mpt3sas: Added mpt2sas driver definitions

1. Added mpt2sas driver related macros in mpt3sas header files

2. Made scsi host's, raid class', pci's, ioctl's callback functions
global so that both drivers can use them.
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/mpt3sas/mpt3sas_base.c

@@ -2855,15 +2855,15 @@ _base_allocate_memory_pools(struct MPT3SAS_ADAPTER *ioc,  int sleep_flag)
 	else
 		sg_tablesize = MPT3SAS_SG_DEPTH;
 
-	if (sg_tablesize < MPT3SAS_MIN_PHYS_SEGMENTS)
-		sg_tablesize = MPT3SAS_MIN_PHYS_SEGMENTS;
-	else if (sg_tablesize > MPT3SAS_MAX_PHYS_SEGMENTS) {
+	if (sg_tablesize < MPT_MIN_PHYS_SEGMENTS)
+		sg_tablesize = MPT_MIN_PHYS_SEGMENTS;
+	else if (sg_tablesize > MPT_MAX_PHYS_SEGMENTS) {
 		sg_tablesize = min_t(unsigned short, sg_tablesize,
 				      SCSI_MAX_SG_CHAIN_SEGMENTS);
 		pr_warn(MPT3SAS_FMT
 		 "sg_tablesize(%u) is bigger than kernel"
 		 " defined SCSI_MAX_SG_SEGMENTS(%u)\n", ioc->name,
-		 sg_tablesize, MPT3SAS_MAX_PHYS_SEGMENTS);
+		 sg_tablesize, MPT_MAX_PHYS_SEGMENTS);
 	}
 	ioc->shost->sg_tablesize = sg_tablesize;
 

drivers/scsi/mpt3sas/mpt3sas_base.h

@@ -63,15 +63,20 @@
 #include <scsi/scsi_transport_sas.h>
 #include <scsi/scsi_dbg.h>
 #include <scsi/scsi_eh.h>
+#include <linux/pci.h>
+#include <linux/poll.h>
 
 #include "mpt3sas_debug.h"
 #include "mpt3sas_trigger_diag.h"
 
 /* driver versioning info */
 #define MPT3SAS_DRIVER_NAME		"mpt3sas"
+#define MPT2SAS_DRIVER_NAME		"mpt2sas"
 #define MPT3SAS_AUTHOR "Avago Technologies <MPT-FusionLinux.pdl@avagotech.com>"
 #define MPT3SAS_DESCRIPTION	"LSI MPT Fusion SAS 3.0 Device Driver"
+#define MPT2SAS_DESCRIPTION	"LSI MPT Fusion SAS 2.0 Device Driver"
 #define MPT3SAS_DRIVER_VERSION		"09.100.00.00"
+#define MPT2SAS_DRIVER_VERSION		"20.101.00.00"
 #define MPT3SAS_MAJOR_VERSION		9
 #define MPT3SAS_MINOR_VERSION		100
 #define MPT3SAS_BUILD_VERSION		0
@@ -80,14 +85,20 @@
 /*
  * Set MPT3SAS_SG_DEPTH value based on user input.
  */
-#define MPT3SAS_MAX_PHYS_SEGMENTS	SCSI_MAX_SG_SEGMENTS
-#define MPT3SAS_MIN_PHYS_SEGMENTS	16
+#define MPT_MAX_PHYS_SEGMENTS	SCSI_MAX_SG_SEGMENTS
+#define MPT_MIN_PHYS_SEGMENTS	16
+
 #ifdef CONFIG_SCSI_MPT3SAS_MAX_SGE
 #define MPT3SAS_SG_DEPTH		CONFIG_SCSI_MPT3SAS_MAX_SGE
 #else
-#define MPT3SAS_SG_DEPTH		MPT3SAS_MAX_PHYS_SEGMENTS
+#define MPT3SAS_SG_DEPTH		MPT_MAX_PHYS_SEGMENTS
 #endif
 
+#ifdef CONFIG_SCSI_MPT2SAS_MAX_SGE
+#define MPT2SAS_SG_DEPTH		CONFIG_SCSI_MPT2SAS_MAX_SGE
+#else
+#define MPT2SAS_SG_DEPTH		MPT_MAX_PHYS_SEGMENTS
+#endif
 
 /*
  * Generic Defines
@@ -1095,6 +1106,39 @@ struct _sas_device *mpt3sas_scsih_sas_device_find_by_sas_address(
 
 void mpt3sas_port_enable_complete(struct MPT3SAS_ADAPTER *ioc);
 
+void scsih_exit(void);
+int scsih_init(void);
+int scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id);
+void scsih_remove(struct pci_dev *pdev);
+void scsih_shutdown(struct pci_dev *pdev);
+pci_ers_result_t scsih_pci_error_detected(struct pci_dev *pdev,
+	pci_channel_state_t state);
+pci_ers_result_t scsih_pci_mmio_enabled(struct pci_dev *pdev);
+pci_ers_result_t scsih_pci_slot_reset(struct pci_dev *pdev);
+void scsih_pci_resume(struct pci_dev *pdev);
+int scsih_suspend(struct pci_dev *pdev, pm_message_t state);
+int scsih_resume(struct pci_dev *pdev);
+
+int scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd);
+int scsih_target_alloc(struct scsi_target *starget);
+int scsih_slave_alloc(struct scsi_device *sdev);
+int scsih_slave_configure(struct scsi_device *sdev);
+void scsih_target_destroy(struct scsi_target *starget);
+void scsih_slave_destroy(struct scsi_device *sdev);
+int scsih_scan_finished(struct Scsi_Host *shost, unsigned long time);
+void scsih_scan_start(struct Scsi_Host *shost);
+int scsih_change_queue_depth(struct scsi_device *sdev, int qdepth);
+int scsih_abort(struct scsi_cmnd *scmd);
+int scsih_dev_reset(struct scsi_cmnd *scmd);
+int scsih_target_reset(struct scsi_cmnd *scmd);
+int scsih_host_reset(struct scsi_cmnd *scmd);
+int scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
+	sector_t capacity, int params[]);
+
+int scsih_is_raid(struct device *dev);
+void scsih_get_resync(struct device *dev);
+void scsih_get_state(struct device *dev);
+
 /* config shared API */
 u8 mpt3sas_config_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
 	u32 reply);
@@ -1177,8 +1221,12 @@ int mpt3sas_config_get_volume_wwid(struct MPT3SAS_ADAPTER *ioc,
 /* ctl shared API */
 extern struct device_attribute *mpt3sas_host_attrs[];
 extern struct device_attribute *mpt3sas_dev_attrs[];
-void mpt3sas_ctl_init(void);
-void mpt3sas_ctl_exit(void);
+long ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
+unsigned int ctl_poll(struct file *filep, poll_table *wait);
+int ctl_fasync(int fd, struct file *filep, int mode);
+long ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg);
+void ctl_init(void);
+void ctl_exit(void);
 u8 mpt3sas_ctl_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
 	u32 reply);
 void mpt3sas_ctl_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase);

drivers/scsi/mpt3sas/mpt3sas_ctl.c

@@ -490,27 +490,27 @@ mpt3sas_ctl_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase)
 }
 
 /**
- * _ctl_fasync -
+ * ctl_fasync -
  * @fd -
  * @filep -
  * @mode -
  *
  * Called when application request fasyn callback handler.
  */
-static int
-_ctl_fasync(int fd, struct file *filep, int mode)
+int
+ctl_fasync(int fd, struct file *filep, int mode)
 {
 	return fasync_helper(fd, filep, mode, &async_queue);
 }
 
 /**
- * _ctl_poll -
+ * ctl_poll -
  * @file -
  * @wait -
  *
  */
-static unsigned int
-_ctl_poll(struct file *filep, poll_table *wait)
+unsigned int
+ctl_poll(struct file *filep, poll_table *wait)
 {
 	struct MPT3SAS_ADAPTER *ioc;
 
@@ -2298,13 +2298,13 @@ _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg,
 }
 
 /**
- * _ctl_ioctl - main ioctl entry point (unlocked)
+ * ctl_ioctl - main ioctl entry point (unlocked)
  * @file - (struct file)
  * @cmd - ioctl opcode
  * @arg -
  */
-static long
-_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+long
+ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	long ret;
 
@@ -2314,15 +2314,15 @@ _ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 
 #ifdef CONFIG_COMPAT
 /**
- * _ctl_ioctl_compat - main ioctl entry point (compat)
+ * ctl_ioctl_compat - main ioctl entry point (compat)
  * @file -
  * @cmd -
  * @arg -
  *
  * This routine handles 32 bit applications in 64bit os.
  */
-static long
-_ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
+long
+ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
 {
 	long ret;
 
@@ -3220,11 +3220,11 @@ struct device_attribute *mpt3sas_dev_attrs[] = {
 
 static const struct file_operations ctl_fops = {
 	.owner = THIS_MODULE,
-	.unlocked_ioctl = _ctl_ioctl,
-	.poll = _ctl_poll,
-	.fasync = _ctl_fasync,
+	.unlocked_ioctl = ctl_ioctl,
+	.poll = ctl_poll,
+	.fasync = ctl_fasync,
 #ifdef CONFIG_COMPAT
-	.compat_ioctl = _ctl_ioctl_compat,
+	.compat_ioctl = ctl_ioctl_compat,
 #endif
 };
 
@@ -3235,11 +3235,11 @@ static struct miscdevice ctl_dev = {
 };
 
 /**
- * mpt3sas_ctl_init - main entry point for ctl.
+ * ctl_init - main entry point for ctl.
  *
  */
 void
-mpt3sas_ctl_init(void)
+ctl_init(void)
 {
 	async_queue = NULL;
 	if (misc_register(&ctl_dev) < 0)
@@ -3250,11 +3250,11 @@ mpt3sas_ctl_init(void)
 }
 
 /**
- * mpt3sas_ctl_exit - exit point for ctl
+ * ctl_exit - exit point for ctl
  *
  */
 void
-mpt3sas_ctl_exit(void)
+ctl_exit(void)
 {
 	struct MPT3SAS_ADAPTER *ioc;
 	int i;