diff options
Diffstat (limited to 'drivers/scsi/pmcraid.c')
| -rw-r--r-- | drivers/scsi/pmcraid.c | 886 |
1 files changed, 664 insertions, 222 deletions
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index c44e4ab4e938..9ebcea3643b2 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -113,6 +113,7 @@ static struct pmcraid_chip_details pmcraid_chip_cfg[] = { .global_intr_mask = 0x00034, .ioa_host_intr = 0x0009C, .ioa_host_intr_clr = 0x000A0, + .ioa_host_msix_intr = 0x7FC40, .ioa_host_mask = 0x7FC28, .ioa_host_mask_clr = 0x7FC28, .host_ioa_intr = 0x00020, @@ -154,8 +155,12 @@ static int pmcraid_slave_alloc(struct scsi_device *scsi_dev) u8 target, bus, lun; unsigned long lock_flags; int rc = -ENXIO; + u16 fw_version; + pinstance = shost_priv(scsi_dev->host); + fw_version = be16_to_cpu(pinstance->inq_data->fw_version); + /* Driver exposes VSET and GSCSI resources only; all other device types * are not exposed. Resource list is synchronized using resource lock * so any traversal or modifications to the list should be done inside @@ -166,7 +171,11 @@ static int pmcraid_slave_alloc(struct scsi_device *scsi_dev) /* do not expose VSETs with order-ids > MAX_VSET_TARGETS */ if (RES_IS_VSET(temp->cfg_entry)) { - target = temp->cfg_entry.unique_flags1; + if (fw_version <= PMCRAID_FW_VERSION_1) + target = temp->cfg_entry.unique_flags1; + else + target = temp->cfg_entry.array_id & 0xFF; + if (target > PMCRAID_MAX_VSET_TARGETS) continue; bus = PMCRAID_VSET_BUS_ID; @@ -283,7 +292,7 @@ static void pmcraid_slave_destroy(struct scsi_device *scsi_dev) * @reason: calling context * * Return value - * actual depth set + * actual depth set */ static int pmcraid_change_queue_depth(struct scsi_device *scsi_dev, int depth, int reason) @@ -305,7 +314,7 @@ static int pmcraid_change_queue_depth(struct scsi_device *scsi_dev, int depth, * @tag: type of tags to use * * Return value: - * actual queue type set + * actual queue type set */ static int pmcraid_change_queue_type(struct scsi_device *scsi_dev, int tag) { @@ -357,6 +366,7 @@ void pmcraid_init_cmdblk(struct pmcraid_cmd *cmd, int index) * processed by IOA */ memset(&cmd->ioa_cb->ioarcb.cdb, 0, PMCRAID_MAX_CDB_LEN); + ioarcb->hrrq_id = 0; ioarcb->request_flags0 = 0; ioarcb->request_flags1 = 0; ioarcb->cmd_timeout = 0; @@ -368,13 +378,15 @@ void pmcraid_init_cmdblk(struct pmcraid_cmd *cmd, int index) ioarcb->add_cmd_param_offset = 0; cmd->ioa_cb->ioasa.ioasc = 0; cmd->ioa_cb->ioasa.residual_data_length = 0; - cmd->u.time_left = 0; + cmd->time_left = 0; } cmd->cmd_done = NULL; cmd->scsi_cmd = NULL; cmd->release = 0; cmd->completion_req = 0; + cmd->sense_buffer = 0; + cmd->sense_buffer_dma = 0; cmd->dma_handle = 0; init_timer(&cmd->timer); } @@ -449,7 +461,9 @@ void pmcraid_return_cmd(struct pmcraid_cmd *cmd) */ static u32 pmcraid_read_interrupts(struct pmcraid_instance *pinstance) { - return ioread32(pinstance->int_regs.ioa_host_interrupt_reg); + return (pinstance->interrupt_mode) ? + ioread32(pinstance->int_regs.ioa_host_msix_interrupt_reg) : + ioread32(pinstance->int_regs.ioa_host_interrupt_reg); } /** @@ -469,10 +483,15 @@ static void pmcraid_disable_interrupts( u32 gmask = ioread32(pinstance->int_regs.global_interrupt_mask_reg); u32 nmask = gmask | GLOBAL_INTERRUPT_MASK; - iowrite32(nmask, pinstance->int_regs.global_interrupt_mask_reg); iowrite32(intrs, pinstance->int_regs.ioa_host_interrupt_clr_reg); - iowrite32(intrs, pinstance->int_regs.ioa_host_interrupt_mask_reg); - ioread32(pinstance->int_regs.ioa_host_interrupt_mask_reg); + iowrite32(nmask, pinstance->int_regs.global_interrupt_mask_reg); + ioread32(pinstance->int_regs.global_interrupt_mask_reg); + + if (!pinstance->interrupt_mode) { + iowrite32(intrs, + pinstance->int_regs.ioa_host_interrupt_mask_reg); + ioread32(pinstance->int_regs.ioa_host_interrupt_mask_reg); + } } /** @@ -493,8 +512,12 @@ static void pmcraid_enable_interrupts( u32 nmask = gmask & (~GLOBAL_INTERRUPT_MASK); iowrite32(nmask, pinstance->int_regs.global_interrupt_mask_reg); - iowrite32(~intrs, pinstance->int_regs.ioa_host_interrupt_mask_reg); - ioread32(pinstance->int_regs.ioa_host_interrupt_mask_reg); + + if (!pinstance->interrupt_mode) { + iowrite32(~intrs, + pinstance->int_regs.ioa_host_interrupt_mask_reg); + ioread32(pinstance->int_regs.ioa_host_interrupt_mask_reg); + } pmcraid_info("enabled interrupts global mask = %x intr_mask = %x\n", ioread32(pinstance->int_regs.global_interrupt_mask_reg), @@ -502,6 +525,39 @@ static void pmcraid_enable_interrupts( } /** + * pmcraid_clr_trans_op - clear trans to op interrupt + * + * @pinstance: pointer to per adapter instance structure + * + * Return Value + * None + */ +static void pmcraid_clr_trans_op( + struct pmcraid_instance *pinstance +) +{ + unsigned long lock_flags; + + if (!pinstance->interrupt_mode) { + iowrite32(INTRS_TRANSITION_TO_OPERATIONAL, + pinstance->int_regs.ioa_host_interrupt_mask_reg); + ioread32(pinstance->int_regs.ioa_host_interrupt_mask_reg); + iowrite32(INTRS_TRANSITION_TO_OPERATIONAL, + pinstance->int_regs.ioa_host_interrupt_clr_reg); + ioread32(pinstance->int_regs.ioa_host_interrupt_clr_reg); + } + + if (pinstance->reset_cmd != NULL) { + del_timer(&pinstance->reset_cmd->timer); + spin_lock_irqsave( + pinstance->host->host_lock, lock_flags); + pinstance->reset_cmd->cmd_done(pinstance->reset_cmd); + spin_unlock_irqrestore( + pinstance->host->host_lock, lock_flags); + } +} + +/** * pmcraid_reset_type - Determine the required reset type * @pinstance: pointer to adapter instance structure * @@ -536,7 +592,7 @@ static void pmcraid_reset_type(struct pmcraid_instance *pinstance) * pmcraid_bist_done - completion function for PCI BIST * @cmd: pointer to reset command * Return Value - * none + * none */ static void pmcraid_ioa_reset(struct pmcraid_cmd *); @@ -552,16 +608,16 @@ static void pmcraid_bist_done(struct pmcraid_cmd *cmd) /* If PCI config space can't be accessed wait for another two secs */ if ((rc != PCIBIOS_SUCCESSFUL || (!(pci_reg & PCI_COMMAND_MEMORY))) && - cmd->u.time_left > 0) { + cmd->time_left > 0) { pmcraid_info("BIST not complete, waiting another 2 secs\n"); - cmd->timer.expires = jiffies + cmd->u.time_left; - cmd->u.time_left = 0; + cmd->timer.expires = jiffies + cmd->time_left; + cmd->time_left = 0; cmd->timer.data = (unsigned long)cmd; cmd->timer.function = (void (*)(unsigned long))pmcraid_bist_done; add_timer(&cmd->timer); } else { - cmd->u.time_left = 0; + cmd->time_left = 0; pmcraid_info("BIST is complete, proceeding with reset\n"); spin_lock_irqsave(pinstance->host->host_lock, lock_flags); pmcraid_ioa_reset(cmd); @@ -585,10 +641,10 @@ static void pmcraid_start_bist(struct pmcraid_cmd *cmd) pinstance->int_regs.host_ioa_interrupt_reg); doorbells = ioread32(pinstance->int_regs.host_ioa_interrupt_reg); intrs = ioread32(pinstance->int_regs.ioa_host_interrupt_reg); - pmcraid_info("doorbells after start bist: %x intrs: %x \n", + pmcraid_info("doorbells after start bist: %x intrs: %x\n", doorbells, intrs); - cmd->u.time_left = msecs_to_jiffies(PMCRAID_BIST_TIMEOUT); + cmd->time_left = msecs_to_jiffies(PMCRAID_BIST_TIMEOUT); cmd->timer.data = (unsigned long)cmd; cmd->timer.expires = jiffies + msecs_to_jiffies(PMCRAID_BIST_TIMEOUT); cmd->timer.function = (void (*)(unsigned long))pmcraid_bist_done; @@ -612,7 +668,7 @@ static void pmcraid_reset_alert_done(struct pmcraid_cmd *cmd) * some more time to wait, restart the timer */ if (((status & INTRS_CRITICAL_OP_IN_PROGRESS) == 0) || - cmd->u.time_left <= 0) { + cmd->time_left <= 0) { pmcraid_info("critical op is reset proceeding with reset\n"); spin_lock_irqsave(pinstance->host->host_lock, lock_flags); pmcraid_ioa_reset(cmd); @@ -620,7 +676,7 @@ static void pmcraid_reset_alert_done(struct pmcraid_cmd *cmd) } else { pmcraid_info("critical op is not yet reset waiting again\n"); /* restart timer if some more time is available to wait */ - cmd->u.time_left -= PMCRAID_CHECK_FOR_RESET_TIMEOUT; + cmd->time_left -= PMCRAID_CHECK_FOR_RESET_TIMEOUT; cmd->timer.data = (unsigned long)cmd; cmd->timer.expires = jiffies + PMCRAID_CHECK_FOR_RESET_TIMEOUT; cmd->timer.function = @@ -638,6 +694,7 @@ static void pmcraid_reset_alert_done(struct pmcraid_cmd *cmd) * successfully written to IOA. Returns non-zero in case pci_config_space * is not accessible */ +static void pmcraid_notify_ioastate(struct pmcraid_instance *, u32); static void pmcraid_reset_alert(struct pmcraid_cmd *cmd) { struct pmcraid_instance *pinstance = cmd->drv_inst; @@ -658,7 +715,7 @@ static void pmcraid_reset_alert(struct pmcraid_cmd *cmd) * OPERATION bit is reset. A timer is started to wait for this * bit to be reset. */ - cmd->u.time_left = PMCRAID_RESET_TIMEOUT; + cmd->time_left = PMCRAID_RESET_TIMEOUT; cmd->timer.data = (unsigned long)cmd; cmd->timer.expires = jiffies + PMCRAID_CHECK_FOR_RESET_TIMEOUT; cmd->timer.function = @@ -693,7 +750,8 @@ static void pmcraid_timeout_handler(struct pmcraid_cmd *cmd) unsigned long lock_flags; dev_info(&pinstance->pdev->dev, - "Adapter being reset due to command timeout.\n"); + "Adapter being reset due to cmd(CDB[0] = %x) timeout\n", + cmd->ioa_cb->ioarcb.cdb[0]); /* Command timeouts result in hard reset sequence. The command that got * timed out may be the one used as part of reset sequence. In this @@ -736,9 +794,14 @@ static void pmcraid_timeout_handler(struct pmcraid_cmd *cmd) */ if (cmd == pinstance->reset_cmd) cmd->cmd_done = pmcraid_ioa_reset; - } + /* Notify apps of important IOA bringup/bringdown sequences */ + if (pinstance->scn.ioa_state != PMC_DEVICE_EVENT_RESET_START && + pinstance->scn.ioa_state != PMC_DEVICE_EVENT_SHUTDOWN_START) + pmcraid_notify_ioastate(pinstance, + PMC_DEVICE_EVENT_RESET_START); + pinstance->ioa_state = IOA_STATE_IN_RESET_ALERT; scsi_block_requests(pinstance->host); pmcraid_reset_alert(cmd); @@ -866,7 +929,7 @@ static void _pmcraid_fire_command(struct pmcraid_cmd *cmd) /* Add this command block to pending cmd pool. We do this prior to * writting IOARCB to ioarrin because IOA might complete the command * by the time we are about to add it to the list. Response handler - * (isr/tasklet) looks for cmb block in the pending pending list. + * (isr/tasklet) looks for cmd block in the pending pending list. */ spin_lock_irqsave(&pinstance->pending_pool_lock, lock_flags); list_add_tail(&cmd->free_list, &pinstance->pending_cmd_pool); @@ -916,6 +979,23 @@ static void pmcraid_send_cmd( } /** + * pmcraid_ioa_shutdown_done - completion function for IOA shutdown command + * @cmd: pointer to the command block used for sending IOA shutdown command + * + * Return value + * None + */ +static void pmcraid_ioa_shutdown_done(struct pmcraid_cmd *cmd) +{ + struct pmcraid_instance *pinstance = cmd->drv_inst; + unsigned long lock_flags; + + spin_lock_irqsave(pinstance->host->host_lock, lock_flags); + pmcraid_ioa_reset(cmd); + spin_unlock_irqrestore(pinstance->host->host_lock, lock_flags); +} + +/** * pmcraid_ioa_shutdown - sends SHUTDOWN command to ioa * * @cmd: pointer to the command block used as part of reset sequence @@ -943,30 +1023,112 @@ static void pmcraid_ioa_shutdown(struct pmcraid_cmd *cmd) pmcraid_info("firing normal shutdown command (%d) to IOA\n", le32_to_cpu(cmd->ioa_cb->ioarcb.response_handle)); - pmcraid_send_cmd(cmd, pmcraid_ioa_reset, + pmcraid_notify_ioastate(cmd->drv_inst, PMC_DEVICE_EVENT_SHUTDOWN_START); + + pmcraid_send_cmd(cmd, pmcraid_ioa_shutdown_done, PMCRAID_SHUTDOWN_TIMEOUT, pmcraid_timeout_handler); } /** - * pmcraid_identify_hrrq - registers host rrq buffers with IOA - * @cmd: pointer to command block to be used for identify hrrq + * pmcraid_get_fwversion_done - completion function for get_fwversion + * + * @cmd: pointer to command block used to send INQUIRY command * * Return Value - * 0 in case of success, otherwise non-zero failure code + * none */ - static void pmcraid_querycfg(struct pmcraid_cmd *); +static void pmcraid_get_fwversion_done(struct pmcraid_cmd *cmd) +{ + struct pmcraid_instance *pinstance = cmd->drv_inst; + u32 ioasc = le32_to_cpu(cmd->ioa_cb->ioasa.ioasc); + unsigned long lock_flags; + + /* configuration table entry size depends on firmware version. If fw + * version is not known, it is not possible to interpret IOA config + * table + */ + if (ioasc) { + pmcraid_err("IOA Inquiry failed with %x\n", ioasc); + spin_lock_irqsave(pinstance->host->host_lock, lock_flags); + pinstance->ioa_state = IOA_STATE_IN_RESET_ALERT; + pmcraid_reset_alert(cmd); + spin_unlock_irqrestore(pinstance->host->host_lock, lock_flags); + } else { + pmcraid_querycfg(cmd); + } +} + +/** + * pmcraid_get_fwversion - reads firmware version information + * + * @cmd: pointer to command block used to send INQUIRY command + * + * Return Value + * none + */ +static void pmcraid_get_fwversion(struct pmcraid_cmd *cmd) +{ + struct pmcraid_ioarcb *ioarcb = &cmd->ioa_cb->ioarcb; + struct pmcraid_ioadl_desc *ioadl = ioarcb->add_data.u.ioadl; + struct pmcraid_instance *pinstance = cmd->drv_inst; + u16 data_size = sizeof(struct pmcraid_inquiry_data); + + pmcraid_reinit_cmdblk(cmd); + ioarcb->request_type = REQ_TYPE_SCSI; + ioarcb->resource_handle = cpu_to_le32(PMCRAID_IOA_RES_HANDLE); + ioarcb->cdb[0] = INQUIRY; + ioarcb->cdb[1] = 1; + ioarcb->cdb[2] = 0xD0; + ioarcb->cdb[3] = (data_size >> 8) & 0xFF; + ioarcb->cdb[4] = data_size & 0xFF; + + /* Since entire inquiry data it can be part of IOARCB itself + */ + ioarcb->ioadl_bus_addr = cpu_to_le64((cmd->ioa_cb_bus_addr) + + offsetof(struct pmcraid_ioarcb, + add_data.u.ioadl[0])); + ioarcb->ioadl_length = cpu_to_le32(sizeof(struct pmcraid_ioadl_desc)); + ioarcb->ioarcb_bus_addr &= ~(0x1FULL); + + ioarcb->request_flags0 |= NO_LINK_DESCS; + ioarcb->data_transfer_length = cpu_to_le32(data_size); + ioadl = &(ioarcb->add_data.u.ioadl[0]); + ioadl->flags = IOADL_FLAGS_LAST_DESC; + ioadl->address = cpu_to_le64(pinstance->inq_data_baddr); + ioadl->data_len = cpu_to_le32(data_size); + + pmcraid_send_cmd(cmd, pmcraid_get_fwversion_done, + PMCRAID_INTERNAL_TIMEOUT, pmcraid_timeout_handler); +} + +/** + * pmcraid_identify_hrrq - registers host rrq buffers with IOA + * @cmd: pointer to command block to be used for identify hrrq + * + * Return Value + * none + */ static void pmcraid_identify_hrrq(struct pmcraid_cmd *cmd) { struct pmcraid_instance *pinstance = cmd->drv_inst; struct pmcraid_ioarcb *ioarcb = &cmd->ioa_cb->ioarcb; - int index = 0; + int index = cmd->hrrq_index; __be64 hrrq_addr = cpu_to_be64(pinstance->hrrq_start_bus_addr[index]); u32 hrrq_size = cpu_to_be32(sizeof(u32) * PMCRAID_MAX_CMD); + void (*done_function)(struct pmcraid_cmd *); pmcraid_reinit_cmdblk(cmd); + cmd->hrrq_index = index + 1; + + if (cmd->hrrq_index < pinstance->num_hrrq) { + done_function = pmcraid_identify_hrrq; + } else { + cmd->hrrq_index = 0; + done_function = pmcraid_get_fwversion; + } /* Initialize ioarcb */ ioarcb->request_type = REQ_TYPE_IOACMD; @@ -980,8 +1142,8 @@ static void pmcraid_identify_hrrq(struct pmcraid_cmd *cmd) /* IOA expects 64-bit pci address to be written in B.E format * (i.e cdb[2]=MSByte..cdb[9]=LSB. */ - pmcraid_info("HRRQ_IDENTIFY with hrrq:ioarcb => %llx:%llx\n", - hrrq_addr, ioarcb->ioarcb_bus_addr); + pmcraid_info("HRRQ_IDENTIFY with hrrq:ioarcb:index => %llx:%llx:%x\n", + hrrq_addr, ioarcb->ioarcb_bus_addr, index); memcpy(&(ioarcb->cdb[2]), &hrrq_addr, sizeof(hrrq_addr)); memcpy(&(ioarcb->cdb[10]), &hrrq_size, sizeof(hrrq_size)); @@ -990,7 +1152,7 @@ static void pmcraid_identify_hrrq(struct pmcraid_cmd *cmd) * Note that this gets called even during reset from SCSI mid-layer * or tasklet */ - pmcraid_send_cmd(cmd, pmcraid_querycfg, + pmcraid_send_cmd(cmd, done_function, PMCRAID_INTERNAL_TIMEOUT, pmcraid_timeout_handler); } @@ -1047,7 +1209,7 @@ static struct pmcraid_cmd *pmcraid_init_hcam } if (type == PMCRAID_HCAM_CODE_CONFIG_CHANGE) { - rcb_size = sizeof(struct pmcraid_hcam_ccn); + rcb_size = sizeof(struct pmcraid_hcam_ccn_ext); cmd_done = pmcraid_process_ccn; dma = pinstance->ccn.baddr + PMCRAID_AEN_HDR_SIZE; hcam = &pinstance->ccn; @@ -1094,7 +1256,7 @@ static struct pmcraid_cmd *pmcraid_init_hcam * This function will send a Host Controlled Async command to IOA. * * Return value: - * none + * none */ static void pmcraid_send_hcam(struct pmcraid_instance *pinstance, u8 type) { @@ -1202,18 +1364,25 @@ static void pmcraid_cancel_ldn(struct pmcraid_cmd *cmd) /** * pmcraid_expose_resource - check if the resource can be exposed to OS * + * @fw_version: firmware version code * @cfgte: pointer to configuration table entry of the resource * * Return value: - * true if resource can be added to midlayer, false(0) otherwise + * true if resource can be added to midlayer, false(0) otherwise */ -static int pmcraid_expose_resource(struct pmcraid_config_table_entry *cfgte) +static int pmcraid_expose_resource(u16 fw_version, + struct pmcraid_config_table_entry *cfgte) { int retval = 0; - if (cfgte->resource_type == RES_TYPE_VSET) - retval = ((cfgte->unique_flags1 & 0x80) == 0); - else if (cfgte->resource_type == RES_TYPE_GSCSI) + if (cfgte->resource_type == RES_TYPE_VSET) { + if (fw_version <= PMCRAID_FW_VERSION_1) + retval = ((cfgte->unique_flags1 & 0x80) == 0); + else + retval = ((cfgte->unique_flags0 & 0x80) == 0 && + (cfgte->unique_flags1 & 0x80) == 0); + + } else if (cfgte->resource_type == RES_TYPE_GSCSI) retval = (RES_BUS(cfgte->resource_address) != PMCRAID_VIRTUAL_ENCL_BUS_ID); return retval; @@ -1246,8 +1415,8 @@ static struct genl_family pmcraid_event_family = { * pmcraid_netlink_init - registers pmcraid_event_family * * Return value: - * 0 if the pmcraid_event_family is successfully registered - * with netlink generic, non-zero otherwise + * 0 if the pmcraid_event_family is successfully registered + * with netlink generic, non-zero otherwise */ static int pmcraid_netlink_init(void) { @@ -1268,7 +1437,7 @@ static int pmcraid_netlink_init(void) * pmcraid_netlink_release - unregisters pmcraid_event_family * * Return value: - * none + * none */ static void pmcraid_netlink_release(void) { @@ -1283,31 +1452,30 @@ static void pmcraid_netlink_release(void) * Return value: * 0 if success, error value in case of any failure. */ -static int pmcraid_notify_aen(struct pmcraid_instance *pinstance, u8 type) +static int pmcraid_notify_aen( + struct pmcraid_instance *pinstance, + struct pmcraid_aen_msg *aen_msg, + u32 data_size +) { struct sk_buff *skb; - struct pmcraid_aen_msg *aen_msg; void *msg_header; - int data_size, total_size; + u32 total_size, nla_genl_hdr_total_size; int result; - - if (type == PMCRAID_HCAM_CODE_LOG_DATA) { - aen_msg = pinstance->ldn.msg; - data_size = pinstance->ldn.hcam->data_len; - } else { - aen_msg = pinstance->ccn.msg; - data_size = pinstance->ccn.hcam->data_len; - } - - data_size += sizeof(struct pmcraid_hcam_hdr); aen_msg->hostno = (pinstance->host->unique_id << 16 | MINOR(pinstance->cdev.dev)); aen_msg->length = data_size; + data_size += sizeof(*aen_msg); total_size = nla_total_size(data_size); - skb = genlmsg_new(total_size, GFP_ATOMIC); + /* Add GENL_HDR to total_size */ + nla_genl_hdr_total_size = + (total_size + (GENL_HDRLEN + + ((struct genl_family *)&pmcraid_event_family)->hdrsize) + + NLMSG_HDRLEN); + skb = genlmsg_new(nla_genl_hdr_total_size, GFP_ATOMIC); if (!skb) { @@ -1329,7 +1497,7 @@ static int pmcraid_notify_aen(struct pmcraid_instance *pinstance, u8 type) result = nla_put(skb, PMCRAID_AEN_ATTR_EVENT, data_size, aen_msg); if (result) { - pmcraid_err("failed to copy AEN attribute data \n"); + pmcraid_err("failed to copy AEN attribute data\n"); nlmsg_free(skb); return -EINVAL; } @@ -1350,13 +1518,57 @@ static int pmcraid_notify_aen(struct pmcraid_instance *pinstance, u8 type) * value. */ if (result) - pmcraid_info("failed to send %s event message %x!\n", - type == PMCRAID_HCAM_CODE_LOG_DATA ? "LDN" : "CCN", - result); + pmcraid_info("error (%x) sending aen event message\n", result); return result; } /** + * pmcraid_notify_ccn - notifies about CCN event msg to user space + * @pinstance: pointer adapter instance structure + * + * Return value: + * 0 if success, error value in case of any failure + */ +static int pmcraid_notify_ccn(struct pmcraid_instance *pinstance) +{ + return pmcraid_notify_aen(pinstance, + pinstance->ccn.msg, + pinstance->ccn.hcam->data_len + + sizeof(struct pmcraid_hcam_hdr)); +} + +/** + * pmcraid_notify_ldn - notifies about CCN event msg to user space + * @pinstance: pointer adapter instance structure + * + * Return value: + * 0 if success, error value in case of any failure + */ +static int pmcraid_notify_ldn(struct pmcraid_instance *pinstance) +{ + return pmcraid_notify_aen(pinstance, + pinstance->ldn.msg, + pinstance->ldn.hcam->data_len + + sizeof(struct pmcraid_hcam_hdr)); +} + +/** + * pmcraid_notify_ioastate - sends IOA state event msg to user space + * @pinstance: pointer adapter instance structure + * @evt: controller state event to be sent + * + * Return value: + * 0 if success, error value in case of any failure + */ +static void pmcraid_notify_ioastate(struct pmcraid_instance *pinstance, u32 evt) +{ + pinstance->scn.ioa_state = evt; + pmcraid_notify_aen(pinstance, + &pinstance->scn.msg, + sizeof(u32)); +} + +/** * pmcraid_handle_config_change - Handle a config change from the adapter * @pinstance: pointer to per adapter instance structure * @@ -1375,10 +1587,12 @@ static void pmcraid_handle_config_change(struct pmcraid_instance *pinstance) unsigned long host_lock_flags; u32 new_entry = 1; u32 hidden_entry = 0; + u16 fw_version; int rc; ccn_hcam = (struct pmcraid_hcam_ccn *)pinstance->ccn.hcam; cfg_entry = &ccn_hcam->cfg_entry; + fw_version = be16_to_cpu(pinstance->inq_data->fw_version); pmcraid_info ("CCN(%x): %x type: %x lost: %x flags: %x res: %x:%x:%x:%x\n", @@ -1391,7 +1605,10 @@ static void pmcraid_handle_config_change(struct pmcraid_instance *pinstance) RES_IS_VSET(*cfg_entry) ? PMCRAID_VSET_BUS_ID : (RES_IS_GSCSI(*cfg_entry) ? PMCRAID_PHYS_BUS_ID : RES_BUS(cfg_entry->resource_address)), - RES_IS_VSET(*cfg_entry) ? cfg_entry->unique_flags1 : + RES_IS_VSET(*cfg_entry) ? + (fw_version <= PMCRAID_FW_VERSION_1 ? + cfg_entry->unique_flags1 : + cfg_entry->array_id & 0xFF) : RES_TARGET(cfg_entry->resource_address), RES_LUN(cfg_entry->resource_address)); @@ -1415,11 +1632,16 @@ static void pmcraid_handle_config_change(struct pmcraid_instance *pinstance) */ if (pinstance->ccn.hcam->notification_type == NOTIFICATION_TYPE_ENTRY_CHANGED && - cfg_entry->resource_type == RES_TYPE_VSET && - cfg_entry->unique_flags1 & 0x80) { - hidden_entry = 1; - } else if (!pmcraid_expose_resource(cfg_entry)) + cfg_entry->resource_type == RES_TYPE_VSET) { + + if (fw_version <= PMCRAID_FW_VERSION_1) + hidden_entry = (cfg_entry->unique_flags1 & 0x80) != 0; + else + hidden_entry = (cfg_entry->unique_flags1 & 0x80) != 0; + + } else if (!pmcraid_expose_resource(fw_version, cfg_entry)) { goto out_notify_apps; + } spin_lock_irqsave(&pinstance->resource_lock, lock_flags); list_for_each_entry(res, &pinstance->used_res_q, queue) { @@ -1466,13 +1688,15 @@ static void pmcraid_handle_config_change(struct pmcraid_instance *pinstance) list_add_tail(&res->queue, &pinstance->used_res_q); } - memcpy(&res->cfg_entry, cfg_entry, - sizeof(struct pmcraid_config_table_entry)); + memcpy(&res->cfg_entry, cfg_entry, pinstance->config_table_entry_size); if (pinstance->ccn.hcam->notification_type == NOTIFICATION_TYPE_ENTRY_DELETED || hidden_entry) { if (res->scsi_dev) { - res->cfg_entry.unique_flags1 &= 0x7F; + if (fw_version <= PMCRAID_FW_VERSION_1) + res->cfg_entry.unique_flags1 &= 0x7F; + else + res->cfg_entry.array_id &= 0xFF; res->change_detected = RES_CHANGE_DEL; res->cfg_entry.resource_handle = PMCRAID_INVALID_RES_HANDLE; @@ -1491,7 +1715,7 @@ out_notify_apps: /* Notify configuration changes to registered applications.*/ if (!pmcraid_disable_aen) - pmcraid_notify_aen(pinstance, PMCRAID_HCAM_CODE_CONFIG_CHANGE); + pmcraid_notify_ccn(pinstance); cmd = pmcraid_init_hcam(pinstance, PMCRAID_HCAM_CODE_CONFIG_CHANGE); if (cmd) @@ -1528,7 +1752,7 @@ void pmcraid_ioasc_logger(u32 ioasc, struct pmcraid_cmd *cmd) return; /* log the error string */ - pmcraid_err("cmd [%d] for resource %x failed with %x(%s)\n", + pmcraid_err("cmd [%x] for resource %x failed with %x(%s)\n", cmd->ioa_cb->ioarcb.cdb[0], cmd->ioa_cb->ioarcb.resource_handle, le32_to_cpu(ioasc), error_info->error_string); @@ -1663,7 +1887,7 @@ static void pmcraid_process_ldn(struct pmcraid_cmd *cmd) } /* send netlink message for HCAM notification if enabled */ if (!pmcraid_disable_aen) - pmcraid_notify_aen(pinstance, PMCRAID_HCAM_CODE_LOG_DATA); + pmcraid_notify_ldn(pinstance); cmd = pmcraid_init_hcam(pinstance, PMCRAID_HCAM_CODE_LOG_DATA); if (cmd) @@ -1701,10 +1925,13 @@ static void pmcraid_unregister_hcams(struct pmcraid_cmd *cmd) atomic_set(&pinstance->ldn.ignore, 1); /* If adapter reset was forced as part of runtime reset sequence, - * start the reset sequence. + * start the reset sequence. Reset will be triggered even in case + * IOA unit_check. */ - if (pinstance->force_ioa_reset && !pinstance->ioa_bringdown) { + if ((pinstance->force_ioa_reset && !pinstance->ioa_bringdown) || + pinstance->ioa_unit_check) { pinstance->force_ioa_reset = 0; + pinstance->ioa_unit_check = 0; pinstance->ioa_state = IOA_STATE_IN_RESET_ALERT; pmcraid_reset_alert(cmd); return; @@ -1735,10 +1962,13 @@ static int pmcraid_reset_enable_ioa(struct pmcraid_instance *pinstance) pmcraid_enable_interrupts(pinstance, PMCRAID_PCI_INTERRUPTS); if (intrs & INTRS_TRANSITION_TO_OPERATIONAL) { - iowrite32(INTRS_TRANSITION_TO_OPERATIONAL, - pinstance->int_regs.ioa_host_interrupt_mask_reg); - iowrite32(INTRS_TRANSITION_TO_OPERATIONAL, - pinstance->int_regs.ioa_host_interrupt_clr_reg); + if (!pinstance->interrupt_mode) { + iowrite32(INTRS_TRANSITION_TO_OPERATIONAL, + pinstance->int_regs. + ioa_host_interrupt_mask_reg); + iowrite32(INTRS_TRANSITION_TO_OPERATIONAL, + pinstance->int_regs.ioa_host_interrupt_clr_reg); + } return 1; } else { return 0; @@ -1777,8 +2007,19 @@ static void pmcraid_soft_reset(struct pmcraid_cmd *cmd) doorbell = DOORBELL_RUNTIME_RESET | DOORBELL_ENABLE_DESTRUCTIVE_DIAGS; + /* Since we do RESET_ALERT and Start BIST we have to again write + * MSIX Doorbell to indicate the interrupt mode + */ + if (pinstance->interrupt_mode) { + iowrite32(DOORBELL_INTR_MODE_MSIX, + pinstance->int_regs.host_ioa_interrupt_reg); + ioread32(pinstance->int_regs.host_ioa_interrupt_reg); + } + iowrite32(doorbell, pinstance->int_regs.host_ioa_interrupt_reg); + ioread32(pinstance->int_regs.host_ioa_interrupt_reg), int_reg = ioread32(pinstance->int_regs.ioa_host_interrupt_reg); + pmcraid_info("Waiting for IOA to become operational %x:%x\n", ioread32(pinstance->int_regs.host_ioa_interrupt_reg), int_reg); @@ -1854,7 +2095,8 @@ static void pmcraid_fail_outstanding_cmds(struct pmcraid_instance *pinstance) } else if (cmd->cmd_done == pmcraid_internal_done || cmd->cmd_done == pmcraid_erp_done) { cmd->cmd_done(cmd); - } else if (cmd->cmd_done != pmcraid_ioa_reset) { + } else if (cmd->cmd_done != pmcraid_ioa_reset && + cmd->cmd_done != pmcraid_ioa_shutdown_done) { pmcraid_return_cmd(cmd); } @@ -1964,6 +2206,13 @@ static void pmcraid_ioa_reset(struct pmcraid_cmd *cmd) pinstance->ioa_reset_attempts = 0; pmcraid_err("IOA didn't respond marking it as dead\n"); pinstance->ioa_state = IOA_STATE_DEAD; + + if (pinstance->ioa_bringdown) + pmcraid_notify_ioastate(pinstance, + PMC_DEVICE_EVENT_SHUTDOWN_FAILED); + else + pmcraid_notify_ioastate(pinstance, + PMC_DEVICE_EVENT_RESET_FAILED); reset_complete = 1; break; } @@ -1971,7 +2220,6 @@ static void pmcraid_ioa_reset(struct pmcraid_cmd *cmd) /* Once either bist or pci reset is done, restore PCI config * space. If this fails, proceed with hard reset again */ - if (pci_restore_state(pinstance->pdev)) { pmcraid_info("config-space error resetting again\n"); pinstance->ioa_state = IOA_STATE_IN_RESET_ALERT; @@ -2002,6 +2250,8 @@ static void pmcraid_ioa_reset(struct pmcraid_cmd *cmd) pinstance->ioa_shutdown_type = SHUTDOWN_NONE; pinstance->ioa_bringdown = 0; pinstance->ioa_state = IOA_STATE_UNKNOWN; + pmcraid_notify_ioastate(pinstance, + PMC_DEVICE_EVENT_SHUTDOWN_SUCCESS); reset_complete = 1; } else { /* bring-up IOA, so proceed with soft reset @@ -2051,6 +2301,8 @@ static void pmcraid_ioa_reset(struct pmcraid_cmd *cmd) */ if (pinstance->ioa_shutdown_type == SHUTDOWN_NONE && pinstance->force_ioa_reset == 0) { + pmcraid_notify_ioastate(pinstance, + PMC_DEVICE_EVENT_RESET_SUCCESS); reset_complete = 1; } else { if (pinstance->ioa_shutdown_type != SHUTDOWN_NONE) @@ -2116,6 +2368,8 @@ static void pmcraid_initiate_reset(struct pmcraid_instance *pinstance) pinstance->ioa_shutdown_type = SHUTDOWN_NONE; pinstance->reset_cmd = cmd; pinstance->force_ioa_reset = 1; + pmcraid_notify_ioastate(pinstance, + PMC_DEVICE_EVENT_RESET_START); pmcraid_ioa_reset(cmd); } } @@ -2191,7 +2445,7 @@ static int pmcraid_reset_reload( wait_event(pinstance->reset_wait_q, !pinstance->ioa_reset_in_progress); - pmcraid_info("reset_reload: reset is complete !! \n"); + pmcraid_info("reset_reload: reset is complete !!\n"); scsi_unblock_requests(pinstance->host); if (pinstance->ioa_state == target_state) reset = 0; @@ -2225,6 +2479,8 @@ static int pmcraid_reset_bringdown(struct pmcraid_instance *pinstance) */ static int pmcraid_reset_bringup(struct pmcraid_instance *pinstance) { + pmcraid_notify_ioastate(pinstance, PMC_DEVICE_EVENT_RESET_START); + return pmcraid_reset_reload(pinstance, SHUTDOWN_NONE, IOA_STATE_OPERATIONAL); @@ -2704,7 +2960,7 @@ static struct pmcraid_cmd *pmcraid_abort_cmd(struct pmcraid_cmd *cmd) pmcraid_info("command (%d) CDB[0] = %x for %x\n", le32_to_cpu(cancel_cmd->ioa_cb->ioarcb.response_handle) >> 2, - cmd->ioa_cb->ioarcb.cdb[0], + cancel_cmd->ioa_cb->ioarcb.cdb[0], le32_to_cpu(cancel_cmd->ioa_cb->ioarcb.resource_handle)); pmcraid_send_cmd(cancel_cmd, @@ -2729,8 +2985,8 @@ static int pmcraid_abort_complete(struct pmcraid_cmd *cancel_cmd) u32 ioasc; wait_for_completion(&cancel_cmd->wait_for_completion); - res = cancel_cmd->u.res; - cancel_cmd->u.res = NULL; + res = cancel_cmd->res; + cancel_cmd->res = NULL; ioasc = le32_to_cpu(cancel_cmd->ioa_cb->ioasa.ioasc); /* If the abort task is not timed out we will get a Good completion @@ -2823,7 +3079,7 @@ static int pmcraid_eh_abort_handler(struct scsi_cmnd *scsi_cmd) host_lock_flags); if (cancel_cmd) { - cancel_cmd->u.res = cmd->scsi_cmd->device->hostdata; + cancel_cmd->res = cmd->scsi_cmd->device->hostdata; rc = pmcraid_abort_complete(cancel_cmd); } @@ -2842,7 +3098,7 @@ static int pmcraid_eh_abort_handler(struct scsi_cmnd *scsi_cmd) * takes care by locking/unlocking host_lock. * * Return value - * SUCCESS or FAILED + * SUCCESS or FAILED */ static int pmcraid_eh_device_reset_handler(struct scsi_cmnd *scmd) { @@ -2879,7 +3135,7 @@ static int pmcraid_eh_target_reset_handler(struct scsi_cmnd *scmd) * Initiates adapter reset to bring it up to operational state * * Return value - * SUCCESS or FAILED + * SUCCESS or FAILED */ static int pmcraid_eh_host_reset_handler(struct scsi_cmnd *scmd) { @@ -2991,7 +3247,7 @@ pmcraid_init_ioadls(struct pmcraid_cmd *cmd, int sgcount) * to firmware. This builds ioadl descriptors and sets up ioarcb fields. * * Return value: - * 0 on success or -1 on failure + * 0 on success or -1 on failure */ static int pmcraid_build_ioadl( struct pmcraid_instance *pinstance, @@ -3049,7 +3305,7 @@ static int pmcraid_build_ioadl( * Free a DMA'able memory previously allocated with pmcraid_alloc_sglist * * Return value: - * none + * none */ static void pmcraid_free_sglist(struct pmcraid_sglist *sglist) { @@ -3070,7 +3326,7 @@ static void pmcraid_free_sglist(struct pmcraid_sglist *sglist) * list. * * Return value - * pointer to sglist / NULL on failure + * pointer to sglist / NULL on failure */ static struct pmcraid_sglist *pmcraid_alloc_sglist(int buflen) { @@ -3224,11 +3480,12 @@ static int pmcraid_queuecommand( struct pmcraid_resource_entry *res; struct pmcraid_ioarcb *ioarcb; struct pmcraid_cmd *cmd; + u32 fw_version; int rc = 0; pinstance = (struct pmcraid_instance *)scsi_cmd->device->host->hostdata; - + fw_version = be16_to_cpu(pinstance->inq_data->fw_version); scsi_cmd->scsi_done = done; res = scsi_cmd->device->hostdata; scsi_cmd->result = (DID_OK << 16); @@ -3247,6 +3504,15 @@ static int pmcraid_queuecommand( if (pinstance->ioa_reset_in_progress) return SCSI_MLQUEUE_HOST_BUSY; + /* Firmware doesn't support SYNCHRONIZE_CACHE command (0x35), complete + * the command here itself with success return + */ + if (scsi_cmd->cmnd[0] == SYNCHRONIZE_CACHE) { + pmcraid_info("SYNC_CACHE(0x35), completing in driver itself\n"); + scsi_cmd->scsi_done(scsi_cmd); + return 0; + } + /* initialize the command and IOARCB to be sent to IOA */ cmd = pmcraid_get_free_cmd(pinstance); @@ -3261,6 +3527,13 @@ static int pmcraid_queuecommand( ioarcb->resource_handle = res->cfg_entry.resource_handle; ioarcb->request_type = REQ_TYPE_SCSI; + /* set hrrq number where the IOA should respond to. Note that all cmds + * generated internally uses hrrq_id 0, exception to this is the cmd + * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses + * hrrq_id assigned here in queuecommand + */ + ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) % + pinstance->num_hrrq; cmd->cmd_done = pmcraid_io_done; if (RES_IS_GSCSI(res->cfg_entry) || RES_IS_VSET(res->cfg_entry)) { @@ -3287,7 +3560,9 @@ static int pmcraid_queuecommand( RES_IS_VSET(res->cfg_entry) ? PMCRAID_VSET_BUS_ID : PMCRAID_PHYS_BUS_ID, RES_IS_VSET(res->cfg_entry) ? - res->cfg_entry.unique_flags1 : + (fw_version <= PMCRAID_FW_VERSION_1 ? + res->cfg_entry.unique_flags1 : + res->cfg_entry.array_id & 0xFF) : RES_TARGET(res->cfg_entry.resource_address), RES_LUN(res->cfg_entry.resource_address)); @@ -3465,6 +3740,7 @@ static long pmcraid_ioctl_passthrough( unsigned long request_buffer; unsigned long request_offset; unsigned long lock_flags; + u32 ioasc; int request_size; int buffer_size; u8 access, direction; @@ -3566,6 +3842,14 @@ static long pmcraid_ioctl_passthrough( buffer->ioarcb.add_cmd_param_length); } + /* set hrrq number where the IOA should respond to. Note that all cmds + * generated internally uses hrrq_id 0, exception to this is the cmd + * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses + * hrrq_id assigned here in queuecommand + */ + ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) % + pinstance->num_hrrq; + if (request_size) { rc = pmcraid_build_passthrough_ioadls(cmd, request_size, @@ -3606,6 +3890,14 @@ static long pmcraid_ioctl_passthrough( _pmcraid_fire_command(cmd); spin_unlock_irqrestore(pinstance->host->host_lock, lock_flags); + /* NOTE ! Remove the below line once abort_task is implemented + * in firmware. This line disables ioctl command timeout handling logic + * similar to IO command timeout handling, making ioctl commands to wait + * until the command completion regardless of timeout value specified in + * ioarcb + */ + buffer->ioarcb.cmd_timeout = 0; + /* If command timeout is specified put caller to wait till that time, * otherwise it would be blocking wait. If command gets timed out, it * will be aborted. @@ -3620,25 +3912,47 @@ static long pmcraid_ioctl_passthrough( le32_to_cpu(cmd->ioa_cb->ioarcb.response_handle >> 2), cmd->ioa_cb->ioarcb.cdb[0]); - rc = -ETIMEDOUT; spin_lock_irqsave(pinstance->host->host_lock, lock_flags); cancel_cmd = pmcraid_abort_cmd(cmd); spin_unlock_irqrestore(pinstance->host->host_lock, lock_flags); if (cancel_cmd) { wait_for_completion(&cancel_cmd->wait_for_completion); + ioasc = cancel_cmd->ioa_cb->ioasa.ioasc; pmcraid_return_cmd(cancel_cmd); + + /* if abort task couldn't find the command i.e it got + * completed prior to aborting, return good completion. + * if command got aborted succesfully or there was IOA + * reset due to abort task itself getting timedout then + * return -ETIMEDOUT + */ + if (ioasc == PMCRAID_IOASC_IOA_WAS_RESET || + PMCRAID_IOASC_SENSE_KEY(ioasc) == 0x00) { + if (ioasc != PMCRAID_IOASC_GC_IOARCB_NOTFOUND) + rc = -ETIMEDOUT; + goto out_handle_response; + } } - goto out_free_sglist; + /* no command block for abort task or abort task failed to abort + * the IOARCB, then wait for 150 more seconds and initiate reset + * sequence after timeout + */ + if (!wait_for_completion_timeout( + &cmd->wait_for_completion, + msecs_to_jiffies(150 * 1000))) { + pmcraid_reset_bringup(cmd->drv_inst); + rc = -ETIMEDOUT; + } } +out_handle_response: /* If the command failed for any reason, copy entire IOASA buffer and * return IOCTL success. If copying IOASA to user-buffer fails, return * EFAULT */ - if (le32_to_cpu(cmd->ioa_cb->ioasa.ioasc)) { - + if (PMCRAID_IOASC_SENSE_KEY(le32_to_cpu(cmd->ioa_cb->ioasa.ioasc))) { void *ioasa = (void *)(arg + offsetof(struct pmcraid_passthrough_ioctl_buffer, ioasa)); @@ -3651,6 +3965,7 @@ static long pmcraid_ioctl_passthrough( rc = -EFAULT; } } + /* If the data transfer was from device, copy the data onto user * buffers */ @@ -3699,7 +4014,7 @@ static long pmcraid_ioctl_driver( int rc = -ENOSYS; if (!access_ok(VERIFY_READ, user_buffer, _IOC_SIZE(cmd))) { - pmcraid_err("ioctl_driver: access fault in request buffer \n"); + pmcraid_err("ioctl_driver: access fault in request buffer\n"); return -EFAULT; } @@ -4011,36 +4326,77 @@ static struct scsi_host_template pmcraid_host_template = { .proc_name = PMCRAID_DRIVER_NAME }; -/** - * pmcraid_isr_common - Common interrupt handler routine - * - * @pinstance: pointer to adapter instance - * @intrs: active interrupts (contents of ioa_host_interrupt register) - * @hrrq_id: Host RRQ index +/* + * pmcraid_isr_msix - implements MSI-X interrupt handling routine + * @irq: interrupt vector number + * @dev_id: pointer hrrq_vector * * Return Value - * none + * IRQ_HANDLED if interrupt is handled or IRQ_NONE if ignored */ -static void pmcraid_isr_common( - struct pmcraid_instance *pinstance, - u32 intrs, - int hrrq_id -) + +static irqreturn_t pmcraid_isr_msix(int irq, void *dev_id) { - u32 intrs_clear = - (intrs & INTRS_CRITICAL_OP_IN_PROGRESS) ? intrs - : INTRS_HRRQ_VALID; - iowrite32(intrs_clear, - pinstance->int_regs.ioa_host_interrupt_clr_reg); - intrs = ioread32(pinstance->int_regs.ioa_host_interrupt_reg); + struct pmcraid_isr_param *hrrq_vector; + struct pmcraid_instance *pinstance; + unsigned long lock_flags; + u32 intrs_val; + int hrrq_id; + + hrrq_vector = (struct pmcraid_isr_param *)dev_id; + hrrq_id = hrrq_vector->hrrq_id; + pinstance = hrrq_vector->drv_inst; + + if (!hrrq_id) { + /* Read the interrupt */ + intrs_val = pmcraid_read_interrupts(pinstance); + if (intrs_val && + ((ioread32(pinstance->int_regs.host_ioa_interrupt_reg) + & DOORBELL_INTR_MSIX_CLR) == 0)) { + /* Any error interrupts including unit_check, + * initiate IOA reset.In case of unit check indicate + * to reset_sequence that IOA unit checked and prepare + * for a dump during reset sequence + */ + if (intrs_val & PMCRAID_ERROR_INTERRUPTS) { + if (intrs_val & INTRS_IOA_UNIT_CHECK) + pinstance->ioa_unit_check = 1; + + pmcraid_err("ISR: error interrupts: %x \ + initiating reset\n", intrs_val); + spin_lock_irqsave(pinstance->host->host_lock, + lock_flags); + pmcraid_initiate_reset(pinstance); + spin_unlock_irqrestore( + pinstance->host->host_lock, + lock_flags); + } + /* If interrupt was as part of the ioa initialization, + * clear it. Delete the timer and wakeup the + * reset engine to proceed with reset sequence + */ + if (intrs_val & INTRS_TRANSITION_TO_OPERATIONAL) + pmcraid_clr_trans_op(pinstance); + + /* Clear the interrupt register by writing + * to host to ioa doorbell. Once done + * FW will clear the interrupt. + */ + iowrite32(DOORBELL_INTR_MSIX_CLR, + pinstance->int_regs.host_ioa_interrupt_reg); + ioread32(pinstance->int_regs.host_ioa_interrupt_reg); + - /* hrrq valid bit was set, schedule tasklet to handle the response */ - if (intrs_clear == INTRS_HRRQ_VALID) - tasklet_schedule(&(pinstance->isr_tasklet[hrrq_id])); + } + } + + tasklet_schedule(&(pinstance->isr_tasklet[hrrq_id])); + + return IRQ_HANDLED; } /** - * pmcraid_isr - implements interrupt handling routine + * pmcraid_isr - implements legacy interrupt handling routine * * @irq: interrupt vector number * @dev_id: pointer hrrq_vector @@ -4052,8 +4408,9 @@ static irqreturn_t pmcraid_isr(int irq, void *dev_id) { struct pmcraid_isr_param *hrrq_vector; struct pmcraid_instance *pinstance; - unsigned long lock_flags; u32 intrs; + unsigned long lock_flags; + int hrrq_id = 0; /* In case of legacy interrupt mode where interrupts are shared across * isrs, it may be possible that the current interrupt is not from IOA @@ -4062,21 +4419,13 @@ static irqreturn_t pmcraid_isr(int irq, void *dev_id) printk(KERN_INFO "%s(): NULL host pointer\n", __func__); return IRQ_NONE; } - hrrq_vector = (struct pmcraid_isr_param *)dev_id; pinstance = hrrq_vector->drv_inst; - /* Acquire the lock (currently host_lock) while processing interrupts. - * This interval is small as most of the response processing is done by - * tasklet without the lock. - */ - spin_lock_irqsave(pinstance->host->host_lock, lock_flags); intrs = pmcraid_read_interrupts(pinstance); - if (unlikely((intrs & PMCRAID_PCI_INTERRUPTS) == 0)) { - spin_unlock_irqrestore(pinstance->host->host_lock, lock_flags); + if (unlikely((intrs & PMCRAID_PCI_INTERRUPTS) == 0)) return IRQ_NONE; - } /* Any error interrupts including unit_check, initiate IOA reset. * In case of unit check indicate to reset_sequence that IOA unit @@ -4091,13 +4440,28 @@ static irqreturn_t pmcraid_isr(int irq, void *dev_id) pinstance->int_regs.ioa_host_interrupt_clr_reg); pmcraid_err("ISR: error interrupts: %x initiating reset\n", intrs); - intrs = ioread32(pinstance->int_regs.ioa_host_interrupt_reg); + intrs = ioread32( + pinstance->int_regs.ioa_host_interrupt_clr_reg); + spin_lock_irqsave(pinstance->host->host_lock, lock_flags); pmcraid_initiate_reset(pinstance); + spin_unlock_irqrestore(pinstance->host->host_lock, lock_flags); } else { - pmcraid_isr_common(pinstance, intrs, hrrq_vector->hrrq_id); - } + /* If interrupt was as part of the ioa initialization, + * clear. Delete the timer and wakeup the + * reset engine to proceed with reset sequence + */ + if (intrs & INTRS_TRANSITION_TO_OPERATIONAL) { + pmcraid_clr_trans_op(pinstance); + } else { + iowrite32(intrs, + pinstance->int_regs.ioa_host_interrupt_clr_reg); + ioread32( + pinstance->int_regs.ioa_host_interrupt_clr_reg); - spin_unlock_irqrestore(pinstance->host->host_lock, lock_flags); + tasklet_schedule( + &(pinstance->isr_tasklet[hrrq_id])); + } + } return IRQ_HANDLED; } @@ -4120,6 +4484,7 @@ static void pmcraid_worker_function(struct work_struct *workp) struct scsi_device *sdev; unsigned long lock_flags; unsigned long host_lock_flags; + u16 fw_version; u8 bus, target, lun; pinstance = container_of(workp, struct pmcraid_instance, worker_q); @@ -4127,6 +4492,8 @@ static void pmcraid_worker_function(struct work_struct *workp) if (!atomic_read(&pinstance->expose_resources)) return; + fw_version = be16_to_cpu(pinstance->inq_data->fw_version); + spin_lock_irqsave(&pinstance->resource_lock, lock_flags); list_for_each_entry_safe(res, temp, &pinstance->used_res_q, queue) { @@ -4166,12 +4533,16 @@ static void pmcraid_worker_function(struct work_struct *workp) if (res->change_detected == RES_CHANGE_ADD) { - if (!pmcraid_expose_resource(&res->cfg_entry)) + if (!pmcraid_expose_resource(fw_version, + &res->cfg_entry)) continue; if (RES_IS_VSET(res->cfg_entry)) { bus = PMCRAID_VSET_BUS_ID; - target = res->cfg_entry.unique_flags1; + if (fw_version <= PMCRAID_FW_VERSION_1) + target = res->cfg_entry.unique_flags1; + else + target = res->cfg_entry.array_id & 0xFF; lun = PMCRAID_VSET_LUN_ID; } else { bus = PMCRAID_PHYS_BUS_ID; @@ -4201,7 +4572,7 @@ static void pmcraid_worker_function(struct work_struct *workp) * Return Value * None */ -void pmcraid_tasklet_function(unsigned long instance) +static void pmcraid_tasklet_function(unsigned long instance) { struct pmcraid_isr_param *hrrq_vector; struct pmcraid_instance *pinstance; @@ -4210,35 +4581,12 @@ void pmcraid_tasklet_function(unsigned long instance) unsigned long host_lock_flags; spinlock_t *lockp; /* hrrq buffer lock */ int id; - u32 intrs; __le32 resp; hrrq_vector = (struct pmcraid_isr_param *)instance; pinstance = hrrq_vector->drv_inst; id = hrrq_vector->hrrq_id; lockp = &(pinstance->hrrq_lock[id]); - intrs = pmcraid_read_interrupts(pinstance); - - /* If interrupts was as part of the ioa initialization, clear and mask - * it. Delete the timer and wakeup the reset engine to proceed with - * reset sequence - */ - if (intrs & INTRS_TRANSITION_TO_OPERATIONAL) { - iowrite32(INTRS_TRANSITION_TO_OPERATIONAL, - pinstance->int_regs.ioa_host_interrupt_mask_reg); - iowrite32(INTRS_TRANSITION_TO_OPERATIONAL, - pinstance->int_regs.ioa_host_interrupt_clr_reg); - - if (pinstance->reset_cmd != NULL) { - del_timer(&pinstance->reset_cmd->timer); - spin_lock_irqsave(pinstance->host->host_lock, - host_lock_flags); - pinstance->reset_cmd->cmd_done(pinstance->reset_cmd); - spin_unlock_irqrestore(pinstance->host->host_lock, - host_lock_flags); - } - return; - } /* loop through each of the commands responded by IOA. Each HRRQ buf is * protected by its own lock. Traversals must be done within this lock @@ -4256,27 +4604,6 @@ void pmcraid_tasklet_function(unsigned long instance) int cmd_index = resp >> 2; struct pmcraid_cmd *cmd = NULL; - if (cmd_index < PMCRAID_MAX_CMD) { - cmd = pinstance->cmd_list[cmd_index]; - } else { - /* In case of invalid response handle, initiate IOA - * reset sequence. - */ - spin_unlock_irqrestore(lockp, hrrq_lock_flags); - - pmcraid_err("Invalid response %d initiating reset\n", - cmd_index); - - spin_lock_irqsave(pinstance->host->host_lock, - host_lock_flags); - pmcraid_initiate_reset(pinstance); - spin_unlock_irqrestore(pinstance->host->host_lock, - host_lock_flags); - - spin_lock_irqsave(lockp, hrrq_lock_flags); - break; - } - if (pinstance->hrrq_curr[id] < pinstance->hrrq_end[id]) { pinstance->hrrq_curr[id]++; } else { @@ -4284,6 +4611,14 @@ void pmcraid_tasklet_function(unsigned long instance) pinstance->host_toggle_bit[id] ^= 1u; } + if (cmd_index >= PMCRAID_MAX_CMD) { + /* In case of invalid response handle, log message */ + pmcraid_err("Invalid response handle %d\n", cmd_index); + resp = le32_to_cpu(*(pinstance->hrrq_curr[id])); + continue; + } + + cmd = pinstance->cmd_list[cmd_index]; spin_unlock_irqrestore(lockp, hrrq_lock_flags); spin_lock_irqsave(&pinstance->pending_pool_lock, @@ -4324,7 +4659,16 @@ void pmcraid_tasklet_function(unsigned long instance) static void pmcraid_unregister_interrupt_handler(struct pmcraid_instance *pinstance) { - free_irq(pinstance->pdev->irq, &(pinstance->hrrq_vector[0])); + int i; + + for (i = 0; i < pinstance->num_hrrq; i++) + free_irq(pinstance->hrrq_vector[i].vector, + &(pinstance->hrrq_vector[i])); + + if (pinstance->interrupt_mode) { + pci_disable_msix(pinstance->pdev); + pinstance->interrupt_mode = 0; + } } /** @@ -4337,14 +4681,70 @@ void pmcraid_unregister_interrupt_handler(struct pmcraid_instance *pinstance) static int pmcraid_register_interrupt_handler(struct pmcraid_instance *pinstance) { + int rc; struct pci_dev *pdev = pinstance->pdev; + if (pci_find_capability(pdev, PCI_CAP_ID_MSIX)) { + int num_hrrq = PMCRAID_NUM_MSIX_VECTORS; + struct msix_entry entries[PMCRAID_NUM_MSIX_VECTORS]; + int i; + for (i = 0; i < PMCRAID_NUM_MSIX_VECTORS; i++) + entries[i].entry = i; + + rc = pci_enable_msix(pdev, entries, num_hrrq); + if (rc < 0) + goto pmcraid_isr_legacy; + + /* Check how many MSIX vectors are allocated and register + * msi-x handlers for each of them giving appropriate buffer + */ + if (rc > 0) { + num_hrrq = rc; + if (pci_enable_msix(pdev, entries, num_hrrq)) + goto pmcraid_isr_legacy; + } + + for (i = 0; i < num_hrrq; i++) { + pinstance->hrrq_vector[i].hrrq_id = i; + pinstance->hrrq_vector[i].drv_inst = pinstance; + pinstance->hrrq_vector[i].vector = entries[i].vector; + rc = request_irq(pinstance->hrrq_vector[i].vector, + pmcraid_isr_msix, 0, + PMCRAID_DRIVER_NAME, + &(pinstance->hrrq_vector[i])); + + if (rc) { + int j; + for (j = 0; j < i; j++) + free_irq(entries[j].vector, + &(pinstance->hrrq_vector[j])); + pci_disable_msix(pdev); + goto pmcraid_isr_legacy; + } + } + + pinstance->num_hrrq = num_hrrq; + pinstance->interrupt_mode = 1; + iowrite32(DOORBELL_INTR_MODE_MSIX, + pinstance->int_regs.host_ioa_interrupt_reg); + ioread32(pinstance->int_regs.host_ioa_interrupt_reg); + goto pmcraid_isr_out; + } + +pmcraid_isr_legacy: + /* If MSI-X registration failed fallback to legacy mode, where + * only one hrrq entry will be used + */ pinstance->hrrq_vector[0].hrrq_id = 0; pinstance->hrrq_vector[0].drv_inst = pinstance; - pinstance->hrrq_vector[0].vector = 0; + pinstance->hrrq_vector[0].vector = pdev->irq; pinstance->num_hrrq = 1; - return request_irq(pdev->irq, pmcraid_isr, IRQF_SHARED, - PMCRAID_DRIVER_NAME, &pinstance->hrrq_vector[0]); + rc = 0; + + rc = request_irq(pdev->irq, pmcraid_isr, IRQF_SHARED, + PMCRAID_DRIVER_NAME, &pinstance->hrrq_vector[0]); +pmcraid_isr_out: + return rc; } /** @@ -4516,12 +4916,11 @@ pmcraid_release_host_rrqs(struct pmcraid_instance *pinstance, int maxindex) static int __devinit pmcraid_allocate_host_rrqs(struct pmcraid_instance *pinstance) { - int i; - int buf_count = PMCRAID_MAX_CMD / pinstance->num_hrrq; + int i, buffer_size; - for (i = 0; i < pinstance->num_hrrq; i++) { - int buffer_size = HRRQ_ENTRY_SIZE * buf_count; + buffer_size = HRRQ_ENTRY_SIZE * PMCRAID_MAX_CMD; + for (i = 0; i < pinstance->num_hrrq; i++) { pinstance->hrrq_start[i] = pci_alloc_consistent( pinstance->pdev, @@ -4529,7 +4928,8 @@ pmcraid_allocate_host_rrqs(struct pmcraid_instance *pinstance) &(pinstance->hrrq_start_bus_addr[i])); if (pinstance->hrrq_start[i] == 0) { - pmcraid_err("could not allocate host rrq: %d\n", i); + pmcraid_err("pci_alloc failed for hrrq vector : %d\n", + i); pmcraid_release_host_rrqs(pinstance, i); return -ENOMEM; } @@ -4537,7 +4937,7 @@ pmcraid_allocate_host_rrqs(struct pmcraid_instance *pinstance) memset(pinstance->hrrq_start[i], 0, buffer_size); pinstance->hrrq_curr[i] = pinstance->hrrq_start[i]; pinstance->hrrq_end[i] = - pinstance->hrrq_start[i] + buf_count - 1; + pinstance->hrrq_start[i] + PMCRAID_MAX_CMD - 1; pinstance->host_toggle_bit[i] = 1; spin_lock_init(&pinstance->hrrq_lock[i]); } @@ -4557,7 +4957,7 @@ static void pmcraid_release_hcams(struct pmcraid_instance *pinstance) if (pinstance->ccn.msg != NULL) { pci_free_consistent(pinstance->pdev, PMCRAID_AEN_HDR_SIZE + - sizeof(struct pmcraid_hcam_ccn), + sizeof(struct pmcraid_hcam_ccn_ext), pinstance->ccn.msg, pinstance->ccn.baddr); @@ -4591,7 +4991,7 @@ static int pmcraid_allocate_hcams(struct pmcraid_instance *pinstance) pinstance->ccn.msg = pci_alloc_consistent( pinstance->pdev, PMCRAID_AEN_HDR_SIZE + - sizeof(struct pmcraid_hcam_ccn), + sizeof(struct pmcraid_hcam_ccn_ext), &(pinstance->ccn.baddr)); pinstance->ldn.msg = pci_alloc_consistent( @@ -4724,6 +5124,32 @@ static void pmcraid_kill_tasklets(struct pmcraid_instance *pinstance) } /** + * pmcraid_release_buffers - release per-adapter buffers allocated + * + * @pinstance: pointer to adapter soft state + * + * Return Value + * none + */ +static void pmcraid_release_buffers(struct pmcraid_instance *pinstance) +{ + pmcraid_release_config_buffers(pinstance); + pmcraid_release_control_blocks(pinstance, PMCRAID_MAX_CMD); + pmcraid_release_cmd_blocks(pinstance, PMCRAID_MAX_CMD); + pmcraid_release_host_rrqs(pinstance, pinstance->num_hrrq); + + if (pinstance->inq_data != NULL) { + pci_free_consistent(pinstance->pdev, + sizeof(struct pmcraid_inquiry_data), + pinstance->inq_data, + pinstance->inq_data_baddr); + + pinstance->inq_data = NULL; + pinstance->inq_data_baddr = 0; + } +} + +/** * pmcraid_init_buffers - allocates memory and initializes various structures * @pinstance: pointer to per adapter instance structure * @@ -4753,20 +5179,32 @@ static int __devinit pmcraid_init_buffers(struct pmcraid_instance *pinstance) } if (pmcraid_allocate_cmd_blocks(pinstance)) { - pmcraid_err("couldn't allocate memory for cmd blocks \n"); + pmcraid_err("couldn't allocate memory for cmd blocks\n"); pmcraid_release_config_buffers(pinstance); pmcraid_release_host_rrqs(pinstance, pinstance->num_hrrq); return -ENOMEM; } if (pmcraid_allocate_control_blocks(pinstance)) { - pmcraid_err("couldn't allocate memory control blocks \n"); + pmcraid_err("couldn't allocate memory control blocks\n"); pmcraid_release_config_buffers(pinstance); pmcraid_release_cmd_blocks(pinstance, PMCRAID_MAX_CMD); pmcraid_release_host_rrqs(pinstance, pinstance->num_hrrq); return -ENOMEM; } + /* allocate DMAable memory for page D0 INQUIRY buffer */ + pinstance->inq_data = pci_alloc_consistent( + pinstance->pdev, + sizeof(struct pmcraid_inquiry_data), + &pinstance->inq_data_baddr); + + if (pinstance->inq_data == NULL) { + pmcraid_err("couldn't allocate DMA memory for INQUIRY\n"); + pmcraid_release_buffers(pinstance); + return -ENOMEM; + } + /* Initialize all the command blocks and add them to free pool. No * need to lock (free_pool_lock) as this is done in initialization * itself @@ -4785,7 +5223,7 @@ static int __devinit pmcraid_init_buffers(struct pmcraid_instance *pinstance) * pmcraid_reinit_buffers - resets various buffer pointers * @pinstance: pointer to adapter instance * Return value - * none + * none */ static void pmcraid_reinit_buffers(struct pmcraid_instance *pinstance) { @@ -4836,6 +5274,8 @@ static int __devinit pmcraid_init_instance( mapped_pci_addr + chip_cfg->ioa_host_intr; pint_regs->ioa_host_interrupt_clr_reg = mapped_pci_addr + chip_cfg->ioa_host_intr_clr; + pint_regs->ioa_host_msix_interrupt_reg = + mapped_pci_addr + chip_cfg->ioa_host_msix_intr; pint_regs->host_ioa_interrupt_reg = mapped_pci_addr + chip_cfg->host_ioa_intr; pint_regs->host_ioa_interrupt_clr_reg = @@ -4858,6 +5298,7 @@ static int __devinit pmcraid_init_instance( init_waitqueue_head(&pinstance->reset_wait_q); atomic_set(&pinstance->outstanding_cmds, 0); + atomic_set(&pinstance->last_message_id, 0); atomic_set(&pinstance->expose_resources, 0); INIT_LIST_HEAD(&pinstance->free_res_q); @@ -4883,23 +5324,6 @@ static int __devinit pmcraid_init_instance( } /** - * pmcraid_release_buffers - release per-adapter buffers allocated - * - * @pinstance: pointer to adapter soft state - * - * Return Value - * none - */ -static void pmcraid_release_buffers(struct pmcraid_instance *pinstance) -{ - pmcraid_release_config_buffers(pinstance); - pmcraid_release_control_blocks(pinstance, PMCRAID_MAX_CMD); - pmcraid_release_cmd_blocks(pinstance, PMCRAID_MAX_CMD); - pmcraid_release_host_rrqs(pinstance, pinstance->num_hrrq); - -} - -/** * pmcraid_shutdown - shutdown adapter controller. * @pdev: pci device struct * @@ -4958,7 +5382,7 @@ static int pmcraid_setup_chrdev(struct pmcraid_instance *pinstance) pmcraid_release_minor(minor); else device_create(pmcraid_class, NULL, MKDEV(pmcraid_major, minor), - NULL, "pmcsas%u", minor); + NULL, "%s%u", PMCRAID_DEVFILE, minor); return error; } @@ -5050,7 +5474,6 @@ static int pmcraid_resume(struct pci_dev *pdev) struct pmcraid_instance *pinstance = pci_get_drvdata(pdev); struct Scsi_Host *host = pinstance->host; int rc; - int hrrqs; pci_set_power_state(pdev, PCI_D0); pci_enable_wake(pdev, PCI_D0, 0); @@ -5077,8 +5500,8 @@ static int pmcraid_resume(struct pci_dev *pdev) goto disable_device; } + pmcraid_disable_interrupts(pinstance, ~0); atomic_set(&pinstance->outstanding_cmds, 0); - hrrqs = pinstance->num_hrrq; rc = pmcraid_register_interrupt_handler(pinstance); if (rc) { @@ -5100,7 +5523,7 @@ static int pmcraid_resume(struct pci_dev *pdev) * state. */ if (pmcraid_reset_bringup(pinstance)) { - dev_err(&pdev->dev, "couldn't initialize IOA \n"); + dev_err(&pdev->dev, "couldn't initialize IOA\n"); rc = -ENODEV; goto release_tasklets; } @@ -5108,6 +5531,7 @@ static int pmcraid_resume(struct pci_dev *pdev) return 0; release_tasklets: + pmcraid_disable_interrupts(pinstance, ~0); pmcraid_kill_tasklets(pinstance); pmcraid_unregister_interrupt_handler(pinstance); @@ -5129,7 +5553,7 @@ disable_device: /** * pmcraid_complete_ioa_reset - Called by either timer or tasklet during - * completion of the ioa reset + * completion of the ioa reset * @cmd: pointer to reset command block */ static void pmcraid_complete_ioa_reset(struct pmcraid_cmd *cmd) @@ -5204,11 +5628,14 @@ static void pmcraid_init_res_table(struct pmcraid_cmd *cmd) struct pmcraid_config_table_entry *cfgte; unsigned long lock_flags; int found, rc, i; + u16 fw_version; LIST_HEAD(old_res); if (pinstance->cfg_table->flags & MICROCODE_UPDATE_REQUIRED) pmcraid_err("IOA requires microcode download\n"); + fw_version = be16_to_cpu(pinstance->inq_data->fw_version); + /* resource list is protected by pinstance->resource_lock. * init_res_table can be called from probe (user-thread) or runtime * reset (timer/tasklet) @@ -5219,9 +5646,14 @@ static void pmcraid_init_res_table(struct pmcraid_cmd *cmd) list_move_tail(&res->queue, &old_res); for (i = 0; i < pinstance->cfg_table->num_entries; i++) { - cfgte = &pinstance->cfg_table->entries[i]; + if (be16_to_cpu(pinstance->inq_data->fw_version) <= + PMCRAID_FW_VERSION_1) + cfgte = &pinstance->cfg_table->entries[i]; + else + cfgte = (struct pmcraid_config_table_entry *) + &pinstance->cfg_table->entries_ext[i]; - if (!pmcraid_expose_resource(cfgte)) + if (!pmcraid_expose_resource(fw_version, cfgte)) continue; found = 0; @@ -5263,10 +5695,12 @@ static void pmcraid_init_res_table(struct pmcraid_cmd *cmd) */ if (found) { memcpy(&res->cfg_entry, cfgte, - sizeof(struct pmcraid_config_table_entry)); + pinstance->config_table_entry_size); pmcraid_info("New res type:%x, vset:%x, addr:%x:\n", res->cfg_entry.resource_type, - res->cfg_entry.unique_flags1, + (fw_version <= PMCRAID_FW_VERSION_1 ? + res->cfg_entry.unique_flags1 : + res->cfg_entry.array_id & 0xFF), le32_to_cpu(res->cfg_entry.resource_address)); } } @@ -5306,6 +5740,14 @@ static void pmcraid_querycfg(struct pmcraid_cmd *cmd) struct pmcraid_instance *pinstance = cmd->drv_inst; int cfg_table_size = cpu_to_be32(sizeof(struct pmcraid_config_table)); + if (be16_to_cpu(pinstance->inq_data->fw_version) <= + PMCRAID_FW_VERSION_1) + pinstance->config_table_entry_size = + sizeof(struct pmcraid_config_table_entry); + else + pinstance->config_table_entry_size = + sizeof(struct pmcraid_config_table_entry_ext); + ioarcb->request_type = REQ_TYPE_IOACMD; ioarcb->resource_handle = cpu_to_le32(PMCRAID_IOA_RES_HANDLE); @@ -5338,7 +5780,7 @@ static void pmcraid_querycfg(struct pmcraid_cmd *cmd) /** - * pmcraid_probe - PCI probe entry pointer for PMC MaxRaid controller driver + * pmcraid_probe - PCI probe entry pointer for PMC MaxRAID controller driver * @pdev: pointer to pci device structure * @dev_id: pointer to device ids structure * @@ -5485,7 +5927,7 @@ static int __devinit pmcraid_probe( */ pmcraid_info("starting IOA initialization sequence\n"); if (pmcraid_reset_bringup(pinstance)) { - dev_err(&pdev->dev, "couldn't initialize IOA \n"); + dev_err(&pdev->dev, "couldn't initialize IOA\n"); rc = 1; goto out_release_bufs; } |
