--- /dev/null
+/*
+ * Copyright (c) 2015, Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "en.h"
+
+static void mlx5e_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *drvinfo)
+{
+ struct mlx5e_priv *priv = netdev_priv(dev);
+ struct mlx5_core_dev *mdev = priv->mdev;
+
+ strlcpy(drvinfo->driver, DRIVER_NAME, sizeof(drvinfo->driver));
+ strlcpy(drvinfo->version, DRIVER_VERSION " (" DRIVER_RELDATE ")",
+ sizeof(drvinfo->version));
+ snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+ "%d.%d.%d",
+ fw_rev_maj(mdev), fw_rev_min(mdev), fw_rev_sub(mdev));
+ strlcpy(drvinfo->bus_info, pci_name(mdev->pdev),
+ sizeof(drvinfo->bus_info));
+}
+
+static const struct {
+ u32 supported;
+ u32 advertised;
+ u32 speed;
+} ptys2ethtool_table[MLX5E_LINK_MODES_NUMBER] = {
+ [MLX5E_1000BASE_CX_SGMII] = {
+ .supported = SUPPORTED_1000baseKX_Full,
+ .advertised = ADVERTISED_1000baseKX_Full,
+ .speed = 1000,
+ },
+ [MLX5E_1000BASE_KX] = {
+ .supported = SUPPORTED_1000baseKX_Full,
+ .advertised = ADVERTISED_1000baseKX_Full,
+ .speed = 1000,
+ },
+ [MLX5E_10GBASE_CX4] = {
+ .supported = SUPPORTED_10000baseKX4_Full,
+ .advertised = ADVERTISED_10000baseKX4_Full,
+ .speed = 10000,
+ },
+ [MLX5E_10GBASE_KX4] = {
+ .supported = SUPPORTED_10000baseKX4_Full,
+ .advertised = ADVERTISED_10000baseKX4_Full,
+ .speed = 10000,
+ },
+ [MLX5E_10GBASE_KR] = {
+ .supported = SUPPORTED_10000baseKR_Full,
+ .advertised = ADVERTISED_10000baseKR_Full,
+ .speed = 10000,
+ },
+ [MLX5E_20GBASE_KR2] = {
+ .supported = SUPPORTED_20000baseKR2_Full,
+ .advertised = ADVERTISED_20000baseKR2_Full,
+ .speed = 20000,
+ },
+ [MLX5E_40GBASE_CR4] = {
+ .supported = SUPPORTED_40000baseCR4_Full,
+ .advertised = ADVERTISED_40000baseCR4_Full,
+ .speed = 40000,
+ },
+ [MLX5E_40GBASE_KR4] = {
+ .supported = SUPPORTED_40000baseKR4_Full,
+ .advertised = ADVERTISED_40000baseKR4_Full,
+ .speed = 40000,
+ },
+ [MLX5E_56GBASE_R4] = {
+ .supported = SUPPORTED_56000baseKR4_Full,
+ .advertised = ADVERTISED_56000baseKR4_Full,
+ .speed = 56000,
+ },
+ [MLX5E_10GBASE_CR] = {
+ .supported = SUPPORTED_10000baseKR_Full,
+ .advertised = ADVERTISED_10000baseKR_Full,
+ .speed = 10000,
+ },
+ [MLX5E_10GBASE_SR] = {
+ .supported = SUPPORTED_10000baseKR_Full,
+ .advertised = ADVERTISED_10000baseKR_Full,
+ .speed = 10000,
+ },
+ [MLX5E_10GBASE_ER] = {
+ .supported = SUPPORTED_10000baseKR_Full,
+ .advertised = ADVERTISED_10000baseKR_Full,
+ .speed = 10000,
+ },
+ [MLX5E_40GBASE_SR4] = {
+ .supported = SUPPORTED_40000baseSR4_Full,
+ .advertised = ADVERTISED_40000baseSR4_Full,
+ .speed = 40000,
+ },
+ [MLX5E_40GBASE_LR4] = {
+ .supported = SUPPORTED_40000baseLR4_Full,
+ .advertised = ADVERTISED_40000baseLR4_Full,
+ .speed = 40000,
+ },
+ [MLX5E_100GBASE_CR4] = {
+ .speed = 100000,
+ },
+ [MLX5E_100GBASE_SR4] = {
+ .speed = 100000,
+ },
+ [MLX5E_100GBASE_KR4] = {
+ .speed = 100000,
+ },
+ [MLX5E_100GBASE_LR4] = {
+ .speed = 100000,
+ },
+ [MLX5E_100BASE_TX] = {
+ .speed = 100,
+ },
+ [MLX5E_100BASE_T] = {
+ .supported = SUPPORTED_100baseT_Full,
+ .advertised = ADVERTISED_100baseT_Full,
+ .speed = 100,
+ },
+ [MLX5E_10GBASE_T] = {
+ .supported = SUPPORTED_10000baseT_Full,
+ .advertised = ADVERTISED_10000baseT_Full,
+ .speed = 1000,
+ },
+ [MLX5E_25GBASE_CR] = {
+ .speed = 25000,
+ },
+ [MLX5E_25GBASE_KR] = {
+ .speed = 25000,
+ },
+ [MLX5E_25GBASE_SR] = {
+ .speed = 25000,
+ },
+ [MLX5E_50GBASE_CR2] = {
+ .speed = 50000,
+ },
+ [MLX5E_50GBASE_KR2] = {
+ .speed = 50000,
+ },
+};
+
+static int mlx5e_get_sset_count(struct net_device *dev, int sset)
+{
+ struct mlx5e_priv *priv = netdev_priv(dev);
+
+ switch (sset) {
+ case ETH_SS_STATS:
+ return NUM_VPORT_COUNTERS +
+ priv->params.num_channels * NUM_RQ_STATS +
+ priv->params.num_channels * priv->num_tc *
+ NUM_SQ_STATS;
+ /* fallthrough */
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void mlx5e_get_strings(struct net_device *dev,
+ uint32_t stringset, uint8_t *data)
+{
+ int i, j, tc, idx = 0;
+ struct mlx5e_priv *priv = netdev_priv(dev);
+
+ switch (stringset) {
+ case ETH_SS_PRIV_FLAGS:
+ break;
+
+ case ETH_SS_TEST:
+ break;
+
+ case ETH_SS_STATS:
+ /* VPORT counters */
+ for (i = 0; i < NUM_VPORT_COUNTERS; i++)
+ strcpy(data + (idx++) * ETH_GSTRING_LEN,
+ vport_strings[i]);
+
+ /* per channel counters */
+ for (i = 0; i < priv->params.num_channels; i++)
+ for (j = 0; j < NUM_RQ_STATS; j++)
+ sprintf(data + (idx++) * ETH_GSTRING_LEN,
+ "rx%d_%s", i, rq_stats_strings[j]);
+
+ for (i = 0; i < priv->params.num_channels; i++)
+ for (tc = 0; tc < priv->num_tc; tc++)
+ for (j = 0; j < NUM_SQ_STATS; j++)
+ sprintf(data +
+ (idx++) * ETH_GSTRING_LEN,
+ "tx%d_%d_%s", i, tc,
+ sq_stats_strings[j]);
+ break;
+ }
+}
+
+static void mlx5e_get_ethtool_stats(struct net_device *dev,
+ struct ethtool_stats *stats, u64 *data)
+{
+ struct mlx5e_priv *priv = netdev_priv(dev);
+ int i, j, tc, idx = 0;
+
+ if (!data)
+ return;
+
+ mutex_lock(&priv->state_lock);
+ if (test_bit(MLX5E_STATE_OPENED, &priv->state))
+ mlx5e_update_stats(priv);
+ mutex_unlock(&priv->state_lock);
+
+ for (i = 0; i < NUM_VPORT_COUNTERS; i++)
+ data[idx++] = ((u64 *)&priv->stats.vport)[i];
+
+ /* per channel counters */
+ for (i = 0; i < priv->params.num_channels; i++)
+ for (j = 0; j < NUM_RQ_STATS; j++)
+ data[idx++] = !test_bit(MLX5E_STATE_OPENED,
+ &priv->state) ? 0 :
+ ((u64 *)&priv->channel[i]->rq.stats)[j];
+
+ for (i = 0; i < priv->params.num_channels; i++)
+ for (tc = 0; tc < priv->num_tc; tc++)
+ for (j = 0; j < NUM_SQ_STATS; j++)
+ data[idx++] = !test_bit(MLX5E_STATE_OPENED,
+ &priv->state) ? 0 :
+ ((u64 *)&priv->channel[i]->sq[tc].stats)[j];
+}
+
+static void mlx5e_get_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *param)
+{
+ struct mlx5e_priv *priv = netdev_priv(dev);
+
+ param->rx_max_pending = 1 << MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE;
+ param->tx_max_pending = 1 << MLX5E_PARAMS_MAXIMUM_LOG_SQ_SIZE;
+ param->rx_pending = 1 << priv->params.log_rq_size;
+ param->tx_pending = 1 << priv->params.log_sq_size;
+}
+
+static int mlx5e_set_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *param)
+{
+ struct mlx5e_priv *priv = netdev_priv(dev);
+ struct mlx5e_params new_params;
+ u16 min_rx_wqes;
+ u8 log_rq_size;
+ u8 log_sq_size;
+ int err = 0;
+
+ if (param->rx_jumbo_pending) {
+ netdev_info(dev, "%s: rx_jumbo_pending not supported\n",
+ __func__);
+ return -EINVAL;
+ }
+ if (param->rx_mini_pending) {
+ netdev_info(dev, "%s: rx_mini_pending not supported\n",
+ __func__);
+ return -EINVAL;
+ }
+ if (param->rx_pending < (1 << MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE)) {
+ netdev_info(dev, "%s: rx_pending (%d) < min (%d)\n",
+ __func__, param->rx_pending,
+ 1 << MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE);
+ return -EINVAL;
+ }
+ if (param->rx_pending > (1 << MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE)) {
+ netdev_info(dev, "%s: rx_pending (%d) > max (%d)\n",
+ __func__, param->rx_pending,
+ 1 << MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE);
+ return -EINVAL;
+ }
+ if (param->tx_pending < (1 << MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE)) {
+ netdev_info(dev, "%s: tx_pending (%d) < min (%d)\n",
+ __func__, param->tx_pending,
+ 1 << MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE);
+ return -EINVAL;
+ }
+ if (param->tx_pending > (1 << MLX5E_PARAMS_MAXIMUM_LOG_SQ_SIZE)) {
+ netdev_info(dev, "%s: tx_pending (%d) > max (%d)\n",
+ __func__, param->tx_pending,
+ 1 << MLX5E_PARAMS_MAXIMUM_LOG_SQ_SIZE);
+ return -EINVAL;
+ }
+
+ log_rq_size = order_base_2(param->rx_pending);
+ log_sq_size = order_base_2(param->tx_pending);
+ min_rx_wqes = min_t(u16, param->rx_pending - 1,
+ MLX5E_PARAMS_DEFAULT_MIN_RX_WQES);
+
+ if (log_rq_size == priv->params.log_rq_size &&
+ log_sq_size == priv->params.log_sq_size &&
+ min_rx_wqes == priv->params.min_rx_wqes)
+ return 0;
+
+ mutex_lock(&priv->state_lock);
+ new_params = priv->params;
+ new_params.log_rq_size = log_rq_size;
+ new_params.log_sq_size = log_sq_size;
+ new_params.min_rx_wqes = min_rx_wqes;
+ err = mlx5e_update_priv_params(priv, &new_params);
+ mutex_unlock(&priv->state_lock);
+
+ return err;
+}
+
+static void mlx5e_get_channels(struct net_device *dev,
+ struct ethtool_channels *ch)
+{
+ struct mlx5e_priv *priv = netdev_priv(dev);
+ int ncv = priv->mdev->priv.eq_table.num_comp_vectors;
+
+ ch->max_combined = ncv;
+ ch->combined_count = priv->params.num_channels;
+}
+
+static int mlx5e_set_channels(struct net_device *dev,
+ struct ethtool_channels *ch)
+{
+ struct mlx5e_priv *priv = netdev_priv(dev);
+ int ncv = priv->mdev->priv.eq_table.num_comp_vectors;
+ unsigned int count = ch->combined_count;
+ struct mlx5e_params new_params;
+ int err = 0;
+
+ if (!count) {
+ netdev_info(dev, "%s: combined_count=0 not supported\n",
+ __func__);
+ return -EINVAL;
+ }
+ if (ch->rx_count || ch->tx_count) {
+ netdev_info(dev, "%s: separate rx/tx count not supported\n",
+ __func__);
+ return -EINVAL;
+ }
+ if (count > ncv) {
+ netdev_info(dev, "%s: count (%d) > max (%d)\n",
+ __func__, count, ncv);
+ return -EINVAL;
+ }
+
+ if (priv->params.num_channels == count)
+ return 0;
+
+ mutex_lock(&priv->state_lock);
+ new_params = priv->params;
+ new_params.num_channels = count;
+ err = mlx5e_update_priv_params(priv, &new_params);
+ mutex_unlock(&priv->state_lock);
+
+ return err;
+}
+
+static int mlx5e_get_coalesce(struct net_device *netdev,
+ struct ethtool_coalesce *coal)
+{
+ struct mlx5e_priv *priv = netdev_priv(netdev);
+
+ coal->rx_coalesce_usecs = priv->params.rx_cq_moderation_usec;
+ coal->rx_max_coalesced_frames = priv->params.rx_cq_moderation_pkts;
+ coal->tx_coalesce_usecs = priv->params.tx_cq_moderation_usec;
+ coal->tx_max_coalesced_frames = priv->params.tx_cq_moderation_pkts;
+
+ return 0;
+}
+
+static int mlx5e_set_coalesce(struct net_device *netdev,
+ struct ethtool_coalesce *coal)
+{
+ struct mlx5e_priv *priv = netdev_priv(netdev);
+ struct mlx5_core_dev *mdev = priv->mdev;
+ struct mlx5e_channel *c;
+ int tc;
+ int i;
+
+ priv->params.tx_cq_moderation_usec = coal->tx_coalesce_usecs;
+ priv->params.tx_cq_moderation_pkts = coal->tx_max_coalesced_frames;
+ priv->params.rx_cq_moderation_usec = coal->rx_coalesce_usecs;
+ priv->params.rx_cq_moderation_pkts = coal->rx_max_coalesced_frames;
+
+ for (i = 0; i < priv->params.num_channels; ++i) {
+ c = priv->channel[i];
+
+ for (tc = 0; tc < c->num_tc; tc++) {
+ mlx5_core_modify_cq_moderation(mdev,
+ &c->sq[tc].cq.mcq,
+ coal->tx_coalesce_usecs,
+ coal->tx_max_coalesced_frames);
+ }
+
+ mlx5_core_modify_cq_moderation(mdev, &c->rq.cq.mcq,
+ coal->rx_coalesce_usecs,
+ coal->rx_max_coalesced_frames);
+ }
+
+ return 0;
+}
+
+static u32 ptys2ethtool_supported_link(u32 eth_proto_cap)
+{
+ int i;
+ u32 supported_modes = 0;
+
+ for (i = 0; i < MLX5E_LINK_MODES_NUMBER; ++i) {
+ if (eth_proto_cap & MLX5E_PROT_MASK(i))
+ supported_modes |= ptys2ethtool_table[i].supported;
+ }
+ return supported_modes;
+}
+
+static u32 ptys2ethtool_adver_link(u32 eth_proto_cap)
+{
+ int i;
+ u32 advertising_modes = 0;
+
+ for (i = 0; i < MLX5E_LINK_MODES_NUMBER; ++i) {
+ if (eth_proto_cap & MLX5E_PROT_MASK(i))
+ advertising_modes |= ptys2ethtool_table[i].advertised;
+ }
+ return advertising_modes;
+}
+
+static u32 ptys2ethtool_supported_port(u32 eth_proto_cap)
+{
+ if (eth_proto_cap & (MLX5E_PROT_MASK(MLX5E_10GBASE_CR)
+ | MLX5E_PROT_MASK(MLX5E_10GBASE_SR)
+ | MLX5E_PROT_MASK(MLX5E_40GBASE_CR4)
+ | MLX5E_PROT_MASK(MLX5E_40GBASE_SR4)
+ | MLX5E_PROT_MASK(MLX5E_100GBASE_SR4)
+ | MLX5E_PROT_MASK(MLX5E_1000BASE_CX_SGMII))) {
+ return SUPPORTED_FIBRE;
+ }
+
+ if (eth_proto_cap & (MLX5E_PROT_MASK(MLX5E_100GBASE_KR4)
+ | MLX5E_PROT_MASK(MLX5E_40GBASE_KR4)
+ | MLX5E_PROT_MASK(MLX5E_10GBASE_KR)
+ | MLX5E_PROT_MASK(MLX5E_10GBASE_KX4)
+ | MLX5E_PROT_MASK(MLX5E_1000BASE_KX))) {
+ return SUPPORTED_Backplane;
+ }
+ return 0;
+}
+
+static void get_speed_duplex(struct net_device *netdev,
+ u32 eth_proto_oper,
+ struct ethtool_cmd *cmd)
+{
+ int i;
+ u32 speed = SPEED_UNKNOWN;
+ u8 duplex = DUPLEX_UNKNOWN;
+
+ if (!netif_carrier_ok(netdev))
+ goto out;
+
+ for (i = 0; i < MLX5E_LINK_MODES_NUMBER; ++i) {
+ if (eth_proto_oper & MLX5E_PROT_MASK(i)) {
+ speed = ptys2ethtool_table[i].speed;
+ duplex = DUPLEX_FULL;
+ break;
+ }
+ }
+out:
+ ethtool_cmd_speed_set(cmd, speed);
+ cmd->duplex = duplex;
+}
+
+static void get_supported(u32 eth_proto_cap, u32 *supported)
+{
+ *supported |= ptys2ethtool_supported_port(eth_proto_cap);
+ *supported |= ptys2ethtool_supported_link(eth_proto_cap);
+ *supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
+}
+
+static void get_advertising(u32 eth_proto_cap, u8 tx_pause,
+ u8 rx_pause, u32 *advertising)
+{
+ *advertising |= ptys2ethtool_adver_link(eth_proto_cap);
+ *advertising |= tx_pause ? ADVERTISED_Pause : 0;
+ *advertising |= (tx_pause ^ rx_pause) ? ADVERTISED_Asym_Pause : 0;
+}
+
+static u8 get_connector_port(u32 eth_proto)
+{
+ if (eth_proto & (MLX5E_PROT_MASK(MLX5E_10GBASE_SR)
+ | MLX5E_PROT_MASK(MLX5E_40GBASE_SR4)
+ | MLX5E_PROT_MASK(MLX5E_100GBASE_SR4)
+ | MLX5E_PROT_MASK(MLX5E_1000BASE_CX_SGMII))) {
+ return PORT_FIBRE;
+ }
+
+ if (eth_proto & (MLX5E_PROT_MASK(MLX5E_40GBASE_CR4)
+ | MLX5E_PROT_MASK(MLX5E_10GBASE_CR)
+ | MLX5E_PROT_MASK(MLX5E_100GBASE_CR4))) {
+ return PORT_DA;
+ }
+
+ if (eth_proto & (MLX5E_PROT_MASK(MLX5E_10GBASE_KX4)
+ | MLX5E_PROT_MASK(MLX5E_10GBASE_KR)
+ | MLX5E_PROT_MASK(MLX5E_40GBASE_KR4)
+ | MLX5E_PROT_MASK(MLX5E_100GBASE_KR4))) {
+ return PORT_NONE;
+ }
+
+ return PORT_OTHER;
+}
+
+static void get_lp_advertising(u32 eth_proto_lp, u32 *lp_advertising)
+{
+ *lp_advertising = ptys2ethtool_adver_link(eth_proto_lp);
+}
+
+static int mlx5e_get_settings(struct net_device *netdev,
+ struct ethtool_cmd *cmd)
+{
+ struct mlx5e_priv *priv = netdev_priv(netdev);
+ struct mlx5_core_dev *mdev = priv->mdev;
+ u32 out[MLX5_ST_SZ_DW(ptys_reg)];
+ u32 eth_proto_cap;
+ u32 eth_proto_admin;
+ u32 eth_proto_lp;
+ u32 eth_proto_oper;
+ int err;
+
+ err = mlx5_query_port_ptys(mdev, out, sizeof(out), MLX5_PTYS_EN);
+
+ if (err) {
+ netdev_err(netdev, "%s: query port ptys failed: %d\n",
+ __func__, err);
+ goto err_query_ptys;
+ }
+
+ eth_proto_cap = MLX5_GET(ptys_reg, out, eth_proto_capability);
+ eth_proto_admin = MLX5_GET(ptys_reg, out, eth_proto_admin);
+ eth_proto_oper = MLX5_GET(ptys_reg, out, eth_proto_oper);
+ eth_proto_lp = MLX5_GET(ptys_reg, out, eth_proto_lp_advertise);
+
+ cmd->supported = 0;
+ cmd->advertising = 0;
+
+ get_supported(eth_proto_cap, &cmd->supported);
+ get_advertising(eth_proto_admin, 0, 0, &cmd->advertising);
+ get_speed_duplex(netdev, eth_proto_oper, cmd);
+
+ eth_proto_oper = eth_proto_oper ? eth_proto_oper : eth_proto_cap;
+
+ cmd->port = get_connector_port(eth_proto_oper);
+ get_lp_advertising(eth_proto_lp, &cmd->lp_advertising);
+
+ cmd->transceiver = XCVR_INTERNAL;
+
+err_query_ptys:
+ return err;
+}
+
+static u32 mlx5e_ethtool2ptys_adver_link(u32 link_modes)
+{
+ u32 i, ptys_modes = 0;
+
+ for (i = 0; i < MLX5E_LINK_MODES_NUMBER; ++i) {
+ if (ptys2ethtool_table[i].advertised & link_modes)
+ ptys_modes |= MLX5E_PROT_MASK(i);
+ }
+
+ return ptys_modes;
+}
+
+static u32 mlx5e_ethtool2ptys_speed_link(u32 speed)
+{
+ u32 i, speed_links = 0;
+
+ for (i = 0; i < MLX5E_LINK_MODES_NUMBER; ++i) {
+ if (ptys2ethtool_table[i].speed == speed)
+ speed_links |= MLX5E_PROT_MASK(i);
+ }
+
+ return speed_links;
+}
+
+static int mlx5e_set_settings(struct net_device *netdev,
+ struct ethtool_cmd *cmd)
+{
+ struct mlx5e_priv *priv = netdev_priv(netdev);
+ struct mlx5_core_dev *mdev = priv->mdev;
+ u32 link_modes;
+ u32 speed;
+ u32 eth_proto_cap, eth_proto_admin;
+ u8 port_status;
+ int err;
+
+ speed = ethtool_cmd_speed(cmd);
+
+ link_modes = cmd->autoneg == AUTONEG_ENABLE ?
+ mlx5e_ethtool2ptys_adver_link(cmd->advertising) :
+ mlx5e_ethtool2ptys_speed_link(speed);
+
+ err = mlx5_query_port_proto_cap(mdev, ð_proto_cap, MLX5_PTYS_EN);
+ if (err) {
+ netdev_err(netdev, "%s: query port eth proto cap failed: %d\n",
+ __func__, err);
+ goto out;
+ }
+
+ link_modes = link_modes & eth_proto_cap;
+ if (!link_modes) {
+ netdev_err(netdev, "%s: Not supported link mode(s) requested",
+ __func__);
+ err = -EINVAL;
+ goto out;
+ }
+
+ err = mlx5_query_port_proto_admin(mdev, ð_proto_admin, MLX5_PTYS_EN);
+ if (err) {
+ netdev_err(netdev, "%s: query port eth proto admin failed: %d\n",
+ __func__, err);
+ goto out;
+ }
+
+ if (link_modes == eth_proto_admin)
+ goto out;
+
+ err = mlx5_set_port_proto(mdev, link_modes, MLX5_PTYS_EN);
+ if (err) {
+ netdev_err(netdev, "%s: set port eth proto admin failed: %d\n",
+ __func__, err);
+ goto out;
+ }
+
+ err = mlx5_query_port_status(mdev, &port_status);
+ if (err)
+ goto out;
+
+ if (port_status == MLX5_PORT_DOWN)
+ return 0;
+
+ err = mlx5_set_port_status(mdev, MLX5_PORT_DOWN);
+ if (err)
+ goto out;
+ err = mlx5_set_port_status(mdev, MLX5_PORT_UP);
+out:
+ return err;
+}
+
+const struct ethtool_ops mlx5e_ethtool_ops = {
+ .get_drvinfo = mlx5e_get_drvinfo,
+ .get_link = ethtool_op_get_link,
+ .get_strings = mlx5e_get_strings,
+ .get_sset_count = mlx5e_get_sset_count,
+ .get_ethtool_stats = mlx5e_get_ethtool_stats,
+ .get_ringparam = mlx5e_get_ringparam,
+ .set_ringparam = mlx5e_set_ringparam,
+ .get_channels = mlx5e_get_channels,
+ .set_channels = mlx5e_set_channels,
+ .get_coalesce = mlx5e_get_coalesce,
+ .set_coalesce = mlx5e_set_coalesce,
+ .get_settings = mlx5e_get_settings,
+ .set_settings = mlx5e_set_settings,
+};
--- /dev/null
+/*
+ * Copyright (c) 2015, Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/mlx5/flow_table.h>
+#include "en.h"
+
+struct mlx5e_rq_param {
+ u32 rqc[MLX5_ST_SZ_DW(rqc)];
+ struct mlx5_wq_param wq;
+};
+
+struct mlx5e_sq_param {
+ u32 sqc[MLX5_ST_SZ_DW(sqc)];
+ struct mlx5_wq_param wq;
+};
+
+struct mlx5e_cq_param {
+ u32 cqc[MLX5_ST_SZ_DW(cqc)];
+ struct mlx5_wq_param wq;
+ u16 eq_ix;
+};
+
+struct mlx5e_channel_param {
+ struct mlx5e_rq_param rq;
+ struct mlx5e_sq_param sq;
+ struct mlx5e_cq_param rx_cq;
+ struct mlx5e_cq_param tx_cq;
+};
+
+static void mlx5e_update_carrier(struct mlx5e_priv *priv)
+{
+ struct mlx5_core_dev *mdev = priv->mdev;
+ u8 port_state;
+
+ port_state = mlx5_query_vport_state(mdev,
+ MLX5_QUERY_VPORT_STATE_IN_OP_MOD_VNIC_VPORT);
+
+ if (port_state == VPORT_STATE_UP)
+ netif_carrier_on(priv->netdev);
+ else
+ netif_carrier_off(priv->netdev);
+}
+
+static void mlx5e_update_carrier_work(struct work_struct *work)
+{
+ struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
+ update_carrier_work);
+
+ mutex_lock(&priv->state_lock);
+ if (test_bit(MLX5E_STATE_OPENED, &priv->state))
+ mlx5e_update_carrier(priv);
+ mutex_unlock(&priv->state_lock);
+}
+
+void mlx5e_update_stats(struct mlx5e_priv *priv)
+{
+ struct mlx5_core_dev *mdev = priv->mdev;
+ struct mlx5e_vport_stats *s = &priv->stats.vport;
+ struct mlx5e_rq_stats *rq_stats;
+ struct mlx5e_sq_stats *sq_stats;
+ u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)];
+ u32 *out;
+ int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out);
+ u64 tx_offload_none;
+ int i, j;
+
+ out = mlx5_vzalloc(outlen);
+ if (!out)
+ return;
+
+ /* Collect firts the SW counters and then HW for consistency */
+ s->tso_packets = 0;
+ s->tso_bytes = 0;
+ s->tx_queue_stopped = 0;
+ s->tx_queue_wake = 0;
+ s->tx_queue_dropped = 0;
+ tx_offload_none = 0;
+ s->lro_packets = 0;
+ s->lro_bytes = 0;
+ s->rx_csum_none = 0;
+ s->rx_wqe_err = 0;
+ for (i = 0; i < priv->params.num_channels; i++) {
+ rq_stats = &priv->channel[i]->rq.stats;
+
+ s->lro_packets += rq_stats->lro_packets;
+ s->lro_bytes += rq_stats->lro_bytes;
+ s->rx_csum_none += rq_stats->csum_none;
+ s->rx_wqe_err += rq_stats->wqe_err;
+
+ for (j = 0; j < priv->num_tc; j++) {
+ sq_stats = &priv->channel[i]->sq[j].stats;
+
+ s->tso_packets += sq_stats->tso_packets;
+ s->tso_bytes += sq_stats->tso_bytes;
+ s->tx_queue_stopped += sq_stats->stopped;
+ s->tx_queue_wake += sq_stats->wake;
+ s->tx_queue_dropped += sq_stats->dropped;
+ tx_offload_none += sq_stats->csum_offload_none;
+ }
+ }
+
+ /* HW counters */
+ memset(in, 0, sizeof(in));
+
+ MLX5_SET(query_vport_counter_in, in, opcode,
+ MLX5_CMD_OP_QUERY_VPORT_COUNTER);
+ MLX5_SET(query_vport_counter_in, in, op_mod, 0);
+ MLX5_SET(query_vport_counter_in, in, other_vport, 0);
+
+ memset(out, 0, outlen);
+
+ if (mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen))
+ goto free_out;
+
+#define MLX5_GET_CTR(p, x) \
+ MLX5_GET64(query_vport_counter_out, p, x)
+
+ s->rx_error_packets =
+ MLX5_GET_CTR(out, received_errors.packets);
+ s->rx_error_bytes =
+ MLX5_GET_CTR(out, received_errors.octets);
+ s->tx_error_packets =
+ MLX5_GET_CTR(out, transmit_errors.packets);
+ s->tx_error_bytes =
+ MLX5_GET_CTR(out, transmit_errors.octets);
+
+ s->rx_unicast_packets =
+ MLX5_GET_CTR(out, received_eth_unicast.packets);
+ s->rx_unicast_bytes =
+ MLX5_GET_CTR(out, received_eth_unicast.octets);
+ s->tx_unicast_packets =
+ MLX5_GET_CTR(out, transmitted_eth_unicast.packets);
+ s->tx_unicast_bytes =
+ MLX5_GET_CTR(out, transmitted_eth_unicast.octets);
+
+ s->rx_multicast_packets =
+ MLX5_GET_CTR(out, received_eth_multicast.packets);
+ s->rx_multicast_bytes =
+ MLX5_GET_CTR(out, received_eth_multicast.octets);
+ s->tx_multicast_packets =
+ MLX5_GET_CTR(out, transmitted_eth_multicast.packets);
+ s->tx_multicast_bytes =
+ MLX5_GET_CTR(out, transmitted_eth_multicast.octets);
+
+ s->rx_broadcast_packets =
+ MLX5_GET_CTR(out, received_eth_broadcast.packets);
+ s->rx_broadcast_bytes =
+ MLX5_GET_CTR(out, received_eth_broadcast.octets);
+ s->tx_broadcast_packets =
+ MLX5_GET_CTR(out, transmitted_eth_broadcast.packets);
+ s->tx_broadcast_bytes =
+ MLX5_GET_CTR(out, transmitted_eth_broadcast.octets);
+
+ s->rx_packets =
+ s->rx_unicast_packets +
+ s->rx_multicast_packets +
+ s->rx_broadcast_packets;
+ s->rx_bytes =
+ s->rx_unicast_bytes +
+ s->rx_multicast_bytes +
+ s->rx_broadcast_bytes;
+ s->tx_packets =
+ s->tx_unicast_packets +
+ s->tx_multicast_packets +
+ s->tx_broadcast_packets;
+ s->tx_bytes =
+ s->tx_unicast_bytes +
+ s->tx_multicast_bytes +
+ s->tx_broadcast_bytes;
+
+ /* Update calculated offload counters */
+ s->tx_csum_offload = s->tx_packets - tx_offload_none;
+ s->rx_csum_good = s->rx_packets - s->rx_csum_none;
+
+free_out:
+ kvfree(out);
+}
+
+static void mlx5e_update_stats_work(struct work_struct *work)
+{
+ struct delayed_work *dwork = to_delayed_work(work);
+ struct mlx5e_priv *priv = container_of(dwork, struct mlx5e_priv,
+ update_stats_work);
+ mutex_lock(&priv->state_lock);
+ if (test_bit(MLX5E_STATE_OPENED, &priv->state)) {
+ mlx5e_update_stats(priv);
+ schedule_delayed_work(dwork,
+ msecs_to_jiffies(
+ MLX5E_UPDATE_STATS_INTERVAL));
+ }
+ mutex_unlock(&priv->state_lock);
+}
+
+static void __mlx5e_async_event(struct mlx5e_priv *priv,
+ enum mlx5_dev_event event)
+{
+ switch (event) {
+ case MLX5_DEV_EVENT_PORT_UP:
+ case MLX5_DEV_EVENT_PORT_DOWN:
+ schedule_work(&priv->update_carrier_work);
+ break;
+
+ default:
+ break;
+ }
+}
+
+static void mlx5e_async_event(struct mlx5_core_dev *mdev, void *vpriv,
+ enum mlx5_dev_event event, unsigned long param)
+{
+ struct mlx5e_priv *priv = vpriv;
+
+ spin_lock(&priv->async_events_spinlock);
+ if (test_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state))
+ __mlx5e_async_event(priv, event);
+ spin_unlock(&priv->async_events_spinlock);
+}
+
+static void mlx5e_enable_async_events(struct mlx5e_priv *priv)
+{
+ set_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state);
+}
+
+static void mlx5e_disable_async_events(struct mlx5e_priv *priv)
+{
+ spin_lock_irq(&priv->async_events_spinlock);
+ clear_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state);
+ spin_unlock_irq(&priv->async_events_spinlock);
+}
+
+static void mlx5e_send_nop(struct mlx5e_sq *sq)
+{
+ struct mlx5_wq_cyc *wq = &sq->wq;
+
+ u16 pi = sq->pc & wq->sz_m1;
+ struct mlx5e_tx_wqe *wqe = mlx5_wq_cyc_get_wqe(wq, pi);
+
+ struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl;
+
+ memset(cseg, 0, sizeof(*cseg));
+
+ cseg->opmod_idx_opcode = cpu_to_be32((sq->pc << 8) | MLX5_OPCODE_NOP);
+ cseg->qpn_ds = cpu_to_be32((sq->sqn << 8) | 0x01);
+ cseg->fm_ce_se = MLX5_WQE_CTRL_CQ_UPDATE;
+
+ sq->skb[pi] = NULL;
+ sq->pc++;
+ mlx5e_tx_notify_hw(sq, wqe);
+}
+
+static int mlx5e_create_rq(struct mlx5e_channel *c,
+ struct mlx5e_rq_param *param,
+ struct mlx5e_rq *rq)
+{
+ struct mlx5e_priv *priv = c->priv;
+ struct mlx5_core_dev *mdev = priv->mdev;
+ void *rqc = param->rqc;
+ void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq);
+ int wq_sz;
+ int err;
+ int i;
+
+ err = mlx5_wq_ll_create(mdev, ¶m->wq, rqc_wq, &rq->wq,
+ &rq->wq_ctrl);
+ if (err)
+ return err;
+
+ rq->wq.db = &rq->wq.db[MLX5_RCV_DBR];
+
+ wq_sz = mlx5_wq_ll_get_size(&rq->wq);
+ rq->skb = kzalloc_node(wq_sz * sizeof(*rq->skb), GFP_KERNEL,
+ cpu_to_node(c->cpu));
+ if (!rq->skb) {
+ err = -ENOMEM;
+ goto err_rq_wq_destroy;
+ }
+
+ rq->wqe_sz = (priv->params.lro_en) ? priv->params.lro_wqe_sz :
+ priv->netdev->mtu + ETH_HLEN + VLAN_HLEN;
+
+ for (i = 0; i < wq_sz; i++) {
+ struct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(&rq->wq, i);
+
+ wqe->data.lkey = c->mkey_be;
+ wqe->data.byte_count = cpu_to_be32(rq->wqe_sz);
+ }
+
+ rq->pdev = c->pdev;
+ rq->netdev = c->netdev;
+ rq->channel = c;
+ rq->ix = c->ix;
+
+ return 0;
+
+err_rq_wq_destroy:
+ mlx5_wq_destroy(&rq->wq_ctrl);
+
+ return err;
+}
+
+static void mlx5e_destroy_rq(struct mlx5e_rq *rq)
+{
+ kfree(rq->skb);
+ mlx5_wq_destroy(&rq->wq_ctrl);
+}
+
+static int mlx5e_enable_rq(struct mlx5e_rq *rq, struct mlx5e_rq_param *param)
+{
+ struct mlx5e_channel *c = rq->channel;
+ struct mlx5e_priv *priv = c->priv;
+ struct mlx5_core_dev *mdev = priv->mdev;
+
+ void *in;
+ void *rqc;
+ void *wq;
+ int inlen;
+ int err;
+
+ inlen = MLX5_ST_SZ_BYTES(create_rq_in) +
+ sizeof(u64) * rq->wq_ctrl.buf.npages;
+ in = mlx5_vzalloc(inlen);
+ if (!in)
+ return -ENOMEM;
+
+ rqc = MLX5_ADDR_OF(create_rq_in, in, ctx);
+ wq = MLX5_ADDR_OF(rqc, rqc, wq);
+
+ memcpy(rqc, param->rqc, sizeof(param->rqc));
+
+ MLX5_SET(rqc, rqc, cqn, c->rq.cq.mcq.cqn);
+ MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST);
+ MLX5_SET(rqc, rqc, flush_in_error_en, 1);
+ MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST);
+ MLX5_SET(wq, wq, log_wq_pg_sz, rq->wq_ctrl.buf.page_shift -
+ PAGE_SHIFT);
+ MLX5_SET64(wq, wq, dbr_addr, rq->wq_ctrl.db.dma);
+
+ mlx5_fill_page_array(&rq->wq_ctrl.buf,
+ (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
+
+ err = mlx5_create_rq(mdev, in, inlen, &rq->rqn);
+
+ kvfree(in);
+
+ return err;
+}
+
+static int mlx5e_modify_rq(struct mlx5e_rq *rq, int curr_state, int next_state)
+{
+ struct mlx5e_channel *c = rq->channel;
+ struct mlx5e_priv *priv = c->priv;
+ struct mlx5_core_dev *mdev = priv->mdev;
+
+ void *in;
+ void *rqc;
+ int inlen;
+ int err;
+
+ inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
+ in = mlx5_vzalloc(inlen);
+ if (!in)
+ return -ENOMEM;
+
+ rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
+
+ MLX5_SET(modify_rq_in, in, rq_state, curr_state);
+ MLX5_SET(rqc, rqc, state, next_state);
+
+ err = mlx5_modify_rq(mdev, rq->rqn, in, inlen);
+
+ kvfree(in);
+
+ return err;
+}
+
+static void mlx5e_disable_rq(struct mlx5e_rq *rq)
+{
+ struct mlx5e_channel *c = rq->channel;
+ struct mlx5e_priv *priv = c->priv;
+ struct mlx5_core_dev *mdev = priv->mdev;
+
+ mlx5_destroy_rq(mdev, rq->rqn);
+}
+
+static int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq)
+{
+ struct mlx5e_channel *c = rq->channel;
+ struct mlx5e_priv *priv = c->priv;
+ struct mlx5_wq_ll *wq = &rq->wq;
+ int i;
+
+ for (i = 0; i < 1000; i++) {
+ if (wq->cur_sz >= priv->params.min_rx_wqes)
+ return 0;
+
+ msleep(20);
+ }
+
+ return -ETIMEDOUT;
+}
+
+static int mlx5e_open_rq(struct mlx5e_channel *c,
+ struct mlx5e_rq_param *param,
+ struct mlx5e_rq *rq)
+{
+ int err;
+
+ err = mlx5e_create_rq(c, param, rq);
+ if (err)
+ return err;
+
+ err = mlx5e_enable_rq(rq, param);
+ if (err)
+ goto err_destroy_rq;
+
+ err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY);
+ if (err)
+ goto err_disable_rq;
+
+ set_bit(MLX5E_RQ_STATE_POST_WQES_ENABLE, &rq->state);
+ mlx5e_send_nop(&c->sq[0]); /* trigger mlx5e_post_rx_wqes() */
+
+ return 0;
+
+err_disable_rq:
+ mlx5e_disable_rq(rq);
+err_destroy_rq:
+ mlx5e_destroy_rq(rq);
+
+ return err;
+}
+
+static void mlx5e_close_rq(struct mlx5e_rq *rq)
+{
+ clear_bit(MLX5E_RQ_STATE_POST_WQES_ENABLE, &rq->state);
+ napi_synchronize(&rq->channel->napi); /* prevent mlx5e_post_rx_wqes */
+
+ mlx5e_modify_rq(rq, MLX5_RQC_STATE_RDY, MLX5_RQC_STATE_ERR);
+ while (!mlx5_wq_ll_is_empty(&rq->wq))
+ msleep(20);
+
+ /* avoid destroying rq before mlx5e_poll_rx_cq() is done with it */
+ napi_synchronize(&rq->channel->napi);
+
+ mlx5e_disable_rq(rq);
+ mlx5e_destroy_rq(rq);
+}
+
+static void mlx5e_free_sq_db(struct mlx5e_sq *sq)
+{
+ kfree(sq->dma_fifo);
+ kfree(sq->skb);
+}
+
+static int mlx5e_alloc_sq_db(struct mlx5e_sq *sq, int numa)
+{
+ int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
+ int df_sz = wq_sz * MLX5_SEND_WQEBB_NUM_DS;
+
+ sq->skb = kzalloc_node(wq_sz * sizeof(*sq->skb), GFP_KERNEL, numa);
+ sq->dma_fifo = kzalloc_node(df_sz * sizeof(*sq->dma_fifo), GFP_KERNEL,
+ numa);
+
+ if (!sq->skb || !sq->dma_fifo) {
+ mlx5e_free_sq_db(sq);
+ return -ENOMEM;
+ }
+
+ sq->dma_fifo_mask = df_sz - 1;
+
+ return 0;
+}
+
+static int mlx5e_create_sq(struct mlx5e_channel *c,
+ int tc,
+ struct mlx5e_sq_param *param,
+ struct mlx5e_sq *sq)
+{
+ struct mlx5e_priv *priv = c->priv;
+ struct mlx5_core_dev *mdev = priv->mdev;
+
+ void *sqc = param->sqc;
+ void *sqc_wq = MLX5_ADDR_OF(sqc, sqc, wq);
+ int err;
+
+ err = mlx5_alloc_map_uar(mdev, &sq->uar);
+ if (err)
+ return err;
+
+ err = mlx5_wq_cyc_create(mdev, ¶m->wq, sqc_wq, &sq->wq,
+ &sq->wq_ctrl);
+ if (err)
+ goto err_unmap_free_uar;
+
+ sq->wq.db = &sq->wq.db[MLX5_SND_DBR];
+ sq->uar_map = sq->uar.map;
+ sq->bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2;
+
+ if (mlx5e_alloc_sq_db(sq, cpu_to_node(c->cpu)))
+ goto err_sq_wq_destroy;
+
+ sq->txq = netdev_get_tx_queue(priv->netdev,
+ c->ix + tc * priv->params.num_channels);
+
+ sq->pdev = c->pdev;
+ sq->mkey_be = c->mkey_be;
+ sq->channel = c;
+ sq->tc = tc;
+
+ return 0;
+
+err_sq_wq_destroy:
+ mlx5_wq_destroy(&sq->wq_ctrl);
+
+err_unmap_free_uar:
+ mlx5_unmap_free_uar(mdev, &sq->uar);
+
+ return err;
+}
+
+static void mlx5e_destroy_sq(struct mlx5e_sq *sq)
+{
+ struct mlx5e_channel *c = sq->channel;
+ struct mlx5e_priv *priv = c->priv;
+
+ mlx5e_free_sq_db(sq);
+ mlx5_wq_destroy(&sq->wq_ctrl);
+ mlx5_unmap_free_uar(priv->mdev, &sq->uar);
+}
+
+static int mlx5e_enable_sq(struct mlx5e_sq *sq, struct mlx5e_sq_param *param)
+{
+ struct mlx5e_channel *c = sq->channel;
+ struct mlx5e_priv *priv = c->priv;
+ struct mlx5_core_dev *mdev = priv->mdev;
+
+ void *in;
+ void *sqc;
+ void *wq;
+ int inlen;
+ int err;
+
+ inlen = MLX5_ST_SZ_BYTES(create_sq_in) +
+ sizeof(u64) * sq->wq_ctrl.buf.npages;
+ in = mlx5_vzalloc(inlen);
+ if (!in)
+ return -ENOMEM;
+
+ sqc = MLX5_ADDR_OF(create_sq_in, in, ctx);
+ wq = MLX5_ADDR_OF(sqc, sqc, wq);
+
+ memcpy(sqc, param->sqc, sizeof(param->sqc));
+
+ MLX5_SET(sqc, sqc, user_index, sq->tc);
+ MLX5_SET(sqc, sqc, tis_num_0, priv->tisn[sq->tc]);
+ MLX5_SET(sqc, sqc, cqn, c->sq[sq->tc].cq.mcq.cqn);
+ MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST);
+ MLX5_SET(sqc, sqc, tis_lst_sz, 1);
+ MLX5_SET(sqc, sqc, flush_in_error_en, 1);
+
+ MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC);
+ MLX5_SET(wq, wq, uar_page, sq->uar.index);
+ MLX5_SET(wq, wq, log_wq_pg_sz, sq->wq_ctrl.buf.page_shift -
+ PAGE_SHIFT);
+ MLX5_SET64(wq, wq, dbr_addr, sq->wq_ctrl.db.dma);
+
+ mlx5_fill_page_array(&sq->wq_ctrl.buf,
+ (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
+
+ err = mlx5_create_sq(mdev, in, inlen, &sq->sqn);
+
+ kvfree(in);
+
+ return err;
+}
+
+static int mlx5e_modify_sq(struct mlx5e_sq *sq, int curr_state, int next_state)
+{
+ struct mlx5e_channel *c = sq->channel;
+ struct mlx5e_priv *priv = c->priv;
+ struct mlx5_core_dev *mdev = priv->mdev;
+
+ void *in;
+ void *sqc;
+ int inlen;
+ int err;
+
+ inlen = MLX5_ST_SZ_BYTES(modify_sq_in);
+ in = mlx5_vzalloc(inlen);
+ if (!in)
+ return -ENOMEM;
+
+ sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx);
+
+ MLX5_SET(modify_sq_in, in, sq_state, curr_state);
+ MLX5_SET(sqc, sqc, state, next_state);
+
+ err = mlx5_modify_sq(mdev, sq->sqn, in, inlen);
+
+ kvfree(in);
+
+ return err;
+}
+
+static void mlx5e_disable_sq(struct mlx5e_sq *sq)
+{
+ struct mlx5e_channel *c = sq->channel;
+ struct mlx5e_priv *priv = c->priv;
+ struct mlx5_core_dev *mdev = priv->mdev;
+
+ mlx5_destroy_sq(mdev, sq->sqn);
+}
+
+static int mlx5e_open_sq(struct mlx5e_channel *c,
+ int tc,
+ struct mlx5e_sq_param *param,
+ struct mlx5e_sq *sq)
+{
+ int err;
+
+ err = mlx5e_create_sq(c, tc, param, sq);
+ if (err)
+ return err;
+
+ err = mlx5e_enable_sq(sq, param);
+ if (err)
+ goto err_destroy_sq;
+
+ err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RST, MLX5_SQC_STATE_RDY);
+ if (err)
+ goto err_disable_sq;
+
+ set_bit(MLX5E_SQ_STATE_WAKE_TXQ_ENABLE, &sq->state);
+ netdev_tx_reset_queue(sq->txq);
+ netif_tx_start_queue(sq->txq);
+
+ return 0;
+
+err_disable_sq:
+ mlx5e_disable_sq(sq);
+err_destroy_sq:
+ mlx5e_destroy_sq(sq);
+
+ return err;
+}
+
+static inline void netif_tx_disable_queue(struct netdev_queue *txq)
+{
+ __netif_tx_lock_bh(txq);
+ netif_tx_stop_queue(txq);
+ __netif_tx_unlock_bh(txq);
+}
+
+static void mlx5e_close_sq(struct mlx5e_sq *sq)
+{
+ clear_bit(MLX5E_SQ_STATE_WAKE_TXQ_ENABLE, &sq->state);
+ napi_synchronize(&sq->channel->napi); /* prevent netif_tx_wake_queue */
+ netif_tx_disable_queue(sq->txq);
+
+ /* ensure hw is notified of all pending wqes */
+ if (mlx5e_sq_has_room_for(sq, 1))
+ mlx5e_send_nop(sq);
+
+ mlx5e_modify_sq(sq, MLX5_SQC_STATE_RDY, MLX5_SQC_STATE_ERR);
+ while (sq->cc != sq->pc) /* wait till sq is empty */
+ msleep(20);
+
+ /* avoid destroying sq before mlx5e_poll_tx_cq() is done with it */
+ napi_synchronize(&sq->channel->napi);
+
+ mlx5e_disable_sq(sq);
+ mlx5e_destroy_sq(sq);
+}
+
+static int mlx5e_create_cq(struct mlx5e_channel *c,
+ struct mlx5e_cq_param *param,
+ struct mlx5e_cq *cq)
+{
+ struct mlx5e_priv *priv = c->priv;
+ struct mlx5_core_dev *mdev = priv->mdev;
+ struct mlx5_core_cq *mcq = &cq->mcq;
+ int eqn_not_used;
+ int irqn;
+ int err;
+ u32 i;
+
+ param->wq.numa = cpu_to_node(c->cpu);
+ param->eq_ix = c->ix;
+
+ err = mlx5_cqwq_create(mdev, ¶m->wq, param->cqc, &cq->wq,
+ &cq->wq_ctrl);
+ if (err)
+ return err;
+
+ mlx5_vector2eqn(mdev, param->eq_ix, &eqn_not_used, &irqn);
+
+ cq->napi = &c->napi;
+
+ mcq->cqe_sz = 64;
+ mcq->set_ci_db = cq->wq_ctrl.db.db;
+ mcq->arm_db = cq->wq_ctrl.db.db + 1;
+ *mcq->set_ci_db = 0;
+ *mcq->arm_db = 0;
+ mcq->vector = param->eq_ix;
+ mcq->comp = mlx5e_completion_event;
+ mcq->event = mlx5e_cq_error_event;
+ mcq->irqn = irqn;
+ mcq->uar = &priv->cq_uar;
+
+ for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) {
+ struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i);
+
+ cqe->op_own = 0xf1;
+ }
+
+ cq->channel = c;
+
+ return 0;
+}
+
+static void mlx5e_destroy_cq(struct mlx5e_cq *cq)
+{
+ mlx5_wq_destroy(&cq->wq_ctrl);
+}
+
+static int mlx5e_enable_cq(struct mlx5e_cq *cq, struct mlx5e_cq_param *param)
+{
+ struct mlx5e_channel *c = cq->channel;
+ struct mlx5e_priv *priv = c->priv;
+ struct mlx5_core_dev *mdev = priv->mdev;
+ struct mlx5_core_cq *mcq = &cq->mcq;
+
+ void *in;
+ void *cqc;
+ int inlen;
+ int irqn_not_used;
+ int eqn;
+ int err;
+
+ inlen = MLX5_ST_SZ_BYTES(create_cq_in) +
+ sizeof(u64) * cq->wq_ctrl.buf.npages;
+ in = mlx5_vzalloc(inlen);
+ if (!in)
+ return -ENOMEM;
+
+ cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context);
+
+ memcpy(cqc, param->cqc, sizeof(param->cqc));
+
+ mlx5_fill_page_array(&cq->wq_ctrl.buf,
+ (__be64 *)MLX5_ADDR_OF(create_cq_in, in, pas));
+
+ mlx5_vector2eqn(mdev, param->eq_ix, &eqn, &irqn_not_used);
+
+ MLX5_SET(cqc, cqc, c_eqn, eqn);
+ MLX5_SET(cqc, cqc, uar_page, mcq->uar->index);
+ MLX5_SET(cqc, cqc, log_page_size, cq->wq_ctrl.buf.page_shift -
+ PAGE_SHIFT);
+ MLX5_SET64(cqc, cqc, dbr_addr, cq->wq_ctrl.db.dma);
+
+ err = mlx5_core_create_cq(mdev, mcq, in, inlen);
+
+ kvfree(in);
+
+ if (err)
+ return err;
+
+ mlx5e_cq_arm(cq);
+
+ return 0;
+}
+
+static void mlx5e_disable_cq(struct mlx5e_cq *cq)
+{
+ struct mlx5e_channel *c = cq->channel;
+ struct mlx5e_priv *priv = c->priv;
+ struct mlx5_core_dev *mdev = priv->mdev;
+
+ mlx5_core_destroy_cq(mdev, &cq->mcq);
+}
+
+static int mlx5e_open_cq(struct mlx5e_channel *c,
+ struct mlx5e_cq_param *param,
+ struct mlx5e_cq *cq,
+ u16 moderation_usecs,
+ u16 moderation_frames)
+{
+ int err;
+ struct mlx5e_priv *priv = c->priv;
+ struct mlx5_core_dev *mdev = priv->mdev;
+
+ err = mlx5e_create_cq(c, param, cq);
+ if (err)
+ return err;
+
+ err = mlx5e_enable_cq(cq, param);
+ if (err)
+ goto err_destroy_cq;
+
+ err = mlx5_core_modify_cq_moderation(mdev, &cq->mcq,
+ moderation_usecs,
+ moderation_frames);
+ if (err)
+ goto err_destroy_cq;
+
+ return 0;
+
+err_destroy_cq:
+ mlx5e_destroy_cq(cq);
+
+ return err;
+}
+
+static void mlx5e_close_cq(struct mlx5e_cq *cq)
+{
+ mlx5e_disable_cq(cq);
+ mlx5e_destroy_cq(cq);
+}
+
+static int mlx5e_get_cpu(struct mlx5e_priv *priv, int ix)
+{
+ return cpumask_first(priv->mdev->priv.irq_info[ix].mask);
+}
+
+static int mlx5e_open_tx_cqs(struct mlx5e_channel *c,
+ struct mlx5e_channel_param *cparam)
+{
+ struct mlx5e_priv *priv = c->priv;
+ int err;
+ int tc;
+
+ for (tc = 0; tc < c->num_tc; tc++) {
+ err = mlx5e_open_cq(c, &cparam->tx_cq, &c->sq[tc].cq,
+ priv->params.tx_cq_moderation_usec,
+ priv->params.tx_cq_moderation_pkts);
+ if (err)
+ goto err_close_tx_cqs;
+
+ c->sq[tc].cq.sqrq = &c->sq[tc];
+ }
+
+ return 0;
+
+err_close_tx_cqs:
+ for (tc--; tc >= 0; tc--)
+ mlx5e_close_cq(&c->sq[tc].cq);
+
+ return err;
+}
+
+static void mlx5e_close_tx_cqs(struct mlx5e_channel *c)
+{
+ int tc;
+
+ for (tc = 0; tc < c->num_tc; tc++)
+ mlx5e_close_cq(&c->sq[tc].cq);
+}
+
+static int mlx5e_open_sqs(struct mlx5e_channel *c,
+ struct mlx5e_channel_param *cparam)
+{
+ int err;
+ int tc;
+
+ for (tc = 0; tc < c->num_tc; tc++) {
+ err = mlx5e_open_sq(c, tc, &cparam->sq, &c->sq[tc]);
+ if (err)
+ goto err_close_sqs;
+ }
+
+ return 0;
+
+err_close_sqs:
+ for (tc--; tc >= 0; tc--)
+ mlx5e_close_sq(&c->sq[tc]);
+
+ return err;
+}
+
+static void mlx5e_close_sqs(struct mlx5e_channel *c)
+{
+ int tc;
+
+ for (tc = 0; tc < c->num_tc; tc++)
+ mlx5e_close_sq(&c->sq[tc]);
+}
+
+static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
+ struct mlx5e_channel_param *cparam,
+ struct mlx5e_channel **cp)
+{
+ struct net_device *netdev = priv->netdev;
+ int cpu = mlx5e_get_cpu(priv, ix);
+ struct mlx5e_channel *c;
+ int err;
+
+ c = kzalloc_node(sizeof(*c), GFP_KERNEL, cpu_to_node(cpu));
+ if (!c)
+ return -ENOMEM;
+
+ c->priv = priv;
+ c->ix = ix;
+ c->cpu = cpu;
+ c->pdev = &priv->mdev->pdev->dev;
+ c->netdev = priv->netdev;
+ c->mkey_be = cpu_to_be32(priv->mr.key);
+ c->num_tc = priv->num_tc;
+
+ netif_napi_add(netdev, &c->napi, mlx5e_napi_poll, 64);
+
+ err = mlx5e_open_tx_cqs(c, cparam);
+ if (err)
+ goto err_napi_del;
+
+ err = mlx5e_open_cq(c, &cparam->rx_cq, &c->rq.cq,
+ priv->params.rx_cq_moderation_usec,
+ priv->params.rx_cq_moderation_pkts);
+ if (err)
+ goto err_close_tx_cqs;
+ c->rq.cq.sqrq = &c->rq;
+
+ napi_enable(&c->napi);
+
+ err = mlx5e_open_sqs(c, cparam);
+ if (err)
+ goto err_disable_napi;
+
+ err = mlx5e_open_rq(c, &cparam->rq, &c->rq);
+ if (err)
+ goto err_close_sqs;
+
+ netif_set_xps_queue(netdev, get_cpu_mask(c->cpu), ix);
+ *cp = c;
+
+ return 0;
+
+err_close_sqs:
+ mlx5e_close_sqs(c);
+
+err_disable_napi:
+ napi_disable(&c->napi);
+ mlx5e_close_cq(&c->rq.cq);
+
+err_close_tx_cqs:
+ mlx5e_close_tx_cqs(c);
+
+err_napi_del:
+ netif_napi_del(&c->napi);
+ kfree(c);
+
+ return err;
+}
+
+static void mlx5e_close_channel(struct mlx5e_channel *c)
+{
+ mlx5e_close_rq(&c->rq);
+ mlx5e_close_sqs(c);
+ napi_disable(&c->napi);
+ mlx5e_close_cq(&c->rq.cq);
+ mlx5e_close_tx_cqs(c);
+ netif_napi_del(&c->napi);
+ kfree(c);
+}
+
+static void mlx5e_build_rq_param(struct mlx5e_priv *priv,
+ struct mlx5e_rq_param *param)
+{
+ void *rqc = param->rqc;
+ void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
+
+ MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST);
+ MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN);
+ MLX5_SET(wq, wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe)));
+ MLX5_SET(wq, wq, log_wq_sz, priv->params.log_rq_size);
+ MLX5_SET(wq, wq, pd, priv->pdn);
+
+ param->wq.numa = dev_to_node(&priv->mdev->pdev->dev);
+ param->wq.linear = 1;
+}
+
+static void mlx5e_build_sq_param(struct mlx5e_priv *priv,
+ struct mlx5e_sq_param *param)
+{
+ void *sqc = param->sqc;
+ void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
+
+ MLX5_SET(wq, wq, log_wq_sz, priv->params.log_sq_size);
+ MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB));
+ MLX5_SET(wq, wq, pd, priv->pdn);
+
+ param->wq.numa = dev_to_node(&priv->mdev->pdev->dev);
+}
+
+static void mlx5e_build_common_cq_param(struct mlx5e_priv *priv,
+ struct mlx5e_cq_param *param)
+{
+ void *cqc = param->cqc;
+
+ MLX5_SET(cqc, cqc, uar_page, priv->cq_uar.index);
+}
+
+static void mlx5e_build_rx_cq_param(struct mlx5e_priv *priv,
+ struct mlx5e_cq_param *param)
+{
+ void *cqc = param->cqc;
+
+ MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_rq_size);
+
+ mlx5e_build_common_cq_param(priv, param);
+}
+
+static void mlx5e_build_tx_cq_param(struct mlx5e_priv *priv,
+ struct mlx5e_cq_param *param)
+{
+ void *cqc = param->cqc;
+
+ MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_sq_size);
+
+ mlx5e_build_common_cq_param(priv, param);
+}
+
+static void mlx5e_build_channel_param(struct mlx5e_priv *priv,
+ struct mlx5e_channel_param *cparam)
+{
+ memset(cparam, 0, sizeof(*cparam));
+
+ mlx5e_build_rq_param(priv, &cparam->rq);
+ mlx5e_build_sq_param(priv, &cparam->sq);
+ mlx5e_build_rx_cq_param(priv, &cparam->rx_cq);
+ mlx5e_build_tx_cq_param(priv, &cparam->tx_cq);
+}
+
+static int mlx5e_open_channels(struct mlx5e_priv *priv)
+{
+ struct mlx5e_channel_param cparam;
+ int err;
+ int i;
+ int j;
+
+ priv->channel = kcalloc(priv->params.num_channels,
+ sizeof(struct mlx5e_channel *), GFP_KERNEL);
+ if (!priv->channel)
+ return -ENOMEM;
+
+ mlx5e_build_channel_param(priv, &cparam);
+ for (i = 0; i < priv->params.num_channels; i++) {
+ err = mlx5e_open_channel(priv, i, &cparam, &priv->channel[i]);
+ if (err)
+ goto err_close_channels;
+ }
+
+ for (j = 0; j < priv->params.num_channels; j++) {
+ err = mlx5e_wait_for_min_rx_wqes(&priv->channel[j]->rq);
+ if (err)
+ goto err_close_channels;
+ }
+
+ return 0;
+
+err_close_channels:
+ for (i--; i >= 0; i--)
+ mlx5e_close_channel(priv->channel[i]);
+
+ kfree(priv->channel);
+
+ return err;
+}
+
+static void mlx5e_close_channels(struct mlx5e_priv *priv)
+{
+ int i;
+
+ for (i = 0; i < priv->params.num_channels; i++)
+ mlx5e_close_channel(priv->channel[i]);
+
+ kfree(priv->channel);
+}
+
+static int mlx5e_open_tis(struct mlx5e_priv *priv, int tc)
+{
+ struct mlx5_core_dev *mdev = priv->mdev;
+ u32 in[MLX5_ST_SZ_DW(create_tis_in)];
+ void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx);
+
+ memset(in, 0, sizeof(in));
+
+ MLX5_SET(tisc, tisc, prio, tc);
+
+ return mlx5_create_tis(mdev, in, sizeof(in), &priv->tisn[tc]);
+}
+
+static void mlx5e_close_tis(struct mlx5e_priv *priv, int tc)
+{
+ mlx5_destroy_tis(priv->mdev, priv->tisn[tc]);
+}
+
+static int mlx5e_open_tises(struct mlx5e_priv *priv)
+{
+ int num_tc = priv->num_tc;
+ int err;
+ int tc;
+
+ for (tc = 0; tc < num_tc; tc++) {
+ err = mlx5e_open_tis(priv, tc);
+ if (err)
+ goto err_close_tises;
+ }
+
+ return 0;
+
+err_close_tises:
+ for (tc--; tc >= 0; tc--)
+ mlx5e_close_tis(priv, tc);
+
+ return err;
+}
+
+static void mlx5e_close_tises(struct mlx5e_priv *priv)
+{
+ int num_tc = priv->num_tc;
+ int tc;
+
+ for (tc = 0; tc < num_tc; tc++)
+ mlx5e_close_tis(priv, tc);
+}
+
+static int mlx5e_open_rqt(struct mlx5e_priv *priv)
+{
+ struct mlx5_core_dev *mdev = priv->mdev;
+ u32 *in;
+ u32 out[MLX5_ST_SZ_DW(create_rqt_out)];
+ void *rqtc;
+ int inlen;
+ int err;
+ int sz;
+ int i;
+
+ sz = 1 << priv->params.rx_hash_log_tbl_sz;
+
+ inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz;
+ in = mlx5_vzalloc(inlen);
+ if (!in)
+ return -ENOMEM;
+
+ rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context);
+
+ MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
+ MLX5_SET(rqtc, rqtc, rqt_max_size, sz);
+
+ for (i = 0; i < sz; i++) {
+ int ix = i % priv->params.num_channels;
+
+ MLX5_SET(rqtc, rqtc, rq_num[i], priv->channel[ix]->rq.rqn);
+ }
+
+ MLX5_SET(create_rqt_in, in, opcode, MLX5_CMD_OP_CREATE_RQT);
+
+ memset(out, 0, sizeof(out));
+ err = mlx5_cmd_exec_check_status(mdev, in, inlen, out, sizeof(out));
+ if (!err)
+ priv->rqtn = MLX5_GET(create_rqt_out, out, rqtn);
+
+ kvfree(in);
+
+ return err;
+}
+
+static void mlx5e_close_rqt(struct mlx5e_priv *priv)
+{
+ u32 in[MLX5_ST_SZ_DW(destroy_rqt_in)];
+ u32 out[MLX5_ST_SZ_DW(destroy_rqt_out)];
+
+ memset(in, 0, sizeof(in));
+
+ MLX5_SET(destroy_rqt_in, in, opcode, MLX5_CMD_OP_DESTROY_RQT);
+ MLX5_SET(destroy_rqt_in, in, rqtn, priv->rqtn);
+
+ mlx5_cmd_exec_check_status(priv->mdev, in, sizeof(in), out,
+ sizeof(out));
+}
+
+static void mlx5e_build_tir_ctx(struct mlx5e_priv *priv, u32 *tirc, int tt)
+{
+ void *hfso = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer);
+
+#define ROUGH_MAX_L2_L3_HDR_SZ 256
+
+#define MLX5_HASH_IP (MLX5_HASH_FIELD_SEL_SRC_IP |\
+ MLX5_HASH_FIELD_SEL_DST_IP)
+
+#define MLX5_HASH_ALL (MLX5_HASH_FIELD_SEL_SRC_IP |\
+ MLX5_HASH_FIELD_SEL_DST_IP |\
+ MLX5_HASH_FIELD_SEL_L4_SPORT |\
+ MLX5_HASH_FIELD_SEL_L4_DPORT)
+
+ if (priv->params.lro_en) {
+ MLX5_SET(tirc, tirc, lro_enable_mask,
+ MLX5_TIRC_LRO_ENABLE_MASK_IPV4_LRO |
+ MLX5_TIRC_LRO_ENABLE_MASK_IPV6_LRO);
+ MLX5_SET(tirc, tirc, lro_max_ip_payload_size,
+ (priv->params.lro_wqe_sz -
+ ROUGH_MAX_L2_L3_HDR_SZ) >> 8);
+ MLX5_SET(tirc, tirc, lro_timeout_period_usecs,
+ MLX5_CAP_ETH(priv->mdev,
+ lro_timer_supported_periods[3]));
+ }
+
+ switch (tt) {
+ case MLX5E_TT_ANY:
+ MLX5_SET(tirc, tirc, disp_type,
+ MLX5_TIRC_DISP_TYPE_DIRECT);
+ MLX5_SET(tirc, tirc, inline_rqn,
+ priv->channel[0]->rq.rqn);
+ break;
+ default:
+ MLX5_SET(tirc, tirc, disp_type,
+ MLX5_TIRC_DISP_TYPE_INDIRECT);
+ MLX5_SET(tirc, tirc, indirect_table,
+ priv->rqtn);
+ MLX5_SET(tirc, tirc, rx_hash_fn,
+ MLX5_TIRC_RX_HASH_FN_HASH_TOEPLITZ);
+ MLX5_SET(tirc, tirc, rx_hash_symmetric, 1);
+ netdev_rss_key_fill(MLX5_ADDR_OF(tirc, tirc,
+ rx_hash_toeplitz_key),
+ MLX5_FLD_SZ_BYTES(tirc,
+ rx_hash_toeplitz_key));
+ break;
+ }
+
+ switch (tt) {
+ case MLX5E_TT_IPV4_TCP:
+ MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
+ MLX5_L3_PROT_TYPE_IPV4);
+ MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
+ MLX5_L4_PROT_TYPE_TCP);
+ MLX5_SET(rx_hash_field_select, hfso, selected_fields,
+ MLX5_HASH_ALL);
+ break;
+
+ case MLX5E_TT_IPV6_TCP:
+ MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
+ MLX5_L3_PROT_TYPE_IPV6);
+ MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
+ MLX5_L4_PROT_TYPE_TCP);
+ MLX5_SET(rx_hash_field_select, hfso, selected_fields,
+ MLX5_HASH_ALL);
+ break;
+
+ case MLX5E_TT_IPV4_UDP:
+ MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
+ MLX5_L3_PROT_TYPE_IPV4);
+ MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
+ MLX5_L4_PROT_TYPE_UDP);
+ MLX5_SET(rx_hash_field_select, hfso, selected_fields,
+ MLX5_HASH_ALL);
+ break;
+
+ case MLX5E_TT_IPV6_UDP:
+ MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
+ MLX5_L3_PROT_TYPE_IPV6);
+ MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
+ MLX5_L4_PROT_TYPE_UDP);
+ MLX5_SET(rx_hash_field_select, hfso, selected_fields,
+ MLX5_HASH_ALL);
+ break;
+
+ case MLX5E_TT_IPV4:
+ MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
+ MLX5_L3_PROT_TYPE_IPV4);
+ MLX5_SET(rx_hash_field_select, hfso, selected_fields,
+ MLX5_HASH_IP);
+ break;
+
+ case MLX5E_TT_IPV6:
+ MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
+ MLX5_L3_PROT_TYPE_IPV6);
+ MLX5_SET(rx_hash_field_select, hfso, selected_fields,
+ MLX5_HASH_IP);
+ break;
+ }
+}
+
+static int mlx5e_open_tir(struct mlx5e_priv *priv, int tt)
+{
+ struct mlx5_core_dev *mdev = priv->mdev;
+ u32 *in;
+ void *tirc;
+ int inlen;
+ int err;
+
+ inlen = MLX5_ST_SZ_BYTES(create_tir_in);
+ in = mlx5_vzalloc(inlen);
+ if (!in)
+ return -ENOMEM;
+
+ tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
+
+ mlx5e_build_tir_ctx(priv, tirc, tt);
+
+ err = mlx5_create_tir(mdev, in, inlen, &priv->tirn[tt]);
+
+ kvfree(in);
+
+ return err;
+}
+
+static void mlx5e_close_tir(struct mlx5e_priv *priv, int tt)
+{
+ mlx5_destroy_tir(priv->mdev, priv->tirn[tt]);
+}
+
+static int mlx5e_open_tirs(struct mlx5e_priv *priv)
+{
+ int err;
+ int i;
+
+ for (i = 0; i < MLX5E_NUM_TT; i++) {
+ err = mlx5e_open_tir(priv, i);
+ if (err)
+ goto err_close_tirs;
+ }
+
+ return 0;
+
+err_close_tirs:
+ for (i--; i >= 0; i--)
+ mlx5e_close_tir(priv, i);
+
+ return err;
+}
+
+static void mlx5e_close_tirs(struct mlx5e_priv *priv)
+{
+ int i;
+
+ for (i = 0; i < MLX5E_NUM_TT; i++)
+ mlx5e_close_tir(priv, i);
+}
+
+int mlx5e_open_locked(struct net_device *netdev)
+{
+ struct mlx5e_priv *priv = netdev_priv(netdev);
+ struct mlx5_core_dev *mdev = priv->mdev;
+ int actual_mtu;
+ int num_txqs;
+ int err;
+
+ num_txqs = roundup_pow_of_two(priv->params.num_channels) *
+ priv->params.num_tc;
+ netif_set_real_num_tx_queues(netdev, num_txqs);
+ netif_set_real_num_rx_queues(netdev, priv->params.num_channels);
+
+ err = mlx5_set_port_mtu(mdev, netdev->mtu);
+ if (err) {
+ netdev_err(netdev, "%s: mlx5_set_port_mtu failed %d\n",
+ __func__, err);
+ return err;
+ }
+
+ err = mlx5_query_port_oper_mtu(mdev, &actual_mtu);
+ if (err) {
+ netdev_err(netdev, "%s: mlx5_query_port_oper_mtu failed %d\n",
+ __func__, err);
+ return err;
+ }
+
+ if (actual_mtu != netdev->mtu)
+ netdev_warn(netdev, "%s: Failed to set MTU to %d\n",
+ __func__, netdev->mtu);
+
+ netdev->mtu = actual_mtu;
+
+ err = mlx5e_open_tises(priv);
+ if (err) {
+ netdev_err(netdev, "%s: mlx5e_open_tises failed, %d\n",
+ __func__, err);
+ return err;
+ }
+
+ err = mlx5e_open_channels(priv);
+ if (err) {
+ netdev_err(netdev, "%s: mlx5e_open_channels failed, %d\n",
+ __func__, err);
+ goto err_close_tises;
+ }
+
+ err = mlx5e_open_rqt(priv);
+ if (err) {
+ netdev_err(netdev, "%s: mlx5e_open_rqt failed, %d\n",
+ __func__, err);
+ goto err_close_channels;
+ }
+
+ err = mlx5e_open_tirs(priv);
+ if (err) {
+ netdev_err(netdev, "%s: mlx5e_open_tir failed, %d\n",
+ __func__, err);
+ goto err_close_rqls;
+ }
+
+ err = mlx5e_open_flow_table(priv);
+ if (err) {
+ netdev_err(netdev, "%s: mlx5e_open_flow_table failed, %d\n",
+ __func__, err);
+ goto err_close_tirs;
+ }
+
+ err = mlx5e_add_all_vlan_rules(priv);
+ if (err) {
+ netdev_err(netdev, "%s: mlx5e_add_all_vlan_rules failed, %d\n",
+ __func__, err);
+ goto err_close_flow_table;
+ }
+
+ mlx5e_init_eth_addr(priv);
+
+ set_bit(MLX5E_STATE_OPENED, &priv->state);
+
+ mlx5e_update_carrier(priv);
+ mlx5e_set_rx_mode_core(priv);
+
+ schedule_delayed_work(&priv->update_stats_work, 0);
+ return 0;
+
+err_close_flow_table:
+ mlx5e_close_flow_table(priv);
+
+err_close_tirs:
+ mlx5e_close_tirs(priv);
+
+err_close_rqls:
+ mlx5e_close_rqt(priv);
+
+err_close_channels:
+ mlx5e_close_channels(priv);
+
+err_close_tises:
+ mlx5e_close_tises(priv);
+
+ return err;
+}
+
+static int mlx5e_open(struct net_device *netdev)
+{
+ struct mlx5e_priv *priv = netdev_priv(netdev);
+ int err;
+
+ mutex_lock(&priv->state_lock);
+ err = mlx5e_open_locked(netdev);
+ mutex_unlock(&priv->state_lock);
+
+ return err;
+}
+
+int mlx5e_close_locked(struct net_device *netdev)
+{
+ struct mlx5e_priv *priv = netdev_priv(netdev);
+
+ clear_bit(MLX5E_STATE_OPENED, &priv->state);
+
+ mlx5e_set_rx_mode_core(priv);
+ mlx5e_del_all_vlan_rules(priv);
+ netif_carrier_off(priv->netdev);
+ mlx5e_close_flow_table(priv);
+ mlx5e_close_tirs(priv);
+ mlx5e_close_rqt(priv);
+ mlx5e_close_channels(priv);
+ mlx5e_close_tises(priv);
+
+ return 0;
+}
+
+static int mlx5e_close(struct net_device *netdev)
+{
+ struct mlx5e_priv *priv = netdev_priv(netdev);
+ int err;
+
+ mutex_lock(&priv->state_lock);
+ err = mlx5e_close_locked(netdev);
+ mutex_unlock(&priv->state_lock);
+
+ return err;
+}
+
+int mlx5e_update_priv_params(struct mlx5e_priv *priv,
+ struct mlx5e_params *new_params)
+{
+ int err = 0;
+ int was_opened;
+
+ WARN_ON(!mutex_is_locked(&priv->state_lock));
+
+ was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
+ if (was_opened)
+ mlx5e_close_locked(priv->netdev);
+
+ priv->params = *new_params;
+
+ if (was_opened)
+ err = mlx5e_open_locked(priv->netdev);
+
+ return err;
+}
+
+static struct rtnl_link_stats64 *
+mlx5e_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
+{
+ struct mlx5e_priv *priv = netdev_priv(dev);
+ struct mlx5e_vport_stats *vstats = &priv->stats.vport;
+
+ stats->rx_packets = vstats->rx_packets;
+ stats->rx_bytes = vstats->rx_bytes;
+ stats->tx_packets = vstats->tx_packets;
+ stats->tx_bytes = vstats->tx_bytes;
+ stats->multicast = vstats->rx_multicast_packets +
+ vstats->tx_multicast_packets;
+ stats->tx_errors = vstats->tx_error_packets;
+ stats->rx_errors = vstats->rx_error_packets;
+ stats->tx_dropped = vstats->tx_queue_dropped;
+ stats->rx_crc_errors = 0;
+ stats->rx_length_errors = 0;
+
+ return stats;
+}
+
+static void mlx5e_set_rx_mode(struct net_device *dev)
+{
+ struct mlx5e_priv *priv = netdev_priv(dev);
+
+ schedule_work(&priv->set_rx_mode_work);
+}
+
+static int mlx5e_set_mac(struct net_device *netdev, void *addr)
+{
+ struct mlx5e_priv *priv = netdev_priv(netdev);
+ struct sockaddr *saddr = addr;
+
+ if (!is_valid_ether_addr(saddr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ netif_addr_lock_bh(netdev);
+ ether_addr_copy(netdev->dev_addr, saddr->sa_data);
+ netif_addr_unlock_bh(netdev);
+
+ schedule_work(&priv->set_rx_mode_work);
+
+ return 0;
+}
+
+static int mlx5e_set_features(struct net_device *netdev,
+ netdev_features_t features)
+{
+ struct mlx5e_priv *priv = netdev_priv(netdev);
+ netdev_features_t changes = features ^ netdev->features;
+ struct mlx5e_params new_params;
+ bool update_params = false;
+
+ mutex_lock(&priv->state_lock);
+ new_params = priv->params;
+
+ if (changes & NETIF_F_LRO) {
+ new_params.lro_en = !!(features & NETIF_F_LRO);
+ update_params = true;
+ }
+
+ if (update_params)
+ mlx5e_update_priv_params(priv, &new_params);
+
+ if (changes & NETIF_F_HW_VLAN_CTAG_FILTER) {
+ if (features & NETIF_F_HW_VLAN_CTAG_FILTER)
+ mlx5e_enable_vlan_filter(priv);
+ else
+ mlx5e_disable_vlan_filter(priv);
+ }
+
+ mutex_unlock(&priv->state_lock);
+
+ return 0;
+}
+
+static int mlx5e_change_mtu(struct net_device *netdev, int new_mtu)
+{
+ struct mlx5e_priv *priv = netdev_priv(netdev);
+ struct mlx5_core_dev *mdev = priv->mdev;
+ int max_mtu;
+ int err = 0;
+
+ err = mlx5_query_port_max_mtu(mdev, &max_mtu);
+ if (err)
+ return err;
+
+ if (new_mtu > max_mtu || new_mtu < MLX5E_PARAMS_MIN_MTU) {
+ netdev_err(netdev, "%s: Bad MTU size, mtu must be [%d-%d]\n",
+ __func__, MLX5E_PARAMS_MIN_MTU, max_mtu);
+ return -EINVAL;
+ }
+
+ mutex_lock(&priv->state_lock);
+ netdev->mtu = new_mtu;
+ err = mlx5e_update_priv_params(priv, &priv->params);
+ mutex_unlock(&priv->state_lock);
+
+ return err;
+}
+
+static struct net_device_ops mlx5e_netdev_ops = {
+ .ndo_open = mlx5e_open,
+ .ndo_stop = mlx5e_close,
+ .ndo_start_xmit = mlx5e_xmit,
+ .ndo_get_stats64 = mlx5e_get_stats,
+ .ndo_set_rx_mode = mlx5e_set_rx_mode,
+ .ndo_set_mac_address = mlx5e_set_mac,
+ .ndo_vlan_rx_add_vid = mlx5e_vlan_rx_add_vid,
+ .ndo_vlan_rx_kill_vid = mlx5e_vlan_rx_kill_vid,
+ .ndo_set_features = mlx5e_set_features,
+ .ndo_change_mtu = mlx5e_change_mtu,
+};
+
+static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev)
+{
+ if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
+ return -ENOTSUPP;
+ if (!MLX5_CAP_GEN(mdev, eth_net_offloads) ||
+ !MLX5_CAP_GEN(mdev, nic_flow_table) ||
+ !MLX5_CAP_ETH(mdev, csum_cap) ||
+ !MLX5_CAP_ETH(mdev, max_lso_cap) ||
+ !MLX5_CAP_ETH(mdev, vlan_cap) ||
+ !MLX5_CAP_ETH(mdev, rss_ind_tbl_cap)) {
+ mlx5_core_warn(mdev,
+ "Not creating net device, some required device capabilities are missing\n");
+ return -ENOTSUPP;
+ }
+ return 0;
+}
+
+static void mlx5e_build_netdev_priv(struct mlx5_core_dev *mdev,
+ struct net_device *netdev,
+ int num_comp_vectors)
+{
+ struct mlx5e_priv *priv = netdev_priv(netdev);
+
+ priv->params.log_sq_size =
+ MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE;
+ priv->params.log_rq_size =
+ MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE;
+ priv->params.rx_cq_moderation_usec =
+ MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC;
+ priv->params.rx_cq_moderation_pkts =
+ MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS;
+ priv->params.tx_cq_moderation_usec =
+ MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC;
+ priv->params.tx_cq_moderation_pkts =
+ MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS;
+ priv->params.min_rx_wqes =
+ MLX5E_PARAMS_DEFAULT_MIN_RX_WQES;
+ priv->params.rx_hash_log_tbl_sz =
+ (order_base_2(num_comp_vectors) >
+ MLX5E_PARAMS_DEFAULT_RX_HASH_LOG_TBL_SZ) ?
+ order_base_2(num_comp_vectors) :
+ MLX5E_PARAMS_DEFAULT_RX_HASH_LOG_TBL_SZ;
+ priv->params.num_tc = 1;
+ priv->params.default_vlan_prio = 0;
+
+ priv->params.lro_en = false && !!MLX5_CAP_ETH(priv->mdev, lro_cap);
+ priv->params.lro_wqe_sz =
+ MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ;
+
+ priv->mdev = mdev;
+ priv->netdev = netdev;
+ priv->params.num_channels = num_comp_vectors;
+ priv->order_base_2_num_channels = order_base_2(num_comp_vectors);
+ priv->queue_mapping_channel_mask =
+ roundup_pow_of_two(num_comp_vectors) - 1;
+ priv->num_tc = priv->params.num_tc;
+ priv->default_vlan_prio = priv->params.default_vlan_prio;
+
+ spin_lock_init(&priv->async_events_spinlock);
+ mutex_init(&priv->state_lock);
+
+ INIT_WORK(&priv->update_carrier_work, mlx5e_update_carrier_work);
+ INIT_WORK(&priv->set_rx_mode_work, mlx5e_set_rx_mode_work);
+ INIT_DELAYED_WORK(&priv->update_stats_work, mlx5e_update_stats_work);
+}
+
+static void mlx5e_set_netdev_dev_addr(struct net_device *netdev)
+{
+ struct mlx5e_priv *priv = netdev_priv(netdev);
+
+ mlx5_query_vport_mac_address(priv->mdev, netdev->dev_addr);
+}
+
+static void mlx5e_build_netdev(struct net_device *netdev)
+{
+ struct mlx5e_priv *priv = netdev_priv(netdev);
+ struct mlx5_core_dev *mdev = priv->mdev;
+
+ SET_NETDEV_DEV(netdev, &mdev->pdev->dev);
+
+ if (priv->num_tc > 1) {
+ mlx5e_netdev_ops.ndo_select_queue = mlx5e_select_queue;
+ mlx5e_netdev_ops.ndo_start_xmit = mlx5e_xmit_multi_tc;
+ }
+
+ netdev->netdev_ops = &mlx5e_netdev_ops;
+ netdev->watchdog_timeo = 15 * HZ;
+
+ netdev->ethtool_ops = &mlx5e_ethtool_ops;
+
+ netdev->vlan_features |= NETIF_F_IP_CSUM;
+ netdev->vlan_features |= NETIF_F_IPV6_CSUM;
+ netdev->vlan_features |= NETIF_F_GRO;
+ netdev->vlan_features |= NETIF_F_TSO;
+ netdev->vlan_features |= NETIF_F_TSO6;
+ netdev->vlan_features |= NETIF_F_RXCSUM;
+ netdev->vlan_features |= NETIF_F_RXHASH;
+
+ if (!!MLX5_CAP_ETH(mdev, lro_cap))
+ netdev->vlan_features |= NETIF_F_LRO;
+
+ netdev->hw_features = netdev->vlan_features;
+ netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
+ netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
+ netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
+
+ netdev->features = netdev->hw_features;
+ if (!priv->params.lro_en)
+ netdev->features &= ~NETIF_F_LRO;
+
+ netdev->features |= NETIF_F_HIGHDMA;
+
+ netdev->priv_flags |= IFF_UNICAST_FLT;
+
+ mlx5e_set_netdev_dev_addr(netdev);
+}
+
+static int mlx5e_create_mkey(struct mlx5e_priv *priv, u32 pdn,
+ struct mlx5_core_mr *mr)
+{
+ struct mlx5_core_dev *mdev = priv->mdev;
+ struct mlx5_create_mkey_mbox_in *in;
+ int err;
+
+ in = mlx5_vzalloc(sizeof(*in));
+ if (!in)
+ return -ENOMEM;
+
+ in->seg.flags = MLX5_PERM_LOCAL_WRITE |
+ MLX5_PERM_LOCAL_READ |
+ MLX5_ACCESS_MODE_PA;
+ in->seg.flags_pd = cpu_to_be32(pdn | MLX5_MKEY_LEN64);
+ in->seg.qpn_mkey7_0 = cpu_to_be32(0xffffff << 8);
+
+ err = mlx5_core_create_mkey(mdev, mr, in, sizeof(*in), NULL, NULL,
+ NULL);
+
+ kvfree(in);
+
+ return err;
+}
+
+static void *mlx5e_create_netdev(struct mlx5_core_dev *mdev)
+{
+ struct net_device *netdev;
+ struct mlx5e_priv *priv;
+ int ncv = mdev->priv.eq_table.num_comp_vectors;
+ int err;
+
+ if (mlx5e_check_required_hca_cap(mdev))
+ return NULL;
+
+ netdev = alloc_etherdev_mqs(sizeof(struct mlx5e_priv),
+ roundup_pow_of_two(ncv) * MLX5E_MAX_NUM_TC,
+ ncv);
+ if (!netdev) {
+ mlx5_core_err(mdev, "alloc_etherdev_mqs() failed\n");
+ return NULL;
+ }
+
+ mlx5e_build_netdev_priv(mdev, netdev, ncv);
+ mlx5e_build_netdev(netdev);
+
+ netif_carrier_off(netdev);
+
+ priv = netdev_priv(netdev);
+
+ err = mlx5_alloc_map_uar(mdev, &priv->cq_uar);
+ if (err) {
+ netdev_err(netdev, "%s: mlx5_alloc_map_uar failed, %d\n",
+ __func__, err);
+ goto err_free_netdev;
+ }
+
+ err = mlx5_core_alloc_pd(mdev, &priv->pdn);
+ if (err) {
+ netdev_err(netdev, "%s: mlx5_core_alloc_pd failed, %d\n",
+ __func__, err);
+ goto err_unmap_free_uar;
+ }
+
+ err = mlx5e_create_mkey(priv, priv->pdn, &priv->mr);
+ if (err) {
+ netdev_err(netdev, "%s: mlx5e_create_mkey failed, %d\n",
+ __func__, err);
+ goto err_dealloc_pd;
+ }
+
+ err = register_netdev(netdev);
+ if (err) {
+ netdev_err(netdev, "%s: register_netdev failed, %d\n",
+ __func__, err);
+ goto err_destroy_mkey;
+ }
+
+ mlx5e_enable_async_events(priv);
+
+ return priv;
+
+err_destroy_mkey:
+ mlx5_core_destroy_mkey(mdev, &priv->mr);
+
+err_dealloc_pd:
+ mlx5_core_dealloc_pd(mdev, priv->pdn);
+
+err_unmap_free_uar:
+ mlx5_unmap_free_uar(mdev, &priv->cq_uar);
+
+err_free_netdev:
+ free_netdev(netdev);
+
+ return NULL;
+}
+
+static void mlx5e_destroy_netdev(struct mlx5_core_dev *mdev, void *vpriv)
+{
+ struct mlx5e_priv *priv = vpriv;
+ struct net_device *netdev = priv->netdev;
+
+ unregister_netdev(netdev);
+ mlx5_core_destroy_mkey(priv->mdev, &priv->mr);
+ mlx5_core_dealloc_pd(priv->mdev, priv->pdn);
+ mlx5_unmap_free_uar(priv->mdev, &priv->cq_uar);
+ mlx5e_disable_async_events(priv);
+ flush_scheduled_work();
+ free_netdev(netdev);
+}
+
+static void *mlx5e_get_netdev(void *vpriv)
+{
+ struct mlx5e_priv *priv = vpriv;
+
+ return priv->netdev;
+}
+
+static struct mlx5_interface mlx5e_interface = {
+ .add = mlx5e_create_netdev,
+ .remove = mlx5e_destroy_netdev,
+ .event = mlx5e_async_event,
+ .protocol = MLX5_INTERFACE_PROTOCOL_ETH,
+ .get_dev = mlx5e_get_netdev,
+};
+
+void mlx5e_init(void)
+{
+ mlx5_register_interface(&mlx5e_interface);
+}
+
+void mlx5e_cleanup(void)
+{
+ mlx5_unregister_interface(&mlx5e_interface);
+}
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff