Commit b18bf305 authored by Huazhong Tan's avatar Huazhong Tan Committed by David S. Miller
Browse files

net: hns3: add handler for NCSI error mailbox 



When NCSI has HW error, the IMP will report this error to the driver
by sending a mailbox. After received this message, the driver should
assert a global reset to fix this kind of HW error.

Signed-off-by: default avatarHuazhong Tan <tanhuazhong@huawei.com>
Reviewed-by: default avatarPeng Li <lipeng321@huawei.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ed8fb4b2

drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h

+1 −0
Original line number Diff line number Diff line
@@ -48,6 +48,7 @@ enum HCLGE_MBX_OPCODE { 


	HCLGE_MBX_GET_VF_FLR_STATUS = 200, /* (M7 -> PF) get vf reset status */

	HCLGE_MBX_PUSH_LINK_STATUS,	/* (M7 -> PF) get port link status */

	HCLGE_MBX_NCSI_ERROR,		/* (M7 -> PF) receive a NCSI error */

};



/* below are per-VF mac-vlan subcodes */

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c

+1 −0
Original line number Diff line number Diff line
@@ -394,6 +394,7 @@ static int hclge_firmware_compat_config(struct hclge_dev *hdev) 
	req = (struct hclge_firmware_compat_cmd *)desc.data;



	hnae3_set_bit(compat, HCLGE_LINK_EVENT_REPORT_EN_B, 1);

	hnae3_set_bit(compat, HCLGE_NCSI_ERROR_REPORT_EN_B, 1);

	req->compat = cpu_to_le32(compat);



	return hclge_cmd_send(&hdev->hw, &desc, 1);

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h

+1 −0
Original line number Diff line number Diff line
@@ -1011,6 +1011,7 @@ struct hclge_query_ppu_pf_other_int_dfx_cmd { 
};



#define HCLGE_LINK_EVENT_REPORT_EN_B	0

#define HCLGE_NCSI_ERROR_REPORT_EN_B	1

struct hclge_firmware_compat_cmd {

	__le32 compat;

	u8 rsv[20];

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c

+12 −0
Original line number Diff line number Diff line
@@ -582,6 +582,15 @@ static bool hclge_cmd_crq_empty(struct hclge_hw *hw) 
	return tail == hw->cmq.crq.next_to_use;

}



static void hclge_handle_ncsi_error(struct hclge_dev *hdev)

{

	struct hnae3_ae_dev *ae_dev = hdev->ae_dev;



	ae_dev->ops->set_default_reset_request(ae_dev, HNAE3_GLOBAL_RESET);

	dev_warn(&hdev->pdev->dev, "requesting reset due to NCSI error\n");

	ae_dev->ops->reset_event(hdev->pdev, NULL);

}



void hclge_mbx_handler(struct hclge_dev *hdev)

{

	struct hclge_cmq_ring *crq = &hdev->hw.cmq.crq;
@@ -740,6 +749,9 @@ void hclge_mbx_handler(struct hclge_dev *hdev) 
		case HCLGE_MBX_PUSH_LINK_STATUS:

			hclge_handle_link_change_event(hdev, req);

			break;

		case HCLGE_MBX_NCSI_ERROR:

			hclge_handle_ncsi_error(hdev);

			break;

		default:

			dev_err(&hdev->pdev->dev,

				"un-supported mailbox message, code = %d\n",

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