git: 973304077ff8 - stable/12 - virtio: enable VTNET_LEGACY_TX when ALTQ is enabled.

[Kristof Provost]

The branch stable/12 has been updated by kp:

URL: https://cgit.FreeBSD.org/src/commit/?id=973304077ff865a6ebeb55aa1d38f8d44b7dc3b4

commit 973304077ff865a6ebeb55aa1d38f8d44b7dc3b4
Author:     Luiz Otavio O Souza <loos at FreeBSD.org>
AuthorDate: 2017-10-26 02:30:54 +0000
Commit:     Kristof Provost <kp at FreeBSD.org>
CommitDate: 2021-08-05 20:05:26 +0000

    virtio: enable VTNET_LEGACY_TX when ALTQ is enabled.
    
    ALTQ only works on network drivers which use if_start (rather than
    if_transmit). vtnet uses if_start if built with VTNET_LEGACY_TX. Default
    to that the kernel is built with ALTQ enabled, to reduce user surprise.
    
    MFC after:      1 week
    Sponsored by:   Rubicon Communications, LLC ("Netgate")
    
    (cherry picked from commit 5afe81a7b23afd27289ca40e04a6a764134d6273)
---
 sys/dev/virtio/network/if_vtnetvar.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sys/dev/virtio/network/if_vtnetvar.h b/sys/dev/virtio/network/if_vtnetvar.h
index 4498ad534517..39f5c85d11be 100644
--- a/sys/dev/virtio/network/if_vtnetvar.h
+++ b/sys/dev/virtio/network/if_vtnetvar.h
@@ -31,6 +31,10 @@
 #ifndef _IF_VTNETVAR_H
 #define _IF_VTNETVAR_H
 
+#ifdef ALTQ
+#define	VTNET_LEGACY_TX
+#endif
+
 struct vtnet_softc;
 
 struct vtnet_statistics {