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