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Subject[PATCH v2 08/13] mpt3sas: Set NVMe device queue depth as 128
Date
Sets nvme device queue depth, name and displays device capabilities

Signed-off-by: Chaitra P B <chaitra.basappa@broadcom.com>
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
---
drivers/scsi/mpt3sas/mpt3sas_base.h | 2 +-
drivers/scsi/mpt3sas/mpt3sas_scsih.c | 40 ++++++++++++++++++++++++++++++++++
2 files changed, 41 insertions(+), 1 deletions(-)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h
index 0a8187e..b7855c8 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.h
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.h
@@ -115,7 +115,7 @@

#define MPT3SAS_RAID_MAX_SECTORS 8192
#define MPT3SAS_HOST_PAGE_SIZE_4K 12
-
+#define MPT3SAS_NVME_QUEUE_DEPTH 128
#define MPT_NAME_LENGTH 32 /* generic length of strings */
#define MPT_STRING_LENGTH 64

diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index 1dd9674..c5a131f 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -2290,6 +2290,7 @@ scsih_slave_configure(struct scsi_device *sdev)
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct MPT3SAS_TARGET *sas_target_priv_data;
struct _sas_device *sas_device;
+ struct _pcie_device *pcie_device;
struct _raid_device *raid_device;
unsigned long flags;
int qdepth;
@@ -2420,6 +2421,45 @@ scsih_slave_configure(struct scsi_device *sdev)
}
}

+ /* PCIe handling */
+ if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_PCIE_DEVICE) {
+ spin_lock_irqsave(&ioc->pcie_device_lock, flags);
+ pcie_device = __mpt3sas_get_pdev_by_wwid(ioc,
+ sas_device_priv_data->sas_target->sas_address);
+ if (!pcie_device) {
+ spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
+ dfailprintk(ioc, pr_warn(MPT3SAS_FMT
+ "failure at %s:%d/%s()!\n", ioc->name, __FILE__,
+ __LINE__, __func__));
+ return 1;
+ }
+
+ /*TODO-right Queue Depth?*/
+ qdepth = MPT3SAS_NVME_QUEUE_DEPTH;
+ ds = "NVMe";
+ /*TODO-Add device name when defined*/
+ sdev_printk(KERN_INFO, sdev,
+ "%s: handle(0x%04x), wwid(0x%016llx), port(%d)\n",
+ ds, handle, (unsigned long long)pcie_device->wwid,
+ pcie_device->port_num);
+ if (pcie_device->enclosure_handle != 0)
+ sdev_printk(KERN_INFO, sdev,
+ "%s: enclosure logical id(0x%016llx), slot(%d)\n",
+ ds,
+ (unsigned long long)pcie_device->enclosure_logical_id,
+ pcie_device->slot);
+ if (pcie_device->connector_name[0] != '\0')
+ sdev_printk(KERN_INFO, sdev,
+ "%s: enclosure level(0x%04x),"
+ "connector name( %s)\n", ds,
+ pcie_device->enclosure_level,
+ pcie_device->connector_name);
+ pcie_device_put(pcie_device);
+ spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
+ scsih_change_queue_depth(sdev, qdepth);
+ return 0;
+ }
+
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_addr(ioc,
sas_device_priv_data->sas_target->sas_address);
--
1.7.1
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