Commit Graph

170 Commits

Author SHA1 Message Date
Andy Fleming
761ed01b35 gianfar: Wait for both RX and TX to stop
When gracefully stopping the controller, the driver was continuing if
*either* RX or TX had stopped.  We need to wait for both, or the
controller could get into an invalid state.

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 16:43:31 -07:00
Anton Vorontsov
7ce97d4f78 gianfar: Fix potential oops during OF address translation
gianfar driver may pass NULL pointer to the of_translate_address(),
which may lead to a kernel oops. Fix this by using of_iomap(), which
is also much simpler and shorter.

Signed-off-by: Anton Vorontsov <avorontsov@mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-23 16:20:25 -07:00
Kim Phillips
ddc01b3b8a net: gianfar - align BD ring size console messages
fix this:

eth2: :RX BD ring size for Q[0]: 256
eth2:TX BD ring size for Q[0]: 256

to look like:

eth2: RX BD ring size for Q[0]: 256
eth2: TX BD ring size for Q[0]: 256

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-30 23:03:18 -07:00
Kim Phillips
ed130589d9 net: gianfar - initialize per-queue statistics
Interfaces come up claiming having already received 3.0 GiB.
Use kzalloc to properly initialize per-queue data.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-30 23:03:17 -07:00
Andy Fleming
7c0d10d35f gianfar: Fix a memory leak in gianfar close code
gianfar needed to ensure existence of the *skbuff arrays before
freeing the skbs in them, rather than ensuring their nonexistence.

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-30 23:03:16 -07:00
Ben Menchaca
a6d36d5689 gianfar: fix undo of reserve()
Fix undo of reserve() before RX recycle

gfar_new_skb reserve()s space in the SKB to align it.  If an error occurs,
and the skb needs to be returned to the RX recycle queue, the current code
attempts to reset head, but did not reset tail.  This patch remembers the
alignment amount, and reverses the reserve() when needed.

Signed-off-by: Ben Menchaca <ben@bigfootnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-26 20:16:23 -07:00
Linus Torvalds
d89b218b80 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (108 commits)
  bridge: ensure to unlock in error path in br_multicast_query().
  drivers/net/tulip/eeprom.c: fix bogus "(null)" in tulip init messages
  sky2: Avoid rtnl_unlock without rtnl_lock
  ipv6: Send netlink notification when DAD fails
  drivers/net/tg3.c: change the field used with the TG3_FLAG_10_100_ONLY constant
  ipconfig: Handle devices which take some time to come up.
  mac80211: Fix memory leak in ieee80211_if_write()
  mac80211: Fix (dynamic) power save entry
  ipw2200: use kmalloc for large local variables
  ath5k: read eeprom IQ calibration values correctly for G mode
  ath5k: fix I/Q calibration (for real)
  ath5k: fix TSF reset
  ath5k: use fixed antenna for tx descriptors
  libipw: split ieee->networks into small pieces
  mac80211: Fix sta_mtx unlocking on insert STA failure path
  rt2x00: remove KSEG1ADDR define from rt2x00soc.h
  net: add ColdFire support to the smc91x driver
  asix: fix setting mac address for AX88772
  ipv6 ip6_tunnel: eliminate unused recursion field from ip6_tnl{}.
  net: Fix dev_mc_add()
  ...
2010-03-13 14:50:18 -08:00
Akinobu Mita
984b3f5746 bitops: rename for_each_bit() to for_each_set_bit()
Rename for_each_bit to for_each_set_bit in the kernel source tree.  To
permit for_each_clear_bit(), should that ever be added.

The patch includes a macro to map the old for_each_bit() onto the new
for_each_set_bit().  This is a (very) temporary thing to ease the migration.

[akpm@linux-foundation.org: add temporary for_each_bit()]
Suggested-by: Alexey Dobriyan <adobriyan@gmail.com>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Artem Bityutskiy <dedekind@infradead.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-06 11:26:23 -08:00
Anton Vorontsov
0eddba525c gianfar: Fix TX ring processing on SMP machines
Starting with commit a3bc1f11e9 ("gianfar: Revive SKB
recycling") gianfar driver sooner or later stops transmitting any
packets on SMP machines.

start_xmit() prepares new skb for transmitting, generally it does
three things:

1. sets up all BDs (marks them ready to send), except the first one.
2. stores skb into tx_queue->tx_skbuff so that clean_tx_ring()
   would cleanup it later.
3. sets up the first BD, i.e. marks it ready.

Here is what clean_tx_ring() does:

1. reads skbs from tx_queue->tx_skbuff
2. checks if the *last* BD is ready. If it's still ready [to send]
   then it it isn't transmitted, so clean_tx_ring() returns.
   Otherwise it actually cleanups BDs. All is OK.

Now, if there is just one BD, code flow:

- start_xmit(): stores skb into tx_skbuff. Note that the first BD
  (which is also the last one) isn't marked as ready, yet.
- clean_tx_ring(): sees that skb is not null, *and* its lstatus
  says that it is NOT ready (like if BD was sent), so it cleans
  it up (bad!)
- start_xmit(): marks BD as ready [to send], but it's too late.

We can fix this simply by reordering lstatus/tx_skbuff writes.

Reported-by: Martyn Welch <martyn.welch@ge.com>
Bisected-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Tested-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Tested-by: Martyn Welch <martyn.welch@ge.com>
Cc: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Cc: Stable <stable@vger.kernel.org> [2.6.33]
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-04 00:53:53 -08:00
Jiri Pirko
48e2f183cb net: convert multiple drivers to use netdev_for_each_mc_addr, part4
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-22 15:45:52 -08:00
Jiri Pirko
4cd24eaf0c net: use netdev_mc_count and netdev_mc_empty when appropriate
This patch replaces dev->mc_count in all drivers (hopefully I didn't miss
anything). Used spatch and did small tweaks and conding style changes when
it was suitable.

Jirka

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-12 11:38:58 -08:00
Sandeep Gopalpet
f74dac0859 gianfar: Fix gianfar select_queue bogosity
The gfar_select_queue() function was used to set queue mapping
only for forwarding/bridging applications and the condition
for locally generated packets was completely ignored.

The solution is to remove the gfar_select_queue() function and
use skb_record_rx_queue to set queue mapping for
forwarding/bridging applications. This will ensure that in case of
forwarding/bridging applications txq = rxq will be selected and
skb_tx_hash will be used to pick up a txq for locally generated packets.

Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-26 20:24:44 -08:00
Sandeep Gopalpet
a7f38041b8 gianfar: Fix stats support
This patch updates the per rx/tx queue stats.
To update the per rx queue stats a new structure has been
introduced rx_q_stats.
The per tx queue stats are updated via the netdev_queue
structure itself.

Note that we update only the tx_packtes, tx_bytes, rx_packets,
rx_bytes and rx_dropped stats on a per queue basis.

Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-18 20:38:37 -08:00
Sandeep Gopalpet
1ccb8389f2 gianfar: Fix a filer bug
We need to enable filer whenever we need to use multiple RX
queues. Also, need to program RIR0 register with the required
distribution we require, if using RX filer hashing support for
packet distribution to multiple queues.

Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-18 20:38:36 -08:00
Anton Vorontsov
43de004b6c gianfar: Fix build with CONFIG_NET_POLL_CONTROLLER=y
commit 46ceb60ca8 ("gianfar: Add
Multiple group Support") introduced the following build error
with CONFIG_NET_POLL_CONTROLLER=y:

  CC      ggianfar.o
ggianfar.c: In function 'gfar_netpoll':
ggianfar.c:2653: error: invalid storage class for function 'gfar_interrupt'
ggianfar.c:2652: warning: ISO C90 forbids mixed declarations and code
ggianfar.c:2681: error: invalid storage class for function 'adjust_link'
ggianfar.c:2764: error: invalid storage class for function 'gfar_set_multi'
ggianfar.c:2855: error: invalid storage class for function 'gfar_clear_exact_match'
ggianfar.c:2877: error: invalid storage class for function 'gfar_set_hash_for_addr'
ggianfar.c:2898: error: invalid storage class for function 'gfar_set_mac_for_addr'
ggianfar.c:2922: error: invalid storage class for function 'gfar_error'
ggianfar.c:3020: warning: ISO C90 forbids mixed declarations and code
ggianfar.c:3032: error: invalid storage class for function 'gfar_init'
ggianfar.c:3037: error: invalid storage class for function 'gfar_exit'
ggianfar.c:3041: error: initializer element is not constant
ggianfar.c:3042: error: initializer element is not constant
ggianfar.c:3042: warning: ISO C90 forbids mixed declarations and code
ggianfar.c:3042: error: expected declaration or statement at end of input
make[1]: *** [ggianfar.o] Error 1

This patch fixes the issue.

Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-09 02:52:19 -08:00
Anton Vorontsov
a3bc1f11e9 gianfar: Revive SKB recycling
Before calling gfar_clean_tx_ring() the driver grabs an irqsave
spinlock, and then tries to recycle skbs. But since
skb_recycle_check() returns 0 with IRQs disabled, we'll never
recycle any skbs.

It appears that gfar_clean_tx_ring() and gfar_start_xmit() are
mostly idependent and can work in parallel, except when they
modify num_txbdfree.

So we can drop the lock from most sections and thus fix the skb
recycling.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-11 19:03:36 -08:00
Anton Vorontsov
836cf7faf8 gianfar: Fix race between gfar_error() and gfar_start_xmit()
gfar_error() can arrive at the middle of gfar_start_xmit() processing,
and so it can trigger transfers of BDs that we don't yet expect to
be transmitted.

Fix this by locking the tx queues in gfar_error().

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-11 19:03:35 -08:00
Anton Vorontsov
5ea681d4e6 gianfar: Fix build with CONFIG_PM=y
commit fba4ed030c ("gianfar: Add Multiple
Queue Support") introduced the following build failure:

  CC      gianfar.o
gianfar.c: In function 'gfar_restore':
gianfar.c:1249: error: request for member 'napi' in something not a structure or union

This patch fixes the issue.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-11 19:03:33 -08:00
Anton Vorontsov
4dea29d066 gianfar: Remove 'Interrupt problem!' warning
It is OK to poll with disabled IRQs, so remove the warning.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-11 19:03:30 -08:00
Anton Vorontsov
18294ad1ec gianfar: Fix compiler and sparse warnings
commit fba4ed030c ("gianfar: Add Multiple
Queue Support") introduced the following warnings:

  CHECK   gianfar.c
gianfar.c:333:8: warning: incorrect type in assignment (different address spaces)
gianfar.c:333:8:    expected unsigned int [usertype] *baddr
gianfar.c:333:8:    got unsigned int [noderef] <asn:2>*<noident>
[... 67 lines skipped ...]
gianfar.c:2565:3: warning: incorrect type in argument 1 (different type sizes)
gianfar.c:2565:3:    expected unsigned long const *addr
gianfar.c:2565:3:    got unsigned int *<noident>
  CC      gianfar.o
gianfar.c: In function 'gfar_probe':
gianfar.c:985: warning: passing argument 1 of 'find_next_bit' from incompatible pointer type
gianfar.c:985: warning: passing argument 1 of 'find_next_bit' from incompatible pointer type
gianfar.c:993: warning: passing argument 1 of 'find_next_bit' from incompatible pointer type
gianfar.c:993: warning: passing argument 1 of 'find_next_bit' from incompatible pointer type
gianfar.c: In function 'gfar_configure_coalescing':
gianfar.c:1680: warning: passing argument 1 of 'find_next_bit' from incompatible pointer type
gianfar.c:1680: warning: passing argument 1 of 'find_next_bit' from incompatible pointer type
gianfar.c:1688: warning: passing argument 1 of 'find_next_bit' from incompatible pointer type
gianfar.c:1688: warning: passing argument 1 of 'find_next_bit' from incompatible pointer type
gianfar.c: In function 'gfar_poll':
gianfar.c:2565: warning: passing argument 1 of 'find_next_bit' from incompatible pointer type
gianfar.c:2565: warning: passing argument 1 of 'find_next_bit' from incompatible pointer type
gianfar.c:2566: warning: passing argument 2 of 'test_bit' from incompatible pointer type
gianfar.c:2585: warning: passing argument 2 of 'set_bit' from incompatible pointer type

Following warnings left unfixed (looks like sparse doesn't like
locks in loops, so __acquires/__releases() doesn't help):

gianfar.c:441:40: warning: context imbalance in 'lock_rx_qs': wrong count at exit
gianfar.c:441:40:    context '<noident>': wanted 0, got 1
gianfar.c:449:40: warning: context imbalance in 'lock_tx_qs': wrong count at exit
gianfar.c:449:40:    context '<noident>': wanted 0, got 1
gianfar.c:458:3: warning: context imbalance in 'unlock_rx_qs': __context__ statement expected different context
gianfar.c:458:3:    context '<noident>': wanted >= 0, got -1
gianfar.c:466:3: warning: context imbalance in 'unlock_tx_qs': __context__ statement expected different context
gianfar.c:466:3:    context '<noident>': wanted >= 0, got -1

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-08 00:43:17 -08:00
Sandeep Gopalpet
7a8b3372e2 gianfar: Basic Support for programming hash rules
This patch provides basic hash rules programming via the ethtool
interface.

Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-02 23:40:59 -08:00
Sandeep Gopalpet
46ceb60ca8 gianfar: Add Multiple group Support
This patch introduces multiple group support for etsec2.0
devices.

Multiple group support is provided by mapping the set of enabled
queues to different groups and then programming the per group
regsiters imask, ievent, rstat, tstat.

The queues corresponding to a group are indicated by programming
isrg (interrupt steering) registers.

Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-02 23:40:59 -08:00
Sandeep Gopalpet
fba4ed030c gianfar: Add Multiple Queue Support
This patch introduces multiple Tx and Rx queues.
The incoming packets can be classified into different queues
based on filer rules (out of scope of this patch). The number
of queues enabled will be based on a DTS entries fsl,num_tx_queues
and fsl,num_rx_queues.

Although we are enabling multiple queues, the interrupt coalescing
is on per device level (etsec-1.7 doesn't support multiple rxics
and txics).

Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-02 23:40:57 -08:00
Sandeep Gopalpet
f4983704a6 gianfar: Introduce logical group support.
This patch introduces the group structure. The elements of this
structure are the interrupt lines, their corresponding names,
the register memory map.
The elements for this group are factored out from the gfar_private
structure. The introduction of group structure will help in
providing support for newer versions of etsec.

Currently, the support is present only for single group and
single tx/rx queues.

Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-02 23:40:56 -08:00
Sandeep Gopalpet
a12f801d4b gianfar: Add per queue structure support
This patch introduces per tx and per rx queue structures.
Earlier the members of these structures were inside the
gfar_private structure.

Moving forward if we want to support multiple queues, we need
to refactor the gfar_private structure so that introduction of
multiple queues is easier.

Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-02 23:40:55 -08:00
David S. Miller
cfadf853f6 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/sh_eth.c
2009-10-27 01:03:26 -07:00
Anton Vorontsov
e72701acbe net: Fix OF platform drivers coldplug/hotplug when compiled as modules
Some OF platform drivers are missing module device tables, so they won't
load automatically on boot. This patch fixes the issue by adding proper
MODULE_DEVICE_TABLE() macros to the drivers.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-14 14:54:52 -07:00
Anton Vorontsov
be926fc404 gianfar: Add support for hibernation
Thanks to various cleanups and refactorings this is now straightforward:
convert the gianfar driver to dev_pm_ops, plus add ->restore() callback
that will fully reinitialize MAC internal registers and BDs.

Note that I kept legacy suspend/resume callbacks so that this patch
doesn't depend on PowerPC changes (i.e. dev_pm_ops support for OF
platform drivers).

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-12 23:54:05 -07:00
Anton Vorontsov
8728327e7a gianfar: Factor out gfar_init_bds() from gfar_alloc_skb_resources()
After hibernation we want to just reinitialize BDs, no need to allocate
anything. So, factor out BDs initialization code from
gfar_alloc_skb_resourses().

Also, teach gfar_init_bds() to reuse already allocated RX SKBs, i.e.
just call gfar_init_rxbdp() if a SKB was already allocated and mapped.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-12 23:54:05 -07:00
Anton Vorontsov
8a102fe001 gianfar: Factor out RX BDs initialization from gfar_new_rxbdp()
We want to just reinitialize RX BDs after hibernation, no need to
map the skb->data again. So let's factor gfar_init_rxbdp() out of
gfar_new_rxbdp().

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-12 23:54:04 -07:00
Anton Vorontsov
32c513bca0 gianfar: Move tbase/rbase initialization to gfar_init_mac()
For hibernation we want to call gfar_init_mac() without need to
free/allocate_skb_resources sequence, so save the DMA address into a
private struct, and move tbase/rbase initialization to gfar_init_mac().

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-12 23:54:03 -07:00
Anton Vorontsov
826aa4a056 gianfar: Split allocation and initialization steps out of startup_gfar()
Two new functions implemented: gfar_alloc_skb_resources() and
gfar_init_mac(). We'll use gfar_init_mac() for restoring after
hibernation.

The patch just moves the code around, there should be no functional
changes.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-12 23:54:03 -07:00
Anton Vorontsov
14231176b0 gianfar: Don't needlessly set the wrap bit for the last RX BD
startup_gfar() sets the wrap bit for the last rxbd just after
gfar_new_rxbdp() call, which is issued for all rxbds. And
gfar_new_rxbdp() has the following check already:

	if (bdp == priv->rx_bd_base + priv->rx_ring_size - 1)
		lstatus |= BD_LFLAG(RXBD_WRAP);

So we don't need to set the bit again.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-12 23:54:02 -07:00
Anton Vorontsov
e69edd2181 gianfar: Simplify skb resources freeing code
Remove dma_free_coherent() from stop_gfar() and gfar_start() calls,
place it into free_skb_resources(). That makes SKB resources management
more understandable, plus free_skb_resources() will be used as a cleanup
routine for gfar_alloc_skb_resources() that will be implemented soon.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-12 23:54:02 -07:00
Anton Vorontsov
ccc05c6e1e gianfar: Some cleanups for startup_gfar()
We're going to split the startup_gfar() into 3 separate functions,
so let's cleanup the code a little bit so that cosmetic changes
won't distract attention from logical ones.

- Remove needless casts (e.g. (struct sk_buff **)kmalloc());
- Turn 'unsigned long vaddr;' into 'void *vaddr', to avoid casting;
- Add new 'struct device *dev' variable as a shorthand for
  '&priv->ofdev->dev' that is used all over the place, also rename
  'struct net_device *dev' to 'struct net_device *ndev';
- Turn printk(KERN_ERR ...) to pr_err(...), which is shorter;
- Don't return bogus -1 (i.e. -EPERM) when request_irq() fails;
- Turn '&priv->regs->' to just '&regs->'.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-12 23:54:01 -07:00
Linus Torvalds
d7e9660ad9 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1623 commits)
  netxen: update copyright
  netxen: fix tx timeout recovery
  netxen: fix file firmware leak
  netxen: improve pci memory access
  netxen: change firmware write size
  tg3: Fix return ring size breakage
  netxen: build fix for INET=n
  cdc-phonet: autoconfigure Phonet address
  Phonet: back-end for autoconfigured addresses
  Phonet: fix netlink address dump error handling
  ipv6: Add IFA_F_DADFAILED flag
  net: Add DEVTYPE support for Ethernet based devices
  mv643xx_eth.c: remove unused txq_set_wrr()
  ucc_geth: Fix hangs after switching from full to half duplex
  ucc_geth: Rearrange some code to avoid forward declarations
  phy/marvell: Make non-aneg speed/duplex forcing work for 88E1111 PHYs
  drivers/net/phy: introduce missing kfree
  drivers/net/wan: introduce missing kfree
  net: force bridge module(s) to be GPL
  Subject: [PATCH] appletalk: Fix skb leak when ipddp interface is not loaded
  ...

Fixed up trivial conflicts:

 - arch/x86/include/asm/socket.h

   converted to <asm-generic/socket.h> in the x86 tree.  The generic
   header has the same new #define's, so that works out fine.

 - drivers/net/tun.c

   fix conflict between 89f56d1e9 ("tun: reuse struct sock fields") that
   switched over to using 'tun->socket.sk' instead of the redundantly
   available (and thus removed) 'tun->sk', and 2b980dbd ("lsm: Add hooks
   to the TUN driver") which added a new 'tun->sk' use.

   Noted in 'next' by Stephen Rothwell.
2009-09-14 10:37:28 -07:00
David S. Miller
d9d8e0418f gianfar: Fix build.
Reported by Michael Guntsche <mike@it-loops.com>

--------------------
Commit
38bddf04bc gianfar: gfar_remove needs to call unregister_netdev()

breaks the build of the gianfar driver because "dev" is undefined in
this function. To quickly test rc9 I changed this to priv->ndev but I do
not know if this is the correct one.
--------------------

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-06 01:41:24 -07:00
David S. Miller
6cdee2f96a Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/yellowfin.c
2009-09-02 00:32:56 -07:00
Toru UCHIYAMA
38bddf04bc gianfar: gfar_remove needs to call unregister_netdev()
This patch solves the problem that the Oops(BUG_ON) occurs by rmmod.

	# rmmod gianfar_driver
	------------[ cut here ]------------
	Kernel BUG at c01fec48 [verbose debug info unavailable]
	Oops: Exception in kernel mode, sig: 5 [#1]
	MPC837x MDS
	Modules linked in: gianfar_driver(-) usb_storage scsi_wait_scan
	NIP: c01fec48 LR: c01febf4 CTR: c01feba8
	REGS: dec5bd60 TRAP: 0700   Tainted: G        W   (2.6.31-rc2)
	MSR: 00029032 <EE,ME,CE,IR,DR>  CR: 22000424  XER: 20000000
	TASK = dec4cac0[1135] 'rmmod' THREAD: dec5a000
	GPR00: 00000002 dec5be10 dec4cac0 dfba1820 c035d444 c035d478 ffffffff 00000000
	GPR08: 0000002b 00000001 dfba193c 00000001 22000424 10019b34 1ffcb000 00000000
	GPR16: 10012008 00000000 bf82ebe0 100017ec bf82ebec bf82ebe8 bf82ebd0 00000880
	GPR24: 00000000 bf82ebf0 c03532f0 c03532e4 c036b594 dfba183c dfba1800 dfba1820
	NIP [c01fec48] free_netdev+0xa0/0xb8
	LR [c01febf4] free_netdev+0x4c/0xb8
	Call Trace:
	[dec5be10] [c01febf4] free_netdev+0x4c/0xb8 (unreliable)
	[dec5be30] [e105f290] gfar_remove+0x50/0x68 [gianfar_driver]
	[dec5be40] [c01ec534] of_platform_device_remove+0x30/0x44
	[dec5be50] [c0181760] __device_release_driver+0x68/0xc8
	[dec5be60] [c0181868] driver_detach+0xa8/0xac
	[dec5be80] [c0180814] bus_remove_driver+0x9c/0xd8
	[dec5bea0] [c0181efc] driver_unregister+0x60/0x98
	[dec5beb0] [c01ec650] of_unregister_driver+0x14/0x24
	[dec5bec0] [e10631bc] gfar_exit+0x18/0x4bc [gianfar_driver]
	[dec5bed0] [c0047584] sys_delete_module+0x16c/0x228
	[dec5bf40] [c00116bc] ret_from_syscall+0x0/0x38
	--- Exception: c01 at 0xff3669c
	    LR = 0x10000f34
	Instruction dump:
	409e0024 a07e00c0 7c63f050 4be74429 80010024 bba10014 38210020 7c0803a6
	4e800020 68000003 3160ffff 7d2b0110 <0f090000> 38000004 387e01f0 901e01d4
	---[ end trace 8c595bcd37230a0f ]---
	 localhost kernel: ------------[ cut here ]------------

Signed-off-by: Toru UCHIYAMA uchiyama.toru@jp.fujitsu.com
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-30 22:04:07 -07:00
David S. Miller
aa11d958d1 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	arch/microblaze/include/asm/socket.h
2009-08-12 17:44:53 -07:00
Yong Zhang
75c4885924 gianfar: keep vlan related state when restart
If vlan has been enabled. ifdown followed by ifup will lost hardware
related state.

Also remove duplicated operation in gfar_vlan_rx_register().

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Acked-by: Dai Haruki <dai.haruki@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-09 21:45:40 -07:00
David S. Miller
74d154189d Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/wireless/iwmc3200wifi/netdev.c
	net/wireless/scan.c
2009-07-23 19:03:51 -07:00
Anton Vorontsov
1db780f8c7 gianfar: Revive fixed link support
Since commit fe192a4911 ("Rework gianfar
driver to use of_mdio infrastructure") the fixed-link support is
broken, the driver oopses at init_phy():

  Unable to handle kernel paging request for data at address 0x000000e4
  Faulting instruction address: 0xc01cf298
  Oops: Kernel access of bad area, sig: 11 [#1]
  [...]
  NIP [c01cf298] init_phy+0x80/0xdc
  LR [c01cf250] init_phy+0x38/0xdc
  Call Trace:
  [cf81fe80] [c01d1cf8] gfar_enet_open+0x6c/0x19c
  [cf81fea0] [c024494c] dev_open+0xfc/0x134
  [cf81fec0] [c0242edc] dev_change_flags+0x84/0x1ac
  [cf81fee0] [c0399ee0] ic_open_devs+0x168/0x2d8
  [cf81ff20] [c039b2e8] ip_auto_config+0x90/0x2a4
  [cf81ff60] [c0003884] do_one_initcall+0x34/0x1a8

This patch fixes the oops, and removes phy_node checks, and adds a call
to of_phy_connect_fixed_link() if a phy isn't attached..

Also, remove an old fixed-link code that we don't use any longer.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-22 09:27:23 -07:00
David S. Miller
da8120355e Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/wireless/orinoco/main.c
2009-07-16 20:21:24 -07:00
Johannes Berg
c86ae82605 gianfar: remove unused DECLARE_MAC_BUF
The use of it was converted to %pM, but the variable
stuck -- remove it now to not cause spurious warnings.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-15 11:31:10 -07:00
Ben Hutchings
240c102d9c netdev: restore MAC address set and validate operations
alloc_etherdev() used to install default implementations of these
operations, but they must now be explicitly installed in struct
net_device_ops.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-12 14:20:02 -07:00
David S. Miller
c649c0e31d Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/wireless/ath/ath5k/phy.c
	drivers/net/wireless/iwlwifi/iwl-agn.c
	drivers/net/wireless/iwlwifi/iwl3945-base.c
2009-05-25 01:42:21 -07:00
Lennert Buytenhek
4e2fd55519 gianfar: fix BUG under load after introduction of skb recycling
Since commit 0fd56bb5be ("gianfar:
Add support for skb recycling"), gianfar puts skbuffs that are in
the rx ring back onto the recycle list as-is in case there was a
receive error, but this breaks the following invariant: that all
skbuffs on the recycle list have skb->data = skb->head + NET_SKB_PAD.

The RXBUF_ALIGNMENT realignment done in gfar_new_skb() will be done
twice on skbuffs recycled in this way, causing there not to be enough
room in the skb anymore to receive a full packet, eventually leading
to an skb_over_panic from gfar_clean_rx_ring() -> skb_put().

Resetting the skb->data pointer to skb->head + NET_SKB_PAD before
putting the skb back onto the recycle list restores the mentioned
invariant, and should fix this issue.

Reported-by: Michael Guntsche <mike@it-loops.com>
Tested-by: Michael Guntsche <mike@it-loops.com>
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 00:42:34 -07:00
Kumar Gala
6c31d55f75 gianfar: Use memset instead of cacheable_memzero
cacheable_memzero() is completely overkill for the clearing out the FCB
block which is only 8-bytes.  The compiler should easily optimize this
with memset.  Additionally, cacheable_memzero() only exists on ppc32 and
thus breaks builds of gianfar on ppc64.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-28 08:04:10 -07:00
Grant Likely
fe192a4911 net: Rework gianfar driver to use of_mdio infrastructure.
This patch simplifies the driver by making use of more common code.

Tested on Freescale MPC8349emitxgp eval board

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-27 02:53:48 -07:00