RDMA/cxgb3: Handle EEH events

- wrap calls into cxgb3 and fail them if we're in the middle
  of a PCI EEH event.

- correctly unwind and release endpoint and other resources when
  we are in an EEH event.

- dispatch IB_EVENT_DEVICE_FATAL event when cxgb3 notifies iw_cxgb3 of
  a fatal error.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

drivers/infiniband/hw/cxgb3/iwch_qp.c

@@ -751,7 +751,7 @@ int iwch_post_zb_read(struct iwch_qp *qhp)
 	wqe->send.wrh.gen_tid_len = cpu_to_be32(V_FW_RIWR_TID(qhp->ep->hwtid)|
 						V_FW_RIWR_LEN(flit_cnt));
 	skb->priority = CPL_PRIORITY_DATA;
-	return cxgb3_ofld_send(qhp->rhp->rdev.t3cdev_p, skb);
+	return iwch_cxgb3_ofld_send(qhp->rhp->rdev.t3cdev_p, skb);
 }
 
 /*
@@ -783,7 +783,7 @@ int iwch_post_terminate(struct iwch_qp *qhp, struct respQ_msg_t *rsp_msg)
 			 V_FW_RIWR_FLAGS(T3_COMPLETION_FLAG | T3_NOTIFY_FLAG));
 	wqe->send.wrh.gen_tid_len = cpu_to_be32(V_FW_RIWR_TID(qhp->ep->hwtid));
 	skb->priority = CPL_PRIORITY_DATA;
-	return cxgb3_ofld_send(qhp->rhp->rdev.t3cdev_p, skb);
+	return iwch_cxgb3_ofld_send(qhp->rhp->rdev.t3cdev_p, skb);
 }
 
 /*