b26214adb5
The most important is probably regression fix in handling platform
NVRAM. That bug stopped hardware from being properly calibrated breaking
e.g. 5 GHz for Netgear R8000.
Other than that it triggers memory dumps when experiencing firmware
problems which is important for debugging purposes.
Fixes: 7e8eb7f309 ("mac80211: backport brcmfmac firmware & clm_blob loading rework")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
30 lines
1.2 KiB
Diff
30 lines
1.2 KiB
Diff
From b8248236e92790ac635caeb4156e46ea2417e037 Mon Sep 17 00:00:00 2001
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From: Franky Lin <franky.lin@broadcom.com>
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Date: Wed, 16 May 2018 14:12:03 +0200
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Subject: [PATCH] brcmfmac: trigger memory dump on SDIO firmware halt message
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Attempt to dump dongle memory for debug upon receiving firmware halt
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message through dongle to host mail box interrupt.
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Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
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Signed-off-by: Franky Lin <franky.lin@broadcom.com>
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Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
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Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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---
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drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
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@@ -1072,8 +1072,10 @@ static u32 brcmf_sdio_hostmail(struct br
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bus->sdcnt.f1regdata += 2;
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/* dongle indicates the firmware has halted/crashed */
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- if (hmb_data & HMB_DATA_FWHALT)
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+ if (hmb_data & HMB_DATA_FWHALT) {
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brcmf_err("mailbox indicates firmware halted\n");
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+ brcmf_dev_coredump(&sdiod->func1->dev);
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+ }
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/* Dongle recomposed rx frames, accept them again */
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if (hmb_data & HMB_DATA_NAKHANDLED) {
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