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| author |   Michael Guralnik <michaelgur@mellanox.com> | 2020-01-08 20:05:39 +0200 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2020-01-16 15:55:46 -0400 |
| commit | 811646998e3e64af19524c8e99b790a4043c5f9b (patch) | |
| tree | f0a5fe851a5f7120514da74201dd6e343d5d734b /drivers | |
| parent | RDMA/uverbs: Add new relaxed ordering memory region access flag (diff) | |
| download | linux-dev-811646998e3e64af19524c8e99b790a4043c5f9b.tar.xz linux-dev-811646998e3e64af19524c8e99b790a4043c5f9b.zip | |
RDMA/core: Add the core support field to METHOD_GET_CONTEXT
Add the core support field to METHOD_GET_CONTEXT, this field should
represent capabilities that are not device-specific.
Return support for optional access flags for memory regions. User-space
will use this capability to mask the optional access flags for
unsupporting kernels.
Link: https://lore.kernel.org/r/1578506740-22188-10-git-send-email-yishaih@mellanox.com
Signed-off-by: Michael Guralnik <michaelgur@mellanox.com>
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/core/uverbs_std_types_device.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/infiniband/core/uverbs_std_types_device.c b/drivers/infiniband/core/uverbs_std_types_device.c index 2c5943548760..ae4a59d6f9b1 100644 --- a/drivers/infiniband/core/uverbs_std_types_device.c +++ b/drivers/infiniband/core/uverbs_std_types_device.c @@ -204,6 +204,7 @@ static int UVERBS_HANDLER(UVERBS_METHOD_GET_CONTEXT)( struct uverbs_attr_bundle *attrs) { u32 num_comp = attrs->ufile->device->num_comp_vectors; + u64 core_support = IB_UVERBS_CORE_SUPPORT_OPTIONAL_MR_ACCESS; int ret; ret = uverbs_copy_to(attrs, UVERBS_ATTR_GET_CONTEXT_NUM_COMP_VECTORS, @@ -211,6 +212,11 @@ static int UVERBS_HANDLER(UVERBS_METHOD_GET_CONTEXT)( if (IS_UVERBS_COPY_ERR(ret)) return ret; + ret = uverbs_copy_to(attrs, UVERBS_ATTR_GET_CONTEXT_CORE_SUPPORT, + &core_support, sizeof(core_support)); + if (IS_UVERBS_COPY_ERR(ret)) + return ret; + ret = ib_alloc_ucontext(attrs); if (ret) return ret; @@ -227,6 +233,8 @@ DECLARE_UVERBS_NAMED_METHOD( UVERBS_METHOD_GET_CONTEXT, UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_GET_CONTEXT_NUM_COMP_VECTORS, UVERBS_ATTR_TYPE(u32), UA_OPTIONAL), + UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_GET_CONTEXT_CORE_SUPPORT, + UVERBS_ATTR_TYPE(u64), UA_OPTIONAL), UVERBS_ATTR_UHW()); DECLARE_UVERBS_NAMED_METHOD( |