Ben Cahill [Fri, 9 Oct 2009 20:20:27 +0000 (13:20 -0700)]
iwl3945: move iwl_power_initialize()
iwl_power_initialize() initializes driver data (not device hardware), and does
not need to execute more than once (when the driver initializes). Therefore, it
does not belong in iwl3945_apm_init(), which initializes hardware, and may run
more than once.
Move it to iwl3945_pci_probe(), where it will run only once. This agrees
with similar placement in iwl-agn.c's iwl_pci_probe(), although placement
under "services" seemed more appropriate than under "mac80211".
Signed-off-by: Ben Cahill <ben.m.cahill@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Ben Cahill [Fri, 9 Oct 2009 20:20:26 +0000 (13:20 -0700)]
iwl3945: streamline iwl3945_rfkill_poll()
iwl3945_rfkill_poll() has been silently calling wiphy_rfkill_set_hw_state()
every 2 seconds, regardless of whether hardware RF KILL switch changed state.
Call wiphy_rfkill_set_hw_state() only when RFKILL switch changes.
Add IWL_DEBUG_RF_KILL log message and documentation.
Signed-off-by: Ben Cahill <ben.m.cahill@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Reinette Chatre [Fri, 9 Oct 2009 20:20:25 +0000 (13:20 -0700)]
iwlwifi: fix userspace setting of sleep_level_override
The sleep_level_override debugfs file is used by the user to request a
static power index instead of the dynamic sleep values. Users are expected
to provide value from 1 to 5 as an index or -1 to disable it.
The problem at the moment is that users can also provide 0 to this file
which, together with the value 1, is translated to index 1. This is
confusing and even more so when users write 0 to sleep_level_override and
then read 1 from it afterwards.
Modify checking to treat 0 as invalid.
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Wey-Yi Guy [Fri, 9 Oct 2009 20:20:24 +0000 (13:20 -0700)]
iwlwifi: additional items in sensitivity range table
Add more items to sensitivity range table to avoid using hardcoded values.
Initialize the table per device since unique per device information is
required to perform sensitivity calibration.
additional items in sensitivity range table:
.barker_corr_th_min: Barker correlation threshold minimum
.barker_corr_th_min_mrc: Barker correlation threshold minimum for MRC
.nrg_th_cca: Energy threshold for Clear Channel Assessment
Barker codes are a technique used in WLAN encoding for transmission.
MRC is "Maximal Ratio Combining", a technique for optimally combining the
signals from 2 or more receivers to achieve a better signal.
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>
Wey-Yi Guy [Fri, 9 Oct 2009 20:20:23 +0000 (13:20 -0700)]
iwlwifi: remove duplicated/unused definition
"IWL_CMD_QUEUE_NUM" is being defined in multiple places and used by all
the devices. move it to iwl-dev.h file and shared by all the devices.
Remove "IWL_CMD_FIFO_NUM", replaced by "IWL49_CMD_FIFO_NUM" and IWL50_CMD_FIFO_NUM"
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>
Ben Cahill [Fri, 9 Oct 2009 20:20:22 +0000 (13:20 -0700)]
iwlagn, iwl3945: remove apm_reset() functions
Clean up device-specific apm_reset() functions and library infrastructure,
now that these reset() functions are no longer being used.
Signed-off-by: Ben Cahill <ben.m.cahill@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Ben Cahill [Fri, 9 Oct 2009 20:20:21 +0000 (13:20 -0700)]
iwl3945: remove unnecessary call to apm_ops.reset()
Now that we're unconditionally using apm_ops.stop() to reset and power-down
the device in __iwl3945_down(), the apm_ops.reset() is redundant. Removing
this call will also allow us to remove iwl3945_apm_reset().
Remove unneeded iwl_clear_bit(CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ) because
this bit will be set again very soon in iwl3945_hw_txq_ctx_stop() and other
following calls.
Signed-off-by: Ben Cahill <ben.m.cahill@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Ben Cahill [Fri, 9 Oct 2009 20:20:20 +0000 (13:20 -0700)]
iwlwifi: turn off device when not used.
In some cases (e.g. when mac80211 calls iwl_mac_stop() for suspend or user
no longer wants device active), device has not been going into low power state
via __iwl_down(). apm_ops.reset() does not put device into low power state;
instead it resets the device, then puts it into a powered-up state ready to be
re-loaded with uCode and re-started. This has needlessly warmed up user's
laptops and drained batteries.
With current architecture in which mac80211 controls device up/down (including
resetting device after firmware errors), there is no need for apm_ops.reset()
any more; apm_ops.reset() is basically a combination of apm_ops.stop() and
apm_ops.init().
Instead, __iwl_down() now unconditionally places the device into a low-power
state via apm_ops.stop(). Device may be re-started via __iwl_up() calling
apm_ops.init() as soon as it may be needed (e.g. quickly for firmware errors),
but in the meantime, device will stop wasting energy.
Note that, even in this low power state, if driver re-enables interrupts,
the device retains the ability to sense the hardware RF-KILL switch, and
(except for 3945) interrupt the host when it changes.
Signed-off-by: Ben Cahill <ben.m.cahill@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Ben Cahill [Fri, 9 Oct 2009 20:20:19 +0000 (13:20 -0700)]
iwl3945: update iwl3945_apm_init()
Update iwl3945_apm_init() to set up device registers in sequence most recently
recommended by factory.
Add resets for APMG interrupts and radio chip, formerly done only in
iwl3945_apm_reset(); moving them here assures that apm_init() will do
a complete job of preparing hardware not only after platform boot,
but also after apm_stop() has executed (due to rfkill, ifconfig down,
driver unload, etc.). This is in preparation to completely remove apm_reset().
Add some comments.
Signed-off-by: Ben Cahill <ben.m.cahill@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
libertas: Check return status of command functions
Return status of lbs_prepare_and_send_command and lbs_cmd_with_response
functions is not checked at some places. Those checks are added.
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Acked-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Juuso Oikarinen [Thu, 8 Oct 2009 18:56:36 +0000 (21:56 +0300)]
wl1271: Mask unneeded events from firmware to conserve power
Currently several events are enabled from the firmware for which there
is no handling. This wakes up the host unnecessarily. Mask those
unneeded events.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Juuso Oikarinen [Thu, 8 Oct 2009 18:56:31 +0000 (21:56 +0300)]
wl1271: Multicast filtering configuration
Enable multicast filtering. This way by default no multicast frames will
reach the host, and when needed, only required multicast frames can be
passed from the WLAN chipset to the host.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Juuso Oikarinen [Thu, 8 Oct 2009 18:56:30 +0000 (21:56 +0300)]
wl1271: Clear probe-request template after scan
Clear the probe-request template on the firmware after scan. Unless
cleared, the firmware can independently send probe requests to the AP
and interfere with the mac80211 logic.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Luciano Coelho [Thu, 8 Oct 2009 18:56:28 +0000 (21:56 +0300)]
wl1271: hack to disable filters
This is a hack to disable all filters in the join command. This is based on
Kalle Valo's patch for wl1251.
Cc: Kalle Valo <kalle.valo@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Juuso Oikarinen [Thu, 8 Oct 2009 18:56:26 +0000 (21:56 +0300)]
wl1271: Corrections to TX path
Corrections to the TX path - use correct number of maximum descriptors
(32 instead of 16) and correct checking and setting of excessive retries
on completion.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Juuso Oikarinen [Thu, 8 Oct 2009 18:56:21 +0000 (21:56 +0300)]
wl1271: Implement delayed entry into ELP
Implement delayed entry into ELP. This will promote the following:
- Less redundant sleep/wake cycles (better perf)
- Avoids known firmware issues with going to ELP too fast after an
operation
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Vidhya Govindan <vidhya.govindan@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Juuso Oikarinen [Thu, 8 Oct 2009 18:56:19 +0000 (21:56 +0300)]
wl1271: Security sequence number handling for TX (for WPA)
Add security sequence number handling to the driver TX data path needed
by WPA.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Kalle Valo <kalle.valo@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Juuso Oikarinen [Thu, 8 Oct 2009 18:56:18 +0000 (21:56 +0300)]
wl1271: Correction to TX block allocation calculation
Correct the TX path implementation to allocate sufficient blocks in the
firmware for TX packets.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Kalle Valo <kalle.valo@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Luciano Coelho [Thu, 8 Oct 2009 18:56:17 +0000 (21:56 +0300)]
wl1271: remove unecessary qual parameter from rx status
The qual element in ieee80211_rx_status is not used anymore, so we don't need
to set it in the wl1271_rx_status() function. This saves a bit of time in
the RX path.
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
ath9k_hw: run ath9k_hw_9271_pa_cal() initial calibration
The PA calibration for ar9271 ath9k_hw_9271_pa_cal() can run during
reset or initial calibration, update the PA calibration to account
for that and initialize PA calibration variables for both conditions.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Ben Hutchings [Fri, 23 Oct 2009 08:33:42 +0000 (08:33 +0000)]
sfc: Rename 'xfp' file and functions to reflect reality
The 'XFP' driver is really a driver for the QT2022C2 and QT2025C PHYs,
covering both more and less than XFP. Rename its functions and
constants to reflect reality and to reduce namespace pollution when
sfc is a built-in driver.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Fri, 23 Oct 2009 08:33:09 +0000 (08:33 +0000)]
sfc: Move MTD probe after netdev registration and name allocation
The MTD partition is named based on the netdev name, which is set to
'eth%d' before registration. Also, the MTD partition will currently
be left registered if netdev registration fails.
Fix both these problems by moving the MTD probe after netdev
registration. Hold the RTNL to serialise this with the netdev
notifier that calls efx_mtd_rename().
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Fri, 23 Oct 2009 08:30:36 +0000 (08:30 +0000)]
sfc: Update hardware definitions for Siena
Siena is still based on the Falcon hardware architecture and will
share many of these definitions, so replace falcon_hwdefs.h with
regs.h.
The new definitions have been generated according to a naming
convention which incorporates the type and revision information.
Update the code accordingly.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Fri, 23 Oct 2009 08:30:17 +0000 (08:30 +0000)]
sfc: Move RX data FIFO thresholds out of struct efx_nic_type
Since there are now separate blocks of code to set the thresholds for
each NIC type, it is no longer useful to include them in the NIC type
description.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Fri, 23 Oct 2009 08:30:06 +0000 (08:30 +0000)]
sfc: Remove versioned bitfield macros
These macros are not extensible to more than two NIC types without
repetition of register definitions, and they are only used to deal
with a few fields in RX_CFG_REG and global events which moved between
Falcon rev A1 and B0.
Therefore:
- Move RX_CFG_REG initialisation into its own function which tests the
NIC revision just once
- Explicitly test the NIC revision when checking the RX_RECOVERY flag in
global events
- Merge definitions of RX_XOFF_MAC_EN flag, which did not move
- Remove the macro definitions
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Krishna Kumar [Mon, 19 Oct 2009 23:50:07 +0000 (23:50 +0000)]
net: Use sk_tx_queue_mapping for connected sockets
For connected sockets, the first run of dev_pick_tx saves the
calculated txq in sk_tx_queue_mapping. This is not saved if
either the device has a queue select or the socket is not
connected. Next iterations of dev_pick_tx uses the cached value
of sk_tx_queue_mapping.
Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Krishna Kumar [Mon, 19 Oct 2009 23:46:45 +0000 (23:46 +0000)]
net: Fix for dst_negative_advice
dst_negative_advice() should check for changed dst and reset
sk_tx_queue_mapping accordingly. Pass sock to the callers of
dst_negative_advice.
(sk_reset_txq is defined just for use by dst_negative_advice. The
only way I could find to get around this is to move dst_negative_()
from dst.h to dst.c, include sock.h in dst.c, etc)
Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Krishna Kumar [Mon, 19 Oct 2009 23:46:20 +0000 (23:46 +0000)]
net: Introduce sk_tx_queue_mapping
Introduce sk_tx_queue_mapping; and functions that set, test and
get this value. Reset sk_tx_queue_mapping to -1 whenever the dst
cache is set/reset, and in socket alloc. Setting txq to -1 and
using valid txq=<0 to n-1> allows the tx path to use the value
of sk_tx_queue_mapping directly instead of subtracting 1 on every
tx.
Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net: Avoid compiler warning for mmsghdr when CONFIG_COMPAT is not selected
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Tue, 20 Oct 2009 08:06:22 +0000 (01:06 -0700)]
filter: Add SKF_AD_QUEUE instruction
It can help being able to filter packets on their queue_mapping.
If filter performance is not good, we could add a "numqueue" field
in struct packet_type, so that netif_nit_deliver() and other functions
can directly ignore packets with not expected queue number.
Lets experiment this simple filter extension first.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Fri, 16 Oct 2009 04:02:20 +0000 (04:02 +0000)]
af_packet: Avoid cache line dirtying
While doing multiple captures, I found af_packet was dirtying cache line
containing its prot_hook.
This slow down machines where several cpus are necessary to handle capture
traffic, as each prot_hook is traversed for each packet coming in or out
the host.
This patches moves "struct packet_type prot_hook" to the end of
packet_sock, and uses a ____cacheline_aligned_in_smp to make sure
this remains shared by all cpus.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This patch makes the private functions alloc_can_skb() and
alloc_can_err_skb() of the at91_can driver public and adapts all
drivers to use these. While making the patch I realized, that
the skb's are *not* setup consistently. It's now done as shown
below:
The frame is zeroed out to avoid uninitialized data to be passed to
user space. Some drivers or library code did not set "pkt_type" or
"ip_summed". Also, "__constant_htons()" should not be used for
runtime invocations, as pointed out by David Miller.
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Tomas Winkler [Sat, 17 Oct 2009 09:09:36 +0000 (09:09 +0000)]
i2400m-sdio: select IWMC3200TOP in Kconfig
i2400m-sdio requires iwmc3200top for its operation
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Acked-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Tomas Winkler [Sat, 17 Oct 2009 09:09:34 +0000 (09:09 +0000)]
iwmc3200top: Add Intel Wireless MultiCom 3200 top driver.
This patch adds Intel Wireless MultiCom 3200 top driver.
IWMC3200 is 4Wireless Com CHIP (GPS/BT/WiFi/WiMAX).
Top driver is responsible for device initialization and firmware download.
Firmware handled by top is responsible for top itself and
as well as bluetooth and GPS coms. (Wifi and WiMax provide their own firmware)
In addition top driver is used to retrieve firmware logs
and supports other debugging features
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ron Mercer [Mon, 19 Oct 2009 03:32:19 +0000 (03:32 +0000)]
qlge: Size RX buffers based on MTU.
Change RX large buffer size based on MTU. If pages are larger
than the MTU the page is divided up into multiple chunks and passed to
the hardware. When pages are smaller than MTU each RX buffer can
contain be comprised of up to 2 pages.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 15 Oct 2009 06:30:45 +0000 (06:30 +0000)]
inet: rename some inet_sock fields
In order to have better cache layouts of struct sock (separate zones
for rx/tx paths), we need this preliminary patch.
Goal is to transfert fields used at lookup time in the first
read-mostly cache line (inside struct sock_common) and move sk_refcnt
to a separate cache line (only written by rx path)
This patch adds inet_ prefix to daddr, rcv_saddr, dport, num, saddr,
sport and id fields. This allows a future patch to define these
fields as macros, like sk_refcnt, without name clashes.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Krishna Kumar [Wed, 14 Oct 2009 19:55:07 +0000 (19:55 +0000)]
genetlink: Optimize and one bug fix in genl_generate_id()
1. GENL_MIN_ID is a valid id -> no need to start at
GENL_MIN_ID + 1.
2. Avoid going through the ids two times: If we start at
GENL_MIN_ID+1 (*or bigger*) and all ids are over!, the
code iterates through the list twice (*or lesser*).
3. Simplify code - no need to start at idx=0 which gets
reset to GENL_MIN_ID.
Patch on net-next-2.6. Reboot test shows that first id
passed to genl_register_family was 16, next two were
GENL_ID_GENERATE and genl_generate_id returned 17 & 18
(user level testing of same code shows expected values
across entire range of MIN/MAX).
Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Einar Lueck [Wed, 14 Oct 2009 22:54:59 +0000 (22:54 +0000)]
ctcm rollback in case of errors
Group device now cleanly reacts to failures during channel start and
implements a clean rollback.
Signed-off-by: Einar Lueck <elelueck@de.ibm.com> Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
lcs: Recognize return codes of ccw_device_set_online().
The creation of a new lcs device requires a call to the function
ccw_device_set_online() for the read and the write channel. Failure
of either call should terminate the lcs device creation immediately
with return code -ENODEV.
Signed-off-by: Klaus-Dieter Wacker <kdwacker@de.ibm.com> Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
projects / linux-beck.git / log