Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/* QLogic qed NIC Driver
2 * Copyright (c) 2015-2017 QLogic Corporation
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 __STORAGE_COMMON__
34#define __STORAGE_COMMON__
35
36#define NUM_OF_CMDQS_CQS (NUM_OF_GLOBAL_QUEUES / 2)
37#define BDQ_NUM_RESOURCES (4)
38
39#define BDQ_ID_RQ (0)
40#define BDQ_ID_IMM_DATA (1)
41#define BDQ_NUM_IDS (2)
42
43#define SCSI_NUM_SGES_SLOW_SGL_THR 8
44
45#define BDQ_MAX_EXTERNAL_RING_SIZE (1 << 15)
46
47struct scsi_bd {
48 struct regpair address;
49 struct regpair opaque;
50};
51
52struct scsi_bdq_ram_drv_data {
53 __le16 external_producer;
54 __le16 reserved0[3];
55};
56
57struct scsi_sge {
58 struct regpair sge_addr;
59 __le32 sge_len;
60 __le32 reserved;
61};
62
63struct scsi_cached_sges {
64 struct scsi_sge sge[4];
65};
66
67struct scsi_drv_cmdq {
68 __le16 cmdq_cons;
69 __le16 reserved0;
70 __le32 reserved1;
71};
72
73struct scsi_init_func_params {
74 __le16 num_tasks;
75 u8 log_page_size;
76 u8 debug_mode;
77 u8 reserved2[12];
78};
79
80struct scsi_init_func_queues {
81 struct regpair glbl_q_params_addr;
82 __le16 rq_buffer_size;
83 __le16 cq_num_entries;
84 __le16 cmdq_num_entries;
85 u8 bdq_resource_id;
86 u8 q_validity;
87#define SCSI_INIT_FUNC_QUEUES_RQ_VALID_MASK 0x1
88#define SCSI_INIT_FUNC_QUEUES_RQ_VALID_SHIFT 0
89#define SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID_MASK 0x1
90#define SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID_SHIFT 1
91#define SCSI_INIT_FUNC_QUEUES_CMD_VALID_MASK 0x1
92#define SCSI_INIT_FUNC_QUEUES_CMD_VALID_SHIFT 2
93#define SCSI_INIT_FUNC_QUEUES_RESERVED_VALID_MASK 0x1F
94#define SCSI_INIT_FUNC_QUEUES_RESERVED_VALID_SHIFT 3
95 u8 num_queues;
96 u8 queue_relative_offset;
97 u8 cq_sb_pi;
98 u8 cmdq_sb_pi;
99 __le16 cq_cmdq_sb_num_arr[NUM_OF_CMDQS_CQS];
100 __le16 reserved0;
101 u8 bdq_pbl_num_entries[BDQ_NUM_IDS];
102 struct regpair bdq_pbl_base_address[BDQ_NUM_IDS];
103 __le16 bdq_xoff_threshold[BDQ_NUM_IDS];
104 __le16 bdq_xon_threshold[BDQ_NUM_IDS];
105 __le16 cmdq_xoff_threshold;
106 __le16 cmdq_xon_threshold;
107 __le32 reserved1;
108};
109
110struct scsi_ram_per_bdq_resource_drv_data {
111 struct scsi_bdq_ram_drv_data drv_data_per_bdq_id[BDQ_NUM_IDS];
112};
113
114enum scsi_sgl_mode {
115 SCSI_TX_SLOW_SGL,
116 SCSI_FAST_SGL,
117 MAX_SCSI_SGL_MODE
118};
119
120struct scsi_sgl_params {
121 struct regpair sgl_addr;
122 __le32 sgl_total_length;
123 __le32 sge_offset;
124 __le16 sgl_num_sges;
125 u8 sgl_index;
126 u8 reserved;
127};
128
129struct scsi_terminate_extra_params {
130 __le16 unsolicited_cq_count;
131 __le16 cmdq_count;
132 u8 reserved[4];
133};
134
135#endif /* __STORAGE_COMMON__ */