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77adf3f0 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
e84067d7 DG |
2 | /* |
3 | * QLogic Fibre Channel HBA Driver | |
4 | * Copyright (c) 2003-2017 QLogic Corporation | |
e84067d7 DG |
5 | */ |
6 | #ifndef __QLA_NVME_H | |
7 | #define __QLA_NVME_H | |
8 | ||
e84067d7 DG |
9 | #include <uapi/scsi/fc/fc_fs.h> |
10 | #include <uapi/scsi/fc/fc_els.h> | |
11 | #include <linux/nvme-fc-driver.h> | |
12 | ||
0f7e51f6 | 13 | #include "qla_def.h" |
15b7a68c | 14 | #include "qla_dsd.h" |
0f7e51f6 | 15 | |
65120de2 | 16 | #define MIN_NVME_HW_QUEUES 1 |
65120de2 SD |
17 | #define DEF_NVME_HW_QUEUES 8 |
18 | ||
e84067d7 DG |
19 | #define NVME_ATIO_CMD_OFF 32 |
20 | #define NVME_FIRST_PACKET_CMDLEN (64 - NVME_ATIO_CMD_OFF) | |
21 | #define Q2T_NVME_NUM_TAGS 2048 | |
22 | #define QLA_MAX_FC_SEGMENTS 64 | |
23 | ||
875386b9 | 24 | struct qla_nvme_unsol_ctx; |
0f7e51f6 | 25 | struct scsi_qla_host; |
26 | struct qla_hw_data; | |
27 | struct req_que; | |
e84067d7 | 28 | struct srb; |
0f7e51f6 | 29 | |
e84067d7 DG |
30 | struct nvme_private { |
31 | struct srb *sp; | |
32 | struct nvmefc_ls_req *fd; | |
33 | struct work_struct ls_work; | |
e473b307 | 34 | struct work_struct abort_work; |
e84067d7 | 35 | int comp_status; |
4c2a2d01 | 36 | spinlock_t cmd_lock; |
e84067d7 DG |
37 | }; |
38 | ||
9dd9686b | 39 | struct qla_nvme_rport { |
e84067d7 | 40 | struct fc_port *fcport; |
875386b9 | 41 | struct qla_nvme_unsol_ctx *uctx; |
e84067d7 DG |
42 | }; |
43 | ||
44 | #define COMMAND_NVME 0x88 /* Command Type FC-NVMe IOCB */ | |
45 | struct cmd_nvme { | |
46 | uint8_t entry_type; /* Entry type. */ | |
47 | uint8_t entry_count; /* Entry count. */ | |
48 | uint8_t sys_define; /* System defined. */ | |
49 | uint8_t entry_status; /* Entry Status. */ | |
50 | ||
51 | uint32_t handle; /* System handle. */ | |
21038b09 BVA |
52 | __le16 nport_handle; /* N_PORT handle. */ |
53 | __le16 timeout; /* Command timeout. */ | |
e84067d7 | 54 | |
21038b09 BVA |
55 | __le16 dseg_count; /* Data segment count. */ |
56 | __le16 nvme_rsp_dsd_len; /* NVMe RSP DSD length */ | |
e84067d7 DG |
57 | |
58 | uint64_t rsvd; | |
59 | ||
21038b09 | 60 | __le16 control_flags; /* Control Flags */ |
cf3c54fb | 61 | #define CF_ADMIN_ASYNC_EVENT BIT_13 |
03aaa89f | 62 | #define CF_NVME_FIRST_BURST_ENABLE BIT_11 |
e84067d7 DG |
63 | #define CF_DIF_SEG_DESCR_ENABLE BIT_3 |
64 | #define CF_DATA_SEG_DESCR_ENABLE BIT_2 | |
65 | #define CF_READ_DATA BIT_1 | |
66 | #define CF_WRITE_DATA BIT_0 | |
67 | ||
21038b09 | 68 | __le16 nvme_cmnd_dseg_len; /* Data segment length. */ |
d4556a49 BVA |
69 | __le64 nvme_cmnd_dseg_address __packed;/* Data segment address. */ |
70 | __le64 nvme_rsp_dseg_address __packed; /* Data segment address. */ | |
e84067d7 | 71 | |
21038b09 | 72 | __le32 byte_count; /* Total byte count. */ |
e84067d7 DG |
73 | |
74 | uint8_t port_id[3]; /* PortID of destination port. */ | |
75 | uint8_t vp_index; | |
76 | ||
15b7a68c | 77 | struct dsd64 nvme_dsd; |
e84067d7 DG |
78 | }; |
79 | ||
875386b9 MR |
80 | #define PURLS_MSLEEP_INTERVAL 1 |
81 | #define PURLS_RETRY_COUNT 5 | |
82 | ||
e84067d7 DG |
83 | #define PT_LS4_REQUEST 0x89 /* Link Service pass-through IOCB (request) */ |
84 | struct pt_ls4_request { | |
85 | uint8_t entry_type; | |
86 | uint8_t entry_count; | |
87 | uint8_t sys_define; | |
88 | uint8_t entry_status; | |
89 | uint32_t handle; | |
21038b09 BVA |
90 | __le16 status; |
91 | __le16 nport_handle; | |
92 | __le16 tx_dseg_count; | |
e84067d7 DG |
93 | uint8_t vp_index; |
94 | uint8_t rsvd; | |
21038b09 BVA |
95 | __le16 timeout; |
96 | __le16 control_flags; | |
e84067d7 DG |
97 | #define CF_LS4_SHIFT 13 |
98 | #define CF_LS4_ORIGINATOR 0 | |
99 | #define CF_LS4_RESPONDER 1 | |
100 | #define CF_LS4_RESPONDER_TERM 2 | |
101 | ||
21038b09 BVA |
102 | __le16 rx_dseg_count; |
103 | __le16 rsvd2; | |
104 | __le32 exchange_address; | |
105 | __le32 rsvd3; | |
106 | __le32 rx_byte_count; | |
107 | __le32 tx_byte_count; | |
15b7a68c | 108 | struct dsd64 dsd[2]; |
e84067d7 DG |
109 | }; |
110 | ||
111 | #define PT_LS4_UNSOL 0x56 /* pass-up unsolicited rec FC-NVMe request */ | |
112 | struct pt_ls4_rx_unsol { | |
113 | uint8_t entry_type; | |
114 | uint8_t entry_count; | |
21038b09 BVA |
115 | __le16 rsvd0; |
116 | __le16 rsvd1; | |
e84067d7 DG |
117 | uint8_t vp_index; |
118 | uint8_t rsvd2; | |
21038b09 BVA |
119 | __le16 rsvd3; |
120 | __le16 nport_handle; | |
121 | __le16 frame_size; | |
122 | __le16 rsvd4; | |
123 | __le32 exchange_address; | |
e84067d7 DG |
124 | uint8_t d_id[3]; |
125 | uint8_t r_ctl; | |
875386b9 | 126 | le_id_t s_id; |
e84067d7 DG |
127 | uint8_t cs_ctl; |
128 | uint8_t f_ctl[3]; | |
129 | uint8_t type; | |
21038b09 | 130 | __le16 seq_cnt; |
e84067d7 DG |
131 | uint8_t df_ctl; |
132 | uint8_t seq_id; | |
875386b9 MR |
133 | __le16 rx_id; |
134 | __le16 ox_id; | |
135 | __le32 desc0; | |
e84067d7 DG |
136 | #define PT_LS4_PAYLOAD_OFFSET 0x2c |
137 | #define PT_LS4_FIRST_PACKET_LEN 20 | |
875386b9 | 138 | __le32 payload[5]; |
e84067d7 | 139 | }; |
0f7e51f6 | 140 | |
141 | /* | |
142 | * Global functions prototype in qla_nvme.c source file. | |
143 | */ | |
8777e431 | 144 | int qla_nvme_register_hba(struct scsi_qla_host *); |
0f7e51f6 | 145 | int qla_nvme_register_remote(struct scsi_qla_host *, struct fc_port *); |
146 | void qla_nvme_delete(struct scsi_qla_host *); | |
0f7e51f6 | 147 | void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *, struct pt_ls4_request *, |
148 | struct req_que *); | |
6c18a43e | 149 | void qla24xx_async_gffid_sp_done(struct srb *sp, int); |
e84067d7 | 150 | #endif |