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2018-01-23SUNRPC: Micro-optimize __rpc_executeChuck Lever1-13/+11
The common case: There are 13 to 14 actions per RPC, and tk_callback is non-NULL in only one of them. There's no need to store a NULL in the tk_callback field during each FSM step. This slightly improves throughput results in dbench and other multi- threaded benchmarks on my two-socket client on 56Gb InfiniBand, but will probably be inconsequential on slower systems. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2018-01-23SUNRPC: task_run_action should display tk_callbackChuck Lever1-1/+1
This shows up in every RPC: kworker/4:1-19772 [004] 3467.373443: rpc_task_run_action: task:4711@2 flags=0e81 state=0005 status=0 action=call_status kworker/4:1-19772 [004] 3467.373444: rpc_task_run_action: task:4711@2 flags=0e81 state=0005 status=0 action=call_status What's actually going on is that the first iteration of the RPC scheduler is invoking the function in tk_callback (in this case, xprt_timer), then invoking call_status on the next iteration. Feeding do_action, rather than tk_action, to the "task_run_action" trace point will now always display the correct FSM step. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2018-01-23sunrpc: Format RPC events consistently for displayChuck Lever1-2/+2
Clean up: Make it easier to use text search when browsing a trace report. Other events use "status=%d". Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2018-01-23SUNRPC: Trace xprt_timer eventsChuck Lever3-3/+5
Track RPC timeouts: report the XID and the server address to match the content of network capture. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2018-01-23xprtrdma: Correct some documenting commentsChuck Lever2-2/+2
Fix kernel-doc warnings in net/sunrpc/xprtrdma/ . net/sunrpc/xprtrdma/verbs.c:1575: warning: No description found for parameter 'count' net/sunrpc/xprtrdma/verbs.c:1575: warning: Excess function parameter 'min_reqs' description in 'rpcrdma_ep_post_extra_recv' net/sunrpc/xprtrdma/backchannel.c:288: warning: No description found for parameter 'r_xprt' net/sunrpc/xprtrdma/backchannel.c:288: warning: Excess function parameter 'xprt' description in 'rpcrdma_bc_receive_call' Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2018-01-23xprtrdma: Fix "bytes registered" accountingChuck Lever1-2/+2
The contents of seg->mr_len changed when ->ro_map stopped returning the full chunk length in the first segment. Count the full length of each Write chunk, not the length of the first segment (which now can only be as large as a page). Fixes: 9d6b04097882 ("xprtrdma: Place registered MWs on a ... ") Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2018-01-23xprtrdma: Instrument allocation/release of rpcrdma_req/rep objectsChuck Lever3-9/+74
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2018-01-23xprtrdma: Add trace points to instrument QP and CQ access upcallsChuck Lever2-0/+34
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2018-01-23xprtrdma: Add trace points in the client-side backchannel code pathsChuck Lever3-5/+73
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2018-01-23xprtrdma: Add trace points for connect eventsChuck Lever3-28/+92
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2018-01-23xprtrdma: Add trace points to instrument MR allocation and recoveryChuck Lever2-3/+60
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2018-01-23xprtrdma: Add trace points to instrument memory invalidationChuck Lever4-16/+57
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2018-01-23xprtrdma: Add trace points in reply decoder pathChuck Lever2-20/+102
This includes decoding Write and Reply chunks, and fixing up inline payloads. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2018-01-23xprtrdma: Add trace points to instrument memory registrationChuck Lever3-22/+163
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2018-01-23xprtrdma: Add trace points in the RPC Reply handler pathsChuck Lever3-19/+171
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2018-01-23xprtrdma: Add trace points in RPC Call transmit pathsChuck Lever3-15/+129
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2018-01-23rpcrdma: infrastructure for static trace points in rpcrdma.koChuck Lever3-5/+25
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>