drivers/net/ehea/ehea.h

   1 /*
   2  *  linux/drivers/net/ehea/ehea.h
   3  *
   4  *  eHEA ethernet device driver for IBM eServer System p
   5  *
   6  *  (C) Copyright IBM Corp. 2006
   7  *
   8  *  Authors:
   9  *       Christoph Raisch <raisch@de.ibm.com>
  10  *       Jan-Bernd Themann <themann@de.ibm.com>
  11  *       Thomas Klein <tklein@de.ibm.com>
  12  *
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2, or (at your option)
  17  * any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  27  */
  28
  29 #ifndef __EHEA_H__
  30 #define __EHEA_H__
  31
  32 #include <linux/module.h>
  33 #include <linux/ethtool.h>
  34 #include <linux/vmalloc.h>
  35 #include <linux/if_vlan.h>
  36 #include <linux/inet_lro.h>
  37
  38 #include <asm/ibmebus.h>
  39 #include <asm/abs_addr.h>
  40 #include <asm/io.h>
  41
  42 #define DRV_NAME        "ehea"
  43 <<<<<<< HEAD:drivers/net/ehea/ehea.h
  44 #define DRV_VERSION     "EHEA_0083"
  45 =======
  46 #define DRV_VERSION     "EHEA_0087"
  47 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/net/ehea/ehea.h
  48
  49 /* eHEA capability flags */
  50 #define DLPAR_PORT_ADD_REM 1
  51 #define DLPAR_MEM_ADD      2
  52 #define DLPAR_MEM_REM      4
  53 #define EHEA_CAPABILITIES  (DLPAR_PORT_ADD_REM | DLPAR_MEM_ADD)
  54
  55 #define EHEA_MSG_DEFAULT (NETIF_MSG_LINK | NETIF_MSG_TIMER \
  56         | NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR)
  57
  58 #define EHEA_MAX_ENTRIES_RQ1 32767
  59 #define EHEA_MAX_ENTRIES_RQ2 16383
  60 #define EHEA_MAX_ENTRIES_RQ3 16383
  61 #define EHEA_MAX_ENTRIES_SQ  32767
  62 #define EHEA_MIN_ENTRIES_QP  127
  63
  64 #define EHEA_SMALL_QUEUES
  65 #define EHEA_NUM_TX_QP 1
  66 #define EHEA_LRO_MAX_AGGR 64
  67
  68 #ifdef EHEA_SMALL_QUEUES
  69 #define EHEA_MAX_CQE_COUNT      1023
  70 #define EHEA_DEF_ENTRIES_SQ     1023
  71 #define EHEA_DEF_ENTRIES_RQ1    4095
  72 #define EHEA_DEF_ENTRIES_RQ2    1023
  73 #define EHEA_DEF_ENTRIES_RQ3    1023
  74 #else
  75 #define EHEA_MAX_CQE_COUNT      4080
  76 #define EHEA_DEF_ENTRIES_SQ     4080
  77 #define EHEA_DEF_ENTRIES_RQ1    8160
  78 #define EHEA_DEF_ENTRIES_RQ2    2040
  79 #define EHEA_DEF_ENTRIES_RQ3    2040
  80 #endif
  81
  82 #define EHEA_MAX_ENTRIES_EQ 20
  83
  84 #define EHEA_SG_SQ  2
  85 #define EHEA_SG_RQ1 1
  86 #define EHEA_SG_RQ2 0
  87 #define EHEA_SG_RQ3 0
  88
  89 #define EHEA_MAX_PACKET_SIZE    9022    /* for jumbo frames */
  90 #define EHEA_RQ2_PKT_SIZE       1522
  91 #define EHEA_L_PKT_SIZE         256     /* low latency */
  92
  93 #define MAX_LRO_DESCRIPTORS 8
  94
  95 /* Send completion signaling */
  96
  97 /* Protection Domain Identifier */
  98 #define EHEA_PD_ID        0xaabcdeff
  99
 100 #define EHEA_RQ2_THRESHOLD         1
 101 #define EHEA_RQ3_THRESHOLD         9    /* use RQ3 threshold of 1522 bytes */
 102
 103 #define EHEA_SPEED_10G         10000
 104 #define EHEA_SPEED_1G           1000
 105 #define EHEA_SPEED_100M          100
 106 #define EHEA_SPEED_10M            10
 107 #define EHEA_SPEED_AUTONEG         0
 108
 109 /* Broadcast/Multicast registration types */
 110 #define EHEA_BCMC_SCOPE_ALL     0x08
 111 #define EHEA_BCMC_SCOPE_SINGLE  0x00
 112 #define EHEA_BCMC_MULTICAST     0x04
 113 #define EHEA_BCMC_BROADCAST     0x00
 114 #define EHEA_BCMC_UNTAGGED      0x02
 115 #define EHEA_BCMC_TAGGED        0x00
 116 #define EHEA_BCMC_VLANID_ALL    0x01
 117 #define EHEA_BCMC_VLANID_SINGLE 0x00
 118
 119 #define EHEA_CACHE_LINE          128
 120
 121 /* Memory Regions */
 122 #define EHEA_MR_ACC_CTRL       0x00800000
 123
 124 #define EHEA_BUSMAP_START      0x8000000000000000ULL
 125
 126 #define EHEA_WATCH_DOG_TIMEOUT 10*HZ
 127
 128 /* utility functions */
 129
 130 #define ehea_info(fmt, args...) \
 131         printk(KERN_INFO DRV_NAME ": " fmt "\n", ## args)
 132
 133 #define ehea_error(fmt, args...) \
 134         printk(KERN_ERR DRV_NAME ": Error in %s: " fmt "\n", __func__, ## args)
 135
 136 #ifdef DEBUG
 137 #define ehea_debug(fmt, args...) \
 138         printk(KERN_DEBUG DRV_NAME ": " fmt, ## args)
 139 #else
 140 #define ehea_debug(fmt, args...) do {} while (0)
 141 #endif
 142
 143 void ehea_dump(void *adr, int len, char *msg);
 144
 145 #define EHEA_BMASK(pos, length) (((pos) << 16) + (length))
 146
 147 #define EHEA_BMASK_IBM(from, to) (((63 - to) << 16) + ((to) - (from) + 1))
 148
 149 #define EHEA_BMASK_SHIFTPOS(mask) (((mask) >> 16) & 0xffff)
 150
 151 #define EHEA_BMASK_MASK(mask) \
 152         (0xffffffffffffffffULL >> ((64 - (mask)) & 0xffff))
 153
 154 #define EHEA_BMASK_SET(mask, value) \
 155         ((EHEA_BMASK_MASK(mask) & ((u64)(value))) << EHEA_BMASK_SHIFTPOS(mask))
 156
 157 #define EHEA_BMASK_GET(mask, value) \
 158         (EHEA_BMASK_MASK(mask) & (((u64)(value)) >> EHEA_BMASK_SHIFTPOS(mask)))
 159
 160 /*
 161  * Generic ehea page
 162  */
 163 struct ehea_page {
 164         u8 entries[PAGE_SIZE];
 165 };
 166
 167 /*
 168  * Generic queue in linux kernel virtual memory
 169  */
 170 struct hw_queue {
 171         u64 current_q_offset;           /* current queue entry */
 172         struct ehea_page **queue_pages; /* array of pages belonging to queue */
 173         u32 qe_size;                    /* queue entry size */
 174         u32 queue_length;               /* queue length allocated in bytes */
 175         u32 pagesize;
 176         u32 toggle_state;               /* toggle flag - per page */
 177         u32 reserved;                   /* 64 bit alignment */
 178 };
 179
 180 /*
 181  * For pSeries this is a 64bit memory address where
 182  * I/O memory is mapped into CPU address space
 183  */
 184 struct h_epa {
 185         void __iomem *addr;
 186 };
 187
 188 struct h_epa_user {
 189         u64 addr;
 190 };
 191
 192 struct h_epas {
 193         struct h_epa kernel;    /* kernel space accessible resource,
 194                                    set to 0 if unused */
 195         struct h_epa_user user; /* user space accessible resource
 196                                    set to 0 if unused */
 197 };
 198
 199 struct ehea_busmap {
 200         unsigned int entries;           /* total number of entries */
 201         unsigned int valid_sections;    /* number of valid sections */
 202         u64 *vaddr;
 203 };
 204
 205 struct ehea_qp;
 206 struct ehea_cq;
 207 struct ehea_eq;
 208 struct ehea_port;
 209 struct ehea_av;
 210
 211 /*
 212  * Queue attributes passed to ehea_create_qp()
 213  */
 214 struct ehea_qp_init_attr {
 215         /* input parameter */
 216         u32 qp_token;           /* queue token */
 217         u8 low_lat_rq1;
 218         u8 signalingtype;       /* cqe generation flag */
 219         u8 rq_count;            /* num of receive queues */
 220         u8 eqe_gen;             /* eqe generation flag */
 221         u16 max_nr_send_wqes;   /* max number of send wqes */
 222         u16 max_nr_rwqes_rq1;   /* max number of receive wqes */
 223         u16 max_nr_rwqes_rq2;
 224         u16 max_nr_rwqes_rq3;
 225         u8 wqe_size_enc_sq;
 226         u8 wqe_size_enc_rq1;
 227         u8 wqe_size_enc_rq2;
 228         u8 wqe_size_enc_rq3;
 229         u8 swqe_imm_data_len;   /* immediate data length for swqes */
 230         u16 port_nr;
 231         u16 rq2_threshold;
 232         u16 rq3_threshold;
 233         u64 send_cq_handle;
 234         u64 recv_cq_handle;
 235         u64 aff_eq_handle;
 236
 237         /* output parameter */
 238         u32 qp_nr;
 239         u16 act_nr_send_wqes;
 240         u16 act_nr_rwqes_rq1;
 241         u16 act_nr_rwqes_rq2;
 242         u16 act_nr_rwqes_rq3;
 243         u8 act_wqe_size_enc_sq;
 244         u8 act_wqe_size_enc_rq1;
 245         u8 act_wqe_size_enc_rq2;
 246         u8 act_wqe_size_enc_rq3;
 247         u32 nr_sq_pages;
 248         u32 nr_rq1_pages;
 249         u32 nr_rq2_pages;
 250         u32 nr_rq3_pages;
 251         u32 liobn_sq;
 252         u32 liobn_rq1;
 253         u32 liobn_rq2;
 254         u32 liobn_rq3;
 255 };
 256
 257 /*
 258  * Event Queue attributes, passed as paramter
 259  */
 260 struct ehea_eq_attr {
 261         u32 type;
 262         u32 max_nr_of_eqes;
 263         u8 eqe_gen;        /* generate eqe flag */
 264         u64 eq_handle;
 265         u32 act_nr_of_eqes;
 266         u32 nr_pages;
 267         u32 ist1;          /* Interrupt service token */
 268         u32 ist2;
 269         u32 ist3;
 270         u32 ist4;
 271 };
 272
 273
 274 /*
 275  * Event Queue
 276  */
 277 struct ehea_eq {
 278         struct ehea_adapter *adapter;
 279         struct hw_queue hw_queue;
 280         u64 fw_handle;
 281         struct h_epas epas;
 282         spinlock_t spinlock;
 283         struct ehea_eq_attr attr;
 284 };
 285
 286 /*
 287  * HEA Queues
 288  */
 289 struct ehea_qp {
 290         struct ehea_adapter *adapter;
 291         u64 fw_handle;                  /* QP handle for firmware calls */
 292         struct hw_queue hw_squeue;
 293         struct hw_queue hw_rqueue1;
 294         struct hw_queue hw_rqueue2;
 295         struct hw_queue hw_rqueue3;
 296         struct h_epas epas;
 297         struct ehea_qp_init_attr init_attr;
 298 };
 299
 300 /*
 301  * Completion Queue attributes
 302  */
 303 struct ehea_cq_attr {
 304         /* input parameter */
 305         u32 max_nr_of_cqes;
 306         u32 cq_token;
 307         u64 eq_handle;
 308
 309         /* output parameter */
 310         u32 act_nr_of_cqes;
 311         u32 nr_pages;
 312 };
 313
 314 /*
 315  * Completion Queue
 316  */
 317 struct ehea_cq {
 318         struct ehea_adapter *adapter;
 319         u64 fw_handle;
 320         struct hw_queue hw_queue;
 321         struct h_epas epas;
 322         struct ehea_cq_attr attr;
 323 };
 324
 325 /*
 326  * Memory Region
 327  */
 328 struct ehea_mr {
 329         struct ehea_adapter *adapter;
 330         u64 handle;
 331         u64 vaddr;
 332         u32 lkey;
 333 };
 334
 335 /*
 336  * Port state information
 337  */
 338 struct port_stats {
 339         int poll_receive_errors;
 340         int queue_stopped;
 341         int err_tcp_cksum;
 342         int err_ip_cksum;
 343         int err_frame_crc;
 344 };
 345
 346 #define EHEA_IRQ_NAME_SIZE 20
 347
 348 /*
 349  * Queue SKB Array
 350  */
 351 struct ehea_q_skb_arr {
 352         struct sk_buff **arr;           /* skb array for queue */
 353         int len;                        /* array length */
 354         int index;                      /* array index */
 355         int os_skbs;                    /* rq2/rq3 only: outstanding skbs */
 356 };
 357
 358 /*
 359  * Port resources
 360  */
 361 struct ehea_port_res {
 362         struct napi_struct napi;
 363         struct port_stats p_stats;
 364         struct ehea_mr send_mr;         /* send memory region */
 365         struct ehea_mr recv_mr;         /* receive memory region */
 366         spinlock_t xmit_lock;
 367         struct ehea_port *port;
 368         char int_recv_name[EHEA_IRQ_NAME_SIZE];
 369         char int_send_name[EHEA_IRQ_NAME_SIZE];
 370         struct ehea_qp *qp;
 371         struct ehea_cq *send_cq;
 372         struct ehea_cq *recv_cq;
 373         struct ehea_eq *eq;
 374         struct ehea_q_skb_arr rq1_skba;
 375         struct ehea_q_skb_arr rq2_skba;
 376         struct ehea_q_skb_arr rq3_skba;
 377         struct ehea_q_skb_arr sq_skba;
 378         spinlock_t netif_queue;
 379         int queue_stopped;
 380         int swqe_refill_th;
 381         atomic_t swqe_avail;
 382         int swqe_ll_count;
 383         u32 swqe_id_counter;
 384         u64 tx_packets;
 385         u64 rx_packets;
 386         u32 poll_counter;
 387         struct net_lro_mgr lro_mgr;
 388         struct net_lro_desc lro_desc[MAX_LRO_DESCRIPTORS];
 389 };
 390
 391
 392 #define EHEA_MAX_PORTS 16
 393 <<<<<<< HEAD:drivers/net/ehea/ehea.h
 394 =======
 395
 396 #define EHEA_NUM_PORTRES_FW_HANDLES    6  /* QP handle, SendCQ handle,
 397                                              RecvCQ handle, EQ handle,
 398                                              SendMR handle, RecvMR handle */
 399 #define EHEA_NUM_PORT_FW_HANDLES       1  /* EQ handle */
 400 #define EHEA_NUM_ADAPTER_FW_HANDLES    2  /* MR handle, NEQ handle */
 401
 402 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/net/ehea/ehea.h
 403 struct ehea_adapter {
 404         u64 handle;
 405         struct of_device *ofdev;
 406         struct ehea_port *port[EHEA_MAX_PORTS];
 407         struct ehea_eq *neq;       /* notification event queue */
 408         struct tasklet_struct neq_tasklet;
 409         struct ehea_mr mr;
 410         u32 pd;                    /* protection domain */
 411         u64 max_mc_mac;            /* max number of multicast mac addresses */
 412         int active_ports;
 413         struct list_head list;
 414 };
 415
 416
 417 struct ehea_mc_list {
 418         struct list_head list;
 419         u64 macaddr;
 420 };
 421
 422 <<<<<<< HEAD:drivers/net/ehea/ehea.h
 423 =======
 424 /* kdump support */
 425 struct ehea_fw_handle_entry {
 426         u64 adh;               /* Adapter Handle */
 427         u64 fwh;               /* Firmware Handle */
 428 };
 429
 430 struct ehea_fw_handle_array {
 431         struct ehea_fw_handle_entry *arr;
 432         int num_entries;
 433         struct semaphore lock;
 434 };
 435
 436 struct ehea_bcmc_reg_entry {
 437         u64 adh;               /* Adapter Handle */
 438         u32 port_id;           /* Logical Port Id */
 439         u8 reg_type;           /* Registration Type */
 440         u64 macaddr;
 441 };
 442
 443 struct ehea_bcmc_reg_array {
 444         struct ehea_bcmc_reg_entry *arr;
 445         int num_entries;
 446         struct semaphore lock;
 447 };
 448
 449 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/net/ehea/ehea.h
 450 #define EHEA_PORT_UP 1
 451 #define EHEA_PORT_DOWN 0
 452 #define EHEA_PHY_LINK_UP 1
 453 #define EHEA_PHY_LINK_DOWN 0
 454 #define EHEA_MAX_PORT_RES 16
 455 struct ehea_port {
 456         struct ehea_adapter *adapter;    /* adapter that owns this port */
 457         struct net_device *netdev;
 458         struct net_device_stats stats;
 459         struct ehea_port_res port_res[EHEA_MAX_PORT_RES];
 460         struct of_device  ofdev; /* Open Firmware Device */
 461         struct ehea_mc_list *mc_list;    /* Multicast MAC addresses */
 462         struct vlan_group *vgrp;
 463         struct ehea_eq *qp_eq;
 464         struct work_struct reset_task;
 465         struct semaphore port_lock;
 466         char int_aff_name[EHEA_IRQ_NAME_SIZE];
 467         int allmulti;                    /* Indicates IFF_ALLMULTI state */
 468         int promisc;                     /* Indicates IFF_PROMISC state */
 469         int num_tx_qps;
 470         int num_add_tx_qps;
 471         int num_mcs;
 472         int resets;
 473         u64 mac_addr;
 474         u32 logical_port_id;
 475         u32 port_speed;
 476         u32 msg_enable;
 477         u32 sig_comp_iv;
 478         u32 state;
 479         u32 lro_max_aggr;
 480         u8 phy_link;
 481         u8 full_duplex;
 482         u8 autoneg;
 483         u8 num_def_qps;
 484 };
 485
 486 struct port_res_cfg {
 487         int max_entries_rcq;
 488         int max_entries_scq;
 489         int max_entries_sq;
 490         int max_entries_rq1;
 491         int max_entries_rq2;
 492         int max_entries_rq3;
 493 };
 494
 495 enum ehea_flag_bits {
 496         __EHEA_STOP_XFER
 497 };
 498
 499 void ehea_set_ethtool_ops(struct net_device *netdev);
 500 int ehea_sense_port_attr(struct ehea_port *port);
 501 int ehea_set_portspeed(struct ehea_port *port, u32 port_speed);
 502
 503 extern u64 ehea_driver_flags;
 504 extern struct work_struct ehea_rereg_mr_task;
 505
 506 #endif  /* __EHEA_H__ */