From: Leon Romanovsky <leon@kernel.org>
To: Doug Ledford <dledford@redhat.com>, Jason Gunthorpe <jgg@mellanox.com>
Cc: Leon Romanovsky <leonro@mellanox.com>,
RDMA mailing list <linux-rdma@vger.kernel.org>,
Shahaf Shuler <shahafs@mellanox.com>,
Yishai Hadas <yishaih@mellanox.com>,
Saeed Mahameed <saeedm@mellanox.com>,
linux-netdev <netdev@vger.kernel.org>
Subject: [PATCH rdma-next 5/5] IB/mlx5: Add mmap support for VAR
Date: Thu, 12 Dec 2019 13:09:28 +0200 [thread overview]
Message-ID: <20191212110928.334995-6-leon@kernel.org> (raw)
In-Reply-To: <20191212110928.334995-1-leon@kernel.org>
From: Yishai Hadas <yishaih@mellanox.com>
Add mmap support for VAR, it uses the 'offset' command mode with
involvement of IB core APIs to find the previously allocated mmap entry.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
---
drivers/infiniband/hw/mlx5/main.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 873480b07686..52bc86ab9490 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -2253,7 +2253,10 @@ static int mlx5_ib_mmap_offset(struct mlx5_ib_dev *dev,
mentry = to_mmmap(entry);
pfn = (mentry->address >> PAGE_SHIFT);
- prot = pgprot_writecombine(vma->vm_page_prot);
+ if (mentry->mmap_flag == MLX5_IB_MMAP_TYPE_VAR)
+ prot = pgprot_noncached(vma->vm_page_prot);
+ else
+ prot = pgprot_writecombine(vma->vm_page_prot);
ret = rdma_user_mmap_io(ucontext, vma, pfn,
entry->npages * PAGE_SIZE,
prot,
--
2.20.1
next prev parent reply other threads:[~2019-12-12 11:09 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-12 11:09 [PATCH rdma-next 0/5] VIRTIO_NET Emulation Offload Leon Romanovsky
2019-12-12 11:09 ` [PATCH mlx5-next 1/5] net/mlx5: Add Virtio Emulation related device capabilities Leon Romanovsky
2019-12-12 11:09 ` [PATCH mlx5-next 2/5] net/mlx5: Expose vDPA emulation " Leon Romanovsky
2019-12-12 11:09 ` [PATCH rdma-next 3/5] IB/mlx5: Extend caps stage to handle VAR capabilities Leon Romanovsky
2019-12-12 11:09 ` [PATCH rdma-next 4/5] IB/mlx5: Introduce VAR object and its alloc/destroy methods Leon Romanovsky
2020-01-07 19:36 ` Jason Gunthorpe
2020-01-08 8:12 ` Yishai Hadas
2019-12-12 11:09 ` Leon Romanovsky [this message]
2020-01-07 19:37 ` [PATCH rdma-next 0/5] VIRTIO_NET Emulation Offload Jason Gunthorpe
2020-01-10 18:30 ` Leon Romanovsky
2020-01-12 23:54 ` Jason Gunthorpe
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20191212110928.334995-6-leon@kernel.org \
--to=leon@kernel.org \
--cc=dledford@redhat.com \
--cc=jgg@mellanox.com \
--cc=leonro@mellanox.com \
--cc=linux-rdma@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=saeedm@mellanox.com \
--cc=shahafs@mellanox.com \
--cc=yishaih@mellanox.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).