1 files changed, 1162 insertions, 0 deletions

diff --git a/drivers/s390/net/qeth.h b/drivers/s390/net/qeth.h
new file mode 100644
index 000000000000..a341041a6cf7
--- /dev/null
+++ b/drivers/s390/net/qeth.h
@@ -0,0 +1,1162 @@
+#ifndef __QETH_H__
+#define __QETH_H__
+
+#include <linux/if.h>
+#include <linux/if_arp.h>
+
+#include <linux/if_tr.h>
+#include <linux/trdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/if_vlan.h>
+
+#include <net/ipv6.h>
+#include <linux/in6.h>
+#include <net/if_inet6.h>
+#include <net/addrconf.h>
+
+
+#include <linux/bitops.h>
+
+#include <asm/debug.h>
+#include <asm/qdio.h>
+#include <asm/ccwdev.h>
+#include <asm/ccwgroup.h>
+
+#include "qeth_mpc.h"
+
+#define VERSION_QETH_H          "$Revision: 1.135 $"
+
+#ifdef CONFIG_QETH_IPV6
+#define QETH_VERSION_IPV6       ":IPv6"
+#else
+#define QETH_VERSION_IPV6       ""
+#endif
+#ifdef CONFIG_QETH_VLAN
+#define QETH_VERSION_VLAN       ":VLAN"
+#else
+#define QETH_VERSION_VLAN       ""
+#endif
+
+/**
+ * Debug Facility stuff
+ */
+#define QETH_DBF_SETUP_NAME "qeth_setup"
+#define QETH_DBF_SETUP_LEN 8
+#define QETH_DBF_SETUP_INDEX 3
+#define QETH_DBF_SETUP_NR_AREAS 1
+#define QETH_DBF_SETUP_LEVEL 5
+
+#define QETH_DBF_MISC_NAME "qeth_misc"
+#define QETH_DBF_MISC_LEN 128
+#define QETH_DBF_MISC_INDEX 1
+#define QETH_DBF_MISC_NR_AREAS 1
+#define QETH_DBF_MISC_LEVEL 2
+
+#define QETH_DBF_DATA_NAME "qeth_data"
+#define QETH_DBF_DATA_LEN 96
+#define QETH_DBF_DATA_INDEX 3
+#define QETH_DBF_DATA_NR_AREAS 1
+#define QETH_DBF_DATA_LEVEL 2
+
+#define QETH_DBF_CONTROL_NAME "qeth_control"
+#define QETH_DBF_CONTROL_LEN 256
+#define QETH_DBF_CONTROL_INDEX 3
+#define QETH_DBF_CONTROL_NR_AREAS 2
+#define QETH_DBF_CONTROL_LEVEL 5
+
+#define QETH_DBF_TRACE_NAME "qeth_trace"
+#define QETH_DBF_TRACE_LEN 8
+#define QETH_DBF_TRACE_INDEX 2
+#define QETH_DBF_TRACE_NR_AREAS 2
+#define QETH_DBF_TRACE_LEVEL 3
+extern debug_info_t *qeth_dbf_trace;
+
+#define QETH_DBF_SENSE_NAME "qeth_sense"
+#define QETH_DBF_SENSE_LEN 64
+#define QETH_DBF_SENSE_INDEX 1
+#define QETH_DBF_SENSE_NR_AREAS 1
+#define QETH_DBF_SENSE_LEVEL 2
+
+#define QETH_DBF_QERR_NAME "qeth_qerr"
+#define QETH_DBF_QERR_LEN 8
+#define QETH_DBF_QERR_INDEX 1
+#define QETH_DBF_QERR_NR_AREAS 2
+#define QETH_DBF_QERR_LEVEL 2
+
+#define QETH_DBF_TEXT(name,level,text) \
+        do { \
+                debug_text_event(qeth_dbf_##name,level,text); \
+        } while (0)
+
+#define QETH_DBF_HEX(name,level,addr,len) \
+        do { \
+                debug_event(qeth_dbf_##name,level,(void*)(addr),len); \
+        } while (0)
+
+DECLARE_PER_CPU(char[256], qeth_dbf_txt_buf);
+
+#define QETH_DBF_TEXT_(name,level,text...)                              \
+        do {                                                            \
+                char* dbf_txt_buf = get_cpu_var(qeth_dbf_txt_buf);      \
+                sprintf(dbf_txt_buf, text);                             \
+                debug_text_event(qeth_dbf_##name,level,dbf_txt_buf);    \
+                put_cpu_var(qeth_dbf_txt_buf);                          \
+        } while (0)
+
+#define QETH_DBF_SPRINTF(name,level,text...) \
+        do { \
+                debug_sprintf_event(qeth_dbf_trace, level, ##text ); \
+                debug_sprintf_event(qeth_dbf_trace, level, text ); \
+        } while (0)
+
+/**
+ * some more debug stuff
+ */
+#define PRINTK_HEADER   "qeth: "
+
+#define HEXDUMP16(importance,header,ptr) \
+PRINT_##importance(header "%02x %02x %02x %02x  %02x %02x %02x %02x  " \
+                   "%02x %02x %02x %02x  %02x %02x %02x %02x\n", \
+                   *(((char*)ptr)),*(((char*)ptr)+1),*(((char*)ptr)+2), \
+                   *(((char*)ptr)+3),*(((char*)ptr)+4),*(((char*)ptr)+5), \
+                   *(((char*)ptr)+6),*(((char*)ptr)+7),*(((char*)ptr)+8), \
+                   *(((char*)ptr)+9),*(((char*)ptr)+10),*(((char*)ptr)+11), \
+                   *(((char*)ptr)+12),*(((char*)ptr)+13), \
+                   *(((char*)ptr)+14),*(((char*)ptr)+15)); \
+PRINT_##importance(header "%02x %02x %02x %02x  %02x %02x %02x %02x  " \
+                   "%02x %02x %02x %02x  %02x %02x %02x %02x\n", \
+                   *(((char*)ptr)+16),*(((char*)ptr)+17), \
+                   *(((char*)ptr)+18),*(((char*)ptr)+19), \
+                   *(((char*)ptr)+20),*(((char*)ptr)+21), \
+                   *(((char*)ptr)+22),*(((char*)ptr)+23), \
+                   *(((char*)ptr)+24),*(((char*)ptr)+25), \
+                   *(((char*)ptr)+26),*(((char*)ptr)+27), \
+                   *(((char*)ptr)+28),*(((char*)ptr)+29), \
+                   *(((char*)ptr)+30),*(((char*)ptr)+31));
+
+static inline void
+qeth_hex_dump(unsigned char *buf, size_t len)
+{
+        size_t i;
+
+        for (i = 0; i < len; i++) {
+                if (i && !(i % 16))
+                        printk("\n");
+                printk("%02x ", *(buf + i));
+        }
+        printk("\n");
+}
+
+#define SENSE_COMMAND_REJECT_BYTE 0
+#define SENSE_COMMAND_REJECT_FLAG 0x80
+#define SENSE_RESETTING_EVENT_BYTE 1
+#define SENSE_RESETTING_EVENT_FLAG 0x80
+
+#define atomic_swap(a,b) xchg((int *)a.counter, b)
+
+/*
+ * Common IO related definitions
+ */
+extern struct device *qeth_root_dev;
+extern struct ccw_driver qeth_ccw_driver;
+extern struct ccwgroup_driver qeth_ccwgroup_driver;
+
+#define CARD_RDEV(card) card->read.ccwdev
+#define CARD_WDEV(card) card->write.ccwdev
+#define CARD_DDEV(card) card->data.ccwdev
+#define CARD_BUS_ID(card) card->gdev->dev.bus_id
+#define CARD_RDEV_ID(card) card->read.ccwdev->dev.bus_id
+#define CARD_WDEV_ID(card) card->write.ccwdev->dev.bus_id
+#define CARD_DDEV_ID(card) card->data.ccwdev->dev.bus_id
+#define CHANNEL_ID(channel) channel->ccwdev->dev.bus_id
+
+#define CARD_FROM_CDEV(cdev) (struct qeth_card *) \
+                ((struct ccwgroup_device *)cdev->dev.driver_data)\
+                ->dev.driver_data;
+
+/**
+ * card stuff
+ */
+#ifdef CONFIG_QETH_PERF_STATS
+struct qeth_perf_stats {
+        unsigned int bufs_rec;
+        unsigned int bufs_sent;
+
+        unsigned int skbs_sent_pack;
+        unsigned int bufs_sent_pack;
+
+        unsigned int sc_dp_p;
+        unsigned int sc_p_dp;
+        /* qdio_input_handler: number of times called, time spent in */
+        __u64 inbound_start_time;
+        unsigned int inbound_cnt;
+        unsigned int inbound_time;
+        /* qeth_send_packet: number of times called, time spent in */
+        __u64 outbound_start_time;
+        unsigned int outbound_cnt;
+        unsigned int outbound_time;
+        /* qdio_output_handler: number of times called, time spent in */
+        __u64 outbound_handler_start_time;
+        unsigned int outbound_handler_cnt;
+        unsigned int outbound_handler_time;
+        /* number of calls to and time spent in do_QDIO for inbound queue */
+        __u64 inbound_do_qdio_start_time;
+        unsigned int inbound_do_qdio_cnt;
+        unsigned int inbound_do_qdio_time;
+        /* number of calls to and time spent in do_QDIO for outbound queues */
+        __u64 outbound_do_qdio_start_time;
+        unsigned int outbound_do_qdio_cnt;
+        unsigned int outbound_do_qdio_time;
+        /* eddp data */
+        unsigned int large_send_bytes;
+        unsigned int large_send_cnt;
+        unsigned int sg_skbs_sent;
+        unsigned int sg_frags_sent;
+};
+#endif /* CONFIG_QETH_PERF_STATS */
+
+/* Routing stuff */
+struct qeth_routing_info {
+        enum qeth_routing_types type;
+};
+
+/* IPA stuff */
+struct qeth_ipa_info {
+        __u32 supported_funcs;
+        __u32 enabled_funcs;
+};
+
+static inline int
+qeth_is_ipa_supported(struct qeth_ipa_info *ipa, enum qeth_ipa_funcs func)
+{
+        return (ipa->supported_funcs & func);
+}
+
+static inline int
+qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, enum qeth_ipa_funcs func)
+{
+        return (ipa->supported_funcs & ipa->enabled_funcs & func);
+}
+
+#define qeth_adp_supported(c,f) \
+        qeth_is_ipa_supported(&c->options.adp, f)
+#define qeth_adp_enabled(c,f) \
+        qeth_is_ipa_enabled(&c->options.adp, f)
+#define qeth_is_supported(c,f) \
+        qeth_is_ipa_supported(&c->options.ipa4, f)
+#define qeth_is_enabled(c,f) \
+        qeth_is_ipa_enabled(&c->options.ipa4, f)
+#ifdef CONFIG_QETH_IPV6
+#define qeth_is_supported6(c,f) \
+        qeth_is_ipa_supported(&c->options.ipa6, f)
+#define qeth_is_enabled6(c,f) \
+        qeth_is_ipa_enabled(&c->options.ipa6, f)
+#else /* CONFIG_QETH_IPV6 */
+#define qeth_is_supported6(c,f) 0
+#define qeth_is_enabled6(c,f) 0
+#endif /* CONFIG_QETH_IPV6 */
+#define qeth_is_ipafunc_supported(c,prot,f) \
+         (prot==QETH_PROT_IPV6)? qeth_is_supported6(c,f):qeth_is_supported(c,f)
+#define qeth_is_ipafunc_enabled(c,prot,f) \
+         (prot==QETH_PROT_IPV6)? qeth_is_enabled6(c,f):qeth_is_enabled(c,f)
+
+
+#define QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT 0x0101
+#define QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT 0x0101
+#define QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT 0x4108
+#define QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT 0x5108
+
+#define QETH_MODELLIST_ARRAY \
+        {{0x1731,0x01,0x1732,0x01,QETH_CARD_TYPE_OSAE,1, \
+        QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT, \
+        QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT, \
+        QETH_MAX_QUEUES,0}, \
+        {0x1731,0x05,0x1732,0x05,QETH_CARD_TYPE_IQD,0, \
+        QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT, \
+        QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT, \
+        QETH_MAX_QUEUES,0x103}, \
+        {0,0,0,0,0,0,0,0,0}}
+
+#define QETH_REAL_CARD          1
+#define QETH_VLAN_CARD          2
+#define QETH_BUFSIZE            4096
+
+/**
+ * some more defs
+ */
+#define IF_NAME_LEN             16
+#define QETH_TX_TIMEOUT         100 * HZ
+#define QETH_HEADER_SIZE        32
+#define MAX_PORTNO              15
+#define QETH_FAKE_LL_LEN        ETH_HLEN
+#define QETH_FAKE_LL_V6_ADDR_POS 24
+
+/*IPv6 address autoconfiguration stuff*/
+#define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe
+#define UNIQUE_ID_NOT_BY_CARD           0x10000
+
+/*****************************************************************************/
+/* QDIO queue and buffer handling                                            */
+/*****************************************************************************/
+#define QETH_MAX_QUEUES 4
+#define QETH_IN_BUF_SIZE_DEFAULT 65536
+#define QETH_IN_BUF_COUNT_DEFAULT 16
+#define QETH_IN_BUF_COUNT_MIN 8
+#define QETH_IN_BUF_COUNT_MAX 128
+#define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
+#define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
+                ((card)->qdio.in_buf_pool.buf_count / 2)
+
+/* buffers we have to be behind before we get a PCI */
+#define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
+/*enqueued free buffers left before we get a PCI*/
+#define QETH_PCI_THRESHOLD_B(card) 0
+/*not used unless the microcode gets patched*/
+#define QETH_PCI_TIMER_VALUE(card) 3
+
+#define QETH_MIN_INPUT_THRESHOLD 1
+#define QETH_MAX_INPUT_THRESHOLD 500
+#define QETH_MIN_OUTPUT_THRESHOLD 1
+#define QETH_MAX_OUTPUT_THRESHOLD 300
+
+/* priority queing */
+#define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
+#define QETH_DEFAULT_QUEUE    2
+#define QETH_NO_PRIO_QUEUEING 0
+#define QETH_PRIO_Q_ING_PREC  1
+#define QETH_PRIO_Q_ING_TOS   2
+#define IP_TOS_LOWDELAY 0x10
+#define IP_TOS_HIGHTHROUGHPUT 0x08
+#define IP_TOS_HIGHRELIABILITY 0x04
+#define IP_TOS_NOTIMPORTANT 0x02
+
+/* Packing */
+#define QETH_LOW_WATERMARK_PACK  2
+#define QETH_HIGH_WATERMARK_PACK 5
+#define QETH_WATERMARK_PACK_FUZZ 1
+
+#define QETH_IP_HEADER_SIZE 40
+
+struct qeth_hdr_layer3 {
+        __u8  id;
+        __u8  flags;
+        __u16 inbound_checksum; /*TSO:__u16 seqno */
+        __u32 token;            /*TSO: __u32 reserved */
+        __u16 length;
+        __u8  vlan_prio;
+        __u8  ext_flags;
+        __u16 vlan_id;
+        __u16 frame_offset;
+        __u8  dest_addr[16];
+} __attribute__ ((packed));
+
+struct qeth_hdr_layer2 {
+        __u8 id;
+        __u8 flags[3];
+        __u8 port_no;
+        __u8 hdr_length;
+        __u16 pkt_length;
+        __u16 seq_no;
+        __u16 vlan_id;
+        __u32 reserved;
+        __u8 reserved2[16];
+} __attribute__ ((packed));
+
+struct qeth_hdr {
+        union {
+                struct qeth_hdr_layer2 l2;
+                struct qeth_hdr_layer3 l3;
+        } hdr;
+} __attribute__ ((packed));
+
+
+/* flags for qeth_hdr.flags */
+#define QETH_HDR_PASSTHRU 0x10
+#define QETH_HDR_IPV6     0x80
+#define QETH_HDR_CAST_MASK 0x07
+enum qeth_cast_flags {
+        QETH_CAST_UNICAST   = 0x06,
+        QETH_CAST_MULTICAST = 0x04,
+        QETH_CAST_BROADCAST = 0x05,
+        QETH_CAST_ANYCAST   = 0x07,
+        QETH_CAST_NOCAST    = 0x00,
+};
+
+enum qeth_layer2_frame_flags {
+        QETH_LAYER2_FLAG_MULTICAST = 0x01,
+        QETH_LAYER2_FLAG_BROADCAST = 0x02,
+        QETH_LAYER2_FLAG_UNICAST   = 0x04,
+        QETH_LAYER2_FLAG_VLAN      = 0x10,
+};
+
+enum qeth_header_ids {
+        QETH_HEADER_TYPE_LAYER3 = 0x01,
+        QETH_HEADER_TYPE_LAYER2 = 0x02,
+        QETH_HEADER_TYPE_TSO    = 0x03,
+};
+/* flags for qeth_hdr.ext_flags */
+#define QETH_HDR_EXT_VLAN_FRAME       0x01
+#define QETH_HDR_EXT_TOKEN_ID         0x02
+#define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
+#define QETH_HDR_EXT_SRC_MAC_ADDR     0x08
+#define QETH_HDR_EXT_CSUM_HDR_REQ     0x10
+#define QETH_HDR_EXT_CSUM_TRANSP_REQ  0x20
+#define QETH_HDR_EXT_UDP_TSO          0x40 /*bit off for TCP*/
+
+static inline int
+qeth_is_last_sbale(struct qdio_buffer_element *sbale)
+{
+        return (sbale->flags & SBAL_FLAGS_LAST_ENTRY);
+}
+
+enum qeth_qdio_buffer_states {
+        /*
+         * inbound: read out by driver; owned by hardware in order to be filled
+         * outbound: owned by driver in order to be filled
+         */
+        QETH_QDIO_BUF_EMPTY,
+        /*
+         * inbound: filled by hardware; owned by driver in order to be read out
+         * outbound: filled by driver; owned by hardware in order to be sent
+         */
+        QETH_QDIO_BUF_PRIMED,
+};
+
+enum qeth_qdio_info_states {
+        QETH_QDIO_UNINITIALIZED,
+        QETH_QDIO_ALLOCATED,
+        QETH_QDIO_ESTABLISHED,
+};
+
+struct qeth_buffer_pool_entry {
+        struct list_head list;
+        struct list_head init_list;
+        void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
+};
+
+struct qeth_qdio_buffer_pool {
+        struct list_head entry_list;
+        int buf_count;
+};
+
+struct qeth_qdio_buffer {
+        struct qdio_buffer *buffer;
+        volatile enum qeth_qdio_buffer_states state;
+        /* the buffer pool entry currently associated to this buffer */
+        struct qeth_buffer_pool_entry *pool_entry;
+};
+
+struct qeth_qdio_q {
+        struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
+        struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
+        /*
+         * buf_to_init means "buffer must be initialized by driver and must
+         * be made available for hardware" -> state is set to EMPTY
+         */
+        volatile int next_buf_to_init;
+} __attribute__ ((aligned(256)));
+
+/* possible types of qeth large_send support */
+enum qeth_large_send_types {
+        QETH_LARGE_SEND_NO,
+        QETH_LARGE_SEND_EDDP,
+        QETH_LARGE_SEND_TSO,
+};
+
+struct qeth_qdio_out_buffer {
+        struct qdio_buffer *buffer;
+        atomic_t state;
+        volatile int next_element_to_fill;
+        struct sk_buff_head skb_list;
+        struct list_head ctx_list;
+};
+
+struct qeth_card;
+
+enum qeth_out_q_states {
+       QETH_OUT_Q_UNLOCKED,
+       QETH_OUT_Q_LOCKED,
+       QETH_OUT_Q_LOCKED_FLUSH,
+};
+
+struct qeth_qdio_out_q {
+        struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
+        struct qeth_qdio_out_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
+        int queue_no;
+        struct qeth_card *card;
+        atomic_t state;
+        volatile int do_pack;
+        /*
+         * index of buffer to be filled by driver; state EMPTY or PACKING
+         */
+        volatile int next_buf_to_fill;
+        /*
+         * number of buffers that are currently filled (PRIMED)
+         * -> these buffers are hardware-owned
+         */
+        atomic_t used_buffers;
+        /* indicates whether PCI flag must be set (or if one is outstanding) */
+        atomic_t set_pci_flags_count;
+} __attribute__ ((aligned(256)));
+
+struct qeth_qdio_info {
+        volatile enum qeth_qdio_info_states state;
+        /* input */
+        struct qeth_qdio_q *in_q;
+        struct qeth_qdio_buffer_pool in_buf_pool;
+        struct qeth_qdio_buffer_pool init_pool;
+        int in_buf_size;
+
+        /* output */
+        int no_out_queues;
+        struct qeth_qdio_out_q **out_qs;
+
+        /* priority queueing */
+        int do_prio_queueing;
+        int default_out_queue;
+};
+
+enum qeth_send_errors {
+        QETH_SEND_ERROR_NONE,
+        QETH_SEND_ERROR_LINK_FAILURE,
+        QETH_SEND_ERROR_RETRY,
+        QETH_SEND_ERROR_KICK_IT,
+};
+
+#define QETH_ETH_MAC_V4      0x0100 /* like v4 */
+#define QETH_ETH_MAC_V6      0x3333 /* like v6 */
+/* tr mc mac is longer, but that will be enough to detect mc frames */
+#define QETH_TR_MAC_NC       0xc000 /* non-canonical */
+#define QETH_TR_MAC_C        0x0300 /* canonical */
+
+#define DEFAULT_ADD_HHLEN 0
+#define MAX_ADD_HHLEN 1024
+
+/**
+ * buffer stuff for read channel
+ */
+#define QETH_CMD_BUFFER_NO      8
+
+/**
+ *  channel state machine
+ */
+enum qeth_channel_states {
+        CH_STATE_UP,
+        CH_STATE_DOWN,
+        CH_STATE_ACTIVATING,
+        CH_STATE_HALTED,
+        CH_STATE_STOPPED,
+};
+/**
+ * card state machine
+ */
+enum qeth_card_states {
+        CARD_STATE_DOWN,
+        CARD_STATE_HARDSETUP,
+        CARD_STATE_SOFTSETUP,
+        CARD_STATE_UP,
+        CARD_STATE_RECOVER,
+};
+
+/**
+ * Protocol versions
+ */
+enum qeth_prot_versions {
+        QETH_PROT_SNA  = 0x0001,
+        QETH_PROT_IPV4 = 0x0004,
+        QETH_PROT_IPV6 = 0x0006,
+};
+
+enum qeth_ip_types {
+        QETH_IP_TYPE_NORMAL,
+        QETH_IP_TYPE_VIPA,
+        QETH_IP_TYPE_RXIP,
+        QETH_IP_TYPE_DEL_ALL_MC,
+};
+
+enum qeth_cmd_buffer_state {
+        BUF_STATE_FREE,
+        BUF_STATE_LOCKED,
+        BUF_STATE_PROCESSED,
+};
+/**
+ * IP address and multicast list
+ */
+struct qeth_ipaddr {
+        struct list_head entry;
+        enum qeth_ip_types type;
+        enum qeth_ipa_setdelip_flags set_flags;
+        enum qeth_ipa_setdelip_flags del_flags;
+        int is_multicast;
+        volatile int users;
+        enum qeth_prot_versions proto;
+        unsigned char mac[OSA_ADDR_LEN];
+        union {
+                struct {
+                        unsigned int addr;
+                        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;
+};
+
+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;
+};
+
+#define QETH_BROADCAST_WITH_ECHO    1
+#define QETH_BROADCAST_WITHOUT_ECHO 2
+
+struct qeth_card_blkt {
+        int time_total;
+        int inter_packet;
+        int inter_packet_jumbo;
+};
+
+
+
+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 layer2_mac_registered;
+        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;
+};
+
+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,
+};
+
+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_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 : "")
+
+inline static __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;
+        }
+}
+
+inline static 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;
+                }
+                *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;
+}
+
+
+inline static 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;
+}
+
+inline static 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) + TR_HLEN;
+        default:
+#ifdef CONFIG_QETH_VLAN
+                return sizeof(struct qeth_hdr) + VLAN_ETH_HLEN;
+#else
+                return sizeof(struct qeth_hdr) + ETH_HLEN;
+#endif
+        }
+#else  /* CONFIG_QETH_IPV6 */
+#ifdef CONFIG_QETH_VLAN
+        return sizeof(struct qeth_hdr) + VLAN_HLEN;
+#else
+        return sizeof(struct qeth_hdr);
+#endif
+#endif /* CONFIG_QETH_IPV6 */
+}
+
+inline static unsigned short
+qeth_get_netdev_flags(struct qeth_card *card)
+{
+        if (card->options.layer2)
+                return 0;
+        switch (card->info.type) {
+        case QETH_CARD_TYPE_IQD:
+                return IFF_NOARP;
+#ifdef CONFIG_QETH_IPV6
+        default:
+                return 0;
+#else
+        default:
+                return IFF_NOARP;
+#endif
+        }
+}
+
+inline static 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;
+        }
+}
+
+inline static int
+qeth_get_max_mtu_for_card(int cardtype)
+{
+        switch (cardtype) {
+        case QETH_CARD_TYPE_UNKNOWN:
+                return 61440;
+        case QETH_CARD_TYPE_OSAE:
+                return 61440;
+        case QETH_CARD_TYPE_IQD:
+                return 57344;
+        default:
+                return 1500;
+        }
+}
+
+inline static int
+qeth_get_mtu_out_of_mpc(int cardtype)
+{
+        switch (cardtype) {
+        case QETH_CARD_TYPE_IQD:
+                return 1;
+        default:
+                return 0;
+        }
+}
+
+inline static 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;
+        }
+}
+
+inline static 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_UNKNOWN:
+        default:
+                return 1;
+        }
+}
+
+inline static int
+qeth_get_arphdr_type(int cardtype, int linktype)
+{
+        switch (cardtype) {
+        case QETH_CARD_TYPE_OSAE:
+                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
+inline static 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 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 < 3; i++) {
+                if (!(end = strchr(start, '.')))
+                        return -EINVAL;
+                len = end - start;
+                memset(abuf, 0, 4);
+                strncpy(abuf, start, len);
+                addr[i] = simple_strtoul(abuf, &tmp, 10);
+                start = end + 1;
+        }
+        memset(abuf, 0, 4);
+        strcpy(abuf, start);
+        addr[3] = simple_strtoul(abuf, &tmp, 10);
+        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 < 7; i++) {
+                if (!(end = strchr(start, ':')))
+                        return -EINVAL;
+                len = end - start;
+                memset(abuf, 0, 5);
+                strncpy(abuf, start, len);
+                tmp_addr[i] = simple_strtoul(abuf, &tmp, 16);
+                start = end + 1;
+        }
+        memset(abuf, 0, 5);
+        strcpy(abuf, start);
+        tmp_addr[7] = simple_strtoul(abuf, &tmp, 16);
+        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 *);
+
+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);
+
+#endif /* __QETH_H__ */