Commit 5671c8b5 authored by Wright Feng's avatar Wright Feng Committed by Kalle Valo
Browse files

brcmfmac: dump dongle memory when attaching failed 



To enhance FW debugging, we add dongle memory dump when hitting attaching
failure with PCIE bus. It can help developer to get more information
about dongle trap reason and root cause.

Signed-off-by: default avatarWright Feng <wright.feng@cypress.com>
Signed-off-by: default avatarChi-hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: default avatarIan Lin <ian.lin@infineon.com>
Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220929031001.9962-4-ian.lin@infineon.com
parent 2aca4f37

drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c

+2 −1
Original line number Diff line number Diff line
@@ -1399,6 +1399,7 @@ void brcmf_fw_crashed(struct device *dev) 


	brcmf_dev_coredump(dev);



	if (drvr->bus_reset.func)

		schedule_work(&drvr->bus_reset);

}

drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c

+7 −3
Original line number Diff line number Diff line
@@ -2068,13 +2068,14 @@ static void brcmf_pcie_setup(struct device *dev, int ret, 
	struct brcmf_commonring **flowrings;

	u32 i, nvram_len;



	bus = dev_get_drvdata(dev);

	pcie_bus_dev = bus->bus_priv.pcie;

	devinfo = pcie_bus_dev->devinfo;



	/* check firmware loading result */

	if (ret)

		goto fail;



	bus = dev_get_drvdata(dev);

	pcie_bus_dev = bus->bus_priv.pcie;

	devinfo = pcie_bus_dev->devinfo;

	brcmf_pcie_attach(devinfo);



	fw = fwreq->items[BRCMF_PCIE_FW_CODE].binary;
@@ -2148,6 +2149,9 @@ static void brcmf_pcie_setup(struct device *dev, int ret, 
	return;



fail:

	brcmf_err(bus, "Dongle setup failed\n");

	brcmf_pcie_bus_console_read(devinfo, true);

	brcmf_fw_crashed(dev);

	device_release_driver(dev);

}