US 10,484,514 B2 · Method for dispatching network frames among processing resources

Abstract

The invention relates to a method of processing data frames arriving on a network interface, comprising the following steps implemented in the network interface: storing a set of target positions (tgtPOS), positions in a frame at which are expected at least one parameter characterizing a subframe (ETH_TYPE) and parameters (SRC_IP, DST_IP) characterizing a client-server session; storing an expected value (xpVAL) for the subframe parameter; receiving a current frame and comparing the value (xtVAL) received at the position of the subframe parameter to the expected value; if equal, calculating an index (IDX) from the values received at the positions of the session parameters; and routing the current frame to a processing resource associated with the index.

Claims10

Dependent claims

A method of processing data frames arriving on a network interface, the method comprising the following steps implemented in the network interface:

storing a set of subframe and session parameter positions for a frame, including positions of a subframe parameter and of a set of session parameters;
storing an expected value for the subframe parameter;
receiving a current frame in fixed size words;
when a current word of the current frame overlaps a position among the stored parameter positions, storing the current word in a respective register of an extracted parameter register bank;
configuring an index mask for cancelling all data of the extracted parameter register bank except data at the positions of the set of session parameters;
calculating an index from the index mask;
comparing data received at the position of the subframe parameter to the expected value;
and
if the comparison is equal, routing the current frame to a processing resource associated with the index.

6 more elements

A method of dispatching frames arriving on a network interface among processing resources, comprising the following steps implemented in the network interface:

splitting a current received frame in fixed size words;
storing words wholly or partially containing selected parameters in respective registers of a register bank, wherein the selected parameters are not aligned with word boundaries;
configuring a comparison mask for cancelling all data of the registers except data at positions of a first subset of the selected parameters;
configuring an index mask for cancelling all data of the registers except data at positions of a second subset of the selected parameters;
calculating an index from the index mask;
associating a processing resource with the calculated index;
comparing an output of the comparison mask to a set of expected values;
and
if the comparison is equal, routing the current received frame to the processing resource associated with the index.

6 more elements

Dependencies are inferred from the claim text.

Method for dispatching network frames among processing resources

Life of this patent

Method for dispatching network frames among processing resources

Life of this patent

Abstract

Claims10