hinic: add support to query sq info

add debugfs node for querying sq info, for example:
cat /sys/kernel/debug/hinic/0000:15:00.0/SQs/0x0/sq_pi

Signed-off-by: Luo bin <luobin9@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 42 insertions, 3 deletions

diff --git a/drivers/net/ethernet/huawei/hinic/hinic_main.c b/drivers/net/ethernet/huawei/hinic/hinic_main.c
index 501056fd32ee..aad1e5e1bfbe 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_main.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_main.c
@@ -24,6 +24,7 @@
 #include <linux/delay.h>
 #include <linux/err.h>
 
+#include "hinic_debugfs.h"
 #include "hinic_hw_qp.h"
 #include "hinic_hw_dev.h"
 #include "hinic_devlink.h"
@@ -153,6 +154,8 @@ static int create_txqs(struct hinic_dev *nic_dev)
 	if (!nic_dev->txqs)
 		return -ENOMEM;
 
+	hinic_sq_dbgfs_init(nic_dev);
+
 	for (i = 0; i < num_txqs; i++) {
 		struct hinic_sq *sq = hinic_hwdev_get_sq(nic_dev->hwdev, i);
 
@@ -162,13 +165,27 @@ static int create_txqs(struct hinic_dev *nic_dev)
 				  "Failed to init Txq\n");
 			goto err_init_txq;
 		}
+
+		err = hinic_sq_debug_add(nic_dev, i);
+		if (err) {
+			netif_err(nic_dev, drv, netdev,
+				  "Failed to add SQ%d debug\n", i);
+			goto err_add_sq_dbg;
+		}
+
 	}
 
 	return 0;
 
+err_add_sq_dbg:
+	hinic_clean_txq(&nic_dev->txqs[i]);
 err_init_txq:
-	for (j = 0; j < i; j++)
+	for (j = 0; j < i; j++) {
+		hinic_sq_debug_rem(nic_dev->txqs[j].sq);
 		hinic_clean_txq(&nic_dev->txqs[j]);
+	}
+
+	hinic_sq_dbgfs_uninit(nic_dev);
 
 	devm_kfree(&netdev->dev, nic_dev->txqs);
 	return err;
@@ -186,8 +203,12 @@ static void free_txqs(struct hinic_dev *nic_dev)
 	if (!nic_dev->txqs)
 		return;
 
-	for (i = 0; i < num_txqs; i++)
+	for (i = 0; i < num_txqs; i++) {
+		hinic_sq_debug_rem(nic_dev->txqs[i].sq);
 		hinic_clean_txq(&nic_dev->txqs[i]);
+	}
+
+	hinic_sq_dbgfs_uninit(nic_dev);
 
 	devm_kfree(&netdev->dev, nic_dev->txqs);
 	nic_dev->txqs = NULL;
@@ -1260,6 +1281,8 @@ static int nic_dev_init(struct pci_dev *pdev)
 		goto err_init_intr;
 	}
 
+	hinic_dbg_init(nic_dev);
+
 	err = register_netdev(netdev);
 	if (err) {
 		dev_err(&pdev->dev, "Failed to register netdev\n");
@@ -1269,6 +1292,7 @@ static int nic_dev_init(struct pci_dev *pdev)
 	return 0;
 
 err_reg_netdev:
+	hinic_dbg_uninit(nic_dev);
 	hinic_free_intr_coalesce(nic_dev);
 err_init_intr:
 err_set_pfc:
@@ -1391,6 +1415,8 @@ static void hinic_remove(struct pci_dev *pdev)
 
 	unregister_netdev(netdev);
 
+	hinic_dbg_uninit(nic_dev);
+
 	hinic_free_intr_coalesce(nic_dev);
 
 	hinic_port_del_mac(nic_dev, netdev->dev_addr, 0);
@@ -1445,4 +1471,17 @@ static struct pci_driver hinic_driver = {
 	.sriov_configure = hinic_pci_sriov_configure,
 };
 
-module_pci_driver(hinic_driver);
+static int __init hinic_module_init(void)
+{
+	hinic_dbg_register_debugfs(HINIC_DRV_NAME);
+	return pci_register_driver(&hinic_driver);
+}
+
+static void __exit hinic_module_exit(void)
+{
+	pci_unregister_driver(&hinic_driver);
+	hinic_dbg_unregister_debugfs();
+}
+
+module_init(hinic_module_init);
+module_exit(hinic_module_exit);