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authorYufeng Mo <moyufeng@huawei.com>2021-08-20 15:35:17 +0800
committerJakub Kicinski <kuba@kernel.org>2021-08-24 07:38:28 -0700
commit029ee6b14356b94120bedb852dcdaefc0a282cf1 (patch)
treeef86287ef5e0feeea57ddcf852eb22d302eb79a5 /net/ethtool
parent95d1d2490c278ea316a4350f4c24818275fb989c (diff)
downloadlinux-029ee6b14356b94120bedb852dcdaefc0a282cf1.tar.bz2
ethtool: add two coalesce attributes for CQE mode
Currently, there are many drivers who support CQE mode configuration, some configure it as a fixed when initialized, some provide an interface to change it by ethtool private flags. In order to make it more generic, add two new 'ETHTOOL_A_COALESCE_USE_CQE_TX' and 'ETHTOOL_A_COALESCE_USE_CQE_RX' coalesce attributes, then these parameters can be accessed by ethtool netlink coalesce uAPI. Also add an new structure kernel_ethtool_coalesce, then the new parameter can be added into this struct. Signed-off-by: Yufeng Mo <moyufeng@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ethtool')
-rw-r--r--net/ethtool/coalesce.c19
-rw-r--r--net/ethtool/netlink.h2
2 files changed, 18 insertions, 3 deletions
diff --git a/net/ethtool/coalesce.c b/net/ethtool/coalesce.c
index 1d6bc132aa4d..e6bc53634e68 100644
--- a/net/ethtool/coalesce.c
+++ b/net/ethtool/coalesce.c
@@ -10,6 +10,7 @@ struct coalesce_req_info {
struct coalesce_reply_data {
struct ethnl_reply_data base;
struct ethtool_coalesce coalesce;
+ struct kernel_ethtool_coalesce kernel_coalesce;
u32 supported_params;
};
@@ -100,7 +101,9 @@ static int coalesce_reply_size(const struct ethnl_req_info *req_base,
nla_total_size(sizeof(u32)) + /* _RX_MAX_FRAMES_HIGH */
nla_total_size(sizeof(u32)) + /* _TX_USECS_HIGH */
nla_total_size(sizeof(u32)) + /* _TX_MAX_FRAMES_HIGH */
- nla_total_size(sizeof(u32)); /* _RATE_SAMPLE_INTERVAL */
+ nla_total_size(sizeof(u32)) + /* _RATE_SAMPLE_INTERVAL */
+ nla_total_size(sizeof(u8)) + /* _USE_CQE_MODE_TX */
+ nla_total_size(sizeof(u8)); /* _USE_CQE_MODE_RX */
}
static bool coalesce_put_u32(struct sk_buff *skb, u16 attr_type, u32 val,
@@ -124,6 +127,7 @@ static int coalesce_fill_reply(struct sk_buff *skb,
const struct ethnl_reply_data *reply_base)
{
const struct coalesce_reply_data *data = COALESCE_REPDATA(reply_base);
+ const struct kernel_ethtool_coalesce *kcoal = &data->kernel_coalesce;
const struct ethtool_coalesce *coal = &data->coalesce;
u32 supported = data->supported_params;
@@ -170,7 +174,11 @@ static int coalesce_fill_reply(struct sk_buff *skb,
coalesce_put_u32(skb, ETHTOOL_A_COALESCE_TX_MAX_FRAMES_HIGH,
coal->tx_max_coalesced_frames_high, supported) ||
coalesce_put_u32(skb, ETHTOOL_A_COALESCE_RATE_SAMPLE_INTERVAL,
- coal->rate_sample_interval, supported))
+ coal->rate_sample_interval, supported) ||
+ coalesce_put_bool(skb, ETHTOOL_A_COALESCE_USE_CQE_MODE_TX,
+ kcoal->use_cqe_mode_tx, supported) ||
+ coalesce_put_bool(skb, ETHTOOL_A_COALESCE_USE_CQE_MODE_RX,
+ kcoal->use_cqe_mode_rx, supported))
return -EMSGSIZE;
return 0;
@@ -215,10 +223,13 @@ const struct nla_policy ethnl_coalesce_set_policy[] = {
[ETHTOOL_A_COALESCE_TX_USECS_HIGH] = { .type = NLA_U32 },
[ETHTOOL_A_COALESCE_TX_MAX_FRAMES_HIGH] = { .type = NLA_U32 },
[ETHTOOL_A_COALESCE_RATE_SAMPLE_INTERVAL] = { .type = NLA_U32 },
+ [ETHTOOL_A_COALESCE_USE_CQE_MODE_TX] = NLA_POLICY_MAX(NLA_U8, 1),
+ [ETHTOOL_A_COALESCE_USE_CQE_MODE_RX] = NLA_POLICY_MAX(NLA_U8, 1),
};
int ethnl_set_coalesce(struct sk_buff *skb, struct genl_info *info)
{
+ struct kernel_ethtool_coalesce kernel_coalesce = {};
struct ethtool_coalesce coalesce = {};
struct ethnl_req_info req_info = {};
struct nlattr **tb = info->attrs;
@@ -303,6 +314,10 @@ int ethnl_set_coalesce(struct sk_buff *skb, struct genl_info *info)
tb[ETHTOOL_A_COALESCE_TX_MAX_FRAMES_HIGH], &mod);
ethnl_update_u32(&coalesce.rate_sample_interval,
tb[ETHTOOL_A_COALESCE_RATE_SAMPLE_INTERVAL], &mod);
+ ethnl_update_u8(&kernel_coalesce.use_cqe_mode_tx,
+ tb[ETHTOOL_A_COALESCE_USE_CQE_MODE_TX], &mod);
+ ethnl_update_u8(&kernel_coalesce.use_cqe_mode_rx,
+ tb[ETHTOOL_A_COALESCE_USE_CQE_MODE_RX], &mod);
ret = 0;
if (!mod)
goto out_ops;
diff --git a/net/ethtool/netlink.h b/net/ethtool/netlink.h
index 077aac3929a8..e8987e28036f 100644
--- a/net/ethtool/netlink.h
+++ b/net/ethtool/netlink.h
@@ -359,7 +359,7 @@ extern const struct nla_policy ethnl_rings_set_policy[ETHTOOL_A_RINGS_TX + 1];
extern const struct nla_policy ethnl_channels_get_policy[ETHTOOL_A_CHANNELS_HEADER + 1];
extern const struct nla_policy ethnl_channels_set_policy[ETHTOOL_A_CHANNELS_COMBINED_COUNT + 1];
extern const struct nla_policy ethnl_coalesce_get_policy[ETHTOOL_A_COALESCE_HEADER + 1];
-extern const struct nla_policy ethnl_coalesce_set_policy[ETHTOOL_A_COALESCE_RATE_SAMPLE_INTERVAL + 1];
+extern const struct nla_policy ethnl_coalesce_set_policy[ETHTOOL_A_COALESCE_MAX + 1];
extern const struct nla_policy ethnl_pause_get_policy[ETHTOOL_A_PAUSE_HEADER + 1];
extern const struct nla_policy ethnl_pause_set_policy[ETHTOOL_A_PAUSE_TX + 1];
extern const struct nla_policy ethnl_eee_get_policy[ETHTOOL_A_EEE_HEADER + 1];