From 13fecb83b410b147343e6c7b0427d244ef77b526 Mon Sep 17 00:00:00 2001 From: Steve Wise Date: Fri, 10 Sep 2010 11:14:53 -0500 Subject: [PATCH] RDMA/cxgb4: Zero out ISGL padding The HW design requires zeroing any pad in SGLs. Signed-off-by: Steve Wise Signed-off-by: Roland Dreier --- drivers/infiniband/hw/cxgb4/qp.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c index 4f5dd66da39..bdbf54d517d 100644 --- a/drivers/infiniband/hw/cxgb4/qp.c +++ b/drivers/infiniband/hw/cxgb4/qp.c @@ -263,6 +263,9 @@ static int build_immd(struct t4_sq *sq, struct fw_ri_immd *immdp, rem -= len; } } + len = roundup(plen + sizeof *immdp, 16) - (plen + sizeof *immdp); + if (len) + memset(dstp, 0, len); immdp->op = FW_RI_DATA_IMMD; immdp->r1 = 0; immdp->r2 = 0; @@ -292,6 +295,7 @@ static int build_isgl(__be64 *queue_start, __be64 *queue_end, if (++flitp == queue_end) flitp = queue_start; } + *flitp = (__force __be64)0; isglp->op = FW_RI_DATA_ISGL; isglp->r1 = 0; isglp->nsge = cpu_to_be16(num_sge);