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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>
This commit is contained in:
Hariprasad S 2016-05-06 22:18:02 +05:30 committed by Doug Ledford
parent 8a70f812b1
commit 761e19a504
1 changed files with 9 additions and 3 deletions
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12
drivers/infiniband/hw/cxgb4/cm.c
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@ -540,12 +540,18 @@ static void act_open_req_arp_failure(void *handle, struct sk_buff *skb)
*/
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 @@ static int send_abort(struct c4iw_ep *ep, struct sk_buff *skb, gfp_t gfp)
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);