c00148556a
- add some new hardware support for 82599 - Big change to interrupt architecture, it now uses a queue which contains an RX/TX pair as the recipient of the interrupt. This will reduce overall system interrupts/msix usage. - Improved RX mbuf handling: the old get_buf routine is no longer synchronized with rxeof, this allows the elimination of packet discards due to mbuf allocation failure. - Much simplified and improved AIM code, it now happens in the queue interrupt context and takes into account both the traffic on the RX AND TX side. - variety of small tweaks, like ring size, that have been seen as performance improvements. - Thanks to those that provided feedback or suggested changes, I hope I've caught all of them.
1352 lines
40 KiB
C
1352 lines
40 KiB
C
/******************************************************************************
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Copyright (c) 2001-2010, Intel Corporation
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the Intel Corporation nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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******************************************************************************/
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/*$FreeBSD$*/
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#include "ixgbe_type.h"
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#include "ixgbe_api.h"
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#include "ixgbe_common.h"
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#include "ixgbe_phy.h"
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u32 ixgbe_get_pcie_msix_count_82598(struct ixgbe_hw *hw);
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s32 ixgbe_init_ops_82598(struct ixgbe_hw *hw);
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static s32 ixgbe_get_link_capabilities_82598(struct ixgbe_hw *hw,
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ixgbe_link_speed *speed,
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bool *autoneg);
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static enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw);
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s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw, s32 packetbuf_num);
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static s32 ixgbe_start_mac_link_82598(struct ixgbe_hw *hw,
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bool autoneg_wait_to_complete);
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static s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw,
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ixgbe_link_speed *speed, bool *link_up,
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bool link_up_wait_to_complete);
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static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw,
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ixgbe_link_speed speed,
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bool autoneg,
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bool autoneg_wait_to_complete);
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static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
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ixgbe_link_speed speed,
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bool autoneg,
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bool autoneg_wait_to_complete);
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static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw);
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s32 ixgbe_start_hw_82598(struct ixgbe_hw *hw);
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void ixgbe_enable_relaxed_ordering_82598(struct ixgbe_hw *hw);
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s32 ixgbe_set_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq);
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static s32 ixgbe_clear_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq);
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s32 ixgbe_set_vfta_82598(struct ixgbe_hw *hw, u32 vlan,
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u32 vind, bool vlan_on);
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static s32 ixgbe_clear_vfta_82598(struct ixgbe_hw *hw);
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s32 ixgbe_read_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 *val);
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s32 ixgbe_write_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 val);
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s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
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u8 *eeprom_data);
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u32 ixgbe_get_supported_physical_layer_82598(struct ixgbe_hw *hw);
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s32 ixgbe_init_phy_ops_82598(struct ixgbe_hw *hw);
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void ixgbe_set_lan_id_multi_port_pcie_82598(struct ixgbe_hw *hw);
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void ixgbe_set_pcie_completion_timeout(struct ixgbe_hw *hw);
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static s32 ixgbe_validate_link_ready(struct ixgbe_hw *hw);
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/**
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* ixgbe_set_pcie_completion_timeout - set pci-e completion timeout
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* @hw: pointer to the HW structure
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*
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* The defaults for 82598 should be in the range of 50us to 50ms,
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* however the hardware default for these parts is 500us to 1ms which is less
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* than the 10ms recommended by the pci-e spec. To address this we need to
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* increase the value to either 10ms to 250ms for capability version 1 config,
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* or 16ms to 55ms for version 2.
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**/
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void ixgbe_set_pcie_completion_timeout(struct ixgbe_hw *hw)
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{
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u32 gcr = IXGBE_READ_REG(hw, IXGBE_GCR);
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u16 pcie_devctl2;
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/* only take action if timeout value is defaulted to 0 */
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if (gcr & IXGBE_GCR_CMPL_TMOUT_MASK)
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goto out;
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/*
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* if capababilities version is type 1 we can write the
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* timeout of 10ms to 250ms through the GCR register
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*/
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if (!(gcr & IXGBE_GCR_CAP_VER2)) {
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gcr |= IXGBE_GCR_CMPL_TMOUT_10ms;
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goto out;
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}
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/*
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* for version 2 capabilities we need to write the config space
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* directly in order to set the completion timeout value for
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* 16ms to 55ms
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*/
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pcie_devctl2 = IXGBE_READ_PCIE_WORD(hw, IXGBE_PCI_DEVICE_CONTROL2);
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pcie_devctl2 |= IXGBE_PCI_DEVICE_CONTROL2_16ms;
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IXGBE_WRITE_PCIE_WORD(hw, IXGBE_PCI_DEVICE_CONTROL2, pcie_devctl2);
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out:
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/* disable completion timeout resend */
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gcr &= ~IXGBE_GCR_CMPL_TMOUT_RESEND;
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IXGBE_WRITE_REG(hw, IXGBE_GCR, gcr);
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}
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/**
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* ixgbe_get_pcie_msix_count_82598 - Gets MSI-X vector count
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* @hw: pointer to hardware structure
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*
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* Read PCIe configuration space, and get the MSI-X vector count from
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* the capabilities table.
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**/
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u32 ixgbe_get_pcie_msix_count_82598(struct ixgbe_hw *hw)
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{
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u32 msix_count = 18;
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DEBUGFUNC("ixgbe_get_pcie_msix_count_82598");
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if (hw->mac.msix_vectors_from_pcie) {
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msix_count = IXGBE_READ_PCIE_WORD(hw,
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IXGBE_PCIE_MSIX_82598_CAPS);
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msix_count &= IXGBE_PCIE_MSIX_TBL_SZ_MASK;
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/* MSI-X count is zero-based in HW, so increment to give
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* proper value */
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msix_count++;
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}
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return msix_count;
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}
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/**
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* ixgbe_init_ops_82598 - Inits func ptrs and MAC type
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* @hw: pointer to hardware structure
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*
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* Initialize the function pointers and assign the MAC type for 82598.
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* Does not touch the hardware.
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**/
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s32 ixgbe_init_ops_82598(struct ixgbe_hw *hw)
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{
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struct ixgbe_mac_info *mac = &hw->mac;
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struct ixgbe_phy_info *phy = &hw->phy;
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s32 ret_val;
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DEBUGFUNC("ixgbe_init_ops_82598");
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ret_val = ixgbe_init_phy_ops_generic(hw);
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ret_val = ixgbe_init_ops_generic(hw);
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/* PHY */
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phy->ops.init = &ixgbe_init_phy_ops_82598;
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/* MAC */
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mac->ops.start_hw = &ixgbe_start_hw_82598;
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mac->ops.enable_relaxed_ordering = &ixgbe_enable_relaxed_ordering_82598;
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mac->ops.reset_hw = &ixgbe_reset_hw_82598;
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mac->ops.get_media_type = &ixgbe_get_media_type_82598;
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mac->ops.get_supported_physical_layer =
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&ixgbe_get_supported_physical_layer_82598;
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mac->ops.read_analog_reg8 = &ixgbe_read_analog_reg8_82598;
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mac->ops.write_analog_reg8 = &ixgbe_write_analog_reg8_82598;
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mac->ops.set_lan_id = &ixgbe_set_lan_id_multi_port_pcie_82598;
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/* RAR, Multicast, VLAN */
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mac->ops.set_vmdq = &ixgbe_set_vmdq_82598;
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mac->ops.clear_vmdq = &ixgbe_clear_vmdq_82598;
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mac->ops.set_vfta = &ixgbe_set_vfta_82598;
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mac->ops.clear_vfta = &ixgbe_clear_vfta_82598;
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/* Flow Control */
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mac->ops.fc_enable = &ixgbe_fc_enable_82598;
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mac->mcft_size = 128;
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mac->vft_size = 128;
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mac->num_rar_entries = 16;
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mac->max_tx_queues = 32;
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mac->max_rx_queues = 64;
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mac->max_msix_vectors = ixgbe_get_pcie_msix_count_82598(hw);
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/* SFP+ Module */
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phy->ops.read_i2c_eeprom = &ixgbe_read_i2c_eeprom_82598;
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/* Link */
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mac->ops.check_link = &ixgbe_check_mac_link_82598;
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mac->ops.setup_link = &ixgbe_setup_mac_link_82598;
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mac->ops.get_link_capabilities =
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&ixgbe_get_link_capabilities_82598;
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return ret_val;
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}
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/**
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* ixgbe_init_phy_ops_82598 - PHY/SFP specific init
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* @hw: pointer to hardware structure
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*
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* Initialize any function pointers that were not able to be
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* set during init_shared_code because the PHY/SFP type was
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* not known. Perform the SFP init if necessary.
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*
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**/
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s32 ixgbe_init_phy_ops_82598(struct ixgbe_hw *hw)
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{
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struct ixgbe_mac_info *mac = &hw->mac;
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struct ixgbe_phy_info *phy = &hw->phy;
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s32 ret_val = IXGBE_SUCCESS;
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u16 list_offset, data_offset;
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DEBUGFUNC("ixgbe_init_phy_ops_82598");
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/* Identify the PHY */
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phy->ops.identify(hw);
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/* Overwrite the link function pointers if copper PHY */
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if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
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mac->ops.setup_link = &ixgbe_setup_copper_link_82598;
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mac->ops.get_link_capabilities =
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&ixgbe_get_copper_link_capabilities_generic;
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}
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switch (hw->phy.type) {
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case ixgbe_phy_tn:
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phy->ops.setup_link = &ixgbe_setup_phy_link_tnx;
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phy->ops.check_link = &ixgbe_check_phy_link_tnx;
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phy->ops.get_firmware_version =
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&ixgbe_get_phy_firmware_version_tnx;
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break;
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case ixgbe_phy_aq:
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phy->ops.get_firmware_version =
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&ixgbe_get_phy_firmware_version_generic;
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break;
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case ixgbe_phy_nl:
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phy->ops.reset = &ixgbe_reset_phy_nl;
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/* Call SFP+ identify routine to get the SFP+ module type */
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ret_val = phy->ops.identify_sfp(hw);
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if (ret_val != IXGBE_SUCCESS)
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goto out;
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else if (hw->phy.sfp_type == ixgbe_sfp_type_unknown) {
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ret_val = IXGBE_ERR_SFP_NOT_SUPPORTED;
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goto out;
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}
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/* Check to see if SFP+ module is supported */
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ret_val = ixgbe_get_sfp_init_sequence_offsets(hw,
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&list_offset,
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&data_offset);
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if (ret_val != IXGBE_SUCCESS) {
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ret_val = IXGBE_ERR_SFP_NOT_SUPPORTED;
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goto out;
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}
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break;
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default:
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break;
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}
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out:
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return ret_val;
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}
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/**
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* ixgbe_start_hw_82598 - Prepare hardware for Tx/Rx
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* @hw: pointer to hardware structure
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*
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* Starts the hardware using the generic start_hw function.
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* Disables relaxed ordering Then set pcie completion timeout
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*
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**/
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s32 ixgbe_start_hw_82598(struct ixgbe_hw *hw)
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{
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u32 regval;
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u32 i;
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s32 ret_val = IXGBE_SUCCESS;
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DEBUGFUNC("ixgbe_start_hw_82598");
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ret_val = ixgbe_start_hw_generic(hw);
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/* Disable relaxed ordering */
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for (i = 0; ((i < hw->mac.max_tx_queues) &&
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(i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
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regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(i));
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regval &= ~IXGBE_DCA_TXCTRL_TX_WB_RO_EN;
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IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(i), regval);
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}
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for (i = 0; ((i < hw->mac.max_rx_queues) &&
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(i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
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regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
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regval &= ~(IXGBE_DCA_RXCTRL_DESC_WRO_EN |
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IXGBE_DCA_RXCTRL_DESC_HSRO_EN);
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IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval);
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}
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/* set the completion timeout for interface */
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if (ret_val == IXGBE_SUCCESS)
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ixgbe_set_pcie_completion_timeout(hw);
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return ret_val;
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}
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|
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/**
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* ixgbe_get_link_capabilities_82598 - Determines link capabilities
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* @hw: pointer to hardware structure
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* @speed: pointer to link speed
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* @autoneg: boolean auto-negotiation value
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*
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* Determines the link capabilities by reading the AUTOC register.
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**/
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static s32 ixgbe_get_link_capabilities_82598(struct ixgbe_hw *hw,
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ixgbe_link_speed *speed,
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bool *autoneg)
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{
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s32 status = IXGBE_SUCCESS;
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u32 autoc = 0;
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|
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DEBUGFUNC("ixgbe_get_link_capabilities_82598");
|
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|
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/*
|
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* Determine link capabilities based on the stored value of AUTOC,
|
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* which represents EEPROM defaults. If AUTOC value has not been
|
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* stored, use the current register value.
|
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*/
|
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if (hw->mac.orig_link_settings_stored)
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autoc = hw->mac.orig_autoc;
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else
|
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autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
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|
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switch (autoc & IXGBE_AUTOC_LMS_MASK) {
|
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case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
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*speed = IXGBE_LINK_SPEED_1GB_FULL;
|
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*autoneg = FALSE;
|
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break;
|
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|
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case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
|
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*speed = IXGBE_LINK_SPEED_10GB_FULL;
|
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*autoneg = FALSE;
|
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break;
|
|
|
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case IXGBE_AUTOC_LMS_1G_AN:
|
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*speed = IXGBE_LINK_SPEED_1GB_FULL;
|
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*autoneg = TRUE;
|
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break;
|
|
|
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case IXGBE_AUTOC_LMS_KX4_AN:
|
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case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
|
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*speed = IXGBE_LINK_SPEED_UNKNOWN;
|
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if (autoc & IXGBE_AUTOC_KX4_SUPP)
|
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*speed |= IXGBE_LINK_SPEED_10GB_FULL;
|
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if (autoc & IXGBE_AUTOC_KX_SUPP)
|
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*speed |= IXGBE_LINK_SPEED_1GB_FULL;
|
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*autoneg = TRUE;
|
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break;
|
|
|
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default:
|
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status = IXGBE_ERR_LINK_SETUP;
|
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break;
|
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}
|
|
|
|
return status;
|
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}
|
|
|
|
/**
|
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* ixgbe_get_media_type_82598 - Determines media type
|
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* @hw: pointer to hardware structure
|
|
*
|
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* Returns the media type (fiber, copper, backplane)
|
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**/
|
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static enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw)
|
|
{
|
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enum ixgbe_media_type media_type;
|
|
|
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DEBUGFUNC("ixgbe_get_media_type_82598");
|
|
|
|
/* Detect if there is a copper PHY attached. */
|
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if (hw->phy.type == ixgbe_phy_cu_unknown ||
|
|
hw->phy.type == ixgbe_phy_tn ||
|
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hw->phy.type == ixgbe_phy_aq) {
|
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media_type = ixgbe_media_type_copper;
|
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goto out;
|
|
}
|
|
|
|
/* Media type for I82598 is based on device ID */
|
|
switch (hw->device_id) {
|
|
case IXGBE_DEV_ID_82598:
|
|
case IXGBE_DEV_ID_82598_BX:
|
|
/* Default device ID is mezzanine card KX/KX4 */
|
|
media_type = ixgbe_media_type_backplane;
|
|
break;
|
|
case IXGBE_DEV_ID_82598AF_DUAL_PORT:
|
|
case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
|
|
case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
|
|
case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
|
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case IXGBE_DEV_ID_82598EB_XF_LR:
|
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case IXGBE_DEV_ID_82598EB_SFP_LOM:
|
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media_type = ixgbe_media_type_fiber;
|
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break;
|
|
case IXGBE_DEV_ID_82598EB_CX4:
|
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case IXGBE_DEV_ID_82598_CX4_DUAL_PORT:
|
|
media_type = ixgbe_media_type_cx4;
|
|
break;
|
|
case IXGBE_DEV_ID_82598AT:
|
|
case IXGBE_DEV_ID_82598AT2:
|
|
media_type = ixgbe_media_type_copper;
|
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break;
|
|
default:
|
|
media_type = ixgbe_media_type_unknown;
|
|
break;
|
|
}
|
|
out:
|
|
return media_type;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_fc_enable_82598 - Enable flow control
|
|
* @hw: pointer to hardware structure
|
|
* @packetbuf_num: packet buffer number (0-7)
|
|
*
|
|
* Enable flow control according to the current settings.
|
|
**/
|
|
s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw, s32 packetbuf_num)
|
|
{
|
|
s32 ret_val = IXGBE_SUCCESS;
|
|
u32 fctrl_reg;
|
|
u32 rmcs_reg;
|
|
u32 reg;
|
|
u32 link_speed = 0;
|
|
bool link_up;
|
|
|
|
DEBUGFUNC("ixgbe_fc_enable_82598");
|
|
|
|
/*
|
|
* On 82598 having Rx FC on causes resets while doing 1G
|
|
* so if it's on turn it off once we know link_speed. For
|
|
* more details see 82598 Specification update.
|
|
*/
|
|
hw->mac.ops.check_link(hw, &link_speed, &link_up, FALSE);
|
|
if (link_up && link_speed == IXGBE_LINK_SPEED_1GB_FULL) {
|
|
switch (hw->fc.requested_mode) {
|
|
case ixgbe_fc_full:
|
|
hw->fc.requested_mode = ixgbe_fc_tx_pause;
|
|
break;
|
|
case ixgbe_fc_rx_pause:
|
|
hw->fc.requested_mode = ixgbe_fc_none;
|
|
break;
|
|
default:
|
|
/* no change */
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Negotiate the fc mode to use */
|
|
ret_val = ixgbe_fc_autoneg(hw);
|
|
if (ret_val)
|
|
goto out;
|
|
|
|
/* Disable any previous flow control settings */
|
|
fctrl_reg = IXGBE_READ_REG(hw, IXGBE_FCTRL);
|
|
fctrl_reg &= ~(IXGBE_FCTRL_RFCE | IXGBE_FCTRL_RPFCE);
|
|
|
|
rmcs_reg = IXGBE_READ_REG(hw, IXGBE_RMCS);
|
|
rmcs_reg &= ~(IXGBE_RMCS_TFCE_PRIORITY | IXGBE_RMCS_TFCE_802_3X);
|
|
|
|
/*
|
|
* The possible values of fc.current_mode are:
|
|
* 0: Flow control is completely disabled
|
|
* 1: Rx flow control is enabled (we can receive pause frames,
|
|
* but not send pause frames).
|
|
* 2: Tx flow control is enabled (we can send pause frames but
|
|
* we do not support receiving pause frames).
|
|
* 3: Both Rx and Tx flow control (symmetric) are enabled.
|
|
* other: Invalid.
|
|
*/
|
|
switch (hw->fc.current_mode) {
|
|
case ixgbe_fc_none:
|
|
/* Flow control is disabled by software override or autoneg.
|
|
* The code below will actually disable it in the HW.
|
|
*/
|
|
break;
|
|
case ixgbe_fc_rx_pause:
|
|
/*
|
|
* Rx Flow control is enabled and Tx Flow control is
|
|
* disabled by software override. Since there really
|
|
* isn't a way to advertise that we are capable of RX
|
|
* Pause ONLY, we will advertise that we support both
|
|
* symmetric and asymmetric Rx PAUSE. Later, we will
|
|
* disable the adapter's ability to send PAUSE frames.
|
|
*/
|
|
fctrl_reg |= IXGBE_FCTRL_RFCE;
|
|
break;
|
|
case ixgbe_fc_tx_pause:
|
|
/*
|
|
* Tx Flow control is enabled, and Rx Flow control is
|
|
* disabled by software override.
|
|
*/
|
|
rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
|
|
break;
|
|
case ixgbe_fc_full:
|
|
/* Flow control (both Rx and Tx) is enabled by SW override. */
|
|
fctrl_reg |= IXGBE_FCTRL_RFCE;
|
|
rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
|
|
break;
|
|
default:
|
|
DEBUGOUT("Flow control param set incorrectly\n");
|
|
ret_val = IXGBE_ERR_CONFIG;
|
|
goto out;
|
|
break;
|
|
}
|
|
|
|
/* Set 802.3x based flow control settings. */
|
|
fctrl_reg |= IXGBE_FCTRL_DPF;
|
|
IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl_reg);
|
|
IXGBE_WRITE_REG(hw, IXGBE_RMCS, rmcs_reg);
|
|
|
|
/* Set up and enable Rx high/low water mark thresholds, enable XON. */
|
|
if (hw->fc.current_mode & ixgbe_fc_tx_pause) {
|
|
if (hw->fc.send_xon) {
|
|
IXGBE_WRITE_REG(hw, IXGBE_FCRTL(packetbuf_num),
|
|
(hw->fc.low_water | IXGBE_FCRTL_XONE));
|
|
} else {
|
|
IXGBE_WRITE_REG(hw, IXGBE_FCRTL(packetbuf_num),
|
|
hw->fc.low_water);
|
|
}
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_FCRTH(packetbuf_num),
|
|
(hw->fc.high_water | IXGBE_FCRTH_FCEN));
|
|
}
|
|
|
|
/* Configure pause time (2 TCs per register) */
|
|
reg = IXGBE_READ_REG(hw, IXGBE_FCTTV(packetbuf_num / 2));
|
|
if ((packetbuf_num & 1) == 0)
|
|
reg = (reg & 0xFFFF0000) | hw->fc.pause_time;
|
|
else
|
|
reg = (reg & 0x0000FFFF) | (hw->fc.pause_time << 16);
|
|
IXGBE_WRITE_REG(hw, IXGBE_FCTTV(packetbuf_num / 2), reg);
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_FCRTV, (hw->fc.pause_time >> 1));
|
|
|
|
out:
|
|
return ret_val;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_start_mac_link_82598 - Configures MAC link settings
|
|
* @hw: pointer to hardware structure
|
|
*
|
|
* Configures link settings based on values in the ixgbe_hw struct.
|
|
* Restarts the link. Performs autonegotiation if needed.
|
|
**/
|
|
static s32 ixgbe_start_mac_link_82598(struct ixgbe_hw *hw,
|
|
bool autoneg_wait_to_complete)
|
|
{
|
|
u32 autoc_reg;
|
|
u32 links_reg;
|
|
u32 i;
|
|
s32 status = IXGBE_SUCCESS;
|
|
|
|
DEBUGFUNC("ixgbe_start_mac_link_82598");
|
|
|
|
/* Restart link */
|
|
autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
|
|
autoc_reg |= IXGBE_AUTOC_AN_RESTART;
|
|
IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
|
|
|
|
/* Only poll for autoneg to complete if specified to do so */
|
|
if (autoneg_wait_to_complete) {
|
|
if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
|
|
IXGBE_AUTOC_LMS_KX4_AN ||
|
|
(autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
|
|
IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
|
|
links_reg = 0; /* Just in case Autoneg time = 0 */
|
|
for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
|
|
links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
|
|
if (links_reg & IXGBE_LINKS_KX_AN_COMP)
|
|
break;
|
|
msec_delay(100);
|
|
}
|
|
if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
|
|
status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
|
|
DEBUGOUT("Autonegotiation did not complete.\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Add delay to filter out noises during initial link setup */
|
|
msec_delay(50);
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_check_mac_link_82598 - Get link/speed status
|
|
* @hw: pointer to hardware structure
|
|
* @speed: pointer to link speed
|
|
* @link_up: TRUE is link is up, FALSE otherwise
|
|
* @link_up_wait_to_complete: bool used to wait for link up or not
|
|
*
|
|
* Reads the links register to determine if link is up and the current speed
|
|
**/
|
|
static s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw,
|
|
ixgbe_link_speed *speed, bool *link_up,
|
|
bool link_up_wait_to_complete)
|
|
{
|
|
u32 links_reg;
|
|
u32 i;
|
|
u16 link_reg, adapt_comp_reg;
|
|
|
|
DEBUGFUNC("ixgbe_check_mac_link_82598");
|
|
|
|
/*
|
|
* SERDES PHY requires us to read link status from undocumented
|
|
* register 0xC79F. Bit 0 set indicates link is up/ready; clear
|
|
* indicates link down. OxC00C is read to check that the XAUI lanes
|
|
* are active. Bit 0 clear indicates active; set indicates inactive.
|
|
*/
|
|
if (hw->phy.type == ixgbe_phy_nl) {
|
|
hw->phy.ops.read_reg(hw, 0xC79F, IXGBE_TWINAX_DEV, &link_reg);
|
|
hw->phy.ops.read_reg(hw, 0xC79F, IXGBE_TWINAX_DEV, &link_reg);
|
|
hw->phy.ops.read_reg(hw, 0xC00C, IXGBE_TWINAX_DEV,
|
|
&adapt_comp_reg);
|
|
if (link_up_wait_to_complete) {
|
|
for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
|
|
if ((link_reg & 1) &&
|
|
((adapt_comp_reg & 1) == 0)) {
|
|
*link_up = TRUE;
|
|
break;
|
|
} else {
|
|
*link_up = FALSE;
|
|
}
|
|
msec_delay(100);
|
|
hw->phy.ops.read_reg(hw, 0xC79F,
|
|
IXGBE_TWINAX_DEV,
|
|
&link_reg);
|
|
hw->phy.ops.read_reg(hw, 0xC00C,
|
|
IXGBE_TWINAX_DEV,
|
|
&adapt_comp_reg);
|
|
}
|
|
} else {
|
|
if ((link_reg & 1) &&
|
|
((adapt_comp_reg & 1) == 0))
|
|
*link_up = TRUE;
|
|
else
|
|
*link_up = FALSE;
|
|
}
|
|
|
|
if (*link_up == FALSE)
|
|
goto out;
|
|
}
|
|
|
|
links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
|
|
if (link_up_wait_to_complete) {
|
|
for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
|
|
if (links_reg & IXGBE_LINKS_UP) {
|
|
*link_up = TRUE;
|
|
break;
|
|
} else {
|
|
*link_up = FALSE;
|
|
}
|
|
msec_delay(100);
|
|
links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
|
|
}
|
|
} else {
|
|
if (links_reg & IXGBE_LINKS_UP)
|
|
*link_up = TRUE;
|
|
else
|
|
*link_up = FALSE;
|
|
}
|
|
|
|
if (links_reg & IXGBE_LINKS_SPEED)
|
|
*speed = IXGBE_LINK_SPEED_10GB_FULL;
|
|
else
|
|
*speed = IXGBE_LINK_SPEED_1GB_FULL;
|
|
|
|
if ((hw->device_id == IXGBE_DEV_ID_82598AT2) && (*link_up == TRUE) &&
|
|
(ixgbe_validate_link_ready(hw) != IXGBE_SUCCESS))
|
|
*link_up = FALSE;
|
|
|
|
/* if link is down, zero out the current_mode */
|
|
if (*link_up == FALSE) {
|
|
hw->fc.current_mode = ixgbe_fc_none;
|
|
hw->fc.fc_was_autonegged = FALSE;
|
|
}
|
|
|
|
out:
|
|
return IXGBE_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_setup_mac_link_82598 - Set MAC link speed
|
|
* @hw: pointer to hardware structure
|
|
* @speed: new link speed
|
|
* @autoneg: TRUE if autonegotiation enabled
|
|
* @autoneg_wait_to_complete: TRUE when waiting for completion is needed
|
|
*
|
|
* Set the link speed in the AUTOC register and restarts link.
|
|
**/
|
|
static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw,
|
|
ixgbe_link_speed speed, bool autoneg,
|
|
bool autoneg_wait_to_complete)
|
|
{
|
|
s32 status = IXGBE_SUCCESS;
|
|
ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
|
|
u32 curr_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
|
|
u32 autoc = curr_autoc;
|
|
u32 link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
|
|
|
|
DEBUGFUNC("ixgbe_setup_mac_link_82598");
|
|
|
|
/* Check to see if speed passed in is supported. */
|
|
ixgbe_get_link_capabilities(hw, &link_capabilities, &autoneg);
|
|
speed &= link_capabilities;
|
|
|
|
if (speed == IXGBE_LINK_SPEED_UNKNOWN)
|
|
status = IXGBE_ERR_LINK_SETUP;
|
|
|
|
/* Set KX4/KX support according to speed requested */
|
|
else if (link_mode == IXGBE_AUTOC_LMS_KX4_AN ||
|
|
link_mode == IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
|
|
autoc &= ~IXGBE_AUTOC_KX4_KX_SUPP_MASK;
|
|
if (speed & IXGBE_LINK_SPEED_10GB_FULL)
|
|
autoc |= IXGBE_AUTOC_KX4_SUPP;
|
|
if (speed & IXGBE_LINK_SPEED_1GB_FULL)
|
|
autoc |= IXGBE_AUTOC_KX_SUPP;
|
|
if (autoc != curr_autoc)
|
|
IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
|
|
}
|
|
|
|
if (status == IXGBE_SUCCESS) {
|
|
/*
|
|
* Setup and restart the link based on the new values in
|
|
* ixgbe_hw This will write the AUTOC register based on the new
|
|
* stored values
|
|
*/
|
|
status = ixgbe_start_mac_link_82598(hw,
|
|
autoneg_wait_to_complete);
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
|
|
/**
|
|
* ixgbe_setup_copper_link_82598 - Set the PHY autoneg advertised field
|
|
* @hw: pointer to hardware structure
|
|
* @speed: new link speed
|
|
* @autoneg: TRUE if autonegotiation enabled
|
|
* @autoneg_wait_to_complete: TRUE if waiting is needed to complete
|
|
*
|
|
* Sets the link speed in the AUTOC register in the MAC and restarts link.
|
|
**/
|
|
static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
|
|
ixgbe_link_speed speed,
|
|
bool autoneg,
|
|
bool autoneg_wait_to_complete)
|
|
{
|
|
s32 status;
|
|
|
|
DEBUGFUNC("ixgbe_setup_copper_link_82598");
|
|
|
|
/* Setup the PHY according to input speed */
|
|
status = hw->phy.ops.setup_link_speed(hw, speed, autoneg,
|
|
autoneg_wait_to_complete);
|
|
/* Set up MAC */
|
|
ixgbe_start_mac_link_82598(hw, autoneg_wait_to_complete);
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_reset_hw_82598 - Performs hardware reset
|
|
* @hw: pointer to hardware structure
|
|
*
|
|
* Resets the hardware by resetting the transmit and receive units, masks and
|
|
* clears all interrupts, performing a PHY reset, and performing a link (MAC)
|
|
* reset.
|
|
**/
|
|
static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
|
|
{
|
|
s32 status = IXGBE_SUCCESS;
|
|
s32 phy_status = IXGBE_SUCCESS;
|
|
u32 ctrl;
|
|
u32 gheccr;
|
|
u32 i;
|
|
u32 autoc;
|
|
u8 analog_val;
|
|
|
|
DEBUGFUNC("ixgbe_reset_hw_82598");
|
|
|
|
/* Call adapter stop to disable tx/rx and clear interrupts */
|
|
hw->mac.ops.stop_adapter(hw);
|
|
|
|
/*
|
|
* Power up the Atlas Tx lanes if they are currently powered down.
|
|
* Atlas Tx lanes are powered down for MAC loopback tests, but
|
|
* they are not automatically restored on reset.
|
|
*/
|
|
hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &analog_val);
|
|
if (analog_val & IXGBE_ATLAS_PDN_TX_REG_EN) {
|
|
/* Enable Tx Atlas so packets can be transmitted again */
|
|
hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
|
|
&analog_val);
|
|
analog_val &= ~IXGBE_ATLAS_PDN_TX_REG_EN;
|
|
hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
|
|
analog_val);
|
|
|
|
hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
|
|
&analog_val);
|
|
analog_val &= ~IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
|
|
hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
|
|
analog_val);
|
|
|
|
hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
|
|
&analog_val);
|
|
analog_val &= ~IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
|
|
hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
|
|
analog_val);
|
|
|
|
hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
|
|
&analog_val);
|
|
analog_val &= ~IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
|
|
hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
|
|
analog_val);
|
|
}
|
|
|
|
/* Reset PHY */
|
|
if (hw->phy.reset_disable == FALSE) {
|
|
/* PHY ops must be identified and initialized prior to reset */
|
|
|
|
/* Init PHY and function pointers, perform SFP setup */
|
|
phy_status = hw->phy.ops.init(hw);
|
|
if (phy_status == IXGBE_ERR_SFP_NOT_SUPPORTED)
|
|
goto reset_hw_out;
|
|
else if (phy_status == IXGBE_ERR_SFP_NOT_PRESENT)
|
|
goto no_phy_reset;
|
|
|
|
hw->phy.ops.reset(hw);
|
|
}
|
|
|
|
no_phy_reset:
|
|
/*
|
|
* Prevent the PCI-E bus from from hanging by disabling PCI-E master
|
|
* access and verify no pending requests before reset
|
|
*/
|
|
ixgbe_disable_pcie_master(hw);
|
|
|
|
mac_reset_top:
|
|
/*
|
|
* Issue global reset to the MAC. This needs to be a SW reset.
|
|
* If link reset is used, it might reset the MAC when mng is using it
|
|
*/
|
|
ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
|
|
IXGBE_WRITE_REG(hw, IXGBE_CTRL, (ctrl | IXGBE_CTRL_RST));
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
|
|
/* Poll for reset bit to self-clear indicating reset is complete */
|
|
for (i = 0; i < 10; i++) {
|
|
usec_delay(1);
|
|
ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
|
|
if (!(ctrl & IXGBE_CTRL_RST))
|
|
break;
|
|
}
|
|
if (ctrl & IXGBE_CTRL_RST) {
|
|
status = IXGBE_ERR_RESET_FAILED;
|
|
DEBUGOUT("Reset polling failed to complete.\n");
|
|
}
|
|
|
|
/*
|
|
* Double resets are required for recovery from certain error
|
|
* conditions. Between resets, it is necessary to stall to allow time
|
|
* for any pending HW events to complete. We use 1usec since that is
|
|
* what is needed for ixgbe_disable_pcie_master(). The second reset
|
|
* then clears out any effects of those events.
|
|
*/
|
|
if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
|
|
hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
|
|
usec_delay(1);
|
|
goto mac_reset_top;
|
|
}
|
|
|
|
msec_delay(50);
|
|
|
|
gheccr = IXGBE_READ_REG(hw, IXGBE_GHECCR);
|
|
gheccr &= ~((1 << 21) | (1 << 18) | (1 << 9) | (1 << 6));
|
|
IXGBE_WRITE_REG(hw, IXGBE_GHECCR, gheccr);
|
|
|
|
/*
|
|
* Store the original AUTOC value if it has not been
|
|
* stored off yet. Otherwise restore the stored original
|
|
* AUTOC value since the reset operation sets back to deaults.
|
|
*/
|
|
autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
|
|
if (hw->mac.orig_link_settings_stored == FALSE) {
|
|
hw->mac.orig_autoc = autoc;
|
|
hw->mac.orig_link_settings_stored = TRUE;
|
|
} else if (autoc != hw->mac.orig_autoc)
|
|
IXGBE_WRITE_REG(hw, IXGBE_AUTOC, hw->mac.orig_autoc);
|
|
|
|
/* Store the permanent mac address */
|
|
hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
|
|
|
|
/*
|
|
* Store MAC address from RAR0, clear receive address registers, and
|
|
* clear the multicast table
|
|
*/
|
|
hw->mac.ops.init_rx_addrs(hw);
|
|
|
|
|
|
|
|
reset_hw_out:
|
|
if (phy_status != IXGBE_SUCCESS)
|
|
status = phy_status;
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_set_vmdq_82598 - Associate a VMDq set index with a rx address
|
|
* @hw: pointer to hardware struct
|
|
* @rar: receive address register index to associate with a VMDq index
|
|
* @vmdq: VMDq set index
|
|
**/
|
|
s32 ixgbe_set_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
|
|
{
|
|
u32 rar_high;
|
|
|
|
DEBUGFUNC("ixgbe_set_vmdq_82598");
|
|
|
|
rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
|
|
rar_high &= ~IXGBE_RAH_VIND_MASK;
|
|
rar_high |= ((vmdq << IXGBE_RAH_VIND_SHIFT) & IXGBE_RAH_VIND_MASK);
|
|
IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
|
|
return IXGBE_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_clear_vmdq_82598 - Disassociate a VMDq set index from an rx address
|
|
* @hw: pointer to hardware struct
|
|
* @rar: receive address register index to associate with a VMDq index
|
|
* @vmdq: VMDq clear index (not used in 82598, but elsewhere)
|
|
**/
|
|
static s32 ixgbe_clear_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
|
|
{
|
|
u32 rar_high;
|
|
u32 rar_entries = hw->mac.num_rar_entries;
|
|
|
|
UNREFERENCED_PARAMETER(vmdq);
|
|
|
|
if (rar < rar_entries) {
|
|
rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
|
|
if (rar_high & IXGBE_RAH_VIND_MASK) {
|
|
rar_high &= ~IXGBE_RAH_VIND_MASK;
|
|
IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
|
|
}
|
|
} else {
|
|
DEBUGOUT1("RAR index %d is out of range.\n", rar);
|
|
}
|
|
|
|
return IXGBE_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_set_vfta_82598 - Set VLAN filter table
|
|
* @hw: pointer to hardware structure
|
|
* @vlan: VLAN id to write to VLAN filter
|
|
* @vind: VMDq output index that maps queue to VLAN id in VFTA
|
|
* @vlan_on: boolean flag to turn on/off VLAN in VFTA
|
|
*
|
|
* Turn on/off specified VLAN in the VLAN filter table.
|
|
**/
|
|
s32 ixgbe_set_vfta_82598(struct ixgbe_hw *hw, u32 vlan, u32 vind,
|
|
bool vlan_on)
|
|
{
|
|
u32 regindex;
|
|
u32 bitindex;
|
|
u32 bits;
|
|
u32 vftabyte;
|
|
|
|
DEBUGFUNC("ixgbe_set_vfta_82598");
|
|
|
|
if (vlan > 4095)
|
|
return IXGBE_ERR_PARAM;
|
|
|
|
/* Determine 32-bit word position in array */
|
|
regindex = (vlan >> 5) & 0x7F; /* upper seven bits */
|
|
|
|
/* Determine the location of the (VMD) queue index */
|
|
vftabyte = ((vlan >> 3) & 0x03); /* bits (4:3) indicating byte array */
|
|
bitindex = (vlan & 0x7) << 2; /* lower 3 bits indicate nibble */
|
|
|
|
/* Set the nibble for VMD queue index */
|
|
bits = IXGBE_READ_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex));
|
|
bits &= (~(0x0F << bitindex));
|
|
bits |= (vind << bitindex);
|
|
IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex), bits);
|
|
|
|
/* Determine the location of the bit for this VLAN id */
|
|
bitindex = vlan & 0x1F; /* lower five bits */
|
|
|
|
bits = IXGBE_READ_REG(hw, IXGBE_VFTA(regindex));
|
|
if (vlan_on)
|
|
/* Turn on this VLAN id */
|
|
bits |= (1 << bitindex);
|
|
else
|
|
/* Turn off this VLAN id */
|
|
bits &= ~(1 << bitindex);
|
|
IXGBE_WRITE_REG(hw, IXGBE_VFTA(regindex), bits);
|
|
|
|
return IXGBE_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_clear_vfta_82598 - Clear VLAN filter table
|
|
* @hw: pointer to hardware structure
|
|
*
|
|
* Clears the VLAN filer table, and the VMDq index associated with the filter
|
|
**/
|
|
static s32 ixgbe_clear_vfta_82598(struct ixgbe_hw *hw)
|
|
{
|
|
u32 offset;
|
|
u32 vlanbyte;
|
|
|
|
DEBUGFUNC("ixgbe_clear_vfta_82598");
|
|
|
|
for (offset = 0; offset < hw->mac.vft_size; offset++)
|
|
IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0);
|
|
|
|
for (vlanbyte = 0; vlanbyte < 4; vlanbyte++)
|
|
for (offset = 0; offset < hw->mac.vft_size; offset++)
|
|
IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vlanbyte, offset),
|
|
0);
|
|
|
|
return IXGBE_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_read_analog_reg8_82598 - Reads 8 bit Atlas analog register
|
|
* @hw: pointer to hardware structure
|
|
* @reg: analog register to read
|
|
* @val: read value
|
|
*
|
|
* Performs read operation to Atlas analog register specified.
|
|
**/
|
|
s32 ixgbe_read_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 *val)
|
|
{
|
|
u32 atlas_ctl;
|
|
|
|
DEBUGFUNC("ixgbe_read_analog_reg8_82598");
|
|
|
|
IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL,
|
|
IXGBE_ATLASCTL_WRITE_CMD | (reg << 8));
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
usec_delay(10);
|
|
atlas_ctl = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);
|
|
*val = (u8)atlas_ctl;
|
|
|
|
return IXGBE_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_write_analog_reg8_82598 - Writes 8 bit Atlas analog register
|
|
* @hw: pointer to hardware structure
|
|
* @reg: atlas register to write
|
|
* @val: value to write
|
|
*
|
|
* Performs write operation to Atlas analog register specified.
|
|
**/
|
|
s32 ixgbe_write_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 val)
|
|
{
|
|
u32 atlas_ctl;
|
|
|
|
DEBUGFUNC("ixgbe_write_analog_reg8_82598");
|
|
|
|
atlas_ctl = (reg << 8) | val;
|
|
IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL, atlas_ctl);
|
|
IXGBE_WRITE_FLUSH(hw);
|
|
usec_delay(10);
|
|
|
|
return IXGBE_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_read_i2c_eeprom_82598 - Reads 8 bit word over I2C interface.
|
|
* @hw: pointer to hardware structure
|
|
* @byte_offset: EEPROM byte offset to read
|
|
* @eeprom_data: value read
|
|
*
|
|
* Performs 8 byte read operation to SFP module's EEPROM over I2C interface.
|
|
**/
|
|
s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
|
|
u8 *eeprom_data)
|
|
{
|
|
s32 status = IXGBE_SUCCESS;
|
|
u16 sfp_addr = 0;
|
|
u16 sfp_data = 0;
|
|
u16 sfp_stat = 0;
|
|
u32 i;
|
|
|
|
DEBUGFUNC("ixgbe_read_i2c_eeprom_82598");
|
|
|
|
if (hw->phy.type == ixgbe_phy_nl) {
|
|
/*
|
|
* NetLogic phy SDA/SCL registers are at addresses 0xC30A to
|
|
* 0xC30D. These registers are used to talk to the SFP+
|
|
* module's EEPROM through the SDA/SCL (I2C) interface.
|
|
*/
|
|
sfp_addr = (IXGBE_I2C_EEPROM_DEV_ADDR << 8) + byte_offset;
|
|
sfp_addr = (sfp_addr | IXGBE_I2C_EEPROM_READ_MASK);
|
|
hw->phy.ops.write_reg(hw,
|
|
IXGBE_MDIO_PMA_PMD_SDA_SCL_ADDR,
|
|
IXGBE_MDIO_PMA_PMD_DEV_TYPE,
|
|
sfp_addr);
|
|
|
|
/* Poll status */
|
|
for (i = 0; i < 100; i++) {
|
|
hw->phy.ops.read_reg(hw,
|
|
IXGBE_MDIO_PMA_PMD_SDA_SCL_STAT,
|
|
IXGBE_MDIO_PMA_PMD_DEV_TYPE,
|
|
&sfp_stat);
|
|
sfp_stat = sfp_stat & IXGBE_I2C_EEPROM_STATUS_MASK;
|
|
if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS)
|
|
break;
|
|
msec_delay(10);
|
|
}
|
|
|
|
if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_PASS) {
|
|
DEBUGOUT("EEPROM read did not pass.\n");
|
|
status = IXGBE_ERR_SFP_NOT_PRESENT;
|
|
goto out;
|
|
}
|
|
|
|
/* Read data */
|
|
hw->phy.ops.read_reg(hw, IXGBE_MDIO_PMA_PMD_SDA_SCL_DATA,
|
|
IXGBE_MDIO_PMA_PMD_DEV_TYPE, &sfp_data);
|
|
|
|
*eeprom_data = (u8)(sfp_data >> 8);
|
|
} else {
|
|
status = IXGBE_ERR_PHY;
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_get_supported_physical_layer_82598 - Returns physical layer type
|
|
* @hw: pointer to hardware structure
|
|
*
|
|
* Determines physical layer capabilities of the current configuration.
|
|
**/
|
|
u32 ixgbe_get_supported_physical_layer_82598(struct ixgbe_hw *hw)
|
|
{
|
|
u32 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
|
|
u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
|
|
u32 pma_pmd_10g = autoc & IXGBE_AUTOC_10G_PMA_PMD_MASK;
|
|
u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
|
|
u16 ext_ability = 0;
|
|
|
|
DEBUGFUNC("ixgbe_get_supported_physical_layer_82598");
|
|
|
|
hw->phy.ops.identify(hw);
|
|
|
|
/* Copper PHY must be checked before AUTOC LMS to determine correct
|
|
* physical layer because 10GBase-T PHYs use LMS = KX4/KX */
|
|
if (hw->phy.type == ixgbe_phy_tn ||
|
|
hw->phy.type == ixgbe_phy_cu_unknown) {
|
|
hw->phy.ops.read_reg(hw, IXGBE_MDIO_PHY_EXT_ABILITY,
|
|
IXGBE_MDIO_PMA_PMD_DEV_TYPE, &ext_ability);
|
|
if (ext_ability & IXGBE_MDIO_PHY_10GBASET_ABILITY)
|
|
physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T;
|
|
if (ext_ability & IXGBE_MDIO_PHY_1000BASET_ABILITY)
|
|
physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T;
|
|
if (ext_ability & IXGBE_MDIO_PHY_100BASETX_ABILITY)
|
|
physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX;
|
|
goto out;
|
|
}
|
|
|
|
switch (autoc & IXGBE_AUTOC_LMS_MASK) {
|
|
case IXGBE_AUTOC_LMS_1G_AN:
|
|
case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
|
|
if (pma_pmd_1g == IXGBE_AUTOC_1G_KX)
|
|
physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_KX;
|
|
else
|
|
physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_BX;
|
|
break;
|
|
case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
|
|
if (pma_pmd_10g == IXGBE_AUTOC_10G_CX4)
|
|
physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;
|
|
else if (pma_pmd_10g == IXGBE_AUTOC_10G_KX4)
|
|
physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
|
|
else /* XAUI */
|
|
physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
|
|
break;
|
|
case IXGBE_AUTOC_LMS_KX4_AN:
|
|
case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
|
|
if (autoc & IXGBE_AUTOC_KX_SUPP)
|
|
physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_KX;
|
|
if (autoc & IXGBE_AUTOC_KX4_SUPP)
|
|
physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (hw->phy.type == ixgbe_phy_nl) {
|
|
hw->phy.ops.identify_sfp(hw);
|
|
|
|
switch (hw->phy.sfp_type) {
|
|
case ixgbe_sfp_type_da_cu:
|
|
physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
|
|
break;
|
|
case ixgbe_sfp_type_sr:
|
|
physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
|
|
break;
|
|
case ixgbe_sfp_type_lr:
|
|
physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
|
|
break;
|
|
default:
|
|
physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
|
|
break;
|
|
}
|
|
}
|
|
|
|
switch (hw->device_id) {
|
|
case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
|
|
physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
|
|
break;
|
|
case IXGBE_DEV_ID_82598AF_DUAL_PORT:
|
|
case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
|
|
case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
|
|
physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
|
|
break;
|
|
case IXGBE_DEV_ID_82598EB_XF_LR:
|
|
physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
out:
|
|
return physical_layer;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_set_lan_id_multi_port_pcie_82598 - Set LAN id for PCIe multiple
|
|
* port devices.
|
|
* @hw: pointer to the HW structure
|
|
*
|
|
* Calls common function and corrects issue with some single port devices
|
|
* that enable LAN1 but not LAN0.
|
|
**/
|
|
void ixgbe_set_lan_id_multi_port_pcie_82598(struct ixgbe_hw *hw)
|
|
{
|
|
struct ixgbe_bus_info *bus = &hw->bus;
|
|
u16 pci_gen, pci_ctrl2;
|
|
|
|
DEBUGFUNC("ixgbe_set_lan_id_multi_port_pcie_82598");
|
|
|
|
ixgbe_set_lan_id_multi_port_pcie(hw);
|
|
|
|
/* check if LAN0 is disabled */
|
|
hw->eeprom.ops.read(hw, IXGBE_PCIE_GENERAL_PTR, &pci_gen);
|
|
if ((pci_gen != 0) && (pci_gen != 0xFFFF)) {
|
|
|
|
hw->eeprom.ops.read(hw, pci_gen + IXGBE_PCIE_CTRL2, &pci_ctrl2);
|
|
|
|
/* if LAN0 is completely disabled force function to 0 */
|
|
if ((pci_ctrl2 & IXGBE_PCIE_CTRL2_LAN_DISABLE) &&
|
|
!(pci_ctrl2 & IXGBE_PCIE_CTRL2_DISABLE_SELECT) &&
|
|
!(pci_ctrl2 & IXGBE_PCIE_CTRL2_DUMMY_ENABLE)) {
|
|
|
|
bus->func = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* ixgbe_validate_link_ready - Function looks for phy link
|
|
* @hw: pointer to hardware structure
|
|
*
|
|
* Function indicates success when phy link is available. If phy is not ready
|
|
* within 5 seconds of MAC indicating link, the function returns error.
|
|
**/
|
|
static s32 ixgbe_validate_link_ready(struct ixgbe_hw *hw)
|
|
{
|
|
u32 timeout;
|
|
u16 an_reg;
|
|
|
|
if (hw->device_id != IXGBE_DEV_ID_82598AT2)
|
|
return IXGBE_SUCCESS;
|
|
|
|
for (timeout = 0;
|
|
timeout < IXGBE_VALIDATE_LINK_READY_TIMEOUT; timeout++) {
|
|
hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_STATUS,
|
|
IXGBE_MDIO_AUTO_NEG_DEV_TYPE, &an_reg);
|
|
|
|
if ((an_reg & IXGBE_MII_AUTONEG_COMPLETE) &&
|
|
(an_reg & IXGBE_MII_AUTONEG_LINK_UP))
|
|
break;
|
|
|
|
msec_delay(100);
|
|
}
|
|
|
|
if (timeout == IXGBE_VALIDATE_LINK_READY_TIMEOUT) {
|
|
DEBUGOUT("Link was indicated but link is down\n");
|
|
return IXGBE_ERR_LINK_SETUP;
|
|
}
|
|
|
|
return IXGBE_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_enable_relaxed_ordering_82598 - enable relaxed ordering
|
|
* @hw: pointer to hardware structure
|
|
*
|
|
**/
|
|
void ixgbe_enable_relaxed_ordering_82598(struct ixgbe_hw *hw)
|
|
{
|
|
u32 regval;
|
|
u32 i;
|
|
|
|
DEBUGFUNC("ixgbe_enable_relaxed_ordering_82598");
|
|
|
|
/* Enable relaxed ordering */
|
|
for (i = 0; ((i < hw->mac.max_tx_queues) &&
|
|
(i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
|
|
regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(i));
|
|
regval |= IXGBE_DCA_TXCTRL_TX_WB_RO_EN;
|
|
IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(i), regval);
|
|
}
|
|
|
|
for (i = 0; ((i < hw->mac.max_rx_queues) &&
|
|
(i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
|
|
regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
|
|
regval |= (IXGBE_DCA_RXCTRL_DESC_WRO_EN |
|
|
IXGBE_DCA_RXCTRL_DESC_HSRO_EN);
|
|
IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval);
|
|
}
|
|
|
|
}
|