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xprtrdma: Modernize ops->connect

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Adapt and apply changes that were made to the TCP socket connect
code. See the following commits for details on the purpose of
these changes:

Commit 7196dbb02e ("SUNRPC: Allow changing of the TCP timeout parameters on the fly")
Commit 3851f1cdb2 ("SUNRPC: Limit the reconnect backoff timer to the max RPC message timeout")
Commit 02910177ae ("SUNRPC: Fix reconnection timeouts")

Some common transport code is moved to xprt.c to satisfy the code
duplication police.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever
2019-06-19 10:33:42 -04:00
committed by Anna Schumaker
parent 5828cebad1
commit 675dd90ad0
7 changed files with 121 additions and 36 deletions
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31
include/trace/events/rpcrdma.h
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@@ -375,6 +375,37 @@ DEFINE_RXPRT_EVENT(xprtrdma_op_inject_dsc);
DEFINE_RXPRT_EVENT(xprtrdma_op_close);
DEFINE_RXPRT_EVENT(xprtrdma_op_connect);
TRACE_EVENT(xprtrdma_op_set_cto,
TP_PROTO(
const struct rpcrdma_xprt *r_xprt,
unsigned long connect,
unsigned long reconnect
),
TP_ARGS(r_xprt, connect, reconnect),
TP_STRUCT__entry(
__field(const void *, r_xprt)
__field(unsigned long, connect)
__field(unsigned long, reconnect)
__string(addr, rpcrdma_addrstr(r_xprt))
__string(port, rpcrdma_portstr(r_xprt))
),
TP_fast_assign(
__entry->r_xprt = r_xprt;
__entry->connect = connect;
__entry->reconnect = reconnect;
__assign_str(addr, rpcrdma_addrstr(r_xprt));
__assign_str(port, rpcrdma_portstr(r_xprt));
),
TP_printk("peer=[%s]:%s r_xprt=%p: connect=%lu reconnect=%lu",
__get_str(addr), __get_str(port), __entry->r_xprt,
__entry->connect / HZ, __entry->reconnect / HZ
)
);
TRACE_EVENT(xprtrdma_qp_event,
TP_PROTO(
const struct rpcrdma_xprt *r_xprt,