[KJ] [PATCH 14/21] net/s2io: replace schedule_timeout() with

[KJ] [PATCH 14/21] net/s2io: replace schedule_timeout() with

[Nishanth Aravamudan]

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Hi,

Please consider applying. 

Description: Use msleep() instead of schedule_timeout() to guarantee the task
delays as expected. This makes the code independent of HZ values (particularly
important when HZ changes or is dynamic).

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>


--- 2.6.11-rc1-kj-v/drivers/net/s2io.c	2005-01-15 16:55:41.000000000 -0800
+++ 2.6.11-rc1-kj/drivers/net/s2io.c	2005-01-16 23:50:59.000000000 -0800
@@ -684,8 +684,7 @@ static int init_nic(struct s2io_nic *nic
 	val64 = 0;
 	writeq(val64, &bar0->sw_reset);
 	val64 = readq(&bar0->sw_reset);
-	set_current_state(TASK_UNINTERRUPTIBLE);
-	schedule_timeout(HZ / 2);
+	msleep(500);
 
 	/*  Enable Receiving broadcasts */
 	add = (void *) &bar0->mac_cfg;
@@ -938,8 +937,7 @@ static int init_nic(struct s2io_nic *nic
 				  dev->name);
 			return -1;
 		}
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(HZ / 20);
+		msleep(50);
 		time++;
 	}
 
@@ -977,8 +975,7 @@ static int init_nic(struct s2io_nic *nic
 			return -1;
 		}
 		time++;
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(HZ / 20);
+		msleep(50);
 	}
 
 	/* 
@@ -1407,8 +1404,7 @@ static int start_nic(struct s2io_nic *ni
 	SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF);
 	val64 = readq(&bar0->mc_rldram_mrs);
 
-	set_current_state(TASK_UNINTERRUPTIBLE);
-	schedule_timeout(HZ / 10);	/* Delay by around 100 ms. */
+	msleep(100);			/* Delay by around 100 ms. */
 
 	/* Enabling ECC Protection. */
 	val64 = readq(&bar0->adapter_control);
@@ -2423,8 +2419,7 @@ int wait_for_cmd_complete(nic_t * sp)
 			ret = SUCCESS;
 			break;
 		}
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(HZ / 20);
+		msleep(50);
 		if (cnt++ > 10)
 			break;
 	}
@@ -2463,15 +2458,13 @@ void s2io_reset(nic_t * sp)
 	 * As of now I'am just giving a 250ms delay and hoping that the
 	 * PCI write to sw_reset register is done by this time.
 	 */
-	set_current_state(TASK_UNINTERRUPTIBLE);
-	schedule_timeout(HZ / 4);
+	msleep(250);
 
 	/* Restore the PCI state saved during initializarion. */
 	pci_restore_state(sp->pdev);
 	s2io_init_pci(sp);
 
-	set_current_state(TASK_UNINTERRUPTIBLE);
-	schedule_timeout(HZ / 4);
+	msleep(250);
 
 	/* SXE-002: Configure link and activity LED to turn it off */
 	subid = sp->pdev->subsystem_device;
@@ -3391,8 +3384,7 @@ static int read_eeprom(nic_t * sp, int o
 			ret = 0;
 			break;
 		}
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(HZ / 20);
+		msleep(50);
 		exit_cnt++;
 	}
 
@@ -3432,8 +3424,7 @@ static int write_eeprom(nic_t * sp, int 
 				ret = 0;
 			break;
 		}
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(HZ / 20);
+		msleep(50);
 		exit_cnt++;
 	}
 
@@ -3689,8 +3680,7 @@ static int s2io_bist_test(nic_t * sp, ui
 			ret = 0;
 			break;
 		}
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(HZ / 10);
+		msleep(100);
 		cnt++;
 	}
 
@@ -3791,8 +3781,7 @@ static int s2io_rldram_test(nic_t * sp, 
 			val64 = readq(&bar0->mc_rldram_test_ctrl);
 			if (val64 & MC_RLDRAM_TEST_DONE)
 				break;
-			set_current_state(TASK_UNINTERRUPTIBLE);
-			schedule_timeout(HZ / 5);
+			msleep(200);
 		}
 
 		if (cnt == 5)
@@ -3808,8 +3797,7 @@ static int s2io_rldram_test(nic_t * sp, 
 			val64 = readq(&bar0->mc_rldram_test_ctrl);
 			if (val64 & MC_RLDRAM_TEST_DONE)
 				break;
-			set_current_state(TASK_UNINTERRUPTIBLE);
-			schedule_timeout(HZ / 2);
+			msleep(200);
 		}
 
 		if (cnt == 5)
@@ -4169,8 +4157,7 @@ static void s2io_set_link(unsigned long 
 	 * Allow a small delay for the NICs self initiated 
 	 * cleanup to complete.
 	 */
-	set_current_state(TASK_UNINTERRUPTIBLE);
-	schedule_timeout(HZ / 10);
+	msleep(100);
 
 	val64 = readq(&bar0->adapter_status);
 	if (verify_xena_quiescence(val64, nic->device_enabled_once)) {
@@ -4224,10 +4211,8 @@ static void s2io_card_down(nic_t * sp)
 	register u64 val64 = 0;
 
 	/* If s2io_set_link task is executing, wait till it completes. */
-	while (test_and_set_bit(0, &(sp->link_state))) {
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(HZ / 20);
-	}
+	while (test_and_set_bit(0, &(sp->link_state)))
+		msleep(50);
 	atomic_set(&sp->card_state, CARD_DOWN);
 
 	/* disable Tx and Rx traffic on the NIC */
@@ -4243,8 +4228,7 @@ static void s2io_card_down(nic_t * sp)
 			break;
 		}
 
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(HZ / 20);
+		msleep(50);
 		cnt++;
 		if (cnt == 10) {
 			DBG_PRINT(ERR_DBG,

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