aboutsummaryrefslogtreecommitdiffstats
path: root/include
diff options
context:
space:
mode:
authorRoland Dreier <rolandd@cisco.com>2007-05-08 21:00:38 -0400
committerRoland Dreier <rolandd@cisco.com>2007-05-08 21:00:38 -0400
commit225c7b1feef1b41170f7037a5b10a65cd8a42c54 (patch)
tree702a0a2cbba7f1c5b2949d236b4463d486204fdc /include
parent1bf66a30421ca772820f489d88c16d0c430d6a67 (diff)
IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adapters
Add an InfiniBand driver for Mellanox ConnectX adapters. Because these adapters can also be used as ethernet NICs and Fibre Channel HBAs, the driver is split into two modules: mlx4_core: Handles low-level things like device initialization and processing firmware commands. Also controls resource allocation so that the InfiniBand, ethernet and FC functions can share a device without stepping on each other. mlx4_ib: Handles InfiniBand-specific things; plugs into the InfiniBand midlayer. Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/mlx4/cmd.h178
-rw-r--r--include/linux/mlx4/cq.h123
-rw-r--r--include/linux/mlx4/device.h331
-rw-r--r--include/linux/mlx4/doorbell.h97
-rw-r--r--include/linux/mlx4/driver.h59
-rw-r--r--include/linux/mlx4/qp.h288
-rw-r--r--include/linux/mlx4/srq.h42
7 files changed, 1118 insertions, 0 deletions
diff --git a/include/linux/mlx4/cmd.h b/include/linux/mlx4/cmd.h
new file mode 100644
index 000000000000..4fb552d12f7a
--- /dev/null
+++ b/include/linux/mlx4/cmd.h
@@ -0,0 +1,178 @@
1/*
2 * Copyright (c) 2006 Cisco Systems, Inc. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33#ifndef MLX4_CMD_H
34#define MLX4_CMD_H
35
36#include <linux/dma-mapping.h>
37
38enum {
39 /* initialization and general commands */
40 MLX4_CMD_SYS_EN = 0x1,
41 MLX4_CMD_SYS_DIS = 0x2,
42 MLX4_CMD_MAP_FA = 0xfff,
43 MLX4_CMD_UNMAP_FA = 0xffe,
44 MLX4_CMD_RUN_FW = 0xff6,
45 MLX4_CMD_MOD_STAT_CFG = 0x34,
46 MLX4_CMD_QUERY_DEV_CAP = 0x3,
47 MLX4_CMD_QUERY_FW = 0x4,
48 MLX4_CMD_ENABLE_LAM = 0xff8,
49 MLX4_CMD_DISABLE_LAM = 0xff7,
50 MLX4_CMD_QUERY_DDR = 0x5,
51 MLX4_CMD_QUERY_ADAPTER = 0x6,
52 MLX4_CMD_INIT_HCA = 0x7,
53 MLX4_CMD_CLOSE_HCA = 0x8,
54 MLX4_CMD_INIT_PORT = 0x9,
55 MLX4_CMD_CLOSE_PORT = 0xa,
56 MLX4_CMD_QUERY_HCA = 0xb,
57 MLX4_CMD_SET_PORT = 0xc,
58 MLX4_CMD_ACCESS_DDR = 0x2e,
59 MLX4_CMD_MAP_ICM = 0xffa,
60 MLX4_CMD_UNMAP_ICM = 0xff9,
61 MLX4_CMD_MAP_ICM_AUX = 0xffc,
62 MLX4_CMD_UNMAP_ICM_AUX = 0xffb,
63 MLX4_CMD_SET_ICM_SIZE = 0xffd,
64
65 /* TPT commands */
66 MLX4_CMD_SW2HW_MPT = 0xd,
67 MLX4_CMD_QUERY_MPT = 0xe,
68 MLX4_CMD_HW2SW_MPT = 0xf,
69 MLX4_CMD_READ_MTT = 0x10,
70 MLX4_CMD_WRITE_MTT = 0x11,
71 MLX4_CMD_SYNC_TPT = 0x2f,
72
73 /* EQ commands */
74 MLX4_CMD_MAP_EQ = 0x12,
75 MLX4_CMD_SW2HW_EQ = 0x13,
76 MLX4_CMD_HW2SW_EQ = 0x14,
77 MLX4_CMD_QUERY_EQ = 0x15,
78
79 /* CQ commands */
80 MLX4_CMD_SW2HW_CQ = 0x16,
81 MLX4_CMD_HW2SW_CQ = 0x17,
82 MLX4_CMD_QUERY_CQ = 0x18,
83 MLX4_CMD_RESIZE_CQ = 0x2c,
84
85 /* SRQ commands */
86 MLX4_CMD_SW2HW_SRQ = 0x35,
87 MLX4_CMD_HW2SW_SRQ = 0x36,
88 MLX4_CMD_QUERY_SRQ = 0x37,
89 MLX4_CMD_ARM_SRQ = 0x40,
90
91 /* QP/EE commands */
92 MLX4_CMD_RST2INIT_QP = 0x19,
93 MLX4_CMD_INIT2RTR_QP = 0x1a,
94 MLX4_CMD_RTR2RTS_QP = 0x1b,
95 MLX4_CMD_RTS2RTS_QP = 0x1c,
96 MLX4_CMD_SQERR2RTS_QP = 0x1d,
97 MLX4_CMD_2ERR_QP = 0x1e,
98 MLX4_CMD_RTS2SQD_QP = 0x1f,
99 MLX4_CMD_SQD2SQD_QP = 0x38,
100 MLX4_CMD_SQD2RTS_QP = 0x20,
101 MLX4_CMD_2RST_QP = 0x21,
102 MLX4_CMD_QUERY_QP = 0x22,
103 MLX4_CMD_INIT2INIT_QP = 0x2d,
104 MLX4_CMD_SUSPEND_QP = 0x32,
105 MLX4_CMD_UNSUSPEND_QP = 0x33,
106 /* special QP and management commands */
107 MLX4_CMD_CONF_SPECIAL_QP = 0x23,
108 MLX4_CMD_MAD_IFC = 0x24,
109
110 /* multicast commands */
111 MLX4_CMD_READ_MCG = 0x25,
112 MLX4_CMD_WRITE_MCG = 0x26,
113 MLX4_CMD_MGID_HASH = 0x27,
114
115 /* miscellaneous commands */
116 MLX4_CMD_DIAG_RPRT = 0x30,
117 MLX4_CMD_NOP = 0x31,
118
119 /* debug commands */
120 MLX4_CMD_QUERY_DEBUG_MSG = 0x2a,
121 MLX4_CMD_SET_DEBUG_MSG = 0x2b,
122};
123
124enum {
125 MLX4_CMD_TIME_CLASS_A = 10000,
126 MLX4_CMD_TIME_CLASS_B = 10000,
127 MLX4_CMD_TIME_CLASS_C = 10000,
128};
129
130enum {
131 MLX4_MAILBOX_SIZE = 4096
132};
133
134struct mlx4_dev;
135
136struct mlx4_cmd_mailbox {
137 void *buf;
138 dma_addr_t dma;
139};
140
141int __mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
142 int out_is_imm, u32 in_modifier, u8 op_modifier,
143 u16 op, unsigned long timeout);
144
145/* Invoke a command with no output parameter */
146static inline int mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u32 in_modifier,
147 u8 op_modifier, u16 op, unsigned long timeout)
148{
149 return __mlx4_cmd(dev, in_param, NULL, 0, in_modifier,
150 op_modifier, op, timeout);
151}
152
153/* Invoke a command with an output mailbox */
154static inline int mlx4_cmd_box(struct mlx4_dev *dev, u64 in_param, u64 out_param,
155 u32 in_modifier, u8 op_modifier, u16 op,
156 unsigned long timeout)
157{
158 return __mlx4_cmd(dev, in_param, &out_param, 0, in_modifier,
159 op_modifier, op, timeout);
160}
161
162/*
163 * Invoke a command with an immediate output parameter (and copy the
164 * output into the caller's out_param pointer after the command
165 * executes).
166 */
167static inline int mlx4_cmd_imm(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
168 u32 in_modifier, u8 op_modifier, u16 op,
169 unsigned long timeout)
170{
171 return __mlx4_cmd(dev, in_param, out_param, 1, in_modifier,
172 op_modifier, op, timeout);
173}
174
175struct mlx4_cmd_mailbox *mlx4_alloc_cmd_mailbox(struct mlx4_dev *dev);
176void mlx4_free_cmd_mailbox(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox);
177
178#endif /* MLX4_CMD_H */
diff --git a/include/linux/mlx4/cq.h b/include/linux/mlx4/cq.h
new file mode 100644
index 000000000000..0181e0a57cbf
--- /dev/null
+++ b/include/linux/mlx4/cq.h
@@ -0,0 +1,123 @@
1/*
2 * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33#ifndef MLX4_CQ_H
34#define MLX4_CQ_H
35
36#include <linux/types.h>
37
38#include <linux/mlx4/device.h>
39#include <linux/mlx4/doorbell.h>
40
41struct mlx4_cqe {
42 __be32 my_qpn;
43 __be32 immed_rss_invalid;
44 __be32 g_mlpath_rqpn;
45 u8 sl;
46 u8 reserved1;
47 __be16 rlid;
48 u32 reserved2;
49 __be32 byte_cnt;
50 __be16 wqe_index;
51 __be16 checksum;
52 u8 reserved3[3];
53 u8 owner_sr_opcode;
54};
55
56struct mlx4_err_cqe {
57 __be32 my_qpn;
58 u32 reserved1[5];
59 __be16 wqe_index;
60 u8 vendor_err_syndrome;
61 u8 syndrome;
62 u8 reserved2[3];
63 u8 owner_sr_opcode;
64};
65
66enum {
67 MLX4_CQE_OWNER_MASK = 0x80,
68 MLX4_CQE_IS_SEND_MASK = 0x40,
69 MLX4_CQE_OPCODE_MASK = 0x1f
70};
71
72enum {
73 MLX4_CQE_SYNDROME_LOCAL_LENGTH_ERR = 0x01,
74 MLX4_CQE_SYNDROME_LOCAL_QP_OP_ERR = 0x02,
75 MLX4_CQE_SYNDROME_LOCAL_PROT_ERR = 0x04,
76 MLX4_CQE_SYNDROME_WR_FLUSH_ERR = 0x05,
77 MLX4_CQE_SYNDROME_MW_BIND_ERR = 0x06,
78 MLX4_CQE_SYNDROME_BAD_RESP_ERR = 0x10,
79 MLX4_CQE_SYNDROME_LOCAL_ACCESS_ERR = 0x11,
80 MLX4_CQE_SYNDROME_REMOTE_INVAL_REQ_ERR = 0x12,
81 MLX4_CQE_SYNDROME_REMOTE_ACCESS_ERR = 0x13,
82 MLX4_CQE_SYNDROME_REMOTE_OP_ERR = 0x14,
83 MLX4_CQE_SYNDROME_TRANSPORT_RETRY_EXC_ERR = 0x15,
84 MLX4_CQE_SYNDROME_RNR_RETRY_EXC_ERR = 0x16,
85 MLX4_CQE_SYNDROME_REMOTE_ABORTED_ERR = 0x22,
86};
87
88static inline void mlx4_cq_arm(struct mlx4_cq *cq, u32 cmd,
89 void __iomem *uar_page,
90 spinlock_t *doorbell_lock)
91{
92 __be32 doorbell[2];
93 u32 sn;
94 u32 ci;
95
96 sn = cq->arm_sn & 3;
97 ci = cq->cons_index & 0xffffff;
98
99 *cq->arm_db = cpu_to_be32(sn << 28 | cmd | ci);
100
101 /*
102 * Make sure that the doorbell record in host memory is
103 * written before ringing the doorbell via PCI MMIO.
104 */
105 wmb();
106
107 doorbell[0] = cpu_to_be32(sn << 28 | cmd | cq->cqn);
108 doorbell[1] = cpu_to_be32(ci);
109
110 mlx4_write64(doorbell, uar_page + MLX4_CQ_DOORBELL, doorbell_lock);
111}
112
113static inline void mlx4_cq_set_ci(struct mlx4_cq *cq)
114{
115 *cq->set_ci_db = cpu_to_be32(cq->cons_index & 0xffffff);
116}
117
118enum {
119 MLX4_CQ_DB_REQ_NOT_SOL = 1 << 24,
120 MLX4_CQ_DB_REQ_NOT = 2 << 24
121};
122
123#endif /* MLX4_CQ_H */
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
new file mode 100644
index 000000000000..8c5f8fd86841
--- /dev/null
+++ b/include/linux/mlx4/device.h
@@ -0,0 +1,331 @@
1/*
2 * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33#ifndef MLX4_DEVICE_H
34#define MLX4_DEVICE_H
35
36#include <linux/pci.h>
37#include <linux/completion.h>
38#include <linux/radix-tree.h>
39
40#include <asm/atomic.h>
41
42enum {
43 MLX4_FLAG_MSI_X = 1 << 0,
44};
45
46enum {
47 MLX4_MAX_PORTS = 2
48};
49
50enum {
51 MLX4_DEV_CAP_FLAG_RC = 1 << 0,
52 MLX4_DEV_CAP_FLAG_UC = 1 << 1,
53 MLX4_DEV_CAP_FLAG_UD = 1 << 2,
54 MLX4_DEV_CAP_FLAG_SRQ = 1 << 6,
55 MLX4_DEV_CAP_FLAG_IPOIB_CSUM = 1 << 7,
56 MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR = 1 << 8,
57 MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR = 1 << 9,
58 MLX4_DEV_CAP_FLAG_MEM_WINDOW = 1 << 16,
59 MLX4_DEV_CAP_FLAG_APM = 1 << 17,
60 MLX4_DEV_CAP_FLAG_ATOMIC = 1 << 18,
61 MLX4_DEV_CAP_FLAG_RAW_MCAST = 1 << 19,
62 MLX4_DEV_CAP_FLAG_UD_AV_PORT = 1 << 20,
63 MLX4_DEV_CAP_FLAG_UD_MCAST = 1 << 21
64};
65
66enum mlx4_event {
67 MLX4_EVENT_TYPE_COMP = 0x00,
68 MLX4_EVENT_TYPE_PATH_MIG = 0x01,
69 MLX4_EVENT_TYPE_COMM_EST = 0x02,
70 MLX4_EVENT_TYPE_SQ_DRAINED = 0x03,
71 MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE = 0x13,
72 MLX4_EVENT_TYPE_SRQ_LIMIT = 0x14,
73 MLX4_EVENT_TYPE_CQ_ERROR = 0x04,
74 MLX4_EVENT_TYPE_WQ_CATAS_ERROR = 0x05,
75 MLX4_EVENT_TYPE_EEC_CATAS_ERROR = 0x06,
76 MLX4_EVENT_TYPE_PATH_MIG_FAILED = 0x07,
77 MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR = 0x10,
78 MLX4_EVENT_TYPE_WQ_ACCESS_ERROR = 0x11,
79 MLX4_EVENT_TYPE_SRQ_CATAS_ERROR = 0x12,
80 MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR = 0x08,
81 MLX4_EVENT_TYPE_PORT_CHANGE = 0x09,
82 MLX4_EVENT_TYPE_EQ_OVERFLOW = 0x0f,
83 MLX4_EVENT_TYPE_ECC_DETECT = 0x0e,
84 MLX4_EVENT_TYPE_CMD = 0x0a
85};
86
87enum {
88 MLX4_PORT_CHANGE_SUBTYPE_DOWN = 1,
89 MLX4_PORT_CHANGE_SUBTYPE_ACTIVE = 4
90};
91
92enum {
93 MLX4_PERM_LOCAL_READ = 1 << 10,
94 MLX4_PERM_LOCAL_WRITE = 1 << 11,
95 MLX4_PERM_REMOTE_READ = 1 << 12,
96 MLX4_PERM_REMOTE_WRITE = 1 << 13,
97 MLX4_PERM_ATOMIC = 1 << 14
98};
99
100enum {
101 MLX4_OPCODE_NOP = 0x00,
102 MLX4_OPCODE_SEND_INVAL = 0x01,
103 MLX4_OPCODE_RDMA_WRITE = 0x08,
104 MLX4_OPCODE_RDMA_WRITE_IMM = 0x09,
105 MLX4_OPCODE_SEND = 0x0a,
106 MLX4_OPCODE_SEND_IMM = 0x0b,
107 MLX4_OPCODE_LSO = 0x0e,
108 MLX4_OPCODE_RDMA_READ = 0x10,
109 MLX4_OPCODE_ATOMIC_CS = 0x11,
110 MLX4_OPCODE_ATOMIC_FA = 0x12,
111 MLX4_OPCODE_ATOMIC_MASK_CS = 0x14,
112 MLX4_OPCODE_ATOMIC_MASK_FA = 0x15,
113 MLX4_OPCODE_BIND_MW = 0x18,
114 MLX4_OPCODE_FMR = 0x19,
115 MLX4_OPCODE_LOCAL_INVAL = 0x1b,
116 MLX4_OPCODE_CONFIG_CMD = 0x1f,
117
118 MLX4_RECV_OPCODE_RDMA_WRITE_IMM = 0x00,
119 MLX4_RECV_OPCODE_SEND = 0x01,
120 MLX4_RECV_OPCODE_SEND_IMM = 0x02,
121 MLX4_RECV_OPCODE_SEND_INVAL = 0x03,
122
123 MLX4_CQE_OPCODE_ERROR = 0x1e,
124 MLX4_CQE_OPCODE_RESIZE = 0x16,
125};
126
127enum {
128 MLX4_STAT_RATE_OFFSET = 5
129};
130
131struct mlx4_caps {
132 u64 fw_ver;
133 int num_ports;
134 int vl_cap;
135 int mtu_cap;
136 int gid_table_len;
137 int pkey_table_len;
138 int local_ca_ack_delay;
139 int num_uars;
140 int bf_reg_size;
141 int bf_regs_per_page;
142 int max_sq_sg;
143 int max_rq_sg;
144 int num_qps;
145 int max_wqes;
146 int max_sq_desc_sz;
147 int max_rq_desc_sz;
148 int max_qp_init_rdma;
149 int max_qp_dest_rdma;
150 int reserved_qps;
151 int sqp_start;
152 int num_srqs;
153 int max_srq_wqes;
154 int max_srq_sge;
155 int reserved_srqs;
156 int num_cqs;
157 int max_cqes;
158 int reserved_cqs;
159 int num_eqs;
160 int reserved_eqs;
161 int num_mpts;
162 int num_mtt_segs;
163 int fmr_reserved_mtts;
164 int reserved_mtts;
165 int reserved_mrws;
166 int reserved_uars;
167 int num_mgms;
168 int num_amgms;
169 int reserved_mcgs;
170 int num_qp_per_mgm;
171 int num_pds;
172 int reserved_pds;
173 int mtt_entry_sz;
174 u32 page_size_cap;
175 u32 flags;
176 u16 stat_rate_support;
177 u8 port_width_cap;
178};
179
180struct mlx4_buf_list {
181 void *buf;
182 dma_addr_t map;
183};
184
185struct mlx4_buf {
186 union {
187 struct mlx4_buf_list direct;
188 struct mlx4_buf_list *page_list;
189 } u;
190 int nbufs;
191 int npages;
192 int page_shift;
193};
194
195struct mlx4_mtt {
196 u32 first_seg;
197 int order;
198 int page_shift;
199};
200
201struct mlx4_mr {
202 struct mlx4_mtt mtt;
203 u64 iova;
204 u64 size;
205 u32 key;
206 u32 pd;
207 u32 access;
208 int enabled;
209};
210
211struct mlx4_uar {
212 unsigned long pfn;
213 int index;
214};
215
216struct mlx4_cq {
217 void (*comp) (struct mlx4_cq *);
218 void (*event) (struct mlx4_cq *, enum mlx4_event);
219
220 struct mlx4_uar *uar;
221
222 u32 cons_index;
223
224 __be32 *set_ci_db;
225 __be32 *arm_db;
226 int arm_sn;
227
228 int cqn;
229
230 atomic_t refcount;
231 struct completion free;
232};
233
234struct mlx4_qp {
235 void (*event) (struct mlx4_qp *, enum mlx4_event);
236
237 int qpn;
238
239 atomic_t refcount;
240 struct completion free;
241};
242
243struct mlx4_srq {
244 void (*event) (struct mlx4_srq *, enum mlx4_event);
245
246 int srqn;
247 int max;
248 int max_gs;
249 int wqe_shift;
250
251 atomic_t refcount;
252 struct completion free;
253};
254
255struct mlx4_av {
256 __be32 port_pd;
257 u8 reserved1;
258 u8 g_slid;
259 __be16 dlid;
260 u8 reserved2;
261 u8 gid_index;
262 u8 stat_rate;
263 u8 hop_limit;
264 __be32 sl_tclass_flowlabel;
265 u8 dgid[16];
266};
267
268struct mlx4_dev {
269 struct pci_dev *pdev;
270 unsigned long flags;
271 struct mlx4_caps caps;
272 struct radix_tree_root qp_table_tree;
273};
274
275struct mlx4_init_port_param {
276 int set_guid0;
277 int set_node_guid;
278 int set_si_guid;
279 u16 mtu;
280 int port_width_cap;
281 u16 vl_cap;
282 u16 max_gid;
283 u16 max_pkey;
284 u64 guid0;
285 u64 node_guid;
286 u64 si_guid;
287};
288
289int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct,
290 struct mlx4_buf *buf);
291void mlx4_buf_free(struct mlx4_dev *dev, int size, struct mlx4_buf *buf);
292
293int mlx4_pd_alloc(struct mlx4_dev *dev, u32 *pdn);
294void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn);
295
296int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar);
297void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar);
298
299int mlx4_mtt_init(struct mlx4_dev *dev, int npages, int page_shift,
300 struct mlx4_mtt *mtt);
301void mlx4_mtt_cleanup(struct mlx4_dev *dev, struct mlx4_mtt *mtt);
302u64 mlx4_mtt_addr(struct mlx4_dev *dev, struct mlx4_mtt *mtt);
303
304int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access,
305 int npages, int page_shift, struct mlx4_mr *mr);
306void mlx4_mr_free(struct mlx4_dev *dev, struct mlx4_mr *mr);
307int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr);
308int mlx4_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
309 int start_index, int npages, u64 *page_list);
310int mlx4_buf_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
311 struct mlx4_buf *buf);
312
313int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt,
314 struct mlx4_uar *uar, u64 db_rec, struct mlx4_cq *cq);
315void mlx4_cq_free(struct mlx4_dev *dev, struct mlx4_cq *cq);
316
317int mlx4_qp_alloc(struct mlx4_dev *dev, int sqpn, struct mlx4_qp *qp);
318void mlx4_qp_free(struct mlx4_dev *dev, struct mlx4_qp *qp);
319
320int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt,
321 u64 db_rec, struct mlx4_srq *srq);
322void mlx4_srq_free(struct mlx4_dev *dev, struct mlx4_srq *srq);
323int mlx4_srq_arm(struct mlx4_dev *dev, struct mlx4_srq *srq, int limit_watermark);
324
325int mlx4_INIT_PORT(struct mlx4_dev *dev, struct mlx4_init_port_param *param, int port);
326int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port);
327
328int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]);
329int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]);
330
331#endif /* MLX4_DEVICE_H */
diff --git a/include/linux/mlx4/doorbell.h b/include/linux/mlx4/doorbell.h
new file mode 100644
index 000000000000..3f2da442d7cb
--- /dev/null
+++ b/include/linux/mlx4/doorbell.h
@@ -0,0 +1,97 @@
1/*
2 * Copyright (c) 2004 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
4 * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
5 *
6 * This software is available to you under a choice of one of two
7 * licenses. You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
18 * disclaimer.
19 *
20 * - Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials
23 * provided with the distribution.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 * SOFTWARE.
33 */
34
35#ifndef MLX4_DOORBELL_H
36#define MLX4_DOORBELL_H
37
38#include <linux/types.h>
39#include <linux/io.h>
40
41#define MLX4_SEND_DOORBELL 0x14
42#define MLX4_CQ_DOORBELL 0x20
43
44#if BITS_PER_LONG == 64
45/*
46 * Assume that we can just write a 64-bit doorbell atomically. s390
47 * actually doesn't have writeq() but S/390 systems don't even have
48 * PCI so we won't worry about it.
49 */
50
51#define MLX4_DECLARE_DOORBELL_LOCK(name)
52#define MLX4_INIT_DOORBELL_LOCK(ptr) do { } while (0)
53#define MLX4_GET_DOORBELL_LOCK(ptr) (NULL)
54
55static inline void mlx4_write64_raw(__be64 val, void __iomem *dest)
56{
57 __raw_writeq((__force u64) val, dest);
58}
59
60static inline void mlx4_write64(__be32 val[2], void __iomem *dest,
61 spinlock_t *doorbell_lock)
62{
63 __raw_writeq(*(u64 *) val, dest);
64}
65
66#else
67
68/*
69 * Just fall back to a spinlock to protect the doorbell if
70 * BITS_PER_LONG is 32 -- there's no portable way to do atomic 64-bit
71 * MMIO writes.
72 */
73
74#define MLX4_DECLARE_DOORBELL_LOCK(name) spinlock_t name;
75#define MLX4_INIT_DOORBELL_LOCK(ptr) spin_lock_init(ptr)
76#define MLX4_GET_DOORBELL_LOCK(ptr) (ptr)
77
78static inline void mlx4_write64_raw(__be64 val, void __iomem *dest)
79{
80 __raw_writel(((__force u32 *) &val)[0], dest);
81 __raw_writel(((__force u32 *) &val)[1], dest + 4);
82}
83
84static inline void mlx4_write64(__be32 val[2], void __iomem *dest,
85 spinlock_t *doorbell_lock)
86{
87 unsigned long flags;
88
89 spin_lock_irqsave(doorbell_lock, flags);
90 __raw_writel((__force u32) val[0], dest);
91 __raw_writel((__force u32) val[1], dest + 4);
92 spin_unlock_irqrestore(doorbell_lock, flags);
93}
94
95#endif
96
97#endif /* MLX4_DOORBELL_H */
diff --git a/include/linux/mlx4/driver.h b/include/linux/mlx4/driver.h
new file mode 100644
index 000000000000..1b835ca49df1
--- /dev/null
+++ b/include/linux/mlx4/driver.h
@@ -0,0 +1,59 @@
1/*
2 * Copyright (c) 2006 Cisco Systems, Inc. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33#ifndef MLX4_DRIVER_H
34#define MLX4_DRIVER_H
35
36#include <linux/device.h>
37
38struct mlx4_dev;
39
40enum mlx4_dev_event {
41 MLX4_DEV_EVENT_CATASTROPHIC_ERROR,
42 MLX4_DEV_EVENT_PORT_UP,
43 MLX4_DEV_EVENT_PORT_DOWN,
44 MLX4_DEV_EVENT_PORT_REINIT,
45};
46
47struct mlx4_interface {
48 void * (*add) (struct mlx4_dev *dev);
49 void (*remove)(struct mlx4_dev *dev, void *context);
50 void (*event) (struct mlx4_dev *dev, void *context,
51 enum mlx4_dev_event event, int subtype,
52 int port);
53 struct list_head list;
54};
55
56int mlx4_register_interface(struct mlx4_interface *intf);
57void mlx4_unregister_interface(struct mlx4_interface *intf);
58
59#endif /* MLX4_DRIVER_H */
diff --git a/include/linux/mlx4/qp.h b/include/linux/mlx4/qp.h
new file mode 100644
index 000000000000..9eeb61adf6a3
--- /dev/null
+++ b/include/linux/mlx4/qp.h
@@ -0,0 +1,288 @@
1/*
2 * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33#ifndef MLX4_QP_H
34#define MLX4_QP_H
35
36#include <linux/types.h>
37
38#include <linux/mlx4/device.h>
39
40#define MLX4_INVALID_LKEY 0x100
41
42enum mlx4_qp_optpar {
43 MLX4_QP_OPTPAR_ALT_ADDR_PATH = 1 << 0,
44 MLX4_QP_OPTPAR_RRE = 1 << 1,
45 MLX4_QP_OPTPAR_RAE = 1 << 2,
46 MLX4_QP_OPTPAR_RWE = 1 << 3,
47 MLX4_QP_OPTPAR_PKEY_INDEX = 1 << 4,
48 MLX4_QP_OPTPAR_Q_KEY = 1 << 5,
49 MLX4_QP_OPTPAR_RNR_TIMEOUT = 1 << 6,
50 MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH = 1 << 7,
51 MLX4_QP_OPTPAR_SRA_MAX = 1 << 8,
52 MLX4_QP_OPTPAR_RRA_MAX = 1 << 9,
53 MLX4_QP_OPTPAR_PM_STATE = 1 << 10,
54 MLX4_QP_OPTPAR_RETRY_COUNT = 1 << 12,
55 MLX4_QP_OPTPAR_RNR_RETRY = 1 << 13,
56 MLX4_QP_OPTPAR_ACK_TIMEOUT = 1 << 14,
57 MLX4_QP_OPTPAR_SCHED_QUEUE = 1 << 16
58};
59
60enum mlx4_qp_state {
61 MLX4_QP_STATE_RST = 0,
62 MLX4_QP_STATE_INIT = 1,
63 MLX4_QP_STATE_RTR = 2,
64 MLX4_QP_STATE_RTS = 3,
65 MLX4_QP_STATE_SQER = 4,
66 MLX4_QP_STATE_SQD = 5,
67 MLX4_QP_STATE_ERR = 6,
68 MLX4_QP_STATE_SQ_DRAINING = 7,
69 MLX4_QP_NUM_STATE
70};
71
72enum {
73 MLX4_QP_ST_RC = 0x0,
74 MLX4_QP_ST_UC = 0x1,
75 MLX4_QP_ST_RD = 0x2,
76 MLX4_QP_ST_UD = 0x3,
77 MLX4_QP_ST_MLX = 0x7
78};
79
80enum {
81 MLX4_QP_PM_MIGRATED = 0x3,
82 MLX4_QP_PM_ARMED = 0x0,
83 MLX4_QP_PM_REARM = 0x1
84};
85
86enum {
87 /* params1 */
88 MLX4_QP_BIT_SRE = 1 << 15,
89 MLX4_QP_BIT_SWE = 1 << 14,
90 MLX4_QP_BIT_SAE = 1 << 13,
91 /* params2 */
92 MLX4_QP_BIT_RRE = 1 << 15,
93 MLX4_QP_BIT_RWE = 1 << 14,
94 MLX4_QP_BIT_RAE = 1 << 13,
95 MLX4_QP_BIT_RIC = 1 << 4,
96};
97
98struct mlx4_qp_path {
99 u8 fl;
100 u8 reserved1[2];
101 u8 pkey_index;
102 u8 reserved2;
103 u8 grh_mylmc;
104 __be16 rlid;
105 u8 ackto;
106 u8 mgid_index;
107 u8 static_rate;
108 u8 hop_limit;
109 __be32 tclass_flowlabel;
110 u8 rgid[16];
111 u8 sched_queue;
112 u8 snooper_flags;
113 u8 reserved3[2];
114 u8 counter_index;
115 u8 reserved4[7];
116};
117
118struct mlx4_qp_context {
119 __be32 flags;
120 __be32 pd;
121 u8 mtu_msgmax;
122 u8 rq_size_stride;
123 u8 sq_size_stride;
124 u8 rlkey;
125 __be32 usr_page;
126 __be32 local_qpn;
127 __be32 remote_qpn;
128 struct mlx4_qp_path pri_path;
129 struct mlx4_qp_path alt_path;
130 __be32 params1;
131 u32 reserved1;
132 __be32 next_send_psn;
133 __be32 cqn_send;
134 u32 reserved2[2];
135 __be32 last_acked_psn;
136 __be32 ssn;
137 __be32 params2;
138 __be32 rnr_nextrecvpsn;
139 __be32 srcd;
140 __be32 cqn_recv;
141 __be64 db_rec_addr;
142 __be32 qkey;
143 __be32 srqn;
144 __be32 msn;
145 __be16 rq_wqe_counter;
146 __be16 sq_wqe_counter;
147 u32 reserved3[2];
148 __be32 param3;
149 __be32 nummmcpeers_basemkey;
150 u8 log_page_size;
151 u8 reserved4[2];
152 u8 mtt_base_addr_h;
153 __be32 mtt_base_addr_l;
154 u32 reserved5[10];
155};
156
157enum {
158 MLX4_WQE_CTRL_FENCE = 1 << 6,
159 MLX4_WQE_CTRL_CQ_UPDATE = 3 << 2,
160 MLX4_WQE_CTRL_SOLICITED = 1 << 1,
161};
162
163struct mlx4_wqe_ctrl_seg {
164 __be32 owner_opcode;
165 u8 reserved2[3];
166 u8 fence_size;
167 /*
168 * High 24 bits are SRC remote buffer; low 8 bits are flags:
169 * [7] SO (strong ordering)
170 * [5] TCP/UDP checksum
171 * [4] IP checksum
172 * [3:2] C (generate completion queue entry)
173 * [1] SE (solicited event)
174 */
175 __be32 srcrb_flags;
176 /*
177 * imm is immediate data for send/RDMA write w/ immediate;
178 * also invalidation key for send with invalidate; input
179 * modifier for WQEs on CCQs.
180 */
181 __be32 imm;
182};
183
184enum {
185 MLX4_WQE_MLX_VL15 = 1 << 17,
186 MLX4_WQE_MLX_SLR = 1 << 16
187};
188
189struct mlx4_wqe_mlx_seg {
190 u8 owner;
191 u8 reserved1[2];
192 u8 opcode;
193 u8 reserved2[3];
194 u8 size;
195 /*
196 * [17] VL15
197 * [16] SLR
198 * [15:12] static rate
199 * [11:8] SL
200 * [4] ICRC
201 * [3:2] C
202 * [0] FL (force loopback)
203 */
204 __be32 flags;
205 __be16 rlid;
206 u16 reserved3;
207};
208
209struct mlx4_wqe_datagram_seg {
210 __be32 av[8];
211 __be32 dqpn;
212 __be32 qkey;
213 __be32 reservd[2];
214};
215
216struct mlx4_wqe_bind_seg {
217 __be32 flags1;
218 __be32 flags2;
219 __be32 new_rkey;
220 __be32 lkey;
221 __be64 addr;
222 __be64 length;
223};
224
225struct mlx4_wqe_fmr_seg {
226 __be32 flags;
227 __be32 mem_key;
228 __be64 buf_list;
229 __be64 start_addr;
230 __be64 reg_len;
231 __be32 offset;
232 __be32 page_size;
233 u32 reserved[2];
234};
235
236struct mlx4_wqe_fmr_ext_seg {
237 u8 flags;
238 u8 reserved;
239 __be16 app_mask;
240 __be16 wire_app_tag;
241 __be16 mem_app_tag;
242 __be32 wire_ref_tag_base;
243 __be32 mem_ref_tag_base;
244};
245
246struct mlx4_wqe_local_inval_seg {
247 u8 flags;
248 u8 reserved1[3];
249 __be32 mem_key;
250 u8 reserved2[3];
251 u8 guest_id;
252 __be64 pa;
253};
254
255struct mlx4_wqe_raddr_seg {
256 __be64 raddr;
257 __be32 rkey;
258 u32 reserved;
259};
260
261struct mlx4_wqe_atomic_seg {
262 __be64 swap_add;
263 __be64 compare;
264};
265
266struct mlx4_wqe_data_seg {
267 __be32 byte_count;
268 __be32 lkey;
269 __be64 addr;
270};
271
272struct mlx4_wqe_inline_seg {
273 __be32 byte_count;
274};
275
276int mlx4_qp_modify(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
277 enum mlx4_qp_state cur_state, enum mlx4_qp_state new_state,
278 struct mlx4_qp_context *context, enum mlx4_qp_optpar optpar,
279 int sqd_event, struct mlx4_qp *qp);
280
281static inline struct mlx4_qp *__mlx4_qp_lookup(struct mlx4_dev *dev, u32 qpn)
282{
283 return radix_tree_lookup(&dev->qp_table_tree, qpn & (dev->caps.num_qps - 1));
284}
285
286void mlx4_qp_remove(struct mlx4_dev *dev, struct mlx4_qp *qp);
287
288#endif /* MLX4_QP_H */
diff --git a/include/linux/mlx4/srq.h b/include/linux/mlx4/srq.h
new file mode 100644
index 000000000000..799a0697a383
--- /dev/null
+++ b/include/linux/mlx4/srq.h
@@ -0,0 +1,42 @@
1/*
2 * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33#ifndef MLX4_SRQ_H
34#define MLX4_SRQ_H
35
36struct mlx4_wqe_srq_next_seg {
37 u16 reserved1;
38 __be16 next_wqe_index;
39 u32 reserved2[3];
40};
41
42#endif /* MLX4_SRQ_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-29 12:23:15 -0500