Bruce Allan bdc125f73f e1000e: 82579 potential system hang on stress when ME enabled ... Previously, a workaround was added to address a hardware bug in the PCIm2PCI arbiter where a write by the driver of the Transmit/Receive Descriptor Tail register could happen concurrently with a write of any MAC CSR register by the Manageability Engine (ME) which could cause the Tail register to have an incorrect value. The arbiter is supposed to prevent the concurrent writes but there is a bug that can cause the Host (driver) access to be acknowledged later than it should. After further investigation, it was discovered that a driver write access of any MAC CSR register after being idle for some time can be lost when ME is accessing a MAC CSR register. When this happens, no further target access is claimed by the MAC which could hang the system. The workaround to check bit 24 in the FWSM register (set only when ME is accessing a MAC CSR register) and delay for a limited amount of time until it is cleared is now done for all driver writes of MAC CSR registers on 82579 with ME enabled. In the rare case when the driver is writing the Tail register and ME is accessing any MAC CSR register for a duration longer than the maximum delay, write the register and verify it has the correct value before continuing, otherwise reset the device. This patch also moves some pre-existing macros from the hardware-specific header file to the more appropriate generic driver header file. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>		2012-04-27 02:25:13 -07:00
..
3com	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
8390	8390: select CRC32 support	2012-04-21 15:28:47 -04:00
adaptec	starfire: remove deprecated options.	2012-04-07 11:45:26 +02:00
adi	bfin: Fix build failure due to get_ts_info() changes.	2012-04-06 00:17:50 -04:00
aeroflex	ethernet: unify return value of .ndo_set_mac_address if address is invalid	2012-02-23 17:03:20 -05:00
alteon	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
amd	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
apple	netdev: ethernet dev_alloc_skb to netdev_alloc_skb	2012-02-08 18:46:38 -05:00
atheros	atl1c: refine start/enable code for MAC module	2012-04-26 05:03:33 -04:00
broadcom	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-04-23 23:15:17 -04:00
brocade	bna: Update driver version to 3.0.23.0	2012-04-04 18:19:18 -04:00
cadence	macb: Support the get_ts_info ethtool method.	2012-04-04 05:28:47 -04:00
calxeda	net: use eth_hw_addr_random() and reset addr_assign_type	2012-02-15 15:34:17 -05:00
chelsio	simple_open: automatically convert to simple_open()	2012-04-05 15:25:50 -07:00
cirrus	Disintegrate and delete asm/system.h	2012-03-28 15:58:21 -07:00
cisco	enic: replace open-coded ARRAY_SIZE with macro	2012-04-13 13:15:14 -04:00
davicom	net: replace random_ether_addr() with eth_hw_addr_random()	2012-02-15 15:34:16 -05:00
dec	dmfe: enforce consistent timing delay.	2012-04-17 22:54:13 -04:00
dlink	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-04-10 14:30:45 -04:00
emulex	be2net: update the driver version	2012-04-27 00:03:36 -04:00
faraday	net: replace random_ether_addr() with eth_hw_addr_random()	2012-02-15 15:34:16 -05:00
freescale	gianfar: add GRO support	2012-04-21 16:43:34 -04:00
fujitsu	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
hp	netdev: ethernet dev_alloc_skb to netdev_alloc_skb	2012-02-06 11:52:27 -05:00
i825xx	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
ibm	powerpc+sparc/vio: Modernize driver registration	2012-03-28 11:33:24 +11:00
icplus	netdev: ethernet dev_alloc_skb to netdev_alloc_skb	2012-02-06 11:52:27 -05:00
intel	e1000e: 82579 potential system hang on stress when ME enabled	2012-04-27 02:25:13 -07:00
marvell	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-04-10 14:30:45 -04:00
mellanox	mlx4_en: Byte Queue Limit support	2012-04-23 22:34:02 -04:00
micrel	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-04-23 23:15:17 -04:00
microchip	net: use eth_hw_addr_random() and reset addr_assign_type	2012-02-15 15:34:17 -05:00
myricom	myri10ge: stop using net_device.{base_addr, irq}.	2012-04-07 11:58:09 +02:00
natsemi	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-04-10 14:30:45 -04:00
neterion	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-04-10 14:30:45 -04:00
nuvoton	netdev: ethernet dev_alloc_skb to netdev_alloc_skb	2012-02-08 18:46:38 -05:00
nvidia	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-04-10 14:30:45 -04:00
nxp	net: lpc_eth: no need to reserve 8 extra bytes in rx skb	2012-04-04 18:08:49 -04:00
octeon	octeon: fix PHY name to match MDIO bus name	2012-02-13 16:04:09 -05:00
oki-semi	pch_gbe: remove suspicious comment	2012-04-21 15:27:45 -04:00
packetengines	yellowfin: stop using net_device.{base_addr, irq}.	2012-04-07 11:45:26 +02:00
pasemi	ethernet: unify return value of .ndo_set_mac_address if address is invalid	2012-02-23 17:03:20 -05:00
qlogic	qlcnic: Allow a predefined set of capture masks for FW dump	2012-04-27 00:03:35 -04:00
racal	netdev: ethernet dev_alloc_skb to netdev_alloc_skb	2012-02-08 18:46:38 -05:00
rdc	r6040: update copyright from 2007 to now	2012-04-12 16:06:24 -04:00
realtek	r8169: support the new RTL8411 chip.	2012-04-17 11:22:41 +02:00
renesas	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-04-10 14:30:45 -04:00
seeq	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
sfc	MTD merge for 3.4	2012-03-30 17:31:56 -07:00
sgi	net: meth: Add set_rx_mode hook to fix ICMPv6 neighbor discovery	2011-12-27 13:17:34 -05:00
silan	sc92031: stop using net_device.{base_addr, irq}	2012-04-07 11:45:27 +02:00
sis	sis900: stop using net_device.{base_addr, irq} and convert to __iomem.	2012-04-07 11:47:18 +02:00
smsc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-04-23 23:15:17 -04:00
stmicro	stmmac: do not fail when probe and there is no csr clk defined	2012-04-19 20:09:06 -04:00
sun	sungem: use mdelay instead of udelay where necessary	2012-04-21 15:28:48 -04:00
tehuti	net: Fix spelling typo in net	2012-04-14 15:29:02 -04:00
ti	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-04-23 23:15:17 -04:00
tile	drivers/net/ethernet/tile: fix netdev_alloc_skb() bombing	2012-04-02 13:17:37 -04:00
toshiba	net: replace random_ether_addr() with eth_hw_addr_random()	2012-02-15 15:34:16 -05:00
tundra	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
via	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-04-10 14:30:45 -04:00
wiznet	net: WIZnet drivers: fix possible NULL dereference	2012-04-13 13:34:12 -04:00
xilinx	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-04-15 13:19:04 -04:00
xircom	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
xscale	net: remove ixp2000 ethernet driver	2012-04-04 18:09:37 -04:00
dnet.c	dnet: Support the get_ts_info ethtool method.	2012-04-04 05:28:46 -04:00
dnet.h
ethoc.c	ethoc: set addr_assign_type if random_ether_addr() used	2012-02-17 15:58:06 -05:00
fealnx.c	fealnx: Remove unused local label 'out' in netdev_open().	2012-04-07 09:02:32 -04:00
jme.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-02-26 21:55:51 -05:00
jme.h	jme: Fix FIFO flush issue	2012-02-22 14:44:41 -05:00
Kconfig	Ethernet driver for the WIZnet W5300 chip	2012-04-05 01:43:02 -04:00
korina.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
lantiq_etop.c	ethernet: Fix typo in lantiq_etop.c	2012-02-19 19:02:42 -05:00
Makefile	Ethernet driver for the WIZnet W5300 chip	2012-04-05 01:43:02 -04:00
mipsnet.c	net: replace random_ether_addr() with eth_hw_addr_random()	2012-02-15 15:34:16 -05:00
netx-eth.c	netdev: ethernet dev_alloc_skb to netdev_alloc_skb	2012-02-08 18:46:38 -05:00
s6gmac.c	ethernet: replace open-coded ARRAY_SIZE with macro	2012-04-13 13:15:14 -04:00