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Date: Mon, 30 Jul 2018 14:57:14 +0200 (CEST)
From: Michal Kubecek <mkubecek@...e.cz>
To: netdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
"John W. Linville" <linville@...driver.com>
Subject: [RFC PATCH ethtool v2 18/23] netlink: add netlink handler for
scoalesce (-C)
Implement "ethtool -C <dev>" subcommand using netlink interface command
ETHNL_CMD_SET_PARAMS.
Signed-off-by: Michal Kubecek <mkubecek@...e.cz>
---
ethtool.c | 3 +-
netlink/extapi.h | 1 +
netlink/params.c | 182 +++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 185 insertions(+), 1 deletion(-)
diff --git a/ethtool.c b/ethtool.c
index 2c838b7c7f53..8d755b3933a9 100644
--- a/ethtool.c
+++ b/ethtool.c
@@ -4885,6 +4885,7 @@ static int show_usage(struct cmd_context *ctx);
#define nl_gchannels NULL
#define nl_geee NULL
#define nl_gfec NULL
+#define nl_scoalesce NULL
#endif
static const struct option {
@@ -4917,7 +4918,7 @@ static const struct option {
" [ tx on|off ]\n" },
{ "-c|--show-coalesce", 1, do_gcoalesce, nl_gcoalesce,
"Show coalesce options" },
- { "-C|--coalesce", 1, do_scoalesce, NULL,
+ { "-C|--coalesce", 1, do_scoalesce, nl_scoalesce,
"Set coalesce options",
" [adaptive-rx on|off]\n"
" [adaptive-tx on|off]\n"
diff --git a/netlink/extapi.h b/netlink/extapi.h
index b40db721a4c5..2379309f084e 100644
--- a/netlink/extapi.h
+++ b/netlink/extapi.h
@@ -24,6 +24,7 @@ int nl_gpause(struct cmd_context *ctx);
int nl_gchannels(struct cmd_context *ctx);
int nl_geee(struct cmd_context *ctx);
int nl_gfec(struct cmd_context *ctx);
+int nl_scoalesce(struct cmd_context *ctx);
int nl_monitor(struct cmd_context *ctx);
void monitor_usage();
diff --git a/netlink/params.c b/netlink/params.c
index c187ca0b37c5..b86922b8d215 100644
--- a/netlink/params.c
+++ b/netlink/params.c
@@ -328,3 +328,185 @@ int nl_gfec(struct cmd_context *ctx)
{
return params_request(ctx, ETH_PARAMS_IM_FEC);
}
+
+/* SET_PARAMS */
+
+static int nl_set_param(struct cmd_context *ctx, const char *opt,
+ const struct param_parser *params, u16 nest_type,
+ u16 max_type)
+{
+ struct nl_context *nlctx = ctx->nlctx;
+ struct nlattr *nest;
+ int ret;
+
+ nlctx->cmd = opt;
+ nlctx->argp = ctx->argp;
+ nlctx->argc = ctx->argc;
+ ret = msg_init(nlctx, ETHNL_CMD_SET_PARAMS, NLM_F_REQUEST | NLM_F_ACK);
+ if (ret < 0)
+ return 2;
+ if (ethnla_put_dev(nlctx, ETHA_PARAMS_DEV, ctx->devname))
+ return -EMSGSIZE;
+
+ nest = ethnla_nest_start(nlctx, nest_type);
+ if (!nest) {
+ fprintf(stderr, "ethtool(%s): failed to allocate message\n",
+ opt);
+ return 76;
+ }
+
+ ret = nl_parser(ctx, params, max_type);
+ if (ret < 0)
+ return 2;
+ mnl_attr_nest_end(nlctx->nlhdr, nest);
+
+ ret = ethnl_sendmsg(nlctx);
+ if (ret < 0)
+ return 75;
+ ret = ethnl_process_reply(nlctx, nomsg_reply_cb);
+ if (ret == 0)
+ return 0;
+ return nlctx->exit_code ?: 81;
+}
+
+static const struct param_parser scoalesce_params[] = {
+ {
+ .arg = "adaptive-rx",
+ .type = ETHA_COALESCE_RX_USE_ADAPTIVE,
+ .handler = nl_parse_bool,
+ .min_argc = 1,
+ },
+ {
+ .arg = "adaptive-tx",
+ .type = ETHA_COALESCE_TX_USE_ADAPTIVE,
+ .handler = nl_parse_bool,
+ .min_argc = 1,
+ },
+ {
+ .arg = "sample-interval",
+ .type = ETHA_COALESCE_RATE_SAMPLE_INTERVAL,
+ .handler = nl_parse_direct_u32,
+ .min_argc = 1,
+ },
+ {
+ .arg = "stats-block-usecs",
+ .type = ETHA_COALESCE_STATS_BLOCK_USECS,
+ .handler = nl_parse_direct_u32,
+ .min_argc = 1,
+ },
+ {
+ .arg = "pkt-rate-low",
+ .type = ETHA_COALESCE_PKT_RATE_LOW,
+ .handler = nl_parse_direct_u32,
+ .min_argc = 1,
+ },
+ {
+ .arg = "pkt-rate-high",
+ .type = ETHA_COALESCE_PKT_RATE_HIGH,
+ .handler = nl_parse_direct_u32,
+ .min_argc = 1,
+ },
+ {
+ .arg = "rx-usecs",
+ .type = ETHA_COALESCE_RX_USECS,
+ .handler = nl_parse_direct_u32,
+ .min_argc = 1,
+ },
+ {
+ .arg = "rx-frames",
+ .type = ETHA_COALESCE_RX_MAXFRM,
+ .handler = nl_parse_direct_u32,
+ .min_argc = 1,
+ },
+ {
+ .arg = "rx-usecs-irq",
+ .type = ETHA_COALESCE_RX_USECS_IRQ,
+ .handler = nl_parse_direct_u32,
+ .min_argc = 1,
+ },
+ {
+ .arg = "rx-frames-irq",
+ .type = ETHA_COALESCE_RX_MAXFRM_IRQ,
+ .handler = nl_parse_direct_u32,
+ .min_argc = 1,
+ },
+ {
+ .arg = "tx-usecs",
+ .type = ETHA_COALESCE_TX_USECS,
+ .handler = nl_parse_direct_u32,
+ .min_argc = 1,
+ },
+ {
+ .arg = "tx-frames",
+ .type = ETHA_COALESCE_TX_MAXFRM,
+ .handler = nl_parse_direct_u32,
+ .min_argc = 1,
+ },
+ {
+ .arg = "tx-usecs-irq",
+ .type = ETHA_COALESCE_TX_USECS_IRQ,
+ .handler = nl_parse_direct_u32,
+ .min_argc = 1,
+ },
+ {
+ .arg = "tx-frames-irq",
+ .type = ETHA_COALESCE_TX_MAXFRM_IRQ,
+ .handler = nl_parse_direct_u32,
+ .min_argc = 1,
+ },
+ {
+ .arg = "rx-usecs-low",
+ .type = ETHA_COALESCE_RX_USECS_LOW,
+ .handler = nl_parse_direct_u32,
+ .min_argc = 1,
+ },
+ {
+ .arg = "rx-frames-low",
+ .type = ETHA_COALESCE_RX_MAXFRM_LOW,
+ .handler = nl_parse_direct_u32,
+ .min_argc = 1,
+ },
+ {
+ .arg = "tx-usecs-low",
+ .type = ETHA_COALESCE_TX_USECS_LOW,
+ .handler = nl_parse_direct_u32,
+ .min_argc = 1,
+ },
+ {
+ .arg = "tx-frames-low",
+ .type = ETHA_COALESCE_TX_MAXFRM_LOW,
+ .handler = nl_parse_direct_u32,
+ .min_argc = 1,
+ },
+ {
+ .arg = "rx-usecs-high",
+ .type = ETHA_COALESCE_RX_USECS_HIGH,
+ .handler = nl_parse_direct_u32,
+ .min_argc = 1,
+ },
+ {
+ .arg = "rx-frames-high",
+ .type = ETHA_COALESCE_RX_MAXFRM_HIGH,
+ .handler = nl_parse_direct_u32,
+ .min_argc = 1,
+ },
+ {
+ .arg = "tx-usecs-high",
+ .type = ETHA_COALESCE_TX_USECS_HIGH,
+ .handler = nl_parse_direct_u32,
+ .min_argc = 1,
+ },
+ {
+ .arg = "tx-frames-high",
+ .type = ETHA_COALESCE_TX_MAXFRM_HIGH,
+ .handler = nl_parse_direct_u32,
+ .min_argc = 1,
+ },
+ {}
+};
+
+int nl_scoalesce(struct cmd_context *ctx)
+{
+ return nl_set_param(ctx, "-C", scoalesce_params, ETHA_PARAMS_COALESCE,
+ ETHA_COALESCE_MAX);
+}
--
2.18.0
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