diff --git a/drivers/net/ethernet/google/gve/gve.h b/drivers/net/ethernet/google/gve/gve.h index abc0c708b47ac..b80349154604b 100644 --- a/drivers/net/ethernet/google/gve/gve.h +++ b/drivers/net/ethernet/google/gve/gve.h @@ -49,7 +49,9 @@ /* PTYPEs are always 10 bits. */ #define GVE_NUM_PTYPES 1024 -#define GVE_RX_BUFFER_SIZE_DQO 2048 +#define GVE_DEFAULT_RX_BUFFER_SIZE 2048 + +#define GVE_DEFAULT_RX_BUFFER_OFFSET 2048 #define GVE_XDP_ACTIONS 5 diff --git a/drivers/net/ethernet/google/gve/gve_ethtool.c b/drivers/net/ethernet/google/gve/gve_ethtool.c index 233e5946905e7..e5397aa1e48f2 100644 --- a/drivers/net/ethernet/google/gve/gve_ethtool.c +++ b/drivers/net/ethernet/google/gve/gve_ethtool.c @@ -519,7 +519,7 @@ static int gve_set_tunable(struct net_device *netdev, case ETHTOOL_RX_COPYBREAK: { u32 max_copybreak = gve_is_gqi(priv) ? - (PAGE_SIZE / 2) : priv->data_buffer_size_dqo; + GVE_DEFAULT_RX_BUFFER_SIZE : priv->data_buffer_size_dqo; len = *(u32 *)value; if (len > max_copybreak) diff --git a/drivers/net/ethernet/google/gve/gve_main.c b/drivers/net/ethernet/google/gve/gve_main.c index cc169748ffa2c..619bf63ec935b 100644 --- a/drivers/net/ethernet/google/gve/gve_main.c +++ b/drivers/net/ethernet/google/gve/gve_main.c @@ -1328,7 +1328,7 @@ static int gve_open(struct net_device *dev) /* Hard code this for now. This may be tuned in the future for * performance. */ - priv->data_buffer_size_dqo = GVE_RX_BUFFER_SIZE_DQO; + priv->data_buffer_size_dqo = GVE_DEFAULT_RX_BUFFER_SIZE; } err = gve_create_rings(priv); if (err) @@ -1664,7 +1664,7 @@ static int verify_xdp_configuration(struct net_device *dev) return -EOPNOTSUPP; } - if (dev->mtu > (PAGE_SIZE / 2) - sizeof(struct ethhdr) - GVE_RX_PAD) { + if (dev->mtu > GVE_DEFAULT_RX_BUFFER_SIZE - sizeof(struct ethhdr) - GVE_RX_PAD) { netdev_warn(dev, "XDP is not supported for mtu %d.\n", dev->mtu); return -EOPNOTSUPP; diff --git a/drivers/net/ethernet/google/gve/gve_rx.c b/drivers/net/ethernet/google/gve/gve_rx.c index 82aa185880499..7a8dc5386ffff 100644 --- a/drivers/net/ethernet/google/gve/gve_rx.c +++ b/drivers/net/ethernet/google/gve/gve_rx.c @@ -283,7 +283,7 @@ static int gve_rx_alloc_ring(struct gve_priv *priv, int idx) /* Allocating half-page buffers allows page-flipping which is faster * than copying or allocating new pages. */ - rx->packet_buffer_size = PAGE_SIZE / 2; + rx->packet_buffer_size = GVE_DEFAULT_RX_BUFFER_SIZE; gve_rx_ctx_clear(&rx->ctx); gve_rx_add_to_block(priv, idx); @@ -399,10 +399,10 @@ static struct sk_buff *gve_rx_add_frags(struct napi_struct *napi, static void gve_rx_flip_buff(struct gve_rx_slot_page_info *page_info, __be64 *slot_addr) { - const __be64 offset = cpu_to_be64(PAGE_SIZE / 2); + const __be64 offset = cpu_to_be64(GVE_DEFAULT_RX_BUFFER_OFFSET); /* "flip" to other packet buffer on this page */ - page_info->page_offset ^= PAGE_SIZE / 2; + page_info->page_offset ^= GVE_DEFAULT_RX_BUFFER_OFFSET; *(slot_addr) ^= offset; } @@ -507,8 +507,7 @@ static struct sk_buff *gve_rx_copy_to_pool(struct gve_rx_ring *rx, return NULL; gve_dec_pagecnt_bias(copy_page_info); - copy_page_info->page_offset += rx->packet_buffer_size; - copy_page_info->page_offset &= (PAGE_SIZE - 1); + copy_page_info->page_offset ^= GVE_DEFAULT_RX_BUFFER_OFFSET; if (copy_page_info->can_flip) { /* We have used both halves of this copy page, it diff --git a/drivers/net/ethernet/google/gve/gve_tx.c b/drivers/net/ethernet/google/gve/gve_tx.c index 9f6ffc4a54f0b..07ba124780dfa 100644 --- a/drivers/net/ethernet/google/gve/gve_tx.c +++ b/drivers/net/ethernet/google/gve/gve_tx.c @@ -819,7 +819,7 @@ int gve_xdp_xmit_one(struct gve_priv *priv, struct gve_tx_ring *tx, return 0; } -#define GVE_TX_START_THRESH PAGE_SIZE +#define GVE_TX_START_THRESH 4096 static int gve_clean_tx_done(struct gve_priv *priv, struct gve_tx_ring *tx, u32 to_do, bool try_to_wake)