Intelligent wide port phy usage
A controller of a storage device is described for handling communications with a host device. In some examples, the storage device includes a wide port comprising a plurality of phys. The wide port is configured to receive, via a first phy of the plurality of phys, a signal. The controller is configured to select, based on a respective power factor associated with each respective phy of the plurality of phys and a respective performance factor associated with each respective phy of the plurality of phys, a second phy of the plurality of phys to utilize for performing an operation associated with the received signal. In such examples, the wide port is further configured to perform, using the second phy, the operation associated with the received signal.
1. A method of performing an operation for a storage device, comprising:
receiving a signal via a first phy of a plurality of phys;
selecting, by a storage device controller, a second phy of the plurality of phys to utilize one of a wake up time factor associated with the received signal and a respective weight associated with the received signal; and
performing the operation using the second phy, associated with the received signal.
2. The method according to claim 1 , wherein the selecting is based on a respective power factor associated with each respective phy of the plurality of phys and a respective performance factor associated with each respective phy of the plurality of phys.
3. The method of claim 2 , wherein the respective power factor indicates of power consumption needed to perform the operation using the respective phy.
4. The method according to claim 3 , wherein the respective power factor indicates an inverse level of power consumption.
5. The method of claim 2 , wherein the respective performance factor indicates a relative amount of time needed to perform the operation using the respective phy.
6. A method of performing an operation for a storage device, comprising:
receiving a signal at a first phy of a plurality of phys;
selecting, by a storage device controller, a second phy of the plurality of phys to utilize for performing an operation associated with the received signal; and
performing, using the second phy, the operation associated with the received signal, wherein a respective power factor comprises a scaled percentage of a respective power value associated with each respective phy of the plurality of phys, and wherein a respective performance factor comprises a scaled percentage of a respective performance value associated with each respective phy of the plurality of phys.
7. The method according to claim 6 , wherein the selecting of the second phy is based on the respective power factor associated with each respective phy of the plurality of phys and the respective performance factor associated with each respective phy of the plurality of phys.
8. The method of claim 6 , further comprising:
for each phy of the plurality of phys:
determining, by the controller, a power mode and a value based on the power mode for the respective phy; and
multiplying, by the controller, the power value with the scaled percentage of the respective power value associated with the respective phy to determine the power factor associated with the respective phy; and
selecting, by the controller and based on the respective power factor associated with each of the respective phys, the second phy.
9. The method of claim 6 , wherein the scaled percentage of the power factor is equal to one hundred percent.
10. The method of claim 6 , wherein the second phy comprises the phy of the plurality of phys with a power factor that has a greatest value.
11. The method of claim 8 , wherein the power mode is one of an active mode, a slumber mode and a partial power mode.
12. The method of claim 11 , wherein the active mode indicates that the respective phy may receive signals from a host device and perform operations, wherein the slumber mode indicates that the respective phy may neither receive signals from the host device nor perform operations and that the respective phy requires a first wake-up time duration to be transitioned to the active mode, and wherein the partial power mode indicates that the respective phy may neither receive signals from the host device nor perform operations and that the respective phy requires a second wake-up time duration to be transitioned to the active mode, wherein the second wake-up time duration is less than the first wake-up time duration.
13. The method of claim 6 , further comprising:
for each phy of the plurality of phys:
determining, by the controller, an initiator response factor for the respective phy, wherein the initiator response factor indicates a level of an initiator turnaround time for the respective phy;
determining, by the controller, a phy availability time factor for the respective phy, wherein the phy availability time factor indicates a level of time for the respective phy to become available to process a new operation based on the expected processing times of pending operations in a queue to be processed by the respective phy;
determining, by the controller, a wake-up time factor for the respective phy, wherein the wake-up time factor indicates a level of time for the respective phy to switch to an active power mode;
determining, by the controller, based on the initiator response factor for the respective phy, the phy availability time factor for the respective phy, the wake-up time factor for the respective phy, and a respective weight for each of the initiator response factor, the phy availability time factor, and the wake-up time factor, the respective performance value for the respective phy; and
multiplying, by the controller, the respective performance value with the scaled percentage of the performance value to determine the performance factor; and
selecting, by the controller, based on the respective performance factors, the second phy.
14. The method of claim 6 , wherein the scaled percentage of the performance value is equal to one hundred percent.
15. The method of claim 13 , wherein the second phy comprises the phy of the plurality of phys with the largest performance factor.
16. The method of claim 13 , wherein a sum of the respective weights for each of the initiator response factor, the phy availability time factor, and the wake-up time factor is equal to one hundred percent.
17. The method of claim 6 , wherein a sum of the scaled percentage of the power factor and the scaled percentage of the performance value is equal to one hundred percent.
18. A storage device, comprising:
a wide port comprising at least two phys, wherein the wide port is configured to:
receive, via a first phy of the at least two phys, a signal; and
a controller configured to:
select, based on a respective power factor associated with each respective phy of the plurality of phys and a respective performance factor associated with each respective phy of the plurality of phys, a second phy of the plurality of phys to utilize one of a wake up time factor associated with the received signal and a respective weight associated with the received signal, wherein the wide port is further configured to perform, using the second phy, the operation associated with the received signal.
19. The storage device of claim 18 , wherein the respective power factor indicates an inverse level of power consumption needed to perform the operation using the respective phy, and wherein the respective performance factor indicates a relative amount of time needed to perform the operation using the respective phy.
20. The storage device of claim 18 , wherein the second phy is different than the first phy.
21. An apparatus, comprising:
means for receiving a signal via a first phy of a plurality of phys;
means for selecting, by a storage device controller, a second phy of the plurality of phys to utilize one of a wake up time factor associated with the received signal and a respective weight associated with the received signal; and
means for performing the operation using the second phy, associated with the received signal.
22. An apparatus to perform an operation for a storage device, comprising:
means for receiving a signal at a first phy of a plurality of phys;
means for selecting, by a storage device controller, a second phy of the plurality of phys to utilize for performing an operation associated with the received signal; and
means for performing, using the second phy, the operation associated with the received signal, wherein a respective power factor comprises a scaled percentage of a respective power value associated with each respective phy of the plurality of phys, and wherein a respective performance factor comprises a scaled percentage of a respective performance value associated with each respective phy of the plurality of phys.
23. The apparatus according to claim 22 , wherein the means for the selecting of the second phy is configured to make a selection based on the respective power factor associated with each respective phy of the plurality of phys.
24. A storage device, comprising:
a port comprising at least two phys, wherein the port is configured to:
receive, via a first phy of the at least two phys, at least a first signal; and
a controller configured to:
select, based on a respective power factor associated with each respective phy of the plurality of phys and a respective performance factor associated with each respective phy of the plurality of phys, a second phy of the plurality of phys to utilize one of a wake up time factor associated with the received signal and a respective weight associated with the received signal.
25. The storage device according to claim 24 , wherein the port is a wide port.