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scsi: fc: Update documentation of sysfs nodes for FPIN stats

Update documentation for sysfs nodes within:

/sys/class/fc_host
/sys/class/fc_remote_ports

Link: https://lore.kernel.org/r/20201021092715.22669-6-njavali@marvell.com
Reviewed-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Shyam Sundar <ssundar@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

authored by

Shyam Sundar and committed by
Martin K. Petersen 434ee425 84610196

+46
+23
Documentation/ABI/testing/sysfs-class-fc_host
··· 1 + What: /sys/class/fc_host/hostX/statistics/fpin_cn_yyy 2 + Date: July 2020 3 + Contact: Shyam Sundar <ssundar@marvell.com> 4 + Description: 5 + These files contain the number of congestion notification 6 + events recorded by the F_Port, reported using fabric 7 + performance impact notification (FPIN) event. 8 + 9 + What: /sys/class/fc_host/hostX/statistics/fpin_li_yyy 10 + Date: July 2020 11 + Contact: Shyam Sundar <ssundar@marvell.com> 12 + Description: 13 + These files contain the number of link integrity error 14 + events recorded by the F_Port/Nx_Port, reported using fabric 15 + performance impact notification (FPIN) event. 16 + 17 + What: /sys/class/fc_host/hostX/statistics/fpin_dn_yyy 18 + Date: July 2020 19 + Contact: Shyam Sundar <ssundar@marvell.com> 20 + Description: 21 + These files contain the number of delivery related errors 22 + recorded by the F_Port/Nx_Port, reported using fabric 23 + performance impact notification (FPIN) event.
+23
Documentation/ABI/testing/sysfs-class-fc_remote_ports
··· 1 + What: /sys/class/fc_remote_ports/rport-X:Y-Z/statistics/fpin_cn_yyy 2 + Date: July 2020 3 + Contact: Shyam Sundar <ssundar@marvell.com> 4 + Description: 5 + These files contain the number of congestion notification 6 + events recorded by the F_Port/Nx_Port, reported using fabric 7 + performance impact notification (FPIN) event. 8 + 9 + What: /sys/class/fc_remote_ports/rport-X:Y-Z/statistics/fpin_li_yyy 10 + Date: July 2020 11 + Contact: Shyam Sundar <ssundar@marvell.com> 12 + Description: 13 + These files contain the number of link integrity error 14 + events recorded by the F_Port/Nx_Port, reported using fabric 15 + performance impact notification (FPIN) event. 16 + 17 + What: /sys/class/fc_remote_ports/rport-X:Y-Z/statistics/fpin_dn_yyy 18 + Date: July 2020 19 + Contact: Shyam Sundar <ssundar@marvell.com> 20 + Description: 21 + These files contain the number of delivery related errors 22 + recorded by the F_Port/Nx_Port, reported using fabric 23 + performance impact notification (FPIN) event.