0x10000040 %l4(&T?Jq@?p.\ Jbѿ \u"lm_J 2BP,.4☴o h+l4( (  fB- Am_I|+  l7   h ;7O/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2008-2009 Cisco Systems, Inc. All rights reserved. * Copyright (c) 2007-2008 Intel Corporation. All rights reserved. * * Maintained at www.Open-FCoE.org */ #ifndef _LIBFCOE_H #define _LIBFCOE_H #include #include #include #include #include #include #include #include #include #include #define FCOE_MAX_CMD_LEN 16 /* Supported CDB length */ /* * Max MTU for FCoE: 14 (FCoE header) + 24 (FC header) + 2112 (max FC payload) * + 4 (FC CRC) + 4 (FCoE trailer) = 2158 bytes */ #define FCOE_MTU 2158 /* * FIP tunable parameters. */ #define FCOE_CTLR_START_DELAY 2000 /* mS after first adv. to choose FCF */ #define FCOE_CTLR_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. * @FIP_ST_DISABLED: controller has been disabled or not yet enabled. * @FIP_ST_LINK_WAIT: the physical link is down or unusable. * @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, FIP_ST_LINK_WAIT, 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. */ enum fip_mode { FIP_MODE_AUTO, FIP_MODE_NON_FIP, FIP_MODE_FABRIC, FIP_MODE_VN2VN, }; /** * struct fcoe_ctlr - FCoE Controller and FIP state * @state: internal FIP state for network link and FIP or non-FIP mode. * @mode: LLD-selected mode. * @lp: &fc_lport: libfc local port. * @sel_fcf: currently selected FCF, or NULL. * @fcfs: list of discovered FCFs. * @cdev: (Optional) pointer to sysfs fcoe_ctlr_device. * @fcf_count: number of discovered FCF entries. * @sol_time: time when a multicast solicitation was last sent. * @sel_time: time after which to select an FCF. * @port_ka_time: time of next port keep-alive. * @ctlr_ka_time: time of next controller keep-alive. * @timer: timer struct used for all delayed events. * @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. * @flogi_req: clone of FLOGI request sent * @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_req_send: send of FLOGI requested * @flogi_count: number of FLOGI attempts in AUTO mode. * @map_dest: use the FC_MAP mode for destination MAC addresses. * @fip_resp: start FIP VLAN discovery responder * @spma: supports SPMA server-provided MACs mode * @probe_tries: number of FC_IDs probed * @priority: DCBx FCoE APP priority * @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 change