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-rw-r--r--include/acpi/acpixf.h2
-rw-r--r--include/acpi/actypes.h3
-rw-r--r--include/asm-generic/barrier.h16
-rw-r--r--include/dt-bindings/mailbox/qcom-ipcc.h33
-rw-r--r--include/linux/bch.h11
-rw-r--r--include/linux/compiler-gcc.h5
-rw-r--r--include/linux/compiler.h148
-rw-r--r--include/linux/compiler_types.h47
-rw-r--r--include/linux/cpufreq.h2
-rw-r--r--include/linux/cpuhotplug.h1
-rw-r--r--include/linux/fs.h1
-rw-r--r--include/linux/ftrace.h5
-rw-r--r--include/linux/input/gp2ap002a00f.h23
-rw-r--r--include/linux/input/mt.h5
-rw-r--r--include/linux/interconnect.h6
-rw-r--r--include/linux/kthread.h1
-rw-r--r--include/linux/memory_hotplug.h1
-rw-r--r--include/linux/mtd/bbm.h2
-rw-r--r--include/linux/mtd/cfi.h6
-rw-r--r--include/linux/mtd/mtd.h7
-rw-r--r--include/linux/mtd/partitions.h2
-rw-r--r--include/linux/mtd/qinfo.h2
-rw-r--r--include/linux/mtd/rawnand.h131
-rw-r--r--include/linux/mtd/spi-nor.h24
-rw-r--r--include/linux/nfs4.h4
-rw-r--r--include/linux/nfs_fs.h1
-rw-r--r--include/linux/nfs_xdr.h2
-rw-r--r--include/linux/page-flags.h10
-rw-r--r--include/linux/platform_data/mtd-davinci.h2
-rw-r--r--include/linux/platform_data/mtd-nand-s3c2410.h2
-rw-r--r--include/linux/pm_opp.h18
-rw-r--r--include/linux/regset.h2
-rw-r--r--include/linux/sunrpc/auth.h5
-rw-r--r--include/linux/sunrpc/gss_api.h1
-rw-r--r--include/linux/sunrpc/svc.h2
-rw-r--r--include/linux/sunrpc/svc_rdma.h6
-rw-r--r--include/linux/sunrpc/svc_xprt.h6
-rw-r--r--include/linux/sunrpc/svcauth_gss.h3
-rw-r--r--include/linux/sunrpc/svcsock.h6
-rw-r--r--include/linux/vdpa.h16
-rw-r--r--include/linux/vringh.h6
-rw-r--r--include/net/neighbour.h7
-rw-r--r--include/trace/events/rpcgss.h89
-rw-r--r--include/trace/events/rpcrdma.h146
-rw-r--r--include/trace/events/sunrpc.h748
-rw-r--r--include/uapi/linux/vhost.h4
-rw-r--r--include/uapi/linux/virtio_ids.h1
-rw-r--r--include/uapi/linux/virtio_mem.h211
-rw-r--r--include/uapi/linux/virtio_ring.h48
-rw-r--r--include/uapi/mtd/mtd-abi.h1
50 files changed, 1494 insertions, 337 deletions
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 1dc8d262035b..459d6981ca96 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -12,7 +12,7 @@
/* Current ACPICA subsystem version in YYYYMMDD format */
-#define ACPI_CA_VERSION 0x20200430
+#define ACPI_CA_VERSION 0x20200528
#include <acpi/acconfig.h>
#include <acpi/actypes.h>
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 4defed58ea33..aa236b9e6f24 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -815,8 +815,9 @@ typedef u8 acpi_adr_space_type;
#define ACPI_ADR_SPACE_GPIO (acpi_adr_space_type) 8
#define ACPI_ADR_SPACE_GSBUS (acpi_adr_space_type) 9
#define ACPI_ADR_SPACE_PLATFORM_COMM (acpi_adr_space_type) 10
+#define ACPI_ADR_SPACE_PLATFORM_RT (acpi_adr_space_type) 11
-#define ACPI_NUM_PREDEFINED_REGIONS 11
+#define ACPI_NUM_PREDEFINED_REGIONS 12
/*
* Special Address Spaces
diff --git a/include/asm-generic/barrier.h b/include/asm-generic/barrier.h
index 85b28eb80b11..2eacaf7d62f6 100644
--- a/include/asm-generic/barrier.h
+++ b/include/asm-generic/barrier.h
@@ -128,10 +128,10 @@ do { \
#ifndef __smp_load_acquire
#define __smp_load_acquire(p) \
({ \
- typeof(*p) ___p1 = READ_ONCE(*p); \
+ __unqual_scalar_typeof(*p) ___p1 = READ_ONCE(*p); \
compiletime_assert_atomic_type(*p); \
__smp_mb(); \
- ___p1; \
+ (typeof(*p))___p1; \
})
#endif
@@ -183,10 +183,10 @@ do { \
#ifndef smp_load_acquire
#define smp_load_acquire(p) \
({ \
- typeof(*p) ___p1 = READ_ONCE(*p); \
+ __unqual_scalar_typeof(*p) ___p1 = READ_ONCE(*p); \
compiletime_assert_atomic_type(*p); \
barrier(); \
- ___p1; \
+ (typeof(*p))___p1; \
})
#endif
@@ -229,14 +229,14 @@ do { \
#ifndef smp_cond_load_relaxed
#define smp_cond_load_relaxed(ptr, cond_expr) ({ \
typeof(ptr) __PTR = (ptr); \
- typeof(*ptr) VAL; \
+ __unqual_scalar_typeof(*ptr) VAL; \
for (;;) { \
VAL = READ_ONCE(*__PTR); \
if (cond_expr) \
break; \
cpu_relax(); \
} \
- VAL; \
+ (typeof(*ptr))VAL; \
})
#endif
@@ -250,10 +250,10 @@ do { \
*/
#ifndef smp_cond_load_acquire
#define smp_cond_load_acquire(ptr, cond_expr) ({ \
- typeof(*ptr) _val; \
+ __unqual_scalar_typeof(*ptr) _val; \
_val = smp_cond_load_relaxed(ptr, cond_expr); \
smp_acquire__after_ctrl_dep(); \
- _val; \
+ (typeof(*ptr))_val; \
})
#endif
diff --git a/include/dt-bindings/mailbox/qcom-ipcc.h b/include/dt-bindings/mailbox/qcom-ipcc.h
new file mode 100644
index 000000000000..4c23eefed5f3
--- /dev/null
+++ b/include/dt-bindings/mailbox/qcom-ipcc.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */
+/*
+ * Copyright (c) 2018-2020, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef __DT_BINDINGS_MAILBOX_IPCC_H
+#define __DT_BINDINGS_MAILBOX_IPCC_H
+
+/* Signal IDs for MPROC protocol */
+#define IPCC_MPROC_SIGNAL_GLINK_QMP 0
+#define IPCC_MPROC_SIGNAL_SMP2P 2
+#define IPCC_MPROC_SIGNAL_PING 3
+
+/* Client IDs */
+#define IPCC_CLIENT_AOP 0
+#define IPCC_CLIENT_TZ 1
+#define IPCC_CLIENT_MPSS 2
+#define IPCC_CLIENT_LPASS 3
+#define IPCC_CLIENT_SLPI 4
+#define IPCC_CLIENT_SDC 5
+#define IPCC_CLIENT_CDSP 6
+#define IPCC_CLIENT_NPU 7
+#define IPCC_CLIENT_APSS 8
+#define IPCC_CLIENT_GPU 9
+#define IPCC_CLIENT_CVP 10
+#define IPCC_CLIENT_CAM 11
+#define IPCC_CLIENT_VPU 12
+#define IPCC_CLIENT_PCIE0 13
+#define IPCC_CLIENT_PCIE1 14
+#define IPCC_CLIENT_PCIE2 15
+#define IPCC_CLIENT_SPSS 16
+
+#endif
diff --git a/include/linux/bch.h b/include/linux/bch.h
index aa765af85c38..85fdce83d4e2 100644
--- a/include/linux/bch.h
+++ b/include/linux/bch.h
@@ -33,6 +33,7 @@
* @cache: log-based polynomial representation buffer
* @elp: error locator polynomial
* @poly_2t: temporary polynomials of degree 2t
+ * @swap_bits: swap bits within data and syndrome bytes
*/
struct bch_control {
unsigned int m;
@@ -51,16 +52,18 @@ struct bch_control {
int *cache;
struct gf_poly *elp;
struct gf_poly *poly_2t[4];
+ bool swap_bits;
};
-struct bch_control *init_bch(int m, int t, unsigned int prim_poly);
+struct bch_control *bch_init(int m, int t, unsigned int prim_poly,
+ bool swap_bits);
-void free_bch(struct bch_control *bch);
+void bch_free(struct bch_control *bch);
-void encode_bch(struct bch_control *bch, const uint8_t *data,
+void bch_encode(struct bch_control *bch, const uint8_t *data,
unsigned int len, uint8_t *ecc);
-int decode_bch(struct bch_control *bch, const uint8_t *data, unsigned int len,
+int bch_decode(struct bch_control *bch, const uint8_t *data, unsigned int len,
const uint8_t *recv_ecc, const uint8_t *calc_ecc,
const unsigned int *syn, unsigned int *errloc);
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index d7ee4c6bad48..e2f725273261 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -10,7 +10,8 @@
+ __GNUC_MINOR__ * 100 \
+ __GNUC_PATCHLEVEL__)
-#if GCC_VERSION < 40600
+/* https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145 */
+#if GCC_VERSION < 40800
# error Sorry, your compiler is too old - please upgrade it.
#endif
@@ -126,9 +127,7 @@
#if defined(CONFIG_ARCH_USE_BUILTIN_BSWAP) && !defined(__CHECKER__)
#define __HAVE_BUILTIN_BSWAP32__
#define __HAVE_BUILTIN_BSWAP64__
-#if GCC_VERSION >= 40800
#define __HAVE_BUILTIN_BSWAP16__
-#endif
#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP && !__CHECKER__ */
#if GCC_VERSION >= 70000
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 6325d64e3c3b..33d3a2e5abab 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -230,60 +230,6 @@ void ftrace_likely_update(struct ftrace_likely_data *f, int val,
# define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __LINE__)
#endif
-#include <uapi/linux/types.h>
-
-#define __READ_ONCE_SIZE \
-({ \
- switch (size) { \
- case 1: *(__u8 *)res = *(volatile __u8 *)p; break; \
- case 2: *(__u16 *)res = *(volatile __u16 *)p; break; \
- case 4: *(__u32 *)res = *(volatile __u32 *)p; break; \
- case 8: *(__u64 *)res = *(volatile __u64 *)p; break; \
- default: \
- barrier(); \
- __builtin_memcpy((void *)res, (const void *)p, size); \
- barrier(); \
- } \
-})
-
-static __always_inline
-void __read_once_size(const volatile void *p, void *res, int size)
-{
- __READ_ONCE_SIZE;
-}
-
-#ifdef CONFIG_KASAN
-/*
- * We can't declare function 'inline' because __no_sanitize_address confilcts
- * with inlining. Attempt to inline it may cause a build failure.
- * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67368
- * '__maybe_unused' allows us to avoid defined-but-not-used warnings.
- */
-# define __no_kasan_or_inline __no_sanitize_address notrace __maybe_unused
-#else
-# define __no_kasan_or_inline __always_inline
-#endif
-
-static __no_kasan_or_inline
-void __read_once_size_nocheck(const volatile void *p, void *res, int size)
-{
- __READ_ONCE_SIZE;
-}
-
-static __always_inline void __write_once_size(volatile void *p, void *res, int size)
-{
- switch (size) {
- case 1: *(volatile __u8 *)p = *(__u8 *)res; break;
- case 2: *(volatile __u16 *)p = *(__u16 *)res; break;
- case 4: *(volatile __u32 *)p = *(__u32 *)res; break;
- case 8: *(volatile __u64 *)p = *(__u64 *)res; break;
- default:
- barrier();
- __builtin_memcpy((void *)p, (const void *)res, size);
- barrier();
- }
-}
-
/*
* Prevent the compiler from merging or refetching reads or writes. The
* compiler is also forbidden from reordering successive instances of
@@ -293,11 +239,7 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
* statements.
*
* These two macros will also work on aggregate data types like structs or
- * unions. If the size of the accessed data type exceeds the word size of
- * the machine (e.g., 32 bits or 64 bits) READ_ONCE() and WRITE_ONCE() will
- * fall back to memcpy(). There's at least two memcpy()s: one for the
- * __builtin_memcpy() and then one for the macro doing the copy of variable
- * - '__u' allocated on the stack.
+ * unions.
*
* Their two major use cases are: (1) Mediating communication between
* process-level code and irq/NMI handlers, all running on the same CPU,
@@ -309,23 +251,69 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
#include <asm/barrier.h>
#include <linux/kasan-checks.h>
-#define __READ_ONCE(x, check) \
+/*
+ * Use __READ_ONCE() instead of READ_ONCE() if you do not require any
+ * atomicity or dependency ordering guarantees. Note that this may result
+ * in tears!
+ */
+#define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x))
+
+#define __READ_ONCE_SCALAR(x) \
({ \
- union { typeof(x) __val; char __c[1]; } __u; \
- if (check) \
- __read_once_size(&(x), __u.__c, sizeof(x)); \
- else \
- __read_once_size_nocheck(&(x), __u.__c, sizeof(x)); \
- smp_read_barrier_depends(); /* Enforce dependency ordering from x */ \
- __u.__val; \
+ __unqual_scalar_typeof(x) __x = __READ_ONCE(x); \
+ smp_read_barrier_depends(); \
+ (typeof(x))__x; \
})
-#define READ_ONCE(x) __READ_ONCE(x, 1)
+#define READ_ONCE(x) \
+({ \
+ compiletime_assert_rwonce_type(x); \
+ __READ_ONCE_SCALAR(x); \
+})
+
+#define __WRITE_ONCE(x, val) \
+do { \
+ *(volatile typeof(x) *)&(x) = (val); \
+} while (0)
+
+#define WRITE_ONCE(x, val) \
+do { \
+ compiletime_assert_rwonce_type(x); \
+ __WRITE_ONCE(x, val); \
+} while (0)
+
+#ifdef CONFIG_KASAN
/*
- * Use READ_ONCE_NOCHECK() instead of READ_ONCE() if you need
- * to hide memory access from KASAN.
+ * We can't declare function 'inline' because __no_sanitize_address conflicts
+ * with inlining. Attempt to inline it may cause a build failure.
+ * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67368
+ * '__maybe_unused' allows us to avoid defined-but-not-used warnings.
*/
-#define READ_ONCE_NOCHECK(x) __READ_ONCE(x, 0)
+# define __no_kasan_or_inline __no_sanitize_address notrace __maybe_unused
+#else
+# define __no_kasan_or_inline __always_inline
+#endif
+
+static __no_kasan_or_inline
+unsigned long __read_once_word_nocheck(const void *addr)
+{
+ return __READ_ONCE(*(unsigned long *)addr);
+}
+
+/*
+ * Use READ_ONCE_NOCHECK() instead of READ_ONCE() if you need to load a
+ * word from memory atomically but without telling KASAN. This is usually
+ * used by unwinding code when walking the stack of a running process.
+ */
+#define READ_ONCE_NOCHECK(x) \
+({ \
+ unsigned long __x; \
+ compiletime_assert(sizeof(x) == sizeof(__x), \
+ "Unsupported access size for READ_ONCE_NOCHECK()."); \
+ __x = __read_once_word_nocheck(&(x)); \
+ smp_read_barrier_depends(); \
+ (typeof(x))__x; \
+})
static __no_kasan_or_inline
unsigned long read_word_at_a_time(const void *addr)
@@ -334,14 +322,6 @@ unsigned long read_word_at_a_time(const void *addr)
return *(unsigned long *)addr;
}
-#define WRITE_ONCE(x, val) \
-({ \
- union { typeof(x) __val; char __c[1]; } __u = \
- { .__val = (__force typeof(x)) (val) }; \
- __write_once_size(&(x), __u.__c, sizeof(x)); \
- __u.__val; \
-})
-
#endif /* __KERNEL__ */
/*
@@ -406,6 +386,16 @@ static inline void *offset_to_ptr(const int *off)
compiletime_assert(__native_word(t), \
"Need native word sized stores/loads for atomicity.")
+/*
+ * Yes, this permits 64-bit accesses on 32-bit architectures. These will
+ * actually be atomic in some cases (namely Armv7 + LPAE), but for others we
+ * rely on the access being split into 2x32-bit accesses for a 32-bit quantity
+ * (e.g. a virtual address) and a strong prevailing wind.
+ */
+#define compiletime_assert_rwonce_type(t) \
+ compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
+ "Unsupported access size for {READ,WRITE}_ONCE().")
+
/* &a[0] degrades to a pointer: a different type from an array */
#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
diff --git a/include/linux/compiler_types.h b/include/linux/compiler_types.h
index 6fcf73200b67..d4e1956f903f 100644
--- a/include/linux/compiler_types.h
+++ b/include/linux/compiler_types.h
@@ -218,6 +218,53 @@ struct ftrace_likely_data {
/* Are two types/vars the same type (ignoring qualifiers)? */
#define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
+/*
+ * __unqual_scalar_typeof(x) - Declare an unqualified scalar type, leaving
+ * non-scalar types unchanged.
+ */
+#if (defined(CONFIG_CC_IS_GCC) && CONFIG_GCC_VERSION < 40900) || defined(__CHECKER__)
+/*
+ * We build this out of a couple of helper macros in a vain attempt to
+ * help you keep your lunch down while reading it.
+ */
+#define __pick_scalar_type(x, type, otherwise) \
+ __builtin_choose_expr(__same_type(x, type), (type)0, otherwise)
+
+/*
+ * 'char' is not type-compatible with either 'signed char' or 'unsigned char',
+ * so we include the naked type here as well as the signed/unsigned variants.
+ */
+#define __pick_integer_type(x, type, otherwise) \
+ __pick_scalar_type(x, type, \
+ __pick_scalar_type(x, unsigned type, \
+ __pick_scalar_type(x, signed type, otherwise)))
+
+#define __unqual_scalar_typeof(x) typeof( \
+ __pick_integer_type(x, char, \
+ __pick_integer_type(x, short, \
+ __pick_integer_type(x, int, \
+ __pick_integer_type(x, long, \
+ __pick_integer_type(x, long long, x))))))
+#else
+/*
+ * If supported, prefer C11 _Generic for better compile-times. As above, 'char'
+ * is not type-compatible with 'signed char', and we define a separate case.
+ */
+#define __scalar_type_to_expr_cases(type) \
+ unsigned type: (unsigned type)0, \
+ signed type: (signed type)0
+
+#define __unqual_scalar_typeof(x) typeof( \
+ _Generic((x), \
+ char: (char)0, \
+ __scalar_type_to_expr_cases(char), \
+ __scalar_type_to_expr_cases(short), \
+ __scalar_type_to_expr_cases(int), \
+ __scalar_type_to_expr_cases(long), \
+ __scalar_type_to_expr_cases(long long), \
+ default: (x)))
+#endif
+
/* Is this type a native word size -- useful for atomic operations */
#define __native_word(t) \
(sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 67d5950bd878..3494f6763597 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -367,7 +367,7 @@ struct cpufreq_driver {
/* platform specific boost support code */
bool boost_enabled;
- int (*set_boost)(int state);
+ int (*set_boost)(struct cpufreq_policy *policy, int state);
};
/* flags */
diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h
index 8377afef8806..191772d4a4d7 100644
--- a/include/linux/cpuhotplug.h
+++ b/include/linux/cpuhotplug.h
@@ -102,6 +102,7 @@ enum cpuhp_state {
CPUHP_AP_IRQ_ARMADA_XP_STARTING,
CPUHP_AP_IRQ_BCM2836_STARTING,
CPUHP_AP_IRQ_MIPS_GIC_STARTING,
+ CPUHP_AP_IRQ_RISCV_STARTING,
CPUHP_AP_IRQ_SIFIVE_PLIC_STARTING,
CPUHP_AP_ARM_MVEBU_COHERENCY,
CPUHP_AP_MICROCODE_LOADER,
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 19ef6c88c152..8e1f8f93108f 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1048,6 +1048,7 @@ struct lock_manager_operations {
bool (*lm_break)(struct file_lock *);
int (*lm_change)(struct file_lock *, int, struct list_head *);
void (*lm_setup)(struct file_lock *, void **);
+ bool (*lm_breaker_owns_lease)(struct file_lock *);
};
struct lock_manager {
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index dfbbf7a7208b..e339dac91ee6 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -342,9 +342,8 @@ static inline void arch_ftrace_set_direct_caller(struct pt_regs *regs,
extern int stack_tracer_enabled;
-int stack_trace_sysctl(struct ctl_table *table, int write,
- void __user *buffer, size_t *lenp,
- loff_t *ppos);
+int stack_trace_sysctl(struct ctl_table *table, int write, void *buffer,
+ size_t *lenp, loff_t *ppos);
/* DO NOT MODIFY THIS VARIABLE DIRECTLY! */
DECLARE_PER_CPU(int, disable_stack_tracer);
diff --git a/include/linux/input/gp2ap002a00f.h b/include/linux/input/gp2ap002a00f.h
deleted file mode 100644
index 3614a13a8297..000000000000
--- a/include/linux/input/gp2ap002a00f.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _GP2AP002A00F_H_
-#define _GP2AP002A00F_H_
-
-#include <linux/i2c.h>
-
-#define GP2A_I2C_NAME "gp2ap002a00f"
-
-/**
- * struct gp2a_platform_data - Sharp gp2ap002a00f proximity platform data
- * @vout_gpio: The gpio connected to the object detected pin (VOUT)
- * @wakeup: Set to true if the proximity can wake the device from suspend
- * @hw_setup: Callback for setting up hardware such as gpios and vregs
- * @hw_shutdown: Callback for properly shutting down hardware
- */
-struct gp2a_platform_data {
- int vout_gpio;
- bool wakeup;
- int (*hw_setup)(struct i2c_client *client);
- int (*hw_shutdown)(struct i2c_client *client);
-};
-
-#endif
diff --git a/include/linux/input/mt.h b/include/linux/input/mt.h
index 9e409bb13642..3b8580bd33c1 100644
--- a/include/linux/input/mt.h
+++ b/include/linux/input/mt.h
@@ -100,6 +100,11 @@ static inline bool input_is_mt_axis(int axis)
bool input_mt_report_slot_state(struct input_dev *dev,
unsigned int tool_type, bool active);
+static inline void input_mt_report_slot_inactive(struct input_dev *dev)
+{
+ input_mt_report_slot_state(dev, 0, false);
+}
+
void input_mt_report_finger_count(struct input_dev *dev, int count);
void input_mt_report_pointer_emulation(struct input_dev *dev, bool use_count);
void input_mt_drop_unused(struct input_dev *dev);
diff --git a/include/linux/interconnect.h b/include/linux/interconnect.h
index d8c29049f066..3a63d98613fc 100644
--- a/include/linux/interconnect.h
+++ b/include/linux/interconnect.h
@@ -35,6 +35,7 @@ int icc_enable(struct icc_path *path);
int icc_disable(struct icc_path *path);
int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw);
void icc_set_tag(struct icc_path *path, u32 tag);
+const char *icc_get_name(struct icc_path *path);
#else
@@ -84,6 +85,11 @@ static inline void icc_set_tag(struct icc_path *path, u32 tag)
{
}
+static inline const char *icc_get_name(struct icc_path *path)
+{
+ return NULL;
+}
+
#endif /* CONFIG_INTERCONNECT */
#endif /* __LINUX_INTERCONNECT_H */
diff --git a/include/linux/kthread.h b/include/linux/kthread.h
index 12258ea077cf..65b81e0c494d 100644
--- a/include/linux/kthread.h
+++ b/include/linux/kthread.h
@@ -59,6 +59,7 @@ bool kthread_should_stop(void);
bool kthread_should_park(void);
bool __kthread_should_park(struct task_struct *k);
bool kthread_freezable_should_stop(bool *was_frozen);
+void *kthread_func(struct task_struct *k);
void *kthread_data(struct task_struct *k);
void *kthread_probe_data(struct task_struct *k);
int kthread_park(struct task_struct *k);
diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
index fee7fab5d706..375515803cd8 100644
--- a/include/linux/memory_hotplug.h
+++ b/include/linux/memory_hotplug.h
@@ -318,6 +318,7 @@ extern void try_offline_node(int nid);
extern int offline_pages(unsigned long start_pfn, unsigned long nr_pages);
extern int remove_memory(int nid, u64 start, u64 size);
extern void __remove_memory(int nid, u64 start, u64 size);
+extern int offline_and_remove_memory(int nid, u64 start, u64 size);
#else
static inline void try_offline_node(int nid) {}
diff --git a/include/linux/mtd/bbm.h b/include/linux/mtd/bbm.h
index 886e30441c90..d890805f5494 100644
--- a/include/linux/mtd/bbm.h
+++ b/include/linux/mtd/bbm.h
@@ -98,7 +98,7 @@ struct nand_bbt_descr {
/*
* Flag set by nand_create_default_bbt_descr(), marking that the nand_bbt_descr
- * was allocated dynamicaly and must be freed in nand_release(). Has no meaning
+ * was allocated dynamicaly and must be freed in nand_cleanup(). Has no meaning
* in nand_chip.bbt_options.
*/
#define NAND_BBT_DYNAMICSTRUCT 0x80000000
diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h
index c98a21108688..fd1ecb821106 100644
--- a/include/linux/mtd/cfi.h
+++ b/include/linux/mtd/cfi.h
@@ -138,7 +138,7 @@ struct cfi_ident {
uint16_t InterfaceDesc;
uint16_t MaxBufWriteSize;
uint8_t NumEraseRegions;
- uint32_t EraseRegionInfo[0]; /* Not host ordered */
+ uint32_t EraseRegionInfo[]; /* Not host ordered */
} __packed;
/* Extended Query Structure for both PRI and ALT */
@@ -165,7 +165,7 @@ struct cfi_pri_intelext {
uint16_t ProtRegAddr;
uint8_t FactProtRegSize;
uint8_t UserProtRegSize;
- uint8_t extra[0];
+ uint8_t extra[];
} __packed;
struct cfi_intelext_otpinfo {
@@ -286,7 +286,7 @@ struct cfi_private {
map_word sector_erase_cmd;
unsigned long chipshift; /* Because they're of the same type */
const char *im_name; /* inter_module name for cmdset_setup */
- struct flchip chips[0]; /* per-chip data structure for each chip */
+ struct flchip chips[]; /* per-chip data structure for each chip */
};
uint32_t cfi_build_cmd_addr(uint32_t cmd_ofs,
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 2d1f4a61f4ac..157357ec1441 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -200,6 +200,8 @@ struct mtd_debug_info {
*
* @node: list node used to add an MTD partition to the parent partition list
* @offset: offset of the partition relatively to the parent offset
+ * @size: partition size. Should be equal to mtd->size unless
+ * MTD_SLC_ON_MLC_EMULATION is set
* @flags: original flags (before the mtdpart logic decided to tweak them based
* on flash constraints, like eraseblock/pagesize alignment)
*
@@ -209,6 +211,7 @@ struct mtd_debug_info {
struct mtd_part {
struct list_head node;
u64 offset;
+ u64 size;
u32 flags;
};
@@ -622,7 +625,9 @@ static inline uint32_t mtd_mod_by_ws(uint64_t sz, struct mtd_info *mtd)
static inline int mtd_wunit_per_eb(struct mtd_info *mtd)
{
- return mtd->erasesize / mtd->writesize;
+ struct mtd_info *master = mtd_get_master(mtd);
+
+ return master->erasesize / mtd->writesize;
}
static inline int mtd_offset_to_wunit(struct mtd_info *mtd, loff_t offs)
diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h
index e545c050d3e8..b74a539ec581 100644
--- a/include/linux/mtd/partitions.h
+++ b/include/linux/mtd/partitions.h
@@ -37,6 +37,7 @@
* master MTD flag set for the corresponding MTD partition.
* For example, to force a read-only partition, simply adding
* MTD_WRITEABLE to the mask_flags will do the trick.
+ * add_flags: contains flags to add to the parent flags
*
* Note: writeable partitions require their size and offset be
* erasesize aligned (e.g. use MTDPART_OFS_NEXTBLK).
@@ -48,6 +49,7 @@ struct mtd_partition {
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 */
+ uint32_t add_flags; /* flags to add to the partition */
struct device_node *of_node;
};
diff --git a/include/linux/mtd/qinfo.h b/include/linux/mtd/qinfo.h
index df5b9fddea16..2e3f43788d48 100644
--- a/include/linux/mtd/qinfo.h
+++ b/include/linux/mtd/qinfo.h
@@ -24,7 +24,7 @@ struct lpddr_private {
struct qinfo_chip *qinfo;
int numchips;
unsigned long chipshift;
- struct flchip chips[0];
+ struct flchip chips[];
};
/* qinfo_query_info structure contains request information for
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index 1e76196f9829..65b1c1c18b41 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -83,14 +83,14 @@ struct nand_chip;
/*
* Constants for ECC_MODES
*/
-typedef enum {
+enum nand_ecc_mode {
+ NAND_ECC_INVALID,
NAND_ECC_NONE,
NAND_ECC_SOFT,
NAND_ECC_HW,
NAND_ECC_HW_SYNDROME,
- NAND_ECC_HW_OOB_FIRST,
NAND_ECC_ON_DIE,
-} nand_ecc_modes_t;
+};
enum nand_ecc_algo {
NAND_ECC_UNKNOWN,
@@ -119,85 +119,73 @@ enum nand_ecc_algo {
#define NAND_ECC_MAXIMIZE BIT(1)
/*
+ * Option constants for bizarre disfunctionality and real
+ * features.
+ */
+
+/* Buswidth is 16 bit */
+#define NAND_BUSWIDTH_16 BIT(1)
+
+/*
* When using software implementation of Hamming, we can specify which byte
* ordering should be used.
*/
#define NAND_ECC_SOFT_HAMMING_SM_ORDER BIT(2)
-/*
- * Option constants for bizarre disfunctionality and real
- * features.
- */
-/* Buswidth is 16 bit */
-#define NAND_BUSWIDTH_16 0x00000002
/* Chip has cache program function */
-#define NAND_CACHEPRG 0x00000008
+#define NAND_CACHEPRG BIT(3)
+/* Options valid for Samsung large page devices */
+#define NAND_SAMSUNG_LP_OPTIONS NAND_CACHEPRG
+
/*
* Chip requires ready check on read (for auto-incremented sequential read).
* True only for small page devices; large page devices do not support
* autoincrement.
*/
-#define NAND_NEED_READRDY 0x00000100
+#define NAND_NEED_READRDY BIT(8)
/* Chip does not allow subpage writes */
-#define NAND_NO_SUBPAGE_WRITE 0x00000200
+#define NAND_NO_SUBPAGE_WRITE BIT(9)
/* Device is one of 'new' xD cards that expose fake nand command set */
-#define NAND_BROKEN_XD 0x00000400
+#define NAND_BROKEN_XD BIT(10)
/* Device behaves just like nand, but is readonly */
-#define NAND_ROM 0x00000800
+#define NAND_ROM BIT(11)
/* Device supports subpage reads */
-#define NAND_SUBPAGE_READ 0x00001000
+#define NAND_SUBPAGE_READ BIT(12)
+/* Macros to identify the above */
+#define NAND_HAS_SUBPAGE_READ(chip) ((chip->options & NAND_SUBPAGE_READ))
/*
* Some MLC NANDs need data scrambling to limit bitflips caused by repeated
* patterns.
*/
-#define NAND_NEED_SCRAMBLING 0x00002000
+#define NAND_NEED_SCRAMBLING BIT(13)
/* Device needs 3rd row address cycle */
-#define NAND_ROW_ADDR_3 0x00004000
-
-/* Options valid for Samsung large page devices */
-#define NAND_SAMSUNG_LP_OPTIONS NAND_CACHEPRG
-
-/* Macros to identify the above */
-#define NAND_HAS_SUBPAGE_READ(chip) ((chip->options & NAND_SUBPAGE_READ))
-
-/*
- * There are different places where the manufacturer stores the factory bad
- * block markers.
- *
- * Position within the block: Each of these pages needs to be checked for a
- * bad block marking pattern.
- */
-#define NAND_BBM_FIRSTPAGE 0x01000000
-#define NAND_BBM_SECONDPAGE 0x02000000
-#define NAND_BBM_LASTPAGE 0x04000000
-
-/* Position within the OOB data of the page */
-#define NAND_BBM_POS_SMALL 5
-#define NAND_BBM_POS_LARGE 0
+#define NAND_ROW_ADDR_3 BIT(14)
/* Non chip related options */
/* This option skips the bbt scan during initialization. */
-#define NAND_SKIP_BBTSCAN 0x00010000
+#define NAND_SKIP_BBTSCAN BIT(16)
/* Chip may not exist, so silence any errors in scan */
-#define NAND_SCAN_SILENT_NODEV 0x00040000
+#define NAND_SCAN_SILENT_NODEV BIT(18)
+
/*
* Autodetect nand buswidth with readid/onfi.
* This suppose the driver will configure the hardware in 8 bits mode
* when calling nand_scan_ident, and update its configuration
* before calling nand_scan_tail.
*/
-#define NAND_BUSWIDTH_AUTO 0x00080000
+#define NAND_BUSWIDTH_AUTO BIT(19)
+
/*
* This option could be defined by controller drivers to protect against
* kmap'ed, vmalloc'ed highmem buffers being passed from upper layers
*/
-#define NAND_USE_BOUNCE_BUFFER 0x00100000
+#define NAND_USES_DMA BIT(20)
/*
* In case your controller is implementing ->legacy.cmd_ctrl() and is relying
@@ -207,26 +195,49 @@ enum nand_ecc_algo {
* If your controller already takes care of this delay, you don't need to set
* this flag.
*/
-#define NAND_WAIT_TCCS 0x00200000
+#define NAND_WAIT_TCCS BIT(21)
/*
* Whether the NAND chip is a boot medium. Drivers might use this information
* to select ECC algorithms supported by the boot ROM or similar restrictions.
*/
-#define NAND_IS_BOOT_MEDIUM 0x00400000
+#define NAND_IS_BOOT_MEDIUM BIT(22)
/*
* Do not try to tweak the timings at runtime. This is needed when the
* controller initializes the timings on itself or when it relies on
* configuration done by the bootloader.
*/
-#define NAND_KEEP_TIMINGS 0x00800000
+#define NAND_KEEP_TIMINGS BIT(23)
+
+/*
+ * There are different places where the manufacturer stores the factory bad
+ * block markers.
+ *
+ * Position within the block: Each of these pages needs to be checked for a
+ * bad block marking pattern.
+ */
+#define NAND_BBM_FIRSTPAGE BIT(24)
+#define NAND_BBM_SECONDPAGE BIT(25)
+#define NAND_BBM_LASTPAGE BIT(26)
+
+/*
+ * Some controllers with pipelined ECC engines override the BBM marker with
+ * data or ECC bytes, thus making bad block detection through bad block marker
+ * impossible. Let's flag those chips so the core knows it shouldn't check the
+ * BBM and consider all blocks good.
+ */
+#define NAND_NO_BBM_QUIRK BIT(27)
/* Cell info constants */
#define NAND_CI_CHIPNR_MSK 0x03
#define NAND_CI_CELLTYPE_MSK 0x0C
#define NAND_CI_CELLTYPE_SHIFT 2
+/* Position within the OOB data of the page */
+#define NAND_BBM_POS_SMALL 5
+#define NAND_BBM_POS_LARGE 0
+
/**
* struct nand_parameters - NAND generic parameters from the parameter page
* @model: Model name
@@ -351,7 +362,7 @@ static const struct nand_ecc_caps __name = { \
* @write_oob: function to write chip OOB data
*/
struct nand_ecc_ctrl {
- nand_ecc_modes_t mode;
+ enum nand_ecc_mode mode;
enum nand_ecc_algo algo;
int steps;
int size;
@@ -491,13 +502,17 @@ enum nand_data_interface_type {
/**
* struct nand_data_interface - NAND interface timing
* @type: type of the timing
- * @timings: The timing, type according to @type
+ * @timings: The timing information
+ * @timings.mode: Timing mode as defined in the specification
* @timings.sdr: Use it when @type is %NAND_SDR_IFACE.
*/
struct nand_data_interface {
enum nand_data_interface_type type;
- union {
- struct nand_sdr_timings sdr;
+ struct nand_timings {
+ unsigned int mode;
+ union {
+ struct nand_sdr_timings sdr;
+ };
} timings;
};
@@ -694,6 +709,7 @@ struct nand_op_instr {
/**
* struct nand_subop - a sub operation
+ * @cs: the CS line to select for this NAND sub-operation
* @instrs: array of instructions
* @ninstrs: length of the @instrs array
* @first_instr_start_off: offset to start from for the first instruction
@@ -709,6 +725,7 @@ struct nand_op_instr {
* controller driver.
*/
struct nand_subop {
+ unsigned int cs;
const struct nand_op_instr *instrs;
unsigned int ninstrs;
unsigned int first_instr_start_off;
@@ -1321,13 +1338,17 @@ int nand_read_oob_std(struct nand_chip *chip, int page);
int nand_get_set_features_notsupp(struct nand_chip *chip, int addr,
u8 *subfeature_param);
-/* Default read_page_raw implementation */
+/* read_page_raw implementations */
int nand_read_page_raw(struct nand_chip *chip, uint8_t *buf, int oob_required,
int page);
+int nand_monolithic_read_page_raw(struct nand_chip *chip, uint8_t *buf,
+ int oob_required, int page);
-/* Default write_page_raw implementation */
+/* write_page_raw implementations */
int nand_write_page_raw(struct nand_chip *chip, const uint8_t *buf,
int oob_required, int page);
+int nand_monolithic_write_page_raw(struct nand_chip *chip, const uint8_t *buf,
+ int oob_required, int page);
/* Reset and initialize a NAND device */
int nand_reset(struct nand_chip *chip, int chipnr);
@@ -1356,7 +1377,7 @@ int nand_change_write_column_op(struct nand_chip *chip,
unsigned int offset_in_page, const void *buf,
unsigned int len, bool force_8bit);
int nand_read_data_op(struct nand_chip *chip, void *buf, unsigned int len,
- bool force_8bit);
+ bool force_8bit, bool check_only);
int nand_write_data_op(struct nand_chip *chip, const void *buf,
unsigned int len, bool force_8bit);
@@ -1377,8 +1398,6 @@ void nand_wait_ready(struct nand_chip *chip);
* sucessful nand_scan().
*/
void nand_cleanup(struct nand_chip *chip);
-/* Unregister the MTD device and calls nand_cleanup() */
-void nand_release(struct nand_chip *chip);
/*
* External helper for controller drivers that have to implement the WAITRDY
@@ -1393,6 +1412,10 @@ int nand_gpio_waitrdy(struct nand_chip *chip, struct gpio_desc *gpiod,
void nand_select_target(struct nand_chip *chip, unsigned int cs);
void nand_deselect_target(struct nand_chip *chip);
+/* Bitops */
+void nand_extract_bits(u8 *dst, unsigned int dst_off, const u8 *src,
+ unsigned int src_off, unsigned int nbits);
+
/**
* nand_get_data_buf() - Get the internal page buffer
* @chip: NAND chip object
diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h
index 1e2af0ec1f03..60bac2c0ec45 100644
--- a/include/linux/mtd/spi-nor.h
+++ b/include/linux/mtd/spi-nor.h
@@ -20,6 +20,7 @@
*/
/* Flash opcodes. */
+#define SPINOR_OP_WRDI 0x04 /* Write disable */
#define SPINOR_OP_WREN 0x06 /* Write enable */
#define SPINOR_OP_RDSR 0x05 /* Read status register */
#define SPINOR_OP_WRSR 0x01 /* Write status register 1 byte */
@@ -80,7 +81,6 @@
/* Used for SST flashes only. */
#define SPINOR_OP_BP 0x02 /* Byte program */
-#define SPINOR_OP_WRDI 0x04 /* Write disable */
#define SPINOR_OP_AAI_WP 0xad /* Auto address increment word program */
/* Used for S3AN flashes only */
@@ -302,7 +302,7 @@ struct spi_nor;
* @read: read data from the SPI NOR.
* @write: write data to the SPI NOR.
* @erase: erase a sector of the SPI NOR at the offset @offs; if
- * not provided by the driver, spi-nor will send the erase
+ * not provided by the driver, SPI NOR will send the erase
* opcode via write_reg().
*/
struct spi_nor_controller_ops {
@@ -327,16 +327,16 @@ struct spi_nor_manufacturer;
struct spi_nor_flash_parameter;
/**
- * struct spi_nor - Structure for defining a the SPI NOR layer
- * @mtd: point to a mtd_info structure
+ * struct spi_nor - Structure for defining the SPI NOR layer
+ * @mtd: an mtd_info structure
* @lock: the lock for the read/write/erase/lock/unlock operations
- * @dev: point to a spi device, or a spi nor controller device.
- * @spimem: point to the spi mem device
+ * @dev: pointer to an SPI device or an SPI NOR controller device
+ * @spimem: pointer to the SPI memory device
* @bouncebuf: bounce buffer used when the buffer passed by the MTD
* layer is not DMA-able
* @bouncebuf_size: size of the bounce buffer
- * @info: spi-nor part JDEC MFR id and other info
- * @manufacturer: spi-nor manufacturer
+ * @info: SPI NOR part JEDEC MFR ID and other info
+ * @manufacturer: SPI NOR manufacturer
* @page_size: the page size of the SPI NOR
* @addr_width: number of address bytes
* @erase_opcode: the opcode for erasing a sector
@@ -344,17 +344,17 @@ struct spi_nor_flash_parameter;
* @read_dummy: the dummy needed by the read operation
* @program_opcode: the program opcode
* @sst_write_second: used by the SST write operation
- * @flags: flag options for the current SPI-NOR (SNOR_F_*)
+ * @flags: flag options for the current SPI NOR (SNOR_F_*)
* @read_proto: the SPI protocol for read operations
* @write_proto: the SPI protocol for write operations
- * @reg_proto the SPI protocol for read_reg/write_reg/erase operations
+ * @reg_proto: the SPI protocol for read_reg/write_reg/erase operations
* @controller_ops: SPI NOR controller driver specific operations.
- * @params: [FLASH-SPECIFIC] SPI-NOR flash parameters and settings.
+ * @params: [FLASH-SPECIFIC] SPI NOR flash parameters and settings.
* The structure includes legacy flash parameters and
* settings that can be overwritten by the spi_nor_fixups
* hooks, or dynamically when parsing the SFDP tables.
* @dirmap: pointers to struct spi_mem_dirmap_desc for reads/writes.
- * @priv: the private data
+ * @priv: pointer to the private data
*/
struct spi_nor {
struct mtd_info mtd;
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 82d8fb422092..4dba3c948932 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -38,7 +38,7 @@ struct nfs4_ace {
struct nfs4_acl {
uint32_t naces;
- struct nfs4_ace aces[0];
+ struct nfs4_ace aces[];
};
#define NFS4_MAXLABELLEN 2048
@@ -295,7 +295,7 @@ static inline bool seqid_mutating_err(u32 err)
case NFS4ERR_NOFILEHANDLE:
case NFS4ERR_MOVED:
return false;
- };
+ }
return true;
}
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 73eda45f1cfd..6ee9119acc5d 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -230,6 +230,7 @@ struct nfs4_copy_state {
#define NFS_INO_INVALID_OTHER BIT(12) /* other attrs are invalid */
#define NFS_INO_DATA_INVAL_DEFER \
BIT(13) /* Deferred cache invalidation */
+#define NFS_INO_INVALID_BLOCKS BIT(14) /* cached blocks are invalid */
#define NFS_INO_INVALID_ATTR (NFS_INO_INVALID_CHANGE \
| NFS_INO_INVALID_CTIME \
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index e5f3e7d8d3d5..5fd0a9ef425f 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1227,7 +1227,7 @@ struct nfs4_secinfo4 {
struct nfs4_secinfo_flavors {
unsigned int num_flavors;
- struct nfs4_secinfo4 flavors[0];
+ struct nfs4_secinfo4 flavors[];
};
struct nfs4_secinfo_arg {
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 222f6f7b2bb3..6be1aa559b1e 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -777,6 +777,16 @@ PAGE_TYPE_OPS(Buddy, buddy)
* not onlined when onlining the section).
* The content of these pages is effectively stale. Such pages should not
* be touched (read/write/dump/save) except by their owner.
+ *
+ * If a driver wants to allow to offline unmovable PageOffline() pages without
+ * putting them back to the buddy, it can do so via the memory notifier by
+ * decrementing the reference count in MEM_GOING_OFFLINE and incrementing the
+ * reference count in MEM_CANCEL_OFFLINE. When offlining, the PageOffline()
+ * pages (now with a reference count of zero) are treated like free pages,
+ * allowing the containing memory block to get offlined. A driver that
+ * relies on this feature is aware that re-onlining the memory block will
+ * require to re-set the pages PageOffline() and not giving them to the
+ * buddy via online_page_callback_t.
*/
PAGE_TYPE_OPS(Offline, offline)
diff --git a/include/linux/platform_data/mtd-davinci.h b/include/linux/platform_data/mtd-davinci.h
index 08e639e047e5..03e92c71b3fa 100644
--- a/include/linux/platform_data/mtd-davinci.h
+++ b/include/linux/platform_data/mtd-davinci.h
@@ -68,7 +68,7 @@ struct davinci_nand_pdata { /* platform_data */
* Newer ones also support 4-bit ECC, but are awkward
* using it with large page chips.
*/
- nand_ecc_modes_t ecc_mode;
+ enum nand_ecc_mode ecc_mode;
u8 ecc_bits;
/* e.g. NAND_BUSWIDTH_16 */
diff --git a/include/linux/platform_data/mtd-nand-s3c2410.h b/include/linux/platform_data/mtd-nand-s3c2410.h
index deb849bcf0ec..08675b16f9e1 100644
--- a/include/linux/platform_data/mtd-nand-s3c2410.h
+++ b/include/linux/platform_data/mtd-nand-s3c2410.h
@@ -49,7 +49,7 @@ struct s3c2410_platform_nand {
unsigned int ignore_unset_ecc:1;
- nand_ecc_modes_t ecc_mode;
+ enum nand_ecc_mode ecc_mode;
int nr_sets;
struct s3c2410_nand_set *sets;
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index 747861816f4f..d5c4a329321d 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -42,6 +42,18 @@ struct dev_pm_opp_supply {
};
/**
+ * struct dev_pm_opp_icc_bw - Interconnect bandwidth values
+ * @avg: Average bandwidth corresponding to this OPP (in icc units)
+ * @peak: Peak bandwidth corresponding to this OPP (in icc units)
+ *
+ * This structure stores the bandwidth values for a single interconnect path.
+ */
+struct dev_pm_opp_icc_bw {
+ u32 avg;
+ u32 peak;
+};
+
+/**
* struct dev_pm_opp_info - OPP freq/voltage/current values
* @rate: Target clk rate in hz
* @supplies: Array of voltage/current values for all power supplies
@@ -360,6 +372,7 @@ int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpuma
struct device_node *dev_pm_opp_of_get_opp_desc_node(struct device *dev);
struct device_node *dev_pm_opp_get_of_node(struct dev_pm_opp *opp);
int of_get_required_opp_performance_state(struct device_node *np, int index);
+int dev_pm_opp_of_find_icc_paths(struct device *dev, struct opp_table *opp_table);
void dev_pm_opp_of_register_em(struct cpumask *cpus);
#else
static inline int dev_pm_opp_of_add_table(struct device *dev)
@@ -408,6 +421,11 @@ static inline int of_get_required_opp_performance_state(struct device_node *np,
{
return -ENOTSUPP;
}
+
+static inline int dev_pm_opp_of_find_icc_paths(struct device *dev, struct opp_table *opp_table)
+{
+ return -ENOTSUPP;
+}
#endif
#endif /* __LINUX_OPP_H__ */
diff --git a/include/linux/regset.h b/include/linux/regset.h
index bf0243779738..46d6ae68c455 100644
--- a/include/linux/regset.h
+++ b/include/linux/regset.h
@@ -320,7 +320,7 @@ static inline int user_regset_copyout_zero(unsigned int *pos,
if (*kbuf) {
memset(*kbuf, 0, copy);
*kbuf += copy;
- } else if (__clear_user(*ubuf, copy))
+ } else if (clear_user(*ubuf, copy))
return -EFAULT;
else
*ubuf += copy;
diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h
index 4f6b28487f28..98da816b5fc2 100644
--- a/include/linux/sunrpc/auth.h
+++ b/include/linux/sunrpc/auth.h
@@ -76,7 +76,7 @@ struct rpc_auth {
unsigned int au_verfsize; /* size of reply verifier */
unsigned int au_ralign; /* words before UL header */
- unsigned int au_flags;
+ unsigned long au_flags;
const struct rpc_authops *au_ops;
rpc_authflavor_t au_flavor; /* pseudoflavor (note may
* differ from the flavor in
@@ -89,7 +89,8 @@ struct rpc_auth {
};
/* rpc_auth au_flags */
-#define RPCAUTH_AUTH_DATATOUCH 0x00000002
+#define RPCAUTH_AUTH_DATATOUCH (1)
+#define RPCAUTH_AUTH_UPDATE_SLACK (2)
struct rpc_auth_create_args {
rpc_authflavor_t pseudoflavor;
diff --git a/include/linux/sunrpc/gss_api.h b/include/linux/sunrpc/gss_api.h
index bc07e51f20d1..bf4ac8a0268c 100644
--- a/include/linux/sunrpc/gss_api.h
+++ b/include/linux/sunrpc/gss_api.h
@@ -84,6 +84,7 @@ struct pf_desc {
u32 service;
char *name;
char *auth_domain_name;
+ struct auth_domain *domain;
bool datatouch;
};
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index fd390894a584..386628b36bc7 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -254,6 +254,7 @@ struct svc_rqst {
struct page * *rq_page_end; /* one past the last page */
struct kvec rq_vec[RPCSVC_MAXPAGES]; /* generally useful.. */
+ struct bio_vec rq_bvec[RPCSVC_MAXPAGES];
__be32 rq_xid; /* transmission id */
u32 rq_prog; /* program number */
@@ -299,6 +300,7 @@ struct svc_rqst {
struct net *rq_bc_net; /* pointer to backchannel's
* net namespace
*/
+ void ** rq_lease_breaker; /* The v4 client breaking a lease */
};
#define SVC_NET(rqst) (rqst->rq_xprt ? rqst->rq_xprt->xpt_net : rqst->rq_bc_net)
diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h
index cbcfbd0521e3..7ed82625dc0b 100644
--- a/include/linux/sunrpc/svc_rdma.h
+++ b/include/linux/sunrpc/svc_rdma.h
@@ -48,7 +48,6 @@
#include <linux/sunrpc/rpc_rdma.h>
#include <rdma/ib_verbs.h>
#include <rdma/rdma_cm.h>
-#define SVCRDMA_DEBUG
/* Default and maximum inline threshold sizes */
enum {
@@ -160,9 +159,8 @@ struct svc_rdma_send_ctxt {
};
/* svc_rdma_backchannel.c */
-extern int svc_rdma_handle_bc_reply(struct rpc_xprt *xprt,
- __be32 *rdma_resp,
- struct xdr_buf *rcvbuf);
+extern void svc_rdma_handle_bc_reply(struct svc_rqst *rqstp,
+ struct svc_rdma_recv_ctxt *rctxt);
/* svc_rdma_recvfrom.c */
extern void svc_rdma_recv_ctxts_destroy(struct svcxprt_rdma *rdma);
diff --git a/include/linux/sunrpc/svc_xprt.h b/include/linux/sunrpc/svc_xprt.h
index 9e1e046de176..aca35ab5cff2 100644
--- a/include/linux/sunrpc/svc_xprt.h
+++ b/include/linux/sunrpc/svc_xprt.h
@@ -117,6 +117,12 @@ static inline int register_xpt_user(struct svc_xprt *xpt, struct svc_xpt_user *u
return 0;
}
+static inline bool svc_xprt_is_dead(const struct svc_xprt *xprt)
+{
+ return (test_bit(XPT_DEAD, &xprt->xpt_flags) != 0) ||
+ (test_bit(XPT_CLOSE, &xprt->xpt_flags) != 0);
+}
+
int svc_reg_xprt_class(struct svc_xprt_class *);
void svc_unreg_xprt_class(struct svc_xprt_class *);
void svc_xprt_init(struct net *, struct svc_xprt_class *, struct svc_xprt *,
diff --git a/include/linux/sunrpc/svcauth_gss.h b/include/linux/sunrpc/svcauth_gss.h
index ca39a388dc22..f09c82b0a7ae 100644
--- a/include/linux/sunrpc/svcauth_gss.h
+++ b/include/linux/sunrpc/svcauth_gss.h
@@ -20,7 +20,8 @@ int gss_svc_init(void);
void gss_svc_shutdown(void);
int gss_svc_init_net(struct net *net);
void gss_svc_shutdown_net(struct net *net);
-int svcauth_gss_register_pseudoflavor(u32 pseudoflavor, char * name);
+struct auth_domain *svcauth_gss_register_pseudoflavor(u32 pseudoflavor,
+ char *name);
u32 svcauth_gss_flavor(struct auth_domain *dom);
#endif /* _LINUX_SUNRPC_SVCAUTH_GSS_H */
diff --git a/include/linux/sunrpc/svcsock.h b/include/linux/sunrpc/svcsock.h
index 771baadaee9d..b7ac7fe68306 100644
--- a/include/linux/sunrpc/svcsock.h
+++ b/include/linux/sunrpc/svcsock.h
@@ -28,7 +28,7 @@ struct svc_sock {
/* private TCP part */
/* On-the-wire fragment header: */
- __be32 sk_reclen;
+ __be32 sk_marker;
/* As we receive a record, this includes the length received so
* far (including the fragment header): */
u32 sk_tcplen;
@@ -41,12 +41,12 @@ struct svc_sock {
static inline u32 svc_sock_reclen(struct svc_sock *svsk)
{
- return ntohl(svsk->sk_reclen) & RPC_FRAGMENT_SIZE_MASK;
+ return be32_to_cpu(svsk->sk_marker) & RPC_FRAGMENT_SIZE_MASK;
}
static inline u32 svc_sock_final_rec(struct svc_sock *svsk)
{
- return ntohl(svsk->sk_reclen) & RPC_LAST_STREAM_FRAGMENT;
+ return be32_to_cpu(svsk->sk_marker) & RPC_LAST_STREAM_FRAGMENT;
}
/*
diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h
index 5453af87a33e..239db794357c 100644
--- a/include/linux/vdpa.h
+++ b/include/linux/vdpa.h
@@ -18,6 +18,16 @@ struct vdpa_callback {
};
/**
+ * vDPA notification area
+ * @addr: base address of the notification area
+ * @size: size of the notification area
+ */
+struct vdpa_notification_area {
+ resource_size_t addr;
+ resource_size_t size;
+};
+
+/**
* vDPA device - representation of a vDPA device
* @dev: underlying device
* @dma_dev: the actual device that is performing DMA
@@ -73,6 +83,10 @@ struct vdpa_device {
* @vdev: vdpa device
* @idx: virtqueue index
* Returns virtqueue state (last_avail_idx)
+ * @get_vq_notification: Get the notification area for a virtqueue
+ * @vdev: vdpa device
+ * @idx: virtqueue index
+ * Returns the notifcation area
* @get_vq_align: Get the virtqueue align requirement
* for the device
* @vdev: vdpa device
@@ -162,6 +176,8 @@ struct vdpa_config_ops {
bool (*get_vq_ready)(struct vdpa_device *vdev, u16 idx);
int (*set_vq_state)(struct vdpa_device *vdev, u16 idx, u64 state);
u64 (*get_vq_state)(struct vdpa_device *vdev, u16 idx);
+ struct vdpa_notification_area
+ (*get_vq_notification)(struct vdpa_device *vdev, u16 idx);
/* Device ops */
u32 (*get_vq_align)(struct vdpa_device *vdev);
diff --git a/include/linux/vringh.h b/include/linux/vringh.h
index 9e2763d7c159..59bd50f99291 100644
--- a/include/linux/vringh.h
+++ b/include/linux/vringh.h
@@ -105,9 +105,9 @@ struct vringh_kiov {
/* Helpers for userspace vrings. */
int vringh_init_user(struct vringh *vrh, u64 features,
unsigned int num, bool weak_barriers,
- struct vring_desc __user *desc,
- struct vring_avail __user *avail,
- struct vring_used __user *used);
+ vring_desc_t __user *desc,
+ vring_avail_t __user *avail,
+ vring_used_t __user *used);
static inline void vringh_iov_init(struct vringh_iov *iov,
struct iovec *iovec, unsigned num)
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index e1476775769c..81ee17594c32 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -392,13 +392,12 @@ void *neigh_seq_next(struct seq_file *, void *, loff_t *);
void neigh_seq_stop(struct seq_file *, void *);
int neigh_proc_dointvec(struct ctl_table *ctl, int write,
- void __user *buffer, size_t *lenp, loff_t *ppos);
+ void *buffer, size_t *lenp, loff_t *ppos);
int neigh_proc_dointvec_jiffies(struct ctl_table *ctl, int write,
- void __user *buffer,
+ void *buffer,
size_t *lenp, loff_t *ppos);
int neigh_proc_dointvec_ms_jiffies(struct ctl_table *ctl, int write,
- void __user *buffer,
- size_t *lenp, loff_t *ppos);
+ void *buffer, size_t *lenp, loff_t *ppos);
int neigh_sysctl_register(struct net_device *dev, struct neigh_parms *p,
proc_handler *proc_handler);
diff --git a/include/trace/events/rpcgss.h b/include/trace/events/rpcgss.h
index 32d88c4fb063..b9b51a4b1db1 100644
--- a/include/trace/events/rpcgss.h
+++ b/include/trace/events/rpcgss.h
@@ -17,6 +17,16 @@
** GSS-API related trace events
**/
+TRACE_DEFINE_ENUM(RPC_GSS_SVC_NONE);
+TRACE_DEFINE_ENUM(RPC_GSS_SVC_INTEGRITY);
+TRACE_DEFINE_ENUM(RPC_GSS_SVC_PRIVACY);
+
+#define show_gss_service(x) \
+ __print_symbolic(x, \
+ { RPC_GSS_SVC_NONE, "none" }, \
+ { RPC_GSS_SVC_INTEGRITY, "integrity" }, \
+ { RPC_GSS_SVC_PRIVACY, "privacy" })
+
TRACE_DEFINE_ENUM(GSS_S_BAD_MECH);
TRACE_DEFINE_ENUM(GSS_S_BAD_NAME);
TRACE_DEFINE_ENUM(GSS_S_BAD_NAMETYPE);
@@ -126,6 +136,40 @@ DEFINE_GSSAPI_EVENT(verify_mic);
DEFINE_GSSAPI_EVENT(wrap);
DEFINE_GSSAPI_EVENT(unwrap);
+DECLARE_EVENT_CLASS(rpcgss_ctx_class,
+ TP_PROTO(
+ const struct gss_cred *gc
+ ),
+
+ TP_ARGS(gc),
+
+ TP_STRUCT__entry(
+ __field(const void *, cred)
+ __field(unsigned long, service)
+ __string(principal, gc->gc_principal)
+ ),
+
+ TP_fast_assign(
+ __entry->cred = gc;
+ __entry->service = gc->gc_service;
+ __assign_str(principal, gc->gc_principal)
+ ),
+
+ TP_printk("cred=%p service=%s principal='%s'",
+ __entry->cred, show_gss_service(__entry->service),
+ __get_str(principal))
+);
+
+#define DEFINE_CTX_EVENT(name) \
+ DEFINE_EVENT(rpcgss_ctx_class, rpcgss_ctx_##name, \
+ TP_PROTO( \
+ const struct gss_cred *gc \
+ ), \
+ TP_ARGS(gc))
+
+DEFINE_CTX_EVENT(init);
+DEFINE_CTX_EVENT(destroy);
+
TRACE_EVENT(rpcgss_svc_accept_upcall,
TP_PROTO(
__be32 xid,
@@ -291,6 +335,40 @@ TRACE_EVENT(rpcgss_need_reencode,
__entry->ret ? "" : "un")
);
+TRACE_EVENT(rpcgss_update_slack,
+ TP_PROTO(
+ const struct rpc_task *task,
+ const struct rpc_auth *auth
+ ),
+
+ TP_ARGS(task, auth),
+
+ TP_STRUCT__entry(
+ __field(unsigned int, task_id)
+ __field(unsigned int, client_id)
+ __field(u32, xid)
+ __field(const void *, auth)
+ __field(unsigned int, rslack)
+ __field(unsigned int, ralign)
+ __field(unsigned int, verfsize)
+ ),
+
+ TP_fast_assign(
+ __entry->task_id = task->tk_pid;
+ __entry->client_id = task->tk_client->cl_clid;
+ __entry->xid = be32_to_cpu(task->tk_rqstp->rq_xid);
+ __entry->auth = auth;
+ __entry->rslack = auth->au_rslack;
+ __entry->ralign = auth->au_ralign;
+ __entry->verfsize = auth->au_verfsize;
+ ),
+
+ TP_printk("task:%u@%u xid=0x%08x auth=%p rslack=%u ralign=%u verfsize=%u\n",
+ __entry->task_id, __entry->client_id, __entry->xid,
+ __entry->auth, __entry->rslack, __entry->ralign,
+ __entry->verfsize)
+);
+
DECLARE_EVENT_CLASS(rpcgss_svc_seqno_class,
TP_PROTO(
__be32 xid,
@@ -371,6 +449,7 @@ TRACE_EVENT(rpcgss_upcall_result,
TRACE_EVENT(rpcgss_context,
TP_PROTO(
+ u32 window_size,
unsigned long expiry,
unsigned long now,
unsigned int timeout,
@@ -378,12 +457,13 @@ TRACE_EVENT(rpcgss_context,
const u8 *data
),
- TP_ARGS(expiry, now, timeout, len, data),
+ TP_ARGS(window_size, expiry, now, timeout, len, data),
TP_STRUCT__entry(
__field(unsigned long, expiry)
__field(unsigned long, now)
__field(unsigned int, timeout)
+ __field(u32, window_size)
__field(int, len)
__string(acceptor, data)
),
@@ -392,13 +472,14 @@ TRACE_EVENT(rpcgss_context,
__entry->expiry = expiry;
__entry->now = now;
__entry->timeout = timeout;
+ __entry->window_size = window_size;
__entry->len = len;
strncpy(__get_str(acceptor), data, len);
),
- TP_printk("gc_expiry=%lu now=%lu timeout=%u acceptor=%.*s",
- __entry->expiry, __entry->now, __entry->timeout,
- __entry->len, __get_str(acceptor))
+ TP_printk("win_size=%u expiry=%lu now=%lu timeout=%u acceptor=%.*s",
+ __entry->window_size, __entry->expiry, __entry->now,
+ __entry->timeout, __entry->len, __get_str(acceptor))
);
diff --git a/include/trace/events/rpcrdma.h b/include/trace/events/rpcrdma.h
index 132c3c778a43..0f05a6e2b9cb 100644
--- a/include/trace/events/rpcrdma.h
+++ b/include/trace/events/rpcrdma.h
@@ -380,12 +380,8 @@ TRACE_EVENT(xprtrdma_inline_thresh,
DEFINE_CONN_EVENT(connect);
DEFINE_CONN_EVENT(disconnect);
-DEFINE_CONN_EVENT(flush_dct);
-DEFINE_RXPRT_EVENT(xprtrdma_create);
-DEFINE_RXPRT_EVENT(xprtrdma_op_destroy);
DEFINE_RXPRT_EVENT(xprtrdma_op_inject_dsc);
-DEFINE_RXPRT_EVENT(xprtrdma_op_close);
DEFINE_RXPRT_EVENT(xprtrdma_op_setport);
TRACE_EVENT(xprtrdma_op_connect,
@@ -1279,38 +1275,42 @@ TRACE_EVENT(xprtrdma_leaked_rep,
** Server-side RPC/RDMA events
**/
-DECLARE_EVENT_CLASS(svcrdma_xprt_event,
+DECLARE_EVENT_CLASS(svcrdma_accept_class,
TP_PROTO(
- const struct svc_xprt *xprt
+ const struct svcxprt_rdma *rdma,
+ long status
),
- TP_ARGS(xprt),
+ TP_ARGS(rdma, status),
TP_STRUCT__entry(
- __field(const void *, xprt)
- __string(addr, xprt->xpt_remotebuf)
+ __field(long, status)
+ __string(addr, rdma->sc_xprt.xpt_remotebuf)
),
TP_fast_assign(
- __entry->xprt = xprt;
- __assign_str(addr, xprt->xpt_remotebuf);
+ __entry->status = status;
+ __assign_str(addr, rdma->sc_xprt.xpt_remotebuf);
),
- TP_printk("xprt=%p addr=%s",
- __entry->xprt, __get_str(addr)
+ TP_printk("addr=%s status=%ld",
+ __get_str(addr), __entry->status
)
);
-#define DEFINE_XPRT_EVENT(name) \
- DEFINE_EVENT(svcrdma_xprt_event, svcrdma_xprt_##name, \
- TP_PROTO( \
- const struct svc_xprt *xprt \
- ), \
- TP_ARGS(xprt))
+#define DEFINE_ACCEPT_EVENT(name) \
+ DEFINE_EVENT(svcrdma_accept_class, svcrdma_##name##_err, \
+ TP_PROTO( \
+ const struct svcxprt_rdma *rdma, \
+ long status \
+ ), \
+ TP_ARGS(rdma, status))
-DEFINE_XPRT_EVENT(accept);
-DEFINE_XPRT_EVENT(fail);
-DEFINE_XPRT_EVENT(free);
+DEFINE_ACCEPT_EVENT(pd);
+DEFINE_ACCEPT_EVENT(qp);
+DEFINE_ACCEPT_EVENT(fabric);
+DEFINE_ACCEPT_EVENT(initdepth);
+DEFINE_ACCEPT_EVENT(accept);
TRACE_DEFINE_ENUM(RDMA_MSG);
TRACE_DEFINE_ENUM(RDMA_NOMSG);
@@ -1355,7 +1355,7 @@ TRACE_EVENT(svcrdma_decode_rqst,
show_rpcrdma_proc(__entry->proc), __entry->hdrlen)
);
-TRACE_EVENT(svcrdma_decode_short,
+TRACE_EVENT(svcrdma_decode_short_err,
TP_PROTO(
unsigned int hdrlen
),
@@ -1399,7 +1399,8 @@ DECLARE_EVENT_CLASS(svcrdma_badreq_event,
);
#define DEFINE_BADREQ_EVENT(name) \
- DEFINE_EVENT(svcrdma_badreq_event, svcrdma_decode_##name,\
+ DEFINE_EVENT(svcrdma_badreq_event, \
+ svcrdma_decode_##name##_err, \
TP_PROTO( \
__be32 *p \
), \
@@ -1583,28 +1584,117 @@ DECLARE_EVENT_CLASS(svcrdma_dma_map_class,
DEFINE_SVC_DMA_EVENT(dma_map_page);
DEFINE_SVC_DMA_EVENT(dma_unmap_page);
-TRACE_EVENT(svcrdma_dma_map_rwctx,
+TRACE_EVENT(svcrdma_dma_map_rw_err,
TP_PROTO(
const struct svcxprt_rdma *rdma,
+ unsigned int nents,
int status
),
- TP_ARGS(rdma, status),
+ TP_ARGS(rdma, nents, status),
TP_STRUCT__entry(
__field(int, status)
+ __field(unsigned int, nents)
__string(device, rdma->sc_cm_id->device->name)
__string(addr, rdma->sc_xprt.xpt_remotebuf)
),
TP_fast_assign(
__entry->status = status;
+ __entry->nents = nents;
+ __assign_str(device, rdma->sc_cm_id->device->name);
+ __assign_str(addr, rdma->sc_xprt.xpt_remotebuf);
+ ),
+
+ TP_printk("addr=%s device=%s nents=%u status=%d",
+ __get_str(addr), __get_str(device), __entry->nents,
+ __entry->status
+ )
+);
+
+TRACE_EVENT(svcrdma_no_rwctx_err,
+ TP_PROTO(
+ const struct svcxprt_rdma *rdma,
+ unsigned int num_sges
+ ),
+
+ TP_ARGS(rdma, num_sges),
+
+ TP_STRUCT__entry(
+ __field(unsigned int, num_sges)
+ __string(device, rdma->sc_cm_id->device->name)
+ __string(addr, rdma->sc_xprt.xpt_remotebuf)
+ ),
+
+ TP_fast_assign(
+ __entry->num_sges = num_sges;
+ __assign_str(device, rdma->sc_cm_id->device->name);
+ __assign_str(addr, rdma->sc_xprt.xpt_remotebuf);
+ ),
+
+ TP_printk("addr=%s device=%s num_sges=%d",
+ __get_str(addr), __get_str(device), __entry->num_sges
+ )
+);
+
+TRACE_EVENT(svcrdma_page_overrun_err,
+ TP_PROTO(
+ const struct svcxprt_rdma *rdma,
+ const struct svc_rqst *rqst,
+ unsigned int pageno
+ ),
+
+ TP_ARGS(rdma, rqst, pageno),
+
+ TP_STRUCT__entry(
+ __field(unsigned int, pageno)
+ __field(u32, xid)
+ __string(device, rdma->sc_cm_id->device->name)
+ __string(addr, rdma->sc_xprt.xpt_remotebuf)
+ ),
+
+ TP_fast_assign(
+ __entry->pageno = pageno;
+ __entry->xid = __be32_to_cpu(rqst->rq_xid);
+ __assign_str(device, rdma->sc_cm_id->device->name);
+ __assign_str(addr, rdma->sc_xprt.xpt_remotebuf);
+ ),
+
+ TP_printk("addr=%s device=%s xid=0x%08x pageno=%u", __get_str(addr),
+ __get_str(device), __entry->xid, __entry->pageno
+ )
+);
+
+TRACE_EVENT(svcrdma_small_wrch_err,
+ TP_PROTO(
+ const struct svcxprt_rdma *rdma,
+ unsigned int remaining,
+ unsigned int seg_no,
+ unsigned int num_segs
+ ),
+
+ TP_ARGS(rdma, remaining, seg_no, num_segs),
+
+ TP_STRUCT__entry(
+ __field(unsigned int, remaining)
+ __field(unsigned int, seg_no)
+ __field(unsigned int, num_segs)
+ __string(device, rdma->sc_cm_id->device->name)
+ __string(addr, rdma->sc_xprt.xpt_remotebuf)
+ ),
+
+ TP_fast_assign(
+ __entry->remaining = remaining;
+ __entry->seg_no = seg_no;
+ __entry->num_segs = num_segs;
__assign_str(device, rdma->sc_cm_id->device->name);
__assign_str(addr, rdma->sc_xprt.xpt_remotebuf);
),
- TP_printk("addr=%s device=%s status=%d",
- __get_str(addr), __get_str(device), __entry->status
+ TP_printk("addr=%s device=%s remaining=%u seg_no=%u num_segs=%u",
+ __get_str(addr), __get_str(device), __entry->remaining,
+ __entry->seg_no, __entry->num_segs
)
);
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index ffd2215950dc..6a12935b8b14 100644
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -14,14 +14,50 @@
#include <linux/net.h>
#include <linux/tracepoint.h>
-DECLARE_EVENT_CLASS(xdr_buf_class,
+TRACE_DEFINE_ENUM(SOCK_STREAM);
+TRACE_DEFINE_ENUM(SOCK_DGRAM);
+TRACE_DEFINE_ENUM(SOCK_RAW);
+TRACE_DEFINE_ENUM(SOCK_RDM);
+TRACE_DEFINE_ENUM(SOCK_SEQPACKET);
+TRACE_DEFINE_ENUM(SOCK_DCCP);
+TRACE_DEFINE_ENUM(SOCK_PACKET);
+
+#define show_socket_type(type) \
+ __print_symbolic(type, \
+ { SOCK_STREAM, "STREAM" }, \
+ { SOCK_DGRAM, "DGRAM" }, \
+ { SOCK_RAW, "RAW" }, \
+ { SOCK_RDM, "RDM" }, \
+ { SOCK_SEQPACKET, "SEQPACKET" }, \
+ { SOCK_DCCP, "DCCP" }, \
+ { SOCK_PACKET, "PACKET" })
+
+/* This list is known to be incomplete, add new enums as needed. */
+TRACE_DEFINE_ENUM(AF_UNSPEC);
+TRACE_DEFINE_ENUM(AF_UNIX);
+TRACE_DEFINE_ENUM(AF_LOCAL);
+TRACE_DEFINE_ENUM(AF_INET);
+TRACE_DEFINE_ENUM(AF_INET6);
+
+#define rpc_show_address_family(family) \
+ __print_symbolic(family, \
+ { AF_UNSPEC, "AF_UNSPEC" }, \
+ { AF_UNIX, "AF_UNIX" }, \
+ { AF_LOCAL, "AF_LOCAL" }, \
+ { AF_INET, "AF_INET" }, \
+ { AF_INET6, "AF_INET6" })
+
+DECLARE_EVENT_CLASS(rpc_xdr_buf_class,
TP_PROTO(
+ const struct rpc_task *task,
const struct xdr_buf *xdr
),
- TP_ARGS(xdr),
+ TP_ARGS(task, xdr),
TP_STRUCT__entry(
+ __field(unsigned int, task_id)
+ __field(unsigned int, client_id)
__field(const void *, head_base)
__field(size_t, head_len)
__field(const void *, tail_base)
@@ -31,6 +67,8 @@ DECLARE_EVENT_CLASS(xdr_buf_class,
),
TP_fast_assign(
+ __entry->task_id = task->tk_pid;
+ __entry->client_id = task->tk_client->cl_clid;
__entry->head_base = xdr->head[0].iov_base;
__entry->head_len = xdr->head[0].iov_len;
__entry->tail_base = xdr->tail[0].iov_base;
@@ -39,23 +77,137 @@ DECLARE_EVENT_CLASS(xdr_buf_class,
__entry->msg_len = xdr->len;
),
- TP_printk("head=[%p,%zu] page=%u tail=[%p,%zu] len=%u",
+ TP_printk("task:%u@%u head=[%p,%zu] page=%u tail=[%p,%zu] len=%u",
+ __entry->task_id, __entry->client_id,
__entry->head_base, __entry->head_len, __entry->page_len,
__entry->tail_base, __entry->tail_len, __entry->msg_len
)
);
-#define DEFINE_XDRBUF_EVENT(name) \
- DEFINE_EVENT(xdr_buf_class, name, \
+#define DEFINE_RPCXDRBUF_EVENT(name) \
+ DEFINE_EVENT(rpc_xdr_buf_class, \
+ rpc_xdr_##name, \
TP_PROTO( \
+ const struct rpc_task *task, \
const struct xdr_buf *xdr \
), \
- TP_ARGS(xdr))
+ TP_ARGS(task, xdr))
+
+DEFINE_RPCXDRBUF_EVENT(sendto);
+DEFINE_RPCXDRBUF_EVENT(recvfrom);
+DEFINE_RPCXDRBUF_EVENT(reply_pages);
+
+
+DECLARE_EVENT_CLASS(rpc_clnt_class,
+ TP_PROTO(
+ const struct rpc_clnt *clnt
+ ),
+
+ TP_ARGS(clnt),
+
+ TP_STRUCT__entry(
+ __field(unsigned int, client_id)
+ ),
+
+ TP_fast_assign(
+ __entry->client_id = clnt->cl_clid;
+ ),
+
+ TP_printk("clid=%u", __entry->client_id)
+);
+
+#define DEFINE_RPC_CLNT_EVENT(name) \
+ DEFINE_EVENT(rpc_clnt_class, \
+ rpc_clnt_##name, \
+ TP_PROTO( \
+ const struct rpc_clnt *clnt \
+ ), \
+ TP_ARGS(clnt))
+
+DEFINE_RPC_CLNT_EVENT(free);
+DEFINE_RPC_CLNT_EVENT(killall);
+DEFINE_RPC_CLNT_EVENT(shutdown);
+DEFINE_RPC_CLNT_EVENT(release);
+DEFINE_RPC_CLNT_EVENT(replace_xprt);
+DEFINE_RPC_CLNT_EVENT(replace_xprt_err);
+
+TRACE_EVENT(rpc_clnt_new,
+ TP_PROTO(
+ const struct rpc_clnt *clnt,
+ const struct rpc_xprt *xprt,
+ const char *program,
+ const char *server
+ ),
+
+ TP_ARGS(clnt, xprt, program, server),
+
+ TP_STRUCT__entry(
+ __field(unsigned int, client_id)
+ __string(addr, xprt->address_strings[RPC_DISPLAY_ADDR])
+ __string(port, xprt->address_strings[RPC_DISPLAY_PORT])
+ __string(program, program)
+ __string(server, server)
+ ),
+
+ TP_fast_assign(
+ __entry->client_id = clnt->cl_clid;
+ __assign_str(addr, xprt->address_strings[RPC_DISPLAY_ADDR]);
+ __assign_str(port, xprt->address_strings[RPC_DISPLAY_PORT]);
+ __assign_str(program, program)
+ __assign_str(server, server)
+ ),
+
+ TP_printk("client=%u peer=[%s]:%s program=%s server=%s",
+ __entry->client_id, __get_str(addr), __get_str(port),
+ __get_str(program), __get_str(server))
+);
+
+TRACE_EVENT(rpc_clnt_new_err,
+ TP_PROTO(
+ const char *program,
+ const char *server,
+ int error
+ ),
+
+ TP_ARGS(program, server, error),
+
+ TP_STRUCT__entry(
+ __field(int, error)
+ __string(program, program)
+ __string(server, server)
+ ),
+
+ TP_fast_assign(
+ __entry->error = error;
+ __assign_str(program, program)
+ __assign_str(server, server)
+ ),
+
+ TP_printk("program=%s server=%s error=%d",
+ __get_str(program), __get_str(server), __entry->error)
+);
+
+TRACE_EVENT(rpc_clnt_clone_err,
+ TP_PROTO(
+ const struct rpc_clnt *clnt,
+ int error
+ ),
+
+ TP_ARGS(clnt, error),
+
+ TP_STRUCT__entry(
+ __field(unsigned int, client_id)
+ __field(int, error)
+ ),
+
+ TP_fast_assign(
+ __entry->client_id = clnt->cl_clid;
+ __entry->error = error;
+ ),
+
+ TP_printk("client=%u error=%d", __entry->client_id, __entry->error)
+);
-DEFINE_XDRBUF_EVENT(xprt_sendto);
-DEFINE_XDRBUF_EVENT(xprt_recvfrom);
-DEFINE_XDRBUF_EVENT(svc_recvfrom);
-DEFINE_XDRBUF_EVENT(svc_sendto);
TRACE_DEFINE_ENUM(RPC_AUTH_OK);
TRACE_DEFINE_ENUM(RPC_AUTH_BADCRED);
@@ -142,29 +294,35 @@ TRACE_EVENT(rpc_request,
TRACE_DEFINE_ENUM(RPC_TASK_ASYNC);
TRACE_DEFINE_ENUM(RPC_TASK_SWAPPER);
+TRACE_DEFINE_ENUM(RPC_TASK_NULLCREDS);
TRACE_DEFINE_ENUM(RPC_CALL_MAJORSEEN);
TRACE_DEFINE_ENUM(RPC_TASK_ROOTCREDS);
TRACE_DEFINE_ENUM(RPC_TASK_DYNAMIC);
+TRACE_DEFINE_ENUM(RPC_TASK_NO_ROUND_ROBIN);
TRACE_DEFINE_ENUM(RPC_TASK_SOFT);
TRACE_DEFINE_ENUM(RPC_TASK_SOFTCONN);
TRACE_DEFINE_ENUM(RPC_TASK_SENT);
TRACE_DEFINE_ENUM(RPC_TASK_TIMEOUT);
TRACE_DEFINE_ENUM(RPC_TASK_NOCONNECT);
TRACE_DEFINE_ENUM(RPC_TASK_NO_RETRANS_TIMEOUT);
+TRACE_DEFINE_ENUM(RPC_TASK_CRED_NOREF);
#define rpc_show_task_flags(flags) \
__print_flags(flags, "|", \
{ RPC_TASK_ASYNC, "ASYNC" }, \
{ RPC_TASK_SWAPPER, "SWAPPER" }, \
+ { RPC_TASK_NULLCREDS, "NULLCREDS" }, \
{ RPC_CALL_MAJORSEEN, "MAJORSEEN" }, \
{ RPC_TASK_ROOTCREDS, "ROOTCREDS" }, \
{ RPC_TASK_DYNAMIC, "DYNAMIC" }, \
+ { RPC_TASK_NO_ROUND_ROBIN, "NO_ROUND_ROBIN" }, \
{ RPC_TASK_SOFT, "SOFT" }, \
{ RPC_TASK_SOFTCONN, "SOFTCONN" }, \
{ RPC_TASK_SENT, "SENT" }, \
{ RPC_TASK_TIMEOUT, "TIMEOUT" }, \
{ RPC_TASK_NOCONNECT, "NOCONNECT" }, \
- { RPC_TASK_NO_RETRANS_TIMEOUT, "NORTO" })
+ { RPC_TASK_NO_RETRANS_TIMEOUT, "NORTO" }, \
+ { RPC_TASK_CRED_NOREF, "CRED_NOREF" })
TRACE_DEFINE_ENUM(RPC_TASK_RUNNING);
TRACE_DEFINE_ENUM(RPC_TASK_QUEUED);
@@ -359,6 +517,34 @@ DEFINE_RPC_REPLY_EVENT(stale_creds);
DEFINE_RPC_REPLY_EVENT(bad_creds);
DEFINE_RPC_REPLY_EVENT(auth_tooweak);
+TRACE_EVENT(rpc_call_rpcerror,
+ TP_PROTO(
+ const struct rpc_task *task,
+ int tk_status,
+ int rpc_status
+ ),
+
+ TP_ARGS(task, tk_status, rpc_status),
+
+ TP_STRUCT__entry(
+ __field(unsigned int, task_id)
+ __field(unsigned int, client_id)
+ __field(int, tk_status)
+ __field(int, rpc_status)
+ ),
+
+ TP_fast_assign(
+ __entry->client_id = task->tk_client->cl_clid;
+ __entry->task_id = task->tk_pid;
+ __entry->tk_status = tk_status;
+ __entry->rpc_status = rpc_status;
+ ),
+
+ TP_printk("task:%u@%u tk_status=%d rpc_status=%d",
+ __entry->task_id, __entry->client_id,
+ __entry->tk_status, __entry->rpc_status)
+);
+
TRACE_EVENT(rpc_stats_latency,
TP_PROTO(
@@ -526,43 +712,6 @@ TRACE_EVENT(rpc_xdr_alignment,
)
);
-TRACE_EVENT(rpc_reply_pages,
- TP_PROTO(
- const struct rpc_rqst *req
- ),
-
- TP_ARGS(req),
-
- TP_STRUCT__entry(
- __field(unsigned int, task_id)
- __field(unsigned int, client_id)
- __field(const void *, head_base)
- __field(size_t, head_len)
- __field(const void *, tail_base)
- __field(size_t, tail_len)
- __field(unsigned int, page_len)
- ),
-
- TP_fast_assign(
- __entry->task_id = req->rq_task->tk_pid;
- __entry->client_id = req->rq_task->tk_client->cl_clid;
-
- __entry->head_base = req->rq_rcv_buf.head[0].iov_base;
- __entry->head_len = req->rq_rcv_buf.head[0].iov_len;
- __entry->page_len = req->rq_rcv_buf.page_len;
- __entry->tail_base = req->rq_rcv_buf.tail[0].iov_base;
- __entry->tail_len = req->rq_rcv_buf.tail[0].iov_len;
- ),
-
- TP_printk(
- "task:%u@%u xdr=[%p,%zu]/%u/[%p,%zu]\n",
- __entry->task_id, __entry->client_id,
- __entry->head_base, __entry->head_len,
- __entry->page_len,
- __entry->tail_base, __entry->tail_len
- )
-);
-
/*
* First define the enums in the below macros to be exported to userspace
* via TRACE_DEFINE_ENUM().
@@ -575,9 +724,9 @@ TRACE_EVENT(rpc_reply_pages,
#define RPC_SHOW_SOCKET \
EM( SS_FREE, "FREE" ) \
EM( SS_UNCONNECTED, "UNCONNECTED" ) \
- EM( SS_CONNECTING, "CONNECTING," ) \
- EM( SS_CONNECTED, "CONNECTED," ) \
- EMe(SS_DISCONNECTING, "DISCONNECTING" )
+ EM( SS_CONNECTING, "CONNECTING" ) \
+ EM( SS_CONNECTED, "CONNECTED" ) \
+ EMe( SS_DISCONNECTING, "DISCONNECTING" )
#define rpc_show_socket_state(state) \
__print_symbolic(state, RPC_SHOW_SOCKET)
@@ -719,6 +868,69 @@ DEFINE_RPC_SOCKET_EVENT_DONE(rpc_socket_reset_connection);
DEFINE_RPC_SOCKET_EVENT(rpc_socket_close);
DEFINE_RPC_SOCKET_EVENT(rpc_socket_shutdown);
+TRACE_DEFINE_ENUM(XPRT_LOCKED);
+TRACE_DEFINE_ENUM(XPRT_CONNECTED);
+TRACE_DEFINE_ENUM(XPRT_CONNECTING);
+TRACE_DEFINE_ENUM(XPRT_CLOSE_WAIT);
+TRACE_DEFINE_ENUM(XPRT_BOUND);
+TRACE_DEFINE_ENUM(XPRT_BINDING);
+TRACE_DEFINE_ENUM(XPRT_CLOSING);
+TRACE_DEFINE_ENUM(XPRT_CONGESTED);
+TRACE_DEFINE_ENUM(XPRT_CWND_WAIT);
+TRACE_DEFINE_ENUM(XPRT_WRITE_SPACE);
+
+#define rpc_show_xprt_state(x) \
+ __print_flags(x, "|", \
+ { (1UL << XPRT_LOCKED), "LOCKED"}, \
+ { (1UL << XPRT_CONNECTED), "CONNECTED"}, \
+ { (1UL << XPRT_CONNECTING), "CONNECTING"}, \
+ { (1UL << XPRT_CLOSE_WAIT), "CLOSE_WAIT"}, \
+ { (1UL << XPRT_BOUND), "BOUND"}, \
+ { (1UL << XPRT_BINDING), "BINDING"}, \
+ { (1UL << XPRT_CLOSING), "CLOSING"}, \
+ { (1UL << XPRT_CONGESTED), "CONGESTED"}, \
+ { (1UL << XPRT_CWND_WAIT), "CWND_WAIT"}, \
+ { (1UL << XPRT_WRITE_SPACE), "WRITE_SPACE"})
+
+DECLARE_EVENT_CLASS(rpc_xprt_lifetime_class,
+ TP_PROTO(
+ const struct rpc_xprt *xprt
+ ),
+
+ TP_ARGS(xprt),
+
+ TP_STRUCT__entry(
+ __field(unsigned long, state)
+ __string(addr, xprt->address_strings[RPC_DISPLAY_ADDR])
+ __string(port, xprt->address_strings[RPC_DISPLAY_PORT])
+ ),
+
+ TP_fast_assign(
+ __entry->state = xprt->state;
+ __assign_str(addr, xprt->address_strings[RPC_DISPLAY_ADDR]);
+ __assign_str(port, xprt->address_strings[RPC_DISPLAY_PORT]);
+ ),
+
+ TP_printk("peer=[%s]:%s state=%s",
+ __get_str(addr), __get_str(port),
+ rpc_show_xprt_state(__entry->state))
+);
+
+#define DEFINE_RPC_XPRT_LIFETIME_EVENT(name) \
+ DEFINE_EVENT(rpc_xprt_lifetime_class, \
+ xprt_##name, \
+ TP_PROTO( \
+ const struct rpc_xprt *xprt \
+ ), \
+ TP_ARGS(xprt))
+
+DEFINE_RPC_XPRT_LIFETIME_EVENT(create);
+DEFINE_RPC_XPRT_LIFETIME_EVENT(disconnect_auto);
+DEFINE_RPC_XPRT_LIFETIME_EVENT(disconnect_done);
+DEFINE_RPC_XPRT_LIFETIME_EVENT(disconnect_force);
+DEFINE_RPC_XPRT_LIFETIME_EVENT(disconnect_cleanup);
+DEFINE_RPC_XPRT_LIFETIME_EVENT(destroy);
+
DECLARE_EVENT_CLASS(rpc_xprt_event,
TP_PROTO(
const struct rpc_xprt *xprt,
@@ -990,6 +1202,54 @@ TRACE_EVENT(xs_stream_read_request,
__entry->copied, __entry->reclen, __entry->offset)
);
+
+DECLARE_EVENT_CLASS(svc_xdr_buf_class,
+ TP_PROTO(
+ const struct svc_rqst *rqst,
+ const struct xdr_buf *xdr
+ ),
+
+ TP_ARGS(rqst, xdr),
+
+ TP_STRUCT__entry(
+ __field(u32, xid)
+ __field(const void *, head_base)
+ __field(size_t, head_len)
+ __field(const void *, tail_base)
+ __field(size_t, tail_len)
+ __field(unsigned int, page_len)
+ __field(unsigned int, msg_len)
+ ),
+
+ TP_fast_assign(
+ __entry->xid = be32_to_cpu(rqst->rq_xid);
+ __entry->head_base = xdr->head[0].iov_base;
+ __entry->head_len = xdr->head[0].iov_len;
+ __entry->tail_base = xdr->tail[0].iov_base;
+ __entry->tail_len = xdr->tail[0].iov_len;
+ __entry->page_len = xdr->page_len;
+ __entry->msg_len = xdr->len;
+ ),
+
+ TP_printk("xid=0x%08x head=[%p,%zu] page=%u tail=[%p,%zu] len=%u",
+ __entry->xid,
+ __entry->head_base, __entry->head_len, __entry->page_len,
+ __entry->tail_base, __entry->tail_len, __entry->msg_len
+ )
+);
+
+#define DEFINE_SVCXDRBUF_EVENT(name) \
+ DEFINE_EVENT(svc_xdr_buf_class, \
+ svc_xdr_##name, \
+ TP_PROTO( \
+ const struct svc_rqst *rqst, \
+ const struct xdr_buf *xdr \
+ ), \
+ TP_ARGS(rqst, xdr))
+
+DEFINE_SVCXDRBUF_EVENT(recvfrom);
+DEFINE_SVCXDRBUF_EVENT(sendto);
+
#define show_rqstp_flags(flags) \
__print_flags(flags, "|", \
{ (1UL << RQ_SECURE), "RQ_SECURE"}, \
@@ -1024,6 +1284,17 @@ TRACE_EVENT(svc_recv,
show_rqstp_flags(__entry->flags))
);
+TRACE_DEFINE_ENUM(SVC_GARBAGE);
+TRACE_DEFINE_ENUM(SVC_SYSERR);
+TRACE_DEFINE_ENUM(SVC_VALID);
+TRACE_DEFINE_ENUM(SVC_NEGATIVE);
+TRACE_DEFINE_ENUM(SVC_OK);
+TRACE_DEFINE_ENUM(SVC_DROP);
+TRACE_DEFINE_ENUM(SVC_CLOSE);
+TRACE_DEFINE_ENUM(SVC_DENIED);
+TRACE_DEFINE_ENUM(SVC_PENDING);
+TRACE_DEFINE_ENUM(SVC_COMPLETE);
+
#define svc_show_status(status) \
__print_symbolic(status, \
{ SVC_GARBAGE, "SVC_GARBAGE" }, \
@@ -1167,28 +1438,54 @@ DEFINE_EVENT(svc_rqst_status, svc_send,
{ (1UL << XPT_KILL_TEMP), "XPT_KILL_TEMP"}, \
{ (1UL << XPT_CONG_CTRL), "XPT_CONG_CTRL"})
+TRACE_EVENT(svc_xprt_create_err,
+ TP_PROTO(
+ const char *program,
+ const char *protocol,
+ struct sockaddr *sap,
+ const struct svc_xprt *xprt
+ ),
+
+ TP_ARGS(program, protocol, sap, xprt),
+
+ TP_STRUCT__entry(
+ __field(long, error)
+ __string(program, program)
+ __string(protocol, protocol)
+ __array(unsigned char, addr, sizeof(struct sockaddr_in6))
+ ),
+
+ TP_fast_assign(
+ __entry->error = PTR_ERR(xprt);
+ __assign_str(program, program);
+ __assign_str(protocol, protocol);
+ memcpy(__entry->addr, sap, sizeof(__entry->addr));
+ ),
+
+ TP_printk("addr=%pISpc program=%s protocol=%s error=%ld",
+ __entry->addr, __get_str(program), __get_str(protocol),
+ __entry->error)
+);
+
TRACE_EVENT(svc_xprt_do_enqueue,
TP_PROTO(struct svc_xprt *xprt, struct svc_rqst *rqst),
TP_ARGS(xprt, rqst),
TP_STRUCT__entry(
- __field(struct svc_xprt *, xprt)
__field(int, pid)
__field(unsigned long, flags)
__string(addr, xprt->xpt_remotebuf)
),
TP_fast_assign(
- __entry->xprt = xprt;
__entry->pid = rqst? rqst->rq_task->pid : 0;
__entry->flags = xprt->xpt_flags;
__assign_str(addr, xprt->xpt_remotebuf);
),
- TP_printk("xprt=%p addr=%s pid=%d flags=%s",
- __entry->xprt, __get_str(addr),
- __entry->pid, show_svc_xprt_flags(__entry->flags))
+ TP_printk("addr=%s pid=%d flags=%s", __get_str(addr),
+ __entry->pid, show_svc_xprt_flags(__entry->flags))
);
DECLARE_EVENT_CLASS(svc_xprt_event,
@@ -1197,25 +1494,55 @@ DECLARE_EVENT_CLASS(svc_xprt_event,
TP_ARGS(xprt),
TP_STRUCT__entry(
- __field(struct svc_xprt *, xprt)
__field(unsigned long, flags)
__string(addr, xprt->xpt_remotebuf)
),
TP_fast_assign(
- __entry->xprt = xprt;
__entry->flags = xprt->xpt_flags;
__assign_str(addr, xprt->xpt_remotebuf);
),
- TP_printk("xprt=%p addr=%s flags=%s",
- __entry->xprt, __get_str(addr),
- show_svc_xprt_flags(__entry->flags))
+ TP_printk("addr=%s flags=%s", __get_str(addr),
+ show_svc_xprt_flags(__entry->flags))
);
-DEFINE_EVENT(svc_xprt_event, svc_xprt_no_write_space,
- TP_PROTO(struct svc_xprt *xprt),
- TP_ARGS(xprt));
+#define DEFINE_SVC_XPRT_EVENT(name) \
+ DEFINE_EVENT(svc_xprt_event, svc_xprt_##name, \
+ TP_PROTO( \
+ struct svc_xprt *xprt \
+ ), \
+ TP_ARGS(xprt))
+
+DEFINE_SVC_XPRT_EVENT(no_write_space);
+DEFINE_SVC_XPRT_EVENT(close);
+DEFINE_SVC_XPRT_EVENT(detach);
+DEFINE_SVC_XPRT_EVENT(free);
+
+TRACE_EVENT(svc_xprt_accept,
+ TP_PROTO(
+ const struct svc_xprt *xprt,
+ const char *service
+ ),
+
+ TP_ARGS(xprt, service),
+
+ TP_STRUCT__entry(
+ __string(addr, xprt->xpt_remotebuf)
+ __string(protocol, xprt->xpt_class->xcl_name)
+ __string(service, service)
+ ),
+
+ TP_fast_assign(
+ __assign_str(addr, xprt->xpt_remotebuf);
+ __assign_str(protocol, xprt->xpt_class->xcl_name)
+ __assign_str(service, service);
+ ),
+
+ TP_printk("addr=%s protocol=%s service=%s",
+ __get_str(addr), __get_str(protocol), __get_str(service)
+ )
+);
TRACE_EVENT(svc_xprt_dequeue,
TP_PROTO(struct svc_rqst *rqst),
@@ -1223,24 +1550,20 @@ TRACE_EVENT(svc_xprt_dequeue,
TP_ARGS(rqst),
TP_STRUCT__entry(
- __field(struct svc_xprt *, xprt)
__field(unsigned long, flags)
__field(unsigned long, wakeup)
__string(addr, rqst->rq_xprt->xpt_remotebuf)
),
TP_fast_assign(
- __entry->xprt = rqst->rq_xprt;
__entry->flags = rqst->rq_xprt->xpt_flags;
__entry->wakeup = ktime_to_us(ktime_sub(ktime_get(),
rqst->rq_qtime));
__assign_str(addr, rqst->rq_xprt->xpt_remotebuf);
),
- TP_printk("xprt=%p addr=%s flags=%s wakeup-us=%lu",
- __entry->xprt, __get_str(addr),
- show_svc_xprt_flags(__entry->flags),
- __entry->wakeup)
+ TP_printk("addr=%s flags=%s wakeup-us=%lu", __get_str(addr),
+ show_svc_xprt_flags(__entry->flags), __entry->wakeup)
);
TRACE_EVENT(svc_wake_up,
@@ -1265,21 +1588,18 @@ TRACE_EVENT(svc_handle_xprt,
TP_ARGS(xprt, len),
TP_STRUCT__entry(
- __field(struct svc_xprt *, xprt)
__field(int, len)
__field(unsigned long, flags)
__string(addr, xprt->xpt_remotebuf)
),
TP_fast_assign(
- __entry->xprt = xprt;
__entry->len = len;
__entry->flags = xprt->xpt_flags;
__assign_str(addr, xprt->xpt_remotebuf);
),
- TP_printk("xprt=%p addr=%s len=%d flags=%s",
- __entry->xprt, __get_str(addr),
+ TP_printk("addr=%s len=%d flags=%s", __get_str(addr),
__entry->len, show_svc_xprt_flags(__entry->flags))
);
@@ -1313,27 +1633,221 @@ DECLARE_EVENT_CLASS(svc_deferred_event,
TP_ARGS(dr),
TP_STRUCT__entry(
+ __field(const void *, dr)
__field(u32, xid)
__string(addr, dr->xprt->xpt_remotebuf)
),
TP_fast_assign(
+ __entry->dr = dr;
__entry->xid = be32_to_cpu(*(__be32 *)(dr->args +
(dr->xprt_hlen>>2)));
__assign_str(addr, dr->xprt->xpt_remotebuf);
),
- TP_printk("addr=%s xid=0x%08x", __get_str(addr), __entry->xid)
+ TP_printk("addr=%s dr=%p xid=0x%08x", __get_str(addr), __entry->dr,
+ __entry->xid)
);
+
#define DEFINE_SVC_DEFERRED_EVENT(name) \
- DEFINE_EVENT(svc_deferred_event, svc_##name##_deferred, \
+ DEFINE_EVENT(svc_deferred_event, svc_defer_##name, \
TP_PROTO( \
const struct svc_deferred_req *dr \
), \
TP_ARGS(dr))
DEFINE_SVC_DEFERRED_EVENT(drop);
-DEFINE_SVC_DEFERRED_EVENT(revisit);
+DEFINE_SVC_DEFERRED_EVENT(queue);
+DEFINE_SVC_DEFERRED_EVENT(recv);
+
+TRACE_EVENT(svcsock_new_socket,
+ TP_PROTO(
+ const struct socket *socket
+ ),
+
+ TP_ARGS(socket),
+
+ TP_STRUCT__entry(
+ __field(unsigned long, type)
+ __field(unsigned long, family)
+ __field(bool, listener)
+ ),
+
+ TP_fast_assign(
+ __entry->type = socket->type;
+ __entry->family = socket->sk->sk_family;
+ __entry->listener = (socket->sk->sk_state == TCP_LISTEN);
+ ),
+
+ TP_printk("type=%s family=%s%s",
+ show_socket_type(__entry->type),
+ rpc_show_address_family(__entry->family),
+ __entry->listener ? " (listener)" : ""
+ )
+);
+
+TRACE_EVENT(svcsock_marker,
+ TP_PROTO(
+ const struct svc_xprt *xprt,
+ __be32 marker
+ ),
+
+ TP_ARGS(xprt, marker),
+
+ TP_STRUCT__entry(
+ __field(unsigned int, length)
+ __field(bool, last)
+ __string(addr, xprt->xpt_remotebuf)
+ ),
+
+ TP_fast_assign(
+ __entry->length = be32_to_cpu(marker) & RPC_FRAGMENT_SIZE_MASK;
+ __entry->last = be32_to_cpu(marker) & RPC_LAST_STREAM_FRAGMENT;
+ __assign_str(addr, xprt->xpt_remotebuf);
+ ),
+
+ TP_printk("addr=%s length=%u%s", __get_str(addr),
+ __entry->length, __entry->last ? " (last)" : "")
+);
+
+DECLARE_EVENT_CLASS(svcsock_class,
+ TP_PROTO(
+ const struct svc_xprt *xprt,
+ ssize_t result
+ ),
+
+ TP_ARGS(xprt, result),
+
+ TP_STRUCT__entry(
+ __field(ssize_t, result)
+ __field(unsigned long, flags)
+ __string(addr, xprt->xpt_remotebuf)
+ ),
+
+ TP_fast_assign(
+ __entry->result = result;
+ __entry->flags = xprt->xpt_flags;
+ __assign_str(addr, xprt->xpt_remotebuf);
+ ),
+
+ TP_printk("addr=%s result=%zd flags=%s", __get_str(addr),
+ __entry->result, show_svc_xprt_flags(__entry->flags)
+ )
+);
+
+#define DEFINE_SVCSOCK_EVENT(name) \
+ DEFINE_EVENT(svcsock_class, svcsock_##name, \
+ TP_PROTO( \
+ const struct svc_xprt *xprt, \
+ ssize_t result \
+ ), \
+ TP_ARGS(xprt, result))
+
+DEFINE_SVCSOCK_EVENT(udp_send);
+DEFINE_SVCSOCK_EVENT(udp_recv);
+DEFINE_SVCSOCK_EVENT(udp_recv_err);
+DEFINE_SVCSOCK_EVENT(tcp_send);
+DEFINE_SVCSOCK_EVENT(tcp_recv);
+DEFINE_SVCSOCK_EVENT(tcp_recv_eagain);
+DEFINE_SVCSOCK_EVENT(tcp_recv_err);
+DEFINE_SVCSOCK_EVENT(data_ready);
+DEFINE_SVCSOCK_EVENT(write_space);
+
+TRACE_EVENT(svcsock_tcp_recv_short,
+ TP_PROTO(
+ const struct svc_xprt *xprt,
+ u32 expected,
+ u32 received
+ ),
+
+ TP_ARGS(xprt, expected, received),
+
+ TP_STRUCT__entry(
+ __field(u32, expected)
+ __field(u32, received)
+ __field(unsigned long, flags)
+ __string(addr, xprt->xpt_remotebuf)
+ ),
+
+ TP_fast_assign(
+ __entry->expected = expected;
+ __entry->received = received;
+ __entry->flags = xprt->xpt_flags;
+ __assign_str(addr, xprt->xpt_remotebuf);
+ ),
+
+ TP_printk("addr=%s flags=%s expected=%u received=%u",
+ __get_str(addr), show_svc_xprt_flags(__entry->flags),
+ __entry->expected, __entry->received
+ )
+);
+
+TRACE_EVENT(svcsock_tcp_state,
+ TP_PROTO(
+ const struct svc_xprt *xprt,
+ const struct socket *socket
+ ),
+
+ TP_ARGS(xprt, socket),
+
+ TP_STRUCT__entry(
+ __field(unsigned long, socket_state)
+ __field(unsigned long, sock_state)
+ __field(unsigned long, flags)
+ __string(addr, xprt->xpt_remotebuf)
+ ),
+
+ TP_fast_assign(
+ __entry->socket_state = socket->state;
+ __entry->sock_state = socket->sk->sk_state;
+ __entry->flags = xprt->xpt_flags;
+ __assign_str(addr, xprt->xpt_remotebuf);
+ ),
+
+ TP_printk("addr=%s state=%s sk_state=%s flags=%s", __get_str(addr),
+ rpc_show_socket_state(__entry->socket_state),
+ rpc_show_sock_state(__entry->sock_state),
+ show_svc_xprt_flags(__entry->flags)
+ )
+);
+
+DECLARE_EVENT_CLASS(svcsock_accept_class,
+ TP_PROTO(
+ const struct svc_xprt *xprt,
+ const char *service,
+ long status
+ ),
+
+ TP_ARGS(xprt, service, status),
+
+ TP_STRUCT__entry(
+ __field(long, status)
+ __string(service, service)
+ __array(unsigned char, addr, sizeof(struct sockaddr_in6))
+ ),
+
+ TP_fast_assign(
+ __entry->status = status;
+ __assign_str(service, service);
+ memcpy(__entry->addr, &xprt->xpt_local, sizeof(__entry->addr));
+ ),
+
+ TP_printk("listener=%pISpc service=%s status=%ld",
+ __entry->addr, __get_str(service), __entry->status
+ )
+);
+
+#define DEFINE_ACCEPT_EVENT(name) \
+ DEFINE_EVENT(svcsock_accept_class, svcsock_##name##_err, \
+ TP_PROTO( \
+ const struct svc_xprt *xprt, \
+ const char *service, \
+ long status \
+ ), \
+ TP_ARGS(xprt, service, status))
+
+DEFINE_ACCEPT_EVENT(accept);
+DEFINE_ACCEPT_EVENT(getpeername);
DECLARE_EVENT_CLASS(cache_event,
TP_PROTO(
@@ -1368,6 +1882,86 @@ DEFINE_CACHE_EVENT(cache_entry_update);
DEFINE_CACHE_EVENT(cache_entry_make_negative);
DEFINE_CACHE_EVENT(cache_entry_no_listener);
+DECLARE_EVENT_CLASS(register_class,
+ TP_PROTO(
+ const char *program,
+ const u32 version,
+ const int family,
+ const unsigned short protocol,
+ const unsigned short port,
+ int error
+ ),
+
+ TP_ARGS(program, version, family, protocol, port, error),
+
+ TP_STRUCT__entry(
+ __field(u32, version)
+ __field(unsigned long, family)
+ __field(unsigned short, protocol)
+ __field(unsigned short, port)
+ __field(int, error)
+ __string(program, program)
+ ),
+
+ TP_fast_assign(
+ __entry->version = version;
+ __entry->family = family;
+ __entry->protocol = protocol;
+ __entry->port = port;
+ __entry->error = error;
+ __assign_str(program, program);
+ ),
+
+ TP_printk("program=%sv%u proto=%s port=%u family=%s error=%d",
+ __get_str(program), __entry->version,
+ __entry->protocol == IPPROTO_UDP ? "udp" : "tcp",
+ __entry->port, rpc_show_address_family(__entry->family),
+ __entry->error
+ )
+);
+
+#define DEFINE_REGISTER_EVENT(name) \
+ DEFINE_EVENT(register_class, svc_##name, \
+ TP_PROTO( \
+ const char *program, \
+ const u32 version, \
+ const int family, \
+ const unsigned short protocol, \
+ const unsigned short port, \
+ int error \
+ ), \
+ TP_ARGS(program, version, family, protocol, \
+ port, error))
+
+DEFINE_REGISTER_EVENT(register);
+DEFINE_REGISTER_EVENT(noregister);
+
+TRACE_EVENT(svc_unregister,
+ TP_PROTO(
+ const char *program,
+ const u32 version,
+ int error
+ ),
+
+ TP_ARGS(program, version, error),
+
+ TP_STRUCT__entry(
+ __field(u32, version)
+ __field(int, error)
+ __string(program, program)
+ ),
+
+ TP_fast_assign(
+ __entry->version = version;
+ __entry->error = error;
+ __assign_str(program, program);
+ ),
+
+ TP_printk("program=%sv%u error=%d",
+ __get_str(program), __entry->version, __entry->error
+ )
+);
+
#endif /* _TRACE_SUNRPC_H */
#include <trace/define_trace.h>
diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h
index 9fe72e4b1373..0c2349612e77 100644
--- a/include/uapi/linux/vhost.h
+++ b/include/uapi/linux/vhost.h
@@ -15,6 +15,8 @@
#include <linux/types.h>
#include <linux/ioctl.h>
+#define VHOST_FILE_UNBIND -1
+
/* ioctls */
#define VHOST_VIRTIO 0xAF
@@ -140,4 +142,6 @@
/* Get the max ring size. */
#define VHOST_VDPA_GET_VRING_NUM _IOR(VHOST_VIRTIO, 0x76, __u16)
+/* Set event fd for config interrupt*/
+#define VHOST_VDPA_SET_CONFIG_CALL _IOW(VHOST_VIRTIO, 0x77, int)
#endif
diff --git a/include/uapi/linux/virtio_ids.h b/include/uapi/linux/virtio_ids.h
index ecc27a17401a..b052355ac7a3 100644
--- a/include/uapi/linux/virtio_ids.h
+++ b/include/uapi/linux/virtio_ids.h
@@ -44,6 +44,7 @@
#define VIRTIO_ID_VSOCK 19 /* virtio vsock transport */
#define VIRTIO_ID_CRYPTO 20 /* virtio crypto */
#define VIRTIO_ID_IOMMU 23 /* virtio IOMMU */
+#define VIRTIO_ID_MEM 24 /* virtio mem */
#define VIRTIO_ID_FS 26 /* virtio filesystem */
#define VIRTIO_ID_PMEM 27 /* virtio pmem */
#define VIRTIO_ID_MAC80211_HWSIM 29 /* virtio mac80211-hwsim */
diff --git a/include/uapi/linux/virtio_mem.h b/include/uapi/linux/virtio_mem.h
new file mode 100644
index 000000000000..a9ffe041843c
--- /dev/null
+++ b/include/uapi/linux/virtio_mem.h
@@ -0,0 +1,211 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+/*
+ * Virtio Mem Device
+ *
+ * Copyright Red Hat, Inc. 2020
+ *
+ * Authors:
+ * David Hildenbrand <david@redhat.com>
+ *
+ * This header is BSD licensed so anyone can use the definitions
+ * to implement compatible drivers/servers:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of IBM nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL IBM OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _LINUX_VIRTIO_MEM_H
+#define _LINUX_VIRTIO_MEM_H
+
+#include <linux/types.h>
+#include <linux/virtio_types.h>
+#include <linux/virtio_ids.h>
+#include <linux/virtio_config.h>
+
+/*
+ * Each virtio-mem device manages a dedicated region in physical address
+ * space. Each device can belong to a single NUMA node, multiple devices
+ * for a single NUMA node are possible. A virtio-mem device is like a
+ * "resizable DIMM" consisting of small memory blocks that can be plugged
+ * or unplugged. The device driver is responsible for (un)plugging memory
+ * blocks on demand.
+ *
+ * Virtio-mem devices can only operate on their assigned memory region in
+ * order to (un)plug memory. A device cannot (un)plug memory belonging to
+ * other devices.
+ *
+ * The "region_size" corresponds to the maximum amount of memory that can
+ * be provided by a device. The "size" corresponds to the amount of memory
+ * that is currently plugged. "requested_size" corresponds to a request
+ * from the device to the device driver to (un)plug blocks. The
+ * device driver should try to (un)plug blocks in order to reach the
+ * "requested_size". It is impossible to plug more memory than requested.
+ *
+ * The "usable_region_size" represents the memory region that can actually
+ * be used to (un)plug memory. It is always at least as big as the
+ * "requested_size" and will grow dynamically. It will only shrink when
+ * explicitly triggered (VIRTIO_MEM_REQ_UNPLUG).
+ *
+ * There are no guarantees what will happen if unplugged memory is
+ * read/written. Such memory should, in general, not be touched. E.g.,
+ * even writing might succeed, but the values will simply be discarded at
+ * random points in time.
+ *
+ * It can happen that the device cannot process a request, because it is
+ * busy. The device driver has to retry later.
+ *
+ * Usually, during system resets all memory will get unplugged, so the
+ * device driver can start with a clean state. However, in specific
+ * scenarios (if the device is busy) it can happen that the device still
+ * has memory plugged. The device driver can request to unplug all memory
+ * (VIRTIO_MEM_REQ_UNPLUG) - which might take a while to succeed if the
+ * device is busy.
+ */
+
+/* --- virtio-mem: feature bits --- */
+
+/* node_id is an ACPI PXM and is valid */
+#define VIRTIO_MEM_F_ACPI_PXM 0
+
+
+/* --- virtio-mem: guest -> host requests --- */
+
+/* request to plug memory blocks */
+#define VIRTIO_MEM_REQ_PLUG 0
+/* request to unplug memory blocks */
+#define VIRTIO_MEM_REQ_UNPLUG 1
+/* request to unplug all blocks and shrink the usable size */
+#define VIRTIO_MEM_REQ_UNPLUG_ALL 2
+/* request information about the plugged state of memory blocks */
+#define VIRTIO_MEM_REQ_STATE 3
+
+struct virtio_mem_req_plug {
+ __virtio64 addr;
+ __virtio16 nb_blocks;
+ __virtio16 padding[3];
+};
+
+struct virtio_mem_req_unplug {
+ __virtio64 addr;
+ __virtio16 nb_blocks;
+ __virtio16 padding[3];
+};
+
+struct virtio_mem_req_state {
+ __virtio64 addr;
+ __virtio16 nb_blocks;
+ __virtio16 padding[3];
+};
+
+struct virtio_mem_req {
+ __virtio16 type;
+ __virtio16 padding[3];
+
+ union {
+ struct virtio_mem_req_plug plug;
+ struct virtio_mem_req_unplug unplug;
+ struct virtio_mem_req_state state;
+ } u;
+};
+
+
+/* --- virtio-mem: host -> guest response --- */
+
+/*
+ * Request processed successfully, applicable for
+ * - VIRTIO_MEM_REQ_PLUG
+ * - VIRTIO_MEM_REQ_UNPLUG
+ * - VIRTIO_MEM_REQ_UNPLUG_ALL
+ * - VIRTIO_MEM_REQ_STATE
+ */
+#define VIRTIO_MEM_RESP_ACK 0
+/*
+ * Request denied - e.g. trying to plug more than requested, applicable for
+ * - VIRTIO_MEM_REQ_PLUG
+ */
+#define VIRTIO_MEM_RESP_NACK 1
+/*
+ * Request cannot be processed right now, try again later, applicable for
+ * - VIRTIO_MEM_REQ_PLUG
+ * - VIRTIO_MEM_REQ_UNPLUG
+ * - VIRTIO_MEM_REQ_UNPLUG_ALL
+ */
+#define VIRTIO_MEM_RESP_BUSY 2
+/*
+ * Error in request (e.g. addresses/alignment), applicable for
+ * - VIRTIO_MEM_REQ_PLUG
+ * - VIRTIO_MEM_REQ_UNPLUG
+ * - VIRTIO_MEM_REQ_STATE
+ */
+#define VIRTIO_MEM_RESP_ERROR 3
+
+
+/* State of memory blocks is "plugged" */
+#define VIRTIO_MEM_STATE_PLUGGED 0
+/* State of memory blocks is "unplugged" */
+#define VIRTIO_MEM_STATE_UNPLUGGED 1
+/* State of memory blocks is "mixed" */
+#define VIRTIO_MEM_STATE_MIXED 2
+
+struct virtio_mem_resp_state {
+ __virtio16 state;
+};
+
+struct virtio_mem_resp {
+ __virtio16 type;
+ __virtio16 padding[3];
+
+ union {
+ struct virtio_mem_resp_state state;
+ } u;
+};
+
+/* --- virtio-mem: configuration --- */
+
+struct virtio_mem_config {
+ /* Block size and alignment. Cannot change. */
+ __u64 block_size;
+ /* Valid with VIRTIO_MEM_F_ACPI_PXM. Cannot change. */
+ __u16 node_id;
+ __u8 padding[6];
+ /* Start address of the memory region. Cannot change. */
+ __u64 addr;
+ /* Region size (maximum). Cannot change. */
+ __u64 region_size;
+ /*
+ * Currently usable region size. Can grow up to region_size. Can
+ * shrink due to VIRTIO_MEM_REQ_UNPLUG_ALL (in which case no config
+ * update will be sent).
+ */
+ __u64 usable_region_size;
+ /*
+ * Currently used size. Changes due to plug/unplug requests, but no
+ * config updates will be sent.
+ */
+ __u64 plugged_size;
+ /* Requested size. New plug requests cannot exceed it. Can change. */
+ __u64 requested_size;
+};
+
+#endif /* _LINUX_VIRTIO_MEM_H */
diff --git a/include/uapi/linux/virtio_ring.h b/include/uapi/linux/virtio_ring.h
index 559f42e73315..476d3e5c0fe7 100644
--- a/include/uapi/linux/virtio_ring.h
+++ b/include/uapi/linux/virtio_ring.h
@@ -86,6 +86,13 @@
* at the end of the used ring. Guest should ignore the used->flags field. */
#define VIRTIO_RING_F_EVENT_IDX 29
+/* Alignment requirements for vring elements.
+ * When using pre-virtio 1.0 layout, these fall out naturally.
+ */
+#define VRING_AVAIL_ALIGN_SIZE 2
+#define VRING_USED_ALIGN_SIZE 4
+#define VRING_DESC_ALIGN_SIZE 16
+
/* Virtio ring descriptors: 16 bytes. These can chain together via "next". */
struct vring_desc {
/* Address (guest-physical). */
@@ -112,28 +119,47 @@ struct vring_used_elem {
__virtio32 len;
};
+typedef struct vring_used_elem __attribute__((aligned(VRING_USED_ALIGN_SIZE)))
+ vring_used_elem_t;
+
struct vring_used {
__virtio16 flags;
__virtio16 idx;
- struct vring_used_elem ring[];
+ vring_used_elem_t ring[];
};
+/*
+ * The ring element addresses are passed between components with different
+ * alignments assumptions. Thus, we might need to decrease the compiler-selected
+ * alignment, and so must use a typedef to make sure the aligned attribute
+ * actually takes hold:
+ *
+ * https://gcc.gnu.org/onlinedocs//gcc/Common-Type-Attributes.html#Common-Type-Attributes
+ *
+ * When used on a struct, or struct member, the aligned attribute can only
+ * increase the alignment; in order to decrease it, the packed attribute must
+ * be specified as well. When used as part of a typedef, the aligned attribute
+ * can both increase and decrease alignment, and specifying the packed
+ * attribute generates a warning.
+ */
+typedef struct vring_desc __attribute__((aligned(VRING_DESC_ALIGN_SIZE)))
+ vring_desc_t;
+typedef struct vring_avail __attribute__((aligned(VRING_AVAIL_ALIGN_SIZE)))
+ vring_avail_t;
+typedef struct vring_used __attribute__((aligned(VRING_USED_ALIGN_SIZE)))
+ vring_used_t;
+
struct vring {
unsigned int num;
- struct vring_desc *desc;
+ vring_desc_t *desc;
- struct vring_avail *avail;
+ vring_avail_t *avail;
- struct vring_used *used;
+ vring_used_t *used;
};
-/* Alignment requirements for vring elements.
- * When using pre-virtio 1.0 layout, these fall out naturally.
- */
-#define VRING_AVAIL_ALIGN_SIZE 2
-#define VRING_USED_ALIGN_SIZE 4
-#define VRING_DESC_ALIGN_SIZE 16
+#ifndef VIRTIO_RING_NO_LEGACY
/* The standard layout for the ring is a continuous chunk of memory which looks
* like this. We assume num is a power of 2.
@@ -181,6 +207,8 @@ static inline unsigned vring_size(unsigned int num, unsigned long align)
+ sizeof(__virtio16) * 3 + sizeof(struct vring_used_elem) * num;
}
+#endif /* VIRTIO_RING_NO_LEGACY */
+
/* The following is used with USED_EVENT_IDX and AVAIL_EVENT_IDX */
/* Assuming a given event_idx value from the other side, if
* we have just incremented index from old to new_idx,
diff --git a/include/uapi/mtd/mtd-abi.h b/include/uapi/mtd/mtd-abi.h
index 47ffe3208c27..4b48fbf7d343 100644
--- a/include/uapi/mtd/mtd-abi.h
+++ b/include/uapi/mtd/mtd-abi.h
@@ -104,6 +104,7 @@ struct mtd_write_req {
#define MTD_BIT_WRITEABLE 0x800 /* Single bits can be flipped */
#define MTD_NO_ERASE 0x1000 /* No erase necessary */
#define MTD_POWERUP_LOCK 0x2000 /* Always locked after reset */
+#define MTD_SLC_ON_MLC_EMULATION 0x4000 /* Emulate SLC behavior on MLC NANDs */
/* Some common devices / combinations of capabilities */
#define MTD_CAP_ROM 0