// SPDX-License-Identifier: GPL-2.0
/* Texas Instruments K3 AM65 Ethernet Switch SubSystem Driver ethtool ops
*
* Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
*
*/
#include <linux/net_tstamp.h>
#include <linux/phylink.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include "am65-cpsw-nuss.h"
#include "am65-cpsw-qos.h"
#include "cpsw_ale.h"
#include "am65-cpts.h"
#define AM65_CPSW_REGDUMP_VER 0x1
enum {
AM65_CPSW_REGDUMP_MOD_NUSS = 1,
AM65_CPSW_REGDUMP_MOD_RGMII_STATUS = 2,
AM65_CPSW_REGDUMP_MOD_MDIO = 3,
AM65_CPSW_REGDUMP_MOD_CPSW = 4,
AM65_CPSW_REGDUMP_MOD_CPSW_P0 = 5,
AM65_CPSW_REGDUMP_MOD_CPSW_P1 = 6,
AM65_CPSW_REGDUMP_MOD_CPSW_CPTS = 7,
AM65_CPSW_REGDUMP_MOD_CPSW_ALE = 8,
AM65_CPSW_REGDUMP_MOD_CPSW_ALE_TBL = 9,
AM65_CPSW_REGDUMP_MOD_LAST,
};
/**
* struct am65_cpsw_regdump_hdr - regdump record header
*
* @module_id: CPSW module ID
* @len: CPSW module registers space length in u32
*/
struct am65_cpsw_regdump_hdr {
u32 module_id;
u32 len;
};
/**
* struct am65_cpsw_regdump_item - regdump module description
*
* @hdr: CPSW module header
* @start_ofs: CPSW module registers start addr
* @end_ofs: CPSW module registers end addr
*
* Registers dump provided in the format:
* u32 : module ID
* u32 : dump length
* u32[..len]: registers values
*/
struct am65_cpsw_regdump_item {
struct am65_cpsw_regdump_hdr hdr;
u32 start_ofs;
u32 end_ofs;
};
#define AM65_CPSW_REGDUMP_REC(mod, start, end) { \
.hdr.module_id = (mod), \
.hdr.len = (end + 4 - start) * 2 + \
sizeof(struct am65_cpsw_regdump_hdr), \
.start_ofs = (start), \
.end_ofs = end, \
}
static const struct am65_cpsw_regdump_item am65_cpsw_regdump[] = {
AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_NUSS, 0x0, 0x1c),
AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_RGMII_STATUS, 0x30, 0x4c),
AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_MDIO, 0xf00, 0xffc),
AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_CPSW, 0x20000, 0x2011c),
AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_CPSW_P0, 0x21000, 0x21320),
AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_CPSW_P1, 0x22000, 0x223a4),
AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_CPSW_CPTS,
0x3d000, 0x3d048),
AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_CPSW_ALE, 0x3e000, 0x3e13c),
AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_CPSW_ALE_TBL, 0, 0),
};
struct am65_cpsw_stats_regs {
u32 rx_good_frames;
u32 rx_broadcast_frames;
u32 rx_multicast_frames;
u32 rx_pause_frames; /* slave */
u32 rx_crc_errors;
u32 rx_align_code_errors; /* slave */
u32 rx_oversized_frames;
u32 rx_jabber_frames; /* slave */
u32 rx_undersized_frames;
u32 rx_fragments; /* slave */
u32 ale_drop;
u32 ale_overrun_drop;
u32 rx_octets;
u32 tx_good_frames;
u32 tx_broadcast_frames;
u32 tx_multicast_frames;
u32 tx_pause_frames; /* slave */
u32 tx_deferred_frames; /* slave */
u32 tx_collision_frames; /* slave */
u32 tx_single_coll_frames; /* slave */
u32 tx_mult_coll_frames; /* slave */
u32 tx_excessive_collisions; /* slave */
u32 tx_late_collisions; /* slave */
u32 rx_ipg_error; /* slave 10G only */
u32 tx_carrier_sense_errors; /* slave */
u32 tx_octets;
u32 tx_64B_frames;
u32 tx_65_to_127B_frames;
u32 tx_128_to_255B_frames;
u32 tx_256_to_511B_frames;
u32 tx_512_to_1023B_frames;
u32 tx_1024B_frames;
u32 net_octets;
u32 rx_bottom_fifo_drop;
u32 rx_port_mask_drop;
u32 rx_top_fifo_drop;
u32 ale_rate_limit_drop;
u32 ale_vid_ingress_drop;
u32 ale_da_eq_sa_drop;
u32 ale_block_drop; /* K3 */
u32 ale_secure_drop; /* K3 */
u32 ale_auth_drop; /* K3 */
u32 ale_unknown_ucast;
u32 ale_unknown_ucast_bytes;
u32 ale_unknown_mcast;
u32 ale_unknown_mcast_bytes;
u32 ale_unknown_bcast;
u32 ale_unknown_bcast_bytes;
u32 ale_pol_match;
u32 ale_pol_match_red;
u32 ale_pol_match_yellow;
u32 ale_mcast_sa_drop; /* K3 */
u32 ale_dual_vlan_drop; /* K3 */
u32 ale_len_err_drop; /* K3 */
u32 ale_ip_next_hdr_drop; /* K3 */
u32 ale_ipv4_frag_drop; /* K3 */
u32 __rsvd_1[24];
u32 iet_rx_assembly_err; /* K3 slave */
u32 iet_rx_assembly_ok; /* K3 slave */
u32 iet_rx_smd_err; /* K3 slave */
u32 iet_rx_frag; /* K3 slave */
u32 iet_tx_hold; /* K3 slave */
u32 iet_tx_frag; /* K3 slave */
u32 __rsvd_2[9];
u32 tx_mem_protect_err;
/* following NU only */
u32 tx_pri0;
u32 tx_pri1;
u32 tx_pri2;
u32 tx_pri3;
u32 tx_pri4;
u32 tx_pri5;
u32 tx_pri6;
u32 tx_pri7;
u32 tx_pri0_bcnt;
u32 tx_pri1_bcnt;
u32 tx_pri2_bcnt;
u32 tx_pri3_bcnt;
u32 tx_pri4_bcnt;
u32 tx_pri5_bcnt;
u32 tx_pri6_bcnt;
u32 tx_pri7_bcnt;
u32 tx_pri0_drop;
u32 tx_pri1_drop;
u32 tx_pri2_drop;
u32 tx_pri3_drop;
u32 tx_pri4_drop;
u32 tx_pri5_drop;
u32 tx_pri6_drop;
u32 tx_pri7_drop;
u32 tx_pri0_drop_bcnt;
u32 tx_pri1_drop_bcnt;
u32 tx_pri2_drop_bcnt;
u32 tx_pri3_drop_bcnt;
u32 tx_pri4_drop_bcnt;
u32 tx_pri5_drop_bcnt;
u32 tx_pri6_drop_bcnt;
u32 tx_pri7_drop_bcnt;
};
struct am65_cpsw_ethtool_stat {
char desc[ETH_GSTRING_LEN];
int offset;
};
#define AM65_CPSW_STATS(prefix, field) \
{ \
#prefix#field, \
offsetof(struct am65_cpsw_stats_regs, field) \
}
static const struct am65_cpsw_ethtool_stat am65_host_stats[] = {
AM65_CPSW_STATS(p0_, rx_good_frames),
AM65_CPSW_STATS(p0_, rx_broadcast_frames),
AM65_CPSW_STATS(p0_, rx_multicast_frames),
AM65_CPSW_STATS(p0_, rx_crc_errors),
AM65_CPSW_STATS(p0_, rx_oversized_frames),
AM65_CPSW_STATS(p0_, rx_undersized_frames),
AM65_CPSW_STATS(p0_, ale_drop),
AM65_CPSW_STATS(p0_, ale_overrun_drop),
AM65_CPSW_STATS(p0_, rx_octets),
AM65_CPSW_STATS(p0_, tx_good_frames),
AM65_CPSW_STATS(p0_, tx_broadcast_frames),
AM65_CPSW_STATS(p0_, tx_multicast_frames),
AM65_CPSW_STATS(p0_, tx_octets),
AM65_CPSW_STATS(p0_, tx_64B_frames),
AM65_CPSW_STATS(p0_, tx_65_to_127B_frames),
AM65_CPSW_STATS(p0_, tx_128_to_255B_frames),
AM65_CPSW_STATS(p0_, tx_256_to_511B_frames),
AM65_CPSW_STATS(p0_, tx_512_to_1023B_frames),
AM65_CPSW_STATS(p0_, tx_1024B_frames),
AM65_CPSW_STATS(p0_, net_octets),
AM65_CPSW_STATS(p0_, rx_bottom_fifo_drop),
AM65_CPSW_STATS(p0_, rx_port_mask_drop),
AM65_CPSW_STATS(p0_, rx_top_fifo_drop),
AM65_CPSW_STATS(p0_, ale_rate_limit_drop),
AM65_CPSW_STATS(p0_, ale_vid_ingress_drop),
AM65_CPSW_STATS(p0_, ale_da_eq_sa_drop),
AM65_CPSW_STATS(p0_, ale_block_drop),
AM65_CPSW_STATS(p0_, ale_secure_drop),
AM65_CPSW_STATS(p0_, ale_auth_drop),
AM65_CPSW_STATS(p0_, ale_unknown_ucast),
AM65_CPSW_STATS(p0_, ale_unknown_ucast_bytes),
AM65_CPSW_STATS(p0_, ale_unknown_mcast),
AM65_CPSW_STATS(p0_, ale_unknown_mcast_bytes),
AM65_CPSW_STATS(p0_, ale_unknown_bcast),
AM65_CPSW_STATS(p0_, ale_unknown_bcast_bytes),
AM65_CPSW_STATS(p0_, ale_pol_match),
AM65_CPSW_STATS(p0_, ale_pol_match_red),
AM65_CPSW_STATS(p0_, ale_pol_match_yellow),
AM65_CPSW_STATS(p0_, ale_mcast_sa_drop),
AM65_CPSW_STATS(p0_, ale_dual_vlan_drop),
AM65_CPSW_STATS(p0_, ale_len_err_drop),
AM65_CPSW_STATS(p0_, ale_ip_next_hdr_drop),
AM65_CPSW_STATS(p0_, ale_ipv4_frag_drop),
AM65_CPSW_STATS(p0_, tx_mem_protect_err),
AM65_CPSW_STATS(p0_, tx_pri0),
AM65_CPSW_STATS(p0_, tx_pri1),
AM65_CPSW_STATS(p0_, tx_pri2),
AM65_CPSW_STATS(p0_, tx_pri3),
AM65_CPSW_STATS(p0_, tx_pri4),
AM65_CPSW_STATS(p0_, tx_pri5),
AM65_CPSW_STATS(p0_, tx_pri6),
AM65_CPSW_STATS(p0_, tx_pri7),
AM65_CPSW_STATS(p0_, tx_pri0_bcnt),
AM65_CPSW_STATS(p0_, tx_pri1_bcnt),
AM65_CPSW_STATS(p0_, tx_pri2_bcnt),
AM65_CPSW_STATS(p0_, tx_pri3_bcnt),
AM65_CPSW_STATS(p0_, tx_pri4_bcnt),
AM65_CPSW_STATS(p0_, tx_pri5_bcnt),
AM65_CPSW_STATS(p0_, tx_pri6_bcnt),
AM65_CPSW_STATS(p0_, tx_pri7_bcnt),
AM65_CPSW_STATS(p0_, tx_pri0_drop),
AM65_CPSW_STATS(p0_, tx_pri1_drop),
AM65_CPSW_STATS(p0_, tx_pri2_drop),
AM65_CPSW_STATS(p0_, tx_pri3_drop),
AM65_CPSW_STATS(p0_, tx_pri4_drop),
AM65_CPSW_STATS(p0_, tx_pri5_drop),
AM65_CPSW_STATS(p0_, tx_pri6_drop),
AM65_CPSW_STATS(p0_, tx_pri7_drop),
AM65_CPSW_STATS(p0_, tx_pri0_drop_bcnt),
AM65_CPSW_STATS(p0_, tx_pri1_drop_bcnt),
AM65_CPSW_STATS(p0_, tx_pri2_drop_bcnt),
AM65_CPSW_STATS(p0_, tx_pri3_drop_bcnt),
AM65_CPSW_STATS(p0_, tx_pri4_drop_bcnt),
AM65_CPSW_STATS(p0_, tx_pri5_drop_bcnt),
AM65_CPSW_STATS(p0_, tx_pri6_drop_bcnt),
AM65_CPSW_STATS(p0_, tx_pri7_drop_bcnt),
};
static const struct am65_cpsw_ethtool_stat am65_slave_stats[] = {
AM65_CPSW_STATS(, rx_good_frames),
AM65_CPSW_STATS(, rx_broadcast_frames),
AM65_CPSW_STATS(, rx_multicast_frames),
AM65_CPSW_STATS(, rx_pause_frames),
AM65_CPSW_STATS(, rx_crc_errors),
AM65_CPSW_STATS(, rx_align_code_errors),
AM65_CPSW_STATS(, rx_oversized_frames),
AM65_CPSW_STATS(, rx_jabber_frames),
AM65_CPSW_STATS(, rx_undersized_frames),
AM65_CPSW_STATS(, rx_fragments),
AM65_CPSW_STATS(, ale_drop),
AM65_CPSW_STATS(, ale_overrun_drop),
AM65_CPSW_STATS(, rx_octets),
AM65_CPSW_STATS(, tx_good_frames),
AM65_CPSW_STATS(, tx_broadcast_frames),
AM65_CPSW_STATS(, tx_multicast_frames),
AM65_CPSW_STATS(, tx_pause_frames),
AM65_CPSW_STATS(, tx_deferred_frames),
AM65_CPSW_STATS(, tx_collision_frames),
AM65_CPSW_STATS(, tx_single_coll_frames),
AM65_CPSW_STATS(, tx_mult_coll_frames),
AM65_CPSW_STATS(, tx_excessive_collisions),
AM65_CPSW_STATS(, tx_late_collisions),
AM65_CPSW_STATS(, rx_ipg_error),
AM65_CPSW_STATS(, tx_carrier_sense_errors),
AM65_CPSW_STATS(, tx_octets),
AM65_CPSW_STATS(, tx_64B_frames),
AM65_CPSW_STATS(, tx_65_to_127B_frames),
AM65_CPSW_STATS(, tx_128_to_255B_frames),
AM65_CPSW_STATS(, tx_256_to_511B_frames),
AM65_CPSW_STATS(, tx_512_to_1023B_frames),
AM65_CPSW_STATS(, tx_1024B_frames),
AM65_CPSW_STATS(, net_octets),
AM65_CPSW_STATS(, rx_bottom_fifo_drop),
AM65_CPSW_STATS(, rx_port_mask_drop),
AM65_CPSW_STATS(, rx_top_fifo_drop),
AM65_CPSW_STATS(, ale_rate_limit_drop),
AM65_CPSW_STATS(, ale_vid_ingress_drop),
AM65_CPSW_STATS(, ale_da_eq_sa_drop),
AM65_CPSW_STATS(, ale_block_drop),
AM65_CPSW_STATS(, ale_secure_drop),
AM65_CPSW_STATS(, ale_auth_drop),
AM65_CPSW_STATS(, ale_unknown_ucast),
AM65_CPSW_STATS(, ale_unknown_ucast_bytes),
AM65_CPSW_STATS(, ale_unknown_mcast),
AM65_CPSW_STATS(, ale_unknown_mcast_bytes),
AM65_CPSW_STATS(, ale_unknown_bcast),
AM65_CPSW_STATS(, ale_unknown_bcast_bytes),
AM65_CPSW_STATS(, ale_pol_match),
AM65_CPSW_STATS(, ale_pol_match_red),
AM65_CPSW_STATS(, ale_pol_match_yellow),
AM65_CPSW_STATS(, ale_mcast_sa_drop),
AM65_CPSW_STATS(, ale_dual_vlan_drop),
AM65_CPSW_STATS(, ale_len_err_drop),
AM65_CPSW_STATS(, ale_ip_next_hdr_drop),
AM65_CPSW_STATS(, ale_ipv4_frag_drop),
AM65_CPSW_STATS(, iet_rx_assembly_err),
AM65_CPSW_STATS(, iet_rx_assembly_ok),
AM65_CPSW_STATS(, iet_rx_smd_err),
AM65_CPSW_STATS(, iet_rx_frag),
AM65_CPSW_STATS(, iet_tx_hold),
AM65_CPSW_STATS(, iet_tx_frag),
AM65_CPSW_STATS(, tx_mem_protect_err),
AM65_CPSW_STATS(, tx_pri0),
AM65_CPSW_STATS(, tx_pri1),
AM65_CPSW_STATS(, tx_pri2),
AM65_CPSW_STATS(, tx_pri3),
AM65_CPSW_STATS(, tx_pri4),
AM65_CPSW_STATS(, tx_pri5),
AM65_CPSW_STATS(, tx_pri6),
AM65_CPSW_STATS(, tx_pri7),
AM65_CPSW_STATS(, tx_pri0_bcnt),
AM65_CPSW_STATS(, tx_pri1_bcnt),
AM65_CPSW_STATS(, tx_pri2_bcnt),
AM65_CPSW_STATS(, tx_pri3_bcnt),
AM65_CPSW_STATS(, tx_pri4_bcnt),
AM65_CPSW_STATS(, tx_pri5_bcnt),
AM65_CPSW_STATS(, tx_pri6_bcnt),
AM65_CPSW_STATS(, tx_pri7_bcnt),
AM65_CPSW_STATS(, tx_pri0_drop),
AM65_CPSW_STATS(, tx_pri1_drop),
AM65_CPSW_STATS(, tx_pri2_drop),
AM65_CPSW_STATS(, tx_pri3_drop),
AM65_CPSW_STATS(, tx_pri4_drop),
AM65_CPSW_STATS(, tx_pri5_drop),
AM65_CPSW_STATS(, tx_pri6_drop),
AM65_CPSW_STATS(, tx_pri7_drop),
AM65_CPSW_STATS(, tx_pri0_drop_bcnt),
AM65_CPSW_STATS(, tx_pri1_drop_bcnt),
AM65_CPSW_STATS(, tx_pri2_drop_bcnt),
AM65_CPSW_STATS(, tx_pri3_drop_bcnt),
AM65_CPSW_STATS(, tx_pri4_drop_bcnt),
AM65_CPSW_STATS(, tx_pri5_drop_bcnt),
AM65_CPSW_STATS(, tx_pri6_drop_bcnt),
AM65_CPSW_STATS(, tx_pri7_drop_bcnt),
};
/* Ethtool priv_flags */
static const char am65_cpsw_ethtool_priv_flags[][ETH_GSTRING_LEN] = {
#define AM65_CPSW_PRIV_P0_RX_PTYPE_RROBIN BIT(0)
"p0-rx-ptype-rrobin",
};
static int am65_cpsw_ethtool_op_begin(struct net_device *ndev)
{
struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
int ret;
ret = pm_runtime_resume_and_get(common->dev);
if (ret < 0)
dev_err(common->dev, "ethtool begin failed %d\n", ret);
return ret;
}
static void am65_cpsw_ethtool_op_complete(struct net_device *ndev)
{
struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
int ret;
ret = pm_runtime_put(common->dev);
if (ret < 0 && ret != -EBUSY)
dev_err(common->dev, "ethtool complete failed %d\n", ret);
}
static void am65_cpsw_get_drvinfo(struct net_device *ndev,
struct ethtool_drvinfo *info)
{
struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
strscpy(info->driver, dev_driver_string(common->dev),
sizeof(info->driver));
strscpy(info->bus_info, dev_name(common->dev), sizeof(info->bus_info));
}
static u32 am65_cpsw_get_msglevel(struct net_device *ndev)
{
struct am65_cpsw_ndev_priv *priv = am65_ndev_to_priv(ndev);
return priv->msg_enable;
}
static void am65_cpsw_set_msglevel(struct net_device *ndev, u32 value)
{
struct am65_cpsw_ndev_priv *priv = am65_ndev_to_priv(ndev);
priv->msg_enable = value;
}
static void am65_cpsw_get_channels(struct net_device *ndev,
struct ethtool_channels *ch)
{
struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
ch->max_rx = AM65_CPSW_MAX_RX_QUEUES;
ch->max_tx = AM65_CPSW_MAX_TX_QUEUES;
ch->rx_count = AM65_CPSW_MAX_RX_QUEUES;
ch->tx_count = common->tx_ch_num;
}
static int am65_cpsw_set_channels(struct net_device *ndev,
struct ethtool_channels *chs)
{
struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
if (!chs->rx_count || !chs->tx_count)
return -EINVAL;
/* Check if interface is up. Can change the num queues when
* the interface is down.
*/
if (common->usage_count)
return -EBUSY;
am65_cpsw_nuss_remove_tx_chns(common);
return am65_cpsw_nuss_update_tx_chns(common, chs->tx_count);
}
static void
am65_cpsw_get_ringparam(struct net_device *ndev,
struct ethtool_ringparam *ering,
struct kernel_ethtool_ringparam *kernel_ering,
struct netlink_ext_ack *extack)
{
struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
/* not supported */
ering->tx_pending = common->tx_chns[0].descs_num;
ering->rx_pending = common->rx_chns.descs_num;
}
static void am65_cpsw_get_pauseparam(struct net_device *ndev,
struct ethtool_pauseparam *pause)
{
struct am65_cpsw_slave_data *salve = am65_ndev_to_slave(ndev);
phylink_ethtool_get_pauseparam(salve->phylink, pause);
}
static int am65_cpsw_set_pauseparam(struct net_device *ndev,
struct ethtool_pauseparam *pause)
{
struct am65_cpsw_slave_data *salve = am65_ndev_to_slave(ndev);
return phylink_ethtool_set_pauseparam(salve->phylink, pause);
}
static void am65_cpsw_get_wol(struct net_device *ndev,
struct ethtool_wolinfo *wol)
{
struct am65_cpsw_slave_data *salve = am65_ndev_to_slave(ndev);
phylink_ethtool_get_wol(salve->phylink, wol);
}
static int am65_cpsw_set_wol(struct net_device *ndev,
struct ethtool_wolinfo *wol)
{
struct am65_cpsw_slave_data *salve = am65_ndev_to_slave(ndev);
return phylink_ethtool_set_wol(salve->phylink, wol);
}
static int am65_cpsw_get_link_ksettings(struct net_device *ndev,
struct ethtool_link_ksettings *ecmd)
{
struct am65_cpsw_slave_data *salve = am65_ndev_to_slave(ndev);
return phylink_ethtool_ksettings_get(salve->phylink, ecmd);
}
static int
am65_cpsw_set_link_ksettings(struct net_device *ndev,
const struct ethtool_link_ksettings *ecmd)
{
struct am65_cpsw_slave_data *salve = am65_ndev_to_slave(ndev);
return phylink_ethtool_ksettings_set(salve->phylink, ecmd);
}
static int am65_cpsw_get_eee(struct net_device *ndev, struct ethtool_keee *edata)
{
struct am65_cpsw_slave_data *salve = am65_ndev_to_slave(ndev);
return phylink_ethtool_get_eee(salve->phylink, edata);
}
static int am65_cpsw_set_eee(struct net_device *ndev, struct ethtool_keee *edata)
{
struct am65_cpsw_slave_data *salve = am65_ndev_to_slave(ndev);
return phylink_ethtool_set_eee(salve->phylink, edata);
}
static int am65_cpsw_nway_reset(struct net_device *ndev)
{
struct am65_cpsw_slave_data *salve = am65_ndev_to_slave(ndev);
return phylink_ethtool_nway_reset(salve->phylink);
}
static int am65_cpsw_get_regs_len(struct net_device *ndev)
{
struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
u32 ale_entries, i, regdump_len = 0;
ale_entries = cpsw_ale_get_num_entries(common->ale);
for (i = 0; i < ARRAY_SIZE(am65_cpsw_regdump); i++) {
if (am65_cpsw_regdump[i].hdr.module_id ==
AM65_CPSW_REGDUMP_MOD_CPSW_ALE_TBL) {
regdump_len += sizeof(struct am65_cpsw_regdump_hdr);
regdump_len += ale_entries *
ALE_ENTRY_WORDS * sizeof(u32);
continue;
}
regdump_len += am65_cpsw_regdump[i].hdr.len;
}
return regdump_len;
}
static void am65_cpsw_get_regs(struct net_device *ndev,
struct ethtool_regs *regs, void *p)
{
struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
u32 ale_entries, i, j, pos, *reg = p;
/* update CPSW IP version */
regs->version = AM65_CPSW_REGDUMP_VER;
ale_entries = cpsw_ale_get_num_entries(common->ale);
pos = 0;
for (i = 0; i < ARRAY_SIZE(am65_cpsw_regdump); i++) {
reg[pos++] = am65_cpsw_regdump[i].hdr.module_id;
if (am65_cpsw_regdump[i].hdr.module_id ==
AM65_CPSW_REGDUMP_MOD_CPSW_ALE_TBL) {
u32 ale_tbl_len = ale_entries *
ALE_ENTRY_WORDS * sizeof(u32) +
sizeof(struct am65_cpsw_regdump_hdr);
reg[pos++] = ale_tbl_len;
cpsw_ale_dump(common->ale, ®[pos]);
pos += ale_tbl_len;
continue;
}
reg[pos++] = am65_cpsw_regdump[i].hdr.len;
j = am65_cpsw_regdump[i].start_ofs;
do {
reg[pos++] = j;
reg[pos++] = readl_relaxed(common->ss_base + j);
j += sizeof(u32);
} while (j <= am65_cpsw_regdump[i].end_ofs);
}
}
static int am65_cpsw_get_sset_count(struct net_device *ndev, int sset)
{
switch (sset) {
case ETH_SS_STATS:
return ARRAY_SIZE(am65_host_stats) +
ARRAY_SIZE(am65_slave_stats);
case ETH_SS_PRIV_FLAGS:
return ARRAY_SIZE(am65_cpsw_ethtool_priv_flags);
default:
return -EOPNOTSUPP;
}
}
static void am65_cpsw_get_strings(struct net_device *ndev,
u32 stringset, u8 *data)
{
const struct am65_cpsw_ethtool_stat *hw_stats;
u32 i, num_stats;
u8 *p = data;
switch (stringset) {
case ETH_SS_STATS:
num_stats = ARRAY_SIZE(am65_host_stats);
hw_stats = am65_host_stats;
for (i = 0; i < num_stats; i++) {
memcpy(p, hw_stats[i].desc, ETH_GSTRING_LEN);
p += ETH_GSTRING_LEN;
}
num_stats = ARRAY_SIZE(am65_slave_stats);
hw_stats = am65_slave_stats;
for (i = 0; i < num_stats; i++) {
memcpy(p, hw_stats[i].desc, ETH_GSTRING_LEN);
p += ETH_GSTRING_LEN;
}
break;
case ETH_SS_PRIV_FLAGS:
num_stats = ARRAY_SIZE(am65_cpsw_ethtool_priv_flags);
for (i = 0; i < num_stats; i++) {
memcpy(p, am65_cpsw_ethtool_priv_flags[i],
ETH_GSTRING_LEN);
p += ETH_GSTRING_LEN;
}
break;
}
}
static void am65_cpsw_get_ethtool_stats(struct net_device *ndev,
struct ethtool_stats *stats, u64 *data)
{
struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
const struct am65_cpsw_ethtool_stat *hw_stats;
struct am65_cpsw_host *host_p;
struct am65_cpsw_port *port;
u32 i, num_stats;
host_p = am65_common_get_host(common);
port = am65_ndev_to_port(ndev);
num_stats = ARRAY_SIZE(am65_host_stats);
hw_stats = am65_host_stats;
for (i = 0; i < num_stats; i++)
*data++ = readl_relaxed(host_p->stat_base +
hw_stats[i].offset);
num_stats = ARRAY_SIZE(am65_slave_stats);
hw_stats = am65_slave_stats;
for (i = 0; i < num_stats; i++)
*data++ = readl_relaxed(port->stat_base +
hw_stats[i].offset);
}
static void am65_cpsw_get_eth_mac_stats(struct net_device *ndev,
struct ethtool_eth_mac_stats *s)
{
struct am65_cpsw_port *port = am65_ndev_to_port(ndev);
struct am65_cpsw_stats_regs __iomem *stats;
stats = port->stat_base;
if (s->src != ETHTOOL_MAC_STATS_SRC_AGGREGATE)
return;
s->FramesTransmittedOK = readl_relaxed(&stats->tx_good_frames);
s->SingleCollisionFrames = readl_relaxed(&stats->tx_single_coll_frames);
s->MultipleCollisionFrames = readl_relaxed(&stats->tx_mult_coll_frames);
s->FramesReceivedOK = readl_relaxed(&stats->rx_good_frames);
s->FrameCheckSequenceErrors = readl_relaxed(&stats->rx_crc_errors);
s->AlignmentErrors = readl_relaxed(&stats->rx_align_code_errors);
s->OctetsTransmittedOK = readl_relaxed(&stats->tx_octets);
s->FramesWithDeferredXmissions = readl_relaxed(&stats->tx_deferred_frames);
s->LateCollisions = readl_relaxed(&stats->tx_late_collisions);
s->CarrierSenseErrors = readl_relaxed(&stats->tx_carrier_sense_errors);
s->OctetsReceivedOK = readl_relaxed(&stats->rx_octets);
s->MulticastFramesXmittedOK = readl_relaxed(&stats->tx_multicast_frames);
s->BroadcastFramesXmittedOK = readl_relaxed(&stats->tx_broadcast_frames);
s->MulticastFramesReceivedOK = readl_relaxed(&stats->rx_multicast_frames);
s->BroadcastFramesReceivedOK = readl_relaxed(&stats->rx_broadcast_frames);
};
static int am65_cpsw_get_ethtool_ts_info(struct net_device *ndev,
struct ethtool_ts_info *info)
{
struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
if (!IS_ENABLED(CONFIG_TI_K3_AM65_CPTS))
return ethtool_op_get_ts_info(ndev, info);
info->so_timestamping =
SOF_TIMESTAMPING_TX_HARDWARE |
SOF_TIMESTAMPING_TX_SOFTWARE |
SOF_TIMESTAMPING_RX_HARDWARE |
SOF_TIMESTAMPING_RX_SOFTWARE |
SOF_TIMESTAMPING_SOFTWARE |
SOF_TIMESTAMPING_RAW_HARDWARE;
info->phc_index = am65_cpts_phc_index(common->cpts);
info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | BIT(HWTSTAMP_FILTER_ALL);
return 0;
}
static u32 am65_cpsw_get_ethtool_priv_flags(struct net_device *ndev)
{
struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
u32 priv_flags = 0;
if (common->pf_p0_rx_ptype_rrobin)
priv_flags |= AM65_CPSW_PRIV_P0_RX_PTYPE_RROBIN;
return priv_flags;
}
static int am65_cpsw_set_ethtool_priv_flags(struct net_device *ndev, u32 flags)
{
struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
int rrobin;
rrobin = !!(flags & AM65_CPSW_PRIV_P0_RX_PTYPE_RROBIN);
if (common->usage_count)
return -EBUSY;
if (common->est_enabled && rrobin) {
netdev_err(ndev,
"p0-rx-ptype-rrobin flag conflicts with QOS\n");
return -EINVAL;
}
common->pf_p0_rx_ptype_rrobin = rrobin;
return 0;
}
static void am65_cpsw_port_iet_rx_enable(struct am65_cpsw_port *port, bool enable)
{
u32 val;
val = readl(port->port_base + AM65_CPSW_PN_REG_CTL);
if (enable)
val |= AM65_CPSW_PN_CTL_IET_PORT_EN;
else
val &= ~AM65_CPSW_PN_CTL_IET_PORT_EN;
writel(val, port->port_base + AM65_CPSW_PN_REG_CTL);
am65_cpsw_iet_common_enable(port->common);
}
static void am65_cpsw_port_iet_tx_enable(struct am65_cpsw_port *port, bool enable)
{
u32 val;
val = readl(port->port_base + AM65_CPSW_PN_REG_IET_CTRL);
if (enable)
val |= AM65_CPSW_PN_IET_MAC_PENABLE;
else
val &= ~AM65_CPSW_PN_IET_MAC_PENABLE;
writel(val, port->port_base + AM65_CPSW_PN_REG_IET_CTRL);
}
static int am65_cpsw_get_mm(struct net_device *ndev, struct ethtool_mm_state *state)
{
struct am65_cpsw_port *port = am65_ndev_to_port(ndev);
struct am65_cpsw_ndev_priv *priv = netdev_priv(ndev);
u32 port_ctrl, iet_ctrl, iet_status;
u32 add_frag_size;
if (!IS_ENABLED(CONFIG_TI_AM65_CPSW_QOS))
return -EOPNOTSUPP;
mutex_lock(&priv->mm_lock);
iet_ctrl = readl(port->port_base + AM65_CPSW_PN_REG_IET_CTRL);
port_ctrl = readl(port->port_base + AM65_CPSW_PN_REG_CTL);
state->tx_enabled = !!(iet_ctrl & AM65_CPSW_PN_IET_MAC_PENABLE);
state->pmac_enabled = !!(port_ctrl & AM65_CPSW_PN_CTL_IET_PORT_EN);
iet_status = readl(port->port_base + AM65_CPSW_PN_REG_IET_STATUS);
if (iet_ctrl & AM65_CPSW_PN_IET_MAC_DISABLEVERIFY)
state->verify_status = ETHTOOL_MM_VERIFY_STATUS_DISABLED;
else if (iet_status & AM65_CPSW_PN_MAC_VERIFIED)
state->verify_status = ETHTOOL_MM_VERIFY_STATUS_SUCCEEDED;
else if (iet_status & AM65_CPSW_PN_MAC_VERIFY_FAIL)
state->verify_status = ETHTOOL_MM_VERIFY_STATUS_FAILED;
else
state->verify_status = ETHTOOL_MM_VERIFY_STATUS_UNKNOWN;
add_frag_size = AM65_CPSW_PN_IET_MAC_GET_ADDFRAGSIZE(iet_ctrl);
state->tx_min_frag_size = ethtool_mm_frag_size_add_to_min(add_frag_size);
/* Errata i2208: RX min fragment size cannot be less than 124 */
state->rx_min_frag_size = 124;
/* FPE active if common tx_enabled and verification success or disabled (forced) */
state->tx_active = state->tx_enabled &&
(state->verify_status == ETHTOOL_MM_VERIFY_STATUS_SUCCEEDED ||
state->verify_status == ETHTOOL_MM_VERIFY_STATUS_DISABLED);
state->verify_enabled = !(iet_ctrl & AM65_CPSW_PN_IET_MAC_DISABLEVERIFY);
state->verify_time = port->qos.iet.verify_time_ms;
/* 802.3-2018 clause 30.14.1.6, says that the aMACMergeVerifyTime
* variable has a range between 1 and 128 ms inclusive. Limit to that.
*/
state->max_verify_time = 128;
mutex_unlock(&priv->mm_lock);
return 0;
}
static int am65_cpsw_set_mm(struct net_device *ndev, struct ethtool_mm_cfg *cfg,
struct netlink_ext_ack *extack)
{
struct am65_cpsw_port *port = am65_ndev_to_port(ndev);
struct am65_cpsw_ndev_priv *priv = netdev_priv(ndev);
struct am65_cpsw_iet *iet = &port->qos.iet;
u32 val, add_frag_size;
int err;
if (!IS_ENABLED(CONFIG_TI_AM65_CPSW_QOS))
return -EOPNOTSUPP;
err = ethtool_mm_frag_size_min_to_add(cfg->tx_min_frag_size, &add_frag_size, extack);
if (err)
return err;
mutex_lock(&priv->mm_lock);
if (cfg->pmac_enabled) {
/* change TX & RX FIFO MAX_BLKS as per TRM recommendation */
if (!iet->original_max_blks)
iet->original_max_blks = readl(port->port_base + AM65_CPSW_PN_REG_MAX_BLKS);
writel(AM65_CPSW_PN_TX_RX_MAX_BLKS_IET,
port->port_base + AM65_CPSW_PN_REG_MAX_BLKS);
} else if (iet->original_max_blks) {
/* restore RX & TX FIFO MAX_BLKS */
writel(iet->original_max_blks,
port->port_base + AM65_CPSW_PN_REG_MAX_BLKS);
}
am65_cpsw_port_iet_rx_enable(port, cfg->pmac_enabled);
am65_cpsw_port_iet_tx_enable(port, cfg->tx_enabled);
val = readl(port->port_base + AM65_CPSW_PN_REG_IET_CTRL);
if (cfg->verify_enabled) {
val &= ~AM65_CPSW_PN_IET_MAC_DISABLEVERIFY;
/* Reset Verify state machine. Verification won't start here.
* Verification will be done once link-up.
*/
val |= AM65_CPSW_PN_IET_MAC_LINKFAIL;
} else {
val |= AM65_CPSW_PN_IET_MAC_DISABLEVERIFY;
/* Clear LINKFAIL to allow verify/response packets */
val &= ~AM65_CPSW_PN_IET_MAC_LINKFAIL;
}
val &= ~AM65_CPSW_PN_IET_MAC_MAC_ADDFRAGSIZE_MASK;
val |= AM65_CPSW_PN_IET_MAC_SET_ADDFRAGSIZE(add_frag_size);
writel(val, port->port_base + AM65_CPSW_PN_REG_IET_CTRL);
/* verify_timeout_count can only be set at valid link */
port->qos.iet.verify_time_ms = cfg->verify_time;
/* enable/disable preemption based on link status */
am65_cpsw_iet_commit_preemptible_tcs(port);
mutex_unlock(&priv->mm_lock);
return 0;
}
static void am65_cpsw_get_mm_stats(struct net_device *ndev,
struct ethtool_mm_stats *s)
{
struct am65_cpsw_port *port = am65_ndev_to_port(ndev);
void __iomem *base = port->stat_base;
s->MACMergeFrameAssOkCount = readl(base + AM65_CPSW_STATN_IET_RX_ASSEMBLY_OK);
s->MACMergeFrameAssErrorCount = readl(base + AM65_CPSW_STATN_IET_RX_ASSEMBLY_ERROR);
s->MACMergeFrameSmdErrorCount = readl(base + AM65_CPSW_STATN_IET_RX_SMD_ERROR);
/* CPSW Functional Spec states:
* "The IET stat aMACMergeFragCountRx is derived by adding the
* Receive Assembly Error count to this value. i.e. AM65_CPSW_STATN_IET_RX_FRAG"
*/
s->MACMergeFragCountRx = readl(base + AM65_CPSW_STATN_IET_RX_FRAG) + s->MACMergeFrameAssErrorCount;
s->MACMergeFragCountTx = readl(base + AM65_CPSW_STATN_IET_TX_FRAG);
s->MACMergeHoldCount = readl(base + AM65_CPSW_STATN_IET_TX_HOLD);
}
static int am65_cpsw_get_coalesce(struct net_device *ndev, struct ethtool_coalesce *coal,
struct kernel_ethtool_coalesce *kernel_coal,
struct netlink_ext_ack *extack)
{
struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
struct am65_cpsw_tx_chn *tx_chn;
tx_chn = &common->tx_chns[0];
coal->rx_coalesce_usecs = common->rx_pace_timeout / 1000;
coal->tx_coalesce_usecs = tx_chn->tx_pace_timeout / 1000;
return 0;
}
static int am65_cpsw_get_per_queue_coalesce(struct net_device *ndev, u32 queue,
struct ethtool_coalesce *coal)
{
struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
struct am65_cpsw_tx_chn *tx_chn;
if (queue >= AM65_CPSW_MAX_TX_QUEUES)
return -EINVAL;
tx_chn = &common->tx_chns[queue];
coal->tx_coalesce_usecs = tx_chn->tx_pace_timeout / 1000;
return 0;
}
static int am65_cpsw_set_coalesce(struct net_device *ndev, struct ethtool_coalesce *coal,
struct kernel_ethtool_coalesce *kernel_coal,
struct netlink_ext_ack *extack)
{
struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
struct am65_cpsw_tx_chn *tx_chn;
tx_chn = &common->tx_chns[0];
if (coal->rx_coalesce_usecs && coal->rx_coalesce_usecs < 20)
return -EINVAL;
if (coal->tx_coalesce_usecs && coal->tx_coalesce_usecs < 20)
return -EINVAL;
common->rx_pace_timeout = coal->rx_coalesce_usecs * 1000;
tx_chn->tx_pace_timeout = coal->tx_coalesce_usecs * 1000;
return 0;
}
static int am65_cpsw_set_per_queue_coalesce(struct net_device *ndev, u32 queue,
struct ethtool_coalesce *coal)
{
struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
struct am65_cpsw_tx_chn *tx_chn;
if (queue >= AM65_CPSW_MAX_TX_QUEUES)
return -EINVAL;
tx_chn = &common->tx_chns[queue];
if (coal->tx_coalesce_usecs && coal->tx_coalesce_usecs < 20) {
dev_info(common->dev, "defaulting to min value of 20us for tx-usecs for tx-%u\n",
queue);
coal->tx_coalesce_usecs = 20;
}
tx_chn->tx_pace_timeout = coal->tx_coalesce_usecs * 1000;
return 0;
}
const struct ethtool_ops am65_cpsw_ethtool_ops_slave = {
.begin = am65_cpsw_ethtool_op_begin,
.complete = am65_cpsw_ethtool_op_complete,
.get_drvinfo = am65_cpsw_get_drvinfo,
.get_msglevel = am65_cpsw_get_msglevel,
.set_msglevel = am65_cpsw_set_msglevel,
.get_channels = am65_cpsw_get_channels,
.set_channels = am65_cpsw_set_channels,
.get_ringparam = am65_cpsw_get_ringparam,
.get_regs_len = am65_cpsw_get_regs_len,
.get_regs = am65_cpsw_get_regs,
.get_sset_count = am65_cpsw_get_sset_count,
.get_strings = am65_cpsw_get_strings,
.get_ethtool_stats = am65_cpsw_get_ethtool_stats,
.get_eth_mac_stats = am65_cpsw_get_eth_mac_stats,
.get_ts_info = am65_cpsw_get_ethtool_ts_info,
.get_priv_flags = am65_cpsw_get_ethtool_priv_flags,
.set_priv_flags = am65_cpsw_set_ethtool_priv_flags,
.supported_coalesce_params = ETHTOOL_COALESCE_USECS,
.get_coalesce = am65_cpsw_get_coalesce,
.set_coalesce = am65_cpsw_set_coalesce,
.get_per_queue_coalesce = am65_cpsw_get_per_queue_coalesce,
.set_per_queue_coalesce = am65_cpsw_set_per_queue_coalesce,
.get_link = ethtool_op_get_link,
.get_link_ksettings = am65_cpsw_get_link_ksettings,
.set_link_ksettings = am65_cpsw_set_link_ksettings,
.get_pauseparam = am65_cpsw_get_pauseparam,
.set_pauseparam = am65_cpsw_set_pauseparam,
.get_wol = am65_cpsw_get_wol,
.set_wol = am65_cpsw_set_wol,
.get_eee = am65_cpsw_get_eee,
.set_eee = am65_cpsw_set_eee,
.nway_reset = am65_cpsw_nway_reset,
.get_mm = am65_cpsw_get_mm,
.set_mm = am65_cpsw_set_mm,
.get_mm_stats = am65_cpsw_get_mm_stats,
};
