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1/* SPDX-License-Identifier: GPL-2.0 */
2/* Copyright(c) 2013 - 2018 Intel Corporation. */
3
4#ifndef _I40E_ADMINQ_H_
5#define _I40E_ADMINQ_H_
6
7#include <linux/mutex.h>
8#include "i40e_alloc.h"
9#include "i40e_adminq_cmd.h"
10
11#define I40E_ADMINQ_DESC(R, i) \
12 (&(((struct i40e_aq_desc *)((R).desc_buf.va))[i]))
13
14#define I40E_ADMINQ_DESC_ALIGNMENT 4096
15
16struct i40e_adminq_ring {
17 struct i40e_virt_mem dma_head; /* space for dma structures */
18 struct i40e_dma_mem desc_buf; /* descriptor ring memory */
19 struct i40e_virt_mem cmd_buf; /* command buffer memory */
20
21 union {
22 struct i40e_dma_mem *asq_bi;
23 struct i40e_dma_mem *arq_bi;
24 } r;
25
26 u16 count; /* Number of descriptors */
27 u16 rx_buf_len; /* Admin Receive Queue buffer length */
28
29 /* used for interrupt processing */
30 u16 next_to_use;
31 u16 next_to_clean;
32};
33
34/* ASQ transaction details */
35struct i40e_asq_cmd_details {
36 void *callback; /* cast from type I40E_ADMINQ_CALLBACK */
37 u64 cookie;
38 u16 flags_ena;
39 u16 flags_dis;
40 bool async;
41 bool postpone;
42 struct i40e_aq_desc *wb_desc;
43};
44
45#define I40E_ADMINQ_DETAILS(R, i) \
46 (&(((struct i40e_asq_cmd_details *)((R).cmd_buf.va))[i]))
47
48/* ARQ event information */
49struct i40e_arq_event_info {
50 struct i40e_aq_desc desc;
51 u16 msg_len;
52 u16 buf_len;
53 u8 *msg_buf;
54};
55
56/* Admin Queue information */
57struct i40e_adminq_info {
58 struct i40e_adminq_ring arq; /* receive queue */
59 struct i40e_adminq_ring asq; /* send queue */
60 u32 asq_cmd_timeout; /* send queue cmd write back timeout*/
61 u16 num_arq_entries; /* receive queue depth */
62 u16 num_asq_entries; /* send queue depth */
63 u16 arq_buf_size; /* receive queue buffer size */
64 u16 asq_buf_size; /* send queue buffer size */
65 u16 fw_maj_ver; /* firmware major version */
66 u16 fw_min_ver; /* firmware minor version */
67 u32 fw_build; /* firmware build number */
68 u16 api_maj_ver; /* api major version */
69 u16 api_min_ver; /* api minor version */
70
71 struct mutex asq_mutex; /* Send queue lock */
72 struct mutex arq_mutex; /* Receive queue lock */
73
74 /* last status values on send and receive queues */
75 enum i40e_admin_queue_err asq_last_status;
76 enum i40e_admin_queue_err arq_last_status;
77};
78
79/**
80 * i40e_aq_rc_to_posix - convert errors to user-land codes
81 * @aq_ret: AdminQ handler error code can override aq_rc
82 * @aq_rc: AdminQ firmware error code to convert
83 **/
84static inline int i40e_aq_rc_to_posix(int aq_ret, int aq_rc)
85{
86 int aq_to_posix[] = {
87 0, /* I40E_AQ_RC_OK */
88 -EPERM, /* I40E_AQ_RC_EPERM */
89 -ENOENT, /* I40E_AQ_RC_ENOENT */
90 -ESRCH, /* I40E_AQ_RC_ESRCH */
91 -EINTR, /* I40E_AQ_RC_EINTR */
92 -EIO, /* I40E_AQ_RC_EIO */
93 -ENXIO, /* I40E_AQ_RC_ENXIO */
94 -E2BIG, /* I40E_AQ_RC_E2BIG */
95 -EAGAIN, /* I40E_AQ_RC_EAGAIN */
96 -ENOMEM, /* I40E_AQ_RC_ENOMEM */
97 -EACCES, /* I40E_AQ_RC_EACCES */
98 -EFAULT, /* I40E_AQ_RC_EFAULT */
99 -EBUSY, /* I40E_AQ_RC_EBUSY */
100 -EEXIST, /* I40E_AQ_RC_EEXIST */
101 -EINVAL, /* I40E_AQ_RC_EINVAL */
102 -ENOTTY, /* I40E_AQ_RC_ENOTTY */
103 -ENOSPC, /* I40E_AQ_RC_ENOSPC */
104 -ENOSYS, /* I40E_AQ_RC_ENOSYS */
105 -ERANGE, /* I40E_AQ_RC_ERANGE */
106 -EPIPE, /* I40E_AQ_RC_EFLUSHED */
107 -ESPIPE, /* I40E_AQ_RC_BAD_ADDR */
108 -EROFS, /* I40E_AQ_RC_EMODE */
109 -EFBIG, /* I40E_AQ_RC_EFBIG */
110 };
111
112 /* aq_rc is invalid if AQ timed out */
113 if (aq_ret == -EIO)
114 return -EAGAIN;
115
116 if (!((u32)aq_rc < (sizeof(aq_to_posix) / sizeof((aq_to_posix)[0]))))
117 return -ERANGE;
118
119 return aq_to_posix[aq_rc];
120}
121
122/* general information */
123#define I40E_AQ_LARGE_BUF 512
124#define I40E_ASQ_CMD_TIMEOUT 250000 /* usecs */
125
126void i40e_fill_default_direct_cmd_desc(struct i40e_aq_desc *desc,
127 u16 opcode);
128
129#endif /* _I40E_ADMINQ_H_ */
1/*******************************************************************************
2 *
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2014 Intel Corporation.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program. If not, see <http://www.gnu.org/licenses/>.
17 *
18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
20 *
21 * Contact Information:
22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *
25 ******************************************************************************/
26
27#ifndef _I40E_ADMINQ_H_
28#define _I40E_ADMINQ_H_
29
30#include "i40e_osdep.h"
31#include "i40e_status.h"
32#include "i40e_adminq_cmd.h"
33
34#define I40E_ADMINQ_DESC(R, i) \
35 (&(((struct i40e_aq_desc *)((R).desc_buf.va))[i]))
36
37#define I40E_ADMINQ_DESC_ALIGNMENT 4096
38
39struct i40e_adminq_ring {
40 struct i40e_virt_mem dma_head; /* space for dma structures */
41 struct i40e_dma_mem desc_buf; /* descriptor ring memory */
42 struct i40e_virt_mem cmd_buf; /* command buffer memory */
43
44 union {
45 struct i40e_dma_mem *asq_bi;
46 struct i40e_dma_mem *arq_bi;
47 } r;
48
49 u16 count; /* Number of descriptors */
50 u16 rx_buf_len; /* Admin Receive Queue buffer length */
51
52 /* used for interrupt processing */
53 u16 next_to_use;
54 u16 next_to_clean;
55
56 /* used for queue tracking */
57 u32 head;
58 u32 tail;
59 u32 len;
60 u32 bah;
61 u32 bal;
62};
63
64/* ASQ transaction details */
65struct i40e_asq_cmd_details {
66 void *callback; /* cast from type I40E_ADMINQ_CALLBACK */
67 u64 cookie;
68 u16 flags_ena;
69 u16 flags_dis;
70 bool async;
71 bool postpone;
72 struct i40e_aq_desc *wb_desc;
73};
74
75#define I40E_ADMINQ_DETAILS(R, i) \
76 (&(((struct i40e_asq_cmd_details *)((R).cmd_buf.va))[i]))
77
78/* ARQ event information */
79struct i40e_arq_event_info {
80 struct i40e_aq_desc desc;
81 u16 msg_len;
82 u16 buf_len;
83 u8 *msg_buf;
84};
85
86/* Admin Queue information */
87struct i40e_adminq_info {
88 struct i40e_adminq_ring arq; /* receive queue */
89 struct i40e_adminq_ring asq; /* send queue */
90 u32 asq_cmd_timeout; /* send queue cmd write back timeout*/
91 u16 num_arq_entries; /* receive queue depth */
92 u16 num_asq_entries; /* send queue depth */
93 u16 arq_buf_size; /* receive queue buffer size */
94 u16 asq_buf_size; /* send queue buffer size */
95 u16 fw_maj_ver; /* firmware major version */
96 u16 fw_min_ver; /* firmware minor version */
97 u32 fw_build; /* firmware build number */
98 u16 api_maj_ver; /* api major version */
99 u16 api_min_ver; /* api minor version */
100
101 struct mutex asq_mutex; /* Send queue lock */
102 struct mutex arq_mutex; /* Receive queue lock */
103
104 /* last status values on send and receive queues */
105 enum i40e_admin_queue_err asq_last_status;
106 enum i40e_admin_queue_err arq_last_status;
107};
108
109/**
110 * i40e_aq_rc_to_posix - convert errors to user-land codes
111 * aq_ret: AdminQ handler error code can override aq_rc
112 * aq_rc: AdminQ firmware error code to convert
113 **/
114static inline int i40e_aq_rc_to_posix(int aq_ret, int aq_rc)
115{
116 int aq_to_posix[] = {
117 0, /* I40E_AQ_RC_OK */
118 -EPERM, /* I40E_AQ_RC_EPERM */
119 -ENOENT, /* I40E_AQ_RC_ENOENT */
120 -ESRCH, /* I40E_AQ_RC_ESRCH */
121 -EINTR, /* I40E_AQ_RC_EINTR */
122 -EIO, /* I40E_AQ_RC_EIO */
123 -ENXIO, /* I40E_AQ_RC_ENXIO */
124 -E2BIG, /* I40E_AQ_RC_E2BIG */
125 -EAGAIN, /* I40E_AQ_RC_EAGAIN */
126 -ENOMEM, /* I40E_AQ_RC_ENOMEM */
127 -EACCES, /* I40E_AQ_RC_EACCES */
128 -EFAULT, /* I40E_AQ_RC_EFAULT */
129 -EBUSY, /* I40E_AQ_RC_EBUSY */
130 -EEXIST, /* I40E_AQ_RC_EEXIST */
131 -EINVAL, /* I40E_AQ_RC_EINVAL */
132 -ENOTTY, /* I40E_AQ_RC_ENOTTY */
133 -ENOSPC, /* I40E_AQ_RC_ENOSPC */
134 -ENOSYS, /* I40E_AQ_RC_ENOSYS */
135 -ERANGE, /* I40E_AQ_RC_ERANGE */
136 -EPIPE, /* I40E_AQ_RC_EFLUSHED */
137 -ESPIPE, /* I40E_AQ_RC_BAD_ADDR */
138 -EROFS, /* I40E_AQ_RC_EMODE */
139 -EFBIG, /* I40E_AQ_RC_EFBIG */
140 };
141
142 /* aq_rc is invalid if AQ timed out */
143 if (aq_ret == I40E_ERR_ADMIN_QUEUE_TIMEOUT)
144 return -EAGAIN;
145
146 if (!((u32)aq_rc < (sizeof(aq_to_posix) / sizeof((aq_to_posix)[0]))))
147 return -ERANGE;
148
149 return aq_to_posix[aq_rc];
150}
151
152/* general information */
153#define I40E_AQ_LARGE_BUF 512
154#define I40E_ASQ_CMD_TIMEOUT 250 /* msecs */
155
156void i40e_fill_default_direct_cmd_desc(struct i40e_aq_desc *desc,
157 u16 opcode);
158
159#endif /* _I40E_ADMINQ_H_ */