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| author | Bryant G. Ly <bryantly@linux.vnet.ibm.com> | 2017-01-11 13:52:27 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-26 08:24:40 +0100 |
| commit | a14aeccb65e5dacdd8b47eafc2778b1bfce8978b (patch) | |
| tree | 168dd6005bab8efd001c9035d2412ef176057ab8 /drivers/scsi | |
| parent | 51cff2c64d20ba65af768b4d922b98cb7baf947e (diff) | |
| download | linux-stable-a14aeccb65e5dacdd8b47eafc2778b1bfce8978b.tar.gz linux-stable-a14aeccb65e5dacdd8b47eafc2778b1bfce8978b.tar.bz2 linux-stable-a14aeccb65e5dacdd8b47eafc2778b1bfce8978b.zip | |
ibmvscsis: Fix max transfer length
commit 387b978cb0d12cf3720ecb17e652e0a9991a08e2 upstream.
Current code incorrectly calculates the max transfer length, since
it is assuming a 4k page table, but ppc64 all run on 64k page tables.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/scsi')
| -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 c5dd3e0b67eb..e3b911c895b4 100644 --- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c +++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c @@ -45,6 +45,7 @@ #define INITIAL_SRP_LIMIT 800 #define DEFAULT_MAX_SECTORS 256 +#define MAX_TXU 1024 * 1024 static uint max_vdma_size = MAX_H_COPY_RDMA; @@ -1291,7 +1292,7 @@ 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, |