Lines Matching refs:sfp
183 static int sg_build_indirect(Sg_scatter_hold * schp, Sg_fd * sfp, int buff_size);
184 static ssize_t sg_new_read(Sg_fd * sfp, char __user *buf, size_t count,
186 static ssize_t sg_new_write(Sg_fd *sfp, struct file *file,
189 static int sg_common_write(Sg_fd * sfp, Sg_request * srp,
192 static void sg_remove_scat(Sg_fd * sfp, Sg_scatter_hold * schp);
193 static void sg_build_reserve(Sg_fd * sfp, int req_size);
194 static void sg_link_reserve(Sg_fd * sfp, Sg_request * srp, int size);
195 static void sg_unlink_reserve(Sg_fd * sfp, Sg_request * srp);
198 static Sg_request *sg_get_rq_mark(Sg_fd * sfp, int pack_id, bool *busy);
199 static Sg_request *sg_add_request(Sg_fd * sfp);
200 static int sg_remove_request(Sg_fd * sfp, Sg_request * srp);
236 struct sg_fd *sfp = filp->private_data; in sg_allow_access() local
238 if (sfp->parentdp->device->type == TYPE_SCANNER) in sg_allow_access()
289 Sg_fd *sfp; in sg_open() local
350 sfp = sg_add_sfp(sdp); in sg_open()
351 if (IS_ERR(sfp)) { in sg_open()
352 retval = PTR_ERR(sfp); in sg_open()
356 filp->private_data = sfp; in sg_open()
385 Sg_fd *sfp; in sg_release() local
387 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_release()
393 kref_put(&sfp->f_ref, sg_remove_sfp); in sg_release()
444 Sg_fd *sfp; in sg_read() local
460 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_read()
465 if (sfp->force_packid) in sg_read()
470 srp = sg_get_rq_mark(sfp, req_pack_id, &busy); in sg_read()
474 retval = wait_event_interruptible(sfp->read_wait, in sg_read()
475 ((srp = sg_get_rq_mark(sfp, req_pack_id, &busy)) || in sg_read()
482 return sg_new_read(sfp, buf, count, srp); in sg_read()
550 sg_remove_request(sfp, srp); in sg_read()
558 sg_new_read(Sg_fd * sfp, char __user *buf, size_t count, Sg_request * srp) in sg_new_read() argument
594 sg_remove_request(sfp, srp); in sg_new_read()
605 Sg_fd *sfp; in sg_write() local
616 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_write()
632 return sg_new_write(sfp, filp, buf, count, in sg_write()
641 if (!(srp = sg_add_request(sfp))) { in sg_write()
646 mutex_lock(&sfp->f_mutex); in sg_write()
647 if (sfp->next_cmd_len > 0) { in sg_write()
648 cmd_size = sfp->next_cmd_len; in sg_write()
649 sfp->next_cmd_len = 0; /* reset so only this write() effected */ in sg_write()
655 mutex_unlock(&sfp->f_mutex); in sg_write()
664 sg_remove_request(sfp, srp); in sg_write()
689 sg_remove_request(sfp, srp); in sg_write()
707 k = sg_common_write(sfp, srp, cmnd, sfp->timeout, blocking); in sg_write()
712 sg_new_write(Sg_fd *sfp, struct file *file, const char __user *buf, in sg_new_write() argument
726 sfp->cmd_q = 1; /* when sg_io_hdr seen, set command queuing on */ in sg_new_write()
727 if (!(srp = sg_add_request(sfp))) { in sg_new_write()
728 SCSI_LOG_TIMEOUT(1, sg_printk(KERN_INFO, sfp->parentdp, in sg_new_write()
735 sg_remove_request(sfp, srp); in sg_new_write()
739 sg_remove_request(sfp, srp); in sg_new_write()
743 if (hp->dxfer_len > sfp->reserve.bufflen) { in sg_new_write()
744 sg_remove_request(sfp, srp); in sg_new_write()
748 sg_remove_request(sfp, srp); in sg_new_write()
751 if (sfp->res_in_use) { in sg_new_write()
752 sg_remove_request(sfp, srp); in sg_new_write()
759 sg_remove_request(sfp, srp); in sg_new_write()
763 sg_remove_request(sfp, srp); in sg_new_write()
767 sg_remove_request(sfp, srp); in sg_new_write()
770 k = sg_common_write(sfp, srp, cmnd, timeout, blocking); in sg_new_write()
779 sg_common_write(Sg_fd * sfp, Sg_request * srp, in sg_common_write() argument
783 Sg_device *sdp = sfp->parentdp; in sg_common_write()
794 SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sfp->parentdp, in sg_common_write()
799 sg_remove_request(sfp, srp); in sg_common_write()
805 SCSI_LOG_TIMEOUT(1, sg_printk(KERN_INFO, sfp->parentdp, in sg_common_write()
808 sg_remove_request(sfp, srp); in sg_common_write()
818 sg_remove_request(sfp, srp); in sg_common_write()
830 kref_get(&sfp->f_ref); /* sg_rq_end_io() does kref_put(). */ in sg_common_write()
836 static int srp_done(Sg_fd *sfp, Sg_request *srp) in srp_done() argument
841 read_lock_irqsave(&sfp->rq_list_lock, flags); in srp_done()
843 read_unlock_irqrestore(&sfp->rq_list_lock, flags); in srp_done()
857 sg_fill_request_table(Sg_fd *sfp, sg_req_info_t *rinfo) in sg_fill_request_table() argument
864 list_for_each_entry(srp, &sfp->rq_list, entry) { in sg_fill_request_table()
917 sg_ioctl_common(struct file *filp, Sg_device *sdp, Sg_fd *sfp, in sg_ioctl_common() argument
935 result = sg_new_write(sfp, filp, p, SZ_SG_IO_HDR, in sg_ioctl_common()
939 result = wait_event_interruptible(sfp->read_wait, in sg_ioctl_common()
940 srp_done(sfp, srp)); in sg_ioctl_common()
941 write_lock_irq(&sfp->rq_list_lock); in sg_ioctl_common()
944 write_unlock_irq(&sfp->rq_list_lock); in sg_ioctl_common()
945 result = sg_new_read(sfp, p, SZ_SG_IO_HDR, srp); in sg_ioctl_common()
949 write_unlock_irq(&sfp->rq_list_lock); in sg_ioctl_common()
960 sfp->timeout_user = val; in sg_ioctl_common()
961 sfp->timeout = mult_frac(val, HZ, USER_HZ); in sg_ioctl_common()
966 return sfp->timeout_user; in sg_ioctl_common()
998 sfp->force_packid = val ? 1 : 0; in sg_ioctl_common()
1001 read_lock_irqsave(&sfp->rq_list_lock, iflags); in sg_ioctl_common()
1002 list_for_each_entry(srp, &sfp->rq_list, entry) { in sg_ioctl_common()
1004 read_unlock_irqrestore(&sfp->rq_list_lock, in sg_ioctl_common()
1009 read_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_ioctl_common()
1012 read_lock_irqsave(&sfp->rq_list_lock, iflags); in sg_ioctl_common()
1014 list_for_each_entry(srp, &sfp->rq_list, entry) { in sg_ioctl_common()
1018 read_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_ioctl_common()
1030 mutex_lock(&sfp->f_mutex); in sg_ioctl_common()
1031 if (val != sfp->reserve.bufflen) { in sg_ioctl_common()
1032 if (sfp->mmap_called || in sg_ioctl_common()
1033 sfp->res_in_use) { in sg_ioctl_common()
1034 mutex_unlock(&sfp->f_mutex); in sg_ioctl_common()
1038 sg_remove_scat(sfp, &sfp->reserve); in sg_ioctl_common()
1039 sg_build_reserve(sfp, val); in sg_ioctl_common()
1041 mutex_unlock(&sfp->f_mutex); in sg_ioctl_common()
1044 val = min_t(int, sfp->reserve.bufflen, in sg_ioctl_common()
1051 sfp->cmd_q = val ? 1 : 0; in sg_ioctl_common()
1054 return put_user((int) sfp->cmd_q, ip); in sg_ioctl_common()
1059 sfp->keep_orphan = val; in sg_ioctl_common()
1062 return put_user((int) sfp->keep_orphan, ip); in sg_ioctl_common()
1069 sfp->next_cmd_len = (val > 0) ? val : 0; in sg_ioctl_common()
1085 read_lock_irqsave(&sfp->rq_list_lock, iflags); in sg_ioctl_common()
1086 sg_fill_request_table(sfp, rinfo); in sg_ioctl_common()
1087 read_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_ioctl_common()
1153 Sg_fd *sfp; in sg_ioctl() local
1156 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_ioctl()
1159 ret = sg_ioctl_common(filp, sdp, sfp, cmd_in, p); in sg_ioctl()
1170 Sg_fd *sfp; in sg_poll() local
1175 sfp = filp->private_data; in sg_poll()
1176 if (!sfp) in sg_poll()
1178 sdp = sfp->parentdp; in sg_poll()
1181 poll_wait(filp, &sfp->read_wait, wait); in sg_poll()
1182 read_lock_irqsave(&sfp->rq_list_lock, iflags); in sg_poll()
1183 list_for_each_entry(srp, &sfp->rq_list, entry) { in sg_poll()
1189 read_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_poll()
1193 else if (!sfp->cmd_q) { in sg_poll()
1207 Sg_fd *sfp; in sg_fasync() local
1209 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_fasync()
1214 return fasync_helper(fd, filp, mode, &sfp->async_qp); in sg_fasync()
1221 Sg_fd *sfp; in sg_vma_fault() local
1226 if ((NULL == vma) || (!(sfp = (Sg_fd *) vma->vm_private_data))) in sg_vma_fault()
1228 rsv_schp = &sfp->reserve; in sg_vma_fault()
1232 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sfp->parentdp, in sg_vma_fault()
1261 Sg_fd *sfp; in sg_mmap() local
1267 if ((!filp) || (!vma) || (!(sfp = (Sg_fd *) filp->private_data))) in sg_mmap()
1270 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sfp->parentdp, in sg_mmap()
1275 rsv_schp = &sfp->reserve; in sg_mmap()
1276 mutex_lock(&sfp->f_mutex); in sg_mmap()
1290 sfp->mmap_called = 1; in sg_mmap()
1292 vma->vm_private_data = sfp; in sg_mmap()
1295 mutex_unlock(&sfp->f_mutex); in sg_mmap()
1303 struct sg_fd *sfp = srp->parentfp; in sg_rq_end_io_usercontext() local
1306 sg_remove_request(sfp, srp); in sg_rq_end_io_usercontext()
1307 kref_put(&sfp->f_ref, sg_remove_sfp); in sg_rq_end_io_usercontext()
1320 Sg_fd *sfp; in sg_rq_end_io() local
1329 sfp = srp->parentfp; in sg_rq_end_io()
1330 if (WARN_ON(sfp == NULL)) in sg_rq_end_io()
1333 sdp = sfp->parentdp; in sg_rq_end_io()
1388 write_lock_irqsave(&sfp->rq_list_lock, iflags); in sg_rq_end_io()
1390 if (sfp->keep_orphan) in sg_rq_end_io()
1396 write_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_rq_end_io()
1402 wake_up_interruptible(&sfp->read_wait); in sg_rq_end_io()
1403 kill_fasync(&sfp->async_qp, SIGPOLL, POLL_IN); in sg_rq_end_io()
1404 kref_put(&sfp->f_ref, sg_remove_sfp); in sg_rq_end_io()
1586 Sg_fd *sfp; in sg_remove_device() local
1600 list_for_each_entry(sfp, &sdp->sfds, sfd_siblings) { in sg_remove_device()
1601 wake_up_interruptible_all(&sfp->read_wait); in sg_remove_device()
1602 kill_fasync(&sfp->async_qp, SIGPOLL, POLL_HUP); in sg_remove_device()
1720 Sg_fd *sfp = srp->parentfp; in sg_start_req() local
1726 Sg_scatter_hold *rsv_schp = &sfp->reserve; in sg_start_req()
1727 struct request_queue *q = sfp->parentdp->device->request_queue; in sg_start_req()
1732 SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sfp->parentdp, in sg_start_req()
1776 mutex_lock(&sfp->f_mutex); in sg_start_req()
1778 !sfp->res_in_use) { in sg_start_req()
1779 sfp->res_in_use = 1; in sg_start_req()
1780 sg_link_reserve(sfp, srp, dxfer_len); in sg_start_req()
1785 mutex_unlock(&sfp->f_mutex); in sg_start_req()
1788 res = sg_build_indirect(req_schp, sfp, dxfer_len); in sg_start_req()
1790 mutex_unlock(&sfp->f_mutex); in sg_start_req()
1794 mutex_unlock(&sfp->f_mutex); in sg_start_req()
1825 Sg_fd *sfp = srp->parentfp; in sg_finish_rem_req() local
1828 SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sfp->parentdp, in sg_finish_rem_req()
1838 sg_unlink_reserve(sfp, srp); in sg_finish_rem_req()
1840 sg_remove_scat(sfp, req_schp); in sg_finish_rem_req()
1846 sg_build_sgat(Sg_scatter_hold * schp, const Sg_fd * sfp, int tablesize) in sg_build_sgat() argument
1859 sg_build_indirect(Sg_scatter_hold * schp, Sg_fd * sfp, int buff_size) in sg_build_indirect() argument
1862 int sg_tablesize = sfp->parentdp->sg_tablesize; in sg_build_indirect()
1872 SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sfp->parentdp, in sg_build_indirect()
1877 mx_sc_elems = sg_build_sgat(schp, sfp, sg_tablesize); in sg_build_indirect()
1911 SCSI_LOG_TIMEOUT(5, sg_printk(KERN_INFO, sfp->parentdp, in sg_build_indirect()
1918 SCSI_LOG_TIMEOUT(5, sg_printk(KERN_INFO, sfp->parentdp, in sg_build_indirect()
1937 sg_remove_scat(Sg_fd * sfp, Sg_scatter_hold * schp) in sg_remove_scat() argument
1939 SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sfp->parentdp, in sg_remove_scat()
1947 sg_printk(KERN_INFO, sfp->parentdp, in sg_remove_scat()
1993 sg_build_reserve(Sg_fd * sfp, int req_size) in sg_build_reserve() argument
1995 Sg_scatter_hold *schp = &sfp->reserve; in sg_build_reserve()
1997 SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sfp->parentdp, in sg_build_reserve()
2002 if (0 == sg_build_indirect(schp, sfp, req_size)) in sg_build_reserve()
2005 sg_remove_scat(sfp, schp); in sg_build_reserve()
2011 sg_link_reserve(Sg_fd * sfp, Sg_request * srp, int size) in sg_link_reserve() argument
2014 Sg_scatter_hold *rsv_schp = &sfp->reserve; in sg_link_reserve()
2018 SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sfp->parentdp, in sg_link_reserve()
2037 SCSI_LOG_TIMEOUT(1, sg_printk(KERN_INFO, sfp->parentdp, in sg_link_reserve()
2042 sg_unlink_reserve(Sg_fd * sfp, Sg_request * srp) in sg_unlink_reserve() argument
2056 sfp->res_in_use = 0; in sg_unlink_reserve()
2060 sg_get_rq_mark(Sg_fd * sfp, int pack_id, bool *busy) in sg_get_rq_mark() argument
2066 write_lock_irqsave(&sfp->rq_list_lock, iflags); in sg_get_rq_mark()
2067 list_for_each_entry(resp, &sfp->rq_list, entry) { in sg_get_rq_mark()
2077 write_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_get_rq_mark()
2084 write_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_get_rq_mark()
2090 sg_add_request(Sg_fd * sfp) in sg_add_request() argument
2094 Sg_request *rp = sfp->req_arr; in sg_add_request()
2096 write_lock_irqsave(&sfp->rq_list_lock, iflags); in sg_add_request()
2097 if (!list_empty(&sfp->rq_list)) { in sg_add_request()
2098 if (!sfp->cmd_q) in sg_add_request()
2109 rp->parentfp = sfp; in sg_add_request()
2111 list_add_tail(&rp->entry, &sfp->rq_list); in sg_add_request()
2112 write_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_add_request()
2115 write_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_add_request()
2121 sg_remove_request(Sg_fd * sfp, Sg_request * srp) in sg_remove_request() argument
2126 if (!sfp || !srp || list_empty(&sfp->rq_list)) in sg_remove_request()
2128 write_lock_irqsave(&sfp->rq_list_lock, iflags); in sg_remove_request()
2134 write_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_remove_request()
2141 if (unlikely(atomic_read(&sfp->parentdp->detaching))) in sg_remove_request()
2142 wake_up_interruptible_all(&sfp->read_wait); in sg_remove_request()
2150 Sg_fd *sfp; in sg_add_sfp() local
2154 sfp = kzalloc(sizeof(*sfp), GFP_ATOMIC | __GFP_NOWARN); in sg_add_sfp()
2155 if (!sfp) in sg_add_sfp()
2158 init_waitqueue_head(&sfp->read_wait); in sg_add_sfp()
2159 rwlock_init(&sfp->rq_list_lock); in sg_add_sfp()
2160 INIT_LIST_HEAD(&sfp->rq_list); in sg_add_sfp()
2161 kref_init(&sfp->f_ref); in sg_add_sfp()
2162 mutex_init(&sfp->f_mutex); in sg_add_sfp()
2163 sfp->timeout = SG_DEFAULT_TIMEOUT; in sg_add_sfp()
2164 sfp->timeout_user = SG_DEFAULT_TIMEOUT_USER; in sg_add_sfp()
2165 sfp->force_packid = SG_DEF_FORCE_PACK_ID; in sg_add_sfp()
2166 sfp->cmd_q = SG_DEF_COMMAND_Q; in sg_add_sfp()
2167 sfp->keep_orphan = SG_DEF_KEEP_ORPHAN; in sg_add_sfp()
2168 sfp->parentdp = sdp; in sg_add_sfp()
2172 kfree(sfp); in sg_add_sfp()
2175 list_add_tail(&sfp->sfd_siblings, &sdp->sfds); in sg_add_sfp()
2178 "sg_add_sfp: sfp=0x%p\n", sfp)); in sg_add_sfp()
2184 sg_build_reserve(sfp, bufflen); in sg_add_sfp()
2187 sfp->reserve.bufflen, in sg_add_sfp()
2188 sfp->reserve.k_use_sg)); in sg_add_sfp()
2192 return sfp; in sg_add_sfp()
2198 struct sg_fd *sfp = container_of(work, struct sg_fd, ew.work); in sg_remove_sfp_usercontext() local
2199 struct sg_device *sdp = sfp->parentdp; in sg_remove_sfp_usercontext()
2204 write_lock_irqsave(&sfp->rq_list_lock, iflags); in sg_remove_sfp_usercontext()
2205 while (!list_empty(&sfp->rq_list)) { in sg_remove_sfp_usercontext()
2206 srp = list_first_entry(&sfp->rq_list, Sg_request, entry); in sg_remove_sfp_usercontext()
2211 write_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_remove_sfp_usercontext()
2213 if (sfp->reserve.bufflen > 0) { in sg_remove_sfp_usercontext()
2216 (int) sfp->reserve.bufflen, in sg_remove_sfp_usercontext()
2217 (int) sfp->reserve.k_use_sg)); in sg_remove_sfp_usercontext()
2218 sg_remove_scat(sfp, &sfp->reserve); in sg_remove_sfp_usercontext()
2222 "sg_remove_sfp: sfp=0x%p\n", sfp)); in sg_remove_sfp_usercontext()
2223 kfree(sfp); in sg_remove_sfp_usercontext()
2233 struct sg_fd *sfp = container_of(kref, struct sg_fd, f_ref); in sg_remove_sfp() local
2234 struct sg_device *sdp = sfp->parentdp; in sg_remove_sfp()
2238 list_del(&sfp->sfd_siblings); in sg_remove_sfp()
2241 INIT_WORK(&sfp->ew.work, sg_remove_sfp_usercontext); in sg_remove_sfp()
2242 schedule_work(&sfp->ew.work); in sg_remove_sfp()