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path: root/drivers/s390/net/qeth_ethtool.c
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Diffstat (limited to 'drivers/s390/net/qeth_ethtool.c')
-rw-r--r--drivers/s390/net/qeth_ethtool.c333
1 files changed, 333 insertions, 0 deletions
diff --git a/drivers/s390/net/qeth_ethtool.c b/drivers/s390/net/qeth_ethtool.c
new file mode 100644
index 000000000000..a275f31150b2
--- /dev/null
+++ b/drivers/s390/net/qeth_ethtool.c
@@ -0,0 +1,333 @@
+// 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"
+
+static struct {
+ const char str[ETH_GSTRING_LEN];
+} qeth_ethtool_stats_keys[] = {
+/* 0 */{"rx skbs"},
+ {"rx buffers"},
+ {"tx skbs"},
+ {"tx buffers"},
+ {"tx skbs no packing"},
+ {"tx buffers no packing"},
+ {"tx skbs packing"},
+ {"tx buffers packing"},
+ {"tx sg skbs"},
+ {"tx buffer elements"},
+/* 10 */{"rx sg skbs"},
+ {"rx sg frags"},
+ {"rx sg page allocs"},
+ {"tx large kbytes"},
+ {"tx large count"},
+ {"tx pk state ch n->p"},
+ {"tx pk state ch p->n"},
+ {"tx pk watermark low"},
+ {"tx pk watermark high"},
+ {"queue 0 buffer usage"},
+/* 20 */{"queue 1 buffer usage"},
+ {"queue 2 buffer usage"},
+ {"queue 3 buffer usage"},
+ {"tx csum"},
+ {"tx lin"},
+ {"tx linfail"},
+ {"rx csum"}
+};
+
+static int qeth_get_sset_count(struct net_device *dev, int stringset)
+{
+ switch (stringset) {
+ case ETH_SS_STATS:
+ return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_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;
+
+ data[0] = card->stats.rx_packets -
+ card->perf_stats.initial_rx_packets;
+ data[1] = card->perf_stats.bufs_rec;
+ data[2] = card->stats.tx_packets -
+ card->perf_stats.initial_tx_packets;
+ data[3] = card->perf_stats.bufs_sent;
+ data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets
+ - card->perf_stats.skbs_sent_pack;
+ data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack;
+ data[6] = card->perf_stats.skbs_sent_pack;
+ data[7] = card->perf_stats.bufs_sent_pack;
+ data[8] = card->perf_stats.sg_skbs_sent;
+ data[9] = card->perf_stats.buf_elements_sent;
+ data[10] = card->perf_stats.sg_skbs_rx;
+ data[11] = card->perf_stats.sg_frags_rx;
+ data[12] = card->perf_stats.sg_alloc_page_rx;
+ data[13] = (card->perf_stats.large_send_bytes >> 10);
+ data[14] = card->perf_stats.large_send_cnt;
+ data[15] = card->perf_stats.sc_dp_p;
+ data[16] = card->perf_stats.sc_p_dp;
+ data[17] = QETH_LOW_WATERMARK_PACK;
+ data[18] = QETH_HIGH_WATERMARK_PACK;
+ data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers);
+ data[20] = (card->qdio.no_out_queues > 1) ?
+ atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0;
+ data[21] = (card->qdio.no_out_queues > 2) ?
+ atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0;
+ data[22] = (card->qdio.no_out_queues > 3) ?
+ atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0;
+ data[23] = card->perf_stats.tx_csum;
+ data[24] = card->perf_stats.tx_lin;
+ data[25] = card->perf_stats.tx_linfail;
+ data[26] = card->perf_stats.rx_csum;
+}
+
+static void qeth_get_strings(struct net_device *dev, u32 stringset, u8 *data)
+{
+ switch (stringset) {
+ case ETH_SS_STATS:
+ memcpy(data, &qeth_ethtool_stats_keys,
+ sizeof(qeth_ethtool_stats_keys));
+ 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));
+}
+
+/* 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_strings = qeth_get_strings,
+ .get_ethtool_stats = qeth_get_ethtool_stats,
+ .get_sset_count = qeth_get_sset_count,
+ .get_drvinfo = qeth_get_drvinfo,
+ .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,
+};
generated by cgit (git 2.34.1) at 2024-05-26 13:08:52 +0000