diff options
Diffstat (limited to 'drivers/s390/net/qeth.h')
| -rw-r--r-- | drivers/s390/net/qeth.h | 1162 |
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__ */ |