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IB/mad: Add user space RMPP support

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Using the new registration mechanism, define a flag that indicates the
user wishes to process RMPP messages in user space rather than have
the kernel process them.

Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Ira Weiny
2014-08-08 19:00:56 -04:00
committed by Roland Dreier
parent 0f29b46d49
commit 1471cb6ca6
4 changed files with 89 additions and 37 deletions
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11
include/rdma/ib_mad.h
View File

@@ -40,6 +40,7 @@
#include <linux/list.h>
#include <rdma/ib_verbs.h>
#include <uapi/rdma/ib_user_mad.h>
/* Management base version */
#define IB_MGMT_BASE_VERSION 1
@@ -359,6 +360,9 @@ typedef void (*ib_mad_recv_handler)(struct ib_mad_agent *mad_agent,
* @port_num: Port number on which QP is registered
* @rmpp_version: If set, indicates the RMPP version used by this agent.
*/
enum {
IB_MAD_USER_RMPP = IB_USER_MAD_USER_RMPP,
};
struct ib_mad_agent {
struct ib_device *device;
struct ib_qp *qp;
@@ -666,4 +670,11 @@ void *ib_get_rmpp_segment(struct ib_mad_send_buf *send_buf, int seg_num);
*/
void ib_free_send_mad(struct ib_mad_send_buf *send_buf);
/**
* ib_mad_kernel_rmpp_agent - Returns if the agent is performing RMPP.
* @agent: the agent in question
* @return: true if agent is performing rmpp, false otherwise.
*/
int ib_mad_kernel_rmpp_agent(struct ib_mad_agent *agent);
#endif /* IB_MAD_H */

5
include/uapi/rdma/ib_user_mad.h
View File

@@ -213,7 +213,10 @@ struct ib_user_mad_reg_req {
* used.
* @rmpp_version - If set, indicates the RMPP version to use.
*/
#define IB_USER_MAD_REG_FLAGS_CAP (0)
enum {
IB_USER_MAD_USER_RMPP = (1 << 0),
};
#define IB_USER_MAD_REG_FLAGS_CAP (IB_USER_MAD_USER_RMPP)
struct ib_user_mad_reg_req2 {
__u32 id;
__u32 qpn;