/* * This file is part of the Chelsio FCoE driver for Linux. * * Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifndef __CSIO_RNODE_H__ #define __CSIO_RNODE_H__ #include "csio_defs.h" /* State machine evets */ enum csio_rn_ev { CSIO_RNFE_NONE = (uint32_t)0, /* None */ CSIO_RNFE_LOGGED_IN, /* [N/F]Port login * complete. */ CSIO_RNFE_PRLI_DONE, /* PRLI completed */ CSIO_RNFE_PLOGI_RECV, /* Received PLOGI */ CSIO_RNFE_PRLI_RECV, /* Received PLOGI */ CSIO_RNFE_LOGO_RECV, /* Received LOGO */ CSIO_RNFE_PRLO_RECV, /* Received PRLO */ CSIO_RNFE_DOWN, /* Rnode is down */ CSIO_RNFE_CLOSE, /* Close rnode */ CSIO_RNFE_NAME_MISSING, /* Rnode name missing * in name server. */ CSIO_RNFE_MAX_EVENT, }; /* rnode stats */ struct csio_rnode_stats { uint32_t n_err; /* error */ uint32_t n_err_inval; /* invalid parameter */ uint32_t n_err_nomem; /* error nomem */ uint32_t n_evt_unexp; /* unexpected event */ uint32_t n_evt_drop; /* unexpected event */ uint32_t n_evt_fw[PROTO_ERR_IMPL_LOGO + 1]; /* fw events */ enum csio_rn_ev n_evt_sm[CSIO_RNFE_MAX_EVENT]; /* State m/c events */ uint32_t n_lun_rst; /* Number of resets of * of LUNs under this * target */ uint32_t n_lun_rst_fail; /* Number of LUN reset * failures. */ uint32_t n_tgt_rst; /* Number of target resets */ uint32_t n_tgt_rst_fail; /* Number of target reset * failures. */ }; /* Defines for rnode role */ #define CSIO_RNFR_INITIATOR 0x1 #define CSIO_RNFR_TARGET 0x2 #define CSIO_RNFR_FABRIC 0x4 #define CSIO_RNFR_NS 0x8 #define CSIO_RNFR_NPORT 0x10 struct csio_rnode { struct csio_sm sm; /* State machine - * should be the * 1st member */ struct csio_lnode *lnp; /* Pointer to owning * Lnode */ uint32_t flowid; /* Firmware ID */ struct list_head host_cmpl_q; /* SCSI IOs * pending to completed * to Mid-layer. */ /* FC identifiers for remote node */ uint32_t nport_id; uint16_t fcp_flags; /* FCP Flags */ uint8_t cur_evt; /* Current event */ uint8_t prev_evt; /* Previous event */ uint32_t role; /* Fabric/Target/ * Initiator/NS */ struct fcoe_rdev_entry *rdev_entry; /* Rdev entry */ struct csio_service_parms rn_sparm; /* FC transport attributes */ struct fc_rport *rport; /* FC transport rport */ uint32_t supp_classes; /* Supported FC classes */ uint32_t maxframe_size; /* Max Frame size */ uint32_t scsi_id; /* Transport given SCSI id */ struct csio_rnode_stats stats; /* Common rnode stats */ }; #define csio_rn_flowid(rn) ((rn)->flowid) #define csio_rn_wwpn(rn) ((rn)->rn_sparm.wwpn) #define csio_rn_wwnn(rn) ((rn)->rn_sparm.wwnn) #define csio_rnode_to_lnode(rn) ((rn)->lnp) int csio_is_rnode_ready(struct csio_rnode *rn); void csio_rnode_state_to_str(struct csio_rnode *rn, int8_t *str); struct csio_rnode *csio_rnode_lookup_portid(struct csio_lnode *, uint32_t); struct csio_rnode *csio_confirm_rnode(struct csio_lnode *, uint32_t, struct fcoe_rdev_entry *); void csio_rnode_fwevt_handler(struct csio_rnode *rn, uint8_t fwevt); void csio_put_rnode(struct csio_lnode *ln, struct csio_rnode *rn); void csio_reg_rnode(struct csio_rnode *); void csio_unreg_rnode(struct csio_rnode *); void csio_rnode_devloss_handler(struct csio_rnode *); #endif /* ifndef __CSIO_RNODE_H__ */
