From 376a30c7c9a05382d2cad09e9ff9b2998d0d53c3 Mon Sep 17 00:00:00 2001
From: Wen Gong <wgong@codeaurora.org>
Date: Wed, 27 Nov 2019 02:59:29 +0000
Subject: [PATCH] ath10k: set max mtu to 1500 for sdio chip
Git-commit: 376a30c7c9a05382d2cad09e9ff9b2998d0d53c3
Patch-mainline: v5.6-rc1
References: jsc#SLE-13430
For sdio chip, the max credit size in firmware is 1556, the 1556
include payload, ieee80211 header, htt header, htc header. So it
need to set the max mtu to 1500 to forbidden TX packet which exceed
1500 form application.
Tested with QCA6174 SDIO with firmware
WLAN.RMH.4.4.1-00017-QCARMSWP-1.
Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/wireless/ath/ath10k/sdio.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/sdio.c b/drivers/net/wireless/ath/ath10k/sdio.c
index 3e63adfe3e9c..2e155bba2aa3 100644
--- a/drivers/net/wireless/ath/ath10k/sdio.c
+++ b/drivers/net/wireless/ath/ath10k/sdio.c
@@ -2137,6 +2137,8 @@ static int ath10k_sdio_probe(struct sdio_func *func,
bus_params.chip_id = 0;
bus_params.hl_msdu_ids = true;
+ ar->hw->max_mtu = ETH_DATA_LEN;
+
ret = ath10k_core_register(ar, &bus_params);
if (ret) {
ath10k_err(ar, "failed to register driver core: %d\n", ret);
--
2.16.4