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Commit bf8ebb67 authored by Hariprasad Shenai's avatar Hariprasad Shenai Committed by David S. Miller
Browse files

cxgb4: Add support to dump edc bist status 



Add support to dump edc bist status for ECC data errors

Signed-off-by: default avatarHariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5888111c

drivers/net/ethernet/chelsio/cxgb4/t4_hw.c

+39 −0
Original line number Diff line number Diff line
@@ -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,

drivers/net/ethernet/chelsio/cxgb4/t4_regs.h

+3 −2
Original line number Diff line number Diff line
@@ -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