Patch "iw_cxgb4: set correct FetchBurstMax for QPs" has been added to the 4.9-stable tree

This is a note to let you know that I've just added the patch titled

iw_cxgb4: set correct FetchBurstMax for QPs

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:
iw_cxgb4-set-correct-fetchburstmax-for-qps.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 <[email protected]> know about it.

From: Steve Wise <[email protected]>
Date: Thu, 15 Dec 2016 08:09:35 -0800
Subject: iw_cxgb4: set correct FetchBurstMax for QPs

From: Steve Wise <[email protected]>

commit b414fa01c31318383ae29d9d23cb9ca4184bbd86 upstream.

The current QP FetchBurstMax value is 256B, which is incorrect since a WR can exceed that value. The result being a partial WR fetched by hardware, and a fatal "bad WR" error posted by the SGE.

So bump the FetchBurstMax to 512B.

---
 drivers/infiniband/hw/cxgb4/qp.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

@@ -321,7 +321,8 @@ static int create_qp(struct c4iw_rdev *r
 		FW_RI_RES_WR_DCAEN_V(0) |
 		FW_RI_RES_WR_DCACPU_V(0) |
 		FW_RI_RES_WR_FBMIN_V(2) |
-		FW_RI_RES_WR_FBMAX_V(2) |
+		(t4_sq_onchip(&wq->sq) ? FW_RI_RES_WR_FBMAX_V(2) :
+					 FW_RI_RES_WR_FBMAX_V(3)) |
 		FW_RI_RES_WR_CIDXFTHRESHO_V(0) |
 		FW_RI_RES_WR_CIDXFTHRESH_V(0) |
 		FW_RI_RES_WR_EQSIZE_V(eqsize));

@@ -345,7 +346,7 @@ static int create_qp(struct c4iw_rdev *r
 		FW_RI_RES_WR_DCAEN_V(0) |
 		FW_RI_RES_WR_DCACPU_V(0) |
 		FW_RI_RES_WR_FBMIN_V(2) |
-		FW_RI_RES_WR_FBMAX_V(2) |
+		FW_RI_RES_WR_FBMAX_V(3) |
 		FW_RI_RES_WR_CIDXFTHRESHO_V(0) |
 		FW_RI_RES_WR_CIDXFTHRESH_V(0) |
 		FW_RI_RES_WR_EQSIZE_V(eqsize));

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/iw_cxgb4-set-correct-fetchburstmax-for-qps.patch