INCITS T10, Project 1828-D, Revision 00a |
10/30/06 |
Table 17 - FCP Information Units (IUs) sent to initiator FCP_Ports
IU |
SCSI |
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Data block |
F/M/L |
SI |
M/O |
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primitive |
CAT |
Content |
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I1 |
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Data delivery request |
5 |
FCP_XFER_RDY (Write) |
M |
T |
M |
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I3 |
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Data-In action |
1 |
FCP_DATA |
M |
H |
M |
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I4 |
|
Command/Task Mgmt Response |
7 |
FCP_RSP |
L |
T |
M |
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I5 |
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Response (Linked or confirm request) |
7 |
FCP_RSP |
M |
T |
O |
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Notes: |
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I2, I6, and I7 are obsolete. |
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I5 is permitted for linked SCSI commands or to request the confirm completion protocol. |
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I3 allows optional sequence streaming to I3, I4, or I5. |
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Key: |
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IU |
Information Unit identifier |
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CAT |
Information category of Device_Data frames carrying the data block |
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(FC-FS-2) |
Content |
Contents (payload) of data block |
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F/M/L |
First/Middle/Last Sequence of Exchange (FC-FS-2) |
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F |
First |
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M |
Middle |
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L |
Last |
SI |
Sequence Initiative: Held or Transferred (FC-FS-2) |
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H |
Held |
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T |
Transferred |
M/O |
Mandatory/Optional Sequence |
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M |
Mandatory |
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O |
Optional |
9.2FCP_CMND IU
9.2.1Overview and format of FCP_CMND IU
The FCP_CMND IU carries either a SCSI Command or a task management request. If an invalid combination of bits is set in the FCP_CMND IU, the target FCP_Port shall respond with an FCP_RSP IU with the RSP_CODE
37 |
Working Draft, FCP-4 |