diff options
-rw-r--r-- | arch/s390/boot/compressed/head.S | 11 | ||||
-rw-r--r-- | arch/s390/configs/default_defconfig | 2 | ||||
-rw-r--r-- | arch/s390/configs/gcov_defconfig | 2 | ||||
-rw-r--r-- | arch/s390/configs/performance_defconfig | 2 | ||||
-rw-r--r-- | arch/s390/crypto/crc32-vx.c | 6 | ||||
-rw-r--r-- | arch/s390/defconfig | 2 | ||||
-rw-r--r-- | arch/s390/kernel/head.S | 4 | ||||
-rw-r--r-- | arch/s390/lib/string.c | 16 | ||||
-rw-r--r-- | arch/s390/mm/pageattr.c | 2 | ||||
-rw-r--r-- | drivers/s390/block/dasd.c | 10 | ||||
-rw-r--r-- | drivers/s390/block/dasd_eckd.c | 10 | ||||
-rw-r--r-- | drivers/s390/cio/device.c | 2 | ||||
-rw-r--r-- | drivers/s390/cio/device_status.c | 7 | ||||
-rw-r--r-- | drivers/s390/cio/io_sch.h | 1 | ||||
-rw-r--r-- | drivers/s390/cio/qdio_main.c | 113 |
15 files changed, 107 insertions, 83 deletions
diff --git a/arch/s390/boot/compressed/head.S b/arch/s390/boot/compressed/head.S index f86a4ee..28c4f96 100644 --- a/arch/s390/boot/compressed/head.S +++ b/arch/s390/boot/compressed/head.S @@ -21,16 +21,21 @@ ENTRY(startup_continue) lg %r15,.Lstack-.LPG1(%r13) aghi %r15,-160 brasl %r14,decompress_kernel - # setup registers for memory mover & branch to target + # Set up registers for memory mover. We move the decompressed image to + # 0x11000, starting at offset 0x11000 in the decompressed image so + # that code living at 0x11000 in the image will end up at 0x11000 in + # memory. lgr %r4,%r2 lg %r2,.Loffset-.LPG1(%r13) la %r4,0(%r2,%r4) lg %r3,.Lmvsize-.LPG1(%r13) lgr %r5,%r3 - # move the memory mover someplace safe + # Move the memory mover someplace safe so it doesn't overwrite itself. la %r1,0x200 mvc 0(mover_end-mover,%r1),mover-.LPG1(%r13) - # decompress image is started at 0x11000 + # When the memory mover is done we pass control to + # arch/s390/kernel/head64.S:startup_continue which lives at 0x11000 in + # the decompressed image. lgr %r6,%r2 br %r1 mover: diff --git a/arch/s390/configs/default_defconfig b/arch/s390/configs/default_defconfig index 889ea34..26e0c7f 100644 --- a/arch/s390/configs/default_defconfig +++ b/arch/s390/configs/default_defconfig @@ -678,7 +678,7 @@ CONFIG_CRYPTO_SHA512_S390=m CONFIG_CRYPTO_DES_S390=m CONFIG_CRYPTO_AES_S390=m CONFIG_CRYPTO_GHASH_S390=m -CONFIG_CRYPTO_CRC32_S390=m +CONFIG_CRYPTO_CRC32_S390=y CONFIG_ASYMMETRIC_KEY_TYPE=y CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=m CONFIG_X509_CERTIFICATE_PARSER=m diff --git a/arch/s390/configs/gcov_defconfig b/arch/s390/configs/gcov_defconfig index 1bcfd76..24879da 100644 --- a/arch/s390/configs/gcov_defconfig +++ b/arch/s390/configs/gcov_defconfig @@ -616,7 +616,7 @@ CONFIG_CRYPTO_SHA512_S390=m CONFIG_CRYPTO_DES_S390=m CONFIG_CRYPTO_AES_S390=m CONFIG_CRYPTO_GHASH_S390=m -CONFIG_CRYPTO_CRC32_S390=m +CONFIG_CRYPTO_CRC32_S390=y CONFIG_ASYMMETRIC_KEY_TYPE=y CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=m CONFIG_X509_CERTIFICATE_PARSER=m diff --git a/arch/s390/configs/performance_defconfig b/arch/s390/configs/performance_defconfig index 13ff090..a5c1e5f 100644 --- a/arch/s390/configs/performance_defconfig +++ b/arch/s390/configs/performance_defconfig @@ -615,7 +615,7 @@ CONFIG_CRYPTO_SHA512_S390=m CONFIG_CRYPTO_DES_S390=m CONFIG_CRYPTO_AES_S390=m CONFIG_CRYPTO_GHASH_S390=m -CONFIG_CRYPTO_CRC32_S390=m +CONFIG_CRYPTO_CRC32_S390=y CONFIG_ASYMMETRIC_KEY_TYPE=y CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=m CONFIG_X509_CERTIFICATE_PARSER=m diff --git a/arch/s390/crypto/crc32-vx.c b/arch/s390/crypto/crc32-vx.c index 577ae1d..2bad9d8 100644 --- a/arch/s390/crypto/crc32-vx.c +++ b/arch/s390/crypto/crc32-vx.c @@ -51,6 +51,9 @@ u32 crc32c_le_vgfm_16(u32 crc, unsigned char const *buf, size_t size); struct kernel_fpu vxstate; \ unsigned long prealign, aligned, remaining; \ \ + if (datalen < VX_MIN_LEN + VX_ALIGN_MASK) \ + return ___crc32_sw(crc, data, datalen); \ + \ if ((unsigned long)data & VX_ALIGN_MASK) { \ prealign = VX_ALIGNMENT - \ ((unsigned long)data & VX_ALIGN_MASK); \ @@ -59,9 +62,6 @@ u32 crc32c_le_vgfm_16(u32 crc, unsigned char const *buf, size_t size); data = (void *)((unsigned long)data + prealign); \ } \ \ - if (datalen < VX_MIN_LEN) \ - return ___crc32_sw(crc, data, datalen); \ - \ aligned = datalen & ~VX_ALIGN_MASK; \ remaining = datalen & VX_ALIGN_MASK; \ \ diff --git a/arch/s390/defconfig b/arch/s390/defconfig index ccccebe..73610f2 100644 --- a/arch/s390/defconfig +++ b/arch/s390/defconfig @@ -234,7 +234,7 @@ CONFIG_CRYPTO_SHA256_S390=m CONFIG_CRYPTO_SHA512_S390=m CONFIG_CRYPTO_DES_S390=m CONFIG_CRYPTO_AES_S390=m -CONFIG_CRYPTO_CRC32_S390=m +CONFIG_CRYPTO_CRC32_S390=y CONFIG_CRC7=m # CONFIG_XZ_DEC_X86 is not set # CONFIG_XZ_DEC_POWERPC is not set diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S index 56e4d82..4431905 100644 --- a/arch/s390/kernel/head.S +++ b/arch/s390/kernel/head.S @@ -309,7 +309,9 @@ ENTRY(startup_kdump) l %r15,.Lstack-.LPG0(%r13) ahi %r15,-STACK_FRAME_OVERHEAD brasl %r14,verify_facilities - /* Continue with startup code in head64.S */ +# For uncompressed images, continue in +# arch/s390/kernel/head64.S. For compressed images, continue in +# arch/s390/boot/compressed/head.S. jg startup_continue .Lstack: diff --git a/arch/s390/lib/string.c b/arch/s390/lib/string.c index e390bbb..48352bf 100644 --- a/arch/s390/lib/string.c +++ b/arch/s390/lib/string.c @@ -237,11 +237,10 @@ char * strrchr(const char * s, int c) EXPORT_SYMBOL(strrchr); static inline int clcle(const char *s1, unsigned long l1, - const char *s2, unsigned long l2, - int *diff) + const char *s2, unsigned long l2) { register unsigned long r2 asm("2") = (unsigned long) s1; - register unsigned long r3 asm("3") = (unsigned long) l2; + register unsigned long r3 asm("3") = (unsigned long) l1; register unsigned long r4 asm("4") = (unsigned long) s2; register unsigned long r5 asm("5") = (unsigned long) l2; int cc; @@ -252,7 +251,6 @@ static inline int clcle(const char *s1, unsigned long l1, " srl %0,28" : "=&d" (cc), "+a" (r2), "+a" (r3), "+a" (r4), "+a" (r5) : : "cc"); - *diff = *(char *)r2 - *(char *)r4; return cc; } @@ -270,9 +268,9 @@ char * strstr(const char * s1,const char * s2) return (char *) s1; l1 = __strend(s1) - s1; while (l1-- >= l2) { - int cc, dummy; + int cc; - cc = clcle(s1, l1, s2, l2, &dummy); + cc = clcle(s1, l2, s2, l2); if (!cc) return (char *) s1; s1++; @@ -313,11 +311,11 @@ EXPORT_SYMBOL(memchr); */ int memcmp(const void *cs, const void *ct, size_t n) { - int ret, diff; + int ret; - ret = clcle(cs, n, ct, n, &diff); + ret = clcle(cs, n, ct, n); if (ret) - ret = diff; + ret = ret == 1 ? -1 : 1; return ret; } EXPORT_SYMBOL(memcmp); diff --git a/arch/s390/mm/pageattr.c b/arch/s390/mm/pageattr.c index 7104ffb..af7cf28c 100644 --- a/arch/s390/mm/pageattr.c +++ b/arch/s390/mm/pageattr.c @@ -252,6 +252,8 @@ static int change_page_attr(unsigned long addr, unsigned long end, int rc = -EINVAL; pgd_t *pgdp; + if (addr == end) + return 0; if (end >= MODULES_END) return -EINVAL; mutex_lock(&cpa_mutex); diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 8973d34..fb1b56a 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -1643,9 +1643,18 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, u8 *sense = NULL; int expires; + cqr = (struct dasd_ccw_req *) intparm; if (IS_ERR(irb)) { switch (PTR_ERR(irb)) { case -EIO: + if (cqr && cqr->status == DASD_CQR_CLEAR_PENDING) { + device = (struct dasd_device *) cqr->startdev; + cqr->status = DASD_CQR_CLEARED; + dasd_device_clear_timer(device); + wake_up(&dasd_flush_wq); + dasd_schedule_device_bh(device); + return; + } break; case -ETIMEDOUT: DBF_EVENT_DEVID(DBF_WARNING, cdev, "%s: " @@ -1661,7 +1670,6 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, } now = get_tod_clock(); - cqr = (struct dasd_ccw_req *) intparm; /* check for conditions that should be handled immediately */ if (!cqr || !(scsw_dstat(&irb->scsw) == (DEV_STAT_CHN_END | DEV_STAT_DEV_END) && diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index fd2eff4..98bbec4 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -5078,6 +5078,8 @@ static int dasd_eckd_read_message_buffer(struct dasd_device *device, return PTR_ERR(cqr); } + cqr->lpm = lpum; +retry: cqr->startdev = device; cqr->memdev = device; cqr->block = NULL; @@ -5122,6 +5124,14 @@ static int dasd_eckd_read_message_buffer(struct dasd_device *device, (prssdp + 1); memcpy(messages, message_buf, sizeof(struct dasd_rssd_messages)); + } else if (cqr->lpm) { + /* + * on z/VM we might not be able to do I/O on the requested path + * but instead we get the required information on any path + * so retry with open path mask + */ + cqr->lpm = 0; + goto retry; } else DBF_EVENT_DEVID(DBF_WARNING, device->cdev, "Reading messages failed with rc=%d\n" diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index 7ada078..6a58bc8 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -762,7 +762,6 @@ static int io_subchannel_initialize_dev(struct subchannel *sch, priv->state = DEV_STATE_NOT_OPER; priv->dev_id.devno = sch->schib.pmcw.dev; priv->dev_id.ssid = sch->schid.ssid; - priv->schid = sch->schid; INIT_WORK(&priv->todo_work, ccw_device_todo); INIT_LIST_HEAD(&priv->cmb_list); @@ -1000,7 +999,6 @@ static int ccw_device_move_to_sch(struct ccw_device *cdev, put_device(&old_sch->dev); /* Initialize new subchannel. */ spin_lock_irq(sch->lock); - cdev->private->schid = sch->schid; cdev->ccwlock = sch->lock; if (!sch_is_pseudo_sch(sch)) sch_set_cdev(sch, cdev); diff --git a/drivers/s390/cio/device_status.c b/drivers/s390/cio/device_status.c index 15b56a1..9bc3512 100644 --- a/drivers/s390/cio/device_status.c +++ b/drivers/s390/cio/device_status.c @@ -26,6 +26,7 @@ static void ccw_device_msg_control_check(struct ccw_device *cdev, struct irb *irb) { + struct subchannel *sch = to_subchannel(cdev->dev.parent); char dbf_text[15]; if (!scsw_is_valid_cstat(&irb->scsw) || @@ -36,10 +37,10 @@ ccw_device_msg_control_check(struct ccw_device *cdev, struct irb *irb) "received" " ... device %04x on subchannel 0.%x.%04x, dev_stat " ": %02X sch_stat : %02X\n", - cdev->private->dev_id.devno, cdev->private->schid.ssid, - cdev->private->schid.sch_no, + cdev->private->dev_id.devno, sch->schid.ssid, + sch->schid.sch_no, scsw_dstat(&irb->scsw), scsw_cstat(&irb->scsw)); - sprintf(dbf_text, "chk%x", cdev->private->schid.sch_no); + sprintf(dbf_text, "chk%x", sch->schid.sch_no); CIO_TRACE_EVENT(0, dbf_text); CIO_HEX_EVENT(0, irb, sizeof(struct irb)); } diff --git a/drivers/s390/cio/io_sch.h b/drivers/s390/cio/io_sch.h index 8975060..220f491 100644 --- a/drivers/s390/cio/io_sch.h +++ b/drivers/s390/cio/io_sch.h @@ -120,7 +120,6 @@ struct ccw_device_private { int state; /* device state */ atomic_t onoff; struct ccw_dev_id dev_id; /* device id */ - struct subchannel_id schid; /* subchannel number */ struct ccw_request req; /* internal I/O request */ int iretry; u8 pgid_valid_mask; /* mask of valid PGIDs */ diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c index 4bb5262f..71bf9bd 100644 --- a/drivers/s390/cio/qdio_main.c +++ b/drivers/s390/cio/qdio_main.c @@ -686,6 +686,15 @@ static void qdio_kick_handler(struct qdio_q *q) q->qdio_error = 0; } +static inline int qdio_tasklet_schedule(struct qdio_q *q) +{ + if (likely(q->irq_ptr->state == QDIO_IRQ_STATE_ACTIVE)) { + tasklet_schedule(&q->tasklet); + return 0; + } + return -EPERM; +} + static void __qdio_inbound_processing(struct qdio_q *q) { qperf_inc(q, tasklet_inbound); @@ -698,10 +707,8 @@ static void __qdio_inbound_processing(struct qdio_q *q) if (!qdio_inbound_q_done(q)) { /* means poll time is not yet over */ qperf_inc(q, tasklet_inbound_resched); - if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED)) { - tasklet_schedule(&q->tasklet); + if (!qdio_tasklet_schedule(q)) return; - } } qdio_stop_polling(q); @@ -711,8 +718,7 @@ static void __qdio_inbound_processing(struct qdio_q *q) */ if (!qdio_inbound_q_done(q)) { qperf_inc(q, tasklet_inbound_resched2); - if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED)) - tasklet_schedule(&q->tasklet); + qdio_tasklet_schedule(q); } } @@ -869,16 +875,15 @@ static void __qdio_outbound_processing(struct qdio_q *q) * is noticed and outbound_handler is called after some time. */ if (qdio_outbound_q_done(q)) - del_timer(&q->u.out.timer); + del_timer_sync(&q->u.out.timer); else - if (!timer_pending(&q->u.out.timer)) + if (!timer_pending(&q->u.out.timer) && + likely(q->irq_ptr->state == QDIO_IRQ_STATE_ACTIVE)) mod_timer(&q->u.out.timer, jiffies + 10 * HZ); return; sched: - if (unlikely(q->irq_ptr->state == QDIO_IRQ_STATE_STOPPED)) - return; - tasklet_schedule(&q->tasklet); + qdio_tasklet_schedule(q); } /* outbound tasklet */ @@ -892,9 +897,7 @@ void qdio_outbound_timer(unsigned long data) { struct qdio_q *q = (struct qdio_q *)data; - if (unlikely(q->irq_ptr->state == QDIO_IRQ_STATE_STOPPED)) - return; - tasklet_schedule(&q->tasklet); + qdio_tasklet_schedule(q); } static inline void qdio_check_outbound_after_thinint(struct qdio_q *q) @@ -907,7 +910,7 @@ static inline void qdio_check_outbound_after_thinint(struct qdio_q *q) for_each_output_queue(q->irq_ptr, out, i) if (!qdio_outbound_q_done(out)) - tasklet_schedule(&out->tasklet); + qdio_tasklet_schedule(out); } static void __tiqdio_inbound_processing(struct qdio_q *q) @@ -929,10 +932,8 @@ static void __tiqdio_inbound_processing(struct qdio_q *q) if (!qdio_inbound_q_done(q)) { qperf_inc(q, tasklet_inbound_resched); - if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED)) { - tasklet_schedule(&q->tasklet); + if (!qdio_tasklet_schedule(q)) return; - } } qdio_stop_polling(q); @@ -942,8 +943,7 @@ static void __tiqdio_inbound_processing(struct qdio_q *q) */ if (!qdio_inbound_q_done(q)) { qperf_inc(q, tasklet_inbound_resched2); - if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED)) - tasklet_schedule(&q->tasklet); + qdio_tasklet_schedule(q); } } @@ -977,7 +977,7 @@ static void qdio_int_handler_pci(struct qdio_irq *irq_ptr) int i; struct qdio_q *q; - if (unlikely(irq_ptr->state == QDIO_IRQ_STATE_STOPPED)) + if (unlikely(irq_ptr->state != QDIO_IRQ_STATE_ACTIVE)) return; for_each_input_queue(irq_ptr, q, i) { @@ -1003,7 +1003,7 @@ static void qdio_int_handler_pci(struct qdio_irq *irq_ptr) continue; if (need_siga_sync(q) && need_siga_sync_out_after_pci(q)) qdio_siga_sync_q(q); - tasklet_schedule(&q->tasklet); + qdio_tasklet_schedule(q); } } @@ -1066,10 +1066,12 @@ void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) { struct qdio_irq *irq_ptr = cdev->private->qdio_data; + struct subchannel_id schid; int cstat, dstat; if (!intparm || !irq_ptr) { - DBF_ERROR("qint:%4x", cdev->private->schid.sch_no); + ccw_device_get_schid(cdev, &schid); + DBF_ERROR("qint:%4x", schid.sch_no); return; } @@ -1122,12 +1124,14 @@ void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm, int qdio_get_ssqd_desc(struct ccw_device *cdev, struct qdio_ssqd_desc *data) { + struct subchannel_id schid; if (!cdev || !cdev->private) return -EINVAL; - DBF_EVENT("get ssqd:%4x", cdev->private->schid.sch_no); - return qdio_setup_get_ssqd(NULL, &cdev->private->schid, data); + ccw_device_get_schid(cdev, &schid); + DBF_EVENT("get ssqd:%4x", schid.sch_no); + return qdio_setup_get_ssqd(NULL, &schid, data); } EXPORT_SYMBOL_GPL(qdio_get_ssqd_desc); @@ -1141,7 +1145,7 @@ static void qdio_shutdown_queues(struct ccw_device *cdev) tasklet_kill(&q->tasklet); for_each_output_queue(irq_ptr, q, i) { - del_timer(&q->u.out.timer); + del_timer_sync(&q->u.out.timer); tasklet_kill(&q->tasklet); } } @@ -1154,14 +1158,15 @@ static void qdio_shutdown_queues(struct ccw_device *cdev) int qdio_shutdown(struct ccw_device *cdev, int how) { struct qdio_irq *irq_ptr = cdev->private->qdio_data; + struct subchannel_id schid; int rc; - unsigned long flags; if (!irq_ptr) return -ENODEV; WARN_ON_ONCE(irqs_disabled()); - DBF_EVENT("qshutdown:%4x", cdev->private->schid.sch_no); + ccw_device_get_schid(cdev, &schid); + DBF_EVENT("qshutdown:%4x", schid.sch_no); mutex_lock(&irq_ptr->setup_mutex); /* @@ -1184,7 +1189,7 @@ int qdio_shutdown(struct ccw_device *cdev, int how) qdio_shutdown_debug_entries(irq_ptr); /* cleanup subchannel */ - spin_lock_irqsave(get_ccwdev_lock(cdev), flags); + spin_lock_irq(get_ccwdev_lock(cdev)); if (how & QDIO_FLAG_CLEANUP_USING_CLEAR) rc = ccw_device_clear(cdev, QDIO_DOING_CLEANUP); @@ -1198,12 +1203,12 @@ int qdio_shutdown(struct ccw_device *cdev, int how) } qdio_set_state(irq_ptr, QDIO_IRQ_STATE_CLEANUP); - spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags); + spin_unlock_irq(get_ccwdev_lock(cdev)); wait_event_interruptible_timeout(cdev->private->wait_q, irq_ptr->state == QDIO_IRQ_STATE_INACTIVE || irq_ptr->state == QDIO_IRQ_STATE_ERR, 10 * HZ); - spin_lock_irqsave(get_ccwdev_lock(cdev), flags); + spin_lock_irq(get_ccwdev_lock(cdev)); no_cleanup: qdio_shutdown_thinint(irq_ptr); @@ -1211,7 +1216,7 @@ no_cleanup: /* restore interrupt handler */ if ((void *)cdev->handler == (void *)qdio_int_handler) cdev->handler = irq_ptr->orig_handler; - spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags); + spin_unlock_irq(get_ccwdev_lock(cdev)); qdio_set_state(irq_ptr, QDIO_IRQ_STATE_INACTIVE); mutex_unlock(&irq_ptr->setup_mutex); @@ -1228,11 +1233,13 @@ EXPORT_SYMBOL_GPL(qdio_shutdown); int qdio_free(struct ccw_device *cdev) { struct qdio_irq *irq_ptr = cdev->private->qdio_data; + struct subchannel_id schid; if (!irq_ptr) return -ENODEV; - DBF_EVENT("qfree:%4x", cdev->private->schid.sch_no); + ccw_device_get_schid(cdev, &schid); + DBF_EVENT("qfree:%4x", schid.sch_no); DBF_DEV_EVENT(DBF_ERR, irq_ptr, "dbf abandoned"); mutex_lock(&irq_ptr->setup_mutex); @@ -1251,9 +1258,11 @@ EXPORT_SYMBOL_GPL(qdio_free); */ int qdio_allocate(struct qdio_initialize *init_data) { + struct subchannel_id schid; struct qdio_irq *irq_ptr; - DBF_EVENT("qallocate:%4x", init_data->cdev->private->schid.sch_no); + ccw_device_get_schid(init_data->cdev, &schid); + DBF_EVENT("qallocate:%4x", schid.sch_no); if ((init_data->no_input_qs && !init_data->input_handler) || (init_data->no_output_qs && !init_data->output_handler)) @@ -1331,20 +1340,18 @@ static void qdio_detect_hsicq(struct qdio_irq *irq_ptr) */ int qdio_establish(struct qdio_initialize *init_data) { - struct qdio_irq *irq_ptr; struct ccw_device *cdev = init_data->cdev; - unsigned long saveflags; + struct subchannel_id schid; + struct qdio_irq *irq_ptr; int rc; - DBF_EVENT("qestablish:%4x", cdev->private->schid.sch_no); + ccw_device_get_schid(cdev, &schid); + DBF_EVENT("qestablish:%4x", schid.sch_no); irq_ptr = cdev->private->qdio_data; if (!irq_ptr) return -ENODEV; - if (cdev->private->state != DEV_STATE_ONLINE) - return -EINVAL; - mutex_lock(&irq_ptr->setup_mutex); qdio_setup_irq(init_data); @@ -1361,17 +1368,14 @@ int qdio_establish(struct qdio_initialize *init_data) irq_ptr->ccw.count = irq_ptr->equeue.count; irq_ptr->ccw.cda = (u32)((addr_t)irq_ptr->qdr); - spin_lock_irqsave(get_ccwdev_lock(cdev), saveflags); + spin_lock_irq(get_ccwdev_lock(cdev)); ccw_device_set_options_mask(cdev, 0); rc = ccw_device_start(cdev, &irq_ptr->ccw, QDIO_DOING_ESTABLISH, 0, 0); + spin_unlock_irq(get_ccwdev_lock(cdev)); if (rc) { DBF_ERROR("%4x est IO ERR", irq_ptr->schid.sch_no); DBF_ERROR("rc:%4x", rc); - } - spin_unlock_irqrestore(get_ccwdev_lock(cdev), saveflags); - - if (rc) { mutex_unlock(&irq_ptr->setup_mutex); qdio_shutdown(cdev, QDIO_FLAG_CLEANUP_USING_CLEAR); return rc; @@ -1407,19 +1411,17 @@ EXPORT_SYMBOL_GPL(qdio_establish); */ int qdio_activate(struct ccw_device *cdev) { + struct subchannel_id schid; struct qdio_irq *irq_ptr; int rc; - unsigned long saveflags; - DBF_EVENT("qactivate:%4x", cdev->private->schid.sch_no); + ccw_device_get_schid(cdev, &schid); + DBF_EVENT("qactivate:%4x", schid.sch_no); irq_ptr = cdev->private->qdio_data; if (!irq_ptr) return -ENODEV; - if (cdev->private->state != DEV_STATE_ONLINE) - return -EINVAL; - mutex_lock(&irq_ptr->setup_mutex); if (irq_ptr->state == QDIO_IRQ_STATE_INACTIVE) { rc = -EBUSY; @@ -1431,19 +1433,17 @@ int qdio_activate(struct ccw_device *cdev) irq_ptr->ccw.count = irq_ptr->aqueue.count; irq_ptr->ccw.cda = 0; - spin_lock_irqsave(get_ccwdev_lock(cdev), saveflags); + spin_lock_irq(get_ccwdev_lock(cdev)); ccw_device_set_options(cdev, CCWDEV_REPORT_ALL); rc = ccw_device_start(cdev, &irq_ptr->ccw, QDIO_DOING_ACTIVATE, 0, DOIO_DENY_PREFETCH); + spin_unlock_irq(get_ccwdev_lock(cdev)); if (rc) { DBF_ERROR("%4x act IO ERR", irq_ptr->schid.sch_no); DBF_ERROR("rc:%4x", rc); - } - spin_unlock_irqrestore(get_ccwdev_lock(cdev), saveflags); - - if (rc) goto out; + } if (is_thinint_irq(irq_ptr)) tiqdio_add_input_queues(irq_ptr); @@ -1585,10 +1585,11 @@ static int handle_outbound(struct qdio_q *q, unsigned int callflags, /* in case of SIGA errors we must process the error immediately */ if (used >= q->u.out.scan_threshold || rc) - tasklet_schedule(&q->tasklet); + qdio_tasklet_schedule(q); else /* free the SBALs in case of no further traffic */ - if (!timer_pending(&q->u.out.timer)) + if (!timer_pending(&q->u.out.timer) && + likely(q->irq_ptr->state == QDIO_IRQ_STATE_ACTIVE)) mod_timer(&q->u.out.timer, jiffies + HZ); return rc; } |