[PATCH] RDMA/nes: change state to closing after FIN

[PATCH] RDMA/nes: change state to closing after FIN

[Faisal Latif]

When driver receives an AE for FIN receive indication, it closes the connection
without changing the state of the connection in the hardware to closing. By
changing the state to closing, hardware will do normal close sequence.

Signed-off-by: Faisal Latif <faisal.latif-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
 drivers/infiniband/hw/nes/nes_hw.c |   14 ++++++++++++--
 1 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index 679dd01..a63934c 100644
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -3469,8 +3469,19 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev,
 		case NES_AEQE_AEID_LLP_FIN_RECEIVED:
 			if (nesqp->term_flags)
 				return; /* Ignore it, wait for close complete */
-
 			if (atomic_inc_return(&nesqp->close_timer_started) == 1) {
+				if ((tcp_state == NES_AEQE_TCP_STATE_CLOSE_WAIT) &&
+					(nesqp->ibqp_state == IB_QPS_RTS)) {
+					spin_lock_irqsave(&nesqp->lock, flags);
+					nesqp->hw_iwarp_state = iwarp_state;
+					nesqp->hw_tcp_state = tcp_state;
+					nesqp->last_aeq = async_event_id;
+					next_iwarp_state = NES_CQP_QP_IWARP_STATE_CLOSING;
+					nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_CLOSING;
+					spin_unlock_irqrestore(&nesqp->lock, flags);
+					nes_hw_modify_qp(nesdev, nesqp, next_iwarp_state, 0, 0);
+					nes_cm_disconn(nesqp);
+				}
 				nesqp->cm_id->add_ref(nesqp->cm_id);
 				schedule_nes_timer(nesqp->cm_node, (struct sk_buff *)nesqp,
 						NES_TIMER_TYPE_CLOSE, 1, 0);
@@ -3480,7 +3491,6 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev,
 						nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount),
 						async_event_id, nesqp->last_aeq, tcp_state);
 			}
-
 			break;
 		case NES_AEQE_AEID_LLP_CLOSE_COMPLETE:
 			if (nesqp->term_flags) {
-- 
1.6.0

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Re: [PATCH] RDMA/nes: change state to closing after FIN

[Roland Dreier]

thanks, applied.
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