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author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-09-21 10:50:15 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-09-21 10:50:15 -0700 |
commit | 10fd71780f7d155f4e35fecfad0ebd4a725a244b (patch) | |
tree | b88976120fd8f620669ed239842ea26ecc2c5e52 /drivers/scsi/megaraid/megaraid_sas_base.c | |
parent | Merge tag 'for-5.4/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm (diff) | |
parent | scsi: hisi_sas: Fix the conflict between device gone and host reset (diff) | |
download | linux-dev-10fd71780f7d155f4e35fecfad0ebd4a725a244b.tar.xz linux-dev-10fd71780f7d155f4e35fecfad0ebd4a725a244b.zip |
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This is mostly update of the usual drivers: qla2xxx, ufs, smartpqi,
lpfc, hisi_sas, qedf, mpt3sas; plus a whole load of minor updates. The
only core change this time around is the addition of request batching
for virtio. Since batching requires an additional flag to use, it
should be invisible to the rest of the drivers"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (264 commits)
scsi: hisi_sas: Fix the conflict between device gone and host reset
scsi: hisi_sas: Add BIST support for phy loopback
scsi: hisi_sas: Add hisi_sas_debugfs_alloc() to centralise allocation
scsi: hisi_sas: Remove some unused function arguments
scsi: hisi_sas: Remove redundant work declaration
scsi: hisi_sas: Remove hisi_sas_hw.slot_complete
scsi: hisi_sas: Assign NCQ tag for all NCQ commands
scsi: hisi_sas: Update all the registers after suspend and resume
scsi: hisi_sas: Retry 3 times TMF IO for SAS disks when init device
scsi: hisi_sas: Remove sleep after issue phy reset if sas_smp_phy_control() fails
scsi: hisi_sas: Directly return when running I_T_nexus reset if phy disabled
scsi: hisi_sas: Use true/false as input parameter of sas_phy_reset()
scsi: hisi_sas: add debugfs auto-trigger for internal abort time out
scsi: virtio_scsi: unplug LUNs when events missed
scsi: scsi_dh_rdac: zero cdb in send_mode_select()
scsi: fcoe: fix null-ptr-deref Read in fc_release_transport
scsi: ufs-hisi: use devm_platform_ioremap_resource() to simplify code
scsi: ufshcd: use devm_platform_ioremap_resource() to simplify code
scsi: hisi_sas: use devm_platform_ioremap_resource() to simplify code
scsi: ufs: Use kmemdup in ufshcd_read_string_desc()
...
Diffstat (limited to 'drivers/scsi/megaraid/megaraid_sas_base.c')
-rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_base.c | 112 |
1 files changed, 91 insertions, 21 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index f9f07935556e..42cf38c1ea99 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -109,6 +109,10 @@ int event_log_level = MFI_EVT_CLASS_CRITICAL; module_param(event_log_level, int, 0644); MODULE_PARM_DESC(event_log_level, "Asynchronous event logging level- range is: -2(CLASS_DEBUG) to 4(CLASS_DEAD), Default: 2(CLASS_CRITICAL)"); +unsigned int enable_sdev_max_qd; +module_param(enable_sdev_max_qd, int, 0444); +MODULE_PARM_DESC(enable_sdev_max_qd, "Enable sdev max qd as can_queue. Default: 0"); + MODULE_LICENSE("GPL"); MODULE_VERSION(MEGASAS_VERSION); MODULE_AUTHOR("megaraidlinux.pdl@broadcom.com"); @@ -1941,25 +1945,19 @@ megasas_set_nvme_device_properties(struct scsi_device *sdev, u32 max_io_size) blk_queue_virt_boundary(sdev->request_queue, mr_nvme_pg_size - 1); } - /* - * megasas_set_static_target_properties - - * Device property set by driver are static and it is not required to be - * updated after OCR. - * - * set io timeout - * set device queue depth - * set nvme device properties. see - megasas_set_nvme_device_properties + * megasas_set_fw_assisted_qd - + * set device queue depth to can_queue + * set device queue depth to fw assisted qd * * @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_fw_assisted_qd(struct scsi_device *sdev, bool is_target_prop) { 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; @@ -1968,11 +1966,6 @@ static void megasas_set_static_target_properties(struct scsi_device *sdev, mr_device_priv_data = sdev->hostdata; interface_type = mr_device_priv_data->interface_type; - /* - * The RAID firmware may require extended timeouts. - */ - blk_queue_rq_timeout(sdev->request_queue, scmd_timeout * HZ); - switch (interface_type) { case SAS_PD: device_qd = MEGASAS_SAS_QD; @@ -1990,18 +1983,49 @@ static void megasas_set_static_target_properties(struct scsi_device *sdev, 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. - */ + if (instance->enable_sdev_max_qd && interface_type != UNKNOWN_DRIVE) + device_qd = instance->host->can_queue; + + scsi_change_queue_depth(sdev, device_qd); +} + +/* + * megasas_set_static_target_properties - + * Device property set by driver are static and it is not required to be + * updated after OCR. + * + * set io timeout + * set device queue depth + * 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, + bool is_target_prop) +{ + u32 max_io_size_kb = MR_DEFAULT_NVME_MDTS_KB; + struct megasas_instance *instance; + + instance = megasas_lookup_instance(sdev->host->host_no); + + /* + * The RAID firmware may require extended timeouts. + */ + blk_queue_rq_timeout(sdev->request_queue, scmd_timeout * HZ); + + /* max_io_size_kb will be set to non zero for + * nvme based vd and syspd. + */ + if (is_target_prop) 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)); - scsi_change_queue_depth(sdev, device_qd); - + megasas_set_fw_assisted_qd(sdev, is_target_prop); } @@ -3285,6 +3309,48 @@ fw_cmds_outstanding_show(struct device *cdev, } static ssize_t +enable_sdev_max_qd_show(struct device *cdev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(cdev); + struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; + + return snprintf(buf, PAGE_SIZE, "%d\n", instance->enable_sdev_max_qd); +} + +static ssize_t +enable_sdev_max_qd_store(struct device *cdev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(cdev); + struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; + u32 val = 0; + bool is_target_prop; + int ret_target_prop = DCMD_FAILED; + struct scsi_device *sdev; + + if (kstrtou32(buf, 0, &val) != 0) { + pr_err("megasas: could not set enable_sdev_max_qd\n"); + return -EINVAL; + } + + mutex_lock(&instance->reset_mutex); + if (val) + instance->enable_sdev_max_qd = true; + else + instance->enable_sdev_max_qd = false; + + shost_for_each_device(sdev, shost) { + ret_target_prop = megasas_get_target_prop(instance, sdev); + is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false; + megasas_set_fw_assisted_qd(sdev, is_target_prop); + } + mutex_unlock(&instance->reset_mutex); + + return strlen(buf); +} + +static ssize_t dump_system_regs_show(struct device *cdev, struct device_attribute *attr, char *buf) { @@ -3313,6 +3379,7 @@ static DEVICE_ATTR_RW(fw_crash_state); static DEVICE_ATTR_RO(page_size); static DEVICE_ATTR_RO(ldio_outstanding); static DEVICE_ATTR_RO(fw_cmds_outstanding); +static DEVICE_ATTR_RW(enable_sdev_max_qd); static DEVICE_ATTR_RO(dump_system_regs); static DEVICE_ATTR_RO(raid_map_id); @@ -3323,6 +3390,7 @@ static struct device_attribute *megaraid_host_attrs[] = { &dev_attr_page_size, &dev_attr_ldio_outstanding, &dev_attr_fw_cmds_outstanding, + &dev_attr_enable_sdev_max_qd, &dev_attr_dump_system_regs, &dev_attr_raid_map_id, NULL, @@ -5894,6 +5962,8 @@ static int megasas_init_fw(struct megasas_instance *instance) MR_MAX_RAID_MAP_SIZE_MASK); } + instance->enable_sdev_max_qd = enable_sdev_max_qd; + switch (instance->adapter_type) { case VENTURA_SERIES: fusion->pcie_bw_limitation = true; |