1a3667aaeSNaresh Kumar Inna /* 2a3667aaeSNaresh Kumar Inna * This file is part of the Chelsio FCoE driver for Linux. 3a3667aaeSNaresh Kumar Inna * 4a3667aaeSNaresh Kumar Inna * Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved. 5a3667aaeSNaresh Kumar Inna * 6a3667aaeSNaresh Kumar Inna * This software is available to you under a choice of one of two 7a3667aaeSNaresh Kumar Inna * licenses. You may choose to be licensed under the terms of the GNU 8a3667aaeSNaresh Kumar Inna * General Public License (GPL) Version 2, available from the file 9a3667aaeSNaresh Kumar Inna * COPYING in the main directory of this source tree, or the 10a3667aaeSNaresh Kumar Inna * OpenIB.org BSD license below: 11a3667aaeSNaresh Kumar Inna * 12a3667aaeSNaresh Kumar Inna * Redistribution and use in source and binary forms, with or 13a3667aaeSNaresh Kumar Inna * without modification, are permitted provided that the following 14a3667aaeSNaresh Kumar Inna * conditions are met: 15a3667aaeSNaresh Kumar Inna * 16a3667aaeSNaresh Kumar Inna * - Redistributions of source code must retain the above 17a3667aaeSNaresh Kumar Inna * copyright notice, this list of conditions and the following 18a3667aaeSNaresh Kumar Inna * disclaimer. 19a3667aaeSNaresh Kumar Inna * 20a3667aaeSNaresh Kumar Inna * - Redistributions in binary form must reproduce the above 21a3667aaeSNaresh Kumar Inna * copyright notice, this list of conditions and the following 22a3667aaeSNaresh Kumar Inna * disclaimer in the documentation and/or other materials 23a3667aaeSNaresh Kumar Inna * provided with the distribution. 24a3667aaeSNaresh Kumar Inna * 25a3667aaeSNaresh Kumar Inna * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 26a3667aaeSNaresh Kumar Inna * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 27a3667aaeSNaresh Kumar Inna * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28a3667aaeSNaresh Kumar Inna * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 29a3667aaeSNaresh Kumar Inna * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 30a3667aaeSNaresh Kumar Inna * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 31a3667aaeSNaresh Kumar Inna * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 32a3667aaeSNaresh Kumar Inna * SOFTWARE. 33a3667aaeSNaresh Kumar Inna */ 34a3667aaeSNaresh Kumar Inna 35a3667aaeSNaresh Kumar Inna #ifndef __CSIO_RNODE_H__ 36a3667aaeSNaresh Kumar Inna #define __CSIO_RNODE_H__ 37a3667aaeSNaresh Kumar Inna 38a3667aaeSNaresh Kumar Inna #include "csio_defs.h" 39a3667aaeSNaresh Kumar Inna 40a3667aaeSNaresh Kumar Inna /* State machine evets */ 41a3667aaeSNaresh Kumar Inna enum csio_rn_ev { 42a3667aaeSNaresh Kumar Inna CSIO_RNFE_NONE = (uint32_t)0, /* None */ 43a3667aaeSNaresh Kumar Inna CSIO_RNFE_LOGGED_IN, /* [N/F]Port login 44a3667aaeSNaresh Kumar Inna * complete. 45a3667aaeSNaresh Kumar Inna */ 46a3667aaeSNaresh Kumar Inna CSIO_RNFE_PRLI_DONE, /* PRLI completed */ 47a3667aaeSNaresh Kumar Inna CSIO_RNFE_PLOGI_RECV, /* Received PLOGI */ 48a3667aaeSNaresh Kumar Inna CSIO_RNFE_PRLI_RECV, /* Received PLOGI */ 49a3667aaeSNaresh Kumar Inna CSIO_RNFE_LOGO_RECV, /* Received LOGO */ 50a3667aaeSNaresh Kumar Inna CSIO_RNFE_PRLO_RECV, /* Received PRLO */ 51a3667aaeSNaresh Kumar Inna CSIO_RNFE_DOWN, /* Rnode is down */ 52a3667aaeSNaresh Kumar Inna CSIO_RNFE_CLOSE, /* Close rnode */ 53a3667aaeSNaresh Kumar Inna CSIO_RNFE_NAME_MISSING, /* Rnode name missing 54a3667aaeSNaresh Kumar Inna * in name server. 55a3667aaeSNaresh Kumar Inna */ 56a3667aaeSNaresh Kumar Inna CSIO_RNFE_MAX_EVENT, 57a3667aaeSNaresh Kumar Inna }; 58a3667aaeSNaresh Kumar Inna 59a3667aaeSNaresh Kumar Inna /* rnode stats */ 60a3667aaeSNaresh Kumar Inna struct csio_rnode_stats { 61a3667aaeSNaresh Kumar Inna uint32_t n_err; /* error */ 62a3667aaeSNaresh Kumar Inna uint32_t n_err_inval; /* invalid parameter */ 63a3667aaeSNaresh Kumar Inna uint32_t n_err_nomem; /* error nomem */ 64a3667aaeSNaresh Kumar Inna uint32_t n_evt_unexp; /* unexpected event */ 65a3667aaeSNaresh Kumar Inna uint32_t n_evt_drop; /* unexpected event */ 66*4f8d1bd2SDan Carpenter uint32_t n_evt_fw[PROTO_ERR_IMPL_LOGO + 1]; /* fw events */ 67a3667aaeSNaresh Kumar Inna enum csio_rn_ev n_evt_sm[CSIO_RNFE_MAX_EVENT]; /* State m/c events */ 68a3667aaeSNaresh Kumar Inna uint32_t n_lun_rst; /* Number of resets of 69a3667aaeSNaresh Kumar Inna * of LUNs under this 70a3667aaeSNaresh Kumar Inna * target 71a3667aaeSNaresh Kumar Inna */ 72a3667aaeSNaresh Kumar Inna uint32_t n_lun_rst_fail; /* Number of LUN reset 73a3667aaeSNaresh Kumar Inna * failures. 74a3667aaeSNaresh Kumar Inna */ 75a3667aaeSNaresh Kumar Inna uint32_t n_tgt_rst; /* Number of target resets */ 76a3667aaeSNaresh Kumar Inna uint32_t n_tgt_rst_fail; /* Number of target reset 77a3667aaeSNaresh Kumar Inna * failures. 78a3667aaeSNaresh Kumar Inna */ 79a3667aaeSNaresh Kumar Inna }; 80a3667aaeSNaresh Kumar Inna 81a3667aaeSNaresh Kumar Inna /* Defines for rnode role */ 82a3667aaeSNaresh Kumar Inna #define CSIO_RNFR_INITIATOR 0x1 83a3667aaeSNaresh Kumar Inna #define CSIO_RNFR_TARGET 0x2 84a3667aaeSNaresh Kumar Inna #define CSIO_RNFR_FABRIC 0x4 85a3667aaeSNaresh Kumar Inna #define CSIO_RNFR_NS 0x8 86a3667aaeSNaresh Kumar Inna #define CSIO_RNFR_NPORT 0x10 87a3667aaeSNaresh Kumar Inna 88a3667aaeSNaresh Kumar Inna struct csio_rnode { 89a3667aaeSNaresh Kumar Inna struct csio_sm sm; /* State machine - 90a3667aaeSNaresh Kumar Inna * should be the 91a3667aaeSNaresh Kumar Inna * 1st member 92a3667aaeSNaresh Kumar Inna */ 93a3667aaeSNaresh Kumar Inna struct csio_lnode *lnp; /* Pointer to owning 94a3667aaeSNaresh Kumar Inna * Lnode */ 95a3667aaeSNaresh Kumar Inna uint32_t flowid; /* Firmware ID */ 96a3667aaeSNaresh Kumar Inna struct list_head host_cmpl_q; /* SCSI IOs 97a3667aaeSNaresh Kumar Inna * pending to completed 98a3667aaeSNaresh Kumar Inna * to Mid-layer. 99a3667aaeSNaresh Kumar Inna */ 100a3667aaeSNaresh Kumar Inna /* FC identifiers for remote node */ 101a3667aaeSNaresh Kumar Inna uint32_t nport_id; 102a3667aaeSNaresh Kumar Inna uint16_t fcp_flags; /* FCP Flags */ 103a3667aaeSNaresh Kumar Inna uint8_t cur_evt; /* Current event */ 104a3667aaeSNaresh Kumar Inna uint8_t prev_evt; /* Previous event */ 105a3667aaeSNaresh Kumar Inna uint32_t role; /* Fabric/Target/ 106a3667aaeSNaresh Kumar Inna * Initiator/NS 107a3667aaeSNaresh Kumar Inna */ 108a3667aaeSNaresh Kumar Inna struct fcoe_rdev_entry *rdev_entry; /* Rdev entry */ 109a3667aaeSNaresh Kumar Inna struct csio_service_parms rn_sparm; 110a3667aaeSNaresh Kumar Inna 111a3667aaeSNaresh Kumar Inna /* FC transport attributes */ 112a3667aaeSNaresh Kumar Inna struct fc_rport *rport; /* FC transport rport */ 113a3667aaeSNaresh Kumar Inna uint32_t supp_classes; /* Supported FC classes */ 114a3667aaeSNaresh Kumar Inna uint32_t maxframe_size; /* Max Frame size */ 115a3667aaeSNaresh Kumar Inna uint32_t scsi_id; /* Transport given SCSI id */ 116a3667aaeSNaresh Kumar Inna 117a3667aaeSNaresh Kumar Inna struct csio_rnode_stats stats; /* Common rnode stats */ 118a3667aaeSNaresh Kumar Inna }; 119a3667aaeSNaresh Kumar Inna 120a3667aaeSNaresh Kumar Inna #define csio_rn_flowid(rn) ((rn)->flowid) 121a3667aaeSNaresh Kumar Inna #define csio_rn_wwpn(rn) ((rn)->rn_sparm.wwpn) 122a3667aaeSNaresh Kumar Inna #define csio_rn_wwnn(rn) ((rn)->rn_sparm.wwnn) 123a3667aaeSNaresh Kumar Inna #define csio_rnode_to_lnode(rn) ((rn)->lnp) 124a3667aaeSNaresh Kumar Inna 125a3667aaeSNaresh Kumar Inna int csio_is_rnode_ready(struct csio_rnode *rn); 126a3667aaeSNaresh Kumar Inna void csio_rnode_state_to_str(struct csio_rnode *rn, int8_t *str); 127a3667aaeSNaresh Kumar Inna 128a3667aaeSNaresh Kumar Inna struct csio_rnode *csio_rnode_lookup_portid(struct csio_lnode *, uint32_t); 129a3667aaeSNaresh Kumar Inna struct csio_rnode *csio_confirm_rnode(struct csio_lnode *, 130a3667aaeSNaresh Kumar Inna uint32_t, struct fcoe_rdev_entry *); 131a3667aaeSNaresh Kumar Inna 132a3667aaeSNaresh Kumar Inna void csio_rnode_fwevt_handler(struct csio_rnode *rn, uint8_t fwevt); 133a3667aaeSNaresh Kumar Inna 134a3667aaeSNaresh Kumar Inna void csio_put_rnode(struct csio_lnode *ln, struct csio_rnode *rn); 135a3667aaeSNaresh Kumar Inna 136a3667aaeSNaresh Kumar Inna void csio_reg_rnode(struct csio_rnode *); 137a3667aaeSNaresh Kumar Inna void csio_unreg_rnode(struct csio_rnode *); 138a3667aaeSNaresh Kumar Inna 139a3667aaeSNaresh Kumar Inna void csio_rnode_devloss_handler(struct csio_rnode *); 140a3667aaeSNaresh Kumar Inna 141a3667aaeSNaresh Kumar Inna #endif /* ifndef __CSIO_RNODE_H__ */ 142