cxgb3: integrate FW and protocol engines in the kernel

Include firmware and protocol images in the kernel image if requested

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

cxgb3: avoid potential memory leak.

Add consistency in alloc_ring() parameter checking
to avoid potential memory leaks.
alloc_ring() callers are correct fo far.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

cxgb3: set hard_xmit in the netdev_ops

Fix t3_eth_xmit() missing into the netdev_ops structure.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-next-2.6

pkt_sched: gen_estimator: Optimize gen_estimator_active()

Since all other gen_estimator functions use bstats and rate_est params
together, and searching for them is optimized now, let's use this also
in gen_estimator_active(). The return type of gen_estimator_active()
is changed to bool, and gen_find_node() parameters to const, btw.

In tcf_act_police_locate() a check for ACT_P_CREATED is added before
calling gen_estimator_active().

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mac80211_hwsim: fix-up some print_mac merge damage

Some print_mac -> %pM conversions got lost in some merge or another...

Signed-off-by: John W. Linville <linville@tuxdriver.com>

mac80211: fix unaligned access in ieee80211_wep_encrypt_data

Signed-off-by: Ivan Kuten <ivan.kuten@promwad.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

p54: fix wmm queue settings

This patch fixes a regression (introduced by
"p54: more definitions form lmac_longbow.h and pda.h")

It turned out that the "ret" variable wasn't initialized and
this caused the following warnings/errors to appear:

wmaster1: failed to set TX queue parameters for queue 2
wmaster1: failed to set TX queue parameters for queue 3
wmaster1: failed to set TX queue parameters for queue 1
wmaster1: failed to set TX queue parameters for queue 0

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Use proper TX channel width for setting channels

The TX channel width of the BSS can be obtained only after association.
In all cases, default to HT20 if HT is enabled, and set
chan width to HT40 only if the BSS supports it.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Code scrub

Merge core.c and base.c
Remove Antenna Diversity (unused now).
Remove unused chainmask handling code.
Comment, indentation scrub.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

nl80211: Change max TX power to be in mBm instead of dBm

In order to be consistent with NL80211_ATTR_POWER_RULE_MAX_EIRP,
change NL80211_FREQUENCY_ATTR_MAX_TX_POWER to use mBm and U32 instead
of dBm and U8. This is a userspace interface change, but the previous
version had not yet been pushed upstream and there are no userspace
programs using this yet, so there is justification to get this change in
as long as it goes in before the previous version gets out.

Signed-off-by: Jouni Malinen <j@w1.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

orinoco: Provide option to avoid unnecessary fw caching

Make firmware caching on startup optional, and make it default.

When the option is not selected and PM_SLEEP is configured, then
cache firmware in the suspend pm_notifier. This configuration saves
about 64k RAM in normal use, but can lead to a situation where the
driver is configured to use a different firmware.

Signed-off by: David Kilroy <kilroyd@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

orinoco: Resume spectrum_cs in the same way as orinoco_cs

Retrieval of external firmware has been resolved, and should work with
the standard orinoco resume algorithm.

This fixes an issue where priv->hw_unavailable indicates the card is
ready when firmware has not been loaded.

Signed-off by: David Kilroy <kilroyd@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

orinoco: Cache Symbol firmware

Signed-off by: David Kilroy <kilroyd@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

orinoco: Separate fw caching from download

This refactorring will make it easier to share logic with Symbol
firmware.

Signed-off by: David Kilroy <kilroyd@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Handle -ENOMEM on RX gracefully

We would get an oops on RX on -ENOMEM by passing
NULL to the hardware on ath_rx_buf_link(). The oops
would look something like this:

ath_rx_tasklet+0x515/0x53b
ath9k_tasklet+0x48
tasklet_action
__do_softirq
irq_exit
do_IRQ

RIP: ath_rx_buf_link+0x3a

We correct this by handling the requeue directly on
the ath_rx_tasklet() and trying to allocate an skb
*prior* to sending up the last hardware processed
skb. If we run out of memory this gauranteees we have
skbs to work with while it simply drops new received
frames.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rfkill: always call get_state() hook on resume

We "optimize" away the get_state() hook call on rfkill_toggle_radio
when doing a forced state change.  This means the resume path is not
calling get_state() as it should.

Call it manually on the resume handler, as we don't want to mess with
the EPO path by removing the optimization.  This has the added benefit
of making it explicit that rfkill->state could have been modified
before we hit the rfkill_toggle_radio() call in the class resume
handler.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rfkill: preserve state across suspend

The rfkill class API requires that the driver connected to a class
call rfkill_force_state() on resume to update the real state of the
rfkill controller, OR that it provides a get_state() hook.

This means there is potentially a hidden call in the resume code flow
that changes rfkill->state (i.e. rfkill_force_state()), so the
previous state of the transmitter was being lost.

The simplest and most future-proof way to fix this is to explicitly
store the pre-sleep state on the rfkill structure, and restore from
that on resume.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

mac80211: Look out for some other AP when disassoc is received.

When a disassoc packet is received from the AP with a reason code of
'leaving the BSS', mac80211 should go into DISABLED state just as it
would do if the AP suddenly went away for some reason, as that is what
will happen shortly after the AP leaves anyway.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

nl80211: Report max TX power in NL80211_BAND_ATTR_FREQS

This is useful information to provide for userspace (e.g., hostapd needs
this to generate Country IE).

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath5k: Clean up eeprom parsing and add missing calibration data

This patch brings the ath5k eeprom parsing code in sync with the work
done on ath_info by Nick Kossifidis and integrates the missing parts
based on the code of the Atheros Legacy HAL release.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Dont update rate control for every AMPDU

Update the rate control only with the tx status of first
AMPDU of an aggregation. This patch fixes frequent drops
in throughput.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlwifi: TX update chicken bits

This instructs FH to increment the retry count of a packet when
it is brought from the memory to TX-FIFO to save transactions
during aggregation flow.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlwifi: TX setup fix confusion between TX queue and TX DMA channel

This patch configures correctly TX DMA channel. It is not
the same as TX queue.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlwifi: 4965 define firmware file name once

Apply same idiom as in 5000 introduced by
'iwlwifi: define firmware file name once'

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlwifi: enable base band calibration in 5000 HW

This patch adds base band calibration support.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwlwifi: move iwl_clear_stations_table to iwl-sta.c

This patch moves iwl_clear_stations_table into iwl-sta.c

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwl3945 : Fix ad-hoc mode for 3945

Patch fixes the ad-hoc mode by
1) Removing redundant clear_stations_table which prevented generation of
beacons.
2) Setting assoc_id to 1. It was never set so preventing tx flow
in iwl3945_tx_skb.

Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath5k: set mac address in add_interface

Configure the mac address in add_interface and clear it in
remove_interface so that users can change the mac address
to something other than the one in the eeprom.  Also avoid
setting it at attach time so that we won't ack packets
until fully set up.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Use straightforward PCI routines to setup the TX buffer.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Update TX trigger level on a FIFO underrun.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Fix bug in deciphering channel flags

CHANNEL_CCK flag is set for all 2 Ghz channels, so IS_CHAN_CCK() would
turn out to be true for all channles in that band.
Use IS_CHAN_B() now, which checks the channel mode and not the channel
flags.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Move TX completion routine to xmit.c

Also, use a helper function to setup RC status data
when processing completed TX descriptors.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Use helpers

Break down huge functions, use helper functions or
macros instead.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: General code scrub

Replace TRUE/FALSE macros with VALID/INVALID macros.
Follow a consistent variable convention.
Remove unnecessary comments.
Add all RC phy macros into a single enum.
Merge functions into reasonably sized entities.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Remove ath9k_rate_table

Maintaining two sets of rate tables is redundant, remove one
and use struct ath_rate_table exclusively.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Use rate_driver_data

Remove the hack using vif, and use rate_driver_data within
skb->cb to hold driver specific rate information.
Setup the rate series in the skb's tx control area and remove
all references to ath9k specific rate series ( using struct ath_rc_series ).

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Remove ath_rate_softc

Move the hw rate tables to ath_softc, and access them directly.
tx_triglevel_max is global, move it to ath_rate_node.
Now that ath_rate_softc is gone, rate control attach becomes simpler.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Remove rate control reference in VAP

Rate control init is now confined to itself, using the
HT capabilites of the STA from rate_init().

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: We don't support non-HT devices, so remove superfluous code.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Revamp RX handling

Remove a lot of old, crufty code and make
RX status reporting a bit sane and clean.

Do not do anything to the RX skb before unmapping.
So in ath_rx_tasklet(), move the skb_put() after PCI unmap.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Nuke fixed rate handling in driver

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Remove half/quarter rate tables

Half/Quarter rate tables are needed only for legacy chipsets.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Remove ath_rate_newassoc()

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Remove ath_setup_rates

Setup legacy rates in ath_rate_init() itself.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Simplify RC alloc/free functions

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Merge struct ath_tx_ratectrl with ath_rate_node

Avoid casting of ath_tx_ratctrl and access the elements directly.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ath9k: Fix panic while unregistering rfkill

 [ 6133.670329] BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
 [ 6133.672802] IP: [<ffffffffa030fcf6>] ieee80211_stop_queues+0x26/0x40 [mac80211]
 [ 6133.672802] PGD 759dc067 PUD 74f1d067 PMD 0
 [ 6133.672802] Oops: 0002 [#1] PREEMPT SMP
 [ 6133.672802] last sysfs file: /sys/class/backlight/acpi_video0/brightness
 [ 6133.672802] CPU 0
 [ 6133.672802] Modules linked in: ath9k(-) mac80211 pciehp pci_hotplug arc4 ecb joydev pcmcia ppdev lp ppp_generic psmouse sg pcspkr s]
 [ 6133.735830] Pid: 4445, comm: rmmod Tainted: G        W  2.6.28-rc5-wl #1
 [ 6133.735830] RIP: 0010:[<ffffffffa030fcf6>]  [<ffffffffa030fcf6>] ieee80211_stop_queues+0x26/0x40 [mac80211]
 [ 6133.735830] RSP: 0018:ffff88007d1efd10  EFLAGS: 00010246
 [ 6133.735830] RAX: 0000000000000000 RBX: ffff880074f41aa0 RCX: 0000000000000000
 [ 6133.735830] RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffff880074f40340
 [ 6133.735830] RBP: ffff880074990000 R08: 0000000000000000 R09: 000000000000224d
 [ 6133.735830] R10: 0000000000000000 R11: ffffffff8031dc70 R12: 0000000000000000
 [ 6133.735830] R13: 0000000000000001 R14: ffff880074f46c9c R15: 0000000000000000
 [ 6133.735830] FS:  00007f1e2e0bc6f0(0000) GS:ffffffff805e0b80(0000) knlGS:0000000000000000
 [ 6133.735830] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
 [ 6133.735830] CR2: 0000000000000010 CR3: 0000000075593000 CR4: 00000000000006e0
 [ 6133.735830] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 [ 6133.735830] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
 [ 6133.735830] Process rmmod (pid: 4445, threadinfo ffff88007d1ee000, task ffff88007c0c8000)
 [ 6133.735830] Stack:
 [ 6133.735830]  ffffffffa034d583 ffff88007c7d9410 ffff88007c7d9410 ffff88007c7d9410
 [ 6133.735830]  ffffffff80481dab ffff880074f41aa0 00000000fffffff0 0000000000000000
 [ 6133.735830]  0000000000000001 0000000000000001 ffffffffa034d8a5 ffff88007c7d9400
 [ 6133.735830] Call Trace:
 [ 6133.735830]  [<ffffffffa034d583>] ? ath_radio_disable+0x33/0x150 [ath9k]
 [ 6133.735830]  [<ffffffff80481dab>] ? __mutex_lock_slowpath+0x20b/0x2a0
 [ 6133.735830]  [<ffffffffa034d8a5>] ? ath_sw_toggle_radio+0x65/0xa0 [ath9k]
 [ 6133.735830]  [<ffffffffa019d1f4>] ? rfkill_toggle_radio+0x74/0x140 [rfkill]
 [ 6133.735830]  [<ffffffffa019d597>] ? rfkill_remove_switch+0x67/0x80 [rfkill]
 [ 6133.735830]  [<ffffffffa019d955>] ? rfkill_unregister+0x25/0x50 [rfkill]
 [ 6133.735830]  [<ffffffffa034bf75>] ? ath_detach+0xf5/0x140 [ath9k]
 [ 6133.735830]  [<ffffffffa034bfe9>] ? ath_pci_remove+0x29/0x80 [ath9k]
 [ 6133.735830]  [<ffffffff8035263c>] ? pci_device_remove+0x2c/0x60
 [ 6133.735830]  [<ffffffff803c3829>] ? __device_release_driver+0x99/0x100
 [ 6133.735830]  [<ffffffff803c3950>] ? driver_detach+0xc0/0xd0
 [ 6133.735830]  [<ffffffff803c296e>] ? bus_remove_driver+0x8e/0xd0
 [ 6133.735830]  [<ffffffff80352916>] ? pci_unregister_driver+0x36/0xa0
 [ 6133.735830]  [<ffffffffa0356ad4>] ? exit_ath_pci+0x10/0x29 [ath9k]
 [ 6133.735830]  [<ffffffff8026bb1b>] ? sys_delete_module+0x1cb/0x2d0
 [ 6133.735830]  [<ffffffff802960d9>] ? do_munmap+0x349/0x390
 [ 6133.735830]  [<ffffffff80342d01>] ? __up_write+0x21/0x150
 [ 6133.735830]  [<ffffffff8020c45b>] ? system_call_fastpath+0x16/0x1b
 [ 6133.735830] Code: c3 0f 1f 40 00 0f b7 57 5e 0f b7 47 5c 01 c2 74 30 31 c9 66 90 48 8b 57 78 0f b7 c1 48 c1 e0 07 48 03 82 00 03 00
 [ 6133.735830] RIP  [<ffffffffa030fcf6>] ieee80211_stop_queues+0x26/0x40 [mac80211]

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rtl8187: Fix transmission count sent to mac80211

In the commit entitled "mac80211/drivers: rewrite the rate control
API", the meaning of the packet transmit count was changed from the
number of retries to the total number.  In driver rtl8187, this change
was missed.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Acked-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Tested-by: Hin-Tak Leung <htl10@users.sourceforge.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

mac80211: Fix pid rate-setting algorithm to allow rate changes

In commit 9ea2c74 named "mac80211/drivers: rewrite the rate control API",
the meaning of status.rates[i].count was changed from number of retries
to total number of tries. As a result, the pid rate-setting algorithm fails
because every packet appears to have needed a retransmit.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

rt2x00: Don't switch off LED on initialization

When we switch off the LEDS during initialization
we kill rt73usb from proper functioning. The immediate
result after the first LED command are MCU failures
and a complete breakdown of TX/RX.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

orinoco: indicate it is using dBm in wireless_stats and spy

Since WE7 /proc/net/wireless checks whether level and noise  are in dBm
and shows them accordingly. Indicate that we return signal and noice
levels in dBm.

Before:
Inter-| sta-|   Quality        |   Discarded packets               | Missed | WE
 face | tus | link level noise |  nwid  crypt   frag  retry   misc | beacon | 22
  eth1: 0000   65.  219.  165.       0      0    148     41      0        0

After:
Inter-| sta-|   Quality        |   Discarded packets               | Missed | WE
 face | tus | link level noise |  nwid  crypt   frag  retry   misc | beacon | 22
  eth1: 0000   65.  -37.  -91.       0      0      0      0      0        0

While at it, replace raw numbers with appropriate macro.

Signed-off-by: Andrey Borzenkov <arvidjaar@mail.ru>
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

mac80211: make Minstrel the default rate control algorithm

This makes minstrel the default rate control algorithm
for mac80211. For more information see:

http://wireless.kernel.org/en/developers/Documentation/mac80211/RateControl/minstrel

If someone can come up with a better algorithm they get a prize
(undisclosed).

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

smc-mca: Fix build failure due to typo.

ultra_netdev_ops --> ultramca_netdev_ops

Signed-off-by: David S. Miller <davem@davemloft.net>

net: release skb->dst in sock_queue_rcv_skb()

When queuing a skb to sk->sk_receive_queue, we can release its dst,
not anymore needed.  Since current cpu did the dst_hold(), refcount is
probably still hot int this cpu caches.

This avoids readers to access the original dst to decrement its
refcount, possibly a long time after packet reception. This should
speedup UDP and RAW receive path.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: Use a percpu_counter for orphan_count

Instead of using one atomic_t per protocol, use a percpu_counter
for "orphan_count", to reduce cache line contention on
heavy duty network servers.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: Use a percpu_counter for sockets_allocated

Instead of using one atomic_t per protocol, use a percpu_counter
for "sockets_allocated", to reduce cache line contention on
heavy duty network servers.

Note : We revert commit (248969ae31e1b3276fc4399d67ce29a5d81e6fd9
net: af_unix can make unix_nr_socks visbile in /proc),
since it is not anymore used after sock_prot_inuse_add() addition

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

tc: policing requires a rate estimator

Found that while trying average rate policing, it was possible to
request average rate policing without a rate estimator. This results
in no policing which is harmless but incorrect.

Since policing could be setup in two steps, need to check
in the kernel.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

tc: check for errors in gen_rate_estimator creation

The functions gen_new_estimator and gen_replace_estimator can return
errors, but they were being ignored.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

tc: propogate errors from tcf_hash_create

Allow tcf_hash_create to return different errors on estimator failure.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

ne2000: convert to net_device_ops

Last driver for today.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3c503: convert to net_device_ops

Another of the 8390p group.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

stnic: convert to net_device_ops

Can just use common ei_netdev_ops definition.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

apne: convert to net_device_ops

Yet another driver.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

ne2: convert to net_device_ops

Almost there.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

hp: convert to net_device_ops

Another old EISA driver converted.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

lne390: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

e2100: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

es3210: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

ne3210: convert to net_device_ops

By having common code in 8390.o don't need net_dev_ops in
the driver.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

smc: convert to net_device_ops

Convert both eisa and mca versions of this driver, though I doubt
anyone still has the hardware.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

hp-plus: convert to net_device_ops

Another driver converted to new infrastructure.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

wd: use net_device_ops

Another driver converted to net_device_ops; Compile tested only.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

8390: add common net_device ops

Fix the defactoring of ei_XXX functions in 8390 and 8390p.
Remove the tx_timeout hack since no driver including the 3c503
overrides tx_timeout at this time, looks like a legacy thing.

Also, since several drivers all have same hooks, provide common
netdev_ops.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: per-netns sysctls

Make
net.core.xfrm_aevent_etime
net.core.xfrm_acq_expires
net.core.xfrm_aevent_rseqth
net.core.xfrm_larval_drop

sysctls per-netns.

For that make net_core_path[] global, register it to prevent two
/proc/net/core antries and change initcall position -- xfrm_init() is called
from fs_initcall, so this one should be fs_initcall at least.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: /proc/net/xfrm_stat in netns

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: per-netns MIBs

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: AH/ESP in netns!

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns PF_KEY: per-netns /proc/pfkey

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns PF_KEY: part 2

* interaction with userspace -- take netns from userspace socket.
* in ->notify hook take netns either from SA or explicitly passed --
we don't know if SA/SPD flush is coming.
* stub policy migration with init_net for now.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns PF_KEY: part 1

* netns boilerplate
* keep per-netns socket list
* keep per-netns number of sockets

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: flush SA/SPDs on netns stop

SA/SPD doesn't pin netns (and it shouldn't), so get rid of them by hand.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: ->get_saddr in netns

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: ->dst_lookup in netns

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: KM reporting in netns

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: pass netns with KM notifications

SA and SPD flush are executed with NULL SA and SPD respectively, for
these cases pass netns explicitly from userspace socket.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: xfrm_user module in netns

Grab netns either from netlink socket, state or policy.

SA and SPD flush are in init_net for now, this requires little
attention, see below.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: per-netns NETLINK_XFRM socket

Stub senders to init_net's one temporarily.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: xfrm_input() fixup

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: dst garbage-collecting in netns

Pass netns pointer to struct xfrm_policy_afinfo::garbage_collect()

[This needs more thoughts on what to do with dst_ops]
[Currently stub to init_net]

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: flushing/pruning bundles in netns

Allow netdevice notifier as result.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: xfrm_route_forward() in netns

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: xfrm_policy_check in netns

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: lookup in netns

Pass netns to xfrm_lookup()/__xfrm_lookup(). For that pass netns
to flow_cache_lookup() and resolver callback.

Take it from socket or netdevice. Stub DECnet to init_net.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: policy walking in netns

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: finding policy in netns

Add netns parameter to xfrm_policy_bysel_ctx(), xfrm_policy_byidx().

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: policy flushing in netns

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: policy insertion in netns

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: propagate netns into policy byidx hash

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

netns xfrm: state walking in netns

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>