Lines Matching refs:sdp
191 static Sg_fd *sg_add_sfp(Sg_device * sdp);
204 #define sg_printk(prefix, sdp, fmt, a...) \ argument
205 sdev_prefix_printk(prefix, (sdp)->device, (sdp)->name, fmt, ##a)
246 open_wait(Sg_device *sdp, int flags) in open_wait() argument
251 while (sdp->open_cnt > 0) { in open_wait()
252 mutex_unlock(&sdp->open_rel_lock); in open_wait()
253 retval = wait_event_interruptible(sdp->open_wait, in open_wait()
254 (atomic_read(&sdp->detaching) || in open_wait()
255 !sdp->open_cnt)); in open_wait()
256 mutex_lock(&sdp->open_rel_lock); in open_wait()
260 if (atomic_read(&sdp->detaching)) in open_wait()
264 while (sdp->exclude) { in open_wait()
265 mutex_unlock(&sdp->open_rel_lock); in open_wait()
266 retval = wait_event_interruptible(sdp->open_wait, in open_wait()
267 (atomic_read(&sdp->detaching) || in open_wait()
268 !sdp->exclude)); in open_wait()
269 mutex_lock(&sdp->open_rel_lock); in open_wait()
273 if (atomic_read(&sdp->detaching)) in open_wait()
288 Sg_device *sdp; in sg_open() local
295 sdp = sg_get_dev(dev); in sg_open()
296 if (IS_ERR(sdp)) in sg_open()
297 return PTR_ERR(sdp); in sg_open()
299 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_open()
304 retval = scsi_device_get(sdp->device); in sg_open()
308 retval = scsi_autopm_get_device(sdp->device); in sg_open()
316 scsi_block_when_processing_errors(sdp->device))) { in sg_open()
322 mutex_lock(&sdp->open_rel_lock); in sg_open()
325 if (sdp->open_cnt > 0) { in sg_open()
330 if (sdp->exclude) { in sg_open()
336 retval = open_wait(sdp, flags); in sg_open()
343 sdp->exclude = true; in sg_open()
345 if (sdp->open_cnt < 1) { /* no existing opens */ in sg_open()
346 sdp->sgdebug = 0; in sg_open()
347 q = sdp->device->request_queue; in sg_open()
348 sdp->sg_tablesize = queue_max_segments(q); in sg_open()
350 sfp = sg_add_sfp(sdp); in sg_open()
357 sdp->open_cnt++; in sg_open()
358 mutex_unlock(&sdp->open_rel_lock); in sg_open()
362 kref_put(&sdp->d_ref, sg_device_destroy); in sg_open()
367 sdp->exclude = false; /* undo if error */ in sg_open()
368 wake_up_interruptible(&sdp->open_wait); in sg_open()
371 mutex_unlock(&sdp->open_rel_lock); in sg_open()
373 scsi_autopm_put_device(sdp->device); in sg_open()
375 scsi_device_put(sdp->device); in sg_open()
384 Sg_device *sdp; in sg_release() local
387 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_release()
389 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, "sg_release\n")); in sg_release()
391 mutex_lock(&sdp->open_rel_lock); in sg_release()
392 scsi_autopm_put_device(sdp->device); in sg_release()
394 sdp->open_cnt--; in sg_release()
398 if (sdp->exclude) { in sg_release()
399 sdp->exclude = false; in sg_release()
400 wake_up_interruptible_all(&sdp->open_wait); in sg_release()
401 } else if (0 == sdp->open_cnt) { in sg_release()
402 wake_up_interruptible(&sdp->open_wait); in sg_release()
404 mutex_unlock(&sdp->open_rel_lock); in sg_release()
443 Sg_device *sdp; in sg_read() local
459 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_read()
461 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_read()
471 if (atomic_read(&sdp->detaching)) in sg_read()
476 (atomic_read(&sdp->detaching) || in sg_read()
478 if (atomic_read(&sdp->detaching)) in sg_read()
607 Sg_device *sdp; in sg_write() local
619 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_write()
621 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_write()
623 if (atomic_read(&sdp->detaching)) in sg_write()
626 scsi_block_when_processing_errors(sdp->device))) in sg_write()
645 SCSI_LOG_TIMEOUT(1, sg_printk(KERN_INFO, sdp, in sg_write()
659 SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sdp, in sg_write()
786 Sg_device *sdp = sfp->parentdp; in sg_common_write() local
814 if (atomic_read(&sdp->detaching)) { in sg_common_write()
920 sg_ioctl_common(struct file *filp, Sg_device *sdp, Sg_fd *sfp, in sg_ioctl_common() argument
928 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_ioctl_common()
934 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
936 if (!scsi_block_when_processing_errors(sdp->device)) in sg_ioctl_common()
943 (srp_done(sfp, srp) || atomic_read(&sdp->detaching))); in sg_ioctl_common()
944 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
985 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
988 v.host_no = sdp->device->host->host_no; in sg_ioctl_common()
989 v.channel = sdp->device->channel; in sg_ioctl_common()
990 v.scsi_id = sdp->device->id; in sg_ioctl_common()
991 v.lun = sdp->device->lun; in sg_ioctl_common()
992 v.scsi_type = sdp->device->type; in sg_ioctl_common()
993 v.h_cmd_per_lun = sdp->device->host->cmd_per_lun; in sg_ioctl_common()
994 v.d_queue_depth = sdp->device->queue_depth; in sg_ioctl_common()
1026 return put_user(sdp->sg_tablesize, ip); in sg_ioctl_common()
1034 max_sectors_bytes(sdp->device->request_queue)); in sg_ioctl_common()
1050 max_sectors_bytes(sdp->device->request_queue)); in sg_ioctl_common()
1080 val = (sdp->device ? 1 : 0); in sg_ioctl_common()
1105 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
1107 return put_user(sdp->device->host->hostt->emulated, ip); in sg_ioctl_common()
1109 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
1111 return scsi_ioctl(sdp->device, NULL, filp->f_mode, cmd_in, p); in sg_ioctl_common()
1116 sdp->sgdebug = (char) val; in sg_ioctl_common()
1119 return put_user(max_sectors_bytes(sdp->device->request_queue), in sg_ioctl_common()
1122 return blk_trace_setup(sdp->device->request_queue, sdp->name, in sg_ioctl_common()
1123 MKDEV(SCSI_GENERIC_MAJOR, sdp->index), in sg_ioctl_common()
1126 return blk_trace_startstop(sdp->device->request_queue, 1); in sg_ioctl_common()
1128 return blk_trace_startstop(sdp->device->request_queue, 0); in sg_ioctl_common()
1130 return blk_trace_remove(sdp->device->request_queue); in sg_ioctl_common()
1136 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
1145 result = scsi_ioctl_block_when_processing_errors(sdp->device, in sg_ioctl_common()
1157 Sg_device *sdp; in sg_ioctl() local
1161 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_ioctl()
1164 ret = sg_ioctl_common(filp, sdp, sfp, cmd_in, p); in sg_ioctl()
1167 return scsi_ioctl(sdp->device, NULL, filp->f_mode, cmd_in, p); in sg_ioctl()
1174 Sg_device *sdp; in sg_poll() local
1183 sdp = sfp->parentdp; in sg_poll()
1184 if (!sdp) in sg_poll()
1196 if (atomic_read(&sdp->detaching)) in sg_poll()
1203 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_poll()
1211 Sg_device *sdp; in sg_fasync() local
1214 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_fasync()
1216 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_fasync()
1324 Sg_device *sdp; in sg_rq_end_io() local
1338 sdp = sfp->parentdp; in sg_rq_end_io()
1339 if (unlikely(atomic_read(&sdp->detaching))) in sg_rq_end_io()
1346 SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sdp, in sg_rq_end_io()
1361 if ((sdp->sgdebug > 0) && in sg_rq_end_io()
1364 __scsi_print_sense(sdp->device, __func__, sense, in sg_rq_end_io()
1372 && sdp->device->removable) { in sg_rq_end_io()
1375 sdp->device->changed = 1; in sg_rq_end_io()
1439 Sg_device *sdp; in sg_alloc() local
1444 sdp = kzalloc(sizeof(Sg_device), GFP_KERNEL); in sg_alloc()
1445 if (!sdp) { in sg_alloc()
1454 error = idr_alloc(&sg_index_idr, sdp, 0, SG_MAX_DEVS, GFP_NOWAIT); in sg_alloc()
1472 sprintf(sdp->name, "sg%d", k); in sg_alloc()
1473 sdp->device = scsidp; in sg_alloc()
1474 mutex_init(&sdp->open_rel_lock); in sg_alloc()
1475 INIT_LIST_HEAD(&sdp->sfds); in sg_alloc()
1476 init_waitqueue_head(&sdp->open_wait); in sg_alloc()
1477 atomic_set(&sdp->detaching, 0); in sg_alloc()
1478 rwlock_init(&sdp->sfd_lock); in sg_alloc()
1479 sdp->sg_tablesize = queue_max_segments(q); in sg_alloc()
1480 sdp->index = k; in sg_alloc()
1481 kref_init(&sdp->d_ref); in sg_alloc()
1489 kfree(sdp); in sg_alloc()
1492 return sdp; in sg_alloc()
1499 Sg_device *sdp = NULL; in sg_add_device() local
1513 sdp = sg_alloc(scsidp); in sg_add_device()
1514 if (IS_ERR(sdp)) { in sg_add_device()
1516 error = PTR_ERR(sdp); in sg_add_device()
1520 error = cdev_add(cdev, MKDEV(SCSI_GENERIC_MAJOR, sdp->index), 1); in sg_add_device()
1524 sdp->cdev = cdev; in sg_add_device()
1530 sdp->index), in sg_add_device()
1531 sdp, "%s", sdp->name); in sg_add_device()
1541 "to sg%d\n", __func__, sdp->index); in sg_add_device()
1546 "type %d\n", sdp->index, scsidp->type); in sg_add_device()
1548 dev_set_drvdata(cl_dev, sdp); in sg_add_device()
1554 idr_remove(&sg_index_idr, sdp->index); in sg_add_device()
1556 kfree(sdp); in sg_add_device()
1567 struct sg_device *sdp = container_of(kref, struct sg_device, d_ref); in sg_device_destroy() local
1576 idr_remove(&sg_index_idr, sdp->index); in sg_device_destroy()
1580 sg_printk(KERN_INFO, sdp, "sg_device_destroy\n")); in sg_device_destroy()
1582 kfree(sdp); in sg_device_destroy()
1589 Sg_device *sdp = dev_get_drvdata(cl_dev); in sg_remove_device() local
1594 if (!sdp) in sg_remove_device()
1597 val = atomic_inc_return(&sdp->detaching); in sg_remove_device()
1601 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_remove_device()
1604 read_lock_irqsave(&sdp->sfd_lock, iflags); in sg_remove_device()
1605 list_for_each_entry(sfp, &sdp->sfds, sfd_siblings) { in sg_remove_device()
1609 wake_up_interruptible_all(&sdp->open_wait); in sg_remove_device()
1610 read_unlock_irqrestore(&sdp->sfd_lock, iflags); in sg_remove_device()
1613 device_destroy(sg_sysfs_class, MKDEV(SCSI_GENERIC_MAJOR, sdp->index)); in sg_remove_device()
1614 cdev_del(sdp->cdev); in sg_remove_device()
1615 sdp->cdev = NULL; in sg_remove_device()
1617 kref_put(&sdp->d_ref, sg_device_destroy); in sg_remove_device()
2128 sg_add_sfp(Sg_device * sdp) in sg_add_sfp() argument
2148 sfp->parentdp = sdp; in sg_add_sfp()
2149 write_lock_irqsave(&sdp->sfd_lock, iflags); in sg_add_sfp()
2150 if (atomic_read(&sdp->detaching)) { in sg_add_sfp()
2151 write_unlock_irqrestore(&sdp->sfd_lock, iflags); in sg_add_sfp()
2155 list_add_tail(&sfp->sfd_siblings, &sdp->sfds); in sg_add_sfp()
2156 write_unlock_irqrestore(&sdp->sfd_lock, iflags); in sg_add_sfp()
2157 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_add_sfp()
2163 max_sectors_bytes(sdp->device->request_queue)); in sg_add_sfp()
2165 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_add_sfp()
2170 kref_get(&sdp->d_ref); in sg_add_sfp()
2179 struct sg_device *sdp = sfp->parentdp; in sg_remove_sfp_usercontext() local
2194 SCSI_LOG_TIMEOUT(6, sg_printk(KERN_INFO, sdp, in sg_remove_sfp_usercontext()
2201 SCSI_LOG_TIMEOUT(6, sg_printk(KERN_INFO, sdp, in sg_remove_sfp_usercontext()
2205 scsi_device_put(sdp->device); in sg_remove_sfp_usercontext()
2206 kref_put(&sdp->d_ref, sg_device_destroy); in sg_remove_sfp_usercontext()
2214 struct sg_device *sdp = sfp->parentdp; in sg_remove_sfp() local
2217 write_lock_irqsave(&sdp->sfd_lock, iflags); in sg_remove_sfp()
2219 write_unlock_irqrestore(&sdp->sfd_lock, iflags); in sg_remove_sfp()
2259 struct sg_device *sdp; in sg_get_dev() local
2263 sdp = sg_lookup_dev(dev); in sg_get_dev()
2264 if (!sdp) in sg_get_dev()
2265 sdp = ERR_PTR(-ENXIO); in sg_get_dev()
2266 else if (atomic_read(&sdp->detaching)) { in sg_get_dev()
2270 sdp = ERR_PTR(-ENODEV); in sg_get_dev()
2272 kref_get(&sdp->d_ref); in sg_get_dev()
2275 return sdp; in sg_get_dev()
2453 Sg_device *sdp; in sg_proc_seq_show_dev() local
2458 sdp = it ? sg_lookup_dev(it->index) : NULL; in sg_proc_seq_show_dev()
2459 if ((NULL == sdp) || (NULL == sdp->device) || in sg_proc_seq_show_dev()
2460 (atomic_read(&sdp->detaching))) in sg_proc_seq_show_dev()
2463 scsidp = sdp->device; in sg_proc_seq_show_dev()
2479 Sg_device *sdp; in sg_proc_seq_show_devstrs() local
2484 sdp = it ? sg_lookup_dev(it->index) : NULL; in sg_proc_seq_show_devstrs()
2485 scsidp = sdp ? sdp->device : NULL; in sg_proc_seq_show_devstrs()
2486 if (sdp && scsidp && (!atomic_read(&sdp->detaching))) in sg_proc_seq_show_devstrs()
2496 static void sg_proc_debug_helper(struct seq_file *s, Sg_device * sdp) in sg_proc_debug_helper() argument
2506 list_for_each_entry(fp, &sdp->sfds, sfd_siblings) { in sg_proc_debug_helper()
2561 Sg_device *sdp; in sg_proc_seq_show_debug() local
2569 sdp = it ? sg_lookup_dev(it->index) : NULL; in sg_proc_seq_show_debug()
2570 if (NULL == sdp) in sg_proc_seq_show_debug()
2572 read_lock(&sdp->sfd_lock); in sg_proc_seq_show_debug()
2573 if (!list_empty(&sdp->sfds)) { in sg_proc_seq_show_debug()
2574 seq_printf(s, " >>> device=%s ", sdp->name); in sg_proc_seq_show_debug()
2575 if (atomic_read(&sdp->detaching)) in sg_proc_seq_show_debug()
2577 else if (sdp->device) { in sg_proc_seq_show_debug()
2578 struct scsi_device *scsidp = sdp->device; in sg_proc_seq_show_debug()
2587 sdp->sg_tablesize, sdp->exclude, sdp->open_cnt); in sg_proc_seq_show_debug()
2588 sg_proc_debug_helper(s, sdp); in sg_proc_seq_show_debug()
2590 read_unlock(&sdp->sfd_lock); in sg_proc_seq_show_debug()