IB/ehca: Fix CQE flags reporting

The driver was reporting CQE flags in the wrong bit positions, causing consumers to miss incoming immediate data. Signed-off-by: Joachim Fenkes <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
redpig · Sep 6, 2009 · 6303e74 · 6303e74
1 parent d706834
commit 6303e74
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/drivers/infiniband/hw/ehca/ehca_reqs.c b/drivers/infiniband/hw/ehca/ehca_reqs.c
@@ -786,7 +786,11 @@ static inline int ehca_poll_cq_one(struct ib_cq *cq, struct ib_wc *wc)
 	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;