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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>,
	Guy Levi <guyle@mellanox.com>, Moni Shoua <monis@mellanox.com>
Subject: [PATCH rdma-next 11/12] RDMA/mlx5: Use ib_umem_start instead of umem.address
Date: Mon, 19 Aug 2019 14:17:09 +0300	[thread overview]
Message-ID: <20190819111710.18440-12-leon@kernel.org> (raw)
In-Reply-To: <20190819111710.18440-1-leon@kernel.org>

From: Jason Gunthorpe <jgg@mellanox.com>

These are subtly different, the address is the original VA requested
during umem_get, while ib_umem_start() is the version that is rounded to
the proper page size, ie is the true start of the umem's dma map.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
---
 drivers/infiniband/hw/mlx5/odp.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c
index c755c76729bc..70e0a3555f11 100644
--- a/drivers/infiniband/hw/mlx5/odp.c
+++ b/drivers/infiniband/hw/mlx5/odp.c
@@ -184,7 +184,7 @@ void mlx5_odp_populate_klm(struct mlx5_klm *pklm, size_t offset,
 	for (i = 0; i < nentries; i++, pklm++) {
 		pklm->bcount = cpu_to_be32(MLX5_IMR_MTT_SIZE);
 		va = (offset + i) * MLX5_IMR_MTT_SIZE;
-		if (odp && odp->umem.address == va) {
+		if (odp && ib_umem_start(odp) == va) {
 			struct mlx5_ib_mr *mtt = odp->private;
 
 			pklm->key = cpu_to_be32(mtt->ibmr.lkey);
@@ -494,7 +494,7 @@ static struct ib_umem_odp *implicit_mr_get_data(struct mlx5_ib_mr *mr,
 	addr += MLX5_IMR_MTT_SIZE;
 	if (unlikely(addr < io_virt + bcnt)) {
 		odp = odp_next(odp);
-		if (odp && odp->umem.address != addr)
+		if (odp && ib_umem_start(odp) != addr)
 			odp = NULL;
 		goto next_mr;
 	}
@@ -664,7 +664,7 @@ static int pagefault_mr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr,
 
 		io_virt += size;
 		next = odp_next(odp);
-		if (unlikely(!next || next->umem.address != io_virt)) {
+		if (unlikely(!next || ib_umem_start(next) != io_virt)) {
 			mlx5_ib_dbg(dev, "next implicit leaf removed at 0x%llx. got %p\n",
 				    io_virt, next);
 			return -EAGAIN;
-- 
2.20.1


  parent reply	other threads:[~2019-08-19 11:17 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-19 11:16 [PATCH rdma-next 00/12] Improvements for ODP Leon Romanovsky
2019-08-19 11:16 ` [PATCH rdma-next 01/12] RDMA/odp: Use the common interval tree library instead of generic Leon Romanovsky
2019-08-19 11:17 ` [PATCH rdma-next 02/12] RDMA/odp: Iterate over the whole rbtree directly Leon Romanovsky
2019-08-21 17:15   ` Jason Gunthorpe
2019-08-21 17:27     ` Leon Romanovsky
2019-08-21 17:35       ` Jason Gunthorpe
2019-08-21 17:47         ` Leon Romanovsky
2019-08-19 11:17 ` [PATCH rdma-next 03/12] RDMA/odp: Make it clearer when a umem is an implicit ODP umem Leon Romanovsky
2019-08-19 11:17 ` [PATCH rdma-next 04/12] RMDA/odp: Consolidate umem_odp initialization Leon Romanovsky
2019-08-19 11:17 ` [PATCH rdma-next 05/12] RDMA/odp: Make the three ways to create a umem_odp clear Leon Romanovsky
2019-08-19 11:17 ` [PATCH rdma-next 06/12] RDMA/odp: Split creating a umem_odp from ib_umem_get Leon Romanovsky
2019-08-19 11:17 ` [PATCH rdma-next 07/12] RDMA/odp: Provide ib_umem_odp_release() to undo the allocs Leon Romanovsky
2019-08-19 11:17 ` [PATCH rdma-next 08/12] RDMA/odp: Check for overflow when computing the umem_odp end Leon Romanovsky
2019-08-26 16:42   ` Nathan Chancellor
2019-08-26 16:55     ` Jason Gunthorpe
2019-08-27 19:25       ` Nathan Chancellor
2019-08-19 11:17 ` [PATCH rdma-next 09/12] RDMA/odp: Use kvcalloc for the dma_list and page_list Leon Romanovsky
2019-08-19 11:17 ` [PATCH rdma-next 10/12] RDMA/core: Make invalidate_range a device operation Leon Romanovsky
2019-08-19 11:17 ` Leon Romanovsky [this message]
2019-08-19 11:17 ` [PATCH rdma-next 12/12] RDMA/mlx5: Use odp instead of mr->umem in pagefault_mr Leon Romanovsky
2019-08-21 16:42 ` [PATCH rdma-next 00/12] Improvements for ODP Jason Gunthorpe

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