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avf: descriptor should be volatile

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Change-Id: I2cb4cf2167b6e958d2e57b461848a4a189e3fda0
Signed-off-by: Damjan Marion <damarion@cisco.com>
This commit is contained in:
Damjan Marion
2018-07-11 13:29:17 +02:00
committed by Damjan Marion
parent 151b322492
commit 9a02c54e4f
4 changed files with 60 additions and 40 deletions
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12
src/plugins/avf/output.c
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@@ -57,12 +57,12 @@ CLIB_MULTIARCH_FN (avf_interface_tx) (vlib_main_t * vm,
clib_spinlock_lock_if_init (&txq->lock);
/* release cosumed bufs */
if (txq->n_bufs)
if (txq->n_enqueued)
{
u16 first, slot, n_free = 0;
first = slot = (txq->next - txq->n_bufs) & mask;
first = slot = (txq->next - txq->n_enqueued) & mask;
d0 = txq->descs + slot;
while (n_free < txq->n_bufs && avf_tx_desc_get_dtyp (d0) == 0x0F)
while (n_free < txq->n_enqueued && avf_tx_desc_get_dtyp (d0) == 0x0F)
{
n_free++;
slot = (slot + 1) & mask;
@@ -71,7 +71,7 @@ CLIB_MULTIARCH_FN (avf_interface_tx) (vlib_main_t * vm,
if (n_free)
{
txq->n_bufs -= n_free;;
txq->n_enqueued -= n_free;
vlib_buffer_free_from_ring (vm, txq->bufs, first, txq->size,
n_free);
}
@@ -126,7 +126,7 @@ CLIB_MULTIARCH_FN (avf_interface_tx) (vlib_main_t * vm,
d3->qword[1] = ((u64) b3->current_length) << 34 | bits;
txq->next = (txq->next + 4) & mask;
txq->n_bufs += 4;
txq->n_enqueued += 4;
buffers += 4;
n_left -= 4;
}
@@ -147,7 +147,7 @@ CLIB_MULTIARCH_FN (avf_interface_tx) (vlib_main_t * vm,
d0->qword[1] = (((u64) b0->current_length) << 34) | bits;
txq->next = (txq->next + 1) & mask;
txq->n_bufs++;
txq->n_enqueued++;
buffers++;
n_left--;
}