390 lines
11 KiB
C
390 lines
11 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright IBM Corp. 2018
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*/
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#define KMSG_COMPONENT "qeth"
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#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
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#include <linux/ethtool.h>
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#include "qeth_core.h"
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#define QETH_TXQ_STAT(_name, _stat) { \
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.name = _name, \
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.offset = offsetof(struct qeth_out_q_stats, _stat) \
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}
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#define QETH_CARD_STAT(_name, _stat) { \
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.name = _name, \
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.offset = offsetof(struct qeth_card_stats, _stat) \
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}
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struct qeth_stats {
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char name[ETH_GSTRING_LEN];
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unsigned int offset;
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};
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static const struct qeth_stats txq_stats[] = {
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QETH_TXQ_STAT("IO buffers", bufs),
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QETH_TXQ_STAT("IO buffer elements", buf_elements),
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QETH_TXQ_STAT("packed IO buffers", bufs_pack),
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QETH_TXQ_STAT("skbs", tx_packets),
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QETH_TXQ_STAT("packed skbs", skbs_pack),
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QETH_TXQ_STAT("SG skbs", skbs_sg),
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QETH_TXQ_STAT("HW csum skbs", skbs_csum),
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QETH_TXQ_STAT("TSO skbs", skbs_tso),
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QETH_TXQ_STAT("linearized skbs", skbs_linearized),
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QETH_TXQ_STAT("linearized+error skbs", skbs_linearized_fail),
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QETH_TXQ_STAT("TSO bytes", tso_bytes),
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QETH_TXQ_STAT("Packing mode switches", packing_mode_switch),
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QETH_TXQ_STAT("Queue stopped", stopped),
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QETH_TXQ_STAT("Completion yield", completion_yield),
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QETH_TXQ_STAT("Completion timer", completion_timer),
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};
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static const struct qeth_stats card_stats[] = {
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QETH_CARD_STAT("rx0 IO buffers", rx_bufs),
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QETH_CARD_STAT("rx0 HW csum skbs", rx_skb_csum),
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QETH_CARD_STAT("rx0 SG skbs", rx_sg_skbs),
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QETH_CARD_STAT("rx0 SG page frags", rx_sg_frags),
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QETH_CARD_STAT("rx0 SG page allocs", rx_sg_alloc_page),
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};
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#define TXQ_STATS_LEN ARRAY_SIZE(txq_stats)
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#define CARD_STATS_LEN ARRAY_SIZE(card_stats)
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static void qeth_add_stat_data(u64 **dst, void *src,
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const struct qeth_stats stats[],
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unsigned int size)
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{
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unsigned int i;
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char *stat;
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for (i = 0; i < size; i++) {
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stat = (char *)src + stats[i].offset;
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**dst = *(u64 *)stat;
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(*dst)++;
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}
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}
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static void qeth_add_stat_strings(u8 **data, const char *prefix,
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const struct qeth_stats stats[],
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unsigned int size)
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{
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unsigned int i;
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for (i = 0; i < size; i++) {
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snprintf(*data, ETH_GSTRING_LEN, "%s%s", prefix, stats[i].name);
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*data += ETH_GSTRING_LEN;
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}
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}
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static int qeth_get_sset_count(struct net_device *dev, int stringset)
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{
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struct qeth_card *card = dev->ml_priv;
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switch (stringset) {
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case ETH_SS_STATS:
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return CARD_STATS_LEN +
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card->qdio.no_out_queues * TXQ_STATS_LEN;
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default:
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return -EINVAL;
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}
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}
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static void qeth_get_ethtool_stats(struct net_device *dev,
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struct ethtool_stats *stats, u64 *data)
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{
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struct qeth_card *card = dev->ml_priv;
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unsigned int i;
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qeth_add_stat_data(&data, &card->stats, card_stats, CARD_STATS_LEN);
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for (i = 0; i < card->qdio.no_out_queues; i++)
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qeth_add_stat_data(&data, &card->qdio.out_qs[i]->stats,
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txq_stats, TXQ_STATS_LEN);
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}
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static void qeth_get_ringparam(struct net_device *dev,
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struct ethtool_ringparam *param)
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{
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struct qeth_card *card = dev->ml_priv;
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param->rx_max_pending = QDIO_MAX_BUFFERS_PER_Q;
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param->rx_mini_max_pending = 0;
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param->rx_jumbo_max_pending = 0;
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param->tx_max_pending = QDIO_MAX_BUFFERS_PER_Q;
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param->rx_pending = card->qdio.in_buf_pool.buf_count;
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param->rx_mini_pending = 0;
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param->rx_jumbo_pending = 0;
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param->tx_pending = QDIO_MAX_BUFFERS_PER_Q;
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}
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static void qeth_get_strings(struct net_device *dev, u32 stringset, u8 *data)
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{
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struct qeth_card *card = dev->ml_priv;
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char prefix[ETH_GSTRING_LEN] = "";
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unsigned int i;
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switch (stringset) {
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case ETH_SS_STATS:
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qeth_add_stat_strings(&data, prefix, card_stats,
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CARD_STATS_LEN);
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for (i = 0; i < card->qdio.no_out_queues; i++) {
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snprintf(prefix, ETH_GSTRING_LEN, "tx%u ", i);
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qeth_add_stat_strings(&data, prefix, txq_stats,
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TXQ_STATS_LEN);
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}
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break;
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default:
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WARN_ON(1);
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break;
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}
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}
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static void qeth_get_drvinfo(struct net_device *dev,
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struct ethtool_drvinfo *info)
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{
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struct qeth_card *card = dev->ml_priv;
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strlcpy(info->driver, IS_LAYER2(card) ? "qeth_l2" : "qeth_l3",
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sizeof(info->driver));
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strlcpy(info->version, "1.0", sizeof(info->version));
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strlcpy(info->fw_version, card->info.mcl_level,
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sizeof(info->fw_version));
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snprintf(info->bus_info, sizeof(info->bus_info), "%s/%s/%s",
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CARD_RDEV_ID(card), CARD_WDEV_ID(card), CARD_DDEV_ID(card));
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}
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static void qeth_get_channels(struct net_device *dev,
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struct ethtool_channels *channels)
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{
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struct qeth_card *card = dev->ml_priv;
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channels->max_rx = dev->num_rx_queues;
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channels->max_tx = card->qdio.no_out_queues;
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channels->max_other = 0;
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channels->max_combined = 0;
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channels->rx_count = dev->real_num_rx_queues;
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channels->tx_count = dev->real_num_tx_queues;
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channels->other_count = 0;
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channels->combined_count = 0;
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}
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/* Helper function to fill 'advertising' and 'supported' which are the same. */
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/* Autoneg and full-duplex are supported and advertised unconditionally. */
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/* Always advertise and support all speeds up to specified, and only one */
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/* specified port type. */
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static void qeth_set_cmd_adv_sup(struct ethtool_link_ksettings *cmd,
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int maxspeed, int porttype)
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{
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ethtool_link_ksettings_zero_link_mode(cmd, supported);
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ethtool_link_ksettings_zero_link_mode(cmd, advertising);
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ethtool_link_ksettings_zero_link_mode(cmd, lp_advertising);
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ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
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ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg);
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switch (porttype) {
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case PORT_TP:
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ethtool_link_ksettings_add_link_mode(cmd, supported, TP);
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ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);
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break;
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case PORT_FIBRE:
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ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
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ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE);
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break;
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default:
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ethtool_link_ksettings_add_link_mode(cmd, supported, TP);
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ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);
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WARN_ON_ONCE(1);
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}
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/* partially does fall through, to also select lower speeds */
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switch (maxspeed) {
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case SPEED_25000:
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ethtool_link_ksettings_add_link_mode(cmd, supported,
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25000baseSR_Full);
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ethtool_link_ksettings_add_link_mode(cmd, advertising,
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25000baseSR_Full);
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break;
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case SPEED_10000:
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ethtool_link_ksettings_add_link_mode(cmd, supported,
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10000baseT_Full);
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ethtool_link_ksettings_add_link_mode(cmd, advertising,
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10000baseT_Full);
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/* fall through */
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case SPEED_1000:
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ethtool_link_ksettings_add_link_mode(cmd, supported,
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1000baseT_Full);
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ethtool_link_ksettings_add_link_mode(cmd, advertising,
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1000baseT_Full);
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ethtool_link_ksettings_add_link_mode(cmd, supported,
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1000baseT_Half);
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ethtool_link_ksettings_add_link_mode(cmd, advertising,
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1000baseT_Half);
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/* fall through */
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case SPEED_100:
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ethtool_link_ksettings_add_link_mode(cmd, supported,
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100baseT_Full);
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ethtool_link_ksettings_add_link_mode(cmd, advertising,
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100baseT_Full);
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ethtool_link_ksettings_add_link_mode(cmd, supported,
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100baseT_Half);
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ethtool_link_ksettings_add_link_mode(cmd, advertising,
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100baseT_Half);
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/* fall through */
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case SPEED_10:
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ethtool_link_ksettings_add_link_mode(cmd, supported,
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10baseT_Full);
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ethtool_link_ksettings_add_link_mode(cmd, advertising,
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10baseT_Full);
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ethtool_link_ksettings_add_link_mode(cmd, supported,
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10baseT_Half);
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ethtool_link_ksettings_add_link_mode(cmd, advertising,
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10baseT_Half);
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break;
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default:
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ethtool_link_ksettings_add_link_mode(cmd, supported,
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10baseT_Full);
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ethtool_link_ksettings_add_link_mode(cmd, advertising,
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10baseT_Full);
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ethtool_link_ksettings_add_link_mode(cmd, supported,
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10baseT_Half);
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ethtool_link_ksettings_add_link_mode(cmd, advertising,
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10baseT_Half);
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WARN_ON_ONCE(1);
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}
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}
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static int qeth_get_link_ksettings(struct net_device *netdev,
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struct ethtool_link_ksettings *cmd)
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{
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struct qeth_card *card = netdev->ml_priv;
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enum qeth_link_types link_type;
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struct carrier_info carrier_info;
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int rc;
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if (IS_IQD(card) || IS_VM_NIC(card))
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link_type = QETH_LINK_TYPE_10GBIT_ETH;
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else
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link_type = card->info.link_type;
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cmd->base.duplex = DUPLEX_FULL;
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cmd->base.autoneg = AUTONEG_ENABLE;
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cmd->base.phy_address = 0;
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cmd->base.mdio_support = 0;
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cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
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cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_INVALID;
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switch (link_type) {
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case QETH_LINK_TYPE_FAST_ETH:
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case QETH_LINK_TYPE_LANE_ETH100:
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cmd->base.speed = SPEED_100;
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cmd->base.port = PORT_TP;
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break;
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case QETH_LINK_TYPE_GBIT_ETH:
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case QETH_LINK_TYPE_LANE_ETH1000:
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cmd->base.speed = SPEED_1000;
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cmd->base.port = PORT_FIBRE;
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break;
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case QETH_LINK_TYPE_10GBIT_ETH:
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cmd->base.speed = SPEED_10000;
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cmd->base.port = PORT_FIBRE;
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break;
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case QETH_LINK_TYPE_25GBIT_ETH:
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cmd->base.speed = SPEED_25000;
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cmd->base.port = PORT_FIBRE;
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break;
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default:
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cmd->base.speed = SPEED_10;
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cmd->base.port = PORT_TP;
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}
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qeth_set_cmd_adv_sup(cmd, cmd->base.speed, cmd->base.port);
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/* Check if we can obtain more accurate information. */
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/* If QUERY_CARD_INFO command is not supported or fails, */
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/* just return the heuristics that was filled above. */
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rc = qeth_query_card_info(card, &carrier_info);
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if (rc == -EOPNOTSUPP) /* for old hardware, return heuristic */
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return 0;
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if (rc) /* report error from the hardware operation */
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return rc;
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/* on success, fill in the information got from the hardware */
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netdev_dbg(netdev,
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"card info: card_type=0x%02x, port_mode=0x%04x, port_speed=0x%08x\n",
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carrier_info.card_type,
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carrier_info.port_mode,
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carrier_info.port_speed);
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/* Update attributes for which we've obtained more authoritative */
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/* information, leave the rest the way they where filled above. */
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switch (carrier_info.card_type) {
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case CARD_INFO_TYPE_1G_COPPER_A:
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case CARD_INFO_TYPE_1G_COPPER_B:
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cmd->base.port = PORT_TP;
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qeth_set_cmd_adv_sup(cmd, SPEED_1000, cmd->base.port);
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break;
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case CARD_INFO_TYPE_1G_FIBRE_A:
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case CARD_INFO_TYPE_1G_FIBRE_B:
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cmd->base.port = PORT_FIBRE;
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qeth_set_cmd_adv_sup(cmd, SPEED_1000, cmd->base.port);
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break;
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case CARD_INFO_TYPE_10G_FIBRE_A:
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case CARD_INFO_TYPE_10G_FIBRE_B:
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cmd->base.port = PORT_FIBRE;
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qeth_set_cmd_adv_sup(cmd, SPEED_10000, cmd->base.port);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
switch (carrier_info.port_mode) {
|
||
|
|
case CARD_INFO_PORTM_FULLDUPLEX:
|
||
|
|
cmd->base.duplex = DUPLEX_FULL;
|
||
|
|
break;
|
||
|
|
case CARD_INFO_PORTM_HALFDUPLEX:
|
||
|
|
cmd->base.duplex = DUPLEX_HALF;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
switch (carrier_info.port_speed) {
|
||
|
|
case CARD_INFO_PORTS_10M:
|
||
|
|
cmd->base.speed = SPEED_10;
|
||
|
|
break;
|
||
|
|
case CARD_INFO_PORTS_100M:
|
||
|
|
cmd->base.speed = SPEED_100;
|
||
|
|
break;
|
||
|
|
case CARD_INFO_PORTS_1G:
|
||
|
|
cmd->base.speed = SPEED_1000;
|
||
|
|
break;
|
||
|
|
case CARD_INFO_PORTS_10G:
|
||
|
|
cmd->base.speed = SPEED_10000;
|
||
|
|
break;
|
||
|
|
case CARD_INFO_PORTS_25G:
|
||
|
|
cmd->base.speed = SPEED_25000;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
const struct ethtool_ops qeth_ethtool_ops = {
|
||
|
|
.get_link = ethtool_op_get_link,
|
||
|
|
.get_ringparam = qeth_get_ringparam,
|
||
|
|
.get_strings = qeth_get_strings,
|
||
|
|
.get_ethtool_stats = qeth_get_ethtool_stats,
|
||
|
|
.get_sset_count = qeth_get_sset_count,
|
||
|
|
.get_drvinfo = qeth_get_drvinfo,
|
||
|
|
.get_channels = qeth_get_channels,
|
||
|
|
.get_link_ksettings = qeth_get_link_ksettings,
|
||
|
|
};
|
||
|
|
|
||
|
|
const struct ethtool_ops qeth_osn_ethtool_ops = {
|
||
|
|
.get_strings = qeth_get_strings,
|
||
|
|
.get_ethtool_stats = qeth_get_ethtool_stats,
|
||
|
|
.get_sset_count = qeth_get_sset_count,
|
||
|
|
.get_drvinfo = qeth_get_drvinfo,
|
||
|
|
};
|