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![]() Since when XDP was introduced, drop counter has been able to be updated much more frequently than before, as XDP_DROP increments the counter. Thus for performance analysis per-queue drop counter would be useful. Also this avoids cache contention and race on updating the counter. It is currently racy because napi handlers read-modify-write it without any locks. There are more counters in dev->stats that are racy, but I left them per-device, because they are rarely updated and does not worth being per-queue counters IMHO. To fix them we need atomic ops or some kind of locks. Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net> |
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appletalk | ||
arcnet | ||
bonding | ||
caif | ||
can | ||
dsa | ||
ethernet | ||
fddi | ||
fjes | ||
hamradio | ||
hippi | ||
hyperv | ||
ieee802154 | ||
ipvlan | ||
netdevsim | ||
phy | ||
plip | ||
ppp | ||
slip | ||
team | ||
usb | ||
vmxnet3 | ||
wan | ||
wimax | ||
wireless | ||
xen-netback | ||
dummy.c | ||
eql.c | ||
geneve.c | ||
gtp.c | ||
ifb.c | ||
Kconfig | ||
LICENSE.SRC | ||
loopback.c | ||
macsec.c | ||
macvlan.c | ||
macvtap.c | ||
Makefile | ||
mdio.c | ||
mii.c | ||
net_failover.c | ||
netconsole.c | ||
nlmon.c | ||
ntb_netdev.c | ||
rionet.c | ||
sb1000.c | ||
Space.c | ||
sungem_phy.c | ||
tap.c | ||
thunderbolt.c | ||
tun.c | ||
veth.c | ||
virtio_net.c | ||
vrf.c | ||
vsockmon.c | ||
vxlan.c | ||
xen-netfront.c |