linux-kernel - [PATCH 3/5] ib/ehca: repoll on invalid opcode

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Date:	Tue, 12 Aug 2008 14:49:41 +0200
From:	Alexander Schmidt <alexs@...ux.vnet.ibm.com>
To:	linuxppc-dev <linuxppc-dev@...abs.org>,
	lkml <linux-kernel@...r.kernel.org>,
	of-ewg <ewg@...ts.openfabrics.org>,
	of-general <general@...ts.openfabrics.org>,
	Roland Dreier <rolandd@...co.com>
Cc:	Christoph Raisch <raisch@...ibm.com>,
	Hoang-Nam Nguyen <HNGUYEN@...ibm.com>,
	Joachim Fenkes <fenkes@...ibm.com>,
	Stefan Roscher <stefan.roscher@...ibm.com>
Subject: [PATCH 3/5] ib/ehca: repoll on invalid opcode

When the ehca driver detects an invalid opcode in a CQE, it currently
passes the CQE to the application and returns with success. This patch
changes the CQE handling to discard CQEs with invalid opcodes and to
continue reading the next CQE from the CQ.

Signed-off-by: Alexander Schmidt <alexs@...ux.vnet.ibm.com>
---
 drivers/infiniband/hw/ehca/ehca_reqs.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- infiniband.git.orig/drivers/infiniband/hw/ehca/ehca_reqs.c
+++ infiniband.git/drivers/infiniband/hw/ehca/ehca_reqs.c
@@ -667,7 +667,7 @@ repoll:
 		ehca_dmp(cqe, 64, "ehca_cq=%p cq_num=%x",
 			 my_cq, my_cq->cq_number);
 		/* update also queue adder to throw away this entry!!!
*/
-		goto poll_cq_one_exit0;
+		goto repoll;
 	}
 
 	/* eval ib_wc_status */
--
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