1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * QLogic Fibre Channel HBA Driver
4 * Copyright (c) 2003-2017 QLogic Corporation
9 #include <uapi/scsi/fc/fc_fs.h>
10 #include <uapi/scsi/fc/fc_els.h>
11 #include <linux/nvme-fc-driver.h>
16 /* default dev loss time (seconds) before transport tears down ctrl */
17 #define NVME_FC_DEV_LOSS_TMO 30
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
31 struct nvmefc_ls_req *fd;
32 struct work_struct ls_work;
33 struct work_struct abort_work;
38 struct qla_nvme_rport {
39 struct fc_port *fcport;
42 #define COMMAND_NVME 0x88 /* Command Type FC-NVMe IOCB */
44 uint8_t entry_type; /* Entry type. */
45 uint8_t entry_count; /* Entry count. */
46 uint8_t sys_define; /* System defined. */
47 uint8_t entry_status; /* Entry Status. */
49 uint32_t handle; /* System handle. */
50 __le16 nport_handle; /* N_PORT handle. */
51 __le16 timeout; /* Command timeout. */
53 __le16 dseg_count; /* Data segment count. */
54 __le16 nvme_rsp_dsd_len; /* NVMe RSP DSD length */
58 __le16 control_flags; /* Control Flags */
59 #define CF_NVME_FIRST_BURST_ENABLE BIT_11
60 #define CF_DIF_SEG_DESCR_ENABLE BIT_3
61 #define CF_DATA_SEG_DESCR_ENABLE BIT_2
62 #define CF_READ_DATA BIT_1
63 #define CF_WRITE_DATA BIT_0
65 __le16 nvme_cmnd_dseg_len; /* Data segment length. */
66 __le64 nvme_cmnd_dseg_address __packed;/* Data segment address. */
67 __le64 nvme_rsp_dseg_address __packed; /* Data segment address. */
69 __le32 byte_count; /* Total byte count. */
71 uint8_t port_id[3]; /* PortID of destination port. */
74 struct dsd64 nvme_dsd;
77 #define PT_LS4_REQUEST 0x89 /* Link Service pass-through IOCB (request) */
78 struct pt_ls4_request {
91 #define CF_LS4_SHIFT 13
92 #define CF_LS4_ORIGINATOR 0
93 #define CF_LS4_RESPONDER 1
94 #define CF_LS4_RESPONDER_TERM 2
98 __le32 exchange_address;
100 __le32 rx_byte_count;
101 __le32 tx_byte_count;
105 #define PT_LS4_UNSOL 0x56 /* pass-up unsolicited rec FC-NVMe request */
106 struct pt_ls4_rx_unsol {
117 __le32 exchange_address;
131 #define PT_LS4_PAYLOAD_OFFSET 0x2c
132 #define PT_LS4_FIRST_PACKET_LEN 20
138 * Global functions prototype in qla_nvme.c source file.
140 int qla_nvme_register_hba(struct scsi_qla_host *);
141 int qla_nvme_register_remote(struct scsi_qla_host *, struct fc_port *);
142 void qla_nvme_delete(struct scsi_qla_host *);
143 void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *, struct pt_ls4_request *,
145 void qla24xx_async_gffid_sp_done(struct srb *sp, int);