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Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e_diag.c')
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_diag.c131
1 files changed, 131 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_diag.c b/drivers/net/ethernet/intel/i40e/i40e_diag.c
new file mode 100644
index 000000000..97fe1787a
--- /dev/null
+++ b/drivers/net/ethernet/intel/i40e/i40e_diag.c
@@ -0,0 +1,131 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 2013 - 2018 Intel Corporation. */
+
+#include "i40e_diag.h"
+#include "i40e_prototype.h"
+
+/**
+ * i40e_diag_reg_pattern_test
+ * @hw: pointer to the hw struct
+ * @reg: reg to be tested
+ * @mask: bits to be touched
+ **/
+static int i40e_diag_reg_pattern_test(struct i40e_hw *hw,
+ u32 reg, u32 mask)
+{
+ static const u32 patterns[] = {
+ 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
+ };
+ u32 pat, val, orig_val;
+ int i;
+
+ orig_val = rd32(hw, reg);
+ for (i = 0; i < ARRAY_SIZE(patterns); i++) {
+ pat = patterns[i];
+ wr32(hw, reg, (pat & mask));
+ val = rd32(hw, reg);
+ if ((val & mask) != (pat & mask)) {
+ i40e_debug(hw, I40E_DEBUG_DIAG,
+ "%s: reg pattern test failed - reg 0x%08x pat 0x%08x val 0x%08x\n",
+ __func__, reg, pat, val);
+ return I40E_ERR_DIAG_TEST_FAILED;
+ }
+ }
+
+ wr32(hw, reg, orig_val);
+ val = rd32(hw, reg);
+ if (val != orig_val) {
+ i40e_debug(hw, I40E_DEBUG_DIAG,
+ "%s: reg restore test failed - reg 0x%08x orig_val 0x%08x val 0x%08x\n",
+ __func__, reg, orig_val, val);
+ return I40E_ERR_DIAG_TEST_FAILED;
+ }
+
+ return 0;
+}
+
+const struct i40e_diag_reg_test_info i40e_reg_list[] = {
+ /* offset mask elements stride */
+ {I40E_QTX_CTL(0), 0x0000FFBF, 1,
+ I40E_QTX_CTL(1) - I40E_QTX_CTL(0)},
+ {I40E_PFINT_ITR0(0), 0x00000FFF, 3,
+ I40E_PFINT_ITR0(1) - I40E_PFINT_ITR0(0)},
+ {I40E_PFINT_ITRN(0, 0), 0x00000FFF, 1,
+ I40E_PFINT_ITRN(0, 1) - I40E_PFINT_ITRN(0, 0)},
+ {I40E_PFINT_ITRN(1, 0), 0x00000FFF, 1,
+ I40E_PFINT_ITRN(1, 1) - I40E_PFINT_ITRN(1, 0)},
+ {I40E_PFINT_ITRN(2, 0), 0x00000FFF, 1,
+ I40E_PFINT_ITRN(2, 1) - I40E_PFINT_ITRN(2, 0)},
+ {I40E_PFINT_STAT_CTL0, 0x0000000C, 1, 0},
+ {I40E_PFINT_LNKLST0, 0x00001FFF, 1, 0},
+ {I40E_PFINT_LNKLSTN(0), 0x000007FF, 1,
+ I40E_PFINT_LNKLSTN(1) - I40E_PFINT_LNKLSTN(0)},
+ {I40E_QINT_TQCTL(0), 0x000000FF, 1,
+ I40E_QINT_TQCTL(1) - I40E_QINT_TQCTL(0)},
+ {I40E_QINT_RQCTL(0), 0x000000FF, 1,
+ I40E_QINT_RQCTL(1) - I40E_QINT_RQCTL(0)},
+ {I40E_PFINT_ICR0_ENA, 0xF7F20000, 1, 0},
+ { 0 }
+};
+
+/**
+ * i40e_diag_reg_test
+ * @hw: pointer to the hw struct
+ *
+ * Perform registers diagnostic test
+ **/
+int i40e_diag_reg_test(struct i40e_hw *hw)
+{
+ int ret_code = 0;
+ u32 reg, mask;
+ u32 elements;
+ u32 i, j;
+
+ for (i = 0; i40e_reg_list[i].offset != 0 &&
+ !ret_code; i++) {
+
+ elements = i40e_reg_list[i].elements;
+ /* set actual reg range for dynamically allocated resources */
+ if (i40e_reg_list[i].offset == I40E_QTX_CTL(0) &&
+ hw->func_caps.num_tx_qp != 0)
+ elements = hw->func_caps.num_tx_qp;
+ if ((i40e_reg_list[i].offset == I40E_PFINT_ITRN(0, 0) ||
+ i40e_reg_list[i].offset == I40E_PFINT_ITRN(1, 0) ||
+ i40e_reg_list[i].offset == I40E_PFINT_ITRN(2, 0) ||
+ i40e_reg_list[i].offset == I40E_QINT_TQCTL(0) ||
+ i40e_reg_list[i].offset == I40E_QINT_RQCTL(0)) &&
+ hw->func_caps.num_msix_vectors != 0)
+ elements = hw->func_caps.num_msix_vectors - 1;
+
+ /* test register access */
+ mask = i40e_reg_list[i].mask;
+ for (j = 0; j < elements && !ret_code; j++) {
+ reg = i40e_reg_list[i].offset +
+ (j * i40e_reg_list[i].stride);
+ ret_code = i40e_diag_reg_pattern_test(hw, reg, mask);
+ }
+ }
+
+ return ret_code;
+}
+
+/**
+ * i40e_diag_eeprom_test
+ * @hw: pointer to the hw struct
+ *
+ * Perform EEPROM diagnostic test
+ **/
+int i40e_diag_eeprom_test(struct i40e_hw *hw)
+{
+ int ret_code;
+ u16 reg_val;
+
+ /* read NVM control word and if NVM valid, validate EEPROM checksum*/
+ ret_code = i40e_read_nvm_word(hw, I40E_SR_NVM_CONTROL_WORD, &reg_val);
+ if (!ret_code &&
+ ((reg_val & I40E_SR_CONTROL_WORD_1_MASK) ==
+ BIT(I40E_SR_CONTROL_WORD_1_SHIFT)))
+ return i40e_validate_nvm_checksum(hw, NULL);
+ else
+ return I40E_ERR_DIAG_TEST_FAILED;
+}