diff options
| author | Bryant G. Ly <bryantly@linux.vnet.ibm.com> | 2017-01-11 13:52:27 -0600 |
|---|---|---|
| committer | Bart Van Assche <bart.vanassche@sandisk.com> | 2017-01-17 09:42:19 -0800 |
| commit | 387b978cb0d12cf3720ecb17e652e0a9991a08e2 (patch) | |
| tree | 99d31dab3f303b677b5214b39ceace96912d9848 /drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c | |
| parent | 49def1853334396f948dcb4cedb9347abb318df5 (diff) | |
| download | linux-387b978cb0d12cf3720ecb17e652e0a9991a08e2.tar.bz2 | |
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/ibmvscsi_tgt.c')
| -rw-r--r-- | drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c | 3 |
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, |