Lines Matching refs:sdp
192 static Sg_fd *sg_add_sfp(Sg_device * sdp);
205 #define sg_printk(prefix, sdp, fmt, a...) \ argument
206 sdev_prefix_printk(prefix, (sdp)->device, (sdp)->name, fmt, ##a)
247 open_wait(Sg_device *sdp, int flags) in open_wait() argument
252 while (sdp->open_cnt > 0) { in open_wait()
253 mutex_unlock(&sdp->open_rel_lock); in open_wait()
254 retval = wait_event_interruptible(sdp->open_wait, in open_wait()
255 (atomic_read(&sdp->detaching) || in open_wait()
256 !sdp->open_cnt)); in open_wait()
257 mutex_lock(&sdp->open_rel_lock); in open_wait()
261 if (atomic_read(&sdp->detaching)) in open_wait()
265 while (sdp->exclude) { in open_wait()
266 mutex_unlock(&sdp->open_rel_lock); in open_wait()
267 retval = wait_event_interruptible(sdp->open_wait, in open_wait()
268 (atomic_read(&sdp->detaching) || in open_wait()
269 !sdp->exclude)); in open_wait()
270 mutex_lock(&sdp->open_rel_lock); in open_wait()
274 if (atomic_read(&sdp->detaching)) in open_wait()
289 Sg_device *sdp; in sg_open() local
296 sdp = sg_get_dev(dev); in sg_open()
297 if (IS_ERR(sdp)) in sg_open()
298 return PTR_ERR(sdp); in sg_open()
300 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_open()
305 retval = scsi_device_get(sdp->device); in sg_open()
309 retval = scsi_autopm_get_device(sdp->device); in sg_open()
317 scsi_block_when_processing_errors(sdp->device))) { in sg_open()
323 mutex_lock(&sdp->open_rel_lock); in sg_open()
326 if (sdp->open_cnt > 0) { in sg_open()
331 if (sdp->exclude) { in sg_open()
337 retval = open_wait(sdp, flags); in sg_open()
344 sdp->exclude = true; in sg_open()
346 if (sdp->open_cnt < 1) { /* no existing opens */ in sg_open()
347 sdp->sgdebug = 0; in sg_open()
348 q = sdp->device->request_queue; in sg_open()
349 sdp->sg_tablesize = queue_max_segments(q); in sg_open()
351 sfp = sg_add_sfp(sdp); in sg_open()
358 sdp->open_cnt++; in sg_open()
359 mutex_unlock(&sdp->open_rel_lock); in sg_open()
363 kref_put(&sdp->d_ref, sg_device_destroy); in sg_open()
368 sdp->exclude = false; /* undo if error */ in sg_open()
369 wake_up_interruptible(&sdp->open_wait); in sg_open()
372 mutex_unlock(&sdp->open_rel_lock); in sg_open()
374 scsi_autopm_put_device(sdp->device); in sg_open()
376 scsi_device_put(sdp->device); in sg_open()
385 Sg_device *sdp; in sg_release() local
388 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_release()
390 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, "sg_release\n")); in sg_release()
392 mutex_lock(&sdp->open_rel_lock); in sg_release()
393 scsi_autopm_put_device(sdp->device); in sg_release()
395 sdp->open_cnt--; in sg_release()
399 if (sdp->exclude) { in sg_release()
400 sdp->exclude = false; in sg_release()
401 wake_up_interruptible_all(&sdp->open_wait); in sg_release()
402 } else if (0 == sdp->open_cnt) { in sg_release()
403 wake_up_interruptible(&sdp->open_wait); in sg_release()
405 mutex_unlock(&sdp->open_rel_lock); in sg_release()
444 Sg_device *sdp; in sg_read() local
460 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_read()
462 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_read()
472 if (atomic_read(&sdp->detaching)) in sg_read()
477 (atomic_read(&sdp->detaching) || in sg_read()
479 if (atomic_read(&sdp->detaching)) in sg_read()
608 Sg_device *sdp; in sg_write() local
620 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_write()
622 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_write()
624 if (atomic_read(&sdp->detaching)) in sg_write()
627 scsi_block_when_processing_errors(sdp->device))) in sg_write()
646 SCSI_LOG_TIMEOUT(1, sg_printk(KERN_INFO, sdp, in sg_write()
660 SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sdp, in sg_write()
787 Sg_device *sdp = sfp->parentdp; in sg_common_write() local
815 if (atomic_read(&sdp->detaching)) { in sg_common_write()
921 sg_ioctl_common(struct file *filp, Sg_device *sdp, Sg_fd *sfp, in sg_ioctl_common() argument
929 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_ioctl_common()
935 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
937 if (!scsi_block_when_processing_errors(sdp->device)) in sg_ioctl_common()
944 (srp_done(sfp, srp) || atomic_read(&sdp->detaching))); in sg_ioctl_common()
945 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
986 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
989 v.host_no = sdp->device->host->host_no; in sg_ioctl_common()
990 v.channel = sdp->device->channel; in sg_ioctl_common()
991 v.scsi_id = sdp->device->id; in sg_ioctl_common()
992 v.lun = sdp->device->lun; in sg_ioctl_common()
993 v.scsi_type = sdp->device->type; in sg_ioctl_common()
994 v.h_cmd_per_lun = sdp->device->host->cmd_per_lun; in sg_ioctl_common()
995 v.d_queue_depth = sdp->device->queue_depth; in sg_ioctl_common()
1027 return put_user(sdp->sg_tablesize, ip); in sg_ioctl_common()
1035 max_sectors_bytes(sdp->device->request_queue)); in sg_ioctl_common()
1051 max_sectors_bytes(sdp->device->request_queue)); in sg_ioctl_common()
1081 val = (sdp->device ? 1 : 0); in sg_ioctl_common()
1106 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
1108 return put_user(sdp->device->host->hostt->emulated, ip); in sg_ioctl_common()
1110 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
1112 return scsi_ioctl(sdp->device, NULL, filp->f_mode, cmd_in, p); in sg_ioctl_common()
1117 sdp->sgdebug = (char) val; in sg_ioctl_common()
1120 return put_user(max_sectors_bytes(sdp->device->request_queue), in sg_ioctl_common()
1123 return blk_trace_setup(sdp->device->request_queue, sdp->name, in sg_ioctl_common()
1124 MKDEV(SCSI_GENERIC_MAJOR, sdp->index), in sg_ioctl_common()
1127 return blk_trace_startstop(sdp->device->request_queue, 1); in sg_ioctl_common()
1129 return blk_trace_startstop(sdp->device->request_queue, 0); in sg_ioctl_common()
1131 return blk_trace_remove(sdp->device->request_queue); in sg_ioctl_common()
1137 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
1146 result = scsi_ioctl_block_when_processing_errors(sdp->device, in sg_ioctl_common()
1158 Sg_device *sdp; in sg_ioctl() local
1162 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_ioctl()
1165 ret = sg_ioctl_common(filp, sdp, sfp, cmd_in, p); in sg_ioctl()
1168 return scsi_ioctl(sdp->device, NULL, filp->f_mode, cmd_in, p); in sg_ioctl()
1175 Sg_device *sdp; in sg_poll() local
1184 sdp = sfp->parentdp; in sg_poll()
1185 if (!sdp) in sg_poll()
1197 if (atomic_read(&sdp->detaching)) in sg_poll()
1204 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_poll()
1212 Sg_device *sdp; in sg_fasync() local
1215 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_fasync()
1217 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_fasync()
1325 Sg_device *sdp; in sg_rq_end_io() local
1339 sdp = sfp->parentdp; in sg_rq_end_io()
1340 if (unlikely(atomic_read(&sdp->detaching))) in sg_rq_end_io()
1347 SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sdp, in sg_rq_end_io()
1362 if ((sdp->sgdebug > 0) && in sg_rq_end_io()
1365 __scsi_print_sense(sdp->device, __func__, sense, in sg_rq_end_io()
1373 && sdp->device->removable) { in sg_rq_end_io()
1376 sdp->device->changed = 1; in sg_rq_end_io()
1440 Sg_device *sdp; in sg_alloc() local
1445 sdp = kzalloc(sizeof(Sg_device), GFP_KERNEL); in sg_alloc()
1446 if (!sdp) { in sg_alloc()
1455 error = idr_alloc(&sg_index_idr, sdp, 0, SG_MAX_DEVS, GFP_NOWAIT); in sg_alloc()
1473 sprintf(sdp->name, "sg%d", k); in sg_alloc()
1474 sdp->device = scsidp; in sg_alloc()
1475 mutex_init(&sdp->open_rel_lock); in sg_alloc()
1476 INIT_LIST_HEAD(&sdp->sfds); in sg_alloc()
1477 init_waitqueue_head(&sdp->open_wait); in sg_alloc()
1478 atomic_set(&sdp->detaching, 0); in sg_alloc()
1479 rwlock_init(&sdp->sfd_lock); in sg_alloc()
1480 sdp->sg_tablesize = queue_max_segments(q); in sg_alloc()
1481 sdp->index = k; in sg_alloc()
1482 kref_init(&sdp->d_ref); in sg_alloc()
1490 kfree(sdp); in sg_alloc()
1493 return sdp; in sg_alloc()
1500 Sg_device *sdp = NULL; in sg_add_device() local
1514 sdp = sg_alloc(scsidp); in sg_add_device()
1515 if (IS_ERR(sdp)) { in sg_add_device()
1517 error = PTR_ERR(sdp); in sg_add_device()
1521 error = cdev_add(cdev, MKDEV(SCSI_GENERIC_MAJOR, sdp->index), 1); in sg_add_device()
1525 sdp->cdev = cdev; in sg_add_device()
1531 sdp->index), in sg_add_device()
1532 sdp, "%s", sdp->name); in sg_add_device()
1542 "to sg%d\n", __func__, sdp->index); in sg_add_device()
1547 "type %d\n", sdp->index, scsidp->type); in sg_add_device()
1549 dev_set_drvdata(cl_dev, sdp); in sg_add_device()
1555 idr_remove(&sg_index_idr, sdp->index); in sg_add_device()
1557 kfree(sdp); in sg_add_device()
1568 struct sg_device *sdp = container_of(kref, struct sg_device, d_ref); in sg_device_destroy() local
1577 idr_remove(&sg_index_idr, sdp->index); in sg_device_destroy()
1581 sg_printk(KERN_INFO, sdp, "sg_device_destroy\n")); in sg_device_destroy()
1583 kfree(sdp); in sg_device_destroy()
1590 Sg_device *sdp = dev_get_drvdata(cl_dev); in sg_remove_device() local
1595 if (!sdp) in sg_remove_device()
1598 val = atomic_inc_return(&sdp->detaching); in sg_remove_device()
1602 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_remove_device()
1605 read_lock_irqsave(&sdp->sfd_lock, iflags); in sg_remove_device()
1606 list_for_each_entry(sfp, &sdp->sfds, sfd_siblings) { in sg_remove_device()
1610 wake_up_interruptible_all(&sdp->open_wait); in sg_remove_device()
1611 read_unlock_irqrestore(&sdp->sfd_lock, iflags); in sg_remove_device()
1614 device_destroy(sg_sysfs_class, MKDEV(SCSI_GENERIC_MAJOR, sdp->index)); in sg_remove_device()
1615 cdev_del(sdp->cdev); in sg_remove_device()
1616 sdp->cdev = NULL; in sg_remove_device()
1618 kref_put(&sdp->d_ref, sg_device_destroy); in sg_remove_device()
2129 sg_add_sfp(Sg_device * sdp) in sg_add_sfp() argument
2149 sfp->parentdp = sdp; in sg_add_sfp()
2150 write_lock_irqsave(&sdp->sfd_lock, iflags); in sg_add_sfp()
2151 if (atomic_read(&sdp->detaching)) { in sg_add_sfp()
2152 write_unlock_irqrestore(&sdp->sfd_lock, iflags); in sg_add_sfp()
2156 list_add_tail(&sfp->sfd_siblings, &sdp->sfds); in sg_add_sfp()
2157 write_unlock_irqrestore(&sdp->sfd_lock, iflags); in sg_add_sfp()
2158 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_add_sfp()
2164 max_sectors_bytes(sdp->device->request_queue)); in sg_add_sfp()
2166 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_add_sfp()
2171 kref_get(&sdp->d_ref); in sg_add_sfp()
2180 struct sg_device *sdp = sfp->parentdp; in sg_remove_sfp_usercontext() local
2195 SCSI_LOG_TIMEOUT(6, sg_printk(KERN_INFO, sdp, in sg_remove_sfp_usercontext()
2202 SCSI_LOG_TIMEOUT(6, sg_printk(KERN_INFO, sdp, in sg_remove_sfp_usercontext()
2206 scsi_device_put(sdp->device); in sg_remove_sfp_usercontext()
2207 kref_put(&sdp->d_ref, sg_device_destroy); in sg_remove_sfp_usercontext()
2215 struct sg_device *sdp = sfp->parentdp; in sg_remove_sfp() local
2218 write_lock_irqsave(&sdp->sfd_lock, iflags); in sg_remove_sfp()
2220 write_unlock_irqrestore(&sdp->sfd_lock, iflags); in sg_remove_sfp()
2260 struct sg_device *sdp; in sg_get_dev() local
2264 sdp = sg_lookup_dev(dev); in sg_get_dev()
2265 if (!sdp) in sg_get_dev()
2266 sdp = ERR_PTR(-ENXIO); in sg_get_dev()
2267 else if (atomic_read(&sdp->detaching)) { in sg_get_dev()
2271 sdp = ERR_PTR(-ENODEV); in sg_get_dev()
2273 kref_get(&sdp->d_ref); in sg_get_dev()
2276 return sdp; in sg_get_dev()
2454 Sg_device *sdp; in sg_proc_seq_show_dev() local
2459 sdp = it ? sg_lookup_dev(it->index) : NULL; in sg_proc_seq_show_dev()
2460 if ((NULL == sdp) || (NULL == sdp->device) || in sg_proc_seq_show_dev()
2461 (atomic_read(&sdp->detaching))) in sg_proc_seq_show_dev()
2464 scsidp = sdp->device; in sg_proc_seq_show_dev()
2480 Sg_device *sdp; in sg_proc_seq_show_devstrs() local
2485 sdp = it ? sg_lookup_dev(it->index) : NULL; in sg_proc_seq_show_devstrs()
2486 scsidp = sdp ? sdp->device : NULL; in sg_proc_seq_show_devstrs()
2487 if (sdp && scsidp && (!atomic_read(&sdp->detaching))) in sg_proc_seq_show_devstrs()
2497 static void sg_proc_debug_helper(struct seq_file *s, Sg_device * sdp) in sg_proc_debug_helper() argument
2507 list_for_each_entry(fp, &sdp->sfds, sfd_siblings) { in sg_proc_debug_helper()
2562 Sg_device *sdp; in sg_proc_seq_show_debug() local
2570 sdp = it ? sg_lookup_dev(it->index) : NULL; in sg_proc_seq_show_debug()
2571 if (NULL == sdp) in sg_proc_seq_show_debug()
2573 read_lock(&sdp->sfd_lock); in sg_proc_seq_show_debug()
2574 if (!list_empty(&sdp->sfds)) { in sg_proc_seq_show_debug()
2575 seq_printf(s, " >>> device=%s ", sdp->name); in sg_proc_seq_show_debug()
2576 if (atomic_read(&sdp->detaching)) in sg_proc_seq_show_debug()
2578 else if (sdp->device) { in sg_proc_seq_show_debug()
2579 struct scsi_device *scsidp = sdp->device; in sg_proc_seq_show_debug()
2588 sdp->sg_tablesize, sdp->exclude, sdp->open_cnt); in sg_proc_seq_show_debug()
2589 sg_proc_debug_helper(s, sdp); in sg_proc_seq_show_debug()
2591 read_unlock(&sdp->sfd_lock); in sg_proc_seq_show_debug()