From: Vladimir Sokolovsky <vlad@mellanox.co.il>
Date: Tue, 4 Dec 2007 13:49:25 +0000 (+0200)
Subject: Applied 'kernel_patches/fixes/sdp_post_credits.patch'
X-Git-Tag: v4.1.12-92~264^2~5^2~330
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=aae84e649b6ee64cacd6250df4439e2d2ad35a28;p=users%2Fjedix%2Flinux-maple.git

Applied 'kernel_patches/fixes/sdp_post_credits.patch'

Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.co.il>
---

diff --git a/drivers/infiniband/ulp/sdp/sdp.h b/drivers/infiniband/ulp/sdp/sdp.h
index c1cc57993f03d..31966eb505551 100644
--- a/drivers/infiniband/ulp/sdp/sdp.h
+++ b/drivers/infiniband/ulp/sdp/sdp.h
@@ -248,6 +248,7 @@ void sdp_reset_sk(struct sock *sk, int rc);
 void sdp_time_wait_destroy_sk(struct sdp_sock *ssk);
 void sdp_completion_handler(struct ib_cq *cq, void *cq_context);
 void sdp_work(struct work_struct *work);
+int sdp_post_credits(struct sdp_sock *ssk);
 void sdp_post_send(struct sdp_sock *ssk, struct sk_buff *skb, u8 mid);
 void sdp_post_recvs(struct sdp_sock *ssk);
 int sdp_poll_cq(struct sdp_sock *ssk, struct ib_cq *cq);
diff --git a/drivers/infiniband/ulp/sdp/sdp_bcopy.c b/drivers/infiniband/ulp/sdp/sdp_bcopy.c
index bcc2ac8f9487b..5bc20fad5e738 100644
--- a/drivers/infiniband/ulp/sdp/sdp_bcopy.c
+++ b/drivers/infiniband/ulp/sdp/sdp_bcopy.c
@@ -443,6 +443,21 @@ static inline int sdp_nagle_off(struct sdp_sock *ssk, struct sk_buff *skb)
 		(TCP_SKB_CB(skb)->flags & TCPCB_FLAG_PSH);
 }
 
+int sdp_post_credits(struct sdp_sock *ssk)
+{
+	if (likely(ssk->bufs > 1) &&
+	    likely(ssk->tx_head - ssk->tx_tail < SDP_TX_SIZE)) {
+		struct sk_buff *skb;
+		skb = sk_stream_alloc_skb(&ssk->isk.sk,
+					  sizeof(struct sdp_bsdh),
+					  GFP_KERNEL);
+		if (!skb)
+			return -ENOMEM;
+		sdp_post_send(ssk, skb, SDP_MID_DATA);
+	}
+	return 0;
+}
+
 void sdp_post_sends(struct sdp_sock *ssk, int nonagle)
 {
 	/* TODO: nonagle? */
diff --git a/drivers/infiniband/ulp/sdp/sdp_cma.c b/drivers/infiniband/ulp/sdp/sdp_cma.c
index 3b0508ab744e4..0cab38bb9fbaa 100644
--- a/drivers/infiniband/ulp/sdp/sdp_cma.c
+++ b/drivers/infiniband/ulp/sdp/sdp_cma.c
@@ -472,6 +472,9 @@ int sdp_cma_handler(struct rdma_cm_id *id, struct rdma_cm_event *event)
 			rdma_reject(id, NULL, 0);
 		else
 			rc = rdma_accept(id, NULL);
+
+		if (!rc)
+			rc = sdp_post_credits(sdp_sk(sk));
 		break;
 	case RDMA_CM_EVENT_CONNECT_ERROR:
 		sdp_dbg(sk, "RDMA_CM_EVENT_CONNECT_ERROR\n");