RCPx entry for invoking a RoCE verb (Part 1)

Entry:
RCPx
VIT option:
CIA
Event:
Invocation of a Remote Direct Memory Access (RDMA) over Converged Ethernet (RoCE) verb, as part of Shared Memory Communications over Remote Direct Memory Access (SMC-R) processing.
VIT processing module:
ISTITCSH
Control is returned to:
The module that issued the INTRACE macroinstruction

This trace record is written upon invocation or completion of a RoCE verb.

The contents of the trace record are described after the figure.
Byte (hex)
Contents
00–03
Record ID:
  • C'RCPI' for the RoCE parameter list information before the call
  • C'RCPO' for the RoCE parameter list information after the call
04
ID is the primary address space ID (ASID). This field is 0 if the ASID is greater than X'FF'.
05
Instance identifier within the module
06–07
Length of the parameter list (PLIST) that is used for the RoCE verb invocation
08–0B
A related control block for this particular ROCE verb. This control block can be either a storage control block or a control block that represents the queue pair, VLAN, or 10GbE RoCE Express® interface that this verb affects.
0C–0F
Address of the associated RUNCB
10–13
Address of the associated SRNCB
14–17
Parameter list address. This is a 64-bit address, but only the lower 32 bits are shown in the trace record.
18–19
Last 2 characters of the module that issued the RoCE verb
1A–1B
Peripheral Component Interconnect Express (PCIe) function ID (PFID) defining the 10GbE RoCE Express interface that was the target of the RoCE verb, in hexadecimal
1C–1F
Request parameter header (RPH) address