276 lines
9.2 KiB
C
276 lines
9.2 KiB
C
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/* Synopsys DesignWare Core Enterprise Ethernet (XLGMAC) Driver
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*
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* Copyright (c) 2017 Synopsys, Inc. (www.synopsys.com)
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*
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* This program is dual-licensed; you may select either version 2 of
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* the GNU General Public License ("GPL") or BSD license ("BSD").
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*
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* This Synopsys DWC XLGMAC software driver and associated documentation
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* (hereinafter the "Software") is an unsupported proprietary work of
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* Synopsys, Inc. unless otherwise expressly agreed to in writing between
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* Synopsys and you. The Software IS NOT an item of Licensed Software or a
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* Licensed Product under any End User Software License Agreement or
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* Agreement for Licensed Products with Synopsys or any supplement thereto.
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* Synopsys is a registered trademark of Synopsys, Inc. Other names included
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* in the SOFTWARE may be the trademarks of their respective owners.
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*/
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#include <linux/ethtool.h>
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#include <linux/kernel.h>
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#include <linux/netdevice.h>
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#include "dwc-xlgmac.h"
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#include "dwc-xlgmac-reg.h"
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struct xlgmac_stats_desc {
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char stat_string[ETH_GSTRING_LEN];
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int stat_offset;
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};
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#define XLGMAC_STAT(str, var) \
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{ \
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str, \
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offsetof(struct xlgmac_pdata, stats.var), \
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}
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static const struct xlgmac_stats_desc xlgmac_gstring_stats[] = {
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/* MMC TX counters */
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XLGMAC_STAT("tx_bytes", txoctetcount_gb),
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XLGMAC_STAT("tx_bytes_good", txoctetcount_g),
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XLGMAC_STAT("tx_packets", txframecount_gb),
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XLGMAC_STAT("tx_packets_good", txframecount_g),
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XLGMAC_STAT("tx_unicast_packets", txunicastframes_gb),
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XLGMAC_STAT("tx_broadcast_packets", txbroadcastframes_gb),
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XLGMAC_STAT("tx_broadcast_packets_good", txbroadcastframes_g),
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XLGMAC_STAT("tx_multicast_packets", txmulticastframes_gb),
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XLGMAC_STAT("tx_multicast_packets_good", txmulticastframes_g),
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XLGMAC_STAT("tx_vlan_packets_good", txvlanframes_g),
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XLGMAC_STAT("tx_64_byte_packets", tx64octets_gb),
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XLGMAC_STAT("tx_65_to_127_byte_packets", tx65to127octets_gb),
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XLGMAC_STAT("tx_128_to_255_byte_packets", tx128to255octets_gb),
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XLGMAC_STAT("tx_256_to_511_byte_packets", tx256to511octets_gb),
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XLGMAC_STAT("tx_512_to_1023_byte_packets", tx512to1023octets_gb),
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XLGMAC_STAT("tx_1024_to_max_byte_packets", tx1024tomaxoctets_gb),
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XLGMAC_STAT("tx_underflow_errors", txunderflowerror),
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XLGMAC_STAT("tx_pause_frames", txpauseframes),
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/* MMC RX counters */
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XLGMAC_STAT("rx_bytes", rxoctetcount_gb),
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XLGMAC_STAT("rx_bytes_good", rxoctetcount_g),
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XLGMAC_STAT("rx_packets", rxframecount_gb),
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XLGMAC_STAT("rx_unicast_packets_good", rxunicastframes_g),
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XLGMAC_STAT("rx_broadcast_packets_good", rxbroadcastframes_g),
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XLGMAC_STAT("rx_multicast_packets_good", rxmulticastframes_g),
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XLGMAC_STAT("rx_vlan_packets", rxvlanframes_gb),
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XLGMAC_STAT("rx_64_byte_packets", rx64octets_gb),
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XLGMAC_STAT("rx_65_to_127_byte_packets", rx65to127octets_gb),
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XLGMAC_STAT("rx_128_to_255_byte_packets", rx128to255octets_gb),
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XLGMAC_STAT("rx_256_to_511_byte_packets", rx256to511octets_gb),
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XLGMAC_STAT("rx_512_to_1023_byte_packets", rx512to1023octets_gb),
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XLGMAC_STAT("rx_1024_to_max_byte_packets", rx1024tomaxoctets_gb),
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XLGMAC_STAT("rx_undersize_packets_good", rxundersize_g),
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XLGMAC_STAT("rx_oversize_packets_good", rxoversize_g),
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XLGMAC_STAT("rx_crc_errors", rxcrcerror),
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XLGMAC_STAT("rx_crc_errors_small_packets", rxrunterror),
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XLGMAC_STAT("rx_crc_errors_giant_packets", rxjabbererror),
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XLGMAC_STAT("rx_length_errors", rxlengtherror),
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XLGMAC_STAT("rx_out_of_range_errors", rxoutofrangetype),
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XLGMAC_STAT("rx_fifo_overflow_errors", rxfifooverflow),
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XLGMAC_STAT("rx_watchdog_errors", rxwatchdogerror),
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XLGMAC_STAT("rx_pause_frames", rxpauseframes),
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/* Extra counters */
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XLGMAC_STAT("tx_tso_packets", tx_tso_packets),
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XLGMAC_STAT("rx_split_header_packets", rx_split_header_packets),
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XLGMAC_STAT("tx_process_stopped", tx_process_stopped),
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XLGMAC_STAT("rx_process_stopped", rx_process_stopped),
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XLGMAC_STAT("tx_buffer_unavailable", tx_buffer_unavailable),
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XLGMAC_STAT("rx_buffer_unavailable", rx_buffer_unavailable),
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XLGMAC_STAT("fatal_bus_error", fatal_bus_error),
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XLGMAC_STAT("tx_vlan_packets", tx_vlan_packets),
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XLGMAC_STAT("rx_vlan_packets", rx_vlan_packets),
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XLGMAC_STAT("napi_poll_isr", napi_poll_isr),
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XLGMAC_STAT("napi_poll_txtimer", napi_poll_txtimer),
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};
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#define XLGMAC_STATS_COUNT ARRAY_SIZE(xlgmac_gstring_stats)
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static void xlgmac_ethtool_get_drvinfo(struct net_device *netdev,
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struct ethtool_drvinfo *drvinfo)
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{
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struct xlgmac_pdata *pdata = netdev_priv(netdev);
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u32 ver = pdata->hw_feat.version;
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u32 snpsver, devid, userver;
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strlcpy(drvinfo->driver, pdata->drv_name, sizeof(drvinfo->driver));
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strlcpy(drvinfo->version, pdata->drv_ver, sizeof(drvinfo->version));
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strlcpy(drvinfo->bus_info, dev_name(pdata->dev),
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sizeof(drvinfo->bus_info));
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/* S|SNPSVER: Synopsys-defined Version
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* D|DEVID: Indicates the Device family
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* U|USERVER: User-defined Version
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*/
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snpsver = XLGMAC_GET_REG_BITS(ver, MAC_VR_SNPSVER_POS,
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MAC_VR_SNPSVER_LEN);
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devid = XLGMAC_GET_REG_BITS(ver, MAC_VR_DEVID_POS,
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MAC_VR_DEVID_LEN);
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userver = XLGMAC_GET_REG_BITS(ver, MAC_VR_USERVER_POS,
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MAC_VR_USERVER_LEN);
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snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
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"S.D.U: %x.%x.%x", snpsver, devid, userver);
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}
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static u32 xlgmac_ethtool_get_msglevel(struct net_device *netdev)
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{
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struct xlgmac_pdata *pdata = netdev_priv(netdev);
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return pdata->msg_enable;
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}
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static void xlgmac_ethtool_set_msglevel(struct net_device *netdev,
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u32 msglevel)
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{
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struct xlgmac_pdata *pdata = netdev_priv(netdev);
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pdata->msg_enable = msglevel;
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}
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static void xlgmac_ethtool_get_channels(struct net_device *netdev,
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struct ethtool_channels *channel)
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{
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struct xlgmac_pdata *pdata = netdev_priv(netdev);
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channel->max_rx = XLGMAC_MAX_DMA_CHANNELS;
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channel->max_tx = XLGMAC_MAX_DMA_CHANNELS;
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channel->rx_count = pdata->rx_q_count;
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channel->tx_count = pdata->tx_q_count;
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}
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static int xlgmac_ethtool_get_coalesce(struct net_device *netdev,
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struct ethtool_coalesce *ec)
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{
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struct xlgmac_pdata *pdata = netdev_priv(netdev);
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memset(ec, 0, sizeof(struct ethtool_coalesce));
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ec->rx_coalesce_usecs = pdata->rx_usecs;
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ec->rx_max_coalesced_frames = pdata->rx_frames;
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ec->tx_max_coalesced_frames = pdata->tx_frames;
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return 0;
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}
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static int xlgmac_ethtool_set_coalesce(struct net_device *netdev,
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struct ethtool_coalesce *ec)
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{
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struct xlgmac_pdata *pdata = netdev_priv(netdev);
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struct xlgmac_hw_ops *hw_ops = &pdata->hw_ops;
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unsigned int rx_frames, rx_riwt, rx_usecs;
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unsigned int tx_frames;
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/* Check for not supported parameters */
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if ((ec->rx_coalesce_usecs_irq) || (ec->rx_max_coalesced_frames_irq) ||
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(ec->tx_coalesce_usecs) || (ec->tx_coalesce_usecs_high) ||
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(ec->tx_max_coalesced_frames_irq) || (ec->tx_coalesce_usecs_irq) ||
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(ec->stats_block_coalesce_usecs) || (ec->pkt_rate_low) ||
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(ec->use_adaptive_rx_coalesce) || (ec->use_adaptive_tx_coalesce) ||
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(ec->rx_max_coalesced_frames_low) || (ec->rx_coalesce_usecs_low) ||
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(ec->tx_coalesce_usecs_low) || (ec->tx_max_coalesced_frames_low) ||
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(ec->pkt_rate_high) || (ec->rx_coalesce_usecs_high) ||
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(ec->rx_max_coalesced_frames_high) ||
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(ec->tx_max_coalesced_frames_high) ||
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(ec->rate_sample_interval))
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return -EOPNOTSUPP;
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rx_usecs = ec->rx_coalesce_usecs;
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rx_riwt = hw_ops->usec_to_riwt(pdata, rx_usecs);
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rx_frames = ec->rx_max_coalesced_frames;
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tx_frames = ec->tx_max_coalesced_frames;
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if ((rx_riwt > XLGMAC_MAX_DMA_RIWT) ||
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(rx_riwt < XLGMAC_MIN_DMA_RIWT) ||
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(rx_frames > pdata->rx_desc_count))
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return -EINVAL;
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if (tx_frames > pdata->tx_desc_count)
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return -EINVAL;
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pdata->rx_riwt = rx_riwt;
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pdata->rx_usecs = rx_usecs;
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pdata->rx_frames = rx_frames;
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hw_ops->config_rx_coalesce(pdata);
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pdata->tx_frames = tx_frames;
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hw_ops->config_tx_coalesce(pdata);
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return 0;
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}
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static void xlgmac_ethtool_get_strings(struct net_device *netdev,
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u32 stringset, u8 *data)
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{
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int i;
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switch (stringset) {
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case ETH_SS_STATS:
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for (i = 0; i < XLGMAC_STATS_COUNT; i++) {
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memcpy(data, xlgmac_gstring_stats[i].stat_string,
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ETH_GSTRING_LEN);
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data += ETH_GSTRING_LEN;
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}
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break;
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default:
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WARN_ON(1);
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break;
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}
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}
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static int xlgmac_ethtool_get_sset_count(struct net_device *netdev,
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int stringset)
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{
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int ret;
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switch (stringset) {
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case ETH_SS_STATS:
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ret = XLGMAC_STATS_COUNT;
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break;
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default:
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ret = -EOPNOTSUPP;
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}
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return ret;
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}
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static void xlgmac_ethtool_get_ethtool_stats(struct net_device *netdev,
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struct ethtool_stats *stats,
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u64 *data)
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{
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struct xlgmac_pdata *pdata = netdev_priv(netdev);
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u8 *stat;
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int i;
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pdata->hw_ops.read_mmc_stats(pdata);
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for (i = 0; i < XLGMAC_STATS_COUNT; i++) {
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stat = (u8 *)pdata + xlgmac_gstring_stats[i].stat_offset;
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*data++ = *(u64 *)stat;
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}
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}
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static const struct ethtool_ops xlgmac_ethtool_ops = {
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.get_drvinfo = xlgmac_ethtool_get_drvinfo,
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.get_link = ethtool_op_get_link,
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.get_msglevel = xlgmac_ethtool_get_msglevel,
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.set_msglevel = xlgmac_ethtool_set_msglevel,
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.get_channels = xlgmac_ethtool_get_channels,
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.get_coalesce = xlgmac_ethtool_get_coalesce,
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.set_coalesce = xlgmac_ethtool_set_coalesce,
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.get_strings = xlgmac_ethtool_get_strings,
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.get_sset_count = xlgmac_ethtool_get_sset_count,
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.get_ethtool_stats = xlgmac_ethtool_get_ethtool_stats,
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};
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const struct ethtool_ops *xlgmac_get_ethtool_ops(void)
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{
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return &xlgmac_ethtool_ops;
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}
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