diff options
| -rw-r--r-- | drivers/net/ethernet/intel/igb/e1000_82575.c | 76 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igb/e1000_defines.h | 11 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igb/e1000_hw.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_main.c | 6 |
5 files changed, 96 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.c b/drivers/net/ethernet/intel/igb/e1000_82575.c index 47c2d10..fe9db48 100644 --- a/drivers/net/ethernet/intel/igb/e1000_82575.c +++ b/drivers/net/ethernet/intel/igb/e1000_82575.c @@ -113,6 +113,59 @@ static bool igb_sgmii_uses_mdio_82575(struct e1000_hw *hw) } /** + * igb_check_for_link_media_swap - Check which M88E1112 interface linked + * @hw: pointer to the HW structure + * + * Poll the M88E1112 interfaces to see which interface achieved link. + */ +static s32 igb_check_for_link_media_swap(struct e1000_hw *hw) +{ + struct e1000_phy_info *phy = &hw->phy; + s32 ret_val; + u16 data; + u8 port = 0; + + /* Check the copper medium. */ + ret_val = phy->ops.write_reg(hw, E1000_M88E1112_PAGE_ADDR, 0); + if (ret_val) + return ret_val; + + ret_val = phy->ops.read_reg(hw, E1000_M88E1112_STATUS, &data); + if (ret_val) + return ret_val; + + if (data & E1000_M88E1112_STATUS_LINK) + port = E1000_MEDIA_PORT_COPPER; + + /* Check the other medium. */ + ret_val = phy->ops.write_reg(hw, E1000_M88E1112_PAGE_ADDR, 1); + if (ret_val) + return ret_val; + + ret_val = phy->ops.read_reg(hw, E1000_M88E1112_STATUS, &data); + if (ret_val) + return ret_val; + + /* reset page to 0 */ + ret_val = phy->ops.write_reg(hw, E1000_M88E1112_PAGE_ADDR, 0); + if (ret_val) + return ret_val; + + if (data & E1000_M88E1112_STATUS_LINK) + port = E1000_MEDIA_PORT_OTHER; + + /* Determine if a swap needs to happen. */ + if (port && (hw->dev_spec._82575.media_port != port)) { + hw->dev_spec._82575.media_port = port; + hw->dev_spec._82575.media_changed = true; + } else { + ret_val = igb_check_for_link_82575(hw); + } + + return E1000_SUCCESS; +} + +/** * igb_init_phy_params_82575 - Init PHY func ptrs. * @hw: pointer to the HW structure **/ @@ -189,6 +242,29 @@ static s32 igb_init_phy_params_82575(struct e1000_hw *hw) else phy->ops.get_cable_length = igb_get_cable_length_m88; phy->ops.force_speed_duplex = igb_phy_force_speed_duplex_m88; + /* Check if this PHY is confgured for media swap. */ + if (phy->id == M88E1112_E_PHY_ID) { + u16 data; + + ret_val = phy->ops.write_reg(hw, + E1000_M88E1112_PAGE_ADDR, + 2); + if (ret_val) + goto out; + + ret_val = phy->ops.read_reg(hw, + E1000_M88E1112_MAC_CTRL_1, + &data); + if (ret_val) + goto out; + + data = (data & E1000_M88E1112_MAC_CTRL_1_MODE_MASK) >> + E1000_M88E1112_MAC_CTRL_1_MODE_SHIFT; + if (data == E1000_M88E1112_AUTO_COPPER_SGMII || + data == E1000_M88E1112_AUTO_COPPER_BASEX) + hw->mac.ops.check_for_link = + igb_check_for_link_media_swap; + } break; case IGP03E1000_E_PHY_ID: phy->type = e1000_phy_igp_3; diff --git a/drivers/net/ethernet/intel/igb/e1000_defines.h b/drivers/net/ethernet/intel/igb/e1000_defines.h index 978eca3..378ca21 100644 --- a/drivers/net/ethernet/intel/igb/e1000_defines.h +++ b/drivers/net/ethernet/intel/igb/e1000_defines.h @@ -532,6 +532,17 @@ #define E1000_MDICNFG_PHY_MASK 0x03E00000 #define E1000_MDICNFG_PHY_SHIFT 21 +#define E1000_MEDIA_PORT_COPPER 1 +#define E1000_MEDIA_PORT_OTHER 2 +#define E1000_M88E1112_AUTO_COPPER_SGMII 0x2 +#define E1000_M88E1112_AUTO_COPPER_BASEX 0x3 +#define E1000_M88E1112_STATUS_LINK 0x0004 /* Interface Link Bit */ +#define E1000_M88E1112_MAC_CTRL_1 0x10 +#define E1000_M88E1112_MAC_CTRL_1_MODE_MASK 0x0380 /* Mode Select */ +#define E1000_M88E1112_MAC_CTRL_1_MODE_SHIFT 7 +#define E1000_M88E1112_PAGE_ADDR 0x16 +#define E1000_M88E1112_STATUS 0x01 + /* PCI Express Control */ #define E1000_GCR_CMPL_TMOUT_MASK 0x0000F000 #define E1000_GCR_CMPL_TMOUT_10ms 0x00001000 diff --git a/drivers/net/ethernet/intel/igb/e1000_hw.h b/drivers/net/ethernet/intel/igb/e1000_hw.h index 2e166b2..5f9758f 100644 --- a/drivers/net/ethernet/intel/igb/e1000_hw.h +++ b/drivers/net/ethernet/intel/igb/e1000_hw.h @@ -533,6 +533,8 @@ struct e1000_dev_spec_82575 { bool clear_semaphore_once; struct e1000_sfp_flags eth_flags; bool module_plugged; + u8 media_port; + bool media_changed; }; struct e1000_hw { diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h index 5e9ed89..6c80792 100644 --- a/drivers/net/ethernet/intel/igb/igb.h +++ b/drivers/net/ethernet/intel/igb/igb.h @@ -462,6 +462,7 @@ struct igb_adapter { #define IGB_FLAG_RSS_FIELD_IPV6_UDP (1 << 7) #define IGB_FLAG_WOL_SUPPORTED (1 << 8) #define IGB_FLAG_NEED_LINK_UPDATE (1 << 9) +#define IGB_FLAG_MEDIA_RESET (1 << 10) /* DMA Coalescing defines */ #define IGB_MIN_TXPBSIZE 20408 diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 025e5f4..6da479b 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -3946,6 +3946,12 @@ static void igb_watchdog_task(struct work_struct *work) } if (link) { + /* Perform a reset if the media type changed. */ + if (hw->dev_spec._82575.media_changed) { + hw->dev_spec._82575.media_changed = false; + adapter->flags |= IGB_FLAG_MEDIA_RESET; + igb_reset(adapter); + } /* Cancel scheduled suspend requests. */ pm_runtime_resume(netdev->dev.parent); |