Messages in this thread Patch in this message | | | From | Guangbin Huang <> | Subject | [PATCH V2 net-next 9/9] net: hns3: add support for VF setting rx/tx buffer size by devlink param | Date | Thu, 15 Jul 2021 15:45:10 +0800 |
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From: Hao Chen <chenhao288@hisilicon.com>
Add support for VF setting rx/tx buffer size by devlink param
Signed-off-by: Hao Chen <chenhao288@hisilicon.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> --- .../hisilicon/hns3/hns3vf/hclgevf_devlink.c | 88 +++++++++++++++++++++- .../hisilicon/hns3/hns3vf/hclgevf_devlink.h | 7 ++ .../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 3 + 3 files changed, 97 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c index bce598913dc3..4c364055e464 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c @@ -34,6 +34,37 @@ static int hclgevf_devlink_info_get(struct devlink *devlink, version_str); } +static void hclgevf_devlink_get_param_setting(struct devlink *devlink) +{ + struct hclgevf_devlink_priv *priv = devlink_priv(devlink); + struct hclgevf_dev *hdev = priv->hdev; + struct pci_dev *pdev = hdev->pdev; + union devlink_param_value val; + int i, ret; + + ret = devlink_param_driverinit_value_get(devlink, + HCLGEVF_DEVLINK_PARAM_ID_RX_BUF_LEN, + &val); + if (!ret) { + hdev->rx_buf_len = val.vu32; + hdev->nic.kinfo.rx_buf_len = hdev->rx_buf_len; + for (i = 0; i < hdev->num_tqps; i++) + hdev->htqp[i].q.buf_size = hdev->rx_buf_len; + } else { + dev_err(&pdev->dev, + "failed to get rx buffer size, ret = %d\n", ret); + } + + ret = devlink_param_driverinit_value_get(devlink, + HCLGEVF_DEVLINK_PARAM_ID_TX_BUF_SIZE, + &val); + if (!ret) + hdev->nic.kinfo.devlink_tx_spare_buf_size = val.vu32; + else + dev_err(&pdev->dev, + "failed to get tx buffer size, ret = %d\n", ret); +} + static int hclgevf_devlink_reload_down(struct devlink *devlink, bool netns_change, enum devlink_reload_action action, @@ -106,6 +137,49 @@ static const struct devlink_ops hclgevf_devlink_ops = { .reload_up = hclgevf_devlink_reload_up, }; +static int +hclgevf_devlink_rx_buffer_size_validate(struct devlink *devlink, u32 id, + union devlink_param_value val, + struct netlink_ext_ack *extack) +{ +#define HCLGEVF_RX_BUF_LEN_2K 2048 +#define HCLGEVF_RX_BUF_LEN_4K 4096 + + if (val.vu32 != HCLGEVF_RX_BUF_LEN_2K && + val.vu32 != HCLGEVF_RX_BUF_LEN_4K) { + NL_SET_ERR_MSG_MOD(extack, "Supported size is 2048 or 4096"); + return -EOPNOTSUPP; + } + + return 0; +} + +static const struct devlink_param hclgevf_devlink_params[] = { + DEVLINK_PARAM_DRIVER(HCLGEVF_DEVLINK_PARAM_ID_RX_BUF_LEN, + "rx_buffer_len", DEVLINK_PARAM_TYPE_U32, + BIT(DEVLINK_PARAM_CMODE_DRIVERINIT), + NULL, NULL, + hclgevf_devlink_rx_buffer_size_validate), + DEVLINK_PARAM_DRIVER(HCLGEVF_DEVLINK_PARAM_ID_TX_BUF_SIZE, + "tx_buffer_size", DEVLINK_PARAM_TYPE_U32, + BIT(DEVLINK_PARAM_CMODE_DRIVERINIT), + NULL, NULL, NULL), +}; + +void hclgevf_devlink_set_params_init_values(struct hclgevf_dev *hdev) +{ + union devlink_param_value value; + + value.vu32 = hdev->rx_buf_len; + devlink_param_driverinit_value_set(hdev->devlink, + HCLGEVF_DEVLINK_PARAM_ID_RX_BUF_LEN, + value); + value.vu32 = 0; + devlink_param_driverinit_value_set(hdev->devlink, + HCLGEVF_DEVLINK_PARAM_ID_TX_BUF_SIZE, + value); +} + int hclgevf_devlink_init(struct hclgevf_dev *hdev) { struct pci_dev *pdev = hdev->pdev; @@ -130,10 +204,20 @@ int hclgevf_devlink_init(struct hclgevf_dev *hdev) hdev->devlink = devlink; + ret = devlink_params_register(devlink, hclgevf_devlink_params, + ARRAY_SIZE(hclgevf_devlink_params)); + if (ret) { + dev_err(&pdev->dev, + "failed to register devlink params, ret = %d\n", ret); + goto out_param_reg_fail; + } + devlink_reload_enable(devlink); return 0; - +out_param_reg_fail: + hdev->devlink = NULL; + devlink_unregister(devlink); out_reg_fail: devlink_free(devlink); return ret; @@ -148,6 +232,8 @@ void hclgevf_devlink_uninit(struct hclgevf_dev *hdev) devlink_reload_disable(devlink); + devlink_params_unregister(devlink, hclgevf_devlink_params, + ARRAY_SIZE(hclgevf_devlink_params)); devlink_unregister(devlink); devlink_free(devlink); diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.h b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.h index e09ea3d8a963..2159ec4a3523 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.h @@ -6,10 +6,17 @@ #include "hclgevf_main.h" +enum hclgevf_devlink_param_id { + HCLGEVF_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX, + HCLGEVF_DEVLINK_PARAM_ID_RX_BUF_LEN, + HCLGEVF_DEVLINK_PARAM_ID_TX_BUF_SIZE, +}; + struct hclgevf_devlink_priv { struct hclgevf_dev *hdev; }; +void hclgevf_devlink_set_params_init_values(struct hclgevf_dev *hdev); int hclgevf_devlink_init(struct hclgevf_dev *hdev); void hclgevf_devlink_uninit(struct hclgevf_dev *hdev); #endif diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c index 1e03c4d16125..ce7d652594e1 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c @@ -3374,6 +3374,9 @@ static int hclgevf_init_hdev(struct hclgevf_dev *hdev) goto err_config; } + hclgevf_devlink_set_params_init_values(hdev); + devlink_params_publish(hdev->devlink); + ret = hclgevf_alloc_tqps(hdev); if (ret) { dev_err(&pdev->dev, "failed(%d) to allocate TQPs\n", ret); -- 2.8.1
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