drivers/ieee1394/eth1394.h - kernel/msm-4.9 - Gitiles

 /*
  * eth1394.h -- Ethernet driver for Linux IEEE-1394 Subsystem
  *
  * Copyright (C) 2000 Bonin Franck <boninf@free.fr>
  *           (C) 2001 Ben Collins <bcollins@debian.org>
  *
  * Mainly based on work by Emanuel Pirker and Andreas E. Bombe
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * This program is distributed in the hope that 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */

 #ifndef __ETH1394_H
 #define __ETH1394_H

 #include <linux/netdevice.h>

 #include "ieee1394.h"

 /* Register for incoming packets. This is 4096 bytes, which supports up to
  * S3200 (per Table 16-3 of IEEE 1394b-2002). */
 #define ETHER1394_REGION_ADDR_LEN	4096

 /* GASP identifier numbers for IPv4 over IEEE 1394 */
 #define ETHER1394_GASP_SPECIFIER_ID	0x00005E
 #define ETHER1394_GASP_SPECIFIER_ID_HI	((ETHER1394_GASP_SPECIFIER_ID >> 8) & 0xffff)
 #define ETHER1394_GASP_SPECIFIER_ID_LO	(ETHER1394_GASP_SPECIFIER_ID & 0xff)
 #define ETHER1394_GASP_VERSION		1

 #define ETHER1394_GASP_OVERHEAD (2 * sizeof(quadlet_t))  /* GASP header overhead */

 #define ETHER1394_GASP_BUFFERS 16

 /* rawiso buffer size - due to a limitation in rawiso, we must limit each
  * GASP buffer to be less than PAGE_SIZE. */
 #define ETHER1394_ISO_BUF_SIZE	ETHER1394_GASP_BUFFERS *                        \
 				   min((unsigned int)PAGE_SIZE,                 \
 				       2 * (1U << (priv->host->csr.max_rec + 1)))

 /* Node set == 64 */
 #define NODE_SET			(ALL_NODES + 1)

 enum eth1394_bc_states { ETHER1394_BC_ERROR,
 			 ETHER1394_BC_RUNNING,
 			 ETHER1394_BC_STOPPED };


 /* Private structure for our ethernet driver */
 struct eth1394_priv {
 	struct net_device_stats stats;	/* Device stats			 */
 	struct hpsb_host *host;		/* The card for this dev	 */
 	u16 bc_maxpayload;		/* Max broadcast payload	 */
 	u8 bc_sspd;			/* Max broadcast speed		 */
 	u64 local_fifo;			/* Local FIFO Address		 */
 	spinlock_t lock;		/* Private lock			 */
 	int broadcast_channel;		/* Async stream Broadcast Channel */
 	enum eth1394_bc_states bc_state; /* broadcast channel state	 */
 	struct hpsb_iso *iso;		/* Async stream recv handle	 */
 	int bc_dgl;			/* Outgoing broadcast datagram label */
 	struct list_head ip_node_list;	/* List of IP capable nodes	 */
 	struct unit_directory *ud_list[ALL_NODES]; /* Cached unit dir list */
 };


 /* Define a fake hardware header format for the networking core.  Note that
  * header size cannot exceed 16 bytes as that is the size of the header cache.
  * Also, we do not need the source address in the header so we omit it and
  * keep the header to under 16 bytes */
 #define ETH1394_ALEN (8)
 #define ETH1394_HLEN (10)

 struct eth1394hdr {
 	unsigned char	h_dest[ETH1394_ALEN];	/* destination eth1394 addr	*/
 	unsigned short	h_proto;		/* packet type ID field	*/
 }  __attribute__((packed));

 #ifdef __KERNEL__
 #include <linux/skbuff.h>

 static inline struct eth1394hdr *eth1394_hdr(const struct sk_buff *skb)
 {
 	return (struct eth1394hdr *)skb->mac.raw;
 }
 #endif

 typedef enum {ETH1394_GASP, ETH1394_WRREQ} eth1394_tx_type;

 /* IP1394 headers */
 #include <asm/byteorder.h>

 /* Unfragmented */
 #if defined __BIG_ENDIAN_BITFIELD
 struct eth1394_uf_hdr {
 	u16 lf:2;
 	u16 res:14;
 	u16 ether_type;		/* Ethernet packet type */
 } __attribute__((packed));
 #elif defined __LITTLE_ENDIAN_BITFIELD
 struct eth1394_uf_hdr {
 	u16 res:14;
 	u16 lf:2;
 	u16 ether_type;
 } __attribute__((packed));
 #else
 #error Unknown bit field type
 #endif

 /* First fragment */
 #if defined __BIG_ENDIAN_BITFIELD
 struct eth1394_ff_hdr {
 	u16 lf:2;
 	u16 res1:2;
 	u16 dg_size:12;		/* Datagram size */
 	u16 ether_type;		/* Ethernet packet type */
 	u16 dgl;		/* Datagram label */
 	u16 res2;
 } __attribute__((packed));
 #elif defined __LITTLE_ENDIAN_BITFIELD
 struct eth1394_ff_hdr {
 	u16 dg_size:12;
 	u16 res1:2;
 	u16 lf:2;
 	u16 ether_type;
 	u16 dgl;
 	u16 res2;
 } __attribute__((packed));
 #else
 #error Unknown bit field type
 #endif

 /* XXX: Subsequent fragments, including last */
 #if defined __BIG_ENDIAN_BITFIELD
 struct eth1394_sf_hdr {
 	u16 lf:2;
 	u16 res1:2;
 	u16 dg_size:12;		/* Datagram size */
 	u16 res2:4;
 	u16 fg_off:12;		/* Fragment offset */
 	u16 dgl;		/* Datagram label */
 	u16 res3;
 } __attribute__((packed));
 #elif defined __LITTLE_ENDIAN_BITFIELD
 struct eth1394_sf_hdr {
 	u16 dg_size:12;
 	u16 res1:2;
 	u16 lf:2;
 	u16 fg_off:12;
 	u16 res2:4;
 	u16 dgl;
 	u16 res3;
 } __attribute__((packed));
 #else
 #error Unknown bit field type
 #endif

 #if defined __BIG_ENDIAN_BITFIELD
 struct eth1394_common_hdr {
 	u16 lf:2;
 	u16 pad1:14;
 } __attribute__((packed));
 #elif defined __LITTLE_ENDIAN_BITFIELD
 struct eth1394_common_hdr {
 	u16 pad1:14;
 	u16 lf:2;
 } __attribute__((packed));
 #else
 #error Unknown bit field type
 #endif

 struct eth1394_hdr_words {
 	u16 word1;
 	u16 word2;
 	u16 word3;
 	u16 word4;
 };

 union eth1394_hdr {
 	struct eth1394_common_hdr common;
 	struct eth1394_uf_hdr uf;
 	struct eth1394_ff_hdr ff;
 	struct eth1394_sf_hdr sf;
 	struct eth1394_hdr_words words;
 };

 /* End of IP1394 headers */

 /* Fragment types */
 #define ETH1394_HDR_LF_UF	0	/* unfragmented		*/
 #define ETH1394_HDR_LF_FF	1	/* first fragment	*/
 #define ETH1394_HDR_LF_LF	2	/* last fragment	*/
 #define ETH1394_HDR_LF_IF	3	/* interior fragment	*/

 #define IP1394_HW_ADDR_LEN	16	/* As per RFC		*/

 /* Our arp packet (ARPHRD_IEEE1394) */
 struct eth1394_arp {
 	u16 hw_type;		/* 0x0018	*/
 	u16 proto_type;		/* 0x0806	*/
 	u8 hw_addr_len;		/* 16 		*/
 	u8 ip_addr_len;		/* 4		*/
 	u16 opcode;		/* ARP Opcode	*/
 	/* Above is exactly the same format as struct arphdr */

 	u64 s_uniq_id;		/* Sender's 64bit EUI			*/
 	u8 max_rec;		/* Sender's max packet size		*/
 	u8 sspd;		/* Sender's max speed			*/
 	u16 fifo_hi;		/* hi 16bits of sender's FIFO addr	*/
 	u32 fifo_lo;		/* lo 32bits of sender's FIFO addr	*/
 	u32 sip;		/* Sender's IP Address			*/
 	u32 tip;		/* IP Address of requested hw addr	*/
 };

 /* Network timeout */
 #define ETHER1394_TIMEOUT	100000

 /* This is our task struct. It's used for the packet complete callback.  */
 struct packet_task {
 	struct sk_buff *skb;
 	int outstanding_pkts;
 	eth1394_tx_type tx_type;
 	int max_payload;
 	struct hpsb_packet *packet;
 	struct eth1394_priv *priv;
 	union eth1394_hdr hdr;
 	u64 addr;
 	u16 dest_node;
 };

 #endif /* __ETH1394_H */
	/*
	* eth1394.h -- Ethernet driver for Linux IEEE-1394 Subsystem
	*
	* Copyright (C) 2000 Bonin Franck <boninf@free.fr>
	* (C) 2001 Ben Collins <bcollins@debian.org>
	*
	* Mainly based on work by Emanuel Pirker and Andreas E. Bombe
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; either version 2 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
	*/

	#ifndef __ETH1394_H
	#define __ETH1394_H

	#include <linux/netdevice.h>

	#include "ieee1394.h"

	/* Register for incoming packets. This is 4096 bytes, which supports up to
	* S3200 (per Table 16-3 of IEEE 1394b-2002). */
	#define ETHER1394_REGION_ADDR_LEN 4096

	/* GASP identifier numbers for IPv4 over IEEE 1394 */
	#define ETHER1394_GASP_SPECIFIER_ID 0x00005E
	#define ETHER1394_GASP_SPECIFIER_ID_HI ((ETHER1394_GASP_SPECIFIER_ID >> 8) & 0xffff)
	#define ETHER1394_GASP_SPECIFIER_ID_LO (ETHER1394_GASP_SPECIFIER_ID & 0xff)
	#define ETHER1394_GASP_VERSION 1

	#define ETHER1394_GASP_OVERHEAD (2 * sizeof(quadlet_t)) /* GASP header overhead */

	#define ETHER1394_GASP_BUFFERS 16

	/* rawiso buffer size - due to a limitation in rawiso, we must limit each
	* GASP buffer to be less than PAGE_SIZE. */
	#define ETHER1394_ISO_BUF_SIZE ETHER1394_GASP_BUFFERS * \
	min((unsigned int)PAGE_SIZE, \
	2 * (1U << (priv->host->csr.max_rec + 1)))

	/* Node set == 64 */
	#define NODE_SET (ALL_NODES + 1)

	enum eth1394_bc_states { ETHER1394_BC_ERROR,
	ETHER1394_BC_RUNNING,
	ETHER1394_BC_STOPPED };


	/* Private structure for our ethernet driver */
	struct eth1394_priv {
	struct net_device_stats stats; /* Device stats */
	struct hpsb_host host; / The card for this dev */
	u16 bc_maxpayload; /* Max broadcast payload */
	u8 bc_sspd; /* Max broadcast speed */
	u64 local_fifo; /* Local FIFO Address */
	spinlock_t lock; /* Private lock */
	int broadcast_channel; /* Async stream Broadcast Channel */
	enum eth1394_bc_states bc_state; /* broadcast channel state */
	struct hpsb_iso iso; / Async stream recv handle */
	int bc_dgl; /* Outgoing broadcast datagram label */
	struct list_head ip_node_list; /* List of IP capable nodes */
	struct unit_directory ud_list[ALL_NODES]; / Cached unit dir list */
	};


	/* Define a fake hardware header format for the networking core. Note that
	* header size cannot exceed 16 bytes as that is the size of the header cache.
	* Also, we do not need the source address in the header so we omit it and
	* keep the header to under 16 bytes */
	#define ETH1394_ALEN (8)
	#define ETH1394_HLEN (10)

	struct eth1394hdr {
	unsigned char h_dest[ETH1394_ALEN]; /* destination eth1394 addr */
	unsigned short h_proto; /* packet type ID field */
	} __attribute__((packed));

	#ifdef __KERNEL__
	#include <linux/skbuff.h>

	static inline struct eth1394hdr eth1394_hdr(const struct sk_buff skb)
	{
	return (struct eth1394hdr *)skb->mac.raw;
	}
	#endif

	typedef enum {ETH1394_GASP, ETH1394_WRREQ} eth1394_tx_type;

	/* IP1394 headers */
	#include <asm/byteorder.h>

	/* Unfragmented */
	#if defined __BIG_ENDIAN_BITFIELD
	struct eth1394_uf_hdr {
	u16 lf:2;
	u16 res:14;
	u16 ether_type; /* Ethernet packet type */
	} __attribute__((packed));
	#elif defined __LITTLE_ENDIAN_BITFIELD
	struct eth1394_uf_hdr {
	u16 res:14;
	u16 lf:2;
	u16 ether_type;
	} __attribute__((packed));
	#else
	#error Unknown bit field type
	#endif

	/* First fragment */
	#if defined __BIG_ENDIAN_BITFIELD
	struct eth1394_ff_hdr {
	u16 lf:2;
	u16 res1:2;
	u16 dg_size:12; /* Datagram size */
	u16 ether_type; /* Ethernet packet type */
	u16 dgl; /* Datagram label */
	u16 res2;
	} __attribute__((packed));
	#elif defined __LITTLE_ENDIAN_BITFIELD
	struct eth1394_ff_hdr {
	u16 dg_size:12;
	u16 res1:2;
	u16 lf:2;
	u16 ether_type;
	u16 dgl;
	u16 res2;
	} __attribute__((packed));
	#else
	#error Unknown bit field type
	#endif

	/* XXX: Subsequent fragments, including last */
	#if defined __BIG_ENDIAN_BITFIELD
	struct eth1394_sf_hdr {
	u16 lf:2;
	u16 res1:2;
	u16 dg_size:12; /* Datagram size */
	u16 res2:4;
	u16 fg_off:12; /* Fragment offset */
	u16 dgl; /* Datagram label */
	u16 res3;
	} __attribute__((packed));
	#elif defined __LITTLE_ENDIAN_BITFIELD
	struct eth1394_sf_hdr {
	u16 dg_size:12;
	u16 res1:2;
	u16 lf:2;
	u16 fg_off:12;
	u16 res2:4;
	u16 dgl;
	u16 res3;
	} __attribute__((packed));
	#else
	#error Unknown bit field type
	#endif

	#if defined __BIG_ENDIAN_BITFIELD
	struct eth1394_common_hdr {
	u16 lf:2;
	u16 pad1:14;
	} __attribute__((packed));
	#elif defined __LITTLE_ENDIAN_BITFIELD
	struct eth1394_common_hdr {
	u16 pad1:14;
	u16 lf:2;
	} __attribute__((packed));
	#else
	#error Unknown bit field type
	#endif

	struct eth1394_hdr_words {
	u16 word1;
	u16 word2;
	u16 word3;
	u16 word4;
	};

	union eth1394_hdr {
	struct eth1394_common_hdr common;
	struct eth1394_uf_hdr uf;
	struct eth1394_ff_hdr ff;
	struct eth1394_sf_hdr sf;
	struct eth1394_hdr_words words;
	};

	/* End of IP1394 headers */

	/* Fragment types */
	#define ETH1394_HDR_LF_UF 0 /* unfragmented */
	#define ETH1394_HDR_LF_FF 1 /* first fragment */
	#define ETH1394_HDR_LF_LF 2 /* last fragment */
	#define ETH1394_HDR_LF_IF 3 /* interior fragment */

	#define IP1394_HW_ADDR_LEN 16 /* As per RFC */

	/* Our arp packet (ARPHRD_IEEE1394) */
	struct eth1394_arp {
	u16 hw_type; /* 0x0018 */
	u16 proto_type; /* 0x0806 */
	u8 hw_addr_len; /* 16 */
	u8 ip_addr_len; /* 4 */
	u16 opcode; /* ARP Opcode */
	/* Above is exactly the same format as struct arphdr */

	u64 s_uniq_id; /* Sender's 64bit EUI */
	u8 max_rec; /* Sender's max packet size */
	u8 sspd; /* Sender's max speed */
	u16 fifo_hi; /* hi 16bits of sender's FIFO addr */
	u32 fifo_lo; /* lo 32bits of sender's FIFO addr */
	u32 sip; /* Sender's IP Address */
	u32 tip; /* IP Address of requested hw addr */
	};

	/* Network timeout */
	#define ETHER1394_TIMEOUT 100000

	/* This is our task struct. It's used for the packet complete callback. */
	struct packet_task {
	struct sk_buff *skb;
	int outstanding_pkts;
	eth1394_tx_type tx_type;
	int max_payload;
	struct hpsb_packet *packet;
	struct eth1394_priv *priv;
	union eth1394_hdr hdr;
	u64 addr;
	u16 dest_node;
	};

	#endif /* __ETH1394_H */