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_pf *pf = enetc_si_priv(s->private);
32 struct enetc_hw *hw = &pf->si->hw;
33 int num_si = pf->total_vfs + 1;
34 struct maft_entry_data maft;
35 struct ntmp_user *user;
36 u32 val, entry_id;
37 int err = 0;
38 int i;
39
40 val = enetc_port_rd(hw, ENETC4_PSIPMMR);
41 for (i = 0; i < num_si; i++) {
42 seq_printf(s, "SI %d Unicast Promiscuous mode: %s\n", i,
43 str_enabled_disabled(PSIPMMR_SI_MAC_UP(i) & val));
44 seq_printf(s, "SI %d Multicast Promiscuous mode: %s\n", i,
45 str_enabled_disabled(PSIPMMR_SI_MAC_MP(i) & val));
46 }
47
48 /* MAC hash filter table */
49 for (i = 0; i < num_si; i++)
50 enetc_show_si_mac_hash_filter(s, i);
51
52 user = &pf->si->ntmp_user;
53 rtnl_lock();
54
55 if (bitmap_empty(user->maft_eid_bitmap, user->maft_num_entries))
56 goto unlock_rtnl;
57
58 /* MAC address filter table */
59 seq_puts(s, "MAC address filter table\n");
60 for_each_set_bit(entry_id, user->maft_eid_bitmap,
61 user->maft_num_entries) {
62 memset(&maft, 0, sizeof(maft));
63 err = ntmp_maft_query_entry(user, entry_id, &maft);
64 if (err)
65 goto unlock_rtnl;
66
67 seq_printf(s, "Entry %d, MAC: %pM, SI bitmap: 0x%04x\n",
68 entry_id, maft.keye.mac_addr,
69 le16_to_cpu(maft.cfge.si_bitmap));
70 }
71
72 unlock_rtnl:
73 rtnl_unlock();
74
75 return err;
76 }
77 DEFINE_SHOW_ATTRIBUTE(enetc_mac_filter);
78
enetc_create_debugfs(struct enetc_si * si)79 void enetc_create_debugfs(struct enetc_si *si)
80 {
81 struct dentry *root;
82
83 root = debugfs_create_dir(pci_name(si->pdev), NULL);
84 if (IS_ERR(root))
85 return;
86
87 si->debugfs_root = root;
88
89 debugfs_create_file("mac_filter", 0444, root, si, &enetc_mac_filter_fops);
90 }
91
enetc_remove_debugfs(struct enetc_si * si)92 void enetc_remove_debugfs(struct enetc_si *si)
93 {
94 debugfs_remove(si->debugfs_root);
95 si->debugfs_root = NULL;
96 }
97