On Mon, Oct 21, 2024 at 06:42:24PM -0700, Lee Trager wrote:
> fbnic supports updating firmware using a PLDM image signed and distributed
> by Meta. PLDM images are written into stored flashed. Flashing does not
> interrupt operation.
>
> On host reboot the newly flashed UEFI driver will be used. To run new
> control or cmrt firmware the NIC must be power cycled.
>
> Signed-off-by: Lee Trager <lee@xxxxxxxxx>
...
> diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_devlink.c b/drivers/net/ethernet/meta/fbnic/fbnic_devlink.c
...
> @@ -109,8 +110,274 @@ static int fbnic_devlink_info_get(struct devlink *devlink,
> return 0;
> }
>
> +/**
> + * fbnic_send_package_data - Send record package data to firmware
> + * @context: PLDM FW update structure
> + * @data: pointer to the package data
> + * @length: length of the package data
> + *
> + * Send a copy of the package data associated with the PLDM record matching
> + * this device to the firmware.
> + *
> + * Return: zero on success
> + * negative error code on failure
> + */
> +static int fbnic_send_package_data(struct pldmfw *context, const u8 *data,
> + u16 length)
> +{
> + struct device *dev = context->dev;
> +
> + /* Temp placeholder required by devlink */
> + dev_info(dev,
> + "Sending %u bytes of PLDM record package data to firmware\n",
> + length);
Could you clarify what is meant by "Temp placeholder" here and in
fbnic_send_component_table(). And what plans there might be for
a non-temporary solution.
> +
> + return 0;
> +}
> +
> +/**
> + * fbnic_send_component_table - Send PLDM component table to the firmware
> + * @context: PLDM FW update structure
> + * @component: The component to send
> + * @transfer_flag: Flag indication location in component tables
> + *
> + * Read relevant data from component table and forward it to the firmware.
> + * Check response to verify if the firmware indicates that it wishes to
> + * proceed with the update.
> + *
> + * Return: zero on success
> + * negative error code on failure
> + */
> +static int fbnic_send_component_table(struct pldmfw *context,
> + struct pldmfw_component *component,
> + u8 transfer_flag)
> +{
> + struct device *dev = context->dev;
> + u16 id = component->identifier;
> + u8 test_string[80];
> +
> + switch (id) {
> + case QSPI_SECTION_CMRT:
> + case QSPI_SECTION_CONTROL_FW:
> + case QSPI_SECTION_OPTION_ROM:
> + break;
> + default:
> + dev_err(dev, "Unknown component ID %u\n", id);
> + return -EINVAL;
> + }
> +
> + dev_dbg(dev, "Sending PLDM component table to firmware\n");
> +
> + /* Temp placeholder */
> + strscpy(test_string, component->version_string,
> + min_t(u8, component->version_len, 79));
> + dev_info(dev, "PLDMFW: Component ID: %u version %s\n",
> + id, test_string);
> +
> + return 0;
> +}
...
