90 static int ipath_get_base_info(struct file *fp,  in ipath_get_base_info()  argument
93 	struct ipath_portdata *pd = port_fp(fp);  in ipath_get_base_info()
108 		master = !subport_fp(fp);  in ipath_get_base_info()
193 		unsigned slave = subport_fp(fp) - 1;  in ipath_get_base_info()
208 			PAGE_SIZE * subport_fp(fp));  in ipath_get_base_info()
211 			pd->port_rcvhdrq_size * subport_fp(fp));  in ipath_get_base_info()
215 			subport_fp(fp));  in ipath_get_base_info()
248 	kinfo->spi_subport = subport_fp(fp);  in ipath_get_base_info()
291 static int ipath_tid_update(struct ipath_portdata *pd, struct file *fp,  in ipath_tid_update()  argument
303 	unsigned subport = subport_fp(fp);  in ipath_tid_update()
330 		tid = tidcursor_fp(fp);  in ipath_tid_update()
335 		tid = tidcursor_fp(fp);  in ipath_tid_update()
482 			tidcursor_fp(fp) = tid;  in ipath_tid_update()
1246 static int ipath_mmap(struct file *fp, struct vm_area_struct *vma)  in ipath_mmap()  argument
1254 	pd = port_fp(fp);  in ipath_mmap()
1283 		   pd->port_port, subport_fp(fp));  in ipath_mmap()
1290 	ret = mmap_kvaddr(vma, pgaddr, pd, subport_fp(fp));  in ipath_mmap()
1302 	} else if (!subport_fp(fp)) {  in ipath_mmap()
1309 		unsigned slave = subport_fp(fp) - 1;  in ipath_mmap()
1369 				      struct file *fp,  in ipath_poll_urgent()  argument
1391 		poll_wait(fp, &pd->port_wait, pt);  in ipath_poll_urgent()
1398 				    struct file *fp,  in ipath_poll_next()  argument
1437 		poll_wait(fp, &pd->port_wait, pt);  in ipath_poll_next()
1443 static unsigned int ipath_poll(struct file *fp,  in ipath_poll()  argument
1449 	pd = port_fp(fp);  in ipath_poll()
1453 		pollflag = ipath_poll_urgent(pd, fp, pt);  in ipath_poll()
1455 		pollflag = ipath_poll_next(pd, fp, pt);  in ipath_poll()
1574 			  struct file *fp,  in try_alloc_port()  argument
1616 		port_fp(fp) = pd;  in try_alloc_port()
1638 static int find_free_port(int unit, struct file *fp,  in find_free_port()  argument
1655 		ret = try_alloc_port(dd, i, fp, uinfo);  in find_free_port()
1665 static int find_best_unit(struct file *fp,  in find_best_unit()  argument
1736 			ret = try_alloc_port(dd, i, fp, uinfo);  in find_best_unit()
1772 static int find_shared_port(struct file *fp,  in find_shared_port()  argument
1801 			port_fp(fp) = pd;  in find_shared_port()
1802 			subport_fp(fp) = pd->port_cnt++;  in find_shared_port()
1803 			pd->port_subpid[subport_fp(fp)] =  in find_shared_port()
1805 			tidcursor_fp(fp) = 0;  in find_shared_port()
1806 			pd->active_slaves |= 1 << subport_fp(fp);  in find_shared_port()
1810 				   subport_fp(fp),  in find_shared_port()
1822 static int ipath_open(struct inode *in, struct file *fp)  in ipath_open()  argument
1825 	fp->private_data = kzalloc(sizeof(struct ipath_filedata), GFP_KERNEL);  in ipath_open()
1826 	return fp->private_data ? 0 : -ENOMEM;  in ipath_open()
1830 static int ipath_assign_port(struct file *fp,  in ipath_assign_port()  argument
1838 	if (port_fp(fp)) {  in ipath_assign_port()
1862 	    (ret = find_shared_port(fp, uinfo))) {  in ipath_assign_port()
1868 	i_minor = iminor(file_inode(fp)) - IPATH_USER_MINOR_BASE;  in ipath_assign_port()
1870 		   (long)file_inode(fp)->i_rdev, i_minor);  in ipath_assign_port()
1873 		ret = find_free_port(i_minor - 1, fp, uinfo);  in ipath_assign_port()
1875 		ret = find_best_unit(fp, uinfo);  in ipath_assign_port()
1879 		struct ipath_filedata *fd = fp->private_data;  in ipath_assign_port()
1899 static int ipath_do_user_init(struct file *fp,  in ipath_do_user_init()  argument
1903 	struct ipath_portdata *pd = port_fp(fp);  in ipath_do_user_init()
1908 	if (subport_fp(fp)) {  in ipath_do_user_init()
2043 static int ipath_close(struct inode *in, struct file *fp)  in ipath_close()  argument
2054 		   (long)in->i_rdev, fp->private_data);  in ipath_close()
2058 	fd = fp->private_data;  in ipath_close()
2059 	fp->private_data = NULL;  in ipath_close()
2232 static ssize_t ipath_write(struct file *fp, const char __user *data,  in ipath_write()  argument
2335 	pd = port_fp(fp);  in ipath_write()
2344 		ret = ipath_assign_port(fp, &cmd.cmd.user_info);  in ipath_write()
2350 		ret = ipath_assign_port(fp, &cmd.cmd.user_info);  in ipath_write()
2355 		ret = ipath_do_user_init(fp, &cmd.cmd.user_info);  in ipath_write()
2359 			fp, (void __user *) (unsigned long)  in ipath_write()
2364 		ret = ipath_manage_rcvq(pd, subport_fp(fp), cmd.cmd.recv_ctrl);  in ipath_write()
2367 		ret = ipath_port_info(pd, subport_fp(fp),  in ipath_write()
2372 		ret = ipath_tid_update(pd, fp, &cmd.cmd.tid_info);  in ipath_write()
2375 		ret = ipath_tid_free(pd, subport_fp(fp), &cmd.cmd.tid_info);  in ipath_write()
2398 		ret = ipath_sdma_get_inflight(user_sdma_queue_fp(fp),  in ipath_write()
2404 					      user_sdma_queue_fp(fp),  in ipath_write()
2421 	struct ipath_filedata *fp = filp->private_data;  in ipath_writev()  local
2423 	struct ipath_user_sdma_queue *pq = fp->pq;  in ipath_writev()