diff options
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c new file mode 100644 index 000000000000..a1571c108678 --- /dev/null +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c @@ -0,0 +1,166 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (c) 2021 Hisilicon Limited. */ + +#include <net/devlink.h> + +#include "hclge_devlink.h" + +static int hclge_devlink_scc_info_get(struct devlink *devlink, + struct devlink_info_req *req) +{ + struct hclge_devlink_priv *priv = devlink_priv(devlink); + char scc_version[HCLGE_DEVLINK_FW_SCC_LEN]; + struct hclge_dev *hdev = priv->hdev; + u32 scc_version_tmp; + int ret; + + ret = hclge_query_scc_version(hdev, &scc_version_tmp); + if (ret) { + dev_err(&hdev->pdev->dev, + "failed to get scc version, ret = %d\n", ret); + return ret; + } + + snprintf(scc_version, sizeof(scc_version), "%lu.%lu.%lu.%lu", + hnae3_get_field(scc_version_tmp, HNAE3_SCC_VERSION_BYTE3_MASK, + HNAE3_FW_VERSION_BYTE3_SHIFT), + hnae3_get_field(scc_version_tmp, HNAE3_SCC_VERSION_BYTE2_MASK, + HNAE3_FW_VERSION_BYTE2_SHIFT), + hnae3_get_field(scc_version_tmp, HNAE3_SCC_VERSION_BYTE1_MASK, + HNAE3_FW_VERSION_BYTE1_SHIFT), + hnae3_get_field(scc_version_tmp, HNAE3_SCC_VERSION_BYTE0_MASK, + HNAE3_FW_VERSION_BYTE0_SHIFT)); + return devlink_info_version_running_put(req, "fw.scc", scc_version); +} + +static int hclge_devlink_info_get(struct devlink *devlink, + struct devlink_info_req *req, + struct netlink_ext_ack *extack) +{ +#define HCLGE_DEVLINK_FW_STRING_LEN 32 + struct hclge_devlink_priv *priv = devlink_priv(devlink); + char version_str[HCLGE_DEVLINK_FW_STRING_LEN]; + struct hclge_dev *hdev = priv->hdev; + int ret; + + snprintf(version_str, sizeof(version_str), "%lu.%lu.%lu.%lu", + hnae3_get_field(hdev->fw_version, HNAE3_FW_VERSION_BYTE3_MASK, + HNAE3_FW_VERSION_BYTE3_SHIFT), + hnae3_get_field(hdev->fw_version, HNAE3_FW_VERSION_BYTE2_MASK, + HNAE3_FW_VERSION_BYTE2_SHIFT), + hnae3_get_field(hdev->fw_version, HNAE3_FW_VERSION_BYTE1_MASK, + HNAE3_FW_VERSION_BYTE1_SHIFT), + hnae3_get_field(hdev->fw_version, HNAE3_FW_VERSION_BYTE0_MASK, + HNAE3_FW_VERSION_BYTE0_SHIFT)); + + ret = devlink_info_version_running_put(req, + DEVLINK_INFO_VERSION_GENERIC_FW, + version_str); + if (ret) { + dev_err(&hdev->pdev->dev, "failed to set running version of fw\n"); + return ret; + } + + if (hdev->pdev->revision > HNAE3_DEVICE_VERSION_V2) + ret = hclge_devlink_scc_info_get(devlink, req); + + return ret; +} + +static int hclge_devlink_reload_down(struct devlink *devlink, bool netns_change, + enum devlink_reload_action action, + enum devlink_reload_limit limit, + struct netlink_ext_ack *extack) +{ + struct hclge_devlink_priv *priv = devlink_priv(devlink); + struct hclge_dev *hdev = priv->hdev; + struct hnae3_handle *h = &hdev->vport->nic; + struct pci_dev *pdev = hdev->pdev; + int ret; + + if (test_bit(HCLGE_STATE_RST_HANDLING, &hdev->state)) { + dev_err(&pdev->dev, "reset is handling\n"); + return -EBUSY; + } + + switch (action) { + case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: + rtnl_lock(); + ret = hdev->nic_client->ops->reset_notify(h, HNAE3_DOWN_CLIENT); + if (ret) { + rtnl_unlock(); + return ret; + } + + ret = hdev->nic_client->ops->reset_notify(h, + HNAE3_UNINIT_CLIENT); + rtnl_unlock(); + return ret; + default: + return -EOPNOTSUPP; + } +} + +static int hclge_devlink_reload_up(struct devlink *devlink, + enum devlink_reload_action action, + enum devlink_reload_limit limit, + u32 *actions_performed, + struct netlink_ext_ack *extack) +{ + struct hclge_devlink_priv *priv = devlink_priv(devlink); + struct hclge_dev *hdev = priv->hdev; + struct hnae3_handle *h = &hdev->vport->nic; + int ret; + + *actions_performed = BIT(action); + switch (action) { + case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: + rtnl_lock(); + ret = hdev->nic_client->ops->reset_notify(h, HNAE3_INIT_CLIENT); + if (ret) { + rtnl_unlock(); + return ret; + } + + ret = hdev->nic_client->ops->reset_notify(h, HNAE3_UP_CLIENT); + rtnl_unlock(); + return ret; + default: + return -EOPNOTSUPP; + } +} + +static const struct devlink_ops hclge_devlink_ops = { + .info_get = hclge_devlink_info_get, + .reload_actions = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT), + .reload_down = hclge_devlink_reload_down, + .reload_up = hclge_devlink_reload_up, +}; + +int hclge_devlink_init(struct hclge_dev *hdev) +{ + struct pci_dev *pdev = hdev->pdev; + struct hclge_devlink_priv *priv; + struct devlink *devlink; + + devlink = devlink_alloc(&hclge_devlink_ops, + sizeof(struct hclge_devlink_priv), &pdev->dev); + if (!devlink) + return -ENOMEM; + + priv = devlink_priv(devlink); + priv->hdev = hdev; + hdev->devlink = devlink; + + devlink_register(devlink); + return 0; +} + +void hclge_devlink_uninit(struct hclge_dev *hdev) +{ + struct devlink *devlink = hdev->devlink; + + devlink_unregister(devlink); + + devlink_free(devlink); +} |