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Commit b48f3b9c authored Mar 11, 2011 by Steve Wise Committed by Roland Dreier Mar 14, 2011

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>

parent a9c77198

drivers/infiniband/hw/cxgb4/cm.c

+2 −0

Original line number	Original line	Diff line number	Diff line
	@@ -482,6 +482,7 @@ static int send_connect(struct c4iw_ep *ep)
	TX_CHAN(ep->tx_chan) \|		TX_CHAN(ep->tx_chan) \|
	SMAC_SEL(ep->smac_idx) \|		SMAC_SEL(ep->smac_idx) \|
	DSCP(ep->tos) \|		DSCP(ep->tos) \|
			ULP_MODE(ULP_MODE_TCPDDP) \|
	RCV_BUFSIZ(rcv_win>>10);		RCV_BUFSIZ(rcv_win>>10);
	opt2 = RX_CHANNEL(0) \|		opt2 = RX_CHANNEL(0) \|
	RSS_QUEUE_VALID \| RSS_QUEUE(ep->rss_qid);		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) \|		TX_CHAN(ep->tx_chan) \|
	SMAC_SEL(ep->smac_idx) \|		SMAC_SEL(ep->smac_idx) \|
	DSCP(ep->tos) \|		DSCP(ep->tos) \|
			ULP_MODE(ULP_MODE_TCPDDP) \|
	RCV_BUFSIZ(rcv_win>>10);		RCV_BUFSIZ(rcv_win>>10);
	opt2 = RX_CHANNEL(0) \|		opt2 = RX_CHANNEL(0) \|
	RSS_QUEUE_VALID \| RSS_QUEUE(ep->rss_qid);		RSS_QUEUE_VALID \| RSS_QUEUE(ep->rss_qid);

drivers/net/cxgb4/t4_msg.h

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -123,6 +123,7 @@ enum {
	ULP_MODE_NONE = 0,		ULP_MODE_NONE = 0,
	ULP_MODE_ISCSI = 2,		ULP_MODE_ISCSI = 2,
	ULP_MODE_RDMA = 4,		ULP_MODE_RDMA = 4,
			ULP_MODE_TCPDDP = 5,
	ULP_MODE_FCOE = 6,		ULP_MODE_FCOE = 6,
	};		};