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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * QLogic Fibre Channel HBA Driver4 * Copyright (c) 2003-2017 QLogic Corporation5 */6#ifndef __QLA_NVME_H7#define __QLA_NVME_H8 9#include <uapi/scsi/fc/fc_fs.h>10#include <uapi/scsi/fc/fc_els.h>11#include <linux/nvme-fc-driver.h>12 13#include "qla_def.h"14#include "qla_dsd.h"15 16#define MIN_NVME_HW_QUEUES 117#define DEF_NVME_HW_QUEUES 818 19#define NVME_ATIO_CMD_OFF 3220#define NVME_FIRST_PACKET_CMDLEN (64 - NVME_ATIO_CMD_OFF)21#define Q2T_NVME_NUM_TAGS 204822#define QLA_MAX_FC_SEGMENTS 6423 24struct qla_nvme_unsol_ctx;25struct scsi_qla_host;26struct qla_hw_data;27struct req_que;28struct srb;29 30struct nvme_private {31 struct srb *sp;32 struct nvmefc_ls_req *fd;33 struct work_struct ls_work;34 struct work_struct abort_work;35 int comp_status;36 spinlock_t cmd_lock;37};38 39struct qla_nvme_rport {40 struct fc_port *fcport;41 struct qla_nvme_unsol_ctx *uctx;42};43 44#define COMMAND_NVME 0x88 /* Command Type FC-NVMe IOCB */45struct 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. */52 __le16 nport_handle; /* N_PORT handle. */53 __le16 timeout; /* Command timeout. */54 55 __le16 dseg_count; /* Data segment count. */56 __le16 nvme_rsp_dsd_len; /* NVMe RSP DSD length */57 58 uint64_t rsvd;59 60 __le16 control_flags; /* Control Flags */61#define CF_ADMIN_ASYNC_EVENT BIT_1362#define CF_NVME_FIRST_BURST_ENABLE BIT_1163#define CF_DIF_SEG_DESCR_ENABLE BIT_364#define CF_DATA_SEG_DESCR_ENABLE BIT_265#define CF_READ_DATA BIT_166#define CF_WRITE_DATA BIT_067 68 __le16 nvme_cmnd_dseg_len; /* Data segment length. */69 __le64 nvme_cmnd_dseg_address __packed;/* Data segment address. */70 __le64 nvme_rsp_dseg_address __packed; /* Data segment address. */71 72 __le32 byte_count; /* Total byte count. */73 74 uint8_t port_id[3]; /* PortID of destination port. */75 uint8_t vp_index;76 77 struct dsd64 nvme_dsd;78};79 80#define PURLS_MSLEEP_INTERVAL 181#define PURLS_RETRY_COUNT 582 83#define PT_LS4_REQUEST 0x89 /* Link Service pass-through IOCB (request) */84struct 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;90 __le16 status;91 __le16 nport_handle;92 __le16 tx_dseg_count;93 uint8_t vp_index;94 uint8_t rsvd;95 __le16 timeout;96 __le16 control_flags;97#define CF_LS4_SHIFT 1398#define CF_LS4_ORIGINATOR 099#define CF_LS4_RESPONDER 1100#define CF_LS4_RESPONDER_TERM 2101 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;108 struct dsd64 dsd[2];109};110 111#define PT_LS4_UNSOL 0x56 /* pass-up unsolicited rec FC-NVMe request */112struct pt_ls4_rx_unsol {113 uint8_t entry_type;114 uint8_t entry_count;115 __le16 rsvd0;116 __le16 rsvd1;117 uint8_t vp_index;118 uint8_t rsvd2;119 __le16 rsvd3;120 __le16 nport_handle;121 __le16 frame_size;122 __le16 rsvd4;123 __le32 exchange_address;124 uint8_t d_id[3];125 uint8_t r_ctl;126 le_id_t s_id;127 uint8_t cs_ctl;128 uint8_t f_ctl[3];129 uint8_t type;130 __le16 seq_cnt;131 uint8_t df_ctl;132 uint8_t seq_id;133 __le16 rx_id;134 __le16 ox_id;135 __le32 desc0;136#define PT_LS4_PAYLOAD_OFFSET 0x2c137#define PT_LS4_FIRST_PACKET_LEN 20138 __le32 payload[5];139};140 141/*142 * Global functions prototype in qla_nvme.c source file.143 */144int qla_nvme_register_hba(struct scsi_qla_host *);145int qla_nvme_register_remote(struct scsi_qla_host *, struct fc_port *);146void qla_nvme_delete(struct scsi_qla_host *);147void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *, struct pt_ls4_request *,148 struct req_que *);149void qla24xx_async_gffid_sp_done(struct srb *sp, int);150#endif151