diff options
Diffstat (limited to 'package/kernel/mac80211/patches/brcm/360-v5.2-0003-brcmfmac-reset-PCIe-bus-on-a-firmware-crash.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/brcm/360-v5.2-0003-brcmfmac-reset-PCIe-bus-on-a-firmware-crash.patch | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/package/kernel/mac80211/patches/brcm/360-v5.2-0003-brcmfmac-reset-PCIe-bus-on-a-firmware-crash.patch b/package/kernel/mac80211/patches/brcm/360-v5.2-0003-brcmfmac-reset-PCIe-bus-on-a-firmware-crash.patch deleted file mode 100644 index 5617d141b3..0000000000 --- a/package/kernel/mac80211/patches/brcm/360-v5.2-0003-brcmfmac-reset-PCIe-bus-on-a-firmware-crash.patch +++ /dev/null @@ -1,153 +0,0 @@ -From 4684997d9eea29380000e062755aa6d368d789a3 Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> -Date: Tue, 26 Feb 2019 14:11:19 +0100 -Subject: [PATCH] brcmfmac: reset PCIe bus on a firmware crash -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -This includes bus reset & reloading a firmware. It should be sufficient -for a user space to (setup and) use a wireless device again. - -Support for reset on USB & SDIO can be added later. - -Signed-off-by: Rafał Miłecki <rafal@milecki.pl> -Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com> -Signed-off-by: Kalle Valo <kvalo@codeaurora.org> ---- - .../broadcom/brcm80211/brcmfmac/bus.h | 10 ++++++ - .../broadcom/brcm80211/brcmfmac/core.c | 12 +++++++ - .../broadcom/brcm80211/brcmfmac/core.h | 2 ++ - .../broadcom/brcm80211/brcmfmac/pcie.c | 35 +++++++++++++++++++ - 4 files changed, 59 insertions(+) - ---- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h -+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h -@@ -91,6 +91,7 @@ struct brcmf_bus_ops { - int (*get_fwname)(struct device *dev, const char *ext, - unsigned char *fw_name); - void (*debugfs_create)(struct device *dev); -+ int (*reset)(struct device *dev); - }; - - -@@ -245,6 +246,15 @@ void brcmf_bus_debugfs_create(struct brc - return bus->ops->debugfs_create(bus->dev); - } - -+static inline -+int brcmf_bus_reset(struct brcmf_bus *bus) -+{ -+ if (!bus->ops->reset) -+ return -EOPNOTSUPP; -+ -+ return bus->ops->reset(bus->dev); -+} -+ - /* - * interface functions from common layer - */ ---- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c -+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c -@@ -1105,6 +1105,14 @@ static int brcmf_revinfo_read(struct seq - return 0; - } - -+static void brcmf_core_bus_reset(struct work_struct *work) -+{ -+ struct brcmf_pub *drvr = container_of(work, struct brcmf_pub, -+ bus_reset); -+ -+ brcmf_bus_reset(drvr->bus_if); -+} -+ - static int brcmf_bus_started(struct brcmf_pub *drvr, struct cfg80211_ops *ops) - { - int ret = -1; -@@ -1176,6 +1184,8 @@ static int brcmf_bus_started(struct brcm - #endif - #endif /* CONFIG_INET */ - -+ INIT_WORK(&drvr->bus_reset, brcmf_core_bus_reset); -+ - /* populate debugfs */ - brcmf_debugfs_add_entry(drvr, "revinfo", brcmf_revinfo_read); - brcmf_feat_debugfs_create(drvr); -@@ -1302,6 +1312,8 @@ void brcmf_fw_crashed(struct device *dev - bphy_err(drvr, "Firmware has halted or crashed\n"); - - brcmf_dev_coredump(dev); -+ -+ schedule_work(&drvr->bus_reset); - } - - void brcmf_detach(struct device *dev) ---- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h -+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h -@@ -143,6 +143,8 @@ struct brcmf_pub { - struct notifier_block inet6addr_notifier; - struct brcmf_mp_device *settings; - -+ struct work_struct bus_reset; -+ - u8 clmver[BRCMF_DCMD_SMLEN]; - }; - ---- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c -+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c -@@ -345,6 +345,10 @@ static const u32 brcmf_ring_itemsize[BRC - BRCMF_D2H_MSGRING_RX_COMPLETE_ITEMSIZE - }; - -+static void brcmf_pcie_setup(struct device *dev, int ret, -+ struct brcmf_fw_request *fwreq); -+static struct brcmf_fw_request * -+brcmf_pcie_prepare_fw_request(struct brcmf_pciedev_info *devinfo); - - static u32 - brcmf_pcie_read_reg32(struct brcmf_pciedev_info *devinfo, u32 reg_offset) -@@ -1409,6 +1413,36 @@ int brcmf_pcie_get_fwname(struct device - return 0; - } - -+static int brcmf_pcie_reset(struct device *dev) -+{ -+ struct brcmf_bus *bus_if = dev_get_drvdata(dev); -+ struct brcmf_pciedev *buspub = bus_if->bus_priv.pcie; -+ struct brcmf_pciedev_info *devinfo = buspub->devinfo; -+ struct brcmf_fw_request *fwreq; -+ int err; -+ -+ brcmf_detach(dev); -+ -+ brcmf_pcie_release_irq(devinfo); -+ brcmf_pcie_release_scratchbuffers(devinfo); -+ brcmf_pcie_release_ringbuffers(devinfo); -+ brcmf_pcie_reset_device(devinfo); -+ -+ fwreq = brcmf_pcie_prepare_fw_request(devinfo); -+ if (!fwreq) { -+ dev_err(dev, "Failed to prepare FW request\n"); -+ return -ENOMEM; -+ } -+ -+ err = brcmf_fw_get_firmwares(dev, fwreq, brcmf_pcie_setup); -+ if (err) { -+ dev_err(dev, "Failed to prepare FW request\n"); -+ kfree(fwreq); -+ } -+ -+ return err; -+} -+ - static const struct brcmf_bus_ops brcmf_pcie_bus_ops = { - .txdata = brcmf_pcie_tx, - .stop = brcmf_pcie_down, -@@ -1418,6 +1452,7 @@ static const struct brcmf_bus_ops brcmf_ - .get_ramsize = brcmf_pcie_get_ramsize, - .get_memdump = brcmf_pcie_get_memdump, - .get_fwname = brcmf_pcie_get_fwname, -+ .reset = brcmf_pcie_reset, - }; - - |