ethernet/pasemi/pasemi_mac_ethtool.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * Copyright (C) 2006-2008 PA Semi, Inc
0004  *
0005  * Ethtool hooks for the PA Semi PWRficient onchip 1G/10G Ethernet MACs
0006  */
0007
0008
0009 #include <linux/netdevice.h>
0010 #include <linux/ethtool.h>
0011 #include <linux/pci.h>
0012
0013 #include <asm/pasemi_dma.h>
0014 #include "pasemi_mac.h"
0015
0016 static struct {
0017     const char str[ETH_GSTRING_LEN];
0018 } ethtool_stats_keys[] = {
0019     { "rx-drops" },
0020     { "rx-bytes" },
0021     { "rx-packets" },
0022     { "rx-broadcast-packets" },
0023     { "rx-multicast-packets" },
0024     { "rx-crc-errors" },
0025     { "rx-undersize-errors" },
0026     { "rx-oversize-errors" },
0027     { "rx-short-fragment-errors" },
0028     { "rx-jabber-errors" },
0029     { "rx-64-byte-packets" },
0030     { "rx-65-127-byte-packets" },
0031     { "rx-128-255-byte-packets" },
0032     { "rx-256-511-byte-packets" },
0033     { "rx-512-1023-byte-packets" },
0034     { "rx-1024-1518-byte-packets" },
0035     { "rx-pause-frames" },
0036     { "tx-bytes" },
0037     { "tx-packets" },
0038     { "tx-broadcast-packets" },
0039     { "tx-multicast-packets" },
0040     { "tx-collisions" },
0041     { "tx-late-collisions" },
0042     { "tx-excessive-collisions" },
0043     { "tx-crc-errors" },
0044     { "tx-undersize-errors" },
0045     { "tx-oversize-errors" },
0046     { "tx-64-byte-packets" },
0047     { "tx-65-127-byte-packets" },
0048     { "tx-128-255-byte-packets" },
0049     { "tx-256-511-byte-packets" },
0050     { "tx-512-1023-byte-packets" },
0051     { "tx-1024-1518-byte-packets" },
0052 };
0053
0054 static u32
0055 pasemi_mac_ethtool_get_msglevel(struct net_device *netdev)
0056 {
0057     struct pasemi_mac *mac = netdev_priv(netdev);
0058     return mac->msg_enable;
0059 }
0060
0061 static void
0062 pasemi_mac_ethtool_set_msglevel(struct net_device *netdev,
0063                 u32 level)
0064 {
0065     struct pasemi_mac *mac = netdev_priv(netdev);
0066     mac->msg_enable = level;
0067 }
0068
0069
0070 static void
0071 pasemi_mac_ethtool_get_ringparam(struct net_device *netdev,
0072                  struct ethtool_ringparam *ering,
0073                  struct kernel_ethtool_ringparam *kernel_ering,
0074                  struct netlink_ext_ack *extack)
0075 {
0076     struct pasemi_mac *mac = netdev_priv(netdev);
0077
0078     ering->tx_max_pending = TX_RING_SIZE/2;
0079     ering->tx_pending = RING_USED(mac->tx)/2;
0080     ering->rx_max_pending = RX_RING_SIZE/4;
0081     ering->rx_pending = RING_USED(mac->rx)/4;
0082 }
0083
0084 static int pasemi_mac_get_sset_count(struct net_device *netdev, int sset)
0085 {
0086     switch (sset) {
0087     case ETH_SS_STATS:
0088         return ARRAY_SIZE(ethtool_stats_keys);
0089     default:
0090         return -EOPNOTSUPP;
0091     }
0092 }
0093
0094 static void pasemi_mac_get_ethtool_stats(struct net_device *netdev,
0095         struct ethtool_stats *stats, u64 *data)
0096 {
0097     struct pasemi_mac *mac = netdev_priv(netdev);
0098     int i;
0099
0100     data[0] = pasemi_read_dma_reg(PAS_DMA_RXINT_RCMDSTA(mac->dma_if))
0101             >> PAS_DMA_RXINT_RCMDSTA_DROPS_S;
0102     for (i = 0; i < 32; i++)
0103         data[1+i] = pasemi_read_mac_reg(mac->dma_if, PAS_MAC_RMON(i));
0104 }
0105
0106 static void pasemi_mac_get_strings(struct net_device *netdev, u32 stringset,
0107                    u8 *data)
0108 {
0109     memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
0110 }
0111
0112 const struct ethtool_ops pasemi_mac_ethtool_ops = {
0113     .get_msglevel       = pasemi_mac_ethtool_get_msglevel,
0114     .set_msglevel       = pasemi_mac_ethtool_set_msglevel,
0115     .get_link       = ethtool_op_get_link,
0116     .get_ringparam          = pasemi_mac_ethtool_get_ringparam,
0117     .get_strings        = pasemi_mac_get_strings,
0118     .get_sset_count     = pasemi_mac_get_sset_count,
0119     .get_ethtool_stats  = pasemi_mac_get_ethtool_stats,
0120     .get_link_ksettings = phy_ethtool_get_link_ksettings,
0121     .set_link_ksettings = phy_ethtool_set_link_ksettings,
0122 };
0123