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>

3 files changed, 16 insertions, 14 deletions

diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index 2c60266bb6c3..2f0a26cf8e09 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -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;
 }
 
diff --git a/drivers/infiniband/hw/cxgb4/ev.c b/drivers/infiniband/hw/cxgb4/ev.c
index 491e76a0327f..c13041a0aeba 100644
--- a/drivers/infiniband/hw/cxgb4/ev.c
+++ b/drivers/infiniband/hw/cxgb4/ev.c
@@ -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;
diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c
index bdbf54d517d9..1199d1b9baf6 100644
--- a/drivers/infiniband/hw/cxgb4/qp.c
+++ b/drivers/infiniband/hw/cxgb4/qp.c
@@ -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: