mirror of https://github.com/hak5/openwrt.git
mac80211: backport brcmfmac fixes & debugging helpers from 4.18
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>
openwrt-19.07
Rafał Miłecki
parent
7316515891
commit
b26214adb5
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@ -0,0 +1,52 @@
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From f8793c26fe586659d6da3fa277e63961a69d314b Mon Sep 17 00:00:00 2001
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From: Arend Van Spriel <arend.vanspriel@broadcom.com>
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Date: Wed, 16 May 2018 14:11:58 +0200
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Subject: [PATCH] brcmfmac: move ALLFFMAC variable in flowring module
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The only user of ALLFFMAC is the flowring module so no need to
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expose it in a header file.
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Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
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Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
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Reviewed-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/common.c | 2 --
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drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h | 2 --
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drivers/net/wireless/broadcom/brcm80211/brcmfmac/flowring.c | 2 ++
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3 files changed, 2 insertions(+), 4 deletions(-)
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
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@@ -36,8 +36,6 @@ MODULE_AUTHOR("Broadcom Corporation");
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MODULE_DESCRIPTION("Broadcom 802.11 wireless LAN fullmac driver.");
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MODULE_LICENSE("Dual BSD/GPL");
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-const u8 ALLFFMAC[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
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-
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#define BRCMF_DEFAULT_SCAN_CHANNEL_TIME 40
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#define BRCMF_DEFAULT_SCAN_UNASSOC_TIME 40
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
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@@ -19,8 +19,6 @@
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#include <linux/platform_data/brcmfmac.h>
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#include "fwil_types.h"
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-extern const u8 ALLFFMAC[ETH_ALEN];
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-
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#define BRCMF_FW_ALTPATH_LEN 256
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/* Definitions for the module global and device specific settings are defined
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/flowring.c
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/flowring.c
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@@ -46,6 +46,8 @@ static const u8 brcmf_flowring_prio2fifo
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3
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};
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+static const u8 ALLFFMAC[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
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+
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static bool
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brcmf_flowring_is_tdls_mac(struct brcmf_flowring *flow, u8 mac[ETH_ALEN])
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@ -0,0 +1,76 @@
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From 8e072168f75ebce85b96cbcefea2b10ddbd5913f Mon Sep 17 00:00:00 2001
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From: Arend Van Spriel <arend.vanspriel@broadcom.com>
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Date: Wed, 16 May 2018 14:11:59 +0200
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Subject: [PATCH] brcmfmac: add support for sysfs initiated coredump
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The driver already supports device coredump initiated by firmware
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event. Since commit 3c47d19ff4dc ("drivers: base: add coredump driver
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ops") it is also possible to initiate it from user-space through
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sysfs. This patch adds support for SDIO and PCIe devices.
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[rafal@milecki.pl: use LINUX_VERSION_CODE]
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Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
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Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
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Reviewed-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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Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
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---
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drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c | 1 +
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drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h | 2 ++
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drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c | 8 ++++++++
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drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c | 1 +
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4 files changed, 12 insertions(+)
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
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@@ -1165,6 +1165,9 @@ static struct sdio_driver brcmf_sdmmc_dr
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#ifdef CONFIG_PM_SLEEP
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.pm = &brcmf_sdio_pm_ops,
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#endif /* CONFIG_PM_SLEEP */
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 17, 0)
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+ .coredump = brcmf_dev_coredump,
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+#endif
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},
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};
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h
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@@ -250,6 +250,8 @@ int brcmf_attach(struct device *dev, str
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void brcmf_detach(struct device *dev);
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/* Indication from bus module that dongle should be reset */
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void brcmf_dev_reset(struct device *dev);
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+/* Request from bus module to initiate a coredump */
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+void brcmf_dev_coredump(struct device *dev);
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/* Configure the "global" bus state used by upper layers */
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void brcmf_bus_change_state(struct brcmf_bus *bus, enum brcmf_bus_state state);
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
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@@ -1201,6 +1201,14 @@ void brcmf_dev_reset(struct device *dev)
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brcmf_fil_cmd_int_set(drvr->iflist[0], BRCMF_C_TERMINATED, 1);
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}
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+void brcmf_dev_coredump(struct device *dev)
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+{
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+ struct brcmf_bus *bus_if = dev_get_drvdata(dev);
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+
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+ if (brcmf_debug_create_memdump(bus_if, NULL, 0) < 0)
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+ brcmf_dbg(TRACE, "failed to create coredump\n");
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+}
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+
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void brcmf_detach(struct device *dev)
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{
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s32 i;
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
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@@ -2044,6 +2044,9 @@ static struct pci_driver brcmf_pciedrvr
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#ifdef CONFIG_PM
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.driver.pm = &brcmf_pciedrvr_pm,
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#endif
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 17, 0)
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+ .driver.coredump = brcmf_dev_coredump,
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+#endif
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};
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@ -0,0 +1,32 @@
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From d2af9b566554e01f9ad67b330ce569dbc130e5d3 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 14:12:01 +0200
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Subject: [PATCH] brcmfmac: validate user provided data for memdump before
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copying
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In patch "brcmfmac: add support for sysfs initiated coredump", a new
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scenario of brcmf_debug_create_memdump was added in which the user of
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the function might not necessarily provide prefix data. Hence the
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function should not assume the data is always valid and should perform a
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check before copying.
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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/debug.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c
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@@ -40,7 +40,8 @@ int brcmf_debug_create_memdump(struct br
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if (!dump)
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return -ENOMEM;
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- memcpy(dump, data, len);
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+ if (data && len > 0)
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+ memcpy(dump, data, len);
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err = brcmf_bus_get_memdump(bus, dump + len, ramsize);
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if (err) {
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vfree(dump);
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@ -0,0 +1,38 @@
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From 8a3ab2f38f1669e3be6433a1f6b82a077b38c4c7 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 14:12:02 +0200
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Subject: [PATCH] brcmfmac: trigger memory dump upon firmware halt signal
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PCIe dongle firmware signals a halt/trap through mailbox interrupt.
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Trigger a memory dump upon receiving such signal could help to provide
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useful information for issue debug.
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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/pcie.c | 5 +++++
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1 file changed, 5 insertions(+)
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
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@@ -182,6 +182,7 @@ static const struct brcmf_firmware_mappi
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#define BRCMF_D2H_DEV_D3_ACK 0x00000001
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#define BRCMF_D2H_DEV_DS_ENTER_REQ 0x00000002
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#define BRCMF_D2H_DEV_DS_EXIT_NOTE 0x00000004
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+#define BRCMF_D2H_DEV_FWHALT 0x10000000
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#define BRCMF_H2D_HOST_D3_INFORM 0x00000001
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#define BRCMF_H2D_HOST_DS_ACK 0x00000002
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@@ -717,6 +718,10 @@ static void brcmf_pcie_handle_mb_data(st
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devinfo->mbdata_completed = true;
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wake_up(&devinfo->mbdata_resp_wait);
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}
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+ if (dtoh_mb_data & BRCMF_D2H_DEV_FWHALT) {
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+ brcmf_dbg(PCIE, "D2H_MB_DATA: FW HALT\n");
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+ brcmf_dev_coredump(&devinfo->pdev->dev);
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+ }
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}
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@ -0,0 +1,30 @@
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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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@ -0,0 +1,70 @@
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From 373c83a801f15b1e3d02d855fad89112bd4ccbe0 Mon Sep 17 00:00:00 2001
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From: Michael Trimarchi <michael@amarulasolutions.com>
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Date: Wed, 30 May 2018 11:06:34 +0200
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Subject: [PATCH] brcmfmac: stop watchdog before detach and free everything
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Using built-in in kernel image without a firmware in filesystem
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or in the kernel image can lead to a kernel NULL pointer deference.
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Watchdog need to be stopped in brcmf_sdio_remove
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The system is going down NOW!
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[ 1348.110759] Unable to handle kernel NULL pointer dereference at virtual address 000002f8
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Sent SIGTERM to all processes
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[ 1348.121412] Mem abort info:
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[ 1348.126962] ESR = 0x96000004
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[ 1348.130023] Exception class = DABT (current EL), IL = 32 bits
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[ 1348.135948] SET = 0, FnV = 0
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[ 1348.138997] EA = 0, S1PTW = 0
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[ 1348.142154] Data abort info:
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[ 1348.145045] ISV = 0, ISS = 0x00000004
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[ 1348.148884] CM = 0, WnR = 0
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[ 1348.151861] user pgtable: 4k pages, 48-bit VAs, pgdp = (____ptrval____)
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[ 1348.158475] [00000000000002f8] pgd=0000000000000000
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[ 1348.163364] Internal error: Oops: 96000004 [#1] PREEMPT SMP
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[ 1348.168927] Modules linked in: ipv6
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[ 1348.172421] CPU: 3 PID: 1421 Comm: brcmf_wdog/mmc0 Not tainted 4.17.0-rc5-next-20180517 #18
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[ 1348.180757] Hardware name: Amarula A64-Relic (DT)
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[ 1348.185455] pstate: 60000005 (nZCv daif -PAN -UAO)
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[ 1348.190251] pc : brcmf_sdiod_freezer_count+0x0/0x20
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[ 1348.195124] lr : brcmf_sdio_watchdog_thread+0x64/0x290
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[ 1348.200253] sp : ffff00000b85be30
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[ 1348.203561] x29: ffff00000b85be30 x28: 0000000000000000
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[ 1348.208868] x27: ffff00000b6cb918 x26: ffff80003b990638
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[ 1348.214176] x25: ffff0000087b1a20 x24: ffff80003b94f800
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[ 1348.219483] x23: ffff000008e620c8 x22: ffff000008f0b660
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[ 1348.224790] x21: ffff000008c6a858 x20: 00000000fffffe00
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[ 1348.230097] x19: ffff80003b94f800 x18: 0000000000000001
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[ 1348.235404] x17: 0000ffffab2e8a74 x16: ffff0000080d7de8
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[ 1348.240711] x15: 0000000000000000 x14: 0000000000000400
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[ 1348.246018] x13: 0000000000000400 x12: 0000000000000001
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[ 1348.251324] x11: 00000000000002c4 x10: 0000000000000a10
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[ 1348.256631] x9 : ffff00000b85bc40 x8 : ffff80003be11870
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[ 1348.261937] x7 : ffff80003dfc7308 x6 : 000000078ff08b55
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[ 1348.267243] x5 : 00000139e1058400 x4 : 0000000000000000
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[ 1348.272550] x3 : dead000000000100 x2 : 958f2788d6618100
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[ 1348.277856] x1 : 00000000fffffe00 x0 : 0000000000000000
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Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
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Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
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Tested-by: Andy Shevchenko <andy.shevchenko@gmail.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 | 7 +++++++
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1 file changed, 7 insertions(+)
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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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@@ -4297,6 +4297,13 @@ void brcmf_sdio_remove(struct brcmf_sdio
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brcmf_dbg(TRACE, "Enter\n");
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if (bus) {
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+ /* Stop watchdog task */
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+ if (bus->watchdog_tsk) {
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+ send_sig(SIGTERM, bus->watchdog_tsk, 1);
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+ kthread_stop(bus->watchdog_tsk);
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+ bus->watchdog_tsk = NULL;
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+ }
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+
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/* De-register interrupt handler */
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brcmf_sdiod_intr_unregister(bus->sdiodev);
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@ -0,0 +1,41 @@
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From 299b6365a3b7cf7f5ea1c945a420e9ee4841d6f7 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
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Date: Sun, 22 Jul 2018 23:46:25 +0200
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Subject: [PATCH] brcmfmac: fix regression in parsing NVRAM for multiple
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devices
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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NVRAM is designed to work with Broadcom's SDK Linux kernel which fakes
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PCI domain 0 for all internal MMIO devices. Since official Linux kernel
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uses platform devices for that purpose there is a mismatch in numbering
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PCI domains.
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There used to be a fix for that problem but it was accidentally dropped
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during the last firmware loading rework. That resulted in brcmfmac not
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being able to extract device specific NVRAM content and all kind of
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calibration problems.
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Reported-by: Aditya Xavier <adityaxavier@gmail.com>
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Fixes: 2baa3aaee27f ("brcmfmac: introduce brcmf_fw_alloc_request() function")
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Cc: stable@vger.kernel.org # v4.17+
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Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
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Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
|
||||
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
|
||||
---
|
||||
drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c | 3 ++-
|
||||
1 file changed, 2 insertions(+), 1 deletion(-)
|
||||
|
||||
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
|
||||
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
|
||||
@@ -1785,7 +1785,8 @@ brcmf_pcie_prepare_fw_request(struct brc
|
||||
fwreq->items[BRCMF_PCIE_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
|
||||
fwreq->items[BRCMF_PCIE_FW_NVRAM].type = BRCMF_FW_TYPE_NVRAM;
|
||||
fwreq->items[BRCMF_PCIE_FW_NVRAM].flags = BRCMF_FW_REQF_OPTIONAL;
|
||||
- fwreq->domain_nr = pci_domain_nr(devinfo->pdev->bus);
|
||||
+ /* NVRAM reserves PCI domain 0 for Broadcom's SDK faked bus */
|
||||
+ fwreq->domain_nr = pci_domain_nr(devinfo->pdev->bus) + 1;
|
||||
fwreq->bus_nr = devinfo->pdev->bus->number;
|
||||
|
||||
return fwreq;
|
||||
|
|
@ -13,7 +13,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
|||
|
||||
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
|
||||
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
|
||||
@@ -1314,6 +1314,7 @@ int __init brcmf_core_init(void)
|
||||
@@ -1322,6 +1322,7 @@ int __init brcmf_core_init(void)
|
||||
{
|
||||
if (!schedule_work(&brcmf_driver_work))
|
||||
return -EBUSY;
|
||||
|
|
|
|||
|
|
@ -9,7 +9,7 @@ Signed-off-by: Phil Elwell <phil@raspberrypi.org>
|
|||
|
||||
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
|
||||
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
|
||||
@@ -72,7 +72,11 @@ static int brcmf_fcmode;
|
||||
@@ -70,7 +70,11 @@ static int brcmf_fcmode;
|
||||
module_param_named(fcmode, brcmf_fcmode, int, 0);
|
||||
MODULE_PARM_DESC(fcmode, "Mode of firmware signalled flow control");
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue