From: Chen Yu <yu.c.chen@intel.com>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
Len Brown <len.brown@intel.com>,
Paul Menzel <pmenzel@molgen.mpg.de>,
"Kai-Heng Feng" <kai.heng.feng@canonical.com>
Cc: linux-pm@vger.kernel.org, intel-wired-lan@lists.osuosl.org,
netdev@vger.kernel.org, Jakub Kicinski <kuba@kernel.org>,
Jesse Brandeburg <jesse.brandeburg@intel.com>,
Sasha Neftin <sasha.neftin@intel.com>,
Tony Nguyen <anthony.l.nguyen@intel.com>,
Jeff Kirsher <jeffrey.t.kirsher@intel.com>,
Chen Yu <yu.c.chen@intel.com>
Subject: [PATCH 0/2][v2] Leverage runtime suspend to speed up the s2ram on e1000e
Date: Thu, 26 Nov 2020 14:14:15 +0800 [thread overview]
Message-ID: <cover.1606370334.git.yu.c.chen@intel.com> (raw)
The NIC is put in runtime suspend status when there is no cable connected.
As a result, it is safe to keep non-wakeup NIC in runtime suspended during
s2ram because the system does not rely on the NIC plug event nor WoL to wake
up the system. After doing this, the s2ram could speed up the suspend/resume
process a lot.
Chen Yu (2):
e1000e: Assign DPM_FLAG_SMART_SUSPEND and DPM_FLAG_MAY_SKIP_RESUME to
speed up s2ram
e1000e: Remove the runtime suspend restriction on CNP+
drivers/base/power/main.c | 2 ++
drivers/net/ethernet/intel/e1000e/netdev.c | 21 +++++++++++++++++++--
2 files changed, 21 insertions(+), 2 deletions(-)
--
2.17.1
next reply other threads:[~2020-11-26 6:12 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-26 6:14 Chen Yu [this message]
2020-11-26 6:14 ` [PATCH 1/2][v2] e1000e: Assign DPM_FLAG_SMART_SUSPEND and DPM_FLAG_MAY_SKIP_RESUME to speed up s2ram Chen Yu
2020-12-03 3:44 ` Chen Yu
2020-11-26 6:14 ` [PATCH 2/2][v2] e1000e: Remove the runtime suspend restriction on CNP+ Chen Yu
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