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- /* SPDX-License-Identifier: GPL-2.0-only */
- /*
- * QLogic Fibre Channel HBA Driver
- * Copyright (c) 2003-2017 QLogic Corporation
- */
- #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"
- #define MIN_NVME_HW_QUEUES 1
- #define DEF_NVME_HW_QUEUES 8
- #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. */
- __le16 nport_handle; /* N_PORT handle. */
- __le16 timeout; /* Command timeout. */
- __le16 dseg_count; /* Data segment count. */
- __le16 nvme_rsp_dsd_len; /* NVMe RSP DSD length */
- uint64_t rsvd;
- __le16 control_flags; /* Control Flags */
- #define CF_ADMIN_ASYNC_EVENT BIT_13
- #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
- __le16 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. */
- __le32 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;
- __le16 status;
- __le16 nport_handle;
- __le16 tx_dseg_count;
- uint8_t vp_index;
- uint8_t rsvd;
- __le16 timeout;
- __le16 control_flags;
- #define CF_LS4_SHIFT 13
- #define CF_LS4_ORIGINATOR 0
- #define CF_LS4_RESPONDER 1
- #define CF_LS4_RESPONDER_TERM 2
- __le16 rx_dseg_count;
- __le16 rsvd2;
- __le32 exchange_address;
- __le32 rsvd3;
- __le32 rx_byte_count;
- __le32 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;
- __le16 rsvd0;
- __le16 rsvd1;
- uint8_t vp_index;
- uint8_t rsvd2;
- __le16 rsvd3;
- __le16 nport_handle;
- __le16 frame_size;
- __le16 rsvd4;
- __le32 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;
- __le16 seq_cnt;
- uint8_t df_ctl;
- uint8_t seq_id;
- __le16 rx_id;
- __le16 ox_id;
- __le32 param;
- __le32 desc0;
- #define PT_LS4_PAYLOAD_OFFSET 0x2c
- #define PT_LS4_FIRST_PACKET_LEN 20
- __le32 desc_len;
- __le32 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
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