1 /* 2 * Copyright(c) 2009 Intel Corporation. All rights reserved. 3 * 4 * This program is free software; you can redistribute it and/or modify it 5 * under the terms and conditions of the GNU General Public License, 6 * version 2, as published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope it will be useful, but WITHOUT 9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 11 * more details. 12 * 13 * You should have received a copy of the GNU General Public License along with 14 * this program; if not, write to the Free Software Foundation, Inc., 15 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 16 * 17 * Maintained at www.Open-FCoE.org 18 */ 19 20 #ifndef _FCOE_H_ 21 #define _FCOE_H_ 22 23 #include <linux/skbuff.h> 24 #include <linux/kthread.h> 25 26 #define FCOE_MAX_QUEUE_DEPTH 256 27 #define FCOE_MIN_QUEUE_DEPTH 32 28 29 #define FCOE_WORD_TO_BYTE 4 30 31 #define FCOE_VERSION "0.1" 32 #define FCOE_NAME "fcoe" 33 #define FCOE_VENDOR "Open-FCoE.org" 34 35 #define FCOE_MAX_LUN 0xFFFF 36 #define FCOE_MAX_FCP_TARGET 256 37 38 #define FCOE_MAX_OUTSTANDING_COMMANDS 1024 39 40 #define FCOE_MIN_XID 0x0000 /* the min xid supported by fcoe_sw */ 41 #define FCOE_MAX_XID 0x0FFF /* the max xid supported by fcoe_sw */ 42 43 extern unsigned int fcoe_debug_logging; 44 45 #define FCOE_LOGGING 0x01 /* General logging, not categorized */ 46 #define FCOE_NETDEV_LOGGING 0x02 /* Netdevice logging */ 47 48 #define FCOE_CHECK_LOGGING(LEVEL, CMD) \ 49 do { \ 50 if (unlikely(fcoe_debug_logging & LEVEL)) \ 51 do { \ 52 CMD; \ 53 } while (0); \ 54 } while (0) 55 56 #define FCOE_DBG(fmt, args...) \ 57 FCOE_CHECK_LOGGING(FCOE_LOGGING, \ 58 pr_info("fcoe: " fmt, ##args);) 59 60 #define FCOE_NETDEV_DBG(netdev, fmt, args...) \ 61 FCOE_CHECK_LOGGING(FCOE_NETDEV_LOGGING, \ 62 pr_info("fcoe: %s: " fmt, \ 63 netdev->name, ##args);) 64 65 /** 66 * struct fcoe_interface - A FCoE interface 67 * @list: Handle for a list of FCoE interfaces 68 * @netdev: The associated net device 69 * @fcoe_packet_type: FCoE packet type 70 * @fip_packet_type: FIP packet type 71 * @oem: The offload exchange manager for all local port 72 * instances associated with this port 73 * @removed: Indicates fcoe interface removed from net device 74 * @priority: Priority for the FCoE packet (DCB) 75 * This structure is 1:1 with a net device. 76 */ 77 struct fcoe_interface { 78 struct list_head list; 79 struct net_device *netdev; 80 struct net_device *realdev; 81 struct packet_type fcoe_packet_type; 82 struct packet_type fip_packet_type; 83 struct fc_exch_mgr *oem; 84 u8 removed; 85 u8 priority; 86 }; 87 88 #define fcoe_to_ctlr(x) \ 89 (struct fcoe_ctlr *)(((struct fcoe_ctlr *)(x)) - 1) 90 91 #define fcoe_from_ctlr(x) \ 92 ((struct fcoe_interface *)((x) + 1)) 93 94 /** 95 * fcoe_netdev() - Return the net device associated with a local port 96 * @lport: The local port to get the net device from 97 */ 98 static inline struct net_device *fcoe_netdev(const struct fc_lport *lport) 99 { 100 return ((struct fcoe_interface *) 101 ((struct fcoe_port *)lport_priv(lport))->priv)->netdev; 102 } 103 104 #endif /* _FCOE_H_ */ 105