diff options
Diffstat (limited to 'drivers/s390')
79 files changed, 1299 insertions, 1612 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index cfb1fff3787..4bf03fb67f8 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -9,7 +9,6 @@ * */ -#include <linux/config.h> #include <linux/kmod.h> #include <linux/init.h> #include <linux/interrupt.h> @@ -95,7 +94,7 @@ dasd_alloc_device(void) spin_lock_init(&device->mem_lock); spin_lock_init(&device->request_queue_lock); atomic_set (&device->tasklet_scheduled, 0); - tasklet_init(&device->tasklet, + tasklet_init(&device->tasklet, (void (*)(unsigned long)) dasd_tasklet, (unsigned long) device); INIT_LIST_HEAD(&device->ccw_queue); @@ -128,7 +127,7 @@ dasd_state_new_to_known(struct dasd_device *device) int rc; /* - * As long as the device is not in state DASD_STATE_NEW we want to + * As long as the device is not in state DASD_STATE_NEW we want to * keep the reference count > 0. */ dasd_get_device(device); @@ -336,7 +335,7 @@ dasd_decrease_state(struct dasd_device *device) if (device->state == DASD_STATE_ONLINE && device->target <= DASD_STATE_READY) dasd_state_online_to_ready(device); - + if (device->state == DASD_STATE_READY && device->target <= DASD_STATE_BASIC) dasd_state_ready_to_basic(device); @@ -348,7 +347,7 @@ dasd_decrease_state(struct dasd_device *device) if (device->state == DASD_STATE_BASIC && device->target <= DASD_STATE_KNOWN) dasd_state_basic_to_known(device); - + if (device->state == DASD_STATE_KNOWN && device->target <= DASD_STATE_NEW) dasd_state_known_to_new(device); @@ -994,7 +993,7 @@ dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, ((irb->scsw.cstat << 8) | irb->scsw.dstat), cqr); /* Find out the appropriate era_action. */ - if (irb->scsw.fctl & SCSW_FCTL_HALT_FUNC) + if (irb->scsw.fctl & SCSW_FCTL_HALT_FUNC) era = dasd_era_fatal; else if (irb->scsw.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END) && irb->scsw.cstat == 0 && @@ -1004,7 +1003,7 @@ dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, era = dasd_era_fatal; /* don't recover this request */ else if (irb->esw.esw0.erw.cons) era = device->discipline->examine_error(cqr, irb); - else + else era = dasd_era_recover; DBF_DEV_EVENT(DBF_DEBUG, device, "era_code %d", era); @@ -1287,7 +1286,7 @@ __dasd_start_head(struct dasd_device * device) } /* - * Remove requests from the ccw queue. + * Remove requests from the ccw queue. */ static void dasd_flush_ccw_queue(struct dasd_device * device, int all) @@ -1450,23 +1449,23 @@ dasd_sleep_on(struct dasd_ccw_req * cqr) wait_queue_head_t wait_q; struct dasd_device *device; int rc; - + device = cqr->device; spin_lock_irq(get_ccwdev_lock(device->cdev)); - + init_waitqueue_head (&wait_q); cqr->callback = dasd_wakeup_cb; cqr->callback_data = (void *) &wait_q; cqr->status = DASD_CQR_QUEUED; list_add_tail(&cqr->list, &device->ccw_queue); - + /* let the bh start the request to keep them in order */ dasd_schedule_bh(device); - + spin_unlock_irq(get_ccwdev_lock(device->cdev)); wait_event(wait_q, _wait_for_wakeup(cqr)); - + /* Request status is either done or failed. */ rc = (cqr->status == DASD_CQR_FAILED) ? -EIO : 0; return rc; @@ -1568,7 +1567,7 @@ dasd_sleep_on_immediatly(struct dasd_ccw_req * cqr) wait_queue_head_t wait_q; struct dasd_device *device; int rc; - + device = cqr->device; spin_lock_irq(get_ccwdev_lock(device->cdev)); rc = _dasd_term_running_cqr(device); @@ -1576,20 +1575,20 @@ dasd_sleep_on_immediatly(struct dasd_ccw_req * cqr) spin_unlock_irq(get_ccwdev_lock(device->cdev)); return rc; } - + init_waitqueue_head (&wait_q); cqr->callback = dasd_wakeup_cb; cqr->callback_data = (void *) &wait_q; cqr->status = DASD_CQR_QUEUED; list_add(&cqr->list, &device->ccw_queue); - + /* let the bh start the request to keep them in order */ dasd_schedule_bh(device); - + spin_unlock_irq(get_ccwdev_lock(device->cdev)); wait_event(wait_q, _wait_for_wakeup(cqr)); - + /* Request status is either done or failed. */ rc = (cqr->status == DASD_CQR_FAILED) ? -EIO : 0; return rc; @@ -1725,7 +1724,7 @@ dasd_flush_request_queue(struct dasd_device * device) if (!device->request_queue) return; - + spin_lock_irq(&device->request_queue_lock); while (!list_empty(&device->request_queue->queue_head)) { req = elv_next_request(device->request_queue); @@ -1834,7 +1833,6 @@ dasd_exit(void) } dasd_gendisk_exit(); dasd_devmap_exit(); - devfs_remove("dasd"); if (dasd_debug_area != NULL) { debug_unregister(dasd_debug_area); dasd_debug_area = NULL; @@ -1855,15 +1853,34 @@ dasd_generic_probe (struct ccw_device *cdev, { int ret; + ret = ccw_device_set_options(cdev, CCWDEV_DO_PATHGROUP); + if (ret) { + printk(KERN_WARNING + "dasd_generic_probe: could not set ccw-device options " + "for %s\n", cdev->dev.bus_id); + return ret; + } ret = dasd_add_sysfs_files(cdev); if (ret) { printk(KERN_WARNING "dasd_generic_probe: could not add sysfs entries " "for %s\n", cdev->dev.bus_id); - } else { - cdev->handler = &dasd_int_handler; + return ret; } + cdev->handler = &dasd_int_handler; + /* + * Automatically online either all dasd devices (dasd_autodetect) + * or all devices specified with dasd= parameters during + * initial probe. + */ + if ((dasd_get_feature(cdev, DASD_FEATURE_INITIAL_ONLINE) > 0 ) || + (dasd_autodetect && dasd_busid_known(cdev->dev.bus_id) != 0)) + ret = ccw_device_set_online(cdev); + if (ret) + printk(KERN_WARNING + "dasd_generic_probe: could not initially online " + "ccw-device %s\n", cdev->dev.bus_id); return ret; } @@ -1911,6 +1928,8 @@ dasd_generic_set_online (struct ccw_device *cdev, struct dasd_device *device; int rc; + /* first online clears initial online feature flag */ + dasd_set_feature(cdev, DASD_FEATURE_INITIAL_ONLINE, 0); device = dasd_create_device(cdev); if (IS_ERR(device)) return PTR_ERR(device); @@ -2065,31 +2084,6 @@ dasd_generic_notify(struct ccw_device *cdev, int event) return ret; } -/* - * Automatically online either all dasd devices (dasd_autodetect) or - * all devices specified with dasd= parameters. - */ -static int -__dasd_auto_online(struct device *dev, void *data) -{ - struct ccw_device *cdev; - - cdev = to_ccwdev(dev); - if (dasd_autodetect || dasd_busid_known(cdev->dev.bus_id) == 0) - ccw_device_set_online(cdev); - return 0; -} - -void -dasd_generic_auto_online (struct ccw_driver *dasd_discipline_driver) -{ - struct device_driver *drv; - - drv = get_driver(&dasd_discipline_driver->driver); - driver_for_each_device(drv, NULL, NULL, __dasd_auto_online); - put_driver(drv); -} - static int __init dasd_init(void) @@ -2111,9 +2105,6 @@ dasd_init(void) dasd_diag_discipline_pointer = NULL; - rc = devfs_mk_dir("dasd"); - if (rc) - goto failed; rc = dasd_devmap_init(); if (rc) goto failed; @@ -2170,23 +2161,4 @@ EXPORT_SYMBOL_GPL(dasd_generic_remove); EXPORT_SYMBOL_GPL(dasd_generic_notify); EXPORT_SYMBOL_GPL(dasd_generic_set_online); EXPORT_SYMBOL_GPL(dasd_generic_set_offline); -EXPORT_SYMBOL_GPL(dasd_generic_auto_online); -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-indent-level: 4 - * c-brace-imaginary-offset: 0 - * c-brace-offset: -4 - * c-argdecl-indent: 4 - * c-label-offset: -4 - * c-continued-statement-offset: 4 - * c-continued-brace-offset: 0 - * indent-tabs-mode: 1 - * tab-width: 8 - * End: - */ diff --git a/drivers/s390/block/dasd_3370_erp.c b/drivers/s390/block/dasd_3370_erp.c index 1d11c2a9525..1ddab8991d9 100644 --- a/drivers/s390/block/dasd_3370_erp.c +++ b/drivers/s390/block/dasd_3370_erp.c @@ -1,4 +1,4 @@ -/* +/* * File...........: linux/drivers/s390/block/dasd_3370_erp.c * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> * Bugreports.to..: <Linux390@de.ibm.com> @@ -12,10 +12,10 @@ /* - * DASD_3370_ERP_EXAMINE + * DASD_3370_ERP_EXAMINE * * DESCRIPTION - * Checks only for fatal/no/recover error. + * Checks only for fatal/no/recover error. * A detailed examination of the sense data is done later outside * the interrupt handler. * @@ -23,7 +23,7 @@ * 'Chapter 7. 3370 Sense Data'. * * RETURN VALUES - * dasd_era_none no error + * dasd_era_none no error * dasd_era_fatal for all fatal (unrecoverable errors) * dasd_era_recover for all others. */ @@ -82,22 +82,3 @@ dasd_3370_erp_examine(struct dasd_ccw_req * cqr, struct irb * irb) return dasd_era_recover; } /* END dasd_3370_erp_examine */ - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-indent-level: 4 - * c-brace-imaginary-offset: 0 - * c-brace-offset: -4 - * c-argdecl-indent: 4 - * c-label-offset: -4 - * c-continued-statement-offset: 4 - * c-continued-brace-offset: 0 - * indent-tabs-mode: 1 - * tab-width: 8 - * End: - */ diff --git a/drivers/s390/block/dasd_3990_erp.c b/drivers/s390/block/dasd_3990_erp.c index 2ed51562319..669805d4402 100644 --- a/drivers/s390/block/dasd_3990_erp.c +++ b/drivers/s390/block/dasd_3990_erp.c @@ -1,6 +1,6 @@ -/* +/* * File...........: linux/drivers/s390/block/dasd_3990_erp.c - * Author(s)......: Horst Hummel <Horst.Hummel@de.ibm.com> + * Author(s)......: Horst Hummel <Horst.Hummel@de.ibm.com> * Holger Smolinski <Holger.Smolinski@de.ibm.com> * Bugreports.to..: <Linux390@de.ibm.com> * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 2000, 2001 @@ -25,23 +25,23 @@ struct DCTL_data { } __attribute__ ((packed)); /* - ***************************************************************************** + ***************************************************************************** * SECTION ERP EXAMINATION - ***************************************************************************** + ***************************************************************************** */ /* - * DASD_3990_ERP_EXAMINE_24 + * DASD_3990_ERP_EXAMINE_24 * * DESCRIPTION - * Checks only for fatal (unrecoverable) error. + * Checks only for fatal (unrecoverable) error. * A detailed examination of the sense data is done later outside * the interrupt handler. * * Each bit configuration leading to an action code 2 (Exit with * programming error or unusual condition indication) * are handled as fatal errorīs. - * + * * All other configurations are handled as recoverable errors. * * RETURN VALUES @@ -93,15 +93,15 @@ dasd_3990_erp_examine_24(struct dasd_ccw_req * cqr, char *sense) } /* END dasd_3990_erp_examine_24 */ /* - * DASD_3990_ERP_EXAMINE_32 + * DASD_3990_ERP_EXAMINE_32 * * DESCRIPTION - * Checks only for fatal/no/recoverable error. + * Checks only for fatal/no/recoverable error. * A detailed examination of the sense data is done later outside * the interrupt handler. * * RETURN VALUES - * dasd_era_none no error + * dasd_era_none no error * dasd_era_fatal for all fatal (unrecoverable errors) * dasd_era_recover for recoverable others. */ @@ -128,10 +128,10 @@ dasd_3990_erp_examine_32(struct dasd_ccw_req * cqr, char *sense) } /* end dasd_3990_erp_examine_32 */ /* - * DASD_3990_ERP_EXAMINE + * DASD_3990_ERP_EXAMINE * * DESCRIPTION - * Checks only for fatal/no/recover error. + * Checks only for fatal/no/recover error. * A detailed examination of the sense data is done later outside * the interrupt handler. * @@ -139,7 +139,7 @@ dasd_3990_erp_examine_32(struct dasd_ccw_req * cqr, char *sense) * 'Chapter 7. Error Recovery Procedures'. * * RETURN VALUES - * dasd_era_none no error + * dasd_era_none no error * dasd_era_fatal for all fatal (unrecoverable errors) * dasd_era_recover for all others. */ @@ -178,18 +178,18 @@ dasd_3990_erp_examine(struct dasd_ccw_req * cqr, struct irb * irb) } /* END dasd_3990_erp_examine */ /* - ***************************************************************************** + ***************************************************************************** * SECTION ERP HANDLING - ***************************************************************************** + ***************************************************************************** */ /* - ***************************************************************************** + ***************************************************************************** * 24 and 32 byte sense ERP functions - ***************************************************************************** + ***************************************************************************** */ /* - * DASD_3990_ERP_CLEANUP + * DASD_3990_ERP_CLEANUP * * DESCRIPTION * Removes the already build but not necessary ERP request and sets @@ -197,10 +197,10 @@ dasd_3990_erp_examine(struct dasd_ccw_req * cqr, struct irb * irb) * * PARAMETER * erp request to be blocked - * final_status either DASD_CQR_DONE or DASD_CQR_FAILED + * final_status either DASD_CQR_DONE or DASD_CQR_FAILED * * RETURN VALUES - * cqr original cqr + * cqr original cqr */ static struct dasd_ccw_req * dasd_3990_erp_cleanup(struct dasd_ccw_req * erp, char final_status) @@ -214,7 +214,7 @@ dasd_3990_erp_cleanup(struct dasd_ccw_req * erp, char final_status) } /* end dasd_3990_erp_cleanup */ /* - * DASD_3990_ERP_BLOCK_QUEUE + * DASD_3990_ERP_BLOCK_QUEUE * * DESCRIPTION * Block the given device request queue to prevent from further @@ -237,7 +237,7 @@ dasd_3990_erp_block_queue(struct dasd_ccw_req * erp, int expires) } /* - * DASD_3990_ERP_INT_REQ + * DASD_3990_ERP_INT_REQ * * DESCRIPTION * Handles 'Intervention Required' error. @@ -277,7 +277,7 @@ dasd_3990_erp_int_req(struct dasd_ccw_req * erp) } /* end dasd_3990_erp_int_req */ /* - * DASD_3990_ERP_ALTERNATE_PATH + * DASD_3990_ERP_ALTERNATE_PATH * * DESCRIPTION * Repeat the operation on a different channel path. @@ -330,15 +330,15 @@ dasd_3990_erp_alternate_path(struct dasd_ccw_req * erp) * DASD_3990_ERP_DCTL * * DESCRIPTION - * Setup cqr to do the Diagnostic Control (DCTL) command with an + * Setup cqr to do the Diagnostic Control (DCTL) command with an * Inhibit Write subcommand (0x20) and the given modifier. * * PARAMETER * erp pointer to the current (failed) ERP * modifier subcommand modifier - * + * * RETURN VALUES - * dctl_cqr pointer to NEW dctl_cqr + * dctl_cqr pointer to NEW dctl_cqr * */ static struct dasd_ccw_req * @@ -386,7 +386,7 @@ dasd_3990_erp_DCTL(struct dasd_ccw_req * erp, char modifier) } /* end dasd_3990_erp_DCTL */ /* - * DASD_3990_ERP_ACTION_1 + * DASD_3990_ERP_ACTION_1 * * DESCRIPTION * Setup ERP to do the ERP action 1 (see Reference manual). @@ -415,7 +415,7 @@ dasd_3990_erp_action_1(struct dasd_ccw_req * erp) } /* end dasd_3990_erp_action_1 */ /* - * DASD_3990_ERP_ACTION_4 + * DASD_3990_ERP_ACTION_4 * * DESCRIPTION * Setup ERP to do the ERP action 4 (see Reference manual). @@ -453,11 +453,11 @@ dasd_3990_erp_action_4(struct dasd_ccw_req * erp, char *sense) if (sense[25] == 0x1D) { /* state change pending */ - DEV_MESSAGE(KERN_INFO, device, + DEV_MESSAGE(KERN_INFO, device, "waiting for state change pending " "interrupt, %d retries left", erp->retries); - + dasd_3990_erp_block_queue(erp, 30*HZ); } else if (sense[25] == 0x1E) { /* busy */ @@ -469,9 +469,9 @@ dasd_3990_erp_action_4(struct dasd_ccw_req * erp, char *sense) } else { /* no state change pending - retry */ - DEV_MESSAGE (KERN_INFO, device, + DEV_MESSAGE (KERN_INFO, device, "redriving request immediately, " - "%d retries left", + "%d retries left", erp->retries); erp->status = DASD_CQR_QUEUED; } @@ -482,13 +482,13 @@ dasd_3990_erp_action_4(struct dasd_ccw_req * erp, char *sense) } /* end dasd_3990_erp_action_4 */ /* - ***************************************************************************** + ***************************************************************************** * 24 byte sense ERP functions (only) - ***************************************************************************** + ***************************************************************************** */ /* - * DASD_3990_ERP_ACTION_5 + * DASD_3990_ERP_ACTION_5 * * DESCRIPTION * Setup ERP to do the ERP action 5 (see Reference manual). @@ -523,7 +523,7 @@ dasd_3990_erp_action_5(struct dasd_ccw_req * erp) * * PARAMETER * sense current sense data - * + * * RETURN VALUES * void */ @@ -1150,9 +1150,9 @@ dasd_3990_handle_env_data(struct dasd_ccw_req * erp, char *sense) * PARAMETER * erp current erp_head * sense current sense data - * + * * RETURN VALUES - * erp 'new' erp_head - pointer to new ERP + * erp 'new' erp_head - pointer to new ERP */ static struct dasd_ccw_req * dasd_3990_erp_com_rej(struct dasd_ccw_req * erp, char *sense) @@ -1185,7 +1185,7 @@ dasd_3990_erp_com_rej(struct dasd_ccw_req * erp, char *sense) } /* end dasd_3990_erp_com_rej */ /* - * DASD_3990_ERP_BUS_OUT + * DASD_3990_ERP_BUS_OUT * * DESCRIPTION * Handles 24 byte 'Bus Out Parity Check' error. @@ -1483,7 +1483,7 @@ dasd_3990_erp_env_data(struct dasd_ccw_req * erp, char *sense) * * PARAMETER * erp already added default ERP - * + * * RETURN VALUES * erp new erp_head - pointer to new ERP */ @@ -1527,11 +1527,11 @@ dasd_3990_erp_file_prot(struct dasd_ccw_req * erp) } /* end dasd_3990_erp_file_prot */ /* - * DASD_3990_ERP_INSPECT_24 + * DASD_3990_ERP_INSPECT_24 * * DESCRIPTION * Does a detailed inspection of the 24 byte sense data - * and sets up a related error recovery action. + * and sets up a related error recovery action. * * PARAMETER * sense sense data of the actual error @@ -1602,13 +1602,13 @@ dasd_3990_erp_inspect_24(struct dasd_ccw_req * erp, char *sense) } /* END dasd_3990_erp_inspect_24 */ /* - ***************************************************************************** + ***************************************************************************** * 32 byte sense ERP functions (only) - ***************************************************************************** + ***************************************************************************** */ /* - * DASD_3990_ERPACTION_10_32 + * DASD_3990_ERPACTION_10_32 * * DESCRIPTION * Handles 32 byte 'Action 10' of Single Program Action Codes. @@ -1616,7 +1616,7 @@ dasd_3990_erp_inspect_24(struct dasd_ccw_req * erp, char *sense) * * PARAMETER * erp current erp_head - * sense current sense data + * sense current sense data * RETURN VALUES * erp modified erp_head */ @@ -1640,18 +1640,18 @@ dasd_3990_erp_action_10_32(struct dasd_ccw_req * erp, char *sense) * * DESCRIPTION * Handles 32 byte 'Action 1B' of Single Program Action Codes. - * A write operation could not be finished because of an unexpected + * A write operation could not be finished because of an unexpected * condition. - * The already created 'default erp' is used to get the link to - * the erp chain, but it can not be used for this recovery + * The already created 'default erp' is used to get the link to + * the erp chain, but it can not be used for this recovery * action because it contains no DE/LO data space. * * PARAMETER * default_erp already added default erp. - * sense current sense data + * sense current sense data * * RETURN VALUES - * erp new erp or + * erp new erp or * default_erp in case of imprecise ending or error */ static struct dasd_ccw_req * @@ -1789,16 +1789,16 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense) * DASD_3990_UPDATE_1B * * DESCRIPTION - * Handles the update to the 32 byte 'Action 1B' of Single Program + * Handles the update to the 32 byte 'Action 1B' of Single Program * Action Codes in case the first action was not successful. * The already created 'previous_erp' is the currently not successful - * ERP. + * ERP. * * PARAMETER * previous_erp already created previous erp. - * sense current sense data + * sense current sense data * RETURN VALUES - * erp modified erp + * erp modified erp */ static struct dasd_ccw_req * dasd_3990_update_1B(struct dasd_ccw_req * previous_erp, char *sense) @@ -1897,7 +1897,7 @@ dasd_3990_update_1B(struct dasd_ccw_req * previous_erp, char *sense) } /* end dasd_3990_update_1B */ /* - * DASD_3990_ERP_COMPOUND_RETRY + * DASD_3990_ERP_COMPOUND_RETRY * * DESCRIPTION * Handles the compound ERP action retry code. @@ -1943,7 +1943,7 @@ dasd_3990_erp_compound_retry(struct dasd_ccw_req * erp, char *sense) } /* end dasd_3990_erp_compound_retry */ /* - * DASD_3990_ERP_COMPOUND_PATH + * DASD_3990_ERP_COMPOUND_PATH * * DESCRIPTION * Handles the compound ERP action for retry on alternate @@ -1965,7 +1965,7 @@ dasd_3990_erp_compound_path(struct dasd_ccw_req * erp, char *sense) dasd_3990_erp_alternate_path(erp); if (erp->status == DASD_CQR_FAILED) { - /* reset the lpm and the status to be able to + /* reset the lpm and the status to be able to * try further actions. */ erp->lpm = 0; @@ -1980,7 +1980,7 @@ dasd_3990_erp_compound_path(struct dasd_ccw_req * erp, char *sense) } /* end dasd_3990_erp_compound_path */ /* - * DASD_3990_ERP_COMPOUND_CODE + * DASD_3990_ERP_COMPOUND_CODE * * DESCRIPTION * Handles the compound ERP action for retry code. @@ -2001,18 +2001,18 @@ dasd_3990_erp_compound_code(struct dasd_ccw_req * erp, char *sense) switch (sense[28]) { case 0x17: - /* issue a Diagnostic Control command with an + /* issue a Diagnostic Control command with an * Inhibit Write subcommand and controler modifier */ erp = dasd_3990_erp_DCTL(erp, 0x20); break; - + case 0x25: /* wait for 5 seconds and retry again */ erp->retries = 1; - + dasd_3990_erp_block_queue (erp, 5*HZ); break; - + default: /* should not happen - continue */ break; @@ -2026,7 +2026,7 @@ dasd_3990_erp_compound_code(struct dasd_ccw_req * erp, char *sense) } /* end dasd_3990_erp_compound_code */ /* - * DASD_3990_ERP_COMPOUND_CONFIG + * DASD_3990_ERP_COMPOUND_CONFIG * * DESCRIPTION * Handles the compound ERP action for configruation @@ -2063,10 +2063,10 @@ dasd_3990_erp_compound_config(struct dasd_ccw_req * erp, char *sense) } /* end dasd_3990_erp_compound_config */ /* - * DASD_3990_ERP_COMPOUND + * DASD_3990_ERP_COMPOUND * * DESCRIPTION - * Does the further compound program action if + * Does the further compound program action if * compound retry was not successful. * * PARAMETER @@ -2110,11 +2110,11 @@ dasd_3990_erp_compound(struct dasd_ccw_req * erp, char *sense) } /* end dasd_3990_erp_compound */ /* - * DASD_3990_ERP_INSPECT_32 + * DASD_3990_ERP_INSPECT_32 * * DESCRIPTION * Does a detailed inspection of the 32 byte sense data - * and sets up a related error recovery action. + * and sets up a related error recovery action. * * PARAMETER * sense sense data of the actual error @@ -2228,9 +2228,9 @@ dasd_3990_erp_inspect_32(struct dasd_ccw_req * erp, char *sense) } /* end dasd_3990_erp_inspect_32 */ /* - ***************************************************************************** + ***************************************************************************** * main ERP control fuctions (24 and 32 byte sense) - ***************************************************************************** + ***************************************************************************** */ /* @@ -2243,7 +2243,7 @@ dasd_3990_erp_inspect_32(struct dasd_ccw_req * erp, char *sense) * PARAMETER * erp pointer to the currently created default ERP * RETURN VALUES - * erp_new contens was possibly modified + * erp_new contens was possibly modified */ static struct dasd_ccw_req * dasd_3990_erp_inspect(struct dasd_ccw_req * erp) @@ -2272,14 +2272,14 @@ dasd_3990_erp_inspect(struct dasd_ccw_req * erp) /* * DASD_3990_ERP_ADD_ERP - * + * * DESCRIPTION * This funtion adds an additional request block (ERP) to the head of * the given cqr (or erp). * This erp is initialized as an default erp (retry TIC) * * PARAMETER - * cqr head of the current ERP-chain (or single cqr if + * cqr head of the current ERP-chain (or single cqr if * first error) * RETURN VALUES * erp pointer to new ERP-chain head @@ -2332,15 +2332,15 @@ dasd_3990_erp_add_erp(struct dasd_ccw_req * cqr) } /* - * DASD_3990_ERP_ADDITIONAL_ERP - * + * DASD_3990_ERP_ADDITIONAL_ERP + * * DESCRIPTION * An additional ERP is needed to handle the current error. * Add ERP to the head of the ERP-chain containing the ERP processing * determined based on the sense data. * * PARAMETER - * cqr head of the current ERP-chain (or single cqr if + * cqr head of the current ERP-chain (or single cqr if * first error) * * RETURN VALUES @@ -2376,7 +2376,7 @@ dasd_3990_erp_additional_erp(struct dasd_ccw_req * cqr) * 24 byte sense byte 25 and 27 is set as well. * * PARAMETER - * cqr1 first cqr, which will be compared with the + * cqr1 first cqr, which will be compared with the * cqr2 second cqr. * * RETURN VALUES @@ -2415,7 +2415,7 @@ dasd_3990_erp_error_match(struct dasd_ccw_req *cqr1, struct dasd_ccw_req *cqr2) * cqr failed cqr (either original cqr or already an erp) * * RETURN VALUES - * erp erp-pointer to the already defined error + * erp erp-pointer to the already defined error * recovery procedure OR * NULL if a 'new' error occurred. */ @@ -2451,10 +2451,10 @@ dasd_3990_erp_in_erp(struct dasd_ccw_req *cqr) * DASD_3990_ERP_FURTHER_ERP (24 & 32 byte sense) * * DESCRIPTION - * No retry is left for the current ERP. Check what has to be done + * No retry is left for the current ERP. Check what has to be done * with the ERP. * - do further defined ERP action or - * - wait for interrupt or + * - wait for interrupt or * - exit with permanent error * * PARAMETER @@ -2485,7 +2485,7 @@ dasd_3990_erp_further_erp(struct dasd_ccw_req *erp) if (!(sense[2] & DASD_SENSE_BIT_0)) { - /* issue a Diagnostic Control command with an + /* issue a Diagnostic Control command with an * Inhibit Write subcommand */ switch (sense[25]) { @@ -2535,14 +2535,14 @@ dasd_3990_erp_further_erp(struct dasd_ccw_req *erp) } /* end dasd_3990_erp_further_erp */ /* - * DASD_3990_ERP_HANDLE_MATCH_ERP + * DASD_3990_ERP_HANDLE_MATCH_ERP * * DESCRIPTION * An error occurred again and an ERP has been detected which is already - * used to handle this error (e.g. retries). + * used to handle this error (e.g. retries). * All prior ERP's are asumed to be successful and therefore removed * from queue. - * If retry counter of matching erp is already 0, it is checked if further + * If retry counter of matching erp is already 0, it is checked if further * action is needed (besides retry) or if the ERP has failed. * * PARAMETER @@ -2631,7 +2631,7 @@ dasd_3990_erp_handle_match_erp(struct dasd_ccw_req *erp_head, * erp erp-pointer to the head of the ERP action chain. * This means: * - either a ptr to an additional ERP cqr or - * - the original given cqr (which's status might + * - the original given cqr (which's status might * be modified) */ struct dasd_ccw_req * @@ -2723,22 +2723,3 @@ dasd_3990_erp_action(struct dasd_ccw_req * cqr) return erp; } /* end dasd_3990_erp_action */ - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-indent-level: 4 - * c-brace-imaginary-offset: 0 - * c-brace-offset: -4 - * c-argdecl-indent: 4 - * c-label-offset: -4 - * c-continued-statement-offset: 4 - * c-continued-brace-offset: 0 - * indent-tabs-mode: 1 - * tab-width: 8 - * End: - */ diff --git a/drivers/s390/block/dasd_9336_erp.c b/drivers/s390/block/dasd_9336_erp.c index dc861446d05..6e082688475 100644 --- a/drivers/s390/block/dasd_9336_erp.c +++ b/drivers/s390/block/dasd_9336_erp.c @@ -1,4 +1,4 @@ -/* +/* * File...........: linux/drivers/s390/block/dasd_9336_erp.c * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> * Bugreports.to..: <Linux390@de.ibm.com> @@ -12,10 +12,10 @@ /* - * DASD_9336_ERP_EXAMINE + * DASD_9336_ERP_EXAMINE * * DESCRIPTION - * Checks only for fatal/no/recover error. + * Checks only for fatal/no/recover error. * A detailed examination of the sense data is done later outside * the interrupt handler. * @@ -23,7 +23,7 @@ * 'Chapter 7. 9336 Sense Data'. * * RETURN VALUES - * dasd_era_none no error + * dasd_era_none no error * dasd_era_fatal for all fatal (unrecoverable errors) * dasd_era_recover for all others. */ @@ -39,22 +39,3 @@ dasd_9336_erp_examine(struct dasd_ccw_req * cqr, struct irb * irb) return dasd_era_recover; } /* END dasd_9336_erp_examine */ - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-indent-level: 4 - * c-brace-imaginary-offset: 0 - * c-brace-offset: -4 - * c-argdecl-indent: 4 - * c-label-offset: -4 - * c-continued-statement-offset: 4 - * c-continued-brace-offset: 0 - * indent-tabs-mode: 1 - * tab-width: 8 - * End: - */ diff --git a/drivers/s390/block/dasd_9343_erp.c b/drivers/s390/block/dasd_9343_erp.c index 4a5b79569aa..ddecb9808ed 100644 --- a/drivers/s390/block/dasd_9343_erp.c +++ b/drivers/s390/block/dasd_9343_erp.c @@ -1,4 +1,4 @@ -/* +/* * File...........: linux/drivers/s390/block/dasd_9345_erp.c * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> * Bugreports.to..: <Linux390@de.ibm.com> diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c index 216bc4fba19..d7295386821 100644 --- a/drivers/s390/block/dasd_devmap.c +++ b/drivers/s390/block/dasd_devmap.c @@ -13,7 +13,6 @@ * */ -#include <linux/config.h> #include <linux/ctype.h> #include <linux/init.h> #include <linux/module.h> @@ -27,7 +26,7 @@ #include "dasd_int.h" kmem_cache_t *dasd_page_cache; -EXPORT_SYMBOL(dasd_page_cache); +EXPORT_SYMBOL_GPL(dasd_page_cache); /* * dasd_devmap_t is used to store the features and the relation @@ -49,6 +48,20 @@ struct dasd_devmap { }; /* + * dasd_servermap is used to store the server_id of all storage servers + * accessed by DASD device driver. + */ +struct dasd_servermap { + struct list_head list; + struct server_id { + char vendor[4]; + char serial[15]; + } sid; +}; + +static struct list_head dasd_serverlist; + +/* * Parameter parsing functions for dasd= parameter. The syntax is: * <devno> : (0x)?[0-9a-fA-F]+ * <busid> : [0-0a-f]\.[0-9a-f]\.(0x)?[0-9a-fA-F]+ @@ -64,6 +77,8 @@ struct dasd_devmap { int dasd_probeonly = 0; /* is true, when probeonly mode is active */ int dasd_autodetect = 0; /* is true, when autodetection is active */ +int dasd_nopav = 0; /* is true, when PAV is disabled */ +EXPORT_SYMBOL_GPL(dasd_nopav); /* * char *dasd[] is intended to hold the ranges supplied by the dasd= statement @@ -123,7 +138,7 @@ static inline int dasd_busid(char **str, int *id0, int *id1, int *devno) { int val, old_style; - + /* check for leading '0x' */ old_style = 0; if ((*str)[0] == '0' && (*str)[1] == 'x') { @@ -179,7 +194,7 @@ dasd_feature_list(char *str, char **endp) features = 0; while (1) { - for (len = 0; + for (len = 0; str[len] && str[len] != ':' && str[len] != ')'; len++); if (len == 2 && !strncmp(str, "ro", 2)) features |= DASD_FEATURE_READONLY; @@ -228,19 +243,24 @@ dasd_parse_keyword( char *parsestring ) { length = strlen(parsestring); residual_str = parsestring + length; } - if (strncmp ("autodetect", parsestring, length) == 0) { + if (strncmp("autodetect", parsestring, length) == 0) { dasd_autodetect = 1; MESSAGE (KERN_INFO, "%s", "turning to autodetection mode"); return residual_str; } - if (strncmp ("probeonly", parsestring, length) == 0) { + if (strncmp("probeonly", parsestring, length) == 0) { dasd_probeonly = 1; MESSAGE(KERN_INFO, "%s", "turning to probeonly mode"); return residual_str; } - if (strncmp ("fixedbuffers", parsestring, length) == 0) { + if (strncmp("nopav", parsestring, length) == 0) { + dasd_nopav = 1; + MESSAGE(KERN_INFO, "%s", "disable PAV mode"); + return residual_str; + } + if (strncmp("fixedbuffers", parsestring, length) == 0) { if (dasd_page_cache) return residual_str; dasd_page_cache = @@ -294,6 +314,8 @@ dasd_parse_range( char *parsestring ) { features = dasd_feature_list(str, &str); if (features < 0) return ERR_PTR(-EINVAL); + /* each device in dasd= parameter should be set initially online */ + features |= DASD_FEATURE_INITIAL_ONLINE; while (from <= to) { sprintf(bus_id, "%01x.%01x.%04x", from_id0, from_id1, from++); @@ -359,7 +381,7 @@ dasd_parse(void) * Add a devmap for the device specified by busid. It is possible that * the devmap already exists (dasd= parameter). The order of the devices * added through this function will define the kdevs for the individual - * devices. + * devices. */ static struct dasd_devmap * dasd_add_busid(char *bus_id, int features) @@ -368,7 +390,7 @@ dasd_add_busid(char *bus_id, int features) int hash; new = (struct dasd_devmap *) - kmalloc(sizeof(struct dasd_devmap), GFP_KERNEL); + kzalloc(sizeof(struct dasd_devmap), GFP_KERNEL); if (!new) return ERR_PTR(-ENOMEM); spin_lock(&dasd_devmap_lock); @@ -630,7 +652,8 @@ dasd_ro_show(struct device *dev, struct device_attribute *attr, char *buf) } static ssize_t -dasd_ro_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +dasd_ro_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct dasd_devmap *devmap; int ro_flag; @@ -658,7 +681,7 @@ static DEVICE_ATTR(readonly, 0644, dasd_ro_show, dasd_ro_store); * use_diag controls whether the driver should use diag rather than ssch * to talk to the device */ -static ssize_t +static ssize_t dasd_use_diag_show(struct device *dev, struct device_attribute *attr, char *buf) { struct dasd_devmap *devmap; @@ -673,7 +696,8 @@ dasd_use_diag_show(struct device *dev, struct device_attribute *attr, char *buf) } static ssize_t -dasd_use_diag_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +dasd_use_diag_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct dasd_devmap *devmap; ssize_t rc; @@ -697,11 +721,11 @@ dasd_use_diag_store(struct device *dev, struct device_attribute *attr, const cha return rc; } -static -DEVICE_ATTR(use_diag, 0644, dasd_use_diag_show, dasd_use_diag_store); +static DEVICE_ATTR(use_diag, 0644, dasd_use_diag_show, dasd_use_diag_store); static ssize_t -dasd_discipline_show(struct device *dev, struct device_attribute *attr, char *buf) +dasd_discipline_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct dasd_devmap *devmap; char *dname; @@ -834,6 +858,38 @@ static struct attribute_group dasd_attr_group = { .attrs = dasd_attrs, }; +/* + * Check if the related storage server is already contained in the + * dasd_serverlist. If server is not contained, create new entry. + * Return 0 if server was already in serverlist, + * 1 if the server was added successfully + * <0 in case of error. + */ +static int +dasd_add_server(struct dasd_uid *uid) +{ + struct dasd_servermap *new, *tmp; + + /* check if server is already contained */ + list_for_each_entry(tmp, &dasd_serverlist, list) + // normale cmp? + if (strncmp(tmp->sid.vendor, uid->vendor, + sizeof(tmp->sid.vendor)) == 0 + && strncmp(tmp->sid.serial, uid->serial, + sizeof(tmp->sid.serial)) == 0) + return 0; + + new = (struct dasd_servermap *) + kzalloc(sizeof(struct dasd_servermap), GFP_KERNEL); + if (!new) + return -ENOMEM; + + strncpy(new->sid.vendor, uid->vendor, sizeof(new->sid.vendor)); + strncpy(new->sid.serial, uid->serial, sizeof(new->sid.serial)); + list_add(&new->list, &dasd_serverlist); + return 1; +} + /* * Return copy of the device unique identifier. @@ -854,21 +910,26 @@ dasd_get_uid(struct ccw_device *cdev, struct dasd_uid *uid) /* * Register the given device unique identifier into devmap struct. + * Return 0 if server was already in serverlist, + * 1 if the server was added successful + * <0 in case of error. */ int dasd_set_uid(struct ccw_device *cdev, struct dasd_uid *uid) { struct dasd_devmap *devmap; + int rc; devmap = dasd_find_busid(cdev->dev.bus_id); if (IS_ERR(devmap)) return PTR_ERR(devmap); spin_lock(&dasd_devmap_lock); devmap->uid = *uid; + rc = dasd_add_server(uid); spin_unlock(&dasd_devmap_lock); - return 0; + return rc; } -EXPORT_SYMBOL(dasd_set_uid); +EXPORT_SYMBOL_GPL(dasd_set_uid); /* * Return value of the specified feature. @@ -880,7 +941,7 @@ dasd_get_feature(struct ccw_device *cdev, int feature) devmap = dasd_find_busid(cdev->dev.bus_id); if (IS_ERR(devmap)) - return (int) PTR_ERR(devmap); + return PTR_ERR(devmap); return ((devmap->features & feature) != 0); } @@ -896,7 +957,7 @@ dasd_set_feature(struct ccw_device *cdev, int feature, int flag) devmap = dasd_find_busid(cdev->dev.bus_id); if (IS_ERR(devmap)) - return (int) PTR_ERR(devmap); + return PTR_ERR(devmap); spin_lock(&dasd_devmap_lock); if (flag) @@ -932,8 +993,10 @@ dasd_devmap_init(void) dasd_max_devindex = 0; for (i = 0; i < 256; i++) INIT_LIST_HEAD(&dasd_hashlists[i]); - return 0; + /* Initialize servermap structure. */ + INIT_LIST_HEAD(&dasd_serverlist); + return 0; } void diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c index 3f9d704d265..23fa0b28917 100644 --- a/drivers/s390/block/dasd_diag.c +++ b/drivers/s390/block/dasd_diag.c @@ -1,4 +1,4 @@ -/* +/* * File...........: linux/drivers/s390/block/dasd_diag.c * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> * Based on.......: linux/drivers/s390/block/mdisk.c @@ -8,7 +8,6 @@ * */ -#include <linux/config.h> #include <linux/stddef.h> #include <linux/kernel.h> #include <linux/slab.h> @@ -336,7 +335,7 @@ dasd_diag_check_device(struct dasd_device *device) private = (struct dasd_diag_private *) device->private; if (private == NULL) { - private = kmalloc(sizeof(struct dasd_diag_private),GFP_KERNEL); + private = kzalloc(sizeof(struct dasd_diag_private),GFP_KERNEL); if (private == NULL) { DEV_MESSAGE(KERN_WARNING, device, "%s", "memory allocation failed for private data"); @@ -527,7 +526,7 @@ dasd_diag_build_cp(struct dasd_device * device, struct request *req) datasize, device); if (IS_ERR(cqr)) return cqr; - + dreq = (struct dasd_diag_req *) cqr->data; dreq->block_count = count; dbio = dreq->bio; diff --git a/drivers/s390/block/dasd_diag.h b/drivers/s390/block/dasd_diag.h index 38a4e55f895..b8c78267ff3 100644 --- a/drivers/s390/block/dasd_diag.h +++ b/drivers/s390/block/dasd_diag.h @@ -1,4 +1,4 @@ -/* +/* * File...........: linux/drivers/s390/block/dasd_diag.h * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> * Based on.......: linux/drivers/s390/block/mdisk.h diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 7d5a6cee4bd..2e655f46674 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -1,7 +1,7 @@ -/* +/* * File...........: linux/drivers/s390/block/dasd_eckd.c * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> - * Horst Hummel <Horst.Hummel@de.ibm.com> + * Horst Hummel <Horst.Hummel@de.ibm.com> * Carsten Otte <Cotte@de.ibm.com> * Martin Schwidefsky <schwidefsky@de.ibm.com> * Bugreports.to..: <Linux390@de.ibm.com> @@ -9,7 +9,6 @@ * */ -#include <linux/config.h> #include <linux/stddef.h> #include <linux/kernel.h> #include <linux/slab.h> @@ -24,6 +23,7 @@ #include <asm/io.h> #include <asm/todclk.h> #include <asm/uaccess.h> +#include <asm/cio.h> #include <asm/ccwdev.h> #include "dasd_int.h" @@ -89,17 +89,22 @@ dasd_eckd_probe (struct ccw_device *cdev) { int ret; - ret = dasd_generic_probe (cdev, &dasd_eckd_discipline); - if (ret) + /* set ECKD specific ccw-device options */ + ret = ccw_device_set_options(cdev, CCWDEV_ALLOW_FORCE); + if (ret) { + printk(KERN_WARNING + "dasd_eckd_probe: could not set ccw-device options " + "for %s\n", cdev->dev.bus_id); return ret; - ccw_device_set_options(cdev, CCWDEV_DO_PATHGROUP | CCWDEV_ALLOW_FORCE); - return 0; + } + ret = dasd_generic_probe(cdev, &dasd_eckd_discipline); + return ret; } static int dasd_eckd_set_online(struct ccw_device *cdev) { - return dasd_generic_set_online (cdev, &dasd_eckd_discipline); + return dasd_generic_set_online(cdev, &dasd_eckd_discipline); } static struct ccw_driver dasd_eckd_driver = { @@ -210,14 +215,14 @@ check_XRC (struct ccw1 *de_ccw, /* switch on System Time Stamp - needed for XRC Support */ if (private->rdc_data.facilities.XRC_supported) { - + data->ga_extended |= 0x08; /* switch on 'Time Stamp Valid' */ data->ga_extended |= 0x02; /* switch on 'Extended Parameter' */ - + data->ep_sys_time = get_clock (); - + de_ccw->count = sizeof (struct DE_eckd_data); - de_ccw->flags |= CCW_FLAG_SLI; + de_ccw->flags |= CCW_FLAG_SLI; } return; @@ -296,8 +301,8 @@ define_extent(struct ccw1 * ccw, struct DE_eckd_data * data, int trk, /* check for sequential prestage - enhance cylinder range */ if (data->attributes.operation == DASD_SEQ_PRESTAGE || data->attributes.operation == DASD_SEQ_ACCESS) { - - if (end.cyl + private->attrib.nr_cyl < geo.cyl) + + if (end.cyl + private->attrib.nr_cyl < geo.cyl) end.cyl += private->attrib.nr_cyl; else end.cyl = (geo.cyl - 1); @@ -317,7 +322,7 @@ locate_record(struct ccw1 *ccw, struct LO_eckd_data *data, int trk, struct dasd_eckd_private *private; int sector; int dn, d; - + private = (struct dasd_eckd_private *) device->private; DBF_DEV_EVENT(DBF_INFO, device, @@ -541,6 +546,86 @@ dasd_eckd_read_conf(struct dasd_device *device) } /* + * Build CP for Perform Subsystem Function - SSC. + */ +struct dasd_ccw_req * +dasd_eckd_build_psf_ssc(struct dasd_device *device) +{ + struct dasd_ccw_req *cqr; + struct dasd_psf_ssc_data *psf_ssc_data; + struct ccw1 *ccw; + + cqr = dasd_smalloc_request("ECKD", 1 /* PSF */ , + sizeof(struct dasd_psf_ssc_data), + device); + + if (IS_ERR(cqr)) { + DEV_MESSAGE(KERN_WARNING, device, "%s", + "Could not allocate PSF-SSC request"); + return cqr; + } + psf_ssc_data = (struct dasd_psf_ssc_data *)cqr->data; + psf_ssc_data->order = PSF_ORDER_SSC; + psf_ssc_data->suborder = 0x08; + + ccw = cqr->cpaddr; + ccw->cmd_code = DASD_ECKD_CCW_PSF; + ccw->cda = (__u32)(addr_t)psf_ssc_data; + ccw->count = 66; + + cqr->device = device; + cqr->expires = 10*HZ; + cqr->buildclk = get_clock(); + cqr->status = DASD_CQR_FILLED; + return cqr; +} + +/* + * Perform Subsystem Function. + * It is necessary to trigger CIO for channel revalidation since this + * call might change behaviour of DASD devices. + */ +static int +dasd_eckd_psf_ssc(struct dasd_device *device) +{ + struct dasd_ccw_req *cqr; + int rc; + + cqr = dasd_eckd_build_psf_ssc(device); + if (IS_ERR(cqr)) + return PTR_ERR(cqr); + + rc = dasd_sleep_on(cqr); + if (!rc) + /* trigger CIO to reprobe devices */ + css_schedule_reprobe(); + dasd_sfree_request(cqr, cqr->device); + return rc; +} + +/* + * Valide storage server of current device. + */ +static int +dasd_eckd_validate_server(struct dasd_device *device) +{ + int rc; + + /* Currently PAV is the only reason to 'validate' server on LPAR */ + if (dasd_nopav || MACHINE_IS_VM) + return 0; + + rc = dasd_eckd_psf_ssc(device); + if (rc) + /* may be requested feature is not available on server, + * therefore just report error and go ahead */ + DEV_MESSAGE(KERN_INFO, device, + "Perform Subsystem Function returned rc=%d", rc); + /* RE-Read Configuration Data */ + return dasd_eckd_read_conf(device); +} + +/* * Check device characteristics. * If the device is accessible using ECKD discipline, the device is enabled. */ @@ -554,7 +639,7 @@ dasd_eckd_check_characteristics(struct dasd_device *device) private = (struct dasd_eckd_private *) device->private; if (private == NULL) { - private = kmalloc(sizeof(struct dasd_eckd_private), + private = kzalloc(sizeof(struct dasd_eckd_private), GFP_KERNEL | GFP_DMA); if (private == NULL) { DEV_MESSAGE(KERN_WARNING, device, "%s", @@ -562,7 +647,6 @@ dasd_eckd_check_characteristics(struct dasd_device *device) "data"); return -ENOMEM; } - memset(private, 0, sizeof(struct dasd_eckd_private)); device->private = (void *) private; } /* Invalidate status of initial analysis. */ @@ -571,16 +655,29 @@ dasd_eckd_check_characteristics(struct dasd_device *device) private->attrib.operation = DASD_NORMAL_CACHE; private->attrib.nr_cyl = 0; + /* Read Configuration Data */ + rc = dasd_eckd_read_conf(device); + 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); + if (rc == 1) /* new server found */ + rc = dasd_eckd_validate_server(device); + if (rc) + return rc; + /* 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) { + if (rc) DEV_MESSAGE(KERN_WARNING, device, - "Read device characteristics returned error %d", - rc); - return rc; - } + "Read device characteristics returned " + "rc=%d", rc); DEV_MESSAGE(KERN_INFO, device, "%04X/%02X(CU:%04X/%02X) Cyl:%d Head:%d Sec:%d", @@ -591,19 +688,6 @@ dasd_eckd_check_characteristics(struct dasd_device *device) private->rdc_data.no_cyl, private->rdc_data.trk_per_cyl, private->rdc_data.sec_per_trk); - - /* Read Configuration Data */ - rc = dasd_eckd_read_conf (device); - 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; } @@ -773,7 +857,7 @@ dasd_eckd_end_analysis(struct dasd_device *device) ((private->rdc_data.no_cyl * private->rdc_data.trk_per_cyl * blk_per_trk * (device->bp_block >> 9)) >> 1), - ((blk_per_trk * device->bp_block) >> 10), + ((blk_per_trk * device->bp_block) >> 10), private->uses_cdl ? "compatible disk layout" : "linux disk layout"); @@ -970,7 +1054,7 @@ dasd_eckd_format_device(struct dasd_device * device, if (i < 3) { ect->kl = 4; ect->dl = sizes_trk0[i] - 4; - } + } } if ((fdata->intensity & 0x08) && fdata->start_unit == 1) { @@ -1270,7 +1354,7 @@ dasd_eckd_fill_info(struct dasd_device * device, /* * Release device ioctl. - * Buils a channel programm to releases a prior reserved + * Buils a channel programm to releases a prior reserved * (see dasd_eckd_reserve) device. */ static int @@ -1310,8 +1394,8 @@ dasd_eckd_release(struct dasd_device *device) /* * Reserve device ioctl. * Options are set to 'synchronous wait for interrupt' and - * 'timeout the request'. This leads to a terminate IO if - * the interrupt is outstanding for a certain time. + * 'timeout the request'. This leads to a terminate IO if + * the interrupt is outstanding for a certain time. */ static int dasd_eckd_reserve(struct dasd_device *device) @@ -1349,7 +1433,7 @@ dasd_eckd_reserve(struct dasd_device *device) /* * Steal lock ioctl - unconditional reserve device. - * Buils a channel programm to break a device's reservation. + * Buils a channel programm to break a device's reservation. * (unconditional reserve) */ static int @@ -1522,6 +1606,40 @@ dasd_eckd_ioctl(struct dasd_device *device, unsigned int cmd, void __user *argp) } /* + * Dump the range of CCWs into 'page' buffer + * and return number of printed chars. + */ +static inline int +dasd_eckd_dump_ccw_range(struct ccw1 *from, struct ccw1 *to, char *page) +{ + int len, count; + char *datap; + + len = 0; + while (from <= to) { + len += sprintf(page + len, KERN_ERR PRINTK_HEADER + " CCW %p: %08X %08X DAT:", + from, ((int *) from)[0], ((int *) from)[1]); + + /* get pointer to data (consider IDALs) */ + if (from->flags & CCW_FLAG_IDA) + datap = (char *) *((addr_t *) (addr_t) from->cda); + else + datap = (char *) ((addr_t) from->cda); + + /* dump data (max 32 bytes) */ + for (count = 0; count < from->count && count < 32; count++) { + if (count % 8 == 0) len += sprintf(page + len, " "); + if (count % 4 == 0) len += sprintf(page + len, " "); + len += sprintf(page + len, "%02x", datap[count]); + } + len += sprintf(page + len, "\n"); + from++; + } + return len; +} + +/* * Print sense data and related channel program. * Parts are printed because printk buffer is only 1024 bytes. */ @@ -1530,8 +1648,8 @@ dasd_eckd_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req, struct irb *irb) { char *page; - struct ccw1 *act, *end, *last; - int len, sl, sct, count; + struct ccw1 *first, *last, *fail, *from, *to; + int len, sl, sct; page = (char *) get_zeroed_page(GFP_ATOMIC); if (page == NULL) { @@ -1539,7 +1657,8 @@ dasd_eckd_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req, "No memory to dump sense data"); return; } - len = sprintf(page, KERN_ERR PRINTK_HEADER + /* dump the sense data */ + len = sprintf(page, KERN_ERR PRINTK_HEADER " I/O status report for device %s:\n", device->cdev->dev.bus_id); len += sprintf(page + len, KERN_ERR PRINTK_HEADER @@ -1564,87 +1683,55 @@ dasd_eckd_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req, if (irb->ecw[27] & DASD_SENSE_BIT_0) { /* 24 Byte Sense Data */ - len += sprintf(page + len, KERN_ERR PRINTK_HEADER - " 24 Byte: %x MSG %x, " - "%s MSGb to SYSOP\n", - irb->ecw[7] >> 4, irb->ecw[7] & 0x0f, - irb->ecw[1] & 0x10 ? "" : "no"); + sprintf(page + len, KERN_ERR PRINTK_HEADER + " 24 Byte: %x MSG %x, " + "%s MSGb to SYSOP\n", + irb->ecw[7] >> 4, irb->ecw[7] & 0x0f, + irb->ecw[1] & 0x10 ? "" : "no"); } else { /* 32 Byte Sense Data */ - len += sprintf(page + len, KERN_ERR PRINTK_HEADER - " 32 Byte: Format: %x " - "Exception class %x\n", - irb->ecw[6] & 0x0f, irb->ecw[22] >> 4); + sprintf(page + len, KERN_ERR PRINTK_HEADER + " 32 Byte: Format: %x " + "Exception class %x\n", + irb->ecw[6] & 0x0f, irb->ecw[22] >> 4); } } else { - len += sprintf(page + len, KERN_ERR PRINTK_HEADER - " SORRY - NO VALID SENSE AVAILABLE\n"); + sprintf(page + len, KERN_ERR PRINTK_HEADER + " SORRY - NO VALID SENSE AVAILABLE\n"); } - MESSAGE_LOG(KERN_ERR, "%s", - page + sizeof(KERN_ERR PRINTK_HEADER)); - - /* dump the Channel Program */ - /* print first CCWs (maximum 8) */ - act = req->cpaddr; - for (last = act; last->flags & (CCW_FLAG_CC | CCW_FLAG_DC); last++); - end = min(act + 8, last); - len = sprintf(page, KERN_ERR PRINTK_HEADER + printk("%s", page); + + /* dump the Channel Program (max 140 Bytes per line) */ + /* Count CCW and print first CCWs (maximum 1024 % 140 = 7) */ + first = req->cpaddr; + for (last = first; last->flags & (CCW_FLAG_CC | CCW_FLAG_DC); last++); + to = min(first + 6, last); + len = sprintf(page, KERN_ERR PRINTK_HEADER " Related CP in req: %p\n", req); - while (act <= end) { - len += sprintf(page + len, KERN_ERR PRINTK_HEADER - " CCW %p: %08X %08X DAT:", - act, ((int *) act)[0], ((int *) act)[1]); - for (count = 0; count < 32 && count < act->count; - count += sizeof(int)) - len += sprintf(page + len, " %08X", - ((int *) (addr_t) act->cda) - [(count>>2)]); - len += sprintf(page + len, "\n"); - act++; - } - MESSAGE_LOG(KERN_ERR, "%s", - page + sizeof(KERN_ERR PRINTK_HEADER)); + dasd_eckd_dump_ccw_range(first, to, page + len); + printk("%s", page); - /* print failing CCW area */ + /* print failing CCW area (maximum 4) */ + /* scsw->cda is either valid or zero */ len = 0; - if (act < ((struct ccw1 *)(addr_t) irb->scsw.cpa) - 2) { - act = ((struct ccw1 *)(addr_t) irb->scsw.cpa) - 2; - len += sprintf(page + len, KERN_ERR PRINTK_HEADER "......\n"); - } - end = min((struct ccw1 *)(addr_t) irb->scsw.cpa + 2, last); - while (act <= end) { - len += sprintf(page + len, KERN_ERR PRINTK_HEADER - " CCW %p: %08X %08X DAT:", - act, ((int *) act)[0], ((int *) act)[1]); - for (count = 0; count < 32 && count < act->count; - count += sizeof(int)) - len += sprintf(page + len, " %08X", - ((int *) (addr_t) act->cda) - [(count>>2)]); - len += sprintf(page + len, "\n"); - act++; + from = ++to; + fail = (struct ccw1 *)(addr_t) irb->scsw.cpa; /* failing CCW */ + if (from < fail - 2) { + from = fail - 2; /* there is a gap - print header */ + len += sprintf(page, KERN_ERR PRINTK_HEADER "......\n"); } + to = min(fail + 1, last); + len += dasd_eckd_dump_ccw_range(from, to, page + len); - /* print last CCWs */ - if (act < last - 2) { - act = last - 2; + /* print last CCWs (maximum 2) */ + from = max(from, ++to); + if (from < last - 1) { + from = last - 1; /* there is a gap - print header */ len += sprintf(page + len, KERN_ERR PRINTK_HEADER "......\n"); } - while (act <= last) { - len += sprintf(page + len, KERN_ERR PRINTK_HEADER - " CCW %p: %08X %08X DAT:", - act, ((int *) act)[0], ((int *) act)[1]); - for (count = 0; count < 32 && count < act->count; - count += sizeof(int)) - len += sprintf(page + len, " %08X", - ((int *) (addr_t) act->cda) - [(count>>2)]); - len += sprintf(page + len, "\n"); - act++; - } + len += dasd_eckd_dump_ccw_range(from, last, page + len); if (len > 0) - MESSAGE_LOG(KERN_ERR, "%s", - page + sizeof(KERN_ERR PRINTK_HEADER)); + printk("%s", page); free_page((unsigned long) page); } @@ -1685,14 +1772,8 @@ static struct dasd_discipline dasd_eckd_discipline = { static int __init dasd_eckd_init(void) { - int ret; - ASCEBC(dasd_eckd_discipline.ebcname, 4); - - ret = ccw_driver_register(&dasd_eckd_driver); - if (!ret) - dasd_generic_auto_online(&dasd_eckd_driver); - return ret; + return ccw_driver_register(&dasd_eckd_driver); } static void __exit @@ -1703,22 +1784,3 @@ dasd_eckd_cleanup(void) module_init(dasd_eckd_init); module_exit(dasd_eckd_cleanup); - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-indent-level: 4 - * c-brace-imaginary-offset: 0 - * c-brace-offset: -4 - * c-argdecl-indent: 4 - * c-label-offset: -4 - * c-continued-statement-offset: 4 - * c-continued-brace-offset: 0 - * indent-tabs-mode: 1 - * tab-width: 8 - * End: - */ diff --git a/drivers/s390/block/dasd_eckd.h b/drivers/s390/block/dasd_eckd.h index d5734e976e1..712ff165013 100644 --- a/drivers/s390/block/dasd_eckd.h +++ b/drivers/s390/block/dasd_eckd.h @@ -1,7 +1,7 @@ -/* +/* * File...........: linux/drivers/s390/block/dasd_eckd.h * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> - * Horst Hummel <Horst.Hummel@de.ibm.com> + * Horst Hummel <Horst.Hummel@de.ibm.com> * Bugreports.to..: <Linux390@de.ibm.com> * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000 * @@ -41,9 +41,10 @@ #define DASD_ECKD_CCW_RESERVE 0xB4 /* - *Perform Subsystem Function / Sub-Orders + * Perform Subsystem Function / Sub-Orders */ -#define PSF_ORDER_PRSSD 0x18 +#define PSF_ORDER_PRSSD 0x18 +#define PSF_ORDER_SSC 0x1D /***************************************************************************** * SECTION: Type Definitions @@ -155,7 +156,7 @@ struct dasd_eckd_characteristics { unsigned char reserved2:4; unsigned char reserved3:8; unsigned char defect_wr:1; - unsigned char XRC_supported:1; + unsigned char XRC_supported:1; unsigned char reserved4:1; unsigned char striping:1; unsigned char reserved5:4; @@ -343,7 +344,7 @@ struct dasd_eckd_path { }; /* - * Perform Subsystem Function - Prepare for Read Subsystem Data + * Perform Subsystem Function - Prepare for Read Subsystem Data */ struct dasd_psf_prssd_data { unsigned char order; @@ -353,4 +354,15 @@ struct dasd_psf_prssd_data { unsigned char varies[9]; } __attribute__ ((packed)); +/* + * Perform Subsystem Function - Set Subsystem Characteristics + */ +struct dasd_psf_ssc_data { + unsigned char order; + unsigned char flags; + unsigned char cu_type[4]; + unsigned char suborder; + unsigned char reserved[59]; +} __attribute__((packed)); + #endif /* DASD_ECKD_H */ diff --git a/drivers/s390/block/dasd_eer.c b/drivers/s390/block/dasd_eer.c index 2d946b6ca07..da65f1b032f 100644 --- a/drivers/s390/block/dasd_eer.c +++ b/drivers/s390/block/dasd_eer.c @@ -89,7 +89,7 @@ struct eerbuffer { }; static LIST_HEAD(bufferlist); -static spinlock_t bufferlock = SPIN_LOCK_UNLOCKED; +static DEFINE_SPINLOCK(bufferlock); static DECLARE_WAIT_QUEUE_HEAD(dasd_eer_read_wait_queue); /* @@ -276,7 +276,7 @@ struct dasd_eer_header { __u64 tv_sec; __u64 tv_usec; char busid[DASD_EER_BUSID_SIZE]; -}; +} __attribute__ ((packed)); /* * The following function can be used for those triggers that have @@ -521,6 +521,8 @@ static int dasd_eer_open(struct inode *inp, struct file *filp) unsigned long flags; eerb = kzalloc(sizeof(struct eerbuffer), GFP_KERNEL); + if (!eerb) + return -ENOMEM; eerb->buffer_page_count = eer_pages; if (eerb->buffer_page_count < 1 || eerb->buffer_page_count > INT_MAX / PAGE_SIZE) { diff --git a/drivers/s390/block/dasd_erp.c b/drivers/s390/block/dasd_erp.c index b842377cb0c..58a65097922 100644 --- a/drivers/s390/block/dasd_erp.c +++ b/drivers/s390/block/dasd_erp.c @@ -9,7 +9,6 @@ * */ -#include <linux/config.h> #include <linux/ctype.h> #include <linux/init.h> @@ -90,7 +89,7 @@ dasd_default_erp_action(struct dasd_ccw_req * cqr) /* just retry - there is nothing to save ... I got no sense data.... */ if (cqr->retries > 0) { - DEV_MESSAGE (KERN_DEBUG, device, + DEV_MESSAGE (KERN_DEBUG, device, "default ERP called (%i retries left)", cqr->retries); cqr->lpm = LPM_ANYPATH; @@ -155,7 +154,7 @@ dasd_default_erp_postaction(struct dasd_ccw_req * cqr) /* * Print the hex dump of the memory used by a request. This includes - * all error recovery ccws that have been chained in from of the + * all error recovery ccws that have been chained in from of the * real request. */ static inline void @@ -227,12 +226,12 @@ dasd_log_ccw(struct dasd_ccw_req * cqr, int caller, __u32 cpa) /* * Log bytes arround failed CCW but only if we did * not log the whole CP of the CCW is outside the - * logged CP. + * logged CP. */ if (cplength > 40 || ((addr_t) cpa < (addr_t) lcqr->cpaddr && (addr_t) cpa > (addr_t) (lcqr->cpaddr + cplength + 4))) { - + DEV_MESSAGE(KERN_ERR, device, "Failed CCW (%p) (area):", (void *) (long) cpa); diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c index 91145698f8e..808434d3852 100644 --- a/drivers/s390/block/dasd_fba.c +++ b/drivers/s390/block/dasd_fba.c @@ -1,4 +1,4 @@ -/* +/* * File...........: linux/drivers/s390/block/dasd_fba.c * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> * Bugreports.to..: <Linux390@de.ibm.com> @@ -6,7 +6,6 @@ * */ -#include <linux/config.h> #include <linux/stddef.h> #include <linux/kernel.h> #include <asm/debug.h> @@ -56,19 +55,13 @@ static struct ccw_driver dasd_fba_driver; /* see below */ static int dasd_fba_probe(struct ccw_device *cdev) { - int ret; - - ret = dasd_generic_probe (cdev, &dasd_fba_discipline); - if (ret) - return ret; - ccw_device_set_options(cdev, CCWDEV_DO_PATHGROUP); - return 0; + return dasd_generic_probe(cdev, &dasd_fba_discipline); } static int dasd_fba_set_online(struct ccw_device *cdev) { - return dasd_generic_set_online (cdev, &dasd_fba_discipline); + return dasd_generic_set_online(cdev, &dasd_fba_discipline); } static struct ccw_driver dasd_fba_driver = { @@ -125,13 +118,13 @@ static int dasd_fba_check_characteristics(struct dasd_device *device) { struct dasd_fba_private *private; - struct ccw_device *cdev = device->cdev; + struct ccw_device *cdev = device->cdev; void *rdc_data; int rc; private = (struct dasd_fba_private *) device->private; if (private == NULL) { - private = kmalloc(sizeof(struct dasd_fba_private), GFP_KERNEL); + private = kzalloc(sizeof(struct dasd_fba_private), GFP_KERNEL); if (private == NULL) { DEV_MESSAGE(KERN_WARNING, device, "%s", "memory allocation failed for private " @@ -204,7 +197,7 @@ dasd_fba_examine_error(struct dasd_ccw_req * cqr, struct irb * irb) if (irb->scsw.cstat == 0x00 && irb->scsw.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END)) return dasd_era_none; - + cdev = device->cdev; switch (cdev->id.dev_type) { case 0x3370: @@ -539,7 +532,7 @@ dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req, * 8192 bytes (=2 pages). For 64 bit one dasd_mchunkt_t structure has * 24 bytes, the struct dasd_ccw_req has 136 bytes and each block can use * up to 16 bytes (8 for the ccw and 8 for the idal pointer). In - * addition we have one define extent ccw + 16 bytes of data and a + * addition we have one define extent ccw + 16 bytes of data and a * locate record ccw for each block (stupid devices!) + 16 bytes of data. * That makes: * (8192 - 24 - 136 - 8 - 16) / 40 = 200.2 blocks at maximum. @@ -569,16 +562,8 @@ static struct dasd_discipline dasd_fba_discipline = { static int __init dasd_fba_init(void) { - int ret; - ASCEBC(dasd_fba_discipline.ebcname, 4); - - ret = ccw_driver_register(&dasd_fba_driver); - if (ret) - return ret; - - dasd_generic_auto_online(&dasd_fba_driver); - return 0; + return ccw_driver_register(&dasd_fba_driver); } static void __exit @@ -589,22 +574,3 @@ dasd_fba_cleanup(void) module_init(dasd_fba_init); module_exit(dasd_fba_cleanup); - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-indent-level: 4 - * c-brace-imaginary-offset: 0 - * c-brace-offset: -4 - * c-argdecl-indent: 4 - * c-label-offset: -4 - * c-continued-statement-offset: 4 - * c-continued-brace-offset: 0 - * indent-tabs-mode: 1 - * tab-width: 8 - * End: - */ diff --git a/drivers/s390/block/dasd_fba.h b/drivers/s390/block/dasd_fba.h index da1fa91fc01..14c910baa5f 100644 --- a/drivers/s390/block/dasd_fba.h +++ b/drivers/s390/block/dasd_fba.h @@ -1,4 +1,4 @@ -/* +/* * File...........: linux/drivers/s390/block/dasd_fba.h * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> * Bugreports.to..: <Linux390@de.ibm.com> diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c index fce2835e7d1..12c7d296eaa 100644 --- a/drivers/s390/block/dasd_genhd.c +++ b/drivers/s390/block/dasd_genhd.c @@ -11,7 +11,6 @@ * */ -#include <linux/config.h> #include <linux/interrupt.h> #include <linux/fs.h> #include <linux/blkpg.h> @@ -68,8 +67,6 @@ dasd_gendisk_alloc(struct dasd_device *device) } len += sprintf(gdp->disk_name + len, "%c", 'a'+(device->devindex%26)); - sprintf(gdp->devfs_name, "dasd/%s", device->cdev->dev.bus_id); - if (device->features & DASD_FEATURE_READONLY) set_disk_ro(gdp, 1); gdp->private_data = device; diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h index d4b13e300a7..3ccf06d28ba 100644 --- a/drivers/s390/block/dasd_int.h +++ b/drivers/s390/block/dasd_int.h @@ -1,7 +1,7 @@ -/* +/* * File...........: linux/drivers/s390/block/dasd_int.h * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> - * Horst Hummel <Horst.Hummel@de.ibm.com> + * Horst Hummel <Horst.Hummel@de.ibm.com> * Martin Schwidefsky <schwidefsky@de.ibm.com> * Bugreports.to..: <Linux390@de.ibm.com> * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000 @@ -54,7 +54,6 @@ #include <linux/module.h> #include <linux/wait.h> #include <linux/blkdev.h> -#include <linux/devfs_fs_kernel.h> #include <linux/genhd.h> #include <linux/hdreg.h> #include <linux/interrupt.h> @@ -186,7 +185,7 @@ struct dasd_ccw_req { void *callback_data; }; -/* +/* * dasd_ccw_req -> status can be: */ #define DASD_CQR_FILLED 0x00 /* request is ready to be processed */ @@ -248,7 +247,7 @@ struct dasd_discipline { /* * Error recovery functions. examine_error() returns a value that * indicates what to do for an error condition. If examine_error() - * returns 'dasd_era_recover' erp_action() is called to create a + * returns 'dasd_era_recover' erp_action() is called to create a * special error recovery ccw. erp_postaction() is called after * an error recovery ccw has finished its execution. dump_sense * is called for every error condition to print the sense data @@ -302,11 +301,11 @@ struct dasd_device { spinlock_t request_queue_lock; struct block_device *bdev; unsigned int devindex; - unsigned long blocks; /* size of volume in blocks */ - unsigned int bp_block; /* bytes per block */ - unsigned int s2b_shift; /* log2 (bp_block/512) */ - unsigned long flags; /* per device flags */ - unsigned short features; /* copy of devmap-features (read-only!) */ + unsigned long blocks; /* size of volume in blocks */ + unsigned int bp_block; /* bytes per block */ + unsigned int s2b_shift; /* log2 (bp_block/512) */ + unsigned long flags; /* per device flags */ + unsigned short features; /* copy of devmap-features (read-only!) */ /* extended error reporting stuff (eer) */ struct dasd_ccw_req *eer_cqr; @@ -513,12 +512,12 @@ void dasd_generic_remove (struct ccw_device *cdev); int dasd_generic_set_online(struct ccw_device *, struct dasd_discipline *); int dasd_generic_set_offline (struct ccw_device *cdev); int dasd_generic_notify(struct ccw_device *, int); -void dasd_generic_auto_online (struct ccw_driver *); /* externals in dasd_devmap.c */ extern int dasd_max_devindex; extern int dasd_probeonly; extern int dasd_autodetect; +extern int dasd_nopav; int dasd_devmap_init(void); void dasd_devmap_exit(void); @@ -606,22 +605,3 @@ static inline int dasd_eer_enabled(struct dasd_device *device) #endif /* __KERNEL__ */ #endif /* DASD_H */ - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-indent-level: 4 - * c-brace-imaginary-offset: 0 - * c-brace-offset: -4 - * c-argdecl-indent: 4 - * c-label-offset: -4 - * c-continued-statement-offset: 4 - * c-continued-brace-offset: 0 - * indent-tabs-mode: 1 - * tab-width: 8 - * End: - */ diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c index b8c80d28df4..e97f5316ad2 100644 --- a/drivers/s390/block/dasd_ioctl.c +++ b/drivers/s390/block/dasd_ioctl.c @@ -9,7 +9,6 @@ * * i/o controls for the dasd driver. */ -#include <linux/config.h> #include <linux/interrupt.h> #include <linux/major.h> #include <linux/fs.h> @@ -90,10 +89,10 @@ static int dasd_ioctl_quiesce(struct dasd_device *device) { unsigned long flags; - + if (!capable (CAP_SYS_ADMIN)) return -EACCES; - + DEV_MESSAGE (KERN_DEBUG, device, "%s", "Quiesce IO on device"); spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); @@ -110,13 +109,13 @@ static int dasd_ioctl_resume(struct dasd_device *device) { unsigned long flags; - - if (!capable (CAP_SYS_ADMIN)) + + if (!capable (CAP_SYS_ADMIN)) return -EACCES; DEV_MESSAGE (KERN_DEBUG, device, "%s", "resume IO on device"); - + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); device->stopped &= ~DASD_STOPPED_QUIESCE; spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); @@ -287,7 +286,7 @@ dasd_ioctl_information(struct dasd_device *device, dasd_info->open_count = atomic_read(&device->open_count); if (!device->bdev) dasd_info->open_count++; - + /* * check if device is really formatted * LDL / CDL was returned by 'fill_info' diff --git a/drivers/s390/block/dasd_proc.c b/drivers/s390/block/dasd_proc.c index ad23aede356..bfa010f6dab 100644 --- a/drivers/s390/block/dasd_proc.c +++ b/drivers/s390/block/dasd_proc.c @@ -11,7 +11,6 @@ * */ -#include <linux/config.h> #include <linux/ctype.h> #include <linux/seq_file.h> #include <linux/vmalloc.h> diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c index 54ecd548c31..4c1e56b9b98 100644 --- a/drivers/s390/block/xpram.c +++ b/drivers/s390/block/xpram.c @@ -36,7 +36,6 @@ #include <linux/hdreg.h> /* HDIO_GETGEO */ #include <linux/sysdev.h> #include <linux/bio.h> -#include <linux/devfs_fs_kernel.h> #include <asm/uaccess.h> #define XPRAM_NAME "xpram" @@ -439,8 +438,6 @@ static int __init xpram_setup_blkdev(void) if (rc < 0) goto out; - devfs_mk_dir("slram"); - /* * Assign the other needed values: make request function, sizes and * hardsect size. All the minor devices feature the same value. @@ -469,14 +466,12 @@ static int __init xpram_setup_blkdev(void) disk->private_data = &xpram_devices[i]; disk->queue = xpram_queue; sprintf(disk->disk_name, "slram%d", i); - sprintf(disk->devfs_name, "slram/%d", i); set_capacity(disk, xpram_sizes[i] << 1); add_disk(disk); } return 0; out_unreg: - devfs_remove("slram"); unregister_blkdev(XPRAM_MAJOR, XPRAM_NAME); out: while (i--) @@ -495,7 +490,6 @@ static void __exit xpram_exit(void) put_disk(xpram_disks[i]); } unregister_blkdev(XPRAM_MAJOR, XPRAM_NAME); - devfs_remove("slram"); blk_cleanup_queue(xpram_queue); sysdev_unregister(&xpram_sys_device); sysdev_class_unregister(&xpram_sysclass); diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c index 606f6ad285a..f25c6d116f6 100644 --- a/drivers/s390/char/con3215.c +++ b/drivers/s390/char/con3215.c @@ -11,7 +11,6 @@ * Dan Morrison, IBM Corporation (dmorriso@cse.buffalo.edu) */ -#include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/kdev_t.h> diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c index ef607a1de55..7566be89068 100644 --- a/drivers/s390/char/con3270.c +++ b/drivers/s390/char/con3270.c @@ -8,7 +8,6 @@ * -- Copyright (C) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation */ -#include <linux/config.h> #include <linux/bootmem.h> #include <linux/console.h> #include <linux/init.h> diff --git a/drivers/s390/char/ctrlchar.c b/drivers/s390/char/ctrlchar.c index be463242cf0..0ea6f36a252 100644 --- a/drivers/s390/char/ctrlchar.c +++ b/drivers/s390/char/ctrlchar.c @@ -7,7 +7,6 @@ * */ -#include <linux/config.h> #include <linux/stddef.h> #include <asm/errno.h> #include <linux/sysrq.h> diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c index a6415377bc7..6099c14de42 100644 --- a/drivers/s390/char/fs3270.c +++ b/drivers/s390/char/fs3270.c @@ -8,7 +8,6 @@ * -- Copyright (C) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation */ -#include <linux/config.h> #include <linux/bootmem.h> #include <linux/console.h> #include <linux/init.h> diff --git a/drivers/s390/char/keyboard.c b/drivers/s390/char/keyboard.c index d4d2ff0a9da..547ef906ae2 100644 --- a/drivers/s390/char/keyboard.c +++ b/drivers/s390/char/keyboard.c @@ -7,7 +7,6 @@ * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com), */ -#include <linux/config.h> #include <linux/module.h> #include <linux/sched.h> #include <linux/sysrq.h> diff --git a/drivers/s390/char/monreader.c b/drivers/s390/char/monreader.c index fb7bc9e5eeb..a138b151009 100644 --- a/drivers/s390/char/monreader.c +++ b/drivers/s390/char/monreader.c @@ -586,7 +586,6 @@ static struct file_operations mon_fops = { static struct miscdevice mon_dev = { .name = "monreader", - .devfs_name = "monreader", .fops = &mon_fops, .minor = MISC_DYNAMIC_MINOR, }; diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c index eecb2afad5c..e95b56f810d 100644 --- a/drivers/s390/char/raw3270.c +++ b/drivers/s390/char/raw3270.c @@ -8,7 +8,6 @@ * -- Copyright (C) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation */ -#include <linux/config.h> #include <linux/bootmem.h> #include <linux/module.h> #include <linux/err.h> @@ -50,6 +49,9 @@ struct raw3270 { unsigned char *ascebc; /* ascii -> ebcdic table */ struct class_device *clttydev; /* 3270-class tty device ptr */ struct class_device *cltubdev; /* 3270-class tub device ptr */ + + struct raw3270_request init_request; + unsigned char init_data[256]; }; /* raw3270->flags */ @@ -484,8 +486,6 @@ struct raw3270_ua { /* Query Reply structure for Usable Area */ } __attribute__ ((packed)) aua; } __attribute__ ((packed)); -static unsigned char raw3270_init_data[256]; -static struct raw3270_request raw3270_init_request; static struct diag210 raw3270_init_diag210; static DECLARE_MUTEX(raw3270_init_sem); @@ -644,17 +644,17 @@ __raw3270_size_device(struct raw3270 *rp) * required (3270 device switched to 'stand-by') and command * rejects (old devices that can't do 'read partition'). */ - memset(&raw3270_init_request, 0, sizeof(raw3270_init_request)); - memset(raw3270_init_data, 0, sizeof(raw3270_init_data)); - /* Store 'read partition' data stream to raw3270_init_data */ - memcpy(raw3270_init_data, wbuf, sizeof(wbuf)); - INIT_LIST_HEAD(&raw3270_init_request.list); - raw3270_init_request.ccw.cmd_code = TC_WRITESF; - raw3270_init_request.ccw.flags = CCW_FLAG_SLI; - raw3270_init_request.ccw.count = sizeof(wbuf); - raw3270_init_request.ccw.cda = (__u32) __pa(raw3270_init_data); - - rc = raw3270_start_init(rp, &raw3270_init_view, &raw3270_init_request); + memset(&rp->init_request, 0, sizeof(rp->init_request)); + memset(&rp->init_data, 0, 256); + /* Store 'read partition' data stream to init_data */ + memcpy(&rp->init_data, wbuf, sizeof(wbuf)); + INIT_LIST_HEAD(&rp->init_request.list); + rp->init_request.ccw.cmd_code = TC_WRITESF; + rp->init_request.ccw.flags = CCW_FLAG_SLI; + rp->init_request.ccw.count = sizeof(wbuf); + rp->init_request.ccw.cda = (__u32) __pa(&rp->init_data); + + rc = raw3270_start_init(rp, &raw3270_init_view, &rp->init_request); if (rc) /* Check error cases: -ERESTARTSYS, -EIO and -EOPNOTSUPP */ return rc; @@ -679,18 +679,18 @@ __raw3270_size_device(struct raw3270 *rp) * The device accepted the 'read partition' command. Now * set up a read ccw and issue it. */ - raw3270_init_request.ccw.cmd_code = TC_READMOD; - raw3270_init_request.ccw.flags = CCW_FLAG_SLI; - raw3270_init_request.ccw.count = sizeof(raw3270_init_data); - raw3270_init_request.ccw.cda = (__u32) __pa(raw3270_init_data); - rc = raw3270_start_init(rp, &raw3270_init_view, &raw3270_init_request); + rp->init_request.ccw.cmd_code = TC_READMOD; + rp->init_request.ccw.flags = CCW_FLAG_SLI; + rp->init_request.ccw.count = sizeof(rp->init_data); + rp->init_request.ccw.cda = (__u32) __pa(rp->init_data); + rc = raw3270_start_init(rp, &raw3270_init_view, &rp->init_request); if (rc) return rc; /* Got a Query Reply */ - count = sizeof(raw3270_init_data) - raw3270_init_request.rescnt; - uap = (struct raw3270_ua *) (raw3270_init_data + 1); + count = sizeof(rp->init_data) - rp->init_request.rescnt; + uap = (struct raw3270_ua *) (rp->init_data + 1); /* Paranoia check. */ - if (raw3270_init_data[0] != 0x88 || uap->uab.qcode != 0x81) + if (rp->init_data[0] != 0x88 || uap->uab.qcode != 0x81) return -EOPNOTSUPP; /* Copy rows/columns of default Usable Area */ rp->rows = uap->uab.h; @@ -749,18 +749,18 @@ raw3270_reset_device(struct raw3270 *rp) int rc; down(&raw3270_init_sem); - memset(&raw3270_init_request, 0, sizeof(raw3270_init_request)); - memset(raw3270_init_data, 0, sizeof(raw3270_init_data)); - /* Store reset data stream to raw3270_init_data/raw3270_init_request */ - raw3270_init_data[0] = TW_KR; - INIT_LIST_HEAD(&raw3270_init_request.list); - raw3270_init_request.ccw.cmd_code = TC_EWRITEA; - raw3270_init_request.ccw.flags = CCW_FLAG_SLI; - raw3270_init_request.ccw.count = 1; - raw3270_init_request.ccw.cda = (__u32) __pa(raw3270_init_data); + memset(&rp->init_request, 0, sizeof(rp->init_request)); + memset(&rp->init_data, 0, sizeof(rp->init_data)); + /* Store reset data stream to init_data/init_request */ + rp->init_data[0] = TW_KR; + INIT_LIST_HEAD(&rp->init_request.list); + rp->init_request.ccw.cmd_code = TC_EWRITEA; + rp->init_request.ccw.flags = CCW_FLAG_SLI; + rp->init_request.ccw.count = 1; + rp->init_request.ccw.cda = (__u32) __pa(rp->init_data); rp->view = &raw3270_init_view; raw3270_init_view.dev = rp; - rc = raw3270_start_init(rp, &raw3270_init_view, &raw3270_init_request); + rc = raw3270_start_init(rp, &raw3270_init_view, &rp->init_request); raw3270_init_view.dev = 0; rp->view = 0; up(&raw3270_init_sem); @@ -854,7 +854,7 @@ raw3270_setup_console(struct ccw_device *cdev) char *ascebc; int rc; - rp = (struct raw3270 *) alloc_bootmem(sizeof(struct raw3270)); + rp = (struct raw3270 *) alloc_bootmem_low(sizeof(struct raw3270)); ascebc = (char *) alloc_bootmem(256); rc = raw3270_setup_device(cdev, rp, ascebc); if (rc) @@ -895,7 +895,7 @@ raw3270_create_device(struct ccw_device *cdev) char *ascebc; int rc; - rp = kmalloc(sizeof(struct raw3270), GFP_KERNEL); + rp = kmalloc(sizeof(struct raw3270), GFP_KERNEL | GFP_DMA); if (!rp) return ERR_PTR(-ENOMEM); ascebc = kmalloc(256, GFP_KERNEL); diff --git a/drivers/s390/char/sclp_con.c b/drivers/s390/char/sclp_con.c index 10ef22f1354..86864f64171 100644 --- a/drivers/s390/char/sclp_con.c +++ b/drivers/s390/char/sclp_con.c @@ -8,7 +8,6 @@ * Martin Schwidefsky <schwidefsky@de.ibm.com> */ -#include <linux/config.h> #include <linux/kmod.h> #include <linux/console.h> #include <linux/init.h> diff --git a/drivers/s390/char/sclp_cpi.c b/drivers/s390/char/sclp_cpi.c index 80f7f31310e..732dfbdb85c 100644 --- a/drivers/s390/char/sclp_cpi.c +++ b/drivers/s390/char/sclp_cpi.c @@ -5,7 +5,6 @@ * SCLP Control-Program Identification. */ -#include <linux/config.h> #include <linux/version.h> #include <linux/kmod.h> #include <linux/module.h> diff --git a/drivers/s390/char/sclp_quiesce.c b/drivers/s390/char/sclp_quiesce.c index 56fa6916889..32004aae95c 100644 --- a/drivers/s390/char/sclp_quiesce.c +++ b/drivers/s390/char/sclp_quiesce.c @@ -7,12 +7,12 @@ * Peter Oberparleiter <peter.oberparleiter@de.ibm.com> */ -#include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/cpumask.h> #include <linux/smp.h> #include <linux/init.h> +#include <linux/reboot.h> #include <asm/atomic.h> #include <asm/ptrace.h> #include <asm/sigp.h> @@ -66,8 +66,6 @@ do_machine_quiesce(void) } #endif -extern void ctrl_alt_del(void); - /* Handler for quiesce event. Start shutdown procedure. */ static void sclp_quiesce_handler(struct evbuf_header *evbuf) diff --git a/drivers/s390/char/sclp_rw.c b/drivers/s390/char/sclp_rw.c index 91e93c78f57..0c92d3909cc 100644 --- a/drivers/s390/char/sclp_rw.c +++ b/drivers/s390/char/sclp_rw.c @@ -8,7 +8,6 @@ * Martin Schwidefsky <schwidefsky@de.ibm.com> */ -#include <linux/config.h> #include <linux/kmod.h> #include <linux/types.h> #include <linux/err.h> diff --git a/drivers/s390/char/sclp_tty.c b/drivers/s390/char/sclp_tty.c index 6cbf067f1a8..f6cf9023039 100644 --- a/drivers/s390/char/sclp_tty.c +++ b/drivers/s390/char/sclp_tty.c @@ -8,7 +8,6 @@ * Martin Schwidefsky <schwidefsky@de.ibm.com> */ -#include <linux/config.h> #include <linux/module.h> #include <linux/kmod.h> #include <linux/tty.h> diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c index 9e02625c82c..54fba6f1718 100644 --- a/drivers/s390/char/sclp_vt220.c +++ b/drivers/s390/char/sclp_vt220.c @@ -7,7 +7,6 @@ * Author(s): Peter Oberparleiter <Peter.Oberparleiter@de.ibm.com> */ -#include <linux/config.h> #include <linux/module.h> #include <linux/spinlock.h> #include <linux/list.h> diff --git a/drivers/s390/char/tape.h b/drivers/s390/char/tape.h index cd51ace8b61..1f4c89967be 100644 --- a/drivers/s390/char/tape.h +++ b/drivers/s390/char/tape.h @@ -16,7 +16,6 @@ #include <asm/ccwdev.h> #include <asm/debug.h> #include <asm/idals.h> -#include <linux/config.h> #include <linux/blkdev.h> #include <linux/kernel.h> #include <linux/module.h> diff --git a/drivers/s390/char/tape_34xx.c b/drivers/s390/char/tape_34xx.c index d4f2da73807..48b4d30a725 100644 --- a/drivers/s390/char/tape_34xx.c +++ b/drivers/s390/char/tape_34xx.c @@ -8,7 +8,6 @@ * Martin Schwidefsky <schwidefsky@de.ibm.com> */ -#include <linux/config.h> #include <linux/module.h> #include <linux/init.h> #include <linux/bio.h> diff --git a/drivers/s390/char/tape_3590.c b/drivers/s390/char/tape_3590.c index d71ef1adea5..928cbefc49d 100644 --- a/drivers/s390/char/tape_3590.c +++ b/drivers/s390/char/tape_3590.c @@ -8,7 +8,6 @@ * Martin Schwidefsky <schwidefsky@de.ibm.com> */ -#include <linux/config.h> #include <linux/module.h> #include <linux/init.h> #include <linux/bio.h> diff --git a/drivers/s390/char/tape_block.c b/drivers/s390/char/tape_block.c index b70d9269024..3225fcd1dcb 100644 --- a/drivers/s390/char/tape_block.c +++ b/drivers/s390/char/tape_block.c @@ -11,7 +11,6 @@ */ #include <linux/fs.h> -#include <linux/config.h> #include <linux/module.h> #include <linux/blkdev.h> #include <linux/interrupt.h> diff --git a/drivers/s390/char/tape_char.c b/drivers/s390/char/tape_char.c index 5ce7ca38ace..97f75237bed 100644 --- a/drivers/s390/char/tape_char.c +++ b/drivers/s390/char/tape_char.c @@ -10,7 +10,6 @@ * Martin Schwidefsky <schwidefsky@de.ibm.com> */ -#include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/proc_fs.h> diff --git a/drivers/s390/char/tape_core.c b/drivers/s390/char/tape_core.c index e6e4086d322..122b4d8965c 100644 --- a/drivers/s390/char/tape_core.c +++ b/drivers/s390/char/tape_core.c @@ -11,7 +11,6 @@ * Stefan Bader <shbader@de.ibm.com> */ -#include <linux/config.h> #include <linux/module.h> #include <linux/init.h> // for kernel parameters #include <linux/kmod.h> // for requesting modules diff --git a/drivers/s390/char/tape_proc.c b/drivers/s390/char/tape_proc.c index 5fec0a10cc3..655d375ab22 100644 --- a/drivers/s390/char/tape_proc.c +++ b/drivers/s390/char/tape_proc.c @@ -11,7 +11,6 @@ * PROCFS Functions */ -#include <linux/config.h> #include <linux/module.h> #include <linux/vmalloc.h> #include <linux/seq_file.h> diff --git a/drivers/s390/char/tape_std.c b/drivers/s390/char/tape_std.c index 99cf881f41d..7a76ec413a3 100644 --- a/drivers/s390/char/tape_std.c +++ b/drivers/s390/char/tape_std.c @@ -11,7 +11,6 @@ * Stefan Bader <shbader@de.ibm.com> */ -#include <linux/config.h> #include <linux/stddef.h> #include <linux/kernel.h> #include <linux/bio.h> diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c index 9a141776873..f496f236b9c 100644 --- a/drivers/s390/char/tty3270.c +++ b/drivers/s390/char/tty3270.c @@ -8,7 +8,6 @@ * -- Copyright (C) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation */ -#include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/kdev_t.h> @@ -1785,7 +1784,6 @@ tty3270_init(void) * proc_entry, set_termios, flush_buffer, set_ldisc, write_proc */ driver->owner = THIS_MODULE; - driver->devfs_name = "ttyTUB/"; driver->driver_name = "ttyTUB"; driver->name = "ttyTUB"; driver->major = IBM_TTY3270_MAJOR; @@ -1793,7 +1791,7 @@ tty3270_init(void) driver->type = TTY_DRIVER_TYPE_SYSTEM; driver->subtype = SYSTEM_TYPE_TTY; driver->init_termios = tty_std_termios; - driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_NO_DEVFS; + driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_DYNAMIC_DEV; tty_set_operations(driver, &tty3270_ops); ret = tty_register_driver(driver); if (ret) { diff --git a/drivers/s390/cio/blacklist.c b/drivers/s390/cio/blacklist.c index 0960bef7b19..12c2d6b746e 100644 --- a/drivers/s390/cio/blacklist.c +++ b/drivers/s390/cio/blacklist.c @@ -9,7 +9,6 @@ * Arnd Bergmann (arndb@de.ibm.com) */ -#include <linux/config.h> #include <linux/init.h> #include <linux/vmalloc.h> #include <linux/slab.h> @@ -224,39 +223,6 @@ is_blacklisted (int ssid, int devno) } #ifdef CONFIG_PROC_FS -static int -__s390_redo_validation(struct subchannel_id schid, void *data) -{ - int ret; - struct subchannel *sch; - - sch = get_subchannel_by_schid(schid); - if (sch) { - /* Already known. */ - put_device(&sch->dev); - return 0; - } - ret = css_probe_device(schid); - if (ret == -ENXIO) - return ret; /* We're through. */ - if (ret == -ENOMEM) - /* Stop validation for now. Bad, but no need for a panic. */ - return ret; - return 0; -} - -/* - * Function: s390_redo_validation - * Look for no longer blacklisted devices - * FIXME: there must be a better way to do this */ -static inline void -s390_redo_validation (void) -{ - CIO_TRACE_EVENT (0, "redoval"); - - for_each_subchannel(__s390_redo_validation, NULL); -} - /* * Function: blacklist_parse_proc_parameters * parse the stuff which is piped to /proc/cio_ignore @@ -281,7 +247,7 @@ blacklist_parse_proc_parameters (char *buf) return; } - s390_redo_validation (); + css_schedule_reprobe(); } /* Iterator struct for all devices. */ diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c index bdfee7fbaa2..c7319a07ba3 100644 --- a/drivers/s390/cio/ccwgroup.c +++ b/drivers/s390/cio/ccwgroup.c @@ -404,21 +404,24 @@ ccwgroup_driver_register (struct ccwgroup_driver *cdriver) } static int -__ccwgroup_driver_unregister_device(struct device *dev, void *data) +__ccwgroup_match_all(struct device *dev, void *data) { - __ccwgroup_remove_symlinks(to_ccwgroupdev(dev)); - device_unregister(dev); - put_device(dev); - return 0; + return 1; } void ccwgroup_driver_unregister (struct ccwgroup_driver *cdriver) { + struct device *dev; + /* We don't want ccwgroup devices to live longer than their driver. */ get_driver(&cdriver->driver); - driver_for_each_device(&cdriver->driver, NULL, NULL, - __ccwgroup_driver_unregister_device); + while ((dev = driver_find_device(&cdriver->driver, NULL, NULL, + __ccwgroup_match_all))) { + __ccwgroup_remove_symlinks(to_ccwgroupdev(dev)); + device_unregister(dev); + put_device(dev); + } put_driver(&cdriver->driver); driver_unregister(&cdriver->driver); } diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index 72187e54dca..a01f3bba4a7 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -10,7 +10,6 @@ */ #include <linux/module.h> -#include <linux/config.h> #include <linux/slab.h> #include <linux/init.h> #include <linux/device.h> @@ -244,8 +243,7 @@ s390_subchannel_remove_chpid(struct device *dev, void *data) if ((sch->schib.scsw.actl & SCSW_ACTL_DEVACT) && (sch->schib.scsw.actl & SCSW_ACTL_SCHACT) && - (sch->schib.pmcw.lpum == mask) && - (sch->vpm == 0)) { + (sch->schib.pmcw.lpum == mask)) { int cc; cc = cio_clear(sch); @@ -918,12 +916,13 @@ chp_measurement_read(struct kobject *kobj, char *buf, loff_t off, size_t count) chp = to_channelpath(container_of(kobj, struct device, kobj)); css = to_css(chp->dev.parent); - size = sizeof(struct cmg_chars); + size = sizeof(struct cmg_entry); /* Only allow single reads. */ if (off || count < size) return 0; chp_measurement_copy_block((struct cmg_entry *)buf, css, chp->id); + count = size; return count; } diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index 5b20d8c9c02..a3423267467 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -11,7 +11,6 @@ */ #include <linux/module.h> -#include <linux/config.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/device.h> diff --git a/drivers/s390/cio/cmf.c b/drivers/s390/cio/cmf.c index 07ef3f640f4..1c3e8e9012b 100644 --- a/drivers/s390/cio/cmf.c +++ b/drivers/s390/cio/cmf.c @@ -3,9 +3,10 @@ * * Linux on zSeries Channel Measurement Facility support * - * Copyright 2000,2003 IBM Corporation + * Copyright 2000,2006 IBM Corporation * - * Author: Arnd Bergmann <arndb@de.ibm.com> + * Authors: Arnd Bergmann <arndb@de.ibm.com> + * Cornelia Huck <cornelia.huck@de.ibm.com> * * original idea from Natarajan Krishnaswami <nkrishna@us.ibm.com> * @@ -96,9 +97,9 @@ module_param(format, bool, 0444); /** * struct cmb_operations - functions to use depending on cmb_format * - * all these functions operate on a struct cmf_device. There is only - * one instance of struct cmb_operations because all cmf_device - * objects are guaranteed to be of the same type. + * Most of these functions operate on a struct ccw_device. There is only + * one instance of struct cmb_operations because the format of the measurement + * data is guaranteed to be the same for every ccw_device. * * @alloc: allocate memory for a channel measurement block, * either with the help of a special pool or with kmalloc @@ -107,6 +108,7 @@ module_param(format, bool, 0444); * @readall: read a measurement block in a common format * @reset: clear the data in the associated measurement block and * reset its time stamp + * @align: align an allocated block so that the hardware can use it */ struct cmb_operations { int (*alloc) (struct ccw_device*); @@ -115,11 +117,19 @@ struct cmb_operations { u64 (*read) (struct ccw_device*, int); int (*readall)(struct ccw_device*, struct cmbdata *); void (*reset) (struct ccw_device*); + void * (*align) (void *); struct attribute_group *attr_group; }; static struct cmb_operations *cmbops; +struct cmb_data { + void *hw_block; /* Pointer to block updated by hardware */ + void *last_block; /* Last changed block copied from hardware block */ + int size; /* Size of hw_block and last_block */ + unsigned long long last_update; /* when last_block was updated */ +}; + /* our user interface is designed in terms of nanoseconds, * while the hardware measures total times in its own * unit.*/ @@ -226,63 +236,229 @@ struct set_schib_struct { unsigned long address; wait_queue_head_t wait; int ret; + struct kref kref; }; +static void cmf_set_schib_release(struct kref *kref) +{ + struct set_schib_struct *set_data; + + set_data = container_of(kref, struct set_schib_struct, kref); + kfree(set_data); +} + +#define CMF_PENDING 1 + static int set_schib_wait(struct ccw_device *cdev, u32 mme, int mbfc, unsigned long address) { - struct set_schib_struct s = { - .mme = mme, - .mbfc = mbfc, - .address = address, - .wait = __WAIT_QUEUE_HEAD_INITIALIZER(s.wait), - }; + struct set_schib_struct *set_data; + int ret; spin_lock_irq(cdev->ccwlock); - s.ret = set_schib(cdev, mme, mbfc, address); - if (s.ret != -EBUSY) { - goto out_nowait; + if (!cdev->private->cmb) { + ret = -ENODEV; + goto out; } + set_data = kzalloc(sizeof(struct set_schib_struct), GFP_ATOMIC); + if (!set_data) { + ret = -ENOMEM; + goto out; + } + init_waitqueue_head(&set_data->wait); + kref_init(&set_data->kref); + set_data->mme = mme; + set_data->mbfc = mbfc; + set_data->address = address; + + ret = set_schib(cdev, mme, mbfc, address); + if (ret != -EBUSY) + goto out_put; if (cdev->private->state != DEV_STATE_ONLINE) { - s.ret = -EBUSY; /* if the device is not online, don't even try again */ - goto out_nowait; + ret = -EBUSY; + goto out_put; } + cdev->private->state = DEV_STATE_CMFCHANGE; - cdev->private->cmb_wait = &s; - s.ret = 1; + set_data->ret = CMF_PENDING; + cdev->private->cmb_wait = set_data; spin_unlock_irq(cdev->ccwlock); - if (wait_event_interruptible(s.wait, s.ret != 1)) { + if (wait_event_interruptible(set_data->wait, + set_data->ret != CMF_PENDING)) { spin_lock_irq(cdev->ccwlock); - if (s.ret == 1) { - s.ret = -ERESTARTSYS; - cdev->private->cmb_wait = 0; + if (set_data->ret == CMF_PENDING) { + set_data->ret = -ERESTARTSYS; if (cdev->private->state == DEV_STATE_CMFCHANGE) cdev->private->state = DEV_STATE_ONLINE; } spin_unlock_irq(cdev->ccwlock); } - return s.ret; - -out_nowait: + spin_lock_irq(cdev->ccwlock); + cdev->private->cmb_wait = NULL; + ret = set_data->ret; +out_put: + kref_put(&set_data->kref, cmf_set_schib_release); +out: spin_unlock_irq(cdev->ccwlock); - return s.ret; + return ret; } void retry_set_schib(struct ccw_device *cdev) { - struct set_schib_struct *s; + struct set_schib_struct *set_data; + + set_data = cdev->private->cmb_wait; + if (!set_data) { + WARN_ON(1); + return; + } + kref_get(&set_data->kref); + set_data->ret = set_schib(cdev, set_data->mme, set_data->mbfc, + set_data->address); + wake_up(&set_data->wait); + kref_put(&set_data->kref, cmf_set_schib_release); +} + +static int cmf_copy_block(struct ccw_device *cdev) +{ + struct subchannel *sch; + void *reference_buf; + void *hw_block; + struct cmb_data *cmb_data; + + sch = to_subchannel(cdev->dev.parent); + + if (stsch(sch->schid, &sch->schib)) + return -ENODEV; + + if (sch->schib.scsw.fctl & SCSW_FCTL_START_FUNC) { + /* Don't copy if a start function is in progress. */ + if ((!sch->schib.scsw.actl & SCSW_ACTL_SUSPENDED) && + (sch->schib.scsw.actl & + (SCSW_ACTL_DEVACT | SCSW_ACTL_SCHACT)) && + (!sch->schib.scsw.stctl & SCSW_STCTL_SEC_STATUS)) + return -EBUSY; + } + cmb_data = cdev->private->cmb; + hw_block = cmbops->align(cmb_data->hw_block); + if (!memcmp(cmb_data->last_block, hw_block, cmb_data->size)) + /* No need to copy. */ + return 0; + reference_buf = kzalloc(cmb_data->size, GFP_ATOMIC); + if (!reference_buf) + return -ENOMEM; + /* Ensure consistency of block copied from hardware. */ + do { + memcpy(cmb_data->last_block, hw_block, cmb_data->size); + memcpy(reference_buf, hw_block, cmb_data->size); + } while (memcmp(cmb_data->last_block, reference_buf, cmb_data->size)); + cmb_data->last_update = get_clock(); + kfree(reference_buf); + return 0; +} + +struct copy_block_struct { + wait_queue_head_t wait; + int ret; + struct kref kref; +}; + +static void cmf_copy_block_release(struct kref *kref) +{ + struct copy_block_struct *copy_block; + + copy_block = container_of(kref, struct copy_block_struct, kref); + kfree(copy_block); +} + +static int cmf_cmb_copy_wait(struct ccw_device *cdev) +{ + struct copy_block_struct *copy_block; + int ret; + unsigned long flags; + + spin_lock_irqsave(cdev->ccwlock, flags); + if (!cdev->private->cmb) { + ret = -ENODEV; + goto out; + } + copy_block = kzalloc(sizeof(struct copy_block_struct), GFP_ATOMIC); + if (!copy_block) { + ret = -ENOMEM; + goto out; + } + init_waitqueue_head(©_block->wait); + kref_init(©_block->kref); + + ret = cmf_copy_block(cdev); + if (ret != -EBUSY) + goto out_put; + + if (cdev->private->state != DEV_STATE_ONLINE) { + ret = -EBUSY; + goto out_put; + } + + cdev->private->state = DEV_STATE_CMFUPDATE; + copy_block->ret = CMF_PENDING; + cdev->private->cmb_wait = copy_block; + + spin_unlock_irqrestore(cdev->ccwlock, flags); + if (wait_event_interruptible(copy_block->wait, + copy_block->ret != CMF_PENDING)) { + spin_lock_irqsave(cdev->ccwlock, flags); + if (copy_block->ret == CMF_PENDING) { + copy_block->ret = -ERESTARTSYS; + if (cdev->private->state == DEV_STATE_CMFUPDATE) + cdev->private->state = DEV_STATE_ONLINE; + } + spin_unlock_irqrestore(cdev->ccwlock, flags); + } + spin_lock_irqsave(cdev->ccwlock, flags); + cdev->private->cmb_wait = NULL; + ret = copy_block->ret; +out_put: + kref_put(©_block->kref, cmf_copy_block_release); +out: + spin_unlock_irqrestore(cdev->ccwlock, flags); + return ret; +} + +void cmf_retry_copy_block(struct ccw_device *cdev) +{ + struct copy_block_struct *copy_block; - s = cdev->private->cmb_wait; - cdev->private->cmb_wait = 0; - if (!s) { + copy_block = cdev->private->cmb_wait; + if (!copy_block) { WARN_ON(1); return; } - s->ret = set_schib(cdev, s->mme, s->mbfc, s->address); - wake_up(&s->wait); + kref_get(©_block->kref); + copy_block->ret = cmf_copy_block(cdev); + wake_up(©_block->wait); + kref_put(©_block->kref, cmf_copy_block_release); +} + +static void cmf_generic_reset(struct ccw_device *cdev) +{ + struct cmb_data *cmb_data; + + spin_lock_irq(cdev->ccwlock); + cmb_data = cdev->private->cmb; + if (cmb_data) { + memset(cmb_data->last_block, 0, cmb_data->size); + /* + * Need to reset hw block as well to make the hardware start + * from 0 again. + */ + memset(cmbops->align(cmb_data->hw_block), 0, cmb_data->size); + cmb_data->last_update = 0; + } + cdev->private->cmb_start_time = get_clock(); + spin_unlock_irq(cdev->ccwlock); } /** @@ -343,8 +519,8 @@ struct cmb { /* insert a single device into the cmb_area list * called with cmb_area.lock held from alloc_cmb */ -static inline int -alloc_cmb_single (struct ccw_device *cdev) +static inline int alloc_cmb_single (struct ccw_device *cdev, + struct cmb_data *cmb_data) { struct cmb *cmb; struct ccw_device_private *node; @@ -358,10 +534,12 @@ alloc_cmb_single (struct ccw_device *cdev) /* find first unused cmb in cmb_area.mem. * this is a little tricky: cmb_area.list - * remains sorted by ->cmb pointers */ + * remains sorted by ->cmb->hw_data pointers */ cmb = cmb_area.mem; list_for_each_entry(node, &cmb_area.list, cmb_list) { - if ((struct cmb*)node->cmb > cmb) + struct cmb_data *data; + data = node->cmb; + if ((struct cmb*)data->hw_block > cmb) break; cmb++; } @@ -372,7 +550,8 @@ alloc_cmb_single (struct ccw_device *cdev) /* insert new cmb */ list_add_tail(&cdev->private->cmb_list, &node->cmb_list); - cdev->private->cmb = cmb; + cmb_data->hw_block = cmb; + cdev->private->cmb = cmb_data; ret = 0; out: spin_unlock_irq(cdev->ccwlock); @@ -385,7 +564,19 @@ alloc_cmb (struct ccw_device *cdev) int ret; struct cmb *mem; ssize_t size; + struct cmb_data *cmb_data; + + /* Allocate private cmb_data. */ + cmb_data = kzalloc(sizeof(struct cmb_data), GFP_KERNEL); + if (!cmb_data) + return -ENOMEM; + cmb_data->last_block = kzalloc(sizeof(struct cmb), GFP_KERNEL); + if (!cmb_data->last_block) { + kfree(cmb_data); + return -ENOMEM; + } + cmb_data->size = sizeof(struct cmb); spin_lock(&cmb_area.lock); if (!cmb_area.mem) { @@ -414,29 +605,36 @@ alloc_cmb (struct ccw_device *cdev) } /* do the actual allocation */ - ret = alloc_cmb_single(cdev); + ret = alloc_cmb_single(cdev, cmb_data); out: spin_unlock(&cmb_area.lock); - + if (ret) { + kfree(cmb_data->last_block); + kfree(cmb_data); + } return ret; } -static void -free_cmb(struct ccw_device *cdev) +static void free_cmb(struct ccw_device *cdev) { struct ccw_device_private *priv; - - priv = cdev->private; + struct cmb_data *cmb_data; spin_lock(&cmb_area.lock); spin_lock_irq(cdev->ccwlock); + priv = cdev->private; + if (list_empty(&priv->cmb_list)) { /* already freed */ goto out; } + cmb_data = priv->cmb; priv->cmb = NULL; + if (cmb_data) + kfree(cmb_data->last_block); + kfree(cmb_data); list_del_init(&priv->cmb_list); if (list_empty(&cmb_area.list)) { @@ -451,83 +649,97 @@ out: spin_unlock(&cmb_area.lock); } -static int -set_cmb(struct ccw_device *cdev, u32 mme) +static int set_cmb(struct ccw_device *cdev, u32 mme) { u16 offset; + struct cmb_data *cmb_data; + unsigned long flags; - if (!cdev->private->cmb) + spin_lock_irqsave(cdev->ccwlock, flags); + if (!cdev->private->cmb) { + spin_unlock_irqrestore(cdev->ccwlock, flags); return -EINVAL; - - offset = mme ? (struct cmb *)cdev->private->cmb - cmb_area.mem : 0; + } + cmb_data = cdev->private->cmb; + offset = mme ? (struct cmb *)cmb_data->hw_block - cmb_area.mem : 0; + spin_unlock_irqrestore(cdev->ccwlock, flags); return set_schib_wait(cdev, mme, 0, offset); } -static u64 -read_cmb (struct ccw_device *cdev, int index) +static u64 read_cmb (struct ccw_device *cdev, int index) { - /* yes, we have to put it on the stack - * because the cmb must only be accessed - * atomically, e.g. with mvc */ - struct cmb cmb; - unsigned long flags; + struct cmb *cmb; u32 val; + int ret; + unsigned long flags; + + ret = cmf_cmb_copy_wait(cdev); + if (ret < 0) + return 0; spin_lock_irqsave(cdev->ccwlock, flags); if (!cdev->private->cmb) { - spin_unlock_irqrestore(cdev->ccwlock, flags); - return 0; + ret = 0; + goto out; } - - cmb = *(struct cmb*)cdev->private->cmb; - spin_unlock_irqrestore(cdev->ccwlock, flags); + cmb = ((struct cmb_data *)cdev->private->cmb)->last_block; switch (index) { case cmb_ssch_rsch_count: - return cmb.ssch_rsch_count; + ret = cmb->ssch_rsch_count; + goto out; case cmb_sample_count: - return cmb.sample_count; + ret = cmb->sample_count; + goto out; case cmb_device_connect_time: - val = cmb.device_connect_time; + val = cmb->device_connect_time; break; case cmb_function_pending_time: - val = cmb.function_pending_time; + val = cmb->function_pending_time; break; case cmb_device_disconnect_time: - val = cmb.device_disconnect_time; + val = cmb->device_disconnect_time; break; case cmb_control_unit_queuing_time: - val = cmb.control_unit_queuing_time; + val = cmb->control_unit_queuing_time; break; case cmb_device_active_only_time: - val = cmb.device_active_only_time; + val = cmb->device_active_only_time; break; default: - return 0; + ret = 0; + goto out; } - return time_to_avg_nsec(val, cmb.sample_count); + ret = time_to_avg_nsec(val, cmb->sample_count); +out: + spin_unlock_irqrestore(cdev->ccwlock, flags); + return ret; } -static int -readall_cmb (struct ccw_device *cdev, struct cmbdata *data) +static int readall_cmb (struct ccw_device *cdev, struct cmbdata *data) { - /* yes, we have to put it on the stack - * because the cmb must only be accessed - * atomically, e.g. with mvc */ - struct cmb cmb; - unsigned long flags; + struct cmb *cmb; + struct cmb_data *cmb_data; u64 time; + unsigned long flags; + int ret; + ret = cmf_cmb_copy_wait(cdev); + if (ret < 0) + return ret; spin_lock_irqsave(cdev->ccwlock, flags); - if (!cdev->private->cmb) { - spin_unlock_irqrestore(cdev->ccwlock, flags); - return -ENODEV; + cmb_data = cdev->private->cmb; + if (!cmb_data) { + ret = -ENODEV; + goto out; } - - cmb = *(struct cmb*)cdev->private->cmb; - time = get_clock() - cdev->private->cmb_start_time; - spin_unlock_irqrestore(cdev->ccwlock, flags); + if (cmb_data->last_update == 0) { + ret = -EAGAIN; + goto out; + } + cmb = cmb_data->last_block; + time = cmb_data->last_update - cdev->private->cmb_start_time; memset(data, 0, sizeof(struct cmbdata)); @@ -538,31 +750,32 @@ readall_cmb (struct ccw_device *cdev, struct cmbdata *data) data->elapsed_time = (time * 1000) >> 12; /* copy data to new structure */ - data->ssch_rsch_count = cmb.ssch_rsch_count; - data->sample_count = cmb.sample_count; + data->ssch_rsch_count = cmb->ssch_rsch_count; + data->sample_count = cmb->sample_count; /* time fields are converted to nanoseconds while copying */ - data->device_connect_time = time_to_nsec(cmb.device_connect_time); - data->function_pending_time = time_to_nsec(cmb.function_pending_time); - data->device_disconnect_time = time_to_nsec(cmb.device_disconnect_time); + data->device_connect_time = time_to_nsec(cmb->device_connect_time); + data->function_pending_time = time_to_nsec(cmb->function_pending_time); + data->device_disconnect_time = + time_to_nsec(cmb->device_disconnect_time); data->control_unit_queuing_time - = time_to_nsec(cmb.control_unit_queuing_time); + = time_to_nsec(cmb->control_unit_queuing_time); data->device_active_only_time - = time_to_nsec(cmb.device_active_only_time); + = time_to_nsec(cmb->device_active_only_time); + ret = 0; +out: + spin_unlock_irqrestore(cdev->ccwlock, flags); + return ret; +} - return 0; +static void reset_cmb(struct ccw_device *cdev) +{ + cmf_generic_reset(cdev); } -static void -reset_cmb(struct ccw_device *cdev) +static void * align_cmb(void *area) { - struct cmb *cmb; - spin_lock_irq(cdev->ccwlock); - cmb = cdev->private->cmb; - if (cmb) - memset (cmb, 0, sizeof (*cmb)); - cdev->private->cmb_start_time = get_clock(); - spin_unlock_irq(cdev->ccwlock); + return area; } static struct attribute_group cmf_attr_group; @@ -574,6 +787,7 @@ static struct cmb_operations cmbops_basic = { .read = read_cmb, .readall = readall_cmb, .reset = reset_cmb, + .align = align_cmb, .attr_group = &cmf_attr_group, }; @@ -610,22 +824,34 @@ static inline struct cmbe* cmbe_align(struct cmbe *c) return (struct cmbe*)addr; } -static int -alloc_cmbe (struct ccw_device *cdev) +static int alloc_cmbe (struct ccw_device *cdev) { struct cmbe *cmbe; - cmbe = kmalloc (sizeof (*cmbe) * 2, GFP_KERNEL); + struct cmb_data *cmb_data; + int ret; + + cmbe = kzalloc (sizeof (*cmbe) * 2, GFP_KERNEL); if (!cmbe) return -ENOMEM; - + cmb_data = kzalloc(sizeof(struct cmb_data), GFP_KERNEL); + if (!cmb_data) { + ret = -ENOMEM; + goto out_free; + } + cmb_data->last_block = kzalloc(sizeof(struct cmbe), GFP_KERNEL); + if (!cmb_data->last_block) { + ret = -ENOMEM; + goto out_free; + } + cmb_data->size = sizeof(struct cmbe); spin_lock_irq(cdev->ccwlock); if (cdev->private->cmb) { - kfree(cmbe); spin_unlock_irq(cdev->ccwlock); - return -EBUSY; + ret = -EBUSY; + goto out_free; } - - cdev->private->cmb = cmbe; + cmb_data->hw_block = cmbe; + cdev->private->cmb = cmb_data; spin_unlock_irq(cdev->ccwlock); /* activate global measurement if this is the first channel */ @@ -636,14 +862,24 @@ alloc_cmbe (struct ccw_device *cdev) spin_unlock(&cmb_area.lock); return 0; +out_free: + if (cmb_data) + kfree(cmb_data->last_block); + kfree(cmb_data); + kfree(cmbe); + return ret; } -static void -free_cmbe (struct ccw_device *cdev) +static void free_cmbe (struct ccw_device *cdev) { + struct cmb_data *cmb_data; + spin_lock_irq(cdev->ccwlock); - kfree(cdev->private->cmb); + cmb_data = cdev->private->cmb; cdev->private->cmb = NULL; + if (cmb_data) + kfree(cmb_data->last_block); + kfree(cmb_data); spin_unlock_irq(cdev->ccwlock); /* deactivate global measurement if this is the last channel */ @@ -654,89 +890,105 @@ free_cmbe (struct ccw_device *cdev) spin_unlock(&cmb_area.lock); } -static int -set_cmbe(struct ccw_device *cdev, u32 mme) +static int set_cmbe(struct ccw_device *cdev, u32 mme) { unsigned long mba; + struct cmb_data *cmb_data; + unsigned long flags; - if (!cdev->private->cmb) + spin_lock_irqsave(cdev->ccwlock, flags); + if (!cdev->private->cmb) { + spin_unlock_irqrestore(cdev->ccwlock, flags); return -EINVAL; - mba = mme ? (unsigned long) cmbe_align(cdev->private->cmb) : 0; + } + cmb_data = cdev->private->cmb; + mba = mme ? (unsigned long) cmbe_align(cmb_data->hw_block) : 0; + spin_unlock_irqrestore(cdev->ccwlock, flags); return set_schib_wait(cdev, mme, 1, mba); } -u64 -read_cmbe (struct ccw_device *cdev, int index) +static u64 read_cmbe (struct ccw_device *cdev, int index) { - /* yes, we have to put it on the stack - * because the cmb must only be accessed - * atomically, e.g. with mvc */ - struct cmbe cmb; - unsigned long flags; + struct cmbe *cmb; + struct cmb_data *cmb_data; u32 val; + int ret; + unsigned long flags; - spin_lock_irqsave(cdev->ccwlock, flags); - if (!cdev->private->cmb) { - spin_unlock_irqrestore(cdev->ccwlock, flags); + ret = cmf_cmb_copy_wait(cdev); + if (ret < 0) return 0; - } - cmb = *cmbe_align(cdev->private->cmb); - spin_unlock_irqrestore(cdev->ccwlock, flags); + spin_lock_irqsave(cdev->ccwlock, flags); + cmb_data = cdev->private->cmb; + if (!cmb_data) { + ret = 0; + goto out; + } + cmb = cmb_data->last_block; switch (index) { case cmb_ssch_rsch_count: - return cmb.ssch_rsch_count; + ret = cmb->ssch_rsch_count; + goto out; case cmb_sample_count: - return cmb.sample_count; + ret = cmb->sample_count; + goto out; case cmb_device_connect_time: - val = cmb.device_connect_time; + val = cmb->device_connect_time; break; case cmb_function_pending_time: - val = cmb.function_pending_time; + val = cmb->function_pending_time; break; case cmb_device_disconnect_time: - val = cmb.device_disconnect_time; + val = cmb->device_disconnect_time; break; case cmb_control_unit_queuing_time: - val = cmb.control_unit_queuing_time; + val = cmb->control_unit_queuing_time; break; case cmb_device_active_only_time: - val = cmb.device_active_only_time; + val = cmb->device_active_only_time; break; case cmb_device_busy_time: - val = cmb.device_busy_time; + val = cmb->device_busy_time; break; case cmb_initial_command_response_time: - val = cmb.initial_command_response_time; + val = cmb->initial_command_response_time; break; default: - return 0; + ret = 0; + goto out; } - return time_to_avg_nsec(val, cmb.sample_count); + ret = time_to_avg_nsec(val, cmb->sample_count); +out: + spin_unlock_irqrestore(cdev->ccwlock, flags); + return ret; } -static int -readall_cmbe (struct ccw_device *cdev, struct cmbdata *data) +static int readall_cmbe (struct ccw_device *cdev, struct cmbdata *data) { - /* yes, we have to put it on the stack - * because the cmb must only be accessed - * atomically, e.g. with mvc */ - struct cmbe cmb; - unsigned long flags; + struct cmbe *cmb; + struct cmb_data *cmb_data; u64 time; + unsigned long flags; + int ret; + ret = cmf_cmb_copy_wait(cdev); + if (ret < 0) + return ret; spin_lock_irqsave(cdev->ccwlock, flags); - if (!cdev->private->cmb) { - spin_unlock_irqrestore(cdev->ccwlock, flags); - return -ENODEV; + cmb_data = cdev->private->cmb; + if (!cmb_data) { + ret = -ENODEV; + goto out; } - - cmb = *cmbe_align(cdev->private->cmb); - time = get_clock() - cdev->private->cmb_start_time; - spin_unlock_irqrestore(cdev->ccwlock, flags); + if (cmb_data->last_update == 0) { + ret = -EAGAIN; + goto out; + } + time = cmb_data->last_update - cdev->private->cmb_start_time; memset (data, 0, sizeof(struct cmbdata)); @@ -746,35 +998,38 @@ readall_cmbe (struct ccw_device *cdev, struct cmbdata *data) /* conver to nanoseconds */ data->elapsed_time = (time * 1000) >> 12; + cmb = cmb_data->last_block; /* copy data to new structure */ - data->ssch_rsch_count = cmb.ssch_rsch_count; - data->sample_count = cmb.sample_count; + data->ssch_rsch_count = cmb->ssch_rsch_count; + data->sample_count = cmb->sample_count; /* time fields are converted to nanoseconds while copying */ - data->device_connect_time = time_to_nsec(cmb.device_connect_time); - data->function_pending_time = time_to_nsec(cmb.function_pending_time); - data->device_disconnect_time = time_to_nsec(cmb.device_disconnect_time); + data->device_connect_time = time_to_nsec(cmb->device_connect_time); + data->function_pending_time = time_to_nsec(cmb->function_pending_time); + data->device_disconnect_time = + time_to_nsec(cmb->device_disconnect_time); data->control_unit_queuing_time - = time_to_nsec(cmb.control_unit_queuing_time); + = time_to_nsec(cmb->control_unit_queuing_time); data->device_active_only_time - = time_to_nsec(cmb.device_active_only_time); - data->device_busy_time = time_to_nsec(cmb.device_busy_time); + = time_to_nsec(cmb->device_active_only_time); + data->device_busy_time = time_to_nsec(cmb->device_busy_time); data->initial_command_response_time - = time_to_nsec(cmb.initial_command_response_time); + = time_to_nsec(cmb->initial_command_response_time); - return 0; + ret = 0; +out: + spin_unlock_irqrestore(cdev->ccwlock, flags); + return ret; } -static void -reset_cmbe(struct ccw_device *cdev) +static void reset_cmbe(struct ccw_device *cdev) { - struct cmbe *cmb; - spin_lock_irq(cdev->ccwlock); - cmb = cmbe_align(cdev->private->cmb); - if (cmb) - memset (cmb, 0, sizeof (*cmb)); - cdev->private->cmb_start_time = get_clock(); - spin_unlock_irq(cdev->ccwlock); + cmf_generic_reset(cdev); +} + +static void * align_cmbe(void *area) +{ + return cmbe_align(area); } static struct attribute_group cmf_attr_group_ext; @@ -786,6 +1041,7 @@ static struct cmb_operations cmbops_extended = { .read = read_cmbe, .readall = readall_cmbe, .reset = reset_cmbe, + .align = align_cmbe, .attr_group = &cmf_attr_group_ext, }; @@ -803,14 +1059,19 @@ cmb_show_avg_sample_interval(struct device *dev, struct device_attribute *attr, struct ccw_device *cdev; long interval; unsigned long count; + struct cmb_data *cmb_data; cdev = to_ccwdev(dev); - interval = get_clock() - cdev->private->cmb_start_time; count = cmf_read(cdev, cmb_sample_count); - if (count) + spin_lock_irq(cdev->ccwlock); + cmb_data = cdev->private->cmb; + if (count) { + interval = cmb_data->last_update - + cdev->private->cmb_start_time; interval /= count; - else + } else interval = -1; + spin_unlock_irq(cdev->ccwlock); return sprintf(buf, "%ld\n", interval); } @@ -823,7 +1084,10 @@ cmb_show_avg_utilization(struct device *dev, struct device_attribute *attr, char int ret; ret = cmf_readall(to_ccwdev(dev), &data); - if (ret) + if (ret == -EAGAIN || ret == -ENODEV) + /* No data (yet/currently) available to use for calculation. */ + return sprintf(buf, "n/a\n"); + else if (ret) return ret; utilization = data.device_connect_time + @@ -982,6 +1246,13 @@ cmf_readall(struct ccw_device *cdev, struct cmbdata *data) return cmbops->readall(cdev, data); } +/* Reenable cmf when a disconnected device becomes available again. */ +int cmf_reenable(struct ccw_device *cdev) +{ + cmbops->reset(cdev); + return cmbops->set(cdev, 2); +} + static int __init init_cmf(void) { diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c index 74ea8aac4b7..1d3be80797f 100644 --- a/drivers/s390/cio/css.c +++ b/drivers/s390/cio/css.c @@ -19,9 +19,11 @@ #include "cio_debug.h" #include "ioasm.h" #include "chsc.h" +#include "device.h" int need_rescan = 0; int css_init_done = 0; +static int need_reprobe = 0; static int max_ssid = 0; struct channel_subsystem *css[__MAX_CSSID + 1]; @@ -339,6 +341,67 @@ typedef void (*workfunc)(void *); DECLARE_WORK(slow_path_work, (workfunc)css_trigger_slow_path, NULL); struct workqueue_struct *slow_path_wq; +/* Reprobe subchannel if unregistered. */ +static int reprobe_subchannel(struct subchannel_id schid, void *data) +{ + struct subchannel *sch; + int ret; + + CIO_DEBUG(KERN_INFO, 6, "cio: reprobe 0.%x.%04x\n", + schid.ssid, schid.sch_no); + if (need_reprobe) + return -EAGAIN; + + sch = get_subchannel_by_schid(schid); + if (sch) { + /* Already known. */ + put_device(&sch->dev); + return 0; + } + + ret = css_probe_device(schid); + switch (ret) { + case 0: + break; + case -ENXIO: + case -ENOMEM: + /* These should abort looping */ + break; + default: + ret = 0; + } + + return ret; +} + +/* Work function used to reprobe all unregistered subchannels. */ +static void reprobe_all(void *data) +{ + int ret; + + CIO_MSG_EVENT(2, "reprobe start\n"); + + need_reprobe = 0; + /* Make sure initial subchannel scan is done. */ + wait_event(ccw_device_init_wq, + atomic_read(&ccw_device_init_count) == 0); + ret = for_each_subchannel(reprobe_subchannel, NULL); + + CIO_MSG_EVENT(2, "reprobe done (rc=%d, need_reprobe=%d)\n", ret, + need_reprobe); +} + +DECLARE_WORK(css_reprobe_work, reprobe_all, NULL); + +/* Schedule reprobing of all unregistered subchannels. */ +void css_schedule_reprobe(void) +{ + need_reprobe = 1; + queue_work(ccw_device_work, &css_reprobe_work); +} + +EXPORT_SYMBOL_GPL(css_schedule_reprobe); + /* * Rescan for new devices. FIXME: This is slow. * This function is called when we have lost CRWs due to overflows and we have diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index 8e3053c2a45..67f0de6aed3 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -8,7 +8,6 @@ * Cornelia Huck (cornelia.huck@de.ibm.com) * Martin Schwidefsky (schwidefsky@de.ibm.com) */ -#include <linux/config.h> #include <linux/module.h> #include <linux/init.h> #include <linux/spinlock.h> @@ -133,8 +132,8 @@ struct css_driver io_subchannel_driver = { struct workqueue_struct *ccw_device_work; struct workqueue_struct *ccw_device_notify_work; -static wait_queue_head_t ccw_device_init_wq; -static atomic_t ccw_device_init_count; +wait_queue_head_t ccw_device_init_wq; +atomic_t ccw_device_init_count; static int __init init_ccw_bus_type (void) diff --git a/drivers/s390/cio/device.h b/drivers/s390/cio/device.h index 11587ebb728..00be9a5b4ac 100644 --- a/drivers/s390/cio/device.h +++ b/drivers/s390/cio/device.h @@ -1,6 +1,10 @@ #ifndef S390_DEVICE_H #define S390_DEVICE_H +#include <asm/ccwdev.h> +#include <asm/atomic.h> +#include <linux/wait.h> + /* * states of the device statemachine */ @@ -23,6 +27,7 @@ enum dev_state { DEV_STATE_DISCONNECTED, DEV_STATE_DISCONNECTED_SENSE_ID, DEV_STATE_CMFCHANGE, + DEV_STATE_CMFUPDATE, /* last element! */ NR_DEV_STATES }; @@ -67,6 +72,8 @@ dev_fsm_final_state(struct ccw_device *cdev) extern struct workqueue_struct *ccw_device_work; extern struct workqueue_struct *ccw_device_notify_work; +extern wait_queue_head_t ccw_device_init_wq; +extern atomic_t ccw_device_init_count; void io_subchannel_recog_done(struct ccw_device *cdev); @@ -112,5 +119,8 @@ int ccw_device_stlck(struct ccw_device *); void ccw_device_set_timeout(struct ccw_device *, int); extern struct subchannel_id ccw_device_get_subchannel_id(struct ccw_device *); +/* Channel measurement facility related */ void retry_set_schib(struct ccw_device *cdev); +void cmf_retry_copy_block(struct ccw_device *); +int cmf_reenable(struct ccw_device *); #endif diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index 49ec562d7f6..cb1af0b6f03 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -9,7 +9,6 @@ */ #include <linux/module.h> -#include <linux/config.h> #include <linux/init.h> #include <linux/jiffies.h> #include <linux/string.h> @@ -336,8 +335,11 @@ ccw_device_oper_notify(void *data) if (!ret) /* Driver doesn't want device back. */ ccw_device_do_unreg_rereg((void *)cdev); - else + else { + /* Reenable channel measurements, if needed. */ + cmf_reenable(cdev); wake_up(&cdev->private->wait_q); + } } /* @@ -861,6 +863,8 @@ ccw_device_clear_verify(struct ccw_device *cdev, enum dev_event dev_event) irb = (struct irb *) __LC_IRB; /* Accumulate status. We don't do basic sense. */ ccw_device_accumulate_irb(cdev, irb); + /* Remember to clear irb to avoid residuals. */ + memset(&cdev->private->irb, 0, sizeof(struct irb)); /* Try to start delayed device verification. */ ccw_device_online_verify(cdev, 0); /* Note: Don't call handler for cio initiated clear! */ @@ -1093,6 +1097,13 @@ ccw_device_change_cmfstate(struct ccw_device *cdev, enum dev_event dev_event) dev_fsm_event(cdev, dev_event); } +static void ccw_device_update_cmfblock(struct ccw_device *cdev, + enum dev_event dev_event) +{ + cmf_retry_copy_block(cdev); + cdev->private->state = DEV_STATE_ONLINE; + dev_fsm_event(cdev, dev_event); +} static void ccw_device_quiesce_done(struct ccw_device *cdev, enum dev_event dev_event) @@ -1247,6 +1258,12 @@ fsm_func_t *dev_jumptable[NR_DEV_STATES][NR_DEV_EVENTS] = { [DEV_EVENT_TIMEOUT] = ccw_device_change_cmfstate, [DEV_EVENT_VERIFY] = ccw_device_change_cmfstate, }, + [DEV_STATE_CMFUPDATE] = { + [DEV_EVENT_NOTOPER] = ccw_device_update_cmfblock, + [DEV_EVENT_INTERRUPT] = ccw_device_update_cmfblock, + [DEV_EVENT_TIMEOUT] = ccw_device_update_cmfblock, + [DEV_EVENT_VERIFY] = ccw_device_update_cmfblock, + }, }; /* diff --git a/drivers/s390/cio/device_id.c b/drivers/s390/cio/device_id.c index e60b2d8103b..438db483035 100644 --- a/drivers/s390/cio/device_id.c +++ b/drivers/s390/cio/device_id.c @@ -10,7 +10,6 @@ */ #include <linux/module.h> -#include <linux/config.h> #include <linux/init.h> #include <asm/ccwdev.h> diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c index 795abb5a65b..a60124264be 100644 --- a/drivers/s390/cio/device_ops.c +++ b/drivers/s390/cio/device_ops.c @@ -6,7 +6,6 @@ * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) * Cornelia Huck (cornelia.huck@de.ibm.com) */ -#include <linux/config.h> #include <linux/module.h> #include <linux/init.h> #include <linux/errno.h> @@ -78,7 +77,8 @@ ccw_device_start_key(struct ccw_device *cdev, struct ccw1 *cpa, return -ENODEV; if (cdev->private->state == DEV_STATE_NOT_OPER) return -ENODEV; - if (cdev->private->state == DEV_STATE_VERIFY) { + if (cdev->private->state == DEV_STATE_VERIFY || + cdev->private->state == DEV_STATE_CLEAR_VERIFY) { /* Remember to fake irb when finished. */ if (!cdev->private->flags.fake_irb) { cdev->private->flags.fake_irb = 1; @@ -270,7 +270,8 @@ ccw_device_wake_up(struct ccw_device *cdev, unsigned long ip, struct irb *irb) * We didn't get channel end / device end. Check if path * verification has been started; we can retry after it has * finished. We also retry unit checks except for command reject - * or intervention required. + * or intervention required. Also check for long busy + * conditions. */ if (cdev->private->flags.doverify || cdev->private->state == DEV_STATE_VERIFY) @@ -279,6 +280,10 @@ ccw_device_wake_up(struct ccw_device *cdev, unsigned long ip, struct irb *irb) !(irb->ecw[0] & (SNS0_CMD_REJECT | SNS0_INTERVENTION_REQ))) cdev->private->intparm = -EAGAIN; + else if ((irb->scsw.dstat & DEV_STAT_ATTENTION) && + (irb->scsw.dstat & DEV_STAT_DEV_END) && + (irb->scsw.dstat & DEV_STAT_UNIT_EXCEP)) + cdev->private->intparm = -EAGAIN; else cdev->private->intparm = -EIO; diff --git a/drivers/s390/cio/device_pgid.c b/drivers/s390/cio/device_pgid.c index 85b1020a1fc..54cb64ed078 100644 --- a/drivers/s390/cio/device_pgid.c +++ b/drivers/s390/cio/device_pgid.c @@ -9,7 +9,6 @@ * Path Group ID functions. */ -#include <linux/config.h> #include <linux/module.h> #include <linux/init.h> diff --git a/drivers/s390/cio/device_status.c b/drivers/s390/cio/device_status.c index 6c762b43f92..14bef2c179b 100644 --- a/drivers/s390/cio/device_status.c +++ b/drivers/s390/cio/device_status.c @@ -9,7 +9,6 @@ * Status accumulation and basic sense functions. */ -#include <linux/config.h> #include <linux/module.h> #include <linux/init.h> diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c index 96f519281d9..b70039af70d 100644 --- a/drivers/s390/cio/qdio.c +++ b/drivers/s390/cio/qdio.c @@ -30,7 +30,6 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -#include <linux/config.h> #include <linux/module.h> #include <linux/init.h> diff --git a/drivers/s390/crypto/z90crypt.h b/drivers/s390/crypto/z90crypt.h index 5e6b1f535f6..0ca1d126ccb 100644 --- a/drivers/s390/crypto/z90crypt.h +++ b/drivers/s390/crypto/z90crypt.h @@ -1,7 +1,7 @@ /* * linux/drivers/s390/crypto/z90crypt.h * - * z90crypt 1.3.3 + * z90crypt 1.3.3 (kernel-private header) * * Copyright (C) 2001, 2005 IBM Corporation * Author(s): Robert Burroughs (burrough@us.ibm.com) @@ -27,188 +27,7 @@ #ifndef _Z90CRYPT_H_ #define _Z90CRYPT_H_ -#include <linux/ioctl.h> - -#define z90crypt_VERSION 1 -#define z90crypt_RELEASE 3 // 2 = PCIXCC, 3 = rewrite for coding standards -#define z90crypt_VARIANT 3 // 3 = CEX2A support - -/** - * struct ica_rsa_modexpo - * - * Requirements: - * - outputdatalength is at least as large as inputdatalength. - * - All key parts are right justified in their fields, padded on - * the left with zeroes. - * - length(b_key) = inputdatalength - * - length(n_modulus) = inputdatalength - */ -struct ica_rsa_modexpo { - char __user * inputdata; - unsigned int inputdatalength; - char __user * outputdata; - unsigned int outputdatalength; - char __user * b_key; - char __user * n_modulus; -}; - -/** - * struct ica_rsa_modexpo_crt - * - * Requirements: - * - inputdatalength is even. - * - outputdatalength is at least as large as inputdatalength. - * - All key parts are right justified in their fields, padded on - * the left with zeroes. - * - length(bp_key) = inputdatalength/2 + 8 - * - length(bq_key) = inputdatalength/2 - * - length(np_key) = inputdatalength/2 + 8 - * - length(nq_key) = inputdatalength/2 - * - length(u_mult_inv) = inputdatalength/2 + 8 - */ -struct ica_rsa_modexpo_crt { - char __user * inputdata; - unsigned int inputdatalength; - char __user * outputdata; - unsigned int outputdatalength; - char __user * bp_key; - char __user * bq_key; - char __user * np_prime; - char __user * nq_prime; - char __user * u_mult_inv; -}; - -#define Z90_IOCTL_MAGIC 'z' // NOTE: Need to allocate from linux folks - -/** - * Interface notes: - * - * The ioctl()s which are implemented (along with relevant details) - * are: - * - * ICARSAMODEXPO - * Perform an RSA operation using a Modulus-Exponent pair - * This takes an ica_rsa_modexpo struct as its arg. - * - * NOTE: please refer to the comments preceding this structure - * for the implementation details for the contents of the - * block - * - * ICARSACRT - * Perform an RSA operation using a Chinese-Remainder Theorem key - * This takes an ica_rsa_modexpo_crt struct as its arg. - * - * NOTE: please refer to the comments preceding this structure - * for the implementation details for the contents of the - * block - * - * Z90STAT_TOTALCOUNT - * Return an integer count of all device types together. - * - * Z90STAT_PCICACOUNT - * Return an integer count of all PCICAs. - * - * Z90STAT_PCICCCOUNT - * Return an integer count of all PCICCs. - * - * Z90STAT_PCIXCCMCL2COUNT - * Return an integer count of all MCL2 PCIXCCs. - * - * Z90STAT_PCIXCCMCL3COUNT - * Return an integer count of all MCL3 PCIXCCs. - * - * Z90STAT_CEX2CCOUNT - * Return an integer count of all CEX2Cs. - * - * Z90STAT_CEX2ACOUNT - * Return an integer count of all CEX2As. - * - * Z90STAT_REQUESTQ_COUNT - * Return an integer count of the number of entries waiting to be - * sent to a device. - * - * Z90STAT_PENDINGQ_COUNT - * Return an integer count of the number of entries sent to a - * device awaiting the reply. - * - * Z90STAT_TOTALOPEN_COUNT - * Return an integer count of the number of open file handles. - * - * Z90STAT_DOMAIN_INDEX - * Return the integer value of the Cryptographic Domain. - * - * Z90STAT_STATUS_MASK - * Return an 64 element array of unsigned chars for the status of - * all devices. - * 0x01: PCICA - * 0x02: PCICC - * 0x03: PCIXCC_MCL2 - * 0x04: PCIXCC_MCL3 - * 0x05: CEX2C - * 0x06: CEX2A - * 0x0d: device is disabled via the proc filesystem - * - * Z90STAT_QDEPTH_MASK - * Return an 64 element array of unsigned chars for the queue - * depth of all devices. - * - * Z90STAT_PERDEV_REQCNT - * Return an 64 element array of unsigned integers for the number - * of successfully completed requests per device since the device - * was detected and made available. - * - * ICAZ90STATUS (deprecated) - * Return some device driver status in a ica_z90_status struct - * This takes an ica_z90_status struct as its arg. - * - * NOTE: this ioctl() is deprecated, and has been replaced with - * single ioctl()s for each type of status being requested - * - * Z90STAT_PCIXCCCOUNT (deprecated) - * Return an integer count of all PCIXCCs (MCL2 + MCL3). - * This is DEPRECATED now that MCL3 PCIXCCs are treated differently from - * MCL2 PCIXCCs. - * - * Z90QUIESCE (not recommended) - * Quiesce the driver. This is intended to stop all new - * requests from being processed. Its use is NOT recommended, - * except in circumstances where there is no other way to stop - * callers from accessing the driver. Its original use was to - * allow the driver to be "drained" of work in preparation for - * a system shutdown. - * - * NOTE: once issued, this ban on new work cannot be undone - * except by unloading and reloading the driver. - */ - -/** - * Supported ioctl calls - */ -#define ICARSAMODEXPO _IOC(_IOC_READ|_IOC_WRITE, Z90_IOCTL_MAGIC, 0x05, 0) -#define ICARSACRT _IOC(_IOC_READ|_IOC_WRITE, Z90_IOCTL_MAGIC, 0x06, 0) - -/* DEPRECATED status calls (bound for removal at some point) */ -#define ICAZ90STATUS _IOR(Z90_IOCTL_MAGIC, 0x10, struct ica_z90_status) -#define Z90STAT_PCIXCCCOUNT _IOR(Z90_IOCTL_MAGIC, 0x43, int) - -/* unrelated to ICA callers */ -#define Z90QUIESCE _IO(Z90_IOCTL_MAGIC, 0x11) - -/* New status calls */ -#define Z90STAT_TOTALCOUNT _IOR(Z90_IOCTL_MAGIC, 0x40, int) -#define Z90STAT_PCICACOUNT _IOR(Z90_IOCTL_MAGIC, 0x41, int) -#define Z90STAT_PCICCCOUNT _IOR(Z90_IOCTL_MAGIC, 0x42, int) -#define Z90STAT_PCIXCCMCL2COUNT _IOR(Z90_IOCTL_MAGIC, 0x4b, int) -#define Z90STAT_PCIXCCMCL3COUNT _IOR(Z90_IOCTL_MAGIC, 0x4c, int) -#define Z90STAT_CEX2CCOUNT _IOR(Z90_IOCTL_MAGIC, 0x4d, int) -#define Z90STAT_CEX2ACOUNT _IOR(Z90_IOCTL_MAGIC, 0x4e, int) -#define Z90STAT_REQUESTQ_COUNT _IOR(Z90_IOCTL_MAGIC, 0x44, int) -#define Z90STAT_PENDINGQ_COUNT _IOR(Z90_IOCTL_MAGIC, 0x45, int) -#define Z90STAT_TOTALOPEN_COUNT _IOR(Z90_IOCTL_MAGIC, 0x46, int) -#define Z90STAT_DOMAIN_INDEX _IOR(Z90_IOCTL_MAGIC, 0x47, int) -#define Z90STAT_STATUS_MASK _IOR(Z90_IOCTL_MAGIC, 0x48, char[64]) -#define Z90STAT_QDEPTH_MASK _IOR(Z90_IOCTL_MAGIC, 0x49, char[64]) -#define Z90STAT_PERDEV_REQCNT _IOR(Z90_IOCTL_MAGIC, 0x4a, int[64]) +#include <asm/z90crypt.h> /** * local errno definitions diff --git a/drivers/s390/crypto/z90main.c b/drivers/s390/crypto/z90main.c index 982acc7303e..b2f20ab8431 100644 --- a/drivers/s390/crypto/z90main.c +++ b/drivers/s390/crypto/z90main.c @@ -411,7 +411,6 @@ static struct miscdevice z90crypt_misc_device = { .minor = Z90CRYPT_MINOR, .name = DEV_NAME, .fops = &z90crypt_fops, - .devfs_name = DEV_NAME }; /** diff --git a/drivers/s390/net/fsm.c b/drivers/s390/net/fsm.c index 7145e2134cf..2c1db8036b7 100644 --- a/drivers/s390/net/fsm.c +++ b/drivers/s390/net/fsm.c @@ -4,7 +4,6 @@ */ #include "fsm.h" -#include <linux/config.h> #include <linux/module.h> #include <linux/timer.h> diff --git a/drivers/s390/net/iucv.c b/drivers/s390/net/iucv.c index e0c7deb9883..189a4927543 100644 --- a/drivers/s390/net/iucv.c +++ b/drivers/s390/net/iucv.c @@ -33,7 +33,6 @@ #include <linux/module.h> #include <linux/moduleparam.h> -#include <linux/config.h> #include <linux/spinlock.h> #include <linux/kernel.h> diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c index f94419b334f..2eded55ae88 100644 --- a/drivers/s390/net/lcs.c +++ b/drivers/s390/net/lcs.c @@ -1140,10 +1140,9 @@ list_modified: } } /* re-insert all entries from the failed_list into ipm_list */ - list_for_each_entry_safe(ipm, tmp, &failed_list, list) { - list_del_init(&ipm->list); - list_add_tail(&ipm->list, &card->ipm_list); - } + list_for_each_entry_safe(ipm, tmp, &failed_list, list) + list_move_tail(&ipm->list, &card->ipm_list); + spin_unlock_irqrestore(&card->ipm_lock, flags); } diff --git a/drivers/s390/net/qeth_eddp.c b/drivers/s390/net/qeth_eddp.c index 0bab60a2030..8491598f914 100644 --- a/drivers/s390/net/qeth_eddp.c +++ b/drivers/s390/net/qeth_eddp.c @@ -8,7 +8,6 @@ * Author(s): Thomas Spatzier <tspat@de.ibm.com> * */ -#include <linux/config.h> #include <linux/errno.h> #include <linux/ip.h> #include <linux/inetdevice.h> @@ -420,7 +419,7 @@ __qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx, } tcph = eddp->skb->h.th; while (eddp->skb_offset < eddp->skb->len) { - data_len = min((int)skb_shinfo(eddp->skb)->tso_size, + data_len = min((int)skb_shinfo(eddp->skb)->gso_size, (int)(eddp->skb->len - eddp->skb_offset)); /* prepare qdio hdr */ if (eddp->qh.hdr.l2.id == QETH_HEADER_TYPE_LAYER2){ @@ -515,20 +514,20 @@ qeth_eddp_calc_num_pages(struct qeth_eddp_context *ctx, struct sk_buff *skb, 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); + skbs_per_page = PAGE_SIZE / (skb_shinfo(skb)->gso_size + hdr_len); if (skbs_per_page > 1){ - ctx->num_pages = (skb_shinfo(skb)->tso_segs + 1) / + ctx->num_pages = (skb_shinfo(skb)->gso_segs + 1) / skbs_per_page + 1; ctx->elements_per_skb = 1; } else { /* no -> how many elements per skb? */ - ctx->elements_per_skb = (skb_shinfo(skb)->tso_size + hdr_len + + ctx->elements_per_skb = (skb_shinfo(skb)->gso_size + hdr_len + PAGE_SIZE) >> PAGE_SHIFT; ctx->num_pages = ctx->elements_per_skb * - (skb_shinfo(skb)->tso_segs + 1); + (skb_shinfo(skb)->gso_segs + 1); } ctx->num_elements = ctx->elements_per_skb * - (skb_shinfo(skb)->tso_segs + 1); + (skb_shinfo(skb)->gso_segs + 1); } static inline struct qeth_eddp_context * diff --git a/drivers/s390/net/qeth_main.c b/drivers/s390/net/qeth_main.c index 9e671a48cd2..36733b9823c 100644 --- a/drivers/s390/net/qeth_main.c +++ b/drivers/s390/net/qeth_main.c @@ -27,7 +27,6 @@ */ -#include <linux/config.h> #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/string.h> @@ -4417,7 +4416,7 @@ qeth_send_packet(struct qeth_card *card, struct sk_buff *skb) 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; + unsigned short tso_size = skb_shinfo(skb)->gso_size; int rc; QETH_DBF_TEXT(trace, 6, "sendpkt"); @@ -4453,7 +4452,7 @@ qeth_send_packet(struct qeth_card *card, struct sk_buff *skb) queue = card->qdio.out_qs [qeth_get_priority_queue(card, skb, ipv, cast_type)]; - if (skb_shinfo(skb)->tso_size) + if (skb_shinfo(skb)->gso_size) large_send = card->options.large_send; /*are we able to do TSO ? If so ,prepare and send it from here */ diff --git a/drivers/s390/net/qeth_tso.h b/drivers/s390/net/qeth_tso.h index 24ef40ca956..593f298142c 100644 --- a/drivers/s390/net/qeth_tso.h +++ b/drivers/s390/net/qeth_tso.h @@ -51,7 +51,7 @@ qeth_tso_fill_header(struct qeth_card *card, struct sk_buff *skb) hdr->ext.hdr_version = 1; hdr->ext.hdr_len = 28; /*insert non-fix values */ - hdr->ext.mss = skb_shinfo(skb)->tso_size; + hdr->ext.mss = skb_shinfo(skb)->gso_size; hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4); hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len - sizeof(struct qeth_hdr_tso)); diff --git a/drivers/s390/s390mach.c b/drivers/s390/s390mach.c index f99e55308b3..432136f96e6 100644 --- a/drivers/s390/s390mach.c +++ b/drivers/s390/s390mach.c @@ -8,12 +8,12 @@ * Martin Schwidefsky (schwidefsky@de.ibm.com) */ -#include <linux/config.h> #include <linux/init.h> #include <linux/sched.h> #include <linux/errno.h> #include <linux/workqueue.h> #include <linux/time.h> +#include <linux/kthread.h> #include <asm/lowcore.h> @@ -56,8 +56,6 @@ s390_collect_crw_info(void *param) unsigned int chain; sem = (struct semaphore *)param; - /* Set a nice name. */ - daemonize("kmcheck"); repeat: down_interruptible(sem); slow = 0; @@ -516,7 +514,7 @@ arch_initcall(machine_check_init); static int __init machine_check_crw_init (void) { - kernel_thread(s390_collect_crw_info, &m_sem, CLONE_FS|CLONE_FILES); + kthread_run(s390_collect_crw_info, &m_sem, "kmcheck"); ctl_set_bit(14, 28); /* enable channel report MCH */ return 0; } diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index 395cfc6a344..9cd789b8acd 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -1,18 +1,8 @@ /* + * This file is part of the zfcp device driver for + * FCP adapters for IBM System z9 and zSeries. * - * linux/drivers/s390/scsi/zfcp_aux.c - * - * FCP adapter driver for IBM eServer zSeries - * - * (C) Copyright IBM Corp. 2002, 2004 - * - * Author(s): Martin Peschke <mpeschke@de.ibm.com> - * Raimund Schroeder <raimund.schroeder@de.ibm.com> - * Aron Zeh - * Wolfgang Taphorn - * Stefan Bader <stefan.bader@de.ibm.com> - * Heiko Carstens <heiko.carstens@de.ibm.com> - * Andreas Herrmann <aherrman@de.ibm.com> + * (C) Copyright IBM Corp. 2002, 2006 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -29,6 +19,20 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +/* + * Driver authors: + * Martin Peschke (originator of the driver) + * Raimund Schroeder + * Aron Zeh + * Wolfgang Taphorn + * Stefan Bader + * Heiko Carstens (kernel 2.6 port of the driver) + * Andreas Herrmann + * Maxim Shchetynin + * Volker Sameske + * Ralph Wuerthner + */ + #include "zfcp_ext.h" /* accumulated log level (module parameter) */ @@ -75,15 +79,9 @@ static struct miscdevice zfcp_cfdc_misc = { /* declare driver module init/cleanup functions */ module_init(zfcp_module_init); -MODULE_AUTHOR("Heiko Carstens <heiko.carstens@de.ibm.com>, " - "Andreas Herrman <aherrman@de.ibm.com>, " - "Martin Peschke <mpeschke@de.ibm.com>, " - "Raimund Schroeder <raimund.schroeder@de.ibm.com>, " - "Wolfgang Taphorn <taphorn@de.ibm.com>, " - "Aron Zeh <arzeh@de.ibm.com>, " - "IBM Deutschland Entwicklung GmbH"); +MODULE_AUTHOR("IBM Deutschland Entwicklung GmbH - linux390@de.ibm.com"); MODULE_DESCRIPTION - ("FCP (SCSI over Fibre Channel) HBA driver for IBM eServer zSeries"); + ("FCP (SCSI over Fibre Channel) HBA driver for IBM System z9 and zSeries"); MODULE_LICENSE("GPL"); module_param(device, charp, 0400); @@ -291,12 +289,11 @@ zfcp_cfdc_dev_ioctl(struct file *file, unsigned int command, goto out; } - sg_list = kmalloc(sizeof(struct zfcp_sg_list), GFP_KERNEL); + sg_list = kzalloc(sizeof(struct zfcp_sg_list), GFP_KERNEL); if (sg_list == NULL) { retval = -ENOMEM; goto out; } - memset(sg_list, 0, sizeof(*sg_list)); if (command != ZFCP_CFDC_IOC) { ZFCP_LOG_INFO("IOC request code 0x%x invalid\n", command); @@ -478,14 +475,13 @@ zfcp_sg_list_alloc(struct zfcp_sg_list *sg_list, size_t size) sg_list->count = size >> PAGE_SHIFT; if (size & ~PAGE_MASK) sg_list->count++; - sg_list->sg = kmalloc(sg_list->count * sizeof(struct scatterlist), + sg_list->sg = kcalloc(sg_list->count, sizeof(struct scatterlist), GFP_KERNEL); if (sg_list->sg == NULL) { sg_list->count = 0; retval = -ENOMEM; goto out; } - memset(sg_list->sg, 0, sg_list->count * sizeof(struct scatterlist)); for (i = 0, sg = sg_list->sg; i < sg_list->count; i++, sg++) { sg->length = min(size, PAGE_SIZE); @@ -744,7 +740,7 @@ struct zfcp_unit * zfcp_unit_enqueue(struct zfcp_port *port, fcp_lun_t fcp_lun) { struct zfcp_unit *unit, *tmp_unit; - scsi_lun_t scsi_lun; + unsigned int scsi_lun; int found; /* @@ -758,10 +754,9 @@ zfcp_unit_enqueue(struct zfcp_port *port, fcp_lun_t fcp_lun) if (unit) return NULL; - unit = kmalloc(sizeof (struct zfcp_unit), GFP_KERNEL); + unit = kzalloc(sizeof (struct zfcp_unit), GFP_KERNEL); if (!unit) return NULL; - memset(unit, 0, sizeof (struct zfcp_unit)); /* initialise reference count stuff */ atomic_set(&unit->refcount, 0); @@ -929,13 +924,12 @@ zfcp_adapter_enqueue(struct ccw_device *ccw_device) */ /* try to allocate new adapter data structure (zeroed) */ - adapter = kmalloc(sizeof (struct zfcp_adapter), GFP_KERNEL); + adapter = kzalloc(sizeof (struct zfcp_adapter), GFP_KERNEL); if (!adapter) { ZFCP_LOG_INFO("error: allocation of base adapter " "structure failed\n"); goto out; } - memset(adapter, 0, sizeof (struct zfcp_adapter)); ccw_device->handler = NULL; @@ -997,12 +991,6 @@ zfcp_adapter_enqueue(struct ccw_device *ccw_device) /* intitialise SCSI ER timer */ init_timer(&adapter->scsi_er_timer); - /* set FC service class used per default */ - adapter->fc_service_class = ZFCP_FC_SERVICE_CLASS_DEFAULT; - - sprintf(adapter->name, "%s", zfcp_get_busid_by_adapter(adapter)); - ASCEBC(adapter->name, strlen(adapter->name)); - /* mark adapter unusable as long as sysfs registration is not complete */ atomic_set_mask(ZFCP_STATUS_COMMON_REMOVE, &adapter->status); @@ -1139,10 +1127,9 @@ zfcp_port_enqueue(struct zfcp_adapter *adapter, wwn_t wwpn, u32 status, return NULL; } - port = kmalloc(sizeof (struct zfcp_port), GFP_KERNEL); + port = kzalloc(sizeof (struct zfcp_port), GFP_KERNEL); if (!port) return NULL; - memset(port, 0, sizeof (struct zfcp_port)); /* initialise reference count stuff */ atomic_set(&port->refcount, 0); @@ -1354,18 +1341,19 @@ static void zfcp_fsf_incoming_els_plogi(struct zfcp_adapter *adapter, struct fsf_status_read_buffer *status_buffer) { - logi *els_logi = (logi *) status_buffer->payload; + struct fsf_plogi *els_plogi; struct zfcp_port *port; unsigned long flags; + els_plogi = (struct fsf_plogi *) status_buffer->payload; read_lock_irqsave(&zfcp_data.config_lock, flags); list_for_each_entry(port, &adapter->port_list_head, list) { - if (port->wwpn == (*(wwn_t *) & els_logi->nport_wwn)) + if (port->wwpn == (*(wwn_t *) &els_plogi->serv_param.wwpn)) break; } read_unlock_irqrestore(&zfcp_data.config_lock, flags); - if (!port || (port->wwpn != (*(wwn_t *) & els_logi->nport_wwn))) { + if (!port || (port->wwpn != (*(wwn_t *) &els_plogi->serv_param.wwpn))) { ZFCP_LOG_DEBUG("ignored incoming PLOGI for nonexisting port " "with d_id 0x%08x on adapter %s\n", status_buffer->d_id, @@ -1760,4 +1748,25 @@ zfcp_handle_els_rjt(u32 sq, struct zfcp_ls_rjt_par *rjt_par) return ret; } +/** + * zfcp_plogi_evaluate - evaluate PLOGI playload and copy important fields + * into zfcp_port structure + * @port: zfcp_port structure + * @plogi: plogi payload + */ +void +zfcp_plogi_evaluate(struct zfcp_port *port, struct fsf_plogi *plogi) +{ + port->maxframe_size = plogi->serv_param.common_serv_param[7] | + ((plogi->serv_param.common_serv_param[6] & 0x0F) << 8); + if (plogi->serv_param.class1_serv_param[0] & 0x80) + port->supported_classes |= FC_COS_CLASS1; + if (plogi->serv_param.class2_serv_param[0] & 0x80) + port->supported_classes |= FC_COS_CLASS2; + if (plogi->serv_param.class3_serv_param[0] & 0x80) + port->supported_classes |= FC_COS_CLASS3; + if (plogi->serv_param.class4_serv_param[0] & 0x80) + port->supported_classes |= FC_COS_CLASS4; +} + #undef ZFCP_LOG_AREA diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c index 241136d0c6e..57d8e4bfb8d 100644 --- a/drivers/s390/scsi/zfcp_ccw.c +++ b/drivers/s390/scsi/zfcp_ccw.c @@ -1,16 +1,8 @@ /* - * linux/drivers/s390/scsi/zfcp_ccw.c + * This file is part of the zfcp device driver for + * FCP adapters for IBM System z9 and zSeries. * - * FCP adapter driver for IBM eServer zSeries - * - * CCW driver related routines - * - * (C) Copyright IBM Corp. 2003, 2004 - * - * Authors: - * Martin Peschke <mpeschke@de.ibm.com> - * Heiko Carstens <heiko.carstens@de.ibm.com> - * Andreas Herrmann <aherrman@de.ibm.com> + * (C) Copyright IBM Corp. 2002, 2006 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c index a5f2ba9a8fd..c033145d0f1 100644 --- a/drivers/s390/scsi/zfcp_dbf.c +++ b/drivers/s390/scsi/zfcp_dbf.c @@ -1,12 +1,8 @@ /* + * This file is part of the zfcp device driver for + * FCP adapters for IBM System z9 and zSeries. * - * linux/drivers/s390/scsi/zfcp_dbf.c - * - * FCP adapter driver for IBM eServer zSeries - * - * Debugging facilities - * - * (C) Copyright IBM Corp. 2005 + * (C) Copyright IBM Corp. 2002, 2006 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index 6eba56cd89b..2df512a18e2 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -1,19 +1,8 @@ /* - * - * linux/drivers/s390/scsi/zfcp_def.h - * - * FCP adapter driver for IBM eServer zSeries - * - * (C) Copyright IBM Corp. 2002, 2004 + * This file is part of the zfcp device driver for + * FCP adapters for IBM System z9 and zSeries. * - * Author(s): Martin Peschke <mpeschke@de.ibm.com> - * Raimund Schroeder <raimund.schroeder@de.ibm.com> - * Aron Zeh - * Wolfgang Taphorn - * Stefan Bader <stefan.bader@de.ibm.com> - * Heiko Carstens <heiko.carstens@de.ibm.com> - * Andreas Herrmann <aherrman@de.ibm.com> - * Volker Sameske <sameske@de.ibm.com> + * (C) Copyright IBM Corp. 2002, 2006 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -50,7 +39,6 @@ #include <scsi/scsi_host.h> #include <scsi/scsi_transport.h> #include <scsi/scsi_transport_fc.h> -#include "../../fc4/fc.h" #include "zfcp_fsf.h" #include <asm/ccwdev.h> #include <asm/qdio.h> @@ -64,7 +52,7 @@ /********************* GENERAL DEFINES *********************************/ /* zfcp version number, it consists of major, minor, and patch-level number */ -#define ZFCP_VERSION "4.5.0" +#define ZFCP_VERSION "4.7.0" /** * zfcp_sg_to_address - determine kernel address from struct scatterlist @@ -89,13 +77,9 @@ zfcp_address_to_sg(void *address, struct scatterlist *list) list->offset = ((unsigned long) address) & (PAGE_SIZE - 1); } -/********************* SCSI SPECIFIC DEFINES *********************************/ +#define REQUEST_LIST_SIZE 128 -/* 32 bit for SCSI ID and LUN as long as the SCSI stack uses this type */ -typedef u32 scsi_id_t; -typedef u32 scsi_lun_t; - -#define ZFCP_ERP_SCSI_LOW_MEM_TIMEOUT (100*HZ) +/********************* SCSI SPECIFIC DEFINES *********************************/ #define ZFCP_SCSI_ER_TIMEOUT (100*HZ) /********************* CIO/QDIO SPECIFIC DEFINES *****************************/ @@ -233,8 +217,9 @@ struct fcp_rsp_iu { #define RSP_CODE_TASKMAN_FAILED 5 /* see fc-fs */ -#define LS_FAN 0x60000000 -#define LS_RSCN 0x61040000 +#define LS_RSCN 0x61040000 +#define LS_LOGO 0x05000000 +#define LS_PLOGI 0x03000000 struct fcp_rscn_head { u8 command; @@ -263,13 +248,6 @@ struct fcp_rscn_element { #define ZFCP_NO_PORTS_PER_DOMAIN 0x10000 #define ZFCP_NO_PORTS_PER_FABRIC 0x1000000 -struct fcp_fan { - u32 command; - u32 fport_did; - wwn_t fport_wwpn; - wwn_t fport_wwname; -} __attribute__((packed)); - /* see fc-ph */ struct fcp_logo { u32 command; @@ -507,9 +485,6 @@ struct zfcp_rc_entry { #define ZFCP_NAME "zfcp" -/* read-only LUN sharing switch initial value */ -#define ZFCP_RO_LUN_SHARING_DEFAULTS 0 - /* independent log areas */ #define ZFCP_LOG_AREA_OTHER 0 #define ZFCP_LOG_AREA_SCSI 1 @@ -608,7 +583,6 @@ do { \ * and unit */ #define ZFCP_COMMON_FLAGS 0xfff00000 -#define ZFCP_SPECIFIC_FLAGS 0x000fffff /* common status bits */ #define ZFCP_STATUS_COMMON_REMOVE 0x80000000 @@ -633,11 +607,6 @@ do { \ #define ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED 0x00000200 #define ZFCP_STATUS_ADAPTER_XPORT_OK 0x00000800 -#define ZFCP_STATUS_ADAPTER_SCSI_UP \ - (ZFCP_STATUS_COMMON_UNBLOCKED | \ - ZFCP_STATUS_ADAPTER_REGISTERED) - - /* FC-PH/FC-GS well-known address identifiers for generic services */ #define ZFCP_DID_MANAGEMENT_SERVICE 0xFFFFFA #define ZFCP_DID_TIME_SERVICE 0xFFFFFB @@ -652,7 +621,6 @@ do { \ #define ZFCP_STATUS_PORT_NO_WWPN 0x00000008 #define ZFCP_STATUS_PORT_NO_SCSI_ID 0x00000010 #define ZFCP_STATUS_PORT_INVALID_WWPN 0x00000020 -#define ZFCP_STATUS_PORT_ACCESS_DENIED 0x00000040 /* for ports with well known addresses */ #define ZFCP_STATUS_PORT_WKA \ @@ -908,15 +876,12 @@ struct zfcp_adapter { wwn_t peer_wwpn; /* P2P peer WWPN */ u32 peer_d_id; /* P2P peer D_ID */ struct ccw_device *ccw_device; /* S/390 ccw device */ - u8 fc_service_class; u32 hydra_version; /* Hydra version */ u32 fsf_lic_version; u32 adapter_features; /* FCP channel features */ u32 connection_features; /* host connection features */ u32 hardware_version; /* of FCP channel */ struct Scsi_Host *scsi_host; /* Pointer to mid-layer */ - unsigned short scsi_host_no; /* Assigned host number */ - unsigned char name[9]; struct list_head port_list_head; /* remote port list */ struct list_head port_remove_lh; /* head of ports to be removed */ @@ -994,6 +959,8 @@ struct zfcp_port { u32 handle; /* handle assigned by FSF */ struct zfcp_erp_action erp_action; /* pending error recovery */ atomic_t erp_counter; + u32 maxframe_size; + u32 supported_classes; }; /* the struct device sysfs_device must be at the beginning of this structure. @@ -1008,7 +975,7 @@ struct zfcp_unit { refcount drop to zero */ struct zfcp_port *port; /* remote port of unit */ atomic_t status; /* status of this logical unit */ - scsi_lun_t scsi_lun; /* own SCSI LUN */ + unsigned int scsi_lun; /* own SCSI LUN */ fcp_lun_t fcp_lun; /* own FCP_LUN */ u32 handle; /* handle assigned by FSF */ struct scsi_device *device; /* scsi device struct pointer */ @@ -1052,11 +1019,6 @@ struct zfcp_data { struct list_head adapter_list_head; /* head of adapter list */ struct list_head adapter_remove_lh; /* head of adapters to be removed */ - rwlock_t status_read_lock; /* for status read thread */ - struct list_head status_read_receive_head; - struct list_head status_read_send_head; - struct semaphore status_read_sema; - wait_queue_head_t status_read_thread_wqh; u32 adapters; /* # of adapters in list */ rwlock_t config_lock; /* serialises changes to adapter/port/unit @@ -1095,9 +1057,6 @@ struct zfcp_fsf_req_pool_element { /********************** ZFCP SPECIFIC DEFINES ********************************/ -#define ZFCP_FSFREQ_CLEANUP_TIMEOUT HZ/10 - -#define ZFCP_KNOWN 0x00000001 #define ZFCP_REQ_AUTO_CLEANUP 0x00000002 #define ZFCP_WAIT_FOR_SBAL 0x00000004 #define ZFCP_REQ_NO_QTCB 0x00000008 @@ -1105,9 +1064,6 @@ struct zfcp_fsf_req_pool_element { #define ZFCP_SET 0x00000100 #define ZFCP_CLEAR 0x00000200 -#define ZFCP_INTERRUPTIBLE 1 -#define ZFCP_UNINTERRUPTIBLE 0 - #ifndef atomic_test_mask #define atomic_test_mask(mask, target) \ ((atomic_read(target) & mask) == mask) diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index 57cb628a05a..909731b99d2 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -1,18 +1,8 @@ /* - * - * linux/drivers/s390/scsi/zfcp_erp.c - * - * FCP adapter driver for IBM eServer zSeries - * - * (C) Copyright IBM Corp. 2002, 2004 - * - * Author(s): Martin Peschke <mpeschke@de.ibm.com> - * Raimund Schroeder <raimund.schroeder@de.ibm.com> - * Aron Zeh - * Wolfgang Taphorn - * Stefan Bader <stefan.bader@de.ibm.com> - * Heiko Carstens <heiko.carstens@de.ibm.com> - * Andreas Herrmann <aherrman@de.ibm.com> + * This file is part of the zfcp device driver for + * FCP adapters for IBM System z9 and zSeries. + * + * (C) Copyright IBM Corp. 2002, 2006 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -177,7 +167,7 @@ zfcp_fsf_scsi_er_timeout_handler(unsigned long data) * initiates adapter recovery which is done * asynchronously * - * returns: 0 - initiated action succesfully + * returns: 0 - initiated action successfully * <0 - failed to initiate action */ int @@ -213,7 +203,7 @@ zfcp_erp_adapter_reopen_internal(struct zfcp_adapter *adapter, int clear_mask) * purpose: Wrappper for zfcp_erp_adapter_reopen_internal * used to ensure the correct locking * - * returns: 0 - initiated action succesfully + * returns: 0 - initiated action successfully * <0 - failed to initiate action */ int @@ -231,13 +221,6 @@ zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, int clear_mask) return retval; } -/* - * function: - * - * purpose: - * - * returns: - */ int zfcp_erp_adapter_shutdown(struct zfcp_adapter *adapter, int clear_mask) { @@ -251,13 +234,6 @@ zfcp_erp_adapter_shutdown(struct zfcp_adapter *adapter, int clear_mask) return retval; } -/* - * function: - * - * purpose: - * - * returns: - */ int zfcp_erp_port_shutdown(struct zfcp_port *port, int clear_mask) { @@ -271,13 +247,6 @@ zfcp_erp_port_shutdown(struct zfcp_port *port, int clear_mask) return retval; } -/* - * function: - * - * purpose: - * - * returns: - */ int zfcp_erp_unit_shutdown(struct zfcp_unit *unit, int clear_mask) { @@ -306,20 +275,17 @@ zfcp_erp_adisc(struct zfcp_port *port) int retval = 0; struct timer_list *timer; - send_els = kmalloc(sizeof(struct zfcp_send_els), GFP_ATOMIC); + send_els = kzalloc(sizeof(struct zfcp_send_els), GFP_ATOMIC); if (send_els == NULL) goto nomem; - memset(send_els, 0, sizeof(*send_els)); - send_els->req = kmalloc(sizeof(struct scatterlist), GFP_ATOMIC); + send_els->req = kzalloc(sizeof(struct scatterlist), GFP_ATOMIC); if (send_els->req == NULL) goto nomem; - memset(send_els->req, 0, sizeof(*send_els->req)); - send_els->resp = kmalloc(sizeof(struct scatterlist), GFP_ATOMIC); + send_els->resp = kzalloc(sizeof(struct scatterlist), GFP_ATOMIC); if (send_els->resp == NULL) goto nomem; - memset(send_els->resp, 0, sizeof(*send_els->resp)); address = (void *) get_zeroed_page(GFP_ATOMIC); if (address == NULL) @@ -503,7 +469,7 @@ zfcp_test_link(struct zfcp_port *port) * initiates Forced Reopen recovery which is done * asynchronously * - * returns: 0 - initiated action succesfully + * returns: 0 - initiated action successfully * <0 - failed to initiate action */ static int @@ -543,7 +509,7 @@ zfcp_erp_port_forced_reopen_internal(struct zfcp_port *port, int clear_mask) * purpose: Wrappper for zfcp_erp_port_forced_reopen_internal * used to ensure the correct locking * - * returns: 0 - initiated action succesfully + * returns: 0 - initiated action successfully * <0 - failed to initiate action */ int @@ -570,7 +536,7 @@ zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear_mask) * initiates Reopen recovery which is done * asynchronously * - * returns: 0 - initiated action succesfully + * returns: 0 - initiated action successfully * <0 - failed to initiate action */ static int @@ -639,7 +605,7 @@ zfcp_erp_port_reopen(struct zfcp_port *port, int clear_mask) * initiates Reopen recovery which is done * asynchronously * - * returns: 0 - initiated action succesfully + * returns: 0 - initiated action successfully * <0 - failed to initiate action */ static int @@ -812,13 +778,6 @@ zfcp_erp_unit_unblock(struct zfcp_unit *unit) atomic_set_mask(ZFCP_STATUS_COMMON_UNBLOCKED, &unit->status); } -/* - * function: - * - * purpose: - * - * returns: - */ static void zfcp_erp_action_ready(struct zfcp_erp_action *erp_action) { @@ -1356,13 +1315,6 @@ zfcp_erp_strategy_check_action(struct zfcp_erp_action *erp_action, int retval) return retval; } -/* - * function: - * - * purpose: - * - * returns: - */ static int zfcp_erp_strategy_do_action(struct zfcp_erp_action *erp_action) { @@ -1538,13 +1490,6 @@ zfcp_erp_strategy_check_target(struct zfcp_erp_action *erp_action, int result) return result; } -/* - * function: - * - * purpose: - * - * returns: - */ static int zfcp_erp_strategy_statechange(int action, u32 status, @@ -1586,13 +1531,6 @@ zfcp_erp_strategy_statechange(int action, return retval; } -/* - * function: - * - * purpose: - * - * returns: - */ static inline int zfcp_erp_strategy_statechange_detected(atomic_t * target_status, u32 erp_status) { @@ -1605,13 +1543,6 @@ zfcp_erp_strategy_statechange_detected(atomic_t * target_status, u32 erp_status) !(ZFCP_STATUS_ERP_CLOSE_ONLY & erp_status)); } -/* - * function: - * - * purpose: - * - * returns: - */ static int zfcp_erp_strategy_check_unit(struct zfcp_unit *unit, int result) { @@ -1642,13 +1573,6 @@ zfcp_erp_strategy_check_unit(struct zfcp_unit *unit, int result) return result; } -/* - * function: - * - * purpose: - * - * returns: - */ static int zfcp_erp_strategy_check_port(struct zfcp_port *port, int result) { @@ -1678,13 +1602,6 @@ zfcp_erp_strategy_check_port(struct zfcp_port *port, int result) return result; } -/* - * function: - * - * purpose: - * - * returns: - */ static int zfcp_erp_strategy_check_adapter(struct zfcp_adapter *adapter, int result) { @@ -1764,13 +1681,6 @@ zfcp_erp_strategy_followup_actions(int action, return 0; } -/* - * function: - * - * purpose: - * - * returns: - */ static int zfcp_erp_strategy_check_queues(struct zfcp_adapter *adapter) { @@ -1809,12 +1719,6 @@ zfcp_erp_wait(struct zfcp_adapter *adapter) return retval; } -/* - * function: zfcp_erp_modify_adapter_status - * - * purpose: - * - */ void zfcp_erp_modify_adapter_status(struct zfcp_adapter *adapter, u32 mask, int set_or_clear) @@ -1901,7 +1805,7 @@ zfcp_erp_modify_unit_status(struct zfcp_unit *unit, u32 mask, int set_or_clear) * purpose: Wrappper for zfcp_erp_port_reopen_all_internal * used to ensure the correct locking * - * returns: 0 - initiated action succesfully + * returns: 0 - initiated action successfully * <0 - failed to initiate action */ int @@ -1919,13 +1823,6 @@ zfcp_erp_port_reopen_all(struct zfcp_adapter *adapter, int clear_mask) return retval; } -/* - * function: - * - * purpose: - * - * returns: FIXME - */ static int zfcp_erp_port_reopen_all_internal(struct zfcp_adapter *adapter, int clear_mask) { @@ -2370,13 +2267,6 @@ zfcp_erp_adapter_strategy_open_fsf_xport(struct zfcp_erp_action *erp_action) return ret; } -/* - * function: - * - * purpose: - * - * returns: - */ static int zfcp_erp_adapter_strategy_open_fsf_statusread(struct zfcp_erp_action *erp_action) @@ -2545,13 +2435,6 @@ zfcp_erp_port_strategy(struct zfcp_erp_action *erp_action) return retval; } -/* - * function: - * - * purpose: - * - * returns: - */ static int zfcp_erp_port_strategy_open(struct zfcp_erp_action *erp_action) { @@ -2566,15 +2449,6 @@ zfcp_erp_port_strategy_open(struct zfcp_erp_action *erp_action) return retval; } -/* - * function: - * - * purpose: - * - * returns: - * - * FIXME(design): currently only prepared for fabric (nameserver!) - */ static int zfcp_erp_port_strategy_open_common(struct zfcp_erp_action *erp_action) { @@ -2690,13 +2564,6 @@ zfcp_erp_port_strategy_open_common(struct zfcp_erp_action *erp_action) return retval; } -/* - * function: - * - * purpose: - * - * returns: - */ static int zfcp_erp_port_strategy_open_nameserver(struct zfcp_erp_action *erp_action) { @@ -2813,13 +2680,6 @@ zfcp_erp_port_forced_strategy_close(struct zfcp_erp_action *erp_action) return retval; } -/* - * function: - * - * purpose: - * - * returns: - */ static int zfcp_erp_port_strategy_clearstati(struct zfcp_port *port) { @@ -3022,13 +2882,6 @@ zfcp_erp_unit_strategy(struct zfcp_erp_action *erp_action) return retval; } -/* - * function: - * - * purpose: - * - * returns: - */ static int zfcp_erp_unit_strategy_clearstati(struct zfcp_unit *unit) { @@ -3129,13 +2982,6 @@ zfcp_erp_unit_strategy_open(struct zfcp_erp_action *erp_action) return retval; } -/* - * function: - * - * purpose: - * - * returns: - */ static inline void zfcp_erp_timeout_init(struct zfcp_erp_action *erp_action) { @@ -3331,13 +3177,6 @@ zfcp_erp_action_enqueue(int action, return retval; } -/* - * function: - * - * purpose: - * - * returns: - */ static int zfcp_erp_action_dequeue(struct zfcp_erp_action *erp_action) { @@ -3402,9 +3241,13 @@ zfcp_erp_action_cleanup(int action, struct zfcp_adapter *adapter, break; case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED: case ZFCP_ERP_ACTION_REOPEN_PORT: + if (atomic_test_mask(ZFCP_STATUS_PORT_NO_WWPN, + &port->status)) { + zfcp_port_put(port); + break; + } + if ((result == ZFCP_ERP_SUCCEEDED) - && !atomic_test_mask(ZFCP_STATUS_PORT_NO_WWPN, - &port->status) && !port->rport) { struct fc_rport_identifiers ids; ids.node_name = port->wwnn; @@ -3418,12 +3261,30 @@ zfcp_erp_action_cleanup(int action, struct zfcp_adapter *adapter, "(adapter %s, wwpn=0x%016Lx)\n", zfcp_get_busid_by_port(port), port->wwpn); - else + else { scsi_flush_work(adapter->scsi_host); + port->rport->maxframe_size = port->maxframe_size; + port->rport->supported_classes = + port->supported_classes; + } + } + if ((result != ZFCP_ERP_SUCCEEDED) && port->rport) { + fc_remote_port_delete(port->rport); + port->rport = NULL; } zfcp_port_put(port); break; case ZFCP_ERP_ACTION_REOPEN_ADAPTER: + if (result != ZFCP_ERP_SUCCEEDED) { + struct zfcp_port *port; + list_for_each_entry(port, &adapter->port_list_head, list) + if (port->rport && + !atomic_test_mask(ZFCP_STATUS_PORT_WKA, + &port->status)) { + fc_remote_port_delete(port->rport); + port->rport = NULL; + } + } zfcp_adapter_put(adapter); break; default: @@ -3432,13 +3293,6 @@ zfcp_erp_action_cleanup(int action, struct zfcp_adapter *adapter, } -/* - * function: - * - * purpose: - * - * returns: FIXME - */ static int zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *adapter) { @@ -3455,13 +3309,6 @@ zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *adapter) return retval; } -/* - * function: - * - * purpose: - * - * returns: FIXME - */ static int zfcp_erp_action_dismiss_port(struct zfcp_port *port) { @@ -3480,13 +3327,6 @@ zfcp_erp_action_dismiss_port(struct zfcp_port *port) return retval; } -/* - * function: - * - * purpose: - * - * returns: FIXME - */ static int zfcp_erp_action_dismiss_unit(struct zfcp_unit *unit) { @@ -3501,13 +3341,6 @@ zfcp_erp_action_dismiss_unit(struct zfcp_unit *unit) return retval; } -/* - * function: - * - * purpose: moves erp_action to 'erp running list' - * - * returns: - */ static inline void zfcp_erp_action_to_running(struct zfcp_erp_action *erp_action) { @@ -3518,13 +3351,6 @@ zfcp_erp_action_to_running(struct zfcp_erp_action *erp_action) list_move(&erp_action->list, &erp_action->adapter->erp_running_head); } -/* - * function: - * - * purpose: moves erp_action to 'erp ready list' - * - * returns: - */ static inline void zfcp_erp_action_to_ready(struct zfcp_erp_action *erp_action) { @@ -3535,11 +3361,6 @@ zfcp_erp_action_to_ready(struct zfcp_erp_action *erp_action) list_move(&erp_action->list, &erp_action->adapter->erp_ready_head); } -/* - * function: zfcp_erp_port_boxed - * - * purpose: - */ void zfcp_erp_port_boxed(struct zfcp_port *port) { @@ -3556,11 +3377,6 @@ zfcp_erp_port_boxed(struct zfcp_port *port) zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED); } -/* - * function: zfcp_erp_unit_boxed - * - * purpose: - */ void zfcp_erp_unit_boxed(struct zfcp_unit *unit) { @@ -3574,11 +3390,6 @@ zfcp_erp_unit_boxed(struct zfcp_unit *unit) zfcp_erp_unit_reopen(unit, ZFCP_STATUS_COMMON_ERP_FAILED); } -/* - * function: zfcp_erp_port_access_denied - * - * purpose: - */ void zfcp_erp_port_access_denied(struct zfcp_port *port) { @@ -3595,11 +3406,6 @@ zfcp_erp_port_access_denied(struct zfcp_port *port) read_unlock_irqrestore(&zfcp_data.config_lock, flags); } -/* - * function: zfcp_erp_unit_access_denied - * - * purpose: - */ void zfcp_erp_unit_access_denied(struct zfcp_unit *unit) { @@ -3613,11 +3419,6 @@ zfcp_erp_unit_access_denied(struct zfcp_unit *unit) ZFCP_SET); } -/* - * function: zfcp_erp_adapter_access_changed - * - * purpose: - */ void zfcp_erp_adapter_access_changed(struct zfcp_adapter *adapter) { @@ -3628,7 +3429,7 @@ zfcp_erp_adapter_access_changed(struct zfcp_adapter *adapter) return; debug_text_event(adapter->erp_dbf, 3, "a_access_recover"); - debug_event(adapter->erp_dbf, 3, &adapter->name, 8); + debug_event(adapter->erp_dbf, 3, zfcp_get_busid_by_adapter(adapter), 8); read_lock_irqsave(&zfcp_data.config_lock, flags); if (adapter->nameserver_port) @@ -3639,11 +3440,6 @@ zfcp_erp_adapter_access_changed(struct zfcp_adapter *adapter) read_unlock_irqrestore(&zfcp_data.config_lock, flags); } -/* - * function: zfcp_erp_port_access_changed - * - * purpose: - */ void zfcp_erp_port_access_changed(struct zfcp_port *port) { @@ -3672,11 +3468,6 @@ zfcp_erp_port_access_changed(struct zfcp_port *port) zfcp_get_busid_by_adapter(adapter), port->wwpn); } -/* - * function: zfcp_erp_unit_access_changed - * - * purpose: - */ void zfcp_erp_unit_access_changed(struct zfcp_unit *unit) { diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h index 700f5402a97..d02366004cd 100644 --- a/drivers/s390/scsi/zfcp_ext.h +++ b/drivers/s390/scsi/zfcp_ext.h @@ -1,18 +1,8 @@ /* - * - * linux/drivers/s390/scsi/zfcp_ext.h - * - * FCP adapter driver for IBM eServer zSeries - * - * (C) Copyright IBM Corp. 2002, 2004 + * This file is part of the zfcp device driver for + * FCP adapters for IBM System z9 and zSeries. * - * Author(s): Martin Peschke <mpeschke@de.ibm.com> - * Raimund Schroeder <raimund.schroeder@de.ibm.com> - * Aron Zeh - * Wolfgang Taphorn - * Stefan Bader <stefan.bader@de.ibm.com> - * Heiko Carstens <heiko.carstens@de.ibm.com> - * Andreas Herrmann <aherrman@de.ibm.com> + * (C) Copyright IBM Corp. 2002, 2006 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -125,6 +115,7 @@ extern int zfcp_nameserver_enqueue(struct zfcp_adapter *); extern int zfcp_ns_gid_pn_request(struct zfcp_erp_action *); extern int zfcp_check_ct_response(struct ct_hdr *); extern int zfcp_handle_els_rjt(u32, struct zfcp_ls_rjt_par *); +extern void zfcp_plogi_evaluate(struct zfcp_port *, struct fsf_plogi *); /******************************* SCSI ****************************************/ extern int zfcp_adapter_scsi_register(struct zfcp_adapter *); @@ -141,8 +132,6 @@ extern int zfcp_scsi_command_async(struct zfcp_adapter *,struct zfcp_unit *, struct scsi_cmnd *, struct timer_list *); extern int zfcp_scsi_command_sync(struct zfcp_unit *, struct scsi_cmnd *, struct timer_list *); -extern void zfcp_set_fc_host_attrs(struct zfcp_adapter *); -extern void zfcp_set_fc_rport_attrs(struct zfcp_port *); extern struct scsi_transport_template *zfcp_transport_template; extern struct fc_function_template zfcp_transport_functions; diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index 662ec571d73..6335f922918 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -1,19 +1,8 @@ /* + * This file is part of the zfcp device driver for + * FCP adapters for IBM System z9 and zSeries. * - * linux/drivers/s390/scsi/zfcp_fsf.c - * - * FCP adapter driver for IBM eServer zSeries - * - * (C) Copyright IBM Corp. 2002, 2004 - * - * Author(s): Martin Peschke <mpeschke@de.ibm.com> - * Raimund Schroeder <raimund.schroeder@de.ibm.com> - * Aron Zeh - * Wolfgang Taphorn - * Stefan Bader <stefan.bader@de.ibm.com> - * Heiko Carstens <heiko.carstens@de.ibm.com> - * Andreas Herrmann <aherrman@de.ibm.com> - * Volker Sameske <sameske@de.ibm.com> + * (C) Copyright IBM Corp. 2002, 2006 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -877,6 +866,7 @@ zfcp_fsf_status_read_handler(struct zfcp_fsf_req *fsf_req) struct zfcp_adapter *adapter = fsf_req->adapter; struct fsf_status_read_buffer *status_buffer = (struct fsf_status_read_buffer *) fsf_req->data; + struct fsf_bit_error_payload *fsf_bit_error; if (fsf_req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { zfcp_hba_dbf_event_fsf_unsol("dism", adapter, status_buffer); @@ -903,10 +893,37 @@ zfcp_fsf_status_read_handler(struct zfcp_fsf_req *fsf_req) break; case FSF_STATUS_READ_BIT_ERROR_THRESHOLD: - ZFCP_LOG_NORMAL("Bit error threshold data received:\n"); - ZFCP_HEX_DUMP(ZFCP_LOG_LEVEL_NORMAL, - (char *) status_buffer, - sizeof (struct fsf_status_read_buffer)); + fsf_bit_error = (struct fsf_bit_error_payload *) + status_buffer->payload; + ZFCP_LOG_NORMAL("Warning: bit error threshold data " + "received (adapter %s, " + "link failures = %i, loss of sync errors = %i, " + "loss of signal errors = %i, " + "primitive sequence errors = %i, " + "invalid transmission word errors = %i, " + "CRC errors = %i)\n", + zfcp_get_busid_by_adapter(adapter), + fsf_bit_error->link_failure_error_count, + fsf_bit_error->loss_of_sync_error_count, + fsf_bit_error->loss_of_signal_error_count, + fsf_bit_error->primitive_sequence_error_count, + fsf_bit_error->invalid_transmission_word_error_count, + fsf_bit_error->crc_error_count); + ZFCP_LOG_INFO("Additional bit error threshold data " + "(adapter %s, " + "primitive sequence event time-outs = %i, " + "elastic buffer overrun errors = %i, " + "advertised receive buffer-to-buffer credit = %i, " + "current receice buffer-to-buffer credit = %i, " + "advertised transmit buffer-to-buffer credit = %i, " + "current transmit buffer-to-buffer credit = %i)\n", + zfcp_get_busid_by_adapter(adapter), + fsf_bit_error->primitive_sequence_event_timeout_count, + fsf_bit_error->elastic_buffer_overrun_error_count, + fsf_bit_error->advertised_receive_b2b_credit, + fsf_bit_error->current_receive_b2b_credit, + fsf_bit_error->advertised_transmit_b2b_credit, + fsf_bit_error->current_transmit_b2b_credit); break; case FSF_STATUS_READ_LINK_DOWN: @@ -1427,7 +1444,8 @@ zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool, /* settings in QTCB */ fsf_req->qtcb->header.port_handle = port->handle; - fsf_req->qtcb->bottom.support.service_class = adapter->fc_service_class; + fsf_req->qtcb->bottom.support.service_class = + ZFCP_FC_SERVICE_CLASS_DEFAULT; fsf_req->qtcb->bottom.support.timeout = ct->timeout; fsf_req->data = (unsigned long) ct; @@ -1496,18 +1514,10 @@ zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *fsf_req) break; case FSF_SERVICE_CLASS_NOT_SUPPORTED: - if (adapter->fc_service_class <= 3) { - ZFCP_LOG_INFO("error: adapter %s does not support fc " - "class %d.\n", - zfcp_get_busid_by_port(port), - adapter->fc_service_class); - } else { - ZFCP_LOG_INFO("bug: The fibre channel class at the " - "adapter %s is invalid. " - "(debug info %d)\n", - zfcp_get_busid_by_port(port), - adapter->fc_service_class); - } + ZFCP_LOG_INFO("error: adapter %s does not support fc " + "class %d.\n", + zfcp_get_busid_by_port(port), + ZFCP_FC_SERVICE_CLASS_DEFAULT); /* stop operation for this adapter */ debug_text_exception(adapter->erp_dbf, 0, "fsf_s_class_nsup"); zfcp_erp_adapter_shutdown(adapter, 0); @@ -1730,7 +1740,8 @@ zfcp_fsf_send_els(struct zfcp_send_els *els) /* settings in QTCB */ fsf_req->qtcb->bottom.support.d_id = d_id; - fsf_req->qtcb->bottom.support.service_class = adapter->fc_service_class; + fsf_req->qtcb->bottom.support.service_class = + ZFCP_FC_SERVICE_CLASS_DEFAULT; fsf_req->qtcb->bottom.support.timeout = ZFCP_ELS_TIMEOUT; fsf_req->data = (unsigned long) els; @@ -1800,18 +1811,10 @@ static int zfcp_fsf_send_els_handler(struct zfcp_fsf_req *fsf_req) break; case FSF_SERVICE_CLASS_NOT_SUPPORTED: - if (adapter->fc_service_class <= 3) { - ZFCP_LOG_INFO("error: adapter %s does " - "not support fibrechannel class %d.\n", - zfcp_get_busid_by_adapter(adapter), - adapter->fc_service_class); - } else { - ZFCP_LOG_INFO("bug: The fibrechannel class at " - "adapter %s is invalid. " - "(debug info %d)\n", - zfcp_get_busid_by_adapter(adapter), - adapter->fc_service_class); - } + ZFCP_LOG_INFO("error: adapter %s does not support fc " + "class %d.\n", + zfcp_get_busid_by_adapter(adapter), + ZFCP_FC_SERVICE_CLASS_DEFAULT); /* stop operation for this adapter */ debug_text_exception(adapter->erp_dbf, 0, "fsf_s_class_nsup"); zfcp_erp_adapter_shutdown(adapter, 0); @@ -1940,14 +1943,6 @@ skip_fsfstatus: return retval; } -/* - * function: - * - * purpose: - * - * returns: address of initiated FSF request - * NULL - request could not be initiated - */ int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) { @@ -2565,8 +2560,7 @@ zfcp_fsf_open_port_handler(struct zfcp_fsf_req *fsf_req) if (!atomic_test_mask(ZFCP_STATUS_PORT_NO_WWPN, &port->status)) { if (fsf_req->qtcb->bottom.support.els1_length < - ((((unsigned long) &plogi->serv_param.wwpn) - - ((unsigned long) plogi)) + sizeof (u64))) { + sizeof (struct fsf_plogi)) { ZFCP_LOG_INFO( "warning: insufficient length of " "PLOGI payload (%i)\n", @@ -2585,8 +2579,10 @@ zfcp_fsf_open_port_handler(struct zfcp_fsf_req *fsf_req) atomic_clear_mask( ZFCP_STATUS_PORT_DID_DID, &port->status); - } else + } else { port->wwnn = plogi->serv_param.wwnn; + zfcp_plogi_evaluate(port, plogi); + } } } break; @@ -2993,8 +2989,8 @@ zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action) erp_action->fsf_req->qtcb->bottom.support.fcp_lun = erp_action->unit->fcp_lun; if (!(erp_action->adapter->connection_features & FSF_FEATURE_NPIV_MODE)) - erp_action->fsf_req->qtcb->bottom.support.option = - FSF_OPEN_LUN_SUPPRESS_BOXING; + erp_action->fsf_req->qtcb->bottom.support.option = + FSF_OPEN_LUN_SUPPRESS_BOXING; atomic_set_mask(ZFCP_STATUS_COMMON_OPENING, &erp_action->unit->status); erp_action->fsf_req->data = (unsigned long) erp_action->unit; erp_action->fsf_req->erp_action = erp_action; @@ -3569,7 +3565,7 @@ zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *adapter, } /* set FC service class in QTCB (3 per default) */ - fsf_req->qtcb->bottom.io.service_class = adapter->fc_service_class; + fsf_req->qtcb->bottom.io.service_class = ZFCP_FC_SERVICE_CLASS_DEFAULT; /* set FCP_LUN in FCP_CMND IU in QTCB */ fcp_cmnd_iu->fcp_lun = unit->fcp_lun; @@ -3667,18 +3663,6 @@ zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *adapter, return retval; } -/* - * function: zfcp_fsf_send_fcp_command_task_management - * - * purpose: - * - * returns: - * - * FIXME(design): should be watched by a timeout!!! - * FIXME(design) shouldn't this be modified to return an int - * also...don't know how though - * - */ struct zfcp_fsf_req * zfcp_fsf_send_fcp_command_task_management(struct zfcp_adapter *adapter, struct zfcp_unit *unit, @@ -3720,7 +3704,7 @@ zfcp_fsf_send_fcp_command_task_management(struct zfcp_adapter *adapter, fsf_req->qtcb->header.lun_handle = unit->handle; fsf_req->qtcb->header.port_handle = unit->port->handle; fsf_req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; - fsf_req->qtcb->bottom.io.service_class = adapter->fc_service_class; + fsf_req->qtcb->bottom.io.service_class = ZFCP_FC_SERVICE_CLASS_DEFAULT; fsf_req->qtcb->bottom.io.fcp_cmnd_length = sizeof (struct fcp_cmnd_iu) + sizeof (fcp_dl_t); @@ -3843,18 +3827,10 @@ zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *fsf_req) break; case FSF_SERVICE_CLASS_NOT_SUPPORTED: - if (fsf_req->adapter->fc_service_class <= 3) { - ZFCP_LOG_NORMAL("error: The adapter %s does " - "not support fibrechannel class %d.\n", - zfcp_get_busid_by_unit(unit), - fsf_req->adapter->fc_service_class); - } else { - ZFCP_LOG_NORMAL("bug: The fibrechannel class at " - "adapter %s is invalid. " - "(debug info %d)\n", - zfcp_get_busid_by_unit(unit), - fsf_req->adapter->fc_service_class); - } + ZFCP_LOG_INFO("error: adapter %s does not support fc " + "class %d.\n", + zfcp_get_busid_by_unit(unit), + ZFCP_FC_SERVICE_CLASS_DEFAULT); /* stop operation for this adapter */ debug_text_exception(fsf_req->adapter->erp_dbf, 0, "fsf_s_class_nsup"); diff --git a/drivers/s390/scsi/zfcp_fsf.h b/drivers/s390/scsi/zfcp_fsf.h index e734415cae6..71186618947 100644 --- a/drivers/s390/scsi/zfcp_fsf.h +++ b/drivers/s390/scsi/zfcp_fsf.h @@ -1,19 +1,8 @@ /* - * - * linux/drivers/s390/scsi/zfcp_fsf.h - * - * FCP adapter driver for IBM eServer zSeries - * - * (C) Copyright IBM Corp. 2002, 2004 + * This file is part of the zfcp device driver for + * FCP adapters for IBM System z9 and zSeries. * - * Author(s): Martin Peschke <mpeschke@de.ibm.com> - * Raimund Schroeder <raimund.schroeder@de.ibm.com> - * Aron Zeh - * Wolfgang Taphorn - * Stefan Bader <stefan.bader@de.ibm.com> - * Heiko Carstens <heiko.carstens@de.ibm.com> - * Andreas Herrmann <aherrman@de.ibm.com> - * Volker Sameske <sameske@de.ibm.com> + * (C) Copyright IBM Corp. 2002, 2006 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -33,8 +22,7 @@ #ifndef FSF_H #define FSF_H -#define FSF_QTCB_VERSION1 0x00000001 -#define FSF_QTCB_CURRENT_VERSION FSF_QTCB_VERSION1 +#define FSF_QTCB_CURRENT_VERSION 0x00000001 /* FSF commands */ #define FSF_QTCB_FCP_CMND 0x00000001 @@ -64,7 +52,7 @@ #define FSF_CFDC_OPTION_FULL_ACCESS 0x00000002 #define FSF_CFDC_OPTION_RESTRICTED_ACCESS 0x00000004 -/* FSF protocol stati */ +/* FSF protocol states */ #define FSF_PROT_GOOD 0x00000001 #define FSF_PROT_QTCB_VERSION_ERROR 0x00000010 #define FSF_PROT_SEQ_NUMB_ERROR 0x00000020 @@ -76,7 +64,7 @@ #define FSF_PROT_REEST_QUEUE 0x00000800 #define FSF_PROT_ERROR_STATE 0x01000000 -/* FSF stati */ +/* FSF states */ #define FSF_GOOD 0x00000000 #define FSF_PORT_ALREADY_OPEN 0x00000001 #define FSF_LUN_ALREADY_OPEN 0x00000002 @@ -269,20 +257,6 @@ #define FSF_UNIT_ACCESS_EXCLUSIVE 0x02000000 #define FSF_UNIT_ACCESS_OUTBOUND_TRANSFER 0x10000000 -struct fsf_queue_designator; -struct fsf_status_read_buffer; -struct fsf_port_closed_payload; -struct fsf_bit_error_payload; -union fsf_prot_status_qual; -struct fsf_qual_version_error; -struct fsf_qual_sequence_error; -struct fsf_qtcb_prefix; -struct fsf_qtcb_header; -struct fsf_qtcb_bottom_config; -struct fsf_qtcb_bottom_support; -struct fsf_qtcb_bottom_io; -union fsf_qtcb_bottom; - struct fsf_queue_designator { u8 cssid; u8 chpid; diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c index 1c3275163c9..345a191926a 100644 --- a/drivers/s390/scsi/zfcp_qdio.c +++ b/drivers/s390/scsi/zfcp_qdio.c @@ -1,18 +1,8 @@ /* - * linux/drivers/s390/scsi/zfcp_qdio.c + * This file is part of the zfcp device driver for + * FCP adapters for IBM System z9 and zSeries. * - * FCP adapter driver for IBM eServer zSeries - * - * QDIO related routines - * - * (C) Copyright IBM Corp. 2002, 2004 - * - * Authors: - * Martin Peschke <mpeschke@de.ibm.com> - * Raimund Schroeder <raimund.schroeder@de.ibm.com> - * Wolfgang Taphorn - * Heiko Carstens <heiko.carstens@de.ibm.com> - * Andreas Herrmann <aherrman@de.ibm.com> + * (C) Copyright IBM Corp. 2002, 2006 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -178,7 +168,8 @@ zfcp_qdio_allocate(struct zfcp_adapter *adapter) init_data->cdev = adapter->ccw_device; init_data->q_format = QDIO_SCSI_QFMT; - memcpy(init_data->adapter_name, &adapter->name, 8); + memcpy(init_data->adapter_name, zfcp_get_busid_by_adapter(adapter), 8); + ASCEBC(init_data->adapter_name, 8); init_data->qib_param_field_format = 0; init_data->qib_param_field = NULL; init_data->input_slib_elements = NULL; diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index 9e6d07d7b3c..46e14f22ec1 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -1,18 +1,8 @@ /* - * - * linux/drivers/s390/scsi/zfcp_scsi.c - * - * FCP adapter driver for IBM eServer zSeries - * - * (C) Copyright IBM Corp. 2002, 2004 + * This file is part of the zfcp device driver for + * FCP adapters for IBM System z9 and zSeries. * - * Author(s): Martin Peschke <mpeschke@de.ibm.com> - * Raimund Schroeder <raimund.schroeder@de.ibm.com> - * Aron Zeh - * Wolfgang Taphorn - * Stefan Bader <stefan.bader@de.ibm.com> - * Heiko Carstens <heiko.carstens@de.ibm.com> - * Andreas Herrmann <aherrman@de.ibm.com> + * (C) Copyright IBM Corp. 2002, 2006 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -45,8 +35,8 @@ static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *); static int zfcp_task_management_function(struct zfcp_unit *, u8, struct scsi_cmnd *); -static struct zfcp_unit *zfcp_unit_lookup(struct zfcp_adapter *, int, scsi_id_t, - scsi_lun_t); +static struct zfcp_unit *zfcp_unit_lookup(struct zfcp_adapter *, int, + unsigned int, unsigned int); static struct device_attribute *zfcp_sysfs_sdev_attrs[]; @@ -161,14 +151,6 @@ set_driver_byte(u32 * result, char status) set_byte(result, status, 3); } -/* - * function: zfcp_scsi_slave_alloc - * - * purpose: - * - * returns: - */ - static int zfcp_scsi_slave_alloc(struct scsi_device *sdp) { @@ -195,14 +177,6 @@ zfcp_scsi_slave_alloc(struct scsi_device *sdp) return retval; } -/* - * function: zfcp_scsi_slave_destroy - * - * purpose: - * - * returns: - */ - static void zfcp_scsi_slave_destroy(struct scsi_device *sdpnt) { @@ -374,18 +348,9 @@ zfcp_scsi_queuecommand(struct scsi_cmnd *scpnt, return zfcp_scsi_command_async(adapter, unit, scpnt, NULL); } -/* - * function: zfcp_unit_lookup - * - * purpose: - * - * returns: - * - * context: - */ static struct zfcp_unit * -zfcp_unit_lookup(struct zfcp_adapter *adapter, int channel, scsi_id_t id, - scsi_lun_t lun) +zfcp_unit_lookup(struct zfcp_adapter *adapter, int channel, unsigned int id, + unsigned int lun) { struct zfcp_port *port; struct zfcp_unit *unit, *retval = NULL; @@ -491,13 +456,6 @@ zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt) return retval; } -/* - * function: zfcp_scsi_eh_device_reset_handler - * - * purpose: - * - * returns: - */ int zfcp_scsi_eh_device_reset_handler(struct scsi_cmnd *scpnt) { @@ -625,13 +583,6 @@ zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt) return SUCCESS; } -/* - * function: - * - * purpose: - * - * returns: - */ int zfcp_adapter_scsi_register(struct zfcp_adapter *adapter) { @@ -657,10 +608,6 @@ zfcp_adapter_scsi_register(struct zfcp_adapter *adapter) adapter->scsi_host->unique_id = unique_id++; /* FIXME */ adapter->scsi_host->max_cmd_len = ZFCP_MAX_SCSI_CMND_LENGTH; adapter->scsi_host->transportt = zfcp_transport_template; - /* - * Reverse mapping of the host number to avoid race condition - */ - adapter->scsi_host_no = adapter->scsi_host->host_no; /* * save a pointer to our own adapter data structure within @@ -678,13 +625,6 @@ zfcp_adapter_scsi_register(struct zfcp_adapter *adapter) return retval; } -/* - * function: - * - * purpose: - * - * returns: - */ void zfcp_adapter_scsi_unregister(struct zfcp_adapter *adapter) { @@ -703,7 +643,6 @@ zfcp_adapter_scsi_unregister(struct zfcp_adapter *adapter) scsi_remove_host(shost); scsi_host_put(shost); adapter->scsi_host = NULL; - adapter->scsi_host_no = 0; atomic_clear_mask(ZFCP_STATUS_ADAPTER_REGISTERED, &adapter->status); return; @@ -817,10 +756,9 @@ zfcp_get_fc_host_stats(struct Scsi_Host *shost) if (!fc_stats) return NULL; - data = kmalloc(sizeof(*data), GFP_KERNEL); + data = kzalloc(sizeof(*data), GFP_KERNEL); if (!data) return NULL; - memset(data, 0, sizeof(*data)); ret = zfcp_fsf_exchange_port_data(NULL, adapter, data); if (ret) { @@ -848,10 +786,9 @@ zfcp_reset_fc_host_stats(struct Scsi_Host *shost) int ret; adapter = (struct zfcp_adapter *)shost->hostdata[0]; - data = kmalloc(sizeof(*data), GFP_KERNEL); + data = kzalloc(sizeof(*data), GFP_KERNEL); if (!data) return; - memset(data, 0, sizeof(*data)); ret = zfcp_fsf_exchange_port_data(NULL, adapter, data); if (ret == 0) { @@ -863,11 +800,18 @@ zfcp_reset_fc_host_stats(struct Scsi_Host *shost) } } +static void zfcp_set_rport_dev_loss_tmo(struct fc_rport *rport, u32 timeout) +{ + rport->dev_loss_tmo = timeout; +} + struct fc_function_template zfcp_transport_functions = { .show_starget_port_id = 1, .show_starget_port_name = 1, .show_starget_node_name = 1, .show_rport_supported_classes = 1, + .show_rport_maxframe_size = 1, + .show_rport_dev_loss_tmo = 1, .show_host_node_name = 1, .show_host_port_name = 1, .show_host_permanent_port_name = 1, @@ -877,6 +821,7 @@ struct fc_function_template zfcp_transport_functions = { .show_host_serial_number = 1, .get_fc_host_stats = zfcp_get_fc_host_stats, .reset_fc_host_stats = zfcp_reset_fc_host_stats, + .set_rport_dev_loss_tmo = zfcp_set_rport_dev_loss_tmo, /* no functions registered for following dynamic attributes but directly set by LLDD */ .show_host_port_type = 1, diff --git a/drivers/s390/scsi/zfcp_sysfs_adapter.c b/drivers/s390/scsi/zfcp_sysfs_adapter.c index b29ac25e07f..705c6d4428f 100644 --- a/drivers/s390/scsi/zfcp_sysfs_adapter.c +++ b/drivers/s390/scsi/zfcp_sysfs_adapter.c @@ -1,16 +1,8 @@ /* - * linux/drivers/s390/scsi/zfcp_sysfs_adapter.c + * This file is part of the zfcp device driver for + * FCP adapters for IBM System z9 and zSeries. * - * FCP adapter driver for IBM eServer zSeries - * - * sysfs adapter related routines - * - * (C) Copyright IBM Corp. 2003, 2004 - * - * Authors: - * Martin Peschke <mpeschke@de.ibm.com> - * Heiko Carstens <heiko.carstens@de.ibm.com> - * Andreas Herrmann <aherrman@de.ibm.com> + * (C) Copyright IBM Corp. 2002, 2006 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by diff --git a/drivers/s390/scsi/zfcp_sysfs_driver.c b/drivers/s390/scsi/zfcp_sysfs_driver.c index 6622d55e0a4..005e62f8593 100644 --- a/drivers/s390/scsi/zfcp_sysfs_driver.c +++ b/drivers/s390/scsi/zfcp_sysfs_driver.c @@ -1,16 +1,8 @@ /* - * linux/drivers/s390/scsi/zfcp_sysfs_driver.c + * This file is part of the zfcp device driver for + * FCP adapters for IBM System z9 and zSeries. * - * FCP adapter driver for IBM eServer zSeries - * - * sysfs driver related routines - * - * (C) Copyright IBM Corp. 2003, 2004 - * - * Authors: - * Martin Peschke <mpeschke@de.ibm.com> - * Heiko Carstens <heiko.carstens@de.ibm.com> - * Andreas Herrmann <aherrman@de.ibm.com> + * (C) Copyright IBM Corp. 2002, 2006 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by diff --git a/drivers/s390/scsi/zfcp_sysfs_port.c b/drivers/s390/scsi/zfcp_sysfs_port.c index f401d42db21..1320c059143 100644 --- a/drivers/s390/scsi/zfcp_sysfs_port.c +++ b/drivers/s390/scsi/zfcp_sysfs_port.c @@ -1,17 +1,8 @@ /* - * linux/drivers/s390/scsi/zfcp_sysfs_port.c + * This file is part of the zfcp device driver for + * FCP adapters for IBM System z9 and zSeries. * - * FCP adapter driver for IBM eServer zSeries - * - * sysfs port related routines - * - * (C) Copyright IBM Corp. 2003, 2004 - * - * Authors: - * Martin Peschke <mpeschke@de.ibm.com> - * Heiko Carstens <heiko.carstens@de.ibm.com> - * Andreas Herrmann <aherrman@de.ibm.com> - * Volker Sameske <sameske@de.ibm.com> + * (C) Copyright IBM Corp. 2002, 2006 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by diff --git a/drivers/s390/scsi/zfcp_sysfs_unit.c b/drivers/s390/scsi/zfcp_sysfs_unit.c index ad5dfb889be..81a48417586 100644 --- a/drivers/s390/scsi/zfcp_sysfs_unit.c +++ b/drivers/s390/scsi/zfcp_sysfs_unit.c @@ -1,17 +1,8 @@ /* - * linux/drivers/s390/scsi/zfcp_sysfs_unit.c + * This file is part of the zfcp device driver for + * FCP adapters for IBM System z9 and zSeries. * - * FCP adapter driver for IBM eServer zSeries - * - * sysfs unit related routines - * - * (C) Copyright IBM Corp. 2003, 2004 - * - * Authors: - * Martin Peschke <mpeschke@de.ibm.com> - * Heiko Carstens <heiko.carstens@de.ibm.com> - * Andreas Herrmann <aherrman@de.ibm.com> - * Volker Sameske <sameske@de.ibm.com> + * (C) Copyright IBM Corp. 2002, 2006 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by diff --git a/drivers/s390/sysinfo.c b/drivers/s390/sysinfo.c index 66da840c931..d1c1e75bfd6 100644 --- a/drivers/s390/sysinfo.c +++ b/drivers/s390/sysinfo.c @@ -5,7 +5,6 @@ * Author(s): Ulrich Weigand (Ulrich.Weigand@de.ibm.com) */ -#include <linux/config.h> #include <linux/kernel.h> #include <linux/mm.h> #include <linux/proc_fs.h> |