RDMA/iw_cxgb4: Add arp failure handlers to send_mpa_reply/reject()

These handlers when called print error message to the kernel log,
but the actual handling is done by _c4iw_free_ep() and process_timeout().

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index 4f8afa2b8e214acc698ed7bfcbd4a41770ce630d..c4b7f1f8f8a54161eaaeeec4075aa66bb680675c 100644 (file)
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -515,6 +515,11 @@ static void arp_failure_discard(void *handle, struct sk_buff *skb)
        kfree_skb(skb);
 }
 
+static void mpa_start_arp_failure(void *handle, struct sk_buff *skb)
+{
+       pr_err("ARP failure during MPA Negotiation - Closing Connection\n");
+}
+
 enum {
        NUM_FAKE_CPLS = 2,
        FAKE_CPL_PUT_EP_SAFE = NUM_CPL_CMDS + 0,
@@ -1118,6 +1123,7 @@ static int send_mpa_reject(struct c4iw_ep *ep, const void *pdata, u8 plen)
         */
        skb_get(skb);
        set_wr_txq(skb, CPL_PRIORITY_DATA, ep->txq_idx);
+       t4_set_arp_err_handler(skb, NULL, mpa_start_arp_failure);
        BUG_ON(ep->mpa_skb);
        ep->mpa_skb = skb;
        ep->snd_seq += mpalen;
@@ -1202,6 +1208,7 @@ static int send_mpa_reply(struct c4iw_ep *ep, const void *pdata, u8 plen)
         * Function fw4_ack() will deref it.
         */
        skb_get(skb);
+       t4_set_arp_err_handler(skb, NULL, mpa_start_arp_failure);
        ep->mpa_skb = skb;
        __state_set(&ep->com, MPA_REP_SENT);
        ep->snd_seq += mpalen;