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| author | Bruce Allan <bruce.w.allan@intel.com> | 2009-11-20 23:24:11 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-11-21 11:33:58 -0800 |
| commit | bb436b20fe0ea4231a233aae7f0f7de3a3f2f5c3 (patch) | |
| tree | 168d6084a2d2352c7236d13a4b2d9b1db37051d3 | |
| parent | 98086a954a75152f8b09c131fa443205bae5fde1 (diff) | |
| download | linux-3.10-bb436b20fe0ea4231a233aae7f0f7de3a3f2f5c3.tar.gz linux-3.10-bb436b20fe0ea4231a233aae7f0f7de3a3f2f5c3.tar.bz2 linux-3.10-bb436b20fe0ea4231a233aae7f0f7de3a3f2f5c3.zip | |
e1000e: disable K1 on PCH LOM when in PHY loopback mode
When performing the ethtool PHY loopback test on PCH-based LOMs (82577 and
82578), disable K1 (a MAC-PHY interconnect low power mode) otherwise
packets might get corrupted.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/e1000e/e1000.h | 1 | ||||
| -rw-r--r-- | drivers/net/e1000e/ethtool.c | 4 | ||||
| -rw-r--r-- | drivers/net/e1000e/ich8lan.c | 3 |
3 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h index 00989c5534c..a6c68039e8d 100644 --- a/drivers/net/e1000e/e1000.h +++ b/drivers/net/e1000e/e1000.h @@ -485,6 +485,7 @@ extern void e1000e_set_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw, extern void e1000e_igp3_phy_powerdown_workaround_ich8lan(struct e1000_hw *hw); extern void e1000e_gig_downshift_workaround_ich8lan(struct e1000_hw *hw); extern void e1000e_disable_gig_wol_ich8lan(struct e1000_hw *hw); +extern s32 e1000_configure_k1_ich8lan(struct e1000_hw *hw, bool k1_enable); extern s32 e1000e_check_for_copper_link(struct e1000_hw *hw); extern s32 e1000e_check_for_fiber_link(struct e1000_hw *hw); diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c index 67e06fd9fc4..fd7921482d2 100644 --- a/drivers/net/e1000e/ethtool.c +++ b/drivers/net/e1000e/ethtool.c @@ -1260,6 +1260,10 @@ static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter) hw->mac.autoneg = 0; + /* Workaround: K1 must be disabled for stable 1Gbps operation */ + if (hw->mac.type == e1000_pchlan) + e1000_configure_k1_ich8lan(hw, false); + if (hw->phy.type == e1000_phy_m88) { /* Auto-MDI/MDIX Off */ e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, 0x0808); diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c index 51ddb04ab19..bd9002e72cb 100644 --- a/drivers/net/e1000e/ich8lan.c +++ b/drivers/net/e1000e/ich8lan.c @@ -224,7 +224,6 @@ static s32 e1000_led_off_pchlan(struct e1000_hw *hw); static s32 e1000_set_lplu_state_pchlan(struct e1000_hw *hw, bool active); static void e1000_lan_init_done_ich8lan(struct e1000_hw *hw); static s32 e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link); -static s32 e1000_configure_k1_ich8lan(struct e1000_hw *hw, bool k1_enable); static inline u16 __er16flash(struct e1000_hw *hw, unsigned long reg) { @@ -1023,7 +1022,7 @@ out: * * Success returns 0, Failure returns -E1000_ERR_PHY (-2) **/ -static s32 e1000_configure_k1_ich8lan(struct e1000_hw *hw, bool k1_enable) +s32 e1000_configure_k1_ich8lan(struct e1000_hw *hw, bool k1_enable) { s32 ret_val = 0; u32 ctrl_reg = 0; |