diff options
| author | P Praneesh <quic_ppranees@quicinc.com> | 2021-11-15 11:50:52 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2021-11-17 09:28:04 +0200 |
| commit | f951380a6022440335f668f85296096ba13071ba (patch) | |
| tree | b3c0e1cfc950e9722e203bd1c09f4f6efddbba3f /drivers/net/wireless/ath/ath11k/ce.h | |
| parent | 086c921a354089f209318501038d43c98d3f409f (diff) | |
ath11k: Disabling credit flow for WMI path
Firmware credit flow control is enabled for WMI control services,
which expects available tokens should be acquired before sending a
command to the target. Also the token gets released when firmware
receives the command.
This credit-based flow limits driver to send WMI command only
when the token available which is causing WMI commands to timeout and
return -EAGAIN, whereas firmware has enough capability to process the
WMI command. To fix this Tx starvation issue, introduce the ability to
disable the credit flow for the WMI path.
The driver sends WMI configuration for disabling credit flow to firmware
by two ways.
1. By using a global flag
(HTC_MSG_SETUP_COMPLETE_EX_ID msg type flags)
2. By using a local flag
(ATH11K_HTC_CONN_FLAGS_DISABLE_CREDIT_FLOW_CTRL = 1 << 3)
Ath11k uses both these configurations to disable credit flow for the
WMI path completely.
Also added a hw_param member for credit flow control by which we can
enable or disable it based on per-target basis. Currently we are disabling
credit flow for IPQ8074, IPQ6018, and QCN9074 as recommended by firmware.
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01492-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ6018 hw1.0 AHB WLAN.HK.2.4.0.1-00330-QCAHKSWPL_SILICONZ-1
Co-developed-by: Pravas Kumar Panda <kumarpan@codeaurora.org>
Signed-off-by: Pravas Kumar Panda <kumarpan@codeaurora.org>
Signed-off-by: P Praneesh <quic_ppranees@quicinc.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1635156494-20059-1-git-send-email-quic_ppranees@quicinc.com
Diffstat (limited to 'drivers/net/wireless/ath/ath11k/ce.h')
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/ce.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath11k/ce.h b/drivers/net/wireless/ath/ath11k/ce.h index 713f766cac22..8255b6cfab0c 100644 --- a/drivers/net/wireless/ath/ath11k/ce.h +++ b/drivers/net/wireless/ath/ath11k/ce.h @@ -101,6 +101,7 @@ struct ce_attr { unsigned int dest_nentries; void (*recv_cb)(struct ath11k_base *, struct sk_buff *); + void (*send_cb)(struct ath11k_base *, struct sk_buff *); }; #define CE_DESC_RING_ALIGN 8 @@ -154,7 +155,7 @@ struct ath11k_ce_pipe { unsigned int buf_sz; unsigned int rx_buf_needed; - void (*send_cb)(struct ath11k_ce_pipe *); + void (*send_cb)(struct ath11k_base *, struct sk_buff *); void (*recv_cb)(struct ath11k_base *, struct sk_buff *); struct tasklet_struct intr_tq; |