/* SPDX-License-Identifier: GPL-2.0-only */
|
/*
|
* Copyright(c) 2007 Intel Corporation. All rights reserved.
|
*
|
* 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_ */
|
