linux/drivers/net/ethernet/synopsys/dwc-xlgmac-common.c
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   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
  24MODULE_LICENSE("Dual BSD/GPL");
  25
  26static int debug = -1;
  27module_param(debug, int, 0644);
  28MODULE_PARM_DESC(debug, "DWC ethernet debug level (0=none,...,16=all)");
  29static const u32 default_msg_level = (NETIF_MSG_LINK | NETIF_MSG_IFDOWN |
  30                                      NETIF_MSG_IFUP);
  31
  32static unsigned char dev_addr[6] = {0, 0x55, 0x7b, 0xb5, 0x7d, 0xf7};
  33
  34static 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
  42static 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
  61static 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
  67static 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
 228int 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
 268err_free_netdev:
 269        free_netdev(netdev);
 270
 271        return ret;
 272}
 273
 274int 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
 284void 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
 311void 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
 332void 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 *buf = skb->data;
 337        unsigned char buffer[128];
 338        unsigned int i, j;
 339
 340        netdev_dbg(netdev, "\n************** SKB dump ****************\n");
 341
 342        netdev_dbg(netdev, "%s packet of %d bytes\n",
 343                   (tx_rx ? "TX" : "RX"), skb->len);
 344
 345        netdev_dbg(netdev, "Dst MAC addr: %pM\n", eth->h_dest);
 346        netdev_dbg(netdev, "Src MAC addr: %pM\n", eth->h_source);
 347        netdev_dbg(netdev, "Protocol: %#06hx\n", ntohs(eth->h_proto));
 348
 349        for (i = 0, j = 0; i < skb->len;) {
 350                j += snprintf(buffer + j, sizeof(buffer) - j, "%02hhx",
 351                              buf[i++]);
 352
 353                if ((i % 32) == 0) {
 354                        netdev_dbg(netdev, "  %#06x: %s\n", i - 32, buffer);
 355                        j = 0;
 356                } else if ((i % 16) == 0) {
 357                        buffer[j++] = ' ';
 358                        buffer[j++] = ' ';
 359                } else if ((i % 4) == 0) {
 360                        buffer[j++] = ' ';
 361                }
 362        }
 363        if (i % 32)
 364                netdev_dbg(netdev, "  %#06x: %s\n", i - (i % 32), buffer);
 365
 366        netdev_dbg(netdev, "\n************** SKB dump ****************\n");
 367}
 368
 369void xlgmac_get_all_hw_features(struct xlgmac_pdata *pdata)
 370{
 371        struct xlgmac_hw_features *hw_feat = &pdata->hw_feat;
 372        unsigned int mac_hfr0, mac_hfr1, mac_hfr2;
 373
 374        mac_hfr0 = readl(pdata->mac_regs + MAC_HWF0R);
 375        mac_hfr1 = readl(pdata->mac_regs + MAC_HWF1R);
 376        mac_hfr2 = readl(pdata->mac_regs + MAC_HWF2R);
 377
 378        memset(hw_feat, 0, sizeof(*hw_feat));
 379
 380        hw_feat->version = readl(pdata->mac_regs + MAC_VR);
 381
 382        /* Hardware feature register 0 */
 383        hw_feat->phyifsel    = XLGMAC_GET_REG_BITS(mac_hfr0,
 384                                                MAC_HWF0R_PHYIFSEL_POS,
 385                                                MAC_HWF0R_PHYIFSEL_LEN);
 386        hw_feat->vlhash      = XLGMAC_GET_REG_BITS(mac_hfr0,
 387                                                MAC_HWF0R_VLHASH_POS,
 388                                                MAC_HWF0R_VLHASH_LEN);
 389        hw_feat->sma         = XLGMAC_GET_REG_BITS(mac_hfr0,
 390                                                MAC_HWF0R_SMASEL_POS,
 391                                                MAC_HWF0R_SMASEL_LEN);
 392        hw_feat->rwk         = XLGMAC_GET_REG_BITS(mac_hfr0,
 393                                                MAC_HWF0R_RWKSEL_POS,
 394                                                MAC_HWF0R_RWKSEL_LEN);
 395        hw_feat->mgk         = XLGMAC_GET_REG_BITS(mac_hfr0,
 396                                                MAC_HWF0R_MGKSEL_POS,
 397                                                MAC_HWF0R_MGKSEL_LEN);
 398        hw_feat->mmc         = XLGMAC_GET_REG_BITS(mac_hfr0,
 399                                                MAC_HWF0R_MMCSEL_POS,
 400                                                MAC_HWF0R_MMCSEL_LEN);
 401        hw_feat->aoe         = XLGMAC_GET_REG_BITS(mac_hfr0,
 402                                                MAC_HWF0R_ARPOFFSEL_POS,
 403                                                MAC_HWF0R_ARPOFFSEL_LEN);
 404        hw_feat->ts          = XLGMAC_GET_REG_BITS(mac_hfr0,
 405                                                MAC_HWF0R_TSSEL_POS,
 406                                                MAC_HWF0R_TSSEL_LEN);
 407        hw_feat->eee         = XLGMAC_GET_REG_BITS(mac_hfr0,
 408                                                MAC_HWF0R_EEESEL_POS,
 409                                                MAC_HWF0R_EEESEL_LEN);
 410        hw_feat->tx_coe      = XLGMAC_GET_REG_BITS(mac_hfr0,
 411                                                MAC_HWF0R_TXCOESEL_POS,
 412                                                MAC_HWF0R_TXCOESEL_LEN);
 413        hw_feat->rx_coe      = XLGMAC_GET_REG_BITS(mac_hfr0,
 414                                                MAC_HWF0R_RXCOESEL_POS,
 415                                                MAC_HWF0R_RXCOESEL_LEN);
 416        hw_feat->addn_mac    = XLGMAC_GET_REG_BITS(mac_hfr0,
 417                                                MAC_HWF0R_ADDMACADRSEL_POS,
 418                                                MAC_HWF0R_ADDMACADRSEL_LEN);
 419        hw_feat->ts_src      = XLGMAC_GET_REG_BITS(mac_hfr0,
 420                                                MAC_HWF0R_TSSTSSEL_POS,
 421                                                MAC_HWF0R_TSSTSSEL_LEN);
 422        hw_feat->sa_vlan_ins = XLGMAC_GET_REG_BITS(mac_hfr0,
 423                                                MAC_HWF0R_SAVLANINS_POS,
 424                                                MAC_HWF0R_SAVLANINS_LEN);
 425
 426        /* Hardware feature register 1 */
 427        hw_feat->rx_fifo_size  = XLGMAC_GET_REG_BITS(mac_hfr1,
 428                                                MAC_HWF1R_RXFIFOSIZE_POS,
 429                                                MAC_HWF1R_RXFIFOSIZE_LEN);
 430        hw_feat->tx_fifo_size  = XLGMAC_GET_REG_BITS(mac_hfr1,
 431                                                MAC_HWF1R_TXFIFOSIZE_POS,
 432                                                MAC_HWF1R_TXFIFOSIZE_LEN);
 433        hw_feat->adv_ts_hi     = XLGMAC_GET_REG_BITS(mac_hfr1,
 434                                                MAC_HWF1R_ADVTHWORD_POS,
 435                                                MAC_HWF1R_ADVTHWORD_LEN);
 436        hw_feat->dma_width     = XLGMAC_GET_REG_BITS(mac_hfr1,
 437                                                MAC_HWF1R_ADDR64_POS,
 438                                                MAC_HWF1R_ADDR64_LEN);
 439        hw_feat->dcb           = XLGMAC_GET_REG_BITS(mac_hfr1,
 440                                                MAC_HWF1R_DCBEN_POS,
 441                                                MAC_HWF1R_DCBEN_LEN);
 442        hw_feat->sph           = XLGMAC_GET_REG_BITS(mac_hfr1,
 443                                                MAC_HWF1R_SPHEN_POS,
 444                                                MAC_HWF1R_SPHEN_LEN);
 445        hw_feat->tso           = XLGMAC_GET_REG_BITS(mac_hfr1,
 446                                                MAC_HWF1R_TSOEN_POS,
 447                                                MAC_HWF1R_TSOEN_LEN);
 448        hw_feat->dma_debug     = XLGMAC_GET_REG_BITS(mac_hfr1,
 449                                                MAC_HWF1R_DBGMEMA_POS,
 450                                                MAC_HWF1R_DBGMEMA_LEN);
 451        hw_feat->rss           = XLGMAC_GET_REG_BITS(mac_hfr1,
 452                                                MAC_HWF1R_RSSEN_POS,
 453                                                MAC_HWF1R_RSSEN_LEN);
 454        hw_feat->tc_cnt        = XLGMAC_GET_REG_BITS(mac_hfr1,
 455                                                MAC_HWF1R_NUMTC_POS,
 456                                                MAC_HWF1R_NUMTC_LEN);
 457        hw_feat->hash_table_size = XLGMAC_GET_REG_BITS(mac_hfr1,
 458                                                MAC_HWF1R_HASHTBLSZ_POS,
 459                                                MAC_HWF1R_HASHTBLSZ_LEN);
 460        hw_feat->l3l4_filter_num = XLGMAC_GET_REG_BITS(mac_hfr1,
 461                                                MAC_HWF1R_L3L4FNUM_POS,
 462                                                MAC_HWF1R_L3L4FNUM_LEN);
 463
 464        /* Hardware feature register 2 */
 465        hw_feat->rx_q_cnt     = XLGMAC_GET_REG_BITS(mac_hfr2,
 466                                                MAC_HWF2R_RXQCNT_POS,
 467                                                MAC_HWF2R_RXQCNT_LEN);
 468        hw_feat->tx_q_cnt     = XLGMAC_GET_REG_BITS(mac_hfr2,
 469                                                MAC_HWF2R_TXQCNT_POS,
 470                                                MAC_HWF2R_TXQCNT_LEN);
 471        hw_feat->rx_ch_cnt    = XLGMAC_GET_REG_BITS(mac_hfr2,
 472                                                MAC_HWF2R_RXCHCNT_POS,
 473                                                MAC_HWF2R_RXCHCNT_LEN);
 474        hw_feat->tx_ch_cnt    = XLGMAC_GET_REG_BITS(mac_hfr2,
 475                                                MAC_HWF2R_TXCHCNT_POS,
 476                                                MAC_HWF2R_TXCHCNT_LEN);
 477        hw_feat->pps_out_num  = XLGMAC_GET_REG_BITS(mac_hfr2,
 478                                                MAC_HWF2R_PPSOUTNUM_POS,
 479                                                MAC_HWF2R_PPSOUTNUM_LEN);
 480        hw_feat->aux_snap_num = XLGMAC_GET_REG_BITS(mac_hfr2,
 481                                                MAC_HWF2R_AUXSNAPNUM_POS,
 482                                                MAC_HWF2R_AUXSNAPNUM_LEN);
 483
 484        /* Translate the Hash Table size into actual number */
 485        switch (hw_feat->hash_table_size) {
 486        case 0:
 487                break;
 488        case 1:
 489                hw_feat->hash_table_size = 64;
 490                break;
 491        case 2:
 492                hw_feat->hash_table_size = 128;
 493                break;
 494        case 3:
 495                hw_feat->hash_table_size = 256;
 496                break;
 497        }
 498
 499        /* Translate the address width setting into actual number */
 500        switch (hw_feat->dma_width) {
 501        case 0:
 502                hw_feat->dma_width = 32;
 503                break;
 504        case 1:
 505                hw_feat->dma_width = 40;
 506                break;
 507        case 2:
 508                hw_feat->dma_width = 48;
 509                break;
 510        default:
 511                hw_feat->dma_width = 32;
 512        }
 513
 514        /* The Queue, Channel and TC counts are zero based so increment them
 515         * to get the actual number
 516         */
 517        hw_feat->rx_q_cnt++;
 518        hw_feat->tx_q_cnt++;
 519        hw_feat->rx_ch_cnt++;
 520        hw_feat->tx_ch_cnt++;
 521        hw_feat->tc_cnt++;
 522}
 523
 524void xlgmac_print_all_hw_features(struct xlgmac_pdata *pdata)
 525{
 526        char *str = NULL;
 527
 528        XLGMAC_PR("\n");
 529        XLGMAC_PR("=====================================================\n");
 530        XLGMAC_PR("\n");
 531        XLGMAC_PR("HW support following features\n");
 532        XLGMAC_PR("\n");
 533        /* HW Feature Register0 */
 534        XLGMAC_PR("VLAN Hash Filter Selected                   : %s\n",
 535                  pdata->hw_feat.vlhash ? "YES" : "NO");
 536        XLGMAC_PR("SMA (MDIO) Interface                        : %s\n",
 537                  pdata->hw_feat.sma ? "YES" : "NO");
 538        XLGMAC_PR("PMT Remote Wake-up Packet Enable            : %s\n",
 539                  pdata->hw_feat.rwk ? "YES" : "NO");
 540        XLGMAC_PR("PMT Magic Packet Enable                     : %s\n",
 541                  pdata->hw_feat.mgk ? "YES" : "NO");
 542        XLGMAC_PR("RMON/MMC Module Enable                      : %s\n",
 543                  pdata->hw_feat.mmc ? "YES" : "NO");
 544        XLGMAC_PR("ARP Offload Enabled                         : %s\n",
 545                  pdata->hw_feat.aoe ? "YES" : "NO");
 546        XLGMAC_PR("IEEE 1588-2008 Timestamp Enabled            : %s\n",
 547                  pdata->hw_feat.ts ? "YES" : "NO");
 548        XLGMAC_PR("Energy Efficient Ethernet Enabled           : %s\n",
 549                  pdata->hw_feat.eee ? "YES" : "NO");
 550        XLGMAC_PR("Transmit Checksum Offload Enabled           : %s\n",
 551                  pdata->hw_feat.tx_coe ? "YES" : "NO");
 552        XLGMAC_PR("Receive Checksum Offload Enabled            : %s\n",
 553                  pdata->hw_feat.rx_coe ? "YES" : "NO");
 554        XLGMAC_PR("Additional MAC Addresses 1-31 Selected      : %s\n",
 555                  pdata->hw_feat.addn_mac ? "YES" : "NO");
 556
 557        switch (pdata->hw_feat.ts_src) {
 558        case 0:
 559                str = "RESERVED";
 560                break;
 561        case 1:
 562                str = "INTERNAL";
 563                break;
 564        case 2:
 565                str = "EXTERNAL";
 566                break;
 567        case 3:
 568                str = "BOTH";
 569                break;
 570        }
 571        XLGMAC_PR("Timestamp System Time Source                : %s\n", str);
 572
 573        XLGMAC_PR("Source Address or VLAN Insertion Enable     : %s\n",
 574                  pdata->hw_feat.sa_vlan_ins ? "YES" : "NO");
 575
 576        /* HW Feature Register1 */
 577        switch (pdata->hw_feat.rx_fifo_size) {
 578        case 0:
 579                str = "128 bytes";
 580                break;
 581        case 1:
 582                str = "256 bytes";
 583                break;
 584        case 2:
 585                str = "512 bytes";
 586                break;
 587        case 3:
 588                str = "1 KBytes";
 589                break;
 590        case 4:
 591                str = "2 KBytes";
 592                break;
 593        case 5:
 594                str = "4 KBytes";
 595                break;
 596        case 6:
 597                str = "8 KBytes";
 598                break;
 599        case 7:
 600                str = "16 KBytes";
 601                break;
 602        case 8:
 603                str = "32 kBytes";
 604                break;
 605        case 9:
 606                str = "64 KBytes";
 607                break;
 608        case 10:
 609                str = "128 KBytes";
 610                break;
 611        case 11:
 612                str = "256 KBytes";
 613                break;
 614        default:
 615                str = "RESERVED";
 616        }
 617        XLGMAC_PR("MTL Receive FIFO Size                       : %s\n", str);
 618
 619        switch (pdata->hw_feat.tx_fifo_size) {
 620        case 0:
 621                str = "128 bytes";
 622                break;
 623        case 1:
 624                str = "256 bytes";
 625                break;
 626        case 2:
 627                str = "512 bytes";
 628                break;
 629        case 3:
 630                str = "1 KBytes";
 631                break;
 632        case 4:
 633                str = "2 KBytes";
 634                break;
 635        case 5:
 636                str = "4 KBytes";
 637                break;
 638        case 6:
 639                str = "8 KBytes";
 640                break;
 641        case 7:
 642                str = "16 KBytes";
 643                break;
 644        case 8:
 645                str = "32 kBytes";
 646                break;
 647        case 9:
 648                str = "64 KBytes";
 649                break;
 650        case 10:
 651                str = "128 KBytes";
 652                break;
 653        case 11:
 654                str = "256 KBytes";
 655                break;
 656        default:
 657                str = "RESERVED";
 658        }
 659        XLGMAC_PR("MTL Transmit FIFO Size                      : %s\n", str);
 660
 661        XLGMAC_PR("IEEE 1588 High Word Register Enable         : %s\n",
 662                  pdata->hw_feat.adv_ts_hi ? "YES" : "NO");
 663        XLGMAC_PR("Address width                               : %u\n",
 664                  pdata->hw_feat.dma_width);
 665        XLGMAC_PR("DCB Feature Enable                          : %s\n",
 666                  pdata->hw_feat.dcb ? "YES" : "NO");
 667        XLGMAC_PR("Split Header Feature Enable                 : %s\n",
 668                  pdata->hw_feat.sph ? "YES" : "NO");
 669        XLGMAC_PR("TCP Segmentation Offload Enable             : %s\n",
 670                  pdata->hw_feat.tso ? "YES" : "NO");
 671        XLGMAC_PR("DMA Debug Registers Enabled                 : %s\n",
 672                  pdata->hw_feat.dma_debug ? "YES" : "NO");
 673        XLGMAC_PR("RSS Feature Enabled                         : %s\n",
 674                  pdata->hw_feat.rss ? "YES" : "NO");
 675        XLGMAC_PR("Number of Traffic classes                   : %u\n",
 676                  (pdata->hw_feat.tc_cnt));
 677        XLGMAC_PR("Hash Table Size                             : %u\n",
 678                  pdata->hw_feat.hash_table_size);
 679        XLGMAC_PR("Total number of L3 or L4 Filters            : %u\n",
 680                  pdata->hw_feat.l3l4_filter_num);
 681
 682        /* HW Feature Register2 */
 683        XLGMAC_PR("Number of MTL Receive Queues                : %u\n",
 684                  pdata->hw_feat.rx_q_cnt);
 685        XLGMAC_PR("Number of MTL Transmit Queues               : %u\n",
 686                  pdata->hw_feat.tx_q_cnt);
 687        XLGMAC_PR("Number of DMA Receive Channels              : %u\n",
 688                  pdata->hw_feat.rx_ch_cnt);
 689        XLGMAC_PR("Number of DMA Transmit Channels             : %u\n",
 690                  pdata->hw_feat.tx_ch_cnt);
 691
 692        switch (pdata->hw_feat.pps_out_num) {
 693        case 0:
 694                str = "No PPS output";
 695                break;
 696        case 1:
 697                str = "1 PPS output";
 698                break;
 699        case 2:
 700                str = "2 PPS output";
 701                break;
 702        case 3:
 703                str = "3 PPS output";
 704                break;
 705        case 4:
 706                str = "4 PPS output";
 707                break;
 708        default:
 709                str = "RESERVED";
 710        }
 711        XLGMAC_PR("Number of PPS Outputs                       : %s\n", str);
 712
 713        switch (pdata->hw_feat.aux_snap_num) {
 714        case 0:
 715                str = "No auxiliary input";
 716                break;
 717        case 1:
 718                str = "1 auxiliary input";
 719                break;
 720        case 2:
 721                str = "2 auxiliary input";
 722                break;
 723        case 3:
 724                str = "3 auxiliary input";
 725                break;
 726        case 4:
 727                str = "4 auxiliary input";
 728                break;
 729        default:
 730                str = "RESERVED";
 731        }
 732        XLGMAC_PR("Number of Auxiliary Snapshot Inputs         : %s", str);
 733
 734        XLGMAC_PR("\n");
 735        XLGMAC_PR("=====================================================\n");
 736        XLGMAC_PR("\n");
 737}
 738