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/* $OpenBSD: igc_base.c,v 1.2 2024/05/24 06:02:57 jsg Exp $ */
/*-
* Copyright 2021 Intel Corp
* Copyright 2021 Rubicon Communications, LLC (Netgate)
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <dev/pci/igc_hw.h>
#include <dev/pci/if_igc.h>
#include <dev/pci/igc_mac.h>
#include <dev/pci/igc_base.h>
/**
* igc_acquire_phy_base - Acquire rights to access PHY
* @hw: pointer to the HW structure
*
* Acquire access rights to the correct PHY.
**/
int
igc_acquire_phy_base(struct igc_hw *hw)
{
uint16_t mask = IGC_SWFW_PHY0_SM;
DEBUGFUNC("igc_acquire_phy_base");
if (hw->bus.func == IGC_FUNC_1)
mask = IGC_SWFW_PHY1_SM;
return hw->mac.ops.acquire_swfw_sync(hw, mask);
}
/**
* igc_release_phy_base - Release rights to access PHY
* @hw: pointer to the HW structure
*
* A wrapper to release access rights to the correct PHY.
**/
void
igc_release_phy_base(struct igc_hw *hw)
{
uint16_t mask = IGC_SWFW_PHY0_SM;
DEBUGFUNC("igc_release_phy_base");
if (hw->bus.func == IGC_FUNC_1)
mask = IGC_SWFW_PHY1_SM;
hw->mac.ops.release_swfw_sync(hw, mask);
}
/**
* igc_init_hw_base - Initialize hardware
* @hw: pointer to the HW structure
*
* This inits the hardware readying it for operation.
**/
int
igc_init_hw_base(struct igc_hw *hw)
{
struct igc_mac_info *mac = &hw->mac;
uint16_t i, rar_count = mac->rar_entry_count;
int ret_val;
DEBUGFUNC("igc_init_hw_base");
/* Setup the receive address */
igc_init_rx_addrs_generic(hw, rar_count);
/* Zero out the Multicast HASH table */
DEBUGOUT("Zeroing the MTA\n");
for (i = 0; i < mac->mta_reg_count; i++)
IGC_WRITE_REG_ARRAY(hw, IGC_MTA, i, 0);
/* Zero out the Unicast HASH table */
DEBUGOUT("Zeroing the UTA\n");
for (i = 0; i < mac->uta_reg_count; i++)
IGC_WRITE_REG_ARRAY(hw, IGC_UTA, i, 0);
/* Setup link and flow control */
ret_val = mac->ops.setup_link(hw);
/*
* 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.
*/
igc_clear_hw_cntrs_base_generic(hw);
return ret_val;
}
/**
* igc_power_down_phy_copper_base - 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.
**/
void
igc_power_down_phy_copper_base(struct igc_hw *hw)
{
struct igc_phy_info *phy = &hw->phy;
if (!(phy->ops.check_reset_block))
return;
/* If the management interface is not enabled, then power down */
if (phy->ops.check_reset_block(hw))
igc_power_down_phy_copper(hw);
return;
}
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