ixgbe_osdep.c revision 1.5 
1/* $NetBSD: ixgbe_osdep.c,v 1.5 2019/12/16 02:50:54 msaitoh Exp $ */
2
3/******************************************************************************
4
5  Copyright (c) 2001-2017, Intel Corporation
6  All rights reserved.
7
8  Redistribution and use in source and binary forms, with or without
9  modification, are permitted provided that the following conditions are met:
10
11   1. Redistributions of source code must retain the above copyright notice,
12      this list of conditions and the following disclaimer.
13
14   2. Redistributions in binary form must reproduce the above copyright
15      notice, this list of conditions and the following disclaimer in the
16      documentation and/or other materials provided with the distribution.
17
18   3. Neither the name of the Intel Corporation nor the names of its
19      contributors may be used to endorse or promote products derived from
20      this software without specific prior written permission.
21
22  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
23  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
26  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32  POSSIBILITY OF SUCH DAMAGE.
33
34******************************************************************************/
35/*$FreeBSD: head/sys/dev/ixgbe/ixgbe_osdep.c 327031 2017-12-20 18:15:06Z erj $*/
36
37#include "ixgbe_osdep.h"
38#include "ixgbe.h"
39
40inline device_t
41ixgbe_dev_from_hw(struct ixgbe_hw *hw)
42{
43	return ((struct adapter *)hw->back)->dev;
44}
45
46u16
47ixgbe_read_pci_cfg(struct ixgbe_hw *hw, u32 reg)
48{
49	pci_chipset_tag_t  pc = hw->back->osdep.pc;
50	pcitag_t           tag = hw->back->osdep.tag;
51
52	switch (reg % 4) {
53	case 0:
54		return pci_conf_read(pc, tag, reg) & __BITS(15, 0);
55	case 2:
56		return __SHIFTOUT(pci_conf_read(pc, tag, reg - 2),
57		    __BITS(31, 16));
58	default:
59		panic("%s: invalid register (%" PRIx32, __func__, reg);
60		break;
61	}
62}
63
64void
65ixgbe_write_pci_cfg(struct ixgbe_hw *hw, u32 reg, u16 value)
66{
67	pci_chipset_tag_t  pc = hw->back->osdep.pc;
68	pcitag_t           tag = hw->back->osdep.tag;
69	pcireg_t old;
70
71	switch (reg % 4) {
72	case 0:
73		old = pci_conf_read(pc, tag, reg) & __BITS(31, 16);
74		pci_conf_write(pc, tag, reg, value | old);
75		break;
76	case 2:
77		old = pci_conf_read(pc, tag, reg - 2) & __BITS(15, 0);
78		pci_conf_write(pc, tag, reg - 2,
79		    __SHIFTIN(value, __BITS(31, 16)) | old);
80		break;
81	default:
82		panic("%s: invalid register (%" PRIx32, __func__, reg);
83		break;
84	}
85
86	return;
87}
88
89inline u32
90ixgbe_read_reg(struct ixgbe_hw *hw, u32 reg)
91{
92	return bus_space_read_4(((struct adapter *)hw->back)->osdep.mem_bus_space_tag,
93	    ((struct adapter *)hw->back)->osdep.mem_bus_space_handle, reg);
94}
95
96inline void
97ixgbe_write_reg(struct ixgbe_hw *hw, u32 reg, u32 val)
98{
99	bus_space_write_4(((struct adapter *)hw->back)->osdep.mem_bus_space_tag,
100	    ((struct adapter *)hw->back)->osdep.mem_bus_space_handle,
101	    reg, val);
102}
103
104inline u32
105ixgbe_read_reg_array(struct ixgbe_hw *hw, u32 reg, u32 offset)
106{
107	return bus_space_read_4(((struct adapter *)hw->back)->osdep.mem_bus_space_tag,
108	    ((struct adapter *)hw->back)->osdep.mem_bus_space_handle,
109	    reg + (offset << 2));
110}
111
112inline void
113ixgbe_write_reg_array(struct ixgbe_hw *hw, u32 reg, u32 offset, u32 val)
114{
115	bus_space_write_4(((struct adapter *)hw->back)->osdep.mem_bus_space_tag,
116	    ((struct adapter *)hw->back)->osdep.mem_bus_space_handle,
117	    reg + (offset << 2), val);
118}
119