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scsi: megaraid_sas: NVME interface target prop added 

This patch fetch true values of NVME property from FW using New DCMD
interface MR_DCMD_DEV_GET_TARGET_PROP

Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Shivasharan S 2017-02-10 00:59:11 -08:00 committed by Martin K. Petersen
parent 15dd03811d
commit 96188a89cc
3 changed files with 155 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/scsi/megaraid/megaraid_sas.h
View File

@ -695,6 +695,18 @@ struct MR_PD_INFO {
u8 reserved1[512-428];
} __packed;
/*
* Definition of structure used to expose attributes of VD or JBOD
* (this structure is to be filled by firmware when MR_DCMD_DRV_GET_TARGET_PROP
* is fired by driver)
*/
struct MR_TARGET_PROPERTIES {
u32 max_io_size_kb;
u32 device_qdepth;
u32 sector_size;
u8 reserved[500];
} __packed;
/*
* defines the physical drive address structure
*/
@ -2090,6 +2102,8 @@ struct megasas_instance {
dma_addr_t hb_host_mem_h;
struct MR_PD_INFO *pd_info;
dma_addr_t pd_info_h;
struct MR_TARGET_PROPERTIES *tgt_prop;
dma_addr_t tgt_prop_h;
__le32 *reply_queue;
dma_addr_t reply_queue_h;

144
drivers/scsi/megaraid/megaraid_sas_base.c
View File

@ -118,6 +118,8 @@ static int megasas_register_aen(struct megasas_instance *instance,
u32 seq_num, u32 class_locale_word);
static void megasas_get_pd_info(struct megasas_instance *instance,
struct scsi_device *sdev);
static int megasas_get_target_prop(struct megasas_instance *instance,
struct scsi_device *sdev);
/*
* PCI ID table for all supported controllers
*/
@ -1834,14 +1836,16 @@ megasas_set_nvme_device_properties(struct scsi_device *sdev, u32 max_io_size)
* set nvme device properties. see - megasas_set_nvme_device_properties
*
* @sdev: scsi device
*
* @is_target_prop true, if fw provided target properties.
*/
static void megasas_set_static_target_properties(struct scsi_device *sdev)
static void megasas_set_static_target_properties(struct scsi_device *sdev,
bool is_target_prop)
{
u16 target_index = 0;
u8 interface_type;
u32 device_qd = MEGASAS_DEFAULT_CMD_PER_LUN;
u32 max_io_size_kb = MR_DEFAULT_NVME_MDTS_KB;
u32 tgt_device_qd;
struct megasas_instance *instance;
struct MR_PRIV_DEVICE *mr_device_priv_data;
@ -1868,6 +1872,18 @@ static void megasas_set_static_target_properties(struct scsi_device *sdev)
break;
}
if (is_target_prop) {
tgt_device_qd = le32_to_cpu(instance->tgt_prop->device_qdepth);
if (tgt_device_qd &&
(tgt_device_qd <= instance->host->can_queue))
device_qd = tgt_device_qd;
/* max_io_size_kb will be set to non zero for
* nvme based vd and syspd.
*/
max_io_size_kb = le32_to_cpu(instance->tgt_prop->max_io_size_kb);
}
if (instance->nvme_page_size && max_io_size_kb)
megasas_set_nvme_device_properties(sdev, (max_io_size_kb << 10));
@ -1880,6 +1896,8 @@ static int megasas_slave_configure(struct scsi_device *sdev)
{
u16 pd_index = 0;
struct megasas_instance *instance;
int ret_target_prop = DCMD_FAILED;
bool is_target_prop = false;
instance = megasas_lookup_instance(sdev->host->host_no);
if (instance->pd_list_not_supported) {
@ -1897,7 +1915,14 @@ static int megasas_slave_configure(struct scsi_device *sdev)
if ((instance->pd_info) && !MEGASAS_IS_LOGICAL(sdev))
megasas_get_pd_info(instance, sdev);
megasas_set_static_target_properties(sdev);
/* Some ventura firmware may not have instance->nvme_page_size set.
* Do not send MR_DCMD_DRV_GET_TARGET_PROP
*/
if ((instance->tgt_prop) && (instance->nvme_page_size))
ret_target_prop = megasas_get_target_prop(instance, sdev);
is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false;
megasas_set_static_target_properties(sdev, is_target_prop);
mutex_unlock(&instance->hba_mutex);
@ -5682,6 +5707,98 @@ megasas_register_aen(struct megasas_instance *instance, u32 seq_num,
return 0;
}
/* megasas_get_target_prop - Send DCMD with below details to firmware.
*
* This DCMD will fetch few properties of LD/system PD defined
* in MR_TARGET_DEV_PROPERTIES. eg. Queue Depth, MDTS value.
*
* DCMD send by drivers whenever new target is added to the OS.
*
* dcmd.opcode - MR_DCMD_DEV_GET_TARGET_PROP
* dcmd.mbox.b[0] - DCMD is to be fired for LD or system PD.
* 0 = system PD, 1 = LD.
* dcmd.mbox.s[1] - TargetID for LD/system PD.
* dcmd.sge IN - Pointer to return MR_TARGET_DEV_PROPERTIES.
*
* @instance: Adapter soft state
* @sdev: OS provided scsi device
*
* Returns 0 on success non-zero on failure.
*/
static int
megasas_get_target_prop(struct megasas_instance *instance,
struct scsi_device *sdev)
{
int ret;
struct megasas_cmd *cmd;
struct megasas_dcmd_frame *dcmd;
u16 targetId = (sdev->channel % 2) + sdev->id;
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->tgt_prop, 0, sizeof(*instance->tgt_prop));
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
dcmd->mbox.b[0] = MEGASAS_IS_LOGICAL(sdev);
dcmd->mbox.s[1] = cpu_to_le16(targetId);
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_TARGET_PROPERTIES));
dcmd->opcode = cpu_to_le32(MR_DCMD_DRV_GET_TARGET_PROP);
dcmd->sgl.sge32[0].phys_addr =
cpu_to_le32(instance->tgt_prop_h);
dcmd->sgl.sge32[0].length =
cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES));
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_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;
default:
megasas_return_cmd(instance, cmd);
}
if (ret != DCMD_SUCCESS)
dev_err(&instance->pdev->dev,
"return from %s %d return value %d\n",
__func__, __LINE__, ret);
return ret;
}
/**
* megasas_start_aen - Subscribes to AEN during driver load time
* @instance: Adapter soft state
@ -5958,9 +6075,17 @@ static int megasas_probe_one(struct pci_dev *pdev,
instance->pd_info = pci_alloc_consistent(pdev,
sizeof(struct MR_PD_INFO), &instance->pd_info_h);
instance->pd_info = pci_alloc_consistent(pdev,
sizeof(struct MR_PD_INFO), &instance->pd_info_h);
instance->tgt_prop = pci_alloc_consistent(pdev,
sizeof(struct MR_TARGET_PROPERTIES), &instance->tgt_prop_h);
if (!instance->pd_info)
dev_err(&instance->pdev->dev, "Failed to alloc mem for pd_info\n");
if (!instance->tgt_prop)
dev_err(&instance->pdev->dev, "Failed to alloc mem for tgt_prop\n");
instance->crash_dump_buf = pci_alloc_consistent(pdev,
CRASH_DMA_BUF_SIZE,
&instance->crash_dump_h);
@ -6105,6 +6230,10 @@ fail_alloc_dma_buf:
pci_free_consistent(pdev, sizeof(struct MR_PD_INFO),
instance->pd_info,
instance->pd_info_h);
if (instance->tgt_prop)
pci_free_consistent(pdev, sizeof(struct MR_TARGET_PROPERTIES),
instance->tgt_prop,
instance->tgt_prop_h);
if (instance->producer)
pci_free_consistent(pdev, sizeof(u32), instance->producer,
instance->producer_h);
@ -6377,6 +6506,10 @@ fail_init_mfi:
pci_free_consistent(pdev, sizeof(struct MR_PD_INFO),
instance->pd_info,
instance->pd_info_h);
if (instance->tgt_prop)
pci_free_consistent(pdev, sizeof(struct MR_TARGET_PROPERTIES),
instance->tgt_prop,
instance->tgt_prop_h);
if (instance->producer)
pci_free_consistent(pdev, sizeof(u32), instance->producer,
instance->producer_h);
@ -6535,11 +6668,14 @@ skip_firing_dcmds:
if (instance->evt_detail)
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->tgt_prop)
pci_free_consistent(pdev, sizeof(struct MR_TARGET_PROPERTIES),
instance->tgt_prop,
instance->tgt_prop_h);
if (instance->vf_affiliation)
pci_free_consistent(pdev, (MAX_LOGICAL_DRIVES + 1) *
sizeof(struct MR_LD_VF_AFFILIATION),

1
drivers/scsi/megaraid/megaraid_sas_fusion.h
View File

@ -694,6 +694,7 @@ struct MPI2_IOC_INIT_REQUEST {
#define MAX_RAIDMAP_PHYSICAL_DEVICES_DYN 512
#define MR_DCMD_LD_MAP_GET_INFO 0x0300e101
#define MR_DCMD_SYSTEM_PD_MAP_GET_INFO 0x0200e102
#define MR_DCMD_DRV_GET_TARGET_PROP 0x0200e103
#define MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC 0x010e8485 /* SR-IOV HB alloc*/
#define MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111 0x03200200
#define MR_DCMD_LD_VF_MAP_GET_ALL_LDS 0x03150200