1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * QLogic Fibre Channel HBA Driver 4*4882a593Smuzhiyun * Copyright (c) 2003-2017 QLogic Corporation 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun #ifndef __QLA_NVME_H 7*4882a593Smuzhiyun #define __QLA_NVME_H 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #include <uapi/scsi/fc/fc_fs.h> 10*4882a593Smuzhiyun #include <uapi/scsi/fc/fc_els.h> 11*4882a593Smuzhiyun #include <linux/nvme-fc-driver.h> 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #include "qla_def.h" 14*4882a593Smuzhiyun #include "qla_dsd.h" 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun #define NVME_ATIO_CMD_OFF 32 17*4882a593Smuzhiyun #define NVME_FIRST_PACKET_CMDLEN (64 - NVME_ATIO_CMD_OFF) 18*4882a593Smuzhiyun #define Q2T_NVME_NUM_TAGS 2048 19*4882a593Smuzhiyun #define QLA_MAX_FC_SEGMENTS 64 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun struct scsi_qla_host; 22*4882a593Smuzhiyun struct qla_hw_data; 23*4882a593Smuzhiyun struct req_que; 24*4882a593Smuzhiyun struct srb; 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun struct nvme_private { 27*4882a593Smuzhiyun struct srb *sp; 28*4882a593Smuzhiyun struct nvmefc_ls_req *fd; 29*4882a593Smuzhiyun struct work_struct ls_work; 30*4882a593Smuzhiyun struct work_struct abort_work; 31*4882a593Smuzhiyun int comp_status; 32*4882a593Smuzhiyun spinlock_t cmd_lock; 33*4882a593Smuzhiyun }; 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun struct qla_nvme_rport { 36*4882a593Smuzhiyun struct fc_port *fcport; 37*4882a593Smuzhiyun }; 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun #define COMMAND_NVME 0x88 /* Command Type FC-NVMe IOCB */ 40*4882a593Smuzhiyun struct cmd_nvme { 41*4882a593Smuzhiyun uint8_t entry_type; /* Entry type. */ 42*4882a593Smuzhiyun uint8_t entry_count; /* Entry count. */ 43*4882a593Smuzhiyun uint8_t sys_define; /* System defined. */ 44*4882a593Smuzhiyun uint8_t entry_status; /* Entry Status. */ 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun uint32_t handle; /* System handle. */ 47*4882a593Smuzhiyun __le16 nport_handle; /* N_PORT handle. */ 48*4882a593Smuzhiyun __le16 timeout; /* Command timeout. */ 49*4882a593Smuzhiyun 50*4882a593Smuzhiyun __le16 dseg_count; /* Data segment count. */ 51*4882a593Smuzhiyun __le16 nvme_rsp_dsd_len; /* NVMe RSP DSD length */ 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun uint64_t rsvd; 54*4882a593Smuzhiyun 55*4882a593Smuzhiyun __le16 control_flags; /* Control Flags */ 56*4882a593Smuzhiyun #define CF_ADMIN_ASYNC_EVENT BIT_13 57*4882a593Smuzhiyun #define CF_NVME_FIRST_BURST_ENABLE BIT_11 58*4882a593Smuzhiyun #define CF_DIF_SEG_DESCR_ENABLE BIT_3 59*4882a593Smuzhiyun #define CF_DATA_SEG_DESCR_ENABLE BIT_2 60*4882a593Smuzhiyun #define CF_READ_DATA BIT_1 61*4882a593Smuzhiyun #define CF_WRITE_DATA BIT_0 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun __le16 nvme_cmnd_dseg_len; /* Data segment length. */ 64*4882a593Smuzhiyun __le64 nvme_cmnd_dseg_address __packed;/* Data segment address. */ 65*4882a593Smuzhiyun __le64 nvme_rsp_dseg_address __packed; /* Data segment address. */ 66*4882a593Smuzhiyun 67*4882a593Smuzhiyun __le32 byte_count; /* Total byte count. */ 68*4882a593Smuzhiyun 69*4882a593Smuzhiyun uint8_t port_id[3]; /* PortID of destination port. */ 70*4882a593Smuzhiyun uint8_t vp_index; 71*4882a593Smuzhiyun 72*4882a593Smuzhiyun struct dsd64 nvme_dsd; 73*4882a593Smuzhiyun }; 74*4882a593Smuzhiyun 75*4882a593Smuzhiyun #define PT_LS4_REQUEST 0x89 /* Link Service pass-through IOCB (request) */ 76*4882a593Smuzhiyun struct pt_ls4_request { 77*4882a593Smuzhiyun uint8_t entry_type; 78*4882a593Smuzhiyun uint8_t entry_count; 79*4882a593Smuzhiyun uint8_t sys_define; 80*4882a593Smuzhiyun uint8_t entry_status; 81*4882a593Smuzhiyun uint32_t handle; 82*4882a593Smuzhiyun __le16 status; 83*4882a593Smuzhiyun __le16 nport_handle; 84*4882a593Smuzhiyun __le16 tx_dseg_count; 85*4882a593Smuzhiyun uint8_t vp_index; 86*4882a593Smuzhiyun uint8_t rsvd; 87*4882a593Smuzhiyun __le16 timeout; 88*4882a593Smuzhiyun __le16 control_flags; 89*4882a593Smuzhiyun #define CF_LS4_SHIFT 13 90*4882a593Smuzhiyun #define CF_LS4_ORIGINATOR 0 91*4882a593Smuzhiyun #define CF_LS4_RESPONDER 1 92*4882a593Smuzhiyun #define CF_LS4_RESPONDER_TERM 2 93*4882a593Smuzhiyun 94*4882a593Smuzhiyun __le16 rx_dseg_count; 95*4882a593Smuzhiyun __le16 rsvd2; 96*4882a593Smuzhiyun __le32 exchange_address; 97*4882a593Smuzhiyun __le32 rsvd3; 98*4882a593Smuzhiyun __le32 rx_byte_count; 99*4882a593Smuzhiyun __le32 tx_byte_count; 100*4882a593Smuzhiyun struct dsd64 dsd[2]; 101*4882a593Smuzhiyun }; 102*4882a593Smuzhiyun 103*4882a593Smuzhiyun #define PT_LS4_UNSOL 0x56 /* pass-up unsolicited rec FC-NVMe request */ 104*4882a593Smuzhiyun struct pt_ls4_rx_unsol { 105*4882a593Smuzhiyun uint8_t entry_type; 106*4882a593Smuzhiyun uint8_t entry_count; 107*4882a593Smuzhiyun __le16 rsvd0; 108*4882a593Smuzhiyun __le16 rsvd1; 109*4882a593Smuzhiyun uint8_t vp_index; 110*4882a593Smuzhiyun uint8_t rsvd2; 111*4882a593Smuzhiyun __le16 rsvd3; 112*4882a593Smuzhiyun __le16 nport_handle; 113*4882a593Smuzhiyun __le16 frame_size; 114*4882a593Smuzhiyun __le16 rsvd4; 115*4882a593Smuzhiyun __le32 exchange_address; 116*4882a593Smuzhiyun uint8_t d_id[3]; 117*4882a593Smuzhiyun uint8_t r_ctl; 118*4882a593Smuzhiyun be_id_t s_id; 119*4882a593Smuzhiyun uint8_t cs_ctl; 120*4882a593Smuzhiyun uint8_t f_ctl[3]; 121*4882a593Smuzhiyun uint8_t type; 122*4882a593Smuzhiyun __le16 seq_cnt; 123*4882a593Smuzhiyun uint8_t df_ctl; 124*4882a593Smuzhiyun uint8_t seq_id; 125*4882a593Smuzhiyun __le16 rx_id; 126*4882a593Smuzhiyun __le16 ox_id; 127*4882a593Smuzhiyun __le32 param; 128*4882a593Smuzhiyun __le32 desc0; 129*4882a593Smuzhiyun #define PT_LS4_PAYLOAD_OFFSET 0x2c 130*4882a593Smuzhiyun #define PT_LS4_FIRST_PACKET_LEN 20 131*4882a593Smuzhiyun __le32 desc_len; 132*4882a593Smuzhiyun __le32 payload[3]; 133*4882a593Smuzhiyun }; 134*4882a593Smuzhiyun 135*4882a593Smuzhiyun /* 136*4882a593Smuzhiyun * Global functions prototype in qla_nvme.c source file. 137*4882a593Smuzhiyun */ 138*4882a593Smuzhiyun int qla_nvme_register_hba(struct scsi_qla_host *); 139*4882a593Smuzhiyun int qla_nvme_register_remote(struct scsi_qla_host *, struct fc_port *); 140*4882a593Smuzhiyun void qla_nvme_delete(struct scsi_qla_host *); 141*4882a593Smuzhiyun void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *, struct pt_ls4_request *, 142*4882a593Smuzhiyun struct req_que *); 143*4882a593Smuzhiyun void qla24xx_async_gffid_sp_done(struct srb *sp, int); 144*4882a593Smuzhiyun #endif 145