openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity
linux/drivers/net/ethernet
History
Sebastian Siewior b4727e69b8 net/cpsw: redo rx skb allocation in rx path 
In case that we run into OOM during the allocation of the new rx-skb we
don't get one and we have one skb less than we used to have. If this
continues to happen then we end up with no rx-skbs at all.
This patch changes the following:
- if we fail to allocate the new skb, then we treat the currently
  completed skb as the new one and so drop the currently received data.
- instead of testing multiple times if the device is gone we rely one
  the status field which is set to -ENOSYS in case the channel is going
  down and incomplete requests are purged.
  cpdma_chan_stop() removes most of the packages with -ENOSYS. The
  currently active packet which is removed has the "tear down" bit set.
  So if that bit is set, we send ENOSYS as well otherwise we pass the
  status bits which are required to figure out which of the two possible
  just finished.

Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2013-04-25 04:11:50 -04:00
..
3com net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
8390 net: ax88796: avoid 64 bit arithmetic 2013-04-19 17:57:48 -04:00
adaptec net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
adi drivers:net: Remove unnecessary OOM messages after netdev_alloc_skb 2013-03-09 16:09:19 -05:00
aeroflex drivers:net: dma_alloc_coherent: use __GFP_ZERO instead of memset(, 0) 2013-03-17 12:50:24 -04:00
alteon net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
amd net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
apple drivers:net: Remove dma_alloc_coherent OOM messages 2013-03-15 08:56:58 -04:00
atheros net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
broadcom bnx2x, bnx2fc: Use per port max exchange resources 2013-04-25 04:06:46 -04:00
brocade net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
cadence net/macb: fix error return code in macb_probe() 2013-04-15 14:09:37 -04:00
calxeda net: calxedaxgmac: fix condition in xgmac_set_features() 2013-04-25 03:50:17 -04:00
chelsio net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
cirrus cirrus: cs89x0: remove two obsolete Kconfig macros 2013-03-29 15:40:24 -04:00
cisco net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
davicom Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-01 13:36:50 -04:00
dec Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-03-20 12:46:26 -04:00
dlink drivers:net: Remove unnecessary OOM messages after netdev_alloc_skb 2013-03-09 16:09:19 -05:00
emulex Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-22 20:32:51 -04:00
faraday net: ftgmac100: Use module_platform_driver() 2013-03-18 13:02:37 -04:00
freescale net: fec: Enable imx6 enet checksum acceleration. 2013-04-25 03:58:26 -04:00
fujitsu drivers:net: Remove unnecessary OOM messages after netdev_alloc_skb 2013-03-09 16:09:19 -05:00
hp drivers/net: fix up function prototypes after __dev* removals 2012-12-07 14:22:22 -05:00
i825xx drivers:net: Remove unnecessary OOM messages after netdev_alloc_skb 2013-03-09 16:09:19 -05:00
ibm net: Fix vlan bitmask changes in EHEA driver. 2013-04-22 19:34:34 -04:00
icplus drivers/net/ethernet/icplus: remove depends on CONFIG_EXPERIMENTAL 2013-01-22 12:01:33 -08:00
intel igb: Bump version of driver 2013-04-24 20:47:48 -07:00
marvell Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-22 20:32:51 -04:00
mellanox net/mlx4_en: Add a service task 2013-04-24 16:30:14 -04:00
micrel ks8851: Remove unneeded PM_OPS definitions 2013-04-16 16:30:51 -04:00
microchip net: ethernet: enc28j60: use spi_get_drvdata() and spi_set_drvdata() 2013-04-07 16:48:19 -04:00
myricom net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
natsemi net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
neterion net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
nuvoton drivers:net: Remove dma_alloc_coherent OOM messages 2013-03-15 08:56:58 -04:00
nvidia net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
nxp net/nxp/lpc_eth: Drop ifdef CONFIG_OF_NET 2013-04-02 16:43:56 -04:00
octeon ethtool: fix drvinfo strings set in drivers 2013-01-06 21:06:31 -08:00
oki-semi pch_gbe: minor: report the actual error on MTU change 2013-04-16 16:43:35 -04:00
packetengines Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
pasemi drivers:net: dma_alloc_coherent: use __GFP_ZERO instead of memset(, 0) 2013-03-17 12:50:24 -04:00
qlogic qlcnic: Update version to 5.2.42 2013-04-24 19:34:06 -04:00
rdc drivers:net: Remove unnecessary OOM messages after netdev_alloc_skb 2013-03-09 16:09:19 -05:00
realtek net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
renesas net: vlan: prepare for 802.1ad VLAN filtering offload 2013-04-19 14:45:27 -04:00
seeq drivers:net: Remove unnecessary OOM messages after netdev_alloc_skb 2013-03-09 16:09:19 -05:00
sfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-03-20 12:46:26 -04:00
sgi drivers:net: dma_alloc_coherent: use __GFP_ZERO instead of memset(, 0) 2013-03-17 12:50:24 -04:00
silan Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
sis sis900: check for DMA map errors 2013-04-15 14:11:37 -04:00
smsc net/smsc911x: Use NULL instead of integer for pointer 2013-03-19 10:20:27 -04:00
stmicro Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-22 20:32:51 -04:00
sun net: add ETH_P_802_3_MIN 2013-03-28 01:20:42 -04:00
tehuti net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
ti net/cpsw: redo rx skb allocation in rx path 2013-04-25 04:11:50 -04:00
tile net: remove unnecessary NET_ADDR_RANDOM "bitclean" 2013-01-03 22:37:36 -08:00
toshiba net: vlan: rename NETIF_F_HW_VLAN_* feature flags to NETIF_F_HW_VLAN_CTAG_* 2013-04-19 14:45:26 -04:00
tundra drivers:net: dma_alloc_coherent: use __GFP_ZERO instead of memset(, 0) 2013-03-17 12:50:24 -04:00
via net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
wiznet net: ethernet: wiznet: add CONFIG_PM_SLEEP to suspend/resume functions 2013-03-26 12:47:17 -04:00
xilinx net: vlan: rename NETIF_F_HW_VLAN_* feature flags to NETIF_F_HW_VLAN_CTAG_* 2013-04-19 14:45:26 -04:00
xircom drivers:net: Remove unnecessary OOM messages after netdev_alloc_skb 2013-03-09 16:09:19 -05:00
xscale net: phy: remove flags argument from phy_{attach, connect, connect_direct} 2013-01-14 15:11:50 -05:00
Kconfig drivers/net: delete old 8 bit ISA Racal ni5010 support. 2013-01-22 10:39:52 -05:00
Makefile drivers/net: delete old 8 bit ISA Racal ni5010 support. 2013-01-22 10:39:52 -05:00
dnet.c net: phy: remove flags argument from phy_{attach, connect, connect_direct} 2013-01-14 15:11:50 -05:00
dnet.h
…
ethoc.c ethoc: Cleanup driver format 2013-01-29 14:07:05 -05:00
fealnx.c drivers/net: fix up function prototypes after __dev* removals 2012-12-07 14:22:22 -05:00
jme.c net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
jme.h
…
korina.c ethtool: fix drvinfo strings set in drivers 2013-01-06 21:06:31 -08:00
lantiq_etop.c lantiq_etop: use free_netdev(netdev) instead of kfree() 2013-03-21 11:50:10 -04:00
netx-eth.c drivers:net: Remove unnecessary OOM messages after netdev_alloc_skb 2013-03-09 16:09:19 -05:00
s6gmac.c s6gmac: fix error return code in s6gmac_probe() 2013-03-22 10:23:42 -04:00