1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * This file is part of the Chelsio FCoE driver for Linux. 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved. 5*4882a593Smuzhiyun * 6*4882a593Smuzhiyun * This software is available to you under a choice of one of two 7*4882a593Smuzhiyun * licenses. You may choose to be licensed under the terms of the GNU 8*4882a593Smuzhiyun * General Public License (GPL) Version 2, available from the file 9*4882a593Smuzhiyun * COPYING in the main directory of this source tree, or the 10*4882a593Smuzhiyun * OpenIB.org BSD license below: 11*4882a593Smuzhiyun * 12*4882a593Smuzhiyun * Redistribution and use in source and binary forms, with or 13*4882a593Smuzhiyun * without modification, are permitted provided that the following 14*4882a593Smuzhiyun * conditions are met: 15*4882a593Smuzhiyun * 16*4882a593Smuzhiyun * - Redistributions of source code must retain the above 17*4882a593Smuzhiyun * copyright notice, this list of conditions and the following 18*4882a593Smuzhiyun * disclaimer. 19*4882a593Smuzhiyun * 20*4882a593Smuzhiyun * - Redistributions in binary form must reproduce the above 21*4882a593Smuzhiyun * copyright notice, this list of conditions and the following 22*4882a593Smuzhiyun * disclaimer in the documentation and/or other materials 23*4882a593Smuzhiyun * provided with the distribution. 24*4882a593Smuzhiyun * 25*4882a593Smuzhiyun * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 26*4882a593Smuzhiyun * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 27*4882a593Smuzhiyun * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28*4882a593Smuzhiyun * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 29*4882a593Smuzhiyun * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 30*4882a593Smuzhiyun * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 31*4882a593Smuzhiyun * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 32*4882a593Smuzhiyun * SOFTWARE. 33*4882a593Smuzhiyun */ 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun #ifndef __CSIO_RNODE_H__ 36*4882a593Smuzhiyun #define __CSIO_RNODE_H__ 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun #include "csio_defs.h" 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun /* State machine evets */ 41*4882a593Smuzhiyun enum csio_rn_ev { 42*4882a593Smuzhiyun CSIO_RNFE_NONE = (uint32_t)0, /* None */ 43*4882a593Smuzhiyun CSIO_RNFE_LOGGED_IN, /* [N/F]Port login 44*4882a593Smuzhiyun * complete. 45*4882a593Smuzhiyun */ 46*4882a593Smuzhiyun CSIO_RNFE_PRLI_DONE, /* PRLI completed */ 47*4882a593Smuzhiyun CSIO_RNFE_PLOGI_RECV, /* Received PLOGI */ 48*4882a593Smuzhiyun CSIO_RNFE_PRLI_RECV, /* Received PLOGI */ 49*4882a593Smuzhiyun CSIO_RNFE_LOGO_RECV, /* Received LOGO */ 50*4882a593Smuzhiyun CSIO_RNFE_PRLO_RECV, /* Received PRLO */ 51*4882a593Smuzhiyun CSIO_RNFE_DOWN, /* Rnode is down */ 52*4882a593Smuzhiyun CSIO_RNFE_CLOSE, /* Close rnode */ 53*4882a593Smuzhiyun CSIO_RNFE_NAME_MISSING, /* Rnode name missing 54*4882a593Smuzhiyun * in name server. 55*4882a593Smuzhiyun */ 56*4882a593Smuzhiyun CSIO_RNFE_MAX_EVENT, 57*4882a593Smuzhiyun }; 58*4882a593Smuzhiyun 59*4882a593Smuzhiyun /* rnode stats */ 60*4882a593Smuzhiyun struct csio_rnode_stats { 61*4882a593Smuzhiyun uint32_t n_err; /* error */ 62*4882a593Smuzhiyun uint32_t n_err_inval; /* invalid parameter */ 63*4882a593Smuzhiyun uint32_t n_err_nomem; /* error nomem */ 64*4882a593Smuzhiyun uint32_t n_evt_unexp; /* unexpected event */ 65*4882a593Smuzhiyun uint32_t n_evt_drop; /* unexpected event */ 66*4882a593Smuzhiyun uint32_t n_evt_fw[PROTO_ERR_IMPL_LOGO + 1]; /* fw events */ 67*4882a593Smuzhiyun enum csio_rn_ev n_evt_sm[CSIO_RNFE_MAX_EVENT]; /* State m/c events */ 68*4882a593Smuzhiyun uint32_t n_lun_rst; /* Number of resets of 69*4882a593Smuzhiyun * of LUNs under this 70*4882a593Smuzhiyun * target 71*4882a593Smuzhiyun */ 72*4882a593Smuzhiyun uint32_t n_lun_rst_fail; /* Number of LUN reset 73*4882a593Smuzhiyun * failures. 74*4882a593Smuzhiyun */ 75*4882a593Smuzhiyun uint32_t n_tgt_rst; /* Number of target resets */ 76*4882a593Smuzhiyun uint32_t n_tgt_rst_fail; /* Number of target reset 77*4882a593Smuzhiyun * failures. 78*4882a593Smuzhiyun */ 79*4882a593Smuzhiyun }; 80*4882a593Smuzhiyun 81*4882a593Smuzhiyun /* Defines for rnode role */ 82*4882a593Smuzhiyun #define CSIO_RNFR_INITIATOR 0x1 83*4882a593Smuzhiyun #define CSIO_RNFR_TARGET 0x2 84*4882a593Smuzhiyun #define CSIO_RNFR_FABRIC 0x4 85*4882a593Smuzhiyun #define CSIO_RNFR_NS 0x8 86*4882a593Smuzhiyun #define CSIO_RNFR_NPORT 0x10 87*4882a593Smuzhiyun 88*4882a593Smuzhiyun struct csio_rnode { 89*4882a593Smuzhiyun struct csio_sm sm; /* State machine - 90*4882a593Smuzhiyun * should be the 91*4882a593Smuzhiyun * 1st member 92*4882a593Smuzhiyun */ 93*4882a593Smuzhiyun struct csio_lnode *lnp; /* Pointer to owning 94*4882a593Smuzhiyun * Lnode */ 95*4882a593Smuzhiyun uint32_t flowid; /* Firmware ID */ 96*4882a593Smuzhiyun struct list_head host_cmpl_q; /* SCSI IOs 97*4882a593Smuzhiyun * pending to completed 98*4882a593Smuzhiyun * to Mid-layer. 99*4882a593Smuzhiyun */ 100*4882a593Smuzhiyun /* FC identifiers for remote node */ 101*4882a593Smuzhiyun uint32_t nport_id; 102*4882a593Smuzhiyun uint16_t fcp_flags; /* FCP Flags */ 103*4882a593Smuzhiyun uint8_t cur_evt; /* Current event */ 104*4882a593Smuzhiyun uint8_t prev_evt; /* Previous event */ 105*4882a593Smuzhiyun uint32_t role; /* Fabric/Target/ 106*4882a593Smuzhiyun * Initiator/NS 107*4882a593Smuzhiyun */ 108*4882a593Smuzhiyun struct fcoe_rdev_entry *rdev_entry; /* Rdev entry */ 109*4882a593Smuzhiyun struct csio_service_parms rn_sparm; 110*4882a593Smuzhiyun 111*4882a593Smuzhiyun /* FC transport attributes */ 112*4882a593Smuzhiyun struct fc_rport *rport; /* FC transport rport */ 113*4882a593Smuzhiyun uint32_t supp_classes; /* Supported FC classes */ 114*4882a593Smuzhiyun uint32_t maxframe_size; /* Max Frame size */ 115*4882a593Smuzhiyun uint32_t scsi_id; /* Transport given SCSI id */ 116*4882a593Smuzhiyun 117*4882a593Smuzhiyun struct csio_rnode_stats stats; /* Common rnode stats */ 118*4882a593Smuzhiyun }; 119*4882a593Smuzhiyun 120*4882a593Smuzhiyun #define csio_rn_flowid(rn) ((rn)->flowid) 121*4882a593Smuzhiyun #define csio_rn_wwpn(rn) ((rn)->rn_sparm.wwpn) 122*4882a593Smuzhiyun #define csio_rn_wwnn(rn) ((rn)->rn_sparm.wwnn) 123*4882a593Smuzhiyun #define csio_rnode_to_lnode(rn) ((rn)->lnp) 124*4882a593Smuzhiyun 125*4882a593Smuzhiyun int csio_is_rnode_ready(struct csio_rnode *rn); 126*4882a593Smuzhiyun void csio_rnode_state_to_str(struct csio_rnode *rn, int8_t *str); 127*4882a593Smuzhiyun 128*4882a593Smuzhiyun struct csio_rnode *csio_rnode_lookup_portid(struct csio_lnode *, uint32_t); 129*4882a593Smuzhiyun struct csio_rnode *csio_confirm_rnode(struct csio_lnode *, 130*4882a593Smuzhiyun uint32_t, struct fcoe_rdev_entry *); 131*4882a593Smuzhiyun 132*4882a593Smuzhiyun void csio_rnode_fwevt_handler(struct csio_rnode *rn, uint8_t fwevt); 133*4882a593Smuzhiyun 134*4882a593Smuzhiyun void csio_put_rnode(struct csio_lnode *ln, struct csio_rnode *rn); 135*4882a593Smuzhiyun 136*4882a593Smuzhiyun void csio_reg_rnode(struct csio_rnode *); 137*4882a593Smuzhiyun void csio_unreg_rnode(struct csio_rnode *); 138*4882a593Smuzhiyun 139*4882a593Smuzhiyun void csio_rnode_devloss_handler(struct csio_rnode *); 140*4882a593Smuzhiyun 141*4882a593Smuzhiyun #endif /* ifndef __CSIO_RNODE_H__ */ 142