xref: /illumos-gate/usr/src/uts/common/sys/rds.h (revision 6a634c9d)
1c0dd49bdSEiji Ota /*
216e76cddSagiri  * This file contains definitions used in OFED defined user/kernel
316e76cddSagiri  * interfaces. These are imported from the OFED header <linux/rds.h>. Oracle
416e76cddSagiri  * elects to have and use the contents of <linux/rds.h> under and governed
516e76cddSagiri  * by the OpenIB.org BSD license (see below for full license text). However,
616e76cddSagiri  * the following notice accompanied the original version of this file:
7c0dd49bdSEiji Ota  */
8c0dd49bdSEiji Ota /*
9c0dd49bdSEiji Ota  * Copyright (c) 2008 Oracle.  All rights reserved.
10c0dd49bdSEiji Ota  *
11c0dd49bdSEiji Ota  * This software is available to you under a choice of one of two
12c0dd49bdSEiji Ota  * licenses.  You may choose to be licensed under the terms of the GNU
13c0dd49bdSEiji Ota  * General Public License (GPL) Version 2, available from the file
14c0dd49bdSEiji Ota  * COPYING in the main directory of this source tree, or the
15c0dd49bdSEiji Ota  * OpenIB.org BSD license below:
16c0dd49bdSEiji Ota  *
17c0dd49bdSEiji Ota  *     Redistribution and use in source and binary forms, with or
18c0dd49bdSEiji Ota  *     without modification, are permitted provided that the following
19c0dd49bdSEiji Ota  *     conditions are met:
20c0dd49bdSEiji Ota  *
21c0dd49bdSEiji Ota  *      - Redistributions of source code must retain the above
22c0dd49bdSEiji Ota  *        copyright notice, this list of conditions and the following
23c0dd49bdSEiji Ota  *        disclaimer.
24c0dd49bdSEiji Ota  *
25c0dd49bdSEiji Ota  *      - Redistributions in binary form must reproduce the above
26c0dd49bdSEiji Ota  *        copyright notice, this list of conditions and the following
27c0dd49bdSEiji Ota  *        disclaimer in the documentation and/or other materials
28c0dd49bdSEiji Ota  *        provided with the distribution.
29c0dd49bdSEiji Ota  *
30c0dd49bdSEiji Ota  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
31c0dd49bdSEiji Ota  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
32c0dd49bdSEiji Ota  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
33c0dd49bdSEiji Ota  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
34c0dd49bdSEiji Ota  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
35c0dd49bdSEiji Ota  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
36c0dd49bdSEiji Ota  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
37c0dd49bdSEiji Ota  * SOFTWARE.
38c0dd49bdSEiji Ota  *
39c0dd49bdSEiji Ota  */
40*fe817b60SEiji Ota #ifndef _SYS_RDS_H
41*fe817b60SEiji Ota #define	_SYS_RDS_H
42c0dd49bdSEiji Ota 
43*fe817b60SEiji Ota #ifdef __cplusplus
44*fe817b60SEiji Ota extern "C" {
45*fe817b60SEiji Ota #endif
46c0dd49bdSEiji Ota 
47*fe817b60SEiji Ota #if !(defined(__SVR4) && defined(__sun))
48*fe817b60SEiji Ota #include <linux/types.h>
49*fe817b60SEiji Ota #else
50c0dd49bdSEiji Ota #include <sys/types.h>
515d5562f5SEiji Ota #include <sys/socket.h>
52*fe817b60SEiji Ota #endif
53c0dd49bdSEiji Ota 
54*fe817b60SEiji Ota /*
55*fe817b60SEiji Ota  * These sparse annotated types shouldn't be in any user
56*fe817b60SEiji Ota  * visible header file. We should clean this up rather
57*fe817b60SEiji Ota  * than kludging around them.
58*fe817b60SEiji Ota  */
59*fe817b60SEiji Ota #if !(defined(__SVR4) && defined(__sun))
60*fe817b60SEiji Ota #ifndef __KERNEL__
61*fe817b60SEiji Ota #define	__be16	u_int16_t
62*fe817b60SEiji Ota #define	__be32	u_int32_t
63*fe817b60SEiji Ota #define	__be64	u_int64_t
64*fe817b60SEiji Ota #endif
65*fe817b60SEiji Ota #else
66*fe817b60SEiji Ota #define	u_int8_t	uint8_t
67*fe817b60SEiji Ota #define	u_int16_t	uint16_t
68*fe817b60SEiji Ota #define	u_int32_t	uint32_t
69*fe817b60SEiji Ota #define	u_int64_t	uint64_t
70c0dd49bdSEiji Ota #endif
71c0dd49bdSEiji Ota 
72c0dd49bdSEiji Ota #define	RDS_IB_ABI_VERSION		0x301
73c0dd49bdSEiji Ota 
74*fe817b60SEiji Ota #define	AF_RDS	AF_INET_OFFLOAD
75*fe817b60SEiji Ota #define	PF_RDS	AF_INET_OFFLOAD
76*fe817b60SEiji Ota #define	SOL_RDS	272
77c0dd49bdSEiji Ota 
78c0dd49bdSEiji Ota /*
79c0dd49bdSEiji Ota  * setsockopt/getsockopt for SOL_RDS
80c0dd49bdSEiji Ota  */
81*fe817b60SEiji Ota #define	RDS_CANCEL_SENT_TO	1
82*fe817b60SEiji Ota #define	RDS_GET_MR			2
83*fe817b60SEiji Ota #define	RDS_FREE_MR			3
84c0dd49bdSEiji Ota /* deprecated: RDS_BARRIER 4 */
85*fe817b60SEiji Ota #define	RDS_RECVERR			5
86*fe817b60SEiji Ota #define	RDS_CONG_MONITOR		6
87*fe817b60SEiji Ota #define	RDS_GET_MR_FOR_DEST		7
88*fe817b60SEiji Ota 
89c0dd49bdSEiji Ota 
90c0dd49bdSEiji Ota /*
91c0dd49bdSEiji Ota  * Control message types for SOL_RDS.
92c0dd49bdSEiji Ota  *
93*fe817b60SEiji Ota  * CMSG_RDMA_ARGS (sendmsg)
94c0dd49bdSEiji Ota  *	Request a RDMA transfer to/from the specified
95c0dd49bdSEiji Ota  *	memory ranges.
96*fe817b60SEiji Ota  *	The cmsg_data is a struct rds_rdma_args.
97c0dd49bdSEiji Ota  * RDS_CMSG_RDMA_DEST (recvmsg, sendmsg)
98c0dd49bdSEiji Ota  *	Kernel informs application about intended
99c0dd49bdSEiji Ota  *	source/destination of a RDMA transfer
100c0dd49bdSEiji Ota  * RDS_CMSG_RDMA_MAP (sendmsg)
101c0dd49bdSEiji Ota  *	Application asks kernel to map the given
102c0dd49bdSEiji Ota  *	memory range into a IB MR, and send the
103c0dd49bdSEiji Ota  *	R_Key along in an RDS extension header.
104*fe817b60SEiji Ota  *	The cmsg_data is a struct rds_get_mr_args,
105c0dd49bdSEiji Ota  *	the same as for the GET_MR setsockopt.
106c0dd49bdSEiji Ota  * RDS_CMSG_RDMA_STATUS (recvmsg)
107c0dd49bdSEiji Ota  *	Returns the status of a completed RDMA operation.
108c0dd49bdSEiji Ota  */
109*fe817b60SEiji Ota #define	RDS_CMSG_RDMA_ARGS		1
110*fe817b60SEiji Ota #define	RDS_CMSG_RDMA_DEST		2
111*fe817b60SEiji Ota #define	RDS_CMSG_RDMA_MAP		3
112*fe817b60SEiji Ota #define	RDS_CMSG_RDMA_STATUS		4
113*fe817b60SEiji Ota #define	RDS_CMSG_CONG_UPDATE		5
114*fe817b60SEiji Ota 
115*fe817b60SEiji Ota #define	RDS_INFO_FIRST			10000
116*fe817b60SEiji Ota #define	RDS_INFO_COUNTERS		10000
117*fe817b60SEiji Ota #define	RDS_INFO_CONNECTIONS		10001
118c0dd49bdSEiji Ota /* 10002 aka RDS_INFO_FLOWS is deprecated */
119*fe817b60SEiji Ota #define	RDS_INFO_SEND_MESSAGES		10003
120*fe817b60SEiji Ota #define	RDS_INFO_RETRANS_MESSAGES	10004
121*fe817b60SEiji Ota #define	RDS_INFO_RECV_MESSAGES		10005
122*fe817b60SEiji Ota #define	RDS_INFO_SOCKETS		10006
123*fe817b60SEiji Ota #define	RDS_INFO_TCP_SOCKETS		10007
124*fe817b60SEiji Ota #define	RDS_INFO_IB_CONNECTIONS		10008
125*fe817b60SEiji Ota #define	RDS_INFO_CONNECTION_STATS	10009
126*fe817b60SEiji Ota #define	RDS_INFO_IWARP_CONNECTIONS	10010
127*fe817b60SEiji Ota #define	RDS_INFO_LAST			10010
128*fe817b60SEiji Ota 
129*fe817b60SEiji Ota #if defined(__SVR4) && defined(__sun)
130b27516f5Sagiri struct rds_info_arg {
131b27516f5Sagiri 	uint64_t	lenp;
132b27516f5Sagiri 	uint64_t	datap;
133b27516f5Sagiri };
134*fe817b60SEiji Ota #endif
135b27516f5Sagiri 
136c0dd49bdSEiji Ota #ifndef __lock_lint
137c0dd49bdSEiji Ota #pragma pack(1)
138*fe817b60SEiji Ota struct rds_info_counter {
139*fe817b60SEiji Ota 	u_int8_t	name[32];
140*fe817b60SEiji Ota 	u_int64_t	value;
141c0dd49bdSEiji Ota } __attribute__((packed));
142c0dd49bdSEiji Ota #pragma pack()
143c0dd49bdSEiji Ota #else
144*fe817b60SEiji Ota struct rds_info_counter {
145*fe817b60SEiji Ota 	u_int8_t	name[32];
146*fe817b60SEiji Ota 	u_int64_t	value;
147c0dd49bdSEiji Ota };
148c0dd49bdSEiji Ota #endif
149c0dd49bdSEiji Ota 
150*fe817b60SEiji Ota #define	RDS_INFO_CONNECTION_FLAG_SENDING	0x01
151*fe817b60SEiji Ota #define	RDS_INFO_CONNECTION_FLAG_CONNECTING	0x02
152*fe817b60SEiji Ota #define	RDS_INFO_CONNECTION_FLAG_CONNECTED	0x04
153c0dd49bdSEiji Ota 
154cadbfdc3SEiji Ota #define	TRANSNAMSIZ	16
155cadbfdc3SEiji Ota 
156c0dd49bdSEiji Ota #ifndef __lock_lint
157c0dd49bdSEiji Ota #pragma pack(1)
158*fe817b60SEiji Ota struct rds_info_connection {
159*fe817b60SEiji Ota 	u_int64_t	next_tx_seq;
160*fe817b60SEiji Ota 	u_int64_t	next_rx_seq;
161*fe817b60SEiji Ota 	u_int32_t	laddr;
162*fe817b60SEiji Ota 	u_int32_t	faddr;
163*fe817b60SEiji Ota 	u_int8_t	transport[TRANSNAMSIZ];		/* null term ascii */
164*fe817b60SEiji Ota 	u_int8_t	flags;
165c0dd49bdSEiji Ota } __attribute__((packed));
166c0dd49bdSEiji Ota #pragma pack()
167c0dd49bdSEiji Ota #else
168*fe817b60SEiji Ota struct rds_info_connection {
169*fe817b60SEiji Ota 	u_int64_t	next_tx_seq;
170*fe817b60SEiji Ota 	u_int64_t	next_rx_seq;
171*fe817b60SEiji Ota 	u_int32_t	laddr;
172*fe817b60SEiji Ota 	u_int32_t	faddr;
173*fe817b60SEiji Ota 	u_int8_t	transport[TRANSNAMSIZ];		/* null term ascii */
174*fe817b60SEiji Ota 	u_int8_t	flags;
175c0dd49bdSEiji Ota };
176c0dd49bdSEiji Ota #endif
177c0dd49bdSEiji Ota 
178c0dd49bdSEiji Ota #ifndef __lock_lint
179c0dd49bdSEiji Ota #pragma pack(1)
180*fe817b60SEiji Ota struct rds_info_flow {
181*fe817b60SEiji Ota 	u_int32_t	laddr;
182*fe817b60SEiji Ota 	u_int32_t	faddr;
183*fe817b60SEiji Ota 	u_int32_t	bytes;
184*fe817b60SEiji Ota 	u_int16_t	lport;
185*fe817b60SEiji Ota 	u_int16_t	fport;
186c0dd49bdSEiji Ota } __attribute__((packed));
187c0dd49bdSEiji Ota #pragma pack()
188c0dd49bdSEiji Ota #else
189*fe817b60SEiji Ota struct rds_info_flow {
190*fe817b60SEiji Ota 	u_int32_t	laddr;
191*fe817b60SEiji Ota 	u_int32_t	faddr;
192*fe817b60SEiji Ota 	u_int32_t	bytes;
193*fe817b60SEiji Ota 	u_int16_t	lport;
194*fe817b60SEiji Ota 	u_int16_t	fport;
195c0dd49bdSEiji Ota };
196c0dd49bdSEiji Ota #endif
197c0dd49bdSEiji Ota 
198*fe817b60SEiji Ota #define	RDS_INFO_MESSAGE_FLAG_ACK		0x01
199*fe817b60SEiji Ota #define	RDS_INFO_MESSAGE_FLAG_FAST_ACK		0x02
200c0dd49bdSEiji Ota 
201c0dd49bdSEiji Ota #ifndef __lock_lint
202c0dd49bdSEiji Ota #pragma pack(1)
203*fe817b60SEiji Ota struct rds_info_message {
204*fe817b60SEiji Ota 	u_int64_t	seq;
205*fe817b60SEiji Ota 	u_int32_t	len;
206*fe817b60SEiji Ota 	u_int32_t	laddr;
207*fe817b60SEiji Ota 	u_int32_t	faddr;
208*fe817b60SEiji Ota 	u_int16_t	lport;
209*fe817b60SEiji Ota 	u_int16_t	fport;
210*fe817b60SEiji Ota 	u_int8_t	flags;
211c0dd49bdSEiji Ota } __attribute__((packed));
212c0dd49bdSEiji Ota #pragma pack()
213c0dd49bdSEiji Ota #else
214*fe817b60SEiji Ota struct rds_info_message {
215*fe817b60SEiji Ota 	u_int64_t	seq;
216*fe817b60SEiji Ota 	u_int32_t	len;
217*fe817b60SEiji Ota 	u_int32_t	laddr;
218*fe817b60SEiji Ota 	u_int32_t	faddr;
219*fe817b60SEiji Ota 	u_int16_t	lport;
220*fe817b60SEiji Ota 	u_int16_t	fport;
221*fe817b60SEiji Ota 	u_int8_t	flags;
222c0dd49bdSEiji Ota };
223c0dd49bdSEiji Ota #endif
224c0dd49bdSEiji Ota 
225c0dd49bdSEiji Ota #ifndef __lock_lint
226c0dd49bdSEiji Ota #pragma pack(1)
227*fe817b60SEiji Ota struct rds_info_socket {
228*fe817b60SEiji Ota 	u_int32_t	sndbuf;
229*fe817b60SEiji Ota 	u_int32_t	bound_addr;
230*fe817b60SEiji Ota 	u_int32_t	connected_addr;
231*fe817b60SEiji Ota 	u_int16_t	bound_port;
232*fe817b60SEiji Ota 	u_int16_t	connected_port;
233*fe817b60SEiji Ota 	u_int32_t	rcvbuf;
234*fe817b60SEiji Ota 	u_int64_t	inum;
235c0dd49bdSEiji Ota } __attribute__((packed));
236c0dd49bdSEiji Ota #pragma pack()
237c0dd49bdSEiji Ota #else
238*fe817b60SEiji Ota struct rds_info_socket {
239*fe817b60SEiji Ota 	u_int32_t	sndbuf;
240*fe817b60SEiji Ota 	u_int32_t	bound_addr;
241*fe817b60SEiji Ota 	u_int32_t	connected_addr;
242*fe817b60SEiji Ota 	u_int16_t	bound_port;
243*fe817b60SEiji Ota 	u_int16_t	connected_port;
244*fe817b60SEiji Ota 	u_int32_t	rcvbuf;
245*fe817b60SEiji Ota 	u_int64_t	inum;
246c0dd49bdSEiji Ota };
247c0dd49bdSEiji Ota #endif
248c0dd49bdSEiji Ota 
249c0dd49bdSEiji Ota #ifndef __lock_lint
250c0dd49bdSEiji Ota #pragma pack(1)
251*fe817b60SEiji Ota struct rds_info_tcp_socket {
252*fe817b60SEiji Ota 	u_int32_t	local_addr;
253*fe817b60SEiji Ota 	u_int16_t	local_port;
254*fe817b60SEiji Ota 	u_int32_t	peer_addr;
255*fe817b60SEiji Ota 	u_int16_t	peer_port;
256*fe817b60SEiji Ota 	u_int64_t	hdr_rem;
257*fe817b60SEiji Ota 	u_int64_t	data_rem;
258*fe817b60SEiji Ota 	u_int32_t	last_sent_nxt;
259*fe817b60SEiji Ota 	u_int32_t	last_expected_una;
260*fe817b60SEiji Ota 	u_int32_t	last_seen_una;
261c0dd49bdSEiji Ota } __attribute__((packed));
262c0dd49bdSEiji Ota #pragma pack()
263c0dd49bdSEiji Ota #else
264*fe817b60SEiji Ota struct rds_info_tcp_socket {
265*fe817b60SEiji Ota 	u_int32_t	local_addr;
266*fe817b60SEiji Ota 	u_int16_t	local_port;
267*fe817b60SEiji Ota 	u_int32_t	peer_addr;
268*fe817b60SEiji Ota 	u_int16_t	peer_port;
269*fe817b60SEiji Ota 	u_int64_t	hdr_rem;
270*fe817b60SEiji Ota 	u_int64_t	data_rem;
271*fe817b60SEiji Ota 	u_int32_t	last_sent_nxt;
272*fe817b60SEiji Ota 	u_int32_t	last_expected_una;
273*fe817b60SEiji Ota 	u_int32_t	last_seen_una;
274*fe817b60SEiji Ota } __attribute__((packed));
275c0dd49bdSEiji Ota };
276c0dd49bdSEiji Ota #endif
277c0dd49bdSEiji Ota 
278c0dd49bdSEiji Ota #define	RDS_IB_GID_LEN	16
279*fe817b60SEiji Ota struct rds_info_rdma_connection {
280*fe817b60SEiji Ota 	u_int32_t	src_addr;
281*fe817b60SEiji Ota 	u_int32_t	dst_addr;
282c0dd49bdSEiji Ota 	uint8_t		src_gid[RDS_IB_GID_LEN];
283c0dd49bdSEiji Ota 	uint8_t		dst_gid[RDS_IB_GID_LEN];
284c0dd49bdSEiji Ota 
285c0dd49bdSEiji Ota 	uint32_t	max_send_wr;
286c0dd49bdSEiji Ota 	uint32_t	max_recv_wr;
287c0dd49bdSEiji Ota 	uint32_t	max_send_sge;
288c0dd49bdSEiji Ota 	uint32_t	rdma_mr_max;
289c0dd49bdSEiji Ota 	uint32_t	rdma_mr_size;
290c0dd49bdSEiji Ota };
291c0dd49bdSEiji Ota 
292cadbfdc3SEiji Ota /*
293cadbfdc3SEiji Ota  * Congestion monitoring.
294cadbfdc3SEiji Ota  * Congestion control in RDS happens at the host connection
295cadbfdc3SEiji Ota  * level by exchanging a bitmap marking congested ports.
296cadbfdc3SEiji Ota  * By default, a process sleeping in poll() is always woken
297cadbfdc3SEiji Ota  * up when the congestion map is updated.
298cadbfdc3SEiji Ota  * With explicit monitoring, an application can have more
299cadbfdc3SEiji Ota  * fine-grained control.
300cadbfdc3SEiji Ota  * The application installs a 64bit mask value in the socket,
301cadbfdc3SEiji Ota  * where each bit corresponds to a group of ports.
302cadbfdc3SEiji Ota  * When a congestion update arrives, RDS checks the set of
303cadbfdc3SEiji Ota  * ports that are now uncongested against the list bit mask
304cadbfdc3SEiji Ota  * installed in the socket, and if they overlap, we queue a
305cadbfdc3SEiji Ota  * cong_notification on the socket.
306cadbfdc3SEiji Ota  *
307cadbfdc3SEiji Ota  * To install the congestion monitor bitmask, use RDS_CONG_MONITOR
308cadbfdc3SEiji Ota  * with the 64bit mask.
309cadbfdc3SEiji Ota  * Congestion updates are received via RDS_CMSG_CONG_UPDATE
310cadbfdc3SEiji Ota  * control messages.
311cadbfdc3SEiji Ota  *
312cadbfdc3SEiji Ota  * The correspondence between bits and ports is
313cadbfdc3SEiji Ota  *	1 << (portnum % 64)
314cadbfdc3SEiji Ota  */
315*fe817b60SEiji Ota #define	RDS_CONG_MONITOR_SIZE	64
316*fe817b60SEiji Ota #define	RDS_CONG_MONITOR_BIT(port)  \
317*fe817b60SEiji Ota 	(((unsigned int) port) % RDS_CONG_MONITOR_SIZE)
318*fe817b60SEiji Ota #define	RDS_CONG_MONITOR_MASK(port) (1ULL << RDS_CONG_MONITOR_BIT(port))
319cadbfdc3SEiji Ota 
320cadbfdc3SEiji Ota /*
321cadbfdc3SEiji Ota  * RDMA related types
322cadbfdc3SEiji Ota  */
323cadbfdc3SEiji Ota 
324cadbfdc3SEiji Ota /*
325cadbfdc3SEiji Ota  * This encapsulates a remote memory location.
326cadbfdc3SEiji Ota  * In the current implementation, it contains the R_Key
327cadbfdc3SEiji Ota  * of the remote memory region, and the offset into it
328cadbfdc3SEiji Ota  * (so that the application does not have to worry about
329cadbfdc3SEiji Ota  * alignment).
330cadbfdc3SEiji Ota  */
331*fe817b60SEiji Ota typedef u_int64_t	rds_rdma_cookie_t;
332cadbfdc3SEiji Ota 
333*fe817b60SEiji Ota struct rds_iovec {
334*fe817b60SEiji Ota 	u_int64_t	addr;
335*fe817b60SEiji Ota 	u_int64_t	bytes;
336cadbfdc3SEiji Ota };
337cadbfdc3SEiji Ota 
338*fe817b60SEiji Ota struct rds_get_mr_args {
339*fe817b60SEiji Ota 	struct rds_iovec vec;
340*fe817b60SEiji Ota 	u_int64_t	cookie_addr;
341cadbfdc3SEiji Ota 	uint64_t	flags;
342cadbfdc3SEiji Ota };
343cadbfdc3SEiji Ota 
344*fe817b60SEiji Ota struct rds_get_mr_for_dest_args {
345*fe817b60SEiji Ota 	struct sockaddr_storage dest_addr;
346*fe817b60SEiji Ota 	struct rds_iovec	vec;
347*fe817b60SEiji Ota 	u_int64_t		cookie_addr;
348cadbfdc3SEiji Ota 	uint64_t		flags;
349cadbfdc3SEiji Ota };
350cadbfdc3SEiji Ota 
351*fe817b60SEiji Ota 
352*fe817b60SEiji Ota struct rds_free_mr_args {
353*fe817b60SEiji Ota 	rds_rdma_cookie_t cookie;
354*fe817b60SEiji Ota 	u_int64_t	flags;
355cadbfdc3SEiji Ota };
356cadbfdc3SEiji Ota 
357*fe817b60SEiji Ota struct rds_rdma_args {
358*fe817b60SEiji Ota 	rds_rdma_cookie_t cookie;
359*fe817b60SEiji Ota 	struct rds_iovec remote_vec;
360*fe817b60SEiji Ota 	u_int64_t	local_vec_addr;
361*fe817b60SEiji Ota 	u_int64_t	nr_local;
362*fe817b60SEiji Ota 	u_int64_t	flags;
363*fe817b60SEiji Ota 	u_int64_t	user_token;
364cadbfdc3SEiji Ota };
365cadbfdc3SEiji Ota 
366*fe817b60SEiji Ota struct rds_rdma_notify {
367*fe817b60SEiji Ota 	u_int64_t	user_token;
368cadbfdc3SEiji Ota 	int32_t		status;
369cadbfdc3SEiji Ota };
370cadbfdc3SEiji Ota 
371*fe817b60SEiji Ota #define	RDS_RDMA_SUCCESS	0
372*fe817b60SEiji Ota #define	RDS_RDMA_REMOTE_ERROR	1
373*fe817b60SEiji Ota #define	RDS_RDMA_CANCELED	2
374*fe817b60SEiji Ota #define	RDS_RDMA_DROPPED	3
375*fe817b60SEiji Ota #define	RDS_RDMA_OTHER_ERROR	4
376cadbfdc3SEiji Ota 
377cadbfdc3SEiji Ota /*
378cadbfdc3SEiji Ota  * Common set of flags for all RDMA related structs
379cadbfdc3SEiji Ota  */
380*fe817b60SEiji Ota #define	RDS_RDMA_READWRITE	0x0001
381*fe817b60SEiji Ota #define	RDS_RDMA_FENCE		0x0002	/* use FENCE for immediate send */
382*fe817b60SEiji Ota #define	RDS_RDMA_INVALIDATE	0x0004	/* invalidate R_Key after freeing MR */
383*fe817b60SEiji Ota #define	RDS_RDMA_USE_ONCE	0x0008	/* free MR after use */
384*fe817b60SEiji Ota #define	RDS_RDMA_DONTWAIT	0x0010	/* Don't wait in SET_BARRIER */
385*fe817b60SEiji Ota #define	RDS_RDMA_NOTIFY_ME	0x0020	/* Notify when operation completes */
386cadbfdc3SEiji Ota 
387c0dd49bdSEiji Ota #ifdef	__cplusplus
388c0dd49bdSEiji Ota }
389c0dd49bdSEiji Ota #endif
390c0dd49bdSEiji Ota 
391*fe817b60SEiji Ota #endif /* _SYS_RDS_H */
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