diff options
| author | Steve Wise <swise@opengridcomputing.com> | 2009-09-06 07:22:38 +0400 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2009-09-06 07:22:38 +0400 |
| commit | a52bf98d99e922363d1d600a79de6aaf00090d47 (patch) | |
| tree | d18ba723a8a4ff79de68c96261ef32fc838e5bcb /drivers | |
| parent | 6e47fe43502ba6dfe86d556661795d9bb0361309 (diff) | |
| download | linux-a52bf98d99e922363d1d600a79de6aaf00090d47.tar.xz | |
RDMA/cxgb3: Wake up any waiters on peer close/abort
A close/abort while waiting for a wr_ack during connection migration
can cause a hung process in iwch_accept_cr/iwch_reject_cr.
The fix is to set rpl_error/rpl_done and wake up the waiters when we
get a close/abort while in MPA_REQ_RCVD state.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/hw/cxgb3/iwch_cm.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/cxgb3/iwch_cm.c b/drivers/infiniband/hw/cxgb3/iwch_cm.c index 7f22f1797718..66b41351910a 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_cm.c +++ b/drivers/infiniband/hw/cxgb3/iwch_cm.c @@ -1478,9 +1478,14 @@ static int peer_close(struct t3cdev *tdev, struct sk_buff *skb, void *ctx) /* * We're gonna mark this puppy DEAD, but keep * the reference on it until the ULP accepts or - * rejects the CR. + * rejects the CR. Also wake up anyone waiting + * in rdma connection migration (see iwch_accept_cr()). */ __state_set(&ep->com, CLOSING); + ep->com.rpl_done = 1; + ep->com.rpl_err = -ECONNRESET; + PDBG("waking up ep %p\n", ep); + wake_up(&ep->com.waitq); break; case MPA_REP_SENT: __state_set(&ep->com, CLOSING); @@ -1588,8 +1593,13 @@ static int peer_abort(struct t3cdev *tdev, struct sk_buff *skb, void *ctx) /* * We're gonna mark this puppy DEAD, but keep * the reference on it until the ULP accepts or - * rejects the CR. + * rejects the CR. Also wake up anyone waiting + * in rdma connection migration (see iwch_accept_cr()). */ + ep->com.rpl_done = 1; + ep->com.rpl_err = -ECONNRESET; + PDBG("waking up ep %p\n", ep); + wake_up(&ep->com.waitq); break; case MORIBUND: case CLOSING: @@ -1828,8 +1838,6 @@ int iwch_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) ep->com.cm_id = cm_id; ep->com.qp = qp; - ep->com.rpl_done = 0; - ep->com.rpl_err = 0; ep->ird = conn_param->ird; ep->ord = conn_param->ord; |