From be85dbfeb37c8c4d4344da2ee594d78034b82489 Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Thu, 15 Apr 2021 15:53:15 -0700 Subject: ethtool: add FEC statistics Similarly to pause statistics add stats for FEC. The IEEE standard mandates two sets of counters: - 30.5.1.1.17 aFECCorrectedBlocks - 30.5.1.1.18 aFECUncorrectableBlocks where block is a block of bits FEC operates on. Each of these counters is defined per lane (PCS instance). Multiple vendors provide number of corrected _bits_ rather than/as well as blocks. This set adds the 2 standard-based block counters and a extra one for corrected bits. Counters are exposed to user space via netlink in new attributes. Each attribute carries an array of u64s, first element is the total count, and the following ones are a per-lane break down. Much like with pause stats the operation will not fail when driver does not implement the get_fec_stats callback (nor can the driver fail the operation by returning an error). If stats can't be reported the relevant attributes will be empty. Signed-off-by: Jakub Kicinski Signed-off-by: David S. Miller --- include/uapi/linux/ethtool_netlink.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/ethtool_netlink.h b/include/uapi/linux/ethtool_netlink.h index 9612dcd48a6a..3a2b31ccbc5b 100644 --- a/include/uapi/linux/ethtool_netlink.h +++ b/include/uapi/linux/ethtool_netlink.h @@ -643,11 +643,25 @@ enum { ETHTOOL_A_FEC_MODES, /* bitset */ ETHTOOL_A_FEC_AUTO, /* u8 */ ETHTOOL_A_FEC_ACTIVE, /* u32 */ + ETHTOOL_A_FEC_STATS, /* nest - _A_FEC_STAT */ __ETHTOOL_A_FEC_CNT, ETHTOOL_A_FEC_MAX = (__ETHTOOL_A_FEC_CNT - 1) }; +enum { + ETHTOOL_A_FEC_STAT_UNSPEC, + ETHTOOL_A_FEC_STAT_PAD, + + ETHTOOL_A_FEC_STAT_CORRECTED, /* array, u64 */ + ETHTOOL_A_FEC_STAT_UNCORR, /* array, u64 */ + ETHTOOL_A_FEC_STAT_CORR_BITS, /* array, u64 */ + + /* add new constants above here */ + __ETHTOOL_A_FEC_STAT_CNT, + ETHTOOL_A_FEC_STAT_MAX = (__ETHTOOL_A_FEC_STAT_CNT - 1) +}; + /* MODULE EEPROM */ enum { -- cgit v1.2.3