diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/s390/char/Kconfig | 12 | ||||
| -rw-r--r-- | drivers/s390/char/raw3270.c | 6 | ||||
| -rw-r--r-- | drivers/s390/char/sclp_vt220.c | 62 | ||||
| -rw-r--r-- | drivers/s390/char/vmur.c | 2 | ||||
| -rw-r--r-- | drivers/s390/cio/blacklist.c | 19 | ||||
| -rw-r--r-- | drivers/s390/cio/ccwgroup.c | 3 | ||||
| -rw-r--r-- | drivers/s390/cio/chp.c | 19 | ||||
| -rw-r--r-- | drivers/s390/cio/chsc.c | 26 | ||||
| -rw-r--r-- | drivers/s390/cio/chsc.h | 2 | ||||
| -rw-r--r-- | drivers/s390/cio/cio.c | 13 | ||||
| -rw-r--r-- | drivers/s390/cio/cio_debug.h | 2 | ||||
| -rw-r--r-- | drivers/s390/cio/cmf.c | 16 | ||||
| -rw-r--r-- | drivers/s390/cio/css.c | 32 | ||||
| -rw-r--r-- | drivers/s390/cio/css.h | 1 | ||||
| -rw-r--r-- | drivers/s390/cio/device.c | 60 | ||||
| -rw-r--r-- | drivers/s390/cio/device_fsm.c | 20 | ||||
| -rw-r--r-- | drivers/s390/cio/device_ops.c | 257 |
17 files changed, 160 insertions, 392 deletions
diff --git a/drivers/s390/char/Kconfig b/drivers/s390/char/Kconfig index 3f36cb3..6430338 100644 --- a/drivers/s390/char/Kconfig +++ b/drivers/s390/char/Kconfig @@ -44,15 +44,9 @@ config CCW_CONSOLE depends on TN3215_CONSOLE || TN3270_CONSOLE default y -config SCLP - bool "Support for SCLP" - depends on S390 - help - Include support for the SCLP interface to the service element. - config SCLP_TTY bool "Support for SCLP line mode terminal" - depends on SCLP + depends on S390 help Include support for IBM SCLP line-mode terminals. @@ -65,7 +59,7 @@ config SCLP_CONSOLE config SCLP_VT220_TTY bool "Support for SCLP VT220-compatible terminal" - depends on SCLP + depends on S390 help Include support for an IBM SCLP VT220-compatible terminal. @@ -78,7 +72,7 @@ config SCLP_VT220_CONSOLE config SCLP_CPI tristate "Control-Program Identification" - depends on SCLP + depends on S390 help This option enables the hardware console interface for system identification. This is commonly used for workload management and diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c index 743944a..4f2f81b 100644 --- a/drivers/s390/char/raw3270.c +++ b/drivers/s390/char/raw3270.c @@ -147,8 +147,7 @@ raw3270_request_alloc(size_t size) * Allocate a new 3270 ccw request from bootmem. Only works very * early in the boot process. Only con3270.c should be using this. */ -struct raw3270_request * -raw3270_request_alloc_bootmem(size_t size) +struct raw3270_request __init *raw3270_request_alloc_bootmem(size_t size) { struct raw3270_request *rq; @@ -848,8 +847,7 @@ raw3270_setup_device(struct ccw_device *cdev, struct raw3270 *rp, char *ascebc) /* * Setup 3270 device configured as console. */ -struct raw3270 * -raw3270_setup_console(struct ccw_device *cdev) +struct raw3270 __init *raw3270_setup_console(struct ccw_device *cdev) { struct raw3270 *rp; char *ascebc; diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c index 7263347..40cd21b 100644 --- a/drivers/s390/char/sclp_vt220.c +++ b/drivers/s390/char/sclp_vt220.c @@ -621,11 +621,24 @@ sclp_vt220_flush_buffer(struct tty_struct *tty) /* * Initialize all relevant components and register driver with system. */ -static int -__sclp_vt220_init(int early) +static void __init __sclp_vt220_cleanup(void) +{ + struct list_head *page, *p; + + list_for_each_safe(page, p, &sclp_vt220_empty) { + list_del(page); + if (slab_is_available()) + free_page((unsigned long) page); + else + free_bootmem((unsigned long) page, PAGE_SIZE); + } +} + +static int __init __sclp_vt220_init(void) { void *page; int i; + int num_pages; if (sclp_vt220_initialized) return 0; @@ -642,13 +655,16 @@ __sclp_vt220_init(int early) sclp_vt220_flush_later = 0; /* Allocate pages for output buffering */ - for (i = 0; i < (early ? MAX_CONSOLE_PAGES : MAX_KMEM_PAGES); i++) { - if (early) - page = alloc_bootmem_low_pages(PAGE_SIZE); - else + num_pages = slab_is_available() ? MAX_KMEM_PAGES : MAX_CONSOLE_PAGES; + for (i = 0; i < num_pages; i++) { + if (slab_is_available()) page = (void *) get_zeroed_page(GFP_KERNEL | GFP_DMA); - if (!page) + else + page = alloc_bootmem_low_pages(PAGE_SIZE); + if (!page) { + __sclp_vt220_cleanup(); return -ENOMEM; + } list_add_tail((struct list_head *) page, &sclp_vt220_empty); } return 0; @@ -662,14 +678,13 @@ static const struct tty_operations sclp_vt220_ops = { .flush_chars = sclp_vt220_flush_chars, .write_room = sclp_vt220_write_room, .chars_in_buffer = sclp_vt220_chars_in_buffer, - .flush_buffer = sclp_vt220_flush_buffer + .flush_buffer = sclp_vt220_flush_buffer, }; /* * Register driver with SCLP and Linux and initialize internal tty structures. */ -static int __init -sclp_vt220_tty_init(void) +static int __init sclp_vt220_tty_init(void) { struct tty_driver *driver; int rc; @@ -679,18 +694,15 @@ sclp_vt220_tty_init(void) driver = alloc_tty_driver(1); if (!driver) return -ENOMEM; - rc = __sclp_vt220_init(0); - if (rc) { - put_tty_driver(driver); - return rc; - } + rc = __sclp_vt220_init(); + if (rc) + goto out_driver; rc = sclp_register(&sclp_vt220_register); if (rc) { printk(KERN_ERR SCLP_VT220_PRINT_HEADER "could not register tty - " "sclp_register returned %d\n", rc); - put_tty_driver(driver); - return rc; + goto out_init; } driver->owner = THIS_MODULE; @@ -709,14 +721,20 @@ sclp_vt220_tty_init(void) printk(KERN_ERR SCLP_VT220_PRINT_HEADER "could not register tty - " "tty_register_driver returned %d\n", rc); - put_tty_driver(driver); - return rc; + goto out_sclp; } sclp_vt220_driver = driver; return 0; -} -module_init(sclp_vt220_tty_init); +out_sclp: + sclp_unregister(&sclp_vt220_register); +out_init: + __sclp_vt220_cleanup(); +out_driver: + put_tty_driver(driver); + return rc; +} +__initcall(sclp_vt220_tty_init); #ifdef CONFIG_SCLP_VT220_CONSOLE @@ -762,7 +780,7 @@ sclp_vt220_con_init(void) if (!CONSOLE_IS_SCLP) return 0; - rc = __sclp_vt220_init(1); + rc = __sclp_vt220_init(); if (rc) return rc; /* Attach linux console */ diff --git a/drivers/s390/char/vmur.c b/drivers/s390/char/vmur.c index e90b0f8..161867c 100644 --- a/drivers/s390/char/vmur.c +++ b/drivers/s390/char/vmur.c @@ -486,7 +486,7 @@ static ssize_t diag14_read(struct file *file, char __user *ubuf, size_t count, } if (rc) goto fail; - if (reclen) + if (reclen && (copied == 0) && (*offs < PAGE_SIZE)) *((u16 *) &buf[FILE_RECLEN_OFFSET]) = reclen; len = min(count - copied, PAGE_SIZE - res); if (copy_to_user(ubuf + copied, buf + res, len)) { diff --git a/drivers/s390/cio/blacklist.c b/drivers/s390/cio/blacklist.c index ec04048..bd5f16f 100644 --- a/drivers/s390/cio/blacklist.c +++ b/drivers/s390/cio/blacklist.c @@ -51,7 +51,7 @@ blacklist_range (range_action action, unsigned int from, unsigned int to, to = from; if (from > to || to > __MAX_SUBCHANNEL || ssid > __MAX_SSID) { - printk (KERN_WARNING "Invalid blacklist range " + printk (KERN_WARNING "cio: Invalid blacklist range " "0.%x.%04x to 0.%x.%04x, skipping\n", ssid, from, ssid, to); return; @@ -119,7 +119,7 @@ blacklist_busid(char **str, int *id0, int *ssid, int *devno) return 0; confused: strsep(str, ",\n"); - printk(KERN_WARNING "Invalid cio_ignore parameter '%s'\n", sav); + printk(KERN_WARNING "cio: Invalid cio_ignore parameter '%s'\n", sav); return 1; } @@ -166,22 +166,19 @@ blacklist_parse_parameters (char *str, range_action action) continue; } if (*str == '-') { - printk(KERN_WARNING "invalid cio_ignore " + printk(KERN_WARNING "cio: invalid cio_ignore " "parameter '%s'\n", strsep(&str, ",\n")); continue; } if ((from_id0 != to_id0) || (from_ssid != to_ssid)) { - printk(KERN_WARNING "invalid cio_ignore range " - "%x.%x.%04x-%x.%x.%04x\n", - from_id0, from_ssid, from, - to_id0, to_ssid, to); + printk(KERN_WARNING "cio: invalid cio_ignore " + "range %x.%x.%04x-%x.%x.%04x\n", + from_id0, from_ssid, from, + to_id0, to_ssid, to); continue; } - pr_debug("blacklist_setup: adding range " - "from %x.%x.%04x to %x.%x.%04x\n", - from_id0, from_ssid, from, to_id0, to_ssid, to); blacklist_range (ra, from, to, to_ssid); } } @@ -239,7 +236,7 @@ blacklist_parse_proc_parameters (char *buf) */ blacklist_parse_parameters (buf + 4, add); } else { - printk (KERN_WARNING "cio_ignore: Parse error; \n" + printk (KERN_WARNING "cio: cio_ignore: Parse error; \n" KERN_WARNING "try using 'free all|<devno-range>," "<devno-range>,...'\n" KERN_WARNING "or 'add <devno-range>," diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c index e5ccda6..b0a18f5 100644 --- a/drivers/s390/cio/ccwgroup.c +++ b/drivers/s390/cio/ccwgroup.c @@ -359,7 +359,6 @@ ccwgroup_probe (struct device *dev) if ((ret = device_create_file(dev, &dev_attr_online))) return ret; - pr_debug("%s: device %s\n", __func__, gdev->dev.bus_id); ret = gdrv->probe ? gdrv->probe(gdev) : -ENODEV; if (ret) device_remove_file(dev, &dev_attr_online); @@ -376,8 +375,6 @@ ccwgroup_remove (struct device *dev) gdev = to_ccwgroupdev(dev); gdrv = to_ccwgroupdrv(dev->driver); - pr_debug("%s: device %s\n", __func__, gdev->dev.bus_id); - device_remove_file(dev, &dev_attr_online); if (gdrv && gdrv->remove) diff --git a/drivers/s390/cio/chp.c b/drivers/s390/cio/chp.c index b57d93d..920dd71 100644 --- a/drivers/s390/cio/chp.c +++ b/drivers/s390/cio/chp.c @@ -121,14 +121,8 @@ static int s390_vary_chpid(struct chp_id chpid, int on) CIO_TRACE_EVENT( 2, dbf_text); status = chp_get_status(chpid); - if (status < 0) { - printk(KERN_ERR "Can't vary unknown chpid %x.%02x\n", - chpid.cssid, chpid.id); - return -EINVAL; - } - if (!on && !status) { - printk(KERN_ERR "chpid %x.%02x is already offline\n", + printk(KERN_ERR "cio: chpid %x.%02x is already offline\n", chpid.cssid, chpid.id); return -EINVAL; } @@ -421,21 +415,14 @@ int chp_new(struct chp_id chpid) if (ret) goto out_free; } else { - static int msg_done; - - if (!msg_done) { - printk(KERN_WARNING "cio: Channel measurements not " - "available, continuing.\n"); - msg_done = 1; - } chp->cmg = -1; } /* make it known to the system */ ret = device_register(&chp->dev); if (ret) { - printk(KERN_WARNING "%s: could not register %x.%02x\n", - __func__, chpid.cssid, chpid.id); + CIO_MSG_EVENT(0, "Could not register chp%x.%02x: %d\n", + chpid.cssid, chpid.id, ret); goto out_free; } ret = sysfs_create_group(&chp->dev.kobj, &chp_attr_group); diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index ea92ac4..597c0c7 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -990,16 +990,20 @@ out: return ret; } -static int __init -chsc_alloc_sei_area(void) +int __init chsc_alloc_sei_area(void) { sei_page = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA); if (!sei_page) - printk(KERN_WARNING"Can't allocate page for processing of " \ - "chsc machine checks!\n"); + CIO_MSG_EVENT(0, "Can't allocate page for processing of " + "chsc machine checks!\n"); return (sei_page ? 0 : -ENOMEM); } +void __init chsc_free_sei_area(void) +{ + kfree(sei_page); +} + int __init chsc_enable_facility(int operation_code) { @@ -1051,8 +1055,6 @@ chsc_enable_facility(int operation_code) return ret; } -subsys_initcall(chsc_alloc_sei_area); - struct css_general_char css_general_characteristics; struct css_chsc_char css_chsc_characteristics; @@ -1073,8 +1075,8 @@ chsc_determine_css_characteristics(void) scsc_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA); if (!scsc_area) { - printk(KERN_WARNING"cio: Was not able to determine available" \ - "CHSCs due to no memory.\n"); + CIO_MSG_EVENT(0, "Was not able to determine available" + "CHSCs due to no memory.\n"); return -ENOMEM; } @@ -1083,15 +1085,15 @@ chsc_determine_css_characteristics(void) result = chsc(scsc_area); if (result) { - printk(KERN_WARNING"cio: Was not able to determine " \ - "available CHSCs, cc=%i.\n", result); + CIO_MSG_EVENT(0, "Was not able to determine available CHSCs, " + "cc=%i.\n", result); result = -EIO; goto exit; } if (scsc_area->response.code != 1) { - printk(KERN_WARNING"cio: Was not able to determine " \ - "available CHSCs.\n"); + CIO_MSG_EVENT(0, "Was not able to determine " + "available CHSCs.\n"); result = -EIO; goto exit; } diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h index 2ad81d1..d1f5db1 100644 --- a/drivers/s390/cio/chsc.h +++ b/drivers/s390/cio/chsc.h @@ -79,6 +79,8 @@ extern int chsc_get_ssd_info(struct subchannel_id schid, struct chsc_ssd_info *ssd); extern int chsc_determine_css_characteristics(void); extern int css_characteristics_avail; +extern int chsc_alloc_sei_area(void); +extern void chsc_free_sei_area(void); extern int chsc_enable_facility(int); struct channel_subsystem; diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index ea1defb..f2708d6 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -47,8 +47,8 @@ cio_setup (char *parm) else if (!strcmp (parm, "no")) cio_show_msg = 0; else - printk (KERN_ERR "cio_setup : invalid cio_msg parameter '%s'", - parm); + printk(KERN_ERR "cio: cio_setup: " + "invalid cio_msg parameter '%s'", parm); return 1; } @@ -80,7 +80,6 @@ cio_debug_init (void) goto out_unregister; debug_register_view (cio_debug_crw_id, &debug_sprintf_view); debug_set_level (cio_debug_crw_id, 2); - pr_debug("debugging initialized\n"); return 0; out_unregister: @@ -90,7 +89,7 @@ out_unregister: debug_unregister (cio_debug_trace_id); if (cio_debug_crw_id) debug_unregister (cio_debug_crw_id); - pr_debug("could not initialize debugging\n"); + printk(KERN_WARNING"cio: could not initialize debugging\n"); return -1; } @@ -568,7 +567,7 @@ cio_validate_subchannel (struct subchannel *sch, struct subchannel_id schid) */ if (sch->st != 0) { CIO_DEBUG(KERN_INFO, 0, - "Subchannel 0.%x.%04x reports " + "cio: Subchannel 0.%x.%04x reports " "non-I/O subchannel type %04X\n", sch->schid.ssid, sch->schid.sch_no, sch->st); /* We stop here for non-io subchannels. */ @@ -601,7 +600,7 @@ cio_validate_subchannel (struct subchannel *sch, struct subchannel_id schid) sch->lpm = sch->schib.pmcw.pam & sch->opm; CIO_DEBUG(KERN_INFO, 0, - "Detected device %04x on subchannel 0.%x.%04X" + "cio: Detected device %04x on subchannel 0.%x.%04X" " - PIM = %02X, PAM = %02X, POM = %02X\n", sch->schib.pmcw.dev, sch->schid.ssid, sch->schid.sch_no, sch->schib.pmcw.pim, @@ -766,7 +765,7 @@ cio_get_console_sch_no(void) /* unlike in 2.4, we cannot autoprobe here, since * the channel subsystem is not fully initialized. * With some luck, the HWC console can take over */ - printk(KERN_WARNING "No ccw console found!\n"); + printk(KERN_WARNING "cio: No ccw console found!\n"); return -1; } return console_irq; diff --git a/drivers/s390/cio/cio_debug.h b/drivers/s390/cio/cio_debug.h index f88844a..c9bf898 100644 --- a/drivers/s390/cio/cio_debug.h +++ b/drivers/s390/cio/cio_debug.h @@ -23,6 +23,8 @@ extern debug_info_t *cio_debug_crw_id; static inline void CIO_HEX_EVENT(int level, void *data, int length) { + if (unlikely(!cio_debug_trace_id)) + return; while (length > 0) { debug_event(cio_debug_trace_id, level, data, length); length -= cio_debug_trace_id->buf_size; diff --git a/drivers/s390/cio/cmf.c b/drivers/s390/cio/cmf.c index 28abd69..02fd00b 100644 --- a/drivers/s390/cio/cmf.c +++ b/drivers/s390/cio/cmf.c @@ -1185,12 +1185,12 @@ static ssize_t cmb_enable_store(struct device *dev, struct device_attribute *att case '0': ret = disable_cmf(cdev); if (ret) - printk(KERN_INFO "disable_cmf failed (%d)\n", ret); + dev_info(&cdev->dev, "disable_cmf failed (%d)\n", ret); break; case '1': ret = enable_cmf(cdev); if (ret && ret != -EBUSY) - printk(KERN_INFO "enable_cmf failed (%d)\n", ret); + dev_info(&cdev->dev, "enable_cmf failed (%d)\n", ret); break; } @@ -1280,10 +1280,10 @@ init_cmf(void) format_string = "basic"; cmbops = &cmbops_basic; if (cmb_area.num_channels > 4096 || cmb_area.num_channels < 1) { - printk(KERN_ERR "Basic channel measurement facility" - " can only use 1 to 4096 devices\n" + printk(KERN_ERR "cio: Basic channel measurement " + "facility can only use 1 to 4096 devices\n" KERN_ERR "when the cmf driver is built" - " as a loadable module\n"); + " as a loadable module\n"); return 1; } break; @@ -1292,13 +1292,13 @@ init_cmf(void) cmbops = &cmbops_extended; break; default: - printk(KERN_ERR "Invalid format %d for channel " + printk(KERN_ERR "cio: Invalid format %d for channel " "measurement facility\n", format); return 1; } - printk(KERN_INFO "Channel measurement facility using %s format (%s)\n", - format_string, detect_string); + printk(KERN_INFO "cio: Channel measurement facility using %s " + "format (%s)\n", format_string, detect_string); return 0; } diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c index dfca0ef..1c27a5a 100644 --- a/drivers/s390/cio/css.c +++ b/drivers/s390/cio/css.c @@ -109,7 +109,7 @@ css_subchannel_release(struct device *dev) } } -int css_sch_device_register(struct subchannel *sch) +static int css_sch_device_register(struct subchannel *sch) { int ret; @@ -184,8 +184,8 @@ static int css_register_subchannel(struct subchannel *sch) /* make it known to the system */ ret = css_sch_device_register(sch); if (ret) { - printk (KERN_WARNING "%s: could not register %s\n", - __func__, sch->dev.bus_id); + CIO_MSG_EVENT(0, "Could not register sch 0.%x.%04x: %d\n", + sch->schid.ssid, sch->schid.sch_no, ret); return ret; } return ret; @@ -371,15 +371,12 @@ static int __init slow_subchannel_init(void) spin_lock_init(&slow_subchannel_lock); slow_subchannel_set = idset_sch_new(); if (!slow_subchannel_set) { - printk(KERN_WARNING "cio: could not allocate slow subchannel " - "set\n"); + CIO_MSG_EVENT(0, "could not allocate slow subchannel set\n"); return -ENOMEM; } return 0; } -subsys_initcall(slow_subchannel_init); - static void css_slow_path_func(struct work_struct *unused) { struct subchannel_id schid; @@ -425,8 +422,8 @@ static int reprobe_subchannel(struct subchannel_id schid, void *data) struct subchannel *sch; int ret; - CIO_DEBUG(KERN_INFO, 6, "cio: reprobe 0.%x.%04x\n", - schid.ssid, schid.sch_no); + CIO_MSG_EVENT(6, "cio: reprobe 0.%x.%04x\n", + schid.ssid, schid.sch_no); if (need_reprobe) return -EAGAIN; @@ -642,9 +639,20 @@ init_channel_subsystem (void) { int ret, i; - if (chsc_determine_css_characteristics() == 0) + ret = chsc_determine_css_characteristics(); + if (ret == -ENOMEM) + goto out; /* No need to continue. */ + if (ret == 0) css_characteristics_avail = 1; + ret = chsc_alloc_sei_area(); + if (ret) + goto out; + + ret = slow_subchannel_init(); + if (ret) + goto out; + if ((ret = bus_register(&css_bus_type))) goto out; @@ -710,6 +718,10 @@ out_unregister: out_bus: bus_unregister(&css_bus_type); out: + chsc_free_sei_area(); + kfree(slow_subchannel_set); + printk(KERN_WARNING"cio: failed to initialize css driver (%d)!\n", + ret); return ret; } diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h index ed79775..5d65e83 100644 --- a/drivers/s390/cio/css.h +++ b/drivers/s390/cio/css.h @@ -139,7 +139,6 @@ struct css_driver { */ extern struct bus_type css_bus_type; -extern int css_sch_device_register(struct subchannel *); extern void css_sch_device_unregister(struct subchannel *); extern struct subchannel * get_subchannel_by_schid(struct subchannel_id); extern int css_init_done; diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index 001682e..297659f 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -338,15 +338,20 @@ ccw_device_remove_disconnected(struct ccw_device *cdev) rc = device_schedule_callback(&cdev->dev, ccw_device_remove_orphan_cb); if (rc) - dev_info(&cdev->dev, "Couldn't unregister orphan\n"); + CIO_MSG_EVENT(2, "Couldn't unregister orphan " + "0.%x.%04x\n", + cdev->private->dev_id.ssid, + cdev->private->dev_id.devno); return; } /* Deregister subchannel, which will kill the ccw device. */ rc = device_schedule_callback(cdev->dev.parent, ccw_device_remove_sch_cb); if (rc) - dev_info(&cdev->dev, - "Couldn't unregister disconnected device\n"); + CIO_MSG_EVENT(2, "Couldn't unregister disconnected device " + "0.%x.%04x\n", + cdev->private->dev_id.ssid, + cdev->private->dev_id.devno); } int @@ -379,8 +384,10 @@ ccw_device_set_offline(struct ccw_device *cdev) if (ret == 0) wait_event(cdev->private->wait_q, dev_fsm_final_state(cdev)); else { - pr_debug("ccw_device_offline returned %d, device %s\n", - ret, cdev->dev.bus_id); + CIO_MSG_EVENT(2, "ccw_device_offline returned %d, " + "device 0.%x.%04x\n", + ret, cdev->private->dev_id.ssid, + cdev->private->dev_id.devno); cdev->online = 1; } return ret; @@ -402,8 +409,10 @@ ccw_device_set_online(struct ccw_device *cdev) if (ret == 0) wait_event(cdev->private->wait_q, dev_fsm_final_state(cdev)); else { - pr_debug("ccw_device_online returned %d, device %s\n", - ret, cdev->dev.bus_id); + CIO_MSG_EVENT(2, "ccw_device_online returned %d, " + "device 0.%x.%04x\n", + ret, cdev->private->dev_id.ssid, + cdev->private->dev_id.devno); return ret; } if (cdev->private->state != DEV_STATE_ONLINE) @@ -417,9 +426,11 @@ ccw_device_set_online(struct ccw_device *cdev) spin_unlock_irq(cdev->ccwlock); if (ret == 0) wait_event(cdev->private->wait_q, dev_fsm_final_state(cdev)); - else - pr_debug("ccw_device_offline returned %d, device %s\n", - ret, cdev->dev.bus_id); + else + CIO_MSG_EVENT(2, "ccw_device_offline returned %d, " + "device 0.%x.%04x\n", + ret, cdev->private->dev_id.ssid, + cdev->private->dev_id.devno); return (ret == 0) ? -ENODEV : ret; } @@ -439,9 +450,10 @@ static int online_store_recog_and_online(struct ccw_device *cdev) if (cdev->id.cu_type == 0) { ret = ccw_device_recognition(cdev); if (ret) { - printk(KERN_WARNING"Couldn't start recognition " - "for device %s (ret=%d)\n", - cdev->dev.bus_id, ret); + CIO_MSG_EVENT(0, "Couldn't start recognition " + "for device 0.%x.%04x (ret=%d)\n", + cdev->private->dev_id.ssid, + cdev->private->dev_id.devno, ret); return ret; } wait_event(cdev->private->wait_q, @@ -461,8 +473,8 @@ static void online_store_handle_online(struct ccw_device *cdev, int force) if (force && cdev->private->state == DEV_STATE_BOXED) { ret = ccw_device_stlck(cdev); if (ret) { - printk(KERN_WARNING"ccw_device_stlck for device %s " - "returned %d!\n", cdev->dev.bus_id, ret); + dev_warn(&cdev->dev, + "ccw_device_stlck returned %d!\n", ret); return; } if (cdev->id.cu_type == 0) @@ -893,8 +905,10 @@ io_subchannel_register(struct work_struct *work) ret = device_reprobe(&cdev->dev); if (ret) /* We can't do much here. */ - dev_info(&cdev->dev, "device_reprobe() returned" - " %d\n", ret); + CIO_MSG_EVENT(2, "device_reprobe() returned" + " %d for 0.%x.%04x\n", ret, + cdev->private->dev_id.ssid, + cdev->private->dev_id.devno); } goto out; } @@ -907,8 +921,9 @@ io_subchannel_register(struct work_struct *work) /* make it known to the system */ ret = ccw_device_register(cdev); if (ret) { - printk (KERN_WARNING "%s: could not register %s\n", - __func__, cdev->dev.bus_id); + CIO_MSG_EVENT(0, "Could not register ccw dev 0.%x.%04x: %d\n", + cdev->private->dev_id.ssid, + cdev->private->dev_id.devno, ret); put_device(&cdev->dev); spin_lock_irqsave(sch->lock, flags); sch->dev.driver_data = NULL; @@ -1361,7 +1376,6 @@ ccw_device_remove (struct device *dev) struct ccw_driver *cdrv = cdev->drv; int ret; - pr_debug("removing device %s\n", cdev->dev.bus_id); if (cdrv->remove) cdrv->remove(cdev); if (cdev->online) { @@ -1374,8 +1388,10 @@ ccw_device_remove (struct device *dev) dev_fsm_final_state(cdev)); else //FIXME: we can't fail! - pr_debug("ccw_device_offline returned %d, device %s\n", - ret, cdev->dev.bus_id); + CIO_MSG_EVENT(2, "ccw_device_offline returned %d, " + "device 0.%x.%04x\n", + ret, cdev->private->dev_id.ssid, + cdev->private->dev_id.devno); } ccw_device_set_timeout(cdev, 0); cdev->drv = NULL; diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index 6bba809..8633dc5 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -268,7 +268,7 @@ ccw_device_recog_done(struct ccw_device *cdev, int state) switch (state) { case DEV_STATE_NOT_OPER: CIO_DEBUG(KERN_WARNING, 2, - "SenseID : unknown device %04x on subchannel " + "cio: SenseID : unknown device %04x on subchannel " "0.%x.%04x\n", cdev->private->dev_id.devno, sch->schid.ssid, sch->schid.sch_no); break; @@ -293,7 +293,8 @@ ccw_device_recog_done(struct ccw_device *cdev, int state) return; } /* Issue device info message. */ - CIO_DEBUG(KERN_INFO, 2, "SenseID : device 0.%x.%04x reports: " + CIO_DEBUG(KERN_INFO, 2, + "cio: SenseID : device 0.%x.%04x reports: " "CU Type/Mod = %04X/%02X, Dev Type/Mod = " "%04X/%02X\n", cdev->private->dev_id.ssid, @@ -303,7 +304,7 @@ ccw_device_recog_done(struct ccw_device *cdev, int state) break; case DEV_STATE_BOXED: CIO_DEBUG(KERN_WARNING, 2, - "SenseID : boxed device %04x on subchannel " + "cio: SenseID : boxed device %04x on subchannel " "0.%x.%04x\n", cdev->private->dev_id.devno, sch->schid.ssid, sch->schid.sch_no); break; @@ -388,7 +389,7 @@ ccw_device_done(struct ccw_device *cdev, int state) if (state == DEV_STATE_BOXED) CIO_DEBUG(KERN_WARNING, 2, - "Boxed device %04x on subchannel %04x\n", + "cio: Boxed device %04x on subchannel %04x\n", cdev->private->dev_id.devno, sch->schid.sch_no); if (cdev->private->flags.donotify) { @@ -946,9 +947,10 @@ ccw_device_w4sense(struct ccw_device *cdev, enum dev_event dev_event) /* Basic sense hasn't started. Try again. */ ccw_device_do_sense(cdev, irb); else { - printk(KERN_INFO "Huh? %s(%s): unsolicited " - "interrupt...\n", - __FUNCTION__, cdev->dev.bus_id); + CIO_MSG_EVENT(2, "Huh? 0.%x.%04x: unsolicited " + "interrupt during w4sense...\n", + cdev->private->dev_id.ssid, + cdev->private->dev_id.devno); if (cdev->handler) cdev->handler (cdev, 0, irb); } @@ -1215,8 +1217,8 @@ ccw_device_nop(struct ccw_device *cdev, enum dev_event dev_event) static void ccw_device_bug(struct ccw_device *cdev, enum dev_event dev_event) { - printk(KERN_EMERG "dev_jumptable[%i][%i] == NULL\n", - cdev->private->state, dev_event); + CIO_MSG_EVENT(0, "dev_jumptable[%i][%i] == NULL\n", + cdev->private->state, dev_event); BUG(); } diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c index a5d263f..14eba85 100644 --- a/drivers/s390/cio/device_ops.c +++ b/drivers/s390/cio/device_ops.c @@ -288,253 +288,6 @@ ccw_device_get_path_mask(struct ccw_device *cdev) return sch->lpm; } -static void -ccw_device_wake_up(struct ccw_device *cdev, unsigned long ip, struct irb *irb) -{ - if (!ip) - /* unsolicited interrupt */ - return; - - /* Abuse intparm for error reporting. */ - if (IS_ERR(irb)) - cdev->private->intparm = -EIO; - else if (irb->scsw.cc == 1) - /* Retry for deferred condition code. */ - cdev->private->intparm = -EAGAIN; - else if ((irb->scsw.dstat != - (DEV_STAT_CHN_END|DEV_STAT_DEV_END)) || - (irb->scsw.cstat != 0)) { - /* - * We didn't get channel end / device end. Check if path - * verification has been started; we can retry after it has - * finished. We also retry unit checks except for command reject - * or intervention required. Also check for long busy - * conditions. - */ - if (cdev->private->flags.doverify || - cdev->private->state == DEV_STATE_VERIFY) - cdev->private->intparm = -EAGAIN; - else if ((irb->scsw.dstat & DEV_STAT_UNIT_CHECK) && - !(irb->ecw[0] & - (SNS0_CMD_REJECT | SNS0_INTERVENTION_REQ))) - cdev->private->intparm = -EAGAIN; - else if ((irb->scsw.dstat & DEV_STAT_ATTENTION) && - (irb->scsw.dstat & DEV_STAT_DEV_END) && - (irb->scsw.dstat & DEV_STAT_UNIT_EXCEP)) - cdev->private->intparm = -EAGAIN; - else - cdev->private->intparm = -EIO; - - } else - cdev->private->intparm = 0; - wake_up(&cdev->private->wait_q); -} - -static int -__ccw_device_retry_loop(struct ccw_device *cdev, struct ccw1 *ccw, long magic, __u8 lpm) -{ - int ret; - struct subchannel *sch; - - sch = to_subchannel(cdev->dev.parent); - do { - ccw_device_set_timeout(cdev, 60 * HZ); - ret = cio_start (sch, ccw, lpm); - if (ret != 0) - ccw_device_set_timeout(cdev, 0); - if (ret == -EBUSY) { - /* Try again later. */ - spin_unlock_irq(sch->lock); - msleep(10); - spin_lock_irq(sch->lock); - continue; - } - if (ret != 0) - /* Non-retryable error. */ - break; - /* Wait for end of request. */ - cdev->private->intparm = magic; - spin_unlock_irq(sch->lock); - wait_event(cdev->private->wait_q, - (cdev->private->intparm == -EIO) || - (cdev->private->intparm == -EAGAIN) || - (cdev->private->intparm == 0)); - spin_lock_irq(sch->lock); - /* Check at least for channel end / device end */ - if (cdev->private->intparm == -EIO) { - /* Non-retryable error. */ - ret = -EIO; - break; - } - if (cdev->private->intparm == 0) - /* Success. */ - break; - /* Try again later. */ - spin_unlock_irq(sch->lock); - msleep(10); - spin_lock_irq(sch->lock); - } while (1); - - return ret; -} - -/** - * read_dev_chars() - read device characteristics - * @param cdev target ccw device - * @param buffer pointer to buffer for rdc data - * @param length size of rdc data - * @returns 0 for success, negative error value on failure - * - * Context: - * called for online device, lock not held - **/ -int -read_dev_chars (struct ccw_device *cdev, void **buffer, int length) -{ - void (*handler)(struct ccw_device *, unsigned long, struct irb *); - struct subchannel *sch; - int ret; - struct ccw1 *rdc_ccw; - - if (!cdev) - return -ENODEV; - if (!buffer || !length) - return -EINVAL; - sch = to_subchannel(cdev->dev.parent); - - CIO_TRACE_EVENT (4, "rddevch"); - CIO_TRACE_EVENT (4, sch->dev.bus_id); - - rdc_ccw = kzalloc(sizeof(struct ccw1), GFP_KERNEL | GFP_DMA); - if (!rdc_ccw) - return -ENOMEM; - rdc_ccw->cmd_code = CCW_CMD_RDC; - rdc_ccw->count = length; - rdc_ccw->flags = CCW_FLAG_SLI; - ret = set_normalized_cda (rdc_ccw, (*buffer)); - if (ret != 0) { - kfree(rdc_ccw); - return ret; - } - - spin_lock_irq(sch->lock); - /* Save interrupt handler. */ - handler = cdev->handler; - /* Temporarily install own handler. */ - cdev->handler = ccw_device_wake_up; - if (cdev->private->state != DEV_STATE_ONLINE) - ret = -ENODEV; - else if (((sch->schib.scsw.stctl & SCSW_STCTL_PRIM_STATUS) && - !(sch->schib.scsw.stctl & SCSW_STCTL_SEC_STATUS)) || - cdev->private->flags.doverify) - ret = -EBUSY; - else - /* 0x00D9C4C3 == ebcdic "RDC" */ - ret = __ccw_device_retry_loop(cdev, rdc_ccw, 0x00D9C4C3, 0); - - /* Restore interrupt handler. */ - cdev->handler = handler; - spin_unlock_irq(sch->lock); - - clear_normalized_cda (rdc_ccw); - kfree(rdc_ccw); - - return ret; -} - -/* - * Read Configuration data using path mask - */ -int -read_conf_data_lpm (struct ccw_device *cdev, void **buffer, int *length, __u8 lpm) -{ - void (*handler)(struct ccw_device *, unsigned long, struct irb *); - struct subchannel *sch; - struct ciw *ciw; - char *rcd_buf; - int ret; - struct ccw1 *rcd_ccw; - - if (!cdev) - return -ENODEV; - if (!buffer || !length) - return -EINVAL; - sch = to_subchannel(cdev->dev.parent); - - CIO_TRACE_EVENT (4, "rdconf"); - CIO_TRACE_EVENT (4, sch->dev.bus_id); - - /* - * scan for RCD command in extended SenseID data - */ - ciw = ccw_device_get_ciw(cdev, CIW_TYPE_RCD); - if (!ciw || ciw->cmd == 0) - return -EOPNOTSUPP; - - /* Adjust requested path mask to excluded varied off paths. */ - if (lpm) { - lpm &= sch->opm; - if (lpm == 0) - return -EACCES; - } - - rcd_ccw = kzalloc(sizeof(struct ccw1), GFP_KERNEL | GFP_DMA); - if (!rcd_ccw) - return -ENOMEM; - rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA); - if (!rcd_buf) { - kfree(rcd_ccw); - return -ENOMEM; - } - rcd_ccw->cmd_code = ciw->cmd; - rcd_ccw->cda = (__u32) __pa (rcd_buf); - rcd_ccw->count = ciw->count; - rcd_ccw->flags = CCW_FLAG_SLI; - - spin_lock_irq(sch->lock); - /* Save interrupt handler. */ - handler = cdev->handler; - /* Temporarily install own handler. */ - cdev->handler = ccw_device_wake_up; - if (cdev->private->state != DEV_STATE_ONLINE) - ret = -ENODEV; - else if (((sch->schib.scsw.stctl & SCSW_STCTL_PRIM_STATUS) && - !(sch->schib.scsw.stctl & SCSW_STCTL_SEC_STATUS)) || - cdev->private->flags.doverify) - ret = -EBUSY; - else - /* 0x00D9C3C4 == ebcdic "RCD" */ - ret = __ccw_device_retry_loop(cdev, rcd_ccw, 0x00D9C3C4, lpm); - - /* Restore interrupt handler. */ - cdev->handler = handler; - spin_unlock_irq(sch->lock); - - /* - * on success we update the user input parms - */ - if (ret) { - kfree (rcd_buf); - *buffer = NULL; - *length = 0; - } else { - *length = ciw->count; - *buffer = rcd_buf; - } - kfree(rcd_ccw); - - return ret; -} - -/* - * Read Configuration data - */ -int -read_conf_data (struct ccw_device *cdev, void **buffer, int *length) -{ - return read_conf_data_lpm (cdev, buffer, length, 0); -} - /* * Try to break the lock on a boxed device. */ @@ -635,12 +388,6 @@ _ccw_device_get_subchannel_number(struct ccw_device *cdev) return cdev->private->schid.sch_no; } -int -_ccw_device_get_device_number(struct ccw_device *cdev) -{ - return cdev->private->dev_id.devno; -} - MODULE_LICENSE("GPL"); EXPORT_SYMBOL(ccw_device_set_options_mask); @@ -655,9 +402,5 @@ EXPORT_SYMBOL(ccw_device_start_timeout_key); EXPORT_SYMBOL(ccw_device_start_key); EXPORT_SYMBOL(ccw_device_get_ciw); EXPORT_SYMBOL(ccw_device_get_path_mask); -EXPORT_SYMBOL(read_conf_data); -EXPORT_SYMBOL(read_dev_chars); EXPORT_SYMBOL(_ccw_device_get_subchannel_number); -EXPORT_SYMBOL(_ccw_device_get_device_number); EXPORT_SYMBOL_GPL(ccw_device_get_chp_desc); -EXPORT_SYMBOL_GPL(read_conf_data_lpm); 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