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authorJani Nikula <jani.nikula@intel.com>2019-01-08 09:50:22 +0100
committerJani Nikula <jani.nikula@intel.com>2019-01-08 09:50:22 +0100
commit3eb0930a425b086bdab38156aa4708427479a201 (patch)
treeea0bceef5bd1f62e4993f8f2f22a81f9da5f1f09 /drivers/infiniband/hw/hfi1/qp.c
parentMerge tag 'topic/drmp-cleanup-2019-01-02' of git://anongit.freedesktop.org/dr... (diff)
parentLinux 5.0-rc1 (diff)
downloadlinux-3eb0930a425b086bdab38156aa4708427479a201.tar.xz
linux-3eb0930a425b086bdab38156aa4708427479a201.zip
Merge drm/drm-next into drm-intel-next-queued
Generally catch up with 5.0-rc1, and specifically get the changes: 96d4f267e40f ("Remove 'type' argument from access_ok() function") 0b2c8f8b6b0c ("i915: fix missing user_access_end() in page fault exception case") 594cc251fdd0 ("make 'user_access_begin()' do 'access_ok()'") Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/qp.c')
-rw-r--r--drivers/infiniband/hw/hfi1/qp.c27
1 files changed, 15 insertions, 12 deletions
diff --git a/drivers/infiniband/hw/hfi1/qp.c b/drivers/infiniband/hw/hfi1/qp.c
index 6f3bc4dab858..5344e8993b28 100644
--- a/drivers/infiniband/hw/hfi1/qp.c
+++ b/drivers/infiniband/hw/hfi1/qp.c
@@ -340,6 +340,13 @@ int hfi1_setup_wqe(struct rvt_qp *qp, struct rvt_swqe *wqe, bool *call_send)
default:
break;
}
+
+ /*
+ * System latency between send and schedule is large enough that
+ * forcing call_send to true for piothreshold packets is necessary.
+ */
+ if (wqe->length <= piothreshold)
+ *call_send = true;
return 0;
}
@@ -368,20 +375,18 @@ bool _hfi1_schedule_send(struct rvt_qp *qp)
static void qp_pio_drain(struct rvt_qp *qp)
{
- struct hfi1_ibdev *dev;
struct hfi1_qp_priv *priv = qp->priv;
if (!priv->s_sendcontext)
return;
- dev = to_idev(qp->ibqp.device);
while (iowait_pio_pending(&priv->s_iowait)) {
- write_seqlock_irq(&dev->iowait_lock);
+ write_seqlock_irq(&priv->s_sendcontext->waitlock);
hfi1_sc_wantpiobuf_intr(priv->s_sendcontext, 1);
- write_sequnlock_irq(&dev->iowait_lock);
+ write_sequnlock_irq(&priv->s_sendcontext->waitlock);
iowait_pio_drain(&priv->s_iowait);
- write_seqlock_irq(&dev->iowait_lock);
+ write_seqlock_irq(&priv->s_sendcontext->waitlock);
hfi1_sc_wantpiobuf_intr(priv->s_sendcontext, 0);
- write_sequnlock_irq(&dev->iowait_lock);
+ write_sequnlock_irq(&priv->s_sendcontext->waitlock);
}
}
@@ -452,7 +457,6 @@ static int iowait_sleep(
struct hfi1_qp_priv *priv;
unsigned long flags;
int ret = 0;
- struct hfi1_ibdev *dev;
qp = tx->qp;
priv = qp->priv;
@@ -465,9 +469,8 @@ static int iowait_sleep(
* buffer and undoing the side effects of the copy.
*/
/* Make a common routine? */
- dev = &sde->dd->verbs_dev;
list_add_tail(&stx->list, &wait->tx_head);
- write_seqlock(&dev->iowait_lock);
+ write_seqlock(&sde->waitlock);
if (sdma_progress(sde, seq, stx))
goto eagain;
if (list_empty(&priv->s_iowait.list)) {
@@ -478,11 +481,11 @@ static int iowait_sleep(
qp->s_flags |= RVT_S_WAIT_DMA_DESC;
iowait_queue(pkts_sent, &priv->s_iowait,
&sde->dmawait);
- priv->s_iowait.lock = &dev->iowait_lock;
+ priv->s_iowait.lock = &sde->waitlock;
trace_hfi1_qpsleep(qp, RVT_S_WAIT_DMA_DESC);
rvt_get_qp(qp);
}
- write_sequnlock(&dev->iowait_lock);
+ write_sequnlock(&sde->waitlock);
hfi1_qp_unbusy(qp, wait);
spin_unlock_irqrestore(&qp->s_lock, flags);
ret = -EBUSY;
@@ -492,7 +495,7 @@ static int iowait_sleep(
}
return ret;
eagain:
- write_sequnlock(&dev->iowait_lock);
+ write_sequnlock(&sde->waitlock);
spin_unlock_irqrestore(&qp->s_lock, flags);
list_del_init(&stx->list);
return -EAGAIN;