@@ -39,7 +39,7 @@ ethtool_SOURCES += \
netlink/eee.c netlink/tsinfo.c netlink/fec.c \
netlink/stats.c \
netlink/desc-ethtool.c netlink/desc-genlctrl.c \
- netlink/module-eeprom.c \
+ netlink/module-eeprom.c netlink/module.c \
netlink/desc-rtnl.c netlink/cable_test.c netlink/tunnels.c \
uapi/linux/ethtool_netlink.h \
uapi/linux/netlink.h uapi/linux/genetlink.h \
@@ -475,6 +475,13 @@ ethtool \- query or control network driver and hardware settings
.HP
.B ethtool \-\-show\-tunnels
.I devname
+.HP
+.B ethtool \-\-show\-module
+.I devname
+.HP
+.B ethtool \-\-set\-module
+.I devname
+.B2 low-power on off
.
.\" Adjust lines (i.e. full justification) and hyphenate.
.ad
@@ -1458,6 +1465,14 @@ Show tunnel-related device capabilities and state.
List UDP ports kernel has programmed the device to parse as VxLAN,
or GENEVE tunnels.
.RE
+.TP
+.B \-\-set\-module
+Set the transceiver module's parameters.
+.RS 4
+.TP
+.A2 low-power on off
+Enable / disable forcing of low power mode by the host.
+.RE
.SH BUGS
Not supported (in part or whole) on all network drivers.
.SH AUTHOR
@@ -6020,6 +6020,17 @@ static const struct option args[] = {
.nlfunc = nl_gtunnels,
.help = "Show NIC tunnel offload information",
},
+ {
+ .opts = "--show-module",
+ .nlfunc = nl_gmodule,
+ .help = "Show transceiver module settings",
+ },
+ {
+ .opts = "--set-module",
+ .nlfunc = nl_smodule,
+ .help = "Set transceiver module settings",
+ .xhelp = " [ low-power on|off ]\n"
+ },
{
.opts = "-h|--help",
.no_dev = true,
@@ -374,6 +374,12 @@ const struct pretty_nla_desc __module_eeprom_desc[] = {
NLATTR_DESC_BINARY(ETHTOOL_A_MODULE_EEPROM_DATA)
};
+static const struct pretty_nla_desc __module_desc[] = {
+ NLATTR_DESC_INVALID(ETHTOOL_A_MODULE_UNSPEC),
+ NLATTR_DESC_NESTED(ETHTOOL_A_MODULE_HEADER, header),
+ NLATTR_DESC_BOOL(ETHTOOL_A_MODULE_LOW_POWER_ENABLED),
+};
+
const struct pretty_nlmsg_desc ethnl_umsg_desc[] = {
NLMSG_DESC_INVALID(ETHTOOL_MSG_USER_NONE),
NLMSG_DESC(ETHTOOL_MSG_STRSET_GET, strset),
@@ -408,6 +414,8 @@ const struct pretty_nlmsg_desc ethnl_umsg_desc[] = {
NLMSG_DESC(ETHTOOL_MSG_FEC_SET, fec),
NLMSG_DESC(ETHTOOL_MSG_STATS_GET, stats),
NLMSG_DESC(ETHTOOL_MSG_MODULE_EEPROM_GET, module_eeprom),
+ NLMSG_DESC(ETHTOOL_MSG_MODULE_GET, module),
+ NLMSG_DESC(ETHTOOL_MSG_MODULE_SET, module),
};
const unsigned int ethnl_umsg_n_desc = ARRAY_SIZE(ethnl_umsg_desc);
@@ -447,6 +455,8 @@ const struct pretty_nlmsg_desc ethnl_kmsg_desc[] = {
NLMSG_DESC(ETHTOOL_MSG_FEC_NTF, fec),
NLMSG_DESC(ETHTOOL_MSG_STATS_GET_REPLY, stats),
NLMSG_DESC(ETHTOOL_MSG_MODULE_EEPROM_GET_REPLY, module_eeprom),
+ NLMSG_DESC(ETHTOOL_MSG_MODULE_GET_REPLY, module),
+ NLMSG_DESC(ETHTOOL_MSG_MODULE_NTF, module),
};
const unsigned int ethnl_kmsg_n_desc = ARRAY_SIZE(ethnl_kmsg_desc);
@@ -43,6 +43,8 @@ int nl_gfec(struct cmd_context *ctx);
int nl_sfec(struct cmd_context *ctx);
bool nl_gstats_chk(struct cmd_context *ctx);
int nl_gstats(struct cmd_context *ctx);
+int nl_gmodule(struct cmd_context *ctx);
+int nl_smodule(struct cmd_context *ctx);
int nl_monitor(struct cmd_context *ctx);
int nl_getmodule(struct cmd_context *ctx);
@@ -99,6 +101,8 @@ static inline void nl_monitor_usage(void)
#define nl_gstats_chk NULL
#define nl_gstats NULL
#define nl_getmodule NULL
+#define nl_gmodule NULL
+#define nl_smodule NULL
#endif /* ETHTOOL_ENABLE_NETLINK */
new file mode 100644
@@ -0,0 +1,139 @@
+/*
+ * module.c - netlink implementation of module commands
+ *
+ * Implementation of "ethtool --show-module <dev>" and
+ * "ethtool --set-module <dev> ..."
+ */
+
+#include <errno.h>
+#include <ctype.h>
+#include <inttypes.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "../internal.h"
+#include "../common.h"
+#include "netlink.h"
+#include "parser.h"
+
+/* MODULE_GET */
+
+int module_reply_cb(const struct nlmsghdr *nlhdr, void *data)
+{
+ const struct nlattr *tb[ETHTOOL_A_MODULE_MAX + 1] = {};
+ struct nl_context *nlctx = data;
+ DECLARE_ATTR_TB_INFO(tb);
+ bool silent;
+ int err_ret;
+ int ret;
+
+ silent = nlctx->is_dump || nlctx->is_monitor;
+ err_ret = silent ? MNL_CB_OK : MNL_CB_ERROR;
+ ret = mnl_attr_parse(nlhdr, GENL_HDRLEN, attr_cb, &tb_info);
+ if (ret < 0)
+ return err_ret;
+ nlctx->devname = get_dev_name(tb[ETHTOOL_A_MODULE_HEADER]);
+ if (!dev_ok(nlctx))
+ return err_ret;
+
+ if (silent)
+ print_nl();
+
+ open_json_object(NULL);
+
+ print_string(PRINT_ANY, "ifname", "Module parameters for %s:\n",
+ nlctx->devname);
+
+ if (tb[ETHTOOL_A_MODULE_LOW_POWER_ENABLED]) {
+ bool low_power;
+
+ low_power =
+ mnl_attr_get_u8(tb[ETHTOOL_A_MODULE_LOW_POWER_ENABLED]);
+ print_bool(PRINT_ANY, "low-power", "low-power %s\n", low_power);
+ }
+
+ close_json_object();
+
+ return MNL_CB_OK;
+}
+
+int nl_gmodule(struct cmd_context *ctx)
+{
+ struct nl_context *nlctx = ctx->nlctx;
+ struct nl_socket *nlsk;
+ int ret;
+
+ if (netlink_cmd_check(ctx, ETHTOOL_MSG_MODULE_GET, true))
+ return -EOPNOTSUPP;
+ if (ctx->argc > 0) {
+ fprintf(stderr, "ethtool: unexpected parameter '%s'\n",
+ *ctx->argp);
+ return 1;
+ }
+
+ nlsk = nlctx->ethnl_socket;
+ ret = nlsock_prep_get_request(nlsk, ETHTOOL_MSG_MODULE_GET,
+ ETHTOOL_A_MODULE_HEADER, 0);
+ if (ret < 0)
+ return ret;
+
+ new_json_obj(ctx->json);
+ ret = nlsock_send_get_request(nlsk, module_reply_cb);
+ delete_json_obj();
+ return ret;
+}
+
+/* MODULE_SET */
+
+static const struct param_parser smodule_params[] = {
+ {
+ .arg = "low-power",
+ .type = ETHTOOL_A_MODULE_LOW_POWER_ENABLED,
+ .handler = nl_parse_u8bool,
+ .min_argc = 1,
+ },
+ {}
+};
+
+int nl_smodule(struct cmd_context *ctx)
+{
+ struct nl_context *nlctx = ctx->nlctx;
+ struct nl_msg_buff *msgbuff;
+ struct nl_socket *nlsk;
+ int ret;
+
+ if (netlink_cmd_check(ctx, ETHTOOL_MSG_MODULE_SET, false))
+ return -EOPNOTSUPP;
+ if (!ctx->argc) {
+ fprintf(stderr, "ethtool (--set-module): parameters missing\n");
+ return 1;
+ }
+
+ nlctx->cmd = "--set-module";
+ nlctx->argp = ctx->argp;
+ nlctx->argc = ctx->argc;
+ nlctx->devname = ctx->devname;
+ nlsk = nlctx->ethnl_socket;
+ msgbuff = &nlsk->msgbuff;
+
+ ret = msg_init(nlctx, msgbuff, ETHTOOL_MSG_MODULE_SET,
+ NLM_F_REQUEST | NLM_F_ACK);
+ if (ret < 0)
+ return 2;
+ if (ethnla_fill_header(msgbuff, ETHTOOL_A_MODULE_HEADER,
+ ctx->devname, 0))
+ return -EMSGSIZE;
+
+ ret = nl_parser(nlctx, smodule_params, NULL, PARSER_GROUP_NONE, NULL);
+ if (ret < 0)
+ return 1;
+
+ ret = nlsock_sendmsg(nlsk, NULL);
+ if (ret < 0)
+ return 83;
+ ret = nlsock_process_reply(nlsk, nomsg_reply_cb, nlctx);
+ if (ret == 0)
+ return 0;
+ else
+ return nlctx->exit_code ?: 83;
+}
@@ -71,6 +71,10 @@ static struct {
.cmd = ETHTOOL_MSG_FEC_NTF,
.cb = fec_reply_cb,
},
+ {
+ .cmd = ETHTOOL_MSG_MODULE_NTF,
+ .cb = module_reply_cb,
+ },
};
static void clear_filter(struct nl_context *nlctx)
@@ -91,6 +91,7 @@ int cable_test_ntf_cb(const struct nlmsghdr *nlhdr, void *data);
int cable_test_tdr_reply_cb(const struct nlmsghdr *nlhdr, void *data);
int cable_test_tdr_ntf_cb(const struct nlmsghdr *nlhdr, void *data);
int fec_reply_cb(const struct nlmsghdr *nlhdr, void *data);
+int module_reply_cb(const struct nlmsghdr *nlhdr, void *data);
/* dump helpers */
@@ -1137,6 +1137,26 @@ _ethtool_test()
fi
}
+# Completion for ethtool --set-module
+_ethtool_set_module()
+{
+ local -A settings=(
+ [low-power]=1
+ )
+
+ if [ "${settings[$prev]+set}" ]; then
+ COMPREPLY=( $( compgen -W 'on off' -- "$cur" ) )
+ return
+ fi
+
+ # Remove settings which have been seen
+ local word
+ for word in "${words[@]:3:${#words[@]}-4}"; do
+ unset "settings[$word]"
+ done
+
+ COMPREPLY=( $( compgen -W "${!settings[*]}" -- "$cur" ) )
+}
# Complete any ethtool command
_ethtool()
@@ -1189,6 +1209,8 @@ _ethtool()
[--show-time-stamping]=devname
[--statistics]=devname
[--test]=test
+ [--set-module]=set_module
+ [--show-module]=devname
)
local -A other_funcs=(
[--config-ntuple]=config_nfc