kernel/drivers/net/wireless/intel/iwlwifi/queue, branch linux-6.2.y

iwlwifi: use 4k queue size for Bz A-step

2022-03-10T07:23:28Z

There's a hardware bug in Bz A-step that can be worked around by using 4k queue size, so do that. Signed-off-by: Johannes Berg Signed-off-by: Luca Coelho Link: https://lore.kernel.org/r/iwlwifi.20220304131517.10ea0e115d05.Idfb3706133bf3b15f1f68f1145e77e89947449d1@changeid Signed-off-by: Luca Coelho

iwlwifi: support new queue allocation command

2022-02-18T08:40:55Z

Newer firmware versions will support a new queue allocation command, in order to deal with MLD where multiple stations are used for a single queue. Add support for the new command. This requires some refactoring of the queue allocation API, which now gets - the station mask instead of the station ID - the flags without the "enable" flag, since that's no longer used in the new API Additionally, this new API now requires that we remove queues before removing a station, the firmware will no longer do that internally. Also add support for that. Signed-off-by: Johannes Berg Signed-off-by: Luca Coelho Link: https://lore.kernel.org/r/iwlwifi.20220210181930.acbf22ac2b66.I2bf38578c5ca1f7ffb2011a782f772db92fc4965@changeid Signed-off-by: Luca Coelho

iwlwifi: remove command ID argument from queue allocation

2022-02-18T08:40:54Z

The command ID here is always hard-coded to the same, so we can remove it. In the future we actually need to make this configurable, but that doesn't need to be on each call, it can be done through the transport configuration. Signed-off-by: Johannes Berg Signed-off-by: Luca Coelho Link: https://lore.kernel.org/r/iwlwifi.20220210181930.8b352828f767.Ice4c91d8ea3e207914104e72801b87cd7f409ba7@changeid Signed-off-by: Luca Coelho

iwlwifi: make iwl_txq_dyn_alloc_dma() return the txq

2022-02-18T08:40:54Z

Use the ERR_PTR() machinery to return the queue or an error, instead of having a separate out parameter. Signed-off-by: Johannes Berg Signed-off-by: Luca Coelho Link: https://lore.kernel.org/r/iwlwifi.20220210181930.1f0c5d72fb89.Iefca56d535558b7a8d23204fd16129c17b6704b6@changeid Signed-off-by: Luca Coelho

iwlwifi: avoid variable shadowing

2022-02-18T08:40:52Z

Change a few places to not shadow variables. Signed-off-by: Johannes Berg Signed-off-by: Luca Coelho Link: https://lore.kernel.org/r/iwlwifi.20220130115024.d53f2a7a9614.I7441559451d54b39dc0daeb4c31e5dce19d4d83e@changeid Signed-off-by: Luca Coelho

iwlwifi: cfg: add support for 1K BA queue

2022-02-18T08:40:50Z

In order to support 1K aggregations start ba queue with at least double the size, also allocate based on the connecting type to save memory usage. Signed-off-by: Mordechay Goodstein Signed-off-by: Luca Coelho Link: https://lore.kernel.org/r/iwlwifi.20220128153014.16b43fe3e92f.I853c57648feee4b69ccb01ef4c75354377d60be2@changeid Signed-off-by: Luca Coelho

iwlwifi: avoid void pointer arithmetic

2022-02-18T08:40:50Z

Avoid void pointer arithmetic since it's technically undefined and causes warnings in some places that use our code. Signed-off-by: Johannes Berg Signed-off-by: Luca Coelho Link: https://lore.kernel.org/r/iwlwifi.20220128153014.e349104ecd94.Iadc937f475158b9437becdfefb361a97e7eaa934@changeid Signed-off-by: Luca Coelho

iwlwifi: mvm: optionally suppress assert log

2021-12-07T18:06:51Z

Normally, when we hit an assert, we print out all the assert data. However, in certain tests, when we trigger it from debugfs intentionally, that can be useless and confusing. Allow writing the string "nolog\n" to the fw_nmi and fw_restart files suppressing the assert dump as well as - in the case of fw_restart - the iwlwifi 0000:00:00.0: FW error in SYNC CMD REPLY_ERROR message. Signed-off-by: Johannes Berg Signed-off-by: Luca Coelho Link: https://lore.kernel.org/r/iwlwifi.20211204174546.75e29a2ab68d.Id3064feda2ce7a77c116c6d6e71ce5ff447c6e86@changeid Signed-off-by: Luca Coelho

wireless: iwlwifi: Fix a double free in iwl_txq_dyn_alloc_dma

2021-12-07T11:10:10Z

In iwl_txq_dyn_alloc_dma, txq->tfds is freed at first time by: iwl_txq_alloc()->goto err_free_tfds->dma_free_coherent(). But it forgot to set txq->tfds to NULL. Then the txq->tfds is freed again in iwl_txq_dyn_alloc_dma by: goto error->iwl_txq_gen2_free_memory()->dma_free_coherent(). My patch sets txq->tfds to NULL after the first free to avoid the double free. Fixes: 0cd1ad2d7fd41 ("iwlwifi: move all bus-independent TX functions to common code") Signed-off-by: Lv Yunlong Link: https://lore.kernel.org/r/20210403054755.4781-1-lyl2019@mail.ustc.edu.cn Signed-off-by: Luca Coelho

iwlwifi: queue: avoid memory leak in reset flow

2021-04-14T09:07:19Z

In case the device is stopped any usage of hw queues needs to be reallocated in fw due to fw reset after device stop, so all driver internal queue should also be freed, and if we don't free the next usage would leak the old memory and get in recover flows "iwlwifi 0000:00:03.0: dma_pool_destroy iwlwifi:bc" warning. Also warn about trying to reuse an internal allocated queue. Signed-off-by: Mordechay Goodstein Signed-off-by: Luca Coelho Link: https://lore.kernel.org/r/iwlwifi.20210411124417.c72d2f0355c4.Ia3baff633b9b9109f88ab379ef0303aa152c16bf@changeid Signed-off-by: Luca Coelho