98 static int qib_get_base_info(struct file *fp, void __user *ubase,  in qib_get_base_info()  argument
101 	struct qib_ctxtdata *rcd = ctxt_fp(fp);  in qib_get_base_info()
117 		master = !subctxt_fp(fp);  in qib_get_base_info()
206 		unsigned slave = subctxt_fp(fp) - 1;  in qib_get_base_info()
215 			cvt_kvaddr(&rcd->user_event_mask[subctxt_fp(fp)]);  in qib_get_base_info()
243 	kinfo->spi_subctxt = subctxt_fp(fp);  in qib_get_base_info()
284 static int qib_tid_update(struct qib_ctxtdata *rcd, struct file *fp,  in qib_tid_update()  argument
296 	unsigned subctxt = subctxt_fp(fp);  in qib_tid_update()
318 		tid = tidcursor_fp(fp);  in qib_tid_update()
323 		tid = tidcursor_fp(fp);  in qib_tid_update()
456 			tidcursor_fp(fp) = tid;  in qib_tid_update()
996 static int qib_mmapf(struct file *fp, struct vm_area_struct *vma)  in qib_mmapf()  argument
1004 	rcd = ctxt_fp(fp);  in qib_mmapf()
1036 	ret = mmap_kvaddr(vma, pgaddr, rcd, subctxt_fp(fp));  in qib_mmapf()
1048 	} else if (!subctxt_fp(fp)) {  in qib_mmapf()
1055 		unsigned slave = subctxt_fp(fp) - 1;  in qib_mmapf()
1103 				    struct file *fp,  in qib_poll_urgent()  argument
1109 	poll_wait(fp, &rcd->wait, pt);  in qib_poll_urgent()
1125 				  struct file *fp,  in qib_poll_next()  argument
1131 	poll_wait(fp, &rcd->wait, pt);  in qib_poll_next()
1145 static unsigned int qib_poll(struct file *fp, struct poll_table_struct *pt)  in qib_poll()  argument
1150 	rcd = ctxt_fp(fp);  in qib_poll()
1154 		pollflag = qib_poll_urgent(rcd, fp, pt);  in qib_poll()
1156 		pollflag = qib_poll_next(rcd, fp, pt);  in qib_poll()
1163 static void assign_ctxt_affinity(struct file *fp, struct qib_devdata *dd)  in assign_ctxt_affinity()  argument
1165 	struct qib_filedata *fd = fp->private_data;  in assign_ctxt_affinity()
1306 		      struct file *fp, const struct qib_user_info *uinfo)  in setup_ctxt()  argument
1308 	struct qib_filedata *fd = fp->private_data;  in setup_ctxt()
1315 	assign_ctxt_affinity(fp, dd);  in setup_ctxt()
1346 	ctxt_fp(fp) = rcd;  in setup_ctxt()
1375 static int choose_port_ctxt(struct file *fp, struct qib_devdata *dd, u32 port,  in choose_port_ctxt()  argument
1407 	ret = ppd ? setup_ctxt(ppd, ctxt, fp, uinfo) : -ENETDOWN;  in choose_port_ctxt()
1412 static int find_free_ctxt(int unit, struct file *fp,  in find_free_ctxt()  argument
1421 		ret = choose_port_ctxt(fp, dd, uinfo->spu_port, uinfo);  in find_free_ctxt()
1426 static int get_a_ctxt(struct file *fp, const struct qib_user_info *uinfo,  in get_a_ctxt()  argument
1474 			ret = choose_port_ctxt(fp, udd, port, uinfo);  in get_a_ctxt()
1482 				ret = choose_port_ctxt(fp, dd, port, uinfo);  in get_a_ctxt()
1496 static int find_shared_ctxt(struct file *fp,  in find_shared_ctxt()  argument
1526 			ctxt_fp(fp) = rcd;  in find_shared_ctxt()
1527 			subctxt_fp(fp) = rcd->cnt++;  in find_shared_ctxt()
1528 			rcd->subpid[subctxt_fp(fp)] = current->pid;  in find_shared_ctxt()
1529 			tidcursor_fp(fp) = 0;  in find_shared_ctxt()
1530 			rcd->active_slaves |= 1 << subctxt_fp(fp);  in find_shared_ctxt()
1540 static int qib_open(struct inode *in, struct file *fp)  in qib_open()  argument
1543 	fp->private_data = kzalloc(sizeof(struct qib_filedata), GFP_KERNEL);  in qib_open()
1544 	if (fp->private_data) /* no cpu affinity by default */  in qib_open()
1545 		((struct qib_filedata *)fp->private_data)->rec_cpu_num = -1;  in qib_open()
1546 	return fp->private_data ? 0 : -ENOMEM;  in qib_open()
1583 static int do_qib_user_sdma_queue_create(struct file *fp)  in do_qib_user_sdma_queue_create()  argument
1585 	struct qib_filedata *fd = fp->private_data;  in do_qib_user_sdma_queue_create()
1605 static int qib_assign_ctxt(struct file *fp, const struct qib_user_info *uinfo)  in qib_assign_ctxt()  argument
1612 	if (ctxt_fp(fp)) {  in qib_assign_ctxt()
1633 		ret = find_shared_ctxt(fp, uinfo);  in qib_assign_ctxt()
1635 			ret = do_qib_user_sdma_queue_create(fp);  in qib_assign_ctxt()
1637 				assign_ctxt_affinity(fp, (ctxt_fp(fp))->dd);  in qib_assign_ctxt()
1642 	i_minor = iminor(file_inode(fp)) - QIB_USER_MINOR_BASE;  in qib_assign_ctxt()
1644 		ret = find_free_ctxt(i_minor - 1, fp, uinfo);  in qib_assign_ctxt()
1653 				if (!find_free_ctxt(unit, fp, uinfo)) {  in qib_assign_ctxt()
1657 		ret = get_a_ctxt(fp, uinfo, alg);  in qib_assign_ctxt()
1662 		ret = do_qib_user_sdma_queue_create(fp);  in qib_assign_ctxt()
1671 static int qib_do_user_init(struct file *fp,  in qib_do_user_init()  argument
1675 	struct qib_ctxtdata *rcd = ctxt_fp(fp);  in qib_do_user_init()
1680 	if (subctxt_fp(fp)) {  in qib_do_user_init()
1812 static int qib_close(struct inode *in, struct file *fp)  in qib_close()  argument
1824 	fd = fp->private_data;  in qib_close()
1825 	fp->private_data = NULL;  in qib_close()
1903 static int qib_ctxt_info(struct file *fp, struct qib_ctxt_info __user *uinfo)  in qib_ctxt_info()  argument
1908 	struct qib_ctxtdata *rcd = ctxt_fp(fp);  in qib_ctxt_info()
1911 	fd = fp->private_data;  in qib_ctxt_info()
1917 	info.subctxt =  subctxt_fp(fp);  in qib_ctxt_info()
2058 static ssize_t qib_write(struct file *fp, const char __user *data,  in qib_write()  argument
2069 	if (WARN_ON_ONCE(!ib_safe_file_access(fp)))  in qib_write()
2173 	rcd = ctxt_fp(fp);  in qib_write()
2186 		ret = qib_assign_ctxt(fp, &cmd.cmd.user_info);  in qib_write()
2192 		ret = qib_do_user_init(fp, &cmd.cmd.user_info);  in qib_write()
2195 		ret = qib_get_base_info(fp, (void __user *) (unsigned long)  in qib_write()
2201 		ret = qib_manage_rcvq(rcd, subctxt_fp(fp), cmd.cmd.recv_ctrl);  in qib_write()
2205 		ret = qib_ctxt_info(fp, (struct qib_ctxt_info __user *)  in qib_write()
2210 		ret = qib_tid_update(rcd, fp, &cmd.cmd.tid_info);  in qib_write()
2214 		ret = qib_tid_free(rcd, subctxt_fp(fp), &cmd.cmd.tid_info);  in qib_write()
2239 		ret = qib_sdma_get_inflight(user_sdma_queue_fp(fp),  in qib_write()
2246 					    user_sdma_queue_fp(fp),  in qib_write()
2252 		ret = qib_user_event_ack(rcd, subctxt_fp(fp),  in qib_write()
2266 	struct qib_filedata *fp = iocb->ki_filp->private_data;  in qib_write_iter()  local
2268 	struct qib_user_sdma_queue *pq = fp->pq;  in qib_write_iter()