diff options
| author | Konstantin Taranov <kotaranov@microsoft.com> | 2024-03-04 16:52:41 +0300 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2024-03-07 12:32:33 +0300 |
| commit | 2d5c00815778ec4f4e0a84e405e3e157b7815db1 (patch) | |
| tree | 0533a597a3dcca858401573693f940c13b88e95e /drivers/infiniband/hw/mana/wq.c | |
| parent | e02497fb654689049ba8b46f098f17d5f19e0b3c (diff) | |
| download | linux-2d5c00815778ec4f4e0a84e405e3e157b7815db1.tar.xz | |
RDMA/mana_ib: Use virtual address in dma regions for MRs
Introduce mana_ib_create_dma_region() to create dma regions with iova
for MRs. It allows creating MRs with any page offset. Previously,
only page-aligned addresses worked.
For dma regions that must have a zero dma offset (e.g., for queues),
mana_ib_create_zero_offset_dma_region() is added.
To get the zero offset, ib_umem_find_best_pgoff() is used with zero
pgoff_bitmask.
Fixes: 0266a177631d ("RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter")
Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://lore.kernel.org/r/1709560361-26393-3-git-send-email-kotaranov@linux.microsoft.com
Reviewed-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Diffstat (limited to 'drivers/infiniband/hw/mana/wq.c')
| -rw-r--r-- | drivers/infiniband/hw/mana/wq.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mana/wq.c b/drivers/infiniband/hw/mana/wq.c index 372d361510e0..7c9c69962573 100644 --- a/drivers/infiniband/hw/mana/wq.c +++ b/drivers/infiniband/hw/mana/wq.c @@ -46,7 +46,7 @@ struct ib_wq *mana_ib_create_wq(struct ib_pd *pd, wq->wq_buf_size = ucmd.wq_buf_size; wq->rx_object = INVALID_MANA_HANDLE; - err = mana_ib_gd_create_dma_region(mdev, wq->umem, &wq->gdma_region); + err = mana_ib_create_zero_offset_dma_region(mdev, wq->umem, &wq->gdma_region); if (err) { ibdev_dbg(&mdev->ib_dev, "Failed to create dma region for create wq, %d\n", @@ -55,7 +55,7 @@ struct ib_wq *mana_ib_create_wq(struct ib_pd *pd, } ibdev_dbg(&mdev->ib_dev, - "mana_ib_gd_create_dma_region ret %d gdma_region 0x%llx\n", + "create_dma_region ret %d gdma_region 0x%llx\n", err, wq->gdma_region); /* WQ ID is returned at wq_create time, doesn't know the value yet */ |