Increasing the per-request size maximum (max_sectors_kb) to 4096 KiB
runs into the per-device DMA scatter gather list limit (max_segments)
for users of the io vector system calls (e.g. readv and writev).
This change increases the max scatter gather list length to 1024 to
enable kernel to send 4MiB (1024 * 4KiB page size) requests.
Signed-off-by: Igor Pylypiv <ipylypiv@xxxxxxxxxx>
---
drivers/scsi/pm8001/pm8001_defs.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/scsi/pm8001/pm8001_defs.h b/drivers/scsi/pm8001/pm8001_defs.h
index 501b574239e8..f6e6fe3f4cd6 100644
--- a/drivers/scsi/pm8001/pm8001_defs.h
+++ b/drivers/scsi/pm8001/pm8001_defs.h
@@ -92,8 +92,7 @@ enum port_type {
#define PM8001_MAX_MSIX_VEC 64 /* max msi-x int for spcv/ve */
#define PM8001_RESERVE_SLOT 8
-#define CONFIG_SCSI_PM8001_MAX_DMA_SG 528
-#define PM8001_MAX_DMA_SG CONFIG_SCSI_PM8001_MAX_DMA_SG
+#define PM8001_MAX_DMA_SG 1024
enum memory_region_num {
AAP1 = 0x0, /* application acceleration processor */
--
2.47.0.105.g07ac214952-goog
