We were not checking the return value of get_speed_and_duplex
properly, whih may contain an error value.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

M88 rev 2 PHY needs a longer downshift to function properly. This adds
a much longer downshift counter for this specific device.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

Several e1000 adapters were not blinking correctly or inconsistently. This
patch cleans this up and makes them all behave the same as far as possible.
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

CRC stripping is breaking SMBUS-connected BMC's. We disable this
feature to make it work. This fixes related bugs regarding SOL.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

A certain AMD64 bridge (8132) has an option to turn on write combining
which breaks our adapter. To circumvent this we need to flush every write.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

We can take uninitialized values into account which minimizes code
and allows us to simplify the parameter checking code greatly.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

Recycle an skb to improve performance a bit.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

Changing a printk message to make clear that this message is originating
from e1000.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

Smart Power Down is a power saving feature in newer e1000 hardware. We
disable it because it causes time to link to be long, but make it a
user choice.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

buffer_info is already filled at the end of this while() loop.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

e1000_suspend is called even when !CONFIG_PM. The non-PM code inside of it
is properly #ifdef'd. This fixes the compiler warnings when !CONFIG_PM.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

In relation to the irq work done earlier we also move the PHY powerup
and powerdown functions into separate functions and move the calls to
_close and _open, making the PHY stay in it's power state as long as
the device is _up.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

After studying the driver mac reset code it was found that there
were multiple race conditions possible to reset the unit twice or
bring it e1000_up() double. This fixes all occurences where the
driver needs to reset the mac.

We also remove irq requesting/releasing into _open and _close so
that while the device is _up we will never touch the irq's. This fixes
the double free irq bug that people saw.

To make sure that the watchdog task doesn't cause another race we let
it run as a non-scheduled task.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

Ethtool was reporting that loopback failed randomly on esb2
systems. Upon study it was found that the phy manual was changed
with respect to the loopback mode bits. The new value fixes it.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

If a PCI bus error/fault triggers a PCI bus reset, attempts to get the
ethernet packet count statistics from the hardware will fail, returning
garbage data upstream.  This patch skips statistics data collection if the
PCI device is not on the bus.

This patch presumes that an earlier patch,
[PATCH] PCI Error Recovery: e1000 network device driver
has already been applied.
Signed-off-by: NLinas Vepstas <linas@austin.ibm.com>
Cc: John Ronciak <john.ronciak@intel.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

If a PCI bus error/fault triggers a PCI bus reset, attempts to get
the ethernet packet count statistics from the hardware will fail,
returning garbage data upstream.  This patch skips statistics data
collection if the PCI device is not on the bus.
Signed-off-by: NLinas Vepstas <linas@austin.ibm.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Acked-by: NAuke Kok <auke-jan.h.kok@intel.com>

Various PCI bus errors can be signaled by newer PCI controllers.
This patch adds the PCI error recovery callbacks to the intel gigabit
ethernet e1000 device driver. The patch has been tested, and appears
to work well.
Signed-off-by: NLinas Vepstas <linas@linas.org>
Acked-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

It was brought to our attention that the prefetches break e1000 traffic
on xscale/arm architectures.  Remove them for now.  We'll let them
stay in mm for a while, or find a better solution to enable.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

New code added in 2.6.17 caused setup_irq to print a warning when
running ethtool -t eth0 offline.

This test marks the request_irq call made by this test as a "probe"
to see if the interrupt is shared or not.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

Someone was waaay too aggressive and removed e1000's reboot notifier
instead of porting it to the new way of the shutdown handler.  This change
broke wake on lan.  Add the shutdown handler back in using the same method
as e100 uses.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

(cherry picked from c653e635 commit)

Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com>
Cc: "Ronciak, John" <john.ronciak@intel.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: NAuke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

Signed-off-by: NAuke Kok <auke.jan.h.kok@intel.com>

This honours the request to remove the changelog in the driver code.
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

I forgot to update the date string in the Makefile last time.
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

Some leading and trailing whitespace made it into the driver code here.
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

This removes unwanted characters in the debug output that should have
never been there.
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

Someone was waaay too aggressive and removed e1000's reboot notifier
instead of porting it to the new way of the shutdown handler.  This change
broke wake on lan.  Add the shutdown handler back in using the same method
as e100 uses.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

Update skb with the real packet size.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: NJohn Ronciak <john.ronciak@intel.com>

Seems there was a bit of a fix needed to due a bad merge in the legacy
receive path.  Fixes a panic due to skb_over_panic.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

Recent patch was mismerged in the miitool path. e1000_media_type_copper
was being compared with the phy type instead of the media type.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

Add the sourceforge project mailinglist to the contact information.

Bump version to 7.0.38-k2

Update copyright string with the new year.
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: NJohn Ronciak <john.ronciak@intel.com>

Implement more efficient locking (avoid the lock) when checking for
a stopped queue.  Also don't wake the queue unless the threshold is
reached to avoid queue on/off thrash.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: NJohn Ronciak <john.ronciak@intel.com>

Remove multi-descriptor support from legacy recieve path

Add memory usage efficiency by using more correct size descriptors for
small MTU sizes and optimize using LPE for <= 1522 byte frame sizes

An extra performance fix that effected our TCP window size growth
as a receiver.  Set our initial buffer to be 128 bytes instead of 256
to prevent over-socket charge when truesize is computed in the stack.
old way: truesize = 256 + l1 = 256 + 1460 = 1716
new way: truesize = 128 + l1 = 128 + 1460 = 1588
The magic value that we can't cross is 1648.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: NJohn Ronciak <john.ronciak@intel.com>

Removal of unused rx_dropped counter.

Removed reference to E1000_CTRL_EXT_CANC which is no longer valid,
replaced with E1000_CTRL_EXT_INT_TIMER_CLR
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: NJohn Ronciak <john.ronciak@intel.com>

Update skb with the real packet size.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: NJohn Ronciak <john.ronciak@intel.com>

Made an adapter struct variable into a local (txb2b)
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: NJohn Ronciak <john.ronciak@intel.com>

De-inline functions to benefit from compiler smartness
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: NJohn Ronciak <john.ronciak@intel.com>

Esb2 link didn't return after wol disable. The code previously assumed
that writing reset to PHY_CTRL phy register turned the phy back on.
In the ESB2 phy case that didn't occur.

Add ESB2 to acquire/release_hw functions upon review it was
discovered that esb2 was skipped on these functions
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: NJohn Ronciak <john.ronciak@intel.com>

remove DPRINTKs that were printing warnings about power management on
2.4 kernels.  Since we really don't react differently these printk
statements are not needed.  This code was originally added to fix
some compile time warnings that got fixed by newer kernels.
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: NJohn Ronciak <john.ronciak@intel.com>

this changes if() BUG(); constructs to BUG_ON() which is
cleaner, contains unlikely() and can better optimized away.
Signed-off-by: NEric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: NAdrian Bunk <bunk@stusta.de>