diff options
| author | Yann Droneaud <ydroneaud@opteya.com> | 2013-11-06 23:21:48 +0100 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2013-11-17 08:22:08 -0800 |
| commit | 2490f20be496c2da14ae4632a8c60e0633e97fd0 (patch) | |
| tree | 4c80e3d5dc5004eebd5fc3dcccf4b26f2b16d644 /drivers/infiniband/core | |
| parent | 58913efba9c3aa7992f2a4d630135ded833d988e (diff) | |
IB/core: Remove ib_uverbs_flow_spec structure from userspace
The structure holding any types of flow_spec is of no use to
userspace. It would be wrong for userspace to do:
struct ib_uverbs_flow_spec flow_spec;
flow_spec.type = IB_FLOW_SPEC_TCP;
flow_spec.size = sizeof(flow_spec);
Instead, userspace should use the dedicated flow_spec structure for
- Ethernet : struct ib_uverbs_flow_spec_eth,
- IPv4 : struct ib_uverbs_flow_spec_ipv4,
- TCP/UDP : struct ib_uverbs_flow_spec_tcp_udp.
In other words, struct ib_uverbs_flow_spec is a "virtual" data
structure that can only be use by the kernel as an alias to the other.
Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Link: http://marc.info/?i=cover.1383773832.git.ydroneaud@opteya.com
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/core')
| -rw-r--r-- | drivers/infiniband/core/uverbs.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h index d8f9c6c272d..777954f6727 100644 --- a/drivers/infiniband/core/uverbs.h +++ b/drivers/infiniband/core/uverbs.h @@ -178,6 +178,22 @@ void ib_uverbs_event_handler(struct ib_event_handler *handler, struct ib_event *event); void ib_uverbs_dealloc_xrcd(struct ib_uverbs_device *dev, struct ib_xrcd *xrcd); +struct ib_uverbs_flow_spec { + union { + union { + struct ib_uverbs_flow_spec_hdr hdr; + struct { + __u32 type; + __u16 size; + __u16 reserved; + }; + }; + struct ib_uverbs_flow_spec_eth eth; + struct ib_uverbs_flow_spec_ipv4 ipv4; + struct ib_uverbs_flow_spec_tcp_udp tcp_udp; + }; +}; + #define IB_UVERBS_DECLARE_CMD(name) \ ssize_t ib_uverbs_##name(struct ib_uverbs_file *file, \ const char __user *buf, int in_len, \ |