RDMA/cxgb4: Use ULP_MODE_TCPDDP

Set the ULP mode for initial RDMA connection setup to the proper DDP mode. This avoids wasting some HW resources while in streaming mode. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
git-mirror · Mar 14, 2011 · b48f3b9 · b48f3b9
1 parent a9c7719
commit b48f3b9
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diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
@@ -482,6 +482,7 @@ static int send_connect(struct c4iw_ep *ep)
 	       TX_CHAN(ep->tx_chan) |
 	       SMAC_SEL(ep->smac_idx) |
 	       DSCP(ep->tos) |
+	       ULP_MODE(ULP_MODE_TCPDDP) |
 	       RCV_BUFSIZ(rcv_win>>10);
 	opt2 = RX_CHANNEL(0) |
 	       RSS_QUEUE_VALID | RSS_QUEUE(ep->rss_qid);
@@ -1274,6 +1275,7 @@ static void accept_cr(struct c4iw_ep *ep, __be32 peer_ip, struct sk_buff *skb,
 	       TX_CHAN(ep->tx_chan) |
 	       SMAC_SEL(ep->smac_idx) |
 	       DSCP(ep->tos) |
+	       ULP_MODE(ULP_MODE_TCPDDP) |
 	       RCV_BUFSIZ(rcv_win>>10);
 	opt2 = RX_CHANNEL(0) |
 	       RSS_QUEUE_VALID | RSS_QUEUE(ep->rss_qid);

diff --git a/drivers/net/cxgb4/t4_msg.h b/drivers/net/cxgb4/t4_msg.h
@@ -123,6 +123,7 @@ enum {
 	ULP_MODE_NONE          = 0,
 	ULP_MODE_ISCSI         = 2,
 	ULP_MODE_RDMA          = 4,
+	ULP_MODE_TCPDDP	       = 5,
 	ULP_MODE_FCOE          = 6,
 };