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// SPDX-License-Identifier: GPL-2.0+
/* Copyright 2025 NXP */
#include <linux/device.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/string_choices.h>
#include "enetc_pf.h"
#include "enetc4_debugfs.h"
static void enetc_show_si_mac_hash_filter(struct seq_file *s, int i)
{
struct enetc_si *si = s->private;
struct enetc_hw *hw = &si->hw;
u32 hash_h, hash_l;
hash_l = enetc_port_rd(hw, ENETC4_PSIUMHFR0(i));
hash_h = enetc_port_rd(hw, ENETC4_PSIUMHFR1(i));
seq_printf(s, "SI %d unicast MAC hash filter: 0x%08x%08x\n",
i, hash_h, hash_l);
hash_l = enetc_port_rd(hw, ENETC4_PSIMMHFR0(i));
hash_h = enetc_port_rd(hw, ENETC4_PSIMMHFR1(i));
seq_printf(s, "SI %d multicast MAC hash filter: 0x%08x%08x\n",
i, hash_h, hash_l);
}
static int enetc_mac_filter_show(struct seq_file *s, void *data)
{
struct enetc_si *si = s->private;
struct enetc_hw *hw = &si->hw;
struct maft_entry_data maft;
struct enetc_pf *pf;
int i, err, num_si;
u32 val;
pf = enetc_si_priv(si);
num_si = pf->caps.num_vsi + 1;
val = enetc_port_rd(hw, ENETC4_PSIPMMR);
for (i = 0; i < num_si; i++) {
seq_printf(s, "SI %d Unicast Promiscuous mode: %s\n", i,
str_enabled_disabled(PSIPMMR_SI_MAC_UP(i) & val));
seq_printf(s, "SI %d Multicast Promiscuous mode: %s\n", i,
str_enabled_disabled(PSIPMMR_SI_MAC_MP(i) & val));
}
/* MAC hash filter table */
for (i = 0; i < num_si; i++)
enetc_show_si_mac_hash_filter(s, i);
if (!pf->num_mfe)
return 0;
/* MAC address filter table */
seq_puts(s, "MAC address filter table\n");
for (i = 0; i < pf->num_mfe; i++) {
memset(&maft, 0, sizeof(maft));
err = ntmp_maft_query_entry(&si->ntmp_user, i, &maft);
if (err)
return err;
seq_printf(s, "Entry %d, MAC: %pM, SI bitmap: 0x%04x\n", i,
maft.keye.mac_addr, le16_to_cpu(maft.cfge.si_bitmap));
}
return 0;
}
DEFINE_SHOW_ATTRIBUTE(enetc_mac_filter);
void enetc_create_debugfs(struct enetc_si *si)
{
struct net_device *ndev = si->ndev;
struct dentry *root;
root = debugfs_create_dir(netdev_name(ndev), NULL);
if (IS_ERR(root))
return;
si->debugfs_root = root;
debugfs_create_file("mac_filter", 0444, root, si, &enetc_mac_filter_fops);
}
void enetc_remove_debugfs(struct enetc_si *si)
{
debugfs_remove(si->debugfs_root);
si->debugfs_root = NULL;
}
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