diff options
| author | Stefan Fritsch <sf@cvs.openbsd.org> | 2013-03-16 19:12:04 +0000 |
|---|---|---|
| committer | Stefan Fritsch <sf@cvs.openbsd.org> | 2013-03-16 19:12:04 +0000 |
| commit | a889449f12ef1b60e28a31a3103976e05e2f71c3 (patch) | |
| tree | f70bdbd66491c3fa5c7f6e3911a8fc115564f253 /share/man | |
| parent | 45c38587a517a0e0659891e7244b158640e9146f (diff) | |
mention how to disable RingEventIndex
OK jmc@
Diffstat (limited to 'share/man')
| -rw-r--r-- | share/man/man4/vio.4 | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/share/man/man4/vio.4 b/share/man/man4/vio.4 index ddc09469ecc..b5abe7e044e 100644 --- a/share/man/man4/vio.4 +++ b/share/man/man4/vio.4 @@ -1,4 +1,4 @@ -.\" $OpenBSD: vio.4,v 1.7 2013/01/16 00:30:48 brad Exp $ +.\" $OpenBSD: vio.4,v 1.8 2013/03/16 19:12:03 sf Exp $ .\" .\" Copyright (c) 2012 Stefan Fritsch <sf@sfritsch.de> .\" @@ -14,20 +14,25 @@ .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. .\" -.Dd $Mdocdate: January 16 2013 $ +.Dd $Mdocdate: March 16 2013 $ .Dt VIO 4 .Os .Sh NAME .Nm vio .Nd VirtIO network device .Sh SYNOPSIS -.Cd "vio* at virtio?" +.Cd "vio* at virtio? flags 0x00" .Sh DESCRIPTION The .Nm driver provides support for the .Xr virtio 4 network interface provided by bhyve, KVM, QEMU, and VirtualBox. +.Pp +Setting flags to 0x02 disables the RingEventIndex feature. +This can be tried as a workaround for possible bugs in host implementations or +.Nm +at the cost of slightly reduced performance. .Sh SEE ALSO .Xr intro 4 , .Xr virtio 4 |