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    Sticky and transient markers for a packet parser
    11.
    发明专利
    Sticky and transient markers for a packet parser 未知

    公开(公告)号：GB2532055A

    公开(公告)日：2016-05-11

    申请号：GB201419824

    申请日：2014-11-07

    Applicant: IBM

    Inventor： FABRICE JEAN VERPLANKEN ,  FRANCOIS ABEL ,  CLAUDE BASSO ,  PHILIPPE DAMON

    IPC: G06F9/44 ,  H04L45/74

    Abstract: A packet parser 9 has a set of marker elements (21, Figure 3) each comprising a one bit latch and connected to store flag values from the results of the application of parser rules. Some marker elements are connected to provide the stored marker values as input to the parser rule logic to be taken into account in the processing of subsequent parser rules and some are connected to control external hardware. Some markers are reset at the end of each packet. A special toggle marker element toggles its value when its address is selected and other marker elements are connected to store, when its own address is selected, the value of the toggle element. Other markers toggle their own value when selected. The packet parser comprises a rule processor 10 which applies parsing rules to data from a data packet and supplies a result address value. The rule processor extracts the marker element address value from a field of a processor rule. The new value stored in the selected marker may be based on a value of one of the marker elements of the plurality of marker elements, such as the previous value of the selected marker, based on being different to the default value of the selected marker element or based on the value of a special marker element. The special marker element may invert its value when enabled and supplies its stored value, or a value based thereon, as the input of the selected marker element.

    NC-SI port controller
    14.
    发明专利
    NC-SI port controller 未知

    公开(公告)号：GB2532054A

    公开(公告)日：2016-05-11

    申请号：GB201419819

    申请日：2014-11-07

    Applicant: IBM

    Inventor： FABRICE JEAN VERPLANKEN ,  JEAN-PAUL ALDEBERT ,  JEAN-LUC FRENOY ,  CLAUDE BASSO

    IPC: G06F13/38 ,  H04L29/06 ,  H04L29/08

    Abstract: A Network Controller-Sideband Interface (NC-SI) Port Controller (NPC) 23 of a Network Interface Controller (NIC) provides a sideband connection between the network 2 and a Baseboard Management Controller (BMC) 17. Pass-through traffic to and from the BMC are injected and extracted by the XBB 16 and RBB 6 units of the Host Ethernet Adapter 3 part of the NIC. Asynchronous event notification (AEN) pseudopackets giving status information about the NIC are compiled 28 and injected into the data route of the NPC that carries packets from the BMC. Both of those kinds of packet pass by a packet parser 30 with the AEN pseudo-packets being dropped but their content being assembled by the NPC into an AEN packet which is then injected into the data route of the NPC that carries packets bound for the BMC. The packet parser analyses data transmitted from the sideband endpoint (BMC) towards the network and identifies NC-SI requests from the BMC and provides response packets in the same way. The NIC also comprises a Media Access Controller 4. The HEA comprises a host buffer to store a packet from the host; a sideband buffer to store a packet from the NPC and an arbiter connected to allow, at different times, a packet in the host buffer and a packet in the sideband buffer, to advance from there along a transmit route to the MAC. In-Band packets may have higher priority than sideband packets.

    NC-SI port controller
    15.
    发明专利
    NC-SI port controller 未知

    公开(公告)号：GB2532053A

    公开(公告)日：2016-05-11

    申请号：GB201419818

    申请日：2014-11-07

    Applicant: IBM

    Inventor： FABRICE JEAN VERPLANKEN ,  JEAN-PAUL ALDEBERT ,  JEAN-LUC FRENOY ,  CLAUDE BASSO

    IPC: G06F13/38 ,  H04L47/32 ,  H04L47/2466 ,  H04L47/80

    Abstract: A Network Controller-Sideband Interface (NC-SI) Port Controller (NPC) 23 of a Network Interface Controller (NIC) provides a sideband connection between the network 2 and a Baseboard Management Controller (BMC) 17. Pass-through traffic to and from the BMC are injected and extracted by the XBB 16 and RBB 6 units of the Host Ethernet Adapter 3 part of the NIC. Asynchronous event notification (AEN) pseudopackets giving status information about the NIC are compiled 28 and injected into the data route of the NPC that carries packets from the BMC. Both of those kinds of packet pass by a packet parser 30 with the AEN pseudo-packets being dropped but their content being assembled by the NPC into an AEN packet which is then injected into the data route of the NPC that carries packets bound for the BMC. The packet parser analyses data transmitted from the sideband endpoint (BMC) towards the network and identifies NC-SI requests from the BMC and provides response packets in the same way. A buffer may be employed in the transmit route for packets from the BMC headed towards the network. The buffer may employ a sliding window circuit connect ro provide a section of the data in the buffer to the packet parser. The NPC may also comprise an arbiter 21, 22, to arbitrate traffic to or from the BMC.

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