RDMA/iw_cxgb4: Handle return value of c4iw_ofld_send() in abort_arp_failure()
In abort_arp_failure(), the return value from c4iw_ofld_send() is
ignored and thus if the CPL isn't sent, the endpoint is stuck and never
gets aborted. Failure of c4iw_ofld_send() is treated as fatal error, and
the ep resources are released in a safer context through process_work().
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 6c22bc9..6129dbd 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -540,12 +540,18 @@
*/
static void abort_arp_failure(void *handle, struct sk_buff *skb)
{
- struct c4iw_rdev *rdev = handle;
+ int ret;
+ struct c4iw_ep *ep = handle;
+ struct c4iw_rdev *rdev = &ep->com.dev->rdev;
struct cpl_abort_req *req = cplhdr(skb);
PDBG("%s rdev %p\n", __func__, rdev);
req->cmd = CPL_ABORT_NO_RST;
- c4iw_ofld_send(rdev, skb);
+ ret = c4iw_ofld_send(rdev, skb);
+ if (ret) {
+ __state_set(&ep->com, DEAD);
+ queue_arp_failure_cpl(ep, skb, FAKE_CPL_PUT_EP_SAFE);
+ }
}
static int send_flowc(struct c4iw_ep *ep, struct sk_buff *skb)
@@ -642,7 +648,7 @@
return -ENOMEM;
}
set_wr_txq(skb, CPL_PRIORITY_DATA, ep->txq_idx);
- t4_set_arp_err_handler(skb, &ep->com.dev->rdev, abort_arp_failure);
+ t4_set_arp_err_handler(skb, ep, abort_arp_failure);
req = (struct cpl_abort_req *) skb_put(skb, wrlen);
memset(req, 0, wrlen);
INIT_TP_WR(req, ep->hwtid);