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RDMA/nes: Fix FIN state handling under error conditions

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During cluster testing, one QP was not closed, as FIN is not handled
properly when its rexmit count expires or in some cases when RST is is
received after sending FIN.  The reason is that the cm_id does not get
decremented under these conditions.

Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Faisal Latif 2009-06-22 22:53:28 -07:00 committed by Roland Dreier
parent 66388d67a0
commit 68237a0ff8
1 changed files with 5 additions and 3 deletions
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8
drivers/infiniband/hw/nes/nes_cm.c
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@ -472,6 +472,7 @@ int schedule_nes_timer(struct nes_cm_node *cm_node, struct sk_buff *skb,
static void nes_retrans_expired(struct nes_cm_node *cm_node)
{
struct iw_cm_id *cm_id = cm_node->cm_id;
switch (cm_node->state) {
case NES_CM_STATE_SYN_RCVD:
case NES_CM_STATE_CLOSING:
@ -479,7 +480,9 @@ static void nes_retrans_expired(struct nes_cm_node *cm_node)
break;
case NES_CM_STATE_LAST_ACK:
case NES_CM_STATE_FIN_WAIT1:
case NES_CM_STATE_MPAREJ_RCVD:
if (cm_node->cm_id)
cm_id->rem_ref(cm_id);
cm_node->state = NES_CM_STATE_CLOSED;
send_reset(cm_node, NULL);
break;
default:
@ -1406,6 +1409,7 @@ static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
case NES_CM_STATE_CLOSED:
drop_packet(skb);
break;
case NES_CM_STATE_FIN_WAIT1:
case NES_CM_STATE_LAST_ACK:
cm_node->cm_id->rem_ref(cm_node->cm_id);
case NES_CM_STATE_TIME_WAIT:
@ -1413,8 +1417,6 @@ static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
rem_ref_cm_node(cm_node->cm_core, cm_node);
drop_packet(skb);
break;
case NES_CM_STATE_FIN_WAIT1:
nes_debug(NES_DBG_CM, "Bad state %s[%u]\n", __func__, __LINE__);
default:
drop_packet(skb);
break;