diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index fa2513c..3667f89 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -60,6 +60,7 @@
 #include <linux/errno.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
+#include <linux/vmalloc.h>
 #include <linux/ioport.h>
 #include <linux/delay.h>
 #include <linux/pci.h>
@@ -2717,13 +2718,18 @@
 			unsigned long pci_address, u32 length)
 {
 	int bytes_copied = 0;
-	int cur_len, rc, rem_len, rem_page_len;
+	int cur_len, rc, rem_len, rem_page_len, max_dump_size;
 	__be32 *page;
 	unsigned long lock_flags = 0;
 	struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
 
+	if (ioa_cfg->sis64)
+		max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
+	else
+		max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
+
 	while (bytes_copied < length &&
-	       (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) {
+	       (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
 		if (ioa_dump->page_offset >= PAGE_SIZE ||
 		    ioa_dump->page_offset == 0) {
 			page = (__be32 *)__get_free_page(GFP_ATOMIC);
@@ -2885,8 +2891,8 @@
 	unsigned long lock_flags = 0;
 	struct ipr_driver_dump *driver_dump = &dump->driver_dump;
 	struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
-	u32 num_entries, start_off, end_off;
-	u32 bytes_to_copy, bytes_copied, rc;
+	u32 num_entries, max_num_entries, start_off, end_off;
+	u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
 	struct ipr_sdt *sdt;
 	int valid = 1;
 	int i;
@@ -2947,8 +2953,18 @@
 	 on entries in this table */
 	sdt = &ioa_dump->sdt;
 
+	if (ioa_cfg->sis64) {
+		max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
+		max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
+	} else {
+		max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
+		max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
+	}
+
+	bytes_to_copy = offsetof(struct ipr_sdt, entry) +
+			(max_num_entries * sizeof(struct ipr_sdt_entry));
 	rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
-					sizeof(struct ipr_sdt) / sizeof(__be32));
+					bytes_to_copy / sizeof(__be32));
 
 	/* Smart Dump table is ready to use and the first entry is valid */
 	if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
@@ -2964,13 +2980,20 @@
 
 	num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
 
-	if (num_entries > IPR_NUM_SDT_ENTRIES)
-		num_entries = IPR_NUM_SDT_ENTRIES;
+	if (num_entries > max_num_entries)
+		num_entries = max_num_entries;
+
+	/* Update dump length to the actual data to be copied */
+	dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
+	if (ioa_cfg->sis64)
+		dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
+	else
+		dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
 
 	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
 
 	for (i = 0; i < num_entries; i++) {
-		if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) {
+		if (ioa_dump->hdr.len > max_dump_size) {
 			driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
 			break;
 		}
@@ -2989,7 +3012,7 @@
 					valid = 0;
 			}
 			if (valid) {
-				if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) {
+				if (bytes_to_copy > max_dump_size) {
 					sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
 					continue;
 				}
@@ -3044,6 +3067,7 @@
 	for (i = 0; i < dump->ioa_dump.next_page_index; i++)
 		free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
 
+	vfree(dump->ioa_dump.ioa_data);
 	kfree(dump);
 	LEAVE;
 }
@@ -3835,7 +3859,7 @@
 	struct ipr_dump *dump;
 	unsigned long lock_flags = 0;
 	char *src;
-	int len;
+	int len, sdt_end;
 	size_t rc = count;
 
 	if (!capable(CAP_SYS_ADMIN))
@@ -3875,9 +3899,17 @@
 
 	off -= sizeof(dump->driver_dump);
 
-	if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) {
-		if (off + count > offsetof(struct ipr_ioa_dump, ioa_data))
-			len = offsetof(struct ipr_ioa_dump, ioa_data) - off;
+	if (ioa_cfg->sis64)
+		sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
+			  (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
+			   sizeof(struct ipr_sdt_entry));
+	else
+		sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
+			  (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
+
+	if (count && off < sdt_end) {
+		if (off + count > sdt_end)
+			len = sdt_end - off;
 		else
 			len = count;
 		src = (u8 *)&dump->ioa_dump + off;
@@ -3887,7 +3919,7 @@
 		count -= len;
 	}
 
-	off -= offsetof(struct ipr_ioa_dump, ioa_data);
+	off -= sdt_end;
 
 	while (count) {
 		if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
@@ -3916,6 +3948,7 @@
 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
 {
 	struct ipr_dump *dump;
+	__be32 **ioa_data;
 	unsigned long lock_flags = 0;
 
 	dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
@@ -3925,6 +3958,19 @@
 		return -ENOMEM;
 	}
 
+	if (ioa_cfg->sis64)
+		ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
+	else
+		ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
+
+	if (!ioa_data) {
+		ipr_err("Dump memory allocation failed\n");
+		kfree(dump);
+		return -ENOMEM;
+	}
+
+	dump->ioa_dump.ioa_data = ioa_data;
+
 	kref_init(&dump->kref);
 	dump->ioa_cfg = ioa_cfg;
 
@@ -3932,6 +3978,7 @@
 
 	if (INACTIVE != ioa_cfg->sdt_state) {
 		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+		vfree(dump->ioa_dump.ioa_data);
 		kfree(dump);
 		return 0;
 	}
@@ -7566,7 +7613,10 @@
 		ipr_cmd->job_step = ipr_reset_enable_ioa;
 
 		if (GET_DUMP == ioa_cfg->sdt_state) {
-			ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT);
+			if (ioa_cfg->sis64)
+				ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
+			else
+				ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
 			ipr_cmd->job_step = ipr_reset_wait_for_dump;
 			schedule_work(&ioa_cfg->work_q);
 			return IPR_RC_JOB_RETURN;
diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h
index 11b2dac..4e9701e 100644
--- a/drivers/scsi/ipr.h
+++ b/drivers/scsi/ipr.h
@@ -217,7 +217,8 @@
 #define IPR_CHECK_FOR_RESET_TIMEOUT		(HZ / 10)
 #define IPR_WAIT_FOR_BIST_TIMEOUT		(2 * HZ)
 #define IPR_PCI_RESET_TIMEOUT			(HZ / 2)
-#define IPR_DUMP_TIMEOUT			(15 * HZ)
+#define IPR_SIS32_DUMP_TIMEOUT			(15 * HZ)
+#define IPR_SIS64_DUMP_TIMEOUT			(40 * HZ)
 #define IPR_DUMP_DELAY_SECONDS			4
 #define IPR_DUMP_DELAY_TIMEOUT			(IPR_DUMP_DELAY_SECONDS * HZ)
 
@@ -285,9 +286,12 @@
 /*
  * Dump literals
  */
-#define IPR_MAX_IOA_DUMP_SIZE				(4 * 1024 * 1024)
-#define IPR_NUM_SDT_ENTRIES				511
-#define IPR_MAX_NUM_DUMP_PAGES	((IPR_MAX_IOA_DUMP_SIZE / PAGE_SIZE) + 1)
+#define IPR_FMT2_MAX_IOA_DUMP_SIZE			(4 * 1024 * 1024)
+#define IPR_FMT3_MAX_IOA_DUMP_SIZE			(32 * 1024 * 1024)
+#define IPR_FMT2_NUM_SDT_ENTRIES			511
+#define IPR_FMT3_NUM_SDT_ENTRIES			0xFFF
+#define IPR_FMT2_MAX_NUM_DUMP_PAGES	((IPR_FMT2_MAX_IOA_DUMP_SIZE / PAGE_SIZE) + 1)
+#define IPR_FMT3_MAX_NUM_DUMP_PAGES	((IPR_FMT3_MAX_IOA_DUMP_SIZE / PAGE_SIZE) + 1)
 
 /*
  * Misc literals
@@ -1164,7 +1168,7 @@
 
 struct ipr_sdt {
 	struct ipr_sdt_header hdr;
-	struct ipr_sdt_entry entry[IPR_NUM_SDT_ENTRIES];
+	struct ipr_sdt_entry entry[IPR_FMT3_NUM_SDT_ENTRIES];
 }__attribute__((packed, aligned (4)));
 
 struct ipr_uc_sdt {
@@ -1608,7 +1612,7 @@
 struct ipr_ioa_dump {
 	struct ipr_dump_entry_header hdr;
 	struct ipr_sdt sdt;
-	__be32 *ioa_data[IPR_MAX_NUM_DUMP_PAGES];
+	__be32 **ioa_data;
 	u32 reserved;
 	u32 next_page_index;
 	u32 page_offset;