Scoreboard for tracking completion of tasks
A hardware functional module in a System On Chip (SOC) performs a given task, where the given task is one of a plurality of tasks that are associated with a work item and the work item is managed by firmware in the SOC. A first notification that the given task has completed is sent from the hardware functional module to a scoreboard module, where the scoreboard module is implemented in hardware on the SOC. The scoreboard module: in response to receiving the first notification, increments a counter; determines whether the counter exceeds a threshold; and in the event it is determined that the counter exceeds the threshold, sends, from the scoreboard module to the firmware, a second notification indicating that the plurality of tasks have completed.
1. A System On Chip (SOC), comprising:
a hardware functional module that is configured to:
perform a given task, wherein the given task is one of a plurality of tasks that are associated with a work item and the work item is managed by firmware in the SOC; and
send, from the hardware functional module to a scoreboard module, a first notification that the given task has completed, wherein the scoreboard module is implemented in hardware on the SOC;
the scoreboard module, wherein the scoreboard module is configured to:
in response to receiving the first notification, increment a counter;
determine whether the counter exceeds a threshold; and
in the event it is determined that the counter exceeds the threshold, send, from the scoreboard module to the firmware, a second notification indicating that the plurality of tasks have completed; and
the firmware, wherein:
the counter has a first size;
the counter is one of a plurality of counters in the SOC; and
the plurality of counters includes a second counter having a second size.
2. The SOC recited in claim 1 , wherein the hardware functional module is implemented on an application-specific integrated circuit (ASIC).
3. A System On Chip (SOC), comprising:
a hardware functional module that is configured to:
perform a given task, wherein the given task is one of a plurality of tasks that are associated with a work item and the work item is managed by firmware in the SOC; and
send, from the hardware functional module to a scoreboard module, a first notification that the given task has completed, wherein the scoreboard module is implemented in hardware on the SOC;
the scoreboard module, wherein the scoreboard module is configured to:
in response to receiving the first notification, increment a counter;
determine whether the counter exceeds a threshold; and
in the event it is determined that the counter exceeds the threshold, send, from the scoreboard module to the firmware, a second notification indicating that the plurality of tasks have completed; and
the firmware, wherein:
the hardware functional module is configured to perform the given task in response to receiving a command message that includes a scoreboard identifier (SBID) that is associated with the counter; and
the scoreboard module is further configured to select the counter from a plurality of counters based at least in part on the SBID.
4. A System On Chip (SOC), comprising:
a hardware functional module that is configured to:
perform a given task, wherein the given task is one of a plurality of tasks that are associated with a work item and the work item is managed by firmware in the SOC; and
send, from the hardware functional module to a scoreboard module, a first notification that the given task has completed, wherein the scoreboard module is implemented in hardware on the SOC;
the scoreboard module, wherein the scoreboard module is configured to:
in response to receiving the first notification, increment a counter;
determine whether the counter exceeds a threshold; and
in the event it is determined that the counter exceeds the threshold, send, from the scoreboard module to the firmware, a second notification indicating that the plurality of tasks have completed; and
the firmware, wherein:
the hardware functional module is configured to perform the given task in response to receiving a command message that includes a scoreboard identifier (SBID) that is associated with a location in a data structure;
the hardware functional module is further configured to write state information associated with the given task to the location associated with the SBID; and
the firmware is further configured to:
access the state information at the location using the SBID; and
determine a next step based at least in part on the state information.
5. A System On Chip (SOC), comprising:
a hardware functional module that is configured to:
perform a given task, wherein the given task is one of a plurality of tasks that are associated with a work item and the work item is managed by firmware in the SOC; and
send, from the hardware functional module to a scoreboard module, a first notification that the given task has completed, wherein the scoreboard module is implemented in hardware on the SOC;
the scoreboard module, wherein the scoreboard module is configured to:
in response to receiving the first notification, increment a counter;
determine whether the counter exceeds a threshold; and
in the event it is determined that the counter exceeds the threshold, send, from the scoreboard module to the firmware, a second notification indicating that the plurality of tasks have completed; and
the firmware, wherein:
the firmware is further configured to increment by zero one or more of the following: the counter or the threshold; and
the scoreboard module is further configured to:
determine whether the counter exceeds the threshold in response to any change to the counter, including incrementing the counter by zero; and
determine whether the counter exceeds the threshold in response to any change to the threshold, including incrementing the threshold by zero.
6. A System On Chip (SOC), comprising:
a hardware functional module that is configured to:
perform a given task, wherein the given task is one of a plurality of tasks that are associated with a work item and the work item is managed by firmware in the SOC; and
send, from the hardware functional module to a scoreboard module, a first notification that the given task has completed, wherein the scoreboard module is implemented in hardware on the SOC;
the scoreboard module, wherein the scoreboard module is configured to:
in response to receiving the first notification, increment a counter;
determine whether the counter exceeds a threshold; and
in the event it is determined that the counter exceeds the threshold, send, from the scoreboard module to the firmware, a second notification indicating that the plurality of tasks have completed; and
the firmware, wherein:
the hardware functional module is further configured to perform the given task in response to receiving a command message that includes a scoreboard identifier (SBID) that is associated with target information in the scoreboard module; and
the scoreboard module is further configured to:
access the target information using the SBID, wherein the target information includes an interrupt associated with the firmware; and
send the second notification, including by sending the second notification to the firmware via the interrupt.
7. A System On Chip (SOC), comprising:
a hardware functional module that is configured to:
perform a given task, wherein the given task is one of a plurality of tasks that are associated with a work item and the work item is managed by firmware in the SOC; and
send, from the hardware functional module to a scoreboard module, a first notification that the given task has completed, wherein the scoreboard module is implemented in hardware on the SOC;
the scoreboard module, wherein the scoreboard module is configured to:
in response to receiving the first notification, increment a counter;
determine whether the counter exceeds a threshold; and
in the event it is determined that the counter exceeds the threshold, send, from the scoreboard module to the firmware, a second notification indicating that the plurality of tasks have completed; and
the firmware, wherein:
the hardware functional module is further configured to perform the given task in response to receiving a command message that includes a scoreboard identifier (SBID) that is associated with target information in the scoreboard module; and
the scoreboard module is further configured to:
access the target information using the SBID, wherein the target information includes a firmware communication queue; and
send the second notification, including by sending the second notification to the firmware via the firmware communication queue.
8. A System On Chip (SOC), comprising:
a hardware functional module that is configured to:
perform a given task, wherein the given task is one of a plurality of tasks that are associated with a work item and the work item is managed by firmware in the SOC; and
send, from the hardware functional module to a scoreboard module, a first notification that the given task has completed, wherein the scoreboard module is implemented in hardware on the SOC;
the scoreboard module, wherein the scoreboard module is configured to:
in response to receiving the first notification, increment a counter;
determine whether the counter exceeds a threshold; and
in the event it is determined that the counter exceeds the threshold, send, from the scoreboard module to the firmware, a second notification indicating that the plurality of tasks have completed; and
the firmware, wherein:
the hardware functional module is further configured to perform the given task in response to receiving a command message that includes a comparison enable that is set to a DISABLE value in the event a value for the threshold is unknown; and
the scoreboard module is further configured to:
in the event the comparison enable is set to an ENABLE value, determine whether the counter exceeds the threshold; and
in the event the comparison enable is set to the DISABLE value, bypass the determination of whether the counter exceeds the threshold.
9. A System On Chip (SOC), comprising:
a hardware functional module that is configured to:
perform a given task, wherein the given task is one of a plurality of tasks that are associated with a work item and the work item is managed by firmware in the SOC; and
send, from the hardware functional module to a scoreboard module, a first notification that the given task has completed, wherein the scoreboard module is implemented in hardware on the SOC;
the scoreboard module, wherein the scoreboard module is configured to:
in response to receiving the first notification, increment a counter;
determine whether the counter exceeds a threshold; and
in the event it is determined that the counter exceeds the threshold, send, from the scoreboard module to the firmware, a second notification indicating that the plurality of tasks have completed; and
the firmware, wherein:
the hardware functional module is further configured to:
perform the given task in response to receiving a command message that includes a first scoreboard identifier (SBID) and a second SBID; and
send the first notification, including by sending the first SBID and the second SBID to the scoreboard module; and
the scoreboard module is further configured to:
select the counter and a second counter from a plurality of counters based at least in part on the first SBID and the second SBID, respectively;
in response to receiving the first notification, increment the second counter;
determine whether the second counter exceeds a second threshold; and
in the event it is determined that the second counter exceeds the second threshold, send, from the scoreboard module to a target that is associated with the second SBID, a third notification indicating that a second plurality of tasks have completed.
10. A method, comprising:
using a hardware functional module in a System On Chip (SOC) to perform a given task, wherein the given task is one of a plurality of tasks that are associated with a work item and the work item is managed by firmware in the SOC;
sending, from the hardware functional module to a scoreboard module, a first notification that the given task has completed, wherein the scoreboard module is implemented in hardware on the SOC; and
using the scoreboard module to:
in response to receiving the first notification, increment a counter;
determine whether the counter exceeds a threshold; and
in the event it is determined that the counter exceeds the threshold, send, from the scoreboard module to the firmware, a second notification indicating that the plurality of tasks have completed, wherein:
the counter has a first size;
the counter is one of a plurality of counters in the SOC; and
the plurality of counters includes a second counter having a second size.
11. The method recited in claim 10 , wherein the hardware functional module is implemented on an application-specific integrated circuit (ASIC).
12. A method, comprising:
using a hardware functional module in a System On Chip (SOC) to perform a given task, wherein the given task is one of a plurality of tasks that are associated with a work item and the work item is managed by firmware in the SOC;
sending, from the hardware functional module to a scoreboard module, a first notification that the given task has completed, wherein the scoreboard module is implemented in hardware on the SOC; and
using the scoreboard module to:
in response to receiving the first notification, increment a counter;
determine whether the counter exceeds a threshold; and
in the event it is determined that the counter exceeds the threshold, send, from the scoreboard module to the firmware, a second notification indicating that the plurality of tasks have completed, wherein:
the hardware functional module performs the given task in response to receiving a command message that includes a scoreboard identifier (SBID) that is associated with the counter; and
the method further includes using the scoreboard module to select the counter from a plurality of counters based at least in part on the SBID.
13. A method, comprising:
using a hardware functional module in a System On Chip (SOC) to perform a given task, wherein the given task is one of a plurality of tasks that are associated with a work item and the work item is managed by firmware in the SOC;
sending, from the hardware functional module to a scoreboard module, a first notification that the given task has completed, wherein the scoreboard module is implemented in hardware on the SOC; and
using the scoreboard module to:
in response to receiving the first notification, increment a counter;
determine whether the counter exceeds a threshold; and
in the event it is determined that the counter exceeds the threshold, send, from the scoreboard module to the firmware, a second notification indicating that the plurality of tasks have completed, wherein:
the hardware functional module performs the given task in response to receiving a command message that includes a scoreboard identifier (SBID) that is associated with a location in a data structure;
the method further includes using the hardware functional module to write state information associated with the given task to the location associated with the SBID; and
the method further includes using the firmware to:
access the state information at the location using the SBID; and
determine a next step based at least in part on the state information.
14. A method, comprising:
using a hardware functional module in a System On Chip (SOC) to perform a given task, wherein the given task is one of a plurality of tasks that are associated with a work item and the work item is managed by firmware in the SOC;
sending, from the hardware functional module to a scoreboard module, a first notification that the given task has completed, wherein the scoreboard module is implemented in hardware on the SOC; and
using the scoreboard module to:
in response to receiving the first notification, increment a counter;
determine whether the counter exceeds a threshold; and
in the event it is determined that the counter exceeds the threshold, send, from the scoreboard module to the firmware, a second notification indicating that the plurality of tasks have completed, wherein the method further includes:
using the firmware to increment by zero one or more of the following: the counter or the threshold; and
using the scoreboard module to:
determine whether the counter exceeds the threshold in response to any change to the counter, including incrementing the counter by zero; and
determine whether the counter exceeds the threshold in response to any change to the threshold, including incrementing the threshold by zero.
15. A method, comprising:
using a hardware functional module in a System On Chip (SOC) to perform a given task, wherein the given task is one of a plurality of tasks that are associated with a work item and the work item is managed by firmware in the SOC;
sending, from the hardware functional module to a scoreboard module, a first notification that the given task has completed, wherein the scoreboard module is implemented in hardware on the SOC; and
using the scoreboard module to:
in response to receiving the first notification, increment a counter;
determine whether the counter exceeds a threshold; and
in the event it is determined that the counter exceeds the threshold, send, from the scoreboard module to the firmware, a second notification indicating that the plurality of tasks have completed, wherein:
the hardware functional module performs the given task in response to receiving a command message that includes a scoreboard identifier (SBID) that is associated with target information in the scoreboard module; and
the method further includes using the scoreboard module to:
access the target information using the SBID, wherein the target information includes an interrupt associated with the firmware; and
send the second notification, including by sending the second notification to the firmware via the interrupt.
16. A method, comprising:
using a hardware functional module in a System On Chip (SOC) to perform a given task, wherein the given task is one of a plurality of tasks that are associated with a work item and the work item is managed by firmware in the SOC;
sending, from the hardware functional module to a scoreboard module, a first notification that the given task has completed, wherein the scoreboard module is implemented in hardware on the SOC; and
using the scoreboard module to:
in response to receiving the first notification, increment a counter;
determine whether the counter exceeds a threshold; and
in the event it is determined that the counter exceeds the threshold, send, from the scoreboard module to the firmware, a second notification indicating that the plurality of tasks have completed, wherein:
the hardware functional module performs the given task in response to receiving a command message that includes a scoreboard identifier (SBID) that is associated with target information in the scoreboard module; and
the method further includes using the scoreboard module to:
access the target information using the SBID, wherein the target information includes a firmware communication queue; and
send the second notification, including by sending the second notification to the firmware via the firmware communication queue.
17. A method, comprising:
using a hardware functional module in a System On Chip (SOC) to perform a given task, wherein the given task is one of a plurality of tasks that are associated with a work item and the work item is managed by firmware in the SOC;
sending, from the hardware functional module to a scoreboard module, a first notification that the given task has completed, wherein the scoreboard module is implemented in hardware on the SOC; and
using the scoreboard module to:
in response to receiving the first notification, increment a counter;
determine whether the counter exceeds a threshold; and
in the event it is determined that the counter exceeds the threshold, send, from the scoreboard module to the firmware, a second notification indicating that the plurality of tasks have completed, wherein:
the hardware functional module performs the given task in response to receiving a command message that includes a comparison enable that is set to a DISABLE value in the event a value for the threshold is unknown; and
the method further includes using the scoreboard module to:
in the event the comparison enable is set to an ENABLE value, determine whether the counter exceeds the threshold; and
in the event the comparison enable is set to the DISABLE value, bypass the determination of whether the counter exceeds the threshold.
18. A method, comprising:
using a hardware functional module in a System On Chip (SOC) to perform a given task, wherein the given task is one of a plurality of tasks that are associated with a work item and the work item is managed by firmware in the SOC;
sending, from the hardware functional module to a scoreboard module, a first notification that the given task has completed, wherein the scoreboard module is implemented in hardware on the SOC; and
using the scoreboard module to:
in response to receiving the first notification, increment a counter;
determine whether the counter exceeds a threshold; and
in the event it is determined that the counter exceeds the threshold, send, from the scoreboard module to the firmware, a second notification indicating that the plurality of tasks have completed, wherein the method further includes:
using the hardware functional module to:
perform the given task in response to receiving a command message that includes a first scoreboard identifier (SBID) and a second SBID; and
send the first notification, including by sending the first SBID and the second SBID to the scoreboard module; and
using the scoreboard module to:
select the counter and a second counter from a plurality of counters based at least in part on the first SBID and the second SBID, respectively;
in response to receiving the first notification, increment the second counter;
determine whether the second counter exceeds a second threshold; and
in the event it is determined that the second counter exceeds the second threshold, send, from the scoreboard module to a target that is associated with the second SBID, a third notification indicating that a second plurality of tasks have completed.