| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| James Smart | 993 | 99.70% | 6 | 75.00% |
| Christoph Hellwig | 3 | 0.30% | 2 | 25.00% |
| Total | 996 | 8 |
/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (c) 2016 Avago Technologies. All rights reserved. */ /* * This file contains definitions relative to FC-NVME-2 r1.08 * (T11-2019-00210-v004). */ #ifndef _NVME_FC_H #define _NVME_FC_H 1 #include <uapi/scsi/fc/fc_fs.h> #define NVME_CMD_FORMAT_ID 0xFD #define NVME_CMD_FC_ID FC_TYPE_NVME /* FC-NVME Cmd IU Flags */ enum { FCNVME_CMD_FLAGS_DIRMASK = 0x03, FCNVME_CMD_FLAGS_WRITE = (1 << 0), FCNVME_CMD_FLAGS_READ = (1 << 1), FCNVME_CMD_FLAGS_PICWP = (1 << 2), }; enum { FCNVME_CMD_CAT_MASK = 0x0F, FCNVME_CMD_CAT_ADMINQ = 0x01, FCNVME_CMD_CAT_CSSMASK = 0x07, FCNVME_CMD_CAT_CSSFLAG = 0x08, }; static inline __u8 fccmnd_set_cat_admin(__u8 rsv_cat) { return (rsv_cat & ~FCNVME_CMD_CAT_MASK) | FCNVME_CMD_CAT_ADMINQ; } static inline __u8 fccmnd_set_cat_css(__u8 rsv_cat, __u8 css) { return (rsv_cat & ~FCNVME_CMD_CAT_MASK) | FCNVME_CMD_CAT_CSSFLAG | (css & FCNVME_CMD_CAT_CSSMASK); } struct nvme_fc_cmd_iu { __u8 format_id; __u8 fc_id; __be16 iu_len; __u8 rsvd4[2]; __u8 rsv_cat; __u8 flags; __be64 connection_id; __be32 csn; __be32 data_len; struct nvme_command sqe; __u8 dps; __u8 lbads; __be16 ms; __be32 rsvd92; }; #define NVME_FC_SIZEOF_ZEROS_RSP 12 enum { FCNVME_SC_SUCCESS = 0, FCNVME_SC_INVALID_FIELD = 1, /* reserved 2 */ FCNVME_SC_ILL_CONN_PARAMS = 3, }; struct nvme_fc_ersp_iu { __u8 ersp_result; __u8 rsvd1; __be16 iu_len; __be32 rsn; __be32 xfrd_len; __be32 rsvd12; struct nvme_completion cqe; /* for now - no additional payload */ }; #define FCNVME_NVME_SR_OPCODE 0x01 #define FCNVME_NVME_SR_RSP_OPCODE 0x02 struct nvme_fc_nvme_sr_iu { __u8 fc_id; __u8 opcode; __u8 rsvd2; __u8 retry_rctl; __be32 rsvd4; }; enum { FCNVME_SRSTAT_ACC = 0x0, /* reserved 0x1 */ /* reserved 0x2 */ FCNVME_SRSTAT_LOGICAL_ERR = 0x3, FCNVME_SRSTAT_INV_QUALIF = 0x4, FCNVME_SRSTAT_UNABL2PERFORM = 0x9, }; struct nvme_fc_nvme_sr_rsp_iu { __u8 fc_id; __u8 opcode; __u8 rsvd2; __u8 status; __be32 rsvd4; }; /* FC-NVME Link Services - LS cmd values (w0 bits 31:24) */ enum { FCNVME_LS_RSVD = 0, FCNVME_LS_RJT = 1, FCNVME_LS_ACC = 2, FCNVME_LS_CREATE_ASSOCIATION = 3, /* Create Association */ FCNVME_LS_CREATE_CONNECTION = 4, /* Create I/O Connection */ FCNVME_LS_DISCONNECT_ASSOC = 5, /* Disconnect Association */ FCNVME_LS_DISCONNECT_CONN = 6, /* Disconnect Connection */ }; /* FC-NVME Link Service Descriptors */ enum { FCNVME_LSDESC_RSVD = 0x0, FCNVME_LSDESC_RQST = 0x1, FCNVME_LSDESC_RJT = 0x2, FCNVME_LSDESC_CREATE_ASSOC_CMD = 0x3, FCNVME_LSDESC_CREATE_CONN_CMD = 0x4, FCNVME_LSDESC_DISCONN_CMD = 0x5, FCNVME_LSDESC_CONN_ID = 0x6, FCNVME_LSDESC_ASSOC_ID = 0x7, }; /* ********** start of Link Service Descriptors ********** */ /* * fills in length of a descriptor. Struture minus descriptor header */ static inline __be32 fcnvme_lsdesc_len(size_t sz) { return cpu_to_be32(sz - (2 * sizeof(u32))); } struct fcnvme_ls_rqst_w0 { u8 ls_cmd; /* FCNVME_LS_xxx */ u8 zeros[3]; }; /* FCNVME_LSDESC_RQST */ struct fcnvme_lsdesc_rqst { __be32 desc_tag; /* FCNVME_LSDESC_xxx */ __be32 desc_len; struct fcnvme_ls_rqst_w0 w0; __be32 rsvd12; }; /* FC-NVME LS RJT reason_code values */ enum fcnvme_ls_rjt_reason { FCNVME_RJT_RC_NONE = 0, /* no reason - not to be sent */ FCNVME_RJT_RC_INVAL = 0x01, /* invalid NVMe_LS command code */ FCNVME_RJT_RC_LOGIC = 0x03, /* logical error */ FCNVME_RJT_RC_UNAB = 0x09, /* unable to perform command request */ FCNVME_RJT_RC_UNSUP = 0x0b, /* command not supported */ FCNVME_RJT_RC_INV_ASSOC = 0x40, /* Invalid Association ID */ FCNVME_RJT_RC_INV_CONN = 0x41, /* Invalid Connection ID */ FCNVME_RJT_RC_INV_PARAM = 0x42, /* Invalid Parameters */ FCNVME_RJT_RC_INSUF_RES = 0x43, /* Insufficient Resources */ FCNVME_RJT_RC_VENDOR = 0xff, /* vendor specific error */ }; /* FC-NVME LS RJT reason_explanation values */ enum fcnvme_ls_rjt_explan { FCNVME_RJT_EXP_NONE = 0x00, /* No additional explanation */ FCNVME_RJT_EXP_OXID_RXID = 0x17, /* invalid OX_ID-RX_ID combination */ FCNVME_RJT_EXP_UNAB_DATA = 0x2a, /* unable to supply requested data */ FCNVME_RJT_EXP_INV_LEN = 0x2d, /* Invalid payload length */ FCNVME_RJT_EXP_INV_ERSP_RAT = 0x40, /* Invalid NVMe_ERSP Ratio */ FCNVME_RJT_EXP_INV_CTLR_ID = 0x41, /* Invalid Controller ID */ FCNVME_RJT_EXP_INV_QUEUE_ID = 0x42, /* Invalid Queue ID */ FCNVME_RJT_EXP_INV_SQSIZE = 0x43, /* Invalid Submission Queue Size */ FCNVME_RJT_EXP_INV_HOSTID = 0x44, /* Invalid HOST ID */ FCNVME_RJT_EXP_INV_HOSTNQN = 0x45, /* Invalid HOSTNQN */ FCNVME_RJT_EXP_INV_SUBNQN = 0x46, /* Invalid SUBNQN */ }; /* FCNVME_LSDESC_RJT */ struct fcnvme_lsdesc_rjt { __be32 desc_tag; /* FCNVME_LSDESC_xxx */ __be32 desc_len; u8 rsvd8; /* * Reject reason and explanaction codes are generic * to ELs's from LS-3. */ u8 reason_code; /* fcnvme_ls_rjt_reason */ u8 reason_explanation; /* fcnvme_ls_rjt_explan */ u8 vendor; __be32 rsvd12; }; #define FCNVME_ASSOC_HOSTNQN_LEN 256 #define FCNVME_ASSOC_SUBNQN_LEN 256 /* FCNVME_LSDESC_CREATE_ASSOC_CMD */ struct fcnvme_lsdesc_cr_assoc_cmd { __be32 desc_tag; /* FCNVME_LSDESC_xxx */ __be32 desc_len; __be16 ersp_ratio; __be16 rsvd10; __be32 rsvd12[9]; __be16 cntlid; __be16 sqsize; __be32 rsvd52; uuid_t hostid; u8 hostnqn[FCNVME_ASSOC_HOSTNQN_LEN]; u8 subnqn[FCNVME_ASSOC_SUBNQN_LEN]; __be32 rsvd584[108]; /* pad to 1016 bytes, * which makes overall LS rqst * payload 1024 bytes */ }; #define FCNVME_LSDESC_CRA_CMD_DESC_MINLEN \ offsetof(struct fcnvme_lsdesc_cr_assoc_cmd, rsvd584) #define FCNVME_LSDESC_CRA_CMD_DESC_MIN_DESCLEN \ (FCNVME_LSDESC_CRA_CMD_DESC_MINLEN - \ offsetof(struct fcnvme_lsdesc_cr_assoc_cmd, ersp_ratio)) /* FCNVME_LSDESC_CREATE_CONN_CMD */ struct fcnvme_lsdesc_cr_conn_cmd { __be32 desc_tag; /* FCNVME_LSDESC_xxx */ __be32 desc_len; __be16 ersp_ratio; __be16 rsvd10; __be32 rsvd12[9]; __be16 qid; __be16 sqsize; __be32 rsvd52; }; /* FCNVME_LSDESC_DISCONN_CMD */ struct fcnvme_lsdesc_disconn_cmd { __be32 desc_tag; /* FCNVME_LSDESC_xxx */ __be32 desc_len; __be32 rsvd8[4]; }; /* FCNVME_LSDESC_CONN_ID */ struct fcnvme_lsdesc_conn_id { __be32 desc_tag; /* FCNVME_LSDESC_xxx */ __be32 desc_len; __be64 connection_id; }; /* FCNVME_LSDESC_ASSOC_ID */ struct fcnvme_lsdesc_assoc_id { __be32 desc_tag; /* FCNVME_LSDESC_xxx */ __be32 desc_len; __be64 association_id; }; /* r_ctl values */ enum { FCNVME_RS_RCTL_CMND = 0x6, FCNVME_RS_RCTL_DATA = 0x1, FCNVME_RS_RCTL_CONF = 0x3, FCNVME_RS_RCTL_SR = 0x9, FCNVME_RS_RCTL_XFER_RDY = 0x5, FCNVME_RS_RCTL_RSP = 0x7, FCNVME_RS_RCTL_ERSP = 0x8, FCNVME_RS_RCTL_SR_RSP = 0xA, }; /* ********** start of Link Services ********** */ /* FCNVME_LS_RJT */ struct fcnvme_ls_rjt { struct fcnvme_ls_rqst_w0 w0; __be32 desc_list_len; struct fcnvme_lsdesc_rqst rqst; struct fcnvme_lsdesc_rjt rjt; }; /* FCNVME_LS_ACC */ struct fcnvme_ls_acc_hdr { struct fcnvme_ls_rqst_w0 w0; __be32 desc_list_len; struct fcnvme_lsdesc_rqst rqst; /* * Followed by cmd-specific ACCEPT descriptors, see xxx_acc * definitions below */ }; /* FCNVME_LS_CREATE_ASSOCIATION */ struct fcnvme_ls_cr_assoc_rqst { struct fcnvme_ls_rqst_w0 w0; __be32 desc_list_len; struct fcnvme_lsdesc_cr_assoc_cmd assoc_cmd; }; #define FCNVME_LSDESC_CRA_RQST_MINLEN \ (offsetof(struct fcnvme_ls_cr_assoc_rqst, assoc_cmd) + \ FCNVME_LSDESC_CRA_CMD_DESC_MINLEN) #define FCNVME_LSDESC_CRA_RQST_MIN_LISTLEN \ FCNVME_LSDESC_CRA_CMD_DESC_MINLEN struct fcnvme_ls_cr_assoc_acc { struct fcnvme_ls_acc_hdr hdr; struct fcnvme_lsdesc_assoc_id associd; struct fcnvme_lsdesc_conn_id connectid; }; /* FCNVME_LS_CREATE_CONNECTION */ struct fcnvme_ls_cr_conn_rqst { struct fcnvme_ls_rqst_w0 w0; __be32 desc_list_len; struct fcnvme_lsdesc_assoc_id associd; struct fcnvme_lsdesc_cr_conn_cmd connect_cmd; }; struct fcnvme_ls_cr_conn_acc { struct fcnvme_ls_acc_hdr hdr; struct fcnvme_lsdesc_conn_id connectid; }; /* FCNVME_LS_DISCONNECT_ASSOC */ struct fcnvme_ls_disconnect_assoc_rqst { struct fcnvme_ls_rqst_w0 w0; __be32 desc_list_len; struct fcnvme_lsdesc_assoc_id associd; struct fcnvme_lsdesc_disconn_cmd discon_cmd; }; struct fcnvme_ls_disconnect_assoc_acc { struct fcnvme_ls_acc_hdr hdr; }; /* FCNVME_LS_DISCONNECT_CONN */ struct fcnvme_ls_disconnect_conn_rqst { struct fcnvme_ls_rqst_w0 w0; __be32 desc_list_len; struct fcnvme_lsdesc_assoc_id associd; struct fcnvme_lsdesc_conn_id connectid; }; struct fcnvme_ls_disconnect_conn_acc { struct fcnvme_ls_acc_hdr hdr; }; /* * Default R_A_TOV is pulled in from fc_fs.h but needs conversion * from ms to seconds for our use. */ #define FC_TWO_TIMES_R_A_TOV (2 * (FC_DEF_R_A_TOV / 1000)) #define NVME_FC_LS_TIMEOUT_SEC FC_TWO_TIMES_R_A_TOV #define NVME_FC_TGTOP_TIMEOUT_SEC FC_TWO_TIMES_R_A_TOV /* * TRADDR string must be of form "nn-<16hexdigits>:pn-<16hexdigits>" * the string is allowed to be specified with or without a "0x" prefix * infront of the <16hexdigits>. Without is considered the "min" string * and with is considered the "max" string. The hexdigits may be upper * or lower case. * Note: FC-NVME-2 standard requires a "0x" prefix. */ #define NVME_FC_TRADDR_NNLEN 3 /* "?n-" */ #define NVME_FC_TRADDR_OXNNLEN 5 /* "?n-0x" */ #define NVME_FC_TRADDR_HEXNAMELEN 16 #define NVME_FC_TRADDR_MINLENGTH \ (2 * (NVME_FC_TRADDR_NNLEN + NVME_FC_TRADDR_HEXNAMELEN) + 1) #define NVME_FC_TRADDR_MAXLENGTH \ (2 * (NVME_FC_TRADDR_OXNNLEN + NVME_FC_TRADDR_HEXNAMELEN) + 1) #define NVME_FC_TRADDR_MIN_PN_OFFSET \ (NVME_FC_TRADDR_NNLEN + NVME_FC_TRADDR_HEXNAMELEN + 1) #define NVME_FC_TRADDR_MAX_PN_OFFSET \ (NVME_FC_TRADDR_OXNNLEN + NVME_FC_TRADDR_HEXNAMELEN + 1) #endif /* _NVME_FC_H */
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