diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index 3f4cb52..0b38691 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -2256,6 +2256,18 @@ enum MR_PD_TYPE {
 #define MR_DEVICE_HIGH_IOPS_DEPTH	8
 #define MR_HIGH_IOPS_BATCH_COUNT	16
 
+enum MR_PERF_MODE {
+	MR_BALANCED_PERF_MODE		= 0,
+	MR_IOPS_PERF_MODE		= 1,
+	MR_LATENCY_PERF_MODE		= 2,
+};
+
+#define MEGASAS_PERF_MODE_2STR(mode) \
+		((mode) == MR_BALANCED_PERF_MODE ? "Balanced" : \
+		 (mode) == MR_IOPS_PERF_MODE ? "IOPs" : \
+		 (mode) == MR_LATENCY_PERF_MODE ? "Latency" : \
+		 "Unknown")
+
 struct megasas_instance {
 
 	unsigned int *reply_map;
@@ -2441,7 +2453,7 @@ struct megasas_instance {
 	bool support_seqnum_jbod_fp;
 	bool support_pci_lane_margining;
 	u8  low_latency_index_start;
-	bool balanced_mode;
+	int perf_mode;
 };
 
 struct MR_LD_VF_MAP {
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index fec3e57..9233b22 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -105,6 +105,18 @@ unsigned int scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT;
 module_param(scmd_timeout, int, 0444);
 MODULE_PARM_DESC(scmd_timeout, "scsi command timeout (10-90s), default 90s. See megasas_reset_timer.");
 
+int perf_mode = -1;
+module_param(perf_mode, int, 0444);
+MODULE_PARM_DESC(perf_mode, "Performance mode (only for Aero adapters), options:\n\t\t"
+		"0 - balanced: High iops and low latency queues are allocated &\n\t\t"
+		"interrupt coalescing is enabled only on high iops queues\n\t\t"
+		"1 - iops: High iops queues are not allocated &\n\t\t"
+		"interrupt coalescing is enabled on all queues\n\t\t"
+		"2 - latency: High iops queues are not allocated &\n\t\t"
+		"interrupt coalescing is disabled on all queues\n\t\t"
+		"default mode is 'balanced'"
+		);
+
 MODULE_LICENSE("GPL");
 MODULE_VERSION(MEGASAS_VERSION);
 MODULE_AUTHOR("megaraidlinux.pdl@broadcom.com");
@@ -5472,7 +5484,7 @@ megasas_setup_irqs_ioapic(struct megasas_instance *instance)
 				__func__, __LINE__);
 		return -1;
 	}
-	instance->balanced_mode = false;
+	instance->perf_mode = MR_LATENCY_PERF_MODE;
 	instance->low_latency_index_start = 0;
 	return 0;
 }
@@ -5683,7 +5695,7 @@ megasas_set_high_iops_queue_affinity_hint(struct megasas_instance *instance)
 	int i;
 	int local_numa_node;
 
-	if (instance->balanced_mode) {
+	if (instance->perf_mode == MR_BALANCED_PERF_MODE) {
 		local_numa_node = dev_to_node(&instance->pdev->dev);
 
 		for (i = 0; i < instance->low_latency_index_start; i++)
@@ -5726,11 +5738,12 @@ megasas_alloc_irq_vectors(struct megasas_instance *instance)
 
 	i = __megasas_alloc_irq_vectors(instance);
 
-	if (instance->balanced_mode && (i != instance->msix_vectors)) {
+	if ((instance->perf_mode == MR_BALANCED_PERF_MODE) &&
+		(i != instance->msix_vectors)) {
 		if (instance->msix_vectors)
 			pci_free_irq_vectors(instance->pdev);
 		/*Disable Balanced IOPs mode and try realloc vectors*/
-		instance->balanced_mode = false;
+		instance->perf_mode = MR_LATENCY_PERF_MODE;
 		instance->low_latency_index_start = 1;
 		num_msix_req = num_online_cpus() + instance->low_latency_index_start;
 
@@ -5774,6 +5787,7 @@ static int megasas_init_fw(struct megasas_instance *instance)
 	struct fusion_context *fusion;
 	bool intr_coalescing;
 	unsigned int num_msix_req;
+	u16 lnksta, speed;
 
 	fusion = instance->ctrl_context;
 
@@ -5983,11 +5997,43 @@ static int megasas_init_fw(struct megasas_instance *instance)
 		if (intr_coalescing &&
 			(num_online_cpus() >= MR_HIGH_IOPS_QUEUE_COUNT) &&
 			(instance->msix_vectors == MEGASAS_MAX_MSIX_QUEUES))
-			instance->balanced_mode = true;
+			instance->perf_mode = MR_BALANCED_PERF_MODE;
 		else
-			instance->balanced_mode = false;
+			instance->perf_mode = MR_LATENCY_PERF_MODE;
+
+
+		if (instance->adapter_type == AERO_SERIES) {
+			pcie_capability_read_word(instance->pdev, PCI_EXP_LNKSTA, &lnksta);
+			speed = lnksta & PCI_EXP_LNKSTA_CLS;
+
+			/*
+			 * For Aero, if PCIe link speed is <16 GT/s, then driver should operate
+			 * in latency perf mode and enable R1 PCI bandwidth algorithm
+			 */
+			if (speed < 0x4) {
+				instance->perf_mode = MR_LATENCY_PERF_MODE;
+				fusion->pcie_bw_limitation = true;
+			}
+
+			/*
+			 * Performance mode settings provided through module parameter-perf_mode will
+			 * take affect only for:
+			 * 1. Aero family of adapters.
+			 * 2. When user sets module parameter- perf_mode in range of 0-2.
+			 */
+			if ((perf_mode >= MR_BALANCED_PERF_MODE) &&
+				(perf_mode <= MR_LATENCY_PERF_MODE))
+				instance->perf_mode = perf_mode;
+			/*
+			 * If intr coalescing is not supported by controller FW, then IOPs
+			 * and Balanced modes are not feasible.
+			 */
+				if (!intr_coalescing)
+					instance->perf_mode = MR_LATENCY_PERF_MODE;
+
+		}
 
-		if (instance->balanced_mode)
+		if (instance->perf_mode == MR_BALANCED_PERF_MODE)
 			instance->low_latency_index_start =
 				MR_HIGH_IOPS_QUEUE_COUNT;
 		else
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 90dced4..8a3e255 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -1097,10 +1097,10 @@ megasas_ioc_init_fusion(struct megasas_instance *instance)
 
 	if ((instance->low_latency_index_start ==
 		MR_HIGH_IOPS_QUEUE_COUNT) && cur_intr_coalescing)
-		instance->balanced_mode = true;
+		instance->perf_mode = MR_BALANCED_PERF_MODE;
 
-	dev_info(&instance->pdev->dev, "Balanced mode :%s\n",
-		instance->balanced_mode ? "Yes" : "No");
+	dev_info(&instance->pdev->dev, "Performance mode :%s\n",
+		MEGASAS_PERF_MODE_2STR(instance->perf_mode));
 
 	instance->fw_sync_cache_support = (scratch_pad_1 &
 		MR_CAN_HANDLE_SYNC_CACHE_OFFSET) ? 1 : 0;
@@ -1190,9 +1190,17 @@ megasas_ioc_init_fusion(struct megasas_instance *instance)
 	 * Each bit in replyqueue_mask represents one group of MSI-x vectors
 	 * (each group has 8 vectors)
 	 */
-	if (instance->balanced_mode)
+	switch (instance->perf_mode) {
+	case MR_BALANCED_PERF_MODE:
 		init_frame->replyqueue_mask =
-		       cpu_to_le16(~(~0 << instance->low_latency_index_start / 8));
+		       cpu_to_le16(~(~0 << instance->low_latency_index_start/8));
+		break;
+	case MR_IOPS_PERF_MODE:
+		init_frame->replyqueue_mask =
+		       cpu_to_le16(~(~0 << instance->msix_vectors/8));
+		break;
+	}
+
 
 	req_desc.u.low = cpu_to_le32(lower_32_bits(cmd->frame_phys_addr));
 	req_desc.u.high = cpu_to_le32(upper_32_bits(cmd->frame_phys_addr));
@@ -2831,7 +2839,7 @@ megasas_build_ldio_fusion(struct megasas_instance *instance,
 			fp_possible = (io_info.fpOkForIo > 0) ? true : false;
 	}
 
-	if (instance->balanced_mode &&
+	if ((instance->perf_mode == MR_BALANCED_PERF_MODE) &&
 		atomic_read(&scp->device->device_busy) >
 		(io_info.data_arms * MR_DEVICE_HIGH_IOPS_DEPTH))
 		cmd->request_desc->SCSIIO.MSIxIndex =
@@ -3164,7 +3172,7 @@ megasas_build_syspd_fusion(struct megasas_instance *instance,
 
 	cmd->request_desc->SCSIIO.DevHandle = io_request->DevHandle;
 
-	if (instance->balanced_mode &&
+	if ((instance->perf_mode == MR_BALANCED_PERF_MODE) &&
 		atomic_read(&scmd->device->device_busy) > MR_DEVICE_HIGH_IOPS_DEPTH)
 		cmd->request_desc->SCSIIO.MSIxIndex =
 			mega_mod64((atomic64_add_return(1, &instance->high_iops_outstanding) /
