amastbaum

UCP/WIREUP: specify a reason for wireup failure - part 2

2

## What During the wireup process, provide a reason when a resource's lane is unreachable (second part after https://github.com/openucx/ucx/pull/9995. Includes all the transports other than IB). ## Why ? Users...

UCT: check reachability using the routing table

1

## What Add a new reachability check mode for IP-based lanes. ## Why ? Currently, the reachability of IP-based lanes is only verified by checking if the local and remote...

UCP/TYPES: increase max number of lanes to 128 - use STATIC_BITMAP

2

## What? Increased the number of lanes from 64 to 128. ## Why? As UCX is expanding to support AI inference infrastructure with many GPUs, we need more communication lanes...

UCT/IB/MD: retry memory registration with reduced access flags on failure

5

## What? Enable memory registration for read-only addresses. ## Why? A customer reported an issue when attempting to send read-only memory using RDMA. Details can be found in the related...

## What? _Describe what this PR is doing._ ## Why? _Justification for the PR. If there is an existing issue/bug, please reference it. For bug fixes, the 'Why?' and 'What?'...

UCT/TCP: added reachability mode conf var to tcp_iface

4

## What? Added `UCX_TCP_REACHABILITY_MODE` config (default: `route`) to optionally allow all addresses without route checking when set to `all`. Solving bug: https://redmine.mellanox.com/issues/4659780 ## Summary by CodeRabbit * **New Features** *...