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authorMax Gurtovoy <maxg@mellanox.com>2017-04-19 11:56:57 +0300
committerJens Axboe <axboe@kernel.dk>2020-05-09 16:18:35 -0600
commitb0012dd397155438c61b0c1b52ceec1f1366b3cc (patch)
tree4720ca5a6fee9682b80dc72cbcd415cc1637584f /sound
parent03f8cebc127fa285874074ec314b76b1333f6c43 (diff)
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nvmet-rdma: use SRQ per completion vector
In order to save resource allocation and utilize the completion locality in a better way (compared to SRQ per device that exist today), allocate Shared Receive Queues (SRQs) per completion vector. Associate each created QP/CQ with an appropriate SRQ according to the queue index. This association will reduce the lock contention in the fast path (compared to SRQ per device solution) and increase the locality in memory buffers. Add new module parameter for SRQ size to adjust it according to the expected load. User should make sure the size is >= 256 to avoid lack of resources. Also reduce the debug level of "last WQE reached" event that is raised when a QP is using SRQ during destruction process to relief the log. Signed-off-by: Max Gurtovoy <maxg@mellanox.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'sound')
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