1 // SPDX-License-Identifier: GPL-2.0+
2 /* Copyright 2025 NXP */
3
4 #include <linux/device.h>
5 #include <linux/debugfs.h>
6 #include <linux/seq_file.h>
7 #include <linux/string_choices.h>
8
9 #include "enetc_pf.h"
10 #include "enetc4_debugfs.h"
11
enetc_show_si_mac_hash_filter(struct seq_file * s,int i)12 static void enetc_show_si_mac_hash_filter(struct seq_file *s, int i)
13 {
14 struct enetc_si *si = s->private;
15 struct enetc_hw *hw = &si->hw;
16 u32 hash_h, hash_l;
17
18 hash_l = enetc_port_rd(hw, ENETC4_PSIUMHFR0(i));
19 hash_h = enetc_port_rd(hw, ENETC4_PSIUMHFR1(i));
20 seq_printf(s, "SI %d unicast MAC hash filter: 0x%08x%08x\n",
21 i, hash_h, hash_l);
22
23 hash_l = enetc_port_rd(hw, ENETC4_PSIMMHFR0(i));
24 hash_h = enetc_port_rd(hw, ENETC4_PSIMMHFR1(i));
25 seq_printf(s, "SI %d multicast MAC hash filter: 0x%08x%08x\n",
26 i, hash_h, hash_l);
27 }
28
enetc_mac_filter_show(struct seq_file * s,void * data)29 static int enetc_mac_filter_show(struct seq_file *s, void *data)
30 {
31 struct enetc_si *si = s->private;
32 struct enetc_hw *hw = &si->hw;
33 struct maft_entry_data maft;
34 struct enetc_pf *pf;
35 int i, err, num_si;
36 u32 val;
37
38 pf = enetc_si_priv(si);
39 num_si = pf->caps.num_vsi + 1;
40
41 val = enetc_port_rd(hw, ENETC4_PSIPMMR);
42 for (i = 0; i < num_si; i++) {
43 seq_printf(s, "SI %d Unicast Promiscuous mode: %s\n", i,
44 str_enabled_disabled(PSIPMMR_SI_MAC_UP(i) & val));
45 seq_printf(s, "SI %d Multicast Promiscuous mode: %s\n", i,
46 str_enabled_disabled(PSIPMMR_SI_MAC_MP(i) & val));
47 }
48
49 /* MAC hash filter table */
50 for (i = 0; i < num_si; i++)
51 enetc_show_si_mac_hash_filter(s, i);
52
53 if (!pf->num_mfe)
54 return 0;
55
56 /* MAC address filter table */
57 seq_puts(s, "MAC address filter table\n");
58 for (i = 0; i < pf->num_mfe; i++) {
59 memset(&maft, 0, sizeof(maft));
60 err = ntmp_maft_query_entry(&si->ntmp_user, i, &maft);
61 if (err)
62 return err;
63
64 seq_printf(s, "Entry %d, MAC: %pM, SI bitmap: 0x%04x\n", i,
65 maft.keye.mac_addr, le16_to_cpu(maft.cfge.si_bitmap));
66 }
67
68 return 0;
69 }
70 DEFINE_SHOW_ATTRIBUTE(enetc_mac_filter);
71
enetc_create_debugfs(struct enetc_si * si)72 void enetc_create_debugfs(struct enetc_si *si)
73 {
74 struct net_device *ndev = si->ndev;
75 struct dentry *root;
76
77 root = debugfs_create_dir(netdev_name(ndev), NULL);
78 if (IS_ERR(root))
79 return;
80
81 si->debugfs_root = root;
82
83 debugfs_create_file("mac_filter", 0444, root, si, &enetc_mac_filter_fops);
84 }
85
enetc_remove_debugfs(struct enetc_si * si)86 void enetc_remove_debugfs(struct enetc_si *si)
87 {
88 debugfs_remove(si->debugfs_root);
89 si->debugfs_root = NULL;
90 }
91