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ubuntu-linux-kernel/drivers/net/ethernet/synopsys/dwc-xlgmac-common.c

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/* Synopsys DesignWare Core Enterprise Ethernet (XLGMAC) Driver
*
* Copyright (c) 2017 Synopsys, Inc. (www.synopsys.com)
*
* This program is dual-licensed; you may select either version 2 of
* the GNU General Public License ("GPL") or BSD license ("BSD").
*
* This Synopsys DWC XLGMAC software driver and associated documentation
* (hereinafter the "Software") is an unsupported proprietary work of
* Synopsys, Inc. unless otherwise expressly agreed to in writing between
* Synopsys and you. The Software IS NOT an item of Licensed Software or a
* Licensed Product under any End User Software License Agreement or
* Agreement for Licensed Products with Synopsys or any supplement thereto.
* Synopsys is a registered trademark of Synopsys, Inc. Other names included
* in the SOFTWARE may be the trademarks of their respective owners.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include "dwc-xlgmac.h"
#include "dwc-xlgmac-reg.h"
MODULE_LICENSE("Dual BSD/GPL");
static int debug = -1;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "DWC ethernet debug level (0=none,...,16=all)");
static const u32 default_msg_level = (NETIF_MSG_LINK | NETIF_MSG_IFDOWN |
NETIF_MSG_IFUP);
static unsigned char dev_addr[6] = {0, 0x55, 0x7b, 0xb5, 0x7d, 0xf7};
static void xlgmac_read_mac_addr(struct xlgmac_pdata *pdata)
{
struct net_device *netdev = pdata->netdev;
/* Currently it uses a static mac address for test */
memcpy(pdata->mac_addr, dev_addr, netdev->addr_len);
}
static void xlgmac_default_config(struct xlgmac_pdata *pdata)
{
pdata->tx_osp_mode = DMA_OSP_ENABLE;
pdata->tx_sf_mode = MTL_TSF_ENABLE;
pdata->rx_sf_mode = MTL_RSF_DISABLE;
pdata->pblx8 = DMA_PBL_X8_ENABLE;
pdata->tx_pbl = DMA_PBL_32;
pdata->rx_pbl = DMA_PBL_32;
pdata->tx_threshold = MTL_TX_THRESHOLD_128;
pdata->rx_threshold = MTL_RX_THRESHOLD_128;
pdata->tx_pause = 1;
pdata->rx_pause = 1;
pdata->phy_speed = SPEED_25000;
pdata->sysclk_rate = XLGMAC_SYSCLOCK;
strlcpy(pdata->drv_name, XLGMAC_DRV_NAME, sizeof(pdata->drv_name));
strlcpy(pdata->drv_ver, XLGMAC_DRV_VERSION, sizeof(pdata->drv_ver));
}
static void xlgmac_init_all_ops(struct xlgmac_pdata *pdata)
{
xlgmac_init_desc_ops(&pdata->desc_ops);
xlgmac_init_hw_ops(&pdata->hw_ops);
}
static int xlgmac_init(struct xlgmac_pdata *pdata)
{
struct xlgmac_hw_ops *hw_ops = &pdata->hw_ops;
struct net_device *netdev = pdata->netdev;
unsigned int i;
int ret;
/* Set default configuration data */
xlgmac_default_config(pdata);
/* Set irq, base_addr, MAC address, */
netdev->irq = pdata->dev_irq;
netdev->base_addr = (unsigned long)pdata->mac_regs;
xlgmac_read_mac_addr(pdata);
memcpy(netdev->dev_addr, pdata->mac_addr, netdev->addr_len);
/* Set all the function pointers */
xlgmac_init_all_ops(pdata);
/* Issue software reset to device */
hw_ops->exit(pdata);
/* Populate the hardware features */
xlgmac_get_all_hw_features(pdata);
xlgmac_print_all_hw_features(pdata);
/* TODO: Set the PHY mode to XLGMII */
/* Set the DMA mask */
ret = dma_set_mask_and_coherent(pdata->dev,
DMA_BIT_MASK(pdata->hw_feat.dma_width));
if (ret) {
dev_err(pdata->dev, "dma_set_mask_and_coherent failed\n");
return ret;
}
/* Channel and ring params initializtion
* pdata->channel_count;
* pdata->tx_ring_count;
* pdata->rx_ring_count;
* pdata->tx_desc_count;
* pdata->rx_desc_count;
*/
BUILD_BUG_ON_NOT_POWER_OF_2(XLGMAC_TX_DESC_CNT);
pdata->tx_desc_count = XLGMAC_TX_DESC_CNT;
if (pdata->tx_desc_count & (pdata->tx_desc_count - 1)) {
dev_err(pdata->dev, "tx descriptor count (%d) is not valid\n",
pdata->tx_desc_count);
ret = -EINVAL;
return ret;
}
BUILD_BUG_ON_NOT_POWER_OF_2(XLGMAC_RX_DESC_CNT);
pdata->rx_desc_count = XLGMAC_RX_DESC_CNT;
if (pdata->rx_desc_count & (pdata->rx_desc_count - 1)) {
dev_err(pdata->dev, "rx descriptor count (%d) is not valid\n",
pdata->rx_desc_count);
ret = -EINVAL;
return ret;
}
pdata->tx_ring_count = min_t(unsigned int, num_online_cpus(),
pdata->hw_feat.tx_ch_cnt);
pdata->tx_ring_count = min_t(unsigned int, pdata->tx_ring_count,
pdata->hw_feat.tx_q_cnt);
pdata->tx_q_count = pdata->tx_ring_count;
ret = netif_set_real_num_tx_queues(netdev, pdata->tx_q_count);
if (ret) {
dev_err(pdata->dev, "error setting real tx queue count\n");
return ret;
}
pdata->rx_ring_count = min_t(unsigned int,
netif_get_num_default_rss_queues(),
pdata->hw_feat.rx_ch_cnt);
pdata->rx_ring_count = min_t(unsigned int, pdata->rx_ring_count,
pdata->hw_feat.rx_q_cnt);
pdata->rx_q_count = pdata->rx_ring_count;
ret = netif_set_real_num_rx_queues(netdev, pdata->rx_q_count);
if (ret) {
dev_err(pdata->dev, "error setting real rx queue count\n");
return ret;
}
pdata->channel_count =
max_t(unsigned int, pdata->tx_ring_count, pdata->rx_ring_count);
/* Initialize RSS hash key and lookup table */
netdev_rss_key_fill(pdata->rss_key, sizeof(pdata->rss_key));
for (i = 0; i < XLGMAC_RSS_MAX_TABLE_SIZE; i++)
pdata->rss_table[i] = XLGMAC_SET_REG_BITS(
pdata->rss_table[i],
MAC_RSSDR_DMCH_POS,
MAC_RSSDR_DMCH_LEN,
i % pdata->rx_ring_count);
pdata->rss_options = XLGMAC_SET_REG_BITS(
pdata->rss_options,
MAC_RSSCR_IP2TE_POS,
MAC_RSSCR_IP2TE_LEN, 1);
pdata->rss_options = XLGMAC_SET_REG_BITS(
pdata->rss_options,
MAC_RSSCR_TCP4TE_POS,
MAC_RSSCR_TCP4TE_LEN, 1);
pdata->rss_options = XLGMAC_SET_REG_BITS(
pdata->rss_options,
MAC_RSSCR_UDP4TE_POS,
MAC_RSSCR_UDP4TE_LEN, 1);
/* Set device operations */
netdev->netdev_ops = xlgmac_get_netdev_ops();
netdev->ethtool_ops = xlgmac_get_ethtool_ops();
/* Set device features */
if (pdata->hw_feat.tso) {
netdev->hw_features = NETIF_F_TSO;
netdev->hw_features |= NETIF_F_TSO6;
netdev->hw_features |= NETIF_F_SG;
netdev->hw_features |= NETIF_F_IP_CSUM;
netdev->hw_features |= NETIF_F_IPV6_CSUM;
} else if (pdata->hw_feat.tx_coe) {
netdev->hw_features = NETIF_F_IP_CSUM;
netdev->hw_features |= NETIF_F_IPV6_CSUM;
}
if (pdata->hw_feat.rx_coe) {
netdev->hw_features |= NETIF_F_RXCSUM;
netdev->hw_features |= NETIF_F_GRO;
}
if (pdata->hw_feat.rss)
netdev->hw_features |= NETIF_F_RXHASH;
netdev->vlan_features |= netdev->hw_features;
netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
if (pdata->hw_feat.sa_vlan_ins)
netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
if (pdata->hw_feat.vlhash)
netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
netdev->features |= netdev->hw_features;
pdata->netdev_features = netdev->features;
netdev->priv_flags |= IFF_UNICAST_FLT;
/* Use default watchdog timeout */
netdev->watchdog_timeo = 0;
/* Tx coalesce parameters initialization */
pdata->tx_usecs = XLGMAC_INIT_DMA_TX_USECS;
pdata->tx_frames = XLGMAC_INIT_DMA_TX_FRAMES;
/* Rx coalesce parameters initialization */
pdata->rx_riwt = hw_ops->usec_to_riwt(pdata, XLGMAC_INIT_DMA_RX_USECS);
pdata->rx_usecs = XLGMAC_INIT_DMA_RX_USECS;
pdata->rx_frames = XLGMAC_INIT_DMA_RX_FRAMES;
return 0;
}
int xlgmac_drv_probe(struct device *dev, struct xlgmac_resources *res)
{
struct xlgmac_pdata *pdata;
struct net_device *netdev;
int ret;
netdev = alloc_etherdev_mq(sizeof(struct xlgmac_pdata),
XLGMAC_MAX_DMA_CHANNELS);
if (!netdev) {
dev_err(dev, "alloc_etherdev failed\n");
return -ENOMEM;
}
SET_NETDEV_DEV(netdev, dev);
dev_set_drvdata(dev, netdev);
pdata = netdev_priv(netdev);
pdata->dev = dev;
pdata->netdev = netdev;
pdata->dev_irq = res->irq;
pdata->mac_regs = res->addr;
mutex_init(&pdata->rss_mutex);
pdata->msg_enable = netif_msg_init(debug, default_msg_level);
ret = xlgmac_init(pdata);
if (ret) {
dev_err(dev, "xlgmac init failed\n");
goto err_free_netdev;
}
ret = register_netdev(netdev);
if (ret) {
dev_err(dev, "net device registration failed\n");
goto err_free_netdev;
}
return 0;
err_free_netdev:
free_netdev(netdev);
return ret;
}
int xlgmac_drv_remove(struct device *dev)
{
struct net_device *netdev = dev_get_drvdata(dev);
unregister_netdev(netdev);
free_netdev(netdev);
return 0;
}
void xlgmac_dump_tx_desc(struct xlgmac_pdata *pdata,
struct xlgmac_ring *ring,
unsigned int idx,
unsigned int count,
unsigned int flag)
{
struct xlgmac_desc_data *desc_data;
struct xlgmac_dma_desc *dma_desc;
while (count--) {
desc_data = XLGMAC_GET_DESC_DATA(ring, idx);
dma_desc = desc_data->dma_desc;
netdev_dbg(pdata->netdev, "TX: dma_desc=%p, dma_desc_addr=%pad\n",
desc_data->dma_desc, &desc_data->dma_desc_addr);
netdev_dbg(pdata->netdev,
"TX_NORMAL_DESC[%d %s] = %08x:%08x:%08x:%08x\n", idx,
(flag == 1) ? "QUEUED FOR TX" : "TX BY DEVICE",
le32_to_cpu(dma_desc->desc0),
le32_to_cpu(dma_desc->desc1),
le32_to_cpu(dma_desc->desc2),
le32_to_cpu(dma_desc->desc3));
idx++;
}
}
void xlgmac_dump_rx_desc(struct xlgmac_pdata *pdata,
struct xlgmac_ring *ring,
unsigned int idx)
{
struct xlgmac_desc_data *desc_data;
struct xlgmac_dma_desc *dma_desc;
desc_data = XLGMAC_GET_DESC_DATA(ring, idx);
dma_desc = desc_data->dma_desc;
netdev_dbg(pdata->netdev, "RX: dma_desc=%p, dma_desc_addr=%pad\n",
desc_data->dma_desc, &desc_data->dma_desc_addr);
netdev_dbg(pdata->netdev,
"RX_NORMAL_DESC[%d RX BY DEVICE] = %08x:%08x:%08x:%08x\n",
idx,
le32_to_cpu(dma_desc->desc0),
le32_to_cpu(dma_desc->desc1),
le32_to_cpu(dma_desc->desc2),
le32_to_cpu(dma_desc->desc3));
}
void xlgmac_print_pkt(struct net_device *netdev,
struct sk_buff *skb, bool tx_rx)
{
struct ethhdr *eth = (struct ethhdr *)skb->data;
unsigned char *buf = skb->data;
unsigned char buffer[128];
unsigned int i, j;
netdev_dbg(netdev, "\n************** SKB dump ****************\n");
netdev_dbg(netdev, "%s packet of %d bytes\n",
(tx_rx ? "TX" : "RX"), skb->len);
netdev_dbg(netdev, "Dst MAC addr: %pM\n", eth->h_dest);
netdev_dbg(netdev, "Src MAC addr: %pM\n", eth->h_source);
netdev_dbg(netdev, "Protocol: %#06hx\n", ntohs(eth->h_proto));
for (i = 0, j = 0; i < skb->len;) {
j += snprintf(buffer + j, sizeof(buffer) - j, "%02hhx",
buf[i++]);
if ((i % 32) == 0) {
netdev_dbg(netdev, " %#06x: %s\n", i - 32, buffer);
j = 0;
} else if ((i % 16) == 0) {
buffer[j++] = ' ';
buffer[j++] = ' ';
} else if ((i % 4) == 0) {
buffer[j++] = ' ';
}
}
if (i % 32)
netdev_dbg(netdev, " %#06x: %s\n", i - (i % 32), buffer);
netdev_dbg(netdev, "\n************** SKB dump ****************\n");
}
void xlgmac_get_all_hw_features(struct xlgmac_pdata *pdata)
{
struct xlgmac_hw_features *hw_feat = &pdata->hw_feat;
unsigned int mac_hfr0, mac_hfr1, mac_hfr2;
mac_hfr0 = readl(pdata->mac_regs + MAC_HWF0R);
mac_hfr1 = readl(pdata->mac_regs + MAC_HWF1R);
mac_hfr2 = readl(pdata->mac_regs + MAC_HWF2R);
memset(hw_feat, 0, sizeof(*hw_feat));
hw_feat->version = readl(pdata->mac_regs + MAC_VR);
/* Hardware feature register 0 */
hw_feat->phyifsel = XLGMAC_GET_REG_BITS(mac_hfr0,
MAC_HWF0R_PHYIFSEL_POS,
MAC_HWF0R_PHYIFSEL_LEN);
hw_feat->vlhash = XLGMAC_GET_REG_BITS(mac_hfr0,
MAC_HWF0R_VLHASH_POS,
MAC_HWF0R_VLHASH_LEN);
hw_feat->sma = XLGMAC_GET_REG_BITS(mac_hfr0,
MAC_HWF0R_SMASEL_POS,
MAC_HWF0R_SMASEL_LEN);
hw_feat->rwk = XLGMAC_GET_REG_BITS(mac_hfr0,
MAC_HWF0R_RWKSEL_POS,
MAC_HWF0R_RWKSEL_LEN);
hw_feat->mgk = XLGMAC_GET_REG_BITS(mac_hfr0,
MAC_HWF0R_MGKSEL_POS,
MAC_HWF0R_MGKSEL_LEN);
hw_feat->mmc = XLGMAC_GET_REG_BITS(mac_hfr0,
MAC_HWF0R_MMCSEL_POS,
MAC_HWF0R_MMCSEL_LEN);
hw_feat->aoe = XLGMAC_GET_REG_BITS(mac_hfr0,
MAC_HWF0R_ARPOFFSEL_POS,
MAC_HWF0R_ARPOFFSEL_LEN);
hw_feat->ts = XLGMAC_GET_REG_BITS(mac_hfr0,
MAC_HWF0R_TSSEL_POS,
MAC_HWF0R_TSSEL_LEN);
hw_feat->eee = XLGMAC_GET_REG_BITS(mac_hfr0,
MAC_HWF0R_EEESEL_POS,
MAC_HWF0R_EEESEL_LEN);
hw_feat->tx_coe = XLGMAC_GET_REG_BITS(mac_hfr0,
MAC_HWF0R_TXCOESEL_POS,
MAC_HWF0R_TXCOESEL_LEN);
hw_feat->rx_coe = XLGMAC_GET_REG_BITS(mac_hfr0,
MAC_HWF0R_RXCOESEL_POS,
MAC_HWF0R_RXCOESEL_LEN);
hw_feat->addn_mac = XLGMAC_GET_REG_BITS(mac_hfr0,
MAC_HWF0R_ADDMACADRSEL_POS,
MAC_HWF0R_ADDMACADRSEL_LEN);
hw_feat->ts_src = XLGMAC_GET_REG_BITS(mac_hfr0,
MAC_HWF0R_TSSTSSEL_POS,
MAC_HWF0R_TSSTSSEL_LEN);
hw_feat->sa_vlan_ins = XLGMAC_GET_REG_BITS(mac_hfr0,
MAC_HWF0R_SAVLANINS_POS,
MAC_HWF0R_SAVLANINS_LEN);
/* Hardware feature register 1 */
hw_feat->rx_fifo_size = XLGMAC_GET_REG_BITS(mac_hfr1,
MAC_HWF1R_RXFIFOSIZE_POS,
MAC_HWF1R_RXFIFOSIZE_LEN);
hw_feat->tx_fifo_size = XLGMAC_GET_REG_BITS(mac_hfr1,
MAC_HWF1R_TXFIFOSIZE_POS,
MAC_HWF1R_TXFIFOSIZE_LEN);
hw_feat->adv_ts_hi = XLGMAC_GET_REG_BITS(mac_hfr1,
MAC_HWF1R_ADVTHWORD_POS,
MAC_HWF1R_ADVTHWORD_LEN);
hw_feat->dma_width = XLGMAC_GET_REG_BITS(mac_hfr1,
MAC_HWF1R_ADDR64_POS,
MAC_HWF1R_ADDR64_LEN);
hw_feat->dcb = XLGMAC_GET_REG_BITS(mac_hfr1,
MAC_HWF1R_DCBEN_POS,
MAC_HWF1R_DCBEN_LEN);
hw_feat->sph = XLGMAC_GET_REG_BITS(mac_hfr1,
MAC_HWF1R_SPHEN_POS,
MAC_HWF1R_SPHEN_LEN);
hw_feat->tso = XLGMAC_GET_REG_BITS(mac_hfr1,
MAC_HWF1R_TSOEN_POS,
MAC_HWF1R_TSOEN_LEN);
hw_feat->dma_debug = XLGMAC_GET_REG_BITS(mac_hfr1,
MAC_HWF1R_DBGMEMA_POS,
MAC_HWF1R_DBGMEMA_LEN);
hw_feat->rss = XLGMAC_GET_REG_BITS(mac_hfr1,
MAC_HWF1R_RSSEN_POS,
MAC_HWF1R_RSSEN_LEN);
hw_feat->tc_cnt = XLGMAC_GET_REG_BITS(mac_hfr1,
MAC_HWF1R_NUMTC_POS,
MAC_HWF1R_NUMTC_LEN);
hw_feat->hash_table_size = XLGMAC_GET_REG_BITS(mac_hfr1,
MAC_HWF1R_HASHTBLSZ_POS,
MAC_HWF1R_HASHTBLSZ_LEN);
hw_feat->l3l4_filter_num = XLGMAC_GET_REG_BITS(mac_hfr1,
MAC_HWF1R_L3L4FNUM_POS,
MAC_HWF1R_L3L4FNUM_LEN);
/* Hardware feature register 2 */
hw_feat->rx_q_cnt = XLGMAC_GET_REG_BITS(mac_hfr2,
MAC_HWF2R_RXQCNT_POS,
MAC_HWF2R_RXQCNT_LEN);
hw_feat->tx_q_cnt = XLGMAC_GET_REG_BITS(mac_hfr2,
MAC_HWF2R_TXQCNT_POS,
MAC_HWF2R_TXQCNT_LEN);
hw_feat->rx_ch_cnt = XLGMAC_GET_REG_BITS(mac_hfr2,
MAC_HWF2R_RXCHCNT_POS,
MAC_HWF2R_RXCHCNT_LEN);
hw_feat->tx_ch_cnt = XLGMAC_GET_REG_BITS(mac_hfr2,
MAC_HWF2R_TXCHCNT_POS,
MAC_HWF2R_TXCHCNT_LEN);
hw_feat->pps_out_num = XLGMAC_GET_REG_BITS(mac_hfr2,
MAC_HWF2R_PPSOUTNUM_POS,
MAC_HWF2R_PPSOUTNUM_LEN);
hw_feat->aux_snap_num = XLGMAC_GET_REG_BITS(mac_hfr2,
MAC_HWF2R_AUXSNAPNUM_POS,
MAC_HWF2R_AUXSNAPNUM_LEN);
/* Translate the Hash Table size into actual number */
switch (hw_feat->hash_table_size) {
case 0:
break;
case 1:
hw_feat->hash_table_size = 64;
break;
case 2:
hw_feat->hash_table_size = 128;
break;
case 3:
hw_feat->hash_table_size = 256;
break;
}
/* Translate the address width setting into actual number */
switch (hw_feat->dma_width) {
case 0:
hw_feat->dma_width = 32;
break;
case 1:
hw_feat->dma_width = 40;
break;
case 2:
hw_feat->dma_width = 48;
break;
default:
hw_feat->dma_width = 32;
}
/* The Queue, Channel and TC counts are zero based so increment them
* to get the actual number
*/
hw_feat->rx_q_cnt++;
hw_feat->tx_q_cnt++;
hw_feat->rx_ch_cnt++;
hw_feat->tx_ch_cnt++;
hw_feat->tc_cnt++;
}
void xlgmac_print_all_hw_features(struct xlgmac_pdata *pdata)
{
char *str = NULL;
XLGMAC_PR("\n");
XLGMAC_PR("=====================================================\n");
XLGMAC_PR("\n");
XLGMAC_PR("HW support following features\n");
XLGMAC_PR("\n");
/* HW Feature Register0 */
XLGMAC_PR("VLAN Hash Filter Selected : %s\n",
pdata->hw_feat.vlhash ? "YES" : "NO");
XLGMAC_PR("SMA (MDIO) Interface : %s\n",
pdata->hw_feat.sma ? "YES" : "NO");
XLGMAC_PR("PMT Remote Wake-up Packet Enable : %s\n",
pdata->hw_feat.rwk ? "YES" : "NO");
XLGMAC_PR("PMT Magic Packet Enable : %s\n",
pdata->hw_feat.mgk ? "YES" : "NO");
XLGMAC_PR("RMON/MMC Module Enable : %s\n",
pdata->hw_feat.mmc ? "YES" : "NO");
XLGMAC_PR("ARP Offload Enabled : %s\n",
pdata->hw_feat.aoe ? "YES" : "NO");
XLGMAC_PR("IEEE 1588-2008 Timestamp Enabled : %s\n",
pdata->hw_feat.ts ? "YES" : "NO");
XLGMAC_PR("Energy Efficient Ethernet Enabled : %s\n",
pdata->hw_feat.eee ? "YES" : "NO");
XLGMAC_PR("Transmit Checksum Offload Enabled : %s\n",
pdata->hw_feat.tx_coe ? "YES" : "NO");
XLGMAC_PR("Receive Checksum Offload Enabled : %s\n",
pdata->hw_feat.rx_coe ? "YES" : "NO");
XLGMAC_PR("Additional MAC Addresses 1-31 Selected : %s\n",
pdata->hw_feat.addn_mac ? "YES" : "NO");
switch (pdata->hw_feat.ts_src) {
case 0:
str = "RESERVED";
break;
case 1:
str = "INTERNAL";
break;
case 2:
str = "EXTERNAL";
break;
case 3:
str = "BOTH";
break;
}
XLGMAC_PR("Timestamp System Time Source : %s\n", str);
XLGMAC_PR("Source Address or VLAN Insertion Enable : %s\n",
pdata->hw_feat.sa_vlan_ins ? "YES" : "NO");
/* HW Feature Register1 */
switch (pdata->hw_feat.rx_fifo_size) {
case 0:
str = "128 bytes";
break;
case 1:
str = "256 bytes";
break;
case 2:
str = "512 bytes";
break;
case 3:
str = "1 KBytes";
break;
case 4:
str = "2 KBytes";
break;
case 5:
str = "4 KBytes";
break;
case 6:
str = "8 KBytes";
break;
case 7:
str = "16 KBytes";
break;
case 8:
str = "32 kBytes";
break;
case 9:
str = "64 KBytes";
break;
case 10:
str = "128 KBytes";
break;
case 11:
str = "256 KBytes";
break;
default:
str = "RESERVED";
}
XLGMAC_PR("MTL Receive FIFO Size : %s\n", str);
switch (pdata->hw_feat.tx_fifo_size) {
case 0:
str = "128 bytes";
break;
case 1:
str = "256 bytes";
break;
case 2:
str = "512 bytes";
break;
case 3:
str = "1 KBytes";
break;
case 4:
str = "2 KBytes";
break;
case 5:
str = "4 KBytes";
break;
case 6:
str = "8 KBytes";
break;
case 7:
str = "16 KBytes";
break;
case 8:
str = "32 kBytes";
break;
case 9:
str = "64 KBytes";
break;
case 10:
str = "128 KBytes";
break;
case 11:
str = "256 KBytes";
break;
default:
str = "RESERVED";
}
XLGMAC_PR("MTL Transmit FIFO Size : %s\n", str);
XLGMAC_PR("IEEE 1588 High Word Register Enable : %s\n",
pdata->hw_feat.adv_ts_hi ? "YES" : "NO");
XLGMAC_PR("Address width : %u\n",
pdata->hw_feat.dma_width);
XLGMAC_PR("DCB Feature Enable : %s\n",
pdata->hw_feat.dcb ? "YES" : "NO");
XLGMAC_PR("Split Header Feature Enable : %s\n",
pdata->hw_feat.sph ? "YES" : "NO");
XLGMAC_PR("TCP Segmentation Offload Enable : %s\n",
pdata->hw_feat.tso ? "YES" : "NO");
XLGMAC_PR("DMA Debug Registers Enabled : %s\n",
pdata->hw_feat.dma_debug ? "YES" : "NO");
XLGMAC_PR("RSS Feature Enabled : %s\n",
pdata->hw_feat.rss ? "YES" : "NO");
XLGMAC_PR("Number of Traffic classes : %u\n",
(pdata->hw_feat.tc_cnt));
XLGMAC_PR("Hash Table Size : %u\n",
pdata->hw_feat.hash_table_size);
XLGMAC_PR("Total number of L3 or L4 Filters : %u\n",
pdata->hw_feat.l3l4_filter_num);
/* HW Feature Register2 */
XLGMAC_PR("Number of MTL Receive Queues : %u\n",
pdata->hw_feat.rx_q_cnt);
XLGMAC_PR("Number of MTL Transmit Queues : %u\n",
pdata->hw_feat.tx_q_cnt);
XLGMAC_PR("Number of DMA Receive Channels : %u\n",
pdata->hw_feat.rx_ch_cnt);
XLGMAC_PR("Number of DMA Transmit Channels : %u\n",
pdata->hw_feat.tx_ch_cnt);
switch (pdata->hw_feat.pps_out_num) {
case 0:
str = "No PPS output";
break;
case 1:
str = "1 PPS output";
break;
case 2:
str = "2 PPS output";
break;
case 3:
str = "3 PPS output";
break;
case 4:
str = "4 PPS output";
break;
default:
str = "RESERVED";
}
XLGMAC_PR("Number of PPS Outputs : %s\n", str);
switch (pdata->hw_feat.aux_snap_num) {
case 0:
str = "No auxiliary input";
break;
case 1:
str = "1 auxiliary input";
break;
case 2:
str = "2 auxiliary input";
break;
case 3:
str = "3 auxiliary input";
break;
case 4:
str = "4 auxiliary input";
break;
default:
str = "RESERVED";
}
XLGMAC_PR("Number of Auxiliary Snapshot Inputs : %s", str);
XLGMAC_PR("\n");
XLGMAC_PR("=====================================================\n");
XLGMAC_PR("\n");
}
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