diff mbox series

[rdma-next,v2,1/2] RDMA/mana_ib: use the correct page table index based on hardware page size

Message ID 1725030993-16213-1-git-send-email-longli@linuxonhyperv.com (mailing list archive)
State Not Applicable
Headers show
Series [rdma-next,v2,1/2] RDMA/mana_ib: use the correct page table index based on hardware page size | expand

Checks

Context Check Description
netdev/tree_selection success Not a local patch

Commit Message

Long Li Aug. 30, 2024, 3:16 p.m. UTC 
From: Long Li <longli@microsoft.com>

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>
---
change log
v2: replaced net with rdma-next tag in patch title and simplified the title

 drivers/infiniband/hw/mana/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Leon Romanovsky Sept. 2, 2024, 7:37 a.m. UTC | #1 
On Fri, 30 Aug 2024 08:16:32 -0700, longli@linuxonhyperv.com wrote:
> MANA hardware uses 4k page size. When calculating the page table index,
> it should use the hardware page size, not the system page size.
> 
> 

Applied, thanks!

[1/2] RDMA/mana_ib: use the correct page table index based on hardware page size
      https://git.kernel.org/rdma/rdma/c/9e517a8e9d9a30
[2/2] RDMA/mana_ib: use the correct page size for mapping user-mode doorbell page
      https://git.kernel.org/rdma/rdma/c/4a3b99bc04e501

Best regards,
diff mbox series

Patch

diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana/main.c
index d13abc954d2a..f68f54aea820 100644
--- a/drivers/infiniband/hw/mana/main.c
+++ b/drivers/infiniband/hw/mana/main.c
@@ -383,7 +383,7 @@  static int mana_ib_gd_create_dma_region(struct mana_ib_dev *dev, struct ib_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",