Lines Matching full:sfp
178 static int sg_build_indirect(Sg_scatter_hold * schp, Sg_fd * sfp, int buff_size);
179 static ssize_t sg_new_read(Sg_fd * sfp, char __user *buf, size_t count,
181 static ssize_t sg_new_write(Sg_fd *sfp, struct file *file,
184 static int sg_common_write(Sg_fd * sfp, Sg_request * srp,
187 static void sg_remove_scat(Sg_fd * sfp, Sg_scatter_hold * schp);
188 static void sg_build_reserve(Sg_fd * sfp, int req_size);
189 static void sg_link_reserve(Sg_fd * sfp, Sg_request * srp, int size);
190 static void sg_unlink_reserve(Sg_fd * sfp, Sg_request * srp);
193 static Sg_request *sg_get_rq_mark(Sg_fd * sfp, int pack_id);
194 static Sg_request *sg_add_request(Sg_fd * sfp);
195 static int sg_remove_request(Sg_fd * sfp, Sg_request * srp);
237 struct sg_fd *sfp = filp->private_data; in sg_allow_access() local
239 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
459 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_read()
464 if (sfp->force_packid) in sg_read()
469 srp = sg_get_rq_mark(sfp, req_pack_id); in sg_read()
475 retval = wait_event_interruptible(sfp->read_wait, in sg_read()
477 (srp = sg_get_rq_mark(sfp, req_pack_id)))); in sg_read()
485 return sg_new_read(sfp, buf, count, srp); in sg_read()
551 sg_remove_request(sfp, srp); in sg_read()
559 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()
819 sg_remove_request(sfp, srp); in sg_common_write()
831 kref_get(&sfp->f_ref); /* sg_rq_end_io() does kref_put(). */ in sg_common_write()
837 static int srp_done(Sg_fd *sfp, Sg_request *srp) in srp_done() argument
842 read_lock_irqsave(&sfp->rq_list_lock, flags); in srp_done()
844 read_unlock_irqrestore(&sfp->rq_list_lock, flags); in srp_done()
858 sg_fill_request_table(Sg_fd *sfp, sg_req_info_t *rinfo) in sg_fill_request_table() argument
865 list_for_each_entry(srp, &sfp->rq_list, entry) { in sg_fill_request_table()
918 sg_ioctl_common(struct file *filp, Sg_device *sdp, Sg_fd *sfp, in sg_ioctl_common() argument
936 result = sg_new_write(sfp, filp, p, SZ_SG_IO_HDR, in sg_ioctl_common()
940 result = wait_event_interruptible(sfp->read_wait, in sg_ioctl_common()
941 (srp_done(sfp, srp) || atomic_read(&sdp->detaching))); in sg_ioctl_common()
944 write_lock_irq(&sfp->rq_list_lock); in sg_ioctl_common()
947 write_unlock_irq(&sfp->rq_list_lock); in sg_ioctl_common()
948 result = sg_new_read(sfp, p, SZ_SG_IO_HDR, srp); in sg_ioctl_common()
952 write_unlock_irq(&sfp->rq_list_lock); in sg_ioctl_common()
963 sfp->timeout_user = val; in sg_ioctl_common()
964 sfp->timeout = mult_frac(val, HZ, USER_HZ); in sg_ioctl_common()
969 return sfp->timeout_user; in sg_ioctl_common()
1001 sfp->force_packid = val ? 1 : 0; in sg_ioctl_common()
1004 read_lock_irqsave(&sfp->rq_list_lock, iflags); in sg_ioctl_common()
1005 list_for_each_entry(srp, &sfp->rq_list, entry) { in sg_ioctl_common()
1007 read_unlock_irqrestore(&sfp->rq_list_lock, in sg_ioctl_common()
1012 read_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_ioctl_common()
1015 read_lock_irqsave(&sfp->rq_list_lock, iflags); in sg_ioctl_common()
1017 list_for_each_entry(srp, &sfp->rq_list, entry) { in sg_ioctl_common()
1021 read_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_ioctl_common()
1033 mutex_lock(&sfp->f_mutex); in sg_ioctl_common()
1034 if (val != sfp->reserve.bufflen) { in sg_ioctl_common()
1035 if (sfp->mmap_called || in sg_ioctl_common()
1036 sfp->res_in_use) { in sg_ioctl_common()
1037 mutex_unlock(&sfp->f_mutex); in sg_ioctl_common()
1041 sg_remove_scat(sfp, &sfp->reserve); in sg_ioctl_common()
1042 sg_build_reserve(sfp, val); in sg_ioctl_common()
1044 mutex_unlock(&sfp->f_mutex); in sg_ioctl_common()
1047 val = min_t(int, sfp->reserve.bufflen, in sg_ioctl_common()
1054 sfp->cmd_q = val ? 1 : 0; in sg_ioctl_common()
1057 return put_user((int) sfp->cmd_q, ip); in sg_ioctl_common()
1062 sfp->keep_orphan = val; in sg_ioctl_common()
1065 return put_user((int) sfp->keep_orphan, ip); in sg_ioctl_common()
1072 sfp->next_cmd_len = (val > 0) ? val : 0; in sg_ioctl_common()
1088 read_lock_irqsave(&sfp->rq_list_lock, iflags); in sg_ioctl_common()
1089 sg_fill_request_table(sfp, rinfo); in sg_ioctl_common()
1090 read_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_ioctl_common()
1157 Sg_fd *sfp; in sg_ioctl() local
1160 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_ioctl()
1163 ret = sg_ioctl_common(filp, sdp, sfp, cmd_in, p); in sg_ioctl()
1175 Sg_fd *sfp; in sg_compat_ioctl() local
1178 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_compat_ioctl()
1181 ret = sg_ioctl_common(filp, sdp, sfp, cmd_in, p); in sg_compat_ioctl()
1194 Sg_fd *sfp; in sg_poll() local
1199 sfp = filp->private_data; in sg_poll()
1200 if (!sfp) in sg_poll()
1202 sdp = sfp->parentdp; in sg_poll()
1205 poll_wait(filp, &sfp->read_wait, wait); in sg_poll()
1206 read_lock_irqsave(&sfp->rq_list_lock, iflags); in sg_poll()
1207 list_for_each_entry(srp, &sfp->rq_list, entry) { in sg_poll()
1213 read_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_poll()
1217 else if (!sfp->cmd_q) { in sg_poll()
1231 Sg_fd *sfp; in sg_fasync() local
1233 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_fasync()
1238 return fasync_helper(fd, filp, mode, &sfp->async_qp); in sg_fasync()
1245 Sg_fd *sfp; in sg_vma_fault() local
1250 if ((NULL == vma) || (!(sfp = (Sg_fd *) vma->vm_private_data))) in sg_vma_fault()
1252 rsv_schp = &sfp->reserve; in sg_vma_fault()
1256 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sfp->parentdp, in sg_vma_fault()
1285 Sg_fd *sfp; in sg_mmap() local
1291 if ((!filp) || (!vma) || (!(sfp = (Sg_fd *) filp->private_data))) in sg_mmap()
1294 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sfp->parentdp, in sg_mmap()
1299 rsv_schp = &sfp->reserve; in sg_mmap()
1300 mutex_lock(&sfp->f_mutex); in sg_mmap()
1314 sfp->mmap_called = 1; in sg_mmap()
1316 vma->vm_private_data = sfp; in sg_mmap()
1319 mutex_unlock(&sfp->f_mutex); in sg_mmap()
1327 struct sg_fd *sfp = srp->parentfp; in sg_rq_end_io_usercontext() local
1330 sg_remove_request(sfp, srp); in sg_rq_end_io_usercontext()
1331 kref_put(&sfp->f_ref, sg_remove_sfp); in sg_rq_end_io_usercontext()
1344 Sg_fd *sfp; in sg_rq_end_io() local
1353 sfp = srp->parentfp; in sg_rq_end_io()
1354 if (WARN_ON(sfp == NULL)) in sg_rq_end_io()
1357 sdp = sfp->parentdp; in sg_rq_end_io()
1413 write_lock_irqsave(&sfp->rq_list_lock, iflags); in sg_rq_end_io()
1415 if (sfp->keep_orphan) in sg_rq_end_io()
1421 write_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_rq_end_io()
1427 wake_up_interruptible(&sfp->read_wait); in sg_rq_end_io()
1428 kill_fasync(&sfp->async_qp, SIGPOLL, POLL_IN); in sg_rq_end_io()
1429 kref_put(&sfp->f_ref, sg_remove_sfp); in sg_rq_end_io()
1624 Sg_fd *sfp; in sg_remove_device() local
1638 list_for_each_entry(sfp, &sdp->sfds, sfd_siblings) { in sg_remove_device()
1639 wake_up_interruptible_all(&sfp->read_wait); in sg_remove_device()
1640 kill_fasync(&sfp->async_qp, SIGPOLL, POLL_HUP); in sg_remove_device()
1726 Sg_fd *sfp = srp->parentfp; in sg_start_req() local
1732 Sg_scatter_hold *rsv_schp = &sfp->reserve; in sg_start_req()
1733 struct request_queue *q = sfp->parentdp->device->request_queue; in sg_start_req()
1738 SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sfp->parentdp, in sg_start_req()
1781 !sfp->parentdp->device->host->unchecked_isa_dma && in sg_start_req()
1788 mutex_lock(&sfp->f_mutex); in sg_start_req()
1790 !sfp->res_in_use) { in sg_start_req()
1791 sfp->res_in_use = 1; in sg_start_req()
1792 sg_link_reserve(sfp, srp, dxfer_len); in sg_start_req()
1794 res = -EBUSY; /* sfp->res_in_use == 1 */ in sg_start_req()
1797 mutex_unlock(&sfp->f_mutex); in sg_start_req()
1800 res = sg_build_indirect(req_schp, sfp, dxfer_len); in sg_start_req()
1802 mutex_unlock(&sfp->f_mutex); in sg_start_req()
1806 mutex_unlock(&sfp->f_mutex); in sg_start_req()
1855 Sg_fd *sfp = srp->parentfp; in sg_finish_rem_req() local
1858 SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sfp->parentdp, in sg_finish_rem_req()
1870 sg_unlink_reserve(sfp, srp); in sg_finish_rem_req()
1872 sg_remove_scat(sfp, req_schp); in sg_finish_rem_req()
1878 sg_build_sgat(Sg_scatter_hold * schp, const Sg_fd * sfp, int tablesize) in sg_build_sgat() argument
1891 sg_build_indirect(Sg_scatter_hold * schp, Sg_fd * sfp, int buff_size) in sg_build_indirect() argument
1894 int sg_tablesize = sfp->parentdp->sg_tablesize; in sg_build_indirect()
1897 struct sg_device *sdp = sfp->parentdp; in sg_build_indirect()
1905 SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sfp->parentdp, in sg_build_indirect()
1910 mx_sc_elems = sg_build_sgat(schp, sfp, sg_tablesize); in sg_build_indirect()
1947 SCSI_LOG_TIMEOUT(5, sg_printk(KERN_INFO, sfp->parentdp, in sg_build_indirect()
1954 SCSI_LOG_TIMEOUT(5, sg_printk(KERN_INFO, sfp->parentdp, in sg_build_indirect()
1973 sg_remove_scat(Sg_fd * sfp, Sg_scatter_hold * schp) in sg_remove_scat() argument
1975 SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sfp->parentdp, in sg_remove_scat()
1983 sg_printk(KERN_INFO, sfp->parentdp, in sg_remove_scat()
2029 sg_build_reserve(Sg_fd * sfp, int req_size) in sg_build_reserve() argument
2031 Sg_scatter_hold *schp = &sfp->reserve; in sg_build_reserve()
2033 SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sfp->parentdp, in sg_build_reserve()
2038 if (0 == sg_build_indirect(schp, sfp, req_size)) in sg_build_reserve()
2041 sg_remove_scat(sfp, schp); in sg_build_reserve()
2047 sg_link_reserve(Sg_fd * sfp, Sg_request * srp, int size) in sg_link_reserve() argument
2050 Sg_scatter_hold *rsv_schp = &sfp->reserve; in sg_link_reserve()
2054 SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sfp->parentdp, in sg_link_reserve()
2073 SCSI_LOG_TIMEOUT(1, sg_printk(KERN_INFO, sfp->parentdp, in sg_link_reserve()
2078 sg_unlink_reserve(Sg_fd * sfp, Sg_request * srp) in sg_unlink_reserve() argument
2092 sfp->res_in_use = 0; in sg_unlink_reserve()
2096 sg_get_rq_mark(Sg_fd * sfp, int pack_id) in sg_get_rq_mark() argument
2101 write_lock_irqsave(&sfp->rq_list_lock, iflags); in sg_get_rq_mark()
2102 list_for_each_entry(resp, &sfp->rq_list, entry) { in sg_get_rq_mark()
2107 write_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_get_rq_mark()
2111 write_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_get_rq_mark()
2117 sg_add_request(Sg_fd * sfp) in sg_add_request() argument
2121 Sg_request *rp = sfp->req_arr; in sg_add_request()
2123 write_lock_irqsave(&sfp->rq_list_lock, iflags); in sg_add_request()
2124 if (!list_empty(&sfp->rq_list)) { in sg_add_request()
2125 if (!sfp->cmd_q) in sg_add_request()
2136 rp->parentfp = sfp; in sg_add_request()
2138 list_add_tail(&rp->entry, &sfp->rq_list); in sg_add_request()
2139 write_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_add_request()
2142 write_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_add_request()
2148 sg_remove_request(Sg_fd * sfp, Sg_request * srp) in sg_remove_request() argument
2153 if (!sfp || !srp || list_empty(&sfp->rq_list)) in sg_remove_request()
2155 write_lock_irqsave(&sfp->rq_list_lock, iflags); in sg_remove_request()
2161 write_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_remove_request()
2168 Sg_fd *sfp; in sg_add_sfp() local
2172 sfp = kzalloc(sizeof(*sfp), GFP_ATOMIC | __GFP_NOWARN); in sg_add_sfp()
2173 if (!sfp) in sg_add_sfp()
2176 init_waitqueue_head(&sfp->read_wait); in sg_add_sfp()
2177 rwlock_init(&sfp->rq_list_lock); in sg_add_sfp()
2178 INIT_LIST_HEAD(&sfp->rq_list); in sg_add_sfp()
2179 kref_init(&sfp->f_ref); in sg_add_sfp()
2180 mutex_init(&sfp->f_mutex); in sg_add_sfp()
2181 sfp->timeout = SG_DEFAULT_TIMEOUT; in sg_add_sfp()
2182 sfp->timeout_user = SG_DEFAULT_TIMEOUT_USER; in sg_add_sfp()
2183 sfp->force_packid = SG_DEF_FORCE_PACK_ID; in sg_add_sfp()
2184 sfp->cmd_q = SG_DEF_COMMAND_Q; in sg_add_sfp()
2185 sfp->keep_orphan = SG_DEF_KEEP_ORPHAN; in sg_add_sfp()
2186 sfp->parentdp = sdp; in sg_add_sfp()
2190 kfree(sfp); in sg_add_sfp()
2193 list_add_tail(&sfp->sfd_siblings, &sdp->sfds); in sg_add_sfp()
2196 "sg_add_sfp: sfp=0x%p\n", sfp)); in sg_add_sfp()
2202 sg_build_reserve(sfp, bufflen); in sg_add_sfp()
2205 sfp->reserve.bufflen, in sg_add_sfp()
2206 sfp->reserve.k_use_sg)); in sg_add_sfp()
2210 return sfp; in sg_add_sfp()
2216 struct sg_fd *sfp = container_of(work, struct sg_fd, ew.work); in sg_remove_sfp_usercontext() local
2217 struct sg_device *sdp = sfp->parentdp; in sg_remove_sfp_usercontext()
2222 write_lock_irqsave(&sfp->rq_list_lock, iflags); in sg_remove_sfp_usercontext()
2223 while (!list_empty(&sfp->rq_list)) { in sg_remove_sfp_usercontext()
2224 srp = list_first_entry(&sfp->rq_list, Sg_request, entry); in sg_remove_sfp_usercontext()
2229 write_unlock_irqrestore(&sfp->rq_list_lock, iflags); in sg_remove_sfp_usercontext()
2231 if (sfp->reserve.bufflen > 0) { in sg_remove_sfp_usercontext()
2234 (int) sfp->reserve.bufflen, in sg_remove_sfp_usercontext()
2235 (int) sfp->reserve.k_use_sg)); in sg_remove_sfp_usercontext()
2236 sg_remove_scat(sfp, &sfp->reserve); in sg_remove_sfp_usercontext()
2240 "sg_remove_sfp: sfp=0x%p\n", sfp)); in sg_remove_sfp_usercontext()
2241 kfree(sfp); in sg_remove_sfp_usercontext()
2251 struct sg_fd *sfp = container_of(kref, struct sg_fd, f_ref); in sg_remove_sfp() local
2252 struct sg_device *sdp = sfp->parentdp; in sg_remove_sfp()
2256 list_del(&sfp->sfd_siblings); in sg_remove_sfp()
2259 INIT_WORK(&sfp->ew.work, sg_remove_sfp_usercontext); in sg_remove_sfp()
2260 schedule_work(&sfp->ew.work); in sg_remove_sfp()