2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2017 QLogic Corporation
5 * See LICENSE.qla2xxx for copyright and licensing details.
10 #include <linux/blk-mq.h>
11 #include <uapi/scsi/fc/fc_fs.h>
12 #include <uapi/scsi/fc/fc_els.h>
13 #include <linux/nvme-fc-driver.h>
17 #define NVME_ATIO_CMD_OFF 32
18 #define NVME_FIRST_PACKET_CMDLEN (64 - NVME_ATIO_CMD_OFF)
19 #define Q2T_NVME_NUM_TAGS 2048
20 #define QLA_MAX_FC_SEGMENTS 64
29 struct nvmefc_ls_req *fd;
30 struct work_struct ls_work;
35 struct nvme_fc_port_info req;
36 struct list_head list;
37 struct fc_port *fcport;
40 #define COMMAND_NVME 0x88 /* Command Type FC-NVMe IOCB */
42 uint8_t entry_type; /* Entry type. */
43 uint8_t entry_count; /* Entry count. */
44 uint8_t sys_define; /* System defined. */
45 uint8_t entry_status; /* Entry Status. */
47 uint32_t handle; /* System handle. */
48 uint16_t nport_handle; /* N_PORT handle. */
49 uint16_t timeout; /* Command timeout. */
51 uint16_t dseg_count; /* Data segment count. */
52 uint16_t nvme_rsp_dsd_len; /* NVMe RSP DSD length */
56 uint16_t control_flags; /* Control Flags */
57 #define CF_NVME_ENABLE BIT_9
58 #define CF_DIF_SEG_DESCR_ENABLE BIT_3
59 #define CF_DATA_SEG_DESCR_ENABLE BIT_2
60 #define CF_READ_DATA BIT_1
61 #define CF_WRITE_DATA BIT_0
63 uint16_t nvme_cmnd_dseg_len; /* Data segment length. */
64 uint32_t nvme_cmnd_dseg_address[2]; /* Data segment address. */
65 uint32_t nvme_rsp_dseg_address[2]; /* Data segment address. */
67 uint32_t byte_count; /* Total byte count. */
69 uint8_t port_id[3]; /* PortID of destination port. */
72 uint32_t nvme_data_dseg_address[2]; /* Data segment address. */
73 uint32_t nvme_data_dseg_len; /* Data segment length. */
76 #define PT_LS4_REQUEST 0x89 /* Link Service pass-through IOCB (request) */
77 struct pt_ls4_request {
84 uint16_t nport_handle;
85 uint16_t tx_dseg_count;
89 uint16_t control_flags;
90 #define CF_LS4_SHIFT 13
91 #define CF_LS4_ORIGINATOR 0
92 #define CF_LS4_RESPONDER 1
93 #define CF_LS4_RESPONDER_TERM 2
95 uint16_t rx_dseg_count;
97 uint32_t exchange_address;
99 uint32_t rx_byte_count;
100 uint32_t tx_byte_count;
101 uint32_t dseg0_address[2];
103 uint32_t dseg1_address[2];
107 #define PT_LS4_UNSOL 0x56 /* pass-up unsolicited rec FC-NVMe request */
108 struct pt_ls4_rx_unsol {
116 uint16_t nport_handle;
119 uint32_t exchange_address;
133 #define PT_LS4_PAYLOAD_OFFSET 0x2c
134 #define PT_LS4_FIRST_PACKET_LEN 20
140 * Global functions prototype in qla_nvme.c source file.
142 void qla_nvme_register_hba(struct scsi_qla_host *);
143 int qla_nvme_register_remote(struct scsi_qla_host *, struct fc_port *);
144 void qla_nvme_delete(struct scsi_qla_host *);
145 void qla_nvme_abort(struct qla_hw_data *, struct srb *sp);
146 void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *, struct pt_ls4_request *,
148 void qla24xx_async_gffid_sp_done(void *, int);