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authorBryant G. Ly <bryantly@linux.vnet.ibm.com>2017-01-11 22:52:27 +0300
committerBart Van Assche <bart.vanassche@sandisk.com>2017-01-17 20:42:19 +0300
commit387b978cb0d12cf3720ecb17e652e0a9991a08e2 (patch)
tree99d31dab3f303b677b5214b39ceace96912d9848 /drivers/scsi/ibmvscsi_tgt
parent49def1853334396f948dcb4cedb9347abb318df5 (diff)
downloadlinux-387b978cb0d12cf3720ecb17e652e0a9991a08e2.tar.xz
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: Steven Royer <seroyer@linux.vnet.ibm.com> Tested-by: Steven Royer <seroyer@linux.vnet.ibm.com> Signed-off-by: Bryant G. Ly <bryantly@linux.vnet.ibm.com> Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Diffstat (limited to 'drivers/scsi/ibmvscsi_tgt')
-rw-r--r--drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
index 8fb5c54c7dd3..9c91e757c2ef 100644
--- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
+++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
@@ -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,