# ethtool -I --show-fec eth0
FEC parameters for eth0:
Configured FEC encodings: None
Active FEC encoding: None
Statistics:
corrected_blocks: 256
Lane 0: 255
Lane 1: 1
uncorrectable_blocks: 145
Lane 0: 128
Lane 1: 17
# ethtool --json -I --show-fec eth0
[ {
"ifname": "eth0",
"config": [ "None" ],
"active": [ "None" ],
"statistics": {
"corrected_blocks": {
"total": 256,
"lanes": [ 255,1 ]
},
"uncorrectable_blocks": {
"total": 145,
"lanes": [ 128,17 ]
}
}
} ]
Signed-off-by: Jakub Kicinski <k...@kernel.org>
---
netlink/fec.c | 85 ++++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 84 insertions(+), 1 deletion(-)
diff --git a/netlink/fec.c b/netlink/fec.c
index 9d15832db98a..1efd18d38142 100644
--- a/netlink/fec.c
+++ b/netlink/fec.c
@@ -7,6 +7,7 @@
#include <errno.h>
#include <ctype.h>
+#include <inttypes.h>
#include <string.h>
#include <stdio.h>
@@ -40,6 +41,79 @@ fec_mode_walk(unsigned int idx, const char *name, bool val,
void *data)
print_string(PRINT_ANY, NULL, " %s", name);
}
+static int fec_show_stats(const struct nlattr *nest)
+{
+ const struct nlattr *tb[ETHTOOL_A_FEC_STAT_MAX + 1] = {};
+ DECLARE_ATTR_TB_INFO(tb);
+ static const struct {
+ unsigned int attr;
+ char *name;
+ } stats[] = {
+ { ETHTOOL_A_FEC_STAT_CORRECTED, "corrected_blocks" },
+ { ETHTOOL_A_FEC_STAT_UNCORR, "uncorrectable_blocks" },
+ { ETHTOOL_A_FEC_STAT_CORR_BITS, "corrected_bits" },
+ };
+ bool header = false;
+ unsigned int i;
+ int ret;
+
+ ret = mnl_attr_parse_nested(nest, attr_cb, &tb_info);
+ if (ret < 0)
+ return ret;
+
+ open_json_object("statistics");
+ for (i = 0; i < ARRAY_SIZE(stats); i++) {
+ uint64_t *vals;
+ int lanes, l;
+
+ if (!tb[stats[i].attr] ||
+ !mnl_attr_get_payload_len(tb[stats[i].attr]))
+ continue;
+
+ if (!header && !is_json_context()) {
+ printf("Statistics:\n");
+ header = true;
+ }
+
+ if (mnl_attr_get_payload_len(tb[stats[i].attr]) % 8) {
+ fprintf(stderr, "malformed netlink message
(statistic)\n");
+ goto err_close_stats;
+ }
+
+ vals = mnl_attr_get_payload(tb[stats[i].attr]);
+ lanes = mnl_attr_get_payload_len(tb[stats[i].attr]) / 8 - 1;
+
+ if (!is_json_context()) {
+ fprintf(stdout, " %s: %" PRIu64 "\n",
+ stats[i].name, *vals++);
+ } else {
+ open_json_object(stats[i].name);
+ print_u64(PRINT_JSON, "total", NULL, *vals++);
+ }
+
+ if (lanes)
+ open_json_array("lanes", "");
+ for (l = 0; l < lanes; l++) {
+ if (!is_json_context())
+ fprintf(stdout, " Lane %d: %" PRIu64 "\n",
+ l, *vals++);
+ else
+ print_u64(PRINT_JSON, NULL, NULL, *vals++);
+ }
+ if (lanes)
+ close_json_array("");
+
+ close_json_object();
+ }
+ close_json_object();
+
+ return 0;
+
+err_close_stats:
+ close_json_object();
+ return -1;
+}
+
int fec_reply_cb(const struct nlmsghdr *nlhdr, void *data)
{
const struct nlattr *tb[ETHTOOL_A_FEC_MAX + 1] = {};
@@ -106,6 +180,12 @@ int fec_reply_cb(const struct nlmsghdr *nlhdr, void *data)
}
close_json_array("\n");
+ if (tb[ETHTOOL_A_FEC_STATS]) {
+ ret = fec_show_stats(tb[ETHTOOL_A_FEC_STATS]);
+ if (ret < 0)
+ goto err_close_dev;
+ }
+
close_json_object();
return MNL_CB_OK;
@@ -119,6 +199,7 @@ int nl_gfec(struct cmd_context *ctx)
{
struct nl_context *nlctx = ctx->nlctx;
struct nl_socket *nlsk = nlctx->ethnl_socket;
+ u32 flags;
int ret;
if (netlink_cmd_check(ctx, ETHTOOL_MSG_FEC_GET, true))
@@ -129,8 +210,10 @@ int nl_gfec(struct cmd_context *ctx)
return 1;
}
+ flags = get_stats_flag(nlctx, ETHTOOL_MSG_FEC_GET,
+ ETHTOOL_A_FEC_HEADER);
ret = nlsock_prep_get_request(nlsk, ETHTOOL_MSG_FEC_GET,
- ETHTOOL_A_FEC_HEADER, 0);
+ ETHTOOL_A_FEC_HEADER, flags);
if (ret < 0)
return ret;
--
2.30.2
