111 lines
3.4 KiB
Diff
111 lines
3.4 KiB
Diff
From 916a6ee836d6b7b8ef1ed5f0515e256ca60e9968 Mon Sep 17 00:00:00 2001
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From: Lorenzo Bianconi <lorenzo@kernel.org>
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Date: Fri, 22 Jul 2022 09:19:38 +0200
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Subject: [PATCH] net: ethernet: mtk_eth_soc: introduce xdp ethtool counters
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Report xdp stats through ethtool
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Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/ethernet/mediatek/mtk_eth_soc.c | 26 +++++++++++++++++++--
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drivers/net/ethernet/mediatek/mtk_eth_soc.h | 12 ++++++++++
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2 files changed, 36 insertions(+), 2 deletions(-)
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--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
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+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
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@@ -34,6 +34,10 @@ MODULE_PARM_DESC(msg_level, "Message lev
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#define MTK_ETHTOOL_STAT(x) { #x, \
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offsetof(struct mtk_hw_stats, x) / sizeof(u64) }
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+#define MTK_ETHTOOL_XDP_STAT(x) { #x, \
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+ offsetof(struct mtk_hw_stats, xdp_stats.x) / \
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+ sizeof(u64) }
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+
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static const struct mtk_reg_map mtk_reg_map = {
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.tx_irq_mask = 0x1a1c,
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.tx_irq_status = 0x1a18,
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@@ -141,6 +145,13 @@ static const struct mtk_ethtool_stats {
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MTK_ETHTOOL_STAT(rx_long_errors),
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MTK_ETHTOOL_STAT(rx_checksum_errors),
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MTK_ETHTOOL_STAT(rx_flow_control_packets),
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+ MTK_ETHTOOL_XDP_STAT(rx_xdp_redirect),
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+ MTK_ETHTOOL_XDP_STAT(rx_xdp_pass),
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+ MTK_ETHTOOL_XDP_STAT(rx_xdp_drop),
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+ MTK_ETHTOOL_XDP_STAT(rx_xdp_tx),
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+ MTK_ETHTOOL_XDP_STAT(rx_xdp_tx_errors),
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+ MTK_ETHTOOL_XDP_STAT(tx_xdp_xmit),
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+ MTK_ETHTOOL_XDP_STAT(tx_xdp_xmit_errors),
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};
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static const char * const mtk_clks_source_name[] = {
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@@ -1459,6 +1470,9 @@ static void mtk_rx_put_buff(struct mtk_r
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static u32 mtk_xdp_run(struct mtk_eth *eth, struct mtk_rx_ring *ring,
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struct xdp_buff *xdp, struct net_device *dev)
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{
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+ struct mtk_mac *mac = netdev_priv(dev);
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+ struct mtk_hw_stats *hw_stats = mac->hw_stats;
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+ u64 *count = &hw_stats->xdp_stats.rx_xdp_drop;
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struct bpf_prog *prog;
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u32 act = XDP_PASS;
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@@ -1471,13 +1485,16 @@ static u32 mtk_xdp_run(struct mtk_eth *e
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act = bpf_prog_run_xdp(prog, xdp);
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switch (act) {
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case XDP_PASS:
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- goto out;
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+ count = &hw_stats->xdp_stats.rx_xdp_pass;
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+ goto update_stats;
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case XDP_REDIRECT:
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if (unlikely(xdp_do_redirect(dev, xdp, prog))) {
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act = XDP_DROP;
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break;
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}
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- goto out;
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+
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+ count = &hw_stats->xdp_stats.rx_xdp_redirect;
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+ goto update_stats;
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default:
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bpf_warn_invalid_xdp_action(act);
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fallthrough;
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@@ -1490,6 +1507,11 @@ static u32 mtk_xdp_run(struct mtk_eth *e
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page_pool_put_full_page(ring->page_pool,
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virt_to_head_page(xdp->data), true);
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+
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+update_stats:
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+ u64_stats_update_begin(&hw_stats->syncp);
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+ *count = *count + 1;
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+ u64_stats_update_end(&hw_stats->syncp);
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out:
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rcu_read_unlock();
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--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
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+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
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@@ -568,6 +568,16 @@ struct mtk_tx_dma_v2 {
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struct mtk_eth;
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struct mtk_mac;
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+struct mtk_xdp_stats {
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+ u64 rx_xdp_redirect;
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+ u64 rx_xdp_pass;
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+ u64 rx_xdp_drop;
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+ u64 rx_xdp_tx;
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+ u64 rx_xdp_tx_errors;
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+ u64 tx_xdp_xmit;
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+ u64 tx_xdp_xmit_errors;
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+};
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+
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/* struct mtk_hw_stats - the structure that holds the traffic statistics.
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* @stats_lock: make sure that stats operations are atomic
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* @reg_offset: the status register offset of the SoC
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@@ -591,6 +601,8 @@ struct mtk_hw_stats {
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u64 rx_checksum_errors;
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u64 rx_flow_control_packets;
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+ struct mtk_xdp_stats xdp_stats;
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+
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spinlock_t stats_lock;
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u32 reg_offset;
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struct u64_stats_sync syncp;
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