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path: root/drivers/net/wireless/iwlwifi/iwl-trans.c
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2012-03-07iwlwifi: add wrappers for command sendingJohannes Berg
Add wrappers to send commands from the DVM op-mode (which essentially consists of the current driver). This will allow us to move specific sanity checks there. Also, this removes iwl_trans_send_cmd_pdu() since that can now be taken care of in the DVM-specific wrapper. 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>
2012-01-24iwlwifi: update CopyrightWey-Yi Guy
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>
2011-09-19iwlagn: generically provide iwl_trans_send_cmd_pduJohannes Berg
There's no need to have the transport layer have a callback for iwl_trans_send_cmd_pdu() since it is just a generic wrapper around iwl_trans_send_cmd(). 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>
2011-09-19iwlagn: move PCI-E transport filesJohannes Berg
Move all the PCI-E specific transport files to be iwl-trans-pcie*; specifically iwl-trans.c which is really iwl-trans-pcie.c. 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>
2011-09-19iwlagn: Convert kzalloc to kcallocJoe Perches
Convert kzalloc to kcalloc, coalesce multiple lines too. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-19iwlagn: add documentation to the transport layerEmmanuel Grumbach
and do a few clean up fixes on the way 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>
2011-09-19iwlagn: use enum iwl_rxon_context_id instead of u8Emmanuel Grumbach
enum iwl_rxon_context_id is the right type to use when we need a rxon_context_id. 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>
2011-09-19iwlagn: unmap cmd queue's tfds as BIDIEmmanuel Grumbach
If the driver is unloaded while there is still a host command in flight, its tfd will be freed by iwl_tx_queue_free. This function is called for both types of queues: Tx queues and cmd queue. This didn't take in count the fact that in Tx queues, tfds are mapped as TO_DEVICE (besides the first TB), whereas in cmd queue, all TBs are mapped as BIDI. Hence, tx_queue_free unmapped the second (and higher) TB of each tfd in the cmd queue as TO_DEVICE, whereas they must be freed as BIDI. This means that if a multi TFD is in flight while we unload the driver (which is quite unlikely but can happen), we will get the warning below. This patch fixes this. [ 445.234060] ------------[ cut here ]------------ [ 445.236273] WARNING: at lib/dma-debug.c:861 check_unmap+0x337/0x780() [ 445.236654] iwlagn 0000:02:00.0: DMA-API: device driver frees DMA memory with different direction [device address=0x0000000126950540] [size=8 bytes] [mapped with DMA_BIDIRECTIONAL] [unmapped with DMA_TO_DEVICE] [ 445.236654] Modules linked in: ... [ 445.236654] Pid: 1415, comm: modprobe Not tainted 3.1.0-rc4-wl-65912-g5215ff1-dirty #79 [ 445.236654] Call Trace: [ 445.236654] [<ffffffff81043a51>] warn_slowpath_common+0x71/0xa0 [ 445.236654] [<ffffffff81043b37>] warn_slowpath_fmt+0x47/0x50 [ 445.236654] [<ffffffff8121e687>] check_unmap+0x337/0x780 [ 445.236654] [<ffffffff810e9136>] ? free_one_page+0x156/0x320 [ 445.236654] [<ffffffff8121ec5a>] debug_dma_unmap_page+0x5a/0x60 [ 445.236654] [<ffffffffa021d701>] iwlagn_unmap_tfd.isra.11+0x121/0x1c0 [iwlagn] [ 445.236654] [<ffffffffa021ddf2>] iwlagn_txq_free_tfd+0x42/0x70 [iwlagn] [ 445.236654] [<ffffffffa02121de>] iwl_tx_queue_unmap+0x4e/0x70 [iwlagn] [ 445.236654] [<ffffffffa0212fad>] iwl_trans_pcie_tx_free+0x10d/0x440 [iwlagn] [ 445.236654] [<ffffffff81064959>] ? destroy_workqueue+0xb9/0x1e0 [ 445.236654] [<ffffffffa021330a>] iwl_trans_pcie_free+0x2a/0x2c0 [iwlagn] [ 445.236654] [<ffffffffa022f4f2>] iwl_remove+0x149/0x17e [iwlagn] [ 445.236654] [<ffffffffa022f546>] iwl_pci_remove+0x1f/0x65 [iwlagn] [ 445.236654] [<ffffffff81228337>] pci_device_remove+0x47/0x120 [ 445.236654] [<ffffffff8134566c>] __device_release_driver+0x7c/0xe0 [ 445.236654] [<ffffffff81345dc8>] driver_detach+0xc8/0xd0 [ 445.236654] [<ffffffff813454c8>] bus_remove_driver+0x88/0xe0 [ 445.236654] [<ffffffff81346572>] driver_unregister+0x62/0xa0 [ 445.236654] [<ffffffff812271d4>] pci_unregister_driver+0x44/0xc0 [ 445.236654] [<ffffffffa0211ce5>] iwl_pci_unregister_driver+0x15/0x20 [iwlagn] [ 445.236654] [<ffffffffa022f595>] iwl_exit+0x9/0xa74 [iwlagn] [ 445.236654] [<ffffffff810918f4>] sys_delete_module+0x184/0x240 [ 445.236654] [<ffffffff81452ece>] ? retint_swapgs+0xe/0x13 [ 445.236654] [<ffffffff8121098e>] ? trace_hardirqs_on_thunk+0x3a/0x3f [ 445.236654] [<ffffffff81459e2b>] system_call_fastpath+0x16/0x1b [ 445.236654] ---[ end trace 1fbc362b7dbe5d74 ]--- [ 445.236654] Mapped at: [ 445.236654] [<ffffffff8121d7cb>] debug_dma_map_page+0x8b/0x150 [ 445.236654] [<ffffffffa021e7b7>] iwl_enqueue_hcmd+0x837/0xa40 [iwlagn] [ 445.236654] [<ffffffffa021f92d>] iwl_trans_pcie_send_cmd+0x8d/0x580 [iwlagn] [ 445.236654] [<ffffffffa01f7c75>] iwl_send_calib_results+0x75/0xd0 [iwlagn] [ 445.236654] [<ffffffffa01f21f6>] iwlagn_alive_notify+0x196/0x1f0 [iwlagn] [ 445.386500] iwlagn 0000:02:00.0: PCI INT A disabled Reported-by: Johannes Berg <johannes.berg@intel.com> 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>
2011-09-14iwlagn: fix compilation when debug flags is unsetEmmanuel Grumbach
Trivial fixes to allow compilation without warnings when debug compilation flag isn't set. Also fix the compilation when debugfs flag isn't set. Fix a warning: unused priv pointer on the way. 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>
2011-09-14iwlagn: disply queue read/write pointer when stuckWey-Yi Guy
When driver detect queue stuck, display current read/write pointer before perform frimware reload. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-14iwlagn: iwl-trans.c can't dereference iwl_priv any moreEmmanuel Grumbach
This reaches encapsulation for this file. In order to reach this: * move priv->valid_context to iwl_shared * move the last_rejected initialization to the upper layer * define a wrapper iwl_nic_config in the upper layer that calls to cfg->lib->ops->nic_config 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>
2011-09-14iwlagn: move traffic_log back to upper layerEmmanuel Grumbach
The traffic log debugfs handlers were mistakenly moved to the transport layer because they print the pointers of the Tx / Rx queues. The pointers of the queues can be fetched by another debugfs handler. So bring the traffic log back to the upper layer and remove the part that reads the Tx / Rx queues' pointers. 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>
2011-09-14iwlagn: clean up of transport layerEmmanuel Grumbach
Move a few declarations needed by the transport layer to iwl-shared.h Move iwl_cmd_meta, iwl_tx_queue and friends to the internal transport header file. Move iwl_device_cmd iwl_host_cmd and friends to iwl-trans.h since these structs are used in the API to the transport layer. Move get_cmd_string to the upper layer with a declaration in iwl-shared.h. 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>
2011-09-14iwlagn: remove priv dereferences from the transport layerEmmanuel Grumbach
Another round of clean up on the transport layer. Define a wrapper around wiphy_rfkill_set_hw_state to prevent the transport layer from accessing priv->hw. Also move wait_command_queue to the transport layer. 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>
2011-08-29iwlagn: move tx queues to transport layerEmmanuel Grumbach
This finalizes the move of the data path to the transport layer. 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>
2011-08-29iwlagn: move the stop / wake queue logic to transport layerEmmanuel Grumbach
priv->mac80211_registered and priv->hw needed to move to shared. stop_queue API was added in order to allow the upper layer to stop the SW queues for regulatory purposes. 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>
2011-08-29iwlagn: move check_stuck_queue to transport layerEmmanuel Grumbach
This one is really transport related. ==== moves Stanislaw's code to BSD area ==== 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>
2011-08-29iwlagn: move wait_for_tx_queue_empty to transport layerEmmanuel Grumbach
This one is really transport related. 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>
2011-08-29iwlagn: cosmetics in iwl-trans.hEmmanuel Grumbach
Remove a few dereferences of priv from the transport layer while at it. 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>
2011-08-29iwlagn: move the disable agg logic to transport layerEmmanuel Grumbach
Since all the check_empty logic is now in the transport layer, the upper layer doesn't need to know anything about tx queues. The disable aggregation flow was the last to know what a tx queue is, so move it too. 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>
2011-08-29iwlagn: move the check_empty logic to the transport layerEmmanuel Grumbach
This logic is responsible to tell mac80211 when the HW queues are empty and the BA session can be started / torn down. Fix a bug on the way: When the the Tx BA session is stopped and the HW queues aren't empty, we stop the SW queue to drain the HW queue and then switch to the legacy HW queue. This is the IWL_EMPTYING_HW_QUEUE_DELBA state. While in this state, we never wake the SW queue, even when the HW queue is almost empty, since we need to drain it completely. Look at iwl_trans_pcie_reclaim regarding this. Once the HW queue is really empty, we must wake the SW queue in order to get traffic to the legacy queue. This step was missing leading to an odd situation were the traffic would just stall after we tore down a Tx BA session while the HW queue was not empty. 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>
2011-08-29iwlagn: allocate resources for TX BA session in transportEmmanuel Grumbach
The queues and all the related logic suits to the transport layer. 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>
2011-08-29iwlagn: move the mapping ac to queue / fifo to transportEmmanuel Grumbach
This mapping is transport related. This allows us to remove the notion of tx queue from the tx path in the upper layer. iwl_wake_any_queue moved to transport layer since it needs to access these mappings. The TX API is nicer now: int (*tx)(struct iwl_trans *trans, struct sk_buff *skb, struct iwl_device_cmd *dev_cmd, u8 ctx, u8 sta_id); 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>
2011-08-29iwlagn: upper layer uses slabs to allocate tx cmdsEmmanuel Grumbach
In a near future, the upper layer won't be aware of the tx queues. This allows to remove one place where the upper layer needed to provide the tx queue index to the transport layer. This also saves around 1.5MB. 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>
2011-08-29iwlagn: upper layer stores iwl_rxon_context in skb's CBEmmanuel Grumbach
This removes the need for iwl_tx_info. Each tx queue holds an array of skbs, the transport layer doesn't need to know anything about the context in which a specific skb is sent. 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>
2011-08-29iwlagn: stop the device before freeing itEmmanuel Grumbach
When we remove the module, we free all the tx and rx resources. Before doing that, we'd better stop the tx / rx activity. Calling iwl_trans_stop_device in iwl_remove helps also to remove a few API functions: * rx_free: happens in iwl_trans_free * tx_free: happens in iwl_trans_free * disable_sync_irq: happens in iwl_trans_stop_device 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>
2011-08-29iwlagn: remove dereferences of priv from transportEmmanuel Grumbach
There are still quite a few, but much less. A few fields have been moved /copied to hw_params which sits in the shared area: * priv->cfg->base_params->num_of_ampdu_queues * priv->cfg->base_params->shadow_reg_enable * priv->cfg->sku * priv->ucode_owner 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>
2011-08-29iwlagn: iwl_tid_data moves to iwl-sharedEmmanuel Grumbach
The rate scaling and the transport need to access the data in iwl_tid_data, hence the move. Note that the only component in the upper layer that needs this data is the rate scaling. Refactoring the rate scaling may help to move iwl_tid_data from the shared area to the transport area. 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>
2011-08-29iwlagn: all function iwl-io.c receive iwl_busEmmanuel Grumbach
Which means that iwl-io.c doesn't need to include iwl-dev.h any more. 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>
2011-08-29iwlagn: add missing includesEmmanuel Grumbach
a few h files weren't self contained. Fix that. Move iwl_dma_ptr to transport layer since it is not used by the upper layer any more. 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>
2011-08-29iwlagn: move Keep Warm to transport layerEmmanuel Grumbach
It is relevant for PCIe only. 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>
2011-08-29iwlagn: remove unused parameters from hw_paramsEmmanuel Grumbach
Some of them weren't used at all, the others always had the same value since the driver split. 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>
2011-08-29iwlagn: remove references to priv from the transport layerEmmanuel Grumbach
Continue to the clean up of the priv dereferencing 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> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-29iwlagn: move dump_csr and dump_fh to transport layerEmmanuel Grumbach
These are transport layer related. Move also the corresponding debugfs handlers. 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>
2011-08-29iwlagn: move hcmd_lock to transport layerEmmanuel Grumbach
Since it is needed for host commands only, it is needed in transport layer only 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>
2011-08-29iwlagn: transport layer should receive iwl_transEmmanuel Grumbach
Change a lot of functions to have them receive iwl_trans and not iwl_priv. 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>
2011-08-29iwlagn: move iwl_free_pages to iwl-shared.hEmmanuel Grumbach
This helper is used by the transport and the upper layer. Kill __iwl_free_pages which was used in the transport only. 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>
2011-08-29iwlagn: move all iwl_is_XXX helpers to iwl-shared.hEmmanuel Grumbach
Logic move after all priv->status moved to struct iwl_shared 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>
2011-08-29iwlagn: fix the check of IWLAGN_FIRST_AMPDU_QUEUEEmmanuel Grumbach
BUILD_BUG_ON(ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo) != IWLAGN_FIRST_AMPDU_QUEUE); This check can be buggy. IWLAGN_FIRST_AMPDU_QUEUE has to be greater than the ARRAY_SIZE of iwlagn_ipan_queue_to_tx_fifo. 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>
2011-08-29iwlagn: move scd_bc_tbls and scd_base_addr to iwl_trans_pcieEmmanuel Grumbach
Needed for PCIe only 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>
2011-08-29iwlagn: reclaim the packets in transport layerEmmanuel Grumbach
The reclaim flow is really transport related. Define a simple API to allow the upper layer to request from the transport layer to reclaim packets until an index written in the Tx response / BA notification. The transport layer prepares a list of the packets that are being freed and passes this list to the upper layer. Between the two layers, the CB of the skb is used to pass a pointer to the context (BSS / PAN) in which the skb was sent. 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>
2011-08-29iwlagn: move isr_statistics to transport layerEmmanuel Grumbach
It is accessed by the transport layer only, hence the move. The debugfs handlers that accessed it moved to the transport layer too. The rx_handlers part of it stayed in the upper layer and a special debugfs has been added for it Also add missing includes to iwl-commands.h. 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>
2011-08-29iwlagn: move the NIC error flow to the transport layerEmmanuel Grumbach
It is transport dependent, move to the PCIe transport layer. 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>
2011-08-29iwlagn: move ISR related data to transport layerEmmanuel Grumbach
Since the ISR is entirely in the transport layer, its data should be in the pcie specific region. Change sync_irq to first disable and then synchronize the IRQ. iwl_isr and iwl_isr_ict now receive iwl_trans. 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>
2011-08-29iwlagn: move iwl_suspend / iwl_resume to the transport layerEmmanuel Grumbach
These flows needs to access the APM and a few other registers that can differ between different transports. 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>
2011-08-29iwlagn: iwl_rx_queue moves to the iwl_trans_pcieEmmanuel Grumbach
Since this struct is specific to pcie transport, move it the the pcie specific transport layer. 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>
2011-08-29iwlagn: transport handler can register debugfs entriesEmmanuel Grumbach
Add a handler in iwl_trans_ops to allow it to add entries under debugfs dir given by the upper level. 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>
2011-08-29iwlagn: bus layer chooses its transport layerEmmanuel Grumbach
Remove iwl_transport_register which was a W/A. The bus layer knows what transport to use. So now, the bus layer gives the upper layer a pointer to the iwl_trans_ops struct that it wants to use. The upper layer then, allocates the desired transport layer using iwl_trans_ops->alloc function. As a result of this, priv->trans, no longer exists, priv holds a pointer to iwl_shared, which holds a pointer to iwl_trans. This required to change all the calls to the transport layer from upper layer. While we were at it, trans_X inlines have been renamed to iwl_trans_X to avoid confusions, which of course required to rename the functions inside the transport layer because of conflicts in names. So the static API functions inside the transport layer implementation have been renamed to iwl_trans_pcie_X. Until now, the IRQ / Tasklet were initialized in iwl_transport_layer. This is confusing since the registration doesn't mean to request IRQ, so I added a handler for that. 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>
2011-08-29iwlagn: priv->lock moves to iwl_sharedEmmanuel Grumbach
Since it is used by all the layers, it needs to move to iwl_shared. 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>
2011-08-29iwlagn: priv->status moves to iwl_sharedEmmanuel Grumbach
Since it is used by all the layers, it needs to move to iwl_shared. 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>
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