drivers/net/ethernet/synopsys/dwc-xlgmac-common.c

   1 /* Synopsys DesignWare Core Enterprise Ethernet (XLGMAC) Driver
   2  *
   3  * Copyright (c) 2017 Synopsys, Inc. (www.synopsys.com)
   4  *
   5  * This program is dual-licensed; you may select either version 2 of
   6  * the GNU General Public License ("GPL") or BSD license ("BSD").
   7  *
   8  * This Synopsys DWC XLGMAC software driver and associated documentation
   9  * (hereinafter the "Software") is an unsupported proprietary work of
  10  * Synopsys, Inc. unless otherwise expressly agreed to in writing between
  11  * Synopsys and you. The Software IS NOT an item of Licensed Software or a
  12  * Licensed Product under any End User Software License Agreement or
  13  * Agreement for Licensed Products with Synopsys or any supplement thereto.
  14  * Synopsys is a registered trademark of Synopsys, Inc. Other names included
  15  * in the SOFTWARE may be the trademarks of their respective owners.
  16  */
  17
  18 #include <linux/kernel.h>
  19 #include <linux/module.h>
  20
  21 #include "dwc-xlgmac.h"
  22 #include "dwc-xlgmac-reg.h"
  23
  24 MODULE_LICENSE("Dual BSD/GPL");
  25
  26 static int debug = -1;
  27 module_param(debug, int, 0644);
  28 MODULE_PARM_DESC(debug, "DWC ethernet debug level (0=none,...,16=all)");
  29 static const u32 default_msg_level = (NETIF_MSG_LINK | NETIF_MSG_IFDOWN |
  30                                       NETIF_MSG_IFUP);
  31
  32 static unsigned char dev_addr[6] = {0, 0x55, 0x7b, 0xb5, 0x7d, 0xf7};
  33
  34 static void xlgmac_read_mac_addr(struct xlgmac_pdata *pdata)
  35 {
  36         struct net_device *netdev = pdata->netdev;
  37
  38         /* Currently it uses a static mac address for test */
  39         memcpy(pdata->mac_addr, dev_addr, netdev->addr_len);
  40 }
  41
  42 static void xlgmac_default_config(struct xlgmac_pdata *pdata)
  43 {
  44         pdata->tx_osp_mode = DMA_OSP_ENABLE;
  45         pdata->tx_sf_mode = MTL_TSF_ENABLE;
  46         pdata->rx_sf_mode = MTL_RSF_DISABLE;
  47         pdata->pblx8 = DMA_PBL_X8_ENABLE;
  48         pdata->tx_pbl = DMA_PBL_32;
  49         pdata->rx_pbl = DMA_PBL_32;
  50         pdata->tx_threshold = MTL_TX_THRESHOLD_128;
  51         pdata->rx_threshold = MTL_RX_THRESHOLD_128;
  52         pdata->tx_pause = 1;
  53         pdata->rx_pause = 1;
  54         pdata->phy_speed = SPEED_25000;
  55         pdata->sysclk_rate = XLGMAC_SYSCLOCK;
  56
  57         strlcpy(pdata->drv_name, XLGMAC_DRV_NAME, sizeof(pdata->drv_name));
  58         strlcpy(pdata->drv_ver, XLGMAC_DRV_VERSION, sizeof(pdata->drv_ver));
  59 }
  60
  61 static void xlgmac_init_all_ops(struct xlgmac_pdata *pdata)
  62 {
  63         xlgmac_init_desc_ops(&pdata->desc_ops);
  64         xlgmac_init_hw_ops(&pdata->hw_ops);
  65 }
  66
  67 static int xlgmac_init(struct xlgmac_pdata *pdata)
  68 {
  69         struct xlgmac_hw_ops *hw_ops = &pdata->hw_ops;
  70         struct net_device *netdev = pdata->netdev;
  71         unsigned int i;
  72         int ret;
  73
  74         /* Set default configuration data */
  75         xlgmac_default_config(pdata);
  76
  77         /* Set irq, base_addr, MAC address, */
  78         netdev->irq = pdata->dev_irq;
  79         netdev->base_addr = (unsigned long)pdata->mac_regs;
  80         xlgmac_read_mac_addr(pdata);
  81         memcpy(netdev->dev_addr, pdata->mac_addr, netdev->addr_len);
  82
  83         /* Set all the function pointers */
  84         xlgmac_init_all_ops(pdata);
  85
  86         /* Issue software reset to device */
  87         hw_ops->exit(pdata);
  88
  89         /* Populate the hardware features */
  90         xlgmac_get_all_hw_features(pdata);
  91         xlgmac_print_all_hw_features(pdata);
  92
  93         /* TODO: Set the PHY mode to XLGMII */
  94
  95         /* Set the DMA mask */
  96         ret = dma_set_mask_and_coherent(pdata->dev,
  97                                         DMA_BIT_MASK(pdata->hw_feat.dma_width));
  98         if (ret) {
  99                 dev_err(pdata->dev, "dma_set_mask_and_coherent failed\n");
 100                 return ret;
 101         }
 102
 103         /* Channel and ring params initializtion
 104          *  pdata->channel_count;
 105          *  pdata->tx_ring_count;
 106          *  pdata->rx_ring_count;
 107          *  pdata->tx_desc_count;
 108          *  pdata->rx_desc_count;
 109          */
 110         BUILD_BUG_ON_NOT_POWER_OF_2(XLGMAC_TX_DESC_CNT);
 111         pdata->tx_desc_count = XLGMAC_TX_DESC_CNT;
 112         if (pdata->tx_desc_count & (pdata->tx_desc_count - 1)) {
 113                 dev_err(pdata->dev, "tx descriptor count (%d) is not valid\n",
 114                         pdata->tx_desc_count);
 115                 ret = -EINVAL;
 116                 return ret;
 117         }
 118         BUILD_BUG_ON_NOT_POWER_OF_2(XLGMAC_RX_DESC_CNT);
 119         pdata->rx_desc_count = XLGMAC_RX_DESC_CNT;
 120         if (pdata->rx_desc_count & (pdata->rx_desc_count - 1)) {
 121                 dev_err(pdata->dev, "rx descriptor count (%d) is not valid\n",
 122                         pdata->rx_desc_count);
 123                 ret = -EINVAL;
 124                 return ret;
 125         }
 126
 127         pdata->tx_ring_count = min_t(unsigned int, num_online_cpus(),
 128                                      pdata->hw_feat.tx_ch_cnt);
 129         pdata->tx_ring_count = min_t(unsigned int, pdata->tx_ring_count,
 130                                      pdata->hw_feat.tx_q_cnt);
 131         pdata->tx_q_count = pdata->tx_ring_count;
 132         ret = netif_set_real_num_tx_queues(netdev, pdata->tx_q_count);
 133         if (ret) {
 134                 dev_err(pdata->dev, "error setting real tx queue count\n");
 135                 return ret;
 136         }
 137
 138         pdata->rx_ring_count = min_t(unsigned int,
 139                                      netif_get_num_default_rss_queues(),
 140                                      pdata->hw_feat.rx_ch_cnt);
 141         pdata->rx_ring_count = min_t(unsigned int, pdata->rx_ring_count,
 142                                      pdata->hw_feat.rx_q_cnt);
 143         pdata->rx_q_count = pdata->rx_ring_count;
 144         ret = netif_set_real_num_rx_queues(netdev, pdata->rx_q_count);
 145         if (ret) {
 146                 dev_err(pdata->dev, "error setting real rx queue count\n");
 147                 return ret;
 148         }
 149
 150         pdata->channel_count =
 151                 max_t(unsigned int, pdata->tx_ring_count, pdata->rx_ring_count);
 152
 153         /* Initialize RSS hash key and lookup table */
 154         netdev_rss_key_fill(pdata->rss_key, sizeof(pdata->rss_key));
 155
 156         for (i = 0; i < XLGMAC_RSS_MAX_TABLE_SIZE; i++)
 157                 pdata->rss_table[i] = XLGMAC_SET_REG_BITS(
 158                                         pdata->rss_table[i],
 159                                         MAC_RSSDR_DMCH_POS,
 160                                         MAC_RSSDR_DMCH_LEN,
 161                                         i % pdata->rx_ring_count);
 162
 163         pdata->rss_options = XLGMAC_SET_REG_BITS(
 164                                 pdata->rss_options,
 165                                 MAC_RSSCR_IP2TE_POS,
 166                                 MAC_RSSCR_IP2TE_LEN, 1);
 167         pdata->rss_options = XLGMAC_SET_REG_BITS(
 168                                 pdata->rss_options,
 169                                 MAC_RSSCR_TCP4TE_POS,
 170                                 MAC_RSSCR_TCP4TE_LEN, 1);
 171         pdata->rss_options = XLGMAC_SET_REG_BITS(
 172                                 pdata->rss_options,
 173                                 MAC_RSSCR_UDP4TE_POS,
 174                                 MAC_RSSCR_UDP4TE_LEN, 1);
 175
 176         /* Set device operations */
 177         netdev->netdev_ops = xlgmac_get_netdev_ops();
 178         netdev->ethtool_ops = xlgmac_get_ethtool_ops();
 179
 180         /* Set device features */
 181         if (pdata->hw_feat.tso) {
 182                 netdev->hw_features = NETIF_F_TSO;
 183                 netdev->hw_features |= NETIF_F_TSO6;
 184                 netdev->hw_features |= NETIF_F_SG;
 185                 netdev->hw_features |= NETIF_F_IP_CSUM;
 186                 netdev->hw_features |= NETIF_F_IPV6_CSUM;
 187         } else if (pdata->hw_feat.tx_coe) {
 188                 netdev->hw_features = NETIF_F_IP_CSUM;
 189                 netdev->hw_features |= NETIF_F_IPV6_CSUM;
 190         }
 191
 192         if (pdata->hw_feat.rx_coe) {
 193                 netdev->hw_features |= NETIF_F_RXCSUM;
 194                 netdev->hw_features |= NETIF_F_GRO;
 195         }
 196
 197         if (pdata->hw_feat.rss)
 198                 netdev->hw_features |= NETIF_F_RXHASH;
 199
 200         netdev->vlan_features |= netdev->hw_features;
 201
 202         netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
 203         if (pdata->hw_feat.sa_vlan_ins)
 204                 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
 205         if (pdata->hw_feat.vlhash)
 206                 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
 207
 208         netdev->features |= netdev->hw_features;
 209         pdata->netdev_features = netdev->features;
 210
 211         netdev->priv_flags |= IFF_UNICAST_FLT;
 212
 213         /* Use default watchdog timeout */
 214         netdev->watchdog_timeo = 0;
 215
 216         /* Tx coalesce parameters initialization */
 217         pdata->tx_usecs = XLGMAC_INIT_DMA_TX_USECS;
 218         pdata->tx_frames = XLGMAC_INIT_DMA_TX_FRAMES;
 219
 220         /* Rx coalesce parameters initialization */
 221         pdata->rx_riwt = hw_ops->usec_to_riwt(pdata, XLGMAC_INIT_DMA_RX_USECS);
 222         pdata->rx_usecs = XLGMAC_INIT_DMA_RX_USECS;
 223         pdata->rx_frames = XLGMAC_INIT_DMA_RX_FRAMES;
 224
 225         return 0;
 226 }
 227
 228 int xlgmac_drv_probe(struct device *dev, struct xlgmac_resources *res)
 229 {
 230         struct xlgmac_pdata *pdata;
 231         struct net_device *netdev;
 232         int ret;
 233
 234         netdev = alloc_etherdev_mq(sizeof(struct xlgmac_pdata),
 235                                    XLGMAC_MAX_DMA_CHANNELS);
 236
 237         if (!netdev) {
 238                 dev_err(dev, "alloc_etherdev failed\n");
 239                 return -ENOMEM;
 240         }
 241
 242         SET_NETDEV_DEV(netdev, dev);
 243         dev_set_drvdata(dev, netdev);
 244         pdata = netdev_priv(netdev);
 245         pdata->dev = dev;
 246         pdata->netdev = netdev;
 247
 248         pdata->dev_irq = res->irq;
 249         pdata->mac_regs = res->addr;
 250
 251         mutex_init(&pdata->rss_mutex);
 252         pdata->msg_enable = netif_msg_init(debug, default_msg_level);
 253
 254         ret = xlgmac_init(pdata);
 255         if (ret) {
 256                 dev_err(dev, "xlgmac init failed\n");
 257                 goto err_free_netdev;
 258         }
 259
 260         ret = register_netdev(netdev);
 261         if (ret) {
 262                 dev_err(dev, "net device registration failed\n");
 263                 goto err_free_netdev;
 264         }
 265
 266         return 0;
 267
 268 err_free_netdev:
 269         free_netdev(netdev);
 270
 271         return ret;
 272 }
 273
 274 int xlgmac_drv_remove(struct device *dev)
 275 {
 276         struct net_device *netdev = dev_get_drvdata(dev);
 277
 278         unregister_netdev(netdev);
 279         free_netdev(netdev);
 280
 281         return 0;
 282 }
 283
 284 void xlgmac_dump_tx_desc(struct xlgmac_pdata *pdata,
 285                          struct xlgmac_ring *ring,
 286                          unsigned int idx,
 287                          unsigned int count,
 288                          unsigned int flag)
 289 {
 290         struct xlgmac_desc_data *desc_data;
 291         struct xlgmac_dma_desc *dma_desc;
 292
 293         while (count--) {
 294                 desc_data = XLGMAC_GET_DESC_DATA(ring, idx);
 295                 dma_desc = desc_data->dma_desc;
 296
 297                 netdev_dbg(pdata->netdev, "TX: dma_desc=%p, dma_desc_addr=%pad\n",
 298                            desc_data->dma_desc, &desc_data->dma_desc_addr);
 299                 netdev_dbg(pdata->netdev,
 300                            "TX_NORMAL_DESC[%d %s] = %08x:%08x:%08x:%08x\n", idx,
 301                            (flag == 1) ? "QUEUED FOR TX" : "TX BY DEVICE",
 302                            le32_to_cpu(dma_desc->desc0),
 303                            le32_to_cpu(dma_desc->desc1),
 304                            le32_to_cpu(dma_desc->desc2),
 305                            le32_to_cpu(dma_desc->desc3));
 306
 307                 idx++;
 308         }
 309 }
 310
 311 void xlgmac_dump_rx_desc(struct xlgmac_pdata *pdata,
 312                          struct xlgmac_ring *ring,
 313                          unsigned int idx)
 314 {
 315         struct xlgmac_desc_data *desc_data;
 316         struct xlgmac_dma_desc *dma_desc;
 317
 318         desc_data = XLGMAC_GET_DESC_DATA(ring, idx);
 319         dma_desc = desc_data->dma_desc;
 320
 321         netdev_dbg(pdata->netdev, "RX: dma_desc=%p, dma_desc_addr=%pad\n",
 322                    desc_data->dma_desc, &desc_data->dma_desc_addr);
 323         netdev_dbg(pdata->netdev,
 324                    "RX_NORMAL_DESC[%d RX BY DEVICE] = %08x:%08x:%08x:%08x\n",
 325                    idx,
 326                    le32_to_cpu(dma_desc->desc0),
 327                    le32_to_cpu(dma_desc->desc1),
 328                    le32_to_cpu(dma_desc->desc2),
 329                    le32_to_cpu(dma_desc->desc3));
 330 }
 331
 332 void xlgmac_print_pkt(struct net_device *netdev,
 333                       struct sk_buff *skb, bool tx_rx)
 334 {
 335         struct ethhdr *eth = (struct ethhdr *)skb->data;
 336         unsigned char buffer[128];
 337         unsigned int i;
 338
 339         netdev_dbg(netdev, "\n************** SKB dump ****************\n");
 340
 341         netdev_dbg(netdev, "%s packet of %d bytes\n",
 342                    (tx_rx ? "TX" : "RX"), skb->len);
 343
 344         netdev_dbg(netdev, "Dst MAC addr: %pM\n", eth->h_dest);
 345         netdev_dbg(netdev, "Src MAC addr: %pM\n", eth->h_source);
 346         netdev_dbg(netdev, "Protocol: %#06hx\n", ntohs(eth->h_proto));
 347
 348         for (i = 0; i < skb->len; i += 32) {
 349                 unsigned int len = min(skb->len - i, 32U);
 350
 351                 hex_dump_to_buffer(&skb->data[i], len, 32, 1,
 352                                    buffer, sizeof(buffer), false);
 353                 netdev_dbg(netdev, "  %#06x: %s\n", i, buffer);
 354         }
 355
 356         netdev_dbg(netdev, "\n************** SKB dump ****************\n");
 357 }
 358
 359 void xlgmac_get_all_hw_features(struct xlgmac_pdata *pdata)
 360 {
 361         struct xlgmac_hw_features *hw_feat = &pdata->hw_feat;
 362         unsigned int mac_hfr0, mac_hfr1, mac_hfr2;
 363
 364         mac_hfr0 = readl(pdata->mac_regs + MAC_HWF0R);
 365         mac_hfr1 = readl(pdata->mac_regs + MAC_HWF1R);
 366         mac_hfr2 = readl(pdata->mac_regs + MAC_HWF2R);
 367
 368         memset(hw_feat, 0, sizeof(*hw_feat));
 369
 370         hw_feat->version = readl(pdata->mac_regs + MAC_VR);
 371
 372         /* Hardware feature register 0 */
 373         hw_feat->phyifsel    = XLGMAC_GET_REG_BITS(mac_hfr0,
 374                                                 MAC_HWF0R_PHYIFSEL_POS,
 375                                                 MAC_HWF0R_PHYIFSEL_LEN);
 376         hw_feat->vlhash      = XLGMAC_GET_REG_BITS(mac_hfr0,
 377                                                 MAC_HWF0R_VLHASH_POS,
 378                                                 MAC_HWF0R_VLHASH_LEN);
 379         hw_feat->sma         = XLGMAC_GET_REG_BITS(mac_hfr0,
 380                                                 MAC_HWF0R_SMASEL_POS,
 381                                                 MAC_HWF0R_SMASEL_LEN);
 382         hw_feat->rwk         = XLGMAC_GET_REG_BITS(mac_hfr0,
 383                                                 MAC_HWF0R_RWKSEL_POS,
 384                                                 MAC_HWF0R_RWKSEL_LEN);
 385         hw_feat->mgk         = XLGMAC_GET_REG_BITS(mac_hfr0,
 386                                                 MAC_HWF0R_MGKSEL_POS,
 387                                                 MAC_HWF0R_MGKSEL_LEN);
 388         hw_feat->mmc         = XLGMAC_GET_REG_BITS(mac_hfr0,
 389                                                 MAC_HWF0R_MMCSEL_POS,
 390                                                 MAC_HWF0R_MMCSEL_LEN);
 391         hw_feat->aoe         = XLGMAC_GET_REG_BITS(mac_hfr0,
 392                                                 MAC_HWF0R_ARPOFFSEL_POS,
 393                                                 MAC_HWF0R_ARPOFFSEL_LEN);
 394         hw_feat->ts          = XLGMAC_GET_REG_BITS(mac_hfr0,
 395                                                 MAC_HWF0R_TSSEL_POS,
 396                                                 MAC_HWF0R_TSSEL_LEN);
 397         hw_feat->eee         = XLGMAC_GET_REG_BITS(mac_hfr0,
 398                                                 MAC_HWF0R_EEESEL_POS,
 399                                                 MAC_HWF0R_EEESEL_LEN);
 400         hw_feat->tx_coe      = XLGMAC_GET_REG_BITS(mac_hfr0,
 401                                                 MAC_HWF0R_TXCOESEL_POS,
 402                                                 MAC_HWF0R_TXCOESEL_LEN);
 403         hw_feat->rx_coe      = XLGMAC_GET_REG_BITS(mac_hfr0,
 404                                                 MAC_HWF0R_RXCOESEL_POS,
 405                                                 MAC_HWF0R_RXCOESEL_LEN);
 406         hw_feat->addn_mac    = XLGMAC_GET_REG_BITS(mac_hfr0,
 407                                                 MAC_HWF0R_ADDMACADRSEL_POS,
 408                                                 MAC_HWF0R_ADDMACADRSEL_LEN);
 409         hw_feat->ts_src      = XLGMAC_GET_REG_BITS(mac_hfr0,
 410                                                 MAC_HWF0R_TSSTSSEL_POS,
 411                                                 MAC_HWF0R_TSSTSSEL_LEN);
 412         hw_feat->sa_vlan_ins = XLGMAC_GET_REG_BITS(mac_hfr0,
 413                                                 MAC_HWF0R_SAVLANINS_POS,
 414                                                 MAC_HWF0R_SAVLANINS_LEN);
 415
 416         /* Hardware feature register 1 */
 417         hw_feat->rx_fifo_size  = XLGMAC_GET_REG_BITS(mac_hfr1,
 418                                                 MAC_HWF1R_RXFIFOSIZE_POS,
 419                                                 MAC_HWF1R_RXFIFOSIZE_LEN);
 420         hw_feat->tx_fifo_size  = XLGMAC_GET_REG_BITS(mac_hfr1,
 421                                                 MAC_HWF1R_TXFIFOSIZE_POS,
 422                                                 MAC_HWF1R_TXFIFOSIZE_LEN);
 423         hw_feat->adv_ts_hi     = XLGMAC_GET_REG_BITS(mac_hfr1,
 424                                                 MAC_HWF1R_ADVTHWORD_POS,
 425                                                 MAC_HWF1R_ADVTHWORD_LEN);
 426         hw_feat->dma_width     = XLGMAC_GET_REG_BITS(mac_hfr1,
 427                                                 MAC_HWF1R_ADDR64_POS,
 428                                                 MAC_HWF1R_ADDR64_LEN);
 429         hw_feat->dcb           = XLGMAC_GET_REG_BITS(mac_hfr1,
 430                                                 MAC_HWF1R_DCBEN_POS,
 431                                                 MAC_HWF1R_DCBEN_LEN);
 432         hw_feat->sph           = XLGMAC_GET_REG_BITS(mac_hfr1,
 433                                                 MAC_HWF1R_SPHEN_POS,
 434                                                 MAC_HWF1R_SPHEN_LEN);
 435         hw_feat->tso           = XLGMAC_GET_REG_BITS(mac_hfr1,
 436                                                 MAC_HWF1R_TSOEN_POS,
 437                                                 MAC_HWF1R_TSOEN_LEN);
 438         hw_feat->dma_debug     = XLGMAC_GET_REG_BITS(mac_hfr1,
 439                                                 MAC_HWF1R_DBGMEMA_POS,
 440                                                 MAC_HWF1R_DBGMEMA_LEN);
 441         hw_feat->rss           = XLGMAC_GET_REG_BITS(mac_hfr1,
 442                                                 MAC_HWF1R_RSSEN_POS,
 443                                                 MAC_HWF1R_RSSEN_LEN);
 444         hw_feat->tc_cnt        = XLGMAC_GET_REG_BITS(mac_hfr1,
 445                                                 MAC_HWF1R_NUMTC_POS,
 446                                                 MAC_HWF1R_NUMTC_LEN);
 447         hw_feat->hash_table_size = XLGMAC_GET_REG_BITS(mac_hfr1,
 448                                                 MAC_HWF1R_HASHTBLSZ_POS,
 449                                                 MAC_HWF1R_HASHTBLSZ_LEN);
 450         hw_feat->l3l4_filter_num = XLGMAC_GET_REG_BITS(mac_hfr1,
 451                                                 MAC_HWF1R_L3L4FNUM_POS,
 452                                                 MAC_HWF1R_L3L4FNUM_LEN);
 453
 454         /* Hardware feature register 2 */
 455         hw_feat->rx_q_cnt     = XLGMAC_GET_REG_BITS(mac_hfr2,
 456                                                 MAC_HWF2R_RXQCNT_POS,
 457                                                 MAC_HWF2R_RXQCNT_LEN);
 458         hw_feat->tx_q_cnt     = XLGMAC_GET_REG_BITS(mac_hfr2,
 459                                                 MAC_HWF2R_TXQCNT_POS,
 460                                                 MAC_HWF2R_TXQCNT_LEN);
 461         hw_feat->rx_ch_cnt    = XLGMAC_GET_REG_BITS(mac_hfr2,
 462                                                 MAC_HWF2R_RXCHCNT_POS,
 463                                                 MAC_HWF2R_RXCHCNT_LEN);
 464         hw_feat->tx_ch_cnt    = XLGMAC_GET_REG_BITS(mac_hfr2,
 465                                                 MAC_HWF2R_TXCHCNT_POS,
 466                                                 MAC_HWF2R_TXCHCNT_LEN);
 467         hw_feat->pps_out_num  = XLGMAC_GET_REG_BITS(mac_hfr2,
 468                                                 MAC_HWF2R_PPSOUTNUM_POS,
 469                                                 MAC_HWF2R_PPSOUTNUM_LEN);
 470         hw_feat->aux_snap_num = XLGMAC_GET_REG_BITS(mac_hfr2,
 471                                                 MAC_HWF2R_AUXSNAPNUM_POS,
 472                                                 MAC_HWF2R_AUXSNAPNUM_LEN);
 473
 474         /* Translate the Hash Table size into actual number */
 475         switch (hw_feat->hash_table_size) {
 476         case 0:
 477                 break;
 478         case 1:
 479                 hw_feat->hash_table_size = 64;
 480                 break;
 481         case 2:
 482                 hw_feat->hash_table_size = 128;
 483                 break;
 484         case 3:
 485                 hw_feat->hash_table_size = 256;
 486                 break;
 487         }
 488
 489         /* Translate the address width setting into actual number */
 490         switch (hw_feat->dma_width) {
 491         case 0:
 492                 hw_feat->dma_width = 32;
 493                 break;
 494         case 1:
 495                 hw_feat->dma_width = 40;
 496                 break;
 497         case 2:
 498                 hw_feat->dma_width = 48;
 499                 break;
 500         default:
 501                 hw_feat->dma_width = 32;
 502         }
 503
 504         /* The Queue, Channel and TC counts are zero based so increment them
 505          * to get the actual number
 506          */
 507         hw_feat->rx_q_cnt++;
 508         hw_feat->tx_q_cnt++;
 509         hw_feat->rx_ch_cnt++;
 510         hw_feat->tx_ch_cnt++;
 511         hw_feat->tc_cnt++;
 512 }
 513
 514 void xlgmac_print_all_hw_features(struct xlgmac_pdata *pdata)
 515 {
 516         char __maybe_unused *str = NULL;
 517
 518         XLGMAC_PR("\n");
 519         XLGMAC_PR("=====================================================\n");
 520         XLGMAC_PR("\n");
 521         XLGMAC_PR("HW support following features\n");
 522         XLGMAC_PR("\n");
 523         /* HW Feature Register0 */
 524         XLGMAC_PR("VLAN Hash Filter Selected                   : %s\n",
 525                   pdata->hw_feat.vlhash ? "YES" : "NO");
 526         XLGMAC_PR("SMA (MDIO) Interface                        : %s\n",
 527                   pdata->hw_feat.sma ? "YES" : "NO");
 528         XLGMAC_PR("PMT Remote Wake-up Packet Enable            : %s\n",
 529                   pdata->hw_feat.rwk ? "YES" : "NO");
 530         XLGMAC_PR("PMT Magic Packet Enable                     : %s\n",
 531                   pdata->hw_feat.mgk ? "YES" : "NO");
 532         XLGMAC_PR("RMON/MMC Module Enable                      : %s\n",
 533                   pdata->hw_feat.mmc ? "YES" : "NO");
 534         XLGMAC_PR("ARP Offload Enabled                         : %s\n",
 535                   pdata->hw_feat.aoe ? "YES" : "NO");
 536         XLGMAC_PR("IEEE 1588-2008 Timestamp Enabled            : %s\n",
 537                   pdata->hw_feat.ts ? "YES" : "NO");
 538         XLGMAC_PR("Energy Efficient Ethernet Enabled           : %s\n",
 539                   pdata->hw_feat.eee ? "YES" : "NO");
 540         XLGMAC_PR("Transmit Checksum Offload Enabled           : %s\n",
 541                   pdata->hw_feat.tx_coe ? "YES" : "NO");
 542         XLGMAC_PR("Receive Checksum Offload Enabled            : %s\n",
 543                   pdata->hw_feat.rx_coe ? "YES" : "NO");
 544         XLGMAC_PR("Additional MAC Addresses 1-31 Selected      : %s\n",
 545                   pdata->hw_feat.addn_mac ? "YES" : "NO");
 546
 547         switch (pdata->hw_feat.ts_src) {
 548         case 0:
 549                 str = "RESERVED";
 550                 break;
 551         case 1:
 552                 str = "INTERNAL";
 553                 break;
 554         case 2:
 555                 str = "EXTERNAL";
 556                 break;
 557         case 3:
 558                 str = "BOTH";
 559                 break;
 560         }
 561         XLGMAC_PR("Timestamp System Time Source                : %s\n", str);
 562
 563         XLGMAC_PR("Source Address or VLAN Insertion Enable     : %s\n",
 564                   pdata->hw_feat.sa_vlan_ins ? "YES" : "NO");
 565
 566         /* HW Feature Register1 */
 567         switch (pdata->hw_feat.rx_fifo_size) {
 568         case 0:
 569                 str = "128 bytes";
 570                 break;
 571         case 1:
 572                 str = "256 bytes";
 573                 break;
 574         case 2:
 575                 str = "512 bytes";
 576                 break;
 577         case 3:
 578                 str = "1 KBytes";
 579                 break;
 580         case 4:
 581                 str = "2 KBytes";
 582                 break;
 583         case 5:
 584                 str = "4 KBytes";
 585                 break;
 586         case 6:
 587                 str = "8 KBytes";
 588                 break;
 589         case 7:
 590                 str = "16 KBytes";
 591                 break;
 592         case 8:
 593                 str = "32 kBytes";
 594                 break;
 595         case 9:
 596                 str = "64 KBytes";
 597                 break;
 598         case 10:
 599                 str = "128 KBytes";
 600                 break;
 601         case 11:
 602                 str = "256 KBytes";
 603                 break;
 604         default:
 605                 str = "RESERVED";
 606         }
 607         XLGMAC_PR("MTL Receive FIFO Size                       : %s\n", str);
 608
 609         switch (pdata->hw_feat.tx_fifo_size) {
 610         case 0:
 611                 str = "128 bytes";
 612                 break;
 613         case 1:
 614                 str = "256 bytes";
 615                 break;
 616         case 2:
 617                 str = "512 bytes";
 618                 break;
 619         case 3:
 620                 str = "1 KBytes";
 621                 break;
 622         case 4:
 623                 str = "2 KBytes";
 624                 break;
 625         case 5:
 626                 str = "4 KBytes";
 627                 break;
 628         case 6:
 629                 str = "8 KBytes";
 630                 break;
 631         case 7:
 632                 str = "16 KBytes";
 633                 break;
 634         case 8:
 635                 str = "32 kBytes";
 636                 break;
 637         case 9:
 638                 str = "64 KBytes";
 639                 break;
 640         case 10:
 641                 str = "128 KBytes";
 642                 break;
 643         case 11:
 644                 str = "256 KBytes";
 645                 break;
 646         default:
 647                 str = "RESERVED";
 648         }
 649         XLGMAC_PR("MTL Transmit FIFO Size                      : %s\n", str);
 650
 651         XLGMAC_PR("IEEE 1588 High Word Register Enable         : %s\n",
 652                   pdata->hw_feat.adv_ts_hi ? "YES" : "NO");
 653         XLGMAC_PR("Address width                               : %u\n",
 654                   pdata->hw_feat.dma_width);
 655         XLGMAC_PR("DCB Feature Enable                          : %s\n",
 656                   pdata->hw_feat.dcb ? "YES" : "NO");
 657         XLGMAC_PR("Split Header Feature Enable                 : %s\n",
 658                   pdata->hw_feat.sph ? "YES" : "NO");
 659         XLGMAC_PR("TCP Segmentation Offload Enable             : %s\n",
 660                   pdata->hw_feat.tso ? "YES" : "NO");
 661         XLGMAC_PR("DMA Debug Registers Enabled                 : %s\n",
 662                   pdata->hw_feat.dma_debug ? "YES" : "NO");
 663         XLGMAC_PR("RSS Feature Enabled                         : %s\n",
 664                   pdata->hw_feat.rss ? "YES" : "NO");
 665         XLGMAC_PR("Number of Traffic classes                   : %u\n",
 666                   (pdata->hw_feat.tc_cnt));
 667         XLGMAC_PR("Hash Table Size                             : %u\n",
 668                   pdata->hw_feat.hash_table_size);
 669         XLGMAC_PR("Total number of L3 or L4 Filters            : %u\n",
 670                   pdata->hw_feat.l3l4_filter_num);
 671
 672         /* HW Feature Register2 */
 673         XLGMAC_PR("Number of MTL Receive Queues                : %u\n",
 674                   pdata->hw_feat.rx_q_cnt);
 675         XLGMAC_PR("Number of MTL Transmit Queues               : %u\n",
 676                   pdata->hw_feat.tx_q_cnt);
 677         XLGMAC_PR("Number of DMA Receive Channels              : %u\n",
 678                   pdata->hw_feat.rx_ch_cnt);
 679         XLGMAC_PR("Number of DMA Transmit Channels             : %u\n",
 680                   pdata->hw_feat.tx_ch_cnt);
 681
 682         switch (pdata->hw_feat.pps_out_num) {
 683         case 0:
 684                 str = "No PPS output";
 685                 break;
 686         case 1:
 687                 str = "1 PPS output";
 688                 break;
 689         case 2:
 690                 str = "2 PPS output";
 691                 break;
 692         case 3:
 693                 str = "3 PPS output";
 694                 break;
 695         case 4:
 696                 str = "4 PPS output";
 697                 break;
 698         default:
 699                 str = "RESERVED";
 700         }
 701         XLGMAC_PR("Number of PPS Outputs                       : %s\n", str);
 702
 703         switch (pdata->hw_feat.aux_snap_num) {
 704         case 0:
 705                 str = "No auxiliary input";
 706                 break;
 707         case 1:
 708                 str = "1 auxiliary input";
 709                 break;
 710         case 2:
 711                 str = "2 auxiliary input";
 712                 break;
 713         case 3:
 714                 str = "3 auxiliary input";
 715                 break;
 716         case 4:
 717                 str = "4 auxiliary input";
 718                 break;
 719         default:
 720                 str = "RESERVED";
 721         }
 722         XLGMAC_PR("Number of Auxiliary Snapshot Inputs         : %s", str);
 723
 724         XLGMAC_PR("\n");
 725         XLGMAC_PR("=====================================================\n");
 726         XLGMAC_PR("\n");
 727 }