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rapidio/mport_cdev: fix uapi type definitions

Fix problems in uapi definitions reported by Gabriel Laskar: (see https://lkml.org/lkml/2016/4/5/205 for details) - move public header file rio_mport_cdev.h to include/uapi/linux directory - change types in data structures passed as IOCTL parameters - improve parameter checking in some IOCTL service routines

Alexandre Bounine committed 10 years ago

Commit 4e1016d1 parent 4550c4e2 files · +139 −120Browse files

Showing the changes to include/linux (1 of 2 files). Show all

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include/linux/rio_mport_cdev.h+0−271
@@ -1,271 +0,0 @@
1−/*
2− * Copyright (c) 2015-2016, Integrated Device Technology Inc.
3− * Copyright (c) 2015, Prodrive Technologies
4− * Copyright (c) 2015, Texas Instruments Incorporated
5− * Copyright (c) 2015, RapidIO Trade Association
6− * All rights reserved.
7− *
8− * This software is available to you under a choice of one of two licenses.
9− * You may choose to be licensed under the terms of the GNU General Public
10− * License(GPL) Version 2, or the BSD-3 Clause license below:
11− *
12− * Redistribution and use in source and binary forms, with or without
13− * modification, are permitted provided that the following conditions are met:
14− *
15− * 1. Redistributions of source code must retain the above copyright notice,
16− * this list of conditions and the following disclaimer.
17− *
18− * 2. Redistributions in binary form must reproduce the above copyright notice,
19− * this list of conditions and the following disclaimer in the documentation
20− * and/or other materials provided with the distribution.
21− *
22− * 3. Neither the name of the copyright holder nor the names of its contributors
23− * may be used to endorse or promote products derived from this software without
24− * specific prior written permission.
25− *
26− * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
27− * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
28− * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29− * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
30− * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
31− * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
32− * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
33− * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
34− * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
35− * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
36− * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37− */
38−
39−#ifndef _RIO_MPORT_CDEV_H_
40−#define _RIO_MPORT_CDEV_H_
41−
42−#ifndef __user
43−#define __user
44−#endif
45−
46−struct rio_mport_maint_io {
47− uint32_t rioid; /* destID of remote device */
48− uint32_t hopcount; /* hopcount to remote device */
49− uint32_t offset; /* offset in register space */
50− size_t length; /* length in bytes */
51− void __user *buffer; /* data buffer */
52−};
53−
54−/*
55− * Definitions for RapidIO data transfers:
56− * - memory mapped (MAPPED)
57− * - packet generation from memory (TRANSFER)
58− */
59−#define RIO_TRANSFER_MODE_MAPPED (1 << 0)
60−#define RIO_TRANSFER_MODE_TRANSFER (1 << 1)
61−#define RIO_CAP_DBL_SEND (1 << 2)
62−#define RIO_CAP_DBL_RECV (1 << 3)
63−#define RIO_CAP_PW_SEND (1 << 4)
64−#define RIO_CAP_PW_RECV (1 << 5)
65−#define RIO_CAP_MAP_OUTB (1 << 6)
66−#define RIO_CAP_MAP_INB (1 << 7)
67−
68−struct rio_mport_properties {
69− uint16_t hdid;
70− uint8_t id; /* Physical port ID */
71− uint8_t index;
72− uint32_t flags;
73− uint32_t sys_size; /* Default addressing size */
74− uint8_t port_ok;
75− uint8_t link_speed;
76− uint8_t link_width;
77− uint32_t dma_max_sge;
78− uint32_t dma_max_size;
79− uint32_t dma_align;
80− uint32_t transfer_mode; /* Default transfer mode */
81− uint32_t cap_sys_size; /* Capable system sizes */
82− uint32_t cap_addr_size; /* Capable addressing sizes */
83− uint32_t cap_transfer_mode; /* Capable transfer modes */
84− uint32_t cap_mport; /* Mport capabilities */
85−};
86−
87−/*
88− * Definitions for RapidIO events;
89− * - incoming port-writes
90− * - incoming doorbells
91− */
92−#define RIO_DOORBELL (1 << 0)
93−#define RIO_PORTWRITE (1 << 1)
94−
95−struct rio_doorbell {
96− uint32_t rioid;
97− uint16_t payload;
98−};
99−
100−struct rio_doorbell_filter {
101− uint32_t rioid; /* 0xffffffff to match all ids */
102− uint16_t low;
103− uint16_t high;
104−};
105−
106−
107−struct rio_portwrite {
108− uint32_t payload[16];
109−};
110−
111−struct rio_pw_filter {
112− uint32_t mask;
113− uint32_t low;
114− uint32_t high;
115−};
116−
117−/* RapidIO base address for inbound requests set to value defined below
118− * indicates that no specific RIO-to-local address translation is requested
119− * and driver should use direct (one-to-one) address mapping.
120−*/
121−#define RIO_MAP_ANY_ADDR (uint64_t)(~((uint64_t) 0))
122−
123−struct rio_mmap {
124− uint32_t rioid;
125− uint64_t rio_addr;
126− uint64_t length;
127− uint64_t handle;
128− void *address;
129−};
130−
131−struct rio_dma_mem {
132− uint64_t length; /* length of DMA memory */
133− uint64_t dma_handle; /* handle associated with this memory */
134− void *buffer; /* pointer to this memory */
135−};
136−
137−
138−struct rio_event {
139− unsigned int header; /* event type RIO_DOORBELL or RIO_PORTWRITE */
140− union {
141− struct rio_doorbell doorbell; /* header for RIO_DOORBELL */
142− struct rio_portwrite portwrite; /* header for RIO_PORTWRITE */
143− } u;
144−};
145−
146−enum rio_transfer_sync {
147− RIO_TRANSFER_SYNC, /* synchronous transfer */
148− RIO_TRANSFER_ASYNC, /* asynchronous transfer */
149− RIO_TRANSFER_FAF, /* fire-and-forget transfer */
150−};
151−
152−enum rio_transfer_dir {
153− RIO_TRANSFER_DIR_READ, /* Read operation */
154− RIO_TRANSFER_DIR_WRITE, /* Write operation */
155−};
156−
157−/*
158− * RapidIO data exchange transactions are lists of individual transfers. Each
159− * transfer exchanges data between two RapidIO devices by remote direct memory
160− * access and has its own completion code.
161− *
162− * The RapidIO specification defines four types of data exchange requests:
163− * NREAD, NWRITE, SWRITE and NWRITE_R. The RapidIO DMA channel interface allows
164− * to specify the required type of write operation or combination of them when
165− * only the last data packet requires response.
166− *
167− * NREAD: read up to 256 bytes from remote device memory into local memory
168− * NWRITE: write up to 256 bytes from local memory to remote device memory
169− * without confirmation
170− * SWRITE: as NWRITE, but all addresses and payloads must be 64-bit aligned
171− * NWRITE_R: as NWRITE, but expect acknowledgment from remote device.
172− *
173− * The default exchange is chosen from NREAD and any of the WRITE modes as the
174− * driver sees fit. For write requests the user can explicitly choose between
175− * any of the write modes for each transaction.
176− */
177−enum rio_exchange {
178− RIO_EXCHANGE_DEFAULT, /* Default method */
179− RIO_EXCHANGE_NWRITE, /* All packets using NWRITE */
180− RIO_EXCHANGE_SWRITE, /* All packets using SWRITE */
181− RIO_EXCHANGE_NWRITE_R, /* Last packet NWRITE_R, others NWRITE */
182− RIO_EXCHANGE_SWRITE_R, /* Last packet NWRITE_R, others SWRITE */
183− RIO_EXCHANGE_NWRITE_R_ALL, /* All packets using NWRITE_R */
184−};
185−
186−struct rio_transfer_io {
187− uint32_t rioid; /* Target destID */
188− uint64_t rio_addr; /* Address in target's RIO mem space */
189− enum rio_exchange method; /* Data exchange method */
190− void __user *loc_addr;
191− uint64_t handle;
192− uint64_t offset; /* Offset in buffer */
193− uint64_t length; /* Length in bytes */
194− uint32_t completion_code; /* Completion code for this transfer */
195−};
196−
197−struct rio_transaction {
198− uint32_t transfer_mode; /* Data transfer mode */
199− enum rio_transfer_sync sync; /* Synchronization method */
200− enum rio_transfer_dir dir; /* Transfer direction */
201− size_t count; /* Number of transfers */
202− struct rio_transfer_io __user *block; /* Array of <count> transfers */
203−};
204−
205−struct rio_async_tx_wait {
206− uint32_t token; /* DMA transaction ID token */
207− uint32_t timeout; /* Wait timeout in msec, if 0 use default TO */
208−};
209−
210−#define RIO_MAX_DEVNAME_SZ 20
211−
212−struct rio_rdev_info {
213− uint32_t destid;
214− uint8_t hopcount;
215− uint32_t comptag;
216− char name[RIO_MAX_DEVNAME_SZ + 1];
217−};
218−
219−/* Driver IOCTL codes */
220−#define RIO_MPORT_DRV_MAGIC 'm'
221−
222−#define RIO_MPORT_MAINT_HDID_SET \
223− _IOW(RIO_MPORT_DRV_MAGIC, 1, uint16_t)
224−#define RIO_MPORT_MAINT_COMPTAG_SET \
225− _IOW(RIO_MPORT_DRV_MAGIC, 2, uint32_t)
226−#define RIO_MPORT_MAINT_PORT_IDX_GET \
227− _IOR(RIO_MPORT_DRV_MAGIC, 3, uint32_t)
228−#define RIO_MPORT_GET_PROPERTIES \
229− _IOR(RIO_MPORT_DRV_MAGIC, 4, struct rio_mport_properties)
230−#define RIO_MPORT_MAINT_READ_LOCAL \
231− _IOR(RIO_MPORT_DRV_MAGIC, 5, struct rio_mport_maint_io)
232−#define RIO_MPORT_MAINT_WRITE_LOCAL \
233− _IOW(RIO_MPORT_DRV_MAGIC, 6, struct rio_mport_maint_io)
234−#define RIO_MPORT_MAINT_READ_REMOTE \
235− _IOR(RIO_MPORT_DRV_MAGIC, 7, struct rio_mport_maint_io)
236−#define RIO_MPORT_MAINT_WRITE_REMOTE \
237− _IOW(RIO_MPORT_DRV_MAGIC, 8, struct rio_mport_maint_io)
238−#define RIO_ENABLE_DOORBELL_RANGE \
239− _IOW(RIO_MPORT_DRV_MAGIC, 9, struct rio_doorbell_filter)
240−#define RIO_DISABLE_DOORBELL_RANGE \
241− _IOW(RIO_MPORT_DRV_MAGIC, 10, struct rio_doorbell_filter)
242−#define RIO_ENABLE_PORTWRITE_RANGE \
243− _IOW(RIO_MPORT_DRV_MAGIC, 11, struct rio_pw_filter)
244−#define RIO_DISABLE_PORTWRITE_RANGE \
245− _IOW(RIO_MPORT_DRV_MAGIC, 12, struct rio_pw_filter)
246−#define RIO_SET_EVENT_MASK \
247− _IOW(RIO_MPORT_DRV_MAGIC, 13, unsigned int)
248−#define RIO_GET_EVENT_MASK \
249− _IOR(RIO_MPORT_DRV_MAGIC, 14, unsigned int)
250−#define RIO_MAP_OUTBOUND \
251− _IOWR(RIO_MPORT_DRV_MAGIC, 15, struct rio_mmap)
252−#define RIO_UNMAP_OUTBOUND \
253− _IOW(RIO_MPORT_DRV_MAGIC, 16, struct rio_mmap)
254−#define RIO_MAP_INBOUND \
255− _IOWR(RIO_MPORT_DRV_MAGIC, 17, struct rio_mmap)
256−#define RIO_UNMAP_INBOUND \
257− _IOW(RIO_MPORT_DRV_MAGIC, 18, uint64_t)
258−#define RIO_ALLOC_DMA \
259− _IOWR(RIO_MPORT_DRV_MAGIC, 19, struct rio_dma_mem)
260−#define RIO_FREE_DMA \
261− _IOW(RIO_MPORT_DRV_MAGIC, 20, uint64_t)
262−#define RIO_TRANSFER \
263− _IOWR(RIO_MPORT_DRV_MAGIC, 21, struct rio_transaction)
264−#define RIO_WAIT_FOR_ASYNC \
265− _IOW(RIO_MPORT_DRV_MAGIC, 22, struct rio_async_tx_wait)
266−#define RIO_DEV_ADD \
267− _IOW(RIO_MPORT_DRV_MAGIC, 23, struct rio_rdev_info)
268−#define RIO_DEV_DEL \
269− _IOW(RIO_MPORT_DRV_MAGIC, 24, struct rio_rdev_info)
270−
271−#endif /* _RIO_MPORT_CDEV_H_ */

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