diff options
| author | Konstantin Taranov <kotaranov@microsoft.com> | 2025-04-14 02:00:33 -0700 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2025-04-20 06:32:35 -0400 |
| commit | 8f49682d94f3a12a6a3e636a07bbe57c80329d1d (patch) | |
| tree | 3c7f2b04f2007dc8bced58675fd5da6de67cad82 | |
| parent | 7d40ccf018694ae894b37d7e849cde116eb37627 (diff) | |
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>
| -rw-r--r-- | drivers/infiniband/hw/mana/mr.c | 24 | ||||
| -rw-r--r-- | include/net/mana/gdma.h | 11 |
2 files changed, 27 insertions, 8 deletions
diff --git a/drivers/infiniband/hw/mana/mr.c b/drivers/infiniband/hw/mana/mr.c index e4a9f537a6d0..6d974d0a8400 100644 --- a/drivers/infiniband/hw/mana/mr.c +++ b/drivers/infiniband/hw/mana/mr.c @@ -6,7 +6,7 @@ #include "mana_ib.h" #define VALID_MR_FLAGS (IB_ACCESS_LOCAL_WRITE | IB_ACCESS_REMOTE_WRITE | IB_ACCESS_REMOTE_READ |\ - IB_ACCESS_REMOTE_ATOMIC) + IB_ACCESS_REMOTE_ATOMIC | IB_ZERO_BASED) #define VALID_DMA_MR_FLAGS (IB_ACCESS_LOCAL_WRITE) @@ -51,7 +51,10 @@ static int mana_ib_gd_create_mr(struct mana_ib_dev *dev, struct mana_ib_mr *mr, req.gva.virtual_address = mr_params->gva.virtual_address; req.gva.access_flags = mr_params->gva.access_flags; break; - + case GDMA_MR_TYPE_ZBVA: + req.zbva.dma_region_handle = mr_params->zbva.dma_region_handle; + req.zbva.access_flags = mr_params->zbva.access_flags; + break; default: ibdev_dbg(&dev->ib_dev, "invalid param (GDMA_MR_TYPE) passed, type %d\n", @@ -147,11 +150,18 @@ struct ib_mr *mana_ib_reg_user_mr(struct ib_pd *ibpd, u64 start, u64 length, dma_region_handle); mr_params.pd_handle = pd->pd_handle; - mr_params.mr_type = GDMA_MR_TYPE_GVA; - mr_params.gva.dma_region_handle = dma_region_handle; - mr_params.gva.virtual_address = iova; - mr_params.gva.access_flags = - mana_ib_verbs_to_gdma_access_flags(access_flags); + if (access_flags & IB_ZERO_BASED) { + mr_params.mr_type = GDMA_MR_TYPE_ZBVA; + mr_params.zbva.dma_region_handle = dma_region_handle; + mr_params.zbva.access_flags = + mana_ib_verbs_to_gdma_access_flags(access_flags); + } else { + mr_params.mr_type = GDMA_MR_TYPE_GVA; + mr_params.gva.dma_region_handle = dma_region_handle; + mr_params.gva.virtual_address = iova; + mr_params.gva.access_flags = + mana_ib_verbs_to_gdma_access_flags(access_flags); + } err = mana_ib_gd_create_mr(dev, mr, &mr_params); if (err) diff --git a/include/net/mana/gdma.h b/include/net/mana/gdma.h index 228603bf03f2..239a70032550 100644 --- a/include/net/mana/gdma.h +++ b/include/net/mana/gdma.h @@ -815,6 +815,8 @@ enum gdma_mr_type { * address that is set up in the MST */ GDMA_MR_TYPE_GVA = 2, + /* Guest zero-based address MRs */ + GDMA_MR_TYPE_ZBVA = 4, }; struct gdma_create_mr_params { @@ -826,6 +828,10 @@ struct gdma_create_mr_params { u64 virtual_address; enum gdma_mr_access_flags access_flags; } gva; + struct { + u64 dma_region_handle; + enum gdma_mr_access_flags access_flags; + } zbva; }; }; @@ -841,7 +847,10 @@ struct gdma_create_mr_request { u64 virtual_address; enum gdma_mr_access_flags access_flags; } gva; - + struct { + u64 dma_region_handle; + enum gdma_mr_access_flags access_flags; + } zbva; }; u32 reserved_2; };/* HW DATA */ |