net: hns3: add support for handling all errors through MSI-X

Currently, hardware errors can be reported through AER or MSI-X mode.
However, the AER mode is intended to handle only bus errors, but not
hardware errors. On the other hand, virtual machines cannot handle
AER errors. When an AER error is reported, virtual machines will be
suspended. So add support for handling all these hardware errors
through MSI-X mode which depends on a newer version of firmware,
and reserve the handler of the AER mode for compatibility.

Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Jiaran Zhang <zhangjiaran@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 16 insertions, 0 deletions

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c
index f125aa425872..540dd15d7771 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c
@@ -1611,11 +1611,27 @@ static const struct hclge_hw_blk hw_blk[] = {
 	{ /* sentinel */ }
 };
 
+static void hclge_config_all_msix_error(struct hclge_dev *hdev, bool enable)
+{
+	u32 reg_val;
+
+	reg_val = hclge_read_dev(&hdev->hw, HCLGE_PF_OTHER_INT_REG);
+
+	if (enable)
+		reg_val |= BIT(HCLGE_VECTOR0_ALL_MSIX_ERR_B);
+	else
+		reg_val &= ~BIT(HCLGE_VECTOR0_ALL_MSIX_ERR_B);
+
+	hclge_write_dev(&hdev->hw, HCLGE_PF_OTHER_INT_REG, reg_val);
+}
+
 int hclge_config_nic_hw_error(struct hclge_dev *hdev, bool state)
 {
 	const struct hclge_hw_blk *module = hw_blk;
 	int ret = 0;
 
+	hclge_config_all_msix_error(hdev, state);
+
 	while (module->name) {
 		if (module->config_err_int) {
 			ret = module->config_err_int(hdev, state);