Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 387b978c authored by Bryant G. Ly's avatar Bryant G. Ly Committed by Bart Van Assche
Browse files

ibmvscsis: Fix max transfer length 



Current code incorrectly calculates the max transfer length, since
it is assuming a 4k page table, but ppc64 all run on 64k page tables.

Cc: stable@vger.kernel.org
Reported-by: default avatarSteven Royer <seroyer@linux.vnet.ibm.com>
Tested-by: default avatarSteven Royer <seroyer@linux.vnet.ibm.com>
Signed-off-by: default avatarBryant G. Ly <bryantly@linux.vnet.ibm.com>
Signed-off-by: default avatarBart Van Assche <bart.vanassche@sandisk.com>
parent 49def185

drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c

+2 −1
Original line number Diff line number Diff line
@@ -46,6 +46,7 @@ 


#define	INITIAL_SRP_LIMIT	800

#define	DEFAULT_MAX_SECTORS	256

#define MAX_TXU			1024 * 1024



static uint max_vdma_size = MAX_H_COPY_RDMA;
@@ -1443,7 +1444,7 @@ static long ibmvscsis_adapter_info(struct scsi_info *vscsi, 
	info->mad_version = cpu_to_be32(MAD_VERSION_1);

	info->os_type = cpu_to_be32(LINUX);

	memset(&info->port_max_txu[0], 0, sizeof(info->port_max_txu));

	info->port_max_txu[0] = cpu_to_be32(128 * PAGE_SIZE);

	info->port_max_txu[0] = cpu_to_be32(MAX_TXU);



	dma_wmb();

	rc = h_copy_rdma(sizeof(*info), vscsi->dds.window[LOCAL].liobn,