| /* |
| * QLogic Fibre Channel HBA Driver |
| * Copyright (c) 2003-2017 QLogic Corporation |
| * |
| * See LICENSE.qla2xxx for copyright and licensing details. |
| */ |
| #ifndef __QLA_NVME_H |
| #define __QLA_NVME_H |
| |
| #include <uapi/scsi/fc/fc_fs.h> |
| #include <uapi/scsi/fc/fc_els.h> |
| #include <linux/nvme-fc-driver.h> |
| |
| #include "qla_def.h" |
| #include "qla_dsd.h" |
| |
| /* default dev loss time (seconds) before transport tears down ctrl */ |
| #define NVME_FC_DEV_LOSS_TMO 30 |
| |
| #define NVME_ATIO_CMD_OFF 32 |
| #define NVME_FIRST_PACKET_CMDLEN (64 - NVME_ATIO_CMD_OFF) |
| #define Q2T_NVME_NUM_TAGS 2048 |
| #define QLA_MAX_FC_SEGMENTS 64 |
| |
| struct scsi_qla_host; |
| struct qla_hw_data; |
| struct req_que; |
| struct srb; |
| |
| struct nvme_private { |
| struct srb *sp; |
| struct nvmefc_ls_req *fd; |
| struct work_struct ls_work; |
| struct work_struct abort_work; |
| int comp_status; |
| spinlock_t cmd_lock; |
| }; |
| |
| struct qla_nvme_rport { |
| struct fc_port *fcport; |
| }; |
| |
| #define COMMAND_NVME 0x88 /* Command Type FC-NVMe IOCB */ |
| struct cmd_nvme { |
| uint8_t entry_type; /* Entry type. */ |
| uint8_t entry_count; /* Entry count. */ |
| uint8_t sys_define; /* System defined. */ |
| uint8_t entry_status; /* Entry Status. */ |
| |
| uint32_t handle; /* System handle. */ |
| uint16_t nport_handle; /* N_PORT handle. */ |
| uint16_t timeout; /* Command timeout. */ |
| |
| uint16_t dseg_count; /* Data segment count. */ |
| uint16_t nvme_rsp_dsd_len; /* NVMe RSP DSD length */ |
| |
| uint64_t rsvd; |
| |
| uint16_t control_flags; /* Control Flags */ |
| #define CF_NVME_FIRST_BURST_ENABLE BIT_11 |
| #define CF_DIF_SEG_DESCR_ENABLE BIT_3 |
| #define CF_DATA_SEG_DESCR_ENABLE BIT_2 |
| #define CF_READ_DATA BIT_1 |
| #define CF_WRITE_DATA BIT_0 |
| |
| uint16_t nvme_cmnd_dseg_len; /* Data segment length. */ |
| __le64 nvme_cmnd_dseg_address __packed;/* Data segment address. */ |
| __le64 nvme_rsp_dseg_address __packed; /* Data segment address. */ |
| |
| uint32_t byte_count; /* Total byte count. */ |
| |
| uint8_t port_id[3]; /* PortID of destination port. */ |
| uint8_t vp_index; |
| |
| struct dsd64 nvme_dsd; |
| }; |
| |
| #define PT_LS4_REQUEST 0x89 /* Link Service pass-through IOCB (request) */ |
| struct pt_ls4_request { |
| uint8_t entry_type; |
| uint8_t entry_count; |
| uint8_t sys_define; |
| uint8_t entry_status; |
| uint32_t handle; |
| uint16_t status; |
| uint16_t nport_handle; |
| uint16_t tx_dseg_count; |
| uint8_t vp_index; |
| uint8_t rsvd; |
| uint16_t timeout; |
| uint16_t control_flags; |
| #define CF_LS4_SHIFT 13 |
| #define CF_LS4_ORIGINATOR 0 |
| #define CF_LS4_RESPONDER 1 |
| #define CF_LS4_RESPONDER_TERM 2 |
| |
| uint16_t rx_dseg_count; |
| uint16_t rsvd2; |
| uint32_t exchange_address; |
| uint32_t rsvd3; |
| uint32_t rx_byte_count; |
| uint32_t tx_byte_count; |
| struct dsd64 dsd[2]; |
| }; |
| |
| #define PT_LS4_UNSOL 0x56 /* pass-up unsolicited rec FC-NVMe request */ |
| struct pt_ls4_rx_unsol { |
| uint8_t entry_type; |
| uint8_t entry_count; |
| uint16_t rsvd0; |
| uint16_t rsvd1; |
| uint8_t vp_index; |
| uint8_t rsvd2; |
| uint16_t rsvd3; |
| uint16_t nport_handle; |
| uint16_t frame_size; |
| uint16_t rsvd4; |
| uint32_t exchange_address; |
| uint8_t d_id[3]; |
| uint8_t r_ctl; |
| be_id_t s_id; |
| uint8_t cs_ctl; |
| uint8_t f_ctl[3]; |
| uint8_t type; |
| uint16_t seq_cnt; |
| uint8_t df_ctl; |
| uint8_t seq_id; |
| uint16_t rx_id; |
| uint16_t ox_id; |
| uint32_t param; |
| uint32_t desc0; |
| #define PT_LS4_PAYLOAD_OFFSET 0x2c |
| #define PT_LS4_FIRST_PACKET_LEN 20 |
| uint32_t desc_len; |
| uint32_t payload[3]; |
| }; |
| |
| /* |
| * Global functions prototype in qla_nvme.c source file. |
| */ |
| int qla_nvme_register_hba(struct scsi_qla_host *); |
| int qla_nvme_register_remote(struct scsi_qla_host *, struct fc_port *); |
| void qla_nvme_delete(struct scsi_qla_host *); |
| void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *, struct pt_ls4_request *, |
| struct req_que *); |
| void qla24xx_async_gffid_sp_done(struct srb *sp, int); |
| #endif |