Merge branch 'acpi-hotplug'
[linux-2.6-block.git] / drivers / net / ethernet / intel / i40e / i40e_diag.c
CommitLineData
56a62fc8
JB
1/*******************************************************************************
2 *
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 Intel Corporation.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
14 *
15 * You should have received a copy of the GNU General Public License along with
16 * this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * The full GNU General Public License is included in this distribution in
20 * the file called "COPYING".
21 *
22 * Contact Information:
23 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
24 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 *
26 ******************************************************************************/
27
28#include "i40e_diag.h"
29#include "i40e_prototype.h"
30
31/**
32 * i40e_diag_reg_pattern_test
33 * @hw: pointer to the hw struct
34 * @reg: reg to be tested
35 * @mask: bits to be touched
36 **/
37static i40e_status i40e_diag_reg_pattern_test(struct i40e_hw *hw,
38 u32 reg, u32 mask)
39{
40 const u32 patterns[] = {0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};
41 u32 pat, val, orig_val;
42 int i;
43
44 orig_val = rd32(hw, reg);
45 for (i = 0; i < ARRAY_SIZE(patterns); i++) {
46 pat = patterns[i];
47 wr32(hw, reg, (pat & mask));
48 val = rd32(hw, reg);
49 if ((val & mask) != (pat & mask)) {
50 i40e_debug(hw, I40E_DEBUG_DIAG,
51 "%s: reg pattern test failed - reg 0x%08x pat 0x%08x val 0x%08x\n",
52 __func__, reg, pat, val);
53 return I40E_ERR_DIAG_TEST_FAILED;
54 }
55 }
56
57 wr32(hw, reg, orig_val);
58 val = rd32(hw, reg);
59 if (val != orig_val) {
60 i40e_debug(hw, I40E_DEBUG_DIAG,
61 "%s: reg restore test failed - reg 0x%08x orig_val 0x%08x val 0x%08x\n",
62 __func__, reg, orig_val, val);
63 return I40E_ERR_DIAG_TEST_FAILED;
64 }
65
66 return 0;
67}
68
69struct i40e_diag_reg_test_info i40e_reg_list[] = {
70 /* offset mask elements stride */
71 {I40E_QTX_CTL(0), 0x0000FFBF, 64, I40E_QTX_CTL(1) - I40E_QTX_CTL(0)},
72 {I40E_PFINT_ITR0(0), 0x00000FFF, 3, I40E_PFINT_ITR0(1) - I40E_PFINT_ITR0(0)},
73 {I40E_PFINT_ITRN(0, 0), 0x00000FFF, 64, I40E_PFINT_ITRN(0, 1) - I40E_PFINT_ITRN(0, 0)},
74 {I40E_PFINT_ITRN(1, 0), 0x00000FFF, 64, I40E_PFINT_ITRN(1, 1) - I40E_PFINT_ITRN(1, 0)},
75 {I40E_PFINT_ITRN(2, 0), 0x00000FFF, 64, I40E_PFINT_ITRN(2, 1) - I40E_PFINT_ITRN(2, 0)},
76 {I40E_PFINT_STAT_CTL0, 0x0000000C, 1, 0},
77 {I40E_PFINT_LNKLST0, 0x00001FFF, 1, 0},
78 {I40E_PFINT_LNKLSTN(0), 0x000007FF, 511, I40E_PFINT_LNKLSTN(1) - I40E_PFINT_LNKLSTN(0)},
79 {I40E_QINT_TQCTL(0), 0x000000FF, I40E_QINT_TQCTL_MAX_INDEX + 1, I40E_QINT_TQCTL(1) - I40E_QINT_TQCTL(0)},
80 {I40E_QINT_RQCTL(0), 0x000000FF, I40E_QINT_RQCTL_MAX_INDEX + 1, I40E_QINT_RQCTL(1) - I40E_QINT_RQCTL(0)},
81 {I40E_PFINT_ICR0_ENA, 0xF7F20000, 1, 0},
82 { 0 }
83};
84
85/**
86 * i40e_diag_reg_test
87 * @hw: pointer to the hw struct
88 *
89 * Perform registers diagnostic test
90 **/
91i40e_status i40e_diag_reg_test(struct i40e_hw *hw)
92{
93 i40e_status ret_code = 0;
94 u32 reg, mask;
95 u32 i, j;
96
97 for (i = 0; (i40e_reg_list[i].offset != 0) && !ret_code; i++) {
98 mask = i40e_reg_list[i].mask;
99 for (j = 0; (j < i40e_reg_list[i].elements) && !ret_code; j++) {
100 reg = i40e_reg_list[i].offset +
101 (j * i40e_reg_list[i].stride);
102 ret_code = i40e_diag_reg_pattern_test(hw, reg, mask);
103 }
104 }
105
106 return ret_code;
107}
108
109/**
110 * i40e_diag_eeprom_test
111 * @hw: pointer to the hw struct
112 *
113 * Perform EEPROM diagnostic test
114 **/
115i40e_status i40e_diag_eeprom_test(struct i40e_hw *hw)
116{
117 i40e_status ret_code;
118 u16 reg_val;
119
120 /* read NVM control word and if NVM valid, validate EEPROM checksum*/
121 ret_code = i40e_read_nvm_word(hw, I40E_SR_NVM_CONTROL_WORD, &reg_val);
122 if ((!ret_code) &&
123 ((reg_val & I40E_SR_CONTROL_WORD_1_MASK) ==
124 (0x01 << I40E_SR_CONTROL_WORD_1_SHIFT))) {
125 ret_code = i40e_validate_nvm_checksum(hw, NULL);
126 } else {
127 ret_code = I40E_ERR_DIAG_TEST_FAILED;
128 }
129
130 return ret_code;
131}