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mac80211: ath12k: fix wideband operation on QCN9274
Add patches to enable QCN9274 radios that support both 5GHz and 6GHz bands. Signed-off-by: Mantas Pucka <mantas@8devices.com> Link: https://github.com/openwrt/openwrt/pull/18459 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
This commit is contained in:
Mantas Pucka
Christian Marangi
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@ -0,0 +1,153 @@
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From: Mantas Pucka <mantas@8devices.com>
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Date: Mon, 10 Mar 2025 15:28:18 +0200
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Subject: [PATCH ath-next] wifi: ath12k: limit WMI_SCAN_CHAN_LIST_CMDID
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argument size
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To: ath12k@lists.infradead.org
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Cc: Johannes Berg <johannes@sipsolutions.net>,
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Jeff Johnson <jjohnson@kernel.org>, linux-wireless@vger.kernel.org,
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linux-kernel@vger.kernel.org, Mantas Pucka <mantas@8devices.com>
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When using BDF with both 5GHz and 6GHz bands enabled on QCN9274, interface
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fails to start. It happens because FW fails to process
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WMI_SCAN_CHAN_LIST_CMDID with argument size >2048, resulting in a command
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timeout. The current code allows splitting channel list across multiple WMI
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commands but uses WMI max_msg_len (4096) as chunk size, which is still too
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large.
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Fix this by limiting the number of channels sent at once, using the value
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specified in WMI interface description [1].
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[1] https://git.codelinaro.org/clo/qsdk/platform/vendor/qcom-opensource/wlan/fw-api/-/blob/NHSS.QSDK.13.0.0.6/fw/wmi_unified.h#L6459
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Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1
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Signed-off-by: Mantas Pucka <mantas@8devices.com>
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---
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drivers/net/wireless/ath/ath12k/wmi.c | 3 +++
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drivers/net/wireless/ath/ath12k/wmi.h | 2 ++
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2 files changed, 5 insertions(+)
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---
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base-commit: 42aa76e608ca845c98e79f9e23af0bdb07b2eb1d
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change-id: 20250310-limit-wmi-chanlist-17cb8d27cba6
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Best regards,
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--- a/drivers/net/wireless/ath/ath12k/wmi.c
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+++ b/drivers/net/wireless/ath/ath12k/wmi.c
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@@ -2558,6 +2558,9 @@ int ath12k_wmi_send_scan_chan_list_cmd(s
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max_chan_limit = (wmi->wmi_ab->max_msg_len[ar->pdev_idx] - len) /
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sizeof(*chan_info);
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+ if (max_chan_limit > WMI_MAX_NUM_CHAN_PER_WMI_CMD)
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+ max_chan_limit = WMI_MAX_NUM_CHAN_PER_WMI_CMD;
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+
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num_send_chans = min(arg->nallchans, max_chan_limit);
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arg->nallchans -= num_send_chans;
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--- a/drivers/net/wireless/ath/ath12k/wmi.h
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+++ b/drivers/net/wireless/ath/ath12k/wmi.h
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@@ -3743,6 +3743,8 @@ struct wmi_stop_scan_cmd {
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__le32 pdev_id;
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} __packed;
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+#define WMI_MAX_NUM_CHAN_PER_WMI_CMD 58
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+
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struct ath12k_wmi_scan_chan_list_arg {
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u32 pdev_id;
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u16 nallchans;
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2adb3069b0e04-54990eb1987mr9398593e87.32.1741856486697;
|
||||
Thu, 13 Mar 2025 02:01:26 -0700 (PDT)
|
||||
Received: from [127.0.1.1] ([78.62.132.154])
|
||||
by smtp.gmail.com with ESMTPSA id
|
||||
2adb3069b0e04-549ba88591csm142134e87.187.2025.03.13.02.01.25
|
||||
(version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
|
||||
Thu, 13 Mar 2025 02:01:25 -0700 (PDT)
|
||||
From: Mantas Pucka <mantas@8devices.com>
|
||||
Date: Thu, 13 Mar 2025 11:00:56 +0200
|
||||
Subject: [PATCH] wifi: ath12k: fix 5GHz operation on wideband QCN9274
|
||||
radios
|
||||
Precedence: bulk
|
||||
X-Mailing-List: linux-wireless@vger.kernel.org
|
||||
List-Id: <linux-wireless.vger.kernel.org>
|
||||
List-Subscribe: <mailto:linux-wireless+subscribe@vger.kernel.org>
|
||||
List-Unsubscribe: <mailto:linux-wireless+unsubscribe@vger.kernel.org>
|
||||
MIME-Version: 1.0
|
||||
Message-Id: <20250313-ath12-wideband-caps-v1-1-23ac4247cd8a@8devices.com>
|
||||
X-B4-Tracking: v=1; b=H4sIAMee0mcC/x3MQQqAIBBA0avErBvIsUi6SrSwHGs2FhoVhHdPW
|
||||
r7F/y8kjsIJhuqFyJck2UOBqitYNhtWRnHFQA11jVYa7bkpwlsczzY4XOyRkNqZjOqNcZ6hlEd
|
||||
kL89/HaecP+zWjGtlAAAA
|
||||
X-Change-ID: 20250313-ath12-wideband-caps-24b281788dfe
|
||||
To: ath12k@lists.infradead.org
|
||||
Cc: Johannes Berg <johannes@sipsolutions.net>,
|
||||
Jeff Johnson <jjohnson@kernel.org>, linux-wireless@vger.kernel.org,
|
||||
linux-kernel@vger.kernel.org, Mantas Pucka <mantas@8devices.com>
|
||||
X-Mailer: b4 0.14.2
|
||||
|
||||
Currently ath12k_mac_setup_ht_vht_cap() incorrectly assumes that QCN9274
|
||||
radios with 6GHz band can't support 5GHz as well. This prevents the
|
||||
addition of HT and VHT capabilities for the 5GHz band. Since QCN9274 is
|
||||
capable of operating in multiple bands, remove the 6GHz support check and
|
||||
exception for single_pdev_only (i.e. WCN7850).
|
||||
|
||||
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1
|
||||
|
||||
Signed-off-by: Mantas Pucka <mantas@8devices.com>
|
||||
---
|
||||
drivers/net/wireless/ath/ath12k/mac.c | 4 +---
|
||||
1 file changed, 1 insertion(+), 3 deletions(-)
|
||||
|
||||
|
||||
---
|
||||
base-commit: 42aa76e608ca845c98e79f9e23af0bdb07b2eb1d
|
||||
change-id: 20250313-ath12-wideband-caps-24b281788dfe
|
||||
|
||||
Best regards,
|
||||
|
||||
--- a/drivers/net/wireless/ath/ath12k/mac.c
|
||||
+++ b/drivers/net/wireless/ath/ath12k/mac.c
|
||||
@@ -5185,9 +5185,7 @@ static void ath12k_mac_setup_ht_vht_cap(
|
||||
rate_cap_rx_chainmask);
|
||||
}
|
||||
|
||||
- if (cap->supported_bands & WMI_HOST_WLAN_5G_CAP &&
|
||||
- (ar->ab->hw_params->single_pdev_only ||
|
||||
- !ar->supports_6ghz)) {
|
||||
+ if (cap->supported_bands & WMI_HOST_WLAN_5G_CAP) {
|
||||
band = &ar->mac.sbands[NL80211_BAND_5GHZ];
|
||||
ht_cap = cap->band[NL80211_BAND_5GHZ].ht_cap_info;
|
||||
if (ht_cap_info)
|
||||
Loading…
x
Reference in New Issue
Block a user