Commit Graph

3068 Commits

Author SHA1 Message Date
Emmanuel Grumbach
53476fe11f iwlwifi: document the operational mode
Also add a might_sleep to enforce the context requirements.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-27 13:56:46 -08:00
Emmanuel Grumbach
4d660ce52e iwlwifi: remove iwl_reset_traffic_log from shared
It is op_mode related

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-27 13:56:39 -08:00
Emmanuel Grumbach
3e6895c50a iwlwifi: remove iwl_print_rx_config_cmd from shared
It is op_mode related

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-27 13:56:33 -08:00
Emmanuel Grumbach
36a79223c4 iwlwifi: kill iwl_bus.h
No one needs it any more

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-27 13:55:43 -08:00
Emmanuel Grumbach
ca77d53484 iwlwifi: eeprom gets transport and not bus
This is temporary, but at least we can now throw the bus away
and move the iwl_pci_{probe,remove} functions.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-27 13:27:35 -08:00
Emmanuel Grumbach
90304749c3 iwlwifi: move eeprom defines to iwl-eeprom.c
They don't need to be in iwl-dev.h

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-27 13:27:27 -08:00
Emmanuel Grumbach
ff6e75cb20 iwlwifi: remove a few dereferences to iwl_priv from the tansport
The transport should not dereference the iwl_priv pointer. Remove a
few of those.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-27 13:27:15 -08:00
Emmanuel Grumbach
bcb9321c8d iwlwifi: virtualize op_mode's fw_error
Export it as "nic_error" notification, the error handling will be in
the op_mode.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-27 13:26:58 -08:00
Emmanuel Grumbach
7120d9894c iwlwifi: virtualize op_mode's set_hw_rf_kill
Export it as "hw_rf_kill" notification.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-27 13:26:53 -08:00
Emmanuel Grumbach
02e3835884 iwlwifi: virtualize op_mode's stop/start queue
Export them as "queue_full" and "queue_not_full" notification.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-27 13:26:47 -08:00
Emmanuel Grumbach
db70f290e1 iwlwifi: virtualize op_mode's rx
This is the op_mode's Rx handler.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-27 13:26:40 -08:00
Emmanuel Grumbach
ed277c9361 iwlwifi: virtualize op_mode's free skb
This handler allows the transport layer to free an skb from the
op_mode. This can happen when the driver is stopped while Tx
packets are pending in the transport layer.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-27 13:26:33 -08:00
Emmanuel Grumbach
cbe6ab4e11 iwlwifi: use sparse compliant __aligned__ attribute
Sparse prefers __aligned(sizeof(void *));

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-27 13:26:09 -08:00
Emmanuel Grumbach
d0f76d6869 iwlwifi: virtualize the op_mode
Define the op_mode as an interface with its ops. All the functions
of the op_mode are "private", but its ops is made public in
iwl-op-mode.h.
The drv object starts the op_mode by using the start function in the
public ops.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-27 13:26:02 -08:00
Emmanuel Grumbach
6459f9871a iwlwifi: rename iwl_remove to iwl_op_mode_dvm_stop
iwl_remove stops the wifi flows, so rename.
Moreover, we can possibly stop the wifi flows even if the driver
is statically compiled in the kernel, so remove the __devexit pragma.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-27 13:25:47 -08:00
Emmanuel Grumbach
07590f080d iwlwifi: drv object can release its own memory
Move that code to the iwl-drv.c

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-27 13:25:38 -08:00
Emmanuel Grumbach
5c58edc63e iwlwifi: introducing the drv object's flows
Fetch the fw and spawn the op_mode. The op_mode that we need
to fetch is determined from the fw file.
Since the fw is fetched very early in the init flow, we can
determine what op_mode to spawn.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-27 13:25:15 -08:00
Johannes Berg
a78be210d5 iwlwifi: move uCode flags handling to op_mode
The uCode flags modification is op_mode dependent
since the P2P config is an op-mode config.

This also fixes P2P enabling: due to the uCode
loading code shuffle moving the SKU check before
the EEPROM was read it was always false and would
always disable PAN/P2P.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-27 13:25:06 -08:00
Emmanuel Grumbach
e211b2427a iwlwifi: move content of iwl_probe to post fetch_fw
This will allow to have different behavior depending on the fw.
Different fw APIs require completely different implementation
of the mac80211 APIs. Each of these implementations is called an
op_mode.

The current op_mode is called DVM which states for dual virtual MAC.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-27 13:24:59 -08:00
Emmanuel Grumbach
e9daccd732 iwlwifi: parse_tlv functions set the fw_version string
struct iwl_fw contains a string that describe the fw. This string
is now set by the iwl_parse_*_firmware.
This string is later used to update the cfg80211 data.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-27 13:24:49 -08:00
Danny Kukawka
2530c55ea9 iwlwifi: iwl-agn.h included twice
drivers/net/wireless/iwlwifi/iwl-core.c included 'iwl-agn.h' twice,
remove the duplicate.

Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-27 14:06:43 -05:00
Johannes Berg
5dcbf48047 iwlwifi: fix key removal
When trying to remove a key, we always send key
flags just setting the key type, not including
the multicast flag and the key ID. As a result,
whenever any key was removed, the unicast key 0
would be removed, causing a complete connection
loss after the second rekey (the first doesn't
cause a key removal). Fix the key removal code
to include the key ID and multicast flag, thus
removing the correct key.

Cc: stable@vger.kernel.org
Reported-by: Alexander Schnaidt <alex.schnaidt@googlemail.com>
Tested-by: Alexander Schnaidt <alex.schnaidt@googlemail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-21 14:45:26 -05:00
Meenakshi Venkataraman
758f555f5e iwlwifi: enable receiving beacons when not associated
If the firmware implements beacon filtering,
beacons are filtered when not associated. This causes
association failures on channels marked passive.

Enabling this flag indicates to the firmware to allow
the beacons to pass through when not associated only.

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:58:39 -08:00
Wey-Yi Guy
dd63b84eb4 iwlwifi: remove un-necessary return
Already return 0, change to void

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:58:31 -08:00
Emmanuel Grumbach
dae66d0d2e iwlwifi: SRAM size moves from hw_params to cfg
This will allow to set the hw_params after we fetch the uCode.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:58:19 -08:00
Don Fry
4a986777a5 iwlwifi: save ucode capabilities in iwl_fw
The capabilities parsed from the ucode file are never saved.  Save
them in the iwl_fw structure.

Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:56:33 -08:00
Don Fry
06e03f8ce9 iwlwifi: changes args to iwl_nic for firmware operations
Remove the references to iwl_priv from the firmware request and
parsing routines.  They are generic to the nic.

Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:56:24 -08:00
Emmanuel Grumbach
69655ebf1a iwlwifi: the transport knows its state
This allows to handle races such as Tx packets on their way to be
sent although the transport has been stopped already.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:56:16 -08:00
Don Fry
8655112d91 iwlwifi: move event and err pointers to iwl_nic
Move the ucode offset pointers to the iwl_nic as they are nic related.

Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:56:08 -08:00
Emmanuel Grumbach
60396183a4 iwlwifi: document the transport layer
Fix a few typos in the existing comments too.
Enforce the comments with might_sleep.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:55:17 -08:00
Amit Beka
edabfa914d iwlwifi: send testmode hcmd reply with rx header
When a host command is sent through testmode, the whole
reply (including rx header) is returned to the user, and not
only the payload of the rx.
Before this commit the length was buggy - the reply contained 4 bytes
after the end of the payload.

Signed-off-by: Amit Beka <amit.beka@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:55:10 -08:00
Amit Beka
858b7c74dd iwlwifi: fixes to testmode indirect access
Fixed casting of buffer addressing, and added size to
the read method, like in __iwl_read_prph.

Signed-off-by: Amit Beka <amit.beka@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:55:00 -08:00
Emmanuel Grumbach
637d792591 iwlwifi: use enhance_sensitivity from iwl_fw
Remove another dependency between the nic layer and the iwl_priv
struct.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:54:51 -08:00
Emmanuel Grumbach
6d4dec7ba4 iwlwifi: iwl_set_hw_params returns always 0
Remove the return value.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:53:41 -08:00
Emmanuel Grumbach
78e5a46432 iwlwifi: kill iwl_down and s/__iwl_down/iwl_down
iwl_down was just a wrapper around __iwl_down which was called from
one place only. Replace it to direct call to iwl_down. Add lockdep
warning in iwl_down to ensure it was called with the mutex held.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:36:39 -08:00
Don Fry
655ccceb59 iwlwifi: change args to ucode routines
Change the prameters to the ucode (de)allocate routines to iwl_nic as
they are not transport operations.

Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:28:29 -08:00
Don Fry
6516174d1a iwlwifi: Move ucode pointers to iwl_fw
The ucode image is a ucode related thing not a transport one.  Move them.

Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:28:20 -08:00
Don Fry
96502ceb1c iwlwifi: move firmware_loading_complete to iwl_nic
Move firmware_loading_complete from iwl_priv to iwl_nic and rename it
to more accurately reflect what it does.

Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:28:06 -08:00
Don Fry
737805ff7a iwlwifi: move firmware_name to iwl_nic
Delete firmware_name from iwl_priv and use iwl_nic instead.

Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:28:01 -08:00
Don Fry
f6fd51d9a5 iwlwifi: move fw_index from iwl_priv to iwl_nic
Delete fw_index from iwl_priv and use iwl_nic instead.

Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:27:51 -08:00
Don Fry
d359667767 iwlwifi: move ucode_ver to iwl_nic
Delete ucode_ver from iwl_priv and use iwl_nic instead.

Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:27:44 -08:00
Don Fry
b1c23d9ec3 iwlwifi: create iwl_nic structure
Create iwl_nic structure and link it together.

Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:12:03 -08:00
Johannes Berg
7b11488fbb iwlwifi: give PCIe its own lock
Instead of using a global lock, the PCIe transport
can use an own lock for its IRQ. This will make it
possible to not disable IRQs for the shared lock.
The lock is currently used throughout the code but
this can be improved even further by splitting up
the locking for the queues.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Wey-Yi W Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:11:52 -08:00
Johannes Berg
1ee158d838 iwlwifi: move workqueue to priv
In order to separate the different parts of the
driver better, we are reducing the shared data.
This moves the workqueue to "priv", and removes
it from the transport. To do this, simply use
schedule_work() in the transport.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 10:10:28 -08:00
Johannes Berg
2655e314c4 iwlwifi: trace debug messages
Make iwlwifi record all debug messages into
tracing, even if debug_level is not enabled.
Due to the lack of APIs, the debug messages
are now recorded up to a max length of 100,
the only one above that is the RXON which is
not needed if you trace the commands as well
as it only dumps the command contents.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi W Guy <wey-yi.w.guy@intel.com>
2012-02-17 09:49:27 -08:00
Amit Beka
cdfef6c224 iwlwifi: added reply data to testmode HCMD send
The testmode command for host command send now replies
with a nl80211 message and the response it recieved from
the device.

This does not change the API directly, but adds a reply
to the testmode call.

Signed-off-by: Amit Beka <amit.beka@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 09:49:12 -08:00
Amit Beka
6c55f5ed3a iwlwifi: testmode new indirect RW API
Replaced the old SRAM and periphery indirect access functions
with a unified indirect memory access functions. These include
new IWL_TM_CMDs for buffer read/write/dump which replace the
SRAM read/dump commands, but the API for IWL_TM_CMD_INDIRECT_REG
read/write will now not be supported (returns error).

This also handles writing to periphery registers in 1-3 bytes.

Requires the corresponding patch in the library for the API change.

Signed-off-by: Amit Beka <amit.beka@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 09:49:05 -08:00
Wey-Yi Guy
2f73d7c2b1 iwlwifi: log as error when error detected
A lot of error conditions in testmode log as IWL_DEBUG_INFO which is not
logged by default. Change it

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-17 09:48:56 -08:00
John W. Linville
ca994a36f5 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
Conflicts:
	net/mac80211/debugfs_sta.c
	net/mac80211/sta_info.h
2012-02-15 16:24:37 -05:00
John W. Linville
8f0bb5ae3c Merge branch 'wireless-next' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi 2012-02-06 14:45:53 -05:00
Amit Beka
6fe7dd0db0 iwlwifi: range check to testmode direct reg access
Added a check on the direct register access.
Checks that the address is in the lower ragnge (0x0-0x2000),
which belongs to CSR, HBUS and FH registers.

Signed-off-by: Amit Beka <amit.beka@intel.com>
Signed-off-by: Wey-Yi W Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:38:42 -08:00
Johannes Berg
f057ac4ed7 iwlwifi: release IRQ in error path
smatch correctly complains:
iwl-trans-pcie.c +1528 iwl_trans_pcie_start_hw(50) warn: 'trans->irq' was not released on error

Fix it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi W Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:38:34 -08:00
Don Fry
edf3833406 iwlwifi: move all ucode routines to iwl-ucode.c
The routines dealing with the ucode are spread through several files.
Move them all to the same file and create a iwl-ucode.h file with the
ucode file definitions.

Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:38:22 -08:00
Don Fry
87272af74e iwlwifi: move bcast_sta_id init to common routine
There is nothing device specific in the initialization of the
bcast_sta_id so move it to the common inititalization routine.

Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:38:16 -08:00
Don Fry
1589c5629c iwlwifi: clarify comment
change a comment to be a little more clear

Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:38:06 -08:00
Emmanuel Grumbach
1dcedc8e07 iwlwifi: debug print in tx_queue_set_status is more clear
The message was misleading when a queue is deactivated. The fifo
number is irrelevant then, so don't print it.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:37:58 -08:00
Emmanuel Grumbach
1df06bdc6f iwlwifi: stop_hw replace enable_rfkill_int
This trans_ops->stop_hw leaves the RFKILL interrupt enabled,
we can call that one instead of enable_rfkill_int. By that,
we reduce the numbers of acceesses to the NIC from the upper
layers.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:37:52 -08:00
Emmanuel Grumbach
08079a4919 iwlwifi: move hw_rev to transport layer
The HW revision is now read by the transport layer in its allocation.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:37:45 -08:00
Emmanuel Grumbach
99673ee556 iwlwifi: kill bus_get_hw_id
Get this information from the transport layer.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:37:34 -08:00
Emmanuel Grumbach
9ca8596152 iwlwifi: kill bus_get_hw_id_string
Get this information from the transport layer.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:37:29 -08:00
Emmanuel Grumbach
f6d0e9be65 iwlwifi: kill bus_is_pm_supported
Get this information from the transport layer which is now in charge
of the APM too.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:37:12 -08:00
Emmanuel Grumbach
af634bee8c iwlwifi: kill bus_apm_config
This handler was called from the transport layer only. Merge it
to the transport's apm_init.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:37:06 -08:00
Emmanuel Grumbach
cf6142975b iwlwifi: consolidate the start_device flow
Now there is only one transport function that launch a specific fw:
trans_ops->start_fw. This one replaces trans_ops->start_device and
trans_ops->kick_nic. The code that actually loads the fw to the
device has been moved to the transport specific code.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:36:58 -08:00
Emmanuel Grumbach
d48e2074e2 iwlwifi: move the RF kill logic from iwl_probe to transport
This is another clean up of the proble flow.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:36:51 -08:00
Emmanuel Grumbach
cc56feb2eb iwlwifi: introduce trans_ops->stop_hw
This handler stops the HW and puts it in low power state.
It will allow to clean up the flows in the upper layers.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:36:42 -08:00
Emmanuel Grumbach
a6c684ee48 iwlwifi: move apm_init to start_hw
This is transport related

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:36:36 -08:00
Emmanuel Grumbach
ebb7678d00 iwlwifi: move prepare_card_hw to start_hw
Kill the trans_ops->prepare_card_hw which is now useless.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:36:24 -08:00
Emmanuel Grumbach
57a1dc8909 iwlwifi: rename trans_ops->request_irq to trans_ops->start_hw
This handler will become thicker, reflect its real role now.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:36:13 -08:00
Emmanuel Grumbach
8467ab4f42 iwlwifi: don't use the bus for ucode fw_desc any more
This is transport related

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:36:06 -08:00
Emmanuel Grumbach
ea4caade10 iwlwifi: remove the pointer to dev from the bus layer
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:35:53 -08:00
Emmanuel Grumbach
1042db2af1 iwlwifi: give trans to all the read / write functions
From now on, the transport layer in charge of providing access to the
device. So change all the driver to give a pointer to the transport
to all the low level functions that actually access the device.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:35:45 -08:00
Emmanuel Grumbach
0390549571 iwlwifi: the read / write register ops move to transport
Most of the accesses to the registers are done from the transport layer.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:35:38 -08:00
Emmanuel Grumbach
a42a184458 iwlwifi: move the bus configuration to transport
All the bus configuration is now done in the transport
allocation fucntion.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:34:48 -08:00
Emmanuel Grumbach
b52e7ea109 iwlwifi: allocate the transport from the bus layer
Change the way we alloc the transport on the way.
Since the transport is allocated from a bus specific area, we can
give the bus specific parameters (i.e. pci_dev for PCI) to the
transport. This will be useful when the bus layer will be killed.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:18:15 -08:00
Emmanuel Grumbach
e81fb554cf iwlwifi: move the shrd memory from priv
Allocating the shrd area dynamically will allow more agility
while revamping the flows.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 14:15:33 -08:00
Emmanuel Grumbach
8747bb4936 iwlwifi: separate the APM from the EEPROM
There is no link between the two. Ensure that the NIC is on outside
the code of the EEPROM handling.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 13:40:25 -08:00
Gregory Greenman
a591697730 iwlwifi: Connect IDI transport to driver.
This patch connects IDI transport to driver. It does so
by using a number of ifdefs at this stage.
IDI is a new transport that is under development.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 13:40:16 -08:00
Emmanuel Grumbach
ed6a380340 iwlwifi: add fw_alive to transport layer API, kill tx_start
Define a new handler in the transport layer API: fw_alive.
Move iwl_reset_ict to this new handler, and move the content
of tx_start to this handler.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-02-02 13:40:07 -08:00
Emmanuel Grumbach
3d29dd9b5b iwlwifi: don't mess up QoS counters with non-QoS frames
In my AMPDU rework, I rely on the sequence numbers of frames. But
I didn't check that the frame has a valid tid before updating the
tracking counters. As a result, the Tx queues were stalled. People
who hit this bug saw that we simply didn't let any data out.

This bug was introduced in 3.3.

This patch fixes that and checks that the frame is a QoS frame before
looking at its tid and changing the counters.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-01 15:26:00 -05:00
John W. Linville
5fb8c182d2 iwlwifi: make "Tx aggregation enabled on ra =" be at DEBUG level
Average users either don't care or they think that message indicates a
problem...

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-01 15:26:00 -05:00
John W. Linville
874239f51f Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2012-02-01 10:48:50 -05:00
Johannes Berg
2ed81710cc iwlwifi: always restrict scan dwell in P2P
Whenever the PAN (P2P) context is active, it
has timers in the uCode that prevent sleep,
so scanning can't be out of channel for more
than the beacon interval programmed into the
device.

Before this patch, a full scan including any
passive channels when P2P was active would
stall forever because it wouldn't find time
to execute the passive requests (for default
beacon intervals of 100 TU.)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-30 15:48:36 -05:00
Wey-Yi Guy
dcc3ec04c1 iwlwifi: add option to disalbe LED
Led has no use for some platform.
Add additional module parameter option to disable LED

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-30 15:48:34 -05:00
Johannes Berg
2b2db58d65 iwlwifi: fix uCode event tracing
Fix multiple bugs in event tracing:

1) If you enable uCode tracing with the device down,
   it will still attempt to access the device and
   continuously log "MAC is in deep sleep!" errors.
   Fix this by only starting logging when the device
   is actually alive.

2) Now you can set the flag when the device is down,
   but logging doesn't happen when you bring it up.
   To fix that, start logging when the device comes
   alive. This means we don't log before -- we could
   do that but I don't need it right now.

3) For some reason we read the error instead of the
   event log -- use the right pointer.

4) Optimise SRAM reading of event log header.

5) Fix reading write pointer == capacity, which can
   happen due to racy SRAM access

6) Most importantly: fix an error where we would try
   to read WAY too many events (like 2^32-300) when
   we read the wrap counter before it is updated by
   the uCode -- this does happen in practice and will
   cause the driver to hang the machine.

7) Finally, change the timer to 10ms instead of 100ms
   as 100ms is too slow to capture all data with a
   normal event log and with 100ms the log will wrap
   multiple times before we have a chance to read it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-30 15:48:32 -05:00
Wey-Yi Guy
0a79bb57d4 iwlwifi: fix typo
Fix few places of typo

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-30 15:48:30 -05:00
Johannes Berg
4c7d2fe9b1 iwlwifi: always restrict scan dwell in P2P
Whenever the PAN (P2P) context is active, it
has timers in the uCode that prevent sleep,
so scanning can't be out of channel for more
than the beacon interval programmed into the
device.

Before this patch, a full scan including any
passive channels when P2P was active would
stall forever because it wouldn't find time
to execute the passive requests (for default
beacon intervals of 100 TU.)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-01-28 08:08:28 -08:00
Wey-Yi Guy
42602dd419 iwlwifi: add option to disalbe LED
Led has no use for some platform.
Add additional module parameter option to disable LED

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-01-28 08:08:20 -08:00
Johannes Berg
98d4bf0c49 iwlwifi: fix uCode event tracing
Fix multiple bugs in event tracing:

1) If you enable uCode tracing with the device down,
   it will still attempt to access the device and
   continuously log "MAC is in deep sleep!" errors.
   Fix this by only starting logging when the device
   is actually alive.

2) Now you can set the flag when the device is down,
   but logging doesn't happen when you bring it up.
   To fix that, start logging when the device comes
   alive. This means we don't log before -- we could
   do that but I don't need it right now.

3) For some reason we read the error instead of the
   event log -- use the right pointer.

4) Optimise SRAM reading of event log header.

5) Fix reading write pointer == capacity, which can
   happen due to racy SRAM access

6) Most importantly: fix an error where we would try
   to read WAY too many events (like 2^32-300) when
   we read the wrap counter before it is updated by
   the uCode -- this does happen in practice and will
   cause the driver to hang the machine.

7) Finally, change the timer to 10ms instead of 100ms
   as 100ms is too slow to capture all data with a
   normal event log and with 100ms the log will wrap
   multiple times before we have a chance to read it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-01-28 08:08:13 -08:00
Wey-Yi Guy
de46fb079f iwlwifi: fix typo
Fix few places of typo

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2012-01-28 08:08:06 -08:00
Johannes Berg
b49ba04a3a iwlwifi: fix PCI-E transport "inta" race
When an interrupt comes in, we read the reason
bits and collect them into "trans_pcie->inta".
This happens with the spinlock held. However,
there's a bug resetting this variable -- that
happens after the spinlock has been released.
This means that it is possible for interrupts
to be missed if the reset happens after some
other interrupt reasons were already added to
the variable.

I found this by code inspection, looking for a
reason that we sometimes see random commands
time out. It seems possible that this causes
such behaviour, but I can't say for sure right
now since it happens extremely infrequently on
my test systems.

Cc: stable@vger.kernel.org [3.2]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-24 14:47:10 -05:00
Wey-Yi Guy
fb4961dbc2 iwlwifi: update Copyright
Update Copyright to 2012

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-24 14:08:36 -05:00
Kenny Hsu
668bd6a81b iwlwifi: add testmode cmd IWL_TM_CMD_APP2DEV_GET_FW_INFO
Add new testmode command IWL_TM_CMD_APP2DEV_GET_FW_INFO for
reporting the following information of existing loaded uCode image.
+ uCode type
+ Instruction section size
+ Data section size

Signed-off-by: Kenny Hsu <kenny.hsu@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-24 14:08:36 -05:00
Kenny Hsu
907781b5c4 iwlwifi: update error dump in testmode command sram_read
The error message will be show up by using IWL_ERR
insteads of IWl_DEBUG_INFO.

Signed-off-by: Kenny Hsu <kenny.hsu@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-24 14:08:35 -05:00
Kenny Hsu
b07f08a565 iwlwifi: enhance testmode command sram_read
This patch enables SRAM read function to support entire target memory.

Signed-off-by: Kenny Hsu <kenny.hsu@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-24 14:08:35 -05:00
Kenny Hsu
102f097f19 iwlwifi: update testmode command of direct register access
In order to make sure the testcommand function of direct register
access can be performed even NIC is asleep, replace corresponding
handler iwl_read32 and iwl_write32 by using iwl_direct_read32 and
iwl_direct_write32.

Signed-off-by: Kenny Hsu <kenny.hsu@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-24 14:08:35 -05:00
Wey-Yi Guy
2da424b077 iwlwifi: Sanity check for sta_id
On my testing, I saw some strange behavior

[  421.739708] iwlwifi 0000:01:00.0: ACTIVATE a non DRIVER active station id 148 addr 00:00:00:00:00:00
[  421.739719] iwlwifi 0000:01:00.0: iwl_sta_ucode_activate Added STA id 148 addr 00:00:00:00:00:00 to uCode

not sure how it happen, but adding the sanity check to prevent memory
corruption

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-24 14:08:35 -05:00
Wey-Yi Guy
017664fe8e iwlwifi: don't process the info from uCode if does not has ownership
When enable the testmode from user space and working with uCode, driver does
not own the uCode and should not process the notifications or pkts from uCode

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-24 14:08:35 -05:00
Fabio Estevam
331d9301ed wireless: iwlwifi: iwl-scan.c: Fix build warning
Fix the following build warning:

drivers/net/wireless/iwlwifi/iwl-scan.c: In function ‘iwlagn_request_scan’:
drivers/net/wireless/iwlwifi/iwl-scan.c:572: warning: ‘cmd_len’ may be used uninitialized in this function

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-16 15:01:16 -05:00
John W. Linville
1032c736e8 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
Conflicts:
	drivers/net/wireless/b43legacy/dma.c
2012-01-05 10:13:24 -05:00
Djalal Harouni
84c816dad5 drivers/iwlwifi: use dma_zalloc_coherent() for DMA allocation
Replace dma_alloc_coherent()+memset() with the new dma_zalloc_coherent()

Signed-off-by: Djalal Harouni <tixxdz@opendz.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-04 14:30:41 -05:00