Use hardware support for chained receive to break up large frames
into multiple pages. This avoids having to do a mult-page allocation
that can fail on a busy system due to fragmented memory.
For normal size MTU, this code behaves the same.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Use the netdevice transmit lock via netif_tx_lock rather than putting
lock in device specific code and using lockless transmit. The code is
cleaner using netif_tx_lock, and the performance is same.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Since a transmit can take several control blocks, the old code waited
until the last control block was marked as done. This code processes
the return values incrementally. This makes slots in the tx ring available
and less chance of getting stuck.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Use the ethernet device name when requesting the irq because the
irqbalance daemon looks for the name when deciding policy.
Better to play along with this dubious heuristic.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Workarounds for 88e806x chips from the vendor driver.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Use the standard pci capability mechanism to access PCI express error
registers, rather than hard coding the offset. Mask off the PCI express
error from ever occuring on non-PCI express systems.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Look at the registers correctly, when doing gigabit full duplex.
Need to look for link partner result.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
I neglected to properly update the version number in the recent
patch series; this sets it to something reasonable.
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
In file included from drivers/net/wan/pc300_tty.c:59:
drivers/net/wan/pc300.h:335: error: field 'pppdev' has incomplete type
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This patch removes accesses to the HDLC-internal data structures
from pc300 driver, thus enabling it to compile but breaking part
of its functionality.
Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This patch enables building of individual WAN protocol support
routines (parts of generic HDLC) as separate modules.
All protocol-private definitions are moved from hdlc.h file
to protocol drivers. User-space interface and interface
between generic HDLC and underlying low-level HDLC drivers
are unchanged.
Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
At enslavement time, the primary slave might not be activated if
there is already an active slave and the new slave is the primary.
Replaced complicated logic with a call to bond_select_active_slave(),
which does the right thing.
Fixes http://bugzilla.kernel.org/show_bug.cgi?id=6378
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Fixed handling of 802.3ad LACPDUs. Do not byte swap data in
place in the packet. Updated nomenclature of "__ntohs_lacpdu" to be
"htons"; it was previously used for both ntohs and htons operations, but
only called ntohs functions.
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Add logic to check ARP request / reply packets used for ARP
monitor link integrity checking.
The current method simply examines the slave device to see if it
has sent and received traffic; this can be fooled by extraneous traffic.
For example, if multiple hosts running bonding are behind a common
switch, the probe traffic from the multiple instances of bonding will
update the tx/rx times on each other's slave devices.
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
When a bonding netdevice is admin-ed down it loses the slaves
attributes (set via ifenslave). This is not consistent with other
behavior of netdevices (example a qdisc attached to a netdevice doesnt
disappear or an attached IP address etc).
The included patch fixes this. Ive tested by ifenslaving, downing the
bond, checking /proc and making sure it still has the slaves, up-ing the
bond and making sure things continue to work.
Jay/Bonding folks if you are ok with it, just ACK it or include it in
your tree etc. Otherwise we can discuss.
Acked-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Add priv_flag to specifically identify bonding-involved devices. Needed
because IFF_MASTER is an unreliable identifier (vlan interfaces above bonding
will inherit IFF_MASTER). Misidentification of devices would cause
notifier events for other devices to be erroneously processed by bonding,
causing various havoc.
Bug discovered by Martin Papik <martin.papik@ipsec.info>; this patch is
modified from his original.
Signed-off-by: Martin Papik <martin.papik@ipsec.info>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
The bonding driver fails to adjust its hard_header_len when enslaving
interfaces. Whenever an interface with a hard_header_len greater than the
ETH_HLEN default is enslaved, the potential for an oops exists, and if the
oops happens while responding to an arp request, for example, the system
panics. GIANFAR devices may use an extended hard_header for VLAN or
hardware checksumming. Enslaving such a device and then transmitting over
it causes a kernel panic.
Patch modified from submitter's original, but submitter agreed with this
patch in private email.
Signed-off-by: Mark Huth <mhuth@mvista.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Remove unneeded test for NULL. Reported by Thomas Dillig
<tdillig@stanford.edu> and Isil Dillig <isil@stanford.edu> via Stephen
Hemminger <shemminger@osdl.org>.
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Though link_failure_count is type unsigned int, this value is outputted to
/proc/net/bonding/bondX file using "%d" instead of "%u".
The attached patch fixes this problem.
Signed-off-by: Kenzo Iwami <k-iwami@cj.jp.nec.com>
Acked-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
The value of "downdelay/miimon" and "updelay/miimon" are stored in
slave->delay. The type of downdelay, updelay, and miimon are all int.
However, slave->delay is type short, and it is not possible to store the
value of "downdelay/miimon" or "updelay/miimon" in some cases. (For example,
miimon=1 downdelay=32768)
The attached patch fixes this problem.
Signed-off-by: Kenzo Iwami <k-iwami@cj.jp.nec.com>
Acked-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Allow channel bonding to enslave a 10 Gig adapter without errors.
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Acked-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Add support for older fiber versions of the SysKonnect board. These chipsets
use an internal PHY so they require special handling. The older sk98lin
driver already supported these
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
There seems to be a possible NULL pointer deref bug in
drivers/net/forcedeth.c::nv_loopback_test(). If dev_alloc_skb() fails, the
next line will call skb_put() with a NULL first argument which it'll then
try to deref - kaboom: a NULL pointer deref. Found by coverity (#1337).
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Cc: Ayaz Abdulla <aabdulla@nvidia.com>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: Stephen Hemminger <shemminger@osdl.org>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
While checking gcc 4.1 -Wextra warnings, I stumbled across the following
two warnings:
drivers/net/phy/phy_device.c:528: warning: comparison of unsigned expression < 0 is always false
drivers/net/phy/phy_device.c:546: warning: comparison of unsigned expression < 0 is always false
Since phy_read() returns an integer and can return negative values, it seems
to me the best way to get proper error handling working again is to make val
an int. Currently it is an u32, so the < 0 check always fails.
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Jes Sorensen <jes@trained-monkey.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
We need to specify a Versatile-specific SMC_IRQ_FLAGS value or the new
generic IRQ layer will complain thusly:
No IRQF_TRIGGER set_type function for IRQ 25 (<NULL>)
Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Nicolas Pitre <nico@cam.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Fixes section mismatch warnings when built as a module.
Also, mark find_ledma and sun4 init function as __devinit
too.
Signed-off-by: David S. Miller <davem@davemloft.net>
The setup for running long periodic work has a bug that leads to
netdev watchdog tx timeouts. This change eliminates the timeouts.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch includes a big cleanup of the existing unused LED code,
and adds support for controlling the LED.
The link LED will blink if the device is not associated. The LED
switches between 2 seconds on and 1 second off. If the device is
associated the LED is switched on.
The link LED also indicates packet TX. I do a little bit more led
resetting than the vendor driver, but the device works now as
expected for single LED and double LED devices.
Signed-off-by: Ulrich Kunitz <kune@deine-taler.de>
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
For housekeeping and watchdog tasks a workqueue is created. The
central workqueue is not used to prevent crashes creates by bugs.
It might be changed, when the housekeeping is stabilized.
Signed-off-by: Ulrich Kunitz <kune@deine-taler.de>
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Checking whether a mutex is not locked directly before
mutex_lock() is called, doesn't make sense. The whole point of
mutex_lock() is to block, if the mutex is locked.
Signed-off-by: Ulrich Kunitz <kune@deine-taler.de>
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Caused by the fact that physical control registers appear to have
only a width of 16 bit, 32-bit writes are not required.
Signed-off-by: Ulrich Kunitz <kune@deine-taler.de>
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
An error message is changed to a printk as the original dprintk
would be optimized away if debugging were not enabled. If the error
is triggered, a more meaningful message is returned.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
In bcm43xx-softmac, the bcm43xx_stats struct contains a variable that
is no longer used. In addition, two TODO entries related to noise
processing in bcm43xx_rx have been completed, and as unused one
is removed.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch updates the PHY initialization code for bcm43xx-softmac
to conform with recent changes in the clean-room specs at
http://bcm-specs.sipsolutions.net. Mostly, these changes implement
the sequence needed for chips with GPHY revision 8; however, the
patch also corrects a typo in one address, and some parts that were
missing from the spec when the initial coding was done.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Patch to make bcm43xx-softmac be compatible with the revised SSID
length of WE-21.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
