- Nov 22, 2023
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Ping-Ke Shih authored
MAC address, hardware type, calibration values and etc are stored in efuse, so we read them at probe stage and use them as capabilities to register hardware. There are two physical efuse -- one is the main efuse for digital hardware part, and the other is for analog part. Because they are very similar, we only describe the main efuse below. The main efuse is split into two regions -- one is for logic map, and the other is for physical map. For both regions, we use the same method to read data, but need additional parser to get logic map. To allow reading operation, we need to convert power state to active, and turn to idle state after reading. For WiFi 7 chips, we introduce efuse blocks to define feature group easier, and these blocks are discontinue. For example, RF block is from 0x1_0000 ~ 0x1_0240, and the next block PCIE_SDIO is starting from 0x2_0000. Comparing to old one used by WiFi 6 chips, there is only single one logic map, it would be a little hard to add an new field to a group if we don't reserve a room in advance. The relationship between efuse, region and block is shown as below: (logical map) +------------+ +---------------+ +-----------------+ | main efuse | | region 1 | | block 0x1_0000~ | | (digital) | |(to logcal map)| +-----------------+ | | | | => +-----------------+ | | => | | | block 0x2_0000~ | | | | | +-----------------+ | | |---------------| : | | | region 2 | +------------+ +---------------+ +------------+ +-----------------+ | 2nd efuse | ======================> | block 0x7_0000~ | | (analog) | +-----------------+ +------------+ The parser converting from raw data to logic map is to decode block page, block page offset, and word_en bits. Each word_en bit indicates two following bytes as data of logic map, so total four word_en bits can represent eight bytes. Thus, block page offset is 8-byte alignment. The layout of a tuple is shown as below +--------+--------+--------+--------+--------+--------+ | fixed 3 byte header | | | | | | | | | | [19:17] block_page | | | ... | | [16:4] block_page_offset| | | | | [3:0] word_en | ^ | ^ | | +----|---+--------+--------+---|----+----|---+--------+ | | | +-------------------------+---------+ a word_en bit indicates two bytes as data For example, block_page = 0x3 block_page_offset = 0x80 (must 8-byte alignment) word_en = 0x6 (b'0110; 0 means data is presented) following 4 bytes = 34 56 78 90 Then, 0x3_0080 = 34 56 0x3_0086 = 78 90 A special block page is RTW89_EFUSE_BLOCK_ADIE (7) that uses different but similar format, because its real efuse size is smaller than main efuse. Signed-off-by:Ping-Ke Shih <pkshih@realtek.com> Signed-off-by:
Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20231117024029.113845-4-pkshih@realtek.com
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Ping-Ke Shih authored
Use function pointers to abstract efuse access, and introduce an new function to convert efuse power state that is needed by WiFi 7 chips. Signed-off-by:
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Ping-Ke Shih authored
8922A is a 802.11be chip that can support 2/5/6 GHz bands 160MHz bandwidth. Introduce the basic info such as firmware file name, some hardware address and size, supported spatial stream, TX descriptor and so on, and then we can add more attributes by later patches. Signed-off-by:
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Bjorn Helgaas authored
Remove the unused "const_amdpci_aspm" member of struct rtl_pci and struct rtl_ps_ctl. Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Acked-by:
Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by:
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Su Hui authored
Clang static analyzer complains that value stored to 'priv' is never read. 'priv' is useless, so remove it to save space. Signed-off-by:
Su Hui <suhui@nfschina.com> Acked-by:
Brian Norris <briannorris@chromium.org> Signed-off-by:
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Zong-Zhe Yang authored
Sync Realtek Regulatory R44 and Realtek Channel Plan R65. Configure 6 GHz field of Realtek regd on SG, TW, GD. Signed-off-by:
Zong-Zhe Yang <kevin_yang@realtek.com> Signed-off-by:
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Zong-Zhe Yang authored
According to BIOS configuration of Realtek ACPI DSM function 4, RTW89_ACPI_DSM_FUNC_6G_BP, we handle the regd policy of 6 GHz. Policy defines two modes as below. 1. `BLOCK` mode: The countries in configured list are blocked. 2. `ALLOW` mode: _Only_ the countries in configured list are allowed. (i.e. others are all blocked.) Then, when receiving regulatory notification at runtime, if 6 GHz is blocked on the country, 6 GHz channels will be disabled. Signed-off-by: -
Zong-Zhe Yang authored
Realtek ACPI DSM func 4, RTW89_ACPI_DSM_FUNC_6G_BP, accepts a configuration via ACPI buffer as below. | index | description | ------------------------- | [0-2] | signature | | [3] | reserved | | [4] | policy mode | | [5] | country count | | [6-] | country list | Through this function, BIOS can indicate to allow/block 6 GHz on some specific countries. Still, driver should follow regd first before taking this configuration into account. Besides, add a bit in debug mask for ACPI. Signed-off-by:
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Dmitry Antipov authored
Since 'drv_priv' is an in-place member allocated at the end of 'struct ieee80211_sta', it can't be NULL and so relevant checks in 'rtl_action_proc()' and 'rtl_tx_agg_start()' may be dropped. Compile tested only. Found by Linux Verification Center (linuxtesting.org) with SVACE. Signed-off-by:
Dmitry Antipov <dmantipov@yandex.ru> Acked-by:
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- Nov 14, 2023
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Ping-Ke Shih authored
To reduce interrupts, configure the mitigation setting of 8922AE when bringing interface up, and then check situations to decide turning on or off the function. With this, interrupt count decreases to 20,141 from 202,141 in period of 20 seconds. Signed-off-by:
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Ping-Ke Shih authored
To reduce interrupt count, configure mitigation register with thresholds of time and packet count. We missed that 8852CE uses different register address, so correct it. Then, interrupt counts down to 30,763 from 229,825 during stress test in 20 seconds. Signed-off-by:
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Ping-Ke Shih authored
The handlers include three parts -- 1) configure interrupt mask; 2) enable/disable interrupt; 3) recognize (read) interrupt status. Signed-off-by:
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Ping-Ke Shih authored
For WiFi 7, interrupt status registers and their definitions are changed a lot, but the logic is still the same, so define fields to reuse the code. Signed-off-by:
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Ping-Ke Shih authored
At probe stage, we only do partial initialization to enable ability to download firmware and read capabilities. After that, we use this pre_deinit to disable HCI to save power. Signed-off-by:
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Zong-Zhe Yang authored
Level 1 recovery is to recover TX/RX rings, so it needs PCI to stop/start DMA. But, different chip gen have different implementations, either register address/mask or function flow. So, configure callback of stop/start DMA by chip gen. Signed-off-by:
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Zong-Zhe Yang authored
Configure callback of reset BDRAM (buffer descriptor RAM) by chip gen. Refine the one of 802.11ax chip gen and drop a redundant duplicate of it in 802.11ax chip gen. Then, assign right callback of rst_bdram for HCI ops which needs to do callback according to chip gen. Signed-off-by:
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Jiapeng Chong authored
Variable len is not effectively used, so delete it. drivers/net/wireless/intel/iwlegacy/4965-mac.c:4234:7: warning: variable 'len' set but not used. Reported-by:
Abaci Robot <abaci@linux.alibaba.com> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7223 Signed-off-by:
Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Acked-by:
Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by:
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Shiji Yang authored
Refer to Mediatek vendor driver RxDCOC_Calibration() function, when performing gainfreeze calibration, we should write register 140 instead of 141. This fix can reduce the total calibration time from 6 seconds to 1 second. Signed-off-by:
Shiji Yang <yangshiji66@outlook.com> Acked-by:
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Arnd Bergmann authored
Libertas no longer references the iw_handler infrastructure or wext_spy, so neither of the 'select' statements are used any more. Fixes: e86dc1ca ("Libertas: cfg80211 support") Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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- Nov 09, 2023
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Shiji Yang authored
When a hardware reset is triggered, all registers are reset, so all queues are forced to stop in hardware interface. However, mac80211 will not automatically stop the queue. If we don't manually stop the beacon queue, the queue will be deadlocked and unable to start again. This patch fixes the issue where Apple devices cannot connect to the AP after calling ieee80211_restart_hw(). Signed-off-by:
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Shiji Yang authored
rt2800 has a lot of registers to control the RTS enable/disable status for different rates. And the driver control them via rt2800_set_rts_threshold(). When RTS was disabled in user interface, this function won't be called at all. This means that the RTS is still 'on' for CCK and OFDM rates. So we'd better to disable them by default because it should be like this. The RTS for HT20 and HT40 is already default off so we don't need to touch them. If we toggle the RTS status, these register bits will be enable/disable again by rt2800_set_rts_threshold(). Signed-off-by:
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Shiji Yang authored
When I tried to fix the watchdog of rt2800, I found that sometimes the watchdog can not reset the hung device. This is because the queue is not completely stuck, it just becomes very slow. The MTK vendor driver for the new chip MT7603/MT7612 has a DMA busy watchdog to detect device hangs by checking DMA busy status. This watchdog implementation is something similar to it. To reduce unnecessary reset, we can check the INT_SOURCE_CSR register together as I found that when the radio hung, the RX/TX coherent interrupt will always stuck at triggered state. The 'watchdog' module parameter has been extended to control all watchdogs(0=disabled, 1=hang watchdog, 2=DMA watchdog, 3=both). This new watchdog function is a slight schedule and it won't affect the transmission speed. So we can turn on it by default. Due to the INT_SOURCE_CSR register is invalid on rt2800 USB NICs, the DMA busy watchdog will be automatically disabled for them. Tested on MT7620 and RT5350. Signed-off-by:
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Chih-Kang Chang authored
The broadcast packets will be filtered in the FIF_ALLMULTI flag in the original code, which causes beacon packets to be filtered out and disconnection. Therefore, we fix it. Fixes: e3037485 ("rtw88: new Realtek 802.11ac driver") Signed-off-by:
Chih-Kang Chang <gary.chang@realtek.com> Signed-off-by:
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Dmitry Antipov authored
Since 'ieee80211_txq_get_depth()' allows NULL for 2nd and 3rd arguments, simplify '__rtw_tx_work()' by dropping unused 'byte_cnt'. Compile tested only. Signed-off-by:
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Ping-Ke Shih authored
To notify firmware TDMA timeslot assignment, append TDMA parameters when sending policy H2C firmware command. However, compiler warns we do memcpy() data to val[] field of TLV struct. To avoid this, assign the struct value with simple '=' instead. Compile tested only. rtw89/coex.c: In function '_append_tdma': drivers/net/wireless/realtek/rtw89/coex.c:1585:17: warning: writing 8 bytes into a region of size 0 [-Wstringop-overflow=] 1585 | memcpy(&v3->tdma, &dm->tdma, sizeof(v3->tdma)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/net/wireless/realtek/rtw89/coex.h:8, from drivers/net/wireless/realtek/rtw89/coex.c:5: drivers/net/wireless/realtek/rtw89/core.h:2703:37: note: at offset [5714, 71249] into destination object 'ver' of size 8 2703 | const struct rtw89_btc_ver *ver; | ^~~ drivers/net/wireless/realtek/rtw89/coex.c:1579:17: warning: writing 8 bytes into a region of size 0 [-Wstringop-overflow=] 1579 | memcpy(v, &dm->tdma, sizeof(*v)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/realtek/rtw89/core.h:2703:37: note: at offset [5710, 71245] into destination object 'ver' of size 8 2703 | const struct rtw89_btc_ver *ver; | ^~~ Reported-by:kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202310301908.Wrj0diqe-lkp@intel.com/ Signed-off-by:
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Ping-Ke Shih authored
For normal use, we do additional settings than mac_pre_init, such as more TX/RX DMA channels, interrupt mitigation and etc. Signed-off-by:
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Ping-Ke Shih authored
PCI LTR (Latency Tolerance Reporting) is a capability to yield expected power consumption, and we configure the parameters according to design. Signed-off-by:
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Ping-Ke Shih authored
Call this function when doing MAC initialization at probe stage. It does partial initial registers only, because we only need basic ability to download firmware. The function to clear index is the sub-function, so set its pointer as well. Signed-off-by:
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Ping-Ke Shih authored
Use gen_def pointer to call three WiFi 6 specific functions, and add _ax suffix to them. Then, we will implement functions for WiFi 7 chips later. The mac_{pre,post}_init are used to initialize PCI during doing MAC initialization, and clear PCI ring index to make index consistent between driver, firmware and hardware. Signed-off-by: -
Ping-Ke Shih authored
In order to reuse PCI initial and configuration flows, add struct rtw89_pci_gen_def to abstract the differences between WiFi 6/7 generations. Signed-off-by:
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Dmitry Antipov authored
Simplify 'wilc_scan()' assuming 'struct wilc_priv *' is the only data passed to '(*scan_result)()' callback and thus avoid typeless 'void *' pointers in related code, including 'struct wilc_user_scan_req'. Compile tested only. Signed-off-by:
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Dmitry Antipov authored
Remove set but otherwise unused 'ch' member of 'struct wilc_conn_info' and avoid typeless 'void *' pointers in '(*conn_result)()' callback. Likewise for 'wilc_parse_join_bss_param()'. Compile tested only. Signed-off-by:
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Dan Carpenter authored
Check for if the usb_alloc_urb() failed. Fixes: 68d57a07 ("wireless: add plfxlc driver for pureLiFi X, XL, XC devices") Signed-off-by:
Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by:
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- Oct 31, 2023
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Arnd Bergmann authored
Wireless RNDIS USB is a new-style CFG80211 driver for 802.11b and 802.11g USB hardware from around 2004 to 2006. This makes it more modern than any of the others, but Kalle already classified it as "legacy" in commit 298e50ad ("wifi: move raycs, wl3501 and rndis_wlan to legacy directory"). Jussi Kivilinna worked on this driver between 2008 and 2012, and it has only seen cosmetic updates after that. Signed-off-by:
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Arnd Bergmann authored
Planet WL3501 is another PCMCIA driver for pre-802.11b interfaces (2Mbit/s) with incomplete CFG80211 support. This was marked as orphaned in 2017 but has been unmaintained for a long time before that. Signed-off-by:
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Arnd Bergmann authored
Aviator/Raytheon is an early PCMCIA driver, apparently predating 802.11b and only supporting wireless extensions. The driver has been orphaned since 2010 and only seen cosmetic updates long before than. Jean Tourrilhes pointed out in a 2005 changelog that he tested a change on actual hardware, which was apparently already noteworthy back then. Signed-off-by:
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Arnd Bergmann authored
Orinoco is a PIO-only ISA/PCMCIA 802.11b device with extra bus interface connections for PCI/Cardbus/mini-PCI and a few pre-2002 Apple PowerMac variants. It supports both wireless extensions and CFG80211, but I could not tell if it requires using both. This device used to be one of the most common ones 20 years ago, but has been orphaned for most of the time since then, and the conversion to cfg80211 has stalled in 2010. Signed-off-by:
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Arnd Bergmann authored
This is a wireless extensions style driver for 802.11b USB dongles, with partial support for cfg80211 interfaces. As these are all external dongles, there are probably few users that have not yet replaced them with cheap 802.11n devices that work better. Signed-off-by:
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Arnd Bergmann authored
HostAP is an ISA/PCMCIA style 802.11b driver supporting only wireless extensions, and some custom ioctls (already removed). Some devices include a legacy PCI bridge but no DMA. The driver was marked obsolete in 2016 and is highly unlikely to still have any users. Signed-off-by:
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Arnd Bergmann authored
Cisco Aironet is an 802.11b PCMCIA and mini-PCI with limited support for Cardbus DMA and for CFG80211. Both PCMCIA and WEXT are deprecated, and there is little chance that anyone is still using this driver, so remove it. Signed-off-by:
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