When the PMF flag is set, the driver can access the HW freely. When the
driver is unloaded, it should not access the HW. The problem caused fatal
errors when "ethtool -i" was called after the calling instance was unloaded
and another instance was already loaded
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The mv643xx_eth mii bus implementation uses wait_event_timeout() to
wait for SMI completion interrupts.
If wait_event_timeout() would return zero, mv643xx_eth would conclude
that the SMI access timed out, but this is not necessarily true --
wait_event_timeout() can also return zero in the case where the SMI
completion interrupt did happen in time but where it took longer than
the requested timeout for the process performing the SMI access to be
scheduled again. This would lead to occasional SMI access timeouts
when the system would be under heavy load.
The fix is to ignore the return value of wait_event_timeout(), and
to re-check the SMI done bit after wait_event_timeout() returns to
determine whether or not the SMI access timed out.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The bool kconfig option added to ixgbe and myri10ge for DCA is ambigous,
so this patch adds a description to the kconfig option.
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This reverts 51ac3beffd ('SMC91x: delete
unused local variable "lp"') and adds __maybe_unused markers to these
(potentially) unused variables.
The issue is that in some configurations SMC_IO_SHIFT evaluates
to '(lp->io_shift)', but in some others it's plain '0'.
Based upon a build failure report from Manuel Lauss.
Signed-off-by: David S. Miller <davem@davemloft.net>
dev_kfree_skb should not be called with irqs disabled, use dev_kfree_skb_irq
instead. The warning caused looks like this:
======================================================
[ INFO: hard-safe -> hard-unsafe lock order detected ]
2.6.28-rc1 #273
------------------------------------------------------
swapper/0 [HC0[0]:SC1[2]:HE0:SE0] is trying to acquire:
(clock-AF_INET){-..+}, at: [<4015c17c>] _sock_def_write_space+0x28/0xd8
and this task is already holding:
(&lp->lock){++..}, at: [<4013f230>] _smc911x_hard_start_xmit+0x30/0x4b8
which would create a new lock dependency:
(&lp->lock){++..} -> (clock-AF_INET){-..+}
Signed-off-by: Will Newton <will.newton@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
As noticed by Saikiran Madugula, commit 7447ef63cf
("loopback: Remove rest of LOOPBACK_TSO code.") got rid of
emulate_large_send_offload() but didn't get rid of the call
site as well.
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove excess kernel-doc function parameters from networking header
& driver files:
Warning(include/net/sock.h:946): Excess function parameter or struct member 'sk' description in 'sk_filter_release'
Warning(include/linux/netdevice.h:1545): Excess function parameter or struct member 'cpu' description in 'netif_tx_lock'
Warning(drivers/net/wan/z85230.c:712): Excess function parameter or struct member 'regs' description in 'z8530_interrupt'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Move SKB trim before we lookup the socket so we don't have to
put it on failure.
Based upon an initial patch by Jarek Poplawski and suggestions
from Herbert Xu.
Signed-off-by: David S. Miller <davem@davemloft.net>
The link may be up already via the chip's reset strapping, or though action
of U-Boot, or from the last time the interface was brought up. Resetting
the link causes it to go down for several seconds. This can significantly
increase the time from power-on to DHCP completion and a device being
accessible to the network.
Signed-off-by: Trent Piepho <tpiepho@freescale.com>
Acked-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The init_phy() function attaches to the PHY, then configures the
SerDes<->TBI link (in SGMII mode). The TBI is on the MDIO bus with the PHY
(sort of) and is accessed via the gianfar's MDIO registers, using the
functions gfar_local_mdio_read/write(), which don't do any locking.
The previously attached PHY will start a work-queue on a timer, and
probably an irq handler as well, which will talk to the PHY and thus use
the MDIO bus. This uses phy_read/write(), which have locking, but not
against the gfar_local_mdio versions.
The result is that PHY code will try to use the MDIO bus at the same time
as the SerDes setup code, corrupting the transfers.
Setting up the SerDes before attaching to the PHY will insure that there is
no race between the SerDes code and *our* PHY, but doesn't fix everything.
Typically the PHYs for all gianfar devices are on the same MDIO bus, which
is associated with the first gianfar device. This means that the first
gianfar's SerDes code could corrupt the MDIO transfers for a different
gianfar's PHY.
The lock used by phy_read/write() is contained in the mii_bus structure,
which is pointed to by the PHY. This is difficult to access from the
gianfar drivers, as there is no link between a gianfar device and the
mii_bus which shares the same MDIO registers. As far as the device layer
and drivers are concerned they are two unrelated devices (which happen to
share registers).
Generally all gianfar devices' PHYs will be on the bus associated with the
first gianfar. But this might not be the case, so simply locking the
gianfar's PHY's mii bus might not lock the mii bus that the SerDes setup
code is going to use.
We solve this by having the code that creates the gianfar platform device
look in the device tree for an mdio device that shares the gianfar's
registers. If one is found the ID of its platform device is saved in the
gianfar's platform data.
A new function in the gianfar mii code, gfar_get_miibus(), can use the bus
ID to search through the platform devices for a gianfar_mdio device with
the right ID. The platform device's driver data is the mii_bus structure,
which the SerDes setup code can use to lock the current bus.
Signed-off-by: Trent Piepho <tpiepho@freescale.com>
CC: Andy Fleming <afleming@freescale.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
When the at91_ether driver is using a GPIO for its PHY interrupt,
be sure to request (and later, if needed, free) that GPIO.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Commit 401c0aabec introduced a regression
in the atl1 driver by storing the VLAN tag in the wrong TX descriptor
field.
This patch causes the VLAN tag to be stored in its proper location.
Tested-by: Ramon Casellas <ramon.casellas@cttc.es>
Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Use mmiowb() to ensure "stop" and "go" commands are sent in order on ia64.
Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
A panic was discovered with bonding when using mode 5 or 6 and trying to
remove the slaves from the bond after the interface was taken down.
When calling 'ifconfig bond0 down' the following happens:
bond_close()
bond_alb_deinitialize()
tlb_deinitialize()
kfree(bond_info->tx_hashtbl)
bond_info->tx_hashtbl = NULL
Unfortunately if there are still slaves in the bond, when removing the
module the following happens:
bonding_exit()
bond_free_all()
bond_release_all()
bond_alb_deinit_slave()
tlb_clear_slave()
tx_hash_table = BOND_ALB_INFO(bond).tx_hashtbl
u32 next_index = tx_hash_table[index].next
As you might guess we panic when trying to access a few entries into the
table that no longer exists.
I experimented with several options (like moving the calls to
tlb_deinitialize somewhere else), but it really makes the most sense to
be part of the bond_close routine. It also didn't seem logical move
tlb_clear_slave around too much, so the simplest option seems to add a
check in tlb_clear_slave to make sure we haven't already wiped the
tx_hashtbl away before searching for all the non-existent hash-table
entries that used to point to the slave as the output interface.
Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch reworks the resource free logic performed at the time
a bonding device is released. This (a) closes two resource leaks, one
for workqueues and one for multicast lists, and (b) improves commonality
of code between the "destroy one" and "destroy all" paths by performing
final free activity via destructor instead of explicitly (and differently)
in each path.
"Sean E. Millichamp" <sean@bruenor.org> reported the workqueue
leak, and included a different patch.
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
During the rework of the mii monitor for:
commit f0c76d6177
Author: Jay Vosburgh <fubar@us.ibm.com>
Date: Wed Jul 2 18:21:58 2008 -0700
bonding: refactor mii monitor
I left out the increment of the link failure counter. This
patch corrects that omission.
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
We were setting RX_FILTER_BEACON even after entering STA mode,
which leads to a lot of unnecessary wakeups. This should fix the
bug "Ath5k driver has too many interrupts per second at idle" at
http://bugzilla.kernel.org/show_bug.cgi?id=11749.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Take care to handle register 0xa228 exactly as in the HAL released by
Atheros. This change is required to make ath5k work again on my system
since commit 2203d6be (ath5k: Misc hw_reset updates), thus fixing a
regression in 2.6.27 and therefore hopefully eligible for inclusion into
a stable release.
v2: Only overwrite initial register values on later revisions of AR5212
chips.
v3: Use standard macros to manipulate the register.
Signed-off-by: Elias Oltmanns <eo@nebensachen.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Make menuconfig RT2X00 a tristate instead of boolean,
otherwise we do not correctly inherit the mac80211 value
on which RT2X00 depends, and makes it possible to
compile rt2x00 into the kernel while mac80211 is a
module.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
If somebody sends an invalid beacon/probe response, that can trash the
whole BSS descriptor. The descriptor is, luckily, large enough so that
it cannot scribble past the end of it; it's well above 400 bytes long.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: stable@kernel.org [2.6.24-2.6.27, bug present in some form since driver was added (2.6.22)]
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg detected this two sparse warnings:
drivers/net/wireless/libertas/cmd.c:609:16: warning: cast to restricted __le16
drivers/net/wireless/libertas/cmd.c:611:16: warning: cast to restricted __le16
... but cmd.minlevel is "s8", so we can access it directly and hope
for the sign-extension-code in the compiler to convert that to the
"s16" type.
Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch fixes suspend to RAM after by moving
notify_mac out of iwlwifi mutex
http://bugzilla.kernel.org/show_bug.cgi?id=11845
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Tested-by: Carlos R. Mafra <crmafra2@gmail.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The amd8111e rx poll routine currently mishandles the case when we
process exactly the number of packets specified in the budget.
This patch is basically as suggested by David Miller.
Signed-off-by: Chris Friesen <cfriesen@nortel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
On Saturday 25 October 2008 10:24:10 Johannes Berg wrote:
> just FYI in case you haven't seen them. the p54 one looks like a genuine
> problem.
>
> drivers/net/wireless/p54/p54common.c: In function ‘p54_parse_eeprom’:
> drivers/net/wireless/p54/p54common.c:325: warning: ‘synth’ may be used uninitialized in this function
There you go. Yes, it is a genuine problem, if the device's eeprom is screwed really up.
Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
After a s2ram / resume cycle, resetting the key cache does not work
unless it is deferred until after the hardware has been reinitialised by
a call to ath5k_hw_reset(). This fixes a regression introduced by
"ath5k: fix suspend-related oops on rmmod".
Signed-off-by: Elias Oltmanns <eo@nebensachen.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch fixes a double-free error in p54pci
( http://bugzilla.kernel.org/show_bug.cgi?id=11782 )
Trying to free already-free IRQ 10
Pid: 108, comm: pccardd Not tainted 2.6.27-05577-g0cfd810-dirty #1
Call Trace:
[<c01265dc>] free_irq+0xad/0xb9
[<c01050dd>] dma_generic_alloc_coherent+0x0/0xd7
[<c01ba8e6>] p54p_stop+0x4a/0x1fa
[<c01050dd>] dma_generic_alloc_coherent+0x0/0xd7
[<c02348c5>] p54p_probe+0x23e/0x302
Tested-by: Sean Young
Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Implement set_mac_address for runtime mac address change.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch corrects a message bug in the via-velocity driver which
bothered me for some time.
The messages printed during device init look like the following:
[ 8.486422] eth%d: set value of parameter Wake On Lan options to 0
^^!
[ 8.487340] eth0: VIA Networking Velocity Family Gigabit Ethernet Adapter
Note the unresolved format string.
dev->name is unavailable before register_netdev, so use
dev_driver_string(&pdev->dev), which is also consistent with other
drivers.
"char *devname" parameters had to be converted to "const char *devname" to
be consistent with dev_driver_string return value.
Signed-off-by: Sven Hartge <sven@svenhartge.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The recent build fix for ibm_newemac has a typo in the config
option #ifdef used for disabling flow control. This corrects
it to the proper Kconfig option name.
Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
All kernel memory which is used for kernel/hardware data transfer must
be registered with firmware using "memory regions". 16GB hugepages
may not be part of a memory region due to firmware restrictions.
This patch modifies the walk_memory_resource callback fn to filter
hugepages and add only standard memory to the busmap which is later
on used for MR registration.
Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
We need to check the address that pci_alloc_consistent() returns since
it might fail.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This reverts commit 7bf6bf4803.
The code has both a short existence and an increasing track of failures
despite some work to amend it for -rc1. It is not just a matter of
reading the eeprom: sometimes the eeprom is read correctly, then the mac
address is not written correctly back into the mac registers.
Some chipsets seem to work reliably but it is not clear at this point if
the code can simply be made to work on a per-chipset basis and post -rc1
is not the place where I want to experiment these things.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (29 commits)
tcp: Restore ordering of TCP options for the sake of inter-operability
net: Fix disjunct computation of netdev features
sctp: Fix to handle SHUTDOWN in SHUTDOWN_RECEIVED state
sctp: Fix to handle SHUTDOWN in SHUTDOWN-PENDING state
sctp: Add check for the TSN field of the SHUTDOWN chunk
sctp: Drop ICMP packet too big message with MTU larger than current PMTU
p54: enable 2.4/5GHz spectrum by eeprom bits.
orinoco: reduce stack usage in firmware download path
ath5k: fix suspend-related oops on rmmod
[netdrvr] fec_mpc52xx: Implement polling, to make netconsole work.
qlge: Fix MSI/legacy single interrupt bug.
smc911x: Make the driver safer on SMP
smc911x: Add IRQ polarity configuration
smc911x: Allow Kconfig dependency on ARM
sis190: add identifier for Atheros AR8021 PHY
8139x: reduce message severity on driver overlap
igb: add IGB_DCA instead of selecting INTEL_IOATDMA
igb: fix tx data corruption with transition to L0s on 82575
ehea: Fix memory hotplug support
netdev: DM9000: remove BLACKFIN hacking in DM9000 netdev driver
...
* git://git.kernel.org/pub/scm/linux/kernel/git/czankel/xtensa-2.6:
xtensa: Add config files for Diamond 232L - Rev B processor variant
xtensa: Fix io regions
xtensa: Add support for the Sonic Ethernet device for the XT2000 board.
xtensa: replace remaining __FUNCTION__ occurrences
xtensa: use newer __SPIN_LOCK_UNLOCKED macro
XTENSA: warn about including <asm/rwsem.h> directly.
* git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (53 commits)
powerpc: Support for relocatable kdump kernel
powerpc: Don't use a 16G page if beyond mem= limits
powerpc: Add del_node() for early boot code to prune inapplicable devices.
powerpc: Further compile fixup for STRICT_MM_TYPECHECKS
powerpc: Remove empty #else from signal_64.c
powerpc: Move memory size print into common show_cpuinfo for 32-bit
hvc_console: Remove __devexit annotation of hvc_remove()
hvc_console: Add support for tty window resizing
hvc_console: Fix loop if put_char() returns 0
hvc_console: Add tty driver flag TTY_DRIVER_RESET_TERMIOS
hvc_console: Add a hangup notifier for backends
powerpc/83xx: Add DS1339 RTC support for MPC8349E-mITX boards .dts
powerpc/83xx: Add support for MCU microcontroller in .dts files
powerpc/85xx: Move mpc8572ds.dts to address-cells/size-cells = <2>
of/spi: Support specifying chip select as active high via device tree
powerpc: Remove device_type = "board_control" properties in .dts files
i2c-cpm: Suppress autoprobing for devices
powerpc/85xx: Fix mpc8536ds dma interrupt numbers
powerpc/85xx: Enable enhanced functions for 8536 TSEC
powerpc: Delete unused prom_strtoul and prom_memparse
...
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/ehca: Reject dynamic memory add/remove when ehca adapter is present
IB/ehca: Fix reported max number of QPs and CQs in systems with >1 adapter
IPoIB: Set netdev offload features properly for child (VLAN) interfaces
IPoIB: Clean up ethtool support
mlx4_core: Add Ethernet PCI device IDs
mlx4_en: Add driver for Mellanox ConnectX 10GbE NIC
mlx4_core: Multiple port type support
mlx4_core: Ethernet MAC/VLAN management
mlx4_core: Get ethernet MTU and default address from firmware
mlx4_core: Support multiple pre-reserved QP regions
Update NetEffect maintainer emails to Intel emails
RDMA/cxgb3: Remove cmid reference on tid allocation failures
IB/mad: Use krealloc() to resize snoop table
IPoIB: Always initialize poll_timer to avoid crash on unload
IB/ehca: Don't allow creating UC QP with SRQ
mlx4_core: Add QP range reservation support
RDMA/ucma: Test ucma_alloc_multicast() return against NULL, not with IS_ERR()
My change
commit e2a6b85247
net: Enable TSO if supported by at least one device
didn't do what was intended because the netdev_compute_features
function was designed for conjunctions. So what happened was that
it would simply take the TSO status of the last constituent device.
This patch extends it to support both conjunctions and disjunctions
under the new name of netdev_increment_features.
It also adds a new function netdev_fix_features which does the
sanity checking that usually occurs upon registration. This ensures
that the computation doesn't result in an illegal combination
since this checking is absent when the change is initiated via
ethtool.
The two users of netdev_compute_features have been converted.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
