1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 2023 Advanced Micro Devices, Inc */ 3 4 #include "core.h" 5 #include <linux/pds/pds_auxbus.h> 6 7 static struct 8 pdsc_viftype *pdsc_dl_find_viftype_by_id(struct pdsc *pdsc, 9 enum devlink_param_type dl_id) 10 { 11 int vt; 12 13 if (!pdsc->viftype_status) 14 return NULL; 15 16 for (vt = 0; vt < PDS_DEV_TYPE_MAX; vt++) { 17 if (pdsc->viftype_status[vt].dl_id == dl_id) 18 return &pdsc->viftype_status[vt]; 19 } 20 21 return NULL; 22 } 23 24 int pdsc_dl_enable_get(struct devlink *dl, u32 id, 25 struct devlink_param_gset_ctx *ctx) 26 { 27 struct pdsc *pdsc = devlink_priv(dl); 28 struct pdsc_viftype *vt_entry; 29 30 vt_entry = pdsc_dl_find_viftype_by_id(pdsc, id); 31 if (!vt_entry) 32 return -ENOENT; 33 34 ctx->val.vbool = vt_entry->enabled; 35 36 return 0; 37 } 38 39 int pdsc_dl_enable_set(struct devlink *dl, u32 id, 40 struct devlink_param_gset_ctx *ctx, 41 struct netlink_ext_ack *extack) 42 { 43 struct pdsc *pdsc = devlink_priv(dl); 44 struct pdsc_viftype *vt_entry; 45 int err = 0; 46 int vf_id; 47 48 vt_entry = pdsc_dl_find_viftype_by_id(pdsc, id); 49 if (!vt_entry || !vt_entry->supported) 50 return -EOPNOTSUPP; 51 52 if (vt_entry->enabled == ctx->val.vbool) 53 return 0; 54 55 vt_entry->enabled = ctx->val.vbool; 56 for (vf_id = 0; vf_id < pdsc->num_vfs; vf_id++) { 57 struct pdsc *vf = pdsc->vfs[vf_id].vf; 58 59 err = ctx->val.vbool ? pdsc_auxbus_dev_add(vf, pdsc) : 60 pdsc_auxbus_dev_del(vf, pdsc); 61 } 62 63 return err; 64 } 65 66 int pdsc_dl_enable_validate(struct devlink *dl, u32 id, 67 union devlink_param_value val, 68 struct netlink_ext_ack *extack) 69 { 70 struct pdsc *pdsc = devlink_priv(dl); 71 struct pdsc_viftype *vt_entry; 72 73 vt_entry = pdsc_dl_find_viftype_by_id(pdsc, id); 74 if (!vt_entry || !vt_entry->supported) 75 return -EOPNOTSUPP; 76 77 if (!pdsc->viftype_status[vt_entry->vif_id].supported) 78 return -ENODEV; 79 80 return 0; 81 } 82 83 int pdsc_dl_flash_update(struct devlink *dl, 84 struct devlink_flash_update_params *params, 85 struct netlink_ext_ack *extack) 86 { 87 struct pdsc *pdsc = devlink_priv(dl); 88 89 return pdsc_firmware_update(pdsc, params->fw, extack); 90 } 91 92 static char *fw_slotnames[] = { 93 "fw.goldfw", 94 "fw.mainfwa", 95 "fw.mainfwb", 96 }; 97 98 int pdsc_dl_info_get(struct devlink *dl, struct devlink_info_req *req, 99 struct netlink_ext_ack *extack) 100 { 101 union pds_core_dev_cmd cmd = { 102 .fw_control.opcode = PDS_CORE_CMD_FW_CONTROL, 103 .fw_control.oper = PDS_CORE_FW_GET_LIST, 104 }; 105 struct pds_core_fw_list_info fw_list; 106 struct pdsc *pdsc = devlink_priv(dl); 107 union pds_core_dev_comp comp; 108 char buf[32]; 109 int listlen; 110 int err; 111 int i; 112 113 mutex_lock(&pdsc->devcmd_lock); 114 err = pdsc_devcmd_locked(pdsc, &cmd, &comp, pdsc->devcmd_timeout * 2); 115 if (!err) 116 memcpy_fromio(&fw_list, pdsc->cmd_regs->data, sizeof(fw_list)); 117 mutex_unlock(&pdsc->devcmd_lock); 118 if (err && err != -EIO) 119 return err; 120 121 listlen = min(fw_list.num_fw_slots, ARRAY_SIZE(fw_list.fw_names)); 122 for (i = 0; i < listlen; i++) { 123 if (i < ARRAY_SIZE(fw_slotnames)) 124 strscpy(buf, fw_slotnames[i], sizeof(buf)); 125 else 126 snprintf(buf, sizeof(buf), "fw.slot_%d", i); 127 err = devlink_info_version_stored_put(req, buf, 128 fw_list.fw_names[i].fw_version); 129 if (err) 130 return err; 131 } 132 133 err = devlink_info_version_running_put(req, 134 DEVLINK_INFO_VERSION_GENERIC_FW, 135 pdsc->dev_info.fw_version); 136 if (err) 137 return err; 138 139 snprintf(buf, sizeof(buf), "0x%x", pdsc->dev_info.asic_type); 140 err = devlink_info_version_fixed_put(req, 141 DEVLINK_INFO_VERSION_GENERIC_ASIC_ID, 142 buf); 143 if (err) 144 return err; 145 146 snprintf(buf, sizeof(buf), "0x%x", pdsc->dev_info.asic_rev); 147 err = devlink_info_version_fixed_put(req, 148 DEVLINK_INFO_VERSION_GENERIC_ASIC_REV, 149 buf); 150 if (err) 151 return err; 152 153 return devlink_info_serial_number_put(req, pdsc->dev_info.serial_num); 154 } 155 156 int pdsc_fw_reporter_diagnose(struct devlink_health_reporter *reporter, 157 struct devlink_fmsg *fmsg, 158 struct netlink_ext_ack *extack) 159 { 160 struct pdsc *pdsc = devlink_health_reporter_priv(reporter); 161 162 mutex_lock(&pdsc->config_lock); 163 if (test_bit(PDSC_S_FW_DEAD, &pdsc->state)) 164 devlink_fmsg_string_pair_put(fmsg, "Status", "dead"); 165 else if (!pdsc_is_fw_good(pdsc)) 166 devlink_fmsg_string_pair_put(fmsg, "Status", "unhealthy"); 167 else 168 devlink_fmsg_string_pair_put(fmsg, "Status", "healthy"); 169 mutex_unlock(&pdsc->config_lock); 170 171 devlink_fmsg_u32_pair_put(fmsg, "State", 172 pdsc->fw_status & ~PDS_CORE_FW_STS_F_GENERATION); 173 devlink_fmsg_u32_pair_put(fmsg, "Generation", pdsc->fw_generation >> 4); 174 devlink_fmsg_u32_pair_put(fmsg, "Recoveries", pdsc->fw_recoveries); 175 176 return 0; 177 } 178