Add support to dump edc bist status for ECC data errors
Signed-off-by: Hariprasad Shenai <haripra...@chelsio.com>
---
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 39 ++++++++++++++++++++++++++++
drivers/net/ethernet/chelsio/cxgb4/t4_regs.h | 5 ++--
2 files changed, 42 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 800bd48..b193295 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -345,6 +345,43 @@ int t4_wr_mbox_meat(struct adapter *adap, int mbox, const
void *cmd, int size,
FW_CMD_MAX_TIMEOUT);
}
+static int t4_edc_err_read(struct adapter *adap, int idx)
+{
+ u32 edc_ecc_err_addr_reg;
+ u32 rdata_reg;
+
+ if (is_t4(adap->params.chip)) {
+ CH_WARN(adap, "%s: T4 NOT supported.\n", __func__);
+ return 0;
+ }
+ if (idx != 0 && idx != 1) {
+ CH_WARN(adap, "%s: idx %d NOT supported.\n", __func__, idx);
+ return 0;
+ }
+
+ edc_ecc_err_addr_reg = EDC_T5_REG(EDC_H_ECC_ERR_ADDR_A, idx);
+ rdata_reg = EDC_T5_REG(EDC_H_BIST_STATUS_RDATA_A, idx);
+
+ CH_WARN(adap,
+ "edc%d err addr 0x%x: 0x%x.\n",
+ idx, edc_ecc_err_addr_reg,
+ t4_read_reg(adap, edc_ecc_err_addr_reg));
+ CH_WARN(adap,
+ "bist: 0x%x, status %llx %llx %llx %llx %llx %llx %llx %llx
%llx.\n",
+ rdata_reg,
+ (unsigned long long)t4_read_reg64(adap, rdata_reg),
+ (unsigned long long)t4_read_reg64(adap, rdata_reg + 8),
+ (unsigned long long)t4_read_reg64(adap, rdata_reg + 16),
+ (unsigned long long)t4_read_reg64(adap, rdata_reg + 24),
+ (unsigned long long)t4_read_reg64(adap, rdata_reg + 32),
+ (unsigned long long)t4_read_reg64(adap, rdata_reg + 40),
+ (unsigned long long)t4_read_reg64(adap, rdata_reg + 48),
+ (unsigned long long)t4_read_reg64(adap, rdata_reg + 56),
+ (unsigned long long)t4_read_reg64(adap, rdata_reg + 64));
+
+ return 0;
+}
+
/**
* t4_memory_rw - read/write EDC 0, EDC 1 or MC via PCIE memory window
* @adap: the adapter
@@ -3283,6 +3320,8 @@ static void mem_intr_handler(struct adapter *adapter, int
idx)
if (v & ECC_CE_INT_CAUSE_F) {
u32 cnt = ECC_CECNT_G(t4_read_reg(adapter, cnt_addr));
+ t4_edc_err_read(adapter, idx);
+
t4_write_reg(adapter, cnt_addr, ECC_CECNT_V(ECC_CECNT_M));
if (printk_ratelimit())
dev_warn(adapter->pdev_dev,
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
index 0626868..13ce018 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
@@ -2867,10 +2867,11 @@
#define EDC_H_BIST_DATA_PATTERN_A 0x50010
#define EDC_H_BIST_STATUS_RDATA_A 0x50028
+#define EDC_H_ECC_ERR_ADDR_A 0x50084
#define EDC_T51_BASE_ADDR 0x50800
-#define EDC_STRIDE_T5 (EDC_T51_BASE_ADDR - EDC_T50_BASE_ADDR)
-#define EDC_REG_T5(reg, idx) (reg + EDC_STRIDE_T5 * idx)
+#define EDC_T5_STRIDE (EDC_T51_BASE_ADDR - EDC_T50_BASE_ADDR)
+#define EDC_T5_REG(reg, idx) (reg + EDC_T5_STRIDE * idx)
#define PL_VF_REV_A 0x4
#define PL_VF_WHOAMI_A 0x0
--
2.3.4
--
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