3 files changed, 112 insertions, 64 deletions

diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index 1b5e375732c0..635b228c3ead 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -33,9 +33,9 @@
 /*
  * MegaRAID SAS Driver meta data
  */
-#define MEGASAS_VERSION				"00.00.05.29-rc1"
-#define MEGASAS_RELDATE				"Dec. 7, 2010"
-#define MEGASAS_EXT_VERSION			"Tue. Dec. 7 17:00:00 PDT 2010"
+#define MEGASAS_VERSION				"00.00.05.34-rc1"
+#define MEGASAS_RELDATE				"Feb. 24, 2011"
+#define MEGASAS_EXT_VERSION			"Thu. Feb. 24 17:00:00 PDT 2011"
 
 /*
  * Device IDs
@@ -723,6 +723,7 @@ struct megasas_ctrl_info {
 						MEGASAS_MAX_DEV_PER_CHANNEL)
 
 #define MEGASAS_MAX_SECTORS                    (2*1024)
+#define MEGASAS_MAX_SECTORS_IEEE		(2*128)
 #define MEGASAS_DBG_LVL				1
 
 #define MEGASAS_FW_BUSY				1
@@ -1477,4 +1478,7 @@ struct megasas_mgmt_info {
 	int max_index;
 };
 
+#define msi_control_reg(base) (base + PCI_MSI_FLAGS)
+#define PCI_MSIX_FLAGS_ENABLE (1 << 15)
+
 #endif				/*LSI_MEGARAID_SAS_H */
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 5d6d07bd1cd0..f875e818905f 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -18,12 +18,13 @@
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  *
  *  FILE: megaraid_sas_base.c
- *  Version : v00.00.05.29-rc1
+ *  Version : v00.00.05.34-rc1
  *
  *  Authors: LSI Corporation
  *           Sreenivas Bagalkote
  *           Sumant Patro
  *           Bo Yang
+ *           Adam Radford <linuxraid@lsi.com>
  *
  *  Send feedback to: <megaraidlinux@lsi.com>
  *
@@ -134,7 +135,11 @@ spinlock_t poll_aen_lock;
 void
 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
 		     u8 alt_status);
-
+static u32
+megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs);
+static int
+megasas_adp_reset_gen2(struct megasas_instance *instance,
+		       struct megasas_register_set __iomem *reg_set);
 static irqreturn_t megasas_isr(int irq, void *devp);
 static u32
 megasas_init_adapter_mfi(struct megasas_instance *instance);
@@ -554,6 +559,8 @@ static int
 megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs)
 {
 	u32 status;
+	u32 mfiStatus = 0;
+
 	/*
 	 * Check if it is our interrupt
 	 */
@@ -564,6 +571,15 @@ megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs)
 	}
 
 	/*
+	 * Check if it is our interrupt
+	 */
+	if ((megasas_read_fw_status_reg_gen2(regs) & MFI_STATE_MASK) ==
+	    MFI_STATE_FAULT) {
+		mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
+	} else
+		mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
+
+	/*
 	 * Clear the interrupt by writing back the same value
 	 */
 	writel(status, &regs->outbound_intr_status);
@@ -573,7 +589,7 @@ megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs)
 	*/
 	readl(&regs->outbound_intr_status);
 
-	return 1;
+	return mfiStatus;
 }
 
 /**
@@ -597,17 +613,6 @@ megasas_fire_cmd_skinny(struct megasas_instance *instance,
 }
 
 /**
- * megasas_adp_reset_skinny -	For controller reset
- * @regs:				MFI register set
- */
-static int
-megasas_adp_reset_skinny(struct megasas_instance *instance,
-			struct megasas_register_set __iomem *regs)
-{
-	return 0;
-}
-
-/**
  * megasas_check_reset_skinny -	For controller reset check
  * @regs:				MFI register set
  */
@@ -625,7 +630,7 @@ static struct megasas_instance_template megasas_instance_template_skinny = {
 	.disable_intr = megasas_disable_intr_skinny,
 	.clear_intr = megasas_clear_intr_skinny,
 	.read_fw_status_reg = megasas_read_fw_status_reg_skinny,
-	.adp_reset = megasas_adp_reset_skinny,
+	.adp_reset = megasas_adp_reset_gen2,
 	.check_reset = megasas_check_reset_skinny,
 	.service_isr = megasas_isr,
 	.tasklet = megasas_complete_cmd_dpc,
@@ -740,20 +745,28 @@ megasas_adp_reset_gen2(struct megasas_instance *instance,
 {
 	u32			retry = 0 ;
 	u32			HostDiag;
+	u32			*seq_offset = &reg_set->seq_offset;
+	u32			*hostdiag_offset = &reg_set->host_diag;
+
+	if (instance->instancet == &megasas_instance_template_skinny) {
+		seq_offset = &reg_set->fusion_seq_offset;
+		hostdiag_offset = &reg_set->fusion_host_diag;
+	}
+
+	writel(0, seq_offset);
+	writel(4, seq_offset);
+	writel(0xb, seq_offset);
+	writel(2, seq_offset);
+	writel(7, seq_offset);
+	writel(0xd, seq_offset);
 
-	writel(0, &reg_set->seq_offset);
-	writel(4, &reg_set->seq_offset);
-	writel(0xb, &reg_set->seq_offset);
-	writel(2, &reg_set->seq_offset);
-	writel(7, &reg_set->seq_offset);
-	writel(0xd, &reg_set->seq_offset);
 	msleep(1000);
 
-	HostDiag = (u32)readl(&reg_set->host_diag);
+	HostDiag = (u32)readl(hostdiag_offset);
 
 	while ( !( HostDiag & DIAG_WRITE_ENABLE) ) {
 		msleep(100);
-		HostDiag = (u32)readl(&reg_set->host_diag);
+		HostDiag = (u32)readl(hostdiag_offset);
 		printk(KERN_NOTICE "RESETGEN2: retry=%x, hostdiag=%x\n",
 					retry, HostDiag);
 
@@ -764,14 +777,14 @@ megasas_adp_reset_gen2(struct megasas_instance *instance,
 
 	printk(KERN_NOTICE "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag);
 
-	writel((HostDiag | DIAG_RESET_ADAPTER), &reg_set->host_diag);
+	writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset);
 
 	ssleep(10);
 
-	HostDiag = (u32)readl(&reg_set->host_diag);
+	HostDiag = (u32)readl(hostdiag_offset);
 	while ( ( HostDiag & DIAG_RESET_ADAPTER) ) {
 		msleep(100);
-		HostDiag = (u32)readl(&reg_set->host_diag);
+		HostDiag = (u32)readl(hostdiag_offset);
 		printk(KERN_NOTICE "RESET_GEN2: retry=%x, hostdiag=%x\n",
 				retry, HostDiag);
 
@@ -2503,7 +2516,9 @@ megasas_deplete_reply_queue(struct megasas_instance *instance,
 	if ((mfiStatus = instance->instancet->clear_intr(
 						instance->reg_set)
 						) == 0) {
-		return IRQ_NONE;
+		/* Hardware may not set outbound_intr_status in MSI-X mode */
+		if (!instance->msi_flag)
+			return IRQ_NONE;
 	}
 
 	instance->mfiStatus = mfiStatus;
@@ -2611,7 +2626,9 @@ megasas_transition_to_ready(struct megasas_instance* instance)
 		case MFI_STATE_FAULT:
 
 			printk(KERN_DEBUG "megasas: FW in FAULT state!!\n");
-			return -ENODEV;
+			max_wait = MEGASAS_RESET_WAIT_TIME;
+			cur_state = MFI_STATE_FAULT;
+			break;
 
 		case MFI_STATE_WAIT_HANDSHAKE:
 			/*
@@ -3424,7 +3441,6 @@ fail_reply_queue:
 	megasas_free_cmds(instance);
 
 fail_alloc_cmds:
-	iounmap(instance->reg_set);
 	return 1;
 }
 
@@ -3494,7 +3510,7 @@ static int megasas_init_fw(struct megasas_instance *instance)
 
 	/* Get operational params, sge flags, send init cmd to controller */
 	if (instance->instancet->init_adapter(instance))
-		return -ENODEV;
+		goto fail_init_adapter;
 
 	printk(KERN_ERR "megasas: INIT adapter done\n");
 
@@ -3543,7 +3559,7 @@ static int megasas_init_fw(struct megasas_instance *instance)
 	* Setup tasklet for cmd completion
 	*/
 
-	tasklet_init(&instance->isr_tasklet, megasas_complete_cmd_dpc,
+	tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
 		(unsigned long)instance);
 
 	/* Initialize the cmd completion timer */
@@ -3553,6 +3569,7 @@ static int megasas_init_fw(struct megasas_instance *instance)
 				MEGASAS_COMPLETION_TIMER_INTERVAL);
 	return 0;
 
+fail_init_adapter:
 fail_ready_state:
 	iounmap(instance->reg_set);
 
@@ -3820,6 +3837,10 @@ static int megasas_io_attach(struct megasas_instance *instance)
 			instance->max_fw_cmds - MEGASAS_INT_CMDS;
 	host->this_id = instance->init_id;
 	host->sg_tablesize = instance->max_num_sge;
+
+	if (instance->fw_support_ieee)
+		instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE;
+
 	/*
 	 * Check if the module parameter value for max_sectors can be used
 	 */
@@ -3899,9 +3920,26 @@ fail_set_dma_mask:
 static int __devinit
 megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 {
-	int rval;
+	int rval, pos;
 	struct Scsi_Host *host;
 	struct megasas_instance *instance;
+	u16 control = 0;
+
+	/* Reset MSI-X in the kdump kernel */
+	if (reset_devices) {
+		pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
+		if (pos) {
+			pci_read_config_word(pdev, msi_control_reg(pos),
+					     &control);
+			if (control & PCI_MSIX_FLAGS_ENABLE) {
+				dev_info(&pdev->dev, "resetting MSI-X\n");
+				pci_write_config_word(pdev,
+						      msi_control_reg(pos),
+						      control &
+						      ~PCI_MSIX_FLAGS_ENABLE);
+			}
+		}
+	}
 
 	/*
 	 * Announce PCI information
@@ -4039,12 +4077,6 @@ megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	else
 		INIT_WORK(&instance->work_init, process_fw_state_change_wq);
 
-	/*
-	 * Initialize MFI Firmware
-	 */
-	if (megasas_init_fw(instance))
-		goto fail_init_mfi;
-
 	/* Try to enable MSI-X */
 	if ((instance->pdev->device != PCI_DEVICE_ID_LSI_SAS1078R) &&
 	    (instance->pdev->device != PCI_DEVICE_ID_LSI_SAS1078DE) &&
@@ -4054,6 +4086,12 @@ megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 		instance->msi_flag = 1;
 
 	/*
+	 * Initialize MFI Firmware
+	 */
+	if (megasas_init_fw(instance))
+		goto fail_init_mfi;
+
+	/*
 	 * Register IRQ
 	 */
 	if (request_irq(instance->msi_flag ? instance->msixentry.vector :
@@ -4105,24 +4143,23 @@ megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	instance->instancet->disable_intr(instance->reg_set);
 	free_irq(instance->msi_flag ? instance->msixentry.vector :
 		 instance->pdev->irq, instance);
+fail_irq:
+	if (instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION)
+		megasas_release_fusion(instance);
+	else
+		megasas_release_mfi(instance);
+      fail_init_mfi:
 	if (instance->msi_flag)
 		pci_disable_msix(instance->pdev);
-
-      fail_irq:
-      fail_init_mfi:
       fail_alloc_dma_buf:
 	if (instance->evt_detail)
 		pci_free_consistent(pdev, sizeof(struct megasas_evt_detail),
 				    instance->evt_detail,
 				    instance->evt_detail_h);
 
-	if (instance->producer) {
+	if (instance->producer)
 		pci_free_consistent(pdev, sizeof(u32), instance->producer,
 				    instance->producer_h);
-		megasas_release_mfi(instance);
-	} else {
-		megasas_release_fusion(instance);
-	}
 	if (instance->consumer)
 		pci_free_consistent(pdev, sizeof(u32), instance->consumer,
 				    instance->consumer_h);
@@ -4242,9 +4279,8 @@ megasas_suspend(struct pci_dev *pdev, pm_message_t state)
 	/* cancel the delayed work if this work still in queue */
 	if (instance->ev != NULL) {
 		struct megasas_aen_event *ev = instance->ev;
-		cancel_delayed_work(
+		cancel_delayed_work_sync(
 			(struct delayed_work *)&ev->hotplug_work);
-		flush_scheduled_work();
 		instance->ev = NULL;
 	}
 
@@ -4297,6 +4333,10 @@ megasas_resume(struct pci_dev *pdev)
 	if (megasas_set_dma_mask(pdev))
 		goto fail_set_dma_mask;
 
+	/* Now re-enable MSI-X */
+	if (instance->msi_flag)
+		pci_enable_msix(instance->pdev, &instance->msixentry, 1);
+
 	/*
 	 * Initialize MFI Firmware
 	 */
@@ -4333,10 +4373,6 @@ megasas_resume(struct pci_dev *pdev)
 	tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
 		     (unsigned long)instance);
 
-	/* Now re-enable MSI-X */
-	if (instance->msi_flag)
-		pci_enable_msix(instance->pdev, &instance->msixentry, 1);
-
 	/*
 	 * Register IRQ
 	 */
@@ -4417,9 +4453,8 @@ static void __devexit megasas_detach_one(struct pci_dev *pdev)
 	/* cancel the delayed work if this work still in queue*/
 	if (instance->ev != NULL) {
 		struct megasas_aen_event *ev = instance->ev;
-		cancel_delayed_work(
+		cancel_delayed_work_sync(
 			(struct delayed_work *)&ev->hotplug_work);
-		flush_scheduled_work();
 		instance->ev = NULL;
 	}
 
@@ -4611,6 +4646,9 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
 	 * For each user buffer, create a mirror buffer and copy in
 	 */
 	for (i = 0; i < ioc->sge_count; i++) {
+		if (!ioc->sgl[i].iov_len)
+			continue;
+
 		kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev,
 						    ioc->sgl[i].iov_len,
 						    &buf_handle, GFP_KERNEL);
@@ -5177,6 +5215,7 @@ megasas_aen_polling(struct work_struct *work)
 			break;
 
 		case MR_EVT_LD_OFFLINE:
+		case MR_EVT_CFG_CLEARED:
 		case MR_EVT_LD_DELETED:
 			megasas_get_ld_list(instance);
 			for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) {
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index d6e2a663b165..145a8cffb1fa 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -81,6 +81,10 @@ u16 MR_TargetIdToLdGet(u32 ldTgtId, struct MR_FW_RAID_MAP_ALL *map);
 struct MR_LD_RAID *MR_LdRaidGet(u32 ld, struct MR_FW_RAID_MAP_ALL *map);
 
 u16 MR_GetLDTgtId(u32 ld, struct MR_FW_RAID_MAP_ALL *map);
+
+void
+megasas_check_and_restore_queue_depth(struct megasas_instance *instance);
+
 u8 MR_ValidateMapInfo(struct MR_FW_RAID_MAP_ALL *map,
 		      struct LD_LOAD_BALANCE_INFO *lbInfo);
 u16 get_updated_dev_handle(struct LD_LOAD_BALANCE_INFO *lbInfo,
@@ -983,13 +987,15 @@ megasas_init_adapter_fusion(struct megasas_instance *instance)
 
 	return 0;
 
-fail_alloc_cmds:
-fail_alloc_mfi_cmds:
 fail_map_info:
 	if (i == 1)
 		dma_free_coherent(&instance->pdev->dev, fusion->map_sz,
 				  fusion->ld_map[0], fusion->ld_map_phys[0]);
 fail_ioc_init:
+	megasas_free_cmds_fusion(instance);
+fail_alloc_cmds:
+	megasas_free_cmds(instance);
+fail_alloc_mfi_cmds:
 	return 1;
 }
 
@@ -1431,8 +1437,7 @@ megasas_build_dcdb_fusion(struct megasas_instance *instance,
 	local_map_ptr = fusion->ld_map[(instance->map_id & 1)];
 
 	/* Check if this is a system PD I/O */
-	if ((instance->pd_list[pd_index].driveState == MR_PD_STATE_SYSTEM) &&
-	    (instance->pd_list[pd_index].driveType == TYPE_DISK)) {
+	if (instance->pd_list[pd_index].driveState == MR_PD_STATE_SYSTEM) {
 		io_request->Function = 0;
 		io_request->DevHandle =
 			local_map_ptr->raidMap.devHndlInfo[device_id].curDevHdl;
@@ -1455,7 +1460,7 @@ megasas_build_dcdb_fusion(struct megasas_instance *instance,
 			 MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
 	}
 	io_request->RaidContext.VirtualDiskTgtId = device_id;
-	io_request->LUN[0] = scmd->device->lun;
+	io_request->LUN[1] = scmd->device->lun;
 	io_request->DataLength = scsi_bufflen(scmd);
 }
 
@@ -1479,7 +1484,7 @@ megasas_build_io_fusion(struct megasas_instance *instance,
 	device_id = MEGASAS_DEV_INDEX(instance, scp);
 
 	/* Zero out some fields so they don't get reused */
-	io_request->LUN[0] = 0;
+	io_request->LUN[1] = 0;
 	io_request->CDB.EEDP32.PrimaryReferenceTag = 0;
 	io_request->CDB.EEDP32.PrimaryApplicationTagMask = 0;
 	io_request->EEDPFlags = 0;
@@ -1743,7 +1748,7 @@ complete_cmd_fusion(struct megasas_instance *instance)
 	wmb();
 	writel(fusion->last_reply_idx,
 	       &instance->reg_set->reply_post_host_index);
-
+	megasas_check_and_restore_queue_depth(instance);
 	return IRQ_HANDLED;
 }