| Vasu Dev | 9b34ecf | 2009-03-17 11:42:13 -0700 | [diff] [blame] | 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 | #include <linux/module.h> |
| Vasu Dev | 5e80f7f | 2009-03-17 11:42:18 -0700 | [diff] [blame] | 21 | #include <linux/netdevice.h> |
| 22 | |
| 23 | #include <scsi/libfc.h> |
| Vasu Dev | 9b34ecf | 2009-03-17 11:42:13 -0700 | [diff] [blame] | 24 | |
| 25 | MODULE_AUTHOR("Open-FCoE.org"); |
| 26 | MODULE_DESCRIPTION("FCoE"); |
| 27 | MODULE_LICENSE("GPL v2"); |
| Vasu Dev | 5e80f7f | 2009-03-17 11:42:18 -0700 | [diff] [blame] | 28 | |
| 29 | /** |
| 30 | * fcoe_wwn_from_mac() - Converts 48-bit IEEE MAC address to 64-bit FC WWN. |
| 31 | * @mac: mac address |
| 32 | * @scheme: check port |
| 33 | * @port: port indicator for converting |
| 34 | * |
| 35 | * Returns: u64 fc world wide name |
| 36 | */ |
| 37 | u64 fcoe_wwn_from_mac(unsigned char mac[MAX_ADDR_LEN], |
| 38 | unsigned int scheme, unsigned int port) |
| 39 | { |
| 40 | u64 wwn; |
| 41 | u64 host_mac; |
| 42 | |
| 43 | /* The MAC is in NO, so flip only the low 48 bits */ |
| 44 | host_mac = ((u64) mac[0] << 40) | |
| 45 | ((u64) mac[1] << 32) | |
| 46 | ((u64) mac[2] << 24) | |
| 47 | ((u64) mac[3] << 16) | |
| 48 | ((u64) mac[4] << 8) | |
| 49 | (u64) mac[5]; |
| 50 | |
| 51 | WARN_ON(host_mac >= (1ULL << 48)); |
| 52 | wwn = host_mac | ((u64) scheme << 60); |
| 53 | switch (scheme) { |
| 54 | case 1: |
| 55 | WARN_ON(port != 0); |
| 56 | break; |
| 57 | case 2: |
| 58 | WARN_ON(port >= 0xfff); |
| 59 | wwn |= (u64) port << 48; |
| 60 | break; |
| 61 | default: |
| 62 | WARN_ON(1); |
| 63 | break; |
| 64 | } |
| 65 | |
| 66 | return wwn; |
| 67 | } |
| 68 | EXPORT_SYMBOL_GPL(fcoe_wwn_from_mac); |
| 69 | |
| 70 | /** |
| 71 | * fcoe_libfc_config() - sets up libfc related properties for lport |
| 72 | * @lp: ptr to the fc_lport |
| 73 | * @tt: libfc function template |
| 74 | * |
| 75 | * Returns : 0 for success |
| 76 | */ |
| 77 | int fcoe_libfc_config(struct fc_lport *lp, struct libfc_function_template *tt) |
| 78 | { |
| 79 | /* Set the function pointers set by the LLDD */ |
| 80 | memcpy(&lp->tt, tt, sizeof(*tt)); |
| 81 | if (fc_fcp_init(lp)) |
| 82 | return -ENOMEM; |
| 83 | fc_exch_init(lp); |
| 84 | fc_elsct_init(lp); |
| 85 | fc_lport_init(lp); |
| 86 | fc_rport_init(lp); |
| 87 | fc_disc_init(lp); |
| 88 | |
| 89 | return 0; |
| 90 | } |
| 91 | EXPORT_SYMBOL_GPL(fcoe_libfc_config); |