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authorSteve Wise <swise@opengridcomputing.com>2011-03-11 22:30:21 +0000
committerRoland Dreier <roland@purestorage.com>2011-03-14 12:09:12 -0700
commitb48f3b9c10d731160f0af5c3028ad57d9c66673b (patch)
tree505fbe19fa360d0a18f08af3ccdb727e801fa115
parenta9c7719800ac513b2df14e267d062ec84dc9313e (diff)
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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>
-rw-r--r--drivers/infiniband/hw/cxgb4/cm.c2
-rw-r--r--drivers/net/cxgb4/t4_msg.h1
2 files changed, 3 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index 65d3fe6..b4d9e4c 100644
--- 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
index a550d0c..eb71b82 100644
--- 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,
};