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[PATCH] IB: Add user-supplied context to userspace CM ABI

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- Add user specified context to all uCM events.  Users will not retrieve
  any events associated with the context after destroying the corresponding
  cm_id.
- Provide the ib_cm_init_qp_attr() call to userspace clients of the CM.
  This call may be used to set QP attributes properly before modifying the QP.
- Fixes some error handling synchonization and cleanup issues.
- Performs some minor code cleanup.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Sean Hefty
2005-09-01 09:28:03 -07:00
committed by Roland Dreier
parent 1d6801f9dd
commit 0b2b35f681
3 changed files with 262 additions and 110 deletions
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72
include/rdma/ib_user_cm.h
View File

@@ -1,5 +1,6 @@
/*
* Copyright (c) 2005 Topspin Communications. All rights reserved.
* Copyright (c) 2005 Intel Corporation. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
@@ -37,7 +38,7 @@
#include <linux/types.h>
#define IB_USER_CM_ABI_VERSION 1
#define IB_USER_CM_ABI_VERSION 2
enum {
IB_USER_CM_CMD_CREATE_ID,
@@ -60,6 +61,7 @@ enum {
IB_USER_CM_CMD_SEND_SIDR_REP,
IB_USER_CM_CMD_EVENT,
IB_USER_CM_CMD_INIT_QP_ATTR,
};
/*
* command ABI structures.
@@ -71,6 +73,7 @@ struct ib_ucm_cmd_hdr {
};
struct ib_ucm_create_id {
__u64 uid;
__u64 response;
};
@@ -79,9 +82,14 @@ struct ib_ucm_create_id_resp {
};
struct ib_ucm_destroy_id {
__u64 response;
__u32 id;
};
struct ib_ucm_destroy_id_resp {
__u32 events_reported;
};
struct ib_ucm_attr_id {
__u64 response;
__u32 id;
@@ -94,6 +102,64 @@ struct ib_ucm_attr_id_resp {
__be32 remote_id;
};
struct ib_ucm_init_qp_attr {
__u64 response;
__u32 id;
__u32 qp_state;
};
struct ib_ucm_ah_attr {
__u8 grh_dgid[16];
__u32 grh_flow_label;
__u16 dlid;
__u16 reserved;
__u8 grh_sgid_index;
__u8 grh_hop_limit;
__u8 grh_traffic_class;
__u8 sl;
__u8 src_path_bits;
__u8 static_rate;
__u8 is_global;
__u8 port_num;
};
struct ib_ucm_init_qp_attr_resp {
__u32 qp_attr_mask;
__u32 qp_state;
__u32 cur_qp_state;
__u32 path_mtu;
__u32 path_mig_state;
__u32 qkey;
__u32 rq_psn;
__u32 sq_psn;
__u32 dest_qp_num;
__u32 qp_access_flags;
struct ib_ucm_ah_attr ah_attr;
struct ib_ucm_ah_attr alt_ah_attr;
/* ib_qp_cap */
__u32 max_send_wr;
__u32 max_recv_wr;
__u32 max_send_sge;
__u32 max_recv_sge;
__u32 max_inline_data;
__u16 pkey_index;
__u16 alt_pkey_index;
__u8 en_sqd_async_notify;
__u8 sq_draining;
__u8 max_rd_atomic;
__u8 max_dest_rd_atomic;
__u8 min_rnr_timer;
__u8 port_num;
__u8 timeout;
__u8 retry_cnt;
__u8 rnr_retry;
__u8 alt_port_num;
__u8 alt_timeout;
};
struct ib_ucm_listen {
__be64 service_id;
__be64 service_mask;
@@ -157,6 +223,7 @@ struct ib_ucm_req {
};
struct ib_ucm_rep {
__u64 uid;
__u64 data;
__u32 id;
__u32 qpn;
@@ -232,7 +299,6 @@ struct ib_ucm_event_get {
};
struct ib_ucm_req_event_resp {
__u32 listen_id;
/* device */
/* port */
struct ib_ucm_path_rec primary_path;
@@ -287,7 +353,6 @@ struct ib_ucm_apr_event_resp {
};
struct ib_ucm_sidr_req_event_resp {
__u32 listen_id;
/* device */
/* port */
__u16 pkey;
@@ -307,6 +372,7 @@ struct ib_ucm_sidr_rep_event_resp {
#define IB_UCM_PRES_ALTERNATE 0x08
struct ib_ucm_event_resp {
__u64 uid;
__u32 id;
__u32 event;
__u32 present;