1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2003-2008 Takahiro Hirofuchi
9 #include <linux/list.h>
10 #include <linux/slab.h>
11 #include <linux/spinlock.h>
12 #include <linux/types.h>
13 #include <linux/usb.h>
14 #include <linux/wait.h>
16 #define STUB_BUSID_OTHER 0
17 #define STUB_BUSID_REMOV 1
18 #define STUB_BUSID_ADDED 2
19 #define STUB_BUSID_ALLOC 3
22 struct usb_device *udev;
24 struct usbip_device ud;
28 * stub_priv preserves private data of each urb.
29 * It is allocated as stub_priv_cache and assigned to urb->context.
31 * stub_priv is always linked to any one of 3 lists;
32 * priv_init: linked to this until the comletion of a urb.
33 * priv_tx : linked to this after the completion of a urb.
34 * priv_free: linked to this after the sending of the result.
36 * Any of these list operations should be locked by priv_lock.
39 struct list_head priv_init;
40 struct list_head priv_tx;
41 struct list_head priv_free;
43 /* see comments for unlinking in stub_rx.c */
44 struct list_head unlink_tx;
45 struct list_head unlink_free;
47 wait_queue_head_t tx_waitq;
50 /* private data into urb->priv */
53 struct list_head list;
54 struct stub_device *sdev;
56 struct scatterlist *sgl;
66 struct list_head list;
70 /* same as SYSFS_BUS_ID_SIZE */
74 char name[BUSID_SIZE];
77 struct stub_device *sdev;
78 struct usb_device *udev;
80 spinlock_t busid_lock;
83 /* stub_priv is allocated from stub_priv_cache */
84 extern struct kmem_cache *stub_priv_cache;
87 extern struct usb_device_driver stub_driver;
90 struct bus_id_priv *get_busid_priv(const char *busid);
91 void put_busid_priv(struct bus_id_priv *bid);
92 int del_match_busid(char *busid);
93 void stub_free_priv_and_urb(struct stub_priv *priv);
94 void stub_device_cleanup_urbs(struct stub_device *sdev);
97 int stub_rx_loop(void *data);
100 void stub_enqueue_ret_unlink(struct stub_device *sdev, __u32 seqnum,
102 void stub_complete(struct urb *urb);
103 int stub_tx_loop(void *data);
105 #endif /* __USBIP_STUB_H */