WO2023142114A1

WO2023142114A1 - Data processing method, apparatus, and electronic device

Info

Publication number: WO2023142114A1
Application number: PCT/CN2022/075186
Authority: WO
Inventors: 杨应琼
Original assignee: 华为技术有限公司
Priority date: 2022-01-30
Filing date: 2022-01-30
Publication date: 2023-08-03
Also published as: CN117396859A

Abstract

The present application provides a data processing method, an apparatus, and an electronic device. The data processing method of the present application comprises: generating a first universal flash storage (UFS) protocol information unit (UPIU), wherein the first UPIU comprises type notification information and description information of the first UPIU, the type notification information comprising a first type, a second type, or a third type, the first type being used for indicating that a second UPIU is ready, the second type being used for indicating that the second UPIU is not ready, the third type being used for indicating to delete at least one among a physical area descriptor of the UPIU indicated by the first type or a physical area descriptor of the UPIU indicated by the second type from a high-speed memory of a host, and the description information of the first UPIU comprises identification information of the first UPIU and a data buffer offset of the first UPIU; and sending the first UPIU. UFS data throughput rate can be improved by means of the present application, which is beneficial for improving data read/write performance.

Description

Data processing method, device and electronic device

technical field

The present application relates to the field of storage technology, and in particular to a data processing method, device and electronic equipment.

Background technique

Universal flash storage (UFS) is a flash memory system defined by the Joint Electron Device Engineering Council (JEDEC) standard, designed for applications with high data transfer speed and low power consumption. UFS can be suitable for applications with high data transmission speed and low power consumption requirements such as mobile applications and automotive applications. Mobile applications may include smartphones, laptops, tablets, and the like. UFS's high-speed serial interface and optimized protocol can significantly improve throughput and system performance.

The UFS system may include a UFS host (host) and a UFS device (device). FIG. 1 is a schematic structural diagram of a UFS system. As shown in FIG. 1 , a UFS device (device) may include a UFS device controller and multiple flash memory chips. A plurality of flash memory chips store data in a non-volatile manner, for example, the plurality of flash memory chips may be a plurality of not and (NAND) flash memory (NAND Flash) as shown in FIG. 1 . The UFS device controller controls multiple flash memory chips through the open NAND flash interface (open NAND Flash interface, ONFI). A UFS host (host) and a UFS device (device) can be connected through various interface standards to complete data processing operations such as read operations and write operations.

With the development of electronic technology, multimedia technology and Internet technology, more storage space, faster data storage or reading speed are often required. Therefore, how to improve the data read and write performance of the UFS system has become an urgent technical problem to be solved.

Contents of the invention

The present application provides a data processing method, device and electronic equipment, which can improve the UFS data throughput rate and are beneficial to improve data read and write performance.

The present application is introduced through multiple aspects below, and the implementation manners and beneficial effects of the following multiple aspects can be referred to each other.

In a first aspect, the present application provides a data processing method, which may include: generating a first universal flash storage UFS protocol information unit (UFS protocol information unit, UPIU), the first UPIU including prompt type information and a description of the first UPIU Information, the prompt type information includes the first type, the second type or the third type; the first type is used to indicate that the second UPIU is ready, the second type is used to indicate that the second UPIU is not ready, and the third type is used to indicate that the second UPIU is not ready. Indicates to delete at least one of the physical area descriptor of the UPIU indicated by the first type or the physical area descriptor of the UPIU indicated by the second type in the high-speed memory of the host; the physical area descriptor is used to represent the first of the host corresponding to the UPIU The location of a memory; the description information of the first UPIU includes the identification information of the first UPIU and the data cache offset of the first UPIU; a plurality of UPIUs for responding to the command includes the first UPIU and the second UPIU, and the command is used to request For writing data or reading data, the data cache offset of the first UPIU is used to indicate the position of the first UPIU among the multiple UPIUs used to respond to the command; sending the first UPIU.

The second UPIU is sent after the first UPIU, for example, the second UPIU is sent within a period of time after the first UPIU is sent.

Therefore, the hint type information is carried in the first UPIU sent, and the hint type information is used to instruct the host to adjust the physical area descriptor in the high-speed memory of the host, so that the adjusted physical area descriptor will be received later with a higher probability The hit rate of the high-speed memory of the host can be improved to achieve a better UFS data throughput rate, which is beneficial to improve data read and write performance.

For example, if the hint type information is the first type or the second type, before the host receives the second UPIU, it can prefetch the physical area descriptor of the second UPIU based on the hint type information carried by the first UPIU, and save it in in the host's high-speed memory. Afterwards, if the host receives the second UPIU, it can quickly obtain the physical area descriptor of the second UPIU from the high-speed memory, and then fetch data from the first memory of the host according to the physical area descriptor of the second UPIU, or send data to Writing data into the first memory of the host. In this way, before the host receives the second UPIU, the corresponding physical area descriptor is extracted in advance, which can increase the processing speed of the second UPIU, thereby improving data read and write performance.

The first memory is usually a power-off volatile memory, and its stored content will be lost when the power is off, and it can also be called a memory (Memory) or a main memory.

Prefetching in this application refers to fetching in advance or fetching in advance. That is, the host has extracted the physical area descriptor of the second UPIU before receiving the second UPIU, instead of extracting the physical area descriptor of the second UPIU when receiving the second UPIU. That is, the timing of extracting the physical area descriptor is earlier than the timing of the second UPIU arriving at the host.

In a possible design, generating the first universal flash storage UFS protocol information unit UPIU includes: obtaining the first data volume and the status information of the second UPIU; determining the status information of the first data volume and the second UPIU The prompt type information of the first UPIU.

The first data amount may also be referred to as a currently unfinished hint (hint outstanding) data amount.

The data volume of the currently outstanding hint (hint outstanding) refers to the data volume of the UPIU indicated by the hint information that has been sent but not sent. In some scenarios, the data size of the currently outstanding hint is 0KB. In some other scenarios, the data size of the currently outstanding prompt is greater than 0KB. Exemplarily, the data volume of the currently outstanding notification may include the data volume of the fourth UPIU indicated by the respective first type or the second type of at least one third UPIU, that is, the data volume of at least one fourth UPIU. At least one third UPIU is sent before sending the first UPIU, and at least one fourth UPIU is an unsent UPIU.

Thus, by acquiring the data volume corresponding to the currently unfinished prompt and the state information of the second UPIU, the prompt type information of the first UPIU is determined according to the data volume of the currently uncompleted prompt and the state information of the second UPIU. The prompt type information includes the first type, the second type or the third type. In this way, differentiated prompt type information is provided for different scenarios, so as to adapt to data transmission requirements of different scenarios.

In a possible design, according to the first data amount and the state information of the second UPIU, determining the prompt type information of the first UPIU includes: judging whether the first data amount is less than a first threshold; when the first data amount is less than When the first threshold is reached, the prompt type information of the first UPIU is determined according to the status information of the second UPIU, where the prompt type information includes the first type or the second type.

Therefore, when the first data amount is less than the first threshold, it means that the unfinished hints (hint outstanding) of the UFS device (device) are not exhausted, and the first type or the second type can be carried in the first UPIU, so that the host Before receiving the second UPIU, the physical area descriptor of the second UPIU may be prefetched based on the hint type information carried by the first UPIU, and stored in the high-speed memory of the host. Afterwards, if the host receives the second UPIU, it can quickly obtain the physical area descriptor of the second UPIU from the high-speed memory, which can increase the processing speed of the second UPIU, thereby improving data read and write performance.

In a possible design, according to the state information of the second UPIU, the prompt type information of the first UPIU is determined, and the prompt type information includes the first type or the second type, including:

Determine whether the status information of the second UPIU indicates that the second UPIU is ready; when the status information of the second UPIU indicates that the second UPIU is ready, determine that the prompt type information is the first type; when the second UPIU When the status information indicates that the second UPIU is not ready, it is determined that the prompt type information is the second type.

Thus, when the first data amount is smaller than the first threshold, different prompt type information is determined according to the status information of the second UPIU. When the status information of the second UPIU indicates that the second UPIU is ready, determine that the prompt type information is the first type, and when the status information of the second UPIU indicates that the second UPIU is not ready, determine the prompt type The information is of the second type, so that the host adjusts the physical area descriptor in the high-speed memory of the host based on different hint type information, so that the adjusted physical area descriptor is hit by the second UPIU received later with a higher probability . For example, the physical area description prefetched by the host based on the first type has a higher priority in the high-speed memory than the physical area description prefetched by the host based on the second type.

In a possible design, the method further includes: when the first data amount is equal to a first threshold, determining that the prompt type information is a third type.

Thus, when the first data amount is equal to the first threshold, it means that the unfinished hints of the UFS device (device) have been exhausted, and the type of hint information is determined to be the third type, and the host is deleted through the third type instruction At least one item of the physical area descriptor of the UPIU indicated by the first type or the physical area descriptor of the UPIU indicated by the second type in the high-speed memory. In this way, the problem that subsequent hint information cannot be sent due to the limitation of unfinished hint outstanding can be avoided.

In a possible design, determining that the prompt type information is the third type includes: determining that the prompt type information is the third type when the status information of the second UPIU indicates that the second UPIU is ready.

Therefore, when the first data amount is equal to the first threshold, and the status information of the second UPIU indicates that the second UPIU is ready, it is determined that the prompt information type is the third type, and the high-speed At least one item in the physical area descriptor of the UPIU indicated by the first type or the physical area descriptor of the UPIU indicated by the second type in the memory. In this way, the problem that the prompt information for indicating that the second UPIU is ready cannot be issued due to the limitation of unfinished hint outstanding can be avoided.

In a possible design, the first UPIU includes: ready-to-transmit RTT UPIU or read-in data UPIU.

When the command is used to request to write data, the first UPIU is ready for transmission RTT UPIU, when the command is used to request to read data, the first UPIU is the read data UPIU.

Thus, in the ready RTT UPIU in response to the command to read data or the read data UPIU in response to the command to read data, the prompt type information of the second UPIU sent later is carried, and the host is notified in advance of the adjustment through the prompt type information. The physical area descriptor in the high-speed memory of the host, so that the adjusted physical area descriptor is hit by the second UPIU received later with a higher probability, so that the hit rate of the high-speed memory of the host can be improved to achieve better The high UFS data throughput rate is beneficial to improve data read and write performance.

In a possible design, the prompt type information is located in the reserved field segment of the prompt information of the ready-to-transmit RTT UPIU or the read-in data UPIU.

Therefore, the reserved field segment of the prompt information of the transmission ready RTT UPIU or the read-in data UPIU can carry the prompt type information without adding a new field segment, so that the format of the UPIU carrying the prompt type information is consistent with the existing UFS protocol standard definition The format of the UPIU is the same, which is beneficial to improve the compatibility and implementability of the data processing method.

In a possible design, the method further includes: receiving a command UPIU; and generating a first UPIU in response to the command UPIU.

Thus, for the command UPIU requesting to write data or read data, the prompt type information is carried in the first UPIU responding to the command UPIU, so as to increase the data writing or reading speed.

In a second aspect, the present application provides a data processing method, which may include: receiving a first universal flash storage UFS protocol information unit (UFS protocol information unit, UPIU), the first UPIU including prompt type information and a description of the first UPIU Information, the prompt type information includes the first type, the second type or the third type; the first type is used to indicate that the second UPIU is ready, the second type is used to indicate that the second UPIU is not ready, and the third type is used to indicate that the second UPIU is not ready. Indicates to delete at least one of the physical area descriptor of the UPIU indicated by the first type or the physical area descriptor of the UPIU indicated by the second type in the high-speed memory of the host; the physical area descriptor is used to represent the host corresponding to the UPIU The location of the first memory; the description information of the first UPIU includes the identification information of the first UPIU and the data buffer offset of the first UPIU; a plurality of UPIUs for responding to the command includes the first UPIU and the second UPIU, and the command Used to request to write data or read data, the data cache offset of the first UPIU is used to indicate the position of the first UPIU among the multiple UPIUs used to respond to commands; according to the prompt type information, adjust the high speed of the host A physical region descriptor in memory.

In a possible design, the physical region descriptor in the high-speed memory of the host is adjusted according to the hint type information, including:

When the hint type information is the first type, prefetch the physical area descriptor corresponding to the hint type information of the first UPIU, and save it in the high-speed memory of the host with the first priority;

When the hint type information is the second type, prefetch the physical area descriptor corresponding to the hint type information of the first UPIU, and save it in the high-speed memory of the host with the second priority; the second priority is lower than the first priority class;

When the prompt type information is the third type, delete at least one item of the physical area descriptor of the UPIU indicated by the first type or the physical area descriptor of the UPIU indicated by the second type in the high-speed memory of the host.

In a possible design, before receiving the first UPIU, the method further includes: receiving at least one third UPIU, the first type or the second type included in each of the at least one third UPIU is used to indicate the respective corresponding first UPIU The four UPIUs are ready or not ready, and the physical area descriptor in the high-speed memory of the host includes the physical area descriptor of the fourth UPIU corresponding to each of the at least one third UPIU.

In a third aspect, the present application provides a data processing device, which includes: a controller and a transmission interface; the controller is used to generate a first universal flash storage UFS protocol information unit UPIU, and the first UPIU includes prompt type information and the description information of the first UPIU, the prompt type information includes the first type, the second type or the third type; the first type is used to indicate that the second UPIU is ready, and the second type is used to indicate the second UPIU Not ready, the third type is used to indicate to delete at least one of the physical area descriptor of the UPIU indicated by the first type or the physical area descriptor of the UPIU indicated by the second type in the high-speed memory of the host; the physical area The descriptor is used to indicate the location of the first memory of the host corresponding to the UPIU; the description information of the first UPIU includes the identification information of the first UPIU and the data cache offset of the first UPIU; multiple UPIU includes the first UPIU and the second UPIU, the command is used to request to write data or read data, the data buffer offset of the first UPIU is used to indicate that the first UPIU is used to respond to multiple UPIUs of the command The position in; the controller is further configured to send the first UPIU through the transmission interface.

In a possible design, the controller is configured to: obtain the first data amount and the state information of the second UPIU; the first data amount is the currently sent prompt information, but the data of the UPIU indicated by the prompt information has not been sent amount; according to the first data amount and the status information of the second UPIU, determine the prompt type information of the first UPIU.

In a possible design, the controller is configured to: determine whether the first data amount is smaller than a first threshold; when the first data amount is smaller than the first threshold, determine the first UPIU according to the state information of the second UPIU The prompt type information of the prompt type information includes the first type or the second type.

In a possible design, the controller is configured to: determine whether the status information of the second UPIU indicates that the second UPIU is ready; when the status information of the second UPIU indicates that the second UPIU is ready, determine the The prompt type information is the first type; when the status information of the second UPIU indicates that the second UPIU is not ready, it is determined that the prompt type information is the second type.

In a possible design, the controller is further configured to: when the first data amount is equal to the first threshold, determine that the prompt type information is a third type.

In a possible design, the controller is configured to: determine that the prompt type information is the third type when the status information of the second UPIU indicates that the second UPIU is ready.

In a possible design, the prompt type information is located in the reserved field segment of the prompt information of the transmission ready RTT UPIU or read-in data UPIU.

In a possible design, the controller is further configured to: receive a command UPIU through the transmission interface; and generate the first UPIU in response to the command UPIU.

In a fourth aspect, the present application provides a data processing device, which includes: a transmission interface, a controller, a high-speed memory, and a first memory; the controller is used to receive the first universal flash storage UFS protocol information unit UPIU, the first The UPIU includes prompt type information and description information of the first UPIU, the prompt type information includes the first type, the second type or the third type; the first type is used to indicate that the second UPIU is ready, and the second type is used In order to indicate that the second UPIU is not ready, the third type is used to indicate to delete at least one of the physical area descriptor of the UPIU indicated by the first type or the physical area descriptor of the UPIU indicated by the second type in the high-speed memory of the host. item; the physical area descriptor is used to indicate the location of the first memory corresponding to the UPIU; the description information of the first UPIU includes the identification information of the first UPIU and the data cache offset of the first UPIU; used for responding to commands The multiple UPIUs include the first UPIU and the second UPIU, the command is used to request to write data or read data, and the data cache offset of the first UPIU is used to indicate that the first UPIU is used to respond to the command Locations in multiple UPIUs; the controller is also used to adjust the physical area descriptor in the high-speed memory of the host according to the hint type information.

In a possible design, the controller is configured to: when the hint type information is the first type, prefetch the physical area descriptor corresponding to the hint type information of the first UPIU, and save it to the host's In the high-speed memory; when the hint type information is the second type, prefetch the physical area descriptor corresponding to the hint type information of the first UPIU, and save it in the high-speed memory of the host with the second priority; the second priority The level is lower than the first priority; when the prompt type information is the third type, delete the physical area descriptor of the UPIU indicated by the first type or the physical area description of the UPIU indicated by the second type in the high-speed memory of the host at least one of the characters.

In a possible design, the controller is further configured to receive at least one third UPIU through a transmission interface before receiving the first UPIU, and each of the at least one third UPIU includes a first type or a second type for Indicating that the corresponding fourth UPIU is ready or not ready, the physical area descriptor in the high-speed memory includes the physical area descriptor of the fourth UPIU corresponding to the at least one third UPIU.

In a fifth aspect, the present application provides a data processing apparatus, where the data processing apparatus is used as a storage device, for example, a UFS device. The data processing apparatus may be an electronic device or a chip or a system-on-a-chip in the electronic device, and may also be a functional module in the electronic device for realizing the first aspect or any possible design method of the first aspect. The device for data processing can realize the functions of the above-mentioned first aspect or each possible design of the first aspect, and the functions can be realized by executing corresponding software through hardware. The hardware or software includes one or more modules with corresponding functions described above. For example, the data processing apparatus may include: a UPIU generation module and a transceiver module.

In a sixth aspect, the present application provides a data processing device, where the data processing device serves as a host, for example, a UFS host. The data processing apparatus may be an electronic device or a chip or a system-on-chip in the electronic device, and may also be a functional module in the electronic device for realizing the second aspect or any possible design method of the second aspect. The device for data processing can realize the function of the second aspect or each possible design of the second aspect, and the function can be realized by executing corresponding software by hardware. The hardware or software includes one or more modules with corresponding functions described above. For example, the data processing apparatus may include: a UPIU processing module and a transceiver module.

In a seventh aspect, the present application provides a storage system, the storage system includes a storage device and a host; the storage device is used to execute the method according to the first aspect or any one of the first aspect, and the host is used to Execute the method as described in the second aspect or any one of the second aspect.

In an eighth aspect, the present application provides an electronic device, including: a host and a storage device coupled to the host; the host is used to execute the method as described in the second aspect or any one of the second aspect; the storage The device is used to execute the method according to the first aspect or any one of the first aspect.

In a ninth aspect, the present application provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a storage device, the method described in any one of the above-mentioned first aspects is implemented.

In a tenth aspect, the present application provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a host, the method described in any one of the above-mentioned second aspects is implemented.

In an eleventh aspect, the present application provides a computer program product, where the computer program product includes a computer program, and when the computer program is executed by a processor, the method described in any one of the above first aspects is implemented.

In a twelfth aspect, the present application provides a computer program product, the computer program product includes a computer program, and when the computer program is executed by a processor, the method described in any one of the above-mentioned second aspects is implemented.

It should be understood that the third aspect to the twelfth aspect of the present application are consistent with the technical solutions of the first aspect to the second aspect of the present application, and the beneficial effects obtained in each aspect and the corresponding feasible implementation modes are similar, and here Let me repeat.

Description of drawings

FIG. 1 is a schematic structural diagram of a UFS system according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a write operation provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of a read operation provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of sequential transmission of write operations provided by the embodiment of the present application;

FIG. 5 is a schematic diagram of out-of-order transmission of write operations provided by the embodiment of the present application;

FIG. 6 is a schematic diagram of a UFS device (device) 10 and a UFS host (host) 20 provided by an embodiment of the present application;

FIG. 7 is a flowchart of a data processing method provided in an embodiment of the present application;

FIG. 8A is a schematic diagram of a UPIU according to an embodiment of the present application;

FIG. 8B is a schematic diagram of the field segment composition of a UPIU provided by the embodiment of the present application;

FIG. 9 is a schematic diagram of a data processing method provided in an embodiment of the present application;

FIG. 10 is a flowchart of a data processing method provided in an embodiment of the present application;

FIG. 11 is a flow chart of a data processing method provided in an embodiment of the present application;

FIG. 12 is a flow chart of a data processing method provided in an embodiment of the present application;

FIG. 13 is a schematic diagram of a data processing device 1300 provided by an embodiment of the present application;

FIG. 14 is a schematic diagram of a data processing device 1400 provided by an embodiment of the present application;

FIG. 15 is a schematic diagram of an electronic device provided by an embodiment of the present application.

Detailed ways

A data processing method, device, and electronic device provided in the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The terms "first" and "second" in the specification and drawings of the present application are used to distinguish different objects, or to distinguish different processes for the same object, rather than to describe a specific sequence of objects.

In addition, the terms "including" and "having" mentioned in the description of the present application and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes other unlisted steps or units, or optionally also includes Other steps or elements inherent to the process, method, product or apparatus are included.

It should be noted that, in the embodiments of the present application, words such as "exemplary" or "for example" are used as examples, illustrations or descriptions. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design schemes. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete manner.

In the description of the present application, unless otherwise specified, the meaning of "plurality" refers to two or more. The "and/or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist at the same time, and B exists alone These three situations.

First, several technical terms involved in the embodiments of the present application are explained.

Universal flash storage protocol information unit (UFS protocol information unit, UPIU), is the carrier of command, data and status information transmission. UPIU is a data packet with a fixed format. UFS host (host) and UFS device (device) can interact through UPIU with different functions.

The UPIU may include a command UPIU, a data transfer UPIU, a status UPIU, and the like. Exemplarily, the command UPIU (Command UPIU) is a write command or a read command sent by the host (host) to the UFS device (device). Data transfer UPIU can include ready to transfer UPIU (ready to transfer UPIU, RTT UPIU), write data UPIU (DataOut UPIU) and read data UPIU (DataIn UPIU), etc. Among them, the ready to transfer UPIU (ready to transfer UPIU, RTT UPIU) is the UPIU sent by the UFS device (device) to the host (host) when processing the write command, and is used to inform the host (host) that it is ready to receive data. Write data UPIU (DataOut UPIU), which is the UPIU sent to the UFS device (device) after the host (host) receives the RTT UPIU, and is used to write data to the UFS device (device). Read in data UPIU (DataIn UPIU), which is the UPIU sent by the UFS device (device) to the host (host), and is used to transmit data to the host (host). The status UPIU may include a response UPIU (Response UPIU) and the like. Response UPIU (Response UPIU) is the UPIU sent by the UFS device (device) to the host (host), and is used to return the execution status of the write command or read command.

It should be noted that the UPIU may also include UPIUs with other functions, and this embodiment of the present application does not illustrate one by one.

NAND flash memory (NAND Flash) is a non-volatile random access storage medium, which is characterized by data not disappearing after power failure. The flash technology used in NAND flash memory (NAND Flash) can include single-level storage single-level cell (Single-LevelCell, SLC) (1bit/cell), multi-level cell (Multi-Level Cell, MLC) (2bit/cell), three Trinary-Level Cell (TLC) (3bit/cell), and even Quad-Level Cell (QLC) (4bit/cell) technology. The embodiment of the present application takes NAND flash memory (NAND Flash) using TLC technology as an example for illustration.

Write operation is the operation of writing data to NAND flash memory (NAND Flash). Fig. 2 is the synoptic diagram of the write operation that the embodiment of the present application provides, as shown in Fig. 2, write operation can pass above-mentioned order UPIU (Command UPIU), one or more RTT UPIU and write out data UPIU (DataOut UPIU), and response UPIU (Response UPIU) implementation.

The read operation is the operation of reading data from NAND flash memory (NAND Flash). Fig. 3 is the schematic diagram of the read operation that the embodiment of the present application provides, and as shown in Fig. 3, read operation can pass above-mentioned order UPIU (Command UPIU), one or more read in data UPIU (DataIn UPIU), and response UPIU (Response UPIU) implementation.

The above read and write operations can be implemented in an in order manner or out of order (ooo) manner.

In order (in order) execution, for write operations, the data buffer offsets of multiple RTT UPIUs are sequentially incremented, and for read operations, the data buffer offsets of multiple read-in data UPIUs (DataIn UPIUs) are The shift (data buffer offset) is sequentially increasing.

Taking the write operation as an example, Fig. 4 is a schematic diagram of the sequential transmission of the write operation provided by the embodiment of the present application. As shown in Fig. 4, the command UPIU (Command UPIU) is used to request the transmission of 48 kilobytes (Kbyte, KB) of data (that is, write 48KB of data), which is divided into two write-out data UPIU (DataOut UPIU) transmission, that is, write-out data UPIU 1 and write-out data UPIU 2. The data cache offset of RTT UPIU 1 and the data cache offset of RTT UPIU 2 are sequentially increasing.

Completing read or write operations in order often requires more internal caches and longer processing delays, that is, poor data read and write performance.

In out of order (ooo) execution, for write operations, the data buffer offset (data buffer offset) of multiple RTT UPIUs is non-sequentially incremented, and for read operations, multiple read-in data UPIUs (DataIn UPIU) The data cache offset for is non-sequentially increasing.

Taking the write operation as an example, FIG. 5 is a schematic diagram of the out-of-order transmission of the write operation provided by the embodiment of the present application. As shown in FIG. ), is divided into two write out data UPIU (DataOut UPIU) transmissions, that is, write out data UPIU 1 and write out data UPIU 2. The data cache offset of RTT UPIU 1 and the data cache offset of RTT UPIU 2 are non-sequentially increasing. The data cache offset of RTT UPIU 1 is 16KB, and the data cache offset of RTT UPIU 2 is 0KB.

Compared with the in-order execution method, the out-of-order (ooo) execution method to complete the read or write operation can reduce the amount of internal cached data and command execution time, which can improve data read and write performance .

The data processing method of the embodiment of the present application can be aimed at completing the read operation or the write operation through out of order (out of order, ooo) execution, so as to further improve the performance of data read and write. The data processing method of the present application will be specifically explained below using several embodiments.

The data processing method in the embodiment of the present application may be applied to the UFS system shown in FIG. 1 . Exemplarily, the UFS system may specifically have a structure as shown in FIG. 6, and FIG. 6 is a schematic diagram of a UFS device (device) 10 and a UFS host (host) 20 according to an embodiment of the present application. As shown in FIG. 6, the UFS The device (device) 10 can be any non-volatile memory that provides the function of writing/reading data for the UFS host (host) 20 . In the embodiment of the present application, the UFS device (device) 10 can be built in the UFS host (host) 20, and can also be set independently from the UFS host (host) 20. It can also be the UFS device (device) 10 and the UFS host ( host) 20 are co-located in one electronic device, which is not specifically limited in this application. UFS host (host) 20 or UFS equipment (device) 10 can specifically be a chip or a chipset or a circuit board equipped with a chip or chipset, and the chip or chipset or a circuit board equipped with a chip or chipset can be Work under software drive.

A UFS device (device) 10 may include a UFS device controller 101 and a non-volatile memory 102 . UFS device controller 101 is used to manage and control communication between UFS host (host) 20 and UFS device (device) 10, and provide standardization for communication between UFS host (host) 20 and UFS device (device) 10 (for example, the UFS standard of the embodiment of the present application). Specifically, the UFS device controller 101 may respond to commands sent by the UFS host (host) 20 (for example, commands such as write and read), perform corresponding operations, and return a completion status to the UFS host (host) 20. In the embodiment of the present application, the UFS device controller 101 can generate the first UPIU, the second UPIU, etc. involved in the present application according to the UFS protocol supported between the UFS host (host) 20 and the UFS device (device) 10, And the hint type information is carried in the generated first UPIU, so as to indicate the type of hint (hint) information to the UFS host (host) 20 . For details, please refer to the subsequent specific description of the data processing method, which will not be described in detail here. UFS equipment (device) 10 can also comprise transmission interface (not shown in the figure), and this transmission interface is used for receiving or sending UFS standard protocol packet, for example, sends the first UPIU involved in this application, the first UPIU involved in this application through this transmission interface. 2 Upiu et al.

The non-volatile memory 102 may include, but is not limited to, Flash memory (eg, NAND flash memory, NOR flash memory, etc.). In the embodiment of the present application, the non-volatile memory 102 is taken as an example for a plurality of NAND flash memories (NAND Flash).

A UFS host (host) 20 may include a host controller 201 , a high-speed memory 202 and a first memory 203 . Optionally, the UFS host (host) 20 may further include a processor 204 .

The host controller 201 is used to manage and control the communication between the UFS host (host) 20 and the UFS device (device) 10, and provide standardization ( For example, the interface of the UFS standard of the embodiment of the present application). Specifically, the host controller 201 may transmit commands (for example, commands such as write and read) and data to the UFS device (device) 10 according to the read/write commands issued by the processor 204 . The host controller 201 can convert the command or data into a UFS standard protocol packet by encapsulation, and for the UFS standard protocol packet received by the UFS host (host) 20 (for example, the first UPIU, the second UPIU involved in this application etc.), the host controller 201 can analyze it, complete the corresponding processing, and notify the processor 204 of the processing result. UFS host (host) 20 can also comprise transmission interface (not shown in the figure), and this transmission interface is used for receiving or sending UFS standard protocol packet, for example, receives the first UPIU involved in this application, the first UPIU involved in this application through this transmission interface. 2 Upiu et al.

The first memory 203 is usually a power-off volatile memory, and the content stored therein will be lost when the power is off, and may also be called a memory or a main memory. The first memory 203 in this application includes a readable and writable running memory, and its function is to temporarily store the operation data in the processor 204, command descriptor (command descriptor), and communicate with UFS device (device) 10 or other External memory exchange data. For example, data read from the UFS device (device) 10 or data written to the UFS device (device) 10 .

The first memory 203 may include one or more of dynamic random access memory (DRAM), static random access memory (SRAM), synchronous dynamic random access memory (SDRAM), and the like. Among them, DRAM includes double data rate synchronous dynamic random access memory (Double Data Rate Synchronous Dynamic Random Access Memory, DDR SDRAM) referred to as DDR, second generation double rate synchronous dynamic random access memory (DDR2), third generation double rate synchronous dynamic random access memory (DDR3 ), four generations of low power double data rate synchronous DRAM (Low Power Double DataRate 4, LPDDR4) and five generations of low power double data rate synchronous DRAM (Low Power Double DataRate 5, LPDDR5), etc.

The high-speed memory 202 in the embodiment of the present application is used to store a prefetched physical region descriptor (physical region descriptor), and the physical region descriptor may include a physical address (physical address) and a length. The physical region descriptor may be an entry of a physical region description table (Physical Region Description Table, PRDT). The physical area descriptor may be used by the host (host) to write data into the first memory 203 or retrieve data from the first memory 203 during the data read/write operation. In the embodiment of the present application, the physical area descriptor may be prefetched based on the RTT UPIU or the prompt information field segment read into the data UPIU, that is, the prefetched physical area descriptor to improve data read and write performance. In other words, there is a corresponding relationship between the prompt information field segment in the RTT UPIU or the read-in data UPIU and the prefetched physical area descriptor. The prefetching in this embodiment of the present application may also be understood as prefetching or prefetching. The content stored in the high-speed memory 202 can be dynamically adjusted.

The high-speed memory 202 is a memory capable of high-speed data exchange. The high-speed memory 202 may include one or more of a cache or a register.

The processor 204 can run an operating system, a file system (such as a flash file system F2FS), or an application program to control multiple hardware or software components connected to the processor 204, and can process various data and perform operations. The processor 204 can load the instructions or data stored in the UFS device (device) 10 into the first memory 203, and transfer the instructions or data that need to be calculated to the processor 204 for calculation. After the calculation is completed, the processor 204 can then The results are temporarily stored in the first memory 203 , and instructions or data that need long-term storage are stored in the UFS device (device) 10 through the host controller 201 . The processor 204 may include one or more processing units (also called processing cores), for example: the processor 204 may include a central processing unit (CPU), an application processing unit (application processor, AP), a modem processing unit, a graphics Processing unit (graphics processing unit, GPU), image signal processing unit (image signal processor, ISP), video codec unit, digital signal processing unit (digital signal processor, DSP), baseband processing unit and neural network processing unit (neural- One or more of network processing unit, NPU) and the like. Wherein, different processing units may be independent devices, or may be integrated in one or more devices. Further, the processor 204 may also be implemented as a system on chip (System on Chip, SoC).

The structure shown in the embodiment of the present application does not constitute a specific limitation of the UFS device (device) 10 or the UFS host (host) 20 . In other embodiments of the present application, UFS device (device) 10 or UFS host (host) 20 may include more or fewer components than shown in the figure, or combine some components, or split some components, or different layout of the components. The illustrated components can be realized in hardware, software or a combination of software and hardware.

The above-mentioned UFS device (device) 10 and UFS host (host) 20 can be used as a part of an electronic device (that is, they are co-located in the same electronic device), and the electronic device can include but not limited to a mobile phone, a tablet computer, a notebook computer, a super mobile personal computer (ultra-mobile personal computer, UMPC), handheld computer, netbook, personal digital assistant (PDA), wearable electronic devices, virtual reality (virtual reality, VR) equipment, augmented reality (augmented reality, AR) equipment , smart home devices, vehicle-mounted devices, and devices in the Internet of Things (Internet of Things, IoT), etc., or may also include servers or service clusters, which are not limited in this embodiment of the present application.

FIG. 7 is a flow chart of a data processing method provided by an embodiment of the present application. The data processing method of this embodiment involves a host and a storage device. Exemplarily, the host may be the UFS host (host) in the above embodiment. The The storage device may be the UFS device (device) of the foregoing embodiment, as shown in FIG. 7, the method may include:

S701. The storage device generates a first UPIU, where the first UPIU includes prompt type information and description information of the first UPIU.

Wherein, the hint type (hint type) information includes the first type, the second type or the third type. The first type is used to indicate that the second UPIU is ready. This second type is used to indicate that the second UPIU is not ready. The third type is used to indicate to delete at least one item of the physical area descriptor of the UPIU indicated by the first type or the physical area descriptor of the UPIU indicated by the second type in the high-speed memory of the host. The physical area descriptor is used to indicate the location of the first memory of the host corresponding to the UPIU. For example, the physical region descriptor may include a physical address and a length. The description information of the first UPIU may include identification information of the first UPIU and a data buffer offset (data buffer offset) of the first UPIU. Not ready in this embodiment of the present application refers to not being ready but predicted to be ready soon (for example, after a period of time). A plurality of UPIUs for responding to the command includes the first UPIU and the second UPIU, the command is used to request to write data or read data, and the data buffer offset (data buffer offset) of the first UPIU is used to represent the first UPIU The position of a UPIU among the UPIUs used to respond to commands.

Exemplarily, the first UPIU is generated after the storage device receives a command UPIU (Command UPIU) sent by the host. The command UPIU (Command UPIU) can be used to request to write data or read data, that is, write command or read command. The first UPIU may be any one of multiple RTT UPIUs in response to the command UPIU (Command UPIU) or any one of multiple read-in data UPIUs (DataIn UPIU). For example, taking the application scenario shown in Figure 5 as an example, the command UPIU (Command UPIU) can be the command UPIU (Command UPIU) shown in Figure 5, and the first UPIU can be RTT UPIU 1 or RTT UPIU 2. Taking the first UPIU as RTT UPIU 1 as an example, the description information of RTT UPIU 1 may include identification information of RTT UPIU 1 and a data buffer offset (data buffer offset) of RTT UPIU 1. The data buffer offset of the RTT UPIU 1 is 16KB. That is, for the command UPIU (Command UPIU) sent by the host, the storage device responds through two RTT UPIUs (ie, RTT UPIU 1 and RTT UPIU 2), and the data buffer offsets (data buffer offset) of the two RTT UPIUs are different.

The first UPIU may be an RTT UPIU, or may be a data-in UPIU (DataIn UPIU). The first UPIU may include multiple fields for carrying different information. Exemplarily, the first UPIU may include a hint (hint) field and a description field. The description field is used to carry relevant information of the current UPIU (that is, the first UPIU). Exemplarily, the description information of the first UPIU carried in the description field includes but not limited to identification information of the first UPIU and a data buffer offset (data buffer offset) of the first UPIU. Wherein, the identification information of the first UPIU may indicate a command to which the first UPIU belongs. The identification information of the first UPIU may include, but not limited to, an information identifier (information identifier, IID), a logical unit number (logical unit number, LUN) and a task tag (task tag). Optionally, the description information of the first UPIU may also include the data transfer count (data transfer count) of the first UPIU. The amount of data transfer (data transfer count) indicates the continuous data or space starting from the data buffer offset (data buffer offset). The unit of data transfer count may be 4KB. The description field may include multiple field segments to respectively carry various pieces of information included in the description information of the first UPIU. For example, FIG. 8A is a schematic diagram of a UPIU according to an embodiment of the present application. As shown in FIG. 8A, the UPIU may include a header (Header) domain and a data payload (data payload) domain, wherein the header (Header) domain may be It includes the aforementioned hint (hint) domain and description domain. The data payload field can carry the transmitted data. FIG. 8B is a schematic diagram of the composition of a UPIU domain segment according to an embodiment of the present application. As shown in FIG. 8B , the description domain may include an IID domain segment, a LUN domain segment, a task tag (task tag) domain segment, and a data cache offset ( data buffer offset) domain segment, data transfer count domain segment, etc. The hint (hint) field is used to carry the relevant information of the UPIU (ie the second UPIU) after the current UPIU (ie the first UPIU). In this embodiment of the present application, the hint (hint) field may carry the above hint type information. For example, the hint type information is carried in a reserved (reserved) field included in the hint (hint) field. Exemplarily, the prompt type information may be two-bit information. Of course, it can be understood that the prompt type information may also be more bit information, which is not specifically limited in this embodiment of the present application. The hint (hint) field may also carry hint control (hint control) information, hint UPIU identification information, and hint UPIU data buffer offset (hint data buffer offset), etc. The hint control (hint control) information is used to indicate whether the hint (hint) field carried by the current UPIU is valid. The identification information of the hint UPIU may include but not limited to hint information identifier (hint information identifier, hint IID), hint logical unit number (hint logical unit number, hint LUN) and hint task tag (hint task tag). The hint (hint) field may also carry hint data transfer count. Optionally, the hint data transfer count (hint data transfer count) represents the continuous data or space starting from the hint data buffer offset (hint data buffer offset) of the UPIU. Its unit may be 4KB. The hint (hint) field may include a plurality of field segments to respectively carry various pieces of information included in the above hint (hint) field. Take the domain segment composition of UPIU shown in Figure 8B as an example for further illustration, as shown in Figure 8B, the hint (hint) domain can include a hint control (hint control) domain segment, a hint type (hint type) domain segment, hint IID field, hint LUN field, hint task tag field, hint data buffer offset field, hint data transfer count field, etc.

The first type may also be referred to as a sure hint type. The second type may also be referred to as a normal hint (normal hint) type. The third type may also be called a delete hint (delete hint) type. It should also be noted that the names of the first type, the second type, and the first type are just examples, and do not limit the function of prompting type information. It may also have other names, which are not specifically limited in this embodiment of the present application.

It should also be noted that the hint (hint) in the embodiment of the present application may also be referred to as hint, advance instruction, etc., which is not specifically limited in the embodiment of the present application.

Exemplarily, the storage device may determine the first UPIU according to the data or space of the UPIU that is ready to be sent (that is, the second UPIU), or according to the data or space of the UPIU that is predicted to be ready (that is, the second UPIU). The hint information carried by a UPIU includes but not limited to the above hint type information.

S702. The storage device sends the first UPIU to the host.

Correspondingly, the host receives the first UPIU sent by the storage device.

S703. The host adjusts the physical area descriptor in the high-speed memory of the host according to the prompt type information.

The host parses the received first UPIU and obtains hint information. The host adjusts the physical area descriptor in the high-speed memory of the host according to the hint type information in the hint (hint) information.

Exemplarily, when the hint type information is the first type, the host may prefetch the physical area descriptor corresponding to the hint type information of the first UPIU, and store it in the high-speed memory of the host with the first priority. It should also be noted that, according to the information carried in the description field of the first UPIU, the host can also search whether there is a physical area descriptor corresponding to the information carried in the description field of the first UPIU in the high-speed memory, if not, then The host may also directly read the corresponding physical area descriptor from the main memory according to the information carried in the description field of the first UPIU. The embodiment of the present application does not specifically limit the operation performed by the host according to the information carried in the description field of the first UPIU.

When the hint type information is the second type, the host may prefetch the physical area descriptor corresponding to the hint type information of the first UPIU, and store it in the high-speed memory of the host with the second priority. The second priority is lower than the first priority.

The physical area descriptor corresponding to the hint type information of the first UPIU refers to the physical area descriptor of the UPIU (that is, the second UPIU) indicated by the hint type information of the first UPIU. Before the host receives the second UPIU, it prefetches the physical area descriptor of the second UPIU based on the prompt type information carried by the first UPIU, and stores it in the high-speed memory of the host. Afterwards, if the host receives the second UPIU, it can quickly obtain the physical area descriptor of the second UPIU from the high-speed memory, and then fetch data from the first memory of the host according to the physical area descriptor of the second UPIU, or send data to Writing data into the first memory of the host. In this way, before the host receives the second UPIU, the corresponding physical area descriptor is prefetched in advance, which can increase the processing speed of the second UPIU, thereby improving data read and write performance.

The physical area descriptor of the UPIU indicated by the first type (ie, the second UPIU) has a higher priority in the high-speed memory of the host than the physical area descriptor of the UPIU indicated by the second type (ie, the second UPIU). In this way, the hit rate of the high-speed memory can be improved, thereby achieving better data transmission performance. The hit rate of the high-speed memory is used to measure whether the physical area descriptor prefetched in the high-speed memory is the physical area descriptor of the UPIU received later. That is, whether the received RTT UPIU or the physical area descriptor of the read-in data UPIU (DataIn UPIU) exists in the high-speed memory.

When the prompt type information is the third type, the host may delete at least one item of the physical area descriptor of the UPIU indicated by the first type or the physical area descriptor of the UPIU indicated by the second type in the high-speed memory of the host. By deleting at least one of the physical area descriptor of the UPIU indicated by the first type or the physical area descriptor of the UPIU indicated by the second type in the high-speed memory of the host, the physical area description prefetched in the high-speed memory of the host is deleted descriptor, to release the resources of the high-speed memory, so that the host can prefetch new physical region descriptors based on the new prompt information sent by the storage device. The prompt information cannot be sent normally. Because, if the maximum outstanding hint (hint outstanding) is exceeded, the performance of the host will degrade, making it unable to process read or write commands in an optimal way.

In this embodiment, the storage device generates the first UPIU, where the first UPIU includes prompt type information. The prompt type information includes the first type, the second type or the third type. The first type is used to indicate that the second UPIU is ready. This second type is used to indicate that the second UPIU is not ready. The third type is used to indicate to delete at least one item of the physical area descriptor of the UPIU indicated by the first type or the physical area descriptor of the UPIU indicated by the second type in the high-speed memory of the host. The storage device sends the first UPIU to the host, and the host adjusts the physical area descriptor in the high-speed memory of the host according to the hint type information. The prompt type information instructs the host to adjust the physical area descriptor in the high-speed memory of the host, so that the adjusted physical area descriptor is hit by the second UPIU received later with a higher probability, thereby improving the performance of the high-speed memory of the host. Hit rate to achieve a better UFS data throughput rate, which is beneficial to improve data read and write performance.

FIG. 9 is a schematic diagram of a data processing method provided by the embodiment of the present application. The data processing method of this embodiment involves the UFS host (host) of the above embodiment and the UFS device (device) of the above embodiment, as shown in FIG. 9 , the method may include: (1) UFS host (host) performs command scheduling. That is, when the UFS host (host) obtains the read/write command of the upper-layer application, it triggers command scheduling, and converts the command into a command UPIU (Command UPIU) through encapsulation. Afterwards, (2) The UFS host (host) issues a command UPIU (Command UPIU) to the UFS device (device). (3) The UFS device (device) executes the command to prepare data or space for the UPIU. Specifically, if the command UPIU (Command UPIU) is used to request to write data, the UFS device (device) performs space preparation for UPIU, so as to receive the UPIU for writing data sent by the UFS host (host). If the command UPIU (Command UPIU) is used to request to read data, the UFS device (device) performs data preparation for UPIU, so as to send the read data UPIU (DataIn UPIU) to the UFS host (host). UFS device (device) performing data preparation for UPIU may include UFS device (device) performing data transfer. That is, the UFS device (device) takes the data out of the NAND flash memory, so that the data can be converted into read-in data UPIU (DataIn UPIU) by encapsulation, and sent to the UFS host (host). (4) The UFS device (device) generates differentiated prompt information according to the state of UPIU data or space preparation, and the prompt information is sent to the UFS host (host) along with the UPIU (ie, DataIn UPIU or RTT UPIU). For example, if the UFS device (device) has prepared the data or space of the current UPIU (for example, the above-mentioned first UPIU), and has prepared the data or space of the candidate UPIU (for example, the above-mentioned second UPIU) to be sent, then the generated The prompt type information included in the prompt information is the first type. For another example, the UFS device (device) has prepared the data or space of the current UPIU (for example, the above-mentioned first UPIU), and predicts that the data or space of the candidate UPIU (for example, the above-mentioned second UPIU) to be sent will be ready soon, then The prompt type information included in the generated prompt information is the second type. (5) The UFS host (host) parses the prompt information according to the received UPIU (that is, DataIn UPIU or RTT UPIU), and adjusts the physical area descriptor in the high-speed memory according to the prompt information. (6) The UFS host (host) performs data transfer according to the received UPIU (ie DataIn UPIU or RTT UPIU). For example, the UFS host (host) moves the data to the first storage according to the received DataIn UPIU. For another example, the UFS host (host) takes out data from the first memory according to the received RTT UPIU, so that the data is converted into a write-out data UPIU (DataOut UPIU) by encapsulation and sent to the UFS device (device). (7) After the UFS device (device) completes the command, it receives all the write data UPIU (DataOut UPIU) corresponding to the command UPIU (Command UPIU), or sends all the read data corresponding to the command UPIU (Command UPIU) ( DataIn UPIU), reply UPIU (Response UPIU) to the UFS host (host).

In this embodiment, the UFS host (host) performs command scheduling, the UFS device (device) executes the command, and performs UPIU data or space preparation, and the UFS device (device) generates differentiated prompts according to the status of UPIU data or space preparation Information, the prompt information includes prompt type information, the prompt information is sent to the UFS host (host) along with the UPIU (i.e. DataIn UPIU or RTT UPIU), and the UFS host (host) parses the received UPIU (i.e. DataIn UPIU or RTT UPIU) hint information, and adjust the physical area descriptor in the high-speed memory according to the hint type information. By adjusting the physical area descriptor in the high-speed memory of the host based on the prompt type information, the adjusted physical area descriptor is hit by the UPIU received later with a higher probability, thereby improving the hit rate of the high-speed memory of the host. In order to achieve a better UFS data throughput rate, it is beneficial to improve data read and write performance.

FIG. 10 is a flow chart of a data processing method provided by an embodiment of the present application. The data processing method of this embodiment may be executed by a storage device. Exemplarily, the storage device may be the UFS device (device) of the above embodiment. As shown in Figure 10, the method may include:

S1001. Obtain the data amount of the currently unfinished notification and the state information of the second UPIU.

The data volume of the currently unfinished hint (hint outstanding) may also be referred to as the first data volume. The data volume of the currently outstanding hint (hint outstanding) refers to the data volume of the UPIU indicated by the hint information that has been sent but not sent. In some scenarios, the data size of the currently outstanding hint is 0KB. For example, if no UPIU carrying prompt information has been sent before the first UPIU is sent, the data volume of the currently unfinished prompt is 0 KB. For another example, in a case where all the UPIUs corresponding to the sent prompt information have been sent before the first UPIU is sent, the data volume of the currently unfinished prompt is 0 KB. In some other scenarios, the data size of the currently outstanding prompt is greater than 0KB. Exemplarily, the data volume of the currently outstanding notification may include the data volume of the fourth UPIU indicated by the respective first type or the second type of at least one third UPIU, that is, the data volume of at least one fourth UPIU. The at least one fourth UPIU may include one fourth UPIU or a plurality of fourth UPIUs. Wherein, a fourth UPIU is a ready or unready UPIU indicated by the first type or the second type of a third UPIU. The multiple fourth UPIUs are ready or unready UPIUs indicated by the first type or the second type of the multiple third UPIUs. The unready UPIU in this embodiment of the present application refers to a UPIU that is not ready but is predicted to be ready soon (for example, after a period of time).

One or more third UPIUs are sent before sending the first UPIU, that is, the UFS device (device) has sent the UFS host (host). One or more fourth UPIUs are unsent UPIUs, that is, the UFS device (device) will send after indicating to the UFS host (host) through the hint information of one or more third UPIUs (hint), but has not yet sent UPIU.

The one or more fourth UPIUs may also be referred to as UPIUs indicated by an incomplete hint (hint outstanding).

Taking the data volume of the currently uncompleted prompt including the data volume of the fourth UPIU indicated by the first type or the second type of a third UPIU as an example, the data volume of the currently uncompleted prompt is explained. The currently unfinished hint data volume refers to the data volume indicated by the hint (hint) information of the third UPIU, which may be specifically equal to the hint data transfer count (hint data transfer count) of the third UPIU. Wherein, the hint (hint) information of the third UPIU is used to indicate the fourth UPIU. If the data volume of the current unfinished prompt includes the data volume of the fourth UPIU indicated by the first type or the second type of a plurality of third UPIUs, the data volume of the current unfinished prompt refers to the data volume of the multiple third UPIUs. The sum of the data amounts indicated by the respective hint (hint) information may specifically be equal to the sum of the hint data transfer counts (hint data transfer count) of multiple third UPIUs.

The state information of the second UPIU is used to indicate whether the second UPIU is ready or not.

S1002. Determine the prompt type information of the first UPIU according to the amount of currently unfinished prompt data and the status information of the second UPIU.

The prompt type information may include the first type, the second type, or the third type. For a specific explanation, refer to S701 in the embodiment shown in FIG. 7 , which will not be repeated here.

In this embodiment, the prompt type information of the first UPIU is determined according to the data volume of the currently unfinished prompt and the state information of the second UPIU by acquiring the data amount corresponding to the currently unfinished prompt and the state information of the second UPIU. The prompt type information includes the first type, the second type or the third type. The first type is used to indicate that the second UPIU is ready. This second type is used to indicate that the second UPIU is not ready. The third type is used to indicate to delete at least one item of the physical area descriptor of the UPIU indicated by the first type or the physical area descriptor of the UPIU indicated by the second type in the high-speed memory of the host. The prompt type information instructs the host to adjust the physical area descriptor in the host's high-speed memory, so that the adjusted physical area descriptor will be hit by the second UPIU received later with a higher probability, thereby improving the performance of the host's high-speed memory. Hit rate to achieve a better UFS data throughput rate, which is beneficial to improve data read and write performance.

FIG. 11 is a flow chart of a data processing method provided by an embodiment of the present application. The data processing method of this embodiment may be executed by a storage device. Exemplarily, the storage device may be the UFS device (device) of the above embodiment. As shown in Figure 11, the method may include:

S1101. Obtain the data amount of the currently unfinished notification and the status information of the second UPIU.

Wherein, for the specific explanation of S1101, reference may be made to the explanation of S1001 in the embodiment shown in FIG. 10 , which will not be repeated here.

Wherein, the trigger condition for executing S1101 may be that the first UPIU needs to be scheduled currently. That is, the first UPIU needs to be scheduled at present, and the hint (hint) information of the first UPIU is determined by performing S1101 to S1107, including but not limited to hint type information.

S1102. Determine whether the data volume of the currently unfinished prompt is less than the first threshold. When the data volume of the current unfinished prompt is less than the first threshold, execute S1103. When the data volume of the current unfinished prompt is equal to the first threshold, Execute S1106.

The first threshold can be reasonably set according to requirements. A unit of the first threshold may be 4KB. Usually, the first threshold is related to the resource size of the high-speed memory of the UFS host (host). The first threshold may be preset, or may be configured to the UFS device (device) by the UFS host (host) after power-on and before issuing the command. Exemplarily, taking UFS host (host) to dynamically configure UFS device (device) as an example, UFS host (host) can configure parameter (w) to UFS device (device), and this parameter (w) is used to limit UFS device ( The amount of UPIU data of the outstanding hint (hint outstanding) of device). The data volume of the UPIU of the maximum outstanding hint (hint outstanding) is represented by MAX hint outstanding. MAX hint outstanding = 32 x 2^w, unit 4KB. The first threshold can take a value of 32 x 2^w, of course it is understandable, and can also take any value smaller than 32 x 2^w. In this embodiment, the value of the first threshold is 32 x 2^w as an example. When the amount of currently unfinished hint data is less than the first threshold, it means that the unfinished hints (hint outstanding) of the UFS device (device) are not exhausted, and the hint outstanding can be carried in the first UPIU through S1103 to S1105. Type 1 or Type 2. When the data amount of the current unfinished hint is equal to the first threshold, it means that the unfinished hint (hint outstanding) of the UFS device (device) has been exhausted, and the hint type information carried in the first UPIU can be the third type through S1106 .

S1103, judging whether the state information of the second UPIU indicates that the second UPIU is ready, when the state information of the second UPIU indicates that the second UPIU is ready, execute S1104, when the state information of the second UPIU indicates that the second UPIU is not ready When ready, execute S1105.

S1104. Determine that the prompt type information carried by the first UPIU is the first type.

In the following scenario 1, the UFS device (device) may determine that the prompt type information carried by the first UPIU is the first type.

scene one

When the UFS device (device) needs to send the first UPIU, if it has prepared the data or space of the second UPIU to be sent subsequently, it will fill in the relevant information of the data or space of the second UPIU that has been prepared to be sent subsequently. The hint (hint) field of the first UPIU, which includes but not limited to hint type information is the first type, hint control (hint control) information, hint UPIU identification information, and hint data buffer offset (hint data buffer offset) of UPIU )wait.

After S1104 is executed, S1108 may be executed.

S1105. Determine that the prompt type information carried by the first UPIU is the second type.

In the following scenario two, the UFS device (device) may determine that the prompt type information carried by the first UPIU is the second type.

scene two

When the UFS device (device) needs to send the first UPIU, if the data or space of the second UPIU to be sent is not ready, the UFS device (device) predicts the data or space of the second UPIU that is about to be prepared, and sends The predicted data or space-related information of the second UPIU is filled into the prompt (hint) field of the first UPIU, which includes but is not limited to the prompt type information being the second type, prompt control (hint control) information, and prompt UPIU identification information , and prompt UPIU's data buffer offset (hint data buffer offset), etc. Exemplarily, the UFS device (device) predicts the data or space of the second UPIU that will be prepared later, and may use the time limitation and/or space limitation to predict the data or space of the second UPIU that will be prepared later .

After S1105 is executed, S1108 may be executed.

S1106. Determine whether the status information of the second UPIU indicates that the second UPIU is ready, and when the status information of the second UPIU indicates that the second UPIU is ready, execute S1107, and when the status information of the second UPIU indicates that the second UPIU is not ready When ready, execute S1106 repeatedly.

When the unfinished hints (hint outstanding) of the UFS device (device) have been exhausted, and the UFS device (device) has prepared the data or space of the second UPIU to be sent later when it needs to send the first UPIU, then it will The third type is filled into the hint type field field of the hint field of the first UPIU. In this way, the problem that subsequent hint information cannot be sent due to the limitation of unfinished hint outstanding can be avoided. When the unfinished hint (hint outstanding) of the UFS device (device) has been exhausted, and the UFS device (device) is not ready for the data or space of the second UPIU to be sent later when it needs to send the first UPIU, then you can Return to execute S1106.

S1107. Determine that the prompt type information carried by the first UPIU is the third type.

In the following scenario three, the UFS device (device) may determine that the prompt type information carried by the first UPIU is the third type.

scene three

When the unfinished prompt (hint outstanding) of the UFS device (device) has been exhausted, and the UFS device (device) has prepared the data or space of the second UPIU to be sent later when it needs to send the first UPIU, send the second UPIU Three types of hint type fields filled into the hint (hint) field of the first UPIU

After S1107 is executed, S1108 may be executed.

S1108. The UFS device (device) sends the first UPIU.

In this embodiment, when the UFS device (device) needs to send the first UPIU, it depends on whether the data or space of the second UPIU to be sent is ready, and whether the unfinished hint (hint outstanding) of the UFS device (device) is Exhausted, generate differentiated hint type information, and fill in the hint (hint) field of the first UPIU. UFS devices (device) can provide differentiated prompt type information for different scenarios, so as to adapt to the data transmission requirements of different scenarios. The UFS host (host) can adjust the physical area descriptor in the high-speed memory based on the hint type information to improve the hit rate of the high-speed memory, so as to achieve a better UFS data throughput rate, which is beneficial to improve data read and write performance.

Fig. 12 is a flow chart of a data processing method provided by the embodiment of the present application. The data processing method of this embodiment can be executed by a host. Exemplarily, the host can be the UFS host (host) of the above embodiment, as shown in FIG. 12, the method may include:

S1201. Receive a first UPIU, and parse the first UPIU to obtain hint (hint) information of the first UPIU, where the hint (hint) information includes hint type information.

Exemplarily, the UFS host (host) may parse the first UPIU, and obtain hint type information from a hint type (hint type) field segment of the first UPIU. The UFS host (host) can also obtain other hint information from other domain segments of the hint (hint) domain of the first UPIU, for example, hint control (hint control) information, the identification information of the hint UPIU, and the data cache offset of the hint UPIU shift (hint data buffer offset), etc.

After executing S1201, execute S1202 or S1203 or S1204.

S1202. If the hint type information is the first type, prefetch the physical area descriptor corresponding to the hint type information of the first UPIU, and save it in the high-speed memory of the host with the first priority.

The physical area descriptor corresponding to the hint type information of the first UPIU refers to the physical area descriptor of the UPIU (that is, the second UPIU) indicated by the hint type information of the first UPIU. If the physical area descriptor of the UPIU (i.e. the second UPIU) indicated by the hint type information of the first UPIU is not in the high-speed memory of the host, then prefetch the physical area descriptor and save it in the high-speed memory with high priority . If the physical area descriptor of the UPIU (that is, the second UPIU) indicated by the prompt type information of the first UPIU is already in the high-speed memory of the host, a corresponding strategy can be adopted (for example, the activity of the physical area descriptor is increased, etc.) , to prevent being replaced until the second UPIU is received.

S1203. If the hint type information is the second type, prefetch the physical area descriptor corresponding to the hint type information of the first UPIU, and store it in the high-speed memory of the host with the second priority.

The second priority is lower than the first priority.

Through S1202 or S1203, the high-speed memory of the UFS host (host) stores the physical area descriptor of the UPIU (that is, the second UPIU) indicated by the prompt type information of the first UPIU. Afterwards, if the UFS host (host) receives The second UPIU can quickly obtain the physical area descriptor of the second UPIU from the high-speed memory, and then fetch data from the first memory of the host according to the physical area descriptor of the second UPIU, or send data to the first memory of the host Write data in. In this way, data read and write performance can be improved.

The physical area descriptor stored in the high-speed memory of the UFS host (host) corresponds to the prompt information of the first UPIU. The prompt information includes, but is not limited to, one or more items such as prompting UPIU identification information, or prompting UPIU data buffer offset (hint data buffer offset). Afterwards, the UFS host (host) receives the second UPIU, and can use one or more items such as the identification information of the second UPIU or the data buffer offset (data buffer offset) of the second UPIU as an index to quickly retrieve the data from the high-speed memory. Obtain the physical area descriptor of the second UPIU.

S1204. If the prompt type information is the third type, delete at least one item of the physical area descriptor of the UPIU indicated by the first type or the physical area descriptor of the UPIU indicated by the second type in the high-speed memory of the host.

The UFS host (host) deletes at least one of the physical area descriptor of the UPIU indicated by the first type or the physical area descriptor of the UPIU indicated by the second type in the high-speed memory of the host according to the third type of instruction, so as to Release the unfinished hint (hint outstanding) of the UFS device (device), so that the unfinished hint (hint outstanding) after release can be used to send other hints (hint) information of the prepared UPIU.

In this embodiment, the UFS host (host) can adjust the physical area descriptor in the high-speed memory based on the hint type information to improve the hit rate of the high-speed memory, so as to achieve a better UFS data throughput rate, which is beneficial to improving data read and write performance.

Based on the above-mentioned similar technical concept, the embodiment of the present application provides a data processing device, which can be a storage device in any possible design scheme of the method of the foregoing embodiment, for example, a UFS device, the data The apparatus for processing includes at least one corresponding unit for executing the method steps or operations or behaviors performed by the storage device in the data processing method provided above. Wherein, the setting of the at least one unit may have a one-to-one correspondence with the method steps or operations or behaviors performed by the storage device. These units may be realized by computer programs, hardware circuits, or a combination of computer programs and hardware circuits.

According to the foregoing method, FIG. 13 is a schematic diagram of a data processing apparatus 1300 provided in an embodiment of the present application.

Wherein, the data processing apparatus 1300 may be a chip or a circuit, such as a chip or a circuit that may be provided in an electronic device.

The data processing apparatus 1300 may include a UPIU generation unit 1310 and a transceiver unit 1330 .

The UPIU generation unit 1310 is configured to generate a first universal flash storage UFS protocol information unit UPIU, the first UPIU includes prompt type information and description information of the first UPIU, the prompt type information includes the first type, the second type or The third type; the first type is used to indicate that the second UPIU is ready, the second type is used to indicate that the second UPIU is not ready, and the third type is used to indicate the deletion of the first type indicated in the high-speed memory of the host At least one of the physical area descriptor of the UPIU or the physical area descriptor of the UPIU indicated by the second type; the physical area descriptor is used to indicate the location of the first memory of the host corresponding to the UPIU; the description of the first UPIU The information includes the identification information of the first UPIU and the data cache offset of the first UPIU; the multiple UPIUs used to respond to the command include the first UPIU and the second UPIU, and the command is used to request to write data or read data, and the first The data buffer offset of the UPIU is used to indicate the position of the first UPIU among the multiple UPIUs used to respond to the command; the transceiver unit 1330 is configured to send the first UPIU.

In some embodiments, the UPIU generation unit 1310 is configured to: obtain the first data amount and the state information of the second UPIU, the first data amount includes at least one third UPIU indicated by the respective first type or second type The data amount of the fourth UPIU; the at least one third UPIU is sent before sending the first UPIU, and at least one fourth UPIU is an unsent UPIU; according to the first data amount and the state information of the second UPIU , determine the prompt type information of the first UPIU.

In some embodiments, the UPIU generating unit 1310 is configured to: determine whether the first data amount is less than a first threshold; when the first data amount is less than the first threshold, determine the second UPIU according to the state information of the second UPIU A prompt type information of the UPIU, where the prompt type information includes the first type or the second type.

In some embodiments, the UPIU generating unit 1310 is configured to: determine whether the status information of the second UPIU indicates that the second UPIU is ready; when the status information of the second UPIU indicates that the second UPIU is ready, determining that the prompt type information is the first type; when the status information of the second UPIU indicates that the second UPIU is not ready, determining that the prompt type information is the second type.

In some embodiments, the UPIU generating unit 1310 is further configured to: when the first data amount is equal to the first threshold, determine that the prompt type information is a third type.

In some embodiments, the UPIU generating unit 1310 is configured to: determine that the prompt type information is the third type when the status information of the second UPIU indicates that the second UPIU is ready.

In some embodiments, the first UPIU includes: a ready-to-transmit RTT UPIU or a read-in data UPIU.

In some embodiments, the hint type information is located in the reserved field section of the hint information of the ready-to-transmit RTT UPIU or read-in data UPIU.

In some embodiments, the UPIU generating unit 1310 is further configured to: receive a command UPIU; and generate the first UPIU in response to the command UPIU.

Each unit in the above-mentioned embodiments may also be called a module or a circuit or a component.

For the concepts, explanations, detailed descriptions and other steps involved in the data processing device 1300 related to the technical solutions provided by the embodiments of the present application, please refer to the foregoing methods or descriptions of these contents in other embodiments, and details are not repeated here.

Based on the above-mentioned similar technical concept, the embodiment of the present application provides a data processing device. The data processing device can be a host in any possible design scheme of the methods in the foregoing embodiments, for example, a UFS host. The data processing The device includes at least one corresponding unit for executing the method steps or operations or behaviors performed by the host in the data processing method provided above. Wherein, the configuration of the at least one unit may have a one-to-one correspondence with the method steps or operations or behaviors performed by the host. These units may be realized by computer programs, hardware circuits, or a combination of computer programs and hardware circuits.

According to the foregoing method, FIG. 14 is a schematic diagram of a data processing apparatus 1400 provided in an embodiment of the present application.

Wherein, the data processing apparatus 1400 may be a chip or a circuit, such as a chip or a circuit that may be provided in an electronic device.

The data processing apparatus 1400 may include a UPIU processing unit 1410 and a transceiver unit 1430 .

The UPIU processing unit 1410 is configured to receive the first universal flash storage UFS protocol information unit UPIU through the transceiver unit 1430, the first UPIU includes prompt type information and description information of the first UPIU, the prompt type information includes the first type, the second type or the third type; the first type is used to indicate that the second UPIU is ready, the second type is used to indicate that the second UPIU is not ready, and the third type is used to indicate to delete the first type in the high-speed memory of the host At least one of the physical area descriptor of the indicated UPIU or the physical area descriptor of the UPIU indicated by the second type; the physical area descriptor is used to indicate the location of the first memory of the host corresponding to the UPIU; the first The description information of UPIU includes the identification information of the first UPIU and the data cache offset of the first UPIU; the multiple UPIUs used to respond to the command include the first UPIU and the second UPIU, and the command is used to request writing data or reading To fetch data, the data cache offset of the first UPIU is used to indicate the position of the first UPIU among the multiple UPIUs used to respond to the command; the UPIU processing unit 1410 is also used to adjust the high-speed memory of the host according to the prompt type information The physical region descriptor in .

In a possible design, the UPIU processing unit 1410 is configured to: when the hint type information is the first type, prefetch the physical area descriptor corresponding to the hint type information of the first UPIU, and save it to In the high-speed memory of the host; when the prompt type information is the second type, prefetch the physical area descriptor corresponding to the prompt type information of the first UPIU, and save it in the high-speed memory of the host with the second priority; the second The second priority is lower than the first priority; when the hint type information is the third type, delete the physical area descriptor of the UPIU indicated by the first type or the physical area descriptor of the UPIU indicated by the second type in the high-speed memory of the host. At least one item in the region descriptor.

In a possible design, the UPIU processing unit 1410 is further configured to receive at least one third UPIU through the transceiver unit 1430 before receiving the first UPIU, the at least one third UPIU each including the first type or the second type For indicating that the respective fourth UPIUs are ready or not ready, the physical area descriptor in the high-speed memory of the host includes the physical area descriptors of the fourth UPIUs corresponding to the at least one third UPIU.

For the concepts, explanations, detailed descriptions and other steps involved in the data processing device 1400 related to the technical solutions provided by the embodiments of the present application, please refer to the foregoing methods or descriptions of these contents in other embodiments, and details are not repeated here.

It can be understood that, in order to realize the above functions, the electronic device includes hardware and/or software modules corresponding to each function. Combining the algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions in combination with the embodiments for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

FIG. 15 is a schematic diagram of a possible composition of an electronic device 1500 provided by an embodiment of the present application. As shown in FIG. 15 , the electronic device 1500 may include: a host 1501 and a storage device 1502 .

Among them, the storage device 1502 can be used to support the electronic device 1500 to execute the steps performed by the storage device in the above method embodiments, such as the above-mentioned S701 and S702, S1001 and S1002, or S1101 to S1108, etc., and/or for the steps described herein other processes of technology.

The host 1501 may be used to support the steps performed by the host in the above-mentioned method embodiments of the electronic device 1500, for example, perform the above-mentioned S703, S1201 to S1204, etc., and/or other processes for the technologies described herein.

It should be noted that all relevant content of the steps involved in the above method embodiments can be referred to the function description of the corresponding function module, and will not be repeated here.

The electronic device provided in this embodiment is used to execute the above data processing method, so it can achieve the same effect as the above implementation method.

It can be understood that the electronic device 1500 may include more or fewer components than shown, or combine some components, or separate some components, or arrange different components. The illustrated components can be implemented in hardware, software, or a combination of software and hardware. For example, the electronic device 1500 may also include a radio frequency circuit, a Bluetooth chip, a Wi-Fi chip, etc., and this embodiment of the present application does not illustrate one by one.

This embodiment also provides a computer storage medium, in which computer instructions are stored, and when the computer instructions are run on the storage device, the storage device is made to execute the above-mentioned relevant method steps to implement the data processing method in the above-mentioned embodiment.

This embodiment also provides a computer storage medium, in which computer instructions are stored, and when the computer instructions are run on the host, the host executes the above related method steps to implement the data processing method in the above embodiments.

This embodiment also provides a computer program product, which, when running on a computer, causes the computer to execute the above related steps, so as to implement the data processing method in the above embodiment.

In addition, an embodiment of the present application also provides a device, which may specifically be a chip, a component or a module, and the device may include a connected processor and a memory; wherein the memory is used to store computer-executable instructions, and when the device is running, The processor can execute the computer-executable instructions stored in the memory, so that the chip executes the data processing methods in the foregoing method embodiments.

Wherein, the electronic device, computer storage medium, computer program product or chip provided in this embodiment is all used to execute the corresponding method provided above, therefore, the beneficial effects it can achieve can refer to the corresponding method provided above The beneficial effects in the method will not be repeated here.

Through the description of the above embodiments, those skilled in the art can understand that for the convenience and brevity of the description, only the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned functions can be assigned by different Completion of functional modules means that the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

In the several embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or It may be integrated into another device, or some features may be omitted, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

A unit described as a separate component may or may not be physically separated, and a component shown as a unit may be one physical unit or multiple physical units, which may be located in one place or distributed to multiple different places. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If an integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the software product is stored in a storage medium Among them, several instructions are included to make a device (which may be a single-chip microcomputer, a chip, etc.) or a processor (processor) execute all or part of the steps of the methods in various embodiments of the present application. The aforementioned storage medium includes: various media that can store program codes such as U disk, mobile hard disk, read only memory (ROM), random access memory (random access memory, RAM), magnetic disk or optical disk.

Claims

A data processing method, characterized in that the method comprises:

Generate the first universal flash storage UFS protocol information unit UPIU, the first UPIU includes prompt type information and description information of the first UPIU, the prompt type information includes the first type, the second type or the third type; The first type is used to indicate that the second UPIU is ready, the second type is used to indicate that the second UPIU is not ready, and the third type is used to indicate that the first type indicated in the high-speed memory of the host is deleted. At least one of the physical area descriptor of the UPIU or the physical area descriptor of the UPIU indicated by the second type; the physical area descriptor is used to indicate the location of the first memory of the host corresponding to the UPIU; The description information of the first UPIU includes the identification information of the first UPIU and the data cache offset of the first UPIU; the data cache offset of the first UPIU is used to indicate that the first UPIU is used for response A location in a plurality of UPIUs for a command requesting to write data or to read data;

Send the first UPIU.
The method according to claim 1, wherein said generating the first universal flash storage UFS protocol information unit UPIU includes:

Obtaining the first data volume and the state information of the second UPIU, the first data volume is the data volume of the UPIU indicated by the prompt information that has not been sent yet;

Determine prompt type information of the first UPIU according to the first data amount and the state information of the second UPIU.
The method according to claim 2, wherein the determining the prompt type information of the first UPIU according to the first amount of data and the state information of the second UPIU includes:

judging whether the first amount of data is smaller than a first threshold;

When the first data amount is smaller than the first threshold, according to the state information of the second UPIU, determine prompt type information of the first UPIU, where the prompt type information includes the first type or the second type.
The method according to claim 3, wherein the prompt type information of the first UPIU is determined according to the status information of the second UPIU, and the prompt type information includes the first type or the second type, include:

judging whether the state information of the second UPIU indicates that the second UPIU is ready;

When the state information of the second UPIU indicates that the second UPIU is ready, determining that the prompt type information is the first type;

When the status information of the second UPIU indicates that the second UPIU is not ready, determine that the prompt type information is the second type.
The method according to claim 3 or 4, wherein the method further comprises:

When the first data amount is equal to the first threshold, it is determined that the prompt type information is the third type.
The method according to claim 5, wherein the determining that the prompt type information is the third type comprises:

When the status information of the second UPIU indicates that the second UPIU is ready, determine that the prompt type information is the third type.
The method according to any one of claims 1 to 6, wherein the first UPIU comprises: ready for transmission RTT UPIU or read-in data UPIU.
The method according to claim 7, wherein the prompt type information is located in the reserved field segment of the prompt information of the RTT UPIU or the read-in data UPIU.
The method according to any one of claims 1 to 8, further comprising:

Receive command UPIU;

The first UPIU is generated in response to the command UPIU.
A data processing method, characterized in that the method comprises:

Receive the first universal flash storage UFS protocol information unit UPIU, the first UPIU includes prompt type information and description information of the first UPIU, the prompt type information includes the first type, the second type or the third type; The first type is used to indicate that the second UPIU is ready, the second type is used to indicate that the second UPIU is not ready, and the third type is used to indicate that the first type indicated in the high-speed memory of the host is deleted. At least one of the physical area descriptor of the UPIU or the physical area descriptor of the UPIU indicated by the second type; the physical area descriptor is used to indicate the location of the first memory of the host corresponding to the UPIU; The description information of the first UPIU includes the identification information of the first UPIU and the data cache offset of the first UPIU; the data cache offset of the first UPIU is used to indicate that the first UPIU is used for response A location in a plurality of UPIUs for a command requesting to write data or to read data;

According to the hint type information, the physical area descriptor in the high-speed memory of the host is adjusted.
The method according to claim 10, wherein the adjusting the physical area descriptor in the high-speed memory of the host according to the prompt type information comprises:

When the hint type information is the first type, prefetch the physical area descriptor corresponding to the hint type information of the first UPIU, and save it in the high-speed memory of the host with the first priority;

When the hint type information is the second type, prefetch the physical area descriptor corresponding to the hint type information of the first UPIU, and save it in the high-speed memory of the host with the second priority; the second a priority lower than said first priority;

When the prompt type information is the third type, delete at least one of the physical area descriptor of the UPIU indicated by the first type or the physical area descriptor of the UPIU indicated by the second type in the high-speed memory of the host item.
The method according to claim 10 or 11, wherein the first UPIU comprises: ready for transmission RTT UPIU or read-in data UPIU.
The method according to claim 12, wherein the prompt type information is located in the reserved field segment of the prompt information of the transmission ready RTT UPIU or read-in data UPIU.
A data processing device, characterized in that the device includes: a controller and a transmission interface;

The controller is configured to generate a first universal flash storage UFS protocol information unit UPIU, the first UPIU includes hint type information and description information of the first UPIU, the hint type information includes first type, second type or the third type; the first type is used to indicate that the second UPIU is ready, the second type is used to indicate that the second UPIU is not ready, and the third type is used to indicate deletion of the host's high-speed memory At least one of the physical area descriptor of the UPIU indicated by the first type or the physical area descriptor of the UPIU indicated by the second type; the physical area descriptor is used to indicate the host corresponding to the UPIU The location of the first memory; the description information of the first UPIU includes the identification information of the first UPIU and the data cache offset of the first UPIU; the data cache offset of the first UPIU is used to represent the the position of the first UPIU among the plurality of UPIUs for responding to a command requesting to write data or to read data;

The controller is further configured to send the first UPIU through the transmission interface.
The device according to claim 14, wherein the controller is configured to: obtain the first data volume and the status information of the second UPIU, the first data volume is currently sent prompt information, but not sent The data amount of the UPIU indicated by the prompt information; according to the first data amount and the state information of the second UPIU, determine the prompt type information of the first UPIU.
The device according to claim 15, wherein the controller is used for:

judging whether the first amount of data is smaller than a first threshold;

When the first data amount is smaller than the first threshold, according to the state information of the second UPIU, determine prompt type information of the first UPIU, where the prompt type information includes the first type or the second type.
The device according to claim 16, wherein the controller is used for:

judging whether the state information of the second UPIU indicates that the second UPIU is ready;

When the state information of the second UPIU indicates that the second UPIU is ready, determining that the prompt type information is the first type;

When the status information of the second UPIU indicates that the second UPIU is not ready, determine that the prompt type information is the second type.
The device according to claim 16 or 17, wherein the controller is further configured to: when the first data amount is equal to the first threshold, determine that the prompt type information is the third type .
The device according to claim 18, wherein the controller is configured to: when the status information of the second UPIU indicates that the second UPIU is ready, determine that the prompt type information is the third type.
The device according to any one of claims 14 to 19, wherein the first UPIU includes: ready for transmission RTT UPIU or read-in data UPIU.
The device according to claim 20, wherein the prompt type information is located in the reserved field segment of the prompt information of the transmission ready RTT UPIU or the read-in data UPIU.
The device according to any one of claims 14 to 21, wherein the controller is further used for:

receiving the command UPIU through the transmission interface;

The first UPIU is generated in response to the command UPIU.
A device for data processing, characterized in that the device includes: a transmission interface, a controller, a high-speed memory, and a first memory;

The controller is configured to receive a first universal flash storage UFS protocol information unit UPIU through the transmission interface, the first UPIU includes prompt type information and description information of the first UPIU, and the prompt type information includes a first type , the second type or the third type; the first type is used to indicate that the second UPIU is ready, the second type is used to indicate that the second UPIU is not ready, and the third type is used to indicate to delete the At least one of the physical area descriptor of the UPIU indicated by the first type or the physical area descriptor of the UPIU indicated by the second type in the high-speed memory; the physical area descriptor is used to indicate that the UPIU corresponds to The location of the first memory; the description information of the first UPIU includes the identification information of the first UPIU and the data cache offset of the first UPIU; the data cache offset of the first UPIU is used To represent the position of the first UPIU among the plurality of UPIUs for responding to a command requesting to write data or to read data;

The controller is further configured to adjust the physical area descriptor in the high-speed memory according to the hint type information.
The device according to claim 23, wherein the controller is used for:

When the hint type information is the first type, prefetch the physical area descriptor corresponding to the hint type information of the first UPIU, and save it in the high-speed memory with the first priority;

When the hint type information is the second type, prefetch the physical area descriptor corresponding to the hint type information of the first UPIU, and save it in the high-speed memory with the second priority; the second a priority lower than said first priority;

When the prompt type information is the third type, delete the physical area descriptor of the UPIU indicated by the first type or the physical area descriptor of the UPIU indicated by the second type in the high-speed memory at least one.
The device according to claim 23 or 24, wherein the first UPIU includes: ready for transmission RTT UPIU or read-in data UPIU.
The device according to claim 25, wherein the prompt type information is located in the reserved field segment of the prompt information of the transmission ready RTT UPIU or the read-in data UPIU.
An electronic device, characterized by comprising: a host and a storage device coupled to the host;

The host is configured to execute the method according to any one of claims 10-13;

The storage device is used to execute the method according to any one of claims 1-9.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method described in any one of claims 1-9 or 10-13 is implemented. method.
A computer program product, characterized in that the computer program product includes a computer program, and when the computer program is executed by a processor, the method described in any one of claims 1-9 or 10-13 is implemented.