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Commit c5265e0f authored by Scott Feldman's avatar Scott Feldman Committed by Jeff Garzik
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e100 net driver: remove driver-isolated flag/lock. 

Other locks already cover the areas in question, and additionally
this lock was held in areas where it should not have been, triggering
error messages in 2.5.x.
parent 62d552e1
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Showing with 37 additions and 112 deletions
drivers/net/e100/e100.h
View file @ c5265e0f
......@@ -927,8 +927,6 @@ struct e100_private {
struct proc_dir_entry *proc_parent;
rwlock_t isolate_lock;
int driver_isolated;
char *id_string;
char *cable_status;
char *mdix_status;
......@@ -977,8 +975,7 @@ extern unsigned char e100_selftest(struct e100_private *bdp, u32 *st_timeout,
extern unsigned char e100_get_link_state(struct e100_private *bdp);
extern unsigned char e100_wait_scb(struct e100_private *bdp);
extern void e100_deisolate_driver(struct e100_private *bdp,
u8 recover, u8 full_reset);
extern void e100_deisolate_driver(struct e100_private *bdp, u8 full_reset);
extern unsigned char e100_hw_reset_recover(struct e100_private *bdp,
u32 reset_cmd);
......
drivers/net/e100/e100_main.c
View file @ c5265e0f
......@@ -135,7 +135,7 @@ static void e100_non_tx_background(unsigned long);
/* Global Data structures and variables */
char e100_copyright[] __devinitdata = "Copyright (c) 2002 Intel Corporation";
char e100_driver_version[]="2.1.24-k1";
char e100_driver_version[]="2.1.24-k2";
const char *e100_full_driver_name = "Intel(R) PRO/100 Network Driver";
char e100_short_driver_name[] = "e100";
static int e100nics = 0;
......@@ -935,13 +935,6 @@ e100_open(struct net_device *dev)
bdp = dev->priv;
read_lock(&(bdp->isolate_lock));
if (bdp->driver_isolated) {
rc = -EBUSY;
goto exit;
}
/* setup the tcb pool */
if (!e100_alloc_tcb_pool(bdp)) {
rc = -ENOMEM;
......@@ -990,7 +983,6 @@ e100_open(struct net_device *dev)
err_exit:
e100_clear_pools(bdp);
exit:
read_unlock(&(bdp->isolate_lock));
return rc;
}
......@@ -1008,9 +1000,6 @@ e100_close(struct net_device *dev)
free_irq(dev->irq, dev);
e100_clear_pools(bdp);
/* set the isolate flag to false, so e100_open can be called */
bdp->driver_isolated = false;
return 0;
}
......@@ -1031,13 +1020,6 @@ e100_xmit_frame(struct sk_buff *skb, struct net_device *dev)
int notify_stop = false;
struct e100_private *bdp = dev->priv;
read_lock(&(bdp->isolate_lock));
if (bdp->driver_isolated) {
rc = -EBUSY;
goto exit2;
}
if (!spin_trylock(&bdp->bd_non_tx_lock)) {
notify_stop = true;
rc = 1;
......@@ -1060,7 +1042,6 @@ e100_xmit_frame(struct sk_buff *skb, struct net_device *dev)
exit1:
spin_unlock(&bdp->bd_non_tx_lock);
exit2:
read_unlock(&(bdp->isolate_lock));
if (notify_stop) {
netif_stop_queue(dev);
}
......@@ -1115,18 +1096,11 @@ e100_set_mac(struct net_device *dev, void *addr)
bdp = dev->priv;
read_lock(&(bdp->isolate_lock));
if (bdp->driver_isolated) {
goto exit;
}
if (e100_setup_iaaddr(bdp, (u8 *) (p_sockaddr->sa_data))) {
memcpy(&(dev->dev_addr[0]), p_sockaddr->sa_data, ETH_ALEN);
rc = 0;
}
exit:
read_unlock(&(bdp->isolate_lock));
return rc;
}
......@@ -1180,10 +1154,6 @@ e100_set_multi(struct net_device *dev)
unsigned char promisc_enbl;
unsigned char mulcast_enbl;
read_lock(&(bdp->isolate_lock));
if (bdp->driver_isolated) {
goto exit;
}
promisc_enbl = ((dev->flags & IFF_PROMISC) == IFF_PROMISC);
mulcast_enbl = ((dev->flags & IFF_ALLMULTI) ||
(dev->mc_count > MAX_MULTICAST_ADDRS));
......@@ -1195,14 +1165,11 @@ e100_set_multi(struct net_device *dev)
e100_config(bdp);
if (promisc_enbl || mulcast_enbl) {
goto exit; /* no need for Multicast Cmd */
return; /* no need for Multicast Cmd */
}
/* get the multicast CB */
e100_set_multi_exec(dev);
exit:
read_unlock(&(bdp->isolate_lock));
}
static int
......@@ -1308,8 +1275,6 @@ e100_sw_init(struct e100_private *bdp)
spin_lock_init(&(bdp->bd_non_tx_lock));
spin_lock_init(&(bdp->config_lock));
spin_lock_init(&(bdp->mdi_access_lock));
bdp->isolate_lock = RW_LOCK_UNLOCKED;
bdp->driver_isolated = false;
return 1;
}
......@@ -1625,12 +1590,8 @@ e100_watchdog(struct net_device *dev)
{
struct e100_private *bdp = dev->priv;
read_lock(&(bdp->isolate_lock));
if (bdp->driver_isolated) {
goto exit;
}
if (!netif_running(dev)) {
goto exit;
return;
}
e100_get_mdix_status(bdp);
......@@ -1721,9 +1682,6 @@ e100_watchdog(struct net_device *dev)
if (list_empty(&bdp->active_rx_list))
e100_trigger_SWI(bdp);
exit:
read_unlock(&(bdp->isolate_lock));
}
/**
......@@ -1828,11 +1786,6 @@ e100intr(int irq, void *dev_inst, struct pt_regs *regs)
return;
}
read_lock(&(bdp->isolate_lock));
if (bdp->driver_isolated) {
goto exit;
}
/* SWI intr (triggered by watchdog) is signal to allocate new skb buffers */
if (intr_status & SCB_STATUS_ACK_SWI) {
e100_alloc_skbs(bdp);
......@@ -1849,9 +1802,7 @@ e100intr(int irq, void *dev_inst, struct pt_regs *regs)
e100_tx_srv(bdp);
}
exit:
e100_set_intr_mask(bdp);
read_unlock(&(bdp->isolate_lock));
}
/**
......@@ -2656,7 +2607,7 @@ e100_exec_non_cu_cmd(struct e100_private *bdp, nxmit_cb_entry_t *command)
if (in_interrupt())
return e100_delayed_exec_non_cu_cmd(bdp, command);
if (netif_running(bdp->device) && (!bdp->driver_isolated))
if (netif_running(bdp->device) && netif_carrier_ok(bdp->device))
return e100_delayed_exec_non_cu_cmd(bdp, command);
spin_lock_bh(&(bdp->bd_non_tx_lock));
......@@ -3054,33 +3005,32 @@ e100_pci_setup(struct pci_dev *pcid, struct e100_private *bdp)
void
e100_isolate_driver(struct e100_private *bdp)
{
write_lock_irq(&(bdp->isolate_lock));
bdp->driver_isolated = true;
write_unlock_irq(&(bdp->isolate_lock));
del_timer_sync(&bdp->watchdog_timer);
del_timer_sync(&bdp->hwi_timer);
/* If in middle of cable diag, */
if (bdp->hwi_started) {
bdp->hwi_started = 0;
e100_hwi_restore(bdp);
}
if (netif_running(bdp->device))
netif_stop_queue(bdp->device);
bdp->last_tcb = NULL;
if (netif_running(bdp->device)) {
e100_dis_intr(bdp);
del_timer_sync(&bdp->watchdog_timer);
del_timer_sync(&bdp->hwi_timer);
/* If in middle of cable diag, */
if (bdp->hwi_started) {
bdp->hwi_started = 0;
e100_hwi_restore(bdp);
}
netif_carrier_off(bdp->device);
netif_stop_queue(bdp->device);
bdp->last_tcb = NULL;
}
e100_sw_reset(bdp, PORT_SELECTIVE_RESET);
}
void
e100_set_speed_duplex(struct e100_private *bdp)
{
if (netif_carrier_ok(bdp->device))
e100_isolate_driver(bdp);
e100_phy_set_speed_duplex(bdp, true);
e100_config_fc(bdp); /* re-config flow-control if necessary */
e100_config(bdp);
if (netif_carrier_ok(bdp->device))
e100_deisolate_driver(bdp, false);
}
static void
......@@ -3160,29 +3110,21 @@ e100_hw_reset_recover(struct e100_private *bdp, u32 reset_cmd)
}
void
e100_deisolate_driver(struct e100_private *bdp, u8 recover, u8 full_init)
e100_deisolate_driver(struct e100_private *bdp, u8 full_reset)
{
if (full_init) {
e100_sw_reset(bdp, PORT_SOFTWARE_RESET);
if (!e100_hw_reset_recover(bdp, PORT_SOFTWARE_RESET))
printk(KERN_ERR "e100: e100_deisolate_driver:"
" HW SOFTWARE reset recover failed\n");
}
u32 cmd = full_reset ? PORT_SOFTWARE_RESET : PORT_SELECTIVE_RESET;
e100_sw_reset(bdp, cmd);
if (cmd == PORT_SOFTWARE_RESET) {
if (!e100_hw_reset_recover(bdp, cmd))
printk(KERN_ERR "e100: e100_deisolate_driver:"
" device configuration failed\n");
}
if (recover) {
if (netif_running(bdp->device)) {
bdp->next_cu_cmd = START_WAIT;
bdp->last_tcb = NULL;
/* lets reset the chip */
if (!full_init) {
e100_sw_reset(bdp, PORT_SELECTIVE_RESET);
if (!e100_hw_reset_recover(bdp, PORT_SELECTIVE_RESET)) {
printk(KERN_ERR "e100: e100_deisolate_driver:"
" HW reset recover failed\n");
}
}
e100_start_ru(bdp);
/* relaunch watchdog timer in 2 sec */
......@@ -3192,14 +3134,9 @@ e100_deisolate_driver(struct e100_private *bdp, u8 recover, u8 full_init)
// or have unsent frames on the tcb chain
e100_tcb_add_C_bit(bdp);
e100_tx_srv(bdp);
netif_wake_queue(bdp->device);
e100_set_intr_mask(bdp);
if (netif_running(bdp->device))
netif_wake_queue(bdp->device);
}
bdp->driver_isolated = false;
}
static int
......@@ -4165,22 +4102,17 @@ e100_resume(struct pci_dev *pcid)
{
struct net_device *netdev = pci_get_drvdata(pcid);
struct e100_private *bdp = netdev->priv;
u8 recover = false;
u8 full_init = false;
u8 full_reset = false;
pci_set_power_state(pcid, 0);
pci_enable_wake(pcid, 0, 0); /* Clear PME status and disable PME */
pci_restore_state(pcid, bdp->pci_state);
if (netif_running(netdev)) {
recover = true;
}
if (bdp->wolopts & (WAKE_UCAST | WAKE_ARP)) {
full_init = true;
full_reset = true;
}
e100_deisolate_driver(bdp, recover, full_init);
e100_deisolate_driver(bdp, full_reset);
return 0;
}
......
drivers/net/e100/e100_test.c
View file @ c5265e0f
......@@ -95,12 +95,8 @@ e100_run_diag(struct net_device *dev, u64 *test_info, u32 flags)
test_info [E100_EEPROM_TEST_FAIL] = true;
}
/* fully recover only if the device is open*/
if (netif_running(dev)) {
e100_deisolate_driver(bdp, true, false);
} else {
e100_deisolate_driver(bdp, false, false);
}
e100_deisolate_driver(bdp, false);
/*Let card recover from the test*/
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(HZ * 2);
......
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