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Diffstat (limited to 'src/plugins/avf/device.c')
-rw-r--r--src/plugins/avf/device.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/src/plugins/avf/device.c b/src/plugins/avf/device.c
index 8172c8324f7..15af95bbbff 100644
--- a/src/plugins/avf/device.c
+++ b/src/plugins/avf/device.c
@@ -113,10 +113,9 @@ clib_error_t *
avf_aq_desc_enq (vlib_main_t * vm, avf_device_t * ad, avf_aq_desc_t * dt,
void *data, int len)
{
- avf_main_t *am = &avf_main;
clib_error_t *err = 0;
avf_aq_desc_t *d, dc;
- int n_retry = 5;
+ f64 t0, wait_time, suspend_time = AVF_AQ_ENQ_SUSPEND_TIME;
d = &ad->atq[ad->atq_next_slot];
clib_memcpy_fast (d, dt, sizeof (avf_aq_desc_t));
@@ -138,22 +137,24 @@ avf_aq_desc_enq (vlib_main_t * vm, avf_device_t * ad, avf_aq_desc_t * dt,
clib_memcpy_fast (&dc, d, sizeof (avf_aq_desc_t));
CLIB_MEMORY_BARRIER ();
- vlib_log_debug (am->log_class, "%U", format_hexdump, data, len);
ad->atq_next_slot = (ad->atq_next_slot + 1) % AVF_MBOX_LEN;
avf_reg_write (ad, AVF_ATQT, ad->atq_next_slot);
avf_reg_flush (ad);
+ t0 = vlib_time_now (vm);
retry:
- vlib_process_suspend (vm, 10e-6);
+ vlib_process_suspend (vm, suspend_time);
+ wait_time = vlib_time_now (vm) - t0;
if (((d->flags & AVF_AQ_F_DD) == 0) || ((d->flags & AVF_AQ_F_CMP) == 0))
{
- if (--n_retry == 0)
+ if (wait_time > AVF_AQ_ENQ_MAX_WAIT_TIME)
{
err = clib_error_return (0, "adminq enqueue timeout [opcode 0x%x]",
d->opcode);
goto done;
}
+ suspend_time *= 2;
goto retry;
}