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Nvmebios uefitool1/2/2023
FIRMWARE_REQUEST_FLAG_CONTROLLER is set in the flagsįirmwareRequest->Version = FIRMWARE_REQUEST_BLOCK_STRUCTURE_VERSION įirmwareRequest->Size = sizeof(FIRMWARE_REQUEST_BLOCK) įirmwareRequest->Function = FIRMWARE_FUNCTION_GET_INFO įirmwareRequest->Flags = FIRMWARE_REQUEST_FLAG_CONTROLLER įirmwareRequest->DataBufferOffset = firmwareInfoOffset įirmwareRequest->DataBufferLength = BufferLength - firmwareInfoOffset Set firmware request fields for FIRMWARE_FUNCTION_GET_INFO. SrbControl->Length = BufferLength - sizeof(SRB_IO_CONTROL) RtlMoveMemory(srbControl->Signature, IOCTL_MINIPORT_SIGNATURE_FIRMWARE, 8) SrbControl->ControlCode = IOCTL_SCSI_MINIPORT_FIRMWARE SrbControl->HeaderLength = sizeof(SRB_IO_CONTROL) Setup the SRB control with the firmware ioctl control info The STORAGE_FIRMWARE_INFO is located after SRB_IO_CONTROL and FIRMWARE_RESQUEST_BLOCKįirmwareInfoOffset = ((sizeof(SRB_IO_CONTROL) + sizeof(FIRMWARE_REQUEST_BLOCK) - 1) / sizeof(PVOID) + 1) * sizeof(PVOID) Index – the index of NVMe device in DeviceList array.ĭisplayResult – print information on screen or not.įirmwareRequest = (PFIRMWARE_REQUEST_BLOCK)(srbControl + 1) Retrieve the firmware and firmware slot information from NVMe controller.ĭeviceList – a pointer to device array that contains disks information. STORAGE_ADAPTER_DESCRIPTOR AdapterDescriptor A device list item structure for an adapter Nvmebios uefitool how to#The following example function shows how to retrieve the information for all the firmware slots on a selected NVMe device. Nvmebios uefitool upgrade#To find an available slot, an upgrade utility can send an information query to the device to receive the slot information descriptors. It is necessary to find an available slot for the firmware image to reside when it is activated after a download. Firmware slot informationįirmware images are maintained on the device in locations called slots. The firmware functions and associated structures are defined in ntddscsi.h. SRB_IO_CONTROL + FIRMWARE_REQUEST_BLOCK + STORAGE_FIRMWARE_ACTIVATE SRB_IO_CONTROL + FIRMWARE_REQUEST_BLOCK + STORAGE_FIRMWARE_DOWNLOAD SRB_IO_CONTROL + FIRMWARE_REQUEST_BLOCK + STORAGE_FIRMWARE_SLOT_INFO The following table lists each function command and the structures included in the system buffer for IOCTL_SCSI_MINIPORT. Each function command has a related information structure located after the FIRMWARE_REQUEST_BLOCK. The ControlCode member of SRB_IO_CONTROL is set to IOCTL_SCSI_MINIPORT_FIRMWARE to indicate a miniport firmware operation. This is determined by the NVMe controller.Įach function command is set in a FIRMWARE_REQUEST_BLOCK structure which is included with an SRB_IO_CONTROL in the buffer of an IOCTL_SCSI_MINIPORT request. Nvmebios uefitool download#Depending on the type of download and the changes in the firmware image, a reboot of the system may be required. The active firmware slot is then switched from the currently used slot to the slot assigned to the downloaded image. In order to make the downloaded image the active firmware image, it is assigned to slot. A portion of an image is limited by min( Controller Maximum Transfer Size, 512 KB). Depending on the size of the image, this occurs in a single transfer operation or in successive transfers of multiple portions of the image. Nvmebios uefitool update#All existing image data in the selected slot is overwritten when the update is completed.ĭownload the new firmware image for a selected slot. In order to update the device, a slot is chosen that is writeable and not currently active.
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