netdev - [PATCH 2/2][v2] e1000e: Remove the runtime suspend restriction on CNP+

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Message-Id: <8d92dd25b45f711708701e11d6cf4e4d41b2bddc.1606370334.git.yu.c.chen@intel.com>
Date:   Thu, 26 Nov 2020 14:14:58 +0800
From:   Chen Yu <yu.c.chen@...el.com>
To:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <len.brown@...el.com>,
        Paul Menzel <pmenzel@...gen.mpg.de>,
        "Kai-Heng Feng" <kai.heng.feng@...onical.com>
Cc:     linux-pm@...r.kernel.org, intel-wired-lan@...ts.osuosl.org,
        netdev@...r.kernel.org, Jakub Kicinski <kuba@...nel.org>,
        Jesse Brandeburg <jesse.brandeburg@...el.com>,
        Sasha Neftin <sasha.neftin@...el.com>,
        Tony Nguyen <anthony.l.nguyen@...el.com>,
        Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
        Chen Yu <yu.c.chen@...el.com>
Subject: [PATCH 2/2][v2] e1000e: Remove the runtime suspend restriction on CNP+

Although there is platform issue of runtime suspend support
on CNP, it would be more flexible to let the user decide whether
to disable runtime or not because:
1. This can be done in userspace via
   echo on > /sys/devices/pci0000\:00/0000\:00\:1f.d/power/control
2. More and more NICs would support runtime suspend, disabling the
   runtime suspend on them by default would impact the validation.

Signed-off-by: Chen Yu <yu.c.chen@...el.com>
---
 drivers/net/ethernet/intel/e1000e/netdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index e32d443feb24..2850535db7a1 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -7684,7 +7684,7 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE |
 				DPM_FLAG_SMART_SUSPEND | DPM_FLAG_MAY_SKIP_RESUME);
 
-	if (pci_dev_run_wake(pdev) && hw->mac.type < e1000_pch_cnp)
+	if (pci_dev_run_wake(pdev))
 		pm_runtime_put_noidle(&pdev->dev);
 
 	return 0;
-- 
2.17.1