Method for controlling rates of data streams, and smart network interface card, cloud device and storage medium

A smart network interface card, wherein the smart network interface card comprises at least one processor and at least one memory, the memory stores one or more computer-executable instructions, and the processor calls the one or more computer-executable instructions to:

• acquire a handshake connection message of a first device end, wherein the handshake connection message is used for a handshake connection between the first device end and a second device end, and the handshake connection message indicates a state of a congestion control mechanism of the first device end;
• if the state of the congestion control mechanism indicated by the handshake connection message is that the first device end prohibits establishing a congestion control mechanism connection, modify the state of the congestion control mechanism indicated by the handshake connection message to a state that the first device end permits establishing the congestion control mechanism connection to obtain a modified handshake connection message;
• send the modified handshake connection message to the second device end, so that the second device end sets the congestion control mechanism of the second device end in an enabled state when the state of the congestion control mechanism of the second device end permits establishing the congestion control mechanism connection;
• wherein, the congestion control mechanism of the second device end is used to reduce a sending rate of the data stream at the protocol stack level of the second device end when the data stream sent by the second device end is congested in a network.

A non-transitory storage medium, wherein one or more computer-executable instructions are stored in the storage medium, and when the one or more computer-executable instructions are executed by one or more processors, the one or more processors are configured to:

• acquire a handshake connection message of a first device end, wherein the handshake connection message is used for a handshake connection between the first device end and a second device end, and the handshake connection message indicates a state of a congestion control mechanism of the first device end;
• if the state of the congestion control mechanism indicated by the handshake connection message is that the first device end prohibits establishing a congestion control mechanism connection, modify the state of the congestion control mechanism indicated by the handshake connection message to a state that the first device end permits establishing the congestion control mechanism connection to obtain a modified handshake connection message;
• send the modified handshake connection message to the second device end, so that the second device end sets the congestion control mechanism of the second device end in an enabled state when the state of the congestion control mechanism of the second device end permits establishing the congestion control mechanism connection;
• wherein, the congestion control mechanism of the second device end is used to reduce a sending rate of the data stream at the protocol stack level of the second device end when the data stream sent by the second device end is congested in a network.