Commit 57eb4d8d authored by Long Li's avatar Long Li Committed by Wen Zhiwei
Browse files

RDMA/mana_ib: use the correct page table index based on hardware page size 

stable inclusion
from stable-v6.6.55
commit e6be95592c9f8c14915a9d0785e43bde71f739f5
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/IB0MX4

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=e6be95592c9f8c14915a9d0785e43bde71f739f5



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[ Upstream commit 9e517a8e9d9a303bf9bde35e5c5374795544c152 ]

MANA hardware uses 4k page size. When calculating the page table index,
it should use the hardware page size, not the system page size.

Cc: stable@vger.kernel.org
Fixes: 0266a177 ("RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter")
Signed-off-by: default avatarLong Li <longli@microsoft.com>
Link: https://patch.msgid.link/1725030993-16213-1-git-send-email-longli@linuxonhyperv.com


Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
Signed-off-by: default avatarWen Zhiwei <wenzhiwei@kylinos.cn>
parent 3b959424

drivers/infiniband/hw/mana/main.c

+1 −1
Original line number Diff line number Diff line
@@ -359,7 +359,7 @@ int mana_ib_gd_create_dma_region(struct mana_ib_dev *dev, struct ib_umem *umem, 


	create_req->length = umem->length;

	create_req->offset_in_page = ib_umem_dma_offset(umem, page_sz);

	create_req->gdma_page_type = order_base_2(page_sz) - PAGE_SHIFT;

	create_req->gdma_page_type = order_base_2(page_sz) - MANA_PAGE_SHIFT;

	create_req->page_count = num_pages_total;



	ibdev_dbg(&dev->ib_dev, "size_dma_region %lu num_pages_total %lu\n",