| 34c7d7dd | 29-Mar-2018 |
Imre Vadász <imre@vdsz.com> |
if_vtnet - Add polling support.
* We need to tear down the interrupts, to reliably stop them from firing,
when enabling polling. So when disabling polling, we need to hope that
we can get all in
if_vtnet - Add polling support.
* We need to tear down the interrupts, to reliably stop them from firing,
when enabling polling. So when disabling polling, we need to hope that
we can get all interrupts set up again, as before.
* When polling, handle the rx and tx virtqueues on the same cpu.
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| 36ad0f35 | 25-Mar-2018 |
Imre Vadász <imre@vdsz.com> |
if_vtnet - Don't drop vtnet_slz in some of the virtqueue_notify() calls.
* There are several cases where the vtnet_slz serializer is dropped around
virtqueue_notify() calls, with the hope that thi
if_vtnet - Don't drop vtnet_slz in some of the virtqueue_notify() calls.
* There are several cases where the vtnet_slz serializer is dropped around
virtqueue_notify() calls, with the hope that this allows other cores to
run if_vtnet code in parallel.
* In vtnet_exec_ctrl_cmd(), it shouldn't make a significant performance
difference, and avoids some theoretical race possibilities.
* In the vtnet_init_rx_vq initialization code, it also is irrelevant for
performance, and only complicates things.
* In the vtnet_rxeof() and vtnet_start() cases it might actually be relevant
for performance, so we keep those for now. When changing the driver to
use the MULTI_SERIALIZERS MODE, the serializer dropping can also be
removed in those two cases.
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| af62becb | 25-Mar-2018 |
Imre Vadász <imre@vdsz.com> |
if_vtnet - Remove vtnet_tick_ch and vtnet_cfgchg_task from softc struct.
* Forgot to remove the softc variables in the changes
c5f8e1538bcc13f7a39b805bcc5b774780 and 603be9646446bdb4292b6cd2754478
if_vtnet - Remove vtnet_tick_ch and vtnet_cfgchg_task from softc struct.
* Forgot to remove the softc variables in the changes
c5f8e1538bcc13f7a39b805bcc5b774780 and 603be9646446bdb4292b6cd27544788c2c.
* Also remove a leftover taskqueue_drain() call.
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