/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2021 Broadcom. All Rights Reserved. The term * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
*/
/** * Fibre Channel port object * * @list_entry: nport list entry * @ref: reference count, each node takes a reference * @release: function to free nport object * @efc: pointer back to efc * @instance_index: unique instance index value * @display_name: port display name * @is_vport: Is NPIV port * @free_req_pending: pending request to free resources * @attached: mark attached if reg VPI succeeds * @p2p_winner: TRUE if we're the point-to-point winner * @domain: pointer back to domain * @wwpn: port wwpn * @wwnn: port wwnn * @tgt_data: target backend private port data * @ini_data: initiator backend private port data * @indicator: VPI * @fc_id: port FC address * @dma: memory for Service Parameters * @wwnn_str: wwpn string * @sli_wwpn: SLI provided wwpn * @sli_wwnn: SLI provided wwnn * @sm: nport state machine context * @lookup: fc_id to node lookup object * @enable_ini: SCSI initiator enabled for this port * @enable_tgt: SCSI target enabled for this port * @enable_rscn: port will be expecting RSCN * @shutting_down: nport in process of shutting down * @p2p_port_id: our port id for point-to-point * @topology: topology: fabric/p2p/unknown * @service_params: login parameters * @p2p_remote_port_id: remote node's port id for point-to-point
*/
/** * Fibre Channel domain object * * This object is a container for the various SLI components needed * to connect to the domain of a FC or FCoE switch * @efc: pointer back to efc * @instance_index: unique instance index value * @display_name: Node display name * @nport_list: linked list of nports associated with this domain * @ref: Reference count, each nport takes a reference * @release: Function to free domain object * @ini_domain: initiator backend private domain data * @tgt_domain: target backend private domain data * @sm: state machine context * @fcf: FC Forwarder table index * @fcf_indicator: FCFI * @indicator: VFI * @nport_count: Number of nports allocated * @dma: memory for Service Parameters * @fcf_wwn: WWN for FCF/switch * @drvsm: driver domain sm context * @attached: set true after attach completes * @is_fc: is FC * @is_loop: is loop topology * @is_nlport: is public loop * @domain_found_pending:A domain found is pending, drec is updated * @req_domain_free: True if domain object should be free'd * @req_accept_frames: set in domain state machine to enable frames * @domain_notify_pend: Set in domain SM to avoid duplicate node event post * @pending_drec: Pending drec if a domain found is pending * @service_params: any nports service parameters * @flogi_service_params:Fabric/P2p service parameters from FLOGI * @lookup: d_id to node lookup object * @nport: Pointer to first (physical) SLI port
*/ struct efc_domain { struct efc *efc; char display_name[EFC_NAME_LENGTH]; struct list_head nport_list; struct kref ref; void (*release)(struct kref *arg); void *ini_domain; void *tgt_domain;
/** * Remote Node object * * This object represents a connection between the SLI port and another * Nx_Port on the fabric. Note this can be either a well known port such * as a F_Port (i.e. ff:ff:fe) or another N_Port. * @indicator: RPI * @fc_id: FC address * @attached: true if attached * @nport: associated SLI port * @node: associated node
*/ struct efc_remote_node {
u32 indicator;
u32 index;
u32 fc_id;
bool attached;
struct efc_nport *nport; void *node;
};
/** * FC Node object * @efc: pointer back to efc structure * @display_name: Node display name * @nort: Assosiated nport pointer. * @hold_frames: hold incoming frames if true * @els_io_enabled: Enable allocating els ios for this node * @els_ios_lock: lock to protect the els ios list * @els_ios_list: ELS I/O's for this node * @ini_node: backend initiator private node data * @tgt_node: backend target private node data * @rnode: Remote node * @sm: state machine context * @evtdepth: current event posting nesting depth * @req_free: this node is to be free'd * @attached: node is attached (REGLOGIN complete) * @fcp_enabled: node is enabled to handle FCP * @rscn_pending: for name server node RSCN is pending * @send_plogi: send PLOGI accept, upon completion of node attach * @send_plogi_acc: TRUE if io_alloc() is enabled. * @send_ls_acc: type of LS acc to send * @ls_acc_io: SCSI IO for LS acc * @ls_acc_oxid: OX_ID for pending accept * @ls_acc_did: D_ID for pending accept * @shutdown_reason: reason for node shutdown * @sparm_dma_buf: service parameters buffer * @service_params: plogi/acc frame from remote device * @pend_frames_lock: lock for inbound pending frames list * @pend_frames: inbound pending frames list * @pend_frames_processed:count of frames processed in hold frames interval * @ox_id_in_use: used to verify one at a time us of ox_id * @els_retries_remaining:for ELS, number of retries remaining * @els_req_cnt: number of outstanding ELS requests * @els_cmpl_cnt: number of outstanding ELS completions * @abort_cnt: Abort counter for debugging purpos * @current_state_name: current node state * @prev_state_name: previous node state * @current_evt: current event * @prev_evt: previous event * @targ: node is target capable * @init: node is init capable * @refound: Handle node refound case when node is being deleted * @els_io_pend_list: list of pending (not yet processed) ELS IOs * @els_io_active_list: list of active (processed) ELS IOs * @nodedb_state: Node debugging, saved state * @gidpt_delay_timer: GIDPT delay timer * @time_last_gidpt_msec:Start time of last target RSCN GIDPT * @wwnn: remote port WWNN * @wwpn: remote port WWPN
*/ struct efc_node { struct efc *efc; char display_name[EFC_NAME_LENGTH]; struct efc_nport *nport; struct kref ref; void (*release)(struct kref *arg); bool hold_frames; bool els_io_enabled; bool send_plogi_acc; bool send_plogi; bool rscn_pending; bool fcp_enabled; bool attached; bool req_free;
/** * NPIV port * * Collection of the information required to restore a virtual port across * link events * @wwnn: node name * @wwpn: port name * @fc_id: port id * @tgt_data: target backend pointer * @ini_data: initiator backend pointe * @nport: Used to match record after attaching for update *
*/
union efc_disc_io_param { struct efc_io_els_params els; struct efc_io_ct_params ct;
};
struct efc_disc_io { struct efc_dma req; /* send buffer */ struct efc_dma rsp; /* receive buffer */ enum efc_disc_io_type io_type; /* EFC_DISC_IO_TYPE enum*/
u16 xmit_len; /* Length of els request*/
u16 rsp_len; /* Max length of rsps to be rcvd */
u32 rpi; /* Registered RPI */
u32 vpi; /* VPI for this nport */
u32 s_id;
u32 d_id; bool rpi_registered; /* if false, use tmp RPI */ union efc_disc_io_param iparam;
};
/* Return value indiacating the sequence can not be freed */ #define EFC_HW_SEQ_HOLD 0 /* Return value indiacating the sequence can be freed */ #define EFC_HW_SEQ_FREE 1
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