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