In order for the firmware to process extended V1 parameters with the
addtional VHT fields added we need to first enable the feature bit DOT11AC.
Once done the version number in the HAL message header will be acted upon
by the firmware.

Extended V1 parameters are a prerequisite for 802.11ac speeds since we
cannot communicate VHT parameters to the firmware absent the extended data
structures.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200829033846.2167619-11-bryan.odonoghue@linaro.org

Two pointers are already defined in this function "bss" and "sta" which
point to fields within msg_body->bss_params.

We can substantially reduce the amount of extraneous text in this function
by making use of those pointers. This change makes the code easier to read
and modify.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200829033846.2167619-10-bryan.odonoghue@linaro.org

This commit adds the supported rates V1 structure as defined in Prima
riva/inc/wlan_hal_msg.h
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200829033846.2167619-9-bryan.odonoghue@linaro.org

This patch enumerates four previously unused bits in
wcn36xx_hal_config_sta_params_v1 describing

- HT LDPC enable
- VHT LDPC enable
- VHT TX BF enable
- VHT MU Beamformee enable
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200829033846.2167619-8-bryan.odonoghue@linaro.org

Specify the number of spatial streams in ieee80211_rx_status. For non VHT
data-rates the wireless core doesn't care about this field, however for VHT
data-rates it does.

Every version of wcn36xx has one spatial stream, so specify nss for
wcn3620, wcn3660 and wcn3680 now.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200829033846.2167619-7-bryan.odonoghue@linaro.org

The rate_idx is the index of the bitrate in the supported rate table.
However the 5Ghz band has a smaller legacy bitrate table than 2.4Ghz
since it does not have the DSSS bitrates (1, 2, 5.5, 11).

So in 5Ghz band the index should adjusted accrodingly (-4).
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
[bod: Made sure fix is only applied if the rate_idx > n_bitrates]
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200829033846.2167619-6-bryan.odonoghue@linaro.org

This commit incorporates the 802.11ac table defined in downstream into
upstream wcn36xx.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200829033846.2167619-5-bryan.odonoghue@linaro.org

If DT indicates we are dealing with a WCN3680 mark the rf_id field as
RF_IRIS_WCN3680 allowing for further chip-specific logic.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200829033846.2167619-3-bryan.odonoghue@linaro.org

The WCN3680 has some specific behaviours that we want to capture to
distinguish it from the WCN3620 and WCN3660 respectively.

Add an identifier for this purpose.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200829033846.2167619-2-bryan.odonoghue@linaro.org

As of the patch ("ath10k: Keep track of which interrupts fired, don't
poll them") we now have no users of this hardware parameter.  Remove
it.
Suggested-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200709082024.v2.2.I083faa4e62e69f863311c89ae5eb28ec5a229b70@changeid

If we have a per CE (Copy Engine) IRQ then we have no summary
register.  Right now the code generates a summary register by
iterating over all copy engines and seeing if they have an interrupt
pending.

This has a problem.  Specifically if _none_ if the Copy Engines have
an interrupt pending then they might go into low power mode and
reading from their address space will cause a full system crash.  This
was seen to happen when two interrupts went off at nearly the same
time.  Both were handled by a single call of ath10k_snoc_napi_poll()
but, because there were two interrupts handled and thus two calls to
napi_schedule() there was still a second call to
ath10k_snoc_napi_poll() which ran with no interrupts pending.

Instead of iterating over all the copy engines, let's just keep track
of the IRQs that fire.  Then we can effectively generate our own
summary without ever needing to read the Copy Engines.

Tested-on: WCN3990 SNOC WLAN.HL.3.2.2-00490-QCAHLSWMTPL-1
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Rakesh Pillai <pillair@codeaurora.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200709082024.v2.1.I4d2f85ffa06f38532631e864a3125691ef5ffe06@changeid

Currently the NAPI processing loops through all
the copy engines and processes a particular copy
engine is the copy completion is set for that copy
engine. The host driver is not supposed to access
any copy engine register after clearing the interrupt
status register.

This might result in kernel crash like the one below
[ 1159.220143] Call trace:
[ 1159.220170]  ath10k_snoc_read32+0x20/0x40 [ath10k_snoc]
[ 1159.220193]  ath10k_ce_per_engine_service_any+0x78/0x130 [ath10k_core]
[ 1159.220203]  ath10k_snoc_napi_poll+0x38/0x8c [ath10k_snoc]
[ 1159.220270]  net_rx_action+0x100/0x3b0
[ 1159.220312]  __do_softirq+0x164/0x30c
[ 1159.220345]  run_ksoftirqd+0x2c/0x64
[ 1159.220380]  smpboot_thread_fn+0x1b0/0x288
[ 1159.220405]  kthread+0x11c/0x12c
[ 1159.220423]  ret_from_fork+0x10/0x18

To avoid such a scenario, we generate an interrupt
summary by reading the copy completion for all the
copy engine before actually processing any of them.
This will avoid reading the interrupt status register
for any CE after the interrupt status is cleared.

Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.1-01040-QCAHLSWMTPLZ-1
Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1593193967-29897-1-git-send-email-pillair@codeaurora.org

Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes. Also, remove unnecessary
variable _len_.

This code was detected with the help of Coccinelle and, audited and
fixed manually.
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200616225132.GA19873@embeddedor

'ar9170_qmap' is used in some source files which include carl9170.h,
but not all of them.  A 'defined but not used' warning is thrown when
compiling the ones which do not use it.

Fixes the following W=1 kernel build warning(s)

 from drivers/net/wireless/ath/carl9170/carl9170.h:57,
 In file included from drivers/net/wireless/ath/carl9170/carl9170.h:57,
 drivers/net/wireless/ath/carl9170/carl9170.h:71:17: warning: ‘ar9170_qmap’ defined but not used [-Wunused-const-variable=]

 NB: Snipped - lots of these repeat

Cc: Christian Lamparter <chunkeey@googlemail.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Suggested-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200827093351.GA1627017@dell

There has been no attempt to document any of the function parameters here.

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/ath/wil6210/wil_platform.c:27: warning: Function parameter or member 'dev' not described in 'wil_platform_init'
 drivers/net/wireless/ath/wil6210/wil_platform.c:27: warning: Function parameter or member 'ops' not described in 'wil_platform_init'
 drivers/net/wireless/ath/wil6210/wil_platform.c:27: warning: Function parameter or member 'rops' not described in 'wil_platform_init'
 drivers/net/wireless/ath/wil6210/wil_platform.c:27: warning: Function parameter or member 'wil_handle' not described in 'wil_platform_init'

Cc: Maya Erez <merez@codeaurora.org>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: wil6210@qti.qualcomm.com
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200827073832.GW3248864@dell

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/ath/wil6210/pmc.c:43: warning: Function parameter or member 'wil' not described in 'wil_pmc_alloc'
 drivers/net/wireless/ath/wil6210/pmc.c:43: warning: Function parameter or member 'num_descriptors' not described in 'wil_pmc_alloc'
 drivers/net/wireless/ath/wil6210/pmc.c:43: warning: Function parameter or member 'descriptor_size' not described in 'wil_pmc_alloc'
 drivers/net/wireless/ath/wil6210/pmc.c:229: warning: Function parameter or member 'wil' not described in 'wil_pmc_free'
 drivers/net/wireless/ath/wil6210/pmc.c:229: warning: Function parameter or member 'send_pmc_cmd' not described in 'wil_pmc_free'
 drivers/net/wireless/ath/wil6210/pmc.c:307: warning: Function parameter or member 'wil' not described in 'wil_pmc_last_cmd_status'
 drivers/net/wireless/ath/wil6210/pmc.c:320: warning: Function parameter or member 'filp' not described in 'wil_pmc_read'
 drivers/net/wireless/ath/wil6210/pmc.c:320: warning: Function parameter or member 'buf' not described in 'wil_pmc_read'
 drivers/net/wireless/ath/wil6210/pmc.c:320: warning: Function parameter or member 'count' not described in 'wil_pmc_read'
 drivers/net/wireless/ath/wil6210/pmc.c:320: warning: Function parameter or member 'f_pos' not described in 'wil_pmc_read'

Cc: Maya Erez <merez@codeaurora.org>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: wil6210@qti.qualcomm.com
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200827073718.GV3248864@dell

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/ath/wil6210/txrx_edma.c:155: warning: Function parameter or member 'wil' not described in 'wil_ring_alloc_skb_edma'
 drivers/net/wireless/ath/wil6210/txrx_edma.c:155: warning: Function parameter or member 'ring' not described in 'wil_ring_alloc_skb_edma'
 drivers/net/wireless/ath/wil6210/txrx_edma.c:155: warning: Function parameter or member 'i' not described in 'wil_ring_alloc_skb_edma'
 drivers/net/wireless/ath/wil6210/txrx_edma.c:1161: warning: Function parameter or member 'wil' not described in 'wil_tx_sring_handler'
 drivers/net/wireless/ath/wil6210/txrx_edma.c:1161: warning: Function parameter or member 'sring' not described in 'wil_tx_sring_handler'
 drivers/net/wireless/ath/wil6210/txrx_edma.c:1328: warning: Function parameter or member 'd' not described in 'wil_tx_desc_offload_setup_tso_edma'
 drivers/net/wireless/ath/wil6210/txrx_edma.c:1328: warning: Function parameter or member 'tso_desc_type' not described in 'wil_tx_desc_offload_setup_tso_edma'
 drivers/net/wireless/ath/wil6210/txrx_edma.c:1328: warning: Function parameter or member 'is_ipv4' not described in 'wil_tx_desc_offload_setup_tso_edma'
 drivers/net/wireless/ath/wil6210/txrx_edma.c:1328: warning: Function parameter or member 'tcp_hdr_len' not described in 'wil_tx_desc_offload_setup_tso_edma'
 drivers/net/wireless/ath/wil6210/txrx_edma.c:1328: warning: Function parameter or member 'skb_net_hdr_len' not described in 'wil_tx_desc_offload_setup_tso_edma'
 drivers/net/wireless/ath/wil6210/txrx_edma.c:1328: warning: Function parameter or member 'mss' not described in 'wil_tx_desc_offload_setup_tso_edma'

Cc: Maya Erez <merez@codeaurora.org>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: wil6210@qti.qualcomm.com
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200827073545.GU3248864@dell

None of these headers provide any parameter documentation.

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/ath/wil6210/txrx.c:259: warning: Function parameter or member 'wil' not described in 'wil_vring_alloc_skb'
 drivers/net/wireless/ath/wil6210/txrx.c:259: warning: Function parameter or member 'vring' not described in 'wil_vring_alloc_skb'
 drivers/net/wireless/ath/wil6210/txrx.c:259: warning: Function parameter or member 'i' not described in 'wil_vring_alloc_skb'
 drivers/net/wireless/ath/wil6210/txrx.c:259: warning: Function parameter or member 'headroom' not described in 'wil_vring_alloc_skb'
 drivers/net/wireless/ath/wil6210/txrx.c:309: warning: Function parameter or member 'wil' not described in 'wil_rx_add_radiotap_header'
 drivers/net/wireless/ath/wil6210/txrx.c:309: warning: Function parameter or member 'skb' not described in 'wil_rx_add_radiotap_header'
 drivers/net/wireless/ath/wil6210/txrx.c:444: warning: Function parameter or member 'wil' not described in 'wil_vring_reap_rx'
 drivers/net/wireless/ath/wil6210/txrx.c:444: warning: Function parameter or member 'vring' not described in 'wil_vring_reap_rx'
 drivers/net/wireless/ath/wil6210/txrx.c:610: warning: Function parameter or member 'wil' not described in 'wil_rx_refill'
 drivers/net/wireless/ath/wil6210/txrx.c:610: warning: Function parameter or member 'count' not described in 'wil_rx_refill'
 drivers/net/wireless/ath/wil6210/txrx.c:1011: warning: Function parameter or member 'wil' not described in 'wil_rx_handle'
 drivers/net/wireless/ath/wil6210/txrx.c:1011: warning: Function parameter or member 'quota' not described in 'wil_rx_handle'
 drivers/net/wireless/ath/wil6210/txrx.c:1643: warning: Function parameter or member 'd' not described in 'wil_tx_desc_offload_setup_tso'
 drivers/net/wireless/ath/wil6210/txrx.c:1643: warning: Function parameter or member 'skb' not described in 'wil_tx_desc_offload_setup_tso'
 drivers/net/wireless/ath/wil6210/txrx.c:1643: warning: Function parameter or member 'tso_desc_type' not described in 'wil_tx_desc_offload_setup_tso'
 drivers/net/wireless/ath/wil6210/txrx.c:1643: warning: Function parameter or member 'is_ipv4' not described in 'wil_tx_desc_offload_setup_tso'
 drivers/net/wireless/ath/wil6210/txrx.c:1643: warning: Function parameter or member 'tcp_hdr_len' not described in 'wil_tx_desc_offload_setup_tso'
 drivers/net/wireless/ath/wil6210/txrx.c:1643: warning: Function parameter or member 'skb_net_hdr_len' not described in 'wil_tx_desc_offload_setup_tso'
 drivers/net/wireless/ath/wil6210/txrx.c:1674: warning: Function parameter or member 'd' not described in 'wil_tx_desc_offload_setup'
 drivers/net/wireless/ath/wil6210/txrx.c:1674: warning: Function parameter or member 'skb' not described in 'wil_tx_desc_offload_setup'
 drivers/net/wireless/ath/wil6210/txrx.c:2240: warning: Function parameter or member 'wil' not described in '__wil_update_net_queues'
 drivers/net/wireless/ath/wil6210/txrx.c:2240: warning: Function parameter or member 'vif' not described in '__wil_update_net_queues'
 drivers/net/wireless/ath/wil6210/txrx.c:2240: warning: Function parameter or member 'ring' not described in '__wil_update_net_queues'
 drivers/net/wireless/ath/wil6210/txrx.c:2240: warning: Function parameter or member 'check_stop' not described in '__wil_update_net_queues'
 drivers/net/wireless/ath/wil6210/txrx.c:2430: warning: Function parameter or member 'vif' not described in 'wil_tx_complete'
 drivers/net/wireless/ath/wil6210/txrx.c:2430: warning: Function parameter or member 'ringid' not described in 'wil_tx_complete'

Cc: Maya Erez <merez@codeaurora.org>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: wil6210@qti.qualcomm.com
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200827073442.GT3248864@dell

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/ath/wil6210/interrupt.c:652: warning: Function parameter or member 'irq' not described in 'wil6210_thread_irq'
 drivers/net/wireless/ath/wil6210/interrupt.c:652: warning: Function parameter or member 'cookie' not described in 'wil6210_thread_irq'

Cc: Maya Erez <merez@codeaurora.org>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: wil6210@qti.qualcomm.com
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200827073338.GS3248864@dell

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/ath/wil6210/wmi.c:52: warning: Incorrect use of kernel-doc format:  * Addressing - theory of operations
 drivers/net/wireless/ath/wil6210/wmi.c:70: warning: Incorrect use of kernel-doc format:  * @sparrow_fw_mapping provides memory remapping table for sparrow
 drivers/net/wireless/ath/wil6210/wmi.c:80: warning: cannot understand function prototype: 'const struct fw_map sparrow_fw_mapping[] = '
 drivers/net/wireless/ath/wil6210/wmi.c:107: warning: Cannot understand  * @sparrow_d0_mac_rgf_ext - mac_rgf_ext section for Sparrow D0
 drivers/net/wireless/ath/wil6210/wmi.c:115: warning: Cannot understand  * @talyn_fw_mapping provides memory remapping table for Talyn
 drivers/net/wireless/ath/wil6210/wmi.c:158: warning: Cannot understand  * @talyn_mb_fw_mapping provides memory remapping table for Talyn-MB
 drivers/net/wireless/ath/wil6210/wmi.c:236: warning: Function parameter or member 'x' not described in 'wmi_addr_remap'
 drivers/net/wireless/ath/wil6210/wmi.c:255: warning: Function parameter or member 'section' not described in 'wil_find_fw_mapping'
 drivers/net/wireless/ath/wil6210/wmi.c:278: warning: Function parameter or member 'wil' not described in 'wmi_buffer_block'
 drivers/net/wireless/ath/wil6210/wmi.c:278: warning: Function parameter or member 'ptr_' not described in 'wmi_buffer_block'
 drivers/net/wireless/ath/wil6210/wmi.c:278: warning: Function parameter or member 'size' not described in 'wmi_buffer_block'
 drivers/net/wireless/ath/wil6210/wmi.c:307: warning: Function parameter or member 'wil' not described in 'wmi_addr'
 drivers/net/wireless/ath/wil6210/wmi.c:307: warning: Function parameter or member 'ptr' not described in 'wmi_addr'
 drivers/net/wireless/ath/wil6210/wmi.c:1589: warning: Function parameter or member 'wil' not described in 'wil_find_cid_ringid_sta'
 drivers/net/wireless/ath/wil6210/wmi.c:1589: warning: Function parameter or member 'vif' not described in 'wil_find_cid_ringid_sta'
 drivers/net/wireless/ath/wil6210/wmi.c:1589: warning: Function parameter or member 'cid' not described in 'wil_find_cid_ringid_sta'
 drivers/net/wireless/ath/wil6210/wmi.c:1589: warning: Function parameter or member 'ringid' not described in 'wil_find_cid_ringid_sta'
 drivers/net/wireless/ath/wil6210/wmi.c:1876: warning: Function parameter or member 'vif' not described in 'wmi_evt_ignore'
 drivers/net/wireless/ath/wil6210/wmi.c:1876: warning: Function parameter or member 'id' not described in 'wmi_evt_ignore'
 drivers/net/wireless/ath/wil6210/wmi.c:1876: warning: Function parameter or member 'd' not described in 'wmi_evt_ignore'
 drivers/net/wireless/ath/wil6210/wmi.c:1876: warning: Function parameter or member 'len' not described in 'wmi_evt_ignore'
 drivers/net/wireless/ath/wil6210/wmi.c:2588: warning: Function parameter or member 'wil' not described in 'wmi_rxon'

Cc: Maya Erez <merez@codeaurora.org>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: wil6210@qti.qualcomm.com
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200827073201.GR3248864@dell

The return error check on the call to ath11k_pci_get_user_msi_assignment is
missing.  If an error does occur, num_vectors is still set to zero and
later on a division by zero can occur when variable vector is being
calculated.  Fix this by adding an error check after the call.

Addresses-Coverity: ("Division or modulo by zero")
Fixes: d4ecb90b ("ath11k: enable DP interrupt setup for QCA6390")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200819111452.52419-1-colin.king@canonical.com

There is a spelling mistake in an ath11k_warn warning message. Fix it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200819074729.48591-1-colin.king@canonical.com

In preparation for unconditionally passing the
struct tasklet_struct pointer to all tasklet
callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200817090637.26887-5-allen.cryptic@gmail.com

In preparation for unconditionally passing the
struct tasklet_struct pointer to all tasklet
callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.
Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Acked-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200817090637.26887-4-allen.cryptic@gmail.com

Kerneldoc expects attributes/parameters to be in '@*.: ' format and
gets confused if the variable does not follow the type/attribute
definitions.

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/ath/wil6210/debugfs.c:456: warning: Function parameter or member 'wil' not described in 'wil6210_debugfs_init_offset'
 drivers/net/wireless/ath/wil6210/debugfs.c:456: warning: Function parameter or member 'dbg' not described in 'wil6210_debugfs_init_offset'
 drivers/net/wireless/ath/wil6210/debugfs.c:456: warning: Function parameter or member 'base' not described in 'wil6210_debugfs_init_offset'
 drivers/net/wireless/ath/wil6210/debugfs.c:456: warning: Function parameter or member 'tbl' not described in 'wil6210_debugfs_init_offset'

Cc: Maya Erez <merez@codeaurora.org>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: wil6210@qti.qualcomm.com
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200819072402.3085022-22-lee.jones@linaro.org

Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1].

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-throughSigned-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Acked-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200821065204.GA24827@embeddedor

Returning PTR_ERR(NULL) means success, but we should return -ENOMEM.

Fixes: 1399fb87 ("ath11k: register MHI controller device for QCA6390")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200826113417.GE393664@mwanda

In ath11k_qmi_prepare_bdf_download(), ath11k_core_firmware_request() is
called, but the returned pointer is not checked for errors. Rather the
variable ret (which will always be zero) is checked by mistake. Fix
this and replace the various gotos with simple returns for clarity.

While we are at it, move the call to memset, as variable bd is not used
on all code paths.

Fixes: 7b57b2dd ("ath11k: create a common function to request all firmware files")
Signed-off-by: Alex Dewar <alex.dewar90@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200825143040.233619-1-alex.dewar90@gmail.com

The ath9k driver hides all LEDs related code behind CONFIG_MAC80211_LEDS
ifdefs so it does not really require the MAC80211_LEDS.  The code builds
fine.  Convert the "select" into "imply" to allow disabling LED trigger
when not needed.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200820194049.28055-1-krzk@kernel.org

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/ath/ath9k/ar5008_initvals.h:627:18: warning: ‘ar5416Bank7’ defined but not used [-Wunused-const-variable=]
 627 | static const u32 ar5416Bank7[][2] = {
 | ^~~~~~~~~~~
 drivers/net/wireless/ath/ath9k/ar5008_initvals.h:548:18: warning: ‘ar5416Bank3’ defined but not used [-Wunused-const-variable=]
 548 | static const u32 ar5416Bank3[][3] = {
 | ^~~~~~~~~~~
 drivers/net/wireless/ath/ath9k/ar5008_initvals.h:542:18: warning: ‘ar5416Bank2’ defined but not used [-Wunused-const-variable=]
 542 | static const u32 ar5416Bank2[][2] = {
 | ^~~~~~~~~~~
 drivers/net/wireless/ath/ath9k/ar5008_initvals.h:536:18: warning: ‘ar5416Bank1’ defined but not used [-Wunused-const-variable=]
 536 | static const u32 ar5416Bank1[][2] = {
 | ^~~~~~~~~~~
 drivers/net/wireless/ath/ath9k/ar5008_initvals.h:462:18: warning: ‘ar5416Bank0’ defined but not used [-Wunused-const-variable=]
 462 | static const u32 ar5416Bank0[][2] = {
 | ^~~~~~~~~~~

Cc: QCA ath9k Development <ath9k-devel@qca.qualcomm.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200826093401.1458456-27-lee.jones@linaro.org

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/ath/ath9k/ar5008_initvals.h:553:18: warning: ‘ar5416Bank6’ defined but not used [-Wunused-const-variable=]

Cc: QCA ath9k Development <ath9k-devel@qca.qualcomm.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200826093401.1458456-26-lee.jones@linaro.org

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/ath/ath9k/ar9001_initvals.h:462:18: warning: ‘ar5416Bank6_9100’ defined but not used [-Wunused-const-variable=]

Cc: QCA ath9k Development <ath9k-devel@qca.qualcomm.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200826093401.1458456-19-lee.jones@linaro.org

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/ath/ath9k/ar9002_initvals.h:900:18: warning: ‘ar9280PciePhy_clkreq_off_L1_9280’ defined but not used [-Wunused-const-variable=]

Cc: QCA ath9k Development <ath9k-devel@qca.qualcomm.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200826093401.1458456-18-lee.jones@linaro.org

The ath9k_htc driver hides all LEDs related code behind
CONFIG_MAC80211_LEDS ifdefs so it does not really require the
MAC80211_LEDS.  The code builds and works just fine.  Convert the
"select" into "imply" to allow disabling LED trigger when not needed.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200820120444.8809-1-krzk@kernel.org

In preparation for unconditionally passing the
struct tasklet_struct pointer to all tasklet
callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.
Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200817090637.26887-3-allen.cryptic@gmail.com

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/ath/ath6kl/wmi.c: In function ‘ath6kl_wmi_bitrate_reply_rx’:
 drivers/net/wireless/ath/ath6kl/wmi.c:1204:6: warning: variable ‘rate’ set but not used [-Wunused-but-set-variable]

Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200826093401.1458456-15-lee.jones@linaro.org

In preparation for unconditionally passing the
struct tasklet_struct pointer to all tasklet
callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.
Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200817090637.26887-2-allen.cryptic@gmail.com

For whatever reason, when connected to an open/no-security BSS,
the wcn36xx controller in bmps mode does not forward 'wake-up'
beacons despite AP sends DTIM with station AID.

Meaning that AP is not able to wakeup the station and needs to wait
for the station to wakeup by its own (TX data, keep alive pkt...),
causing serious latency issues and unexpected deauth.

When connected to AP with encryption enabled, this issue does not occur.
So a simple workaround is to only enable bmps support in that case.

Ideally, it should be propertly fixed to allow bmps support with open
BSS, whatever the issue is at driver or firmware level.

Tested on wcn3620 and wcn3680.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1598363127-26066-1-git-send-email-loic.poulain@linaro.org

By default, after associated to an AP, the wcn36xx bitrate adjustment
algorithm starts sending data at 1Mbps, and increases the rate slowly
(1Mbps, 2Mbps, 6Mbps...) over the further TX packets.

Starting at 1Mbps usually causes the initial throughput to be really
low and the maximum possible bitrate to be reached after about hundreed
of TX packets.

That can be improved by setting a different initial bitrate for data
packets via the ENABLE_DYNAMIC_RA_START_RATE configuration value, this
value can be a legacy or MCS rate.

This patch sets the starting bitrate value to MCS-5, which seems to be
a good compromise given it can be quickly adjusted low or up if necessary.
(and based on what I observed in the wild with some mobile devices)
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1598345341-4505-1-git-send-email-loic.poulain@linaro.org

For software-driven scan, rely on mac80211 software scan instead
of internal driver implementation. The internal implementation
cause connection trouble since it keep the antenna busy during
the entire scan duration, moreover it's only a passive scanning
(no probe request). Therefore, let mac80211 manages sw scan.

Note: we fallback to software scan if firmware does not report
scan offload support or if we need to scan the 5Ghz band (currently
not supported by the offload scan...).
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1598288035-19790-1-git-send-email-loic.poulain@linaro.org