Commit Graph

184 Commits

Author SHA1 Message Date
Michal Schmidt
d119b39279 skge: fix occasional BUG during MTU change
The BUG_ON(skge->tx_ring.to_use != skge->tx_ring.to_clean) in skge_up()
was sometimes observed when setting MTU.

skge_down() disables the TX queue, but then reenables it by mistake via
skge_tx_clean().
Fix it by moving the waking of the queue from skge_tx_clean() to the
other caller. And to make sure start_xmit is not in progress on another
CPU, skge_down() should call netif_tx_disable().

The bug was reported to me by Jiri Jilek whose Debian system sometimes
failed to boot. He tested the patch and the bug did not happen anymore.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-14 15:16:55 -07:00
Yang Hongyang
284901a90a dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)
Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)

Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07 08:31:11 -07:00
Yang Hongyang
6a35528a83 dma-mapping: replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64)
Replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64)

Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07 08:31:10 -07:00
Ben Hutchings
288379f050 net: Remove redundant NAPI functions
Following the removal of the unused struct net_device * parameter from
the NAPI functions named *netif_rx_* in commit 908a7a1, they are
exactly equivalent to the corresponding *napi_* functions and are
therefore redundant.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:33:50 -08:00
Neil Horman
908a7a16b8 net: Remove unused netdev arg from some NAPI interfaces.
When the napi api was changed to separate its 1:1 binding to the net_device
struct, the netif_rx_[prep|schedule|complete] api failed to remove the now
vestigual net_device structure parameter.  This patch cleans up that api by
properly removing it..

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-22 20:43:12 -08:00
Stephen Hemminger
008298231a netdev: add more functions to netdevice ops
This patch moves neigh_setup and hard_start_xmit into the network device ops
structure. For bisection, fix all the previously converted drivers as well.
Bonding driver took the biggest hit on this.

Added a prefetch of the hard_start_xmit in the fast path to try and reduce
any impact this would have.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-20 20:14:53 -08:00
Stephen Hemminger
f80d032b5f skge: convert to net_device_ops
Convert to new network device ops interface.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-19 22:42:44 -08:00
David S. Miller
babcda74e9 drivers/net: Kill now superfluous ->last_rx stores.
The generic packet receive code takes care of setting
netdev->last_rx when necessary, for the sake of the
bonding ARP monitor.

Drivers need not do it any more.

Some cases had to be skipped over because the drivers
were making use of the ->last_rx value themselves.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-03 21:11:17 -08:00
Rafael J. Wysocki
5177b3240a skge: adapt skge to use reworked PCI PM
Adapt the skge driver to the reworked PCI PM

* Use device_set_wakeup_enable() and friends as needed
* Remove an open-coded reference to the standard PCI PM registers
* Use pci_prepare_to_sleep() and pci_back_from_sleep() in the
  ->suspend() and ->resume() callbacks
* Use the observation that it is sufficient to call pci_enable_wake()
  once, unless it fails

Tested on Asus L5D (Yukon-Lite rev 7).

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-10-31 00:52:17 -04:00
Johannes Berg
e174961ca1 net: convert print_mac to %pM
This converts pretty much everything to print_mac. There were
a few things that had conflicts which I have just dropped for
now, no harm done.

I've built an allyesconfig with this and looked at the files
that weren't built very carefully, but it's a huge patch.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-27 17:06:18 -07:00
Wang Chen
e824b3eb4a skge: Fix skge_set_ring_param() losing error return
The error return is useful to caller, driver shouldn't miss it.

Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08 16:02:40 -07:00
Xiaoming.Zhang
9ac1353f38 [10/21] driver/net/skge.c: restart the interface when it's options or
pauseparam is set

On Wednesday 24 September 2008 07:47, Stephen Hemminger wrote:
> On Mon, 22 Sep 2008 14:52:17 -0700
>
> akpm@linux-foundation.org wrote:
> > From: "Xiaoming.Zhang" <Xiaoming.Zhang@resilience.com>
> >
> > We have an issue of the skge driver: The card won't work when it's
> > options are changed.  Here's the hardware info:
> >
> > # lspci -v
> > 05:04.0 Ethernet controller: Marvell Technology Group Ltd. 88E8001
> > Gigabit Ethernet Controller (rev 13) Subsystem: Marvell Technology Group
> > Ltd. Marvell RDK-8001 Flags: bus master, 66MHz, medium devsel, latency
> > 32, IRQ 16 Memory at d042c000 (32-bit, non-prefetchable) [size=16K] I/O
> > ports at d000 [size=256]
> >         [virtual] Expansion ROM at 20400000 [disabled] [size=128K]
> >         Capabilities: [48] Power Management version 2
> >         Capabilities: [50] Vital Product Data
> >
> > The happens in both Linux-2.6.26(skge version 1.23) and RHEL5.2(skge
> > version 1.6).
> >
> > For example, at first it is set to "speed 1000 duplex full auto-neg on"
> > and it works, then run
> >
> >        ethtool -s <ethx> autoneg off
> > or     ethtool -s <ethx> speed 100 duplex full autoneg off
> >
> > Then it will stop working. After that if we restart the interface:
> >
> > 	ifconifg <ethx> down
> > 	ifconfig <ethx> up
> >
> > It will work again. And `ethtool -A' has the same issue.
> >
> > So we think after setting the options, the interface should be restarted.
> >
> > Signed-off-by: Zhang Xiaoming <xiaoming.zhang@resilience.com>
> > Cc: Stephen Hemminger <shemminger@vyatta.com>
> > Cc: Jeff Garzik <jeff@garzik.org>
> > Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
> > ---
> >
> >  drivers/net/skge.c |   12 ++++++++----
> >  1 file changed, 8 insertions(+), 4 deletions(-)
> >
> > diff -puN
> > drivers/net/skge.c~driver-net-skgec-restart-the-interface-when-its-option
> >s-or-pauseparam-is-set drivers/net/skge.c ---
> > a/drivers/net/skge.c~driver-net-skgec-restart-the-interface-when-its-opti
> >ons-or-pauseparam-is-set +++ a/drivers/net/skge.c
> > @@ -353,8 +353,10 @@ static int skge_set_settings(struct net_
> >  	skge->autoneg = ecmd->autoneg;
> >  	skge->advertising = ecmd->advertising;
> >
> > -	if (netif_running(dev))
> > -		skge_phy_reset(skge);
> > +	if (netif_running(dev)) {
> > +		skge_down(dev);
> > +		skge_up(dev);
> > +	}
> >
> >  	return (0);
> >  }
> > @@ -595,8 +597,10 @@ static int skge_set_pauseparam(struct ne
> >  			skge->flow_control = FLOW_MODE_NONE;
> >  	}
> >
> > -	if (netif_running(dev))
> > -		skge_phy_reset(skge);
> > +	if (netif_running(dev)) {
> > +		skge_down(dev);
> > +		skge_up(dev);
> > +	}
> >
> >  	return 0;
> >  }
>
> Since skge_up can fail because of out of memory, this code needs to
> check the return value. And then if it fails the "limbo state" needs
> to be handled in skge_down.

How about like this? It is tested.

Thank you.

Signed-off-by: Zhang Xiaoming <xiaoming.zhang@resilience.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08 16:00:57 -07:00
Jeff Garzik
f0c88f9c45 netxen, phy/marvell, skge: minor checkpatch fixes
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-03-25 23:53:24 -04:00
Marin Mitov
6ef2977d41 skge napi->poll() locking bug
According to: Documentation/networking/netdevices.txt:

<cite>
napi->poll:
..........
	Context: softirq
	         will be called with interrupts disabled by netconsole.
</cite>

napi->poll() could be called either with interrupts enabled
(in softirq context) or disabled (by netconsole), so the irq flag
should be preserved.

Inspired by Ingo's resent forcedeth patch :-)

Signed-off-by: Marin Mitov <mitov@issp.bas.bg>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25 23:42:06 -04:00
Stephen Hemminger
1a8098be98 skge: MTU changing fix
The code to change MTU doesn't correctly handle all the chip variations
and requirements for restarting.  On Genesis chips changing MTU would just
cause receiver to hang.
Use a simpler approach of just taking link down/up if needed.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-12-01 16:32:30 -05:00
Stephen Hemminger
44c7fccec4 skge: serial mode register values
For compatiablity with sk98lin, make sure and set same values
in serial mode register.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-12-01 16:32:30 -05:00
Stephen Hemminger
bf9f56d585 skge version 1.13
Version for 2.6.24

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-12-01 16:32:29 -05:00
Stephen Hemminger
485982a99a skge: increase TX threshold for Jumbo
Need to increase TX threshold when doing Jumbo frames on dual port board
to avoid underruns. (Code from sk98lin).

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-12-01 16:32:29 -05:00
Stephen Hemminger
21d7f67700 skge: fiber link up/down fix
The driver would not work over fibre if other end when down then
came back up (would require reloading driver). The correct way
to manage the link the same way for both TP and fibre.

Resloves problem described in: 	 http://lkml.org/lkml/2007/11/6/395

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-12-01 16:32:29 -05:00
Stephen Hemminger
799b21d2bd skge: retry on MAC shutdown
Make sure and retry when shutting down the MAC. This code is copied
from sk98lin driver.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-12-01 16:32:29 -05:00
Stephen Hemminger
d08b9bdf02 skge: receive flush logic
Receive FIFO overrun is not catastrophic condition, so don't flush when
it happens.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-12-01 16:32:29 -05:00
Stephen Hemminger
29816d9aa5 skge: FIFO Ram calculation error
The calculation of usable FIFO RAM is wrong in the skge driver.
First, is doesn't take into account the reserved area on the original
SysKonnect Genesis boards. Second it has an off-by-one error because
hw->ports is either 1 or 2.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-12-01 16:32:29 -05:00
Linus Torvalds
279e1dab94 Revert "skge: fix ram buffer size calculation"
This reverts commit 7fb7ac2411.

Heikki Orsila reports that it causes a regression:

  "Doing

	nc host port < /dev/zero

   on a sending machine (not skge) to an skge machine that is receiving:

	nc -l -p port >/dev/null

   with ~60 MiB/s speed, causes the interface go malfunct. A slow
   transfer doesn't cause a problem."

See

	http://bugzilla.kernel.org/show_bug.cgi?id=9321

for some more information.

There is a workaround (also reported by Heikki):

  "After some fiddling, I noticed that not changing the register write
   order on patch:

   +       skge_write32(hw, RB_ADDR(q, RB_END), end);
           skge_write32(hw, RB_ADDR(q, RB_WP), start);
           skge_write32(hw, RB_ADDR(q, RB_RP), start);
   -       skge_write32(hw, RB_ADDR(q, RB_END), end);

   fixes the visible effect..  Possibly not the root cause of the
   problem, but changing the order back fixes networking here."

but that has yet to be ack'ed or tested more widely, so the whole
problem-causing commit gets reverted until this is resolved properly.

Bisected-and-requested-by: Heikki Orsila <shdl@zakalwe.fi>
Cc: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-15 08:44:36 -08:00
Stephen Hemminger
d0cab89601 skge 1.12
version update

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-16 21:10:29 -04:00
Stephen Hemminger
678aa1f6ac skge: add a debug interface
Add a debugfs interface to look at internal ring state.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-16 21:10:29 -04:00
Stephen Hemminger
afa151b9b1 skge: eeprom support
Add ability to read/write EEPROM

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-16 21:10:28 -04:00
Stephen Hemminger
da00772fb5 skge: internal stats
Use internal stats structure

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-16 21:10:28 -04:00
Stephen Hemminger
501fb72d05 skge: XM PHY handling fixes
Change how PHY is managed on SysKonnect fibre based boards.
Poll for PHY coming up 1 per second, but use interrupt to detect loss.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-16 21:10:28 -04:00
Stephen Hemminger
60b24b5179 skge: changing MTU while running causes problems
Rather than bring network down/up when changing MTU,
only need to impact receiver.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-16 21:10:28 -04:00
Stephen Hemminger
7fb7ac2411 skge: fix ram buffer size calculation
This fixes problems with transmit hangs on older fiber based SysKonnect boards.

Adjust ram buffer sizing calculation to make it correct on all boards
and make it like the code in sky2 driver.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-16 21:10:28 -04:00
Jeff Garzik
b9f2c0440d [netdrvr] Stop using legacy hooks ->self_test_count, ->get_stats_count
These have been superceded by the new ->get_sset_count() hook.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:51:45 -07:00
Joe Perches
0795af5729 [NET]: Introduce and use print_mac() and DECLARE_MAC_BUF()
This is nicer than the MAC_FMT stuff.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:51:42 -07:00
Jeff Garzik
88d3aafdae [ETHTOOL] Provide default behaviors for a few ethtool sub-ioctls
For the operations
	get-tx-csum
	get-sg
	get-tso
	get-ufo
the default ethtool_op_xxx behavior is fine for all drivers, so we
permit op==NULL to imply the default behavior.

This provides a more uniform behavior across all drivers, eliminating
ethtool(8) "ioctl not supported" errors on older drivers that had
not been updated for the latest sub-ioctls.

The ethtool_op_xxx() functions are left exported, in case anyone
wishes to call them directly from a driver-private implementation --
a not-uncommon case.  Should an ethtool_op_xxx() helper remain unused
for a while, except by net/core/ethtool.c, we can un-export it at a
later date.

[ Resolved conflicts with set/get value ethtool patch... -DaveM ]

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:51:17 -07:00
Ralf Baechle
10d024c1b2 [NET]: Nuke SET_MODULE_OWNER macro.
It's been a useless no-op for long enough in 2.6 so I figured it's time to
remove it.  The number of people that could object because they're
maintaining unified 2.4 and 2.6 drivers is probably rather small.

[ Handled drivers added by netdev tree and some missed IRDA cases... -DaveM ]

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:51:13 -07:00
Stephen Hemminger
bea3348eef [NET]: Make NAPI polling independent of struct net_device objects.
Several devices have multiple independant RX queues per net
device, and some have a single interrupt doorbell for several
queues.

In either case, it's easier to support layouts like that if the
structure representing the poll is independant from the net
device itself.

The signature of the ->poll() call back goes from:

	int foo_poll(struct net_device *dev, int *budget)

to

	int foo_poll(struct napi_struct *napi, int budget)

The caller is returned the number of RX packets processed (or
the number of "NAPI credits" consumed if you want to get
abstract).  The callee no longer messes around bumping
dev->quota, *budget, etc. because that is all handled in the
caller upon return.

The napi_struct is to be embedded in the device driver private data
structures.

Furthermore, it is the driver's responsibility to disable all NAPI
instances in it's ->stop() device close handler.  Since the
napi_struct is privatized into the driver's private data structures,
only the driver knows how to get at all of the napi_struct instances
it may have per-device.

With lots of help and suggestions from Rusty Russell, Roland Dreier,
Michael Chan, Jeff Garzik, and Jamal Hadi Salim.

Bug fixes from Thomas Graf, Roland Dreier, Peter Zijlstra,
Joseph Fannin, Scott Wood, Hans J. Koch, and Michael Chan.

[ Ported to current tree and all drivers converted.  Integrated
  Stephen's follow-on kerneldoc additions, and restored poll_list
  handling to the old style to fix mutual exclusion issues.  -DaveM ]

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:47:45 -07:00
Matthew Wilcox
313674afa8 [NET]: ethtool_perm_addr only has one implementation
All drivers implement ethtool get_perm_addr the same way -- by calling
the generic function.  So we can inline the generic function into the
caller and avoid going through the drivers.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 14:00:29 -07:00
Stephen Hemminger
e3b7df17c8 skge: crash on shutdown/suspend
If device is not fails during module startup (like unsupported chip
version) then driver would crash dereferencing a null pointer, on shutdown
or suspend/resume.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-11 17:53:36 -04:00
Stephen Hemminger
5b982c5bb7 skge: default WOL should be magic only (rev2)
By default, the skge driver now enables wake on magic and wake on PHY.
This is a bad default (bug), wake on PHY means machine will never shutdown
if connected to a switch.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>a
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-09 19:25:15 -04:00
Stephen Hemminger
d17ecb23b2 skge: allow WOL except for known broken chips
Wake On Lan works correctly on Yukon-FE and other variants.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>a
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-08 01:15:15 -04:00
Stephen Hemminger
a5f8f3b6c9 skge: version 1.11
New version to track changes.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 11:01:00 -04:00
Stephen Hemminger
992c9623b1 skge: transmit locking improvements
Don't need to lock when processing transmit complete unless queue fills.
Modeled after tg3.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 11:01:00 -04:00
Arnaldo Carvalho de Melo
d626f62b11 [SK_BUFF]: Introduce skb_copy_from_linear_data{_offset}
To clearly state the intent of copying from linear sk_buffs, _offset being a
overly long variant but interesting for the sake of saving some bytes.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2007-04-25 22:28:23 -07:00
Arnaldo Carvalho de Melo
b0061ce49c [SK_BUFF]: Introduce ipip_hdr(), remove skb->h.ipiph
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:27 -07:00
Arnaldo Carvalho de Melo
ea2ae17d64 [SK_BUFF]: Introduce skb_transport_offset()
For the quite common 'skb->h.raw - skb->data' sequence.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:25:16 -07:00
Stephen Hemminger
692412b31f skge: fix wake on lan
Need to rework wake on lan code to setup properly and get activated
on shutdown (and suspend), not when ethtool is run.

This does not need to go to stable queue because wake on lan
was not even included in 2.6.20 (or earlier versions).

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-11 11:54:43 -04:00
Stephen Hemminger
e5b9ddd9a0 skge: turn carrier off when down
Driver needs to turn off carrier when down, otherwise it can
confuse bonding and bridging and looks like carrier is on immediately
when it is brought back up.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-11 11:54:42 -04:00
Stephen Hemminger
9cbe330f1f skge: use per-port phy locking
Rather than a workqueue and a per-board mutex to control PHY,
use a tasklet and spinlock. Tasklet is lower overhead and works
just as well for this.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-23 01:48:33 -04:00
Stephen Hemminger
4ebabfcb1d skge: mask irqs when device down
Wheen a port on the skge driver is not used, it should
mask off interrupts from theat port.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-23 01:48:33 -04:00
Stephen Hemminger
e3a1b99fb6 skge: deadlock on tx timeout
The skge driver will deadlock if gets a transmit timeout
because the netif_tx_lock() is already held.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-23 01:48:33 -04:00
Stephen Hemminger
2eb3e621c4 skge: set mac address bonding fix
When bonding does fail over it calls set_mac_address.  When this happens
as the result of another port going down, the phy_mutex that is common to
both ports is held, so it deadlocks. Setting the address doesn't need to do
anything that needs the phy_mutex, it already has the RTNL to protect against
other admin actions.

This change just disables the receiver to avoid any hardware confusion
while address is changing.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-15 10:44:32 -04:00