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[for-next,17/17] RDMA/iw_cxgb4: Add arp failure handlers to send_mpa_reply/reject()

Message ID 1462553290-16422-18-git-send-email-hariprasad@chelsio.com (mailing list archive)
State Accepted
Headers show

Commit Message

Hariprasad S May 6, 2016, 4:48 p.m. UTC 
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>
---
 drivers/infiniband/hw/cxgb4/cm.c | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index 4f8afa2b8e21..c4b7f1f8f8a5 100644
--- 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;