Data access method and apparatus

1. A data access method, comprising:

determining whether a processing device receives a first access request that is sent from a first access device in a set of access devices to a first storage device in a set of storage devices;

in response to receiving the first access request, acquiring by the processing device, identity information of the first access device, including by the processing device, the identity information in the first access request to generate an updated first access request, and sending by the processing device, the updated first access request to the first storage device;

in response to receiving data from the set of storage devices, determining by the processing device, identity information included in the data; and

in response to the determined identity information being associated with the identity information of the first access device, sending by the processing device, the data to the first access device;

wherein the method further comprises:

in response to receiving a second access request sent from a second access device in the set of access devices to a second storage device in the set of storage devices, determining by the processing device, whether the first access request has been sent; and

in response to determining that the first access request has been sent, including by the processing device, identity information of the second access device in the second access request to generate an updated second access request, and sending by the processing device, the updated second access request to the second storage device.

2. The method according to claim 1 , wherein the updated first access request is sent via a network-on-chip from the processing device to the first storage device.

3. The method according to claim 1 , wherein the first access request is received via a first port of the set of access devices, and the second access request is received via a second port of the set of access devices.

4. The method according to claim 1 , wherein the first storage device is exactly the second storage device.

5. The method according to claim 1 , wherein the updated second access request is sent via a network-on-chip to the second storage device.

6. A processing device, comprising:

a processor; and

a memory, configured to store instructions executable by the processor,

wherein when the instructions are executed by the processor, the processor is configured to:

determine whether the processing device receives a first access request that is sent from a first access device in a set of access devices to a first storage device in a set of storage devices;

acquire identity information of the first access device, include the identity information in the first access request to generate an updated first access request, and send the updated first access request to the first storage device, in response to receiving the first access request;

in response to receiving data from the set of storage devices, determine identity information included in the data; and

send the data to the first access device, in response to the determined identity information being associated with the identity information of the first access device;

wherein the processor is further configured to:

in response to receiving a second access request sent from a second access device in the set of access devices to a second storage device in the set of storage devices, determine whether the first access request has been sent; and

in response to determining that the first access request has been sent, include identity information of the second access device in the second access request to generate an updated second access request, and send the updated second access request to the second storage device.

7. The apparatus according to claim 6 , wherein the updated first access request is sent via a network-on-chip from the processing device to the first storage device.

8. The apparatus according to claim 6 , wherein the first access request is received via a first port of the set of access devices, and the second access request is received via a second port of the set of access devices.

9. The apparatus according to claim 6 , wherein the first storage device is exactly the second storage device.

10. The apparatus according to claim 6 , wherein the updated second access request is sent via a network-on-chip to the second storage device.

11. A non-transitory computer-readable storage medium, having computer programs stored thereon which, when executed by a processor, carry out a data access method, the method comprising:

in response to receiving the first access request, acquiring by the processing device, identity information of the first access device, including by the processing device, the identity information in the first access request to generate an updated first access request, and sending by the processing device, the updated first access request to the first storage device;

in response to receiving data from the set of storage devices, determining by the processing device, identity information included in the data; and

in response to the determined identity information being associated with the identity information of the first access device, sending by the processing device, the data to the first access device;

wherein the method further comprises:

in response to receiving a second access request sent from a second access device in the set of access devices to a second storage device in the set of storage devices, determining by the processing device, whether the first access request has been sent and

in response to determining that the first access request has been sent, including by the processing device, identity information of the second access device in the second access request to generate an updated second access request, and sending by the processing device, the updated second access request to the second storage device.