diff options
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/ioat/dma.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c index 55a8cf181816..8ad0ad861c86 100644 --- a/drivers/dma/ioat/dma.c +++ b/drivers/dma/ioat/dma.c @@ -955,6 +955,15 @@ void ioat_timer_event(struct timer_list *t) goto unlock_out; } + /* handle missed issue pending case */ + if (ioat_ring_pending(ioat_chan)) { + dev_warn(to_dev(ioat_chan), + "Completion timeout with pending descriptors\n"); + spin_lock_bh(&ioat_chan->prep_lock); + __ioat_issue_pending(ioat_chan); + spin_unlock_bh(&ioat_chan->prep_lock); + } + set_bit(IOAT_COMPLETION_ACK, &ioat_chan->state); mod_timer(&ioat_chan->timer, jiffies + COMPLETION_TIMEOUT); unlock_out: |