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linux/drivers/net/ethernet
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Dwight Engen d0aedcd4f1 vio: fix reuse of vio_dring slot 
vio_dring_avail() will allow use of every dring entry, but when the last
entry is allocated then dr->prod == dr->cons which is indistinguishable from
the ring empty condition. This causes the next allocation to reuse an entry.
When this happens in sunvdc, the server side vds driver begins nack'ing the
messages and ends up resetting the ldc channel. This problem does not effect
sunvnet since it checks for < 2.

The fix here is to just never allocate the very last dring slot so that full
and empty are not the same condition. The request start path was changed to
check for the ring being full a bit earlier, and to stop the blk_queue if
there is no space left. The blk_queue will be restarted once the ring is
only half full again. The number of ring entries was increased to 512 which
matches the sunvnet and Solaris vdc drivers, and greatly reduces the
frequency of hitting the ring full condition and the associated blk_queue
stop/starting. The checks in sunvent were adjusted to account for
vio_dring_avail() returning 1 less.

Orabug: 19441666
OraBZ: 14983

Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-30 14:37:35 -07:00
..
3com 3c59x: avoid panic in boomerang_start_xmit when finding page address: 2014-09-05 17:24:02 -07:00
8390 PCI changes for the v3.17 merge window (part 2): 2014-08-14 18:10:33 -06:00
adaptec PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
adi bfin_mac: convert bfin Ethernet driver to NAPI framework 2014-07-24 23:35:42 -07:00
aeroflex greth: moved TX ring cleaning to NAPI rx poll func 2014-09-05 21:57:09 -07:00
allwinner net: sun4i-emac: fix memory leak on bad packet 2014-08-05 16:43:49 -07:00
alteon PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
altera Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-05-24 00:32:30 -04:00
amd amd-xgbe: Enable interrupts for all management counters 2014-09-05 22:37:30 -07:00
apm drivers: net: NET_XGENE should depend on HAS_DMA 2014-09-01 20:33:15 -07:00
apple
arc arc_emac: Remove unused pointer to net_device from arc_emac_priv 2014-07-09 16:49:21 -07:00
atheros PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
broadcom cnic : Cleanup CONFIG_IPV6 & VLAN check 2014-09-05 20:47:14 -07:00
brocade bna: Support TSO and partial checksum with non-accelerated vlans. 2014-08-25 17:27:09 -07:00
cadence net/macb: enable scatter-gather feature and set DMA burst length for sama5d4 gem 2014-07-24 23:39:55 -07:00
calxeda net: calxedaxgmac: fix driver dependencies 2014-09-02 13:23:25 -07:00
chelsio cxgb4: Issue mbox commands on correct mbox 2014-09-01 23:00:42 -07:00
cirrus cirrus: cs89x0: Use managed interfaces 2014-08-02 16:40:52 -07:00
cisco PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
davicom dm9000: Remove typedef board_info_t 2014-08-08 10:38:13 -07:00
dec PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
dlink PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
emulex PCI changes for the v3.17 merge window (part 2): 2014-08-14 18:10:33 -06:00
faraday net: get rid of SET_ETHTOOL_OPS 2014-05-13 17:43:20 -04:00
freescale net: fec: ptp: avoid register access when ipg clock is disabled 2014-08-22 10:45:56 -07:00
fujitsu drivers/net: ethernet: Remove typedef for struct and enum 2014-08-07 16:02:58 -07:00
hisilicon net: hisilicon: add hix5hd2 mac driver 2014-06-02 23:39:05 -07:00
hp PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
i825xx i825xx: Call dev_kfree_skb_any instead of dev_kfree_skb. 2014-03-24 21:19:02 -07:00
ibm ehea: Fix TSO and hw checksums with non-accelerated vlan packets. 2014-08-25 17:27:09 -07:00
icplus PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
intel i40evf: Fix TSO and hw checksums for non-accelerated vlan packets. 2014-08-25 17:27:09 -07:00
marvell mvneta: Add missing if_vlan.h include. 2014-08-25 20:21:55 -07:00
mellanox net/mlx4: Move the tunnel steering helper function to mlx4_core 2014-08-29 20:13:00 -07:00
micrel PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
microchip net: get rid of SET_ETHTOOL_OPS 2014-05-13 17:43:20 -04:00
moxa net: moxa: continue loop on skb allocation failure 2014-08-25 17:25:39 -07:00
myricom PCI changes for the v3.17 merge window (part 2): 2014-08-14 18:10:33 -06:00
natsemi PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
neterion PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
nuvoton
nvidia PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
nxp net: lpc_eth: Fix crash on ip link up 2014-09-02 13:21:55 -07:00
octeon octeon: remove deprecated syststamp timestamp 2014-07-29 11:39:49 -07:00
oki-semi PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
packetengines PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
pasemi PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
qlogic qlge: Fix TSO for non-accelerated vlan traffic 2014-08-25 17:27:10 -07:00
rdc PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
realtek PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
renesas net: sh_eth: fix driver dependencies 2014-09-02 13:23:25 -07:00
samsung net: sxgbe: remove duplicate SXGBE_CORE_L34_ADDCTL_REG define 2014-06-11 15:01:30 -07:00
seeq
sfc PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
sgi PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
silan PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
sis PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
smsc PCI changes for the v3.17 merge window (part 2): 2014-08-14 18:10:33 -06:00
stmicro stmmac: only remove RXCSUM feature if no rx coe is available 2014-09-01 21:51:29 -07:00
sun vio: fix reuse of vio_dring slot 2014-09-30 14:37:35 -07:00
tehuti PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
ti PCI changes for the v3.17 merge window (part 2): 2014-08-14 18:10:33 -06:00
tile net: set name_assign_type in alloc_netdev() 2014-07-15 16:12:48 -07:00
toshiba PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
tundra
via PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
wiznet net: w5100: Use devm_ioremap_resource() 2014-02-28 16:57:24 -05:00
xilinx net: xilinx: Remove .owner field for driver 2014-08-14 14:38:54 -07:00
xircom ethernet: amd: Remove typedef local_info_t 2014-08-11 12:19:53 -07:00
xscale net: ptp: move PTP classifier in its own file 2014-04-01 16:43:18 -04:00
dnet.c net: dnet: Use managed interfaces 2014-08-02 16:40:52 -07:00
dnet.h
ec_bhf.c driver/net/ethernet/ec_bhf.c: fix sparse warnings 2014-05-14 16:09:33 -04:00
ethoc.c net: ethoc: remove ethoc_config 2014-04-21 14:58:48 -04:00
fealnx.c PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
jme.c PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
jme.h
Kconfig drivers: net: Add APM X-Gene SoC ethernet driver support. 2014-08-11 11:50:33 -07:00
korina.c
lantiq_etop.c
Makefile drivers: net: Add APM X-Gene SoC ethernet driver support. 2014-08-11 11:50:33 -07:00
netx-eth.c
s6gmac.c