Commit Graph

60 Commits

Author SHA1 Message Date
Bjorn Helgaas
41469ff94c wifi: Fix typos
Fix typos in comments and error messages.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20250723201741.2908456-1-helgaas@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-07-24 09:05:31 +02:00
Jeff Chen
9868c4ce94 wifi: mwifiex: Fix RF calibration data download from file
This patch resolves an issue where RF calibration data from a
file could not be downloaded to the firmware. The feature to
download calibration data from a file was broken by the commit:
d39fbc8895.

The issue arose because the function `mwifiex_cmd_cfg_data()`
was modified in a way that prevented proper handling of
file-based calibration data. While this patch restores the ability
to download RF calibration data from a file, it may inadvertently
break the feature to download calibration data from the device
tree. This is because the function `mwifiex_dnld_dt_cfgdata()`,
which also relies on `mwifiex_cmd_cfg_data()`, is still used for
device tree-based calibration data downloads.

Fixes: d39fbc8895 ("mwifiex: remove cfg_data construction")
Signed-off-by: Jeff Chen <jeff.chen_1@nxp.com>
Link: https://patch.msgid.link/20250318050739.2239376-3-jeff.chen_1@nxp.com
[add newline for shorter lines]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-03-18 10:27:34 +01:00
Alper Nebi Yasak
d241a139c2 wifi: mwifiex: Fix memcpy() field-spanning write warning in mwifiex_config_scan()
Replace one-element array with a flexible-array member in `struct
mwifiex_ie_types_wildcard_ssid_params` to fix the following warning
on a MT8173 Chromebook (mt8173-elm-hana):

[  356.775250] ------------[ cut here ]------------
[  356.784543] memcpy: detected field-spanning write (size 6) of single field "wildcard_ssid_tlv->ssid" at drivers/net/wireless/marvell/mwifiex/scan.c:904 (size 1)
[  356.813403] WARNING: CPU: 3 PID: 742 at drivers/net/wireless/marvell/mwifiex/scan.c:904 mwifiex_scan_networks+0x4fc/0xf28 [mwifiex]

The "(size 6)" above is exactly the length of the SSID of the network
this device was connected to. The source of the warning looks like:

    ssid_len = user_scan_in->ssid_list[i].ssid_len;
    [...]
    memcpy(wildcard_ssid_tlv->ssid,
           user_scan_in->ssid_list[i].ssid, ssid_len);

There is a #define WILDCARD_SSID_TLV_MAX_SIZE that uses sizeof() on this
struct, but it already didn't account for the size of the one-element
array, so it doesn't need to be changed.

Fixes: 5e6e3a92b9 ("wireless: mwifiex: initial commit for Marvell mwifiex driver")
Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Acked-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20241007222301.24154-1-alpernebiyasak@gmail.com
2024-10-17 19:50:17 +03:00
Gustavo A. R. Silva
498365e52b wifi: mwifiex: Fix memcpy() field-spanning write warning in mwifiex_cmd_802_11_scan_ext()
Replace one-element array with a flexible-array member in
`struct host_cmd_ds_802_11_scan_ext`.

With this, fix the following warning:

elo 16 17:51:58 surfacebook kernel: ------------[ cut here ]------------
elo 16 17:51:58 surfacebook kernel: memcpy: detected field-spanning write (size 243) of single field "ext_scan->tlv_buffer" at drivers/net/wireless/marvell/mwifiex/scan.c:2239 (size 1)
elo 16 17:51:58 surfacebook kernel: WARNING: CPU: 0 PID: 498 at drivers/net/wireless/marvell/mwifiex/scan.c:2239 mwifiex_cmd_802_11_scan_ext+0x83/0x90 [mwifiex]

Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Closes: https://lore.kernel.org/linux-hardening/ZsZNgfnEwOcPdCly@black.fi.intel.com/
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/ZsZa5xRcsLq9D+RX@elsanto
2024-09-09 15:09:00 +03:00
Sascha Hauer
ca0107c3aa wifi: mwifiex: add support for WPA-PSK-SHA256
This adds support for the WPA-PSK AKM suite with SHA256 as hashing
method (WPA-PSK-SHA256). Tested with a wpa_supplicant provided AP
using key_mgmt=WPA-PSK-SHA256.

Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20240717-mwifiex-wpa-psk-sha256-v2-2-eb53d5082b62@pengutronix.de
Acked-by: Brian Norris <briannorris@chromium.org>
Link: https://lore.kernel.org/r/20240723-mwifiex-wpa-psk-sha256-v3-3-025168a91da1@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20240805-mwifiex-wpa-psk-sha256-v4-3-e1eee80508e6@pengutronix.de
2024-08-10 10:35:28 +03:00
David Lin
9588469d06 wifi: mwifiex: add host mlme for AP mode
Add host based MLME to enable WPA3 functionalities in AP mode.
This feature required a firmware with the corresponding V2 Key API
support. The feature (WPA3) is currently enabled and verified only
on IW416. Also, verified no regression with change when host MLME
is disabled.

Signed-off-by: David Lin <yu-hao.lin@nxp.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Acked-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20240704033001.603419-3-yu-hao.lin@nxp.com
2024-08-04 11:56:00 +03:00
David Lin
36995892c2 wifi: mwifiex: add host mlme for client mode
Add host based MLME to enable WPA3 functionalities in client mode.
This feature required a firmware with the corresponding V2 Key API
support. The feature (WPA3) is currently enabled and verified only
on IW416. Also, verified no regression with change when host MLME
is disabled.

Signed-off-by: David Lin <yu-hao.lin@nxp.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Acked-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20240704033001.603419-2-yu-hao.lin@nxp.com
2024-08-04 11:56:00 +03:00
Kees Cook
14ddc470ba wifi: mwifiex: Refactor 1-element array into flexible array in struct mwifiex_ie_types_chan_list_param_set
struct mwifiex_ie_types_chan_list_param_set::chan_scan_param is treated
as a flexible array, so convert it into one so that it doesn't trip
the array bounds sanitizer[1]. Only a few places were using sizeof()
on the whole struct, so adjust those to follow the calculation pattern
to avoid including the trailing single element.

Examining binary output differences doesn't appear to show any literal
size values changing, though it is obfuscated a bit by the compiler
adjusting register usage and stack spill slots, etc.

Link: https://github.com/KSPP/linux/issues/51 [1]
Cc: Brian Norris <briannorris@chromium.org>
Cc: Kalle Valo <kvalo@kernel.org>
Cc: Dmitry Antipov <dmantipov@yandex.ru>
Cc: Johannes Berg <johannes.berg@intel.com>
Cc: zuoqilin <zuoqilin@yulong.com>
Cc: Ruan Jinjie <ruanjinjie@huawei.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: Gustavo A. R. Silva <gustavoars@kernel.org>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240207103024.make.423-kees@kernel.org
2024-02-12 17:37:59 +02:00
David Lin
f0dd488e11 wifi: mwifiex: configure BSSID consistently when starting AP
AP BSSID configuration is missing at AP start.  Without this fix, FW returns
STA interface MAC address after first init.  When hostapd restarts, it gets MAC
address from netdev before driver sets STA MAC to netdev again. Now MAC address
between hostapd and net interface are different causes STA cannot connect to
AP.  After that MAC address of uap0 mlan0 become the same. And issue disappears
after following hostapd restart (another issue is AP/STA MAC address become the
same).

This patch fixes the issue cleanly.

Signed-off-by: David Lin <yu-hao.lin@nxp.com>
Fixes: 12190c5d80 ("mwifiex: add cfg80211 start_ap and stop_ap handlers")
Cc: stable@vger.kernel.org
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Tested-by: Rafael Beims <rafael.beims@toradex.com> # Verdin iMX8MP/SD8997 SD
Acked-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20231215005118.17031-1-yu-hao.lin@nxp.com
2023-12-15 15:24:49 +02:00
Gustavo A. R. Silva
c7847241de wifi: mwifiex: Replace one-element array with flexible-array member in struct mwifiex_ie_types_rxba_sync
One-element and zero-length arrays are deprecated. So, replace
one-element array in struct mwifiex_ie_types_rxba_sync with
flexible-array member, and refactor the rest of the code, accordingly.

This results in no differences in binary output.

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/79c801c69c8beece2f80502c60166036d3c047cc.1692931954.git.gustavoars@kernel.org
2023-09-04 20:16:12 +03:00
Gustavo A. R. Silva
235fd607c6 wifi: mwifiex: Replace one-element array with flexible-array member
One-element arrays are deprecated, and we are replacing them with flexible
array members instead. So, replace one-element array with flexible-array
member in struct mwifiex_ie_types_rates_param_set.

These are the only binary differences I see after the change:

mwifiex.o
_@@ -50154,7 +50154,7 @@
                        23514: R_X86_64_32S     kmalloc_caches+0x50
    23518:      call   2351d <mwifiex_scan_networks+0x11d>
                        23519: R_X86_64_PLT32   __tsan_read8-0x4
-   2351d:      mov    $0x225,%edx
+   2351d:      mov    $0x224,%edx
    23522:      mov    $0xdc0,%esi
    23527:      mov    0x0(%rip),%rdi        # 2352e <mwifiex_scan_networks+0x12e>
                        2352a: R_X86_64_PC32    kmalloc_caches+0x4c
scan.o
_@@ -5582,7 +5582,7 @@
                        4394: R_X86_64_32S      kmalloc_caches+0x50
     4398:      call   439d <mwifiex_scan_networks+0x11d>
                        4399: R_X86_64_PLT32    __tsan_read8-0x4
-    439d:      mov    $0x225,%edx
+    439d:      mov    $0x224,%edx
     43a2:      mov    $0xdc0,%esi
     43a7:      mov    0x0(%rip),%rdi        # 43ae <mwifiex_scan_networks+0x12e>
                        43aa: R_X86_64_PC32     kmalloc_caches+0x4c

and the reason for that is the following line:

drivers/net/wireless/marvell/mwifiex/scan.c:
1517         scan_cfg_out = kzalloc(sizeof(union mwifiex_scan_cmd_config_tlv),
1518                                GFP_KERNEL);

sizeof(union mwifiex_scan_cmd_config_tlv) is now one-byte smaller due to the
flex-array transformation:

  46 union mwifiex_scan_cmd_config_tlv {
  47         /* Scan configuration (variable length) */
  48         struct mwifiex_scan_cmd_config config;
  49         /* Max allocated block */
  50         u8 config_alloc_buf[MAX_SCAN_CFG_ALLOC];
  51 };

Notice that MAX_SCAN_CFG_ALLOC is defined in terms of
sizeof(struct mwifiex_ie_types_rates_param_set), see:

  26 /* Memory needed to store supported rate */
  27 #define RATE_TLV_MAX_SIZE   (sizeof(struct mwifiex_ie_types_rates_param_set) \
  28                                 + HOSTCMD_SUPPORTED_RATES)

  37 /* Maximum memory needed for a mwifiex_scan_cmd_config with all TLVs at max */
  38 #define MAX_SCAN_CFG_ALLOC (sizeof(struct mwifiex_scan_cmd_config)        \
  39                                 + sizeof(struct mwifiex_ie_types_num_probes)   \
  40                                 + sizeof(struct mwifiex_ie_types_htcap)       \
  41                                 + CHAN_TLV_MAX_SIZE                 \
  42                                 + RATE_TLV_MAX_SIZE                 \
  43                                 + WILDCARD_SSID_TLV_MAX_SIZE)

This helps with the ongoing efforts to tighten the FORTIFY_SOURCE
routines on memcpy() and help us make progress towards globally
enabling -fstrict-flex-arrays=3 [1].

Link: https://github.com/KSPP/linux/issues/79
Link: https://github.com/KSPP/linux/issues/252
Link: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/602902.html [1]
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/Y9xkjXeElSEQ0FPY@work
2023-02-13 18:53:24 +02:00
Gustavo A. R. Silva
7fcae8f7f8 wifi: mwifiex: Replace one-element arrays with flexible-array members
One-element arrays are deprecated, and we are replacing them with flexible
array members instead. So, replace one-element arrays with flexible-array
members in multiple structures.

This helps with the ongoing efforts to tighten the FORTIFY_SOURCE
routines on memcpy() and help us make progress towards globally
enabling -fstrict-flex-arrays=3 [1].

This results in no differences in binary output.

Link: https://github.com/KSPP/linux/issues/79
Link: https://github.com/KSPP/linux/issues/256
Link: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/602902.html [1]
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/Y9xkECG3uTZ6T1dN@work
2023-02-13 18:52:56 +02:00
Lukas Wunner
7715d79553 wifi: mwifiex: Support firmware hotfix version in GET_HW_SPEC responses
Support the firmware hotfix version in GET_HW_SPEC responses to avoid an
irritating "Unknown api_id: 5" message on probe.

Based on this commit in NXP's GPLv2-licensed out-of-tree driver:
https://github.com/nxp-imx/mwifiex/commit/27fd8ecca504

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Cc: Sherry Sun <sherry.sun@nxp.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/111c7ee895f12d951e95a2edcd06d87ca26a7d0f.1674827105.git.lukas@wunner.de
2023-02-13 18:51:35 +02:00
Johannes Berg
4cf4cf6eb0 wifi: mwifiex: fix array of flexible structures warnings
There are two, just change them to have a "u8 data[]" type
member, and add casts where needed. No binary changes.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220904212910.2c885310ebee.If7177ea588b56c405eee6e6df595e9efccdfb99a@changeid
2022-09-22 09:08:53 +03:00
Thomas Gleixner
828c91f793 treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_391.RULE
Based on the normalized pattern:

    this software file (the file ) is distributed by nxp under the terms
    of the gnu general public license version 2 june 1991 (the license )
    you may use redistribute and/or modify this file in accordance with
    the terms and conditions of the license a copy of which is available
    by writing to the free software foundation inc 51 franklin street
    fifth floor boston ma 02110-1301 usa or on the worldwide web at
    http://www gnu org/licenses/old-licenses/gpl-2 0 txt  the file is
    distributed as-is without warranty of any kind and the implied
    warranties of merchantability or fitness for a particular purpose are
    expressly disclaimed the license provides additional details about
    this warranty disclaimer

extracted by the scancode license scanner the SPDX license identifier

    GPL-2.0-only

has been chosen to replace the boilerplate/reference.

Reviewed-by: Allison Randal <allison@lohutok.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 14:51:36 +02:00
Jonas Dreßler
2d1d7091dd mwifiex: Use a define for firmware version string length
Since the version string we get from the firmware is always 128
characters long, use a define for this size instead of having the number
128 copied all over the place.

Signed-off-by: Jonas Dreßler <verdre@v0yd.nl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211103201800.13531-2-verdre@v0yd.nl
2021-11-26 18:29:37 +02:00
Kees Cook
59c668d700 mwifiex: Avoid memset() over-write of WEP key_material
In preparation for FORTIFY_SOURCE performing compile-time and run-time
field bounds checking for memset(), avoid intentionally writing across
neighboring array fields.

When preparing to call mwifiex_set_keyparamset_wep(), key_material is
treated very differently from its structure layout (which has only a
single struct mwifiex_ie_type_key_param_set). Instead, add a new type to
the union so memset() can correctly reason about the size of the
structure.

Note that the union ("params", 196 bytes) containing key_material was
not large enough to hold the target of this memset(): sizeof(struct
mwifiex_ie_type_key_param_set) == 60, NUM_WEP_KEYS = 4, so 240
bytes, or 44 bytes past the end of "params". The good news is that
it appears that the command buffer, as allocated, is 2048 bytes
(MWIFIEX_SIZE_OF_CMD_BUFFER), so no neighboring memory appears to be
getting clobbered.

Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210617171522.3410951-1-keescook@chromium.org
2021-06-22 18:24:50 +03:00
David S. Miller
3ab0a7a0c3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Two minor conflicts:

1) net/ipv4/route.c, adding a new local variable while
   moving another local variable and removing it's
   initial assignment.

2) drivers/net/dsa/microchip/ksz9477.c, overlapping changes.
   One pretty prints the port mode differently, whilst another
   changes the driver to try and obtain the port mode from
   the port node rather than the switch node.

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-22 16:45:34 -07:00
Nathan Chancellor
6a953dc4db mwifiex: Remove unnecessary braces from HostCmd_SET_SEQ_NO_BSS_INFO
A new warning in clang points out when macro expansion might result in a
GNU C statement expression. There is an instance of this in the mwifiex
driver:

drivers/net/wireless/marvell/mwifiex/cmdevt.c:217:34: warning: '}' and
')' tokens terminating statement expression appear in different macro
expansion contexts [-Wcompound-token-split-by-macro]
        host_cmd->seq_num = cpu_to_le16(HostCmd_SET_SEQ_NO_BSS_INFO
                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/marvell/mwifiex/fw.h:519:46: note: expanded from
macro 'HostCmd_SET_SEQ_NO_BSS_INFO'
        (((type) & 0x000f) << 12);                  }
                                                    ^

This does not appear to be a real issue. Removing the braces and
replacing them with parentheses will fix the warning and not change the
meaning of the code.

Fixes: 5e6e3a92b9 ("wireless: mwifiex: initial commit for Marvell mwifiex driver")
Link: https://github.com/ClangBuiltLinux/linux/issues/1146
Reported-by: Andy Lavr <andy.lavr@gmail.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200901070834.1015754-1-natechancellor@gmail.com
2020-09-07 11:28:35 +03:00
Maximilian Luz
4afc850e2e mwifiex: Increase AES key storage size to 256 bits
Following commit e186967865 ("mwifiex: Prevent memory corruption
handling keys") the mwifiex driver fails to authenticate with certain
networks, specifically networks with 256 bit keys, and repeatedly asks
for the password. The kernel log repeats the following lines (id and
bssid redacted):

    mwifiex_pcie 0000:01:00.0: info: trying to associate to '<id>' bssid <bssid>
    mwifiex_pcie 0000:01:00.0: info: associated to bssid <bssid> successfully
    mwifiex_pcie 0000:01:00.0: crypto keys added
    mwifiex_pcie 0000:01:00.0: info: successfully disconnected from <bssid>: reason code 3

Tracking down this problem lead to the overflow check introduced by the
aforementioned commit into mwifiex_ret_802_11_key_material_v2(). This
check fails on networks with 256 bit keys due to the current storage
size for AES keys in struct mwifiex_aes_param being only 128 bit.

To fix this issue, increase the storage size for AES keys to 256 bit.

Fixes: e186967865 ("mwifiex: Prevent memory corruption handling keys")
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Reported-by: Kaloyan Nikolov <konik98@gmail.com>
Tested-by: Kaloyan Nikolov <konik98@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Tested-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200825153829.38043-1-luzmaximilian@gmail.com
2020-08-27 16:16:04 +03:00
Pali Rohár
982d7287f8 mwifiex: Add support for NL80211_ATTR_MAX_AP_ASSOC_STA
SD8997 firmware sends TLV_TYPE_MAX_CONN with struct hw_spec_max_conn to
inform kernel about maximum number of p2p connections and stations in AP
mode.

During initialization of SD8997 wifi chip kernel prints warning:

  mwifiex_sdio mmc0:0001:1: Unknown GET_HW_SPEC TLV type: 0x217

This patch adds support for parsing TLV_TYPE_MAX_CONN (0x217) and sets
appropriate cfg80211 member 'max_ap_assoc_sta' from retrieved structure.

It allows userspace to retrieve NL80211_ATTR_MAX_AP_ASSOC_STA attribute.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200521123559.29028-1-pali@kernel.org
2020-05-29 20:41:45 +03:00
Pali Rohár
86cffb2c0a mwifiex: Parse all API_VER_ID properties
During initialization of SD8997 wifi chip kernel prints warnings:

  mwifiex_sdio mmc0:0001:1: Unknown api_id: 3
  mwifiex_sdio mmc0:0001:1: Unknown api_id: 4

This patch adds support for parsing all api ids provided by SD8997
firmware.

Signed-off-by: Pali Rohár <pali@kernel.org>
Acked-by: Ganapathi Bhat <ganapathi.bhat@nxp.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200521123444.28957-1-pali@kernel.org
2020-05-29 20:40:53 +03:00
Gustavo A. R. Silva
2a6be797d2 wireless: marvell: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:

struct foo {
        int stuff;
        struct boo array[];
};

By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.

Also, notice that, dynamic memory allocations won't be affected by
this change:

"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]

This issue was found with the help of Coccinelle.

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Ganapathi Bhat <ganapathi.bhat@nxp.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200225020413.GA8057@embeddedor
2020-03-23 19:11:09 +02:00
Ganapathi Bhat
932183aa35 mwifiex: change license text from MARVELL to NXP
As of 6-DEC-2019, NXP has acquired Marvell’s Wireless business
unit. This change is to update the license text accordingly.

Signed-off-by: James Cao <zheng.cao@nxp.com>
Signed-off-by: Cathy Luo <xiaohua.luo@nxp.com>
Signed-off-by: Ganapathi Bhat <ganapathi.bhat@nxp.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2020-02-14 14:41:54 +02:00
Brian Norris
63d7ef3610 mwifiex: Don't abort on small, spec-compliant vendor IEs
Per the 802.11 specification, vendor IEs are (at minimum) only required
to contain an OUI. A type field is also included in ieee80211.h (struct
ieee80211_vendor_ie) but doesn't appear in the specification. The
remaining fields (subtype, version) are a convention used in WMM
headers.

Thus, we should not reject vendor-specific IEs that have only the
minimum length (3 bytes) -- we should skip over them (since we only want
to match longer IEs, that match either WMM or WPA formats). We can
reject elements that don't have the minimum-required 3 byte OUI.

While we're at it, move the non-standard subtype and version fields into
the WMM structs, to avoid this confusion in the future about generic
"vendor header" attributes.

Fixes: 685c9b7750 ("mwifiex: Abort at too short BSS descriptor element")
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-06-24 16:22:50 +03:00
Ganapathi Bhat
ae30bdaa4c mwifiex: skip sending GT_REKEY_OFFLOAD_CFG if firmware has no support
If firmware does not support embedded supplicant, then it in turn
will not support GT rekey offloading. If this is the case, then
driver must not advertise WOWLAN flags related to GTK rekey and
it must also skip sending the GT_REKEY_OFFLOAD_CFG command.

Signed-off-by: Shrenik Shikhare <shrenik@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-29 10:23:50 +03:00
Ganapathi Bhat
28bf8312a9 mwifiex: get_channel from firmware
At present driver gets chan_type by referring to
IEEE80211_HT_PARAM_CHA_SEC_OFFSET, in ASSOC response. Sometimes
AP shows IEEE80211_HT_PARAM_CHA_SEC_OFFSET as above/below in
assoc response, even if the association is done on HT20 channel
only. So, it will be accurate to get econdary channel offset from
firmware.

Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-13 18:53:47 +02:00
Xinming Hu
18d6050133 mwifiex: debugfs: trigger device dump for usb interface
This patch extend device_dump debugfs function to make it
works for usb interface.

For command timeouts, USB firmware will automatically emit
firmware dump events, so we don't implement device_dump().

For user-initiated dumps, we trigger it by issue firmware
dump event command to firmware, as there is no command
response, do not start 10s timer.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-08 19:36:56 +02:00
Xinming Hu
f5ecd02a8b mwifiex: device dump support for usb interface
Firmware dump on usb interface is different with current
sdio/pcie chipset, which is based on register operation.

When firmware hang on usb interface, context dump will be
upload to host using 0x73 firmware debug event.

This patch store dump data from debug event and send to
userspace using device coredump API.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-08 19:36:55 +02:00
Ganapathi Bhat
c6c65a8411 mwifiex: do not transmit in 11N rates when connected in TKIP security
Driver is transmitting in 11N rates, when connected to an AP in
TKIP security mode. Add a check to disable_11n to fix the issue.

Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-10-30 12:49:21 +02:00
Karthik Ananthapadmanabha
073a435d55 mwifiex: Random MAC address during scanning
Driver will advertise RANDOM_MAC support only if the device
supports this feature.

Signed-off-by: Karthik Ananthapadmanabha <karthida@marvell.com>
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-10-10 11:21:06 +03:00
Ganapathi Bhat
8a063a2781 mwifiex: do not update MCS set from hostapd
We should not copy the MCS set from hostapd RX-STBC. We
have to just use the MCS set supported by the hardware.
This fixes an issue, where mwifiex is advertising wrong
MCS sets in beacons.

Fixes: 474a41e94d ("mwifiex: update MCS set as per RX-STBC bit from hostapd")
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-30 09:54:59 +03:00
Xinming Hu
c59942938c mwifiex: usb: transmit aggregation packets
Instead of using 4KB packet buffer for data transfer, new chipset have
more device memory. This patch try to aggregation packets in an 16KB
buffer. In this way, totally usb transaction cost will be reduced.

Thoughput test on usb 2.0 show both TCP TX and UPD TX promote ~40M,
from ~240M to ~280M.

This feature is default disabled, and can be enabled by module
parameter, like:
insmod mwifiex.ko aggr_ctrl=1

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-05-31 16:54:08 +03:00
Xinming Hu
efde6648a6 mwifiex: pcie: extract wifi part from combo firmware during function level reset
A separate wifi-only firmware was download during pcie function level
reset. It is in fact the tail part of wifi/bt combo firmware. Per
Brian's and Dmitry's suggestion, this patch extract the wifi part from
combo firmware.

After that, the mrvl/pcie8997_wlan_v4.bin image in linux-firmware repo
is redundant (though I guess we keep it around to support older
kernels).

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:20:59 +03:00
Karthik Ananthapadmanabha
5c0b879874 mwifiex: add qualifier to firmware structures
Adding qualifier "__packed" indicates that no padding should be
performed on the qualified object for alignment.
This patch adds qualifier __packed to the required firmware
structures in mwifiex driver.

Signed-off-by: Karthik Ananthapadmanabha <karthida@marvell.com>
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-20 19:05:20 +02:00
Brian Norris
0ed917d09d mwifiex: don't complain about 'unknown event id: 0x63'
Marvell folks tell me this is a debugging event that the driver doesn't
need to handle, but on 8997 w/ firmware 16.68.1.p97, I see several of
these sorts of messages at (for instance) boot time:

[   13.825848] mwifiex_pcie 0000:01:00.0: event: unknown event id: 0x63
[   14.838561] mwifiex_pcie 0000:01:00.0: event: unknown event id: 0x63
[   14.850397] mwifiex_pcie 0000:01:00.0: event: unknown event id: 0x63
[   32.529923] mwifiex_pcie 0000:01:00.0: event: unknown event id: 0x63

Let's handle this "event" with a much lower verbosity.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-01-20 11:47:23 +02:00
Amitkumar Karwar
d7864cf212 mwifiex: Enable dynamic bandwidth signalling
Enable dynamic bandwidth signalling by setting the corresponding
bit in MAC control register.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-12-30 13:25:58 +02:00
Amitkumar Karwar
b82dd3bdf1 mwifiex: change width of MAC control variable
Firmware has started making use of reserved field.
Accordingly change curr_pkt_filter from u16 to u32.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-12-30 13:25:58 +02:00
Karthik D A
e267e71e68 mwifiex: Disable adhoc feature based on firmware capability
We will read fw_cap_info filled by firmware to check whether to
skip ADHOC related commands or not. Also, IBSS_COALESCING_STATUS
command has been moved from init path to adhoc network creation
path.

Signed-off-by: Karthik D A <karthida@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-25 11:52:17 +02:00
Shengzhen Li
6a7b1910c3 mwifiex: add power save parameters in hs_cfg cmd
This patch adds power save parameters(hs_wake_interval and
hs_inactivity_timeout) in host sleep cfg cmd.

Signed-off-by: Shengzhen Li <szli@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-18 13:10:44 +02:00
Ganapathi Bhat
89951db2be mwifiex: cfg80211 set_default_mgmt_key handler
Previously device used to start using IGTK key as Tx key as soon as it
gets downloaded in add_key(). This patch implements set_default_mgmt_key
handler. We will update Tx key ID in set_default_mgmt_key().

Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 18:19:42 +03:00
Amitkumar Karwar
7253979910 mwifiex: add custom regulatory domain support
This patch creates custom regulatory rules based on the information
received from firmware and enable them during wiphy registration.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-03 13:05:46 +03:00
Amitkumar Karwar
41960b4dfd mwifiex: add CHAN_REGION_CFG command
This patch adds command preparation and response handling for
CHAN_REGION_CFG command. These changes are prerequisites for adding
custom regulatory domain support.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-03 13:05:45 +03:00
Xinming Hu
432da7d243 mwifiex: add HT aggregation support for adhoc mode
This patch adds HT support for adhoc station. Firmware will upload
ibss sta connect event with beacon data, whenever new station joins
the adhoc network. Driver will check the HT IE and decide whether to
support HT aggreagation or not.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-03 12:57:17 +03:00
Xinming Hu
99ffe72cda mwifiex: process rxba_sync event
Firmware may filter and drop packets under certain condition, for
example, ARP SA=DA packet. this event will be used to synchronize
the Rx Block Acknowledgment (BA) window bitmap and to fill any holes
in driver side.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-03 12:57:16 +03:00
Ganapathi Bhat
c2a8f0ff9c mwifiex: support random MAC address for scanning
This patch advertises RANDOM_MAC_ADDR feature to cfg80211. It allow the
application to issue scan with a MAC address and mask. Random MACs are
generated and used in probe requests sent for scanning until it is changed
by the application or device is restarted.

Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-03 12:57:15 +03:00
Karthik D A
902831a762 mwifiex: Fixed endianness problem for big endian platform
The driver sends and recives information to and from the firmware.
Correct endianness should be ensured as firmware follows little
endian format and host can be little/big endian.

Signed-off-by: Karthik D A <karthida@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-03 12:57:14 +03:00
Prasun Maiti
c18b104dd2 mwifiex: Fix endianness for event TLV type TLV_BTCOEX_WL_SCANTIME
The two members min_scan_time and max_scan_time of structure
"mwifiex_ie_types_btcoex_scan_time" are of two bytes each. The values
are assigned directtly from firmware without endian conversion handling.
So, wrong datas will get saved in big-endian systems.

This patch converts the values into cpu's byte order before assigning them
into the local members.

Signed-off-by: Prasun Maiti <prasunmaiti87@gmail.com>
Acked-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:46:43 +03:00
Shengzhen Li
3ee7128579 mwifiex: add get_antenna support for cfg80211
Since commit de3bb771f4 ("cfg80211: add more warnings for inconsistent
ops") the wireless core warns if a driver implements a cfg80211 callback
but doesn't implements the inverse operation.

The mwifiex driver defines a .set_antenna handler but not a .get_antenna
so this not only makes the core to print a warning when creating a new
wiphy but also the antenna isn't reported to user-space apps such as iw.

This patch queries the antenna to the firmware so is properly reported to
user-space. With this patch, the wireless core does not warn anymore and:

$ iw phy phy0 info | grep Antennas
        Available Antennas: TX 0x3 RX 0x3
        Configured Antennas: TX 0x3 RX 0x3

Signed-off-by: Shengzhen Li <szli@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
[javier: expand the commit message]
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-05 16:29:24 +03:00
Ganapathi Bhat
8fa0a0dc63 mwifiex: add support for wakeup on GTK rekey failure
User can configure wakeup on GTK rekey fail with wowlan.
Added corresponding wakeup reason.

Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-07 19:42:18 +03:00