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Commit 0e42c1f4 authored by Steve Wise's avatar Steve Wise Committed by Roland Dreier
Browse files

RDMA/cxgb4: Handle CPL_RDMA_TERMINATE messages 



T4 FW sends up CPL_RDMA_TERMINATE to indicate a peer TERM.  This
triggers the QP moving to TERMINATE state.

Signed-off-by: default avatarSteve Wise <swise@opengridcomputing.com>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 6ff0e343

drivers/infiniband/hw/cxgb4/cm.c

+13 −12
Original line number Diff line number Diff line
@@ -1725,23 +1725,24 @@ static int close_con_rpl(struct c4iw_dev *dev, struct sk_buff *skb) 


static int terminate(struct c4iw_dev *dev, struct sk_buff *skb)

{

	struct c4iw_ep *ep;

	struct cpl_rdma_terminate *term = cplhdr(skb);

	struct cpl_rdma_terminate *rpl = cplhdr(skb);

	struct tid_info *t = dev->rdev.lldi.tids;

	unsigned int tid = GET_TID(term);

	unsigned int tid = GET_TID(rpl);

	struct c4iw_ep *ep;

	struct c4iw_qp_attributes attrs;



	ep = lookup_tid(t, tid);

	BUG_ON(!ep);



	if (state_read(&ep->com) != FPDU_MODE)

		return 0;

	if (ep->com.qp) {

		printk(KERN_WARNING MOD "TERM received tid %u qpid %u\n", tid,

		       ep->com.qp->wq.sq.qid);

		attrs.next_state = C4IW_QP_STATE_TERMINATE;

		c4iw_modify_qp(ep->com.qp->rhp, ep->com.qp,

			       C4IW_QP_ATTR_NEXT_STATE, &attrs, 1);

	} else

		printk(KERN_WARNING MOD "TERM received tid %u no qp\n", tid);



	PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid);

	skb_pull(skb, sizeof *term);

	PDBG("%s saving %d bytes of term msg\n", __func__, skb->len);

	skb_copy_from_linear_data(skb, ep->com.qp->attr.terminate_buffer,

				  skb->len);

	ep->com.qp->attr.terminate_msg_len = skb->len;

	ep->com.qp->attr.is_terminate_local = 0;

	return 0;

}

drivers/infiniband/hw/cxgb4/ev.c

+1 −1
Original line number Diff line number Diff line
@@ -60,7 +60,7 @@ static void post_qp_event(struct c4iw_dev *dev, struct c4iw_cq *chp, 
	if (qhp->attr.state == C4IW_QP_STATE_RTS) {

		attrs.next_state = C4IW_QP_STATE_TERMINATE;

		c4iw_modify_qp(qhp->rhp, qhp, C4IW_QP_ATTR_NEXT_STATE,

			       &attrs, 1);

			       &attrs, 0);

	}



	event.event = ib_event;

drivers/infiniband/hw/cxgb4/qp.c

+2 −1
Original line number Diff line number Diff line
@@ -1238,6 +1238,7 @@ int c4iw_modify_qp(struct c4iw_dev *rhp, struct c4iw_qp *qhp, 
				t4_set_wq_in_error(&qhp->wq);

			ep = qhp->ep;

			c4iw_get_ep(&ep->com);

			if (!internal)

				terminate = 1;

			disconnect = 1;

			break;