diff options
author | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-06-10 18:47:26 (GMT) |
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committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-06-10 18:47:26 (GMT) |
commit | f0cd91a68acdc9b49d7f6738b514a426da627649 (patch) | |
tree | 8ad73564015794197583b094217ae0a71e71e753 /drivers/s390 | |
parent | 60eef25701d25e99c991dd0f4a9f3832a0c3ad3e (diff) | |
parent | 128e6ced247cda88f96fa9f2e4ba8b2c4a681560 (diff) | |
download | linux-fsl-qoriq-f0cd91a68acdc9b49d7f6738b514a426da627649.tar.xz |
Merge ../linux-2.6
Diffstat (limited to 'drivers/s390')
28 files changed, 911 insertions, 703 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index a3bfebc..cfb1fff 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -315,6 +315,11 @@ dasd_increase_state(struct dasd_device *device) rc = dasd_state_basic_to_ready(device); if (!rc && + device->state == DASD_STATE_UNFMT && + device->target > DASD_STATE_UNFMT) + rc = -EPERM; + + if (!rc && device->state == DASD_STATE_READY && device->target >= DASD_STATE_ONLINE) rc = dasd_state_ready_to_online(device); diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c index c1c6f13..216bc4f 100644 --- a/drivers/s390/block/dasd_devmap.c +++ b/drivers/s390/block/dasd_devmap.c @@ -45,6 +45,7 @@ struct dasd_devmap { unsigned int devindex; unsigned short features; struct dasd_device *device; + struct dasd_uid uid; }; /* @@ -716,6 +717,68 @@ dasd_discipline_show(struct device *dev, struct device_attribute *attr, char *bu static DEVICE_ATTR(discipline, 0444, dasd_discipline_show, NULL); +static ssize_t +dasd_alias_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct dasd_devmap *devmap; + int alias; + + devmap = dasd_find_busid(dev->bus_id); + spin_lock(&dasd_devmap_lock); + if (!IS_ERR(devmap)) + alias = devmap->uid.alias; + else + alias = 0; + spin_unlock(&dasd_devmap_lock); + + return sprintf(buf, alias ? "1\n" : "0\n"); +} + +static DEVICE_ATTR(alias, 0444, dasd_alias_show, NULL); + +static ssize_t +dasd_vendor_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct dasd_devmap *devmap; + char *vendor; + + devmap = dasd_find_busid(dev->bus_id); + spin_lock(&dasd_devmap_lock); + if (!IS_ERR(devmap) && strlen(devmap->uid.vendor) > 0) + vendor = devmap->uid.vendor; + else + vendor = ""; + spin_unlock(&dasd_devmap_lock); + + return snprintf(buf, PAGE_SIZE, "%s\n", vendor); +} + +static DEVICE_ATTR(vendor, 0444, dasd_vendor_show, NULL); + +#define UID_STRLEN ( /* vendor */ 3 + 1 + /* serial */ 14 + 1 +\ + /* SSID */ 4 + 1 + /* unit addr */ 2 + 1) + +static ssize_t +dasd_uid_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct dasd_devmap *devmap; + char uid[UID_STRLEN]; + + devmap = dasd_find_busid(dev->bus_id); + spin_lock(&dasd_devmap_lock); + if (!IS_ERR(devmap) && strlen(devmap->uid.vendor) > 0) + snprintf(uid, sizeof(uid), "%s.%s.%04x.%02x", + devmap->uid.vendor, devmap->uid.serial, + devmap->uid.ssid, devmap->uid.unit_addr); + else + uid[0] = 0; + spin_unlock(&dasd_devmap_lock); + + return snprintf(buf, PAGE_SIZE, "%s\n", uid); +} + +static DEVICE_ATTR(uid, 0444, dasd_uid_show, NULL); + /* * extended error-reporting */ @@ -759,6 +822,9 @@ static DEVICE_ATTR(eer_enabled, 0644, dasd_eer_show, dasd_eer_store); static struct attribute * dasd_attrs[] = { &dev_attr_readonly.attr, &dev_attr_discipline.attr, + &dev_attr_alias.attr, + &dev_attr_vendor.attr, + &dev_attr_uid.attr, &dev_attr_use_diag.attr, &dev_attr_eer_enabled.attr, NULL, @@ -768,6 +834,42 @@ static struct attribute_group dasd_attr_group = { .attrs = dasd_attrs, }; + +/* + * Return copy of the device unique identifier. + */ +int +dasd_get_uid(struct ccw_device *cdev, struct dasd_uid *uid) +{ + struct dasd_devmap *devmap; + + devmap = dasd_find_busid(cdev->dev.bus_id); + if (IS_ERR(devmap)) + return PTR_ERR(devmap); + spin_lock(&dasd_devmap_lock); + *uid = devmap->uid; + spin_unlock(&dasd_devmap_lock); + return 0; +} + +/* + * Register the given device unique identifier into devmap struct. + */ +int +dasd_set_uid(struct ccw_device *cdev, struct dasd_uid *uid) +{ + struct dasd_devmap *devmap; + + devmap = dasd_find_busid(cdev->dev.bus_id); + if (IS_ERR(devmap)) + return PTR_ERR(devmap); + spin_lock(&dasd_devmap_lock); + devmap->uid = *uid; + spin_unlock(&dasd_devmap_lock); + return 0; +} +EXPORT_SYMBOL(dasd_set_uid); + /* * Return value of the specified feature. */ diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index ee09ef3..7d5a6ce 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -446,6 +446,39 @@ dasd_eckd_cdl_reclen(int recid) return LABEL_SIZE; } +/* + * Generate device unique id that specifies the physical device. + */ +static int +dasd_eckd_generate_uid(struct dasd_device *device, struct dasd_uid *uid) +{ + struct dasd_eckd_private *private; + struct dasd_eckd_confdata *confdata; + + private = (struct dasd_eckd_private *) device->private; + if (!private) + return -ENODEV; + confdata = &private->conf_data; + if (!confdata) + return -ENODEV; + + memset(uid, 0, sizeof(struct dasd_uid)); + strncpy(uid->vendor, confdata->ned1.HDA_manufacturer, + sizeof(uid->vendor) - 1); + EBCASC(uid->vendor, sizeof(uid->vendor) - 1); + strncpy(uid->serial, confdata->ned1.HDA_location, + sizeof(uid->serial) - 1); + EBCASC(uid->serial, sizeof(uid->serial) - 1); + uid->ssid = confdata->neq.subsystemID; + if (confdata->ned2.sneq.flags == 0x40) { + uid->alias = 1; + uid->unit_addr = confdata->ned2.sneq.base_unit_addr; + } else + uid->unit_addr = confdata->ned1.unit_addr; + + return 0; +} + static int dasd_eckd_read_conf(struct dasd_device *device) { @@ -507,11 +540,15 @@ dasd_eckd_read_conf(struct dasd_device *device) return 0; } - +/* + * Check device characteristics. + * If the device is accessible using ECKD discipline, the device is enabled. + */ static int dasd_eckd_check_characteristics(struct dasd_device *device) { struct dasd_eckd_private *private; + struct dasd_uid uid; void *rdc_data; int rc; @@ -536,6 +573,7 @@ dasd_eckd_check_characteristics(struct dasd_device *device) /* Read Device Characteristics */ rdc_data = (void *) &(private->rdc_data); + memset(rdc_data, 0, sizeof(rdc_data)); rc = read_dev_chars(device->cdev, &rdc_data, 64); if (rc) { DEV_MESSAGE(KERN_WARNING, device, @@ -556,8 +594,17 @@ dasd_eckd_check_characteristics(struct dasd_device *device) /* Read Configuration Data */ rc = dasd_eckd_read_conf (device); - return rc; + if (rc) + return rc; + + /* Generate device unique id and register in devmap */ + rc = dasd_eckd_generate_uid(device, &uid); + if (rc) + return rc; + rc = dasd_set_uid(device->cdev, &uid); + + return rc; } static struct dasd_ccw_req * diff --git a/drivers/s390/block/dasd_eckd.h b/drivers/s390/block/dasd_eckd.h index ad8524b..d5734e9 100644 --- a/drivers/s390/block/dasd_eckd.h +++ b/drivers/s390/block/dasd_eckd.h @@ -228,26 +228,36 @@ struct dasd_eckd_confdata { unsigned char HDA_manufacturer[3]; unsigned char HDA_location[2]; unsigned char HDA_seqno[12]; - __u16 ID; + __u8 ID; + __u8 unit_addr; } __attribute__ ((packed)) ned1; - struct { + union { struct { - unsigned char identifier:2; - unsigned char token_id:1; - unsigned char sno_valid:1; - unsigned char subst_sno:1; - unsigned char recNED:1; - unsigned char emuNED:1; - unsigned char reserved:1; - } __attribute__ ((packed)) flags; - __u8 descriptor; - __u8 reserved[2]; - unsigned char dev_type[6]; - unsigned char dev_model[3]; - unsigned char DASD_manufacturer[3]; - unsigned char DASD_location[2]; - unsigned char DASD_seqno[12]; - __u16 ID; + struct { + unsigned char identifier:2; + unsigned char token_id:1; + unsigned char sno_valid:1; + unsigned char subst_sno:1; + unsigned char recNED:1; + unsigned char emuNED:1; + unsigned char reserved:1; + } __attribute__ ((packed)) flags; + __u8 descriptor; + __u8 reserved[2]; + unsigned char dev_type[6]; + unsigned char dev_model[3]; + unsigned char DASD_manufacturer[3]; + unsigned char DASD_location[2]; + unsigned char DASD_seqno[12]; + __u16 ID; + } __attribute__ ((packed)) ned; + struct { + unsigned char flags; /* byte 0 */ + unsigned char res2[7]; /* byte 1- 7 */ + unsigned char sua_flags; /* byte 8 */ + __u8 base_unit_addr; /* byte 9 */ + unsigned char res3[22]; /* byte 10-31 */ + } __attribute__ ((packed)) sneq; } __attribute__ ((packed)) ned2; struct { struct { diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h index 4293ba8..d4b13e3 100644 --- a/drivers/s390/block/dasd_int.h +++ b/drivers/s390/block/dasd_int.h @@ -268,6 +268,16 @@ struct dasd_discipline { extern struct dasd_discipline *dasd_diag_discipline_pointer; +/* + * Unique identifier for dasd device. + */ +struct dasd_uid { + __u8 alias; + char vendor[4]; + char serial[15]; + __u16 ssid; + __u8 unit_addr; +}; /* * Notification numbers for extended error reporting notifications: @@ -516,6 +526,8 @@ void dasd_devmap_exit(void); struct dasd_device *dasd_create_device(struct ccw_device *); void dasd_delete_device(struct dasd_device *); +int dasd_get_uid(struct ccw_device *, struct dasd_uid *); +int dasd_set_uid(struct ccw_device *, struct dasd_uid *); int dasd_get_feature(struct ccw_device *, int); int dasd_set_feature(struct ccw_device *, int, int); diff --git a/drivers/s390/char/tape_3590.c b/drivers/s390/char/tape_3590.c index c3915f6..d71ef1a 100644 --- a/drivers/s390/char/tape_3590.c +++ b/drivers/s390/char/tape_3590.c @@ -230,14 +230,16 @@ tape_3590_read_attmsg(struct tape_device *device) * These functions are used to schedule follow-up actions from within an * interrupt context (like unsolicited interrupts). */ +struct work_handler_data { + struct tape_device *device; + enum tape_op op; + struct work_struct work; +}; + static void tape_3590_work_handler(void *data) { - struct { - struct tape_device *device; - enum tape_op op; - struct work_struct work; - } *p = data; + struct work_handler_data *p = data; switch (p->op) { case TO_MSEN: @@ -257,11 +259,7 @@ tape_3590_work_handler(void *data) static int tape_3590_schedule_work(struct tape_device *device, enum tape_op op) { - struct { - struct tape_device *device; - enum tape_op op; - struct work_struct work; - } *p; + struct work_handler_data *p; if ((p = kzalloc(sizeof(*p), GFP_ATOMIC)) == NULL) return -ENOMEM; @@ -316,7 +314,7 @@ tape_3590_bread(struct tape_device *device, struct request *req) rq_for_each_bio(bio, req) { bio_for_each_segment(bv, bio, i) { - dst = kmap(bv->bv_page) + bv->bv_offset; + 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; @@ -1168,6 +1166,7 @@ tape_3590_setup_device(struct tape_device *device) static void tape_3590_cleanup_device(struct tape_device *device) { + flush_scheduled_work(); tape_std_unassign(device); kfree(device->discdata); @@ -1234,6 +1233,7 @@ static struct tape_discipline tape_discipline_3590 = { static struct ccw_device_id tape_3590_ids[] = { {CCW_DEVICE_DEVTYPE(0x3590, 0, 0x3590, 0), .driver_info = tape_3590}, + {CCW_DEVICE_DEVTYPE(0x3592, 0, 0x3592, 0), .driver_info = tape_3592}, { /* end of list */ } }; diff --git a/drivers/s390/char/tape_std.h b/drivers/s390/char/tape_std.h index 2d31179..1fc9523 100644 --- a/drivers/s390/char/tape_std.h +++ b/drivers/s390/char/tape_std.h @@ -153,6 +153,7 @@ enum s390_tape_type { tape_3480, tape_3490, tape_3590, + tape_3592, }; #endif // _TAPE_STD_H diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index 6412b2c..72187e5 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -242,28 +242,10 @@ s390_subchannel_remove_chpid(struct device *dev, void *data) if (sch->vpm == mask) goto out_unreg; - if ((sch->schib.scsw.actl & (SCSW_ACTL_CLEAR_PEND | - SCSW_ACTL_HALT_PEND | - SCSW_ACTL_START_PEND | - SCSW_ACTL_RESUME_PEND)) && - (sch->schib.pmcw.lpum == mask)) { - int cc = cio_cancel(sch); - - if (cc == -ENODEV) - goto out_unreg; - - if (cc == -EINVAL) { - cc = cio_clear(sch); - if (cc == -ENODEV) - goto out_unreg; - /* Call handler. */ - if (sch->driver && sch->driver->termination) - sch->driver->termination(&sch->dev); - goto out_unlock; - } - } else if ((sch->schib.scsw.actl & SCSW_ACTL_DEVACT) && - (sch->schib.scsw.actl & SCSW_ACTL_SCHACT) && - (sch->schib.pmcw.lpum == mask)) { + if ((sch->schib.scsw.actl & SCSW_ACTL_DEVACT) && + (sch->schib.scsw.actl & SCSW_ACTL_SCHACT) && + (sch->schib.pmcw.lpum == mask) && + (sch->vpm == 0)) { int cc; cc = cio_clear(sch); @@ -653,13 +635,13 @@ __chp_add(struct subchannel_id schid, void *data) if (sch->schib.pmcw.chpid[i] == chp->id) { if (stsch(sch->schid, &sch->schib) != 0) { /* Endgame. */ - spin_unlock(&sch->lock); + spin_unlock_irq(&sch->lock); return -ENXIO; } break; } if (i==8) { - spin_unlock(&sch->lock); + spin_unlock_irq(&sch->lock); return 0; } sch->lpm = ((sch->schib.pmcw.pim & diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h index 74a257b..e210f89 100644 --- a/drivers/s390/cio/css.h +++ b/drivers/s390/cio/css.h @@ -45,11 +45,11 @@ struct pgid { union { __u8 fc; /* SPID function code */ struct path_state ps; /* SNID path state */ - } inf; + } __attribute__ ((packed)) inf; union { __u32 cpu_addr : 16; /* CPU address */ struct extended_cssid ext_cssid; - } pgid_high; + } __attribute__ ((packed)) pgid_high; __u32 cpu_id : 24; /* CPU identification */ __u32 cpu_model : 16; /* CPU model */ __u32 tod_high; /* high word TOD clock */ diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index 180b3bf..49ec562 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -749,7 +749,7 @@ ccw_device_irq(struct ccw_device *cdev, enum dev_event dev_event) /* Unit check but no sense data. Need basic sense. */ if (ccw_device_do_sense(cdev, irb) != 0) goto call_handler_unsol; - memcpy(irb, &cdev->private->irb, sizeof(struct irb)); + memcpy(&cdev->private->irb, irb, sizeof(struct irb)); cdev->private->state = DEV_STATE_W4SENSE; cdev->private->intparm = 0; return; diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c index 814f925..96f5192 100644 --- a/drivers/s390/cio/qdio.c +++ b/drivers/s390/cio/qdio.c @@ -38,6 +38,7 @@ #include <linux/kernel.h> #include <linux/proc_fs.h> #include <linux/timer.h> +#include <linux/mempool.h> #include <asm/ccwdev.h> #include <asm/io.h> @@ -80,6 +81,8 @@ static int indicator_used[INDICATORS_PER_CACHELINE]; static __u32 * volatile indicators; static __u32 volatile spare_indicator; static atomic_t spare_indicator_usecount; +#define QDIO_MEMPOOL_SCSSC_ELEMENTS 2 +static mempool_t *qdio_mempool_scssc; static debug_info_t *qdio_dbf_setup; static debug_info_t *qdio_dbf_sbal; @@ -1637,7 +1640,7 @@ next: } kfree(irq_ptr->qdr); - kfree(irq_ptr); + free_page((unsigned long) irq_ptr); } static void @@ -2304,7 +2307,7 @@ qdio_get_ssqd_information(struct qdio_irq *irq_ptr) QDIO_DBF_TEXT0(0,setup,"getssqd"); qdioac = 0; - ssqd_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA); + ssqd_area = mempool_alloc(qdio_mempool_scssc, GFP_ATOMIC); if (!ssqd_area) { QDIO_PRINT_WARN("Could not get memory for chsc. Using all " \ "SIGAs for sch x%x.\n", irq_ptr->schid.sch_no); @@ -2364,7 +2367,7 @@ qdio_get_ssqd_information(struct qdio_irq *irq_ptr) out: qdio_check_subchannel_qebsm(irq_ptr, qdioac, ssqd_area->sch_token); - free_page ((unsigned long) ssqd_area); + mempool_free(ssqd_area, qdio_mempool_scssc); irq_ptr->qdioac = qdioac; } @@ -2458,7 +2461,7 @@ tiqdio_set_subchannel_ind(struct qdio_irq *irq_ptr, int reset_to_zero) virt_to_phys((volatile void *)irq_ptr->dev_st_chg_ind); } - scssc_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA); + scssc_area = mempool_alloc(qdio_mempool_scssc, GFP_ATOMIC); if (!scssc_area) { QDIO_PRINT_WARN("No memory for setting indicators on " \ "subchannel 0.%x.%x.\n", @@ -2514,7 +2517,7 @@ tiqdio_set_subchannel_ind(struct qdio_irq *irq_ptr, int reset_to_zero) QDIO_DBF_HEX2(0,setup,&real_addr_dev_st_chg_ind,sizeof(unsigned long)); result = 0; out: - free_page ((unsigned long) scssc_area); + mempool_free(scssc_area, qdio_mempool_scssc); return result; } @@ -2543,7 +2546,7 @@ tiqdio_set_delay_target(struct qdio_irq *irq_ptr, unsigned long delay_target) if (!irq_ptr->is_thinint_irq) return -ENODEV; - scsscf_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA); + scsscf_area = mempool_alloc(qdio_mempool_scssc, GFP_ATOMIC); if (!scsscf_area) { QDIO_PRINT_WARN("No memory for setting delay target on " \ "subchannel 0.%x.%x.\n", @@ -2581,7 +2584,7 @@ tiqdio_set_delay_target(struct qdio_irq *irq_ptr, unsigned long delay_target) QDIO_DBF_HEX2(0,trace,&delay_target,sizeof(unsigned long)); result = 0; /* not critical */ out: - free_page ((unsigned long) scsscf_area); + mempool_free(scsscf_area, qdio_mempool_scssc); return result; } @@ -2980,7 +2983,7 @@ qdio_allocate(struct qdio_initialize *init_data) qdio_allocate_do_dbf(init_data); /* create irq */ - irq_ptr = kzalloc(sizeof(struct qdio_irq), GFP_KERNEL | GFP_DMA); + irq_ptr = (void *) get_zeroed_page(GFP_KERNEL | GFP_DMA); QDIO_DBF_TEXT0(0,setup,"irq_ptr:"); QDIO_DBF_HEX0(0,setup,&irq_ptr,sizeof(void*)); @@ -2995,7 +2998,7 @@ qdio_allocate(struct qdio_initialize *init_data) /* QDR must be in DMA area since CCW data address is only 32 bit */ irq_ptr->qdr=kmalloc(sizeof(struct qdr), GFP_KERNEL | GFP_DMA); if (!(irq_ptr->qdr)) { - kfree(irq_ptr); + free_page((unsigned long) irq_ptr); QDIO_PRINT_ERR("kmalloc of irq_ptr->qdr failed!\n"); return -ENOMEM; } @@ -3780,6 +3783,16 @@ oom: return -ENOMEM; } +static void *qdio_mempool_alloc(gfp_t gfp_mask, void *size) +{ + return (void *) get_zeroed_page(gfp_mask|GFP_DMA); +} + +static void qdio_mempool_free(void *element, void *size) +{ + free_page((unsigned long) element); +} + static int __init init_QDIO(void) { @@ -3809,6 +3822,10 @@ init_QDIO(void) qdio_add_procfs_entry(); + qdio_mempool_scssc = mempool_create(QDIO_MEMPOOL_SCSSC_ELEMENTS, + qdio_mempool_alloc, + qdio_mempool_free, NULL); + if (tiqdio_check_chsc_availability()) QDIO_PRINT_ERR("Not all CHSCs supported. Continuing.\n"); @@ -3824,6 +3841,7 @@ cleanup_QDIO(void) qdio_remove_procfs_entry(); qdio_release_qdio_memory(); qdio_unregister_dbf_views(); + mempool_destroy(qdio_mempool_scssc); printk("qdio: %s: module removed\n",version); } diff --git a/drivers/s390/net/ctcmain.c b/drivers/s390/net/ctcmain.c index af9f212..fe986af 100644 --- a/drivers/s390/net/ctcmain.c +++ b/drivers/s390/net/ctcmain.c @@ -1486,13 +1486,13 @@ ch_action_iofatal(fsm_instance * fi, int event, void *arg) } } -static void +static void ch_action_reinit(fsm_instance *fi, int event, void *arg) { struct channel *ch = (struct channel *)arg; struct net_device *dev = ch->netdev; struct ctc_priv *privptr = dev->priv; - + DBF_TEXT(trace, 4, __FUNCTION__); ch_action_iofatal(fi, event, arg); fsm_addtimer(&privptr->restart_timer, 1000, DEV_EVENT_RESTART, dev); @@ -1624,7 +1624,7 @@ less_than(char *id1, char *id2) } dev1 = simple_strtoul(id1, &id1, 16); dev2 = simple_strtoul(id2, &id2, 16); - + return (dev1 < dev2); } @@ -1895,7 +1895,7 @@ ctc_irq_handler(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) irb->scsw.dstat); return; } - + priv = ((struct ccwgroup_device *)cdev->dev.driver_data) ->dev.driver_data; @@ -1909,7 +1909,7 @@ ctc_irq_handler(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) "device %s\n", cdev->dev.bus_id); return; } - + dev = (struct net_device *) (ch->netdev); if (dev == NULL) { ctc_pr_crit("ctc: ctc_irq_handler dev=NULL bus_id=%s, ch=0x%p\n", @@ -2008,12 +2008,12 @@ dev_action_stop(fsm_instance * fi, int event, void *arg) fsm_event(ch->fsm, CH_EVENT_STOP, ch); } } -static void +static void dev_action_restart(fsm_instance *fi, int event, void *arg) { struct net_device *dev = (struct net_device *)arg; struct ctc_priv *privptr = dev->priv; - + DBF_TEXT(trace, 3, __FUNCTION__); ctc_pr_debug("%s: Restarting\n", dev->name); dev_action_stop(fi, event, arg); @@ -2193,7 +2193,7 @@ transmit_skb(struct channel *ch, struct sk_buff *skb) DBF_TEXT(trace, 5, __FUNCTION__); /* we need to acquire the lock for testing the state - * otherwise we can have an IRQ changing the state to + * otherwise we can have an IRQ changing the state to * TXIDLE after the test but before acquiring the lock. */ spin_lock_irqsave(&ch->collect_lock, saveflags); @@ -2393,7 +2393,7 @@ ctc_tx(struct sk_buff *skb, struct net_device * dev) /** * If channels are not running, try to restart them - * and throw away packet. + * and throw away packet. */ if (fsm_getstate(privptr->fsm) != DEV_STATE_RUNNING) { fsm_event(privptr->fsm, DEV_EVENT_START, dev); @@ -2738,7 +2738,7 @@ ctc_remove_files(struct device *dev) /** * Add ctc specific attributes. * Add ctc private data. - * + * * @param cgdev pointer to ccwgroup_device just added * * @returns 0 on success, !0 on failure. @@ -2869,7 +2869,7 @@ ctc_new_device(struct ccwgroup_device *cgdev) DBF_TEXT(setup, 3, buffer); type = get_channel_type(&cgdev->cdev[0]->id); - + snprintf(read_id, CTC_ID_SIZE, "ch-%s", cgdev->cdev[0]->dev.bus_id); snprintf(write_id, CTC_ID_SIZE, "ch-%s", cgdev->cdev[1]->dev.bus_id); @@ -2907,7 +2907,7 @@ ctc_new_device(struct ccwgroup_device *cgdev) channel_get(type, direction == READ ? read_id : write_id, direction); if (privptr->channel[direction] == NULL) { - if (direction == WRITE) + if (direction == WRITE) channel_free(privptr->channel[READ]); ctc_free_netdevice(dev, 1); @@ -2955,7 +2955,7 @@ ctc_shutdown_device(struct ccwgroup_device *cgdev) { struct ctc_priv *priv; struct net_device *ndev; - + DBF_TEXT(setup, 3, __FUNCTION__); pr_debug("%s() called\n", __FUNCTION__); diff --git a/drivers/s390/net/ctctty.c b/drivers/s390/net/ctctty.c index 5cdcdbf..af54d1d 100644 --- a/drivers/s390/net/ctctty.c +++ b/drivers/s390/net/ctctty.c @@ -130,7 +130,7 @@ ctc_tty_readmodem(ctc_tty_info *info) if ((tty = info->tty)) { if (info->mcr & UART_MCR_RTS) { struct sk_buff *skb; - + if ((skb = skb_dequeue(&info->rx_queue))) { int len = skb->len; tty_insert_flip_string(tty, skb->data, len); @@ -328,7 +328,7 @@ ctc_tty_inject(ctc_tty_info *info, char c) { int skb_res; struct sk_buff *skb; - + DBF_TEXT(trace, 4, __FUNCTION__); if (ctc_tty_shuttingdown) return; @@ -497,7 +497,7 @@ ctc_tty_write(struct tty_struct *tty, const u_char * buf, int count) c = (count < CTC_TTY_XMIT_SIZE) ? count : CTC_TTY_XMIT_SIZE; if (c <= 0) break; - + skb_res = info->netdev->hard_header_len + sizeof(info->mcr) + + sizeof(__u32); skb = dev_alloc_skb(skb_res + c); @@ -828,7 +828,7 @@ ctc_tty_block_til_ready(struct tty_struct *tty, struct file *filp, ctc_tty_info if (tty_hung_up_p(filp) || (info->flags & CTC_ASYNC_CLOSING)) { if (info->flags & CTC_ASYNC_CLOSING) - wait_event(info->close_wait, + wait_event(info->close_wait, !(info->flags & CTC_ASYNC_CLOSING)); #ifdef MODEM_DO_RESTART if (info->flags & CTC_ASYNC_HUP_NOTIFY) @@ -1247,7 +1247,7 @@ ctc_tty_unregister_netdev(struct net_device *dev) { void ctc_tty_cleanup(void) { unsigned long saveflags; - + DBF_TEXT(trace, 2, __FUNCTION__); spin_lock_irqsave(&ctc_tty_lock, saveflags); ctc_tty_shuttingdown = 1; diff --git a/drivers/s390/net/cu3088.c b/drivers/s390/net/cu3088.c index b125331..e965f03 100644 --- a/drivers/s390/net/cu3088.c +++ b/drivers/s390/net/cu3088.c @@ -20,7 +20,7 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * */ - + #include <linux/init.h> #include <linux/module.h> #include <linux/err.h> @@ -77,7 +77,7 @@ group_write(struct device_driver *drv, const char *buf, size_t count) int len; if (!(end = strchr(start, delim[i]))) - return count; + return -EINVAL; len = min_t(ptrdiff_t, BUS_ID_SIZE, end - start + 1); strlcpy (bus_ids[i], start, len); argv[i] = bus_ids[i]; @@ -94,7 +94,7 @@ static DRIVER_ATTR(group, 0200, NULL, group_write); /* Register-unregister for ctc&lcs */ int -register_cu3088_discipline(struct ccwgroup_driver *dcp) +register_cu3088_discipline(struct ccwgroup_driver *dcp) { int rc; @@ -109,7 +109,7 @@ register_cu3088_discipline(struct ccwgroup_driver *dcp) rc = driver_create_file(&dcp->driver, &driver_attr_group); if (rc) ccwgroup_driver_unregister(dcp); - + return rc; } @@ -137,7 +137,7 @@ static int __init cu3088_init (void) { int rc; - + cu3088_root_dev = s390_root_dev_register("cu3088"); if (IS_ERR(cu3088_root_dev)) return PTR_ERR(cu3088_root_dev); diff --git a/drivers/s390/net/iucv.c b/drivers/s390/net/iucv.c index 6190be9..e0c7deb 100644 --- a/drivers/s390/net/iucv.c +++ b/drivers/s390/net/iucv.c @@ -1,4 +1,4 @@ -/* +/* * IUCV network driver * * Copyright (C) 2001 IBM Deutschland Entwicklung GmbH, IBM Corporation @@ -28,7 +28,7 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * */ - + /* #define DEBUG */ #include <linux/module.h> @@ -81,7 +81,7 @@ iucv_bus_match (struct device *dev, struct device_driver *drv) struct bus_type iucv_bus = { .name = "iucv", .match = iucv_bus_match, -}; +}; struct device *iucv_root; @@ -297,7 +297,7 @@ MODULE_LICENSE("GPL"); /* * Debugging stuff *******************************************************************************/ - + #ifdef DEBUG static int debuglevel = 0; @@ -344,7 +344,7 @@ do { \ /* * Internal functions *******************************************************************************/ - + /** * print start banner */ @@ -810,7 +810,7 @@ iucv_register_program (__u8 pgmname[16], sizeof (new_handler->id.userid)); EBC_TOUPPER (new_handler->id.userid, sizeof (new_handler->id.userid)); - + if (pgmmask) { memcpy (new_handler->id.mask, pgmmask, sizeof (new_handler->id.mask)); @@ -1229,7 +1229,7 @@ iucv_purge (__u16 pathid, __u32 msgid, __u32 srccls, __u32 *audit) /* parm->ipaudit has only 3 bytes */ *audit >>= 8; } - + release_param(parm); iucv_debug(1, "b2f0_result = %ld", b2f0_result); @@ -2330,14 +2330,14 @@ iucv_do_int(iucv_GeneralInterrupt * int_buf) temp_buff1[j] &= (h->id.mask)[j]; temp_buff2[j] &= (h->id.mask)[j]; } - + iucv_dumpit("temp_buff1:", temp_buff1, sizeof(temp_buff1)); iucv_dumpit("temp_buff2", temp_buff2, sizeof(temp_buff2)); - + if (!memcmp (temp_buff1, temp_buff2, 24)) { - + iucv_debug(2, "found a matching handler"); break; @@ -2368,7 +2368,7 @@ iucv_do_int(iucv_GeneralInterrupt * int_buf) } else iucv_sever(int_buf->ippathid, no_listener); break; - + case 0x02: /*connection complete */ if (messagesDisabled) { iucv_setmask(~0); @@ -2387,7 +2387,7 @@ iucv_do_int(iucv_GeneralInterrupt * int_buf) } else iucv_sever(int_buf->ippathid, no_listener); break; - + case 0x03: /* connection severed */ if (messagesDisabled) { iucv_setmask(~0); @@ -2398,13 +2398,13 @@ iucv_do_int(iucv_GeneralInterrupt * int_buf) interrupt->ConnectionSevered( (iucv_ConnectionSevered *)int_buf, h->pgm_data); - + else iucv_sever (int_buf->ippathid, no_listener); } else iucv_sever(int_buf->ippathid, no_listener); break; - + case 0x04: /* connection quiesced */ if (messagesDisabled) { iucv_setmask(~0); @@ -2420,7 +2420,7 @@ iucv_do_int(iucv_GeneralInterrupt * int_buf) "ConnectionQuiesced not called"); } break; - + case 0x05: /* connection resumed */ if (messagesDisabled) { iucv_setmask(~0); @@ -2436,7 +2436,7 @@ iucv_do_int(iucv_GeneralInterrupt * int_buf) "ConnectionResumed not called"); } break; - + case 0x06: /* priority message complete */ case 0x07: /* nonpriority message complete */ if (h) { @@ -2449,7 +2449,7 @@ iucv_do_int(iucv_GeneralInterrupt * int_buf) "MessageComplete not called"); } break; - + case 0x08: /* priority message pending */ case 0x09: /* nonpriority message pending */ if (h) { @@ -2467,7 +2467,7 @@ iucv_do_int(iucv_GeneralInterrupt * int_buf) __FUNCTION__); break; } /* end switch */ - + iucv_debug(2, "exiting pathid %d, type %02X", int_buf->ippathid, int_buf->iptype); diff --git a/drivers/s390/net/iucv.h b/drivers/s390/net/iucv.h index 0c4644d..5b6b1b7 100644 --- a/drivers/s390/net/iucv.h +++ b/drivers/s390/net/iucv.h @@ -4,7 +4,7 @@ * * S390 version * Copyright (C) 2000 IBM Corporation - * Author(s):Alan Altmark (Alan_Altmark@us.ibm.com) + * Author(s):Alan Altmark (Alan_Altmark@us.ibm.com) * Xenia Tkatschow (xenia@us.ibm.com) * * @@ -16,17 +16,17 @@ * CP Programming Services book, also available on the web * thru www.ibm.com/s390/vm/pubs, manual # SC24-5760 * - * Definition of Return Codes - * -All positive return codes including zero are reflected back - * from CP except for iucv_register_program. The definition of each - * return code can be found in CP Programming Services book. - * Also available on the web thru www.ibm.com/s390/vm/pubs, manual # SC24-5760 - * - Return Code of: - * (-EINVAL) Invalid value - * (-ENOMEM) storage allocation failed + * Definition of Return Codes + * -All positive return codes including zero are reflected back + * from CP except for iucv_register_program. The definition of each + * return code can be found in CP Programming Services book. + * Also available on the web thru www.ibm.com/s390/vm/pubs, manual # SC24-5760 + * - Return Code of: + * (-EINVAL) Invalid value + * (-ENOMEM) storage allocation failed * pgmask defined in iucv_register_program will be set depending on input - * paramters. - * + * paramters. + * */ #include <linux/types.h> @@ -124,13 +124,13 @@ iucv_hex_dump(unsigned char *buf, size_t len) #define iucv_handle_t void * /* flags1: - * All flags are defined in the field IPFLAGS1 of each function - * and can be found in CP Programming Services. - * IPLOCAL - Indicates the connect can only be satisfied on the - * local system - * IPPRTY - Indicates a priority message - * IPQUSCE - Indicates you do not want to receive messages on a - * path until an iucv_resume is issued + * All flags are defined in the field IPFLAGS1 of each function + * and can be found in CP Programming Services. + * IPLOCAL - Indicates the connect can only be satisfied on the + * local system + * IPPRTY - Indicates a priority message + * IPQUSCE - Indicates you do not want to receive messages on a + * path until an iucv_resume is issued * IPRMDATA - Indicates that the message is in the parameter list */ #define IPLOCAL 0x01 @@ -154,14 +154,14 @@ iucv_hex_dump(unsigned char *buf, size_t len) #define AllInterrupts 0xf8 /* * Mapping of external interrupt buffers should be used with the corresponding - * interrupt types. - * Names: iucv_ConnectionPending -> connection pending + * interrupt types. + * Names: iucv_ConnectionPending -> connection pending * iucv_ConnectionComplete -> connection complete - * iucv_ConnectionSevered -> connection severed - * iucv_ConnectionQuiesced -> connection quiesced - * iucv_ConnectionResumed -> connection resumed - * iucv_MessagePending -> message pending - * iucv_MessageComplete -> message complete + * iucv_ConnectionSevered -> connection severed + * iucv_ConnectionQuiesced -> connection quiesced + * iucv_ConnectionResumed -> connection resumed + * iucv_MessagePending -> message pending + * iucv_MessageComplete -> message complete */ typedef struct { u16 ippathid; @@ -260,16 +260,16 @@ typedef struct { uchar res2[3]; } iucv_MessageComplete; -/* - * iucv_interrupt_ops_t: Is a vector of functions that handle - * IUCV interrupts. - * Parameter list: - * eib - is a pointer to a 40-byte area described - * with one of the structures above. - * pgm_data - this data is strictly for the - * interrupt handler that is passed by - * the application. This may be an address - * or token. +/* + * iucv_interrupt_ops_t: Is a vector of functions that handle + * IUCV interrupts. + * Parameter list: + * eib - is a pointer to a 40-byte area described + * with one of the structures above. + * pgm_data - this data is strictly for the + * interrupt handler that is passed by + * the application. This may be an address + * or token. */ typedef struct { void (*ConnectionPending) (iucv_ConnectionPending * eib, @@ -287,8 +287,8 @@ typedef struct { } iucv_interrupt_ops_t; /* - *iucv_array_t : Defines buffer array. - * Inside the array may be 31- bit addresses and 31-bit lengths. + *iucv_array_t : Defines buffer array. + * Inside the array may be 31- bit addresses and 31-bit lengths. */ typedef struct { u32 address; @@ -299,19 +299,19 @@ extern struct bus_type iucv_bus; extern struct device *iucv_root; /* -prototypes- */ -/* - * Name: iucv_register_program - * Purpose: Registers an application with IUCV - * Input: prmname - user identification +/* + * Name: iucv_register_program + * Purpose: Registers an application with IUCV + * Input: prmname - user identification * userid - machine identification * pgmmask - indicates which bits in the prmname and userid combined will be * used to determine who is given control - * ops - address of vector of interrupt handlers - * pgm_data- application data passed to interrupt handlers - * Output: NA - * Return: address of handler + * ops - address of vector of interrupt handlers + * pgm_data- application data passed to interrupt handlers + * Output: NA + * Return: address of handler * (0) - Error occurred, registration not completed. - * NOTE: Exact cause of failure will be recorded in syslog. + * NOTE: Exact cause of failure will be recorded in syslog. */ iucv_handle_t iucv_register_program (uchar pgmname[16], uchar userid[8], @@ -319,13 +319,13 @@ iucv_handle_t iucv_register_program (uchar pgmname[16], iucv_interrupt_ops_t * ops, void *pgm_data); -/* - * Name: iucv_unregister_program - * Purpose: Unregister application with IUCV - * Input: address of handler - * Output: NA - * Return: (0) - Normal return - * (-EINVAL) - Internal error, wild pointer +/* + * Name: iucv_unregister_program + * Purpose: Unregister application with IUCV + * Input: address of handler + * Output: NA + * Return: (0) - Normal return + * (-EINVAL) - Internal error, wild pointer */ int iucv_unregister_program (iucv_handle_t handle); @@ -333,7 +333,7 @@ int iucv_unregister_program (iucv_handle_t handle); * Name: iucv_accept * Purpose: This function is issued after the user receives a Connection Pending external * interrupt and now wishes to complete the IUCV communication path. - * Input: pathid - u16 , Path identification number + * Input: pathid - u16 , Path identification number * msglim_reqstd - u16, The number of outstanding messages requested. * user_data - uchar[16], Data specified by the iucv_connect function. * flags1 - int, Contains options for this path. @@ -358,34 +358,34 @@ int iucv_accept (u16 pathid, void *pgm_data, int *flags1_out, u16 * msglim); /* - * Name: iucv_connect + * Name: iucv_connect * Purpose: This function establishes an IUCV path. Although the connect may complete - * successfully, you are not able to use the path until you receive an IUCV - * Connection Complete external interrupt. - * Input: pathid - u16 *, Path identification number - * msglim_reqstd - u16, Number of outstanding messages requested - * user_data - uchar[16], 16-byte user data + * successfully, you are not able to use the path until you receive an IUCV + * Connection Complete external interrupt. + * Input: pathid - u16 *, Path identification number + * msglim_reqstd - u16, Number of outstanding messages requested + * user_data - uchar[16], 16-byte user data * userid - uchar[8], User identification - * system_name - uchar[8], 8-byte identifying the system name + * system_name - uchar[8], 8-byte identifying the system name * flags1 - int, Contains options for this path. * -IPPRTY - 0x20, Specifies if you want to send priority message. * -IPRMDATA - 0x80, Specifies whether your program can handle a message * in the parameter list. - * -IPQUSCE - 0x40, Specifies whether you want to quiesce the path being + * -IPQUSCE - 0x40, Specifies whether you want to quiesce the path being * established. - * -IPLOCAL - 0X01, Allows an application to force the partner to be on + * -IPLOCAL - 0X01, Allows an application to force the partner to be on * the local system. If local is specified then target class cannot be - * specified. + * specified. * flags1_out - int * Contains information about the path * - IPPRTY - 0x20, Indicates you may send priority messages. * msglim - * u16, Number of outstanding messages - * handle - iucv_handle_t, Address of handler - * pgm_data - void *, Application data passed to interrupt handlers + * handle - iucv_handle_t, Address of handler + * pgm_data - void *, Application data passed to interrupt handlers * Output: return code from CP IUCV call * rc - return code from iucv_declare_buffer - * -EINVAL - Invalid handle passed by application - * -EINVAL - Pathid address is NULL - * add_pathid_result - Return code from internal function add_pathid + * -EINVAL - Invalid handle passed by application + * -EINVAL - Pathid address is NULL + * add_pathid_result - Return code from internal function add_pathid */ int iucv_connect (u16 * pathid, @@ -397,16 +397,16 @@ int int *flags1_out, u16 * msglim, iucv_handle_t handle, void *pgm_data); -/* - * Name: iucv_purge - * Purpose: This function cancels a message that you have sent. - * Input: pathid - Path identification number. +/* + * Name: iucv_purge + * Purpose: This function cancels a message that you have sent. + * Input: pathid - Path identification number. * msgid - Specifies the message ID of the message to be purged. - * srccls - Specifies the source message class. - * Output: audit - Contains information about asynchronous error - * that may have affected the normal completion - * of this message. - * Return: Return code from CP IUCV call. + * srccls - Specifies the source message class. + * Output: audit - Contains information about asynchronous error + * that may have affected the normal completion + * of this message. + * Return: Return code from CP IUCV call. */ int iucv_purge (u16 pathid, u32 msgid, u32 srccls, __u32 *audit); /* @@ -426,38 +426,38 @@ ulong iucv_query_maxconn (void); */ ulong iucv_query_bufsize (void); -/* - * Name: iucv_quiesce - * Purpose: This function temporarily suspends incoming messages on an - * IUCV path. You can later reactivate the path by invoking - * the iucv_resume function. - * Input: pathid - Path identification number - * user_data - 16-bytes of user data - * Output: NA - * Return: Return code from CP IUCV call. +/* + * Name: iucv_quiesce + * Purpose: This function temporarily suspends incoming messages on an + * IUCV path. You can later reactivate the path by invoking + * the iucv_resume function. + * Input: pathid - Path identification number + * user_data - 16-bytes of user data + * Output: NA + * Return: Return code from CP IUCV call. */ int iucv_quiesce (u16 pathid, uchar user_data[16]); -/* - * Name: iucv_receive - * Purpose: This function receives messages that are being sent to you +/* + * Name: iucv_receive + * Purpose: This function receives messages that are being sent to you * over established paths. Data will be returned in buffer for length of * buflen. - * Input: - * pathid - Path identification number. - * buffer - Address of buffer to receive. - * buflen - Length of buffer to receive. - * msgid - Specifies the message ID. - * trgcls - Specifies target class. - * Output: + * Input: + * pathid - Path identification number. + * buffer - Address of buffer to receive. + * buflen - Length of buffer to receive. + * msgid - Specifies the message ID. + * trgcls - Specifies target class. + * Output: * flags1_out: int *, Contains information about this path. * IPNORPY - 0x10 Specifies this is a one-way message and no reply is - * expected. - * IPPRTY - 0x20 Specifies if you want to send priority message. + * expected. + * IPPRTY - 0x20 Specifies if you want to send priority message. * IPRMDATA - 0x80 specifies the data is contained in the parameter list * residual_buffer - address of buffer updated by the number * of bytes you have received. - * residual_length - + * residual_length - * Contains one of the following values, if the receive buffer is: * The same length as the message, this field is zero. * Longer than the message, this field contains the number of @@ -466,8 +466,8 @@ int iucv_quiesce (u16 pathid, uchar user_data[16]); * count (that is, the number of bytes remaining in the * message that does not fit into the buffer. In this * case b2f0_result = 5. - * Return: Return code from CP IUCV call. - * (-EINVAL) - buffer address is pointing to NULL + * Return: Return code from CP IUCV call. + * (-EINVAL) - buffer address is pointing to NULL */ int iucv_receive (u16 pathid, u32 msgid, @@ -477,16 +477,16 @@ int iucv_receive (u16 pathid, int *flags1_out, ulong * residual_buffer, ulong * residual_length); - /* - * Name: iucv_receive_array - * Purpose: This function receives messages that are being sent to you + /* + * Name: iucv_receive_array + * Purpose: This function receives messages that are being sent to you * over established paths. Data will be returned in first buffer for * length of first buffer. - * Input: pathid - Path identification number. + * Input: pathid - Path identification number. * msgid - specifies the message ID. * trgcls - Specifies target class. - * buffer - Address of array of buffers. - * buflen - Total length of buffers. + * buffer - Address of array of buffers. + * buflen - Total length of buffers. * Output: * flags1_out: int *, Contains information about this path. * IPNORPY - 0x10 Specifies this is a one-way message and no reply is @@ -504,8 +504,8 @@ int iucv_receive (u16 pathid, * count (that is, the number of bytes remaining in the * message that does not fit into the buffer. In this * case b2f0_result = 5. - * Return: Return code from CP IUCV call. - * (-EINVAL) - Buffer address is NULL. + * Return: Return code from CP IUCV call. + * (-EINVAL) - Buffer address is NULL. */ int iucv_receive_array (u16 pathid, u32 msgid, @@ -515,44 +515,44 @@ int iucv_receive_array (u16 pathid, int *flags1_out, ulong * residual_buffer, ulong * residual_length); -/* - * Name: iucv_reject - * Purpose: The reject function refuses a specified message. Between the - * time you are notified of a message and the time that you - * complete the message, the message may be rejected. - * Input: pathid - Path identification number. - * msgid - Specifies the message ID. - * trgcls - Specifies target class. - * Output: NA - * Return: Return code from CP IUCV call. +/* + * Name: iucv_reject + * Purpose: The reject function refuses a specified message. Between the + * time you are notified of a message and the time that you + * complete the message, the message may be rejected. + * Input: pathid - Path identification number. + * msgid - Specifies the message ID. + * trgcls - Specifies target class. + * Output: NA + * Return: Return code from CP IUCV call. */ int iucv_reject (u16 pathid, u32 msgid, u32 trgcls); -/* - * Name: iucv_reply - * Purpose: This function responds to the two-way messages that you - * receive. You must identify completely the message to - * which you wish to reply. ie, pathid, msgid, and trgcls. - * Input: pathid - Path identification number. - * msgid - Specifies the message ID. - * trgcls - Specifies target class. +/* + * Name: iucv_reply + * Purpose: This function responds to the two-way messages that you + * receive. You must identify completely the message to + * which you wish to reply. ie, pathid, msgid, and trgcls. + * Input: pathid - Path identification number. + * msgid - Specifies the message ID. + * trgcls - Specifies target class. * flags1 - Option for path. - * IPPRTY- 0x20, Specifies if you want to send priority message. - * buffer - Address of reply buffer. - * buflen - Length of reply buffer. - * Output: residual_buffer - Address of buffer updated by the number - * of bytes you have moved. + * IPPRTY- 0x20, Specifies if you want to send priority message. + * buffer - Address of reply buffer. + * buflen - Length of reply buffer. + * Output: residual_buffer - Address of buffer updated by the number + * of bytes you have moved. * residual_length - Contains one of the following values: * If the answer buffer is the same length as the reply, this field * contains zero. * If the answer buffer is longer than the reply, this field contains - * the number of bytes remaining in the buffer. + * the number of bytes remaining in the buffer. * If the answer buffer is shorter than the reply, this field contains * a residual count (that is, the number of bytes remianing in the * reply that does not fit into the buffer. In this * case b2f0_result = 5. - * Return: Return code from CP IUCV call. - * (-EINVAL) - Buffer address is NULL. + * Return: Return code from CP IUCV call. + * (-EINVAL) - Buffer address is NULL. */ int iucv_reply (u16 pathid, u32 msgid, @@ -561,20 +561,20 @@ int iucv_reply (u16 pathid, void *buffer, ulong buflen, ulong * residual_buffer, ulong * residual_length); -/* - * Name: iucv_reply_array - * Purpose: This function responds to the two-way messages that you - * receive. You must identify completely the message to - * which you wish to reply. ie, pathid, msgid, and trgcls. - * The array identifies a list of addresses and lengths of - * discontiguous buffers that contains the reply data. - * Input: pathid - Path identification number - * msgid - Specifies the message ID. - * trgcls - Specifies target class. +/* + * Name: iucv_reply_array + * Purpose: This function responds to the two-way messages that you + * receive. You must identify completely the message to + * which you wish to reply. ie, pathid, msgid, and trgcls. + * The array identifies a list of addresses and lengths of + * discontiguous buffers that contains the reply data. + * Input: pathid - Path identification number + * msgid - Specifies the message ID. + * trgcls - Specifies target class. * flags1 - Option for path. * IPPRTY- 0x20, Specifies if you want to send priority message. - * buffer - Address of array of reply buffers. - * buflen - Total length of reply buffers. + * buffer - Address of array of reply buffers. + * buflen - Total length of reply buffers. * Output: residual_buffer - Address of buffer which IUCV is currently working on. * residual_length - Contains one of the following values: * If the answer buffer is the same length as the reply, this field @@ -585,8 +585,8 @@ int iucv_reply (u16 pathid, * a residual count (that is, the number of bytes remianing in the * reply that does not fit into the buffer. In this * case b2f0_result = 5. - * Return: Return code from CP IUCV call. - * (-EINVAL) - Buffer address is NULL. + * Return: Return code from CP IUCV call. + * (-EINVAL) - Buffer address is NULL. */ int iucv_reply_array (u16 pathid, u32 msgid, @@ -596,77 +596,77 @@ int iucv_reply_array (u16 pathid, ulong buflen, ulong * residual_address, ulong * residual_length); -/* - * Name: iucv_reply_prmmsg - * Purpose: This function responds to the two-way messages that you - * receive. You must identify completely the message to - * which you wish to reply. ie, pathid, msgid, and trgcls. - * Prmmsg signifies the data is moved into the - * parameter list. - * Input: pathid - Path identification number. - * msgid - Specifies the message ID. - * trgcls - Specifies target class. +/* + * Name: iucv_reply_prmmsg + * Purpose: This function responds to the two-way messages that you + * receive. You must identify completely the message to + * which you wish to reply. ie, pathid, msgid, and trgcls. + * Prmmsg signifies the data is moved into the + * parameter list. + * Input: pathid - Path identification number. + * msgid - Specifies the message ID. + * trgcls - Specifies target class. * flags1 - Option for path. * IPPRTY- 0x20 Specifies if you want to send priority message. - * prmmsg - 8-bytes of data to be placed into the parameter. - * list. - * Output: NA - * Return: Return code from CP IUCV call. + * prmmsg - 8-bytes of data to be placed into the parameter. + * list. + * Output: NA + * Return: Return code from CP IUCV call. */ int iucv_reply_prmmsg (u16 pathid, u32 msgid, u32 trgcls, int flags1, uchar prmmsg[8]); -/* - * Name: iucv_resume - * Purpose: This function restores communications over a quiesced path - * Input: pathid - Path identification number. - * user_data - 16-bytes of user data. - * Output: NA - * Return: Return code from CP IUCV call. +/* + * Name: iucv_resume + * Purpose: This function restores communications over a quiesced path + * Input: pathid - Path identification number. + * user_data - 16-bytes of user data. + * Output: NA + * Return: Return code from CP IUCV call. */ int iucv_resume (u16 pathid, uchar user_data[16]); -/* - * Name: iucv_send - * Purpose: This function transmits data to another application. - * Data to be transmitted is in a buffer and this is a - * one-way message and the receiver will not reply to the - * message. - * Input: pathid - Path identification number. - * trgcls - Specifies target class. - * srccls - Specifies the source message class. - * msgtag - Specifies a tag to be associated with the message. +/* + * Name: iucv_send + * Purpose: This function transmits data to another application. + * Data to be transmitted is in a buffer and this is a + * one-way message and the receiver will not reply to the + * message. + * Input: pathid - Path identification number. + * trgcls - Specifies target class. + * srccls - Specifies the source message class. + * msgtag - Specifies a tag to be associated with the message. * flags1 - Option for path. * IPPRTY- 0x20 Specifies if you want to send priority message. - * buffer - Address of send buffer. - * buflen - Length of send buffer. - * Output: msgid - Specifies the message ID. - * Return: Return code from CP IUCV call. - * (-EINVAL) - Buffer address is NULL. + * buffer - Address of send buffer. + * buflen - Length of send buffer. + * Output: msgid - Specifies the message ID. + * Return: Return code from CP IUCV call. + * (-EINVAL) - Buffer address is NULL. */ int iucv_send (u16 pathid, u32 * msgid, u32 trgcls, u32 srccls, u32 msgtag, int flags1, void *buffer, ulong buflen); -/* - * Name: iucv_send_array - * Purpose: This function transmits data to another application. - * The contents of buffer is the address of the array of - * addresses and lengths of discontiguous buffers that hold - * the message text. This is a one-way message and the - * receiver will not reply to the message. - * Input: pathid - Path identification number. - * trgcls - Specifies target class. - * srccls - Specifies the source message class. +/* + * Name: iucv_send_array + * Purpose: This function transmits data to another application. + * The contents of buffer is the address of the array of + * addresses and lengths of discontiguous buffers that hold + * the message text. This is a one-way message and the + * receiver will not reply to the message. + * Input: pathid - Path identification number. + * trgcls - Specifies target class. + * srccls - Specifies the source message class. * msgtag - Specifies a tag to be associated witht the message. * flags1 - Option for path. - * IPPRTY- specifies if you want to send priority message. - * buffer - Address of array of send buffers. - * buflen - Total length of send buffers. - * Output: msgid - Specifies the message ID. - * Return: Return code from CP IUCV call. - * (-EINVAL) - Buffer address is NULL. + * IPPRTY- specifies if you want to send priority message. + * buffer - Address of array of send buffers. + * buflen - Total length of send buffers. + * Output: msgid - Specifies the message ID. + * Return: Return code from CP IUCV call. + * (-EINVAL) - Buffer address is NULL. */ int iucv_send_array (u16 pathid, u32 * msgid, @@ -675,48 +675,48 @@ int iucv_send_array (u16 pathid, u32 msgtag, int flags1, iucv_array_t * buffer, ulong buflen); -/* - * Name: iucv_send_prmmsg - * Purpose: This function transmits data to another application. - * Prmmsg specifies that the 8-bytes of data are to be moved - * into the parameter list. This is a one-way message and the - * receiver will not reply to the message. - * Input: pathid - Path identification number. - * trgcls - Specifies target class. - * srccls - Specifies the source message class. - * msgtag - Specifies a tag to be associated with the message. +/* + * Name: iucv_send_prmmsg + * Purpose: This function transmits data to another application. + * Prmmsg specifies that the 8-bytes of data are to be moved + * into the parameter list. This is a one-way message and the + * receiver will not reply to the message. + * Input: pathid - Path identification number. + * trgcls - Specifies target class. + * srccls - Specifies the source message class. + * msgtag - Specifies a tag to be associated with the message. * flags1 - Option for path. * IPPRTY- 0x20 specifies if you want to send priority message. - * prmmsg - 8-bytes of data to be placed into parameter list. - * Output: msgid - Specifies the message ID. - * Return: Return code from CP IUCV call. + * prmmsg - 8-bytes of data to be placed into parameter list. + * Output: msgid - Specifies the message ID. + * Return: Return code from CP IUCV call. */ int iucv_send_prmmsg (u16 pathid, u32 * msgid, u32 trgcls, u32 srccls, u32 msgtag, int flags1, uchar prmmsg[8]); -/* - * Name: iucv_send2way - * Purpose: This function transmits data to another application. - * Data to be transmitted is in a buffer. The receiver - * of the send is expected to reply to the message and - * a buffer is provided into which IUCV moves the reply - * to this message. - * Input: pathid - Path identification number. - * trgcls - Specifies target class. - * srccls - Specifies the source message class. - * msgtag - Specifies a tag associated with the message. +/* + * Name: iucv_send2way + * Purpose: This function transmits data to another application. + * Data to be transmitted is in a buffer. The receiver + * of the send is expected to reply to the message and + * a buffer is provided into which IUCV moves the reply + * to this message. + * Input: pathid - Path identification number. + * trgcls - Specifies target class. + * srccls - Specifies the source message class. + * msgtag - Specifies a tag associated with the message. * flags1 - Option for path. * IPPRTY- 0x20 Specifies if you want to send priority message. - * buffer - Address of send buffer. - * buflen - Length of send buffer. - * ansbuf - Address of buffer into which IUCV moves the reply of - * this message. - * anslen - Address of length of buffer. - * Output: msgid - Specifies the message ID. - * Return: Return code from CP IUCV call. - * (-EINVAL) - Buffer or ansbuf address is NULL. + * buffer - Address of send buffer. + * buflen - Length of send buffer. + * ansbuf - Address of buffer into which IUCV moves the reply of + * this message. + * anslen - Address of length of buffer. + * Output: msgid - Specifies the message ID. + * Return: Return code from CP IUCV call. + * (-EINVAL) - Buffer or ansbuf address is NULL. */ int iucv_send2way (u16 pathid, u32 * msgid, @@ -726,28 +726,28 @@ int iucv_send2way (u16 pathid, int flags1, void *buffer, ulong buflen, void *ansbuf, ulong anslen); -/* - * Name: iucv_send2way_array - * Purpose: This function transmits data to another application. - * The contents of buffer is the address of the array of - * addresses and lengths of discontiguous buffers that hold - * the message text. The receiver of the send is expected to - * reply to the message and a buffer is provided into which - * IUCV moves the reply to this message. - * Input: pathid - Path identification number. - * trgcls - Specifies target class. - * srccls - Specifies the source message class. - * msgtag - Specifies a tag to be associated with the message. +/* + * Name: iucv_send2way_array + * Purpose: This function transmits data to another application. + * The contents of buffer is the address of the array of + * addresses and lengths of discontiguous buffers that hold + * the message text. The receiver of the send is expected to + * reply to the message and a buffer is provided into which + * IUCV moves the reply to this message. + * Input: pathid - Path identification number. + * trgcls - Specifies target class. + * srccls - Specifies the source message class. + * msgtag - Specifies a tag to be associated with the message. * flags1 - Option for path. * IPPRTY- 0x20 Specifies if you want to send priority message. - * buffer - Sddress of array of send buffers. - * buflen - Total length of send buffers. - * ansbuf - Address of array of buffer into which IUCV moves the reply - * of this message. - * anslen - Address of length reply buffers. - * Output: msgid - Specifies the message ID. - * Return: Return code from CP IUCV call. - * (-EINVAL) - Buffer address is NULL. + * buffer - Sddress of array of send buffers. + * buflen - Total length of send buffers. + * ansbuf - Address of array of buffer into which IUCV moves the reply + * of this message. + * anslen - Address of length reply buffers. + * Output: msgid - Specifies the message ID. + * Return: Return code from CP IUCV call. + * (-EINVAL) - Buffer address is NULL. */ int iucv_send2way_array (u16 pathid, u32 * msgid, @@ -758,27 +758,27 @@ int iucv_send2way_array (u16 pathid, iucv_array_t * buffer, ulong buflen, iucv_array_t * ansbuf, ulong anslen); -/* - * Name: iucv_send2way_prmmsg - * Purpose: This function transmits data to another application. - * Prmmsg specifies that the 8-bytes of data are to be moved - * into the parameter list. This is a two-way message and the - * receiver of the message is expected to reply. A buffer - * is provided into which IUCV moves the reply to this - * message. - * Input: pathid - Rath identification number. - * trgcls - Specifies target class. - * srccls - Specifies the source message class. - * msgtag - Specifies a tag to be associated with the message. +/* + * Name: iucv_send2way_prmmsg + * Purpose: This function transmits data to another application. + * Prmmsg specifies that the 8-bytes of data are to be moved + * into the parameter list. This is a two-way message and the + * receiver of the message is expected to reply. A buffer + * is provided into which IUCV moves the reply to this + * message. + * Input: pathid - Rath identification number. + * trgcls - Specifies target class. + * srccls - Specifies the source message class. + * msgtag - Specifies a tag to be associated with the message. * flags1 - Option for path. * IPPRTY- 0x20 Specifies if you want to send priority message. - * prmmsg - 8-bytes of data to be placed in parameter list. - * ansbuf - Address of buffer into which IUCV moves the reply of + * prmmsg - 8-bytes of data to be placed in parameter list. + * ansbuf - Address of buffer into which IUCV moves the reply of * this message. - * anslen - Address of length of buffer. - * Output: msgid - Specifies the message ID. - * Return: Return code from CP IUCV call. - * (-EINVAL) - Buffer address is NULL. + * anslen - Address of length of buffer. + * Output: msgid - Specifies the message ID. + * Return: Return code from CP IUCV call. + * (-EINVAL) - Buffer address is NULL. */ int iucv_send2way_prmmsg (u16 pathid, u32 * msgid, @@ -788,29 +788,29 @@ int iucv_send2way_prmmsg (u16 pathid, ulong flags1, uchar prmmsg[8], void *ansbuf, ulong anslen); -/* - * Name: iucv_send2way_prmmsg_array - * Purpose: This function transmits data to another application. - * Prmmsg specifies that the 8-bytes of data are to be moved - * into the parameter list. This is a two-way message and the - * receiver of the message is expected to reply. A buffer - * is provided into which IUCV moves the reply to this - * message. The contents of ansbuf is the address of the - * array of addresses and lengths of discontiguous buffers - * that contain the reply. - * Input: pathid - Path identification number. - * trgcls - Specifies target class. - * srccls - Specifies the source message class. - * msgtag - Specifies a tag to be associated with the message. +/* + * Name: iucv_send2way_prmmsg_array + * Purpose: This function transmits data to another application. + * Prmmsg specifies that the 8-bytes of data are to be moved + * into the parameter list. This is a two-way message and the + * receiver of the message is expected to reply. A buffer + * is provided into which IUCV moves the reply to this + * message. The contents of ansbuf is the address of the + * array of addresses and lengths of discontiguous buffers + * that contain the reply. + * Input: pathid - Path identification number. + * trgcls - Specifies target class. + * srccls - Specifies the source message class. + * msgtag - Specifies a tag to be associated with the message. * flags1 - Option for path. * IPPRTY- 0x20 specifies if you want to send priority message. - * prmmsg - 8-bytes of data to be placed into the parameter list. + * prmmsg - 8-bytes of data to be placed into the parameter list. * ansbuf - Address of array of buffer into which IUCV moves the reply - * of this message. - * anslen - Address of length of reply buffers. - * Output: msgid - Specifies the message ID. - * Return: Return code from CP IUCV call. - * (-EINVAL) - Ansbuf address is NULL. + * of this message. + * anslen - Address of length of reply buffers. + * Output: msgid - Specifies the message ID. + * Return: Return code from CP IUCV call. + * (-EINVAL) - Ansbuf address is NULL. */ int iucv_send2way_prmmsg_array (u16 pathid, u32 * msgid, @@ -821,29 +821,29 @@ int iucv_send2way_prmmsg_array (u16 pathid, uchar prmmsg[8], iucv_array_t * ansbuf, ulong anslen); -/* - * Name: iucv_setmask - * Purpose: This function enables or disables the following IUCV - * external interruptions: Nonpriority and priority message - * interrupts, nonpriority and priority reply interrupts. +/* + * Name: iucv_setmask + * Purpose: This function enables or disables the following IUCV + * external interruptions: Nonpriority and priority message + * interrupts, nonpriority and priority reply interrupts. * Input: SetMaskFlag - options for interrupts - * 0x80 - Nonpriority_MessagePendingInterruptsFlag - * 0x40 - Priority_MessagePendingInterruptsFlag - * 0x20 - Nonpriority_MessageCompletionInterruptsFlag - * 0x10 - Priority_MessageCompletionInterruptsFlag + * 0x80 - Nonpriority_MessagePendingInterruptsFlag + * 0x40 - Priority_MessagePendingInterruptsFlag + * 0x20 - Nonpriority_MessageCompletionInterruptsFlag + * 0x10 - Priority_MessageCompletionInterruptsFlag * 0x08 - IUCVControlInterruptsFlag - * Output: NA - * Return: Return code from CP IUCV call. + * Output: NA + * Return: Return code from CP IUCV call. */ int iucv_setmask (int SetMaskFlag); -/* - * Name: iucv_sever - * Purpose: This function terminates an IUCV path. - * Input: pathid - Path identification number. - * user_data - 16-bytes of user data. - * Output: NA - * Return: Return code from CP IUCV call. - * (-EINVAL) - Interal error, wild pointer. +/* + * Name: iucv_sever + * Purpose: This function terminates an IUCV path. + * Input: pathid - Path identification number. + * user_data - 16-bytes of user data. + * Output: NA + * Return: Return code from CP IUCV call. + * (-EINVAL) - Interal error, wild pointer. */ int iucv_sever (u16 pathid, uchar user_data[16]); diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c index 5d6b7a5..f94419b 100644 --- a/drivers/s390/net/lcs.c +++ b/drivers/s390/net/lcs.c @@ -68,6 +68,7 @@ static void lcs_tasklet(unsigned long); static void lcs_start_kernel_thread(struct lcs_card *card); static void lcs_get_frames_cb(struct lcs_channel *, struct lcs_buffer *); static int lcs_send_delipm(struct lcs_card *, struct lcs_ipm_list *); +static int lcs_recovery(void *ptr); /** * Debug Facility Stuff @@ -429,12 +430,6 @@ lcs_setup_card(struct lcs_card *card) card->tx_buffer = NULL; card->tx_emitted = 0; - /* Initialize kernel thread task used for LGW commands. */ - INIT_WORK(&card->kernel_thread_starter, - (void *)lcs_start_kernel_thread,card); - card->thread_start_mask = 0; - card->thread_allowed_mask = 0; - card->thread_running_mask = 0; init_waitqueue_head(&card->wait_q); spin_lock_init(&card->lock); spin_lock_init(&card->ipm_lock); @@ -675,8 +670,9 @@ lcs_ready_buffer(struct lcs_channel *channel, struct lcs_buffer *buffer) int index, rc; LCS_DBF_TEXT(5, trace, "rdybuff"); - BUG_ON(buffer->state != BUF_STATE_LOCKED && - buffer->state != BUF_STATE_PROCESSED); + if (buffer->state != BUF_STATE_LOCKED && + buffer->state != BUF_STATE_PROCESSED) + BUG(); spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); buffer->state = BUF_STATE_READY; index = buffer - channel->iob; @@ -700,7 +696,8 @@ __lcs_processed_buffer(struct lcs_channel *channel, struct lcs_buffer *buffer) int index, prev, next; LCS_DBF_TEXT(5, trace, "prcsbuff"); - BUG_ON(buffer->state != BUF_STATE_READY); + if (buffer->state != BUF_STATE_READY) + BUG(); buffer->state = BUF_STATE_PROCESSED; index = buffer - channel->iob; prev = (index - 1) & (LCS_NUM_BUFFS - 1); @@ -732,8 +729,9 @@ lcs_release_buffer(struct lcs_channel *channel, struct lcs_buffer *buffer) unsigned long flags; LCS_DBF_TEXT(5, trace, "relbuff"); - BUG_ON(buffer->state != BUF_STATE_LOCKED && - buffer->state != BUF_STATE_PROCESSED); + if (buffer->state != BUF_STATE_LOCKED && + buffer->state != BUF_STATE_PROCESSED) + BUG(); spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); buffer->state = BUF_STATE_EMPTY; spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); @@ -1147,8 +1145,6 @@ list_modified: list_add_tail(&ipm->list, &card->ipm_list); } spin_unlock_irqrestore(&card->ipm_lock, flags); - if (card->state == DEV_STATE_UP) - netif_wake_queue(card->dev); } /** @@ -1231,17 +1227,17 @@ lcs_set_mc_addresses(struct lcs_card *card, struct in_device *in4_dev) if (ipm != NULL) continue; /* Address already in list. */ ipm = (struct lcs_ipm_list *) - kmalloc(sizeof(struct lcs_ipm_list), GFP_ATOMIC); + kzalloc(sizeof(struct lcs_ipm_list), GFP_ATOMIC); if (ipm == NULL) { PRINT_INFO("Not enough memory to add " "new multicast entry!\n"); break; } - memset(ipm, 0, sizeof(struct lcs_ipm_list)); memcpy(&ipm->ipm.mac_addr, buf, LCS_MAC_LENGTH); ipm->ipm.ip_addr = im4->multiaddr; ipm->ipm_state = LCS_IPM_STATE_SET_REQUIRED; spin_lock_irqsave(&card->ipm_lock, flags); + LCS_DBF_HEX(2,trace,&ipm->ipm.ip_addr,4); list_add(&ipm->list, &card->ipm_list); spin_unlock_irqrestore(&card->ipm_lock, flags); } @@ -1269,7 +1265,15 @@ lcs_register_mc_addresses(void *data) read_unlock(&in4_dev->mc_list_lock); in_dev_put(in4_dev); + netif_carrier_off(card->dev); + netif_tx_disable(card->dev); + wait_event(card->write.wait_q, + (card->write.state != CH_STATE_RUNNING)); lcs_fix_multicast_list(card); + if (card->state == DEV_STATE_UP) { + netif_carrier_on(card->dev); + netif_wake_queue(card->dev); + } out: lcs_clear_thread_running_bit(card, LCS_SET_MC_THREAD); return 0; @@ -1286,7 +1290,7 @@ lcs_set_multicast_list(struct net_device *dev) LCS_DBF_TEXT(4, trace, "setmulti"); card = (struct lcs_card *) dev->priv; - if (!lcs_set_thread_start_bit(card, LCS_SET_MC_THREAD)) + if (!lcs_set_thread_start_bit(card, LCS_SET_MC_THREAD)) schedule_work(&card->kernel_thread_starter); } @@ -1318,6 +1322,53 @@ lcs_check_irb_error(struct ccw_device *cdev, struct irb *irb) return PTR_ERR(irb); } +static int +lcs_get_problem(struct ccw_device *cdev, struct irb *irb) +{ + int dstat, cstat; + char *sense; + + sense = (char *) irb->ecw; + cstat = irb->scsw.cstat; + dstat = irb->scsw.dstat; + + if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK | + SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK | + SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) { + LCS_DBF_TEXT(2, trace, "CGENCHK"); + return 1; + } + if (dstat & DEV_STAT_UNIT_CHECK) { + if (sense[LCS_SENSE_BYTE_1] & + LCS_SENSE_RESETTING_EVENT) { + LCS_DBF_TEXT(2, trace, "REVIND"); + return 1; + } + if (sense[LCS_SENSE_BYTE_0] & + LCS_SENSE_CMD_REJECT) { + LCS_DBF_TEXT(2, trace, "CMDREJ"); + return 0; + } + if ((!sense[LCS_SENSE_BYTE_0]) && + (!sense[LCS_SENSE_BYTE_1]) && + (!sense[LCS_SENSE_BYTE_2]) && + (!sense[LCS_SENSE_BYTE_3])) { + LCS_DBF_TEXT(2, trace, "ZEROSEN"); + return 0; + } + LCS_DBF_TEXT(2, trace, "DGENCHK"); + return 1; + } + return 0; +} + +void +lcs_schedule_recovery(struct lcs_card *card) +{ + LCS_DBF_TEXT(2, trace, "startrec"); + if (!lcs_set_thread_start_bit(card, LCS_RECOVERY_THREAD)) + schedule_work(&card->kernel_thread_starter); +} /** * IRQ Handler for LCS channels @@ -1327,7 +1378,8 @@ lcs_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) { struct lcs_card *card; struct lcs_channel *channel; - int index; + int rc, index; + int cstat, dstat; if (lcs_check_irb_error(cdev, irb)) return; @@ -1338,17 +1390,30 @@ lcs_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) else channel = &card->write; + cstat = irb->scsw.cstat; + dstat = irb->scsw.dstat; LCS_DBF_TEXT_(5, trace, "Rint%s",cdev->dev.bus_id); LCS_DBF_TEXT_(5, trace, "%4x%4x",irb->scsw.cstat, irb->scsw.dstat); LCS_DBF_TEXT_(5, trace, "%4x%4x",irb->scsw.fctl, irb->scsw.actl); + /* Check for channel and device errors presented */ + rc = lcs_get_problem(cdev, irb); + if (rc || (dstat & DEV_STAT_UNIT_EXCEP)) { + PRINT_WARN("check on device %s, dstat=0x%X, cstat=0x%X \n", + cdev->dev.bus_id, dstat, cstat); + if (rc) { + lcs_schedule_recovery(card); + wake_up(&card->wait_q); + return; + } + } /* How far in the ccw chain have we processed? */ if ((channel->state != CH_STATE_INIT) && (irb->scsw.fctl & SCSW_FCTL_START_FUNC)) { - index = (struct ccw1 *) __va((addr_t) irb->scsw.cpa) + index = (struct ccw1 *) __va((addr_t) irb->scsw.cpa) - channel->ccws; if ((irb->scsw.actl & SCSW_ACTL_SUSPENDED) || - (irb->scsw.cstat | SCHN_STAT_PCI)) + (irb->scsw.cstat & SCHN_STAT_PCI)) /* Bloody io subsystem tells us lies about cpa... */ index = (index - 1) & (LCS_NUM_BUFFS - 1); while (channel->io_idx != index) { @@ -1367,7 +1432,6 @@ lcs_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) else if (irb->scsw.actl & SCSW_ACTL_SUSPENDED) /* CCW execution stopped on a suspend bit. */ channel->state = CH_STATE_SUSPENDED; - if (irb->scsw.fctl & SCSW_FCTL_HALT_FUNC) { if (irb->scsw.cc != 0) { ccw_device_halt(channel->ccwdev, (addr_t) channel); @@ -1376,7 +1440,6 @@ lcs_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) /* The channel has been stopped by halt_IO. */ channel->state = CH_STATE_HALTED; } - if (irb->scsw.fctl & SCSW_FCTL_CLEAR_FUNC) { channel->state = CH_STATE_CLEARED; } @@ -1452,7 +1515,7 @@ lcs_txbuffer_cb(struct lcs_channel *channel, struct lcs_buffer *buffer) lcs_release_buffer(channel, buffer); card = (struct lcs_card *) ((char *) channel - offsetof(struct lcs_card, write)); - if (netif_queue_stopped(card->dev)) + if (netif_queue_stopped(card->dev) && netif_carrier_ok(card->dev)) netif_wake_queue(card->dev); spin_lock(&card->lock); card->tx_emitted--; @@ -1488,6 +1551,10 @@ __lcs_start_xmit(struct lcs_card *card, struct sk_buff *skb, card->stats.tx_carrier_errors++; return 0; } + if (skb->protocol == htons(ETH_P_IPV6)) { + dev_kfree_skb(skb); + return 0; + } netif_stop_queue(card->dev); spin_lock(&card->lock); if (card->tx_buffer != NULL && @@ -1633,30 +1700,6 @@ lcs_detect(struct lcs_card *card) } /** - * reset card - */ -static int -lcs_resetcard(struct lcs_card *card) -{ - int retries; - - LCS_DBF_TEXT(2, trace, "rescard"); - for (retries = 0; retries < 10; retries++) { - if (lcs_detect(card) == 0) { - netif_wake_queue(card->dev); - card->state = DEV_STATE_UP; - PRINT_INFO("LCS device %s successfully restarted!\n", - card->dev->name); - return 0; - } - msleep(3000); - } - PRINT_ERR("Error in Reseting LCS card!\n"); - return -EIO; -} - - -/** * LCS Stop card */ static int @@ -1680,126 +1723,18 @@ lcs_stopcard(struct lcs_card *card) } /** - * LGW initiated commands - */ -static int -lcs_lgw_startlan_thread(void *data) -{ - struct lcs_card *card; - - card = (struct lcs_card *) data; - daemonize("lgwstpln"); - - if (!lcs_do_run_thread(card, LCS_STARTLAN_THREAD)) - return 0; - LCS_DBF_TEXT(4, trace, "lgwstpln"); - if (card->dev) - netif_stop_queue(card->dev); - if (lcs_startlan(card) == 0) { - netif_wake_queue(card->dev); - card->state = DEV_STATE_UP; - PRINT_INFO("LCS Startlan for device %s succeeded!\n", - card->dev->name); - - } else - PRINT_ERR("LCS Startlan for device %s failed!\n", - card->dev->name); - lcs_clear_thread_running_bit(card, LCS_STARTLAN_THREAD); - return 0; -} - -/** - * Send startup command initiated by Lan Gateway - */ -static int -lcs_lgw_startup_thread(void *data) -{ - int rc; - - struct lcs_card *card; - - card = (struct lcs_card *) data; - daemonize("lgwstaln"); - - if (!lcs_do_run_thread(card, LCS_STARTUP_THREAD)) - return 0; - LCS_DBF_TEXT(4, trace, "lgwstaln"); - if (card->dev) - netif_stop_queue(card->dev); - rc = lcs_send_startup(card, LCS_INITIATOR_LGW); - if (rc != 0) { - PRINT_ERR("Startup for LCS device %s initiated " \ - "by LGW failed!\nReseting card ...\n", - card->dev->name); - /* do a card reset */ - rc = lcs_resetcard(card); - if (rc == 0) - goto Done; - } - rc = lcs_startlan(card); - if (rc == 0) { - netif_wake_queue(card->dev); - card->state = DEV_STATE_UP; - } -Done: - if (rc == 0) - PRINT_INFO("LCS Startup for device %s succeeded!\n", - card->dev->name); - else - PRINT_ERR("LCS Startup for device %s failed!\n", - card->dev->name); - lcs_clear_thread_running_bit(card, LCS_STARTUP_THREAD); - return 0; -} - - -/** - * send stoplan command initiated by Lan Gateway - */ -static int -lcs_lgw_stoplan_thread(void *data) -{ - struct lcs_card *card; - int rc; - - card = (struct lcs_card *) data; - daemonize("lgwstop"); - - if (!lcs_do_run_thread(card, LCS_STOPLAN_THREAD)) - return 0; - LCS_DBF_TEXT(4, trace, "lgwstop"); - if (card->dev) - netif_stop_queue(card->dev); - if (lcs_send_stoplan(card, LCS_INITIATOR_LGW) == 0) - PRINT_INFO("Stoplan for %s initiated by LGW succeeded!\n", - card->dev->name); - else - PRINT_ERR("Stoplan %s initiated by LGW failed!\n", - card->dev->name); - /*Try to reset the card, stop it on failure */ - rc = lcs_resetcard(card); - if (rc != 0) - rc = lcs_stopcard(card); - lcs_clear_thread_running_bit(card, LCS_STOPLAN_THREAD); - return rc; -} - -/** * Kernel Thread helper functions for LGW initiated commands */ static void lcs_start_kernel_thread(struct lcs_card *card) { LCS_DBF_TEXT(5, trace, "krnthrd"); - if (lcs_do_start_thread(card, LCS_STARTUP_THREAD)) - kernel_thread(lcs_lgw_startup_thread, (void *) card, SIGCHLD); - if (lcs_do_start_thread(card, LCS_STARTLAN_THREAD)) - kernel_thread(lcs_lgw_startlan_thread, (void *) card, SIGCHLD); - if (lcs_do_start_thread(card, LCS_STOPLAN_THREAD)) - kernel_thread(lcs_lgw_stoplan_thread, (void *) card, SIGCHLD); + if (lcs_do_start_thread(card, LCS_RECOVERY_THREAD)) + kernel_thread(lcs_recovery, (void *) card, SIGCHLD); #ifdef CONFIG_IP_MULTICAST if (lcs_do_start_thread(card, LCS_SET_MC_THREAD)) - kernel_thread(lcs_register_mc_addresses, (void *) card, SIGCHLD); + kernel_thread(lcs_register_mc_addresses, + (void *) card, SIGCHLD); #endif } @@ -1813,19 +1748,14 @@ lcs_get_control(struct lcs_card *card, struct lcs_cmd *cmd) if (cmd->initiator == LCS_INITIATOR_LGW) { switch(cmd->cmd_code) { case LCS_CMD_STARTUP: - if (!lcs_set_thread_start_bit(card, - LCS_STARTUP_THREAD)) - schedule_work(&card->kernel_thread_starter); - break; case LCS_CMD_STARTLAN: - if (!lcs_set_thread_start_bit(card, - LCS_STARTLAN_THREAD)) - schedule_work(&card->kernel_thread_starter); + lcs_schedule_recovery(card); break; case LCS_CMD_STOPLAN: - if (!lcs_set_thread_start_bit(card, - LCS_STOPLAN_THREAD)) - schedule_work(&card->kernel_thread_starter); + PRINT_WARN("Stoplan for %s initiated by LGW.\n", + card->dev->name); + if (card->dev) + netif_carrier_off(card->dev); break; default: PRINT_INFO("UNRECOGNIZED LGW COMMAND\n"); @@ -1941,8 +1871,11 @@ lcs_stop_device(struct net_device *dev) LCS_DBF_TEXT(2, trace, "stopdev"); card = (struct lcs_card *) dev->priv; - netif_stop_queue(dev); + netif_carrier_off(dev); + netif_tx_disable(dev); dev->flags &= ~IFF_UP; + wait_event(card->write.wait_q, + (card->write.state != CH_STATE_RUNNING)); rc = lcs_stopcard(card); if (rc) PRINT_ERR("Try it again!\n "); @@ -1968,6 +1901,7 @@ lcs_open_device(struct net_device *dev) } else { dev->flags |= IFF_UP; + netif_carrier_on(dev); netif_wake_queue(dev); card->state = DEV_STATE_UP; } @@ -2059,10 +1993,31 @@ lcs_timeout_store (struct device *dev, struct device_attribute *attr, const char DEVICE_ATTR(lancmd_timeout, 0644, lcs_timeout_show, lcs_timeout_store); +static ssize_t +lcs_dev_recover_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct lcs_card *card = dev->driver_data; + char *tmp; + int i; + + if (!card) + return -EINVAL; + if (card->state != DEV_STATE_UP) + return -EPERM; + i = simple_strtoul(buf, &tmp, 16); + if (i == 1) + lcs_schedule_recovery(card); + return count; +} + +static DEVICE_ATTR(recover, 0200, NULL, lcs_dev_recover_store); + static struct attribute * lcs_attrs[] = { &dev_attr_portno.attr, &dev_attr_type.attr, &dev_attr_lancmd_timeout.attr, + &dev_attr_recover.attr, NULL, }; @@ -2099,6 +2054,12 @@ lcs_probe_device(struct ccwgroup_device *ccwgdev) ccwgdev->dev.driver_data = card; ccwgdev->cdev[0]->handler = lcs_irq; ccwgdev->cdev[1]->handler = lcs_irq; + card->gdev = ccwgdev; + INIT_WORK(&card->kernel_thread_starter, + (void *) lcs_start_kernel_thread, card); + card->thread_start_mask = 0; + card->thread_allowed_mask = 0; + card->thread_running_mask = 0; return 0; } @@ -2200,6 +2161,7 @@ netdev_out: if (recover_state == DEV_STATE_RECOVER) { lcs_set_multicast_list(card->dev); card->dev->flags |= IFF_UP; + netif_carrier_on(card->dev); netif_wake_queue(card->dev); card->state = DEV_STATE_UP; } else { @@ -2229,7 +2191,7 @@ out: * lcs_shutdown_device, called when setting the group device offline. */ static int -lcs_shutdown_device(struct ccwgroup_device *ccwgdev) +__lcs_shutdown_device(struct ccwgroup_device *ccwgdev, int recovery_mode) { struct lcs_card *card; enum lcs_dev_states recover_state; @@ -2239,9 +2201,11 @@ lcs_shutdown_device(struct ccwgroup_device *ccwgdev) card = (struct lcs_card *)ccwgdev->dev.driver_data; if (!card) return -ENODEV; - lcs_set_allowed_threads(card, 0); - if (lcs_wait_for_threads(card, LCS_SET_MC_THREAD)) - return -ERESTARTSYS; + if (recovery_mode == 0) { + lcs_set_allowed_threads(card, 0); + if (lcs_wait_for_threads(card, LCS_SET_MC_THREAD)) + return -ERESTARTSYS; + } LCS_DBF_HEX(3, setup, &card, sizeof(void*)); recover_state = card->state; @@ -2256,6 +2220,43 @@ lcs_shutdown_device(struct ccwgroup_device *ccwgdev) return 0; } +static int +lcs_shutdown_device(struct ccwgroup_device *ccwgdev) +{ + return __lcs_shutdown_device(ccwgdev, 0); +} + +/** + * drive lcs recovery after startup and startlan initiated by Lan Gateway + */ +static int +lcs_recovery(void *ptr) +{ + struct lcs_card *card; + struct ccwgroup_device *gdev; + int rc; + + card = (struct lcs_card *) ptr; + daemonize("lcs_recover"); + + LCS_DBF_TEXT(4, trace, "recover1"); + if (!lcs_do_run_thread(card, LCS_RECOVERY_THREAD)) + return 0; + LCS_DBF_TEXT(4, trace, "recover2"); + gdev = card->gdev; + PRINT_WARN("Recovery of device %s started...\n", gdev->dev.bus_id); + rc = __lcs_shutdown_device(gdev, 1); + rc = lcs_new_device(gdev); + if (!rc) + PRINT_INFO("Device %s successfully recovered!\n", + card->dev->name); + else + PRINT_INFO("Device %s could not be recovered!\n", + card->dev->name); + lcs_clear_thread_running_bit(card, LCS_RECOVERY_THREAD); + return 0; +} + /** * lcs_remove_device, free buffers and card */ diff --git a/drivers/s390/net/lcs.h b/drivers/s390/net/lcs.h index 2fad5e4..9314393 100644 --- a/drivers/s390/net/lcs.h +++ b/drivers/s390/net/lcs.h @@ -73,13 +73,17 @@ do { \ /** * LCS sense byte definitions */ +#define LCS_SENSE_BYTE_0 0 +#define LCS_SENSE_BYTE_1 1 +#define LCS_SENSE_BYTE_2 2 +#define LCS_SENSE_BYTE_3 3 #define LCS_SENSE_INTERFACE_DISCONNECT 0x01 #define LCS_SENSE_EQUIPMENT_CHECK 0x10 #define LCS_SENSE_BUS_OUT_CHECK 0x20 #define LCS_SENSE_INTERVENTION_REQUIRED 0x40 #define LCS_SENSE_CMD_REJECT 0x80 -#define LCS_SENSE_RESETTING_EVENT 0x0080 -#define LCS_SENSE_DEVICE_ONLINE 0x0020 +#define LCS_SENSE_RESETTING_EVENT 0x80 +#define LCS_SENSE_DEVICE_ONLINE 0x20 /** * LCS packet type definitions @@ -152,10 +156,9 @@ enum lcs_dev_states { enum lcs_threads { LCS_SET_MC_THREAD = 1, - LCS_STARTLAN_THREAD = 2, - LCS_STOPLAN_THREAD = 4, - LCS_STARTUP_THREAD = 8, + LCS_RECOVERY_THREAD = 2, }; + /** * LCS struct declarations */ @@ -286,6 +289,7 @@ struct lcs_card { struct net_device_stats stats; unsigned short (*lan_type_trans)(struct sk_buff *skb, struct net_device *dev); + struct ccwgroup_device *gdev; struct lcs_channel read; struct lcs_channel write; struct lcs_buffer *tx_buffer; diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c index 260a93c..b452cc1 100644 --- a/drivers/s390/net/netiucv.c +++ b/drivers/s390/net/netiucv.c @@ -30,7 +30,7 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * */ - + #undef DEBUG #include <linux/module.h> @@ -65,7 +65,7 @@ MODULE_AUTHOR ("(C) 2001 IBM Corporation by Fritz Elfert (felfert@millenux.com)"); MODULE_DESCRIPTION ("Linux for S/390 IUCV network driver"); - + #define PRINTK_HEADER " iucv: " /* for debugging */ static struct device_driver netiucv_driver = { @@ -202,7 +202,7 @@ netiucv_printname(char *name) *p = '\0'; return tmp; } - + /** * States of the interface statemachine. */ @@ -244,7 +244,7 @@ static const char *dev_event_names[] = { "Connection up", "Connection down", }; - + /** * Events of the connection statemachine */ @@ -364,7 +364,7 @@ static const char *conn_state_names[] = { "Connect error", }; - + /** * Debug Facility Stuff */ @@ -516,7 +516,7 @@ static void fsm_action_nop(fsm_instance *fi, int event, void *arg) { } - + /** * Actions of the connection statemachine *****************************************************************************/ @@ -993,7 +993,7 @@ static const fsm_node conn_fsm[] = { static const int CONN_FSM_LEN = sizeof(conn_fsm) / sizeof(fsm_node); - + /** * Actions for interface - statemachine. *****************************************************************************/ @@ -1182,7 +1182,7 @@ netiucv_transmit_skb(struct iucv_connection *conn, struct sk_buff *skb) { fsm_newstate(conn->fsm, CONN_STATE_TX); conn->prof.send_stamp = xtime; - + rc = iucv_send(conn->pathid, NULL, 0, 0, 1 /* single_flag */, 0, nskb->data, nskb->len); /* Shut up, gcc! nskb is always below 2G. */ @@ -1220,7 +1220,7 @@ netiucv_transmit_skb(struct iucv_connection *conn, struct sk_buff *skb) { return rc; } - + /** * Interface API for upper network layers *****************************************************************************/ @@ -1291,7 +1291,7 @@ static int netiucv_tx(struct sk_buff *skb, struct net_device *dev) /** * If connection is not running, try to restart it - * and throw away packet. + * and throw away packet. */ if (fsm_getstate(privptr->fsm) != DEV_STATE_RUNNING) { fsm_event(privptr->fsm, DEV_EVENT_START, dev); @@ -1538,7 +1538,7 @@ static ssize_t maxcq_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct netiucv_priv *priv = dev->driver_data; - + IUCV_DBF_TEXT(trace, 4, __FUNCTION__); priv->conn->prof.maxcqueue = 0; return count; @@ -1559,7 +1559,7 @@ static ssize_t sdoio_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct netiucv_priv *priv = dev->driver_data; - + IUCV_DBF_TEXT(trace, 4, __FUNCTION__); priv->conn->prof.doios_single = 0; return count; @@ -1580,7 +1580,7 @@ static ssize_t mdoio_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct netiucv_priv *priv = dev->driver_data; - + IUCV_DBF_TEXT(trace, 5, __FUNCTION__); priv->conn->prof.doios_multi = 0; return count; @@ -1601,7 +1601,7 @@ static ssize_t txlen_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct netiucv_priv *priv = dev->driver_data; - + IUCV_DBF_TEXT(trace, 4, __FUNCTION__); priv->conn->prof.txlen = 0; return count; @@ -1622,7 +1622,7 @@ static ssize_t txtime_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct netiucv_priv *priv = dev->driver_data; - + IUCV_DBF_TEXT(trace, 4, __FUNCTION__); priv->conn->prof.tx_time = 0; return count; @@ -2000,7 +2000,7 @@ conn_write(struct device_driver *drv, const char *buf, size_t count) } PRINT_INFO("%s: '%s'\n", dev->name, netiucv_printname(username)); - + return count; out_free_ndev: @@ -2099,7 +2099,7 @@ static int __init netiucv_init(void) { int ret; - + ret = iucv_register_dbf_views(); if (ret) { PRINT_WARN("netiucv_init failed, " @@ -2128,7 +2128,7 @@ netiucv_init(void) } return ret; } - + module_init(netiucv_init); module_exit(netiucv_exit); MODULE_LICENSE("GPL"); diff --git a/drivers/s390/net/qeth.h b/drivers/s390/net/qeth.h index 4df0fcd..619f4a0 100644 --- a/drivers/s390/net/qeth.h +++ b/drivers/s390/net/qeth.h @@ -376,7 +376,7 @@ struct qeth_hdr_osn { __u8 reserved3[18]; __u32 ccid; } __attribute__ ((packed)); - + struct qeth_hdr { union { struct qeth_hdr_layer2 l2; @@ -825,7 +825,7 @@ struct qeth_card { int use_hard_stop; int (*orig_hard_header)(struct sk_buff *,struct net_device *, unsigned short,void *,void *,unsigned); - struct qeth_osn_info osn_info; + struct qeth_osn_info osn_info; }; struct qeth_card_list_struct { @@ -944,7 +944,7 @@ qeth_get_netdev_flags(struct qeth_card *card) return 0; switch (card->info.type) { case QETH_CARD_TYPE_IQD: - case QETH_CARD_TYPE_OSN: + case QETH_CARD_TYPE_OSN: return IFF_NOARP; #ifdef CONFIG_QETH_IPV6 default: @@ -981,7 +981,7 @@ static inline int qeth_get_max_mtu_for_card(int cardtype) { switch (cardtype) { - + case QETH_CARD_TYPE_UNKNOWN: case QETH_CARD_TYPE_OSAE: case QETH_CARD_TYPE_OSN: @@ -1097,9 +1097,9 @@ qeth_string_to_ipaddr4(const char *buf, __u8 *addr) int count = 0, rc = 0; int in[4]; - rc = sscanf(buf, "%d.%d.%d.%d%n", + rc = sscanf(buf, "%d.%d.%d.%d%n", &in[0], &in[1], &in[2], &in[3], &count); - if (rc != 4 || count) + if (rc != 4 || count<=0) return -EINVAL; for (count = 0; count < 4; count++) { if (in[count] > 255) @@ -1131,7 +1131,7 @@ qeth_string_to_ipaddr6(const char *buf, __u8 *addr) cnt = out = found = save_cnt = num2 = 0; end = start = (char *) buf; - in = (__u16 *) addr; + in = (__u16 *) addr; memset(in, 0, 16); while (end) { end = strchr(end,':'); @@ -1139,7 +1139,7 @@ qeth_string_to_ipaddr6(const char *buf, __u8 *addr) end = (char *)buf + (strlen(buf)); out = 1; } - if ((end - start)) { + if ((end - start)) { memset(num, 0, 5); memcpy(num, start, end - start); if (!qeth_isxdigit(num)) @@ -1241,5 +1241,5 @@ qeth_osn_register(unsigned char *read_dev_no, extern void qeth_osn_deregister(struct net_device *); - + #endif /* __QETH_H__ */ diff --git a/drivers/s390/net/qeth_eddp.c b/drivers/s390/net/qeth_eddp.c index 44e226f..0bab60a 100644 --- a/drivers/s390/net/qeth_eddp.c +++ b/drivers/s390/net/qeth_eddp.c @@ -81,7 +81,7 @@ void qeth_eddp_buf_release_contexts(struct qeth_qdio_out_buffer *buf) { struct qeth_eddp_context_reference *ref; - + QETH_DBF_TEXT(trace, 6, "eddprctx"); while (!list_empty(&buf->ctx_list)){ ref = list_entry(buf->ctx_list.next, @@ -135,7 +135,7 @@ qeth_eddp_fill_buffer(struct qeth_qdio_out_q *queue, "buffer!\n"); goto out; } - } + } /* check if the whole next skb fits into current buffer */ if ((QETH_MAX_BUFFER_ELEMENTS(queue->card) - buf->next_element_to_fill) @@ -148,7 +148,7 @@ qeth_eddp_fill_buffer(struct qeth_qdio_out_q *queue, * and increment ctx's refcnt */ must_refcnt = 1; continue; - } + } if (must_refcnt){ must_refcnt = 0; if (qeth_eddp_buf_ref_context(buf, ctx)){ @@ -266,7 +266,7 @@ qeth_eddp_copy_data_tcp(char *dst, struct qeth_eddp_data *eddp, int len, int left_in_frag; int copy_len; u8 *src; - + QETH_DBF_TEXT(trace, 5, "eddpcdtc"); if (skb_shinfo(eddp->skb)->nr_frags == 0) { memcpy(dst, eddp->skb->data + eddp->skb_offset, len); @@ -408,7 +408,7 @@ __qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx, struct tcphdr *tcph; int data_len; u32 hcsum; - + QETH_DBF_TEXT(trace, 5, "eddpftcp"); eddp->skb_offset = sizeof(struct qeth_hdr) + eddp->nhl + eddp->thl; if (eddp->qh.hdr.l2.id == QETH_HEADER_TYPE_LAYER2) { @@ -465,13 +465,13 @@ __qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx, eddp->th.tcp.h.seq += data_len; } } - + static inline int qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx, struct sk_buff *skb, struct qeth_hdr *qhdr) { struct qeth_eddp_data *eddp = NULL; - + QETH_DBF_TEXT(trace, 5, "eddpficx"); /* create our segmentation headers and copy original headers */ if (skb->protocol == ETH_P_IP) @@ -512,7 +512,7 @@ qeth_eddp_calc_num_pages(struct qeth_eddp_context *ctx, struct sk_buff *skb, int hdr_len) { int skbs_per_page; - + QETH_DBF_TEXT(trace, 5, "eddpcanp"); /* can we put multiple skbs in one page? */ skbs_per_page = PAGE_SIZE / (skb_shinfo(skb)->tso_size + hdr_len); @@ -588,7 +588,7 @@ qeth_eddp_create_context_tcp(struct qeth_card *card, struct sk_buff *skb, struct qeth_hdr *qhdr) { struct qeth_eddp_context *ctx = NULL; - + QETH_DBF_TEXT(trace, 5, "creddpct"); if (skb->protocol == ETH_P_IP) ctx = qeth_eddp_create_context_generic(card, skb, diff --git a/drivers/s390/net/qeth_fs.h b/drivers/s390/net/qeth_fs.h index e422b41..61faf05 100644 --- a/drivers/s390/net/qeth_fs.h +++ b/drivers/s390/net/qeth_fs.h @@ -42,7 +42,7 @@ qeth_create_device_attributes_osn(struct device *dev); extern void qeth_remove_device_attributes_osn(struct device *dev); - + extern int qeth_create_driver_attributes(void); diff --git a/drivers/s390/net/qeth_main.c b/drivers/s390/net/qeth_main.c index b3c6e79..9e671a4 100644 --- a/drivers/s390/net/qeth_main.c +++ b/drivers/s390/net/qeth_main.c @@ -513,7 +513,7 @@ __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode) QETH_DBF_TEXT(setup, 3, "setoffl"); QETH_DBF_HEX(setup, 3, &card, sizeof(void *)); - + if (card->dev && netif_carrier_ok(card->dev)) netif_carrier_off(card->dev); recover_flag = card->state; @@ -604,13 +604,13 @@ __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo, list_for_each_entry(addr, &card->ip_list, entry) { if (card->options.layer2) { if ((addr->type == todo->type) && - (memcmp(&addr->mac, &todo->mac, + (memcmp(&addr->mac, &todo->mac, OSA_ADDR_LEN) == 0)) { found = 1; break; } continue; - } + } if ((addr->proto == QETH_PROT_IPV4) && (todo->proto == QETH_PROT_IPV4) && (addr->type == todo->type) && @@ -694,13 +694,13 @@ __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add) if (card->options.layer2) { if ((tmp->type == addr->type) && (tmp->is_multicast == addr->is_multicast) && - (memcmp(&tmp->mac, &addr->mac, + (memcmp(&tmp->mac, &addr->mac, OSA_ADDR_LEN) == 0)) { found = 1; break; } continue; - } + } if ((tmp->proto == QETH_PROT_IPV4) && (addr->proto == QETH_PROT_IPV4) && (tmp->type == addr->type) && @@ -1173,7 +1173,7 @@ qeth_determine_card_type(struct qeth_card *card) "due to hardware limitations!\n"); card->qdio.no_out_queues = 1; card->qdio.default_out_queue = 0; - } + } return 0; } i++; @@ -1198,7 +1198,7 @@ qeth_probe_device(struct ccwgroup_device *gdev) return -ENODEV; QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id); - + card = qeth_alloc_card(); if (!card) { put_device(dev); @@ -1220,7 +1220,7 @@ qeth_probe_device(struct ccwgroup_device *gdev) put_device(dev); qeth_free_card(card); return rc; - } + } if ((rc = qeth_setup_card(card))){ QETH_DBF_TEXT_(setup, 2, "2err%d", rc); put_device(dev); @@ -1843,7 +1843,7 @@ struct qeth_cmd_buffer *iob) &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH); QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN); } - + static int qeth_send_control_data(struct qeth_card *card, int len, struct qeth_cmd_buffer *iob, @@ -1937,7 +1937,7 @@ qeth_osn_send_control_data(struct qeth_card *card, int len, wake_up(&card->wait_q); } return rc; -} +} static inline void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, @@ -1966,7 +1966,7 @@ qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); return qeth_osn_send_control_data(card, s1, iob); } - + static int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, int (*reply_cb) @@ -2579,7 +2579,7 @@ qeth_process_inbound_buffer(struct qeth_card *card, skb->dev = card->dev; if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2) vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr); - else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3) + else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3) qeth_rebuild_skb(card, skb, hdr); else { /*in case of OSN*/ skb_push(skb, sizeof(struct qeth_hdr)); @@ -2763,7 +2763,7 @@ qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status, index = i % QDIO_MAX_BUFFERS_PER_Q; buffer = &card->qdio.in_q->bufs[index]; if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) && - qeth_check_qdio_errors(buffer->buffer, + qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err,"qinerr"))) qeth_process_inbound_buffer(card, buffer, index); /* clear buffer and give back to hardware */ @@ -3187,7 +3187,7 @@ qeth_alloc_qdio_buffers(struct qeth_card *card) if (card->qdio.state == QETH_QDIO_ALLOCATED) return 0; - card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), + card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), GFP_KERNEL|GFP_DMA); if (!card->qdio.in_q) return - ENOMEM; @@ -3476,7 +3476,7 @@ qeth_halt_channels(struct qeth_card *card) rc3 = qeth_halt_channel(&card->data); if (rc1) return rc1; - if (rc2) + if (rc2) return rc2; return rc3; } @@ -3491,7 +3491,7 @@ qeth_clear_channels(struct qeth_card *card) rc3 = qeth_clear_channel(&card->data); if (rc1) return rc1; - if (rc2) + if (rc2) return rc2; return rc3; } @@ -3798,10 +3798,10 @@ qeth_open(struct net_device *dev) QETH_DBF_TEXT(trace,4,"nomacadr"); return -EPERM; } - card->dev->flags |= IFF_UP; - netif_start_queue(dev); card->data.state = CH_STATE_UP; card->state = CARD_STATE_UP; + card->dev->flags |= IFF_UP; + netif_start_queue(dev); if (!card->lan_online && netif_carrier_ok(dev)) netif_carrier_off(dev); @@ -3817,7 +3817,7 @@ qeth_stop(struct net_device *dev) card = (struct qeth_card *) dev->priv; - netif_stop_queue(dev); + netif_tx_disable(dev); card->dev->flags &= ~IFF_UP; if (card->state == CARD_STATE_UP) card->state = CARD_STATE_SOFTSETUP; @@ -3958,7 +3958,7 @@ qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb, #endif *hdr = (struct qeth_hdr *) qeth_push_skb(card, skb, sizeof(struct qeth_hdr)); - if (hdr == NULL) + if (*hdr == NULL) return -EINVAL; return 0; } @@ -4098,7 +4098,7 @@ qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, } } else { /* passthrough */ if((skb->dev->type == ARPHRD_IEEE802_TR) && - !memcmp(skb->data + sizeof(struct qeth_hdr) + + !memcmp(skb->data + sizeof(struct qeth_hdr) + sizeof(__u16), skb->dev->broadcast, 6)) { hdr->hdr.l3.flags = QETH_CAST_BROADCAST | QETH_HDR_PASSTHRU; @@ -4385,7 +4385,7 @@ out: } static inline int -qeth_get_elements_no(struct qeth_card *card, void *hdr, +qeth_get_elements_no(struct qeth_card *card, void *hdr, struct sk_buff *skb, int elems) { int elements_needed = 0; @@ -4416,6 +4416,8 @@ qeth_send_packet(struct qeth_card *card, struct sk_buff *skb) enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO; struct qeth_eddp_context *ctx = NULL; int tx_bytes = skb->len; + unsigned short nr_frags = skb_shinfo(skb)->nr_frags; + unsigned short tso_size = skb_shinfo(skb)->tso_size; int rc; QETH_DBF_TEXT(trace, 6, "sendpkt"); @@ -4441,7 +4443,7 @@ qeth_send_packet(struct qeth_card *card, struct sk_buff *skb) return 0; } cast_type = qeth_get_cast_type(card, skb); - if ((cast_type == RTN_BROADCAST) && + if ((cast_type == RTN_BROADCAST) && (card->info.broadcast_capable == 0)){ card->stats.tx_dropped++; card->stats.tx_errors++; @@ -4463,7 +4465,7 @@ qeth_send_packet(struct qeth_card *card, struct sk_buff *skb) card->stats.tx_errors++; dev_kfree_skb_any(skb); return NETDEV_TX_OK; - } + } elements_needed++; } else { if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) { @@ -4498,16 +4500,16 @@ qeth_send_packet(struct qeth_card *card, struct sk_buff *skb) card->stats.tx_packets++; card->stats.tx_bytes += tx_bytes; #ifdef CONFIG_QETH_PERF_STATS - if (skb_shinfo(skb)->tso_size && + if (tso_size && !(large_send == QETH_LARGE_SEND_NO)) { - card->perf_stats.large_send_bytes += skb->len; + card->perf_stats.large_send_bytes += tx_bytes; card->perf_stats.large_send_cnt++; } - if (skb_shinfo(skb)->nr_frags > 0){ + if (nr_frags > 0){ card->perf_stats.sg_skbs_sent++; /* nr_frags + skb->data */ card->perf_stats.sg_frags_sent += - skb_shinfo(skb)->nr_frags + 1; + nr_frags + 1; } #endif /* CONFIG_QETH_PERF_STATS */ } @@ -5373,7 +5375,7 @@ qeth_layer2_send_setdelvlan_cb(struct qeth_card *card, cmd = (struct qeth_ipa_cmd *) data; if (cmd->hdr.return_code) { PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. " - "Continuing\n",cmd->data.setdelvlan.vlan_id, + "Continuing\n",cmd->data.setdelvlan.vlan_id, QETH_CARD_IFNAME(card), cmd->hdr.return_code); QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command); QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card)); @@ -5393,7 +5395,7 @@ qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i, iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); cmd->data.setdelvlan.vlan_id = i; - return qeth_send_ipa_cmd(card, iob, + return qeth_send_ipa_cmd(card, iob, qeth_layer2_send_setdelvlan_cb, NULL); } @@ -5457,7 +5459,7 @@ qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) * Examine hardware response to SET_PROMISC_MODE */ static int -qeth_setadp_promisc_mode_cb(struct qeth_card *card, +qeth_setadp_promisc_mode_cb(struct qeth_card *card, struct qeth_reply *reply, unsigned long data) { @@ -5468,10 +5470,10 @@ qeth_setadp_promisc_mode_cb(struct qeth_card *card, cmd = (struct qeth_ipa_cmd *) data; setparms = &(cmd->data.setadapterparms); - + qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd); - if (cmd->hdr.return_code) { - QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code); + if (cmd->hdr.return_code) { + QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code); setparms->data.mode = SET_PROMISC_MODE_OFF; } card->info.promisc_mode = setparms->data.mode; @@ -5517,7 +5519,7 @@ qeth_set_multicast_list(struct net_device *dev) if (card->info.type == QETH_CARD_TYPE_OSN) return ; - + QETH_DBF_TEXT(trace, 3, "setmulti"); qeth_delete_mc_addresses(card); if (card->options.layer2) { @@ -5575,7 +5577,7 @@ qeth_osn_assist(struct net_device *dev, struct qeth_cmd_buffer *iob; struct qeth_card *card; int rc; - + QETH_DBF_TEXT(trace, 2, "osnsdmc"); if (!dev) return -ENODEV; @@ -5654,7 +5656,7 @@ qeth_osn_deregister(struct net_device * dev) card->osn_info.data_cb = NULL; return; } - + static void qeth_delete_mc_addresses(struct qeth_card *card) { @@ -5818,7 +5820,7 @@ qeth_add_multicast_ipv6(struct qeth_card *card) struct inet6_dev *in6_dev; QETH_DBF_TEXT(trace,4,"chkmcv6"); - if (!qeth_is_supported(card, IPA_IPV6)) + if (!qeth_is_supported(card, IPA_IPV6)) return ; in6_dev = in6_dev_get(card->dev); if (in6_dev == NULL) @@ -6359,12 +6361,9 @@ qeth_netdev_init(struct net_device *dev) dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid; dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid; #endif - dev->hard_header = card->orig_hard_header; if (qeth_get_netdev_flags(card) & IFF_NOARP) { dev->rebuild_header = NULL; dev->hard_header = NULL; - if (card->options.fake_ll) - dev->hard_header = qeth_fake_header; dev->header_cache_update = NULL; dev->hard_header_cache = NULL; } @@ -6373,6 +6372,9 @@ qeth_netdev_init(struct net_device *dev) if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD)) card->dev->dev_id = card->info.unique_id & 0xffff; #endif + if (card->options.fake_ll && + (qeth_get_netdev_flags(card) & IFF_NOARP)) + dev->hard_header = qeth_fake_header; dev->hard_header_parse = NULL; dev->set_mac_address = qeth_layer2_set_mac_address; dev->flags |= qeth_get_netdev_flags(card); @@ -6477,6 +6479,9 @@ retry: /*network device will be recovered*/ if (card->dev) { card->dev->hard_header = card->orig_hard_header; + if (card->options.fake_ll && + (qeth_get_netdev_flags(card) & IFF_NOARP)) + card->dev->hard_header = qeth_fake_header; return 0; } /* at first set_online allocate netdev */ @@ -6584,7 +6589,7 @@ qeth_setadpparms_change_macaddr_cb(struct qeth_card *card, cmd = (struct qeth_ipa_cmd *) data; if (!card->options.layer2 || card->info.guestlan || - !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) { + !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) { memcpy(card->dev->dev_addr, &cmd->data.setadapterparms.data.change_addr.addr, OSA_ADDR_LEN); @@ -7031,14 +7036,12 @@ qeth_softsetup_ipv6(struct qeth_card *card) QETH_DBF_TEXT(trace,3,"softipv6"); - netif_stop_queue(card->dev); rc = qeth_send_startlan(card, QETH_PROT_IPV6); if (rc) { PRINT_ERR("IPv6 startlan failed on %s\n", QETH_CARD_IFNAME(card)); return rc; } - netif_wake_queue(card->dev); rc = qeth_query_ipassists(card,QETH_PROT_IPV6); if (rc) { PRINT_ERR("IPv6 query ipassist failed on %s\n", @@ -7352,7 +7355,8 @@ qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type) card->options.large_send = type; return 0; } - netif_stop_queue(card->dev); + if (card->state == CARD_STATE_UP) + netif_tx_disable(card->dev); card->options.large_send = type; switch (card->options.large_send) { case QETH_LARGE_SEND_EDDP: @@ -7374,7 +7378,8 @@ qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type) card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG); break; } - netif_wake_queue(card->dev); + if (card->state == CARD_STATE_UP) + netif_wake_queue(card->dev); return rc; } @@ -7427,7 +7432,7 @@ qeth_softsetup_card(struct qeth_card *card) if ((rc = qeth_setrouting_v6(card))) QETH_DBF_TEXT_(setup, 2, "5err%d", rc); out: - netif_stop_queue(card->dev); + netif_tx_disable(card->dev); return 0; } @@ -7567,7 +7572,7 @@ qeth_stop_card(struct qeth_card *card, int recovery_mode) if (card->read.state == CH_STATE_UP && card->write.state == CH_STATE_UP && (card->state == CARD_STATE_UP)) { - if (recovery_mode && + if (recovery_mode && card->info.type != QETH_CARD_TYPE_OSN) { qeth_stop(card->dev); } else { @@ -7736,10 +7741,8 @@ static int qeth_register_netdev(struct qeth_card *card) { QETH_DBF_TEXT(setup, 3, "regnetd"); - if (card->dev->reg_state != NETREG_UNINITIALIZED) { - qeth_netdev_init(card->dev); + if (card->dev->reg_state != NETREG_UNINITIALIZED) return 0; - } /* sysfs magic */ SET_NETDEV_DEV(card->dev, &card->gdev->dev); return register_netdev(card->dev); @@ -7750,7 +7753,7 @@ qeth_start_again(struct qeth_card *card, int recovery_mode) { QETH_DBF_TEXT(setup ,2, "startag"); - if (recovery_mode && + if (recovery_mode && card->info.type != QETH_CARD_TYPE_OSN) { qeth_open(card->dev); } else { @@ -8014,7 +8017,6 @@ static int (*qeth_old_arp_constructor) (struct neighbour *); static struct neigh_ops arp_direct_ops_template = { .family = AF_INET, - .destructor = NULL, .solicit = NULL, .error_report = NULL, .output = dev_queue_xmit, diff --git a/drivers/s390/net/qeth_mpc.h b/drivers/s390/net/qeth_mpc.h index 011c410..0477c47 100644 --- a/drivers/s390/net/qeth_mpc.h +++ b/drivers/s390/net/qeth_mpc.h @@ -445,7 +445,7 @@ enum qeth_ipa_arp_return_codes { /* Helper functions */ #define IS_IPA_REPLY(cmd) ((cmd->hdr.initiator == IPA_CMD_INITIATOR_HOST) || \ (cmd->hdr.initiator == IPA_CMD_INITIATOR_OSA_REPLY)) - + /*****************************************************************************/ /* END OF IP Assist related definitions */ /*****************************************************************************/ @@ -490,7 +490,7 @@ extern unsigned char ULP_ENABLE[]; /* Layer 2 defintions */ #define QETH_PROT_LAYER2 0x08 #define QETH_PROT_TCPIP 0x03 -#define QETH_PROT_OSN2 0x0a +#define QETH_PROT_OSN2 0x0a #define QETH_ULP_ENABLE_PROT_TYPE(buffer) (buffer+0x50) #define QETH_IPA_CMD_PROT_TYPE(buffer) (buffer+0x19) diff --git a/drivers/s390/net/qeth_proc.c b/drivers/s390/net/qeth_proc.c index 360d782..66f2da1 100644 --- a/drivers/s390/net/qeth_proc.c +++ b/drivers/s390/net/qeth_proc.c @@ -36,7 +36,7 @@ qeth_procfile_seq_start(struct seq_file *s, loff_t *offset) { struct device *dev = NULL; loff_t nr = 0; - + down_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem); if (*offset == 0) return SEQ_START_TOKEN; @@ -60,8 +60,8 @@ static void * qeth_procfile_seq_next(struct seq_file *s, void *it, loff_t *offset) { struct device *prev, *next; - - if (it == SEQ_START_TOKEN) + + if (it == SEQ_START_TOKEN) prev = NULL; else prev = (struct device *) it; @@ -180,7 +180,7 @@ qeth_perf_procfile_seq_show(struct seq_file *s, void *it) struct device *device; struct qeth_card *card; - + if (it == SEQ_START_TOKEN) return 0; diff --git a/drivers/s390/net/qeth_sys.c b/drivers/s390/net/qeth_sys.c index 882d419..185a9cf 100644 --- a/drivers/s390/net/qeth_sys.c +++ b/drivers/s390/net/qeth_sys.c @@ -785,7 +785,7 @@ qeth_dev_large_send_store(struct device *dev, struct device_attribute *attr, con } if (card->options.large_send == type) return count; - if ((rc = qeth_set_large_send(card, type))) + if ((rc = qeth_set_large_send(card, type))) return rc; return count; } @@ -1682,7 +1682,7 @@ qeth_create_device_attributes(struct device *dev) if (card->info.type == QETH_CARD_TYPE_OSN) return sysfs_create_group(&dev->kobj, &qeth_osn_device_attr_group); - + if ((ret = sysfs_create_group(&dev->kobj, &qeth_device_attr_group))) return ret; if ((ret = sysfs_create_group(&dev->kobj, &qeth_device_ipato_group))){ @@ -1713,7 +1713,7 @@ qeth_remove_device_attributes(struct device *dev) if (card->info.type == QETH_CARD_TYPE_OSN) return sysfs_remove_group(&dev->kobj, &qeth_osn_device_attr_group); - + sysfs_remove_group(&dev->kobj, &qeth_device_attr_group); sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group); sysfs_remove_group(&dev->kobj, &qeth_device_vipa_group); diff --git a/drivers/s390/net/qeth_tso.h b/drivers/s390/net/qeth_tso.h index 1286dde..24ef40c 100644 --- a/drivers/s390/net/qeth_tso.h +++ b/drivers/s390/net/qeth_tso.h @@ -117,11 +117,11 @@ __qeth_fill_buffer_frag(struct sk_buff *skb, struct qdio_buffer *buffer, int fragno; unsigned long addr; int element, cnt, dlen; - + fragno = skb_shinfo(skb)->nr_frags; element = *next_element_to_fill; dlen = 0; - + if (is_tso) buffer->element[element].flags = SBAL_FLAGS_MIDDLE_FRAG; diff --git a/drivers/s390/s390mach.c b/drivers/s390/s390mach.c index 3bf4666..f99e553 100644 --- a/drivers/s390/s390mach.c +++ b/drivers/s390/s390mach.c @@ -13,6 +13,7 @@ #include <linux/sched.h> #include <linux/errno.h> #include <linux/workqueue.h> +#include <linux/time.h> #include <asm/lowcore.h> @@ -362,12 +363,19 @@ s390_revalidate_registers(struct mci *mci) return kill_task; } +#define MAX_IPD_COUNT 29 +#define MAX_IPD_TIME (5 * 60 * USEC_PER_SEC) /* 5 minutes */ + /* * machine check handler. */ void s390_do_machine_check(struct pt_regs *regs) { + static DEFINE_SPINLOCK(ipd_lock); + static unsigned long long last_ipd; + static int ipd_count; + unsigned long long tmp; struct mci *mci; struct mcck_struct *mcck; int umode; @@ -404,11 +412,27 @@ s390_do_machine_check(struct pt_regs *regs) s390_handle_damage("processing backup machine " "check with damage."); } - if (!umode) - s390_handle_damage("processing backup machine " - "check in kernel mode."); - mcck->kill_task = 1; - mcck->mcck_code = *(unsigned long long *) mci; + + /* + * Nullifying exigent condition, therefore we might + * retry this instruction. + */ + + spin_lock(&ipd_lock); + + tmp = get_clock(); + + if (((tmp - last_ipd) >> 12) < MAX_IPD_TIME) + ipd_count++; + else + ipd_count = 1; + + last_ipd = tmp; + + if (ipd_count == MAX_IPD_COUNT) + s390_handle_damage("too many ipd retries."); + + spin_unlock(&ipd_lock); } else { /* Processing damage -> stopping machine */ |