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10 Commits

Author SHA1 Message Date
Konstantin Taranov
8f49682d94 RDMA/mana_ib: support of the zero based MRs 
Add IB_ZERO_BASED to the valid flags and use
the corresponding MR creation request for the zero
based memory.

Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://patch.msgid.link/1744621234-26114-3-git-send-email-kotaranov@linux.microsoft.com
Reviewed-by: Long Li <longli@microsoft.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
 2025-04-20 06:32:35 -04:00
Konstantin Taranov
7d40ccf018 RDMA/mana_ib: Access remote atomic for MRs 
Add IB_ACCESS_REMOTE_ATOMIC to the valid flags for MRs and use
the corresponding flag bit during MR creation in the HW.

Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://patch.msgid.link/1744621234-26114-2-git-send-email-kotaranov@linux.microsoft.com
Reviewed-by: Long Li <longli@microsoft.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
 2025-04-20 06:32:35 -04:00
Konstantin Taranov
ffd67b6b42 RDMA/mana_ib: Implement DMABUF MR support 
Add support of dmabuf MRs to mana_ib.

Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://patch.msgid.link/1739454861-4456-1-git-send-email-kotaranov@linux.microsoft.com
Reviewed-by: Long Li <longli@microsoft.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
 2025-02-18 08:26:27 -05:00
Konstantin Taranov
6e1b8bdcd0 RDMA/mana_ib: implement get_dma_mr 
Implement allocation of DMA-mapped memory regions.

Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://patch.msgid.link/1737394039-28772-3-git-send-email-kotaranov@linux.microsoft.com
Reviewed-by: Shiraz Saleem <shirazsaleem@microsoft.com>
Reviewed-by: Long Li <longli@microsoft.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
 2025-02-03 06:56:19 -05:00
Konstantin Taranov
82a5cc783d RDMA/mana_ib: Ignore optional access flags for MRs 
Ignore optional ib_access_flags when an MR is created.

Fixes: 0266a17763 ("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/1717575368-14879-1-git-send-email-kotaranov@linux.microsoft.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
 2024-06-21 10:19:36 -03:00
Konstantin Taranov
c8fc935f4b RDMA/mana_ib: remove useless return values from dbg prints 
Remove printing ret value on success as it was always 0.

Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://lore.kernel.org/r/1712672465-29960-1-git-send-email-kotaranov@linux.microsoft.com
Reviewed-by: Long Li <longli@microsoft.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
 2024-04-11 14:30:24 +03:00
Konstantin Taranov
2d5c008157 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: 0266a17763 ("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>
 2024-03-07 11:32:33 +02:00
Konstantin Taranov
71c8cbfcdc RDMA/mana_ib: Introduce mdev_to_gc helper function 
Use a helper function to access gdma_context from mana_ib_dev.
This patch removes code repetitions as well as removes the need
to explicitly use gdma_dev, which was error-prone.

Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://lore.kernel.org/r/1705965781-3235-2-git-send-email-kotaranov@linux.microsoft.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
 2024-01-25 12:03:00 +02:00
Leon Romanovsky
3574cfdca2 RDMA/mana: Remove redefinition of basic u64 type 
gdma_obj_handle_t is no more than redefinition of basic
u64 type. Remove such obfuscation.

Link: https://lore.kernel.org/r/3c1e821279e6a165d058655d2343722d6650e776.1668160486.git.leonro@nvidia.com
Acked-by: Long Li <longli@microsoft.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
 2022-11-14 10:16:46 +02:00
Long Li
0266a17763 RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter 
Add a RDMA VF driver for Microsoft Azure Network Adapter (MANA).

Co-developed-by: Ajay Sharma <sharmaajay@microsoft.com>
Signed-off-by: Ajay Sharma <sharmaajay@microsoft.com>
Reviewed-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: Long Li <longli@microsoft.com>
Link: https://lore.kernel.org/r/1667502990-2559-13-git-send-email-longli@linuxonhyperv.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
 2022-11-11 11:40:09 +02:00