linux_dsm_epyc7002/drivers/nvme/host
Kai-Heng Feng 9947d6a09c nvme: relax APST default max latency to 100ms
Christoph Hellwig suggests we should to make APST work out of the box.
Hence relax the the default max latency to make them able to enter
deepest power state on default.

Here are id-ctrl excerpts from two high latency NVMes:

vid     : 0x14a4
ssvid   : 0x1b4b
mn      : CX2-GB1024-Q11 NVMe LITEON 1024GB
ps    3 : mp:0.1000W non-operational enlat:5000 exlat:5000 rrt:3 rrl:3
          rwt:3 rwl:3 idle_power:- active_power:-
ps    4 : mp:0.0100W non-operational enlat:50000 exlat:100000 rrt:4 rrl:4
          rwt:4 rwl:4 idle_power:- active_power:-

vid     : 0x15b7
ssvid   : 0x1b4b
mn      : A400 NVMe SanDisk 512GB
ps    3 : mp:0.0500W non-operational enlat:51000 exlat:10000 rrt:0 rrl:0
          rwt:0 rwl:0 idle_power:- active_power:-
ps    4 : mp:0.0055W non-operational enlat:1000000 exlat:100000 rrt:0 rrl:0
          rwt:0 rwl:0 idle_power:- active_power:-

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-06-07 11:08:55 +02:00
..
core.c nvme: relax APST default max latency to 100ms 2017-06-07 11:08:55 +02:00
fabrics.c nvme-fabrics: Allow ctrl loss timeout configuration 2017-04-04 09:48:23 -06:00
fabrics.h nvme-fabrics: Allow ctrl loss timeout configuration 2017-04-04 09:48:23 -06:00
fc.c nvme-fc: fix missing put reference on controller create failure 2017-06-07 11:08:53 +02:00
Kconfig nvme-fabrics: Add host support for FC transport 2016-12-06 10:17:56 +02:00
lightnvm.c nvme: lightnvm: fix memory leak 2017-05-10 07:39:43 -06:00
Makefile nvme-fabrics: Add host support for FC transport 2016-12-06 10:17:56 +02:00
nvme.h nvme: only setup block integrity if supported by the driver 2017-05-26 09:54:23 +03:00
pci.c nvme-pci: fix multiple ctrl removal scheduling 2017-06-07 11:08:50 +02:00
rdma.c nvme-rdma: fast fail incoming requests while we reconnect 2017-06-07 11:08:51 +02:00
scsi.c nvme-scsi: remove nvme_trans_security_protocol 2017-04-27 08:39:32 +02:00