On 9/29/22 04:55, Nikos Tsironis wrote:
Increase the maximum request size for tcm_loop, by setting sg_tablesize
to SG_MAX_SEGMENTS.
The current value of 256 for sg_tablesize limits the request size to
PAGE_SIZE * 256, which for 4K pages is 1MiB.
Signed-off-by: Nikos Tsironis <ntsironis@xxxxxxxxxxx>
---
drivers/target/loopback/tcm_loop.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 4407b56aa6d1..6d7c3ebd8613 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -308,7 +308,7 @@ static struct scsi_host_template tcm_loop_driver_template = {
.eh_device_reset_handler = tcm_loop_device_reset,
.eh_target_reset_handler = tcm_loop_target_reset,
.this_id = -1,
- .sg_tablesize = 256,
+ .sg_tablesize = SG_MAX_SEGMENTS,
.max_sectors = 0xFFFF,
.dma_boundary = PAGE_SIZE - 1,
.module = THIS_MODULE,
There is more that can be improved for this driver, namely removal of
the dma_boundary parameter and increasing max_sectors.
Thanks,
Bart.
