From: Konstantin Taranov <kotaranov@linux.microsoft.com>
To: kotaranov@microsoft.com, sharmaajay@microsoft.com,
longli@microsoft.com, jgg@ziepe.ca, leon@kernel.org
Cc: linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH rdma-next v3 1/2] RDMA/mana_ib: Fix bug in creation of dma regions
Date: Mon, 4 Mar 2024 05:52:40 -0800 [thread overview]
Message-ID: <1709560361-26393-2-git-send-email-kotaranov@linux.microsoft.com> (raw)
In-Reply-To: <1709560361-26393-1-git-send-email-kotaranov@linux.microsoft.com>
From: Konstantin Taranov <kotaranov@microsoft.com>
Use ib_umem_dma_offset() helper to calculate correct dma offset.
Fixes: 0266a177631d ("RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter")
Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
---
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 29dd2438d..dd570832d 100644
--- a/drivers/infiniband/hw/mana/main.c
+++ b/drivers/infiniband/hw/mana/main.c
@@ -348,7 +348,7 @@ int mana_ib_gd_create_dma_region(struct mana_ib_dev *dev, struct ib_umem *umem,
sizeof(struct gdma_create_dma_region_resp));
create_req->length = umem->length;
- create_req->offset_in_page = umem->address & (page_sz - 1);
+ 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->page_count = num_pages_total;
--
2.43.0
next prev parent reply other threads:[~2024-03-04 13:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-04 13:52 [PATCH rdma-next v3 0/2] RDMA/mana_ib: Improve dma region creation Konstantin Taranov
2024-03-04 13:52 ` Konstantin Taranov [this message]
2024-03-04 13:52 ` [PATCH rdma-next v3 2/2] RDMA/mana_ib: Use virtual address in dma regions for MRs Konstantin Taranov
2024-03-05 21:32 ` Zhu Yanjun
2024-03-07 9:32 ` [PATCH rdma-next v3 0/2] RDMA/mana_ib: Improve dma region creation Leon Romanovsky
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