Commit ffc8f149 authored by Xiaofei Tan's avatar Xiaofei Tan Committed by Martin K. Petersen
Browse files

scsi: hisi_sas: add v3 hw DFX feature 



Realise get_events() to add DFX feature for v3 hw. Just like v2 hw, We
support the following errors:
- loss_of_dword_sync_count
- invalid_dword_count
- phy_reset_problem_count
- running_disparity_error_count

Signed-off-by: default avatarXiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: default avatarJohn Garry <john.garry@huawei.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent d40bfb0d

drivers/scsi/hisi_sas/hisi_sas_v3_hw.c

+30 −0
Original line number Diff line number Diff line
@@ -172,6 +172,10 @@ 
#define DMA_RX_STATUS			(PORT_BASE + 0x2e8)

#define DMA_RX_STATUS_BUSY_OFF		0

#define DMA_RX_STATUS_BUSY_MSK		(0x1 << DMA_RX_STATUS_BUSY_OFF)

#define ERR_CNT_DWS_LOST		(PORT_BASE + 0x380)

#define ERR_CNT_RESET_PROB		(PORT_BASE + 0x384)

#define ERR_CNT_INVLD_DW		(PORT_BASE + 0x390)

#define ERR_CNT_DISP_ERR		(PORT_BASE + 0x398)



#define DEFAULT_ITCT_HW		2048 /* reset value, not reprogrammed */

#if (HISI_SAS_MAX_DEVICES > DEFAULT_ITCT_HW)
@@ -1742,6 +1746,31 @@ static u32 get_phys_state_v3_hw(struct hisi_hba *hisi_hba) 
	return hisi_sas_read32(hisi_hba, PHY_STATE);

}



static void phy_get_events_v3_hw(struct hisi_hba *hisi_hba, int phy_no)

{

	struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];

	struct asd_sas_phy *sas_phy = &phy->sas_phy;

	struct sas_phy *sphy = sas_phy->phy;

	u32 reg_value;



	/* loss dword sync */

	reg_value = hisi_sas_phy_read32(hisi_hba, phy_no, ERR_CNT_DWS_LOST);

	sphy->loss_of_dword_sync_count += reg_value;



	/* phy reset problem */

	reg_value = hisi_sas_phy_read32(hisi_hba, phy_no, ERR_CNT_RESET_PROB);

	sphy->phy_reset_problem_count += reg_value;



	/* invalid dword */

	reg_value = hisi_sas_phy_read32(hisi_hba, phy_no, ERR_CNT_INVLD_DW);

	sphy->invalid_dword_count += reg_value;



	/* disparity err */

	reg_value = hisi_sas_phy_read32(hisi_hba, phy_no, ERR_CNT_DISP_ERR);

	sphy->running_disparity_error_count += reg_value;



}



static int soft_reset_v3_hw(struct hisi_hba *hisi_hba)

{

	struct device *dev = hisi_hba->dev;
@@ -1794,6 +1823,7 @@ static const struct hisi_sas_hw hisi_sas_v3_hw = { 
	.dereg_device = dereg_device_v3_hw,

	.soft_reset = soft_reset_v3_hw,

	.get_phys_state = get_phys_state_v3_hw,

	.get_events = phy_get_events_v3_hw,

};



static struct Scsi_Host *

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