From 183ecfa3091cd4cdda329a7fe89d9544088f517d Mon Sep 17 00:00:00 2001 From: Faisal Latif Date: Fri, 21 Nov 2008 20:50:46 -0600 Subject: RDMA/nes: Avoid race between MPA request and reset event to rdma_cm In passive open, after indicating MPA request to rdma_cm, an incoming RST would fire a reset event to rdma_cm causing it to crash, since the current state is not connected. The solution is to wait for nes_accept() or nes_reject() before firing the reset event. If nes_accept() or nes_reject() is already done, then the reset event will be fired when RST is processed. Signed-off-by: Faisal Latif Signed-off-by: Chien Tung Signed-off-by: Roland Dreier --- drivers/infiniband/hw/nes/nes_cm.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/infiniband/hw/nes/nes_cm.h') diff --git a/drivers/infiniband/hw/nes/nes_cm.h b/drivers/infiniband/hw/nes/nes_cm.h index 282a9cbe508f..25e2493abc6a 100644 --- a/drivers/infiniband/hw/nes/nes_cm.h +++ b/drivers/infiniband/hw/nes/nes_cm.h @@ -76,6 +76,10 @@ enum nes_timer_type { NES_TIMER_TYPE_CLOSE, }; +#define NES_PASSIVE_STATE_INDICATED 0 +#define NES_DO_NOT_SEND_RESET_EVENT 1 +#define NES_SEND_RESET_EVENT 2 + #define MAX_NES_IFS 4 #define SET_ACK 1 @@ -295,6 +299,7 @@ struct nes_cm_node { struct list_head timer_entry; struct list_head reset_entry; struct nes_qp *nesqp; + atomic_t passive_state; }; /* structure for client or CM to fill when making CM api calls. */ -- cgit v1.2.3-59-g8ed1b