Merge bk://kernel.bkbits.net/jgarzik/net-drivers-2.5

into home.transmeta.com:/home/torvalds/v2.5/linux

drivers/net/arcnet/arcnet.c

@@ -671,7 +671,7 @@ static void arcnet_timeout(struct net_device *dev)
  * interrupts. Establish which device needs attention, and call the correct
  * chipset interrupt handler.
  */
-void arcnet_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+irqreturn_t arcnet_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct net_device *dev = dev_id;
 	struct arcnet_local *lp;
@@ -696,7 +696,7 @@ void arcnet_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 			ACOMMAND(CFLAGScmd | RESETclear);
 		AINTMASK(0);
 		spin_unlock(&arcnet_lock);
-		return;
+		return IRQ_HANDLED;
 	}
 
 	BUGMSG(D_DURING, "in arcnet_inthandler (status=%Xh, intmask=%Xh)\n",
@@ -864,6 +864,7 @@ void arcnet_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 	AINTMASK(lp->intmask);
 	
 	spin_unlock(&arcnet_lock);
+	return IRQ_RETVAL(didsomething);
 }
 
 

drivers/net/e100/e100.h

@@ -60,7 +60,14 @@
 #include <linux/if_vlan.h>
 #include <linux/mii.h>
 
-#define E100_REGS_LEN 1
+#define E100_CABLE_UNKNOWN	0
+#define E100_CABLE_OK		1		
+#define E100_CABLE_OPEN_NEAR	2	/* Open Circuit Near End  */
+#define E100_CABLE_OPEN_FAR	3	/* Open Circuit Far End   */
+#define E100_CABLE_SHORT_NEAR	4	/* Short Circuit Near End */
+#define E100_CABLE_SHORT_FAR	5	/* Short Circuit Far End  */
+
+#define E100_REGS_LEN 2
 /*
  *  Configure parameters for buffers per controller.
  *  If the machine this is being used on is a faster machine (i.e. > 150MHz)
@@ -105,8 +112,6 @@
 #define E100_MAX_CU_IDLE_WAIT	50	/* Max udelays in wait_cus_idle */
 
 /* HWI feature related constant */
-#define HWI_MAX_LOOP                    100
-#define MAX_SAME_RESULTS		3
 #define HWI_REGISTER_GRANULARITY        80	/* register granularity = 80 Cm */
 #define HWI_NEAR_END_BOUNDARY           1000	/* Near end is defined as < 10 meters */
 
@@ -942,7 +947,6 @@ struct e100_private {
 #ifdef CONFIG_PM
 	u32 pci_state[16];
 #endif
-	char ifname[IFNAMSIZ];
 #ifdef E100_CU_DEBUG	
 	u8 last_cmd;
 	u8 last_sub_cmd;
@@ -956,7 +960,10 @@ struct e100_private {
 #define E100_SPEED_100_FULL 4
 
 /********* function prototypes *************/
+extern int e100_open(struct net_device *);
+extern int e100_close(struct net_device *);
 extern void e100_isolate_driver(struct e100_private *bdp);
+extern unsigned char e100_hw_init(struct e100_private *);
 extern void e100_sw_reset(struct e100_private *bdp, u32 reset_cmd);
 extern u8 e100_start_cu(struct e100_private *bdp, tcb_t *tcb);
 extern void e100_free_non_tx_cmd(struct e100_private *bdp,
@@ -981,14 +988,13 @@ extern unsigned char e100_cu_unknown_state(struct e100_private *bdp);
 #define TEST_TIMEOUT		0x08
 
 enum test_offsets {
-	E100_EEPROM_TEST_FAIL = 0,
-	E100_CHIP_TIMEOUT,
-	E100_ROM_TEST_FAIL,
-	E100_REG_TEST_FAIL,
-	E100_MAC_TEST_FAIL,
-	E100_LPBK_MAC_FAIL,
-	E100_LPBK_PHY_FAIL,
-	E100_MAX_TEST_RES
+	test_link,
+	test_eeprom,
+	test_self_test,
+	test_loopback_mac,
+	test_loopback_phy,
+	cable_diag,
+	max_test_res,  /* must be last */
 };
 
 #endif

drivers/net/e100/e100_phy.c

@@ -628,8 +628,6 @@ e100_force_speed_duplex(struct e100_private *bdp)
 	u16 control;
 	unsigned long expires;
 
-	e100_phy_reset(bdp);
-
 	bdp->flags |= DF_SPEED_FORCED;
 
 	e100_mdi_read(bdp, MII_BMCR, bdp->phy_addr, &control);
@@ -912,6 +910,10 @@ e100_phy_reset(struct e100_private *bdp)
 	u16 ctrl_reg;
 	ctrl_reg = BMCR_RESET;
 	e100_mdi_write(bdp, MII_BMCR, bdp->phy_addr, ctrl_reg);
+	/* ieee 802.3 : The reset process shall be completed       */
+	/* within 0.5 seconds from the settting of PHY reset bit.  */
+	set_current_state(TASK_UNINTERRUPTIBLE);
+	schedule_timeout(HZ / 2);
 }
 
 unsigned char __devinit
@@ -928,6 +930,7 @@ e100_phy_init(struct e100_private *bdp)
 	bdp->PhyDelay = 0;
 	bdp->zlock_state = ZLOCK_INITIAL;
 
+	e100_phy_reset(bdp);
 	e100_phy_set_speed_duplex(bdp, false);
 	e100_fix_polarity(bdp);
 

drivers/net/e100/e100_test.c

@@ -25,7 +25,7 @@
   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *******************************************************************************/
 
-#include "e100.h"
+#include "e100_phy.h"
 #include "e100_config.h"
 
 extern u16 e100_eeprom_read(struct e100_private *, u16);
@@ -46,6 +46,7 @@ static u8 e100_diag_loopback_alloc(struct e100_private *);
 static void e100_diag_loopback_cu_ru_exec(struct e100_private *);
 static u8 e100_diag_check_pkt(u8 *);
 static void e100_diag_loopback_free(struct e100_private *);
+static int e100_cable_diag(struct e100_private *bdp);
 
 #define LB_PACKET_SIZE 1500
 
@@ -60,46 +61,52 @@ u32
 e100_run_diag(struct net_device *dev, u64 *test_info, u32 flags)
 {
 	struct e100_private* bdp = dev->priv;
-	u8 test_result = true;
-
-	e100_isolate_driver(bdp);
+	u8 test_result = 0;
 
+	if (!e100_get_link_state(bdp)) {
+		test_result = ETH_TEST_FL_FAILED;
+		test_info[test_link] = true;
+	}
+	if (!e100_diag_eeprom(dev)) {
+		test_result = ETH_TEST_FL_FAILED;
+		test_info[test_eeprom] = true;
+	}
 	if (flags & ETH_TEST_FL_OFFLINE) {
 		u8 fail_mask;
-		
-		fail_mask = e100_diag_selftest(dev);
-		if (fail_mask) {
-			test_result = false;
-			if (fail_mask & REGISTER_TEST_FAIL)
-				test_info [E100_REG_TEST_FAIL] = true;
-			if (fail_mask & ROM_TEST_FAIL)
-				test_info [E100_ROM_TEST_FAIL] = true;
-			if (fail_mask & SELF_TEST_FAIL)
-				test_info [E100_MAC_TEST_FAIL] = true;
-			if (fail_mask & TEST_TIMEOUT)
-				test_info [E100_CHIP_TIMEOUT] = true;
+		if (netif_running(dev)) {
+			spin_lock_bh(&dev->xmit_lock);
+			e100_close(dev);
+			spin_unlock_bh(&dev->xmit_lock);
+		}
+		if (e100_diag_selftest(dev)) {
+			test_result = ETH_TEST_FL_FAILED;
+			test_info[test_self_test] = true;
 		}
 
 		fail_mask = e100_diag_loopback(dev);
 		if (fail_mask) {
-			test_result = false;
+			test_result = ETH_TEST_FL_FAILED;
 			if (fail_mask & PHY_LOOPBACK)
-				test_info [E100_LPBK_PHY_FAIL] = true;
+				test_info[test_loopback_phy] = true;
 			if (fail_mask & MAC_LOOPBACK)
-				test_info [E100_LPBK_MAC_FAIL] = true;
+				test_info[test_loopback_mac] = true;
 		}
-	}
 
-	if (!e100_diag_eeprom(dev)) {
-		test_result = false;
-		test_info [E100_EEPROM_TEST_FAIL] = true;
+		test_info[cable_diag] = e100_cable_diag(bdp);
+		/* Need hw init regardless of netif_running */
+		e100_hw_init(bdp);
+		if (netif_running(dev)) {
+			e100_open(dev);
+		}
+	}
+	else {
+		test_info[test_self_test] = false;
+		test_info[test_loopback_phy] = false;
+		test_info[test_loopback_mac] = false;
+		test_info[cable_diag] = false;
 	}
 
-	set_current_state(TASK_UNINTERRUPTIBLE);
-	schedule_timeout(HZ * 2);
-    	e100_deisolate_driver(bdp, false);
-
-	return flags | (test_result ? 0 : ETH_TEST_FL_FAILED);
+	return flags | test_result;
 }
 
 /**
@@ -126,8 +133,6 @@ e100_diag_selftest(struct net_device *dev)
 		}
 	}
 
-	e100_configure_device(bdp);
-
 	return retval;
 }
 
@@ -165,14 +170,14 @@ e100_diag_loopback (struct net_device *dev)
 	u8 rc = 0;
 
 	printk(KERN_DEBUG "%s: PHY loopback test starts\n", dev->name);
-	e100_sw_reset(dev->priv, PORT_SELECTIVE_RESET);
+	e100_hw_init(dev->priv);
 	if (!e100_diag_one_loopback(dev, PHY_LOOPBACK)) {
 		rc |= PHY_LOOPBACK;
 	}
 	printk(KERN_DEBUG "%s: PHY loopback test ends\n", dev->name);
 
 	printk(KERN_DEBUG "%s: MAC loopback test starts\n", dev->name);
-	e100_sw_reset(dev->priv, PORT_SELECTIVE_RESET);
+	e100_hw_init(dev->priv);
 	if (!e100_diag_one_loopback(dev, MAC_LOOPBACK)) {
 		rc |= MAC_LOOPBACK;
 	}
@@ -257,15 +262,10 @@ e100_diag_config_loopback(struct e100_private* bdp,
 		if (set_loopback)
                         /* Set PHY loopback mode */
                         e100_phy_set_loopback(bdp);
-                else {	/* Back to normal speed and duplex */
-                	if (bdp->params.e100_speed_duplex == E100_AUTONEG)
-				/* Reset PHY and do autoneg */
-                        	e100_phy_autoneg(bdp);
-			else    
-				/* Reset PHY and force speed and duplex */
-				e100_force_speed_duplex(bdp);
-		}
-                /* Wait for PHY state change */
+		else
+			/* Reset PHY loopback mode */
+			e100_phy_reset(bdp);	
+		/* Wait for PHY state change */
 		set_current_state(TASK_UNINTERRUPTIBLE);
                 schedule_timeout(HZ);
 	} else { /* For MAC loopback wait 500 msec to take effect */
@@ -348,10 +348,6 @@ static void
 e100_diag_loopback_cu_ru_exec(struct e100_private *bdp)
 {
 	/*load CU & RU base */ 
-	if (!e100_wait_exec_cmplx(bdp, 0, SCB_CUC_LOAD_BASE, 0))
-		printk(KERN_ERR "e100: SCB_CUC_LOAD_BASE failed\n");
-	if(!e100_wait_exec_cmplx(bdp, 0, SCB_RUC_LOAD_BASE, 0))
-		printk(KERN_ERR "e100: SCB_RUC_LOAD_BASE failed!\n");
 	if(!e100_wait_exec_cmplx(bdp, bdp->loopback.dma_handle, SCB_RUC_START, 0))
 		printk(KERN_ERR "e100: SCB_RUC_START failed!\n");
 
@@ -433,3 +429,72 @@ e100_diag_loopback_free (struct e100_private *bdp)
 			    bdp->loopback.dma_handle);
 }
 
+static int
+e100_cable_diag(struct e100_private *bdp)
+{	
+	int saved_open_circut = 0xffff;
+	int saved_short_circut = 0xffff;
+	int saved_distance = 0xffff;
+	int saved_same = 0;
+	int cable_status = E100_CABLE_UNKNOWN;
+	int i;
+	
+	/* If we have link, */	
+	if (e100_get_link_state(bdp))
+		return E100_CABLE_OK;
+	
+	if (bdp->rev_id < D102_REV_ID)
+		return E100_CABLE_UNKNOWN;
+
+	/* Disable MDI/MDI-X auto switching */
+        e100_mdi_write(bdp, MII_NCONFIG, bdp->phy_addr,
+		MDI_MDIX_RESET_ALL_MASK);
+	/* Set to 100 Full as required by cable test */
+	e100_mdi_write(bdp, MII_BMCR, bdp->phy_addr,
+		BMCR_SPEED100 | BMCR_FULLDPLX);
+
+	/* Test up to 100 times */
+	for (i = 0; i < 100; i++) {
+		u16 ctrl_reg;
+		int distance, open_circut, short_circut, near_end;
+
+		/* Enable and execute cable test */
+		e100_mdi_write(bdp, HWI_CONTROL_REG, bdp->phy_addr,
+			(HWI_TEST_ENABLE | HWI_TEST_EXECUTE));
+		/* Wait for cable test finished */
+		set_current_state(TASK_UNINTERRUPTIBLE);
+		schedule_timeout(HZ/100 + 1);
+		/* Read results */
+		e100_mdi_read(bdp, HWI_CONTROL_REG, bdp->phy_addr, &ctrl_reg);
+		distance = ctrl_reg & HWI_TEST_DISTANCE;
+		open_circut = ctrl_reg & HWI_TEST_HIGHZ_PROBLEM;
+		short_circut = ctrl_reg & HWI_TEST_LOWZ_PROBLEM;
+
+		if ((distance == saved_distance) &&
+	    	    (open_circut == saved_open_circut) &&
+	    	    (short_circut == saved_short_circut)) 
+			saved_same++;
+		else {
+			saved_same = 0;
+			saved_distance = distance;
+			saved_open_circut = open_circut;
+			saved_short_circut = short_circut;
+		}
+		/* If results are the same 3 times */
+		if (saved_same == 3) {
+			near_end = ((distance * HWI_REGISTER_GRANULARITY) <
+			       HWI_NEAR_END_BOUNDARY);
+			if (open_circut)
+				cable_status = (near_end) ? 
+					E100_CABLE_OPEN_NEAR : E100_CABLE_OPEN_FAR;
+			if (short_circut)
+				cable_status = (near_end) ?
+					E100_CABLE_SHORT_NEAR : E100_CABLE_SHORT_FAR;
+			break;
+		}
+	}
+	/* Reset cable test */
+        e100_mdi_write(bdp, HWI_CONTROL_REG, bdp->phy_addr,					       HWI_RESET_ALL_MASK);
+	return cable_status;
+}
+

drivers/net/e1000/Makefile

 ################################################################################
 #
 # 
-# Copyright(c) 1999 - 2002 Intel Corporation. All rights reserved.
+# Copyright(c) 1999 - 2003 Intel Corporation. All rights reserved.
 # 
 # This program is free software; you can redistribute it and/or modify it 
 # under the terms of the GNU General Public License as published by the Free 

drivers/net/e1000/e1000.h

@@ -134,6 +134,7 @@ struct e1000_buffer {
 	uint64_t dma;
 	unsigned long length;
 	unsigned long time_stamp;
+	unsigned int next_to_watch;
 };
 
 struct e1000_desc_ring {
@@ -169,7 +170,6 @@ struct e1000_adapter {
 	struct timer_list watchdog_timer;
 	struct timer_list phy_info_timer;
 	struct vlan_group *vlgrp;
-	char *id_string;
 	uint32_t bd_number;
 	uint32_t rx_buffer_len;
 	uint32_t part_num;
@@ -218,6 +218,9 @@ struct e1000_adapter {
 	struct e1000_phy_info phy_info;
 	struct e1000_phy_stats phy_stats;
 
+	uint32_t test_icr;
+	struct e1000_desc_ring test_tx_ring;
+	struct e1000_desc_ring test_rx_ring;
 
 
 	uint32_t pci_state[16];

drivers/net/e1000/e1000_hw.c

@@ -185,6 +185,7 @@ e1000_set_mac_type(struct e1000_hw *hw)
         break;
     case E1000_DEV_ID_82546EB_COPPER:
     case E1000_DEV_ID_82546EB_FIBER:
+    case E1000_DEV_ID_82546EB_QUAD_COPPER:
         hw->mac_type = e1000_82546;
         break;
     case E1000_DEV_ID_82541EI:
@@ -288,9 +289,7 @@ e1000_reset_hw(struct e1000_hw *hw)
         /* Configure activity LED after PHY reset */
         led_ctrl = E1000_READ_REG(hw, LEDCTL);
         led_ctrl &= IGP_ACTIVITY_LED_MASK;
-        led_ctrl |= IGP_ACTIVITY_LED_ENABLE;
-        if(hw->mac_type == e1000_82547)
-            led_ctrl |= IGP_LED3_MODE;
+        led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE);
         E1000_WRITE_REG(hw, LEDCTL, led_ctrl);
     }
 
@@ -737,9 +736,7 @@ e1000_setup_copper_link(struct e1000_hw *hw)
         /* Configure activity LED after PHY reset */
         led_ctrl = E1000_READ_REG(hw, LEDCTL);
         led_ctrl &= IGP_ACTIVITY_LED_MASK;
-        led_ctrl |= IGP_ACTIVITY_LED_ENABLE;
-        if(hw->mac_type == e1000_82547)
-            led_ctrl |= IGP_LED3_MODE;
+        led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE);
         E1000_WRITE_REG(hw, LEDCTL, led_ctrl);
 
         if(hw->autoneg_advertised == ADVERTISE_1000_FULL) {
@@ -2293,9 +2290,7 @@ e1000_phy_hw_reset(struct e1000_hw *hw)
         /* Configure activity LED after PHY reset */
         led_ctrl = E1000_READ_REG(hw, LEDCTL);
         led_ctrl &= IGP_ACTIVITY_LED_MASK;
-        led_ctrl |= IGP_ACTIVITY_LED_ENABLE;
-        if(hw->mac_type == e1000_82547)
-            led_ctrl |= IGP_LED3_MODE;
+        led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE);
         E1000_WRITE_REG(hw, LEDCTL, led_ctrl);
     }
 }
@@ -3801,6 +3796,7 @@ e1000_setup_led(struct e1000_hw *hw)
     case E1000_DEV_ID_82540EM_LOM:
     case E1000_DEV_ID_82545EM_COPPER:
     case E1000_DEV_ID_82546EB_COPPER:
+    case E1000_DEV_ID_82546EB_QUAD_COPPER:
     case E1000_DEV_ID_82541EI:
     case E1000_DEV_ID_82541EP:
     case E1000_DEV_ID_82547EI:
@@ -3842,6 +3838,7 @@ e1000_cleanup_led(struct e1000_hw *hw)
     case E1000_DEV_ID_82545EM_FIBER:
     case E1000_DEV_ID_82546EB_COPPER:
     case E1000_DEV_ID_82546EB_FIBER:
+    case E1000_DEV_ID_82546EB_QUAD_COPPER:
     case E1000_DEV_ID_82541EI:
     case E1000_DEV_ID_82541EP:
     case E1000_DEV_ID_82547EI:
@@ -3896,6 +3893,7 @@ e1000_led_on(struct e1000_hw *hw)
     case E1000_DEV_ID_82540EM_LOM:
     case E1000_DEV_ID_82545EM_COPPER:
     case E1000_DEV_ID_82546EB_COPPER:
+    case E1000_DEV_ID_82546EB_QUAD_COPPER:
     case E1000_DEV_ID_82541EI:
     case E1000_DEV_ID_82541EP:
     case E1000_DEV_ID_82547EI:
@@ -3949,6 +3947,7 @@ e1000_led_off(struct e1000_hw *hw)
     case E1000_DEV_ID_82540EM_LOM:
     case E1000_DEV_ID_82545EM_COPPER:
     case E1000_DEV_ID_82546EB_COPPER:
+    case E1000_DEV_ID_82546EB_QUAD_COPPER:
     case E1000_DEV_ID_82541EI:
     case E1000_DEV_ID_82541EP:
     case E1000_DEV_ID_82547EI:
@@ -4206,7 +4205,11 @@ e1000_get_bus_info(struct e1000_hw *hw)
     status = E1000_READ_REG(hw, STATUS);
     hw->bus_type = (status & E1000_STATUS_PCIX_MODE) ?
                    e1000_bus_type_pcix : e1000_bus_type_pci;
-    if(hw->bus_type == e1000_bus_type_pci) {
+
+    if(hw->device_id == E1000_DEV_ID_82546EB_QUAD_COPPER) {
+        hw->bus_speed = (hw->bus_type == e1000_bus_type_pci) ?
+                        e1000_bus_speed_66 : e1000_bus_speed_120;
+    } else if(hw->bus_type == e1000_bus_type_pci) {
         hw->bus_speed = (status & E1000_STATUS_PCI66) ?
                         e1000_bus_speed_66 : e1000_bus_speed_33;
     } else {

drivers/net/e1000/e1000_hw.h

@@ -99,6 +99,7 @@ typedef enum {
     e1000_bus_speed_33,
     e1000_bus_speed_66,
     e1000_bus_speed_100,
+    e1000_bus_speed_120,
     e1000_bus_speed_133,
     e1000_bus_speed_reserved
 } e1000_bus_speed;
@@ -314,10 +315,11 @@ void e1000_write_reg_io(struct e1000_hw *hw, uint32_t offset, uint32_t value);
 #define E1000_DEV_ID_82545EM_FIBER       0x1011
 #define E1000_DEV_ID_82546EB_COPPER      0x1010
 #define E1000_DEV_ID_82546EB_FIBER       0x1012
+#define E1000_DEV_ID_82546EB_QUAD_COPPER 0x101D
 #define E1000_DEV_ID_82541EI             0x1013
 #define E1000_DEV_ID_82541EP             0x1018
 #define E1000_DEV_ID_82547EI             0x1019
-#define NUM_DEV_IDS 19
+#define NUM_DEV_IDS 20
 
 #define NODE_ADDRESS_SIZE 6
 #define ETH_LENGTH_OF_ADDRESS 6
@@ -601,7 +603,7 @@ struct e1000_ffvt_entry {
 #define E1000_EECD     0x00010  /* EEPROM/Flash Control - RW */
 #define E1000_EERD     0x00014  /* EEPROM Read - RW */
 #define E1000_CTRL_EXT 0x00018  /* Extended Device Control - RW */
-#define E1000_FLA      0x0001C  /* Flash Access Register - RW */
+#define E1000_FLA      0x0001C  /* Flash Access - RW */
 #define E1000_MDIC     0x00020  /* MDI Control - RW */
 #define E1000_FCAL     0x00028  /* Flow Control Address Low - RW */
 #define E1000_FCAH     0x0002C  /* Flow Control Address High -RW */
@@ -730,6 +732,7 @@ struct e1000_ffvt_entry {
  * the registers function in the same manner.
  */
 #define E1000_82542_CTRL     E1000_CTRL
+#define E1000_82542_CTRL_DUP E1000_CTRL_DUP
 #define E1000_82542_STATUS   E1000_STATUS
 #define E1000_82542_EECD     E1000_EECD
 #define E1000_82542_EERD     E1000_EERD
@@ -1485,7 +1488,6 @@ struct e1000_hw {
 #define E1000_COLLISION_DISTANCE        64
 #define E1000_FDX_COLLISION_DISTANCE    E1000_COLLISION_DISTANCE
 #define E1000_HDX_COLLISION_DISTANCE    E1000_COLLISION_DISTANCE
-#define E1000_GB_HDX_COLLISION_DISTANCE 512
 #define E1000_COLD_SHIFT                12
 
 /* The number of Transmit and Receive Descriptors must be a multiple of 8 */

drivers/net/fc/iph5526.c

@@ -134,7 +134,7 @@ clone_list[] __initdata  = {
 	{0,}
 };
 
-static void tachyon_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+static irqreturn_t tachyon_interrupt(int irq, void *dev_id, struct pt_regs *regs);
 static void tachyon_interrupt_handler(int irq, void* dev_id, struct pt_regs* regs);
 
 static int initialize_register_pointers(struct fc_info *fi);
@@ -623,7 +623,7 @@ u_int bus_addr, bus_indx_addr, i;
 }
 
 
-static void tachyon_interrupt(int irq, void* dev_id, struct pt_regs* regs)
+static irqreturn_t tachyon_interrupt(int irq, void* dev_id, struct pt_regs* regs)
 {
 struct Scsi_Host *host = dev_id;
 struct iph5526_hostdata *hostdata = (struct iph5526_hostdata *)host->hostdata;
@@ -632,6 +632,7 @@ u_long flags;
 	spin_lock_irqsave(&fi->fc_lock, flags);
 	tachyon_interrupt_handler(irq, dev_id, regs);
 	spin_unlock_irqrestore(&fi->fc_lock, flags);
+	return IRQ_HANDLED;
 }
 
 static void tachyon_interrupt_handler(int irq, void* dev_id, struct pt_regs* regs)
@@ -3720,12 +3721,13 @@ struct fc_info *fi = (struct fc_info*)dev->priv;
 
 int iph5526_detect(Scsi_Host_Template *tmpt)
 {
-struct Scsi_Host *host = NULL;
-struct iph5526_hostdata *hostdata;
-struct fc_info *fi = NULL;
-int no_of_hosts = 0, timeout, i, j, count = 0;
-u_int pci_maddr = 0;
-struct pci_dev *pdev = NULL;
+	struct Scsi_Host *host = NULL;
+	struct iph5526_hostdata *hostdata;
+	struct fc_info *fi = NULL;
+	int no_of_hosts = 0, i, j, count = 0;
+	u_int pci_maddr = 0;
+	struct pci_dev *pdev = NULL;
+	unsigned long timeout;
 
 	tmpt->proc_name = "iph5526";
 	if (pci_present() == 0) {

drivers/net/fec.c

@@ -188,7 +188,7 @@ struct fec_enet_private {
 static int fec_enet_open(struct net_device *dev);
 static int fec_enet_start_xmit(struct sk_buff *skb, struct net_device *dev);
 static void fec_enet_mii(struct net_device *dev);
-static void fec_enet_interrupt(int irq, void * dev_id, struct pt_regs * regs);
+static irqreturn_t fec_enet_interrupt(int irq, void * dev_id, struct pt_regs * regs);
 static void fec_enet_tx(struct net_device *dev);
 static void fec_enet_rx(struct net_device *dev);
 static int fec_enet_close(struct net_device *dev);
@@ -393,12 +393,13 @@ fec_timeout(struct net_device *dev)
 /* The interrupt handler.
  * This is called from the MPC core interrupt.
  */
-static	void
+static irqreturn_t
 fec_enet_interrupt(int irq, void * dev_id, struct pt_regs * regs)
 {
 	struct	net_device *dev = dev_id;
 	volatile fec_t	*fecp;
 	uint	int_events;
+	int handled = 0;
 
 	fecp = (volatile fec_t*)dev->base_addr;
 
@@ -413,20 +414,27 @@ fec_enet_interrupt(int irq, void * dev_id, struct pt_regs * regs)
 
 		/* Handle receive event in its own function.
 		 */
-		if (int_events & FEC_ENET_RXF)
+		if (int_events & FEC_ENET_RXF) {
+			handled = 1;
 			fec_enet_rx(dev);
+		}
 
 		/* Transmit OK, or non-fatal error. Update the buffer
 		   descriptors. FEC handles all errors, we just discover
 		   them as part of the transmit process.
 		*/
-		if (int_events & FEC_ENET_TXF)
+		if (int_events & FEC_ENET_TXF) {
+			handled = 1;
 			fec_enet_tx(dev);
+		}
 
-		if (int_events & FEC_ENET_MII)
+		if (int_events & FEC_ENET_MII) {
+			handled = 1;
 			fec_enet_mii(dev);
+		}
 	
 	}
+	return IRQ_RETVAL(handled);
 }
 
 

drivers/net/fmv18x.c

@@ -114,7 +114,7 @@ extern int fmv18x_probe(struct net_device *dev);
 static int fmv18x_probe1(struct net_device *dev, short ioaddr);
 static int net_open(struct net_device *dev);
 static int net_send_packet(struct sk_buff *skb, struct net_device *dev);
-static void net_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+static irqreturn_t net_interrupt(int irq, void *dev_id, struct pt_regs *regs);
 static void net_rx(struct net_device *dev);
 static void net_timeout(struct net_device *dev);
 static int net_close(struct net_device *dev);
@@ -423,7 +423,7 @@ static int net_send_packet(struct sk_buff *skb, struct net_device *dev)
 
 /* The typical workload of the driver:
    Handle the network interface interrupts. */
-static void
+static irqreturn_t
 net_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct net_device *dev = dev_id;
@@ -476,7 +476,7 @@ net_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 			spin_unlock(&lp->lock);
 		}
 	}
-	return;
+	return IRQ_RETVAL(status);
 }
 
 /* We have a good packet(s), get it/them out of the buffers. */

drivers/net/hamradio/scc.c

@@ -199,7 +199,7 @@ static void z8530_init(void);
 
 static void init_channel(struct scc_channel *scc);
 static void scc_key_trx (struct scc_channel *scc, char tx);
-static void scc_isr(int irq, void *dev_id, struct pt_regs *regs);
+static irqreturn_t scc_isr(int irq, void *dev_id, struct pt_regs *regs);
 static void scc_init_timer(struct scc_channel *scc);
 
 static int scc_net_setup(struct scc_channel *scc, unsigned char *name, int addev);
@@ -625,7 +625,7 @@ static void scc_isr_dispatch(struct scc_channel *scc, int vector)
 
 #define SCC_IRQTIMEOUT 30000
 
-static void scc_isr(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t scc_isr(int irq, void *dev_id, struct pt_regs *regs)
 {
 	unsigned char vector;	
 	struct scc_channel *scc;
@@ -653,7 +653,7 @@ static void scc_isr(int irq, void *dev_id, struct pt_regs *regs)
 		if (k == SCC_IRQTIMEOUT)
 			printk(KERN_WARNING "z8530drv: endless loop in scc_isr()?\n");
 
-		return;
+		return IRQ_HANDLED;
 	}
 
 	/* Find the SCC generating the interrupt by polling all attached SCCs
@@ -701,6 +701,7 @@ static void scc_isr(int irq, void *dev_id, struct pt_regs *regs)
 		} else
 			ctrl++;
 	}
+	return IRQ_HANDLED;
 }
 
 

drivers/net/myri_sbus.c

@@ -541,6 +541,7 @@ static irqreturn_t myri_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 	struct myri_channel *chan	= &mp->shmem->channel;
 	unsigned long flags;
 	u32 status;
+	int handled = 0;
 
 	spin_lock_irqsave(&mp->irq_lock, flags);
 
@@ -549,6 +550,7 @@ static irqreturn_t myri_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 	if (status & ISTAT_HOST) {
 		u32 softstate;
 
+		handled = 1;
 		DIRQ(("IRQ_DISAB "));
 		myri_disable_irq(lregs, mp->cregs);
 		softstate = sbus_readl(&chan->state);
@@ -568,7 +570,7 @@ static irqreturn_t myri_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 
 	spin_unlock_irqrestore(&mp->irq_lock, flags);
 
-	return IRQ_HANDLED;
+	return IRQ_RETVAL(handled);
 }
 
 static int myri_open(struct net_device *dev)

drivers/net/ppp_synctty.c

@@ -202,7 +202,6 @@ ppp_sync_open(struct tty_struct *tty)
 	struct syncppp *ap;
 	int err;
 
-	MOD_INC_USE_COUNT;
 	ap = kmalloc(sizeof(*ap), GFP_KERNEL);
 	err = -ENOMEM;
 	if (ap == 0)
@@ -236,7 +235,6 @@ ppp_sync_open(struct tty_struct *tty)
  out_free:
 	kfree(ap);
  out:
-	MOD_DEC_USE_COUNT;
 	return err;
 }
 
@@ -276,7 +274,6 @@ ppp_sync_close(struct tty_struct *tty)
 	if (ap->tpkt != 0)
 		kfree_skb(ap->tpkt);
 	kfree(ap);
-	MOD_DEC_USE_COUNT;
 }
 
 /*
@@ -404,6 +401,7 @@ ppp_sync_wakeup(struct tty_struct *tty)
 
 
 static struct tty_ldisc ppp_sync_ldisc = {
+	.owner	= THIS_MODULE,
 	.magic	= TTY_LDISC_MAGIC,
 	.name	= "pppsync",
 	.open	= ppp_sync_open,

drivers/net/seeq8005.c

@@ -84,7 +84,7 @@ static int seeq8005_probe1(struct net_device *dev, int ioaddr);
 static int seeq8005_open(struct net_device *dev);
 static void seeq8005_timeout(struct net_device *dev);
 static int seeq8005_send_packet(struct sk_buff *skb, struct net_device *dev);
-static void seeq8005_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+static irqreturn_t seeq8005_interrupt(int irq, void *dev_id, struct pt_regs *regs);
 static void seeq8005_rx(struct net_device *dev);
 static int seeq8005_close(struct net_device *dev);
 static struct net_device_stats *seeq8005_get_stats(struct net_device *dev);
@@ -400,11 +400,12 @@ static int seeq8005_send_packet(struct sk_buff *skb, struct net_device *dev)
 
 /* The typical workload of the driver:
    Handle the network interface interrupts. */
-static void seeq8005_interrupt(int irq, void *dev_id, struct pt_regs * regs)
+static irqreturn_t seeq8005_interrupt(int irq, void *dev_id, struct pt_regs * regs)
 {
 	struct net_device *dev = dev_id;
 	struct net_local *lp;
 	int ioaddr, status, boguscount = 0;
+	int handled = 0;
 
 	ioaddr = dev->base_addr;
 	lp = (struct net_local *)dev->priv;
@@ -416,17 +417,20 @@ static void seeq8005_interrupt(int irq, void *dev_id, struct pt_regs * regs)
 		}
 		
 		if (status & SEEQSTAT_WINDOW_INT) {
+			handled = 1;
 			outw( SEEQCMD_WINDOW_INT_ACK | (status & SEEQCMD_INT_MASK), SEEQ_CMD);
 			if (net_debug) {
 				printk("%s: window int!\n",dev->name);
 			}
 		}
 		if (status & SEEQSTAT_TX_INT) {
+			handled = 1;
 			outw( SEEQCMD_TX_INT_ACK | (status & SEEQCMD_INT_MASK), SEEQ_CMD);
 			lp->stats.tx_packets++;
 			netif_wake_queue(dev);	/* Inform upper layers. */
 		}
 		if (status & SEEQSTAT_RX_INT) {
+			handled = 1;
 			/* Got a packet(s). */
 			seeq8005_rx(dev);
 		}
@@ -436,6 +440,7 @@ static void seeq8005_interrupt(int irq, void *dev_id, struct pt_regs * regs)
 	if(net_debug>2) {
 		printk("%s: eoi\n",dev->name);
 	}
+	return IRQ_RETVAL(handled);
 }
 
 /* We have a good packet(s), get it/them out of the buffers. */

drivers/net/sunqe.c

@@ -124,6 +124,7 @@ static void qe_init_rings(struct sunqe *qep)
 		qb->qe_rxd[i].rx_flags =
 			(RXD_OWN | ((RXD_PKT_SZ) & RXD_LENGTH));
 	}
+	return IRQ_HANDLED;
 }
 
 static int qe_init(struct sunqe *qep, int from_irq)

drivers/net/tokenring/lanstreamer.c

@@ -201,7 +201,7 @@ static int streamer_open(struct net_device *dev);
 static int streamer_xmit(struct sk_buff *skb, struct net_device *dev);
 static int streamer_close(struct net_device *dev);
 static void streamer_set_rx_mode(struct net_device *dev);
-static void streamer_interrupt(int irq, void *dev_id,
+static irqreturn_t streamer_interrupt(int irq, void *dev_id,
 			       struct pt_regs *regs);
 static struct net_device_stats *streamer_get_stats(struct net_device *dev);
 static int streamer_set_mac_address(struct net_device *dev, void *addr);
@@ -1021,7 +1021,7 @@ static void streamer_rx(struct net_device *dev)
 	}			/* end for all completed rx descriptors */
 }
 
-static void streamer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t streamer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct net_device *dev = (struct net_device *) dev_id;
 	struct streamer_private *streamer_priv =
@@ -1142,6 +1142,7 @@ static void streamer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 	} /* while() */		
 
 	spin_unlock(&streamer_priv->streamer_lock) ; 
+	return IRQ_HANDLED;
 }
 
 static int streamer_xmit(struct sk_buff *skb, struct net_device *dev)

drivers/net/tulip/de4x5.c

@@ -2027,7 +2027,7 @@ set_multicast_list(struct net_device *dev)
 	}
     }
     
-    return;
+    return IRQ_HANDLED;
 }
 
 /*

drivers/net/wan/lmc/lmc_main.c

@@ -117,7 +117,7 @@ static int lmc_rx (struct net_device *dev);
 static int lmc_open(struct net_device *dev);
 static int lmc_close(struct net_device *dev);
 static struct net_device_stats *lmc_get_stats(struct net_device *dev);
-static void lmc_interrupt(int irq, void *dev_instance, struct pt_regs *regs);
+static irqreturn_t lmc_interrupt(int irq, void *dev_instance, struct pt_regs *regs);
 static int lmc_set_config(struct net_device *dev, struct ifmap *map);
 static void lmc_initcsrs(lmc_softc_t * const sc, lmc_csrptr_t csr_base, size_t csr_size);
 static void lmc_softreset(lmc_softc_t * const);
@@ -1388,7 +1388,7 @@ static int lmc_ifdown (struct net_device *dev) /*fold00*/
 /* Interrupt handling routine.  This will take an incoming packet, or clean
  * up after a trasmit.
  */
-static void lmc_interrupt (int irq, void *dev_instance, struct pt_regs *regs) /*fold00*/
+static irqreturn_t lmc_interrupt (int irq, void *dev_instance, struct pt_regs *regs) /*fold00*/
 {
     struct net_device *dev = (struct net_device *) dev_instance;
     lmc_softc_t *sc;
@@ -1398,6 +1398,7 @@ static void lmc_interrupt (int irq, void *dev_instance, struct pt_regs *regs) /*
     unsigned int badtx;
     u32 firstcsr;
     int max_work = LMC_RXDESCS;
+    int handled = 0;
 
     lmc_trace(dev, "lmc_interrupt in");
 
@@ -1421,6 +1422,8 @@ static void lmc_interrupt (int irq, void *dev_instance, struct pt_regs *regs) /*
 
     /* always go through this loop at least once */
     while (csr & sc->lmc_intrmask) {
+	handled = 1;
+
         /*
          * Clear interrupt bits, we handle all case below
          */
@@ -1580,6 +1583,7 @@ static void lmc_interrupt (int irq, void *dev_instance, struct pt_regs *regs) /*
     spin_unlock(&sc->lmc_lock);
 
     lmc_trace(dev, "lmc_interrupt out");
+    return IRQ_RETVAL(handled);
 }
 
 static int lmc_start_xmit (struct sk_buff *skb, struct net_device *dev) /*fold00*/

drivers/net/wireless/airport.c

@@ -275,15 +275,11 @@ init_airport(void)
 
 	printk(KERN_DEBUG "%s\n", version);
 
-	MOD_INC_USE_COUNT;
-
 	/* Lookup card in device tree */
 	airport_node = find_devices("radio");
 	if (airport_node && !strcmp(airport_node->parent->name, "mac-io"))
 		airport_dev = airport_attach(airport_node);
 
-	MOD_DEC_USE_COUNT;
-
 	return airport_dev ? 0 : -ENODEV;
 }
 

include/linux/arcdevice.h

@@ -329,7 +329,7 @@ void arcnet_dump_packet(struct net_device *dev, int bufnum, char *desc);
 #endif
 
 void arcnet_unregister_proto(struct ArcProto *proto);
-void arcnet_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+irqreturn_t arcnet_interrupt(int irq, void *dev_id, struct pt_regs *regs);
 void arcdev_setup(struct net_device *dev);
 void arcnet_rx(struct net_device *dev, int bufnum);