Re: [PATCH 2/6] ath11k: Add WoW net-detect functionality

From: Kalle Valo <kvalo@kernel.org>
To: Carl Huang <cjhuang@codeaurora.org>
Cc: ath11k@lists.infradead.org,  linux-wireless@vger.kernel.org
Subject: Re: [PATCH 2/6] ath11k: Add WoW net-detect functionality
Date: Thu, 09 Dec 2021 16:57:46 +0200	[thread overview]
Message-ID: <878rwt25cl.fsf@codeaurora.org> (raw)
In-Reply-To: <20211011193750.4891-3-cjhuang@codeaurora.org> (Carl Huang's message of "Mon, 11 Oct 2021 15:37:46 -0400")

Carl Huang <cjhuang@codeaurora.org> writes:

> Implement net-detect feature by setting flag
> WIPHY_WOWLAN_NET_DETECT if firmware supports this
> feature. Driver sets the related PNO configuration
> to firmware before entering WoW and firmware then
> scans periodically and wakes up host if a specific
> SSID is found.
>
> Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
>
> Signed-off-by: Carl Huang <cjhuang@codeaurora.org>

[...]

> --- a/drivers/net/wireless/ath/ath11k/wmi.h
> +++ b/drivers/net/wireless/ath/ath11k/wmi.h
> @@ -5626,6 +5626,173 @@ struct wmi_wow_del_pattern_cmd {
>  	u32 pattern_type;
>  } __packed;
>  
> +#define WMI_PNO_MAX_SCHED_SCAN_PLANS      2
> +#define WMI_PNO_MAX_SCHED_SCAN_PLAN_INT   7200
> +#define WMI_PNO_MAX_SCHED_SCAN_PLAN_ITRNS 100
> +#define WMI_PNO_MAX_NETW_CHANNELS         26
> +#define WMI_PNO_MAX_NETW_CHANNELS_EX      60
> +#define WMI_PNO_MAX_SUPP_NETWORKS         WLAN_SCAN_PARAMS_MAX_SSID
> +#define WMI_PNO_MAX_IE_LENGTH             WLAN_SCAN_PARAMS_MAX_IE_LEN
> +
> +/*size based of dot11 declaration without extra IEs as we will not carry those for PNO*/

The comment style is:

/* foo bar */

That is add space after and before asterisk.

> +
> +		memcpy(pno->a_networks[i].ssid.ssid,
> +		       nd_config->match_sets[i].ssid.ssid,
> +		       nd_config->match_sets[i].ssid.ssid_len);
> +		pno->a_networks[i].authentication = 0;
> +		pno->a_networks[i].encryption     = 0;
> +		pno->a_networks[i].bcast_nw_type  = 0;
> +
> +		/*Copying list of valid channel into request */

Same here.

> @@ -433,8 +592,14 @@ int ath11k_wow_op_resume(struct ieee80211_hw *hw)
>  	ath11k_hif_irq_enable(ar->ab);
>  
>  	ret = ath11k_wow_wakeup(ar->ab);
> -	if (ret)
> +	if (ret) {
>  		ath11k_warn(ar->ab, "failed to wakeup from wow: %d\n", ret);
> +		goto exit;
> +	}
> +
> +	ret = ath11k_wow_nlo_cleanup(ar);
> +	if (ret)
> +		ath11k_warn(ar->ab, "failed to cleanup nlo: %d\n", ret);
>  
>  exit:
>  	if (ret) {

For consistency please add goto exit also for ath11k_wow_nlo_cleanup().

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