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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: John Garry <john.garry@huawei.com>
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
zero-colors
John Garry 2017-06-14 23:33:19 +08:00 committed by Martin K. Petersen
parent 0fa24c19d8
commit 92f61e3bc2
3 changed files with 57 additions and 1 deletions
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10
drivers/scsi/hisi_sas/Kconfig
View File

@ -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

1
drivers/scsi/hisi_sas/Makefile
View File

@ -1,2 +1,3 @@
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

47
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c 100644
View File

@ -0,0 +1,47 @@
/*
* 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);