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-rw-r--r--drivers/net/can/slcan.c37
-rw-r--r--drivers/net/ethernet/freescale/fec_main.c8
-rw-r--r--drivers/net/ethernet/tile/tilegx.c1
-rw-r--r--drivers/net/hyperv/netvsc.c2
-rw-r--r--drivers/net/slip/slip.c36
-rw-r--r--drivers/net/slip/slip.h1
-rw-r--r--drivers/net/vmxnet3/vmxnet3_drv.c7
-rw-r--r--drivers/net/vmxnet3/vmxnet3_ethtool.c12
-rw-r--r--drivers/net/vmxnet3/vmxnet3_int.h5
9 files changed, 80 insertions, 29 deletions
diff --git a/drivers/net/can/slcan.c b/drivers/net/can/slcan.c
index dcf9196f631..ea4d4f1a641 100644
--- a/drivers/net/can/slcan.c
+++ b/drivers/net/can/slcan.c
@@ -52,6 +52,7 @@
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/kernel.h>
+#include <linux/workqueue.h>
#include <linux/can.h>
#include <linux/can/skb.h>
@@ -85,6 +86,7 @@ struct slcan {
struct tty_struct *tty; /* ptr to TTY structure */
struct net_device *dev; /* easy for intr handling */
spinlock_t lock;
+ struct work_struct tx_work; /* Flushes transmit buffer */
/* These are pointers to the malloc()ed frame buffers. */
unsigned char rbuff[SLC_MTU]; /* receiver buffer */
@@ -309,36 +311,46 @@ static void slc_encaps(struct slcan *sl, struct can_frame *cf)
sl->dev->stats.tx_bytes += cf->can_dlc;
}
-/*
- * Called by the driver when there's room for more data. If we have
- * more packets to send, we send them here.
- */
-static void slcan_write_wakeup(struct tty_struct *tty)
+/* Write out any remaining transmit buffer. Scheduled when tty is writable */
+static void slcan_transmit(struct work_struct *work)
{
+ struct slcan *sl = container_of(work, struct slcan, tx_work);
int actual;
- struct slcan *sl = (struct slcan *) tty->disc_data;
+ spin_lock_bh(&sl->lock);
/* First make sure we're connected. */
- if (!sl || sl->magic != SLCAN_MAGIC || !netif_running(sl->dev))
+ if (!sl->tty || sl->magic != SLCAN_MAGIC || !netif_running(sl->dev)) {
+ spin_unlock_bh(&sl->lock);
return;
+ }
- spin_lock_bh(&sl->lock);
if (sl->xleft <= 0) {
/* Now serial buffer is almost free & we can start
* transmission of another packet */
sl->dev->stats.tx_packets++;
- clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
+ clear_bit(TTY_DO_WRITE_WAKEUP, &sl->tty->flags);
spin_unlock_bh(&sl->lock);
netif_wake_queue(sl->dev);
return;
}
- actual = tty->ops->write(tty, sl->xhead, sl->xleft);
+ actual = sl->tty->ops->write(sl->tty, sl->xhead, sl->xleft);
sl->xleft -= actual;
sl->xhead += actual;
spin_unlock_bh(&sl->lock);
}
+/*
+ * Called by the driver when there's room for more data.
+ * Schedule the transmit.
+ */
+static void slcan_write_wakeup(struct tty_struct *tty)
+{
+ struct slcan *sl = tty->disc_data;
+
+ schedule_work(&sl->tx_work);
+}
+
/* Send a can_frame to a TTY queue. */
static netdev_tx_t slc_xmit(struct sk_buff *skb, struct net_device *dev)
{
@@ -528,6 +540,7 @@ static struct slcan *slc_alloc(dev_t line)
sl->magic = SLCAN_MAGIC;
sl->dev = dev;
spin_lock_init(&sl->lock);
+ INIT_WORK(&sl->tx_work, slcan_transmit);
slcan_devs[i] = dev;
return sl;
@@ -626,8 +639,12 @@ static void slcan_close(struct tty_struct *tty)
if (!sl || sl->magic != SLCAN_MAGIC || sl->tty != tty)
return;
+ spin_lock_bh(&sl->lock);
tty->disc_data = NULL;
sl->tty = NULL;
+ spin_unlock_bh(&sl->lock);
+
+ flush_work(&sl->tx_work);
/* Flush network side */
unregister_netdev(sl->dev);
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 38d9d276ab8..77037fd377b 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -320,6 +320,11 @@ static void *swap_buffer(void *bufaddr, int len)
return bufaddr;
}
+static inline bool is_ipv4_pkt(struct sk_buff *skb)
+{
+ return skb->protocol == htons(ETH_P_IP) && ip_hdr(skb)->version == 4;
+}
+
static int
fec_enet_clear_csum(struct sk_buff *skb, struct net_device *ndev)
{
@@ -330,7 +335,8 @@ fec_enet_clear_csum(struct sk_buff *skb, struct net_device *ndev)
if (unlikely(skb_cow_head(skb, 0)))
return -1;
- ip_hdr(skb)->check = 0;
+ if (is_ipv4_pkt(skb))
+ ip_hdr(skb)->check = 0;
*(__sum16 *)(skb->head + skb->csum_start + skb->csum_offset) = 0;
return 0;
diff --git a/drivers/net/ethernet/tile/tilegx.c b/drivers/net/ethernet/tile/tilegx.c
index 14389f841d4..4c70360967c 100644
--- a/drivers/net/ethernet/tile/tilegx.c
+++ b/drivers/net/ethernet/tile/tilegx.c
@@ -2191,7 +2191,6 @@ static void tile_net_setup(struct net_device *dev)
static void tile_net_dev_init(const char *name, const uint8_t *mac)
{
int ret;
- int i;
struct net_device *dev;
struct tile_net_priv *priv;
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index c041f63a6d3..4ed38eaecea 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -189,7 +189,7 @@ static int netvsc_destroy_buf(struct netvsc_device *net_device)
"unable to teardown send buffer's gpadl\n");
return ret;
}
- net_device->recv_buf_gpadl_handle = 0;
+ net_device->send_buf_gpadl_handle = 0;
}
if (net_device->send_buf) {
/* Free up the receive buffer */
diff --git a/drivers/net/slip/slip.c b/drivers/net/slip/slip.c
index ad4a94e9ff5..87526443841 100644
--- a/drivers/net/slip/slip.c
+++ b/drivers/net/slip/slip.c
@@ -83,6 +83,7 @@
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/slab.h>
+#include <linux/workqueue.h>
#include "slip.h"
#ifdef CONFIG_INET
#include <linux/ip.h>
@@ -416,36 +417,46 @@ static void sl_encaps(struct slip *sl, unsigned char *icp, int len)
#endif
}
-/*
- * Called by the driver when there's room for more data. If we have
- * more packets to send, we send them here.
- */
-static void slip_write_wakeup(struct tty_struct *tty)
+/* Write out any remaining transmit buffer. Scheduled when tty is writable */
+static void slip_transmit(struct work_struct *work)
{
+ struct slip *sl = container_of(work, struct slip, tx_work);
int actual;
- struct slip *sl = tty->disc_data;
+ spin_lock_bh(&sl->lock);
/* First make sure we're connected. */
- if (!sl || sl->magic != SLIP_MAGIC || !netif_running(sl->dev))
+ if (!sl->tty || sl->magic != SLIP_MAGIC || !netif_running(sl->dev)) {
+ spin_unlock_bh(&sl->lock);
return;
+ }
- spin_lock_bh(&sl->lock);
if (sl->xleft <= 0) {
/* Now serial buffer is almost free & we can start
* transmission of another packet */
sl->dev->stats.tx_packets++;
- clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
+ clear_bit(TTY_DO_WRITE_WAKEUP, &sl->tty->flags);
spin_unlock_bh(&sl->lock);
sl_unlock(sl);
return;
}
- actual = tty->ops->write(tty, sl->xhead, sl->xleft);
+ actual = sl->tty->ops->write(sl->tty, sl->xhead, sl->xleft);
sl->xleft -= actual;
sl->xhead += actual;
spin_unlock_bh(&sl->lock);
}
+/*
+ * Called by the driver when there's room for more data.
+ * Schedule the transmit.
+ */
+static void slip_write_wakeup(struct tty_struct *tty)
+{
+ struct slip *sl = tty->disc_data;
+
+ schedule_work(&sl->tx_work);
+}
+
static void sl_tx_timeout(struct net_device *dev)
{
struct slip *sl = netdev_priv(dev);
@@ -749,6 +760,7 @@ static struct slip *sl_alloc(dev_t line)
sl->magic = SLIP_MAGIC;
sl->dev = dev;
spin_lock_init(&sl->lock);
+ INIT_WORK(&sl->tx_work, slip_transmit);
sl->mode = SL_MODE_DEFAULT;
#ifdef CONFIG_SLIP_SMART
/* initialize timer_list struct */
@@ -872,8 +884,12 @@ static void slip_close(struct tty_struct *tty)
if (!sl || sl->magic != SLIP_MAGIC || sl->tty != tty)
return;
+ spin_lock_bh(&sl->lock);
tty->disc_data = NULL;
sl->tty = NULL;
+ spin_unlock_bh(&sl->lock);
+
+ flush_work(&sl->tx_work);
/* VSV = very important to remove timers */
#ifdef CONFIG_SLIP_SMART
diff --git a/drivers/net/slip/slip.h b/drivers/net/slip/slip.h
index 67673cf1266..cf32aadf508 100644
--- a/drivers/net/slip/slip.h
+++ b/drivers/net/slip/slip.h
@@ -53,6 +53,7 @@ struct slip {
struct tty_struct *tty; /* ptr to TTY structure */
struct net_device *dev; /* easy for intr handling */
spinlock_t lock;
+ struct work_struct tx_work; /* Flushes transmit buffer */
#ifdef SL_INCLUDE_CSLIP
struct slcompress *slcomp; /* for header compression */
diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index 97394345e5d..b76f7dcde0d 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -2589,8 +2589,8 @@ vmxnet3_open(struct net_device *netdev)
for (i = 0; i < adapter->num_tx_queues; i++)
spin_lock_init(&adapter->tx_queue[i].tx_lock);
- err = vmxnet3_create_queues(adapter, VMXNET3_DEF_TX_RING_SIZE,
- VMXNET3_DEF_RX_RING_SIZE,
+ err = vmxnet3_create_queues(adapter, adapter->tx_ring_size,
+ adapter->rx_ring_size,
VMXNET3_DEF_RX_RING_SIZE);
if (err)
goto queue_err;
@@ -2968,6 +2968,9 @@ vmxnet3_probe_device(struct pci_dev *pdev,
adapter->netdev = netdev;
adapter->pdev = pdev;
+ adapter->tx_ring_size = VMXNET3_DEF_TX_RING_SIZE;
+ adapter->rx_ring_size = VMXNET3_DEF_RX_RING_SIZE;
+
spin_lock_init(&adapter->cmd_lock);
adapter->adapter_pa = dma_map_single(&adapter->pdev->dev, adapter,
sizeof(struct vmxnet3_adapter),
diff --git a/drivers/net/vmxnet3/vmxnet3_ethtool.c b/drivers/net/vmxnet3/vmxnet3_ethtool.c
index 40c1c7b0d9e..b725fd9e780 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethtool.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethtool.c
@@ -449,8 +449,8 @@ vmxnet3_get_ringparam(struct net_device *netdev,
param->rx_mini_max_pending = 0;
param->rx_jumbo_max_pending = 0;
- param->rx_pending = adapter->rx_queue[0].rx_ring[0].size;
- param->tx_pending = adapter->tx_queue[0].tx_ring.size;
+ param->rx_pending = adapter->rx_ring_size;
+ param->tx_pending = adapter->tx_ring_size;
param->rx_mini_pending = 0;
param->rx_jumbo_pending = 0;
}
@@ -529,9 +529,11 @@ vmxnet3_set_ringparam(struct net_device *netdev,
* size */
netdev_err(netdev, "failed to apply new sizes, "
"try the default ones\n");
+ new_rx_ring_size = VMXNET3_DEF_RX_RING_SIZE;
+ new_tx_ring_size = VMXNET3_DEF_TX_RING_SIZE;
err = vmxnet3_create_queues(adapter,
- VMXNET3_DEF_TX_RING_SIZE,
- VMXNET3_DEF_RX_RING_SIZE,
+ new_tx_ring_size,
+ new_rx_ring_size,
VMXNET3_DEF_RX_RING_SIZE);
if (err) {
netdev_err(netdev, "failed to create queues "
@@ -545,6 +547,8 @@ vmxnet3_set_ringparam(struct net_device *netdev,
netdev_err(netdev, "failed to re-activate, error %d."
" Closing it\n", err);
}
+ adapter->tx_ring_size = new_tx_ring_size;
+ adapter->rx_ring_size = new_rx_ring_size;
out:
clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state);
diff --git a/drivers/net/vmxnet3/vmxnet3_int.h b/drivers/net/vmxnet3/vmxnet3_int.h
index 190569d0245..29ee77f2c97 100644
--- a/drivers/net/vmxnet3/vmxnet3_int.h
+++ b/drivers/net/vmxnet3/vmxnet3_int.h
@@ -349,6 +349,11 @@ struct vmxnet3_adapter {
u32 link_speed; /* in mbps */
u64 tx_timeout_count;
+
+ /* Ring sizes */
+ u32 tx_ring_size;
+ u32 rx_ring_size;
+
struct work_struct work;
unsigned long state; /* VMXNET3_STATE_BIT_xxx */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-10-22 03:05:31 +0000