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author | Daniel Golle <daniel@makrotopia.org> | 2022-08-29 08:54:41 +0200 |
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committer | Daniel Golle <daniel@makrotopia.org> | 2022-09-22 23:55:02 +0100 |
commit | c93c5365c0eb78ba8b479a9fe0cc5ec96f773978 (patch) | |
tree | b250435d0f0e8e66c56d0486d1151d4eb1fc827e /target/linux/generic/backport-5.15/604-v5.19-net-page_pool-introduce-ethtool-stats.patch | |
parent | 524f52a471495d2c4e764539e000cb699610de1f (diff) | |
download | upstream-c93c5365c0eb78ba8b479a9fe0cc5ec96f773978.tar.gz upstream-c93c5365c0eb78ba8b479a9fe0cc5ec96f773978.tar.bz2 upstream-c93c5365c0eb78ba8b479a9fe0cc5ec96f773978.zip |
kernel: pick patches for MediaTek Ethernet from linux-next
Pick patches with several fixes and improvements, preparation for
upcoming WED (TX) [1] as well as basic XDP support [2] with MediaTek's
Filogic SoCs to the mtk_eth_soc driver.
Also pick follow-up patch fixing Ethernet on MT7621 [3].
Tested on Bananapi BPi-R3 (MT7986), Bananapi BPi-R64 (MT7622),
Bananapi BPi-R2 (MT7623), MikroTik RouterBoard M11G (MT7621).
[1]: https://patchwork.kernel.org/project/netdevbpf/list/?series=662108&state=*
[2]: https://patchwork.kernel.org/project/netdevbpf/list/?series=675368&state=*
(the first part of the series adding wed nodes to mt7986a.dtsi was
applied to the copy of mt7986a.dtsi in our tree)
[3]: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=5e69163d3b9931098922b3fc2f8e786af8c1f37e
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Diffstat (limited to 'target/linux/generic/backport-5.15/604-v5.19-net-page_pool-introduce-ethtool-stats.patch')
-rw-r--r-- | target/linux/generic/backport-5.15/604-v5.19-net-page_pool-introduce-ethtool-stats.patch | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.15/604-v5.19-net-page_pool-introduce-ethtool-stats.patch b/target/linux/generic/backport-5.15/604-v5.19-net-page_pool-introduce-ethtool-stats.patch new file mode 100644 index 0000000000..0694c5cfcb --- /dev/null +++ b/target/linux/generic/backport-5.15/604-v5.19-net-page_pool-introduce-ethtool-stats.patch @@ -0,0 +1,144 @@ +commit f3c5264f452a5b0ac1de1f2f657efbabdea3c76a +Author: Lorenzo Bianconi <lorenzo@kernel.org> +Date: Tue Apr 12 18:31:58 2022 +0200 + + net: page_pool: introduce ethtool stats + + Introduce page_pool APIs to report stats through ethtool and reduce + duplicated code in each driver. + + Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> + Reviewed-by: Jakub Kicinski <kuba@kernel.org> + Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> + Signed-off-by: David S. Miller <davem@davemloft.net> + +--- a/include/net/page_pool.h ++++ b/include/net/page_pool.h +@@ -115,6 +115,10 @@ struct page_pool_stats { + struct page_pool_recycle_stats recycle_stats; + }; + ++int page_pool_ethtool_stats_get_count(void); ++u8 *page_pool_ethtool_stats_get_strings(u8 *data); ++u64 *page_pool_ethtool_stats_get(u64 *data, void *stats); ++ + /* + * Drivers that wish to harvest page pool stats and report them to users + * (perhaps via ethtool, debugfs, or another mechanism) can allocate a +@@ -122,6 +126,23 @@ struct page_pool_stats { + */ + bool page_pool_get_stats(struct page_pool *pool, + struct page_pool_stats *stats); ++#else ++ ++static inline int page_pool_ethtool_stats_get_count(void) ++{ ++ return 0; ++} ++ ++static inline u8 *page_pool_ethtool_stats_get_strings(u8 *data) ++{ ++ return data; ++} ++ ++static inline u64 *page_pool_ethtool_stats_get(u64 *data, void *stats) ++{ ++ return data; ++} ++ + #endif + + struct page_pool { +--- a/net/core/page_pool.c ++++ b/net/core/page_pool.c +@@ -18,6 +18,7 @@ + #include <linux/page-flags.h> + #include <linux/mm.h> /* for __put_page() */ + #include <linux/poison.h> ++#include <linux/ethtool.h> + + #include <trace/events/page_pool.h> + +@@ -42,6 +43,20 @@ + this_cpu_add(s->__stat, val); \ + } while (0) + ++static const char pp_stats[][ETH_GSTRING_LEN] = { ++ "rx_pp_alloc_fast", ++ "rx_pp_alloc_slow", ++ "rx_pp_alloc_slow_ho", ++ "rx_pp_alloc_empty", ++ "rx_pp_alloc_refill", ++ "rx_pp_alloc_waive", ++ "rx_pp_recycle_cached", ++ "rx_pp_recycle_cache_full", ++ "rx_pp_recycle_ring", ++ "rx_pp_recycle_ring_full", ++ "rx_pp_recycle_released_ref", ++}; ++ + bool page_pool_get_stats(struct page_pool *pool, + struct page_pool_stats *stats) + { +@@ -50,7 +65,13 @@ bool page_pool_get_stats(struct page_poo + if (!stats) + return false; + +- memcpy(&stats->alloc_stats, &pool->alloc_stats, sizeof(pool->alloc_stats)); ++ /* The caller is responsible to initialize stats. */ ++ stats->alloc_stats.fast += pool->alloc_stats.fast; ++ stats->alloc_stats.slow += pool->alloc_stats.slow; ++ stats->alloc_stats.slow_high_order += pool->alloc_stats.slow_high_order; ++ stats->alloc_stats.empty += pool->alloc_stats.empty; ++ stats->alloc_stats.refill += pool->alloc_stats.refill; ++ stats->alloc_stats.waive += pool->alloc_stats.waive; + + for_each_possible_cpu(cpu) { + const struct page_pool_recycle_stats *pcpu = +@@ -66,6 +87,46 @@ bool page_pool_get_stats(struct page_poo + return true; + } + EXPORT_SYMBOL(page_pool_get_stats); ++ ++u8 *page_pool_ethtool_stats_get_strings(u8 *data) ++{ ++ int i; ++ ++ for (i = 0; i < ARRAY_SIZE(pp_stats); i++) { ++ memcpy(data, pp_stats[i], ETH_GSTRING_LEN); ++ data += ETH_GSTRING_LEN; ++ } ++ ++ return data; ++} ++EXPORT_SYMBOL(page_pool_ethtool_stats_get_strings); ++ ++int page_pool_ethtool_stats_get_count(void) ++{ ++ return ARRAY_SIZE(pp_stats); ++} ++EXPORT_SYMBOL(page_pool_ethtool_stats_get_count); ++ ++u64 *page_pool_ethtool_stats_get(u64 *data, void *stats) ++{ ++ struct page_pool_stats *pool_stats = stats; ++ ++ *data++ = pool_stats->alloc_stats.fast; ++ *data++ = pool_stats->alloc_stats.slow; ++ *data++ = pool_stats->alloc_stats.slow_high_order; ++ *data++ = pool_stats->alloc_stats.empty; ++ *data++ = pool_stats->alloc_stats.refill; ++ *data++ = pool_stats->alloc_stats.waive; ++ *data++ = pool_stats->recycle_stats.cached; ++ *data++ = pool_stats->recycle_stats.cache_full; ++ *data++ = pool_stats->recycle_stats.ring; ++ *data++ = pool_stats->recycle_stats.ring_full; ++ *data++ = pool_stats->recycle_stats.released_refcnt; ++ ++ return data; ++} ++EXPORT_SYMBOL(page_pool_ethtool_stats_get); ++ + #else + #define alloc_stat_inc(pool, __stat) + #define recycle_stat_inc(pool, __stat) |