linux-kernel - [PATCH 06/13] IB/ehca: Set SEND_GRH flag for all non-LL UD QPs on eHCA2

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Message-Id: <200707091527.14272.fenkes@de.ibm.com>
Date:	Mon, 9 Jul 2007 15:27:13 +0200
From:	Joachim Fenkes <fenkes@...ibm.com>
To:	"LinuxPPC-Dev" <linuxppc-dev@...abs.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"OF-General" <general@...ts.openfabrics.org>,
	Roland Dreier <rolandd@...co.com>
Cc:	"Hoang-Nam Nguyen" <hnguyen@...ibm.com>,
	Christoph Raisch <raisch@...ibm.com>,
	Stefan Roscher <stefan.roscher@...ibm.com>
Subject: [PATCH 06/13] IB/ehca: Set SEND_GRH flag for all non-LL UD QPs on eHCA2

From: Stefan Roscher <stefan.roscher@...ibm.com>

Signed-off-by: Joachim Fenkes <fenkes@...ibm.com>
---
 drivers/infiniband/hw/ehca/ehca_qp.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/drivers/infiniband/hw/ehca/ehca_qp.c b/drivers/infiniband/hw/ehca/ehca_qp.c
index ffd1ce9..cbb8b5b 100644
--- a/drivers/infiniband/hw/ehca/ehca_qp.c
+++ b/drivers/infiniband/hw/ehca/ehca_qp.c
@@ -1054,6 +1054,17 @@ static int internal_modify_qp(struct ib_qp *ibqp,
 		 "ehca_qp=%p qp_num=%x <VALID STATE CHANGE> qp_state_xsit=%x",
 		 my_qp, ibqp->qp_num, statetrans);
 
+	/* eHCA2 rev2 and higher require the SEND_GRH_FLAG to be set
+	 * in non-LL UD QPs.
+	 */
+	if ((my_qp->qp_type == IB_QPT_UD) &&
+	    (my_qp->ext_type != EQPT_LLQP) &&
+	    (statetrans == IB_QPST_INIT2RTR) &&
+	    (shca->hw_level >= 0x22)){
+		update_mask |= EHCA_BMASK_SET(MQPCB_MASK_SEND_GRH_FLAG, 1);
+		mqpcb->send_grh_flag = 1;
+	}
+
 	/* sqe -> rts: set purge bit of bad wqe before actual trans */
 	if ((my_qp->qp_type == IB_QPT_UD ||
 	     my_qp->qp_type == IB_QPT_GSI ||
-- 
1.5.2


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