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21 commits

Author SHA1 Message Date
Johannes Berg
bb16ffd561 iwlwifi: use 4k queue size for Bz A-step
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 <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220304131517.10ea0e115d05.Idfb3706133bf3b15f1f68f1145e77e89947449d1@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2022-03-10 09:23:28 +02:00
Johannes Berg
227f25972c iwlwifi: support new queue allocation command
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 <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220210181930.acbf22ac2b66.I2bf38578c5ca1f7ffb2011a782f772db92fc4965@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2022-02-18 10:40:55 +02:00
Johannes Berg
85b17a33c8 iwlwifi: remove command ID argument from queue allocation
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 <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220210181930.8b352828f767.Ice4c91d8ea3e207914104e72801b87cd7f409ba7@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2022-02-18 10:40:54 +02:00
Johannes Berg
ba3d4acd96 iwlwifi: make iwl_txq_dyn_alloc_dma() return the txq
Use the ERR_PTR() machinery to return the queue or an
error, instead of having a separate out parameter.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220210181930.1f0c5d72fb89.Iefca56d535558b7a8d23204fd16129c17b6704b6@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2022-02-18 10:40:54 +02:00
Johannes Berg
d4530f6368 iwlwifi: avoid variable shadowing
Change a few places to not shadow variables.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220130115024.d53f2a7a9614.I7441559451d54b39dc0daeb4c31e5dce19d4d83e@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2022-02-18 10:40:52 +02:00
Mordechay Goodstein
d5399f1106 iwlwifi: cfg: add support for 1K BA queue
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 <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220128153014.16b43fe3e92f.I853c57648feee4b69ccb01ef4c75354377d60be2@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2022-02-18 10:40:50 +02:00
Johannes Berg
3827cb59b3 iwlwifi: avoid void pointer arithmetic
Avoid void pointer arithmetic since it's technically
undefined and causes warnings in some places that use
our code.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220128153014.e349104ecd94.Iadc937f475158b9437becdfefb361a97e7eaa934@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2022-02-18 10:40:50 +02:00
Johannes Berg
4b992db6eb iwlwifi: mvm: optionally suppress assert log
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 <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211204174546.75e29a2ab68d.Id3064feda2ce7a77c116c6d6e71ce5ff447c6e86@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-12-07 20:06:51 +02:00
Lv Yunlong
f973795a8d wireless: iwlwifi: Fix a double free in iwl_txq_dyn_alloc_dma
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: 0cd1ad2d7f ("iwlwifi: move all bus-independent TX functions to common code")
Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Link: https://lore.kernel.org/r/20210403054755.4781-1-lyl2019@mail.ustc.edu.cn
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-12-07 13:10:10 +02:00
Mordechay Goodstein
4cf2f5904d iwlwifi: queue: avoid memory leak in reset flow
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 <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210411124417.c72d2f0355c4.Ia3baff633b9b9109f88ab379ef0303aa152c16bf@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-04-14 12:07:19 +03:00
Johannes Berg
fb54b86339 iwlwifi: remove remaining software checksum code
After the removal of the software checksum code for the
A-MSDU path that we had for testing, the csum_skb variable
stuck around. Remove it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210411124417.280f268ae679.Iad455b6c91e427c9f74963bbd3eb0ce743aaac53@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-04-14 12:07:18 +03:00
Mordechay Goodstein
9cd3de8106 iwlwifi: queue: add fake tx time point
In case we get TX sequence number out of range, trigger fake tx time
point to collect FW debug data.

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210142629.e098026e83ad.I8870fcbc504a74cab6a50134b3df1131d6da946d@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-02-10 14:39:40 +02:00
Kalle Valo
b7e6725df7 iwlwifi patches intended for v5.12
* Check FW notification sizes for robustness;
 * Improvements in the NAPI implementation;
 * Implement a workaround for CCA-EXT;
 * Add new FW API support;
 * Fix a CSA bug;
 * Implement PHY integration version parsing;
 * A bit of refactoring;
 * One more CSA bug fix, this time in the AP side;
 * Support for new So devices and a bit of reorg;
 * Per Platform Antenna Gain (PPAG) fixes and improvements;
 * Improvements in the debug framework;
 * Some other clean-ups and small fixes.
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Merge tag 'iwlwifi-next-for-kalle-2021-02-05' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

iwlwifi patches intended for v5.12

* Check FW notification sizes for robustness;
* Improvements in the NAPI implementation;
* Implement a workaround for CCA-EXT;
* Add new FW API support;
* Fix a CSA bug;
* Implement PHY integration version parsing;
* A bit of refactoring;
* One more CSA bug fix, this time in the AP side;
* Support for new So devices and a bit of reorg;
* Per Platform Antenna Gain (PPAG) fixes and improvements;
* Improvements in the debug framework;
* Some other clean-ups and small fixes.

# gpg: Signature made Fri 05 Feb 2021 12:04:21 PM EET using RSA key ID 1A3CC5FA
# gpg: Good signature from "Luciano Roth Coelho (Luca) <luca@coelho.fi>"
# gpg:                 aka "Luciano Roth Coelho (Intel) <luciano.coelho@intel.com>"
2021-02-08 18:52:00 +02:00
Mordechay Goodstein
13f028b4f7 iwlwifi: tx: move handing sync/async host command to trans
Handling host commands in a sync way is not directly related to PCIe
transport, and can serve as common logic for any transport, so move
it to trans layer.

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210117164916.fde99af4e0f7.I4cab95919eb35cc5bfb26d32dcf5e15419d0e0ef@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-02-05 11:55:19 +02:00
Johannes Berg
0bed6a2a14 iwlwifi: queue: bail out on invalid freeing
If we find an entry without an SKB, we currently continue, but
that will just result in an infinite loop since we won't increment
the read pointer, and will try the same thing over and over again.
Fix this.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210122144849.abe2dedcc3ac.Ia6b03f9eeb617fd819e56dd5376f4bb8edc7b98a@changeid
2021-01-25 15:59:27 +02:00
Emmanuel Grumbach
0f8d5656b3 iwlwifi: queue: don't crash if txq->entries is NULL
The code was really awkward, we would first dereference
txq->entries when calling iwl_txq_genX_tfd_unmap and then
we would check that txq->entries is non-NULL.
Fix that by exiting if txq->entries is NULL.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130252.173359fc236d.I75c7c2397d20df8d7fbc24cb16a5232d5c551889@changeid
2021-01-25 15:53:02 +02:00
Johannes Berg
8e99ea8d09 iwlwifi: use SPDX tags
Use SPDX tags instead of the long copyright notices.  Also cleanup
some duplicate copyright notices and combine the years where possible.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201210000603.481bcb512a6f.I8146abe5a637079e7336209f23cb26af98b12b31@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-12-10 00:15:31 +02:00
Mordechay Goodstein
a445098058 iwlwifi: move reclaim flows to the queue file
Reclaim flows are bus-independent TX functions so we move
it to the common place handling bus-independent tx operations

used spatch rule

@@
@@
(
-iwl_trans_pcie_freeze_txq_timer
+iwl_trans_txq_freeze_timer
|
-iwl_trans_pcie_set_q_ptrs
+iwl_trans_txq_set_q_ptrs
|
-iwl_pcie_txq_free_tfd
+iwl_txq_free_tfd
|
-iwl_pcie_txq_progress
+iwl_txq_progress
|
-iwl_trans_pcie_reclaim
+iwl_trans_txq_reclaim
)

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201209231352.40723e92b6bf.I83cf71d9c6d989ec42f52b353f1d33f32540db59@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-12-10 00:11:17 +02:00
Mordechay Goodstein
2f8cfcc43d iwlwifi: remove all queue resources before free
Currently calling iwl_txq_dyn_free only deletes the queue memory/DMA
but any active timers are not dealt with.

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201209231351.69231238667c.I04c6d012d9244a73261685f8fc797a26e5c961d6@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-12-10 00:11:15 +02:00
Mordechay Goodstein
0179bfff97 iwlwifi: pcie: make iwl_pcie_txq_update_byte_cnt_tbl bus independent
To avoid duplicating code we need to call iwl_pcie_txq_update_byte_cnt_tbl
function from non bus independent code so make it bus independent.

Used spatch rule

@r1@
struct iwl_trans_pcie *trans_pcie;
@@
(
-trans_pcie->scd_bc_tbls
+trans->txqs.scd_bc_tbls
|
-iwl_pcie_txq_update_byte_cnt_tbl
+iwl_txq_gen1_update_byte_cnt_tbl
|
-iwl_pcie_txq_inval_byte_cnt_tbl
+iwl_txq_gen1_inval_byte_cnt_tbl
|
-iwl_pcie_tfd_unmap
+iwl_txq_gen1_tfd_unmap
|
-iwl_pcie_tfd_tb_get_addr
+iwl_txq_gen1_tfd_tb_get_addr
|
-iwl_pcie_tfd_tb_get_len
+iwl_txq_gen1_tfd_tb_get_len
|
-iwl_pcie_tfd_get_num_tbs
+iwl_txq_gen1_tfd_get_num_tbs
)

/* clean all new unused variables */
@ depends on r1@
type T;
identifier i;
expression E;
@@
- T i = E;
 ... when != i

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200930191738.8d33e791ec8c.Ica35125ed640aa3aa1ecc38fb5e8f1600caa8df6@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-10-01 22:02:23 +03:00
Mordechay Goodstein
0cd1ad2d7f iwlwifi: move all bus-independent TX functions to common code
After moving out all Tx fields not related to pcie-bus
it's time to move the code to a common place.

We also rename all pcie functions name to txq.

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200930161256.3947a5276003.I3fe1bec2b25a965a49532df288f47b8b59eb1500@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-10-01 22:00:57 +03:00