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RDMA/cxgb4: Zero out ISGL padding 

The HW design requires zeroing any pad in SGLs.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Steve Wise 2010-09-10 11:14:53 -05:00 committed by Roland Dreier
parent af93fb5dcc
commit 13fecb83b4
1 changed files with 4 additions and 0 deletions
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4
drivers/infiniband/hw/cxgb4/qp.c
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@ -263,6 +263,9 @@ static int build_immd(struct t4_sq *sq, struct fw_ri_immd *immdp,
rem -= len; rem -= len;
} }
} }
len = roundup(plen + sizeof *immdp, 16) - (plen + sizeof *immdp);
if (len)
memset(dstp, 0, len);
immdp->op = FW_RI_DATA_IMMD; immdp->op = FW_RI_DATA_IMMD;
immdp->r1 = 0; immdp->r1 = 0;
immdp->r2 = 0; immdp->r2 = 0;
@ -292,6 +295,7 @@ static int build_isgl(__be64 *queue_start, __be64 *queue_end,
if (++flitp == queue_end) if (++flitp == queue_end)
flitp = queue_start; flitp = queue_start;
} }
*flitp = (__force __be64)0;
isglp->op = FW_RI_DATA_ISGL; isglp->op = FW_RI_DATA_ISGL;
isglp->r1 = 0; isglp->r1 = 0;
isglp->nsge = cpu_to_be16(num_sge); isglp->nsge = cpu_to_be16(num_sge);