This is a note to let you know that I've just added the patch titled
ibmvscsis: Fix max transfer length
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ibmvscsis-fix-max-transfer-length.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 387b978cb0d12cf3720ecb17e652e0a9991a08e2 Mon Sep 17 00:00:00 2001
From: "Bryant G. Ly" <bryantly@xxxxxxxxxxxxxxxxxx>
Date: Wed, 11 Jan 2017 13:52:27 -0600
Subject: ibmvscsis: Fix max transfer length
From: Bryant G. Ly <bryantly@xxxxxxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxxxxxx>
Tested-by: Steven Royer <seroyer@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Bryant G. Ly <bryantly@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- 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(struc
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,
Patches currently in stable-queue which might be from bryantly@xxxxxxxxxxxxxxxxxx are
queue-4.9/ibmvscsis-fix-max-transfer-length.patch
queue-4.9/ibmvscsis-fix-sleeping-in-interrupt-context.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html