diff options
Diffstat (limited to 'drivers/infiniband/hw/hfi1/pio.c')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/pio.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/hfi1/pio.c b/drivers/infiniband/hw/hfi1/pio.c index 16ba9d52e1b9..4e5c2d1b8cfa 100644 --- a/drivers/infiniband/hw/hfi1/pio.c +++ b/drivers/infiniband/hw/hfi1/pio.c @@ -952,6 +952,22 @@ void sc_disable(struct send_context *sc) } } spin_unlock(&sc->release_lock); + + write_seqlock(&sc->waitlock); + while (!list_empty(&sc->piowait)) { + struct iowait *wait; + struct rvt_qp *qp; + struct hfi1_qp_priv *priv; + + wait = list_first_entry(&sc->piowait, struct iowait, list); + qp = iowait_to_qp(wait); + priv = qp->priv; + list_del_init(&priv->s_iowait.list); + priv->s_iowait.lock = NULL; + hfi1_qp_wakeup(qp, RVT_S_WAIT_PIO | HFI1_S_WAIT_PIO_DRAIN); + } + write_sequnlock(&sc->waitlock); + spin_unlock_irq(&sc->alloc_lock); } @@ -1427,7 +1443,8 @@ void sc_stop(struct send_context *sc, int flag) * @cb: optional callback to call when the buffer is finished sending * @arg: argument for cb * - * Return a pointer to a PIO buffer if successful, NULL if not enough room. + * Return a pointer to a PIO buffer, NULL if not enough room, -ECOMM + * when link is down. */ struct pio_buf *sc_buffer_alloc(struct send_context *sc, u32 dw_len, pio_release_cb cb, void *arg) @@ -1443,7 +1460,7 @@ struct pio_buf *sc_buffer_alloc(struct send_context *sc, u32 dw_len, spin_lock_irqsave(&sc->alloc_lock, flags); if (!(sc->flags & SCF_ENABLED)) { spin_unlock_irqrestore(&sc->alloc_lock, flags); - goto done; + return ERR_PTR(-ECOMM); } retry: |