Commit Graph

247 Commits

Author SHA1 Message Date
Rotem Kerem
11c5cc9ec6 wifi: iwlwifi: add iwl_trans_is_dead() API
Add iwl_trans_is_dead() function to be called by the op modes instead
of directly checking the trans status bits. This hides the trans
internal implementation details from callers.

Signed-off-by: Rotem Kerem <rotem.kerem@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250710212632.cd89d8013261.I214b7ffbabc393593fb57831d61d1a9ffa318a1e@changeid
2025-07-11 18:28:31 +03:00
Rotem Kerem
c7236b1f5a wifi: iwlwifi: add iwl_trans_device_enabled() API
add iwl_trans_device_enabled() function to be called by the op modes
instead of directly checking the trans status bits. This
hides the trans internal implementation details.

Signed-off-by: Rotem Kerem <rotem.kerem@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250710212632.bb957ba9e130.I6ab825caf41308fb0f7aa1c266f50457fd0c496e@changeid
2025-07-11 18:28:30 +03:00
Zheng Yongjun
c14bfe8d45 iwlwifi: fw: simplify the iwl_fw_dbg_collect_trig()
Simplify the return expression.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Link: https://patch.msgid.link/20201209093734.20836-1-zhengyongjun3@huawei.com
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
2025-06-25 10:57:33 +03:00
Or Ron
7a7cb2eb54 wifi: iwlwifi: phy periph read - flow modification
If for some reason the reading of phy prph fails, there is no reason to
keep reading them. Check the status abd break early in such case.

Signed-off-by: Or Ron <or.ron@intel.com>
Reviewed-by: Eilon Rinat <eilon.rinat@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250611222325.124ce6613edd.Ic1aad57cc6163f0551a3dafae048434f4a2fe7f5@changeid
2025-06-25 10:57:32 +03:00
Pagadala Yesu Anjaneyulu
cc8d9cbf26 wifi: iwlwifi: fw: Fix possible memory leak in iwl_fw_dbg_collect
Ensure descriptor is freed on error to avoid memory leak.

Signed-off-by: Pagadala Yesu Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250611222325.8158d15ec866.Ifa3e422c302397111f20a16da7509e6574bc19e3@changeid
2025-06-25 10:57:32 +03:00
Johannes Berg
015b5fee8f wifi: iwlwifi: dbg: fix dump trigger split check
Evidently, I confused the fields here, apply_policy should
be checked for IWL_FW_INI_APPLY_POLICY_SPLIT_DUMP_RESET.
Fix that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Eilon Rinat <eilon.rinat@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250510214621.c802d5cc1312.I0cf5d74f91349499ab35eef0ebdc604961e492ef@changeid
2025-05-12 17:15:35 +03:00
Johannes Berg
857ecb8524 wifi: iwlwifi: cfg: move MAC parameters to MAC data
There are a number of MAC parameters that are in the iwl_cfg
(which is the last config matched to the MAC/RF combination).
This isn't necessary, there are many more of those than MACs,
so move (most of) the data into the MAC family config struct.

Note that DCCM information remains for use by older devices,
and on 9000 series it'll be in struct iwl_cfg but be ignored
when the CRF is in a Qu/So platform.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://patch.msgid.link/20250508121306.1277801-15-miriam.rachel.korenblit@intel.com
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
2025-05-09 15:38:47 +03:00
Johannes Berg
c96a364910 wifi: iwlwifi: rename cfg_trans_params to mac_cfg
Since 9000 series devices, the devices are split into MAC and
CRF parts. Currently, "struct iwl_cfg" reflects some MAC and
some RF parameters, but we want to clean this up and move the
MAC data to what's now "struct iwl_cfg_trans_params". As the
first step, to reflect the intent, rename this structure.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://patch.msgid.link/20250508121306.1277801-9-miriam.rachel.korenblit@intel.com
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
2025-05-09 15:37:54 +03:00
Miri Korenblit
d73f8fb1d9 wifi: iwlwifi: debug: set CDB indication from CSR
In order to set the CDB indication in the dump meta data, we read it from
a specific prph register.
There is a known issue with that register in Xnj setups - in that case it
will always indicate CDB.
Instead of detecting the jacket case and then hardcode whether the CDB
indication should or shouldn't be set (according the CRF),
we can retrieve the CDB bit from the hw_rf_id (CSR_HW_RF_ID).
There is also no reason to do it conditionally only for ax210 / BnJ.
Cleanup the code a bit.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Link: https://patch.msgid.link/20250505215513.ea542a6c189e.I3d8cf5103b3747dfdd89985b45b592e419f97b63@changeid
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
2025-05-07 06:08:02 +03:00
Johannes Berg
d586137848 wifi: iwlwifi: trans: collect device information
Add a new device information 'info' substruct to the transport
that's const and can only be set by a special helper, and move
some information there.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250503224232.cd80cb55403c.Ic18524b66d655fad734bf97192a54d9cfa9fdf1f@changeid
2025-05-07 06:08:00 +03:00
Johannes Berg
bb6d4dc9d3 wifi: iwlwifi: fw: do reset handshake during assert if needed
Earlier, the firmware could only request the reset handshake is
done during the dump, if the dump was split. However, it's also
needed when the dump isn't split, in which case it must be done
before the dump. The firmware now advertises this requirement,
so do the handshake in the non-split case when asked for.

Rename apply policy ..._RESET_HANDSHAKE to ..._SPLIT_DUMP_RESET
to more clearly indicate that this specific dump needs to be
split, while the handshake requirement overall is now indicated
by the new capability flag.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250423091408.10adafedb74b.Ie3911db1ebbd196ae4b0de1c53012aa1de193c0d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-04-23 15:37:37 +02:00
Jakub Kicinski
2525e16a2b Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.14-rc6).

Conflicts:

net/ethtool/cabletest.c
  2bcf4772e4 ("net: ethtool: try to protect all callback with netdev instance lock")
  637399bf7e ("net: ethtool: netlink: Allow NULL nlattrs when getting a phy_device")

No Adjacent changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-06 13:03:35 -08:00
Johannes Berg
7774e39200 wifi: iwlwifi: fw: allocate chained SG tables for dump
The firmware dumps can be pretty big, and since we use single
pages for each SG table entry, even the table itself may end
up being an order-5 allocation. Build chained tables so that
we need not allocate a higher-order table here.

This could be improved and cleaned up, e.g. by using the SG
pool code or simply kvmalloc(), but all of that would require
also updating the devcoredump first since that frees it all,
so we need to be more careful. SG pool might also run against
the CONFIG_ARCH_NO_SG_CHAIN limitation, which is irrelevant
here.

Also use _devcd_free_sgtable() for the error paths now, much
simpler especially since it's in two places now.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250209143303.697c7a465ac9.Iea982df46b5c075bfb77ade36f187d99a70c63db@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-02-11 12:41:45 +01:00
Johannes Berg
85ccbdc4d3 wifi: iwlwifi: implement dump region split
Due to hardware design constraints, a reset handshake may be
necessary even when the firmware has already crashed, with
the dump descriptions indicating which parts should be done
before/after the handshake, if needed. Implement that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250205145347.9296e3113d42.Ifb32703fd06a644d08a86b7af1b990738e3c8134@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-02-11 11:59:48 +01:00
Johannes Berg
21e4d29ac0 wifi: iwlwifi: use correct IMR dump variable
We shouldn't dump the reg_data here which dumps the last
entry again, it should use the imr_reg_data.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250205145347.3313b18667d1.Iaa9ab66b1d397912a573525e060d39ea01b29d19@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-02-11 11:59:48 +01:00
Johannes Berg
c9afb4cf6d wifi: iwlwifi: fw: make iwl_send_dbg_dump_complete_cmd() static
It's only used in the same file, so can be static.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250205145347.319b66c00676.I3c06d6c2ee5850a5a89feff7d770e557fd625a6d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-02-11 11:59:47 +01:00
Emmanuel Grumbach
094513f8a2 wifi: iwlwifi: clear trans->state earlier upon error
When the firmware crashes, we first told the op_mode and only then,
changed the transport's state. This is a problem if the op_mode's
nic_error() handler needs to send a host command: it'll see that the
transport's state still reflects that the firmware is alive.

Today, this has no consequences since we set the STATUS_FW_ERROR bit and
that will prevent sending host commands. iwl_fw_dbg_stop_restart_recording
looks at this bit to know not to send a host command for example.

To fix the hibernation, we needed to reset the firmware without having
an error and checking STATUS_FW_ERROR to see whether the firmware is
alive will no longer hold, so this change is necessary as well.

Change the flow a bit.
Change trans->state before calling the op_mode's nic_error() method and
check trans->state instead of STATUS_FW_ERROR. This will keep the
current behavior of iwl_fw_dbg_stop_restart_recording upon firmware
error, and it'll allow us to call iwl_fw_dbg_stop_restart_recording
safely even if STATUS_FW_ERROR is clear, but yet, the firmware is not
alive.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20240825191257.9d7427fbdfd7.Ia056ca57029a382c921d6f7b6a6b28fc480f2f22@changeid
[I missed this was a dependency for the hibernation fix, changed
 the commit message a bit accordingly]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-08-27 09:54:24 +02:00
Yedidya Benshimol
0d91a2bfc3 wifi: iwlwifi: remove struct iwl_trans_ops
This was needed when we had multiple types of transports. Now we only
have pcie, so there is no need for this ops.
Cleanup the code such as the different trans APIs will call the pcie
function directly, instead of calling the callback,
and remove struct iwl_trans_ops.

Signed-off-by: Yedidya Benshimol <yedidya.ben.shimol@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240605140327.8315ff64f9f3.Ifdbc1f26d49766f7de553dcb5f613885f4ee65cc@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-06-12 13:04:27 +02:00
Daniel Gabay
9875b54762 wifi: iwlwifi: Ensure prph_mac dump includes all addresses
In prph_mac_iter, ensure that all required addresses are dumped
even if a read fails. Currently, if a read fails, the region dump
is stopped, preventing the creation of prph_mac.lst.

By dumping all addresses even if a read fails, we can accurately
determine which addresses were successfully read and which were not.

Signed-off-by: Daniel Gabay <daniel.gabay@intel.com>
Reviewed-by: Eilon Rinat <eilon.rinat@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240506095953.31fa9ce91a1c.Ia0c86f70c7a6874c15ffc6f8235aa88530208546@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-05-06 16:33:26 +02:00
Jakub Kicinski
8c73e8b595 Merge tag 'wireless-next-2024-04-03' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Kalle Valo says:

====================
wireless-next patches for v6.10

The first "new features" pull request for v6.10 with changes both in
stack and in drivers. The big thing in this pull request is that
wireless subsystem is now almost free of sparse warnings. There's only
one warning left in ath11k which was introduced in v6.9-rc1 and will
be fixed via the wireless tree.

Realtek drivers continue to improve, now we have support for RTL8922AE
and RTL8723CS devices. ath11k also has long waited support for P2P.

This time we have a small conflict in iwlwifi, Stephen has an example
merge resolution which should help with fixing the conflict:

https://lore.kernel.org/all/20240326100945.765b8caf@canb.auug.org.au/

Major changes:

rtw89
 * RTL8922AE Wi-Fi 7 PCI device support

rtw88
 * RTL8723CS SDIO device support

iwlwifi
 * don't support puncturing in 5 GHz
 * support monitor mode on passive channels
 * BZ-W device support
 * P2P with HE/EHT support

ath11k
 * P2P support for QCA6390, WCN6855 and QCA2066

* tag 'wireless-next-2024-04-03' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (122 commits)
  wifi: mt76: mt7915: workaround dubious x | !y warning
  wifi: mwl8k: Avoid -Wflex-array-member-not-at-end warnings
  wifi: ti: Avoid a hundred -Wflex-array-member-not-at-end warnings
  wifi: iwlwifi: mvm: fix check in iwl_mvm_sta_fw_id_mask
  net: rfkill: gpio: Convert to platform remove callback returning void
  wifi: mac80211: use kvcalloc() for codel vars
  wifi: iwlwifi: reconfigure TLC during HW restart
  wifi: iwlwifi: mvm: don't change BA sessions during restart
  wifi: iwlwifi: mvm: select STA mask only for active links
  wifi: iwlwifi: mvm: set wider BW OFDMA ignore correctly
  wifi: iwlwifi: Add support for LARI_CONFIG_CHANGE_CMD cmd v9
  wifi: iwlwifi: mvm: Declare HE/EHT capabilities support for P2P interfaces
  wifi: iwlwifi: mvm: Remove outdated comment
  wifi: iwlwifi: add support for BZ_W
  wifi: iwlwifi: Print a specific device name.
  wifi: iwlwifi: remove wrong CRF_IDs
  wifi: iwlwifi: remove devices that never came out
  wifi: iwlwifi: mvm: mark EMLSR disabled in cleanup iterator
  wifi: iwlwifi: mvm: fix active link counting during recovery
  wifi: iwlwifi: mvm: assign link STA ID lookups during restart
  ...
====================

Link: https://lore.kernel.org/r/20240403093625.CF515C433C7@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-03 19:36:57 -07:00
Johannes Berg
6decbba7f4 wifi: iwlwifi: fw: add clarifying comments about iwl_fwrt_dump_data
iwl_fw_dbg_collect_sync() unconditionally accesses 'trig' at
the beginning of the function, even though the data has an
inner union and 'trig' isn't necessarily always used, it can
be 'desc' instead. Add comments clarifying why this is OK,
that 'trig'/'desc' must be first in the struct and how in it
the use of the union's sub-structs is differentiated.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240319100755.49c3a39737cc.I91c588e0d66b49f0ee9103e8d4a0e501c2fd36d6@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-25 15:39:10 +01:00
Johannes Berg
045a5b645d wifi: iwlwifi: fw: don't always use FW dump trig
Since the dump_data (struct iwl_fwrt_dump_data) is a union,
it's not safe to unconditionally access and use the 'trig'
member, it might be 'desc' instead. Access it only if it's
known to be 'trig' rather than 'desc', i.e. if ini-debug
is present.

Cc: stable@vger.kernel.org
Fixes: 0eb50c674a ("iwlwifi: yoyo: send hcmd to fw after dump collection completes.")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240319100755.e2976bc58b29.I72fbd6135b3623227de53d8a2bb82776066cb72b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-25 15:23:07 +01:00
Johannes Berg
318b3fac34 wifi: iwlwifi: use system_unbound_wq for debug dump
This can take some time, so it's better to use the unbound
workqueue.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240204235836.75c8d2286f81.I478e9faf422f22ae66c0a113003fea83565c5692@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-08 15:00:46 +01:00
Johannes Berg
af4acac7ca Merge wireless into wireless-next
There are some changes coming to wireless-next that will
otherwise cause conflicts, pull wireless in first to be
able to resolve that when applying the individual changes
rather than having to do merge resolution later.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-08 09:58:25 +01:00
Johannes Berg
ec06e9b959 wifi: iwlwifi: fw: dbg: ensure correct config name sizes
This hard-codes the size, but it's not obvious why that's
correct. Use sizeof() and cross-check the two structs.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240128084842.58fcdea2ace7.I49cb1d7bdbea12085aada0c96ef42fcbcb3d2b38@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-02 13:47:46 +01:00
Johannes Berg
8a41c01740 wifi: iwlwifi: fix some kernel-doc issues
Add return descriptions, move description contents after
(parameter) sections and fix short descriptions.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240128084842.02ac00f67239.I4ad17097badfcbb82ccdb8c126f61a6f3170798e@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-02 13:47:46 +01:00
Johannes Berg
aa125f2290 wifi: iwlwifi: remove extra kernel-doc
This no longer exists, remove the kernel-doc.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240128102209.d2192d79bc09.Id9551728d618248dd471382a5283503a8976237a@changeid
2024-02-01 11:54:33 +02:00
Emmanuel Grumbach
6f3afc6c19 wifi: iwlwifi: mvm: use the new command to clear the internal buffer
The firmware can allow to clear the internal debug buffer. This can be
used to sanitize the data when requested to.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20231219215605.99aed3efbacb.Ib5bda1d1ff4bae476667737d4081ad066d1d7e6b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-12-21 20:35:17 +01:00
Emmanuel Grumbach
268712dc3b wifi: iwlwifi: mvm: add a debugfs hook to clear the monitor data
This can be used by the user space when it wants to clear the data we
collected so far for privacy reasons.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20231207044813.d5e97d5ec0d9.I7a5e836e6109e1fce7e6301dba8d1f28e60a5440@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-12-12 10:36:59 +01:00
Justin Stitt
70582e26f5 wifi: iwlwifi: fw: replace deprecated strncpy with strscpy_pad
strncpy() is deprecated for use on NUL-terminated destination strings
[1] and as such we should prefer more robust and less ambiguous string
interfaces.

Based on the deliberate `sizeof(dest) ... - 1` pattern we can see that
both dump_info->dev_human_readable and dump_info->bus_human_readable are
intended to be NUL-terminated.

Moreover, since this seems to cross the file boundary let's NUL-pad to
ensure no behavior change.

strscpy_pad() covers both the NUL-termination and NUL-padding, let's use
it.

Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20231019-strncpy-drivers-net-wireless-intel-iwlwifi-fw-dbg-c-v2-1-179b211a374b@google.com
2023-12-01 14:38:16 +02:00
Daniel Gabay
a634386cb8 wifi: iwlwifi: add support for SNPS DPHYIP region type
Add the required logic for parsing and dumping this new region.

Signed-off-by: Daniel Gabay <daniel.gabay@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20231017115047.c859539194e7.I965482de2871e28b09f4572f1aa87ae4e3b366be@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-10-23 12:48:28 +02:00
Miri Korenblit
66125c42fd wifi: iwlwifi: add support for new ini region types
YoYo introduces 2 new region types: prph mac and phy blocks.
The data in this regions consists of a list of
(base address, size) pairs.
This way we can set a block of consecutive registers by the
base address and the size, instead of a list of registers.
Add support for parsing and dumping these new region types

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20231004123422.0a10320f4259.I680ef6e16267d95329ee239f05d0999f5a1719ac@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-10-23 12:21:47 +02:00
Miri Korenblit
440a561c43 wifi: iwlwifi: Extract common prph mac/phy regions data dump logic
YoYo (debug data collection mechanism) is introducing 2 new types
of regions: prph mac/phy ranges.
These types will have a common logic of reading the data from the
device as the mac/phy prph has. Put it in a separate function so it can
be reused.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20231004123422.16f06414c65c.Ie911bc83a1e2f8fddb27b4c5bd24f933f8b674b6@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-10-23 12:21:47 +02:00
Gregory Greenman
fc2fe0a5e8 wifi: iwlwifi: fw: disable firmware debug asserts
Disable firmware debug asserts, which are used for internal
firmware testing purposes only.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230913145231.8feafd9b17be.Ia7bec82ac25897caab581692d67055aa1aca2ed2@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-09-13 16:11:40 +02:00
Miri Korenblit
eeef0168e3 wifi: iwlwifi: fw: send marker cmd before suspend cmd
This is needed to sync the times in the FW and driver logs

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230620125813.9c84322c41b5.Id13816b3ece103f88514a7523b22bb2b9dcc8ab7@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-21 14:02:14 +02:00
Johannes Berg
d4f1a50ca9 wifi: iwlwifi: unify checks for HW error values
The hardware, depending on which part fails or times out,
returns 0xA5A5A5A. or 0x5A5A5A5. with the lowest 4 bits
encoding some further reason/status. However, mostly we
don't really need to care about the exact reasons, so
unify the checks for this to avoid hardcoding those magic
values all over the driver.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230612184434.3e2959741a38.I1c297a53787b87e4e2b8f296c041921338573f4d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-14 12:32:18 +02:00
Johannes Berg
10f5ae2194 Merge wireless into wireless-next
There are a number of upcoming things in both the stack and
drivers that would otherwise conflict, so merge wireless to
wireless-next to be able to avoid those conflicts.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-07 19:49:36 +02:00
Mukesh Sisodiya
4784f3f923 wifi: iwlwifi: remove dead code in iwl_dump_ini_imr_get_size()
Remove the check for the IMR debug data size which
leads to dead code.

Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230531194630.58eec8d40729.Ifb7d64706eed45726db804f36e785283dff7adab@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-06 13:40:21 +02:00
Johannes Berg
d3ae69180b wifi: iwlwifi: fw: fix DBGI dump
The DBGI dump is (unsurprisingly) of type DBGI, not SRAM.
This leads to bad register accesses because the union is
built differently, there's no allocation ID, and thus the
allocation ID ends up being 0x8000.

Note that this was already wrong for DRAM vs. SMEM since
they use different parts of the union, but the allocation
ID is at the same place, so it worked.

Fix all of this but set the allocation ID in a way that
the offset calculation ends up without any offset.

Fixes: 34bc27783a ("iwlwifi: yoyo: fix DBGI_SRAM ini dump header.")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230514120631.19a302ae4c65.I12272599f7c1930666157b9d5e7f81fe9ec4c421@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-05-16 10:27:04 -07:00
Tom Rix
8ce437dd5b wifi: iwlwifi: fw: move memset before early return
Clang static analysis reports this representative issue
dbg.c:1455:6: warning: Branch condition evaluates to
a garbage value
  if (!rxf_data.size)
       ^~~~~~~~~~~~~~

This check depends on iwl_ini_get_rxf_data() to clear
rxf_data but the function can return early without
doing the clear.  So move the memset before the early
return.

Fixes: cc9b6012d3 ("iwlwifi: yoyo: use hweight_long instead of bit manipulating")
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230414130637.872a7175f1ff.I33802a77a91998276992b088fbe25f61c87c33ac@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-04-14 13:15:26 +02:00
Daniel Gabay
11195ab0d6 wifi: iwlwifi: yoyo: skip dump correctly on hw error
When NIC is in a bad state, reading data will return 28 bits as
0xa5a5a5a and the lowest 4 bits are not fixed value.

Mask these bits in a few places to skip the dump correctly.

Fixes: 89639e06d0 ("iwlwifi: yoyo: support for new DBGI_SRAM region")
Signed-off-by: Daniel Gabay <daniel.gabay@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230413213309.df6c0663179d.I36d8487b2419c6fefa65e5514855d94327c3b1eb@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-04-14 13:14:51 +02:00
Mukesh Sisodiya
74aae25013 wifi: iwlwifi: Fix the duplicate dump name
Driver is using the dump name generated first time in all
generated dump in case of NMI.
The validity of dump name should be with each dump created
and need to reset after each use.

Fixes: 834f920ef3 ("wifi: iwlwifi: yoyo: Add driver defined dump file name")
Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230413213309.6c987f820557.I924f2eae1eef2fe82c7a23be566551653d46f729@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-04-14 13:14:50 +02:00
Mukesh Sisodiya
51fa8c026e wifi: iwlwifi: yoyo: Add new tlv for dump file name extension
Add tlv in dump file for dump file name extension.

Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com>
Signed-off-by: Greenman, Gregory <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230314194113.ffc28212994e.Ie5f10709548497061f95c1634d942dd2facf72ec@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-03-15 13:25:12 +01:00
Mordechay Goodstein
97374513bb iwlwifi: dbg: check trigger data before access
Without trigger data set, no point in any collection.
so check that we have the info for collecting the 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.20220304131517.5fb34fb1f0eb.I4d7f2a4d162e80474540c5caf1194ed7d32977bc@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2022-03-10 09:23:29 +02:00
Mordechay Goodstein
f0c163382c iwlwifi: dbg: in sync mode don't call schedule
Today in the code we have two options for collecting data sync/schedule,
the two options call the same function and can lead to racing in free
resources after done.

So we call only one of two sync/schedule, and in case of sync only
call sync function without also schedule to immediately run as a side
job.

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.20220304131517.88574097ce1b.I1b42297619d638d677a2300ed9a95105c1262101@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2022-03-10 09:23:29 +02:00
Mukesh Sisodiya
a6d21729ff iwlwifi: yoyo: dump IMR DRAM only for HW and FW error
Support debug collection of the platform IMR memory region
only for HW and FW error. This region needs to be collected
as the last region.

Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220304131517.5b70e5ba9a41.I502f9b6179b97b163992729edd2b3c5c4ca9e311@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2022-03-10 09:23:28 +02:00
Minghao Chi (CGEL ZTE)
1132f6de0b iwlwifi/fw: use struct_size over open coded arithmetic
Replace zero-length array with flexible-array member and make use
of the struct_size() helper in kzalloc().

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Minghao Chi (CGEL ZTE) <chi.minghao@zte.com.cn>
Link: https://lore.kernel.org/r/20220216030841.1839666-1-chi.minghao@zte.com.cn
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2022-02-18 10:40:55 +02:00
Cai Huoqing
990c274256 iwlwifi: Make use of the helper macro LIST_HEAD()
Replace "struct list_head head = LIST_HEAD_INIT(head)" with
"LIST_HEAD(head)" to simplify the code.

Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Link: https://lore.kernel.org/r/20220209032322.37472-1-cai.huoqing@linux.dev
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2022-02-18 10:40:55 +02:00
Mukesh Sisodiya
0eb50c674a iwlwifi: yoyo: send hcmd to fw after dump collection completes.
Send a command to FW once the driver completes the dump collection
for the timepoint which requires the command to be send.

Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220210181930.b8c1228a0c0a.I71da6a799253650f3d0b181315de388cb9360e30@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2022-02-18 10:40:55 +02:00
Mukesh Sisodiya
9d200eddae iwlwifi: yoyo: support dump policy for the dump size
Support dump size limitation based on the TLV by firmware.
This is needed for limited memory systems so only the most
important dumps are sent by driver.

Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220210181930.d7e1ff264766.If2327fd890a453cdc9069d26220394d0b4e79743@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2022-02-18 10:40:55 +02:00