1/****************************************************************************** 2 3 Copyright (c) 2001-2017, Intel Corporation 4 All rights reserved. 5 6 Redistribution and use in source and binary forms, with or without 7 modification, are permitted provided that the following conditions are met: 8 9 1. Redistributions of source code must retain the above copyright notice, 10 this list of conditions and the following disclaimer. 11 12 2. Redistributions in binary form must reproduce the above copyright 13 notice, this list of conditions and the following disclaimer in the 14 documentation and/or other materials provided with the distribution. 15 16 3. Neither the name of the Intel Corporation nor the names of its 17 contributors may be used to endorse or promote products derived from 18 this software without specific prior written permission. 19 20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 21 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 24 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 POSSIBILITY OF SUCH DAMAGE. 31 32******************************************************************************/ 33/*$FreeBSD: stable/10/sys/dev/ixgbe/ixgbe_osdep.c 315333 2017-03-15 21:20:17Z erj $*/ 34 35#include "ixgbe.h" 36 37inline u16 38ixgbe_read_pci_cfg(struct ixgbe_hw *hw, u32 reg) 39{ 40 return pci_read_config(((struct adapter *)hw->back)->dev, reg, 2); 41} 42 43inline void 44ixgbe_write_pci_cfg(struct ixgbe_hw *hw, u32 reg, u16 value) 45{ 46 pci_write_config(((struct adapter *)hw->back)->dev, reg, value, 2); 47} 48 49inline u32 50ixgbe_read_reg(struct ixgbe_hw *hw, u32 reg) 51{ 52 struct adapter *adapter = (struct adapter *)hw->back; 53 u32 retval; 54 u8 i; 55 56 retval = bus_space_read_4(adapter->osdep.mem_bus_space_tag, 57 adapter->osdep.mem_bus_space_handle, reg); 58 59 /* Normal... */ 60 if ((retval != 0xDEADBEEF) || 61 !(hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_SGMII_ENABLE)) 62 return retval; 63 64 /* Unusual... */ 65 66 /* 67 * 10/100 Mb mode has a quirk where it's possible the previous 68 * write to the Phy hasn't completed. So we keep trying. 69 */ 70 for (i = 100; retval; i--) { 71 if (!i) { 72 device_printf(adapter->dev, "Register (0x%08X) writes did not complete: 0x%08X\n", 73 reg, retval); 74 break; 75 } 76 retval = bus_space_read_4(adapter->osdep.mem_bus_space_tag, 77 adapter->osdep.mem_bus_space_handle, IXGBE_MAC_SGMII_BUSY); 78 } 79 80 for (i = 10; retval == 0xDEADBEEF; i--) { 81 if (!i) { 82 device_printf(adapter->dev, 83 "Failed to read register 0x%08X.\n", reg); 84 break; 85 } 86 retval = bus_space_read_4(adapter->osdep.mem_bus_space_tag, 87 adapter->osdep.mem_bus_space_handle, reg); 88 } 89 90 return retval; 91} 92 93inline void 94ixgbe_write_reg(struct ixgbe_hw *hw, u32 reg, u32 val) 95{ 96 bus_space_write_4(((struct adapter *)hw->back)->osdep.mem_bus_space_tag, 97 ((struct adapter *)hw->back)->osdep.mem_bus_space_handle, 98 reg, val); 99} 100 101inline u32 102ixgbe_read_reg_array(struct ixgbe_hw *hw, u32 reg, u32 offset) 103{ 104 return bus_space_read_4(((struct adapter *)hw->back)->osdep.mem_bus_space_tag, 105 ((struct adapter *)hw->back)->osdep.mem_bus_space_handle, 106 reg + (offset << 2)); 107} 108 109inline void 110ixgbe_write_reg_array(struct ixgbe_hw *hw, u32 reg, u32 offset, u32 val) 111{ 112 bus_space_write_4(((struct adapter *)hw->back)->osdep.mem_bus_space_tag, 113 ((struct adapter *)hw->back)->osdep.mem_bus_space_handle, 114 reg + (offset << 2), val); 115} 116