diff options
Diffstat (limited to 'drivers/net/ethernet/microsoft/mana/mana_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/microsoft/mana/mana_ethtool.c | 534 |
1 files changed, 534 insertions, 0 deletions
diff --git a/drivers/net/ethernet/microsoft/mana/mana_ethtool.c b/drivers/net/ethernet/microsoft/mana/mana_ethtool.c new file mode 100644 index 000000000000..0e2f4343ac67 --- /dev/null +++ b/drivers/net/ethernet/microsoft/mana/mana_ethtool.c @@ -0,0 +1,534 @@ +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +/* Copyright (c) 2021, Microsoft Corporation. */ + +#include <linux/inetdevice.h> +#include <linux/etherdevice.h> +#include <linux/ethtool.h> + +#include <net/mana/mana.h> + +struct mana_stats_desc { + char name[ETH_GSTRING_LEN]; + u16 offset; +}; + +static const struct mana_stats_desc mana_eth_stats[] = { + {"stop_queue", offsetof(struct mana_ethtool_stats, stop_queue)}, + {"wake_queue", offsetof(struct mana_ethtool_stats, wake_queue)}, + {"tx_cq_err", offsetof(struct mana_ethtool_stats, tx_cqe_err)}, + {"tx_cqe_unknown_type", offsetof(struct mana_ethtool_stats, + tx_cqe_unknown_type)}, + {"tx_linear_pkt_cnt", offsetof(struct mana_ethtool_stats, + tx_linear_pkt_cnt)}, + {"rx_coalesced_err", offsetof(struct mana_ethtool_stats, + rx_coalesced_err)}, + {"rx_cqe_unknown_type", offsetof(struct mana_ethtool_stats, + rx_cqe_unknown_type)}, +}; + +static const struct mana_stats_desc mana_hc_stats[] = { + {"hc_rx_discards_no_wqe", offsetof(struct mana_ethtool_hc_stats, + hc_rx_discards_no_wqe)}, + {"hc_rx_err_vport_disabled", offsetof(struct mana_ethtool_hc_stats, + hc_rx_err_vport_disabled)}, + {"hc_rx_bytes", offsetof(struct mana_ethtool_hc_stats, hc_rx_bytes)}, + {"hc_rx_ucast_pkts", offsetof(struct mana_ethtool_hc_stats, + hc_rx_ucast_pkts)}, + {"hc_rx_ucast_bytes", offsetof(struct mana_ethtool_hc_stats, + hc_rx_ucast_bytes)}, + {"hc_rx_bcast_pkts", offsetof(struct mana_ethtool_hc_stats, + hc_rx_bcast_pkts)}, + {"hc_rx_bcast_bytes", offsetof(struct mana_ethtool_hc_stats, + hc_rx_bcast_bytes)}, + {"hc_rx_mcast_pkts", offsetof(struct mana_ethtool_hc_stats, + hc_rx_mcast_pkts)}, + {"hc_rx_mcast_bytes", offsetof(struct mana_ethtool_hc_stats, + hc_rx_mcast_bytes)}, + {"hc_tx_err_gf_disabled", offsetof(struct mana_ethtool_hc_stats, + hc_tx_err_gf_disabled)}, + {"hc_tx_err_vport_disabled", offsetof(struct mana_ethtool_hc_stats, + hc_tx_err_vport_disabled)}, + {"hc_tx_err_inval_vportoffset_pkt", + offsetof(struct mana_ethtool_hc_stats, + hc_tx_err_inval_vportoffset_pkt)}, + {"hc_tx_err_vlan_enforcement", offsetof(struct mana_ethtool_hc_stats, + hc_tx_err_vlan_enforcement)}, + {"hc_tx_err_eth_type_enforcement", + offsetof(struct mana_ethtool_hc_stats, hc_tx_err_eth_type_enforcement)}, + {"hc_tx_err_sa_enforcement", offsetof(struct mana_ethtool_hc_stats, + hc_tx_err_sa_enforcement)}, + {"hc_tx_err_sqpdid_enforcement", + offsetof(struct mana_ethtool_hc_stats, hc_tx_err_sqpdid_enforcement)}, + {"hc_tx_err_cqpdid_enforcement", + offsetof(struct mana_ethtool_hc_stats, hc_tx_err_cqpdid_enforcement)}, + {"hc_tx_err_mtu_violation", offsetof(struct mana_ethtool_hc_stats, + hc_tx_err_mtu_violation)}, + {"hc_tx_err_inval_oob", offsetof(struct mana_ethtool_hc_stats, + hc_tx_err_inval_oob)}, + {"hc_tx_err_gdma", offsetof(struct mana_ethtool_hc_stats, + hc_tx_err_gdma)}, + {"hc_tx_bytes", offsetof(struct mana_ethtool_hc_stats, hc_tx_bytes)}, + {"hc_tx_ucast_pkts", offsetof(struct mana_ethtool_hc_stats, + hc_tx_ucast_pkts)}, + {"hc_tx_ucast_bytes", offsetof(struct mana_ethtool_hc_stats, + hc_tx_ucast_bytes)}, + {"hc_tx_bcast_pkts", offsetof(struct mana_ethtool_hc_stats, + hc_tx_bcast_pkts)}, + {"hc_tx_bcast_bytes", offsetof(struct mana_ethtool_hc_stats, + hc_tx_bcast_bytes)}, + {"hc_tx_mcast_pkts", offsetof(struct mana_ethtool_hc_stats, + hc_tx_mcast_pkts)}, + {"hc_tx_mcast_bytes", offsetof(struct mana_ethtool_hc_stats, + hc_tx_mcast_bytes)}, +}; + +static const struct mana_stats_desc mana_phy_stats[] = { + { "hc_rx_pkt_drop_phy", offsetof(struct mana_ethtool_phy_stats, rx_pkt_drop_phy) }, + { "hc_tx_pkt_drop_phy", offsetof(struct mana_ethtool_phy_stats, tx_pkt_drop_phy) }, + { "hc_tc0_rx_pkt_phy", offsetof(struct mana_ethtool_phy_stats, rx_pkt_tc0_phy) }, + { "hc_tc0_rx_byte_phy", offsetof(struct mana_ethtool_phy_stats, rx_byte_tc0_phy) }, + { "hc_tc0_tx_pkt_phy", offsetof(struct mana_ethtool_phy_stats, tx_pkt_tc0_phy) }, + { "hc_tc0_tx_byte_phy", offsetof(struct mana_ethtool_phy_stats, tx_byte_tc0_phy) }, + { "hc_tc1_rx_pkt_phy", offsetof(struct mana_ethtool_phy_stats, rx_pkt_tc1_phy) }, + { "hc_tc1_rx_byte_phy", offsetof(struct mana_ethtool_phy_stats, rx_byte_tc1_phy) }, + { "hc_tc1_tx_pkt_phy", offsetof(struct mana_ethtool_phy_stats, tx_pkt_tc1_phy) }, + { "hc_tc1_tx_byte_phy", offsetof(struct mana_ethtool_phy_stats, tx_byte_tc1_phy) }, + { "hc_tc2_rx_pkt_phy", offsetof(struct mana_ethtool_phy_stats, rx_pkt_tc2_phy) }, + { "hc_tc2_rx_byte_phy", offsetof(struct mana_ethtool_phy_stats, rx_byte_tc2_phy) }, + { "hc_tc2_tx_pkt_phy", offsetof(struct mana_ethtool_phy_stats, tx_pkt_tc2_phy) }, + { "hc_tc2_tx_byte_phy", offsetof(struct mana_ethtool_phy_stats, tx_byte_tc2_phy) }, + { "hc_tc3_rx_pkt_phy", offsetof(struct mana_ethtool_phy_stats, rx_pkt_tc3_phy) }, + { "hc_tc3_rx_byte_phy", offsetof(struct mana_ethtool_phy_stats, rx_byte_tc3_phy) }, + { "hc_tc3_tx_pkt_phy", offsetof(struct mana_ethtool_phy_stats, tx_pkt_tc3_phy) }, + { "hc_tc3_tx_byte_phy", offsetof(struct mana_ethtool_phy_stats, tx_byte_tc3_phy) }, + { "hc_tc4_rx_pkt_phy", offsetof(struct mana_ethtool_phy_stats, rx_pkt_tc4_phy) }, + { "hc_tc4_rx_byte_phy", offsetof(struct mana_ethtool_phy_stats, rx_byte_tc4_phy) }, + { "hc_tc4_tx_pkt_phy", offsetof(struct mana_ethtool_phy_stats, tx_pkt_tc4_phy) }, + { "hc_tc4_tx_byte_phy", offsetof(struct mana_ethtool_phy_stats, tx_byte_tc4_phy) }, + { "hc_tc5_rx_pkt_phy", offsetof(struct mana_ethtool_phy_stats, rx_pkt_tc5_phy) }, + { "hc_tc5_rx_byte_phy", offsetof(struct mana_ethtool_phy_stats, rx_byte_tc5_phy) }, + { "hc_tc5_tx_pkt_phy", offsetof(struct mana_ethtool_phy_stats, tx_pkt_tc5_phy) }, + { "hc_tc5_tx_byte_phy", offsetof(struct mana_ethtool_phy_stats, tx_byte_tc5_phy) }, + { "hc_tc6_rx_pkt_phy", offsetof(struct mana_ethtool_phy_stats, rx_pkt_tc6_phy) }, + { "hc_tc6_rx_byte_phy", offsetof(struct mana_ethtool_phy_stats, rx_byte_tc6_phy) }, + { "hc_tc6_tx_pkt_phy", offsetof(struct mana_ethtool_phy_stats, tx_pkt_tc6_phy) }, + { "hc_tc6_tx_byte_phy", offsetof(struct mana_ethtool_phy_stats, tx_byte_tc6_phy) }, + { "hc_tc7_rx_pkt_phy", offsetof(struct mana_ethtool_phy_stats, rx_pkt_tc7_phy) }, + { "hc_tc7_rx_byte_phy", offsetof(struct mana_ethtool_phy_stats, rx_byte_tc7_phy) }, + { "hc_tc7_tx_pkt_phy", offsetof(struct mana_ethtool_phy_stats, tx_pkt_tc7_phy) }, + { "hc_tc7_tx_byte_phy", offsetof(struct mana_ethtool_phy_stats, tx_byte_tc7_phy) }, + { "hc_tc0_rx_pause_phy", offsetof(struct mana_ethtool_phy_stats, rx_pause_tc0_phy) }, + { "hc_tc0_tx_pause_phy", offsetof(struct mana_ethtool_phy_stats, tx_pause_tc0_phy) }, + { "hc_tc1_rx_pause_phy", offsetof(struct mana_ethtool_phy_stats, rx_pause_tc1_phy) }, + { "hc_tc1_tx_pause_phy", offsetof(struct mana_ethtool_phy_stats, tx_pause_tc1_phy) }, + { "hc_tc2_rx_pause_phy", offsetof(struct mana_ethtool_phy_stats, rx_pause_tc2_phy) }, + { "hc_tc2_tx_pause_phy", offsetof(struct mana_ethtool_phy_stats, tx_pause_tc2_phy) }, + { "hc_tc3_rx_pause_phy", offsetof(struct mana_ethtool_phy_stats, rx_pause_tc3_phy) }, + { "hc_tc3_tx_pause_phy", offsetof(struct mana_ethtool_phy_stats, tx_pause_tc3_phy) }, + { "hc_tc4_rx_pause_phy", offsetof(struct mana_ethtool_phy_stats, rx_pause_tc4_phy) }, + { "hc_tc4_tx_pause_phy", offsetof(struct mana_ethtool_phy_stats, tx_pause_tc4_phy) }, + { "hc_tc5_rx_pause_phy", offsetof(struct mana_ethtool_phy_stats, rx_pause_tc5_phy) }, + { "hc_tc5_tx_pause_phy", offsetof(struct mana_ethtool_phy_stats, tx_pause_tc5_phy) }, + { "hc_tc6_rx_pause_phy", offsetof(struct mana_ethtool_phy_stats, rx_pause_tc6_phy) }, + { "hc_tc6_tx_pause_phy", offsetof(struct mana_ethtool_phy_stats, tx_pause_tc6_phy) }, + { "hc_tc7_rx_pause_phy", offsetof(struct mana_ethtool_phy_stats, rx_pause_tc7_phy) }, + { "hc_tc7_tx_pause_phy", offsetof(struct mana_ethtool_phy_stats, tx_pause_tc7_phy) }, +}; + +static int mana_get_sset_count(struct net_device *ndev, int stringset) +{ + struct mana_port_context *apc = netdev_priv(ndev); + unsigned int num_queues = apc->num_queues; + + if (stringset != ETH_SS_STATS) + return -EINVAL; + + return ARRAY_SIZE(mana_eth_stats) + ARRAY_SIZE(mana_phy_stats) + ARRAY_SIZE(mana_hc_stats) + + num_queues * (MANA_STATS_RX_COUNT + MANA_STATS_TX_COUNT); +} + +static void mana_get_strings(struct net_device *ndev, u32 stringset, u8 *data) +{ + struct mana_port_context *apc = netdev_priv(ndev); + unsigned int num_queues = apc->num_queues; + int i; + + if (stringset != ETH_SS_STATS) + return; + for (i = 0; i < ARRAY_SIZE(mana_eth_stats); i++) + ethtool_puts(&data, mana_eth_stats[i].name); + + for (i = 0; i < ARRAY_SIZE(mana_hc_stats); i++) + ethtool_puts(&data, mana_hc_stats[i].name); + + for (i = 0; i < ARRAY_SIZE(mana_phy_stats); i++) + ethtool_puts(&data, mana_phy_stats[i].name); + + for (i = 0; i < num_queues; i++) { + ethtool_sprintf(&data, "rx_%d_packets", i); + ethtool_sprintf(&data, "rx_%d_bytes", i); + ethtool_sprintf(&data, "rx_%d_xdp_drop", i); + ethtool_sprintf(&data, "rx_%d_xdp_tx", i); + ethtool_sprintf(&data, "rx_%d_xdp_redirect", i); + } + + for (i = 0; i < num_queues; i++) { + ethtool_sprintf(&data, "tx_%d_packets", i); + ethtool_sprintf(&data, "tx_%d_bytes", i); + ethtool_sprintf(&data, "tx_%d_xdp_xmit", i); + ethtool_sprintf(&data, "tx_%d_tso_packets", i); + ethtool_sprintf(&data, "tx_%d_tso_bytes", i); + ethtool_sprintf(&data, "tx_%d_tso_inner_packets", i); + ethtool_sprintf(&data, "tx_%d_tso_inner_bytes", i); + ethtool_sprintf(&data, "tx_%d_long_pkt_fmt", i); + ethtool_sprintf(&data, "tx_%d_short_pkt_fmt", i); + ethtool_sprintf(&data, "tx_%d_csum_partial", i); + ethtool_sprintf(&data, "tx_%d_mana_map_err", i); + } +} + +static void mana_get_ethtool_stats(struct net_device *ndev, + struct ethtool_stats *e_stats, u64 *data) +{ + struct mana_port_context *apc = netdev_priv(ndev); + unsigned int num_queues = apc->num_queues; + void *eth_stats = &apc->eth_stats; + void *hc_stats = &apc->ac->hc_stats; + void *phy_stats = &apc->phy_stats; + struct mana_stats_rx *rx_stats; + struct mana_stats_tx *tx_stats; + unsigned int start; + u64 packets, bytes; + u64 xdp_redirect; + u64 xdp_xmit; + u64 xdp_drop; + u64 xdp_tx; + u64 tso_packets; + u64 tso_bytes; + u64 tso_inner_packets; + u64 tso_inner_bytes; + u64 long_pkt_fmt; + u64 short_pkt_fmt; + u64 csum_partial; + u64 mana_map_err; + int q, i = 0; + + if (!apc->port_is_up) + return; + + /* We call this mana function to get the phy stats from GDMA and includes + * aggregate tx/rx drop counters, Per-TC(Traffic Channel) tx/rx and pause + * counters. + */ + mana_query_phy_stats(apc); + + for (q = 0; q < ARRAY_SIZE(mana_eth_stats); q++) + data[i++] = *(u64 *)(eth_stats + mana_eth_stats[q].offset); + + for (q = 0; q < ARRAY_SIZE(mana_hc_stats); q++) + data[i++] = *(u64 *)(hc_stats + mana_hc_stats[q].offset); + + for (q = 0; q < ARRAY_SIZE(mana_phy_stats); q++) + data[i++] = *(u64 *)(phy_stats + mana_phy_stats[q].offset); + + for (q = 0; q < num_queues; q++) { + rx_stats = &apc->rxqs[q]->stats; + + do { + start = u64_stats_fetch_begin(&rx_stats->syncp); + packets = rx_stats->packets; + bytes = rx_stats->bytes; + xdp_drop = rx_stats->xdp_drop; + xdp_tx = rx_stats->xdp_tx; + xdp_redirect = rx_stats->xdp_redirect; + } while (u64_stats_fetch_retry(&rx_stats->syncp, start)); + + data[i++] = packets; + data[i++] = bytes; + data[i++] = xdp_drop; + data[i++] = xdp_tx; + data[i++] = xdp_redirect; + } + + for (q = 0; q < num_queues; q++) { + tx_stats = &apc->tx_qp[q].txq.stats; + + do { + start = u64_stats_fetch_begin(&tx_stats->syncp); + packets = tx_stats->packets; + bytes = tx_stats->bytes; + xdp_xmit = tx_stats->xdp_xmit; + tso_packets = tx_stats->tso_packets; + tso_bytes = tx_stats->tso_bytes; + tso_inner_packets = tx_stats->tso_inner_packets; + tso_inner_bytes = tx_stats->tso_inner_bytes; + long_pkt_fmt = tx_stats->long_pkt_fmt; + short_pkt_fmt = tx_stats->short_pkt_fmt; + csum_partial = tx_stats->csum_partial; + mana_map_err = tx_stats->mana_map_err; + } while (u64_stats_fetch_retry(&tx_stats->syncp, start)); + + data[i++] = packets; + data[i++] = bytes; + data[i++] = xdp_xmit; + data[i++] = tso_packets; + data[i++] = tso_bytes; + data[i++] = tso_inner_packets; + data[i++] = tso_inner_bytes; + data[i++] = long_pkt_fmt; + data[i++] = short_pkt_fmt; + data[i++] = csum_partial; + data[i++] = mana_map_err; + } +} + +static int mana_get_rxnfc(struct net_device *ndev, struct ethtool_rxnfc *cmd, + u32 *rules) +{ + struct mana_port_context *apc = netdev_priv(ndev); + + switch (cmd->cmd) { + case ETHTOOL_GRXRINGS: + cmd->data = apc->num_queues; + return 0; + } + + return -EOPNOTSUPP; +} + +static u32 mana_get_rxfh_key_size(struct net_device *ndev) +{ + return MANA_HASH_KEY_SIZE; +} + +static u32 mana_rss_indir_size(struct net_device *ndev) +{ + struct mana_port_context *apc = netdev_priv(ndev); + + return apc->indir_table_sz; +} + +static int mana_get_rxfh(struct net_device *ndev, + struct ethtool_rxfh_param *rxfh) +{ + struct mana_port_context *apc = netdev_priv(ndev); + int i; + + rxfh->hfunc = ETH_RSS_HASH_TOP; /* Toeplitz */ + + if (rxfh->indir) { + for (i = 0; i < apc->indir_table_sz; i++) + rxfh->indir[i] = apc->indir_table[i]; + } + + if (rxfh->key) + memcpy(rxfh->key, apc->hashkey, MANA_HASH_KEY_SIZE); + + return 0; +} + +static int mana_set_rxfh(struct net_device *ndev, + struct ethtool_rxfh_param *rxfh, + struct netlink_ext_ack *extack) +{ + struct mana_port_context *apc = netdev_priv(ndev); + bool update_hash = false, update_table = false; + u8 save_key[MANA_HASH_KEY_SIZE]; + u32 *save_table; + int i, err; + + if (!apc->port_is_up) + return -EOPNOTSUPP; + + if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && + rxfh->hfunc != ETH_RSS_HASH_TOP) + return -EOPNOTSUPP; + + save_table = kcalloc(apc->indir_table_sz, sizeof(u32), GFP_KERNEL); + if (!save_table) + return -ENOMEM; + + if (rxfh->indir) { + for (i = 0; i < apc->indir_table_sz; i++) + if (rxfh->indir[i] >= apc->num_queues) { + err = -EINVAL; + goto cleanup; + } + + update_table = true; + for (i = 0; i < apc->indir_table_sz; i++) { + save_table[i] = apc->indir_table[i]; + apc->indir_table[i] = rxfh->indir[i]; + } + } + + if (rxfh->key) { + update_hash = true; + memcpy(save_key, apc->hashkey, MANA_HASH_KEY_SIZE); + memcpy(apc->hashkey, rxfh->key, MANA_HASH_KEY_SIZE); + } + + err = mana_config_rss(apc, TRI_STATE_TRUE, update_hash, update_table); + + if (err) { /* recover to original values */ + if (update_table) { + for (i = 0; i < apc->indir_table_sz; i++) + apc->indir_table[i] = save_table[i]; + } + + if (update_hash) + memcpy(apc->hashkey, save_key, MANA_HASH_KEY_SIZE); + + mana_config_rss(apc, TRI_STATE_TRUE, update_hash, update_table); + } + +cleanup: + kfree(save_table); + + return err; +} + +static void mana_get_channels(struct net_device *ndev, + struct ethtool_channels *channel) +{ + struct mana_port_context *apc = netdev_priv(ndev); + + channel->max_combined = apc->max_queues; + channel->combined_count = apc->num_queues; +} + +static int mana_set_channels(struct net_device *ndev, + struct ethtool_channels *channels) +{ + struct mana_port_context *apc = netdev_priv(ndev); + unsigned int new_count = channels->combined_count; + unsigned int old_count = apc->num_queues; + int err; + + err = mana_pre_alloc_rxbufs(apc, ndev->mtu, new_count); + if (err) { + netdev_err(ndev, "Insufficient memory for new allocations"); + return err; + } + + err = mana_detach(ndev, false); + if (err) { + netdev_err(ndev, "mana_detach failed: %d\n", err); + goto out; + } + + apc->num_queues = new_count; + err = mana_attach(ndev); + if (err) { + apc->num_queues = old_count; + netdev_err(ndev, "mana_attach failed: %d\n", err); + } + +out: + mana_pre_dealloc_rxbufs(apc); + return err; +} + +static void mana_get_ringparam(struct net_device *ndev, + struct ethtool_ringparam *ring, + struct kernel_ethtool_ringparam *kernel_ring, + struct netlink_ext_ack *extack) +{ + struct mana_port_context *apc = netdev_priv(ndev); + + ring->rx_pending = apc->rx_queue_size; + ring->tx_pending = apc->tx_queue_size; + ring->rx_max_pending = MAX_RX_BUFFERS_PER_QUEUE; + ring->tx_max_pending = MAX_TX_BUFFERS_PER_QUEUE; +} + +static int mana_set_ringparam(struct net_device *ndev, + struct ethtool_ringparam *ring, + struct kernel_ethtool_ringparam *kernel_ring, + struct netlink_ext_ack *extack) +{ + struct mana_port_context *apc = netdev_priv(ndev); + u32 new_tx, new_rx; + u32 old_tx, old_rx; + int err; + + old_tx = apc->tx_queue_size; + old_rx = apc->rx_queue_size; + + if (ring->tx_pending < MIN_TX_BUFFERS_PER_QUEUE) { + NL_SET_ERR_MSG_FMT(extack, "tx:%d less than the min:%d", ring->tx_pending, + MIN_TX_BUFFERS_PER_QUEUE); + return -EINVAL; + } + + if (ring->rx_pending < MIN_RX_BUFFERS_PER_QUEUE) { + NL_SET_ERR_MSG_FMT(extack, "rx:%d less than the min:%d", ring->rx_pending, + MIN_RX_BUFFERS_PER_QUEUE); + return -EINVAL; + } + + new_rx = roundup_pow_of_two(ring->rx_pending); + new_tx = roundup_pow_of_two(ring->tx_pending); + netdev_info(ndev, "Using nearest power of 2 values for Txq:%d Rxq:%d\n", + new_tx, new_rx); + + /* pre-allocating new buffers to prevent failures in mana_attach() later */ + apc->rx_queue_size = new_rx; + err = mana_pre_alloc_rxbufs(apc, ndev->mtu, apc->num_queues); + apc->rx_queue_size = old_rx; + if (err) { + netdev_err(ndev, "Insufficient memory for new allocations\n"); + return err; + } + + err = mana_detach(ndev, false); + if (err) { + netdev_err(ndev, "mana_detach failed: %d\n", err); + goto out; + } + + apc->tx_queue_size = new_tx; + apc->rx_queue_size = new_rx; + + err = mana_attach(ndev); + if (err) { + netdev_err(ndev, "mana_attach failed: %d\n", err); + apc->tx_queue_size = old_tx; + apc->rx_queue_size = old_rx; + } +out: + mana_pre_dealloc_rxbufs(apc); + return err; +} + +static int mana_get_link_ksettings(struct net_device *ndev, + struct ethtool_link_ksettings *cmd) +{ + struct mana_port_context *apc = netdev_priv(ndev); + int err; + + err = mana_query_link_cfg(apc); + cmd->base.speed = (err) ? SPEED_UNKNOWN : apc->max_speed; + + cmd->base.duplex = DUPLEX_FULL; + cmd->base.port = PORT_OTHER; + + return 0; +} + +const struct ethtool_ops mana_ethtool_ops = { + .get_ethtool_stats = mana_get_ethtool_stats, + .get_sset_count = mana_get_sset_count, + .get_strings = mana_get_strings, + .get_rxnfc = mana_get_rxnfc, + .get_rxfh_key_size = mana_get_rxfh_key_size, + .get_rxfh_indir_size = mana_rss_indir_size, + .get_rxfh = mana_get_rxfh, + .set_rxfh = mana_set_rxfh, + .get_channels = mana_get_channels, + .set_channels = mana_set_channels, + .get_ringparam = mana_get_ringparam, + .set_ringparam = mana_set_ringparam, + .get_link_ksettings = mana_get_link_ksettings, + .get_link = ethtool_op_get_link, +}; |