diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-04 09:45:50 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-04 09:45:50 -0700 |
commit | ad0bf4eb91c2f9b93479b679e5472094ddb76da8 (patch) | |
tree | 4025ab22e3ea949259a5078d06cf7a75afbb8ed3 /drivers | |
parent | 5364abc57993b3bf60c41923cb98a8f1a594e749 (diff) | |
parent | 1058c163dc31b3335c9cf7c4fa42ccf87be73017 (diff) |
Merge tag 's390-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Vasily Gorbik:
- Update maintainers. Niklas Schnelle takes over zpci and Vineeth
Vijayan common io code.
- Extend cpuinfo to include topology information.
- Add new extended counters for IBM z15 and sampling buffer allocation
rework in perf code.
- Add control over zeroing out memory during system restart.
- CCA protected key block version 2 support and other
fixes/improvements in crypto code.
- Convert to new fallthrough; annotations.
- Replace zero-length arrays with flexible-arrays.
- QDIO debugfs and other small improvements.
- Drop 2-level paging support optimization for compat tasks. Varios mm
cleanups.
- Remove broken and unused hibernate / power management support.
- Remove fake numa support which does not bring any benefits.
- Exclude offline CPUs from CPU topology masks to be more consistent
with other architectures.
- Prevent last branching instruction address leaking to userspace.
- Other small various fixes and improvements all over the code.
* tag 's390-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (57 commits)
s390/mm: cleanup init_new_context() callback
s390/mm: cleanup virtual memory constants usage
s390/mm: remove page table downgrade support
s390/qdio: set qdio_irq->cdev at allocation time
s390/qdio: remove unused function declarations
s390/ccwgroup: remove pm support
s390/ap: remove power management code from ap bus and drivers
s390/zcrypt: use kvmalloc instead of kmalloc for 256k alloc
s390/mm: cleanup arch_get_unmapped_area() and friends
s390/ism: remove pm support
s390/cio: use fallthrough;
s390/vfio: use fallthrough;
s390/zcrypt: use fallthrough;
s390: use fallthrough;
s390/cpum_sf: Fix wrong page count in error message
s390/diag: fix display of diagnose call statistics
s390/ap: Remove ap device suspend and resume callbacks
s390/pci: Improve handling of unset UID
s390/pci: Fix zpci_alloc_domain() over allocation
s390/qdio: pass ISC as parameter to chsc_sadc()
...
Diffstat (limited to 'drivers')
39 files changed, 247 insertions, 576 deletions
diff --git a/drivers/pci/hotplug/s390_pci_hpc.c b/drivers/pci/hotplug/s390_pci_hpc.c index 30ee72268790..39295d88f670 100644 --- a/drivers/pci/hotplug/s390_pci_hpc.c +++ b/drivers/pci/hotplug/s390_pci_hpc.c @@ -19,7 +19,6 @@ #include <asm/sclp.h> #define SLOT_NAME_SIZE 10 -static LIST_HEAD(s390_hotplug_slot_list); static int zpci_fn_configured(enum zpci_state state) { @@ -27,97 +26,86 @@ static int zpci_fn_configured(enum zpci_state state) state == ZPCI_FN_STATE_ONLINE; } -/* - * struct slot - slot information for each *physical* slot - */ -struct slot { - struct list_head slot_list; - struct hotplug_slot hotplug_slot; - struct zpci_dev *zdev; -}; - -static inline struct slot *to_slot(struct hotplug_slot *hotplug_slot) +static inline int zdev_configure(struct zpci_dev *zdev) { - return container_of(hotplug_slot, struct slot, hotplug_slot); -} - -static inline int slot_configure(struct slot *slot) -{ - int ret = sclp_pci_configure(slot->zdev->fid); + int ret = sclp_pci_configure(zdev->fid); - zpci_dbg(3, "conf fid:%x, rc:%d\n", slot->zdev->fid, ret); + zpci_dbg(3, "conf fid:%x, rc:%d\n", zdev->fid, ret); if (!ret) - slot->zdev->state = ZPCI_FN_STATE_CONFIGURED; + zdev->state = ZPCI_FN_STATE_CONFIGURED; return ret; } -static inline int slot_deconfigure(struct slot *slot) +static inline int zdev_deconfigure(struct zpci_dev *zdev) { - int ret = sclp_pci_deconfigure(slot->zdev->fid); + int ret = sclp_pci_deconfigure(zdev->fid); - zpci_dbg(3, "deconf fid:%x, rc:%d\n", slot->zdev->fid, ret); + zpci_dbg(3, "deconf fid:%x, rc:%d\n", zdev->fid, ret); if (!ret) - slot->zdev->state = ZPCI_FN_STATE_STANDBY; + zdev->state = ZPCI_FN_STATE_STANDBY; return ret; } static int enable_slot(struct hotplug_slot *hotplug_slot) { - struct slot *slot = to_slot(hotplug_slot); + struct zpci_dev *zdev = container_of(hotplug_slot, struct zpci_dev, + hotplug_slot); int rc; - if (slot->zdev->state != ZPCI_FN_STATE_STANDBY) + if (zdev->state != ZPCI_FN_STATE_STANDBY) return -EIO; - rc = slot_configure(slot); + rc = zdev_configure(zdev); if (rc) return rc; - rc = zpci_enable_device(slot->zdev); + rc = zpci_enable_device(zdev); if (rc) goto out_deconfigure; - pci_scan_slot(slot->zdev->bus, ZPCI_DEVFN); + pci_scan_slot(zdev->bus, ZPCI_DEVFN); pci_lock_rescan_remove(); - pci_bus_add_devices(slot->zdev->bus); + pci_bus_add_devices(zdev->bus); pci_unlock_rescan_remove(); return rc; out_deconfigure: - slot_deconfigure(slot); + zdev_deconfigure(zdev); return rc; } static int disable_slot(struct hotplug_slot *hotplug_slot) { - struct slot *slot = to_slot(hotplug_slot); + struct zpci_dev *zdev = container_of(hotplug_slot, struct zpci_dev, + hotplug_slot); struct pci_dev *pdev; int rc; - if (!zpci_fn_configured(slot->zdev->state)) + if (!zpci_fn_configured(zdev->state)) return -EIO; - pdev = pci_get_slot(slot->zdev->bus, ZPCI_DEVFN); + pdev = pci_get_slot(zdev->bus, ZPCI_DEVFN); if (pdev) { pci_stop_and_remove_bus_device_locked(pdev); pci_dev_put(pdev); } - rc = zpci_disable_device(slot->zdev); + rc = zpci_disable_device(zdev); if (rc) return rc; - return slot_deconfigure(slot); + return zdev_deconfigure(zdev); } static int get_power_status(struct hotplug_slot *hotplug_slot, u8 *value) { - struct slot *slot = to_slot(hotplug_slot); + struct zpci_dev *zdev = container_of(hotplug_slot, struct zpci_dev, + hotplug_slot); - switch (slot->zdev->state) { + switch (zdev->state) { case ZPCI_FN_STATE_STANDBY: *value = 0; break; @@ -145,44 +133,15 @@ static const struct hotplug_slot_ops s390_hotplug_slot_ops = { int zpci_init_slot(struct zpci_dev *zdev) { char name[SLOT_NAME_SIZE]; - struct slot *slot; - int rc; - if (!zdev) - return 0; - - slot = kzalloc(sizeof(*slot), GFP_KERNEL); - if (!slot) - goto error; - - slot->zdev = zdev; - slot->hotplug_slot.ops = &s390_hotplug_slot_ops; + zdev->hotplug_slot.ops = &s390_hotplug_slot_ops; snprintf(name, SLOT_NAME_SIZE, "%08x", zdev->fid); - rc = pci_hp_register(&slot->hotplug_slot, zdev->bus, - ZPCI_DEVFN, name); - if (rc) - goto error_reg; - - list_add(&slot->slot_list, &s390_hotplug_slot_list); - return 0; - -error_reg: - kfree(slot); -error: - return -ENOMEM; + return pci_hp_register(&zdev->hotplug_slot, zdev->bus, + ZPCI_DEVFN, name); } void zpci_exit_slot(struct zpci_dev *zdev) { - struct slot *slot, *next; - - list_for_each_entry_safe(slot, next, &s390_hotplug_slot_list, - slot_list) { - if (slot->zdev != zdev) - continue; - list_del(&slot->slot_list); - pci_hp_deregister(&slot->hotplug_slot); - kfree(slot); - } + pci_hp_deregister(&zdev->hotplug_slot); } diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c index 8d4971645cf1..facb588d09e4 100644 --- a/drivers/s390/block/dasd_diag.c +++ b/drivers/s390/block/dasd_diag.c @@ -58,7 +58,7 @@ struct dasd_diag_private { struct dasd_diag_req { unsigned int block_count; - struct dasd_diag_bio bio[0]; + struct dasd_diag_bio bio[]; }; static const u8 DASD_DIAG_CMS1[] = { 0xc3, 0xd4, 0xe2, 0xf1 };/* EBCDIC CMS1 */ diff --git a/drivers/s390/block/dasd_eckd.h b/drivers/s390/block/dasd_eckd.h index 6943508d0f1d..ca24a78a256e 100644 --- a/drivers/s390/block/dasd_eckd.h +++ b/drivers/s390/block/dasd_eckd.h @@ -220,7 +220,7 @@ struct LRE_eckd_data { __u8 imbedded_count; __u8 extended_operation; __u16 extended_parameter_length; - __u8 extended_parameter[0]; + __u8 extended_parameter[]; } __attribute__ ((packed)); /* Prefix data for format 0x00 and 0x01 */ diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c index e7cf0a1d4f71..92757f9bd010 100644 --- a/drivers/s390/char/con3215.c +++ b/drivers/s390/char/con3215.c @@ -398,7 +398,7 @@ static void raw3215_irq(struct ccw_device *cdev, unsigned long intparm, } if (dstat == 0x08) break; - /* else, fall through */ + fallthrough; case 0x04: /* Device end interrupt. */ if ((raw = req->info) == NULL) diff --git a/drivers/s390/char/hmcdrv_ftp.c b/drivers/s390/char/hmcdrv_ftp.c index 0e70397d6e04..37ee8f698c3b 100644 --- a/drivers/s390/char/hmcdrv_ftp.c +++ b/drivers/s390/char/hmcdrv_ftp.c @@ -137,7 +137,7 @@ static int hmcdrv_ftp_parse(char *cmd, struct hmcdrv_ftp_cmdspec *ftp) while ((*cmd != '\0') && !iscntrl(*cmd)) ++cmd; ftp->fname = start; - /* fall through */ + fallthrough; default: *cmd = '\0'; break; diff --git a/drivers/s390/char/raw3270.h b/drivers/s390/char/raw3270.h index 3afaa35f7351..08f36e973b43 100644 --- a/drivers/s390/char/raw3270.h +++ b/drivers/s390/char/raw3270.h @@ -211,7 +211,7 @@ struct string struct list_head update; unsigned long size; unsigned long len; - char string[0]; + char string[]; } __attribute__ ((aligned(8))); static inline struct string * diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c index 37d42de06079..a864b21af602 100644 --- a/drivers/s390/char/sclp_cmd.c +++ b/drivers/s390/char/sclp_cmd.c @@ -406,7 +406,7 @@ static void __init add_memory_merged(u16 rn) if (!size) goto skip_add; for (addr = start; addr < start + size; addr += block_size) - add_memory(numa_pfn_to_nid(PFN_DOWN(addr)), addr, block_size); + add_memory(0, addr, block_size); skip_add: first_rn = rn; num = 1; diff --git a/drivers/s390/char/sclp_pci.c b/drivers/s390/char/sclp_pci.c index 995e9196852e..a3e5a5fb0c1e 100644 --- a/drivers/s390/char/sclp_pci.c +++ b/drivers/s390/char/sclp_pci.c @@ -39,7 +39,7 @@ struct err_notify_evbuf { u8 atype; u32 fh; u32 fid; - u8 data[0]; + u8 data[]; } __packed; struct err_notify_sccb { diff --git a/drivers/s390/char/sclp_sdias.c b/drivers/s390/char/sclp_sdias.c index 13f97fd73aca..644b61013679 100644 --- a/drivers/s390/char/sclp_sdias.c +++ b/drivers/s390/char/sclp_sdias.c @@ -214,7 +214,7 @@ int sclp_sdias_copy(void *dest, int start_blk, int nr_blks) break; case SDIAS_EVSTATE_NO_DATA: TRACE("no data\n"); - /* fall through */ + fallthrough; default: pr_err("Error from SCLP while copying hsa. Event status = %x\n", sdias_evbuf.event_status); diff --git a/drivers/s390/char/tape_core.c b/drivers/s390/char/tape_core.c index 3e0b2f63a9d2..380e6a67719c 100644 --- a/drivers/s390/char/tape_core.c +++ b/drivers/s390/char/tape_core.c @@ -677,7 +677,7 @@ tape_generic_remove(struct ccw_device *cdev) switch (device->tape_state) { case TS_INIT: tape_state_set(device, TS_NOT_OPER); - /* fallthrough */ + fallthrough; case TS_NOT_OPER: /* * Nothing to do. @@ -950,7 +950,7 @@ __tape_start_request(struct tape_device *device, struct tape_request *request) break; if (device->tape_state == TS_UNUSED) break; - /* fallthrough */ + fallthrough; default: if (device->tape_state == TS_BLKUSE) break; @@ -1118,7 +1118,7 @@ __tape_do_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb) case -ETIMEDOUT: DBF_LH(1, "(%08x): Request timed out\n", device->cdev_id); - /* fallthrough */ + fallthrough; case -EIO: __tape_end_request(device, request, -EIO); break; diff --git a/drivers/s390/cio/airq.c b/drivers/s390/cio/airq.c index 427b2e24a8ce..cb466ed7eb5e 100644 --- a/drivers/s390/cio/airq.c +++ b/drivers/s390/cio/airq.c @@ -105,16 +105,12 @@ static irqreturn_t do_airq_interrupt(int irq, void *dummy) return IRQ_HANDLED; } -static struct irqaction airq_interrupt = { - .name = "AIO", - .handler = do_airq_interrupt, -}; - void __init init_airq_interrupts(void) { irq_set_chip_and_handler(THIN_INTERRUPT, &dummy_irq_chip, handle_percpu_irq); - setup_irq(THIN_INTERRUPT, &airq_interrupt); + if (request_irq(THIN_INTERRUPT, do_airq_interrupt, 0, "AIO", NULL)) + panic("Failed to register AIO interrupt\n"); } static inline unsigned long iv_size(unsigned long bits) diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c index b42a93736668..483a9ecfcbb1 100644 --- a/drivers/s390/cio/ccwgroup.c +++ b/drivers/s390/cio/ccwgroup.c @@ -485,79 +485,10 @@ static void ccwgroup_shutdown(struct device *dev) gdrv->shutdown(gdev); } -static int ccwgroup_pm_prepare(struct device *dev) -{ - struct ccwgroup_device *gdev = to_ccwgroupdev(dev); - struct ccwgroup_driver *gdrv = to_ccwgroupdrv(gdev->dev.driver); - - /* Fail while device is being set online/offline. */ - if (atomic_read(&gdev->onoff)) - return -EAGAIN; - - if (!gdev->dev.driver || gdev->state != CCWGROUP_ONLINE) - return 0; - - return gdrv->prepare ? gdrv->prepare(gdev) : 0; -} - -static void ccwgroup_pm_complete(struct device *dev) -{ - struct ccwgroup_device *gdev = to_ccwgroupdev(dev); - struct ccwgroup_driver *gdrv = to_ccwgroupdrv(dev->driver); - - if (!gdev->dev.driver || gdev->state != CCWGROUP_ONLINE) - return; - - if (gdrv->complete) - gdrv->complete(gdev); -} - -static int ccwgroup_pm_freeze(struct device *dev) -{ - struct ccwgroup_device *gdev = to_ccwgroupdev(dev); - struct ccwgroup_driver *gdrv = to_ccwgroupdrv(gdev->dev.driver); - - if (!gdev->dev.driver || gdev->state != CCWGROUP_ONLINE) - return 0; - - return gdrv->freeze ? gdrv->freeze(gdev) : 0; -} - -static int ccwgroup_pm_thaw(struct device *dev) -{ - struct ccwgroup_device *gdev = to_ccwgroupdev(dev); - struct ccwgroup_driver *gdrv = to_ccwgroupdrv(gdev->dev.driver); - - if (!gdev->dev.driver || gdev->state != CCWGROUP_ONLINE) - return 0; - - return gdrv->thaw ? gdrv->thaw(gdev) : 0; -} - -static int ccwgroup_pm_restore(struct device *dev) -{ - struct ccwgroup_device *gdev = to_ccwgroupdev(dev); - struct ccwgroup_driver *gdrv = to_ccwgroupdrv(gdev->dev.driver); - - if (!gdev->dev.driver || gdev->state != CCWGROUP_ONLINE) - return 0; - - return gdrv->restore ? gdrv->restore(gdev) : 0; -} - -static const struct dev_pm_ops ccwgroup_pm_ops = { - .prepare = ccwgroup_pm_prepare, - .complete = ccwgroup_pm_complete, - .freeze = ccwgroup_pm_freeze, - .thaw = ccwgroup_pm_thaw, - .restore = ccwgroup_pm_restore, -}; - static struct bus_type ccwgroup_bus_type = { .name = "ccwgroup", .remove = ccwgroup_remove, .shutdown = ccwgroup_shutdown, - .pm = &ccwgroup_pm_ops, }; bool dev_is_ccwgroup(struct device *dev) diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index 6392a1b95b02..1ca73c2e5a8f 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -180,11 +180,12 @@ EXPORT_SYMBOL_GPL(chsc_ssqd); * @scssc: request and response block for SADC * @summary_indicator_addr: summary indicator address * @subchannel_indicator_addr: subchannel indicator address + * @isc: Interruption Subclass for this subchannel * * Returns 0 on success. */ int chsc_sadc(struct subchannel_id schid, struct chsc_scssc_area *scssc, - u64 summary_indicator_addr, u64 subchannel_indicator_addr) + u64 summary_indicator_addr, u64 subchannel_indicator_addr, u8 isc) { memset(scssc, 0, sizeof(*scssc)); scssc->request.length = 0x0fe0; @@ -196,7 +197,7 @@ int chsc_sadc(struct subchannel_id schid, struct chsc_scssc_area *scssc, scssc->ks = PAGE_DEFAULT_KEY >> 4; scssc->kc = PAGE_DEFAULT_KEY >> 4; - scssc->isc = QDIO_AIRQ_ISC; + scssc->isc = isc; scssc->schid = schid; /* enable the time delay disablement facility */ diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h index e57d68e325a3..34de6d77442c 100644 --- a/drivers/s390/cio/chsc.h +++ b/drivers/s390/cio/chsc.h @@ -163,7 +163,8 @@ void chsc_chp_offline(struct chp_id chpid); int chsc_get_channel_measurement_chars(struct channel_path *chp); int chsc_ssqd(struct subchannel_id schid, struct chsc_ssqd_area *ssqd); int chsc_sadc(struct subchannel_id schid, struct chsc_scssc_area *scssc, - u64 summary_indicator_addr, u64 subchannel_indicator_addr); + u64 summary_indicator_addr, u64 subchannel_indicator_addr, + u8 isc); int chsc_sgib(u32 origin); int chsc_error_from_response(int response); diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index 18f5458f90e8..6d716db2a46a 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -563,16 +563,12 @@ static irqreturn_t do_cio_interrupt(int irq, void *dummy) return IRQ_HANDLED; } -static struct irqaction io_interrupt = { - .name = "I/O", - .handler = do_cio_interrupt, -}; - void __init init_cio_interrupts(void) { irq_set_chip_and_handler(IO_INTERRUPT, &dummy_irq_chip, handle_percpu_irq); - setup_irq(IO_INTERRUPT, &io_interrupt); + if (request_irq(IO_INTERRUPT, do_cio_interrupt, 0, "I/O", NULL)) + panic("Failed to register I/O interrupt\n"); } #ifdef CONFIG_CCW_CONSOLE diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index 0c6245fc7706..50007cb9be5b 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -1262,7 +1262,7 @@ static int recovery_check(struct device *dev, void *data) sch = to_subchannel(cdev->dev.parent); if ((sch->schib.pmcw.pam & sch->opm) == sch->vpm) break; - /* fall through */ + fallthrough; case DEV_STATE_DISCONNECTED: CIO_MSG_EVENT(3, "recovery: trigger 0.%x.%04x\n", cdev->private->dev_id.ssid, @@ -2091,7 +2091,7 @@ static void ccw_device_todo(struct work_struct *work) case CDEV_TODO_UNREG_EVAL: if (!sch_is_pseudo_sch(sch)) css_schedule_eval(sch->schid); - /* fall-through */ + fallthrough; case CDEV_TODO_UNREG: if (sch_is_pseudo_sch(sch)) ccw_device_unregister(cdev); diff --git a/drivers/s390/cio/idset.c b/drivers/s390/cio/idset.c index 835de44dbbcc..77d0ea7b381b 100644 --- a/drivers/s390/cio/idset.c +++ b/drivers/s390/cio/idset.c @@ -13,7 +13,7 @@ struct idset { int num_ssid; int num_id; - unsigned long bitmap[0]; + unsigned long bitmap[]; }; static inline unsigned long bitmap_size(int num_ssid, int num_id) diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h index f72f961cc78f..b0beafc43d37 100644 --- a/drivers/s390/cio/qdio.h +++ b/drivers/s390/cio/qdio.h @@ -250,7 +250,6 @@ struct qdio_q { /* upper-layer program handler */ qdio_handler_t (*handler); - struct dentry *debugfs_q; struct qdio_irq *irq_ptr; struct sl *sl; /* @@ -266,7 +265,6 @@ struct qdio_irq { struct ccw_device *cdev; struct list_head entry; /* list of thinint devices */ struct dentry *debugfs_dev; - struct dentry *debugfs_perf; unsigned long int_parm; struct subchannel_id schid; @@ -391,12 +389,9 @@ void qdio_setup_ssqd_info(struct qdio_irq *irq_ptr); int qdio_setup_get_ssqd(struct qdio_irq *irq_ptr, struct subchannel_id *schid, struct qdio_ssqd_desc *data); -int qdio_setup_irq(struct qdio_initialize *init_data); -void qdio_print_subchannel_info(struct qdio_irq *irq_ptr, - struct ccw_device *cdev); +int qdio_setup_irq(struct qdio_irq *irq_ptr, struct qdio_initialize *init_data); +void qdio_print_subchannel_info(struct qdio_irq *irq_ptr); void qdio_release_memory(struct qdio_irq *irq_ptr); -int qdio_setup_create_sysfs(struct ccw_device *cdev); -void qdio_setup_destroy_sysfs(struct ccw_device *cdev); int qdio_setup_init(void); void qdio_setup_exit(void); int qdio_enable_async_operation(struct qdio_output_q *q); diff --git a/drivers/s390/cio/qdio_debug.c b/drivers/s390/cio/qdio_debug.c index 00244607c8c0..5a3d9ee90a7f 100644 --- a/drivers/s390/cio/qdio_debug.c +++ b/drivers/s390/cio/qdio_debug.c @@ -81,7 +81,7 @@ int qdio_allocate_dbf(struct qdio_initialize *init_data, /* allocate trace view for the interface */ snprintf(text, QDIO_DBF_NAME_LEN, "qdio_%s", - dev_name(&init_data->cdev->dev)); + dev_name(&irq_ptr->cdev->dev)); irq_ptr->debug_area = qdio_get_dbf_entry(text); if (irq_ptr->debug_area) DBF_DEV_EVENT(DBF_ERR, irq_ptr, "dbf reused"); @@ -190,6 +190,23 @@ static int qstat_show(struct seq_file *m, void *v) DEFINE_SHOW_ATTRIBUTE(qstat); +static int ssqd_show(struct seq_file *m, void *v) +{ + struct ccw_device *cdev = m->private; + struct qdio_ssqd_desc ssqd; + int rc; + + rc = qdio_get_ssqd_desc(cdev, &ssqd); + if (rc) + return rc; + + seq_hex_dump(m, "", DUMP_PREFIX_NONE, 16, 4, &ssqd, sizeof(ssqd), + false); + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(ssqd); + static char *qperf_names[] = { "Assumed adapter interrupts", "QDIO interrupts", @@ -284,53 +301,37 @@ static const struct file_operations debugfs_perf_fops = { .release = single_release, }; -static void setup_debugfs_entry(struct qdio_q *q) +static void setup_debugfs_entry(struct dentry *parent, struct qdio_q *q) { char name[QDIO_DEBUGFS_NAME_LEN]; snprintf(name, QDIO_DEBUGFS_NAME_LEN, "%s_%d", q->is_input_q ? "input" : "output", q->nr); - q->debugfs_q = debugfs_create_file(name, 0444, - q->irq_ptr->debugfs_dev, q, &qstat_fops); - if (IS_ERR(q->debugfs_q)) - q->debugfs_q = NULL; + debugfs_create_file(name, 0444, parent, q, &qstat_fops); } -void qdio_setup_debug_entries(struct qdio_irq *irq_ptr, struct ccw_device *cdev) +void qdio_setup_debug_entries(struct qdio_irq *irq_ptr) { struct qdio_q *q; int i; - irq_ptr->debugfs_dev = debugfs_create_dir(dev_name(&cdev->dev), + irq_ptr->debugfs_dev = debugfs_create_dir(dev_name(&irq_ptr->cdev->dev), debugfs_root); - if (IS_ERR(irq_ptr->debugfs_dev)) - irq_ptr->debugfs_dev = NULL; - - irq_ptr->debugfs_perf = debugfs_create_file("statistics", - S_IFREG | S_IRUGO | S_IWUSR, - irq_ptr->debugfs_dev, irq_ptr, - &debugfs_perf_fops); - if (IS_ERR(irq_ptr->debugfs_perf)) - irq_ptr->debugfs_perf = NULL; + debugfs_create_file("statistics", S_IFREG | S_IRUGO | S_IWUSR, + irq_ptr->debugfs_dev, irq_ptr, &debugfs_perf_fops); + debugfs_create_file("ssqd", 0444, irq_ptr->debugfs_dev, irq_ptr->cdev, + &ssqd_fops); for_each_input_queue(irq_ptr, q, i) - setup_debugfs_entry(q); + setup_debugfs_entry(irq_ptr->debugfs_dev, q); for_each_output_queue(irq_ptr, q, i) - setup_debugfs_entry(q); + setup_debugfs_entry(irq_ptr->debugfs_dev, q); } void qdio_shutdown_debug_entries(struct qdio_irq *irq_ptr) { - struct qdio_q *q; - int i; - - for_each_input_queue(irq_ptr, q, i) - debugfs_remove(q->debugfs_q); - for_each_output_queue(irq_ptr, q, i) - debugfs_remove(q->debugfs_q); - debugfs_remove(irq_ptr->debugfs_perf); - debugfs_remove(irq_ptr->debugfs_dev); + debugfs_remove_recursive(irq_ptr->debugfs_dev); } int __init qdio_debug_init(void) @@ -352,7 +353,7 @@ int __init qdio_debug_init(void) void qdio_debug_exit(void) { qdio_clear_dbf_list(); - debugfs_remove(debugfs_root); + debugfs_remove_recursive(debugfs_root); debug_unregister(qdio_dbf_setup); debug_unregister(qdio_dbf_error); } diff --git a/drivers/s390/cio/qdio_debug.h b/drivers/s390/cio/qdio_debug.h index f85f5fa7cefc..122450ba6b90 100644 --- a/drivers/s390/cio/qdio_debug.h +++ b/ |