1 files changed, 46 insertions, 6 deletions

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index deda606c51e7..11d9739caea5 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -12,6 +12,7 @@
 #include <linux/pci.h>
 #include <linux/platform_device.h>
 #include <linux/if_vlan.h>
+#include <linux/crash_dump.h>
 #include <net/rtnetlink.h>
 #include "hclge_cmd.h"
 #include "hclge_dcb.h"
@@ -31,6 +32,7 @@
 static int hclge_set_mac_mtu(struct hclge_dev *hdev, int new_mps);
 static int hclge_init_vlan_config(struct hclge_dev *hdev);
 static int hclge_reset_ae_dev(struct hnae3_ae_dev *ae_dev);
+static bool hclge_get_hw_reset_stat(struct hnae3_handle *handle);
 static int hclge_set_umv_space(struct hclge_dev *hdev, u16 space_size,
 			       u16 *allocated_size, bool is_alloc);
 
@@ -1015,6 +1017,23 @@ static int hclge_get_cap(struct hclge_dev *hdev)
 	return ret;
 }
 
+static void hclge_init_kdump_kernel_config(struct hclge_dev *hdev)
+{
+#define HCLGE_MIN_TX_DESC	64
+#define HCLGE_MIN_RX_DESC	64
+
+	if (!is_kdump_kernel())
+		return;
+
+	dev_info(&hdev->pdev->dev,
+		 "Running kdump kernel. Using minimal resources\n");
+
+	/* minimal queue pairs equals to the number of vports */
+	hdev->num_tqps = hdev->num_vmdq_vport + hdev->num_req_vfs + 1;
+	hdev->num_tx_desc = HCLGE_MIN_TX_DESC;
+	hdev->num_rx_desc = HCLGE_MIN_RX_DESC;
+}
+
 static int hclge_configure(struct hclge_dev *hdev)
 {
 	struct hclge_cfg cfg;
@@ -1074,6 +1093,8 @@ static int hclge_configure(struct hclge_dev *hdev)
 
 	hdev->tx_sch_mode = HCLGE_FLAG_TC_BASE_SCH_MODE;
 
+	hclge_init_kdump_kernel_config(hdev);
+
 	return ret;
 }
 
@@ -2143,7 +2164,8 @@ static int hclge_mac_init(struct hclge_dev *hdev)
 
 static void hclge_mbx_task_schedule(struct hclge_dev *hdev)
 {
-	if (!test_and_set_bit(HCLGE_STATE_MBX_SERVICE_SCHED, &hdev->state))
+	if (!test_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state) &&
+	    !test_and_set_bit(HCLGE_STATE_MBX_SERVICE_SCHED, &hdev->state))
 		schedule_work(&hdev->mbx_service_task);
 }
 
@@ -2657,7 +2679,7 @@ static int hclge_set_all_vf_rst(struct hclge_dev *hdev, bool reset)
 			return ret;
 		}
 
-		if (!reset)
+		if (!reset || !test_bit(HCLGE_VPORT_STATE_ALIVE, &vport->state))
 			continue;
 
 		/* Inform VF to process the reset.
@@ -2694,9 +2716,18 @@ int hclge_func_reset_cmd(struct hclge_dev *hdev, int func_id)
 
 static void hclge_do_reset(struct hclge_dev *hdev)
 {
+	struct hnae3_handle *handle = &hdev->vport[0].nic;
 	struct pci_dev *pdev = hdev->pdev;
 	u32 val;
 
+	if (hclge_get_hw_reset_stat(handle)) {
+		dev_info(&pdev->dev, "Hardware reset not finish\n");
+		dev_info(&pdev->dev, "func_rst_reg:0x%x, global_rst_reg:0x%x\n",
+			 hclge_read_dev(&hdev->hw, HCLGE_FUN_RST_ING),
+			 hclge_read_dev(&hdev->hw, HCLGE_GLOBAL_RESET_REG));
+		return;
+	}
+
 	switch (hdev->reset_type) {
 	case HNAE3_GLOBAL_RESET:
 		val = hclge_read_dev(&hdev->hw, HCLGE_GLOBAL_RESET_REG);
@@ -2775,6 +2806,10 @@ static enum hnae3_reset_type hclge_get_reset_level(struct hclge_dev *hdev,
 		clear_bit(HNAE3_FLR_RESET, addr);
 	}
 
+	if (hdev->reset_type != HNAE3_NONE_RESET &&
+	    rst_level < hdev->reset_type)
+		return HNAE3_NONE_RESET;
+
 	return rst_level;
 }
 
@@ -3002,6 +3037,7 @@ static void hclge_reset(struct hclge_dev *hdev)
 	hdev->last_reset_time = jiffies;
 	hdev->reset_fail_cnt = 0;
 	ae_dev->reset_type = HNAE3_NONE_RESET;
+	del_timer(&hdev->reset_timer);
 
 	return;
 
@@ -5942,8 +5978,11 @@ int hclge_add_uc_addr_common(struct hclge_vport *vport,
 	}
 
 	/* check if we just hit the duplicate */
-	if (!ret)
-		ret = -EINVAL;
+	if (!ret) {
+		dev_warn(&hdev->pdev->dev, "VF %d mac(%pM) exists\n",
+			 vport->vport_id, addr);
+		return 0;
+	}
 
 	dev_err(&hdev->pdev->dev,
 		"PF failed to add unicast entry(%pM) in the MAC table\n",
@@ -6293,7 +6332,8 @@ static int hclge_set_mac_addr(struct hnae3_handle *handle, void *p,
 		return -EINVAL;
 	}
 
-	if (!is_first && hclge_rm_uc_addr(handle, hdev->hw.mac.mac_addr))
+	if ((!is_first || is_kdump_kernel()) &&
+	    hclge_rm_uc_addr(handle, hdev->hw.mac.mac_addr))
 		dev_warn(&hdev->pdev->dev,
 			 "remove old uc mac address fail.\n");
 
@@ -7708,7 +7748,7 @@ static void hclge_reset_vport_state(struct hclge_dev *hdev)
 	int i;
 
 	for (i = 0; i < hdev->num_alloc_vport; i++) {
-		hclge_vport_start(vport);
+		hclge_vport_stop(vport);
 		vport++;
 	}
 }