// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
/* Copyright (C) 2015-2018 Netronome Systems, Inc. */
/*
* nfp_net_ethtool.c
* Netronome network device driver: ethtool support
* Authors: Jakub Kicinski <[email protected]>
* Jason McMullan <[email protected]>
* Rolf Neugebauer <[email protected]>
* Brad Petrus <[email protected]>
*/
#include <linux/bitfield.h>
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/ethtool.h>
#include <linux/firmware.h>
#include <linux/sfp.h>
#include "nfpcore/nfp.h"
#include "nfpcore/nfp_dev.h"
#include "nfpcore/nfp_nsp.h"
#include "nfp_app.h"
#include "nfp_main.h"
#include "nfp_net_ctrl.h"
#include "nfp_net_dp.h"
#include "nfp_net.h"
#include "nfp_port.h"
#include "nfpcore/nfp_cpp.h"
struct nfp_et_stat {
char name[ETH_GSTRING_LEN];
int off;
};
static const struct nfp_et_stat nfp_net_et_stats[] = {
/* Stats from the device */
{ "dev_rx_discards", NFP_NET_CFG_STATS_RX_DISCARDS },
{ "dev_rx_errors", NFP_NET_CFG_STATS_RX_ERRORS },
{ "dev_rx_bytes", NFP_NET_CFG_STATS_RX_OCTETS },
{ "dev_rx_uc_bytes", NFP_NET_CFG_STATS_RX_UC_OCTETS },
{ "dev_rx_mc_bytes", NFP_NET_CFG_STATS_RX_MC_OCTETS },
{ "dev_rx_bc_bytes", NFP_NET_CFG_STATS_RX_BC_OCTETS },
{ "dev_rx_pkts", NFP_NET_CFG_STATS_RX_FRAMES },
{ "dev_rx_mc_pkts", NFP_NET_CFG_STATS_RX_MC_FRAMES },
{ "dev_rx_bc_pkts", NFP_NET_CFG_STATS_RX_BC_FRAMES },
{ "dev_tx_discards", NFP_NET_CFG_STATS_TX_DISCARDS },
{ "dev_tx_errors", NFP_NET_CFG_STATS_TX_ERRORS },
{ "dev_tx_bytes", NFP_NET_CFG_STATS_TX_OCTETS },
{ "dev_tx_uc_bytes", NFP_NET_CFG_STATS_TX_UC_OCTETS },
{ "dev_tx_mc_bytes", NFP_NET_CFG_STATS_TX_MC_OCTETS },
{ "dev_tx_bc_bytes", NFP_NET_CFG_STATS_TX_BC_OCTETS },
{ "dev_tx_pkts", NFP_NET_CFG_STATS_TX_FRAMES },
{ "dev_tx_mc_pkts", NFP_NET_CFG_STATS_TX_MC_FRAMES },
{ "dev_tx_bc_pkts", NFP_NET_CFG_STATS_TX_BC_FRAMES },
{ "bpf_pass_pkts", NFP_NET_CFG_STATS_APP0_FRAMES },
{ "bpf_pass_bytes", NFP_NET_CFG_STATS_APP0_BYTES },
/* see comments in outro functions in nfp_bpf_jit.c to find out
* how different BPF modes use app-specific counters
*/
{ "bpf_app1_pkts", NFP_NET_CFG_STATS_APP1_FRAMES },
{ "bpf_app1_bytes", NFP_NET_CFG_STATS_APP1_BYTES },
{ "bpf_app2_pkts", NFP_NET_CFG_STATS_APP2_FRAMES },
{ "bpf_app2_bytes", NFP_NET_CFG_STATS_APP2_BYTES },
{ "bpf_app3_pkts", NFP_NET_CFG_STATS_APP3_FRAMES },
{ "bpf_app3_bytes", NFP_NET_CFG_STATS_APP3_BYTES },
};
static const struct nfp_et_stat nfp_mac_et_stats[] = {
{ "rx_octets", NFP_MAC_STATS_RX_IN_OCTETS, },
{ "rx_frame_too_long_errors",
NFP_MAC_STATS_RX_FRAME_TOO_LONG_ERRORS, },
{ "rx_range_length_errors", NFP_MAC_STATS_RX_RANGE_LENGTH_ERRORS, },
{ "rx_vlan_received_ok", NFP_MAC_STATS_RX_VLAN_RECEIVED_OK, },
{ "rx_errors", NFP_MAC_STATS_RX_IN_ERRORS, },
{ "rx_broadcast_pkts", NFP_MAC_STATS_RX_IN_BROADCAST_PKTS, },
{ "rx_drop_events", NFP_MAC_STATS_RX_DROP_EVENTS, },
{ "rx_alignment_errors", NFP_MAC_STATS_RX_ALIGNMENT_ERRORS, },
{ "rx_pause_mac_ctrl_frames",
NFP_MAC_STATS_RX_PAUSE_MAC_CTRL_FRAMES, },
{ "rx_frames_received_ok", NFP_MAC_STATS_RX_FRAMES_RECEIVED_OK, },
{ "rx_frame_check_sequence_errors",
NFP_MAC_STATS_RX_FRAME_CHECK_SEQUENCE_ERRORS, },
{ "rx_unicast_pkts", NFP_MAC_STATS_RX_UNICAST_PKTS, },
{ "rx_multicast_pkts", NFP_MAC_STATS_RX_MULTICAST_PKTS, },
{ "rx_pkts", NFP_MAC_STATS_RX_PKTS, },
{ "rx_undersize_pkts", NFP_MAC_STATS_RX_UNDERSIZE_PKTS, },
{ "rx_pkts_64_octets", NFP_MAC_STATS_RX_PKTS_64_OCTETS, },
{ "rx_pkts_65_to_127_octets",
NFP_MAC_STATS_RX_PKTS_65_TO_127_OCTETS, },
{ "rx_pkts_128_to_255_octets",
NFP_MAC_STATS_RX_PKTS_128_TO_255_OCTETS, },
{ "rx_pkts_256_to_511_octets",
NFP_MAC_STATS_RX_PKTS_256_TO_511_OCTETS, },
{ "rx_pkts_512_to_1023_octets",
NFP_MAC_STATS_RX_PKTS_512_TO_1023_OCTETS, },
{ "rx_pkts_1024_to_1518_octets",
NFP_MAC_STATS_RX_PKTS_1024_TO_1518_OCTETS, },
{ "rx_pkts_1519_to_max_octets",
NFP_MAC_STATS_RX_PKTS_1519_TO_MAX_OCTETS, },
{ "rx_jabbers", NFP_MAC_STATS_RX_JABBERS, },
{ "rx_fragments", NFP_MAC_STATS_RX_FRAGMENTS, },
{ "rx_oversize_pkts", NFP_MAC_STATS_RX_OVERSIZE_PKTS, },
{ "rx_pause_frames_class0", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS0, },
{ "rx_pause_frames_class1", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS1, },
{ "rx_pause_frames_class2", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS2, },
{ "rx_pause_frames_class3", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS3, },
{ "rx_pause_frames_class4", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS4, },
{ "rx_pause_frames_class5", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS5, },
{ "rx_pause_frames_class6", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS6, },
{ "rx_pause_frames_class7", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS7, },
{ "rx_mac_ctrl_frames_received",
NFP_MAC_STATS_RX_MAC_CTRL_FRAMES_RECEIVED, },
{ "rx_mac_head_drop", NFP_MAC_STATS_RX_MAC_HEAD_DROP, },
{ "tx_queue_drop", NFP_MAC_STATS_TX_QUEUE_DROP, },
{ "tx_octets", NFP_MAC_STATS_TX_OUT_OCTETS, },
{ "tx_vlan_transmitted_ok", NFP_MAC_STATS_TX_VLAN_TRANSMITTED_OK, },
{ "tx_errors", NFP_MAC_STATS_TX_OUT_ERRORS, },
{ "tx_broadcast_pkts", NFP_MAC_STATS_TX_BROADCAST_PKTS, },
{ "tx_pause_mac_ctrl_frames",
NFP_MAC_STATS_TX_PAUSE_MAC_CTRL_FRAMES, },
{ "tx_frames_transmitted_ok",
NFP_MAC_STATS_TX_FRAMES_TRANSMITTED_OK, },
{ "tx_unicast_pkts", NFP_MAC_STATS_TX_UNICAST_PKTS, },
{ "tx_multicast_pkts", NFP_MAC_STATS_TX_MULTICAST_PKTS, },
{ "tx_pkts_64_octets", NFP_MAC_STATS_TX_PKTS_64_OCTETS, },
{ "tx_pkts_65_to_127_octets",
NFP_MAC_STATS_TX_PKTS_65_TO_127_OCTETS, },
{ "tx_pkts_128_to_255_octets",
NFP_MAC_STATS_TX_PKTS_128_TO_255_OCTETS, },
{ "tx_pkts_256_to_511_octets",
NFP_MAC_STATS_TX_PKTS_256_TO_511_OCTETS, },
{ "tx_pkts_512_to_1023_octets",
NFP_MAC_STATS_TX_PKTS_512_TO_1023_OCTETS, },
{ "tx_pkts_1024_to_1518_octets",
NFP_MAC_STATS_TX_PKTS_1024_TO_1518_OCTETS, },
{ "tx_pkts_1519_to_max_octets",
NFP_MAC_STATS_TX_PKTS_1519_TO_MAX_OCTETS, },
{ "tx_pause_frames_class0", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS0, },
{ "tx_pause_frames_class1", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS1, },
{ "tx_pause_frames_class2", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS2, },
{ "tx_pause_frames_class3", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS3, },
{ "tx_pause_frames_class4", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS4, },
{ "tx_pause_frames_class5", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS5, },
{ "tx_pause_frames_class6", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS6, },
{ "tx_pause_frames_class7", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS7, },
};
static const char nfp_tlv_stat_names[][ETH_GSTRING_LEN] = {
[1] = "dev_rx_discards",
[2] = "dev_rx_errors",
[3] = "dev_rx_bytes",
[4] = "dev_rx_uc_bytes",
[5] = "dev_rx_mc_bytes",
[6] = "dev_rx_bc_bytes",
[7] = "dev_rx_pkts",
[8] = "dev_rx_mc_pkts",
[9] = "dev_rx_bc_pkts",
[10] = "dev_tx_discards",
[11] = "dev_tx_errors",
[12] = "dev_tx_bytes",
[13] = "dev_tx_uc_bytes",
[14] = "dev_tx_mc_bytes",
[15] = "dev_tx_bc_bytes",
[16] = "dev_tx_pkts",
[17] = "dev_tx_mc_pkts",
[18] = "dev_tx_bc_pkts",
};
#define NN_ET_GLOBAL_STATS_LEN ARRAY_SIZE(nfp_net_et_stats)
#define NN_ET_SWITCH_STATS_LEN 9
#define NN_RVEC_GATHER_STATS 13
#define NN_RVEC_PER_Q_STATS 3
#define NN_CTRL_PATH_STATS 4
#define SFP_SFF_REV_COMPLIANCE 1
static void nfp_net_get_nspinfo(struct nfp_app *app, char *version)
{
struct nfp_nsp *nsp;
if (!app)
return;
nsp = nfp_nsp_open(app->cpp);
if (IS_ERR(nsp))
return;
snprintf(version, ETHTOOL_FWVERS_LEN, "%hu.%hu",
nfp_nsp_get_abi_ver_major(nsp),
nfp_nsp_get_abi_ver_minor(nsp));
nfp_nsp_close(nsp);
}
static void
nfp_get_drvinfo(struct nfp_app *app, struct pci_dev *pdev,
const char *vnic_version, struct ethtool_drvinfo *drvinfo)
{
char nsp_version[ETHTOOL_FWVERS_LEN] = {};
strscpy(drvinfo->driver, dev_driver_string(&pdev->dev),
sizeof(drvinfo->driver));
nfp_net_get_nspinfo(app, nsp_version);
snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
"%s %s %s %s", vnic_version, nsp_version,
nfp_app_mip_name(app), nfp_app_name(app));
}
static void
nfp_net_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
{
char vnic_version[ETHTOOL_FWVERS_LEN] = {};
struct nfp_net *nn = netdev_priv(netdev);
snprintf(vnic_version, sizeof(vnic_version), "%d.%d.%d.%d",
nn->fw_ver.extend, nn->fw_ver.class,
nn->fw_ver.major, nn->fw_ver.minor);
strscpy(drvinfo->bus_info, pci_name(nn->pdev),
sizeof(drvinfo->bus_info));
nfp_get_drvinfo(nn->app, nn->pdev, vnic_version, drvinfo);
}
static int
nfp_net_nway_reset(struct net_device *netdev)
{
struct nfp_eth_table_port *eth_port;
struct nfp_port *port;
int err;
port = nfp_port_from_netdev(netdev);
eth_port = nfp_port_get_eth_port(port);
if (!eth_port)
return -EOPNOTSUPP;
if (!netif_running(netdev))
return 0;
err = nfp_eth_set_configured(port->app->cpp, eth_port->index, false);
if (err) {
netdev_info(netdev, "Link down failed: %d\n", err);
return err;
}
err = nfp_eth_set_configured(port->app->cpp, eth_port->index, true);
if (err) {
netdev_info(netdev, "Link up failed: %d\n", err);
return err;
}
netdev_info(netdev, "Link reset succeeded\n");
return 0;
}
static void
nfp_app_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
{
struct nfp_app *app = nfp_app_from_netdev(netdev);
strscpy(drvinfo->bus_info, pci_name(app->pdev),
sizeof(drvinfo->bus_info));
nfp_get_drvinfo(app, app->pdev, "*", drvinfo);
}
static void
nfp_net_set_fec_link_mode(struct nfp_eth_table_port *eth_port,
struct ethtool_link_ksettings *c)
{
unsigned int modes;
ethtool_link_ksettings_add_link_mode(c, supported, FEC_NONE);
if (!nfp_eth_can_support_fec(eth_port)) {
ethtool_link_ksettings_add_link_mode(c, advertising, FEC_NONE);
return;
}
modes = nfp_eth_supported_fec_modes(eth_port);
if (modes & NFP_FEC_BASER) {
ethtool_link_ksettings_add_link_mode(c, supported, FEC_BASER);
ethtool_link_ksettings_add_link_mode(c, advertising, FEC_BASER);
}
if (modes & NFP_FEC_REED_SOLOMON) {
ethtool_link_ksettings_add_link_mode(c, supported, FEC_RS);
ethtool_link_ksettings_add_link_mode(c, advertising, FEC_RS);
}
}
static const struct nfp_eth_media_link_mode {
u16 ethtool_link_mode;
u16 speed;
} nfp_eth_media_table[NFP_MEDIA_LINK_MODES_NUMBER] = {
[NFP_MEDIA_1000BASE_CX] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
.speed = NFP_SPEED_1G,
},
[NFP_MEDIA_1000BASE_KX] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
.speed = NFP_SPEED_1G,
},
[NFP_MEDIA_10GBASE_KX4] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,
.speed = NFP_SPEED_10G,
},
[NFP_MEDIA_10GBASE_KR] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
.speed = NFP_SPEED_10G,
},
[NFP_MEDIA_10GBASE_LR] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_10000baseLR_Full_BIT,
.speed = NFP_SPEED_10G,
},
[NFP_MEDIA_10GBASE_CX4] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,
.speed = NFP_SPEED_10G,
},
[NFP_MEDIA_10GBASE_CR] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_10000baseCR_Full_BIT,
.speed = NFP_SPEED_10G,
},
[NFP_MEDIA_10GBASE_SR] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_10000baseSR_Full_BIT,
.speed = NFP_SPEED_10G,
},
[NFP_MEDIA_10GBASE_ER] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_10000baseER_Full_BIT,
.speed = NFP_SPEED_10G,
},
[NFP_MEDIA_25GBASE_KR] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_25000baseKR_Full_BIT,
.speed = NFP_SPEED_25G,
},
[NFP_MEDIA_25GBASE_KR_S] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_25000baseKR_Full_BIT,
.speed = NFP_SPEED_25G,
},
[NFP_MEDIA_25GBASE_CR] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_25000baseCR_Full_BIT,
.speed = NFP_SPEED_25G,
},
[NFP_MEDIA_25GBASE_CR_S] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_25000baseCR_Full_BIT,
.speed = NFP_SPEED_25G,
},
[NFP_MEDIA_25GBASE_SR] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_25000baseSR_Full_BIT,
.speed = NFP_SPEED_25G,
},
[NFP_MEDIA_25GBASE_LR] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_25000baseSR_Full_BIT,
.speed = NFP_SPEED_25G,
},
[NFP_MEDIA_25GBASE_ER] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_25000baseSR_Full_BIT,
.speed = NFP_SPEED_25G,
},
[NFP_MEDIA_40GBASE_CR4] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT,
.speed = NFP_SPEED_40G,
},
[NFP_MEDIA_40GBASE_KR4] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT,
.speed = NFP_SPEED_40G,
},
[NFP_MEDIA_40GBASE_SR4] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT,
.speed = NFP_SPEED_40G,
},
[NFP_MEDIA_40GBASE_LR4] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT,
.speed = NFP_SPEED_40G,
},
[NFP_MEDIA_50GBASE_KR] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_50000baseKR_Full_BIT,
.speed = NFP_SPEED_50G,
},
[NFP_MEDIA_50GBASE_SR] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_50000baseSR_Full_BIT,
.speed = NFP_SPEED_50G,
},
[NFP_MEDIA_50GBASE_CR] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_50000baseCR_Full_BIT,
.speed = NFP_SPEED_50G,
},
[NFP_MEDIA_50GBASE_LR] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT,
.speed = NFP_SPEED_50G,
},
[NFP_MEDIA_50GBASE_ER] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT,
.speed = NFP_SPEED_50G,
},
[NFP_MEDIA_50GBASE_FR] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT,
.speed = NFP_SPEED_50G,
},
[NFP_MEDIA_100GBASE_KR4] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT,
.speed = NFP_SPEED_100G,
},
[NFP_MEDIA_100GBASE_SR4] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT,
.speed = NFP_SPEED_100G,
},
[NFP_MEDIA_100GBASE_CR4] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT,
.speed = NFP_SPEED_100G,
},
[NFP_MEDIA_100GBASE_KP4] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT,
.speed = NFP_SPEED_100G,
},
[NFP_MEDIA_100GBASE_CR10] = {
.ethtool_link_mode = ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT,
.speed = NFP_SPEED_100G,
},
};
static const unsigned int nfp_eth_speed_map[NFP_SUP_SPEED_NUMBER] = {
[NFP_SPEED_1G] = SPEED_1000,
[NFP_SPEED_10G] = SPEED_10000,
[NFP_SPEED_25G] = SPEED_25000,
[NFP_SPEED_40G] = SPEED_40000,
[NFP_SPEED_50G] = SPEED_50000,
[NFP_SPEED_100G] = SPEED_100000,
};
static void nfp_add_media_link_mode(struct nfp_port *port,
struct nfp_eth_table_port *eth_port,
struct ethtool_link_ksettings *cmd)
{
bitmap_zero(port->speed_bitmap, NFP_SUP_SPEED_NUMBER);
for (u32 i = 0; i < NFP_MEDIA_LINK_MODES_NUMBER; i++) {
if (i < 64) {
if (eth_port->link_modes_supp[0] & BIT_ULL(i)) {
__set_bit(nfp_eth_media_table[i].ethtool_link_mode,
cmd->link_modes.supported);
__set_bit(nfp_eth_media_table[i].speed,
port->speed_bitmap);
}
if (eth_port->link_modes_ad[0] & BIT_ULL(i))
__set_bit(nfp_eth_media_table[i].ethtool_link_mode,
cmd->link_modes.advertising);
} else {
if (eth_port->link_modes_supp[1] & BIT_ULL(i - 64)) {
__set_bit(nfp_eth_media_table[i].ethtool_link_mode,
cmd->link_modes.supported);
__set_bit(nfp_eth_media_table[i].speed,
port->speed_bitmap);
}
if (eth_port->link_modes_ad[1] & BIT_ULL(i - 64))
__set_bit(nfp_eth_media_table[i].ethtool_link_mode,
cmd->link_modes.advertising);
}
}
/* We take all speeds as supported when it fails to read
* link modes due to old management firmware that doesn't
* support link modes reading or error occurring, so that
* speed change of this port is allowed.
*/
if (bitmap_empty(port->speed_bitmap, NFP_SUP_SPEED_NUMBER))
bitmap_fill(port->speed_bitmap, NFP_SUP_SPEED_NUMBER);
}
/**
* nfp_net_get_link_ksettings - Get Link Speed settings
* @netdev: network interface device structure
* @cmd: ethtool command
*
* Reports speed settings based on info in the BAR provided by the fw.
*/
static int
nfp_net_get_link_ksettings(struct net_device *netdev,
struct ethtool_link_ksettings *cmd)
{
struct nfp_eth_table_port *eth_port;
struct nfp_port *port;
struct nfp_net *nn;
unsigned int speed;
u16 sts;
/* Init to unknowns */
ethtool_link_ksettings_zero_link_mode(cmd, supported);
ethtool_link_ksettings_zero_link_mode(cmd, advertising);
ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
cmd->base.port = PORT_OTHER;
cmd->base.speed = SPEED_UNKNOWN;
cmd->base.duplex = DUPLEX_UNKNOWN;
port = nfp_port_from_netdev(netdev);
eth_port = nfp_port_get_eth_port(port);
if (eth_port) {
ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
nfp_add_media_link_mode(port, eth_port, cmd);
if (eth_port->supp_aneg) {
ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
if (eth_port->aneg == NFP_ANEG_AUTO) {
ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg);
cmd->base.autoneg = AUTONEG_ENABLE;
}
}
nfp_net_set_fec_link_mode(eth_port, cmd);
}
if (!netif_carrier_ok(netdev))
return 0;
/* Use link speed from ETH table if available, otherwise try the BAR */
if (eth_port) {
cmd->base.port = eth_port->port_type;
cmd->base.speed = eth_port->speed;
cmd->base.duplex = DUPLEX_FULL;
return 0;
}
if (!nfp_netdev_is_nfp_net(netdev))
return -EOPNOTSUPP;
nn = netdev_priv(netdev);
sts = nn_readw(nn, NFP_NET_CFG_STS);
speed = nfp_net_lr2speed(FIELD_GET(NFP_NET_CFG_STS_LINK_RATE, sts));
if (!speed)
return -EOPNOTSUPP;
if (speed != SPEED_UNKNOWN) {
cmd->base.speed = speed;
cmd->base.duplex = DUPLEX_FULL;
}
return 0;
}
static int
nfp_net_set_link_ksettings(struct net_device *netdev,
const struct ethtool_link_ksettings *cmd)
{
bool req_aneg = (cmd->base.autoneg == AUTONEG_ENABLE);
struct nfp_eth_table_port *eth_port;
struct nfp_port *port;
struct nfp_nsp *nsp;
int err;
port = nfp_port_from_netdev(netdev);
eth_port = __nfp_port_get_eth_port(port);
if (!eth_port)
return -EOPNOTSUPP;
if (netif_running(netdev)) {
netdev_warn(netdev, "Changing settings not allowed on an active interface. It may cause the port to be disabled until driver reload.\n");
return -EBUSY;
}
nsp = nfp_eth_config_start(port->app->cpp, eth_port->index);
if (IS_ERR(nsp))
return PTR_ERR(nsp);
if (req_aneg && !eth_port->supp_aneg) {
netdev_warn(netdev, "Autoneg is not supported.\n");
err = -EOPNOTSUPP;
goto err_bad_set;
}
err = __nfp_eth_set_aneg(nsp, req_aneg ? NFP_ANEG_AUTO : NFP_ANEG_DISABLED);
if (err)
goto err_bad_set;
if (cmd->base.speed != SPEED_UNKNOWN) {
u32 speed = cmd->base.speed / eth_port->lanes;
bool is_supported = false;
for (u32 i = 0; i < NFP_SUP_SPEED_NUMBER; i++) {
if (cmd->base.speed == nfp_eth_speed_map[i] &&
test_bit(i, port->speed_bitmap)) {
is_supported = true;
break;
}
}
if (!is_supported) {
netdev_err(netdev, "Speed %u is not supported.\n",
cmd->base.speed);
err = -EINVAL;
goto err_bad_set;
}
if (req_aneg) {
netdev_err(netdev, "Speed changing is not allowed when working on autoneg mode.\n");
err = -EINVAL;
goto err_bad_set;
}
err = __nfp_eth_set_speed(nsp, speed);
if (err)
goto err_bad_set;
}
err = nfp_eth_config_commit_end(nsp);
if (err > 0)
return 0; /* no change */
nfp_net_refresh_port_table(port);
return err;
err_bad_set:
nfp_eth_config_cleanup_end(nsp);
return err;
}
static void nfp_net_get_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring,
struct kernel_ethtool_ringparam *kernel_ring,
struct netlink_ext_ack *extack)
{
struct nfp_net *nn = netdev_priv(netdev);
u32 qc_max = nn->dev_info->max_qc_size;
ring->rx_max_pending = qc_max;
ring->tx_max_pending = qc_max / nn->dp.ops->tx_min_desc_per_pkt;
ring->rx_pending = nn->dp.rxd_cnt;
ring->tx_pending = nn->dp.txd_cnt;
}
static int nfp_net_set_ring_size(struct nfp_net *nn, u32 rxd_cnt, u32 txd_cnt,
struct netlink_ext_ack *extack)
{
struct nfp_net_dp *dp;
dp = nfp_net_clone_dp(nn);
if (!dp)
return -ENOMEM;
dp->rxd_cnt = rxd_cnt;
dp->txd_cnt = txd_cnt;
return nfp_net_ring_reconfig(nn, dp, extack);
}
static int nfp_net_set_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring,
struct kernel_ethtool_ringparam *kernel_ring,
struct netlink_ext_ack *extack)
{
u32 tx_dpp, qc_min, qc_max, rxd_cnt, txd_cnt;
struct nfp_net *nn = netdev_priv(netdev);
/* We don't have separate queues/rings for small/large frames. */
if (ring->rx_mini_pending || ring->rx_jumbo_pending)
return -EOPNOTSUPP;
qc_min = nn->dev_info->min_qc_size;
qc_max = nn->dev_info->max_qc_size;
tx_dpp = nn->dp.ops->tx_min_desc_per_pkt;
/* Round up to supported values */
rxd_cnt = roundup_pow_of_two(ring->rx_pending);
txd_cnt = roundup_pow_of_two(ring->tx_pending);
if (rxd_cnt < qc_min || rxd_cnt > qc_max) {
NL_SET_ERR_MSG_MOD(extack, "rx parameter out of bounds");
return -EINVAL;
}
if (txd_cnt < qc_min / tx_dpp || txd_cnt > qc_max / tx_dpp) {
NL_SET_ERR_MSG_MOD(extack, "tx parameter out of bounds");
return -EINVAL;
}
if (nn->dp.rxd_cnt == rxd_cnt && nn->dp.txd_cnt == txd_cnt)
return 0;
nn_dbg(nn, "Change ring size: RxQ %u->%u, TxQ %u->%u\n",
nn->dp.rxd_cnt, rxd_cnt, nn->dp.txd_cnt, txd_cnt);
return nfp_net_set_ring_size(nn, rxd_cnt, txd_cnt, extack);
}
static int nfp_test_link(struct net_device *netdev)
{
if (!netif_carrier_ok(netdev) || !(netdev->flags & IFF_UP))
return 1;
return 0;
}
static int nfp_test_nsp(struct net_device *netdev)
{
struct nfp_app *app = nfp_app_from_netdev(netdev);
struct nfp_nsp_identify *nspi;
struct nfp_nsp *nsp;
int err;
nsp = nfp_nsp_open(app->cpp);
if (IS_ERR(nsp)) {
err = PTR_ERR(nsp);
netdev_info(netdev, "NSP Test: failed to access the NSP: %d\n", err);
goto exit;
}
if (nfp_nsp_get_abi_ver_minor(nsp) < 15) {
err = -EOPNOTSUPP;
goto exit_close_nsp;
}
nspi = kzalloc(sizeof(*nspi), GFP_KERNEL);
if (!nspi) {
err = -ENOMEM;
goto exit_close_nsp;
}
err = nfp_nsp_read_identify(nsp, nspi, sizeof(*nspi));
if (err < 0)
netdev_info(netdev, "NSP Test: reading bsp version failed %d\n", err);
kfree(nspi);
exit_close_nsp:
nfp_nsp_close(nsp);
exit:
return err;
}
static int nfp_test_fw(struct net_device *netdev)
{
struct nfp_net *nn = netdev_priv(netdev);
int err;
err = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_GEN);
if (err)
netdev_info(netdev, "FW Test: update failed %d\n", err);
return err;
}
static int nfp_test_reg(struct net_device *netdev)
{
struct nfp_app *app = nfp_app_from_netdev(netdev);
struct nfp_cpp *cpp = app->cpp;
u32 model = nfp_cpp_model(cpp);
u32 value;
int err;
err = nfp_cpp_model_autodetect(cpp, &value);
if (err < 0) {
netdev_info(netdev, "REG Test: NFP model detection failed %d\n", err);
return err;
}
return (value == model) ? 0 : 1;
}
static bool link_test_supported(struct net_device *netdev)
{
return true;
}
static bool nsp_test_supported(struct net_device *netdev)
{
if (nfp_app_from_netdev(netdev))
return true;
return false;
}
static bool fw_test_supported(struct net_device *netdev)
{
if (nfp_netdev_is_nfp_net(netdev))
return true;
return false;
}
static bool reg_test_supported(struct net_device *netdev)
{
if (nfp_app_from_netdev(netdev))
return true;
return false;
}
static struct nfp_self_test_item {
char name[ETH_GSTRING_LEN];
bool (*is_supported)(struct net_device *dev);
int (*func)(struct net_device *dev);
} nfp_self_test[] = {
{"Link Test", link_test_supported, nfp_test_link},
{"NSP Test", nsp_test_supported, nfp_test_nsp},
{"Firmware Test", fw_test_supported, nfp_test_fw},
{"Register Test", reg_test_supported, nfp_test_reg}
};
#define NFP_TEST_TOTAL_NUM ARRAY_SIZE(nfp_self_test)
static void nfp_get_self_test_strings(struct net_device *netdev, u8 *data)
{
int i;
for (i = 0; i < NFP_TEST_TOTAL_NUM; i++)
if (nfp_self_test[i].is_supported(netdev))
ethtool_puts(&data, nfp_self_test[i].name);
}
static int nfp_get_self_test_count(struct net_device *netdev)
{
int i, count = 0;
for (i = 0; i < NFP_TEST_TOTAL_NUM; i++)
if (nfp_self_test[i].is_supported(netdev))
count++;
return count;
}
static void nfp_net_self_test(struct net_device *netdev, struct ethtool_test *eth_test,
u64 *data)
{
int i, ret, count = 0;
netdev_info(netdev, "Start self test\n");
for (i = 0; i < NFP_TEST_TOTAL_NUM; i++) {
if (nfp_self_test[i].is_supported(netdev)) {
ret = nfp_self_test[i].func(netdev);
if (ret)
eth_test->flags |= ETH_TEST_FL_FAILED;
data[count++] = ret;
}
}
netdev_info(netdev, "Test end\n");
}
static unsigned int nfp_vnic_get_sw_stats_count(struct net_device *netdev)
{
struct nfp_net *nn = netdev_priv(netdev);
return NN_RVEC_GATHER_STATS + nn->max_r_vecs * NN_RVEC_PER_Q_STATS +
NN_CTRL_PATH_STATS;
}
static u8 *nfp_vnic_get_sw_stats_strings(struct net_device *netdev, u8 *data)
{
struct nfp_net *nn = netdev_priv(netdev);
int i;
for (i = 0; i < nn->max_r_vecs; i++) {
ethtool_sprintf(&data, "rvec_%u_rx_pkts", i);
ethtool_sprintf(&data, "rvec_%u_tx_pkts", i);
ethtool_sprintf(&data, "rvec_%u_tx_busy", i);
}
ethtool_puts(&data, "hw_rx_csum_ok");
ethtool_puts(&data, "hw_rx_csum_inner_ok");
ethtool_puts(&data, "hw_rx_csum_complete");
ethtool_puts(&data, "hw_rx_csum_err");
ethtool_puts(&data, "rx_replace_buf_alloc_fail");
ethtool_puts(&data, "rx_tls_decrypted_packets");
ethtool_puts(&data, "hw_tx_csum");
ethtool_puts(&data, "hw_tx_inner_csum");
ethtool_puts(&data, "tx_gather");
ethtool_puts(&data, "tx_lso");
ethtool_puts(&data, "tx_tls_encrypted_packets");
ethtool_puts(&data, "tx_tls_ooo");
ethtool_puts(&data, "tx_tls_drop_no_sync_data");
ethtool_puts(&data, "hw_tls_no_space");
ethtool_puts(&data, "rx_tls_resync_req_ok");
ethtool_puts(&data, "rx_tls_resync_req_ign");
ethtool_puts(&data, "rx_tls_resync_sent");
return data;
}
static u64 *nfp_vnic_get_sw_stats(struct net_device *netdev, u64 *data)
{
u64 gathered_stats[NN_RVEC_GATHER_STATS] = {};
struct nfp_net *nn = netdev_priv(netdev);
u64 tmp[NN_RVEC_GATHER_STATS];
unsigned int i, j;
for (i = 0; i < nn->max_r_vecs; i++) {
unsigned int start;
do {
start = u64_stats_fetch_begin(&nn->r_vecs[i].rx_sync);
data[0] = nn->r_vecs[i].rx_pkts;
tmp[0] = nn->r_vecs[i].hw_csum_rx_ok;
tmp[1] = nn->r_vecs[i].hw_csum_rx_inner_ok;
tmp[2] = nn->r_vecs[i].hw_csum_rx_complete;
tmp[3] = nn->r_vecs[i].hw_csum_rx_error;
tmp[4] = nn->r_vecs[i].rx_replace_buf_alloc_fail;
tmp[5] = nn->r_vecs[i].hw_tls_rx;
} while (u64_stats_fetch_retry(&nn->r_vecs[i].rx_sync, start));
do {
start = u64_stats_fetch_begin(&nn->r_vecs[i].tx_sync);
data[1] = nn->r_vecs[i].tx_pkts;
data[2] = nn->r_vecs[i].tx_busy;
tmp[6] = nn->r_vecs[i].hw_csum_tx;
tmp[7] = nn->r_vecs[i].hw_csum_tx_inner;
tmp[8] = nn->r_vecs[i].tx_gather;
tmp[9] = nn->r_vecs[i].tx_lso;
tmp[10] = nn->r_vecs[i].hw_tls_tx;
tmp[11] = nn->r_vecs[i].tls_tx_fallback;
tmp[12] = nn->r_vecs[i].tls_tx_no_fallback;
} while (u64_stats_fetch_retry(&nn->r_vecs[i].tx_sync, start));
data += NN_RVEC_PER_Q_STATS;
for (j = 0; j < NN_RVEC_GATHER_STATS; j++)
gathered_stats[j] += tmp[j];
}
for (j = 0; j < NN_RVEC_GATHER_STATS; j++)
*data++ = gathered_stats[j];
*data++ = atomic_read(&nn->ktls_no_space);
*data++ = atomic_read(&nn->ktls_rx_resync_req);
*data++ = atomic_read(&nn->ktls_rx_resync_ign);
*data++ = atomic_read(&nn->ktls_rx_resync_sent);
return data;
}
static unsigned int nfp_vnic_get_hw_stats_count(unsigned int num_vecs)
{
return NN_ET_GLOBAL_STATS_LEN + num_vecs * 4;
}
static u8 *
nfp_vnic_get_hw_stats_strings(u8 *data, unsigned int num_vecs, bool repr)
{
int swap_off, i;
BUILD_BUG_ON(NN_ET_GLOBAL_STATS_LEN < NN_ET_SWITCH_STATS_LEN * 2);
/* If repr is true first add SWITCH_STATS_LEN and then subtract it
* effectively swapping the RX and TX statistics (giving us the RX
* and TX from perspective of the switch).
*/
swap_off = repr * NN_ET_SWITCH_STATS_LEN;
for (i = 0; i < NN_ET_SWITCH_STATS_LEN; i++)
ethtool_puts(&data, nfp_net_et_stats[i + swap_off].name);
for (i = NN_ET_SWITCH_STATS_LEN; i < NN_ET_SWITCH_STATS_LEN * 2; i++)
ethtool_puts(&data, nfp_net_et_stats[i - swap_off].name);
for (i = NN_ET_SWITCH_STATS_LEN * 2; i < NN_ET_GLOBAL_STATS_LEN; i++)
ethtool_puts(&data, nfp_net_et_stats[i].name);
for (i = 0; i < num_vecs; i++) {
ethtool_sprintf(&data, "rxq_%u_pkts", i);
ethtool_sprintf(&data, "rxq_%u_bytes", i);
ethtool_sprintf(&data, "txq_%u_pkts", i);
ethtool_sprintf(&data, "txq_%u_bytes", i);
}
return data;
}
static u64 *
nfp_vnic_get_hw_stats(u64 *data, u8 __iomem *mem, unsigned int num_vecs)
{
unsigned int i;
for (i = 0; i < NN_ET_GLOBAL_STATS_LEN; i++)
*data++ = readq(mem + nfp_net_et_stats[i].off);
for (i = 0; i < num_vecs; i++) {
*data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i));
*data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i) + 8);
*data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i));
*data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i) + 8);
}
return data;
}
static unsigned int nfp_vnic_get_tlv_stats_count(struct nfp_net *nn)
{
return nn->tlv_caps.vnic_stats_cnt + nn->max_r_vecs * 4;
}
static u8 *nfp_vnic_get_tlv_stats_strings(struct nfp_net *nn, u8 *data)
{
unsigned int i, id;
u8 __iomem *mem;
u64 id_word = 0;
mem = nn->dp.ctrl_bar + nn->tlv_caps.vnic_stats_off;
for (i = 0; i < nn->tlv_caps.vnic_stats_cnt; i++) {
if (!(i % 4))
id_word = readq(mem + i * 2);
id = (u16)id_word;
id_word >>= 16;
if (id < ARRAY_SIZE(nfp_tlv_stat_names) &&
nfp_tlv_stat_names[id][0]) {
memcpy(data, nfp_tlv_stat_names[id], ETH_GSTRING_LEN);
data += ETH_GSTRING_LEN;
} else {
ethtool_sprintf(&data, "dev_unknown_stat%u", id);
}
}
for (i = 0; i < nn->max_r_vecs; i++) {
ethtool_sprintf(&data, "rxq_%u_pkts", i);
ethtool_sprintf(&data, "rxq_%u_bytes", i);
ethtool_sprintf(&data, "txq_%u_pkts", i);
ethtool_sprintf(&data, "txq_%u_bytes", i);
}
return data;
}
static u64 *nfp_vnic_get_tlv_stats(struct nfp_net *nn, u64 *data)
{
u8 __iomem *mem;
unsigned int i;
mem = nn->dp.ctrl_bar + nn->tlv_caps.vnic_stats_off;
mem += roundup(2 * nn->tlv_caps.vnic_stats_cnt, 8);
for (i = 0; i < nn->tlv_caps.vnic_stats_cnt; i++)
*data++ = readq(mem + i * 8);
mem = nn->dp.ctrl_bar;
for (i = 0; i < nn->max_r_vecs; i++) {
*data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i));
*data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i) + 8);
*data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i));
*data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i) + 8);
}
return data;
}
static unsigned int nfp_mac_get_stats_count(struct net_device *netdev)
{
struct nfp_port *port;
port = nfp_port_from_netdev(netdev);
if (!__nfp_port_get_eth_port(port) || !port->eth_stats)
return 0;
return ARRAY_SIZE(nfp_mac_et_stats);
}
static u8 *nfp_mac_get_stats_strings(struct net_device *netdev, u8 *data)
{
struct nfp_port *port;
unsigned int i;
port = nfp_port_from_netdev(netdev);
if (!__nfp_port_get_eth_port(port) || !port->eth_stats)
return data;
for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++)
ethtool_sprintf(&data, "mac.%s", nfp_mac_et_stats[i].name);
return data;
}
static u64 *nfp_mac_get_stats(struct net_device *netdev, u64 *data)
{
struct nfp_port *port;
unsigned int i;
port = nfp_port_from_netdev(netdev);
if (!__nfp_port_get_eth_port(port) || !port->eth_stats)
return data;
for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++)
*data++ = readq(port->eth_stats + nfp_mac_et_stats[i].off);
return data;
}
static void nfp_net_get_strings(struct net_device *netdev,
u32 stringset, u8 *data)
{
struct nfp_net *nn = netdev_priv(netdev);
switch (stringset) {
case ETH_SS_STATS:
data = nfp_vnic_get_sw_stats_strings(netdev, data);
if (!nn->tlv_caps.vnic_stats_off)
data = nfp_vnic_get_hw_stats_strings(data,
nn->max_r_vecs,
false);
else
data = nfp_vnic_get_tlv_stats_strings(nn, data);
data = nfp_mac_get_stats_strings(netdev, data);
data = nfp_app_port_get_stats_strings(nn->port, data);
break;
case ETH_SS_TEST:
nfp_get_self_test_strings(netdev, data);
break;
}
}
static void
nfp_net_get_stats(struct net_device *netdev, struct ethtool_stats *stats,
u64 *data)
{
struct nfp_net *nn = netdev_priv(netdev);
data = nfp_vnic_get_sw_stats(netdev, data);
if (!nn->tlv_caps.vnic_stats_off)
data = nfp_vnic_get_hw_stats(data, nn->dp.ctrl_bar,
nn->max_r_vecs);
else
data = nfp_vnic_get_tlv_stats(nn, data);
data = nfp_mac_get_stats(netdev, data);
data = nfp_app_port_get_stats(nn->port, data);
}
static int nfp_net_get_sset_count(struct net_device *netdev, int sset)
{
struct nfp_net *nn = netdev_priv(netdev);
unsigned int cnt;
switch (sset) {
case ETH_SS_STATS:
cnt = nfp_vnic_get_sw_stats_count(netdev);
if (!nn->tlv_caps.vnic_stats_off)
cnt += nfp_vnic_get_hw_stats_count(nn->max_r_vecs);
else
cnt += nfp_vnic_get_tlv_stats_count(nn);
cnt += nfp_mac_get_stats_count(netdev);
cnt += nfp_app_port_get_stats_count(nn->port);
return cnt;
case ETH_SS_TEST:
return nfp_get_self_test_count(netdev);
default:
return -EOPNOTSUPP;
}
}
static void nfp_port_get_strings(struct net_device *netdev,
u32 stringset, u8 *data)
{
struct nfp_port *port = nfp_port_from_netdev(netdev);
switch (stringset) {
case ETH_SS_STATS:
if (nfp_port_is_vnic(port))
data = nfp_vnic_get_hw_stats_strings(data, 0, true);
else
data = nfp_mac_get_stats_strings(netdev, data);
data = nfp_app_port_get_stats_strings(port, data);
break;
case ETH_SS_TEST:
nfp_get_self_test_strings(netdev, data);
break;
}
}
static void
nfp_port_get_stats(struct net_device *netdev, struct ethtool_stats *stats,
u64 *data)
{
struct nfp_port *port = nfp_port_from_netdev(netdev);
if (nfp_port_is_vnic(port))
data = nfp_vnic_get_hw_stats(data, port->vnic, 0);
else
data = nfp_mac_get_stats(netdev, data);
data = nfp_app_port_get_stats(port, data);
}
static int nfp_port_get_sset_count(struct net_device *netdev, int sset)
{
struct nfp_port *port = nfp_port_from_netdev(netdev);
unsigned int count;
switch (sset) {
case ETH_SS_STATS:
if (nfp_port_is_vnic(port))
count = nfp_vnic_get_hw_stats_count(0);
else
count = nfp_mac_get_stats_count(netdev);
count += nfp_app_port_get_stats_count(port);
return count;
case ETH_SS_TEST:
return nfp_get_self_test_count(netdev);
default:
return -EOPNOTSUPP;
}
}
static int nfp_port_fec_ethtool_to_nsp(u32 fec)
{
switch (fec) {
case ETHTOOL_FEC_AUTO:
return NFP_FEC_AUTO_BIT;
case ETHTOOL_FEC_OFF:
return NFP_FEC_DISABLED_BIT;
case ETHTOOL_FEC_RS:
return NFP_FEC_REED_SOLOMON_BIT;
case ETHTOOL_FEC_BASER:
return NFP_FEC_BASER_BIT;
default:
/* NSP only supports a single mode at a time */
return -EOPNOTSUPP;
}
}
static u32 nfp_port_fec_nsp_to_ethtool(u32 fec)
{
u32 result = 0;
if (fec & NFP_FEC_AUTO)
result |= ETHTOOL_FEC_AUTO;
if (fec & NFP_FEC_BASER)
result |= ETHTOOL_FEC_BASER;
if (fec & NFP_FEC_REED_SOLOMON)
result |= ETHTOOL_FEC_RS;
if (fec & NFP_FEC_DISABLED)
result |= ETHTOOL_FEC_OFF;
return result ?: ETHTOOL_FEC_NONE;
}
static int
nfp_port_get_fecparam(struct net_device *netdev,
struct ethtool_fecparam *param)
{
struct nfp_eth_table_port *eth_port;
struct nfp_port *port;
param->active_fec = ETHTOOL_FEC_NONE;
param->fec = ETHTOOL_FEC_NONE;
port = nfp_port_from_netdev(netdev);
eth_port = nfp_port_get_eth_port(port);
if (!eth_port)
return -EOPNOTSUPP;
if (!nfp_eth_can_support_fec(eth_port))
return 0;
param->fec = nfp_port_fec_nsp_to_ethtool(eth_port->fec_modes_supported);
param->active_fec = nfp_port_fec_nsp_to_ethtool(BIT(eth_port->act_fec));
return 0;
}
static int
nfp_port_set_fecparam(struct net_device *netdev,
struct ethtool_fecparam *param)
{
struct nfp_eth_table_port *eth_port;
struct nfp_port *port;
int err, fec;
port = nfp_port_from_netdev(netdev);
eth_port = nfp_port_get_eth_port(port);
if (!eth_port)
return -EOPNOTSUPP;
if (!nfp_eth_can_support_fec(eth_port))
return -EOPNOTSUPP;
fec = nfp_port_fec_ethtool_to_nsp(param->fec);
if (fec < 0)
return fec;
err = nfp_eth_set_fec(port->app->cpp, eth_port->index, fec);
if (!err)
/* Only refresh if we did something */
nfp_net_refresh_port_table(port);
return err < 0 ? err : 0;
}
/* RX network flow classification (RSS, filters, etc)
*/
static u32 ethtool_flow_to_nfp_flag(u32 flow_type)
{
static const u32 xlate_ethtool_to_nfp[IPV6_FLOW + 1] = {
[TCP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_TCP,
[TCP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_TCP,
[UDP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_UDP,
[UDP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_UDP,
[IPV4_FLOW] = NFP_NET_CFG_RSS_IPV4,
[IPV6_FLOW] = NFP_NET_CFG_RSS_IPV6,
};
if (flow_type >= ARRAY_SIZE(xlate_ethtool_to_nfp))
return 0;
return xlate_ethtool_to_nfp[flow_type];
}
static int nfp_net_get_rss_hash_opts(struct nfp_net *nn,
struct ethtool_rxnfc *cmd)
{
u32 nfp_rss_flag;
cmd->data = 0;
if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
return -EOPNOTSUPP;
nfp_rss_flag = ethtool_flow_to_nfp_flag(cmd->flow_type);
if (!nfp_rss_flag)
return -EINVAL;
cmd->data |= RXH_IP_SRC | RXH_IP_DST;
if (nn->rss_cfg & nfp_rss_flag)
cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
return 0;
}
#define NFP_FS_MAX_ENTRY 1024
static int nfp_net_fs_to_ethtool(struct nfp_fs_entry *entry, struct ethtool_rxnfc *cmd)
{
struct ethtool_rx_flow_spec *fs = &cmd->fs;
unsigned int i;
switch (entry->flow_type & ~FLOW_RSS) {
case TCP_V4_FLOW:
case UDP_V4_FLOW:
case SCTP_V4_FLOW:
fs->h_u.tcp_ip4_spec.ip4src = entry->key.sip4;
fs->h_u.tcp_ip4_spec.ip4dst = entry->key.dip4;
fs->h_u.tcp_ip4_spec.psrc = entry->key.sport;
fs->h_u.tcp_ip4_spec.pdst = entry->key.dport;
fs->m_u.tcp_ip4_spec.ip4src = entry->msk.sip4;
fs->m_u.tcp_ip4_spec.ip4dst = entry->msk.dip4;
fs->m_u.tcp_ip4_spec.psrc = entry->msk.sport;
fs->m_u.tcp_ip4_spec.pdst = entry->msk.dport;
break;
case TCP_V6_FLOW:
case UDP_V6_FLOW:
case SCTP_V6_FLOW:
for (i = 0; i < 4; i++) {
fs->h_u.tcp_ip6_spec.ip6src[i] = entry->key.sip6[i];
fs->h_u.tcp_ip6_spec.ip6dst[i] = entry->key.dip6[i];
fs->m_u.tcp_ip6_spec.ip6src[i] = entry->msk.sip6[i];
fs->m_u.tcp_ip6_spec.ip6dst[i] = entry->msk.dip6[i];
}
fs->h_u.tcp_ip6_spec.psrc = entry->key.sport;
fs->h_u.tcp_ip6_spec.pdst = entry->key.dport;
fs->m_u.tcp_ip6_spec.psrc = entry->msk.sport;
fs->m_u.tcp_ip6_spec.pdst = entry->msk.dport;
break;
case IPV4_USER_FLOW:
fs->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
fs->h_u.usr_ip4_spec.ip4src = entry->key.sip4;
fs->h_u.usr_ip4_spec.ip4dst = entry->key.dip4;
fs->h_u.usr_ip4_spec.proto = entry->key.l4_proto;
fs->m_u.usr_ip4_spec.ip4src = entry->msk.sip4;
fs->m_u.usr_ip4_spec.ip4dst = entry->msk.dip4;
fs->m_u.usr_ip4_spec.proto = entry->msk.l4_proto;
break;
case IPV6_USER_FLOW:
for (i = 0; i < 4; i++) {
fs->h_u.usr_ip6_spec.ip6src[i] = entry->key.sip6[i];
fs->h_u.usr_ip6_spec.ip6dst[i] = entry->key.dip6[i];
fs->m_u.usr_ip6_spec.ip6src[i] = entry->msk.sip6[i];
fs->m_u.usr_ip6_spec.ip6dst[i] = entry->msk.dip6[i];
}
fs->h_u.usr_ip6_spec.l4_proto = entry->key.l4_proto;
fs->m_u.usr_ip6_spec.l4_proto = entry->msk.l4_proto;
break;
case ETHER_FLOW:
fs->h_u.ether_spec.h_proto = entry->key.l3_proto;
fs->m_u.ether_spec.h_proto = entry->msk.l3_proto;
break;
default:
return -EINVAL;
}
fs->flow_type = entry->flow_type;
fs->ring_cookie = entry->action;
if (fs->flow_type & FLOW_RSS) {
/* Only rss_context of 0 is supported. */
cmd->rss_context = 0;
/* RSS is used, mask the ring. */
fs->ring_cookie |= ETHTOOL_RX_FLOW_SPEC_RING;
}
return 0;
}
static int nfp_net_get_fs_rule(struct nfp_net *nn, struct ethtool_rxnfc *cmd)
{
struct nfp_fs_entry *entry;
if (!(nn->cap_w1 & NFP_NET_CFG_CTRL_FLOW_STEER))
return -EOPNOTSUPP;
if (cmd->fs.location >= NFP_FS_MAX_ENTRY)
return -EINVAL;
list_for_each_entry(entry, &nn->fs.list, node) {
if (entry->loc == cmd->fs.location)
return nfp_net_fs_to_ethtool(entry, cmd);
if (entry->loc > cmd->fs.location)
/* no need to continue */
return -ENOENT;
}
return -ENOENT;
}
static int nfp_net_get_fs_loc(struct nfp_net *nn, u32 *rule_locs)
{
struct nfp_fs_entry *entry;
u32 count = 0;
if (!(nn->cap_w1 & NFP_NET_CFG_CTRL_FLOW_STEER))
return -EOPNOTSUPP;
list_for_each_entry(entry, &nn->fs.list, node)
rule_locs[count++] = entry->loc;
return 0;
}
static int nfp_net_get_rxnfc(struct net_device *netdev,
struct ethtool_rxnfc *cmd, u32 *rule_locs)
{
struct nfp_net *nn = netdev_priv(netdev);
switch (cmd->cmd) {
case ETHTOOL_GRXRINGS:
cmd->data = nn->dp.num_rx_rings;
return 0;
case ETHTOOL_GRXCLSRLCNT:
cmd->rule_cnt = nn->fs.count;
return 0;
case ETHTOOL_GRXCLSRULE:
return nfp_net_get_fs_rule(nn, cmd);
case ETHTOOL_GRXCLSRLALL:
cmd->data = NFP_FS_MAX_ENTRY;
return nfp_net_get_fs_loc(nn, rule_locs);
case ETHTOOL_GRXFH:
return nfp_net_get_rss_hash_opts(nn, cmd);
default:
return -EOPNOTSUPP;
}
}
static int nfp_net_set_rss_hash_opt(struct nfp_net *nn,
struct ethtool_rxnfc *nfc)
{
u32 new_rss_cfg = nn->rss_cfg;
u32 nfp_rss_flag;
int err;
if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
return -EOPNOTSUPP;
/* RSS only supports IP SA/DA and L4 src/dst ports */
if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
RXH_L4_B_0_1 | RXH_L4_B_2_3))
return -EINVAL;
/* We need at least the IP SA/DA fields for hashing */
if (!(nfc->data & RXH_IP_SRC) ||
!(nfc->data & RXH_IP_DST))
return -EINVAL;
nfp_rss_flag = ethtool_flow_to_nfp_flag(nfc->flow_type);
if (!nfp_rss_flag)
return -EINVAL;
switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
case 0:
new_rss_cfg &= ~nfp_rss_flag;
break;
case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
new_rss_cfg |= nfp_rss_flag;
break;
default:
return -EINVAL;
}
new_rss_cfg |= FIELD_PREP(NFP_NET_CFG_RSS_HFUNC, nn->rss_hfunc);
new_rss_cfg |= NFP_NET_CFG_RSS_MASK;
if (new_rss_cfg == nn->rss_cfg)
return 0;
writel(new_rss_cfg, nn->dp.ctrl_bar + NFP_NET_CFG_RSS_CTRL);
err = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS);
if (err)
return err;
nn->rss_cfg = new_rss_cfg;
nn_dbg(nn, "Changed RSS config to 0x%x\n", nn->rss_cfg);
return 0;
}
static int nfp_net_fs_from_ethtool(struct nfp_fs_entry *entry, struct ethtool_rx_flow_spec *fs)
{
unsigned int i;
/* FLOW_EXT/FLOW_MAC_EXT is not supported. */
switch (fs->flow_type & ~FLOW_RSS) {
case TCP_V4_FLOW:
case UDP_V4_FLOW:
case SCTP_V4_FLOW:
entry->msk.sip4 = fs->m_u.tcp_ip4_spec.ip4src;
entry->msk.dip4 = fs->m_u.tcp_ip4_spec.ip4dst;
entry->msk.sport = fs->m_u.tcp_ip4_spec.psrc;
entry->msk.dport = fs->m_u.tcp_ip4_spec.pdst;
entry->key.sip4 = fs->h_u.tcp_ip4_spec.ip4src & entry->msk.sip4;
entry->key.dip4 = fs->h_u.tcp_ip4_spec.ip4dst & entry->msk.dip4;
entry->key.sport = fs->h_u.tcp_ip4_spec.psrc & entry->msk.sport;
entry->key.dport = fs->h_u.tcp_ip4_spec.pdst & entry->msk.dport;
break;
case TCP_V6_FLOW:
case UDP_V6_FLOW:
case SCTP_V6_FLOW:
for (i = 0; i < 4; i++) {
entry->msk.sip6[i] = fs->m_u.tcp_ip6_spec.ip6src[i];
entry->msk.dip6[i] = fs->m_u.tcp_ip6_spec.ip6dst[i];
entry->key.sip6[i] = fs->h_u.tcp_ip6_spec.ip6src[i] & entry->msk.sip6[i];
entry->key.dip6[i] = fs->h_u.tcp_ip6_spec.ip6dst[i] & entry->msk.dip6[i];
}
entry->msk.sport = fs->m_u.tcp_ip6_spec.psrc;
entry->msk.dport = fs->m_u.tcp_ip6_spec.pdst;
entry->key.sport = fs->h_u.tcp_ip6_spec.psrc & entry->msk.sport;
entry->key.dport = fs->h_u.tcp_ip6_spec.pdst & entry->msk.dport;
break;
case IPV4_USER_FLOW:
entry->msk.sip4 = fs->m_u.usr_ip4_spec.ip4src;
entry->msk.dip4 = fs->m_u.usr_ip4_spec.ip4dst;
entry->msk.l4_proto = fs->m_u.usr_ip4_spec.proto;
entry->key.sip4 = fs->h_u.usr_ip4_spec.ip4src & entry->msk.sip4;
entry->key.dip4 = fs->h_u.usr_ip4_spec.ip4dst & entry->msk.dip4;
entry->key.l4_proto = fs->h_u.usr_ip4_spec.proto & entry->msk.l4_proto;
break;
case IPV6_USER_FLOW:
for (i = 0; i < 4; i++) {
entry->msk.sip6[i] = fs->m_u.usr_ip6_spec.ip6src[i];
entry->msk.dip6[i] = fs->m_u.usr_ip6_spec.ip6dst[i];
entry->key.sip6[i] = fs->h_u.usr_ip6_spec.ip6src[i] & entry->msk.sip6[i];
entry->key.dip6[i] = fs->h_u.usr_ip6_spec.ip6dst[i] & entry->msk.dip6[i];
}
entry->msk.l4_proto = fs->m_u.usr_ip6_spec.l4_proto;
entry->key.l4_proto = fs->h_u.usr_ip6_spec.l4_proto & entry->msk.l4_proto;
break;
case ETHER_FLOW:
entry->msk.l3_proto = fs->m_u.ether_spec.h_proto;
entry->key.l3_proto = fs->h_u.ether_spec.h_proto & entry->msk.l3_proto;
break;
default:
return -EINVAL;
}
switch (fs->flow_type & ~FLOW_RSS) {
case TCP_V4_FLOW:
case TCP_V6_FLOW:
entry->key.l4_proto = IPPROTO_TCP;
entry->msk.l4_proto = 0xff;
break;
case UDP_V4_FLOW:
case UDP_V6_FLOW:
entry->key.l4_proto = IPPROTO_UDP;
entry->msk.l4_proto = 0xff;
break;
case SCTP_V4_FLOW:
case SCTP_V6_FLOW:
entry->key.l4_proto = IPPROTO_SCTP;
entry->msk.l4_proto = 0xff;
break;
}
entry->flow_type = fs->flow_type;
entry->action = fs->ring_cookie;
entry->loc = fs->location;
return 0;
}
static int nfp_net_fs_check_existing(struct nfp_net *nn, struct nfp_fs_entry *new)
{
struct nfp_fs_entry *entry;
list_for_each_entry(entry, &nn->fs.list, node) {
if (new->loc != entry->loc &&
!((new->flow_type ^ entry->flow_type) & ~FLOW_RSS) &&
!memcmp(&new->key, &entry->key, sizeof(new->key)) &&
!memcmp(&new->msk, &entry->msk, sizeof(new->msk)))
return entry->loc;
}
/* -1 means no duplicates */
return -1;
}
static int nfp_net_fs_add(struct nfp_net *nn, struct ethtool_rxnfc *cmd)
{
struct ethtool_rx_flow_spec *fs = &cmd->fs;
struct nfp_fs_entry *new, *entry;
bool unsupp_mask;
int err, id;
if (!(nn->cap_w1 & NFP_NET_CFG_CTRL_FLOW_STEER))
return -EOPNOTSUPP;
/* Only default RSS context(0) is supported. */
if ((fs->flow_type & FLOW_RSS) && cmd->rss_context)
return -EOPNOTSUPP;
if (fs->location >= NFP_FS_MAX_ENTRY)
return -EINVAL;
if (fs->ring_cookie != RX_CLS_FLOW_DISC &&
fs->ring_cookie >= nn->dp.num_rx_rings)
return -EINVAL;
/* FLOW_EXT/FLOW_MAC_EXT is not supported. */
switch (fs->flow_type & ~FLOW_RSS) {
case TCP_V4_FLOW:
case UDP_V4_FLOW:
case SCTP_V4_FLOW:
unsupp_mask = !!fs->m_u.tcp_ip4_spec.tos;
break;
case TCP_V6_FLOW:
case UDP_V6_FLOW:
case SCTP_V6_FLOW:
unsupp_mask = !!fs->m_u.tcp_ip6_spec.tclass;
break;
case IPV4_USER_FLOW:
unsupp_mask = !!fs->m_u.usr_ip4_spec.l4_4_bytes ||
!!fs->m_u.usr_ip4_spec.tos ||
!!fs->m_u.usr_ip4_spec.ip_ver;
/* ip_ver must be ETH_RX_NFC_IP4. */
unsupp_mask |= fs->h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4;
break;
case IPV6_USER_FLOW:
unsupp_mask = !!fs->m_u.usr_ip6_spec.l4_4_bytes ||
!!fs->m_u.usr_ip6_spec.tclass;
break;
case ETHER_FLOW:
if (fs->h_u.ether_spec.h_proto == htons(ETH_P_IP) ||
fs->h_u.ether_spec.h_proto == htons(ETH_P_IPV6)) {
nn_err(nn, "Please use ip4/ip6 flow type instead.\n");
return -EOPNOTSUPP;
}
/* Only unmasked ethtype is supported. */
unsupp_mask = !is_zero_ether_addr(fs->m_u.ether_spec.h_dest) ||
!is_zero_ether_addr(fs->m_u.ether_spec.h_source) ||
(fs->m_u.ether_spec.h_proto != htons(0xffff));
break;
default:
return -EOPNOTSUPP;
}
if (unsupp_mask)
return -EOPNOTSUPP;
new = kzalloc(sizeof(*new), GFP_KERNEL);
if (!new)
return -ENOMEM;
nfp_net_fs_from_ethtool(new, fs);
id = nfp_net_fs_check_existing(nn, new);
if (id >= 0) {
nn_err(nn, "Identical rule is existing in %d.\n", id);
err = -EINVAL;
goto err;
}
/* Insert to list in ascending order of location. */
list_for_each_entry(entry, &nn->fs.list, node) {
if (entry->loc == fs->location) {
err = nfp_net_fs_del_hw(nn, entry);
if (err)
goto err;
nn->fs.count--;
err = nfp_net_fs_add_hw(nn, new);
if (err)
goto err;
nn->fs.count++;
list_replace(&entry->node, &new->node);
kfree(entry);
return 0;
}
if (entry->loc > fs->location)
break;
}
if (nn->fs.count == NFP_FS_MAX_ENTRY) {
err = -ENOSPC;
goto err;
}
err = nfp_net_fs_add_hw(nn, new);
if (err)
goto err;
list_add_tail(&new->node, &entry->node);
nn->fs.count++;
return 0;
err:
kfree(new);
return err;
}
static int nfp_net_fs_del(struct nfp_net *nn, struct ethtool_rxnfc *cmd)
{
struct nfp_fs_entry *entry;
int err;
if (!(nn->cap_w1 & NFP_NET_CFG_CTRL_FLOW_STEER))
return -EOPNOTSUPP;
if (!nn->fs.count || cmd->fs.location >= NFP_FS_MAX_ENTRY)
return -EINVAL;
list_for_each_entry(entry, &nn->fs.list, node) {
if (entry->loc == cmd->fs.location) {
err = nfp_net_fs_del_hw(nn, entry);
if (err)
return err;
list_del(&entry->node);
kfree(entry);
nn->fs.count--;
return 0;
} else if (entry->loc > cmd->fs.location) {
/* no need to continue */
break;
}
}
return -ENOENT;
}
static int nfp_net_set_rxnfc(struct net_device *netdev,
struct ethtool_rxnfc *cmd)
{
struct nfp_net *nn = netdev_priv(netdev);
switch (cmd->cmd) {
case ETHTOOL_SRXFH:
return nfp_net_set_rss_hash_opt(nn, cmd);
case ETHTOOL_SRXCLSRLINS:
return nfp_net_fs_add(nn, cmd);
case ETHTOOL_SRXCLSRLDEL:
return nfp_net_fs_del(nn, cmd);
default:
return -EOPNOTSUPP;
}
}
static u32 nfp_net_get_rxfh_indir_size(struct net_device *netdev)
{
struct nfp_net *nn = netdev_priv(netdev);
if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
return 0;
return ARRAY_SIZE(nn->rss_itbl);
}
static u32 nfp_net_get_rxfh_key_size(struct net_device *netdev)
{
struct nfp_net *nn = netdev_priv(netdev);
if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
return -EOPNOTSUPP;
return nfp_net_rss_key_sz(nn);
}
static int nfp_net_get_rxfh(struct net_device *netdev,
struct ethtool_rxfh_param *rxfh)
{
struct nfp_net *nn = netdev_priv(netdev);
int i;
if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
return -EOPNOTSUPP;
if (rxfh->indir)
for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++)
rxfh->indir[i] = nn->rss_itbl[i];
if (rxfh->key)
memcpy(rxfh->key, nn->rss_key, nfp_net_rss_key_sz(nn));
rxfh->hfunc = nn->rss_hfunc;
if (rxfh->hfunc >= 1 << ETH_RSS_HASH_FUNCS_COUNT)
rxfh->hfunc = ETH_RSS_HASH_UNKNOWN;
return 0;
}
static int nfp_net_set_rxfh(struct net_device *netdev,
struct ethtool_rxfh_param *rxfh,
struct netlink_ext_ack *extack)
{
struct nfp_net *nn = netdev_priv(netdev);
int i;
if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY) ||
!(rxfh->hfunc == ETH_RSS_HASH_NO_CHANGE ||
rxfh->hfunc == nn->rss_hfunc))
return -EOPNOTSUPP;
if (!rxfh->key && !rxfh->indir)
return 0;
if (rxfh->key) {
memcpy(nn->rss_key, rxfh->key, nfp_net_rss_key_sz(nn));
nfp_net_rss_write_key(nn);
}
if (rxfh->indir) {
for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++)
nn->rss_itbl[i] = rxfh->indir[i];
nfp_net_rss_write_itbl(nn);
}
return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS);
}
/* Dump BAR registers
*/
static int nfp_net_get_regs_len(struct net_device *netdev)
{
return NFP_NET_CFG_BAR_SZ;
}
static void nfp_net_get_regs(struct net_device *netdev,
struct ethtool_regs *regs, void *p)
{
struct nfp_net *nn = netdev_priv(netdev);
u32 *regs_buf = p;
int i;
regs->version = nn_readl(nn, NFP_NET_CFG_VERSION);
for (i = 0; i < NFP_NET_CFG_BAR_SZ / sizeof(u32); i++)
regs_buf[i] = readl(nn->dp.ctrl_bar + (i * sizeof(u32)));
}
static int nfp_net_get_coalesce(struct net_device *netdev,
struct ethtool_coalesce *ec,
struct kernel_ethtool_coalesce *kernel_coal,
struct netlink_ext_ack *extack)
{
struct nfp_net *nn = netdev_priv(netdev);
if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD))
return -EOPNOTSUPP;
ec->use_adaptive_rx_coalesce = nn->rx_coalesce_adapt_on;
ec->use_adaptive_tx_coalesce = nn->tx_coalesce_adapt_on;
ec->rx_coalesce_usecs = nn->rx_coalesce_usecs;
ec->rx_max_coalesced_frames = nn->rx_coalesce_max_frames;
ec->tx_coalesce_usecs = nn->tx_coalesce_usecs;
ec->tx_max_coalesced_frames = nn->tx_coalesce_max_frames;
return 0;
}
/* Other debug dumps
*/
static int
nfp_dump_nsp_diag(struct nfp_app *app, struct ethtool_dump *dump, void *buffer)
{
struct nfp_resource *res;
int ret;
if (!app)
return -EOPNOTSUPP;
dump->version = 1;
dump->flag = NFP_DUMP_NSP_DIAG;
res = nfp_resource_acquire(app->cpp, NFP_RESOURCE_NSP_DIAG);
if (IS_ERR(res))
return PTR_ERR(res);
if (buffer) {
if (dump->len != nfp_resource_size(res)) {
ret = -EINVAL;
goto exit_release;
}
ret = nfp_cpp_read(app->cpp, nfp_resource_cpp_id(res),
nfp_resource_address(res),
buffer, dump->len);
if (ret != dump->len)
ret = ret < 0 ? ret : -EIO;
else
ret = 0;
} else {
dump->len = nfp_resource_size(res);
ret = 0;
}
exit_release:
nfp_resource_release(res);
return ret;
}
/* Set the dump flag/level. Calculate the dump length for flag > 0 only (new TLV
* based dumps), since flag 0 (default) calculates the length in
* nfp_app_get_dump_flag(), and we need to support triggering a level 0 dump
* without setting the flag first, for backward compatibility.
*/
static int nfp_app_set_dump(struct net_device *netdev, struct ethtool_dump *val)
{
struct nfp_app *app = nfp_app_from_netdev(netdev);
s64 len;
if (!app)
return -EOPNOTSUPP;
if (val->flag == NFP_DUMP_NSP_DIAG) {
app->pf->dump_flag = val->flag;
return 0;
}
if (!app->pf->dumpspec)
return -EOPNOTSUPP;
len = nfp_net_dump_calculate_size(app->pf, app->pf->dumpspec,
val->flag);
if (len < 0)
return len;
app->pf->dump_flag = val->flag;
app->pf->dump_len = len;
return 0;
}
static int
nfp_app_get_dump_flag(struct net_device *netdev, struct ethtool_dump *dump)
{
struct nfp_app *app = nfp_app_from_netdev(netdev);
if (!app)
return -EOPNOTSUPP;
if (app->pf->dump_flag == NFP_DUMP_NSP_DIAG)
return nfp_dump_nsp_diag(app, dump, NULL);
dump->flag = app->pf->dump_flag;
dump->len = app->pf->dump_len;
return 0;
}
static int
nfp_app_get_dump_data(struct net_device *netdev, struct ethtool_dump *dump,
void *buffer)
{
struct nfp_app *app = nfp_app_from_netdev(netdev);
if (!app)
return -EOPNOTSUPP;
if (app->pf->dump_flag == NFP_DUMP_NSP_DIAG)
return nfp_dump_nsp_diag(app, dump, buffer);
dump->flag = app->pf->dump_flag;
dump->len = app->pf->dump_len;
return nfp_net_dump_populate_buffer(app->pf, app->pf->dumpspec, dump,
buffer);
}
static int
nfp_port_get_module_info(struct net_device *netdev,
struct ethtool_modinfo *modinfo)
{
struct nfp_eth_table_port *eth_port;
struct nfp_port *port;
unsigned int read_len;
struct nfp_nsp *nsp;
int err = 0;
u8 data;
port = nfp_port_from_netdev(netdev);
if (!port)
return -EOPNOTSUPP;
/* update port state to get latest interface */
set_bit(NFP_PORT_CHANGED, &port->flags);
eth_port = nfp_port_get_eth_port(port);
if (!eth_port)
return -EOPNOTSUPP;
nsp = nfp_nsp_open(port->app->cpp);
if (IS_ERR(nsp)) {
err = PTR_ERR(nsp);
netdev_err(netdev, "Failed to access the NSP: %d\n", err);
return err;
}
if (!nfp_nsp_has_read_module_eeprom(nsp)) {
netdev_info(netdev, "reading module EEPROM not supported. Please update flash\n");
err = -EOPNOTSUPP;
goto exit_close_nsp;
}
switch (eth_port->interface) {
case NFP_INTERFACE_SFP:
case NFP_INTERFACE_SFP28:
err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index,
SFP_SFF8472_COMPLIANCE, &data,
1, &read_len);
if (err < 0)
goto exit_close_nsp;
if (!data) {
modinfo->type = ETH_MODULE_SFF_8079;
modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
} else {
modinfo->type = ETH_MODULE_SFF_8472;
modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
}
break;
case NFP_INTERFACE_QSFP:
err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index,
SFP_SFF_REV_COMPLIANCE, &data,
1, &read_len);
if (err < 0)
goto exit_close_nsp;
if (data < 0x3) {
modinfo->type = ETH_MODULE_SFF_8436;
modinfo->eeprom_len = ETH_MODULE_SFF_8436_MAX_LEN;
} else {
modinfo->type = ETH_MODULE_SFF_8636;
modinfo->eeprom_len = ETH_MODULE_SFF_8636_MAX_LEN;
}
break;
case NFP_INTERFACE_QSFP28:
modinfo->type = ETH_MODULE_SFF_8636;
modinfo->eeprom_len = ETH_MODULE_SFF_8636_MAX_LEN;
break;
default:
netdev_err(netdev, "Unsupported module 0x%x detected\n",
eth_port->interface);
err = -EINVAL;
}
exit_close_nsp:
nfp_nsp_close(nsp);
return err;
}
static int
nfp_port_get_module_eeprom(struct net_device *netdev,
struct ethtool_eeprom *eeprom, u8 *data)
{
struct nfp_eth_table_port *eth_port;
struct nfp_port *port;
struct nfp_nsp *nsp;
int err;
port = nfp_port_from_netdev(netdev);
eth_port = __nfp_port_get_eth_port(port);
if (!eth_port)
return -EOPNOTSUPP;
nsp = nfp_nsp_open(port->app->cpp);
if (IS_ERR(nsp)) {
err = PTR_ERR(nsp);
netdev_err(netdev, "Failed to access the NSP: %d\n", err);
return err;
}
if (!nfp_nsp_has_read_module_eeprom(nsp)) {
netdev_info(netdev, "reading module EEPROM not supported. Please update flash\n");
err = -EOPNOTSUPP;
goto exit_close_nsp;
}
err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index,
eeprom->offset, data, eeprom->len,
&eeprom->len);
if (err < 0) {
if (eeprom->len) {
netdev_warn(netdev,
"Incomplete read from module EEPROM: %d\n",
err);
err = 0;
} else {
netdev_err(netdev,
"Reading from module EEPROM failed: %d\n",
err);
}
}
exit_close_nsp:
nfp_nsp_close(nsp);
return err;
}
static int nfp_net_set_coalesce(struct net_device *netdev,
struct ethtool_coalesce *ec,
struct kernel_ethtool_coalesce *kernel_coal,
struct netlink_ext_ack *extack)
{
struct nfp_net *nn = netdev_priv(netdev);
unsigned int factor;
/* Compute factor used to convert coalesce '_usecs' parameters to
* ME timestamp ticks. There are 16 ME clock cycles for each timestamp
* count.
*/
factor = nn->tlv_caps.me_freq_mhz / 16;
/* Each pair of (usecs, max_frames) fields specifies that interrupts
* should be coalesced until
* (usecs > 0 && time_since_first_completion >= usecs) ||
* (max_frames > 0 && completed_frames >= max_frames)
*
* It is illegal to set both usecs and max_frames to zero as this would
* cause interrupts to never be generated. To disable coalescing, set
* usecs = 0 and max_frames = 1.
*
* Some implementations ignore the value of max_frames and use the
* condition time_since_first_completion >= usecs
*/
if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD))
return -EOPNOTSUPP;
/* ensure valid configuration */
if (!ec->rx_coalesce_usecs && !ec->rx_max_coalesced_frames) {
NL_SET_ERR_MSG_MOD(extack,
"rx-usecs and rx-frames cannot both be zero");
return -EINVAL;
}
if (!ec->tx_coalesce_usecs && !ec->tx_max_coalesced_frames) {
NL_SET_ERR_MSG_MOD(extack,
"tx-usecs and tx-frames cannot both be zero");
return -EINVAL;
}
if (nfp_net_coalesce_para_check(ec->rx_coalesce_usecs * factor)) {
NL_SET_ERR_MSG_MOD(extack, "rx-usecs too large");
return -EINVAL;
}
if (nfp_net_coalesce_para_check(ec->rx_max_coalesced_frames)) {
NL_SET_ERR_MSG_MOD(extack, "rx-frames too large");
return -EINVAL;
}
if (nfp_net_coalesce_para_check(ec->tx_coalesce_usecs * factor)) {
NL_SET_ERR_MSG_MOD(extack, "tx-usecs too large");
return -EINVAL;
}
if (nfp_net_coalesce_para_check(ec->tx_max_coalesced_frames)) {
NL_SET_ERR_MSG_MOD(extack, "tx-frames too large");
return -EINVAL;
}
/* configuration is valid */
nn->rx_coalesce_adapt_on = !!ec->use_adaptive_rx_coalesce;
nn->tx_coalesce_adapt_on = !!ec->use_adaptive_tx_coalesce;
nn->rx_coalesce_usecs = ec->rx_coalesce_usecs;
nn->rx_coalesce_max_frames = ec->rx_max_coalesced_frames;
nn->tx_coalesce_usecs = ec->tx_coalesce_usecs;
nn->tx_coalesce_max_frames = ec->tx_max_coalesced_frames;
/* write configuration to device */
nfp_net_coalesce_write_cfg(nn);
return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_IRQMOD);
}
static void nfp_net_get_channels(struct net_device *netdev,
struct ethtool_channels *channel)
{
struct nfp_net *nn = netdev_priv(netdev);
unsigned int num_tx_rings;
num_tx_rings = nn->dp.num_tx_rings;
if (nn->dp.xdp_prog)
num_tx_rings -= nn->dp.num_rx_rings;
channel->max_rx = min(nn->max_rx_rings, nn->max_r_vecs);
channel->max_tx = min(nn->max_tx_rings, nn->max_r_vecs);
channel->max_combined = min(channel->max_rx, channel->max_tx);
channel->max_other = NFP_NET_NON_Q_VECTORS;
channel->combined_count = min(nn->dp.num_rx_rings, num_tx_rings);
channel->rx_count = nn->dp.num_rx_rings - channel->combined_count;
channel->tx_count = num_tx_rings - channel->combined_count;
channel->other_count = NFP_NET_NON_Q_VECTORS;
}
static int nfp_net_set_num_rings(struct nfp_net *nn, unsigned int total_rx,
unsigned int total_tx)
{
struct nfp_net_dp *dp;
dp = nfp_net_clone_dp(nn);
if (!dp)
return -ENOMEM;
dp->num_rx_rings = total_rx;
dp->num_tx_rings = total_tx;
/* nfp_net_check_config() will catch num_tx_rings > nn->max_tx_rings */
if (dp->xdp_prog)
dp->num_tx_rings += total_rx;
return nfp_net_ring_reconfig(nn, dp, NULL);
}
static int nfp_net_set_channels(struct net_device *netdev,
struct ethtool_channels *channel)
{
struct nfp_net *nn = netdev_priv(netdev);
unsigned int total_rx, total_tx;
/* Reject unsupported */
if (channel->other_count != NFP_NET_NON_Q_VECTORS ||
(channel->rx_count && channel->tx_count))
return -EINVAL;
total_rx = channel->combined_count + channel->rx_count;
total_tx = channel->combined_count + channel->tx_count;
if (total_rx > min(nn->max_rx_rings, nn->max_r_vecs) ||
total_tx > min(nn->max_tx_rings, nn->max_r_vecs))
return -EINVAL;
return nfp_net_set_num_rings(nn, total_rx, total_tx);
}
static int nfp_port_set_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pause)
{
struct nfp_eth_table_port *eth_port;
struct nfp_port *port;
int err;
port = nfp_port_from_netdev(netdev);
eth_port = nfp_port_get_eth_port(port);
if (!eth_port)
return -EOPNOTSUPP;
if (pause->autoneg != AUTONEG_DISABLE)
return -EOPNOTSUPP;
err = nfp_eth_set_pauseparam(port->app->cpp, eth_port->index,
pause->tx_pause, pause->rx_pause);
if (!err)
/* Only refresh if we did something */
nfp_net_refresh_port_table(port);
return err < 0 ? err : 0;
}
static void nfp_port_get_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pause)
{
struct nfp_eth_table_port *eth_port;
struct nfp_port *port;
port = nfp_port_from_netdev(netdev);
eth_port = nfp_port_get_eth_port(port);
if (!eth_port)
return;
/* Currently pause frame autoneg is fixed */
pause->autoneg = AUTONEG_DISABLE;
pause->rx_pause = eth_port->rx_pause;
pause->tx_pause = eth_port->tx_pause;
}
static int nfp_net_set_phys_id(struct net_device *netdev,
enum ethtool_phys_id_state state)
{
struct nfp_eth_table_port *eth_port;
struct nfp_port *port;
int err;
port = nfp_port_from_netdev(netdev);
eth_port = __nfp_port_get_eth_port(port);
if (!eth_port)
return -EOPNOTSUPP;
switch (state) {
case ETHTOOL_ID_ACTIVE:
/* Control LED to blink */
err = nfp_eth_set_idmode(port->app->cpp, eth_port->index, 1);
break;
case ETHTOOL_ID_INACTIVE:
/* Control LED to normal mode */
err = nfp_eth_set_idmode(port->app->cpp, eth_port->index, 0);
break;
case ETHTOOL_ID_ON:
case ETHTOOL_ID_OFF:
default:
return -EOPNOTSUPP;
}
return err;
}
#define NFP_EEPROM_LEN ETH_ALEN
static int
nfp_net_get_eeprom_len(struct net_device *netdev)
{
struct nfp_eth_table_port *eth_port;
struct nfp_port *port;
port = nfp_port_from_netdev(netdev);
eth_port = __nfp_port_get_eth_port(port);
if (!eth_port)
return 0;
return NFP_EEPROM_LEN;
}
static int
nfp_net_get_nsp_hwindex(struct net_device *netdev,
struct nfp_nsp **nspptr,
u32 *index)
{
struct nfp_eth_table_port *eth_port;
struct nfp_port *port;
struct nfp_nsp *nsp;
int err;
port = nfp_port_from_netdev(netdev);
eth_port = __nfp_port_get_eth_port(port);
if (!eth_port)
return -EOPNOTSUPP;
nsp = nfp_nsp_open(port->app->cpp);
if (IS_ERR(nsp)) {
err = PTR_ERR(nsp);
netdev_err(netdev, "Failed to access the NSP: %d\n", err);
return err;
}
if (!nfp_nsp_has_hwinfo_lookup(nsp)) {
netdev_err(netdev, "NSP doesn't support PF MAC generation\n");
nfp_nsp_close(nsp);
return -EOPNOTSUPP;
}
*nspptr = nsp;
*index = eth_port->eth_index;
return 0;
}
static int
nfp_net_get_port_mac_by_hwinfo(struct net_device *netdev,
u8 *mac_addr)
{
char hwinfo[32] = {};
struct nfp_nsp *nsp;
u32 index;
int err;
err = nfp_net_get_nsp_hwindex(netdev, &nsp, &index);
if (err)
return err;
snprintf(hwinfo, sizeof(hwinfo), "eth%u.mac", index);
err = nfp_nsp_hwinfo_lookup(nsp, hwinfo, sizeof(hwinfo));
nfp_nsp_close(nsp);
if (err) {
netdev_err(netdev, "Reading persistent MAC address failed: %d\n",
err);
return -EOPNOTSUPP;
}
if (sscanf(hwinfo, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
&mac_addr[0], &mac_addr[1], &mac_addr[2],
&mac_addr[3], &mac_addr[4], &mac_addr[5]) != 6) {
netdev_err(netdev, "Can't parse persistent MAC address (%s)\n",
hwinfo);
return -EOPNOTSUPP;
}
return 0;
}
static int
nfp_net_set_port_mac_by_hwinfo(struct net_device *netdev,
u8 *mac_addr)
{
char hwinfo[32] = {};
struct nfp_nsp *nsp;
u32 index;
int err;
err = nfp_net_get_nsp_hwindex(netdev, &nsp, &index);
if (err)
return err;
snprintf(hwinfo, sizeof(hwinfo),
"eth%u.mac=%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
index, mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3],
mac_addr[4], mac_addr[5]);
err = nfp_nsp_hwinfo_set(nsp, hwinfo, sizeof(hwinfo));
nfp_nsp_close(nsp);
if (err) {
netdev_err(netdev, "HWinfo set failed: %d, hwinfo: %s\n",
err, hwinfo);
return -EOPNOTSUPP;
}
return 0;
}
static int
nfp_net_get_eeprom(struct net_device *netdev,
struct ethtool_eeprom *eeprom, u8 *bytes)
{
struct nfp_app *app = nfp_app_from_netdev(netdev);
u8 buf[NFP_EEPROM_LEN] = {};
if (nfp_net_get_port_mac_by_hwinfo(netdev, buf))
return -EOPNOTSUPP;
if (eeprom->len == 0)
return -EINVAL;
eeprom->magic = app->pdev->vendor | (app->pdev->device << 16);
memcpy(bytes, buf + eeprom->offset, eeprom->len);
return 0;
}
static int
nfp_net_set_eeprom(struct net_device *netdev,
struct ethtool_eeprom *eeprom, u8 *bytes)
{
struct nfp_app *app = nfp_app_from_netdev(netdev);
u8 buf[NFP_EEPROM_LEN] = {};
if (nfp_net_get_port_mac_by_hwinfo(netdev, buf))
return -EOPNOTSUPP;
if (eeprom->len == 0)
return -EINVAL;
if (eeprom->magic != (app->pdev->vendor | app->pdev->device << 16))
return -EINVAL;
memcpy(buf + eeprom->offset, bytes, eeprom->len);
if (nfp_net_set_port_mac_by_hwinfo(netdev, buf))
return -EOPNOTSUPP;
return 0;
}
static const struct ethtool_ops nfp_net_ethtool_ops = {
.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
ETHTOOL_COALESCE_MAX_FRAMES |
ETHTOOL_COALESCE_USE_ADAPTIVE,
.get_drvinfo = nfp_net_get_drvinfo,
.nway_reset = nfp_net_nway_reset,
.get_link = ethtool_op_get_link,
.get_ringparam = nfp_net_get_ringparam,
.set_ringparam = nfp_net_set_ringparam,
.self_test = nfp_net_self_test,
.get_strings = nfp_net_get_strings,
.get_ethtool_stats = nfp_net_get_stats,
.get_sset_count = nfp_net_get_sset_count,
.get_rxnfc = nfp_net_get_rxnfc,
.set_rxnfc = nfp_net_set_rxnfc,
.get_rxfh_indir_size = nfp_net_get_rxfh_indir_size,
.get_rxfh_key_size = nfp_net_get_rxfh_key_size,
.get_rxfh = nfp_net_get_rxfh,
.set_rxfh = nfp_net_set_rxfh,
.get_regs_len = nfp_net_get_regs_len,
.get_regs = nfp_net_get_regs,
.set_dump = nfp_app_set_dump,
.get_dump_flag = nfp_app_get_dump_flag,
.get_dump_data = nfp_app_get_dump_data,
.get_eeprom_len = nfp_net_get_eeprom_len,
.get_eeprom = nfp_net_get_eeprom,
.set_eeprom = nfp_net_set_eeprom,
.get_module_info = nfp_port_get_module_info,
.get_module_eeprom = nfp_port_get_module_eeprom,
.get_coalesce = nfp_net_get_coalesce,
.set_coalesce = nfp_net_set_coalesce,
.get_channels = nfp_net_get_channels,
.set_channels = nfp_net_set_channels,
.get_link_ksettings = nfp_net_get_link_ksettings,
.set_link_ksettings = nfp_net_set_link_ksettings,
.get_fecparam = nfp_port_get_fecparam,
.set_fecparam = nfp_port_set_fecparam,
.set_pauseparam = nfp_port_set_pauseparam,
.get_pauseparam = nfp_port_get_pauseparam,
.set_phys_id = nfp_net_set_phys_id,
.get_ts_info = ethtool_op_get_ts_info,
};
const struct ethtool_ops nfp_port_ethtool_ops = {
.get_drvinfo = nfp_app_get_drvinfo,
.nway_reset = nfp_net_nway_reset,
.get_link = ethtool_op_get_link,
.get_strings = nfp_port_get_strings,
.get_ethtool_stats = nfp_port_get_stats,
.self_test = nfp_net_self_test,
.get_sset_count = nfp_port_get_sset_count,
.set_dump = nfp_app_set_dump,
.get_dump_flag = nfp_app_get_dump_flag,
.get_dump_data = nfp_app_get_dump_data,
.get_eeprom_len = nfp_net_get_eeprom_len,
.get_eeprom = nfp_net_get_eeprom,
.set_eeprom = nfp_net_set_eeprom,
.get_module_info = nfp_port_get_module_info,
.get_module_eeprom = nfp_port_get_module_eeprom,
.get_link_ksettings = nfp_net_get_link_ksettings,
.set_link_ksettings = nfp_net_set_link_ksettings,
.get_fecparam = nfp_port_get_fecparam,
.set_fecparam = nfp_port_set_fecparam,
.set_pauseparam = nfp_port_set_pauseparam,
.get_pauseparam = nfp_port_get_pauseparam,
.set_phys_id = nfp_net_set_phys_id,
};
void nfp_net_set_ethtool_ops(struct net_device *netdev)
{
netdev->ethtool_ops = &nfp_net_ethtool_ops;
}
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