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From: longli@linuxonhyperv.com
To: Jason Gunthorpe <jgg@ziepe.ca>, Leon Romanovsky <leon@kernel.org>,
	Ajay Sharma <sharmaajay@microsoft.com>,
	Konstantin Taranov <kotaranov@microsoft.com>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>
Cc: linux-rdma@vger.kernel.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org, Long Li <longli@microsoft.com>,
	stable@vger.kernel.org
Subject: [PATCH rdma-next v2 1/2] RDMA/mana_ib: use the correct page table index based on hardware page size
Date: Fri, 30 Aug 2024 08:16:32 -0700	[thread overview]
Message-ID: <1725030993-16213-1-git-send-email-longli@linuxonhyperv.com> (raw)

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(-)

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",
-- 
2.17.1


             reply	other threads:[~2024-08-30 15:16 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-08-30 15:16 longli [this message]
2024-08-30 15:16 ` [PATCH rdma-next v2 2/2] RDMA/mana_ib: use the correct page size for mapping user-mode doorbell page longli
2024-09-02  7:37 ` [PATCH rdma-next v2 1/2] RDMA/mana_ib: use the correct page table index based on hardware page size Leon Romanovsky

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