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Rao" Date: Wed, 29 Apr 2026 08:28:20 +0000 Subject: [PATCH net-next 4/6] pds_core: add PLDM component info display Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-ID: <20260429-b4-pldm-b4-v1-4-394fafba526f@amd.com> References: <20260429-b4-pldm-b4-v1-0-394fafba526f@amd.com> In-Reply-To: <20260429-b4-pldm-b4-v1-0-394fafba526f@amd.com> To: Brett Creeley , Andrew Lunn , "David S. Miller" , "Eric Dumazet" , Jakub Kicinski , Paolo Abeni , Kees Cook , "Gustavo A. R. Silva" CC: , , , "Nikhil P. 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This allows users to see individual firmware components, their versions, and update status via devlink info. Components are marked as fixed, running, or stored based on their flags. Example output: $ devlink dev info pci/0000:b5:00.0 ... versions: running: fw.goldfw 1.2.3 fw.mainfwa 1.2.4 fw.mainfwb 1.2.3 Signed-off-by: Brett Creeley --- drivers/net/ethernet/amd/pds_core/devlink.c | 75 ++++++++++++++++++++++++++--- 1 file changed, 69 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/amd/pds_core/devlink.c b/drivers/net/ethernet/amd/pds_core/devlink.c index 7f44e1a8d4fd..c519fde45d71 100644 --- a/drivers/net/ethernet/amd/pds_core/devlink.c +++ b/drivers/net/ethernet/amd/pds_core/devlink.c @@ -93,14 +93,61 @@ int pdsc_dl_flash_update(struct devlink *dl, return pdsc_firmware_update(pdsc, params, extack); } +static int pdsc_dl_component_info_get(struct devlink *dl, + struct devlink_info_req *req, + struct netlink_ext_ack *extack) +{ + struct pds_core_component_list_info *list_info; + struct pdsc *pdsc = devlink_priv(dl); + u8 num_components; + char buf[32]; + int err; + int i; + + err = pdsc_get_component_info(pdsc); + if (err) { + dev_err(pdsc->dev, "Failed to get component_info %pe", ERR_PTR(err)); + return err; + } + + list_info = &pdsc->fw_components; + num_components = min_t(u8, list_info->num_components, + le16_to_cpu(pdsc->dev_ident.max_fw_slots)); + for (i = 0; i < num_components; i++) { + enum devlink_info_version_type dl_ver_type = DEVLINK_INFO_VERSION_TYPE_NONE; + struct pds_core_fw_component_info *info = &list_info->info[i]; + u16 flags = le16_to_cpu(info->flags); + + snprintf(buf, sizeof(buf), "fw.%s", info->name); + if (flags & PDS_CORE_FW_COMPONENT_INFO_F_UPDATE_BY_NAME) + dl_ver_type = DEVLINK_INFO_VERSION_TYPE_COMPONENT; + + if (flags & PDS_CORE_FW_COMPONENT_INFO_F_FIXED) + err = devlink_info_version_fixed_put(req, buf, + info->version); + else if (flags & PDS_CORE_FW_COMPONENT_INFO_F_RUNNING) + err = devlink_info_version_running_put_ext(req, buf, + info->version, dl_ver_type); + else + err = devlink_info_version_stored_put_ext(req, buf, + info->version, dl_ver_type); + + if (err) + return err; + } + + return 0; +} + static char *fw_slotnames[] = { "fw.goldfw", "fw.mainfwa", "fw.mainfwb", }; -int pdsc_dl_info_get(struct devlink *dl, struct devlink_info_req *req, - struct netlink_ext_ack *extack) +static int pdsc_dl_fw_list_info_get(struct devlink *dl, + struct devlink_info_req *req, + struct netlink_ext_ack *extack) { union pds_core_dev_cmd cmd = { .fw_control.opcode = PDS_CORE_CMD_FW_CONTROL, @@ -132,11 +179,27 @@ int pdsc_dl_info_get(struct devlink *dl, struct devlink_info_req *req, return err; } - err = devlink_info_version_running_put(req, - DEVLINK_INFO_VERSION_GENERIC_FW, - pdsc->dev_info.fw_version); - if (err) + return devlink_info_version_running_put(req, + DEVLINK_INFO_VERSION_GENERIC_FW, + pdsc->dev_info.fw_version); +} + +int pdsc_dl_info_get(struct devlink *dl, struct devlink_info_req *req, + struct netlink_ext_ack *extack) +{ + struct pdsc *pdsc = devlink_priv(dl); + char buf[32]; + int err; + + if (pdsc->dev_ident.version >= PDS_CORE_IDENTITY_VERSION_2) + err = pdsc_dl_component_info_get(dl, req, extack); + else + err = pdsc_dl_fw_list_info_get(dl, req, extack); + if (err) { + dev_err(pdsc->dev, "Failed to get devlink info for identity version %u: %pe\n", + pdsc->dev_ident.version, ERR_PTR(err)); return err; + } snprintf(buf, sizeof(buf), "0x%x", pdsc->dev_info.asic_type); err = devlink_info_version_fixed_put(req, -- 2.43.0