[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.h b/drivers/scsi/ipr.h
index 40cbee7..a79de2a 100644
--- a/drivers/scsi/ipr.h
+++ b/drivers/scsi/ipr.h
@@ -53,7 +53,7 @@
* IPR_NUM_BASE_CMD_BLKS: This defines the maximum number of
* ops the mid-layer can send to the adapter.
*/
-#define IPR_NUM_BASE_CMD_BLKS 100
+#define IPR_NUM_BASE_CMD_BLKS (ioa_cfg->max_cmds)
#define PCI_DEVICE_ID_IBM_OBSIDIAN_E 0x0339
@@ -153,7 +153,7 @@
#define IPR_NUM_INTERNAL_CMD_BLKS (IPR_NUM_HCAMS + \
((IPR_NUM_RESET_RELOAD_RETRIES + 1) * 2) + 4)
-#define IPR_MAX_COMMANDS IPR_NUM_BASE_CMD_BLKS
+#define IPR_MAX_COMMANDS 100
#define IPR_NUM_CMD_BLKS (IPR_NUM_BASE_CMD_BLKS + \
IPR_NUM_INTERNAL_CMD_BLKS)
@@ -1305,6 +1305,7 @@
struct ipr_chip_cfg_t {
u32 mailbox;
+ u16 max_cmds;
u8 cache_line_size;
u8 clear_isr;
struct ipr_interrupt_offsets regs;
@@ -1503,8 +1504,9 @@
struct ata_host ata_host;
char ipr_cmd_label[8];
#define IPR_CMD_LABEL "ipr_cmd"
- struct ipr_cmnd *ipr_cmnd_list[IPR_NUM_CMD_BLKS];
- dma_addr_t ipr_cmnd_list_dma[IPR_NUM_CMD_BLKS];
+ u32 max_cmds;
+ struct ipr_cmnd **ipr_cmnd_list;
+ dma_addr_t *ipr_cmnd_list_dma;
}; /* struct ipr_ioa_cfg */
struct ipr_cmnd {