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/
usr/
src/
linux-headers-3.0.0-14/
include/
scsi/
fc/
- drwxr-xr-x
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Viewing file:  fc_fcoe.h (3.04 KB) -rw-r--r--Select action/file-type:  ( +) |  ( +) |  ( +) | Code ( +) | Session ( +) |  ( +) | SDB ( +) |  ( +) |  ( +) |  ( +) |  ( +) |  ( +) |
/*
* Copyright(c) 2007 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 _FC_FCOE_H_
#define _FC_FCOE_H_
/*
* FCoE - Fibre Channel over Ethernet.
* See T11 FC-BB-5 Rev 2.00 (09-056v5.pdf)
*/
/*
* Default FC_FCOE_OUI / FC-MAP value.
*/
#define FC_FCOE_OUI 0x0efc00 /* upper 24 bits of FCOE MAC */
/*
* Fabric Login (FLOGI) MAC for non-FIP use. Non-FIP use is deprecated.
*/
#define FC_FCOE_FLOGI_MAC { 0x0e, 0xfc, 0x00, 0xff, 0xff, 0xfe }
#define FC_FCOE_VER 0 /* version */
/*
* Ethernet Addresses based on FC S_ID and D_ID.
* Generated by FC_FCOE_OUI | S_ID/D_ID
*/
#define FC_FCOE_ENCAPS_ID(n) (((u64) FC_FCOE_OUI << 24) | (n))
#define FC_FCOE_DECAPS_ID(n) ((n) >> 24)
/*
* FCoE frame header - 14 bytes
* This follows the VLAN header, which includes the ethertype.
*/
struct fcoe_hdr {
__u8 fcoe_ver; /* version field - upper 4 bits */
__u8 fcoe_resvd[12]; /* reserved - send zero and ignore */
__u8 fcoe_sof; /* start of frame per RFC 3643 */
};
#define FC_FCOE_DECAPS_VER(hp) ((hp)->fcoe_ver >> 4)
#define FC_FCOE_ENCAPS_VER(hp, ver) ((hp)->fcoe_ver = (ver) << 4)
/*
* FCoE CRC & EOF - 8 bytes.
*/
struct fcoe_crc_eof {
__le32 fcoe_crc32; /* CRC for FC packet */
__u8 fcoe_eof; /* EOF from RFC 3643 */
__u8 fcoe_resvd[3]; /* reserved - send zero and ignore */
} __attribute__((packed));
/*
* Minimum FCoE + FC header length
* 14 bytes FCoE header + 24 byte FC header = 38 bytes
*/
#define FCOE_HEADER_LEN 38
/*
* Minimum FCoE frame size
* 14 bytes FCoE header + 24 byte FC header + 8 byte FCoE trailer = 46 bytes
*/
#define FCOE_MIN_FRAME 46
/*
* FCoE Link Error Status Block: T11 FC-BB-5 Rev2.0, Clause 7.10.
*/
struct fcoe_fc_els_lesb {
__be32 lesb_link_fail; /* link failure count */
__be32 lesb_vlink_fail; /* virtual link failure count */
__be32 lesb_miss_fka; /* missing FIP keep-alive count */
__be32 lesb_symb_err; /* symbol error during carrier count */
__be32 lesb_err_block; /* errored block count */
__be32 lesb_fcs_error; /* frame check sequence error count */
};
/*
* fc_fcoe_set_mac - Store OUI + DID into MAC address field.
* @mac: mac address to be set
* @did: fc dest id to use
*/
static inline void fc_fcoe_set_mac(u8 *mac, u8 *did)
{
mac[0] = (u8) (FC_FCOE_OUI >> 16);
mac[1] = (u8) (FC_FCOE_OUI >> 8);
mac[2] = (u8) FC_FCOE_OUI;
mac[3] = did[0];
mac[4] = did[1];
mac[5] = did[2];
}
#endif /* _FC_FCOE_H_ */
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