cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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pasemi_mac_ethtool.c (3235B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * Copyright (C) 2006-2008 PA Semi, Inc
      4 *
      5 * Ethtool hooks for the PA Semi PWRficient onchip 1G/10G Ethernet MACs
      6 */
      7
      8
      9#include <linux/netdevice.h>
     10#include <linux/ethtool.h>
     11#include <linux/pci.h>
     12
     13#include <asm/pasemi_dma.h>
     14#include "pasemi_mac.h"
     15
     16static struct {
     17	const char str[ETH_GSTRING_LEN];
     18} ethtool_stats_keys[] = {
     19	{ "rx-drops" },
     20	{ "rx-bytes" },
     21	{ "rx-packets" },
     22	{ "rx-broadcast-packets" },
     23	{ "rx-multicast-packets" },
     24	{ "rx-crc-errors" },
     25	{ "rx-undersize-errors" },
     26	{ "rx-oversize-errors" },
     27	{ "rx-short-fragment-errors" },
     28	{ "rx-jabber-errors" },
     29	{ "rx-64-byte-packets" },
     30	{ "rx-65-127-byte-packets" },
     31	{ "rx-128-255-byte-packets" },
     32	{ "rx-256-511-byte-packets" },
     33	{ "rx-512-1023-byte-packets" },
     34	{ "rx-1024-1518-byte-packets" },
     35	{ "rx-pause-frames" },
     36	{ "tx-bytes" },
     37	{ "tx-packets" },
     38	{ "tx-broadcast-packets" },
     39	{ "tx-multicast-packets" },
     40	{ "tx-collisions" },
     41	{ "tx-late-collisions" },
     42	{ "tx-excessive-collisions" },
     43	{ "tx-crc-errors" },
     44	{ "tx-undersize-errors" },
     45	{ "tx-oversize-errors" },
     46	{ "tx-64-byte-packets" },
     47	{ "tx-65-127-byte-packets" },
     48	{ "tx-128-255-byte-packets" },
     49	{ "tx-256-511-byte-packets" },
     50	{ "tx-512-1023-byte-packets" },
     51	{ "tx-1024-1518-byte-packets" },
     52};
     53
     54static u32
     55pasemi_mac_ethtool_get_msglevel(struct net_device *netdev)
     56{
     57	struct pasemi_mac *mac = netdev_priv(netdev);
     58	return mac->msg_enable;
     59}
     60
     61static void
     62pasemi_mac_ethtool_set_msglevel(struct net_device *netdev,
     63				u32 level)
     64{
     65	struct pasemi_mac *mac = netdev_priv(netdev);
     66	mac->msg_enable = level;
     67}
     68
     69
     70static void
     71pasemi_mac_ethtool_get_ringparam(struct net_device *netdev,
     72				 struct ethtool_ringparam *ering,
     73				 struct kernel_ethtool_ringparam *kernel_ering,
     74				 struct netlink_ext_ack *extack)
     75{
     76	struct pasemi_mac *mac = netdev_priv(netdev);
     77
     78	ering->tx_max_pending = TX_RING_SIZE/2;
     79	ering->tx_pending = RING_USED(mac->tx)/2;
     80	ering->rx_max_pending = RX_RING_SIZE/4;
     81	ering->rx_pending = RING_USED(mac->rx)/4;
     82}
     83
     84static int pasemi_mac_get_sset_count(struct net_device *netdev, int sset)
     85{
     86	switch (sset) {
     87	case ETH_SS_STATS:
     88		return ARRAY_SIZE(ethtool_stats_keys);
     89	default:
     90		return -EOPNOTSUPP;
     91	}
     92}
     93
     94static void pasemi_mac_get_ethtool_stats(struct net_device *netdev,
     95		struct ethtool_stats *stats, u64 *data)
     96{
     97	struct pasemi_mac *mac = netdev_priv(netdev);
     98	int i;
     99
    100	data[0] = pasemi_read_dma_reg(PAS_DMA_RXINT_RCMDSTA(mac->dma_if))
    101			>> PAS_DMA_RXINT_RCMDSTA_DROPS_S;
    102	for (i = 0; i < 32; i++)
    103		data[1+i] = pasemi_read_mac_reg(mac->dma_if, PAS_MAC_RMON(i));
    104}
    105
    106static void pasemi_mac_get_strings(struct net_device *netdev, u32 stringset,
    107				   u8 *data)
    108{
    109	memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
    110}
    111
    112const struct ethtool_ops pasemi_mac_ethtool_ops = {
    113	.get_msglevel		= pasemi_mac_ethtool_get_msglevel,
    114	.set_msglevel		= pasemi_mac_ethtool_set_msglevel,
    115	.get_link		= ethtool_op_get_link,
    116	.get_ringparam          = pasemi_mac_ethtool_get_ringparam,
    117	.get_strings		= pasemi_mac_get_strings,
    118	.get_sset_count		= pasemi_mac_get_sset_count,
    119	.get_ethtool_stats	= pasemi_mac_get_ethtool_stats,
    120	.get_link_ksettings	= phy_ethtool_get_link_ksettings,
    121	.set_link_ksettings	= phy_ethtool_set_link_ksettings,
    122};
    123