From 309ce156aa27f29338438011d292a8d6496623d3 Mon Sep 17 00:00:00 2001 From: Jayamohan Kallickal Date: Sat, 20 Feb 2010 08:02:10 +0530 Subject: [SCSI] libiscsi: Make iscsi_eh_target_reset start with session reset The iscsi_eh_target_reset has been modified to attempt target reset only. If it fails, then iscsi_eh_session_reset will be called. Signed-off-by: Mike Christie Signed-off-by: Jayamohan Kallickal Signed-off-by: James Bottomley --- drivers/scsi/be2iscsi/be_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/scsi/be2iscsi/be_main.c') diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c index 7c22616ab141..4d269b434a78 100644 --- a/drivers/scsi/be2iscsi/be_main.c +++ b/drivers/scsi/be2iscsi/be_main.c @@ -79,7 +79,7 @@ static struct scsi_host_template beiscsi_sht = { .slave_configure = beiscsi_slave_configure, .target_alloc = iscsi_target_alloc, .eh_device_reset_handler = iscsi_eh_device_reset, - .eh_target_reset_handler = iscsi_eh_target_reset, + .eh_target_reset_handler = iscsi_eh_session_reset, .sg_tablesize = BEISCSI_SGLIST_ELEMENTS, .can_queue = BE2_IO_DEPTH, .this_id = -1, -- cgit v1.2.1 From 4183122dbc7c489f11971c5afa8e42011bca7fa2 Mon Sep 17 00:00:00 2001 From: Jayamohan Kallickal Date: Sat, 20 Feb 2010 08:02:39 +0530 Subject: [SCSI] be2iscsi: Cleanup of resets for device and target This patch cleans up device and target reset handling for the driver Signed-off-by: Mike Christie Signed-off-by: Jayamohan Kallickal Signed-off-by: James Bottomley --- drivers/scsi/be2iscsi/be_main.c | 134 +++++++++++++++++++++++++++++++++++++--- 1 file changed, 127 insertions(+), 7 deletions(-) (limited to 'drivers/scsi/be2iscsi/be_main.c') diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c index 4d269b434a78..eab31a515de3 100644 --- a/drivers/scsi/be2iscsi/be_main.c +++ b/drivers/scsi/be2iscsi/be_main.c @@ -58,6 +58,123 @@ static int beiscsi_slave_configure(struct scsi_device *sdev) return 0; } +static int beiscsi_eh_abort(struct scsi_cmnd *sc) +{ + struct iscsi_cls_session *cls_session; + struct iscsi_task *aborted_task = (struct iscsi_task *)sc->SCp.ptr; + struct beiscsi_io_task *aborted_io_task; + struct iscsi_conn *conn; + struct beiscsi_conn *beiscsi_conn; + struct beiscsi_hba *phba; + struct iscsi_session *session; + struct invalidate_command_table *inv_tbl; + unsigned int cid, tag, num_invalidate; + + cls_session = starget_to_session(scsi_target(sc->device)); + session = cls_session->dd_data; + + spin_lock_bh(&session->lock); + if (!aborted_task || !aborted_task->sc) { + /* we raced */ + spin_unlock_bh(&session->lock); + return SUCCESS; + } + + aborted_io_task = aborted_task->dd_data; + if (!aborted_io_task->scsi_cmnd) { + /* raced or invalid command */ + spin_unlock_bh(&session->lock); + return SUCCESS; + } + spin_unlock_bh(&session->lock); + conn = aborted_task->conn; + beiscsi_conn = conn->dd_data; + phba = beiscsi_conn->phba; + + /* invalidate iocb */ + cid = beiscsi_conn->beiscsi_conn_cid; + inv_tbl = phba->inv_tbl; + memset(inv_tbl, 0x0, sizeof(*inv_tbl)); + inv_tbl->cid = cid; + inv_tbl->icd = aborted_io_task->psgl_handle->sgl_index; + num_invalidate = 1; + tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate, cid); + if (!tag) { + shost_printk(KERN_WARNING, phba->shost, + "mgmt_invalidate_icds could not be" + " submitted\n"); + return FAILED; + } else { + wait_event_interruptible(phba->ctrl.mcc_wait[tag], + phba->ctrl.mcc_numtag[tag]); + free_mcc_tag(&phba->ctrl, tag); + } + + return iscsi_eh_abort(sc); +} + +static int beiscsi_eh_device_reset(struct scsi_cmnd *sc) +{ + struct iscsi_task *abrt_task; + struct beiscsi_io_task *abrt_io_task; + struct iscsi_conn *conn; + struct beiscsi_conn *beiscsi_conn; + struct beiscsi_hba *phba; + struct iscsi_session *session; + struct iscsi_cls_session *cls_session; + struct invalidate_command_table *inv_tbl; + unsigned int cid, tag, i, num_invalidate; + int rc = FAILED; + + /* invalidate iocbs */ + cls_session = starget_to_session(scsi_target(sc->device)); + session = cls_session->dd_data; + spin_lock_bh(&session->lock); + if (!session->leadconn || session->state != ISCSI_STATE_LOGGED_IN) + goto unlock; + + conn = session->leadconn; + beiscsi_conn = conn->dd_data; + phba = beiscsi_conn->phba; + cid = beiscsi_conn->beiscsi_conn_cid; + inv_tbl = phba->inv_tbl; + memset(inv_tbl, 0x0, sizeof(*inv_tbl) * BE2_CMDS_PER_CXN); + num_invalidate = 0; + for (i = 0; i < conn->session->cmds_max; i++) { + abrt_task = conn->session->cmds[i]; + abrt_io_task = abrt_task->dd_data; + if (!abrt_task->sc || abrt_task->state == ISCSI_TASK_FREE) + continue; + + if (abrt_task->sc->device->lun != abrt_task->sc->device->lun) + continue; + + inv_tbl->cid = cid; + inv_tbl->icd = abrt_io_task->psgl_handle->sgl_index; + num_invalidate++; + inv_tbl++; + } + spin_unlock_bh(&session->lock); + inv_tbl = phba->inv_tbl; + + tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate, cid); + if (!tag) { + shost_printk(KERN_WARNING, phba->shost, + "mgmt_invalidate_icds could not be" + " submitted\n"); + return FAILED; + } else { + wait_event_interruptible(phba->ctrl.mcc_wait[tag], + phba->ctrl.mcc_numtag[tag]); + free_mcc_tag(&phba->ctrl, tag); + } + + return iscsi_eh_device_reset(sc); +unlock: + spin_unlock_bh(&session->lock); + return rc; +} + /*------------------- PCI Driver operations and data ----------------- */ static DEFINE_PCI_DEVICE_TABLE(beiscsi_pci_id_table) = { { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) }, @@ -74,11 +191,11 @@ static struct scsi_host_template beiscsi_sht = { .name = "ServerEngines 10Gbe open-iscsi Initiator Driver", .proc_name = DRV_NAME, .queuecommand = iscsi_queuecommand, - .eh_abort_handler = iscsi_eh_abort, .change_queue_depth = iscsi_change_queue_depth, .slave_configure = beiscsi_slave_configure, .target_alloc = iscsi_target_alloc, - .eh_device_reset_handler = iscsi_eh_device_reset, + .eh_abort_handler = beiscsi_eh_abort, + .eh_device_reset_handler = beiscsi_eh_device_reset, .eh_target_reset_handler = iscsi_eh_session_reset, .sg_tablesize = BEISCSI_SGLIST_ELEMENTS, .can_queue = BE2_IO_DEPTH, @@ -3486,9 +3603,9 @@ static int beiscsi_mtask(struct iscsi_task *task) struct hwi_wrb_context *pwrb_context; struct wrb_handle *pwrb_handle; unsigned int doorbell = 0; - unsigned int i, cid; + struct invalidate_command_table *inv_tbl; struct iscsi_task *aborted_task; - unsigned int tag; + unsigned int i, cid, tag, num_invalidate; cid = beiscsi_conn->beiscsi_conn_cid; pwrb = io_task->pwrb_handle->pwrb; @@ -3538,9 +3655,12 @@ static int beiscsi_mtask(struct iscsi_task *task) if (!aborted_io_task->scsi_cmnd) return 0; - tag = mgmt_invalidate_icds(phba, - aborted_io_task->psgl_handle->sgl_index, - cid); + inv_tbl = phba->inv_tbl; + memset(inv_tbl, 0x0, sizeof(*inv_tbl)); + inv_tbl->cid = cid; + inv_tbl->icd = aborted_io_task->psgl_handle->sgl_index; + num_invalidate = 1; + tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate, cid); if (!tag) { shost_printk(KERN_WARNING, phba->shost, "mgmt_invalidate_icds could not be" -- cgit v1.2.1 From dafab8e079f432268cca5cf378b92d6acfacc393 Mon Sep 17 00:00:00 2001 From: Jayamohan Kallickal Date: Sat, 20 Feb 2010 08:03:56 +0530 Subject: [SCSI] be2iscsi: cleans up abort handling This patch cleans up abort handling when TMF is sent Signed-off-by: Jayamohan Kallickal Signed-off-by: James Bottomley --- drivers/scsi/be2iscsi/be_main.c | 62 ++++++++--------------------------------- 1 file changed, 11 insertions(+), 51 deletions(-) (limited to 'drivers/scsi/be2iscsi/be_main.c') diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c index eab31a515de3..aee3734d8617 100644 --- a/drivers/scsi/be2iscsi/be_main.c +++ b/drivers/scsi/be2iscsi/be_main.c @@ -1063,14 +1063,18 @@ static void hwi_complete_cmd(struct beiscsi_conn *beiscsi_conn, case HWH_TYPE_IO: case HWH_TYPE_IO_RD: if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == - ISCSI_OP_NOOP_OUT) { + ISCSI_OP_NOOP_OUT) be_complete_nopin_resp(beiscsi_conn, task, psol); - } else + else be_complete_io(beiscsi_conn, task, psol); break; case HWH_TYPE_LOGOUT: - be_complete_logout(beiscsi_conn, task, psol); + if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGOUT) + be_complete_logout(beiscsi_conn, task, psol); + else + be_complete_tmf(beiscsi_conn, task, psol); + break; case HWH_TYPE_LOGIN: @@ -1079,10 +1083,6 @@ static void hwi_complete_cmd(struct beiscsi_conn *beiscsi_conn, "- Solicited path \n"); break; - case HWH_TYPE_TMF: - be_complete_tmf(beiscsi_conn, task, psol); - break; - case HWH_TYPE_NOP: be_complete_nopin_resp(beiscsi_conn, task, psol); break; @@ -3593,19 +3593,13 @@ static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg, static int beiscsi_mtask(struct iscsi_task *task) { - struct beiscsi_io_task *aborted_io_task, *io_task = task->dd_data; + struct beiscsi_io_task *io_task = task->dd_data; struct iscsi_conn *conn = task->conn; struct beiscsi_conn *beiscsi_conn = conn->dd_data; struct beiscsi_hba *phba = beiscsi_conn->phba; - struct iscsi_session *session; struct iscsi_wrb *pwrb = NULL; - struct hwi_controller *phwi_ctrlr; - struct hwi_wrb_context *pwrb_context; - struct wrb_handle *pwrb_handle; unsigned int doorbell = 0; - struct invalidate_command_table *inv_tbl; - struct iscsi_task *aborted_task; - unsigned int i, cid, tag, num_invalidate; + unsigned int cid; cid = beiscsi_conn->beiscsi_conn_cid; pwrb = io_task->pwrb_handle->pwrb; @@ -3616,6 +3610,7 @@ static int beiscsi_mtask(struct iscsi_task *task) io_task->pwrb_handle->wrb_index); AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb, io_task->psgl_handle->sgl_index); + switch (task->hdr->opcode & ISCSI_OPCODE_MASK) { case ISCSI_OP_LOGIN: AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, @@ -3640,36 +3635,6 @@ static int beiscsi_mtask(struct iscsi_task *task) hwi_write_buffer(pwrb, task); break; case ISCSI_OP_SCSI_TMFUNC: - session = conn->session; - i = ((struct iscsi_tm *)task->hdr)->rtt; - phwi_ctrlr = phba->phwi_ctrlr; - pwrb_context = &phwi_ctrlr->wrb_context[cid - - phba->fw_config.iscsi_cid_start]; - pwrb_handle = pwrb_context->pwrb_handle_basestd[be32_to_cpu(i) - >> 16]; - aborted_task = pwrb_handle->pio_handle; - if (!aborted_task) - return 0; - - aborted_io_task = aborted_task->dd_data; - if (!aborted_io_task->scsi_cmnd) - return 0; - - inv_tbl = phba->inv_tbl; - memset(inv_tbl, 0x0, sizeof(*inv_tbl)); - inv_tbl->cid = cid; - inv_tbl->icd = aborted_io_task->psgl_handle->sgl_index; - num_invalidate = 1; - tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate, cid); - if (!tag) { - shost_printk(KERN_WARNING, phba->shost, - "mgmt_invalidate_icds could not be" - " submitted\n"); - } else { - wait_event_interruptible(phba->ctrl.mcc_wait[tag], - phba->ctrl.mcc_numtag[tag]); - free_mcc_tag(&phba->ctrl, tag); - } AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_TMF_CMD); AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); @@ -3678,7 +3643,7 @@ static int beiscsi_mtask(struct iscsi_task *task) case ISCSI_OP_LOGOUT: AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0); AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, - HWH_TYPE_LOGOUT); + HWH_TYPE_LOGOUT); hwi_write_buffer(pwrb, task); break; @@ -3704,17 +3669,12 @@ static int beiscsi_mtask(struct iscsi_task *task) static int beiscsi_task_xmit(struct iscsi_task *task) { - struct iscsi_conn *conn = task->conn; struct beiscsi_io_task *io_task = task->dd_data; struct scsi_cmnd *sc = task->sc; - struct beiscsi_conn *beiscsi_conn = conn->dd_data; struct scatterlist *sg; int num_sg; unsigned int writedir = 0, xferlen = 0; - SE_DEBUG(DBG_LVL_4, "\n cid=%d In beiscsi_task_xmit task=%p conn=%p \t" - "beiscsi_conn=%p \n", beiscsi_conn->beiscsi_conn_cid, - task, conn, beiscsi_conn); if (!sc) return beiscsi_mtask(task); -- cgit v1.2.1 From 90a289e87648f80b63178c463aa7daaf5205805c Mon Sep 17 00:00:00 2001 From: Jayamohan Kallickal Date: Sat, 20 Feb 2010 08:04:28 +0530 Subject: [SCSI] be2iscsi: Remove debug code This patch removes some debug lines which are unnecessary and also aligns some lines in code Signed-off-by: Jayamohan Kallickal Signed-off-by: James Bottomley --- drivers/scsi/be2iscsi/be_main.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/scsi/be2iscsi/be_main.c') diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c index aee3734d8617..b5dca45bae96 100644 --- a/drivers/scsi/be2iscsi/be_main.c +++ b/drivers/scsi/be2iscsi/be_main.c @@ -3779,7 +3779,6 @@ static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev, " Failed in beiscsi_hba_alloc \n"); goto disable_pci; } - SE_DEBUG(DBG_LVL_8, " phba = %p \n", phba); switch (pcidev->device) { case BE_DEVICE_ID1: -- cgit v1.2.1 From ed58ea2ab58c7d80a07a829a1cc2c4161c300494 Mon Sep 17 00:00:00 2001 From: Jayamohan Kallickal Date: Sat, 20 Feb 2010 08:05:07 +0530 Subject: [SCSI] be2iscsi: Fixing memory allocation for connection This patch fixes some situations where enough resources were not avaialable when targets exceeded a certain limit Signed-off-by: Jayamohan Kallickal Signed-off-by: James Bottomley --- drivers/scsi/be2iscsi/be_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/scsi/be2iscsi/be_main.c') diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c index b5dca45bae96..5887d7a0e3ff 100644 --- a/drivers/scsi/be2iscsi/be_main.c +++ b/drivers/scsi/be2iscsi/be_main.c @@ -359,7 +359,7 @@ static void beiscsi_get_params(struct beiscsi_hba *phba) + BE2_TMFS + BE2_NOPOUT_REQ)); phba->params.cxns_per_ctrl = phba->fw_config.iscsi_cid_count; - phba->params.asyncpdus_per_ctrl = phba->fw_config.iscsi_cid_count;; + phba->params.asyncpdus_per_ctrl = phba->fw_config.iscsi_cid_count * 2; phba->params.icds_per_ctrl = phba->fw_config.iscsi_icd_count;; phba->params.num_sge_per_io = BE2_SGE; phba->params.defpdu_hdr_sz = BE2_DEFPDU_HDR_SZ; @@ -2169,7 +2169,7 @@ static void beiscsi_init_wrb_handle(struct beiscsi_hba *phba) num_cxn_wrb = (mem_descr_wrb->mem_array[idx].size) / ((sizeof(struct iscsi_wrb) * phba->params.wrbs_per_cxn)); - for (index = 0; index < phba->params.cxns_per_ctrl; index += 2) { + for (index = 0; index < phba->params.cxns_per_ctrl * 2; index += 2) { pwrb_context = &phwi_ctrlr->wrb_context[index]; if (num_cxn_wrb) { for (j = 0; j < phba->params.wrbs_per_cxn; j++) { -- cgit v1.2.1 From c03af1ae1cce97a5530b907ea03625ce6e00214e Mon Sep 17 00:00:00 2001 From: Jayamohan Kallickal Date: Sat, 20 Feb 2010 08:05:43 +0530 Subject: [SCSI] be2iscsi: Alloc only one EQ if intr mode This patch ensures that we alloc only one EQ if we are if we are not in msix mode Signed-off-by: Jayamohan Kallickal Signed-off-by: James Bottomley --- drivers/scsi/be2iscsi/be_main.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) (limited to 'drivers/scsi/be2iscsi/be_main.c') diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c index 5887d7a0e3ff..fcfb29e02d8a 100644 --- a/drivers/scsi/be2iscsi/be_main.c +++ b/drivers/scsi/be2iscsi/be_main.c @@ -3190,14 +3190,18 @@ static unsigned char hwi_enable_intr(struct beiscsi_hba *phba) reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; SE_DEBUG(DBG_LVL_8, "reg =x%08x addr=%p \n", reg, addr); iowrite32(reg, addr); - for (i = 0; i <= phba->num_cpus; i++) { - eq = &phwi_context->be_eq[i].q; + if (!phba->msix_enabled) { + eq = &phwi_context->be_eq[0].q; SE_DEBUG(DBG_LVL_8, "eq->id=%d \n", eq->id); hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1); + } else { + for (i = 0; i <= phba->num_cpus; i++) { + eq = &phwi_context->be_eq[i].q; + SE_DEBUG(DBG_LVL_8, "eq->id=%d \n", eq->id); + hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1); + } } - } else - shost_printk(KERN_WARNING, phba->shost, - "In hwi_enable_intr, Not Enabled \n"); + } return true; } -- cgit v1.2.1