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1/*2 * This file is part of the Chelsio FCoE driver for Linux.3 *4 * Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved.5 *6 * This software is available to you under a choice of one of two7 * licenses. You may choose to be licensed under the terms of the GNU8 * General Public License (GPL) Version 2, available from the file9 * COPYING in the main directory of this source tree, or the10 * OpenIB.org BSD license below:11 *12 * Redistribution and use in source and binary forms, with or13 * without modification, are permitted provided that the following14 * conditions are met:15 *16 * - Redistributions of source code must retain the above17 * copyright notice, this list of conditions and the following18 * disclaimer.19 *20 * - Redistributions in binary form must reproduce the above21 * copyright notice, this list of conditions and the following22 * disclaimer in the documentation and/or other materials23 * provided with the distribution.24 *25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE32 * SOFTWARE.33 */34 35#ifndef __CSIO_RNODE_H__36#define __CSIO_RNODE_H__37 38#include "csio_defs.h"39 40/* State machine evets */41enum csio_rn_ev {42 CSIO_RNFE_NONE = (uint32_t)0, /* None */43 CSIO_RNFE_LOGGED_IN, /* [N/F]Port login44 * complete.45 */46 CSIO_RNFE_PRLI_DONE, /* PRLI completed */47 CSIO_RNFE_PLOGI_RECV, /* Received PLOGI */48 CSIO_RNFE_PRLI_RECV, /* Received PLOGI */49 CSIO_RNFE_LOGO_RECV, /* Received LOGO */50 CSIO_RNFE_PRLO_RECV, /* Received PRLO */51 CSIO_RNFE_DOWN, /* Rnode is down */52 CSIO_RNFE_CLOSE, /* Close rnode */53 CSIO_RNFE_NAME_MISSING, /* Rnode name missing54 * in name server.55 */56 CSIO_RNFE_MAX_EVENT,57};58 59/* rnode stats */60struct csio_rnode_stats {61 uint32_t n_err; /* error */62 uint32_t n_err_inval; /* invalid parameter */63 uint32_t n_err_nomem; /* error nomem */64 uint32_t n_evt_unexp; /* unexpected event */65 uint32_t n_evt_drop; /* unexpected event */66 uint32_t n_evt_fw[PROTO_ERR_IMPL_LOGO + 1]; /* fw events */67 enum csio_rn_ev n_evt_sm[CSIO_RNFE_MAX_EVENT]; /* State m/c events */68 uint32_t n_lun_rst; /* Number of resets of69 * of LUNs under this70 * target71 */72 uint32_t n_lun_rst_fail; /* Number of LUN reset73 * failures.74 */75 uint32_t n_tgt_rst; /* Number of target resets */76 uint32_t n_tgt_rst_fail; /* Number of target reset77 * failures.78 */79};80 81/* Defines for rnode role */82#define CSIO_RNFR_INITIATOR 0x183#define CSIO_RNFR_TARGET 0x284#define CSIO_RNFR_FABRIC 0x485#define CSIO_RNFR_NS 0x886#define CSIO_RNFR_NPORT 0x1087 88struct csio_rnode {89 struct csio_sm sm; /* State machine -90 * should be the91 * 1st member92 */93 struct csio_lnode *lnp; /* Pointer to owning94 * Lnode */95 uint32_t flowid; /* Firmware ID */96 struct list_head host_cmpl_q; /* SCSI IOs97 * pending to completed98 * to Mid-layer.99 */100 /* FC identifiers for remote node */101 uint32_t nport_id;102 uint16_t fcp_flags; /* FCP Flags */103 uint8_t cur_evt; /* Current event */104 uint8_t prev_evt; /* Previous event */105 uint32_t role; /* Fabric/Target/106 * Initiator/NS107 */108 struct fcoe_rdev_entry *rdev_entry; /* Rdev entry */109 struct csio_service_parms rn_sparm;110 111 /* FC transport attributes */112 struct fc_rport *rport; /* FC transport rport */113 uint32_t supp_classes; /* Supported FC classes */114 uint32_t maxframe_size; /* Max Frame size */115 uint32_t scsi_id; /* Transport given SCSI id */116 117 struct csio_rnode_stats stats; /* Common rnode stats */118};119 120#define csio_rn_flowid(rn) ((rn)->flowid)121#define csio_rn_wwpn(rn) ((rn)->rn_sparm.wwpn)122#define csio_rn_wwnn(rn) ((rn)->rn_sparm.wwnn)123#define csio_rnode_to_lnode(rn) ((rn)->lnp)124 125int csio_is_rnode_ready(struct csio_rnode *rn);126void csio_rnode_state_to_str(struct csio_rnode *rn, int8_t *str);127 128struct csio_rnode *csio_rnode_lookup_portid(struct csio_lnode *, uint32_t);129struct csio_rnode *csio_confirm_rnode(struct csio_lnode *,130 uint32_t, struct fcoe_rdev_entry *);131 132void csio_rnode_fwevt_handler(struct csio_rnode *rn, uint8_t fwevt);133 134void csio_put_rnode(struct csio_lnode *ln, struct csio_rnode *rn);135 136void csio_reg_rnode(struct csio_rnode *);137void csio_unreg_rnode(struct csio_rnode *);138 139void csio_rnode_devloss_handler(struct csio_rnode *);140 141#endif /* ifndef __CSIO_RNODE_H__ */142