[SCSI] ipr: Increase max concurrent oustanding commands
Increase the total number of max concurrent outstanding commands
for the most recent family of adapters in order to improve overall
adapter performance.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 5909979..ada0af7 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -104,6 +104,7 @@
static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
{ /* Gemstone, Citrine, Obsidian, and Obsidian-E */
.mailbox = 0x0042C,
+ .max_cmds = 100,
.cache_line_size = 0x20,
.clear_isr = 1,
{
@@ -127,6 +128,7 @@
},
{ /* Snipe and Scamp */
.mailbox = 0x0052C,
+ .max_cmds = 100,
.cache_line_size = 0x20,
.clear_isr = 1,
{
@@ -150,6 +152,7 @@
},
{ /* CRoC */
.mailbox = 0x00044,
+ .max_cmds = 1000,
.cache_line_size = 0x20,
.clear_isr = 0,
{
@@ -8278,6 +8281,10 @@
if (ioa_cfg->ipr_cmd_pool)
pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
+ kfree(ioa_cfg->ipr_cmnd_list);
+ kfree(ioa_cfg->ipr_cmnd_list_dma);
+ ioa_cfg->ipr_cmnd_list = NULL;
+ ioa_cfg->ipr_cmnd_list_dma = NULL;
ioa_cfg->ipr_cmd_pool = NULL;
}
@@ -8358,6 +8365,14 @@
if (!ioa_cfg->ipr_cmd_pool)
return -ENOMEM;
+ ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL);
+ ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL);
+
+ if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) {
+ ipr_free_cmd_blks(ioa_cfg);
+ return -ENOMEM;
+ }
+
for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
@@ -8585,6 +8600,7 @@
host->max_channel = IPR_MAX_BUS_TO_SCAN;
host->unique_id = host->host_no;
host->max_cmd_len = IPR_MAX_CDB_LEN;
+ host->can_queue = ioa_cfg->max_cmds;
pci_set_drvdata(pdev, ioa_cfg);
p = &ioa_cfg->chip_cfg->regs;
@@ -8770,6 +8786,7 @@
ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
+ ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds;
if (ipr_transop_timeout)
ioa_cfg->transop_timeout = ipr_transop_timeout;