qeth.h

linux-2.6.15.6

			unsigned int mask;
		} a4;
		struct {
			struct in6_addr addr;
			unsigned int pfxlen;
		} a6;
	} u;
};

struct qeth_ipato_entry {
	struct list_head entry;
	enum qeth_prot_versions proto;
	char addr[16];
	int mask_bits;
};

struct qeth_ipato {
	int enabled;
	int invert4;
	int invert6;
	struct list_head entries;
};

struct qeth_channel;

struct qeth_cmd_buffer {
	enum qeth_cmd_buffer_state state;
	struct qeth_channel *channel;
	unsigned char *data;
	int rc;
	void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
};


/**
 * definition of a qeth channel, used for read and write
 */
struct qeth_channel {
	enum qeth_channel_states state;
	struct ccw1 ccw;
	spinlock_t iob_lock;
	wait_queue_head_t wait_q;
	struct tasklet_struct irq_tasklet;
	struct ccw_device *ccwdev;
/*command buffer for control data*/
	struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
	atomic_t irq_pending;
	volatile int io_buf_no;
	volatile int buf_no;
};

/**
 *  OSA card related definitions
 */
struct qeth_token {
	__u32 issuer_rm_w;
	__u32 issuer_rm_r;
	__u32 cm_filter_w;
	__u32 cm_filter_r;
	__u32 cm_connection_w;
	__u32 cm_connection_r;
	__u32 ulp_filter_w;
	__u32 ulp_filter_r;
	__u32 ulp_connection_w;
	__u32 ulp_connection_r;
};

struct qeth_seqno {
	__u32 trans_hdr;
	__u32 pdu_hdr;
	__u32 pdu_hdr_ack;
	__u16 ipa;
	__u32 pkt_seqno;
};

struct qeth_reply {
	struct list_head list;
	wait_queue_head_t wait_q;
	int (*callback)(struct qeth_card *,struct qeth_reply *,unsigned long);
 	u32 seqno;
	unsigned long offset;
	int received;
	int rc;
	void *param;
	struct qeth_card *card;
	atomic_t refcnt;
};


struct qeth_card_blkt {
	int time_total;
	int inter_packet;
	int inter_packet_jumbo;
};

#define QETH_BROADCAST_WITH_ECHO    0x01
#define QETH_BROADCAST_WITHOUT_ECHO 0x02
#define QETH_LAYER2_MAC_READ	    0x01
#define QETH_LAYER2_MAC_REGISTERED  0x02
struct qeth_card_info {
	unsigned short unit_addr2;
	unsigned short cula;
	unsigned short chpid;
	__u16 func_level;
	char mcl_level[QETH_MCL_LENGTH + 1];
	int guestlan;
	int mac_bits;
	int portname_required;
	int portno;
	char portname[9];
	enum qeth_card_types type;
	enum qeth_link_types link_type;
	int is_multicast_different;
	int initial_mtu;
	int max_mtu;
	int broadcast_capable;
	int unique_id;
	struct qeth_card_blkt blkt;
	__u32 csum_mask;
	enum qeth_ipa_promisc_modes promisc_mode;
};

struct qeth_card_options {
	struct qeth_routing_info route4;
	struct qeth_ipa_info ipa4;
	struct qeth_ipa_info adp; /*Adapter parameters*/
#ifdef CONFIG_QETH_IPV6
	struct qeth_routing_info route6;
	struct qeth_ipa_info ipa6;
#endif /* QETH_IPV6 */
	enum qeth_checksum_types checksum_type;
	int broadcast_mode;
	int macaddr_mode;
	int fake_broadcast;
	int add_hhlen;
	int fake_ll;
	int layer2;
	enum qeth_large_send_types large_send;
};

/*
 * thread bits for qeth_card thread masks
 */
enum qeth_threads {
	QETH_SET_IP_THREAD  = 1,
	QETH_RECOVER_THREAD = 2,
	QETH_SET_PROMISC_MODE_THREAD = 4,
};

struct qeth_osn_info {
	int (*assist_cb)(struct net_device *dev, void *data);
	int (*data_cb)(struct sk_buff *skb);
};

struct qeth_card {
	struct list_head list;
	enum qeth_card_states state;
	int lan_online;
	spinlock_t lock;
/*hardware and sysfs stuff*/
	struct ccwgroup_device *gdev;
	struct qeth_channel read;
	struct qeth_channel write;
	struct qeth_channel data;

	struct net_device *dev;
	struct net_device_stats stats;

	struct qeth_card_info info;
	struct qeth_token token;
	struct qeth_seqno seqno;
	struct qeth_card_options options;

	wait_queue_head_t wait_q;
#ifdef CONFIG_QETH_VLAN
	spinlock_t vlanlock;
	struct vlan_group *vlangrp;
#endif
	struct work_struct kernel_thread_starter;
	spinlock_t thread_mask_lock;
	volatile unsigned long thread_start_mask;
	volatile unsigned long thread_allowed_mask;
	volatile unsigned long thread_running_mask;
	spinlock_t ip_lock;
	struct list_head ip_list;
	struct list_head *ip_tbd_list;
	struct qeth_ipato ipato;
	struct list_head cmd_waiter_list;
	/* QDIO buffer handling */
	struct qeth_qdio_info qdio;
#ifdef CONFIG_QETH_PERF_STATS
	struct qeth_perf_stats perf_stats;
#endif /* CONFIG_QETH_PERF_STATS */
	int use_hard_stop;
	int (*orig_hard_header)(struct sk_buff *,struct net_device *,
				unsigned short,void *,void *,unsigned);
	struct qeth_osn_info osn_info; 
};

struct qeth_card_list_struct {
	struct list_head list;
	rwlock_t rwlock;
};

extern struct qeth_card_list_struct qeth_card_list;

/*notifier list */
struct qeth_notify_list_struct {
	struct list_head list;
	struct task_struct *task;
	int signum;
};
extern spinlock_t qeth_notify_lock;
extern struct list_head qeth_notify_list;

/*some helper functions*/

#define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")

static inline __u8
qeth_get_ipa_adp_type(enum qeth_link_types link_type)
{
	switch (link_type) {
	case QETH_LINK_TYPE_HSTR:
		return 2;
	default:
		return 1;
	}
}

static inline int
qeth_realloc_headroom(struct qeth_card *card, struct sk_buff **skb, int size)
{
	struct sk_buff *new_skb = NULL;

	if (skb_headroom(*skb) < size){
		new_skb = skb_realloc_headroom(*skb, size);
		if (!new_skb) {
                        PRINT_ERR("qeth_prepare_skb: could "
                                  "not realloc headroom for qeth_hdr "
                                  "on interface %s", QETH_CARD_IFNAME(card));
                        return -ENOMEM;
                }
		kfree_skb(*skb);
                *skb = new_skb;
	}
	return 0;
}

static inline struct sk_buff *
qeth_pskb_unshare(struct sk_buff *skb, int pri)
{
        struct sk_buff *nskb;
        if (!skb_cloned(skb))
                return skb;
        nskb = skb_copy(skb, pri);
        kfree_skb(skb); /* free our shared copy */
        return nskb;
}

static inline void *
qeth_push_skb(struct qeth_card *card, struct sk_buff **skb, int size)
{
        void *hdr;

	hdr = (void *) skb_push(*skb, size);
        /*
         * sanity check, the Linux memory allocation scheme should
         * never present us cases like this one (the qdio header size plus
         * the first 40 bytes of the paket cross a 4k boundary)
         */
        if ((((unsigned long) hdr) & (~(PAGE_SIZE - 1))) !=
            (((unsigned long) hdr + size +
              QETH_IP_HEADER_SIZE) & (~(PAGE_SIZE - 1)))) {
                PRINT_ERR("qeth_prepare_skb: misaligned "
                          "packet on interface %s. Discarded.",
                          QETH_CARD_IFNAME(card));
                return NULL;
        }
        return hdr;
}


static inline int
qeth_get_hlen(__u8 link_type)
{
#ifdef CONFIG_QETH_IPV6
	switch (link_type) {
	case QETH_LINK_TYPE_HSTR:
	case QETH_LINK_TYPE_LANE_TR:
		return sizeof(struct qeth_hdr_tso) + TR_HLEN;
	default:
#ifdef CONFIG_QETH_VLAN
		return sizeof(struct qeth_hdr_tso) + VLAN_ETH_HLEN;
#else
		return sizeof(struct qeth_hdr_tso) + ETH_HLEN;
#endif
	}
#else  /* CONFIG_QETH_IPV6 */
#ifdef CONFIG_QETH_VLAN
	return sizeof(struct qeth_hdr_tso) + VLAN_HLEN;
#else
	return sizeof(struct qeth_hdr_tso);
#endif
#endif /* CONFIG_QETH_IPV6 */
}

static inline unsigned short
qeth_get_netdev_flags(struct qeth_card *card)
{
	if (card->options.layer2 &&
	   (card->info.type == QETH_CARD_TYPE_OSAE))
		return 0;
	switch (card->info.type) {
	case QETH_CARD_TYPE_IQD:
	case QETH_CARD_TYPE_OSN:	
		return IFF_NOARP;
#ifdef CONFIG_QETH_IPV6
	default:
		return 0;
#else
	default:
		return IFF_NOARP;
#endif
	}
}

static inline int
qeth_get_initial_mtu_for_card(struct qeth_card * card)
{
	switch (card->info.type) {
	case QETH_CARD_TYPE_UNKNOWN:
		return 1500;
	case QETH_CARD_TYPE_IQD:
		return card->info.max_mtu;
	case QETH_CARD_TYPE_OSAE:
		switch (card->info.link_type) {
		case QETH_LINK_TYPE_HSTR:
		case QETH_LINK_TYPE_LANE_TR:
			return 2000;
		default:
			return 1492;
		}
	default:
		return 1500;
	}
}

static inline int
qeth_get_max_mtu_for_card(int cardtype)
{
	switch (cardtype) {
		
	case QETH_CARD_TYPE_UNKNOWN:
	case QETH_CARD_TYPE_OSAE:
	case QETH_CARD_TYPE_OSN:
		return 61440;
	case QETH_CARD_TYPE_IQD:
		return 57344;
	default:
		return 1500;
	}
}

static inline int
qeth_get_mtu_out_of_mpc(int cardtype)
{
	switch (cardtype) {
	case QETH_CARD_TYPE_IQD:
		return 1;
	default:
		return 0;
	}
}

static inline int
qeth_get_mtu_outof_framesize(int framesize)
{
	switch (framesize) {
	case 0x4000:
		return 8192;
	case 0x6000:
		return 16384;
	case 0xa000:
		return 32768;
	case 0xffff:
		return 57344;
	default:
		return 0;
	}
}

static inline int
qeth_mtu_is_valid(struct qeth_card * card, int mtu)
{
	switch (card->info.type) {
	case QETH_CARD_TYPE_OSAE:
		return ((mtu >= 576) && (mtu <= 61440));
	case QETH_CARD_TYPE_IQD:
		return ((mtu >= 576) &&
			(mtu <= card->info.max_mtu + 4096 - 32));
	case QETH_CARD_TYPE_OSN:
	case QETH_CARD_TYPE_UNKNOWN:
	default:
		return 1;
	}
}

static inline int
qeth_get_arphdr_type(int cardtype, int linktype)
{
	switch (cardtype) {
	case QETH_CARD_TYPE_OSAE:
	case QETH_CARD_TYPE_OSN:
		switch (linktype) {
		case QETH_LINK_TYPE_LANE_TR:
		case QETH_LINK_TYPE_HSTR:
			return ARPHRD_IEEE802_TR;
		default:
			return ARPHRD_ETHER;
		}
	case QETH_CARD_TYPE_IQD:
	default:
		return ARPHRD_ETHER;
	}
}

#ifdef CONFIG_QETH_PERF_STATS
static inline int
qeth_get_micros(void)
{
	return (int) (get_clock() >> 12);
}
#endif

static inline int
qeth_get_qdio_q_format(struct qeth_card *card)
{
	switch (card->info.type) {
	case QETH_CARD_TYPE_IQD:
		return 2;
	default:
		return 0;
	}
}

static inline int
qeth_isdigit(char * buf)
{
	while (*buf) {
		if (!isdigit(*buf++))
			return 0;
	}
	return 1;
}

static inline int
qeth_isxdigit(char * buf)
{
	while (*buf) {
		if (!isxdigit(*buf++))
			return 0;
	}
	return 1;
}

static inline void
qeth_ipaddr4_to_string(const __u8 *addr, char *buf)
{
	sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]);
}

static inline int
qeth_string_to_ipaddr4(const char *buf, __u8 *addr)
{
	const char *start, *end;
	char abuf[4];
	char *tmp;
	int len;
	int i;

	start = buf;
	for (i = 0; i < 4; i++) {
		if (i == 3) {
			end = strchr(start,0xa);
			if (end)
				len = end - start;
			else		
				len = strlen(start);
		}
		else {
			end = strchr(start, '.');
			len = end - start;
		}
		if ((len <= 0) || (len > 3))
			return -EINVAL;
		memset(abuf, 0, 4);
		strncpy(abuf, start, len);
		if (!qeth_isdigit(abuf))
			return -EINVAL;
		addr[i] = simple_strtoul(abuf, &tmp, 10);
		start = end + 1;
	}
	return 0;
}

static inline void
qeth_ipaddr6_to_string(const __u8 *addr, char *buf)
{
	sprintf(buf, "%02x%02x:%02x%02x:%02x%02x:%02x%02x"
		     ":%02x%02x:%02x%02x:%02x%02x:%02x%02x",
		     addr[0], addr[1], addr[2], addr[3],
		     addr[4], addr[5], addr[6], addr[7],
		     addr[8], addr[9], addr[10], addr[11],
		     addr[12], addr[13], addr[14], addr[15]);
}

static inline int
qeth_string_to_ipaddr6(const char *buf, __u8 *addr)
{
	const char *start, *end;
	u16 *tmp_addr;
	char abuf[5];
	char *tmp;
	int len;
	int i;

	tmp_addr = (u16 *)addr;
	start = buf;
	for (i = 0; i < 8; i++) {
		if (i == 7) {
			end = strchr(start,0xa);
			if (end)
				len = end - start;
			else
				len = strlen(start);
		}
		else {
			end = strchr(start, ':');
			len = end - start;
		}
		if ((len <= 0) || (len > 4))
			return -EINVAL;
		memset(abuf, 0, 5);
		strncpy(abuf, start, len);
		if (!qeth_isxdigit(abuf))
			return -EINVAL;
		tmp_addr[i] = simple_strtoul(abuf, &tmp, 16);
		start = end + 1;
	}
	return 0;
}

static inline void
qeth_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
		      char *buf)
{
	if (proto == QETH_PROT_IPV4)
		return qeth_ipaddr4_to_string(addr, buf);
	else if (proto == QETH_PROT_IPV6)
		return qeth_ipaddr6_to_string(addr, buf);
}

static inline int
qeth_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
		      __u8 *addr)
{
	if (proto == QETH_PROT_IPV4)
		return qeth_string_to_ipaddr4(buf, addr);
	else if (proto == QETH_PROT_IPV6)
		return qeth_string_to_ipaddr6(buf, addr);
	else
		return -EINVAL;
}

extern int
qeth_setrouting_v4(struct qeth_card *);
extern int
qeth_setrouting_v6(struct qeth_card *);

extern int
qeth_add_ipato_entry(struct qeth_card *, struct qeth_ipato_entry *);

extern void
qeth_del_ipato_entry(struct qeth_card *, enum qeth_prot_versions, u8 *, int);

extern int
qeth_add_vipa(struct qeth_card *, enum qeth_prot_versions, const u8 *);

extern void
qeth_del_vipa(struct qeth_card *, enum qeth_prot_versions, const u8 *);

extern int
qeth_add_rxip(struct qeth_card *, enum qeth_prot_versions, const u8 *);

extern void
qeth_del_rxip(struct qeth_card *, enum qeth_prot_versions, const u8 *);

extern int
qeth_notifier_register(struct task_struct *, int );

extern int
qeth_notifier_unregister(struct task_struct * );

extern void
qeth_schedule_recovery(struct qeth_card *);

extern int
qeth_realloc_buffer_pool(struct qeth_card *, int);

extern int
qeth_set_large_send(struct qeth_card *, enum qeth_large_send_types);

extern void
qeth_fill_header(struct qeth_card *, struct qeth_hdr *,
		 struct sk_buff *, int, int);
extern void
qeth_flush_buffers(struct qeth_qdio_out_q *, int, int, int);

extern int
qeth_osn_assist(struct net_device *, void *, int);

extern int
qeth_osn_register(unsigned char *read_dev_no,
                 struct net_device **,
                 int (*assist_cb)(struct net_device *, void *),
                 int (*data_cb)(struct sk_buff *));

extern void
qeth_osn_deregister(struct net_device *);
		
#endif /* __QETH_H__ */