diff options
| author |   Huazhong Tan <tanhuazhong@huawei.com> | 2021-06-16 14:36:14 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-06-16 00:36:06 -0700 |
| commit | 1a00197b7d2fe57f0be93037d5090e19a9b178c8 (patch) | |
| tree | 59bea10f875a00e7956ad2ea69968444aac0437c /drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | |
| parent | net: hns3: use tx bounce buffer for small packets (diff) | |
| download | linux-dev-1a00197b7d2fe57f0be93037d5090e19a9b178c8.tar.xz linux-dev-1a00197b7d2fe57f0be93037d5090e19a9b178c8.zip | |
net: hns3: add support to query tx spare buffer size for pf
Add support to query tx spare buffer size from configuration
file, and use this info to do spare buffer initialization when
the module parameter 'tx_spare_buf_size' is not specified.
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index f6fdf93c8cad..f3e482ab3c71 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -1279,6 +1279,7 @@ static u32 hclge_get_max_speed(u16 speed_ability) static void hclge_parse_cfg(struct hclge_cfg *cfg, struct hclge_desc *desc) { +#define HCLGE_TX_SPARE_SIZE_UNIT 4096 #define SPEED_ABILITY_EXT_SHIFT 8 struct hclge_cfg_param_cmd *req; @@ -1358,6 +1359,15 @@ static void hclge_parse_cfg(struct hclge_cfg *cfg, struct hclge_desc *desc) cfg->pf_rss_size_max = cfg->pf_rss_size_max ? 1U << cfg->pf_rss_size_max : cfg->vf_rss_size_max; + + /* The unit of the tx spare buffer size queried from configuration + * file is HCLGE_TX_SPARE_SIZE_UNIT(4096) bytes, so a conversion is + * needed here. + */ + cfg->tx_spare_buf_size = hnae3_get_field(__le32_to_cpu(req->param[2]), + HCLGE_CFG_TX_SPARE_BUF_SIZE_M, + HCLGE_CFG_TX_SPARE_BUF_SIZE_S); + cfg->tx_spare_buf_size *= HCLGE_TX_SPARE_SIZE_UNIT; } /* hclge_get_cfg: query the static parameter from flash @@ -1539,6 +1549,7 @@ static int hclge_configure(struct hclge_dev *hdev) hdev->tc_max = cfg.tc_num; hdev->tm_info.hw_pfc_map = 0; hdev->wanted_umv_size = cfg.umv_space; + hdev->tx_spare_buf_size = cfg.tx_spare_buf_size; if (cfg.vlan_fliter_cap == HCLGE_VLAN_FLTR_CAN_MDF) set_bit(HNAE3_DEV_SUPPORT_VLAN_FLTR_MDF_B, ae_dev->caps); @@ -1736,6 +1747,7 @@ static int hclge_knic_setup(struct hclge_vport *vport, u16 num_tqps, kinfo->num_rx_desc = num_rx_desc; kinfo->rx_buf_len = hdev->rx_buf_len; + kinfo->tx_spare_buf_size = hdev->tx_spare_buf_size; kinfo->tqp = devm_kcalloc(&hdev->pdev->dev, num_tqps, sizeof(struct hnae3_queue *), GFP_KERNEL); @@ -11059,6 +11071,8 @@ static void hclge_info_show(struct hclge_dev *hdev) hdev->flag & HCLGE_FLAG_DCB_ENABLE ? "enable" : "disable"); dev_info(dev, "MQPRIO %s\n", hdev->flag & HCLGE_FLAG_MQPRIO_ENABLE ? "enable" : "disable"); + dev_info(dev, "Default tx spare buffer size: %u\n", + hdev->tx_spare_buf_size); dev_info(dev, "PF info end.\n"); } |