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| author | Marcin Wojtas <mw@FreeBSD.org> | 2019-05-30 13:13:15 +0000 |
|---|---|---|
| committer | Marcin Wojtas <mw@FreeBSD.org> | 2019-05-30 13:13:15 +0000 |
| commit | c9b099ec94f7eaeb91b7e0c51b7fecb755add24f (patch) | |
| tree | 364b16f61ce5900c8cae8594ea7c6e91a4d6590d /sys/dev/ena | |
| parent | 277f11c40147c446f955afa94a791593480f6690 (diff) | |
| download | src-c9b099ec94f7eaeb91b7e0c51b7fecb755add24f.tar.gz src-c9b099ec94f7eaeb91b7e0c51b7fecb755add24f.zip | |
Trigger reset in ENA if there are too many Rx descriptors
Whenever the driver will receive too many descriptors from the device,
it should trigger the device reset, as it is indicating that the device
is in invalid state.
Submitted by: Michal Krawczyk <mk@semihalf.com>
Obtained from: Semihalf
Sponsored by: Amazon, Inc.
Notes
Notes:
svn path=/head/; revision=348390
Diffstat (limited to 'sys/dev/ena')
| -rw-r--r-- | sys/dev/ena/ena.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/sys/dev/ena/ena.c b/sys/dev/ena/ena.c index 2801248c59d6..9481e5cb182f 100644 --- a/sys/dev/ena/ena.c +++ b/sys/dev/ena/ena.c @@ -1717,7 +1717,12 @@ ena_rx_cleanup(struct ena_ring *rx_ring) error: counter_u64_add(rx_ring->rx_stats.bad_desc_num, 1); - return (RX_BUDGET - budget); + + /* Too many desc from the device. Trigger reset */ + adapter->reset_reason = ENA_REGS_RESET_TOO_MANY_RX_DESCS; + adapter->trigger_reset = true; + + return (0); } /********************************************************************* |