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Subject[PATCH net-next 06/11] net: hns3: add ethtool priv-flag for DIM
Date
Add a control private flag in ethtool for enable/disable
DIM feature.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
drivers/net/ethernet/hisilicon/hns3/hnae3.h | 7 +++
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 1 +
drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c | 71 ++++++++++++++++++++++
3 files changed, 79 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index f9d4d23..18b3e43 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -716,6 +716,11 @@ struct hnae3_roce_private_info {
#define HNAE3_UPE (HNAE3_USER_UPE | HNAE3_OVERFLOW_UPE)
#define HNAE3_MPE (HNAE3_USER_MPE | HNAE3_OVERFLOW_MPE)

+enum hnae3_pflag {
+ HNAE3_PFLAG_DIM_ENABLE,
+ HNAE3_PFLAG_MAX
+};
+
struct hnae3_handle {
struct hnae3_client *client;
struct pci_dev *pdev;
@@ -738,6 +743,8 @@ struct hnae3_handle {

/* Network interface message level enabled bits */
u32 msg_enable;
+
+ unsigned long priv_flags;
};

#define hnae3_set_field(origin, mask, shift, val) \
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 9e895b9..a567557 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -4246,6 +4246,7 @@ static int hns3_client_init(struct hnae3_handle *handle)

set_bit(HNS3_NIC_STATE_INITED, &priv->state);
set_bit(HNS3_NIC_STATE_DIM_ENABLE, &priv->state);
+ handle->priv_flags |= BIT(HNAE3_PFLAG_DIM_ENABLE);

if (netif_msg_drv(handle))
hns3_info_show(priv);
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
index 30ffaaf..427b72c 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
@@ -18,6 +18,11 @@ struct hns3_sfp_type {
u8 ext_type;
};

+struct hns3_pflag_desc {
+ char name[ETH_GSTRING_LEN];
+ void (*handler)(struct net_device *netdev, bool enable);
+};
+
/* tqp related stats */
#define HNS3_TQP_STAT(_string, _member) { \
.stats_string = _string, \
@@ -59,6 +64,8 @@ static const struct hns3_stats hns3_rxq_stats[] = {
HNS3_TQP_STAT("non_reuse_pg", non_reuse_pg),
};

+#define HNS3_PRIV_FLAGS_LEN ARRAY_SIZE(hns3_priv_flags)
+
#define HNS3_RXQ_STATS_COUNT ARRAY_SIZE(hns3_rxq_stats)

#define HNS3_TQP_STATS_COUNT (HNS3_TXQ_STATS_COUNT + HNS3_RXQ_STATS_COUNT)
@@ -394,6 +401,26 @@ static void hns3_self_test(struct net_device *ndev,
netif_dbg(h, drv, ndev, "self test end\n");
}

+static void hns3_update_state(struct net_device *netdev,
+ enum hns3_nic_state state, bool enable)
+{
+ struct hns3_nic_priv *priv = netdev_priv(netdev);
+
+ if (enable)
+ set_bit(state, &priv->state);
+ else
+ clear_bit(state, &priv->state);
+}
+
+static void hns3_update_dim_state(struct net_device *netdev, bool enable)
+{
+ hns3_update_state(netdev, HNS3_NIC_STATE_DIM_ENABLE, enable);
+}
+
+static const struct hns3_pflag_desc hns3_priv_flags[HNAE3_PFLAG_MAX] = {
+ { "dim_enable", hns3_update_dim_state },
+};
+
static int hns3_get_sset_count(struct net_device *netdev, int stringset)
{
struct hnae3_handle *h = hns3_get_handle(netdev);
@@ -410,6 +437,9 @@ static int hns3_get_sset_count(struct net_device *netdev, int stringset)
case ETH_SS_TEST:
return ops->get_sset_count(h, stringset);

+ case ETH_SS_PRIV_FLAGS:
+ return HNAE3_PFLAG_MAX;
+
default:
return -EOPNOTSUPP;
}
@@ -463,6 +493,7 @@ static void hns3_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
struct hnae3_handle *h = hns3_get_handle(netdev);
const struct hnae3_ae_ops *ops = h->ae_algo->ops;
char *buff = (char *)data;
+ int i;

if (!ops->get_strings)
return;
@@ -475,6 +506,13 @@ static void hns3_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
case ETH_SS_TEST:
ops->get_strings(h, stringset, data);
break;
+ case ETH_SS_PRIV_FLAGS:
+ for (i = 0; i < HNS3_PRIV_FLAGS_LEN; i++) {
+ snprintf(buff, ETH_GSTRING_LEN, "%s",
+ hns3_priv_flags[i].name);
+ buff += ETH_GSTRING_LEN;
+ }
+ break;
default:
break;
}
@@ -1516,6 +1554,35 @@ static int hns3_get_module_eeprom(struct net_device *netdev,
return ops->get_module_eeprom(handle, ee->offset, ee->len, data);
}

+static u32 hns3_get_priv_flags(struct net_device *netdev)
+{
+ struct hnae3_handle *handle = hns3_get_handle(netdev);
+
+ return handle->priv_flags;
+}
+
+static int hns3_set_priv_flags(struct net_device *netdev, u32 pflags)
+{
+ struct hnae3_handle *handle = hns3_get_handle(netdev);
+ u32 changed = pflags ^ handle->priv_flags;
+ u32 i;
+
+ for (i = 0; i < HNAE3_PFLAG_MAX; i++) {
+ if (changed & BIT(i)) {
+ bool enable = !(handle->priv_flags & BIT(i));
+
+ if (enable)
+ handle->priv_flags |= BIT(i);
+ else
+ handle->priv_flags &= ~BIT(i);
+
+ hns3_priv_flags[i].handler(netdev, enable);
+ }
+ }
+
+ return 0;
+}
+
#define HNS3_ETHTOOL_COALESCE (ETHTOOL_COALESCE_USECS | \
ETHTOOL_COALESCE_USE_ADAPTIVE | \
ETHTOOL_COALESCE_RX_USECS_HIGH | \
@@ -1546,6 +1613,8 @@ static const struct ethtool_ops hns3vf_ethtool_ops = {
.get_link = hns3_get_link,
.get_msglevel = hns3_get_msglevel,
.set_msglevel = hns3_set_msglevel,
+ .get_priv_flags = hns3_get_priv_flags,
+ .set_priv_flags = hns3_set_priv_flags,
};

static const struct ethtool_ops hns3_ethtool_ops = {
@@ -1582,6 +1651,8 @@ static const struct ethtool_ops hns3_ethtool_ops = {
.set_fecparam = hns3_set_fecparam,
.get_module_info = hns3_get_module_info,
.get_module_eeprom = hns3_get_module_eeprom,
+ .get_priv_flags = hns3_get_priv_flags,
+ .set_priv_flags = hns3_set_priv_flags,
};

void hns3_ethtool_set_ops(struct net_device *netdev)
--
2.7.4
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