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![Jakub Kicinski](/assets/img/avatar_default.png)
The while loop fetching 64 bit ethtool statistics may have
to retry multiple times, it shouldn't modify the outside state.
Fixes: 4c3523623d
("net: add driver for Netronome NFP4000/NFP6000 NIC VFs")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1160 lines
33 KiB
C
1160 lines
33 KiB
C
/*
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* Copyright (C) 2015-2017 Netronome Systems, Inc.
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*
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* This software is dual licensed under the GNU General License Version 2,
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* June 1991 as shown in the file COPYING in the top-level directory of this
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* source tree or the BSD 2-Clause License provided below. You have the
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* option to license this software under the complete terms of either license.
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*
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* The BSD 2-Clause License:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* 1. Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/*
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* nfp_net_ethtool.c
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* Netronome network device driver: ethtool support
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* Authors: Jakub Kicinski <jakub.kicinski@netronome.com>
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* Jason McMullan <jason.mcmullan@netronome.com>
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* Rolf Neugebauer <rolf.neugebauer@netronome.com>
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* Brad Petrus <brad.petrus@netronome.com>
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*/
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#include <linux/bitfield.h>
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#include <linux/kernel.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/interrupt.h>
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#include <linux/pci.h>
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#include <linux/ethtool.h>
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#include "nfpcore/nfp.h"
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#include "nfpcore/nfp_nsp.h"
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#include "nfp_app.h"
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#include "nfp_net_ctrl.h"
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#include "nfp_net.h"
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#include "nfp_port.h"
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enum nfp_dump_diag {
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NFP_DUMP_NSP_DIAG = 0,
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};
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struct nfp_et_stat {
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char name[ETH_GSTRING_LEN];
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int off;
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};
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static const struct nfp_et_stat nfp_net_et_stats[] = {
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/* Stats from the device */
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{ "dev_rx_discards", NFP_NET_CFG_STATS_RX_DISCARDS },
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{ "dev_rx_errors", NFP_NET_CFG_STATS_RX_ERRORS },
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{ "dev_rx_bytes", NFP_NET_CFG_STATS_RX_OCTETS },
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{ "dev_rx_uc_bytes", NFP_NET_CFG_STATS_RX_UC_OCTETS },
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{ "dev_rx_mc_bytes", NFP_NET_CFG_STATS_RX_MC_OCTETS },
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{ "dev_rx_bc_bytes", NFP_NET_CFG_STATS_RX_BC_OCTETS },
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{ "dev_rx_pkts", NFP_NET_CFG_STATS_RX_FRAMES },
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{ "dev_rx_mc_pkts", NFP_NET_CFG_STATS_RX_MC_FRAMES },
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{ "dev_rx_bc_pkts", NFP_NET_CFG_STATS_RX_BC_FRAMES },
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{ "dev_tx_discards", NFP_NET_CFG_STATS_TX_DISCARDS },
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{ "dev_tx_errors", NFP_NET_CFG_STATS_TX_ERRORS },
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{ "dev_tx_bytes", NFP_NET_CFG_STATS_TX_OCTETS },
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{ "dev_tx_uc_bytes", NFP_NET_CFG_STATS_TX_UC_OCTETS },
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{ "dev_tx_mc_bytes", NFP_NET_CFG_STATS_TX_MC_OCTETS },
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{ "dev_tx_bc_bytes", NFP_NET_CFG_STATS_TX_BC_OCTETS },
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{ "dev_tx_pkts", NFP_NET_CFG_STATS_TX_FRAMES },
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{ "dev_tx_mc_pkts", NFP_NET_CFG_STATS_TX_MC_FRAMES },
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{ "dev_tx_bc_pkts", NFP_NET_CFG_STATS_TX_BC_FRAMES },
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{ "bpf_pass_pkts", NFP_NET_CFG_STATS_APP0_FRAMES },
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{ "bpf_pass_bytes", NFP_NET_CFG_STATS_APP0_BYTES },
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/* see comments in outro functions in nfp_bpf_jit.c to find out
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* how different BPF modes use app-specific counters
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*/
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{ "bpf_app1_pkts", NFP_NET_CFG_STATS_APP1_FRAMES },
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{ "bpf_app1_bytes", NFP_NET_CFG_STATS_APP1_BYTES },
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{ "bpf_app2_pkts", NFP_NET_CFG_STATS_APP2_FRAMES },
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{ "bpf_app2_bytes", NFP_NET_CFG_STATS_APP2_BYTES },
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{ "bpf_app3_pkts", NFP_NET_CFG_STATS_APP3_FRAMES },
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{ "bpf_app3_bytes", NFP_NET_CFG_STATS_APP3_BYTES },
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};
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static const struct nfp_et_stat nfp_mac_et_stats[] = {
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{ "rx_octets", NFP_MAC_STATS_RX_IN_OCTETS, },
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{ "rx_frame_too_long_errors",
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NFP_MAC_STATS_RX_FRAME_TOO_LONG_ERRORS, },
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{ "rx_range_length_errors", NFP_MAC_STATS_RX_RANGE_LENGTH_ERRORS, },
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{ "rx_vlan_reveive_ok", NFP_MAC_STATS_RX_VLAN_REVEIVE_OK, },
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{ "rx_errors", NFP_MAC_STATS_RX_IN_ERRORS, },
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{ "rx_broadcast_pkts", NFP_MAC_STATS_RX_IN_BROADCAST_PKTS, },
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{ "rx_drop_events", NFP_MAC_STATS_RX_DROP_EVENTS, },
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{ "rx_alignment_errors", NFP_MAC_STATS_RX_ALIGNMENT_ERRORS, },
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{ "rx_pause_mac_ctrl_frames",
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NFP_MAC_STATS_RX_PAUSE_MAC_CTRL_FRAMES, },
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{ "rx_frames_received_ok", NFP_MAC_STATS_RX_FRAMES_RECEIVED_OK, },
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{ "rx_frame_check_sequence_errors",
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NFP_MAC_STATS_RX_FRAME_CHECK_SEQUENCE_ERRORS, },
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{ "rx_unicast_pkts", NFP_MAC_STATS_RX_UNICAST_PKTS, },
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{ "rx_multicast_pkts", NFP_MAC_STATS_RX_MULTICAST_PKTS, },
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{ "rx_pkts", NFP_MAC_STATS_RX_PKTS, },
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{ "rx_undersize_pkts", NFP_MAC_STATS_RX_UNDERSIZE_PKTS, },
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{ "rx_pkts_64_octets", NFP_MAC_STATS_RX_PKTS_64_OCTETS, },
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{ "rx_pkts_65_to_127_octets",
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NFP_MAC_STATS_RX_PKTS_65_TO_127_OCTETS, },
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{ "rx_pkts_128_to_255_octets",
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NFP_MAC_STATS_RX_PKTS_128_TO_255_OCTETS, },
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{ "rx_pkts_256_to_511_octets",
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NFP_MAC_STATS_RX_PKTS_256_TO_511_OCTETS, },
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{ "rx_pkts_512_to_1023_octets",
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NFP_MAC_STATS_RX_PKTS_512_TO_1023_OCTETS, },
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{ "rx_pkts_1024_to_1518_octets",
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NFP_MAC_STATS_RX_PKTS_1024_TO_1518_OCTETS, },
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{ "rx_pkts_1519_to_max_octets",
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NFP_MAC_STATS_RX_PKTS_1519_TO_MAX_OCTETS, },
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{ "rx_jabbers", NFP_MAC_STATS_RX_JABBERS, },
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{ "rx_fragments", NFP_MAC_STATS_RX_FRAGMENTS, },
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{ "rx_oversize_pkts", NFP_MAC_STATS_RX_OVERSIZE_PKTS, },
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{ "rx_pause_frames_class0", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS0, },
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{ "rx_pause_frames_class1", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS1, },
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{ "rx_pause_frames_class2", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS2, },
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{ "rx_pause_frames_class3", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS3, },
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{ "rx_pause_frames_class4", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS4, },
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{ "rx_pause_frames_class5", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS5, },
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{ "rx_pause_frames_class6", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS6, },
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{ "rx_pause_frames_class7", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS7, },
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{ "rx_mac_ctrl_frames_received",
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NFP_MAC_STATS_RX_MAC_CTRL_FRAMES_RECEIVED, },
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{ "rx_mac_head_drop", NFP_MAC_STATS_RX_MAC_HEAD_DROP, },
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{ "tx_queue_drop", NFP_MAC_STATS_TX_QUEUE_DROP, },
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{ "tx_octets", NFP_MAC_STATS_TX_OUT_OCTETS, },
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{ "tx_vlan_transmitted_ok", NFP_MAC_STATS_TX_VLAN_TRANSMITTED_OK, },
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{ "tx_errors", NFP_MAC_STATS_TX_OUT_ERRORS, },
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{ "tx_broadcast_pkts", NFP_MAC_STATS_TX_BROADCAST_PKTS, },
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{ "tx_pause_mac_ctrl_frames",
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NFP_MAC_STATS_TX_PAUSE_MAC_CTRL_FRAMES, },
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{ "tx_frames_transmitted_ok",
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NFP_MAC_STATS_TX_FRAMES_TRANSMITTED_OK, },
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{ "tx_unicast_pkts", NFP_MAC_STATS_TX_UNICAST_PKTS, },
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{ "tx_multicast_pkts", NFP_MAC_STATS_TX_MULTICAST_PKTS, },
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{ "tx_pkts_64_octets", NFP_MAC_STATS_TX_PKTS_64_OCTETS, },
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{ "tx_pkts_65_to_127_octets",
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NFP_MAC_STATS_TX_PKTS_65_TO_127_OCTETS, },
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{ "tx_pkts_128_to_255_octets",
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NFP_MAC_STATS_TX_PKTS_128_TO_255_OCTETS, },
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{ "tx_pkts_256_to_511_octets",
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NFP_MAC_STATS_TX_PKTS_256_TO_511_OCTETS, },
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{ "tx_pkts_512_to_1023_octets",
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NFP_MAC_STATS_TX_PKTS_512_TO_1023_OCTETS, },
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{ "tx_pkts_1024_to_1518_octets",
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NFP_MAC_STATS_TX_PKTS_1024_TO_1518_OCTETS, },
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{ "tx_pkts_1519_to_max_octets",
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NFP_MAC_STATS_TX_PKTS_1519_TO_MAX_OCTETS, },
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{ "tx_pause_frames_class0", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS0, },
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{ "tx_pause_frames_class1", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS1, },
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{ "tx_pause_frames_class2", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS2, },
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{ "tx_pause_frames_class3", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS3, },
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{ "tx_pause_frames_class4", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS4, },
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{ "tx_pause_frames_class5", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS5, },
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{ "tx_pause_frames_class6", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS6, },
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{ "tx_pause_frames_class7", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS7, },
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};
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#define NN_ET_GLOBAL_STATS_LEN ARRAY_SIZE(nfp_net_et_stats)
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#define NN_ET_SWITCH_STATS_LEN 9
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#define NN_ET_RVEC_GATHER_STATS 7
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static void nfp_net_get_nspinfo(struct nfp_app *app, char *version)
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{
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struct nfp_nsp *nsp;
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if (!app)
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return;
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nsp = nfp_nsp_open(app->cpp);
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if (IS_ERR(nsp))
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return;
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snprintf(version, ETHTOOL_FWVERS_LEN, "%hu.%hu",
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nfp_nsp_get_abi_ver_major(nsp),
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nfp_nsp_get_abi_ver_minor(nsp));
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nfp_nsp_close(nsp);
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}
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static void
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nfp_get_drvinfo(struct nfp_app *app, struct pci_dev *pdev,
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const char *vnic_version, struct ethtool_drvinfo *drvinfo)
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{
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char nsp_version[ETHTOOL_FWVERS_LEN] = {};
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strlcpy(drvinfo->driver, pdev->driver->name, sizeof(drvinfo->driver));
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strlcpy(drvinfo->version, nfp_driver_version, sizeof(drvinfo->version));
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nfp_net_get_nspinfo(app, nsp_version);
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snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
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"%s %s %s %s", vnic_version, nsp_version,
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nfp_app_mip_name(app), nfp_app_name(app));
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}
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static void
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nfp_net_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
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{
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char vnic_version[ETHTOOL_FWVERS_LEN] = {};
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struct nfp_net *nn = netdev_priv(netdev);
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snprintf(vnic_version, sizeof(vnic_version), "%d.%d.%d.%d",
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nn->fw_ver.resv, nn->fw_ver.class,
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nn->fw_ver.major, nn->fw_ver.minor);
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strlcpy(drvinfo->bus_info, pci_name(nn->pdev),
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sizeof(drvinfo->bus_info));
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nfp_get_drvinfo(nn->app, nn->pdev, vnic_version, drvinfo);
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}
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static void
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nfp_app_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
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{
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struct nfp_app *app;
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app = nfp_app_from_netdev(netdev);
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if (!app)
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return;
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nfp_get_drvinfo(app, app->pdev, "*", drvinfo);
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}
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/**
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* nfp_net_get_link_ksettings - Get Link Speed settings
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* @netdev: network interface device structure
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* @cmd: ethtool command
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*
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* Reports speed settings based on info in the BAR provided by the fw.
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*/
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static int
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nfp_net_get_link_ksettings(struct net_device *netdev,
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struct ethtool_link_ksettings *cmd)
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{
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static const u32 ls_to_ethtool[] = {
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[NFP_NET_CFG_STS_LINK_RATE_UNSUPPORTED] = 0,
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[NFP_NET_CFG_STS_LINK_RATE_UNKNOWN] = SPEED_UNKNOWN,
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[NFP_NET_CFG_STS_LINK_RATE_1G] = SPEED_1000,
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[NFP_NET_CFG_STS_LINK_RATE_10G] = SPEED_10000,
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[NFP_NET_CFG_STS_LINK_RATE_25G] = SPEED_25000,
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[NFP_NET_CFG_STS_LINK_RATE_40G] = SPEED_40000,
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[NFP_NET_CFG_STS_LINK_RATE_50G] = SPEED_50000,
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[NFP_NET_CFG_STS_LINK_RATE_100G] = SPEED_100000,
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};
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struct nfp_eth_table_port *eth_port;
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struct nfp_port *port;
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struct nfp_net *nn;
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u32 sts, ls;
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/* Init to unknowns */
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ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
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cmd->base.port = PORT_OTHER;
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cmd->base.speed = SPEED_UNKNOWN;
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cmd->base.duplex = DUPLEX_UNKNOWN;
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port = nfp_port_from_netdev(netdev);
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eth_port = nfp_port_get_eth_port(port);
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if (eth_port)
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cmd->base.autoneg = eth_port->aneg != NFP_ANEG_DISABLED ?
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AUTONEG_ENABLE : AUTONEG_DISABLE;
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if (!netif_carrier_ok(netdev))
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return 0;
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/* Use link speed from ETH table if available, otherwise try the BAR */
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if (eth_port) {
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cmd->base.port = eth_port->port_type;
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cmd->base.speed = eth_port->speed;
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cmd->base.duplex = DUPLEX_FULL;
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return 0;
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}
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if (!nfp_netdev_is_nfp_net(netdev))
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return -EOPNOTSUPP;
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nn = netdev_priv(netdev);
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sts = nn_readl(nn, NFP_NET_CFG_STS);
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ls = FIELD_GET(NFP_NET_CFG_STS_LINK_RATE, sts);
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if (ls == NFP_NET_CFG_STS_LINK_RATE_UNSUPPORTED)
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return -EOPNOTSUPP;
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if (ls == NFP_NET_CFG_STS_LINK_RATE_UNKNOWN ||
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ls >= ARRAY_SIZE(ls_to_ethtool))
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return 0;
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cmd->base.speed = ls_to_ethtool[sts];
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cmd->base.duplex = DUPLEX_FULL;
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return 0;
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}
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static int
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nfp_net_set_link_ksettings(struct net_device *netdev,
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const struct ethtool_link_ksettings *cmd)
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{
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struct nfp_eth_table_port *eth_port;
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struct nfp_port *port;
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struct nfp_nsp *nsp;
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int err;
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port = nfp_port_from_netdev(netdev);
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eth_port = __nfp_port_get_eth_port(port);
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if (!eth_port)
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return -EOPNOTSUPP;
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if (netif_running(netdev)) {
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netdev_warn(netdev, "Changing settings not allowed on an active interface. It may cause the port to be disabled until reboot.\n");
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return -EBUSY;
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}
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nsp = nfp_eth_config_start(port->app->cpp, eth_port->index);
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if (IS_ERR(nsp))
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return PTR_ERR(nsp);
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err = __nfp_eth_set_aneg(nsp, cmd->base.autoneg == AUTONEG_ENABLE ?
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NFP_ANEG_AUTO : NFP_ANEG_DISABLED);
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if (err)
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goto err_bad_set;
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if (cmd->base.speed != SPEED_UNKNOWN) {
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u32 speed = cmd->base.speed / eth_port->lanes;
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err = __nfp_eth_set_speed(nsp, speed);
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if (err)
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goto err_bad_set;
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}
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err = nfp_eth_config_commit_end(nsp);
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if (err > 0)
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return 0; /* no change */
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nfp_net_refresh_port_table(port);
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return err;
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err_bad_set:
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nfp_eth_config_cleanup_end(nsp);
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return err;
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}
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static void nfp_net_get_ringparam(struct net_device *netdev,
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struct ethtool_ringparam *ring)
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{
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struct nfp_net *nn = netdev_priv(netdev);
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ring->rx_max_pending = NFP_NET_MAX_RX_DESCS;
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ring->tx_max_pending = NFP_NET_MAX_TX_DESCS;
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ring->rx_pending = nn->dp.rxd_cnt;
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ring->tx_pending = nn->dp.txd_cnt;
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}
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|
|
|
static int nfp_net_set_ring_size(struct nfp_net *nn, u32 rxd_cnt, u32 txd_cnt)
|
|
{
|
|
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, NULL);
|
|
}
|
|
|
|
static int nfp_net_set_ringparam(struct net_device *netdev,
|
|
struct ethtool_ringparam *ring)
|
|
{
|
|
struct nfp_net *nn = netdev_priv(netdev);
|
|
u32 rxd_cnt, txd_cnt;
|
|
|
|
/* We don't have separate queues/rings for small/large frames. */
|
|
if (ring->rx_mini_pending || ring->rx_jumbo_pending)
|
|
return -EINVAL;
|
|
|
|
/* 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 < NFP_NET_MIN_RX_DESCS || rxd_cnt > NFP_NET_MAX_RX_DESCS ||
|
|
txd_cnt < NFP_NET_MIN_TX_DESCS || txd_cnt > NFP_NET_MAX_TX_DESCS)
|
|
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);
|
|
}
|
|
|
|
static __printf(2, 3) u8 *nfp_pr_et(u8 *data, const char *fmt, ...)
|
|
{
|
|
va_list args;
|
|
|
|
va_start(args, fmt);
|
|
vsnprintf(data, ETH_GSTRING_LEN, fmt, args);
|
|
va_end(args);
|
|
|
|
return data + ETH_GSTRING_LEN;
|
|
}
|
|
|
|
static unsigned int nfp_vnic_get_sw_stats_count(struct net_device *netdev)
|
|
{
|
|
struct nfp_net *nn = netdev_priv(netdev);
|
|
|
|
return NN_ET_RVEC_GATHER_STATS + nn->dp.num_r_vecs * 3;
|
|
}
|
|
|
|
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->dp.num_r_vecs; i++) {
|
|
data = nfp_pr_et(data, "rvec_%u_rx_pkts", i);
|
|
data = nfp_pr_et(data, "rvec_%u_tx_pkts", i);
|
|
data = nfp_pr_et(data, "rvec_%u_tx_busy", i);
|
|
}
|
|
|
|
data = nfp_pr_et(data, "hw_rx_csum_ok");
|
|
data = nfp_pr_et(data, "hw_rx_csum_inner_ok");
|
|
data = nfp_pr_et(data, "hw_rx_csum_err");
|
|
data = nfp_pr_et(data, "hw_tx_csum");
|
|
data = nfp_pr_et(data, "hw_tx_inner_csum");
|
|
data = nfp_pr_et(data, "tx_gather");
|
|
data = nfp_pr_et(data, "tx_lso");
|
|
|
|
return data;
|
|
}
|
|
|
|
static u64 *nfp_vnic_get_sw_stats(struct net_device *netdev, u64 *data)
|
|
{
|
|
u64 gathered_stats[NN_ET_RVEC_GATHER_STATS] = {};
|
|
struct nfp_net *nn = netdev_priv(netdev);
|
|
u64 tmp[NN_ET_RVEC_GATHER_STATS];
|
|
unsigned int i, j;
|
|
|
|
for (i = 0; i < nn->dp.num_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_error;
|
|
} 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[3] = nn->r_vecs[i].hw_csum_tx;
|
|
tmp[4] = nn->r_vecs[i].hw_csum_tx_inner;
|
|
tmp[5] = nn->r_vecs[i].tx_gather;
|
|
tmp[6] = nn->r_vecs[i].tx_lso;
|
|
} while (u64_stats_fetch_retry(&nn->r_vecs[i].tx_sync, start));
|
|
|
|
data += 3;
|
|
|
|
for (j = 0; j < NN_ET_RVEC_GATHER_STATS; j++)
|
|
gathered_stats[j] += tmp[j];
|
|
}
|
|
|
|
for (j = 0; j < NN_ET_RVEC_GATHER_STATS; j++)
|
|
*data++ = gathered_stats[j];
|
|
|
|
return data;
|
|
}
|
|
|
|
static unsigned int
|
|
nfp_vnic_get_hw_stats_count(unsigned int rx_rings, unsigned int tx_rings)
|
|
{
|
|
return NN_ET_GLOBAL_STATS_LEN + (rx_rings + tx_rings) * 2;
|
|
}
|
|
|
|
static u8 *
|
|
nfp_vnic_get_hw_stats_strings(u8 *data, unsigned int rx_rings,
|
|
unsigned int tx_rings, 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++)
|
|
data = nfp_pr_et(data, nfp_net_et_stats[i + swap_off].name);
|
|
|
|
for (i = NN_ET_SWITCH_STATS_LEN; i < NN_ET_SWITCH_STATS_LEN * 2; i++)
|
|
data = nfp_pr_et(data, nfp_net_et_stats[i - swap_off].name);
|
|
|
|
for (i = NN_ET_SWITCH_STATS_LEN * 2; i < NN_ET_GLOBAL_STATS_LEN; i++)
|
|
data = nfp_pr_et(data, nfp_net_et_stats[i].name);
|
|
|
|
for (i = 0; i < tx_rings; i++) {
|
|
data = nfp_pr_et(data, "txq_%u_pkts", i);
|
|
data = nfp_pr_et(data, "txq_%u_bytes", i);
|
|
}
|
|
|
|
for (i = 0; i < rx_rings; i++) {
|
|
data = nfp_pr_et(data, "rxq_%u_pkts", i);
|
|
data = nfp_pr_et(data, "rxq_%u_bytes", i);
|
|
}
|
|
|
|
return data;
|
|
}
|
|
|
|
static u64 *
|
|
nfp_vnic_get_hw_stats(u64 *data, u8 __iomem *mem,
|
|
unsigned int rx_rings, unsigned int tx_rings)
|
|
{
|
|
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 < tx_rings; i++) {
|
|
*data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i));
|
|
*data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i) + 8);
|
|
}
|
|
|
|
for (i = 0; i < rx_rings; i++) {
|
|
*data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i));
|
|
*data++ = readq(mem + NFP_NET_CFG_RXR_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++)
|
|
data = nfp_pr_et(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);
|
|
data = nfp_vnic_get_hw_stats_strings(data, nn->dp.num_rx_rings,
|
|
nn->dp.num_tx_rings,
|
|
false);
|
|
data = nfp_mac_get_stats_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);
|
|
data = nfp_vnic_get_hw_stats(data, nn->dp.ctrl_bar,
|
|
nn->dp.num_rx_rings, nn->dp.num_tx_rings);
|
|
data = nfp_mac_get_stats(netdev, data);
|
|
}
|
|
|
|
static int nfp_net_get_sset_count(struct net_device *netdev, int sset)
|
|
{
|
|
struct nfp_net *nn = netdev_priv(netdev);
|
|
|
|
switch (sset) {
|
|
case ETH_SS_STATS:
|
|
return nfp_vnic_get_sw_stats_count(netdev) +
|
|
nfp_vnic_get_hw_stats_count(nn->dp.num_rx_rings,
|
|
nn->dp.num_tx_rings) +
|
|
nfp_mac_get_stats_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, 0, true);
|
|
else
|
|
data = nfp_mac_get_stats_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, 0);
|
|
else
|
|
data = nfp_mac_get_stats(netdev, 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, 0);
|
|
else
|
|
count = nfp_mac_get_stats_count(netdev);
|
|
return count;
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
}
|
|
|
|
/* 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;
|
|
}
|
|
|
|
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_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_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);
|
|
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, u32 *indir, u8 *key,
|
|
u8 *hfunc)
|
|
{
|
|
struct nfp_net *nn = netdev_priv(netdev);
|
|
int i;
|
|
|
|
if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (indir)
|
|
for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++)
|
|
indir[i] = nn->rss_itbl[i];
|
|
if (key)
|
|
memcpy(key, nn->rss_key, nfp_net_rss_key_sz(nn));
|
|
if (hfunc) {
|
|
*hfunc = nn->rss_hfunc;
|
|
if (*hfunc >= 1 << ETH_RSS_HASH_FUNCS_COUNT)
|
|
*hfunc = ETH_RSS_HASH_UNKNOWN;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nfp_net_set_rxfh(struct net_device *netdev,
|
|
const u32 *indir, const u8 *key,
|
|
const u8 hfunc)
|
|
{
|
|
struct nfp_net *nn = netdev_priv(netdev);
|
|
int i;
|
|
|
|
if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY) ||
|
|
!(hfunc == ETH_RSS_HASH_NO_CHANGE || hfunc == nn->rss_hfunc))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!key && !indir)
|
|
return 0;
|
|
|
|
if (key) {
|
|
memcpy(nn->rss_key, key, nfp_net_rss_key_sz(nn));
|
|
nfp_net_rss_write_key(nn);
|
|
}
|
|
if (indir) {
|
|
for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++)
|
|
nn->rss_itbl[i] = 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 nfp_net *nn = netdev_priv(netdev);
|
|
|
|
if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD))
|
|
return -EINVAL;
|
|
|
|
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;
|
|
}
|
|
|
|
static int nfp_app_set_dump(struct net_device *netdev, struct ethtool_dump *val)
|
|
{
|
|
struct nfp_app *app = nfp_app_from_netdev(netdev);
|
|
|
|
if (!app)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (val->flag != NFP_DUMP_NSP_DIAG)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
nfp_app_get_dump_flag(struct net_device *netdev, struct ethtool_dump *dump)
|
|
{
|
|
return nfp_dump_nsp_diag(nfp_app_from_netdev(netdev), dump, NULL);
|
|
}
|
|
|
|
static int
|
|
nfp_app_get_dump_data(struct net_device *netdev, struct ethtool_dump *dump,
|
|
void *buffer)
|
|
{
|
|
return nfp_dump_nsp_diag(nfp_app_from_netdev(netdev), dump, buffer);
|
|
}
|
|
|
|
static int nfp_net_set_coalesce(struct net_device *netdev,
|
|
struct ethtool_coalesce *ec)
|
|
{
|
|
struct nfp_net *nn = netdev_priv(netdev);
|
|
unsigned int factor;
|
|
|
|
if (ec->rx_coalesce_usecs_irq ||
|
|
ec->rx_max_coalesced_frames_irq ||
|
|
ec->tx_coalesce_usecs_irq ||
|
|
ec->tx_max_coalesced_frames_irq ||
|
|
ec->stats_block_coalesce_usecs ||
|
|
ec->use_adaptive_rx_coalesce ||
|
|
ec->use_adaptive_tx_coalesce ||
|
|
ec->pkt_rate_low ||
|
|
ec->rx_coalesce_usecs_low ||
|
|
ec->rx_max_coalesced_frames_low ||
|
|
ec->tx_coalesce_usecs_low ||
|
|
ec->tx_max_coalesced_frames_low ||
|
|
ec->pkt_rate_high ||
|
|
ec->rx_coalesce_usecs_high ||
|
|
ec->rx_max_coalesced_frames_high ||
|
|
ec->tx_coalesce_usecs_high ||
|
|
ec->tx_max_coalesced_frames_high ||
|
|
ec->rate_sample_interval)
|
|
return -EOPNOTSUPP;
|
|
|
|
/* Compute factor used to convert coalesce '_usecs' parameters to
|
|
* ME timestamp ticks. There are 16 ME clock cycles for each timestamp
|
|
* count.
|
|
*/
|
|
factor = nn->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 -EINVAL;
|
|
|
|
/* ensure valid configuration */
|
|
if (!ec->rx_coalesce_usecs && !ec->rx_max_coalesced_frames)
|
|
return -EINVAL;
|
|
|
|
if (!ec->tx_coalesce_usecs && !ec->tx_max_coalesced_frames)
|
|
return -EINVAL;
|
|
|
|
if (ec->rx_coalesce_usecs * factor >= ((1 << 16) - 1))
|
|
return -EINVAL;
|
|
|
|
if (ec->tx_coalesce_usecs * factor >= ((1 << 16) - 1))
|
|
return -EINVAL;
|
|
|
|
if (ec->rx_max_coalesced_frames >= ((1 << 16) - 1))
|
|
return -EINVAL;
|
|
|
|
if (ec->tx_max_coalesced_frames >= ((1 << 16) - 1))
|
|
return -EINVAL;
|
|
|
|
/* configuration is valid */
|
|
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->combined_count ||
|
|
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 const struct ethtool_ops nfp_net_ethtool_ops = {
|
|
.get_drvinfo = nfp_net_get_drvinfo,
|
|
.get_link = ethtool_op_get_link,
|
|
.get_ringparam = nfp_net_get_ringparam,
|
|
.set_ringparam = nfp_net_set_ringparam,
|
|
.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_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,
|
|
};
|
|
|
|
const struct ethtool_ops nfp_port_ethtool_ops = {
|
|
.get_drvinfo = nfp_app_get_drvinfo,
|
|
.get_link = ethtool_op_get_link,
|
|
.get_strings = nfp_port_get_strings,
|
|
.get_ethtool_stats = nfp_port_get_stats,
|
|
.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,
|
|
};
|
|
|
|
void nfp_net_set_ethtool_ops(struct net_device *netdev)
|
|
{
|
|
netdev->ethtool_ops = &nfp_net_ethtool_ops;
|
|
}
|