Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [ 15/73] e1000e: fix accessing to suspended device | Date | Thu, 9 May 2013 15:31:38 -0700 |
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3.8-stable review patch. If anyone has any objections, please let me know.
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From: Konstantin Khlebnikov <khlebnikov@openvz.org>
commit e60b22c5b7e59db09a7c9490b1e132c7e49ae904 upstream.
This patch fixes some annoying messages like 'Error reading PHY register' and 'Hardware Erorr' and saves several seconds on reboot.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: Bruce Allan <bruce.w.allan@intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by: Borislav Petkov <bp@suse.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Tóth Attila <atoth@atoth.sote.hu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/net/ethernet/intel/e1000e/ethtool.c | 13 +++++++++++++ drivers/net/ethernet/intel/e1000e/netdev.c | 2 ++ 2 files changed, 15 insertions(+)
--- a/drivers/net/ethernet/intel/e1000e/ethtool.c +++ b/drivers/net/ethernet/intel/e1000e/ethtool.c @@ -35,6 +35,7 @@ #include <linux/slab.h> #include <linux/delay.h> #include <linux/vmalloc.h> +#include <linux/pm_runtime.h> #include "e1000.h" @@ -2053,7 +2054,19 @@ static int e1000_get_rxnfc(struct net_de } } +static int e1000e_ethtool_begin(struct net_device *netdev) +{ + return pm_runtime_get_sync(netdev->dev.parent); +} + +static void e1000e_ethtool_complete(struct net_device *netdev) +{ + pm_runtime_put_sync(netdev->dev.parent); +} + static const struct ethtool_ops e1000_ethtool_ops = { + .begin = e1000e_ethtool_begin, + .complete = e1000e_ethtool_complete, .get_settings = e1000_get_settings, .set_settings = e1000_set_settings, .get_drvinfo = e1000_get_drvinfo, --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -4313,6 +4313,7 @@ static void e1000_phy_read_status(struct (adapter->hw.phy.media_type == e1000_media_type_copper)) { int ret_val; + pm_runtime_get_sync(&adapter->pdev->dev); ret_val = e1e_rphy(hw, PHY_CONTROL, &phy->bmcr); ret_val |= e1e_rphy(hw, PHY_STATUS, &phy->bmsr); ret_val |= e1e_rphy(hw, PHY_AUTONEG_ADV, &phy->advertise); @@ -4323,6 +4324,7 @@ static void e1000_phy_read_status(struct ret_val |= e1e_rphy(hw, PHY_EXT_STATUS, &phy->estatus); if (ret_val) e_warn("Error reading PHY register\n"); + pm_runtime_put_sync(&adapter->pdev->dev); } else { /* Do not read PHY registers if link is not up * Set values to typical power-on defaults
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