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linux/drivers/net
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Rusty Russell fb6813f480 virtio: Recycle unused recv buffer pages for large skbs in net driver 
If we hack the virtio_net driver to always allocate full-sized (64k+)
skbuffs, the driver slows down (lguest numbers):

  Time to receive 1GB (small buffers): 10.85 seconds
  Time to receive 1GB (64k+ buffers): 24.75 seconds

Of course, large buffers use up more space in the ring, so we increase
that from 128 to 2048:

  Time to receive 1GB (64k+ buffers, 2k ring): 16.61 seconds

If we recycle pages rather than using alloc_page/free_page:

  Time to receive 1GB (64k+ buffers, 2k ring, recycle pages): 10.81 seconds

This demonstrates that with efficient allocation, we don't need to
have a separate "small buffer" queue.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-07-25 12:06:02 +10:00
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appletalk
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arcnet
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arm
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
2008-07-22 19:09:51 -07:00
atl1e
[netdrvr] atl1d: fix !CONFIG_PM build
2008-07-22 21:17:38 -04:00
atlx
atl1: Do not wake queue before queue has been started.
2008-07-21 08:28:37 -07:00
bonding
netdev: Handle ->addr_list_lock just like ->_xmit_lock for lockdep.
2008-07-22 14:16:42 -07:00
can
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chelsio
cxgb: delete non NAPI code from the driver.
2008-07-11 01:11:42 -04:00
cris
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cxgb3
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
2008-07-18 02:39:39 -07:00
e1000
e1000: make ioport free
2008-07-22 19:39:14 -04:00
e1000e
e1000e: fix e1000_netpoll(), remove extraneous e1000_clean_tx_irq() call
2008-07-23 15:30:52 -07:00
ehea
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fs_enet
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
2008-07-22 19:09:51 -07:00
hamradio
netdev: Handle ->addr_list_lock just like ->_xmit_lock for lockdep.
2008-07-22 14:16:42 -07:00
ibm_newemac
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
2008-07-18 02:39:39 -07:00
igb
net: igb_main.c fix sparse integer as NULL pointer warning
2008-07-22 17:54:12 -04:00
irda
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
2008-07-20 17:43:29 -07:00
ixgb
netdrv intel: always enable VLAN filtering except in promiscous mode
2008-07-16 20:16:14 -07:00
ixgbe
ixgbe: remove device ID for unsupported device
2008-07-22 19:31:00 -04:00
ixp2000
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mlx4
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
2008-07-24 12:56:07 -07:00
myri10ge
myri10ge: use ioremap_wc
2008-07-22 16:09:13 -04:00
netxen
netxen: Needs to include linux/vmalloc.h
2008-07-22 18:29:10 -07:00
pcmcia
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phy
net/phy: Fix 88e1111 copper/fiber selection in RGMII mode
2008-07-22 17:59:12 -04:00
sfc
sfc: Create one RX queue and interrupt per CPU package by default
2008-07-22 19:44:15 -04:00
skfp
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tokenring
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
2008-07-18 02:39:39 -07:00
tulip
de4x5: Remove developer debug feature about set/clear promisc
2008-07-22 16:09:09 -04:00
usb
rndis_host: support WM6 devices as modems
2008-07-22 19:45:49 -04:00
wan
device create: net: convert device_create to device_create_drvdata
2008-07-21 21:54:44 -07:00
wireless
ipw2200: Call netif_*_queue() interfaces properly.
2008-07-22 18:32:47 -07:00
3c59x.c
3c59x: handle pci_name() being const
2008-07-21 21:55:03 -07:00
3c501.c
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3c501.h
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3c503.c
8390: Split 8390 support into a pausing and a non pausing driver core
2008-07-04 08:47:51 -04:00
3c503.h
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3c505.c
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3c505.h
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3c507.c
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3c509.c
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3c515.c
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3c523.c
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3c523.h
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3c527.c
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3c527.h
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7990.c
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7990.h
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8139cp.c
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8139too.c
8139too: Fall back to PIO when MMIO fails.
2008-07-22 17:59:30 -04:00
8390.c
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8390.h
8390: Split 8390 support into a pausing and a non pausing driver core
2008-07-04 08:47:51 -04:00
8390p.c
8390: Split 8390 support into a pausing and a non pausing driver core
2008-07-04 08:47:51 -04:00
82596.c
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a2065.c
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a2065.h
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ac3200.c
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acenic_firmware.h
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acenic.c
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acenic.h
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amd8111e.c
amd8111e: delete non NAPI code from the driver.
2008-07-07 22:40:58 -07:00
amd8111e.h
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apne.c
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ariadne.c
ariadne: use netstats in net_device structure
2008-07-20 17:24:38 -07:00
ariadne.h
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at1700.c
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atarilance.c
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atp.c
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atp.h
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au1000_eth.c
netdev: bunch of drivers: avoid WARN at net/core/dev.c:1328
2008-07-22 15:41:24 -07:00
au1000_eth.h
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ax88796.c
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b44.c
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b44.h
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bfin_mac.c
netdev: bunch of drivers: avoid WARN at net/core/dev.c:1328
2008-07-22 15:41:24 -07:00
bfin_mac.h
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bmac.c
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bmac.h
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bnx2_fw2.h
bnx2: Update TPAT firmware
2008-07-18 17:54:17 -07:00
bnx2_fw.h
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bnx2.c
bnx2: Update version to 1.7.9.
2008-07-18 17:58:57 -07:00
bnx2.h
bnx2: Add TX multiqueue support.
2008-07-18 17:55:11 -07:00
bnx2x_fw_defs.h
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bnx2x_hsi.h
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bnx2x_init_values.h
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bnx2x_init.h
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bnx2x_link.c
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bnx2x_link.h
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bnx2x_main.c
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bnx2x_reg.h
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bnx2x.h
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bsd_comp.c
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cassini.c
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cassini.h
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cpmac.c
netdev: bunch of drivers: avoid WARN at net/core/dev.c:1328
2008-07-22 15:41:24 -07:00
cs89x0.c
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cs89x0.h
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de600.c
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de600.h
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de620.c
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de620.h
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declance.c
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defxx.c
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defxx.h
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depca.c
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depca.h
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dl2k.c
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dl2k.h
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dm9000.c
DM9000: Remove magic numbers
2008-07-22 17:54:07 -04:00
dm9000.h
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dummy.c
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e100.c
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e2100.c
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eepro100.c
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eepro.c
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eexpress.c
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eexpress.h
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enc28j60_hw.h
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enc28j60.c
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epic100.c
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eql.c
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es3210.c
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eth16i.c
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ewrk3.c
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ewrk3.h
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fealnx.c
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fec_mpc52xx_phy.c
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fec_mpc52xx.c
netdev: bunch of drivers: avoid WARN at net/core/dev.c:1328
2008-07-22 15:41:24 -07:00
fec_mpc52xx.h
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fec.c
m68knommu: remove last use of CONFIG_FADS and CONFIG_RPXCLASSIC
2008-07-23 15:11:29 +10:00
fec.h
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forcedeth.c
netdev: Add netdev->addr_list_lock protection.
2008-07-15 00:13:44 -07:00
gianfar_ethtool.c
gianfar: Add magic packet and suspend/resume support.
2008-07-16 17:57:47 -05:00
gianfar_mii.c
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gianfar_mii.h
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gianfar_sysfs.c
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gianfar.c
Merge commit 'origin/master'
2008-07-22 17:12:37 +10:00
gianfar.h
Merge commit 'origin/master'
2008-07-22 17:12:37 +10:00
hamachi.c
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hp100.c
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hp100.h
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hp-plus.c
net 8390p: fix interface usage
2008-07-22 17:50:44 -04:00
hp.c
net 8390p: fix interface usage
2008-07-22 17:50:44 -04:00
hplance.c
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hplance.h
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hydra.c
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ibmlana.c
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ibmlana.h
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ibmveth.c
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ibmveth.h
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ifb.c
pkt_sched: Kill netdev_queue lock.
2008-07-17 19:21:30 -07:00
ioc3-eth.c
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ipg.c
ipg: run-time configurable jumbo frame support
2008-07-04 08:46:54 -04:00
ipg.h
ipg: run-time configurable jumbo frame support
2008-07-04 08:46:54 -04:00
isa-skeleton.c
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iseries_veth.c
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jazzsonic.c
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Kconfig
e1000: delete non NAPI code from the driver
2008-07-22 19:39:11 -04:00
korina.c
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lance.c
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lasi_82596.c
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lib8390.c
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lib82596.c
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LICENSE.SRC
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lne390.c
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loopback.c
netdev: netdev_priv() can now be sane again.
2008-07-17 19:21:09 -07:00
lp486e.c
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mac89x0.c
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mac8390.c
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macb.c
netdev: bunch of drivers: avoid WARN at net/core/dev.c:1328
2008-07-22 15:41:24 -07:00
macb.h
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mace.c
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mace.h
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macmace.c
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macsonic.c
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macvlan.c
netdev: Handle ->addr_list_lock just like ->_xmit_lock for lockdep.
2008-07-22 14:16:42 -07:00
Makefile
atl1e: Atheros L1E Gigabit Ethernet driver
2008-07-22 19:31:04 -04:00
meth.c
Fix typo in meth driver
2008-07-22 19:34:21 -04:00
meth.h
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mii.c
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mipsnet.c
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mv643xx_eth.c
mv643xx_eth: fix NETPOLL build
2008-07-22 19:56:37 -04:00
mvme147.c
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myri_code.h
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myri_sbus.c
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myri_sbus.h
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natsemi.c
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ne2.c
net 8390p: fix interface usage
2008-07-22 17:50:44 -04:00
ne2k-pci.c
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ne3210.c
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ne-h8300.c
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ne.c
net 8390p: fix interface usage
2008-07-22 17:50:44 -04:00
netconsole.c
configfs: Allow ->make_item() and ->make_group() to return detailed errors.
2008-07-17 15:21:29 -07:00
netx-eth.c
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ni52.c
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ni52.h
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ni65.c
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ni65.h
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ni5010.c
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ni5010.h
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niu.c
niu: Add TX multiqueue support.
2008-07-17 19:21:17 -07:00
niu.h
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ns83820.c
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pasemi_mac_ethtool.c
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pasemi_mac.c
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pasemi_mac.h
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pci-skeleton.c
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pcnet32.c
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plip.c
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ppp_async.c
tty: Ldisc revamp
2008-07-20 17:12:34 -07:00
ppp_deflate.c
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ppp_generic.c
device create: net: convert device_create to device_create_drvdata
2008-07-21 21:54:44 -07:00
ppp_mppe.c
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ppp_mppe.h
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ppp_synctty.c
tty: Ldisc revamp
2008-07-20 17:12:34 -07:00
pppoe.c
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pppol2tp.c
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pppox.c
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ps3_gelic_net.c
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ps3_gelic_net.h
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ps3_gelic_wireless.c
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ps3_gelic_wireless.h
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qla3xxx.c
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qla3xxx.h
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r6040.c
r6040: rework init_one error handling
2008-07-22 20:00:01 -04:00
r8169.c
r8169: avoid thrashing PCI conf space above RTL_GIGA_MAC_VER_06
2008-07-20 19:49:30 +02:00
rionet.c
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rrunner.c
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rrunner.h
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s2io-regs.h
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s2io.c
net: Use queue aware tests throughout.
2008-07-17 19:21:07 -07:00
s2io.h
S2io: Enable msi-x link interrupts.
2008-07-11 01:11:40 -04:00
sb1000.c
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sb1250-mac.c
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sc92031.c
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seeq8005.c
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seeq8005.h
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sgiseeq.c
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sgiseeq.h
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sh_eth.c
netdev: bunch of drivers: avoid WARN at net/core/dev.c:1328
2008-07-22 15:41:24 -07:00
sh_eth.h
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sis190.c
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sis900.c
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sis900.h
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skge.c
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skge.h
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sky2.c
sky2: don't stop queue on shutdown
2008-07-22 21:53:40 -07:00
sky2.h
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slhc.c
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slip.c
tty: Ldisc revamp
2008-07-20 17:12:34 -07:00
slip.h
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smc91x.c
[NET] smc91x: prepare SMC_USE_PXA_DMA to be specified in platform data
2008-07-12 21:52:41 +01:00
smc91x.h
[ARM] pxa: make littleton to use the new smc91x platform data
2008-07-12 21:52:41 +01:00
smc911x.c
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smc911x.h
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smc9194.c
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smc9194.h
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smc-mca.c
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smc-ultra32.c
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smc-ultra.c
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sni_82596.c
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sonic.c
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sonic.h
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Space.c
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spider_net_ethtool.c
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spider_net.c
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spider_net.h
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starfire_firmware.h
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starfire_firmware.pl
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starfire.c
starfire: delete non NAPI code from the driver.
2008-07-07 22:40:42 -07:00
stnic.c
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sun3_82586.c
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sun3_82586.h
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sun3lance.c
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sunbmac.c
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sunbmac.h
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sundance.c
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sungem_phy.c
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sungem_phy.h
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sungem.c
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sungem.h
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sunhme.c
sunhme: Remove stop/wake TX queue calls in set-multicast-list handler.
2008-07-21 08:34:49 -07:00
sunhme.h
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sunlance.c
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sunqe.c
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sunqe.h
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sunvnet.c
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sunvnet.h
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tc35815.c
netdev: bunch of drivers: avoid WARN at net/core/dev.c:1328
2008-07-22 15:41:24 -07:00
tehuti_fw.h
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tehuti.c
netdrv: don't truncate VLAN TCI with VLAN stripping
2008-07-06 20:48:41 -07:00
tehuti.h
netdrv: don't truncate VLAN TCI with VLAN stripping
2008-07-06 20:48:41 -07:00
tg3.c
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tg3.h
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tlan.c
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tlan.h
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tsi108_eth.c
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tsi108_eth.h
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tun.c
net: tun.c fix cast
2008-07-22 17:54:17 -04:00
typhoon-firmware.h
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typhoon.c
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typhoon.h
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ucc_geth_ethtool.c
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ucc_geth_mii.c
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ucc_geth_mii.h
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ucc_geth.c
ucc_geth: do not touch net queue in adjust_link phylib callback
2008-07-21 08:30:36 -07:00
ucc_geth.h
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veth.c
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via-rhine.c
via-rhine: delete non NAPI code from the driver.
2008-07-11 01:11:43 -04:00
via-velocity.c
via-velocity: add velocity_set_rxbufsize helper
2008-07-11 01:10:15 -04:00
via-velocity.h
via-velocity: remove the bounce buffers
2008-07-11 01:10:13 -04:00
virtio_net.c
virtio: Recycle unused recv buffer pages for large skbs in net driver
2008-07-25 12:06:02 +10:00
wd.c
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xen-netfront.c
xen-netfront: fix xennet_release_tx_bufs()
2008-07-16 10:55:36 +02:00
yellowfin.c
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znet.c
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zorro8390.c
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