drivers/net/ethernet/pasemi/pasemi_mac_ethtool.c

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/pasemi/pasemi_mac_ethtool.c

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/pasemi/pasemi_mac_ethtool.c
Extension
.c
Size
3235 bytes
Lines
124
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2006-2008 PA Semi, Inc
 *
 * Ethtool hooks for the PA Semi PWRficient onchip 1G/10G Ethernet MACs
 */


#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include <linux/pci.h>

#include <asm/pasemi_dma.h>
#include "pasemi_mac.h"

static struct {
	const char str[ETH_GSTRING_LEN];
} ethtool_stats_keys[] = {
	{ "rx-drops" },
	{ "rx-bytes" },
	{ "rx-packets" },
	{ "rx-broadcast-packets" },
	{ "rx-multicast-packets" },
	{ "rx-crc-errors" },
	{ "rx-undersize-errors" },
	{ "rx-oversize-errors" },
	{ "rx-short-fragment-errors" },
	{ "rx-jabber-errors" },
	{ "rx-64-byte-packets" },
	{ "rx-65-127-byte-packets" },
	{ "rx-128-255-byte-packets" },
	{ "rx-256-511-byte-packets" },
	{ "rx-512-1023-byte-packets" },
	{ "rx-1024-1518-byte-packets" },
	{ "rx-pause-frames" },
	{ "tx-bytes" },
	{ "tx-packets" },
	{ "tx-broadcast-packets" },
	{ "tx-multicast-packets" },
	{ "tx-collisions" },
	{ "tx-late-collisions" },
	{ "tx-excessive-collisions" },
	{ "tx-crc-errors" },
	{ "tx-undersize-errors" },
	{ "tx-oversize-errors" },
	{ "tx-64-byte-packets" },
	{ "tx-65-127-byte-packets" },
	{ "tx-128-255-byte-packets" },
	{ "tx-256-511-byte-packets" },
	{ "tx-512-1023-byte-packets" },
	{ "tx-1024-1518-byte-packets" },
};

static u32
pasemi_mac_ethtool_get_msglevel(struct net_device *netdev)
{
	struct pasemi_mac *mac = netdev_priv(netdev);
	return mac->msg_enable;
}

static void
pasemi_mac_ethtool_set_msglevel(struct net_device *netdev,
				u32 level)
{
	struct pasemi_mac *mac = netdev_priv(netdev);
	mac->msg_enable = level;
}


static void
pasemi_mac_ethtool_get_ringparam(struct net_device *netdev,
				 struct ethtool_ringparam *ering,
				 struct kernel_ethtool_ringparam *kernel_ering,
				 struct netlink_ext_ack *extack)
{
	struct pasemi_mac *mac = netdev_priv(netdev);

	ering->tx_max_pending = TX_RING_SIZE/2;
	ering->tx_pending = RING_USED(mac->tx)/2;
	ering->rx_max_pending = RX_RING_SIZE/4;
	ering->rx_pending = RING_USED(mac->rx)/4;
}

static int pasemi_mac_get_sset_count(struct net_device *netdev, int sset)
{
	switch (sset) {
	case ETH_SS_STATS:
		return ARRAY_SIZE(ethtool_stats_keys);
	default:
		return -EOPNOTSUPP;

Annotation

Implementation Notes