From 240bfbef67e9ae174190b231e63ee3c0f9f02d8a Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Fri, 15 Dec 2006 17:17:57 +0100 Subject: [S390] update default configuration Signed-off-by: Martin Schwidefsky --- arch/s390/defconfig | 47 ++++++++++++++++++++++++++++++++++------------- 1 file changed, 34 insertions(+), 13 deletions(-) diff --git a/arch/s390/defconfig b/arch/s390/defconfig index a6ec919ba83f..5368cf4a350e 100644 --- a/arch/s390/defconfig +++ b/arch/s390/defconfig @@ -1,14 +1,15 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.19-rc2 -# Wed Oct 18 17:11:10 2006 +# Linux kernel version: 2.6.20-rc1 +# Fri Dec 15 16:52:28 2006 # CONFIG_MMU=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y +# CONFIG_ARCH_HAS_ILOG2_U32 is not set +# CONFIG_ARCH_HAS_ILOG2_U64 is not set CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_TIME=y CONFIG_S390=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" @@ -37,12 +38,13 @@ CONFIG_AUDIT=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y # CONFIG_CPUSETS is not set +CONFIG_SYSFS_DEPRECATED=y # CONFIG_RELAY is not set CONFIG_INITRAMFS_SOURCE="" # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set CONFIG_SYSCTL=y # CONFIG_EMBEDDED is not set -# CONFIG_SYSCTL_SYSCALL is not set +CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set @@ -119,6 +121,7 @@ CONFIG_PACK_STACK=y CONFIG_CHECK_STACK=y CONFIG_STACK_GUARD=256 # CONFIG_WARN_STACK is not set +CONFIG_ARCH_POPULATES_NODE_MAP=y CONFIG_SELECT_MEMORY_MODEL=y CONFIG_FLATMEM_MANUAL=y # CONFIG_DISCONTIGMEM_MANUAL is not set @@ -128,6 +131,7 @@ CONFIG_FLAT_NODE_MEM_MAP=y # CONFIG_SPARSEMEM_STATIC is not set CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_RESOURCES_64BIT=y +CONFIG_HOLES_IN_ZONE=y # # I/O subsystem configuration @@ -196,6 +200,7 @@ CONFIG_INET_TCP_DIAG=y # CONFIG_TCP_CONG_ADVANCED is not set CONFIG_TCP_CONG_CUBIC=y CONFIG_DEFAULT_TCP_CONG="cubic" +# CONFIG_TCP_MD5SIG is not set CONFIG_IPV6=y # CONFIG_IPV6_PRIVACY is not set # CONFIG_IPV6_ROUTER_PREF is not set @@ -211,7 +216,6 @@ CONFIG_INET6_XFRM_MODE_BEET=y # CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set CONFIG_IPV6_SIT=y # CONFIG_IPV6_TUNNEL is not set -# CONFIG_IPV6_SUBTREES is not set # CONFIG_IPV6_MULTIPLE_TABLES is not set # CONFIG_NETWORK_SECMARK is not set # CONFIG_NETFILTER is not set @@ -246,6 +250,7 @@ CONFIG_IPV6_SIT=y # QoS and/or fair queueing # CONFIG_NET_SCHED=y +CONFIG_NET_SCH_FIFO=y CONFIG_NET_SCH_CLK_JIFFIES=y # CONFIG_NET_SCH_CLK_GETTIMEOFDAY is not set # CONFIG_NET_SCH_CLK_CPU is not set @@ -277,6 +282,7 @@ CONFIG_NET_CLS_ROUTE=y CONFIG_NET_CLS_FW=m CONFIG_NET_CLS_U32=m # CONFIG_CLS_U32_PERF is not set +CONFIG_CLS_U32_MARK=y CONFIG_NET_CLS_RSVP=m CONFIG_NET_CLS_RSVP6=m # CONFIG_NET_EMATCH is not set @@ -315,6 +321,7 @@ CONFIG_SYS_HYPERVISOR=y # # CONFIG_RAID_ATTRS is not set CONFIG_SCSI=y +# CONFIG_SCSI_TGT is not set CONFIG_SCSI_NETLINK=y CONFIG_SCSI_PROC_FS=y @@ -335,6 +342,7 @@ CONFIG_CHR_DEV_SG=y CONFIG_SCSI_MULTI_LUN=y CONFIG_SCSI_CONSTANTS=y CONFIG_SCSI_LOGGING=y +CONFIG_SCSI_SCAN_ASYNC=y # # SCSI Transports @@ -546,6 +554,7 @@ CONFIG_DNOTIFY=y # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set # CONFIG_FUSE_FS is not set +CONFIG_GENERIC_ACL=y # # CD-ROM/DVD Filesystems @@ -571,7 +580,7 @@ CONFIG_TMPFS=y CONFIG_TMPFS_POSIX_ACL=y # CONFIG_HUGETLB_PAGE is not set CONFIG_RAMFS=y -# CONFIG_CONFIGFS_FS is not set +CONFIG_CONFIGFS_FS=m # # Miscellaneous filesystems @@ -616,7 +625,6 @@ CONFIG_SUNRPC=y # CONFIG_CODA_FS is not set # CONFIG_AFS_FS is not set # CONFIG_9P_FS is not set -CONFIG_GENERIC_ACL=y # # Partition Types @@ -645,6 +653,14 @@ CONFIG_MSDOS_PARTITION=y # # CONFIG_NLS is not set +# +# Distributed Lock Manager +# +CONFIG_DLM=m +CONFIG_DLM_TCP=y +# CONFIG_DLM_SCTP is not set +# CONFIG_DLM_DEBUG is not set + # # Instrumentation Support # @@ -663,6 +679,8 @@ CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_ENABLE_MUST_CHECK=y CONFIG_MAGIC_SYSRQ=y # CONFIG_UNUSED_SYMBOLS is not set +CONFIG_DEBUG_FS=y +CONFIG_HEADERS_CHECK=y CONFIG_DEBUG_KERNEL=y CONFIG_LOG_BUF_SHIFT=17 # CONFIG_SCHEDSTATS is not set @@ -679,13 +697,11 @@ CONFIG_DEBUG_SPINLOCK_SLEEP=y # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set # CONFIG_DEBUG_INFO is not set -CONFIG_DEBUG_FS=y # CONFIG_DEBUG_VM is not set # CONFIG_DEBUG_LIST is not set # CONFIG_FRAME_POINTER is not set # CONFIG_UNWIND_INFO is not set CONFIG_FORCED_INLINING=y -CONFIG_HEADERS_CHECK=y # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_LKDTM is not set @@ -699,10 +715,11 @@ CONFIG_HEADERS_CHECK=y # Cryptographic options # CONFIG_CRYPTO=y -CONFIG_CRYPTO_ALGAPI=m -CONFIG_CRYPTO_BLKCIPHER=m -CONFIG_CRYPTO_MANAGER=m +CONFIG_CRYPTO_ALGAPI=y +CONFIG_CRYPTO_BLKCIPHER=y +CONFIG_CRYPTO_MANAGER=y # CONFIG_CRYPTO_HMAC is not set +# CONFIG_CRYPTO_XCBC is not set # CONFIG_CRYPTO_NULL is not set # CONFIG_CRYPTO_MD4 is not set # CONFIG_CRYPTO_MD5 is not set @@ -713,8 +730,10 @@ CONFIG_CRYPTO_MANAGER=m # CONFIG_CRYPTO_SHA512 is not set # CONFIG_CRYPTO_WP512 is not set # CONFIG_CRYPTO_TGR192 is not set +# CONFIG_CRYPTO_GF128MUL is not set CONFIG_CRYPTO_ECB=m -CONFIG_CRYPTO_CBC=m +CONFIG_CRYPTO_CBC=y +# CONFIG_CRYPTO_LRW is not set # CONFIG_CRYPTO_DES is not set # CONFIG_CRYPTO_DES_S390 is not set # CONFIG_CRYPTO_BLOWFISH is not set @@ -740,8 +759,10 @@ CONFIG_CRYPTO_CBC=m # # Library routines # +CONFIG_BITREVERSE=m # CONFIG_CRC_CCITT is not set # CONFIG_CRC16 is not set CONFIG_CRC32=m # CONFIG_LIBCRC32C is not set CONFIG_PLIST=y +CONFIG_IOMAP_COPY=y -- cgit v1.2.2 From 86b22470f68528c68cb25dbd58886040e1917494 Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Fri, 15 Dec 2006 17:18:10 +0100 Subject: [S390] hypfs fixes Correct typo to make hypfs work on systems that support only diag204 subcode 4 and fix error handling in hypfs_diag_init. Signed-off-by: Christian Borntraeger Signed-off-by: Martin Schwidefsky --- arch/s390/hypfs/hypfs_diag.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/s390/hypfs/hypfs_diag.c b/arch/s390/hypfs/hypfs_diag.c index 443fa377d9ff..2782cf9da5b4 100644 --- a/arch/s390/hypfs/hypfs_diag.c +++ b/arch/s390/hypfs/hypfs_diag.c @@ -379,7 +379,7 @@ static void *diag204_alloc_vbuf(int pages) static void *diag204_alloc_rbuf(void) { diag204_buf = (void*)__get_free_pages(GFP_KERNEL,0); - if (diag204_buf) + if (!diag204_buf) return ERR_PTR(-ENOMEM); diag204_buf_pages = 1; return diag204_buf; @@ -521,7 +521,7 @@ __init int hypfs_diag_init(void) } rc = diag224_get_name_table(); if (rc) { - diag224_delete_name_table(); + diag204_free_buffer(); printk(KERN_ERR "hypfs: could not get name table.\n"); } return rc; -- cgit v1.2.2 From 028cf917b258b11286437a1b96e64030f94fd46d Mon Sep 17 00:00:00 2001 From: Ursula Braun Date: Fri, 15 Dec 2006 17:18:14 +0100 Subject: [S390] Hipersocket multicast queue: make sure outbound handler is called A HiperSocket multicast queue works asynchronously. When sending buffers, the buffer state change from PRIMED to EMPTY may happen delayed. Reschedule the checking for changes in the outbound queue, if there are still PRIMED buffers. Signed-off-by: Ursula Braun Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/qdio.c | 13 ++++++++----- include/asm-s390/qdio.h | 1 + 2 files changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c index 9d4ea449a608..6fd1940842eb 100644 --- a/drivers/s390/cio/qdio.c +++ b/drivers/s390/cio/qdio.c @@ -979,12 +979,11 @@ __qdio_outbound_processing(struct qdio_q *q) if (q->is_iqdio_q) { /* - * for asynchronous queues, we better check, if the fill - * level is too high. for synchronous queues, the fill - * level will never be that high. + * for asynchronous queues, we better check, if the sent + * buffer is already switched from PRIMED to EMPTY. */ - if (atomic_read(&q->number_of_buffers_used)> - IQDIO_FILL_LEVEL_TO_POLL) + if ((q->queue_type == QDIO_IQDIO_QFMT_ASYNCH) && + !qdio_is_outbound_q_done(q)) qdio_mark_q(q); } else if (!q->hydra_gives_outbound_pcis) @@ -1825,6 +1824,10 @@ qdio_fill_qs(struct qdio_irq *irq_ptr, struct ccw_device *cdev, q->sbal[j]=*(outbound_sbals_array++); q->queue_type=q_format; + if ((q->queue_type == QDIO_IQDIO_QFMT) && + (no_output_qs > 1) && + (i == no_output_qs-1)) + q->queue_type = QDIO_IQDIO_QFMT_ASYNCH; q->int_parm=int_parm; q->is_input_q=0; q->schid = irq_ptr->schid; diff --git a/include/asm-s390/qdio.h b/include/asm-s390/qdio.h index 7189c79bc673..127f72e77419 100644 --- a/include/asm-s390/qdio.h +++ b/include/asm-s390/qdio.h @@ -34,6 +34,7 @@ #define QDIO_QETH_QFMT 0 #define QDIO_ZFCP_QFMT 1 #define QDIO_IQDIO_QFMT 2 +#define QDIO_IQDIO_QFMT_ASYNCH 3 struct qdio_buffer_element{ unsigned int flags; -- cgit v1.2.2 From 13e742babda8cda7df55b8d1ca67d46b4f8dea84 Mon Sep 17 00:00:00 2001 From: Ralph Wuerthner Date: Fri, 15 Dec 2006 17:18:17 +0100 Subject: [S390] zcrypt: module unload fixes. Add code to reset all queues for a domain and add missing tasklet_kill call to ap bus module exit code. Signed-off-by: Ralph Wuerthner Signed-off-by: Martin Schwidefsky --- drivers/s390/crypto/ap_bus.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index ad60afe5dd11..81b5899f4010 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -1129,7 +1129,15 @@ static void ap_poll_thread_stop(void) mutex_unlock(&ap_poll_thread_mutex); } -static void ap_reset(void) +static void ap_reset_domain(void) +{ + int i; + + for (i = 0; i < AP_DEVICES; i++) + ap_reset_queue(AP_MKQID(i, ap_domain_index)); +} + +static void ap_reset_all(void) { int i, j; @@ -1139,7 +1147,7 @@ static void ap_reset(void) } static struct reset_call ap_reset_call = { - .fn = ap_reset, + .fn = ap_reset_all, }; /** @@ -1229,10 +1237,12 @@ void ap_module_exit(void) int i; struct device *dev; + ap_reset_domain(); ap_poll_thread_stop(); del_timer_sync(&ap_config_timer); del_timer_sync(&ap_poll_timer); destroy_workqueue(ap_work_queue); + tasklet_kill(&ap_tasklet); s390_root_dev_unregister(ap_root_device); while ((dev = bus_find_device(&ap_bus_type, NULL, NULL, __ap_match_all))) -- cgit v1.2.2 From b3c14d0bfd1739b930f26df90552a4d8cdcca0a6 Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Fri, 15 Dec 2006 17:18:20 +0100 Subject: [S390] sclp_cpi module license. sclp_cpi is GPL. Make the module not taint the kernel Signed-off-by: Christian Borntraeger Signed-off-by: Martin Schwidefsky --- drivers/s390/char/sclp_cpi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/s390/char/sclp_cpi.c b/drivers/s390/char/sclp_cpi.c index f7c10d954ec6..4f873ae148b7 100644 --- a/drivers/s390/char/sclp_cpi.c +++ b/drivers/s390/char/sclp_cpi.c @@ -49,6 +49,8 @@ static struct sclp_register sclp_cpi_event = .send_mask = EvTyp_CtlProgIdent_Mask }; +MODULE_LICENSE("GPL"); + MODULE_AUTHOR( "Martin Peschke, IBM Deutschland Entwicklung GmbH " ""); -- cgit v1.2.2 From a45e14148fb34175cba042df8979e7982758635f Mon Sep 17 00:00:00 2001 From: Michael Holzheu Date: Fri, 15 Dec 2006 17:18:22 +0100 Subject: [S390] Fix reboot hang on LPARs Reboot hangs on LPARs without diag308 support. The reason for this is, that before the reboot is done, the channel subsystem is shut down. During the reset on each possible subchannel a "store subchannel" is done. This operation can end in a program check interruption, if the specified subchannel set is not implemented by the hardware. During the reset, currently we do not have a program check handler, which leads to the described kernel bug. We install now a new program check handler for the reboot code to fix this problem. Signed-off-by: Michael Holzheu Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/ipl.c | 10 +++++++++- arch/s390/kernel/reset.S | 42 ++++++++++++++++++++++++++++++++++++++++++ drivers/s390/cio/cio.c | 25 +++++++++++++++++++++++-- include/asm-s390/reset.h | 1 + 4 files changed, 75 insertions(+), 3 deletions(-) diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c index a36bea1188d9..d2e6a0a56ade 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -1037,13 +1037,15 @@ static void do_reset_calls(void) } extern void reset_mcck_handler(void); +extern void reset_pgm_handler(void); void s390_reset_system(void) { struct _lowcore *lc; - /* Stack for interrupt/machine check handler */ lc = (struct _lowcore *)(unsigned long) store_prefix(); + + /* Stack for interrupt/machine check handler */ lc->panic_stack = S390_lowcore.panic_stack; /* Disable prefixing */ @@ -1056,5 +1058,11 @@ void s390_reset_system(void) S390_lowcore.mcck_new_psw.mask = PSW_KERNEL_BITS & ~PSW_MASK_MCHECK; S390_lowcore.mcck_new_psw.addr = PSW_ADDR_AMODE | (unsigned long) &reset_mcck_handler; + + /* Set new program check handler */ + S390_lowcore.program_new_psw.mask = PSW_KERNEL_BITS & ~PSW_MASK_MCHECK; + S390_lowcore.program_new_psw.addr = + PSW_ADDR_AMODE | (unsigned long) &reset_pgm_handler; + do_reset_calls(); } diff --git a/arch/s390/kernel/reset.S b/arch/s390/kernel/reset.S index be8688c0665c..8a87355161fa 100644 --- a/arch/s390/kernel/reset.S +++ b/arch/s390/kernel/reset.S @@ -3,6 +3,7 @@ * * Copyright (C) IBM Corp. 2006 * Author(s): Heiko Carstens + * Michael Holzheu */ #include @@ -27,6 +28,26 @@ reset_mcck_handler: s390_reset_mcck_handler: .quad 0 + .globl reset_pgm_handler +reset_pgm_handler: + stmg %r0,%r15,__LC_SAVE_AREA + basr %r13,0 +0: lg %r15,__LC_PANIC_STACK # load panic stack + aghi %r15,-STACK_FRAME_OVERHEAD + lg %r1,s390_reset_pgm_handler-0b(%r13) + ltgr %r1,%r1 + jz 1f + basr %r14,%r1 + lmg %r0,%r15,__LC_SAVE_AREA + lpswe __LC_PGM_OLD_PSW +1: lpswe disabled_wait_psw-0b(%r13) + .globl s390_reset_pgm_handler +s390_reset_pgm_handler: + .quad 0 + .align 8 +disabled_wait_psw: + .quad 0x0002000180000000,0x0000000000000000 + reset_pgm_handler + #else /* CONFIG_64BIT */ .globl reset_mcck_handler @@ -45,4 +66,25 @@ reset_mcck_handler: s390_reset_mcck_handler: .long 0 + .globl reset_pgm_handler +reset_pgm_handler: + stm %r0,%r15,__LC_SAVE_AREA + basr %r13,0 +0: l %r15,__LC_PANIC_STACK # load panic stack + ahi %r15,-STACK_FRAME_OVERHEAD + l %r1,s390_reset_pgm_handler-0b(%r13) + ltr %r1,%r1 + jz 1f + basr %r14,%r1 + lm %r0,%r15,__LC_SAVE_AREA + lpsw __LC_PGM_OLD_PSW + +1: lpsw disabled_wait_psw-0b(%r13) + .globl s390_reset_pgm_handler +s390_reset_pgm_handler: + .long 0 +disabled_wait_psw: + .align 8 + .long 0x000a0000,0x00000000 + reset_pgm_handler + #endif /* CONFIG_64BIT */ diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index 7835a714a405..3a403f195cf8 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -871,11 +871,32 @@ __clear_subchannel_easy(struct subchannel_id schid) return -EBUSY; } +static int pgm_check_occured; + +static void cio_reset_pgm_check_handler(void) +{ + pgm_check_occured = 1; +} + +static int stsch_reset(struct subchannel_id schid, volatile struct schib *addr) +{ + int rc; + + pgm_check_occured = 0; + s390_reset_pgm_handler = cio_reset_pgm_check_handler; + rc = stsch(schid, addr); + s390_reset_pgm_handler = NULL; + if (pgm_check_occured) + return -EIO; + else + return rc; +} + static int __shutdown_subchannel_easy(struct subchannel_id schid, void *data) { struct schib schib; - if (stsch_err(schid, &schib)) + if (stsch_reset(schid, &schib)) return -ENXIO; if (!schib.pmcw.ena) return 0; @@ -972,7 +993,7 @@ static int __reipl_subchannel_match(struct subchannel_id schid, void *data) struct schib schib; struct sch_match_id *match_id = data; - if (stsch_err(schid, &schib)) + if (stsch_reset(schid, &schib)) return -ENXIO; if (schib.pmcw.dnv && (schib.pmcw.dev == match_id->devid.devno) && diff --git a/include/asm-s390/reset.h b/include/asm-s390/reset.h index 9b439cf67800..532e65a2aafc 100644 --- a/include/asm-s390/reset.h +++ b/include/asm-s390/reset.h @@ -19,5 +19,6 @@ extern void register_reset_call(struct reset_call *reset); extern void unregister_reset_call(struct reset_call *reset); extern void s390_reset_system(void); extern void (*s390_reset_mcck_handler)(void); +extern void (*s390_reset_pgm_handler)(void); #endif /* _ASM_S390_RESET_H */ -- cgit v1.2.2 From 58be944127be80bd947dd72d69523b3d4b17781f Mon Sep 17 00:00:00 2001 From: Michael Holzheu Date: Fri, 15 Dec 2006 17:18:25 +0100 Subject: [S390] Fix reboot hang We use printks after shutting down all other cpus. This is not allowed and can lead to deadlocks. Therefore the printks have to be removed. Signed-off-by: Michael Holzheu Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/ipl.c | 45 +-------------------------------------------- 1 file changed, 1 insertion(+), 44 deletions(-) diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c index d2e6a0a56ade..48bfe402052b 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -609,42 +609,12 @@ static ssize_t on_panic_store(struct subsystem *subsys, const char *buf, static struct subsys_attribute on_panic_attr = __ATTR(on_panic, 0644, on_panic_show, on_panic_store); -static void print_fcp_block(struct ipl_parameter_block *fcp_block) -{ - printk(KERN_EMERG "wwpn: %016llx\n", - (unsigned long long)fcp_block->ipl_info.fcp.wwpn); - printk(KERN_EMERG "lun: %016llx\n", - (unsigned long long)fcp_block->ipl_info.fcp.lun); - printk(KERN_EMERG "bootprog: %lld\n", - (unsigned long long)fcp_block->ipl_info.fcp.bootprog); - printk(KERN_EMERG "br_lba: %lld\n", - (unsigned long long)fcp_block->ipl_info.fcp.br_lba); - printk(KERN_EMERG "device: %llx\n", - (unsigned long long)fcp_block->ipl_info.fcp.devno); - printk(KERN_EMERG "opt: %x\n", fcp_block->ipl_info.fcp.opt); -} - void do_reipl(void) { struct ccw_dev_id devid; static char buf[100]; char loadparm[LOADPARM_LEN + 1]; - switch (reipl_type) { - case IPL_TYPE_CCW: - reipl_get_ascii_loadparm(loadparm); - printk(KERN_EMERG "reboot on ccw device: 0.0.%04x\n", - reipl_block_ccw->ipl_info.ccw.devno); - printk(KERN_EMERG "loadparm = '%s'\n", loadparm); - break; - case IPL_TYPE_FCP: - printk(KERN_EMERG "reboot on fcp device:\n"); - print_fcp_block(reipl_block_fcp); - break; - default: - break; - } - switch (reipl_method) { case IPL_METHOD_CCW_CIO: devid.devno = reipl_block_ccw->ipl_info.ccw.devno; @@ -654,6 +624,7 @@ void do_reipl(void) reipl_ccw_dev(&devid); break; case IPL_METHOD_CCW_VM: + reipl_get_ascii_loadparm(loadparm); if (strlen(loadparm) == 0) sprintf(buf, "IPL %X", reipl_block_ccw->ipl_info.ccw.devno); @@ -683,7 +654,6 @@ void do_reipl(void) diag308(DIAG308_IPL, NULL); break; } - printk(KERN_EMERG "reboot failed!\n"); signal_processor(smp_processor_id(), sigp_stop_and_store_status); } @@ -692,19 +662,6 @@ static void do_dump(void) struct ccw_dev_id devid; static char buf[100]; - switch (dump_type) { - case IPL_TYPE_CCW: - printk(KERN_EMERG "Automatic dump on ccw device: 0.0.%04x\n", - dump_block_ccw->ipl_info.ccw.devno); - break; - case IPL_TYPE_FCP: - printk(KERN_EMERG "Automatic dump on fcp device:\n"); - print_fcp_block(dump_block_fcp); - break; - default: - return; - } - switch (dump_method) { case IPL_METHOD_CCW_CIO: smp_send_stop(); -- cgit v1.2.2 From da1cf23efe0c067ef95e4702b386e6e1baab10c7 Mon Sep 17 00:00:00 2001 From: Michael Holzheu Date: Fri, 15 Dec 2006 17:18:27 +0100 Subject: [S390] Save prefix register for dump on panic The dump tools expect that the saved prefix register points to the lowcore of the dump cpu. Since we set the prefix register to 0 during reipl/dump, we have to save the original prefix register. Before we start the dump program, we copy the original prefix register to the designated location in the lowcore. Signed-off-by: Michael Holzheu Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/ipl.c | 4 ++++ arch/s390/kernel/reipl.S | 6 +++++- arch/s390/kernel/reipl64.S | 5 ++++- 3 files changed, 13 insertions(+), 2 deletions(-) diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c index 48bfe402052b..9e9972e8a52b 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -995,6 +995,7 @@ static void do_reset_calls(void) extern void reset_mcck_handler(void); extern void reset_pgm_handler(void); +extern __u32 dump_prefix_page; void s390_reset_system(void) { @@ -1005,6 +1006,9 @@ void s390_reset_system(void) /* Stack for interrupt/machine check handler */ lc->panic_stack = S390_lowcore.panic_stack; + /* Save prefix page address for dump case */ + dump_prefix_page = (unsigned long) lc; + /* Disable prefixing */ set_prefix(0); diff --git a/arch/s390/kernel/reipl.S b/arch/s390/kernel/reipl.S index f9434d42ce9f..c3f4d9b95083 100644 --- a/arch/s390/kernel/reipl.S +++ b/arch/s390/kernel/reipl.S @@ -16,7 +16,7 @@ do_reipl_asm: basr %r13,0 stm %r0,%r15,__LC_GPREGS_SAVE_AREA stctl %c0,%c15,__LC_CREGS_SAVE_AREA stam %a0,%a15,__LC_AREGS_SAVE_AREA - stpx __LC_PREFIX_SAVE_AREA + mvc __LC_PREFIX_SAVE_AREA(4),dump_prefix_page-.Lpg0(%r13) stckc .Lclkcmp-.Lpg0(%r13) mvc __LC_CLOCK_COMP_SAVE_AREA(8),.Lclkcmp-.Lpg0(%r13) stpt __LC_CPU_TIMER_SAVE_AREA @@ -79,3 +79,7 @@ do_reipl_asm: basr %r13,0 .long 0x00000000,0x00000000 .long 0x00000000,0x00000000 .long 0x00000000,0x00000000 + .globl dump_prefix_page +dump_prefix_page: + .long 0x00000000 + diff --git a/arch/s390/kernel/reipl64.S b/arch/s390/kernel/reipl64.S index f18ef260ca23..dbb3eed38865 100644 --- a/arch/s390/kernel/reipl64.S +++ b/arch/s390/kernel/reipl64.S @@ -20,7 +20,7 @@ do_reipl_asm: basr %r13,0 stg %r0,__LC_GPREGS_SAVE_AREA-0x1000+8(%r1) stctg %c0,%c15,__LC_CREGS_SAVE_AREA-0x1000(%r1) stam %a0,%a15,__LC_AREGS_SAVE_AREA-0x1000(%r1) - stpx __LC_PREFIX_SAVE_AREA-0x1000(%r1) + mvc __LC_PREFIX_SAVE_AREA-0x1000(4,%r1),dump_prefix_page-.Lpg0(%r13) stfpc __LC_FP_CREG_SAVE_AREA-0x1000(%r1) stckc .Lclkcmp-.Lpg0(%r13) mvc __LC_CLOCK_COMP_SAVE_AREA-0x1000(8,%r1),.Lclkcmp-.Lpg0(%r13) @@ -103,3 +103,6 @@ do_reipl_asm: basr %r13,0 .long 0x00000000,0x00000000 .long 0x00000000,0x00000000 .long 0x00000000,0x00000000 + .globl dump_prefix_page +dump_prefix_page: + .long 0x00000000 -- cgit v1.2.2 From e42734e270b9e5ada83188d73b733533ce11ee4a Mon Sep 17 00:00:00 2001 From: Stefan Bader Date: Fri, 15 Dec 2006 17:18:30 +0100 Subject: [S390] cio: css_register_subchannel race. Asynchronous probe can release memory of a subchannel before css_get_ssd_info is called. To fix this call css_get_ssd_info before registering with driver core. Signed-off-by: Stefan Bader Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/css.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c index 4c81d890791e..9d6c02446863 100644 --- a/drivers/s390/cio/css.c +++ b/drivers/s390/cio/css.c @@ -139,6 +139,8 @@ css_register_subchannel(struct subchannel *sch) sch->dev.release = &css_subchannel_release; sch->dev.groups = subch_attr_groups; + css_get_ssd_info(sch); + /* make it known to the system */ ret = css_sch_device_register(sch); if (ret) { @@ -146,7 +148,6 @@ css_register_subchannel(struct subchannel *sch) __func__, sch->dev.bus_id); return ret; } - css_get_ssd_info(sch); return ret; } -- cgit v1.2.2