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Subject[PATCH] IB/ehca: Fix CQE flags reporting
Date
Was reporting CQE flags in the wrong bit positions, causing consumers to
miss incoming immediate data.

Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
---

Please review and queue for 2.6.32 if you think it's okay. Thanks!
Joachim

drivers/infiniband/hw/ehca/ehca_reqs.c | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/drivers/infiniband/hw/ehca/ehca_reqs.c b/drivers/infiniband/hw/ehca/ehca_reqs.c
index 5a3d96f..8fd88cd 100644
--- a/drivers/infiniband/hw/ehca/ehca_reqs.c
+++ b/drivers/infiniband/hw/ehca/ehca_reqs.c
@@ -786,7 +786,11 @@ repoll:
wc->slid = cqe->rlid;
wc->dlid_path_bits = cqe->dlid;
wc->src_qp = cqe->remote_qp_number;
- wc->wc_flags = cqe->w_completion_flags;
+ /*
+ * HW has "Immed data present" and "GRH present" in bits 6 and 5.
+ * SW defines those in bits 1 and 0, so we can just shift and mask.
+ */
+ wc->wc_flags = (cqe->w_completion_flags >> 5) & 3;
wc->ex.imm_data = cpu_to_be32(cqe->immediate_data);
wc->sl = cqe->service_level;

--
1.6.0.4





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