For patent issue need to remove TxStartThresh and RxEarlyThresh. This patent
is cut-through patent. If use this function, Tx will start to transmit after
few data be move in to Tx FIFO. We are not allow to use those function in
DFE530/DFE550/DFE580/DL10050/IP100/IP100A. It will decrease a little
performance.
Signed-off-by: Jesse Huang <jesse@icplus.com.tw>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Remove the code to change the E8390_CMD register from ei_watchdog().
The 8390-page is always 0 outside the spin_lock.
Signed-off-by: komurojun-mbn@nifty.com
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Add support for the new mcp67 device into forcedeth.
Signed-off-by: Ayaz Abdulla <aabdulla@nvidia.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This patch adds support to recover from a previously fatal MAC error. In
the past the MAC would be hung on an internal fatal error. On new
chipsets, the MAC has the ability to enter a non-fatal state and allow
the driver to re-init it.
Signed-Off-By: Ayaz Abdulla <aabdulla@nvidia.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This patch adds support for the mgmt unit in certain chipsets. The MAC
and the mgmt unit share the PHY and therefore proper intialization
procedures are needed for them to maintain coexistense.
Signed-Off-By: Ayaz Abdulla <aabdulla@nvidia.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
The PDQ DMA engine requires a different byte-swapping mode for big-endian
hosts; also the MAC address which is read from a register through PIO has
to be byte-swapped. These changes have been verified with DEFPA-DC (PCI)
boards and a Broadcom BCM91250A (MIPS CPU based) host.
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
hi,
replace open coded kmemdup() to save some screen space,
and allow inlining/not inlining to be triggered by gcc.
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Realtek's 8139/810x (0x8136) PCI-E comes with a touchy PHY.
A big heavy reset seems to calm it down.
Fix for http://bugzilla.kernel.org/show_bug.cgi?id=7378.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Darren Salt <linux@youmustbejoking.demon.co.uk>
Add a new dynamic itr algorithm, with 2 modes, and make it the default
operation mode. This greatly reduces latency and increases small packet
performance, at the "cost" of some CPU utilization. Bulk traffic
throughput is unaffected.
The driver can limit the amount of interrupts per second that the
adapter will generate for incoming packets. It does this by writing a
value to the adapter that is based on the maximum amount of interrupts
that the adapter will generate per second.
Setting InterruptThrottleRate to a value greater or equal to 100 will
program the adapter to send out a maximum of that many interrupts per
second, even if more packets have come in. This reduces interrupt
load on the system and can lower CPU utilization under heavy load,
but will increase latency as packets are not processed as quickly.
The default behaviour of the driver previously assumed a static
InterruptThrottleRate value of 8000, providing a good fallback value
for all traffic types,but lacking in small packet performance and
latency. The hardware can handle many more small packets per second
however, and for this reason an adaptive interrupt moderation algorithm
was implemented.
Since 7.3.x, the driver has two adaptive modes (setting 1 or 3) in
which it dynamically adjusts the InterruptThrottleRate value based on
the traffic that it receives. After determining the type of incoming
traffic in the last timeframe, it will adjust the InterruptThrottleRate
to an appropriate value for that traffic.
The algorithm classifies the incoming traffic every interval into
classes. Once the class is determined, the InterruptThrottleRate
value is adjusted to suit that traffic type the best. There are
three classes defined: "Bulk traffic", for large amounts of packets
of normal size; "Low latency", for small amounts of traffic and/or
a significant percentage of small packets; and "Lowest latency",
for almost completely small packets or minimal traffic.
In dynamic conservative mode, the InterruptThrottleRate value is
set to 4000 for traffic that falls in class "Bulk traffic". If
traffic falls in the "Low latency" or "Lowest latency" class, the
InterruptThrottleRate is increased stepwise to 20000. This default
mode is suitable for most applications.
For situations where low latency is vital such as cluster or
grid computing, the algorithm can reduce latency even more when
InterruptThrottleRate is set to mode 1. In this mode, which operates
the same as mode 3, the InterruptThrottleRate will be increased
stepwise to 70000 for traffic in class "Lowest latency".
Setting InterruptThrottleRate to 0 turns off any interrupt moderation
and may improve small packet latency, but is generally not suitable
for bulk throughput traffic.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Cc: Rick Jones <rick.jones2@hp.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Add a generic MSI interrupt routine that is IO read-free, speeding up
MSI interrupt handling.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
This file needs some cleanups and reordering - logically order it
so that relevant defines and code are together with properly quoted
defaults.
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Spec fix: don't set IDE unless we are actually setting the tx
int delay time.
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
ICH8 will soon be followed by newer chipsets bearing the same acronym,
thus we remove the '8' and make it independent of the version number in
the platform name.
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Add a netif_wake/start_queue counter to the ethtool statistics to indicated
to the user that their transmit ring could be too small for their workload.
Signed-off-by: Jesse brandeburg <jesse.brandeburg@intel.com>
Cc: Jamal Hadi <hadi@cyberus.ca>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Add support for a Low Profile quad-port PCI-E adapter and 2 variants
of the ICH8 systems' onboard NIC's.
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
This memsetting was added in a paranoid rage debugging TX hangs, but
are no longer of importance. We can beef up the performance quite a
bit removing them. Make sure to fill in next_to_watch to allow this.
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Order pci-e capability struct according to bus/pci bus width ordering
preserving the hard pci spec numbers.
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
On ich systems during PHY power down to D3, the voltage regulators
were left on.
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
IA64 SMP systems were seeing TX issues with multiple cpu's attempting
to write tail registers unordered. This mmiowb() fixes the issue.
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Enable early receives on 82573 for jumbo frame performance. Jumbo's
are only supported on 82573L with ASPM disabled.
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Enable TSO for IPV6. All e1000 hardware supports it. This reduces CPU
utilizations by 50% when transmitting IPv6 frames.
Fix symbol naming enabling ipv6 TSO. Turn off TSO6 for 10/100.
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Remove debugging code disabling MULR (multiple reads). It's not usable
for a wide audience and there are no known problems with MULR right
now.
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Tested by Newsome on IRC
zd1211 chip 0586:3401 v4330 high 00-13-49 AL2230_RF pa0 g---
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The current bcm43xx driver does not contain code to handle PCI-E interfaces
such as the BCM4311 and BCM4312. This patch, originally written by Stefano
Brivio adds the necessary code to enable these interfaces.
Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Output signal strength information as part of iwlist scan - before it did
not output any signal strength related information.
Signed-off-by: Holden Karau <holden@pigscanfly.ca>
Cc: Jean Tourrilhes <jt@hpl.hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
NET: prism54 - fix potential race in reset scheduling
There appears to be a race in reset scheduling logic - thread
responsible for reseting the interface should clear "reset
pending" flag before restarting the queue, otherwise timeout
handler might not schedule another reset even if it is needed.
This race is mostly theoretical as far as I can see but a race
nonetheless.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
NET: atmel - do not initialize array over and over again
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch adds a host_strip_iv_icv flag to ieee80211 which indicates that
ieee80211_rx should strip the IV/ICV/other security features from the payload.
This saves on some memmove() calls in the driver and seems like something that
belongs in the stack as it can be used by bcm43xx, ipw2200, and zd1211rw
I will submit the ipw2200 patch separately as it needs testing.
This patch also adds some sensible variable reuse (idx vs keyidx) in
ieee80211_rx
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The bcm43xx-softmac driver fails to set two quantities needed for
iwlist to compute wireless quality when scanning. As a result, userland
programs using the quality to determine the best connection fail.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The rest of 8390 conversions; ifdef cascade in 8390.h is gone now.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
more 8390 conversions - mac8390, zorro8390 and hydra got the same treatment
as arm etherh; one more case in 8390.h ifdef cascade is gone.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
etherh and a handful of other odd drivers use different macros when building
8390.c. Since we generate a single 8390.o and then link with it, in any
config with both oddball and normal 8390-based driver we will end up with
breakage in at least one of them. Solution: take most of 8390.c into
lib8390.c and have 8390.c, etherh.c and the rest of oddballs #include it.
Helper macros are taken from 8390.h to whoever includes lib8390.c. That
way odd drivers get separate instances of compiled 8390 stuff and stop
stepping on each other's toes. 8390.h gets cleaned up - we don't have
the cascade of ifdefs in there and are left with the stuff that can be
used by any 8390-based driver. Current problems are exactly because of
that cascade - we attempt to choose the set of helpers by looking at config
and that, of course, doesn't work well when we have several sets needed
by various drivers in our config.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Add MII ioctl support to the deprecated sk98lin driver.
This allows comparison with skge driver's PHY settings.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Add support for dumping the registers in the deprecated
sk98lin driver. This is allows for easier comparison with
settings in new skge driver.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
pci_module_init() convertion in olympic.c
Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This was spotted by coverity (cid #793). All callers dereference dev
before calling this functions, and we dereference it earlier in the
function, when initializing lp.
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>
Tobias Diedrich <ranma@tdiedrich.de> sayeth:
Vanilla forcedeth doesn't seem to support suspend and an ifdown/up-cycle is
needed to get it working again after suspend. Francois Romieu's "Awfully
experimental" patch is working just fine for me (with message signalled
interrupts disabled) and has survived quite a few suspend/resume cycles.
So I'd very much like to see (at least partial, with msi disabled)
suspend support for forcedeth in mainline.
(Addresses http://bugzilla.kernel.org/show_bug.cgi?id=6398)
Cc: Francois Romieu <romieu@fr.zoreil.com>
Cc; Jeff Garzik <jeff@garzik.org>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: Ayaz Abdulla <aabdulla@nvidia.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This patch fixes a couple of problems discovered with interrupt handling
in the phylib core, namely:
1. The driver uses timer and workqueue calls, but does not include
<linux/timer.h> nor <linux/workqueue.h>.
2. The driver uses schedule_work() for handling interrupts, but does not
make sure any pending work scheduled thus has been completed before
driver's structures get freed from memory. This is especially
important as interrupts may keep arriving if the line is shared with
another PHY.
The solution is to ignore phy_interrupt() calls if the reported device
has already been halted and calling flush_scheduled_work() from
phy_stop_interrupts() (but guarded with current_is_keventd() in case
the function has been called through keventd from the MAC device's
close call to avoid a deadlock on the netlink lock).
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
patch-mips-2.6.18-20060920-phy-irq-16
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This patch adds support for interrupt-driven operation of the Broadcom
Gigabit Ethernet PHYs. I have included device IDs for the parts used on
Broadcom SiByte evaluation boards; more can be added as a need arises.
They are apparently generally software-compatible with one another.
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
patch-mips-2.6.18-20060920-broadcom-phy-15
Signed-off-by: Jeff Garzik <jeff@garzik.org>
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6:
[PATCH] Fix an offset error when reading the CS89x0 ADD_PORT register
[PATCH] spidernet: poor network performance
[PATCH] Spidernet: remove ETH_ZLEN check in earlier patch
[PATCH] bonding: fix an oops when slave device does not provide get_stats
[PATCH] drivers/net: SAA9730: Fix build error
Revert "[PATCH] zd1211rw: Removed unneeded packed attributes"
[PATCH] zd1211rw: Fix of a locking bug
[PATCH] softmac: remove netif_tx_disable when scanning
[PATCH] ieee80211: Fix kernel panic when QoS is enabled
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: (103 commits)
usbcore: remove unused argument in autosuspend
USB: keep count of unsuspended children
USB hub: simplify remote-wakeup handling
USB: struct usb_device: change flag to bitflag
OHCI: make autostop conditional on CONFIG_PM
USB: Add autosuspend support to the hub driver
EHCI: Fix root-hub and port suspend/resume problems
USB: create a new thread for every USB device found during the probe sequence
USB: add driver for the USB debug devices
USB: added dynamic major number for USB endpoints
USB: pegasus error path not resetting task's state
USB: endianness fix for asix.c
USB: build the appledisplay driver
USB serial: replace kmalloc+memset with kzalloc
USB: hid-core: canonical defines for Apple USB device IDs
USB: idmouse cleanup
USB: make drivers/usb/core/driver.c:usb_device_match() static
USB: lh7a40x_udc remove double declaration
USB: pxa2xx_udc recognizes ixp425 rev b0 chip
usbtouchscreen: add support for DMC TSC-10/25 devices
...
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: (36 commits)
Driver core: show drivers in /sys/module/
Documentation/driver-model/platform.txt update/rewrite
Driver core: platform_driver_probe(), can save codespace
driver core: Use klist_remove() in device_move()
driver core: Introduce device_move(): move a device to a new parent.
Driver core: make drivers/base/core.c:setup_parent() static
driver core: Introduce device_find_child().
sysfs: sysfs_write_file() writes zero terminated data
cpu topology: consider sysfs_create_group return value
Driver core: Call platform_notify_remove later
ACPI: Change ACPI to use dev_archdata instead of firmware_data
Driver core: add dev_archdata to struct device
Driver core: convert sound core to use struct device
Driver core: change mem class_devices to be real devices
Driver core: convert fb code to use struct device
Driver core: convert firmware code to use struct device
Driver core: convert mmc code to use struct device
Driver core: convert ppdev code to use struct device
Driver core: convert PPP code to use struct device
Driver core: convert cpuid code to use struct device
...
Converts from using struct "class_device" to "struct device" making
everything show up properly in /sys/devices/ with symlinks from the
/sys/class directory.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Correct a problem seen on later kernels running the NetPIPE application.
Specifically, NetPIPE would begin running very slowly at the 1533 packet
size. It was determined that Spidernet slowed with an idle DMA engine.
Signed-off-by: James K Lewis <jklewis@us.ibm.com>
Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
In an earlier patch, code was added to pad packets that were less that
ETH_ZLEN (60) bytes using the skb_pad function. This has caused hangs when
accessing certain NFS mounted file systems. This patch removes the check
and solves the NFS problem. The driver, with this patch, has been tested
extensively. Please apply.
Signed-off-by: James K Lewis <jklewis@us.ibm.com>
Cc: Stephen Hemminger <shemminger@osdl.org>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Bonding driver unconditionnaly dereference get_stats function pointer
for each of its slave device. This patch
- adds a check for NULL dev->get_stats pointer in bond_get_stats
- prints a notice when the bonding device enslave a device without
get_stats function.
Signed-off-by: Laurent Riffard <laurent.riffard@free.fr>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Confusingly NET_PCI is also set for for non-PCI EISA configurations where
building this driver will result in a build error due to a reference to
pci_release_regions.
While at it, remove the EXPERIMENTAL - in all its uglyness and despite
the sincerest attempts of the buggy hardware the driver is known to work.
Also limit the driver to the Atlas board - the only known system to ever
use the SAA9730 before Phillips ended the short live of the SAA9730.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Fix various .c/.h typos in comments (no code changes).
Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Fix various Kconfig typos.
Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
This changes the type of variable "i" in rtl8169_init_one()
from "unsigned int" to "int". "i" is checked for < 0 later,
which can never happen for "unsigned". This results in broken
error handling.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This reverts commit 4e1bbd846d.
Quoth Daniel Drake <dsd@gentoo.org>:
"A user reported that commit 4e1bbd846d
(Remove unneeded packed attributes) breaks the zd1211rw driver on ARM."
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch fixes the bug as reported in the kernel bug tracker
under the id 7244. The bug was simply that the interrupt lock has
been locked outside an interrupt without blocking the interrupt.
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>
Looks like a broken masking to me, binary not is used where bitwise
not was intended.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sparse noticed a locking imbalance in tg3_open(). This patch adds an
unlock to one of the error paths, so that tg3_open() always exits
without the lock held.
Signed-off-by: Ira W. Snyder <kernel@irasnyder.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Due to hardware errata, TSO must be disabled if the PCI Express clock
request is enabled on 5906. The chip may hang when transmitting TSO
frames if CLKREQ is enabled.
Update version to 3.69.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Newer 5906 bootcode needs about 7ms to finish resetting so the poll
firmware loop was changed to maximum 20ms.
Signed-off-by: Gary Zambrano <zambrano@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
If the next descriptor array entry cannot be allocated by dev_alloc_skb(),
return immediately so it is not dereferenced later. We cannot register the
device with a partial descriptor list.
Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: David Rientjes <rientjes@cs.washington.edu>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
com20020.c needs to export functions if either of the ISA or PCI modules
are built as loadable modules. Or they could always be exported.
WARNING: "com20020_found" [drivers/net/arcnet/com20020-pci.ko] undefined!
WARNING: "com20020_check" [drivers/net/arcnet/com20020-pci.ko] undefined!
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Toralf Forster <toralf.foerster@gmx.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
The Coverity checker noted that these "if (err)"'s couldn't ever be
true.
It seems the intention was to check the return values of the
bcm43xx_pci_write_config32()'s?
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Drain the Microcode TX-status-FIFO before we enable IRQs.
This is required, because the FIFO may still have entries left
from a previous run. Those would immediately fire after enabling
IRQs and would lead to an oops in the DMA TXstatus handling code.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Use proper upper limits for the loops and check for all error
conditions.
The problem was noticed by Adrian Bunk.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As Patrick McHardy <kaber@trash.net> suggested, Traffic Shaper is now
obsolete and alternative to it is no longer CBQ, since its problems with
virtual devices, alter Kconfig text to reflect this -- put a link to the
traffic schedulers as a whole.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
e1000: Fix suspend/resume powerup and irq allocation
From: Auke Kok <auke-jan.h.kok@intel.com>
After 7.0.33/2.6.16, e1000 suspend/resume left the user with an enabled
device showing garbled statistics and undetermined irq allocation state,
where `ifconfig eth0 down` would display `trying to free already freed irq`.
Explicitly free and allocate irq as well as powerup the PHY during resume
fixes when needed.
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Through some experimentation with the similarly built bcm43xx I came to
the conclusion that if the hw/firmware sets a bit in the interrupt
register, an interrupt will only be raised if that bit is included in
the interrupt mask. Hence, the interrupt mask is more like an interrupt
control mask.
This patch changes the comment to reflect that.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
drivers/net/Kconfig says:
# All the following symbols are dependent on NETDEVICES - do not repeat
# that for each of the symbols.
so remove duplicate 'depends' uses of NETDEVICES.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This patch fixes 64k page support by using PAGE_MASK and appropriate pagesize defines in several places.
Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Removed define H_CB_ALIGNMENT which is already defined in include/asm-powerpc/hvcall.h
Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Fix: Must check for nullpointer before dereferencing it - not afterwards.
Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This fixes a bug reported in:
http://bugzilla.kernel.org/show_bug.cgi?id=7438
tg3_close() turns off the PHY if WoL and ASF are both disabled. On
the next tg3_open(), some devices such as the 5752M will not be
brought up correctly without a PHY reset early in the reset sequence.
The PHY clock is needed for some internal MAC blocks to function
correctly.
This problem is fixed by always resetting the PHY early in
tg3_reset_hw() when it is called from tg3_open() or tg3_resume().
tg3_setup_phy() can then be called later in the sequence without the
reset_phy parameter set to 1, since the PHY reset is already done.
Update version to 3.68.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The bcm43xx driver uses 4 locations in the devices sprom to determine
the behavior of the leds. Certain defaults are assigned if all bits are
set in those locations. On at least one BCM4303 chip, the sprom contains
values other than the default, which executes an assertion placed in the
default case of a following switch statement. This patch makes the leds
on the above mentioned interface behave correctly. In addition, it limits
the number of logged messages to 20 for the case of unexpected values in
the sprom locations.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This fixes a netdev watchdog timeout problem.
The software needs to call netif_tx_disable before running the
hardware calibration code. The problem condition can be shown by the
following timegraph.
|---5secs - ~10 jiffies time---|---|OOPS
^ ^
last real TX periodic work stops netif
At OOPS, the following happens:
The watchdog timer triggers, because the timeout of 5secs
is over. The watchdog first checks for stopped TX.
_Usually_ TX is only stopped from the TX handler to indicate
a full TX queue. But this is different. We need to stop TX here,
regardless of the TX queue state. So the watchdog recognizes
the stopped device and assumes it is stopped due to full
TX queues (Which is a _wrong_ assumption in this case). It then
tests how far the last TX has been in the past. If it's more than
5secs (which is the case for low or no traffic), it will fire
a TX timeout.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The length of the manfid CIS should be at least 4, and it's normally 4.
It's incorrect to require it to be at least 5. This breaks support for
most (if not all) cards.
The right place to ensure that we don't access beyond the CIS buffer is
to strengthen another check. Make sure that the next tuple begins at
least at the CIS buffer end (in which case we stop processing) or
before that.
Reported by ph35sm@free.fr
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The sky2 driver uses a single NAPI poll routine for both ports on dual ported
cards (because there is a single IRQ and status ring). Netpoll makes assumptions
about the relationship between network device and NAPI that aren't correct
on the second port, this will cause the port to never clear work.
Most systems, just have single port, so not a big issue.
The easy fix is just make the second port, not netpoll capable.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
I don't want my code to downgraded to GPLv3 because of
cut-n-pasted the comments. These files which I hold copyright
on were started before it was clear what GPLv3 was going to be.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Checks for NULL dev_alloc_skb() and returns on true to avoid subsequent
dereference.
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Christoph Hellwig <hch@infrared.org>
Signed-off-by: David Rientjes <rientjes@cs.washington.edu>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
No need to keep defining PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE
in the driver code since it is now defined in pci_ids.h.
Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
The sky2 driver is no longer in experimental state.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
modprobe n2 with no parameters or no such devices
will get confusing error message.
# modprobe n2
... Kernel does not have module support
This patch replaces return code from -ENOSYS to -EINVAL.
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
drivers/net/wan/n2.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
Signed-off-by: Jeff Garzik <jeff@garzik.org>
- Call platform_driver_unregister() before return when no cards found.
(fixes data corruption when no cards found)
- Check platform_device_register_simple() return value
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Mike Phillips <mikep@linuxtr.net>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
drivers/net/tokenring/proteon.c | 9 +++++++--
drivers/net/tokenring/skisa.c | 9 +++++++--
2 files changed, 14 insertions(+), 4 deletions(-)
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Flooding the console with error messages for every RX FIFO overrun,
checksum error and framing error isn't very sensible. Each of these
errors can occur during normal operation, so stop printk'ing error
messages for RX errors at all.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Ray Lehtiniemi reported that an incoming UDP packet flood can lock up
the ep93xx ethernet driver. Herbert Valerio Riedel noted that due to
the way ep93xx_eth manages the RX/TXstatus rings, it cannot distinguish
a full ring from an empty one, and correctly suggested that this was
likely to be causing this lockup to occur.
Instead of looking at the hardware's RX/TXstatus ring write pointers
to determine when to stop reading from those rings, we should just check
every individual RX/TXstatus descriptor's valid bit instead, since there
is no other way to distinguish an empty ring from a full ring, and if
there is a descriptor waiting, we take the hit of reading the descriptor
from memory anyway.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Jesse Huang