From 04dd17822334871b23ea2862f7798fb0e0007777 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 11 May 2024 08:53:19 +0000
Subject: [PATCH] change otg to host mode
---
kernel/drivers/net/ntb_netdev.c | 41 +++++++++++++----------------------------
1 files changed, 13 insertions(+), 28 deletions(-)
diff --git a/kernel/drivers/net/ntb_netdev.c b/kernel/drivers/net/ntb_netdev.c
index df8d49a..b701ee8 100644
--- a/kernel/drivers/net/ntb_netdev.c
+++ b/kernel/drivers/net/ntb_netdev.c
@@ -71,7 +71,6 @@
static unsigned int tx_stop = 5;
struct ntb_netdev {
- struct list_head list;
struct pci_dev *pdev;
struct net_device *ndev;
struct ntb_transport_qp *qp;
@@ -80,8 +79,6 @@
#define NTB_TX_TIMEOUT_MS 1000
#define NTB_RXQ_SIZE 100
-
-static LIST_HEAD(dev_list);
static void ntb_netdev_event_handler(void *data, int link_is_up)
{
@@ -140,7 +137,7 @@
enqueue_again:
rc = ntb_transport_rx_enqueue(qp, skb, skb->data, ndev->mtu + ETH_HLEN);
if (rc) {
- dev_kfree_skb(skb);
+ dev_kfree_skb_any(skb);
ndev->stats.rx_errors++;
ndev->stats.rx_fifo_errors++;
}
@@ -195,7 +192,7 @@
ndev->stats.tx_aborted_errors++;
}
- dev_kfree_skb(skb);
+ dev_kfree_skb_any(skb);
if (ntb_transport_tx_free_entry(dev->qp) >= tx_start) {
/* Make sure anybody stopping the queue after this sees the new
@@ -452,7 +449,7 @@
if (rc)
goto err1;
- list_add(&dev->list, &dev_list);
+ dev_set_drvdata(client_dev, ndev);
dev_info(&pdev->dev, "%s created\n", ndev->name);
return 0;
@@ -465,27 +462,8 @@
static void ntb_netdev_remove(struct device *client_dev)
{
- struct ntb_dev *ntb;
- struct net_device *ndev;
- struct pci_dev *pdev;
- struct ntb_netdev *dev;
- bool found = false;
-
- ntb = dev_ntb(client_dev->parent);
- pdev = ntb->pdev;
-
- list_for_each_entry(dev, &dev_list, list) {
- if (dev->pdev == pdev) {
- found = true;
- break;
- }
- }
- if (!found)
- return;
-
- list_del(&dev->list);
-
- ndev = dev->ndev;
+ struct net_device *ndev = dev_get_drvdata(client_dev);
+ struct ntb_netdev *dev = netdev_priv(ndev);
unregister_netdev(ndev);
ntb_transport_free_queue(dev->qp);
@@ -506,7 +484,14 @@
rc = ntb_transport_register_client_dev(KBUILD_MODNAME);
if (rc)
return rc;
- return ntb_transport_register_client(&ntb_netdev_client);
+
+ rc = ntb_transport_register_client(&ntb_netdev_client);
+ if (rc) {
+ ntb_transport_unregister_client_dev(KBUILD_MODNAME);
+ return rc;
+ }
+
+ return 0;
}
module_init(ntb_netdev_init_module);
--
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