The driver needs to always supply the "GRH present" flag to the hypervisor,
whether it's true or false. Not supplying it (i.e. not setting the
corresponding mask bit) amounts to a "perhaps", which we don't want.
Signed-off-by: Joachim Fenkes <[email protected]>
---
drivers/infiniband/hw/ehca/ehca_qp.c | 12 ++++++++----
1 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/infiniband/hw/ehca/ehca_qp.c b/drivers/infiniband/hw/ehca/ehca_qp.c
index df0516f..e21d796 100644
--- a/drivers/infiniband/hw/ehca/ehca_qp.c
+++ b/drivers/infiniband/hw/ehca/ehca_qp.c
@@ -968,17 +968,21 @@ static int internal_modify_qp(struct ib_
((ehca_mult - 1) / ah_mult) : 0;
else
mqpcb->max_static_rate = 0;
-
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_MAX_STATIC_RATE, 1);
/*
+ * Always supply the GRH flag, even if it's zero, to give the
+ * hypervisor a clear "yes" or "no" instead of a "perhaps"
+ */
+ update_mask |= EHCA_BMASK_SET(MQPCB_MASK_SEND_GRH_FLAG, 1);
+
+ /*
* only if GRH is TRUE we might consider SOURCE_GID_IDX
* and DEST_GID otherwise phype will return H_ATTR_PARM!!!
*/
if (attr->ah_attr.ah_flags == IB_AH_GRH) {
- mqpcb->send_grh_flag = 1 << 31;
- update_mask |=
- EHCA_BMASK_SET(MQPCB_MASK_SEND_GRH_FLAG, 1);
+ mqpcb->send_grh_flag = 1;
+
mqpcb->source_gid_idx = attr->ah_attr.grh.sgid_index;
update_mask |=
EHCA_BMASK_SET(MQPCB_MASK_SOURCE_GID_IDX, 1);
--
1.4.2.1
-
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