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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: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Steve Wise 2010-09-10 11:15:09 -05:00 committed by Roland Dreier
parent 6ff0e343b3
commit 0e42c1f430
3 changed files with 16 additions and 14 deletions
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25
drivers/infiniband/hw/cxgb4/cm.c
View File

@ -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;
}

2
drivers/infiniband/hw/cxgb4/ev.c
View File

@ -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;

3
drivers/infiniband/hw/cxgb4/qp.c
View File

@ -1238,7 +1238,8 @@ 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);
terminate = 1;
if (!internal)
terminate = 1;
disconnect = 1;
break;
case C4IW_QP_STATE_ERROR: