Commit Graph

33 Commits

Author SHA1 Message Date
Frans Pop 91dd6c27a2 iwlwifi: remove trailing space in messages
Includes minor improvements in debugging messages in iwl-4965.c,
function iwl4965_is_temp_calib_needed().

Signed-off-by: Frans Pop <elendil@planet.nl>
Cc: Zhu Yi <yi.zhu@intel.com>
Cc: Reinette Chatre <reinette.chatre@intel.com>
Cc: Intel Linux Wireless <ilw@linux.intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-04-02 12:53:54 -07:00
Reinette Chatre d2dfe6df75 iwlwifi: enable serialization of synchronous commands
Until now it was only possible to have one synchronous command running at
any time. If a synchronous command is in progress when a second request
arrives then the second command will fail. Create a new mutex specific for
this purpose to only allow one synchronous command at a time, but enable
other commands to wait instead of fail if a synchronous command is in
progress.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-19 15:52:49 -05:00
Reinette Chatre 1f44780827 iwlwifi: update copyright year to 2010
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-19 16:25:15 -05:00
Wey-Yi Guy c15867f15f iwlwifi: remove obsoleted host command
"RADAR_NOTIFICATION" host command is not used and not supported by uCode,
remove it from driver code.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-12 14:02:11 -05:00
Zhu Yi 64a76b504b iwlwifi: allocated rx page accounting cleanup
In iwlwifi, priv->alloc_rxb_page is used to keep track of the Rx
pages allocated by the driver. This cleans up the page free routines
by introducing __iwl_free_pages/iwl_free_pages so that the accounting
is more accurate and less error prone. This also fixes two instances where
the counter was not updated.

Signed-off-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>
2009-12-21 11:31:55 -05:00
David S. Miller 3505d1a9fd Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/sfc/sfe4001.c
	drivers/net/wireless/libertas/cmd.c
	drivers/staging/Kconfig
	drivers/staging/Makefile
	drivers/staging/rtl8187se/Kconfig
	drivers/staging/rtl8192e/Kconfig
2009-11-18 22:19:03 -08:00
Reinette Chatre cf7ff8dfe6 iwlwifi: change debug message to error in failure case
Since these messages indicate failure we would be interested in seeing them
always.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11 15:23:40 -05:00
Wey-Yi Guy fe1bcbfda7 iwlwifi: coex API data structure
Add data structure define for COEX_MEDIUM_NOTIFICATION and
COEX_EVENT_CMD host commands.

COEX_MEDIUM_NOTIFICATION is notification from uCode to host to indicate
medium changes. COEX_EVENT_CMD is from host to uCode for coex event
request.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-02 15:39:48 -05:00
Jay Sternberg 1a5c3d6199 iwlwifi: add missing commands to syslog messages
Two commands missing from list of commands such that when debug is
enabled, these commands are shown as UNKNOWN.

Missing commands are TX_ANT_CONFIGURATION_CMD and
TEMPERATURE_NOTIFICATION.

Signed-off-by: Jay Sternberg <jay.e.sternberg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:49:58 -04:00
Zhu Yi 2f301227a1 iwlwifi: use paged Rx
This switches the iwlwifi driver to use paged skb from linear skb for Rx
buffer. So that it relieves some Rx buffer allocation pressure for the
memory subsystem. Currently iwlwifi (4K for 3945) requests 8K bytes for
Rx buffer. Due to the trailing skb_shared_info in the skb->data,
alloc_skb() will do the next order allocation, which is 16K bytes. This
is suboptimal and more likely to fail when the system is under memory
usage pressure. Switching to paged Rx skb lets us allocate the RXB
directly by alloc_pages(), so that only order 1 allocation is required.

It also adjusts the area spin_lock (with IRQ disabled) protected in the
tasklet because tasklet guarentees to run only on one CPU and the new
unprotected code can be preempted by the IRQ handler. This saves us from
spawning another workqueue to make skb_linearize/__pskb_pull_tail happy
(which cannot be called in hard irq context).

Finally, mac80211 doesn't support paged Rx yet. So we linearize the skb
for all the management frames and software decryption or defragmentation
required data frames before handed to mac80211. For all the other frames,
we __pskb_pull_tail 64 bytes in the linear area of the skb for mac80211
to handle them properly.

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:06 -04:00
Alexey Dobriyan d43c36dc6b headers: remove sched.h from interrupt.h
After m68k's task_thread_info() doesn't refer to current,
it's possible to remove sched.h from interrupt.h and not break m68k!
Many thanks to Heiko Carstens for allowing this.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2009-10-11 11:20:58 -07:00
Wey-Yi Guy 22fdf3c9e1 iwlwifi: Traffic type and counter for debugFs
Break down the traffic type and counter for both Tx and Rx.
Enhance the tx_statistics and rx_statistics debugfs function and move
to /sys/kernel/debug/ieee80211/phy0/iwlagn/debug directory to help
better debugging both driver and uCode related problems.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:13:47 -04:00
Johannes Berg 5696aea6f2 iwlwifi: remove command callback return value
No existing callbacks use anything other than the return
value 1, which means that the caller should free the
reply skb, so it seems safer in terms of not introducing
memory leaks to simply remove the return value and let
the caller always free the skb.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-27 15:24:22 -04:00
Johannes Berg c2acea8e9b iwlwifi: fix up command sending
The current command sending in iwlwifi is a bit of a mess:
 1) there is a struct, iwl_cmd, that contains both driver
    and device data in a single packed structure -- this
    is very confusing
 2) the on-stack data and the command metadata share a
    structure by embedding the latter in the former, which
    is also rather confusing because it leads to weird
    unions and similarly odd constructs
 3) each txq always has enough space for 256 commands,
    even if only 32 end up being used

This patch fixes these things:
 1) rename iwl_cmd to iwl_device_cmd and keep track of
    command metadata and device command separately, in
    two arrays in each tx queue
 2) remove the 'meta' member from iwl_host_cmd and only
    put in the required members
 3) allocate the cmd/meta arrays separately instead of
    embedding them into the txq structure

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-27 15:24:21 -04:00
Tomas Winkler e1623446bb iwlwifi: don't use implicit priv in IWL_DEBUG
Call IWL_DEBUG macro with explicit priv argument.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Samuel Ortiz <samuel.ortiz@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-09 15:03:34 -05:00
Reinette Chatre 01f8162a85 iwlwifi: update copyright year to 2009
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 16:00:15 -05:00
Winkler, Tomas 15b1687cb4 iwlwifi: replace IWL_ERROR with IWL_ERR
IWL_ERR doesn't use hidden priv pointer.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 15:59:17 -05:00
Zhu Yi 73e1a65d3c iwlwifi: remove CMD_WANT_SKB flag if send_cmd_sync failure
In function iwl_send_cmd_sync(), if the flag CMD_WANT_SKB is set but
we are not provided with a valid SKB (cmd->meta.u.skb == NULL), we need
to remove the CMD_WANT_SKB flag from the TX cmd queue. Otherwise in case
the cmd comes in later, it will possibly set an invalid address. Thus
it causes an invalid memory access.

This fixed the bug http://bugzilla.kernel.org/show_bug.cgi?id=11326.

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-16 17:08:23 -05:00
Samuel Ortiz d732129b25 iwlwifi: Fix get_cmd_string() for REPLY_3945_RX
0x1b is a 3945 specific command, we should print it too when debugging.

Signed-off-by: Samuel Ortiz <samuel.ortiz@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-12 14:24:51 -05:00
Winkler, Tomas 759ef89fb0 iwlwifi: change email contact information
This patch replaces personal emails with hopefully
always valid Intel Linux Wireless, which will be routed
to a current maintainer

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>
2008-12-12 14:01:46 -05:00
Abhijeet Kolekar c305606540 iwlwifi : fix checkpatch.pl errors
Patch fixes checkpatch.pl errors for iwlwifi.

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>
2008-11-25 16:41:18 -05:00
Esti Kummer ded2ae7c1f iwlwifi: add level for debugging host command
This patch adds another level for debugging host command. This adds an
option to suppress the debug prints for sensitivity and link quality
commands.

Signed-off-by: Esti Kummer <ester.kummer@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-22 16:29:51 -04:00
Huang Weiyi 3eb75aac89 removed unused #include <version.h>
The drivers below do not use LINUX_VERSION_CODE nor KERNEL_VERSION.
  drivers/net/wireless/ath5k/base.c
  drivers/net/wireless/b43/main.c
  drivers/net/wireless/ipw2100.c
  drivers/net/wireless/ipw2200.c
  drivers/net/wireless/iwlwifi/iwl-3945.c
  drivers/net/wireless/iwlwifi/iwl-4965.c
  drivers/net/wireless/iwlwifi/iwl-5000.c
  drivers/net/wireless/iwlwifi/iwl-agn.c
  drivers/net/wireless/iwlwifi/iwl-core.c
  drivers/net/wireless/iwlwifi/iwl-eeprom.c
  drivers/net/wireless/iwlwifi/iwl-hcmd.c
  drivers/net/wireless/iwlwifi/iwl-power.c
  drivers/net/wireless/iwlwifi/iwl3945-base.c

This patch removes the said #include <version.h>.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-18 11:05:15 -04:00
Gregory Greenman da99c4b6c2 iwlwifi: memory allocation optimization
This patch optimizes memory allocation. The cmd member of
iwl_tx_queue was allocated previously as a continuous block
of memory. This patch allocates separate memory chunks for each command
and maps/unmaps these chunks in the run time.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-08-04 15:09:12 -04:00
Emmanuel Grumbach ebbbdc3fb7 iwlwifi: add REPLY_TX_POWER_DBM_CMD to get_cmd_string
This patch adds REPLY_TX_POWER_DBM_CMD to get_cmd_string.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-30 17:37:39 -04:00
Tomas Winkler 7c616cba24 iwlwifi-5000: implement initial calibration for 5000
This patch adds initial calibration framework for 5000 HW faimily.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-03 15:00:23 -04:00
Tomas Winkler fd4abac54a iwlwifi: move TX code into iwl-tx.c
This patch moves the sending part of the TX code into iwl-tx.c
including sending host commands.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-21 21:48:00 -04:00
Tomas Winkler db11d6343a iwlwifi: remove 4965 from rx_packet
This patch removes 4965 mark from rx_packet.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-14 16:29:44 -04:00
Tomas Winkler 3e0d4cb12f iwlwifi: rename iwl-4965.h to iwl-dev.h
This patch renames iwl-4965.h to iwl-dev.h

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-07 15:02:26 -04:00
Emmanuel Grumbach 0a0bed1d10 iwlwifi: add default WEP key host command
This patch adds declaration for static WEP host command. This command will
be used for default WEP group keys when no key mapping keys are used.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-16 15:59:57 -04:00
Tomas Winkler e5472978ef iwlwifi: Fix synchronous host command
This patch replaces static variable from send_cmd_sync
with flag in priv->status. It was used for reentrance protection
but clearly made it impossible to stuck more cards into the same machine

In addition it force check of return values of synchronous commands
commands that doesn't requires return value async commands have to be used

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Yi Zhu <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 17:13:19 -04:00
Emmanuel Grumbach 0472f887e0 iwlwifi: allow a default callback for ASYNC host commands
This patch provides a default callback for ASYNC host commands instead
of calling to BUG_ON. Most of the callbacks are now just empty functions

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-27 16:03:18 -04:00
Tomas Winkler 857485c0c4 iwlwifi: move host command sending functions to core module
1. Host command sending functions moved from iwl4965-base.c to iwl-hcmd.c
in iwlcore module
2. enqueue_hcmd function currently stays in iwl4965-base.c. It is invoked
   through the new 'utils' field in priv's ops.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Assaf Krauss <assaf.krauss@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-25 16:41:55 -04:00