From 6778948f9de86c3cfaf36725a7c87dcff9ba247f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 08:20:59 +0000
Subject: [PATCH] kernel_5.10 no rt
---
kernel/drivers/net/ethernet/intel/e1000/e1000_main.c | 150 ++++++++++++++++++++------------------------------
1 files changed, 60 insertions(+), 90 deletions(-)
diff --git a/kernel/drivers/net/ethernet/intel/e1000/e1000_main.c b/kernel/drivers/net/ethernet/intel/e1000/e1000_main.c
index 1951088..5e28cf4 100644
--- a/kernel/drivers/net/ethernet/intel/e1000/e1000_main.c
+++ b/kernel/drivers/net/ethernet/intel/e1000/e1000_main.c
@@ -10,8 +10,6 @@
char e1000_driver_name[] = "e1000";
static char e1000_driver_string[] = "Intel(R) PRO/1000 Network Driver";
-#define DRV_VERSION "7.3.21-k8-NAPI"
-const char e1000_driver_version[] = DRV_VERSION;
static const char e1000_copyright[] = "Copyright (c) 1999-2006 Intel Corporation.";
/* e1000_pci_tbl - PCI Device ID Table
@@ -134,7 +132,7 @@
int cmd);
static void e1000_enter_82542_rst(struct e1000_adapter *adapter);
static void e1000_leave_82542_rst(struct e1000_adapter *adapter);
-static void e1000_tx_timeout(struct net_device *dev);
+static void e1000_tx_timeout(struct net_device *dev, unsigned int txqueue);
static void e1000_reset_task(struct work_struct *work);
static void e1000_smartspeed(struct e1000_adapter *adapter);
static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter,
@@ -151,10 +149,8 @@
__be16 proto, u16 vid);
static void e1000_restore_vlan(struct e1000_adapter *adapter);
-#ifdef CONFIG_PM
-static int e1000_suspend(struct pci_dev *pdev, pm_message_t state);
-static int e1000_resume(struct pci_dev *pdev);
-#endif
+static int __maybe_unused e1000_suspend(struct device *dev);
+static int __maybe_unused e1000_resume(struct device *dev);
static void e1000_shutdown(struct pci_dev *pdev);
#ifdef CONFIG_NET_POLL_CONTROLLER
@@ -179,24 +175,23 @@
.resume = e1000_io_resume,
};
+static SIMPLE_DEV_PM_OPS(e1000_pm_ops, e1000_suspend, e1000_resume);
+
static struct pci_driver e1000_driver = {
.name = e1000_driver_name,
.id_table = e1000_pci_tbl,
.probe = e1000_probe,
.remove = e1000_remove,
-#ifdef CONFIG_PM
- /* Power Management Hooks */
- .suspend = e1000_suspend,
- .resume = e1000_resume,
-#endif
+ .driver = {
+ .pm = &e1000_pm_ops,
+ },
.shutdown = e1000_shutdown,
.err_handler = &e1000_err_handler
};
MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>");
MODULE_DESCRIPTION("Intel(R) PRO/1000 Network Driver");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(DRV_VERSION);
+MODULE_LICENSE("GPL v2");
#define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK)
static int debug = -1;
@@ -204,8 +199,10 @@
MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
/**
- * e1000_get_hw_dev - return device
- * used by hardware layer to print debugging information
+ * e1000_get_hw_dev - helper function for getting netdev
+ * @hw: pointer to HW struct
+ *
+ * return device used by hardware layer to print debugging information
*
**/
struct net_device *e1000_get_hw_dev(struct e1000_hw *hw)
@@ -223,7 +220,7 @@
static int __init e1000_init_module(void)
{
int ret;
- pr_info("%s - version %s\n", e1000_driver_string, e1000_driver_version);
+ pr_info("%s\n", e1000_driver_string);
pr_info("%s\n", e1000_copyright);
@@ -359,7 +356,7 @@
/**
* e1000_configure - configure the hardware for RX and TX
- * @adapter = private board structure
+ * @adapter: private board structure
**/
static void e1000_configure(struct e1000_adapter *adapter)
{
@@ -539,7 +536,6 @@
void e1000_reinit_locked(struct e1000_adapter *adapter)
{
- WARN_ON(in_interrupt());
while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
msleep(1);
@@ -825,7 +821,7 @@
else
e1000_reset(adapter);
- return 0;
+ return 1;
}
static const struct net_device_ops e1000_netdev_ops = {
@@ -982,7 +978,7 @@
goto err_ioremap;
if (adapter->need_ioport) {
- for (i = BAR_1; i <= BAR_5; i++) {
+ for (i = BAR_1; i < PCI_STD_NUM_BARS; i++) {
if (pci_resource_len(pdev, i) == 0)
continue;
if (pci_resource_flags(pdev, i) & IORESOURCE_IO) {
@@ -1143,7 +1139,7 @@
EEPROM_INIT_CONTROL3_PORT_B, 1, &eeprom_data);
break;
}
- /* Fall Through */
+ fallthrough;
default:
e1000_read_eeprom(hw,
EEPROM_INIT_CONTROL3_PORT_A, 1, &eeprom_data);
@@ -1486,7 +1482,7 @@
if (hw->mac_type == e1000_82545 ||
hw->mac_type == e1000_ce4100 ||
hw->mac_type == e1000_82546) {
- return ((begin ^ (end - 1)) >> 16) != 0 ? false : true;
+ return ((begin ^ (end - 1)) >> 16) == 0;
}
return true;
@@ -2443,7 +2439,6 @@
if (link) {
if (!netif_carrier_ok(netdev)) {
u32 ctrl;
- bool txb2b = true;
/* update snapshot of PHY registers on LSC */
e1000_get_speed_and_duplex(hw,
&adapter->link_speed,
@@ -2465,11 +2460,9 @@
adapter->tx_timeout_factor = 1;
switch (adapter->link_speed) {
case SPEED_10:
- txb2b = false;
adapter->tx_timeout_factor = 16;
break;
case SPEED_100:
- txb2b = false;
/* maybe add some timeout factor ? */
break;
}
@@ -2728,11 +2721,7 @@
cmd_length = E1000_TXD_CMD_IP;
ipcse = skb_transport_offset(skb) - 1;
} else if (skb_is_gso_v6(skb)) {
- ipv6_hdr(skb)->payload_len = 0;
- tcp_hdr(skb)->check =
- ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
- &ipv6_hdr(skb)->daddr,
- 0, IPPROTO_TCP, 0);
+ tcp_v6_gso_csum_prep(skb);
ipcse = 0;
}
ipcss = skb_network_offset(skb);
@@ -2902,9 +2891,8 @@
}
for (f = 0; f < nr_frags; f++) {
- const struct skb_frag_struct *frag;
+ const skb_frag_t *frag = &skb_shinfo(skb)->frags[f];
- frag = &skb_shinfo(skb)->frags[f];
len = skb_frag_size(frag);
offset = 0;
@@ -3032,7 +3020,7 @@
* applicable for weak-ordered memory model archs,
* such as IA-64).
*/
- wmb();
+ dma_wmb();
tx_ring->next_to_use = i;
}
@@ -3167,7 +3155,6 @@
if ((unsigned long)(skb_tail_pointer(skb) - 1)
& 4)
break;
- /* fall through */
pull_size = min((unsigned int)4, skb->data_len);
if (!__pskb_pull_tail(skb, pull_size)) {
e_err(drv, "__pskb_pull_tail "
@@ -3282,14 +3269,9 @@
/* Make sure there is space in the ring for the next send. */
e1000_maybe_stop_tx(netdev, tx_ring, desc_needed);
- if (!skb->xmit_more ||
+ if (!netdev_xmit_more() ||
netif_xmit_stopped(netdev_get_tx_queue(netdev, 0))) {
writel(tx_ring->next_to_use, hw->hw_addr + tx_ring->tdt);
- /* we need this if more than one processor can write to
- * our tail at a time, it synchronizes IO on IA64/Altix
- * systems
- */
- mmiowb();
}
} else {
dev_kfree_skb_any(skb);
@@ -3508,8 +3490,9 @@
/**
* e1000_tx_timeout - Respond to a Tx Hang
* @netdev: network interface device structure
+ * @txqueue: number of the Tx queue that hung (unused)
**/
-static void e1000_tx_timeout(struct net_device *netdev)
+static void e1000_tx_timeout(struct net_device *netdev, unsigned int __always_unused txqueue)
{
struct e1000_adapter *adapter = netdev_priv(netdev);
@@ -3586,8 +3569,8 @@
(max_frame == MAXIMUM_ETHERNET_VLAN_SIZE)))
adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE;
- pr_info("%s changing MTU from %d to %d\n",
- netdev->name, netdev->mtu, new_mtu);
+ netdev_dbg(netdev, "changing MTU from %d to %d\n",
+ netdev->mtu, new_mtu);
netdev->mtu = new_mtu;
if (netif_running(netdev))
@@ -3806,7 +3789,8 @@
/**
* e1000_clean - NAPI Rx polling callback
- * @adapter: board private structure
+ * @napi: napi struct containing references to driver info
+ * @budget: budget given to driver for receive packets
**/
static int e1000_clean(struct napi_struct *napi, int budget)
{
@@ -3818,14 +3802,15 @@
adapter->clean_rx(adapter, &adapter->rx_ring[0], &work_done, budget);
- if (!tx_clean_complete)
- work_done = budget;
+ if (!tx_clean_complete || work_done == budget)
+ return budget;
- /* If budget not fully consumed, exit the polling mode */
- if (work_done < budget) {
+ /* Exit the polling mode, but don't re-enable interrupts if stack might
+ * poll us due to busy-polling
+ */
+ if (likely(napi_complete_done(napi, work_done))) {
if (likely(adapter->itr_setting & 3))
e1000_set_itr(adapter);
- napi_complete_done(napi, work_done);
if (!test_bit(__E1000_DOWN, &adapter->flags))
e1000_irq_enable(adapter);
}
@@ -3836,6 +3821,7 @@
/**
* e1000_clean_tx_irq - Reclaim resources after transmit completes
* @adapter: board private structure
+ * @tx_ring: ring to clean
**/
static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
struct e1000_tx_ring *tx_ring)
@@ -3951,7 +3937,7 @@
* @adapter: board private structure
* @status_err: receive descriptor status and error fields
* @csum: receive descriptor csum field
- * @sk_buff: socket buffer with received data
+ * @skb: socket buffer with received data
**/
static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err,
u32 csum, struct sk_buff *skb)
@@ -3988,6 +3974,9 @@
/**
* e1000_consume_page - helper function for jumbo Rx path
+ * @bi: software descriptor shadow data
+ * @skb: skb being modified
+ * @length: length of data being added
**/
static void e1000_consume_page(struct e1000_rx_buffer *bi, struct sk_buff *skb,
u16 length)
@@ -4021,6 +4010,7 @@
/**
* e1000_tbi_adjust_stats
* @hw: Struct containing variables accessed by shared code
+ * @stats: point to stats struct
* @frame_len: The length of the frame in question
* @mac_addr: The Ethernet destination address of the frame in question
*
@@ -4195,8 +4185,7 @@
/* an error means any chain goes out the window
* too
*/
- if (rx_ring->rx_skb_top)
- dev_kfree_skb(rx_ring->rx_skb_top);
+ dev_kfree_skb(rx_ring->rx_skb_top);
rx_ring->rx_skb_top = NULL;
goto next_desc;
}
@@ -4559,7 +4548,7 @@
* applicable for weak-ordered memory model archs,
* such as IA-64).
*/
- wmb();
+ dma_wmb();
writel(i, adapter->hw.hw_addr + rx_ring->rdt);
}
}
@@ -4567,6 +4556,8 @@
/**
* e1000_alloc_rx_buffers - Replace used receive buffers; legacy & extended
* @adapter: address of board private structure
+ * @rx_ring: pointer to ring struct
+ * @cleaned_count: number of new Rx buffers to try to allocate
**/
static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
struct e1000_rx_ring *rx_ring,
@@ -4674,14 +4665,14 @@
* applicable for weak-ordered memory model archs,
* such as IA-64).
*/
- wmb();
+ dma_wmb();
writel(i, hw->hw_addr + rx_ring->rdt);
}
}
/**
* e1000_smartspeed - Workaround for SmartSpeed on 82541 and 82547 controllers.
- * @adapter:
+ * @adapter: address of board private structure
**/
static void e1000_smartspeed(struct e1000_adapter *adapter)
{
@@ -4737,10 +4728,10 @@
}
/**
- * e1000_ioctl -
- * @netdev:
- * @ifreq:
- * @cmd:
+ * e1000_ioctl - handle ioctl calls
+ * @netdev: pointer to our netdev
+ * @ifr: pointer to interface request structure
+ * @cmd: ioctl data
**/
static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
{
@@ -4756,9 +4747,9 @@
/**
* e1000_mii_ioctl -
- * @netdev:
- * @ifreq:
- * @cmd:
+ * @netdev: pointer to our netdev
+ * @ifr: pointer to interface request structure
+ * @cmd: ioctl data
**/
static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr,
int cmd)
@@ -5073,9 +5064,6 @@
struct e1000_hw *hw = &adapter->hw;
u32 ctrl, ctrl_ext, rctl, status;
u32 wufc = adapter->wol;
-#ifdef CONFIG_PM
- int retval = 0;
-#endif
netif_device_detach(netdev);
@@ -5088,12 +5076,6 @@
WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags));
e1000_down(adapter);
}
-
-#ifdef CONFIG_PM
- retval = pci_save_state(pdev);
- if (retval)
- return retval;
-#endif
status = er32(STATUS);
if (status & E1000_STATUS_LU)
@@ -5155,36 +5137,25 @@
return 0;
}
-#ifdef CONFIG_PM
-static int e1000_suspend(struct pci_dev *pdev, pm_message_t state)
+static int __maybe_unused e1000_suspend(struct device *dev)
{
int retval;
+ struct pci_dev *pdev = to_pci_dev(dev);
bool wake;
retval = __e1000_shutdown(pdev, &wake);
- if (retval)
- return retval;
+ device_set_wakeup_enable(dev, wake);
- if (wake) {
- pci_prepare_to_sleep(pdev);
- } else {
- pci_wake_from_d3(pdev, false);
- pci_set_power_state(pdev, PCI_D3hot);
- }
-
- return 0;
+ return retval;
}
-static int e1000_resume(struct pci_dev *pdev)
+static int __maybe_unused e1000_resume(struct device *dev)
{
+ struct pci_dev *pdev = to_pci_dev(dev);
struct net_device *netdev = pci_get_drvdata(pdev);
struct e1000_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
u32 err;
-
- pci_set_power_state(pdev, PCI_D0);
- pci_restore_state(pdev);
- pci_save_state(pdev);
if (adapter->need_ioport)
err = pci_enable_device(pdev);
@@ -5222,7 +5193,6 @@
return 0;
}
-#endif
static void e1000_shutdown(struct pci_dev *pdev)
{
--
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