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mirror of git://projects.qi-hardware.com/openwrt-xburst.git synced 2024-11-27 19:03:08 +02:00

linux: generic: add support for 3.1-rc1

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27940 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
jogo 2011-08-09 12:19:43 +00:00
parent b73001d417
commit b460d9e23f
115 changed files with 66018 additions and 0 deletions

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@ -0,0 +1,93 @@
From 2d303b4683145f7dbc918bd14d04e1396581b2ce Mon Sep 17 00:00:00 2001
From: Imre Kaloz <kaloz@openwrt.org>
Date: Thu, 7 Jul 2011 12:05:21 +0200
Subject: [PATCH] ARM: support XZ compressed kernels
Wire up support for the XZ decompressor
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
---
arch/arm/Kconfig | 1 +
arch/arm/boot/compressed/Makefile | 11 +++++++++--
arch/arm/boot/compressed/decompress.c | 4 ++++
arch/arm/boot/compressed/piggy.xzkern.S | 6 ++++++
lib/xz/xz_dec_stream.c | 1 +
5 files changed, 21 insertions(+), 2 deletions(-)
create mode 100644 arch/arm/boot/compressed/piggy.xzkern.S
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -20,6 +20,7 @@ config ARM
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_LZO
select HAVE_KERNEL_LZMA
+ select HAVE_KERNEL_XZ
select HAVE_IRQ_WORK
select HAVE_PERF_EVENTS
select PERF_USE_VMALLOC
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -88,13 +88,14 @@ SEDFLAGS = s/TEXT_START/$(ZTEXTADDR)/;s/
suffix_$(CONFIG_KERNEL_GZIP) = gzip
suffix_$(CONFIG_KERNEL_LZO) = lzo
suffix_$(CONFIG_KERNEL_LZMA) = lzma
+suffix_$(CONFIG_KERNEL_XZ) = xzkern
targets := vmlinux vmlinux.lds \
piggy.$(suffix_y) piggy.$(suffix_y).o \
font.o font.c head.o misc.o $(OBJS)
# Make sure files are removed during clean
-extra-y += piggy.gzip piggy.lzo piggy.lzma lib1funcs.S
+extra-y += piggy.gzip piggy.lzo piggy.lzma piggy.xzkern lib1funcs.S ashldi3.S
ifeq ($(CONFIG_FUNCTION_TRACER),y)
ORIG_CFLAGS := $(KBUILD_CFLAGS)
@@ -139,8 +140,14 @@ bad_syms=$$($(CROSS_COMPILE)nm $@ | sed
( echo "following symbols must have non local/private scope:" >&2; \
echo "$$bad_syms" >&2; rm -f $@; false )
+# For __aeabi_llsl
+ashldi3 = $(obj)/ashldi3.o
+
+$(obj)/ashldi3.S: $(srctree)/arch/$(SRCARCH)/lib/ashldi3.S FORCE
+ $(call cmd,shipped)
+
$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \
- $(addprefix $(obj)/, $(OBJS)) $(lib1funcs) FORCE
+ $(addprefix $(obj)/, $(OBJS)) $(lib1funcs) $(ashldi3) FORCE
$(call if_changed,ld)
@$(check_for_bad_syms)
--- a/arch/arm/boot/compressed/decompress.c
+++ b/arch/arm/boot/compressed/decompress.c
@@ -44,6 +44,10 @@ extern void error(char *);
#include "../../../../lib/decompress_unlzma.c"
#endif
+#ifdef CONFIG_KERNEL_XZ
+#include "../../../../lib/decompress_unxz.c"
+#endif
+
int do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x))
{
return decompress(input, len, NULL, NULL, output, NULL, error);
--- /dev/null
+++ b/arch/arm/boot/compressed/piggy.xzkern.S
@@ -0,0 +1,6 @@
+ .section .piggydata,#alloc
+ .globl input_data
+input_data:
+ .incbin "arch/arm/boot/compressed/piggy.xzkern"
+ .globl input_data_end
+input_data_end:
--- a/lib/xz/xz_dec_stream.c
+++ b/lib/xz/xz_dec_stream.c
@@ -9,6 +9,7 @@
#include "xz_private.h"
#include "xz_stream.h"
+#include <linux/kernel.h>
/* Hash used to validate the Index field */
struct xz_dec_hash {

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@ -0,0 +1,10 @@
--- a/include/linux/mtd/physmap.h
+++ b/include/linux/mtd/physmap.h
@@ -17,6 +17,7 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
+#include <linux/platform_device.h>
struct map_info;
struct platform_device;

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@ -0,0 +1,11 @@
--- a/scripts/setlocalversion
+++ b/scripts/setlocalversion
@@ -168,7 +168,7 @@ else
# annotated or signed tagged state (as git describe only
# looks at signed or annotated tags - git tag -a/-s) and
# LOCALVERSION= is not specified
- if test "${LOCALVERSION+set}" != "set"; then
+ if test "${CONFIG_LOCALVERSION+set}" != "set"; then
scm=$(scm_version --short)
res="$res${scm:++}"
fi

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@ -0,0 +1,24 @@
--- a/Makefile
+++ b/Makefile
@@ -559,9 +559,9 @@ endif # $(dot-config)
all: vmlinux
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
-KBUILD_CFLAGS += -Os
+KBUILD_CFLAGS += -Os -fno-caller-saves
else
-KBUILD_CFLAGS += -O2
+KBUILD_CFLAGS += -O2 -fno-reorder-blocks -fno-tree-ch -fno-caller-saves
endif
include $(srctree)/arch/$(SRCARCH)/Makefile
@@ -620,6 +620,9 @@ endif
NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
CHECKFLAGS += $(NOSTDINC_FLAGS)
+# improve gcc optimization
+CFLAGS += $(call cc-option,-funit-at-a-time,)
+
# warn about C99 declaration after statement
KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)

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@ -0,0 +1,78 @@
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -22,6 +22,35 @@
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
+#ifdef __APPLE__
+/* Darwin has no memmem implementation, this one is ripped of the uClibc-0.9.28 source */
+void *memmem (const void *haystack, size_t haystack_len,
+ const void *needle, size_t needle_len)
+{
+ const char *begin;
+ const char *const last_possible
+ = (const char *) haystack + haystack_len - needle_len;
+
+ if (needle_len == 0)
+ /* The first occurrence of the empty string is deemed to occur at
+ the beginning of the string. */
+ return (void *) haystack;
+
+ /* Sanity check, otherwise the loop might search through the whole
+ memory. */
+ if (__builtin_expect (haystack_len < needle_len, 0))
+ return NULL;
+
+ for (begin = (const char *) haystack; begin <= last_possible; ++begin)
+ if (begin[0] == ((const char *) needle)[0] &&
+ !memcmp ((const void *) &begin[1],
+ (const void *) ((const char *) needle + 1),
+ needle_len - 1))
+ return (void *) begin;
+
+ return NULL;
+}
+#endif
#ifndef ARRAY_SIZE
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0]))
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -148,6 +148,9 @@ check-lxdialog := $(srctree)/$(src)/lxd
# we really need to do so. (Do not call gcc as part of make mrproper)
HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags) \
-DLOCALE
+ifeq ($(shell uname -s),Darwin)
+HOST_LOADLIBES += -lncurses
+endif
# ===========================================================================
# Shared Makefile for the various kconfig executables:
--- a/scripts/mod/mk_elfconfig.c
+++ b/scripts/mod/mk_elfconfig.c
@@ -1,7 +1,11 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#ifndef __APPLE__
#include <elf.h>
+#else
+#include "../../../../../tools/sstrip/include/elf.h"
+#endif
int
main(int argc, char **argv)
--- a/scripts/mod/modpost.h
+++ b/scripts/mod/modpost.h
@@ -7,7 +7,11 @@
#include <sys/mman.h>
#include <fcntl.h>
#include <unistd.h>
+#if !(defined(__APPLE__) || defined(__CYGWIN__))
#include <elf.h>
+#else
+#include "../../../../../tools/sstrip/include/elf.h"
+#endif
#include "elfconfig.h"

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@ -0,0 +1,17 @@
--- a/include/linux/stddef.h
+++ b/include/linux/stddef.h
@@ -16,6 +16,7 @@ enum {
false = 0,
true = 1
};
+#endif /* __KERNEL__ */
#undef offsetof
#ifdef __compiler_offsetof
@@ -23,6 +24,5 @@ enum {
#else
#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
#endif
-#endif /* __KERNEL__ */
#endif

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@ -0,0 +1,89 @@
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -52,6 +52,27 @@
#define LOAD_OFFSET 0
#endif
+#ifndef SYMTAB_KEEP_STR
+#define SYMTAB_KEEP_STR *(__ksymtab_strings+*)
+#define SYMTAB_DISCARD_STR
+#else
+#define SYMTAB_DISCARD_STR *(__ksymtab_strings+*)
+#endif
+
+#ifndef SYMTAB_KEEP
+#define SYMTAB_KEEP *(SORT(___ksymtab+*))
+#define SYMTAB_DISCARD
+#else
+#define SYMTAB_DISCARD *(SORT(___ksymtab+*))
+#endif
+
+#ifndef SYMTAB_KEEP_GPL
+#define SYMTAB_KEEP_GPL *(SORT(___ksymtab_gpl+*))
+#define SYMTAB_DISCARD_GPL
+#else
+#define SYMTAB_DISCARD_GPL *(SORT(___ksymtab_gpl+*))
+#endif
+
#ifndef SYMBOL_PREFIX
#define VMLINUX_SYMBOL(sym) sym
#else
@@ -276,14 +297,14 @@
/* Kernel symbol table: Normal symbols */ \
__ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \
VMLINUX_SYMBOL(__start___ksymtab) = .; \
- *(SORT(___ksymtab+*)) \
+ SYMTAB_KEEP \
VMLINUX_SYMBOL(__stop___ksymtab) = .; \
} \
\
/* Kernel symbol table: GPL-only symbols */ \
__ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \
VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \
- *(SORT(___ksymtab_gpl+*)) \
+ SYMTAB_KEEP_GPL \
VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \
} \
\
@@ -345,7 +366,7 @@
\
/* Kernel symbol table: strings */ \
__ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \
- *(__ksymtab_strings) \
+ SYMTAB_KEEP_STR \
} \
\
/* __*init sections */ \
@@ -677,6 +698,9 @@
EXIT_TEXT \
EXIT_DATA \
EXIT_CALL \
+ SYMTAB_DISCARD \
+ SYMTAB_DISCARD_GPL \
+ SYMTAB_DISCARD_STR \
*(.discard) \
*(.discard.*) \
}
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -232,12 +232,19 @@ struct module_use {
#define __CRC_SYMBOL(sym, sec)
#endif
+#ifdef MODULE
+#define __EXPORT_SUFFIX(sym)
+#else
+#define __EXPORT_SUFFIX(sym) "+" #sym
+#endif
+
/* For every exported symbol, place a struct in the __ksymtab section */
#define __EXPORT_SYMBOL(sym, sec) \
extern typeof(sym) sym; \
__CRC_SYMBOL(sym, sec) \
static const char __kstrtab_##sym[] \
- __attribute__((section("__ksymtab_strings"), aligned(1))) \
+ __attribute__((section("__ksymtab_strings" \
+ __EXPORT_SUFFIX(sym)), aligned(1))) \
= MODULE_SYMBOL_PREFIX #sym; \
static const struct kernel_symbol __ksymtab_##sym \
__used \

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@ -0,0 +1,54 @@
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -292,7 +292,7 @@ cmd_bzip2 = (cat $(filter-out FORCE,$^)
quiet_cmd_lzma = LZMA $@
cmd_lzma = (cat $(filter-out FORCE,$^) | \
- lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
+ lzma e -d20 -lc1 -lp2 -pb2 -eos -si -so && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
(rm -f $@ ; false)
quiet_cmd_lzo = LZO $@
--- a/scripts/gen_initramfs_list.sh
+++ b/scripts/gen_initramfs_list.sh
@@ -226,7 +226,7 @@ cpio_list=
output="/dev/stdout"
output_file=""
is_cpio_compressed=
-compr="gzip -n -9 -f"
+compr="gzip -n -9 -f -"
arg="$1"
case "$arg" in
@@ -240,9 +240,9 @@ case "$arg" in
output_file="$1"
cpio_list="$(mktemp ${TMPDIR:-/tmp}/cpiolist.XXXXXX)"
output=${cpio_list}
- echo "$output_file" | grep -q "\.gz$" && compr="gzip -n -9 -f"
- echo "$output_file" | grep -q "\.bz2$" && compr="bzip2 -9 -f"
- echo "$output_file" | grep -q "\.lzma$" && compr="lzma -9 -f"
+ echo "$output_file" | grep -q "\.gz$" && compr="gzip -n -9 -f -"
+ echo "$output_file" | grep -q "\.bz2$" && compr="bzip2 -9 -f -"
+ echo "$output_file" | grep -q "\.lzma$" && compr="lzma e -d20 -lc1 -lp2 -pb2 -eos -si -so"
echo "$output_file" | grep -q "\.xz$" && \
compr="xz --check=crc32 --lzma2=dict=1MiB"
echo "$output_file" | grep -q "\.lzo$" && compr="lzop -9 -f"
@@ -303,7 +303,7 @@ if [ ! -z ${output_file} ]; then
if [ "${is_cpio_compressed}" = "compressed" ]; then
cat ${cpio_tfile} > ${output_file}
else
- (cat ${cpio_tfile} | ${compr} - > ${output_file}) \
+ (cat ${cpio_tfile} | ${compr} > ${output_file}) \
|| (rm -f ${output_file} ; false)
fi
[ -z ${cpio_file} ] && rm ${cpio_tfile}
--- a/lib/decompress.c
+++ b/lib/decompress.c
@@ -40,6 +40,7 @@ static const struct compress_format {
{ {037, 0236}, "gzip", gunzip },
{ {0x42, 0x5a}, "bzip2", bunzip2 },
{ {0x5d, 0x00}, "lzma", unlzma },
+ { {0x6d, 0x00}, "lzma-openwrt", unlzma },
{ {0xfd, 0x37}, "xz", unxz },
{ {0x89, 0x4c}, "lzo", unlzo },
{ {0, 0}, NULL, NULL }

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@ -0,0 +1,18 @@
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -163,7 +163,6 @@ config NF_CONNTRACK_FTP
config NF_CONNTRACK_H323
tristate "H.323 protocol support"
- depends on (IPV6 || IPV6=n)
depends on NETFILTER_ADVANCED
help
H.323 is a VoIP signalling protocol from ITU-T. As one of the most
@@ -611,7 +610,6 @@ config NETFILTER_XT_TARGET_SECMARK
config NETFILTER_XT_TARGET_TCPMSS
tristate '"TCPMSS" target support'
- depends on (IPV6 || IPV6=n)
default m if NETFILTER_ADVANCED=n
---help---
This option adds a `TCPMSS' target, which allows you to alter the

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@ -0,0 +1,11 @@
--- a/sound/core/Kconfig
+++ b/sound/core/Kconfig
@@ -8,7 +8,7 @@ config SND_PCM
select GCD
config SND_HWDEP
- tristate
+ tristate "Sound hardware support"
config SND_RAWMIDI
tristate

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@ -0,0 +1,10 @@
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -172,6 +172,7 @@ config CRYPTO_DEV_MV_CESA
depends on PLAT_ORION
select CRYPTO_ALGAPI
select CRYPTO_AES
+ select CRYPTO_HASH2
select CRYPTO_BLKCIPHER2
help
This driver allows you to utilize the Cryptographic Engines and

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@ -0,0 +1,29 @@
--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
@@ -29,6 +29,7 @@ config SSB_SPROM
config SSB_BLOCKIO
bool
depends on SSB
+ default y
config SSB_PCIHOST_POSSIBLE
bool
@@ -49,7 +50,7 @@ config SSB_PCIHOST
config SSB_B43_PCI_BRIDGE
bool
depends on SSB_PCIHOST
- default n
+ default y
config SSB_PCMCIAHOST_POSSIBLE
bool
--- a/drivers/bcma/Kconfig
+++ b/drivers/bcma/Kconfig
@@ -17,6 +17,7 @@ config BCMA
config BCMA_BLOCKIO
bool
depends on BCMA
+ default y
config BCMA_HOST_PCI_POSSIBLE
bool

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@ -0,0 +1,23 @@
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -197,16 +197,16 @@ config BCH_CONST_T
# Textsearch support is select'ed if needed
#
config TEXTSEARCH
- boolean
+ boolean "Textsearch support"
config TEXTSEARCH_KMP
- tristate
+ tristate "Textsearch KMP"
config TEXTSEARCH_BM
- tristate
+ tristate "Textsearch BM"
config TEXTSEARCH_FSM
- tristate
+ tristate "Textsearch FSM"
config BTREE
boolean

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@ -0,0 +1,19 @@
--- a/net/wireless/Kconfig
+++ b/net/wireless/Kconfig
@@ -142,13 +142,13 @@ config LIB80211
you want this built into your kernel.
config LIB80211_CRYPT_WEP
- tristate
+ tristate "LIB80211_CRYPT_WEP"
config LIB80211_CRYPT_CCMP
- tristate
+ tristate "LIB80211_CRYPT_CCMP"
config LIB80211_CRYPT_TKIP
- tristate
+ tristate "LIB80211_CRYPT_TKIP"
config LIB80211_DEBUG
bool "lib80211 debugging messages"

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@ -0,0 +1,47 @@
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -31,7 +31,7 @@ config CRYPTO_FIPS
this is.
config CRYPTO_ALGAPI
- tristate
+ tristate "ALGAPI"
select CRYPTO_ALGAPI2
help
This option provides the API for cryptographic algorithms.
@@ -40,7 +40,7 @@ config CRYPTO_ALGAPI2
tristate
config CRYPTO_AEAD
- tristate
+ tristate "AEAD"
select CRYPTO_AEAD2
select CRYPTO_ALGAPI
@@ -49,7 +49,7 @@ config CRYPTO_AEAD2
select CRYPTO_ALGAPI2
config CRYPTO_BLKCIPHER
- tristate
+ tristate "BLKCIPHER"
select CRYPTO_BLKCIPHER2
select CRYPTO_ALGAPI
@@ -60,7 +60,7 @@ config CRYPTO_BLKCIPHER2
select CRYPTO_WORKQUEUE
config CRYPTO_HASH
- tristate
+ tristate "HASH"
select CRYPTO_HASH2
select CRYPTO_ALGAPI
@@ -69,7 +69,7 @@ config CRYPTO_HASH2
select CRYPTO_ALGAPI2
config CRYPTO_RNG
- tristate
+ tristate "RNG"
select CRYPTO_RNG2
select CRYPTO_ALGAPI

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@ -0,0 +1,22 @@
--- a/net/wireless/Kconfig
+++ b/net/wireless/Kconfig
@@ -1,5 +1,5 @@
config WIRELESS_EXT
- bool
+ bool "Wireless extensions"
config WEXT_CORE
def_bool y
@@ -11,10 +11,10 @@ config WEXT_PROC
depends on WEXT_CORE
config WEXT_SPY
- bool
+ bool "WEXT_SPY"
config WEXT_PRIV
- bool
+ bool "WEXT_PRIV"
config CFG80211
tristate "cfg80211 - wireless configuration API"

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@ -0,0 +1,39 @@
From: Mark Miller <mark@mirell.org>
This exposes the CONFIG_BOOT_RAW symbol in Kconfig. This is needed on
certain Broadcom chipsets running CFE in order to load the kernel.
Signed-off-by: Mark Miller <mark@mirell.org>
Acked-by: Rob Landley <rob@landley.net>
---
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -853,9 +853,6 @@ config ARC
config ARCH_MAY_HAVE_PC_FDC
bool
-config BOOT_RAW
- bool
-
config CEVT_BCM1480
bool
@@ -2303,6 +2300,18 @@ config USE_OF
help
Include support for flattened device tree machine descriptions.
+config BOOT_RAW
+ bool "Enable the kernel to be executed from the load address"
+ default n
+ help
+ Allow the kernel to be executed from the load address for
+ bootloaders which cannot read the ELF format. This places
+ a jump to start_kernel at the load address.
+
+ If unsure, say N.
+
+
+
endmenu
config LOCKDEP_SUPPORT

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@ -0,0 +1,28 @@
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -952,6 +952,10 @@ config SYNC_R4K
config MIPS_MACHINE
def_bool n
+config IMAGE_CMDLINE_HACK
+ bool "OpenWrt specific image command line hack"
+ default n
+
config NO_IOPORT
def_bool n
--- a/arch/mips/kernel/head.S
+++ b/arch/mips/kernel/head.S
@@ -141,6 +141,12 @@ FEXPORT(__kernel_entry)
j kernel_entry
#endif
+#ifdef CONFIG_IMAGE_CMDLINE_HACK
+ .ascii "CMDLINE:"
+EXPORT(__image_cmdline)
+ .fill 0x400
+#endif /* CONFIG_IMAGE_CMDLINE_HACK */
+
__REF
NESTED(kernel_entry, 16, sp) # kernel entry point

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@ -0,0 +1,18 @@
--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
@@ -85,6 +85,7 @@ register struct thread_info *__current_t
#define STACK_WARN (THREAD_SIZE / 8)
+#if 0
#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
#ifdef CONFIG_DEBUG_STACK_USAGE
@@ -96,6 +97,7 @@ register struct thread_info *__current_t
#endif
#define free_thread_info(info) kfree(info)
+#endif
#endif /* !__ASSEMBLY__ */

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@ -0,0 +1,11 @@
--- a/arch/mips/kernel/machine_kexec.c
+++ b/arch/mips/kernel/machine_kexec.c
@@ -52,7 +52,7 @@ machine_kexec(struct kimage *image)
reboot_code_buffer =
(unsigned long)page_address(image->control_code_page);
- kexec_start_address = image->start;
+ kexec_start_address = (unsigned long) phys_to_virt(image->start);
kexec_indirection_page =
(unsigned long) phys_to_virt(image->head & PAGE_MASK);

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@ -0,0 +1,160 @@
MIPS: allow disabling the kernel FPU emulator
This patch allows turning off the in-kernel Algorithmics
FPU emulator support, which allows one to save a couple of
precious blocks on an embedded system.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
--
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -937,6 +937,17 @@ config I8259
config MIPS_BONITO64
bool
+config MIPS_FPU_EMU
+ bool "Enable FPU emulation"
+ default y
+ help
+ This option allows building a kernel with or without the Algorithmics
+ FPU emulator enabled. Turning off this option results in a kernel which
+ does not catch floating operations exceptions. Make sure that your toolchain
+ is configured to enable software floating point emulation in that case.
+
+ If unsure say Y here.
+
config MIPS_MSC
bool
--- a/arch/mips/math-emu/Makefile
+++ b/arch/mips/math-emu/Makefile
@@ -2,11 +2,13 @@
# Makefile for the Linux/MIPS kernel FPU emulation.
#
-obj-y := cp1emu.o ieee754m.o ieee754d.o ieee754dp.o ieee754sp.o ieee754.o \
+obj-y := kernel_linkage.o dsemul.o cp1emu.o
+
+obj-$(CONFIG_MIPS_FPU_EMU) += ieee754m.o ieee754d.o ieee754dp.o ieee754sp.o ieee754.o \
ieee754xcpt.o dp_frexp.o dp_modf.o dp_div.o dp_mul.o dp_sub.o \
dp_add.o dp_fsp.o dp_cmp.o dp_logb.o dp_scalb.o dp_simple.o \
dp_tint.o dp_fint.o dp_tlong.o dp_flong.o sp_frexp.o sp_modf.o \
sp_div.o sp_mul.o sp_sub.o sp_add.o sp_fdp.o sp_cmp.o sp_logb.o \
sp_scalb.o sp_simple.o sp_tint.o sp_fint.o sp_tlong.o sp_flong.o \
- dp_sqrt.o sp_sqrt.o kernel_linkage.o dsemul.o
+ dp_sqrt.o sp_sqrt.o
--- a/arch/mips/math-emu/cp1emu.c
+++ b/arch/mips/math-emu/cp1emu.c
@@ -58,7 +58,11 @@
#define __mips 4
/* Function which emulates a floating point instruction. */
+#ifdef CONFIG_DEBUG_FS
+DEFINE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats);
+#endif
+#ifdef CONFIG_MIPS_FPU_EMU
static int fpu_emu(struct pt_regs *, struct mips_fpu_struct *,
mips_instruction);
@@ -69,10 +73,6 @@ static int fpux_emu(struct pt_regs *,
/* Further private data for which no space exists in mips_fpu_struct */
-#ifdef CONFIG_DEBUG_FS
-DEFINE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats);
-#endif
-
/* Control registers */
#define FPCREG_RID 0 /* $0 = revision id */
@@ -1360,7 +1360,6 @@ int fpu_emulator_cop1Handler(struct pt_r
return sig;
}
-
#ifdef CONFIG_DEBUG_FS
static int fpuemu_stat_get(void *data, u64 *val)
@@ -1409,4 +1408,11 @@ static int __init debugfs_fpuemu(void)
return 0;
}
__initcall(debugfs_fpuemu);
-#endif
+#endif /* CONFIG_DEBUGFS */
+#else
+int fpu_emulator_cop1Handler(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
+ int has_fpu)
+{
+ return 0;
+}
+#endif /* CONFIG_MIPS_FPU_EMU */
--- a/arch/mips/math-emu/dsemul.c
+++ b/arch/mips/math-emu/dsemul.c
@@ -109,6 +109,7 @@ int mips_dsemul(struct pt_regs *regs, mi
return SIGILL; /* force out of emulation loop */
}
+#ifdef CONFIG_MIPS_FPU_EMU
int do_dsemulret(struct pt_regs *xcp)
{
struct emuframe __user *fr;
@@ -165,3 +166,9 @@ int do_dsemulret(struct pt_regs *xcp)
return 1;
}
+#else
+int do_dsemulret(struct pt_regs *xcp)
+{
+ return 0;
+}
+#endif /* CONFIG_MIPS_FPU_EMU */
--- a/arch/mips/math-emu/kernel_linkage.c
+++ b/arch/mips/math-emu/kernel_linkage.c
@@ -29,6 +29,7 @@
#define SIGNALLING_NAN 0x7ff800007ff80000LL
+#ifdef CONFIG_MIPS_FPU_EMU
void fpu_emulator_init_fpu(void)
{
static int first = 1;
@@ -112,4 +113,36 @@ int fpu_emulator_restore_context32(struc
return err;
}
-#endif
+#endif /* CONFIG_64BIT */
+#else
+
+void fpu_emulator_init_fpu(void)
+{
+ printk(KERN_INFO "FPU emulator disabled, make sure your toolchain"
+ "was compiled with software floating point support (soft-float)\n");
+ return;
+}
+
+int fpu_emulator_save_context(struct sigcontext __user *sc)
+{
+ return 0;
+}
+
+int fpu_emulator_restore_context(struct sigcontext __user *sc)
+{
+ return 0;
+}
+
+int fpu_emulator_save_context32(struct sigcontext32 __user *sc)
+{
+ return 0;
+}
+
+int fpu_emulator_restore_context32(struct sigcontext32 __user *sc)
+{
+ return 0;
+}
+
+#ifdef CONFIG_64BIT
+#endif /* CONFIG_64BIT */
+#endif /* CONFIG_MIPS_FPU_EMU */

View File

@ -0,0 +1,371 @@
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -90,8 +90,8 @@ all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlin
cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
cflags-y += -msoft-float
LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
-KBUILD_AFLAGS_MODULE += -mlong-calls
-KBUILD_CFLAGS_MODULE += -mlong-calls
+KBUILD_AFLAGS_MODULE += -mno-long-calls
+KBUILD_CFLAGS_MODULE += -mno-long-calls
cflags-y += -ffreestanding
--- a/arch/mips/include/asm/module.h
+++ b/arch/mips/include/asm/module.h
@@ -9,6 +9,11 @@ struct mod_arch_specific {
struct list_head dbe_list;
const struct exception_table_entry *dbe_start;
const struct exception_table_entry *dbe_end;
+
+ void *phys_plt_tbl;
+ void *virt_plt_tbl;
+ unsigned int phys_plt_offset;
+ unsigned int virt_plt_offset;
};
typedef uint8_t Elf64_Byte; /* Type for a 8-bit quantity. */
--- a/arch/mips/kernel/module.c
+++ b/arch/mips/kernel/module.c
@@ -45,14 +45,219 @@ static struct mips_hi16 *mips_hi16_list;
static LIST_HEAD(dbe_list);
static DEFINE_SPINLOCK(dbe_lock);
-#ifdef MODULE_START
+/*
+ * Get the potential max trampolines size required of the init and
+ * non-init sections. Only used if we cannot find enough contiguous
+ * physically mapped memory to put the module into.
+ */
+static unsigned int
+get_plt_size(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs,
+ const char *secstrings, unsigned int symindex, bool is_init)
+{
+ unsigned long ret = 0;
+ unsigned int i, j;
+ Elf_Sym *syms;
+
+ /* Everything marked ALLOC (this includes the exported symbols) */
+ for (i = 1; i < hdr->e_shnum; ++i) {
+ unsigned int info = sechdrs[i].sh_info;
+
+ if (sechdrs[i].sh_type != SHT_REL
+ && sechdrs[i].sh_type != SHT_RELA)
+ continue;
+
+ /* Not a valid relocation section? */
+ if (info >= hdr->e_shnum)
+ continue;
+
+ /* Don't bother with non-allocated sections */
+ if (!(sechdrs[info].sh_flags & SHF_ALLOC))
+ continue;
+
+ /* If it's called *.init*, and we're not init, we're
+ not interested */
+ if ((strstr(secstrings + sechdrs[i].sh_name, ".init") != 0)
+ != is_init)
+ continue;
+
+ syms = (Elf_Sym *) sechdrs[symindex].sh_addr;
+ if (sechdrs[i].sh_type == SHT_REL) {
+ Elf_Mips_Rel *rel = (void *) sechdrs[i].sh_addr;
+ unsigned int size = sechdrs[i].sh_size / sizeof(*rel);
+
+ for (j = 0; j < size; ++j) {
+ Elf_Sym *sym;
+
+ if (ELF_MIPS_R_TYPE(rel[j]) != R_MIPS_26)
+ continue;
+
+ sym = syms + ELF_MIPS_R_SYM(rel[j]);
+ if (!is_init && sym->st_shndx != SHN_UNDEF)
+ continue;
+
+ ret += 4 * sizeof(int);
+ }
+ } else {
+ Elf_Mips_Rela *rela = (void *) sechdrs[i].sh_addr;
+ unsigned int size = sechdrs[i].sh_size / sizeof(*rela);
+
+ for (j = 0; j < size; ++j) {
+ Elf_Sym *sym;
+
+ if (ELF_MIPS_R_TYPE(rela[j]) != R_MIPS_26)
+ continue;
+
+ sym = syms + ELF_MIPS_R_SYM(rela[j]);
+ if (!is_init && sym->st_shndx != SHN_UNDEF)
+ continue;
+
+ ret += 4 * sizeof(int);
+ }
+ }
+ }
+
+ return ret;
+}
+
+#ifndef MODULE_START
+static void *alloc_phys(unsigned long size)
+{
+ unsigned order;
+ struct page *page;
+ struct page *p;
+
+ size = PAGE_ALIGN(size);
+ order = get_order(size);
+
+ page = alloc_pages(GFP_KERNEL | __GFP_NORETRY | __GFP_NOWARN |
+ __GFP_THISNODE, order);
+ if (!page)
+ return NULL;
+
+ split_page(page, order);
+
+ for (p = page + (size >> PAGE_SHIFT); p < page + (1 << order); ++p)
+ __free_page(p);
+
+ return page_address(page);
+}
+#endif
+
+static void free_phys(void *ptr, unsigned long size)
+{
+ struct page *page;
+ struct page *end;
+
+ page = virt_to_page(ptr);
+ end = page + (PAGE_ALIGN(size) >> PAGE_SHIFT);
+
+ for (; page < end; ++page)
+ __free_page(page);
+}
+
+
void *module_alloc(unsigned long size)
{
+#ifdef MODULE_START
return __vmalloc_node_range(size, 1, MODULE_START, MODULE_END,
GFP_KERNEL, PAGE_KERNEL, -1,
__builtin_return_address(0));
+#else
+ void *ptr;
+
+ if (size == 0)
+ return NULL;
+
+ ptr = alloc_phys(size);
+
+ /* If we failed to allocate physically contiguous memory,
+ * fall back to regular vmalloc. The module loader code will
+ * create jump tables to handle long jumps */
+ if (!ptr)
+ return vmalloc(size);
+
+ return ptr;
+#endif
}
+
+static inline bool is_phys_addr(void *ptr)
+{
+#ifdef CONFIG_64BIT
+ return (KSEGX((unsigned long)ptr) == CKSEG0);
+#else
+ return (KSEGX(ptr) == KSEG0);
#endif
+}
+
+/* Free memory returned from module_alloc */
+void module_free(struct module *mod, void *module_region)
+{
+ if (is_phys_addr(module_region)) {
+ if (mod->module_init == module_region)
+ free_phys(module_region, mod->init_size);
+ else if (mod->module_core == module_region)
+ free_phys(module_region, mod->core_size);
+ else
+ BUG();
+ } else {
+ vfree(module_region);
+ }
+}
+
+static void *__module_alloc(int size, bool phys)
+{
+ void *ptr;
+
+ if (phys)
+ ptr = kmalloc(size, GFP_KERNEL);
+ else
+ ptr = vmalloc(size);
+ return ptr;
+}
+
+static void __module_free(void *ptr)
+{
+ if (is_phys_addr(ptr))
+ kfree(ptr);
+ else
+ vfree(ptr);
+}
+
+int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
+ char *secstrings, struct module *mod)
+{
+ unsigned int symindex = 0;
+ unsigned int core_size, init_size;
+ int i;
+
+ for (i = 1; i < hdr->e_shnum; i++)
+ if (sechdrs[i].sh_type == SHT_SYMTAB)
+ symindex = i;
+
+ core_size = get_plt_size(hdr, sechdrs, secstrings, symindex, false);
+ init_size = get_plt_size(hdr, sechdrs, secstrings, symindex, true);
+
+ mod->arch.phys_plt_offset = 0;
+ mod->arch.virt_plt_offset = 0;
+ mod->arch.phys_plt_tbl = NULL;
+ mod->arch.virt_plt_tbl = NULL;
+
+ if ((core_size + init_size) == 0)
+ return 0;
+
+ mod->arch.phys_plt_tbl = __module_alloc(core_size + init_size, 1);
+ if (!mod->arch.phys_plt_tbl)
+ return -ENOMEM;
+
+ mod->arch.virt_plt_tbl = __module_alloc(core_size + init_size, 0);
+ if (!mod->arch.virt_plt_tbl) {
+ __module_free(mod->arch.phys_plt_tbl);
+ mod->arch.phys_plt_tbl = NULL;
+ return -ENOMEM;
+ }
+
+ return 0;
+}
static int apply_r_mips_none(struct module *me, u32 *location, Elf_Addr v)
{
@@ -73,28 +278,36 @@ static int apply_r_mips_32_rela(struct m
return 0;
}
-static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v)
+static Elf_Addr add_plt_entry_to(unsigned *plt_offset,
+ void *start, Elf_Addr v)
{
- if (v % 4) {
- pr_err("module %s: dangerous R_MIPS_26 REL relocation\n",
- me->name);
- return -ENOEXEC;
- }
+ unsigned *tramp = start + *plt_offset;
+ *plt_offset += 4 * sizeof(int);
- if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
- printk(KERN_ERR
- "module %s: relocation overflow\n",
- me->name);
- return -ENOEXEC;
- }
+ /* adjust carry for addiu */
+ if (v & 0x00008000)
+ v += 0x10000;
- *location = (*location & ~0x03ffffff) |
- ((*location + (v >> 2)) & 0x03ffffff);
+ tramp[0] = 0x3c190000 | (v >> 16); /* lui t9, hi16 */
+ tramp[1] = 0x27390000 | (v & 0xffff); /* addiu t9, t9, lo16 */
+ tramp[2] = 0x03200008; /* jr t9 */
+ tramp[3] = 0x00000000; /* nop */
- return 0;
+ return (Elf_Addr) tramp;
}
-static int apply_r_mips_26_rela(struct module *me, u32 *location, Elf_Addr v)
+static Elf_Addr add_plt_entry(struct module *me, void *location, Elf_Addr v)
+{
+ if (is_phys_addr(location))
+ return add_plt_entry_to(&me->arch.phys_plt_offset,
+ me->arch.phys_plt_tbl, v);
+ else
+ return add_plt_entry_to(&me->arch.virt_plt_offset,
+ me->arch.virt_plt_tbl, v);
+
+}
+
+static int set_r_mips_26(struct module *me, u32 *location, u32 ofs, Elf_Addr v)
{
if (v % 4) {
pr_err("module %s: dangerous R_MIPS_26 RELArelocation\n",
@@ -103,17 +316,31 @@ static int apply_r_mips_26_rela(struct m
}
if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
- printk(KERN_ERR
+ v = add_plt_entry(me, location, v + (ofs << 2));
+ if (!v) {
+ printk(KERN_ERR
"module %s: relocation overflow\n",
me->name);
- return -ENOEXEC;
+ return -ENOEXEC;
+ }
+ ofs = 0;
}
- *location = (*location & ~0x03ffffff) | ((v >> 2) & 0x03ffffff);
+ *location = (*location & ~0x03ffffff) | ((ofs + (v >> 2)) & 0x03ffffff);
return 0;
}
+static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v)
+{
+ return set_r_mips_26(me, location, *location & 0x03ffffff, v);
+}
+
+static int apply_r_mips_26_rela(struct module *me, u32 *location, Elf_Addr v)
+{
+ return set_r_mips_26(me, location, 0, v);
+}
+
static int apply_r_mips_hi16_rel(struct module *me, u32 *location, Elf_Addr v)
{
struct mips_hi16 *n;
@@ -381,11 +608,32 @@ int module_finalize(const Elf_Ehdr *hdr,
list_add(&me->arch.dbe_list, &dbe_list);
spin_unlock_irq(&dbe_lock);
}
+
+ /* Get rid of the fixup trampoline if we're running the module
+ * from physically mapped address space */
+ if (me->arch.phys_plt_offset == 0) {
+ __module_free(me->arch.phys_plt_tbl);
+ me->arch.phys_plt_tbl = NULL;
+ }
+ if (me->arch.virt_plt_offset == 0) {
+ __module_free(me->arch.virt_plt_tbl);
+ me->arch.virt_plt_tbl = NULL;
+ }
+
return 0;
}
void module_arch_cleanup(struct module *mod)
{
+ if (mod->arch.phys_plt_tbl) {
+ __module_free(mod->arch.phys_plt_tbl);
+ mod->arch.phys_plt_tbl = NULL;
+ }
+ if (mod->arch.virt_plt_tbl) {
+ __module_free(mod->arch.virt_plt_tbl);
+ mod->arch.virt_plt_tbl = NULL;
+ }
+
spin_lock_irq(&dbe_lock);
list_del(&mod->arch.dbe_list);
spin_unlock_irq(&dbe_lock);

View File

@ -0,0 +1,83 @@
--- a/arch/mips/include/asm/string.h
+++ b/arch/mips/include/asm/string.h
@@ -133,11 +133,44 @@ strncmp(__const__ char *__cs, __const__
#define __HAVE_ARCH_MEMSET
extern void *memset(void *__s, int __c, size_t __count);
+#define memset(__s, __c, len) \
+({ \
+ size_t __len = (len); \
+ void *__ret; \
+ if (__builtin_constant_p(len) && __len >= 64) \
+ __ret = memset((__s), (__c), __len); \
+ else \
+ __ret = __builtin_memset((__s), (__c), __len); \
+ __ret; \
+})
#define __HAVE_ARCH_MEMCPY
extern void *memcpy(void *__to, __const__ void *__from, size_t __n);
+#define memcpy(dst, src, len) \
+({ \
+ size_t __len = (len); \
+ void *__ret; \
+ if (__builtin_constant_p(len) && __len >= 64) \
+ __ret = memcpy((dst), (src), __len); \
+ else \
+ __ret = __builtin_memcpy((dst), (src), __len); \
+ __ret; \
+})
#define __HAVE_ARCH_MEMMOVE
extern void *memmove(void *__dest, __const__ void *__src, size_t __n);
+#define memmove(dst, src, len) \
+({ \
+ size_t __len = (len); \
+ void *__ret; \
+ if (__builtin_constant_p(len) && __len >= 64) \
+ __ret = memmove((dst), (src), __len); \
+ else \
+ __ret = __builtin_memmove((dst), (src), __len); \
+ __ret; \
+})
+
+#define __HAVE_ARCH_MEMCMP
+#define memcmp(src1, src2, len) __builtin_memcmp((src1), (src2), (len))
#endif /* _ASM_STRING_H */
--- a/arch/mips/lib/Makefile
+++ b/arch/mips/lib/Makefile
@@ -3,7 +3,7 @@
#
lib-y += csum_partial.o delay.o memcpy.o memcpy-inatomic.o memset.o \
- strlen_user.o strncpy_user.o strnlen_user.o uncached.o
+ strlen_user.o strncpy_user.o strnlen_user.o uncached.o memcmp.o
obj-y += iomap.o
obj-$(CONFIG_PCI) += iomap-pci.o
--- /dev/null
+++ b/arch/mips/lib/memcmp.c
@@ -0,0 +1,22 @@
+/*
+ * copied from linux/lib/string.c
+ *
+ * Copyright (C) 1991, 1992 Linus Torvalds
+ */
+
+#include <linux/module.h>
+#include <linux/string.h>
+
+#undef memcmp
+int memcmp(const void *cs, const void *ct, size_t count)
+{
+ const unsigned char *su1, *su2;
+ int res = 0;
+
+ for (su1 = cs, su2 = ct; 0 < count; ++su1, ++su2, count--)
+ if ((res = *su1 - *su2) != 0)
+ break;
+ return res;
+}
+EXPORT_SYMBOL(memcmp);
+

View File

@ -0,0 +1,35 @@
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -298,6 +298,11 @@ static void reset_counters(void *arg)
}
}
+static irqreturn_t mipsxx_perfcount_int(int irq, void *dev_id)
+{
+ return mipsxx_perfcount_handler();
+}
+
static int __init mipsxx_init(void)
{
int counters;
@@ -374,6 +379,10 @@ static int __init mipsxx_init(void)
save_perf_irq = perf_irq;
perf_irq = mipsxx_perfcount_handler;
+ if (cp0_perfcount_irq >= 0)
+ return request_irq(cp0_perfcount_irq, mipsxx_perfcount_int,
+ IRQF_SHARED, "Perfcounter", save_perf_irq);
+
return 0;
}
@@ -381,6 +390,9 @@ static void mipsxx_exit(void)
{
int counters = op_model_mipsxx_ops.num_counters;
+ if (cp0_perfcount_irq >= 0)
+ free_irq(cp0_perfcount_irq, save_perf_irq);
+
counters = counters_per_cpu_to_total(counters);
on_each_cpu(reset_counters, (void *)(long)counters, 1);

View File

@ -0,0 +1,13 @@
--- a/arch/arm/kernel/module.c
+++ b/arch/arm/kernel/module.c
@@ -81,6 +81,10 @@ apply_relocate(Elf32_Shdr *sechdrs, cons
return -ENOEXEC;
}
+ if ((IS_ERR_VALUE(sym->st_value) || !sym->st_value) &&
+ ELF_ST_BIND(sym->st_info) == STB_WEAK)
+ continue;
+
loc = dstsec->sh_addr + rel->r_offset;
switch (ELF32_R_TYPE(rel->r_info)) {

View File

@ -0,0 +1,31 @@
Upstream doesn't optimize the kernel and bootwrappers for ppc44x because
they still want to support gcc 3.3 -- well, we don't.
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -130,7 +130,8 @@ ifeq ($(CONFIG_FUNCTION_TRACER),y)
KBUILD_CFLAGS += -mno-sched-epilog
endif
-cpu-as-$(CONFIG_4xx) += -Wa,-m405
+cpu-as-$(CONFIG_40x) += -Wa,-m405
+cpu-as-$(CONFIG_44x) += -Wa,-m440
cpu-as-$(CONFIG_6xx) += -Wa,-maltivec
cpu-as-$(CONFIG_POWER4) += -Wa,-maltivec
cpu-as-$(CONFIG_E500) += -Wa,-me500
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -38,10 +38,10 @@ BOOTCFLAGS += -I$(obj) -I$(srctree)/$(ob
DTC_FLAGS ?= -p 1024
$(obj)/4xx.o: BOOTCFLAGS += -mcpu=405
-$(obj)/ebony.o: BOOTCFLAGS += -mcpu=405
+$(obj)/ebony.o: BOOTCFLAGS += -mcpu=440
$(obj)/cuboot-hotfoot.o: BOOTCFLAGS += -mcpu=405
-$(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=405
-$(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=405
+$(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=440
+$(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=440
$(obj)/cuboot-acadia.o: BOOTCFLAGS += -mcpu=405
$(obj)/treeboot-walnut.o: BOOTCFLAGS += -mcpu=405
$(obj)/treeboot-iss4xx.o: BOOTCFLAGS += -mcpu=405

View File

@ -0,0 +1,56 @@
--- a/Makefile
+++ b/Makefile
@@ -375,6 +375,7 @@ KBUILD_AFLAGS := -D__ASSEMBLY__
KBUILD_AFLAGS_MODULE := -DMODULE
KBUILD_CFLAGS_MODULE := -DMODULE
KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds
+KBUILD_LDFLAGS_MODULE_PREREQ :=
# Read KERNELRELEASE from include/config/kernel.release (if it exists)
KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
@@ -384,7 +385,7 @@ export VERSION PATCHLEVEL SUBLEVEL KERNE
export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
export CPP AR NM STRIP OBJCOPY OBJDUMP
export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE
-export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
+export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE KBUILD_LDFLAGS_MODULE_PREREQ CHECK CHECKFLAGS
export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -94,7 +94,7 @@ else
endif
endif
-KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
+KBUILD_LDFLAGS_MODULE_PREREQ += arch/powerpc/lib/crtsavres.o
ifeq ($(CONFIG_TUNE_CELL),y)
KBUILD_CFLAGS += $(call cc-option,-mtune=cell)
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -110,7 +110,14 @@ quiet_cmd_cc_o_c = CC $@
cmd_cc_o_c = $(CC) $(c_flags) $(KBUILD_CFLAGS_MODULE) $(CFLAGS_MODULE) \
-c -o $@ $<
-$(modules:.ko=.mod.o): %.mod.o: %.mod.c FORCE
+quiet_cmd_as_o_S = AS $(quiet_modtag) $@
+cmd_as_o_S = $(CC) $(a_flags) $(AFLAGS_MODULE) -c -o $@ $<
+
+$(KBUILD_LDFLAGS_MODULE_PREREQ): %.o: %.S FORCE
+ $(Q)mkdir -p $(dir $@)
+ $(call if_changed_dep,as_o_S)
+
+$(modules:.ko=.mod.o): %.mod.o: %.mod.c $(KBUILD_LDFLAGS_MODULE_PREREQ) FORCE
$(call if_changed_dep,cc_o_c)
targets += $(modules:.ko=.mod.o)
@@ -119,6 +126,7 @@ targets += $(modules:.ko=.mod.o)
quiet_cmd_ld_ko_o = LD [M] $@
cmd_ld_ko_o = $(LD) -r $(LDFLAGS) \
$(KBUILD_LDFLAGS_MODULE) $(LDFLAGS_MODULE) \
+ $(KBUILD_LDFLAGS_MODULE_PREREQ) \
-o $@ $(filter-out FORCE,$^)
$(modules): %.ko :%.o %.mod.o FORCE

View File

@ -0,0 +1,327 @@
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -33,6 +33,14 @@ config MTD_TESTS
should normally be compiled as kernel modules. The modules perform
various checks and verifications when loaded.
+config MTD_ROOTFS_ROOT_DEV
+ bool "Automatically set 'rootfs' partition to be root filesystem"
+ default y
+
+config MTD_ROOTFS_SPLIT
+ bool "Automatically split 'rootfs' partition for squashfs"
+ default y
+
config MTD_REDBOOT_PARTS
tristate "RedBoot partition table parsing"
---help---
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -29,6 +29,8 @@
#include <linux/kmod.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
+#include <linux/root_dev.h>
+#include <linux/magic.h>
#include <linux/err.h>
#include "mtdcore.h"
@@ -50,7 +52,7 @@ struct mtd_part {
* the pointer to that structure with this macro.
*/
#define PART(x) ((struct mtd_part *)(x))
-
+#define IS_PART(mtd) (mtd->read == part_read)
/*
* MTD methods which simply translate the effective address and pass through
@@ -637,6 +639,155 @@ int mtd_del_partition(struct mtd_info *m
}
EXPORT_SYMBOL_GPL(mtd_del_partition);
+#ifdef CONFIG_MTD_ROOTFS_SPLIT
+#define ROOTFS_SPLIT_NAME "rootfs_data"
+#define ROOTFS_REMOVED_NAME "<removed>"
+
+struct squashfs_super_block {
+ __le32 s_magic;
+ __le32 pad0[9];
+ __le64 bytes_used;
+};
+
+
+static int split_squashfs(struct mtd_info *master, int offset, int *split_offset)
+{
+ struct squashfs_super_block sb;
+ int len, ret;
+
+ ret = master->read(master, offset, sizeof(sb), &len, (void *) &sb);
+ if (ret || (len != sizeof(sb))) {
+ printk(KERN_ALERT "split_squashfs: error occured while reading "
+ "from \"%s\"\n", master->name);
+ return -EINVAL;
+ }
+
+ if (SQUASHFS_MAGIC != le32_to_cpu(sb.s_magic) ) {
+ printk(KERN_ALERT "split_squashfs: no squashfs found in \"%s\"\n",
+ master->name);
+ *split_offset = 0;
+ return 0;
+ }
+
+ if (le64_to_cpu((sb.bytes_used)) <= 0) {
+ printk(KERN_ALERT "split_squashfs: squashfs is empty in \"%s\"\n",
+ master->name);
+ *split_offset = 0;
+ return 0;
+ }
+
+ len = (u32) le64_to_cpu(sb.bytes_used);
+ len += (offset & 0x000fffff);
+ len += (master->erasesize - 1);
+ len &= ~(master->erasesize - 1);
+ len -= (offset & 0x000fffff);
+ *split_offset = offset + len;
+
+ return 0;
+}
+
+static int split_rootfs_data(struct mtd_info *master, struct mtd_info *rpart, const struct mtd_partition *part)
+{
+ struct mtd_partition *dpart;
+ struct mtd_part *slave = NULL;
+ struct mtd_part *spart;
+ int ret, split_offset = 0;
+
+ spart = PART(rpart);
+ ret = split_squashfs(master, spart->offset, &split_offset);
+ if (ret)
+ return ret;
+
+ if (split_offset <= 0)
+ return 0;
+
+ dpart = kmalloc(sizeof(*part)+sizeof(ROOTFS_SPLIT_NAME)+1, GFP_KERNEL);
+ if (dpart == NULL) {
+ printk(KERN_INFO "split_squashfs: no memory for partition \"%s\"\n",
+ ROOTFS_SPLIT_NAME);
+ return -ENOMEM;
+ }
+
+ memcpy(dpart, part, sizeof(*part));
+ dpart->name = (unsigned char *)&dpart[1];
+ strcpy(dpart->name, ROOTFS_SPLIT_NAME);
+
+ dpart->size = rpart->size - (split_offset - spart->offset);
+ dpart->offset = split_offset;
+
+ if (dpart == NULL)
+ return 1;
+
+ printk(KERN_INFO "mtd: partition \"%s\" created automatically, ofs=%llX, len=%llX \n",
+ ROOTFS_SPLIT_NAME, dpart->offset, dpart->size);
+
+ slave = allocate_partition(master, dpart, 0, split_offset);
+ if (IS_ERR(slave))
+ return PTR_ERR(slave);
+ mutex_lock(&mtd_partitions_mutex);
+ list_add(&slave->list, &mtd_partitions);
+ mutex_unlock(&mtd_partitions_mutex);
+
+ add_mtd_device(&slave->mtd);
+
+ rpart->split = &slave->mtd;
+
+ return 0;
+}
+
+static int refresh_rootfs_split(struct mtd_info *mtd)
+{
+ struct mtd_partition tpart;
+ struct mtd_part *part;
+ char *name;
+ //int index = 0;
+ int offset, size;
+ int ret;
+
+ part = PART(mtd);
+
+ /* check for the new squashfs offset first */
+ ret = split_squashfs(part->master, part->offset, &offset);
+ if (ret)
+ return ret;
+
+ if ((offset > 0) && !mtd->split) {
+ printk(KERN_INFO "%s: creating new split partition for \"%s\"\n", __func__, mtd->name);
+ /* if we don't have a rootfs split partition, create a new one */
+ tpart.name = (char *) mtd->name;
+ tpart.size = mtd->size;
+ tpart.offset = part->offset;
+
+ return split_rootfs_data(part->master, &part->mtd, &tpart);
+ } else if ((offset > 0) && mtd->split) {
+ /* update the offsets of the existing partition */
+ size = mtd->size + part->offset - offset;
+
+ part = PART(mtd->split);
+ part->offset = offset;
+ part->mtd.size = size;
+ printk(KERN_INFO "%s: %s partition \"" ROOTFS_SPLIT_NAME "\", offset: 0x%06x (0x%06x)\n",
+ __func__, (!strcmp(part->mtd.name, ROOTFS_SPLIT_NAME) ? "updating" : "creating"),
+ (u32) part->offset, (u32) part->mtd.size);
+ name = kmalloc(sizeof(ROOTFS_SPLIT_NAME) + 1, GFP_KERNEL);
+ strcpy(name, ROOTFS_SPLIT_NAME);
+ part->mtd.name = name;
+ } else if ((offset <= 0) && mtd->split) {
+ printk(KERN_INFO "%s: removing partition \"%s\"\n", __func__, mtd->split->name);
+
+ /* mark existing partition as removed */
+ part = PART(mtd->split);
+ name = kmalloc(sizeof(ROOTFS_SPLIT_NAME) + 1, GFP_KERNEL);
+ strcpy(name, ROOTFS_REMOVED_NAME);
+ part->mtd.name = name;
+ part->offset = 0;
+ part->mtd.size = 0;
+ }
+
+ return 0;
+}
+#endif /* CONFIG_MTD_ROOTFS_SPLIT */
+
/*
* This function, given a master MTD object and a partition table, creates
* and registers slave MTD objects which are bound to the master according to
@@ -653,6 +804,9 @@ int add_mtd_partitions(struct mtd_info *
struct mtd_part *slave;
uint64_t cur_offset = 0;
int i;
+#ifdef CONFIG_MTD_ROOTFS_SPLIT
+ int ret;
+#endif
printk(KERN_NOTICE "Creating %d MTD partitions on \"%s\":\n", nbparts, master->name);
@@ -667,12 +821,53 @@ int add_mtd_partitions(struct mtd_info *
add_mtd_device(&slave->mtd);
+ if (!strcmp(parts[i].name, "rootfs")) {
+#ifdef CONFIG_MTD_ROOTFS_ROOT_DEV
+ if (ROOT_DEV == 0) {
+ printk(KERN_NOTICE "mtd: partition \"rootfs\" "
+ "set to be root filesystem\n");
+ ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, slave->mtd.index);
+ }
+#endif
+#ifdef CONFIG_MTD_ROOTFS_SPLIT
+ ret = split_rootfs_data(master, &slave->mtd, &parts[i]);
+ /* if (ret == 0)
+ * j++; */
+#endif
+ }
+
cur_offset = slave->offset + slave->mtd.size;
}
return 0;
}
+int mtd_device_refresh(struct mtd_info *mtd)
+{
+ int ret = 0;
+
+ if (IS_PART(mtd)) {
+ struct mtd_part *part;
+ struct mtd_info *master;
+
+ part = PART(mtd);
+ master = part->master;
+ if (master->refresh_device)
+ ret = master->refresh_device(master);
+ }
+
+ if (!ret && mtd->refresh_device)
+ ret = mtd->refresh_device(mtd);
+
+#ifdef CONFIG_MTD_ROOTFS_SPLIT
+ if (!ret && IS_PART(mtd) && !strcmp(mtd->name, "rootfs"))
+ refresh_rootfs_split(mtd);
+#endif
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mtd_device_refresh);
+
static DEFINE_SPINLOCK(part_parser_lock);
static LIST_HEAD(part_parsers);
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -948,6 +948,12 @@ static int mtd_ioctl(struct file *file,
break;
}
+ case MTDREFRESH:
+ {
+ ret = mtd_device_refresh(mtd);
+ break;
+ }
+
default:
ret = -ENOTTY;
}
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -125,6 +125,7 @@ struct nand_ecclayout {
struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES_LARGE];
};
+struct mtd_info;
struct mtd_info {
u_char type;
uint32_t flags;
@@ -277,6 +278,9 @@ struct mtd_info {
struct device dev;
int usecount;
+ int (*refresh_device)(struct mtd_info *mtd);
+ struct mtd_info *split;
+
/* If the driver is something smart, like UBI, it may need to maintain
* its own reference counting. The below functions are only for driver.
* The driver may register its callbacks. These callbacks are not
@@ -327,6 +331,7 @@ struct mtd_partition;
extern int mtd_device_register(struct mtd_info *master,
const struct mtd_partition *parts,
int nr_parts);
+extern int mtd_device_refresh(struct mtd_info *master);
extern int mtd_device_unregister(struct mtd_info *master);
extern struct mtd_info *get_mtd_device(struct mtd_info *mtd, int num);
extern int __get_mtd_device(struct mtd_info *mtd);
--- a/include/linux/mtd/partitions.h
+++ b/include/linux/mtd/partitions.h
@@ -34,12 +34,14 @@
* erasesize aligned (e.g. use MTDPART_OFS_NEXTBLK).
*/
+struct mtd_partition;
struct mtd_partition {
char *name; /* identifier string */
uint64_t size; /* partition size */
uint64_t offset; /* offset within the master MTD space */
uint32_t mask_flags; /* master MTD flags to mask out for this partition */
struct nand_ecclayout *ecclayout; /* out of band layout for this partition (NAND only) */
+ int (*refresh_partition)(struct mtd_info *);
};
#define MTDPART_OFS_NXTBLK (-2)
--- a/include/mtd/mtd-abi.h
+++ b/include/mtd/mtd-abi.h
@@ -127,6 +127,7 @@ struct otp_info {
#define MEMWRITEOOB64 _IOWR('M', 21, struct mtd_oob_buf64)
#define MEMREADOOB64 _IOWR('M', 22, struct mtd_oob_buf64)
#define MEMISLOCKED _IOR('M', 23, struct erase_info_user)
+#define MTDREFRESH _IO('M', 24)
/*
* Obsolete legacy interface. Keep it in order not to break userspace

View File

@ -0,0 +1,145 @@
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -35,6 +35,8 @@
#include "mtdcore.h"
+#define MTD_ERASE_PARTIAL 0x8000 /* partition only covers parts of an erase block */
+
/* Our partition linked list */
static LIST_HEAD(mtd_partitions);
static DEFINE_MUTEX(mtd_partitions_mutex);
@@ -258,13 +260,60 @@ static int part_erase(struct mtd_info *m
return -EROFS;
if (instr->addr >= mtd->size)
return -EINVAL;
+
+ instr->partial_start = false;
+ if (mtd->flags & MTD_ERASE_PARTIAL) {
+ size_t readlen = 0;
+ u64 mtd_ofs;
+
+ instr->erase_buf = kmalloc(part->master->erasesize, GFP_ATOMIC);
+ if (!instr->erase_buf)
+ return -ENOMEM;
+
+ mtd_ofs = part->offset + instr->addr;
+ instr->erase_buf_ofs = do_div(mtd_ofs, part->master->erasesize);
+
+ if (instr->erase_buf_ofs > 0) {
+ instr->addr -= instr->erase_buf_ofs;
+ ret = part->master->read(part->master,
+ instr->addr + part->offset,
+ part->master->erasesize,
+ &readlen, instr->erase_buf);
+
+ instr->partial_start = true;
+ } else {
+ mtd_ofs = part->offset + part->mtd.size;
+ instr->erase_buf_ofs = part->master->erasesize -
+ do_div(mtd_ofs, part->master->erasesize);
+
+ if (instr->erase_buf_ofs > 0) {
+ instr->len += instr->erase_buf_ofs;
+ ret = part->master->read(part->master,
+ part->offset + instr->addr +
+ instr->len - part->master->erasesize,
+ part->master->erasesize, &readlen,
+ instr->erase_buf);
+ } else {
+ ret = 0;
+ }
+ }
+ if (ret < 0) {
+ kfree(instr->erase_buf);
+ return ret;
+ }
+
+ }
+
instr->addr += part->offset;
ret = part->master->erase(part->master, instr);
if (ret) {
if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
instr->fail_addr -= part->offset;
instr->addr -= part->offset;
+ if (mtd->flags & MTD_ERASE_PARTIAL)
+ kfree(instr->erase_buf);
}
+
return ret;
}
@@ -272,7 +321,25 @@ void mtd_erase_callback(struct erase_inf
{
if (instr->mtd->erase == part_erase) {
struct mtd_part *part = PART(instr->mtd);
+ size_t wrlen = 0;
+ if (instr->mtd->flags & MTD_ERASE_PARTIAL) {
+ if (instr->partial_start) {
+ part->master->write(part->master,
+ instr->addr, instr->erase_buf_ofs,
+ &wrlen, instr->erase_buf);
+ instr->addr += instr->erase_buf_ofs;
+ } else {
+ instr->len -= instr->erase_buf_ofs;
+ part->master->write(part->master,
+ instr->addr + instr->len,
+ instr->erase_buf_ofs, &wrlen,
+ instr->erase_buf +
+ part->master->erasesize -
+ instr->erase_buf_ofs);
+ }
+ kfree(instr->erase_buf);
+ }
if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
instr->fail_addr -= part->offset;
instr->addr -= part->offset;
@@ -530,18 +597,24 @@ static struct mtd_part *allocate_partiti
if ((slave->mtd.flags & MTD_WRITEABLE) &&
mtd_mod_by_eb(slave->offset, &slave->mtd)) {
/* Doesn't start on a boundary of major erase size */
- /* FIXME: Let it be writable if it is on a boundary of
- * _minor_ erase size though */
- slave->mtd.flags &= ~MTD_WRITEABLE;
- printk(KERN_WARNING"mtd: partition \"%s\" doesn't start on an erase block boundary -- force read-only\n",
- part->name);
+ slave->mtd.flags |= MTD_ERASE_PARTIAL;
+ if (((u32) slave->mtd.size) > master->erasesize)
+ slave->mtd.flags &= ~MTD_WRITEABLE;
+ else
+ slave->mtd.erasesize = slave->mtd.size;
}
if ((slave->mtd.flags & MTD_WRITEABLE) &&
- mtd_mod_by_eb(slave->mtd.size, &slave->mtd)) {
- slave->mtd.flags &= ~MTD_WRITEABLE;
- printk(KERN_WARNING"mtd: partition \"%s\" doesn't end on an erase block -- force read-only\n",
- part->name);
+ mtd_mod_by_eb(slave->offset + slave->mtd.size, &slave->mtd)) {
+ slave->mtd.flags |= MTD_ERASE_PARTIAL;
+
+ if ((u32) slave->mtd.size > master->erasesize)
+ slave->mtd.flags &= ~MTD_WRITEABLE;
+ else
+ slave->mtd.erasesize = slave->mtd.size;
}
+ if ((slave->mtd.flags & (MTD_ERASE_PARTIAL|MTD_WRITEABLE)) == MTD_ERASE_PARTIAL)
+ printk(KERN_WARNING"mtd: partition \"%s\" must either start or end on erase block boundary or be smaller than an erase block -- forcing read-only\n",
+ part->name);
slave->mtd.ecclayout = master->ecclayout;
if (master->block_isbad) {
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -57,6 +57,10 @@ struct erase_info {
u_long priv;
u_char state;
struct erase_info *next;
+
+ u8 *erase_buf;
+ u32 erase_buf_ofs;
+ bool partial_start;
};
struct mtd_erase_region_info {

View File

@ -0,0 +1,18 @@
--- a/include/linux/mtd/partitions.h
+++ b/include/linux/mtd/partitions.h
@@ -33,6 +33,7 @@
* Note: writeable partitions require their size and offset be
* erasesize aligned (e.g. use MTDPART_OFS_NEXTBLK).
*/
+struct mtd_info;
struct mtd_partition;
struct mtd_partition {
@@ -49,7 +50,6 @@ struct mtd_partition {
#define MTDPART_SIZ_FULL (0)
-struct mtd_info;
/*
* Functions dealing with the various ways of partitioning the space

View File

@ -0,0 +1,30 @@
--- a/drivers/mtd/redboot.c
+++ b/drivers/mtd/redboot.c
@@ -267,14 +267,21 @@ static int parse_redboot_partitions(stru
#endif
names += strlen(names)+1;
-#ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
if(fl->next && fl->img->flash_base + fl->img->size + master->erasesize <= fl->next->img->flash_base) {
- i++;
- parts[i].offset = parts[i-1].size + parts[i-1].offset;
- parts[i].size = fl->next->img->flash_base - parts[i].offset;
- parts[i].name = nullname;
- }
+ if (!strcmp(parts[i].name, "rootfs")) {
+ parts[i].size = fl->next->img->flash_base;
+ parts[i].size &= ~(master->erasesize - 1);
+ parts[i].size -= parts[i].offset;
+#ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
+ nrparts--;
+ } else {
+ i++;
+ parts[i].offset = parts[i-1].size + parts[i-1].offset;
+ parts[i].size = fl->next->img->flash_base - parts[i].offset;
+ parts[i].name = nullname;
#endif
+ }
+ }
tmp_fl = fl;
fl = fl->next;
kfree(tmp_fl);

View File

@ -0,0 +1,60 @@
--- a/drivers/mtd/redboot.c
+++ b/drivers/mtd/redboot.c
@@ -29,6 +29,8 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
+#define BOARD_CONFIG_PART "boardconfig"
+
struct fis_image_desc {
unsigned char name[16]; // Null terminated name
uint32_t flash_base; // Address within FLASH of image
@@ -59,6 +61,7 @@ static int parse_redboot_partitions(stru
struct mtd_partition **pparts,
unsigned long fis_origin)
{
+ unsigned long max_offset = 0;
int nrparts = 0;
struct fis_image_desc *buf;
struct mtd_partition *parts;
@@ -227,14 +230,14 @@ static int parse_redboot_partitions(stru
}
}
#endif
- parts = kzalloc(sizeof(*parts)*nrparts + nulllen + namelen, GFP_KERNEL);
+ parts = kzalloc(sizeof(*parts) * (nrparts + 1) + nulllen + namelen + sizeof(BOARD_CONFIG_PART), GFP_KERNEL);
if (!parts) {
ret = -ENOMEM;
goto out;
}
- nullname = (char *)&parts[nrparts];
+ nullname = (char *)&parts[nrparts + 1];
#ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
if (nulllen > 0) {
strcpy(nullname, nullstring);
@@ -253,6 +256,8 @@ static int parse_redboot_partitions(stru
}
#endif
for ( ; i<nrparts; i++) {
+ if(max_offset < buf[i].flash_base + buf[i].size)
+ max_offset = buf[i].flash_base + buf[i].size;
parts[i].size = fl->img->size;
parts[i].offset = fl->img->flash_base;
parts[i].name = names;
@@ -286,6 +291,14 @@ static int parse_redboot_partitions(stru
fl = fl->next;
kfree(tmp_fl);
}
+ if(master->size - max_offset >= master->erasesize)
+ {
+ parts[nrparts].size = master->size - max_offset;
+ parts[nrparts].offset = max_offset;
+ parts[nrparts].name = names;
+ strcpy(names, BOARD_CONFIG_PART);
+ nrparts++;
+ }
ret = nrparts;
*pparts = parts;
out:

View File

@ -0,0 +1,35 @@
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -157,6 +157,22 @@ config MTD_AR7_PARTS
---help---
TI AR7 partitioning support
+config MTD_MYLOADER_PARTS
+ tristate "MyLoader partition parsing"
+ depends on ADM5120 || ATHEROS_AR231X || ATHEROS_AR71XX
+ ---help---
+ MyLoader is a bootloader which allows the user to define partitions
+ in flash devices, by putting a table in the second erase block
+ on the device, similar to a partition table. This table gives the
+ offsets and lengths of the user defined partitions.
+
+ If you need code which can detect and parse these tables, and
+ register MTD 'partitions' corresponding to each image detected,
+ enable this option.
+
+ You will still need the parsing functions to be called by the driver
+ for your particular device. It won't happen automatically.
+
comment "User Modules And Translation Layers"
config MTD_CHAR
--- a/drivers/mtd/Makefile
+++ b/drivers/mtd/Makefile
@@ -11,6 +11,7 @@ obj-$(CONFIG_MTD_REDBOOT_PARTS) += redbo
obj-$(CONFIG_MTD_CMDLINE_PARTS) += cmdlinepart.o
obj-$(CONFIG_MTD_AFS_PARTS) += afs.o
obj-$(CONFIG_MTD_AR7_PARTS) += ar7part.o
+obj-$(CONFIG_MTD_MYLOADER_PARTS) += myloader.o
# 'Users' - code which presents functionality to userspace.
obj-$(CONFIG_MTD_CHAR) += mtdchar.o

View File

@ -0,0 +1,116 @@
--- a/drivers/mtd/devices/block2mtd.c
+++ b/drivers/mtd/devices/block2mtd.c
@@ -14,6 +14,7 @@
#include <linux/list.h>
#include <linux/init.h>
#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
#include <linux/buffer_head.h>
#include <linux/mutex.h>
#include <linux/mount.h>
@@ -232,11 +233,12 @@ static void block2mtd_free_device(struct
/* FIXME: ensure that mtd->size % erase_size == 0 */
-static struct block2mtd_dev *add_device(char *devname, int erase_size)
+static struct block2mtd_dev *add_device(char *devname, int erase_size, const char *mtdname)
{
const fmode_t mode = FMODE_READ | FMODE_WRITE | FMODE_EXCL;
struct block_device *bdev;
struct block2mtd_dev *dev;
+ struct mtd_partition *part;
char *name;
if (!devname)
@@ -275,13 +277,16 @@ static struct block2mtd_dev *add_device(
/* Setup the MTD structure */
/* make the name contain the block device in */
- name = kasprintf(GFP_KERNEL, "block2mtd: %s", devname);
+ if (!mtdname)
+ mtdname = devname;
+ name = kmalloc(strlen(mtdname) + 1, GFP_KERNEL);
if (!name)
goto devinit_err;
+ strcpy(name, mtdname);
dev->mtd.name = name;
- dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK;
+ dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK & ~(erase_size - 1);
dev->mtd.erasesize = erase_size;
dev->mtd.writesize = 1;
dev->mtd.type = MTD_RAM;
@@ -294,14 +299,17 @@ static struct block2mtd_dev *add_device(
dev->mtd.priv = dev;
dev->mtd.owner = THIS_MODULE;
- if (mtd_device_register(&dev->mtd, NULL, 0)) {
+ part = kzalloc(sizeof(struct mtd_partition), GFP_KERNEL);
+ part->name = name;
+ part->offset = 0;
+ part->size = dev->mtd.size;
+ if (mtd_device_register(&dev->mtd, part, 1)) {
/* Device didn't get added, so free the entry */
goto devinit_err;
}
list_add(&dev->list, &blkmtd_device_list);
INFO("mtd%d: [%s] erase_size = %dKiB [%d]", dev->mtd.index,
- dev->mtd.name + strlen("block2mtd: "),
- dev->mtd.erasesize >> 10, dev->mtd.erasesize);
+ mtdname, dev->mtd.erasesize >> 10, dev->mtd.erasesize);
return dev;
devinit_err:
@@ -374,9 +382,9 @@ static char block2mtd_paramline[80 + 12]
static int block2mtd_setup2(const char *val)
{
- char buf[80 + 12]; /* 80 for device, 12 for erase size */
+ char buf[80 + 12 + 80]; /* 80 for device, 12 for erase size, 80 for name */
char *str = buf;
- char *token[2];
+ char *token[3];
char *name;
size_t erase_size = PAGE_SIZE;
int i, ret;
@@ -387,7 +395,7 @@ static int block2mtd_setup2(const char *
strcpy(str, val);
kill_final_newline(str);
- for (i = 0; i < 2; i++)
+ for (i = 0; i < 3; i++)
token[i] = strsep(&str, ",");
if (str)
@@ -406,8 +414,10 @@ static int block2mtd_setup2(const char *
parse_err("illegal erase size");
}
}
+ if (token[2] && (strlen(token[2]) + 1 > 80))
+ parse_err("mtd device name too long");
- add_device(name, erase_size);
+ add_device(name, erase_size, token[2]);
return 0;
}
@@ -441,7 +451,7 @@ static int block2mtd_setup(const char *v
module_param_call(block2mtd, block2mtd_setup, NULL, NULL, 0200);
-MODULE_PARM_DESC(block2mtd, "Device to use. \"block2mtd=<dev>[,<erasesize>]\"");
+MODULE_PARM_DESC(block2mtd, "Device to use. \"block2mtd=<dev>[,<erasesize>[,<name>]]\"");
static int __init block2mtd_init(void)
{
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -664,6 +664,7 @@ rescan:
kfree(state);
return 0;
}
+EXPORT_SYMBOL(rescan_partitions);
unsigned char *read_dev_sector(struct block_device *bdev, sector_t n, Sector *p)
{

View File

@ -0,0 +1,291 @@
--- a/drivers/mtd/devices/block2mtd.c
+++ b/drivers/mtd/devices/block2mtd.c
@@ -30,6 +30,8 @@ struct block2mtd_dev {
struct block_device *blkdev;
struct mtd_info mtd;
struct mutex write_mutex;
+ rwlock_t bdev_mutex;
+ char devname[0];
};
@@ -82,6 +84,12 @@ static int block2mtd_erase(struct mtd_in
size_t len = instr->len;
int err;
+ read_lock(&dev->bdev_mutex);
+ if (!dev->blkdev) {
+ err = -EINVAL;
+ goto done;
+ }
+
instr->state = MTD_ERASING;
mutex_lock(&dev->write_mutex);
err = _block2mtd_erase(dev, from, len);
@@ -93,6 +101,10 @@ static int block2mtd_erase(struct mtd_in
instr->state = MTD_ERASE_DONE;
mtd_erase_callback(instr);
+
+done:
+ read_unlock(&dev->bdev_mutex);
+
return err;
}
@@ -104,10 +116,14 @@ static int block2mtd_read(struct mtd_inf
struct page *page;
int index = from >> PAGE_SHIFT;
int offset = from & (PAGE_SIZE-1);
- int cpylen;
+ int cpylen, err = 0;
+
+ read_lock(&dev->bdev_mutex);
+ if (!dev->blkdev || (from > mtd->size)) {
+ err = -EINVAL;
+ goto done;
+ }
- if (from > mtd->size)
- return -EINVAL;
if (from + len > mtd->size)
len = mtd->size - from;
@@ -122,10 +138,14 @@ static int block2mtd_read(struct mtd_inf
len = len - cpylen;
page = page_read(dev->blkdev->bd_inode->i_mapping, index);
- if (!page)
- return -ENOMEM;
- if (IS_ERR(page))
- return PTR_ERR(page);
+ if (!page) {
+ err = -ENOMEM;
+ goto done;
+ }
+ if (IS_ERR(page)) {
+ err = PTR_ERR(page);
+ goto done;
+ }
memcpy(buf, page_address(page) + offset, cpylen);
page_cache_release(page);
@@ -136,7 +156,10 @@ static int block2mtd_read(struct mtd_inf
offset = 0;
index++;
}
- return 0;
+
+done:
+ read_unlock(&dev->bdev_mutex);
+ return err;
}
@@ -188,12 +211,22 @@ static int block2mtd_write(struct mtd_in
size_t *retlen, const u_char *buf)
{
struct block2mtd_dev *dev = mtd->priv;
- int err;
+ int err = 0;
+
+ read_lock(&dev->bdev_mutex);
+ if (!dev->blkdev) {
+ err = -EINVAL;
+ goto done;
+ }
if (!len)
- return 0;
- if (to >= mtd->size)
- return -ENOSPC;
+ goto done;
+
+ if (to >= mtd->size) {
+ err = -ENOSPC;
+ goto done;
+ }
+
if (to + len > mtd->size)
len = mtd->size - to;
@@ -202,6 +235,9 @@ static int block2mtd_write(struct mtd_in
mutex_unlock(&dev->write_mutex);
if (err > 0)
err = 0;
+
+done:
+ read_unlock(&dev->bdev_mutex);
return err;
}
@@ -210,33 +246,110 @@ static int block2mtd_write(struct mtd_in
static void block2mtd_sync(struct mtd_info *mtd)
{
struct block2mtd_dev *dev = mtd->priv;
+ read_lock(&dev->bdev_mutex);
+ if (dev->blkdev)
sync_blockdev(dev->blkdev);
+ read_unlock(&dev->bdev_mutex);
+
return;
}
+static int _open_bdev(struct block2mtd_dev *dev)
+{
+ const fmode_t mode = FMODE_READ | FMODE_WRITE | FMODE_EXCL;
+ struct block_device *bdev;
+
+ /* Get a handle on the device */
+ bdev = blkdev_get_by_path(dev->devname, mode, dev);
+#ifndef MODULE
+ if (IS_ERR(bdev)) {
+ dev_t devt;
+
+ /* We might not have rootfs mounted at this point. Try
+ to resolve the device name by other means. */
+
+ devt = name_to_dev_t(dev->devname);
+ if (devt)
+ bdev = blkdev_get_by_dev(devt, mode, dev);
+ }
+#endif
+
+ if (IS_ERR(bdev)) {
+ ERROR("error: cannot open device %s", dev->devname);
+ return 1;
+ }
+ dev->blkdev = bdev;
+
+ if (MAJOR(bdev->bd_dev) == MTD_BLOCK_MAJOR) {
+ ERROR("attempting to use an MTD device as a block device");
+ return 1;
+ }
+
+ return 0;
+}
+
+static void _close_bdev(struct block2mtd_dev *dev)
+{
+ struct block_device *bdev;
+
+ if (!dev->blkdev)
+ return;
+
+ bdev = dev->blkdev;
+ invalidate_mapping_pages(dev->blkdev->bd_inode->i_mapping, 0, -1);
+ blkdev_put(dev->blkdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL);
+ dev->blkdev = NULL;
+}
+
static void block2mtd_free_device(struct block2mtd_dev *dev)
{
if (!dev)
return;
kfree(dev->mtd.name);
-
- if (dev->blkdev) {
- invalidate_mapping_pages(dev->blkdev->bd_inode->i_mapping,
- 0, -1);
- blkdev_put(dev->blkdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL);
- }
-
+ _close_bdev(dev);
kfree(dev);
}
-/* FIXME: ensure that mtd->size % erase_size == 0 */
-static struct block2mtd_dev *add_device(char *devname, int erase_size, const char *mtdname)
+static int block2mtd_refresh(struct mtd_info *mtd)
{
- const fmode_t mode = FMODE_READ | FMODE_WRITE | FMODE_EXCL;
+ struct block2mtd_dev *dev = mtd->priv;
struct block_device *bdev;
+ dev_t devt;
+ int err = 0;
+
+ /* no other mtd function can run at this point */
+ write_lock(&dev->bdev_mutex);
+
+ /* get the device number for the whole disk */
+ devt = MKDEV(MAJOR(dev->blkdev->bd_dev), 0);
+
+ /* close the old block device */
+ _close_bdev(dev);
+
+ /* open the whole disk, issue a partition rescan, then */
+ bdev = blkdev_get_by_dev(devt, FMODE_WRITE | FMODE_READ, mtd);
+ if (!bdev || !bdev->bd_disk)
+ err = -EINVAL;
+#ifndef CONFIG_MTD_BLOCK2MTD_MODULE
+ else
+ err = rescan_partitions(bdev->bd_disk, bdev);
+#endif
+ if (bdev)
+ blkdev_put(bdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL);
+
+ /* try to open the partition block device again */
+ _open_bdev(dev);
+ write_unlock(&dev->bdev_mutex);
+
+ return err;
+}
+
+/* FIXME: ensure that mtd->size % erase_size == 0 */
+static struct block2mtd_dev *add_device(char *devname, int erase_size, char *mtdname)
+{
struct block2mtd_dev *dev;
struct mtd_partition *part;
char *name;
@@ -244,36 +357,17 @@ static struct block2mtd_dev *add_device(
if (!devname)
return NULL;
- dev = kzalloc(sizeof(struct block2mtd_dev), GFP_KERNEL);
+ dev = kzalloc(sizeof(struct block2mtd_dev) + strlen(devname) + 1, GFP_KERNEL);
if (!dev)
return NULL;
- /* Get a handle on the device */
- bdev = blkdev_get_by_path(devname, mode, dev);
-#ifndef MODULE
- if (IS_ERR(bdev)) {
-
- /* We might not have rootfs mounted at this point. Try
- to resolve the device name by other means. */
+ strcpy(dev->devname, devname);
- dev_t devt = name_to_dev_t(devname);
- if (devt)
- bdev = blkdev_get_by_dev(devt, mode, dev);
- }
-#endif
-
- if (IS_ERR(bdev)) {
- ERROR("error: cannot open device %s", devname);
+ if (_open_bdev(dev))
goto devinit_err;
- }
- dev->blkdev = bdev;
-
- if (MAJOR(bdev->bd_dev) == MTD_BLOCK_MAJOR) {
- ERROR("attempting to use an MTD device as a block device");
- goto devinit_err;
- }
mutex_init(&dev->write_mutex);
+ rwlock_init(&dev->bdev_mutex);
/* Setup the MTD structure */
/* make the name contain the block device in */
@@ -298,6 +392,7 @@ static struct block2mtd_dev *add_device(
dev->mtd.read = block2mtd_read;
dev->mtd.priv = dev;
dev->mtd.owner = THIS_MODULE;
+ dev->mtd.refresh_device = block2mtd_refresh;
part = kzalloc(sizeof(struct mtd_partition), GFP_KERNEL);
part->name = name;

View File

@ -0,0 +1,10 @@
--- a/drivers/mtd/devices/block2mtd.c
+++ b/drivers/mtd/devices/block2mtd.c
@@ -269,6 +269,7 @@ static int _open_bdev(struct block2mtd_d
/* We might not have rootfs mounted at this point. Try
to resolve the device name by other means. */
+ wait_for_device_probe();
devt = name_to_dev_t(dev->devname);
if (devt)
bdev = blkdev_get_by_dev(devt, mode, dev);

View File

@ -0,0 +1,37 @@
---
drivers/mtd/nand/plat_nand.c | 13 ++++++++++++-
include/linux/mtd/nand.h | 1 +
2 files changed, 13 insertions(+), 1 deletion(-)
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -625,6 +625,7 @@ struct platform_nand_chip {
int chip_delay;
unsigned int options;
const char **part_probe_types;
+ int (*chip_fixup)(struct mtd_info *mtd);
void (*set_parts)(uint64_t size, struct platform_nand_chip *chip);
void *priv;
};
--- a/drivers/mtd/nand/plat_nand.c
+++ b/drivers/mtd/nand/plat_nand.c
@@ -94,7 +94,18 @@ static int __devinit plat_nand_probe(str
}
/* Scan to find existence of the device */
- if (nand_scan(&data->mtd, pdata->chip.nr_chips)) {
+ if (nand_scan_ident(&data->mtd, pdata->chip.nr_chips, NULL)) {
+ res = -ENXIO;
+ goto out;
+ }
+
+ if (pdata->chip.chip_fixup) {
+ res = pdata->chip.chip_fixup(&data->mtd);
+ if (res)
+ goto out;
+ }
+
+ if (nand_scan_tail(&data->mtd)) {
err = -ENXIO;
goto out;
}

View File

@ -0,0 +1,12 @@
--- a/drivers/mtd/nand/nand_ecc.c
+++ b/drivers/mtd/nand/nand_ecc.c
@@ -507,8 +507,7 @@ int __nand_correct_data(unsigned char *b
if ((bitsperbyte[b0] + bitsperbyte[b1] + bitsperbyte[b2]) == 1)
return 1; /* error in ecc data; no action needed */
- printk(KERN_ERR "uncorrectable error : ");
- return -1;
+ return -EBADMSG;
}
EXPORT_SYMBOL(__nand_correct_data);

View File

@ -0,0 +1,39 @@
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -44,6 +44,7 @@
#define OPCODE_BE_4K 0x20 /* Erase 4KiB block */
#define OPCODE_BE_32K 0x52 /* Erase 32KiB block */
#define OPCODE_CHIP_ERASE 0xc7 /* Erase whole flash chip */
+#define OPCODE_BE_4K_PMC 0xd7 /* Erase 4KiB block on PMC chips*/
#define OPCODE_SE 0xd8 /* Sector erase (usually 64KiB) */
#define OPCODE_RDID 0x9f /* Read JEDEC ID */
@@ -630,6 +631,7 @@ struct flash_info {
u16 flags;
#define SECT_4K 0x01 /* OPCODE_BE_4K works uniformly */
#define M25P_NO_ERASE 0x02 /* No erase command needed */
+#define SECT_4K_PMC 0x04 /* OPCODE_BE_4K_PMC works uniformly */
};
#define INFO(_jedec_id, _ext_id, _sector_size, _n_sectors, _flags) \
@@ -689,6 +691,10 @@ static const struct spi_device_id m25p_i
{ "mx25l25635e", INFO(0xc22019, 0, 64 * 1024, 512, 0) },
{ "mx25l25655e", INFO(0xc22619, 0, 64 * 1024, 512, 0) },
+ /* PMC -- pm25x "blocks" are 32K, sectors are 4K */
+ { "pm25lv512", INFO(0, 0, 32 * 1024, 2, SECT_4K_PMC) },
+ { "pm25lv010", INFO(0, 0, 32 * 1024, 4, SECT_4K_PMC) },
+
/* Spansion -- single (large) sector size only, at least
* for the chips listed here (without boot sectors).
*/
@@ -920,6 +926,9 @@ static int __devinit m25p_probe(struct s
if (info->flags & SECT_4K) {
flash->erase_opcode = OPCODE_BE_4K;
flash->mtd.erasesize = 4096;
+ } else if (info->flags & SECT_4K_PMC) {
+ flash->erase_opcode = OPCODE_BE_4K_PMC;
+ flash->mtd.erasesize = 4096;
} else {
flash->erase_opcode = OPCODE_SE;
flash->mtd.erasesize = info->sector_size;

View File

@ -0,0 +1,10 @@
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -768,6 +768,7 @@ static const struct spi_device_id m25p_i
{ "w25q32", INFO(0xef4016, 0, 64 * 1024, 64, SECT_4K) },
{ "w25x64", INFO(0xef3017, 0, 64 * 1024, 128, SECT_4K) },
{ "w25q64", INFO(0xef4017, 0, 64 * 1024, 128, SECT_4K) },
+ { "w25q128", INFO(0xef4018, 0, 64 * 1024, 256, SECT_4K) },
/* Catalyst / On Semiconductor -- non-JEDEC */
{ "cat25c11", CAT25_INFO( 16, 8, 16, 1) },

View File

@ -0,0 +1,12 @@
--- a/drivers/mtd/mtdconcat.c
+++ b/drivers/mtd/mtdconcat.c
@@ -619,7 +619,8 @@ static void concat_sync(struct mtd_info
for (i = 0; i < concat->num_subdev; i++) {
struct mtd_info *subdev = concat->subdev[i];
- subdev->sync(subdev);
+ if (subdev->sync)
+ subdev->sync(subdev);
}
}

View File

@ -0,0 +1,18 @@
From: George Kashperko <george@znau.edu.ua>
Issue map read after Write Buffer Load command to ensure chip is ready
to receive data.
Signed-off-by: George Kashperko <george@znau.edu.ua>
---
drivers/mtd/chips/cfi_cmdset_0002.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -1412,6 +1412,7 @@ static int __xipram do_write_buffer(stru
/* Write Buffer Load */
map_write(map, CMD(0x25), cmd_adr);
+ (void) map_read(map, cmd_adr);
chip->state = FL_WRITING_TO_BUFFER;

View File

@ -0,0 +1,18 @@
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -35,6 +35,7 @@ source "fs/gfs2/Kconfig"
source "fs/ocfs2/Kconfig"
source "fs/btrfs/Kconfig"
source "fs/nilfs2/Kconfig"
+source "fs/yaffs2/Kconfig"
endif # BLOCK
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -124,3 +124,5 @@ obj-$(CONFIG_GFS2_FS) += gfs2/
obj-$(CONFIG_EXOFS_FS) += exofs/
obj-$(CONFIG_CEPH_FS) += ceph/
obj-$(CONFIG_PSTORE) += pstore/
+obj-$(CONFIG_YAFFS_FS) += yaffs2/
+

File diff suppressed because it is too large Load Diff

File diff suppressed because it is too large Load Diff

View File

@ -0,0 +1,17 @@
--- a/fs/yaffs2/yaffs_guts.c
+++ b/fs/yaffs2/yaffs_guts.c
@@ -1709,11 +1709,11 @@ static int yaffs_change_obj_name(yaffs_o
}
/* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */
- if (obj->my_dev->param.is_yaffs2)
+ // if (obj->my_dev->param.is_yaffs2)
unlinkOp = (new_dir == obj->my_dev->unlinked_dir);
- else
+ /* else
unlinkOp = (new_dir == obj->my_dev->unlinked_dir
- && obj->variant_type == YAFFS_OBJECT_TYPE_FILE);
+ && obj->variant_type == YAFFS_OBJECT_TYPE_FILE); */
deleteOp = (new_dir == obj->my_dev->del_dir);

View File

@ -0,0 +1,20 @@
--- a/fs/yaffs2/yaffs_vfs_glue.c
+++ b/fs/yaffs2/yaffs_vfs_glue.c
@@ -3036,7 +3036,7 @@ static struct super_block *yaffs_interna
YINIT_LIST_HEAD(&(yaffs_dev_to_lc(dev)->searchContexts));
param->remove_obj_fn = yaffs_remove_obj_callback;
- init_MUTEX(&(yaffs_dev_to_lc(dev)->grossLock));
+ sema_init(&(yaffs_dev_to_lc(dev)->grossLock), 1);
yaffs_gross_lock(dev);
@@ -3494,7 +3494,7 @@ static int __init init_yaffs_fs(void)
- init_MUTEX(&yaffs_context_lock);
+ sema_init((&yaffs_context_lock), 1);
/* Install the proc_fs entries */
my_proc_entry = create_proc_entry("yaffs",

View File

@ -0,0 +1,147 @@
--- a/fs/yaffs2/yaffs_vfs_glue.c
+++ b/fs/yaffs2/yaffs_vfs_glue.c
@@ -72,7 +72,7 @@
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/proc_fs.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <linux/pagemap.h>
#include <linux/mtd/mtd.h>
#include <linux/interrupt.h>
@@ -97,6 +97,8 @@
#include <asm/div64.h>
+static DEFINE_MUTEX(yaffs_mutex);
+
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
#include <linux/statfs.h>
@@ -1538,7 +1540,7 @@ static loff_t yaffs_dir_llseek(struct fi
{
long long retval;
- lock_kernel();
+ mutex_lock(&yaffs_mutex);
switch (origin){
case 2:
@@ -1555,7 +1557,7 @@ static loff_t yaffs_dir_llseek(struct fi
retval = offset;
}
- unlock_kernel();
+ mutex_unlock(&yaffs_mutex);
return retval;
}
@@ -3087,98 +3089,52 @@ static struct super_block *yaffs_interna
return sb;
}
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
static int yaffs_internal_read_super_mtd(struct super_block *sb, void *data,
int silent)
{
return yaffs_internal_read_super(1, sb, data, silent) ? 0 : -EINVAL;
}
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
-static int yaffs_read_super(struct file_system_type *fs,
+static struct dentry *yaffs_read_super(struct file_system_type *fs,
int flags, const char *dev_name,
- void *data, struct vfsmount *mnt)
-{
-
- return get_sb_bdev(fs, flags, dev_name, data,
- yaffs_internal_read_super_mtd, mnt);
-}
-#else
-static struct super_block *yaffs_read_super(struct file_system_type *fs,
- int flags, const char *dev_name,
- void *data)
+ void *data)
{
- return get_sb_bdev(fs, flags, dev_name, data,
+ return mount_bdev(fs, flags, dev_name, data,
yaffs_internal_read_super_mtd);
}
-#endif
static struct file_system_type yaffs_fs_type = {
.owner = THIS_MODULE,
.name = "yaffs",
- .get_sb = yaffs_read_super,
+ .mount = yaffs_read_super,
.kill_sb = kill_block_super,
.fs_flags = FS_REQUIRES_DEV,
};
-#else
-static struct super_block *yaffs_read_super(struct super_block *sb, void *data,
- int silent)
-{
- return yaffs_internal_read_super(1, sb, data, silent);
-}
-
-static DECLARE_FSTYPE(yaffs_fs_type, "yaffs", yaffs_read_super,
- FS_REQUIRES_DEV);
-#endif
-
#ifdef CONFIG_YAFFS_YAFFS2
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
static int yaffs2_internal_read_super_mtd(struct super_block *sb, void *data,
int silent)
{
return yaffs_internal_read_super(2, sb, data, silent) ? 0 : -EINVAL;
}
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
-static int yaffs2_read_super(struct file_system_type *fs,
- int flags, const char *dev_name, void *data,
- struct vfsmount *mnt)
+static struct dentry *yaffs2_read_super(struct file_system_type *fs,
+ int flags, const char *dev_name,
+ void *data)
{
- return get_sb_bdev(fs, flags, dev_name, data,
- yaffs2_internal_read_super_mtd, mnt);
+ return mount_bdev(fs, flags, dev_name, data,
+ yaffs_internal_read_super_mtd);
}
-#else
-static struct super_block *yaffs2_read_super(struct file_system_type *fs,
- int flags, const char *dev_name,
- void *data)
-{
-
- return get_sb_bdev(fs, flags, dev_name, data,
- yaffs2_internal_read_super_mtd);
-}
-#endif
static struct file_system_type yaffs2_fs_type = {
.owner = THIS_MODULE,
.name = "yaffs2",
- .get_sb = yaffs2_read_super,
+ .mount = yaffs2_read_super,
.kill_sb = kill_block_super,
.fs_flags = FS_REQUIRES_DEV,
};
-#else
-static struct super_block *yaffs2_read_super(struct super_block *sb,
- void *data, int silent)
-{
- return yaffs_internal_read_super(2, sb, data, silent);
-}
-
-static DECLARE_FSTYPE(yaffs2_fs_type, "yaffs2", yaffs2_read_super,
- FS_REQUIRES_DEV);
-#endif
#endif /* CONFIG_YAFFS_YAFFS2 */

File diff suppressed because it is too large Load Diff

View File

@ -0,0 +1,485 @@
--- a/include/linux/lzma/LzmaDec.h
+++ b/include/linux/lzma/LzmaDec.h
@@ -31,14 +31,6 @@ typedef struct _CLzmaProps
UInt32 dicSize;
} CLzmaProps;
-/* LzmaProps_Decode - decodes properties
-Returns:
- SZ_OK
- SZ_ERROR_UNSUPPORTED - Unsupported properties
-*/
-
-SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size);
-
/* ---------- LZMA Decoder state ---------- */
@@ -70,8 +62,6 @@ typedef struct
#define LzmaDec_Construct(p) { (p)->dic = 0; (p)->probs = 0; }
-void LzmaDec_Init(CLzmaDec *p);
-
/* There are two types of LZMA streams:
0) Stream with end mark. That end mark adds about 6 bytes to compressed size.
1) Stream without end mark. You must know exact uncompressed size to decompress such stream. */
@@ -108,97 +98,6 @@ typedef enum
/* ELzmaStatus is used only as output value for function call */
-
-/* ---------- Interfaces ---------- */
-
-/* There are 3 levels of interfaces:
- 1) Dictionary Interface
- 2) Buffer Interface
- 3) One Call Interface
- You can select any of these interfaces, but don't mix functions from different
- groups for same object. */
-
-
-/* There are two variants to allocate state for Dictionary Interface:
- 1) LzmaDec_Allocate / LzmaDec_Free
- 2) LzmaDec_AllocateProbs / LzmaDec_FreeProbs
- You can use variant 2, if you set dictionary buffer manually.
- For Buffer Interface you must always use variant 1.
-
-LzmaDec_Allocate* can return:
- SZ_OK
- SZ_ERROR_MEM - Memory allocation error
- SZ_ERROR_UNSUPPORTED - Unsupported properties
-*/
-
-SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc);
-void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc);
-
-SRes LzmaDec_Allocate(CLzmaDec *state, const Byte *prop, unsigned propsSize, ISzAlloc *alloc);
-void LzmaDec_Free(CLzmaDec *state, ISzAlloc *alloc);
-
-/* ---------- Dictionary Interface ---------- */
-
-/* You can use it, if you want to eliminate the overhead for data copying from
- dictionary to some other external buffer.
- You must work with CLzmaDec variables directly in this interface.
-
- STEPS:
- LzmaDec_Constr()
- LzmaDec_Allocate()
- for (each new stream)
- {
- LzmaDec_Init()
- while (it needs more decompression)
- {
- LzmaDec_DecodeToDic()
- use data from CLzmaDec::dic and update CLzmaDec::dicPos
- }
- }
- LzmaDec_Free()
-*/
-
-/* LzmaDec_DecodeToDic
-
- The decoding to internal dictionary buffer (CLzmaDec::dic).
- You must manually update CLzmaDec::dicPos, if it reaches CLzmaDec::dicBufSize !!!
-
-finishMode:
- It has meaning only if the decoding reaches output limit (dicLimit).
- LZMA_FINISH_ANY - Decode just dicLimit bytes.
- LZMA_FINISH_END - Stream must be finished after dicLimit.
-
-Returns:
- SZ_OK
- status:
- LZMA_STATUS_FINISHED_WITH_MARK
- LZMA_STATUS_NOT_FINISHED
- LZMA_STATUS_NEEDS_MORE_INPUT
- LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK
- SZ_ERROR_DATA - Data error
-*/
-
-SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit,
- const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status);
-
-
-/* ---------- Buffer Interface ---------- */
-
-/* It's zlib-like interface.
- See LzmaDec_DecodeToDic description for information about STEPS and return results,
- but you must use LzmaDec_DecodeToBuf instead of LzmaDec_DecodeToDic and you don't need
- to work with CLzmaDec variables manually.
-
-finishMode:
- It has meaning only if the decoding reaches output limit (*destLen).
- LZMA_FINISH_ANY - Decode just destLen bytes.
- LZMA_FINISH_END - Stream must be finished after (*destLen).
-*/
-
-SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen,
- const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status);
-
-
/* ---------- One Call Interface ---------- */
/* LzmaDecode
--- a/lib/lzma/LzmaDec.c
+++ b/lib/lzma/LzmaDec.c
@@ -682,7 +682,7 @@ static void LzmaDec_InitRc(CLzmaDec *p,
p->needFlush = 0;
}
-void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState)
+static void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState)
{
p->needFlush = 1;
p->remainLen = 0;
@@ -698,7 +698,7 @@ void LzmaDec_InitDicAndState(CLzmaDec *p
p->needInitState = 1;
}
-void LzmaDec_Init(CLzmaDec *p)
+static void LzmaDec_Init(CLzmaDec *p)
{
p->dicPos = 0;
LzmaDec_InitDicAndState(p, True, True);
@@ -716,7 +716,7 @@ static void LzmaDec_InitStateReal(CLzmaD
p->needInitState = 0;
}
-SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *srcLen,
+static SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *srcLen,
ELzmaFinishMode finishMode, ELzmaStatus *status)
{
SizeT inSize = *srcLen;
@@ -837,7 +837,7 @@ SRes LzmaDec_DecodeToDic(CLzmaDec *p, Si
return (p->code == 0) ? SZ_OK : SZ_ERROR_DATA;
}
-SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status)
+static __maybe_unused SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status)
{
SizeT outSize = *destLen;
SizeT inSize = *srcLen;
@@ -877,7 +877,7 @@ SRes LzmaDec_DecodeToBuf(CLzmaDec *p, By
}
}
-void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc)
+static void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc)
{
alloc->Free(alloc, p->probs);
p->probs = 0;
@@ -889,13 +889,13 @@ static void LzmaDec_FreeDict(CLzmaDec *p
p->dic = 0;
}
-void LzmaDec_Free(CLzmaDec *p, ISzAlloc *alloc)
+static void __maybe_unused LzmaDec_Free(CLzmaDec *p, ISzAlloc *alloc)
{
LzmaDec_FreeProbs(p, alloc);
LzmaDec_FreeDict(p, alloc);
}
-SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size)
+static SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size)
{
UInt32 dicSize;
Byte d;
@@ -935,7 +935,7 @@ static SRes LzmaDec_AllocateProbs2(CLzma
return SZ_OK;
}
-SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc)
+static SRes __maybe_unused LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc)
{
CLzmaProps propNew;
RINOK(LzmaProps_Decode(&propNew, props, propsSize));
@@ -944,7 +944,7 @@ SRes LzmaDec_AllocateProbs(CLzmaDec *p,
return SZ_OK;
}
-SRes LzmaDec_Allocate(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc)
+static SRes __maybe_unused LzmaDec_Allocate(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc)
{
CLzmaProps propNew;
SizeT dicBufSize;
--- a/include/linux/lzma/LzmaEnc.h
+++ b/include/linux/lzma/LzmaEnc.h
@@ -31,9 +31,6 @@ typedef struct _CLzmaEncProps
} CLzmaEncProps;
void LzmaEncProps_Init(CLzmaEncProps *p);
-void LzmaEncProps_Normalize(CLzmaEncProps *p);
-UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2);
-
/* ---------- CLzmaEncHandle Interface ---------- */
@@ -53,26 +50,9 @@ CLzmaEncHandle LzmaEnc_Create(ISzAlloc *
void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAlloc *alloc, ISzAlloc *allocBig);
SRes LzmaEnc_SetProps(CLzmaEncHandle p, const CLzmaEncProps *props);
SRes LzmaEnc_WriteProperties(CLzmaEncHandle p, Byte *properties, SizeT *size);
-SRes LzmaEnc_Encode(CLzmaEncHandle p, ISeqOutStream *outStream, ISeqInStream *inStream,
- ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
SRes LzmaEnc_MemEncode(CLzmaEncHandle p, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
-/* ---------- One Call Interface ---------- */
-
-/* LzmaEncode
-Return code:
- SZ_OK - OK
- SZ_ERROR_MEM - Memory allocation error
- SZ_ERROR_PARAM - Incorrect paramater
- SZ_ERROR_OUTPUT_EOF - output buffer overflow
- SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version)
-*/
-
-SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
- const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark,
- ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
-
#ifdef __cplusplus
}
#endif
--- a/lib/lzma/LzmaEnc.c
+++ b/lib/lzma/LzmaEnc.c
@@ -53,7 +53,7 @@ void LzmaEncProps_Init(CLzmaEncProps *p)
p->writeEndMark = 0;
}
-void LzmaEncProps_Normalize(CLzmaEncProps *p)
+static void LzmaEncProps_Normalize(CLzmaEncProps *p)
{
int level = p->level;
if (level < 0) level = 5;
@@ -76,7 +76,7 @@ void LzmaEncProps_Normalize(CLzmaEncProp
#endif
}
-UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2)
+static UInt32 __maybe_unused LzmaEncProps_GetDictSize(const CLzmaEncProps *props2)
{
CLzmaEncProps props = *props2;
LzmaEncProps_Normalize(&props);
@@ -93,7 +93,7 @@ UInt32 LzmaEncProps_GetDictSize(const CL
#define BSR2_RET(pos, res) { unsigned long i; _BitScanReverse(&i, (pos)); res = (i + i) + ((pos >> (i - 1)) & 1); }
-UInt32 GetPosSlot1(UInt32 pos)
+static UInt32 GetPosSlot1(UInt32 pos)
{
UInt32 res;
BSR2_RET(pos, res);
@@ -107,7 +107,7 @@ UInt32 GetPosSlot1(UInt32 pos)
#define kNumLogBits (9 + (int)sizeof(size_t) / 2)
#define kDicLogSizeMaxCompress ((kNumLogBits - 1) * 2 + 7)
-void LzmaEnc_FastPosInit(Byte *g_FastPos)
+static void LzmaEnc_FastPosInit(Byte *g_FastPos)
{
int c = 2, slotFast;
g_FastPos[0] = 0;
@@ -339,7 +339,7 @@ typedef struct
CSaveState saveState;
} CLzmaEnc;
-void LzmaEnc_SaveState(CLzmaEncHandle pp)
+static void __maybe_unused LzmaEnc_SaveState(CLzmaEncHandle pp)
{
CLzmaEnc *p = (CLzmaEnc *)pp;
CSaveState *dest = &p->saveState;
@@ -365,7 +365,7 @@ void LzmaEnc_SaveState(CLzmaEncHandle pp
memcpy(dest->litProbs, p->litProbs, (0x300 << p->lclp) * sizeof(CLzmaProb));
}
-void LzmaEnc_RestoreState(CLzmaEncHandle pp)
+static void __maybe_unused LzmaEnc_RestoreState(CLzmaEncHandle pp)
{
CLzmaEnc *dest = (CLzmaEnc *)pp;
const CSaveState *p = &dest->saveState;
@@ -600,7 +600,7 @@ static void LitEnc_EncodeMatched(CRangeE
while (symbol < 0x10000);
}
-void LzmaEnc_InitPriceTables(UInt32 *ProbPrices)
+static void LzmaEnc_InitPriceTables(UInt32 *ProbPrices)
{
UInt32 i;
for (i = (1 << kNumMoveReducingBits) / 2; i < kBitModelTotal; i += (1 << kNumMoveReducingBits))
@@ -1676,7 +1676,7 @@ static void FillDistancesPrices(CLzmaEnc
p->matchPriceCount = 0;
}
-void LzmaEnc_Construct(CLzmaEnc *p)
+static void LzmaEnc_Construct(CLzmaEnc *p)
{
RangeEnc_Construct(&p->rc);
MatchFinder_Construct(&p->matchFinderBase);
@@ -1709,7 +1709,7 @@ CLzmaEncHandle LzmaEnc_Create(ISzAlloc *
return p;
}
-void LzmaEnc_FreeLits(CLzmaEnc *p, ISzAlloc *alloc)
+static void LzmaEnc_FreeLits(CLzmaEnc *p, ISzAlloc *alloc)
{
alloc->Free(alloc, p->litProbs);
alloc->Free(alloc, p->saveState.litProbs);
@@ -2074,7 +2074,7 @@ SRes LzmaEnc_MemPrepare(CLzmaEncHandle p
return LzmaEnc_AllocAndInit(p, keepWindowSize, alloc, allocBig);
}
-void LzmaEnc_Finish(CLzmaEncHandle pp)
+static void LzmaEnc_Finish(CLzmaEncHandle pp)
{
#ifndef _7ZIP_ST
CLzmaEnc *p = (CLzmaEnc *)pp;
@@ -2108,7 +2108,7 @@ static size_t MyWrite(void *pp, const vo
}
-UInt32 LzmaEnc_GetNumAvailableBytes(CLzmaEncHandle pp)
+static UInt32 __maybe_unused LzmaEnc_GetNumAvailableBytes(CLzmaEncHandle pp)
{
const CLzmaEnc *p = (CLzmaEnc *)pp;
return p->matchFinder.GetNumAvailableBytes(p->matchFinderObj);
@@ -2120,7 +2120,7 @@ const Byte *LzmaEnc_GetCurBuf(CLzmaEncHa
return p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset;
}
-SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit,
+static SRes __maybe_unused LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit,
Byte *dest, size_t *destLen, UInt32 desiredPackSize, UInt32 *unpackSize)
{
CLzmaEnc *p = (CLzmaEnc *)pp;
@@ -2248,7 +2248,7 @@ SRes LzmaEnc_MemEncode(CLzmaEncHandle pp
return res;
}
-SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
+static __maybe_unused SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark,
ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig)
{
--- a/include/linux/lzma/LzFind.h
+++ b/include/linux/lzma/LzFind.h
@@ -55,11 +55,6 @@ typedef struct _CMatchFinder
#define Inline_MatchFinder_GetNumAvailableBytes(p) ((p)->streamPos - (p)->pos)
-int MatchFinder_NeedMove(CMatchFinder *p);
-Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p);
-void MatchFinder_MoveBlock(CMatchFinder *p);
-void MatchFinder_ReadIfRequired(CMatchFinder *p);
-
void MatchFinder_Construct(CMatchFinder *p);
/* Conditions:
@@ -70,12 +65,6 @@ int MatchFinder_Create(CMatchFinder *p,
UInt32 keepAddBufferBefore, UInt32 matchMaxLen, UInt32 keepAddBufferAfter,
ISzAlloc *alloc);
void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc);
-void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems);
-void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue);
-
-UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *buffer, CLzRef *son,
- UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 _cutValue,
- UInt32 *distances, UInt32 maxLen);
/*
Conditions:
@@ -102,12 +91,6 @@ typedef struct _IMatchFinder
void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable);
-void MatchFinder_Init(CMatchFinder *p);
-UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances);
-UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances);
-void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num);
-void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num);
-
#ifdef __cplusplus
}
#endif
--- a/lib/lzma/LzFind.c
+++ b/lib/lzma/LzFind.c
@@ -42,12 +42,12 @@ static int LzInWindow_Create(CMatchFinde
return (p->bufferBase != 0);
}
-Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p) { return p->buffer; }
-Byte MatchFinder_GetIndexByte(CMatchFinder *p, Int32 index) { return p->buffer[index]; }
+static Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p) { return p->buffer; }
+static Byte MatchFinder_GetIndexByte(CMatchFinder *p, Int32 index) { return p->buffer[index]; }
-UInt32 MatchFinder_GetNumAvailableBytes(CMatchFinder *p) { return p->streamPos - p->pos; }
+static UInt32 MatchFinder_GetNumAvailableBytes(CMatchFinder *p) { return p->streamPos - p->pos; }
-void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue)
+static void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue)
{
p->posLimit -= subValue;
p->pos -= subValue;
@@ -268,7 +268,7 @@ static void MatchFinder_SetLimits(CMatch
p->posLimit = p->pos + limit;
}
-void MatchFinder_Init(CMatchFinder *p)
+static void MatchFinder_Init(CMatchFinder *p)
{
UInt32 i;
for (i = 0; i < p->hashSizeSum; i++)
@@ -287,7 +287,7 @@ static UInt32 MatchFinder_GetSubValue(CM
return (p->pos - p->historySize - 1) & kNormalizeMask;
}
-void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems)
+static void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems)
{
UInt32 i;
for (i = 0; i < numItems; i++)
@@ -350,7 +350,7 @@ static UInt32 * Hc_GetMatchesSpec(UInt32
}
}
-UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son,
+static UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son,
UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue,
UInt32 *distances, UInt32 maxLen)
{
@@ -492,7 +492,7 @@ static UInt32 Bt2_MatchFinder_GetMatches
GET_MATCHES_FOOTER(offset, 1)
}
-UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
+static __maybe_unused UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
{
UInt32 offset;
GET_MATCHES_HEADER(3)
@@ -632,7 +632,7 @@ static UInt32 Hc4_MatchFinder_GetMatches
MOVE_POS_RET
}
-UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
+static __maybe_unused UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
{
UInt32 offset;
GET_MATCHES_HEADER(3)
@@ -657,7 +657,7 @@ static void Bt2_MatchFinder_Skip(CMatchF
while (--num != 0);
}
-void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
+static __maybe_unused void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
{
do
{
@@ -718,7 +718,7 @@ static void Hc4_MatchFinder_Skip(CMatchF
while (--num != 0);
}
-void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
+static __maybe_unused void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
{
do
{

View File

@ -0,0 +1,132 @@
--- a/fs/jffs2/build.c
+++ b/fs/jffs2/build.c
@@ -112,6 +112,17 @@ static int jffs2_build_filesystem(struct
dbg_fsbuild("scanned flash completely\n");
jffs2_dbg_dump_block_lists_nolock(c);
+ if (c->flags & (1 << 7)) {
+ printk("%s(): unlocking the mtd device... ", __func__);
+ if (c->mtd->unlock)
+ c->mtd->unlock(c->mtd, 0, c->mtd->size);
+ printk("done.\n");
+
+ printk("%s(): erasing all blocks after the end marker... ", __func__);
+ jffs2_erase_pending_blocks(c, -1);
+ printk("done.\n");
+ }
+
dbg_fsbuild("pass 1 starting\n");
c->flags |= JFFS2_SB_FLAG_BUILDING;
/* Now scan the directory tree, increasing nlink according to every dirent found. */
--- a/fs/jffs2/scan.c
+++ b/fs/jffs2/scan.c
@@ -72,7 +72,7 @@ static int file_dirty(struct jffs2_sb_in
return ret;
if ((ret = jffs2_scan_dirty_space(c, jeb, jeb->free_size)))
return ret;
- /* Turned wasted size into dirty, since we apparently
+ /* Turned wasted size into dirty, since we apparently
think it's recoverable now. */
jeb->dirty_size += jeb->wasted_size;
c->dirty_size += jeb->wasted_size;
@@ -147,8 +147,11 @@ int jffs2_scan_medium(struct jffs2_sb_in
/* reset summary info for next eraseblock scan */
jffs2_sum_reset_collected(s);
- ret = jffs2_scan_eraseblock(c, jeb, buf_size?flashbuf:(flashbuf+jeb->offset),
- buf_size, s);
+ if (c->flags & (1 << 7))
+ ret = BLK_STATE_ALLFF;
+ else
+ ret = jffs2_scan_eraseblock(c, jeb, buf_size?flashbuf:(flashbuf+jeb->offset),
+ buf_size, s);
if (ret < 0)
goto out;
@@ -405,7 +408,7 @@ static int jffs2_scan_xref_node(struct j
if (!ref)
return -ENOMEM;
- /* BEFORE jffs2_build_xattr_subsystem() called,
+ /* BEFORE jffs2_build_xattr_subsystem() called,
* and AFTER xattr_ref is marked as a dead xref,
* ref->xid is used to store 32bit xid, xd is not used
* ref->ino is used to store 32bit inode-number, ic is not used
@@ -478,7 +481,7 @@ static int jffs2_scan_eraseblock (struct
struct jffs2_sum_marker *sm;
void *sumptr = NULL;
uint32_t sumlen;
-
+
if (!buf_size) {
/* XIP case. Just look, point at the summary if it's there */
sm = (void *)buf + c->sector_size - sizeof(*sm);
@@ -494,9 +497,9 @@ static int jffs2_scan_eraseblock (struct
buf_len = sizeof(*sm);
/* Read as much as we want into the _end_ of the preallocated buffer */
- err = jffs2_fill_scan_buf(c, buf + buf_size - buf_len,
+ err = jffs2_fill_scan_buf(c, buf + buf_size - buf_len,
jeb->offset + c->sector_size - buf_len,
- buf_len);
+ buf_len);
if (err)
return err;
@@ -515,9 +518,9 @@ static int jffs2_scan_eraseblock (struct
}
if (buf_len < sumlen) {
/* Need to read more so that the entire summary node is present */
- err = jffs2_fill_scan_buf(c, sumptr,
+ err = jffs2_fill_scan_buf(c, sumptr,
jeb->offset + c->sector_size - sumlen,
- sumlen - buf_len);
+ sumlen - buf_len);
if (err)
return err;
}
@@ -530,7 +533,7 @@ static int jffs2_scan_eraseblock (struct
if (buf_size && sumlen > buf_size)
kfree(sumptr);
- /* If it returns with a real error, bail.
+ /* If it returns with a real error, bail.
If it returns positive, that's a block classification
(i.e. BLK_STATE_xxx) so return that too.
If it returns zero, fall through to full scan. */
@@ -551,6 +554,17 @@ static int jffs2_scan_eraseblock (struct
return err;
}
+ if ((buf[0] == 0xde) &&
+ (buf[1] == 0xad) &&
+ (buf[2] == 0xc0) &&
+ (buf[3] == 0xde)) {
+ /* end of filesystem. erase everything after this point */
+ printk("%s(): End of filesystem marker found at 0x%x\n", __func__, jeb->offset);
+ c->flags |= (1 << 7);
+
+ return BLK_STATE_ALLFF;
+ }
+
/* We temporarily use 'ofs' as a pointer into the buffer/jeb */
ofs = 0;
max_ofs = EMPTY_SCAN_SIZE(c->sector_size);
@@ -676,7 +690,7 @@ scan_more:
scan_end = buf_len;
goto more_empty;
}
-
+
/* See how much more there is to read in this eraseblock... */
buf_len = min_t(uint32_t, buf_size, jeb->offset + c->sector_size - ofs);
if (!buf_len) {
@@ -912,7 +926,7 @@ scan_more:
D1(printk(KERN_DEBUG "Block at 0x%08x: free 0x%08x, dirty 0x%08x, unchecked 0x%08x, used 0x%08x, wasted 0x%08x\n",
jeb->offset,jeb->free_size, jeb->dirty_size, jeb->unchecked_size, jeb->used_size, jeb->wasted_size));
-
+
/* mark_node_obsolete can add to wasted !! */
if (jeb->wasted_size) {
jeb->dirty_size += jeb->wasted_size;

View File

@ -0,0 +1,25 @@
From f31b7c0efa255dd17a5f584022a319387f09b0d8 Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jonas.gorski@gmail.com>
Date: Tue, 12 Apr 2011 19:55:41 +0200
Subject: [PATCH] squashfs: update xz compressor options struct.
Update the xz compressor options struct to match the squashfs userspace
one.
---
fs/squashfs/xz_wrapper.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
--- a/fs/squashfs/xz_wrapper.c
+++ b/fs/squashfs/xz_wrapper.c
@@ -39,8 +39,10 @@ struct squashfs_xz {
};
struct comp_opts {
- __le32 dictionary_size;
__le32 flags;
+ __le16 bit_opts;
+ __le16 fb;
+ __le32 dictionary_size;
};
static void *squashfs_xz_init(struct squashfs_sb_info *msblk, void *buff,

File diff suppressed because it is too large Load Diff

View File

@ -0,0 +1,108 @@
--- a/include/linux/netfilter/xt_layer7.h
+++ b/include/linux/netfilter/xt_layer7.h
@@ -8,6 +8,7 @@ struct xt_layer7_info {
char protocol[MAX_PROTOCOL_LEN];
char pattern[MAX_PATTERN_LEN];
u_int8_t invert;
+ u_int8_t pkt;
};
#endif /* _XT_LAYER7_H */
--- a/net/netfilter/xt_layer7.c
+++ b/net/netfilter/xt_layer7.c
@@ -314,33 +314,35 @@ static int match_no_append(struct nf_con
}
/* add the new app data to the conntrack. Return number of bytes added. */
-static int add_data(struct nf_conn * master_conntrack,
- char * app_data, int appdatalen)
+static int add_datastr(char *target, int offset, char *app_data, int len)
{
int length = 0, i;
- int oldlength = master_conntrack->layer7.app_data_len;
-
- /* This is a fix for a race condition by Deti Fliegl. However, I'm not
- clear on whether the race condition exists or whether this really
- fixes it. I might just be being dense... Anyway, if it's not really
- a fix, all it does is waste a very small amount of time. */
- if(!master_conntrack->layer7.app_data) return 0;
+ if (!target) return 0;
/* Strip nulls. Make everything lower case (our regex lib doesn't
do case insensitivity). Add it to the end of the current data. */
- for(i = 0; i < maxdatalen-oldlength-1 &&
- i < appdatalen; i++) {
+ for(i = 0; i < maxdatalen-offset-1 && i < len; i++) {
if(app_data[i] != '\0') {
/* the kernel version of tolower mungs 'upper ascii' */
- master_conntrack->layer7.app_data[length+oldlength] =
+ target[length+offset] =
isascii(app_data[i])?
tolower(app_data[i]) : app_data[i];
length++;
}
}
+ target[length+offset] = '\0';
+
+ return length;
+}
+
+/* add the new app data to the conntrack. Return number of bytes added. */
+static int add_data(struct nf_conn * master_conntrack,
+ char * app_data, int appdatalen)
+{
+ int length;
- master_conntrack->layer7.app_data[length+oldlength] = '\0';
- master_conntrack->layer7.app_data_len = length + oldlength;
+ length = add_datastr(master_conntrack->layer7.app_data, master_conntrack->layer7.app_data_len, app_data, appdatalen);
+ master_conntrack->layer7.app_data_len += length;
return length;
}
@@ -438,7 +440,7 @@ match(const struct sk_buff *skbin,
enum ip_conntrack_info master_ctinfo, ctinfo;
struct nf_conn *master_conntrack, *conntrack;
- unsigned char * app_data;
+ unsigned char *app_data, *tmp_data;
unsigned int pattern_result, appdatalen;
regexp * comppattern;
@@ -466,8 +468,8 @@ match(const struct sk_buff *skbin,
master_conntrack = master_ct(master_conntrack);
/* if we've classified it or seen too many packets */
- if(total_acct_packets(master_conntrack) > num_packets ||
- master_conntrack->layer7.app_proto) {
+ if(!info->pkt && (total_acct_packets(master_conntrack) > num_packets ||
+ master_conntrack->layer7.app_proto)) {
pattern_result = match_no_append(conntrack, master_conntrack,
ctinfo, master_ctinfo, info);
@@ -500,6 +502,25 @@ match(const struct sk_buff *skbin,
/* the return value gets checked later, when we're ready to use it */
comppattern = compile_and_cache(info->pattern, info->protocol);
+ if (info->pkt) {
+ tmp_data = kmalloc(maxdatalen, GFP_ATOMIC);
+ if(!tmp_data){
+ if (net_ratelimit())
+ printk(KERN_ERR "layer7: out of memory in match, bailing.\n");
+ return info->invert;
+ }
+
+ tmp_data[0] = '\0';
+ add_datastr(tmp_data, 0, app_data, appdatalen);
+ pattern_result = ((comppattern && regexec(comppattern, tmp_data)) ? 1 : 0);
+
+ kfree(tmp_data);
+ tmp_data = NULL;
+ spin_unlock_bh(&l7_lock);
+
+ return (pattern_result ^ info->invert);
+ }
+
/* On the first packet of a connection, allocate space for app data */
if(total_acct_packets(master_conntrack) == 1 && !skb->cb[0] &&
!master_conntrack->layer7.app_data){

View File

@ -0,0 +1,51 @@
--- a/net/netfilter/xt_layer7.c
+++ b/net/netfilter/xt_layer7.c
@@ -415,7 +415,9 @@ static int layer7_write_proc(struct file
}
static bool
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
+match(const struct sk_buff *skbin, struct xt_action_param *par)
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)
match(const struct sk_buff *skbin, const struct xt_match_param *par)
#else
match(const struct sk_buff *skbin,
@@ -597,14 +599,19 @@ match(const struct sk_buff *skbin,
}
// load nf_conntrack_ipv4
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
+static int
+#else
+static bool
+#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)
-static bool check(const struct xt_mtchk_param *par)
+check(const struct xt_mtchk_param *par)
{
if (nf_ct_l3proto_try_module_get(par->match->family) < 0) {
printk(KERN_WARNING "can't load conntrack support for "
"proto=%d\n", par->match->family);
#else
-static bool check(const char *tablename, const void *inf,
+check(const char *tablename, const void *inf,
const struct xt_match *match, void *matchinfo,
unsigned int hook_mask)
{
@@ -612,9 +619,15 @@ static bool check(const char *tablename,
printk(KERN_WARNING "can't load conntrack support for "
"proto=%d\n", match->family);
#endif
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
+ return -EINVAL;
+ }
+ return 0;
+#else
return 0;
}
return 1;
+#endif
}

View File

@ -0,0 +1,61 @@
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -832,6 +832,27 @@ config NETFILTER_XT_MATCH_IPVS
If unsure, say N.
+config NETFILTER_XT_MATCH_LAYER7
+ tristate '"layer7" match support'
+ depends on EXPERIMENTAL
+ depends on NETFILTER_XTABLES
+ depends on NETFILTER_ADVANCED
+ depends on NF_CONNTRACK
+ help
+ Say Y if you want to be able to classify connections (and their
+ packets) based on regular expression matching of their application
+ layer data. This is one way to classify applications such as
+ peer-to-peer filesharing systems that do not always use the same
+ port.
+
+ To compile it as a module, choose M here. If unsure, say N.
+
+config NETFILTER_XT_MATCH_LAYER7_DEBUG
+ bool 'Layer 7 debugging output'
+ depends on NETFILTER_XT_MATCH_LAYER7
+ help
+ Say Y to get lots of debugging output.
+
config NETFILTER_XT_MATCH_LENGTH
tristate '"length" match support'
depends on NETFILTER_ADVANCED
@@ -1018,26 +1039,11 @@ config NETFILTER_XT_MATCH_STATE
To compile it as a module, choose M here. If unsure, say N.
-config NETFILTER_XT_MATCH_LAYER7
- tristate '"layer7" match support'
- depends on NETFILTER_XTABLES
- depends on EXPERIMENTAL && (IP_NF_CONNTRACK || NF_CONNTRACK)
- depends on NETFILTER_ADVANCED
- help
- Say Y if you want to be able to classify connections (and their
- packets) based on regular expression matching of their application
- layer data. This is one way to classify applications such as
- peer-to-peer filesharing systems that do not always use the same
- port.
-
- To compile it as a module, choose M here. If unsure, say N.
-
config NETFILTER_XT_MATCH_LAYER7_DEBUG
- bool 'Layer 7 debugging output'
- depends on NETFILTER_XT_MATCH_LAYER7
- help
- Say Y to get lots of debugging output.
-
+ bool 'Layer 7 debugging output'
+ depends on NETFILTER_XT_MATCH_LAYER7
+ help
+ Say Y to get lots of debugging output.
config NETFILTER_XT_MATCH_STATISTIC
tristate '"statistic" match support'

View File

@ -0,0 +1,118 @@
--- a/include/linux/netfilter/nf_conntrack_sip.h
+++ b/include/linux/netfilter/nf_conntrack_sip.h
@@ -2,12 +2,15 @@
#define __NF_CONNTRACK_SIP_H__
#ifdef __KERNEL__
+#include <linux/types.h>
+
#define SIP_PORT 5060
#define SIP_TIMEOUT 3600
struct nf_ct_sip_master {
unsigned int register_cseq;
unsigned int invite_cseq;
+ __be16 forced_dport;
};
enum sip_expectation_classes {
--- a/net/ipv4/netfilter/nf_nat_sip.c
+++ b/net/ipv4/netfilter/nf_nat_sip.c
@@ -73,6 +73,7 @@ static int map_addr(struct sk_buff *skb,
enum ip_conntrack_info ctinfo;
struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
+ struct nf_conn_help *help = nfct_help(ct);
char buffer[sizeof("nnn.nnn.nnn.nnn:nnnnn")];
unsigned int buflen;
__be32 newaddr;
@@ -85,7 +86,8 @@ static int map_addr(struct sk_buff *skb,
} else if (ct->tuplehash[dir].tuple.dst.u3.ip == addr->ip &&
ct->tuplehash[dir].tuple.dst.u.udp.port == port) {
newaddr = ct->tuplehash[!dir].tuple.src.u3.ip;
- newport = ct->tuplehash[!dir].tuple.src.u.udp.port;
+ newport = help->help.ct_sip_info.forced_dport ? :
+ ct->tuplehash[!dir].tuple.src.u.udp.port;
} else
return 1;
@@ -121,6 +123,7 @@ static unsigned int ip_nat_sip(struct sk
enum ip_conntrack_info ctinfo;
struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
+ struct nf_conn_help *help = nfct_help(ct);
unsigned int coff, matchoff, matchlen;
enum sip_header_types hdr;
union nf_inet_addr addr;
@@ -229,6 +232,20 @@ next:
!map_sip_addr(skb, dataoff, dptr, datalen, SIP_HDR_TO))
return NF_DROP;
+ /* Mangle destination port for Cisco phones, then fix up checksums */
+ if (dir == IP_CT_DIR_REPLY && help->help.ct_sip_info.forced_dport) {
+ struct udphdr *uh;
+
+ if (!skb_make_writable(skb, skb->len))
+ return NF_DROP;
+
+ uh = (struct udphdr *)(skb->data + ip_hdrlen(skb));
+ uh->dest = help->help.ct_sip_info.forced_dport;
+
+ if (!nf_nat_mangle_udp_packet(skb, ct, ctinfo, 0, 0, NULL, 0))
+ return NF_DROP;
+ }
+
return NF_ACCEPT;
}
@@ -280,8 +297,10 @@ static unsigned int ip_nat_sip_expect(st
enum ip_conntrack_info ctinfo;
struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
+ struct nf_conn_help *help = nfct_help(ct);
__be32 newip;
u_int16_t port;
+ __be16 srcport;
char buffer[sizeof("nnn.nnn.nnn.nnn:nnnnn")];
unsigned buflen;
@@ -294,8 +313,9 @@ static unsigned int ip_nat_sip_expect(st
/* If the signalling port matches the connection's source port in the
* original direction, try to use the destination port in the opposite
* direction. */
- if (exp->tuple.dst.u.udp.port ==
- ct->tuplehash[dir].tuple.src.u.udp.port)
+ srcport = help->help.ct_sip_info.forced_dport ? :
+ ct->tuplehash[dir].tuple.src.u.udp.port;
+ if (exp->tuple.dst.u.udp.port == srcport)
port = ntohs(ct->tuplehash[!dir].tuple.dst.u.udp.port);
else
port = ntohs(exp->tuple.dst.u.udp.port);
--- a/net/netfilter/nf_conntrack_sip.c
+++ b/net/netfilter/nf_conntrack_sip.c
@@ -1363,8 +1363,25 @@ static int process_sip_request(struct sk
{
enum ip_conntrack_info ctinfo;
struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
+ struct nf_conn_help *help = nfct_help(ct);
+ enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
unsigned int matchoff, matchlen;
unsigned int cseq, i;
+ union nf_inet_addr addr;
+ __be16 port;
+
+ /* Many Cisco IP phones use a high source port for SIP requests, but
+ * listen for the response on port 5060. If we are the local
+ * router for one of these phones, save the port number from the
+ * Via: header so that nf_nat_sip can redirect the responses to
+ * the correct port.
+ */
+ if (ct_sip_parse_header_uri(ct, *dptr, NULL, *datalen,
+ SIP_HDR_VIA_UDP, NULL, &matchoff,
+ &matchlen, &addr, &port) > 0 &&
+ port != ct->tuplehash[dir].tuple.src.u.udp.port &&
+ nf_inet_addr_cmp(&addr, &ct->tuplehash[dir].tuple.src.u3))
+ help->help.ct_sip_info.forced_dport = port;
for (i = 0; i < ARRAY_SIZE(sip_handlers); i++) {
const struct sip_handler *handler;

File diff suppressed because it is too large Load Diff

View File

@ -0,0 +1,90 @@
--- a/include/linux/netfilter_ipv4/ip_tables.h
+++ b/include/linux/netfilter_ipv4/ip_tables.h
@@ -93,6 +93,7 @@ struct ipt_ip {
#define IPT_F_FRAG 0x01 /* Set if rule is a fragment rule */
#define IPT_F_GOTO 0x02 /* Set if jump is a goto */
#define IPT_F_MASK 0x03 /* All possible flag bits mask. */
+#define IPT_F_NO_DEF_MATCH 0x80 /* Internal: no default match rules present */
/* Values for "inv" field in struct ipt_ip. */
#define IPT_INV_VIA_IN 0x01 /* Invert the sense of IN IFACE. */
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -81,6 +81,9 @@ ip_packet_match(const struct iphdr *ip,
#define FWINV(bool, invflg) ((bool) ^ !!(ipinfo->invflags & (invflg)))
+ if (ipinfo->flags & IPT_F_NO_DEF_MATCH)
+ return true;
+
if (FWINV((ip->saddr&ipinfo->smsk.s_addr) != ipinfo->src.s_addr,
IPT_INV_SRCIP) ||
FWINV((ip->daddr&ipinfo->dmsk.s_addr) != ipinfo->dst.s_addr,
@@ -134,6 +137,26 @@ ip_packet_match(const struct iphdr *ip,
return true;
}
+static void
+ip_checkdefault(struct ipt_ip *ip)
+{
+ static const char iface_mask[IFNAMSIZ] = {};
+
+ if (ip->invflags || ip->flags & IPT_F_FRAG)
+ return;
+
+ if (memcmp(ip->iniface_mask, iface_mask, IFNAMSIZ) != 0)
+ return;
+
+ if (memcmp(ip->outiface_mask, iface_mask, IFNAMSIZ) != 0)
+ return;
+
+ if (ip->proto)
+ return;
+
+ ip->flags |= IPT_F_NO_DEF_MATCH;
+}
+
static bool
ip_checkentry(const struct ipt_ip *ip)
{
@@ -561,7 +584,7 @@ static void cleanup_match(struct xt_entr
}
static int
-check_entry(const struct ipt_entry *e, const char *name)
+check_entry(struct ipt_entry *e, const char *name)
{
const struct xt_entry_target *t;
@@ -570,6 +593,8 @@ check_entry(const struct ipt_entry *e, c
return -EINVAL;
}
+ ip_checkdefault(&e->ip);
+
if (e->target_offset + sizeof(struct xt_entry_target) >
e->next_offset)
return -EINVAL;
@@ -931,6 +956,7 @@ copy_entries_to_user(unsigned int total_
const struct xt_table_info *private = table->private;
int ret = 0;
const void *loc_cpu_entry;
+ u8 flags;
counters = alloc_counters(table);
if (IS_ERR(counters))
@@ -961,6 +987,14 @@ copy_entries_to_user(unsigned int total_
ret = -EFAULT;
goto free_counters;
}
+
+ flags = e->ip.flags & IPT_F_MASK;
+ if (copy_to_user(userptr + off
+ + offsetof(struct ipt_entry, ip.flags),
+ &flags, sizeof(flags)) != 0) {
+ ret = -EFAULT;
+ goto free_counters;
+ }
for (i = sizeof(struct ipt_entry);
i < e->target_offset;

View File

@ -0,0 +1,81 @@
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -307,6 +307,33 @@ struct ipt_entry *ipt_next_entry(const s
return (void *)entry + entry->next_offset;
}
+static bool
+ipt_handle_default_rule(struct ipt_entry *e, unsigned int *verdict)
+{
+ struct xt_entry_target *t;
+ struct xt_standard_target *st;
+
+ if (e->target_offset != sizeof(struct ipt_entry))
+ return false;
+
+ if (!(e->ip.flags & IPT_F_NO_DEF_MATCH))
+ return false;
+
+ t = ipt_get_target(e);
+ if (t->u.kernel.target->target)
+ return false;
+
+ st = (struct xt_standard_target *) t;
+ if (st->verdict == XT_RETURN)
+ return false;
+
+ if (st->verdict >= 0)
+ return false;
+
+ *verdict = (unsigned)(-st->verdict) - 1;
+ return true;
+}
+
/* Returns one of the generic firewall policies, like NF_ACCEPT. */
unsigned int
ipt_do_table(struct sk_buff *skb,
@@ -331,6 +358,25 @@ ipt_do_table(struct sk_buff *skb,
ip = ip_hdr(skb);
indev = in ? in->name : nulldevname;
outdev = out ? out->name : nulldevname;
+
+ IP_NF_ASSERT(table->valid_hooks & (1 << hook));
+ local_bh_disable();
+ addend = xt_write_recseq_begin();
+ private = table->private;
+ cpu = smp_processor_id();
+ table_base = private->entries[cpu];
+ jumpstack = (struct ipt_entry **)private->jumpstack[cpu];
+ stackptr = per_cpu_ptr(private->stackptr, cpu);
+ origptr = *stackptr;
+
+ e = get_entry(table_base, private->hook_entry[hook]);
+ if (ipt_handle_default_rule(e, &verdict)) {
+ ADD_COUNTER(e->counters, skb->len, 1);
+ xt_write_recseq_end(addend);
+ local_bh_enable();
+ return verdict;
+ }
+
/* We handle fragments by dealing with the first fragment as
* if it was a normal packet. All other fragments are treated
* normally, except that they will NEVER match rules that ask
@@ -345,18 +391,6 @@ ipt_do_table(struct sk_buff *skb,
acpar.family = NFPROTO_IPV4;
acpar.hooknum = hook;
- IP_NF_ASSERT(table->valid_hooks & (1 << hook));
- local_bh_disable();
- addend = xt_write_recseq_begin();
- private = table->private;
- cpu = smp_processor_id();
- table_base = private->entries[cpu];
- jumpstack = (struct ipt_entry **)private->jumpstack[cpu];
- stackptr = per_cpu_ptr(private->stackptr, cpu);
- origptr = *stackptr;
-
- e = get_entry(table_base, private->hook_entry[hook]);
-
pr_debug("Entering %s(hook %u); sp at %u (UF %p)\n",
table->name, hook, origptr,
get_entry(table_base, private->underflow[hook]));

View File

@ -0,0 +1,16 @@
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -84,9 +84,11 @@ ip_packet_match(const struct iphdr *ip,
if (ipinfo->flags & IPT_F_NO_DEF_MATCH)
return true;
- if (FWINV((ip->saddr&ipinfo->smsk.s_addr) != ipinfo->src.s_addr,
+ if (FWINV(ipinfo->smsk.s_addr &&
+ (ip->saddr&ipinfo->smsk.s_addr) != ipinfo->src.s_addr,
IPT_INV_SRCIP) ||
- FWINV((ip->daddr&ipinfo->dmsk.s_addr) != ipinfo->dst.s_addr,
+ FWINV(ipinfo->smsk.s_addr &&
+ (ip->daddr&ipinfo->dmsk.s_addr) != ipinfo->dst.s_addr,
IPT_INV_DSTIP)) {
dprintf("Source or dest mismatch.\n");

View File

@ -0,0 +1,36 @@
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -29,6 +29,9 @@
#include <net/netfilter/ipv4/nf_conntrack_ipv4.h>
#include <net/netfilter/ipv6/nf_conntrack_ipv6.h>
+/* Do not check the TCP window for incoming packets */
+static int nf_ct_tcp_no_window_check __read_mostly = 1;
+
/* "Be conservative in what you do,
be liberal in what you accept from others."
If it's non-zero, we mark only out of window RST segments as INVALID. */
@@ -524,6 +527,9 @@ static bool tcp_in_window(const struct n
s16 receiver_offset;
bool res;
+ if (nf_ct_tcp_no_window_check)
+ return true;
+
/*
* Get the required data from the packet.
*/
@@ -1321,6 +1327,13 @@ static struct ctl_table tcp_sysctl_table
.proc_handler = proc_dointvec,
},
{
+ .procname = "nf_conntrack_tcp_no_window_check",
+ .data = &nf_ct_tcp_no_window_check,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
.procname = "nf_conntrack_tcp_be_liberal",
.data = &nf_ct_tcp_be_liberal,
.maxlen = sizeof(unsigned int),

View File

@ -0,0 +1,795 @@
--- a/include/linux/pkt_sched.h
+++ b/include/linux/pkt_sched.h
@@ -173,8 +173,37 @@ struct tc_sfq_xstats {
*
* The only reason for this is efficiency, it is possible
* to change these parameters in compile time.
+ *
+ * If you need to play with these values, use esfq instead.
*/
+/* ESFQ section */
+
+enum
+{
+ /* traditional */
+ TCA_SFQ_HASH_CLASSIC,
+ TCA_SFQ_HASH_DST,
+ TCA_SFQ_HASH_SRC,
+ TCA_SFQ_HASH_FWMARK,
+ /* conntrack */
+ TCA_SFQ_HASH_CTORIGDST,
+ TCA_SFQ_HASH_CTORIGSRC,
+ TCA_SFQ_HASH_CTREPLDST,
+ TCA_SFQ_HASH_CTREPLSRC,
+ TCA_SFQ_HASH_CTNATCHG,
+};
+
+struct tc_esfq_qopt
+{
+ unsigned quantum; /* Bytes per round allocated to flow */
+ int perturb_period; /* Period of hash perturbation */
+ __u32 limit; /* Maximal packets in queue */
+ unsigned divisor; /* Hash divisor */
+ unsigned flows; /* Maximal number of flows */
+ unsigned hash_kind; /* Hash function to use for flow identification */
+};
+
/* RED section */
enum {
--- a/net/sched/Kconfig
+++ b/net/sched/Kconfig
@@ -148,6 +148,37 @@ config NET_SCH_SFQ
To compile this code as a module, choose M here: the
module will be called sch_sfq.
+config NET_SCH_ESFQ
+ tristate "Enhanced Stochastic Fairness Queueing (ESFQ)"
+ ---help---
+ Say Y here if you want to use the Enhanced Stochastic Fairness
+ Queueing (ESFQ) packet scheduling algorithm for some of your network
+ devices or as a leaf discipline for a classful qdisc such as HTB or
+ CBQ (see the top of <file:net/sched/sch_esfq.c> for details and
+ references to the SFQ algorithm).
+
+ This is an enchanced SFQ version which allows you to control some
+ hardcoded values in the SFQ scheduler.
+
+ ESFQ also adds control of the hash function used to identify packet
+ flows. The original SFQ discipline hashes by connection; ESFQ add
+ several other hashing methods, such as by src IP or by dst IP, which
+ can be more fair to users in some networking situations.
+
+ To compile this code as a module, choose M here: the
+ module will be called sch_esfq.
+
+config NET_SCH_ESFQ_NFCT
+ bool "Connection Tracking Hash Types"
+ depends on NET_SCH_ESFQ && NF_CONNTRACK
+ ---help---
+ Say Y here to enable support for hashing based on netfilter connection
+ tracking information. This is useful for a router that is also using
+ NAT to connect privately-addressed hosts to the Internet. If you want
+ to provide fair distribution of upstream bandwidth, ESFQ must use
+ connection tracking information, since all outgoing packets will share
+ the same source address.
+
config NET_SCH_TEQL
tristate "True Link Equalizer (TEQL)"
---help---
--- a/net/sched/Makefile
+++ b/net/sched/Makefile
@@ -26,6 +26,7 @@ obj-$(CONFIG_NET_SCH_INGRESS) += sch_ing
obj-$(CONFIG_NET_SCH_DSMARK) += sch_dsmark.o
obj-$(CONFIG_NET_SCH_SFB) += sch_sfb.o
obj-$(CONFIG_NET_SCH_SFQ) += sch_sfq.o
+obj-$(CONFIG_NET_SCH_ESFQ) += sch_esfq.o
obj-$(CONFIG_NET_SCH_TBF) += sch_tbf.o
obj-$(CONFIG_NET_SCH_TEQL) += sch_teql.o
obj-$(CONFIG_NET_SCH_PRIO) += sch_prio.o
--- /dev/null
+++ b/net/sched/sch_esfq.c
@@ -0,0 +1,702 @@
+/*
+ * net/sched/sch_esfq.c Extended Stochastic Fairness Queueing discipline.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
+ *
+ * Changes: Alexander Atanasov, <alex@ssi.bg>
+ * Added dynamic depth,limit,divisor,hash_kind options.
+ * Added dst and src hashes.
+ *
+ * Alexander Clouter, <alex@digriz.org.uk>
+ * Ported ESFQ to Linux 2.6.
+ *
+ * Corey Hickey, <bugfood-c@fatooh.org>
+ * Maintenance of the Linux 2.6 port.
+ * Added fwmark hash (thanks to Robert Kurjata).
+ * Added usage of jhash.
+ * Added conntrack support.
+ * Added ctnatchg hash (thanks to Ben Pfountz).
+ */
+
+#include <linux/module.h>
+#include <asm/uaccess.h>
+#include <asm/system.h>
+#include <linux/bitops.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/jiffies.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/socket.h>
+#include <linux/sockios.h>
+#include <linux/in.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/if_ether.h>
+#include <linux/inet.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/notifier.h>
+#include <linux/init.h>
+#include <net/ip.h>
+#include <net/netlink.h>
+#include <linux/ipv6.h>
+#include <net/route.h>
+#include <linux/skbuff.h>
+#include <net/sock.h>
+#include <net/pkt_sched.h>
+#include <linux/jhash.h>
+#ifdef CONFIG_NET_SCH_ESFQ_NFCT
+#include <net/netfilter/nf_conntrack.h>
+#endif
+
+/* Stochastic Fairness Queuing algorithm.
+ For more comments look at sch_sfq.c.
+ The difference is that you can change limit, depth,
+ hash table size and choose alternate hash types.
+
+ classic: same as in sch_sfq.c
+ dst: destination IP address
+ src: source IP address
+ fwmark: netfilter mark value
+ ctorigdst: original destination IP address
+ ctorigsrc: original source IP address
+ ctrepldst: reply destination IP address
+ ctreplsrc: reply source IP
+
+*/
+
+#define ESFQ_HEAD 0
+#define ESFQ_TAIL 1
+
+/* This type should contain at least SFQ_DEPTH*2 values */
+typedef unsigned int esfq_index;
+
+struct esfq_head
+{
+ esfq_index next;
+ esfq_index prev;
+};
+
+struct esfq_sched_data
+{
+/* Parameters */
+ int perturb_period;
+ unsigned quantum; /* Allotment per round: MUST BE >= MTU */
+ int limit;
+ unsigned depth;
+ unsigned hash_divisor;
+ unsigned hash_kind;
+/* Variables */
+ struct timer_list perturb_timer;
+ int perturbation;
+ esfq_index tail; /* Index of current slot in round */
+ esfq_index max_depth; /* Maximal depth */
+
+ esfq_index *ht; /* Hash table */
+ esfq_index *next; /* Active slots link */
+ short *allot; /* Current allotment per slot */
+ unsigned short *hash; /* Hash value indexed by slots */
+ struct sk_buff_head *qs; /* Slot queue */
+ struct esfq_head *dep; /* Linked list of slots, indexed by depth */
+};
+
+/* This contains the info we will hash. */
+struct esfq_packet_info
+{
+ u32 proto; /* protocol or port */
+ u32 src; /* source from packet header */
+ u32 dst; /* destination from packet header */
+ u32 ctorigsrc; /* original source from conntrack */
+ u32 ctorigdst; /* original destination from conntrack */
+ u32 ctreplsrc; /* reply source from conntrack */
+ u32 ctrepldst; /* reply destination from conntrack */
+ u32 mark; /* netfilter mark (fwmark) */
+};
+
+static __inline__ unsigned esfq_jhash_1word(struct esfq_sched_data *q,u32 a)
+{
+ return jhash_1word(a, q->perturbation) & (q->hash_divisor-1);
+}
+
+static __inline__ unsigned esfq_jhash_2words(struct esfq_sched_data *q, u32 a, u32 b)
+{
+ return jhash_2words(a, b, q->perturbation) & (q->hash_divisor-1);
+}
+
+static __inline__ unsigned esfq_jhash_3words(struct esfq_sched_data *q, u32 a, u32 b, u32 c)
+{
+ return jhash_3words(a, b, c, q->perturbation) & (q->hash_divisor-1);
+}
+
+static unsigned esfq_hash(struct esfq_sched_data *q, struct sk_buff *skb)
+{
+ struct esfq_packet_info info;
+#ifdef CONFIG_NET_SCH_ESFQ_NFCT
+ enum ip_conntrack_info ctinfo;
+ struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
+#endif
+
+ switch (skb->protocol) {
+ case __constant_htons(ETH_P_IP):
+ {
+ struct iphdr *iph = ip_hdr(skb);
+ info.dst = iph->daddr;
+ info.src = iph->saddr;
+ if (!(iph->frag_off&htons(IP_MF|IP_OFFSET)) &&
+ (iph->protocol == IPPROTO_TCP ||
+ iph->protocol == IPPROTO_UDP ||
+ iph->protocol == IPPROTO_SCTP ||
+ iph->protocol == IPPROTO_DCCP ||
+ iph->protocol == IPPROTO_ESP))
+ info.proto = *(((u32*)iph) + iph->ihl);
+ else
+ info.proto = iph->protocol;
+ break;
+ }
+ case __constant_htons(ETH_P_IPV6):
+ {
+ struct ipv6hdr *iph = ipv6_hdr(skb);
+ /* Hash ipv6 addresses into a u32. This isn't ideal,
+ * but the code is simple. */
+ info.dst = jhash2(iph->daddr.s6_addr32, 4, q->perturbation);
+ info.src = jhash2(iph->saddr.s6_addr32, 4, q->perturbation);
+ if (iph->nexthdr == IPPROTO_TCP ||
+ iph->nexthdr == IPPROTO_UDP ||
+ iph->nexthdr == IPPROTO_SCTP ||
+ iph->nexthdr == IPPROTO_DCCP ||
+ iph->nexthdr == IPPROTO_ESP)
+ info.proto = *(u32*)&iph[1];
+ else
+ info.proto = iph->nexthdr;
+ break;
+ }
+ default:
+ info.dst = (u32)(unsigned long)skb_dst(skb);
+ info.src = (u32)(unsigned long)skb->sk;
+ info.proto = skb->protocol;
+ }
+
+ info.mark = skb->mark;
+
+#ifdef CONFIG_NET_SCH_ESFQ_NFCT
+ /* defaults if there is no conntrack info */
+ info.ctorigsrc = info.src;
+ info.ctorigdst = info.dst;
+ info.ctreplsrc = info.dst;
+ info.ctrepldst = info.src;
+ /* collect conntrack info */
+ if (ct && ct != &nf_conntrack_untracked) {
+ if (skb->protocol == __constant_htons(ETH_P_IP)) {
+ info.ctorigsrc = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip;
+ info.ctorigdst = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u3.ip;
+ info.ctreplsrc = ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.u3.ip;
+ info.ctrepldst = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3.ip;
+ }
+ else if (skb->protocol == __constant_htons(ETH_P_IPV6)) {
+ /* Again, hash ipv6 addresses into a single u32. */
+ info.ctorigsrc = jhash2(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip6, 4, q->perturbation);
+ info.ctorigdst = jhash2(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u3.ip6, 4, q->perturbation);
+ info.ctreplsrc = jhash2(ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.u3.ip6, 4, q->perturbation);
+ info.ctrepldst = jhash2(ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3.ip6, 4, q->perturbation);
+ }
+
+ }
+#endif
+
+ switch(q->hash_kind) {
+ case TCA_SFQ_HASH_CLASSIC:
+ return esfq_jhash_3words(q, info.dst, info.src, info.proto);
+ case TCA_SFQ_HASH_DST:
+ return esfq_jhash_1word(q, info.dst);
+ case TCA_SFQ_HASH_SRC:
+ return esfq_jhash_1word(q, info.src);
+ case TCA_SFQ_HASH_FWMARK:
+ return esfq_jhash_1word(q, info.mark);
+#ifdef CONFIG_NET_SCH_ESFQ_NFCT
+ case TCA_SFQ_HASH_CTORIGDST:
+ return esfq_jhash_1word(q, info.ctorigdst);
+ case TCA_SFQ_HASH_CTORIGSRC:
+ return esfq_jhash_1word(q, info.ctorigsrc);
+ case TCA_SFQ_HASH_CTREPLDST:
+ return esfq_jhash_1word(q, info.ctrepldst);
+ case TCA_SFQ_HASH_CTREPLSRC:
+ return esfq_jhash_1word(q, info.ctreplsrc);
+ case TCA_SFQ_HASH_CTNATCHG:
+ {
+ if (info.ctorigdst == info.ctreplsrc)
+ return esfq_jhash_1word(q, info.ctorigsrc);
+ return esfq_jhash_1word(q, info.ctreplsrc);
+ }
+#endif
+ default:
+ if (net_ratelimit())
+ printk(KERN_WARNING "ESFQ: Unknown hash method. Falling back to classic.\n");
+ }
+ return esfq_jhash_3words(q, info.dst, info.src, info.proto);
+}
+
+static inline void esfq_link(struct esfq_sched_data *q, esfq_index x)
+{
+ esfq_index p, n;
+ int d = q->qs[x].qlen + q->depth;
+
+ p = d;
+ n = q->dep[d].next;
+ q->dep[x].next = n;
+ q->dep[x].prev = p;
+ q->dep[p].next = q->dep[n].prev = x;
+}
+
+static inline void esfq_dec(struct esfq_sched_data *q, esfq_index x)
+{
+ esfq_index p, n;
+
+ n = q->dep[x].next;
+ p = q->dep[x].prev;
+ q->dep[p].next = n;
+ q->dep[n].prev = p;
+
+ if (n == p && q->max_depth == q->qs[x].qlen + 1)
+ q->max_depth--;
+
+ esfq_link(q, x);
+}
+
+static inline void esfq_inc(struct esfq_sched_data *q, esfq_index x)
+{
+ esfq_index p, n;
+ int d;
+
+ n = q->dep[x].next;
+ p = q->dep[x].prev;
+ q->dep[p].next = n;
+ q->dep[n].prev = p;
+ d = q->qs[x].qlen;
+ if (q->max_depth < d)
+ q->max_depth = d;
+
+ esfq_link(q, x);
+}
+
+static unsigned int esfq_drop(struct Qdisc *sch)
+{
+ struct esfq_sched_data *q = qdisc_priv(sch);
+ esfq_index d = q->max_depth;
+ struct sk_buff *skb;
+ unsigned int len;
+
+ /* Queue is full! Find the longest slot and
+ drop a packet from it */
+
+ if (d > 1) {
+ esfq_index x = q->dep[d+q->depth].next;
+ skb = q->qs[x].prev;
+ len = skb->len;
+ __skb_unlink(skb, &q->qs[x]);
+ kfree_skb(skb);
+ esfq_dec(q, x);
+ sch->q.qlen--;
+ sch->qstats.drops++;
+ sch->qstats.backlog -= len;
+ return len;
+ }
+
+ if (d == 1) {
+ /* It is difficult to believe, but ALL THE SLOTS HAVE LENGTH 1. */
+ d = q->next[q->tail];
+ q->next[q->tail] = q->next[d];
+ q->allot[q->next[d]] += q->quantum;
+ skb = q->qs[d].prev;
+ len = skb->len;
+ __skb_unlink(skb, &q->qs[d]);
+ kfree_skb(skb);
+ esfq_dec(q, d);
+ sch->q.qlen--;
+ q->ht[q->hash[d]] = q->depth;
+ sch->qstats.drops++;
+ sch->qstats.backlog -= len;
+ return len;
+ }
+
+ return 0;
+}
+
+static void esfq_q_enqueue(struct sk_buff *skb, struct esfq_sched_data *q, unsigned int end)
+{
+ unsigned hash = esfq_hash(q, skb);
+ unsigned depth = q->depth;
+ esfq_index x;
+
+ x = q->ht[hash];
+ if (x == depth) {
+ q->ht[hash] = x = q->dep[depth].next;
+ q->hash[x] = hash;
+ }
+
+ if (end == ESFQ_TAIL)
+ __skb_queue_tail(&q->qs[x], skb);
+ else
+ __skb_queue_head(&q->qs[x], skb);
+
+ esfq_inc(q, x);
+ if (q->qs[x].qlen == 1) { /* The flow is new */
+ if (q->tail == depth) { /* It is the first flow */
+ q->tail = x;
+ q->next[x] = x;
+ q->allot[x] = q->quantum;
+ } else {
+ q->next[x] = q->next[q->tail];
+ q->next[q->tail] = x;
+ q->tail = x;
+ }
+ }
+}
+
+static int esfq_enqueue(struct sk_buff *skb, struct Qdisc* sch)
+{
+ struct esfq_sched_data *q = qdisc_priv(sch);
+ esfq_q_enqueue(skb, q, ESFQ_TAIL);
+ sch->qstats.backlog += skb->len;
+ if (++sch->q.qlen < q->limit-1) {
+ sch->bstats.bytes += skb->len;
+ sch->bstats.packets++;
+ return 0;
+ }
+
+ sch->qstats.drops++;
+ esfq_drop(sch);
+ return NET_XMIT_CN;
+}
+
+static struct sk_buff *esfq_peek(struct Qdisc* sch)
+{
+ struct esfq_sched_data *q = qdisc_priv(sch);
+ esfq_index a;
+
+ /* No active slots */
+ if (q->tail == q->depth)
+ return NULL;
+
+ a = q->next[q->tail];
+ return skb_peek(&q->qs[a]);
+}
+
+static struct sk_buff *esfq_q_dequeue(struct esfq_sched_data *q)
+{
+ struct sk_buff *skb;
+ unsigned depth = q->depth;
+ esfq_index a, old_a;
+
+ /* No active slots */
+ if (q->tail == depth)
+ return NULL;
+
+ a = old_a = q->next[q->tail];
+
+ /* Grab packet */
+ skb = __skb_dequeue(&q->qs[a]);
+ esfq_dec(q, a);
+
+ /* Is the slot empty? */
+ if (q->qs[a].qlen == 0) {
+ q->ht[q->hash[a]] = depth;
+ a = q->next[a];
+ if (a == old_a) {
+ q->tail = depth;
+ return skb;
+ }
+ q->next[q->tail] = a;
+ q->allot[a] += q->quantum;
+ } else if ((q->allot[a] -= skb->len) <= 0) {
+ q->tail = a;
+ a = q->next[a];
+ q->allot[a] += q->quantum;
+ }
+
+ return skb;
+}
+
+static struct sk_buff *esfq_dequeue(struct Qdisc* sch)
+{
+ struct esfq_sched_data *q = qdisc_priv(sch);
+ struct sk_buff *skb;
+
+ skb = esfq_q_dequeue(q);
+ if (skb == NULL)
+ return NULL;
+ sch->q.qlen--;
+ sch->qstats.backlog -= skb->len;
+ return skb;
+}
+
+static void esfq_q_destroy(struct esfq_sched_data *q)
+{
+ del_timer(&q->perturb_timer);
+ if(q->ht)
+ kfree(q->ht);
+ if(q->dep)
+ kfree(q->dep);
+ if(q->next)
+ kfree(q->next);
+ if(q->allot)
+ kfree(q->allot);
+ if(q->hash)
+ kfree(q->hash);
+ if(q->qs)
+ kfree(q->qs);
+}
+
+static void esfq_destroy(struct Qdisc *sch)
+{
+ struct esfq_sched_data *q = qdisc_priv(sch);
+ esfq_q_destroy(q);
+}
+
+
+static void esfq_reset(struct Qdisc* sch)
+{
+ struct sk_buff *skb;
+
+ while ((skb = esfq_dequeue(sch)) != NULL)
+ kfree_skb(skb);
+}
+
+static void esfq_perturbation(unsigned long arg)
+{
+ struct Qdisc *sch = (struct Qdisc*)arg;
+ struct esfq_sched_data *q = qdisc_priv(sch);
+
+ q->perturbation = net_random()&0x1F;
+
+ if (q->perturb_period) {
+ q->perturb_timer.expires = jiffies + q->perturb_period;
+ add_timer(&q->perturb_timer);
+ }
+}
+
+static unsigned int esfq_check_hash(unsigned int kind)
+{
+ switch (kind) {
+ case TCA_SFQ_HASH_CTORIGDST:
+ case TCA_SFQ_HASH_CTORIGSRC:
+ case TCA_SFQ_HASH_CTREPLDST:
+ case TCA_SFQ_HASH_CTREPLSRC:
+ case TCA_SFQ_HASH_CTNATCHG:
+#ifndef CONFIG_NET_SCH_ESFQ_NFCT
+ {
+ if (net_ratelimit())
+ printk(KERN_WARNING "ESFQ: Conntrack hash types disabled in kernel config. Falling back to classic.\n");
+ return TCA_SFQ_HASH_CLASSIC;
+ }
+#endif
+ case TCA_SFQ_HASH_CLASSIC:
+ case TCA_SFQ_HASH_DST:
+ case TCA_SFQ_HASH_SRC:
+ case TCA_SFQ_HASH_FWMARK:
+ return kind;
+ default:
+ {
+ if (net_ratelimit())
+ printk(KERN_WARNING "ESFQ: Unknown hash type. Falling back to classic.\n");
+ return TCA_SFQ_HASH_CLASSIC;
+ }
+ }
+}
+
+static int esfq_q_init(struct esfq_sched_data *q, struct nlattr *opt)
+{
+ struct tc_esfq_qopt *ctl = nla_data(opt);
+ esfq_index p = ~0U/2;
+ int i;
+
+ if (opt && opt->nla_len < nla_attr_size(sizeof(*ctl)))
+ return -EINVAL;
+
+ q->perturbation = 0;
+ q->hash_kind = TCA_SFQ_HASH_CLASSIC;
+ q->max_depth = 0;
+ if (opt == NULL) {
+ q->perturb_period = 0;
+ q->hash_divisor = 1024;
+ q->tail = q->limit = q->depth = 128;
+
+ } else {
+ struct tc_esfq_qopt *ctl = nla_data(opt);
+ if (ctl->quantum)
+ q->quantum = ctl->quantum;
+ q->perturb_period = ctl->perturb_period*HZ;
+ q->hash_divisor = ctl->divisor ? : 1024;
+ q->tail = q->limit = q->depth = ctl->flows ? : 128;
+
+ if ( q->depth > p - 1 )
+ return -EINVAL;
+
+ if (ctl->limit)
+ q->limit = min_t(u32, ctl->limit, q->depth);
+
+ if (ctl->hash_kind) {
+ q->hash_kind = esfq_check_hash(ctl->hash_kind);
+ }
+ }
+
+ q->ht = kmalloc(q->hash_divisor*sizeof(esfq_index), GFP_KERNEL);
+ if (!q->ht)
+ goto err_case;
+ q->dep = kmalloc((1+q->depth*2)*sizeof(struct esfq_head), GFP_KERNEL);
+ if (!q->dep)
+ goto err_case;
+ q->next = kmalloc(q->depth*sizeof(esfq_index), GFP_KERNEL);
+ if (!q->next)
+ goto err_case;
+ q->allot = kmalloc(q->depth*sizeof(short), GFP_KERNEL);
+ if (!q->allot)
+ goto err_case;
+ q->hash = kmalloc(q->depth*sizeof(unsigned short), GFP_KERNEL);
+ if (!q->hash)
+ goto err_case;
+ q->qs = kmalloc(q->depth*sizeof(struct sk_buff_head), GFP_KERNEL);
+ if (!q->qs)
+ goto err_case;
+
+ for (i=0; i< q->hash_divisor; i++)
+ q->ht[i] = q->depth;
+ for (i=0; i<q->depth; i++) {
+ skb_queue_head_init(&q->qs[i]);
+ q->dep[i+q->depth].next = i+q->depth;
+ q->dep[i+q->depth].prev = i+q->depth;
+ }
+
+ for (i=0; i<q->depth; i++)
+ esfq_link(q, i);
+ return 0;
+err_case:
+ esfq_q_destroy(q);
+ return -ENOBUFS;
+}
+
+static int esfq_init(struct Qdisc *sch, struct nlattr *opt)
+{
+ struct esfq_sched_data *q = qdisc_priv(sch);
+ int err;
+
+ q->quantum = psched_mtu(qdisc_dev(sch)); /* default */
+ if ((err = esfq_q_init(q, opt)))
+ return err;
+
+ init_timer(&q->perturb_timer);
+ q->perturb_timer.data = (unsigned long)sch;
+ q->perturb_timer.function = esfq_perturbation;
+ if (q->perturb_period) {
+ q->perturb_timer.expires = jiffies + q->perturb_period;
+ add_timer(&q->perturb_timer);
+ }
+
+ return 0;
+}
+
+static int esfq_change(struct Qdisc *sch, struct nlattr *opt)
+{
+ struct esfq_sched_data *q = qdisc_priv(sch);
+ struct esfq_sched_data new;
+ struct sk_buff *skb;
+ int err;
+
+ /* set up new queue */
+ memset(&new, 0, sizeof(struct esfq_sched_data));
+ new.quantum = psched_mtu(qdisc_dev(sch)); /* default */
+ if ((err = esfq_q_init(&new, opt)))
+ return err;
+
+ /* copy all packets from the old queue to the new queue */
+ sch_tree_lock(sch);
+ while ((skb = esfq_q_dequeue(q)) != NULL)
+ esfq_q_enqueue(skb, &new, ESFQ_TAIL);
+
+ /* clean up the old queue */
+ esfq_q_destroy(q);
+
+ /* copy elements of the new queue into the old queue */
+ q->perturb_period = new.perturb_period;
+ q->quantum = new.quantum;
+ q->limit = new.limit;
+ q->depth = new.depth;
+ q->hash_divisor = new.hash_divisor;
+ q->hash_kind = new.hash_kind;
+ q->tail = new.tail;
+ q->max_depth = new.max_depth;
+ q->ht = new.ht;
+ q->dep = new.dep;
+ q->next = new.next;
+ q->allot = new.allot;
+ q->hash = new.hash;
+ q->qs = new.qs;
+
+ /* finish up */
+ if (q->perturb_period) {
+ q->perturb_timer.expires = jiffies + q->perturb_period;
+ add_timer(&q->perturb_timer);
+ } else {
+ q->perturbation = 0;
+ }
+ sch_tree_unlock(sch);
+ return 0;
+}
+
+static int esfq_dump(struct Qdisc *sch, struct sk_buff *skb)
+{
+ struct esfq_sched_data *q = qdisc_priv(sch);
+ unsigned char *b = skb_tail_pointer(skb);
+ struct tc_esfq_qopt opt;
+
+ opt.quantum = q->quantum;
+ opt.perturb_period = q->perturb_period/HZ;
+
+ opt.limit = q->limit;
+ opt.divisor = q->hash_divisor;
+ opt.flows = q->depth;
+ opt.hash_kind = q->hash_kind;
+
+ NLA_PUT(skb, TCA_OPTIONS, sizeof(opt), &opt);
+
+ return skb->len;
+
+nla_put_failure:
+ nlmsg_trim(skb, b);
+ return -1;
+}
+
+static struct Qdisc_ops esfq_qdisc_ops =
+{
+ .next = NULL,
+ .cl_ops = NULL,
+ .id = "esfq",
+ .priv_size = sizeof(struct esfq_sched_data),
+ .enqueue = esfq_enqueue,
+ .dequeue = esfq_dequeue,
+ .peek = esfq_peek,
+ .drop = esfq_drop,
+ .init = esfq_init,
+ .reset = esfq_reset,
+ .destroy = esfq_destroy,
+ .change = esfq_change,
+ .dump = esfq_dump,
+ .owner = THIS_MODULE,
+};
+
+static int __init esfq_module_init(void)
+{
+ return register_qdisc(&esfq_qdisc_ops);
+}
+static void __exit esfq_module_exit(void)
+{
+ unregister_qdisc(&esfq_qdisc_ops);
+}
+module_init(esfq_module_init)
+module_exit(esfq_module_exit)
+MODULE_LICENSE("GPL");

View File

@ -0,0 +1,172 @@
--- /dev/null
+++ b/net/sched/act_connmark.c
@@ -0,0 +1,137 @@
+/*
+ * Copyright (c) 2011 Felix Fietkau <nbd@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place - Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/skbuff.h>
+#include <linux/rtnetlink.h>
+#include <linux/pkt_cls.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <net/netlink.h>
+#include <net/pkt_sched.h>
+#include <net/act_api.h>
+
+#include <net/netfilter/nf_conntrack.h>
+#include <net/netfilter/nf_conntrack_core.h>
+
+#define TCA_ACT_CONNMARK 20
+
+#define CONNMARK_TAB_MASK 3
+static struct tcf_common *tcf_connmark_ht[CONNMARK_TAB_MASK + 1];
+static u32 connmark_idx_gen;
+static DEFINE_RWLOCK(connmark_lock);
+
+static struct tcf_hashinfo connmark_hash_info = {
+ .htab = tcf_connmark_ht,
+ .hmask = CONNMARK_TAB_MASK,
+ .lock = &connmark_lock,
+};
+
+static int tcf_connmark(struct sk_buff *skb, struct tc_action *a,
+ struct tcf_result *res)
+{
+ struct nf_conn *c;
+ enum ip_conntrack_info ctinfo;
+ int proto;
+ int r;
+
+ if (skb->protocol == htons(ETH_P_IP)) {
+ if (skb->len < sizeof(struct iphdr))
+ goto out;
+ proto = PF_INET;
+ } else if (skb->protocol == htons(ETH_P_IPV6)) {
+ if (skb->len < sizeof(struct ipv6hdr))
+ goto out;
+ proto = PF_INET6;
+ } else
+ goto out;
+
+ r = nf_conntrack_in(dev_net(skb->dev), proto, NF_INET_PRE_ROUTING, skb);
+ if (r != NF_ACCEPT)
+ goto out;
+
+ c = nf_ct_get(skb, &ctinfo);
+ if (!c)
+ goto out;
+
+ skb->mark = c->mark;
+ nf_conntrack_put(skb->nfct);
+ skb->nfct = NULL;
+
+out:
+ return TC_ACT_PIPE;
+}
+
+static int tcf_connmark_init(struct nlattr *nla, struct nlattr *est,
+ struct tc_action *a, int ovr, int bind)
+{
+ struct tcf_common *pc;
+
+ pc = tcf_hash_create(0, est, a, sizeof(*pc), bind,
+ &connmark_idx_gen, &connmark_hash_info);
+ if (IS_ERR(pc))
+ return PTR_ERR(pc);
+
+ tcf_hash_insert(pc, &connmark_hash_info);
+
+ return ACT_P_CREATED;
+}
+
+static inline int tcf_connmark_cleanup(struct tc_action *a, int bind)
+{
+ if (a->priv)
+ return tcf_hash_release(a->priv, bind, &connmark_hash_info);
+ return 0;
+}
+
+static inline int tcf_connmark_dump(struct sk_buff *skb, struct tc_action *a,
+ int bind, int ref)
+{
+ return skb->len;
+}
+
+static struct tc_action_ops act_connmark_ops = {
+ .kind = "connmark",
+ .hinfo = &connmark_hash_info,
+ .type = TCA_ACT_CONNMARK,
+ .capab = TCA_CAP_NONE,
+ .owner = THIS_MODULE,
+ .act = tcf_connmark,
+ .dump = tcf_connmark_dump,
+ .cleanup = tcf_connmark_cleanup,
+ .init = tcf_connmark_init,
+ .walk = tcf_generic_walker,
+};
+
+MODULE_AUTHOR("Felix Fietkau <nbd@openwrt.org>");
+MODULE_DESCRIPTION("Connection tracking mark restoring");
+MODULE_LICENSE("GPL");
+
+static int __init connmark_init_module(void)
+{
+ return tcf_register_action(&act_connmark_ops);
+}
+
+static void __exit connmark_cleanup_module(void)
+{
+ tcf_unregister_action(&act_connmark_ops);
+}
+
+module_init(connmark_init_module);
+module_exit(connmark_cleanup_module);
--- a/net/sched/Kconfig
+++ b/net/sched/Kconfig
@@ -602,6 +602,19 @@ config NET_ACT_CSUM
To compile this code as a module, choose M here: the
module will be called act_csum.
+config NET_ACT_CONNMARK
+ tristate "Connection Tracking Marking"
+ depends on NET_CLS_ACT
+ depends on NF_CONNTRACK
+ depends on NF_CONNTRACK_MARK
+ ---help---
+ Say Y here to restore the connmark from a scheduler action
+
+ If unsure, say N.
+
+ To compile this code as a module, choose M here: the
+ module will be called act_connmark.
+
config NET_CLS_IND
bool "Incoming device classification"
depends on NET_CLS_U32 || NET_CLS_FW
--- a/net/sched/Makefile
+++ b/net/sched/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_NET_ACT_PEDIT) += act_pedit
obj-$(CONFIG_NET_ACT_SIMP) += act_simple.o
obj-$(CONFIG_NET_ACT_SKBEDIT) += act_skbedit.o
obj-$(CONFIG_NET_ACT_CSUM) += act_csum.o
+obj-$(CONFIG_NET_ACT_CONNMARK) += act_connmark.o
obj-$(CONFIG_NET_SCH_FIFO) += sch_fifo.o
obj-$(CONFIG_NET_SCH_CBQ) += sch_cbq.o
obj-$(CONFIG_NET_SCH_HTB) += sch_htb.o

View File

@ -0,0 +1,132 @@
This patch allows the user to specify desired packet types (outgoing,
broadcast, unicast, etc.) on packet sockets via setsockopt.
This can reduce the load in situations where only a limited number
of packet types are necessary
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
--- a/include/linux/if_packet.h
+++ b/include/linux/if_packet.h
@@ -29,6 +29,8 @@ struct sockaddr_ll {
/* These ones are invisible by user level */
#define PACKET_LOOPBACK 5 /* MC/BRD frame looped back */
#define PACKET_FASTROUTE 6 /* Fastrouted frame */
+#define PACKET_MASK_ANY 0xffffffff /* mask for packet type bits */
+
/* Packet socket options */
@@ -50,6 +52,7 @@ struct sockaddr_ll {
#define PACKET_TX_TIMESTAMP 16
#define PACKET_TIMESTAMP 17
#define PACKET_FANOUT 18
+#define PACKET_RECV_TYPE 19
#define PACKET_FANOUT_HASH 0
#define PACKET_FANOUT_LB 1
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -212,6 +212,7 @@ struct packet_sock {
unsigned int tp_loss:1;
unsigned int tp_tstamp;
struct packet_type prot_hook ____cacheline_aligned_in_smp;
+ unsigned int pkt_type;
};
#define PACKET_FANOUT_MAX 256
@@ -661,6 +662,7 @@ static int packet_rcv_spkt(struct sk_buf
{
struct sock *sk;
struct sockaddr_pkt *spkt;
+ struct packet_sock *po;
/*
* When we registered the protocol we saved the socket in the data
@@ -668,6 +670,7 @@ static int packet_rcv_spkt(struct sk_buf
*/
sk = pt->af_packet_priv;
+ po = pkt_sk(sk);
/*
* Yank back the headers [hope the device set this
@@ -680,7 +683,7 @@ static int packet_rcv_spkt(struct sk_buf
* so that this procedure is noop.
*/
- if (skb->pkt_type == PACKET_LOOPBACK)
+ if (!(po->pkt_type & (1 << skb->pkt_type)))
goto out;
if (!net_eq(dev_net(dev), sock_net(sk)))
@@ -873,12 +876,12 @@ static int packet_rcv(struct sk_buff *sk
int skb_len = skb->len;
unsigned int snaplen, res;
- if (skb->pkt_type == PACKET_LOOPBACK)
- goto drop;
-
sk = pt->af_packet_priv;
po = pkt_sk(sk);
+ if (!(po->pkt_type & (1 << skb->pkt_type)))
+ goto drop;
+
if (!net_eq(dev_net(dev), sock_net(sk)))
goto drop;
@@ -994,12 +997,12 @@ static int tpacket_rcv(struct sk_buff *s
struct timespec ts;
struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb);
- if (skb->pkt_type == PACKET_LOOPBACK)
- goto drop;
-
sk = pt->af_packet_priv;
po = pkt_sk(sk);
+ if (!(po->pkt_type & (1 << skb->pkt_type)))
+ goto drop;
+
if (!net_eq(dev_net(dev), sock_net(sk)))
goto drop;
@@ -1826,6 +1829,7 @@ static int packet_create(struct net *net
spin_lock_init(&po->bind_lock);
mutex_init(&po->pg_vec_lock);
po->prot_hook.func = packet_rcv;
+ po->pkt_type = PACKET_MASK_ANY & ~(1 << PACKET_LOOPBACK);
if (sock->type == SOCK_PACKET)
po->prot_hook.func = packet_rcv_spkt;
@@ -2410,6 +2414,16 @@ packet_setsockopt(struct socket *sock, i
return fanout_add(sk, val & 0xffff, val >> 16);
}
+ case PACKET_RECV_TYPE:
+ {
+ unsigned int val;
+ if (optlen != sizeof(val))
+ return -EINVAL;
+ if (copy_from_user(&val, optval, sizeof(val)))
+ return -EFAULT;
+ po->pkt_type = val & ~PACKET_LOOPBACK;
+ return 0;
+ }
default:
return -ENOPROTOOPT;
}
@@ -2467,6 +2481,13 @@ static int packet_getsockopt(struct sock
data = &val;
break;
+ case PACKET_RECV_TYPE:
+ if (len > sizeof(unsigned int))
+ len = sizeof(unsigned int);
+ val = po->pkt_type;
+
+ data = &val;
+ break;
case PACKET_VERSION:
if (len > sizeof(int))
len = sizeof(int);

View File

@ -0,0 +1,15 @@
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -77,7 +77,11 @@ int br_handle_frame_finish(struct sk_buf
dst = NULL;
- if (is_broadcast_ether_addr(dest))
+ if (skb->protocol == htons(ETH_P_PAE)) {
+ skb2 = skb;
+ /* Do not forward 802.1x/EAP frames */
+ skb = NULL;
+ } else if (is_broadcast_ether_addr(dest))
skb2 = skb;
else if (is_multicast_ether_addr(dest)) {
mdst = br_mdb_get(br, skb);

View File

@ -0,0 +1,11 @@
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -64,7 +64,7 @@ int br_handle_frame_finish(struct sk_buf
br_multicast_rcv(br, p, skb))
goto drop;
- if (p->state == BR_STATE_LEARNING)
+ if ((p->state == BR_STATE_LEARNING) && skb->protocol != htons(ETH_P_PAE))
goto drop;
BR_INPUT_SKB_CB(skb)->brdev = br->dev;

View File

@ -0,0 +1,103 @@
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -134,6 +134,7 @@ struct net_bridge_port
unsigned long flags;
#define BR_HAIRPIN_MODE 0x00000001
+#define BR_ISOLATE_MODE 0x00000002
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
u32 multicast_startup_queries_sent;
--- a/net/bridge/br_sysfs_if.c
+++ b/net/bridge/br_sysfs_if.c
@@ -149,6 +149,22 @@ static int store_hairpin_mode(struct net
static BRPORT_ATTR(hairpin_mode, S_IRUGO | S_IWUSR,
show_hairpin_mode, store_hairpin_mode);
+static ssize_t show_isolate_mode(struct net_bridge_port *p, char *buf)
+{
+ int isolate_mode = (p->flags & BR_ISOLATE_MODE) ? 1 : 0;
+ return sprintf(buf, "%d\n", isolate_mode);
+}
+static ssize_t store_isolate_mode(struct net_bridge_port *p, unsigned long v)
+{
+ if (v)
+ p->flags |= BR_ISOLATE_MODE;
+ else
+ p->flags &= ~BR_ISOLATE_MODE;
+ return 0;
+}
+static BRPORT_ATTR(isolate_mode, S_IRUGO | S_IWUSR,
+ show_isolate_mode, store_isolate_mode);
+
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
static ssize_t show_multicast_router(struct net_bridge_port *p, char *buf)
{
@@ -181,6 +197,7 @@ static struct brport_attribute *brport_a
&brport_attr_hold_timer,
&brport_attr_flush,
&brport_attr_hairpin_mode,
+ &brport_attr_isolate_mode,
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
&brport_attr_multicast_router,
#endif
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -97,7 +97,8 @@ int br_handle_frame_finish(struct sk_buf
skb2 = skb;
br->dev->stats.multicast++;
- } else if ((dst = __br_fdb_get(br, dest)) && dst->is_local) {
+ } else if ((p->flags & BR_ISOLATE_MODE) ||
+ ((dst = __br_fdb_get(br, dest)) && dst->is_local)) {
skb2 = skb;
/* Do not forward the packet since it's local. */
skb = NULL;
--- a/net/bridge/br_forward.c
+++ b/net/bridge/br_forward.c
@@ -109,7 +109,7 @@ void br_deliver(const struct net_bridge_
/* called with rcu_read_lock */
void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, struct sk_buff *skb0)
{
- if (should_deliver(to, skb)) {
+ if (should_deliver(to, skb) && !(to->flags & BR_ISOLATE_MODE)) {
if (skb0)
deliver_clone(to, skb, __br_forward);
else
@@ -164,7 +164,8 @@ out:
static void br_flood(struct net_bridge *br, struct sk_buff *skb,
struct sk_buff *skb0,
void (*__packet_hook)(const struct net_bridge_port *p,
- struct sk_buff *skb))
+ struct sk_buff *skb),
+ bool forward)
{
struct net_bridge_port *p;
struct net_bridge_port *prev;
@@ -172,6 +173,9 @@ static void br_flood(struct net_bridge *
prev = NULL;
list_for_each_entry_rcu(p, &br->port_list, list) {
+ if (forward && (p->flags & BR_ISOLATE_MODE))
+ continue;
+
prev = maybe_deliver(prev, p, skb, __packet_hook);
if (IS_ERR(prev))
goto out;
@@ -195,14 +199,14 @@ out:
/* called with rcu_read_lock */
void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb)
{
- br_flood(br, skb, NULL, __br_deliver);
+ br_flood(br, skb, NULL, __br_deliver, false);
}
/* called under bridge lock */
void br_flood_forward(struct net_bridge *br, struct sk_buff *skb,
struct sk_buff *skb2)
{
- br_flood(br, skb, skb2, __br_forward);
+ br_flood(br, skb, skb2, __br_forward, true);
}
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING

View File

@ -0,0 +1,101 @@
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -91,6 +91,12 @@ extern void addrconf_join_solict(struc
extern void addrconf_leave_solict(struct inet6_dev *idev,
const struct in6_addr *addr);
+extern int (*ipv6_dev_get_saddr_hook)(struct net *net,
+ struct net_device *dev,
+ const struct in6_addr *daddr,
+ unsigned int srcprefs,
+ struct in6_addr *saddr);
+
static inline unsigned long addrconf_timeout_fixup(u32 timeout,
unsigned unit)
{
--- a/net/bridge/Kconfig
+++ b/net/bridge/Kconfig
@@ -6,7 +6,6 @@ config BRIDGE
tristate "802.1d Ethernet Bridging"
select LLC
select STP
- depends on IPV6 || IPV6=n
---help---
If you say Y here, then your Linux box will be able to act as an
Ethernet bridge, which means that the different Ethernet segments it
--- a/net/ipv6/Makefile
+++ b/net/ipv6/Makefile
@@ -40,3 +40,4 @@ obj-$(CONFIG_IPV6_TUNNEL) += ip6_tunnel.
obj-y += addrconf_core.o exthdrs_core.o
obj-$(subst m,y,$(CONFIG_IPV6)) += inet6_hashtables.o
+obj-$(subst m,y,$(CONFIG_IPV6)) += inet6_stubs.o
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1106,7 +1106,7 @@ out:
return ret;
}
-int ipv6_dev_get_saddr(struct net *net, struct net_device *dst_dev,
+static int __ipv6_dev_get_saddr(struct net *net, struct net_device *dst_dev,
const struct in6_addr *daddr, unsigned int prefs,
struct in6_addr *saddr)
{
@@ -1231,7 +1231,6 @@ try_nextdev:
in6_ifa_put(hiscore->ifa);
return 0;
}
-EXPORT_SYMBOL(ipv6_dev_get_saddr);
int ipv6_get_lladdr(struct net_device *dev, struct in6_addr *addr,
unsigned char banned_flags)
@@ -4748,6 +4747,9 @@ int __init addrconf_init(void)
ipv6_addr_label_rtnl_register();
+ BUG_ON(ipv6_dev_get_saddr_hook != NULL);
+ rcu_assign_pointer(ipv6_dev_get_saddr_hook, __ipv6_dev_get_saddr);
+
return 0;
errout:
rtnl_af_unregister(&inet6_ops);
@@ -4766,6 +4768,9 @@ void addrconf_cleanup(void)
struct net_device *dev;
int i;
+ rcu_assign_pointer(ipv6_dev_get_saddr_hook, NULL);
+ synchronize_rcu();
+
unregister_netdevice_notifier(&ipv6_dev_notf);
unregister_pernet_subsys(&addrconf_ops);
ipv6_addr_label_cleanup();
--- /dev/null
+++ b/net/ipv6/inet6_stubs.c
@@ -0,0 +1,27 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <net/ipv6.h>
+
+int (*ipv6_dev_get_saddr_hook)(struct net *net, struct net_device *dev,
+ const struct in6_addr *daddr, unsigned int srcprefs,
+ struct in6_addr *saddr);
+
+EXPORT_SYMBOL(ipv6_dev_get_saddr_hook);
+
+int ipv6_dev_get_saddr(struct net *net, struct net_device *dst_dev,
+ const struct in6_addr *daddr, unsigned int prefs,
+ struct in6_addr *saddr)
+{
+ typeof(ipv6_dev_get_saddr_hook) dev_get_saddr = rcu_dereference(ipv6_dev_get_saddr_hook);
+
+ if (dev_get_saddr)
+ return dev_get_saddr(net, dst_dev, daddr, prefs, saddr);
+
+ return -EADDRNOTAVAIL;
+}
+EXPORT_SYMBOL(ipv6_dev_get_saddr);
+

View File

@ -0,0 +1,20 @@
--- a/drivers/net/pppoe.c
+++ b/drivers/net/pppoe.c
@@ -856,7 +856,7 @@ static int pppoe_sendmsg(struct kiocb *i
goto end;
- skb = sock_wmalloc(sk, total_len + dev->hard_header_len + 32,
+ skb = sock_wmalloc(sk, total_len + dev->hard_header_len + 32 + NET_SKB_PAD,
0, GFP_KERNEL);
if (!skb) {
error = -ENOMEM;
@@ -864,7 +864,7 @@ static int pppoe_sendmsg(struct kiocb *i
}
/* Reserve space for headers. */
- skb_reserve(skb, dev->hard_header_len);
+ skb_reserve(skb, dev->hard_header_len + NET_SKB_PAD);
skb_reset_network_header(skb);
skb->dev = dev;

View File

@ -0,0 +1,11 @@
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -142,7 +142,7 @@ static inline bool dev_xmit_complete(int
*/
#if defined(CONFIG_WLAN) || defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE)
-# if defined(CONFIG_MAC80211_MESH)
+# if 1 || defined(CONFIG_MAC80211_MESH)
# define LL_MAX_HEADER 128
# else
# define LL_MAX_HEADER 96

View File

@ -0,0 +1,12 @@
--- a/include/linux/atm.h
+++ b/include/linux/atm.h
@@ -139,6 +139,9 @@ struct atm_trafprm {
int min_pcr; /* minimum PCR in cells per second */
int max_cdv; /* maximum CDV in microseconds */
int max_sdu; /* maximum SDU in bytes */
+ int scr; /* sustained rate in cells per second */
+ int mbs; /* maximum burst size (MBS) in cells */
+ int cdv; /* Cell delay varition */
/* extra params for ABR */
unsigned int icr; /* Initial Cell Rate (24-bit) */
unsigned int tbe; /* Transient Buffer Exposure (24-bit) */

View File

@ -0,0 +1,25 @@
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -13,6 +13,12 @@ menuconfig PHYLIB
if PHYLIB
+config SWCONFIG
+ tristate "Switch configuration API"
+ ---help---
+ Switch configuration API using netlink. This allows
+ you to configure the VLAN features of certain switches.
+
comment "MII PHY device drivers"
config MARVELL_PHY
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -3,6 +3,7 @@
libphy-objs := phy.o phy_device.o mdio_bus.o
obj-$(CONFIG_PHYLIB) += libphy.o
+obj-$(CONFIG_SWCONFIG) += swconfig.o
obj-$(CONFIG_MARVELL_PHY) += marvell.o
obj-$(CONFIG_DAVICOM_PHY) += davicom.o
obj-$(CONFIG_CICADA_PHY) += cicada.o

View File

@ -0,0 +1,72 @@
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -299,6 +299,50 @@ int phy_ethtool_gset(struct phy_device *
}
EXPORT_SYMBOL(phy_ethtool_gset);
+int phy_ethtool_ioctl(struct phy_device *phydev, void *useraddr)
+{
+ u32 cmd;
+ int tmp;
+ struct ethtool_cmd ecmd = { ETHTOOL_GSET };
+ struct ethtool_value edata = { ETHTOOL_GLINK };
+
+ if (get_user(cmd, (u32 *) useraddr))
+ return -EFAULT;
+
+ switch (cmd) {
+ case ETHTOOL_GSET:
+ phy_ethtool_gset(phydev, &ecmd);
+ if (copy_to_user(useraddr, &ecmd, sizeof(ecmd)))
+ return -EFAULT;
+ return 0;
+
+ case ETHTOOL_SSET:
+ if (copy_from_user(&ecmd, useraddr, sizeof(ecmd)))
+ return -EFAULT;
+ return phy_ethtool_sset(phydev, &ecmd);
+
+ case ETHTOOL_NWAY_RST:
+ /* if autoneg is off, it's an error */
+ tmp = phy_read(phydev, MII_BMCR);
+ if (tmp & BMCR_ANENABLE) {
+ tmp |= (BMCR_ANRESTART);
+ phy_write(phydev, MII_BMCR, tmp);
+ return 0;
+ }
+ return -EINVAL;
+
+ case ETHTOOL_GLINK:
+ edata.data = (phy_read(phydev,
+ MII_BMSR) & BMSR_LSTATUS) ? 1 : 0;
+ if (copy_to_user(useraddr, &edata, sizeof(edata)))
+ return -EFAULT;
+ return 0;
+ }
+
+ return -EOPNOTSUPP;
+}
+EXPORT_SYMBOL(phy_ethtool_ioctl);
+
/**
* phy_mii_ioctl - generic PHY MII ioctl interface
* @phydev: the phy_device struct
@@ -474,7 +518,7 @@ static void phy_force_reduction(struct p
int idx;
idx = phy_find_setting(phydev->speed, phydev->duplex);
-
+
idx++;
idx = phy_find_valid(idx, phydev->supported);
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -510,6 +510,7 @@ void phy_start_machine(struct phy_device
void phy_stop_machine(struct phy_device *phydev);
int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd);
int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd);
+int phy_ethtool_ioctl(struct phy_device *phydev, void *useraddr);
int phy_mii_ioctl(struct phy_device *phydev,
struct ifreq *ifr, int cmd);
int phy_start_interrupts(struct phy_device *phydev);

View File

@ -0,0 +1,45 @@
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -388,9 +388,18 @@ struct phy_driver {
*/
int (*config_aneg)(struct phy_device *phydev);
+ /* Determine if autonegotiation is done */
+ int (*aneg_done)(struct phy_device *phydev);
+
/* Determines the negotiated speed and duplex */
int (*read_status)(struct phy_device *phydev);
+ /*
+ * Update the value in phydev->link to reflect the
+ * current link value
+ */
+ int (*update_link)(struct phy_device *phydev);
+
/* Clears any pending interrupts */
int (*ack_interrupt)(struct phy_device *phydev);
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -719,6 +719,9 @@ int genphy_update_link(struct phy_device
{
int status;
+ if (phydev->drv->update_link)
+ return phydev->drv->update_link(phydev);
+
/* Do a fake read */
status = phy_read(phydev, MII_BMSR);
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -106,6 +106,9 @@ static inline int phy_aneg_done(struct p
{
int retval;
+ if (phydev->drv->aneg_done)
+ return phydev->drv->aneg_done(phydev);
+
retval = phy_read(phydev, MII_BMSR);
return (retval < 0) ? retval : (retval & BMSR_ANEGCOMPLETE);

View File

@ -0,0 +1,26 @@
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -98,6 +98,13 @@ config MICREL_PHY
---help---
Supports the KSZ9021, VSC8201, KS8001 PHYs.
+config ADM6996_PHY
+ tristate "Driver for ADM6996 switches"
+ select SWCONFIG
+ ---help---
+ Currently supports the ADM6996FC and ADM6996M switches.
+ Support for FC is very limited.
+
config FIXED_PHY
bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
depends on PHYLIB=y
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_VITESSE_PHY) += vitesse.o
obj-$(CONFIG_BROADCOM_PHY) += broadcom.o
obj-$(CONFIG_BCM63XX_PHY) += bcm63xx.o
obj-$(CONFIG_ICPLUS_PHY) += icplus.o
+obj-$(CONFIG_ADM6996_PHY) += adm6996.o
obj-$(CONFIG_REALTEK_PHY) += realtek.o
obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o
obj-$(CONFIG_FIXED_PHY) += fixed.o

View File

@ -0,0 +1,63 @@
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -149,6 +149,18 @@ int phy_scan_fixups(struct phy_device *p
}
EXPORT_SYMBOL(phy_scan_fixups);
+static int generic_receive_skb(struct sk_buff *skb)
+{
+ skb->protocol = eth_type_trans(skb, skb->dev);
+ return netif_receive_skb(skb);
+}
+
+static int generic_rx(struct sk_buff *skb)
+{
+ skb->protocol = eth_type_trans(skb, skb->dev);
+ return netif_rx(skb);
+}
+
static struct phy_device* phy_device_create(struct mii_bus *bus,
int addr, int phy_id)
{
@@ -180,6 +192,8 @@ static struct phy_device* phy_device_cre
dev_set_name(&dev->dev, PHY_ID_FMT, bus->id, addr);
dev->state = PHY_DOWN;
+ dev->netif_receive_skb = &generic_receive_skb;
+ dev->netif_rx = &generic_rx;
mutex_init(&dev->lock);
INIT_DELAYED_WORK(&dev->state_queue, phy_state_machine);
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -334,6 +334,20 @@ struct phy_device {
void (*adjust_link)(struct net_device *dev);
void (*adjust_state)(struct net_device *dev);
+
+ /*
+ * By default these point to the original functions
+ * with the same name. adding them to the phy_device
+ * allows the phy driver to override them for packet
+ * mangling if the ethernet driver supports it
+ * This is required to support some really horrible
+ * switches such as the Marvell 88E6060
+ */
+ int (*netif_receive_skb)(struct sk_buff *skb);
+ int (*netif_rx)(struct sk_buff *skb);
+
+ /* alignment offset for packets */
+ int pkt_align;
};
#define to_phy_device(d) container_of(d, struct phy_device, dev)
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1153,6 +1153,7 @@ struct net_device {
void *ax25_ptr; /* AX.25 specific data */
struct wireless_dev *ieee80211_ptr; /* IEEE 802.11 specific data,
assign before registering */
+ void *phy_ptr; /* PHY device specific data */
/*
* Cache lines mostly used on receive path (including eth_type_trans())

View File

@ -0,0 +1,22 @@
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -105,6 +105,9 @@ config ADM6996_PHY
Currently supports the ADM6996FC and ADM6996M switches.
Support for FC is very limited.
+config MVSWITCH_PHY
+ tristate "Driver for Marvell 88E6060 switches"
+
config FIXED_PHY
bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
depends on PHYLIB=y
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_BROADCOM_PHY) += broadcom.o
obj-$(CONFIG_BCM63XX_PHY) += bcm63xx.o
obj-$(CONFIG_ICPLUS_PHY) += icplus.o
obj-$(CONFIG_ADM6996_PHY) += adm6996.o
+obj-$(CONFIG_MVSWITCH_PHY) += mvswitch.o
obj-$(CONFIG_REALTEK_PHY) += realtek.o
obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o
obj-$(CONFIG_FIXED_PHY) += fixed.o

View File

@ -0,0 +1,23 @@
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -108,6 +108,10 @@ config ADM6996_PHY
config MVSWITCH_PHY
tristate "Driver for Marvell 88E6060 switches"
+config IP17XX_PHY
+ tristate "Driver for IC+ IP17xx switches"
+ select SWCONFIG
+
config FIXED_PHY
bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
depends on PHYLIB=y
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_BCM63XX_PHY) += bcm63xx.o
obj-$(CONFIG_ICPLUS_PHY) += icplus.o
obj-$(CONFIG_ADM6996_PHY) += adm6996.o
obj-$(CONFIG_MVSWITCH_PHY) += mvswitch.o
+obj-$(CONFIG_IP17XX_PHY) += ip17xx.o
obj-$(CONFIG_REALTEK_PHY) += realtek.o
obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o
obj-$(CONFIG_FIXED_PHY) += fixed.o

View File

@ -0,0 +1,23 @@
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -112,6 +112,10 @@ config IP17XX_PHY
tristate "Driver for IC+ IP17xx switches"
select SWCONFIG
+config AR8216_PHY
+ tristate "Driver for Atheros AR8216 switches"
+ select SWCONFIG
+
config FIXED_PHY
bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
depends on PHYLIB=y
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -18,6 +18,7 @@ obj-$(CONFIG_ADM6996_PHY) += adm6996.o
obj-$(CONFIG_MVSWITCH_PHY) += mvswitch.o
obj-$(CONFIG_IP17XX_PHY) += ip17xx.o
obj-$(CONFIG_REALTEK_PHY) += realtek.o
+obj-$(CONFIG_AR8216_PHY) += ar8216.o
obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o
obj-$(CONFIG_FIXED_PHY) += fixed.o
obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o

View File

@ -0,0 +1,23 @@
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -116,6 +116,10 @@ config AR8216_PHY
tristate "Driver for Atheros AR8216 switches"
select SWCONFIG
+config RTL8306_PHY
+ tristate "Driver for Realtek RTL8306S switches"
+ select SWCONFIG
+
config FIXED_PHY
bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
depends on PHYLIB=y
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -19,6 +19,7 @@ obj-$(CONFIG_MVSWITCH_PHY) += mvswitch.o
obj-$(CONFIG_IP17XX_PHY) += ip17xx.o
obj-$(CONFIG_REALTEK_PHY) += realtek.o
obj-$(CONFIG_AR8216_PHY) += ar8216.o
+obj-$(CONFIG_RTL8306_PHY) += rtl8306.o
obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o
obj-$(CONFIG_FIXED_PHY) += fixed.o
obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o

View File

@ -0,0 +1,44 @@
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -158,4 +158,29 @@ config MDIO_OCTEON
If in doubt, say Y.
+config RTL8366_SMI
+ tristate "Driver for the RTL8366 SMI interface"
+ depends on GENERIC_GPIO
+ ---help---
+ This module implements the SMI interface protocol which is used
+ by some RTL8366 ethernet switch devices via the generic GPIO API.
+
+if RTL8366_SMI
+
+config RTL8366S_PHY
+ tristate "Driver for the Realtek RTL8366S switch"
+ select SWCONFIG
+
+config RTL8366RB_PHY
+ tristate "Driver for the Realtek RTL8366RB switch"
+ select SWCONFIG
+
+config RTL8366S_PHY_DEBUG_FS
+ bool "RTL8366 switch driver DEBUG_FS support"
+ depends on RTL8366S_PHY || RTL8366RB_PHY
+ depends on DEBUG_FS
+ default n
+
+endif # RTL8366_SMI
+
endif # PHYLIB
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -20,6 +20,9 @@ obj-$(CONFIG_IP17XX_PHY) += ip17xx.o
obj-$(CONFIG_REALTEK_PHY) += realtek.o
obj-$(CONFIG_AR8216_PHY) += ar8216.o
obj-$(CONFIG_RTL8306_PHY) += rtl8306.o
+obj-$(CONFIG_RTL8366_SMI) += rtl8366_smi.o
+obj-$(CONFIG_RTL8366S_PHY) += rtl8366s.o
+obj-$(CONFIG_RTL8366RB_PHY) += rtl8366rb.o
obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o
obj-$(CONFIG_FIXED_PHY) += fixed.o
obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o

View File

@ -0,0 +1,154 @@
--- a/drivers/net/wireless/hostap/hostap_ap.c
+++ b/drivers/net/wireless/hostap/hostap_ap.c
@@ -2338,13 +2338,13 @@ int prism2_ap_get_sta_qual(local_info_t
addr[count].sa_family = ARPHRD_ETHER;
memcpy(addr[count].sa_data, sta->addr, ETH_ALEN);
if (sta->last_rx_silence == 0)
- qual[count].qual = sta->last_rx_signal < 27 ?
- 0 : (sta->last_rx_signal - 27) * 92 / 127;
+ qual[count].qual = (sta->last_rx_signal - 156) == 0 ?
+ 0 : (sta->last_rx_signal - 156) * 92 / 64;
else
- qual[count].qual = sta->last_rx_signal -
- sta->last_rx_silence - 35;
- qual[count].level = HFA384X_LEVEL_TO_dBm(sta->last_rx_signal);
- qual[count].noise = HFA384X_LEVEL_TO_dBm(sta->last_rx_silence);
+ qual[count].qual = (sta->last_rx_signal -
+ sta->last_rx_silence) * 92 / 64;
+ qual[count].level = sta->last_rx_signal;
+ qual[count].noise = sta->last_rx_silence;
qual[count].updated = sta->last_rx_updated;
sta->last_rx_updated = IW_QUAL_DBM;
@@ -2410,13 +2410,13 @@ int prism2_ap_translate_scan(struct net_
memset(&iwe, 0, sizeof(iwe));
iwe.cmd = IWEVQUAL;
if (sta->last_rx_silence == 0)
- iwe.u.qual.qual = sta->last_rx_signal < 27 ?
- 0 : (sta->last_rx_signal - 27) * 92 / 127;
+ iwe.u.qual.qual = (sta->last_rx_signal -156) == 0 ?
+ 0 : (sta->last_rx_signal - 156) * 92 / 64;
else
- iwe.u.qual.qual = sta->last_rx_signal -
- sta->last_rx_silence - 35;
- iwe.u.qual.level = HFA384X_LEVEL_TO_dBm(sta->last_rx_signal);
- iwe.u.qual.noise = HFA384X_LEVEL_TO_dBm(sta->last_rx_silence);
+ iwe.u.qual.qual = (sta->last_rx_signal -
+ sta->last_rx_silence) * 92 / 64;
+ iwe.u.qual.level = sta->last_rx_signal;
+ iwe.u.qual.noise = sta->last_rx_silence;
iwe.u.qual.updated = sta->last_rx_updated;
iwe.len = IW_EV_QUAL_LEN;
current_ev = iwe_stream_add_event(info, current_ev, end_buf,
--- a/drivers/net/wireless/hostap/hostap_config.h
+++ b/drivers/net/wireless/hostap/hostap_config.h
@@ -45,4 +45,9 @@
*/
/* #define PRISM2_NO_STATION_MODES */
+/* Enable TX power Setting functions
+ * (min att = -128 , max att = 127)
+ */
+#define RAW_TXPOWER_SETTING
+
#endif /* HOSTAP_CONFIG_H */
--- a/drivers/net/wireless/hostap/hostap.h
+++ b/drivers/net/wireless/hostap/hostap.h
@@ -90,6 +90,7 @@ extern const struct iw_handler_def hosta
extern const struct ethtool_ops prism2_ethtool_ops;
int hostap_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
+int hostap_restore_power(struct net_device *dev);
#endif /* HOSTAP_H */
--- a/drivers/net/wireless/hostap/hostap_hw.c
+++ b/drivers/net/wireless/hostap/hostap_hw.c
@@ -932,6 +932,7 @@ static int hfa384x_set_rid(struct net_de
prism2_hw_reset(dev);
}
+ hostap_restore_power(dev);
return res;
}
--- a/drivers/net/wireless/hostap/hostap_info.c
+++ b/drivers/net/wireless/hostap/hostap_info.c
@@ -433,6 +433,11 @@ static void handle_info_queue_linkstatus
}
/* Get BSSID if we have a valid AP address */
+
+ if ( val == HFA384X_LINKSTATUS_CONNECTED ||
+ val == HFA384X_LINKSTATUS_DISCONNECTED )
+ hostap_restore_power(local->dev);
+
if (connected) {
netif_carrier_on(local->dev);
netif_carrier_on(local->ddev);
--- a/drivers/net/wireless/hostap/hostap_ioctl.c
+++ b/drivers/net/wireless/hostap/hostap_ioctl.c
@@ -1477,23 +1477,20 @@ static int prism2_txpower_hfa386x_to_dBm
val = 255;
tmp = val;
- tmp >>= 2;
- return -12 - tmp;
+ return tmp;
}
static u16 prism2_txpower_dBm_to_hfa386x(int val)
{
signed char tmp;
- if (val > 20)
- return 128;
- else if (val < -43)
+ if (val > 127)
return 127;
+ else if (val < -128)
+ return 128;
tmp = val;
- tmp = -12 - tmp;
- tmp <<= 2;
return (unsigned char) tmp;
}
@@ -4056,3 +4053,35 @@ int hostap_ioctl(struct net_device *dev,
return ret;
}
+
+/* BUG FIX: Restore power setting value when lost due to F/W bug */
+
+int hostap_restore_power(struct net_device *dev)
+{
+ struct hostap_interface *iface = netdev_priv(dev);
+ local_info_t *local = iface->local;
+
+ u16 val;
+ int ret = 0;
+
+ if (local->txpower_type == PRISM2_TXPOWER_OFF) {
+ val = 0xff; /* use all standby and sleep modes */
+ ret = local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF,
+ HFA386X_CR_A_D_TEST_MODES2,
+ &val, NULL);
+ }
+
+#ifdef RAW_TXPOWER_SETTING
+ if (local->txpower_type == PRISM2_TXPOWER_FIXED) {
+ val = HFA384X_TEST_CFG_BIT_ALC;
+ local->func->cmd(dev, HFA384X_CMDCODE_TEST |
+ (HFA384X_TEST_CFG_BITS << 8), 0, &val, NULL);
+ val = prism2_txpower_dBm_to_hfa386x(local->txpower);
+ ret = (local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF,
+ HFA386X_CR_MANUAL_TX_POWER, &val, NULL));
+ }
+#endif /* RAW_TXPOWER_SETTING */
+ return (ret ? -EOPNOTSUPP : 0);
+}
+
+EXPORT_SYMBOL(hostap_restore_power);

View File

@ -0,0 +1,43 @@
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -62,6 +62,12 @@ config XEN_PCIDEV_FE_DEBUG
When in doubt, say N.
+config PCI_DISABLE_COMMON_QUIRKS
+ bool "PCI disable common quirks"
+ depends on PCI
+ help
+ If you don't know what to do here, say N.
+
config HT_IRQ
bool "Interrupts on hypertransport devices"
default y
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -104,6 +104,7 @@ static void __devinit quirk_mmio_always_
}
DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, quirk_mmio_always_on);
+#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS
/* The Mellanox Tavor device gives false positive parity errors
* Mark this device with a broken_parity_status, to allow
* PCI scanning code to "skip" this now blacklisted device.
@@ -1989,7 +1990,9 @@ static void __devinit fixup_rev1_53c810(
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
+#endif /* !CONFIG_PCI_DISABLE_COMMON_QUIRKS */
+#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS
/* Enable 1k I/O space granularity on the Intel P64H2 */
static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev)
{
@@ -2665,6 +2668,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AT
quirk_msi_intx_disable_bug);
#endif /* CONFIG_PCI_MSI */
+#endif /* !CONFIG_PCI_DISABLE_COMMON_QUIRKS */
/* Allow manual resource allocation for PCI hotplug bridges
* via pci=hpmemsize=nnM and pci=hpiosize=nnM parameters. For

View File

@ -0,0 +1,18 @@
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -429,6 +429,8 @@ reset_needed:
}
EXPORT_SYMBOL_GPL(uhci_check_and_reset_hc);
+#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS
+
static inline int io_type_enabled(struct pci_dev *pdev, unsigned int mask)
{
u16 cmd;
@@ -883,3 +885,5 @@ static void __devinit quirk_usb_early_ha
quirk_usb_handoff_xhci(pdev);
}
DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_usb_early_handoff);
+
+#endif

View File

@ -0,0 +1,84 @@
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -651,6 +651,71 @@ int __usb_get_extra_descriptor(char *buf
}
EXPORT_SYMBOL_GPL(__usb_get_extra_descriptor);
+static struct usb_device *match_device_name(struct usb_device *dev,
+ const char *name)
+{
+ struct usb_device *ret_dev = NULL;
+ int child;
+
+ dev_dbg(&dev->dev, "check for name %s ...\n", name);
+
+ /* see if this device matches */
+ if (strcmp(dev_name(&dev->dev), name) == 0 ) {
+ dev_dbg(&dev->dev, "matched this device!\n");
+ ret_dev = usb_get_dev(dev);
+ goto exit;
+ }
+
+ /* look through all of the children of this device */
+ for (child = 0; child < dev->maxchild; ++child) {
+ if (dev->children[child]) {
+ usb_lock_device(dev->children[child]);
+ ret_dev = match_device_name(dev->children[child], name);
+ usb_unlock_device(dev->children[child]);
+ if (ret_dev)
+ goto exit;
+ }
+ }
+exit:
+ return ret_dev;
+}
+
+/**
+ * usb_find_device_by_name - find a specific usb device in the system
+ * @name: the name of the device to find
+ *
+ * Returns a pointer to a struct usb_device if such a specified usb
+ * device is present in the system currently. The usage count of the
+ * device will be incremented if a device is found. Make sure to call
+ * usb_put_dev() when the caller is finished with the device.
+ *
+ * If a device with the specified bus id is not found, NULL is returned.
+ */
+struct usb_device *usb_find_device_by_name(const char *name)
+{
+ struct list_head *buslist;
+ struct usb_bus *bus;
+ struct usb_device *dev = NULL;
+
+ mutex_lock(&usb_bus_list_lock);
+ for (buslist = usb_bus_list.next;
+ buslist != &usb_bus_list;
+ buslist = buslist->next) {
+ bus = container_of(buslist, struct usb_bus, bus_list);
+ if (!bus->root_hub)
+ continue;
+ usb_lock_device(bus->root_hub);
+ dev = match_device_name(bus->root_hub, name);
+ usb_unlock_device(bus->root_hub);
+ if (dev)
+ goto exit;
+ }
+exit:
+ mutex_unlock(&usb_bus_list_lock);
+ return dev;
+}
+EXPORT_SYMBOL_GPL(usb_find_device_by_name);
+
/**
* usb_alloc_coherent - allocate dma-consistent buffer for URB_NO_xxx_DMA_MAP
* @dev: device the buffer will be used with
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -513,6 +513,7 @@ extern int usb_lock_device_for_reset(str
extern int usb_reset_device(struct usb_device *dev);
extern void usb_queue_reset_device(struct usb_interface *dev);
+extern struct usb_device *usb_find_device_by_name(const char *name);
/* USB autosuspend and autoresume */
#ifdef CONFIG_USB_SUSPEND

View File

@ -0,0 +1,18 @@
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -453,4 +453,8 @@ config LEDS_TRIGGER_DEFAULT_ON
comment "iptables trigger is under Netfilter config (LED target)"
depends on LEDS_TRIGGERS
+config LEDS_TRIGGER_MORSE
+ tristate "LED Morse Trigger"
+ depends on LEDS_TRIGGERS
+
endif # NEW_LEDS
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -54,3 +54,4 @@ obj-$(CONFIG_LEDS_TRIGGER_HEARTBEAT) +=
obj-$(CONFIG_LEDS_TRIGGER_BACKLIGHT) += ledtrig-backlight.o
obj-$(CONFIG_LEDS_TRIGGER_GPIO) += ledtrig-gpio.o
obj-$(CONFIG_LEDS_TRIGGER_DEFAULT_ON) += ledtrig-default-on.o
+obj-$(CONFIG_LEDS_TRIGGER_MORSE) += ledtrig-morse.o

View File

@ -0,0 +1,43 @@
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -457,4 +457,11 @@ config LEDS_TRIGGER_MORSE
tristate "LED Morse Trigger"
depends on LEDS_TRIGGERS
+config LEDS_TRIGGER_NETDEV
+ tristate "LED Netdev Trigger"
+ depends on NET && LEDS_TRIGGERS
+ help
+ This allows LEDs to be controlled by network device activity.
+ If unsure, say Y.
+
endif # NEW_LEDS
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -55,3 +55,4 @@ obj-$(CONFIG_LEDS_TRIGGER_BACKLIGHT) +=
obj-$(CONFIG_LEDS_TRIGGER_GPIO) += ledtrig-gpio.o
obj-$(CONFIG_LEDS_TRIGGER_DEFAULT_ON) += ledtrig-default-on.o
obj-$(CONFIG_LEDS_TRIGGER_MORSE) += ledtrig-morse.o
+obj-$(CONFIG_LEDS_TRIGGER_NETDEV) += ledtrig-netdev.o
--- a/drivers/leds/ledtrig-netdev.c
+++ b/drivers/leds/ledtrig-netdev.c
@@ -307,8 +307,9 @@ done:
static void netdev_trig_timer(unsigned long arg)
{
struct led_netdev_data *trigger_data = (struct led_netdev_data *)arg;
- const struct net_device_stats *dev_stats;
+ struct rtnl_link_stats64 *dev_stats;
unsigned new_activity;
+ struct rtnl_link_stats64 temp;
write_lock(&trigger_data->lock);
@@ -318,7 +319,7 @@ static void netdev_trig_timer(unsigned l
goto no_restart;
}
- dev_stats = dev_get_stats(trigger_data->net_dev);
+ dev_stats = dev_get_stats(trigger_data->net_dev, &temp);
new_activity =
((trigger_data->mode & MODE_TX) ? dev_stats->tx_packets : 0) +
((trigger_data->mode & MODE_RX) ? dev_stats->rx_packets : 0);

View File

@ -0,0 +1,21 @@
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -464,4 +464,11 @@ config LEDS_TRIGGER_NETDEV
This allows LEDs to be controlled by network device activity.
If unsure, say Y.
+config LEDS_TRIGGER_USBDEV
+ tristate "LED USB device Trigger"
+ depends on USB && LEDS_TRIGGERS
+ help
+ This allows LEDs to be controlled by the presence/activity of
+ an USB device. If unsure, say N.
+
endif # NEW_LEDS
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -56,3 +56,4 @@ obj-$(CONFIG_LEDS_TRIGGER_GPIO) += ledt
obj-$(CONFIG_LEDS_TRIGGER_DEFAULT_ON) += ledtrig-default-on.o
obj-$(CONFIG_LEDS_TRIGGER_MORSE) += ledtrig-morse.o
obj-$(CONFIG_LEDS_TRIGGER_NETDEV) += ledtrig-netdev.o
+obj-$(CONFIG_LEDS_TRIGGER_USBDEV) += ledtrig-usbdev.o

View File

@ -0,0 +1,30 @@
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -527,4 +527,20 @@ config INPUT_XEN_KBDDEV_FRONTEND
To compile this driver as a module, choose M here: the
module will be called xen-kbdfront.
+config INPUT_GPIO_BUTTONS
+ tristate "Polled GPIO buttons interface"
+ depends on GENERIC_GPIO
+ select INPUT_POLLDEV
+ help
+ This driver implements support for buttons connected
+ to GPIO pins of various CPUs (and some other chips).
+
+ Say Y here if your device has buttons connected
+ directly to such GPIO pins. Your board-specific
+ setup logic must also provide a platform device,
+ with configuration data saying which GPIOs are used.
+
+ To compile this driver as a module, choose M here: the
+ module will be called gpio-buttons.
+
endif
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -49,3 +49,4 @@ obj-$(CONFIG_INPUT_WISTRON_BTNS) += wist
obj-$(CONFIG_INPUT_WM831X_ON) += wm831x-on.o
obj-$(CONFIG_INPUT_XEN_KBDDEV_FRONTEND) += xen-kbdfront.o
obj-$(CONFIG_INPUT_YEALINK) += yealink.o
+obj-$(CONFIG_INPUT_GPIO_BUTTONS) += gpio_buttons.o

View File

@ -0,0 +1,27 @@
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -511,6 +511,14 @@ config NSC_GPIO
pc8736x_gpio drivers. If those drivers are built as
modules, this one will be too, named nsc_gpio
+config GPIO_DEVICE
+ tristate "GPIO device support"
+ depends on GENERIC_GPIO
+ help
+ Say Y to enable Linux GPIO device support. This allows control of
+ GPIO pins using a character device
+
+
config RAW_DRIVER
tristate "RAW driver (/dev/raw/rawN)"
depends on BLOCK
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -47,6 +47,7 @@ obj-$(CONFIG_NWFLASH) += nwflash.o
obj-$(CONFIG_SCx200_GPIO) += scx200_gpio.o
obj-$(CONFIG_PC8736x_GPIO) += pc8736x_gpio.o
obj-$(CONFIG_NSC_GPIO) += nsc_gpio.o
+obj-$(CONFIG_GPIO_DEVICE) += gpio_dev.o
obj-$(CONFIG_GPIO_TB0219) += tb0219.o
obj-$(CONFIG_TELCLOCK) += tlclk.o

View File

@ -0,0 +1,250 @@
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -719,6 +719,15 @@ config RTC_DRV_NUC900
If you say yes here you get support for the RTC subsystem of the
NUC910/NUC920 used in embedded systems.
+config RTC_DRV_RTC7301
+ tristate "Epson RTC-7301 SF/DG"
+ help
+ If you say Y here you will get support for the
+ Epson RTC-7301 SF/DG RTC chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-7301.
+
comment "on-CPU RTC drivers"
config RTC_DRV_DAVINCI
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -86,6 +86,7 @@ obj-$(CONFIG_RTC_DRV_RP5C01) += rtc-rp5c
obj-$(CONFIG_RTC_DRV_RS5C313) += rtc-rs5c313.o
obj-$(CONFIG_RTC_DRV_RS5C348) += rtc-rs5c348.o
obj-$(CONFIG_RTC_DRV_RS5C372) += rtc-rs5c372.o
+obj-$(CONFIG_RTC_DRV_RTC7301) += rtc-rtc7301.o
obj-$(CONFIG_RTC_DRV_RV3029C2) += rtc-rv3029c2.o
obj-$(CONFIG_RTC_DRV_RX8025) += rtc-rx8025.o
obj-$(CONFIG_RTC_DRV_RX8581) += rtc-rx8581.o
--- /dev/null
+++ b/drivers/rtc/rtc-rtc7301.c
@@ -0,0 +1,219 @@
+/*
+ * Driver for Epson RTC-7301SF/DG
+ *
+ * Copyright (C) 2009 Jose Vasconcellos
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/rtc.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/bcd.h>
+
+#define RTC_NAME "rtc7301"
+#define RTC_VERSION "0.1"
+
+/* Epson RTC-7301 register addresses */
+#define RTC7301_SEC 0x00
+#define RTC7301_SEC10 0x01
+#define RTC7301_MIN 0x02
+#define RTC7301_MIN10 0x03
+#define RTC7301_HOUR 0x04
+#define RTC7301_HOUR10 0x05
+#define RTC7301_WEEKDAY 0x06
+#define RTC7301_DAY 0x07
+#define RTC7301_DAY10 0x08
+#define RTC7301_MON 0x09
+#define RTC7301_MON10 0x0A
+#define RTC7301_YEAR 0x0B
+#define RTC7301_YEAR10 0x0C
+#define RTC7301_YEAR100 0x0D
+#define RTC7301_YEAR1000 0x0E
+#define RTC7301_CTRLREG 0x0F
+
+static uint8_t __iomem *rtc7301_base;
+
+#define read_reg(offset) (readb(rtc7301_base + offset) & 0xf)
+#define write_reg(offset, data) writeb(data, rtc7301_base + (offset))
+
+#define rtc7301_isbusy() (read_reg(RTC7301_CTRLREG) & 1)
+
+static void rtc7301_init_settings(void)
+{
+ int i;
+
+ write_reg(RTC7301_CTRLREG, 2);
+ write_reg(RTC7301_YEAR1000, 2);
+ udelay(122);
+
+ /* bank 1 */
+ write_reg(RTC7301_CTRLREG, 6);
+ for (i=0; i<15; i++)
+ write_reg(i, 0);
+
+ /* bank 2 */
+ write_reg(RTC7301_CTRLREG, 14);
+ for (i=0; i<15; i++)
+ write_reg(i, 0);
+ write_reg(RTC7301_CTRLREG, 0);
+}
+
+static int rtc7301_get_datetime(struct device *dev, struct rtc_time *dt)
+{
+ int cnt;
+ uint8_t buf[16];
+
+ cnt = 0;
+ while (rtc7301_isbusy()) {
+ udelay(244);
+ if (cnt++ > 100) {
+ dev_err(dev, "%s: timeout error %x\n", __func__, rtc7301_base[RTC7301_CTRLREG]);
+ return -EIO;
+ }
+ }
+
+ for (cnt=0; cnt<16; cnt++)
+ buf[cnt] = read_reg(cnt);
+
+ if (buf[RTC7301_SEC10] & 8) {
+ dev_err(dev, "%s: RTC not set\n", __func__);
+ return -EINVAL;
+ }
+
+ memset(dt, 0, sizeof(*dt));
+
+ dt->tm_sec = buf[RTC7301_SEC] + buf[RTC7301_SEC10]*10;
+ dt->tm_min = buf[RTC7301_MIN] + buf[RTC7301_MIN10]*10;
+ dt->tm_hour = buf[RTC7301_HOUR] + buf[RTC7301_HOUR10]*10;
+
+ dt->tm_mday = buf[RTC7301_DAY] + buf[RTC7301_DAY10]*10;
+ dt->tm_mon = buf[RTC7301_MON] + buf[RTC7301_MON10]*10 - 1;
+ dt->tm_year = buf[RTC7301_YEAR] + buf[RTC7301_YEAR10]*10 +
+ buf[RTC7301_YEAR100]*100 +
+ ((buf[RTC7301_YEAR1000] & 3)*1000) - 1900;
+
+ /* the rtc device may contain illegal values on power up
+ * according to the data sheet. make sure they are valid.
+ */
+
+ return rtc_valid_tm(dt);
+}
+
+static int rtc7301_set_datetime(struct device *dev, struct rtc_time *dt)
+{
+ int data;
+
+ data = dt->tm_year + 1900;
+ if (data >= 2100 || data < 1900)
+ return -EINVAL;
+
+ write_reg(RTC7301_CTRLREG, 2);
+ udelay(122);
+
+ data = bin2bcd(dt->tm_sec);
+ write_reg(RTC7301_SEC, data);
+ write_reg(RTC7301_SEC10, (data >> 4));
+
+ data = bin2bcd(dt->tm_min);
+ write_reg(RTC7301_MIN, data );
+ write_reg(RTC7301_MIN10, (data >> 4));
+
+ data = bin2bcd(dt->tm_hour);
+ write_reg(RTC7301_HOUR, data);
+ write_reg(RTC7301_HOUR10, (data >> 4));
+
+ data = bin2bcd(dt->tm_mday);
+ write_reg(RTC7301_DAY, data);
+ write_reg(RTC7301_DAY10, (data>> 4));
+
+ data = bin2bcd(dt->tm_mon + 1);
+ write_reg(RTC7301_MON, data);
+ write_reg(RTC7301_MON10, (data >> 4));
+
+ data = bin2bcd(dt->tm_year % 100);
+ write_reg(RTC7301_YEAR, data);
+ write_reg(RTC7301_YEAR10, (data >> 4));
+ data = bin2bcd((1900 + dt->tm_year) / 100);
+ write_reg(RTC7301_YEAR100, data);
+
+ data = bin2bcd(dt->tm_wday);
+ write_reg(RTC7301_WEEKDAY, data);
+
+ write_reg(RTC7301_CTRLREG, 0);
+
+ return 0;
+}
+
+static const struct rtc_class_ops rtc7301_rtc_ops = {
+ .read_time = rtc7301_get_datetime,
+ .set_time = rtc7301_set_datetime,
+};
+
+static int __devinit rtc7301_probe(struct platform_device *pdev)
+{
+ struct rtc_device *rtc;
+ struct resource *res;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENOENT;
+
+ rtc7301_base = ioremap_nocache(res->start, 0x1000 /*res->end - res->start + 1*/);
+ if (!rtc7301_base)
+ return -EINVAL;
+
+ rtc = rtc_device_register(RTC_NAME, &pdev->dev,
+ &rtc7301_rtc_ops, THIS_MODULE);
+ if (IS_ERR(rtc)) {
+ iounmap(rtc7301_base);
+ return PTR_ERR(rtc);
+ }
+
+ platform_set_drvdata(pdev, rtc);
+
+ rtc7301_init_settings();
+ return 0;
+}
+
+static int __devexit rtc7301_remove(struct platform_device *pdev)
+{
+ struct rtc_device *rtc = platform_get_drvdata(pdev);
+
+ if (rtc)
+ rtc_device_unregister(rtc);
+ if (rtc7301_base)
+ iounmap(rtc7301_base);
+ return 0;
+}
+
+static struct platform_driver rtc7301_driver = {
+ .driver = {
+ .name = RTC_NAME,
+ .owner = THIS_MODULE,
+ },
+ .probe = rtc7301_probe,
+ .remove = __devexit_p(rtc7301_remove),
+};
+
+static __init int rtc7301_init(void)
+{
+ return platform_driver_register(&rtc7301_driver);
+}
+module_init(rtc7301_init);
+
+static __exit void rtc7301_exit(void)
+{
+ platform_driver_unregister(&rtc7301_driver);
+}
+module_exit(rtc7301_exit);
+
+MODULE_DESCRIPTION("Epson 7301 RTC driver");
+MODULE_AUTHOR("Jose Vasconcellos <jvasco@verizon.net>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" RTC_NAME);
+MODULE_VERSION(RTC_VERSION);

View File

@ -0,0 +1,21 @@
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -125,6 +125,7 @@
#define FB_ACCEL_TRIDENT_BLADE3D 52 /* Trident Blade3D */
#define FB_ACCEL_TRIDENT_BLADEXP 53 /* Trident BladeXP */
#define FB_ACCEL_CIRRUS_ALPINE 53 /* Cirrus Logic 543x/544x/5480 */
+#define FB_ACCEL_GLAMO 50 /* SMedia Glamo */
#define FB_ACCEL_NEOMAGIC_NM2070 90 /* NeoMagic NM2070 */
#define FB_ACCEL_NEOMAGIC_NM2090 91 /* NeoMagic NM2090 */
#define FB_ACCEL_NEOMAGIC_NM2093 92 /* NeoMagic NM2093 */
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -144,6 +144,8 @@ header-y += generic_serial.h
header-y += genetlink.h
header-y += gfs2_ondisk.h
header-y += gigaset_dev.h
+header-y += glamofb.h
+header-y += glamo-engine.h
header-y += hdlc.h
header-y += hdlcdrv.h
header-y += hdreg.h

View File

@ -0,0 +1,60 @@
Fix spi-gpio for hotplug.
--mb
--- a/drivers/spi/spi-gpio.c
+++ b/drivers/spi/spi-gpio.c
@@ -255,7 +255,7 @@ static void spi_gpio_cleanup(struct spi_
spi_bitbang_cleanup(spi);
}
-static int __init spi_gpio_alloc(unsigned pin, const char *label, bool is_in)
+static int __devinit spi_gpio_alloc(unsigned pin, const char *label, bool is_in)
{
int value;
@@ -269,7 +269,7 @@ static int __init spi_gpio_alloc(unsigne
return value;
}
-static int __init
+static int __devinit
spi_gpio_request(struct spi_gpio_platform_data *pdata, const char *label,
u16 *res_flags)
{
@@ -311,7 +311,7 @@ done:
return value;
}
-static int __init spi_gpio_probe(struct platform_device *pdev)
+static int __devinit spi_gpio_probe(struct platform_device *pdev)
{
int status;
struct spi_master *master;
@@ -379,7 +379,7 @@ gpio_free:
return status;
}
-static int __exit spi_gpio_remove(struct platform_device *pdev)
+static int __devexit spi_gpio_remove(struct platform_device *pdev)
{
struct spi_gpio *spi_gpio;
struct spi_gpio_platform_data *pdata;
@@ -408,12 +408,13 @@ MODULE_ALIAS("platform:" DRIVER_NAME);
static struct platform_driver spi_gpio_driver = {
.driver.name = DRIVER_NAME,
.driver.owner = THIS_MODULE,
- .remove = __exit_p(spi_gpio_remove),
+ .probe = spi_gpio_probe,
+ .remove = __devexit_p(spi_gpio_remove),
};
static int __init spi_gpio_init(void)
{
- return platform_driver_probe(&spi_gpio_driver, spi_gpio_probe);
+ return platform_driver_register(&spi_gpio_driver);
}
module_init(spi_gpio_init);

View File

@ -0,0 +1,58 @@
Implement the SPI-GPIO delay function for busses that need speed limitation.
--mb
--- a/drivers/spi/spi-gpio.c
+++ b/drivers/spi/spi-gpio.c
@@ -21,6 +21,7 @@
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
+#include <linux/delay.h>
#include <linux/spi/spi.h>
#include <linux/spi/spi_bitbang.h>
@@ -69,6 +70,7 @@ struct spi_gpio {
* #define SPI_MOSI_GPIO 120
* #define SPI_SCK_GPIO 121
* #define SPI_N_CHIPSEL 4
+ * #undef NEED_SPIDELAY
* #include "spi-gpio.c"
*/
@@ -76,6 +78,7 @@ struct spi_gpio {
#define DRIVER_NAME "spi_gpio"
#define GENERIC_BITBANG /* vs tight inlines */
+#define NEED_SPIDELAY 1
/* all functions referencing these symbols must define pdata */
#define SPI_MISO_GPIO ((pdata)->miso)
@@ -120,12 +123,20 @@ static inline int getmiso(const struct s
#undef pdata
/*
- * NOTE: this clocks "as fast as we can". It "should" be a function of the
- * requested device clock. Software overhead means we usually have trouble
- * reaching even one Mbit/sec (except when we can inline bitops), so for now
- * we'll just assume we never need additional per-bit slowdowns.
+ * NOTE: to clock "as fast as we can", set spi_device.max_speed_hz
+ * and spi_transfer.speed_hz to 0.
+ * Otherwise this is a function of the requested device clock.
+ * Software overhead means we usually have trouble
+ * reaching even one Mbit/sec (except when we can inline bitops). So on small
+ * embedded devices with fast SPI slaves you usually don't need a delay.
*/
-#define spidelay(nsecs) do {} while (0)
+static inline void spidelay(unsigned nsecs)
+{
+#ifdef NEED_SPIDELAY
+ if (unlikely(nsecs))
+ ndelay(nsecs);
+#endif /* NEED_SPIDELAY */
+}
#include "spi-bitbang-txrx.h"

View File

@ -0,0 +1,373 @@
THIS CODE IS DEPRECATED.
Please use the new mainline SPI-GPIO driver, as of 2.6.29.
--mb
---
drivers/spi/Kconfig | 9 +
drivers/spi/Makefile | 1
drivers/spi/spi_gpio_old.c | 251 +++++++++++++++++++++++++++++++++++++++
include/linux/spi/spi_gpio_old.h | 73 +++++++++++
4 files changed, 334 insertions(+)
--- /dev/null
+++ b/include/linux/spi/spi_gpio_old.h
@@ -0,0 +1,73 @@
+/*
+ * spi_gpio interface to platform code
+ *
+ * Copyright (c) 2008 Piotr Skamruk
+ * Copyright (c) 2008 Michael Buesch
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef _LINUX_SPI_SPI_GPIO
+#define _LINUX_SPI_SPI_GPIO
+
+#include <linux/types.h>
+#include <linux/spi/spi.h>
+
+
+/**
+ * struct spi_gpio_platform_data - Data definitions for a SPI-GPIO device.
+ *
+ * This structure holds information about a GPIO-based SPI device.
+ *
+ * @pin_clk: The GPIO pin number of the CLOCK pin.
+ *
+ * @pin_miso: The GPIO pin number of the MISO pin.
+ *
+ * @pin_mosi: The GPIO pin number of the MOSI pin.
+ *
+ * @pin_cs: The GPIO pin number of the CHIPSELECT pin.
+ *
+ * @cs_activelow: If true, the chip is selected when the CS line is low.
+ *
+ * @no_spi_delay: If true, no delay is done in the lowlevel bitbanging.
+ * Note that doing no delay is not standards compliant,
+ * but it might be needed to speed up transfers on some
+ * slow embedded machines.
+ *
+ * @boardinfo_setup: This callback is called after the
+ * SPI master device was registered, but before the
+ * device is registered.
+ * @boardinfo_setup_data: Data argument passed to boardinfo_setup().
+ */
+struct spi_gpio_platform_data {
+ unsigned int pin_clk;
+ unsigned int pin_miso;
+ unsigned int pin_mosi;
+ unsigned int pin_cs;
+ bool cs_activelow;
+ bool no_spi_delay;
+ int (*boardinfo_setup)(struct spi_board_info *bi,
+ struct spi_master *master,
+ void *data);
+ void *boardinfo_setup_data;
+};
+
+/**
+ * SPI_GPIO_PLATDEV_NAME - The platform device name string.
+ *
+ * The name string that has to be used for platform_device_alloc
+ * when allocating a spi-gpio device.
+ */
+#define SPI_GPIO_PLATDEV_NAME "spi-gpio"
+
+/**
+ * spi_gpio_next_id - Get another platform device ID number.
+ *
+ * This returns the next platform device ID number that has to be used
+ * for platform_device_alloc. The ID is opaque and should not be used for
+ * anything else.
+ */
+int spi_gpio_next_id(void);
+
+#endif /* _LINUX_SPI_SPI_GPIO */
--- /dev/null
+++ b/drivers/spi/spi_gpio_old.c
@@ -0,0 +1,251 @@
+/*
+ * Bitbanging SPI bus driver using GPIO API
+ *
+ * Copyright (c) 2008 Piotr Skamruk
+ * Copyright (c) 2008 Michael Buesch
+ *
+ * based on spi_s3c2410_gpio.c
+ * Copyright (c) 2006 Ben Dooks
+ * Copyright (c) 2006 Simtec Electronics
+ * and on i2c-gpio.c
+ * Copyright (C) 2007 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/spi_bitbang.h>
+#include <linux/spi/spi_gpio_old.h>
+#include <linux/gpio.h>
+#include <asm/atomic.h>
+
+
+struct spi_gpio {
+ struct spi_bitbang bitbang;
+ struct spi_gpio_platform_data *info;
+ struct platform_device *pdev;
+ struct spi_board_info bi;
+};
+
+
+static inline struct spi_gpio *spidev_to_sg(struct spi_device *dev)
+{
+ return dev->controller_data;
+}
+
+static inline void setsck(struct spi_device *dev, int val)
+{
+ struct spi_gpio *sp = spidev_to_sg(dev);
+ gpio_set_value(sp->info->pin_clk, val ? 1 : 0);
+}
+
+static inline void setmosi(struct spi_device *dev, int val)
+{
+ struct spi_gpio *sp = spidev_to_sg(dev);
+ gpio_set_value(sp->info->pin_mosi, val ? 1 : 0);
+}
+
+static inline u32 getmiso(struct spi_device *dev)
+{
+ struct spi_gpio *sp = spidev_to_sg(dev);
+ return gpio_get_value(sp->info->pin_miso) ? 1 : 0;
+}
+
+static inline void do_spidelay(struct spi_device *dev, unsigned nsecs)
+{
+ struct spi_gpio *sp = spidev_to_sg(dev);
+
+ if (!sp->info->no_spi_delay)
+ ndelay(nsecs);
+}
+
+#define spidelay(nsecs) do { \
+ /* Steal the spi_device pointer from our caller. \
+ * The bitbang-API should probably get fixed here... */ \
+ do_spidelay(spi, nsecs); \
+ } while (0)
+
+#define EXPAND_BITBANG_TXRX
+#include "spi-bitbang-txrx.h"
+
+static u32 spi_gpio_txrx_mode0(struct spi_device *spi,
+ unsigned nsecs, u32 word, u8 bits)
+{
+ return bitbang_txrx_be_cpha0(spi, nsecs, 0, 0, word, bits);
+}
+
+static u32 spi_gpio_txrx_mode1(struct spi_device *spi,
+ unsigned nsecs, u32 word, u8 bits)
+{
+ return bitbang_txrx_be_cpha1(spi, nsecs, 0, 0, word, bits);
+}
+
+static u32 spi_gpio_txrx_mode2(struct spi_device *spi,
+ unsigned nsecs, u32 word, u8 bits)
+{
+ return bitbang_txrx_be_cpha0(spi, nsecs, 1, 0, word, bits);
+}
+
+static u32 spi_gpio_txrx_mode3(struct spi_device *spi,
+ unsigned nsecs, u32 word, u8 bits)
+{
+ return bitbang_txrx_be_cpha1(spi, nsecs, 1, 0, word, bits);
+}
+
+static void spi_gpio_chipselect(struct spi_device *dev, int on)
+{
+ struct spi_gpio *sp = spidev_to_sg(dev);
+
+ if (sp->info->cs_activelow)
+ on = !on;
+ gpio_set_value(sp->info->pin_cs, on ? 1 : 0);
+}
+
+static int spi_gpio_probe(struct platform_device *pdev)
+{
+ struct spi_master *master;
+ struct spi_gpio_platform_data *pdata;
+ struct spi_gpio *sp;
+ struct spi_device *spidev;
+ int err;
+
+ pdata = pdev->dev.platform_data;
+ if (!pdata)
+ return -ENXIO;
+
+ err = -ENOMEM;
+ master = spi_alloc_master(&pdev->dev, sizeof(struct spi_gpio));
+ if (!master)
+ goto err_alloc_master;
+
+ sp = spi_master_get_devdata(master);
+ platform_set_drvdata(pdev, sp);
+ sp->info = pdata;
+
+ err = gpio_request(pdata->pin_clk, "spi_clock");
+ if (err)
+ goto err_request_clk;
+ err = gpio_request(pdata->pin_mosi, "spi_mosi");
+ if (err)
+ goto err_request_mosi;
+ err = gpio_request(pdata->pin_miso, "spi_miso");
+ if (err)
+ goto err_request_miso;
+ err = gpio_request(pdata->pin_cs, "spi_cs");
+ if (err)
+ goto err_request_cs;
+
+ sp->bitbang.master = spi_master_get(master);
+ sp->bitbang.master->bus_num = -1;
+ sp->bitbang.master->num_chipselect = 1;
+ sp->bitbang.chipselect = spi_gpio_chipselect;
+ sp->bitbang.txrx_word[SPI_MODE_0] = spi_gpio_txrx_mode0;
+ sp->bitbang.txrx_word[SPI_MODE_1] = spi_gpio_txrx_mode1;
+ sp->bitbang.txrx_word[SPI_MODE_2] = spi_gpio_txrx_mode2;
+ sp->bitbang.txrx_word[SPI_MODE_3] = spi_gpio_txrx_mode3;
+
+ gpio_direction_output(pdata->pin_clk, 0);
+ gpio_direction_output(pdata->pin_mosi, 0);
+ gpio_direction_output(pdata->pin_cs,
+ pdata->cs_activelow ? 1 : 0);
+ gpio_direction_input(pdata->pin_miso);
+
+ err = spi_bitbang_start(&sp->bitbang);
+ if (err)
+ goto err_no_bitbang;
+ err = pdata->boardinfo_setup(&sp->bi, master,
+ pdata->boardinfo_setup_data);
+ if (err)
+ goto err_bi_setup;
+ sp->bi.controller_data = sp;
+ spidev = spi_new_device(master, &sp->bi);
+ if (!spidev)
+ goto err_new_dev;
+
+ return 0;
+
+err_new_dev:
+err_bi_setup:
+ spi_bitbang_stop(&sp->bitbang);
+err_no_bitbang:
+ spi_master_put(sp->bitbang.master);
+ gpio_free(pdata->pin_cs);
+err_request_cs:
+ gpio_free(pdata->pin_miso);
+err_request_miso:
+ gpio_free(pdata->pin_mosi);
+err_request_mosi:
+ gpio_free(pdata->pin_clk);
+err_request_clk:
+ kfree(master);
+
+err_alloc_master:
+ return err;
+}
+
+static int __devexit spi_gpio_remove(struct platform_device *pdev)
+{
+ struct spi_gpio *sp;
+ struct spi_gpio_platform_data *pdata;
+
+ pdata = pdev->dev.platform_data;
+ sp = platform_get_drvdata(pdev);
+
+ gpio_free(pdata->pin_clk);
+ gpio_free(pdata->pin_mosi);
+ gpio_free(pdata->pin_miso);
+ gpio_free(pdata->pin_cs);
+ spi_bitbang_stop(&sp->bitbang);
+ spi_master_put(sp->bitbang.master);
+
+ return 0;
+}
+
+static struct platform_driver spi_gpio_driver = {
+ .driver = {
+ .name = SPI_GPIO_PLATDEV_NAME,
+ .owner = THIS_MODULE,
+ },
+ .probe = spi_gpio_probe,
+ .remove = __devexit_p(spi_gpio_remove),
+};
+
+int spi_gpio_next_id(void)
+{
+ static atomic_t counter = ATOMIC_INIT(-1);
+
+ return atomic_inc_return(&counter);
+}
+EXPORT_SYMBOL(spi_gpio_next_id);
+
+static int __init spi_gpio_init(void)
+{
+ int err;
+
+ err = platform_driver_register(&spi_gpio_driver);
+ if (err)
+ printk(KERN_ERR "spi-gpio: register failed: %d\n", err);
+
+ return err;
+}
+module_init(spi_gpio_init);
+
+static void __exit spi_gpio_exit(void)
+{
+ platform_driver_unregister(&spi_gpio_driver);
+}
+module_exit(spi_gpio_exit);
+
+MODULE_AUTHOR("Piot Skamruk <piotr.skamruk at gmail.com>");
+MODULE_AUTHOR("Michael Buesch");
+MODULE_DESCRIPTION("Platform independent GPIO bitbanging SPI driver");
+MODULE_LICENSE("GPL v2");
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -154,6 +154,15 @@ config SPI_GPIO
GPIO operations, you should be able to leverage that for better
speed with a custom version of this driver; see the source code.
+config SPI_GPIO_OLD
+ tristate "Old GPIO API based bitbanging SPI controller (DEPRECATED)"
+ depends on SPI_MASTER && GENERIC_GPIO
+ select SPI_BITBANG
+ help
+ This code is deprecated. Please use the new mainline SPI-GPIO driver.
+
+ If unsure, say N.
+
config SPI_IMX
tristate "Freescale i.MX SPI controllers"
depends on ARCH_MXC
--- a/drivers/spi/Makefile
+++ b/drivers/spi/Makefile
@@ -29,6 +29,7 @@ obj-$(CONFIG_SPI_FSL_LIB) += spi-fsl-li
obj-$(CONFIG_SPI_FSL_ESPI) += spi-fsl-espi.o
obj-$(CONFIG_SPI_FSL_SPI) += spi-fsl-spi.o
obj-$(CONFIG_SPI_GPIO) += spi-gpio.o
+obj-$(CONFIG_SPI_GPIO_OLD) += spi_gpio_old.o
obj-$(CONFIG_SPI_IMX) += spi-imx.o
obj-$(CONFIG_SPI_LM70_LLP) += spi-lm70llp.o
obj-$(CONFIG_SPI_MPC512x_PSC) += spi-mpc512x-psc.o

View File

@ -0,0 +1,843 @@
--- /dev/null
+++ b/drivers/mmc/host/gpiommc.c
@@ -0,0 +1,608 @@
+/*
+ * Driver an MMC/SD card on a bitbanging GPIO SPI bus.
+ * This module hooks up the mmc_spi and spi_gpio modules and also
+ * provides a configfs interface.
+ *
+ * Copyright 2008 Michael Buesch <mb@bu3sch.de>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/mmc/gpiommc.h>
+#include <linux/platform_device.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/spi/spi_gpio_old.h>
+#include <linux/configfs.h>
+#include <linux/gpio.h>
+#include <asm/atomic.h>
+
+
+#define PFX "gpio-mmc: "
+
+
+struct gpiommc_device {
+ struct platform_device *pdev;
+ struct platform_device *spi_pdev;
+ struct spi_board_info boardinfo;
+};
+
+
+MODULE_DESCRIPTION("GPIO based MMC driver");
+MODULE_AUTHOR("Michael Buesch");
+MODULE_LICENSE("GPL");
+
+
+static int gpiommc_boardinfo_setup(struct spi_board_info *bi,
+ struct spi_master *master,
+ void *data)
+{
+ struct gpiommc_device *d = data;
+ struct gpiommc_platform_data *pdata = d->pdev->dev.platform_data;
+
+ /* Bind the SPI master to the MMC-SPI host driver. */
+ strlcpy(bi->modalias, "mmc_spi", sizeof(bi->modalias));
+
+ bi->max_speed_hz = pdata->max_bus_speed;
+ bi->bus_num = master->bus_num;
+ bi->mode = pdata->mode;
+
+ return 0;
+}
+
+static int gpiommc_probe(struct platform_device *pdev)
+{
+ struct gpiommc_platform_data *mmc_pdata = pdev->dev.platform_data;
+ struct spi_gpio_platform_data spi_pdata;
+ struct gpiommc_device *d;
+ int err;
+
+ err = -ENXIO;
+ if (!mmc_pdata)
+ goto error;
+
+#ifdef CONFIG_MMC_SPI_MODULE
+ err = request_module("mmc_spi");
+ if (err) {
+ printk(KERN_WARNING PFX
+ "Failed to request mmc_spi module.\n");
+ }
+#endif /* CONFIG_MMC_SPI_MODULE */
+
+ /* Allocate the GPIO-MMC device */
+ err = -ENOMEM;
+ d = kzalloc(sizeof(*d), GFP_KERNEL);
+ if (!d)
+ goto error;
+ d->pdev = pdev;
+
+ /* Create the SPI-GPIO device */
+ d->spi_pdev = platform_device_alloc(SPI_GPIO_PLATDEV_NAME,
+ spi_gpio_next_id());
+ if (!d->spi_pdev)
+ goto err_free_d;
+
+ memset(&spi_pdata, 0, sizeof(spi_pdata));
+ spi_pdata.pin_clk = mmc_pdata->pins.gpio_clk;
+ spi_pdata.pin_miso = mmc_pdata->pins.gpio_do;
+ spi_pdata.pin_mosi = mmc_pdata->pins.gpio_di;
+ spi_pdata.pin_cs = mmc_pdata->pins.gpio_cs;
+ spi_pdata.cs_activelow = mmc_pdata->pins.cs_activelow;
+ spi_pdata.no_spi_delay = mmc_pdata->no_spi_delay;
+ spi_pdata.boardinfo_setup = gpiommc_boardinfo_setup;
+ spi_pdata.boardinfo_setup_data = d;
+
+ err = platform_device_add_data(d->spi_pdev, &spi_pdata,
+ sizeof(spi_pdata));
+ if (err)
+ goto err_free_pdev;
+ err = platform_device_add(d->spi_pdev);
+ if (err)
+ goto err_free_pdata;
+ platform_set_drvdata(pdev, d);
+
+ printk(KERN_INFO PFX "MMC-Card \"%s\" "
+ "attached to GPIO pins di=%u, do=%u, clk=%u, cs=%u\n",
+ mmc_pdata->name, mmc_pdata->pins.gpio_di,
+ mmc_pdata->pins.gpio_do,
+ mmc_pdata->pins.gpio_clk,
+ mmc_pdata->pins.gpio_cs);
+
+ return 0;
+
+err_free_pdata:
+ kfree(d->spi_pdev->dev.platform_data);
+ d->spi_pdev->dev.platform_data = NULL;
+err_free_pdev:
+ platform_device_put(d->spi_pdev);
+err_free_d:
+ kfree(d);
+error:
+ return err;
+}
+
+static int gpiommc_remove(struct platform_device *pdev)
+{
+ struct gpiommc_device *d = platform_get_drvdata(pdev);
+ struct gpiommc_platform_data *pdata = d->pdev->dev.platform_data;
+
+ platform_device_unregister(d->spi_pdev);
+ printk(KERN_INFO PFX "GPIO based MMC-Card \"%s\" removed\n",
+ pdata->name);
+ platform_device_put(d->spi_pdev);
+
+ return 0;
+}
+
+#ifdef CONFIG_GPIOMMC_CONFIGFS
+
+/* A device that was created through configfs */
+struct gpiommc_configfs_device {
+ struct config_item item;
+ /* The platform device, after registration. */
+ struct platform_device *pdev;
+ /* The configuration */
+ struct gpiommc_platform_data pdata;
+};
+
+#define GPIO_INVALID -1
+
+static inline bool gpiommc_is_registered(struct gpiommc_configfs_device *dev)
+{
+ return (dev->pdev != NULL);
+}
+
+static inline struct gpiommc_configfs_device *ci_to_gpiommc(struct config_item *item)
+{
+ return item ? container_of(item, struct gpiommc_configfs_device, item) : NULL;
+}
+
+static struct configfs_attribute gpiommc_attr_DI = {
+ .ca_owner = THIS_MODULE,
+ .ca_name = "gpio_data_in",
+ .ca_mode = S_IRUGO | S_IWUSR,
+};
+
+static struct configfs_attribute gpiommc_attr_DO = {
+ .ca_owner = THIS_MODULE,
+ .ca_name = "gpio_data_out",
+ .ca_mode = S_IRUGO | S_IWUSR,
+};
+
+static struct configfs_attribute gpiommc_attr_CLK = {
+ .ca_owner = THIS_MODULE,
+ .ca_name = "gpio_clock",
+ .ca_mode = S_IRUGO | S_IWUSR,
+};
+
+static struct configfs_attribute gpiommc_attr_CS = {
+ .ca_owner = THIS_MODULE,
+ .ca_name = "gpio_chipselect",
+ .ca_mode = S_IRUGO | S_IWUSR,
+};
+
+static struct configfs_attribute gpiommc_attr_CS_activelow = {
+ .ca_owner = THIS_MODULE,
+ .ca_name = "gpio_chipselect_activelow",
+ .ca_mode = S_IRUGO | S_IWUSR,
+};
+
+static struct configfs_attribute gpiommc_attr_spimode = {
+ .ca_owner = THIS_MODULE,
+ .ca_name = "spi_mode",
+ .ca_mode = S_IRUGO | S_IWUSR,
+};
+
+static struct configfs_attribute gpiommc_attr_spidelay = {
+ .ca_owner = THIS_MODULE,
+ .ca_name = "spi_delay",
+ .ca_mode = S_IRUGO | S_IWUSR,
+};
+
+static struct configfs_attribute gpiommc_attr_max_bus_speed = {
+ .ca_owner = THIS_MODULE,
+ .ca_name = "max_bus_speed",
+ .ca_mode = S_IRUGO | S_IWUSR,
+};
+
+static struct configfs_attribute gpiommc_attr_register = {
+ .ca_owner = THIS_MODULE,
+ .ca_name = "register",
+ .ca_mode = S_IRUGO | S_IWUSR,
+};
+
+static struct configfs_attribute *gpiommc_config_attrs[] = {
+ &gpiommc_attr_DI,
+ &gpiommc_attr_DO,
+ &gpiommc_attr_CLK,
+ &gpiommc_attr_CS,
+ &gpiommc_attr_CS_activelow,
+ &gpiommc_attr_spimode,
+ &gpiommc_attr_spidelay,
+ &gpiommc_attr_max_bus_speed,
+ &gpiommc_attr_register,
+ NULL,
+};
+
+static ssize_t gpiommc_config_attr_show(struct config_item *item,
+ struct configfs_attribute *attr,
+ char *page)
+{
+ struct gpiommc_configfs_device *dev = ci_to_gpiommc(item);
+ ssize_t count = 0;
+ unsigned int gpio;
+ int err = 0;
+
+ if (attr == &gpiommc_attr_DI) {
+ gpio = dev->pdata.pins.gpio_di;
+ if (gpio == GPIO_INVALID)
+ count = snprintf(page, PAGE_SIZE, "not configured\n");
+ else
+ count = snprintf(page, PAGE_SIZE, "%u\n", gpio);
+ goto out;
+ }
+ if (attr == &gpiommc_attr_DO) {
+ gpio = dev->pdata.pins.gpio_do;
+ if (gpio == GPIO_INVALID)
+ count = snprintf(page, PAGE_SIZE, "not configured\n");
+ else
+ count = snprintf(page, PAGE_SIZE, "%u\n", gpio);
+ goto out;
+ }
+ if (attr == &gpiommc_attr_CLK) {
+ gpio = dev->pdata.pins.gpio_clk;
+ if (gpio == GPIO_INVALID)
+ count = snprintf(page, PAGE_SIZE, "not configured\n");
+ else
+ count = snprintf(page, PAGE_SIZE, "%u\n", gpio);
+ goto out;
+ }
+ if (attr == &gpiommc_attr_CS) {
+ gpio = dev->pdata.pins.gpio_cs;
+ if (gpio == GPIO_INVALID)
+ count = snprintf(page, PAGE_SIZE, "not configured\n");
+ else
+ count = snprintf(page, PAGE_SIZE, "%u\n", gpio);
+ goto out;
+ }
+ if (attr == &gpiommc_attr_CS_activelow) {
+ count = snprintf(page, PAGE_SIZE, "%u\n",
+ dev->pdata.pins.cs_activelow);
+ goto out;
+ }
+ if (attr == &gpiommc_attr_spimode) {
+ count = snprintf(page, PAGE_SIZE, "%u\n",
+ dev->pdata.mode);
+ goto out;
+ }
+ if (attr == &gpiommc_attr_spidelay) {
+ count = snprintf(page, PAGE_SIZE, "%u\n",
+ !dev->pdata.no_spi_delay);
+ goto out;
+ }
+ if (attr == &gpiommc_attr_max_bus_speed) {
+ count = snprintf(page, PAGE_SIZE, "%u\n",
+ dev->pdata.max_bus_speed);
+ goto out;
+ }
+ if (attr == &gpiommc_attr_register) {
+ count = snprintf(page, PAGE_SIZE, "%u\n",
+ gpiommc_is_registered(dev));
+ goto out;
+ }
+ WARN_ON(1);
+ err = -ENOSYS;
+out:
+ return err ? err : count;
+}
+
+static int gpiommc_do_register(struct gpiommc_configfs_device *dev,
+ const char *name)
+{
+ int err;
+
+ if (gpiommc_is_registered(dev))
+ return 0;
+
+ if (!gpio_is_valid(dev->pdata.pins.gpio_di) ||
+ !gpio_is_valid(dev->pdata.pins.gpio_do) ||
+ !gpio_is_valid(dev->pdata.pins.gpio_clk) ||
+ !gpio_is_valid(dev->pdata.pins.gpio_cs)) {
+ printk(KERN_ERR PFX
+ "configfs: Invalid GPIO pin number(s)\n");
+ return -EINVAL;
+ }
+
+ strlcpy(dev->pdata.name, name,
+ sizeof(dev->pdata.name));
+
+ dev->pdev = platform_device_alloc(GPIOMMC_PLATDEV_NAME,
+ gpiommc_next_id());
+ if (!dev->pdev)
+ return -ENOMEM;
+ err = platform_device_add_data(dev->pdev, &dev->pdata,
+ sizeof(dev->pdata));
+ if (err) {
+ platform_device_put(dev->pdev);
+ return err;
+ }
+ err = platform_device_add(dev->pdev);
+ if (err) {
+ platform_device_put(dev->pdev);
+ return err;
+ }
+
+ return 0;
+}
+
+static void gpiommc_do_unregister(struct gpiommc_configfs_device *dev)
+{
+ if (!gpiommc_is_registered(dev))
+ return;
+
+ platform_device_unregister(dev->pdev);
+ dev->pdev = NULL;
+}
+
+static ssize_t gpiommc_config_attr_store(struct config_item *item,
+ struct configfs_attribute *attr,
+ const char *page, size_t count)
+{
+ struct gpiommc_configfs_device *dev = ci_to_gpiommc(item);
+ int err = -EINVAL;
+ unsigned long data;
+
+ if (attr == &gpiommc_attr_register) {
+ err = strict_strtoul(page, 10, &data);
+ if (err)
+ goto out;
+ err = -EINVAL;
+ if (data == 1)
+ err = gpiommc_do_register(dev, item->ci_name);
+ if (data == 0) {
+ gpiommc_do_unregister(dev);
+ err = 0;
+ }
+ goto out;
+ }
+
+ if (gpiommc_is_registered(dev)) {
+ /* The rest of the config parameters can only be set
+ * as long as the device is not registered, yet. */
+ err = -EBUSY;
+ goto out;
+ }
+
+ if (attr == &gpiommc_attr_DI) {
+ err = strict_strtoul(page, 10, &data);
+ if (err)
+ goto out;
+ err = -EINVAL;
+ if (!gpio_is_valid(data))
+ goto out;
+ dev->pdata.pins.gpio_di = data;
+ err = 0;
+ goto out;
+ }
+ if (attr == &gpiommc_attr_DO) {
+ err = strict_strtoul(page, 10, &data);
+ if (err)
+ goto out;
+ err = -EINVAL;
+ if (!gpio_is_valid(data))
+ goto out;
+ dev->pdata.pins.gpio_do = data;
+ err = 0;
+ goto out;
+ }
+ if (attr == &gpiommc_attr_CLK) {
+ err = strict_strtoul(page, 10, &data);
+ if (err)
+ goto out;
+ err = -EINVAL;
+ if (!gpio_is_valid(data))
+ goto out;
+ dev->pdata.pins.gpio_clk = data;
+ err = 0;
+ goto out;
+ }
+ if (attr == &gpiommc_attr_CS) {
+ err = strict_strtoul(page, 10, &data);
+ if (err)
+ goto out;
+ err = -EINVAL;
+ if (!gpio_is_valid(data))
+ goto out;
+ dev->pdata.pins.gpio_cs = data;
+ err = 0;
+ goto out;
+ }
+ if (attr == &gpiommc_attr_CS_activelow) {
+ err = strict_strtoul(page, 10, &data);
+ if (err)
+ goto out;
+ err = -EINVAL;
+ if (data != 0 && data != 1)
+ goto out;
+ dev->pdata.pins.cs_activelow = data;
+ err = 0;
+ goto out;
+ }
+ if (attr == &gpiommc_attr_spimode) {
+ err = strict_strtoul(page, 10, &data);
+ if (err)
+ goto out;
+ err = -EINVAL;
+ switch (data) {
+ case 0:
+ dev->pdata.mode = SPI_MODE_0;
+ break;
+ case 1:
+ dev->pdata.mode = SPI_MODE_1;
+ break;
+ case 2:
+ dev->pdata.mode = SPI_MODE_2;
+ break;
+ case 3:
+ dev->pdata.mode = SPI_MODE_3;
+ break;
+ default:
+ goto out;
+ }
+ err = 0;
+ goto out;
+ }
+ if (attr == &gpiommc_attr_spidelay) {
+ err = strict_strtoul(page, 10, &data);
+ if (err)
+ goto out;
+ err = -EINVAL;
+ if (data != 0 && data != 1)
+ goto out;
+ dev->pdata.no_spi_delay = !data;
+ err = 0;
+ goto out;
+ }
+ if (attr == &gpiommc_attr_max_bus_speed) {
+ err = strict_strtoul(page, 10, &data);
+ if (err)
+ goto out;
+ err = -EINVAL;
+ if (data > UINT_MAX)
+ goto out;
+ dev->pdata.max_bus_speed = data;
+ err = 0;
+ goto out;
+ }
+ WARN_ON(1);
+ err = -ENOSYS;
+out:
+ return err ? err : count;
+}
+
+static void gpiommc_config_item_release(struct config_item *item)
+{
+ struct gpiommc_configfs_device *dev = ci_to_gpiommc(item);
+
+ kfree(dev);
+}
+
+static struct configfs_item_operations gpiommc_config_item_ops = {
+ .release = gpiommc_config_item_release,
+ .show_attribute = gpiommc_config_attr_show,
+ .store_attribute = gpiommc_config_attr_store,
+};
+
+static struct config_item_type gpiommc_dev_ci_type = {
+ .ct_item_ops = &gpiommc_config_item_ops,
+ .ct_attrs = gpiommc_config_attrs,
+ .ct_owner = THIS_MODULE,
+};
+
+static struct config_item *gpiommc_make_item(struct config_group *group,
+ const char *name)
+{
+ struct gpiommc_configfs_device *dev;
+
+ if (strlen(name) > GPIOMMC_MAX_NAMELEN) {
+ printk(KERN_ERR PFX "configfs: device name too long\n");
+ return NULL;
+ }
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev)
+ return NULL;
+
+ config_item_init_type_name(&dev->item, name,
+ &gpiommc_dev_ci_type);
+
+ /* Assign default configuration */
+ dev->pdata.pins.gpio_di = GPIO_INVALID;
+ dev->pdata.pins.gpio_do = GPIO_INVALID;
+ dev->pdata.pins.gpio_clk = GPIO_INVALID;
+ dev->pdata.pins.gpio_cs = GPIO_INVALID;
+ dev->pdata.pins.cs_activelow = 1;
+ dev->pdata.mode = SPI_MODE_0;
+ dev->pdata.no_spi_delay = 0;
+ dev->pdata.max_bus_speed = 5000000; /* 5 MHz */
+
+ return &(dev->item);
+}
+
+static void gpiommc_drop_item(struct config_group *group,
+ struct config_item *item)
+{
+ struct gpiommc_configfs_device *dev = ci_to_gpiommc(item);
+
+ gpiommc_do_unregister(dev);
+ kfree(dev);
+}
+
+static struct configfs_group_operations gpiommc_ct_group_ops = {
+ .make_item = gpiommc_make_item,
+ .drop_item = gpiommc_drop_item,
+};
+
+static struct config_item_type gpiommc_ci_type = {
+ .ct_group_ops = &gpiommc_ct_group_ops,
+ .ct_owner = THIS_MODULE,
+};
+
+static struct configfs_subsystem gpiommc_subsys = {
+ .su_group = {
+ .cg_item = {
+ .ci_namebuf = GPIOMMC_PLATDEV_NAME,
+ .ci_type = &gpiommc_ci_type,
+ },
+ },
+ .su_mutex = __MUTEX_INITIALIZER(gpiommc_subsys.su_mutex),
+};
+
+#endif /* CONFIG_GPIOMMC_CONFIGFS */
+
+static struct platform_driver gpiommc_plat_driver = {
+ .probe = gpiommc_probe,
+ .remove = gpiommc_remove,
+ .driver = {
+ .name = GPIOMMC_PLATDEV_NAME,
+ .owner = THIS_MODULE,
+ },
+};
+
+int gpiommc_next_id(void)
+{
+ static atomic_t counter = ATOMIC_INIT(-1);
+
+ return atomic_inc_return(&counter);
+}
+EXPORT_SYMBOL(gpiommc_next_id);
+
+static int __init gpiommc_modinit(void)
+{
+ int err;
+
+ err = platform_driver_register(&gpiommc_plat_driver);
+ if (err)
+ return err;
+
+#ifdef CONFIG_GPIOMMC_CONFIGFS
+ config_group_init(&gpiommc_subsys.su_group);
+ err = configfs_register_subsystem(&gpiommc_subsys);
+ if (err) {
+ platform_driver_unregister(&gpiommc_plat_driver);
+ return err;
+ }
+#endif /* CONFIG_GPIOMMC_CONFIGFS */
+
+ return 0;
+}
+module_init(gpiommc_modinit);
+
+static void __exit gpiommc_modexit(void)
+{
+#ifdef CONFIG_GPIOMMC_CONFIGFS
+ configfs_unregister_subsystem(&gpiommc_subsys);
+#endif
+ platform_driver_unregister(&gpiommc_plat_driver);
+}
+module_exit(gpiommc_modexit);
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -474,6 +474,31 @@ config MMC_SDHI
This provides support for the SDHI SD/SDIO controller found in
SuperH and ARM SH-Mobile SoCs
+config GPIOMMC
+ tristate "MMC/SD over GPIO-based SPI"
+ depends on MMC && MMC_SPI && SPI_GPIO_OLD
+ help
+ This driver hooks up the mmc_spi and spi_gpio modules so that
+ MMC/SD cards can be used on a GPIO based bus by bitbanging
+ the SPI protocol in software.
+
+ This driver provides a configfs interface to dynamically create
+ and destroy GPIO-based MMC/SD card devices. It also provides
+ a platform device interface API.
+ See Documentation/gpiommc.txt for details.
+
+ The module will be called gpiommc.
+
+ If unsure, say N.
+
+config GPIOMMC_CONFIGFS
+ bool
+ depends on GPIOMMC && CONFIGFS_FS
+ default y
+ help
+ This option automatically enables configfs support for gpiommc
+ if configfs is available.
+
config MMC_CB710
tristate "ENE CB710 MMC/SD Interface support"
depends on PCI
--- a/drivers/mmc/host/Makefile
+++ b/drivers/mmc/host/Makefile
@@ -36,6 +36,7 @@ tmio_mmc_core-$(subst m,y,$(CONFIG_MMC_S
obj-$(CONFIG_MMC_SDHI) += sh_mobile_sdhi.o
obj-$(CONFIG_MMC_CB710) += cb710-mmc.o
obj-$(CONFIG_MMC_VIA_SDMMC) += via-sdmmc.o
+obj-$(CONFIG_GPIOMMC) += gpiommc.o
obj-$(CONFIG_SDH_BFIN) += bfin_sdh.o
obj-$(CONFIG_MMC_DW) += dw_mmc.o
obj-$(CONFIG_MMC_SH_MMCIF) += sh_mmcif.o
--- /dev/null
+++ b/include/linux/mmc/gpiommc.h
@@ -0,0 +1,71 @@
+/*
+ * Device driver for MMC/SD cards driven over a GPIO bus.
+ *
+ * Copyright (c) 2008 Michael Buesch
+ *
+ * Licensed under the GNU/GPL version 2.
+ */
+#ifndef LINUX_GPIOMMC_H_
+#define LINUX_GPIOMMC_H_
+
+#include <linux/types.h>
+
+
+#define GPIOMMC_MAX_NAMELEN 15
+#define GPIOMMC_MAX_NAMELEN_STR __stringify(GPIOMMC_MAX_NAMELEN)
+
+/**
+ * struct gpiommc_pins - Hardware pin assignments
+ *
+ * @gpio_di: The GPIO number of the DATA IN pin
+ * @gpio_do: The GPIO number of the DATA OUT pin
+ * @gpio_clk: The GPIO number of the CLOCK pin
+ * @gpio_cs: The GPIO number of the CHIPSELECT pin
+ * @cs_activelow: If true, the chip is considered selected if @gpio_cs is low.
+ */
+struct gpiommc_pins {
+ unsigned int gpio_di;
+ unsigned int gpio_do;
+ unsigned int gpio_clk;
+ unsigned int gpio_cs;
+ bool cs_activelow;
+};
+
+/**
+ * struct gpiommc_platform_data - Platform data for a MMC-over-SPI-GPIO device.
+ *
+ * @name: The unique name string of the device.
+ * @pins: The hardware pin assignments.
+ * @mode: The hardware mode. This is either SPI_MODE_0,
+ * SPI_MODE_1, SPI_MODE_2 or SPI_MODE_3. See the SPI documentation.
+ * @no_spi_delay: Do not use delays in the lowlevel SPI bitbanging code.
+ * This is not standards compliant, but may be required for some
+ * embedded machines to gain reasonable speed.
+ * @max_bus_speed: The maximum speed of the SPI bus, in Hertz.
+ */
+struct gpiommc_platform_data {
+ char name[GPIOMMC_MAX_NAMELEN + 1];
+ struct gpiommc_pins pins;
+ u8 mode;
+ bool no_spi_delay;
+ unsigned int max_bus_speed;
+};
+
+/**
+ * GPIOMMC_PLATDEV_NAME - The platform device name string.
+ *
+ * The name string that has to be used for platform_device_alloc
+ * when allocating a gpiommc device.
+ */
+#define GPIOMMC_PLATDEV_NAME "gpiommc"
+
+/**
+ * gpiommc_next_id - Get another platform device ID number.
+ *
+ * This returns the next platform device ID number that has to be used
+ * for platform_device_alloc. The ID is opaque and should not be used for
+ * anything else.
+ */
+int gpiommc_next_id(void);
+
+#endif /* LINUX_GPIOMMC_H_ */
--- /dev/null
+++ b/Documentation/gpiommc.txt
@@ -0,0 +1,97 @@
+GPIOMMC - Driver for an MMC/SD card on a bitbanging GPIO SPI bus
+================================================================
+
+The gpiommc module hooks up the mmc_spi and spi_gpio modules for running an
+MMC or SD card on GPIO pins.
+
+Two interfaces for registering a new MMC/SD card device are provided:
+A static platform-device based mechanism and a dynamic configfs based interface.
+
+
+Registering devices via platform-device
+=======================================
+
+The platform-device interface is used for registering MMC/SD devices that are
+part of the hardware platform. This is most useful only for embedded machines
+with MMC/SD devices statically connected to the platform GPIO bus.
+
+The data structures are declared in <linux/mmc/gpiommc.h>.
+
+To register a new device, define an instance of struct gpiommc_platform_data.
+This structure holds any information about how the device is hooked up to the
+GPIO pins and what hardware modes the device supports. See the docbook-style
+documentation in the header file for more information on the struct fields.
+
+Then allocate a new instance of a platform device by doing:
+
+ pdev = platform_device_alloc(GPIOMMC_PLATDEV_NAME, gpiommc_next_id());
+
+This will allocate the platform device data structures and hook it up to the
+gpiommc driver.
+Then add the gpiommc_platform_data to the platform device.
+
+ err = platform_device_add_data(pdev, pdata, sizeof(struct gpiommc_platform_data));
+
+You may free the local instance of struct gpiommc_platform_data now. (So the
+struct may be allocated on the stack, too).
+Now simply register the platform device.
+
+ err = platform_device_add(pdev);
+
+Done. The gpiommc probe routine will be invoked now and you should see a kernel
+log message for the added device.
+
+
+Registering devices via configfs
+================================
+
+MMC/SD cards connected via GPIO often are a pretty dynamic thing, as for example
+selfmade hacks for soldering an MMC/SD card to standard GPIO pins on embedded
+hardware are a common situation.
+So we provide a dynamic interface to conveniently handle adding and removing
+devices from userspace, without the need to recompile the kernel.
+
+The "gpiommc" subdirectory at the configfs mountpoint is used for handling
+the dynamic configuration.
+
+To create a new device, it must first be allocated with mkdir.
+The following command will allocate a device named "my_mmc":
+ mkdir /config/gpiommc/my_mmc
+
+There are several configuration files available in the new
+/config/gpiommc/my_mmc/ directory:
+
+gpio_data_in = The SPI data-IN GPIO pin number.
+gpio_data_out = The SPI data-OUT GPIO pin number.
+gpio_clock = The SPI Clock GPIO pin number.
+gpio_chipselect = The SPI Chipselect GPIO pin number.
+gpio_chipselect_activelow = Boolean. If 0, Chipselect is active-HIGH.
+ If 1, Chipselect is active-LOW.
+spi_mode = The SPI data mode. Can be 0-3.
+spi_delay = Enable all delays in the lowlevel bitbanging.
+max_bus_speed = The maximum SPI bus speed. In Hertz.
+
+register = Not a configuration parameter.
+ Used to register the configured card
+ with the kernel.
+
+The device must first get configured and then registered by writing "1" to
+the "register" file.
+The configuration parameters "gpio_data_in", "gpio_data_out", "gpio_clock"
+and "gpio_chipselect" are essential and _must_ be configured before writing
+"1" to the "register" file. The registration will fail, otherwise.
+
+The default values for the other parameters are:
+gpio_chipselect_activelow = 1 (CS active-LOW)
+spi_mode = 0 (SPI_MODE_0)
+spi_delay = 1 (enabled)
+max_bus_speed = 5000000 (5 Mhz)
+
+Configuration values can not be changed after registration. To unregister
+the device, write a "0" to the "register" file. The configuration can be
+changed again after unregistering.
+
+To completely remove the device, simply rmdir the directory
+(/config/gpiommc/my_mmc in this example).
+There's no need to first unregister the device before removing it. That will
+be done automatically.
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2933,6 +2933,11 @@ L: linuxppc-dev@lists.ozlabs.org
S: Odd Fixes
F: drivers/tty/hvc/
+GPIOMMC DRIVER
+P: Michael Buesch
+M: mb@bu3sch.de
+S: Maintained
+
HARDWARE MONITORING
M: Jean Delvare <khali@linux-fr.org>
M: Guenter Roeck <guenter.roeck@ericsson.com>

View File

@ -0,0 +1,58 @@
The gpiommc configfs context structure needs locking, as configfs
does not lock access between files.
--- a/drivers/mmc/host/gpiommc.c
+++ b/drivers/mmc/host/gpiommc.c
@@ -143,6 +143,8 @@ struct gpiommc_configfs_device {
struct platform_device *pdev;
/* The configuration */
struct gpiommc_platform_data pdata;
+ /* Mutex to protect this structure */
+ struct mutex mutex;
};
#define GPIO_INVALID -1
@@ -233,6 +235,8 @@ static ssize_t gpiommc_config_attr_show(
unsigned int gpio;
int err = 0;
+ mutex_lock(&dev->mutex);
+
if (attr == &gpiommc_attr_DI) {
gpio = dev->pdata.pins.gpio_di;
if (gpio == GPIO_INVALID)
@@ -293,6 +297,8 @@ static ssize_t gpiommc_config_attr_show(
WARN_ON(1);
err = -ENOSYS;
out:
+ mutex_unlock(&dev->mutex);
+
return err ? err : count;
}
@@ -352,6 +358,8 @@ static ssize_t gpiommc_config_attr_store
int err = -EINVAL;
unsigned long data;
+ mutex_lock(&dev->mutex);
+
if (attr == &gpiommc_attr_register) {
err = strict_strtoul(page, 10, &data);
if (err)
@@ -477,6 +485,8 @@ static ssize_t gpiommc_config_attr_store
WARN_ON(1);
err = -ENOSYS;
out:
+ mutex_unlock(&dev->mutex);
+
return err ? err : count;
}
@@ -513,6 +523,7 @@ static struct config_item *gpiommc_make_
if (!dev)
return NULL;
+ mutex_init(&dev->mutex);
config_item_init_type_name(&dev->item, name,
&gpiommc_dev_ci_type);

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