From 2216c30523b0a1835b6d522ffe73ca167f199f00 Mon Sep 17 00:00:00 2001 From: Sumit Saxena Date: Thu, 28 Jan 2016 21:04:26 +0530 Subject: megaraid_sas: Update device queue depth based on interface type This patch will update device Queue depth based on interface type(SAS, SATA..) for sysPDs. For Virtual disks(VDs), there will be no change in queue depth (will remain 256). To fetch interface type (SAS or SATA or FC..) of syspD, driver will send DCMD MR_DCMD_PD_GET_INFO. Signed-off-by: Sumit Saxena Signed-off-by: Kashyap Desai Signed-off-by: Martin K. Petersen --- drivers/scsi/megaraid/megaraid_sas_base.c | 127 ++++++++++++++++++++++++++++++ 1 file changed, 127 insertions(+) (limited to 'drivers/scsi/megaraid/megaraid_sas_base.c') diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index 57cf4e3b6c48..ea3994b10e2f 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -104,6 +104,8 @@ static int megasas_ld_list_query(struct megasas_instance *instance, static int megasas_issue_init_mfi(struct megasas_instance *instance); static int megasas_register_aen(struct megasas_instance *instance, u32 seq_num, u32 class_locale_word); +static int +megasas_get_pd_info(struct megasas_instance *instance, u16 device_id); /* * PCI ID table for all supported controllers */ @@ -1795,6 +1797,44 @@ void megasas_update_sdev_properties(struct scsi_device *sdev) } } +static void megasas_set_device_queue_depth(struct scsi_device *sdev) +{ + u16 pd_index = 0; + int ret = DCMD_FAILED; + struct megasas_instance *instance; + + instance = megasas_lookup_instance(sdev->host->host_no); + + if (sdev->channel < MEGASAS_MAX_PD_CHANNELS) { + pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id; + + if (instance->pd_info) { + mutex_lock(&instance->hba_mutex); + ret = megasas_get_pd_info(instance, pd_index); + mutex_unlock(&instance->hba_mutex); + } + + if (ret != DCMD_SUCCESS) + return; + + if (instance->pd_list[pd_index].driveState == MR_PD_STATE_SYSTEM) { + + switch (instance->pd_list[pd_index].interface) { + case SAS_PD: + scsi_change_queue_depth(sdev, MEGASAS_SAS_QD); + break; + + case SATA_PD: + scsi_change_queue_depth(sdev, MEGASAS_SATA_QD); + break; + + default: + scsi_change_queue_depth(sdev, MEGASAS_DEFAULT_PD_QD); + } + } + } +} + static int megasas_slave_configure(struct scsi_device *sdev) { @@ -1812,6 +1852,7 @@ static int megasas_slave_configure(struct scsi_device *sdev) return -ENXIO; } } + megasas_set_device_queue_depth(sdev); megasas_update_sdev_properties(sdev); /* @@ -3921,6 +3962,73 @@ dcmd_timeout_ocr_possible(struct megasas_instance *instance) { return INITIATE_OCR; } +static int +megasas_get_pd_info(struct megasas_instance *instance, u16 device_id) +{ + int ret; + struct megasas_cmd *cmd; + struct megasas_dcmd_frame *dcmd; + + cmd = megasas_get_cmd(instance); + + if (!cmd) { + dev_err(&instance->pdev->dev, "Failed to get cmd %s\n", __func__); + return -ENOMEM; + } + + dcmd = &cmd->frame->dcmd; + + memset(instance->pd_info, 0, sizeof(*instance->pd_info)); + memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); + + dcmd->mbox.s[0] = cpu_to_le16(device_id); + dcmd->cmd = MFI_CMD_DCMD; + dcmd->cmd_status = 0xFF; + dcmd->sge_count = 1; + dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); + dcmd->timeout = 0; + dcmd->pad_0 = 0; + dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_PD_INFO)); + dcmd->opcode = cpu_to_le32(MR_DCMD_PD_GET_INFO); + dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->pd_info_h); + dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_PD_INFO)); + + if (instance->ctrl_context && !instance->mask_interrupts) + ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); + else + ret = megasas_issue_polled(instance, cmd); + + switch (ret) { + case DCMD_SUCCESS: + instance->pd_list[device_id].interface = + instance->pd_info->state.ddf.pdType.intf; + break; + + case DCMD_TIMEOUT: + + switch (dcmd_timeout_ocr_possible(instance)) { + case INITIATE_OCR: + cmd->flags |= DRV_DCMD_SKIP_REFIRE; + megasas_reset_fusion(instance->host, + MFI_IO_TIMEOUT_OCR); + break; + case KILL_ADAPTER: + megaraid_sas_kill_hba(instance); + break; + case IGNORE_TIMEOUT: + dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", + __func__, __LINE__); + break; + } + + break; + } + + if (ret != DCMD_TIMEOUT) + megasas_return_cmd(instance, cmd); + + return ret; +} /* * megasas_get_pd_list_info - Returns FW's pd_list structure * @instance: Adapter soft state @@ -5679,6 +5787,12 @@ static int megasas_probe_one(struct pci_dev *pdev, goto fail_alloc_dma_buf; } + instance->pd_info = pci_alloc_consistent(pdev, + sizeof(struct MR_PD_INFO), &instance->pd_info_h); + + if (!instance->pd_info) + dev_err(&instance->pdev->dev, "Failed to alloc mem for pd_info\n"); + /* * Initialize locks and queues */ @@ -5695,6 +5809,7 @@ static int megasas_probe_one(struct pci_dev *pdev, spin_lock_init(&instance->completion_lock); mutex_init(&instance->reset_mutex); + mutex_init(&instance->hba_mutex); /* * Initialize PCI related and misc parameters @@ -5809,6 +5924,10 @@ fail_alloc_dma_buf: instance->evt_detail, instance->evt_detail_h); + if (instance->pd_info) + pci_free_consistent(pdev, sizeof(struct MR_PD_INFO), + instance->pd_info, + instance->pd_info_h); if (instance->producer) pci_free_consistent(pdev, sizeof(u32), instance->producer, instance->producer_h); @@ -6070,6 +6189,10 @@ fail_init_mfi: instance->evt_detail, instance->evt_detail_h); + if (instance->pd_info) + pci_free_consistent(pdev, sizeof(struct MR_PD_INFO), + instance->pd_info, + instance->pd_info_h); if (instance->producer) pci_free_consistent(pdev, sizeof(u32), instance->producer, instance->producer_h); @@ -6188,6 +6311,10 @@ static void megasas_detach_one(struct pci_dev *pdev) pci_free_consistent(pdev, sizeof(struct megasas_evt_detail), instance->evt_detail, instance->evt_detail_h); + if (instance->pd_info) + pci_free_consistent(pdev, sizeof(struct MR_PD_INFO), + instance->pd_info, + instance->pd_info_h); if (instance->vf_affiliation) pci_free_consistent(pdev, (MAX_LOGICAL_DRIVES + 1) * sizeof(struct MR_LD_VF_AFFILIATION), -- cgit v1.2.3