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@xxxxxxxxxx>
Signed-off-by: Xiang Chen <chenxiang66@xxxxxxxxxxxxx>
---
drivers/scsi/hisi_sas/Kconfig | 10 +++++++-
drivers/scsi/hisi_sas/Makefile | 1 +
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 47 ++++++++++++++++++++++++++++++++++
3 files changed, 57 insertions(+), 1 deletion(-)
create mode 100644 drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
diff --git a/drivers/scsi/hisi_sas/Kconfig b/drivers/scsi/hisi_sas/Kconfig
index 374a329..d42f29a 100644
--- a/drivers/scsi/hisi_sas/Kconfig
+++ b/drivers/scsi/hisi_sas/Kconfig
@@ -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
diff --git a/drivers/scsi/hisi_sas/Makefile b/drivers/scsi/hisi_sas/Makefile
index c6d3a1b..24623f2 100644
--- a/drivers/scsi/hisi_sas/Makefile
+++ b/drivers/scsi/hisi_sas/Makefile
@@ -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
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
new file mode 100644
index 0000000..cf72577
--- /dev/null
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -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@xxxxxxxxxx>");
+MODULE_DESCRIPTION("HISILICON SAS controller v3 hw driver based on pci device");
+MODULE_ALIAS("platform:" DRV_NAME);
--
1.9.1
