]> git.baikalelectronics.ru Git - kernel.git/commit
scsi: scsi_transport_fc: Fix FPIN Link Integrity statistics counters
authorJames Smart <jsmart2021@gmail.com>
Tue, 1 Mar 2022 17:55:36 +0000 (09:55 -0800)
committerMartin K. Petersen <martin.petersen@oracle.com>
Wed, 2 Mar 2022 04:56:27 +0000 (23:56 -0500)
commitd98b23d0e61220e3d4764af0f26914af1ae876e4
tree2f28460e0414cc597f564454c3357836adff2c1f
parent1960160dec606c6dc37bf7c7347f33f1fc2fb85b
scsi: scsi_transport_fc: Fix FPIN Link Integrity statistics counters

In the original FPIN commit, stats were incremented by the event_count.
Event_count is the minimum # of events that must occur before an FPIN is
sent. Thus, its not the actual number of events, and could be significantly
off (too low) as it doesn't reflect anything not reported.  Rather than
attempt to count events, have the statistic count how many FPINS cross the
threshold and were reported.

Link: https://lore.kernel.org/r/20220301175536.60250-1-jsmart2021@gmail.com
Fixes: 27f6897c3789 ("scsi: fc: Parse FPIN packets and update statistics")
Cc: <stable@vger.kernel.org> # v5.11+
Cc: Shyam Sundar <ssundar@marvell.com>
Cc: Nilesh Javali <njavali@marvell.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/scsi_transport_fc.c