1 /*******************************************************************************
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2014 Intel Corporation.
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.
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
15 * You should have received a copy of the GNU General Public License along
16 * with this program. If not, see <http://www.gnu.org/licenses/>.
18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
21 * Contact Information:
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 ******************************************************************************/
27 #include "i40e_diag.h"
28 #include "i40e_prototype.h"
31 * i40e_diag_reg_pattern_test
32 * @hw: pointer to the hw struct
33 * @reg: reg to be tested
34 * @mask: bits to be touched
36 static i40e_status i40e_diag_reg_pattern_test(struct i40e_hw *hw,
39 static const u32 patterns[] = {
40 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
42 u32 pat, val, orig_val;
45 orig_val = rd32(hw, reg);
46 for (i = 0; i < ARRAY_SIZE(patterns); i++) {
48 wr32(hw, reg, (pat & mask));
50 if ((val & mask) != (pat & mask)) {
51 i40e_debug(hw, I40E_DEBUG_DIAG,
52 "%s: reg pattern test failed - reg 0x%08x pat 0x%08x val 0x%08x\n",
53 __func__, reg, pat, val);
54 return I40E_ERR_DIAG_TEST_FAILED;
58 wr32(hw, reg, orig_val);
60 if (val != orig_val) {
61 i40e_debug(hw, I40E_DEBUG_DIAG,
62 "%s: reg restore test failed - reg 0x%08x orig_val 0x%08x val 0x%08x\n",
63 __func__, reg, orig_val, val);
64 return I40E_ERR_DIAG_TEST_FAILED;
70 struct i40e_diag_reg_test_info i40e_reg_list[] = {
71 /* offset mask elements stride */
72 {I40E_QTX_CTL(0), 0x0000FFBF, 1,
73 I40E_QTX_CTL(1) - I40E_QTX_CTL(0)},
74 {I40E_PFINT_ITR0(0), 0x00000FFF, 3,
75 I40E_PFINT_ITR0(1) - I40E_PFINT_ITR0(0)},
76 {I40E_PFINT_ITRN(0, 0), 0x00000FFF, 1,
77 I40E_PFINT_ITRN(0, 1) - I40E_PFINT_ITRN(0, 0)},
78 {I40E_PFINT_ITRN(1, 0), 0x00000FFF, 1,
79 I40E_PFINT_ITRN(1, 1) - I40E_PFINT_ITRN(1, 0)},
80 {I40E_PFINT_ITRN(2, 0), 0x00000FFF, 1,
81 I40E_PFINT_ITRN(2, 1) - I40E_PFINT_ITRN(2, 0)},
82 {I40E_PFINT_STAT_CTL0, 0x0000000C, 1, 0},
83 {I40E_PFINT_LNKLST0, 0x00001FFF, 1, 0},
84 {I40E_PFINT_LNKLSTN(0), 0x000007FF, 1,
85 I40E_PFINT_LNKLSTN(1) - I40E_PFINT_LNKLSTN(0)},
86 {I40E_QINT_TQCTL(0), 0x000000FF, 1,
87 I40E_QINT_TQCTL(1) - I40E_QINT_TQCTL(0)},
88 {I40E_QINT_RQCTL(0), 0x000000FF, 1,
89 I40E_QINT_RQCTL(1) - I40E_QINT_RQCTL(0)},
90 {I40E_PFINT_ICR0_ENA, 0xF7F20000, 1, 0},
96 * @hw: pointer to the hw struct
98 * Perform registers diagnostic test
100 i40e_status i40e_diag_reg_test(struct i40e_hw *hw)
102 i40e_status ret_code = 0;
106 for (i = 0; i40e_reg_list[i].offset != 0 &&
109 /* set actual reg range for dynamically allocated resources */
110 if (i40e_reg_list[i].offset == I40E_QTX_CTL(0) &&
111 hw->func_caps.num_tx_qp != 0)
112 i40e_reg_list[i].elements = hw->func_caps.num_tx_qp;
113 if ((i40e_reg_list[i].offset == I40E_PFINT_ITRN(0, 0) ||
114 i40e_reg_list[i].offset == I40E_PFINT_ITRN(1, 0) ||
115 i40e_reg_list[i].offset == I40E_PFINT_ITRN(2, 0) ||
116 i40e_reg_list[i].offset == I40E_QINT_TQCTL(0) ||
117 i40e_reg_list[i].offset == I40E_QINT_RQCTL(0)) &&
118 hw->func_caps.num_msix_vectors != 0)
119 i40e_reg_list[i].elements =
120 hw->func_caps.num_msix_vectors - 1;
122 /* test register access */
123 mask = i40e_reg_list[i].mask;
124 for (j = 0; j < i40e_reg_list[i].elements && !ret_code; j++) {
125 reg = i40e_reg_list[i].offset +
126 (j * i40e_reg_list[i].stride);
127 ret_code = i40e_diag_reg_pattern_test(hw, reg, mask);
135 * i40e_diag_eeprom_test
136 * @hw: pointer to the hw struct
138 * Perform EEPROM diagnostic test
140 i40e_status i40e_diag_eeprom_test(struct i40e_hw *hw)
142 i40e_status ret_code;
145 /* read NVM control word and if NVM valid, validate EEPROM checksum*/
146 ret_code = i40e_read_nvm_word(hw, I40E_SR_NVM_CONTROL_WORD, ®_val);
148 ((reg_val & I40E_SR_CONTROL_WORD_1_MASK) ==
149 BIT(I40E_SR_CONTROL_WORD_1_SHIFT)))
150 return i40e_validate_nvm_checksum(hw, NULL);
152 return I40E_ERR_DIAG_TEST_FAILED;