// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0-or-later
/*
* Copyright 2008 - 2016 Freescale Semiconductor Inc.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/string.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/net_tstamp.h>
#include <linux/fsl/ptp_qoriq.h>
#include "dpaa_eth.h"
#include "mac.h"
static const char dpaa_stats_percpu[][ETH_GSTRING_LEN] = {
"interrupts",
"rx packets",
"tx packets",
"tx confirm",
"tx S/G",
"tx error",
"rx error",
"rx dropped",
"tx dropped",
};
static char dpaa_stats_global[][ETH_GSTRING_LEN] = {
/* dpa rx errors */
"rx dma error",
"rx frame physical error",
"rx frame size error",
"rx header error",
/* demultiplexing errors */
"qman cg_tdrop",
"qman wred",
"qman error cond",
"qman early window",
"qman late window",
"qman fq tdrop",
"qman fq retired",
"qman orp disabled",
/* congestion related stats */
"congestion time (ms)",
"entered congestion",
"congested (0/1)"
};
#define DPAA_STATS_PERCPU_LEN ARRAY_SIZE(dpaa_stats_percpu)
#define DPAA_STATS_GLOBAL_LEN ARRAY_SIZE(dpaa_stats_global)
static int dpaa_get_link_ksettings(struct net_device *net_dev,
struct ethtool_link_ksettings *cmd)
{
struct dpaa_priv *priv = netdev_priv(net_dev);
struct mac_device *mac_dev = priv->mac_dev;
return phylink_ethtool_ksettings_get(mac_dev->phylink, cmd);
}
static int dpaa_set_link_ksettings(struct net_device *net_dev,
const struct ethtool_link_ksettings *cmd)
{
struct dpaa_priv *priv = netdev_priv(net_dev);
struct mac_device *mac_dev = priv->mac_dev;
return phylink_ethtool_ksettings_set(mac_dev->phylink, cmd);
}
static void dpaa_get_drvinfo(struct net_device *net_dev,
struct ethtool_drvinfo *drvinfo)
{
strscpy(drvinfo->driver, KBUILD_MODNAME,
sizeof(drvinfo->driver));
strscpy(drvinfo->bus_info, dev_name(net_dev->dev.parent->parent),
sizeof(drvinfo->bus_info));
}
static u32 dpaa_get_msglevel(struct net_device *net_dev)
{
return ((struct dpaa_priv *)netdev_priv(net_dev))->msg_enable;
}
static void dpaa_set_msglevel(struct net_device *net_dev,
u32 msg_enable)
{
((struct dpaa_priv *)netdev_priv(net_dev))->msg_enable = msg_enable;
}
static int dpaa_nway_reset(struct net_device *net_dev)
{
struct dpaa_priv *priv = netdev_priv(net_dev);
struct mac_device *mac_dev = priv->mac_dev;
return phylink_ethtool_nway_reset(mac_dev->phylink);
}
static void dpaa_get_pauseparam(struct net_device *net_dev,
struct ethtool_pauseparam *epause)
{
struct dpaa_priv *priv = netdev_priv(net_dev);
struct mac_device *mac_dev = priv->mac_dev;
phylink_ethtool_get_pauseparam(mac_dev->phylink, epause);
}
static int dpaa_set_pauseparam(struct net_device *net_dev,
struct ethtool_pauseparam *epause)
{
struct dpaa_priv *priv = netdev_priv(net_dev);
struct mac_device *mac_dev = priv->mac_dev;
return phylink_ethtool_set_pauseparam(mac_dev->phylink, epause);
}
static int dpaa_get_sset_count(struct net_device *net_dev, int type)
{
unsigned int total_stats, num_stats;
num_stats = num_online_cpus() + 1;
total_stats = num_stats * (DPAA_STATS_PERCPU_LEN + 1) +
DPAA_STATS_GLOBAL_LEN;
switch (type) {
case ETH_SS_STATS:
return total_stats;
default:
return -EOPNOTSUPP;
}
}
static void copy_stats(struct dpaa_percpu_priv *percpu_priv, int num_cpus,
int crr_cpu, u64 bp_count, u64 *data)
{
int num_values = num_cpus + 1;
int crr = 0;
/* update current CPU's stats and also add them to the total values */
data[crr * num_values + crr_cpu] = percpu_priv->in_interrupt;
data[crr++ * num_values + num_cpus] += percpu_priv->in_interrupt;
data[crr * num_values + crr_cpu] = percpu_priv->stats.rx_packets;
data[crr++ * num_values + num_cpus] += percpu_priv->stats.rx_packets;
data[crr * num_values + crr_cpu] = percpu_priv->stats.tx_packets;
data[crr++ * num_values + num_cpus] += percpu_priv->stats.tx_packets;
data[crr * num_values + crr_cpu] = percpu_priv->tx_confirm;
data[crr++ * num_values + num_cpus] += percpu_priv->tx_confirm;
data[crr * num_values + crr_cpu] = percpu_priv->tx_frag_skbuffs;
data[crr++ * num_values + num_cpus] += percpu_priv->tx_frag_skbuffs;
data[crr * num_values + crr_cpu] = percpu_priv->stats.tx_errors;
data[crr++ * num_values + num_cpus] += percpu_priv->stats.tx_errors;
data[crr * num_values + crr_cpu] = percpu_priv->stats.rx_errors;
data[crr++ * num_values + num_cpus] += percpu_priv->stats.rx_errors;
data[crr * num_values + crr_cpu] = percpu_priv->stats.rx_dropped;
data[crr++ * num_values + num_cpus] += percpu_priv->stats.rx_dropped;
data[crr * num_values + crr_cpu] = percpu_priv->stats.tx_dropped;
data[crr++ * num_values + num_cpus] += percpu_priv->stats.tx_dropped;
data[crr * num_values + crr_cpu] = bp_count;
data[crr++ * num_values + num_cpus] += bp_count;
}
static void dpaa_get_ethtool_stats(struct net_device *net_dev,
struct ethtool_stats *stats, u64 *data)
{
struct dpaa_percpu_priv *percpu_priv;
struct dpaa_rx_errors rx_errors;
unsigned int num_cpus, offset;
u64 bp_count, cg_time, cg_num;
struct dpaa_ern_cnt ern_cnt;
struct dpaa_bp *dpaa_bp;
struct dpaa_priv *priv;
int total_stats, i;
bool cg_status;
total_stats = dpaa_get_sset_count(net_dev, ETH_SS_STATS);
priv = netdev_priv(net_dev);
num_cpus = num_online_cpus();
memset(&bp_count, 0, sizeof(bp_count));
memset(&rx_errors, 0, sizeof(struct dpaa_rx_errors));
memset(&ern_cnt, 0, sizeof(struct dpaa_ern_cnt));
memset(data, 0, total_stats * sizeof(u64));
for_each_online_cpu(i) {
percpu_priv = per_cpu_ptr(priv->percpu_priv, i);
dpaa_bp = priv->dpaa_bp;
if (!dpaa_bp->percpu_count)
continue;
bp_count = *(per_cpu_ptr(dpaa_bp->percpu_count, i));
rx_errors.dme += percpu_priv->rx_errors.dme;
rx_errors.fpe += percpu_priv->rx_errors.fpe;
rx_errors.fse += percpu_priv->rx_errors.fse;
rx_errors.phe += percpu_priv->rx_errors.phe;
ern_cnt.cg_tdrop += percpu_priv->ern_cnt.cg_tdrop;
ern_cnt.wred += percpu_priv->ern_cnt.wred;
ern_cnt.err_cond += percpu_priv->ern_cnt.err_cond;
ern_cnt.early_window += percpu_priv->ern_cnt.early_window;
ern_cnt.late_window += percpu_priv->ern_cnt.late_window;
ern_cnt.fq_tdrop += percpu_priv->ern_cnt.fq_tdrop;
ern_cnt.fq_retired += percpu_priv->ern_cnt.fq_retired;
ern_cnt.orp_zero += percpu_priv->ern_cnt.orp_zero;
copy_stats(percpu_priv, num_cpus, i, bp_count, data);
}
offset = (num_cpus + 1) * (DPAA_STATS_PERCPU_LEN + 1);
memcpy(data + offset, &rx_errors, sizeof(struct dpaa_rx_errors));
offset += sizeof(struct dpaa_rx_errors) / sizeof(u64);
memcpy(data + offset, &ern_cnt, sizeof(struct dpaa_ern_cnt));
/* gather congestion related counters */
cg_num = 0;
cg_status = false;
cg_time = jiffies_to_msecs(priv->cgr_data.congested_jiffies);
if (qman_query_cgr_congested(&priv->cgr_data.cgr, &cg_status) == 0) {
cg_num = priv->cgr_data.cgr_congested_count;
/* reset congestion stats (like QMan API does */
priv->cgr_data.congested_jiffies = 0;
priv->cgr_data.cgr_congested_count = 0;
}
offset += sizeof(struct dpaa_ern_cnt) / sizeof(u64);
data[offset++] = cg_time;
data[offset++] = cg_num;
data[offset++] = cg_status;
}
static void dpaa_get_strings(struct net_device *net_dev, u32 stringset,
u8 *data)
{
unsigned int i, j, num_cpus, size;
char string_cpu[ETH_GSTRING_LEN];
u8 *strings;
memset(string_cpu, 0, sizeof(string_cpu));
strings = data;
num_cpus = num_online_cpus();
size = DPAA_STATS_GLOBAL_LEN * ETH_GSTRING_LEN;
for (i = 0; i < DPAA_STATS_PERCPU_LEN; i++) {
for (j = 0; j < num_cpus; j++) {
snprintf(string_cpu, ETH_GSTRING_LEN, "%s [CPU %d]",
dpaa_stats_percpu[i], j);
memcpy(strings, string_cpu, ETH_GSTRING_LEN);
strings += ETH_GSTRING_LEN;
}
snprintf(string_cpu, ETH_GSTRING_LEN, "%s [TOTAL]",
dpaa_stats_percpu[i]);
memcpy(strings, string_cpu, ETH_GSTRING_LEN);
strings += ETH_GSTRING_LEN;
}
for (j = 0; j < num_cpus; j++) {
snprintf(string_cpu, ETH_GSTRING_LEN,
"bpool [CPU %d]", j);
memcpy(strings, string_cpu, ETH_GSTRING_LEN);
strings += ETH_GSTRING_LEN;
}
snprintf(string_cpu, ETH_GSTRING_LEN, "bpool [TOTAL]");
memcpy(strings, string_cpu, ETH_GSTRING_LEN);
strings += ETH_GSTRING_LEN;
memcpy(strings, dpaa_stats_global, size);
}
static int dpaa_get_hash_opts(struct net_device *dev,
struct ethtool_rxnfc *cmd)
{
struct dpaa_priv *priv = netdev_priv(dev);
cmd->data = 0;
switch (cmd->flow_type) {
case TCP_V4_FLOW:
case TCP_V6_FLOW:
case UDP_V4_FLOW:
case UDP_V6_FLOW:
if (priv->keygen_in_use)
cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
fallthrough;
case IPV4_FLOW:
case IPV6_FLOW:
case SCTP_V4_FLOW:
case SCTP_V6_FLOW:
case AH_ESP_V4_FLOW:
case AH_ESP_V6_FLOW:
case AH_V4_FLOW:
case AH_V6_FLOW:
case ESP_V4_FLOW:
case ESP_V6_FLOW:
if (priv->keygen_in_use)
cmd->data |= RXH_IP_SRC | RXH_IP_DST;
break;
default:
cmd->data = 0;
break;
}
return 0;
}
static int dpaa_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
u32 *unused)
{
int ret = -EOPNOTSUPP;
switch (cmd->cmd) {
case ETHTOOL_GRXFH:
ret = dpaa_get_hash_opts(dev, cmd);
break;
default:
break;
}
return ret;
}
static void dpaa_set_hash(struct net_device *net_dev, bool enable)
{
struct mac_device *mac_dev;
struct fman_port *rxport;
struct dpaa_priv *priv;
priv = netdev_priv(net_dev);
mac_dev = priv->mac_dev;
rxport = mac_dev->port[0];
fman_port_use_kg_hash(rxport, enable);
priv->keygen_in_use = enable;
}
static int dpaa_set_hash_opts(struct net_device *dev,
struct ethtool_rxnfc *nfc)
{
int ret = -EINVAL;
/* we support hashing on IPv4/v6 src/dest IP and L4 src/dest port */
if (nfc->data &
~(RXH_IP_SRC | RXH_IP_DST | RXH_L4_B_0_1 | RXH_L4_B_2_3))
return -EINVAL;
switch (nfc->flow_type) {
case TCP_V4_FLOW:
case TCP_V6_FLOW:
case UDP_V4_FLOW:
case UDP_V6_FLOW:
case IPV4_FLOW:
case IPV6_FLOW:
case SCTP_V4_FLOW:
case SCTP_V6_FLOW:
case AH_ESP_V4_FLOW:
case AH_ESP_V6_FLOW:
case AH_V4_FLOW:
case AH_V6_FLOW:
case ESP_V4_FLOW:
case ESP_V6_FLOW:
dpaa_set_hash(dev, !!nfc->data);
ret = 0;
break;
default:
break;
}
return ret;
}
static int dpaa_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
{
int ret = -EOPNOTSUPP;
switch (cmd->cmd) {
case ETHTOOL_SRXFH:
ret = dpaa_set_hash_opts(dev, cmd);
break;
default:
break;
}
return ret;
}
static int dpaa_get_ts_info(struct net_device *net_dev,
struct kernel_ethtool_ts_info *info)
{
struct device *dev = net_dev->dev.parent;
struct device_node *mac_node = dev->of_node;
struct device_node *fman_node = NULL, *ptp_node = NULL;
struct platform_device *ptp_dev = NULL;
struct ptp_qoriq *ptp = NULL;
info->phc_index = -1;
fman_node = of_get_parent(mac_node);
if (fman_node) {
ptp_node = of_parse_phandle(fman_node, "ptimer-handle", 0);
of_node_put(fman_node);
}
if (ptp_node) {
ptp_dev = of_find_device_by_node(ptp_node);
of_node_put(ptp_node);
}
if (ptp_dev)
ptp = platform_get_drvdata(ptp_dev);
if (ptp)
info->phc_index = ptp->phc_index;
info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
SOF_TIMESTAMPING_RX_HARDWARE |
SOF_TIMESTAMPING_RAW_HARDWARE;
info->tx_types = (1 << HWTSTAMP_TX_OFF) |
(1 << HWTSTAMP_TX_ON);
info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
(1 << HWTSTAMP_FILTER_ALL);
return 0;
}
static int dpaa_get_coalesce(struct net_device *dev,
struct ethtool_coalesce *c,
struct kernel_ethtool_coalesce *kernel_coal,
struct netlink_ext_ack *extack)
{
struct qman_portal *portal;
u32 period;
u8 thresh;
portal = qman_get_affine_portal(smp_processor_id());
qman_portal_get_iperiod(portal, &period);
qman_dqrr_get_ithresh(portal, &thresh);
c->rx_coalesce_usecs = period;
c->rx_max_coalesced_frames = thresh;
return 0;
}
static int dpaa_set_coalesce(struct net_device *dev,
struct ethtool_coalesce *c,
struct kernel_ethtool_coalesce *kernel_coal,
struct netlink_ext_ack *extack)
{
const cpumask_t *cpus = qman_affine_cpus();
struct qman_portal *portal;
u32 period, prev_period;
u8 thresh, prev_thresh;
bool *needs_revert;
int cpu, res;
needs_revert = kcalloc(num_possible_cpus(), sizeof(bool), GFP_KERNEL);
if (!needs_revert)
return -ENOMEM;
period = c->rx_coalesce_usecs;
thresh = c->rx_max_coalesced_frames;
/* save previous values */
portal = qman_get_affine_portal(smp_processor_id());
qman_portal_get_iperiod(portal, &prev_period);
qman_dqrr_get_ithresh(portal, &prev_thresh);
/* set new values */
for_each_cpu_and(cpu, cpus, cpu_online_mask) {
portal = qman_get_affine_portal(cpu);
res = qman_portal_set_iperiod(portal, period);
if (res)
goto revert_values;
res = qman_dqrr_set_ithresh(portal, thresh);
if (res) {
qman_portal_set_iperiod(portal, prev_period);
goto revert_values;
}
needs_revert[cpu] = true;
}
kfree(needs_revert);
return 0;
revert_values:
/* restore previous values */
for_each_cpu_and(cpu, cpus, cpu_online_mask) {
if (!needs_revert[cpu])
continue;
portal = qman_get_affine_portal(cpu);
/* previous values will not fail, ignore return value */
qman_portal_set_iperiod(portal, prev_period);
qman_dqrr_set_ithresh(portal, prev_thresh);
}
kfree(needs_revert);
return res;
}
const struct ethtool_ops dpaa_ethtool_ops = {
.supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS |
ETHTOOL_COALESCE_RX_MAX_FRAMES,
.get_drvinfo = dpaa_get_drvinfo,
.get_msglevel = dpaa_get_msglevel,
.set_msglevel = dpaa_set_msglevel,
.nway_reset = dpaa_nway_reset,
.get_pauseparam = dpaa_get_pauseparam,
.set_pauseparam = dpaa_set_pauseparam,
.get_link = ethtool_op_get_link,
.get_sset_count = dpaa_get_sset_count,
.get_ethtool_stats = dpaa_get_ethtool_stats,
.get_strings = dpaa_get_strings,
.get_link_ksettings = dpaa_get_link_ksettings,
.set_link_ksettings = dpaa_set_link_ksettings,
.get_rxnfc = dpaa_get_rxnfc,
.set_rxnfc = dpaa_set_rxnfc,
.get_ts_info = dpaa_get_ts_info,
.get_coalesce = dpaa_get_coalesce,
.set_coalesce = dpaa_set_coalesce,
};
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