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RDMA/erdma: Allocate doorbell records from dma pool

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Currently, the 8 byte doorbell record is allocated along with the queue
buffer, which may result in waste of dma space when the queue buffer is
page aligned. To address this issue, we introduce a dma pool named
db_pool and allocate doorbell record from it.

Reviewed-by: Cheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: Boshi Yu <boshiyu@linux.alibaba.com>
Link: https://lore.kernel.org/r/20240311113821.22482-2-boshiyu@alibaba-inc.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Boshi Yu 2024-03-11 19:38:19 +08:00 • committed by Leon Romanovsky
commit f0697bf078
6 changed files with 167 additions and 101 deletions
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