From: Jack Hammer <jack_hammer@adaptec.com>
Date: Tue, 24 Jan 2006 19:43:41 +0000 (-0500)
Subject: [SCSI] ips soft lockup during reset/initialization
X-Git-Url: http://git.mmlx.us/?a=commitdiff_plain;h=15084a4a63bc300c18b28a8a9afac870c552abce;p=linux-edison.git

[SCSI] ips soft lockup during reset/initialization

Resetting the adapter causes the ServeRAID driver to exceed
the max time allowed by the softlock watchdog. Resetting the
hardware can easily require 30 or more seconds. To avoid the

    "BUG: soft lockup detected on CPU#0!"

result, this patch replaces the mdelay() calls in the
initialization/reset routines with msleep().

Signed-off-by: Jack Hammer <jack_hammer@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---

diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c
index e5e1ca44e1e..32d592befca 100644
--- a/drivers/scsi/ips.c
+++ b/drivers/scsi/ips.c
@@ -5012,7 +5012,7 @@ ips_init_copperhead(ips_ha_t * ha)
 				break;
 
 			/* Delay for 1 Second */
-			MDELAY(IPS_ONE_SEC);
+			msleep(IPS_ONE_SEC);
 		}
 
 		if (j >= 45)
@@ -5038,7 +5038,7 @@ ips_init_copperhead(ips_ha_t * ha)
 				break;
 
 			/* Delay for 1 Second */
-			MDELAY(IPS_ONE_SEC);
+			msleep(IPS_ONE_SEC);
 		}
 
 		if (j >= 240)
@@ -5056,7 +5056,7 @@ ips_init_copperhead(ips_ha_t * ha)
 			break;
 
 		/* Delay for 1 Second */
-		MDELAY(IPS_ONE_SEC);
+		msleep(IPS_ONE_SEC);
 	}
 
 	if (i >= 240)
@@ -5106,7 +5106,7 @@ ips_init_copperhead_memio(ips_ha_t * ha)
 				break;
 
 			/* Delay for 1 Second */
-			MDELAY(IPS_ONE_SEC);
+			msleep(IPS_ONE_SEC);
 		}
 
 		if (j >= 45)
@@ -5132,7 +5132,7 @@ ips_init_copperhead_memio(ips_ha_t * ha)
 				break;
 
 			/* Delay for 1 Second */
-			MDELAY(IPS_ONE_SEC);
+			msleep(IPS_ONE_SEC);
 		}
 
 		if (j >= 240)
@@ -5150,7 +5150,7 @@ ips_init_copperhead_memio(ips_ha_t * ha)
 			break;
 
 		/* Delay for 1 Second */
-		MDELAY(IPS_ONE_SEC);
+		msleep(IPS_ONE_SEC);
 	}
 
 	if (i >= 240)
@@ -5202,7 +5202,7 @@ ips_init_morpheus(ips_ha_t * ha)
 			break;
 
 		/* Delay for 1 Second */
-		MDELAY(IPS_ONE_SEC);
+		msleep(IPS_ONE_SEC);
 	}
 
 	if (i >= 45) {
@@ -5228,7 +5228,7 @@ ips_init_morpheus(ips_ha_t * ha)
 			if (Post != 0x4F00)
 				break;
 			/* Delay for 1 Second */
-			MDELAY(IPS_ONE_SEC);
+			msleep(IPS_ONE_SEC);
 		}
 
 		if (i >= 120) {
@@ -5258,7 +5258,7 @@ ips_init_morpheus(ips_ha_t * ha)
 			break;
 
 		/* Delay for 1 Second */
-		MDELAY(IPS_ONE_SEC);
+		msleep(IPS_ONE_SEC);
 	}
 
 	if (i >= 240) {
@@ -5318,12 +5318,12 @@ ips_reset_copperhead(ips_ha_t * ha)
 		outb(IPS_BIT_RST, ha->io_addr + IPS_REG_SCPR);
 
 		/* Delay for 1 Second */
-		MDELAY(IPS_ONE_SEC);
+		msleep(IPS_ONE_SEC);
 
 		outb(0, ha->io_addr + IPS_REG_SCPR);
 
 		/* Delay for 1 Second */
-		MDELAY(IPS_ONE_SEC);
+		msleep(IPS_ONE_SEC);
 
 		if ((*ha->func.init) (ha))
 			break;
@@ -5363,12 +5363,12 @@ ips_reset_copperhead_memio(ips_ha_t * ha)
 		writeb(IPS_BIT_RST, ha->mem_ptr + IPS_REG_SCPR);
 
 		/* Delay for 1 Second */
-		MDELAY(IPS_ONE_SEC);
+		msleep(IPS_ONE_SEC);
 
 		writeb(0, ha->mem_ptr + IPS_REG_SCPR);
 
 		/* Delay for 1 Second */
-		MDELAY(IPS_ONE_SEC);
+		msleep(IPS_ONE_SEC);
 
 		if ((*ha->func.init) (ha))
 			break;
@@ -5409,7 +5409,7 @@ ips_reset_morpheus(ips_ha_t * ha)
 		writel(0x80000000, ha->mem_ptr + IPS_REG_I960_IDR);
 
 		/* Delay for 5 Seconds */
-		MDELAY(5 * IPS_ONE_SEC);
+		msleep(5 * IPS_ONE_SEC);
 
 		/* Do a PCI config read to wait for adapter */
 		pci_read_config_byte(ha->pcidev, 4, &junk);