Commit cfe16d5d authored Feb 12, 2013 by Hiral Patel Committed by James Bottomley Feb 22, 2013

[SCSI] fnic: Fix SGEs limit

Driver allows IOs with more SGEs than max SGEs supported by Palo. The current
max SGEs supported by the fnic driver is 1024. The current register settings
on Palo supports a max of 256 only. Palo would return any IO with more than
256 SGEs with an error indicating INVALID_SGLS. Fnic driver should limit the
max supported SGLs in the driver to 256 to avoid this error.

Signed-off-by: Sesidhar Baddela <sebaddel@cisco.com>
Signed-off-by: Hiral Patel <hiralpat@cisco.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

parent 03298552

drivers/scsi/fnic/fnic_io.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -21,7 +21,7 @@
		#include <scsi/fc/fc_fcp.h>

		#define FNIC_DFLT_SG_DESC_CNT 32
		#define FNIC_MAX_SG_DESC_CNT 1024 /* Maximum descriptors per sgl */
		#define FNIC_MAX_SG_DESC_CNT 256 /* Maximum descriptors per sgl */
		#define FNIC_SG_DESC_ALIGN 16 /* Descriptor address alignment */

		struct host_sg_desc {