diff options
| author | Brian King <brking@linux.vnet.ibm.com> | 2012-03-15 03:20:10 +0100 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-03-28 16:04:47 +0200 |
| commit | 89aad428317322044673cd9a3e1685a83abcba98 (patch) | |
| tree | 44421af5c1c1bd61eee0cb8fb5f9b6f09c7ff2d1 /drivers/scsi/ipr.c | |
| parent | [SCSI] ipr: Remove unnecessary memory barriers (diff) | |
| download | linux-89aad428317322044673cd9a3e1685a83abcba98.tar.xz linux-89aad428317322044673cd9a3e1685a83abcba98.zip | |
[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>
Diffstat (limited to 'drivers/scsi/ipr.c')
| -rw-r--r-- | drivers/scsi/ipr.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index 590997961a93..ada0af745a08 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -104,6 +104,7 @@ static DEFINE_SPINLOCK(ipr_driver_lock); 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 @@ static const struct ipr_chip_cfg_t ipr_chip_cfg[] = { }, { /* Snipe and Scamp */ .mailbox = 0x0052C, + .max_cmds = 100, .cache_line_size = 0x20, .clear_isr = 1, { @@ -150,6 +152,7 @@ static const struct ipr_chip_cfg_t ipr_chip_cfg[] = { }, { /* CRoC */ .mailbox = 0x00044, + .max_cmds = 1000, .cache_line_size = 0x20, .clear_isr = 0, { @@ -8278,6 +8281,10 @@ static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 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 @@ static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 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 @@ static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, 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 @@ static int __devinit ipr_probe_ioa(struct pci_dev *pdev, 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; |