scsi: pm80xx: Increase the number of outstanding I/O supported to 1024
The pm80xx driver currently sets the controller queue depth to
256. Hoewver, the controller supports outstanding I/Os up 1024.
Increase the number of outstanding I/Os from 256 to 1024. CCBs and tags
are allocated according to outstanding I/Os. Also update the can_queue
value (max_out_io - PM8001_RESERVE_SLOT) used by the SCSI midlayer.
[mkp: fixed zeroday complaint]
Link: https://lore.kernel.org/r/20201005145011.23674-4-Viswas.G@microchip.com.com
Reported-by: kernel test robot <lkp@intel.com>
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index e910657..2b7b295 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -4375,8 +4375,7 @@ static int pm8001_chip_ssp_io_req(struct pm8001_hba_info *pm8001_ha,
/* fill in PRD (scatter/gather) table, if any */
if (task->num_scatter > 1) {
pm8001_chip_make_sg(task->scatter, ccb->n_elem, ccb->buf_prd);
- phys_addr = ccb->ccb_dma_handle +
- offsetof(struct pm8001_ccb_info, buf_prd[0]);
+ phys_addr = ccb->ccb_dma_handle;
ssp_cmd.addr_low = cpu_to_le32(lower_32_bits(phys_addr));
ssp_cmd.addr_high = cpu_to_le32(upper_32_bits(phys_addr));
ssp_cmd.esgl = cpu_to_le32(1<<31);
@@ -4449,8 +4448,7 @@ static int pm8001_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
/* fill in PRD (scatter/gather) table, if any */
if (task->num_scatter > 1) {
pm8001_chip_make_sg(task->scatter, ccb->n_elem, ccb->buf_prd);
- phys_addr = ccb->ccb_dma_handle +
- offsetof(struct pm8001_ccb_info, buf_prd[0]);
+ phys_addr = ccb->ccb_dma_handle;
sata_cmd.addr_low = lower_32_bits(phys_addr);
sata_cmd.addr_high = upper_32_bits(phys_addr);
sata_cmd.esgl = cpu_to_le32(1 << 31);
