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2016-09-16iwlwifi: pcie: Set affinity mask for rx interrupt vectors per cpuHaim Dreyfuss2-1/+33
In order to utilize the host's CPUs in the most efficient way we bind each rx interrupt vector to each CPU on the host. Each rx interrupt is prioritized to execute only on the designated CPU rather than any CPU. Processor affinity takes advantage of the fact that some remnants of a process that was run on a given processor may remain in that processor's memory state for example, data in the CPU cache after another process is run on that CPU. Scheduling that process to execute on the same processor could result in an efficient use of process by reducing performance-degrading situations such as cache misses and parallel processing. Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-09-16iwlwifi: mvm: free reserved queue on STA removalLiad Kaufman1-1/+23
When a STA is removed in DQA mode, if no traffic went through its reserved queue, the txq continues to be marked as reserved and no STA can use it. Make sure that in such a case the reserved queue is marked as free when the STA is removed. Fixes: commit 24afba7690e4 ("iwlwifi: mvm: support bss dynamic alloc/dealloc of queues") Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-09-16iwlwifi: mvm: fix pending frames tracking on tx respLiad Kaufman1-1/+5
In iwl_mvm_rx_tx_cmd_single(), when checking if a given TID is aggregated, the driver doesn't check whether or not the queue itself can be aggregated. For example, a management queue might be marked as aggregated if TID 0 is aggregated on a (different) data queue. Make sure that mgmt frames are sent with TID IWL_TID_NON_QOS, and in this way make sure no mixups of this sort happen. Fixes: commit 24afba7690e4 ("iwlwifi: mvm: support bss dynamic alloc/dealloc of queues") Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-09-16iwlwifi: pcie: Configure shared interrupt vector in MSIX modeHaim Dreyfuss4-55/+132
In case the OS provides fewer interrupts than requested, different causes will share the same interrupt vector as follow: 1.One interrupt less: non rx causes shared with FBQ. 2.Two interrupts less: non rx causes shared with FBQ and RSS. 3.More than two interrupts: we will use fewer RSS queues. Also make the request depend on the number of online CPUs instead of possible CPUs. Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-09-16iwlwifi: mvm: support new BA notification responseSara Sharon2-54/+184
Support new format. TX response will not be sent anymore, so all needed data is in the BA response. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-09-16iwlwifi: pcie: merge iwl_queue and iwl_txqSara Sharon4-163/+146
The original intent was to have the general iwl_queue shared between RX and TX queues, but it is not the actual status. Since it is not shared with any struct but iwl_txq, it adds unnecessary complexity. Merge those structs. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-09-16iwlwifi: change byte count table for a000 devicesSara Sharon2-8/+35
Since TFD was enlarged to 256 bytes, the fetch of the TFD itself is very expensive. To make DRAM to SRAM more efficient, bits 12-13 will indicate the number of 64 byte chunks that should be transferred to SRAM. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-09-16iwlwifi: pcie: assign and access a000 TFD & TBsSara Sharon3-56/+120
Previous patch introduced the new formats. This patch allocates the new structures and adjusts code accordingly. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-09-16iwlwifi: introduce trans API to get byte count tableSara Sharon4-0/+22
In future HW the byte count table address will be configured by ucode per queue. Add API to expose the byte count table to the opmode Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-09-15iwlwifi: mvm: support new shared memory config APISara Sharon4-52/+77
In a000 devices we have 15 fifos, so in the shared memory config the number of tx fifos in the array was changed accordingly. As it is in the middle of the struct, the parsing code needs to be duplicated. To minimize the duplication, do not save variables we never actually use. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-09-15iwlwifi: mvm: remove dump of locked registersSara Sharon1-2/+0
Firmware may lock those registers for access. This results in 9000 devices with a bus stall and an endless loop of 0x5a5a5a. Don't dump those registers. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-09-15iwlwifi: pcie: introduce new tfd and tb formatsSara Sharon6-31/+64
New hardware supports bigger TFDs and TBs. Introduce the new formats and adjust defines and code relying on old format. Changing the actual TFD allocation is trickier and deferred to the next patch. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-09-15iwlwifi: fix semicolon.cocci warningskbuild test robot1-1/+1
drivers/net/wireless/intel/iwlwifi/iwl-io.c:243:2-3: Unneeded semicolon Remove unneeded semicolon. Generated by: scripts/coccinelle/misc/semicolon.cocci CC: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-09-15iwlwifi: mvm: don't free queue after delba in dqaLiad Kaufman1-3/+7
In DQA mode, a delBA might free the queue although it shouldn't. Fix that. Fixes: cf941e174ee2 ("iwlwifi: mvm: support dqa-mode agg on non-shared queue") Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-09-15iwlwifi: mvm: call a different txq_enable functionSara Sharon1-3/+1
Since the SCD_QUEUE_CFG command was introduced the driver calls iwl_trans_txq_enable_cfg() with a NULL for scd_cfg parameter. This makes the transport avoid writing to the SCD pointers, since it can cause races with firmware, which is also accessing the registers. The transport only updates the write pointer in that case. Fix a wrong call to iwl_trans_txq_enable() which caused a scd_cfg parameter to be sent to transport, resulting with an access to SCD registers. Fixes: 58f2cc57dc6a ("iwlwifi: mvm: support dqa-mode scd queue redirection") Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-08-30iwlwifi: pcie: remove dead codeSara Sharon2-21/+0
If device family is 8000 then iwl_pcie_load_cpu_sections() won't be called at all (iwl_pcie_load_cpu_sections_8000() is called in that case) so this piece of code never gets called. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-08-30iwlwifi: pcie: fix ucode load flow for a000 devicesSara Sharon3-16/+40
Turns out we should access TFH relative addresses. Also, the FH_UCODE_LOAD_STATUS was replaced by UREG_UCODE_LOAD_STATUS. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-08-30iwlwifi: pcie: refrain from SCD accessesSara Sharon2-1/+16
Up till now we accessed SCD configuration only for initial configuration and for enabling command queue. For a000 generation the command queue is open by default and firmware configures the rest. No driver SCD accesses are expected. Make sure this is the case. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-08-30iwlwifi: add the new 9170 seriesOren Givon3-0/+12
Add a new config struct for the new 9170 series and add the first PCI ID for it. Signed-off-by: Oren Givon <oren.givon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-08-30iwlwifi: add the new 9270 seriesOren Givon3-0/+12
Add a new config struct for the new 9270 series and add the first PCI ID for it. Signed-off-by: Oren Givon <oren.givon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-08-30iwlwifi: add new 9460 series PCI IDsOren Givon1-0/+4
Add 4 more new 9460 series PCI IDs. Signed-off-by: Oren Givon <oren.givon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-08-30iwlwifi: add a new series 9460 with new PCI IDOren Givon3-16/+17
Add a new series to the 9000 series called 9460. In addition, add a new PCI ID that is the 9460 new series. Signed-off-by: Oren Givon <oren.givon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-08-30iwlwifi: rename and reorder 9000 series configuration structsOren Givon3-51/+50
Rename and reorder the 9000 series configuration structs: - struct containing configuration of 5165 was renamed to 9000. Signed-off-by: Oren Givon <oren.givon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-08-30iwlwifi: mvm: support txq tid owner changeLiad Kaufman1-0/+51
Every active TXQ is assigned to a TID given through the SCD_CONFIG_CMD, and acts as an identifier in the FW. However, there may be cases this ownership needs to be changed. For example, in the following scenario: 1. TID x is owner of a queue 2. Due to a shortage of queues, TID y and z share with x 3. TID x becomes inactive and needs to be removed from the shared queue. In this scenario, if another queue is freed and traffic on x continues, we can't allocate it a new queue as long as it is the owner of the first queue. Support moving ownership of a TXQ to a different TID (same STA) without stopping the queue. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-08-30iwlwifi: mvm: use defines for SCD_CONFIG_CMD enablementLiad Kaufman3-10/+19
Due to the addition of another option in the SCD_CONFIG_CMD's %enable field, change the assignment of this field to use defines rather than hard-code the value itself. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-08-30iwlwifi: mvm: re-assign old queues after hw restart in dqa modeLiad Kaufman1-2/+70
When working in DQA mode, if a queue is shared and a HW restart occurs, there might be a possible race condition between stations on the queues, and an existing queue might be left with no queues. To solve this, make sure in DQA mode to re-assign the same queues as before the HW restart. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-08-30iwlwifi: mvm: keep track of tid associated with each queueLiad Kaufman3-0/+11
When sending the SCD_QUEUE_CONFIG command, the queue is associated to a specific TID. If later there is a need to use this TID on a different queue instead, it first needs to be unassociated from the first queue. Keep track for every queue what TID is associated with it. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-08-30iwlwifi: mvm: re-aggregate shared queue after unsharingLiad Kaufman5-28/+205
When a shared queue becomes unshared, aggregations should be re-enabled if they've existed before. Make sure that they do this, if required. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-08-29iwlwifi: mvm: support new paging command formatSara Sharon3-10/+32
For a000 devices there is a support of 64 bit DMA addressing. The paging command was changed accordingly - support it. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-08-29iwlwifi: mvm: support GMAC protocolAyala Beker4-17/+76
Add support for installing and removing GMAC key for newer FW versions that support GCM and MFP. GMAC provides authentication and integrity for multicast management frames. Firmware API was changed, update the driver accordingly. Signed-off-by: Ayala Beker <ayala.beker@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-08-29iwlwifi: mvm: allow same PN for de-aggregated AMSDUSara Sharon1-1/+5
The 9000 hardware will de-aggregate AMSDUs. In the process it will copy the mac header "as is" to the new MPDUs. This means driver should allow the same PN for MPDUs originated from the same AMSDU. Do that by incrementing the PN only for the last MPDU in the sequence. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>