lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

IB/cm: Fix automatic path migration support

Browse Source 
The ib_cm_establish() function is replaced with a more generic
ib_cm_notify().  This routine is used to notify the CM that failover
has occurred, so that future CM messages (LAP, DREQ) reach the remote
CM.  (Currently, we continue to use the original path)  This bumps the
userspace CM ABI.

New alternate path information is captured when a LAP message is sent
or received.  This allows QP attributes to be initialized for the user
when a new path is loaded after failover occurs.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Sean Hefty
2006-11-28 14:57:13 -08:00
committed by Roland Dreier
parent 2745b5b713
commit e1444b5a16
4 changed files with 110 additions and 40 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/infiniband/core/ucm.c
View File

@ -683,11 +683,11 @@ out:
return result;
}
static ssize_t ib_ucm_establish(struct ib_ucm_file *file,
const char __user *inbuf,
int in_len, int out_len)
static ssize_t ib_ucm_notify(struct ib_ucm_file *file,
const char __user *inbuf,
int in_len, int out_len)
{
struct ib_ucm_establish cmd;
struct ib_ucm_notify cmd;
struct ib_ucm_context *ctx;
int result;
@ -698,7 +698,7 @@ static ssize_t ib_ucm_establish(struct ib_ucm_file *file,
if (IS_ERR(ctx))
return PTR_ERR(ctx);
result = ib_cm_establish(ctx->cm_id);
result = ib_cm_notify(ctx->cm_id, (enum ib_event_type) cmd.event);
ib_ucm_ctx_put(ctx);
return result;
}
@ -1105,7 +1105,7 @@ static ssize_t (*ucm_cmd_table[])(struct ib_ucm_file *file,
[IB_USER_CM_CMD_DESTROY_ID] = ib_ucm_destroy_id,
[IB_USER_CM_CMD_ATTR_ID] = ib_ucm_attr_id,
[IB_USER_CM_CMD_LISTEN] = ib_ucm_listen,
[IB_USER_CM_CMD_ESTABLISH] = ib_ucm_establish,
[IB_USER_CM_CMD_NOTIFY] = ib_ucm_notify,
[IB_USER_CM_CMD_SEND_REQ] = ib_ucm_send_req,
[IB_USER_CM_CMD_SEND_REP] = ib_ucm_send_rep,
[IB_USER_CM_CMD_SEND_RTU] = ib_ucm_send_rtu,