[openib-general] [PATCH updated] libmthca: memfree completion with error

[Michael S. Tsirkin]

Same thing for userspace.

---

Fix up completion with error for memfree.

Signed-off-by: Michael S. Tsirkin <mst at mellanox.co.il>

Index: openib/src/userspace/libmthca/src/cq.c
===================================================================
--- openib/src/userspace/libmthca/src/cq.c	(revision 7890)
+++ openib/src/userspace/libmthca/src/cq.c	(working copy)
@@ -347,8 +347,17 @@
 		wc->wr_id = srq->wrid[wqe_index];
 		mthca_free_srq_wqe(srq, wqe_index);
 	} else {
+		int32_t wqe;
 		wq = &(*cur_qp)->rq;
-		wqe_index = ntohl(cqe->wqe) >> wq->wqe_shift;
+		wqe = ntohl(cqe->wqe);
+		wqe_index = wqe >> wq->wqe_shift;
+		/*
+		 * WQE addr == base - 1 might be reported in receive completion
+		 * with error instead of (rq size - 1) by Sinai FW 1.0.800,
+		 * Arbel FW 5.1.400 and should be fixed in later revisions.
+		 */
+		if (wqe_index < 0)
+			wqe_index = wq->max - 1;
 		wc->wr_id = (*cur_qp)->wrid[wqe_index];
 	}
 

-- 
MST