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9f81036c54
The IB CM uses an idr for local id allocations, with a running counter as start_id. This fails to generate distinct ids if 1. An id is constantly created and destroyed 2. A chunk of ids just beyond the current next_id value is occupied This in turn leads to an increased chance of connection request being mis-detected as a duplicate, sometimes for several retries, until next_id gets past the block of allocated ids. This has been observed in practice. As a fix, remember the last id allocated and start immediately above it. This also fixes a problem with the old code, where next_id might overflow and become negative. Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il> Acked-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com> |
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| .. | ||
| addr.c | ||
| agent.c | ||
| agent.h | ||
| cache.c | ||
| cm.c | ||
| cm_msgs.h | ||
| cma.c | ||
| core_priv.h | ||
| device.c | ||
| fmr_pool.c | ||
| iwcm.c | ||
| iwcm.h | ||
| mad.c | ||
| mad_priv.h | ||
| mad_rmpp.c | ||
| mad_rmpp.h | ||
| Makefile | ||
| multicast.c | ||
| packer.c | ||
| sa.h | ||
| sa_query.c | ||
| smi.c | ||
| smi.h | ||
| sysfs.c | ||
| ucm.c | ||
| ucma.c | ||
| ud_header.c | ||
| umem.c | ||
| user_mad.c | ||
| uverbs.h | ||
| uverbs_cmd.c | ||
| uverbs_main.c | ||
| uverbs_marshall.c | ||
| verbs.c | ||