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Commit 92f61e3b authored by John Garry's avatar John Garry Committed by Martin K. Petersen
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scsi: hisi_sas: add skeleton v3 hw driver 



Add skeleton driver for v3 hw in hisi_sas_v3_hw.c

File hisi_sas_v3_hw.c will serve 2 purposes:
- probing and initialisation of the controller based on pci device
- hw layer for v3-based controllers

The controller design is quite similar to v2 hw in hip07.

However key differences include:
-All v2 hw bugs are fixed (hopefully), so workarounds are not required
-support for device deregistration
-some interrupt modifications
-configurable max device support

Signed-off-by: default avatarJohn Garry <john.garry@huawei.com>
Signed-off-by: default avatarXiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 0fa24c19

drivers/scsi/hisi_sas/Kconfig

+9 −1
Original line number Diff line number Diff line
@@ -6,4 +6,12 @@ config SCSI_HISI_SAS 
	select BLK_DEV_INTEGRITY

	depends on ATA

	help

		This driver supports HiSilicon's SAS HBA
 
		This driver supports HiSilicon's SAS HBA, including support based

		on platform device



config SCSI_HISI_SAS_PCI

	tristate "HiSilicon SAS on PCI bus"

	depends on SCSI_HISI_SAS

	depends on PCI

	help

		This driver supports HiSilicon's SAS HBA based on PCI device

drivers/scsi/hisi_sas/Makefile

+1 −0
Original line number Diff line number Diff line 
obj-$(CONFIG_SCSI_HISI_SAS)		+= hisi_sas_main.o

obj-$(CONFIG_SCSI_HISI_SAS)		+= hisi_sas_v1_hw.o hisi_sas_v2_hw.o

obj-$(CONFIG_SCSI_HISI_SAS_PCI)		+= hisi_sas_v3_hw.o

drivers/scsi/hisi_sas/hisi_sas_v3_hw.c

0 → 100644
+47 −0
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2017 Hisilicon Limited.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 */



#include "hisi_sas.h"

#define DRV_NAME "hisi_sas_v3_hw"



static int

hisi_sas_v3_probe(struct pci_dev *pdev, const struct pci_device_id *id)

{

	return 0;

}



static void hisi_sas_v3_remove(struct pci_dev *pdev)

{

}



enum {

	/* instances of the controller */

	hip08,

};



static const struct pci_device_id sas_v3_pci_table[] = {

	{ PCI_VDEVICE(HUAWEI, 0xa230), hip08 },

	{}

};



static struct pci_driver sas_v3_pci_driver = {

	.name		= DRV_NAME,

	.id_table	= sas_v3_pci_table,

	.probe		= hisi_sas_v3_probe,

	.remove		= hisi_sas_v3_remove,

};



module_pci_driver(sas_v3_pci_driver);



MODULE_VERSION(DRV_VERSION);

MODULE_LICENSE("GPL");

MODULE_AUTHOR("John Garry <john.garry@huawei.com>");

MODULE_DESCRIPTION("HISILICON SAS controller v3 hw driver based on pci device");

MODULE_ALIAS("platform:" DRV_NAME);