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linux/drivers/net/ethernet
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Carol L Soto c02b05011f net/mlx4: Copy/set only sizeof struct mlx4_eqe bytes 
When doing memcpy/memset of EQEs, we should use sizeof struct
mlx4_eqe as the base size and not caps.eqe_size which could be bigger.

If caps.eqe_size is bigger than the struct mlx4_eqe then we corrupt
data in the master context.

When using a 64 byte stride, the memcpy copied over 63 bytes to the
slave_eq structure.  This resulted in copying over the entire eqe of
interest, including its ownership bit -- and also 31 bytes of garbage
into the next WQE in the slave EQ -- which did NOT include the ownership
bit (and therefore had no impact).

However, once the stride is increased to 128, we are overwriting the
ownership bits of *three* eqes in the slave_eq struct.  This results
in an incorrect ownership bit for those eqes, which causes the eq to
seem to be full. The issue therefore surfaced only once 128-byte EQEs
started being used in SRIOV and (overarchitectures that have 128/256
byte cache-lines such as PPC) - e.g after commit 77507aa249
"net/mlx4_core: Enable CQE/EQE stride support".

Fixes: 08ff32352d ('mlx4: 64-byte CQE/EQE support')
Signed-off-by: Carol L Soto <clsoto@linux.vnet.ibm.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-27 20:27:11 -07:00
..
3com 3c59x: Add BQL support for 3c59x ethernet driver. 2015-08-24 12:20:58 -07:00
8390 drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
adaptec drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
adi drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
aeroflex net: greth: constify of_device_id array 2015-03-17 15:00:22 -04:00
agere drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
allwinner net: sun4i-emac: Properly free resources on probe failure and remove 2015-10-21 19:47:45 -07:00
alteon drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
altera net: eth: altera: Fix the initial device operstate 2015-09-09 12:10:15 -07:00
amd amd-xgbe: Fix race between access of desc and desc index 2015-10-27 19:49:22 -07:00
apm net: fix phy refcounting in a bunch of drivers 2015-09-24 23:04:53 -07:00
apple drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
arc net: arc: Fix module autoload for OF platform driver 2015-09-21 16:08:20 -07:00
atheros net: atl1c: add BQL support 2015-08-12 16:27:40 -07:00
broadcom bcm63xx_enet: check 1000BASE-T advertisement configuration 2015-10-21 06:36:38 -07:00
brocade bna: fix error handling 2015-09-29 13:49:53 -07:00
cadence Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-07-31 23:52:20 -07:00
calxeda ethernet: codespell comment spelling fixes 2015-03-08 22:54:22 -04:00
cavium net: thunderx: add missing of_node_put 2015-10-26 22:08:07 -07:00
chelsio cxgb4: add device ID for few T5 adapters 2015-09-17 16:24:51 -07:00
cirrus drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
cisco flow_dissector: Add flags argument to skb_flow_dissector functions 2015-09-01 15:06:22 -07:00
davicom dm9000: fix a typo 2015-09-08 22:44:42 -07:00
dec drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
dlink drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
emulex be2net: remove vlan promisc capability from VF's profile descriptors 2015-10-13 04:32:45 -07:00
ezchip NET: nps_enet: minor namespace cleanup 2015-08-23 16:08:54 -07:00
faraday drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
freescale gianfar: Fix Rx BSY error handling 2015-10-25 18:28:15 -07:00
fujitsu drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
hisilicon net: hisilicon: fix handling platform_get_irq result 2015-09-26 22:46:45 -07:00
hp drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
i825xx drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
ibm net/ibm/emac: bump version numbers for correct work with ethtool 2015-09-28 22:22:50 -07:00
icplus net: icplus: fix typo in constant name 2015-06-29 15:57:50 -07:00
intel i40e: fix annoying message 2015-10-22 18:06:18 -07:00
marvell net: mv643xx_eth: add missing of_node_put 2015-10-26 22:08:15 -07:00
mellanox net/mlx4: Copy/set only sizeof struct mlx4_eqe bytes 2015-10-27 20:27:11 -07:00
micrel net: ks8851: Export OF module alias information 2015-09-17 21:24:02 -07:00
microchip drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
moxa net: moxa: Fix module autoload for OF platform driver 2015-09-21 16:09:02 -07:00
myricom Minor merge needed, due to function move. 2015-07-01 10:49:25 -07:00
natsemi drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
neterion neterion: s2io: Use module_pci_driver 2015-07-09 00:19:00 -07:00
nuvoton drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
nvidia forcedeth: fix unilateral interrupt disabling in netpoll path 2015-10-27 19:45:23 -07:00
nxp net: lpc_eth: fix warnings caused by enabling unprepared clock 2015-10-05 03:41:12 -07:00
octeon netdev: octeon_mgmt: constify of_device_id array 2015-03-17 15:00:22 -04:00
oki-semi drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
packetengines drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
pasemi drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
qlogic qlcnic: track vxlan port count 2015-09-17 22:32:16 -07:00
qualcomm drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
rdc drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
realtek r8169: fix handling rtl_readphy result 2015-09-26 22:48:32 -07:00
renesas sh_eth: fix RX buffer size calculation 2015-10-26 18:32:16 -07:00
rocker rocker: use change upper info 2015-08-27 16:28:35 -07:00
samsung ethernet: codespell comment spelling fixes 2015-03-08 22:54:22 -04:00
seeq drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
sfc sfc: Allow driver to cope with a lower number of VIs than it needs for RSS 2015-08-28 13:53:47 -07:00
sgi drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
silan drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
sis sis900: Trivial: Fix typos in enums 2015-06-29 12:52:06 -07:00
smsc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-08-30 21:45:01 -07:00
stmicro net: stmmac: Use msleep rather then udelay for reset delay 2015-09-15 15:05:29 -07:00
sun sunvnet: Invoke SET_NETDEV_DEV() to set up the vdev in vnet_new() 2015-09-21 16:28:36 -07:00
synopsys ethernet: synopsys: SYNOPSYS_DWC_ETH_QOS should depend on HAS_DMA 2015-09-06 19:48:53 -07:00
tehuti drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
ti net: netcp: add missing of_node_put 2015-10-26 22:08:10 -07:00
tile nohz: Prevent tilegx network driver interrupts 2015-07-29 15:44:59 +02:00
toshiba drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
tundra drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
via via-rhine: fix VLAN receive handling regression. 2015-10-16 00:55:30 -07:00
wiznet drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
xilinx net: fix phy refcounting in a bunch of drivers 2015-09-24 23:04:53 -07:00
xircom drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
xscale drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
dnet.c
dnet.h
ec_bhf.c net: ec_bhf: Use module_pci_driver 2015-07-08 16:04:06 -07:00
ethoc.c net: ethoc: Remove unnecessary #ifdef CONFIG_OF 2015-09-09 14:16:05 -07:00
fealnx.c
jme.c net: jme: use kzalloc() instead of kmalloc+memset 2015-09-09 17:06:00 -07:00
jme.h
Kconfig dwc_eth_qos: Add the synopsys folder to the build system. 2015-07-28 23:55:00 -07:00
korina.c
lantiq_etop.c
Makefile Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-08-27 21:45:31 -07:00
netx-eth.c