IB/isert: allocate RW ctxs according to max IO size

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Current iSER target code allocates MR pool budget based on queue size.
Since there is no handshake between iSER initiator and target on max IO
size, we'll set the iSER target to support upto 16MiB IO operations and
allocate the correct number of RDMA ctxs according to the factor of MR's
per IO operation. This would guarantee sufficient size of the MR pool for
the required IO queue depth and IO size.

Link: https://lore.kernel.org/r/20200708091908.162263-1-maxg@mellanox.com
Reported-by: Krishnamraju Eraparaju <krishna2@chelsio.com>
Tested-by: Krishnamraju Eraparaju <krishna2@chelsio.com>
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Acked-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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Max Gurtovoy 2020-07-08 12:19:08 +03:00 • committed by Jason Gunthorpe

parent 0829d2da60

commit 317000b926

2 changed files with 6 additions and 3 deletions

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6

drivers/infiniband/ulp/isert/ib_isert.c

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3

drivers/infiniband/ulp/isert/ib_isert.h

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