UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

net: hns3: add support to set/get rx buf len via ethtool for hns3 driver 

Rx buf len is for rx BD buffer size, support setting it via ethtool -G
parameter and getting it via ethtool -g parameter.

Signed-off-by: Hao Chen <chenhao288@hisilicon.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hao Chen 2021-11-18 20:12:44 +08:00 committed by David S. Miller
parent 7462494408
commit e65a0231d2
1 changed files with 44 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

52
drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
View File

@ -649,7 +649,7 @@ static void hns3_get_ringparam(struct net_device *netdev,
{
struct hns3_nic_priv *priv = netdev_priv(netdev);
struct hnae3_handle *h = priv->ae_handle;
int queue_num = h->kinfo.num_tqps;
int rx_queue_index = h->kinfo.num_tqps;
if (hns3_nic_resetting(netdev)) {
netdev_err(netdev, "dev resetting!");
@ -660,7 +660,8 @@ static void hns3_get_ringparam(struct net_device *netdev,
param->rx_max_pending = HNS3_RING_MAX_PENDING;
param->tx_pending = priv->ring[0].desc_num;
param->rx_pending = priv->ring[queue_num].desc_num;
param->rx_pending = priv->ring[rx_queue_index].desc_num;
kernel_param->rx_buf_len = priv->ring[rx_queue_index].buf_size;
}
static void hns3_get_pauseparam(struct net_device *netdev,
@ -1062,14 +1063,23 @@ static struct hns3_enet_ring *hns3_backup_ringparam(struct hns3_nic_priv *priv)
}
static int hns3_check_ringparam(struct net_device *ndev,
struct ethtool_ringparam *param)
struct ethtool_ringparam *param,
struct kernel_ethtool_ringparam *kernel_param)
{
#define RX_BUF_LEN_2K 2048
#define RX_BUF_LEN_4K 4096
if (hns3_nic_resetting(ndev))
return -EBUSY;
if (param->rx_mini_pending || param->rx_jumbo_pending)
return -EINVAL;
if (kernel_param->rx_buf_len != RX_BUF_LEN_2K &&
kernel_param->rx_buf_len != RX_BUF_LEN_4K) {
netdev_err(ndev, "Rx buf len only support 2048 and 4096\n");
return -EINVAL;
}
if (param->tx_pending > HNS3_RING_MAX_PENDING ||
param->tx_pending < HNS3_RING_MIN_PENDING ||
param->rx_pending > HNS3_RING_MAX_PENDING ||
@ -1082,6 +1092,22 @@ static int hns3_check_ringparam(struct net_device *ndev,
return 0;
}
static int hns3_change_rx_buf_len(struct net_device *ndev, u32 rx_buf_len)
{
struct hns3_nic_priv *priv = netdev_priv(ndev);
struct hnae3_handle *h = priv->ae_handle;
int i;
h->kinfo.rx_buf_len = rx_buf_len;
for (i = 0; i < h->kinfo.num_tqps; i++) {
h->kinfo.tqp[i]->buf_size = rx_buf_len;
priv->ring[i + h->kinfo.num_tqps].buf_size = rx_buf_len;
}
return 0;
}
static int hns3_set_ringparam(struct net_device *ndev,
struct ethtool_ringparam *param,
struct kernel_ethtool_ringparam *kernel_param,
@ -1094,9 +1120,10 @@ static int hns3_set_ringparam(struct net_device *ndev,
u32 old_tx_desc_num, new_tx_desc_num;
u32 old_rx_desc_num, new_rx_desc_num;
u16 queue_num = h->kinfo.num_tqps;
u32 old_rx_buf_len;
int ret, i;
ret = hns3_check_ringparam(ndev, param);
ret = hns3_check_ringparam(ndev, param, kernel_param);
if (ret)
return ret;
@ -1105,8 +1132,10 @@ static int hns3_set_ringparam(struct net_device *ndev,
new_rx_desc_num = ALIGN(param->rx_pending, HNS3_RING_BD_MULTIPLE);
old_tx_desc_num = priv->ring[0].desc_num;
old_rx_desc_num = priv->ring[queue_num].desc_num;
old_rx_buf_len = priv->ring[queue_num].buf_size;
if (old_tx_desc_num == new_tx_desc_num &&
old_rx_desc_num == new_rx_desc_num)
old_rx_desc_num == new_rx_desc_num &&
kernel_param->rx_buf_len == old_rx_buf_len)
return 0;
tmp_rings = hns3_backup_ringparam(priv);
@ -1117,19 +1146,22 @@ static int hns3_set_ringparam(struct net_device *ndev,
}
netdev_info(ndev,
"Changing Tx/Rx ring depth from %u/%u to %u/%u\n",
"Changing Tx/Rx ring depth from %u/%u to %u/%u, Changing rx buffer len from %d to %d\n",
old_tx_desc_num, old_rx_desc_num,
new_tx_desc_num, new_rx_desc_num);
new_tx_desc_num, new_rx_desc_num,
old_rx_buf_len, kernel_param->rx_buf_len);
if (if_running)
ndev->netdev_ops->ndo_stop(ndev);
hns3_change_all_ring_bd_num(priv, new_tx_desc_num, new_rx_desc_num);
hns3_change_rx_buf_len(ndev, kernel_param->rx_buf_len);
ret = hns3_init_all_ring(priv);
if (ret) {
netdev_err(ndev, "Change bd num fail, revert to old value(%d)\n",
netdev_err(ndev, "set ringparam fail, revert to old value(%d)\n",
ret);
hns3_change_rx_buf_len(ndev, old_rx_buf_len);
hns3_change_all_ring_bd_num(priv, old_tx_desc_num,
old_rx_desc_num);
for (i = 0; i < h->kinfo.num_tqps * 2; i++)
@ -1811,6 +1843,8 @@ static int hns3_set_tunable(struct net_device *netdev,
ETHTOOL_COALESCE_MAX_FRAMES | \
ETHTOOL_COALESCE_USE_CQE)
#define HNS3_ETHTOOL_RING ETHTOOL_RING_USE_RX_BUF_LEN
static int hns3_get_ts_info(struct net_device *netdev,
struct ethtool_ts_info *info)
{
@ -1889,6 +1923,7 @@ static int hns3_get_link_ext_state(struct net_device *netdev,
static const struct ethtool_ops hns3vf_ethtool_ops = {
.supported_coalesce_params = HNS3_ETHTOOL_COALESCE,
.supported_ring_params = HNS3_ETHTOOL_RING,
.get_drvinfo = hns3_get_drvinfo,
.get_ringparam = hns3_get_ringparam,
.set_ringparam = hns3_set_ringparam,
@ -1920,6 +1955,7 @@ static const struct ethtool_ops hns3vf_ethtool_ops = {
static const struct ethtool_ops hns3_ethtool_ops = {
.supported_coalesce_params = HNS3_ETHTOOL_COALESCE,
.supported_ring_params = HNS3_ETHTOOL_RING,
.self_test = hns3_self_test,
.get_drvinfo = hns3_get_drvinfo,
.get_link = hns3_get_link,