diff options
| author | Konstantin Taranov <kotaranov@microsoft.com> | 2026-03-31 02:08:51 -0700 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2026-04-09 11:22:06 -0300 |
| commit | b21058880c454a06eeb0d146cd08e80b00caacb4 (patch) | |
| tree | f8875fcd7d81b544c8917d2c72d707faff2f4655 /include/net | |
| parent | 7244491dab347f648e661da96dc0febadd9daec3 (diff) | |
RDMA/mana_ib: Support memory windows
Implement .alloc_mw() and .dealloc_mw() for mana device.
This is just the basic infrastructure, MW is not practically usable until
additional kernel support for allowing user space to submit MW work
requests is completed.
Link: https://patch.msgid.link/r/20260331090851.2276205-1-kotaranov@linux.microsoft.com
Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Reviewed-by: Long Li <longli@microsoft.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/mana/gdma.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/net/mana/gdma.h b/include/net/mana/gdma.h index 766f4fb25e26..fc6468ac7a6f 100644 --- a/include/net/mana/gdma.h +++ b/include/net/mana/gdma.h @@ -778,6 +778,7 @@ enum gdma_mr_access_flags { GDMA_ACCESS_FLAG_REMOTE_READ = BIT_ULL(2), GDMA_ACCESS_FLAG_REMOTE_WRITE = BIT_ULL(3), GDMA_ACCESS_FLAG_REMOTE_ATOMIC = BIT_ULL(4), + GDMA_ACCESS_FLAG_BIND_MW = BIT_ULL(5), }; /* GDMA_CREATE_DMA_REGION */ @@ -870,6 +871,10 @@ enum gdma_mr_type { GDMA_MR_TYPE_ZBVA = 4, /* Device address MRs */ GDMA_MR_TYPE_DM = 5, + /* Memory Window type 1 */ + GDMA_MR_TYPE_MW1 = 6, + /* Memory Window type 2 */ + GDMA_MR_TYPE_MW2 = 7, }; struct gdma_create_mr_params { |