Skip to content

L
linux
Commit f5e52e1b authored by Jeff Garzik's avatar Jeff Garzik
Browse files
Options

Merge redhat.com:/spare/repo/netdev-2.6/tulip 

into redhat.com:/spare/repo/net-drivers-2.5
parents c43fb198 1d58df4b
Show whitespace changes
Inline Side-by-side
Showing with 350 additions and 152 deletions
drivers/net/tulip/Kconfig
View file @ f5e52e1b
......@@ -68,6 +68,26 @@ config TULIP_MMIO
obscure bugs if your mainboard has memory controller timing issues.
If in doubt, say N.
config TULIP_NAPI
bool "Use NAPI RX polling "
depends on TULIP
---help---
This is of useful for servers and routers dealing with high network loads.
See <file:Documentation/networking/NAPI_HOWTO.txt>.
If in doubt, say N.
config TULIP_NAPI_HW_MITIGATION
bool "Use Interrupt Mitigation "
depends on TULIP_NAPI
---help---
Use HW to reduce RX interrupts. Not strict necessary since NAPI reduces
RX interrupts but itself. Although this reduces RX interrupts even at
low levels traffic at the cost of a small latency.
If in doubt, say Y.
config DE4X5
tristate "Generic DECchip & DIGITAL EtherWORKS PCI/EISA"
depends on NET_TULIP && (PCI || EISA)
......
drivers/net/tulip/interrupt.c
View file @ f5e52e1b
......@@ -19,13 +19,13 @@
#include <linux/etherdevice.h>
#include <linux/pci.h>
int tulip_rx_copybreak;
unsigned int tulip_max_interrupt_work;
#ifdef CONFIG_NET_HW_FLOWCONTROL
#ifdef CONFIG_TULIP_NAPI_HW_MITIGATION
#define MIT_SIZE 15
#define MIT_TABLE 15 /* We use 0 or max */
unsigned int mit_table[MIT_SIZE+1] =
{
/* CRS11 21143 hardware Mitigation Control Interrupt
......@@ -99,16 +99,28 @@ int tulip_refill_rx(struct net_device *dev)
return refilled;
}
#ifdef CONFIG_TULIP_NAPI
static int tulip_rx(struct net_device *dev)
void oom_timer(unsigned long data)
{
struct net_device *dev = (struct net_device *)data;
netif_rx_schedule(dev);
}
int tulip_poll(struct net_device *dev, int *budget)
{
struct tulip_private *tp = (struct tulip_private *)dev->priv;
int entry = tp->cur_rx % RX_RING_SIZE;
int rx_work_limit = tp->dirty_rx + RX_RING_SIZE - tp->cur_rx;
int rx_work_limit = *budget;
int received = 0;
#ifdef CONFIG_NET_HW_FLOWCONTROL
int drop = 0, mit_sel = 0;
if (!netif_running(dev))
goto done;
if (rx_work_limit > dev->quota)
rx_work_limit = dev->quota;
#ifdef CONFIG_TULIP_NAPI_HW_MITIGATION
/* that one buffer is needed for mit activation; or might be a
bug in the ring buffer code; check later -- JHS*/
......@@ -119,15 +131,26 @@ static int tulip_rx(struct net_device *dev)
if (tulip_debug > 4)
printk(KERN_DEBUG " In tulip_rx(), entry %d %8.8x.\n", entry,
tp->rx_ring[entry].status);
do {
/* Acknowledge current RX interrupt sources. */
outl((RxIntr | RxNoBuf), dev->base_addr + CSR5);
/* If we own the next entry, it is a new packet. Send it up. */
while ( ! (tp->rx_ring[entry].status & cpu_to_le32(DescOwned))) {
s32 status = le32_to_cpu(tp->rx_ring[entry].status);
if (tp->dirty_rx + RX_RING_SIZE == tp->cur_rx)
break;
if (tulip_debug > 5)
printk(KERN_DEBUG "%s: In tulip_rx(), entry %d %8.8x.\n",
dev->name, entry, status);
if (--rx_work_limit < 0)
break;
goto not_done;
if ((status & 0x38008300) != 0x0300) {
if ((status & 0x38000300) != 0x0300) {
/* Ingore earlier buffers. */
......@@ -162,12 +185,6 @@ static int tulip_rx(struct net_device *dev)
tp->stats.rx_length_errors++;
}
#endif
#ifdef CONFIG_NET_HW_FLOWCONTROL
drop = atomic_read(&netdev_dropping);
if (drop)
goto throttle;
#endif
/* Check if the packet is long enough to accept without copying
to a minimally-sized skbuff. */
if (pkt_len < tulip_rx_copybreak
......@@ -194,10 +211,10 @@ static int tulip_rx(struct net_device *dev)
if (tp->rx_buffers[entry].mapping !=
le32_to_cpu(tp->rx_ring[entry].buffer1)) {
printk(KERN_ERR "%s: Internal fault: The skbuff addresses "
"do not match in tulip_rx: %08x vs. %Lx %p / %p.\n",
"do not match in tulip_rx: %08x vs. %08x %p / %p.\n",
dev->name,
le32_to_cpu(tp->rx_ring[entry].buffer1),
(long long)tp->rx_buffers[entry].mapping,
tp->rx_buffers[entry].mapping,
skb->head, temp);
}
#endif
......@@ -209,52 +226,36 @@ static int tulip_rx(struct net_device *dev)
tp->rx_buffers[entry].mapping = 0;
}
skb->protocol = eth_type_trans(skb, dev);
#ifdef CONFIG_NET_HW_FLOWCONTROL
mit_sel =
#endif
netif_rx(skb);
#ifdef CONFIG_NET_HW_FLOWCONTROL
switch (mit_sel) {
case NET_RX_SUCCESS:
case NET_RX_CN_LOW:
case NET_RX_CN_MOD:
break;
case NET_RX_CN_HIGH:
rx_work_limit -= NET_RX_CN_HIGH; /* additional*/
break;
case NET_RX_DROP:
rx_work_limit = -1;
break;
default:
printk("unknown feedback return code %d\n", mit_sel);
break;
}
drop = atomic_read(&netdev_dropping);
if (drop) {
throttle:
rx_work_limit = -1;
mit_sel = NET_RX_DROP;
if (tp->fc_bit) {
long ioaddr = dev->base_addr;
netif_receive_skb(skb);
/* disable Rx & RxNoBuf ints. */
outl(tulip_tbl[tp->chip_id].valid_intrs&RX_A_NBF_STOP, ioaddr + CSR7);
set_bit(tp->fc_bit, &netdev_fc_xoff);
}
}
#endif
dev->last_rx = jiffies;
tp->stats.rx_packets++;
tp->stats.rx_bytes += pkt_len;
}
received++;
entry = (++tp->cur_rx) % RX_RING_SIZE;
if (tp->cur_rx - tp->dirty_rx > RX_RING_SIZE/4)
tulip_refill_rx(dev);
}
#ifdef CONFIG_NET_HW_FLOWCONTROL
/* New ack strategy... irq does not ack Rx any longer
hopefully this helps */
/* Really bad things can happen here... If new packet arrives
* and an irq arrives (tx or just due to occasionally unset
* mask), it will be acked by irq handler, but new thread
* is not scheduled. It is major hole in design.
* No idea how to fix this if "playing with fire" will fail
* tomorrow (night 011029). If it will not fail, we won
* finally: amount of IO did not increase at all. */
} while ((inl(dev->base_addr + CSR5) & RxIntr));
done:
#ifdef CONFIG_TULIP_NAPI_HW_MITIGATION
/* We use this simplistic scheme for IM. It's proven by
real life installations. We can have IM enabled
......@@ -263,7 +264,7 @@ static int tulip_rx(struct net_device *dev)
This would turn on IM for devices that is not contributing
to backlog congestion with unnecessary latency.
We monitor the device RX-ring and have:
We monitor the the device RX-ring and have:
HW Interrupt Mitigation either ON or OFF.
......@@ -274,22 +275,191 @@ static int tulip_rx(struct net_device *dev)
if( tp->flags & HAS_INTR_MITIGATION) {
if((received > 1 || mit_sel == NET_RX_DROP)
&& tp->mit_sel != 15 ) {
tp->mit_sel = 15;
tp->mit_change = 1; /* Force IM change */
if( received > 1 ) {
if( ! tp->mit_on ) {
tp->mit_on = 1;
outl(mit_table[MIT_TABLE], dev->base_addr + CSR11);
}
}
else {
if( tp->mit_on ) {
tp->mit_on = 0;
outl(0, dev->base_addr + CSR11);
}
}
}
#endif /* CONFIG_TULIP_NAPI_HW_MITIGATION */
dev->quota -= received;
*budget -= received;
tulip_refill_rx(dev);
/* If RX ring is not full we are out of memory. */
if (tp->rx_buffers[tp->dirty_rx % RX_RING_SIZE].skb == NULL) goto oom;
/* Remove us from polling list and enable RX intr. */
netif_rx_complete(dev);
outl(tulip_tbl[tp->chip_id].valid_intrs, dev->base_addr+CSR7);
/* The last op happens after poll completion. Which means the following:
* 1. it can race with disabling irqs in irq handler
* 2. it can race with dise/enabling irqs in other poll threads
* 3. if an irq raised after beginning loop, it will be immediately
* triggered here.
*
* Summarizing: the logic results in some redundant irqs both
* due to races in masking and due to too late acking of already
* processed irqs. But it must not result in losing events.
*/
return 0;
not_done:
if (!received) {
received = dev->quota; /* Not to happen */
}
dev->quota -= received;
*budget -= received;
if (tp->cur_rx - tp->dirty_rx > RX_RING_SIZE/2 ||
tp->rx_buffers[tp->dirty_rx % RX_RING_SIZE].skb == NULL)
tulip_refill_rx(dev);
if (tp->rx_buffers[tp->dirty_rx % RX_RING_SIZE].skb == NULL) goto oom;
return 1;
oom: /* Executed with RX ints disabled */
/* Start timer, stop polling, but do not enable rx interrupts. */
mod_timer(&tp->oom_timer, jiffies+1);
/* Think: timer_pending() was an explicit signature of bug.
* Timer can be pending now but fired and completed
* before we did netif_rx_complete(). See? We would lose it. */
/* remove ourselves from the polling list */
netif_rx_complete(dev);
return 0;
}
#else /* CONFIG_TULIP_NAPI */
static int tulip_rx(struct net_device *dev)
{
struct tulip_private *tp = (struct tulip_private *)dev->priv;
int entry = tp->cur_rx % RX_RING_SIZE;
int rx_work_limit = tp->dirty_rx + RX_RING_SIZE - tp->cur_rx;
int received = 0;
if (tulip_debug > 4)
printk(KERN_DEBUG " In tulip_rx(), entry %d %8.8x.\n", entry,
tp->rx_ring[entry].status);
/* If we own the next entry, it is a new packet. Send it up. */
while ( ! (tp->rx_ring[entry].status & cpu_to_le32(DescOwned))) {
s32 status = le32_to_cpu(tp->rx_ring[entry].status);
if (tulip_debug > 5)
printk(KERN_DEBUG "%s: In tulip_rx(), entry %d %8.8x.\n",
dev->name, entry, status);
if (--rx_work_limit < 0)
break;
if ((status & 0x38008300) != 0x0300) {
if ((status & 0x38000300) != 0x0300) {
/* Ingore earlier buffers. */
if ((status & 0xffff) != 0x7fff) {
if (tulip_debug > 1)
printk(KERN_WARNING "%s: Oversized Ethernet frame "
"spanned multiple buffers, status %8.8x!\n",
dev->name, status);
tp->stats.rx_length_errors++;
}
if((received <= 1 && mit_sel != NET_RX_DROP) && tp->mit_sel != 0 ) {
tp->mit_sel = 0;
tp->mit_change = 1; /* Force IM change */
} else if (status & RxDescFatalErr) {
/* There was a fatal error. */
if (tulip_debug > 2)
printk(KERN_DEBUG "%s: Receive error, Rx status %8.8x.\n",
dev->name, status);
tp->stats.rx_errors++; /* end of a packet.*/
if (status & 0x0890) tp->stats.rx_length_errors++;
if (status & 0x0004) tp->stats.rx_frame_errors++;
if (status & 0x0002) tp->stats.rx_crc_errors++;
if (status & 0x0001) tp->stats.rx_fifo_errors++;
}
} else {
/* Omit the four octet CRC from the length. */
short pkt_len = ((status >> 16) & 0x7ff) - 4;
struct sk_buff *skb;
#ifndef final_version
if (pkt_len > 1518) {
printk(KERN_WARNING "%s: Bogus packet size of %d (%#x).\n",
dev->name, pkt_len, pkt_len);
pkt_len = 1518;
tp->stats.rx_length_errors++;
}
#endif
return RX_RING_SIZE+1; /* maxrx+1 */
/* Check if the packet is long enough to accept without copying
to a minimally-sized skbuff. */
if (pkt_len < tulip_rx_copybreak
&& (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
skb->dev = dev;
skb_reserve(skb, 2); /* 16 byte align the IP header */
pci_dma_sync_single(tp->pdev,
tp->rx_buffers[entry].mapping,
pkt_len, PCI_DMA_FROMDEVICE);
#if ! defined(__alpha__)
eth_copy_and_sum(skb, tp->rx_buffers[entry].skb->tail,
pkt_len, 0);
skb_put(skb, pkt_len);
#else
return received;
memcpy(skb_put(skb, pkt_len),
tp->rx_buffers[entry].skb->tail,
pkt_len);
#endif
} else { /* Pass up the skb already on the Rx ring. */
char *temp = skb_put(skb = tp->rx_buffers[entry].skb,
pkt_len);
#ifndef final_version
if (tp->rx_buffers[entry].mapping !=
le32_to_cpu(tp->rx_ring[entry].buffer1)) {
printk(KERN_ERR "%s: Internal fault: The skbuff addresses "
"do not match in tulip_rx: %08x vs. %Lx %p / %p.\n",
dev->name,
le32_to_cpu(tp->rx_ring[entry].buffer1),
(long long)tp->rx_buffers[entry].mapping,
skb->head, temp);
}
#endif
pci_unmap_single(tp->pdev, tp->rx_buffers[entry].mapping,
PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
tp->rx_buffers[entry].skb = NULL;
tp->rx_buffers[entry].mapping = 0;
}
skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb);
dev->last_rx = jiffies;
tp->stats.rx_packets++;
tp->stats.rx_bytes += pkt_len;
}
received++;
entry = (++tp->cur_rx) % RX_RING_SIZE;
}
return received;
}
#endif /* CONFIG_TULIP_NAPI */
static inline unsigned int phy_interrupt (struct net_device *dev)
{
......@@ -323,7 +493,6 @@ irqreturn_t tulip_interrupt(int irq, void *dev_instance, struct pt_regs *regs)
struct tulip_private *tp = (struct tulip_private *)dev->priv;
long ioaddr = dev->base_addr;
int csr5;
int entry;
int missed;
int rx = 0;
int tx = 0;
......@@ -331,6 +500,11 @@ irqreturn_t tulip_interrupt(int irq, void *dev_instance, struct pt_regs *regs)
int maxrx = RX_RING_SIZE;
int maxtx = TX_RING_SIZE;
int maxoi = TX_RING_SIZE;
#ifdef CONFIG_TULIP_NAPI
int rxd = 0;
#else
int entry;
#endif
unsigned int work_count = tulip_max_interrupt_work;
unsigned int handled = 0;
......@@ -346,22 +520,41 @@ irqreturn_t tulip_interrupt(int irq, void *dev_instance, struct pt_regs *regs)
tp->nir++;
do {
#ifdef CONFIG_TULIP_NAPI
if (!rxd && (csr5 & (RxIntr | RxNoBuf))) {
rxd++;
/* Mask RX intrs and add the device to poll list. */
outl(tulip_tbl[tp->chip_id].valid_intrs&~RxPollInt, ioaddr + CSR7);
netif_rx_schedule(dev);
if (!(csr5&~(AbnormalIntr|NormalIntr|RxPollInt|TPLnkPass)))
break;
}
/* Acknowledge the interrupt sources we handle here ASAP
the poll function does Rx and RxNoBuf acking */
outl(csr5 & 0x0001ff3f, ioaddr + CSR5);
#else
/* Acknowledge all of the current interrupt sources ASAP. */
outl(csr5 & 0x0001ffff, ioaddr + CSR5);
if (tulip_debug > 4)
printk(KERN_DEBUG "%s: interrupt csr5=%#8.8x new csr5=%#8.8x.\n",
dev->name, csr5, inl(dev->base_addr + CSR5));
if (csr5 & (RxIntr | RxNoBuf)) {
#ifdef CONFIG_NET_HW_FLOWCONTROL
if ((!tp->fc_bit) ||
(!test_bit(tp->fc_bit, &netdev_fc_xoff)))
#endif
rx += tulip_rx(dev);
tulip_refill_rx(dev);
}
#endif /* CONFIG_TULIP_NAPI */
if (tulip_debug > 4)
printk(KERN_DEBUG "%s: interrupt csr5=%#8.8x new csr5=%#8.8x.\n",
dev->name, csr5, inl(dev->base_addr + CSR5));
if (csr5 & (TxNoBuf | TxDied | TxIntr | TimerInt)) {
unsigned int dirty_tx;
......@@ -462,16 +655,9 @@ irqreturn_t tulip_interrupt(int irq, void *dev_instance, struct pt_regs *regs)
}
if (csr5 & RxDied) { /* Missed a Rx frame. */
tp->stats.rx_missed_errors += inl(ioaddr + CSR8) & 0xffff;
#ifdef CONFIG_NET_HW_FLOWCONTROL
if (tp->fc_bit && !test_bit(tp->fc_bit, &netdev_fc_xoff)) {
tp->stats.rx_errors++;
tulip_start_rxtx(tp);
}
#else
tp->stats.rx_errors++;
tulip_start_rxtx(tp);
#endif
}
/*
* NB: t21142_lnk_change() does a del_timer_sync(), so be careful if this
* call is ever done under the spinlock
......@@ -504,10 +690,6 @@ irqreturn_t tulip_interrupt(int irq, void *dev_instance, struct pt_regs *regs)
if (tulip_debug > 2)
printk(KERN_ERR "%s: Re-enabling interrupts, %8.8x.\n",
dev->name, csr5);
#ifdef CONFIG_NET_HW_FLOWCONTROL
if (tp->fc_bit && (test_bit(tp->fc_bit, &netdev_fc_xoff)))
if (net_ratelimit()) printk("BUG!! enabling interrupt when FC off (timerintr.) \n");
#endif
outl(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR7);
tp->ttimer = 0;
oi++;
......@@ -520,16 +702,9 @@ irqreturn_t tulip_interrupt(int irq, void *dev_instance, struct pt_regs *regs)
/* Acknowledge all interrupt sources. */
outl(0x8001ffff, ioaddr + CSR5);
if (tp->flags & HAS_INTR_MITIGATION) {
#ifdef CONFIG_NET_HW_FLOWCONTROL
if(tp->mit_change) {
outl(mit_table[tp->mit_sel], ioaddr + CSR11);
tp->mit_change = 0;
}
#else
/* Josip Loncaric at ICASE did extensive experimentation
to develop a good interrupt mitigation setting.*/
outl(0x8b240000, ioaddr + CSR11);
#endif
} else if (tp->chip_id == LC82C168) {
/* the LC82C168 doesn't have a hw timer.*/
outl(0x00, ioaddr + CSR7);
......@@ -537,10 +712,8 @@ irqreturn_t tulip_interrupt(int irq, void *dev_instance, struct pt_regs *regs)
} else {
/* Mask all interrupting sources, set timer to
re-enable. */
#ifndef CONFIG_NET_HW_FLOWCONTROL
outl(((~csr5) & 0x0001ebef) | AbnormalIntr | TimerInt, ioaddr + CSR7);
outl(0x0012, ioaddr + CSR11);
#endif
}
break;
}
......@@ -550,6 +723,21 @@ irqreturn_t tulip_interrupt(int irq, void *dev_instance, struct pt_regs *regs)
break;
csr5 = inl(ioaddr + CSR5);
#ifdef CONFIG_TULIP_NAPI
if (rxd)
csr5 &= ~RxPollInt;
} while ((csr5 & (TxNoBuf |
TxDied |
TxIntr |
TimerInt |
/* Abnormal intr. */
RxDied |
TxFIFOUnderflow |
TxJabber |
TPLnkFail |
SytemError )) != 0);
#else
} while ((csr5 & (NormalIntr|AbnormalIntr)) != 0);
tulip_refill_rx(dev);
......@@ -574,6 +762,7 @@ irqreturn_t tulip_interrupt(int irq, void *dev_instance, struct pt_regs *regs)
}
}
}
#endif /* CONFIG_TULIP_NAPI */
if ((missed = inl(ioaddr + CSR8) & 0x1ffff)) {
tp->stats.rx_dropped += missed & 0x10000 ? 0x10000 : missed;
......
drivers/net/tulip/tulip.h
View file @ f5e52e1b
......@@ -126,6 +126,7 @@ enum pci_cfg_driver_reg {
CFDD_Snooze = (1 << 30),
};
#define RxPollInt (RxIntr|RxNoBuf|RxDied|RxJabber)
/* The bits in the CSR5 status registers, mostly interrupt sources. */
enum status_bits {
......@@ -251,9 +252,9 @@ enum t21143_csr6_bits {
Making the Tx ring too large decreases the effectiveness of channel
bonding and packet priority.
There are no ill effects from too-large receive rings. */
#define TX_RING_SIZE 16
#define RX_RING_SIZE 32
#define TX_RING_SIZE 32
#define RX_RING_SIZE 128
#define MEDIA_MASK 31
#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer. */
......@@ -343,17 +344,15 @@ struct tulip_private {
int flags;
struct net_device_stats stats;
struct timer_list timer; /* Media selection timer. */
struct timer_list oom_timer; /* Out of memory timer. */
u32 mc_filter[2];
spinlock_t lock;
spinlock_t mii_lock;
unsigned int cur_rx, cur_tx; /* The next free ring entry */
unsigned int dirty_rx, dirty_tx; /* The ring entries to be free()ed. */
#ifdef CONFIG_NET_HW_FLOWCONTROL
#define RX_A_NBF_STOP 0xffffff3f /* To disable RX and RX-NOBUF ints. */
int fc_bit;
int mit_sel;
int mit_change; /* Signal for Interrupt Mitigtion */
#ifdef CONFIG_TULIP_NAPI_HW_MITIGATION
int mit_on;
#endif
unsigned int full_duplex:1; /* Full-duplex operation requested. */
unsigned int full_duplex_lock:1;
......@@ -415,6 +414,10 @@ extern unsigned int tulip_max_interrupt_work;
extern int tulip_rx_copybreak;
irqreturn_t tulip_interrupt(int irq, void *dev_instance, struct pt_regs *regs);
int tulip_refill_rx(struct net_device *dev);
#ifdef CONFIG_TULIP_NAPI
int tulip_poll(struct net_device *dev, int *budget);
#endif
/* media.c */
int tulip_mdio_read(struct net_device *dev, int phy_id, int location);
......@@ -438,6 +441,7 @@ extern int tulip_debug;
extern const char * const medianame[];
extern const char tulip_media_cap[];
extern struct tulip_chip_table tulip_tbl[];
void oom_timer(unsigned long data);
extern u8 t21040_csr13[];
#ifndef USE_IO_OPS
......
drivers/net/tulip/tulip_core.c
View file @ f5e52e1b
......@@ -14,11 +14,17 @@
*/
#include <linux/config.h>
#define DRV_NAME "tulip"
#ifdef CONFIG_TULIP_NAPI
#define DRV_VERSION "1.1.13-NAPI" /* Keep at least for test */
#else
#define DRV_VERSION "1.1.13"
#endif
#define DRV_RELDATE "May 11, 2002"
#include <linux/config.h>
#include <linux/module.h>
#include "tulip.h"
#include <linux/pci.h>
......@@ -466,29 +472,16 @@ static void tulip_up(struct net_device *dev)
to an alternate media type. */
tp->timer.expires = RUN_AT(next_tick);
add_timer(&tp->timer);
}
#ifdef CONFIG_NET_HW_FLOWCONTROL
/* Enable receiver */
void tulip_xon(struct net_device *dev)
{
struct tulip_private *tp = (struct tulip_private *)dev->priv;
clear_bit(tp->fc_bit, &netdev_fc_xoff);
if (netif_running(dev)){
tulip_refill_rx(dev);
outl(tulip_tbl[tp->chip_id].valid_intrs, dev->base_addr+CSR7);
}
}
#ifdef CONFIG_TULIP_NAPI
init_timer(&tp->oom_timer);
tp->oom_timer.data = (unsigned long)dev;
tp->oom_timer.function = oom_timer;
#endif
}
static int
tulip_open(struct net_device *dev)
{
#ifdef CONFIG_NET_HW_FLOWCONTROL
struct tulip_private *tp = (struct tulip_private *)dev->priv;
#endif
int retval;
if ((retval = request_irq(dev->irq, &tulip_interrupt, SA_SHIRQ, dev->name, dev)))
......@@ -498,10 +491,6 @@ tulip_open(struct net_device *dev)
tulip_up (dev);
#ifdef CONFIG_NET_HW_FLOWCONTROL
tp->fc_bit = netdev_register_fc(dev, tulip_xon);
#endif
netif_start_queue (dev);
return 0;
......@@ -582,10 +571,7 @@ static void tulip_tx_timeout(struct net_device *dev)
#endif
/* Stop and restart the chip's Tx processes . */
#ifdef CONFIG_NET_HW_FLOWCONTROL
if (tp->fc_bit && test_bit(tp->fc_bit,&netdev_fc_xoff))
printk("BUG tx_timeout restarting rx when fc on\n");
#endif
tulip_restart_rxtx(tp);
/* Trigger an immediate transmit demand. */
outl(0, ioaddr + CSR1);
......@@ -742,7 +728,9 @@ static void tulip_down (struct net_device *dev)
unsigned long flags;
del_timer_sync (&tp->timer);
#ifdef CONFIG_TULIP_NAPI
del_timer_sync (&tp->oom_timer);
#endif
spin_lock_irqsave (&tp->lock, flags);
/* Disable interrupts by clearing the interrupt mask. */
......@@ -781,13 +769,6 @@ static int tulip_close (struct net_device *dev)
netif_stop_queue (dev);
#ifdef CONFIG_NET_HW_FLOWCONTROL
if (tp->fc_bit) {
int bit = tp->fc_bit;
tp->fc_bit = 0;
netdev_unregister_fc(bit);
}
#endif
tulip_down (dev);
if (tulip_debug > 1)
......@@ -1629,6 +1610,10 @@ static int __devinit tulip_init_one (struct pci_dev *pdev,
dev->hard_start_xmit = tulip_start_xmit;
dev->tx_timeout = tulip_tx_timeout;
dev->watchdog_timeo = TX_TIMEOUT;
#ifdef CONFIG_TULIP_NAPI
dev->poll = tulip_poll;
dev->weight = 16;
#endif
dev->stop = tulip_close;
dev->get_stats = tulip_get_stats;
dev->do_ioctl = private_ioctl;
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7