2021-11-30 09:37:41 +00:00
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From f2a7064a78b22f2b68b9fcbc8a6f4c5e61c5ba64 Mon Sep 17 00:00:00 2001
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From: Robert Marko <robimarko@gmail.com>
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Date: Sun, 10 Oct 2021 00:17:11 +0200
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Subject: [PATCH] ath10k: support bus and device specific API 1 BDF selection
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Some ath10k IPQ40xx devices like the MikroTik hAP ac2 and ac3 require the
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BDF-s to be extracted from the device storage instead of shipping packaged
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API 2 BDF-s.
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This is required as MikroTik has started shipping boards that require BDF-s
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to be updated, as otherwise their WLAN performance really suffers.
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This is however impossible as the devices that require this are release
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under the same revision and its not possible to differentiate them from
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devices using the older BDF-s.
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In OpenWrt we are extracting the calibration data during runtime and we are
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able to extract the BDF-s in the same manner, however we cannot package the
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BDF-s to API 2 format on the fly and can only use API 1 to provide BDF-s on
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the fly.
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This is an issue as the ath10k driver explicitly looks only for the
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board.bin file and not for something like board-bus-device.bin like it does
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for pre-cal data.
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Due to this we have no way of providing correct BDF-s on the fly, so lets
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extend the ath10k driver to first look for BDF-s in the
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board-bus-device.bin format, for example: board-ahb-a800000.wifi.bin
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If that fails, look for the default board file name as defined previously.
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Signed-off-by: Robert Marko <robimarko@gmail.com>
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Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
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Link: https://lore.kernel.org/r/20211009221711.2315352-1-robimarko@gmail.com
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---
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drivers/net/wireless/ath/ath10k/core.c | 13 ++++++++++++-
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1 file changed, 12 insertions(+), 1 deletion(-)
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--- a/drivers/net/wireless/ath/ath10k/core.c
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+++ b/drivers/net/wireless/ath/ath10k/core.c
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2022-06-16 07:07:07 +00:00
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@@ -1202,6 +1202,7 @@ success:
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2021-11-30 09:37:41 +00:00
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static int ath10k_core_fetch_board_data_api_1(struct ath10k *ar, int bd_ie_type)
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{
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const struct firmware *fw;
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+ char boardname[100];
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if (bd_ie_type == ATH10K_BD_IE_BOARD) {
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if (!ar->hw_params.fw.board) {
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2022-06-16 07:07:07 +00:00
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@@ -1209,9 +1210,19 @@ static int ath10k_core_fetch_board_data_
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2021-11-30 09:37:41 +00:00
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return -EINVAL;
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}
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+ scnprintf(boardname, sizeof(boardname), "board-%s-%s.bin",
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+ ath10k_bus_str(ar->hif.bus), dev_name(ar->dev));
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+
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ar->normal_mode_fw.board = ath10k_fetch_fw_file(ar,
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ar->hw_params.fw.dir,
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- ar->hw_params.fw.board);
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+ boardname);
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+ if (IS_ERR(ar->normal_mode_fw.board)) {
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+ fw = ath10k_fetch_fw_file(ar,
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+ ar->hw_params.fw.dir,
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+ ar->hw_params.fw.board);
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+ ar->normal_mode_fw.board = fw;
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+ }
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+
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if (IS_ERR(ar->normal_mode_fw.board))
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return PTR_ERR(ar->normal_mode_fw.board);
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