RDMA/erdma: Add event queue implementation

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Event queue (EQ) is the main notification way from erdma hardware to its
driver. Each erdma device contains 2 kinds EQs: asynchronous EQ (AEQ) and
completion EQ (CEQ). Per device has 1 AEQ, which used for RDMA async event
report, and max to 32 CEQs (numbered for CEQ0 to CEQ31). CEQ0 is used for
cmdq completion event report, and the rest CEQs are used for RDMA
completion event report.

Link: https://lore.kernel.org/r/20220727014927.76564-6-chengyou@linux.alibaba.com
Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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Cheng Xu 2022-07-27 09:49:21 +08:00 • committed by Jason Gunthorpe

parent 2af541bf8e

commit f2a0a630b9

1 changed files with 329 additions and 0 deletions

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drivers/infiniband/hw/erdma/erdma_eq.c

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