Network service chains using hardware logic devices in an information handling system
A method, an information handling system (IHS), an IHS and a network interface system for transmitting data in an IHS. The method includes detecting, via a network interface device controller of a first IHS, a first memory transaction request from a second IHS to a first system memory of the first IHS. A plurality of first data associated with the first memory transaction request is received. A first peer to peer message is transmitted to a hardware logic device (HLD). The first peer to peer message includes a first action for the HLD. The HLD is triggered to process the first data according to the first action such that the HLD generates a plurality of second data.
1. A method of transmitting data in a networked information handling system (IHS), the method comprising:
detecting, via a controller within a network interface device (NID) of a first IHS, a first memory transaction request sent from a second IHS to a first system memory of the first IHS, the second IHS communicatively coupled to the NID of the first IHS;
receiving, at the controller, first data associated with the first memory transaction request;
comparing packet fields from received communication packets with packet fields contained in a flow table stored in a memory of the NID to determine a match of the received packet fields to an entry in the flow table, wherein: the flow table comprises:
information to decide a next hop, destination, or action for a packet;
a set of packet fields that can be matched with packet fields of the received packets; and
associated next hop, rules, or actions for matched packets; and
the NID routes packets based on contents of the flow table;
determining a first action to perform with the first data, based on finding a matching entry in the flow table, wherein the flow table specifies a desired service chain of actions between components of a networked computing system;
transmitting, by the controller via a root complex device, a first peer to peer message from the controller to a hardware logic device (HLD), the first peer to peer message including the first action for the HLD, the root complex device being a conduit for communication among components of the first IHS and enabling peer to peer messages between the components; and
triggering, via the first peer to peer message, the HLD to process the first data according to the first action such that the HLD generates a plurality of second data.
2. The method of claim 1 , wherein the first memory transaction request is a RDMA write request, and the method further comprises:
storing the first data to the first system memory;
determining if an end of write transaction packet has been received;
in response to the end of write transaction packet being received, generating the peer to peer message; and
receiving an acknowledgement from the HLD that processing of the first data has completed.
3. The method of claim 1 , wherein the first memory transaction request is a RDMA read request, and the method further comprises:
storing the first data to the first system memory;
receiving an acknowledgement from the HLD that processing of the first data has completed; and
transmitting the second data to a remote device.
4. The method of claim 1 , wherein the flow table comprises a plurality of different types of actions comprising at least one of a RDMA read request, a RDMA write request, and at least one peer to peer message.
5. The method of claim 1 , further comprising generating the flow table prior to the detecting of the first memory transaction request by:
receiving instructions associated with the flow table from a software defined networking controller, the instructions comprising flow table rules and peer to peer messaging rules;
generating the flow table based on the received instructions; and
storing the flow table to a memory of the first network interface device.
6. An information handling system (IHS) comprising: a processor communicatively coupled to a first system memory;
a hardware logic device (HLD) communicatively coupled to the first system memory; a first network interface device (NID) communicatively coupled to the processor, the first system memory and the HLD, the first network interface device including a first controller having firmware executing thereon that causes the first controller to:
detect a first memory transaction request received from a second IHS for the first system memory, the second IHS communicatively coupled to the NID of the first IHS:
receive first data associated with the first memory transaction request; and
compare packet fields from received communication packets with packet fields contained in a flow table stored in a memory of the NID to determine a match of the received packet fields to an entry in the flow table, wherein: the flow table comprises:
information to decide a next hop, destination, or action for a packet;
a set of packet fields that can be matched with packet fields of the received packets; and
associated next hop, rules, or actions for matched packets; and
the NID routes packets based on contents of the flow table;
determine a first action to perform with the first data, based on finding a matching entry in the flow table wherein the flow table specifies a desired service chain of actions between components of a networked computing system;
transmit, via a root complex device, a first peer to peer message to the HLD, the first peer to peer message including the first action for the HLD, the root complex device being a conduit for communication among components of the first IHS and enabling peer to peer messages between the components; and
trigger, via the first peer to peer message, the HLD to process the first data according to the first action such that the HLD generates a plurality of second data.
7. The information handling system of claim 6 , wherein the first memory transaction request is a RDMA write request, the firmware further configuring the controller to:
store the first data to the first system memory;
determine if an end of write transaction packet has been received;
in response to the end of write transaction packet being received, generate the peer to peer message; and
receive an acknowledgement from the HLD that processing of the first data has completed.
8. The information handling system of claim 6 , wherein the first memory transaction request is a RDMA read request, the firmware further configuring the controller to:
store the first data to the first system memory;
receive an acknowledgement from the HLD that processing of the first data has completed; and
transmit the second data to a remote device.
9. The information handling system of claim 6 , wherein the flow table comprises a plurality of different types of actions comprising at least one of a RDM A read request, a RDMA write request{circumflex over ( )} and at least one peer to peer message.
10. The information handling system of claim 6 , wherein the firmware further configures the controller to generate the flow table prior to the detecting of the first memory transaction request, wherein the controller:
receives instructions associated with the flow table from a software defined networking controller, the instructions comprising flow table rules and peer to peer messaging rules;
generates the flow table based on the received instructions; and
stores the flow table to a memory of the first network interface device.
11. The information handling system of claim 6 , wherein the HLD is a separate physical component communicatively coupled via a peripheral component interconnect express (PCIe) bus to the NID and to a processor and the first system memory of the first UTS via the root complex device.
12. A network interface system comprising:
a first IHS comprising a first network interface device (NID) communicatively coupled to a first system memory and a hardware logic device (HLD) communicatively coupled to the first system memory and the first network interface device;
a second IHS communicatively coupled to the first NID of the first IHS;
the first network interface device including a first controller having firmware executing thereon that facilitates data transmission, wherein the firmware configures the first controller to:
detect a first memory transaction request received from the second IHS for the first system memory;
receive first data associated with the first memory transaction request;
compare packet fields from received communication packets with packet fields contained in a flow table stored in a memory of the NIP to determine a match of the received packet fields to an entry in the flow table, wherein: the flow table comprises:
information to decide a next hop, destination, or action for a packet;
a set of packet fields that can be matched with packet fields of the received packets; and
associated next hop, rules, or actions for matched packets; and
the NID routes packets based on contents of the flow table;
determine a first action to perform with the first data, based on finding a matching entry in the flow table, wherein the flow table specifies a desired service chain of actions between components of a networked computing system;
transmit, via a root complex device, a first peer to peer message to the HLD, the first peer to peer message including the first action for the HLD, the root complex device being a conduit for communication among components of the first IHS and enabling peer to peer messages between the components; and
trigger, via the first peer to peer message, the HLD to process the first data according to the first action such that the HLD generates a plurality of second data.
13. The network interface system of claim 12 , wherein the first memory transaction request is a RDMA write request, the firmware further configuring the first controller to:
store the first data to the first system memory;
determine if an end of write transaction packet has been received;
in response to the end of write transaction packet being received, generate the peer to peer message; and
receive an acknowledgement from the HLD that processing of the first data has completed.
14. The network interface system of claim 12 , wherein the first memory transaction request is a RDMA read request, the firmware further configuring the first controller to:
store the first data to the first system memory;
receive an acknowledgement from the HLD that processing of the first data has completed; and
transmit the second data to a remote device.
15. The network interface system of claim 12 , wherein the flow table comprises a plurality of different types of actions comprising at least one of a RDMA read request, a RDMA write request{circumflex over ( )} and at least one peer to peer message.
16. The network interface system of claim 12 , wherein the firmware further configures the controller to generate the flow table prior to the detecting of the first memory transaction request, wherein the controller:
receives instructions associated with the flow table from a software defined networking controller, the instructions comprising flow table rules and peer to peer messaging rules;
generates the flow table based on the received instructions; and
stores the flow table to a memory of the first network interface device.