From: Steve Wise <swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
To: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH 2.6.37 02/11] RDMA/cxgb4: Zero out ISGL padding.
Date: Fri, 10 Sep 2010 11:14:53 -0500 [thread overview]
Message-ID: <20100910161453.6829.14456.stgit@build.ogc.int> (raw)
In-Reply-To: <20100910161442.6829.91594.stgit-T4OLL4TyM9aNDNWfRnPdfg@public.gmane.org>
The HW design requires zering any pad in SGLs.
Signed-off-by: Steve Wise <swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
---
drivers/infiniband/hw/cxgb4/qp.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c
index 05aa20b..c92259f 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);
--
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next prev parent reply other threads:[~2010-09-10 16:14 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-10 16:14 [PATCH 2.6.37 00/11] cxgb4 fixes / enhancements Steve Wise
[not found] ` <20100910161442.6829.91594.stgit-T4OLL4TyM9aNDNWfRnPdfg@public.gmane.org>
2010-09-10 16:14 ` [PATCH 2.6.37 01/11] RDMA/cxgb4: Don't use null ep ptr Steve Wise
2010-09-10 16:14 ` Steve Wise [this message]
2010-09-10 16:14 ` [PATCH 2.6.37 03/11] RDMA/cxgb4: Ignore positive return values from cxgb4_*_send() functions Steve Wise
2010-09-10 16:15 ` [PATCH 2.6.37 04/11] RDMA/cxgb4: Ignore TERMINATE CQEs Steve Wise
2010-09-10 16:15 ` [PATCH 2.6.37 05/11] RDMA/cxgb4: Handle CPL_RDMA_TERMINATE messages Steve Wise
2010-09-10 16:15 ` [PATCH 2.6.37 06/11] RDMA/cxgb4: log HW lack-of-resource errors Steve Wise
2010-09-10 16:15 ` [PATCH 2.6.37 07/11] RDMA/cxgb4: debugfs files for dumping active stags Steve Wise
2010-09-10 16:15 ` [PATCH 2.6.37 08/11] RDMA/cxgb4: Centralize the wait logic Steve Wise
2010-09-10 16:15 ` [PATCH 2.6.37 09/11] RDMA/cxgb4: Support on-chip SQs Steve Wise
[not found] ` <20100910161530.6829.89294.stgit-T4OLL4TyM9aNDNWfRnPdfg@public.gmane.org>
2010-09-10 19:57 ` Steve Wise
[not found] ` <4C8A8DC1.4040302-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
2010-09-13 16:13 ` Roland Dreier
[not found] ` <adaiq29wrjm.fsf-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
2010-09-13 16:25 ` Steve Wise
2010-09-10 16:15 ` [PATCH 2.6.37 10/11] RDMA/cxgb4: Use a mutex for QP and EP state transitions Steve Wise
2010-09-10 16:15 ` [PATCH 2.6.37 11/11] RDMA/cxgb4: Set the default TCP send window to 128KB Steve Wise
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