From 8e072168f75ebce85b96cbcefea2b10ddbd5913f Mon Sep 17 00:00:00 2001 From: Arend Van Spriel Date: Wed, 16 May 2018 14:11:59 +0200 Subject: [PATCH] brcmfmac: add support for sysfs initiated coredump The driver already supports device coredump initiated by firmware event. Since commit 3c47d19ff4dc ("drivers: base: add coredump driver ops") it is also possible to initiate it from user-space through sysfs. This patch adds support for SDIO and PCIe devices. Reviewed-by: Hante Meuleman Reviewed-by: Pieter-Paul Giesberts Reviewed-by: Franky Lin Signed-off-by: Arend van Spriel Signed-off-by: Kalle Valo --- drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c | 1 + drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h | 2 ++ drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c | 8 ++++++++ drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c | 1 + 4 files changed, 12 insertions(+) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c index a1915411c280..d2f788d88668 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c @@ -1165,6 +1165,7 @@ static struct sdio_driver brcmf_sdmmc_driver = { #ifdef CONFIG_PM_SLEEP .pm = &brcmf_sdio_pm_ops, #endif /* CONFIG_PM_SLEEP */ + .coredump = brcmf_dev_coredump, }, }; diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h index 27e693e93f21..c4965184cdf3 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h @@ -250,6 +250,8 @@ int brcmf_attach(struct device *dev, struct brcmf_mp_device *settings); void brcmf_detach(struct device *dev); /* Indication from bus module that dongle should be reset */ void brcmf_dev_reset(struct device *dev); +/* Request from bus module to initiate a coredump */ +void brcmf_dev_coredump(struct device *dev); /* Configure the "global" bus state used by upper layers */ void brcmf_bus_change_state(struct brcmf_bus *bus, enum brcmf_bus_state state); diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c index 8d4511eaa9b9..72954fd6df3b 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c @@ -1180,6 +1180,14 @@ void brcmf_dev_reset(struct device *dev) brcmf_fil_cmd_int_set(drvr->iflist[0], BRCMF_C_TERMINATED, 1); } +void brcmf_dev_coredump(struct device *dev) +{ + struct brcmf_bus *bus_if = dev_get_drvdata(dev); + + if (brcmf_debug_create_memdump(bus_if, NULL, 0) < 0) + brcmf_dbg(TRACE, "failed to create coredump\n"); +} + void brcmf_detach(struct device *dev) { s32 i; diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c index f0797aeada67..5baa8372371d 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c @@ -2044,6 +2044,7 @@ static struct pci_driver brcmf_pciedrvr = { #ifdef CONFIG_PM .driver.pm = &brcmf_pciedrvr_pm, #endif + .driver.coredump = brcmf_dev_coredump, };