diff options
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_nvme.h')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_nvme.h | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_nvme.h b/drivers/scsi/qla2xxx/qla_nvme.h new file mode 100644 index 000000000..4941d107f --- /dev/null +++ b/drivers/scsi/qla2xxx/qla_nvme.h @@ -0,0 +1,152 @@ +/* + * 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 <linux/blk-mq.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" + +/* 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; +}; + +struct qla_nvme_rport { + struct list_head list; + 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_ENABLE BIT_9 +#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. */ + uint32_t nvme_cmnd_dseg_address[2]; /* Data segment address. */ + uint32_t nvme_rsp_dseg_address[2]; /* Data segment address. */ + + uint32_t byte_count; /* Total byte count. */ + + uint8_t port_id[3]; /* PortID of destination port. */ + uint8_t vp_index; + + uint32_t nvme_data_dseg_address[2]; /* Data segment address. */ + uint32_t nvme_data_dseg_len; /* Data segment length. */ +}; + +#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; + uint32_t dseg0_address[2]; + uint32_t dseg0_len; + uint32_t dseg1_address[2]; + uint32_t dseg1_len; +}; + +#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; + uint8_t s_id[3]; + 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 qla_nvme_abort(struct qla_hw_data *, struct srb *sp, int res); +void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *, struct pt_ls4_request *, + struct req_que *); +void qla24xx_async_gffid_sp_done(void *, int); +#endif |