[T10] Query: Can a device with 2 wide ports open 2 simultaneous connections with attached device that also has 2 wide ports

Lana Chan lana at cadence.com
Mon Jan 15 10:07:00 PST 2018


Hello,
I would like to obtain clarification on whether or not the following scenario is possible per SPL4 version 11

Can a device with 2 wide ports (same SAS address) open 2 simultaneous connections with an attached device that also has 2 wide ports (same SAS address).

According to Figure 25: Multiple connections on wide port; Connection F and G represent a wide SAS initiator port with 2 simultaneous connections to a wide SAS target port.
[cid:image006.png at 01D38DE8.9A125C60][cid:image001.png at 01D38DE7.BD6B3D40]
According to Figure 196 point C " the number of pending TX Open messages is less than or equal to the number of destination SAS addresses.

[cid:image003.png at 01D38DE8.9650E790]

With this in consideration (Figure 196 point C), the destination SAS address is only ONE (2 wide ports with same SAS address), this results in ONE Tx open message to TX open slot.  How would a simultaneous connection then be generated?

Kind Regards
Lana




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Lana May Chan   |   Senior Product Marketing Manager, Verification IP

P: 408-428-5749   M: 408-623-6108   www.cadence.com<http://www.cadence.com/>








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