diff options
| author | Ralph Campbell <ralph.campbell@qlogic.com> | 2007-06-18 14:24:43 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2007-07-09 20:12:26 -0700 |
| commit | db5518cd09c21f0fa70af0a4ca38badd90622c9e (patch) | |
| tree | c8183dc863a03411bdb2f8737870ea3ed743d8c8 /drivers/infiniband/hw/ipath/ipath_verbs.c | |
| parent | 06ee109002672ac875558ec699b53cf08a865bd3 (diff) | |
| download | lwn-db5518cd09c21f0fa70af0a4ca38badd90622c9e.tar.gz lwn-db5518cd09c21f0fa70af0a4ca38badd90622c9e.zip | |
IB/ipath: Wait for PIO available interrupt
The send function is called when posting new send work requests.
There is no point in trying to send a packet if the QP is already
waiting for a HW send buffer so don't clear the busy bit until the
buffer available interrupt happens.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_verbs.c')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_verbs.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index 04294ca0a81f..cd79a8ca5104 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -948,6 +948,7 @@ int ipath_ib_piobufavail(struct ipath_ibdev *dev) qp = list_entry(dev->piowait.next, struct ipath_qp, piowait); list_del_init(&qp->piowait); + clear_bit(IPATH_S_BUSY, &qp->s_busy); tasklet_hi_schedule(&qp->s_task); } spin_unlock_irqrestore(&dev->pending_lock, flags); |