Mohit I am not clear about the functionalities of the user level
Mohit HCA driver? Are there any specifications for it or it is
Mohit totally vendor based?
The userspace interface is based on the verbs described in chapter
11 of the IB spec, but there is no formal API spec.
Mohit It is also said it is used in speed path operations? Does
Mohit anyone has any ideas how does it do accomplishes it?
The kernel sets up a mapping of HCA registers into userspace, and then
userspace can talk directly to the IB hardware without going through
the kernel.
Mohit If I have SCSI storage devices in a SAN then can I use SRP
Mohit module to send some request and User mode HCA library for
Mohit some speed path operation? Basically I wanted to know that
Mohit for SCSI devices can User mode HCA library be used for
Mohit speed path operations . If yes the how they can be
Mohit used(Only theoretical details rest I wil try)
It would be theoretically possible to implement a userspace process
that connects to an SRP target and implement SRP in userspace.
However, I don't think this would be any better than using a kernel
SRP driver along with direct IO from userspace.
- R.
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