diff options
Diffstat (limited to 'drivers/net/ethernet/google/gve/gve_main.c')
| -rw-r--r-- | drivers/net/ethernet/google/gve/gve_main.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/net/ethernet/google/gve/gve_main.c b/drivers/net/ethernet/google/gve/gve_main.c index 02d12aa50885..7b89b66adb53 100644 --- a/drivers/net/ethernet/google/gve/gve_main.c +++ b/drivers/net/ethernet/google/gve/gve_main.c @@ -1307,9 +1307,13 @@ static void gve_rx_get_curr_alloc_cfg(struct gve_priv *priv, cfg->qcfg = &priv->rx_cfg; cfg->qcfg_tx = &priv->tx_cfg; cfg->raw_addressing = !gve_is_qpl(priv); + cfg->enable_header_split = priv->header_split_enabled; cfg->qpls = priv->qpls; cfg->qpl_cfg = &priv->qpl_cfg; cfg->ring_size = priv->rx_desc_cnt; + cfg->packet_buffer_size = gve_is_gqi(priv) ? + GVE_DEFAULT_RX_BUFFER_SIZE : + priv->data_buffer_size_dqo; cfg->rx = priv->rx; } @@ -1448,6 +1452,9 @@ static int gve_queues_start(struct gve_priv *priv, if (err) goto reset; + priv->header_split_enabled = rx_alloc_cfg->enable_header_split; + priv->data_buffer_size_dqo = rx_alloc_cfg->packet_buffer_size; + err = gve_create_rings(priv); if (err) goto reset; @@ -2059,6 +2066,56 @@ out: priv->tx_timeo_cnt++; } +u16 gve_get_pkt_buf_size(const struct gve_priv *priv, bool enable_hsplit) +{ + if (enable_hsplit && priv->max_rx_buffer_size >= GVE_MAX_RX_BUFFER_SIZE) + return GVE_MAX_RX_BUFFER_SIZE; + else + return GVE_DEFAULT_RX_BUFFER_SIZE; +} + +/* header-split is not supported on non-DQO_RDA yet even if device advertises it */ +bool gve_header_split_supported(const struct gve_priv *priv) +{ + return priv->header_buf_size && priv->queue_format == GVE_DQO_RDA_FORMAT; +} + +int gve_set_hsplit_config(struct gve_priv *priv, u8 tcp_data_split) +{ + struct gve_tx_alloc_rings_cfg tx_alloc_cfg = {0}; + struct gve_rx_alloc_rings_cfg rx_alloc_cfg = {0}; + struct gve_qpls_alloc_cfg qpls_alloc_cfg = {0}; + bool enable_hdr_split; + int err = 0; + + if (tcp_data_split == ETHTOOL_TCP_DATA_SPLIT_UNKNOWN) + return 0; + + if (!gve_header_split_supported(priv)) { + dev_err(&priv->pdev->dev, "Header-split not supported\n"); + return -EOPNOTSUPP; + } + + if (tcp_data_split == ETHTOOL_TCP_DATA_SPLIT_ENABLED) + enable_hdr_split = true; + else + enable_hdr_split = false; + + if (enable_hdr_split == priv->header_split_enabled) + return 0; + + gve_get_curr_alloc_cfgs(priv, &qpls_alloc_cfg, + &tx_alloc_cfg, &rx_alloc_cfg); + + rx_alloc_cfg.enable_header_split = enable_hdr_split; + rx_alloc_cfg.packet_buffer_size = gve_get_pkt_buf_size(priv, enable_hdr_split); + + if (netif_running(priv->dev)) + err = gve_adjust_config(priv, &qpls_alloc_cfg, + &tx_alloc_cfg, &rx_alloc_cfg); + return err; +} + static int gve_set_features(struct net_device *netdev, netdev_features_t features) { |