RDMA/rxe: Add a type flag to rxe_queue structs

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To create optimal code only want to use smp_load_acquire() and
smp_store_release() for user indices in rxe_queue APIs since kernel
indices are protected by locks which also act as memory barriers. By
adding a type to the queues we can determine which indices need to be
protected.

Link: https://lore.kernel.org/r/20210527194748.662636-2-rpearsonhpe@gmail.com
Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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Bob Pearson 2021-05-27 14:47:46 -05:00 • committed by Jason Gunthorpe

parent 50971e3915

commit 59daff49f2

5 changed files with 28 additions and 13 deletions

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4

drivers/infiniband/sw/rxe/rxe_cq.c

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12

drivers/infiniband/sw/rxe/rxe_qp.c

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8

drivers/infiniband/sw/rxe/rxe_queue.c

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13

drivers/infiniband/sw/rxe/rxe_queue.h

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4

drivers/infiniband/sw/rxe/rxe_srq.c

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