1 // SPDX-License-Identifier: GPL-2.0
2 /* Texas Instruments ICSSG Ethernet driver
4 * Copyright (C) 2018-2021 Texas Instruments Incorporated - https://www.ti.com/
8 #include "icssg_prueth.h"
9 #include "icssg_stats.h"
10 #include <linux/regmap.h>
12 static u32 stats_base[] = { 0x54c, /* Slice 0 stats start */
13 0xb18, /* Slice 1 stats start */
16 void emac_update_hardware_stats(struct prueth_emac *emac)
18 struct prueth *prueth = emac->prueth;
19 int slice = prueth_emac_slice(emac);
20 u32 base = stats_base[slice];
24 for (i = 0; i < ARRAY_SIZE(icssg_all_stats); i++) {
25 regmap_read(prueth->miig_rt,
26 base + icssg_all_stats[i].offset,
28 regmap_write(prueth->miig_rt,
29 base + icssg_all_stats[i].offset,
32 emac->stats[i] += val;
36 void emac_stats_work_handler(struct work_struct *work)
38 struct prueth_emac *emac = container_of(work, struct prueth_emac,
40 emac_update_hardware_stats(emac);
42 queue_delayed_work(system_long_wq, &emac->stats_work,
43 msecs_to_jiffies((STATS_TIME_LIMIT_1G_MS * 1000) / emac->speed));
46 int emac_get_stat_by_name(struct prueth_emac *emac, char *stat_name)
50 for (i = 0; i < ARRAY_SIZE(icssg_all_stats); i++) {
51 if (!strcmp(icssg_all_stats[i].name, stat_name))
52 return emac->stats[icssg_all_stats[i].offset / sizeof(u32)];
55 netdev_err(emac->ndev, "Invalid stats %s\n", stat_name);