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authorVadim Fedorenko <vadim.fedorenko@linux.dev>2025-09-24 15:40:33 +0300
committerJakub Kicinski <kuba@kernel.org>2025-09-27 02:49:18 +0300
commitcc2f08129925b437bf28f7f7822f20dac083a87c (patch)
treedfcf1f26847c4a67e4b1fde8a8a2ad8bb834abe8 /drivers/net/netdevsim/ethtool.c
parentfbb8bc408027a94b0b513410df15003e6ba6a77c (diff)
downloadlinux-cc2f08129925b437bf28f7f7822f20dac083a87c.tar.xz
ethtool: add FEC bins histogram report
IEEE 802.3ck-2022 defines counters for FEC bins and 802.3df-2024 clarifies it a bit further. Implement reporting interface through as addition to FEC stats available in ethtool. Drivers can leave bin counter uninitialized if per-lane values are provided. In this case the core will recalculate summ for the bin. Signed-off-by: Vadim Fedorenko <vadim.fedorenko@linux.dev> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Link: https://patch.msgid.link/20250924124037.1508846-2-vadim.fedorenko@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/netdevsim/ethtool.c')
-rw-r--r--drivers/net/netdevsim/ethtool.c25
1 files changed, 24 insertions, 1 deletions
diff --git a/drivers/net/netdevsim/ethtool.c b/drivers/net/netdevsim/ethtool.c
index f631d90c428a..36a201533aae 100644
--- a/drivers/net/netdevsim/ethtool.c
+++ b/drivers/net/netdevsim/ethtool.c
@@ -165,11 +165,34 @@ nsim_set_fecparam(struct net_device *dev, struct ethtool_fecparam *fecparam)
return 0;
}
+static const struct ethtool_fec_hist_range netdevsim_fec_ranges[] = {
+ { 0, 0},
+ { 1, 3},
+ { 4, 7},
+ { 0, 0}
+};
+
static void
-nsim_get_fec_stats(struct net_device *dev, struct ethtool_fec_stats *fec_stats)
+nsim_get_fec_stats(struct net_device *dev, struct ethtool_fec_stats *fec_stats,
+ struct ethtool_fec_hist *hist)
{
+ struct ethtool_fec_hist_value *values = hist->values;
+
+ hist->ranges = netdevsim_fec_ranges;
+
fec_stats->corrected_blocks.total = 123;
fec_stats->uncorrectable_blocks.total = 4;
+
+ values[0].per_lane[0] = 125;
+ values[0].per_lane[1] = 120;
+ values[0].per_lane[2] = 100;
+ values[0].per_lane[3] = 100;
+ values[1].sum = 12;
+ values[2].sum = 2;
+ values[2].per_lane[0] = 2;
+ values[2].per_lane[1] = 0;
+ values[2].per_lane[2] = 0;
+ values[2].per_lane[3] = 0;
}
static int nsim_get_ts_info(struct net_device *dev,