[PATCH net-next] hinic: add support to set and get pause param

From: Luo bin
Date: Sat May 16 2020 - 05:43:05 EST

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add support to set pause param with ethtool -A and get pause
param with ethtool -a. Also remove set_link_ksettings ops for VF.

Signed-off-by: Luo bin <luobin9@xxxxxxxxxx>
---
.../net/ethernet/huawei/hinic/hinic_ethtool.c | 100 +++++++++++++++++-
.../net/ethernet/huawei/hinic/hinic_hw_dev.c | 2 +
.../net/ethernet/huawei/hinic/hinic_hw_io.h | 9 ++
.../net/ethernet/huawei/hinic/hinic_main.c | 27 ++++-
.../net/ethernet/huawei/hinic/hinic_port.c | 5 +
5 files changed, 140 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c b/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c
index 9796c1fbe132..3a5b846c190b 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c
@@ -613,6 +613,78 @@ static int hinic_set_ringparam(struct net_device *netdev,

return 0;
}
+
+static void hinic_get_pauseparam(struct net_device *netdev,
+ struct ethtool_pauseparam *pause)
+{
+ struct hinic_dev *nic_dev = netdev_priv(netdev);
+ struct hinic_pause_config pause_info = {0};
+ struct hinic_nic_cfg *nic_cfg;
+ int err;
+
+ nic_cfg = &nic_dev->hwdev->func_to_io.nic_cfg;
+
+ err = hinic_get_hw_pause_info(nic_dev->hwdev, &pause_info);
+ if (err) {
+ netif_err(nic_dev, drv, netdev,
+ "Failed to get pauseparam from hw\n");
+ } else {
+ pause->autoneg = pause_info.auto_neg;
+ if (nic_cfg->pause_set) {
+ pause->rx_pause = nic_cfg->rx_pause;
+ pause->tx_pause = nic_cfg->tx_pause;
+ } else {
+ pause->rx_pause = pause_info.rx_pause;
+ pause->tx_pause = pause_info.tx_pause;
+ }
+ }
+}
+
+static int hinic_set_pauseparam(struct net_device *netdev,
+ struct ethtool_pauseparam *pause)
+{
+ struct hinic_dev *nic_dev = netdev_priv(netdev);
+ struct hinic_pause_config pause_info = {0};
+ struct hinic_port_cap port_cap = {0};
+ int err;
+
+ err = hinic_port_get_cap(nic_dev, &port_cap);
+ if (err) {
+ netif_err(nic_dev, drv, netdev,
+ "Failed to get port capability\n");
+ return -EIO;
+ }
+
+ if (pause->autoneg != port_cap.autoneg_state) {
+ netif_err(nic_dev, drv, netdev,
+ "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
+ return -EOPNOTSUPP;
+ }
+
+ pause_info.auto_neg = pause->autoneg;
+ pause_info.rx_pause = pause->rx_pause;
+ pause_info.tx_pause = pause->tx_pause;
+
+ down(&nic_dev->hwdev->func_to_io.nic_cfg.cfg_lock);
+ err = hinic_set_hw_pause_info(nic_dev->hwdev, &pause_info);
+ if (err) {
+ netif_err(nic_dev, drv, netdev, "Failed to set pauseparam\n");
+ up(&nic_dev->hwdev->func_to_io.nic_cfg.cfg_lock);
+ return err;
+ }
+ nic_dev->hwdev->func_to_io.nic_cfg.pause_set = true;
+ nic_dev->hwdev->func_to_io.nic_cfg.auto_neg = pause->autoneg;
+ nic_dev->hwdev->func_to_io.nic_cfg.rx_pause = pause->rx_pause;
+ nic_dev->hwdev->func_to_io.nic_cfg.tx_pause = pause->tx_pause;
+ up(&nic_dev->hwdev->func_to_io.nic_cfg.cfg_lock);
+
+ netif_info(nic_dev, drv, netdev, "Set pause options, tx: %s, rx: %s\n",
+ pause->tx_pause ? "on" : "off",
+ pause->rx_pause ? "on" : "off");
+
+ return 0;
+}
+
static void hinic_get_channels(struct net_device *netdev,
struct ethtool_channels *channels)
{
@@ -1247,6 +1319,27 @@ static const struct ethtool_ops hinic_ethtool_ops = {
.get_link = ethtool_op_get_link,
.get_ringparam = hinic_get_ringparam,
.set_ringparam = hinic_set_ringparam,
+ .get_pauseparam = hinic_get_pauseparam,
+ .set_pauseparam = hinic_set_pauseparam,
+ .get_channels = hinic_get_channels,
+ .set_channels = hinic_set_channels,
+ .get_rxnfc = hinic_get_rxnfc,
+ .set_rxnfc = hinic_set_rxnfc,
+ .get_rxfh_key_size = hinic_get_rxfh_key_size,
+ .get_rxfh_indir_size = hinic_get_rxfh_indir_size,
+ .get_rxfh = hinic_get_rxfh,
+ .set_rxfh = hinic_set_rxfh,
+ .get_sset_count = hinic_get_sset_count,
+ .get_ethtool_stats = hinic_get_ethtool_stats,
+ .get_strings = hinic_get_strings,
+};
+
+static const struct ethtool_ops hinicvf_ethtool_ops = {
+ .get_link_ksettings = hinic_get_link_ksettings,
+ .get_drvinfo = hinic_get_drvinfo,
+ .get_link = ethtool_op_get_link,
+ .get_ringparam = hinic_get_ringparam,
+ .set_ringparam = hinic_set_ringparam,
.get_channels = hinic_get_channels,
.set_channels = hinic_set_channels,
.get_rxnfc = hinic_get_rxnfc,
@@ -1262,5 +1355,10 @@ static const struct ethtool_ops hinic_ethtool_ops = {

void hinic_set_ethtool_ops(struct net_device *netdev)
{
- netdev->ethtool_ops = &hinic_ethtool_ops;
+ struct hinic_dev *nic_dev = netdev_priv(netdev);
+
+ if (!HINIC_IS_VF(nic_dev->hwdev->hwif))
+ netdev->ethtool_ops = &hinic_ethtool_ops;
+ else
+ netdev->ethtool_ops = &hinicvf_ethtool_ops;
}
diff --git a/drivers/net/ethernet/huawei/hinic/hinic_hw_dev.c b/drivers/net/ethernet/huawei/hinic/hinic_hw_dev.c
index 0245da02efbb..c5b296ed0556 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_hw_dev.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_dev.c
@@ -777,6 +777,8 @@ struct hinic_hwdev *hinic_init_hwdev(struct pci_dev *pdev)
goto err_dev_cap;
}

+ sema_init(&hwdev->func_to_io.nic_cfg.cfg_lock, 1);
+
err = hinic_vf_func_init(hwdev);
if (err) {
dev_err(&pdev->dev, "Failed to init nic mbox\n");
diff --git a/drivers/net/ethernet/huawei/hinic/hinic_hw_io.h b/drivers/net/ethernet/huawei/hinic/hinic_hw_io.h
index 214f162f7579..8cd0613b3e57 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_hw_io.h
+++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_io.h
@@ -47,6 +47,14 @@ struct hinic_free_db_area {
struct semaphore idx_lock;
};

+struct hinic_nic_cfg {
+ struct semaphore cfg_lock;
+ bool pause_set;
+ u32 auto_neg;
+ u32 rx_pause;
+ u32 tx_pause;
+};
+
struct hinic_func_to_io {
struct hinic_hwif *hwif;
struct hinic_hwdev *hwdev;
@@ -78,6 +86,7 @@ struct hinic_func_to_io {
u16 max_vfs;
struct vf_data_storage *vf_infos;
u8 link_status;
+ struct hinic_nic_cfg nic_cfg;
};

struct hinic_wq_page_size {
diff --git a/drivers/net/ethernet/huawei/hinic/hinic_main.c b/drivers/net/ethernet/huawei/hinic/hinic_main.c
index 2c07b03bf6e5..d24c5af89bad 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_main.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_main.c
@@ -899,6 +899,26 @@ static void netdev_features_init(struct net_device *netdev)
netdev->features = netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER;
}

+static void hinic_refresh_nic_cfg(struct hinic_dev *nic_dev)
+{
+ struct hinic_nic_cfg *nic_cfg = &nic_dev->hwdev->func_to_io.nic_cfg;
+ struct hinic_pause_config pause_info = {0};
+ struct hinic_port_cap port_cap = {0};
+
+ if (hinic_port_get_cap(nic_dev, &port_cap))
+ return;
+
+ down(&nic_cfg->cfg_lock);
+ if (nic_cfg->pause_set) {
+ nic_cfg->auto_neg = port_cap.autoneg_state;
+ pause_info.auto_neg = nic_cfg->auto_neg;
+ pause_info.rx_pause = nic_cfg->rx_pause;
+ pause_info.tx_pause = nic_cfg->tx_pause;
+ hinic_set_hw_pause_info(nic_dev->hwdev, &pause_info);
+ }
+ up(&nic_cfg->cfg_lock);
+}
+
/**
* link_status_event_handler - link event handler
* @handle: nic device for the handler
@@ -930,6 +950,9 @@ static void link_status_event_handler(void *handle, void *buf_in, u16 in_size,

up(&nic_dev->mgmt_lock);

+ if (!HINIC_IS_VF(nic_dev->hwdev->hwif))
+ hinic_refresh_nic_cfg(nic_dev);
+
netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is UP\n");
} else {
down(&nic_dev->mgmt_lock);
@@ -1020,8 +1043,6 @@ static int nic_dev_init(struct pci_dev *pdev)
goto err_alloc_etherdev;
}

- hinic_set_ethtool_ops(netdev);
-
if (!HINIC_IS_VF(hwdev->hwif))
netdev->netdev_ops = &hinic_netdev_ops;
else
@@ -1044,6 +1065,8 @@ static int nic_dev_init(struct pci_dev *pdev)
nic_dev->sriov_info.pdev = pdev;
nic_dev->max_qps = num_qps;

+ hinic_set_ethtool_ops(netdev);
+
sema_init(&nic_dev->mgmt_lock, 1);

tx_stats = &nic_dev->tx_stats;
diff --git a/drivers/net/ethernet/huawei/hinic/hinic_port.c b/drivers/net/ethernet/huawei/hinic/hinic_port.c
index 175c0ee00038..4b51121b3021 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_port.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_port.c
@@ -1082,6 +1082,7 @@ int hinic_get_link_mode(struct hinic_hwdev *hwdev,
if (!hwdev || !link_mode)
return -EINVAL;

+ link_mode->func_id = HINIC_HWIF_FUNC_IDX(hwdev->hwif);
out_size = sizeof(*link_mode);

err = hinic_port_msg_cmd(hwdev, HINIC_PORT_CMD_GET_LINK_MODE,
@@ -1172,6 +1173,8 @@ int hinic_get_hw_pause_info(struct hinic_hwdev *hwdev,
u16 out_size = sizeof(*pause_info);
int err;

+ pause_info->func_id = HINIC_HWIF_FUNC_IDX(hwdev->hwif);
+
err = hinic_port_msg_cmd(hwdev, HINIC_PORT_CMD_GET_PAUSE_INFO,
pause_info, sizeof(*pause_info),
pause_info, &out_size);
@@ -1190,6 +1193,8 @@ int hinic_set_hw_pause_info(struct hinic_hwdev *hwdev,
u16 out_size = sizeof(*pause_info);
int err;

+ pause_info->func_id = HINIC_HWIF_FUNC_IDX(hwdev->hwif);
+
err = hinic_port_msg_cmd(hwdev, HINIC_PORT_CMD_SET_PAUSE_INFO,
pause_info, sizeof(*pause_info),
pause_info, &out_size);
--
2.17.1

Next message: maobibo: "Re: [PATCH 2/3] mm/memory.c: Update local TLB if PTE entry exists"
Previous message: Linus Walleij: "Re: [PATCH] gpiolib: Document that GPIO line names are not globally unique"
Next in thread: Andrew Lunn: "Re: [PATCH net-next] hinic: add support to set and get pause param"
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