diff options
Diffstat (limited to 'target/linux/generic/backport-5.15/706-04-v6.0-net-ethernet-mtk_eth_soc-add-support-for-page_pool_g.patch')
| -rw-r--r-- | target/linux/generic/backport-5.15/706-04-v6.0-net-ethernet-mtk_eth_soc-add-support-for-page_pool_g.patch | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.15/706-04-v6.0-net-ethernet-mtk_eth_soc-add-support-for-page_pool_g.patch b/target/linux/generic/backport-5.15/706-04-v6.0-net-ethernet-mtk_eth_soc-add-support-for-page_pool_g.patch new file mode 100644 index 0000000000..d372f022c7 --- /dev/null +++ b/target/linux/generic/backport-5.15/706-04-v6.0-net-ethernet-mtk_eth_soc-add-support-for-page_pool_g.patch @@ -0,0 +1,95 @@ +From 84b9cd389036d4a262d8cee794d56c04095358a7 Mon Sep 17 00:00:00 2001 +From: Lorenzo Bianconi <lorenzo@kernel.org> +Date: Fri, 22 Jul 2022 09:19:40 +0200 +Subject: [PATCH] net: ethernet: mtk_eth_soc: add support for + page_pool_get_stats + +Introduce support for the page_pool stats API into mtk_eth_soc driver. +Report page_pool stats through ethtool. + +Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/mediatek/Kconfig | 1 + + drivers/net/ethernet/mediatek/mtk_eth_soc.c | 37 +++++++++++++++++++-- + 2 files changed, 35 insertions(+), 3 deletions(-) + +--- a/drivers/net/ethernet/mediatek/Kconfig ++++ b/drivers/net/ethernet/mediatek/Kconfig +@@ -17,6 +17,7 @@ config NET_MEDIATEK_SOC + select PHYLINK + select DIMLIB + select PAGE_POOL ++ select PAGE_POOL_STATS + help + This driver supports the gigabit ethernet MACs in the + MediaTek SoC family. +--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c ++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c +@@ -3485,11 +3485,18 @@ static void mtk_get_strings(struct net_d + int i; + + switch (stringset) { +- case ETH_SS_STATS: ++ case ETH_SS_STATS: { ++ struct mtk_mac *mac = netdev_priv(dev); ++ + for (i = 0; i < ARRAY_SIZE(mtk_ethtool_stats); i++) { + memcpy(data, mtk_ethtool_stats[i].str, ETH_GSTRING_LEN); + data += ETH_GSTRING_LEN; + } ++ if (mtk_page_pool_enabled(mac->hw)) ++ page_pool_ethtool_stats_get_strings(data); ++ break; ++ } ++ default: + break; + } + } +@@ -3497,13 +3504,35 @@ static void mtk_get_strings(struct net_d + static int mtk_get_sset_count(struct net_device *dev, int sset) + { + switch (sset) { +- case ETH_SS_STATS: +- return ARRAY_SIZE(mtk_ethtool_stats); ++ case ETH_SS_STATS: { ++ int count = ARRAY_SIZE(mtk_ethtool_stats); ++ struct mtk_mac *mac = netdev_priv(dev); ++ ++ if (mtk_page_pool_enabled(mac->hw)) ++ count += page_pool_ethtool_stats_get_count(); ++ return count; ++ } + default: + return -EOPNOTSUPP; + } + } + ++static void mtk_ethtool_pp_stats(struct mtk_eth *eth, u64 *data) ++{ ++ struct page_pool_stats stats = {}; ++ int i; ++ ++ for (i = 0; i < ARRAY_SIZE(eth->rx_ring); i++) { ++ struct mtk_rx_ring *ring = ð->rx_ring[i]; ++ ++ if (!ring->page_pool) ++ continue; ++ ++ page_pool_get_stats(ring->page_pool, &stats); ++ } ++ page_pool_ethtool_stats_get(data, &stats); ++} ++ + static void mtk_get_ethtool_stats(struct net_device *dev, + struct ethtool_stats *stats, u64 *data) + { +@@ -3531,6 +3560,8 @@ static void mtk_get_ethtool_stats(struct + + for (i = 0; i < ARRAY_SIZE(mtk_ethtool_stats); i++) + *data_dst++ = *(data_src + mtk_ethtool_stats[i].offset); ++ if (mtk_page_pool_enabled(mac->hw)) ++ mtk_ethtool_pp_stats(mac->hw, data_dst); + } while (u64_stats_fetch_retry_irq(&hwstats->syncp, start)); + } + |