Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Martin Schwidefsky:
"Just a random collection of bug-fixes and cleanups, nothing new in
this merge request."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (46 commits)
s390/ap: Fix wrong or missing comments
s390/ap: move receive callback to message struct
s390/dasd: re-prioritize partition detection message
s390/qeth: reshuffle initialization
s390/qeth: cleanup drv attr usage
s390/claw: cleanup drv attr usage
s390/lcs: cleanup drv attr usage
s390/ctc: cleanup drv attr usage
s390/ccwgroup: remove ccwgroup_create_from_string
s390/qeth: stop using struct ccwgroup driver for discipline callbacks
s390/qeth: switch to ccwgroup_create_dev
s390/claw: switch to ccwgroup_create_dev
s390/lcs: switch to ccwgroup_create_dev
s390/ctcm: switch to ccwgroup_create_dev
s390/ccwgroup: exploit ccwdev_by_dev_id
s390/ccwgroup: introduce ccwgroup_create_dev
s390: fix race on TIF_MCCK_PENDING
s390/barrier: make use of fast-bcr facility
s390/barrier: cleanup barrier functions
s390/claw: remove "eieio" calls
...
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 9015060..b42f286 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -217,7 +217,7 @@
def_bool y
prompt "Kernel support for 31 bit emulation"
depends on 64BIT
- select COMPAT_BINFMT_ELF
+ select COMPAT_BINFMT_ELF if BINFMT_ELF
select ARCH_WANT_OLD_COMPAT_IPC
help
Select this option if you want to enable your system kernel to
@@ -234,6 +234,25 @@
config AUDIT_ARCH
def_bool y
+config HAVE_MARCH_Z900_FEATURES
+ def_bool n
+
+config HAVE_MARCH_Z990_FEATURES
+ def_bool n
+ select HAVE_MARCH_Z900_FEATURES
+
+config HAVE_MARCH_Z9_109_FEATURES
+ def_bool n
+ select HAVE_MARCH_Z990_FEATURES
+
+config HAVE_MARCH_Z10_FEATURES
+ def_bool n
+ select HAVE_MARCH_Z9_109_FEATURES
+
+config HAVE_MARCH_Z196_FEATURES
+ def_bool n
+ select HAVE_MARCH_Z10_FEATURES
+
comment "Code generation options"
choice
@@ -249,6 +268,7 @@
config MARCH_Z900
bool "IBM zSeries model z800 and z900"
+ select HAVE_MARCH_Z900_FEATURES if 64BIT
help
Select this to enable optimizations for model z800/z900 (2064 and
2066 series). This will enable some optimizations that are not
@@ -256,6 +276,7 @@
config MARCH_Z990
bool "IBM zSeries model z890 and z990"
+ select HAVE_MARCH_Z990_FEATURES if 64BIT
help
Select this to enable optimizations for model z890/z990 (2084 and
2086 series). The kernel will be slightly faster but will not work
@@ -263,6 +284,7 @@
config MARCH_Z9_109
bool "IBM System z9"
+ select HAVE_MARCH_Z9_109_FEATURES if 64BIT
help
Select this to enable optimizations for IBM System z9 (2094 and
2096 series). The kernel will be slightly faster but will not work
@@ -270,6 +292,7 @@
config MARCH_Z10
bool "IBM System z10"
+ select HAVE_MARCH_Z10_FEATURES if 64BIT
help
Select this to enable optimizations for IBM System z10 (2097 and
2098 series). The kernel will be slightly faster but will not work
@@ -277,6 +300,7 @@
config MARCH_Z196
bool "IBM zEnterprise 114 and 196"
+ select HAVE_MARCH_Z196_FEATURES if 64BIT
help
Select this to enable optimizations for IBM zEnterprise 114 and 196
(2818 and 2817 series). The kernel will be slightly faster but will
@@ -406,33 +430,6 @@
comment "Misc"
-config IPL
- def_bool y
- prompt "Builtin IPL record support"
- help
- If you want to use the produced kernel to IPL directly from a
- device, you have to merge a bootsector specific to the device
- into the first bytes of the kernel. You will have to select the
- IPL device.
-
-choice
- prompt "IPL method generated into head.S"
- depends on IPL
- default IPL_VM
- help
- Select "tape" if you want to IPL the image from a Tape.
-
- Select "vm_reader" if you are running under VM/ESA and want
- to IPL the image from the emulated card reader.
-
-config IPL_TAPE
- bool "tape"
-
-config IPL_VM
- bool "vm_reader"
-
-endchoice
-
source "fs/Kconfig.binfmt"
config FORCE_MAX_ZONEORDER
@@ -569,7 +566,7 @@
config CRASH_DUMP
bool "kernel crash dumps"
- depends on 64BIT
+ depends on 64BIT && SMP
select KEXEC
help
Generate crash dump after being started by kexec.
diff --git a/arch/s390/boot/.gitignore b/arch/s390/boot/.gitignore
new file mode 100644
index 0000000..017d591
--- /dev/null
+++ b/arch/s390/boot/.gitignore
@@ -0,0 +1,2 @@
+image
+bzImage
diff --git a/arch/s390/boot/compressed/.gitignore b/arch/s390/boot/compressed/.gitignore
new file mode 100644
index 0000000..ae06b9b
--- /dev/null
+++ b/arch/s390/boot/compressed/.gitignore
@@ -0,0 +1,3 @@
+sizes.h
+vmlinux
+vmlinux.lds
diff --git a/arch/s390/defconfig b/arch/s390/defconfig
index 1957a9d..37d2bf2 100644
--- a/arch/s390/defconfig
+++ b/arch/s390/defconfig
@@ -155,7 +155,6 @@
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
-CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SALSA20=m
diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h
index 451273a..10a5088 100644
--- a/arch/s390/include/asm/barrier.h
+++ b/arch/s390/include/asm/barrier.h
@@ -11,25 +11,28 @@
* Force strict CPU ordering.
* And yes, this is required on UP too when we're talking
* to devices.
- *
- * This is very similar to the ppc eieio/sync instruction in that is
- * does a checkpoint syncronisation & makes sure that
- * all memory ops have completed wrt other CPU's ( see 7-15 POP DJB ).
*/
-#define eieio() asm volatile("bcr 15,0" : : : "memory")
-#define SYNC_OTHER_CORES(x) eieio()
-#define mb() eieio()
-#define rmb() eieio()
-#define wmb() eieio()
-#define read_barrier_depends() do { } while(0)
-#define smp_mb() mb()
-#define smp_rmb() rmb()
-#define smp_wmb() wmb()
-#define smp_read_barrier_depends() read_barrier_depends()
-#define smp_mb__before_clear_bit() smp_mb()
-#define smp_mb__after_clear_bit() smp_mb()
+static inline void mb(void)
+{
+#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
+ /* Fast-BCR without checkpoint synchronization */
+ asm volatile("bcr 14,0" : : : "memory");
+#else
+ asm volatile("bcr 15,0" : : : "memory");
+#endif
+}
-#define set_mb(var, value) do { var = value; mb(); } while (0)
+#define rmb() mb()
+#define wmb() mb()
+#define read_barrier_depends() do { } while(0)
+#define smp_mb() mb()
+#define smp_rmb() rmb()
+#define smp_wmb() wmb()
+#define smp_read_barrier_depends() read_barrier_depends()
+#define smp_mb__before_clear_bit() smp_mb()
+#define smp_mb__after_clear_bit() smp_mb()
+
+#define set_mb(var, value) do { var = value; mb(); } while (0)
#endif /* __ASM_BARRIER_H */
diff --git a/arch/s390/include/asm/ccwgroup.h b/arch/s390/include/asm/ccwgroup.h
index f2ea2c5..f2ef34f 100644
--- a/arch/s390/include/asm/ccwgroup.h
+++ b/arch/s390/include/asm/ccwgroup.h
@@ -29,9 +29,7 @@
/**
* struct ccwgroup_driver - driver for ccw group devices
- * @max_slaves: maximum number of slave devices
- * @driver_id: unique id
- * @probe: function called on probe
+ * @setup: function called during device creation to setup the device
* @remove: function called on remove
* @set_online: function called when device is set online
* @set_offline: function called when device is set offline
@@ -44,10 +42,7 @@
* @driver: embedded driver structure
*/
struct ccwgroup_driver {
- int max_slaves;
- unsigned long driver_id;
-
- int (*probe) (struct ccwgroup_device *);
+ int (*setup) (struct ccwgroup_device *);
void (*remove) (struct ccwgroup_device *);
int (*set_online) (struct ccwgroup_device *);
int (*set_offline) (struct ccwgroup_device *);
@@ -63,9 +58,8 @@
extern int ccwgroup_driver_register (struct ccwgroup_driver *cdriver);
extern void ccwgroup_driver_unregister (struct ccwgroup_driver *cdriver);
-int ccwgroup_create_from_string(struct device *root, unsigned int creator_id,
- struct ccw_driver *cdrv, int num_devices,
- const char *buf);
+int ccwgroup_create_dev(struct device *root, struct ccwgroup_driver *gdrv,
+ int num_devices, const char *buf);
extern int ccwgroup_probe_ccwdev(struct ccw_device *cdev);
extern void ccwgroup_remove_ccwdev(struct ccw_device *cdev);
diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h
index b7ff6af..27216d3 100644
--- a/arch/s390/include/asm/io.h
+++ b/arch/s390/include/asm/io.h
@@ -38,11 +38,8 @@
return (void *) address;
}
-/*
- * Convert a physical pointer to a virtual kernel pointer for /dev/mem
- * access
- */
-#define xlate_dev_mem_ptr(p) __va(p)
+void *xlate_dev_mem_ptr(unsigned long phys);
+void unxlate_dev_mem_ptr(unsigned long phys, void *addr);
/*
* Convert a virtual cached pointer to an uncached pointer
diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h
index d75c8e7..f039d86 100644
--- a/arch/s390/include/asm/qdio.h
+++ b/arch/s390/include/asm/qdio.h
@@ -258,11 +258,6 @@
u8 val[QDIO_MAX_BUFFERS_PER_Q];
} __attribute__ ((packed, aligned(256)));
-#define CHSC_AC2_MULTI_BUFFER_AVAILABLE 0x0080
-#define CHSC_AC2_MULTI_BUFFER_ENABLED 0x0040
-#define CHSC_AC2_DATA_DIV_AVAILABLE 0x0010
-#define CHSC_AC2_DATA_DIV_ENABLED 0x0002
-
/**
* struct qdio_outbuf_state - SBAL related asynchronous operation information
* (for communication with upper layer programs)
@@ -293,6 +288,8 @@
#define AC1_SC_QEBSM_AVAILABLE 0x02 /* available for subchannel */
#define AC1_SC_QEBSM_ENABLED 0x01 /* enabled for subchannel */
+#define CHSC_AC2_MULTI_BUFFER_AVAILABLE 0x0080
+#define CHSC_AC2_MULTI_BUFFER_ENABLED 0x0040
#define CHSC_AC2_DATA_DIV_AVAILABLE 0x0010
#define CHSC_AC2_DATA_DIV_ENABLED 0x0002
@@ -328,11 +325,13 @@
int, int, unsigned long);
/* qdio errors reported to the upper-layer program */
-#define QDIO_ERROR_SIGA_TARGET 0x02
-#define QDIO_ERROR_SIGA_ACCESS_EXCEPTION 0x10
-#define QDIO_ERROR_SIGA_BUSY 0x20
-#define QDIO_ERROR_ACTIVATE_CHECK_CONDITION 0x40
-#define QDIO_ERROR_SLSB_STATE 0x80
+#define QDIO_ERROR_ACTIVATE 0x0001
+#define QDIO_ERROR_GET_BUF_STATE 0x0002
+#define QDIO_ERROR_SET_BUF_STATE 0x0004
+#define QDIO_ERROR_SLSB_STATE 0x0100
+
+#define QDIO_ERROR_FATAL 0x00ff
+#define QDIO_ERROR_TEMPORARY 0xff00
/* for qdio_cleanup */
#define QDIO_FLAG_CLEANUP_USING_CLEAR 0x01
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index b21e46e..7244e1f 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -82,7 +82,6 @@
#define MACHINE_FLAG_LPAR (1UL << 12)
#define MACHINE_FLAG_SPP (1UL << 13)
#define MACHINE_FLAG_TOPOLOGY (1UL << 14)
-#define MACHINE_FLAG_STCKF (1UL << 15)
#define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
#define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
@@ -101,7 +100,6 @@
#define MACHINE_HAS_PFMF (0)
#define MACHINE_HAS_SPP (0)
#define MACHINE_HAS_TOPOLOGY (0)
-#define MACHINE_HAS_STCKF (0)
#else /* __s390x__ */
#define MACHINE_HAS_IEEE (1)
#define MACHINE_HAS_CSP (1)
@@ -113,7 +111,6 @@
#define MACHINE_HAS_PFMF (S390_lowcore.machine_flags & MACHINE_FLAG_PFMF)
#define MACHINE_HAS_SPP (S390_lowcore.machine_flags & MACHINE_FLAG_SPP)
#define MACHINE_HAS_TOPOLOGY (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY)
-#define MACHINE_HAS_STCKF (S390_lowcore.machine_flags & MACHINE_FLAG_STCKF)
#endif /* __s390x__ */
#define ZFCPDUMP_HSA_SIZE (32UL<<20)
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
index a730381..003b04e 100644
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -95,7 +95,6 @@
#define TIF_SYSCALL_AUDIT 9 /* syscall auditing active */
#define TIF_SECCOMP 10 /* secure computing */
#define TIF_SYSCALL_TRACEPOINT 11 /* syscall tracepoint instrumentation */
-#define TIF_SIE 12 /* guest execution active */
#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling
TIF_NEED_RESCHED */
#define TIF_31BIT 17 /* 32bit process */
@@ -114,7 +113,6 @@
#define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT)
#define _TIF_SECCOMP (1<<TIF_SECCOMP)
#define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT)
-#define _TIF_SIE (1<<TIF_SIE)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_31BIT (1<<TIF_31BIT)
#define _TIF_SINGLE_STEP (1<<TIF_SINGLE_STEP)
diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h
index c447a27..239ece9 100644
--- a/arch/s390/include/asm/timex.h
+++ b/arch/s390/include/asm/timex.h
@@ -73,11 +73,15 @@
typedef unsigned long long cycles_t;
-static inline unsigned long long get_clock (void)
+static inline unsigned long long get_clock(void)
{
unsigned long long clk;
+#ifdef CONFIG_HAVE_MARCH_Z9_109_FEATURES
+ asm volatile(".insn s,0xb27c0000,%0" : "=Q" (clk) : : "cc");
+#else
asm volatile("stck %0" : "=Q" (clk) : : "cc");
+#endif
return clk;
}
@@ -86,17 +90,6 @@
asm volatile("stcke %0" : "=Q" (*clk) : : "cc");
}
-static inline unsigned long long get_clock_fast(void)
-{
- unsigned long long clk;
-
- if (MACHINE_HAS_STCKF)
- asm volatile(".insn s,0xb27c0000,%0" : "=Q" (clk) : : "cc");
- else
- clk = get_clock();
- return clk;
-}
-
static inline unsigned long long get_clock_xt(void)
{
unsigned char clk[16];
diff --git a/arch/s390/kernel/.gitignore b/arch/s390/kernel/.gitignore
new file mode 100644
index 0000000..c5f676c
--- /dev/null
+++ b/arch/s390/kernel/.gitignore
@@ -0,0 +1 @@
+vmlinux.lds
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index 28040fd..377c096 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -437,13 +437,6 @@
sp = current->sas_ss_sp + current->sas_ss_size;
}
- /* This is the legacy signal stack switching. */
- else if (!user_mode(regs) &&
- !(ka->sa.sa_flags & SA_RESTORER) &&
- ka->sa.sa_restorer) {
- sp = (unsigned long) ka->sa.sa_restorer;
- }
-
return (void __user *)((sp - frame_size) & -8ul);
}
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 9475e68..d84181f 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -374,8 +374,6 @@
S390_lowcore.machine_flags |= MACHINE_FLAG_MVCOS;
if (test_facility(40))
S390_lowcore.machine_flags |= MACHINE_FLAG_SPP;
- if (test_facility(25))
- S390_lowcore.machine_flags |= MACHINE_FLAG_STCKF;
#endif
}
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 74ee563..1ae93b5 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -145,22 +145,23 @@
* gpr2 = prev
*/
ENTRY(__switch_to)
+ stm %r6,%r15,__SF_GPRS(%r15) # store gprs of prev task
+ st %r15,__THREAD_ksp(%r2) # store kernel stack of prev
l %r4,__THREAD_info(%r2) # get thread_info of prev
l %r5,__THREAD_info(%r3) # get thread_info of next
+ lr %r15,%r5
+ ahi %r15,STACK_SIZE # end of kernel stack of next
+ st %r3,__LC_CURRENT # store task struct of next
+ st %r5,__LC_THREAD_INFO # store thread info of next
+ st %r15,__LC_KERNEL_STACK # store end of kernel stack
+ lctl %c4,%c4,__TASK_pid(%r3) # load pid to control reg. 4
+ mvc __LC_CURRENT_PID(4,%r0),__TASK_pid(%r3) # store pid of next
+ l %r15,__THREAD_ksp(%r3) # load kernel stack of next
tm __TI_flags+3(%r4),_TIF_MCCK_PENDING # machine check pending?
jz 0f
ni __TI_flags+3(%r4),255-_TIF_MCCK_PENDING # clear flag in prev
oi __TI_flags+3(%r5),_TIF_MCCK_PENDING # set it in next
-0: stm %r6,%r15,__SF_GPRS(%r15) # store gprs of prev task
- st %r15,__THREAD_ksp(%r2) # store kernel stack of prev
- l %r15,__THREAD_ksp(%r3) # load kernel stack of next
- lctl %c4,%c4,__TASK_pid(%r3) # load pid to control reg. 4
- lm %r6,%r15,__SF_GPRS(%r15) # load gprs of next task
- st %r3,__LC_CURRENT # store task struct of next
- mvc __LC_CURRENT_PID(4,%r0),__TASK_pid(%r3) # store pid of next
- st %r5,__LC_THREAD_INFO # store thread info of next
- ahi %r5,STACK_SIZE # end of kernel stack of next
- st %r5,__LC_KERNEL_STACK # store end of kernel stack
+0: lm %r6,%r15,__SF_GPRS(%r15) # load gprs of next task
br %r14
__critical_start:
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index 4e1c292..229fe1d 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -81,16 +81,14 @@
.macro HANDLE_SIE_INTERCEPT scratch
#if defined(CONFIG_KVM) || defined(CONFIG_KVM_MODULE)
- tm __TI_flags+6(%r12),_TIF_SIE>>8
- jz .+42
- tm __LC_MACHINE_FLAGS+6,0x20 # MACHINE_FLAG_SPP
- jz .+8
- .insn s,0xb2800000,BASED(.Lhost_id) # set host id
+ tmhh %r8,0x0001 # interrupting from user ?
+ jnz .+42
lgr \scratch,%r9
slg \scratch,BASED(.Lsie_loop)
clg \scratch,BASED(.Lsie_length)
- jhe .+10
+ jhe .+22
lg %r9,BASED(.Lsie_loop)
+ SPP BASED(.Lhost_id) # set host id
#endif
.endm
@@ -148,6 +146,14 @@
ssm __LC_RETURN_PSW
.endm
+ .macro STCK savearea
+#ifdef CONFIG_HAVE_MARCH_Z9_109_FEATURES
+ .insn s,0xb27c0000,\savearea # store clock fast
+#else
+ .insn s,0xb2050000,\savearea # store clock
+#endif
+ .endm
+
.section .kprobes.text, "ax"
/*
@@ -158,22 +164,23 @@
* gpr2 = prev
*/
ENTRY(__switch_to)
+ stmg %r6,%r15,__SF_GPRS(%r15) # store gprs of prev task
+ stg %r15,__THREAD_ksp(%r2) # store kernel stack of prev
lg %r4,__THREAD_info(%r2) # get thread_info of prev
lg %r5,__THREAD_info(%r3) # get thread_info of next
+ lgr %r15,%r5
+ aghi %r15,STACK_SIZE # end of kernel stack of next
+ stg %r3,__LC_CURRENT # store task struct of next
+ stg %r5,__LC_THREAD_INFO # store thread info of next
+ stg %r15,__LC_KERNEL_STACK # store end of kernel stack
+ lctl %c4,%c4,__TASK_pid(%r3) # load pid to control reg. 4
+ mvc __LC_CURRENT_PID+4(4,%r0),__TASK_pid(%r3) # store pid of next
+ lg %r15,__THREAD_ksp(%r3) # load kernel stack of next
tm __TI_flags+7(%r4),_TIF_MCCK_PENDING # machine check pending?
jz 0f
ni __TI_flags+7(%r4),255-_TIF_MCCK_PENDING # clear flag in prev
oi __TI_flags+7(%r5),_TIF_MCCK_PENDING # set it in next
-0: stmg %r6,%r15,__SF_GPRS(%r15) # store gprs of prev task
- stg %r15,__THREAD_ksp(%r2) # store kernel stack of prev
- lg %r15,__THREAD_ksp(%r3) # load kernel stack of next
- lctl %c4,%c4,__TASK_pid(%r3) # load pid to control reg. 4
- lmg %r6,%r15,__SF_GPRS(%r15) # load gprs of next task
- stg %r3,__LC_CURRENT # store task struct of next
- mvc __LC_CURRENT_PID+4(4,%r0),__TASK_pid(%r3) # store pid of next
- stg %r5,__LC_THREAD_INFO # store thread info of next
- aghi %r5,STACK_SIZE # end of kernel stack of next
- stg %r5,__LC_KERNEL_STACK # store end of kernel stack
+0: lmg %r6,%r15,__SF_GPRS(%r15) # load gprs of next task
br %r14
__critical_start:
@@ -458,7 +465,7 @@
* IO interrupt handler routine
*/
ENTRY(io_int_handler)
- stck __LC_INT_CLOCK
+ STCK __LC_INT_CLOCK
stpt __LC_ASYNC_ENTER_TIMER
stmg %r8,%r15,__LC_SAVE_AREA_ASYNC
lg %r10,__LC_LAST_BREAK
@@ -604,7 +611,7 @@
* External interrupt handler routine
*/
ENTRY(ext_int_handler)
- stck __LC_INT_CLOCK
+ STCK __LC_INT_CLOCK
stpt __LC_ASYNC_ENTER_TIMER
stmg %r8,%r15,__LC_SAVE_AREA_ASYNC
lg %r10,__LC_LAST_BREAK
@@ -622,6 +629,7 @@
mvc __PT_R8(64,%r11),__LC_SAVE_AREA_ASYNC
stmg %r8,%r9,__PT_PSW(%r11)
TRACE_IRQS_OFF
+ xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
lghi %r1,4096
lgr %r2,%r11 # pass pointer to pt_regs
llgf %r3,__LC_EXT_CPU_ADDR # get cpu address + interruption code
@@ -638,7 +646,7 @@
larl %r1,psw_idle_lpsw+4
stg %r1,__SF_EMPTY+8(%r15)
larl %r1,.Lvtimer_max
- stck __IDLE_ENTER(%r2)
+ STCK __IDLE_ENTER(%r2)
ltr %r5,%r5
stpt __VQ_IDLE_ENTER(%r3)
jz psw_idle_lpsw
@@ -654,7 +662,7 @@
* Machine check handler routines
*/
ENTRY(mcck_int_handler)
- stck __LC_MCCK_CLOCK
+ STCK __LC_MCCK_CLOCK
la %r1,4095 # revalidate r1
spt __LC_CPU_TIMER_SAVE_AREA-4095(%r1) # revalidate cpu timer
lmg %r0,%r15,__LC_GPREGS_SAVE_AREA-4095(%r1)# revalidate gprs
@@ -967,7 +975,6 @@
xc __SF_EMPTY+16(8,%r15),__SF_EMPTY+16(%r15) # host id == 0
lmg %r0,%r13,0(%r3) # load guest gprs 0-13
lg %r14,__LC_THREAD_INFO # pointer thread_info struct
- oi __TI_flags+6(%r14),_TIF_SIE>>8
sie_loop:
lg %r14,__LC_THREAD_INFO # pointer thread_info struct
tm __TI_flags+7(%r14),_TIF_EXIT_SIE
@@ -985,7 +992,6 @@
lg %r14,__LC_THREAD_INFO # pointer thread_info struct
sie_exit:
lctlg %c1,%c1,__LC_USER_ASCE # load primary asce
- ni __TI_flags+6(%r14),255-(_TIF_SIE>>8)
lg %r14,__SF_EMPTY+8(%r15) # load guest register save area
stmg %r0,%r13,0(%r14) # save guest gprs 0-13
lmg %r6,%r14,__SF_GPRS(%r15) # restore kernel registers
@@ -994,7 +1000,6 @@
sie_fault:
lctlg %c1,%c1,__LC_USER_ASCE # load primary asce
lg %r14,__LC_THREAD_INFO # pointer thread_info struct
- ni __TI_flags+6(%r14),255-(_TIF_SIE>>8)
lg %r14,__SF_EMPTY+8(%r15) # load guest register save area
stmg %r0,%r13,0(%r14) # save guest gprs 0-13
lmg %r6,%r14,__SF_GPRS(%r15) # restore kernel registers
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S
index adccd90..4939d15 100644
--- a/arch/s390/kernel/head.S
+++ b/arch/s390/kernel/head.S
@@ -34,125 +34,7 @@
#endif
__HEAD
-#ifndef CONFIG_IPL
- .org 0
- .long 0x00080000,0x80000000+startup # Just a restart PSW
-#else
-#ifdef CONFIG_IPL_TAPE
-#define IPL_BS 1024
- .org 0
- .long 0x00080000,0x80000000+iplstart # The first 24 bytes are loaded
- .long 0x27000000,0x60000001 # by ipl to addresses 0-23.
- .long 0x02000000,0x20000000+IPL_BS # (a PSW and two CCWs).
- .long 0x00000000,0x00000000 # external old psw
- .long 0x00000000,0x00000000 # svc old psw
- .long 0x00000000,0x00000000 # program check old psw
- .long 0x00000000,0x00000000 # machine check old psw
- .long 0x00000000,0x00000000 # io old psw
- .long 0x00000000,0x00000000
- .long 0x00000000,0x00000000
- .long 0x00000000,0x00000000
- .long 0x000a0000,0x00000058 # external new psw
- .long 0x000a0000,0x00000060 # svc new psw
- .long 0x000a0000,0x00000068 # program check new psw
- .long 0x000a0000,0x00000070 # machine check new psw
- .long 0x00080000,0x80000000+.Lioint # io new psw
- .org 0x100
-#
-# subroutine for loading from tape
-# Parameters:
-# R1 = device number
-# R2 = load address
-.Lloader:
- st %r14,.Lldret
- la %r3,.Lorbread # r3 = address of orb
- la %r5,.Lirb # r5 = address of irb
- st %r2,.Lccwread+4 # initialize CCW data addresses
- lctl %c6,%c6,.Lcr6
- slr %r2,%r2
-.Lldlp:
- la %r6,3 # 3 retries
-.Lssch:
- ssch 0(%r3) # load chunk of IPL_BS bytes
- bnz .Llderr
-.Lw4end:
- bas %r14,.Lwait4io
- tm 8(%r5),0x82 # do we have a problem ?
- bnz .Lrecov
- slr %r7,%r7
- icm %r7,3,10(%r5) # get residual count
- lcr %r7,%r7
- la %r7,IPL_BS(%r7) # IPL_BS-residual=#bytes read
- ar %r2,%r7 # add to total size
- tm 8(%r5),0x01 # found a tape mark ?
- bnz .Ldone
- l %r0,.Lccwread+4 # update CCW data addresses
- ar %r0,%r7
- st %r0,.Lccwread+4
- b .Lldlp
-.Ldone:
- l %r14,.Lldret
- br %r14 # r2 contains the total size
-.Lrecov:
- bas %r14,.Lsense # do the sensing
- bct %r6,.Lssch # dec. retry count & branch
- b .Llderr
-#
-# Sense subroutine
-#
-.Lsense:
- st %r14,.Lsnsret
- la %r7,.Lorbsense
- ssch 0(%r7) # start sense command
- bnz .Llderr
- bas %r14,.Lwait4io
- l %r14,.Lsnsret
- tm 8(%r5),0x82 # do we have a problem ?
- bnz .Llderr
- br %r14
-#
-# Wait for interrupt subroutine
-#
-.Lwait4io:
- lpsw .Lwaitpsw
-.Lioint:
- c %r1,0xb8 # compare subchannel number
- bne .Lwait4io
- tsch 0(%r5)
- slr %r0,%r0
- tm 8(%r5),0x82 # do we have a problem ?
- bnz .Lwtexit
- tm 8(%r5),0x04 # got device end ?
- bz .Lwait4io
-.Lwtexit:
- br %r14
-.Llderr:
- lpsw .Lcrash
-
- .align 8
-.Lorbread:
- .long 0x00000000,0x0080ff00,.Lccwread
- .align 8
-.Lorbsense:
- .long 0x00000000,0x0080ff00,.Lccwsense
- .align 8
-.Lccwread:
- .long 0x02200000+IPL_BS,0x00000000
-.Lccwsense:
- .long 0x04200001,0x00000000
-.Lwaitpsw:
- .long 0x020a0000,0x80000000+.Lioint
-
-.Lirb: .long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
-.Lcr6: .long 0xff000000
- .align 8
-.Lcrash:.long 0x000a0000,0x00000000
-.Lldret:.long 0
-.Lsnsret: .long 0
-#endif /* CONFIG_IPL_TAPE */
-
-#ifdef CONFIG_IPL_VM
#define IPL_BS 0x730
.org 0
.long 0x00080000,0x80000000+iplstart # The first 24 bytes are loaded
@@ -256,7 +138,6 @@
.long 0x02600050,0x00000000
.endr
.long 0x02200050,0x00000000
-#endif /* CONFIG_IPL_VM */
iplstart:
lh %r1,0xb8 # test if subchannel number
@@ -325,7 +206,6 @@
clc 0(3,%r2),.L_eof
bz .Lagain2
-#ifdef CONFIG_IPL_VM
#
# reset files in VM reader
#
@@ -358,7 +238,6 @@
.long 0x00080000,0x80000000+.Lrdrint
.Lrdrwaitpsw:
.long 0x020a0000,0x80000000+.Lrdrint
-#endif
#
# everything loaded, go for it
@@ -376,8 +255,6 @@
.L_eof: .long 0xc5d6c600 /* C'EOF' */
.L_hdr: .long 0xc8c4d900 /* C'HDR' */
-#endif /* CONFIG_IPL */
-
#
# SALIPL loader support. Based on a patch by Rob van der Heij.
# This entry point is called directly from the SALIPL loader and
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index f7582b2..8a4e2b7 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -235,13 +235,6 @@
sp = current->sas_ss_sp + current->sas_ss_size;
}
- /* This is the legacy signal stack switching. */
- else if (!user_mode(regs) &&
- !(ka->sa.sa_flags & SA_RESTORER) &&
- ka->sa.sa_restorer) {
- sp = (unsigned long) ka->sa.sa_restorer;
- }
-
return (void __user *)((sp - frame_size) & -8ul);
}
@@ -414,15 +407,6 @@
struct k_sigaction ka;
sigset_t *oldset;
- /*
- * We want the common case to go fast, which
- * is why we may in certain cases get here from
- * kernel mode. Just return without doing anything
- * if so.
- */
- if (!user_mode(regs))
- return;
-
if (test_thread_flag(TIF_RESTORE_SIGMASK))
oldset = ¤t->saved_sigmask;
else
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 1f77227..e505458 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -226,6 +226,8 @@
return -ENOMEM;
}
+#ifdef CONFIG_HOTPLUG_CPU
+
static void pcpu_free_lowcore(struct pcpu *pcpu)
{
pcpu_sigp_retry(pcpu, sigp_set_prefix, 0);
@@ -247,6 +249,8 @@
}
}
+#endif /* CONFIG_HOTPLUG_CPU */
+
static void pcpu_prepare_secondary(struct pcpu *pcpu, int cpu)
{
struct _lowcore *lc = pcpu->lowcore;
diff --git a/arch/s390/kernel/vdso32/.gitignore b/arch/s390/kernel/vdso32/.gitignore
new file mode 100644
index 0000000..e45fba9
--- /dev/null
+++ b/arch/s390/kernel/vdso32/.gitignore
@@ -0,0 +1 @@
+vdso32.lds
diff --git a/arch/s390/kernel/vdso64/.gitignore b/arch/s390/kernel/vdso64/.gitignore
new file mode 100644
index 0000000..3fd18cf
--- /dev/null
+++ b/arch/s390/kernel/vdso64/.gitignore
@@ -0,0 +1 @@
+vdso64.lds
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 46ef3fd..72cec9e 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -294,7 +294,7 @@
down_read(&mm->mmap_sem);
#ifdef CONFIG_PGSTE
- if (test_tsk_thread_flag(current, TIF_SIE) && S390_lowcore.gmap) {
+ if ((current->flags & PF_VCPU) && S390_lowcore.gmap) {
address = __gmap_fault(address,
(struct gmap *) S390_lowcore.gmap);
if (address == -EFAULT) {
@@ -549,19 +549,15 @@
if ((subcode & 0xff00) != __SUBCODE_MASK)
return;
kstat_cpu(smp_processor_id()).irqs[EXTINT_PFL]++;
- if (subcode & 0x0080) {
- /* Get the token (= pid of the affected task). */
- pid = sizeof(void *) == 4 ? param32 : param64;
- rcu_read_lock();
- tsk = find_task_by_pid_ns(pid, &init_pid_ns);
- if (tsk)
- get_task_struct(tsk);
- rcu_read_unlock();
- if (!tsk)
- return;
- } else {
- tsk = current;
- }
+ /* Get the token (= pid of the affected task). */
+ pid = sizeof(void *) == 4 ? param32 : param64;
+ rcu_read_lock();
+ tsk = find_task_by_pid_ns(pid, &init_pid_ns);
+ if (tsk)
+ get_task_struct(tsk);
+ rcu_read_unlock();
+ if (!tsk)
+ return;
spin_lock(&pfault_lock);
if (subcode & 0x0080) {
/* signal bit is set -> a page has been swapped in by VM */
@@ -574,6 +570,7 @@
tsk->thread.pfault_wait = 0;
list_del(&tsk->thread.list);
wake_up_process(tsk);
+ put_task_struct(tsk);
} else {
/* Completion interrupt was faster than initial
* interrupt. Set pfault_wait to -1 so the initial
@@ -585,24 +582,35 @@
if (tsk->state == TASK_RUNNING)
tsk->thread.pfault_wait = -1;
}
- put_task_struct(tsk);
} else {
/* signal bit not set -> a real page is missing. */
- if (tsk->thread.pfault_wait == -1) {
+ if (WARN_ON_ONCE(tsk != current))
+ goto out;
+ if (tsk->thread.pfault_wait == 1) {
+ /* Already on the list with a reference: put to sleep */
+ __set_task_state(tsk, TASK_UNINTERRUPTIBLE);
+ set_tsk_need_resched(tsk);
+ } else if (tsk->thread.pfault_wait == -1) {
/* Completion interrupt was faster than the initial
* interrupt (pfault_wait == -1). Set pfault_wait
* back to zero and exit. */
tsk->thread.pfault_wait = 0;
} else {
/* Initial interrupt arrived before completion
- * interrupt. Let the task sleep. */
+ * interrupt. Let the task sleep.
+ * An extra task reference is needed since a different
+ * cpu may set the task state to TASK_RUNNING again
+ * before the scheduler is reached. */
+ get_task_struct(tsk);
tsk->thread.pfault_wait = 1;
list_add(&tsk->thread.list, &pfault_list);
- set_task_state(tsk, TASK_UNINTERRUPTIBLE);
+ __set_task_state(tsk, TASK_UNINTERRUPTIBLE);
set_tsk_need_resched(tsk);
}
}
+out:
spin_unlock(&pfault_lock);
+ put_task_struct(tsk);
}
static int __cpuinit pfault_cpu_notify(struct notifier_block *self,
@@ -620,6 +628,7 @@
list_del(&thread->list);
tsk = container_of(thread, struct task_struct, thread);
wake_up_process(tsk);
+ put_task_struct(tsk);
}
spin_unlock_irq(&pfault_lock);
break;
diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c
index 597bb2d..900de2b 100644
--- a/arch/s390/mm/hugetlbpage.c
+++ b/arch/s390/mm/hugetlbpage.c
@@ -58,6 +58,8 @@
ptep = (pte_t *) page[1].index;
if (!ptep)
return;
+ clear_table((unsigned long *) ptep, _PAGE_TYPE_EMPTY,
+ PTRS_PER_PTE * sizeof(pte_t));
page_table_free(&init_mm, (unsigned long *) ptep);
page[1].index = 0;
}
diff --git a/arch/s390/mm/maccess.c b/arch/s390/mm/maccess.c
index e1335dc..795a0a9 100644
--- a/arch/s390/mm/maccess.c
+++ b/arch/s390/mm/maccess.c
@@ -12,6 +12,7 @@
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/gfp.h>
+#include <linux/cpu.h>
#include <asm/ctl_reg.h>
/*
@@ -166,3 +167,69 @@
free_page((unsigned long) buf);
return rc;
}
+
+/*
+ * Check if physical address is within prefix or zero page
+ */
+static int is_swapped(unsigned long addr)
+{
+ unsigned long lc;
+ int cpu;
+
+ if (addr < sizeof(struct _lowcore))
+ return 1;
+ for_each_online_cpu(cpu) {
+ lc = (unsigned long) lowcore_ptr[cpu];
+ if (addr > lc + sizeof(struct _lowcore) - 1 || addr < lc)
+ continue;
+ return 1;
+ }
+ return 0;
+}
+
+/*
+ * Return swapped prefix or zero page address
+ */
+static unsigned long get_swapped(unsigned long addr)
+{
+ unsigned long prefix = store_prefix();
+
+ if (addr < sizeof(struct _lowcore))
+ return addr + prefix;
+ if (addr >= prefix && addr < prefix + sizeof(struct _lowcore))
+ return addr - prefix;
+ return addr;
+}
+
+/*
+ * Convert a physical pointer for /dev/mem access
+ *
+ * For swapped prefix pages a new buffer is returned that contains a copy of
+ * the absolute memory. The buffer size is maximum one page large.
+ */
+void *xlate_dev_mem_ptr(unsigned long addr)
+{
+ void *bounce = (void *) addr;
+ unsigned long size;
+
+ get_online_cpus();
+ preempt_disable();
+ if (is_swapped(addr)) {
+ size = PAGE_SIZE - (addr & ~PAGE_MASK);
+ bounce = (void *) __get_free_page(GFP_ATOMIC);
+ if (bounce)
+ memcpy_real(bounce, (void *) get_swapped(addr), size);
+ }
+ preempt_enable();
+ put_online_cpus();
+ return bounce;
+}
+
+/*
+ * Free converted buffer for /dev/mem access (if necessary)
+ */
+void unxlate_dev_mem_ptr(unsigned long addr, void *buf)
+{
+ if ((void *) addr != buf)
+ free_page((unsigned long) buf);
+}
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 6e765bf..a3db5a3 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -822,6 +822,8 @@
/* we copy the mm and let dup_mm create the page tables with_pgstes */
tsk->mm->context.alloc_pgste = 1;
+ /* make sure that both mms have a correct rss state */
+ sync_mm_rss(tsk->mm);
mm = dup_mm(tsk);
tsk->mm->context.alloc_pgste = 0;
if (!mm)
diff --git a/block/partitions/ibm.c b/block/partitions/ibm.c
index d513a07..1104aca 100644
--- a/block/partitions/ibm.c
+++ b/block/partitions/ibm.c
@@ -253,7 +253,7 @@
/* Are we not supposed to report this ? */
goto out_readerr;
} else
- printk(KERN_WARNING "Warning, expected Label VOL1 not "
+ printk(KERN_INFO "Expected Label VOL1 not "
"found, treating as CDL formated Disk");
}
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index dd414d9..371f13c 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -111,6 +111,7 @@
depends on S390
select CRYPTO_ALGAPI
select CRYPTO_BLKCIPHER
+ select CRYPTO_DES
help
This is the s390 hardware accelerated implementation of the
DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index 231a1d8..3650636 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -352,7 +352,17 @@
static int sclp_assign_storage(u16 rn)
{
- return do_assign_storage(0x000d0001, rn);
+ unsigned long long start, address;
+ int rc;
+
+ rc = do_assign_storage(0x000d0001, rn);
+ if (rc)
+ goto out;
+ start = address = rn2addr(rn);
+ for (; address < start + rzm; address += PAGE_SIZE)
+ page_set_storage_key(address, PAGE_DEFAULT_KEY, 0);
+out:
+ return rc;
}
static int sclp_unassign_storage(u16 rn)
diff --git a/drivers/s390/char/tape.h b/drivers/s390/char/tape.h
index 267b54e..bc6c7cf 100644
--- a/drivers/s390/char/tape.h
+++ b/drivers/s390/char/tape.h
@@ -154,12 +154,6 @@
struct tape_request *(*read_block)(struct tape_device *, size_t);
struct tape_request *(*write_block)(struct tape_device *, size_t);
void (*process_eov)(struct tape_device*);
-#ifdef CONFIG_S390_TAPE_BLOCK
- /* Block device stuff. */
- struct tape_request *(*bread)(struct tape_device *, struct request *);
- void (*check_locate)(struct tape_device *, struct tape_request *);
- void (*free_bread)(struct tape_request *);
-#endif
/* ioctl function for additional ioctls. */
int (*ioctl_fn)(struct tape_device *, unsigned int, unsigned long);
/* Array of tape commands with TAPE_NR_MTOPS entries */
@@ -182,26 +176,6 @@
int block_size; /* of size block_size. */
};
-#ifdef CONFIG_S390_TAPE_BLOCK
-/* Block Frontend Data */
-struct tape_blk_data
-{
- struct tape_device * device;
- /* Block device request queue. */
- struct request_queue * request_queue;
- spinlock_t request_queue_lock;
-
- /* Task to move entries from block request to CCS request queue. */
- struct work_struct requeue_task;
- atomic_t requeue_scheduled;
-
- /* Current position on the tape. */
- long block_position;
- int medium_changed;
- struct gendisk * disk;
-};
-#endif
-
/* Tape Info */
struct tape_device {
/* entry in tape_device_list */
@@ -248,10 +222,6 @@
/* Character device frontend data */
struct tape_char_data char_data;
-#ifdef CONFIG_S390_TAPE_BLOCK
- /* Block dev frontend data */
- struct tape_blk_data blk_data;
-#endif
/* Function to start or stop the next request later. */
struct delayed_work tape_dnr;
@@ -313,19 +283,6 @@
extern int tapechar_setup_device(struct tape_device *);
extern void tapechar_cleanup_device(struct tape_device *);
-/* Externals from tape_block.c */
-#ifdef CONFIG_S390_TAPE_BLOCK
-extern int tapeblock_init (void);
-extern void tapeblock_exit(void);
-extern int tapeblock_setup_device(struct tape_device *);
-extern void tapeblock_cleanup_device(struct tape_device *);
-#else
-static inline int tapeblock_init (void) {return 0;}
-static inline void tapeblock_exit (void) {;}
-static inline int tapeblock_setup_device(struct tape_device *t) {return 0;}
-static inline void tapeblock_cleanup_device (struct tape_device *t) {;}
-#endif
-
/* tape initialisation functions */
#ifdef CONFIG_PROC_FS
extern void tape_proc_init (void);
diff --git a/drivers/s390/char/tape_34xx.c b/drivers/s390/char/tape_34xx.c
index 934ef33..b28de80 100644
--- a/drivers/s390/char/tape_34xx.c
+++ b/drivers/s390/char/tape_34xx.c
@@ -323,20 +323,6 @@
inhibit_cu_recovery = (*device->modeset_byte & 0x80) ? 1 : 0;
sense = irb->ecw;
-#ifdef CONFIG_S390_TAPE_BLOCK
- if (request->op == TO_BLOCK) {
- /*
- * Recovery for block device requests. Set the block_position
- * to something invalid and retry.
- */
- device->blk_data.block_position = -1;
- if (request->retries-- <= 0)
- return tape_34xx_erp_failed(request, -EIO);
- else
- return tape_34xx_erp_retry(request);
- }
-#endif
-
if (
sense[0] & SENSE_COMMAND_REJECT &&
sense[1] & SENSE_WRITE_PROTECT
@@ -1129,123 +1115,6 @@
return tape_do_io_free(device, request);
}
-#ifdef CONFIG_S390_TAPE_BLOCK
-/*
- * Tape block read for 34xx.
- */
-static struct tape_request *
-tape_34xx_bread(struct tape_device *device, struct request *req)
-{
- struct tape_request *request;
- struct ccw1 *ccw;
- int count = 0;
- unsigned off;
- char *dst;
- struct bio_vec *bv;
- struct req_iterator iter;
- struct tape_34xx_block_id * start_block;
-
- DBF_EVENT(6, "xBREDid:");
-
- /* Count the number of blocks for the request. */
- rq_for_each_segment(bv, req, iter)
- count += bv->bv_len >> (TAPEBLOCK_HSEC_S2B + 9);
-
- /* Allocate the ccw request. */
- request = tape_alloc_request(3+count+1, 8);
- if (IS_ERR(request))
- return request;
-
- /* Setup ccws. */
- request->op = TO_BLOCK;
- start_block = (struct tape_34xx_block_id *) request->cpdata;
- start_block->block = blk_rq_pos(req) >> TAPEBLOCK_HSEC_S2B;
- DBF_EVENT(6, "start_block = %i\n", start_block->block);
-
- ccw = request->cpaddr;
- ccw = tape_ccw_cc(ccw, MODE_SET_DB, 1, device->modeset_byte);
-
- /*
- * We always setup a nop after the mode set ccw. This slot is
- * used in tape_std_check_locate to insert a locate ccw if the
- * current tape position doesn't match the start block to be read.
- * The second nop will be filled with a read block id which is in
- * turn used by tape_34xx_free_bread to populate the segment bid
- * table.
- */
- ccw = tape_ccw_cc(ccw, NOP, 0, NULL);
- ccw = tape_ccw_cc(ccw, NOP, 0, NULL);
-
- rq_for_each_segment(bv, req, iter) {
- dst = kmap(bv->bv_page) + bv->bv_offset;
- for (off = 0; off < bv->bv_len; off += TAPEBLOCK_HSEC_SIZE) {
- ccw->flags = CCW_FLAG_CC;
- ccw->cmd_code = READ_FORWARD;
- ccw->count = TAPEBLOCK_HSEC_SIZE;
- set_normalized_cda(ccw, (void*) __pa(dst));
- ccw++;
- dst += TAPEBLOCK_HSEC_SIZE;
- }
- }
-
- ccw = tape_ccw_end(ccw, NOP, 0, NULL);
- DBF_EVENT(6, "xBREDccwg\n");
- return request;
-}
-
-static void
-tape_34xx_free_bread (struct tape_request *request)
-{
- struct ccw1* ccw;
-
- ccw = request->cpaddr;
- if ((ccw + 2)->cmd_code == READ_BLOCK_ID) {
- struct {
- struct tape_34xx_block_id cbid;
- struct tape_34xx_block_id dbid;
- } __attribute__ ((packed)) *rbi_data;
-
- rbi_data = request->cpdata;
-
- if (request->device)
- tape_34xx_add_sbid(request->device, rbi_data->cbid);
- }
-
- /* Last ccw is a nop and doesn't need clear_normalized_cda */
- for (; ccw->flags & CCW_FLAG_CC; ccw++)
- if (ccw->cmd_code == READ_FORWARD)
- clear_normalized_cda(ccw);
- tape_free_request(request);
-}
-
-/*
- * check_locate is called just before the tape request is passed to
- * the common io layer for execution. It has to check the current
- * tape position and insert a locate ccw if it doesn't match the
- * start block for the request.
- */
-static void
-tape_34xx_check_locate(struct tape_device *device, struct tape_request *request)
-{
- struct tape_34xx_block_id * start_block;
-
- start_block = (struct tape_34xx_block_id *) request->cpdata;
- if (start_block->block == device->blk_data.block_position)
- return;
-
- DBF_LH(4, "Block seek(%06d+%06d)\n", start_block->block, device->bof);
- start_block->wrap = 0;
- start_block->segment = 1;
- start_block->format = (*device->modeset_byte & 0x08) ?
- TAPE34XX_FMT_3480_XF :
- TAPE34XX_FMT_3480;
- start_block->block = start_block->block + device->bof;
- tape_34xx_merge_sbid(device, start_block);
- tape_ccw_cc(request->cpaddr + 1, LOCATE, 4, request->cpdata);
- tape_ccw_cc(request->cpaddr + 2, READ_BLOCK_ID, 8, request->cpdata);
-}
-#endif
-
/*
* List of 3480/3490 magnetic tape commands.
*/
@@ -1295,11 +1164,6 @@
.irq = tape_34xx_irq,
.read_block = tape_std_read_block,
.write_block = tape_std_write_block,
-#ifdef CONFIG_S390_TAPE_BLOCK
- .bread = tape_34xx_bread,
- .free_bread = tape_34xx_free_bread,
- .check_locate = tape_34xx_check_locate,
-#endif
.ioctl_fn = tape_34xx_ioctl,
.mtop_array = tape_34xx_mtop
};
diff --git a/drivers/s390/char/tape_3590.c b/drivers/s390/char/tape_3590.c
index 49c6aab..a5c6614 100644
--- a/drivers/s390/char/tape_3590.c
+++ b/drivers/s390/char/tape_3590.c
@@ -670,92 +670,6 @@
return 0;
}
-#ifdef CONFIG_S390_TAPE_BLOCK
-/*
- * Tape Block READ
- */
-static struct tape_request *
-tape_3590_bread(struct tape_device *device, struct request *req)
-{
- struct tape_request *request;
- struct ccw1 *ccw;
- int count = 0, start_block;
- unsigned off;
- char *dst;
- struct bio_vec *bv;
- struct req_iterator iter;
-
- DBF_EVENT(6, "xBREDid:");
- start_block = blk_rq_pos(req) >> TAPEBLOCK_HSEC_S2B;
- DBF_EVENT(6, "start_block = %i\n", start_block);
-
- rq_for_each_segment(bv, req, iter)
- count += bv->bv_len >> (TAPEBLOCK_HSEC_S2B + 9);
-
- request = tape_alloc_request(2 + count + 1, 4);
- if (IS_ERR(request))
- return request;
- request->op = TO_BLOCK;
- *(__u32 *) request->cpdata = start_block;
- ccw = request->cpaddr;
- ccw = tape_ccw_cc(ccw, MODE_SET_DB, 1, device->modeset_byte);
-
- /*
- * We always setup a nop after the mode set ccw. This slot is
- * used in tape_std_check_locate to insert a locate ccw if the
- * current tape position doesn't match the start block to be read.
- */
- ccw = tape_ccw_cc(ccw, NOP, 0, NULL);
-
- rq_for_each_segment(bv, req, iter) {
- dst = page_address(bv->bv_page) + bv->bv_offset;
- for (off = 0; off < bv->bv_len; off += TAPEBLOCK_HSEC_SIZE) {
- ccw->flags = CCW_FLAG_CC;
- ccw->cmd_code = READ_FORWARD;
- ccw->count = TAPEBLOCK_HSEC_SIZE;
- set_normalized_cda(ccw, (void *) __pa(dst));
- ccw++;
- dst += TAPEBLOCK_HSEC_SIZE;
- }
- BUG_ON(off > bv->bv_len);
- }
- ccw = tape_ccw_end(ccw, NOP, 0, NULL);
- DBF_EVENT(6, "xBREDccwg\n");
- return request;
-}
-
-static void
-tape_3590_free_bread(struct tape_request *request)
-{
- struct ccw1 *ccw;
-
- /* Last ccw is a nop and doesn't need clear_normalized_cda */
- for (ccw = request->cpaddr; ccw->flags & CCW_FLAG_CC; ccw++)
- if (ccw->cmd_code == READ_FORWARD)
- clear_normalized_cda(ccw);
- tape_free_request(request);
-}
-
-/*
- * check_locate is called just before the tape request is passed to
- * the common io layer for execution. It has to check the current
- * tape position and insert a locate ccw if it doesn't match the
- * start block for the request.
- */
-static void
-tape_3590_check_locate(struct tape_device *device, struct tape_request *request)
-{
- __u32 *start_block;
-
- start_block = (__u32 *) request->cpdata;
- if (*start_block != device->blk_data.block_position) {
- /* Add the start offset of the file to get the real block. */
- *start_block += device->bof;
- tape_ccw_cc(request->cpaddr + 1, LOCATE, 4, request->cpdata);
- }
-}
-#endif
-
static void tape_3590_med_state_set(struct tape_device *device,
struct tape_3590_med_sense *sense)
{
@@ -1423,20 +1337,6 @@
{
struct tape_3590_sense *sense;
-#ifdef CONFIG_S390_TAPE_BLOCK
- if (request->op == TO_BLOCK) {
- /*
- * Recovery for block device requests. Set the block_position
- * to something invalid and retry.
- */
- device->blk_data.block_position = -1;
- if (request->retries-- <= 0)
- return tape_3590_erp_failed(device, request, irb, -EIO);
- else
- return tape_3590_erp_retry(device, request, irb);
- }
-#endif
-
sense = (struct tape_3590_sense *) irb->ecw;
DBF_EVENT(6, "Unit Check: RQC = %x\n", sense->rc_rqc);
@@ -1729,11 +1629,6 @@
.irq = tape_3590_irq,
.read_block = tape_std_read_block,
.write_block = tape_std_write_block,
-#ifdef CONFIG_S390_TAPE_BLOCK
- .bread = tape_3590_bread,
- .free_bread = tape_3590_free_bread,
- .check_locate = tape_3590_check_locate,
-#endif
.ioctl_fn = tape_3590_ioctl,
.mtop_array = tape_3590_mtop
};
diff --git a/drivers/s390/char/tape_char.c b/drivers/s390/char/tape_char.c
index 87cd0ab..46886a7 100644
--- a/drivers/s390/char/tape_char.c
+++ b/drivers/s390/char/tape_char.c
@@ -161,11 +161,6 @@
if (rc)
return rc;
-#ifdef CONFIG_S390_TAPE_BLOCK
- /* Changes position. */
- device->blk_data.medium_changed = 1;
-#endif
-
DBF_EVENT(6, "TCHAR:nbytes: %lx\n", block_size);
/* Let the discipline build the ccw chain. */
request = device->discipline->read_block(device, block_size);
@@ -218,11 +213,6 @@
if (rc)
return rc;
-#ifdef CONFIG_S390_TAPE_BLOCK
- /* Changes position. */
- device->blk_data.medium_changed = 1;
-#endif
-
DBF_EVENT(6,"TCHAR:nbytes: %lx\n", block_size);
DBF_EVENT(6, "TCHAR:nblocks: %x\n", nblocks);
/* Let the discipline build the ccw chain. */
@@ -379,9 +369,6 @@
case MTBSFM:
case MTFSFM:
case MTSEEK:
-#ifdef CONFIG_S390_TAPE_BLOCK
- device->blk_data.medium_changed = 1;
-#endif
if (device->required_tapemarks)
tape_std_terminate_write(device);
default:
diff --git a/drivers/s390/char/tape_core.c b/drivers/s390/char/tape_core.c
index b3a3e8e..5856186 100644
--- a/drivers/s390/char/tape_core.c
+++ b/drivers/s390/char/tape_core.c
@@ -401,9 +401,6 @@
rc = tapechar_setup_device(device);
if (rc)
goto out_minor;
- rc = tapeblock_setup_device(device);
- if (rc)
- goto out_char;
tape_state_set(device, TS_UNUSED);
@@ -411,8 +408,6 @@
return 0;
-out_char:
- tapechar_cleanup_device(device);
out_minor:
tape_remove_minor(device);
out_discipline:
@@ -426,7 +421,6 @@
static void
tape_cleanup_device(struct tape_device *device)
{
- tapeblock_cleanup_device(device);
tapechar_cleanup_device(device);
device->discipline->cleanup_device(device);
module_put(device->discipline->owner);
@@ -785,10 +779,6 @@
{
int rc;
-#ifdef CONFIG_S390_TAPE_BLOCK
- if (request->op == TO_BLOCK)
- device->discipline->check_locate(device, request);
-#endif
rc = ccw_device_start(
device->cdev,
request->cpaddr,
@@ -1253,7 +1243,7 @@
}
/*
- * Tape device open function used by tape_char & tape_block frontends.
+ * Tape device open function used by tape_char frontend.
*/
int
tape_open(struct tape_device *device)
@@ -1283,7 +1273,7 @@
}
/*
- * Tape device release function used by tape_char & tape_block frontends.
+ * Tape device release function used by tape_char frontend.
*/
int
tape_release(struct tape_device *device)
@@ -1344,7 +1334,6 @@
DBF_EVENT(3, "tape init\n");
tape_proc_init();
tapechar_init ();
- tapeblock_init ();
return 0;
}
@@ -1358,7 +1347,6 @@
/* Get rid of the frontends */
tapechar_exit();
- tapeblock_exit();
tape_proc_cleanup();
debug_unregister (TAPE_DBF_AREA);
}
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index 5f1dc6f..731470e 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -1,7 +1,7 @@
/*
* bus driver for ccwgroup
*
- * Copyright IBM Corp. 2002, 2009
+ * Copyright IBM Corp. 2002, 2012
*
* Author(s): Arnd Bergmann (arndb@de.ibm.com)
* Cornelia Huck (cornelia.huck@de.ibm.com)
@@ -15,10 +15,13 @@
#include <linux/ctype.h>
#include <linux/dcache.h>
+#include <asm/cio.h>
#include <asm/ccwdev.h>
#include <asm/ccwgroup.h>
-#define CCW_BUS_ID_SIZE 20
+#include "device.h"
+
+#define CCW_BUS_ID_SIZE 10
/* In Linux 2.4, we had a channel device layer called "chandev"
* that did all sorts of obscure stuff for networking devices.
@@ -27,19 +30,6 @@
* to devices that use multiple subchannels.
*/
-/* a device matches a driver if all its slave devices match the same
- * entry of the driver */
-static int ccwgroup_bus_match(struct device *dev, struct device_driver * drv)
-{
- struct ccwgroup_device *gdev = to_ccwgroupdev(dev);
- struct ccwgroup_driver *gdrv = to_ccwgroupdrv(drv);
-
- if (gdev->creator_id == gdrv->driver_id)
- return 1;
-
- return 0;
-}
-
static struct bus_type ccwgroup_bus_type;
static void __ccwgroup_remove_symlinks(struct ccwgroup_device *gdev)
@@ -254,9 +244,10 @@
return 0;
}
-static int __get_next_bus_id(const char **buf, char *bus_id)
+static int __get_next_id(const char **buf, struct ccw_dev_id *id)
{
- int rc, len;
+ unsigned int cssid, ssid, devno;
+ int ret = 0, len;
char *start, *end;
start = (char *)*buf;
@@ -271,49 +262,40 @@
len = end - start + 1;
end++;
}
- if (len < CCW_BUS_ID_SIZE) {
- strlcpy(bus_id, start, len);
- rc = 0;
+ if (len <= CCW_BUS_ID_SIZE) {
+ if (sscanf(start, "%2x.%1x.%04x", &cssid, &ssid, &devno) != 3)
+ ret = -EINVAL;
} else
- rc = -EINVAL;
+ ret = -EINVAL;
+
+ if (!ret) {
+ id->ssid = ssid;
+ id->devno = devno;
+ }
*buf = end;
- return rc;
-}
-
-static int __is_valid_bus_id(char bus_id[CCW_BUS_ID_SIZE])
-{
- int cssid, ssid, devno;
-
- /* Must be of form %x.%x.%04x */
- if (sscanf(bus_id, "%x.%1x.%04x", &cssid, &ssid, &devno) != 3)
- return 0;
- return 1;
+ return ret;
}
/**
- * ccwgroup_create_from_string() - create and register a ccw group device
- * @root: parent device for the new device
- * @creator_id: identifier of creating driver
- * @cdrv: ccw driver of slave devices
+ * ccwgroup_create_dev() - create and register a ccw group device
+ * @parent: parent device for the new device
+ * @gdrv: driver for the new group device
* @num_devices: number of slave devices
* @buf: buffer containing comma separated bus ids of slave devices
*
- * Create and register a new ccw group device as a child of @root. Slave
- * devices are obtained from the list of bus ids given in @buf and must all
- * belong to @cdrv.
+ * Create and register a new ccw group device as a child of @parent. Slave
+ * devices are obtained from the list of bus ids given in @buf.
* Returns:
* %0 on success and an error code on failure.
* Context:
* non-atomic
*/
-int ccwgroup_create_from_string(struct device *root, unsigned int creator_id,
- struct ccw_driver *cdrv, int num_devices,
- const char *buf)
+int ccwgroup_create_dev(struct device *parent, struct ccwgroup_driver *gdrv,
+ int num_devices, const char *buf)
{
struct ccwgroup_device *gdev;
+ struct ccw_dev_id dev_id;
int rc, i;
- char tmp_bus_id[CCW_BUS_ID_SIZE];
- const char *curr_buf;
gdev = kzalloc(sizeof(*gdev) + num_devices * sizeof(gdev->cdev[0]),
GFP_KERNEL);
@@ -323,29 +305,24 @@
atomic_set(&gdev->onoff, 0);
mutex_init(&gdev->reg_mutex);
mutex_lock(&gdev->reg_mutex);
- gdev->creator_id = creator_id;
gdev->count = num_devices;
gdev->dev.bus = &ccwgroup_bus_type;
- gdev->dev.parent = root;
+ gdev->dev.parent = parent;
gdev->dev.release = ccwgroup_release;
device_initialize(&gdev->dev);
- curr_buf = buf;
- for (i = 0; i < num_devices && curr_buf; i++) {
- rc = __get_next_bus_id(&curr_buf, tmp_bus_id);
+ for (i = 0; i < num_devices && buf; i++) {
+ rc = __get_next_id(&buf, &dev_id);
if (rc != 0)
goto error;
- if (!__is_valid_bus_id(tmp_bus_id)) {
- rc = -EINVAL;
- goto error;
- }
- gdev->cdev[i] = get_ccwdev_by_busid(cdrv, tmp_bus_id);
+ gdev->cdev[i] = get_ccwdev_by_dev_id(&dev_id);
/*
* All devices have to be of the same type in
* order to be grouped.
*/
- if (!gdev->cdev[i]
- || gdev->cdev[i]->id.driver_info !=
+ if (!gdev->cdev[i] || !gdev->cdev[i]->drv ||
+ gdev->cdev[i]->drv != gdev->cdev[0]->drv ||
+ gdev->cdev[i]->id.driver_info !=
gdev->cdev[0]->id.driver_info) {
rc = -EINVAL;
goto error;
@@ -361,18 +338,25 @@
spin_unlock_irq(gdev->cdev[i]->ccwlock);
}
/* Check for sufficient number of bus ids. */
- if (i < num_devices && !curr_buf) {
+ if (i < num_devices) {
rc = -EINVAL;
goto error;
}
/* Check for trailing stuff. */
- if (i == num_devices && strlen(curr_buf) > 0) {
+ if (i == num_devices && strlen(buf) > 0) {
rc = -EINVAL;
goto error;
}
dev_set_name(&gdev->dev, "%s", dev_name(&gdev->cdev[0]->dev));
gdev->dev.groups = ccwgroup_attr_groups;
+
+ if (gdrv) {
+ gdev->dev.driver = &gdrv->driver;
+ rc = gdrv->setup ? gdrv->setup(gdev) : 0;
+ if (rc)
+ goto error;
+ }
rc = device_add(&gdev->dev);
if (rc)
goto error;
@@ -397,7 +381,7 @@
put_device(&gdev->dev);
return rc;
}
-EXPORT_SYMBOL(ccwgroup_create_from_string);
+EXPORT_SYMBOL(ccwgroup_create_dev);
static int ccwgroup_notifier(struct notifier_block *nb, unsigned long action,
void *data)
@@ -440,14 +424,6 @@
/************************** driver stuff ******************************/
-static int ccwgroup_probe(struct device *dev)
-{
- struct ccwgroup_device *gdev = to_ccwgroupdev(dev);
- struct ccwgroup_driver *gdrv = to_ccwgroupdrv(dev->driver);
-
- return gdrv->probe ? gdrv->probe(gdev) : -ENODEV;
-}
-
static int ccwgroup_remove(struct device *dev)
{
struct ccwgroup_device *gdev = to_ccwgroupdev(dev);
@@ -542,8 +518,6 @@
static struct bus_type ccwgroup_bus_type = {
.name = "ccwgroup",
- .match = ccwgroup_bus_match,
- .probe = ccwgroup_probe,
.remove = ccwgroup_remove,
.shutdown = ccwgroup_shutdown,
.pm = &ccwgroup_pm_ops,
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index a49c46c..a6ddaed 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -656,51 +656,34 @@
static int console_subchannel_in_use;
/*
- * Use cio_tpi to get a pending interrupt and call the interrupt handler.
- * Return non-zero if an interrupt was processed, zero otherwise.
+ * Use cio_tsch to update the subchannel status and call the interrupt handler
+ * if status had been pending. Called with the console_subchannel lock.
*/
-static int cio_tpi(void)
+static void cio_tsch(struct subchannel *sch)
{
- struct tpi_info *tpi_info;
- struct subchannel *sch;
struct irb *irb;
int irq_context;
- tpi_info = (struct tpi_info *)&S390_lowcore.subchannel_id;
- if (tpi(NULL) != 1)
- return 0;
- kstat_cpu(smp_processor_id()).irqs[IO_INTERRUPT]++;
- if (tpi_info->adapter_IO) {
- do_adapter_IO(tpi_info->isc);
- return 1;
- }
irb = (struct irb *)&S390_lowcore.irb;
/* Store interrupt response block to lowcore. */
- if (tsch(tpi_info->schid, irb) != 0) {
+ if (tsch(sch->schid, irb) != 0)
/* Not status pending or not operational. */
- kstat_cpu(smp_processor_id()).irqs[IOINT_CIO]++;
- return 1;
- }
- sch = (struct subchannel *)(unsigned long)tpi_info->intparm;
- if (!sch) {
- kstat_cpu(smp_processor_id()).irqs[IOINT_CIO]++;
- return 1;
- }
- irq_context = in_interrupt();
- if (!irq_context)
- local_bh_disable();
- irq_enter();
- spin_lock(sch->lock);
+ return;
memcpy(&sch->schib.scsw, &irb->scsw, sizeof(union scsw));
+ /* Call interrupt handler with updated status. */
+ irq_context = in_interrupt();
+ if (!irq_context) {
+ local_bh_disable();
+ irq_enter();
+ }
if (sch->driver && sch->driver->irq)
sch->driver->irq(sch);
else
kstat_cpu(smp_processor_id()).irqs[IOINT_CIO]++;
- spin_unlock(sch->lock);
- irq_exit();
- if (!irq_context)
+ if (!irq_context) {
+ irq_exit();
_local_bh_enable();
- return 1;
+ }
}
void *cio_get_console_priv(void)
@@ -712,34 +695,16 @@
* busy wait for the next interrupt on the console
*/
void wait_cons_dev(void)
- __releases(console_subchannel.lock)
- __acquires(console_subchannel.lock)
{
- unsigned long cr6 __attribute__ ((aligned (8)));
- unsigned long save_cr6 __attribute__ ((aligned (8)));
-
- /*
- * before entering the spinlock we may already have
- * processed the interrupt on a different CPU...
- */
if (!console_subchannel_in_use)
return;
- /* disable all but the console isc */
- __ctl_store (save_cr6, 6, 6);
- cr6 = 1UL << (31 - CONSOLE_ISC);
- __ctl_load (cr6, 6, 6);
-
- do {
- spin_unlock(console_subchannel.lock);
- if (!cio_tpi())
- cpu_relax();
- spin_lock(console_subchannel.lock);
- } while (console_subchannel.schib.scsw.cmd.actl != 0);
- /*
- * restore previous isc value
- */
- __ctl_load (save_cr6, 6, 6);
+ while (1) {
+ cio_tsch(&console_subchannel);
+ if (console_subchannel.schib.scsw.cmd.actl == 0)
+ break;
+ udelay_simple(100);
+ }
}
static int
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 02d0152..f8f952d 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -695,7 +695,17 @@
return ccw_dev_id_is_equal(&cdev->private->dev_id, dev_id);
}
-static struct ccw_device *get_ccwdev_by_dev_id(struct ccw_dev_id *dev_id)
+/**
+ * get_ccwdev_by_dev_id() - obtain device from a ccw device id
+ * @dev_id: id of the device to be searched
+ *
+ * This function searches all devices attached to the ccw bus for a device
+ * matching @dev_id.
+ * Returns:
+ * If a device is found its reference count is increased and returned;
+ * else %NULL is returned.
+ */
+struct ccw_device *get_ccwdev_by_dev_id(struct ccw_dev_id *dev_id)
{
struct device *dev;
@@ -703,6 +713,7 @@
return dev ? to_ccwdev(dev) : NULL;
}
+EXPORT_SYMBOL_GPL(get_ccwdev_by_dev_id);
static void ccw_device_do_unbind_bind(struct ccw_device *cdev)
{
diff --git a/drivers/s390/cio/device.h b/drivers/s390/cio/device.h
index 179824b..6bace69 100644
--- a/drivers/s390/cio/device.h
+++ b/drivers/s390/cio/device.h
@@ -101,6 +101,7 @@
void ccw_device_schedule_sch_unregister(struct ccw_device *);
int ccw_purge_blacklisted(void);
void ccw_device_sched_todo(struct ccw_device *cdev, enum cdev_todo todo);
+struct ccw_device *get_ccwdev_by_dev_id(struct ccw_dev_id *dev_id);
/* Function prototypes for device status and basic sense stuff. */
void ccw_device_accumulate_irb(struct ccw_device *, struct irb *);
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 35c685c..7493efa 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -63,7 +63,7 @@
" ipm %0\n"
" srl %0,28\n"
: "=d" (cc)
- : "d" (__fc), "d" (__schid), "d" (__mask) : "cc", "memory");
+ : "d" (__fc), "d" (__schid), "d" (__mask) : "cc");
return cc;
}
@@ -74,7 +74,7 @@
* @bb: busy bit indicator, set only if SIGA-w/wt could not access a buffer
* @fc: function code to perform
*
- * Returns cc or QDIO_ERROR_SIGA_ACCESS_EXCEPTION.
+ * Returns condition code.
* Note: For IQDC unicast queues only the highest priority queue is processed.
*/
static inline int do_siga_output(unsigned long schid, unsigned long mask,
@@ -85,18 +85,16 @@
register unsigned long __schid asm("1") = schid;
register unsigned long __mask asm("2") = mask;
register unsigned long __aob asm("3") = aob;
- int cc = QDIO_ERROR_SIGA_ACCESS_EXCEPTION;
+ int cc;
asm volatile(
" siga 0\n"
- "0: ipm %0\n"
+ " ipm %0\n"
" srl %0,28\n"
- "1:\n"
- EX_TABLE(0b, 1b)
- : "+d" (cc), "+d" (__fc), "+d" (__schid), "+d" (__mask),
- "+d" (__aob)
- : : "cc", "memory");
- *bb = ((unsigned int) __fc) >> 31;
+ : "=d" (cc), "+d" (__fc), "+d" (__aob)
+ : "d" (__schid), "d" (__mask)
+ : "cc");
+ *bb = __fc >> 31;
return cc;
}
@@ -167,7 +165,7 @@
DBF_ERROR("%4x EQBS ERROR", SCH_NO(q));
DBF_ERROR("%3d%3d%2d", count, tmp_count, nr);
- q->handler(q->irq_ptr->cdev, QDIO_ERROR_ACTIVATE_CHECK_CONDITION,
+ q->handler(q->irq_ptr->cdev, QDIO_ERROR_GET_BUF_STATE,
q->nr, q->first_to_kick, count, q->irq_ptr->int_parm);
return 0;
}
@@ -215,7 +213,7 @@
DBF_ERROR("%4x SQBS ERROR", SCH_NO(q));
DBF_ERROR("%3d%3d%2d", count, tmp_count, nr);
- q->handler(q->irq_ptr->cdev, QDIO_ERROR_ACTIVATE_CHECK_CONDITION,
+ q->handler(q->irq_ptr->cdev, QDIO_ERROR_SET_BUF_STATE,
q->nr, q->first_to_kick, count, q->irq_ptr->int_parm);
return 0;
}
@@ -313,7 +311,7 @@
cc = do_siga_sync(schid, output, input, fc);
if (unlikely(cc))
DBF_ERROR("%4x SIGA-S:%2d", SCH_NO(q), cc);
- return cc;
+ return (cc) ? -EIO : 0;
}
static inline int qdio_siga_sync_q(struct qdio_q *q)
@@ -384,7 +382,7 @@
cc = do_siga_input(schid, q->mask, fc);
if (unlikely(cc))
DBF_ERROR("%4x SIGA-R:%2d", SCH_NO(q), cc);
- return cc;
+ return (cc) ? -EIO : 0;
}
#define qdio_siga_sync_out(q) qdio_siga_sync(q, ~0U, 0)
@@ -443,7 +441,7 @@
unsigned char state = (q->is_input_q) ? SLSB_P_INPUT_NOT_INIT :
SLSB_P_OUTPUT_NOT_INIT;
- q->qdio_error |= QDIO_ERROR_SLSB_STATE;
+ q->qdio_error = QDIO_ERROR_SLSB_STATE;
/* special handling for no target buffer empty */
if ((!q->is_input_q &&
@@ -519,7 +517,7 @@
int count, stop;
unsigned char state = 0;
- q->timestamp = get_clock_fast();
+ q->timestamp = get_clock();
/*
* Don't check 128 buffers, as otherwise qdio_inbound_q_moved
@@ -575,7 +573,7 @@
bufnr = get_inbound_buffer_frontier(q);
- if ((bufnr != q->last_move) || q->qdio_error) {
+ if (bufnr != q->last_move) {
q->last_move = bufnr;
if (!is_thinint_irq(q->irq_ptr) && MACHINE_IS_LPAR)
q->u.in.timestamp = get_clock();
@@ -790,7 +788,7 @@
int count, stop;
unsigned char state = 0;
- q->timestamp = get_clock_fast();
+ q->timestamp = get_clock();
if (need_siga_sync(q))
if (((queue_type(q) != QDIO_IQDIO_QFMT) &&
@@ -863,7 +861,7 @@
bufnr = get_outbound_buffer_frontier(q);
- if ((bufnr != q->last_move) || q->qdio_error) {
+ if (bufnr != q->last_move) {
q->last_move = bufnr;
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "out moved:%1d", q->nr);
return 1;
@@ -894,13 +892,16 @@
goto retry;
}
DBF_ERROR("%4x cc2 BBC:%1d", SCH_NO(q), q->nr);
- cc |= QDIO_ERROR_SIGA_BUSY;
- } else
+ cc = -EBUSY;
+ } else {
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "siga-w cc2:%1d", q->nr);
+ cc = -ENOBUFS;
+ }
break;
case 1:
case 3:
DBF_ERROR("%4x SIGA-W:%1d", SCH_NO(q), cc);
+ cc = -EIO;
break;
}
if (retries) {
@@ -1090,7 +1091,7 @@
}
count = sub_buf(q->first_to_check, q->first_to_kick);
- q->handler(q->irq_ptr->cdev, QDIO_ERROR_ACTIVATE_CHECK_CONDITION,
+ q->handler(q->irq_ptr->cdev, QDIO_ERROR_ACTIVATE,
q->nr, q->first_to_kick, count, irq_ptr->int_parm);
no_handler:
qdio_set_state(irq_ptr, QDIO_IRQ_STATE_STOPPED);
@@ -1691,7 +1692,7 @@
"do%02x b:%02x c:%02x", callflags, bufnr, count);
if (irq_ptr->state != QDIO_IRQ_STATE_ACTIVE)
- return -EBUSY;
+ return -EIO;
if (!count)
return 0;
if (callflags & QDIO_FLAG_SYNC_INPUT)
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index 7e9a72e..b987d46 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -215,7 +215,7 @@
register struct ap_queue_status reg1_out asm ("1");
register void *reg2 asm ("2") = ind;
asm volatile(
- ".long 0xb2af0000" /* PQAP(RAPQ) */
+ ".long 0xb2af0000" /* PQAP(AQIC) */
: "+d" (reg0), "+d" (reg1_in), "=d" (reg1_out), "+d" (reg2)
:
: "cc" );
@@ -232,7 +232,7 @@
register unsigned long reg2 asm ("2");
asm volatile(
- ".long 0xb2af0000\n"
+ ".long 0xb2af0000\n" /* PQAP(TAPQ) */
"0:\n"
EX_TABLE(0b, 0b)
: "+d" (reg0), "+d" (reg1), "=d" (reg2)
@@ -391,7 +391,7 @@
reg0 |= 0x400000UL;
asm volatile (
- "0: .long 0xb2ad0042\n" /* DQAP */
+ "0: .long 0xb2ad0042\n" /* NQAP */
" brc 2,0b"
: "+d" (reg0), "=d" (reg1), "+d" (reg2), "+d" (reg3)
: "d" (reg4), "d" (reg5), "m" (*(msgblock *) msg)
@@ -450,7 +450,7 @@
asm volatile(
- "0: .long 0xb2ae0064\n"
+ "0: .long 0xb2ae0064\n" /* DQAP */
" brc 6,0b\n"
: "+d" (reg0), "=d" (reg1), "+d" (reg2),
"+d" (reg4), "+d" (reg5), "+d" (reg6), "+d" (reg7),
@@ -836,12 +836,12 @@
list_for_each_entry_safe(ap_msg, next, &ap_dev->pendingq, list) {
list_del_init(&ap_msg->list);
ap_dev->pendingq_count--;
- ap_dev->drv->receive(ap_dev, ap_msg, ERR_PTR(-ENODEV));
+ ap_msg->receive(ap_dev, ap_msg, ERR_PTR(-ENODEV));
}
list_for_each_entry_safe(ap_msg, next, &ap_dev->requestq, list) {
list_del_init(&ap_msg->list);
ap_dev->requestq_count--;
- ap_dev->drv->receive(ap_dev, ap_msg, ERR_PTR(-ENODEV));
+ ap_msg->receive(ap_dev, ap_msg, ERR_PTR(-ENODEV));
}
}
@@ -1329,7 +1329,7 @@
continue;
list_del_init(&ap_msg->list);
ap_dev->pendingq_count--;
- ap_dev->drv->receive(ap_dev, ap_msg, ap_dev->reply);
+ ap_msg->receive(ap_dev, ap_msg, ap_dev->reply);
break;
}
if (ap_dev->queue_count > 0)
@@ -1450,10 +1450,10 @@
return -EBUSY;
case AP_RESPONSE_REQ_FAC_NOT_INST:
case AP_RESPONSE_MESSAGE_TOO_BIG:
- ap_dev->drv->receive(ap_dev, ap_msg, ERR_PTR(-EINVAL));
+ ap_msg->receive(ap_dev, ap_msg, ERR_PTR(-EINVAL));
return -EINVAL;
default: /* Device is gone. */
- ap_dev->drv->receive(ap_dev, ap_msg, ERR_PTR(-ENODEV));
+ ap_msg->receive(ap_dev, ap_msg, ERR_PTR(-ENODEV));
return -ENODEV;
}
} else {
@@ -1471,6 +1471,10 @@
unsigned long flags;
int rc;
+ /* For asynchronous message handling a valid receive-callback
+ * is required. */
+ BUG_ON(!ap_msg->receive);
+
spin_lock_bh(&ap_dev->lock);
if (!ap_dev->unregistered) {
/* Make room on the queue by polling for finished requests. */
@@ -1482,7 +1486,7 @@
if (rc == -ENODEV)
ap_dev->unregistered = 1;
} else {
- ap_dev->drv->receive(ap_dev, ap_msg, ERR_PTR(-ENODEV));
+ ap_msg->receive(ap_dev, ap_msg, ERR_PTR(-ENODEV));
rc = -ENODEV;
}
spin_unlock_bh(&ap_dev->lock);
diff --git a/drivers/s390/crypto/ap_bus.h b/drivers/s390/crypto/ap_bus.h
index d960a63..726fc65 100644
--- a/drivers/s390/crypto/ap_bus.h
+++ b/drivers/s390/crypto/ap_bus.h
@@ -136,9 +136,6 @@
int (*probe)(struct ap_device *);
void (*remove)(struct ap_device *);
- /* receive is called from tasklet context */
- void (*receive)(struct ap_device *, struct ap_message *,
- struct ap_message *);
int request_timeout; /* request timeout in jiffies */
};
@@ -183,6 +180,9 @@
void *private; /* ap driver private pointer. */
unsigned int special:1; /* Used for special commands. */
+ /* receive is called from tasklet context */
+ void (*receive)(struct ap_device *, struct ap_message *,
+ struct ap_message *);
};
#define AP_DEVICE(dt) \
@@ -199,6 +199,7 @@
ap_msg->psmid = 0;
ap_msg->length = 0;
ap_msg->special = 0;
+ ap_msg->receive = NULL;
}
/*
diff --git a/drivers/s390/crypto/zcrypt_cex2a.c b/drivers/s390/crypto/zcrypt_cex2a.c
index 0842867..4681244 100644
--- a/drivers/s390/crypto/zcrypt_cex2a.c
+++ b/drivers/s390/crypto/zcrypt_cex2a.c
@@ -77,7 +77,6 @@
static struct ap_driver zcrypt_cex2a_driver = {
.probe = zcrypt_cex2a_probe,
.remove = zcrypt_cex2a_remove,
- .receive = zcrypt_cex2a_receive,
.ids = zcrypt_cex2a_ids,
.request_timeout = CEX2A_CLEANUP_TIME,
};
@@ -349,6 +348,7 @@
ap_msg.message = kmalloc(CEX3A_MAX_MESSAGE_SIZE, GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
+ ap_msg.receive = zcrypt_cex2a_receive;
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
atomic_inc_return(&zcrypt_step);
ap_msg.private = &work;
@@ -390,6 +390,7 @@
ap_msg.message = kmalloc(CEX3A_MAX_MESSAGE_SIZE, GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
+ ap_msg.receive = zcrypt_cex2a_receive;
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
atomic_inc_return(&zcrypt_step);
ap_msg.private = &work;
diff --git a/drivers/s390/crypto/zcrypt_pcica.c b/drivers/s390/crypto/zcrypt_pcica.c
index 0effca9..ad7951c 100644
--- a/drivers/s390/crypto/zcrypt_pcica.c
+++ b/drivers/s390/crypto/zcrypt_pcica.c
@@ -67,7 +67,6 @@
static struct ap_driver zcrypt_pcica_driver = {
.probe = zcrypt_pcica_probe,
.remove = zcrypt_pcica_remove,
- .receive = zcrypt_pcica_receive,
.ids = zcrypt_pcica_ids,
.request_timeout = PCICA_CLEANUP_TIME,
};
@@ -284,6 +283,7 @@
ap_msg.message = kmalloc(PCICA_MAX_MESSAGE_SIZE, GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
+ ap_msg.receive = zcrypt_pcica_receive;
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
atomic_inc_return(&zcrypt_step);
ap_msg.private = &work;
@@ -322,6 +322,7 @@
ap_msg.message = kmalloc(PCICA_MAX_MESSAGE_SIZE, GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
+ ap_msg.receive = zcrypt_pcica_receive;
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
atomic_inc_return(&zcrypt_step);
ap_msg.private = &work;
diff --git a/drivers/s390/crypto/zcrypt_pcicc.c b/drivers/s390/crypto/zcrypt_pcicc.c
index f9523c0..e5dd335 100644
--- a/drivers/s390/crypto/zcrypt_pcicc.c
+++ b/drivers/s390/crypto/zcrypt_pcicc.c
@@ -79,7 +79,6 @@
static struct ap_driver zcrypt_pcicc_driver = {
.probe = zcrypt_pcicc_probe,
.remove = zcrypt_pcicc_remove,
- .receive = zcrypt_pcicc_receive,
.ids = zcrypt_pcicc_ids,
.request_timeout = PCICC_CLEANUP_TIME,
};
@@ -488,6 +487,7 @@
ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
+ ap_msg.receive = zcrypt_pcicc_receive;
ap_msg.length = PAGE_SIZE;
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
atomic_inc_return(&zcrypt_step);
@@ -527,6 +527,7 @@
ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
+ ap_msg.receive = zcrypt_pcicc_receive;
ap_msg.length = PAGE_SIZE;
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
atomic_inc_return(&zcrypt_step);
diff --git a/drivers/s390/crypto/zcrypt_pcixcc.c b/drivers/s390/crypto/zcrypt_pcixcc.c
index cf1cbd4..f7cc434 100644
--- a/drivers/s390/crypto/zcrypt_pcixcc.c
+++ b/drivers/s390/crypto/zcrypt_pcixcc.c
@@ -89,7 +89,6 @@
static struct ap_driver zcrypt_pcixcc_driver = {
.probe = zcrypt_pcixcc_probe,
.remove = zcrypt_pcixcc_remove,
- .receive = zcrypt_pcixcc_receive,
.ids = zcrypt_pcixcc_ids,
.request_timeout = PCIXCC_CLEANUP_TIME,
};
@@ -698,6 +697,7 @@
ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
+ ap_msg.receive = zcrypt_pcixcc_receive;
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
atomic_inc_return(&zcrypt_step);
ap_msg.private = &resp_type;
@@ -738,6 +738,7 @@
ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
+ ap_msg.receive = zcrypt_pcixcc_receive;
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
atomic_inc_return(&zcrypt_step);
ap_msg.private = &resp_type;
@@ -778,6 +779,7 @@
ap_msg.message = kmalloc(PCIXCC_MAX_XCRB_MESSAGE_SIZE, GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
+ ap_msg.receive = zcrypt_pcixcc_receive;
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
atomic_inc_return(&zcrypt_step);
ap_msg.private = &resp_type;
@@ -818,6 +820,7 @@
ap_msg.message = kmalloc(PCIXCC_MAX_XCRB_MESSAGE_SIZE, GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
+ ap_msg.receive = zcrypt_pcixcc_receive;
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
atomic_inc_return(&zcrypt_step);
ap_msg.private = &resp_type;
diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c
index b41fae3..6b1ff90 100644
--- a/drivers/s390/net/claw.c
+++ b/drivers/s390/net/claw.c
@@ -136,7 +136,6 @@
claw_set_busy(struct net_device *dev)
{
((struct claw_privbk *)dev->ml_priv)->tbusy = 1;
- eieio();
}
static inline void
@@ -144,13 +143,11 @@
{
clear_bit(0, &(((struct claw_privbk *) dev->ml_priv)->tbusy));
netif_wake_queue(dev);
- eieio();
}
static inline int
claw_check_busy(struct net_device *dev)
{
- eieio();
return ((struct claw_privbk *) dev->ml_priv)->tbusy;
}
@@ -233,8 +230,6 @@
static ssize_t claw_rbuff_write(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count);
-static int claw_add_files(struct device *dev);
-static void claw_remove_files(struct device *dev);
/* Functions for System Validate */
static int claw_process_control( struct net_device *dev, struct ccwbk * p_ccw);
@@ -267,12 +262,10 @@
.owner = THIS_MODULE,
.name = "claw",
},
- .max_slaves = 2,
- .driver_id = 0xC3D3C1E6,
- .probe = claw_probe,
- .remove = claw_remove_device,
- .set_online = claw_new_device,
- .set_offline = claw_shutdown_device,
+ .setup = claw_probe,
+ .remove = claw_remove_device,
+ .set_online = claw_new_device,
+ .set_offline = claw_shutdown_device,
.prepare = claw_pm_prepare,
};
@@ -293,30 +286,24 @@
.int_class = IOINT_CLW,
};
-static ssize_t
-claw_driver_group_store(struct device_driver *ddrv, const char *buf,
- size_t count)
+static ssize_t claw_driver_group_store(struct device_driver *ddrv,
+ const char *buf, size_t count)
{
int err;
- err = ccwgroup_create_from_string(claw_root_dev,
- claw_group_driver.driver_id,
- &claw_ccw_driver, 2, buf);
+ err = ccwgroup_create_dev(claw_root_dev, &claw_group_driver, 2, buf);
return err ? err : count;
}
-
static DRIVER_ATTR(group, 0200, NULL, claw_driver_group_store);
-static struct attribute *claw_group_attrs[] = {
+static struct attribute *claw_drv_attrs[] = {
&driver_attr_group.attr,
NULL,
};
-
-static struct attribute_group claw_group_attr_group = {
- .attrs = claw_group_attrs,
+static struct attribute_group claw_drv_attr_group = {
+ .attrs = claw_drv_attrs,
};
-
-static const struct attribute_group *claw_group_attr_groups[] = {
- &claw_group_attr_group,
+static const struct attribute_group *claw_drv_attr_groups[] = {
+ &claw_drv_attr_group,
NULL,
};
@@ -324,60 +311,6 @@
* Key functions
*/
-/*----------------------------------------------------------------*
- * claw_probe *
- * this function is called for each CLAW device. *
- *----------------------------------------------------------------*/
-static int
-claw_probe(struct ccwgroup_device *cgdev)
-{
- int rc;
- struct claw_privbk *privptr=NULL;
-
- CLAW_DBF_TEXT(2, setup, "probe");
- if (!get_device(&cgdev->dev))
- return -ENODEV;
- privptr = kzalloc(sizeof(struct claw_privbk), GFP_KERNEL);
- dev_set_drvdata(&cgdev->dev, privptr);
- if (privptr == NULL) {
- probe_error(cgdev);
- put_device(&cgdev->dev);
- CLAW_DBF_TEXT_(2, setup, "probex%d", -ENOMEM);
- return -ENOMEM;
- }
- privptr->p_mtc_envelope= kzalloc( MAX_ENVELOPE_SIZE, GFP_KERNEL);
- privptr->p_env = kzalloc(sizeof(struct claw_env), GFP_KERNEL);
- if ((privptr->p_mtc_envelope==NULL) || (privptr->p_env==NULL)) {
- probe_error(cgdev);
- put_device(&cgdev->dev);
- CLAW_DBF_TEXT_(2, setup, "probex%d", -ENOMEM);
- return -ENOMEM;
- }
- memcpy(privptr->p_env->adapter_name,WS_NAME_NOT_DEF,8);
- memcpy(privptr->p_env->host_name,WS_NAME_NOT_DEF,8);
- memcpy(privptr->p_env->api_type,WS_NAME_NOT_DEF,8);
- privptr->p_env->packing = 0;
- privptr->p_env->write_buffers = 5;
- privptr->p_env->read_buffers = 5;
- privptr->p_env->read_size = CLAW_FRAME_SIZE;
- privptr->p_env->write_size = CLAW_FRAME_SIZE;
- rc = claw_add_files(&cgdev->dev);
- if (rc) {
- probe_error(cgdev);
- put_device(&cgdev->dev);
- dev_err(&cgdev->dev, "Creating the /proc files for a new"
- " CLAW device failed\n");
- CLAW_DBF_TEXT_(2, setup, "probex%d", rc);
- return rc;
- }
- privptr->p_env->p_priv = privptr;
- cgdev->cdev[0]->handler = claw_irq_handler;
- cgdev->cdev[1]->handler = claw_irq_handler;
- CLAW_DBF_TEXT(2, setup, "prbext 0");
-
- return 0;
-} /* end of claw_probe */
-
/*-------------------------------------------------------------------*
* claw_tx *
*-------------------------------------------------------------------*/
@@ -3093,7 +3026,6 @@
dev_info(&cgdev->dev, " will be removed.\n");
if (cgdev->state == CCWGROUP_ONLINE)
claw_shutdown_device(cgdev);
- claw_remove_files(&cgdev->dev);
kfree(priv->p_mtc_envelope);
priv->p_mtc_envelope=NULL;
kfree(priv->p_env);
@@ -3321,7 +3253,6 @@
CLAW_DBF_TEXT_(2, setup, "RB=%d", p_env->read_buffers);
return count;
}
-
static DEVICE_ATTR(read_buffer, 0644, claw_rbuff_show, claw_rbuff_write);
static struct attribute *claw_attr[] = {
@@ -3332,40 +3263,73 @@
&dev_attr_host_name.attr,
NULL,
};
-
static struct attribute_group claw_attr_group = {
.attrs = claw_attr,
};
+static const struct attribute_group *claw_attr_groups[] = {
+ &claw_attr_group,
+ NULL,
+};
+static const struct device_type claw_devtype = {
+ .name = "claw",
+ .groups = claw_attr_groups,
+};
-static int
-claw_add_files(struct device *dev)
+/*----------------------------------------------------------------*
+ * claw_probe *
+ * this function is called for each CLAW device. *
+ *----------------------------------------------------------------*/
+static int claw_probe(struct ccwgroup_device *cgdev)
{
- CLAW_DBF_TEXT(2, setup, "add_file");
- return sysfs_create_group(&dev->kobj, &claw_attr_group);
-}
+ struct claw_privbk *privptr = NULL;
-static void
-claw_remove_files(struct device *dev)
-{
- CLAW_DBF_TEXT(2, setup, "rem_file");
- sysfs_remove_group(&dev->kobj, &claw_attr_group);
-}
+ CLAW_DBF_TEXT(2, setup, "probe");
+ if (!get_device(&cgdev->dev))
+ return -ENODEV;
+ privptr = kzalloc(sizeof(struct claw_privbk), GFP_KERNEL);
+ dev_set_drvdata(&cgdev->dev, privptr);
+ if (privptr == NULL) {
+ probe_error(cgdev);
+ put_device(&cgdev->dev);
+ CLAW_DBF_TEXT_(2, setup, "probex%d", -ENOMEM);
+ return -ENOMEM;
+ }
+ privptr->p_mtc_envelope = kzalloc(MAX_ENVELOPE_SIZE, GFP_KERNEL);
+ privptr->p_env = kzalloc(sizeof(struct claw_env), GFP_KERNEL);
+ if ((privptr->p_mtc_envelope == NULL) || (privptr->p_env == NULL)) {
+ probe_error(cgdev);
+ put_device(&cgdev->dev);
+ CLAW_DBF_TEXT_(2, setup, "probex%d", -ENOMEM);
+ return -ENOMEM;
+ }
+ memcpy(privptr->p_env->adapter_name, WS_NAME_NOT_DEF, 8);
+ memcpy(privptr->p_env->host_name, WS_NAME_NOT_DEF, 8);
+ memcpy(privptr->p_env->api_type, WS_NAME_NOT_DEF, 8);
+ privptr->p_env->packing = 0;
+ privptr->p_env->write_buffers = 5;
+ privptr->p_env->read_buffers = 5;
+ privptr->p_env->read_size = CLAW_FRAME_SIZE;
+ privptr->p_env->write_size = CLAW_FRAME_SIZE;
+ privptr->p_env->p_priv = privptr;
+ cgdev->cdev[0]->handler = claw_irq_handler;
+ cgdev->cdev[1]->handler = claw_irq_handler;
+ cgdev->dev.type = &claw_devtype;
+ CLAW_DBF_TEXT(2, setup, "prbext 0");
+
+ return 0;
+} /* end of claw_probe */
/*--------------------------------------------------------------------*
* claw_init and cleanup *
*---------------------------------------------------------------------*/
-static void __exit
-claw_cleanup(void)
+static void __exit claw_cleanup(void)
{
- driver_remove_file(&claw_group_driver.driver,
- &driver_attr_group);
ccwgroup_driver_unregister(&claw_group_driver);
ccw_driver_unregister(&claw_ccw_driver);
root_device_unregister(claw_root_dev);
claw_unregister_debug_facility();
pr_info("Driver unloaded\n");
-
}
/**
@@ -3374,8 +3338,7 @@
*
* @return 0 on success, !0 on error.
*/
-static int __init
-claw_init(void)
+static int __init claw_init(void)
{
int ret = 0;
@@ -3394,7 +3357,7 @@
ret = ccw_driver_register(&claw_ccw_driver);
if (ret)
goto ccw_err;
- claw_group_driver.driver.groups = claw_group_attr_groups;
+ claw_group_driver.driver.groups = claw_drv_attr_groups;
ret = ccwgroup_driver_register(&claw_group_driver);
if (ret)
goto ccwgroup_err;
diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c
index 11f3b07..3cd2554 100644
--- a/drivers/s390/net/ctcm_main.c
+++ b/drivers/s390/net/ctcm_main.c
@@ -1296,6 +1296,11 @@
}
+static const struct device_type ctcm_devtype = {
+ .name = "ctcm",
+ .groups = ctcm_attr_groups,
+};
+
/**
* Add ctcm specific attributes.
* Add ctcm private data.
@@ -1307,7 +1312,6 @@
static int ctcm_probe_device(struct ccwgroup_device *cgdev)
{
struct ctcm_priv *priv;
- int rc;
CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO,
"%s %p",
@@ -1324,17 +1328,11 @@
put_device(&cgdev->dev);
return -ENOMEM;
}
-
- rc = ctcm_add_files(&cgdev->dev);
- if (rc) {
- kfree(priv);
- put_device(&cgdev->dev);
- return rc;
- }
priv->buffer_size = CTCM_BUFSIZE_DEFAULT;
cgdev->cdev[0]->handler = ctcm_irq_handler;
cgdev->cdev[1]->handler = ctcm_irq_handler;
dev_set_drvdata(&cgdev->dev, priv);
+ cgdev->dev.type = &ctcm_devtype;
return 0;
}
@@ -1611,11 +1609,6 @@
goto out_dev;
}
- if (ctcm_add_attributes(&cgdev->dev)) {
- result = -ENODEV;
- goto out_unregister;
- }
-
strlcpy(priv->fsm->name, dev->name, sizeof(priv->fsm->name));
dev_info(&dev->dev,
@@ -1629,8 +1622,6 @@
priv->channel[CTCM_WRITE]->id, priv->protocol);
return 0;
-out_unregister:
- unregister_netdev(dev);
out_dev:
ctcm_free_netdevice(dev);
out_ccw2:
@@ -1669,7 +1660,6 @@
/* Close the device */
ctcm_close(dev);
dev->flags &= ~IFF_RUNNING;
- ctcm_remove_attributes(&cgdev->dev);
channel_free(priv->channel[CTCM_READ]);
} else
dev = NULL;
@@ -1711,7 +1701,6 @@
if (cgdev->state == CCWGROUP_ONLINE)
ctcm_shutdown_device(cgdev);
- ctcm_remove_files(&cgdev->dev);
dev_set_drvdata(&cgdev->dev, NULL);
kfree(priv);
put_device(&cgdev->dev);
@@ -1778,9 +1767,7 @@
.owner = THIS_MODULE,
.name = CTC_DRIVER_NAME,
},
- .max_slaves = 2,
- .driver_id = 0xC3E3C3D4, /* CTCM */
- .probe = ctcm_probe_device,
+ .setup = ctcm_probe_device,
.remove = ctcm_remove_device,
.set_online = ctcm_new_device,
.set_offline = ctcm_shutdown_device,
@@ -1789,31 +1776,25 @@
.restore = ctcm_pm_resume,
};
-static ssize_t
-ctcm_driver_group_store(struct device_driver *ddrv, const char *buf,
- size_t count)
+static ssize_t ctcm_driver_group_store(struct device_driver *ddrv,
+ const char *buf, size_t count)
{
int err;
- err = ccwgroup_create_from_string(ctcm_root_dev,
- ctcm_group_driver.driver_id,
- &ctcm_ccw_driver, 2, buf);
+ err = ccwgroup_create_dev(ctcm_root_dev, &ctcm_group_driver, 2, buf);
return err ? err : count;
}
-
static DRIVER_ATTR(group, 0200, NULL, ctcm_driver_group_store);
-static struct attribute *ctcm_group_attrs[] = {
+static struct attribute *ctcm_drv_attrs[] = {
&driver_attr_group.attr,
NULL,
};
-
-static struct attribute_group ctcm_group_attr_group = {
- .attrs = ctcm_group_attrs,
+static struct attribute_group ctcm_drv_attr_group = {
+ .attrs = ctcm_drv_attrs,
};
-
-static const struct attribute_group *ctcm_group_attr_groups[] = {
- &ctcm_group_attr_group,
+static const struct attribute_group *ctcm_drv_attr_groups[] = {
+ &ctcm_drv_attr_group,
NULL,
};
@@ -1829,7 +1810,6 @@
*/
static void __exit ctcm_exit(void)
{
- driver_remove_file(&ctcm_group_driver.driver, &driver_attr_group);
ccwgroup_driver_unregister(&ctcm_group_driver);
ccw_driver_unregister(&ctcm_ccw_driver);
root_device_unregister(ctcm_root_dev);
@@ -1867,7 +1847,7 @@
ret = ccw_driver_register(&ctcm_ccw_driver);
if (ret)
goto ccw_err;
- ctcm_group_driver.driver.groups = ctcm_group_attr_groups;
+ ctcm_group_driver.driver.groups = ctcm_drv_attr_groups;
ret = ccwgroup_driver_register(&ctcm_group_driver);
if (ret)
goto ccwgroup_err;
diff --git a/drivers/s390/net/ctcm_main.h b/drivers/s390/net/ctcm_main.h
index 24d5215..b9056a5 100644
--- a/drivers/s390/net/ctcm_main.h
+++ b/drivers/s390/net/ctcm_main.h
@@ -225,13 +225,7 @@
int ctcm_open(struct net_device *dev);
int ctcm_close(struct net_device *dev);
-/*
- * prototypes for non-static sysfs functions
- */
-int ctcm_add_attributes(struct device *dev);
-void ctcm_remove_attributes(struct device *dev);
-int ctcm_add_files(struct device *dev);
-void ctcm_remove_files(struct device *dev);
+extern const struct attribute_group *ctcm_attr_groups[];
/*
* Compatibility macros for busy handling
diff --git a/drivers/s390/net/ctcm_sysfs.c b/drivers/s390/net/ctcm_sysfs.c
index 650aec1..0c27ae7 100644
--- a/drivers/s390/net/ctcm_sysfs.c
+++ b/drivers/s390/net/ctcm_sysfs.c
@@ -13,6 +13,7 @@
#define KMSG_COMPONENT "ctcm"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+#include <linux/device.h>
#include <linux/sysfs.h>
#include <linux/slab.h>
#include "ctcm_main.h"
@@ -108,10 +109,12 @@
}
static ssize_t stats_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+ struct device_attribute *attr, char *buf)
{
+ struct ccwgroup_device *gdev = to_ccwgroupdev(dev);
struct ctcm_priv *priv = dev_get_drvdata(dev);
- if (!priv)
+
+ if (!priv || gdev->state != CCWGROUP_ONLINE)
return -ENODEV;
ctcm_print_statistics(priv);
return sprintf(buf, "0\n");
@@ -190,34 +193,14 @@
&dev_attr_protocol.attr,
&dev_attr_type.attr,
&dev_attr_buffer.attr,
+ &dev_attr_stats.attr,
NULL,
};
static struct attribute_group ctcm_attr_group = {
.attrs = ctcm_attr,
};
-
-int ctcm_add_attributes(struct device *dev)
-{
- int rc;
-
- rc = device_create_file(dev, &dev_attr_stats);
-
- return rc;
-}
-
-void ctcm_remove_attributes(struct device *dev)
-{
- device_remove_file(dev, &dev_attr_stats);
-}
-
-int ctcm_add_files(struct device *dev)
-{
- return sysfs_create_group(&dev->kobj, &ctcm_attr_group);
-}
-
-void ctcm_remove_files(struct device *dev)
-{
- sysfs_remove_group(&dev->kobj, &ctcm_attr_group);
-}
-
+const struct attribute_group *ctcm_attr_groups[] = {
+ &ctcm_attr_group,
+ NULL,
+};
diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c
index 6056cf6..a3adf4b 100644
--- a/drivers/s390/net/lcs.c
+++ b/drivers/s390/net/lcs.c
@@ -2040,10 +2040,17 @@
&dev_attr_recover.attr,
NULL,
};
-
static struct attribute_group lcs_attr_group = {
.attrs = lcs_attrs,
};
+static const struct attribute_group *lcs_attr_groups[] = {
+ &lcs_attr_group,
+ NULL,
+};
+static const struct device_type lcs_devtype = {
+ .name = "lcs",
+ .groups = lcs_attr_groups,
+};
/**
* lcs_probe_device is called on establishing a new ccwgroup_device.
@@ -2052,7 +2059,6 @@
lcs_probe_device(struct ccwgroup_device *ccwgdev)
{
struct lcs_card *card;
- int ret;
if (!get_device(&ccwgdev->dev))
return -ENODEV;
@@ -2064,12 +2070,6 @@
put_device(&ccwgdev->dev);
return -ENOMEM;
}
- ret = sysfs_create_group(&ccwgdev->dev.kobj, &lcs_attr_group);
- if (ret) {
- lcs_free_card(card);
- put_device(&ccwgdev->dev);
- return ret;
- }
dev_set_drvdata(&ccwgdev->dev, card);
ccwgdev->cdev[0]->handler = lcs_irq;
ccwgdev->cdev[1]->handler = lcs_irq;
@@ -2078,7 +2078,9 @@
card->thread_start_mask = 0;
card->thread_allowed_mask = 0;
card->thread_running_mask = 0;
- return 0;
+ ccwgdev->dev.type = &lcs_devtype;
+
+ return 0;
}
static int
@@ -2306,9 +2308,9 @@
}
if (card->dev)
unregister_netdev(card->dev);
- sysfs_remove_group(&ccwgdev->dev.kobj, &lcs_attr_group);
lcs_cleanup_card(card);
lcs_free_card(card);
+ dev_set_drvdata(&ccwgdev->dev, NULL);
put_device(&ccwgdev->dev);
}
@@ -2393,9 +2395,7 @@
.owner = THIS_MODULE,
.name = "lcs",
},
- .max_slaves = 2,
- .driver_id = 0xD3C3E2,
- .probe = lcs_probe_device,
+ .setup = lcs_probe_device,
.remove = lcs_remove_device,
.set_online = lcs_new_device,
.set_offline = lcs_shutdown_device,
@@ -2406,30 +2406,24 @@
.restore = lcs_restore,
};
-static ssize_t
-lcs_driver_group_store(struct device_driver *ddrv, const char *buf,
- size_t count)
+static ssize_t lcs_driver_group_store(struct device_driver *ddrv,
+ const char *buf, size_t count)
{
int err;
- err = ccwgroup_create_from_string(lcs_root_dev,
- lcs_group_driver.driver_id,
- &lcs_ccw_driver, 2, buf);
+ err = ccwgroup_create_dev(lcs_root_dev, &lcs_group_driver, 2, buf);
return err ? err : count;
}
-
static DRIVER_ATTR(group, 0200, NULL, lcs_driver_group_store);
-static struct attribute *lcs_group_attrs[] = {
+static struct attribute *lcs_drv_attrs[] = {
&driver_attr_group.attr,
NULL,
};
-
-static struct attribute_group lcs_group_attr_group = {
- .attrs = lcs_group_attrs,
+static struct attribute_group lcs_drv_attr_group = {
+ .attrs = lcs_drv_attrs,
};
-
-static const struct attribute_group *lcs_group_attr_groups[] = {
- &lcs_group_attr_group,
+static const struct attribute_group *lcs_drv_attr_groups[] = {
+ &lcs_drv_attr_group,
NULL,
};
@@ -2453,7 +2447,7 @@
rc = ccw_driver_register(&lcs_ccw_driver);
if (rc)
goto ccw_err;
- lcs_group_driver.driver.groups = lcs_group_attr_groups;
+ lcs_group_driver.driver.groups = lcs_drv_attr_groups;
rc = ccwgroup_driver_register(&lcs_group_driver);
if (rc)
goto ccwgroup_err;
@@ -2479,8 +2473,6 @@
{
pr_info("Terminating lcs module.\n");
LCS_DBF_TEXT(0, trace, "cleanup");
- driver_remove_file(&lcs_group_driver.driver,
- &driver_attr_group);
ccwgroup_driver_unregister(&lcs_group_driver);
ccw_driver_unregister(&lcs_ccw_driver);
root_device_unregister(lcs_root_dev);
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index 40285dc..06e8f31 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -707,7 +707,16 @@
qdio_handler_t *input_handler;
qdio_handler_t *output_handler;
int (*recover)(void *ptr);
- struct ccwgroup_driver *ccwgdriver;
+ int (*setup) (struct ccwgroup_device *);
+ void (*remove) (struct ccwgroup_device *);
+ int (*set_online) (struct ccwgroup_device *);
+ int (*set_offline) (struct ccwgroup_device *);
+ void (*shutdown)(struct ccwgroup_device *);
+ int (*prepare) (struct ccwgroup_device *);
+ void (*complete) (struct ccwgroup_device *);
+ int (*freeze)(struct ccwgroup_device *);
+ int (*thaw) (struct ccwgroup_device *);
+ int (*restore)(struct ccwgroup_device *);
};
struct qeth_vlan_vid {
@@ -771,7 +780,7 @@
struct qeth_perf_stats perf_stats;
int read_or_write_problem;
struct qeth_osn_info osn_info;
- struct qeth_discipline discipline;
+ struct qeth_discipline *discipline;
atomic_t force_alloc_skb;
struct service_level qeth_service_level;
struct qdio_ssqd_desc ssqd;
@@ -837,16 +846,15 @@
return card->info.diagass_support & (__u32)cmd;
}
-extern struct ccwgroup_driver qeth_l2_ccwgroup_driver;
-extern struct ccwgroup_driver qeth_l3_ccwgroup_driver;
+extern struct qeth_discipline qeth_l2_discipline;
+extern struct qeth_discipline qeth_l3_discipline;
+extern const struct attribute_group *qeth_generic_attr_groups[];
+extern const struct attribute_group *qeth_osn_attr_groups[];
+
const char *qeth_get_cardname_short(struct qeth_card *);
int qeth_realloc_buffer_pool(struct qeth_card *, int);
int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
void qeth_core_free_discipline(struct qeth_card *);
-int qeth_core_create_device_attributes(struct device *);
-void qeth_core_remove_device_attributes(struct device *);
-int qeth_core_create_osn_attributes(struct device *);
-void qeth_core_remove_osn_attributes(struct device *);
void qeth_buffer_reclaim_work(struct work_struct *);
/* exports for qeth discipline device drivers */
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index e000001..e118e1e 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -1363,7 +1363,7 @@
card->write.state != CH_STATE_UP)
return;
if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) {
- ts = kthread_run(card->discipline.recover, (void *)card,
+ ts = kthread_run(card->discipline->recover, (void *)card,
"qeth_recover");
if (IS_ERR(ts)) {
qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
@@ -3337,7 +3337,7 @@
if (rc) {
queue->card->stats.tx_errors += count;
/* ignore temporary SIGA errors without busy condition */
- if (rc == QDIO_ERROR_SIGA_TARGET)
+ if (rc == -ENOBUFS)
return;
QETH_CARD_TEXT(queue->card, 2, "flushbuf");
QETH_CARD_TEXT_(queue->card, 2, " q%d", queue->queue_no);
@@ -3531,7 +3531,7 @@
int i;
QETH_CARD_TEXT(card, 6, "qdouhdl");
- if (qdio_error & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) {
+ if (qdio_error & QDIO_ERROR_FATAL) {
QETH_CARD_TEXT(card, 2, "achkcond");
netif_stop_queue(card->dev);
qeth_schedule_recovery(card);
@@ -4627,7 +4627,7 @@
goto out_free_in_sbals;
}
for (i = 0; i < card->qdio.no_in_queues; ++i)
- queue_start_poll[i] = card->discipline.start_poll;
+ queue_start_poll[i] = card->discipline->start_poll;
qeth_qdio_establish_cq(card, in_sbal_ptrs, queue_start_poll);
@@ -4651,8 +4651,8 @@
init_data.qib_param_field = qib_param_field;
init_data.no_input_qs = card->qdio.no_in_queues;
init_data.no_output_qs = card->qdio.no_out_queues;
- init_data.input_handler = card->discipline.input_handler;
- init_data.output_handler = card->discipline.output_handler;
+ init_data.input_handler = card->discipline->input_handler;
+ init_data.output_handler = card->discipline->output_handler;
init_data.queue_start_poll_array = queue_start_poll;
init_data.int_parm = (unsigned long) card;
init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
@@ -4737,13 +4737,6 @@
.remove = ccwgroup_remove_ccwdev,
};
-static int qeth_core_driver_group(const char *buf, struct device *root_dev,
- unsigned long driver_id)
-{
- return ccwgroup_create_from_string(root_dev, driver_id,
- &qeth_ccw_driver, 3, buf);
-}
-
int qeth_core_hardsetup_card(struct qeth_card *card)
{
int retries = 0;
@@ -5040,17 +5033,15 @@
mutex_lock(&qeth_mod_mutex);
switch (discipline) {
case QETH_DISCIPLINE_LAYER3:
- card->discipline.ccwgdriver = try_then_request_module(
- symbol_get(qeth_l3_ccwgroup_driver),
- "qeth_l3");
+ card->discipline = try_then_request_module(
+ symbol_get(qeth_l3_discipline), "qeth_l3");
break;
case QETH_DISCIPLINE_LAYER2:
- card->discipline.ccwgdriver = try_then_request_module(
- symbol_get(qeth_l2_ccwgroup_driver),
- "qeth_l2");
+ card->discipline = try_then_request_module(
+ symbol_get(qeth_l2_discipline), "qeth_l2");
break;
}
- if (!card->discipline.ccwgdriver) {
+ if (!card->discipline) {
dev_err(&card->gdev->dev, "There is no kernel module to "
"support discipline %d\n", discipline);
rc = -EINVAL;
@@ -5062,12 +5053,21 @@
void qeth_core_free_discipline(struct qeth_card *card)
{
if (card->options.layer2)
- symbol_put(qeth_l2_ccwgroup_driver);
+ symbol_put(qeth_l2_discipline);
else
- symbol_put(qeth_l3_ccwgroup_driver);
- card->discipline.ccwgdriver = NULL;
+ symbol_put(qeth_l3_discipline);
+ card->discipline = NULL;
}
+static const struct device_type qeth_generic_devtype = {
+ .name = "qeth_generic",
+ .groups = qeth_generic_attr_groups,
+};
+static const struct device_type qeth_osn_devtype = {
+ .name = "qeth_osn",
+ .groups = qeth_osn_attr_groups,
+};
+
static int qeth_core_probe_device(struct ccwgroup_device *gdev)
{
struct qeth_card *card;
@@ -5122,18 +5122,17 @@
}
if (card->info.type == QETH_CARD_TYPE_OSN)
- rc = qeth_core_create_osn_attributes(dev);
+ gdev->dev.type = &qeth_osn_devtype;
else
- rc = qeth_core_create_device_attributes(dev);
- if (rc)
- goto err_dbf;
+ gdev->dev.type = &qeth_generic_devtype;
+
switch (card->info.type) {
case QETH_CARD_TYPE_OSN:
case QETH_CARD_TYPE_OSM:
rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2);
if (rc)
- goto err_attr;
- rc = card->discipline.ccwgdriver->probe(card->gdev);
+ goto err_dbf;
+ rc = card->discipline->setup(card->gdev);
if (rc)
goto err_disc;
case QETH_CARD_TYPE_OSD:
@@ -5151,11 +5150,6 @@
err_disc:
qeth_core_free_discipline(card);
-err_attr:
- if (card->info.type == QETH_CARD_TYPE_OSN)
- qeth_core_remove_osn_attributes(dev);
- else
- qeth_core_remove_device_attributes(dev);
err_dbf:
debug_unregister(card->debug);
err_card:
@@ -5172,14 +5166,8 @@
QETH_DBF_TEXT(SETUP, 2, "removedv");
- if (card->info.type == QETH_CARD_TYPE_OSN) {
- qeth_core_remove_osn_attributes(&gdev->dev);
- } else {
- qeth_core_remove_device_attributes(&gdev->dev);
- }
-
- if (card->discipline.ccwgdriver) {
- card->discipline.ccwgdriver->remove(gdev);
+ if (card->discipline) {
+ card->discipline->remove(gdev);
qeth_core_free_discipline(card);
}
@@ -5199,7 +5187,7 @@
int rc = 0;
int def_discipline;
- if (!card->discipline.ccwgdriver) {
+ if (!card->discipline) {
if (card->info.type == QETH_CARD_TYPE_IQD)
def_discipline = QETH_DISCIPLINE_LAYER3;
else
@@ -5207,11 +5195,11 @@
rc = qeth_core_load_discipline(card, def_discipline);
if (rc)
goto err;
- rc = card->discipline.ccwgdriver->probe(card->gdev);
+ rc = card->discipline->setup(card->gdev);
if (rc)
goto err;
}
- rc = card->discipline.ccwgdriver->set_online(gdev);
+ rc = card->discipline->set_online(gdev);
err:
return rc;
}
@@ -5219,58 +5207,52 @@
static int qeth_core_set_offline(struct ccwgroup_device *gdev)
{
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
- return card->discipline.ccwgdriver->set_offline(gdev);
+ return card->discipline->set_offline(gdev);
}
static void qeth_core_shutdown(struct ccwgroup_device *gdev)
{
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
- if (card->discipline.ccwgdriver &&
- card->discipline.ccwgdriver->shutdown)
- card->discipline.ccwgdriver->shutdown(gdev);
+ if (card->discipline && card->discipline->shutdown)
+ card->discipline->shutdown(gdev);
}
static int qeth_core_prepare(struct ccwgroup_device *gdev)
{
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
- if (card->discipline.ccwgdriver &&
- card->discipline.ccwgdriver->prepare)
- return card->discipline.ccwgdriver->prepare(gdev);
+ if (card->discipline && card->discipline->prepare)
+ return card->discipline->prepare(gdev);
return 0;
}
static void qeth_core_complete(struct ccwgroup_device *gdev)
{
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
- if (card->discipline.ccwgdriver &&
- card->discipline.ccwgdriver->complete)
- card->discipline.ccwgdriver->complete(gdev);
+ if (card->discipline && card->discipline->complete)
+ card->discipline->complete(gdev);
}
static int qeth_core_freeze(struct ccwgroup_device *gdev)
{
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
- if (card->discipline.ccwgdriver &&
- card->discipline.ccwgdriver->freeze)
- return card->discipline.ccwgdriver->freeze(gdev);
+ if (card->discipline && card->discipline->freeze)
+ return card->discipline->freeze(gdev);
return 0;
}
static int qeth_core_thaw(struct ccwgroup_device *gdev)
{
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
- if (card->discipline.ccwgdriver &&
- card->discipline.ccwgdriver->thaw)
- return card->discipline.ccwgdriver->thaw(gdev);
+ if (card->discipline && card->discipline->thaw)
+ return card->discipline->thaw(gdev);
return 0;
}
static int qeth_core_restore(struct ccwgroup_device *gdev)
{
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
- if (card->discipline.ccwgdriver &&
- card->discipline.ccwgdriver->restore)
- return card->discipline.ccwgdriver->restore(gdev);
+ if (card->discipline && card->discipline->restore)
+ return card->discipline->restore(gdev);
return 0;
}
@@ -5279,8 +5261,7 @@
.owner = THIS_MODULE,
.name = "qeth",
},
- .driver_id = 0xD8C5E3C8,
- .probe = qeth_core_probe_device,
+ .setup = qeth_core_probe_device,
.remove = qeth_core_remove_device,
.set_online = qeth_core_set_online,
.set_offline = qeth_core_set_offline,
@@ -5292,21 +5273,30 @@
.restore = qeth_core_restore,
};
-static ssize_t
-qeth_core_driver_group_store(struct device_driver *ddrv, const char *buf,
- size_t count)
+static ssize_t qeth_core_driver_group_store(struct device_driver *ddrv,
+ const char *buf, size_t count)
{
int err;
- err = qeth_core_driver_group(buf, qeth_core_root_dev,
- qeth_core_ccwgroup_driver.driver_id);
- if (err)
- return err;
- else
- return count;
-}
+ err = ccwgroup_create_dev(qeth_core_root_dev,
+ &qeth_core_ccwgroup_driver, 3, buf);
+
+ return err ? err : count;
+}
static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store);
+static struct attribute *qeth_drv_attrs[] = {
+ &driver_attr_group.attr,
+ NULL,
+};
+static struct attribute_group qeth_drv_attr_group = {
+ .attrs = qeth_drv_attrs,
+};
+static const struct attribute_group *qeth_drv_attr_groups[] = {
+ &qeth_drv_attr_group,
+ NULL,
+};
+
static struct {
const char str[ETH_GSTRING_LEN];
} qeth_ethtool_stats_keys[] = {
@@ -5544,49 +5534,41 @@
rc = qeth_register_dbf_views();
if (rc)
goto out_err;
- rc = ccw_driver_register(&qeth_ccw_driver);
- if (rc)
- goto ccw_err;
- rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver);
- if (rc)
- goto ccwgroup_err;
- rc = driver_create_file(&qeth_core_ccwgroup_driver.driver,
- &driver_attr_group);
- if (rc)
- goto driver_err;
qeth_core_root_dev = root_device_register("qeth");
rc = IS_ERR(qeth_core_root_dev) ? PTR_ERR(qeth_core_root_dev) : 0;
if (rc)
goto register_err;
-
qeth_core_header_cache = kmem_cache_create("qeth_hdr",
sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL);
if (!qeth_core_header_cache) {
rc = -ENOMEM;
goto slab_err;
}
-
qeth_qdio_outbuf_cache = kmem_cache_create("qeth_buf",
sizeof(struct qeth_qdio_out_buffer), 0, 0, NULL);
if (!qeth_qdio_outbuf_cache) {
rc = -ENOMEM;
goto cqslab_err;
}
+ rc = ccw_driver_register(&qeth_ccw_driver);
+ if (rc)
+ goto ccw_err;
+ qeth_core_ccwgroup_driver.driver.groups = qeth_drv_attr_groups;
+ rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver);
+ if (rc)
+ goto ccwgroup_err;
return 0;
+
+ccwgroup_err:
+ ccw_driver_unregister(&qeth_ccw_driver);
+ccw_err:
+ kmem_cache_destroy(qeth_qdio_outbuf_cache);
cqslab_err:
kmem_cache_destroy(qeth_core_header_cache);
slab_err:
root_device_unregister(qeth_core_root_dev);
register_err:
- driver_remove_file(&qeth_core_ccwgroup_driver.driver,
- &driver_attr_group);
-driver_err:
- ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
-ccwgroup_err:
- ccw_driver_unregister(&qeth_ccw_driver);
-ccw_err:
- QETH_DBF_MESSAGE(2, "Initialization failed with code %d\n", rc);
qeth_unregister_dbf_views();
out_err:
pr_err("Initializing the qeth device driver failed\n");
@@ -5595,13 +5577,11 @@
static void __exit qeth_core_exit(void)
{
- root_device_unregister(qeth_core_root_dev);
- driver_remove_file(&qeth_core_ccwgroup_driver.driver,
- &driver_attr_group);
ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
ccw_driver_unregister(&qeth_ccw_driver);
kmem_cache_destroy(qeth_qdio_outbuf_cache);
kmem_cache_destroy(qeth_core_header_cache);
+ root_device_unregister(qeth_core_root_dev);
qeth_unregister_dbf_views();
pr_info("core functions removed\n");
}
diff --git a/drivers/s390/net/qeth_core_sys.c b/drivers/s390/net/qeth_core_sys.c
index 0a8e86c..f163af5 100644
--- a/drivers/s390/net/qeth_core_sys.c
+++ b/drivers/s390/net/qeth_core_sys.c
@@ -434,8 +434,8 @@
goto out;
else {
card->info.mac_bits = 0;
- if (card->discipline.ccwgdriver) {
- card->discipline.ccwgdriver->remove(card->gdev);
+ if (card->discipline) {
+ card->discipline->remove(card->gdev);
qeth_core_free_discipline(card);
}
}
@@ -444,7 +444,7 @@
if (rc)
goto out;
- rc = card->discipline.ccwgdriver->probe(card->gdev);
+ rc = card->discipline->setup(card->gdev);
out:
mutex_unlock(&card->discipline_mutex);
return rc ? rc : count;
@@ -693,7 +693,6 @@
&dev_attr_inter_jumbo.attr,
NULL,
};
-
static struct attribute_group qeth_device_blkt_group = {
.name = "blkt",
.attrs = qeth_blkt_device_attrs,
@@ -716,11 +715,16 @@
&dev_attr_hw_trap.attr,
NULL,
};
-
static struct attribute_group qeth_device_attr_group = {
.attrs = qeth_device_attrs,
};
+const struct attribute_group *qeth_generic_attr_groups[] = {
+ &qeth_device_attr_group,
+ &qeth_device_blkt_group,
+ NULL,
+};
+
static struct attribute *qeth_osn_device_attrs[] = {
&dev_attr_state.attr,
&dev_attr_chpid.attr,
@@ -730,37 +734,10 @@
&dev_attr_recover.attr,
NULL,
};
-
static struct attribute_group qeth_osn_device_attr_group = {
.attrs = qeth_osn_device_attrs,
};
-
-int qeth_core_create_device_attributes(struct device *dev)
-{
- int ret;
- ret = sysfs_create_group(&dev->kobj, &qeth_device_attr_group);
- if (ret)
- return ret;
- ret = sysfs_create_group(&dev->kobj, &qeth_device_blkt_group);
- if (ret)
- sysfs_remove_group(&dev->kobj, &qeth_device_attr_group);
-
- return 0;
-}
-
-void qeth_core_remove_device_attributes(struct device *dev)
-{
- sysfs_remove_group(&dev->kobj, &qeth_device_attr_group);
- sysfs_remove_group(&dev->kobj, &qeth_device_blkt_group);
-}
-
-int qeth_core_create_osn_attributes(struct device *dev)
-{
- return sysfs_create_group(&dev->kobj, &qeth_osn_device_attr_group);
-}
-
-void qeth_core_remove_osn_attributes(struct device *dev)
-{
- sysfs_remove_group(&dev->kobj, &qeth_osn_device_attr_group);
- return;
-}
+const struct attribute_group *qeth_osn_attr_groups[] = {
+ &qeth_osn_device_attr_group,
+ NULL,
+};
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index 0e7c29d..4269865 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -882,12 +882,6 @@
INIT_LIST_HEAD(&card->mc_list);
card->options.layer2 = 1;
card->info.hwtrap = 0;
- card->discipline.start_poll = qeth_qdio_start_poll;
- card->discipline.input_handler = (qdio_handler_t *)
- qeth_qdio_input_handler;
- card->discipline.output_handler = (qdio_handler_t *)
- qeth_qdio_output_handler;
- card->discipline.recover = qeth_l2_recover;
return 0;
}
@@ -1227,8 +1221,12 @@
return rc;
}
-struct ccwgroup_driver qeth_l2_ccwgroup_driver = {
- .probe = qeth_l2_probe_device,
+struct qeth_discipline qeth_l2_discipline = {
+ .start_poll = qeth_qdio_start_poll,
+ .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
+ .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
+ .recover = qeth_l2_recover,
+ .setup = qeth_l2_probe_device,
.remove = qeth_l2_remove_device,
.set_online = qeth_l2_set_online,
.set_offline = qeth_l2_set_offline,
@@ -1237,7 +1235,7 @@
.thaw = qeth_l2_pm_resume,
.restore = qeth_l2_pm_resume,
};
-EXPORT_SYMBOL_GPL(qeth_l2_ccwgroup_driver);
+EXPORT_SYMBOL_GPL(qeth_l2_discipline);
static int qeth_osn_send_control_data(struct qeth_card *card, int len,
struct qeth_cmd_buffer *iob)
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index e7ad032..7be5e97 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -3298,12 +3298,6 @@
qeth_l3_create_device_attributes(&gdev->dev);
card->options.layer2 = 0;
card->info.hwtrap = 0;
- card->discipline.start_poll = qeth_qdio_start_poll;
- card->discipline.input_handler = (qdio_handler_t *)
- qeth_qdio_input_handler;
- card->discipline.output_handler = (qdio_handler_t *)
- qeth_qdio_output_handler;
- card->discipline.recover = qeth_l3_recover;
return 0;
}
@@ -3578,8 +3572,12 @@
return rc;
}
-struct ccwgroup_driver qeth_l3_ccwgroup_driver = {
- .probe = qeth_l3_probe_device,
+struct qeth_discipline qeth_l3_discipline = {
+ .start_poll = qeth_qdio_start_poll,
+ .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
+ .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
+ .recover = qeth_l3_recover,
+ .setup = qeth_l3_probe_device,
.remove = qeth_l3_remove_device,
.set_online = qeth_l3_set_online,
.set_offline = qeth_l3_set_offline,
@@ -3588,7 +3586,7 @@
.thaw = qeth_l3_pm_resume,
.restore = qeth_l3_pm_resume,
};
-EXPORT_SYMBOL_GPL(qeth_l3_ccwgroup_driver);
+EXPORT_SYMBOL_GPL(qeth_l3_discipline);
static int qeth_l3_ip_event(struct notifier_block *this,
unsigned long event, void *ptr)