linux/drivers/net
Soren Brinkmann c8ea5a22bd net: macb: Fix race between HW and driver
Under "heavy" RX load, the driver cannot handle the descriptors fast
enough. In detail, when a descriptor is consumed, its used flag is
cleared and once the RX budget is consumed all descriptors with a
cleared used flag are prepared to receive more data. Under load though,
the HW may constantly receive more data and use those descriptors with a
cleared used flag before they are actually prepared for next usage.

The head and tail pointers into the RX-ring should always be valid and
we can omit clearing and checking of the used flag.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 17:11:18 -04:00
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appletalk
arcnet
bonding
caif
can
cris
dsa
ethernet net: macb: Fix race between HW and driver 2014-05-05 17:11:18 -04:00
fddi
hamradio
hippi
hyperv
ieee802154
irda
phy
plip
ppp
slip
team
usb net: cdc_ncm: fix buffer overflow 2014-05-05 15:19:31 -04:00
vmxnet3
wan
wimax
wireless
xen-netback
Kconfig
LICENSE.SRC
Makefile
Space.c
dummy.c
eql.c
ifb.c
loopback.c
macvlan.c
macvtap.c
mdio.c
mii.c
netconsole.c
nlmon.c
ntb_netdev.c
rionet.c
sb1000.c
sungem_phy.c
tun.c
veth.c
virtio_net.c
vxlan.c
xen-netfront.c