64 with i686 userland, using firecontrol and gscanbus. Signed-off-by: Stefan Richter --- drivers/firewire/fw-cdev.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/firewire/fw-cdev.c b/drivers/firewire/fw-cdev.c index c639915fc3cb..bc81d6fcd2fd 100644 --- a/drivers/firewire/fw-cdev.c +++ b/drivers/firewire/fw-cdev.c @@ -382,9 +382,9 @@ complete_transaction(struct fw_card *card, int rcode, response->response.type = FW_CDEV_EVENT_RESPONSE; response->response.rcode = rcode; - queue_event(client, &response->event, - &response->response, sizeof(response->response), - response->response.data, response->response.length); + queue_event(client, &response->event, &response->response, + sizeof(response->response) + response->response.length, + NULL, 0); } static int ioctl_send_request(struct client *client, void *buffer) -- cgit v1.2.1 From db6ea2c17cef531a58f48c51c3a0892edcaf1380 Mon Sep 17 00:00:00 2001 From: Huang Weiyi Date: Sat, 21 Jun 2008 22:30:43 +0800 Subject: drivers/misc/atmel-ssc.c: Removed duplicated include Removed duplicated include file in drivers/misc/atmel-ssc.c. Signed-off-by: Huang Weiyi Signed-off-by: Haavard Skinnemoen --- drivers/misc/atmel-ssc.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/misc/atmel-ssc.c b/drivers/misc/atmel-ssc.c index e171650766ce..bf5e4d065436 100644 --- a/drivers/misc/atmel-ssc.c +++ b/drivers/misc/atmel-ssc.c @@ -13,7 +13,6 @@ #include #include #include -#include #include #include -- cgit v1.2.1 From 95984f62c9b0bf6d89ef4f514b1afe73623481de Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Tue, 22 Jul 2008 18:41:10 +0200 Subject: firewire: fw-ohci: TSB43AB22/A dualbuffer workaround Isochronous reception in dualbuffer mode is reportedly broken with TI TSB43AB22A on x86-64. Descriptor addresses above 2G have been determined as the trigger: https://bugzilla.redhat.com/show_bug.cgi?id=435550 Two fixes are possible: - pci_set_consistent_dma_mask(pdev, DMA_31BIT_MASK); at least when IR descriptors are allocated, or - simply don't use dualbuffer. This fix implements the latter workaround. But we keep using dualbuffer on x86-32 which won't give us highmen (and thus physical addresses outside the 31bit range) in coherent DMA memory allocations. Right now we could for example also whitelist PPC32, but DMA mapping implementation details are expected to change there. Signed-off-by: Stefan Richter Signed-off-by: Jarod Wilson --- drivers/firewire/fw-ohci.c | 37 ++++++++++++++++++++++++------------- 1 file changed, 24 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c index 333b12544dd1..a4eff32621b5 100644 --- a/drivers/firewire/fw-ohci.c +++ b/drivers/firewire/fw-ohci.c @@ -171,7 +171,6 @@ struct iso_context { struct fw_ohci { struct fw_card card; - u32 version; __iomem char *registers; dma_addr_t self_id_bus; __le32 *self_id_cpu; @@ -180,6 +179,8 @@ struct fw_ohci { int generation; int request_generation; /* for timestamping incoming requests */ u32 bus_seconds; + + bool use_dualbuffer; bool old_uninorth; bool bus_reset_packet_quirk; @@ -1885,7 +1886,7 @@ ohci_allocate_iso_context(struct fw_card *card, int type, size_t header_size) } else { mask = &ohci->ir_context_mask; list = ohci->ir_context_list; - if (ohci->version >= OHCI_VERSION_1_1) + if (ohci->use_dualbuffer) callback = handle_ir_dualbuffer_packet; else callback = handle_ir_packet_per_buffer; @@ -1949,7 +1950,7 @@ static int ohci_start_iso(struct fw_iso_context *base, } else { index = ctx - ohci->ir_context_list; control = IR_CONTEXT_ISOCH_HEADER; - if (ohci->version >= OHCI_VERSION_1_1) + if (ohci->use_dualbuffer) control |= IR_CONTEXT_DUAL_BUFFER_MODE; match = (tags << 28) | (sync << 8) | ctx->base.channel; if (cycle >= 0) { @@ -2279,7 +2280,7 @@ ohci_queue_iso(struct fw_iso_context *base, spin_lock_irqsave(&ctx->context.ohci->lock, flags); if (base->type == FW_ISO_CONTEXT_TRANSMIT) retval = ohci_queue_iso_transmit(base, packet, buffer, payload); - else if (ctx->context.ohci->version >= OHCI_VERSION_1_1) + else if (ctx->context.ohci->use_dualbuffer) retval = ohci_queue_iso_receive_dualbuffer(base, packet, buffer, payload); else @@ -2341,7 +2342,7 @@ static int __devinit pci_probe(struct pci_dev *dev, const struct pci_device_id *ent) { struct fw_ohci *ohci; - u32 bus_options, max_receive, link_speed; + u32 bus_options, max_receive, link_speed, version; u64 guid; int err; size_t size; @@ -2366,12 +2367,6 @@ pci_probe(struct pci_dev *dev, const struct pci_device_id *ent) pci_write_config_dword(dev, OHCI1394_PCI_HCI_Control, 0); pci_set_drvdata(dev, ohci); -#if defined(CONFIG_PPC_PMAC) && defined(CONFIG_PPC32) - ohci->old_uninorth = dev->vendor == PCI_VENDOR_ID_APPLE && - dev->device == PCI_DEVICE_ID_APPLE_UNI_N_FW; -#endif - ohci->bus_reset_packet_quirk = dev->vendor == PCI_VENDOR_ID_TI; - spin_lock_init(&ohci->lock); tasklet_init(&ohci->bus_reset_tasklet, @@ -2390,6 +2385,23 @@ pci_probe(struct pci_dev *dev, const struct pci_device_id *ent) goto fail_iomem; } + version = reg_read(ohci, OHCI1394_Version) & 0x00ff00ff; + ohci->use_dualbuffer = version >= OHCI_VERSION_1_1; + +/* x86-32 currently doesn't use highmem for dma_alloc_coherent */ +#if !defined(CONFIG_X86_32) + /* dual-buffer mode is broken with descriptor addresses above 2G */ + if (dev->vendor == PCI_VENDOR_ID_TI && + dev->device == PCI_DEVICE_ID_TI_TSB43AB22) + ohci->use_dualbuffer = false; +#endif + +#if defined(CONFIG_PPC_PMAC) && defined(CONFIG_PPC32) + ohci->old_uninorth = dev->vendor == PCI_VENDOR_ID_APPLE && + dev->device == PCI_DEVICE_ID_APPLE_UNI_N_FW; +#endif + ohci->bus_reset_packet_quirk = dev->vendor == PCI_VENDOR_ID_TI; + ar_context_init(&ohci->ar_request_ctx, ohci, OHCI1394_AsReqRcvContextControlSet); @@ -2441,9 +2453,8 @@ pci_probe(struct pci_dev *dev, const struct pci_device_id *ent) if (err < 0) goto fail_self_id; - ohci->version = reg_read(ohci, OHCI1394_Version) & 0x00ff00ff; fw_notify("Added fw-ohci device %s, OHCI version %x.%x\n", - dev->dev.bus_id, ohci->version >> 16, ohci->version & 0xff); + dev->dev.bus_id, version >> 16, version & 0xff); return 0; fail_self_id: -- cgit v1.2.1 From c0220d686b926a5865a2032c805015758bfdda69 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Tue, 22 Jul 2008 21:35:47 +0200 Subject: firewire: avoid memleak after phy config transmit failure Use only statically allocated data for PHY config packet transmission. With the previous incarnation, some data wouldn't be freed if the packet transmit callback was never called. A theoretical drawback now is that, in PCs with more than one card, card A may complete() for a waiter on card B. But this is highly unlikely and its impact not serious. Bus manager B may reset bus B before the PHY config went out, but the next phy config on B should be fine. However, with a timeout of 100ms, this situation is close to impossible. Signed-off-by: Stefan Richter --- drivers/firewire/fw-transaction.c | 58 ++++++++++++++------------------------- 1 file changed, 21 insertions(+), 37 deletions(-) (limited to 'drivers') diff --git a/drivers/firewire/fw-transaction.c b/drivers/firewire/fw-transaction.c index 861dd60de7d9..e5d1a0b64fcf 100644 --- a/drivers/firewire/fw-transaction.c +++ b/drivers/firewire/fw-transaction.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -295,58 +296,41 @@ fw_send_request(struct fw_card *card, struct fw_transaction *t, } EXPORT_SYMBOL(fw_send_request); -struct fw_phy_packet { - struct fw_packet packet; - struct completion done; - struct kref kref; -}; - -static void phy_packet_release(struct kref *kref) -{ - struct fw_phy_packet *p = - container_of(kref, struct fw_phy_packet, kref); - kfree(p); -} +static DEFINE_MUTEX(phy_config_mutex); +static DECLARE_COMPLETION(phy_config_done); static void transmit_phy_packet_callback(struct fw_packet *packet, struct fw_card *card, int status) { - struct fw_phy_packet *p = - container_of(packet, struct fw_phy_packet, packet); - - complete(&p->done); - kref_put(&p->kref, phy_packet_release); + complete(&phy_config_done); } +static struct fw_packet phy_config_packet = { + .header_length = 8, + .payload_length = 0, + .speed = SCODE_100, + .callback = transmit_phy_packet_callback, +}; + void fw_send_phy_config(struct fw_card *card, int node_id, int generation, int gap_count) { - struct fw_phy_packet *p; long timeout = DIV_ROUND_UP(HZ, 10); u32 data = PHY_IDENTIFIER(PHY_PACKET_CONFIG) | PHY_CONFIG_ROOT_ID(node_id) | PHY_CONFIG_GAP_COUNT(gap_count); - p = kmalloc(sizeof(*p), GFP_KERNEL); - if (p == NULL) - return; + mutex_lock(&phy_config_mutex); + + phy_config_packet.header[0] = data; + phy_config_packet.header[1] = ~data; + phy_config_packet.generation = generation; + INIT_COMPLETION(phy_config_done); + + card->driver->send_request(card, &phy_config_packet); + wait_for_completion_timeout(&phy_config_done, timeout); - p->packet.header[0] = data; - p->packet.header[1] = ~data; - p->packet.header_length = 8; - p->packet.payload_length = 0; - p->packet.speed = SCODE_100; - p->packet.generation = generation; - p->packet.callback = transmit_phy_packet_callback; - init_completion(&p->done); - kref_set(&p->kref, 2); - - card->driver->send_request(card, &p->packet); - timeout = wait_for_completion_timeout(&p->done, timeout); - kref_put(&p->kref, phy_packet_release); - - /* will leak p if the callback is never executed */ - WARN_ON(timeout == 0); + mutex_unlock(&phy_config_mutex); } void fw_flush_transactions(struct fw_card *card) -- cgit v1.2.1 From f05e21b39f7dddcebab03ff329fef5783fea58d4 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Fri, 25 Jul 2008 16:24:19 +0200 Subject: firewire: state userland requirements in Kconfig help Signed-off-by: Stefan Richter --- drivers/firewire/Kconfig | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/firewire/Kconfig b/drivers/firewire/Kconfig index 76f26710fc16..fa6d6abefd4d 100644 --- a/drivers/firewire/Kconfig +++ b/drivers/firewire/Kconfig @@ -16,8 +16,13 @@ config FIREWIRE enable the new stack. To compile this driver as a module, say M here: the module will be - called firewire-core. It functionally replaces ieee1394, raw1394, - and video1394. + called firewire-core. + + This module functionally replaces ieee1394, raw1394, and video1394. + To access it from application programs, you generally need at least + libraw1394 version 2. IIDC/DCAM applications also need libdc1394 + version 2. No libraries are required to access storage devices + through the firewire-sbp2 driver. config FIREWIRE_OHCI tristate "OHCI-1394 controllers" -- cgit v1.2.1 From 12d2b8f951063076c7e0acdff7ae1fecd54920a0 Mon Sep 17 00:00:00 2001 From: Heikki Orsila Date: Sun, 6 Jul 2008 15:48:02 +0300 Subject: kconfig: fix typos: "Suport" -> "Support" Signed-off-by: Heikki Orsila Signed-off-by: Sam Ravnborg --- drivers/misc/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index 321eb9134635..f5ade1904aad 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -360,7 +360,7 @@ config THINKPAD_ACPI_VIDEO If you are not sure, say Y here. config THINKPAD_ACPI_HOTKEY_POLL - bool "Suport NVRAM polling for hot keys" + bool "Support NVRAM polling for hot keys" depends on THINKPAD_ACPI default y ---help--- -- cgit v1.2.1 From 4ef584ba84125b67c17b5aded38e7783cd8cdef0 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 26 Jul 2008 15:46:39 +0100 Subject: [ARM] fix nwflash.c: 6ee8928d94841aa764aeaf645ad16daff811dc26 drivers/char/nwflash.c: In function 'flash_read': drivers/char/nwflash.c:129: error: 'p' undeclared (first use in this function) drivers/char/nwflash.c:129: error: (Each undeclared identifier is reported only once drivers/char/nwflash.c:129: error: for each function it appears in.) drivers/char/nwflash.c:129: error: 'count' undeclared (first use in this function) drivers/char/nwflash.c:136: warning: passing argument 4 of 'simple_read_from_buffer' discards qualifiers from pointer target type Signed-off-by: Russell King --- drivers/char/nwflash.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/char/nwflash.c b/drivers/char/nwflash.c index f9f72a211292..006be92ee3f3 100644 --- a/drivers/char/nwflash.c +++ b/drivers/char/nwflash.c @@ -125,15 +125,15 @@ static ssize_t flash_read(struct file *file, char __user *buf, size_t size, ssize_t ret; if (flashdebug) - printk(KERN_DEBUG "flash_read: flash_read: offset=0x%lX, " - "buffer=%p, count=0x%X.\n", p, buf, count); + printk(KERN_DEBUG "flash_read: flash_read: offset=0x%llx, " + "buffer=%p, count=0x%zx.\n", *ppos, buf, size); /* * We now lock against reads and writes. --rmk */ if (mutex_lock_interruptible(&nwflash_mutex)) return -ERESTARTSYS; - ret = simple_read_from_buffer(buf, size, ppos, FLASH_BASE, gbFlashSize); + ret = simple_read_from_buffer(buf, size, ppos, (void *)FLASH_BASE, gbFlashSize); mutex_unlock(&nwflash_mutex); return ret; -- cgit v1.2.1 From bbfb21daa320c9eb327d63734f295fa50ba93826 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Thu, 10 Jul 2008 16:55:46 -0700 Subject: [SCSI] qla2xxx: Correct locking during NVRAM manipulation. Commit 2c96d8d0c17978bbf5eb82314d488f46d4a51280 pushed the acquisition of hardware_lock to too fine a level, which in turn will cause problems with cond_resched()s added with 40a2e34a94c336b716f631b2952d233e1ba76e3c. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_sup.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_sup.c b/drivers/scsi/qla2xxx/qla_sup.c index 1728ab3ccb20..ebea62246c80 100644 --- a/drivers/scsi/qla2xxx/qla_sup.c +++ b/drivers/scsi/qla2xxx/qla_sup.c @@ -869,11 +869,9 @@ qla24xx_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr, uint32_t i; uint32_t *dwptr; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; - unsigned long flags; ret = QLA_SUCCESS; - spin_lock_irqsave(&ha->hardware_lock, flags); /* Enable flash write. */ WRT_REG_DWORD(®->ctrl_status, RD_REG_DWORD(®->ctrl_status) | CSRX_FLASH_ENABLE); @@ -907,7 +905,6 @@ qla24xx_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr, WRT_REG_DWORD(®->ctrl_status, RD_REG_DWORD(®->ctrl_status) & ~CSRX_FLASH_ENABLE); RD_REG_DWORD(®->ctrl_status); /* PCI Posting. */ - spin_unlock_irqrestore(&ha->hardware_lock, flags); return ret; } -- cgit v1.2.1 From 5f3a9a207f1fccde476dd31b4c63ead2967d934f Mon Sep 17 00:00:00 2001 From: Seokmann Ju Date: Thu, 10 Jul 2008 16:55:47 -0700 Subject: [SCSI] qla2xxx: Add dev_loss_tmo_callbk/terminate_rport_io callback support. Signed-off-by: Seokmann Ju Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_attr.c | 31 ++++++++++++++++++++++++ drivers/scsi/qla2xxx/qla_def.h | 1 - drivers/scsi/qla2xxx/qla_gbl.h | 2 ++ drivers/scsi/qla2xxx/qla_init.c | 16 ++++--------- drivers/scsi/qla2xxx/qla_os.c | 53 +++++++++++++++++++++++++++++++---------- 5 files changed, 78 insertions(+), 25 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index 8dd88fc1244a..3112518b0e64 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -994,6 +994,33 @@ qla2x00_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) rport->dev_loss_tmo = ha->port_down_retry_count + 5; } +static void +qla2x00_dev_loss_tmo_callbk(struct fc_rport *rport) +{ + struct Scsi_Host *host = rport_to_shost(rport); + fc_port_t *fcport = *(fc_port_t **)rport->dd_data; + + qla2x00_abort_fcport_cmds(fcport); + + /* + * Transport has effectively 'deleted' the rport, clear + * all local references. + */ + spin_lock_irq(host->host_lock); + fcport->rport = NULL; + *((fc_port_t **)rport->dd_data) = NULL; + spin_unlock_irq(host->host_lock); +} + +static void +qla2x00_terminate_rport_io(struct fc_rport *rport) +{ + fc_port_t *fcport = *(fc_port_t **)rport->dd_data; + + qla2x00_abort_fcport_cmds(fcport); + scsi_target_unblock(&rport->dev); +} + static int qla2x00_issue_lip(struct Scsi_Host *shost) { @@ -1253,6 +1280,8 @@ struct fc_function_template qla2xxx_transport_functions = { .show_rport_dev_loss_tmo = 1, .issue_fc_host_lip = qla2x00_issue_lip, + .dev_loss_tmo_callbk = qla2x00_dev_loss_tmo_callbk, + .terminate_rport_io = qla2x00_terminate_rport_io, .get_fc_host_stats = qla2x00_get_fc_host_stats, .vport_create = qla24xx_vport_create, @@ -1296,6 +1325,8 @@ struct fc_function_template qla2xxx_transport_vport_functions = { .show_rport_dev_loss_tmo = 1, .issue_fc_host_lip = qla2x00_issue_lip, + .dev_loss_tmo_callbk = qla2x00_dev_loss_tmo_callbk, + .terminate_rport_io = qla2x00_terminate_rport_io, .get_fc_host_stats = qla2x00_get_fc_host_stats, }; diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 8dd600013bd1..7b0ddc83413f 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -1544,7 +1544,6 @@ typedef struct fc_port { int login_retry; atomic_t port_down_timer; - spinlock_t rport_lock; struct fc_rport *rport, *drport; u32 supported_classes; diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index 9b4bebee6879..5a50fb749728 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -71,6 +71,8 @@ extern int qla2x00_post_aen_work(struct scsi_qla_host *, enum extern int qla2x00_post_hwe_work(struct scsi_qla_host *, uint16_t , uint16_t, uint16_t, uint16_t); +extern void qla2x00_abort_fcport_cmds(fc_port_t *); + /* * Global Functions in qla_mid.c source file. */ diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index bbbc5a632a1d..c7388fadf225 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -1864,12 +1864,11 @@ qla2x00_rport_del(void *data) { fc_port_t *fcport = data; struct fc_rport *rport; - unsigned long flags; - spin_lock_irqsave(&fcport->rport_lock, flags); + spin_lock_irq(fcport->ha->host->host_lock); rport = fcport->drport; fcport->drport = NULL; - spin_unlock_irqrestore(&fcport->rport_lock, flags); + spin_unlock_irq(fcport->ha->host->host_lock); if (rport) fc_remote_port_delete(rport); } @@ -1898,7 +1897,6 @@ qla2x00_alloc_fcport(scsi_qla_host_t *ha, gfp_t flags) atomic_set(&fcport->state, FCS_UNCONFIGURED); fcport->flags = FCF_RLC_SUPPORT; fcport->supported_classes = FC_COS_UNSPECIFIED; - spin_lock_init(&fcport->rport_lock); return fcport; } @@ -2243,28 +2241,24 @@ qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport) { struct fc_rport_identifiers rport_ids; struct fc_rport *rport; - unsigned long flags; if (fcport->drport) qla2x00_rport_del(fcport); - if (fcport->rport) - return; rport_ids.node_name = wwn_to_u64(fcport->node_name); rport_ids.port_name = wwn_to_u64(fcport->port_name); rport_ids.port_id = fcport->d_id.b.domain << 16 | fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa; rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; - rport = fc_remote_port_add(ha->host, 0, &rport_ids); + fcport->rport = rport = fc_remote_port_add(ha->host, 0, &rport_ids); if (!rport) { qla_printk(KERN_WARNING, ha, "Unable to allocate fc remote port!\n"); return; } - spin_lock_irqsave(&fcport->rport_lock, flags); - fcport->rport = rport; + spin_lock_irq(fcport->ha->host->host_lock); *((fc_port_t **)rport->dd_data) = fcport; - spin_unlock_irqrestore(&fcport->rport_lock, flags); + spin_unlock_irq(fcport->ha->host->host_lock); rport->supported_classes = fcport->supported_classes; diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 48eaa3bb5433..c5ad858e17e6 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -388,7 +388,7 @@ qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) } /* Close window on fcport/rport state-transitioning. */ - if (!*(fc_port_t **)rport->dd_data) { + if (fcport->drport) { cmd->result = DID_IMM_RETRY << 16; goto qc_fail_command; } @@ -455,7 +455,7 @@ qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) } /* Close window on fcport/rport state-transitioning. */ - if (!*(fc_port_t **)rport->dd_data) { + if (fcport->drport) { cmd->result = DID_IMM_RETRY << 16; goto qc24_fail_command; } @@ -617,6 +617,40 @@ qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha) return (return_status); } +void +qla2x00_abort_fcport_cmds(fc_port_t *fcport) +{ + int cnt; + unsigned long flags; + srb_t *sp; + scsi_qla_host_t *ha = fcport->ha; + scsi_qla_host_t *pha = to_qla_parent(ha); + + spin_lock_irqsave(&pha->hardware_lock, flags); + for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { + sp = pha->outstanding_cmds[cnt]; + if (!sp) + continue; + if (sp->fcport != fcport) + continue; + + spin_unlock_irqrestore(&pha->hardware_lock, flags); + if (ha->isp_ops->abort_command(ha, sp)) { + DEBUG2(qla_printk(KERN_WARNING, ha, + "Abort failed -- %lx\n", sp->cmd->serial_number)); + } else { + if (qla2x00_eh_wait_on_command(ha, sp->cmd) != + QLA_SUCCESS) + DEBUG2(qla_printk(KERN_WARNING, ha, + "Abort failed while waiting -- %lx\n", + sp->cmd->serial_number)); + + } + spin_lock_irqsave(&pha->hardware_lock, flags); + } + spin_unlock_irqrestore(&pha->hardware_lock, flags); +} + static void qla2x00_block_error_handler(struct scsi_cmnd *cmnd) { @@ -1813,7 +1847,6 @@ static inline void qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport, int defer) { - unsigned long flags; struct fc_rport *rport; if (!fcport->rport) @@ -1821,19 +1854,13 @@ qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport, rport = fcport->rport; if (defer) { - spin_lock_irqsave(&fcport->rport_lock, flags); + spin_lock_irq(ha->host->host_lock); fcport->drport = rport; - fcport->rport = NULL; - *(fc_port_t **)rport->dd_data = NULL; - spin_unlock_irqrestore(&fcport->rport_lock, flags); + spin_unlock_irq(ha->host->host_lock); set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags); - } else { - spin_lock_irqsave(&fcport->rport_lock, flags); - fcport->rport = NULL; - *(fc_port_t **)rport->dd_data = NULL; - spin_unlock_irqrestore(&fcport->rport_lock, flags); + qla2xxx_wake_dpc(ha); + } else fc_remote_port_delete(rport); - } } /* -- cgit v1.2.1 From 85821c906cf3563a00a3d98fa380a2581a7a5ff1 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Thu, 10 Jul 2008 16:55:48 -0700 Subject: [SCSI] qla2xxx: Set an rport's dev_loss_tmo value in a consistent manner. As there's no point in adding a fixed-fudge value (originally 5 seconds), honor the user settings only. We also remove the driver's dead-callback get_rport_dev_loss_tmo function (qla2x00_get_rport_loss_tmo()). Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_attr.c | 20 ++------------------ drivers/scsi/qla2xxx/qla_os.c | 2 +- 2 files changed, 3 insertions(+), 19 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index 3112518b0e64..8728e873996d 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -971,27 +971,13 @@ qla2x00_get_starget_port_id(struct scsi_target *starget) fc_starget_port_id(starget) = port_id; } -static void -qla2x00_get_rport_loss_tmo(struct fc_rport *rport) -{ - struct Scsi_Host *host = rport_to_shost(rport); - scsi_qla_host_t *ha = shost_priv(host); - - rport->dev_loss_tmo = ha->port_down_retry_count + 5; -} - static void qla2x00_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) { - struct Scsi_Host *host = rport_to_shost(rport); - scsi_qla_host_t *ha = shost_priv(host); - if (timeout) - ha->port_down_retry_count = timeout; + rport->dev_loss_tmo = timeout; else - ha->port_down_retry_count = 1; - - rport->dev_loss_tmo = ha->port_down_retry_count + 5; + rport->dev_loss_tmo = 1; } static void @@ -1275,7 +1261,6 @@ struct fc_function_template qla2xxx_transport_functions = { .get_starget_port_id = qla2x00_get_starget_port_id, .show_starget_port_id = 1, - .get_rport_dev_loss_tmo = qla2x00_get_rport_loss_tmo, .set_rport_dev_loss_tmo = qla2x00_set_rport_loss_tmo, .show_rport_dev_loss_tmo = 1, @@ -1320,7 +1305,6 @@ struct fc_function_template qla2xxx_transport_vport_functions = { .get_starget_port_id = qla2x00_get_starget_port_id, .show_starget_port_id = 1, - .get_rport_dev_loss_tmo = qla2x00_get_rport_loss_tmo, .set_rport_dev_loss_tmo = qla2x00_set_rport_loss_tmo, .show_rport_dev_loss_tmo = 1, diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index c5ad858e17e6..047ee644aa91 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -1107,7 +1107,7 @@ qla2xxx_slave_configure(struct scsi_device *sdev) else scsi_deactivate_tcq(sdev, ha->max_q_depth); - rport->dev_loss_tmo = ha->port_down_retry_count + 5; + rport->dev_loss_tmo = ha->port_down_retry_count; return 0; } -- cgit v1.2.1 From e5f5f6f72b10c4c6209f0522a7c5b27079d64429 Mon Sep 17 00:00:00 2001 From: Harish Zunjarrao Date: Thu, 10 Jul 2008 16:55:49 -0700 Subject: [SCSI] qla2xxx: Track total number of ISP aborts. This parameter counts the total number of ISP aborts during driver execution. The value is exported through a DEVICE_ATTR() off the scsi_host. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_attr.c | 13 +++++++++++++ drivers/scsi/qla2xxx/qla_def.h | 5 +++++ drivers/scsi/qla2xxx/qla_init.c | 1 + 3 files changed, 19 insertions(+) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index 8728e873996d..43e400894733 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -809,6 +809,16 @@ qla2x00_optrom_fw_version_show(struct device *dev, ha->fw_revision[3]); } +static ssize_t +qla2x00_total_isp_aborts_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + scsi_qla_host_t *ha = shost_priv(class_to_shost(dev)); + + return snprintf(buf, PAGE_SIZE, "%d\n", + ha->qla_stats.total_isp_aborts); +} + static DEVICE_ATTR(driver_version, S_IRUGO, qla2x00_drvr_version_show, NULL); static DEVICE_ATTR(fw_version, S_IRUGO, qla2x00_fw_version_show, NULL); static DEVICE_ATTR(serial_num, S_IRUGO, qla2x00_serial_num_show, NULL); @@ -831,6 +841,8 @@ static DEVICE_ATTR(optrom_fcode_version, S_IRUGO, qla2x00_optrom_fcode_version_show, NULL); static DEVICE_ATTR(optrom_fw_version, S_IRUGO, qla2x00_optrom_fw_version_show, NULL); +static DEVICE_ATTR(total_isp_aborts, S_IRUGO, qla2x00_total_isp_aborts_show, + NULL); struct device_attribute *qla2x00_host_attrs[] = { &dev_attr_driver_version, @@ -849,6 +861,7 @@ struct device_attribute *qla2x00_host_attrs[] = { &dev_attr_optrom_efi_version, &dev_attr_optrom_fcode_version, &dev_attr_optrom_fw_version, + &dev_attr_total_isp_aborts, NULL, }; diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 7b0ddc83413f..fe1eada6cfc2 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -2154,6 +2154,10 @@ struct qla_chip_state_84xx { uint32_t gold_fw_version; }; +struct qla_statistics { + uint32_t total_isp_aborts; +}; + /* * Linux Host Adapter structure */ @@ -2595,6 +2599,7 @@ typedef struct scsi_qla_host { int cur_vport_count; struct qla_chip_state_84xx *cs84xx; + struct qla_statistics qla_stats; } scsi_qla_host_t; diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index c7388fadf225..833a6429d9b9 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -3237,6 +3237,7 @@ qla2x00_abort_isp(scsi_qla_host_t *ha) if (ha->flags.online) { ha->flags.online = 0; clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + ha->qla_stats.total_isp_aborts++; qla_printk(KERN_INFO, ha, "Performing ISP error recovery - ha= %p.\n", ha); -- cgit v1.2.1 From 032d8dd739eccbb39c78c901beece70062d1820d Mon Sep 17 00:00:00 2001 From: Harish Zunjarrao Date: Thu, 10 Jul 2008 16:55:50 -0700 Subject: [SCSI] qla2xxx: Add LIP count to FC-transport statistics. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_attr.c | 1 + drivers/scsi/qla2xxx/qla_def.h | 3 ++- 2 files changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index 43e400894733..40b5d656ab6c 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -1071,6 +1071,7 @@ qla2x00_get_fc_host_stats(struct Scsi_Host *shost) pfc_host_stat->invalid_tx_word_count = stats->inval_xmit_word_cnt; pfc_host_stat->invalid_crc_count = stats->inval_crc_cnt; if (IS_FWI2_CAPABLE(ha)) { + pfc_host_stat->lip_count = stats->lip_cnt; pfc_host_stat->tx_frames = stats->tx_frames; pfc_host_stat->rx_frames = stats->rx_frames; pfc_host_stat->dumped_frames = stats->dumped_frames; diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index fe1eada6cfc2..2b1bc57adf2d 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -864,7 +864,8 @@ struct link_statistics { uint32_t prim_seq_err_cnt; uint32_t inval_xmit_word_cnt; uint32_t inval_crc_cnt; - uint32_t unused1[0x1b]; + uint32_t lip_cnt; + uint32_t unused1[0x1a]; uint32_t tx_frames; uint32_t rx_frames; uint32_t dumped_frames; -- cgit v1.2.1 From 711c1d916be083a5bf4fbc8e66201e7e9f8b9334 Mon Sep 17 00:00:00 2001 From: Seokmann Ju Date: Thu, 10 Jul 2008 16:55:51 -0700 Subject: [SCSI] qla2xxx: Cleanup NPIV related functions Removed repeated or unnecessary operations during vport creation/deletion. Signed-off-by: Shyam Sundar Signed-off-by: Seokmann Ju Signed-off-by: Ravi Anand Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_attr.c | 6 ------ drivers/scsi/qla2xxx/qla_def.h | 1 - drivers/scsi/qla2xxx/qla_gbl.h | 1 - drivers/scsi/qla2xxx/qla_mid.c | 11 +++-------- drivers/scsi/qla2xxx/qla_os.c | 8 +------- 5 files changed, 4 insertions(+), 23 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index 40b5d656ab6c..fe8d70862d59 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -1200,17 +1200,11 @@ vport_create_failed_2: static int qla24xx_vport_delete(struct fc_vport *fc_vport) { - scsi_qla_host_t *ha = shost_priv(fc_vport->shost); scsi_qla_host_t *vha = fc_vport->dd_data; qla24xx_disable_vp(vha); qla24xx_deallocate_vp_id(vha); - mutex_lock(&ha->vport_lock); - ha->cur_vport_count--; - clear_bit(vha->vp_idx, ha->vp_idx_map); - mutex_unlock(&ha->vport_lock); - kfree(vha->node_name); kfree(vha->port_name); diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 2b1bc57adf2d..00c7052a70a3 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -2170,7 +2170,6 @@ typedef struct scsi_qla_host { struct pci_dev *pdev; unsigned long host_no; - unsigned long instance; volatile struct { uint32_t init_done :1; diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index 5a50fb749728..1d57ddd74fd5 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -62,7 +62,6 @@ extern int ql2xfdmienable; extern int ql2xallocfwdump; extern int ql2xextended_error_logging; extern int ql2xqfullrampup; -extern int num_hosts; extern int qla2x00_loop_reset(scsi_qla_host_t *); extern void qla2x00_abort_all_cmds(scsi_qla_host_t *, int); diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c index 62a3ad6e8ecb..fa35339b7b69 100644 --- a/drivers/scsi/qla2xxx/qla_mid.c +++ b/drivers/scsi/qla2xxx/qla_mid.c @@ -43,6 +43,7 @@ qla24xx_allocate_vp_id(scsi_qla_host_t *vha) set_bit(vp_id, ha->vp_idx_map); ha->num_vhosts++; + ha->cur_vport_count++; vha->vp_idx = vp_id; list_add_tail(&vha->vp_list, &ha->vp_list); mutex_unlock(&ha->vport_lock); @@ -58,6 +59,7 @@ qla24xx_deallocate_vp_id(scsi_qla_host_t *vha) mutex_lock(&ha->vport_lock); vp_id = vha->vp_idx; ha->num_vhosts--; + ha->cur_vport_count--; clear_bit(vp_id, ha->vp_idx_map); list_del(&vha->vp_list); mutex_unlock(&ha->vport_lock); @@ -390,7 +392,6 @@ qla24xx_create_vhost(struct fc_vport *fc_vport) vha->parent = ha; vha->fc_vport = fc_vport; vha->device_flags = 0; - vha->instance = num_hosts; vha->vp_idx = qla24xx_allocate_vp_id(vha); if (vha->vp_idx > ha->max_npiv_vports) { DEBUG15(printk("scsi(%ld): Couldn't allocate vp_id.\n", @@ -428,7 +429,7 @@ qla24xx_create_vhost(struct fc_vport *fc_vport) host->max_cmd_len = MAX_CMDSZ; host->max_channel = MAX_BUSES - 1; host->max_lun = MAX_LUNS; - host->unique_id = vha->instance; + host->unique_id = host->host_no; host->max_id = MAX_TARGETS_2200; host->transportt = qla2xxx_transport_vport_template; @@ -436,12 +437,6 @@ qla24xx_create_vhost(struct fc_vport *fc_vport) vha->host_no, vha)); vha->flags.init_done = 1; - num_hosts++; - - mutex_lock(&ha->vport_lock); - set_bit(vha->vp_idx, ha->vp_idx_map); - ha->cur_vport_count++; - mutex_unlock(&ha->vport_lock); return vha; diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 047ee644aa91..e98d502d649e 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -27,7 +27,6 @@ char qla2x00_version_str[40]; */ static struct kmem_cache *srb_cachep; -int num_hosts; int ql2xlogintimeout = 20; module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR); MODULE_PARM_DESC(ql2xlogintimeout, @@ -1663,9 +1662,6 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) } host->can_queue = ha->request_q_length + 128; - /* load the F/W, read paramaters, and init the H/W */ - ha->instance = num_hosts; - mutex_init(&ha->vport_lock); init_completion(&ha->mbx_cmd_comp); complete(&ha->mbx_cmd_comp); @@ -1713,7 +1709,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) host->this_id = 255; host->cmd_per_lun = 3; - host->unique_id = ha->instance; + host->unique_id = host->host_no; host->max_cmd_len = MAX_CMDSZ; host->max_channel = MAX_BUSES - 1; host->max_lun = MAX_LUNS; @@ -1734,8 +1730,6 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) ha->flags.init_done = 1; ha->flags.online = 1; - num_hosts++; - ret = scsi_add_host(host, &pdev->dev); if (ret) goto probe_failed; -- cgit v1.2.1 From e5896bd5dcf71fa43ddcc545340b847c13d29c44 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Thu, 10 Jul 2008 16:55:52 -0700 Subject: [SCSI] qla2xxx: Allow the user the option of disabling iIDMA. iIDMA support requires the driver issue several additional fabric-managegment (FM) commands per port discovered during SNS scanning -- GFPN (Get Fabric Port Name) and GPSC (Get Port Speed Capabilities). It has been found during testing that some switches do not respond as *well* as expected to these commands (silence -- no ACC nor BS_RJT). So, to handle such conditions, allow the user the ability to indirectly disable the FM commands by disabling iIDMA with the ql2xiidmaenable module-parameter. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_gbl.h | 1 + drivers/scsi/qla2xxx/qla_init.c | 3 ++- drivers/scsi/qla2xxx/qla_os.c | 7 +++++++ 3 files changed, 10 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index 1d57ddd74fd5..f921ccdcc610 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -62,6 +62,7 @@ extern int ql2xfdmienable; extern int ql2xallocfwdump; extern int ql2xextended_error_logging; extern int ql2xqfullrampup; +extern int ql2xiidmaenable; extern int qla2x00_loop_reset(scsi_qla_host_t *); extern void qla2x00_abort_all_cmds(scsi_qla_host_t *, int); diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 833a6429d9b9..f4cd2cd874b9 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -2559,7 +2559,8 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports) } else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) { kfree(swl); swl = NULL; - } else if (qla2x00_gfpn_id(ha, swl) == QLA_SUCCESS) { + } else if (ql2xiidmaenable && + qla2x00_gfpn_id(ha, swl) == QLA_SUCCESS) { qla2x00_gpsc(ha, swl); } } diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index e98d502d649e..9c3a57fa5060 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -86,6 +86,13 @@ MODULE_PARM_DESC(ql2xqfullrampup, "depth for a device after a queue-full condition has been " "detected. Default is 120 seconds."); +int ql2xiidmaenable=1; +module_param(ql2xiidmaenable, int, S_IRUGO|S_IRUSR); +MODULE_PARM_DESC(ql2xiidmaenable, + "Enables iIDMA settings " + "Default is 1 - perform iIDMA. 0 - no iIDMA."); + + /* * SCSI host template entry points */ -- cgit v1.2.1 From 1ee2714632ce3f7e6477069b41cb685112f5f217 Mon Sep 17 00:00:00 2001 From: Joe Carnuccio Date: Thu, 10 Jul 2008 16:55:53 -0700 Subject: [SCSI] qla2xxx: Retrieve board serial-number and description from VPD. Recent ISPs have this information written at manufacturing time, so use the information. This also reduces future churn of the qla_devtbl.h file contents, as the driver can now depend on the information to be present in VPD. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_attr.c | 6 ++++-- drivers/scsi/qla2xxx/qla_def.h | 2 +- drivers/scsi/qla2xxx/qla_gbl.h | 1 + drivers/scsi/qla2xxx/qla_init.c | 11 ++++++++-- drivers/scsi/qla2xxx/qla_sup.c | 45 +++++++++++++++++++++++++++++++++++++++++ 5 files changed, 60 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index fe8d70862d59..612e3d0c7bd1 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -557,8 +557,10 @@ qla2x00_serial_num_show(struct device *dev, struct device_attribute *attr, scsi_qla_host_t *ha = shost_priv(class_to_shost(dev)); uint32_t sn; - if (IS_FWI2_CAPABLE(ha)) - return snprintf(buf, PAGE_SIZE, "\n"); + if (IS_FWI2_CAPABLE(ha)) { + qla2xxx_get_vpd_field(ha, "SN", buf, PAGE_SIZE); + return snprintf(buf, PAGE_SIZE, "%s\n", buf); + } sn = ((ha->serial0 & 0x1f) << 16) | (ha->serial2 << 8) | ha->serial1; return snprintf(buf, PAGE_SIZE, "%c%05d\n", 'A' + sn / 100000, diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 00c7052a70a3..6da31ba94404 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -2518,7 +2518,7 @@ typedef struct scsi_qla_host { uint8_t model_number[16+1]; #define BINZERO "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0" - char *model_desc; + char model_desc[80]; uint8_t adapter_id[16+1]; uint8_t *node_name; diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index f921ccdcc610..0b156735e9a6 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -314,6 +314,7 @@ extern int qla2xxx_hw_event_log(scsi_qla_host_t *, uint16_t , uint16_t, uint16_t, uint16_t); extern void qla2xxx_get_flash_info(scsi_qla_host_t *); +extern int qla2xxx_get_vpd_field(scsi_qla_host_t *, char *, char *, size_t); /* * Global Function Prototypes in qla_dbg.c source file. diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index f4cd2cd874b9..08bdba520c90 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -1501,18 +1501,25 @@ qla2x00_set_model_info(scsi_qla_host_t *ha, uint8_t *model, size_t len, char *de index = (ha->pdev->subsystem_device & 0xff); if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC && index < QLA_MODEL_NAMES) - ha->model_desc = qla2x00_model_name[index * 2 + 1]; + strncpy(ha->model_desc, + qla2x00_model_name[index * 2 + 1], + sizeof(ha->model_desc) - 1); } else { index = (ha->pdev->subsystem_device & 0xff); if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC && index < QLA_MODEL_NAMES) { strcpy(ha->model_number, qla2x00_model_name[index * 2]); - ha->model_desc = qla2x00_model_name[index * 2 + 1]; + strncpy(ha->model_desc, + qla2x00_model_name[index * 2 + 1], + sizeof(ha->model_desc) - 1); } else { strcpy(ha->model_number, def); } } + if (IS_FWI2_CAPABLE(ha)) + qla2xxx_get_vpd_field(ha, "\x82", ha->model_desc, + sizeof(ha->model_desc)); } /* On sparc systems, obtain port and node WWN from firmware diff --git a/drivers/scsi/qla2xxx/qla_sup.c b/drivers/scsi/qla2xxx/qla_sup.c index ebea62246c80..1bca74474935 100644 --- a/drivers/scsi/qla2xxx/qla_sup.c +++ b/drivers/scsi/qla2xxx/qla_sup.c @@ -2302,6 +2302,51 @@ qla24xx_get_flash_version(scsi_qla_host_t *ha, void *mbuf) return ret; } +static int +qla2xxx_is_vpd_valid(uint8_t *pos, uint8_t *end) +{ + if (pos >= end || *pos != 0x82) + return 0; + + pos += 3 + pos[1]; + if (pos >= end || *pos != 0x90) + return 0; + + pos += 3 + pos[1]; + if (pos >= end || *pos != 0x78) + return 0; + + return 1; +} + +int +qla2xxx_get_vpd_field(scsi_qla_host_t *ha, char *key, char *str, size_t size) +{ + uint8_t *pos = ha->vpd; + uint8_t *end = pos + ha->vpd_size; + int len = 0; + + if (!IS_FWI2_CAPABLE(ha) || !qla2xxx_is_vpd_valid(pos, end)) + return 0; + + while (pos < end && *pos != 0x78) { + len = (*pos == 0x82) ? pos[1] : pos[2]; + + if (!strncmp(pos, key, strlen(key))) + break; + + if (*pos != 0x90 && *pos != 0x91) + pos += len; + + pos += 3; + } + + if (pos < end - len && *pos != 0x78) + return snprintf(str, size, "%.*s", len, pos + 3); + + return 0; +} + static int qla2xxx_hw_event_store(scsi_qla_host_t *ha, uint32_t *fdata) { -- cgit v1.2.1 From 436a7b11234ccccd91e3000aacdbdd25bd7847a8 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Thu, 10 Jul 2008 16:55:54 -0700 Subject: [SCSI] qla2xxx: Swap enablement order of EFT and FCE. The firmware group has suggested that FCE (Fibre Channel Event) tracing be enabled prior to EFT (Extended Firmware Tracing) to maximize the capturing of data on the wire. This change has no real semantic effect on driver operation, as it's mostly a shuffling of code. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_init.c | 80 ++++++++++++++++++++--------------------- 1 file changed, 40 insertions(+), 40 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 08bdba520c90..80f4f9de8182 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -768,42 +768,16 @@ qla2x00_alloc_fw_dump(scsi_qla_host_t *ha) mem_size = (ha->fw_memory_size - 0x100000 + 1) * sizeof(uint32_t); - /* Allocate memory for Extended Trace Buffer. */ - tc = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &tc_dma, - GFP_KERNEL); - if (!tc) { - qla_printk(KERN_WARNING, ha, "Unable to allocate " - "(%d KB) for EFT.\n", EFT_SIZE / 1024); - goto cont_alloc; - } - - memset(tc, 0, EFT_SIZE); - rval = qla2x00_enable_eft_trace(ha, tc_dma, EFT_NUM_BUFFERS); - if (rval) { - qla_printk(KERN_WARNING, ha, "Unable to initialize " - "EFT (%d).\n", rval); - dma_free_coherent(&ha->pdev->dev, EFT_SIZE, tc, - tc_dma); - goto cont_alloc; - } - - qla_printk(KERN_INFO, ha, "Allocated (%d KB) for EFT...\n", - EFT_SIZE / 1024); - - eft_size = EFT_SIZE; - ha->eft_dma = tc_dma; - ha->eft = tc; - /* Allocate memory for Fibre Channel Event Buffer. */ if (!IS_QLA25XX(ha)) - goto cont_alloc; + goto try_eft; tc = dma_alloc_coherent(&ha->pdev->dev, FCE_SIZE, &tc_dma, GFP_KERNEL); if (!tc) { qla_printk(KERN_WARNING, ha, "Unable to allocate " "(%d KB) for FCE.\n", FCE_SIZE / 1024); - goto cont_alloc; + goto try_eft; } memset(tc, 0, FCE_SIZE); @@ -815,7 +789,7 @@ qla2x00_alloc_fw_dump(scsi_qla_host_t *ha) dma_free_coherent(&ha->pdev->dev, FCE_SIZE, tc, tc_dma); ha->flags.fce_enabled = 0; - goto cont_alloc; + goto try_eft; } qla_printk(KERN_INFO, ha, "Allocated (%d KB) for FCE...\n", @@ -825,6 +799,32 @@ qla2x00_alloc_fw_dump(scsi_qla_host_t *ha) ha->flags.fce_enabled = 1; ha->fce_dma = tc_dma; ha->fce = tc; +try_eft: + /* Allocate memory for Extended Trace Buffer. */ + tc = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &tc_dma, + GFP_KERNEL); + if (!tc) { + qla_printk(KERN_WARNING, ha, "Unable to allocate " + "(%d KB) for EFT.\n", EFT_SIZE / 1024); + goto cont_alloc; + } + + memset(tc, 0, EFT_SIZE); + rval = qla2x00_enable_eft_trace(ha, tc_dma, EFT_NUM_BUFFERS); + if (rval) { + qla_printk(KERN_WARNING, ha, "Unable to initialize " + "EFT (%d).\n", rval); + dma_free_coherent(&ha->pdev->dev, EFT_SIZE, tc, + tc_dma); + goto cont_alloc; + } + + qla_printk(KERN_INFO, ha, "Allocated (%d KB) for EFT...\n", + EFT_SIZE / 1024); + + eft_size = EFT_SIZE; + ha->eft_dma = tc_dma; + ha->eft = tc; } cont_alloc: req_q_size = ha->request_q_length * sizeof(request_t); @@ -3286,17 +3286,6 @@ qla2x00_abort_isp(scsi_qla_host_t *ha) ha->isp_abort_cnt = 0; clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags); - if (ha->eft) { - memset(ha->eft, 0, EFT_SIZE); - rval = qla2x00_enable_eft_trace(ha, - ha->eft_dma, EFT_NUM_BUFFERS); - if (rval) { - qla_printk(KERN_WARNING, ha, - "Unable to reinitialize EFT " - "(%d).\n", rval); - } - } - if (ha->fce) { ha->flags.fce_enabled = 1; memset(ha->fce, 0, @@ -3311,6 +3300,17 @@ qla2x00_abort_isp(scsi_qla_host_t *ha) ha->flags.fce_enabled = 0; } } + + if (ha->eft) { + memset(ha->eft, 0, EFT_SIZE); + rval = qla2x00_enable_eft_trace(ha, + ha->eft_dma, EFT_NUM_BUFFERS); + if (rval) { + qla_printk(KERN_WARNING, ha, + "Unable to reinitialize EFT " + "(%d).\n", rval); + } + } } else { /* failed the ISP abort */ ha->flags.online = 1; if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) { -- cgit v1.2.1 From 246de42cfc0abc4e25585f2dca53f8226f62391c Mon Sep 17 00:00:00 2001 From: Seokmann Ju Date: Thu, 10 Jul 2008 16:55:55 -0700 Subject: [SCSI] qla2xxx: Always aquire the parent's hardware_lock. While issuing a marker, manipulating the request/response queues and modifying the outstanding command array. Signed-off-by: Seokmann Ju Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_init.c | 2 +- drivers/scsi/qla2xxx/qla_iocb.c | 23 +++++++++++++---------- drivers/scsi/qla2xxx/qla_mbx.c | 10 ++++++---- 3 files changed, 20 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 80f4f9de8182..4c83ff81d79b 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -4052,7 +4052,7 @@ qla24xx_configure_vhba(scsi_qla_host_t *ha) rval = qla2x00_fw_ready(ha->parent); if (rval == QLA_SUCCESS) { clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); - qla2x00_marker(ha->parent, 0, 0, MK_SYNC_ALL); + qla2x00_marker(ha, 0, 0, MK_SYNC_ALL); } ha->flags.management_server_logged_in = 0; diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index 5489d5024673..6e14c8eaca82 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -269,7 +269,7 @@ qla2x00_start_scsi(srb_t *sp) { int ret, nseg; unsigned long flags; - scsi_qla_host_t *ha; + scsi_qla_host_t *ha, *pha; struct scsi_cmnd *cmd; uint32_t *clr_ptr; uint32_t index; @@ -283,6 +283,7 @@ qla2x00_start_scsi(srb_t *sp) /* Setup device pointers. */ ret = 0; ha = sp->ha; + pha = to_qla_parent(ha); reg = &ha->iobase->isp; cmd = sp->cmd; /* So we know we haven't pci_map'ed anything yet */ @@ -297,7 +298,7 @@ qla2x00_start_scsi(srb_t *sp) } /* Acquire ring specific lock */ - spin_lock_irqsave(&ha->hardware_lock, flags); + spin_lock_irqsave(&pha->hardware_lock, flags); /* Check for room in outstanding command list. */ handle = ha->current_outstanding_cmd; @@ -386,14 +387,14 @@ qla2x00_start_scsi(srb_t *sp) ha->response_ring_ptr->signature != RESPONSE_PROCESSED) qla2x00_process_response_queue(ha); - spin_unlock_irqrestore(&ha->hardware_lock, flags); + spin_unlock_irqrestore(&pha->hardware_lock, flags); return (QLA_SUCCESS); queuing_error: if (tot_dsds) scsi_dma_unmap(cmd); - spin_unlock_irqrestore(&ha->hardware_lock, flags); + spin_unlock_irqrestore(&pha->hardware_lock, flags); return (QLA_FUNCTION_FAILED); } @@ -454,10 +455,11 @@ qla2x00_marker(scsi_qla_host_t *ha, uint16_t loop_id, uint16_t lun, { int ret; unsigned long flags = 0; + scsi_qla_host_t *pha = to_qla_parent(ha); - spin_lock_irqsave(&ha->hardware_lock, flags); + spin_lock_irqsave(&pha->hardware_lock, flags); ret = __qla2x00_marker(ha, loop_id, lun, type); - spin_unlock_irqrestore(&ha->hardware_lock, flags); + spin_unlock_irqrestore(&pha->hardware_lock, flags); return (ret); } @@ -672,7 +674,7 @@ qla24xx_start_scsi(srb_t *sp) { int ret, nseg; unsigned long flags; - scsi_qla_host_t *ha; + scsi_qla_host_t *ha, *pha; struct scsi_cmnd *cmd; uint32_t *clr_ptr; uint32_t index; @@ -686,6 +688,7 @@ qla24xx_start_scsi(srb_t *sp) /* Setup device pointers. */ ret = 0; ha = sp->ha; + pha = to_qla_parent(ha); reg = &ha->iobase->isp24; cmd = sp->cmd; /* So we know we haven't pci_map'ed anything yet */ @@ -700,7 +703,7 @@ qla24xx_start_scsi(srb_t *sp) } /* Acquire ring specific lock */ - spin_lock_irqsave(&ha->hardware_lock, flags); + spin_lock_irqsave(&pha->hardware_lock, flags); /* Check for room in outstanding command list. */ handle = ha->current_outstanding_cmd; @@ -795,14 +798,14 @@ qla24xx_start_scsi(srb_t *sp) ha->response_ring_ptr->signature != RESPONSE_PROCESSED) qla24xx_process_response_queue(ha); - spin_unlock_irqrestore(&ha->hardware_lock, flags); + spin_unlock_irqrestore(&pha->hardware_lock, flags); return QLA_SUCCESS; queuing_error: if (tot_dsds) scsi_dma_unmap(cmd); - spin_unlock_irqrestore(&ha->hardware_lock, flags); + spin_unlock_irqrestore(&pha->hardware_lock, flags); return QLA_FUNCTION_FAILED; } diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index 250d2f604397..dc5788bbc549 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -749,17 +749,18 @@ qla2x00_abort_command(scsi_qla_host_t *ha, srb_t *sp) uint32_t handle; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; + scsi_qla_host_t *pha = to_qla_parent(ha); DEBUG11(printk("qla2x00_abort_command(%ld): entered.\n", ha->host_no)); fcport = sp->fcport; - spin_lock_irqsave(&ha->hardware_lock, flags); + spin_lock_irqsave(&pha->hardware_lock, flags); for (handle = 1; handle < MAX_OUTSTANDING_COMMANDS; handle++) { if (ha->outstanding_cmds[handle] == sp) break; } - spin_unlock_irqrestore(&ha->hardware_lock, flags); + spin_unlock_irqrestore(&pha->hardware_lock, flags); if (handle == MAX_OUTSTANDING_COMMANDS) { /* command not found */ @@ -2161,17 +2162,18 @@ qla24xx_abort_command(scsi_qla_host_t *ha, srb_t *sp) struct abort_entry_24xx *abt; dma_addr_t abt_dma; uint32_t handle; + scsi_qla_host_t *pha = to_qla_parent(ha); DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); fcport = sp->fcport; - spin_lock_irqsave(&ha->hardware_lock, flags); + spin_lock_irqsave(&pha->hardware_lock, flags); for (handle = 1; handle < MAX_OUTSTANDING_COMMANDS; handle++) { if (ha->outstanding_cmds[handle] == sp) break; } - spin_unlock_irqrestore(&ha->hardware_lock, flags); + spin_unlock_irqrestore(&pha->hardware_lock, flags); if (handle == MAX_OUTSTANDING_COMMANDS) { /* Command not found. */ return QLA_FUNCTION_FAILED; -- cgit v1.2.1 From 8f0d6436d215a2e0033ab2af192ac7e4b300bd3e Mon Sep 17 00:00:00 2001 From: Seokmann Ju Date: Thu, 10 Jul 2008 16:55:56 -0700 Subject: [SCSI] qla2xxx: Correct fcport state-management during loss. All fcport->state management should be done within qla2x00_mark_device_lost(), the assignment of state within qla2x00_mark_vp_devices_dead() caused associated rports to not be removed. Signed-off-by: Seokmann Ju Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_mid.c | 1 - drivers/scsi/qla2xxx/qla_os.c | 13 +++---------- 2 files changed, 3 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c index fa35339b7b69..e7565765fa14 100644 --- a/drivers/scsi/qla2xxx/qla_mid.c +++ b/drivers/scsi/qla2xxx/qla_mid.c @@ -105,7 +105,6 @@ qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha) "loop_id=0x%04x :%x\n", vha->host_no, fcport->loop_id, fcport->vp_idx)); - atomic_set(&fcport->state, FCS_DEVICE_DEAD); qla2x00_mark_device_lost(vha, fcport, 0, 0); } } diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 9c3a57fa5060..3f391698e1ce 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -1931,7 +1931,7 @@ qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer) scsi_qla_host_t *pha = to_qla_parent(ha); list_for_each_entry(fcport, &pha->fcports, list) { - if (ha->vp_idx != 0 && ha->vp_idx != fcport->vp_idx) + if (ha->vp_idx != fcport->vp_idx) continue; /* * No point in marking the device as lost, if the device is @@ -1939,17 +1939,10 @@ qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer) */ if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD) continue; - if (atomic_read(&fcport->state) == FCS_ONLINE) { - if (defer) - qla2x00_schedule_rport_del(ha, fcport, defer); - else if (ha->vp_idx == fcport->vp_idx) - qla2x00_schedule_rport_del(ha, fcport, defer); - } + if (atomic_read(&fcport->state) == FCS_ONLINE) + qla2x00_schedule_rport_del(ha, fcport, defer); atomic_set(&fcport->state, FCS_DEVICE_LOST); } - - if (defer) - qla2xxx_wake_dpc(ha); } /* -- cgit v1.2.1 From da57bf8f25faf97308d9f4d0b87e8b69317a2fdf Mon Sep 17 00:00:00 2001 From: Seokmann Ju Date: Thu, 10 Jul 2008 16:55:57 -0700 Subject: [SCSI] qla2xxx: Correct vport management of MBA_PORT_UPDATE. By allowing the qla2x00_alert_all_vps() to manage per-vport recognition of the MBA. Signed-off-by: Seokmann Ju Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_isr.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index ec63b79f900a..874d802edb7d 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -542,10 +542,6 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb) break; case MBA_PORT_UPDATE: /* Port database update */ - /* Only handle SCNs for our Vport index. */ - if (ha->parent && ha->vp_idx != (mb[3] & 0xff)) - break; - /* * If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET * event etc. earlier indicating loop is down) then process -- cgit v1.2.1 From 5de1f70f4103253f72d92da16d9618bc573b4534 Mon Sep 17 00:00:00 2001 From: Seokmann Ju Date: Thu, 10 Jul 2008 16:55:58 -0700 Subject: [SCSI] qla2xxx: Correct rport/fcport visibility-state handling during loop-resync. There were several issues here, one, during RSCN handling if a follow-on RSCN occurred (within interrupt context) the DPC thread could inadvertantly leave the fcport in a stale lost state. Secondly, scheduled rport removal is handled exclusively by the 'parent' DPC thread, so wake up the proper thread. Finally, process vport loop-resync's only when the vport has in an "active" state (ID acquired). Signed-off-by: Seokmann Ju Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_init.c | 4 +++- drivers/scsi/qla2xxx/qla_mid.c | 3 ++- drivers/scsi/qla2xxx/qla_os.c | 5 +++-- 3 files changed, 8 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 4c83ff81d79b..f8cfeb0e91a6 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -2012,8 +2012,10 @@ qla2x00_configure_loop(scsi_qla_host_t *ha) if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { if (test_bit(LOCAL_LOOP_UPDATE, &save_flags)) set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); - if (test_bit(RSCN_UPDATE, &save_flags)) + if (test_bit(RSCN_UPDATE, &save_flags)) { + ha->flags.rscn_queue_overflow = 1; set_bit(RSCN_UPDATE, &ha->dpc_flags); + } } return (rval); diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c index e7565765fa14..9a850a24b38a 100644 --- a/drivers/scsi/qla2xxx/qla_mid.c +++ b/drivers/scsi/qla2xxx/qla_mid.c @@ -277,7 +277,8 @@ qla2x00_do_dpc_vp(scsi_qla_host_t *vha) clear_bit(RESET_ACTIVE, &vha->dpc_flags); } - if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) { + if (atomic_read(&vha->vp_state) == VP_ACTIVE && + test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) { if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) { qla2x00_loop_resync(vha); clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags); diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 3f391698e1ce..0f44914b41d7 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -1849,6 +1849,7 @@ qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport, int defer) { struct fc_rport *rport; + scsi_qla_host_t *pha = to_qla_parent(ha); if (!fcport->rport) return; @@ -1858,8 +1859,8 @@ qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport, spin_lock_irq(ha->host->host_lock); fcport->drport = rport; spin_unlock_irq(ha->host->host_lock); - set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags); - qla2xxx_wake_dpc(ha); + set_bit(FCPORT_UPDATE_NEEDED, &pha->dpc_flags); + qla2xxx_wake_dpc(pha); } else fc_remote_port_delete(rport); } -- cgit v1.2.1 From 031e134e5f95233d80fb1b62fdaf5e1be587597c Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Thu, 10 Jul 2008 16:55:59 -0700 Subject: [SCSI] qla2xxx: Skip FDMI registration on ISP21xx/22xx parts. Firmware does not have the facilities to issue management server IOCBs. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_gs.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c index 4cb80b476c85..c2a4bfbcb05b 100644 --- a/drivers/scsi/qla2xxx/qla_gs.c +++ b/drivers/scsi/qla2xxx/qla_gs.c @@ -1661,6 +1661,12 @@ qla2x00_fdmi_register(scsi_qla_host_t *ha) { int rval; + if (IS_QLA2100(ha) || IS_QLA2200(ha)) { + DEBUG2(printk("scsi(%ld): FDMI unsupported on " + "ISP2100/ISP2200.\n", ha->host_no)); + return QLA_SUCCESS; + } + rval = qla2x00_mgmt_svr_login(ha); if (rval) return rval; -- cgit v1.2.1 From e792121ec85672c1fa48f79d13986a3f4f56c590 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Thu, 10 Jul 2008 16:56:00 -0700 Subject: [SCSI] qla2xxx: Correct overflow during dump-processing on large-memory ISP23xx parts. Total ram words can exceed a 16bit value on large-memory boards. Safely extend to a 32bit width. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_dbg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c index cbef785765cf..510ba64bc286 100644 --- a/drivers/scsi/qla2xxx/qla_dbg.c +++ b/drivers/scsi/qla2xxx/qla_dbg.c @@ -216,7 +216,7 @@ qla24xx_soft_reset(scsi_qla_host_t *ha) static int qla2xxx_dump_ram(scsi_qla_host_t *ha, uint32_t addr, uint16_t *ram, - uint16_t ram_words, void **nxt) + uint32_t ram_words, void **nxt) { int rval; uint32_t cnt, stat, timer, words, idx; -- cgit v1.2.1 From 42e421b184967c8bc70d72eed8e1b179e9a51acb Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Thu, 10 Jul 2008 16:56:01 -0700 Subject: [SCSI] qla2xxx: Verify the RISC is not in ROM code if firmware-load is disabled. Add an additional check to verify that the current executing firmware is in fact non-ROM code. The non-ROM Get-ID mailbox command is used for verification. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_init.c | 7 +++++++ drivers/scsi/qla2xxx/qla_mbx.c | 2 ++ 2 files changed, 9 insertions(+) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index f8cfeb0e91a6..fd3ff5e57133 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -334,6 +334,8 @@ static int qla2x00_isp_firmware(scsi_qla_host_t *ha) { int rval; + uint16_t loop_id, topo, sw_cap; + uint8_t domain, area, al_pa; /* Assume loading risc code */ rval = QLA_FUNCTION_FAILED; @@ -345,6 +347,11 @@ qla2x00_isp_firmware(scsi_qla_host_t *ha) /* Verify checksum of loaded RISC code. */ rval = qla2x00_verify_checksum(ha, ha->fw_srisc_address); + if (rval == QLA_SUCCESS) { + /* And, verify we are not in ROM code. */ + rval = qla2x00_get_adapter_id(ha, &loop_id, &al_pa, + &area, &domain, &topo, &sw_cap); + } } if (rval) { diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index dc5788bbc549..7d7de592f720 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -919,6 +919,8 @@ qla2x00_get_adapter_id(scsi_qla_host_t *ha, uint16_t *id, uint8_t *al_pa, rval = qla2x00_mailbox_command(ha, mcp); if (mcp->mb[0] == MBS_COMMAND_ERROR) rval = QLA_COMMAND_ERROR; + else if (mcp->mb[0] == MBS_INVALID_COMMAND) + rval = QLA_INVALID_COMMAND; /* Return data. */ *id = mcp->mb[1]; -- cgit v1.2.1 From 6d0525292ad13f17abcd4a21e488d5b667e90668 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Thu, 10 Jul 2008 16:56:02 -0700 Subject: [SCSI] qla2xxx: Don't hardcode fw_transfer_size for ISP2[45]xx parts. Use the full buffer size available, as there's no reason to limit the firwmare-image load-segment size for these parts. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index fd3ff5e57133..44c0117c5d2b 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -729,7 +729,7 @@ qla24xx_chip_diag(scsi_qla_host_t *ha) /* Perform RISC reset. */ qla24xx_reset_risc(ha); - ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024; + ha->fw_transfer_size = REQUEST_ENTRY_SIZE * ha->request_q_length; rval = qla2x00_mbx_reg_test(ha); if (rval) { -- cgit v1.2.1 From f0773b5ff6d6978c01525f0c34db42d5cedb9394 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Thu, 10 Jul 2008 16:56:03 -0700 Subject: [SCSI] qla2xxx: Update version number to 8.02.01-k5. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_version.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h index d058c8862b35..ae60229472fd 100644 --- a/drivers/scsi/qla2xxx/qla_version.h +++ b/drivers/scsi/qla2xxx/qla_version.h @@ -7,7 +7,7 @@ /* * Driver version */ -#define QLA2XXX_VERSION "8.02.01-k4" +#define QLA2XXX_VERSION "8.02.01-k5" #define QLA_DRIVER_MAJOR_VER 8 #define QLA_DRIVER_MINOR_VER 2 -- cgit v1.2.1 From 626dcb1ee39aa1010c27df31970ff0ecfb287208 Mon Sep 17 00:00:00 2001 From: Kai Makisara Date: Fri, 11 Jul 2008 15:05:25 +0300 Subject: [SCSI] st: Move buffer pointer back when data could not be written. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Move buffer pointer back when data could not be written. Bug found by Mike Christie. Signed-off-by: Kai Mäkisara Signed-off-by: James Bottomley --- drivers/scsi/st.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 4684cc716aa4..41b1f81b1651 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -17,7 +17,7 @@ Last modified: 18-JAN-1998 Richard Gooch Devfs support */ -static const char *verstr = "20080224"; +static const char *verstr = "20080504"; #include @@ -1670,6 +1670,7 @@ st_write(struct file *filp, const char __user *buf, size_t count, loff_t * ppos) if (undone <= do_count) { /* Only data from this write is not written */ count += undone; + b_point -= undone; do_count -= undone; if (STp->block_size) blks = (transfer - undone) / STp->block_size; -- cgit v1.2.1 From 786231af0a4ac6d78cef51fa7e9c3dd63f016195 Mon Sep 17 00:00:00 2001 From: Kai Makisara Date: Fri, 11 Jul 2008 15:06:40 +0300 Subject: [SCSI] st: Remove bogus memset MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Mike Christie noticed a bogus memset. It can be removed as dead code since the number of bytes in the driver buffer in fixed block mode is always a multiple of the tape block size. Signed-off-by: Kai Mäkisara Signed-off-by: James Bottomley --- drivers/scsi/st.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 41b1f81b1651..c2bb53e3d941 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -631,7 +631,7 @@ static int cross_eof(struct scsi_tape * STp, int forward) /* Flush the write buffer (never need to write if variable blocksize). */ static int st_flush_write_buffer(struct scsi_tape * STp) { - int offset, transfer, blks; + int transfer, blks; int result; unsigned char cmd[MAX_COMMAND_SIZE]; struct st_request *SRpnt; @@ -644,14 +644,10 @@ static int st_flush_write_buffer(struct scsi_tape * STp) result = 0; if (STp->dirty == 1) { - offset = (STp->buffer)->buffer_bytes; - transfer = ((offset + STp->block_size - 1) / - STp->block_size) * STp->block_size; + transfer = STp->buffer->buffer_bytes; DEBC(printk(ST_DEB_MSG "%s: Flushing %d bytes.\n", tape_name(STp), transfer)); - memset((STp->buffer)->b_data + offset, 0, transfer - offset); - memset(cmd, 0, MAX_COMMAND_SIZE); cmd[0] = WRITE_6; cmd[1] = 1; -- cgit v1.2.1 From 885ace9e2f120439043ffa1bb72a2fa1f3afc645 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Fri, 11 Jul 2008 19:50:32 -0500 Subject: [SCSI] fix shared tag map setup Currently qla4xxx and stex pass in their can_queue values into scsi_activate_tcq because they wanted the tag map that large. The problem with this is that it ends up also setting the queue depth to that large value. All we want to do this in this case is set the device queue depth and the other device settings. We do not need to touch the tag map sizing because the drivers had setup that map according to their can_queue limits when the shared map was created. The scsi mid layer in request_fn will then handle the case where we have more requests than available tags when it checks the host queue ready function. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/scsi.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 36c92f961e15..5276e73c58fc 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -902,11 +902,20 @@ void scsi_adjust_queue_depth(struct scsi_device *sdev, int tagged, int tags) spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - /* Check to see if the queue is managed by the block layer. - * If it is, and we fail to adjust the depth, exit. */ - if (blk_queue_tagged(sdev->request_queue) && - blk_queue_resize_tags(sdev->request_queue, tags) != 0) - goto out; + /* + * Check to see if the queue is managed by the block layer. + * If it is, and we fail to adjust the depth, exit. + * + * Do not resize the tag map if it is a host wide share bqt, + * because the size should be the hosts's can_queue. If there + * is more IO than the LLD's can_queue (so there are not enuogh + * tags) request_fn's host queue ready check will handle it. + */ + if (!sdev->host->bqt) { + if (blk_queue_tagged(sdev->request_queue) && + blk_queue_resize_tags(sdev->request_queue, tags) != 0) + goto out; + } sdev->queue_depth = tags; switch (tagged) { -- cgit v1.2.1 From d510d965e17a81d4d41c03a3927f6ef450b73ff5 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Fri, 11 Jul 2008 19:50:33 -0500 Subject: [SCSI] qla4xxx: fix queue depth setting We want to set the queue depth to something reasonable - not the can_queue. Signed-off-by: Mike Christie Cc: David Somayajulu Signed-off-by: James Bottomley --- drivers/scsi/qla4xxx/ql4_os.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 5822dd595826..88bebb13bc52 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -46,6 +46,8 @@ MODULE_PARM_DESC(ql4xextended_error_logging, int ql4_mod_unload = 0; +#define QL4_DEF_QDEPTH 32 + /* * SCSI host template entry points */ @@ -1387,7 +1389,7 @@ static int qla4xxx_slave_alloc(struct scsi_device *sdev) sdev->hostdata = ddb; sdev->tagged_supported = 1; - scsi_activate_tcq(sdev, sdev->host->can_queue); + scsi_activate_tcq(sdev, QL4_DEF_QDEPTH); return 0; } -- cgit v1.2.1 From 5d90027fb579eee41ec1b61f23195ed2fdd51da2 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Fri, 11 Jul 2008 19:50:34 -0500 Subject: [SCSI] stex: fix queue depth setting We want to set the queue depth to something reasonable - not the can_queue. Signed-off-by: Mike Christie Cc: Ed Lin Signed-off-by: James Bottomley --- drivers/scsi/stex.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c index f308a0308829..3790906a77d1 100644 --- a/drivers/scsi/stex.c +++ b/drivers/scsi/stex.c @@ -467,7 +467,7 @@ stex_slave_alloc(struct scsi_device *sdev) /* Cheat: usually extracted from Inquiry data */ sdev->tagged_supported = 1; - scsi_activate_tcq(sdev, sdev->host->can_queue); + scsi_activate_tcq(sdev, ST_CMD_PER_LUN); return 0; } -- cgit v1.2.1 From ecefe8a97577d6c1a68d14ab6fb19bce99448af2 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Fri, 11 Jul 2008 19:50:35 -0500 Subject: [SCSI] fix shared tag map tag allocation When drivers use a shared tag map we can end up with more requests than tags, because the tag map is shost->can_queue tags and there can be sdevs * sdev->queue_depth requests. In scsi_request_fn if tag allocation fails we just drop down to just dequeueing the tag without a tag. The problem is that drivers using the shared tag map rely on a valid tag always being set, because it will use the tag number to lookup commands later. This patch has us check if we got a valid tag when the host lock is held right before we check if the host queue is ready. We do the check here because to allocate the tag we need the q lock, but if the tag is bad we want to add the device/q onto the starved list which requires the host lock. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/scsi_lib.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers') diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 88d1b5f44e59..fe77ccacf319 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1497,6 +1497,21 @@ static void scsi_request_fn(struct request_queue *q) } spin_lock(shost->host_lock); + /* + * We hit this when the driver is using a host wide + * tag map. For device level tag maps the queue_depth check + * in the device ready fn would prevent us from trying + * to allocate a tag. Since the map is a shared host resource + * we add the dev to the starved list so it eventually gets + * a run when a tag is freed. + */ + if (blk_queue_tagged(q) && (req->tag == -1)) { + if (list_empty(&sdev->starved_entry)) + list_add_tail(&sdev->starved_entry, + &shost->starved_list); + goto not_ready; + } + if (!scsi_host_queue_ready(q, shost, sdev)) goto not_ready; if (scsi_target(sdev)->single_lun) { -- cgit v1.2.1 From f27bac2761cab5a2e212dea602d22457a9aa6943 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 14 Jul 2008 14:59:30 +0900 Subject: [SCSI] sd: update index allocation and use ida instead of idr Update index allocation as follows. * sd_index_idr is used only for ID allocation and mapping functionality is not used. Use more memory efficient ida instead. * idr and ida have their own locks inside them and don't need them for operation. Drop it. * index wasn't freed if probing failed after index allocation. fix it. * ida allocation should be repeated if it fails with -EAGAIN. Signed-off-by: Tejun Heo Signed-off-by: James Bottomley --- drivers/scsi/sd.c | 27 ++++++++++++++------------- 1 file changed, 14 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 0c63947d8a9d..99dddcae7851 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -99,8 +99,7 @@ static void scsi_disk_release(struct device *cdev); static void sd_print_sense_hdr(struct scsi_disk *, struct scsi_sense_hdr *); static void sd_print_result(struct scsi_disk *, int); -static DEFINE_IDR(sd_index_idr); -static DEFINE_SPINLOCK(sd_index_lock); +static DEFINE_IDA(sd_index_ida); /* This semaphore is used to mediate the 0->1 reference get in the * face of object destruction (i.e. we can't allow a get on an @@ -1643,18 +1642,20 @@ static int sd_probe(struct device *dev) if (!gd) goto out_free; - if (!idr_pre_get(&sd_index_idr, GFP_KERNEL)) - goto out_put; + do { + if (!ida_pre_get(&sd_index_ida, GFP_KERNEL)) + goto out_put; - spin_lock(&sd_index_lock); - error = idr_get_new(&sd_index_idr, NULL, &index); - spin_unlock(&sd_index_lock); + error = ida_get_new(&sd_index_ida, &index); + } while (error == -EAGAIN); - if (index >= SD_MAX_DISKS) - error = -EBUSY; if (error) goto out_put; + error = -EBUSY; + if (index >= SD_MAX_DISKS) + goto out_free_index; + sdkp->device = sdp; sdkp->driver = &sd_template; sdkp->disk = gd; @@ -1675,7 +1676,7 @@ static int sd_probe(struct device *dev) strncpy(sdkp->dev.bus_id, sdp->sdev_gendev.bus_id, BUS_ID_SIZE); if (device_add(&sdkp->dev)) - goto out_put; + goto out_free_index; get_device(&sdp->sdev_gendev); @@ -1717,6 +1718,8 @@ static int sd_probe(struct device *dev) return 0; + out_free_index: + ida_remove(&sd_index_ida, index); out_put: put_disk(gd); out_free: @@ -1766,9 +1769,7 @@ static void scsi_disk_release(struct device *dev) struct scsi_disk *sdkp = to_scsi_disk(dev); struct gendisk *disk = sdkp->disk; - spin_lock(&sd_index_lock); - idr_remove(&sd_index_idr, sdkp->index); - spin_unlock(&sd_index_lock); + ida_remove(&sd_index_ida, sdkp->index); disk->private_data = NULL; put_disk(disk); -- cgit v1.2.1 From 765cbc6dad16b87724803e359d6be792ddf08614 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Thu, 17 Jul 2008 16:52:51 -0700 Subject: [SCSI] scsi_dh: Implement common device table handling Instead of having each and every driver implement its own device table scanning code we should rather implement a common routine and scan the device tables there. This allows us also to implement a general notifier chain callback for all device handler instead for one per handler. [sekharan: Fix rejections caused by conflicting bug fix] Signed-off-by: Hannes Reinecke Signed-off-by: Chandra Seetharaman Signed-off-by: James Bottomley --- drivers/scsi/device_handler/scsi_dh.c | 202 +++++++++++++++++++++++----- drivers/scsi/device_handler/scsi_dh_emc.c | 109 ++++++--------- drivers/scsi/device_handler/scsi_dh_hp_sw.c | 86 +++++------- drivers/scsi/device_handler/scsi_dh_rdac.c | 109 ++++++--------- 4 files changed, 288 insertions(+), 218 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/device_handler/scsi_dh.c b/drivers/scsi/device_handler/scsi_dh.c index ab6c21cd9689..3f798171ed69 100644 --- a/drivers/scsi/device_handler/scsi_dh.c +++ b/drivers/scsi/device_handler/scsi_dh.c @@ -33,7 +33,7 @@ static struct scsi_device_handler *get_device_handler(const char *name) spin_lock(&list_lock); list_for_each_entry(tmp, &scsi_dh_list, list) { - if (!strcmp(tmp->name, name)) { + if (!strncmp(tmp->name, name, strlen(tmp->name))) { found = tmp; break; } @@ -42,50 +42,172 @@ static struct scsi_device_handler *get_device_handler(const char *name) return found; } -static int scsi_dh_notifier_add(struct device *dev, void *data) +static int device_handler_match(struct scsi_device_handler *tmp, + struct scsi_device *sdev) { - struct scsi_device_handler *scsi_dh = data; + int i; + + for(i = 0; tmp->devlist[i].vendor; i++) { + if (!strncmp(sdev->vendor, tmp->devlist[i].vendor, + strlen(tmp->devlist[i].vendor)) && + !strncmp(sdev->model, tmp->devlist[i].model, + strlen(tmp->devlist[i].model))) { + return 1; + } + } - scsi_dh->nb.notifier_call(&scsi_dh->nb, BUS_NOTIFY_ADD_DEVICE, dev); return 0; } /* - * scsi_register_device_handler - register a device handler personality - * module. - * @scsi_dh - device handler to be registered. + * scsi_dh_handler_attach - Attach a device handler to a device + * @sdev - SCSI device the device handler should attach to + * @scsi_dh - The device handler to attach + */ +static int scsi_dh_handler_attach(struct scsi_device *sdev, + struct scsi_device_handler *scsi_dh) +{ + int err = 0; + + if (sdev->scsi_dh_data) { + if (sdev->scsi_dh_data->scsi_dh != scsi_dh) + err = -EBUSY; + } else if (scsi_dh->attach) + err = scsi_dh->attach(sdev); + + return err; +} + +/* + * scsi_dh_handler_detach - Detach a device handler from a device + * @sdev - SCSI device the device handler should be detached from + * @scsi_dh - Device handler to be detached * - * Returns 0 on success, -EBUSY if handler already registered. + * Detach from a device handler. If a device handler is specified, + * only detach if the currently attached handler is equal to it. */ -int scsi_register_device_handler(struct scsi_device_handler *scsi_dh) +static void scsi_dh_handler_detach(struct scsi_device *sdev, + struct scsi_device_handler *scsi_dh) { - int ret = -EBUSY; - struct scsi_device_handler *tmp; + if (!sdev->scsi_dh_data) + return; - tmp = get_device_handler(scsi_dh->name); - if (tmp) - goto done; + if (scsi_dh && scsi_dh != sdev->scsi_dh_data->scsi_dh) + return; - ret = bus_register_notifier(&scsi_bus_type, &scsi_dh->nb); + if (!scsi_dh) + scsi_dh = sdev->scsi_dh_data->scsi_dh; + + if (scsi_dh && scsi_dh->detach) + scsi_dh->detach(sdev); +} + +/* + * scsi_dh_notifier - notifier chain callback + */ +static int scsi_dh_notifier(struct notifier_block *nb, + unsigned long action, void *data) +{ + struct device *dev = data; + struct scsi_device *sdev; + int err = 0; + struct scsi_device_handler *tmp, *devinfo = NULL; + + if (!scsi_is_sdev_device(dev)) + return 0; + + sdev = to_scsi_device(dev); - bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh, scsi_dh_notifier_add); spin_lock(&list_lock); - list_add(&scsi_dh->list, &scsi_dh_list); + list_for_each_entry(tmp, &scsi_dh_list, list) { + if (device_handler_match(tmp, sdev)) { + devinfo = tmp; + break; + } + } spin_unlock(&list_lock); -done: - return ret; + if (!devinfo) + goto out; + + if (action == BUS_NOTIFY_ADD_DEVICE) { + err = scsi_dh_handler_attach(sdev, devinfo); + } else if (action == BUS_NOTIFY_DEL_DEVICE) { + scsi_dh_handler_detach(sdev, NULL); + } +out: + return err; } -EXPORT_SYMBOL_GPL(scsi_register_device_handler); +/* + * scsi_dh_notifier_add - Callback for scsi_register_device_handler + */ +static int scsi_dh_notifier_add(struct device *dev, void *data) +{ + struct scsi_device_handler *scsi_dh = data; + struct scsi_device *sdev; + + if (!scsi_is_sdev_device(dev)) + return 0; + + if (!get_device(dev)) + return 0; + + sdev = to_scsi_device(dev); + + if (device_handler_match(scsi_dh, sdev)) + scsi_dh_handler_attach(sdev, scsi_dh); + + put_device(dev); + + return 0; +} + +/* + * scsi_dh_notifier_remove - Callback for scsi_unregister_device_handler + */ static int scsi_dh_notifier_remove(struct device *dev, void *data) { struct scsi_device_handler *scsi_dh = data; + struct scsi_device *sdev; + + if (!scsi_is_sdev_device(dev)) + return 0; + + if (!get_device(dev)) + return 0; + + sdev = to_scsi_device(dev); + + scsi_dh_handler_detach(sdev, scsi_dh); + + put_device(dev); - scsi_dh->nb.notifier_call(&scsi_dh->nb, BUS_NOTIFY_DEL_DEVICE, dev); return 0; } +/* + * scsi_register_device_handler - register a device handler personality + * module. + * @scsi_dh - device handler to be registered. + * + * Returns 0 on success, -EBUSY if handler already registered. + */ +int scsi_register_device_handler(struct scsi_device_handler *scsi_dh) +{ + if (get_device_handler(scsi_dh->name)) + return -EBUSY; + + spin_lock(&list_lock); + list_add(&scsi_dh->list, &scsi_dh_list); + spin_unlock(&list_lock); + bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh, scsi_dh_notifier_add); + printk(KERN_INFO "%s: device handler registered\n", scsi_dh->name); + + return SCSI_DH_OK; +} +EXPORT_SYMBOL_GPL(scsi_register_device_handler); + /* * scsi_unregister_device_handler - register a device handler personality * module. @@ -95,23 +217,18 @@ static int scsi_dh_notifier_remove(struct device *dev, void *data) */ int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh) { - int ret = -ENODEV; - struct scsi_device_handler *tmp; - - tmp = get_device_handler(scsi_dh->name); - if (!tmp) - goto done; - - ret = bus_unregister_notifier(&scsi_bus_type, &scsi_dh->nb); + if (!get_device_handler(scsi_dh->name)) + return -ENODEV; bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh, - scsi_dh_notifier_remove); + scsi_dh_notifier_remove); + spin_lock(&list_lock); list_del(&scsi_dh->list); spin_unlock(&list_lock); + printk(KERN_INFO "%s: device handler unregistered\n", scsi_dh->name); -done: - return ret; + return SCSI_DH_OK; } EXPORT_SYMBOL_GPL(scsi_unregister_device_handler); @@ -157,6 +274,27 @@ int scsi_dh_handler_exist(const char *name) } EXPORT_SYMBOL_GPL(scsi_dh_handler_exist); +static struct notifier_block scsi_dh_nb = { + .notifier_call = scsi_dh_notifier +}; + +static int __init scsi_dh_init(void) +{ + int r; + + r = bus_register_notifier(&scsi_bus_type, &scsi_dh_nb); + + return r; +} + +static void __exit scsi_dh_exit(void) +{ + bus_unregister_notifier(&scsi_bus_type, &scsi_dh_nb); +} + +module_init(scsi_dh_init); +module_exit(scsi_dh_exit); + MODULE_DESCRIPTION("SCSI device handler"); MODULE_AUTHOR("Chandra Seetharaman "); MODULE_LICENSE("GPL"); diff --git a/drivers/scsi/device_handler/scsi_dh_emc.c b/drivers/scsi/device_handler/scsi_dh_emc.c index f2467e936e55..bf0a389c52d8 100644 --- a/drivers/scsi/device_handler/scsi_dh_emc.c +++ b/drivers/scsi/device_handler/scsi_dh_emc.c @@ -238,12 +238,12 @@ done: } /* -* Get block request for REQ_BLOCK_PC command issued to path. Currently -* limited to MODE_SELECT (trespass) and INQUIRY (VPD page 0xC0) commands. -* -* Uses data and sense buffers in hardware handler context structure and -* assumes serial servicing of commands, both issuance and completion. -*/ + * Get block request for REQ_BLOCK_PC command issued to path. Currently + * limited to MODE_SELECT (trespass) and INQUIRY (VPD page 0xC0) commands. + * + * Uses data and sense buffers in hardware handler context structure and + * assumes serial servicing of commands, both issuance and completion. + */ static struct request *get_req(struct scsi_device *sdev, int cmd) { struct clariion_dh_data *csdev = get_clariion_data(sdev); @@ -390,21 +390,21 @@ static int clariion_check_sense(struct scsi_device *sdev, return SUCCESS; } -static const struct { - char *vendor; - char *model; -} clariion_dev_list[] = { +const struct scsi_dh_devlist clariion_dev_list[] = { {"DGC", "RAID"}, {"DGC", "DISK"}, {NULL, NULL}, }; -static int clariion_bus_notify(struct notifier_block *, unsigned long, void *); +static int clariion_bus_attach(struct scsi_device *sdev); +static void clariion_bus_detach(struct scsi_device *sdev); static struct scsi_device_handler clariion_dh = { .name = CLARIION_NAME, .module = THIS_MODULE, - .nb.notifier_call = clariion_bus_notify, + .devlist = clariion_dev_list, + .attach = clariion_bus_attach, + .detach = clariion_bus_detach, .check_sense = clariion_check_sense, .activate = clariion_activate, }; @@ -412,73 +412,50 @@ static struct scsi_device_handler clariion_dh = { /* * TODO: need some interface so we can set trespass values */ -static int clariion_bus_notify(struct notifier_block *nb, - unsigned long action, void *data) +static int clariion_bus_attach(struct scsi_device *sdev) { - struct device *dev = data; - struct scsi_device *sdev; struct scsi_dh_data *scsi_dh_data; struct clariion_dh_data *h; - int i, found = 0; unsigned long flags; - if (!scsi_is_sdev_device(dev)) - return 0; - - sdev = to_scsi_device(dev); - - if (action == BUS_NOTIFY_ADD_DEVICE) { - for (i = 0; clariion_dev_list[i].vendor; i++) { - if (!strncmp(sdev->vendor, clariion_dev_list[i].vendor, - strlen(clariion_dev_list[i].vendor)) && - !strncmp(sdev->model, clariion_dev_list[i].model, - strlen(clariion_dev_list[i].model))) { - found = 1; - break; - } - } - if (!found) - goto out; - - scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *) - + sizeof(*h) , GFP_KERNEL); - if (!scsi_dh_data) { - sdev_printk(KERN_ERR, sdev, "Attach failed %s.\n", - CLARIION_NAME); - goto out; - } + scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *) + + sizeof(*h) , GFP_KERNEL); + if (!scsi_dh_data) { + sdev_printk(KERN_ERR, sdev, "Attach failed %s.\n", + CLARIION_NAME); + return -ENOMEM; + } - scsi_dh_data->scsi_dh = &clariion_dh; - h = (struct clariion_dh_data *) scsi_dh_data->buf; - h->default_sp = CLARIION_UNBOUND_LU; - h->current_sp = CLARIION_UNBOUND_LU; + scsi_dh_data->scsi_dh = &clariion_dh; + h = (struct clariion_dh_data *) scsi_dh_data->buf; + h->default_sp = CLARIION_UNBOUND_LU; + h->current_sp = CLARIION_UNBOUND_LU; - spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - sdev->scsi_dh_data = scsi_dh_data; - spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); + spin_lock_irqsave(sdev->request_queue->queue_lock, flags); + sdev->scsi_dh_data = scsi_dh_data; + spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); - sdev_printk(KERN_NOTICE, sdev, "Attached %s.\n", CLARIION_NAME); - try_module_get(THIS_MODULE); + sdev_printk(KERN_NOTICE, sdev, "Attached %s.\n", CLARIION_NAME); + try_module_get(THIS_MODULE); - } else if (action == BUS_NOTIFY_DEL_DEVICE) { - if (sdev->scsi_dh_data == NULL || - sdev->scsi_dh_data->scsi_dh != &clariion_dh) - goto out; + return 0; +} - spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - scsi_dh_data = sdev->scsi_dh_data; - sdev->scsi_dh_data = NULL; - spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); +static void clariion_bus_detach(struct scsi_device *sdev) +{ + struct scsi_dh_data *scsi_dh_data; + unsigned long flags; - sdev_printk(KERN_NOTICE, sdev, "Dettached %s.\n", - CLARIION_NAME); + spin_lock_irqsave(sdev->request_queue->queue_lock, flags); + scsi_dh_data = sdev->scsi_dh_data; + sdev->scsi_dh_data = NULL; + spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); - kfree(scsi_dh_data); - module_put(THIS_MODULE); - } + sdev_printk(KERN_NOTICE, sdev, "Detached %s.\n", + CLARIION_NAME); -out: - return 0; + kfree(scsi_dh_data); + module_put(THIS_MODULE); } static int __init clariion_init(void) diff --git a/drivers/scsi/device_handler/scsi_dh_hp_sw.c b/drivers/scsi/device_handler/scsi_dh_hp_sw.c index ae6be87d6a83..78259bc5dfc9 100644 --- a/drivers/scsi/device_handler/scsi_dh_hp_sw.c +++ b/drivers/scsi/device_handler/scsi_dh_hp_sw.c @@ -108,85 +108,63 @@ done: return ret; } -static const struct { - char *vendor; - char *model; -} hp_sw_dh_data_list[] = { +const struct scsi_dh_devlist hp_sw_dh_data_list[] = { {"COMPAQ", "MSA"}, {"HP", "HSV"}, {"DEC", "HSG80"}, {NULL, NULL}, }; -static int hp_sw_bus_notify(struct notifier_block *, unsigned long, void *); +static int hp_sw_bus_attach(struct scsi_device *sdev); +static void hp_sw_bus_detach(struct scsi_device *sdev); static struct scsi_device_handler hp_sw_dh = { .name = HP_SW_NAME, .module = THIS_MODULE, - .nb.notifier_call = hp_sw_bus_notify, + .devlist = hp_sw_dh_data_list, + .attach = hp_sw_bus_attach, + .detach = hp_sw_bus_detach, .activate = hp_sw_activate, }; -static int hp_sw_bus_notify(struct notifier_block *nb, - unsigned long action, void *data) +static int hp_sw_bus_attach(struct scsi_device *sdev) { - struct device *dev = data; - struct scsi_device *sdev; struct scsi_dh_data *scsi_dh_data; - int i, found = 0; unsigned long flags; - if (!scsi_is_sdev_device(dev)) + scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *) + + sizeof(struct hp_sw_dh_data) , GFP_KERNEL); + if (!scsi_dh_data) { + sdev_printk(KERN_ERR, sdev, "Attach Failed %s.\n", + HP_SW_NAME); return 0; + } - sdev = to_scsi_device(dev); - - if (action == BUS_NOTIFY_ADD_DEVICE) { - for (i = 0; hp_sw_dh_data_list[i].vendor; i++) { - if (!strncmp(sdev->vendor, hp_sw_dh_data_list[i].vendor, - strlen(hp_sw_dh_data_list[i].vendor)) && - !strncmp(sdev->model, hp_sw_dh_data_list[i].model, - strlen(hp_sw_dh_data_list[i].model))) { - found = 1; - break; - } - } - if (!found) - goto out; - - scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *) - + sizeof(struct hp_sw_dh_data) , GFP_KERNEL); - if (!scsi_dh_data) { - sdev_printk(KERN_ERR, sdev, "Attach Failed %s.\n", - HP_SW_NAME); - goto out; - } + scsi_dh_data->scsi_dh = &hp_sw_dh; + spin_lock_irqsave(sdev->request_queue->queue_lock, flags); + sdev->scsi_dh_data = scsi_dh_data; + spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); + try_module_get(THIS_MODULE); - scsi_dh_data->scsi_dh = &hp_sw_dh; - spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - sdev->scsi_dh_data = scsi_dh_data; - spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); - try_module_get(THIS_MODULE); + sdev_printk(KERN_NOTICE, sdev, "Attached %s.\n", HP_SW_NAME); - sdev_printk(KERN_NOTICE, sdev, "Attached %s.\n", HP_SW_NAME); - } else if (action == BUS_NOTIFY_DEL_DEVICE) { - if (sdev->scsi_dh_data == NULL || - sdev->scsi_dh_data->scsi_dh != &hp_sw_dh) - goto out; + return 0; +} - spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - scsi_dh_data = sdev->scsi_dh_data; - sdev->scsi_dh_data = NULL; - spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); - module_put(THIS_MODULE); +static void hp_sw_bus_detach( struct scsi_device *sdev ) +{ + struct scsi_dh_data *scsi_dh_data; + unsigned long flags; - sdev_printk(KERN_NOTICE, sdev, "Dettached %s.\n", HP_SW_NAME); + spin_lock_irqsave(sdev->request_queue->queue_lock, flags); + scsi_dh_data = sdev->scsi_dh_data; + sdev->scsi_dh_data = NULL; + spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); + module_put(THIS_MODULE); - kfree(scsi_dh_data); - } + sdev_printk(KERN_NOTICE, sdev, "Detached %s\n", HP_SW_NAME); -out: - return 0; + kfree(scsi_dh_data); } static int __init hp_sw_init(void) diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c index fdf34b0ec6e1..0e25a6e9c82d 100644 --- a/drivers/scsi/device_handler/scsi_dh_rdac.c +++ b/drivers/scsi/device_handler/scsi_dh_rdac.c @@ -569,10 +569,7 @@ static int rdac_check_sense(struct scsi_device *sdev, return SCSI_RETURN_NOT_HANDLED; } -static const struct { - char *vendor; - char *model; -} rdac_dev_list[] = { +const struct scsi_dh_devlist rdac_dev_list[] = { {"IBM", "1722"}, {"IBM", "1724"}, {"IBM", "1726"}, @@ -590,89 +587,69 @@ static const struct { {NULL, NULL}, }; -static int rdac_bus_notify(struct notifier_block *, unsigned long, void *); +static int rdac_bus_attach(struct scsi_device *sdev); +static void rdac_bus_detach(struct scsi_device *sdev); static struct scsi_device_handler rdac_dh = { .name = RDAC_NAME, .module = THIS_MODULE, - .nb.notifier_call = rdac_bus_notify, + .devlist = rdac_dev_list, .prep_fn = rdac_prep_fn, .check_sense = rdac_check_sense, + .attach = rdac_bus_attach, + .detach = rdac_bus_detach, .activate = rdac_activate, }; -/* - * TODO: need some interface so we can set trespass values - */ -static int rdac_bus_notify(struct notifier_block *nb, - unsigned long action, void *data) +static int rdac_bus_attach(struct scsi_device *sdev) { - struct device *dev = data; - struct scsi_device *sdev; struct scsi_dh_data *scsi_dh_data; struct rdac_dh_data *h; - int i, found = 0; unsigned long flags; - if (!scsi_is_sdev_device(dev)) + scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *) + + sizeof(*h) , GFP_KERNEL); + if (!scsi_dh_data) { + sdev_printk(KERN_ERR, sdev, "Attach failed %s.\n", + RDAC_NAME); return 0; + } - sdev = to_scsi_device(dev); - - if (action == BUS_NOTIFY_ADD_DEVICE) { - for (i = 0; rdac_dev_list[i].vendor; i++) { - if (!strncmp(sdev->vendor, rdac_dev_list[i].vendor, - strlen(rdac_dev_list[i].vendor)) && - !strncmp(sdev->model, rdac_dev_list[i].model, - strlen(rdac_dev_list[i].model))) { - found = 1; - break; - } - } - if (!found) - goto out; - - scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *) - + sizeof(*h) , GFP_KERNEL); - if (!scsi_dh_data) { - sdev_printk(KERN_ERR, sdev, "Attach failed %s.\n", - RDAC_NAME); - goto out; - } + scsi_dh_data->scsi_dh = &rdac_dh; + h = (struct rdac_dh_data *) scsi_dh_data->buf; + h->lun = UNINITIALIZED_LUN; + h->state = RDAC_STATE_ACTIVE; + spin_lock_irqsave(sdev->request_queue->queue_lock, flags); + sdev->scsi_dh_data = scsi_dh_data; + spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); + try_module_get(THIS_MODULE); - scsi_dh_data->scsi_dh = &rdac_dh; - h = (struct rdac_dh_data *) scsi_dh_data->buf; - h->lun = UNINITIALIZED_LUN; - h->state = RDAC_STATE_ACTIVE; - spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - sdev->scsi_dh_data = scsi_dh_data; - spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); - try_module_get(THIS_MODULE); - - sdev_printk(KERN_NOTICE, sdev, "Attached %s.\n", RDAC_NAME); - - } else if (action == BUS_NOTIFY_DEL_DEVICE) { - if (sdev->scsi_dh_data == NULL || - sdev->scsi_dh_data->scsi_dh != &rdac_dh) - goto out; - - spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - scsi_dh_data = sdev->scsi_dh_data; - sdev->scsi_dh_data = NULL; - spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); - - h = (struct rdac_dh_data *) scsi_dh_data->buf; - if (h->ctlr) - kref_put(&h->ctlr->kref, release_controller); - kfree(scsi_dh_data); - module_put(THIS_MODULE); - sdev_printk(KERN_NOTICE, sdev, "Dettached %s.\n", RDAC_NAME); - } + sdev_printk(KERN_NOTICE, sdev, "Attached %s\n", RDAC_NAME); -out: return 0; } +static void rdac_bus_detach( struct scsi_device *sdev ) +{ + struct scsi_dh_data *scsi_dh_data; + struct rdac_dh_data *h; + unsigned long flags; + + spin_lock_irqsave(sdev->request_queue->queue_lock, flags); + scsi_dh_data = sdev->scsi_dh_data; + sdev->scsi_dh_data = NULL; + spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); + + h = (struct rdac_dh_data *) scsi_dh_data->buf; + if (h->ctlr) + kref_put(&h->ctlr->kref, release_controller); + kfree(scsi_dh_data); + module_put(THIS_MODULE); + sdev_printk(KERN_NOTICE, sdev, "Detached %s\n", RDAC_NAME); +} + + + static int __init rdac_init(void) { int r; -- cgit v1.2.1 From 4c05ae52fcb0e27a2ee4a16d1f31f8c547fd4886 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Thu, 17 Jul 2008 16:52:57 -0700 Subject: [SCSI] scsi_dh: Add 'dh_state' sysfs attribute Implement a 'dh_state' sdev attribute for dynamic device handler manipulation. A read on the attribute will return the name of the currently attached device handler or 'detached' if no handler is attached. The attribute allows the following strings to be written: - The name of the device handler to be attached if the state is 'detached'. - 'activate' to trigger path activation if a device handler is attached. - 'detach' to detach the currently attached device handler. Signed-off-by: Hannes Reinecke Signed-off-by: Chandra Seetharaman Signed-off-by: James Bottomley --- drivers/scsi/device_handler/scsi_dh.c | 103 +++++++++++++++++++++++++++++++++- 1 file changed, 102 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/device_handler/scsi_dh.c b/drivers/scsi/device_handler/scsi_dh.c index 3f798171ed69..e90df9dd3e65 100644 --- a/drivers/scsi/device_handler/scsi_dh.c +++ b/drivers/scsi/device_handler/scsi_dh.c @@ -84,7 +84,7 @@ static int scsi_dh_handler_attach(struct scsi_device *sdev, * @scsi_dh - Device handler to be detached * * Detach from a device handler. If a device handler is specified, - * only detach if the currently attached handler is equal to it. + * only detach if the currently attached handler matches @scsi_dh. */ static void scsi_dh_handler_detach(struct scsi_device *sdev, struct scsi_device_handler *scsi_dh) @@ -102,6 +102,98 @@ static void scsi_dh_handler_detach(struct scsi_device *sdev, scsi_dh->detach(sdev); } +/* + * Functions for sysfs attribute 'dh_state' + */ +static ssize_t +store_dh_state(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct scsi_device_handler *scsi_dh; + int err = -EINVAL; + + if (!sdev->scsi_dh_data) { + /* + * Attach to a device handler + */ + if (!(scsi_dh = get_device_handler(buf))) + return err; + err = scsi_dh_handler_attach(sdev, scsi_dh); + } else { + scsi_dh = sdev->scsi_dh_data->scsi_dh; + if (!strncmp(buf, "detach", 6)) { + /* + * Detach from a device handler + */ + scsi_dh_handler_detach(sdev, scsi_dh); + err = 0; + } else if (!strncmp(buf, "activate", 8)) { + /* + * Activate a device handler + */ + if (scsi_dh->activate) + err = scsi_dh->activate(sdev); + else + err = 0; + } + } + + return err<0?err:count; +} + +static ssize_t +show_dh_state(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct scsi_device *sdev = to_scsi_device(dev); + + if (!sdev->scsi_dh_data) + return snprintf(buf, 20, "detached\n"); + + return snprintf(buf, 20, "%s\n", sdev->scsi_dh_data->scsi_dh->name); +} + +static struct device_attribute scsi_dh_state_attr = + __ATTR(dh_state, S_IRUGO | S_IWUSR, show_dh_state, + store_dh_state); + +/* + * scsi_dh_sysfs_attr_add - Callback for scsi_init_dh + */ +static int scsi_dh_sysfs_attr_add(struct device *dev, void *data) +{ + struct scsi_device *sdev; + int err; + + if (!scsi_is_sdev_device(dev)) + return 0; + + sdev = to_scsi_device(dev); + + err = device_create_file(&sdev->sdev_gendev, + &scsi_dh_state_attr); + + return 0; +} + +/* + * scsi_dh_sysfs_attr_remove - Callback for scsi_exit_dh + */ +static int scsi_dh_sysfs_attr_remove(struct device *dev, void *data) +{ + struct scsi_device *sdev; + + if (!scsi_is_sdev_device(dev)) + return 0; + + sdev = to_scsi_device(dev); + + device_remove_file(&sdev->sdev_gendev, + &scsi_dh_state_attr); + + return 0; +} + /* * scsi_dh_notifier - notifier chain callback */ @@ -132,7 +224,10 @@ static int scsi_dh_notifier(struct notifier_block *nb, if (action == BUS_NOTIFY_ADD_DEVICE) { err = scsi_dh_handler_attach(sdev, devinfo); + if (!err) + err = device_create_file(dev, &scsi_dh_state_attr); } else if (action == BUS_NOTIFY_DEL_DEVICE) { + device_remove_file(dev, &scsi_dh_state_attr); scsi_dh_handler_detach(sdev, NULL); } out: @@ -284,11 +379,17 @@ static int __init scsi_dh_init(void) r = bus_register_notifier(&scsi_bus_type, &scsi_dh_nb); + if (!r) + bus_for_each_dev(&scsi_bus_type, NULL, NULL, + scsi_dh_sysfs_attr_add); + return r; } static void __exit scsi_dh_exit(void) { + bus_for_each_dev(&scsi_bus_type, NULL, NULL, + scsi_dh_sysfs_attr_remove); bus_unregister_notifier(&scsi_bus_type, &scsi_dh_nb); } -- cgit v1.2.1 From b6ff1b14cdf4b4cb5403f3af2c3272f7e609a241 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Thu, 17 Jul 2008 16:53:03 -0700 Subject: [SCSI] scsi_dh: Update EMC handler This patch converts the EMC device handler to use a proper state machine. We now also parse the extended INQUIRY information to determine if long trespass commands are supported. And we're now using the long trespass command correctly. And finally there's now an check at init time to refuse to attach to devices not supporting EMC-specific VPD pages. Signed-off-by: Hannes Reinecke Signed-off-by: Chandra Seetharaman Signed-off-by: James Bottomley --- drivers/scsi/device_handler/scsi_dh_emc.c | 547 ++++++++++++++++++++---------- 1 file changed, 372 insertions(+), 175 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/device_handler/scsi_dh_emc.c b/drivers/scsi/device_handler/scsi_dh_emc.c index bf0a389c52d8..aa46b131b20e 100644 --- a/drivers/scsi/device_handler/scsi_dh_emc.c +++ b/drivers/scsi/device_handler/scsi_dh_emc.c @@ -25,28 +25,31 @@ #include #include -#define CLARIION_NAME "emc_clariion" +#define CLARIION_NAME "emc" #define CLARIION_TRESPASS_PAGE 0x22 -#define CLARIION_BUFFER_SIZE 0x80 +#define CLARIION_BUFFER_SIZE 0xFC #define CLARIION_TIMEOUT (60 * HZ) #define CLARIION_RETRIES 3 #define CLARIION_UNBOUND_LU -1 +#define CLARIION_SP_A 0 +#define CLARIION_SP_B 1 -static unsigned char long_trespass[] = { - 0, 0, 0, 0, - CLARIION_TRESPASS_PAGE, /* Page code */ - 0x09, /* Page length - 2 */ - 0x81, /* Trespass code + Honor reservation bit */ - 0xff, 0xff, /* Trespass target */ - 0, 0, 0, 0, 0, 0 /* Reserved bytes / unknown */ -}; +/* Flags */ +#define CLARIION_SHORT_TRESPASS 1 +#define CLARIION_HONOR_RESERVATIONS 2 -static unsigned char long_trespass_hr[] = { - 0, 0, 0, 0, +/* LUN states */ +#define CLARIION_LUN_UNINITIALIZED -1 +#define CLARIION_LUN_UNBOUND 0 +#define CLARIION_LUN_BOUND 1 +#define CLARIION_LUN_OWNED 2 + +static unsigned char long_trespass[] = { + 0, 0, 0, 0, 0, 0, 0, 0, CLARIION_TRESPASS_PAGE, /* Page code */ 0x09, /* Page length - 2 */ - 0x01, /* Trespass code + Honor reservation bit */ + 0x01, /* Trespass code */ 0xff, 0xff, /* Trespass target */ 0, 0, 0, 0, 0, 0 /* Reserved bytes / unknown */ }; @@ -55,39 +58,56 @@ static unsigned char short_trespass[] = { 0, 0, 0, 0, CLARIION_TRESPASS_PAGE, /* Page code */ 0x02, /* Page length - 2 */ - 0x81, /* Trespass code + Honor reservation bit */ + 0x01, /* Trespass code */ 0xff, /* Trespass target */ }; -static unsigned char short_trespass_hr[] = { - 0, 0, 0, 0, - CLARIION_TRESPASS_PAGE, /* Page code */ - 0x02, /* Page length - 2 */ - 0x01, /* Trespass code + Honor reservation bit */ - 0xff, /* Trespass target */ +static const char * lun_state[] = +{ + "not bound", + "bound", + "owned", }; struct clariion_dh_data { /* + * Flags: + * CLARIION_SHORT_TRESPASS * Use short trespass command (FC-series) or the long version * (default for AX/CX CLARiiON arrays). - */ - unsigned short_trespass; - /* + * + * CLARIION_HONOR_RESERVATIONS * Whether or not (default) to honor SCSI reservations when * initiating a switch-over. */ - unsigned hr; - /* I/O buffer for both MODE_SELECT and INQUIRY commands. */ + unsigned flags; + /* + * I/O buffer for both MODE_SELECT and INQUIRY commands. + */ char buffer[CLARIION_BUFFER_SIZE]; /* * SCSI sense buffer for commands -- assumes serial issuance * and completion sequence of all commands for same multipath. */ unsigned char sense[SCSI_SENSE_BUFFERSIZE]; - /* which SP (A=0,B=1,UNBOUND=-1) is dflt SP for path's mapped dev */ + unsigned int senselen; + /* + * LUN state + */ + int lun_state; + /* + * SP Port number + */ + int port; + /* + * which SP (A=0,B=1,UNBOUND=-1) is the default SP for this + * path's mapped LUN + */ int default_sp; - /* which SP (A=0,B=1,UNBOUND=-1) is active for path's mapped dev */ + /* + * which SP (A=0,B=1,UNBOUND=-1) is the active SP for this + * path's mapped LUN + */ int current_sp; }; @@ -102,19 +122,16 @@ static inline struct clariion_dh_data /* * Parse MODE_SELECT cmd reply. */ -static int trespass_endio(struct scsi_device *sdev, int result) +static int trespass_endio(struct scsi_device *sdev, char *sense) { - int err = SCSI_DH_OK; + int err = SCSI_DH_IO; struct scsi_sense_hdr sshdr; - struct clariion_dh_data *csdev = get_clariion_data(sdev); - char *sense = csdev->sense; - if (status_byte(result) == CHECK_CONDITION && - scsi_normalize_sense(sense, SCSI_SENSE_BUFFERSIZE, &sshdr)) { - sdev_printk(KERN_ERR, sdev, "Found valid sense data 0x%2x, " + if (!scsi_normalize_sense(sense, SCSI_SENSE_BUFFERSIZE, &sshdr)) { + sdev_printk(KERN_ERR, sdev, "%s: Found valid sense data 0x%2x, " "0x%2x, 0x%2x while sending CLARiiON trespass " - "command.\n", sshdr.sense_key, sshdr.asc, - sshdr.ascq); + "command.\n", CLARIION_NAME, sshdr.sense_key, + sshdr.asc, sshdr.ascq); if ((sshdr.sense_key == 0x05) && (sshdr.asc == 0x04) && (sshdr.ascq == 0x00)) { @@ -122,9 +139,9 @@ static int trespass_endio(struct scsi_device *sdev, int result) * Array based copy in progress -- do not send * mode_select or copy will be aborted mid-stream. */ - sdev_printk(KERN_INFO, sdev, "Array Based Copy in " + sdev_printk(KERN_INFO, sdev, "%s: Array Based Copy in " "progress while sending CLARiiON trespass " - "command.\n"); + "command.\n", CLARIION_NAME); err = SCSI_DH_DEV_TEMP_BUSY; } else if ((sshdr.sense_key == 0x02) && (sshdr.asc == 0x04) && (sshdr.ascq == 0x03)) { @@ -132,109 +149,113 @@ static int trespass_endio(struct scsi_device *sdev, int result) * LUN Not Ready - Manual Intervention Required * indicates in-progress ucode upgrade (NDU). */ - sdev_printk(KERN_INFO, sdev, "Detected in-progress " + sdev_printk(KERN_INFO, sdev, "%s: Detected in-progress " "ucode upgrade NDU operation while sending " - "CLARiiON trespass command.\n"); + "CLARiiON trespass command.\n", CLARIION_NAME); err = SCSI_DH_DEV_TEMP_BUSY; } else err = SCSI_DH_DEV_FAILED; - } else if (result) { - sdev_printk(KERN_ERR, sdev, "Error 0x%x while sending " - "CLARiiON trespass command.\n", result); - err = SCSI_DH_IO; + } else { + sdev_printk(KERN_INFO, sdev, + "%s: failed to send MODE SELECT, no sense available\n", + CLARIION_NAME); } - return err; } -static int parse_sp_info_reply(struct scsi_device *sdev, int result, - int *default_sp, int *current_sp, int *new_current_sp) +static int parse_sp_info_reply(struct scsi_device *sdev, + struct clariion_dh_data *csdev) { int err = SCSI_DH_OK; - struct clariion_dh_data *csdev = get_clariion_data(sdev); - - if (result == 0) { - /* check for in-progress ucode upgrade (NDU) */ - if (csdev->buffer[48] != 0) { - sdev_printk(KERN_NOTICE, sdev, "Detected in-progress " - "ucode upgrade NDU operation while finding " - "current active SP."); - err = SCSI_DH_DEV_TEMP_BUSY; - } else { - *default_sp = csdev->buffer[5]; - - if (csdev->buffer[4] == 2) - /* SP for path is current */ - *current_sp = csdev->buffer[8]; - else { - if (csdev->buffer[4] == 1) - /* SP for this path is NOT current */ - if (csdev->buffer[8] == 0) - *current_sp = 1; - else - *current_sp = 0; - else - /* unbound LU or LUNZ */ - *current_sp = CLARIION_UNBOUND_LU; - } - *new_current_sp = csdev->buffer[8]; - } - } else { - struct scsi_sense_hdr sshdr; - err = SCSI_DH_IO; - - if (scsi_normalize_sense(csdev->sense, SCSI_SENSE_BUFFERSIZE, - &sshdr)) - sdev_printk(KERN_ERR, sdev, "Found valid sense data " - "0x%2x, 0x%2x, 0x%2x while finding current " - "active SP.", sshdr.sense_key, sshdr.asc, - sshdr.ascq); - else - sdev_printk(KERN_ERR, sdev, "Error 0x%x finding " - "current active SP.", result); + /* check for in-progress ucode upgrade (NDU) */ + if (csdev->buffer[48] != 0) { + sdev_printk(KERN_NOTICE, sdev, "%s: Detected in-progress " + "ucode upgrade NDU operation while finding " + "current active SP.", CLARIION_NAME); + err = SCSI_DH_DEV_TEMP_BUSY; + goto out; + } + if (csdev->buffer[4] < 0 || csdev->buffer[4] > 2) { + /* Invalid buffer format */ + sdev_printk(KERN_NOTICE, sdev, + "%s: invalid VPD page 0xC0 format\n", + CLARIION_NAME); + err = SCSI_DH_NOSYS; + goto out; + } + switch (csdev->buffer[28] & 0x0f) { + case 6: + sdev_printk(KERN_NOTICE, sdev, + "%s: ALUA failover mode detected\n", + CLARIION_NAME); + break; + case 4: + /* Linux failover */ + break; + default: + sdev_printk(KERN_WARNING, sdev, + "%s: Invalid failover mode %d\n", + CLARIION_NAME, csdev->buffer[28] & 0x0f); + err = SCSI_DH_NOSYS; + goto out; } + csdev->default_sp = csdev->buffer[5]; + csdev->lun_state = csdev->buffer[4]; + csdev->current_sp = csdev->buffer[8]; + csdev->port = csdev->buffer[7]; + +out: return err; } -static int sp_info_endio(struct scsi_device *sdev, int result, - int mode_select_sent, int *done) +#define emc_default_str "FC (Legacy)" + +static char * parse_sp_model(struct scsi_device *sdev, unsigned char *buffer) { - struct clariion_dh_data *csdev = get_clariion_data(sdev); - int err_flags, default_sp, current_sp, new_current_sp; + unsigned char len = buffer[4] + 5; + char *sp_model = NULL; + unsigned char sp_len, serial_len; + + if (len < 160) { + sdev_printk(KERN_WARNING, sdev, + "%s: Invalid information section length %d\n", + CLARIION_NAME, len); + /* Check for old FC arrays */ + if (!strncmp(buffer + 8, "DGC", 3)) { + /* Old FC array, not supporting extended information */ + sp_model = emc_default_str; + } + goto out; + } - err_flags = parse_sp_info_reply(sdev, result, &default_sp, - ¤t_sp, &new_current_sp); + /* + * Parse extended information for SP model number + */ + serial_len = buffer[160]; + if (serial_len == 0 || serial_len + 161 > len) { + sdev_printk(KERN_WARNING, sdev, + "%s: Invalid array serial number length %d\n", + CLARIION_NAME, serial_len); + goto out; + } + sp_len = buffer[99]; + if (sp_len == 0 || serial_len + sp_len + 161 > len) { + sdev_printk(KERN_WARNING, sdev, + "%s: Invalid model number length %d\n", + CLARIION_NAME, sp_len); + goto out; + } + sp_model = &buffer[serial_len + 161]; + /* Strip whitespace at the end */ + while (sp_len > 1 && sp_model[sp_len - 1] == ' ') + sp_len--; - if (err_flags != SCSI_DH_OK) - goto done; + sp_model[sp_len] = '\0'; - if (mode_select_sent) { - csdev->default_sp = default_sp; - csdev->current_sp = current_sp; - } else { - /* - * Issue the actual module_selec request IFF either - * (1) we do not know the identity of the current SP OR - * (2) what we think we know is actually correct. - */ - if ((current_sp != CLARIION_UNBOUND_LU) && - (new_current_sp != current_sp)) { - - csdev->default_sp = default_sp; - csdev->current_sp = current_sp; - - sdev_printk(KERN_INFO, sdev, "Ignoring path group " - "switch-over command for CLARiiON SP%s since " - " mapped device is already initialized.", - current_sp ? "B" : "A"); - if (done) - *done = 1; /* as good as doing it */ - } - } -done: - return err_flags; +out: + return sp_model; } /* @@ -244,48 +265,37 @@ done: * Uses data and sense buffers in hardware handler context structure and * assumes serial servicing of commands, both issuance and completion. */ -static struct request *get_req(struct scsi_device *sdev, int cmd) +static struct request *get_req(struct scsi_device *sdev, int cmd, + unsigned char *buffer) { - struct clariion_dh_data *csdev = get_clariion_data(sdev); struct request *rq; - unsigned char *page22; int len = 0; rq = blk_get_request(sdev->request_queue, - (cmd == MODE_SELECT) ? WRITE : READ, GFP_ATOMIC); + (cmd == MODE_SELECT) ? WRITE : READ, GFP_NOIO); if (!rq) { sdev_printk(KERN_INFO, sdev, "get_req: blk_get_request failed"); return NULL; } - memset(&rq->cmd, 0, BLK_MAX_CDB); + memset(rq->cmd, 0, BLK_MAX_CDB); + rq->cmd_len = COMMAND_SIZE(cmd); rq->cmd[0] = cmd; - rq->cmd_len = COMMAND_SIZE(rq->cmd[0]); switch (cmd) { case MODE_SELECT: - if (csdev->short_trespass) { - page22 = csdev->hr ? short_trespass_hr : short_trespass; - len = sizeof(short_trespass); - } else { - page22 = csdev->hr ? long_trespass_hr : long_trespass; - len = sizeof(long_trespass); - } - /* - * Can't DMA from kernel BSS -- must copy selected trespass - * command mode page contents to context buffer which is - * allocated by kmalloc. - */ - BUG_ON((len > CLARIION_BUFFER_SIZE)); - memcpy(csdev->buffer, page22, len); + len = sizeof(short_trespass); + rq->cmd_flags |= REQ_RW; + rq->cmd[1] = 0x10; + break; + case MODE_SELECT_10: + len = sizeof(long_trespass); rq->cmd_flags |= REQ_RW; rq->cmd[1] = 0x10; break; case INQUIRY: - rq->cmd[1] = 0x1; - rq->cmd[2] = 0xC0; len = CLARIION_BUFFER_SIZE; - memset(csdev->buffer, 0, CLARIION_BUFFER_SIZE); + memset(buffer, 0, len); break; default: BUG_ON(1); @@ -298,47 +308,94 @@ static struct request *get_req(struct scsi_device *sdev, int cmd) rq->timeout = CLARIION_TIMEOUT; rq->retries = CLARIION_RETRIES; - rq->sense = csdev->sense; - memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE); - rq->sense_len = 0; - - if (blk_rq_map_kern(sdev->request_queue, rq, csdev->buffer, - len, GFP_ATOMIC)) { - __blk_put_request(rq->q, rq); + if (blk_rq_map_kern(rq->q, rq, buffer, len, GFP_NOIO)) { + blk_put_request(rq); return NULL; } return rq; } -static int send_cmd(struct scsi_device *sdev, int cmd) +static int send_inquiry_cmd(struct scsi_device *sdev, int page, + struct clariion_dh_data *csdev) { - struct request *rq = get_req(sdev, cmd); + struct request *rq = get_req(sdev, INQUIRY, csdev->buffer); + int err; if (!rq) return SCSI_DH_RES_TEMP_UNAVAIL; - return blk_execute_rq(sdev->request_queue, NULL, rq, 1); + rq->sense = csdev->sense; + memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE); + rq->sense_len = csdev->senselen = 0; + + rq->cmd[0] = INQUIRY; + if (page != 0) { + rq->cmd[1] = 1; + rq->cmd[2] = page; + } + err = blk_execute_rq(sdev->request_queue, NULL, rq, 1); + if (err == -EIO) { + sdev_printk(KERN_INFO, sdev, + "%s: failed to send %s INQUIRY: %x\n", + CLARIION_NAME, page?"EVPD":"standard", + rq->errors); + csdev->senselen = rq->sense_len; + err = SCSI_DH_IO; + } + + blk_put_request(rq); + + return err; } -static int clariion_activate(struct scsi_device *sdev) +static int send_trespass_cmd(struct scsi_device *sdev, + struct clariion_dh_data *csdev) { - int result, done = 0; + struct request *rq; + unsigned char *page22; + int err, len, cmd; + + if (csdev->flags & CLARIION_SHORT_TRESPASS) { + page22 = short_trespass; + if (!(csdev->flags & CLARIION_HONOR_RESERVATIONS)) + /* Set Honor Reservations bit */ + page22[6] |= 0x80; + len = sizeof(short_trespass); + cmd = MODE_SELECT; + } else { + page22 = long_trespass; + if (!(csdev->flags & CLARIION_HONOR_RESERVATIONS)) + /* Set Honor Reservations bit */ + page22[10] |= 0x80; + len = sizeof(long_trespass); + cmd = MODE_SELECT_10; + } + BUG_ON((len > CLARIION_BUFFER_SIZE)); + memcpy(csdev->buffer, page22, len); - result = send_cmd(sdev, INQUIRY); - result = sp_info_endio(sdev, result, 0, &done); - if (result || done) - goto done; + rq = get_req(sdev, cmd, csdev->buffer); + if (!rq) + return SCSI_DH_RES_TEMP_UNAVAIL; - result = send_cmd(sdev, MODE_SELECT); - result = trespass_endio(sdev, result); - if (result) - goto done; + rq->sense = csdev->sense; + memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE); + rq->sense_len = csdev->senselen = 0; - result = send_cmd(sdev, INQUIRY); - result = sp_info_endio(sdev, result, 1, NULL); -done: - return result; + err = blk_execute_rq(sdev->request_queue, NULL, rq, 1); + if (err == -EIO) { + if (rq->sense_len) { + err = trespass_endio(sdev, csdev->sense); + } else { + sdev_printk(KERN_INFO, sdev, + "%s: failed to send MODE SELECT: %x\n", + CLARIION_NAME, rq->errors); + } + } + + blk_put_request(rq); + + return err; } static int clariion_check_sense(struct scsi_device *sdev, @@ -386,13 +443,129 @@ static int clariion_check_sense(struct scsi_device *sdev, break; } - /* success just means we do not care what scsi-ml does */ - return SUCCESS; + return SCSI_RETURN_NOT_HANDLED; +} + +static int clariion_prep_fn(struct scsi_device *sdev, struct request *req) +{ + struct clariion_dh_data *h = get_clariion_data(sdev); + int ret = BLKPREP_OK; + + if (h->lun_state != CLARIION_LUN_OWNED) { + ret = BLKPREP_KILL; + req->cmd_flags |= REQ_QUIET; + } + return ret; + +} + +static int clariion_std_inquiry(struct scsi_device *sdev, + struct clariion_dh_data *csdev) +{ + int err; + char *sp_model; + + err = send_inquiry_cmd(sdev, 0, csdev); + if (err != SCSI_DH_OK && csdev->senselen) { + struct scsi_sense_hdr sshdr; + + if (scsi_normalize_sense(csdev->sense, SCSI_SENSE_BUFFERSIZE, + &sshdr)) { + sdev_printk(KERN_ERR, sdev, "%s: INQUIRY sense code " + "%02x/%02x/%02x\n", CLARIION_NAME, + sshdr.sense_key, sshdr.asc, sshdr.ascq); + } + err = SCSI_DH_IO; + goto out; + } + + sp_model = parse_sp_model(sdev, csdev->buffer); + if (!sp_model) { + err = SCSI_DH_DEV_UNSUPP; + goto out; + } + + /* + * FC Series arrays do not support long trespass + */ + if (!strlen(sp_model) || !strncmp(sp_model, "FC",2)) + csdev->flags |= CLARIION_SHORT_TRESPASS; + + sdev_printk(KERN_INFO, sdev, + "%s: detected Clariion %s, flags %x\n", + CLARIION_NAME, sp_model, csdev->flags); +out: + return err; +} + +static int clariion_send_inquiry(struct scsi_device *sdev, + struct clariion_dh_data *csdev) +{ + int err, retry = CLARIION_RETRIES; + +retry: + err = send_inquiry_cmd(sdev, 0xC0, csdev); + if (err != SCSI_DH_OK && csdev->senselen) { + struct scsi_sense_hdr sshdr; + + err = scsi_normalize_sense(csdev->sense, SCSI_SENSE_BUFFERSIZE, + &sshdr); + if (!err) + return SCSI_DH_IO; + + err = clariion_check_sense(sdev, &sshdr); + if (retry > 0 && err == NEEDS_RETRY) { + retry--; + goto retry; + } + sdev_printk(KERN_ERR, sdev, "%s: INQUIRY sense code " + "%02x/%02x/%02x\n", CLARIION_NAME, + sshdr.sense_key, sshdr.asc, sshdr.ascq); + err = SCSI_DH_IO; + } else { + err = parse_sp_info_reply(sdev, csdev); + } + return err; +} + +static int clariion_activate(struct scsi_device *sdev) +{ + struct clariion_dh_data *csdev = get_clariion_data(sdev); + int result; + + result = clariion_send_inquiry(sdev, csdev); + if (result != SCSI_DH_OK) + goto done; + + if (csdev->lun_state == CLARIION_LUN_OWNED) + goto done; + + result = send_trespass_cmd(sdev, csdev); + if (result != SCSI_DH_OK) + goto done; + sdev_printk(KERN_INFO, sdev,"%s: %s trespass command sent\n", + CLARIION_NAME, + csdev->flags&CLARIION_SHORT_TRESPASS?"short":"long" ); + + /* Update status */ + result = clariion_send_inquiry(sdev, csdev); + if (result != SCSI_DH_OK) + goto done; + +done: + sdev_printk(KERN_INFO, sdev, + "%s: at SP %c Port %d (%s, default SP %c)\n", + CLARIION_NAME, csdev->current_sp + 'A', + csdev->port, lun_state[csdev->lun_state], + csdev->default_sp + 'A'); + + return result; } const struct scsi_dh_devlist clariion_dev_list[] = { {"DGC", "RAID"}, {"DGC", "DISK"}, + {"DGC", "VRAID"}, {NULL, NULL}, }; @@ -407,6 +580,7 @@ static struct scsi_device_handler clariion_dh = { .detach = clariion_bus_detach, .check_sense = clariion_check_sense, .activate = clariion_activate, + .prep_fn = clariion_prep_fn, }; /* @@ -417,28 +591,50 @@ static int clariion_bus_attach(struct scsi_device *sdev) struct scsi_dh_data *scsi_dh_data; struct clariion_dh_data *h; unsigned long flags; + int err; scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *) + sizeof(*h) , GFP_KERNEL); if (!scsi_dh_data) { - sdev_printk(KERN_ERR, sdev, "Attach failed %s.\n", + sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n", CLARIION_NAME); return -ENOMEM; } scsi_dh_data->scsi_dh = &clariion_dh; h = (struct clariion_dh_data *) scsi_dh_data->buf; + h->lun_state = CLARIION_LUN_UNINITIALIZED; h->default_sp = CLARIION_UNBOUND_LU; h->current_sp = CLARIION_UNBOUND_LU; + err = clariion_std_inquiry(sdev, h); + if (err != SCSI_DH_OK) + goto failed; + + err = clariion_send_inquiry(sdev, h); + if (err != SCSI_DH_OK) + goto failed; + + if (!try_module_get(THIS_MODULE)) + goto failed; + spin_lock_irqsave(sdev->request_queue->queue_lock, flags); sdev->scsi_dh_data = scsi_dh_data; spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); - sdev_printk(KERN_NOTICE, sdev, "Attached %s.\n", CLARIION_NAME); - try_module_get(THIS_MODULE); + sdev_printk(KERN_INFO, sdev, + "%s: connected to SP %c Port %d (%s, default SP %c)\n", + CLARIION_NAME, h->current_sp + 'A', + h->port, lun_state[h->lun_state], + h->default_sp + 'A'); return 0; + +failed: + kfree(scsi_dh_data); + sdev_printk(KERN_ERR, sdev, "%s: not attached\n", + CLARIION_NAME); + return -EINVAL; } static void clariion_bus_detach(struct scsi_device *sdev) @@ -451,7 +647,7 @@ static void clariion_bus_detach(struct scsi_device *sdev) sdev->scsi_dh_data = NULL; spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); - sdev_printk(KERN_NOTICE, sdev, "Detached %s.\n", + sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", CLARIION_NAME); kfree(scsi_dh_data); @@ -464,7 +660,8 @@ static int __init clariion_init(void) r = scsi_register_device_handler(&clariion_dh); if (r != 0) - printk(KERN_ERR "Failed to register scsi device handler."); + printk(KERN_ERR "%s: Failed to register scsi device handler.", + CLARIION_NAME); return r; } -- cgit v1.2.1 From 2aef6d5c05ee5c02f2e4d737b8738deb118cf892 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Thu, 17 Jul 2008 16:53:09 -0700 Subject: [SCSI] scsi_dh: Update hp_sw hardware handler This patch updates the hp_sw device handler to properly check the return codes etc. And adds the 'correct' machine definitions. Signed-off-by: Hannes Reinecke Signed-off-by: Chandra Seetharaman Signed-off-by: James Bottomley --- drivers/scsi/device_handler/scsi_dh_hp_sw.c | 272 ++++++++++++++++++++++++---- 1 file changed, 234 insertions(+), 38 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/device_handler/scsi_dh_hp_sw.c b/drivers/scsi/device_handler/scsi_dh_hp_sw.c index 78259bc5dfc9..9c7a1f8ebb72 100644 --- a/drivers/scsi/device_handler/scsi_dh_hp_sw.c +++ b/drivers/scsi/device_handler/scsi_dh_hp_sw.c @@ -4,6 +4,7 @@ * * Copyright (C) 2006 Red Hat, Inc. All rights reserved. * Copyright (C) 2006 Mike Christie + * Copyright (C) 2008 Hannes Reinecke * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -25,13 +26,18 @@ #include #include -#define HP_SW_NAME "hp_sw" +#define HP_SW_NAME "hp_sw" -#define HP_SW_TIMEOUT (60 * HZ) -#define HP_SW_RETRIES 3 +#define HP_SW_TIMEOUT (60 * HZ) +#define HP_SW_RETRIES 3 + +#define HP_SW_PATH_UNINITIALIZED -1 +#define HP_SW_PATH_ACTIVE 0 +#define HP_SW_PATH_PASSIVE 1 struct hp_sw_dh_data { unsigned char sense[SCSI_SENSE_BUFFERSIZE]; + int path_state; int retries; }; @@ -42,51 +48,161 @@ static inline struct hp_sw_dh_data *get_hp_sw_data(struct scsi_device *sdev) return ((struct hp_sw_dh_data *) scsi_dh_data->buf); } -static int hp_sw_done(struct scsi_device *sdev) +/* + * tur_done - Handle TEST UNIT READY return status + * @sdev: sdev the command has been sent to + * @errors: blk error code + * + * Returns SCSI_DH_DEV_OFFLINED if the sdev is on the passive path + */ +static int tur_done(struct scsi_device *sdev, unsigned char *sense) { - struct hp_sw_dh_data *h = get_hp_sw_data(sdev); struct scsi_sense_hdr sshdr; - int rc; - - sdev_printk(KERN_INFO, sdev, "hp_sw_done\n"); + int ret; - rc = scsi_normalize_sense(h->sense, SCSI_SENSE_BUFFERSIZE, &sshdr); - if (!rc) + ret = scsi_normalize_sense(sense, SCSI_SENSE_BUFFERSIZE, &sshdr); + if (!ret) { + sdev_printk(KERN_WARNING, sdev, + "%s: sending tur failed, no sense available\n", + HP_SW_NAME); + ret = SCSI_DH_IO; goto done; + } switch (sshdr.sense_key) { + case UNIT_ATTENTION: + ret = SCSI_DH_IMM_RETRY; + break; case NOT_READY: - if ((sshdr.asc == 0x04) && (sshdr.ascq == 3)) { - rc = SCSI_DH_RETRY; - h->retries++; + if ((sshdr.asc == 0x04) && (sshdr.ascq == 2)) { + /* + * LUN not ready - Initialization command required + * + * This is the passive path + */ + ret = SCSI_DH_DEV_OFFLINED; break; } - /* fall through */ + /* Fallthrough */ default: - h->retries++; - rc = SCSI_DH_IMM_RETRY; + sdev_printk(KERN_WARNING, sdev, + "%s: sending tur failed, sense %x/%x/%x\n", + HP_SW_NAME, sshdr.sense_key, sshdr.asc, + sshdr.ascq); + break; } done: - if (rc == SCSI_DH_OK || rc == SCSI_DH_IO) - h->retries = 0; - else if (h->retries > HP_SW_RETRIES) { - h->retries = 0; + return ret; +} + +/* + * hp_sw_tur - Send TEST UNIT READY + * @sdev: sdev command should be sent to + * + * Use the TEST UNIT READY command to determine + * the path state. + */ +static int hp_sw_tur(struct scsi_device *sdev, struct hp_sw_dh_data *h) +{ + struct request *req; + int ret; + + req = blk_get_request(sdev->request_queue, WRITE, GFP_NOIO); + if (!req) + return SCSI_DH_RES_TEMP_UNAVAIL; + + req->cmd_type = REQ_TYPE_BLOCK_PC; + req->cmd_flags |= REQ_FAILFAST; + req->cmd_len = COMMAND_SIZE(TEST_UNIT_READY); + memset(req->cmd, 0, MAX_COMMAND_SIZE); + req->cmd[0] = TEST_UNIT_READY; + req->timeout = HP_SW_TIMEOUT; + req->sense = h->sense; + memset(req->sense, 0, SCSI_SENSE_BUFFERSIZE); + req->sense_len = 0; + +retry: + ret = blk_execute_rq(req->q, NULL, req, 1); + if (ret == -EIO) { + if (req->sense_len > 0) { + ret = tur_done(sdev, h->sense); + } else { + sdev_printk(KERN_WARNING, sdev, + "%s: sending tur failed with %x\n", + HP_SW_NAME, req->errors); + ret = SCSI_DH_IO; + } + } else { + h->path_state = HP_SW_PATH_ACTIVE; + ret = SCSI_DH_OK; + } + if (ret == SCSI_DH_IMM_RETRY) + goto retry; + if (ret == SCSI_DH_DEV_OFFLINED) { + h->path_state = HP_SW_PATH_PASSIVE; + ret = SCSI_DH_OK; + } + + blk_put_request(req); + + return ret; +} + +/* + * start_done - Handle START STOP UNIT return status + * @sdev: sdev the command has been sent to + * @errors: blk error code + */ +static int start_done(struct scsi_device *sdev, unsigned char *sense) +{ + struct scsi_sense_hdr sshdr; + int rc; + + rc = scsi_normalize_sense(sense, SCSI_SENSE_BUFFERSIZE, &sshdr); + if (!rc) { + sdev_printk(KERN_WARNING, sdev, + "%s: sending start_stop_unit failed, " + "no sense available\n", + HP_SW_NAME); + return SCSI_DH_IO; + } + switch (sshdr.sense_key) { + case NOT_READY: + if ((sshdr.asc == 0x04) && (sshdr.ascq == 3)) { + /* + * LUN not ready - manual intervention required + * + * Switch-over in progress, retry. + */ + rc = SCSI_DH_RETRY; + break; + } + /* fall through */ + default: + sdev_printk(KERN_WARNING, sdev, + "%s: sending start_stop_unit failed, sense %x/%x/%x\n", + HP_SW_NAME, sshdr.sense_key, sshdr.asc, + sshdr.ascq); rc = SCSI_DH_IO; } + return rc; } -static int hp_sw_activate(struct scsi_device *sdev) +/* + * hp_sw_start_stop - Send START STOP UNIT command + * @sdev: sdev command should be sent to + * + * Sending START STOP UNIT activates the SP. + */ +static int hp_sw_start_stop(struct scsi_device *sdev, struct hp_sw_dh_data *h) { - struct hp_sw_dh_data *h = get_hp_sw_data(sdev); struct request *req; - int ret = SCSI_DH_RES_TEMP_UNAVAIL; + int ret, retry; - req = blk_get_request(sdev->request_queue, WRITE, GFP_ATOMIC); + req = blk_get_request(sdev->request_queue, WRITE, GFP_NOIO); if (!req) - goto done; - - sdev_printk(KERN_INFO, sdev, "sending START_STOP."); + return SCSI_DH_RES_TEMP_UNAVAIL; req->cmd_type = REQ_TYPE_BLOCK_PC; req->cmd_flags |= REQ_FAILFAST; @@ -98,19 +214,78 @@ static int hp_sw_activate(struct scsi_device *sdev) req->sense = h->sense; memset(req->sense, 0, SCSI_SENSE_BUFFERSIZE); req->sense_len = 0; + retry = h->retries; +retry: ret = blk_execute_rq(req->q, NULL, req, 1); - if (!ret) /* SUCCESS */ - ret = hp_sw_done(sdev); - else + if (ret == -EIO) { + if (req->sense_len > 0) { + ret = start_done(sdev, h->sense); + } else { + sdev_printk(KERN_WARNING, sdev, + "%s: sending start_stop_unit failed with %x\n", + HP_SW_NAME, req->errors); + ret = SCSI_DH_IO; + } + } else + ret = SCSI_DH_OK; + + if (ret == SCSI_DH_RETRY) { + if (--retry) + goto retry; ret = SCSI_DH_IO; -done: + } + + blk_put_request(req); + + return ret; +} + +static int hp_sw_prep_fn(struct scsi_device *sdev, struct request *req) +{ + struct hp_sw_dh_data *h = get_hp_sw_data(sdev); + int ret = BLKPREP_OK; + + if (h->path_state != HP_SW_PATH_ACTIVE) { + ret = BLKPREP_KILL; + req->cmd_flags |= REQ_QUIET; + } + return ret; + +} + +/* + * hp_sw_activate - Activate a path + * @sdev: sdev on the path to be activated + * + * The HP Active/Passive firmware is pretty simple; + * the passive path reports NOT READY with sense codes + * 0x04/0x02; a START STOP UNIT command will then + * activate the passive path (and deactivate the + * previously active one). + */ +static int hp_sw_activate(struct scsi_device *sdev) +{ + int ret = SCSI_DH_OK; + struct hp_sw_dh_data *h = get_hp_sw_data(sdev); + + ret = hp_sw_tur(sdev, h); + + if (ret == SCSI_DH_OK && h->path_state == HP_SW_PATH_PASSIVE) { + ret = hp_sw_start_stop(sdev, h); + if (ret == SCSI_DH_OK) + sdev_printk(KERN_INFO, sdev, + "%s: activated path\n", + HP_SW_NAME); + } + return ret; } const struct scsi_dh_devlist hp_sw_dh_data_list[] = { - {"COMPAQ", "MSA"}, - {"HP", "HSV"}, + {"COMPAQ", "MSA1000 VOLUME"}, + {"COMPAQ", "HSV110"}, + {"HP", "HSV100"}, {"DEC", "HSG80"}, {NULL, NULL}, }; @@ -125,30 +300,51 @@ static struct scsi_device_handler hp_sw_dh = { .attach = hp_sw_bus_attach, .detach = hp_sw_bus_detach, .activate = hp_sw_activate, + .prep_fn = hp_sw_prep_fn, }; static int hp_sw_bus_attach(struct scsi_device *sdev) { struct scsi_dh_data *scsi_dh_data; + struct hp_sw_dh_data *h; unsigned long flags; + int ret; scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *) + sizeof(struct hp_sw_dh_data) , GFP_KERNEL); if (!scsi_dh_data) { - sdev_printk(KERN_ERR, sdev, "Attach Failed %s.\n", + sdev_printk(KERN_ERR, sdev, "%s: Attach Failed\n", HP_SW_NAME); return 0; } scsi_dh_data->scsi_dh = &hp_sw_dh; + h = (struct hp_sw_dh_data *) scsi_dh_data->buf; + h->path_state = HP_SW_PATH_UNINITIALIZED; + h->retries = HP_SW_RETRIES; + + ret = hp_sw_tur(sdev, h); + if (ret != SCSI_DH_OK || h->path_state == HP_SW_PATH_UNINITIALIZED) + goto failed; + + if (!try_module_get(THIS_MODULE)) + goto failed; + spin_lock_irqsave(sdev->request_queue->queue_lock, flags); sdev->scsi_dh_data = scsi_dh_data; spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); - try_module_get(THIS_MODULE); - sdev_printk(KERN_NOTICE, sdev, "Attached %s.\n", HP_SW_NAME); + sdev_printk(KERN_INFO, sdev, "%s: attached to %s path\n", + HP_SW_NAME, h->path_state == HP_SW_PATH_ACTIVE? + "active":"passive"); return 0; + +failed: + kfree(scsi_dh_data); + sdev_printk(KERN_ERR, sdev, "%s: not attached\n", + HP_SW_NAME); + return -EINVAL; } static void hp_sw_bus_detach( struct scsi_device *sdev ) @@ -162,7 +358,7 @@ static void hp_sw_bus_detach( struct scsi_device *sdev ) spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); module_put(THIS_MODULE); - sdev_printk(KERN_NOTICE, sdev, "Detached %s\n", HP_SW_NAME); + sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", HP_SW_NAME); kfree(scsi_dh_data); } @@ -180,6 +376,6 @@ static void __exit hp_sw_exit(void) module_init(hp_sw_init); module_exit(hp_sw_exit); -MODULE_DESCRIPTION("HP MSA 1000"); +MODULE_DESCRIPTION("HP Active/Passive driver"); MODULE_AUTHOR("Mike Christie Date: Thu, 17 Jul 2008 16:53:15 -0700 Subject: [SCSI] scsi_dh: Update RDAC device handler This patch updates the RDAC device handler to refuse to attach to devices not supporting the RDAC vpd pages. Signed-off-by: Hannes Reinecke Signed-off-by: Chandra Seetharaman Signed-off-by: James Bottomley --- drivers/scsi/device_handler/scsi_dh_rdac.c | 163 +++++++++++++++++------------ 1 file changed, 94 insertions(+), 69 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c index 0e25a6e9c82d..b093a501f8ae 100644 --- a/drivers/scsi/device_handler/scsi_dh_rdac.c +++ b/drivers/scsi/device_handler/scsi_dh_rdac.c @@ -173,6 +173,11 @@ struct rdac_dh_data { #define RDAC_STATE_ACTIVE 0 #define RDAC_STATE_PASSIVE 1 unsigned char state; + +#define RDAC_LUN_UNOWNED 0 +#define RDAC_LUN_OWNED 1 +#define RDAC_LUN_AVT 2 + char lun_state; unsigned char sense[SCSI_SENSE_BUFFERSIZE]; union { struct c2_inquiry c2; @@ -182,6 +187,13 @@ struct rdac_dh_data { } inq; }; +static const char *lun_state[] = +{ + "unowned", + "owned", + "owned (AVT mode)", +}; + static LIST_HEAD(ctlr_list); static DEFINE_SPINLOCK(list_lock); @@ -197,9 +209,8 @@ static struct request *get_rdac_req(struct scsi_device *sdev, { struct request *rq; struct request_queue *q = sdev->request_queue; - struct rdac_dh_data *h = get_rdac_data(sdev); - rq = blk_get_request(q, rw, GFP_KERNEL); + rq = blk_get_request(q, rw, GFP_NOIO); if (!rq) { sdev_printk(KERN_INFO, sdev, @@ -207,17 +218,14 @@ static struct request *get_rdac_req(struct scsi_device *sdev, return NULL; } - if (buflen && blk_rq_map_kern(q, rq, buffer, buflen, GFP_KERNEL)) { + if (buflen && blk_rq_map_kern(q, rq, buffer, buflen, GFP_NOIO)) { blk_put_request(rq); sdev_printk(KERN_INFO, sdev, "get_rdac_req: blk_rq_map_kern failed.\n"); return NULL; } - memset(&rq->cmd, 0, BLK_MAX_CDB); - rq->sense = h->sense; - memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE); - rq->sense_len = 0; + memset(rq->cmd, 0, BLK_MAX_CDB); rq->cmd_type = REQ_TYPE_BLOCK_PC; rq->cmd_flags |= REQ_FAILFAST | REQ_NOMERGE; @@ -227,12 +235,12 @@ static struct request *get_rdac_req(struct scsi_device *sdev, return rq; } -static struct request *rdac_failover_get(struct scsi_device *sdev) +static struct request *rdac_failover_get(struct scsi_device *sdev, + struct rdac_dh_data *h) { struct request *rq; struct rdac_mode_common *common; unsigned data_size; - struct rdac_dh_data *h = get_rdac_data(sdev); if (h->ctlr->use_ms10) { struct rdac_pg_expanded *rdac_pg; @@ -277,6 +285,10 @@ static struct request *rdac_failover_get(struct scsi_device *sdev) } rq->cmd_len = COMMAND_SIZE(rq->cmd[0]); + rq->sense = h->sense; + memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE); + rq->sense_len = 0; + return rq; } @@ -321,11 +333,10 @@ done: } static int submit_inquiry(struct scsi_device *sdev, int page_code, - unsigned int len) + unsigned int len, struct rdac_dh_data *h) { struct request *rq; struct request_queue *q = sdev->request_queue; - struct rdac_dh_data *h = get_rdac_data(sdev); int err = SCSI_DH_RES_TEMP_UNAVAIL; rq = get_rdac_req(sdev, &h->inq, len, READ); @@ -338,59 +349,68 @@ static int submit_inquiry(struct scsi_device *sdev, int page_code, rq->cmd[2] = page_code; rq->cmd[4] = len; rq->cmd_len = COMMAND_SIZE(INQUIRY); + + rq->sense = h->sense; + memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE); + rq->sense_len = 0; + err = blk_execute_rq(q, NULL, rq, 1); if (err == -EIO) err = SCSI_DH_IO; + + blk_put_request(rq); done: return err; } -static int get_lun(struct scsi_device *sdev) +static int get_lun(struct scsi_device *sdev, struct rdac_dh_data *h) { int err; struct c8_inquiry *inqp; - struct rdac_dh_data *h = get_rdac_data(sdev); - err = submit_inquiry(sdev, 0xC8, sizeof(struct c8_inquiry)); + err = submit_inquiry(sdev, 0xC8, sizeof(struct c8_inquiry), h); if (err == SCSI_DH_OK) { inqp = &h->inq.c8; - h->lun = inqp->lun[7]; /* currently it uses only one byte */ + if (inqp->page_code != 0xc8) + return SCSI_DH_NOSYS; + if (inqp->page_id[0] != 'e' || inqp->page_id[1] != 'd' || + inqp->page_id[2] != 'i' || inqp->page_id[3] != 'd') + return SCSI_DH_NOSYS; + h->lun = scsilun_to_int((struct scsi_lun *)inqp->lun); } return err; } -#define RDAC_OWNED 0 -#define RDAC_UNOWNED 1 -#define RDAC_FAILED 2 -static int check_ownership(struct scsi_device *sdev) +static int check_ownership(struct scsi_device *sdev, struct rdac_dh_data *h) { int err; struct c9_inquiry *inqp; - struct rdac_dh_data *h = get_rdac_data(sdev); - err = submit_inquiry(sdev, 0xC9, sizeof(struct c9_inquiry)); + err = submit_inquiry(sdev, 0xC9, sizeof(struct c9_inquiry), h); if (err == SCSI_DH_OK) { - err = RDAC_UNOWNED; inqp = &h->inq.c9; - /* - * If in AVT mode or if the path already owns the LUN, - * return RDAC_OWNED; - */ - if (((inqp->avte_cvp >> 7) == 0x1) || - ((inqp->avte_cvp & 0x1) != 0)) - err = RDAC_OWNED; - } else - err = RDAC_FAILED; + if ((inqp->avte_cvp >> 7) == 0x1) { + /* LUN in AVT mode */ + sdev_printk(KERN_NOTICE, sdev, + "%s: AVT mode detected\n", + RDAC_NAME); + h->lun_state = RDAC_LUN_AVT; + } else if ((inqp->avte_cvp & 0x1) != 0) { + /* LUN was owned by the controller */ + h->lun_state = RDAC_LUN_OWNED; + } + } + return err; } -static int initialize_controller(struct scsi_device *sdev) +static int initialize_controller(struct scsi_device *sdev, + struct rdac_dh_data *h) { int err; struct c4_inquiry *inqp; - struct rdac_dh_data *h = get_rdac_data(sdev); - err = submit_inquiry(sdev, 0xC4, sizeof(struct c4_inquiry)); + err = submit_inquiry(sdev, 0xC4, sizeof(struct c4_inquiry), h); if (err == SCSI_DH_OK) { inqp = &h->inq.c4; h->ctlr = get_controller(inqp->subsys_id, inqp->slot_id); @@ -400,13 +420,12 @@ static int initialize_controller(struct scsi_device *sdev) return err; } -static int set_mode_select(struct scsi_device *sdev) +static int set_mode_select(struct scsi_device *sdev, struct rdac_dh_data *h) { int err; struct c2_inquiry *inqp; - struct rdac_dh_data *h = get_rdac_data(sdev); - err = submit_inquiry(sdev, 0xC2, sizeof(struct c2_inquiry)); + err = submit_inquiry(sdev, 0xC2, sizeof(struct c2_inquiry), h); if (err == SCSI_DH_OK) { inqp = &h->inq.c2; /* @@ -421,13 +440,13 @@ static int set_mode_select(struct scsi_device *sdev) return err; } -static int mode_select_handle_sense(struct scsi_device *sdev) +static int mode_select_handle_sense(struct scsi_device *sdev, + unsigned char *sensebuf) { struct scsi_sense_hdr sense_hdr; - struct rdac_dh_data *h = get_rdac_data(sdev); int sense, err = SCSI_DH_IO, ret; - ret = scsi_normalize_sense(h->sense, SCSI_SENSE_BUFFERSIZE, &sense_hdr); + ret = scsi_normalize_sense(sensebuf, SCSI_SENSE_BUFFERSIZE, &sense_hdr); if (!ret) goto done; @@ -451,14 +470,13 @@ done: return err; } -static int send_mode_select(struct scsi_device *sdev) +static int send_mode_select(struct scsi_device *sdev, struct rdac_dh_data *h) { struct request *rq; struct request_queue *q = sdev->request_queue; - struct rdac_dh_data *h = get_rdac_data(sdev); int err = SCSI_DH_RES_TEMP_UNAVAIL; - rq = rdac_failover_get(sdev); + rq = rdac_failover_get(sdev, h); if (!rq) goto done; @@ -466,9 +484,11 @@ static int send_mode_select(struct scsi_device *sdev) err = blk_execute_rq(q, NULL, rq, 1); if (err != SCSI_DH_OK) - err = mode_select_handle_sense(sdev); + err = mode_select_handle_sense(sdev, h->sense); if (err == SCSI_DH_OK) h->state = RDAC_STATE_ACTIVE; + + blk_put_request(rq); done: return err; } @@ -478,38 +498,23 @@ static int rdac_activate(struct scsi_device *sdev) struct rdac_dh_data *h = get_rdac_data(sdev); int err = SCSI_DH_OK; - if (h->lun == UNINITIALIZED_LUN) { - err = get_lun(sdev); - if (err != SCSI_DH_OK) - goto done; - } - - err = check_ownership(sdev); - switch (err) { - case RDAC_UNOWNED: - break; - case RDAC_OWNED: - err = SCSI_DH_OK; - goto done; - case RDAC_FAILED: - default: - err = SCSI_DH_IO; + err = check_ownership(sdev, h); + if (err != SCSI_DH_OK) goto done; - } if (!h->ctlr) { - err = initialize_controller(sdev); + err = initialize_controller(sdev, h); if (err != SCSI_DH_OK) goto done; } if (h->ctlr->use_ms10 == -1) { - err = set_mode_select(sdev); + err = set_mode_select(sdev, h); if (err != SCSI_DH_OK) goto done; } - - err = send_mode_select(sdev); + if (h->lun_state == RDAC_LUN_UNOWNED) + err = send_mode_select(sdev, h); done: return err; } @@ -606,11 +611,12 @@ static int rdac_bus_attach(struct scsi_device *sdev) struct scsi_dh_data *scsi_dh_data; struct rdac_dh_data *h; unsigned long flags; + int err; scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *) + sizeof(*h) , GFP_KERNEL); if (!scsi_dh_data) { - sdev_printk(KERN_ERR, sdev, "Attach failed %s.\n", + sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n", RDAC_NAME); return 0; } @@ -619,14 +625,33 @@ static int rdac_bus_attach(struct scsi_device *sdev) h = (struct rdac_dh_data *) scsi_dh_data->buf; h->lun = UNINITIALIZED_LUN; h->state = RDAC_STATE_ACTIVE; + + err = get_lun(sdev, h); + if (err != SCSI_DH_OK) + goto failed; + + err = check_ownership(sdev, h); + if (err != SCSI_DH_OK) + goto failed; + + if (!try_module_get(THIS_MODULE)) + goto failed; + spin_lock_irqsave(sdev->request_queue->queue_lock, flags); sdev->scsi_dh_data = scsi_dh_data; spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); - try_module_get(THIS_MODULE); - sdev_printk(KERN_NOTICE, sdev, "Attached %s\n", RDAC_NAME); + sdev_printk(KERN_NOTICE, sdev, + "%s: LUN %d (%s)\n", + RDAC_NAME, h->lun, lun_state[(int)h->lun_state]); return 0; + +failed: + kfree(scsi_dh_data); + sdev_printk(KERN_ERR, sdev, "%s: not attached\n", + RDAC_NAME); + return -EINVAL; } static void rdac_bus_detach( struct scsi_device *sdev ) @@ -645,7 +670,7 @@ static void rdac_bus_detach( struct scsi_device *sdev ) kref_put(&h->ctlr->kref, release_controller); kfree(scsi_dh_data); module_put(THIS_MODULE); - sdev_printk(KERN_NOTICE, sdev, "Detached %s\n", RDAC_NAME); + sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", RDAC_NAME); } -- cgit v1.2.1 From 057ea7c9683c3d684128cced796f03c179ecf1c2 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Thu, 17 Jul 2008 16:53:21 -0700 Subject: [SCSI] scsi_dh: add generic SPC-3 alua handler Signed-off-by: Hannes Reinecke Signed-off-by: Chandra Seetharaman Signed-off-by: James Bottomley --- drivers/scsi/device_handler/Kconfig | 8 + drivers/scsi/device_handler/Makefile | 1 + drivers/scsi/device_handler/scsi_dh_alua.c | 802 +++++++++++++++++++++++++++++ 3 files changed, 811 insertions(+) create mode 100644 drivers/scsi/device_handler/scsi_dh_alua.c (limited to 'drivers') diff --git a/drivers/scsi/device_handler/Kconfig b/drivers/scsi/device_handler/Kconfig index 2adc0f666b68..67070257919f 100644 --- a/drivers/scsi/device_handler/Kconfig +++ b/drivers/scsi/device_handler/Kconfig @@ -30,3 +30,11 @@ config SCSI_DH_EMC depends on SCSI_DH help If you have a EMC CLARiiON select y. Otherwise, say N. + +config SCSI_DH_ALUA + tristate "SPC-3 ALUA Device Handler (EXPERIMENTAL)" + depends on SCSI_DH && EXPERIMENTAL + help + SCSI Device handler for generic SPC-3 Asymmetric Logical Unit + Access (ALUA). + diff --git a/drivers/scsi/device_handler/Makefile b/drivers/scsi/device_handler/Makefile index 35272e93b1c8..e1d2ea083e15 100644 --- a/drivers/scsi/device_handler/Makefile +++ b/drivers/scsi/device_handler/Makefile @@ -5,3 +5,4 @@ obj-$(CONFIG_SCSI_DH) += scsi_dh.o obj-$(CONFIG_SCSI_DH_RDAC) += scsi_dh_rdac.o obj-$(CONFIG_SCSI_DH_HP_SW) += scsi_dh_hp_sw.o obj-$(CONFIG_SCSI_DH_EMC) += scsi_dh_emc.o +obj-$(CONFIG_SCSI_DH_ALUA) += scsi_dh_alua.o diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c new file mode 100644 index 000000000000..6e464488bcab --- /dev/null +++ b/drivers/scsi/device_handler/scsi_dh_alua.c @@ -0,0 +1,802 @@ +/* + * Generic SCSI-3 ALUA SCSI Device Handler + * + * Copyright (C) 2007, 2008 Hannes Reinecke, SUSE Linux Products GmbH. + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + */ +#include +#include +#include + +#define ALUA_DH_NAME "alua" +#define ALUA_DH_VER "1.2" + +#define TPGS_STATE_OPTIMIZED 0x0 +#define TPGS_STATE_NONOPTIMIZED 0x1 +#define TPGS_STATE_STANDBY 0x2 +#define TPGS_STATE_UNAVAILABLE 0x3 +#define TPGS_STATE_OFFLINE 0xe +#define TPGS_STATE_TRANSITIONING 0xf + +#define TPGS_SUPPORT_NONE 0x00 +#define TPGS_SUPPORT_OPTIMIZED 0x01 +#define TPGS_SUPPORT_NONOPTIMIZED 0x02 +#define TPGS_SUPPORT_STANDBY 0x04 +#define TPGS_SUPPORT_UNAVAILABLE 0x08 +#define TPGS_SUPPORT_OFFLINE 0x40 +#define TPGS_SUPPORT_TRANSITION 0x80 + +#define TPGS_MODE_UNINITIALIZED -1 +#define TPGS_MODE_NONE 0x0 +#define TPGS_MODE_IMPLICIT 0x1 +#define TPGS_MODE_EXPLICIT 0x2 + +#define ALUA_INQUIRY_SIZE 36 +#define ALUA_FAILOVER_TIMEOUT (60 * HZ) +#define ALUA_FAILOVER_RETRIES 5 + +struct alua_dh_data { + int group_id; + int rel_port; + int tpgs; + int state; + unsigned char inq[ALUA_INQUIRY_SIZE]; + unsigned char *buff; + int bufflen; + unsigned char sense[SCSI_SENSE_BUFFERSIZE]; + int senselen; +}; + +#define ALUA_POLICY_SWITCH_CURRENT 0 +#define ALUA_POLICY_SWITCH_ALL 1 + +static inline struct alua_dh_data *get_alua_data(struct scsi_device *sdev) +{ + struct scsi_dh_data *scsi_dh_data = sdev->scsi_dh_data; + BUG_ON(scsi_dh_data == NULL); + return ((struct alua_dh_data *) scsi_dh_data->buf); +} + +static int realloc_buffer(struct alua_dh_data *h, unsigned len) +{ + if (h->buff && h->buff != h->inq) + kfree(h->buff); + + h->buff = kmalloc(len, GFP_NOIO); + if (!h->buff) { + h->buff = h->inq; + h->bufflen = ALUA_INQUIRY_SIZE; + return 1; + } + h->bufflen = len; + return 0; +} + +static struct request *get_alua_req(struct scsi_device *sdev, + void *buffer, unsigned buflen, int rw) +{ + struct request *rq; + struct request_queue *q = sdev->request_queue; + + rq = blk_get_request(q, rw, GFP_NOIO); + + if (!rq) { + sdev_printk(KERN_INFO, sdev, + "%s: blk_get_request failed\n", __FUNCTION__); + return NULL; + } + + if (buflen && blk_rq_map_kern(q, rq, buffer, buflen, GFP_NOIO)) { + blk_put_request(rq); + sdev_printk(KERN_INFO, sdev, + "%s: blk_rq_map_kern failed\n", __FUNCTION__); + return NULL; + } + + rq->cmd_type = REQ_TYPE_BLOCK_PC; + rq->cmd_flags |= REQ_FAILFAST | REQ_NOMERGE; + rq->retries = ALUA_FAILOVER_RETRIES; + rq->timeout = ALUA_FAILOVER_TIMEOUT; + + return rq; +} + +/* + * submit_std_inquiry - Issue a standard INQUIRY command + * @sdev: sdev the command should be send to + */ +static int submit_std_inquiry(struct scsi_device *sdev, struct alua_dh_data *h) +{ + struct request *rq; + int err = SCSI_DH_RES_TEMP_UNAVAIL; + + rq = get_alua_req(sdev, h->inq, ALUA_INQUIRY_SIZE, READ); + if (!rq) + goto done; + + /* Prepare the command. */ + rq->cmd[0] = INQUIRY; + rq->cmd[1] = 0; + rq->cmd[2] = 0; + rq->cmd[4] = ALUA_INQUIRY_SIZE; + rq->cmd_len = COMMAND_SIZE(INQUIRY); + + rq->sense = h->sense; + memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE); + rq->sense_len = h->senselen = 0; + + err = blk_execute_rq(rq->q, NULL, rq, 1); + if (err == -EIO) { + sdev_printk(KERN_INFO, sdev, + "%s: std inquiry failed with %x\n", + ALUA_DH_NAME, rq->errors); + h->senselen = rq->sense_len; + err = SCSI_DH_IO; + } + blk_put_request(rq); +done: + return err; +} + +/* + * submit_vpd_inquiry - Issue an INQUIRY VPD page 0x83 command + * @sdev: sdev the command should be sent to + */ +static int submit_vpd_inquiry(struct scsi_device *sdev, struct alua_dh_data *h) +{ + struct request *rq; + int err = SCSI_DH_RES_TEMP_UNAVAIL; + + rq = get_alua_req(sdev, h->buff, h->bufflen, READ); + if (!rq) + goto done; + + /* Prepare the command. */ + rq->cmd[0] = INQUIRY; + rq->cmd[1] = 1; + rq->cmd[2] = 0x83; + rq->cmd[4] = h->bufflen; + rq->cmd_len = COMMAND_SIZE(INQUIRY); + + rq->sense = h->sense; + memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE); + rq->sense_len = h->senselen = 0; + + err = blk_execute_rq(rq->q, NULL, rq, 1); + if (err == -EIO) { + sdev_printk(KERN_INFO, sdev, + "%s: evpd inquiry failed with %x\n", + ALUA_DH_NAME, rq->errors); + h->senselen = rq->sense_len; + err = SCSI_DH_IO; + } + blk_put_request(rq); +done: + return err; +} + +/* + * submit_rtpg - Issue a REPORT TARGET GROUP STATES command + * @sdev: sdev the command should be sent to + */ +static unsigned submit_rtpg(struct scsi_device *sdev, struct alua_dh_data *h) +{ + struct request *rq; + int err = SCSI_DH_RES_TEMP_UNAVAIL; + + rq = get_alua_req(sdev, h->buff, h->bufflen, READ); + if (!rq) + goto done; + + /* Prepare the command. */ + rq->cmd[0] = MAINTENANCE_IN; + rq->cmd[1] = MI_REPORT_TARGET_PGS; + rq->cmd[6] = (h->bufflen >> 24) & 0xff; + rq->cmd[7] = (h->bufflen >> 16) & 0xff; + rq->cmd[8] = (h->bufflen >> 8) & 0xff; + rq->cmd[9] = h->bufflen & 0xff; + rq->cmd_len = COMMAND_SIZE(MAINTENANCE_IN); + + rq->sense = h->sense; + memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE); + rq->sense_len = h->senselen = 0; + + err = blk_execute_rq(rq->q, NULL, rq, 1); + if (err == -EIO) { + sdev_printk(KERN_INFO, sdev, + "%s: rtpg failed with %x\n", + ALUA_DH_NAME, rq->errors); + h->senselen = rq->sense_len; + err = SCSI_DH_IO; + } + blk_put_request(rq); +done: + return err; +} + +/* + * submit_stpg - Issue a SET TARGET GROUP STATES command + * @sdev: sdev the command should be sent to + * + * Currently we're only setting the current target port group state + * to 'active/optimized' and let the array firmware figure out + * the states of the remaining groups. + */ +static unsigned submit_stpg(struct scsi_device *sdev, struct alua_dh_data *h) +{ + struct request *rq; + int err = SCSI_DH_RES_TEMP_UNAVAIL; + int stpg_len = 8; + + /* Prepare the data buffer */ + memset(h->buff, 0, stpg_len); + h->buff[4] = TPGS_STATE_OPTIMIZED & 0x0f; + h->buff[6] = (h->group_id >> 8) & 0x0f; + h->buff[7] = h->group_id & 0x0f; + + rq = get_alua_req(sdev, h->buff, stpg_len, WRITE); + if (!rq) + goto done; + + /* Prepare the command. */ + rq->cmd[0] = MAINTENANCE_OUT; + rq->cmd[1] = MO_SET_TARGET_PGS; + rq->cmd[6] = (stpg_len >> 24) & 0xff; + rq->cmd[7] = (stpg_len >> 16) & 0xff; + rq->cmd[8] = (stpg_len >> 8) & 0xff; + rq->cmd[9] = stpg_len & 0xff; + rq->cmd_len = COMMAND_SIZE(MAINTENANCE_OUT); + + rq->sense = h->sense; + memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE); + rq->sense_len = h->senselen = 0; + + err = blk_execute_rq(rq->q, NULL, rq, 1); + if (err == -EIO) { + sdev_printk(KERN_INFO, sdev, + "%s: stpg failed with %x\n", + ALUA_DH_NAME, rq->errors); + h->senselen = rq->sense_len; + err = SCSI_DH_IO; + } + blk_put_request(rq); +done: + return err; +} + +/* + * alua_std_inquiry - Evaluate standard INQUIRY command + * @sdev: device to be checked + * + * Just extract the TPGS setting to find out if ALUA + * is supported. + */ +static int alua_std_inquiry(struct scsi_device *sdev, struct alua_dh_data *h) +{ + int err; + + err = submit_std_inquiry(sdev, h); + + if (err != SCSI_DH_OK) + return err; + + /* Check TPGS setting */ + h->tpgs = (h->inq[5] >> 4) & 0x3; + switch (h->tpgs) { + case TPGS_MODE_EXPLICIT|TPGS_MODE_IMPLICIT: + sdev_printk(KERN_INFO, sdev, + "%s: supports implicit and explicit TPGS\n", + ALUA_DH_NAME); + break; + case TPGS_MODE_EXPLICIT: + sdev_printk(KERN_INFO, sdev, "%s: supports explicit TPGS\n", + ALUA_DH_NAME); + break; + case TPGS_MODE_IMPLICIT: + sdev_printk(KERN_INFO, sdev, "%s: supports implicit TPGS\n", + ALUA_DH_NAME); + break; + default: + h->tpgs = TPGS_MODE_NONE; + sdev_printk(KERN_INFO, sdev, "%s: not supported\n", + ALUA_DH_NAME); + err = SCSI_DH_DEV_UNSUPP; + break; + } + + return err; +} + +/* + * alua_vpd_inquiry - Evaluate INQUIRY vpd page 0x83 + * @sdev: device to be checked + * + * Extract the relative target port and the target port group + * descriptor from the list of identificators. + */ +static int alua_vpd_inquiry(struct scsi_device *sdev, struct alua_dh_data *h) +{ + int len; + unsigned err; + unsigned char *d; + + retry: + err = submit_vpd_inquiry(sdev, h); + + if (err != SCSI_DH_OK) + return err; + + /* Check if vpd page exceeds initial buffer */ + len = (h->buff[2] << 8) + h->buff[3] + 4; + if (len > h->bufflen) { + /* Resubmit with the correct length */ + if (realloc_buffer(h, len)) { + sdev_printk(KERN_WARNING, sdev, + "%s: kmalloc buffer failed\n", + ALUA_DH_NAME); + /* Temporary failure, bypass */ + return SCSI_DH_DEV_TEMP_BUSY; + } + goto retry; + } + + /* + * Now look for the correct descriptor. + */ + d = h->buff + 4; + while (d < h->buff + len) { + switch (d[1] & 0xf) { + case 0x4: + /* Relative target port */ + h->rel_port = (d[6] << 8) + d[7]; + break; + case 0x5: + /* Target port group */ + h->group_id = (d[6] << 8) + d[7]; + break; + default: + break; + } + d += d[3] + 4; + } + + if (h->group_id == -1) { + /* + * Internal error; TPGS supported but required + * VPD identification descriptors not present. + * Disable ALUA support + */ + sdev_printk(KERN_INFO, sdev, + "%s: No target port descriptors found\n", + ALUA_DH_NAME); + h->state = TPGS_STATE_OPTIMIZED; + h->tpgs = TPGS_MODE_NONE; + err = SCSI_DH_DEV_UNSUPP; + } else { + sdev_printk(KERN_INFO, sdev, + "%s: port group %02x rel port %02x\n", + ALUA_DH_NAME, h->group_id, h->rel_port); + } + + return err; +} + +static char print_alua_state(int state) +{ + switch (state) { + case TPGS_STATE_OPTIMIZED: + return 'A'; + case TPGS_STATE_NONOPTIMIZED: + return 'N'; + case TPGS_STATE_STANDBY: + return 'S'; + case TPGS_STATE_UNAVAILABLE: + return 'U'; + case TPGS_STATE_OFFLINE: + return 'O'; + case TPGS_STATE_TRANSITIONING: + return 'T'; + default: + return 'X'; + } +} + +static int alua_check_sense(struct scsi_device *sdev, + struct scsi_sense_hdr *sense_hdr) +{ + switch (sense_hdr->sense_key) { + case NOT_READY: + if (sense_hdr->asc == 0x04 && sense_hdr->ascq == 0x0a) + /* + * LUN Not Accessible - ALUA state transition + */ + return NEEDS_RETRY; + if (sense_hdr->asc == 0x04 && sense_hdr->ascq == 0x0b) + /* + * LUN Not Accessible -- Target port in standby state + */ + return SUCCESS; + if (sense_hdr->asc == 0x04 && sense_hdr->ascq == 0x0c) + /* + * LUN Not Accessible -- Target port in unavailable state + */ + return SUCCESS; + if (sense_hdr->asc == 0x04 && sense_hdr->ascq == 0x12) + /* + * LUN Not Ready -- Offline + */ + return SUCCESS; + break; + case UNIT_ATTENTION: + if (sense_hdr->asc == 0x29 && sense_hdr->ascq == 0x00) + /* + * Power On, Reset, or Bus Device Reset, just retry. + */ + return NEEDS_RETRY; + if (sense_hdr->asc == 0x2a && sense_hdr->ascq == 0x06) { + /* + * ALUA state changed + */ + return NEEDS_RETRY; + } + if (sense_hdr->asc == 0x2a && sense_hdr->ascq == 0x07) { + /* + * Implicit ALUA state transition failed + */ + return NEEDS_RETRY; + } + break; + } + + return SCSI_RETURN_NOT_HANDLED; +} + +/* + * alua_stpg - Evaluate SET TARGET GROUP STATES + * @sdev: the device to be evaluated + * @state: the new target group state + * + * Send a SET TARGET GROUP STATES command to the device. + * We only have to test here if we should resubmit the command; + * any other error is assumed as a failure. + */ +static int alua_stpg(struct scsi_device *sdev, int state, + struct alua_dh_data *h) +{ + struct scsi_sense_hdr sense_hdr; + unsigned err; + int retry = ALUA_FAILOVER_RETRIES; + + retry: + err = submit_stpg(sdev, h); + if (err == SCSI_DH_IO && h->senselen > 0) { + err = scsi_normalize_sense(h->sense, SCSI_SENSE_BUFFERSIZE, + &sense_hdr); + if (!err) + return SCSI_DH_IO; + err = alua_check_sense(sdev, &sense_hdr); + if (retry > 0 && err == NEEDS_RETRY) { + retry--; + goto retry; + } + sdev_printk(KERN_INFO, sdev, + "%s: stpg sense code: %02x/%02x/%02x\n", + ALUA_DH_NAME, sense_hdr.sense_key, + sense_hdr.asc, sense_hdr.ascq); + err = SCSI_DH_IO; + } + if (err == SCSI_DH_OK) { + h->state = state; + sdev_printk(KERN_INFO, sdev, + "%s: port group %02x switched to state %c\n", + ALUA_DH_NAME, h->group_id, + print_alua_state(h->state) ); + } + return err; +} + +/* + * alua_rtpg - Evaluate REPORT TARGET GROUP STATES + * @sdev: the device to be evaluated. + * + * Evaluate the Target Port Group State. + * Returns SCSI_DH_DEV_OFFLINED if the path is + * found to be unuseable. + */ +static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h) +{ + struct scsi_sense_hdr sense_hdr; + int len, k, off, valid_states = 0; + char *ucp; + unsigned err; + + retry: + err = submit_rtpg(sdev, h); + + if (err == SCSI_DH_IO && h->senselen > 0) { + err = scsi_normalize_sense(h->sense, SCSI_SENSE_BUFFERSIZE, + &sense_hdr); + if (!err) + return SCSI_DH_IO; + + err = alua_check_sense(sdev, &sense_hdr); + if (err == NEEDS_RETRY) + goto retry; + sdev_printk(KERN_INFO, sdev, + "%s: rtpg sense code %02x/%02x/%02x\n", + ALUA_DH_NAME, sense_hdr.sense_key, + sense_hdr.asc, sense_hdr.ascq); + err = SCSI_DH_IO; + } + if (err != SCSI_DH_OK) + return err; + + len = (h->buff[0] << 24) + (h->buff[1] << 16) + + (h->buff[2] << 8) + h->buff[3] + 4; + + if (len > h->bufflen) { + /* Resubmit with the correct length */ + if (realloc_buffer(h, len)) { + sdev_printk(KERN_WARNING, sdev, + "%s: kmalloc buffer failed\n",__FUNCTION__); + /* Temporary failure, bypass */ + return SCSI_DH_DEV_TEMP_BUSY; + } + goto retry; + } + + for (k = 4, ucp = h->buff + 4; k < len; k += off, ucp += off) { + if (h->group_id == (ucp[2] << 8) + ucp[3]) { + h->state = ucp[0] & 0x0f; + valid_states = ucp[1]; + } + off = 8 + (ucp[7] * 4); + } + + sdev_printk(KERN_INFO, sdev, + "%s: port group %02x state %c supports %c%c%c%c%c%c\n", + ALUA_DH_NAME, h->group_id, print_alua_state(h->state), + valid_states&TPGS_SUPPORT_TRANSITION?'T':'t', + valid_states&TPGS_SUPPORT_OFFLINE?'O':'o', + valid_states&TPGS_SUPPORT_UNAVAILABLE?'U':'u', + valid_states&TPGS_SUPPORT_STANDBY?'S':'s', + valid_states&TPGS_SUPPORT_NONOPTIMIZED?'N':'n', + valid_states&TPGS_SUPPORT_OPTIMIZED?'A':'a'); + + if (h->tpgs & TPGS_MODE_EXPLICIT) { + switch (h->state) { + case TPGS_STATE_TRANSITIONING: + /* State transition, retry */ + goto retry; + break; + case TPGS_STATE_OFFLINE: + /* Path is offline, fail */ + err = SCSI_DH_DEV_OFFLINED; + break; + default: + break; + } + } else { + /* Only Implicit ALUA support */ + if (h->state == TPGS_STATE_OPTIMIZED || + h->state == TPGS_STATE_NONOPTIMIZED || + h->state == TPGS_STATE_STANDBY) + /* Useable path if active */ + err = SCSI_DH_OK; + else + /* Path unuseable for unavailable/offline */ + err = SCSI_DH_DEV_OFFLINED; + } + return err; +} + +/* + * alua_initialize - Initialize ALUA state + * @sdev: the device to be initialized + * + * For the prep_fn to work correctly we have + * to initialize the ALUA state for the device. + */ +static int alua_initialize(struct scsi_device *sdev, struct alua_dh_data *h) +{ + int err; + + err = alua_std_inquiry(sdev, h); + if (err != SCSI_DH_OK) + goto out; + + err = alua_vpd_inquiry(sdev, h); + if (err != SCSI_DH_OK) + goto out; + + err = alua_rtpg(sdev, h); + if (err != SCSI_DH_OK) + goto out; + +out: + return err; +} + +/* + * alua_activate - activate a path + * @sdev: device on the path to be activated + * + * We're currently switching the port group to be activated only and + * let the array figure out the rest. + * There may be other arrays which require us to switch all port groups + * based on a certain policy. But until we actually encounter them it + * should be okay. + */ +static int alua_activate(struct scsi_device *sdev) +{ + struct alua_dh_data *h = get_alua_data(sdev); + int err = SCSI_DH_OK; + + if (h->group_id != -1) { + err = alua_rtpg(sdev, h); + if (err != SCSI_DH_OK) + goto out; + } + + if (h->tpgs == TPGS_MODE_EXPLICIT && h->state != TPGS_STATE_OPTIMIZED) + err = alua_stpg(sdev, TPGS_STATE_OPTIMIZED, h); + +out: + return err; +} + +/* + * alua_prep_fn - request callback + * + * Fail I/O to all paths not in state + * active/optimized or active/non-optimized. + */ +static int alua_prep_fn(struct scsi_device *sdev, struct request *req) +{ + struct alua_dh_data *h = get_alua_data(sdev); + int ret = BLKPREP_OK; + + if (h->state != TPGS_STATE_OPTIMIZED && + h->state != TPGS_STATE_NONOPTIMIZED) { + ret = BLKPREP_KILL; + req->cmd_flags |= REQ_QUIET; + } + return ret; + +} + +const struct scsi_dh_devlist alua_dev_list[] = { + {"HP", "MSA VOLUME" }, + {"HP", "HSV101" }, + {"HP", "HSV111" }, + {"HP", "HSV200" }, + {"HP", "HSV210" }, + {"HP", "HSV300" }, + {"IBM", "2107900" }, + {"IBM", "2145" }, + {"Pillar", "Axiom" }, + {NULL, NULL} +}; + +static int alua_bus_attach(struct scsi_device *sdev); +static void alua_bus_detach(struct scsi_device *sdev); + +static struct scsi_device_handler alua_dh = { + .name = ALUA_DH_NAME, + .module = THIS_MODULE, + .devlist = alua_dev_list, + .attach = alua_bus_attach, + .detach = alua_bus_detach, + .prep_fn = alua_prep_fn, + .check_sense = alua_check_sense, + .activate = alua_activate, +}; + +/* + * alua_bus_attach - Attach device handler + * @sdev: device to be attached to + */ +static int alua_bus_attach(struct scsi_device *sdev) +{ + struct scsi_dh_data *scsi_dh_data; + struct alua_dh_data *h; + unsigned long flags; + int err = SCSI_DH_OK; + + scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *) + + sizeof(*h) , GFP_KERNEL); + if (!scsi_dh_data) { + sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n", + ALUA_DH_NAME); + return -ENOMEM; + } + + scsi_dh_data->scsi_dh = &alua_dh; + h = (struct alua_dh_data *) scsi_dh_data->buf; + h->tpgs = TPGS_MODE_UNINITIALIZED; + h->state = TPGS_STATE_OPTIMIZED; + h->group_id = -1; + h->rel_port = -1; + h->buff = h->inq; + h->bufflen = ALUA_INQUIRY_SIZE; + + err = alua_initialize(sdev, h); + if (err != SCSI_DH_OK) + goto failed; + + if (!try_module_get(THIS_MODULE)) + goto failed; + + spin_lock_irqsave(sdev->request_queue->queue_lock, flags); + sdev->scsi_dh_data = scsi_dh_data; + spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); + + return 0; + +failed: + kfree(scsi_dh_data); + sdev_printk(KERN_ERR, sdev, "%s: not attached\n", ALUA_DH_NAME); + return -EINVAL; +} + +/* + * alua_bus_detach - Detach device handler + * @sdev: device to be detached from + */ +static void alua_bus_detach(struct scsi_device *sdev) +{ + struct scsi_dh_data *scsi_dh_data; + struct alua_dh_data *h; + unsigned long flags; + + spin_lock_irqsave(sdev->request_queue->queue_lock, flags); + scsi_dh_data = sdev->scsi_dh_data; + sdev->scsi_dh_data = NULL; + spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); + + h = (struct alua_dh_data *) scsi_dh_data->buf; + if (h->buff && h->inq != h->buff) + kfree(h->buff); + kfree(scsi_dh_data); + module_put(THIS_MODULE); + sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", ALUA_DH_NAME); +} + +static int __init alua_init(void) +{ + int r; + + r = scsi_register_device_handler(&alua_dh); + if (r != 0) + printk(KERN_ERR "%s: Failed to register scsi device handler", + ALUA_DH_NAME); + return r; +} + +static void __exit alua_exit(void) +{ + scsi_unregister_device_handler(&alua_dh); +} + +module_init(alua_init); +module_exit(alua_exit); + +MODULE_DESCRIPTION("DM Multipath ALUA support"); +MODULE_AUTHOR("Hannes Reinecke "); +MODULE_LICENSE("GPL"); +MODULE_VERSION(ALUA_DH_VER); -- cgit v1.2.1 From ae11b1b36da726a8a93409b896704edc6b4f3402 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Thu, 17 Jul 2008 17:49:02 -0700 Subject: [SCSI] scsi_dh: attach to hardware handler from dm-mpath multipath keeps a separate device table which may be more current than the built-in one. So we should make sure to always call ->attach whenever a multipath map with hardware handler is instantiated. And we should call ->detach on removal, too. [sekharan: update as per comments from agk] Signed-off-by: Hannes Reinecke Signed-off-by: Chandra Seetharaman Signed-off-by: James Bottomley --- drivers/md/dm-mpath.c | 13 +++++++ drivers/scsi/device_handler/scsi_dh.c | 64 +++++++++++++++++++++++++++++++++++ 2 files changed, 77 insertions(+) (limited to 'drivers') diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index fea966d66f98..71dd65aa31b6 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -147,9 +147,12 @@ static struct priority_group *alloc_priority_group(void) static void free_pgpaths(struct list_head *pgpaths, struct dm_target *ti) { struct pgpath *pgpath, *tmp; + struct multipath *m = ti->private; list_for_each_entry_safe(pgpath, tmp, pgpaths, list) { list_del(&pgpath->list); + if (m->hw_handler_name) + scsi_dh_detach(bdev_get_queue(pgpath->path.dev->bdev)); dm_put_device(ti, pgpath->path.dev); free_pgpath(pgpath); } @@ -548,6 +551,7 @@ static struct pgpath *parse_path(struct arg_set *as, struct path_selector *ps, { int r; struct pgpath *p; + struct multipath *m = ti->private; /* we need at least a path arg */ if (as->argc < 1) { @@ -566,6 +570,15 @@ static struct pgpath *parse_path(struct arg_set *as, struct path_selector *ps, goto bad; } + if (m->hw_handler_name) { + r = scsi_dh_attach(bdev_get_queue(p->path.dev->bdev), + m->hw_handler_name); + if (r < 0) { + dm_put_device(ti, p->path.dev); + goto bad; + } + } + r = ps->type->add_path(ps, &p->path, as->argc, as->argv, &ti->error); if (r) { dm_put_device(ti, p->path.dev); diff --git a/drivers/scsi/device_handler/scsi_dh.c b/drivers/scsi/device_handler/scsi_dh.c index e90df9dd3e65..a9159681ff27 100644 --- a/drivers/scsi/device_handler/scsi_dh.c +++ b/drivers/scsi/device_handler/scsi_dh.c @@ -369,6 +369,70 @@ int scsi_dh_handler_exist(const char *name) } EXPORT_SYMBOL_GPL(scsi_dh_handler_exist); +/* + * scsi_dh_handler_attach - Attach device handler + * @sdev - sdev the handler should be attached to + * @name - name of the handler to attach + */ +int scsi_dh_attach(struct request_queue *q, const char *name) +{ + unsigned long flags; + struct scsi_device *sdev; + struct scsi_device_handler *scsi_dh; + int err = 0; + + scsi_dh = get_device_handler(name); + if (!scsi_dh) + return -EINVAL; + + spin_lock_irqsave(q->queue_lock, flags); + sdev = q->queuedata; + if (!sdev || !get_device(&sdev->sdev_gendev)) + err = -ENODEV; + spin_unlock_irqrestore(q->queue_lock, flags); + + if (!err) { + err = scsi_dh_handler_attach(sdev, scsi_dh); + + put_device(&sdev->sdev_gendev); + } + return err; +} +EXPORT_SYMBOL_GPL(scsi_dh_attach); + +/* + * scsi_dh_handler_detach - Detach device handler + * @sdev - sdev the handler should be detached from + * + * This function will detach the device handler only + * if the sdev is not part of the internal list, ie + * if it has been attached manually. + */ +void scsi_dh_detach(struct request_queue *q) +{ + unsigned long flags; + struct scsi_device *sdev; + struct scsi_device_handler *scsi_dh = NULL; + + spin_lock_irqsave(q->queue_lock, flags); + sdev = q->queuedata; + if (!sdev || !get_device(&sdev->sdev_gendev)) + sdev = NULL; + spin_unlock_irqrestore(q->queue_lock, flags); + + if (!sdev) + return; + + if (sdev->scsi_dh_data) { + /* if sdev is not on internal list, detach */ + scsi_dh = sdev->scsi_dh_data->scsi_dh; + if (!device_handler_match(scsi_dh, sdev)) + scsi_dh_handler_detach(sdev, scsi_dh); + } + put_device(&sdev->sdev_gendev); +} +EXPORT_SYMBOL_GPL(scsi_dh_detach); + static struct notifier_block scsi_dh_nb = { .notifier_call = scsi_dh_notifier }; -- cgit v1.2.1 From 7c32c7a2d36c52d2b9ed040a9171364020ecc6a2 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Thu, 17 Jul 2008 16:53:33 -0700 Subject: [SCSI] scsi_dh: create lookup cache Create a cache of devices that are seen in a system. This will avoid the unnecessary traversal of the device list in the scsi_dh when there are multiple luns of a same type. Signed-off-by: Chandra Seetharaman Signed-off-by: Hannes Reinecke Signed-off-by: James Bottomley --- drivers/scsi/device_handler/scsi_dh.c | 129 +++++++++++++++++++++++++++------- 1 file changed, 105 insertions(+), 24 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/device_handler/scsi_dh.c b/drivers/scsi/device_handler/scsi_dh.c index a9159681ff27..a518f2eff19a 100644 --- a/drivers/scsi/device_handler/scsi_dh.c +++ b/drivers/scsi/device_handler/scsi_dh.c @@ -24,8 +24,16 @@ #include #include "../scsi_priv.h" +struct scsi_dh_devinfo_list { + struct list_head node; + char vendor[9]; + char model[17]; + struct scsi_device_handler *handler; +}; + static DEFINE_SPINLOCK(list_lock); static LIST_HEAD(scsi_dh_list); +static LIST_HEAD(scsi_dh_dev_list); static struct scsi_device_handler *get_device_handler(const char *name) { @@ -42,21 +50,94 @@ static struct scsi_device_handler *get_device_handler(const char *name) return found; } -static int device_handler_match(struct scsi_device_handler *tmp, - struct scsi_device *sdev) + +static struct scsi_device_handler * +scsi_dh_cache_lookup(struct scsi_device *sdev) { - int i; - - for(i = 0; tmp->devlist[i].vendor; i++) { - if (!strncmp(sdev->vendor, tmp->devlist[i].vendor, - strlen(tmp->devlist[i].vendor)) && - !strncmp(sdev->model, tmp->devlist[i].model, - strlen(tmp->devlist[i].model))) { - return 1; + struct scsi_dh_devinfo_list *tmp; + struct scsi_device_handler *found_dh = NULL; + + spin_lock(&list_lock); + list_for_each_entry(tmp, &scsi_dh_dev_list, node) { + if (!strncmp(sdev->vendor, tmp->vendor, strlen(tmp->vendor)) && + !strncmp(sdev->model, tmp->model, strlen(tmp->model))) { + found_dh = tmp->handler; + break; } } + spin_unlock(&list_lock); - return 0; + return found_dh; +} + +static int scsi_dh_handler_lookup(struct scsi_device_handler *scsi_dh, + struct scsi_device *sdev) +{ + int i, found = 0; + + for(i = 0; scsi_dh->devlist[i].vendor; i++) { + if (!strncmp(sdev->vendor, scsi_dh->devlist[i].vendor, + strlen(scsi_dh->devlist[i].vendor)) && + !strncmp(sdev->model, scsi_dh->devlist[i].model, + strlen(scsi_dh->devlist[i].model))) { + found = 1; + break; + } + } + return found; +} + +/* + * device_handler_match - Attach a device handler to a device + * @scsi_dh - The device handler to match against or NULL + * @sdev - SCSI device to be tested against @scsi_dh + * + * Tests @sdev against the device handler @scsi_dh or against + * all registered device_handler if @scsi_dh == NULL. + * Returns the found device handler or NULL if not found. + */ +static struct scsi_device_handler * +device_handler_match(struct scsi_device_handler *scsi_dh, + struct scsi_device *sdev) +{ + struct scsi_device_handler *found_dh = NULL; + struct scsi_dh_devinfo_list *tmp; + + found_dh = scsi_dh_cache_lookup(sdev); + if (found_dh) + return found_dh; + + if (scsi_dh) { + if (scsi_dh_handler_lookup(scsi_dh, sdev)) + found_dh = scsi_dh; + } else { + struct scsi_device_handler *tmp_dh; + + spin_lock(&list_lock); + list_for_each_entry(tmp_dh, &scsi_dh_list, list) { + if (scsi_dh_handler_lookup(tmp_dh, sdev)) + found_dh = tmp_dh; + } + spin_unlock(&list_lock); + } + + if (found_dh) { /* If device is found, add it to the cache */ + tmp = kmalloc(sizeof(*tmp), GFP_KERNEL); + if (tmp) { + strncpy(tmp->vendor, sdev->vendor, 8); + strncpy(tmp->model, sdev->model, 16); + tmp->vendor[8] = '\0'; + tmp->model[16] = '\0'; + tmp->handler = found_dh; + spin_lock(&list_lock); + list_add(&tmp->node, &scsi_dh_dev_list); + spin_unlock(&list_lock); + } else { + found_dh = NULL; + } + } + + return found_dh; } /* @@ -203,26 +284,18 @@ static int scsi_dh_notifier(struct notifier_block *nb, struct device *dev = data; struct scsi_device *sdev; int err = 0; - struct scsi_device_handler *tmp, *devinfo = NULL; + struct scsi_device_handler *devinfo = NULL; if (!scsi_is_sdev_device(dev)) return 0; sdev = to_scsi_device(dev); - spin_lock(&list_lock); - list_for_each_entry(tmp, &scsi_dh_list, list) { - if (device_handler_match(tmp, sdev)) { - devinfo = tmp; - break; - } - } - spin_unlock(&list_lock); - - if (!devinfo) - goto out; - if (action == BUS_NOTIFY_ADD_DEVICE) { + devinfo = device_handler_match(NULL, sdev); + if (!devinfo) + goto out; + err = scsi_dh_handler_attach(sdev, devinfo); if (!err) err = device_create_file(dev, &scsi_dh_state_attr); @@ -312,6 +385,8 @@ EXPORT_SYMBOL_GPL(scsi_register_device_handler); */ int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh) { + struct scsi_dh_devinfo_list *tmp, *pos; + if (!get_device_handler(scsi_dh->name)) return -ENODEV; @@ -320,6 +395,12 @@ int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh) spin_lock(&list_lock); list_del(&scsi_dh->list); + list_for_each_entry_safe(pos, tmp, &scsi_dh_dev_list, node) { + if (pos->handler == scsi_dh) { + list_del(&pos->node); + kfree(pos); + } + } spin_unlock(&list_lock); printk(KERN_INFO "%s: device handler unregistered\n", scsi_dh->name); -- cgit v1.2.1 From 4469f9878059f1707f021512e6b34252c4096ee7 Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Thu, 17 Jul 2008 04:28:30 -0400 Subject: [SCSI] Host protection capabilities Controllers that support protection information must indicate this to the SCSI midlayer so that the ULD can prepare scsi_cmnds accordingly. This patch implements a host mask and various types of protection: - DIF Type 1-3 (between HBA and disk) - DIX Type 0-3 (between OS and HBA) The patch also allows the HBA to set the guard type to something different than the T10-mandated CRC. Signed-off-by: Martin K. Petersen Signed-off-by: James Bottomley --- drivers/scsi/scsi_sysfs.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index b6e561059779..ab3c71869be5 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -249,6 +249,8 @@ shost_rd_attr(cmd_per_lun, "%hd\n"); shost_rd_attr(can_queue, "%hd\n"); shost_rd_attr(sg_tablesize, "%hu\n"); shost_rd_attr(unchecked_isa_dma, "%d\n"); +shost_rd_attr(prot_capabilities, "%u\n"); +shost_rd_attr(prot_guard_type, "%hd\n"); shost_rd_attr2(proc_name, hostt->proc_name, "%s\n"); static struct attribute *scsi_sysfs_shost_attrs[] = { @@ -263,6 +265,8 @@ static struct attribute *scsi_sysfs_shost_attrs[] = { &dev_attr_hstate.attr, &dev_attr_supported_mode.attr, &dev_attr_active_mode.attr, + &dev_attr_prot_capabilities.attr, + &dev_attr_prot_guard_type.attr, NULL }; -- cgit v1.2.1 From db007fc5e20c00b356e9ffe2d0e007398c65c837 Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Thu, 17 Jul 2008 04:28:31 -0400 Subject: [SCSI] Command protection operation Controllers that support DMA of protection information must be told explicitly how to handle the I/O. The controller has no knowledge of the protection capabilities of the target device so this information must be passed in the scsi_cmnd. - The protection operation tells the HBA whether to generate, strip or verify protection information. - The protection type tells the HBA which layout the target is formatted with. This is necessary because the controller must be able to correctly interpret the included protection information in order to verify it. - When a scsi_cmnd is reused for error handling the protection operation must be cleared and saved while error handling is in progress. - prot_op and prot_type are placed in an existing hole in scsi_cmnd and don't cause the structure to grow. Signed-off-by: Martin K. Petersen Signed-off-by: James Bottomley --- drivers/scsi/scsi_error.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 006a95916f72..a69397fd314a 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -664,7 +664,9 @@ void scsi_eh_prep_cmnd(struct scsi_cmnd *scmd, struct scsi_eh_save *ses, ses->sdb = scmd->sdb; ses->next_rq = scmd->request->next_rq; ses->result = scmd->result; + ses->prot_op = scmd->prot_op; + scmd->prot_op = SCSI_PROT_NORMAL; scmd->cmnd = ses->eh_cmnd; memset(scmd->cmnd, 0, BLK_MAX_CDB); memset(&scmd->sdb, 0, sizeof(scmd->sdb)); @@ -722,6 +724,7 @@ void scsi_eh_restore_cmnd(struct scsi_cmnd* scmd, struct scsi_eh_save *ses) scmd->sdb = ses->sdb; scmd->request->next_rq = ses->next_rq; scmd->result = ses->result; + scmd->prot_op = ses->prot_op; } EXPORT_SYMBOL(scsi_eh_restore_cmnd); -- cgit v1.2.1 From 7027ad72a689797475973c6feb5f0b673382f779 Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Thu, 17 Jul 2008 17:08:48 -0400 Subject: [SCSI] Support devices with protection information Implement support for DMA of protection information for devices that are data integrity capable. - Add support for mapping an extra scatter-gather list containing the protection information. - Allocate protection scsi_data_buffer if host is DIX (integrity DMA) capable. - Accessor function for checking whether a device has protection enabled. Signed-off-by: Martin K. Petersen Signed-off-by: James Bottomley --- drivers/scsi/scsi.c | 36 ++++++++++++++++++++++++++++++++++-- drivers/scsi/scsi_lib.c | 25 ++++++++++++++++++++++++- drivers/scsi/scsi_priv.h | 1 + 3 files changed, 59 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 5276e73c58fc..ee6be596503d 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -197,10 +197,42 @@ static void scsi_pool_free_command(struct scsi_host_cmd_pool *pool, struct scsi_cmnd *cmd) { + if (cmd->prot_sdb) + kmem_cache_free(scsi_sdb_cache, cmd->prot_sdb); + kmem_cache_free(pool->sense_slab, cmd->sense_buffer); kmem_cache_free(pool->cmd_slab, cmd); } +/** + * scsi_host_alloc_command - internal function to allocate command + * @shost: SCSI host whose pool to allocate from + * @gfp_mask: mask for the allocation + * + * Returns a fully allocated command with sense buffer and protection + * data buffer (where applicable) or NULL on failure + */ +static struct scsi_cmnd * +scsi_host_alloc_command(struct Scsi_Host *shost, gfp_t gfp_mask) +{ + struct scsi_cmnd *cmd; + + cmd = scsi_pool_alloc_command(shost->cmd_pool, gfp_mask); + if (!cmd) + return NULL; + + if (scsi_host_get_prot(shost) >= SHOST_DIX_TYPE0_PROTECTION) { + cmd->prot_sdb = kmem_cache_zalloc(scsi_sdb_cache, gfp_mask); + + if (!cmd->prot_sdb) { + scsi_pool_free_command(shost->cmd_pool, cmd); + return NULL; + } + } + + return cmd; +} + /** * __scsi_get_command - Allocate a struct scsi_cmnd * @shost: host to transmit command @@ -214,7 +246,7 @@ struct scsi_cmnd *__scsi_get_command(struct Scsi_Host *shost, gfp_t gfp_mask) struct scsi_cmnd *cmd; unsigned char *buf; - cmd = scsi_pool_alloc_command(shost->cmd_pool, gfp_mask); + cmd = scsi_host_alloc_command(shost, gfp_mask); if (unlikely(!cmd)) { unsigned long flags; @@ -457,7 +489,7 @@ int scsi_setup_command_freelist(struct Scsi_Host *shost) /* * Get one backup command for this host. */ - cmd = scsi_pool_alloc_command(shost->cmd_pool, gfp_mask); + cmd = scsi_host_alloc_command(shost, gfp_mask); if (!cmd) { scsi_put_host_cmd_pool(gfp_mask); shost->cmd_pool = NULL; diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index fe77ccacf319..a47c05d7829a 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -65,7 +65,7 @@ static struct scsi_host_sg_pool scsi_sg_pools[] = { }; #undef SP -static struct kmem_cache *scsi_sdb_cache; +struct kmem_cache *scsi_sdb_cache; static void scsi_run_queue(struct request_queue *q); @@ -787,6 +787,9 @@ void scsi_release_buffers(struct scsi_cmnd *cmd) kmem_cache_free(scsi_sdb_cache, bidi_sdb); cmd->request->next_rq->special = NULL; } + + if (scsi_prot_sg_count(cmd)) + scsi_free_sgtable(cmd->prot_sdb); } EXPORT_SYMBOL(scsi_release_buffers); @@ -1072,6 +1075,26 @@ int scsi_init_io(struct scsi_cmnd *cmd, gfp_t gfp_mask) goto err_exit; } + if (blk_integrity_rq(cmd->request)) { + struct scsi_data_buffer *prot_sdb = cmd->prot_sdb; + int ivecs, count; + + BUG_ON(prot_sdb == NULL); + ivecs = blk_rq_count_integrity_sg(cmd->request); + + if (scsi_alloc_sgtable(prot_sdb, ivecs, gfp_mask)) { + error = BLKPREP_DEFER; + goto err_exit; + } + + count = blk_rq_map_integrity_sg(cmd->request, + prot_sdb->table.sgl); + BUG_ON(unlikely(count > ivecs)); + + cmd->prot_sdb = prot_sdb; + cmd->prot_sdb->table.nents = count; + } + return BLKPREP_OK ; err_exit: diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h index b33e72516ef8..79f0f7511204 100644 --- a/drivers/scsi/scsi_priv.h +++ b/drivers/scsi/scsi_priv.h @@ -77,6 +77,7 @@ extern void scsi_exit_queue(void); struct request_queue; struct request; extern int scsi_prep_fn(struct request_queue *, struct request *); +extern struct kmem_cache *scsi_sdb_cache; /* scsi_proc.c */ #ifdef CONFIG_SCSI_PROC_FS -- cgit v1.2.1 From 511e44f42e3239a4df77b8e0e46d294d98a768ad Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Thu, 17 Jul 2008 04:28:33 -0400 Subject: [SCSI] Do not retry a request whose data integrity check failed If initiator or target reject the I/O due to DIF errors there is no point in retrying. Signed-off-by: Martin K. Petersen Signed-off-by: James Bottomley --- drivers/scsi/scsi_error.c | 3 +++ drivers/scsi/scsi_lib.c | 9 +++++++-- 2 files changed, 10 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index a69397fd314a..fc4b2d05f2e1 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -344,6 +344,9 @@ static int scsi_check_sense(struct scsi_cmnd *scmd) return /* soft_error */ SUCCESS; case ABORTED_COMMAND: + if (sshdr.asc == 0x10) /* DIF */ + return SUCCESS; + return NEEDS_RETRY; case NOT_READY: case UNIT_ATTENTION: diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index a47c05d7829a..a20730c48020 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -950,9 +950,14 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) * 6-byte command. */ scsi_requeue_command(q, cmd); - return; - } else { + } else if (sshdr.asc == 0x10) /* DIX */ + scsi_end_request(cmd, -EIO, this_count, 0); + else scsi_end_request(cmd, -EIO, this_count, 1); + return; + case ABORTED_COMMAND: + if (sshdr.asc == 0x10) { /* DIF */ + scsi_end_request(cmd, -EIO, this_count, 0); return; } break; -- cgit v1.2.1 From e0597d70012c82e16ee152270a55d89d8bf66693 Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Thu, 17 Jul 2008 04:28:34 -0400 Subject: [SCSI] sd: Identify DIF protection type and application tag ownership If a disk is formatted with protection information (Inquiry bit PROTECT=1) it is required to support Read Capacity(16). Force use of the 16-bit command in this case and extract the P_TYPE field which indicates whether the disk is formatted using DIF Type 1, 2 or 3. The ATO (App Tag Own) bit in the Control Mode Page indicates whether the storage device or the initiator own the contents of the DIF application tag. Signed-off-by: Martin K. Petersen Signed-off-by: James Bottomley --- drivers/scsi/sd.c | 122 ++++++++++++++++++++++++++++++++++++++++++++++++++++-- drivers/scsi/sd.h | 23 ++++++++++ 2 files changed, 141 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 99dddcae7851..56b9501d12f3 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -233,6 +233,24 @@ sd_show_allow_restart(struct device *dev, struct device_attribute *attr, return snprintf(buf, 40, "%d\n", sdkp->device->allow_restart); } +static ssize_t +sd_show_protection_type(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct scsi_disk *sdkp = to_scsi_disk(dev); + + return snprintf(buf, 20, "%u\n", sdkp->protection_type); +} + +static ssize_t +sd_show_app_tag_own(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct scsi_disk *sdkp = to_scsi_disk(dev); + + return snprintf(buf, 20, "%u\n", sdkp->ATO); +} + static struct device_attribute sd_disk_attrs[] = { __ATTR(cache_type, S_IRUGO|S_IWUSR, sd_show_cache_type, sd_store_cache_type), @@ -241,6 +259,8 @@ static struct device_attribute sd_disk_attrs[] = { sd_store_allow_restart), __ATTR(manage_start_stop, S_IRUGO|S_IWUSR, sd_show_manage_start_stop, sd_store_manage_start_stop), + __ATTR(protection_type, S_IRUGO, sd_show_protection_type, NULL), + __ATTR(app_tag_own, S_IRUGO, sd_show_app_tag_own, NULL), __ATTR_NULL, }; @@ -1164,6 +1184,49 @@ sd_spinup_disk(struct scsi_disk *sdkp) } } + +/* + * Determine whether disk supports Data Integrity Field. + */ +void sd_read_protection_type(struct scsi_disk *sdkp, unsigned char *buffer) +{ + struct scsi_device *sdp = sdkp->device; + u8 type; + + if (scsi_device_protection(sdp) == 0 || (buffer[12] & 1) == 0) + type = 0; + else + type = ((buffer[12] >> 1) & 7) + 1; /* P_TYPE 0 = Type 1 */ + + switch (type) { + case SD_DIF_TYPE0_PROTECTION: + sdkp->protection_type = 0; + break; + + case SD_DIF_TYPE1_PROTECTION: + case SD_DIF_TYPE3_PROTECTION: + sdkp->protection_type = type; + break; + + case SD_DIF_TYPE2_PROTECTION: + sd_printk(KERN_ERR, sdkp, "formatted with DIF Type 2 " \ + "protection which is currently unsupported. " \ + "Disabling disk!\n"); + goto disable; + + default: + sd_printk(KERN_ERR, sdkp, "formatted with unknown " \ + "protection type %d. Disabling disk!\n", type); + goto disable; + } + + return; + +disable: + sdkp->protection_type = 0; + sdkp->capacity = 0; +} + /* * read disk capacity */ @@ -1173,7 +1236,8 @@ sd_read_capacity(struct scsi_disk *sdkp, unsigned char *buffer) unsigned char cmd[16]; int the_result, retries; int sector_size = 0; - int longrc = 0; + /* Force READ CAPACITY(16) when PROTECT=1 */ + int longrc = scsi_device_protection(sdkp->device) ? 1 : 0; struct scsi_sense_hdr sshdr; int sense_valid = 0; struct scsi_device *sdp = sdkp->device; @@ -1185,8 +1249,8 @@ repeat: memset((void *) cmd, 0, 16); cmd[0] = SERVICE_ACTION_IN; cmd[1] = SAI_READ_CAPACITY_16; - cmd[13] = 12; - memset((void *) buffer, 0, 12); + cmd[13] = 13; + memset((void *) buffer, 0, 13); } else { cmd[0] = READ_CAPACITY; memset((void *) &cmd[1], 0, 9); @@ -1194,7 +1258,7 @@ repeat: } the_result = scsi_execute_req(sdp, cmd, DMA_FROM_DEVICE, - buffer, longrc ? 12 : 8, &sshdr, + buffer, longrc ? 13 : 8, &sshdr, SD_TIMEOUT, SD_MAX_RETRIES); if (media_not_present(sdkp, &sshdr)) @@ -1269,6 +1333,8 @@ repeat: sector_size = (buffer[8] << 24) | (buffer[9] << 16) | (buffer[10] << 8) | buffer[11]; + + sd_read_protection_type(sdkp, buffer); } /* Some devices return the total number of sectors, not the @@ -1530,6 +1596,52 @@ defaults: sdkp->DPOFUA = 0; } +/* + * The ATO bit indicates whether the DIF application tag is available + * for use by the operating system. + */ +void sd_read_app_tag_own(struct scsi_disk *sdkp, unsigned char *buffer) +{ + int res, offset; + struct scsi_device *sdp = sdkp->device; + struct scsi_mode_data data; + struct scsi_sense_hdr sshdr; + + if (sdp->type != TYPE_DISK) + return; + + if (sdkp->protection_type == 0) + return; + + res = scsi_mode_sense(sdp, 1, 0x0a, buffer, 36, SD_TIMEOUT, + SD_MAX_RETRIES, &data, &sshdr); + + if (!scsi_status_is_good(res) || !data.header_length || + data.length < 6) { + sd_printk(KERN_WARNING, sdkp, + "getting Control mode page failed, assume no ATO\n"); + + if (scsi_sense_valid(&sshdr)) + sd_print_sense_hdr(sdkp, &sshdr); + + return; + } + + offset = data.header_length + data.block_descriptor_length; + + if ((buffer[offset] & 0x3f) != 0x0a) { + sd_printk(KERN_ERR, sdkp, "ATO Got wrong page\n"); + return; + } + + if ((buffer[offset + 5] & 0x80) == 0) + return; + + sdkp->ATO = 1; + + return; +} + /** * sd_revalidate_disk - called the first time a new disk is seen, * performs disk spin up, read_capacity, etc. @@ -1566,6 +1678,7 @@ static int sd_revalidate_disk(struct gendisk *disk) sdkp->write_prot = 0; sdkp->WCE = 0; sdkp->RCD = 0; + sdkp->ATO = 0; sd_spinup_disk(sdkp); @@ -1577,6 +1690,7 @@ static int sd_revalidate_disk(struct gendisk *disk) sd_read_capacity(sdkp, buffer); sd_read_write_protect_flag(sdkp, buffer); sd_read_cache_type(sdkp, buffer); + sd_read_app_tag_own(sdkp, buffer); } /* diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h index 03a3d45cfa42..86b18d4170fe 100644 --- a/drivers/scsi/sd.h +++ b/drivers/scsi/sd.h @@ -41,7 +41,9 @@ struct scsi_disk { u32 index; u8 media_present; u8 write_prot; + u8 protection_type;/* Data Integrity Field */ unsigned previous_state : 1; + unsigned ATO : 1; /* state of disk ATO bit */ unsigned WCE : 1; /* state of disk WCE bit */ unsigned RCD : 1; /* state of disk RCD bit, unused */ unsigned DPOFUA : 1; /* state of disk DPOFUA bit */ @@ -59,4 +61,25 @@ static inline struct scsi_disk *scsi_disk(struct gendisk *disk) (sdsk)->disk->disk_name, ##a) : \ sdev_printk(prefix, (sdsk)->device, fmt, ##a) +/* + * A DIF-capable target device can be formatted with different + * protection schemes. Currently 0 through 3 are defined: + * + * Type 0 is regular (unprotected) I/O + * + * Type 1 defines the contents of the guard and reference tags + * + * Type 2 defines the contents of the guard and reference tags and + * uses 32-byte commands to seed the latter + * + * Type 3 defines the contents of the guard tag only + */ + +enum sd_dif_target_protection_types { + SD_DIF_TYPE0_PROTECTION = 0x0, + SD_DIF_TYPE1_PROTECTION = 0x1, + SD_DIF_TYPE2_PROTECTION = 0x2, + SD_DIF_TYPE3_PROTECTION = 0x3, +}; + #endif /* _SCSI_DISK_H */ -- cgit v1.2.1 From af55ff675a8461da6a632320710b050af4366e0c Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Thu, 17 Jul 2008 04:28:35 -0400 Subject: [SCSI] sd: Support for SCSI disk (SBC) Data Integrity Field Support for controllers and disks that implement DIF protection information: - During command preparation the RDPROTECT/WRPROTECT must be set correctly if the target has DIF enabled. - READ(6) and WRITE(6) are not supported when DIF is on. - The controller must be told how to handle the I/O via the protection operation field in scsi_cmnd. - Refactor the I/O completion code that extracts failed LBA from the returned sense data and handle DIF failures correctly. - sd_dif.c implements the functions required to prepare and complete requests with protection information attached. Signed-off-by: Martin K. Petersen Signed-off-by: James Bottomley --- drivers/scsi/Kconfig | 1 + drivers/scsi/Makefile | 2 + drivers/scsi/sd.c | 121 ++++++++---- drivers/scsi/sd.h | 25 +++ drivers/scsi/sd_dif.c | 538 ++++++++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 647 insertions(+), 40 deletions(-) create mode 100644 drivers/scsi/sd_dif.c (limited to 'drivers') diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index 26be540d1dd3..c7f06298bd3c 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -63,6 +63,7 @@ comment "SCSI support type (disk, tape, CD-ROM)" config BLK_DEV_SD tristate "SCSI disk support" depends on SCSI + select CRC_T10DIF ---help--- If you want to use SCSI hard disks, Fibre Channel disks, Serial ATA (SATA) or Parallel ATA (PATA) hard disks, diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile index a8149677de23..72fd5043cfa1 100644 --- a/drivers/scsi/Makefile +++ b/drivers/scsi/Makefile @@ -151,6 +151,8 @@ scsi_mod-$(CONFIG_SCSI_PROC_FS) += scsi_proc.o scsi_tgt-y += scsi_tgt_lib.o scsi_tgt_if.o sd_mod-objs := sd.o +sd_mod-$(CONFIG_BLK_DEV_INTEGRITY) += sd_dif.o + sr_mod-objs := sr.o sr_ioctl.o sr_vendor.o ncr53c8xx-flags-$(CONFIG_SCSI_ZALON) \ := -DCONFIG_NCR53C8XX_PREFETCH -DSCSI_NCR_BIG_ENDIAN \ diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 56b9501d12f3..8e08d51a0f05 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -373,6 +373,7 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq) struct scsi_cmnd *SCpnt; struct scsi_device *sdp = q->queuedata; struct gendisk *disk = rq->rq_disk; + struct scsi_disk *sdkp; sector_t block = rq->sector; unsigned int this_count = rq->nr_sectors; unsigned int timeout = sdp->timeout; @@ -389,6 +390,7 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq) if (ret != BLKPREP_OK) goto out; SCpnt = rq->special; + sdkp = scsi_disk(disk); /* from here on until we're complete, any goto out * is used for a killable error condition */ @@ -478,6 +480,11 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq) } SCpnt->cmnd[0] = WRITE_6; SCpnt->sc_data_direction = DMA_TO_DEVICE; + + if (blk_integrity_rq(rq) && + sd_dif_prepare(rq, block, sdp->sector_size) == -EIO) + goto out; + } else if (rq_data_dir(rq) == READ) { SCpnt->cmnd[0] = READ_6; SCpnt->sc_data_direction = DMA_FROM_DEVICE; @@ -492,8 +499,12 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq) "writing" : "reading", this_count, rq->nr_sectors)); - SCpnt->cmnd[1] = 0; - + /* Set RDPROTECT/WRPROTECT if disk is formatted with DIF */ + if (scsi_host_dif_capable(sdp->host, sdkp->protection_type)) + SCpnt->cmnd[1] = 1 << 5; + else + SCpnt->cmnd[1] = 0; + if (block > 0xffffffff) { SCpnt->cmnd[0] += READ_16 - READ_6; SCpnt->cmnd[1] |= blk_fua_rq(rq) ? 0x8 : 0; @@ -511,6 +522,7 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq) SCpnt->cmnd[13] = (unsigned char) this_count & 0xff; SCpnt->cmnd[14] = SCpnt->cmnd[15] = 0; } else if ((this_count > 0xff) || (block > 0x1fffff) || + scsi_device_protection(SCpnt->device) || SCpnt->device->use_10_for_rw) { if (this_count > 0xffff) this_count = 0xffff; @@ -545,6 +557,10 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq) } SCpnt->sdb.length = this_count * sdp->sector_size; + /* If DIF or DIX is enabled, tell HBA how to handle request */ + if (sdkp->protection_type || scsi_prot_sg_count(SCpnt)) + sd_dif_op(SCpnt, sdkp->protection_type, scsi_prot_sg_count(SCpnt)); + /* * We shouldn't disconnect in the middle of a sector, so with a dumb * host adapter, it's safe to assume that we can at least transfer @@ -939,6 +955,48 @@ static struct block_device_operations sd_fops = { .revalidate_disk = sd_revalidate_disk, }; +static unsigned int sd_completed_bytes(struct scsi_cmnd *scmd) +{ + u64 start_lba = scmd->request->sector; + u64 end_lba = scmd->request->sector + (scsi_bufflen(scmd) / 512); + u64 bad_lba; + int info_valid; + + if (!blk_fs_request(scmd->request)) + return 0; + + info_valid = scsi_get_sense_info_fld(scmd->sense_buffer, + SCSI_SENSE_BUFFERSIZE, + &bad_lba); + if (!info_valid) + return 0; + + if (scsi_bufflen(scmd) <= scmd->device->sector_size) + return 0; + + if (scmd->device->sector_size < 512) { + /* only legitimate sector_size here is 256 */ + start_lba <<= 1; + end_lba <<= 1; + } else { + /* be careful ... don't want any overflows */ + u64 factor = scmd->device->sector_size / 512; + do_div(start_lba, factor); + do_div(end_lba, factor); + } + + /* The bad lba was reported incorrectly, we have no idea where + * the error is. + */ + if (bad_lba < start_lba || bad_lba >= end_lba) + return 0; + + /* This computation should always be done in terms of + * the resolution of the device's medium. + */ + return (bad_lba - start_lba) * scmd->device->sector_size; +} + /** * sd_done - bottom half handler: called when the lower level * driver has completed (successfully or otherwise) a scsi command. @@ -949,15 +1007,10 @@ static struct block_device_operations sd_fops = { static int sd_done(struct scsi_cmnd *SCpnt) { int result = SCpnt->result; - unsigned int xfer_size = scsi_bufflen(SCpnt); - unsigned int good_bytes = result ? 0 : xfer_size; - u64 start_lba = SCpnt->request->sector; - u64 end_lba = SCpnt->request->sector + (xfer_size / 512); - u64 bad_lba; + unsigned int good_bytes = result ? 0 : scsi_bufflen(SCpnt); struct scsi_sense_hdr sshdr; int sense_valid = 0; int sense_deferred = 0; - int info_valid; if (result) { sense_valid = scsi_command_normalize_sense(SCpnt, &sshdr); @@ -982,36 +1035,7 @@ static int sd_done(struct scsi_cmnd *SCpnt) switch (sshdr.sense_key) { case HARDWARE_ERROR: case MEDIUM_ERROR: - if (!blk_fs_request(SCpnt->request)) - goto out; - info_valid = scsi_get_sense_info_fld(SCpnt->sense_buffer, - SCSI_SENSE_BUFFERSIZE, - &bad_lba); - if (!info_valid) - goto out; - if (xfer_size <= SCpnt->device->sector_size) - goto out; - if (SCpnt->device->sector_size < 512) { - /* only legitimate sector_size here is 256 */ - start_lba <<= 1; - end_lba <<= 1; - } else { - /* be careful ... don't want any overflows */ - u64 factor = SCpnt->device->sector_size / 512; - do_div(start_lba, factor); - do_div(end_lba, factor); - } - - if (bad_lba < start_lba || bad_lba >= end_lba) - /* the bad lba was reported incorrectly, we have - * no idea where the error is - */ - goto out; - - /* This computation should always be done in terms of - * the resolution of the device's medium. - */ - good_bytes = (bad_lba - start_lba)*SCpnt->device->sector_size; + good_bytes = sd_completed_bytes(SCpnt); break; case RECOVERED_ERROR: case NO_SENSE: @@ -1021,10 +1045,23 @@ static int sd_done(struct scsi_cmnd *SCpnt) scsi_print_sense("sd", SCpnt); SCpnt->result = 0; memset(SCpnt->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); - good_bytes = xfer_size; + good_bytes = scsi_bufflen(SCpnt); + break; + case ABORTED_COMMAND: + if (sshdr.asc == 0x10) { /* DIF: Disk detected corruption */ + scsi_print_result(SCpnt); + scsi_print_sense("sd", SCpnt); + good_bytes = sd_completed_bytes(SCpnt); + } break; case ILLEGAL_REQUEST: - if (SCpnt->device->use_10_for_rw && + if (sshdr.asc == 0x10) { /* DIX: HBA detected corruption */ + scsi_print_result(SCpnt); + scsi_print_sense("sd", SCpnt); + good_bytes = sd_completed_bytes(SCpnt); + } + if (!scsi_device_protection(SCpnt->device) && + SCpnt->device->use_10_for_rw && (SCpnt->cmnd[0] == READ_10 || SCpnt->cmnd[0] == WRITE_10)) SCpnt->device->use_10_for_rw = 0; @@ -1037,6 +1074,9 @@ static int sd_done(struct scsi_cmnd *SCpnt) break; } out: + if (rq_data_dir(SCpnt->request) == READ && scsi_prot_sg_count(SCpnt)) + sd_dif_complete(SCpnt, good_bytes); + return good_bytes; } @@ -1826,6 +1866,7 @@ static int sd_probe(struct device *dev) dev_set_drvdata(dev, sdkp); add_disk(gd); + sd_dif_config_host(sdkp); sd_printk(KERN_NOTICE, sdkp, "Attached SCSI %sdisk\n", sdp->removable ? "removable " : ""); diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h index 86b18d4170fe..550b2f70a1f8 100644 --- a/drivers/scsi/sd.h +++ b/drivers/scsi/sd.h @@ -82,4 +82,29 @@ enum sd_dif_target_protection_types { SD_DIF_TYPE3_PROTECTION = 0x3, }; +/* + * Data Integrity Field tuple. + */ +struct sd_dif_tuple { + __be16 guard_tag; /* Checksum */ + __be16 app_tag; /* Opaque storage */ + __be32 ref_tag; /* Target LBA or indirect LBA */ +}; + +#if defined(CONFIG_BLK_DEV_INTEGRITY) + +extern void sd_dif_op(struct scsi_cmnd *, unsigned int, unsigned int); +extern void sd_dif_config_host(struct scsi_disk *); +extern int sd_dif_prepare(struct request *rq, sector_t, unsigned int); +extern void sd_dif_complete(struct scsi_cmnd *, unsigned int); + +#else /* CONFIG_BLK_DEV_INTEGRITY */ + +#define sd_dif_op(a, b, c) do { } while (0) +#define sd_dif_config_host(a) do { } while (0) +#define sd_dif_prepare(a, b, c) (0) +#define sd_dif_complete(a, b) (0) + +#endif /* CONFIG_BLK_DEV_INTEGRITY */ + #endif /* _SCSI_DISK_H */ diff --git a/drivers/scsi/sd_dif.c b/drivers/scsi/sd_dif.c new file mode 100644 index 000000000000..4d17f3d35aac --- /dev/null +++ b/drivers/scsi/sd_dif.c @@ -0,0 +1,538 @@ +/* + * sd_dif.c - SCSI Data Integrity Field + * + * Copyright (C) 2007, 2008 Oracle Corporation + * Written by: Martin K. Petersen + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, + * USA. + * + */ + +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "sd.h" + +typedef __u16 (csum_fn) (void *, unsigned int); + +static __u16 sd_dif_crc_fn(void *data, unsigned int len) +{ + return cpu_to_be16(crc_t10dif(data, len)); +} + +static __u16 sd_dif_ip_fn(void *data, unsigned int len) +{ + return ip_compute_csum(data, len); +} + +/* + * Type 1 and Type 2 protection use the same format: 16 bit guard tag, + * 16 bit app tag, 32 bit reference tag. + */ +static void sd_dif_type1_generate(struct blk_integrity_exchg *bix, csum_fn *fn) +{ + void *buf = bix->data_buf; + struct sd_dif_tuple *sdt = bix->prot_buf; + sector_t sector = bix->sector; + unsigned int i; + + for (i = 0 ; i < bix->data_size ; i += bix->sector_size, sdt++) { + sdt->guard_tag = fn(buf, bix->sector_size); + sdt->ref_tag = cpu_to_be32(sector & 0xffffffff); + sdt->app_tag = 0; + + buf += bix->sector_size; + sector++; + } +} + +static void sd_dif_type1_generate_crc(struct blk_integrity_exchg *bix) +{ + sd_dif_type1_generate(bix, sd_dif_crc_fn); +} + +static void sd_dif_type1_generate_ip(struct blk_integrity_exchg *bix) +{ + sd_dif_type1_generate(bix, sd_dif_ip_fn); +} + +static int sd_dif_type1_verify(struct blk_integrity_exchg *bix, csum_fn *fn) +{ + void *buf = bix->data_buf; + struct sd_dif_tuple *sdt = bix->prot_buf; + sector_t sector = bix->sector; + unsigned int i; + __u16 csum; + + for (i = 0 ; i < bix->data_size ; i += bix->sector_size, sdt++) { + /* Unwritten sectors */ + if (sdt->app_tag == 0xffff) + return 0; + + /* Bad ref tag received from disk */ + if (sdt->ref_tag == 0xffffffff) { + printk(KERN_ERR + "%s: bad phys ref tag on sector %lu\n", + bix->disk_name, (unsigned long)sector); + return -EIO; + } + + if (be32_to_cpu(sdt->ref_tag) != (sector & 0xffffffff)) { + printk(KERN_ERR + "%s: ref tag error on sector %lu (rcvd %u)\n", + bix->disk_name, (unsigned long)sector, + be32_to_cpu(sdt->ref_tag)); + return -EIO; + } + + csum = fn(buf, bix->sector_size); + + if (sdt->guard_tag != csum) { + printk(KERN_ERR "%s: guard tag error on sector %lu " \ + "(rcvd %04x, data %04x)\n", bix->disk_name, + (unsigned long)sector, + be16_to_cpu(sdt->guard_tag), be16_to_cpu(csum)); + return -EIO; + } + + buf += bix->sector_size; + sector++; + } + + return 0; +} + +static int sd_dif_type1_verify_crc(struct blk_integrity_exchg *bix) +{ + return sd_dif_type1_verify(bix, sd_dif_crc_fn); +} + +static int sd_dif_type1_verify_ip(struct blk_integrity_exchg *bix) +{ + return sd_dif_type1_verify(bix, sd_dif_ip_fn); +} + +/* + * Functions for interleaving and deinterleaving application tags + */ +static void sd_dif_type1_set_tag(void *prot, void *tag_buf, unsigned int sectors) +{ + struct sd_dif_tuple *sdt = prot; + char *tag = tag_buf; + unsigned int i, j; + + for (i = 0, j = 0 ; i < sectors ; i++, j += 2, sdt++) { + sdt->app_tag = tag[j] << 8 | tag[j+1]; + BUG_ON(sdt->app_tag == 0xffff); + } +} + +static void sd_dif_type1_get_tag(void *prot, void *tag_buf, unsigned int sectors) +{ + struct sd_dif_tuple *sdt = prot; + char *tag = tag_buf; + unsigned int i, j; + + for (i = 0, j = 0 ; i < sectors ; i++, j += 2, sdt++) { + tag[j] = (sdt->app_tag & 0xff00) >> 8; + tag[j+1] = sdt->app_tag & 0xff; + } +} + +static struct blk_integrity dif_type1_integrity_crc = { + .name = "T10-DIF-TYPE1-CRC", + .generate_fn = sd_dif_type1_generate_crc, + .verify_fn = sd_dif_type1_verify_crc, + .get_tag_fn = sd_dif_type1_get_tag, + .set_tag_fn = sd_dif_type1_set_tag, + .tuple_size = sizeof(struct sd_dif_tuple), + .tag_size = 0, +}; + +static struct blk_integrity dif_type1_integrity_ip = { + .name = "T10-DIF-TYPE1-IP", + .generate_fn = sd_dif_type1_generate_ip, + .verify_fn = sd_dif_type1_verify_ip, + .get_tag_fn = sd_dif_type1_get_tag, + .set_tag_fn = sd_dif_type1_set_tag, + .tuple_size = sizeof(struct sd_dif_tuple), + .tag_size = 0, +}; + + +/* + * Type 3 protection has a 16-bit guard tag and 16 + 32 bits of opaque + * tag space. + */ +static void sd_dif_type3_generate(struct blk_integrity_exchg *bix, csum_fn *fn) +{ + void *buf = bix->data_buf; + struct sd_dif_tuple *sdt = bix->prot_buf; + unsigned int i; + + for (i = 0 ; i < bix->data_size ; i += bix->sector_size, sdt++) { + sdt->guard_tag = fn(buf, bix->sector_size); + sdt->ref_tag = 0; + sdt->app_tag = 0; + + buf += bix->sector_size; + } +} + +static void sd_dif_type3_generate_crc(struct blk_integrity_exchg *bix) +{ + sd_dif_type3_generate(bix, sd_dif_crc_fn); +} + +static void sd_dif_type3_generate_ip(struct blk_integrity_exchg *bix) +{ + sd_dif_type3_generate(bix, sd_dif_ip_fn); +} + +static int sd_dif_type3_verify(struct blk_integrity_exchg *bix, csum_fn *fn) +{ + void *buf = bix->data_buf; + struct sd_dif_tuple *sdt = bix->prot_buf; + sector_t sector = bix->sector; + unsigned int i; + __u16 csum; + + for (i = 0 ; i < bix->data_size ; i += bix->sector_size, sdt++) { + /* Unwritten sectors */ + if (sdt->app_tag == 0xffff && sdt->ref_tag == 0xffffffff) + return 0; + + csum = fn(buf, bix->sector_size); + + if (sdt->guard_tag != csum) { + printk(KERN_ERR "%s: guard tag error on sector %lu " \ + "(rcvd %04x, data %04x)\n", bix->disk_name, + (unsigned long)sector, + be16_to_cpu(sdt->guard_tag), be16_to_cpu(csum)); + return -EIO; + } + + buf += bix->sector_size; + sector++; + } + + return 0; +} + +static int sd_dif_type3_verify_crc(struct blk_integrity_exchg *bix) +{ + return sd_dif_type3_verify(bix, sd_dif_crc_fn); +} + +static int sd_dif_type3_verify_ip(struct blk_integrity_exchg *bix) +{ + return sd_dif_type3_verify(bix, sd_dif_ip_fn); +} + +static void sd_dif_type3_set_tag(void *prot, void *tag_buf, unsigned int sectors) +{ + struct sd_dif_tuple *sdt = prot; + char *tag = tag_buf; + unsigned int i, j; + + for (i = 0, j = 0 ; i < sectors ; i++, j += 6, sdt++) { + sdt->app_tag = tag[j] << 8 | tag[j+1]; + sdt->ref_tag = tag[j+2] << 24 | tag[j+3] << 16 | + tag[j+4] << 8 | tag[j+5]; + } +} + +static void sd_dif_type3_get_tag(void *prot, void *tag_buf, unsigned int sectors) +{ + struct sd_dif_tuple *sdt = prot; + char *tag = tag_buf; + unsigned int i, j; + + for (i = 0, j = 0 ; i < sectors ; i++, j += 2, sdt++) { + tag[j] = (sdt->app_tag & 0xff00) >> 8; + tag[j+1] = sdt->app_tag & 0xff; + tag[j+2] = (sdt->ref_tag & 0xff000000) >> 24; + tag[j+3] = (sdt->ref_tag & 0xff0000) >> 16; + tag[j+4] = (sdt->ref_tag & 0xff00) >> 8; + tag[j+5] = sdt->ref_tag & 0xff; + BUG_ON(sdt->app_tag == 0xffff || sdt->ref_tag == 0xffffffff); + } +} + +static struct blk_integrity dif_type3_integrity_crc = { + .name = "T10-DIF-TYPE3-CRC", + .generate_fn = sd_dif_type3_generate_crc, + .verify_fn = sd_dif_type3_verify_crc, + .get_tag_fn = sd_dif_type3_get_tag, + .set_tag_fn = sd_dif_type3_set_tag, + .tuple_size = sizeof(struct sd_dif_tuple), + .tag_size = 0, +}; + +static struct blk_integrity dif_type3_integrity_ip = { + .name = "T10-DIF-TYPE3-IP", + .generate_fn = sd_dif_type3_generate_ip, + .verify_fn = sd_dif_type3_verify_ip, + .get_tag_fn = sd_dif_type3_get_tag, + .set_tag_fn = sd_dif_type3_set_tag, + .tuple_size = sizeof(struct sd_dif_tuple), + .tag_size = 0, +}; + +/* + * Configure exchange of protection information between OS and HBA. + */ +void sd_dif_config_host(struct scsi_disk *sdkp) +{ + struct scsi_device *sdp = sdkp->device; + struct gendisk *disk = sdkp->disk; + u8 type = sdkp->protection_type; + + /* If this HBA doesn't support DIX, resort to normal I/O or DIF */ + if (scsi_host_dix_capable(sdp->host, type) == 0) { + + if (type == SD_DIF_TYPE0_PROTECTION) + return; + + if (scsi_host_dif_capable(sdp->host, type) == 0) { + sd_printk(KERN_INFO, sdkp, "Type %d protection " \ + "unsupported by HBA. Disabling DIF.\n", type); + sdkp->protection_type = 0; + return; + } + + sd_printk(KERN_INFO, sdkp, "Enabling DIF Type %d protection\n", + type); + + return; + } + + /* Enable DMA of protection information */ + if (scsi_host_get_guard(sdkp->device->host) & SHOST_DIX_GUARD_IP) + if (type == SD_DIF_TYPE3_PROTECTION) + blk_integrity_register(disk, &dif_type3_integrity_ip); + else + blk_integrity_register(disk, &dif_type1_integrity_ip); + else + if (type == SD_DIF_TYPE3_PROTECTION) + blk_integrity_register(disk, &dif_type3_integrity_crc); + else + blk_integrity_register(disk, &dif_type1_integrity_crc); + + sd_printk(KERN_INFO, sdkp, + "Enabling %s integrity protection\n", disk->integrity->name); + + /* Signal to block layer that we support sector tagging */ + if (type && sdkp->ATO) { + if (type == SD_DIF_TYPE3_PROTECTION) + disk->integrity->tag_size = sizeof(u16) + sizeof(u32); + else + disk->integrity->tag_size = sizeof(u16); + + sd_printk(KERN_INFO, sdkp, "DIF application tag size %u\n", + disk->integrity->tag_size); + } +} + +/* + * DIF DMA operation magic decoder ring. + */ +void sd_dif_op(struct scsi_cmnd *scmd, unsigned int dif, unsigned int dix) +{ + int csum_convert, prot_op; + + prot_op = 0; + + /* Convert checksum? */ + if (scsi_host_get_guard(scmd->device->host) != SHOST_DIX_GUARD_CRC) + csum_convert = 1; + else + csum_convert = 0; + + switch (scmd->cmnd[0]) { + case READ_10: + case READ_12: + case READ_16: + if (dif && dix) + if (csum_convert) + prot_op = SCSI_PROT_READ_CONVERT; + else + prot_op = SCSI_PROT_READ_PASS; + else if (dif && !dix) + prot_op = SCSI_PROT_READ_STRIP; + else if (!dif && dix) + prot_op = SCSI_PROT_READ_INSERT; + + break; + + case WRITE_10: + case WRITE_12: + case WRITE_16: + if (dif && dix) + if (csum_convert) + prot_op = SCSI_PROT_WRITE_CONVERT; + else + prot_op = SCSI_PROT_WRITE_PASS; + else if (dif && !dix) + prot_op = SCSI_PROT_WRITE_INSERT; + else if (!dif && dix) + prot_op = SCSI_PROT_WRITE_STRIP; + + break; + } + + scsi_set_prot_op(scmd, prot_op); + scsi_set_prot_type(scmd, dif); +} + +/* + * The virtual start sector is the one that was originally submitted + * by the block layer. Due to partitioning, MD/DM cloning, etc. the + * actual physical start sector is likely to be different. Remap + * protection information to match the physical LBA. + * + * From a protocol perspective there's a slight difference between + * Type 1 and 2. The latter uses 32-byte CDBs exclusively, and the + * reference tag is seeded in the CDB. This gives us the potential to + * avoid virt->phys remapping during write. However, at read time we + * don't know whether the virt sector is the same as when we wrote it + * (we could be reading from real disk as opposed to MD/DM device. So + * we always remap Type 2 making it identical to Type 1. + * + * Type 3 does not have a reference tag so no remapping is required. + */ +int sd_dif_prepare(struct request *rq, sector_t hw_sector, unsigned int sector_sz) +{ + const int tuple_sz = sizeof(struct sd_dif_tuple); + struct bio *bio; + struct scsi_disk *sdkp; + struct sd_dif_tuple *sdt; + unsigned int i, j; + u32 phys, virt; + + /* Already remapped? */ + if (rq->cmd_flags & REQ_INTEGRITY) + return 0; + + sdkp = rq->bio->bi_bdev->bd_disk->private_data; + + if (sdkp->protection_type == SD_DIF_TYPE3_PROTECTION) + return 0; + + rq->cmd_flags |= REQ_INTEGRITY; + phys = hw_sector & 0xffffffff; + + __rq_for_each_bio(bio, rq) { + struct bio_vec *iv; + + virt = bio->bi_integrity->bip_sector & 0xffffffff; + + bip_for_each_vec(iv, bio->bi_integrity, i) { + sdt = kmap_atomic(iv->bv_page, KM_USER0) + + iv->bv_offset; + + for (j = 0 ; j < iv->bv_len ; j += tuple_sz, sdt++) { + + if (be32_to_cpu(sdt->ref_tag) != virt) + goto error; + + sdt->ref_tag = cpu_to_be32(phys); + virt++; + phys++; + } + + kunmap_atomic(sdt, KM_USER0); + } + } + + return 0; + +error: + kunmap_atomic(sdt, KM_USER0); + sd_printk(KERN_ERR, sdkp, "%s: virt %u, phys %u, ref %u\n", + __func__, virt, phys, be32_to_cpu(sdt->ref_tag)); + + return -EIO; +} + +/* + * Remap physical sector values in the reference tag to the virtual + * values expected by the block layer. + */ +void sd_dif_complete(struct scsi_cmnd *scmd, unsigned int good_bytes) +{ + const int tuple_sz = sizeof(struct sd_dif_tuple); + struct scsi_disk *sdkp; + struct bio *bio; + struct sd_dif_tuple *sdt; + unsigned int i, j, sectors, sector_sz; + u32 phys, virt; + + sdkp = scsi_disk(scmd->request->rq_disk); + + if (sdkp->protection_type == SD_DIF_TYPE3_PROTECTION || good_bytes == 0) + return; + + sector_sz = scmd->device->sector_size; + sectors = good_bytes / sector_sz; + + phys = scmd->request->sector & 0xffffffff; + if (sector_sz == 4096) + phys >>= 3; + + __rq_for_each_bio(bio, scmd->request) { + struct bio_vec *iv; + + virt = bio->bi_integrity->bip_sector & 0xffffffff; + + bip_for_each_vec(iv, bio->bi_integrity, i) { + sdt = kmap_atomic(iv->bv_page, KM_USER0) + + iv->bv_offset; + + for (j = 0 ; j < iv->bv_len ; j += tuple_sz, sdt++) { + + if (sectors == 0) { + kunmap_atomic(sdt, KM_USER0); + return; + } + + if (be32_to_cpu(sdt->ref_tag) != phys && + sdt->app_tag != 0xffff) + sdt->ref_tag = 0xffffffff; /* Bad ref */ + else + sdt->ref_tag = cpu_to_be32(virt); + + virt++; + phys++; + sectors--; + } + + kunmap_atomic(sdt, KM_USER0); + } + } +} + -- cgit v1.2.1 From 12265709ac6e197f4d40d9ec1fd3af97b4196a35 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Mon, 21 Jul 2008 10:25:52 -0400 Subject: [SCSI] scsi_eh_prep_cmnd should save scmd->underflow This patch (as1116) fixes a bug in scsi_eh_prep_cmnd() and scsi_eh_restore_cmnd(). These routines are supposed to save any values they change and restore them later, but someone forgot to save & restore scmd->underflow. This fixes part of the problem reported in Bugzilla #9638. [jejb: fix up rejections around DIF/DIX] Signed-off-by: Alan Stern Signed-off-by: James Bottomley --- drivers/scsi/scsi_error.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index fc4b2d05f2e1..171b82d748cf 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -667,6 +667,7 @@ void scsi_eh_prep_cmnd(struct scsi_cmnd *scmd, struct scsi_eh_save *ses, ses->sdb = scmd->sdb; ses->next_rq = scmd->request->next_rq; ses->result = scmd->result; + ses->underflow = scmd->underflow; ses->prot_op = scmd->prot_op; scmd->prot_op = SCSI_PROT_NORMAL; @@ -727,6 +728,7 @@ void scsi_eh_restore_cmnd(struct scsi_cmnd* scmd, struct scsi_eh_save *ses) scmd->sdb = ses->sdb; scmd->request->next_rq = ses->next_rq; scmd->result = ses->result; + scmd->underflow = ses->underflow; scmd->prot_op = ses->prot_op; } EXPORT_SYMBOL(scsi_eh_restore_cmnd); -- cgit v1.2.1 From 773e82f6cdb026282ff7d26aaac291a5fa84ee3a Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Mon, 21 Jul 2008 09:58:30 +0200 Subject: [SCSI] scsi_scan.c: Release mutex in error handling code The mutex is released on a successful return, so it would seem that it should be released on an error return as well. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // @@ expression l; @@ mutex_lock(l); ... when != mutex_unlock(l) when any when strict ( if (...) { ... when != mutex_unlock(l) + mutex_unlock(l); return ...; } | mutex_unlock(l); ) // Signed-off-by: Julia Lawall Signed-off-by: James Bottomley --- drivers/scsi/scsi_scan.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 196fe3af0d5e..b7b74489fce7 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -1760,6 +1760,7 @@ static void scsi_finish_async_scan(struct async_scan_data *data) printk("%s called twice for host %d", __FUNCTION__, shost->host_no); dump_stack(); + mutex_unlock(&shost->scan_mutex); return; } -- cgit v1.2.1 From e41443ec3bb3dc4b12c861e91a5d36feb45f8a46 Mon Sep 17 00:00:00 2001 From: Mike Anderson Date: Mon, 21 Jul 2008 15:58:32 -0700 Subject: [SCSI] sym53c8xx: free luntbl in sym_hcb_free This patch frees the luntbl dma area in sym_hcb_free if allocated. Since the luntbl is part of a larger dma coherent area not freeing the luntbl kept a 64k dma coherent area previous allocated through dma_alloc_coherent allocated. This prevented a DLPAR remove IO operation from completing successfully. Signed-off-by: Mike Anderson Cc: Matthew Wilcox Signed-off-by: James Bottomley --- drivers/scsi/sym53c8xx_2/sym_hipd.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/scsi/sym53c8xx_2/sym_hipd.c b/drivers/scsi/sym53c8xx_2/sym_hipd.c index 22a6aae78699..98df1651404f 100644 --- a/drivers/scsi/sym53c8xx_2/sym_hipd.c +++ b/drivers/scsi/sym53c8xx_2/sym_hipd.c @@ -5741,6 +5741,8 @@ void sym_hcb_free(struct sym_hcb *np) for (target = 0; target < SYM_CONF_MAX_TARGET ; target++) { tp = &np->target[target]; + if (tp->luntbl) + sym_mfree_dma(tp->luntbl, 256, "LUNTBL"); #if SYM_CONF_MAX_LUN > 1 kfree(tp->lunmp); #endif -- cgit v1.2.1 From 0ae808e02e000058cf65a47662c187dc061bcfd3 Mon Sep 17 00:00:00 2001 From: Brian King Date: Tue, 22 Jul 2008 08:31:39 -0500 Subject: [SCSI] ibmvfc: Reduce unnecessary log noise Reduces some unnecessary log noise by removing a printk during host port state query and increasing the log level required to log received async events. Signed-off-by: Brian King Signed-off-by: James Bottomley --- drivers/scsi/ibmvscsi/ibmvfc.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index c4a7c06793c5..8d393800f47e 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -963,6 +963,9 @@ static void ibmvfc_get_host_port_state(struct Scsi_Host *shost) case IBMVFC_HALTED: fc_host_port_state(shost) = FC_PORTSTATE_BLOCKED; break; + case IBMVFC_NO_CRQ: + fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; + break; default: ibmvfc_log(vhost, 3, "Unknown port state: %d\n", vhost->state); fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; @@ -1404,7 +1407,7 @@ static void ibmvfc_log_error(struct ibmvfc_event *evt) err = cmd_status[index].name; } - if (!logerr && (vhost->log_level <= IBMVFC_DEFAULT_LOG_LEVEL)) + if (!logerr && (vhost->log_level <= (IBMVFC_DEFAULT_LOG_LEVEL + 1))) return; if (rsp->flags & FCP_RSP_LEN_VALID) @@ -2054,7 +2057,7 @@ static void ibmvfc_handle_async(struct ibmvfc_async_crq *crq, { const char *desc = ibmvfc_get_ae_desc(crq->event); - ibmvfc_log(vhost, 2, "%s event received\n", desc); + ibmvfc_log(vhost, 3, "%s event received\n", desc); switch (crq->event) { case IBMVFC_AE_LINK_UP: -- cgit v1.2.1 From b3c10489cb464b12a74dda65f826433f71f2c2e2 Mon Sep 17 00:00:00 2001 From: Brian King Date: Tue, 22 Jul 2008 08:31:41 -0500 Subject: [SCSI] ibmvfc: Target refcounting fixes Fix up some refcounting on the ibmvfc drivers internal target struct when accessed through some sysfs attributes. Signed-off-by: Brian King Signed-off-by: James Bottomley --- drivers/scsi/ibmvscsi/ibmvfc.c | 48 ++++++++++++++++++++++++------------------ 1 file changed, 28 insertions(+), 20 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 8d393800f47e..1781cec97fba 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -854,39 +854,41 @@ static void ibmvfc_retry_host_init(struct ibmvfc_host *vhost) } /** - * __ibmvfc_find_target - Find the specified scsi_target (no locking) + * __ibmvfc_get_target - Find the specified scsi_target (no locking) * @starget: scsi target struct * * Return value: * ibmvfc_target struct / NULL if not found **/ -static struct ibmvfc_target *__ibmvfc_find_target(struct scsi_target *starget) +static struct ibmvfc_target *__ibmvfc_get_target(struct scsi_target *starget) { struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); struct ibmvfc_host *vhost = shost_priv(shost); struct ibmvfc_target *tgt; list_for_each_entry(tgt, &vhost->targets, queue) - if (tgt->target_id == starget->id) + if (tgt->target_id == starget->id) { + kref_get(&tgt->kref); return tgt; + } return NULL; } /** - * ibmvfc_find_target - Find the specified scsi_target + * ibmvfc_get_target - Find the specified scsi_target * @starget: scsi target struct * * Return value: * ibmvfc_target struct / NULL if not found **/ -static struct ibmvfc_target *ibmvfc_find_target(struct scsi_target *starget) +static struct ibmvfc_target *ibmvfc_get_target(struct scsi_target *starget) { struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); struct ibmvfc_target *tgt; unsigned long flags; spin_lock_irqsave(shost->host_lock, flags); - tgt = __ibmvfc_find_target(starget); + tgt = __ibmvfc_get_target(starget); spin_unlock_irqrestore(shost->host_lock, flags); return tgt; } @@ -990,6 +992,17 @@ static void ibmvfc_set_rport_dev_loss_tmo(struct fc_rport *rport, u32 timeout) rport->dev_loss_tmo = 1; } +/** + * ibmvfc_release_tgt - Free memory allocated for a target + * @kref: kref struct + * + **/ +static void ibmvfc_release_tgt(struct kref *kref) +{ + struct ibmvfc_target *tgt = container_of(kref, struct ibmvfc_target, kref); + kfree(tgt); +} + /** * ibmvfc_get_starget_node_name - Get SCSI target's node name * @starget: scsi target struct @@ -999,8 +1012,10 @@ static void ibmvfc_set_rport_dev_loss_tmo(struct fc_rport *rport, u32 timeout) **/ static void ibmvfc_get_starget_node_name(struct scsi_target *starget) { - struct ibmvfc_target *tgt = ibmvfc_find_target(starget); + struct ibmvfc_target *tgt = ibmvfc_get_target(starget); fc_starget_port_name(starget) = tgt ? tgt->ids.node_name : 0; + if (tgt) + kref_put(&tgt->kref, ibmvfc_release_tgt); } /** @@ -1012,8 +1027,10 @@ static void ibmvfc_get_starget_node_name(struct scsi_target *starget) **/ static void ibmvfc_get_starget_port_name(struct scsi_target *starget) { - struct ibmvfc_target *tgt = ibmvfc_find_target(starget); + struct ibmvfc_target *tgt = ibmvfc_get_target(starget); fc_starget_port_name(starget) = tgt ? tgt->ids.port_name : 0; + if (tgt) + kref_put(&tgt->kref, ibmvfc_release_tgt); } /** @@ -1025,8 +1042,10 @@ static void ibmvfc_get_starget_port_name(struct scsi_target *starget) **/ static void ibmvfc_get_starget_port_id(struct scsi_target *starget) { - struct ibmvfc_target *tgt = ibmvfc_find_target(starget); + struct ibmvfc_target *tgt = ibmvfc_get_target(starget); fc_starget_port_id(starget) = tgt ? tgt->scsi_id : -1; + if (tgt) + kref_put(&tgt->kref, ibmvfc_release_tgt); } /** @@ -2650,17 +2669,6 @@ static void ibmvfc_retry_tgt_init(struct ibmvfc_target *tgt, ibmvfc_init_tgt(tgt, job_step); } -/** - * ibmvfc_release_tgt - Free memory allocated for a target - * @kref: kref struct - * - **/ -static void ibmvfc_release_tgt(struct kref *kref) -{ - struct ibmvfc_target *tgt = container_of(kref, struct ibmvfc_target, kref); - kfree(tgt); -} - /** * ibmvfc_tgt_prli_done - Completion handler for Process Login * @evt: ibmvfc event struct -- cgit v1.2.1 From 2d0da2a44e065a5bdd90bed2ebe0b9216c27f682 Mon Sep 17 00:00:00 2001 From: Brian King Date: Tue, 22 Jul 2008 08:31:42 -0500 Subject: [SCSI] ibmvfc: Fix hang on module removal If certain ELS events are received during module removal, after the kthread is stopped, the rmmod can hang. This fixes the ibmvfc driver so that ELS events during rmmod are ignored by stopping all device activity prior to killing the kthread and also changes reinitialization to not attempt a reinit if the adapter has been taken offline. Signed-off-by: Brian King Signed-off-by: James Bottomley --- drivers/scsi/ibmvscsi/ibmvfc.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 1781cec97fba..f1e5fac1c1dd 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -521,9 +521,10 @@ static void ibmvfc_set_host_action(struct ibmvfc_host *vhost, static void ibmvfc_reinit_host(struct ibmvfc_host *vhost) { if (vhost->action == IBMVFC_HOST_ACTION_NONE) { - scsi_block_requests(vhost->host); - ibmvfc_set_host_state(vhost, IBMVFC_INITIALIZING); - ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_QUERY); + if (!ibmvfc_set_host_state(vhost, IBMVFC_INITIALIZING)) { + scsi_block_requests(vhost->host); + ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_QUERY); + } } else vhost->reinit = 1; @@ -3811,10 +3812,12 @@ static int ibmvfc_remove(struct vio_dev *vdev) ENTER; ibmvfc_remove_trace_file(&vhost->host->shost_dev.kobj, &ibmvfc_trace_attr); + ibmvfc_link_down(vhost, IBMVFC_HOST_OFFLINE); + ibmvfc_wait_while_resetting(vhost); + ibmvfc_release_crq_queue(vhost); kthread_stop(vhost->work_thread); fc_remove_host(vhost->host); scsi_remove_host(vhost->host); - ibmvfc_release_crq_queue(vhost); spin_lock_irqsave(vhost->host->host_lock, flags); ibmvfc_purge_requests(vhost, DID_ERROR); -- cgit v1.2.1 From 52d7e861cc071688f5fa3ee1b6e94785adeff8db Mon Sep 17 00:00:00 2001 From: Brian King Date: Tue, 22 Jul 2008 08:31:46 -0500 Subject: [SCSI] ibmvfc: Miscellaneous fixes Properly setup the size of the async event queue. This fixes a bug where async events were not getting processed by the driver. Setup target_id field in the driver's target struct so that target sysfs attributes work for multiple targets. Signed-off-by: Brian King Signed-off-by: James Bottomley --- drivers/scsi/ibmvscsi/ibmvfc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index f1e5fac1c1dd..1917acb9102e 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -1136,7 +1136,7 @@ static void ibmvfc_set_login_info(struct ibmvfc_host *vhost) login_info->max_cmds = max_requests + IBMVFC_NUM_INTERNAL_REQ; login_info->capabilities = IBMVFC_CAN_MIGRATE; login_info->async.va = vhost->async_crq.msg_token; - login_info->async.len = vhost->async_crq.size; + login_info->async.len = vhost->async_crq.size * sizeof(*vhost->async_crq.msgs); strncpy(login_info->partition_name, vhost->partition_name, IBMVFC_MAX_NAME); strncpy(login_info->device_name, vhost->host->shost_gendev.bus_id, IBMVFC_MAX_NAME); @@ -3348,6 +3348,7 @@ static void ibmvfc_tgt_add_rport(struct ibmvfc_target *tgt) tgt_dbg(tgt, "rport add succeeded\n"); rport->maxframe_size = tgt->service_parms.common.bb_rcv_sz & 0x0fff; rport->supported_classes = 0; + tgt->target_id = rport->scsi_target_id; if (tgt->service_parms.class1_parms[0] & 0x80000000) rport->supported_classes |= FC_COS_CLASS1; if (tgt->service_parms.class2_parms[0] & 0x80000000) -- cgit v1.2.1 From 989b854579875b38d45fffa7f8c89177f7698cd3 Mon Sep 17 00:00:00 2001 From: Brian King Date: Tue, 22 Jul 2008 08:31:47 -0500 Subject: [SCSI] ibmvfc: Add ADISC support Add an ADISC to the target discovery job in order to sanity check whether or not we need to re-login to the target. Signed-off-by: Brian King Signed-off-by: James Bottomley --- drivers/scsi/ibmvscsi/ibmvfc.c | 135 +++++++++++++++++++++++++++++++++++++++++ drivers/scsi/ibmvscsi/ibmvfc.h | 36 +++++++++++ 2 files changed, 171 insertions(+) (limited to 'drivers') diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 1917acb9102e..a33fa133f75b 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -2913,6 +2913,139 @@ static void ibmvfc_tgt_implicit_logout(struct ibmvfc_target *tgt) tgt_dbg(tgt, "Sent Implicit Logout\n"); } +/** + * ibmvfc_adisc_needs_plogi - Does device need PLOGI? + * @mad: ibmvfc passthru mad struct + * @tgt: ibmvfc target struct + * + * Returns: + * 1 if PLOGI needed / 0 if PLOGI not needed + **/ +static int ibmvfc_adisc_needs_plogi(struct ibmvfc_passthru_mad *mad, + struct ibmvfc_target *tgt) +{ + if (memcmp(&mad->fc_iu.response[2], &tgt->ids.port_name, + sizeof(tgt->ids.port_name))) + return 1; + if (memcmp(&mad->fc_iu.response[4], &tgt->ids.node_name, + sizeof(tgt->ids.node_name))) + return 1; + if (mad->fc_iu.response[6] != tgt->scsi_id) + return 1; + return 0; +} + +/** + * ibmvfc_tgt_adisc_done - Completion handler for ADISC + * @evt: ibmvfc event struct + * + **/ +static void ibmvfc_tgt_adisc_done(struct ibmvfc_event *evt) +{ + struct ibmvfc_target *tgt = evt->tgt; + struct ibmvfc_host *vhost = evt->vhost; + struct ibmvfc_passthru_mad *mad = &evt->xfer_iu->passthru; + u32 status = mad->common.status; + u8 fc_reason, fc_explain; + + vhost->discovery_threads--; + ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_NONE); + + switch (status) { + case IBMVFC_MAD_SUCCESS: + tgt_dbg(tgt, "ADISC succeeded\n"); + if (ibmvfc_adisc_needs_plogi(mad, tgt)) + tgt->need_login = 1; + break; + case IBMVFC_MAD_DRIVER_FAILED: + break; + case IBMVFC_MAD_FAILED: + default: + tgt->need_login = 1; + fc_reason = (mad->fc_iu.response[1] & 0x00ff0000) >> 16; + fc_explain = (mad->fc_iu.response[1] & 0x0000ff00) >> 8; + tgt_info(tgt, "ADISC failed: %s (%x:%x) %s (%x) %s (%x) rc=0x%02X\n", + ibmvfc_get_cmd_error(mad->iu.status, mad->iu.error), + mad->iu.status, mad->iu.error, + ibmvfc_get_fc_type(fc_reason), fc_reason, + ibmvfc_get_ls_explain(fc_explain), fc_explain, status); + break; + }; + + kref_put(&tgt->kref, ibmvfc_release_tgt); + ibmvfc_free_event(evt); + wake_up(&vhost->work_wait_q); +} + +/** + * ibmvfc_init_passthru - Initialize an event struct for FC passthru + * @evt: ibmvfc event struct + * + **/ +static void ibmvfc_init_passthru(struct ibmvfc_event *evt) +{ + struct ibmvfc_passthru_mad *mad = &evt->iu.passthru; + + memset(mad, 0, sizeof(*mad)); + mad->common.version = 1; + mad->common.opcode = IBMVFC_PASSTHRU; + mad->common.length = sizeof(*mad) - sizeof(mad->fc_iu) - sizeof(mad->iu); + mad->cmd_ioba.va = (u64)evt->crq.ioba + + offsetof(struct ibmvfc_passthru_mad, iu); + mad->cmd_ioba.len = sizeof(mad->iu); + mad->iu.cmd_len = sizeof(mad->fc_iu.payload); + mad->iu.rsp_len = sizeof(mad->fc_iu.response); + mad->iu.cmd.va = (u64)evt->crq.ioba + + offsetof(struct ibmvfc_passthru_mad, fc_iu) + + offsetof(struct ibmvfc_passthru_fc_iu, payload); + mad->iu.cmd.len = sizeof(mad->fc_iu.payload); + mad->iu.rsp.va = (u64)evt->crq.ioba + + offsetof(struct ibmvfc_passthru_mad, fc_iu) + + offsetof(struct ibmvfc_passthru_fc_iu, response); + mad->iu.rsp.len = sizeof(mad->fc_iu.response); +} + +/** + * ibmvfc_tgt_adisc - Initiate an ADISC for specified target + * @tgt: ibmvfc target struct + * + **/ +static void ibmvfc_tgt_adisc(struct ibmvfc_target *tgt) +{ + struct ibmvfc_passthru_mad *mad; + struct ibmvfc_host *vhost = tgt->vhost; + struct ibmvfc_event *evt; + + if (vhost->discovery_threads >= disc_threads) + return; + + kref_get(&tgt->kref); + evt = ibmvfc_get_event(vhost); + vhost->discovery_threads++; + ibmvfc_init_event(evt, ibmvfc_tgt_adisc_done, IBMVFC_MAD_FORMAT); + evt->tgt = tgt; + + ibmvfc_init_passthru(evt); + mad = &evt->iu.passthru; + mad->iu.flags = IBMVFC_FC_ELS; + mad->iu.scsi_id = tgt->scsi_id; + + mad->fc_iu.payload[0] = IBMVFC_ADISC; + memcpy(&mad->fc_iu.payload[2], &vhost->login_buf->resp.port_name, + sizeof(vhost->login_buf->resp.port_name)); + memcpy(&mad->fc_iu.payload[4], &vhost->login_buf->resp.node_name, + sizeof(vhost->login_buf->resp.node_name)); + mad->fc_iu.payload[6] = vhost->login_buf->resp.scsi_id & 0x00ffffff; + + ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_INIT_WAIT); + if (ibmvfc_send_event(evt, vhost, default_timeout)) { + vhost->discovery_threads--; + ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_NONE); + kref_put(&tgt->kref, ibmvfc_release_tgt); + } else + tgt_dbg(tgt, "Sent ADISC\n"); +} + /** * ibmvfc_tgt_query_target_done - Completion handler for Query Target MAD * @evt: ibmvfc event struct @@ -2933,6 +3066,8 @@ static void ibmvfc_tgt_query_target_done(struct ibmvfc_event *evt) tgt->new_scsi_id = rsp->scsi_id; if (rsp->scsi_id != tgt->scsi_id) ibmvfc_init_tgt(tgt, ibmvfc_tgt_implicit_logout); + else + ibmvfc_init_tgt(tgt, ibmvfc_tgt_adisc); break; case IBMVFC_MAD_DRIVER_FAILED: break; diff --git a/drivers/scsi/ibmvscsi/ibmvfc.h b/drivers/scsi/ibmvscsi/ibmvfc.h index 057f3c01ed61..6a48e5bb94e7 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.h +++ b/drivers/scsi/ibmvscsi/ibmvfc.h @@ -119,6 +119,7 @@ enum ibmvfc_mad_types { IBMVFC_PROCESS_LOGIN = 0x0008, IBMVFC_QUERY_TARGET = 0x0010, IBMVFC_IMPLICIT_LOGOUT = 0x0040, + IBMVFC_PASSTHRU = 0x0200, IBMVFC_TMF_MAD = 0x0100, }; @@ -439,6 +440,37 @@ struct ibmvfc_cmd { struct ibmvfc_fcp_rsp rsp; }__attribute__((packed, aligned (8))); +struct ibmvfc_passthru_fc_iu { + u32 payload[7]; +#define IBMVFC_ADISC 0x52000000 + u32 response[7]; +}; + +struct ibmvfc_passthru_iu { + u64 task_tag; + u32 cmd_len; + u32 rsp_len; + u16 status; + u16 error; + u32 flags; +#define IBMVFC_FC_ELS 0x01 + u32 cancel_key; + u32 reserved; + struct srp_direct_buf cmd; + struct srp_direct_buf rsp; + u64 correlation; + u64 scsi_id; + u64 tag; + u64 reserved2[2]; +}__attribute__((packed, aligned (8))); + +struct ibmvfc_passthru_mad { + struct ibmvfc_mad_common common; + struct srp_direct_buf cmd_ioba; + struct ibmvfc_passthru_iu iu; + struct ibmvfc_passthru_fc_iu fc_iu; +}__attribute__((packed, aligned (8))); + struct ibmvfc_trace_start_entry { u32 xfer_len; }__attribute__((packed)); @@ -531,6 +563,7 @@ union ibmvfc_iu { struct ibmvfc_implicit_logout implicit_logout; struct ibmvfc_tmf tmf; struct ibmvfc_cmd cmd; + struct ibmvfc_passthru_mad passthru; }__attribute__((packed, aligned (8))); enum ibmvfc_target_action { @@ -656,6 +689,9 @@ struct ibmvfc_host { #define tgt_dbg(t, fmt, ...) \ DBG_CMD(dev_info((t)->vhost->dev, "%lX: " fmt, (t)->scsi_id, ##__VA_ARGS__)) +#define tgt_info(t, fmt, ...) \ + dev_info((t)->vhost->dev, "%lX: " fmt, (t)->scsi_id, ##__VA_ARGS__) + #define tgt_err(t, fmt, ...) \ dev_err((t)->vhost->dev, "%lX: " fmt, (t)->scsi_id, ##__VA_ARGS__) -- cgit v1.2.1 From b7b1a35ea563a8f1219dc3fdf12f37937cb83245 Mon Sep 17 00:00:00 2001 From: Brian King Date: Tue, 22 Jul 2008 08:31:48 -0500 Subject: [SCSI] ibmvfc: Update driver version to 1.0.1 Update driver version to 1.0.1. Signed-off-by: Brian King Signed-off-by: James Bottomley --- drivers/scsi/ibmvscsi/ibmvfc.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/ibmvscsi/ibmvfc.h b/drivers/scsi/ibmvscsi/ibmvfc.h index 6a48e5bb94e7..de2c34abddf4 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.h +++ b/drivers/scsi/ibmvscsi/ibmvfc.h @@ -29,8 +29,8 @@ #include "viosrp.h" #define IBMVFC_NAME "ibmvfc" -#define IBMVFC_DRIVER_VERSION "1.0.0" -#define IBMVFC_DRIVER_DATE "(July 1, 2008)" +#define IBMVFC_DRIVER_VERSION "1.0.1" +#define IBMVFC_DRIVER_DATE "(July 11, 2008)" #define IBMVFC_DEFAULT_TIMEOUT 15 #define IBMVFC_INIT_TIMEOUT 30 -- cgit v1.2.1 From 6bd522f6a226f435508433d24e0de4619e016a9d Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Tue, 22 Jul 2008 15:34:38 -0500 Subject: [SCSI] scsi_lib: use blk_rq_tagged in scsi_request_fn I goofed and did not see the macro for checking if a request is tagged. This patch has us use blk_rq_tagged instead of digging into the req->tag. Patch was made over scsi-misc. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/scsi_lib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index a20730c48020..6d62be664d55 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1533,7 +1533,7 @@ static void scsi_request_fn(struct request_queue *q) * we add the dev to the starved list so it eventually gets * a run when a tag is freed. */ - if (blk_queue_tagged(q) && (req->tag == -1)) { + if (blk_queue_tagged(q) && !blk_rq_tagged(req)) { if (list_empty(&sdev->starved_entry)) list_add_tail(&sdev->starved_entry, &shost->starved_list); -- cgit v1.2.1 From 3dabec7175bc6d49e88748cf03951357e74496ca Mon Sep 17 00:00:00 2001 From: adam radford Date: Tue, 22 Jul 2008 16:47:40 -0700 Subject: [SCSI] 3w-9xxx: add MSI support and misc fixes This patch for the 3w-9xxx scsi driver applies on top of the BKL-pushdown changes in -git9. This patch does the following: - Increase max AENs drained to 256. - Add MSI support and "use_msi" module parameter. - Fix bug in twa_get_param() on 4GB+. - Use pci_resource_len() for ioremap(). Signed-off-by: James Bottomley --- drivers/scsi/3w-9xxx.c | 40 ++++++++++++++++++++++++++++++---------- drivers/scsi/3w-9xxx.h | 9 +++++---- 2 files changed, 35 insertions(+), 14 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c index 7045511f9ad2..b92c19bb6876 100644 --- a/drivers/scsi/3w-9xxx.c +++ b/drivers/scsi/3w-9xxx.c @@ -4,7 +4,7 @@ Written By: Adam Radford Modifications By: Tom Couch - Copyright (C) 2004-2007 Applied Micro Circuits Corporation. + Copyright (C) 2004-2008 Applied Micro Circuits Corporation. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -71,6 +71,10 @@ Add support for 9650SE controllers. 2.26.02.009 - Fix dma mask setting to fallback to 32-bit if 64-bit fails. 2.26.02.010 - Add support for 9690SA controllers. + 2.26.02.011 - Increase max AENs drained to 256. + Add MSI support and "use_msi" module parameter. + Fix bug in twa_get_param() on 4GB+. + Use pci_resource_len() for ioremap(). */ #include @@ -95,7 +99,7 @@ #include "3w-9xxx.h" /* Globals */ -#define TW_DRIVER_VERSION "2.26.02.010" +#define TW_DRIVER_VERSION "2.26.02.011" static TW_Device_Extension *twa_device_extension_list[TW_MAX_SLOT]; static unsigned int twa_device_extension_count; static int twa_major = -1; @@ -107,6 +111,10 @@ MODULE_DESCRIPTION ("3ware 9000 Storage Controller Linux Driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(TW_DRIVER_VERSION); +static int use_msi = 0; +module_param(use_msi, int, S_IRUGO); +MODULE_PARM_DESC(use_msi, "Use Message Signaled Interrupts. Default: 0"); + /* Function prototypes */ static void twa_aen_queue_event(TW_Device_Extension *tw_dev, TW_Command_Apache_Header *header); static int twa_aen_read_queue(TW_Device_Extension *tw_dev, int request_id); @@ -1038,7 +1046,6 @@ static void *twa_get_param(TW_Device_Extension *tw_dev, int request_id, int tabl TW_Command_Full *full_command_packet; TW_Command *command_packet; TW_Param_Apache *param; - unsigned long param_value; void *retval = NULL; /* Setup the command packet */ @@ -1057,9 +1064,8 @@ static void *twa_get_param(TW_Device_Extension *tw_dev, int request_id, int tabl param->table_id = cpu_to_le16(table_id | 0x8000); param->parameter_id = cpu_to_le16(parameter_id); param->parameter_size_bytes = cpu_to_le16(parameter_size_bytes); - param_value = tw_dev->generic_buffer_phys[request_id]; - command_packet->byte8_offset.param.sgl[0].address = TW_CPU_TO_SGL(param_value); + command_packet->byte8_offset.param.sgl[0].address = TW_CPU_TO_SGL(tw_dev->generic_buffer_phys[request_id]); command_packet->byte8_offset.param.sgl[0].length = cpu_to_le32(TW_SECTOR_SIZE); /* Post the command packet to the board */ @@ -2000,7 +2006,7 @@ static int __devinit twa_probe(struct pci_dev *pdev, const struct pci_device_id { struct Scsi_Host *host = NULL; TW_Device_Extension *tw_dev; - u32 mem_addr; + unsigned long mem_addr, mem_len; int retval = -ENODEV; retval = pci_enable_device(pdev); @@ -2045,13 +2051,16 @@ static int __devinit twa_probe(struct pci_dev *pdev, const struct pci_device_id goto out_free_device_extension; } - if (pdev->device == PCI_DEVICE_ID_3WARE_9000) + if (pdev->device == PCI_DEVICE_ID_3WARE_9000) { mem_addr = pci_resource_start(pdev, 1); - else + mem_len = pci_resource_len(pdev, 1); + } else { mem_addr = pci_resource_start(pdev, 2); + mem_len = pci_resource_len(pdev, 2); + } /* Save base address */ - tw_dev->base_addr = ioremap(mem_addr, PAGE_SIZE); + tw_dev->base_addr = ioremap(mem_addr, mem_len); if (!tw_dev->base_addr) { TW_PRINTK(tw_dev->host, TW_DRIVER, 0x35, "Failed to ioremap"); goto out_release_mem_region; @@ -2086,7 +2095,7 @@ static int __devinit twa_probe(struct pci_dev *pdev, const struct pci_device_id pci_set_drvdata(pdev, host); - printk(KERN_WARNING "3w-9xxx: scsi%d: Found a 3ware 9000 Storage Controller at 0x%x, IRQ: %d.\n", + printk(KERN_WARNING "3w-9xxx: scsi%d: Found a 3ware 9000 Storage Controller at 0x%lx, IRQ: %d.\n", host->host_no, mem_addr, pdev->irq); printk(KERN_WARNING "3w-9xxx: scsi%d: Firmware %s, BIOS %s, Ports: %d.\n", host->host_no, @@ -2097,6 +2106,11 @@ static int __devinit twa_probe(struct pci_dev *pdev, const struct pci_device_id le32_to_cpu(*(int *)twa_get_param(tw_dev, 2, TW_INFORMATION_TABLE, TW_PARAM_PORTCOUNT, TW_PARAM_PORTCOUNT_LENGTH))); + /* Try to enable MSI */ + if (use_msi && (pdev->device != PCI_DEVICE_ID_3WARE_9000) && + !pci_enable_msi(pdev)) + set_bit(TW_USING_MSI, &tw_dev->flags); + /* Now setup the interrupt handler */ retval = request_irq(pdev->irq, twa_interrupt, IRQF_SHARED, "3w-9xxx", tw_dev); if (retval) { @@ -2120,6 +2134,8 @@ static int __devinit twa_probe(struct pci_dev *pdev, const struct pci_device_id return 0; out_remove_host: + if (test_bit(TW_USING_MSI, &tw_dev->flags)) + pci_disable_msi(pdev); scsi_remove_host(host); out_iounmap: iounmap(tw_dev->base_addr); @@ -2151,6 +2167,10 @@ static void twa_remove(struct pci_dev *pdev) /* Shutdown the card */ __twa_shutdown(tw_dev); + /* Disable MSI if enabled */ + if (test_bit(TW_USING_MSI, &tw_dev->flags)) + pci_disable_msi(pdev); + /* Free IO remapping */ iounmap(tw_dev->base_addr); diff --git a/drivers/scsi/3w-9xxx.h b/drivers/scsi/3w-9xxx.h index d14a9479e389..1729a8785fea 100644 --- a/drivers/scsi/3w-9xxx.h +++ b/drivers/scsi/3w-9xxx.h @@ -4,7 +4,7 @@ Written By: Adam Radford Modifications By: Tom Couch - Copyright (C) 2004-2007 Applied Micro Circuits Corporation. + Copyright (C) 2004-2008 Applied Micro Circuits Corporation. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -319,8 +319,8 @@ static twa_message_type twa_error_table[] = { /* Compatibility defines */ #define TW_9000_ARCH_ID 0x5 -#define TW_CURRENT_DRIVER_SRL 30 -#define TW_CURRENT_DRIVER_BUILD 80 +#define TW_CURRENT_DRIVER_SRL 35 +#define TW_CURRENT_DRIVER_BUILD 0 #define TW_CURRENT_DRIVER_BRANCH 0 /* Phase defines */ @@ -352,8 +352,9 @@ static twa_message_type twa_error_table[] = { #define TW_MAX_RESET_TRIES 2 #define TW_MAX_CMDS_PER_LUN 254 #define TW_MAX_RESPONSE_DRAIN 256 -#define TW_MAX_AEN_DRAIN 40 +#define TW_MAX_AEN_DRAIN 255 #define TW_IN_RESET 2 +#define TW_USING_MSI 3 #define TW_IN_ATTENTION_LOOP 4 #define TW_MAX_SECTORS 256 #define TW_AEN_WAIT_TIME 1000 -- cgit v1.2.1 From 3d164fb09bb5cb8a223eddf634fc0d355714fcfe Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Sat, 26 Jul 2008 23:25:43 +0900 Subject: [SCSI] ch: fix ch_remove oops The following commit causes ch_remove oops: commit 24b42566c3fcbb5a9011d1446783d0f5844ccd45 Author: Greg Kroah-Hartman Date: Fri May 16 17:55:12 2008 -0700 SCSI: fix race in device_create There is a race from when a device is created with device_create() and then the drvdata is set with a call to dev_set_drvdata() in which a sysfs file could be open, yet the drvdata will be NULL, causing all sorts of bad things to happen. This patch fixes the problem by using the new function, device_create_drvdata(). It fixes the problem in all of the scsi drivers that need it. Cc: Kay Sievers Cc: Doug Gilbert Cc: James E.J. Bottomley Signed-off-by: Greg Kroah-Hartman The problem is ch_probe stores ch's private data at a wrong place. We need to store it at scsi_device->sdev_gendev but the above patch stores it at device struct that device_create_drvdata returns. So we hit an oops when ch_remove accesses scsi_device->sdev_gendev->driver_data, which is NULL. Actually, there wasn't a race because ch doesn't create sysfs files with device struct that device_create returns. This patch puts back dev_set_drvdata() to set ch's private data properly. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley --- drivers/scsi/ch.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c index aa2011b64683..3c257fe0893e 100644 --- a/drivers/scsi/ch.c +++ b/drivers/scsi/ch.c @@ -930,6 +930,7 @@ static int ch_probe(struct device *dev) if (init) ch_init_elem(ch); + dev_set_drvdata(dev, ch); sdev_printk(KERN_INFO, sd, "Attached scsi changer %s\n", ch->name); return 0; -- cgit v1.2.1 From 8201e207997b4665a5fcb375bab293fddb2e6adb Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Thu, 24 Jul 2008 08:31:46 -0700 Subject: [SCSI] qla2xxx: Issue proper ISP callbacks during stop-firmware. As the original code would incorrectly call the non-ISP24xx/25xx callbacks during recovery, a stop-firmware failure could result in improper bit-banging of the RISC and in some cases manifest in a NMI-watchdog trigger due to the RISC not coming out of its reset state. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_init.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 44c0117c5d2b..597ac201969c 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -4038,8 +4038,8 @@ qla2x00_try_to_stop_firmware(scsi_qla_host_t *ha) ret = qla2x00_stop_firmware(ha); for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT && retries ; retries--) { - qla2x00_reset_chip(ha); - if (qla2x00_chip_diag(ha) != QLA_SUCCESS) + ha->isp_ops->reset_chip(ha); + if (ha->isp_ops->chip_diag(ha) != QLA_SUCCESS) continue; if (qla2x00_setup_chip(ha) != QLA_SUCCESS) continue; -- cgit v1.2.1 From b3dc9088f3714642284245a6c580305a1415e0e3 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Thu, 24 Jul 2008 08:31:47 -0700 Subject: [SCSI] qla2xxx: use memory_read_from_buffer() Signed-off-by: Akinobu Mita Signed-off-by: Andrew Morton Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_attr.c | 44 +++++++++-------------------------------- 1 file changed, 9 insertions(+), 35 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index 612e3d0c7bd1..fcec43a32be3 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -20,18 +20,12 @@ qla2x00_sysfs_read_fw_dump(struct kobject *kobj, { struct scsi_qla_host *ha = shost_priv(dev_to_shost(container_of(kobj, struct device, kobj))); - char *rbuf = (char *)ha->fw_dump; if (ha->fw_dump_reading == 0) return 0; - if (off > ha->fw_dump_len) - return 0; - if (off + count > ha->fw_dump_len) - count = ha->fw_dump_len - off; - memcpy(buf, &rbuf[off], count); - - return (count); + return memory_read_from_buffer(buf, count, &off, ha->fw_dump, + ha->fw_dump_len); } static ssize_t @@ -94,20 +88,13 @@ qla2x00_sysfs_read_nvram(struct kobject *kobj, { struct scsi_qla_host *ha = shost_priv(dev_to_shost(container_of(kobj, struct device, kobj))); - int size = ha->nvram_size; - char *nvram_cache = ha->nvram; - if (!capable(CAP_SYS_ADMIN) || off > size || count == 0) + if (!capable(CAP_SYS_ADMIN)) return 0; - if (off + count > size) { - size -= off; - count = size; - } /* Read NVRAM data from cache. */ - memcpy(buf, &nvram_cache[off], count); - - return count; + return memory_read_from_buffer(buf, count, &off, ha->nvram, + ha->nvram_size); } static ssize_t @@ -175,14 +162,9 @@ qla2x00_sysfs_read_optrom(struct kobject *kobj, if (ha->optrom_state != QLA_SREADING) return 0; - if (off > ha->optrom_region_size) - return 0; - if (off + count > ha->optrom_region_size) - count = ha->optrom_region_size - off; - memcpy(buf, &ha->optrom_buffer[off], count); - - return count; + return memory_read_from_buffer(buf, count, &off, ha->optrom_buffer, + ha->optrom_region_size); } static ssize_t @@ -374,20 +356,12 @@ qla2x00_sysfs_read_vpd(struct kobject *kobj, { struct scsi_qla_host *ha = shost_priv(dev_to_shost(container_of(kobj, struct device, kobj))); - int size = ha->vpd_size; - char *vpd_cache = ha->vpd; - if (!capable(CAP_SYS_ADMIN) || off > size || count == 0) + if (!capable(CAP_SYS_ADMIN)) return 0; - if (off + count > size) { - size -= off; - count = size; - } /* Read NVRAM data from cache. */ - memcpy(buf, &vpd_cache[off], count); - - return count; + return memory_read_from_buffer(buf, count, &off, ha->vpd, ha->vpd_size); } static ssize_t -- cgit v1.2.1 From bf6583b5831d3195c45f98ec3016499389cbe18f Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Thu, 24 Jul 2008 08:31:48 -0700 Subject: [SCSI] qla2xxx: suppress uninitialized-var warning drivers/scsi/qla2xxx/qla_os.c: In function 'qla2x00_post_work': drivers/scsi/qla2xxx/qla_os.c:2158: warning: 'flags' may be used uninitialized in this function Signed-off-by: Andrew Morton Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_os.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 0f44914b41d7..8fc712bbf344 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -2178,7 +2178,7 @@ qla2x00_alloc_work(struct scsi_qla_host *ha, enum qla_work_type type, static int qla2x00_post_work(struct scsi_qla_host *ha, struct qla_work_evt *e, int locked) { - unsigned long flags; + unsigned long uninitialized_var(flags); scsi_qla_host_t *pha = to_qla_parent(ha); if (!locked) -- cgit v1.2.1 From c9c5ced90abc22a94c96fa7db0e29c13483a6db0 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Thu, 24 Jul 2008 08:31:49 -0700 Subject: [SCSI] qla2xxx: Additional NPIV corrections. Minor fixes addressing: - rport managements during vport deletion. - acquire proper physical-ha during qla24xx_abort_command() and qla24xx_queuecommand() - do not needlessly acquire the pha for non-NPIV capable ISPs. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_attr.c | 5 +++++ drivers/scsi/qla2xxx/qla_init.c | 3 ++- drivers/scsi/qla2xxx/qla_iocb.c | 9 ++++----- drivers/scsi/qla2xxx/qla_mbx.c | 7 +++---- drivers/scsi/qla2xxx/qla_mid.c | 1 + drivers/scsi/qla2xxx/qla_os.c | 6 ++++-- 6 files changed, 19 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index fcec43a32be3..7a4409ab30ea 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -1177,6 +1177,11 @@ static int qla24xx_vport_delete(struct fc_vport *fc_vport) { scsi_qla_host_t *vha = fc_vport->dd_data; + scsi_qla_host_t *pha = to_qla_parent(vha); + + while (test_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags) || + test_bit(FCPORT_UPDATE_NEEDED, &pha->dpc_flags)) + msleep(1000); qla24xx_disable_vp(vha); qla24xx_deallocate_vp_id(vha); diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 597ac201969c..601a6b29750c 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -3231,7 +3231,8 @@ qla2x00_update_fcports(scsi_qla_host_t *ha) /* Go with deferred removal of rport references. */ list_for_each_entry(fcport, &ha->fcports, list) - if (fcport->drport) + if (fcport->drport && + atomic_read(&fcport->state) != FCS_UNCONFIGURED) qla2x00_rport_del(fcport); } diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index 6e14c8eaca82..d57669aa4615 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -269,7 +269,7 @@ qla2x00_start_scsi(srb_t *sp) { int ret, nseg; unsigned long flags; - scsi_qla_host_t *ha, *pha; + scsi_qla_host_t *ha; struct scsi_cmnd *cmd; uint32_t *clr_ptr; uint32_t index; @@ -283,7 +283,6 @@ qla2x00_start_scsi(srb_t *sp) /* Setup device pointers. */ ret = 0; ha = sp->ha; - pha = to_qla_parent(ha); reg = &ha->iobase->isp; cmd = sp->cmd; /* So we know we haven't pci_map'ed anything yet */ @@ -298,7 +297,7 @@ qla2x00_start_scsi(srb_t *sp) } /* Acquire ring specific lock */ - spin_lock_irqsave(&pha->hardware_lock, flags); + spin_lock_irqsave(&ha->hardware_lock, flags); /* Check for room in outstanding command list. */ handle = ha->current_outstanding_cmd; @@ -387,14 +386,14 @@ qla2x00_start_scsi(srb_t *sp) ha->response_ring_ptr->signature != RESPONSE_PROCESSED) qla2x00_process_response_queue(ha); - spin_unlock_irqrestore(&pha->hardware_lock, flags); + spin_unlock_irqrestore(&ha->hardware_lock, flags); return (QLA_SUCCESS); queuing_error: if (tot_dsds) scsi_dma_unmap(cmd); - spin_unlock_irqrestore(&pha->hardware_lock, flags); + spin_unlock_irqrestore(&ha->hardware_lock, flags); return (QLA_FUNCTION_FAILED); } diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index 7d7de592f720..bc90d6b8d0a0 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -749,18 +749,17 @@ qla2x00_abort_command(scsi_qla_host_t *ha, srb_t *sp) uint32_t handle; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - scsi_qla_host_t *pha = to_qla_parent(ha); DEBUG11(printk("qla2x00_abort_command(%ld): entered.\n", ha->host_no)); fcport = sp->fcport; - spin_lock_irqsave(&pha->hardware_lock, flags); + spin_lock_irqsave(&ha->hardware_lock, flags); for (handle = 1; handle < MAX_OUTSTANDING_COMMANDS; handle++) { if (ha->outstanding_cmds[handle] == sp) break; } - spin_unlock_irqrestore(&pha->hardware_lock, flags); + spin_unlock_irqrestore(&ha->hardware_lock, flags); if (handle == MAX_OUTSTANDING_COMMANDS) { /* command not found */ @@ -2172,7 +2171,7 @@ qla24xx_abort_command(scsi_qla_host_t *ha, srb_t *sp) spin_lock_irqsave(&pha->hardware_lock, flags); for (handle = 1; handle < MAX_OUTSTANDING_COMMANDS; handle++) { - if (ha->outstanding_cmds[handle] == sp) + if (pha->outstanding_cmds[handle] == sp) break; } spin_unlock_irqrestore(&pha->hardware_lock, flags); diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c index 9a850a24b38a..50baf6a1d67c 100644 --- a/drivers/scsi/qla2xxx/qla_mid.c +++ b/drivers/scsi/qla2xxx/qla_mid.c @@ -106,6 +106,7 @@ qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha) vha->host_no, fcport->loop_id, fcport->vp_idx)); qla2x00_mark_device_lost(vha, fcport, 0, 0); + atomic_set(&fcport->state, FCS_UNCONFIGURED); } } diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 8fc712bbf344..7c8af7ed2a5d 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -449,7 +449,7 @@ qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) int rval; scsi_qla_host_t *pha = to_qla_parent(ha); - if (unlikely(pci_channel_offline(ha->pdev))) { + if (unlikely(pci_channel_offline(pha->pdev))) { cmd->result = DID_REQUEUE << 16; goto qc24_fail_command; } @@ -2335,8 +2335,10 @@ qla2x00_do_dpc(void *data) ha->host_no)); } - if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags)) + if (test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags)) { qla2x00_update_fcports(ha); + clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags); + } if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) && (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) { -- cgit v1.2.1 From 4cfc51017db3e3f4eaaa2cb436a905097a4f08e2 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Thu, 24 Jul 2008 08:31:50 -0700 Subject: [SCSI] qla2xxx: Update version number to 8.02.01-k6. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_version.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h index ae60229472fd..676c390db354 100644 --- a/drivers/scsi/qla2xxx/qla_version.h +++ b/drivers/scsi/qla2xxx/qla_version.h @@ -7,7 +7,7 @@ /* * Driver version */ -#define QLA2XXX_VERSION "8.02.01-k5" +#define QLA2XXX_VERSION "8.02.01-k6" #define QLA_DRIVER_MAJOR_VER 8 #define QLA_DRIVER_MINOR_VER 2 -- cgit v1.2.1 From e84e954a72153ffd5630df6156720440b430c877 Mon Sep 17 00:00:00 2001 From: Ian Molton Date: Mon, 21 Jul 2008 11:02:40 +0100 Subject: [ARM] PXA: squash warning in pxafb Fixes a warning about using the wrong type in pxafb.c Signed-off-by: Ian Molton --- drivers/video/pxafb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c index 2b707a8ce5de..69de2fed6c58 100644 --- a/drivers/video/pxafb.c +++ b/drivers/video/pxafb.c @@ -1336,7 +1336,7 @@ static int __devinit pxafb_map_video_memory(struct pxafb_info *fbi) fbi->dma_buff_phys = fbi->map_dma; fbi->palette_cpu = (u16 *) fbi->dma_buff->palette; - pr_debug("pxafb: palette_mem_size = 0x%08lx\n", fbi->palette_size*sizeof(u16)); + pr_debug("pxafb: palette_mem_size = 0x%08x\n", fbi->palette_size*sizeof(u16)); #ifdef CONFIG_FB_PXA_SMARTPANEL fbi->smart_cmds = (uint16_t *) fbi->dma_buff->cmd_buff; -- cgit v1.2.1 From 99e65c92f2bbf84f43766a8bf701e36817d62822 Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Fri, 25 Jul 2008 15:50:04 +0200 Subject: KVM: s390: Fix guest kconfig Cornelia Huck noticed that a modular virtio without kvm guest support leads to a build error in the s390 virtio transport: CONFIG_VIRTIO=m leads to ERROR: "vmem_add_mapping" [drivers/s390/kvm/kvm_virtio.ko] undefined! ERROR: "max_pfn" [drivers/s390/kvm/kvm_virtio.ko] undefined! ERROR: "vmem_remove_mapping" [drivers/s390/kvm/kvm_virtio.ko] undefined! The virtio transport only works with kvm guest support and only as a builtin. Lets change the build process of drivers/s390/kvm/kvm_virtio.c to depend on kvm guest support, which is also a bool. CONFIG_S390_GUEST already selects CONFIG_VIRTIO, that should prevent CONFIG_S390_GUEST=y CONFIG_VIRTIO=n situations. CC: Cornelia Huck Signed-off-by: Christian Borntraeger Signed-off-by: Avi Kivity --- drivers/s390/kvm/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/s390/kvm/Makefile b/drivers/s390/kvm/Makefile index 4a5ec39f9ca6..0815690ac1e0 100644 --- a/drivers/s390/kvm/Makefile +++ b/drivers/s390/kvm/Makefile @@ -6,4 +6,4 @@ # it under the terms of the GNU General Public License (version 2 only) # as published by the Free Software Foundation. -obj-$(CONFIG_VIRTIO) += kvm_virtio.o +obj-$(CONFIG_S390_GUEST) += kvm_virtio.o -- cgit v1.2.1 From 6cab48602996cdbcb277375a8107d53e21e8c9b9 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Sun, 27 Jul 2008 04:23:31 +0100 Subject: [ARM] 5179/1: Replace obsolete IRQT_* and __IRQT_* values with IRQ_TYPE_* IRQT_* and __IRQT_* were obsoleted long ago by patch [3692/1]. Remove them completely. Sed script for the reference: s/__IRQT_RISEDGE/IRQ_TYPE_EDGE_RISING/g s/__IRQT_FALEDGE/IRQ_TYPE_EDGE_FALLING/g s/__IRQT_LOWLVL/IRQ_TYPE_LEVEL_LOW/g s/__IRQT_HIGHLVL/IRQ_TYPE_LEVEL_HIGH/g s/IRQT_RISING/IRQ_TYPE_EDGE_RISING/g s/IRQT_FALLING/IRQ_TYPE_EDGE_FALLING/g s/IRQT_BOTHEDGE/IRQ_TYPE_EDGE_BOTH/g s/IRQT_LOW/IRQ_TYPE_LEVEL_LOW/g s/IRQT_HIGH/IRQ_TYPE_LEVEL_HIGH/g s/IRQT_PROBE/IRQ_TYPE_PROBE/g s/IRQT_NOEDGE/IRQ_TYPE_NONE/g Signed-off-by: Dmitry Baryshkov Signed-off-by: Russell King --- drivers/ata/pata_ixp4xx_cf.c | 2 +- drivers/input/touchscreen/corgi_ts.c | 8 ++++---- drivers/input/touchscreen/mainstone-wm97xx.c | 2 +- drivers/mfd/asic3.c | 14 +++++++------- drivers/mfd/tc6393xb.c | 2 +- drivers/pcmcia/soc_common.c | 12 ++++++------ drivers/video/am200epd.c | 2 +- drivers/video/omap/sossi.c | 2 +- 8 files changed, 22 insertions(+), 22 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/pata_ixp4xx_cf.c b/drivers/ata/pata_ixp4xx_cf.c index de8d186f5abf..2014253f6c88 100644 --- a/drivers/ata/pata_ixp4xx_cf.c +++ b/drivers/ata/pata_ixp4xx_cf.c @@ -169,7 +169,7 @@ static __devinit int ixp4xx_pata_probe(struct platform_device *pdev) irq = platform_get_irq(pdev, 0); if (irq) - set_irq_type(irq, IRQT_RISING); + set_irq_type(irq, IRQ_TYPE_EDGE_RISING); /* Setup expansion bus chip selects */ *data->cs0_cfg = data->cs0_bits; diff --git a/drivers/input/touchscreen/corgi_ts.c b/drivers/input/touchscreen/corgi_ts.c index 4e9d8eece2e0..d0e13fc4a88c 100644 --- a/drivers/input/touchscreen/corgi_ts.c +++ b/drivers/input/touchscreen/corgi_ts.c @@ -195,7 +195,7 @@ static void ts_interrupt_main(struct corgi_ts *corgi_ts, int isTimer) { if ((GPLR(IRQ_TO_GPIO(corgi_ts->irq_gpio)) & GPIO_bit(IRQ_TO_GPIO(corgi_ts->irq_gpio))) == 0) { /* Disable Interrupt */ - set_irq_type(corgi_ts->irq_gpio, IRQT_NOEDGE); + set_irq_type(corgi_ts->irq_gpio, IRQ_TYPE_NONE); if (read_xydata(corgi_ts)) { corgi_ts->pendown = 1; new_data(corgi_ts); @@ -214,7 +214,7 @@ static void ts_interrupt_main(struct corgi_ts *corgi_ts, int isTimer) } /* Enable Falling Edge */ - set_irq_type(corgi_ts->irq_gpio, IRQT_FALLING); + set_irq_type(corgi_ts->irq_gpio, IRQ_TYPE_EDGE_FALLING); corgi_ts->pendown = 0; } } @@ -258,7 +258,7 @@ static int corgits_resume(struct platform_device *dev) corgi_ssp_ads7846_putget((4u << ADSCTRL_ADR_SH) | ADSCTRL_STS); /* Enable Falling Edge */ - set_irq_type(corgi_ts->irq_gpio, IRQT_FALLING); + set_irq_type(corgi_ts->irq_gpio, IRQ_TYPE_EDGE_FALLING); corgi_ts->power_mode = PWR_MODE_ACTIVE; return 0; @@ -333,7 +333,7 @@ static int __init corgits_probe(struct platform_device *pdev) corgi_ts->power_mode = PWR_MODE_ACTIVE; /* Enable Falling Edge */ - set_irq_type(corgi_ts->irq_gpio, IRQT_FALLING); + set_irq_type(corgi_ts->irq_gpio, IRQ_TYPE_EDGE_FALLING); return 0; diff --git a/drivers/input/touchscreen/mainstone-wm97xx.c b/drivers/input/touchscreen/mainstone-wm97xx.c index a79f029b91c0..590a1379aa32 100644 --- a/drivers/input/touchscreen/mainstone-wm97xx.c +++ b/drivers/input/touchscreen/mainstone-wm97xx.c @@ -198,7 +198,7 @@ static int wm97xx_acc_startup(struct wm97xx *wm) switch (wm->id) { case WM9705_ID2: wm->pen_irq = IRQ_GPIO(4); - set_irq_type(IRQ_GPIO(4), IRQT_BOTHEDGE); + set_irq_type(IRQ_GPIO(4), IRQ_TYPE_EDGE_BOTH); break; case WM9712_ID2: case WM9713_ID2: diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c index eabf0bfccab4..c6408a62d95e 100644 --- a/drivers/mfd/asic3.c +++ b/drivers/mfd/asic3.c @@ -256,28 +256,28 @@ static int asic3_gpio_irq_type(unsigned int irq, unsigned int type) bank + ASIC3_GPIO_TRIGGER_TYPE); asic->irq_bothedge[(irq - asic->irq_base) >> 4] &= ~bit; - if (type == IRQT_RISING) { + if (type == IRQ_TYPE_EDGE_RISING) { trigger |= bit; edge |= bit; - } else if (type == IRQT_FALLING) { + } else if (type == IRQ_TYPE_EDGE_FALLING) { trigger |= bit; edge &= ~bit; - } else if (type == IRQT_BOTHEDGE) { + } else if (type == IRQ_TYPE_EDGE_BOTH) { trigger |= bit; if (asic3_gpio_get(&asic->gpio, irq - asic->irq_base)) edge &= ~bit; else edge |= bit; asic->irq_bothedge[(irq - asic->irq_base) >> 4] |= bit; - } else if (type == IRQT_LOW) { + } else if (type == IRQ_TYPE_LEVEL_LOW) { trigger &= ~bit; level &= ~bit; - } else if (type == IRQT_HIGH) { + } else if (type == IRQ_TYPE_LEVEL_HIGH) { trigger &= ~bit; level |= bit; } else { /* - * if type == IRQT_NOEDGE, we should mask interrupts, but + * if type == IRQ_TYPE_NONE, we should mask interrupts, but * be careful to not unmask them if mask was also called. * Probably need internal state for mask. */ @@ -343,7 +343,7 @@ static int __init asic3_irq_probe(struct platform_device *pdev) ASIC3_INTMASK_GINTMASK); set_irq_chained_handler(asic->irq_nr, asic3_irq_demux); - set_irq_type(asic->irq_nr, IRQT_RISING); + set_irq_type(asic->irq_nr, IRQ_TYPE_EDGE_RISING); set_irq_data(asic->irq_nr, asic); return 0; diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c index 2d87501b6fd4..94e55e8e7ce6 100644 --- a/drivers/mfd/tc6393xb.c +++ b/drivers/mfd/tc6393xb.c @@ -324,7 +324,7 @@ static void tc6393xb_attach_irq(struct platform_device *dev) set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); } - set_irq_type(tc6393xb->irq, IRQT_FALLING); + set_irq_type(tc6393xb->irq, IRQ_TYPE_EDGE_FALLING); set_irq_data(tc6393xb->irq, tc6393xb); set_irq_chained_handler(tc6393xb->irq, tc6393xb_irq); } diff --git a/drivers/pcmcia/soc_common.c b/drivers/pcmcia/soc_common.c index 420a77540f41..8c21446996f2 100644 --- a/drivers/pcmcia/soc_common.c +++ b/drivers/pcmcia/soc_common.c @@ -149,10 +149,10 @@ soc_common_pcmcia_config_skt(struct soc_pcmcia_socket *skt, socket_state_t *stat */ if (skt->irq_state != 1 && state->io_irq) { skt->irq_state = 1; - set_irq_type(skt->irq, IRQT_FALLING); + set_irq_type(skt->irq, IRQ_TYPE_EDGE_FALLING); } else if (skt->irq_state == 1 && state->io_irq == 0) { skt->irq_state = 0; - set_irq_type(skt->irq, IRQT_NOEDGE); + set_irq_type(skt->irq, IRQ_TYPE_NONE); } skt->cs_state = *state; @@ -527,7 +527,7 @@ int soc_pcmcia_request_irqs(struct soc_pcmcia_socket *skt, IRQF_DISABLED, irqs[i].str, skt); if (res) break; - set_irq_type(irqs[i].irq, IRQT_NOEDGE); + set_irq_type(irqs[i].irq, IRQ_TYPE_NONE); } if (res) { @@ -560,7 +560,7 @@ void soc_pcmcia_disable_irqs(struct soc_pcmcia_socket *skt, for (i = 0; i < nr; i++) if (irqs[i].sock == skt->nr) - set_irq_type(irqs[i].irq, IRQT_NOEDGE); + set_irq_type(irqs[i].irq, IRQ_TYPE_NONE); } EXPORT_SYMBOL(soc_pcmcia_disable_irqs); @@ -571,8 +571,8 @@ void soc_pcmcia_enable_irqs(struct soc_pcmcia_socket *skt, for (i = 0; i < nr; i++) if (irqs[i].sock == skt->nr) { - set_irq_type(irqs[i].irq, IRQT_RISING); - set_irq_type(irqs[i].irq, IRQT_BOTHEDGE); + set_irq_type(irqs[i].irq, IRQ_TYPE_EDGE_RISING); + set_irq_type(irqs[i].irq, IRQ_TYPE_EDGE_BOTH); } } EXPORT_SYMBOL(soc_pcmcia_enable_irqs); diff --git a/drivers/video/am200epd.c b/drivers/video/am200epd.c index 51e26c1f5e8b..32dd85126931 100644 --- a/drivers/video/am200epd.c +++ b/drivers/video/am200epd.c @@ -221,7 +221,7 @@ static int am200_setup_irq(struct fb_info *info) return retval; } - return set_irq_type(IRQ_GPIO(RDY_GPIO_PIN), IRQT_FALLING); + return set_irq_type(IRQ_GPIO(RDY_GPIO_PIN), IRQ_TYPE_EDGE_FALLING); } static void am200_set_rst(struct metronomefb_par *par, int state) diff --git a/drivers/video/omap/sossi.c b/drivers/video/omap/sossi.c index 81dbcf53cf0e..fafd0f26b90f 100644 --- a/drivers/video/omap/sossi.c +++ b/drivers/video/omap/sossi.c @@ -646,7 +646,7 @@ static int sossi_init(struct omapfb_device *fbdev) sossi_write_reg(SOSSI_INIT1_REG, l); if ((r = request_irq(INT_1610_SoSSI_MATCH, sossi_match_irq, - IRQT_FALLING, + IRQ_TYPE_EDGE_FALLING, "sossi_match", sossi.fbdev->dev)) < 0) { dev_err(sossi.fbdev->dev, "can't get SoSSI match IRQ\n"); goto err; -- cgit v1.2.1 From 3c26e17032e42cfbe606882288223ad6146e4c38 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Sun, 27 Jul 2008 02:34:45 -0700 Subject: avr32: some mmc/sd cleanups Minor cleanups for the MMC/SD support on avr32: - Make at32_add_device_mci() properly initialize "missing" platform data ... so boards like STK1002 won't try GPIO 0. - Switch over to gpio_is_valid() instead of testing for only one designated value. - Provide STK1002 platform data for the unlikely case that switches are set so first Ethernet controller isn't in use. (That's the only way to get card detect and writeprotect switch sensing on the STK1000.) And get rid of one "unused variable" warning. Signed-off-by: David Brownell Signed-off-by: Haavard Skinnemoen --- drivers/mmc/host/atmel-mci.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c index 82bbbe998169..992b4beb757c 100644 --- a/drivers/mmc/host/atmel-mci.c +++ b/drivers/mmc/host/atmel-mci.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include #include @@ -28,7 +29,6 @@ #include #include -#include #include "atmel-mci-regs.h" @@ -574,7 +574,7 @@ static int atmci_get_ro(struct mmc_host *mmc) int read_only = 0; struct atmel_mci *host = mmc_priv(mmc); - if (host->wp_pin >= 0) { + if (gpio_is_valid(host->wp_pin)) { read_only = gpio_get_value(host->wp_pin); dev_dbg(&mmc->class_dev, "card is %s\n", read_only ? "read-only" : "read-write"); @@ -636,7 +636,7 @@ static void atmci_detect_change(unsigned long data) * been freed. */ smp_rmb(); - if (host->detect_pin < 0) + if (!gpio_is_valid(host->detect_pin)) return; enable_irq(gpio_to_irq(host->detect_pin)); @@ -1051,7 +1051,7 @@ static int __init atmci_probe(struct platform_device *pdev) /* Assume card is present if we don't have a detect pin */ host->present = 1; - if (host->detect_pin >= 0) { + if (gpio_is_valid(host->detect_pin)) { if (gpio_request(host->detect_pin, "mmc_detect")) { dev_dbg(&mmc->class_dev, "no detect pin available\n"); host->detect_pin = -1; @@ -1059,7 +1059,7 @@ static int __init atmci_probe(struct platform_device *pdev) host->present = !gpio_get_value(host->detect_pin); } } - if (host->wp_pin >= 0) { + if (gpio_is_valid(host->wp_pin)) { if (gpio_request(host->wp_pin, "mmc_wp")) { dev_dbg(&mmc->class_dev, "no WP pin available\n"); host->wp_pin = -1; @@ -1070,7 +1070,7 @@ static int __init atmci_probe(struct platform_device *pdev) mmc_add_host(mmc); - if (host->detect_pin >= 0) { + if (gpio_is_valid(host->detect_pin)) { setup_timer(&host->detect_timer, atmci_detect_change, (unsigned long)host); @@ -1113,7 +1113,7 @@ static int __exit atmci_remove(struct platform_device *pdev) if (host) { /* Debugfs stuff is cleaned up by mmc core */ - if (host->detect_pin >= 0) { + if (gpio_is_valid(host->detect_pin)) { int pin = host->detect_pin; /* Make sure the timer doesn't enable the interrupt */ @@ -1133,7 +1133,7 @@ static int __exit atmci_remove(struct platform_device *pdev) mci_readl(host, SR); clk_disable(host->mck); - if (host->wp_pin >= 0) + if (gpio_is_valid(host->wp_pin)) gpio_free(host->wp_pin); free_irq(platform_get_irq(pdev, 0), host->mmc); -- cgit v1.2.1 From 2b142900784c6e38c8d39fa57d5f95ef08e735d8 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Sun, 27 Jul 2008 09:38:42 +0100 Subject: [SCSI] extend the last_sector_bug flag to cover more sectors The last_sector_bug flag was added to work around a bug in certain usb cardreaders, where they would crash if a multiple sector read included the last sector. The original implementation avoids this by e.g. splitting an 8 sector read which includes the last sector into a 7 sector read, and a single sector read for the last sector. The flag is enabled for all USB devices. This revealed a second bug in other usb cardreaders, which crash when they get a multiple sector read which stops 1 sector short of the last sector. Affected hardware includes the Kingston "MobileLite" external USB cardreader and the internal USB cardreader on the Asus EeePC. Extend the last_sector_bug workaround to ensure that any access which touches the last 8 hardware sectors of the device is a single sector long. Requests are shrunk as necessary to meet this constraint. This gives us a safety margin against potential unknown or future bugs affecting multi-sector access to the end of the device. The two known bugs only affect the last 2 sectors. However, they suggest that these devices are prone to fencepost errors and that multi-sector access to the end of the device is not well tested. Popular OS's use multi-sector accesses, but they rarely read the last few sectors. Linux (with udev & vol_id) automatically reads sectors from the end of the device on insertion. It is assumed that single sector accesses are more thoroughly tested during development. Signed-off-by: Alan Jenkins Tested-by: Alan Jenkins Signed-off-by: James Bottomley --- drivers/scsi/sd.c | 21 +++++++++++++++------ drivers/scsi/sd.h | 6 ++++++ 2 files changed, 21 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 8e08d51a0f05..e5e7d7856454 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -375,6 +375,7 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq) struct gendisk *disk = rq->rq_disk; struct scsi_disk *sdkp; sector_t block = rq->sector; + sector_t threshold; unsigned int this_count = rq->nr_sectors; unsigned int timeout = sdp->timeout; int ret; @@ -422,13 +423,21 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq) } /* - * Some devices (some sdcards for one) don't like it if the - * last sector gets read in a larger then 1 sector read. + * Some SD card readers can't handle multi-sector accesses which touch + * the last one or two hardware sectors. Split accesses as needed. */ - if (unlikely(sdp->last_sector_bug && - rq->nr_sectors > sdp->sector_size / 512 && - block + this_count == get_capacity(disk))) - this_count -= sdp->sector_size / 512; + threshold = get_capacity(disk) - SD_LAST_BUGGY_SECTORS * + (sdp->sector_size / 512); + + if (unlikely(sdp->last_sector_bug && block + this_count > threshold)) { + if (block < threshold) { + /* Access up to the threshold but not beyond */ + this_count = threshold - block; + } else { + /* Access only a single hardware sector */ + this_count = sdp->sector_size / 512; + } + } SCSI_LOG_HLQUEUE(2, scmd_printk(KERN_INFO, SCpnt, "block=%llu\n", (unsigned long long)block)); diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h index 550b2f70a1f8..95b9f06534d5 100644 --- a/drivers/scsi/sd.h +++ b/drivers/scsi/sd.h @@ -31,6 +31,12 @@ */ #define SD_BUF_SIZE 512 +/* + * Number of sectors at the end of the device to avoid multi-sector + * accesses to in the case of last_sector_bug + */ +#define SD_LAST_BUGGY_SECTORS 8 + struct scsi_disk { struct scsi_driver *driver; /* always &sd_template */ struct scsi_device *device; -- cgit v1.2.1 From cadbd4a5e36dde7e6c49b587b2c419103c0b7218 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Thu, 3 Jul 2008 23:47:27 -0700 Subject: [SCSI] replace __FUNCTION__ with __func__ [jejb: fixed up a ton of missed conversions. All of you are on notice this has happened, driver trees will now need to be rebased] Signed-off-by: Harvey Harrison Cc: SCSI List Signed-off-by: Andrew Morton Signed-off-by: James Bottomley --- drivers/message/fusion/mptbase.c | 24 ++++++------- drivers/message/fusion/mptctl.c | 4 +-- drivers/message/fusion/mptfc.c | 8 ++--- drivers/message/fusion/mptlan.c | 26 +++++++------- drivers/message/fusion/mptsas.c | 54 +++++++++++++++--------------- drivers/message/fusion/mptscsih.c | 4 +-- drivers/scsi/advansys.c | 2 +- drivers/scsi/aha152x.c | 12 +++---- drivers/scsi/aic94xx/aic94xx.h | 4 +-- drivers/scsi/aic94xx/aic94xx_hwi.c | 2 +- drivers/scsi/aic94xx/aic94xx_scb.c | 46 ++++++++++++------------- drivers/scsi/aic94xx/aic94xx_task.c | 2 +- drivers/scsi/aic94xx/aic94xx_tmf.c | 18 +++++----- drivers/scsi/arm/fas216.c | 4 +-- drivers/scsi/device_handler/scsi_dh_alua.c | 6 ++-- drivers/scsi/ibmvscsi/ibmvfc.h | 4 +-- drivers/scsi/ibmvscsi/ibmvstgt.c | 2 +- drivers/scsi/imm.c | 2 +- drivers/scsi/ipr.h | 6 ++-- drivers/scsi/libsas/sas_ata.c | 16 ++++----- drivers/scsi/libsas/sas_expander.c | 12 +++---- drivers/scsi/libsas/sas_port.c | 4 +-- drivers/scsi/libsas/sas_scsi_host.c | 30 ++++++++--------- drivers/scsi/libsrp.c | 2 +- drivers/scsi/lpfc/lpfc_init.c | 4 +-- drivers/scsi/lpfc/lpfc_scsi.c | 2 +- drivers/scsi/lpfc/lpfc_sli.c | 6 ++-- drivers/scsi/megaraid/mega_common.h | 2 +- drivers/scsi/megaraid/megaraid_mbox.c | 16 ++++----- drivers/scsi/megaraid/megaraid_mm.c | 4 +-- drivers/scsi/nsp32.c | 4 +-- drivers/scsi/nsp32_debug.c | 2 +- drivers/scsi/pcmcia/nsp_cs.c | 4 +-- drivers/scsi/pcmcia/nsp_debug.c | 2 +- drivers/scsi/ppa.c | 2 +- drivers/scsi/qla1280.c | 12 +++---- drivers/scsi/scsi_debug.c | 12 +++---- drivers/scsi/scsi_devinfo.c | 6 ++-- drivers/scsi/scsi_error.c | 26 +++++++------- drivers/scsi/scsi_lib.c | 6 ++-- drivers/scsi/scsi_netlink.c | 8 ++--- drivers/scsi/scsi_proc.c | 4 +-- drivers/scsi/scsi_scan.c | 12 +++---- drivers/scsi/scsi_tgt_priv.h | 2 +- drivers/scsi/scsi_transport_fc.c | 12 +++---- drivers/scsi/scsi_transport_sas.c | 4 +-- drivers/scsi/tmscsim.c | 8 ++--- drivers/scsi/wd7000.c | 8 ++--- drivers/scsi/zalon.c | 8 ++--- 49 files changed, 235 insertions(+), 235 deletions(-) (limited to 'drivers') diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index 34402c47027e..d6a0074b9dc3 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -273,12 +273,12 @@ mpt_fault_reset_work(struct work_struct *work) ioc_raw_state = mpt_GetIocState(ioc, 0); if ((ioc_raw_state & MPI_IOC_STATE_MASK) == MPI_IOC_STATE_FAULT) { printk(MYIOC_s_WARN_FMT "IOC is in FAULT state (%04xh)!!!\n", - ioc->name, ioc_raw_state & MPI_DOORBELL_DATA_MASK); + ioc->name, ioc_raw_state & MPI_DOORBELL_DATA_MASK); printk(MYIOC_s_WARN_FMT "Issuing HardReset from %s!!\n", - ioc->name, __FUNCTION__); + ioc->name, __func__); rc = mpt_HardResetHandler(ioc, CAN_SLEEP); printk(MYIOC_s_WARN_FMT "%s: HardReset: %s\n", ioc->name, - __FUNCTION__, (rc == 0) ? "success" : "failed"); + __func__, (rc == 0) ? "success" : "failed"); ioc_raw_state = mpt_GetIocState(ioc, 0); if ((ioc_raw_state & MPI_IOC_STATE_MASK) == MPI_IOC_STATE_FAULT) printk(MYIOC_s_WARN_FMT "IOC is in FAULT state after " @@ -356,7 +356,7 @@ mpt_turbo_reply(MPT_ADAPTER *ioc, u32 pa) if (!cb_idx || cb_idx >= MPT_MAX_PROTOCOL_DRIVERS || MptCallbacks[cb_idx] == NULL) { printk(MYIOC_s_WARN_FMT "%s: Invalid cb_idx (%d)!\n", - __FUNCTION__, ioc->name, cb_idx); + __func__, ioc->name, cb_idx); goto out; } @@ -420,7 +420,7 @@ mpt_reply(MPT_ADAPTER *ioc, u32 pa) if (!cb_idx || cb_idx >= MPT_MAX_PROTOCOL_DRIVERS || MptCallbacks[cb_idx] == NULL) { printk(MYIOC_s_WARN_FMT "%s: Invalid cb_idx (%d)!\n", - __FUNCTION__, ioc->name, cb_idx); + __func__, ioc->name, cb_idx); freeme = 0; goto out; } @@ -2434,7 +2434,7 @@ mpt_adapter_disable(MPT_ADAPTER *ioc) if (ioc->cached_fw != NULL) { ddlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: Pushing FW onto " - "adapter\n", __FUNCTION__, ioc->name)); + "adapter\n", __func__, ioc->name)); if ((ret = mpt_downloadboot(ioc, (MpiFwHeader_t *) ioc->cached_fw, CAN_SLEEP)) < 0) { printk(MYIOC_s_WARN_FMT @@ -3693,7 +3693,7 @@ mpt_diag_reset(MPT_ADAPTER *ioc, int ignore, int sleepFlag) if (ioc->pcidev->device == MPI_MANUFACTPAGE_DEVID_SAS1078) { drsprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: Doorbell=%p; 1078 reset " - "address=%p\n", ioc->name, __FUNCTION__, + "address=%p\n", ioc->name, __func__, &ioc->chip->Doorbell, &ioc->chip->Reset_1078)); CHIPREG_WRITE32(&ioc->chip->Reset_1078, 0x07); if (sleepFlag == CAN_SLEEP) @@ -4742,12 +4742,12 @@ mptbase_sas_persist_operation(MPT_ADAPTER *ioc, u8 persist_opcode) break; } - printk("%s: persist_opcode=%x\n",__FUNCTION__, persist_opcode); + printk("%s: persist_opcode=%x\n",__func__, persist_opcode); /* Get a MF for this command. */ if ((mf = mpt_get_msg_frame(mpt_base_index, ioc)) == NULL) { - printk("%s: no msg frames!\n",__FUNCTION__); + printk("%s: no msg frames!\n",__func__); return -1; } @@ -4771,13 +4771,13 @@ mptbase_sas_persist_operation(MPT_ADAPTER *ioc, u8 persist_opcode) (SasIoUnitControlReply_t *)ioc->persist_reply_frame; if (le16_to_cpu(sasIoUnitCntrReply->IOCStatus) != MPI_IOCSTATUS_SUCCESS) { printk("%s: IOCStatus=0x%X IOCLogInfo=0x%X\n", - __FUNCTION__, + __func__, sasIoUnitCntrReply->IOCStatus, sasIoUnitCntrReply->IOCLogInfo); return -1; } - printk("%s: success\n",__FUNCTION__); + printk("%s: success\n",__func__); return 0; } @@ -5784,7 +5784,7 @@ SendEventAck(MPT_ADAPTER *ioc, EventNotificationReply_t *evnp) if ((pAck = (EventAck_t *) mpt_get_msg_frame(mpt_base_index, ioc)) == NULL) { dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s, no msg frames!!\n", - ioc->name,__FUNCTION__)); + ioc->name,__func__)); return -1; } diff --git a/drivers/message/fusion/mptctl.c b/drivers/message/fusion/mptctl.c index a5920423e2b2..f5233f3d9eff 100644 --- a/drivers/message/fusion/mptctl.c +++ b/drivers/message/fusion/mptctl.c @@ -505,7 +505,7 @@ mptctl_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) event = le32_to_cpu(pEvReply->Event) & 0xFF; dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s() called\n", - ioc->name, __FUNCTION__)); + ioc->name, __func__)); if(async_queue == NULL) return 1; @@ -2482,7 +2482,7 @@ mptctl_hp_hostinfo(unsigned long arg, unsigned int data_size) */ if ((mf = mpt_get_msg_frame(mptctl_id, ioc)) == NULL) { dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s, no msg frames!!\n", - ioc->name,__FUNCTION__)); + ioc->name,__func__)); goto out; } diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c index b36cae9ec6db..c3c24fdf9fb6 100644 --- a/drivers/message/fusion/mptfc.c +++ b/drivers/message/fusion/mptfc.c @@ -231,28 +231,28 @@ static int mptfc_abort(struct scsi_cmnd *SCpnt) { return - mptfc_block_error_handler(SCpnt, mptscsih_abort, __FUNCTION__); + mptfc_block_error_handler(SCpnt, mptscsih_abort, __func__); } static int mptfc_dev_reset(struct scsi_cmnd *SCpnt) { return - mptfc_block_error_handler(SCpnt, mptscsih_dev_reset, __FUNCTION__); + mptfc_block_error_handler(SCpnt, mptscsih_dev_reset, __func__); } static int mptfc_bus_reset(struct scsi_cmnd *SCpnt) { return - mptfc_block_error_handler(SCpnt, mptscsih_bus_reset, __FUNCTION__); + mptfc_block_error_handler(SCpnt, mptscsih_bus_reset, __func__); } static int mptfc_host_reset(struct scsi_cmnd *SCpnt) { return - mptfc_block_error_handler(SCpnt, mptscsih_host_reset, __FUNCTION__); + mptfc_block_error_handler(SCpnt, mptscsih_host_reset, __func__); } static void diff --git a/drivers/message/fusion/mptlan.c b/drivers/message/fusion/mptlan.c index d709d92b7b30..a1abf95cf751 100644 --- a/drivers/message/fusion/mptlan.c +++ b/drivers/message/fusion/mptlan.c @@ -610,7 +610,7 @@ mpt_lan_send_turbo(struct net_device *dev, u32 tmsg) dioprintk((KERN_INFO MYNAM ": %s/%s: @%s, skb %p sent.\n", IOC_AND_NETDEV_NAMES_s_s(dev), - __FUNCTION__, sent)); + __func__, sent)); priv->SendCtl[ctx].skb = NULL; pci_unmap_single(mpt_dev->pcidev, priv->SendCtl[ctx].dma, @@ -676,7 +676,7 @@ mpt_lan_send_reply(struct net_device *dev, LANSendReply_t *pSendRep) dioprintk((KERN_INFO MYNAM ": %s/%s: @%s, skb %p sent.\n", IOC_AND_NETDEV_NAMES_s_s(dev), - __FUNCTION__, sent)); + __func__, sent)); priv->SendCtl[ctx].skb = NULL; pci_unmap_single(mpt_dev->pcidev, priv->SendCtl[ctx].dma, @@ -715,7 +715,7 @@ mpt_lan_sdu_send (struct sk_buff *skb, struct net_device *dev) u16 cur_naa = 0x1000; dioprintk((KERN_INFO MYNAM ": %s called, skb_addr = %p\n", - __FUNCTION__, skb)); + __func__, skb)); spin_lock_irqsave(&priv->txfidx_lock, flags); if (priv->mpt_txfidx_tail < 0) { @@ -723,7 +723,7 @@ mpt_lan_sdu_send (struct sk_buff *skb, struct net_device *dev) spin_unlock_irqrestore(&priv->txfidx_lock, flags); printk (KERN_ERR "%s: no tx context available: %u\n", - __FUNCTION__, priv->mpt_txfidx_tail); + __func__, priv->mpt_txfidx_tail); return 1; } @@ -733,7 +733,7 @@ mpt_lan_sdu_send (struct sk_buff *skb, struct net_device *dev) spin_unlock_irqrestore(&priv->txfidx_lock, flags); printk (KERN_ERR "%s: Unable to alloc request frame\n", - __FUNCTION__); + __func__); return 1; } @@ -1208,7 +1208,7 @@ mpt_lan_post_receive_buckets(struct mpt_lan_priv *priv) dioprintk((KERN_INFO MYNAM ": %s/%s: @%s, Start_buckets = %u, buckets_out = %u\n", IOC_AND_NETDEV_NAMES_s_s(dev), - __FUNCTION__, buckets, curr)); + __func__, buckets, curr)); max = (mpt_dev->req_sz - MPT_LAN_RECEIVE_POST_REQUEST_SIZE) / (MPT_LAN_TRANSACTION32_SIZE + sizeof(SGESimple64_t)); @@ -1217,9 +1217,9 @@ mpt_lan_post_receive_buckets(struct mpt_lan_priv *priv) mf = mpt_get_msg_frame(LanCtx, mpt_dev); if (mf == NULL) { printk (KERN_ERR "%s: Unable to alloc request frame\n", - __FUNCTION__); + __func__); dioprintk((KERN_ERR "%s: %u buckets remaining\n", - __FUNCTION__, buckets)); + __func__, buckets)); goto out; } pRecvReq = (LANReceivePostRequest_t *) mf; @@ -1244,7 +1244,7 @@ mpt_lan_post_receive_buckets(struct mpt_lan_priv *priv) spin_lock_irqsave(&priv->rxfidx_lock, flags); if (priv->mpt_rxfidx_tail < 0) { printk (KERN_ERR "%s: Can't alloc context\n", - __FUNCTION__); + __func__); spin_unlock_irqrestore(&priv->rxfidx_lock, flags); break; @@ -1267,7 +1267,7 @@ mpt_lan_post_receive_buckets(struct mpt_lan_priv *priv) if (skb == NULL) { printk (KERN_WARNING MYNAM "/%s: Can't alloc skb\n", - __FUNCTION__); + __func__); priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = ctx; spin_unlock_irqrestore(&priv->rxfidx_lock, flags); break; @@ -1305,7 +1305,7 @@ mpt_lan_post_receive_buckets(struct mpt_lan_priv *priv) if (pSimple == NULL) { /**/ printk (KERN_WARNING MYNAM "/%s: No buckets posted\n", -/**/ __FUNCTION__); +/**/ __func__); mpt_free_msg_frame(mpt_dev, mf); goto out; } @@ -1329,9 +1329,9 @@ mpt_lan_post_receive_buckets(struct mpt_lan_priv *priv) out: dioprintk((KERN_INFO MYNAM "/%s: End_buckets = %u, priv->buckets_out = %u\n", - __FUNCTION__, buckets, atomic_read(&priv->buckets_out))); + __func__, buckets, atomic_read(&priv->buckets_out))); dioprintk((KERN_INFO MYNAM "/%s: Posted %u buckets and received %u back\n", - __FUNCTION__, priv->total_posted, priv->total_received)); + __func__, priv->total_posted, priv->total_received)); clear_bit(0, &priv->post_buckets_active); } diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c index b1147aa7afde..12b732512e57 100644 --- a/drivers/message/fusion/mptsas.c +++ b/drivers/message/fusion/mptsas.c @@ -300,7 +300,7 @@ mptsas_port_delete(MPT_ADAPTER *ioc, struct mptsas_portinfo_details * port_detai phy_info = port_info->phy_info; dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: [%p]: num_phys=%02d " - "bitmask=0x%016llX\n", ioc->name, __FUNCTION__, port_details, + "bitmask=0x%016llX\n", ioc->name, __func__, port_details, port_details->num_phys, (unsigned long long) port_details->phy_bitmask)); @@ -411,7 +411,7 @@ mptsas_setup_wide_ports(MPT_ADAPTER *ioc, struct mptsas_portinfo *port_info) */ dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: [%p]: deleting phy = %d\n", - ioc->name, __FUNCTION__, port_details, i)); + ioc->name, __func__, port_details, i)); port_details->num_phys--; port_details->phy_bitmask &= ~ (1 << phy_info->phy_id); memset(&phy_info->attached, 0, sizeof(struct mptsas_devinfo)); @@ -497,7 +497,7 @@ mptsas_setup_wide_ports(MPT_ADAPTER *ioc, struct mptsas_portinfo *port_info) continue; dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: [%p]: phy_id=%02d num_phys=%02d " - "bitmask=0x%016llX\n", ioc->name, __FUNCTION__, + "bitmask=0x%016llX\n", ioc->name, __func__, port_details, i, port_details->num_phys, (unsigned long long)port_details->phy_bitmask)); dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "\t\tport = %p rphy=%p\n", @@ -553,7 +553,7 @@ mptsas_target_reset(MPT_ADAPTER *ioc, u8 channel, u8 id) if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) { dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s, no msg frames @%d!!\n", - ioc->name,__FUNCTION__, __LINE__)); + ioc->name,__func__, __LINE__)); return 0; } @@ -606,7 +606,7 @@ mptsas_target_reset_queue(MPT_ADAPTER *ioc, GFP_ATOMIC); if (!target_reset_list) { dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s, failed to allocate mem @%d..!!\n", - ioc->name,__FUNCTION__, __LINE__)); + ioc->name,__func__, __LINE__)); return; } @@ -673,7 +673,7 @@ mptsas_dev_reset_complete(MPT_ADAPTER *ioc) ev = kzalloc(sizeof(*ev), GFP_ATOMIC); if (!ev) { dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s, failed to allocate mem @%d..!!\n", - ioc->name,__FUNCTION__, __LINE__)); + ioc->name,__func__, __LINE__)); return; } @@ -1183,7 +1183,7 @@ static int mptsas_phy_reset(struct sas_phy *phy, int hard_reset) reply = (SasIoUnitControlReply_t *)ioc->sas_mgmt.reply; if (reply->IOCStatus != MPI_IOCSTATUS_SUCCESS) { printk(MYIOC_s_INFO_FMT "%s: IOCStatus=0x%X IOCLogInfo=0x%X\n", - ioc->name, __FUNCTION__, reply->IOCStatus, reply->IOCLogInfo); + ioc->name, __func__, reply->IOCStatus, reply->IOCLogInfo); error = -ENXIO; goto out_unlock; } @@ -1270,14 +1270,14 @@ static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, if (!rsp) { printk(MYIOC_s_ERR_FMT "%s: the smp response space is missing\n", - ioc->name, __FUNCTION__); + ioc->name, __func__); return -EINVAL; } /* do we need to support multiple segments? */ if (req->bio->bi_vcnt > 1 || rsp->bio->bi_vcnt > 1) { printk(MYIOC_s_ERR_FMT "%s: multiple segments req %u %u, rsp %u %u\n", - ioc->name, __FUNCTION__, req->bio->bi_vcnt, req->data_len, + ioc->name, __func__, req->bio->bi_vcnt, req->data_len, rsp->bio->bi_vcnt, rsp->data_len); return -EINVAL; } @@ -1343,7 +1343,7 @@ static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, timeleft = wait_for_completion_timeout(&ioc->sas_mgmt.done, 10 * HZ); if (!timeleft) { - printk(MYIOC_s_ERR_FMT "%s: smp timeout!\n", ioc->name, __FUNCTION__); + printk(MYIOC_s_ERR_FMT "%s: smp timeout!\n", ioc->name, __func__); /* On timeout reset the board */ mpt_HardResetHandler(ioc, CAN_SLEEP); ret = -ETIMEDOUT; @@ -1361,7 +1361,7 @@ static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, rsp->data_len -= smprep->ResponseDataLength; } else { printk(MYIOC_s_ERR_FMT "%s: smp passthru reply failed to be returned\n", - ioc->name, __FUNCTION__); + ioc->name, __func__); ret = -ENXIO; } unmap: @@ -2006,7 +2006,7 @@ static int mptsas_probe_one_phy(struct device *dev, if (error) { dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: exit at line=%d\n", ioc->name, - __FUNCTION__, __LINE__)); + __func__, __LINE__)); goto out; } mptsas_set_port(ioc, phy_info, port); @@ -2076,7 +2076,7 @@ static int mptsas_probe_one_phy(struct device *dev, if (!rphy) { dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: exit at line=%d\n", ioc->name, - __FUNCTION__, __LINE__)); + __func__, __LINE__)); goto out; } @@ -2085,7 +2085,7 @@ static int mptsas_probe_one_phy(struct device *dev, if (error) { dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: exit at line=%d\n", ioc->name, - __FUNCTION__, __LINE__)); + __func__, __LINE__)); sas_rphy_free(rphy); goto out; } @@ -2613,7 +2613,7 @@ mptsas_hotplug_work(struct work_struct *work) (ev->channel << 8) + ev->id)) { dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: exit at line=%d\n", ioc->name, - __FUNCTION__, __LINE__)); + __func__, __LINE__)); break; } phy_info = mptsas_find_phyinfo_by_sas_address( @@ -2633,20 +2633,20 @@ mptsas_hotplug_work(struct work_struct *work) if (!phy_info){ dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: exit at line=%d\n", ioc->name, - __FUNCTION__, __LINE__)); + __func__, __LINE__)); break; } if (!phy_info->port_details) { dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: exit at line=%d\n", ioc->name, - __FUNCTION__, __LINE__)); + __func__, __LINE__)); break; } rphy = mptsas_get_rphy(phy_info); if (!rphy) { dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: exit at line=%d\n", ioc->name, - __FUNCTION__, __LINE__)); + __func__, __LINE__)); break; } @@ -2654,7 +2654,7 @@ mptsas_hotplug_work(struct work_struct *work) if (!port) { dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: exit at line=%d\n", ioc->name, - __FUNCTION__, __LINE__)); + __func__, __LINE__)); break; } @@ -2665,7 +2665,7 @@ mptsas_hotplug_work(struct work_struct *work) if (!vtarget) { dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: exit at line=%d\n", ioc->name, - __FUNCTION__, __LINE__)); + __func__, __LINE__)); break; } @@ -2720,7 +2720,7 @@ mptsas_hotplug_work(struct work_struct *work) (ev->channel << 8) + ev->id)) { dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: exit at line=%d\n", ioc->name, - __FUNCTION__, __LINE__)); + __func__, __LINE__)); break; } @@ -2732,7 +2732,7 @@ mptsas_hotplug_work(struct work_struct *work) if (!phy_info || !phy_info->port_details) { dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: exit at line=%d\n", ioc->name, - __FUNCTION__, __LINE__)); + __func__, __LINE__)); break; } @@ -2744,7 +2744,7 @@ mptsas_hotplug_work(struct work_struct *work) if (!vtarget) { dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: exit at line=%d\n", ioc->name, - __FUNCTION__, __LINE__)); + __func__, __LINE__)); break; } /* @@ -2767,7 +2767,7 @@ mptsas_hotplug_work(struct work_struct *work) if (mptsas_get_rphy(phy_info)) { dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: exit at line=%d\n", ioc->name, - __FUNCTION__, __LINE__)); + __func__, __LINE__)); if (ev->channel) printk("%d\n", __LINE__); break; } @@ -2776,7 +2776,7 @@ mptsas_hotplug_work(struct work_struct *work) if (!port) { dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: exit at line=%d\n", ioc->name, - __FUNCTION__, __LINE__)); + __func__, __LINE__)); break; } memcpy(&phy_info->attached, &sas_device, @@ -2801,7 +2801,7 @@ mptsas_hotplug_work(struct work_struct *work) if (!rphy) { dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: exit at line=%d\n", ioc->name, - __FUNCTION__, __LINE__)); + __func__, __LINE__)); break; /* non-fatal: an rphy can be added later */ } @@ -2809,7 +2809,7 @@ mptsas_hotplug_work(struct work_struct *work) if (sas_rphy_add(rphy)) { dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: exit at line=%d\n", ioc->name, - __FUNCTION__, __LINE__)); + __func__, __LINE__)); sas_rphy_free(rphy); break; } diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c index d142b6b4b976..9f9354fd3516 100644 --- a/drivers/message/fusion/mptscsih.c +++ b/drivers/message/fusion/mptscsih.c @@ -461,7 +461,7 @@ mptscsih_issue_sep_command(MPT_ADAPTER *ioc, VirtTarget *vtarget, if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) { dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: no msg frames!!\n", - ioc->name,__FUNCTION__)); + ioc->name,__func__)); return; } @@ -2187,7 +2187,7 @@ mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *m (ioc->debug_level & MPT_DEBUG_TM )) printk("%s: ha=%d [%d:%d:0] task_type=0x%02X " "iocstatus=0x%04X\n\tloginfo=0x%08X response_code=0x%02X " - "term_cmnds=%d\n", __FUNCTION__, ioc->id, pScsiTmReply->Bus, + "term_cmnds=%d\n", __func__, ioc->id, pScsiTmReply->Bus, pScsiTmReply->TargetID, pScsiTmReq->TaskType, le16_to_cpu(pScsiTmReply->IOCStatus), le32_to_cpu(pScsiTmReply->IOCLogInfo),pScsiTmReply->ResponseCode, diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 8591585e5cc5..218777bfc143 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -2278,7 +2278,7 @@ do { \ #define ASC_DBG(lvl, format, arg...) { \ if (asc_dbglvl >= (lvl)) \ printk(KERN_DEBUG "%s: %s: " format, DRV_NAME, \ - __FUNCTION__ , ## arg); \ + __func__ , ## arg); \ } #define ASC_DBG_PRT_SCSI_HOST(lvl, s) \ diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c index 0899cb61e3dd..b5a868d85eb4 100644 --- a/drivers/scsi/aha152x.c +++ b/drivers/scsi/aha152x.c @@ -288,20 +288,20 @@ static LIST_HEAD(aha152x_host_list); #define DO_LOCK(flags) \ do { \ if(spin_is_locked(&QLOCK)) { \ - DPRINTK(debug_intr, DEBUG_LEAD "(%s:%d) already locked at %s:%d\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__, QLOCKER, QLOCKERL); \ + DPRINTK(debug_intr, DEBUG_LEAD "(%s:%d) already locked at %s:%d\n", CMDINFO(CURRENT_SC), __func__, __LINE__, QLOCKER, QLOCKERL); \ } \ - DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) locking\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__); \ + DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) locking\n", CMDINFO(CURRENT_SC), __func__, __LINE__); \ spin_lock_irqsave(&QLOCK,flags); \ - DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) locked\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__); \ - QLOCKER=__FUNCTION__; \ + DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) locked\n", CMDINFO(CURRENT_SC), __func__, __LINE__); \ + QLOCKER=__func__; \ QLOCKERL=__LINE__; \ } while(0) #define DO_UNLOCK(flags) \ do { \ - DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) unlocking (locked at %s:%d)\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__, QLOCKER, QLOCKERL); \ + DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) unlocking (locked at %s:%d)\n", CMDINFO(CURRENT_SC), __func__, __LINE__, QLOCKER, QLOCKERL); \ spin_unlock_irqrestore(&QLOCK,flags); \ - DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) unlocked\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__); \ + DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) unlocked\n", CMDINFO(CURRENT_SC), __func__, __LINE__); \ QLOCKER="(not locked)"; \ QLOCKERL=0; \ } while(0) diff --git a/drivers/scsi/aic94xx/aic94xx.h b/drivers/scsi/aic94xx/aic94xx.h index 2ef459e9cda1..2863a9d22851 100644 --- a/drivers/scsi/aic94xx/aic94xx.h +++ b/drivers/scsi/aic94xx/aic94xx.h @@ -39,9 +39,9 @@ #ifdef ASD_ENTER_EXIT #define ENTER printk(KERN_NOTICE "%s: ENTER %s\n", ASD_DRIVER_NAME, \ - __FUNCTION__) + __func__) #define EXIT printk(KERN_NOTICE "%s: --EXIT %s\n", ASD_DRIVER_NAME, \ - __FUNCTION__) + __func__) #else #define ENTER #define EXIT diff --git a/drivers/scsi/aic94xx/aic94xx_hwi.c b/drivers/scsi/aic94xx/aic94xx_hwi.c index 83a78222896d..eb9dc3195fdf 100644 --- a/drivers/scsi/aic94xx/aic94xx_hwi.c +++ b/drivers/scsi/aic94xx/aic94xx_hwi.c @@ -1359,7 +1359,7 @@ int asd_enable_phys(struct asd_ha_struct *asd_ha, const u8 phy_mask) struct asd_ascb *ascb_list; if (!phy_mask) { - asd_printk("%s called with phy_mask of 0!?\n", __FUNCTION__); + asd_printk("%s called with phy_mask of 0!?\n", __func__); return 0; } diff --git a/drivers/scsi/aic94xx/aic94xx_scb.c b/drivers/scsi/aic94xx/aic94xx_scb.c index 46643319c520..ca55013b6ae5 100644 --- a/drivers/scsi/aic94xx/aic94xx_scb.c +++ b/drivers/scsi/aic94xx/aic94xx_scb.c @@ -211,7 +211,7 @@ static void asd_form_port(struct asd_ha_struct *asd_ha, struct asd_phy *phy) phy->asd_port = port; } ASD_DPRINTK("%s: updating phy_mask 0x%x for phy%d\n", - __FUNCTION__, phy->asd_port->phy_mask, sas_phy->id); + __func__, phy->asd_port->phy_mask, sas_phy->id); asd_update_port_links(asd_ha, phy); spin_unlock_irqrestore(&asd_ha->asd_ports_lock, flags); } @@ -294,7 +294,7 @@ static void asd_link_reset_err_tasklet(struct asd_ascb *ascb, struct asd_ascb *cp = asd_ascb_alloc_list(ascb->ha, &num, GFP_ATOMIC); if (!cp) { - asd_printk("%s: out of memory\n", __FUNCTION__); + asd_printk("%s: out of memory\n", __func__); goto out; } ASD_DPRINTK("phy%d: retries:0 performing link reset seq\n", @@ -446,7 +446,7 @@ static void escb_tasklet_complete(struct asd_ascb *ascb, struct domain_device *failed_dev = NULL; ASD_DPRINTK("%s: REQ_TASK_ABORT, reason=0x%X\n", - __FUNCTION__, dl->status_block[3]); + __func__, dl->status_block[3]); /* * Find the task that caused the abort and abort it first. @@ -474,7 +474,7 @@ static void escb_tasklet_complete(struct asd_ascb *ascb, if (!failed_dev) { ASD_DPRINTK("%s: Can't find task (tc=%d) to abort!\n", - __FUNCTION__, tc_abort); + __func__, tc_abort); goto out; } @@ -502,7 +502,7 @@ static void escb_tasklet_complete(struct asd_ascb *ascb, conn_handle = *((u16*)(&dl->status_block[1])); conn_handle = le16_to_cpu(conn_handle); - ASD_DPRINTK("%s: REQ_DEVICE_RESET, reason=0x%X\n", __FUNCTION__, + ASD_DPRINTK("%s: REQ_DEVICE_RESET, reason=0x%X\n", __func__, dl->status_block[3]); /* Find the last pending task for the device... */ @@ -522,7 +522,7 @@ static void escb_tasklet_complete(struct asd_ascb *ascb, if (!last_dev_task) { ASD_DPRINTK("%s: Device reset for idle device %d?\n", - __FUNCTION__, conn_handle); + __func__, conn_handle); goto out; } @@ -549,10 +549,10 @@ static void escb_tasklet_complete(struct asd_ascb *ascb, goto out; } case SIGNAL_NCQ_ERROR: - ASD_DPRINTK("%s: SIGNAL_NCQ_ERROR\n", __FUNCTION__); + ASD_DPRINTK("%s: SIGNAL_NCQ_ERROR\n", __func__); goto out; case CLEAR_NCQ_ERROR: - ASD_DPRINTK("%s: CLEAR_NCQ_ERROR\n", __FUNCTION__); + ASD_DPRINTK("%s: CLEAR_NCQ_ERROR\n", __func__); goto out; } @@ -560,26 +560,26 @@ static void escb_tasklet_complete(struct asd_ascb *ascb, switch (sb_opcode) { case BYTES_DMAED: - ASD_DPRINTK("%s: phy%d: BYTES_DMAED\n", __FUNCTION__, phy_id); + ASD_DPRINTK("%s: phy%d: BYTES_DMAED\n", __func__, phy_id); asd_bytes_dmaed_tasklet(ascb, dl, edb, phy_id); break; case PRIMITIVE_RECVD: - ASD_DPRINTK("%s: phy%d: PRIMITIVE_RECVD\n", __FUNCTION__, + ASD_DPRINTK("%s: phy%d: PRIMITIVE_RECVD\n", __func__, phy_id); asd_primitive_rcvd_tasklet(ascb, dl, phy_id); break; case PHY_EVENT: - ASD_DPRINTK("%s: phy%d: PHY_EVENT\n", __FUNCTION__, phy_id); + ASD_DPRINTK("%s: phy%d: PHY_EVENT\n", __func__, phy_id); asd_phy_event_tasklet(ascb, dl); break; case LINK_RESET_ERROR: - ASD_DPRINTK("%s: phy%d: LINK_RESET_ERROR\n", __FUNCTION__, + ASD_DPRINTK("%s: phy%d: LINK_RESET_ERROR\n", __func__, phy_id); asd_link_reset_err_tasklet(ascb, dl, phy_id); break; case TIMER_EVENT: ASD_DPRINTK("%s: phy%d: TIMER_EVENT, lost dw sync\n", - __FUNCTION__, phy_id); + __func__, phy_id); asd_turn_led(asd_ha, phy_id, 0); /* the device is gone */ sas_phy_disconnected(sas_phy); @@ -587,7 +587,7 @@ static void escb_tasklet_complete(struct asd_ascb *ascb, sas_ha->notify_port_event(sas_phy, PORTE_TIMER_EVENT); break; default: - ASD_DPRINTK("%s: phy%d: unknown event:0x%x\n", __FUNCTION__, + ASD_DPRINTK("%s: phy%d: unknown event:0x%x\n", __func__, phy_id, sb_opcode); ASD_DPRINTK("edb is 0x%x! dl->opcode is 0x%x\n", edb, dl->opcode); @@ -654,7 +654,7 @@ static void control_phy_tasklet_complete(struct asd_ascb *ascb, if (status != 0) { ASD_DPRINTK("%s: phy%d status block opcode:0x%x\n", - __FUNCTION__, phy_id, status); + __func__, phy_id, status); goto out; } @@ -663,7 +663,7 @@ static void control_phy_tasklet_complete(struct asd_ascb *ascb, asd_ha->hw_prof.enabled_phys &= ~(1 << phy_id); asd_turn_led(asd_ha, phy_id, 0); asd_control_led(asd_ha, phy_id, 0); - ASD_DPRINTK("%s: disable phy%d\n", __FUNCTION__, phy_id); + ASD_DPRINTK("%s: disable phy%d\n", __func__, phy_id); break; case ENABLE_PHY: @@ -673,40 +673,40 @@ static void control_phy_tasklet_complete(struct asd_ascb *ascb, get_lrate_mode(phy, oob_mode); asd_turn_led(asd_ha, phy_id, 1); ASD_DPRINTK("%s: phy%d, lrate:0x%x, proto:0x%x\n", - __FUNCTION__, phy_id,phy->sas_phy.linkrate, + __func__, phy_id,phy->sas_phy.linkrate, phy->sas_phy.iproto); } else if (oob_status & CURRENT_SPINUP_HOLD) { asd_ha->hw_prof.enabled_phys |= (1 << phy_id); asd_turn_led(asd_ha, phy_id, 1); - ASD_DPRINTK("%s: phy%d, spinup hold\n", __FUNCTION__, + ASD_DPRINTK("%s: phy%d, spinup hold\n", __func__, phy_id); } else if (oob_status & CURRENT_ERR_MASK) { asd_turn_led(asd_ha, phy_id, 0); ASD_DPRINTK("%s: phy%d: error: oob status:0x%02x\n", - __FUNCTION__, phy_id, oob_status); + __func__, phy_id, oob_status); } else if (oob_status & (CURRENT_HOT_PLUG_CNCT | CURRENT_DEVICE_PRESENT)) { asd_ha->hw_prof.enabled_phys |= (1 << phy_id); asd_turn_led(asd_ha, phy_id, 1); ASD_DPRINTK("%s: phy%d: hot plug or device present\n", - __FUNCTION__, phy_id); + __func__, phy_id); } else { asd_ha->hw_prof.enabled_phys |= (1 << phy_id); asd_turn_led(asd_ha, phy_id, 0); ASD_DPRINTK("%s: phy%d: no device present: " "oob_status:0x%x\n", - __FUNCTION__, phy_id, oob_status); + __func__, phy_id, oob_status); } break; case RELEASE_SPINUP_HOLD: case PHY_NO_OP: case EXECUTE_HARD_RESET: - ASD_DPRINTK("%s: phy%d: sub_func:0x%x\n", __FUNCTION__, + ASD_DPRINTK("%s: phy%d: sub_func:0x%x\n", __func__, phy_id, control_phy->sub_func); /* XXX finish */ break; default: - ASD_DPRINTK("%s: phy%d: sub_func:0x%x?\n", __FUNCTION__, + ASD_DPRINTK("%s: phy%d: sub_func:0x%x?\n", __func__, phy_id, control_phy->sub_func); break; } diff --git a/drivers/scsi/aic94xx/aic94xx_task.c b/drivers/scsi/aic94xx/aic94xx_task.c index 326765c9caf8..75d20f72501f 100644 --- a/drivers/scsi/aic94xx/aic94xx_task.c +++ b/drivers/scsi/aic94xx/aic94xx_task.c @@ -320,7 +320,7 @@ Again: case TC_RESUME: case TC_PARTIAL_SG_LIST: default: - ASD_DPRINTK("%s: dl opcode: 0x%x?\n", __FUNCTION__, opcode); + ASD_DPRINTK("%s: dl opcode: 0x%x?\n", __func__, opcode); break; } diff --git a/drivers/scsi/aic94xx/aic94xx_tmf.c b/drivers/scsi/aic94xx/aic94xx_tmf.c index 633ff40c736a..d4640ef6d44f 100644 --- a/drivers/scsi/aic94xx/aic94xx_tmf.c +++ b/drivers/scsi/aic94xx/aic94xx_tmf.c @@ -75,12 +75,12 @@ static void asd_clear_nexus_tasklet_complete(struct asd_ascb *ascb, struct done_list_struct *dl) { struct tasklet_completion_status *tcs = ascb->uldd_task; - ASD_DPRINTK("%s: here\n", __FUNCTION__); + ASD_DPRINTK("%s: here\n", __func__); if (!del_timer(&ascb->timer)) { - ASD_DPRINTK("%s: couldn't delete timer\n", __FUNCTION__); + ASD_DPRINTK("%s: couldn't delete timer\n", __func__); return; } - ASD_DPRINTK("%s: opcode: 0x%x\n", __FUNCTION__, dl->opcode); + ASD_DPRINTK("%s: opcode: 0x%x\n", __func__, dl->opcode); tcs->dl_opcode = dl->opcode; complete(ascb->completion); asd_ascb_free(ascb); @@ -91,7 +91,7 @@ static void asd_clear_nexus_timedout(unsigned long data) struct asd_ascb *ascb = (void *)data; struct tasklet_completion_status *tcs = ascb->uldd_task; - ASD_DPRINTK("%s: here\n", __FUNCTION__); + ASD_DPRINTK("%s: here\n", __func__); tcs->dl_opcode = TMF_RESP_FUNC_FAILED; complete(ascb->completion); } @@ -103,7 +103,7 @@ static void asd_clear_nexus_timedout(unsigned long data) DECLARE_COMPLETION_ONSTACK(completion); \ DECLARE_TCS(tcs); \ \ - ASD_DPRINTK("%s: PRE\n", __FUNCTION__); \ + ASD_DPRINTK("%s: PRE\n", __func__); \ res = 1; \ ascb = asd_ascb_alloc_list(asd_ha, &res, GFP_KERNEL); \ if (!ascb) \ @@ -115,12 +115,12 @@ static void asd_clear_nexus_timedout(unsigned long data) scb->header.opcode = CLEAR_NEXUS #define CLEAR_NEXUS_POST \ - ASD_DPRINTK("%s: POST\n", __FUNCTION__); \ + ASD_DPRINTK("%s: POST\n", __func__); \ res = asd_enqueue_internal(ascb, asd_clear_nexus_tasklet_complete, \ asd_clear_nexus_timedout); \ if (res) \ goto out_err; \ - ASD_DPRINTK("%s: clear nexus posted, waiting...\n", __FUNCTION__); \ + ASD_DPRINTK("%s: clear nexus posted, waiting...\n", __func__); \ wait_for_completion(&completion); \ res = tcs.dl_opcode; \ if (res == TC_NO_ERROR) \ @@ -417,7 +417,7 @@ int asd_abort_task(struct sas_task *task) if (task->task_state_flags & SAS_TASK_STATE_DONE) { spin_unlock_irqrestore(&task->task_state_lock, flags); res = TMF_RESP_FUNC_COMPLETE; - ASD_DPRINTK("%s: task 0x%p done\n", __FUNCTION__, task); + ASD_DPRINTK("%s: task 0x%p done\n", __func__, task); goto out_done; } spin_unlock_irqrestore(&task->task_state_lock, flags); @@ -481,7 +481,7 @@ int asd_abort_task(struct sas_task *task) if (task->task_state_flags & SAS_TASK_STATE_DONE) { spin_unlock_irqrestore(&task->task_state_lock, flags); res = TMF_RESP_FUNC_COMPLETE; - ASD_DPRINTK("%s: task 0x%p done\n", __FUNCTION__, task); + ASD_DPRINTK("%s: task 0x%p done\n", __func__, task); goto out_done; } spin_unlock_irqrestore(&task->task_state_lock, flags); diff --git a/drivers/scsi/arm/fas216.c b/drivers/scsi/arm/fas216.c index a715632e19d4..477542602284 100644 --- a/drivers/scsi/arm/fas216.c +++ b/drivers/scsi/arm/fas216.c @@ -240,7 +240,7 @@ static void __fas216_checkmagic(FAS216_Info *info, const char *func) panic("scsi memory space corrupted in %s", func); } } -#define fas216_checkmagic(info) __fas216_checkmagic((info), __FUNCTION__) +#define fas216_checkmagic(info) __fas216_checkmagic((info), __func__) #else #define fas216_checkmagic(info) #endif @@ -2658,7 +2658,7 @@ int fas216_eh_host_reset(struct scsi_cmnd *SCpnt) fas216_checkmagic(info); printk("scsi%d.%c: %s: resetting host\n", - info->host->host_no, '0' + SCpnt->device->id, __FUNCTION__); + info->host->host_no, '0' + SCpnt->device->id, __func__); /* * Reset the SCSI chip. diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c index 6e464488bcab..fcdd73f25625 100644 --- a/drivers/scsi/device_handler/scsi_dh_alua.c +++ b/drivers/scsi/device_handler/scsi_dh_alua.c @@ -97,14 +97,14 @@ static struct request *get_alua_req(struct scsi_device *sdev, if (!rq) { sdev_printk(KERN_INFO, sdev, - "%s: blk_get_request failed\n", __FUNCTION__); + "%s: blk_get_request failed\n", __func__); return NULL; } if (buflen && blk_rq_map_kern(q, rq, buffer, buflen, GFP_NOIO)) { blk_put_request(rq); sdev_printk(KERN_INFO, sdev, - "%s: blk_rq_map_kern failed\n", __FUNCTION__); + "%s: blk_rq_map_kern failed\n", __func__); return NULL; } @@ -553,7 +553,7 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h) /* Resubmit with the correct length */ if (realloc_buffer(h, len)) { sdev_printk(KERN_WARNING, sdev, - "%s: kmalloc buffer failed\n",__FUNCTION__); + "%s: kmalloc buffer failed\n",__func__); /* Temporary failure, bypass */ return SCSI_DH_DEV_TEMP_BUSY; } diff --git a/drivers/scsi/ibmvscsi/ibmvfc.h b/drivers/scsi/ibmvscsi/ibmvfc.h index de2c34abddf4..4bf6e374f076 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.h +++ b/drivers/scsi/ibmvscsi/ibmvfc.h @@ -704,8 +704,8 @@ struct ibmvfc_host { dev_err((vhost)->dev, ##__VA_ARGS__); \ } while (0) -#define ENTER DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Entering %s\n", __FUNCTION__)) -#define LEAVE DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Leaving %s\n", __FUNCTION__)) +#define ENTER DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Entering %s\n", __func__)) +#define LEAVE DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Leaving %s\n", __func__)) #ifdef CONFIG_SCSI_IBMVFC_TRACE #define ibmvfc_create_trace_file(kobj, attr) sysfs_create_bin_file(kobj, attr) diff --git a/drivers/scsi/ibmvscsi/ibmvstgt.c b/drivers/scsi/ibmvscsi/ibmvstgt.c index 3b9514c8f1f1..d6f68f22cf74 100644 --- a/drivers/scsi/ibmvscsi/ibmvstgt.c +++ b/drivers/scsi/ibmvscsi/ibmvstgt.c @@ -55,7 +55,7 @@ /* tmp - will replace with SCSI logging stuff */ #define eprintk(fmt, args...) \ do { \ - printk("%s(%d) " fmt, __FUNCTION__, __LINE__, ##args); \ + printk("%s(%d) " fmt, __func__, __LINE__, ##args); \ } while (0) /* #define dprintk eprintk */ #define dprintk(fmt, args...) diff --git a/drivers/scsi/imm.c b/drivers/scsi/imm.c index f97d172844be..c2a9a13d788f 100644 --- a/drivers/scsi/imm.c +++ b/drivers/scsi/imm.c @@ -163,7 +163,7 @@ static int imm_proc_info(struct Scsi_Host *host, char *buffer, char **start, #if IMM_DEBUG > 0 #define imm_fail(x,y) printk("imm: imm_fail(%i) from %s at line %d\n",\ - y, __FUNCTION__, __LINE__); imm_fail_func(x,y); + y, __func__, __LINE__); imm_fail_func(x,y); static inline void imm_fail_func(imm_struct *dev, int error_code) #else diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h index d93156671e93..4871dd1f2582 100644 --- a/drivers/scsi/ipr.h +++ b/drivers/scsi/ipr.h @@ -1403,10 +1403,10 @@ struct ipr_ucode_image_header { } #define ipr_trace ipr_dbg("%s: %s: Line: %d\n",\ - __FILE__, __FUNCTION__, __LINE__) + __FILE__, __func__, __LINE__) -#define ENTER IPR_DBG_CMD(printk(KERN_INFO IPR_NAME": Entering %s\n", __FUNCTION__)) -#define LEAVE IPR_DBG_CMD(printk(KERN_INFO IPR_NAME": Leaving %s\n", __FUNCTION__)) +#define ENTER IPR_DBG_CMD(printk(KERN_INFO IPR_NAME": Entering %s\n", __func__)) +#define LEAVE IPR_DBG_CMD(printk(KERN_INFO IPR_NAME": Leaving %s\n", __func__)) #define ipr_err_separator \ ipr_err("----------------------------------------------------------\n") diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c index 744f06d04a36..48ee8c7f5bdd 100644 --- a/drivers/scsi/libsas/sas_ata.c +++ b/drivers/scsi/libsas/sas_ata.c @@ -74,7 +74,7 @@ static enum ata_completion_errors sas_to_ata_err(struct task_status_struct *ts) case SAS_OPEN_TO: case SAS_OPEN_REJECT: SAS_DPRINTK("%s: Saw error %d. What to do?\n", - __FUNCTION__, ts->stat); + __func__, ts->stat); return AC_ERR_OTHER; case SAS_ABORTED_TASK: @@ -115,7 +115,7 @@ static void sas_ata_task_done(struct sas_task *task) } else if (stat->stat != SAM_STAT_GOOD) { ac = sas_to_ata_err(stat); if (ac) { - SAS_DPRINTK("%s: SAS error %x\n", __FUNCTION__, + SAS_DPRINTK("%s: SAS error %x\n", __func__, stat->stat); /* We saw a SAS error. Send a vague error. */ qc->err_mask = ac; @@ -244,20 +244,20 @@ static void sas_ata_phy_reset(struct ata_port *ap) res = i->dft->lldd_I_T_nexus_reset(dev); if (res != TMF_RESP_FUNC_COMPLETE) - SAS_DPRINTK("%s: Unable to reset I T nexus?\n", __FUNCTION__); + SAS_DPRINTK("%s: Unable to reset I T nexus?\n", __func__); switch (dev->sata_dev.command_set) { case ATA_COMMAND_SET: - SAS_DPRINTK("%s: Found ATA device.\n", __FUNCTION__); + SAS_DPRINTK("%s: Found ATA device.\n", __func__); ap->link.device[0].class = ATA_DEV_ATA; break; case ATAPI_COMMAND_SET: - SAS_DPRINTK("%s: Found ATAPI device.\n", __FUNCTION__); + SAS_DPRINTK("%s: Found ATAPI device.\n", __func__); ap->link.device[0].class = ATA_DEV_ATAPI; break; default: SAS_DPRINTK("%s: Unknown SATA command set: %d.\n", - __FUNCTION__, + __func__, dev->sata_dev.command_set); ap->link.device[0].class = ATA_DEV_UNKNOWN; break; @@ -299,7 +299,7 @@ static int sas_ata_scr_write(struct ata_port *ap, unsigned int sc_reg_in, { struct domain_device *dev = ap->private_data; - SAS_DPRINTK("STUB %s\n", __FUNCTION__); + SAS_DPRINTK("STUB %s\n", __func__); switch (sc_reg_in) { case SCR_STATUS: dev->sata_dev.sstatus = val; @@ -324,7 +324,7 @@ static int sas_ata_scr_read(struct ata_port *ap, unsigned int sc_reg_in, { struct domain_device *dev = ap->private_data; - SAS_DPRINTK("STUB %s\n", __FUNCTION__); + SAS_DPRINTK("STUB %s\n", __func__); switch (sc_reg_in) { case SCR_STATUS: *val = dev->sata_dev.sstatus; diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index aefd865a5788..3da02e436788 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -121,7 +121,7 @@ static int smp_execute_task(struct domain_device *dev, void *req, int req_size, break; } else { SAS_DPRINTK("%s: task to dev %016llx response: 0x%x " - "status 0x%x\n", __FUNCTION__, + "status 0x%x\n", __func__, SAS_ADDR(dev->sas_addr), task->task_status.resp, task->task_status.stat); @@ -1279,7 +1279,7 @@ static int sas_configure_present(struct domain_device *dev, int phy_id, goto out; } else if (res != SMP_RESP_FUNC_ACC) { SAS_DPRINTK("%s: dev %016llx phy 0x%x index 0x%x " - "result 0x%x\n", __FUNCTION__, + "result 0x%x\n", __func__, SAS_ADDR(dev->sas_addr), phy_id, i, res); goto out; } @@ -1901,7 +1901,7 @@ int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, if (!rsp) { printk("%s: space for a smp response is missing\n", - __FUNCTION__); + __func__); return -EINVAL; } @@ -1914,20 +1914,20 @@ int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, if (type != SAS_EDGE_EXPANDER_DEVICE && type != SAS_FANOUT_EXPANDER_DEVICE) { printk("%s: can we send a smp request to a device?\n", - __FUNCTION__); + __func__); return -EINVAL; } dev = sas_find_dev_by_rphy(rphy); if (!dev) { - printk("%s: fail to find a domain_device?\n", __FUNCTION__); + printk("%s: fail to find a domain_device?\n", __func__); return -EINVAL; } /* do we need to support multiple segments? */ if (req->bio->bi_vcnt > 1 || rsp->bio->bi_vcnt > 1) { printk("%s: multiple segments req %u %u, rsp %u %u\n", - __FUNCTION__, req->bio->bi_vcnt, req->data_len, + __func__, req->bio->bi_vcnt, req->data_len, rsp->bio->bi_vcnt, rsp->data_len); return -EINVAL; } diff --git a/drivers/scsi/libsas/sas_port.c b/drivers/scsi/libsas/sas_port.c index 39ae68a3b0ef..139935a121b4 100644 --- a/drivers/scsi/libsas/sas_port.c +++ b/drivers/scsi/libsas/sas_port.c @@ -50,7 +50,7 @@ static void sas_form_port(struct asd_sas_phy *phy) sas_deform_port(phy); else { SAS_DPRINTK("%s: phy%d belongs to port%d already(%d)!\n", - __FUNCTION__, phy->id, phy->port->id, + __func__, phy->id, phy->port->id, phy->port->num_phys); return; } @@ -78,7 +78,7 @@ static void sas_form_port(struct asd_sas_phy *phy) if (i >= sas_ha->num_phys) { printk(KERN_NOTICE "%s: couldn't find a free port, bug?\n", - __FUNCTION__); + __func__); spin_unlock_irqrestore(&sas_ha->phy_port_lock, flags); return; } diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index 601ec5b6a7f6..a8e3ef309070 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -343,7 +343,7 @@ static enum task_disposition sas_scsi_find_task(struct sas_task *task) flags); SAS_DPRINTK("%s: task 0x%p aborted from " "task_queue\n", - __FUNCTION__, task); + __func__, task); return TASK_IS_ABORTED; } } @@ -351,13 +351,13 @@ static enum task_disposition sas_scsi_find_task(struct sas_task *task) } for (i = 0; i < 5; i++) { - SAS_DPRINTK("%s: aborting task 0x%p\n", __FUNCTION__, task); + SAS_DPRINTK("%s: aborting task 0x%p\n", __func__, task); res = si->dft->lldd_abort_task(task); spin_lock_irqsave(&task->task_state_lock, flags); if (task->task_state_flags & SAS_TASK_STATE_DONE) { spin_unlock_irqrestore(&task->task_state_lock, flags); - SAS_DPRINTK("%s: task 0x%p is done\n", __FUNCTION__, + SAS_DPRINTK("%s: task 0x%p is done\n", __func__, task); return TASK_IS_DONE; } @@ -365,24 +365,24 @@ static enum task_disposition sas_scsi_find_task(struct sas_task *task) if (res == TMF_RESP_FUNC_COMPLETE) { SAS_DPRINTK("%s: task 0x%p is aborted\n", - __FUNCTION__, task); + __func__, task); return TASK_IS_ABORTED; } else if (si->dft->lldd_query_task) { SAS_DPRINTK("%s: querying task 0x%p\n", - __FUNCTION__, task); + __func__, task); res = si->dft->lldd_query_task(task); switch (res) { case TMF_RESP_FUNC_SUCC: SAS_DPRINTK("%s: task 0x%p at LU\n", - __FUNCTION__, task); + __func__, task); return TASK_IS_AT_LU; case TMF_RESP_FUNC_COMPLETE: SAS_DPRINTK("%s: task 0x%p not at LU\n", - __FUNCTION__, task); + __func__, task); return TASK_IS_NOT_AT_LU; case TMF_RESP_FUNC_FAILED: SAS_DPRINTK("%s: task 0x%p failed to abort\n", - __FUNCTION__, task); + __func__, task); return TASK_ABORT_FAILED; } @@ -545,7 +545,7 @@ Again: if (need_reset) { SAS_DPRINTK("%s: task 0x%p requests reset\n", - __FUNCTION__, task); + __func__, task); goto reset; } @@ -556,13 +556,13 @@ Again: switch (res) { case TASK_IS_DONE: - SAS_DPRINTK("%s: task 0x%p is done\n", __FUNCTION__, + SAS_DPRINTK("%s: task 0x%p is done\n", __func__, task); sas_eh_finish_cmd(cmd); continue; case TASK_IS_ABORTED: SAS_DPRINTK("%s: task 0x%p is aborted\n", - __FUNCTION__, task); + __func__, task); sas_eh_finish_cmd(cmd); continue; case TASK_IS_AT_LU: @@ -633,7 +633,7 @@ Again: } return list_empty(work_q); clear_q: - SAS_DPRINTK("--- Exit %s -- clear_q\n", __FUNCTION__); + SAS_DPRINTK("--- Exit %s -- clear_q\n", __func__); list_for_each_entry_safe(cmd, n, work_q, eh_entry) sas_eh_finish_cmd(cmd); @@ -650,7 +650,7 @@ void sas_scsi_recover_host(struct Scsi_Host *shost) list_splice_init(&shost->eh_cmd_q, &eh_work_q); spin_unlock_irqrestore(shost->host_lock, flags); - SAS_DPRINTK("Enter %s\n", __FUNCTION__); + SAS_DPRINTK("Enter %s\n", __func__); /* * Deal with commands that still have SAS tasks (i.e. they didn't * complete via the normal sas_task completion mechanism) @@ -669,7 +669,7 @@ void sas_scsi_recover_host(struct Scsi_Host *shost) out: scsi_eh_flush_done_q(&ha->eh_done_q); - SAS_DPRINTK("--- Exit %s\n", __FUNCTION__); + SAS_DPRINTK("--- Exit %s\n", __func__); return; } @@ -990,7 +990,7 @@ int __sas_task_abort(struct sas_task *task) if (task->task_state_flags & SAS_TASK_STATE_ABORTED || task->task_state_flags & SAS_TASK_STATE_DONE) { spin_unlock_irqrestore(&task->task_state_lock, flags); - SAS_DPRINTK("%s: Task %p already finished.\n", __FUNCTION__, + SAS_DPRINTK("%s: Task %p already finished.\n", __func__, task); return 0; } diff --git a/drivers/scsi/libsrp.c b/drivers/scsi/libsrp.c index 6d6a76e65a6c..15e2d132e8b9 100644 --- a/drivers/scsi/libsrp.c +++ b/drivers/scsi/libsrp.c @@ -39,7 +39,7 @@ enum srp_task_attributes { /* tmp - will replace with SCSI logging stuff */ #define eprintk(fmt, args...) \ do { \ - printk("%s(%d) " fmt, __FUNCTION__, __LINE__, ##args); \ + printk("%s(%d) " fmt, __func__, __LINE__, ##args); \ } while (0) /* #define dprintk eprintk */ #define dprintk(fmt, args...) diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 5b6e5395c8eb..d51a2a4b43eb 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -2083,7 +2083,7 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) if (iocbq_entry == NULL) { printk(KERN_ERR "%s: only allocated %d iocbs of " "expected %d count. Unloading driver.\n", - __FUNCTION__, i, LPFC_IOCB_LIST_CNT); + __func__, i, LPFC_IOCB_LIST_CNT); error = -ENOMEM; goto out_free_iocbq; } @@ -2093,7 +2093,7 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) kfree (iocbq_entry); printk(KERN_ERR "%s: failed to allocate IOTAG. " "Unloading driver.\n", - __FUNCTION__); + __func__); error = -ENOMEM; goto out_free_iocbq; } diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index c94da4f2b8a6..1bcebbd3dfac 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -341,7 +341,7 @@ lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { printk(KERN_ERR "%s: Too many sg segments from " "dma_map_sg. Config %d, seg_cnt %d", - __FUNCTION__, phba->cfg_sg_seg_cnt, + __func__, phba->cfg_sg_seg_cnt, lpfc_cmd->seg_cnt); scsi_dma_unmap(scsi_cmnd); return 1; diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index f40aa7b905f7..50fe07646738 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -219,7 +219,7 @@ lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd) case CMD_IOCB_LOGENTRY_CN: case CMD_IOCB_LOGENTRY_ASYNC_CN: printk("%s - Unhandled SLI-3 Command x%x\n", - __FUNCTION__, iocb_cmnd); + __func__, iocb_cmnd); type = LPFC_UNKNOWN_IOCB; break; default: @@ -1715,7 +1715,7 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba, rspiocbp = __lpfc_sli_get_iocbq(phba); if (rspiocbp == NULL) { printk(KERN_ERR "%s: out of buffers! Failing " - "completion.\n", __FUNCTION__); + "completion.\n", __func__); break; } @@ -3793,7 +3793,7 @@ lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport, break; default: printk(KERN_ERR "%s: Unknown context cmd type, value %d\n", - __FUNCTION__, ctx_cmd); + __func__, ctx_cmd); break; } diff --git a/drivers/scsi/megaraid/mega_common.h b/drivers/scsi/megaraid/mega_common.h index f62ed468ada0..5ead1283a844 100644 --- a/drivers/scsi/megaraid/mega_common.h +++ b/drivers/scsi/megaraid/mega_common.h @@ -265,7 +265,7 @@ typedef struct { #define ASSERT(expression) \ if (!(expression)) { \ ASSERT_ACTION("assertion failed:(%s), file: %s, line: %d:%s\n", \ - #expression, __FILE__, __LINE__, __FUNCTION__); \ + #expression, __FILE__, __LINE__, __func__); \ } #else #define ASSERT(expression) diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c index 70a0f11f48b2..805bb61dde18 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.c +++ b/drivers/scsi/megaraid/megaraid_mbox.c @@ -458,7 +458,7 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) if (adapter == NULL) { con_log(CL_ANN, (KERN_WARNING - "megaraid: out of memory, %s %d.\n", __FUNCTION__, __LINE__)); + "megaraid: out of memory, %s %d.\n", __func__, __LINE__)); goto out_probe_one; } @@ -1002,7 +1002,7 @@ megaraid_alloc_cmd_packets(adapter_t *adapter) if (!raid_dev->una_mbox64) { con_log(CL_ANN, (KERN_WARNING - "megaraid: out of memory, %s %d\n", __FUNCTION__, + "megaraid: out of memory, %s %d\n", __func__, __LINE__)); return -1; } @@ -1030,7 +1030,7 @@ megaraid_alloc_cmd_packets(adapter_t *adapter) if (!adapter->ibuf) { con_log(CL_ANN, (KERN_WARNING - "megaraid: out of memory, %s %d\n", __FUNCTION__, + "megaraid: out of memory, %s %d\n", __func__, __LINE__)); goto out_free_common_mbox; @@ -1052,7 +1052,7 @@ megaraid_alloc_cmd_packets(adapter_t *adapter) if (adapter->kscb_list == NULL) { con_log(CL_ANN, (KERN_WARNING - "megaraid: out of memory, %s %d\n", __FUNCTION__, + "megaraid: out of memory, %s %d\n", __func__, __LINE__)); goto out_free_ibuf; } @@ -1060,7 +1060,7 @@ megaraid_alloc_cmd_packets(adapter_t *adapter) // memory allocation for our command packets if (megaraid_mbox_setup_dma_pools(adapter) != 0) { con_log(CL_ANN, (KERN_WARNING - "megaraid: out of memory, %s %d\n", __FUNCTION__, + "megaraid: out of memory, %s %d\n", __func__, __LINE__)); goto out_free_scb_list; } @@ -2981,7 +2981,7 @@ megaraid_mbox_product_info(adapter_t *adapter) if (pinfo == NULL) { con_log(CL_ANN, (KERN_WARNING - "megaraid: out of memory, %s %d\n", __FUNCTION__, + "megaraid: out of memory, %s %d\n", __func__, __LINE__)); return -1; @@ -3508,7 +3508,7 @@ megaraid_cmm_register(adapter_t *adapter) if (adapter->uscb_list == NULL) { con_log(CL_ANN, (KERN_WARNING - "megaraid: out of memory, %s %d\n", __FUNCTION__, + "megaraid: out of memory, %s %d\n", __func__, __LINE__)); return -1; } @@ -3879,7 +3879,7 @@ megaraid_sysfs_alloc_resources(adapter_t *adapter) !raid_dev->sysfs_buffer) { con_log(CL_ANN, (KERN_WARNING - "megaraid: out of memory, %s %d\n", __FUNCTION__, + "megaraid: out of memory, %s %d\n", __func__, __LINE__)); rval = -ENOMEM; diff --git a/drivers/scsi/megaraid/megaraid_mm.c b/drivers/scsi/megaraid/megaraid_mm.c index ac3b280c2a72..f680561d2c6f 100644 --- a/drivers/scsi/megaraid/megaraid_mm.c +++ b/drivers/scsi/megaraid/megaraid_mm.c @@ -929,7 +929,7 @@ mraid_mm_register_adp(mraid_mmadp_t *lld_adp) !adapter->pthru_dma_pool) { con_log(CL_ANN, (KERN_WARNING - "megaraid cmm: out of memory, %s %d\n", __FUNCTION__, + "megaraid cmm: out of memory, %s %d\n", __func__, __LINE__)); rval = (-ENOMEM); @@ -957,7 +957,7 @@ mraid_mm_register_adp(mraid_mmadp_t *lld_adp) con_log(CL_ANN, (KERN_WARNING "megaraid cmm: out of memory, %s %d\n", - __FUNCTION__, __LINE__)); + __func__, __LINE__)); rval = (-ENOMEM); diff --git a/drivers/scsi/nsp32.c b/drivers/scsi/nsp32.c index 7fed35372150..edf9fdb3cb3c 100644 --- a/drivers/scsi/nsp32.c +++ b/drivers/scsi/nsp32.c @@ -299,9 +299,9 @@ static struct scsi_host_template nsp32_template = { #else # define NSP32_DEBUG_MASK 0xffffff # define nsp32_msg(type, args...) \ - nsp32_message (__FUNCTION__, __LINE__, (type), args) + nsp32_message (__func__, __LINE__, (type), args) # define nsp32_dbg(mask, args...) \ - nsp32_dmessage(__FUNCTION__, __LINE__, (mask), args) + nsp32_dmessage(__func__, __LINE__, (mask), args) #endif #define NSP32_DEBUG_QUEUECOMMAND BIT(0) diff --git a/drivers/scsi/nsp32_debug.c b/drivers/scsi/nsp32_debug.c index ef3c59cbcff6..2fb3fb58858d 100644 --- a/drivers/scsi/nsp32_debug.c +++ b/drivers/scsi/nsp32_debug.c @@ -88,7 +88,7 @@ static void print_commandk (unsigned char *command) int i,s; // printk(KERN_DEBUG); print_opcodek(command[0]); - /*printk(KERN_DEBUG "%s ", __FUNCTION__);*/ + /*printk(KERN_DEBUG "%s ", __func__);*/ if ((command[0] >> 5) == 6 || (command[0] >> 5) == 7 ) { s = 12; /* vender specific */ diff --git a/drivers/scsi/pcmcia/nsp_cs.c b/drivers/scsi/pcmcia/nsp_cs.c index 5082ca3c6876..a221b6ef9fa9 100644 --- a/drivers/scsi/pcmcia/nsp_cs.c +++ b/drivers/scsi/pcmcia/nsp_cs.c @@ -107,9 +107,9 @@ static nsp_hw_data nsp_data_base; /* attach <-> detect glue */ #else # define NSP_DEBUG_MASK 0xffffff # define nsp_msg(type, args...) \ - nsp_cs_message (__FUNCTION__, __LINE__, (type), args) + nsp_cs_message (__func__, __LINE__, (type), args) # define nsp_dbg(mask, args...) \ - nsp_cs_dmessage(__FUNCTION__, __LINE__, (mask), args) + nsp_cs_dmessage(__func__, __LINE__, (mask), args) #endif #define NSP_DEBUG_QUEUECOMMAND BIT(0) diff --git a/drivers/scsi/pcmcia/nsp_debug.c b/drivers/scsi/pcmcia/nsp_debug.c index 2f75fe6e35a7..3c6ef64fcbff 100644 --- a/drivers/scsi/pcmcia/nsp_debug.c +++ b/drivers/scsi/pcmcia/nsp_debug.c @@ -90,7 +90,7 @@ static void print_commandk (unsigned char *command) int i, s; printk(KERN_DEBUG); print_opcodek(command[0]); - /*printk(KERN_DEBUG "%s ", __FUNCTION__);*/ + /*printk(KERN_DEBUG "%s ", __func__);*/ if ((command[0] >> 5) == 6 || (command[0] >> 5) == 7 ) { s = 12; /* vender specific */ diff --git a/drivers/scsi/ppa.c b/drivers/scsi/ppa.c index f655ae320b48..8aa0bd987e29 100644 --- a/drivers/scsi/ppa.c +++ b/drivers/scsi/ppa.c @@ -171,7 +171,7 @@ static int device_check(ppa_struct *dev); #if PPA_DEBUG > 0 #define ppa_fail(x,y) printk("ppa: ppa_fail(%i) from %s at line %d\n",\ - y, __FUNCTION__, __LINE__); ppa_fail_func(x,y); + y, __func__, __LINE__); ppa_fail_func(x,y); static inline void ppa_fail_func(ppa_struct *dev, int error_code) #else static inline void ppa_fail(ppa_struct *dev, int error_code) diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c index 3754ab87f89a..37f9ba0cd798 100644 --- a/drivers/scsi/qla1280.c +++ b/drivers/scsi/qla1280.c @@ -1695,7 +1695,7 @@ qla1280_load_firmware_dma(struct scsi_qla_host *ha) risc_code_size = *ql1280_board_tbl[ha->devnum].fwlen; dprintk(1, "%s: DMA RISC code (%i) words\n", - __FUNCTION__, risc_code_size); + __func__, risc_code_size); num = 0; while (risc_code_size > 0) { @@ -1721,7 +1721,7 @@ qla1280_load_firmware_dma(struct scsi_qla_host *ha) mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff; mb[6] = pci_dma_hi32(ha->request_dma) >> 16; dprintk(2, "%s: op=%d 0x%p = 0x%4x,0x%4x,0x%4x,0x%4x\n", - __FUNCTION__, mb[0], + __func__, mb[0], (void *)(long)ha->request_dma, mb[6], mb[7], mb[2], mb[3]); err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 | @@ -1753,10 +1753,10 @@ qla1280_load_firmware_dma(struct scsi_qla_host *ha) if (tbuf[i] != sp[i] && warn++ < 10) { printk(KERN_ERR "%s: FW compare error @ " "byte(0x%x) loop#=%x\n", - __FUNCTION__, i, num); + __func__, i, num); printk(KERN_ERR "%s: FWbyte=%x " "FWfromChip=%x\n", - __FUNCTION__, sp[i], tbuf[i]); + __func__, sp[i], tbuf[i]); /*break; */ } } @@ -1781,7 +1781,7 @@ qla1280_start_firmware(struct scsi_qla_host *ha) int err; dprintk(1, "%s: Verifying checksum of loaded RISC code.\n", - __FUNCTION__); + __func__); /* Verify checksum of loaded RISC code. */ mb[0] = MBC_VERIFY_CHECKSUM; @@ -1794,7 +1794,7 @@ qla1280_start_firmware(struct scsi_qla_host *ha) } /* Start firmware execution. */ - dprintk(1, "%s: start firmware running.\n", __FUNCTION__); + dprintk(1, "%s: start firmware running.\n", __func__); mb[0] = MBC_EXECUTE_FIRMWARE; mb[1] = *ql1280_board_tbl[ha->devnum].fwstart; err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]); diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 01d11a01ffbf..27c633f55794 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -1753,7 +1753,7 @@ static struct sdebug_dev_info * devInfoReg(struct scsi_device * sdev) open_devip = sdebug_device_create(sdbg_host, GFP_ATOMIC); if (!open_devip) { printk(KERN_ERR "%s: out of memory at line %d\n", - __FUNCTION__, __LINE__); + __func__, __LINE__); return NULL; } } @@ -2656,7 +2656,7 @@ static int sdebug_add_adapter(void) sdbg_host = kzalloc(sizeof(*sdbg_host),GFP_KERNEL); if (NULL == sdbg_host) { printk(KERN_ERR "%s: out of memory at line %d\n", - __FUNCTION__, __LINE__); + __func__, __LINE__); return -ENOMEM; } @@ -2667,7 +2667,7 @@ static int sdebug_add_adapter(void) sdbg_devinfo = sdebug_device_create(sdbg_host, GFP_KERNEL); if (!sdbg_devinfo) { printk(KERN_ERR "%s: out of memory at line %d\n", - __FUNCTION__, __LINE__); + __func__, __LINE__); error = -ENOMEM; goto clean; } @@ -2987,7 +2987,7 @@ static int sdebug_driver_probe(struct device * dev) hpnt = scsi_host_alloc(&sdebug_driver_template, sizeof(sdbg_host)); if (NULL == hpnt) { - printk(KERN_ERR "%s: scsi_register failed\n", __FUNCTION__); + printk(KERN_ERR "%s: scsi_register failed\n", __func__); error = -ENODEV; return error; } @@ -3002,7 +3002,7 @@ static int sdebug_driver_probe(struct device * dev) error = scsi_add_host(hpnt, &sdbg_host->dev); if (error) { - printk(KERN_ERR "%s: scsi_add_host failed\n", __FUNCTION__); + printk(KERN_ERR "%s: scsi_add_host failed\n", __func__); error = -ENODEV; scsi_host_put(hpnt); } else @@ -3021,7 +3021,7 @@ static int sdebug_driver_remove(struct device * dev) if (!sdbg_host) { printk(KERN_ERR "%s: Unable to locate host info\n", - __FUNCTION__); + __func__); return -ENODEV; } diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c index a235802f2981..4969e4ec75ea 100644 --- a/drivers/scsi/scsi_devinfo.c +++ b/drivers/scsi/scsi_devinfo.c @@ -272,7 +272,7 @@ static void scsi_strcpy_devinfo(char *name, char *to, size_t to_length, } if (from_length > to_length) printk(KERN_WARNING "%s: %s string '%s' is too long\n", - __FUNCTION__, name, from); + __func__, name, from); } /** @@ -298,7 +298,7 @@ static int scsi_dev_info_list_add(int compatible, char *vendor, char *model, devinfo = kmalloc(sizeof(*devinfo), GFP_KERNEL); if (!devinfo) { - printk(KERN_ERR "%s: no memory\n", __FUNCTION__); + printk(KERN_ERR "%s: no memory\n", __func__); return -ENOMEM; } @@ -363,7 +363,7 @@ static int scsi_dev_info_list_add_str(char *dev_list) strflags = strsep(&next, next_check); if (!model || !strflags) { printk(KERN_ERR "%s: bad dev info string '%s' '%s'" - " '%s'\n", __FUNCTION__, vendor, model, + " '%s'\n", __func__, vendor, model, strflags); res = -EINVAL; } else diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 171b82d748cf..880051c89bde 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -139,7 +139,7 @@ void scsi_add_timer(struct scsi_cmnd *scmd, int timeout, scmd->eh_timeout.function = (void (*)(unsigned long)) complete; SCSI_LOG_ERROR_RECOVERY(5, printk("%s: scmd: %p, time:" - " %d, (%p)\n", __FUNCTION__, + " %d, (%p)\n", __func__, scmd, timeout, complete)); add_timer(&scmd->eh_timeout); @@ -163,7 +163,7 @@ int scsi_delete_timer(struct scsi_cmnd *scmd) rtn = del_timer(&scmd->eh_timeout); SCSI_LOG_ERROR_RECOVERY(5, printk("%s: scmd: %p," - " rtn: %d\n", __FUNCTION__, + " rtn: %d\n", __func__, scmd, rtn)); scmd->eh_timeout.data = (unsigned long)NULL; @@ -233,7 +233,7 @@ int scsi_block_when_processing_errors(struct scsi_device *sdev) online = scsi_device_online(sdev); - SCSI_LOG_ERROR_RECOVERY(5, printk("%s: rtn: %d\n", __FUNCTION__, + SCSI_LOG_ERROR_RECOVERY(5, printk("%s: rtn: %d\n", __func__, online)); return online; @@ -271,7 +271,7 @@ static inline void scsi_eh_prt_fail_stats(struct Scsi_Host *shost, SCSI_LOG_ERROR_RECOVERY(3, sdev_printk(KERN_INFO, sdev, "%s: cmds failed: %d, cancel: %d\n", - __FUNCTION__, cmd_failed, + __func__, cmd_failed, cmd_cancel)); cmd_cancel = 0; cmd_failed = 0; @@ -473,7 +473,7 @@ static void scsi_eh_done(struct scsi_cmnd *scmd) SCSI_LOG_ERROR_RECOVERY(3, printk("%s scmd: %p result: %x\n", - __FUNCTION__, scmd, scmd->result)); + __func__, scmd, scmd->result)); eh_action = scmd->device->host->eh_action; if (eh_action) @@ -490,7 +490,7 @@ static int scsi_try_host_reset(struct scsi_cmnd *scmd) int rtn; SCSI_LOG_ERROR_RECOVERY(3, printk("%s: Snd Host RST\n", - __FUNCTION__)); + __func__)); if (!scmd->device->host->hostt->eh_host_reset_handler) return FAILED; @@ -519,7 +519,7 @@ static int scsi_try_bus_reset(struct scsi_cmnd *scmd) int rtn; SCSI_LOG_ERROR_RECOVERY(3, printk("%s: Snd Bus RST\n", - __FUNCTION__)); + __func__)); if (!scmd->device->host->hostt->eh_bus_reset_handler) return FAILED; @@ -774,7 +774,7 @@ static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, unsigned char *cmnd, SCSI_LOG_ERROR_RECOVERY(3, printk("%s: scmd: %p, timeleft: %ld\n", - __FUNCTION__, scmd, timeleft)); + __func__, scmd, timeleft)); /* * If there is time left scsi_eh_done got called, and we will @@ -786,7 +786,7 @@ static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, unsigned char *cmnd, rtn = scsi_eh_completed_normally(scmd); SCSI_LOG_ERROR_RECOVERY(3, printk("%s: scsi_eh_completed_normally %x\n", - __FUNCTION__, rtn)); + __func__, rtn)); switch (rtn) { case SUCCESS: @@ -921,7 +921,7 @@ retry_tur: rtn = scsi_send_eh_cmnd(scmd, tur_command, 6, SENSE_TIMEOUT, 0); SCSI_LOG_ERROR_RECOVERY(3, printk("%s: scmd %p rtn %x\n", - __FUNCTION__, scmd, rtn)); + __func__, scmd, rtn)); switch (rtn) { case NEEDS_RETRY: @@ -1304,7 +1304,7 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd) if (!scsi_device_online(scmd->device)) { SCSI_LOG_ERROR_RECOVERY(5, printk("%s: device offline - report" " as SUCCESS\n", - __FUNCTION__)); + __func__)); return SUCCESS; } @@ -1519,7 +1519,7 @@ static void scsi_restart_operations(struct Scsi_Host *shost) * ioctls to queued block devices. */ SCSI_LOG_ERROR_RECOVERY(3, printk("%s: waking up host to restart\n", - __FUNCTION__)); + __func__)); spin_lock_irqsave(shost->host_lock, flags); if (scsi_host_set_state(shost, SHOST_RUNNING)) @@ -1843,7 +1843,7 @@ scsi_reset_provider(struct scsi_device *dev, int flag) */ SCSI_LOG_ERROR_RECOVERY(3, printk("%s: waking up host to restart after TMF\n", - __FUNCTION__)); + __func__)); wake_up(&shost->host_wait); diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 6d62be664d55..ff5d56b3ee4d 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1395,7 +1395,7 @@ static void scsi_kill_request(struct request *req, struct request_queue *q) if (unlikely(cmd == NULL)) { printk(KERN_CRIT "impossible request in %s.\n", - __FUNCTION__); + __func__); BUG(); } @@ -1519,7 +1519,7 @@ static void scsi_request_fn(struct request_queue *q) printk(KERN_CRIT "impossible request in %s.\n" "please mail a stack trace to " "linux-scsi@vger.kernel.org\n", - __FUNCTION__); + __func__); blk_dump_rq_flags(req, "foo"); BUG(); } @@ -2529,7 +2529,7 @@ void *scsi_kmap_atomic_sg(struct scatterlist *sgl, int sg_count, if (unlikely(i == sg_count)) { printk(KERN_ERR "%s: Bytes in sg: %zu, requested offset %zu, " "elements %d\n", - __FUNCTION__, sg_len, *offset, sg_count); + __func__, sg_len, *offset, sg_count); WARN_ON(1); return NULL; } diff --git a/drivers/scsi/scsi_netlink.c b/drivers/scsi/scsi_netlink.c index 370c78cc1cb5..ae7ed9a22662 100644 --- a/drivers/scsi/scsi_netlink.c +++ b/drivers/scsi/scsi_netlink.c @@ -55,7 +55,7 @@ scsi_nl_rcv_msg(struct sk_buff *skb) if ((nlh->nlmsg_len < (sizeof(*nlh) + sizeof(*hdr))) || (skb->len < nlh->nlmsg_len)) { printk(KERN_WARNING "%s: discarding partial skb\n", - __FUNCTION__); + __func__); return; } @@ -82,7 +82,7 @@ scsi_nl_rcv_msg(struct sk_buff *skb) if (nlh->nlmsg_len < (sizeof(*nlh) + hdr->msglen)) { printk(KERN_WARNING "%s: discarding partial message\n", - __FUNCTION__); + __func__); return; } @@ -139,7 +139,7 @@ scsi_netlink_init(void) error = netlink_register_notifier(&scsi_netlink_notifier); if (error) { printk(KERN_ERR "%s: register of event handler failed - %d\n", - __FUNCTION__, error); + __func__, error); return; } @@ -148,7 +148,7 @@ scsi_netlink_init(void) THIS_MODULE); if (!scsi_nl_sock) { printk(KERN_ERR "%s: register of recieve handler failed\n", - __FUNCTION__); + __func__); netlink_unregister_notifier(&scsi_netlink_notifier); } diff --git a/drivers/scsi/scsi_proc.c b/drivers/scsi/scsi_proc.c index e4a0d2f9b357..c6a904a45bf9 100644 --- a/drivers/scsi/scsi_proc.c +++ b/drivers/scsi/scsi_proc.c @@ -114,7 +114,7 @@ void scsi_proc_hostdir_add(struct scsi_host_template *sht) sht->proc_dir = proc_mkdir(sht->proc_name, proc_scsi); if (!sht->proc_dir) printk(KERN_ERR "%s: proc_mkdir failed for %s\n", - __FUNCTION__, sht->proc_name); + __func__, sht->proc_name); else sht->proc_dir->owner = sht->module; } @@ -157,7 +157,7 @@ void scsi_proc_host_add(struct Scsi_Host *shost) sht->proc_dir, proc_scsi_read, shost); if (!p) { printk(KERN_ERR "%s: Failed to register host %d in" - "%s\n", __FUNCTION__, shost->host_no, + "%s\n", __func__, shost->host_no, sht->proc_name); return; } diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index b7b74489fce7..84b4879cff11 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -318,7 +318,7 @@ out_device_destroy: put_device(&sdev->sdev_gendev); out: if (display_failure_msg) - printk(ALLOC_FAILURE_MSG, __FUNCTION__); + printk(ALLOC_FAILURE_MSG, __func__); return NULL; } @@ -404,7 +404,7 @@ static struct scsi_target *scsi_alloc_target(struct device *parent, starget = kzalloc(size, GFP_KERNEL); if (!starget) { - printk(KERN_ERR "%s: allocation failure\n", __FUNCTION__); + printk(KERN_ERR "%s: allocation failure\n", __func__); return NULL; } dev = &starget->dev; @@ -1337,7 +1337,7 @@ static int scsi_report_lun_scan(struct scsi_target *starget, int bflags, lun_data = kmalloc(length, GFP_ATOMIC | (sdev->host->unchecked_isa_dma ? __GFP_DMA : 0)); if (!lun_data) { - printk(ALLOC_FAILURE_MSG, __FUNCTION__); + printk(ALLOC_FAILURE_MSG, __func__); goto out; } @@ -1649,7 +1649,7 @@ int scsi_scan_host_selected(struct Scsi_Host *shost, unsigned int channel, { SCSI_LOG_SCAN_BUS(3, shost_printk (KERN_INFO, shost, "%s: <%u:%u:%u>\n", - __FUNCTION__, channel, id, lun)); + __func__, channel, id, lun)); if (((channel != SCAN_WILD_CARD) && (channel > shost->max_channel)) || ((id != SCAN_WILD_CARD) && (id >= shost->max_id)) || @@ -1703,7 +1703,7 @@ static struct async_scan_data *scsi_prep_async_scan(struct Scsi_Host *shost) return NULL; if (shost->async_scan) { - printk("%s called twice for host %d", __FUNCTION__, + printk("%s called twice for host %d", __func__, shost->host_no); dump_stack(); return NULL; @@ -1757,7 +1757,7 @@ static void scsi_finish_async_scan(struct async_scan_data *data) mutex_lock(&shost->scan_mutex); if (!shost->async_scan) { - printk("%s called twice for host %d", __FUNCTION__, + printk("%s called twice for host %d", __func__, shost->host_no); dump_stack(); mutex_unlock(&shost->scan_mutex); diff --git a/drivers/scsi/scsi_tgt_priv.h b/drivers/scsi/scsi_tgt_priv.h index cb92888948f9..fe4c62177f78 100644 --- a/drivers/scsi/scsi_tgt_priv.h +++ b/drivers/scsi/scsi_tgt_priv.h @@ -6,7 +6,7 @@ struct task_struct; /* tmp - will replace with SCSI logging stuff */ #define eprintk(fmt, args...) \ do { \ - printk("%s(%d) " fmt, __FUNCTION__, __LINE__, ##args); \ + printk("%s(%d) " fmt, __func__, __LINE__, ##args); \ } while (0) #define dprintk(fmt, args...) diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index a272b9a2c869..56823fd1fb84 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -571,7 +571,7 @@ send_fail: name = get_fc_host_event_code_name(event_code); printk(KERN_WARNING "%s: Dropped Event : host %d %s data 0x%08x - err %d\n", - __FUNCTION__, shost->host_no, + __func__, shost->host_no, (name) ? name : "", event_data, err); return; } @@ -644,7 +644,7 @@ send_vendor_fail_skb: send_vendor_fail: printk(KERN_WARNING "%s: Dropped Event : host %d vendor_unique - err %d\n", - __FUNCTION__, shost->host_no, err); + __func__, shost->host_no, err); return; } EXPORT_SYMBOL(fc_host_post_vendor_event); @@ -2464,7 +2464,7 @@ fc_rport_create(struct Scsi_Host *shost, int channel, size = (sizeof(struct fc_rport) + fci->f->dd_fcrport_size); rport = kzalloc(size, GFP_KERNEL); if (unlikely(!rport)) { - printk(KERN_ERR "%s: allocation failure\n", __FUNCTION__); + printk(KERN_ERR "%s: allocation failure\n", __func__); return NULL; } @@ -3137,7 +3137,7 @@ fc_vport_create(struct Scsi_Host *shost, int channel, struct device *pdev, size = (sizeof(struct fc_vport) + fci->f->dd_fcvport_size); vport = kzalloc(size, GFP_KERNEL); if (unlikely(!vport)) { - printk(KERN_ERR "%s: allocation failure\n", __FUNCTION__); + printk(KERN_ERR "%s: allocation failure\n", __func__); return -ENOMEM; } @@ -3201,7 +3201,7 @@ fc_vport_create(struct Scsi_Host *shost, int channel, struct device *pdev, printk(KERN_ERR "%s: Cannot create vport symlinks for " "%s, err=%d\n", - __FUNCTION__, dev->bus_id, error); + __func__, dev->bus_id, error); } spin_lock_irqsave(shost->host_lock, flags); vport->flags &= ~FC_VPORT_CREATING; @@ -3314,7 +3314,7 @@ fc_vport_sched_delete(struct work_struct *work) if (stat) dev_printk(KERN_ERR, vport->dev.parent, "%s: %s could not be deleted created via " - "shost%d channel %d - error %d\n", __FUNCTION__, + "shost%d channel %d - error %d\n", __func__, vport->dev.bus_id, vport->shost->host_no, vport->channel, stat); } diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c index f4461d35ffb9..366609386be1 100644 --- a/drivers/scsi/scsi_transport_sas.c +++ b/drivers/scsi/scsi_transport_sas.c @@ -779,7 +779,7 @@ static void sas_port_create_link(struct sas_port *port, return; err: printk(KERN_ERR "%s: Cannot create port links, err=%d\n", - __FUNCTION__, res); + __func__, res); } static void sas_port_delete_link(struct sas_port *port, @@ -1029,7 +1029,7 @@ void sas_port_mark_backlink(struct sas_port *port) return; err: printk(KERN_ERR "%s: Cannot create port backlink, err=%d\n", - __FUNCTION__, res); + __func__, res); } EXPORT_SYMBOL(sas_port_mark_backlink); diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c index 5b04ddfed26c..1723d71cbf3f 100644 --- a/drivers/scsi/tmscsim.c +++ b/drivers/scsi/tmscsim.c @@ -452,7 +452,7 @@ static int dc390_pci_map (struct dc390_srb* pSRB) /* TODO: error handling */ if (pSRB->SGcount != 1) error = 1; - DEBUG1(printk("%s(): Mapped sense buffer %p at %x\n", __FUNCTION__, pcmd->sense_buffer, cmdp->saved_dma_handle)); + DEBUG1(printk("%s(): Mapped sense buffer %p at %x\n", __func__, pcmd->sense_buffer, cmdp->saved_dma_handle)); /* Map SG list */ } else if (scsi_sg_count(pcmd)) { int nseg; @@ -466,7 +466,7 @@ static int dc390_pci_map (struct dc390_srb* pSRB) if (nseg < 0) error = 1; DEBUG1(printk("%s(): Mapped SG %p with %d (%d) elements\n",\ - __FUNCTION__, scsi_sglist(pcmd), nseg, scsi_sg_count(pcmd))); + __func__, scsi_sglist(pcmd), nseg, scsi_sg_count(pcmd))); /* Map single segment */ } else pSRB->SGcount = 0; @@ -483,11 +483,11 @@ static void dc390_pci_unmap (struct dc390_srb* pSRB) if (pSRB->SRBFlag) { pci_unmap_sg(pdev, &pSRB->Segmentx, 1, DMA_FROM_DEVICE); - DEBUG1(printk("%s(): Unmapped sense buffer at %x\n", __FUNCTION__, cmdp->saved_dma_handle)); + DEBUG1(printk("%s(): Unmapped sense buffer at %x\n", __func__, cmdp->saved_dma_handle)); } else { scsi_dma_unmap(pcmd); DEBUG1(printk("%s(): Unmapped SG at %p with %d elements\n", - __FUNCTION__, scsi_sglist(pcmd), scsi_sg_count(pcmd))); + __func__, scsi_sglist(pcmd), scsi_sg_count(pcmd))); } } diff --git a/drivers/scsi/wd7000.c b/drivers/scsi/wd7000.c index c975c01b3a02..d4c13561f4a6 100644 --- a/drivers/scsi/wd7000.c +++ b/drivers/scsi/wd7000.c @@ -148,7 +148,7 @@ * * 2002/10/04 - Alan Cox * - * Use dev_id for interrupts, kill __FUNCTION__ pasting + * Use dev_id for interrupts, kill __func__ pasting * Add a lock for the scb pool, clean up all other cli/sti usage stuff * Use the adapter lock for the other places we had the cli's * @@ -640,12 +640,12 @@ static int __init wd7000_setup(char *str) (void) get_options(str, ARRAY_SIZE(ints), ints); if (wd7000_card_num >= NUM_CONFIGS) { - printk(KERN_ERR "%s: Too many \"wd7000=\" configurations in " "command line!\n", __FUNCTION__); + printk(KERN_ERR "%s: Too many \"wd7000=\" configurations in " "command line!\n", __func__); return 0; } if ((ints[0] < 3) || (ints[0] > 5)) { - printk(KERN_ERR "%s: Error in command line! " "Usage: wd7000=,,IO>[," "[,]]\n", __FUNCTION__); + printk(KERN_ERR "%s: Error in command line! " "Usage: wd7000=,,IO>[," "[,]]\n", __func__); } else { for (i = 0; i < NUM_IRQS; i++) if (ints[1] == wd7000_irq[i]) @@ -1642,7 +1642,7 @@ static int wd7000_biosparam(struct scsi_device *sdev, ip[2] = info[2]; if (info[0] == 255) - printk(KERN_INFO "%s: current partition table is " "using extended translation.\n", __FUNCTION__); + printk(KERN_INFO "%s: current partition table is " "using extended translation.\n", __func__); } } diff --git a/drivers/scsi/zalon.c b/drivers/scsi/zalon.c index 4b5f908d35c3..3c4a300494a4 100644 --- a/drivers/scsi/zalon.c +++ b/drivers/scsi/zalon.c @@ -68,11 +68,11 @@ lasi_scsi_clock(void * hpa, int defaultclock) if (status == PDC_RET_OK) { clock = (int) pdc_result[16]; } else { - printk(KERN_WARNING "%s: pdc_iodc_read returned %d\n", __FUNCTION__, status); + printk(KERN_WARNING "%s: pdc_iodc_read returned %d\n", __func__, status); clock = defaultclock; } - printk(KERN_DEBUG "%s: SCSI clock %d\n", __FUNCTION__, clock); + printk(KERN_DEBUG "%s: SCSI clock %d\n", __func__, clock); return clock; } #endif @@ -108,13 +108,13 @@ zalon_probe(struct parisc_device *dev) */ dev->irq = gsc_alloc_irq(&gsc_irq); - printk(KERN_INFO "%s: Zalon version %d, IRQ %d\n", __FUNCTION__, + printk(KERN_INFO "%s: Zalon version %d, IRQ %d\n", __func__, zalon_vers, dev->irq); __raw_writel(gsc_irq.txn_addr | gsc_irq.txn_data, zalon + IO_MODULE_EIM); if (zalon_vers == 0) - printk(KERN_WARNING "%s: Zalon 1.1 or earlier\n", __FUNCTION__); + printk(KERN_WARNING "%s: Zalon 1.1 or earlier\n", __func__); memset(&device, 0, sizeof(struct ncr_device)); -- cgit v1.2.1 From c5b61d59a685b1227b8a994b52a9b0bd68dc8da8 Mon Sep 17 00:00:00 2001 From: Karsten Keil Date: Sun, 27 Jul 2008 18:32:50 +0200 Subject: Fix namespace issue with Hisax you can pull this git://git./linux/kernel/git/kkeil/ISDN-2.6 master rename release_tei() to TEIrelease() because release_tei() was already exported bei the old HiSax driver. Signed-off-by: Karsten Keil --- drivers/isdn/mISDN/layer2.c | 2 +- drivers/isdn/mISDN/layer2.h | 2 +- drivers/isdn/mISDN/tei.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/isdn/mISDN/layer2.c b/drivers/isdn/mISDN/layer2.c index f5ad888ee71e..a7915a156c04 100644 --- a/drivers/isdn/mISDN/layer2.c +++ b/drivers/isdn/mISDN/layer2.c @@ -2030,7 +2030,7 @@ release_l2(struct layer2 *l2) skb_queue_purge(&l2->down_queue); ReleaseWin(l2); if (test_bit(FLG_LAPD, &l2->flag)) { - release_tei(l2); + TEIrelease(l2); if (l2->ch.st) l2->ch.st->dev->D.ctrl(&l2->ch.st->dev->D, CLOSE_CHANNEL, NULL); diff --git a/drivers/isdn/mISDN/layer2.h b/drivers/isdn/mISDN/layer2.h index de2dd02056a3..6293f80dc2d3 100644 --- a/drivers/isdn/mISDN/layer2.h +++ b/drivers/isdn/mISDN/layer2.h @@ -96,7 +96,7 @@ extern int tei_l2(struct layer2 *, u_int, u_long arg); /* from tei.c */ extern int l2_tei(struct layer2 *, u_int, u_long arg); -extern void release_tei(struct layer2 *); +extern void TEIrelease(struct layer2 *); extern int TEIInit(u_int *); extern void TEIFree(void); diff --git a/drivers/isdn/mISDN/tei.c b/drivers/isdn/mISDN/tei.c index 56a76a0ffddd..6fbae42127bf 100644 --- a/drivers/isdn/mISDN/tei.c +++ b/drivers/isdn/mISDN/tei.c @@ -945,7 +945,7 @@ l2_tei(struct layer2 *l2, u_int cmd, u_long arg) } void -release_tei(struct layer2 *l2) +TEIrelease(struct layer2 *l2) { struct teimgr *tm = l2->tm; u_long flags; -- cgit v1.2.1 From 13ffc32eaf0b75a19bd8c3a8702faedde28853fe Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Mon, 28 Jul 2008 02:37:32 +1000 Subject: isdn: mISDN HFC PCI support depends on virt_to_bus() On powerpc (allyesconfig build) we get this error: drivers/isdn/hardware/mISDN/hfcpci.c:1991: error: implicit declaration of function 'virt_to_bus' Signed-off-by: Stephen Rothwell Signed-off-by: Linus Torvalds --- drivers/isdn/hardware/mISDN/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/isdn/hardware/mISDN/Kconfig b/drivers/isdn/hardware/mISDN/Kconfig index 14793480c453..9cd5f5f62280 100644 --- a/drivers/isdn/hardware/mISDN/Kconfig +++ b/drivers/isdn/hardware/mISDN/Kconfig @@ -7,6 +7,7 @@ config MISDN_HFCPCI tristate "Support for HFC PCI cards" depends on MISDN depends on PCI + depends on VIRT_TO_BUS help Enable support for cards with Cologne Chip AG's HFC PCI chip. -- cgit v1.2.1