From fe59de38c58d3eedc025be61ff3055a41776bbd4 Mon Sep 17 00:00:00 2001 From: Alexander Duyck <alexander.h.duyck@intel.com> Date: Tue, 26 Aug 2008 04:25:05 -0700 Subject: [PATCH] igb: ethtool -d reads EICR which is incorrect as it is read on clear Ethtool -d is reading the EICR and ICR registers which is currently clearing these registers and masking off interrupts. To prevent this we read the EICS and ICS equivilents as they can be read without clearing or masking. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> --- drivers/net/igb/igb_ethtool.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c index 11aee1309951..3eb78a66f8b6 100644 --- a/drivers/net/igb/igb_ethtool.c +++ b/drivers/net/igb/igb_ethtool.c @@ -373,13 +373,17 @@ static void igb_get_regs(struct net_device *netdev, regs_buff[12] = rd32(E1000_EECD); /* Interrupt */ - regs_buff[13] = rd32(E1000_EICR); + /* Reading EICS for EICR because they read the + * same but EICS does not clear on read */ + regs_buff[13] = rd32(E1000_EICS); regs_buff[14] = rd32(E1000_EICS); regs_buff[15] = rd32(E1000_EIMS); regs_buff[16] = rd32(E1000_EIMC); regs_buff[17] = rd32(E1000_EIAC); regs_buff[18] = rd32(E1000_EIAM); - regs_buff[19] = rd32(E1000_ICR); + /* Reading ICS for ICR because they read the + * same but ICS does not clear on read */ + regs_buff[19] = rd32(E1000_ICS); regs_buff[20] = rd32(E1000_ICS); regs_buff[21] = rd32(E1000_IMS); regs_buff[22] = rd32(E1000_IMC); -- GitLab