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Subject[PATCH 29/36] IB/mlx5: add a new paramter to __mlx_ib_populated_pas for ODP with HMM.
Date
From: Jérôme Glisse <jglisse@redhat.com>

When using HMM for ODP it will be usefull to pass the current mirror
page table iterator for __mlx_ib_populated_pas() function benefit. Add
void parameter for this.

Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
---
drivers/infiniband/hw/mlx5/mem.c | 8 +++++---
drivers/infiniband/hw/mlx5/mlx5_ib.h | 2 +-
drivers/infiniband/hw/mlx5/mr.c | 2 +-
3 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/infiniband/hw/mlx5/mem.c b/drivers/infiniband/hw/mlx5/mem.c
index 40df2cc..df56b7d 100644
--- a/drivers/infiniband/hw/mlx5/mem.c
+++ b/drivers/infiniband/hw/mlx5/mem.c
@@ -145,11 +145,13 @@ static u64 umem_dma_to_mtt(dma_addr_t umem_dma)
* num_pages - total number of pages to fill
* pas - bus addresses array to fill
* access_flags - access flags to set on all present pages.
- use enum mlx5_ib_mtt_access_flags for this.
+ * use enum mlx5_ib_mtt_access_flags for this.
+ * data - intended for odp with hmm, it should point to current mirror page
+ * table iterator.
*/
void __mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem,
int page_shift, size_t offset, size_t num_pages,
- __be64 *pas, int access_flags)
+ __be64 *pas, int access_flags, void *data)
{
unsigned long umem_page_shift = ilog2(umem->page_size);
int shift = page_shift - umem_page_shift;
@@ -201,7 +203,7 @@ void mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem,
{
return __mlx5_ib_populate_pas(dev, umem, page_shift, 0,
ib_umem_num_pages(umem), pas,
- access_flags);
+ access_flags, NULL);
}
int mlx5_ib_get_buf_offset(u64 addr, int page_shift, u32 *offset)
{
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index dff1cfc..ec532f0 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -602,7 +602,7 @@ void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr, int *count, int *shift,
int *ncont, int *order);
void __mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem,
int page_shift, size_t offset, size_t num_pages,
- __be64 *pas, int access_flags);
+ __be64 *pas, int access_flags, void *data);
void mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem,
int page_shift, __be64 *pas, int access_flags);
void mlx5_ib_copy_pas(u64 *old, u64 *new, int step, int num);
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 71c5935..51a7775 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -912,7 +912,7 @@ int mlx5_ib_update_mtt(struct mlx5_ib_mr *mr, u64 start_page_index, int npages,
if (!zap) {
__mlx5_ib_populate_pas(dev, umem, PAGE_SHIFT,
start_page_index, npages, pas,
- MLX5_IB_MTT_PRESENT);
+ MLX5_IB_MTT_PRESENT, NULL);
/* Clear padding after the pages brought from the
* umem. */
memset(pas + npages, 0, size - npages * sizeof(u64));
--
1.9.3


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