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[SRU,jammy:linux-azure,1/2] RDMA/mana_ib: use the correct page table index based on hardware page size

Message ID 20241009151527.671047-6-john.cabaj@canonical.com
State New
Headers show
Series [SRU,jammy:linux-azure,1/2] RDMA/mana_ib: use the correct page table index based on hardware page size | expand

Commit Message

John Cabaj Oct. 9, 2024, 3:15 p.m. UTC 
From: Long Li <longli@microsoft.com>

BugLink: https://bugs.launchpad.net/bugs/2084052

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: 0266a177631d ("RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter")
Signed-off-by: Long Li <longli@microsoft.com>
Link: https://patch.msgid.link/1725030993-16213-1-git-send-email-longli@linuxonhyperv.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
(backported from commit 9e517a8e9d9a303bf9bde35e5c5374795544c152)
[john-cabaj: context changes]
Signed-off-by: John Cabaj <john.cabaj@canonical.com>
---
 drivers/infiniband/hw/mana/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana/main.c
index 8b3bc302d6f3..f2dde3773aea 100644
--- a/drivers/infiniband/hw/mana/main.c
+++ b/drivers/infiniband/hw/mana/main.c
@@ -358,7 +358,7 @@  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 = umem->address & (page_sz - 1);
-	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",