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Diffstat (limited to 'drivers/net/e1000e/82571.c')
| -rw-r--r-- | drivers/net/e1000e/82571.c | 2115 |
1 files changed, 0 insertions, 2115 deletions
diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c deleted file mode 100644 index 480f2592f8a..00000000000 --- a/drivers/net/e1000e/82571.c +++ /dev/null @@ -1,2115 +0,0 @@ -/******************************************************************************* - - Intel PRO/1000 Linux driver - Copyright(c) 1999 - 2011 Intel Corporation. - - This program is free software; you can redistribute it and/or modify it - under the terms and conditions of the GNU General Public License, - version 2, as published by the Free Software Foundation. - - This program is distributed in the hope it will be useful, but WITHOUT - ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - more details. - - You should have received a copy of the GNU General Public License along with - this program; if not, write to the Free Software Foundation, Inc., - 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - - The full GNU General Public License is included in this distribution in - the file called "COPYING". - - Contact Information: - Linux NICS <linux.nics@intel.com> - e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> - Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - -*******************************************************************************/ - -/* - * 82571EB Gigabit Ethernet Controller - * 82571EB Gigabit Ethernet Controller (Copper) - * 82571EB Gigabit Ethernet Controller (Fiber) - * 82571EB Dual Port Gigabit Mezzanine Adapter - * 82571EB Quad Port Gigabit Mezzanine Adapter - * 82571PT Gigabit PT Quad Port Server ExpressModule - * 82572EI Gigabit Ethernet Controller (Copper) - * 82572EI Gigabit Ethernet Controller (Fiber) - * 82572EI Gigabit Ethernet Controller - * 82573V Gigabit Ethernet Controller (Copper) - * 82573E Gigabit Ethernet Controller (Copper) - * 82573L Gigabit Ethernet Controller - * 82574L Gigabit Network Connection - * 82583V Gigabit Network Connection - */ - -#include "e1000.h" - -#define ID_LED_RESERVED_F746 0xF746 -#define ID_LED_DEFAULT_82573 ((ID_LED_DEF1_DEF2 << 12) | \ - (ID_LED_OFF1_ON2 << 8) | \ - (ID_LED_DEF1_DEF2 << 4) | \ - (ID_LED_DEF1_DEF2)) - -#define E1000_GCR_L1_ACT_WITHOUT_L0S_RX 0x08000000 -#define AN_RETRY_COUNT 5 /* Autoneg Retry Count value */ -#define E1000_BASE1000T_STATUS 10 -#define E1000_IDLE_ERROR_COUNT_MASK 0xFF -#define E1000_RECEIVE_ERROR_COUNTER 21 -#define E1000_RECEIVE_ERROR_MAX 0xFFFF - -#define E1000_NVM_INIT_CTRL2_MNGM 0x6000 /* Manageability Operation Mode mask */ - -static s32 e1000_get_phy_id_82571(struct e1000_hw *hw); -static s32 e1000_setup_copper_link_82571(struct e1000_hw *hw); -static s32 e1000_setup_fiber_serdes_link_82571(struct e1000_hw *hw); -static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw); -static s32 e1000_write_nvm_eewr_82571(struct e1000_hw *hw, u16 offset, - u16 words, u16 *data); -static s32 e1000_fix_nvm_checksum_82571(struct e1000_hw *hw); -static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw); -static s32 e1000_setup_link_82571(struct e1000_hw *hw); -static void e1000_clear_hw_cntrs_82571(struct e1000_hw *hw); -static void e1000_clear_vfta_82571(struct e1000_hw *hw); -static bool e1000_check_mng_mode_82574(struct e1000_hw *hw); -static s32 e1000_led_on_82574(struct e1000_hw *hw); -static void e1000_put_hw_semaphore_82571(struct e1000_hw *hw); -static void e1000_power_down_phy_copper_82571(struct e1000_hw *hw); -static void e1000_put_hw_semaphore_82573(struct e1000_hw *hw); -static s32 e1000_get_hw_semaphore_82574(struct e1000_hw *hw); -static void e1000_put_hw_semaphore_82574(struct e1000_hw *hw); -static s32 e1000_set_d0_lplu_state_82574(struct e1000_hw *hw, bool active); -static s32 e1000_set_d3_lplu_state_82574(struct e1000_hw *hw, bool active); - -/** - * e1000_init_phy_params_82571 - Init PHY func ptrs. - * @hw: pointer to the HW structure - **/ -static s32 e1000_init_phy_params_82571(struct e1000_hw *hw) -{ - struct e1000_phy_info *phy = &hw->phy; - s32 ret_val; - - if (hw->phy.media_type != e1000_media_type_copper) { - phy->type = e1000_phy_none; - return 0; - } - - phy->addr = 1; - phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT; - phy->reset_delay_us = 100; - - phy->ops.power_up = e1000_power_up_phy_copper; - phy->ops.power_down = e1000_power_down_phy_copper_82571; - - switch (hw->mac.type) { - case e1000_82571: - case e1000_82572: - phy->type = e1000_phy_igp_2; - break; - case e1000_82573: - phy->type = e1000_phy_m88; - break; - case e1000_82574: - case e1000_82583: - phy->type = e1000_phy_bm; - phy->ops.acquire = e1000_get_hw_semaphore_82574; - phy->ops.release = e1000_put_hw_semaphore_82574; - phy->ops.set_d0_lplu_state = e1000_set_d0_lplu_state_82574; - phy->ops.set_d3_lplu_state = e1000_set_d3_lplu_state_82574; - break; - default: - return -E1000_ERR_PHY; - break; - } - - /* This can only be done after all function pointers are setup. */ - ret_val = e1000_get_phy_id_82571(hw); - if (ret_val) { - e_dbg("Error getting PHY ID\n"); - return ret_val; - } - - /* Verify phy id */ - switch (hw->mac.type) { - case e1000_82571: - case e1000_82572: - if (phy->id != IGP01E1000_I_PHY_ID) - ret_val = -E1000_ERR_PHY; - break; - case e1000_82573: - if (phy->id != M88E1111_I_PHY_ID) - ret_val = -E1000_ERR_PHY; - break; - case e1000_82574: - case e1000_82583: - if (phy->id != BME1000_E_PHY_ID_R2) - ret_val = -E1000_ERR_PHY; - break; - default: - ret_val = -E1000_ERR_PHY; - break; - } - - if (ret_val) - e_dbg("PHY ID unknown: type = 0x%08x\n", phy->id); - - return ret_val; -} - -/** - * e1000_init_nvm_params_82571 - Init NVM func ptrs. - * @hw: pointer to the HW structure - **/ -static s32 e1000_init_nvm_params_82571(struct e1000_hw *hw) -{ - struct e1000_nvm_info *nvm = &hw->nvm; - u32 eecd = er32(EECD); - u16 size; - - nvm->opcode_bits = 8; - nvm->delay_usec = 1; - switch (nvm->override) { - case e1000_nvm_override_spi_large: - nvm->page_size = 32; - nvm->address_bits = 16; - break; - case e1000_nvm_override_spi_small: - nvm->page_size = 8; - nvm->address_bits = 8; - break; - default: - nvm->page_size = eecd & E1000_EECD_ADDR_BITS ? 32 : 8; - nvm->address_bits = eecd & E1000_EECD_ADDR_BITS ? 16 : 8; - break; - } - - switch (hw->mac.type) { - case e1000_82573: - case e1000_82574: - case e1000_82583: - if (((eecd >> 15) & 0x3) == 0x3) { - nvm->type = e1000_nvm_flash_hw; - nvm->word_size = 2048; - /* - * Autonomous Flash update bit must be cleared due - * to Flash update issue. - */ - eecd &= ~E1000_EECD_AUPDEN; - ew32(EECD, eecd); - break; - } - /* Fall Through */ - default: - nvm->type = e1000_nvm_eeprom_spi; - size = (u16)((eecd & E1000_EECD_SIZE_EX_MASK) >> - E1000_EECD_SIZE_EX_SHIFT); - /* - * Added to a constant, "size" becomes the left-shift value - * for setting word_size. - */ - size += NVM_WORD_SIZE_BASE_SHIFT; - - /* EEPROM access above 16k is unsupported */ - if (size > 14) - size = 14; - nvm->word_size = 1 << size; - break; - } - - /* Function Pointers */ - switch (hw->mac.type) { - case e1000_82574: - case e1000_82583: - nvm->ops.acquire = e1000_get_hw_semaphore_82574; - nvm->ops.release = e1000_put_hw_semaphore_82574; - break; - default: - break; - } - - return 0; -} - -/** - * e1000_init_mac_params_82571 - Init MAC func ptrs. - * @hw: pointer to the HW structure - **/ -static s32 e1000_init_mac_params_82571(struct e1000_adapter *adapter) -{ - struct e1000_hw *hw = &adapter->hw; - struct e1000_mac_info *mac = &hw->mac; - struct e1000_mac_operations *func = &mac->ops; - u32 swsm = 0; - u32 swsm2 = 0; - bool force_clear_smbi = false; - - /* Set media type */ - switch (adapter->pdev->device) { - case E1000_DEV_ID_82571EB_FIBER: - case E1000_DEV_ID_82572EI_FIBER: - case E1000_DEV_ID_82571EB_QUAD_FIBER: - hw->phy.media_type = e1000_media_type_fiber; - break; - case E1000_DEV_ID_82571EB_SERDES: - case E1000_DEV_ID_82572EI_SERDES: - case E1000_DEV_ID_82571EB_SERDES_DUAL: - case E1000_DEV_ID_82571EB_SERDES_QUAD: - hw->phy.media_type = e1000_media_type_internal_serdes; - break; - default: - hw->phy.media_type = e1000_media_type_copper; - break; - } - - /* Set mta register count */ - mac->mta_reg_count = 128; - /* Set rar entry count */ - mac->rar_entry_count = E1000_RAR_ENTRIES; - /* Adaptive IFS supported */ - mac->adaptive_ifs = true; - - /* check for link */ - switch (hw->phy.media_type) { - case e1000_media_type_copper: - func->setup_physical_interface = e1000_setup_copper_link_82571; - func->check_for_link = e1000e_check_for_copper_link; - func->get_link_up_info = e1000e_get_speed_and_duplex_copper; - break; - case e1000_media_type_fiber: - func->setup_physical_interface = - e1000_setup_fiber_serdes_link_82571; - func->check_for_link = e1000e_check_for_fiber_link; - func->get_link_up_info = - e1000e_get_speed_and_duplex_fiber_serdes; - break; - case e1000_media_type_internal_serdes: - func->setup_physical_interface = - e1000_setup_fiber_serdes_link_82571; - func->check_for_link = e1000_check_for_serdes_link_82571; - func->get_link_up_info = - e1000e_get_speed_and_duplex_fiber_serdes; - break; - default: - return -E1000_ERR_CONFIG; - break; - } - - switch (hw->mac.type) { - case e1000_82573: - func->set_lan_id = e1000_set_lan_id_single_port; - func->check_mng_mode = e1000e_check_mng_mode_generic; - func->led_on = e1000e_led_on_generic; - func->blink_led = e1000e_blink_led_generic; - - /* FWSM register */ - mac->has_fwsm = true; - /* - * ARC supported; valid only if manageability features are - * enabled. - */ - mac->arc_subsystem_valid = - (er32(FWSM) & E1000_FWSM_MODE_MASK) - ? true : false; - break; - case e1000_82574: - case e1000_82583: - func->set_lan_id = e1000_set_lan_id_single_port; - func->check_mng_mode = e1000_check_mng_mode_82574; - func->led_on = e1000_led_on_82574; - break; - default: - func->check_mng_mode = e1000e_check_mng_mode_generic; - func->led_on = e1000e_led_on_generic; - func->blink_led = e1000e_blink_led_generic; - - /* FWSM register */ - mac->has_fwsm = true; - break; - } - - /* - * Ensure that the inter-port SWSM.SMBI lock bit is clear before - * first NVM or PHY access. This should be done for single-port - * devices, and for one port only on dual-port devices so that - * for those devices we can still use the SMBI lock to synchronize - * inter-port accesses to the PHY & NVM. - */ - switch (hw->mac.type) { - case e1000_82571: - case e1000_82572: - swsm2 = er32(SWSM2); - - if (!(swsm2 & E1000_SWSM2_LOCK)) { - /* Only do this for the first interface on this card */ - ew32(SWSM2, - swsm2 | E1000_SWSM2_LOCK); - force_clear_smbi = true; - } else - force_clear_smbi = false; - break; - default: - force_clear_smbi = true; - break; - } - - if (force_clear_smbi) { - /* Make sure SWSM.SMBI is clear */ - swsm = er32(SWSM); - if (swsm & E1000_SWSM_SMBI) { - /* This bit should not be set on a first interface, and - * indicates that the bootagent or EFI code has - * improperly left this bit enabled - */ - e_dbg("Please update your 82571 Bootagent\n"); - } - ew32(SWSM, swsm & ~E1000_SWSM_SMBI); - } - - /* - * Initialize device specific counter of SMBI acquisition - * timeouts. - */ - hw->dev_spec.e82571.smb_counter = 0; - - return 0; -} - -static s32 e1000_get_variants_82571(struct e1000_adapter *adapter) -{ - struct e1000_hw *hw = &adapter->hw; - static int global_quad_port_a; /* global port a indication */ - struct pci_dev *pdev = adapter->pdev; - int is_port_b = er32(STATUS) & E1000_STATUS_FUNC_1; - s32 rc; - - rc = e1000_init_mac_params_82571(adapter); - if (rc) - return rc; - - rc = e1000_init_nvm_params_82571(hw); - if (rc) - return rc; - - rc = e1000_init_phy_params_82571(hw); - if (rc) - return rc; - - /* tag quad port adapters first, it's used below */ - switch (pdev->device) { - case E1000_DEV_ID_82571EB_QUAD_COPPER: - case E1000_DEV_ID_82571EB_QUAD_FIBER: - case E1000_DEV_ID_82571EB_QUAD_COPPER_LP: - case E1000_DEV_ID_82571PT_QUAD_COPPER: - adapter->flags |= FLAG_IS_QUAD_PORT; - /* mark the first port */ - if (global_quad_port_a == 0) - adapter->flags |= FLAG_IS_QUAD_PORT_A; - /* Reset for multiple quad port adapters */ - global_quad_port_a++; - if (global_quad_port_a == 4) - global_quad_port_a = 0; - break; - default: - break; - } - - switch (adapter->hw.mac.type) { - case e1000_82571: - /* these dual ports don't have WoL on port B at all */ - if (((pdev->device == E1000_DEV_ID_82571EB_FIBER) || - (pdev->device == E1000_DEV_ID_82571EB_SERDES) || - (pdev->device == E1000_DEV_ID_82571EB_COPPER)) && - (is_port_b)) - adapter->flags &= ~FLAG_HAS_WOL; - /* quad ports only support WoL on port A */ - if (adapter->flags & FLAG_IS_QUAD_PORT && - (!(adapter->flags & FLAG_IS_QUAD_PORT_A))) - adapter->flags &= ~FLAG_HAS_WOL; - /* Does not support WoL on any port */ - if (pdev->device == E1000_DEV_ID_82571EB_SERDES_QUAD) - adapter->flags &= ~FLAG_HAS_WOL; - break; - case e1000_82573: - if (pdev->device == E1000_DEV_ID_82573L) { - adapter->flags |= FLAG_HAS_JUMBO_FRAMES; - adapter->max_hw_frame_size = DEFAULT_JUMBO; - } - break; - default: - break; - } - - return 0; -} - -/** - * e1000_get_phy_id_82571 - Retrieve the PHY ID and revision - * @hw: pointer to the HW structure - * - * Reads the PHY registers and stores the PHY ID and possibly the PHY - * revision in the hardware structure. - **/ -static s32 e1000_get_phy_id_82571(struct e1000_hw *hw) -{ - struct e1000_phy_info *phy = &hw->phy; - s32 ret_val; - u16 phy_id = 0; - - switch (hw->mac.type) { - case e1000_82571: - case e1000_82572: - /* - * The 82571 firmware may still be configuring the PHY. - * In this case, we cannot access the PHY until the - * configuration is done. So we explicitly set the - * PHY ID. - */ - phy->id = IGP01E1000_I_PHY_ID; - break; - case e1000_82573: - return e1000e_get_phy_id(hw); - break; - case e1000_82574: - case e1000_82583: - ret_val = e1e_rphy(hw, PHY_ID1, &phy_id); - if (ret_val) - return ret_val; - - phy->id = (u32)(phy_id << 16); - udelay(20); - ret_val = e1e_rphy(hw, PHY_ID2, &phy_id); - if (ret_val) - return ret_val; - - phy->id |= (u32)(phy_id); - phy->revision = (u32)(phy_id & ~PHY_REVISION_MASK); - break; - default: - return -E1000_ERR_PHY; - break; - } - - return 0; -} - -/** - * e1000_get_hw_semaphore_82571 - Acquire hardware semaphore - * @hw: pointer to the HW structure - * - * Acquire the HW semaphore to access the PHY or NVM - **/ -static s32 e1000_get_hw_semaphore_82571(struct e1000_hw *hw) -{ - u32 swsm; - s32 sw_timeout = hw->nvm.word_size + 1; - s32 fw_timeout = hw->nvm.word_size + 1; - s32 i = 0; - - /* - * If we have timedout 3 times on trying to acquire - * the inter-port SMBI semaphore, there is old code - * operating on the other port, and it is not - * releasing SMBI. Modify the number of times that - * we try for the semaphore to interwork with this - * older code. - */ - if (hw->dev_spec.e82571.smb_counter > 2) - sw_timeout = 1; - - /* Get the SW semaphore */ - while (i < sw_timeout) { - swsm = er32(SWSM); - if (!(swsm & E1000_SWSM_SMBI)) - break; - - udelay(50); - i++; - } - - if (i == sw_timeout) { - e_dbg("Driver can't access device - SMBI bit is set.\n"); - hw->dev_spec.e82571.smb_counter++; - } - /* Get the FW semaphore. */ - for (i = 0; i < fw_timeout; i++) { - swsm = er32(SWSM); - ew32(SWSM, swsm | E1000_SWSM_SWESMBI); - - /* Semaphore acquired if bit latched */ - if (er32(SWSM) & E1000_SWSM_SWESMBI) - break; - - udelay(50); - } - - if (i == fw_timeout) { - /* Release semaphores */ - e1000_put_hw_semaphore_82571(hw); - e_dbg("Driver can't access the NVM\n"); - return -E1000_ERR_NVM; - } - - return 0; -} - -/** - * e1000_put_hw_semaphore_82571 - Release hardware semaphore - * @hw: pointer to the HW structure - * - * Release hardware semaphore used to access the PHY or NVM - **/ -static void e1000_put_hw_semaphore_82571(struct e1000_hw *hw) -{ - u32 swsm; - - swsm = er32(SWSM); - swsm &= ~(E1000_SWSM_SMBI | E1000_SWSM_SWESMBI); - ew32(SWSM, swsm); -} -/** - * e1000_get_hw_semaphore_82573 - Acquire hardware semaphore - * @hw: pointer to the HW structure - * - * Acquire the HW semaphore during reset. - * - **/ -static s32 e1000_get_hw_semaphore_82573(struct e1000_hw *hw) -{ - u32 extcnf_ctrl; - s32 ret_val = 0; - s32 i = 0; - - extcnf_ctrl = er32(EXTCNF_CTRL); - extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP; - do { - ew32(EXTCNF_CTRL, extcnf_ctrl); - extcnf_ctrl = er32(EXTCNF_CTRL); - - if (extcnf_ctrl & E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP) - break; - - extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP; - - usleep_range(2000, 4000); - i++; - } while (i < MDIO_OWNERSHIP_TIMEOUT); - - if (i == MDIO_OWNERSHIP_TIMEOUT) { - /* Release semaphores */ - e1000_put_hw_semaphore_82573(hw); - e_dbg("Driver can't access the PHY\n"); - ret_val = -E1000_ERR_PHY; - goto out; - } - -out: - return ret_val; -} - -/** - * e1000_put_hw_semaphore_82573 - Release hardware semaphore - * @hw: pointer to the HW structure - * - * Release hardware semaphore used during reset. - * - **/ -static void e1000_put_hw_semaphore_82573(struct e1000_hw *hw) -{ - u32 extcnf_ctrl; - - extcnf_ctrl = er32(EXTCNF_CTRL); - extcnf_ctrl &= ~E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP; - ew32(EXTCNF_CTRL, extcnf_ctrl); -} - -static DEFINE_MUTEX(swflag_mutex); - -/** - * e1000_get_hw_semaphore_82574 - Acquire hardware semaphore - * @hw: pointer to the HW structure - * - * Acquire the HW semaphore to access the PHY or NVM. - * - **/ -static s32 e1000_get_hw_semaphore_82574(struct e1000_hw *hw) -{ - s32 ret_val; - - mutex_lock(&swflag_mutex); - ret_val = e1000_get_hw_semaphore_82573(hw); - if (ret_val) - mutex_unlock(&swflag_mutex); - return ret_val; -} - -/** - * e1000_put_hw_semaphore_82574 - Release hardware semaphore - * @hw: pointer to the HW structure - * - * Release hardware semaphore used to access the PHY or NVM - * - **/ -static void e1000_put_hw_semaphore_82574(struct e1000_hw *hw) -{ - e1000_put_hw_semaphore_82573(hw); - mutex_unlock(&swflag_mutex); -} - -/** - * e1000_set_d0_lplu_state_82574 - Set Low Power Linkup D0 state - * @hw: pointer to the HW structure - * @active: true to enable LPLU, false to disable - * - * Sets the LPLU D0 state according to the active flag. - * LPLU will not be activated unless the - * device autonegotiation advertisement meets standards of - * either 10 or 10/100 or 10/100/1000 at all duplexes. - * This is a function pointer entry point only called by - * PHY setup routines. - **/ -static s32 e1000_set_d0_lplu_state_82574(struct e1000_hw *hw, bool active) -{ - u16 data = er32(POEMB); - - if (active) - data |= E1000_PHY_CTRL_D0A_LPLU; - else - data &= ~E1000_PHY_CTRL_D0A_LPLU; - - ew32(POEMB, data); - return 0; -} - -/** - * e1000_set_d3_lplu_state_82574 - Sets low power link up state for D3 - * @hw: pointer to the HW structure - * @active: boolean used to enable/disable lplu - * - * The low power link up (lplu) state is set to the power management level D3 - * when active is true, else clear lplu for D3. LPLU - * is used during Dx states where the power conservation is most important. - * During driver activity, SmartSpeed should be enabled so performance is - * maintained. - **/ -static s32 e1000_set_d3_lplu_state_82574(struct e1000_hw *hw, bool active) -{ - u16 data = er32(POEMB); - - if (!active) { - data &= ~E1000_PHY_CTRL_NOND0A_LPLU; - } else if ((hw->phy.autoneg_advertised == E1000_ALL_SPEED_DUPLEX) || - (hw->phy.autoneg_advertised == E1000_ALL_NOT_GIG) || - (hw->phy.autoneg_advertised == E1000_ALL_10_SPEED)) { - data |= E1000_PHY_CTRL_NOND0A_LPLU; - } - - ew32(POEMB, data); - return 0; -} - -/** - * e1000_acquire_nvm_82571 - Request for access to the EEPROM - * @hw: pointer to the HW structure - * - * To gain access to the EEPROM, first we must obtain a hardware semaphore. - * Then for non-82573 hardware, set the EEPROM access request bit and wait - * for EEPROM access grant bit. If the access grant bit is not set, release - * hardware semaphore. - **/ -static s32 e1000_acquire_nvm_82571(struct e1000_hw *hw) -{ - s32 ret_val; - - ret_val = e1000_get_hw_semaphore_82571(hw); - if (ret_val) - return ret_val; - - switch (hw->mac.type) { - case e1000_82573: - break; - default: - ret_val = e1000e_acquire_nvm(hw); - break; - } - - if (ret_val) - e1000_put_hw_semaphore_82571(hw); - - return ret_val; -} - -/** - * e1000_release_nvm_82571 - Release exclusive access to EEPROM - * @hw: pointer to the HW structure - * - * Stop any current commands to the EEPROM and clear the EEPROM request bit. - **/ -static void e1000_release_nvm_82571(struct e1000_hw *hw) -{ - e1000e_release_nvm(hw); - e1000_put_hw_semaphore_82571(hw); -} - -/** - * e1000_write_nvm_82571 - Write to EEPROM using appropriate interface - * @hw: pointer to the HW structure - * @offset: offset within the EEPROM to be written to - * @words: number of words to write - * @data: 16 bit word(s) to be written to the EEPROM - * - * For non-82573 silicon, write data to EEPROM at offset using SPI interface. - * - * If e1000e_update_nvm_checksum is not called after this function, the - * EEPROM will most likely contain an invalid checksum. - **/ -static s32 e1000_write_nvm_82571(struct e1000_hw *hw, u16 offset, u16 words, - u16 *data) -{ - s32 ret_val; - - switch (hw->mac.type) { - case e1000_82573: - case e1000_82574: - case e1000_82583: - ret_val = e1000_write_nvm_eewr_82571(hw, offset, words, data); - break; - case e1000_82571: - case e1000_82572: - ret_val = e1000e_write_nvm_spi(hw, offset, words, data); - break; - default: - ret_val = -E1000_ERR_NVM; - break; - } - - return ret_val; -} - -/** - * e1000_update_nvm_checksum_82571 - Update EEPROM checksum - * @hw: pointer to the HW structure - * - * Updates the EEPROM checksum by reading/adding each word of the EEPROM - * up to the checksum. Then calculates the EEPROM checksum and writes the - * value to the EEPROM. - **/ -static s32 e1000_update_nvm_checksum_82571(struct e1000_hw *hw) -{ - u32 eecd; - s32 ret_val; - u16 i; - - ret_val = e1000e_update_nvm_checksum_generic(hw); - if (ret_val) - return ret_val; - - /* - * If our nvm is an EEPROM, then we're done - * otherwise, commit the checksum to the flash NVM. - */ - if (hw->nvm.type != e1000_nvm_flash_hw) - return ret_val; - - /* Check for pending operations. */ - for (i = 0; i < E1000_FLASH_UPDATES; i++) { - usleep_range(1000, 2000); - if ((er32(EECD) & E1000_EECD_FLUPD) == 0) - break; - } - - if (i == E1000_FLASH_UPDATES) - return -E1000_ERR_NVM; - - /* Reset the firmware if using STM opcode. */ - if ((er32(FLOP) & 0xFF00) == E1000_STM_OPCODE) { - /* - * The enabling of and the actual reset must be done - * in two write cycles. - */ - ew32(HICR, E1000_HICR_FW_RESET_ENABLE); - e1e_flush(); - ew32(HICR, E1000_HICR_FW_RESET); - } - - /* Commit the write to flash */ - eecd = er32(EECD) | E1000_EECD_FLUPD; - ew32(EECD, eecd); - - for (i = 0; i < E1000_FLASH_UPDATES; i++) { - usleep_range(1000, 2000); - if ((er32(EECD) & E1000_EECD_FLUPD) == 0) - break; - } - - if (i == E1000_FLASH_UPDATES) - return -E1000_ERR_NVM; - - return 0; -} - -/** - * e1000_validate_nvm_checksum_82571 - Validate EEPROM checksum - * @hw: pointer to the HW structure - * - * Calculates the EEPROM checksum by reading/adding each word of the EEPROM - * and then verifies that the sum of the EEPROM is equal to 0xBABA. - **/ -static s32 e1000_validate_nvm_checksum_82571(struct e1000_hw *hw) -{ - if (hw->nvm.type == e1000_nvm_flash_hw) - e1000_fix_nvm_checksum_82571(hw); - - return e1000e_validate_nvm_checksum_generic(hw); -} - -/** - * e1000_write_nvm_eewr_82571 - Write to EEPROM for 82573 silicon - * @hw: pointer to the HW structure - * @offset: offset within the EEPROM to be written to - * @words: number of words to write - * @data: 16 bit word(s) to be written to the EEPROM - * - * After checking for invalid values, poll the EEPROM to ensure the previous - * command has completed before trying to write the next word. After write - * poll for completion. - * - * If e1000e_update_nvm_checksum is not called after this function, the - * EEPROM will most likely contain an invalid checksum. - **/ -static s32 e1000_write_nvm_eewr_82571(struct e1000_hw *hw, u16 offset, - u16 words, u16 *data) -{ - struct e1000_nvm_info *nvm = &hw->nvm; - u32 i, eewr = 0; - s32 ret_val = 0; - - /* - * A check for invalid values: offset too large, too many words, - * and not enough words. - */ - if ((offset >= nvm->word_size) || (words > (nvm->word_size - offset)) || - (words == 0)) { - e_dbg("nvm parameter(s) out of bounds\n"); - return -E1000_ERR_NVM; - } - - for (i = 0; i < words; i++) { - eewr = (data[i] << E1000_NVM_RW_REG_DATA) | - ((offset+i) << E1000_NVM_RW_ADDR_SHIFT) | - E1000_NVM_RW_REG_START; - - ret_val = e1000e_poll_eerd_eewr_done(hw, E1000_NVM_POLL_WRITE); - if (ret_val) - break; - - ew32(EEWR, eewr); - - ret_val = e1000e_poll_eerd_eewr_done(hw, E1000_NVM_POLL_WRITE); - if (ret_val) - break; - } - - return ret_val; -} - -/** - * e1000_get_cfg_done_82571 - Poll for configuration done - * @hw: pointer to the HW structure - * - * Reads the management control register for the config done bit to be set. - **/ -static s32 e1000_get_cfg_done_82571(struct e1000_hw *hw) -{ - s32 timeout = PHY_CFG_TIMEOUT; - - while (timeout) { - if (er32(EEMNGCTL) & - E1000_NVM_CFG_DONE_PORT_0) - break; - usleep_range(1000, 2000); - timeout--; - } - if (!timeout) { - e_dbg("MNG configuration cycle has not completed.\n"); - return -E1000_ERR_RESET; - } - - return 0; -} - -/** - * e1000_set_d0_lplu_state_82571 - Set Low Power Linkup D0 state - * @hw: pointer to the HW structure - * @active: true to enable LPLU, false to disable - * - * Sets the LPLU D0 state according to the active flag. When activating LPLU - * this function also disables smart speed and vice versa. LPLU will not be - * activated unless the device autonegotiation advertisement meets standards - * of either 10 or 10/100 or 10/100/1000 at all duplexes. This is a function - * pointer entry point only called by PHY setup routines. - **/ -static s32 e1000_set_d0_lplu_state_82571(struct e1000_hw *hw, bool active) -{ - struct e1000_phy_info *phy = &hw->phy; - s32 ret_val; - u16 data; - - ret_val = e1e_rphy(hw, IGP02E1000_PHY_POWER_MGMT, &data); - if (ret_val) - return ret_val; - - if (active) { - data |= IGP02E1000_PM_D0_LPLU; - ret_val = e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, data); - if (ret_val) - return ret_val; - - /* When LPLU is enabled, we should disable SmartSpeed */ - ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data); - data &= ~IGP01E1000_PSCFR_SMART_SPEED; - ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data); - if (ret_val) - return ret_val; - } else { - data &= ~IGP02E1000_PM_D0_LPLU; - ret_val = e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, data); - /* - * LPLU and SmartSpeed are mutually exclusive. LPLU is used - * during Dx states where the power conservation is most - * important. During driver activity we should enable - * SmartSpeed, so performance is maintained. - */ - if (phy->smart_speed == e1000_smart_speed_on) { - ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, - &data); - if (ret_val) - return ret_val; - - data |= IGP01E1000_PSCFR_SMART_SPEED; - ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, - data); - if (ret_val) - return ret_val; - } else if (phy->smart_speed == e1000_smart_speed_off) { - ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, - &data); - if (ret_val) - return ret_val; - - data &= ~IGP01E1000_PSCFR_SMART_SPEED; - ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, - data); - if (ret_val) - return ret_val; - } - } - - return 0; -} - -/** - * e1000_reset_hw_82571 - Reset hardware - * @hw: pointer to the HW structure - * - * This resets the hardware into a known state. - **/ -static s32 e1000_reset_hw_82571(struct e1000_hw *hw) -{ - u32 ctrl, ctrl_ext; - s32 ret_val; - - /* - * Prevent the PCI-E bus from sticking if there is no TLP connection - * on the last TLP read/write transaction when MAC is reset. - */ - ret_val = e1000e_disable_pcie_master(hw); - if (ret_val) - e_dbg("PCI-E Master disable polling has failed.\n"); - - e_dbg("Masking off all interrupts\n"); - ew32(IMC, 0xffffffff); - - ew32(RCTL, 0); - ew32(TCTL, E1000_TCTL_PSP); - e1e_flush(); - - usleep_range(10000, 20000); - - /* - * Must acquire the MDIO ownership before MAC reset. - * Ownership defaults to firmware after a reset. - */ - switch (hw->mac.type) { - case e1000_82573: - ret_val = e1000_get_hw_semaphore_82573(hw); - break; - case e1000_82574: - case e1000_82583: - ret_val = e1000_get_hw_semaphore_82574(hw); - break; - default: - break; - } - if (ret_val) - e_dbg("Cannot acquire MDIO ownership\n"); - - ctrl = er32(CTRL); - - e_dbg("Issuing a global reset to MAC\n"); - ew32(CTRL, ctrl | E1000_CTRL_RST); - - /* Must release MDIO ownership and mutex after MAC reset. */ - switch (hw->mac.type) { - case e1000_82574: - case e1000_82583: - e1000_put_hw_semaphore_82574(hw); - break; - default: - break; - } - - if (hw->nvm.type == e1000_nvm_flash_hw) { - udelay(10); - ctrl_ext = er32(CTRL_EXT); - ctrl_ext |= E1000_CTRL_EXT_EE_RST; - ew32(CTRL_EXT, ctrl_ext); - e1e_flush(); - } - - ret_val = e1000e_get_auto_rd_done(hw); - if (ret_val) - /* We don't want to continue accessing MAC registers. */ - return ret_val; - - /* - * Phy configuration from NVM just starts after EECD_AUTO_RD is set. - * Need to wait for Phy configuration completion before accessing - * NVM and Phy. - */ - - switch (hw->mac.type) { - case e1000_82573: - case e1000_82574: - case e1000_82583: - msleep(25); - break; - default: - break; - } - - /* Clear any pending interrupt events. */ - ew32(IMC, 0xffffffff); - er32(ICR); - - if (hw->mac.type == e1000_82571) { - /* Install any alternate MAC address into RAR0 */ - ret_val = e1000_check_alt_mac_addr_generic(hw); - if (ret_val) - return ret_val; - - e1000e_set_laa_state_82571(hw, true); - } - - /* Reinitialize the 82571 serdes link state machine */ - if (hw->phy.media_type == e1000_media_type_internal_serdes) - hw->mac.serdes_link_state = e1000_serdes_link_down; - - return 0; -} - -/** - * e1000_init_hw_82571 - Initialize hardware - * @hw: pointer to the HW structure - * - * This inits the hardware readying it for operation. - **/ -static s32 e1000_init_hw_82571(struct e1000_hw *hw) -{ - struct e1000_mac_info *mac = &hw->mac; - u32 reg_data; - s32 ret_val; - u16 i, rar_count = mac->rar_entry_count; - - e1000_initialize_hw_bits_82571(hw); - - /* Initialize identification LED */ - ret_val = e1000e_id_led_init(hw); - if (ret_val) - e_dbg("Error initializing identification LED\n"); - /* This is not fatal and we should not stop init due to this */ - - /* Disabling VLAN filtering */ - e_dbg("Initializing the IEEE VLAN\n"); - mac->ops.clear_vfta(hw); - - /* Setup the receive address. */ - /* - * If, however, a locally administered address was assigned to the - * 82571, we must reserve a RAR for it to work around an issue where - * resetting one port will reload the MAC on the other port. - */ - if (e1000e_get_laa_state_82571(hw)) - rar_count--; - e1000e_init_rx_addrs(hw, rar_count); - - /* Zero out the Multicast HASH table */ - e_dbg("Zeroing the MTA\n"); - for (i = 0; i < mac->mta_reg_count; i++) - E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0); - - /* Setup link and flow control */ - ret_val = e1000_setup_link_82571(hw); - - /* Set the transmit descriptor write-back policy */ - reg_data = er32(TXDCTL(0)); - reg_data = (reg_data & ~E1000_TXDCTL_WTHRESH) | - E1000_TXDCTL_FULL_TX_DESC_WB | - E1000_TXDCTL_COUNT_DESC; - ew32(TXDCTL(0), reg_data); - - /* ...for both queues. */ - switch (mac->type) { - case e1000_82573: - e1000e_enable_tx_pkt_filtering(hw); - /* fall through */ - case e1000_82574: - case e1000_82583: - reg_data = er32(GCR); - reg_data |= E1000_GCR_L1_ACT_WITHOUT_L0S_RX; - ew32(GCR, reg_data); - break; - default: - reg_data = er32(TXDCTL(1)); - reg_data = (reg_data & ~E1000_TXDCTL_WTHRESH) | - E1000_TXDCTL_FULL_TX_DESC_WB | - E1000_TXDCTL_COUNT_DESC; - ew32(TXDCTL(1), reg_data); - break; - } - - /* - * Clear all of the statistics registers (clear on read). It is - * important that we do this after we have tried to establish link - * because the symbol error count will increment wildly if there - * is no link. - */ - e1000_clear_hw_cntrs_82571(hw); - - return ret_val; -} - -/** - * e1000_initialize_hw_bits_82571 - Initialize hardware-dependent bits - * @hw: pointer to the HW structure - * - * Initializes required hardware-dependent bits needed for normal operation. - **/ -static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw) -{ - u32 reg; - - /* Transmit Descriptor Control 0 */ - reg = er32(TXDCTL(0)); - reg |= (1 << 22); - ew32(TXDCTL(0), reg); - - /* Transmit Descriptor Control 1 */ - reg = er32(TXDCTL(1)); - reg |= (1 << 22); - ew32(TXDCTL(1), reg); - - /* Transmit Arbitration Control 0 */ - reg = er32(TARC(0)); - reg &= ~(0xF << 27); /* 30:27 */ - switch (hw->mac.type) { - case e1000_82571: - case e1000_82572: - reg |= (1 << 23) | (1 << 24) | (1 << 25) | (1 << 26); - break; - default: - break; - } - ew32(TARC(0), reg); - - /* Transmit Arbitration Control 1 */ - reg = er32(TARC(1)); - switch (hw->mac.type) { - case e1000_82571: - case e1000_82572: - reg &= ~((1 << 29) | (1 << 30)); - reg |= (1 << 22) | (1 << 24) | (1 << 25) | (1 << 26); - if (er32(TCTL) & E1000_TCTL_MULR) - reg &= ~(1 << 28); - else - reg |= (1 << 28); - ew32(TARC(1), reg); - break; - default: - break; - } - - /* Device Control */ - switch (hw->mac.type) { - case e1000_82573: - case e1000_82574: - case e1000_82583: - reg = er32(CTRL); - reg &= ~(1 << 29); - ew32(CTRL, reg); - break; - default: - break; - } - - /* Extended Device Control */ - switch (hw->mac.type) { - case e1000_82573: - case e1000_82574: - case e1000_82583: - reg = er32(CTRL_EXT); - reg &= ~(1 << 23); - reg |= (1 << 22); - ew32(CTRL_EXT, reg); - break; - default: - break; - } - - if (hw->mac.type == e1000_82571) { - reg = er32(PBA_ECC); - reg |= E1000_PBA_ECC_CORR_EN; - ew32(PBA_ECC, reg); - } - /* - * Workaround for hardware errata. - * Ensure that DMA Dynamic Clock gating is disabled on 82571 and 82572 - */ - - if ((hw->mac.type == e1000_82571) || - (hw->mac.type == e1000_82572)) { - reg = er32(CTRL_EXT); - reg &= ~E1000_CTRL_EXT_DMA_DYN_CLK_EN; - ew32(CTRL_EXT, reg); - } - - - /* PCI-Ex Control Registers */ - switch (hw->mac.type) { - case e1000_82574: - case e1000_82583: - reg = er32(GCR); - reg |= (1 << 22); - ew32(GCR, reg); - - /* - * Workaround for hardware errata. - * apply workaround for hardware errata documented in errata - * docs Fixes issue where some error prone or unreliable PCIe - * completions are occurring, particularly with ASPM enabled. - * Without fix, issue can cause Tx timeouts. - */ - reg = er32(GCR2); - reg |= 1; - ew32(GCR2, reg); - break; - default: - break; - } -} - -/** - * e1000_clear_vfta_82571 - Clear VLAN filter table - * @hw: pointer to the HW structure - * - * Clears the register array which contains the VLAN filter table by - * setting all the values to 0. - **/ -static void e1000_clear_vfta_82571(struct e1000_hw *hw) -{ - u32 offset; - u32 vfta_value = 0; - u32 vfta_offset = 0; - u32 vfta_bit_in_reg = 0; - - switch (hw->mac.type) { - case e1000_82573: - case e1000_82574: - case e1000_82583: - if (hw->mng_cookie.vlan_id != 0) { - /* - * The VFTA is a 4096b bit-field, each identifying - * a single VLAN ID. The following operations - * determine which 32b entry (i.e. offset) into the - * array we want to set the VLAN ID (i.e. bit) of - * the manageability unit. - */ - vfta_offset = (hw->mng_cookie.vlan_id >> - E1000_VFTA_ENTRY_SHIFT) & - E1000_VFTA_ENTRY_MASK; - vfta_bit_in_reg = 1 << (hw->mng_cookie.vlan_id & - E1000_VFTA_ENTRY_BIT_SHIFT_MASK); - } - break; - default: - break; - } - for (offset = 0; offset < E1000_VLAN_FILTER_TBL_SIZE; offset++) { - /* - * If the offset we want to clear is the same offset of the - * manageability VLAN ID, then clear all bits except that of - * the manageability unit. - */ - vfta_value = (offset == vfta_offset) ? vfta_bit_in_reg : 0; - E1000_WRITE_REG_ARRAY(hw, E1000_VFTA, offset, vfta_value); - e1e_flush(); - } -} - -/** - * e1000_check_mng_mode_82574 - Check manageability is enabled - * @hw: pointer to the HW structure - * - * Reads the NVM Initialization Control Word 2 and returns true - * (>0) if any manageability is enabled, else false (0). - **/ -static bool e1000_check_mng_mode_82574(struct e1000_hw *hw) -{ - u16 data; - - e1000_read_nvm(hw, NVM_INIT_CONTROL2_REG, 1, &data); - return (data & E1000_NVM_INIT_CTRL2_MNGM) != 0; -} - -/** - * e1000_led_on_82574 - Turn LED on - * @hw: pointer to the HW structure - * - * Turn LED on. - **/ -static s32 e1000_led_on_82574(struct e1000_hw *hw) -{ - u32 ctrl; - u32 i; - - ctrl = hw->mac.ledctl_mode2; - if (!(E1000_STATUS_LU & er32(STATUS))) { - /* - * If no link, then turn LED on by setting the invert bit - * for each LED that's "on" (0x0E) in ledctl_mode2. - */ - for (i = 0; i < 4; i++) - if (((hw->mac.ledctl_mode2 >> (i * 8)) & 0xFF) == - E1000_LEDCTL_MODE_LED_ON) - ctrl |= (E1000_LEDCTL_LED0_IVRT << (i * 8)); - } - ew32(LEDCTL, ctrl); - - return 0; -} - -/** - * e1000_check_phy_82574 - check 82574 phy hung state - * @hw: pointer to the HW structure - * - * Returns whether phy is hung or not - **/ -bool e1000_check_phy_82574(struct e1000_hw *hw) -{ - u16 status_1kbt = 0; - u16 receive_errors = 0; - bool phy_hung = false; - s32 ret_val = 0; - - /* - * Read PHY Receive Error counter first, if its is max - all F's then - * read the Base1000T status register If both are max then PHY is hung. - */ - ret_val = e1e_rphy(hw, E1000_RECEIVE_ERROR_COUNTER, &receive_errors); - - if (ret_val) - goto out; - if (receive_errors == E1000_RECEIVE_ERROR_MAX) { - ret_val = e1e_rphy(hw, E1000_BASE1000T_STATUS, &status_1kbt); - if (ret_val) - goto out; - if ((status_1kbt & E1000_IDLE_ERROR_COUNT_MASK) == - E1000_IDLE_ERROR_COUNT_MASK) - phy_hung = true; - } -out: - return phy_hung; -} - -/** - * e1000_setup_link_82571 - Setup flow control and link settings - * @hw: pointer to the HW structure - * - * Determines which flow control settings to use, then configures flow - * control. Calls the appropriate media-specific link configuration - * function. Assuming the adapter has a valid link partner, a valid link - * should be established. Assumes the hardware has previously been reset - * and the transmitter and receiver are not enabled. - **/ -static s32 e1000_setup_link_82571(struct e1000_hw *hw) -{ - /* - * 82573 does not have a word in the NVM to determine - * the default flow control setting, so we explicitly - * set it to full. - */ - switch (hw->mac.type) { - case e1000_82573: - case e1000_82574: - case e1000_82583: - if (hw->fc.requested_mode == e1000_fc_default) - hw->fc.requested_mode = e1000_fc_full; - break; - default: - break; - } - - return e1000e_setup_link(hw); -} - -/** - * e1000_setup_copper_link_82571 - Configure copper link settings - * @hw: pointer to the HW structure - * - * Configures the link for auto-neg or forced speed and duplex. Then we check - * for link, once link is established calls to configure collision distance - * and flow control are called. - **/ -static s32 e1000_setup_copper_link_82571(struct e1000_hw *hw) -{ - u32 ctrl; - s32 ret_val; - - ctrl = er32(CTRL); - ctrl |= E1000_CTRL_SLU; - ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); - ew32(CTRL, ctrl); - - switch (hw->phy.type) { - case e1000_phy_m88: - case e1000_phy_bm: - ret_val = e1000e_copper_link_setup_m88(hw); - break; - case e1000_phy_igp_2: - ret_val = e1000e_copper_link_setup_igp(hw); - break; - default: - return -E1000_ERR_PHY; - break; - } - - if (ret_val) - return ret_val; - - ret_val = e1000e_setup_copper_link(hw); - - return ret_val; -} - -/** - * e1000_setup_fiber_serdes_link_82571 - Setup link for fiber/serdes - * @hw: pointer to the HW structure - * - * Configures collision distance and flow control for fiber and serdes links. - * Upon successful setup, poll for link. - **/ -static s32 e1000_setup_fiber_serdes_link_82571(struct e1000_hw *hw) -{ - switch (hw->mac.type) { - case e1000_82571: - case e1000_82572: - /* - * If SerDes loopback mode is entered, there is no form - * of reset to take the adapter out of that mode. So we - * have to explicitly take the adapter out of loopback - * mode. This prevents drivers from twiddling their thumbs - * if another tool failed to take it out of loopback mode. - */ - ew32(SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK); - break; - default: - break; - } - - return e1000e_setup_fiber_serdes_link(hw); -} - -/** - * e1000_check_for_serdes_link_82571 - Check for link (Serdes) - * @hw: pointer to the HW structure - * - * Reports the link state as up or down. - * - * If autonegotiation is supported by the link partner, the link state is - * determined by the result of autonegotiation. This is the most likely case. - * If autonegotiation is not supported by the link partner, and the link - * has a valid signal, force the link up. - * - * The link state is represented internally here by 4 states: - * - * 1) down - * 2) autoneg_progress - * 3) autoneg_complete (the link successfully autonegotiated) - * 4) forced_up (the link has been forced up, it did not autonegotiate) - * - **/ -static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw) -{ - struct e1000_mac_info *mac = &hw->mac; - u32 rxcw; - u32 ctrl; - u32 status; - u32 txcw; - u32 i; - s32 ret_val = 0; - - ctrl = er32(CTRL); - status = er32(STATUS); - rxcw = er32(RXCW); - - if ((rxcw & E1000_RXCW_SYNCH) && !(rxcw & E1000_RXCW_IV)) { - - /* Receiver is synchronized with no invalid bits. */ - switch (mac->serdes_link_state) { - case e1000_serdes_link_autoneg_complete: - if (!(status & E1000_STATUS_LU)) { - /* - * We have lost link, retry autoneg before - * reporting link failure - */ - mac->serdes_link_state = - e1000_serdes_link_autoneg_progress; - mac->serdes_has_link = false; - e_dbg("AN_UP -> AN_PROG\n"); - } else { - mac->serdes_has_link = true; - } - break; - - case e1000_serdes_link_forced_up: - /* - * If we are receiving /C/ ordered sets, re-enable - * auto-negotiation in the TXCW register and disable - * forced link in the Device Control register in an - * attempt to auto-negotiate with our link partner. - * If the partner code word is null, stop forcing - * and restart auto negotiation. - */ - if ((rxcw & E1000_RXCW_C) || !(rxcw & E1000_RXCW_CW)) { - /* Enable autoneg, and unforce link up */ - ew32(TXCW, mac->txcw); - ew32(CTRL, (ctrl & ~E1000_CTRL_SLU)); - mac->serdes_link_state = - e1000_serdes_link_autoneg_progress; - mac->serdes_has_link = false; - e_dbg("FORCED_UP -> AN_PROG\n"); - } else { - mac->serdes_has_link = true; - } - break; - - case e1000_serdes_link_autoneg_progress: - if (rxcw & E1000_RXCW_C) { - /* - * We received /C/ ordered sets, meaning the - * link partner has autonegotiated, and we can - * trust the Link Up (LU) status bit. - */ - if (status & E1000_STATUS_LU) { - mac->serdes_link_state = - e1000_serdes_link_autoneg_complete; - e_dbg("AN_PROG -> AN_UP\n"); - mac->serdes_has_link = true; - } else { - /* Autoneg completed, but failed. */ - mac->serdes_link_state = - e1000_serdes_link_down; - e_dbg("AN_PROG -> DOWN\n"); - } - } else { - /* - * The link partner did not autoneg. - * Force link up and full duplex, and change - * state to forced. - */ - ew32(TXCW, (mac->txcw & ~E1000_TXCW_ANE)); - ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FD); - ew32(CTRL, ctrl); - - /* Configure Flow Control after link up. */ - ret_val = e1000e_config_fc_after_link_up(hw); - if (ret_val) { - e_dbg("Error config flow control\n"); - break; - } - mac->serdes_link_state = - e1000_serdes_link_forced_up; - mac->serdes_has_link = true; - e_dbg("AN_PROG -> FORCED_UP\n"); - } - break; - - case e1000_serdes_link_down: - default: - /* - * The link was down but the receiver has now gained - * valid sync, so lets see if we can bring the link - * up. - */ - ew32(TXCW, mac->txcw); - ew32(CTRL, (ctrl & ~E1000_CTRL_SLU)); - mac->serdes_link_state = - e1000_serdes_link_autoneg_progress; - mac->serdes_has_link = false; - e_dbg("DOWN -> AN_PROG\n"); - break; - } - } else { - if (!(rxcw & E1000_RXCW_SYNCH)) { - mac->serdes_has_link = false; - mac->serdes_link_state = e1000_serdes_link_down; - e_dbg("ANYSTATE -> DOWN\n"); - } else { - /* - * Check several times, if Sync and Config - * both are consistently 1 then simply ignore - * the Invalid bit and restart Autoneg - */ - for (i = 0; i < AN_RETRY_COUNT; i++) { - udelay(10); - rxcw = er32(RXCW); - if ((rxcw & E1000_RXCW_IV) && - !((rxcw & E1000_RXCW_SYNCH) && - (rxcw & E1000_RXCW_C))) { - mac->serdes_has_link = false; - mac->serdes_link_state = - e1000_serdes_link_down; - e_dbg("ANYSTATE -> DOWN\n"); - break; - } - } - - if (i == AN_RETRY_COUNT) { - txcw = er32(TXCW); - txcw |= E1000_TXCW_ANE; - ew32(TXCW, txcw); - mac->serdes_link_state = - e1000_serdes_link_autoneg_progress; - mac->serdes_has_link = false; - e_dbg("ANYSTATE -> AN_PROG\n"); - } - } - } - - return ret_val; -} - -/** - * e1000_valid_led_default_82571 - Verify a valid default LED config - * @hw: pointer to the HW structure - * @data: pointer to the NVM (EEPROM) - * - * Read the EEPROM for the current default LED configuration. If the - * LED configuration is not valid, set to a valid LED configuration. - **/ -static s32 e1000_valid_led_default_82571(struct e1000_hw *hw, u16 *data) -{ - s32 ret_val; - - ret_val = e1000_read_nvm(hw, NVM_ID_LED_SETTINGS, 1, data); - if (ret_val) { - e_dbg("NVM Read Error\n"); - return ret_val; - } - - switch (hw->mac.type) { - case e1000_82573: - case e1000_82574: - case e1000_82583: - if (*data == ID_LED_RESERVED_F746) - *data = ID_LED_DEFAULT_82573; - break; - default: - if (*data == ID_LED_RESERVED_0000 || - *data == ID_LED_RESERVED_FFFF) - *data = ID_LED_DEFAULT; - break; - } - - return 0; -} - -/** - * e1000e_get_laa_state_82571 - Get locally administered address state - * @hw: pointer to the HW structure - * - * Retrieve and return the current locally administered address state. - **/ -bool e1000e_get_laa_state_82571(struct e1000_hw *hw) -{ - if (hw->mac.type != e1000_82571) - return false; - - return hw->dev_spec.e82571.laa_is_present; -} - -/** - * e1000e_set_laa_state_82571 - Set locally administered address state - * @hw: pointer to the HW structure - * @state: enable/disable locally administered address - * - * Enable/Disable the current locally administered address state. - **/ -void e1000e_set_laa_state_82571(struct e1000_hw *hw, bool state) -{ - if (hw->mac.type != e1000_82571) - return; - - hw->dev_spec.e82571.laa_is_present = state; - - /* If workaround is activated... */ - if (state) - /* - * Hold a copy of the LAA in RAR[14] This is done so that - * between the time RAR[0] gets clobbered and the time it - * gets fixed, the actual LAA is in one of the RARs and no - * incoming packets directed to this port are dropped. - * Eventually the LAA will be in RAR[0] and RAR[14]. - */ - e1000e_rar_set(hw, hw->mac.addr, hw->mac.rar_entry_count - 1); -} - -/** - * e1000_fix_nvm_checksum_82571 - Fix EEPROM checksum - * @hw: pointer to the HW structure - * - * Verifies that the EEPROM has completed the update. After updating the - * EEPROM, we need to check bit 15 in work 0x23 for the checksum fix. If - * the checksum fix is not implemented, we need to set the bit and update - * the checksum. Otherwise, if bit 15 is set and the checksum is incorrect, - * we need to return bad checksum. - **/ -static s32 e1000_fix_nvm_checksum_82571(struct e1000_hw *hw) -{ - struct e1000_nvm_info *nvm = &hw->nvm; - s32 ret_val; - u16 data; - - if (nvm->type != e1000_nvm_flash_hw) - return 0; - - /* - * Check bit 4 of word 10h. If it is 0, firmware is done updating - * 10h-12h. Checksum may need to be fixed. - */ - ret_val = e1000_read_nvm(hw, 0x10, 1, &data); - if (ret_val) - return ret_val; - - if (!(data & 0x10)) { - /* - * Read 0x23 and check bit 15. This bit is a 1 - * when the checksum has already been fixed. If - * the checksum is still wrong and this bit is a - * 1, we need to return bad checksum. Otherwise, - * we need to set this bit to a 1 and update the - * checksum. - */ - ret_val = e1000_read_nvm(hw, 0x23, 1, &data); - if (ret_val) - return ret_val; - - if (!(data & 0x8000)) { - data |= 0x8000; - ret_val = e1000_write_nvm(hw, 0x23, 1, &data); - if (ret_val) - return ret_val; - ret_val = e1000e_update_nvm_checksum(hw); - } - } - - return 0; -} - -/** - * e1000_read_mac_addr_82571 - Read device MAC address - * @hw: pointer to the HW structure - **/ -static s32 e1000_read_mac_addr_82571(struct e1000_hw *hw) -{ - s32 ret_val = 0; - - if (hw->mac.type == e1000_82571) { - /* - * If there's an alternate MAC address place it in RAR0 - * so that it will override the Si installed default perm - * address. - */ - ret_val = e1000_check_alt_mac_addr_generic(hw); - if (ret_val) - goto out; - } - - ret_val = e1000_read_mac_addr_generic(hw); - -out: - return ret_val; -} - -/** - * e1000_power_down_phy_copper_82571 - Remove link during PHY power down - * @hw: pointer to the HW structure - * - * In the case of a PHY power down to save power, or to turn off link during a - * driver unload, or wake on lan is not enabled, remove the link. - **/ -static void e1000_power_down_phy_copper_82571(struct e1000_hw *hw) -{ - struct e1000_phy_info *phy = &hw->phy; - struct e1000_mac_info *mac = &hw->mac; - - if (!(phy->ops.check_reset_block)) - return; - - /* If the management interface is not enabled, then power down */ - if (!(mac->ops.check_mng_mode(hw) || phy->ops.check_reset_block(hw))) - e1000_power_down_phy_copper(hw); -} - -/** - * e1000_clear_hw_cntrs_82571 - Clear device specific hardware counters - * @hw: pointer to the HW structure - * - * Clears the hardware counters by reading the counter registers. - **/ -static void e1000_clear_hw_cntrs_82571(struct e1000_hw *hw) -{ - e1000e_clear_hw_cntrs_base(hw); - - er32(PRC64); - er32(PRC127); - er32(PRC255); - er32(PRC511); - er32(PRC1023); - er32(PRC1522); - er32(PTC64); - er32(PTC127); - er32(PTC255); - er32(PTC511); - er32(PTC1023); - er32(PTC1522); - - er32(ALGNERRC); - er32(RXERRC); - er32(TNCRS); - er32(CEXTERR); - er32(TSCTC); - er32(TSCTFC); - - er32(MGTPRC); - er32(MGTPDC); - er32(MGTPTC); - - er32(IAC); - er32(ICRXOC); - - er32(ICRXPTC); - er32(ICRXATC); - er32(ICTXPTC); - er32(ICTXATC); - er32(ICTXQEC); - er32(ICTXQMTC); - er32(ICRXDMTC); -} - -static struct e1000_mac_operations e82571_mac_ops = { - /* .check_mng_mode: mac type dependent */ - /* .check_for_link: media type dependent */ - .id_led_init = e1000e_id_led_init, - .cleanup_led = e1000e_cleanup_led_generic, - .clear_hw_cntrs = e1000_clear_hw_cntrs_82571, - .get_bus_info = e1000e_get_bus_info_pcie, - .set_lan_id = e1000_set_lan_id_multi_port_pcie, - /* .get_link_up_info: media type dependent */ - /* .led_on: mac type dependent */ - .led_off = e1000e_led_off_generic, - .update_mc_addr_list = e1000e_update_mc_addr_list_generic, - .write_vfta = e1000_write_vfta_generic, - .clear_vfta = e1000_clear_vfta_82571, - .reset_hw = e1000_reset_hw_82571, - .init_hw = e1000_init_hw_82571, - .setup_link = e1000_setup_link_82571, - /* .setup_physical_interface: media type dependent */ - .setup_led = e1000e_setup_led_generic, - .read_mac_addr = e1000_read_mac_addr_82571, -}; - -static struct e1000_phy_operations e82_phy_ops_igp = { - .acquire = e1000_get_hw_semaphore_82571, - .check_polarity = e1000_check_polarity_igp, - .check_reset_block = e1000e_check_reset_block_generic, - .commit = NULL, - .force_speed_duplex = e1000e_phy_force_speed_duplex_igp, - .get_cfg_done = e1000_get_cfg_done_82571, - .get_cable_length = e1000e_get_cable_length_igp_2, - .get_info = e1000e_get_phy_info_igp, - .read_reg = e1000e_read_phy_reg_igp, - .release = e1000_put_hw_semaphore_82571, - .reset = e1000e_phy_hw_reset_generic, - .set_d0_lplu_state = e1000_set_d0_lplu_state_82571, - .set_d3_lplu_state = e1000e_set_d3_lplu_state, - .write_reg = e1000e_write_phy_reg_igp, - .cfg_on_link_up = NULL, -}; - -static struct e1000_phy_operations e82_phy_ops_m88 = { - .acquire = e1000_get_hw_semaphore_82571, - .check_polarity = e1000_check_polarity_m88, - .check_reset_block = e1000e_check_reset_block_generic, - .commit = e1000e_phy_sw_reset, - .force_speed_duplex = e1000e_phy_force_speed_duplex_m88, - .get_cfg_done = e1000e_get_cfg_done, - .get_cable_length = e1000e_get_cable_length_m88, - .get_info = e1000e_get_phy_info_m88, - .read_reg = e1000e_read_phy_reg_m88, - .release = e1000_put_hw_semaphore_82571, - .reset = e1000e_phy_hw_reset_generic, - .set_d0_lplu_state = e1000_set_d0_lplu_state_82571, - .set_d3_lplu_state = e1000e_set_d3_lplu_state, - .write_reg = e1000e_write_phy_reg_m88, - .cfg_on_link_up = NULL, -}; - -static struct e1000_phy_operations e82_phy_ops_bm = { - .acquire = e1000_get_hw_semaphore_82571, - .check_polarity = e1000_check_polarity_m88, - .check_reset_block = e1000e_check_reset_block_generic, - .commit = e1000e_phy_sw_reset, - .force_speed_duplex = e1000e_phy_force_speed_duplex_m88, - .get_cfg_done = e1000e_get_cfg_done, - .get_cable_length = e1000e_get_cable_length_m88, - .get_info = e1000e_get_phy_info_m88, - .read_reg = e1000e_read_phy_reg_bm2, - .release = e1000_put_hw_semaphore_82571, - .reset = e1000e_phy_hw_reset_generic, - .set_d0_lplu_state = e1000_set_d0_lplu_state_82571, - .set_d3_lplu_state = e1000e_set_d3_lplu_state, - .write_reg = e1000e_write_phy_reg_bm2, - .cfg_on_link_up = NULL, -}; - -static struct e1000_nvm_operations e82571_nvm_ops = { - .acquire = e1000_acquire_nvm_82571, - .read = e1000e_read_nvm_eerd, - .release = e1000_release_nvm_82571, - .update = e1000_update_nvm_checksum_82571, - .valid_led_default = e1000_valid_led_default_82571, - .validate = e1000_validate_nvm_checksum_82571, - .write = e1000_write_nvm_82571, -}; - -struct e1000_info e1000_82571_info = { - .mac = e1000_82571, - .flags = FLAG_HAS_HW_VLAN_FILTER - | FLAG_HAS_JUMBO_FRAMES - | FLAG_HAS_WOL - | FLAG_APME_IN_CTRL3 - | FLAG_RX_CSUM_ENABLED - | FLAG_HAS_CTRLEXT_ON_LOAD - | FLAG_HAS_SMART_POWER_DOWN - | FLAG_RESET_OVERWRITES_LAA /* errata */ - | FLAG_TARC_SPEED_MODE_BIT /* errata */ - | FLAG_APME_CHECK_PORT_B, - .flags2 = FLAG2_DISABLE_ASPM_L1 /* errata 13 */ - | FLAG2_DMA_BURST, - .pba = 38, - .max_hw_frame_size = DEFAULT_JUMBO, - .get_variants = e1000_get_variants_82571, - .mac_ops = &e82571_mac_ops, - .phy_ops = &e82_phy_ops_igp, - .nvm_ops = &e82571_nvm_ops, -}; - -struct e1000_info e1000_82572_info = { - .mac = e1000_82572, - .flags = FLAG_HAS_HW_VLAN_FILTER - | FLAG_HAS_JUMBO_FRAMES - | FLAG_HAS_WOL - | FLAG_APME_IN_CTRL3 - | FLAG_RX_CSUM_ENABLED - | FLAG_HAS_CTRLEXT_ON_LOAD - | FLAG_TARC_SPEED_MODE_BIT, /* errata */ - .flags2 = FLAG2_DISABLE_ASPM_L1 /* errata 13 */ - | FLAG2_DMA_BURST, - .pba = 38, - .max_hw_frame_size = DEFAULT_JUMBO, - .get_variants = e1000_get_variants_82571, - .mac_ops = &e82571_mac_ops, - .phy_ops = &e82_phy_ops_igp, - .nvm_ops = &e82571_nvm_ops, -}; - -struct e1000_info e1000_82573_info = { - .mac = e1000_82573, - .flags = FLAG_HAS_HW_VLAN_FILTER - | FLAG_HAS_WOL - | FLAG_APME_IN_CTRL3 - | FLAG_RX_CSUM_ENABLED - | FLAG_HAS_SMART_POWER_DOWN - | FLAG_HAS_AMT - | FLAG_HAS_SWSM_ON_LOAD, - .flags2 = FLAG2_DISABLE_ASPM_L1 - | FLAG2_DISABLE_ASPM_L0S, - .pba = 20, - .max_hw_frame_size = ETH_FRAME_LEN + ETH_FCS_LEN, - .get_variants = e1000_get_variants_82571, - .mac_ops = &e82571_mac_ops, - .phy_ops = &e82_phy_ops_m88, - .nvm_ops = &e82571_nvm_ops, -}; - -struct e1000_info e1000_82574_info = { - .mac = e1000_82574, - .flags = FLAG_HAS_HW_VLAN_FILTER - | FLAG_HAS_MSIX - | FLAG_HAS_JUMBO_FRAMES - | FLAG_HAS_WOL - | FLAG_APME_IN_CTRL3 - | FLAG_RX_CSUM_ENABLED - | FLAG_HAS_SMART_POWER_DOWN - | FLAG_HAS_AMT - | FLAG_HAS_CTRLEXT_ON_LOAD, - .flags2 = FLAG2_CHECK_PHY_HANG - | FLAG2_DISABLE_ASPM_L0S, - .pba = 32, - .max_hw_frame_size = DEFAULT_JUMBO, - .get_variants = e1000_get_variants_82571, - .mac_ops = &e82571_mac_ops, - .phy_ops = &e82_phy_ops_bm, - .nvm_ops = &e82571_nvm_ops, -}; - -struct e1000_info e1000_82583_info = { - .mac = e1000_82583, - .flags = FLAG_HAS_HW_VLAN_FILTER - | FLAG_HAS_WOL - | FLAG_APME_IN_CTRL3 - | FLAG_RX_CSUM_ENABLED - | FLAG_HAS_SMART_POWER_DOWN - | FLAG_HAS_AMT - | FLAG_HAS_JUMBO_FRAMES - | FLAG_HAS_CTRLEXT_ON_LOAD, - .flags2 = FLAG2_DISABLE_ASPM_L0S, - .pba = 32, - .max_hw_frame_size = DEFAULT_JUMBO, - .get_variants = e1000_get_variants_82571, - .mac_ops = &e82571_mac_ops, - .phy_ops = &e82_phy_ops_bm, - .nvm_ops = &e82571_nvm_ops, -}; - |