summaryrefslogtreecommitdiffstats
path: root/net/ethtool
diff options
context:
space:
mode:
Diffstat (limited to 'net/ethtool')
-rw-r--r--net/ethtool/Makefile4
-rw-r--r--net/ethtool/mm.c255
-rw-r--r--net/ethtool/netlink.c19
-rw-r--r--net/ethtool/netlink.h4
4 files changed, 280 insertions, 2 deletions
diff --git a/net/ethtool/Makefile b/net/ethtool/Makefile
index 563864c1bf5a..504f954a1b28 100644
--- a/net/ethtool/Makefile
+++ b/net/ethtool/Makefile
@@ -7,5 +7,5 @@ obj-$(CONFIG_ETHTOOL_NETLINK) += ethtool_nl.o
ethtool_nl-y := netlink.o bitset.o strset.o linkinfo.o linkmodes.o rss.o \
linkstate.o debug.o wol.o features.o privflags.o rings.o \
channels.o coalesce.o pause.o eee.o tsinfo.o cabletest.o \
- tunnels.o fec.o eeprom.o stats.o phc_vclocks.o module.o \
- pse-pd.o plca.o
+ tunnels.o fec.o eeprom.o stats.o phc_vclocks.o mm.o \
+ module.o pse-pd.o plca.o mm.o
diff --git a/net/ethtool/mm.c b/net/ethtool/mm.c
new file mode 100644
index 000000000000..76b209ad53d2
--- /dev/null
+++ b/net/ethtool/mm.c
@@ -0,0 +1,255 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022-2023 NXP
+ */
+#include "common.h"
+#include "netlink.h"
+
+struct mm_req_info {
+ struct ethnl_req_info base;
+};
+
+struct mm_reply_data {
+ struct ethnl_reply_data base;
+ struct ethtool_mm_state state;
+ struct ethtool_mm_stats stats;
+};
+
+#define MM_REPDATA(__reply_base) \
+ container_of(__reply_base, struct mm_reply_data, base)
+
+#define ETHTOOL_MM_STAT_CNT \
+ (__ETHTOOL_A_MM_STAT_CNT - (ETHTOOL_A_MM_STAT_PAD + 1))
+
+const struct nla_policy ethnl_mm_get_policy[ETHTOOL_A_MM_HEADER + 1] = {
+ [ETHTOOL_A_MM_HEADER] = NLA_POLICY_NESTED(ethnl_header_policy_stats),
+};
+
+static int mm_prepare_data(const struct ethnl_req_info *req_base,
+ struct ethnl_reply_data *reply_base,
+ struct genl_info *info)
+{
+ struct mm_reply_data *data = MM_REPDATA(reply_base);
+ struct net_device *dev = reply_base->dev;
+ const struct ethtool_ops *ops;
+ int ret;
+
+ ops = dev->ethtool_ops;
+
+ if (!ops->get_mm)
+ return -EOPNOTSUPP;
+
+ ethtool_stats_init((u64 *)&data->stats,
+ sizeof(data->stats) / sizeof(u64));
+
+ ret = ethnl_ops_begin(dev);
+ if (ret < 0)
+ return ret;
+
+ ret = ops->get_mm(dev, &data->state);
+ if (ret)
+ goto out_complete;
+
+ if (ops->get_mm_stats && (req_base->flags & ETHTOOL_FLAG_STATS))
+ ops->get_mm_stats(dev, &data->stats);
+
+out_complete:
+ ethnl_ops_complete(dev);
+
+ return 0;
+}
+
+static int mm_reply_size(const struct ethnl_req_info *req_base,
+ const struct ethnl_reply_data *reply_base)
+{
+ int len = 0;
+
+ len += nla_total_size(sizeof(u8)); /* _MM_PMAC_ENABLED */
+ len += nla_total_size(sizeof(u8)); /* _MM_TX_ENABLED */
+ len += nla_total_size(sizeof(u8)); /* _MM_TX_ACTIVE */
+ len += nla_total_size(sizeof(u8)); /* _MM_VERIFY_ENABLED */
+ len += nla_total_size(sizeof(u8)); /* _MM_VERIFY_STATUS */
+ len += nla_total_size(sizeof(u32)); /* _MM_VERIFY_TIME */
+ len += nla_total_size(sizeof(u32)); /* _MM_MAX_VERIFY_TIME */
+ len += nla_total_size(sizeof(u32)); /* _MM_TX_MIN_FRAG_SIZE */
+ len += nla_total_size(sizeof(u32)); /* _MM_RX_MIN_FRAG_SIZE */
+
+ if (req_base->flags & ETHTOOL_FLAG_STATS)
+ len += nla_total_size(0) + /* _MM_STATS */
+ nla_total_size_64bit(sizeof(u64)) * ETHTOOL_MM_STAT_CNT;
+
+ return len;
+}
+
+static int mm_put_stat(struct sk_buff *skb, u64 val, u16 attrtype)
+{
+ if (val == ETHTOOL_STAT_NOT_SET)
+ return 0;
+ if (nla_put_u64_64bit(skb, attrtype, val, ETHTOOL_A_MM_STAT_PAD))
+ return -EMSGSIZE;
+ return 0;
+}
+
+static int mm_put_stats(struct sk_buff *skb,
+ const struct ethtool_mm_stats *stats)
+{
+ struct nlattr *nest;
+
+ nest = nla_nest_start(skb, ETHTOOL_A_MM_STATS);
+ if (!nest)
+ return -EMSGSIZE;
+
+ if (mm_put_stat(skb, stats->MACMergeFrameAssErrorCount,
+ ETHTOOL_A_MM_STAT_REASSEMBLY_ERRORS) ||
+ mm_put_stat(skb, stats->MACMergeFrameSmdErrorCount,
+ ETHTOOL_A_MM_STAT_SMD_ERRORS) ||
+ mm_put_stat(skb, stats->MACMergeFrameAssOkCount,
+ ETHTOOL_A_MM_STAT_REASSEMBLY_OK) ||
+ mm_put_stat(skb, stats->MACMergeFragCountRx,
+ ETHTOOL_A_MM_STAT_RX_FRAG_COUNT) ||
+ mm_put_stat(skb, stats->MACMergeFragCountTx,
+ ETHTOOL_A_MM_STAT_TX_FRAG_COUNT) ||
+ mm_put_stat(skb, stats->MACMergeHoldCount,
+ ETHTOOL_A_MM_STAT_HOLD_COUNT))
+ goto err_cancel;
+
+ nla_nest_end(skb, nest);
+ return 0;
+
+err_cancel:
+ nla_nest_cancel(skb, nest);
+ return -EMSGSIZE;
+}
+
+static int mm_fill_reply(struct sk_buff *skb,
+ const struct ethnl_req_info *req_base,
+ const struct ethnl_reply_data *reply_base)
+{
+ const struct mm_reply_data *data = MM_REPDATA(reply_base);
+ const struct ethtool_mm_state *state = &data->state;
+
+ if (nla_put_u8(skb, ETHTOOL_A_MM_TX_ENABLED, state->tx_enabled) ||
+ nla_put_u8(skb, ETHTOOL_A_MM_TX_ACTIVE, state->tx_active) ||
+ nla_put_u8(skb, ETHTOOL_A_MM_PMAC_ENABLED, state->pmac_enabled) ||
+ nla_put_u8(skb, ETHTOOL_A_MM_VERIFY_ENABLED, state->verify_enabled) ||
+ nla_put_u8(skb, ETHTOOL_A_MM_VERIFY_STATUS, state->verify_status) ||
+ nla_put_u32(skb, ETHTOOL_A_MM_VERIFY_TIME, state->verify_time) ||
+ nla_put_u32(skb, ETHTOOL_A_MM_MAX_VERIFY_TIME, state->max_verify_time) ||
+ nla_put_u32(skb, ETHTOOL_A_MM_TX_MIN_FRAG_SIZE, state->tx_min_frag_size) ||
+ nla_put_u32(skb, ETHTOOL_A_MM_RX_MIN_FRAG_SIZE, state->rx_min_frag_size))
+ return -EMSGSIZE;
+
+ if (req_base->flags & ETHTOOL_FLAG_STATS &&
+ mm_put_stats(skb, &data->stats))
+ return -EMSGSIZE;
+
+ return 0;
+}
+
+const struct ethnl_request_ops ethnl_mm_request_ops = {
+ .request_cmd = ETHTOOL_MSG_MM_GET,
+ .reply_cmd = ETHTOOL_MSG_MM_GET_REPLY,
+ .hdr_attr = ETHTOOL_A_MM_HEADER,
+ .req_info_size = sizeof(struct mm_req_info),
+ .reply_data_size = sizeof(struct mm_reply_data),
+
+ .prepare_data = mm_prepare_data,
+ .reply_size = mm_reply_size,
+ .fill_reply = mm_fill_reply,
+};
+
+const struct nla_policy ethnl_mm_set_policy[ETHTOOL_A_MM_MAX + 1] = {
+ [ETHTOOL_A_MM_HEADER] = NLA_POLICY_NESTED(ethnl_header_policy),
+ [ETHTOOL_A_MM_VERIFY_ENABLED] = NLA_POLICY_MAX(NLA_U8, 1),
+ [ETHTOOL_A_MM_VERIFY_TIME] = NLA_POLICY_RANGE(NLA_U32, 1, 128),
+ [ETHTOOL_A_MM_TX_ENABLED] = NLA_POLICY_MAX(NLA_U8, 1),
+ [ETHTOOL_A_MM_PMAC_ENABLED] = NLA_POLICY_MAX(NLA_U8, 1),
+ [ETHTOOL_A_MM_TX_MIN_FRAG_SIZE] = NLA_POLICY_RANGE(NLA_U32, 60, 252),
+};
+
+static void mm_state_to_cfg(const struct ethtool_mm_state *state,
+ struct ethtool_mm_cfg *cfg)
+{
+ /* We could also compare state->verify_status against
+ * ETHTOOL_MM_VERIFY_STATUS_DISABLED, but state->verify_enabled
+ * is more like an administrative state which should be seen in
+ * ETHTOOL_MSG_MM_GET replies. For example, a port with verification
+ * disabled might be in the ETHTOOL_MM_VERIFY_STATUS_INITIAL
+ * if it's down.
+ */
+ cfg->verify_enabled = state->verify_enabled;
+ cfg->verify_time = state->verify_time;
+ cfg->tx_enabled = state->tx_enabled;
+ cfg->pmac_enabled = state->pmac_enabled;
+ cfg->tx_min_frag_size = state->tx_min_frag_size;
+}
+
+int ethnl_set_mm(struct sk_buff *skb, struct genl_info *info)
+{
+ struct netlink_ext_ack *extack = info->extack;
+ struct ethnl_req_info req_info = {};
+ struct ethtool_mm_state state = {};
+ struct nlattr **tb = info->attrs;
+ struct ethtool_mm_cfg cfg = {};
+ const struct ethtool_ops *ops;
+ struct net_device *dev;
+ bool mod = false;
+ int ret;
+
+ ret = ethnl_parse_header_dev_get(&req_info, tb[ETHTOOL_A_MM_HEADER],
+ genl_info_net(info), extack, true);
+ if (ret)
+ return ret;
+
+ dev = req_info.dev;
+ ops = dev->ethtool_ops;
+
+ if (!ops->get_mm || !ops->set_mm) {
+ ret = -EOPNOTSUPP;
+ goto out_dev_put;
+ }
+
+ rtnl_lock();
+ ret = ethnl_ops_begin(dev);
+ if (ret < 0)
+ goto out_rtnl_unlock;
+
+ ret = ops->get_mm(dev, &state);
+ if (ret)
+ goto out_complete;
+
+ mm_state_to_cfg(&state, &cfg);
+
+ ethnl_update_bool(&cfg.verify_enabled, tb[ETHTOOL_A_MM_VERIFY_ENABLED],
+ &mod);
+ ethnl_update_u32(&cfg.verify_time, tb[ETHTOOL_A_MM_VERIFY_TIME], &mod);
+ ethnl_update_bool(&cfg.tx_enabled, tb[ETHTOOL_A_MM_TX_ENABLED], &mod);
+ ethnl_update_bool(&cfg.pmac_enabled, tb[ETHTOOL_A_MM_PMAC_ENABLED],
+ &mod);
+ ethnl_update_u32(&cfg.tx_min_frag_size,
+ tb[ETHTOOL_A_MM_TX_MIN_FRAG_SIZE], &mod);
+
+ if (!mod)
+ goto out_complete;
+
+ if (cfg.verify_time > state.max_verify_time) {
+ NL_SET_ERR_MSG_ATTR(extack, tb[ETHTOOL_A_MM_VERIFY_TIME],
+ "verifyTime exceeds device maximum");
+ ret = -ERANGE;
+ goto out_complete;
+ }
+
+ ret = ops->set_mm(dev, &cfg, extack);
+ if (ret)
+ goto out_complete;
+
+ ethtool_notify(dev, ETHTOOL_MSG_MM_NTF, NULL);
+
+out_complete:
+ ethnl_ops_complete(dev);
+out_rtnl_unlock:
+ rtnl_unlock();
+out_dev_put:
+ ethnl_parse_header_dev_put(&req_info);
+ return ret;
+}
diff --git a/net/ethtool/netlink.c b/net/ethtool/netlink.c
index 9f924875bba9..6412c4dc663d 100644
--- a/net/ethtool/netlink.c
+++ b/net/ethtool/netlink.c
@@ -290,6 +290,7 @@ ethnl_default_requests[__ETHTOOL_MSG_USER_CNT] = {
[ETHTOOL_MSG_RSS_GET] = &ethnl_rss_request_ops,
[ETHTOOL_MSG_PLCA_GET_CFG] = &ethnl_plca_cfg_request_ops,
[ETHTOOL_MSG_PLCA_GET_STATUS] = &ethnl_plca_status_request_ops,
+ [ETHTOOL_MSG_MM_GET] = &ethnl_mm_request_ops,
};
static struct ethnl_dump_ctx *ethnl_dump_context(struct netlink_callback *cb)
@@ -606,6 +607,7 @@ ethnl_default_notify_ops[ETHTOOL_MSG_KERNEL_MAX + 1] = {
[ETHTOOL_MSG_FEC_NTF] = &ethnl_fec_request_ops,
[ETHTOOL_MSG_MODULE_NTF] = &ethnl_module_request_ops,
[ETHTOOL_MSG_PLCA_NTF] = &ethnl_plca_cfg_request_ops,
+ [ETHTOOL_MSG_MM_NTF] = &ethnl_mm_request_ops,
};
/* default notification handler */
@@ -700,6 +702,7 @@ static const ethnl_notify_handler_t ethnl_notify_handlers[] = {
[ETHTOOL_MSG_FEC_NTF] = ethnl_default_notify,
[ETHTOOL_MSG_MODULE_NTF] = ethnl_default_notify,
[ETHTOOL_MSG_PLCA_NTF] = ethnl_default_notify,
+ [ETHTOOL_MSG_MM_NTF] = ethnl_default_notify,
};
void ethtool_notify(struct net_device *dev, unsigned int cmd, const void *data)
@@ -1076,6 +1079,22 @@ static const struct genl_ops ethtool_genl_ops[] = {
.policy = ethnl_plca_get_status_policy,
.maxattr = ARRAY_SIZE(ethnl_plca_get_status_policy) - 1,
},
+ {
+ .cmd = ETHTOOL_MSG_MM_GET,
+ .doit = ethnl_default_doit,
+ .start = ethnl_default_start,
+ .dumpit = ethnl_default_dumpit,
+ .done = ethnl_default_done,
+ .policy = ethnl_mm_get_policy,
+ .maxattr = ARRAY_SIZE(ethnl_mm_get_policy) - 1,
+ },
+ {
+ .cmd = ETHTOOL_MSG_MM_SET,
+ .flags = GENL_UNS_ADMIN_PERM,
+ .doit = ethnl_set_mm,
+ .policy = ethnl_mm_set_policy,
+ .maxattr = ARRAY_SIZE(ethnl_mm_set_policy) - 1,
+ },
};
static const struct genl_multicast_group ethtool_nl_mcgrps[] = {
diff --git a/net/ethtool/netlink.h b/net/ethtool/netlink.h
index f271266f6e28..657b0c80620c 100644
--- a/net/ethtool/netlink.h
+++ b/net/ethtool/netlink.h
@@ -349,6 +349,7 @@ extern const struct ethnl_request_ops ethnl_pse_request_ops;
extern const struct ethnl_request_ops ethnl_rss_request_ops;
extern const struct ethnl_request_ops ethnl_plca_cfg_request_ops;
extern const struct ethnl_request_ops ethnl_plca_status_request_ops;
+extern const struct ethnl_request_ops ethnl_mm_request_ops;
extern const struct nla_policy ethnl_header_policy[ETHTOOL_A_HEADER_FLAGS + 1];
extern const struct nla_policy ethnl_header_policy_stats[ETHTOOL_A_HEADER_FLAGS + 1];
@@ -393,6 +394,8 @@ extern const struct nla_policy ethnl_rss_get_policy[ETHTOOL_A_RSS_CONTEXT + 1];
extern const struct nla_policy ethnl_plca_get_cfg_policy[ETHTOOL_A_PLCA_HEADER + 1];
extern const struct nla_policy ethnl_plca_set_cfg_policy[ETHTOOL_A_PLCA_MAX + 1];
extern const struct nla_policy ethnl_plca_get_status_policy[ETHTOOL_A_PLCA_HEADER + 1];
+extern const struct nla_policy ethnl_mm_get_policy[ETHTOOL_A_MM_HEADER + 1];
+extern const struct nla_policy ethnl_mm_set_policy[ETHTOOL_A_MM_MAX + 1];
int ethnl_set_linkinfo(struct sk_buff *skb, struct genl_info *info);
int ethnl_set_linkmodes(struct sk_buff *skb, struct genl_info *info);
@@ -414,6 +417,7 @@ int ethnl_set_fec(struct sk_buff *skb, struct genl_info *info);
int ethnl_set_module(struct sk_buff *skb, struct genl_info *info);
int ethnl_set_pse(struct sk_buff *skb, struct genl_info *info);
int ethnl_set_plca_cfg(struct sk_buff *skb, struct genl_info *info);
+int ethnl_set_mm(struct sk_buff *skb, struct genl_info *info);
extern const char stats_std_names[__ETHTOOL_STATS_CNT][ETH_GSTRING_LEN];
extern const char stats_eth_phy_names[__ETHTOOL_A_STATS_ETH_PHY_CNT][ETH_GSTRING_LEN];
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-30 02:53:16 +0000