UCT/IB/RC: Add resource query and setup infrastructure.

[yosefe]

This one defines a framework for getting communication resources, and creating interface. An implementation over IB/RC is also included.
Hardware resources are identified by a string, e.g "mlx4_0:1", or "memory". The returned list is of all supported combinations of transports and resources.
The subnet address field is intended to provide "proximity"/"connectivity" information to upper level/user. It could be IB subnet prefix, or an IPv4/v6 subnet prefix, or in case of shared memory - unique host ID. The rule is, if you have an interface created on one resource, it could talk to any interface created on a remote resource, provided they have the same subnet address. This of course does not deal with cluster mis-configuration issues.

[shamisp]

Do we want to change 64 to:
#define UCT_MAX_NAME_LEN (64)

[yosefe]

ok

[shamisp]

Done with the first pass

[shamisp]

@fullerdj you may want to review it as well (if you have time)

[mellanox-github]

Merged build triggered.

[mellanox-github]

Merged build started.

[mellanox-github]

Merged build finished. Test FAILed.

[mellanox-github]

Test FAILed.
Refer to this link for build results (access rights to CI server needed):
http://bgate.mellanox.com:8000/jenkins-secure/job/ucx-PR/12/

Build Log
last 50 lines

GitHub pull request #14 of commit 2e60f9988ee06292df7d897f9138e1a19de0018b automatically merged.
[EnvInject] - Loading node environment variables.
Building in workspace /var/lib/jenkins/jobs/ucx-PR/workspace@2

Deleting project workspace... done

Wiping out workspace first.
Cloning the remote Git repository
Cloning repository https://github.com/uccs/ucx
 > /usr/bin/git init /var/lib/jenkins/jobs/ucx-PR/workspace@2 # timeout=10
Fetching upstream changes from https://github.com/uccs/ucx
 > /usr/bin/git --version # timeout=10
using .gitcredentials to set credentials
 > /usr/bin/git config --local credential.helper store --file=/tmp/git5222726624637438966.credentials # timeout=10
 > /usr/bin/git fetch --tags --progress https://github.com/uccs/ucx +refs/heads/*:refs/remotes/origin/* # timeout=60
 > /usr/bin/git config --local --remove-section credential # timeout=10
 > /usr/bin/git config remote.origin.url https://github.com/uccs/ucx # timeout=10
 > /usr/bin/git config remote.origin.fetch +refs/heads/*:refs/remotes/origin/* # timeout=10
 > /usr/bin/git config remote.origin.url https://github.com/uccs/ucx # timeout=10
Pruning obsolete local branches
Fetching upstream changes from https://github.com/uccs/ucx
using .gitcredentials to set credentials
 > /usr/bin/git config --local credential.helper store --file=/tmp/git3811109769781194601.credentials # timeout=10
 > /usr/bin/git fetch --tags --progress https://github.com/uccs/ucx +refs/pull/*:refs/remotes/origin/pr/* --prune # timeout=60
 > /usr/bin/git config --local --remove-section credential # timeout=10
 > /usr/bin/git rev-parse origin/pr/14/merge^{commit} # timeout=10
Checking out Revision b27280ee952a9fc7ebd56a35767bca1cfb3f7aaa (detached)
 > /usr/bin/git config core.sparsecheckout # timeout=10
 > /usr/bin/git checkout -f b27280ee952a9fc7ebd56a35767bca1cfb3f7aaa # timeout=20
Using 'Changelog to branch' strategy.
Triggering ucx-PR » master
ucx-PR » master completed with result FAILURE

Test FAILed.

[shamisp]

The above error seems to be installation problem.

[shamisp]

👍