From 6032fb56c546c0a14856dc57a92d84560816b217 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Fri, 27 Jul 2012 19:35:47 +0100 Subject: [PATCH] sfc: Keep disabled NICs quiescent during suspend/resume Currently we ignore and clear the disabled state. Signed-off-by: Ben Hutchings --- drivers/net/ethernet/sfc/efx.c | 28 ++++++++++++++++------------ 1 file changed, 16 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c index e5f3a17349af..f02591bb62f4 100644 --- a/drivers/net/ethernet/sfc/efx.c +++ b/drivers/net/ethernet/sfc/efx.c @@ -2729,12 +2729,14 @@ static int efx_pm_freeze(struct device *dev) rtnl_lock(); - efx->state = STATE_UNINIT; + if (efx->state != STATE_DISABLED) { + efx->state = STATE_UNINIT; - netif_device_detach(efx->net_dev); + netif_device_detach(efx->net_dev); - efx_stop_all(efx); - efx_stop_interrupts(efx, false); + efx_stop_all(efx); + efx_stop_interrupts(efx, false); + } rtnl_unlock(); @@ -2747,19 +2749,21 @@ static int efx_pm_thaw(struct device *dev) rtnl_lock(); - efx_start_interrupts(efx, false); + if (efx->state != STATE_DISABLED) { + efx_start_interrupts(efx, false); - mutex_lock(&efx->mac_lock); - efx->phy_op->reconfigure(efx); - mutex_unlock(&efx->mac_lock); + mutex_lock(&efx->mac_lock); + efx->phy_op->reconfigure(efx); + mutex_unlock(&efx->mac_lock); - efx_start_all(efx); + efx_start_all(efx); - netif_device_attach(efx->net_dev); + netif_device_attach(efx->net_dev); - efx->state = STATE_READY; + efx->state = STATE_READY; - efx->type->resume_wol(efx); + efx->type->resume_wol(efx); + } rtnl_unlock(); -- 2.20.1