RDMA/cxgb4: Clean up connection on ARP error

Based on origninal work by Steve Wise <swise@opengridcomputing.com>

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index cc36e9bf9dea301341a9e49f4623ef44200555e8..6a93280250d16b62a96f1603c02d5f013eb4fbdd 100644 (file)
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -432,8 +432,17 @@ static void arp_failure_discard(void *handle, struct sk_buff *skb)
  */
 static void act_open_req_arp_failure(void *handle, struct sk_buff *skb)
 {
+       struct c4iw_ep *ep = handle;
+
        printk(KERN_ERR MOD "ARP failure duing connect\n");
        kfree_skb(skb);
+       connect_reply_upcall(ep, -EHOSTUNREACH);
+       state_set(&ep->com, DEAD);
+       remove_handle(ep->com.dev, &ep->com.dev->atid_idr, ep->atid);
+       cxgb4_free_atid(ep->com.dev->rdev.lldi.tids, ep->atid);
+       dst_release(ep->dst);
+       cxgb4_l2t_release(ep->l2t);
+       c4iw_put_ep(&ep->com);
 }
 
 /*
@@ -658,7 +667,7 @@ static int send_connect(struct c4iw_ep *ep)
                opt2 |= T5_OPT_2_VALID;
                opt2 |= V_CONG_CNTRL(CONG_ALG_TAHOE);
        }
-       t4_set_arp_err_handler(skb, NULL, act_open_req_arp_failure);
+       t4_set_arp_err_handler(skb, ep, act_open_req_arp_failure);
 
        if (is_t4(ep->com.dev->rdev.lldi.adapter_type)) {
                if (ep->com.remote_addr.ss_family == AF_INET) {