s390/qeth: move ethtool code into its own file
Most of this is self-contained code. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Julian Wiedmann
committed by
David S. Miller
David S. Miller
parent
4326b5b461
commit
d896ac62d0
333
drivers/s390/net/qeth_ethtool.c
Normal file
333
drivers/s390/net/qeth_ethtool.c
Normal file
@@ -0,0 +1,333 @@
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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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static struct {
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const char str[ETH_GSTRING_LEN];
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} qeth_ethtool_stats_keys[] = {
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/* 0 */{"rx skbs"},
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{"rx buffers"},
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{"tx skbs"},
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{"tx buffers"},
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{"tx skbs no packing"},
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{"tx buffers no packing"},
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{"tx skbs packing"},
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{"tx buffers packing"},
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{"tx sg skbs"},
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{"tx buffer elements"},
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/* 10 */{"rx sg skbs"},
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{"rx sg frags"},
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{"rx sg page allocs"},
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{"tx large kbytes"},
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{"tx large count"},
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{"tx pk state ch n->p"},
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{"tx pk state ch p->n"},
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{"tx pk watermark low"},
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{"tx pk watermark high"},
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{"queue 0 buffer usage"},
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/* 20 */{"queue 1 buffer usage"},
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{"queue 2 buffer usage"},
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{"queue 3 buffer usage"},
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{"tx csum"},
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{"tx lin"},
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{"tx linfail"},
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{"rx csum"}
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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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switch (stringset) {
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case ETH_SS_STATS:
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return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_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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data[0] = card->stats.rx_packets -
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card->perf_stats.initial_rx_packets;
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data[1] = card->perf_stats.bufs_rec;
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data[2] = card->stats.tx_packets -
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card->perf_stats.initial_tx_packets;
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data[3] = card->perf_stats.bufs_sent;
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data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets
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- card->perf_stats.skbs_sent_pack;
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data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack;
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data[6] = card->perf_stats.skbs_sent_pack;
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data[7] = card->perf_stats.bufs_sent_pack;
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data[8] = card->perf_stats.sg_skbs_sent;
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data[9] = card->perf_stats.buf_elements_sent;
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data[10] = card->perf_stats.sg_skbs_rx;
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data[11] = card->perf_stats.sg_frags_rx;
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data[12] = card->perf_stats.sg_alloc_page_rx;
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data[13] = (card->perf_stats.large_send_bytes >> 10);
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data[14] = card->perf_stats.large_send_cnt;
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data[15] = card->perf_stats.sc_dp_p;
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data[16] = card->perf_stats.sc_p_dp;
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data[17] = QETH_LOW_WATERMARK_PACK;
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data[18] = QETH_HIGH_WATERMARK_PACK;
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data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers);
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data[20] = (card->qdio.no_out_queues > 1) ?
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atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0;
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data[21] = (card->qdio.no_out_queues > 2) ?
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atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0;
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data[22] = (card->qdio.no_out_queues > 3) ?
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atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0;
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data[23] = card->perf_stats.tx_csum;
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data[24] = card->perf_stats.tx_lin;
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data[25] = card->perf_stats.tx_linfail;
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data[26] = card->perf_stats.rx_csum;
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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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switch (stringset) {
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case ETH_SS_STATS:
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memcpy(data, &qeth_ethtool_stats_keys,
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sizeof(qeth_ethtool_stats_keys));
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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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/* 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);
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break;
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}
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switch (carrier_info.port_mode) {
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case CARD_INFO_PORTM_FULLDUPLEX:
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cmd->base.duplex = DUPLEX_FULL;
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break;
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case CARD_INFO_PORTM_HALFDUPLEX:
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cmd->base.duplex = DUPLEX_HALF;
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break;
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}
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switch (carrier_info.port_speed) {
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case CARD_INFO_PORTS_10M:
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cmd->base.speed = SPEED_10;
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break;
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case CARD_INFO_PORTS_100M:
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cmd->base.speed = SPEED_100;
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break;
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case CARD_INFO_PORTS_1G:
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cmd->base.speed = SPEED_1000;
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break;
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case CARD_INFO_PORTS_10G:
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cmd->base.speed = SPEED_10000;
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break;
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case CARD_INFO_PORTS_25G:
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cmd->base.speed = SPEED_25000;
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break;
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}
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return 0;
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}
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const struct ethtool_ops qeth_ethtool_ops = {
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.get_link = ethtool_op_get_link,
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.get_strings = qeth_get_strings,
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.get_ethtool_stats = qeth_get_ethtool_stats,
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.get_sset_count = qeth_get_sset_count,
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.get_drvinfo = qeth_get_drvinfo,
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.get_link_ksettings = qeth_get_link_ksettings,
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};
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const struct ethtool_ops qeth_osn_ethtool_ops = {
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.get_strings = qeth_get_strings,
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.get_ethtool_stats = qeth_get_ethtool_stats,
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.get_sset_count = qeth_get_sset_count,
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.get_drvinfo = qeth_get_drvinfo,
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};
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Block a user