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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/ipath: Fix receiving UD messages with immediate data
Linus Torvalds 17 years ago
parent
commit
5db501d7e3
1 changed files with 22 additions and 22 deletions
  1. 22 22
      drivers/infiniband/hw/ipath/ipath_ud.c

+ 22 - 22
drivers/infiniband/hw/ipath/ipath_ud.c

@@ -455,6 +455,28 @@ void ipath_ud_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
 		}
 	}
 
+	/*
+	 * The opcode is in the low byte when its in network order
+	 * (top byte when in host order).
+	 */
+	opcode = be32_to_cpu(ohdr->bth[0]) >> 24;
+	if (qp->ibqp.qp_num > 1 &&
+	    opcode == IB_OPCODE_UD_SEND_ONLY_WITH_IMMEDIATE) {
+		if (header_in_data) {
+			wc.imm_data = *(__be32 *) data;
+			data += sizeof(__be32);
+		} else
+			wc.imm_data = ohdr->u.ud.imm_data;
+		wc.wc_flags = IB_WC_WITH_IMM;
+		hdrsize += sizeof(u32);
+	} else if (opcode == IB_OPCODE_UD_SEND_ONLY) {
+		wc.imm_data = 0;
+		wc.wc_flags = 0;
+	} else {
+		dev->n_pkt_drops++;
+		goto bail;
+	}
+
 	/* Get the number of bytes the message was padded by. */
 	pad = (be32_to_cpu(ohdr->bth[0]) >> 20) & 3;
 	if (unlikely(tlen < (hdrsize + pad + 4))) {
@@ -481,28 +503,6 @@ void ipath_ud_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
 	 */
 	wc.byte_len = tlen + sizeof(struct ib_grh);
 
-	/*
-	 * The opcode is in the low byte when its in network order
-	 * (top byte when in host order).
-	 */
-	opcode = be32_to_cpu(ohdr->bth[0]) >> 24;
-	if (qp->ibqp.qp_num > 1 &&
-	    opcode == IB_OPCODE_UD_SEND_ONLY_WITH_IMMEDIATE) {
-		if (header_in_data) {
-			wc.imm_data = *(__be32 *) data;
-			data += sizeof(__be32);
-		} else
-			wc.imm_data = ohdr->u.ud.imm_data;
-		wc.wc_flags = IB_WC_WITH_IMM;
-		hdrsize += sizeof(u32);
-	} else if (opcode == IB_OPCODE_UD_SEND_ONLY) {
-		wc.imm_data = 0;
-		wc.wc_flags = 0;
-	} else {
-		dev->n_pkt_drops++;
-		goto bail;
-	}
-
 	/*
 	 * Get the next work request entry to find where to put the data.
 	 */