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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 | /* * Copyright(c) 2009 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. * * Maintained at www.Open-FCoE.org */ #ifndef _FCOE_H_ #define _FCOE_H_ #include <linux/skbuff.h> #include <linux/kthread.h> #define FCOE_MAX_QUEUE_DEPTH 256 #define FCOE_LOW_QUEUE_DEPTH 32 #define FCOE_WORD_TO_BYTE 4 #define FCOE_VERSION "0.1" #define FCOE_NAME "fcoe" #define FCOE_VENDOR "Open-FCoE.org" #define FCOE_MAX_LUN 255 #define FCOE_MAX_FCP_TARGET 256 #define FCOE_MAX_OUTSTANDING_COMMANDS 1024 #define FCOE_MIN_XID 0x0000 /* the min xid supported by fcoe_sw */ #define FCOE_MAX_XID 0x0FFF /* the max xid supported by fcoe_sw */ unsigned int fcoe_debug_logging; module_param_named(debug_logging, fcoe_debug_logging, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(debug_logging, "a bit mask of logging levels"); #define FCOE_LOGGING 0x01 /* General logging, not categorized */ #define FCOE_NETDEV_LOGGING 0x02 /* Netdevice logging */ #define FCOE_CHECK_LOGGING(LEVEL, CMD) \ do { \ if (unlikely(fcoe_debug_logging & LEVEL)) \ do { \ CMD; \ } while (0); \ } while (0) #define FCOE_DBG(fmt, args...) \ FCOE_CHECK_LOGGING(FCOE_LOGGING, \ printk(KERN_INFO "fcoe: " fmt, ##args);) #define FCOE_NETDEV_DBG(netdev, fmt, args...) \ FCOE_CHECK_LOGGING(FCOE_NETDEV_LOGGING, \ printk(KERN_INFO "fcoe: %s: " fmt, \ netdev->name, ##args);) /* * this percpu struct for fcoe */ struct fcoe_percpu_s { struct task_struct *thread; struct sk_buff_head fcoe_rx_list; struct page *crc_eof_page; int crc_eof_offset; }; /* * an FCoE interface, 1:1 with netdev */ struct fcoe_interface { struct list_head list; struct net_device *netdev; struct packet_type fcoe_packet_type; struct packet_type fip_packet_type; struct fcoe_ctlr ctlr; struct fc_exch_mgr *oem; /* offload exchange manager */ struct kref kref; }; /* * the FCoE private structure that's allocated along with the * Scsi_Host and libfc fc_lport structures */ struct fcoe_port { struct fcoe_interface *fcoe; struct fc_lport *lport; struct sk_buff_head fcoe_pending_queue; u8 fcoe_pending_queue_active; struct timer_list timer; /* queue timer */ struct work_struct destroy_work; /* to prevent rtnl deadlocks */ }; #define fcoe_from_ctlr(fip) container_of(fip, struct fcoe_interface, ctlr) static inline struct net_device *fcoe_netdev(const struct fc_lport *lp) { return ((struct fcoe_port *)lport_priv(lp))->fcoe->netdev; } #endif /* _FCOE_H_ */ |