diff options
Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e_devlink.c')
-rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_devlink.c | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_devlink.c b/drivers/net/ethernet/intel/i40e/i40e_devlink.c new file mode 100644 index 0000000000..cc4e9e2add --- /dev/null +++ b/drivers/net/ethernet/intel/i40e/i40e_devlink.c @@ -0,0 +1,235 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright(c) 2023 Intel Corporation. */ + +#include <net/devlink.h> +#include "i40e.h" +#include "i40e_devlink.h" + +static void i40e_info_get_dsn(struct i40e_pf *pf, char *buf, size_t len) +{ + u8 dsn[8]; + + put_unaligned_be64(pci_get_dsn(pf->pdev), dsn); + + snprintf(buf, len, "%8phD", dsn); +} + +static void i40e_info_fw_mgmt(struct i40e_hw *hw, char *buf, size_t len) +{ + struct i40e_adminq_info *aq = &hw->aq; + + snprintf(buf, len, "%u.%u", aq->fw_maj_ver, aq->fw_min_ver); +} + +static void i40e_info_fw_mgmt_build(struct i40e_hw *hw, char *buf, size_t len) +{ + struct i40e_adminq_info *aq = &hw->aq; + + snprintf(buf, len, "%05d", aq->fw_build); +} + +static void i40e_info_fw_api(struct i40e_hw *hw, char *buf, size_t len) +{ + struct i40e_adminq_info *aq = &hw->aq; + + snprintf(buf, len, "%u.%u", aq->api_maj_ver, aq->api_min_ver); +} + +static void i40e_info_pba(struct i40e_hw *hw, char *buf, size_t len) +{ + buf[0] = '\0'; + if (hw->pba_id) + strscpy(buf, hw->pba_id, len); +} + +enum i40e_devlink_version_type { + I40E_DL_VERSION_FIXED, + I40E_DL_VERSION_RUNNING, +}; + +static int i40e_devlink_info_put(struct devlink_info_req *req, + enum i40e_devlink_version_type type, + const char *key, const char *value) +{ + if (!strlen(value)) + return 0; + + switch (type) { + case I40E_DL_VERSION_FIXED: + return devlink_info_version_fixed_put(req, key, value); + case I40E_DL_VERSION_RUNNING: + return devlink_info_version_running_put(req, key, value); + } + return 0; +} + +static int i40e_devlink_info_get(struct devlink *dl, + struct devlink_info_req *req, + struct netlink_ext_ack *extack) +{ + struct i40e_pf *pf = devlink_priv(dl); + struct i40e_hw *hw = &pf->hw; + char buf[32]; + int err; + + i40e_info_get_dsn(pf, buf, sizeof(buf)); + err = devlink_info_serial_number_put(req, buf); + if (err) + return err; + + i40e_info_fw_mgmt(hw, buf, sizeof(buf)); + err = i40e_devlink_info_put(req, I40E_DL_VERSION_RUNNING, + DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, buf); + if (err) + return err; + + i40e_info_fw_mgmt_build(hw, buf, sizeof(buf)); + err = i40e_devlink_info_put(req, I40E_DL_VERSION_RUNNING, + "fw.mgmt.build", buf); + if (err) + return err; + + i40e_info_fw_api(hw, buf, sizeof(buf)); + err = i40e_devlink_info_put(req, I40E_DL_VERSION_RUNNING, + DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API, + buf); + if (err) + return err; + + i40e_info_nvm_ver(hw, buf, sizeof(buf)); + err = i40e_devlink_info_put(req, I40E_DL_VERSION_RUNNING, + "fw.psid.api", buf); + if (err) + return err; + + i40e_info_eetrack(hw, buf, sizeof(buf)); + err = i40e_devlink_info_put(req, I40E_DL_VERSION_RUNNING, + DEVLINK_INFO_VERSION_GENERIC_FW_BUNDLE_ID, + buf); + if (err) + return err; + + i40e_info_civd_ver(hw, buf, sizeof(buf)); + err = i40e_devlink_info_put(req, I40E_DL_VERSION_RUNNING, + DEVLINK_INFO_VERSION_GENERIC_FW_UNDI, buf); + if (err) + return err; + + i40e_info_pba(hw, buf, sizeof(buf)); + err = i40e_devlink_info_put(req, I40E_DL_VERSION_FIXED, + DEVLINK_INFO_VERSION_GENERIC_BOARD_ID, buf); + + return err; +} + +static const struct devlink_ops i40e_devlink_ops = { + .info_get = i40e_devlink_info_get, +}; + +/** + * i40e_alloc_pf - Allocate devlink and return i40e_pf structure pointer + * @dev: the device to allocate for + * + * Allocate a devlink instance for this device and return the private + * area as the i40e_pf structure. + **/ +struct i40e_pf *i40e_alloc_pf(struct device *dev) +{ + struct devlink *devlink; + + devlink = devlink_alloc(&i40e_devlink_ops, sizeof(struct i40e_pf), dev); + if (!devlink) + return NULL; + + return devlink_priv(devlink); +} + +/** + * i40e_free_pf - Free i40e_pf structure and associated devlink + * @pf: the PF structure + * + * Free i40e_pf structure and devlink allocated by devlink_alloc. + **/ +void i40e_free_pf(struct i40e_pf *pf) +{ + struct devlink *devlink = priv_to_devlink(pf); + + devlink_free(devlink); +} + +/** + * i40e_devlink_register - Register devlink interface for this PF + * @pf: the PF to register the devlink for. + * + * Register the devlink instance associated with this physical function. + **/ +void i40e_devlink_register(struct i40e_pf *pf) +{ + devlink_register(priv_to_devlink(pf)); +} + +/** + * i40e_devlink_unregister - Unregister devlink resources for this PF. + * @pf: the PF structure to cleanup + * + * Releases resources used by devlink and cleans up associated memory. + **/ +void i40e_devlink_unregister(struct i40e_pf *pf) +{ + devlink_unregister(priv_to_devlink(pf)); +} + +/** + * i40e_devlink_set_switch_id - Set unique switch id based on pci dsn + * @pf: the PF to create a devlink port for + * @ppid: struct with switch id information + */ +static void i40e_devlink_set_switch_id(struct i40e_pf *pf, + struct netdev_phys_item_id *ppid) +{ + u64 id = pci_get_dsn(pf->pdev); + + ppid->id_len = sizeof(id); + put_unaligned_be64(id, &ppid->id); +} + +/** + * i40e_devlink_create_port - Create a devlink port for this PF + * @pf: the PF to create a port for + * + * Create and register a devlink_port for this PF. Note that although each + * physical function is connected to a separate devlink instance, the port + * will still be numbered according to the physical function id. + * + * Return: zero on success or an error code on failure. + **/ +int i40e_devlink_create_port(struct i40e_pf *pf) +{ + struct devlink *devlink = priv_to_devlink(pf); + struct devlink_port_attrs attrs = {}; + struct device *dev = &pf->pdev->dev; + int err; + + attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL; + attrs.phys.port_number = pf->hw.pf_id; + i40e_devlink_set_switch_id(pf, &attrs.switch_id); + devlink_port_attrs_set(&pf->devlink_port, &attrs); + err = devlink_port_register(devlink, &pf->devlink_port, pf->hw.pf_id); + if (err) { + dev_err(dev, "devlink_port_register failed: %d\n", err); + return err; + } + + return 0; +} + +/** + * i40e_devlink_destroy_port - Destroy the devlink_port for this PF + * @pf: the PF to cleanup + * + * Unregisters the devlink_port structure associated with this PF. + **/ +void i40e_devlink_destroy_port(struct i40e_pf *pf) +{ + devlink_port_unregister(&pf->devlink_port); +} |