1 files changed, 44 insertions, 6 deletions

diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
index 3352d027ab89..0c22fd014378 100644
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -178,13 +178,15 @@ static int enic_wq_service(struct vnic_dev *vdev, struct cq_desc *cq_desc,
 	return 0;
 }
 
-static void enic_log_q_error(struct enic *enic)
+static bool enic_log_q_error(struct enic *enic)
 {
 	unsigned int i;
 	u32 error_status;
+	bool err = false;
 
 	for (i = 0; i < enic->wq_count; i++) {
 		error_status = vnic_wq_error_status(&enic->wq[i]);
+		err |= error_status;
 		if (error_status)
 			netdev_err(enic->netdev, "WQ[%d] error_status %d\n",
 				i, error_status);
@@ -192,10 +194,13 @@ static void enic_log_q_error(struct enic *enic)
 
 	for (i = 0; i < enic->rq_count; i++) {
 		error_status = vnic_rq_error_status(&enic->rq[i]);
+		err |= error_status;
 		if (error_status)
 			netdev_err(enic->netdev, "RQ[%d] error_status %d\n",
 				i, error_status);
 	}
+
+	return err;
 }
 
 static void enic_msglvl_check(struct enic *enic)
@@ -333,10 +338,9 @@ static irqreturn_t enic_isr_msix_err(int irq, void *data)
 
 	vnic_intr_return_all_credits(&enic->intr[intr]);
 
-	enic_log_q_error(enic);
-
-	/* schedule recovery from WQ/RQ error */
-	schedule_work(&enic->reset);
+	if (enic_log_q_error(enic))
+		/* schedule recovery from WQ/RQ error */
+		schedule_work(&enic->reset);
 
 	return IRQ_HANDLED;
 }
@@ -804,7 +808,7 @@ static void enic_set_rx_mode(struct net_device *netdev)
 static void enic_tx_timeout(struct net_device *netdev)
 {
 	struct enic *enic = netdev_priv(netdev);
-	schedule_work(&enic->reset);
+	schedule_work(&enic->tx_hang_reset);
 }
 
 static int enic_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
@@ -1924,6 +1928,19 @@ static int enic_dev_open(struct enic *enic)
 	return err;
 }
 
+static int enic_dev_soft_reset(struct enic *enic)
+{
+	int err;
+
+	err = enic_dev_wait(enic->vdev, vnic_dev_soft_reset,
+			    vnic_dev_soft_reset_done, 0);
+	if (err)
+		netdev_err(enic->netdev, "vNIC soft reset failed, err %d\n",
+			   err);
+
+	return err;
+}
+
 static int enic_dev_hang_reset(struct enic *enic)
 {
 	int err;
@@ -2060,6 +2077,26 @@ static void enic_reset(struct work_struct *work)
 	rtnl_lock();
 
 	spin_lock(&enic->enic_api_lock);
+	enic_stop(enic->netdev);
+	enic_dev_soft_reset(enic);
+	enic_reset_addr_lists(enic);
+	enic_init_vnic_resources(enic);
+	enic_set_rss_nic_cfg(enic);
+	enic_dev_set_ig_vlan_rewrite_mode(enic);
+	enic_open(enic->netdev);
+	spin_unlock(&enic->enic_api_lock);
+	call_netdevice_notifiers(NETDEV_REBOOT, enic->netdev);
+
+	rtnl_unlock();
+}
+
+static void enic_tx_hang_reset(struct work_struct *work)
+{
+	struct enic *enic = container_of(work, struct enic, tx_hang_reset);
+
+	rtnl_lock();
+
+	spin_lock(&enic->enic_api_lock);
 	enic_dev_hang_notify(enic);
 	enic_stop(enic->netdev);
 	enic_dev_hang_reset(enic);
@@ -2583,6 +2620,7 @@ static int enic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	enic_set_rx_coal_setting(enic);
 	INIT_WORK(&enic->reset, enic_reset);
+	INIT_WORK(&enic->tx_hang_reset, enic_tx_hang_reset);
 	INIT_WORK(&enic->change_mtu_work, enic_change_mtu_work);
 
 	for (i = 0; i < enic->wq_count; i++)