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vtnet: Do "hardware" accounting for the total number of received octets

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While here, advertise the IFCAP_HWSTATS capability to avoid the net
stack from double counting it.

Co-authored-by:	zlei
Reviewed by:	zlei
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D44816

(cherry picked from commit a14d561e58529c9686a2efc47f4828ad82026e63)
This commit is contained in:
Joyu Liao 2025-09-05 04:00:27 +08:00 committed by Franco Fichtner
parent 244acf8e26
commit e71ace02ea
1 changed files with 3 additions and 0 deletions
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3
sys/dev/virtio/network/if_vtnet.c
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@ -1178,6 +1178,7 @@ vtnet_setup_interface(struct vtnet_softc *sc)
if (sc->vtnet_max_mtu >= ETHERMTU_JUMBO)
if_setcapabilitiesbit(ifp, IFCAP_JUMBO_MTU, 0);
if_setcapabilitiesbit(ifp, IFCAP_VLAN_MTU, 0);
if_setcapabilitiesbit(ifp, IFCAP_HWSTATS, 0);
/*
* Capabilities after here are not enabled by default.
@ -3047,6 +3048,8 @@ vtnet_get_counter(if_t ifp, ift_counter cnt)
return (rxaccum.vrxs_iqdrops);
case IFCOUNTER_IERRORS:
return (rxaccum.vrxs_ierrors);
case IFCOUNTER_IBYTES:
return (rxaccum.vrxs_ibytes);
case IFCOUNTER_OPACKETS:
return (txaccum.vtxs_opackets);
#ifndef VTNET_LEGACY_TX