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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 | /* * 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[RSCN_DEV_LOST]; /* 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__ */ |