blob: 3ee236c5fc37ca8ad4d699c7d6a0cc2ed64decae [file] [log] [blame]
// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
/* Copyright 2019 NXP */
#include "dpaa2-eth.h"
#include "dpaa2-mac.h"
#define phylink_to_dpaa2_mac(config) \
container_of((config), struct dpaa2_mac, phylink_config)
static int phy_mode(enum dpmac_eth_if eth_if, phy_interface_t *if_mode)
{
*if_mode = PHY_INTERFACE_MODE_NA;
switch (eth_if) {
case DPMAC_ETH_IF_RGMII:
*if_mode = PHY_INTERFACE_MODE_RGMII;
break;
default:
return -EINVAL;
}
return 0;
}
/* Caller must call of_node_put on the returned value */
static struct device_node *dpaa2_mac_get_node(u16 dpmac_id)
{
struct device_node *dpmacs, *dpmac = NULL;
u32 id;
int err;
dpmacs = of_find_node_by_name(NULL, "dpmacs");
if (!dpmacs)
return NULL;
while ((dpmac = of_get_next_child(dpmacs, dpmac)) != NULL) {
err = of_property_read_u32(dpmac, "reg", &id);
if (err)
continue;
if (id == dpmac_id)
break;
}
of_node_put(dpmacs);
return dpmac;
}
static int dpaa2_mac_get_if_mode(struct device_node *node,
struct dpmac_attr attr)
{
phy_interface_t if_mode;
int err;
err = of_get_phy_mode(node, &if_mode);
if (!err)
return if_mode;
err = phy_mode(attr.eth_if, &if_mode);
if (!err)
return if_mode;
return err;
}
static bool dpaa2_mac_phy_mode_mismatch(struct dpaa2_mac *mac,
phy_interface_t interface)
{
switch (interface) {
case PHY_INTERFACE_MODE_RGMII:
case PHY_INTERFACE_MODE_RGMII_ID:
case PHY_INTERFACE_MODE_RGMII_RXID:
case PHY_INTERFACE_MODE_RGMII_TXID:
return (interface != mac->if_mode);
default:
return true;
}
}
static void dpaa2_mac_validate(struct phylink_config *config,
unsigned long *supported,
struct phylink_link_state *state)
{
struct dpaa2_mac *mac = phylink_to_dpaa2_mac(config);
__ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
if (state->interface != PHY_INTERFACE_MODE_NA &&
dpaa2_mac_phy_mode_mismatch(mac, state->interface)) {
goto empty_set;
}
phylink_set_port_modes(mask);
phylink_set(mask, Autoneg);
phylink_set(mask, Pause);
phylink_set(mask, Asym_Pause);
switch (state->interface) {
case PHY_INTERFACE_MODE_RGMII:
case PHY_INTERFACE_MODE_RGMII_ID:
case PHY_INTERFACE_MODE_RGMII_RXID:
case PHY_INTERFACE_MODE_RGMII_TXID:
phylink_set(mask, 10baseT_Full);
phylink_set(mask, 100baseT_Full);
phylink_set(mask, 1000baseT_Full);
break;
default:
goto empty_set;
}
linkmode_and(supported, supported, mask);
linkmode_and(state->advertising, state->advertising, mask);
return;
empty_set:
linkmode_zero(supported);
}
static void dpaa2_mac_config(struct phylink_config *config, unsigned int mode,
const struct phylink_link_state *state)
{
struct dpaa2_mac *mac = phylink_to_dpaa2_mac(config);
struct dpmac_link_state *dpmac_state = &mac->state;
int err;
if (state->an_enabled)
dpmac_state->options |= DPMAC_LINK_OPT_AUTONEG;
else
dpmac_state->options &= ~DPMAC_LINK_OPT_AUTONEG;
err = dpmac_set_link_state(mac->mc_io, 0,
mac->mc_dev->mc_handle, dpmac_state);
if (err)
netdev_err(mac->net_dev, "%s: dpmac_set_link_state() = %d\n",
__func__, err);
}
static void dpaa2_mac_link_up(struct phylink_config *config,
struct phy_device *phy,
unsigned int mode, phy_interface_t interface,
int speed, int duplex,
bool tx_pause, bool rx_pause)
{
struct dpaa2_mac *mac = phylink_to_dpaa2_mac(config);
struct dpmac_link_state *dpmac_state = &mac->state;
int err;
dpmac_state->up = 1;
if (mac->if_link_type == DPMAC_LINK_TYPE_PHY) {
/* If the DPMAC is configured for PHY mode, we need
* to pass the link parameters to the MC firmware.
*/
dpmac_state->rate = speed;
if (duplex == DUPLEX_HALF)
dpmac_state->options |= DPMAC_LINK_OPT_HALF_DUPLEX;
else if (duplex == DUPLEX_FULL)
dpmac_state->options &= ~DPMAC_LINK_OPT_HALF_DUPLEX;
/* This is lossy; the firmware really should take the pause
* enablement status rather than pause/asym pause status.
*/
if (rx_pause)
dpmac_state->options |= DPMAC_LINK_OPT_PAUSE;
else
dpmac_state->options &= ~DPMAC_LINK_OPT_PAUSE;
if (rx_pause ^ tx_pause)
dpmac_state->options |= DPMAC_LINK_OPT_ASYM_PAUSE;
else
dpmac_state->options &= ~DPMAC_LINK_OPT_ASYM_PAUSE;
}
err = dpmac_set_link_state(mac->mc_io, 0,
mac->mc_dev->mc_handle, dpmac_state);
if (err)
netdev_err(mac->net_dev, "%s: dpmac_set_link_state() = %d\n",
__func__, err);
}
static void dpaa2_mac_link_down(struct phylink_config *config,
unsigned int mode,
phy_interface_t interface)
{
struct dpaa2_mac *mac = phylink_to_dpaa2_mac(config);
struct dpmac_link_state *dpmac_state = &mac->state;
int err;
dpmac_state->up = 0;
err = dpmac_set_link_state(mac->mc_io, 0,
mac->mc_dev->mc_handle, dpmac_state);
if (err)
netdev_err(mac->net_dev, "dpmac_set_link_state() = %d\n", err);
}
static const struct phylink_mac_ops dpaa2_mac_phylink_ops = {
.validate = dpaa2_mac_validate,
.mac_config = dpaa2_mac_config,
.mac_link_up = dpaa2_mac_link_up,
.mac_link_down = dpaa2_mac_link_down,
};
bool dpaa2_mac_is_type_fixed(struct fsl_mc_device *dpmac_dev,
struct fsl_mc_io *mc_io)
{
struct dpmac_attr attr;
bool fixed = false;
u16 mc_handle = 0;
int err;
err = dpmac_open(mc_io, 0, dpmac_dev->obj_desc.id,
&mc_handle);
if (err || !mc_handle)
return false;
err = dpmac_get_attributes(mc_io, 0, mc_handle, &attr);
if (err)
goto out;
if (attr.link_type == DPMAC_LINK_TYPE_FIXED)
fixed = true;
out:
dpmac_close(mc_io, 0, mc_handle);
return fixed;
}
int dpaa2_mac_connect(struct dpaa2_mac *mac)
{
struct fsl_mc_device *dpmac_dev = mac->mc_dev;
struct net_device *net_dev = mac->net_dev;
struct device_node *dpmac_node;
struct phylink *phylink;
struct dpmac_attr attr;
int err;
err = dpmac_open(mac->mc_io, 0, dpmac_dev->obj_desc.id,
&dpmac_dev->mc_handle);
if (err || !dpmac_dev->mc_handle) {
netdev_err(net_dev, "dpmac_open() = %d\n", err);
return -ENODEV;
}
err = dpmac_get_attributes(mac->mc_io, 0, dpmac_dev->mc_handle, &attr);
if (err) {
netdev_err(net_dev, "dpmac_get_attributes() = %d\n", err);
goto err_close_dpmac;
}
mac->if_link_type = attr.link_type;
dpmac_node = dpaa2_mac_get_node(attr.id);
if (!dpmac_node) {
netdev_err(net_dev, "No dpmac@%d node found.\n", attr.id);
err = -ENODEV;
goto err_close_dpmac;
}
err = dpaa2_mac_get_if_mode(dpmac_node, attr);
if (err < 0) {
err = -EINVAL;
goto err_put_node;
}
mac->if_mode = err;
/* The MAC does not have the capability to add RGMII delays so
* error out if the interface mode requests them and there is no PHY
* to act upon them
*/
if (of_phy_is_fixed_link(dpmac_node) &&
(mac->if_mode == PHY_INTERFACE_MODE_RGMII_ID ||
mac->if_mode == PHY_INTERFACE_MODE_RGMII_RXID ||
mac->if_mode == PHY_INTERFACE_MODE_RGMII_TXID)) {
netdev_err(net_dev, "RGMII delay not supported\n");
err = -EINVAL;
goto err_put_node;
}
mac->phylink_config.dev = &net_dev->dev;
mac->phylink_config.type = PHYLINK_NETDEV;
phylink = phylink_create(&mac->phylink_config,
of_fwnode_handle(dpmac_node), mac->if_mode,
&dpaa2_mac_phylink_ops);
if (IS_ERR(phylink)) {
err = PTR_ERR(phylink);
goto err_put_node;
}
mac->phylink = phylink;
err = phylink_of_phy_connect(mac->phylink, dpmac_node, 0);
if (err) {
netdev_err(net_dev, "phylink_of_phy_connect() = %d\n", err);
goto err_phylink_destroy;
}
of_node_put(dpmac_node);
return 0;
err_phylink_destroy:
phylink_destroy(mac->phylink);
err_put_node:
of_node_put(dpmac_node);
err_close_dpmac:
dpmac_close(mac->mc_io, 0, dpmac_dev->mc_handle);
return err;
}
void dpaa2_mac_disconnect(struct dpaa2_mac *mac)
{
if (!mac->phylink)
return;
phylink_disconnect_phy(mac->phylink);
phylink_destroy(mac->phylink);
dpmac_close(mac->mc_io, 0, mac->mc_dev->mc_handle);
}
static char dpaa2_mac_ethtool_stats[][ETH_GSTRING_LEN] = {
[DPMAC_CNT_ING_ALL_FRAME] = "[mac] rx all frames",
[DPMAC_CNT_ING_GOOD_FRAME] = "[mac] rx frames ok",
[DPMAC_CNT_ING_ERR_FRAME] = "[mac] rx frame errors",
[DPMAC_CNT_ING_FRAME_DISCARD] = "[mac] rx frame discards",
[DPMAC_CNT_ING_UCAST_FRAME] = "[mac] rx u-cast",
[DPMAC_CNT_ING_BCAST_FRAME] = "[mac] rx b-cast",
[DPMAC_CNT_ING_MCAST_FRAME] = "[mac] rx m-cast",
[DPMAC_CNT_ING_FRAME_64] = "[mac] rx 64 bytes",
[DPMAC_CNT_ING_FRAME_127] = "[mac] rx 65-127 bytes",
[DPMAC_CNT_ING_FRAME_255] = "[mac] rx 128-255 bytes",
[DPMAC_CNT_ING_FRAME_511] = "[mac] rx 256-511 bytes",
[DPMAC_CNT_ING_FRAME_1023] = "[mac] rx 512-1023 bytes",
[DPMAC_CNT_ING_FRAME_1518] = "[mac] rx 1024-1518 bytes",
[DPMAC_CNT_ING_FRAME_1519_MAX] = "[mac] rx 1519-max bytes",
[DPMAC_CNT_ING_FRAG] = "[mac] rx frags",
[DPMAC_CNT_ING_JABBER] = "[mac] rx jabber",
[DPMAC_CNT_ING_ALIGN_ERR] = "[mac] rx align errors",
[DPMAC_CNT_ING_OVERSIZED] = "[mac] rx oversized",
[DPMAC_CNT_ING_VALID_PAUSE_FRAME] = "[mac] rx pause",
[DPMAC_CNT_ING_BYTE] = "[mac] rx bytes",
[DPMAC_CNT_EGR_GOOD_FRAME] = "[mac] tx frames ok",
[DPMAC_CNT_EGR_UCAST_FRAME] = "[mac] tx u-cast",
[DPMAC_CNT_EGR_MCAST_FRAME] = "[mac] tx m-cast",
[DPMAC_CNT_EGR_BCAST_FRAME] = "[mac] tx b-cast",
[DPMAC_CNT_EGR_ERR_FRAME] = "[mac] tx frame errors",
[DPMAC_CNT_EGR_UNDERSIZED] = "[mac] tx undersized",
[DPMAC_CNT_EGR_VALID_PAUSE_FRAME] = "[mac] tx b-pause",
[DPMAC_CNT_EGR_BYTE] = "[mac] tx bytes",
};
#define DPAA2_MAC_NUM_STATS ARRAY_SIZE(dpaa2_mac_ethtool_stats)
int dpaa2_mac_get_sset_count(void)
{
return DPAA2_MAC_NUM_STATS;
}
void dpaa2_mac_get_strings(u8 *data)
{
u8 *p = data;
int i;
for (i = 0; i < DPAA2_MAC_NUM_STATS; i++) {
strlcpy(p, dpaa2_mac_ethtool_stats[i], ETH_GSTRING_LEN);
p += ETH_GSTRING_LEN;
}
}
void dpaa2_mac_get_ethtool_stats(struct dpaa2_mac *mac, u64 *data)
{
struct fsl_mc_device *dpmac_dev = mac->mc_dev;
int i, err;
u64 value;
for (i = 0; i < DPAA2_MAC_NUM_STATS; i++) {
err = dpmac_get_counter(mac->mc_io, 0, dpmac_dev->mc_handle,
i, &value);
if (err) {
netdev_err_once(mac->net_dev,
"dpmac_get_counter error %d\n", err);
*(data + i) = U64_MAX;
continue;
}
*(data + i) = value;
}
}