421 lines
11 KiB
C
421 lines
11 KiB
C
/*
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* aQuantia Corporation Network Driver
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* Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*/
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/* File aq_ethtool.c: Definition of ethertool related functions. */
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#include "aq_ethtool.h"
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#include "aq_nic.h"
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#include "aq_vec.h"
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static void aq_ethtool_get_regs(struct net_device *ndev,
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struct ethtool_regs *regs, void *p)
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{
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struct aq_nic_s *aq_nic = netdev_priv(ndev);
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u32 regs_count = aq_nic_get_regs_count(aq_nic);
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memset(p, 0, regs_count * sizeof(u32));
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aq_nic_get_regs(aq_nic, regs, p);
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}
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static int aq_ethtool_get_regs_len(struct net_device *ndev)
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{
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struct aq_nic_s *aq_nic = netdev_priv(ndev);
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u32 regs_count = aq_nic_get_regs_count(aq_nic);
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return regs_count * sizeof(u32);
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}
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static u32 aq_ethtool_get_link(struct net_device *ndev)
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{
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return ethtool_op_get_link(ndev);
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}
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static int aq_ethtool_get_link_ksettings(struct net_device *ndev,
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struct ethtool_link_ksettings *cmd)
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{
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struct aq_nic_s *aq_nic = netdev_priv(ndev);
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aq_nic_get_link_ksettings(aq_nic, cmd);
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cmd->base.speed = netif_carrier_ok(ndev) ?
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aq_nic_get_link_speed(aq_nic) : 0U;
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return 0;
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}
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static int
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aq_ethtool_set_link_ksettings(struct net_device *ndev,
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const struct ethtool_link_ksettings *cmd)
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{
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struct aq_nic_s *aq_nic = netdev_priv(ndev);
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return aq_nic_set_link_ksettings(aq_nic, cmd);
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}
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static const char aq_ethtool_stat_names[][ETH_GSTRING_LEN] = {
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"InPackets",
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"InUCast",
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"InMCast",
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"InBCast",
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"InErrors",
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"OutPackets",
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"OutUCast",
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"OutMCast",
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"OutBCast",
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"InUCastOctets",
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"OutUCastOctets",
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"InMCastOctets",
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"OutMCastOctets",
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"InBCastOctets",
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"OutBCastOctets",
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"InOctets",
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"OutOctets",
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"InPacketsDma",
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"OutPacketsDma",
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"InOctetsDma",
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"OutOctetsDma",
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"InDroppedDma",
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};
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static const char aq_ethtool_queue_stat_names[][ETH_GSTRING_LEN] = {
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"Queue[%d] InPackets",
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"Queue[%d] OutPackets",
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"Queue[%d] Restarts",
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"Queue[%d] InJumboPackets",
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"Queue[%d] InLroPackets",
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"Queue[%d] InErrors",
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};
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static void aq_ethtool_stats(struct net_device *ndev,
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struct ethtool_stats *stats, u64 *data)
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{
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struct aq_nic_s *aq_nic = netdev_priv(ndev);
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struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
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memset(data, 0, (ARRAY_SIZE(aq_ethtool_stat_names) +
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ARRAY_SIZE(aq_ethtool_queue_stat_names) *
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cfg->vecs) * sizeof(u64));
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aq_nic_get_stats(aq_nic, data);
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}
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static void aq_ethtool_get_drvinfo(struct net_device *ndev,
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struct ethtool_drvinfo *drvinfo)
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{
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struct aq_nic_s *aq_nic = netdev_priv(ndev);
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struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
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struct pci_dev *pdev = to_pci_dev(ndev->dev.parent);
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u32 firmware_version = aq_nic_get_fw_version(aq_nic);
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u32 regs_count = aq_nic_get_regs_count(aq_nic);
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strlcat(drvinfo->driver, AQ_CFG_DRV_NAME, sizeof(drvinfo->driver));
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strlcat(drvinfo->version, AQ_CFG_DRV_VERSION, sizeof(drvinfo->version));
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snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
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"%u.%u.%u", firmware_version >> 24,
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(firmware_version >> 16) & 0xFFU, firmware_version & 0xFFFFU);
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strlcpy(drvinfo->bus_info, pdev ? pci_name(pdev) : "",
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sizeof(drvinfo->bus_info));
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drvinfo->n_stats = ARRAY_SIZE(aq_ethtool_stat_names) +
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cfg->vecs * ARRAY_SIZE(aq_ethtool_queue_stat_names);
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drvinfo->testinfo_len = 0;
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drvinfo->regdump_len = regs_count;
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drvinfo->eedump_len = 0;
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}
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static void aq_ethtool_get_strings(struct net_device *ndev,
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u32 stringset, u8 *data)
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{
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int i, si;
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struct aq_nic_s *aq_nic = netdev_priv(ndev);
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struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
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u8 *p = data;
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if (stringset == ETH_SS_STATS) {
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memcpy(p, *aq_ethtool_stat_names,
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sizeof(aq_ethtool_stat_names));
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p = p + sizeof(aq_ethtool_stat_names);
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for (i = 0; i < cfg->vecs; i++) {
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for (si = 0;
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si < ARRAY_SIZE(aq_ethtool_queue_stat_names);
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si++) {
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snprintf(p, ETH_GSTRING_LEN,
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aq_ethtool_queue_stat_names[si], i);
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p += ETH_GSTRING_LEN;
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}
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}
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}
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}
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static int aq_ethtool_get_sset_count(struct net_device *ndev, int stringset)
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{
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int ret = 0;
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struct aq_nic_s *aq_nic = netdev_priv(ndev);
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struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
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switch (stringset) {
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case ETH_SS_STATS:
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ret = ARRAY_SIZE(aq_ethtool_stat_names) +
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cfg->vecs * ARRAY_SIZE(aq_ethtool_queue_stat_names);
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break;
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default:
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ret = -EOPNOTSUPP;
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}
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return ret;
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}
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static u32 aq_ethtool_get_rss_indir_size(struct net_device *ndev)
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{
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return AQ_CFG_RSS_INDIRECTION_TABLE_MAX;
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}
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static u32 aq_ethtool_get_rss_key_size(struct net_device *ndev)
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{
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struct aq_nic_s *aq_nic = netdev_priv(ndev);
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struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
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return sizeof(cfg->aq_rss.hash_secret_key);
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}
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static int aq_ethtool_get_rss(struct net_device *ndev, u32 *indir, u8 *key,
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u8 *hfunc)
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{
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struct aq_nic_s *aq_nic = netdev_priv(ndev);
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struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
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unsigned int i = 0U;
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if (hfunc)
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*hfunc = ETH_RSS_HASH_TOP; /* Toeplitz */
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if (indir) {
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for (i = 0; i < AQ_CFG_RSS_INDIRECTION_TABLE_MAX; i++)
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indir[i] = cfg->aq_rss.indirection_table[i];
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}
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if (key)
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memcpy(key, cfg->aq_rss.hash_secret_key,
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sizeof(cfg->aq_rss.hash_secret_key));
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return 0;
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}
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static int aq_ethtool_get_rxnfc(struct net_device *ndev,
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struct ethtool_rxnfc *cmd,
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u32 *rule_locs)
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{
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struct aq_nic_s *aq_nic = netdev_priv(ndev);
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struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
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int err = 0;
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switch (cmd->cmd) {
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case ETHTOOL_GRXRINGS:
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cmd->data = cfg->vecs;
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break;
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default:
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err = -EOPNOTSUPP;
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break;
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}
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return err;
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}
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static int aq_ethtool_get_coalesce(struct net_device *ndev,
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struct ethtool_coalesce *coal)
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{
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struct aq_nic_s *aq_nic = netdev_priv(ndev);
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struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
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if (cfg->itr == AQ_CFG_INTERRUPT_MODERATION_ON ||
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cfg->itr == AQ_CFG_INTERRUPT_MODERATION_AUTO) {
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coal->rx_coalesce_usecs = cfg->rx_itr;
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coal->tx_coalesce_usecs = cfg->tx_itr;
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coal->rx_max_coalesced_frames = 0;
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coal->tx_max_coalesced_frames = 0;
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} else {
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coal->rx_coalesce_usecs = 0;
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coal->tx_coalesce_usecs = 0;
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coal->rx_max_coalesced_frames = 1;
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coal->tx_max_coalesced_frames = 1;
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}
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return 0;
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}
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static int aq_ethtool_set_coalesce(struct net_device *ndev,
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struct ethtool_coalesce *coal)
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{
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struct aq_nic_s *aq_nic = netdev_priv(ndev);
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struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
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/* This is not yet supported
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*/
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if (coal->use_adaptive_rx_coalesce || coal->use_adaptive_tx_coalesce)
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return -EOPNOTSUPP;
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/* Atlantic only supports timing based coalescing
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*/
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if (coal->rx_max_coalesced_frames > 1 ||
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coal->rx_coalesce_usecs_irq ||
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coal->rx_max_coalesced_frames_irq)
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return -EOPNOTSUPP;
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if (coal->tx_max_coalesced_frames > 1 ||
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coal->tx_coalesce_usecs_irq ||
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coal->tx_max_coalesced_frames_irq)
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return -EOPNOTSUPP;
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/* We do not support frame counting. Check this
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*/
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if (!(coal->rx_max_coalesced_frames == !coal->rx_coalesce_usecs))
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return -EOPNOTSUPP;
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if (!(coal->tx_max_coalesced_frames == !coal->tx_coalesce_usecs))
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return -EOPNOTSUPP;
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if (coal->rx_coalesce_usecs > AQ_CFG_INTERRUPT_MODERATION_USEC_MAX ||
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coal->tx_coalesce_usecs > AQ_CFG_INTERRUPT_MODERATION_USEC_MAX)
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return -EINVAL;
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cfg->itr = AQ_CFG_INTERRUPT_MODERATION_ON;
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cfg->rx_itr = coal->rx_coalesce_usecs;
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cfg->tx_itr = coal->tx_coalesce_usecs;
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return aq_nic_update_interrupt_moderation_settings(aq_nic);
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}
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static int aq_ethtool_nway_reset(struct net_device *ndev)
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{
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struct aq_nic_s *aq_nic = netdev_priv(ndev);
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if (unlikely(!aq_nic->aq_fw_ops->renegotiate))
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return -EOPNOTSUPP;
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if (netif_running(ndev))
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return aq_nic->aq_fw_ops->renegotiate(aq_nic->aq_hw);
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return 0;
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}
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static void aq_ethtool_get_pauseparam(struct net_device *ndev,
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struct ethtool_pauseparam *pause)
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{
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struct aq_nic_s *aq_nic = netdev_priv(ndev);
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pause->autoneg = 0;
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if (aq_nic->aq_hw->aq_nic_cfg->flow_control & AQ_NIC_FC_RX)
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pause->rx_pause = 1;
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if (aq_nic->aq_hw->aq_nic_cfg->flow_control & AQ_NIC_FC_TX)
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pause->tx_pause = 1;
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}
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static int aq_ethtool_set_pauseparam(struct net_device *ndev,
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struct ethtool_pauseparam *pause)
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{
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struct aq_nic_s *aq_nic = netdev_priv(ndev);
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int err = 0;
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if (!aq_nic->aq_fw_ops->set_flow_control)
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return -EOPNOTSUPP;
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if (pause->autoneg == AUTONEG_ENABLE)
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return -EOPNOTSUPP;
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if (pause->rx_pause)
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aq_nic->aq_hw->aq_nic_cfg->flow_control |= AQ_NIC_FC_RX;
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else
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aq_nic->aq_hw->aq_nic_cfg->flow_control &= ~AQ_NIC_FC_RX;
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if (pause->tx_pause)
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aq_nic->aq_hw->aq_nic_cfg->flow_control |= AQ_NIC_FC_TX;
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else
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aq_nic->aq_hw->aq_nic_cfg->flow_control &= ~AQ_NIC_FC_TX;
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err = aq_nic->aq_fw_ops->set_flow_control(aq_nic->aq_hw);
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return err;
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}
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static void aq_get_ringparam(struct net_device *ndev,
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struct ethtool_ringparam *ring)
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{
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struct aq_nic_s *aq_nic = netdev_priv(ndev);
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struct aq_nic_cfg_s *aq_nic_cfg = aq_nic_get_cfg(aq_nic);
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ring->rx_pending = aq_nic_cfg->rxds;
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ring->tx_pending = aq_nic_cfg->txds;
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ring->rx_max_pending = aq_nic_cfg->aq_hw_caps->rxds_max;
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ring->tx_max_pending = aq_nic_cfg->aq_hw_caps->txds_max;
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}
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static int aq_set_ringparam(struct net_device *ndev,
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struct ethtool_ringparam *ring)
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{
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int err = 0;
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bool ndev_running = false;
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struct aq_nic_s *aq_nic = netdev_priv(ndev);
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struct aq_nic_cfg_s *aq_nic_cfg = aq_nic_get_cfg(aq_nic);
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const struct aq_hw_caps_s *hw_caps = aq_nic_cfg->aq_hw_caps;
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if (ring->rx_mini_pending || ring->rx_jumbo_pending) {
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err = -EOPNOTSUPP;
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goto err_exit;
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}
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if (netif_running(ndev)) {
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ndev_running = true;
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dev_close(ndev);
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}
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aq_nic_free_vectors(aq_nic);
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aq_nic_cfg->rxds = max(ring->rx_pending, hw_caps->rxds_min);
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aq_nic_cfg->rxds = min(aq_nic_cfg->rxds, hw_caps->rxds_max);
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aq_nic_cfg->rxds = ALIGN(aq_nic_cfg->rxds, AQ_HW_RXD_MULTIPLE);
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aq_nic_cfg->txds = max(ring->tx_pending, hw_caps->txds_min);
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aq_nic_cfg->txds = min(aq_nic_cfg->txds, hw_caps->txds_max);
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aq_nic_cfg->txds = ALIGN(aq_nic_cfg->txds, AQ_HW_TXD_MULTIPLE);
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for (aq_nic->aq_vecs = 0; aq_nic->aq_vecs < aq_nic_cfg->vecs;
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aq_nic->aq_vecs++) {
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aq_nic->aq_vec[aq_nic->aq_vecs] =
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aq_vec_alloc(aq_nic, aq_nic->aq_vecs, aq_nic_cfg);
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if (unlikely(!aq_nic->aq_vec[aq_nic->aq_vecs])) {
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err = -ENOMEM;
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goto err_exit;
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}
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}
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if (ndev_running)
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err = dev_open(ndev);
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err_exit:
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return err;
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}
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const struct ethtool_ops aq_ethtool_ops = {
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.get_link = aq_ethtool_get_link,
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.get_regs_len = aq_ethtool_get_regs_len,
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.get_regs = aq_ethtool_get_regs,
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.get_drvinfo = aq_ethtool_get_drvinfo,
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.get_strings = aq_ethtool_get_strings,
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.get_rxfh_indir_size = aq_ethtool_get_rss_indir_size,
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.nway_reset = aq_ethtool_nway_reset,
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.get_ringparam = aq_get_ringparam,
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.set_ringparam = aq_set_ringparam,
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.get_pauseparam = aq_ethtool_get_pauseparam,
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.set_pauseparam = aq_ethtool_set_pauseparam,
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.get_rxfh_key_size = aq_ethtool_get_rss_key_size,
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.get_rxfh = aq_ethtool_get_rss,
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.get_rxnfc = aq_ethtool_get_rxnfc,
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.get_sset_count = aq_ethtool_get_sset_count,
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.get_ethtool_stats = aq_ethtool_stats,
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.get_link_ksettings = aq_ethtool_get_link_ksettings,
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.set_link_ksettings = aq_ethtool_set_link_ksettings,
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.get_coalesce = aq_ethtool_get_coalesce,
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.set_coalesce = aq_ethtool_set_coalesce,
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};
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