target/linux/ixp4xx/patches-2.6.24/033-velocity_be.patch

   1 diff -Naur linux-2.6.24.orig/drivers/net/via-velocity.c linux-2.6.24/drivers/net/via-velocity.c
   2 --- linux-2.6.24.orig/drivers/net/via-velocity.c        2008-01-31 23:11:26.000000000 -0600
   3 +++ linux-2.6.24/drivers/net/via-velocity.c     2008-02-01 01:12:15.000000000 -0600
   4 @@ -254,11 +254,31 @@
   5  MODULE_LICENSE("GPL");
   6  MODULE_DESCRIPTION("VIA Networking Velocity Family Gigabit Ethernet Adapter Driver");
   7
   8 +/* Valid values for vdebug (additive, this is a bitmask):
   9 + *  0x00 => off
  10 + *  0x01 => always on
  11 + *  0x02 => additional detail on tx (rx, too, if anyone implements same)
  12 + *  0x04 => detail the initialization process
  13 + *  0x08 => spot debug detail; to be used as developers see fit
  14 + */
  15 +static int vdebug = 0;
  16 +
  17 +/* HAIL - these macros are for the normal 0x01-type tracing... */
  18 +#define HAIL(S) \
  19 +       if (vdebug&1) printk(KERN_NOTICE "%s\n", (S));
  20 +#define HAILS(S,T) \
  21 +       if (vdebug&1) printk(KERN_NOTICE "%s -> status=0x%x\n", (S), (T));
  22 +
  23  #define VELOCITY_PARAM(N,D) \
  24          static int N[MAX_UNITS]=OPTION_DEFAULT;\
  25         module_param_array(N, int, NULL, 0); \
  26          MODULE_PARM_DESC(N, D);
  27
  28 +#define VELO_DEBUG_MIN   0
  29 +#define VELO_DEBUG_MAX   255
  30 +#define VELO_DEBUG_DEF   0
  31 +VELOCITY_PARAM(velo_debug, "Debug level");
  32 +
  33  #define RX_DESC_MIN     64
  34  #define RX_DESC_MAX     255
  35  #define RX_DESC_DEF     64
  36 @@ -557,12 +577,12 @@
  37         if (val == -1)
  38                 *opt |= (def ? flag : 0);
  39         else if (val < 0 || val > 1) {
  40 -               printk(KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (0-1)\n",
  41 -                       devname, name);
  42 +               printk(KERN_NOTICE "via-velocity: the value of parameter %s is invalid, the valid range is (0-1)\n",
  43 +                       name);
  44                 *opt |= (def ? flag : 0);
  45         } else {
  46 -               printk(KERN_INFO "%s: set parameter %s to %s\n",
  47 -                       devname, name, val ? "TRUE" : "FALSE");
  48 +               printk(KERN_INFO "via-velocity: set parameter %s to %s\n",
  49 +                       name, val ? "TRUE" : "FALSE");
  50                 *opt |= (val ? flag : 0);
  51         }
  52  }
  53 @@ -580,6 +600,7 @@
  54  static void __devinit velocity_get_options(struct velocity_opt *opts, int index, char *devname)
  55  {
  56
  57 +       velocity_set_int_opt(&opts->velo_debug, velo_debug[index], VELO_DEBUG_MIN, VELO_DEBUG_MAX, VELO_DEBUG_DEF, "velo_debug", devname);
  58         velocity_set_int_opt(&opts->rx_thresh, rx_thresh[index], RX_THRESH_MIN, RX_THRESH_MAX, RX_THRESH_DEF, "rx_thresh", devname);
  59         velocity_set_int_opt(&opts->DMA_length, DMA_length[index], DMA_LENGTH_MIN, DMA_LENGTH_MAX, DMA_LENGTH_DEF, "DMA_length", devname);
  60         velocity_set_int_opt(&opts->numrx, RxDescriptors[index], RX_DESC_MIN, RX_DESC_MAX, RX_DESC_DEF, "RxDescriptors", devname);
  61 @@ -593,6 +614,7 @@
  62         velocity_set_int_opt((int *) &opts->wol_opts, wol_opts[index], WOL_OPT_MIN, WOL_OPT_MAX, WOL_OPT_DEF, "Wake On Lan options", devname);
  63         velocity_set_int_opt((int *) &opts->int_works, int_works[index], INT_WORKS_MIN, INT_WORKS_MAX, INT_WORKS_DEF, "Interrupt service works", devname);
  64         opts->numrx = (opts->numrx & ~3);
  65 +       vdebug = opts->velo_debug;
  66  }
  67
  68  /**
  69 @@ -608,6 +630,8 @@
  70         struct mac_regs __iomem * regs = vptr->mac_regs;
  71         unsigned short vid;
  72
  73 +       HAIL("velocity_init_cam_filter");
  74 +
  75         /* Turn on MCFG_PQEN, turn off MCFG_RTGOPT */
  76         WORD_REG_BITS_SET(MCFG_PQEN, MCFG_RTGOPT, &regs->MCFG);
  77         WORD_REG_BITS_ON(MCFG_VIDFR, &regs->MCFG);
  78 @@ -636,8 +660,10 @@
  79         } else {
  80                 u16 temp = 0;
  81                 mac_set_vlan_cam(regs, 0, (u8 *) &temp);
  82 -               temp = 1;
  83 -               mac_set_vlan_cam_mask(regs, (u8 *) &temp);
  84 +               /* temp = 1;                                    BE */
  85 +               /* mac_set_vlan_cam_mask(regs, (u8 *) &temp);   BE */
  86 +               vptr->vCAMmask[0] |= 1;                      /* BE */
  87 +               mac_set_vlan_cam_mask(regs, vptr->vCAMmask); /* BE */
  88         }
  89  }
  90
  91 @@ -675,13 +701,15 @@
  92         struct mac_regs __iomem * regs = vptr->mac_regs;
  93         int i;
  94
  95 +       HAIL("velocity_rx_reset");
  96         vptr->rd_dirty = vptr->rd_filled = vptr->rd_curr = 0;
  97
  98         /*
  99          *      Init state, all RD entries belong to the NIC
 100          */
 101         for (i = 0; i < vptr->options.numrx; ++i)
 102 -               vptr->rd_ring[i].rdesc0.owner = OWNED_BY_NIC;
 103 +               /* vptr->rd_ring[i].rdesc0.owner = OWNED_BY_NIC; BE */
 104 +               vptr->rd_ring[i].rdesc0 |= cpu_to_le32(BE_OWNED_BY_NIC); /* BE */
 105
 106         writew(vptr->options.numrx, &regs->RBRDU);
 107         writel(vptr->rd_pool_dma, &regs->RDBaseLo);
 108 @@ -704,12 +732,15 @@
 109         struct mac_regs __iomem * regs = vptr->mac_regs;
 110         int i, mii_status;
 111
 112 +       if (vdebug&5) printk(KERN_NOTICE "velocity_init_registers: entering\n");
 113 +
 114         mac_wol_reset(regs);
 115
 116         switch (type) {
 117         case VELOCITY_INIT_RESET:
 118         case VELOCITY_INIT_WOL:
 119
 120 +               if (vdebug&4) printk(KERN_NOTICE "velocity_init_registers: RESET or WOL\n");
 121                 netif_stop_queue(vptr->dev);
 122
 123                 /*
 124 @@ -737,12 +768,13 @@
 125
 126         case VELOCITY_INIT_COLD:
 127         default:
 128 +               if (vdebug&4) printk(KERN_NOTICE "velocity_init_registers: COLD or default\n");
 129                 /*
 130                  *      Do reset
 131                  */
 132                 velocity_soft_reset(vptr);
 133 +               if (vdebug&4) printk(KERN_NOTICE "velocity_init_registers: soft reset complete.\n");
 134                 mdelay(5);
 135 -
 136                 mac_eeprom_reload(regs);
 137                 for (i = 0; i < 6; i++) {
 138                         writeb(vptr->dev->dev_addr[i], &(regs->PAR[i]));
 139 @@ -760,11 +792,16 @@
 140                  */
 141                 BYTE_REG_BITS_SET(CFGB_OFSET, (CFGB_CRANDOM | CFGB_CAP | CFGB_MBA | CFGB_BAKOPT), &regs->CFGB);
 142
 143 +               if (vdebug&4) printk(KERN_NOTICE "velocity_init_registers: Initializing CAM filter\n");
 144                 /*
 145                  *      Init CAM filter
 146                  */
 147 +               if (vdebug&8) printk(KERN_NOTICE "velocity: spot debug: about to init CAM filters\n");
 148 +               mdelay(5);  /* MJW - ARM processors, kernel 2.6.19 - this fixes oopses and hangs */
 149                 velocity_init_cam_filter(vptr);
 150 +               if (vdebug&8) printk(KERN_NOTICE "velocity: spot debug: init CAM filters complete\n");
 151
 152 +               if (vdebug&4) printk(KERN_NOTICE "velocity_init_registers: Setting packet filter\n");
 153                 /*
 154                  *      Set packet filter: Receive directed and broadcast address
 155                  */
 156 @@ -774,10 +811,12 @@
 157                  *      Enable MII auto-polling
 158                  */
 159                 enable_mii_autopoll(regs);
 160 +               if (vdebug&4) printk(KERN_NOTICE "velocity_init_registers: enable_mii_autopoll complete.\n");
 161
 162                 vptr->int_mask = INT_MASK_DEF;
 163
 164 -               writel(cpu_to_le32(vptr->rd_pool_dma), &regs->RDBaseLo);
 165 +               /* writel(cpu_to_le32(vptr->rd_pool_dma), &regs->RDBaseLo); BE */
 166 +               writel((vptr->rd_pool_dma), &regs->RDBaseLo); /* BE */
 167                 writew(vptr->options.numrx - 1, &regs->RDCSize);
 168                 mac_rx_queue_run(regs);
 169                 mac_rx_queue_wake(regs);
 170 @@ -785,10 +824,13 @@
 171                 writew(vptr->options.numtx - 1, &regs->TDCSize);
 172
 173                 for (i = 0; i < vptr->num_txq; i++) {
 174 -                       writel(cpu_to_le32(vptr->td_pool_dma[i]), &(regs->TDBaseLo[i]));
 175 +                       /* writel(cpu_to_le32(vptr->td_pool_dma[i]), &(regs->TDBaseLo[i])); BE */
 176 +                       writel((vptr->td_pool_dma[i]), &(regs->TDBaseLo[i])); /* BE */
 177                         mac_tx_queue_run(regs, i);
 178                 }
 179
 180 +               if (vdebug&4) printk(KERN_NOTICE "velocity_init_registers: DMA settings complete.\n");
 181 +
 182                 init_flow_control_register(vptr);
 183
 184                 writel(CR0_STOP, &regs->CR0Clr);
 185 @@ -807,8 +849,10 @@
 186
 187                 enable_flow_control_ability(vptr);
 188                 mac_hw_mibs_init(regs);
 189 +               if (vdebug&4) printk(KERN_NOTICE "velocity_init_registers: Set interrupt mask\n");
 190                 mac_write_int_mask(vptr->int_mask, regs);
 191                 mac_clear_isr(regs);
 192 +               if (vdebug&4) printk(KERN_NOTICE "velocity_init_registers: complete.\n");
 193
 194         }
 195  }
 196 @@ -826,6 +870,7 @@
 197         struct mac_regs __iomem * regs = vptr->mac_regs;
 198         int i = 0;
 199
 200 +       HAIL("velocity_soft_reset");
 201         writel(CR0_SFRST, &regs->CR0Set);
 202
 203         for (i = 0; i < W_MAX_TIMEOUT; i++) {
 204 @@ -888,6 +933,7 @@
 205                         VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION);
 206                 printk(KERN_INFO "Copyright (c) 2002, 2003 VIA Networking Technologies, Inc.\n");
 207                 printk(KERN_INFO "Copyright (c) 2004 Red Hat Inc.\n");
 208 +               printk(KERN_INFO "BE support, misc. fixes MJW 01Jan2007 - may be unstable\n");
 209                 first = 0;
 210         }
 211
 212 @@ -1104,6 +1150,7 @@
 213         dma_addr_t pool_dma;
 214         u8 *pool;
 215
 216 +       HAIL("velocity_init_rings");
 217         /*
 218          *      Allocate all RD/TD rings a single pool
 219          */
 220 @@ -1166,6 +1213,7 @@
 221  static void velocity_free_rings(struct velocity_info *vptr)
 222  {
 223         int size;
 224 +       HAIL("velocity_free_rings");
 225
 226         size = vptr->options.numrx * sizeof(struct rx_desc) +
 227                vptr->options.numtx * sizeof(struct tx_desc) * vptr->num_txq;
 228 @@ -1182,6 +1230,7 @@
 229         struct mac_regs __iomem *regs = vptr->mac_regs;
 230         int avail, dirty, unusable;
 231
 232 +       HAIL("velocity_give_many_rx_descs");
 233         /*
 234          * RD number must be equal to 4X per hardware spec
 235          * (programming guide rev 1.20, p.13)
 236 @@ -1195,7 +1244,8 @@
 237         dirty = vptr->rd_dirty - unusable;
 238         for (avail = vptr->rd_filled & 0xfffc; avail; avail--) {
 239                 dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1;
 240 -               vptr->rd_ring[dirty].rdesc0.owner = OWNED_BY_NIC;
 241 +               /* vptr->rd_ring[dirty].rdesc0.owner = OWNED_BY_NIC; BE */
 242 +               vptr->rd_ring[dirty].rdesc0 |= cpu_to_le32(BE_OWNED_BY_NIC); /* BE */
 243         }
 244
 245         writew(vptr->rd_filled & 0xfffc, &regs->RBRDU);
 246 @@ -1205,12 +1255,14 @@
 247  static int velocity_rx_refill(struct velocity_info *vptr)
 248  {
 249         int dirty = vptr->rd_dirty, done = 0, ret = 0;
 250 +       HAIL("velocity_rx_refill");
 251
 252         do {
 253                 struct rx_desc *rd = vptr->rd_ring + dirty;
 254
 255                 /* Fine for an all zero Rx desc at init time as well */
 256 -               if (rd->rdesc0.owner == OWNED_BY_NIC)
 257 +               /* if (rd->rdesc0.owner == OWNED_BY_NIC) BE */
 258 +               if (rd->rdesc0 & cpu_to_le32(BE_OWNED_BY_NIC)) /* BE */
 259                         break;
 260
 261                 if (!vptr->rd_info[dirty].skb) {
 262 @@ -1244,6 +1296,7 @@
 263         int ret;
 264         int mtu = vptr->dev->mtu;
 265
 266 +       HAIL("velocity_init_rd_ring");
 267         vptr->rx_buf_sz = (mtu <= ETH_DATA_LEN) ? PKT_BUF_SZ : mtu + 32;
 268
 269         vptr->rd_info = kcalloc(vptr->options.numrx,
 270 @@ -1275,6 +1328,7 @@
 271  {
 272         int i;
 273
 274 +       HAIL("velocity_free_rd_ring");
 275         if (vptr->rd_info == NULL)
 276                 return;
 277
 278 @@ -1314,6 +1368,7 @@
 279         struct tx_desc *td;
 280         struct velocity_td_info *td_info;
 281
 282 +       HAIL("velocity_init_td_ring");
 283         /* Init the TD ring entries */
 284         for (j = 0; j < vptr->num_txq; j++) {
 285                 curr = vptr->td_pool_dma[j];
 286 @@ -1350,6 +1405,7 @@
 287         struct velocity_td_info * td_info = &(vptr->td_infos[q][n]);
 288         int i;
 289
 290 +       HAIL("velocity_free_td_ring_entry");
 291         if (td_info == NULL)
 292                 return;
 293
 294 @@ -1379,6 +1435,7 @@
 295  {
 296         int i, j;
 297
 298 +       HAIL("velocity_free_td_ring");
 299         for (j = 0; j < vptr->num_txq; j++) {
 300                 if (vptr->td_infos[j] == NULL)
 301                         continue;
 302 @@ -1406,34 +1463,42 @@
 303         struct net_device_stats *stats = &vptr->stats;
 304         int rd_curr = vptr->rd_curr;
 305         int works = 0;
 306 +       u16 wRSR; /* BE */
 307
 308 +       HAILS("velocity_rx_srv", status);
 309         do {
 310                 struct rx_desc *rd = vptr->rd_ring + rd_curr;
 311
 312                 if (!vptr->rd_info[rd_curr].skb)
 313                         break;
 314
 315 -               if (rd->rdesc0.owner == OWNED_BY_NIC)
 316 +               /* if (rd->rdesc0.owner == OWNED_BY_NIC) BE */
 317 +               if (rd->rdesc0 & cpu_to_le32(BE_OWNED_BY_NIC)) /* BE */
 318                         break;
 319
 320                 rmb();
 321
 322 +               wRSR = (u16)(cpu_to_le32(rd->rdesc0)); /* BE */
 323                 /*
 324                  *      Don't drop CE or RL error frame although RXOK is off
 325                  */
 326 -               if ((rd->rdesc0.RSR & RSR_RXOK) || (!(rd->rdesc0.RSR & RSR_RXOK) && (rd->rdesc0.RSR & (RSR_CE | RSR_RL)))) {
 327 +               /* if ((rd->rdesc0.RSR & RSR_RXOK) || (!(rd->rdesc0.RSR & RSR_RXOK) && (rd->rdesc0.RSR & (RSR_CE | RSR_RL)))) { BE */
 328 +               if ((wRSR & RSR_RXOK) || (!(wRSR & RSR_RXOK) && (wRSR & (RSR_CE | RSR_RL)))) { /* BE */
 329                         if (velocity_receive_frame(vptr, rd_curr) < 0)
 330                                 stats->rx_dropped++;
 331                 } else {
 332 -                       if (rd->rdesc0.RSR & RSR_CRC)
 333 +                       /* if (rd->rdesc0.RSR & RSR_CRC) BE */
 334 +                       if (wRSR & RSR_CRC) /* BE */
 335                                 stats->rx_crc_errors++;
 336 -                       if (rd->rdesc0.RSR & RSR_FAE)
 337 +                       /* if (rd->rdesc0.RSR & RSR_FAE) BE */
 338 +                       if (wRSR & RSR_FAE) /* BE */
 339                                 stats->rx_frame_errors++;
 340
 341                         stats->rx_dropped++;
 342                 }
 343
 344 -               rd->inten = 1;
 345 +               /* rd->inten = 1; BE */
 346 +               rd->ltwo |= cpu_to_le32(BE_INT_ENABLE); /* BE */
 347
 348                 vptr->dev->last_rx = jiffies;
 349
 350 @@ -1464,13 +1529,21 @@
 351
 352  static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb)
 353  {
 354 +       u8 bCSM;
 355 +       HAIL("velocity_rx_csum");
 356         skb->ip_summed = CHECKSUM_NONE;
 357
 358 -       if (rd->rdesc1.CSM & CSM_IPKT) {
 359 -               if (rd->rdesc1.CSM & CSM_IPOK) {
 360 -                       if ((rd->rdesc1.CSM & CSM_TCPKT) ||
 361 -                                       (rd->rdesc1.CSM & CSM_UDPKT)) {
 362 -                               if (!(rd->rdesc1.CSM & CSM_TUPOK)) {
 363 +//     if (rd->rdesc1.CSM & CSM_IPKT) {
 364 +//             if (rd->rdesc1.CSM & CSM_IPOK) {
 365 +//                     if ((rd->rdesc1.CSM & CSM_TCPKT) ||
 366 +//                                     (rd->rdesc1.CSM & CSM_UDPKT)) {
 367 +//                             if (!(rd->rdesc1.CSM & CSM_TUPOK)) {
 368 +       bCSM = (u8)(cpu_to_le32(rd->rdesc1) >> 16); /* BE */
 369 +       if (bCSM & CSM_IPKT) {
 370 +               if (bCSM & CSM_IPOK) {
 371 +                       if ((bCSM & CSM_TCPKT) ||
 372 +                           (bCSM & CSM_UDPKT)) {
 373 +                               if (!(bCSM & CSM_TUPOK)) {      /* BE */
 374                                         return;
 375                                 }
 376                         }
 377 @@ -1496,9 +1569,11 @@
 378  {
 379         int ret = -1;
 380
 381 +       HAIL("velocity_rx_copy");
 382         if (pkt_size < rx_copybreak) {
 383                 struct sk_buff *new_skb;
 384
 385 +               HAIL("velocity_rx_copy (working...)");
 386                 new_skb = dev_alloc_skb(pkt_size + 2);
 387                 if (new_skb) {
 388                         new_skb->dev = vptr->dev;
 389 @@ -1529,10 +1604,12 @@
 390  static inline void velocity_iph_realign(struct velocity_info *vptr,
 391                                         struct sk_buff *skb, int pkt_size)
 392  {
 393 +       HAIL("velocity_iph_realign");
 394         /* FIXME - memmove ? */
 395         if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) {
 396                 int i;
 397
 398 +               HAIL("velocity_iph_realign (working...)");
 399                 for (i = pkt_size; i >= 0; i--)
 400                         *(skb->data + i + 2) = *(skb->data + i);
 401                 skb_reserve(skb, 2);
 402 @@ -1551,19 +1628,27 @@
 403  static int velocity_receive_frame(struct velocity_info *vptr, int idx)
 404  {
 405         void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int);
 406 +       u16 pkt_len; /* BE */
 407 +       u16 wRSR;    /* BE */
 408 +       struct sk_buff *skb;
 409         struct net_device_stats *stats = &vptr->stats;
 410         struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]);
 411         struct rx_desc *rd = &(vptr->rd_ring[idx]);
 412 -       int pkt_len = rd->rdesc0.len;
 413 -       struct sk_buff *skb;
 414 +       /* int pkt_len = rd->rdesc0.len BE */;
 415 +
 416 +       pkt_len = ((cpu_to_le32(rd->rdesc0) >> 16) & 0x00003FFFUL); /* BE */
 417 +       wRSR = (u16)(cpu_to_le32(rd->rdesc0)); /* BE */
 418
 419 -       if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) {
 420 +       HAIL("velocity_receive_frame");
 421 +       /* if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) { BE */
 422 +       if (wRSR & (RSR_STP | RSR_EDP)) { /* BE */
 423                 VELOCITY_PRT(MSG_LEVEL_VERBOSE, KERN_ERR " %s : the received frame span multple RDs.\n", vptr->dev->name);
 424                 stats->rx_length_errors++;
 425                 return -EINVAL;
 426         }
 427
 428 -       if (rd->rdesc0.RSR & RSR_MAR)
 429 +       /* if (rd->rdesc0.RSR & RSR_MAR) BE */
 430 +       if (wRSR & RSR_MAR) /* BE */
 431                 vptr->stats.multicast++;
 432
 433         skb = rd_info->skb;
 434 @@ -1576,7 +1661,8 @@
 435          */
 436
 437         if (vptr->flags & VELOCITY_FLAGS_VAL_PKT_LEN) {
 438 -               if (rd->rdesc0.RSR & RSR_RL) {
 439 +               /* if (rd->rdesc0.RSR & RSR_RL) { BE */
 440 +               if (wRSR & RSR_RL) { /* BE */
 441                         stats->rx_length_errors++;
 442                         return -EINVAL;
 443                 }
 444 @@ -1620,6 +1706,7 @@
 445         struct rx_desc *rd = &(vptr->rd_ring[idx]);
 446         struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]);
 447
 448 +       HAIL("velocity_alloc_rx_buf");
 449         rd_info->skb = dev_alloc_skb(vptr->rx_buf_sz + 64);
 450         if (rd_info->skb == NULL)
 451                 return -ENOMEM;
 452 @@ -1637,10 +1724,14 @@
 453          */
 454
 455         *((u32 *) & (rd->rdesc0)) = 0;
 456 -       rd->len = cpu_to_le32(vptr->rx_buf_sz);
 457 -       rd->inten = 1;
 458 +       /* rd->len = cpu_to_le32(vptr->rx_buf_sz);              BE */
 459 +       /* rd->inten = 1;                                       BE */
 460         rd->pa_low = cpu_to_le32(rd_info->skb_dma);
 461 -       rd->pa_high = 0;
 462 +       /* rd->pa_high = 0;                                     BE */
 463 +       rd->ltwo &= cpu_to_le32(0xC000FFFFUL);                  /* BE */
 464 +       rd->ltwo |= cpu_to_le32((vptr->rx_buf_sz << 16));       /* BE */
 465 +       rd->ltwo |= cpu_to_le32(BE_INT_ENABLE);                 /* BE */
 466 +       rd->ltwo &= cpu_to_le32(0xFFFF0000UL);                  /* BE */
 467         return 0;
 468  }
 469
 470 @@ -1661,9 +1752,11 @@
 471         int full = 0;
 472         int idx;
 473         int works = 0;
 474 +       u16 wTSR; /* BE */
 475         struct velocity_td_info *tdinfo;
 476         struct net_device_stats *stats = &vptr->stats;
 477
 478 +       HAILS("velocity_tx_srv", status);
 479         for (qnum = 0; qnum < vptr->num_txq; qnum++) {
 480                 for (idx = vptr->td_tail[qnum]; vptr->td_used[qnum] > 0;
 481                         idx = (idx + 1) % vptr->options.numtx) {
 482 @@ -1674,22 +1767,29 @@
 483                         td = &(vptr->td_rings[qnum][idx]);
 484                         tdinfo = &(vptr->td_infos[qnum][idx]);
 485
 486 -                       if (td->tdesc0.owner == OWNED_BY_NIC)
 487 +                       /* if (td->tdesc0.owner == OWNED_BY_NIC) BE */
 488 +                       if (td->tdesc0 & cpu_to_le32(BE_OWNED_BY_NIC)) /* BE */
 489                                 break;
 490
 491                         if ((works++ > 15))
 492                                 break;
 493
 494 -                       if (td->tdesc0.TSR & TSR0_TERR) {
 495 +                       wTSR = (u16)cpu_to_le32(td->tdesc0);
 496 +                       /* if (td->tdesc0.TSR & TSR0_TERR) { BE */
 497 +                       if (wTSR & TSR0_TERR) { /* BE */
 498                                 stats->tx_errors++;
 499                                 stats->tx_dropped++;
 500 -                               if (td->tdesc0.TSR & TSR0_CDH)
 501 +                               /* if (td->tdesc0.TSR & TSR0_CDH) BE */
 502 +                               if (wTSR & TSR0_CDH) /* BE */
 503                                         stats->tx_heartbeat_errors++;
 504 -                               if (td->tdesc0.TSR & TSR0_CRS)
 505 +                               /* if (td->tdesc0.TSR & TSR0_CRS) BE */
 506 +                               if (wTSR & TSR0_CRS) /* BE */
 507                                         stats->tx_carrier_errors++;
 508 -                               if (td->tdesc0.TSR & TSR0_ABT)
 509 +                               /* if (td->tdesc0.TSR & TSR0_ABT) BE */
 510 +                               if (wTSR & TSR0_ABT) /* BE */
 511                                         stats->tx_aborted_errors++;
 512 -                               if (td->tdesc0.TSR & TSR0_OWC)
 513 +                               /* if (td->tdesc0.TSR & TSR0_OWC) BE */
 514 +                               if (wTSR & TSR0_OWC) /* BE */
 515                                         stats->tx_window_errors++;
 516                         } else {
 517                                 stats->tx_packets++;
 518 @@ -1778,6 +1878,7 @@
 519
 520  static void velocity_error(struct velocity_info *vptr, int status)
 521  {
 522 +       HAILS("velocity_error", status);
 523
 524         if (status & ISR_TXSTLI) {
 525                 struct mac_regs __iomem * regs = vptr->mac_regs;
 526 @@ -1867,6 +1968,7 @@
 527         struct sk_buff *skb = tdinfo->skb;
 528         int i;
 529
 530 +       HAIL("velocity_free_tx_buf");
 531         /*
 532          *      Don't unmap the pre-allocated tx_bufs
 533          */
 534 @@ -2067,6 +2169,7 @@
 535         struct velocity_td_info *tdinfo;
 536         unsigned long flags;
 537         int index;
 538 +       u32 lbufsz; /* BE */
 539
 540         int pktlen = skb->len;
 541
 542 @@ -2083,9 +2186,18 @@
 543         td_ptr = &(vptr->td_rings[qnum][index]);
 544         tdinfo = &(vptr->td_infos[qnum][index]);
 545
 546 -       td_ptr->tdesc1.TCPLS = TCPLS_NORMAL;
 547 -       td_ptr->tdesc1.TCR = TCR0_TIC;
 548 -       td_ptr->td_buf[0].queue = 0;
 549 +       td_ptr->tdesc0 = 0x00000000UL;                            /* BE */
 550 +       td_ptr->tdesc1 = 0x00000000UL;                            /* BE */
 551 +
 552 +       /* td_ptr->tdesc1.TCPLS = TCPLS_NORMAL;         BE */
 553 +       td_ptr->tdesc1 &= cpu_to_le32(0xfcffffffUL);              /* BE */
 554 +       td_ptr->tdesc1 |= cpu_to_le32(((u32)TCPLS_NORMAL) << 24); /* BE */
 555 +
 556 +       /* td_ptr->tdesc1.TCR = TCR0_TIC;               BE */
 557 +       td_ptr->tdesc1 |= cpu_to_le32(BE_TCR_TIC);                /* BE */
 558 +
 559 +       /*      td_ptr->td_buf[0].queue = 0;            BE */
 560 +       td_ptr->td_buf[0].ltwo &= cpu_to_le32(~BE_QUEUE_ENABLE);  /* BE */
 561
 562         /*
 563          *      Pad short frames.
 564 @@ -2097,20 +2209,36 @@
 565                 memset(tdinfo->buf + skb->len, 0, ETH_ZLEN - skb->len);
 566                 tdinfo->skb = skb;
 567                 tdinfo->skb_dma[0] = tdinfo->buf_dma;
 568 -               td_ptr->tdesc0.pktsize = pktlen;
 569 +               /* td_ptr->tdesc0.pktsize = pktlen; */
 570 +               td_ptr->tdesc0 &= cpu_to_le32(0xc000ffffUL); /* BE */
 571 +               lbufsz = pktlen; /* Assign, and make sure it's unsigned 32 bits - BE */
 572 +               lbufsz = lbufsz << 16; /* BE - shift over     */
 573 +               td_ptr->tdesc0 |= cpu_to_le32(lbufsz); /* BE */
 574 +
 575                 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
 576 -               td_ptr->td_buf[0].pa_high = 0;
 577 -               td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
 578 +               /* td_ptr->td_buf[0].pa_high = 0; */
 579 +               /* td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize; */
 580 +               td_ptr->td_buf[0].ltwo = cpu_to_le32(lbufsz);   /* BE */
 581                 tdinfo->nskb_dma = 1;
 582 -               td_ptr->tdesc1.CMDZ = 2;
 583 +               /* td_ptr->tdesc1.CMDZ = 2; */
 584 +               td_ptr->tdesc1 &= cpu_to_le32(0x0fffffffUL); /* BE */
 585 +               td_ptr->tdesc1 |= cpu_to_le32(((u32)0x2) << 28); /* BE */
 586         } else
 587  #ifdef VELOCITY_ZERO_COPY_SUPPORT
 588 +       /*
 589 +        * BE - NOTE on the VELOCITY_ZERO_COPY_SUPPORT:
 590 +        * This block of code has NOT been patched up for BE support, as
 591 +        * it is certainly broken -- if it compiles at all.  Since the BE
 592 +        * fixes depend on the broken code, attempts to convert to BE support
 593 +        * would almost certainly confuse more than help.
 594 +        */
 595         if (skb_shinfo(skb)->nr_frags > 0) {
 596                 int nfrags = skb_shinfo(skb)->nr_frags;
 597                 tdinfo->skb = skb;
 598                 if (nfrags > 6) {
 599                         skb_copy_from_linear_data(skb, tdinfo->buf, skb->len);
 600                         tdinfo->skb_dma[0] = tdinfo->buf_dma;
 601 +                       /* BE: Er, exactly what value are we assigning in this next line? */
 602                         td_ptr->tdesc0.pktsize =
 603                         td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
 604                         td_ptr->td_buf[0].pa_high = 0;
 605 @@ -2127,6 +2255,7 @@
 606                         /* FIXME: support 48bit DMA later */
 607                         td_ptr->td_buf[i].pa_low = cpu_to_le32(tdinfo->skb_dma);
 608                         td_ptr->td_buf[i].pa_high = 0;
 609 +                       /* BE: This next line can't be right: */
 610                         td_ptr->td_buf[i].bufsize = skb->len->skb->data_len;
 611
 612                         for (i = 0; i < nfrags; i++) {
 613 @@ -2144,7 +2273,7 @@
 614                 }
 615
 616         } else
 617 -#endif
 618 +#endif /* (broken) VELOCITY_ZERO_COPY_SUPPORT */
 619         {
 620                 /*
 621                  *      Map the linear network buffer into PCI space and
 622 @@ -2152,19 +2281,29 @@
 623                  */
 624                 tdinfo->skb = skb;
 625                 tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE);
 626 -               td_ptr->tdesc0.pktsize = pktlen;
 627 +               /* td_ptr->tdesc0.pktsize = pktlen;                               BE */
 628 +               td_ptr->tdesc0 &= cpu_to_le32(0xc000ffffUL);                   /* BE */
 629 +               lbufsz = pktlen; /* Assign, and make sure it's unsigned 32 bits - BE */
 630 +               lbufsz = lbufsz << 16;                                         /* BE */
 631 +               td_ptr->tdesc0 |= cpu_to_le32(lbufsz);                         /* BE */
 632                 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
 633 -               td_ptr->td_buf[0].pa_high = 0;
 634 -               td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
 635 +               /* td_ptr->td_buf[0].pa_high = 0;                                 BE */
 636 +               /* td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;            BE */
 637 +               td_ptr->td_buf[0].ltwo = cpu_to_le32(lbufsz);                  /* BE */
 638                 tdinfo->nskb_dma = 1;
 639 -               td_ptr->tdesc1.CMDZ = 2;
 640 +               /* td_ptr->tdesc1.CMDZ = 2;                                       BE */
 641 +               td_ptr->tdesc1 &= cpu_to_le32(0x0fffffffUL);                   /* BE */
 642 +               td_ptr->tdesc1 |= cpu_to_le32(((u32)0x2) << 28);               /* BE */
 643         }
 644
 645         if (vptr->vlgrp && vlan_tx_tag_present(skb)) {
 646 -               td_ptr->tdesc1.pqinf.VID = vlan_tx_tag_get(skb);
 647 -               td_ptr->tdesc1.pqinf.priority = 0;
 648 -               td_ptr->tdesc1.pqinf.CFI = 0;
 649 -               td_ptr->tdesc1.TCR |= TCR0_VETAG;
 650 +               /* td_ptr->tdesc1.pqinf.VID = vlan_tx_tag_get(skb);               BE */
 651 +               /* td_ptr->tdesc1.pqinf.priority = 0;                             BE */
 652 +               /* td_ptr->tdesc1.pqinf.CFI = 0;                                  BE */
 653 +               /* td_ptr->tdesc1.TCR |= TCR0_VETAG;                              BE */
 654 +               td_ptr->tdesc1 &= cpu_to_le32(0xFFFF0000UL);                   /* BE */
 655 +               td_ptr->tdesc1 |= cpu_to_le32(vlan_tx_tag_get(skb));           /* BE */
 656 +               td_ptr->tdesc1 |= cpu_to_le32(BE_TCR_VETAG);                   /* BE */
 657         }
 658
 659         /*
 660 @@ -2174,26 +2313,34 @@
 661                                  && (skb->ip_summed == CHECKSUM_PARTIAL)) {
 662                 const struct iphdr *ip = ip_hdr(skb);
 663                 if (ip->protocol == IPPROTO_TCP)
 664 -                       td_ptr->tdesc1.TCR |= TCR0_TCPCK;
 665 +                       /* td_ptr->tdesc1.TCR |= TCR0_TCPCK;    BE */
 666 +                       td_ptr->tdesc1 |= cpu_to_le32(BE_TCR_TCPCK);    /* BE */
 667                 else if (ip->protocol == IPPROTO_UDP)
 668 -                       td_ptr->tdesc1.TCR |= (TCR0_UDPCK);
 669 -               td_ptr->tdesc1.TCR |= TCR0_IPCK;
 670 -       }
 671 +                       /* td_ptr->tdesc1.TCR |= (TCR0_UDPCK);  BE */
 672 +                       td_ptr->tdesc1 |= cpu_to_le32(BE_TCR_UDPCK);    /* BE */
 673 +               /* td_ptr->tdesc1.TCR |= TCR0_IPCK;             BE */
 674 +               td_ptr->tdesc1 |= cpu_to_le32(BE_TCR_IPCK);             /* BE */
 675 +       }
 676         {
 677
 678                 int prev = index - 1;
 679
 680                 if (prev < 0)
 681                         prev = vptr->options.numtx - 1;
 682 -               td_ptr->tdesc0.owner = OWNED_BY_NIC;
 683 +               /* td_ptr->tdesc0.owner = OWNED_BY_NIC; BE */
 684 +               td_ptr->tdesc0 |= cpu_to_le32(BE_OWNED_BY_NIC); /* BE */
 685                 vptr->td_used[qnum]++;
 686                 vptr->td_curr[qnum] = (index + 1) % vptr->options.numtx;
 687
 688                 if (AVAIL_TD(vptr, qnum) < 1)
 689                         netif_stop_queue(dev);
 690
 691 -               td_ptr = &(vptr->td_rings[qnum][prev]);
 692 -               td_ptr->td_buf[0].queue = 1;
 693 +               td_ptr = &(vptr->td_rings[qnum][prev]);
 694 +               /* td_ptr->td_buf[0].queue = 1; BE */
 695 +               td_ptr->td_buf[0].ltwo |= cpu_to_le32(BE_QUEUE_ENABLE); /* BE */
 696 +               if (vdebug&2) printk(KERN_NOTICE "velocity_xmit: (%s) len=%d idx=%d tdesc0=0x%x tdesc1=0x%x ltwo=0x%x\n",
 697 +                       (pktlen<ETH_ZLEN) ? "short" : "normal", pktlen, index,
 698 +                       td_ptr->tdesc0, td_ptr->tdesc1, td_ptr->td_buf[0].ltwo);
 699                 mac_tx_queue_wake(vptr->mac_regs, qnum);
 700         }
 701         dev->trans_start = jiffies;
 702 @@ -2219,7 +2366,7 @@
 703         u32 isr_status;
 704         int max_count = 0;
 705
 706 -
 707 +       HAIL("velocity_intr");
 708         spin_lock(&vptr->lock);
 709         isr_status = mac_read_isr(vptr->mac_regs);
 710
 711 @@ -2238,7 +2385,10 @@
 712
 713         while (isr_status != 0) {
 714                 mac_write_isr(vptr->mac_regs, isr_status);
 715 -               if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI)))
 716 +               HAILS("velocity_intr",isr_status);
 717 +               /* MJW - velocity_error is ALWAYS called; need to mask off some other flags */
 718 +               /* if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI))) */
 719 +               if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI | ISR_PTX0I | ISR_ISR0)))
 720                         velocity_error(vptr, isr_status);
 721                 if (isr_status & (ISR_PRXI | ISR_PPRXI))
 722                         max_count += velocity_rx_srv(vptr, isr_status);
 723 @@ -2276,6 +2426,7 @@
 724         int i;
 725         struct dev_mc_list *mclist;
 726
 727 +       HAIL("velocity_set_multi");
 728         if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
 729                 writel(0xffffffff, &regs->MARCAM[0]);
 730                 writel(0xffffffff, &regs->MARCAM[4]);
 731 @@ -2319,6 +2470,7 @@
 732  {
 733         struct velocity_info *vptr = netdev_priv(dev);
 734
 735 +       HAIL("net_device_stats");
 736         /* If the hardware is down, don't touch MII */
 737         if(!netif_running(dev))
 738                 return &vptr->stats;
 739 @@ -2363,6 +2515,7 @@
 740         struct velocity_info *vptr = netdev_priv(dev);
 741         int ret;
 742
 743 +       HAIL("velocity_ioctl");
 744         /* If we are asked for information and the device is power
 745            saving then we need to bring the device back up to talk to it */
 746
 747 @@ -2581,6 +2734,8 @@
 748  {
 749         u16 ww;
 750
 751 +       HAIL("velocity_mii_read");
 752 +       HAIL("velocity_mii_write");
 753         /*
 754          *      Disable MIICR_MAUTO, so that mii addr can be set normally
 755          */
 756 diff -Naur linux-2.6.24.orig/drivers/net/via-velocity.h linux-2.6.24/drivers/net/via-velocity.h
 757 --- linux-2.6.24.orig/drivers/net/via-velocity.h        2008-01-31 23:11:26.000000000 -0600
 758 +++ linux-2.6.24/drivers/net/via-velocity.h     2008-02-01 01:12:15.000000000 -0600
 759 @@ -196,64 +196,70 @@
 760   *     Receive descriptor
 761   */
 762
 763 -struct rdesc0 {
 764 -       u16 RSR;                /* Receive status */
 765 -       u16 len:14;             /* Received packet length */
 766 -       u16 reserved:1;
 767 -       u16 owner:1;            /* Who owns this buffer ? */
 768 -};
 769 -
 770 -struct rdesc1 {
 771 -       u16 PQTAG;
 772 -       u8 CSM;
 773 -       u8 IPKT;
 774 -};
 775 +//struct rdesc0 {
 776 +//     u16 RSR;                /* Receive status */
 777 +//     u16 len:14;             /* Received packet length */
 778 +//     u16 reserved:1;
 779 +//     u16 owner:1;            /* Who owns this buffer ? */
 780 +//};
 781 +
 782 +//struct rdesc1 {
 783 +//     u16 PQTAG;
 784 +//     u8 CSM;
 785 +//     u8 IPKT;
 786 +//};
 787
 788  struct rx_desc {
 789 -       struct rdesc0 rdesc0;
 790 -       struct rdesc1 rdesc1;
 791 +//     struct rdesc0 rdesc0;
 792 +//     struct rdesc1 rdesc1;
 793 +       u32 rdesc0;
 794 +       u32 rdesc1;
 795         u32 pa_low;             /* Low 32 bit PCI address */
 796 -       u16 pa_high;            /* Next 16 bit PCI address (48 total) */
 797 -       u16 len:15;             /* Frame size */
 798 -       u16 inten:1;            /* Enable interrupt */
 799 +//     u16 pa_high;            /* Next 16 bit PCI address (48 total) */
 800 +//     u16 len:15;             /* Frame size */
 801 +//     u16 inten:1;            /* Enable interrupt */
 802 +       u32 ltwo;
 803  } __attribute__ ((__packed__));
 804
 805  /*
 806   *     Transmit descriptor
 807   */
 808
 809 -struct tdesc0 {
 810 -       u16 TSR;                /* Transmit status register */
 811 -       u16 pktsize:14;         /* Size of frame */
 812 -       u16 reserved:1;
 813 -       u16 owner:1;            /* Who owns the buffer */
 814 -};
 815 -
 816 -struct pqinf {                 /* Priority queue info */
 817 -       u16 VID:12;
 818 -       u16 CFI:1;
 819 -       u16 priority:3;
 820 -} __attribute__ ((__packed__));
 821 -
 822 -struct tdesc1 {
 823 -       struct pqinf pqinf;
 824 -       u8 TCR;
 825 -       u8 TCPLS:2;
 826 -       u8 reserved:2;
 827 -       u8 CMDZ:4;
 828 -} __attribute__ ((__packed__));
 829 +//struct tdesc0 {
 830 +//     u16 TSR;                /* Transmit status register */
 831 +//     u16 pktsize:14;         /* Size of frame */
 832 +//     u16 reserved:1;
 833 +//     u16 owner:1;            /* Who owns the buffer */
 834 +//};
 835 +
 836 +//struct pqinf {                       /* Priority queue info */
 837 +//     u16 VID:12;
 838 +//     u16 CFI:1;
 839 +//     u16 priority:3;
 840 +//} __attribute__ ((__packed__));
 841 +
 842 +//struct tdesc1 {
 843 +//     struct pqinf pqinf;
 844 +//     u8 TCR;
 845 +//     u8 TCPLS:2;
 846 +//     u8 reserved:2;
 847 +//     u8 CMDZ:4;
 848 +//} __attribute__ ((__packed__));
 849
 850  struct td_buf {
 851         u32 pa_low;
 852 -       u16 pa_high;
 853 -       u16 bufsize:14;
 854 -       u16 reserved:1;
 855 -       u16 queue:1;
 856 +//     u16 pa_high;
 857 +//     u16 bufsize:14;
 858 +//     u16 reserved:1;
 859 +//     u16 queue:1;
 860 +       u32 ltwo;
 861  } __attribute__ ((__packed__));
 862
 863  struct tx_desc {
 864 -       struct tdesc0 tdesc0;
 865 -       struct tdesc1 tdesc1;
 866 +//     struct tdesc0 tdesc0;
 867 +//     struct tdesc1 tdesc1;
 868 +       u32 tdesc0;
 869 +       u32 tdesc1;
 870         struct td_buf td_buf[7];
 871  };
 872
 873 @@ -279,6 +285,16 @@
 874         OWNED_BY_NIC = 1
 875  };
 876
 877 +/* Constants added for the BE fixes */
 878 +#define BE_OWNED_BY_NIC    0x80000000UL
 879 +#define BE_INT_ENABLE      0x80000000UL
 880 +#define BE_QUEUE_ENABLE    0x80000000UL
 881 +#define BE_TCR_TIC         0x00800000UL
 882 +#define BE_TCR_VETAG       0x00200000UL
 883 +#define BE_TCR_TCPCK       0x00040000UL
 884 +#define BE_TCR_UDPCK       0x00080000UL
 885 +#define BE_TCR_IPCK        0x00100000UL
 886 +
 887
 888  /*
 889   *     MAC registers and macros.
 890 @@ -1512,6 +1528,7 @@
 891  };
 892
 893  struct velocity_opt {
 894 +       int velo_debug;                 /* debug flag */
 895         int numrx;                      /* Number of RX descriptors */
 896         int numtx;                      /* Number of TX descriptors */
 897         enum speed_opt spd_dpx;         /* Media link mode */