Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1 | /* |
| 2 | * drivers/s390/net/qeth_core.h |
| 3 | * |
| 4 | * Copyright IBM Corp. 2007 |
| 5 | * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, |
| 6 | * Frank Pavlic <fpavlic@de.ibm.com>, |
| 7 | * Thomas Spatzier <tspat@de.ibm.com>, |
| 8 | * Frank Blaschka <frank.blaschka@de.ibm.com> |
| 9 | */ |
| 10 | |
| 11 | #ifndef __QETH_CORE_H__ |
| 12 | #define __QETH_CORE_H__ |
| 13 | |
| 14 | #include <linux/if.h> |
| 15 | #include <linux/if_arp.h> |
| 16 | #include <linux/if_tr.h> |
| 17 | #include <linux/trdevice.h> |
| 18 | #include <linux/etherdevice.h> |
| 19 | #include <linux/if_vlan.h> |
| 20 | #include <linux/ctype.h> |
| 21 | #include <linux/in6.h> |
| 22 | #include <linux/bitops.h> |
| 23 | #include <linux/seq_file.h> |
| 24 | #include <linux/ethtool.h> |
| 25 | |
| 26 | #include <net/ipv6.h> |
| 27 | #include <net/if_inet6.h> |
| 28 | #include <net/addrconf.h> |
| 29 | |
| 30 | #include <asm/debug.h> |
| 31 | #include <asm/qdio.h> |
| 32 | #include <asm/ccwdev.h> |
| 33 | #include <asm/ccwgroup.h> |
Martin Schwidefsky | 6bcac50 | 2008-12-25 13:38:49 +0100 | [diff] [blame] | 34 | #include <asm/sysinfo.h> |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 35 | |
| 36 | #include "qeth_core_mpc.h" |
| 37 | |
| 38 | /** |
| 39 | * Debug Facility stuff |
| 40 | */ |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 41 | enum qeth_dbf_names { |
| 42 | QETH_DBF_SETUP, |
| 43 | QETH_DBF_QERR, |
| 44 | QETH_DBF_TRACE, |
| 45 | QETH_DBF_MSG, |
| 46 | QETH_DBF_SENSE, |
| 47 | QETH_DBF_MISC, |
| 48 | QETH_DBF_CTRL, |
| 49 | QETH_DBF_INFOS /* must be last element */ |
| 50 | }; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 51 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 52 | struct qeth_dbf_info { |
| 53 | char name[DEBUG_MAX_NAME_LEN]; |
| 54 | int pages; |
| 55 | int areas; |
| 56 | int len; |
| 57 | int level; |
| 58 | struct debug_view *view; |
| 59 | debug_info_t *id; |
| 60 | }; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 61 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 62 | #define QETH_DBF_CTRL_LEN 256 |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 63 | |
| 64 | #define QETH_DBF_TEXT(name, level, text) \ |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 65 | debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 66 | |
| 67 | #define QETH_DBF_HEX(name, level, addr, len) \ |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 68 | debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len) |
| 69 | |
| 70 | #define QETH_DBF_MESSAGE(level, text...) \ |
| 71 | debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text) |
| 72 | |
| 73 | #define QETH_DBF_TEXT_(name, level, text...) \ |
Peter Tiedemann | cd02321 | 2008-04-24 10:15:21 +0200 | [diff] [blame] | 74 | qeth_dbf_longtext(QETH_DBF_##name, level, text) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 75 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 76 | #define SENSE_COMMAND_REJECT_BYTE 0 |
| 77 | #define SENSE_COMMAND_REJECT_FLAG 0x80 |
| 78 | #define SENSE_RESETTING_EVENT_BYTE 1 |
| 79 | #define SENSE_RESETTING_EVENT_FLAG 0x80 |
| 80 | |
| 81 | /* |
| 82 | * Common IO related definitions |
| 83 | */ |
| 84 | #define CARD_RDEV(card) card->read.ccwdev |
| 85 | #define CARD_WDEV(card) card->write.ccwdev |
| 86 | #define CARD_DDEV(card) card->data.ccwdev |
Kay Sievers | 2a0217d | 2008-10-10 21:33:09 +0200 | [diff] [blame] | 87 | #define CARD_BUS_ID(card) dev_name(&card->gdev->dev) |
| 88 | #define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev) |
| 89 | #define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev) |
| 90 | #define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev) |
| 91 | #define CHANNEL_ID(channel) dev_name(&channel->ccwdev->dev) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 92 | |
| 93 | /** |
| 94 | * card stuff |
| 95 | */ |
| 96 | struct qeth_perf_stats { |
| 97 | unsigned int bufs_rec; |
| 98 | unsigned int bufs_sent; |
| 99 | |
| 100 | unsigned int skbs_sent_pack; |
| 101 | unsigned int bufs_sent_pack; |
| 102 | |
| 103 | unsigned int sc_dp_p; |
| 104 | unsigned int sc_p_dp; |
| 105 | /* qdio_input_handler: number of times called, time spent in */ |
| 106 | __u64 inbound_start_time; |
| 107 | unsigned int inbound_cnt; |
| 108 | unsigned int inbound_time; |
| 109 | /* qeth_send_packet: number of times called, time spent in */ |
| 110 | __u64 outbound_start_time; |
| 111 | unsigned int outbound_cnt; |
| 112 | unsigned int outbound_time; |
| 113 | /* qdio_output_handler: number of times called, time spent in */ |
| 114 | __u64 outbound_handler_start_time; |
| 115 | unsigned int outbound_handler_cnt; |
| 116 | unsigned int outbound_handler_time; |
| 117 | /* number of calls to and time spent in do_QDIO for inbound queue */ |
| 118 | __u64 inbound_do_qdio_start_time; |
| 119 | unsigned int inbound_do_qdio_cnt; |
| 120 | unsigned int inbound_do_qdio_time; |
| 121 | /* number of calls to and time spent in do_QDIO for outbound queues */ |
| 122 | __u64 outbound_do_qdio_start_time; |
| 123 | unsigned int outbound_do_qdio_cnt; |
| 124 | unsigned int outbound_do_qdio_time; |
| 125 | /* eddp data */ |
| 126 | unsigned int large_send_bytes; |
| 127 | unsigned int large_send_cnt; |
| 128 | unsigned int sg_skbs_sent; |
| 129 | unsigned int sg_frags_sent; |
| 130 | /* initial values when measuring starts */ |
| 131 | unsigned long initial_rx_packets; |
| 132 | unsigned long initial_tx_packets; |
| 133 | /* inbound scatter gather data */ |
| 134 | unsigned int sg_skbs_rx; |
| 135 | unsigned int sg_frags_rx; |
| 136 | unsigned int sg_alloc_page_rx; |
Frank Blaschka | f61a0d0 | 2009-03-24 20:57:15 +0000 | [diff] [blame] | 137 | unsigned int tx_csum; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 138 | }; |
| 139 | |
| 140 | /* Routing stuff */ |
| 141 | struct qeth_routing_info { |
| 142 | enum qeth_routing_types type; |
| 143 | }; |
| 144 | |
| 145 | /* IPA stuff */ |
| 146 | struct qeth_ipa_info { |
| 147 | __u32 supported_funcs; |
| 148 | __u32 enabled_funcs; |
| 149 | }; |
| 150 | |
| 151 | static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa, |
| 152 | enum qeth_ipa_funcs func) |
| 153 | { |
| 154 | return (ipa->supported_funcs & func); |
| 155 | } |
| 156 | |
| 157 | static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, |
| 158 | enum qeth_ipa_funcs func) |
| 159 | { |
| 160 | return (ipa->supported_funcs & ipa->enabled_funcs & func); |
| 161 | } |
| 162 | |
| 163 | #define qeth_adp_supported(c, f) \ |
| 164 | qeth_is_ipa_supported(&c->options.adp, f) |
| 165 | #define qeth_adp_enabled(c, f) \ |
| 166 | qeth_is_ipa_enabled(&c->options.adp, f) |
| 167 | #define qeth_is_supported(c, f) \ |
| 168 | qeth_is_ipa_supported(&c->options.ipa4, f) |
| 169 | #define qeth_is_enabled(c, f) \ |
| 170 | qeth_is_ipa_enabled(&c->options.ipa4, f) |
| 171 | #define qeth_is_supported6(c, f) \ |
| 172 | qeth_is_ipa_supported(&c->options.ipa6, f) |
| 173 | #define qeth_is_enabled6(c, f) \ |
| 174 | qeth_is_ipa_enabled(&c->options.ipa6, f) |
| 175 | #define qeth_is_ipafunc_supported(c, prot, f) \ |
| 176 | ((prot == QETH_PROT_IPV6) ? \ |
| 177 | qeth_is_supported6(c, f) : qeth_is_supported(c, f)) |
| 178 | #define qeth_is_ipafunc_enabled(c, prot, f) \ |
| 179 | ((prot == QETH_PROT_IPV6) ? \ |
| 180 | qeth_is_enabled6(c, f) : qeth_is_enabled(c, f)) |
| 181 | |
| 182 | #define QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT 0x0101 |
| 183 | #define QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT 0x0101 |
| 184 | #define QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT 0x4108 |
| 185 | #define QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT 0x5108 |
| 186 | |
| 187 | #define QETH_MODELLIST_ARRAY \ |
| 188 | {{0x1731, 0x01, 0x1732, 0x01, QETH_CARD_TYPE_OSAE, 1, \ |
| 189 | QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT, \ |
| 190 | QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT, \ |
| 191 | QETH_MAX_QUEUES, 0}, \ |
| 192 | {0x1731, 0x05, 0x1732, 0x05, QETH_CARD_TYPE_IQD, 0, \ |
| 193 | QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT, \ |
| 194 | QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT, \ |
| 195 | QETH_MAX_QUEUES, 0x103}, \ |
| 196 | {0x1731, 0x06, 0x1732, 0x06, QETH_CARD_TYPE_OSN, 0, \ |
| 197 | QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT, \ |
| 198 | QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT, \ |
| 199 | QETH_MAX_QUEUES, 0}, \ |
| 200 | {0, 0, 0, 0, 0, 0, 0, 0, 0} } |
| 201 | |
| 202 | #define QETH_REAL_CARD 1 |
| 203 | #define QETH_VLAN_CARD 2 |
| 204 | #define QETH_BUFSIZE 4096 |
| 205 | |
| 206 | /** |
| 207 | * some more defs |
| 208 | */ |
| 209 | #define QETH_TX_TIMEOUT 100 * HZ |
| 210 | #define QETH_RCD_TIMEOUT 60 * HZ |
| 211 | #define QETH_HEADER_SIZE 32 |
| 212 | #define QETH_MAX_PORTNO 15 |
| 213 | |
| 214 | /*IPv6 address autoconfiguration stuff*/ |
| 215 | #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe |
| 216 | #define UNIQUE_ID_NOT_BY_CARD 0x10000 |
| 217 | |
| 218 | /*****************************************************************************/ |
| 219 | /* QDIO queue and buffer handling */ |
| 220 | /*****************************************************************************/ |
| 221 | #define QETH_MAX_QUEUES 4 |
| 222 | #define QETH_IN_BUF_SIZE_DEFAULT 65536 |
| 223 | #define QETH_IN_BUF_COUNT_DEFAULT 16 |
| 224 | #define QETH_IN_BUF_COUNT_MIN 8 |
| 225 | #define QETH_IN_BUF_COUNT_MAX 128 |
| 226 | #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12) |
| 227 | #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \ |
| 228 | ((card)->qdio.in_buf_pool.buf_count / 2) |
| 229 | |
| 230 | /* buffers we have to be behind before we get a PCI */ |
| 231 | #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1) |
| 232 | /*enqueued free buffers left before we get a PCI*/ |
| 233 | #define QETH_PCI_THRESHOLD_B(card) 0 |
| 234 | /*not used unless the microcode gets patched*/ |
| 235 | #define QETH_PCI_TIMER_VALUE(card) 3 |
| 236 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 237 | /* priority queing */ |
| 238 | #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING |
| 239 | #define QETH_DEFAULT_QUEUE 2 |
| 240 | #define QETH_NO_PRIO_QUEUEING 0 |
| 241 | #define QETH_PRIO_Q_ING_PREC 1 |
| 242 | #define QETH_PRIO_Q_ING_TOS 2 |
| 243 | #define IP_TOS_LOWDELAY 0x10 |
| 244 | #define IP_TOS_HIGHTHROUGHPUT 0x08 |
| 245 | #define IP_TOS_HIGHRELIABILITY 0x04 |
| 246 | #define IP_TOS_NOTIMPORTANT 0x02 |
| 247 | |
| 248 | /* Packing */ |
| 249 | #define QETH_LOW_WATERMARK_PACK 2 |
| 250 | #define QETH_HIGH_WATERMARK_PACK 5 |
| 251 | #define QETH_WATERMARK_PACK_FUZZ 1 |
| 252 | |
| 253 | #define QETH_IP_HEADER_SIZE 40 |
| 254 | |
| 255 | /* large receive scatter gather copy break */ |
| 256 | #define QETH_RX_SG_CB (PAGE_SIZE >> 1) |
| 257 | |
| 258 | struct qeth_hdr_layer3 { |
| 259 | __u8 id; |
| 260 | __u8 flags; |
| 261 | __u16 inbound_checksum; /*TSO:__u16 seqno */ |
| 262 | __u32 token; /*TSO: __u32 reserved */ |
| 263 | __u16 length; |
| 264 | __u8 vlan_prio; |
| 265 | __u8 ext_flags; |
| 266 | __u16 vlan_id; |
| 267 | __u16 frame_offset; |
| 268 | __u8 dest_addr[16]; |
| 269 | } __attribute__ ((packed)); |
| 270 | |
| 271 | struct qeth_hdr_layer2 { |
| 272 | __u8 id; |
| 273 | __u8 flags[3]; |
| 274 | __u8 port_no; |
| 275 | __u8 hdr_length; |
| 276 | __u16 pkt_length; |
| 277 | __u16 seq_no; |
| 278 | __u16 vlan_id; |
| 279 | __u32 reserved; |
| 280 | __u8 reserved2[16]; |
| 281 | } __attribute__ ((packed)); |
| 282 | |
| 283 | struct qeth_hdr_osn { |
| 284 | __u8 id; |
| 285 | __u8 reserved; |
| 286 | __u16 seq_no; |
| 287 | __u16 reserved2; |
| 288 | __u16 control_flags; |
| 289 | __u16 pdu_length; |
| 290 | __u8 reserved3[18]; |
| 291 | __u32 ccid; |
| 292 | } __attribute__ ((packed)); |
| 293 | |
| 294 | struct qeth_hdr { |
| 295 | union { |
| 296 | struct qeth_hdr_layer2 l2; |
| 297 | struct qeth_hdr_layer3 l3; |
| 298 | struct qeth_hdr_osn osn; |
| 299 | } hdr; |
| 300 | } __attribute__ ((packed)); |
| 301 | |
| 302 | /*TCP Segmentation Offload header*/ |
| 303 | struct qeth_hdr_ext_tso { |
| 304 | __u16 hdr_tot_len; |
| 305 | __u8 imb_hdr_no; |
| 306 | __u8 reserved; |
| 307 | __u8 hdr_type; |
| 308 | __u8 hdr_version; |
| 309 | __u16 hdr_len; |
| 310 | __u32 payload_len; |
| 311 | __u16 mss; |
| 312 | __u16 dg_hdr_len; |
| 313 | __u8 padding[16]; |
| 314 | } __attribute__ ((packed)); |
| 315 | |
| 316 | struct qeth_hdr_tso { |
| 317 | struct qeth_hdr hdr; /*hdr->hdr.l3.xxx*/ |
| 318 | struct qeth_hdr_ext_tso ext; |
| 319 | } __attribute__ ((packed)); |
| 320 | |
| 321 | |
| 322 | /* flags for qeth_hdr.flags */ |
| 323 | #define QETH_HDR_PASSTHRU 0x10 |
| 324 | #define QETH_HDR_IPV6 0x80 |
| 325 | #define QETH_HDR_CAST_MASK 0x07 |
| 326 | enum qeth_cast_flags { |
| 327 | QETH_CAST_UNICAST = 0x06, |
| 328 | QETH_CAST_MULTICAST = 0x04, |
| 329 | QETH_CAST_BROADCAST = 0x05, |
| 330 | QETH_CAST_ANYCAST = 0x07, |
| 331 | QETH_CAST_NOCAST = 0x00, |
| 332 | }; |
| 333 | |
| 334 | enum qeth_layer2_frame_flags { |
| 335 | QETH_LAYER2_FLAG_MULTICAST = 0x01, |
| 336 | QETH_LAYER2_FLAG_BROADCAST = 0x02, |
| 337 | QETH_LAYER2_FLAG_UNICAST = 0x04, |
| 338 | QETH_LAYER2_FLAG_VLAN = 0x10, |
| 339 | }; |
| 340 | |
| 341 | enum qeth_header_ids { |
| 342 | QETH_HEADER_TYPE_LAYER3 = 0x01, |
| 343 | QETH_HEADER_TYPE_LAYER2 = 0x02, |
| 344 | QETH_HEADER_TYPE_TSO = 0x03, |
| 345 | QETH_HEADER_TYPE_OSN = 0x04, |
| 346 | }; |
| 347 | /* flags for qeth_hdr.ext_flags */ |
| 348 | #define QETH_HDR_EXT_VLAN_FRAME 0x01 |
| 349 | #define QETH_HDR_EXT_TOKEN_ID 0x02 |
| 350 | #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04 |
| 351 | #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08 |
| 352 | #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10 |
| 353 | #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20 |
| 354 | #define QETH_HDR_EXT_UDP_TSO 0x40 /*bit off for TCP*/ |
| 355 | |
| 356 | static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale) |
| 357 | { |
| 358 | return (sbale->flags & SBAL_FLAGS_LAST_ENTRY); |
| 359 | } |
| 360 | |
| 361 | enum qeth_qdio_buffer_states { |
| 362 | /* |
| 363 | * inbound: read out by driver; owned by hardware in order to be filled |
| 364 | * outbound: owned by driver in order to be filled |
| 365 | */ |
| 366 | QETH_QDIO_BUF_EMPTY, |
| 367 | /* |
| 368 | * inbound: filled by hardware; owned by driver in order to be read out |
| 369 | * outbound: filled by driver; owned by hardware in order to be sent |
| 370 | */ |
| 371 | QETH_QDIO_BUF_PRIMED, |
| 372 | }; |
| 373 | |
| 374 | enum qeth_qdio_info_states { |
| 375 | QETH_QDIO_UNINITIALIZED, |
| 376 | QETH_QDIO_ALLOCATED, |
| 377 | QETH_QDIO_ESTABLISHED, |
| 378 | QETH_QDIO_CLEANING |
| 379 | }; |
| 380 | |
| 381 | struct qeth_buffer_pool_entry { |
| 382 | struct list_head list; |
| 383 | struct list_head init_list; |
| 384 | void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER]; |
| 385 | }; |
| 386 | |
| 387 | struct qeth_qdio_buffer_pool { |
| 388 | struct list_head entry_list; |
| 389 | int buf_count; |
| 390 | }; |
| 391 | |
| 392 | struct qeth_qdio_buffer { |
| 393 | struct qdio_buffer *buffer; |
| 394 | /* the buffer pool entry currently associated to this buffer */ |
| 395 | struct qeth_buffer_pool_entry *pool_entry; |
| 396 | }; |
| 397 | |
| 398 | struct qeth_qdio_q { |
| 399 | struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; |
| 400 | struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q]; |
| 401 | int next_buf_to_init; |
| 402 | } __attribute__ ((aligned(256))); |
| 403 | |
| 404 | /* possible types of qeth large_send support */ |
| 405 | enum qeth_large_send_types { |
| 406 | QETH_LARGE_SEND_NO, |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 407 | QETH_LARGE_SEND_TSO, |
| 408 | }; |
| 409 | |
| 410 | struct qeth_qdio_out_buffer { |
| 411 | struct qdio_buffer *buffer; |
| 412 | atomic_t state; |
| 413 | int next_element_to_fill; |
| 414 | struct sk_buff_head skb_list; |
| 415 | struct list_head ctx_list; |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 416 | int is_header[16]; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 417 | }; |
| 418 | |
| 419 | struct qeth_card; |
| 420 | |
| 421 | enum qeth_out_q_states { |
| 422 | QETH_OUT_Q_UNLOCKED, |
| 423 | QETH_OUT_Q_LOCKED, |
| 424 | QETH_OUT_Q_LOCKED_FLUSH, |
| 425 | }; |
| 426 | |
| 427 | struct qeth_qdio_out_q { |
| 428 | struct qdio_buffer qdio_bufs[QDIO_MAX_BUFFERS_PER_Q]; |
| 429 | struct qeth_qdio_out_buffer bufs[QDIO_MAX_BUFFERS_PER_Q]; |
| 430 | int queue_no; |
| 431 | struct qeth_card *card; |
| 432 | atomic_t state; |
| 433 | int do_pack; |
| 434 | /* |
| 435 | * index of buffer to be filled by driver; state EMPTY or PACKING |
| 436 | */ |
| 437 | int next_buf_to_fill; |
| 438 | /* |
| 439 | * number of buffers that are currently filled (PRIMED) |
| 440 | * -> these buffers are hardware-owned |
| 441 | */ |
| 442 | atomic_t used_buffers; |
| 443 | /* indicates whether PCI flag must be set (or if one is outstanding) */ |
| 444 | atomic_t set_pci_flags_count; |
| 445 | } __attribute__ ((aligned(256))); |
| 446 | |
| 447 | struct qeth_qdio_info { |
| 448 | atomic_t state; |
| 449 | /* input */ |
| 450 | struct qeth_qdio_q *in_q; |
| 451 | struct qeth_qdio_buffer_pool in_buf_pool; |
| 452 | struct qeth_qdio_buffer_pool init_pool; |
| 453 | int in_buf_size; |
| 454 | |
| 455 | /* output */ |
| 456 | int no_out_queues; |
| 457 | struct qeth_qdio_out_q **out_qs; |
| 458 | |
| 459 | /* priority queueing */ |
| 460 | int do_prio_queueing; |
| 461 | int default_out_queue; |
| 462 | }; |
| 463 | |
| 464 | enum qeth_send_errors { |
| 465 | QETH_SEND_ERROR_NONE, |
| 466 | QETH_SEND_ERROR_LINK_FAILURE, |
| 467 | QETH_SEND_ERROR_RETRY, |
| 468 | QETH_SEND_ERROR_KICK_IT, |
| 469 | }; |
| 470 | |
| 471 | #define QETH_ETH_MAC_V4 0x0100 /* like v4 */ |
| 472 | #define QETH_ETH_MAC_V6 0x3333 /* like v6 */ |
| 473 | /* tr mc mac is longer, but that will be enough to detect mc frames */ |
| 474 | #define QETH_TR_MAC_NC 0xc000 /* non-canonical */ |
| 475 | #define QETH_TR_MAC_C 0x0300 /* canonical */ |
| 476 | |
| 477 | #define DEFAULT_ADD_HHLEN 0 |
| 478 | #define MAX_ADD_HHLEN 1024 |
| 479 | |
| 480 | /** |
| 481 | * buffer stuff for read channel |
| 482 | */ |
| 483 | #define QETH_CMD_BUFFER_NO 8 |
| 484 | |
| 485 | /** |
| 486 | * channel state machine |
| 487 | */ |
| 488 | enum qeth_channel_states { |
| 489 | CH_STATE_UP, |
| 490 | CH_STATE_DOWN, |
| 491 | CH_STATE_ACTIVATING, |
| 492 | CH_STATE_HALTED, |
| 493 | CH_STATE_STOPPED, |
| 494 | CH_STATE_RCD, |
| 495 | CH_STATE_RCD_DONE, |
| 496 | }; |
| 497 | /** |
| 498 | * card state machine |
| 499 | */ |
| 500 | enum qeth_card_states { |
| 501 | CARD_STATE_DOWN, |
| 502 | CARD_STATE_HARDSETUP, |
| 503 | CARD_STATE_SOFTSETUP, |
| 504 | CARD_STATE_UP, |
| 505 | CARD_STATE_RECOVER, |
| 506 | }; |
| 507 | |
| 508 | /** |
| 509 | * Protocol versions |
| 510 | */ |
| 511 | enum qeth_prot_versions { |
| 512 | QETH_PROT_IPV4 = 0x0004, |
| 513 | QETH_PROT_IPV6 = 0x0006, |
| 514 | }; |
| 515 | |
| 516 | enum qeth_ip_types { |
| 517 | QETH_IP_TYPE_NORMAL, |
| 518 | QETH_IP_TYPE_VIPA, |
| 519 | QETH_IP_TYPE_RXIP, |
| 520 | QETH_IP_TYPE_DEL_ALL_MC, |
| 521 | }; |
| 522 | |
| 523 | enum qeth_cmd_buffer_state { |
| 524 | BUF_STATE_FREE, |
| 525 | BUF_STATE_LOCKED, |
| 526 | BUF_STATE_PROCESSED, |
| 527 | }; |
| 528 | |
| 529 | struct qeth_ipato { |
| 530 | int enabled; |
| 531 | int invert4; |
| 532 | int invert6; |
| 533 | struct list_head entries; |
| 534 | }; |
| 535 | |
| 536 | struct qeth_channel; |
| 537 | |
| 538 | struct qeth_cmd_buffer { |
| 539 | enum qeth_cmd_buffer_state state; |
| 540 | struct qeth_channel *channel; |
| 541 | unsigned char *data; |
| 542 | int rc; |
| 543 | void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *); |
| 544 | }; |
| 545 | |
| 546 | /** |
| 547 | * definition of a qeth channel, used for read and write |
| 548 | */ |
| 549 | struct qeth_channel { |
| 550 | enum qeth_channel_states state; |
| 551 | struct ccw1 ccw; |
| 552 | spinlock_t iob_lock; |
| 553 | wait_queue_head_t wait_q; |
| 554 | struct tasklet_struct irq_tasklet; |
| 555 | struct ccw_device *ccwdev; |
| 556 | /*command buffer for control data*/ |
| 557 | struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO]; |
| 558 | atomic_t irq_pending; |
| 559 | int io_buf_no; |
| 560 | int buf_no; |
| 561 | }; |
| 562 | |
| 563 | /** |
| 564 | * OSA card related definitions |
| 565 | */ |
| 566 | struct qeth_token { |
| 567 | __u32 issuer_rm_w; |
| 568 | __u32 issuer_rm_r; |
| 569 | __u32 cm_filter_w; |
| 570 | __u32 cm_filter_r; |
| 571 | __u32 cm_connection_w; |
| 572 | __u32 cm_connection_r; |
| 573 | __u32 ulp_filter_w; |
| 574 | __u32 ulp_filter_r; |
| 575 | __u32 ulp_connection_w; |
| 576 | __u32 ulp_connection_r; |
| 577 | }; |
| 578 | |
| 579 | struct qeth_seqno { |
| 580 | __u32 trans_hdr; |
| 581 | __u32 pdu_hdr; |
| 582 | __u32 pdu_hdr_ack; |
| 583 | __u16 ipa; |
| 584 | __u32 pkt_seqno; |
| 585 | }; |
| 586 | |
| 587 | struct qeth_reply { |
| 588 | struct list_head list; |
| 589 | wait_queue_head_t wait_q; |
| 590 | int (*callback)(struct qeth_card *, struct qeth_reply *, |
| 591 | unsigned long); |
| 592 | u32 seqno; |
| 593 | unsigned long offset; |
| 594 | atomic_t received; |
| 595 | int rc; |
| 596 | void *param; |
| 597 | struct qeth_card *card; |
| 598 | atomic_t refcnt; |
| 599 | }; |
| 600 | |
| 601 | |
| 602 | struct qeth_card_blkt { |
| 603 | int time_total; |
| 604 | int inter_packet; |
| 605 | int inter_packet_jumbo; |
| 606 | }; |
| 607 | |
| 608 | #define QETH_BROADCAST_WITH_ECHO 0x01 |
| 609 | #define QETH_BROADCAST_WITHOUT_ECHO 0x02 |
| 610 | #define QETH_LAYER2_MAC_READ 0x01 |
| 611 | #define QETH_LAYER2_MAC_REGISTERED 0x02 |
| 612 | struct qeth_card_info { |
| 613 | unsigned short unit_addr2; |
| 614 | unsigned short cula; |
| 615 | unsigned short chpid; |
| 616 | __u16 func_level; |
| 617 | char mcl_level[QETH_MCL_LENGTH + 1]; |
| 618 | int guestlan; |
| 619 | int mac_bits; |
| 620 | int portname_required; |
| 621 | int portno; |
| 622 | char portname[9]; |
| 623 | enum qeth_card_types type; |
| 624 | enum qeth_link_types link_type; |
| 625 | int is_multicast_different; |
| 626 | int initial_mtu; |
| 627 | int max_mtu; |
| 628 | int broadcast_capable; |
| 629 | int unique_id; |
| 630 | struct qeth_card_blkt blkt; |
| 631 | __u32 csum_mask; |
| 632 | enum qeth_ipa_promisc_modes promisc_mode; |
| 633 | }; |
| 634 | |
| 635 | struct qeth_card_options { |
| 636 | struct qeth_routing_info route4; |
| 637 | struct qeth_ipa_info ipa4; |
| 638 | struct qeth_ipa_info adp; /*Adapter parameters*/ |
| 639 | struct qeth_routing_info route6; |
| 640 | struct qeth_ipa_info ipa6; |
| 641 | enum qeth_checksum_types checksum_type; |
| 642 | int broadcast_mode; |
| 643 | int macaddr_mode; |
| 644 | int fake_broadcast; |
| 645 | int add_hhlen; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 646 | int layer2; |
| 647 | enum qeth_large_send_types large_send; |
| 648 | int performance_stats; |
| 649 | int rx_sg_cb; |
| 650 | }; |
| 651 | |
| 652 | /* |
| 653 | * thread bits for qeth_card thread masks |
| 654 | */ |
| 655 | enum qeth_threads { |
| 656 | QETH_RECOVER_THREAD = 1, |
| 657 | }; |
| 658 | |
| 659 | struct qeth_osn_info { |
| 660 | int (*assist_cb)(struct net_device *dev, void *data); |
| 661 | int (*data_cb)(struct sk_buff *skb); |
| 662 | }; |
| 663 | |
| 664 | enum qeth_discipline_id { |
| 665 | QETH_DISCIPLINE_LAYER3 = 0, |
| 666 | QETH_DISCIPLINE_LAYER2 = 1, |
| 667 | }; |
| 668 | |
| 669 | struct qeth_discipline { |
| 670 | qdio_handler_t *input_handler; |
| 671 | qdio_handler_t *output_handler; |
| 672 | int (*recover)(void *ptr); |
| 673 | struct ccwgroup_driver *ccwgdriver; |
| 674 | }; |
| 675 | |
| 676 | struct qeth_vlan_vid { |
| 677 | struct list_head list; |
| 678 | unsigned short vid; |
| 679 | }; |
| 680 | |
| 681 | struct qeth_mc_mac { |
| 682 | struct list_head list; |
| 683 | __u8 mc_addr[MAX_ADDR_LEN]; |
| 684 | unsigned char mc_addrlen; |
Frank Blaschka | 7db2266 | 2008-08-15 08:02:59 +0200 | [diff] [blame] | 685 | int is_vmac; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 686 | }; |
| 687 | |
| 688 | struct qeth_card { |
| 689 | struct list_head list; |
| 690 | enum qeth_card_states state; |
| 691 | int lan_online; |
| 692 | spinlock_t lock; |
| 693 | struct ccwgroup_device *gdev; |
| 694 | struct qeth_channel read; |
| 695 | struct qeth_channel write; |
| 696 | struct qeth_channel data; |
| 697 | |
| 698 | struct net_device *dev; |
| 699 | struct net_device_stats stats; |
| 700 | |
| 701 | struct qeth_card_info info; |
| 702 | struct qeth_token token; |
| 703 | struct qeth_seqno seqno; |
| 704 | struct qeth_card_options options; |
| 705 | |
| 706 | wait_queue_head_t wait_q; |
| 707 | spinlock_t vlanlock; |
| 708 | spinlock_t mclock; |
| 709 | struct vlan_group *vlangrp; |
| 710 | struct list_head vid_list; |
| 711 | struct list_head mc_list; |
| 712 | struct work_struct kernel_thread_starter; |
| 713 | spinlock_t thread_mask_lock; |
| 714 | unsigned long thread_start_mask; |
| 715 | unsigned long thread_allowed_mask; |
| 716 | unsigned long thread_running_mask; |
| 717 | spinlock_t ip_lock; |
| 718 | struct list_head ip_list; |
| 719 | struct list_head *ip_tbd_list; |
| 720 | struct qeth_ipato ipato; |
| 721 | struct list_head cmd_waiter_list; |
| 722 | /* QDIO buffer handling */ |
| 723 | struct qeth_qdio_info qdio; |
| 724 | struct qeth_perf_stats perf_stats; |
| 725 | int use_hard_stop; |
| 726 | struct qeth_osn_info osn_info; |
| 727 | struct qeth_discipline discipline; |
| 728 | atomic_t force_alloc_skb; |
Martin Schwidefsky | 6bcac50 | 2008-12-25 13:38:49 +0100 | [diff] [blame] | 729 | struct service_level qeth_service_level; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 730 | }; |
| 731 | |
| 732 | struct qeth_card_list_struct { |
| 733 | struct list_head list; |
| 734 | rwlock_t rwlock; |
| 735 | }; |
| 736 | |
| 737 | /*some helper functions*/ |
| 738 | #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "") |
| 739 | |
| 740 | static inline struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev) |
| 741 | { |
| 742 | struct qeth_card *card = dev_get_drvdata(&((struct ccwgroup_device *) |
| 743 | dev_get_drvdata(&cdev->dev))->dev); |
| 744 | return card; |
| 745 | } |
| 746 | |
| 747 | static inline int qeth_get_micros(void) |
| 748 | { |
| 749 | return (int) (get_clock() >> 12); |
| 750 | } |
| 751 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 752 | static inline int qeth_get_ip_version(struct sk_buff *skb) |
| 753 | { |
| 754 | switch (skb->protocol) { |
| 755 | case ETH_P_IPV6: |
| 756 | return 6; |
| 757 | case ETH_P_IP: |
| 758 | return 4; |
| 759 | default: |
| 760 | return 0; |
| 761 | } |
| 762 | } |
| 763 | |
Frank Blaschka | f90b744 | 2008-04-24 10:15:24 +0200 | [diff] [blame] | 764 | static inline void qeth_put_buffer_pool_entry(struct qeth_card *card, |
| 765 | struct qeth_buffer_pool_entry *entry) |
| 766 | { |
| 767 | list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list); |
| 768 | } |
| 769 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 770 | struct qeth_eddp_context; |
| 771 | extern struct ccwgroup_driver qeth_l2_ccwgroup_driver; |
| 772 | extern struct ccwgroup_driver qeth_l3_ccwgroup_driver; |
| 773 | const char *qeth_get_cardname_short(struct qeth_card *); |
| 774 | int qeth_realloc_buffer_pool(struct qeth_card *, int); |
| 775 | int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id); |
| 776 | void qeth_core_free_discipline(struct qeth_card *); |
| 777 | int qeth_core_create_device_attributes(struct device *); |
| 778 | void qeth_core_remove_device_attributes(struct device *); |
| 779 | int qeth_core_create_osn_attributes(struct device *); |
| 780 | void qeth_core_remove_osn_attributes(struct device *); |
| 781 | |
| 782 | /* exports for qeth discipline device drivers */ |
| 783 | extern struct qeth_card_list_struct qeth_core_card_list; |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 784 | extern struct kmem_cache *qeth_core_header_cache; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 785 | extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS]; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 786 | |
| 787 | void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int); |
| 788 | int qeth_threads_running(struct qeth_card *, unsigned long); |
| 789 | int qeth_wait_for_threads(struct qeth_card *, unsigned long); |
| 790 | int qeth_do_run_thread(struct qeth_card *, unsigned long); |
| 791 | void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long); |
| 792 | void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long); |
| 793 | int qeth_core_hardsetup_card(struct qeth_card *); |
| 794 | void qeth_print_status_message(struct qeth_card *); |
| 795 | int qeth_init_qdio_queues(struct qeth_card *); |
| 796 | int qeth_send_startlan(struct qeth_card *); |
| 797 | int qeth_send_stoplan(struct qeth_card *); |
| 798 | int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, |
| 799 | int (*reply_cb) |
| 800 | (struct qeth_card *, struct qeth_reply *, unsigned long), |
| 801 | void *); |
| 802 | struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *, |
| 803 | enum qeth_ipa_cmds, enum qeth_prot_versions); |
| 804 | int qeth_query_setadapterparms(struct qeth_card *); |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 805 | int qeth_check_qdio_errors(struct qdio_buffer *, unsigned int, const char *); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 806 | void qeth_queue_input_buffer(struct qeth_card *, int); |
| 807 | struct sk_buff *qeth_core_get_next_skb(struct qeth_card *, |
| 808 | struct qdio_buffer *, struct qdio_buffer_element **, int *, |
| 809 | struct qeth_hdr **); |
| 810 | void qeth_schedule_recovery(struct qeth_card *); |
| 811 | void qeth_qdio_output_handler(struct ccw_device *, unsigned int, |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 812 | int, int, int, unsigned long); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 813 | void qeth_clear_ipacmd_list(struct qeth_card *); |
| 814 | int qeth_qdio_clear_card(struct qeth_card *, int); |
| 815 | void qeth_clear_working_pool_list(struct qeth_card *); |
| 816 | void qeth_clear_cmd_buffers(struct qeth_channel *); |
| 817 | void qeth_clear_qdio_buffers(struct qeth_card *); |
| 818 | void qeth_setadp_promisc_mode(struct qeth_card *); |
| 819 | struct net_device_stats *qeth_get_stats(struct net_device *); |
| 820 | int qeth_change_mtu(struct net_device *, int); |
| 821 | int qeth_setadpparms_change_macaddr(struct qeth_card *); |
| 822 | void qeth_tx_timeout(struct net_device *); |
| 823 | void qeth_prepare_control_data(struct qeth_card *, int, |
| 824 | struct qeth_cmd_buffer *); |
| 825 | void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *); |
| 826 | void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char); |
| 827 | struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *); |
| 828 | int qeth_mdio_read(struct net_device *, int, int); |
| 829 | int qeth_snmp_command(struct qeth_card *, char __user *); |
| 830 | int qeth_set_large_send(struct qeth_card *, enum qeth_large_send_types); |
| 831 | struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *, __u32, __u32); |
| 832 | int qeth_default_setadapterparms_cb(struct qeth_card *, struct qeth_reply *, |
| 833 | unsigned long); |
| 834 | int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *, |
| 835 | int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long), |
| 836 | void *reply_param); |
| 837 | int qeth_get_cast_type(struct qeth_card *, struct sk_buff *); |
| 838 | int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 839 | int qeth_get_elements_no(struct qeth_card *, void *, struct sk_buff *, int); |
| 840 | int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *, |
Frank Blaschka | 64ef895 | 2009-03-24 20:57:16 +0000 | [diff] [blame] | 841 | struct sk_buff *, struct qeth_hdr *, int, int, int); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 842 | int qeth_do_send_packet(struct qeth_card *, struct qeth_qdio_out_q *, |
Frank Blaschka | 64ef895 | 2009-03-24 20:57:16 +0000 | [diff] [blame] | 843 | struct sk_buff *, struct qeth_hdr *, int); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 844 | int qeth_core_get_stats_count(struct net_device *); |
| 845 | void qeth_core_get_ethtool_stats(struct net_device *, |
| 846 | struct ethtool_stats *, u64 *); |
| 847 | void qeth_core_get_strings(struct net_device *, u32, u8 *); |
| 848 | void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *); |
Peter Tiedemann | cd02321 | 2008-04-24 10:15:21 +0200 | [diff] [blame] | 849 | void qeth_dbf_longtext(enum qeth_dbf_names dbf_nix, int level, char *text, ...); |
Frank Blaschka | 3f9975a | 2008-04-24 10:15:23 +0200 | [diff] [blame] | 850 | int qeth_core_ethtool_get_settings(struct net_device *, struct ethtool_cmd *); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 851 | |
| 852 | /* exports for OSN */ |
| 853 | int qeth_osn_assist(struct net_device *, void *, int); |
| 854 | int qeth_osn_register(unsigned char *read_dev_no, struct net_device **, |
| 855 | int (*assist_cb)(struct net_device *, void *), |
| 856 | int (*data_cb)(struct sk_buff *)); |
| 857 | void qeth_osn_deregister(struct net_device *); |
| 858 | |
| 859 | #endif /* __QETH_CORE_H__ */ |