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1// SPDX-License-Identifier: GPL-2.02/* Copyright(c) 2023 Intel Corporation. */3 4#include <net/devlink.h>5#include "i40e.h"6#include "i40e_devlink.h"7 8static void i40e_info_get_dsn(struct i40e_pf *pf, char *buf, size_t len)9{10 u8 dsn[8];11 12 put_unaligned_be64(pci_get_dsn(pf->pdev), dsn);13 14 snprintf(buf, len, "%8phD", dsn);15}16 17static void i40e_info_fw_mgmt(struct i40e_hw *hw, char *buf, size_t len)18{19 struct i40e_adminq_info *aq = &hw->aq;20 21 snprintf(buf, len, "%u.%u", aq->fw_maj_ver, aq->fw_min_ver);22}23 24static void i40e_info_fw_mgmt_build(struct i40e_hw *hw, char *buf, size_t len)25{26 struct i40e_adminq_info *aq = &hw->aq;27 28 snprintf(buf, len, "%05d", aq->fw_build);29}30 31static void i40e_info_fw_api(struct i40e_hw *hw, char *buf, size_t len)32{33 struct i40e_adminq_info *aq = &hw->aq;34 35 snprintf(buf, len, "%u.%u", aq->api_maj_ver, aq->api_min_ver);36}37 38static void i40e_info_pba(struct i40e_hw *hw, char *buf, size_t len)39{40 buf[0] = '\0';41 if (hw->pba_id)42 strscpy(buf, hw->pba_id, len);43}44 45enum i40e_devlink_version_type {46 I40E_DL_VERSION_FIXED,47 I40E_DL_VERSION_RUNNING,48};49 50static int i40e_devlink_info_put(struct devlink_info_req *req,51 enum i40e_devlink_version_type type,52 const char *key, const char *value)53{54 if (!strlen(value))55 return 0;56 57 switch (type) {58 case I40E_DL_VERSION_FIXED:59 return devlink_info_version_fixed_put(req, key, value);60 case I40E_DL_VERSION_RUNNING:61 return devlink_info_version_running_put(req, key, value);62 }63 return 0;64}65 66static int i40e_devlink_info_get(struct devlink *dl,67 struct devlink_info_req *req,68 struct netlink_ext_ack *extack)69{70 struct i40e_pf *pf = devlink_priv(dl);71 struct i40e_hw *hw = &pf->hw;72 char buf[32];73 int err;74 75 i40e_info_get_dsn(pf, buf, sizeof(buf));76 err = devlink_info_serial_number_put(req, buf);77 if (err)78 return err;79 80 i40e_info_fw_mgmt(hw, buf, sizeof(buf));81 err = i40e_devlink_info_put(req, I40E_DL_VERSION_RUNNING,82 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, buf);83 if (err)84 return err;85 86 i40e_info_fw_mgmt_build(hw, buf, sizeof(buf));87 err = i40e_devlink_info_put(req, I40E_DL_VERSION_RUNNING,88 "fw.mgmt.build", buf);89 if (err)90 return err;91 92 i40e_info_fw_api(hw, buf, sizeof(buf));93 err = i40e_devlink_info_put(req, I40E_DL_VERSION_RUNNING,94 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API,95 buf);96 if (err)97 return err;98 99 i40e_info_nvm_ver(hw, buf, sizeof(buf));100 err = i40e_devlink_info_put(req, I40E_DL_VERSION_RUNNING,101 "fw.psid.api", buf);102 if (err)103 return err;104 105 i40e_info_eetrack(hw, buf, sizeof(buf));106 err = i40e_devlink_info_put(req, I40E_DL_VERSION_RUNNING,107 DEVLINK_INFO_VERSION_GENERIC_FW_BUNDLE_ID,108 buf);109 if (err)110 return err;111 112 i40e_info_civd_ver(hw, buf, sizeof(buf));113 err = i40e_devlink_info_put(req, I40E_DL_VERSION_RUNNING,114 DEVLINK_INFO_VERSION_GENERIC_FW_UNDI, buf);115 if (err)116 return err;117 118 i40e_info_pba(hw, buf, sizeof(buf));119 err = i40e_devlink_info_put(req, I40E_DL_VERSION_FIXED,120 DEVLINK_INFO_VERSION_GENERIC_BOARD_ID, buf);121 122 return err;123}124 125static const struct devlink_ops i40e_devlink_ops = {126 .info_get = i40e_devlink_info_get,127};128 129/**130 * i40e_alloc_pf - Allocate devlink and return i40e_pf structure pointer131 * @dev: the device to allocate for132 *133 * Allocate a devlink instance for this device and return the private134 * area as the i40e_pf structure.135 **/136struct i40e_pf *i40e_alloc_pf(struct device *dev)137{138 struct devlink *devlink;139 140 devlink = devlink_alloc(&i40e_devlink_ops, sizeof(struct i40e_pf), dev);141 if (!devlink)142 return NULL;143 144 return devlink_priv(devlink);145}146 147/**148 * i40e_free_pf - Free i40e_pf structure and associated devlink149 * @pf: the PF structure150 *151 * Free i40e_pf structure and devlink allocated by devlink_alloc.152 **/153void i40e_free_pf(struct i40e_pf *pf)154{155 struct devlink *devlink = priv_to_devlink(pf);156 157 devlink_free(devlink);158}159 160/**161 * i40e_devlink_register - Register devlink interface for this PF162 * @pf: the PF to register the devlink for.163 *164 * Register the devlink instance associated with this physical function.165 **/166void i40e_devlink_register(struct i40e_pf *pf)167{168 devlink_register(priv_to_devlink(pf));169}170 171/**172 * i40e_devlink_unregister - Unregister devlink resources for this PF.173 * @pf: the PF structure to cleanup174 *175 * Releases resources used by devlink and cleans up associated memory.176 **/177void i40e_devlink_unregister(struct i40e_pf *pf)178{179 devlink_unregister(priv_to_devlink(pf));180}181 182/**183 * i40e_devlink_set_switch_id - Set unique switch id based on pci dsn184 * @pf: the PF to create a devlink port for185 * @ppid: struct with switch id information186 */187static void i40e_devlink_set_switch_id(struct i40e_pf *pf,188 struct netdev_phys_item_id *ppid)189{190 u64 id = pci_get_dsn(pf->pdev);191 192 ppid->id_len = sizeof(id);193 put_unaligned_be64(id, &ppid->id);194}195 196/**197 * i40e_devlink_create_port - Create a devlink port for this PF198 * @pf: the PF to create a port for199 *200 * Create and register a devlink_port for this PF. Note that although each201 * physical function is connected to a separate devlink instance, the port202 * will still be numbered according to the physical function id.203 *204 * Return: zero on success or an error code on failure.205 **/206int i40e_devlink_create_port(struct i40e_pf *pf)207{208 struct devlink *devlink = priv_to_devlink(pf);209 struct devlink_port_attrs attrs = {};210 struct device *dev = &pf->pdev->dev;211 int err;212 213 attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;214 attrs.phys.port_number = pf->hw.pf_id;215 i40e_devlink_set_switch_id(pf, &attrs.switch_id);216 devlink_port_attrs_set(&pf->devlink_port, &attrs);217 err = devlink_port_register(devlink, &pf->devlink_port, pf->hw.pf_id);218 if (err) {219 dev_err(dev, "devlink_port_register failed: %d\n", err);220 return err;221 }222 223 return 0;224}225 226/**227 * i40e_devlink_destroy_port - Destroy the devlink_port for this PF228 * @pf: the PF to cleanup229 *230 * Unregisters the devlink_port structure associated with this PF.231 **/232void i40e_devlink_destroy_port(struct i40e_pf *pf)233{234 devlink_port_unregister(&pf->devlink_port);235}236