From 726c09e7b6b7b9f9015ae7ce803ba4cd67121d67 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Mon, 4 Aug 2008 14:59:56 -0700 Subject: [PATCH] igb: fixes 82576 serdes init to correctly support manual flow control changes This patch changes the PCS configuration for serdes so that the flow control options change be set via the ethtool -A option. Signed-off-by: Alexander Duyck Signed-off-by: Jeff Kirsher Signed-off-by: Jeff Garzik --- drivers/net/igb/e1000_82575.c | 6 ++++++ drivers/net/igb/e1000_defines.h | 1 + 2 files changed, 7 insertions(+) diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c index f3d7be0427fe..cd75a2bc24a0 100644 --- a/drivers/net/igb/e1000_82575.c +++ b/drivers/net/igb/e1000_82575.c @@ -1136,6 +1136,12 @@ static s32 igb_setup_fiber_serdes_link_82575(struct e1000_hw *hw) E1000_PCS_LCTL_FORCE_LINK; /* Force Link */ hw_dbg("Configuring Forced Link; PCS_LCTL = 0x%08X\n", reg); } + + if (hw->mac.type == e1000_82576) { + reg |= E1000_PCS_LCTL_FORCE_FCTRL; + igb_force_mac_fc(hw); + } + wr32(E1000_PCS_LCTL, reg); return 0; diff --git a/drivers/net/igb/e1000_defines.h b/drivers/net/igb/e1000_defines.h index afdba3c9073c..ce700689fb57 100644 --- a/drivers/net/igb/e1000_defines.h +++ b/drivers/net/igb/e1000_defines.h @@ -257,6 +257,7 @@ #define E1000_PCS_LCTL_FDV_FULL 8 #define E1000_PCS_LCTL_FSD 0x10 #define E1000_PCS_LCTL_FORCE_LINK 0x20 +#define E1000_PCS_LCTL_FORCE_FCTRL 0x80 #define E1000_PCS_LCTL_AN_ENABLE 0x10000 #define E1000_PCS_LCTL_AN_RESTART 0x20000 #define E1000_PCS_LCTL_AN_TIMEOUT 0x40000 -- 2.30.2