Adding upstream version 1:6.7.upstream/1%6.7

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 270 insertions, 0 deletions

diff --git a/netlink/mm.c b/netlink/mm.c
new file mode 100644
index 0000000..d026bc3
--- /dev/null
+++ b/netlink/mm.c
@@ -0,0 +1,270 @@
+/*
+ * mm.c - netlink implementation of MAC merge layer settings
+ *
+ * Implementation of "ethtool --show-mm <dev>" and "ethtool --set-mm <dev> ..."
+ */
+
+#include <errno.h>
+#include <inttypes.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "../internal.h"
+#include "../common.h"
+#include "netlink.h"
+#include "bitset.h"
+#include "parser.h"
+
+/* MM_GET */
+
+static const char *
+mm_verify_state_to_string(enum ethtool_mm_verify_status state)
+{
+	switch (state) {
+	case ETHTOOL_MM_VERIFY_STATUS_INITIAL:
+		return "INITIAL";
+	case ETHTOOL_MM_VERIFY_STATUS_VERIFYING:
+		return "VERIFYING";
+	case ETHTOOL_MM_VERIFY_STATUS_SUCCEEDED:
+		return "SUCCEEDED";
+	case ETHTOOL_MM_VERIFY_STATUS_FAILED:
+		return "FAILED";
+	case ETHTOOL_MM_VERIFY_STATUS_DISABLED:
+		return "DISABLED";
+	default:
+		return "UNKNOWN";
+	}
+}
+
+static int show_mm_stats(const struct nlattr *nest)
+{
+	const struct nlattr *tb[ETHTOOL_A_MM_STAT_MAX + 1] = {};
+	DECLARE_ATTR_TB_INFO(tb);
+	static const struct {
+		unsigned int attr;
+		char *name;
+	} stats[] = {
+		{ ETHTOOL_A_MM_STAT_REASSEMBLY_ERRORS, "MACMergeFrameAssErrorCount" },
+		{ ETHTOOL_A_MM_STAT_SMD_ERRORS, "MACMergeFrameSmdErrorCount" },
+		{ ETHTOOL_A_MM_STAT_REASSEMBLY_OK, "MACMergeFrameAssOkCount" },
+		{ ETHTOOL_A_MM_STAT_RX_FRAG_COUNT, "MACMergeFragCountRx" },
+		{ ETHTOOL_A_MM_STAT_TX_FRAG_COUNT, "MACMergeFragCountTx" },
+		{ ETHTOOL_A_MM_STAT_HOLD_COUNT, "MACMergeHoldCount" },
+	};
+	bool header = false;
+	unsigned int i;
+	size_t n;
+	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++) {
+		char fmt[64];
+
+		if (!tb[stats[i].attr])
+			continue;
+
+		if (!header && !is_json_context()) {
+			printf("Statistics:\n");
+			header = true;
+		}
+
+		if (mnl_attr_validate(tb[stats[i].attr], MNL_TYPE_U64)) {
+			fprintf(stderr, "malformed netlink message (statistic)\n");
+			goto err_close_stats;
+		}
+
+		n = snprintf(fmt, sizeof(fmt), "  %s: %%" PRIu64 "\n",
+			     stats[i].name);
+		if (n >= sizeof(fmt)) {
+			fprintf(stderr, "internal error - malformed label\n");
+			continue;
+		}
+
+		print_u64(PRINT_ANY, stats[i].name, fmt,
+			  mnl_attr_get_u64(tb[stats[i].attr]));
+	}
+	close_json_object();
+
+	return 0;
+
+err_close_stats:
+	close_json_object();
+	return -1;
+}
+
+int mm_reply_cb(const struct nlmsghdr *nlhdr, void *data)
+{
+	const struct nlattr *tb[ETHTOOL_A_MM_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_MM_HEADER]);
+	if (!dev_ok(nlctx))
+		return err_ret;
+
+	if (silent)
+		print_nl();
+
+	open_json_object(NULL);
+
+	print_string(PRINT_ANY, "ifname", "MAC Merge layer state for %s:\n",
+		     nlctx->devname);
+
+	show_bool("pmac-enabled", "pMAC enabled: %s\n",
+		  tb[ETHTOOL_A_MM_PMAC_ENABLED]);
+	show_bool("tx-enabled", "TX enabled: %s\n",
+		  tb[ETHTOOL_A_MM_TX_ENABLED]);
+	show_bool("tx-active", "TX active: %s\n", tb[ETHTOOL_A_MM_TX_ACTIVE]);
+	show_u32("tx-min-frag-size", "TX minimum fragment size: ",
+		 tb[ETHTOOL_A_MM_TX_MIN_FRAG_SIZE]);
+	show_u32("rx-min-frag-size", "RX minimum fragment size: ",
+		 tb[ETHTOOL_A_MM_RX_MIN_FRAG_SIZE]);
+	show_bool("verify-enabled", "Verify enabled: %s\n",
+		  tb[ETHTOOL_A_MM_VERIFY_ENABLED]);
+	show_u32("verify-time", "Verify time: ",
+		 tb[ETHTOOL_A_MM_VERIFY_TIME]);
+	show_u32("max-verify-time", "Max verify time: ",
+		 tb[ETHTOOL_A_MM_MAX_VERIFY_TIME]);
+
+	if (tb[ETHTOOL_A_MM_VERIFY_STATUS]) {
+		u8 val = mnl_attr_get_u8(tb[ETHTOOL_A_MM_VERIFY_STATUS]);
+
+		print_string(PRINT_ANY, "verify-status", "Verification status: %s\n",
+			     mm_verify_state_to_string(val));
+	}
+
+	if (tb[ETHTOOL_A_MM_STATS]) {
+		ret = show_mm_stats(tb[ETHTOOL_A_MM_STATS]);
+		if (ret) {
+			fprintf(stderr, "Failed to print stats: %d\n", ret);
+			goto err;
+		}
+	}
+
+	if (!silent)
+		print_nl();
+
+	close_json_object();
+
+	return MNL_CB_OK;
+
+err:
+	close_json_object();
+	return err_ret;
+}
+
+int nl_get_mm(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_MM_GET, true))
+		return -EOPNOTSUPP;
+	if (ctx->argc > 0) {
+		fprintf(stderr, "ethtool: unexpected parameter '%s'\n",
+			*ctx->argp);
+		return 1;
+	}
+
+	flags = get_stats_flag(nlctx, ETHTOOL_MSG_MM_GET, ETHTOOL_A_MM_HEADER);
+	ret = nlsock_prep_get_request(nlsk, ETHTOOL_MSG_MM_GET,
+				      ETHTOOL_A_MM_HEADER, flags);
+	if (ret)
+		return ret;
+
+	new_json_obj(ctx->json);
+	ret = nlsock_send_get_request(nlsk, mm_reply_cb);
+	delete_json_obj();
+	return ret;
+}
+
+/* MM_SET */
+
+static const struct param_parser mm_set_params[] = {
+	{
+		.arg		= "verify-enabled",
+		.type		= ETHTOOL_A_MM_VERIFY_ENABLED,
+		.handler	= nl_parse_u8bool,
+		.min_argc	= 1,
+	},
+	{
+		.arg		= "verify-time",
+		.type		= ETHTOOL_A_MM_VERIFY_TIME,
+		.handler	= nl_parse_direct_u32,
+		.min_argc	= 1,
+	},
+	{
+		.arg		= "tx-enabled",
+		.type		= ETHTOOL_A_MM_TX_ENABLED,
+		.handler	= nl_parse_u8bool,
+		.min_argc	= 1,
+	},
+	{
+		.arg		= "pmac-enabled",
+		.type		= ETHTOOL_A_MM_PMAC_ENABLED,
+		.handler	= nl_parse_u8bool,
+		.min_argc	= 1,
+	},
+	{
+		.arg		= "tx-min-frag-size",
+		.type		= ETHTOOL_A_MM_TX_MIN_FRAG_SIZE,
+		.handler	= nl_parse_direct_u32,
+		.min_argc	= 1,
+	},
+	{}
+};
+
+int nl_set_mm(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_MM_SET, false))
+		return -EOPNOTSUPP;
+
+	nlctx->cmd = "--set-mm";
+	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_MM_SET,
+		       NLM_F_REQUEST | NLM_F_ACK);
+	if (ret)
+		return ret;
+
+	if (ethnla_fill_header(msgbuff, ETHTOOL_A_MM_HEADER,
+			       ctx->devname, 0))
+		return -EMSGSIZE;
+
+	ret = nl_parser(nlctx, mm_set_params, NULL, PARSER_GROUP_NONE, NULL);
+	if (ret)
+		return ret;
+
+	ret = nlsock_sendmsg(nlsk, NULL);
+	if (ret < 0)
+		return ret;
+
+	ret = nlsock_process_reply(nlsk, nomsg_reply_cb, nlctx);
+	if (ret)
+		return nlctx->exit_code;
+
+	return 0;
+}