Commit Graph

216 Commits

Author SHA1 Message Date
Kiran Divekar ab65f649d3 libertas: fix misuse of netdev_priv() and dev->ml_priv
The mesh and radiotap interfaces need to use the same private data as
the main wifi interface.  If the main wifi interface uses netdev_priv(),
but the other interfaces ->ml_priv, there's no way to figure out where
the private data actually is in the WEXT handlers and netdevice
callbacks.  So make everything use ->ml_priv.

Fixes botched netdev_priv() conversion introduced by "netdevice
libertas: Fix directly reference of netdev->priv", though admittedly
libertas' use of ->priv was somewhat "special".

Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Acked-by: Dan Williams <dcbw@redhat.com>
Tested-by: Chris Ball <cjb@laptop.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-26 15:15:44 -05:00
Colin McCabe b48365994b libertas: Update libertas core with GSPI constants
Add GSPI constants to libertas core.

Fix misleading comment in lbs_setup_firmware.

Signed-off-by: Colin McCabe <colin@cozybit.com>
Signed-off-by: Andrey Yurovsky <andrey@cozybit.com>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 16:00:16 -05:00
Julia Lawall 43baa5bb26 drivers/net/wireless/libertas: move a dereference below a NULL test
In each case, if the NULL test is necessary, then the dereference should be
moved below the NULL test.  I have also taken advantage of the availability
of the value of priv->dev in the subsequent calls to netif_stop_queue and
netif_carrier_off.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
type T;
expression E;
identifier i,fld;
statement S;
@@

- T i = E->fld;
+ T i;
  ... when != E
      when != i
  if (E == NULL) S
+ i = E->fld;
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-11 00:06:35 -08:00
Anna Neal 6fb532527e libertas: Create sysfs entry for changing the mesh probe response limit
This patch adds the ability to change the number of probe response retries sent
by the mesh interface.

In dense networks it is recommended to change this value to zero to reduce
traffic congestion.

Signed-off-by: Anna Neal <anna@cozybit.com>
Signed-off-by: Andrey Yurovsky <andrey@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-12 14:45:13 -05:00
Johannes Berg 2c706002fc don't use net/ieee80211.h
Convert all the drivers using net/ieee80211.h to use linux/ieee80211.h.
Contains a bugfix in libertas where the SSID parsing could overrun the
buffer when the AP sends invalid information.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Dan Williams <dcbw@redhat.com> [airo, libertas]
Acked-by: Pavel Roskin <proski@gnu.org> [orinoco]
Acked-by: David Kilroy <kilroyd@googlemail.com> [orinoco]
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-11-10 15:11:56 -05:00
Wang Chen 4ceb7b6ae2 netdevice libertas: Fix directly reference of netdev->priv
We have some reasons to kill netdev->priv:
1. netdev->priv is equal to netdev_priv().
2. netdev_priv() wraps the calculation of netdev->priv's offset, obviously
   netdev_priv() is more flexible than netdev->priv.
But we cann't kill netdev->priv, because so many drivers reference to it
directly.

OK, becasue Dave S. Miller said, "every direct netdev->priv usage is a bug",
and I want to kill netdev->priv later, I decided to convert all the direct
reference of netdev->priv first.

Different to readonly reference of netdev->priv, in this driver, netdev->priv
was changed. I use netdev->ml_priv to replace netdev->priv.

Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-11-10 15:10:15 -05:00
John W. Linville 7e272fcff6 wireless: consolidate on a single escape_essid implementation
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-10-31 19:00:46 -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
Dan Williams 71b35f3abe libertas: clear current command on card removal
If certain commands were in-flight when the card was pulled or the
driver rmmod-ed, cleanup would block on the work queue stopping, but the
work queue was in turn blocked on the current command being canceled,
which didn't happen.  Fix that.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Cc: stable <stable@kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-11 15:53:38 -04:00
Dan Williams f5fe1fdaae libertas: convert adhoc operations to direct commands
with fixes for v9 and later firmware too.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-29 16:24:07 -04:00
Dan Williams d5db2dfa66 libertas: convert CMD_802_11_RADIO_CONTROL to a direct command
and return errors for operations like join & scan that aren't possible
when the radio is turned off.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-29 16:24:07 -04:00
Dan Williams 191bb40e72 libertas: convert CMD_802_11_DEAUTHENTICATE to a direct command
and remove DISASSOCIATE because it's not in any of the specs and has
never been used.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-29 16:24:06 -04:00
Dan Williams 87c8c72d53 libertas: convert CMD_802_11_RF_TX_POWER to a direct command
And while we're at it, grab min/max TX power from the firmware and use
that to validate incoming TX power requests from WEXT.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-29 16:24:06 -04:00
Dan Williams 3b72b01d3a libertas: only enable rtap with mesh firmware
Since only mesh-enabled firmware has the CMD_802_11_MONITOR_MODE on
which the rtap functionality depends, only expose the rtap functionality
when mesh is also available.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-01 15:31:34 -04:00
David S. Miller b9e4085768 netdev: Do not use TX lock to protect address lists.
Now that we have a specific lock to protect the network
device unicast and multicast lists, remove extraneous
grabs of the TX lock in cases where the code only needs
address list protection.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-15 00:15:08 -07:00
David S. Miller e308a5d806 netdev: Add netdev->addr_list_lock protection.
Add netif_addr_{lock,unlock}{,_bh}() helpers.

Use them to protect operations that operate on or read
the network device unicast and multicast address lists.

Also use them in cases where the code simply wants to
block calls into the driver's ->set_rx_mode() and
->set_multicast_list() methods.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-15 00:13:44 -07:00
David S. Miller 65b53e4cc9 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:

	drivers/net/tg3.c
	drivers/net/wireless/rt2x00/rt2x00dev.c
	net/mac80211/ieee80211_i.h
2008-06-10 02:22:26 -07:00
David S. Miller 788c0a5316 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/linville/wireless-next-2.6
Conflicts:

	drivers/net/ps3_gelic_wireless.c
	drivers/net/wireless/libertas/main.c
2008-06-10 01:54:31 -07:00
Holger Schurig a01f545040 libertas: fix sleep confirmation
This fixes an issus that made "iwconfig eth1 power on" non-working.
When we get a "PS sleep" event, we have to confirm this to the firmware.
The confirm happens with a command, but this command is special: the
firmware won't send us a response. if_cs_host_to_card() is setting
priv->dnld_sent anyway, so this variable stayed at DNLD_DATA_SENT and
was never cleared back.

Now I put the special knowledge that the CMD_802_11_PS_MODE with
CMD_SUBCMD_SLEEP_CONFIRMED doesn't need to need a response by directly
clearing the dnld_sent state in lbs_send_confirmsleep().

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-09 15:50:20 -04:00
Javier Cardona 85319f933a libertas: rate adaptation configuration via iwconfig.
Implemented rate adaptation support via 'iwconfig rate' API.  It is now
possible to specify a bit-rate value and append 'auto'.  That will configure
rate adaptation to use all bit-rates equal or lower than than selected value.

Made lbs_cmd_802_11_rate_adapt_rateset a direct command.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-03 15:00:17 -04:00
Holger Schurig ef707b8387 libertas: before sleeping, check for a command result
If we don't check for a command response early, but rather sleep,
then we might sleep despite an already-received command response.
This will lead to a command-timeout.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-03 15:00:15 -04:00
Holger Schurig b43441a49d libertas: don't spin_unlock_irq() twice
priv->driver_lock has already been unlocked some lines above. This patch
fixes the sparse warning:

drivers/net/wireless/libertas/main.c:792:6: warning: context problem in 'lbs_thread': '_spin_unlock_irq' expected different context
drivers/net/wireless/libertas/main.c:792:6:    context 'lock': wanted >= 1, got 0

Signed-of-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-03 15:00:15 -04:00
David S. Miller 43154d08d6 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:

	drivers/net/cpmac.c
	net/mac80211/mlme.c
2008-05-25 23:26:10 -07:00
Holger Schurig 57962f0b9d libertas: reduce command retry time
[PATCH, take 2] libertas: reduce command retry time

In the normal case, an unsuccessful command would be retried for 10*5 seconds,
or 10*10 seconds in the worst case. This patch reduces this to 3*3 seconds,
or 3*10 seconds in the worst case.

I also reduced the time it takes to start a new command downloaded.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-21 21:47:46 -04:00
David Woodhouse edf5dabfa8 libertas: Add reset_card() callback to hardware driver
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-21 21:47:40 -04:00
Javier Cardona 15dbaac03e libertas: sysfs interface for accessing non-volatile configuration
This will create the following sysfs directories:
/sys/class/net/mshX
		...
		|-- boot_options
		|   |-- bootflag
		|   `-- boottime
		...
		|-- mesh_ie
		|   |-- capability
		|   |-- mesh_id
		|   |-- metric_id
		|   `-- protocol_id

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-21 21:47:39 -04:00
Javier Cardona edaea5ce05 libertas: Extend MESH_CONFIG command to access non-volatile configuration
This patch is based on a patch from Shailendra Govardhan and Brian Cavagnolo.
It extends the MESH_CONFIG command to configure non-volatile parameters on
libertas devices that support them (e.g. OLPC Active Antenna).

This patch only implements the driver/firmware interface.

See http://dev.laptop.org/ticket/6823 for minimal testing results and known
issues.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-21 21:47:39 -04:00
David Woodhouse 75bf45a7b4 libertas: fix multicast filtering on eth and msh interfaces
We weren't properly handling multicast on the mesh interface. Fix that,
which involves setting up the hardware to use the union of dev->mc_list
for both eth%d and msh%d devices.

This means we can't do it directly from ->set_multicast_list() because
we'd need to lock the other device to read its list, and we can't do
that because it might deadlock. So punt the actual work to keventd.

Also, invoke the same when taking an interface down; for some reason the
core calls ->set_multicast_list while IFF_UP is still set in dev->flags
when we're taking it down, so its addresses don't get removed then.

We also convert MAC_MULTICAST_ADR to a direct command while we're at it,
removing one more entry from the big switch statement in the deprecated
lbs_prepare_and_send_command() function.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-21 21:47:38 -04:00
Masakazu Mokuno 229ce3abb6 wireless: Create 'device' symlink in sysfs
Some network interfaces of the wireless drivers lack the 'device'
symlink in sysfs.
This patch lets the drivers create the links.

Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-16 17:15:10 -04:00
Brian Cavagnolo 02969d296e libertas: fix command timeout after firmware failure
This is a fix for OLPC ticket #6586: "SCAN command fails, timer doesn't
fire". In fact, the timer was firing; the problem was that the dnld_sent
state variable was not being updated after the timer expired, so
lbs_execute_next_command was not being called.

Signed-off-by: Brian Cavagnolo <brian@cozybit.com>
Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-16 17:15:09 -04:00
Holger Schurig ef85ad541f libertas: remove lbs_get_data_rate()
lbs_get_data_rate() gets called, but no-one uses it's result.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-14 16:29:50 -04:00
Holger Schurig 652e3f2086 libertas: allow removal of card at any time
This fixes several problems I had:

* when removing the card while the card was scanning or associtating,
  it could happen that destroy_workqueue() stuck and didn't return.
* make sure the command function doesn't run while we remove the list
  of pending commands
* for still unknown reason, I had calls to lbs_stop_card() with
  priv==NULL

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-07 15:02:27 -04:00
Holger Schurig a63e5cb22f libertas: make some functions void
They don't return anything meaningfull and no-one cares about their results.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-07 15:02:27 -04:00
Holger Schurig 5f505d9025 libertas: debug output tweaks for lbs_thread
* make debug output match the variable name
* always report that lbs_remove_rtap() has has been exited

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-07 15:02:26 -04:00
Holger Schurig 7919b89c82 libertas: convert libertas driver to use an event/cmdresp queue
This patch (co-developed by Dan Williams and Holger Schurig) uses a kfifo
object for events and a swapping buffer scheme for the command response to
preserve the zero-copy semantics of the CF driver and keep memory usage low.
The main thread should only ever touch the buffer indexed by priv->resp_idx,
while the interface code is free to write to the second buffer, then swap
priv->resp_idx under the driver spinlock.  The firmware specs only permit
one in-flight command, so there will only ever be one command response to
process at a time.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-16 15:59:56 -04:00
Holger Schurig 245bf20f9c libertas: move association code from scan.c into assoc.c
Besides code moving, I did the following changes:

* made some functions static
* removed some unneeded #include's
* made patch checkpatch.pl clean

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-08 16:44:40 -04:00
Holger Schurig 697900ac14 libertas: move association code from join.c into scan.c
Besides code moving, I did the following changes:

* made some functions static
* removed some unneeded #include's
* made patch checkpatch.pl clean

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-08 16:44:40 -04:00
Holger Schurig 04850a47aa libertas: don't depend on IEEE80211
Runtime-wise we only need escape_ssid from the deprecated IEEE80211
subsystem. However, it's easy to provide our own copy.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:13:17 -04:00
Holger Schurig f539f2efe9 libertas: convert sleep/wake config direct commands
Confirm sleep event: they come very regularly, eventually several times per
second. Therefore we want to send the config command as fast as possible.
The old code pre-set the command in priv->lbs_ps_confirm_sleep. However, the
byte sequence to be sent to the hardware is the same for all interfaces. So
this patch make this an extern structure, initialized at module load time.

Config wake event: normal conversion to a direct command. However, I don't know
how to trigger a "HOST AWAKE" event from the firmware, so this part is
untested.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:13:17 -04:00
Holger Schurig 2af9f039a1 libertas: convert CMD_802_11_MAC_ADDRESS to a direct command
* directly call lbs_cmd_with_response()
* only overwrite priv->current_addr once the firmware call succeeded

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:13:16 -04:00
Holger Schurig c2b310a73b libertas: kill useless #define LBS_MONITOR_OFF 0
Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-27 16:03:19 -04:00
Holger Schurig e98a88dd33 libertas: remove lots of unused stuff
This removes many unused function parameters as well as some not-implemented
functions, e.g. CMD_802_11_GET_STATS. The silly lbs_set_cmd_ctrl_node()
function is now also gone.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-25 16:41:49 -04:00
Holger Schurig d4ff0ef635 libertas: misc power saving adjusts
* firmware for the CF card supports power saving
* the driver currenly only accept "iwconfig ethX power on|off", so
  I fixed what the range wext ioctl reports.
* initialize value/flags in lbs_get_power()
* get rid of unused parameter psmode in lbs_ps_confirm_sleep()
* some minor debug output tweaks

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-25 16:41:49 -04:00
Holger Schurig d9e9778c2a libertas: rename packetfilter to mac_control
The CMD_MAC_CONTROL can be used for other things than just filtering
packets, e.g. to enable and disable WMM. This uses the same term mac_control
for the define, the function and the shadow value in struct lbs_private.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-25 16:41:45 -04:00
Holger Schurig e226868ec3 libertas: make lbs_sync_channel() static
... by moving it into the file where it's sole user resides

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-02-29 15:19:11 -05:00
Roland Dreier 4b7524a42e libertas: Remove unused exports
The libertas driver exports a number of symbols with no in-tree users;
remove these unused exports.  lbs_reset_device() is completely unused, with
no callers at all, so remove the function completely.

A couple of these unused exported symbols are static, which causes the
following build error on ia64 with gcc 4.2.3:

    drivers/net/wireless/libertas/main.c:1375: error: __ksymtab_lbs_remove_mesh causes a section type conflict
    drivers/net/wireless/libertas/main.c:1354: error: __ksymtab_lbs_add_mesh causes a section type conflict

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Acked-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-02-28 09:13:10 -05:00
Holger Schurig 61d30020dc libertas: pepper main with debug statement
libertas: re-pepper debug statementThe recent fluff of updates
didn't put proper lbs_deb_enter/leave calls into the source code.
Add them where appropriate.

Also contains some whitespace changes.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:10:07 -08:00
Holger Schurig c9d1be3619 libertas: don't blindly try mesh
The CF card only has a very old firmware (5.0.16p0). This firmware doesn't
know anything about mesh config. However, current code blindly calls
mesh_config when the card is inserted. So check the firmware version before
issuing this command.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:10:06 -08:00
David Woodhouse 7e94041ca1 libertas: remove check for driver_lock in lbs_interrupt()
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:07:52 -08:00
David Woodhouse 354eca9820 libertas: submit RSSI command on tx timeout, to check whether module is dead
We don't necessarily want to reset the device on a TX timeout. But more
often than not, the real cause is that the firmware has crapped itself,
not just that the network is busy. So submit any harmless command, and
if _that_ times out, then the error handling code will reset the module,
as appropriate.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:07:46 -08:00
David Woodhouse 2a345099a4 libertas: handle command timeout in main thread instead of directly in timer
And handle the case where it times out more than once, too, instead of
locking up for ever.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:07:37 -08:00
David Woodhouse ae125bf827 libertas: store command result in cmdnode instead of priv->cur_cmd_retcode
... at least for users of __lbs_cmd().

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:07:35 -08:00
David Woodhouse 7e226272fc libertas: kill whitespace at end of lines
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:07:28 -08:00
David Woodhouse d9f88705a7 libertas: don't exit worker thread until kthread_stop() is called
The kthread code can't cope with a thread exiting of its own accord and
then someone calling kthread_stop() for it. When the thread detects that
it needs to die, make it wait for kthread_stop() to be called.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:07:26 -08:00
David Woodhouse f5a3ea6f96 libertas: use spin_is_locked() instead of spin_trylock() in lbs_interrupt()
We get scary warnings on UP if we use spin_trylock() and find, as we
hoped, that the lock in question is already locked.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:07:08 -08:00
David Woodhouse 860621347e libertas: pass channel argument directly to lbs_mesh_config()
There is weirdness here; the firmware seems to refuse to change channels
at will.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:07:07 -08:00
David Woodhouse 020f3d0001 libertas: cope with both old and new mesh TLV values
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:07:06 -08:00
David Woodhouse 506e9025e0 libertas: add ethtool support for wake-on-lan configuration
Also, check that suspend is refused if HOST_SLEEP_CFG hasn't been done.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:07:05 -08:00
David Woodhouse ab25ecaea5 libertas: implement suspend and resume core methods
We (ab)use priv->fw_ready to stop the worker thread from sending more
commands or data after the response to the HOST_SLEEP_ACTIVATE command
comes in. And we set it from the callback function _directly_ to ensure
that the worker thread sees it immediately; if we did it in
lbs_suspend() after waking up, that might be too late.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:07:03 -08:00
David Woodhouse f3db2bb411 libertas: make worker thread not freezable
We want it to send the HOST_SLEEP_ACTIVATE command on the way down...

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:07:03 -08:00
David Woodhouse a27b9f96f2 libertas: slight cleanup of netif queue stop/wake
In particular, we shouldn't be waking the queues in lbs_host_to_card_done()
any more.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:07:00 -08:00
David Woodhouse e1258177e4 libertas: be more careful about command responses matching cur_cmd
Especially in the light of OLPC trac #5461, in which the firmware starts
sending us seemingly random command responses which bear little relation
to the command we sent it.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:59 -08:00
David Woodhouse 1f8a08342c libertas: kill references to mesh autostart
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:53 -08:00
David Woodhouse 23a397ac82 libertas: add lbs_mesh sysfs attribute for enabling mesh
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:53 -08:00
David Woodhouse 2fd6cfe307 libertas: make some more functions static
sparse was getting on my tits.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:51 -08:00
Dan Williams 8e3c91bb70 libertas: convert DATA_RATE to a direct command
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:49 -08:00
David Woodhouse 301eacbf30 libertas: convert CMD_MESH_ACCESS to a direct command
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:46 -08:00
Dan Williams ddac452680 libertas: rename and re-type bufvirtualaddr to cmdbuf
Make it a struct cmd_header, since that's what it is, and clean up
the places that it's used.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:45 -08:00
David Woodhouse 10bca0d5f4 libertas: move removal of lbs_rtap file to lbs_stop_card()
This prevents us from trying to remove it when it didn't exist, in the
error case.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:44 -08:00
Dan Williams 6e66f03ff7 libertas: convert GET_HW_SPEC to a direct command
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:42 -08:00
David Woodhouse b15152a403 libertas: don't run thread while firmware not yet ready
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:40 -08:00
David Woodhouse 8552855f98 libertas: make rtap and normal modes mutually exclusive, clean up open/stop
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:38 -08:00
David Woodhouse b31d8b90dc libertas: remove pre_open_check()
The firmware is always initialised before we register the netdevices.
It's not possible for pre_open_check() to fail.

One day we might try loading firmware in ->open(), but still it won't be
just a _check_, like this.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:36 -08:00
David Woodhouse 4f67949656 libertas: clean up lbs_interrupt()
Make it take struct lbs_private as argument; that's all it wants anyway,
and all callers were starting off from that. Don't wake the netif
queues, because those should be handled elsewhere. And sort out the
locking, with a big nasty warning for those who don't have the
driver_lock locked when they call it.

Oh, and fix if_cs.c to lock the driver_lock before calling it.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:35 -08:00
David Woodhouse 2eb188a1c5 libertas: Move actual transmission to main thread
The locking issues with TX, especially TX from multiple netdevs, get
_so_ much easier if you do it like this.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:30 -08:00
David Woodhouse b8d40bc9c9 libertas: refactor the 'should I sleep?' decision in lbs_thread()
This was making my brain hurt.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:30 -08:00
David Woodhouse 121947c62a libertas: set dev_addr on rtap device
This lets us bring it up, because eth_validate_addr() succeeds instead
of returning -EINVAL. And finally monitor mode seems to (mostly) work.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:27 -08:00
David Woodhouse d9268fb9a1 libertas: stop using ieee80211 for radiotap device
There seems to be no point in doing it as an ieee80211 device instead of
a normal netdev, and when we override its ->priv and then call
free_ieee80211() it has a distressing tendency to crash horribly.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:27 -08:00
David Woodhouse 198cefb932 libertas: kill lbs_pre_start_xmit(), lib_mesh_pre_start_xmit()
These wrappers only do two things.

Firstly, they set the frame type, which isn't necessary since
lbs_hard_start_xmit() gets to see which device it belongs to anyway.

Secondly, they return -EOPNOTSUPP if the device is in monitor mode.
Which is a strange thing to do and will provide nasty warnings from
qdisc_restart(). And lbs_hard_start_xmit() seems to have code to cope
with monitor mode anyway.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:26 -08:00
David Woodhouse a9bdce6564 libertas: move lbs_hard_start_xmit() into tx.c
... where it can shortly be merged with lbs_process_tx()...

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:24 -08:00
David Woodhouse 2abdc0b775 libertas: kill internal tx queue for PS mode
It was buggy as hell anyway, since it was just spewing packets at the
device when it wasn't necessarily ready for them (in the USB case, while
the URB was still busy).

We could probably do with a better way of flushing packets to the device
_immediately_, before we stick it back into sleep mode. But we can no
longer just dequeue packets directly, it seems.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:22 -08:00
David Woodhouse a63b22bb5b libertas: use lbs_host_to_card_done() in lbs_tx_timeout()
Also attempt some locking in lbs_host_to_card_done()

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:20 -08:00
David Woodhouse aa21c004f8 libertas: kill struct lbs_adapter
There seems to be no reason for a separate structure; move it all
into struct lbs_private.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:19 -08:00
David Woodhouse f86a93e1b2 libertas: kill TxLockFlag
We don't need this. We can use adapter->currenttxskb instead.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:18 -08:00
David Woodhouse e7deced05f libertas: fix lbs_rtap attribute in sysfs
At least it doesn't oops when you attempt to read or write it now.
Only when you enable it and then later turn it off. And when it's
enabled I don't see how it actually works.

But one fewer oops is good, for now...

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:18 -08:00
David Woodhouse 59f3e4bf1e libertas: clean up lbs_thread() to make it slightly more readable
No semantic changes.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:17 -08:00
David Woodhouse ac47246e24 libertas: kill adapter->nr_cmd_pending
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:15 -08:00
David Woodhouse 2c94404c30 libertas: Move SET_BOOT2_VER command to if_usb where it belongs
This is meaningless for non-USB devices and unimplemented in their
firmware. It's somewhat dubious for USB devices too, but that's a
different story.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:05 -08:00
David Woodhouse e775ed7c67 libertas: Consolidate lbs_host_to_card_done() function.
As we move towards having this done by a state machine, start by having
a single 'stuff sent' function, which is called by if_usb/if_sdio/if_cs
after sending both data and commands.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:06:01 -08:00
Holger Schurig 01affb6530 libertas: tweak tx path debugging
Make two functions in the TX packet path emit
their debug messages with LBS_DEB_TX, not LBS_DEB_MAIN.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:04:56 -08:00
Holger Schurig 69f9032d9d libertas: remove arbitrary typedefs
New typedefs are usually frowned upon. This patch changes
libertas_adapter -> struct libertas_adapter
libertas_priv -> struct libertas_priv

While passing, make everything checkpatch.pl-clean that gets touches.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:04:54 -08:00
Brajesh Dave 01d77d8d47 libertas: separate mesh connectivity from that of the main interface
The transmit and receive traffic as soon as the mesh interface is
brought up.

Test case 1:  Bring up only the mesh interface and ping.  No need for
any iwconfig commands on the main interface.

$ ifconfig msh0 192.168.5.3
$ iwconfig msh0 channel X
$ ping 192.168.5.2
If ping succeeds, PASS

Test case 2:  Associate with the main interface, and turn off AP.  Mesh
interface should not lose connectivity.

$ iwconfig eth0 mode managed essid "my_ssid"
$ ifconfig msh0 192.168.5.3
$ ping 192.168.5.2
<turn off access point>
If ping continues uninterrupted, PASS

This feature requires firmware version 5.110.19.p0 or newer, available
here: http://dev.laptop.org/pub/firmware/libertas/

Signed-off-by: Ashish Shukla <ashishs@marvell.com>
Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:04:52 -08:00
Andres Salomon 4fb910fd3a libertas: mark module_init/exit functions as __init/__exit
Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:04:50 -08:00
Holger Schurig 1007832103 libertas: move to uniform lbs_/LBS_ namespace
This patch unifies the namespace of variables, functions defines
and structures. It does:

- rename libertas_XXX to lbs_XXX
- rename LIBERTAS_XXX to lbs_XXX
- rename wlan_XXX to lbs_XXX
- rename WLAN_XXX to LBS_XXX (but only those that were
  defined in libertas-local *.h files, e.g. not defines
  from net/ieee80211.h)

While passing, I fixed some checkpatch.pl errors too.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:04:46 -08:00
David Woodhouse d0a6895751 libertas: Don't set NETIF_F_IPV6_CSUM in dev->features
I'm not sure why it was doing this, and I'm not sure I _want_ to know
why. But calling it NETIF_F_DYNALLOC doesn't change the fact that the
kernel believes it to be NETIF_F_IPV6_CSUM, and that IPv6 communication
is hence buggered.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-11-29 21:34:52 -05:00
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
Denis Cheng ff8ac60948 drivers/net/: all drivers/net/ cleanup with ARRAY_SIZE
Signed-off-by: Denis Cheng <crquan@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:51:15 -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
Dan Williams 64f104e89b [PATCH] libertas: don't stomp on interface-specific private data
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-10-10 16:50:34 -07:00
Dan Williams 954ee164f4 [PATCH] libertas: reorganize and simplify init sequence
This patch moves all firmware load responsibility into the interface-specific
code and gets rid of the firmware pointer in the generic card structure.  It
also removes 3 fairly unecessary callbacks: hw_register_dev, hw_unregister_dev,
and hw_prog_firmware.  It also makes the init sequence from interface
probe functions more logical, as there are paired add/remove and start/stop
calls into generic libertas code.

Because the USB driver code uses the same TX URB callback for both firmware
upload (where the generic libertas structure isn't initialized yet) and for
normal operation (where it is), some bits of USB code have to deal with
'priv' being NULL.  All USB firmware upload bits have been changed to not
require 'priv' at all, but simply the USB card structure.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-10-10 16:50:34 -07:00