diff options
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/fc/fc_els.h | 11 | ||||
| -rw-r--r-- | include/scsi/fc/fc_fcoe.h | 15 | ||||
| -rw-r--r-- | include/scsi/fc/fc_fip.h | 46 | ||||
| -rw-r--r-- | include/scsi/fc/fc_ns.h | 7 | ||||
| -rw-r--r-- | include/scsi/fc_encode.h | 7 | ||||
| -rw-r--r-- | include/scsi/fc_frame.h | 52 | ||||
| -rw-r--r-- | include/scsi/iscsi_if.h | 2 | ||||
| -rw-r--r-- | include/scsi/libfc.h | 75 | ||||
| -rw-r--r-- | include/scsi/libfcoe.h | 72 | ||||
| -rw-r--r-- | include/scsi/libsas.h | 11 | ||||
| -rw-r--r-- | include/scsi/scsi_device.h | 8 | ||||
| -rw-r--r-- | include/scsi/scsi_transport_iscsi.h | 2 |
12 files changed, 236 insertions, 72 deletions
diff --git a/include/scsi/fc/fc_els.h b/include/scsi/fc/fc_els.h index f94328132a26..481abbd48e39 100644 --- a/include/scsi/fc/fc_els.h +++ b/include/scsi/fc/fc_els.h @@ -191,6 +191,7 @@ enum fc_els_rjt_reason { ELS_RJT_UNAB = 0x09, /* unable to perform command request */ ELS_RJT_UNSUP = 0x0b, /* command not supported */ ELS_RJT_INPROG = 0x0e, /* command already in progress */ + ELS_RJT_FIP = 0x20, /* FIP error */ ELS_RJT_VENDOR = 0xff, /* vendor specific error */ }; @@ -212,6 +213,7 @@ enum fc_els_rjt_explan { ELS_EXPL_UNAB_DATA = 0x2a, /* unable to supply requested data */ ELS_EXPL_UNSUPR = 0x2c, /* Request not supported */ ELS_EXPL_INV_LEN = 0x2d, /* Invalid payload length */ + ELS_EXPL_NOT_NEIGHBOR = 0x62, /* VN2VN_Port not in neighbor set */ /* TBD - above definitions incomplete */ }; @@ -405,6 +407,15 @@ struct fc_els_prli { }; /* + * ELS_PRLO - Process logout request and response. + */ +struct fc_els_prlo { + __u8 prlo_cmd; /* command */ + __u8 prlo_obs; /* obsolete, but shall be set to 10h */ + __be16 prlo_len; /* payload length */ +}; + +/* * ELS_ADISC payload */ struct fc_els_adisc { diff --git a/include/scsi/fc/fc_fcoe.h b/include/scsi/fc/fc_fcoe.h index e6ad3d2ae475..d5dcd6062815 100644 --- a/include/scsi/fc/fc_fcoe.h +++ b/include/scsi/fc/fc_fcoe.h @@ -22,23 +22,18 @@ /* * FCoE - Fibre Channel over Ethernet. + * See T11 FC-BB-5 Rev 2.00 (09-056v5.pdf) */ /* - * FC_FCOE_OUI hasn't been standardized yet. XXX TBD. + * Default FC_FCOE_OUI / FC-MAP value. */ -#ifndef FC_FCOE_OUI -#define FC_FCOE_OUI 0x0efc00 /* upper 24 bits of FCOE dest MAC TBD */ -#endif +#define FC_FCOE_OUI 0x0efc00 /* upper 24 bits of FCOE MAC */ /* - * The destination MAC address for the fabric login may get a different OUI. - * This isn't standardized yet. + * Fabric Login (FLOGI) MAC for non-FIP use. Non-FIP use is deprecated. */ -#ifndef FC_FCOE_FLOGI_MAC -/* gateway MAC - TBD */ #define FC_FCOE_FLOGI_MAC { 0x0e, 0xfc, 0x00, 0xff, 0xff, 0xfe } -#endif #define FC_FCOE_VER 0 /* version */ @@ -51,8 +46,6 @@ /* * FCoE frame header - 14 bytes - * - * This is the August 2007 version of the FCoE header as defined by T11. * This follows the VLAN header, which includes the ethertype. */ struct fcoe_hdr { diff --git a/include/scsi/fc/fc_fip.h b/include/scsi/fc/fc_fip.h index 17baa19380f0..ae25d4ab2548 100644 --- a/include/scsi/fc/fc_fip.h +++ b/include/scsi/fc/fc_fip.h @@ -17,9 +17,12 @@ #ifndef _FC_FIP_H_ #define _FC_FIP_H_ +#include <scsi/fc/fc_ns.h> + /* * This version is based on: * http://www.t11.org/ftp/t11/pub/fc/bb-5/08-543v1.pdf + * and T11 FC-BB-6 10-019v4.pdf (June 2010 VN2VN proposal) */ #define FIP_DEF_PRI 128 /* default selection priority */ @@ -29,11 +32,24 @@ #define FIP_FCF_FUZZ 100 /* random time added by FCF (mS) */ /* + * VN2VN proposed-standard values. + */ +#define FIP_VN_FC_MAP 0x0efd00 /* MAC OUI for VN2VN use */ +#define FIP_VN_PROBE_WAIT 100 /* interval between VN2VN probes (ms) */ +#define FIP_VN_ANN_WAIT 400 /* interval between VN2VN announcements (ms) */ +#define FIP_VN_RLIM_INT 10000 /* interval between probes when rate limited */ +#define FIP_VN_RLIM_COUNT 10 /* number of probes before rate limiting */ +#define FIP_VN_BEACON_INT 8000 /* interval between VN2VN beacons */ +#define FIP_VN_BEACON_FUZZ 100 /* random time to add to beacon period (ms) */ + +/* * Multicast MAC addresses. T11-adopted. */ -#define FIP_ALL_FCOE_MACS ((u8[6]) { 1, 0x10, 0x18, 1, 0, 0 }) -#define FIP_ALL_ENODE_MACS ((u8[6]) { 1, 0x10, 0x18, 1, 0, 1 }) -#define FIP_ALL_FCF_MACS ((u8[6]) { 1, 0x10, 0x18, 1, 0, 2 }) +#define FIP_ALL_FCOE_MACS ((__u8[6]) { 1, 0x10, 0x18, 1, 0, 0 }) +#define FIP_ALL_ENODE_MACS ((__u8[6]) { 1, 0x10, 0x18, 1, 0, 1 }) +#define FIP_ALL_FCF_MACS ((__u8[6]) { 1, 0x10, 0x18, 1, 0, 2 }) +#define FIP_ALL_VN2VN_MACS ((__u8[6]) { 1, 0x10, 0x18, 1, 0, 4 }) +#define FIP_ALL_P2P_MACS ((__u8[6]) { 1, 0x10, 0x18, 1, 0, 5 }) #define FIP_VER 1 /* version for fip_header */ @@ -60,6 +76,7 @@ enum fip_opcode { FIP_OP_LS = 2, /* Link Service request or reply */ FIP_OP_CTRL = 3, /* Keep Alive / Link Reset */ FIP_OP_VLAN = 4, /* VLAN discovery */ + FIP_OP_VN2VN = 5, /* VN2VN operation */ FIP_OP_VENDOR_MIN = 0xfff8, /* min vendor-specific opcode */ FIP_OP_VENDOR_MAX = 0xfffe, /* max vendor-specific opcode */ }; @@ -97,11 +114,23 @@ enum fip_vlan_subcode { }; /* + * Subcodes for FIP_OP_VN2VN. + */ +enum fip_vn2vn_subcode { + FIP_SC_VN_PROBE_REQ = 1, /* probe request */ + FIP_SC_VN_PROBE_REP = 2, /* probe reply */ + FIP_SC_VN_CLAIM_NOTIFY = 3, /* claim notification */ + FIP_SC_VN_CLAIM_REP = 4, /* claim response */ + FIP_SC_VN_BEACON = 5, /* beacon */ +}; + +/* * flags in header fip_flags. */ enum fip_flag { FIP_FL_FPMA = 0x8000, /* supports FPMA fabric-provided MACs */ FIP_FL_SPMA = 0x4000, /* supports SPMA server-provided MACs */ + FIP_FL_REC_OR_P2P = 0x0008, /* configured addr or point-to-point */ FIP_FL_AVAIL = 0x0004, /* available for FLOGI/ELP */ FIP_FL_SOL = 0x0002, /* this is a solicited message */ FIP_FL_FPORT = 0x0001, /* sent from an F port */ @@ -130,6 +159,7 @@ enum fip_desc_type { FIP_DT_FKA = 12, /* advertisement keep-alive period */ FIP_DT_VENDOR = 13, /* vendor ID */ FIP_DT_VLAN = 14, /* vlan number */ + FIP_DT_FC4F = 15, /* FC-4 features */ FIP_DT_LIMIT, /* max defined desc_type + 1 */ FIP_DT_VENDOR_BASE = 128, /* first vendor-specific desc_type */ }; @@ -229,6 +259,16 @@ enum fip_fka_flags { /* FIP_DT_FKA flags */ /* + * FIP_DT_FC4F - FC-4 features. + */ +struct fip_fc4_feat { + struct fip_desc fd_desc; + __u8 fd_resvd[2]; + struct fc_ns_fts fd_fts; + struct fc_ns_ff fd_ff; +} __attribute__((packed)); + +/* * FIP_DT_VENDOR descriptor. */ struct fip_vendor_desc { diff --git a/include/scsi/fc/fc_ns.h b/include/scsi/fc/fc_ns.h index e7d3ac497d7d..185015dd1166 100644 --- a/include/scsi/fc/fc_ns.h +++ b/include/scsi/fc/fc_ns.h @@ -100,6 +100,13 @@ struct fc_ns_fts { }; /* + * FC4-features object. + */ +struct fc_ns_ff { + __be32 fd_feat[FC_NS_TYPES * 4 / FC_NS_BPW]; /* 4-bits per FC-type */ +}; + +/* * GID_PT request. */ struct fc_ns_gid_pt { diff --git a/include/scsi/fc_encode.h b/include/scsi/fc_encode.h index 9b4867c9c2d2..6d293c846a46 100644 --- a/include/scsi/fc_encode.h +++ b/include/scsi/fc_encode.h @@ -21,6 +21,13 @@ #define _FC_ENCODE_H_ #include <asm/unaligned.h> +/* + * F_CTL values for simple requests and responses. + */ +#define FC_FCTL_REQ (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT) +#define FC_FCTL_RESP (FC_FC_EX_CTX | FC_FC_LAST_SEQ | \ + FC_FC_END_SEQ | FC_FC_SEQ_INIT) + struct fc_ns_rft { struct fc_ns_fid fid; /* port ID object */ struct fc_ns_fts fts; /* FC4-types object */ diff --git a/include/scsi/fc_frame.h b/include/scsi/fc_frame.h index 4d3e9c7b7c57..4ad02041b667 100644 --- a/include/scsi/fc_frame.h +++ b/include/scsi/fc_frame.h @@ -30,6 +30,23 @@ #include <linux/if_ether.h> +/* some helpful macros */ + +#define ntohll(x) be64_to_cpu(x) +#define htonll(x) cpu_to_be64(x) + +static inline u32 ntoh24(const u8 *p) +{ + return (p[0] << 16) | (p[1] << 8) | p[2]; +} + +static inline void hton24(u8 *p, u32 v) +{ + p[0] = (v >> 16) & 0xff; + p[1] = (v >> 8) & 0xff; + p[2] = v & 0xff; +} + /* * The fc_frame interface is used to pass frame data between functions. * The frame includes the data buffer, length, and SOF / EOF delimiter types. @@ -51,6 +68,7 @@ #define fr_sof(fp) (fr_cb(fp)->fr_sof) #define fr_eof(fp) (fr_cb(fp)->fr_eof) #define fr_flags(fp) (fr_cb(fp)->fr_flags) +#define fr_encaps(fp) (fr_cb(fp)->fr_encaps) #define fr_max_payload(fp) (fr_cb(fp)->fr_max_payload) #define fr_fsp(fp) (fr_cb(fp)->fr_fsp) #define fr_crc(fp) (fr_cb(fp)->fr_crc) @@ -66,9 +84,10 @@ struct fcoe_rcv_info { struct fc_fcp_pkt *fr_fsp; /* for the corresponding fcp I/O */ u32 fr_crc; u16 fr_max_payload; /* max FC payload */ - enum fc_sof fr_sof; /* start of frame delimiter */ - enum fc_eof fr_eof; /* end of frame delimiter */ + u8 fr_sof; /* start of frame delimiter */ + u8 fr_eof; /* end of frame delimiter */ u8 fr_flags; /* flags - see below */ + u8 fr_encaps; /* LLD encapsulation info (e.g. FIP) */ u8 granted_mac[ETH_ALEN]; /* FCoE MAC address */ }; @@ -97,6 +116,7 @@ static inline void fc_frame_init(struct fc_frame *fp) fr_dev(fp) = NULL; fr_seq(fp) = NULL; fr_flags(fp) = 0; + fr_encaps(fp) = 0; } struct fc_frame *fc_frame_alloc_fill(struct fc_lport *, size_t payload_len); @@ -136,13 +156,39 @@ static inline int fc_frame_is_linear(struct fc_frame *fp) /* * Get frame header from message in fc_frame structure. + * This version doesn't do a length check. + */ +static inline +struct fc_frame_header *__fc_frame_header_get(const struct fc_frame *fp) +{ + return (struct fc_frame_header *)fr_hdr(fp); +} + +/* + * Get frame header from message in fc_frame structure. * This hides a cast and provides a place to add some checking. */ static inline struct fc_frame_header *fc_frame_header_get(const struct fc_frame *fp) { WARN_ON(fr_len(fp) < sizeof(struct fc_frame_header)); - return (struct fc_frame_header *) fr_hdr(fp); + return __fc_frame_header_get(fp); +} + +/* + * Get source FC_ID (S_ID) from frame header in message. + */ +static inline u32 fc_frame_sid(const struct fc_frame *fp) +{ + return ntoh24(__fc_frame_header_get(fp)->fh_s_id); +} + +/* + * Get destination FC_ID (D_ID) from frame header in message. + */ +static inline u32 fc_frame_did(const struct fc_frame *fp) +{ + return ntoh24(__fc_frame_header_get(fp)->fh_d_id); } /* diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h index 66d377b9c72b..a8631acd37c3 100644 --- a/include/scsi/iscsi_if.h +++ b/include/scsi/iscsi_if.h @@ -313,6 +313,7 @@ enum iscsi_param { ISCSI_PARAM_INITIATOR_NAME, ISCSI_PARAM_TGT_RESET_TMO, + ISCSI_PARAM_TARGET_ALIAS, /* must always be last */ ISCSI_PARAM_MAX, }; @@ -353,6 +354,7 @@ enum iscsi_param { #define ISCSI_ISID (1ULL << ISCSI_PARAM_ISID) #define ISCSI_INITIATOR_NAME (1ULL << ISCSI_PARAM_INITIATOR_NAME) #define ISCSI_TGT_RESET_TMO (1ULL << ISCSI_PARAM_TGT_RESET_TMO) +#define ISCSI_TARGET_ALIAS (1ULL << ISCSI_PARAM_TARGET_ALIAS) /* iSCSI HBA params */ enum iscsi_host_param { diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h index 7495c0ba67ee..14be49b44e84 100644 --- a/include/scsi/libfc.h +++ b/include/scsi/libfc.h @@ -42,24 +42,6 @@ #define FC_EX_TIMEOUT 1 /* Exchange timeout */ #define FC_EX_CLOSED 2 /* Exchange closed */ -/* some helpful macros */ - -#define ntohll(x) be64_to_cpu(x) -#define htonll(x) cpu_to_be64(x) - - -static inline u32 ntoh24(const u8 *p) -{ - return (p[0] << 16) | (p[1] << 8) | p[2]; -} - -static inline void hton24(u8 *p, u32 v) -{ - p[0] = (v >> 16) & 0xff; - p[1] = (v >> 8) & 0xff; - p[2] = v & 0xff; -} - /** * enum fc_lport_state - Local port states * @LPORT_ST_DISABLED: Disabled @@ -97,25 +79,25 @@ enum fc_disc_event { /** * enum fc_rport_state - Remote port states * @RPORT_ST_INIT: Initialized + * @RPORT_ST_FLOGI: Waiting for FLOGI completion for point-to-multipoint + * @RPORT_ST_PLOGI_WAIT: Waiting for peer to login for point-to-multipoint * @RPORT_ST_PLOGI: Waiting for PLOGI completion * @RPORT_ST_PRLI: Waiting for PRLI completion * @RPORT_ST_RTV: Waiting for RTV completion * @RPORT_ST_READY: Ready for use - * @RPORT_ST_LOGO: Remote port logout (LOGO) sent * @RPORT_ST_ADISC: Discover Address sent * @RPORT_ST_DELETE: Remote port being deleted - * @RPORT_ST_RESTART: Remote port being deleted and will restart */ enum fc_rport_state { RPORT_ST_INIT, + RPORT_ST_FLOGI, + RPORT_ST_PLOGI_WAIT, RPORT_ST_PLOGI, RPORT_ST_PRLI, RPORT_ST_RTV, RPORT_ST_READY, - RPORT_ST_LOGO, RPORT_ST_ADISC, RPORT_ST_DELETE, - RPORT_ST_RESTART, }; /** @@ -173,6 +155,7 @@ struct fc_rport_libfc_priv { u16 flags; #define FC_RP_FLAGS_REC_SUPPORTED (1 << 0) #define FC_RP_FLAGS_RETRY (1 << 1) + #define FC_RP_STARTED (1 << 2) unsigned int e_d_tov; unsigned int r_a_tov; }; @@ -185,16 +168,18 @@ struct fc_rport_libfc_priv { * @rp_state: Enumeration that tracks progress of PLOGI, PRLI, * and RTV exchanges * @ids: The remote port identifiers and roles - * @flags: REC and RETRY supported flags + * @flags: STARTED, REC and RETRY_SUPPORTED flags * @max_seq: Maximum number of concurrent sequences * @disc_id: The discovery identifier * @maxframe_size: The maximum frame size * @retries: The retry count for the current state + * @major_retries: The retry count for the entire PLOGI/PRLI state machine * @e_d_tov: Error detect timeout value (in msec) * @r_a_tov: Resource allocation timeout value (in msec) * @rp_mutex: The mutex that protects the remote port * @retry_work: Handle for retries * @event_callback: Callback when READY, FAILED or LOGO states complete + * @rcu: Structure used for freeing in an RCU-safe manner */ struct fc_rport_priv { struct fc_lport *local_port; @@ -207,6 +192,7 @@ struct fc_rport_priv { u16 disc_id; u16 maxframe_size; unsigned int retries; + unsigned int major_retries; unsigned int e_d_tov; unsigned int r_a_tov; struct mutex rp_mutex; @@ -216,6 +202,7 @@ struct fc_rport_priv { struct list_head peers; struct work_struct event_work; u32 supported_classes; + struct rcu_head rcu; }; /** @@ -262,14 +249,12 @@ struct fcoe_dev_stats { /** * struct fc_seq_els_data - ELS data used for passing ELS specific responses - * @fp: The ELS frame * @reason: The reason for rejection * @explan: The explaination of the rejection * * Mainly used by the exchange manager layer. */ struct fc_seq_els_data { - struct fc_frame *fp; enum fc_els_rjt_reason reason; enum fc_els_rjt_explan explan; }; @@ -405,6 +390,7 @@ struct fc_seq { * @esb_stat: ESB exchange status * @r_a_tov: Resouce allocation time out value (in msecs) * @seq_id: The next sequence ID to use + * @encaps: encapsulation information for lower-level driver * @f_ctl: F_CTL flags for the sequence * @fh_type: The frame type * @class: The class of service @@ -436,6 +422,7 @@ struct fc_exch { u32 esb_stat; u32 r_a_tov; u8 seq_id; + u8 encaps; u32 f_ctl; u8 fh_type; enum fc_class class; @@ -530,12 +517,11 @@ struct libfc_function_template { struct fc_frame *); /* - * Send an ELS response using infomation from a previous - * exchange and sequence. + * Send an ELS response using infomation from the received frame. * * STATUS: OPTIONAL */ - void (*seq_els_rsp_send)(struct fc_seq *, enum fc_els_cmd, + void (*seq_els_rsp_send)(struct fc_frame *, enum fc_els_cmd, struct fc_seq_els_data *); /* @@ -567,6 +553,13 @@ struct libfc_function_template { struct fc_seq *(*seq_start_next)(struct fc_seq *); /* + * Assign a sequence for an incoming request frame. + * + * STATUS: OPTIONAL + */ + struct fc_seq *(*seq_assign)(struct fc_lport *, struct fc_frame *); + + /* * Reset an exchange manager, completing all sequences and exchanges. * If s_id is non-zero, reset only exchanges originating from that FID. * If d_id is non-zero, reset only exchanges sending to that FID. @@ -587,8 +580,7 @@ struct libfc_function_template { * * STATUS: OPTIONAL */ - void (*lport_recv)(struct fc_lport *, struct fc_seq *, - struct fc_frame *); + void (*lport_recv)(struct fc_lport *, struct fc_frame *); /* * Reset the local port. @@ -650,8 +642,7 @@ struct libfc_function_template { * * STATUS: OPTIONAL */ - void (*rport_recv_req)(struct fc_seq *, struct fc_frame *, - struct fc_lport *); + void (*rport_recv_req)(struct fc_lport *, struct fc_frame *); /* * lookup an rport by it's port ID. @@ -697,8 +688,7 @@ struct libfc_function_template { * * STATUS: OPTIONAL */ - void (*disc_recv_req)(struct fc_seq *, struct fc_frame *, - struct fc_lport *); + void (*disc_recv_req)(struct fc_lport *, struct fc_frame *); /* * Start discovery for a local port. @@ -736,7 +726,7 @@ struct libfc_function_template { * @buf_len: Length of the discovery buffer * @disc_id: Discovery ID * @rports: List of discovered remote ports - * @lport: The local port that discovery is for + * @priv: Private pointer for use by discovery code * @disc_mutex: Mutex that protects the discovery context * @partial_buf: Partial name buffer (if names are returned * in multiple frames) @@ -752,7 +742,7 @@ struct fc_disc { u16 disc_id; struct list_head rports; - struct fc_lport *lport; + void *priv; struct mutex disc_mutex; struct fc_gpn_ft_resp partial_buf; struct delayed_work disc_work; @@ -796,6 +786,7 @@ struct fc_disc { * @mfs: The maximum Fibre Channel payload size * @max_retry_count: The maximum retry attempts * @max_rport_retry_count: The maximum remote port retry attempts + * @rport_priv_size: Size needed by driver after struct fc_rport_priv * @lro_xid: The maximum XID for LRO * @lso_max: The maximum large offload send size * @fcts: FC-4 type mask @@ -842,9 +833,11 @@ struct fc_lport { u32 lro_enabled:1; u32 does_npiv:1; u32 npiv_enabled:1; + u32 point_to_multipoint:1; u32 mfs; u8 max_retry_count; u8 max_rport_retry_count; + u16 rport_priv_size; u16 link_speed; u16 link_supported_speeds; u16 lro_xid; @@ -986,6 +979,7 @@ int fc_set_mfs(struct fc_lport *, u32 mfs); struct fc_lport *libfc_vport_create(struct fc_vport *, int privsize); struct fc_lport *fc_vport_id_lookup(struct fc_lport *, u32 port_id); int fc_lport_bsg_request(struct fc_bsg_job *); +void fc_lport_set_local_id(struct fc_lport *, u32 port_id); /* * REMOTE PORT LAYER @@ -998,6 +992,11 @@ void fc_rport_terminate_io(struct fc_rport *); *****************************/ int fc_disc_init(struct fc_lport *); +static inline struct fc_lport *fc_disc_lport(struct fc_disc *disc) +{ + return container_of(disc, struct fc_lport, disc); +} + /* * FCP LAYER *****************************/ @@ -1029,6 +1028,10 @@ struct fc_seq *fc_elsct_send(struct fc_lport *, u32 did, void *arg, u32 timer_msec); void fc_lport_flogi_resp(struct fc_seq *, struct fc_frame *, void *); void fc_lport_logo_resp(struct fc_seq *, struct fc_frame *, void *); +void fc_fill_reply_hdr(struct fc_frame *, const struct fc_frame *, + enum fc_rctl, u32 parm_offset); +void fc_fill_hdr(struct fc_frame *, const struct fc_frame *, + enum fc_rctl, u32 f_ctl, u16 seq_cnt, u32 parm_offset); /* diff --git a/include/scsi/libfcoe.h b/include/scsi/libfcoe.h index ec13f51531f8..06f1b5a8ed19 100644 --- a/include/scsi/libfcoe.h +++ b/include/scsi/libfcoe.h @@ -26,6 +26,7 @@ #include <linux/netdevice.h> #include <linux/skbuff.h> #include <linux/workqueue.h> +#include <linux/random.h> #include <scsi/fc/fc_fcoe.h> #include <scsi/libfc.h> @@ -37,6 +38,7 @@ #define FCOE_CTLR_START_DELAY 2000 /* mS after first adv. to choose FCF */ #define FCOE_CTRL_SOL_TOV 2000 /* min. solicitation interval (mS) */ #define FCOE_CTLR_FCF_LIMIT 20 /* max. number of FCF entries */ +#define FCOE_CTLR_VN2VN_LOGIN_LIMIT 3 /* max. VN2VN rport login retries */ /** * enum fip_state - internal state of FCoE controller. @@ -45,6 +47,11 @@ * @FIP_ST_AUTO: determining whether to use FIP or non-FIP mode. * @FIP_ST_NON_FIP: non-FIP mode selected. * @FIP_ST_ENABLED: FIP mode selected. + * @FIP_ST_VNMP_START: VN2VN multipath mode start, wait + * @FIP_ST_VNMP_PROBE1: VN2VN sent first probe, listening + * @FIP_ST_VNMP_PROBE2: VN2VN sent second probe, listening + * @FIP_ST_VNMP_CLAIM: VN2VN sent claim, waiting for responses + * @FIP_ST_VNMP_UP: VN2VN multipath mode operation */ enum fip_state { FIP_ST_DISABLED, @@ -52,8 +59,23 @@ enum fip_state { FIP_ST_AUTO, FIP_ST_NON_FIP, FIP_ST_ENABLED, + FIP_ST_VNMP_START, + FIP_ST_VNMP_PROBE1, + FIP_ST_VNMP_PROBE2, + FIP_ST_VNMP_CLAIM, + FIP_ST_VNMP_UP, }; +/* + * Modes: + * The mode is the state that is to be entered after link up. + * It must not change after fcoe_ctlr_init() sets it. + */ +#define FIP_MODE_AUTO FIP_ST_AUTO +#define FIP_MODE_NON_FIP FIP_ST_NON_FIP +#define FIP_MODE_FABRIC FIP_ST_ENABLED +#define FIP_MODE_VN2VN FIP_ST_VNMP_START + /** * struct fcoe_ctlr - FCoE Controller and FIP state * @state: internal FIP state for network link and FIP or non-FIP mode. @@ -70,19 +92,20 @@ enum fip_state { * @timer_work: &work_struct for doing keep-alives and resets. * @recv_work: &work_struct for receiving FIP frames. * @fip_recv_list: list of received FIP frames. + * @rnd_state: state for pseudo-random number generator. + * @port_id: proposed or selected local-port ID. * @user_mfs: configured maximum FC frame size, including FC header. * @flogi_oxid: exchange ID of most recent fabric login. * @flogi_count: number of FLOGI attempts in AUTO mode. * @map_dest: use the FC_MAP mode for destination MAC addresses. * @spma: supports SPMA server-provided MACs mode - * @send_ctlr_ka: need to send controller keep alive - * @send_port_ka: need to send port keep alives + * @probe_tries: number of FC_IDs probed * @dest_addr: MAC address of the selected FC forwarder. * @ctl_src_addr: the native MAC address of our local port. * @send: LLD-supplied function to handle sending FIP Ethernet frames * @update_mac: LLD-supplied function to handle changes to MAC addresses. * @get_src_addr: LLD-supplied function to supply a source MAC address. - * @lock: lock protecting this structure. + * @ctlr_mutex: lock protecting this structure. * * This structure is used by all FCoE drivers. It contains information * needed by all FCoE low-level drivers (LLDs) as well as internal state @@ -103,21 +126,23 @@ struct fcoe_ctlr { struct work_struct timer_work; struct work_struct recv_work; struct sk_buff_head fip_recv_list; + + struct rnd_state rnd_state; + u32 port_id; + u16 user_mfs; u16 flogi_oxid; u8 flogi_count; - u8 reset_req; u8 map_dest; u8 spma; - u8 send_ctlr_ka; - u8 send_port_ka; + u8 probe_tries; u8 dest_addr[ETH_ALEN]; u8 ctl_src_addr[ETH_ALEN]; void (*send)(struct fcoe_ctlr *, struct sk_buff *); void (*update_mac)(struct fc_lport *, u8 *addr); u8 * (*get_src_addr)(struct fc_lport *); - spinlock_t lock; + struct mutex ctlr_mutex; }; /** @@ -156,8 +181,26 @@ struct fcoe_fcf { u8 fd_flags:1; }; +/** + * struct fcoe_rport - VN2VN remote port + * @time: time of create or last beacon packet received from node + * @fcoe_len: max FCoE frame size, not including VLAN or Ethernet headers + * @flags: flags from probe or claim + * @login_count: number of unsuccessful rport logins to this port + * @enode_mac: E_Node control MAC address + * @vn_mac: VN_Node assigned MAC address for data + */ +struct fcoe_rport { + unsigned long time; + u16 fcoe_len; + u16 flags; + u8 login_count; + u8 enode_mac[ETH_ALEN]; + u8 vn_mac[ETH_ALEN]; +}; + /* FIP API functions */ -void fcoe_ctlr_init(struct fcoe_ctlr *); +void fcoe_ctlr_init(struct fcoe_ctlr *, enum fip_state); void fcoe_ctlr_destroy(struct fcoe_ctlr *); void fcoe_ctlr_link_up(struct fcoe_ctlr *); int fcoe_ctlr_link_down(struct fcoe_ctlr *); @@ -168,6 +211,17 @@ int fcoe_ctlr_recv_flogi(struct fcoe_ctlr *, struct fc_lport *, /* libfcoe funcs */ u64 fcoe_wwn_from_mac(unsigned char mac[], unsigned int, unsigned int); -int fcoe_libfc_config(struct fc_lport *, struct libfc_function_template *); +int fcoe_libfc_config(struct fc_lport *, struct fcoe_ctlr *, + const struct libfc_function_template *, int init_fcp); + +/** + * is_fip_mode() - returns true if FIP mode selected. + * @fip: FCoE controller. + */ +static inline bool is_fip_mode(struct fcoe_ctlr *fip) +{ + return fip->state == FIP_ST_ENABLED; +} + #endif /* _LIBFCOE_H */ diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h index 3b586859669c..d06e13be717b 100644 --- a/include/scsi/libsas.h +++ b/include/scsi/libsas.h @@ -422,16 +422,7 @@ enum service_response { }; enum exec_status { - SAM_GOOD = 0, - SAM_CHECK_COND = 2, - SAM_COND_MET = 4, - SAM_BUSY = 8, - SAM_INTERMEDIATE = 0x10, - SAM_IM_COND_MET = 0x12, - SAM_RESV_CONFLICT= 0x14, - SAM_TASK_SET_FULL= 0x28, - SAM_ACA_ACTIVE = 0x30, - SAM_TASK_ABORTED = 0x40, + /* The SAM_STAT_.. codes fit in the lower 6 bits */ SAS_DEV_NO_RESPONSE = 0x80, SAS_DATA_UNDERRUN, diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index d80b6dbed1ca..50cb34ffef11 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -381,6 +381,14 @@ extern int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd, struct scsi_sense_hdr *, int timeout, int retries, int *resid); +#ifdef CONFIG_PM_RUNTIME +extern int scsi_autopm_get_device(struct scsi_device *); +extern void scsi_autopm_put_device(struct scsi_device *); +#else +static inline int scsi_autopm_get_device(struct scsi_device *d) { return 0; } +static inline void scsi_autopm_put_device(struct scsi_device *d) {} +#endif /* CONFIG_PM_RUNTIME */ + static inline int __must_check scsi_device_reprobe(struct scsi_device *sdev) { return device_reprobe(&sdev->sdev_gendev); diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h index 349c7f30720d..7fff94b3b2a8 100644 --- a/include/scsi/scsi_transport_iscsi.h +++ b/include/scsi/scsi_transport_iscsi.h @@ -32,6 +32,7 @@ struct scsi_transport_template; struct iscsi_transport; struct iscsi_endpoint; struct Scsi_Host; +struct scsi_cmnd; struct iscsi_cls_conn; struct iscsi_conn; struct iscsi_task; @@ -255,5 +256,6 @@ extern int iscsi_scan_finished(struct Scsi_Host *shost, unsigned long time); extern struct iscsi_endpoint *iscsi_create_endpoint(int dd_size); extern void iscsi_destroy_endpoint(struct iscsi_endpoint *ep); extern struct iscsi_endpoint *iscsi_lookup_endpoint(u64 handle); +extern int iscsi_block_scsi_eh(struct scsi_cmnd *cmd); #endif |