Added support to set qd of drives in slave_configure.This only works for
HBA1000 attached drives.
Signed-off-by: Raghava Aditya Renukunta <raghavaaditya.renuku...@microsemi.com>
Signed-off-by: Dave Carroll <david.carr...@microsemi.com>
---
Changes in V2:
None
Changes in V3:
None
Changes in V4:
Reworked slave configure function
drivers/scsi/aacraid/linit.c | 102 ++++++++++++++++++++++++++++++-------------
1 file changed, 71 insertions(+), 31 deletions(-)
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index 1912e7b..03d935c 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -401,61 +401,89 @@ static int aac_biosparm(struct scsi_device *sdev, struct
block_device *bdev,
static int aac_slave_configure(struct scsi_device *sdev)
{
struct aac_dev *aac = (struct aac_dev *)sdev->host->hostdata;
+ int chn, tid;
+ unsigned int depth = 0;
+ unsigned int set_timeout = 0;
+
+ chn = aac_logical_to_phys(sdev_channel(sdev));
+ tid = sdev_id(sdev);
+ if (chn < AAC_MAX_BUSES && tid < AAC_MAX_TARGETS &&
+ aac->hba_map[chn][tid].devtype == AAC_DEVTYPE_NATIVE_RAW) {
+ depth = aac->hba_map[chn][tid].qd_limit;
+ set_timeout = 1;
+ goto common_config;
+ }
+
+
if (aac->jbod && (sdev->type == TYPE_DISK))
sdev->removable = 1;
- if ((sdev->type == TYPE_DISK) &&
- (sdev_channel(sdev) != CONTAINER_CHANNEL) &&
- (!aac->jbod || sdev->inq_periph_qual) &&
- (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))) {
+
+ if (sdev->type == TYPE_DISK
+ && sdev_channel(sdev) != CONTAINER_CHANNEL
+ && (!aac->jbod || sdev->inq_periph_qual)
+ && (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))) {
+
if (expose_physicals == 0)
return -ENXIO;
+
if (expose_physicals < 0)
sdev->no_uld_attach = 1;
}
- if (sdev->tagged_supported && (sdev->type == TYPE_DISK) &&
- (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2)) &&
- !sdev->no_uld_attach) {
+
+ if (sdev->tagged_supported
+ && sdev->type == TYPE_DISK
+ && (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))
+ && !sdev->no_uld_attach) {
+
struct scsi_device * dev;
struct Scsi_Host *host = sdev->host;
unsigned num_lsu = 0;
unsigned num_one = 0;
- unsigned depth;
unsigned cid;
- /*
- * Firmware has an individual device recovery time typically
- * of 35 seconds, give us a margin.
- */
- if (sdev->request_queue->rq_timeout < (45 * HZ))
- blk_queue_rq_timeout(sdev->request_queue, 45*HZ);
+ set_timeout = 1;
+
for (cid = 0; cid < aac->maximum_num_containers; ++cid)
if (aac->fsa_dev[cid].valid)
++num_lsu;
+
__shost_for_each_device(dev, host) {
- if (dev->tagged_supported && (dev->type == TYPE_DISK) &&
- (!aac->raid_scsi_mode ||
- (sdev_channel(sdev) != 2)) &&
- !dev->no_uld_attach) {
+ if (dev->tagged_supported
+ && dev->type == TYPE_DISK
+ && (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))
+ && !dev->no_uld_attach) {
if ((sdev_channel(dev) != CONTAINER_CHANNEL)
- || !aac->fsa_dev[sdev_id(dev)].valid)
+ || !aac->fsa_dev[sdev_id(dev)].valid) {
++num_lsu;
- } else
+ }
+ } else {
++num_one;
+ }
}
+
if (num_lsu == 0)
++num_lsu;
- depth = (host->can_queue - num_one) / num_lsu;
- if (depth > 256)
- depth = 256;
- else if (depth < 2)
- depth = 2;
- scsi_change_queue_depth(sdev, depth);
- } else {
- scsi_change_queue_depth(sdev, 1);
- sdev->tagged_supported = 1;
+ depth = (host->can_queue - num_one) / num_lsu;
}
+common_config:
+ /*
+ * Firmware has an individual device recovery time typically
+ * of 35 seconds, give us a margin.
+ */
+ if (set_timeout && sdev->request_queue->rq_timeout < (45 * HZ))
+ blk_queue_rq_timeout(sdev->request_queue, 45*HZ);
+
+ if (depth > 256)
+ depth = 256;
+ else if (depth < 1)
+ depth = 1;
+
+ scsi_change_queue_depth(sdev, depth);
+
+ sdev->tagged_supported = 1;
+
return 0;
}
@@ -470,6 +498,15 @@ static int aac_slave_configure(struct scsi_device *sdev)
static int aac_change_queue_depth(struct scsi_device *sdev, int depth)
{
+ struct aac_dev *aac = (struct aac_dev *)(sdev->host->hostdata);
+ int chn, tid, is_native_device = 0;
+
+ chn = aac_logical_to_phys(sdev_channel(sdev));
+ tid = sdev_id(sdev);
+ if (chn < AAC_MAX_BUSES && tid < AAC_MAX_TARGETS &&
+ aac->hba_map[chn][tid].devtype == AAC_DEVTYPE_NATIVE_RAW)
+ is_native_device = 1;
+
if (sdev->tagged_supported && (sdev->type == TYPE_DISK) &&
(sdev_channel(sdev) == CONTAINER_CHANNEL)) {
struct scsi_device * dev;
@@ -491,9 +528,12 @@ static int aac_change_queue_depth(struct scsi_device
*sdev, int depth)
else if (depth < 2)
depth = 2;
return scsi_change_queue_depth(sdev, depth);
+ } else if (is_native_device) {
+ scsi_change_queue_depth(sdev, aac->hba_map[chn][tid].qd_limit);
+ } else {
+ scsi_change_queue_depth(sdev, 1);
}
-
- return scsi_change_queue_depth(sdev, 1);
+ return sdev->queue_depth;
}
static ssize_t aac_show_raid_level(struct device *dev, struct device_attribute
*attr, char *buf)
--
2.7.4
