Message-Id: <20170615203729.9009-2-logang@deltatee.com>
Date:   Thu, 15 Jun 2017 14:37:17 -0600
From:   Logan Gunthorpe <logang@...tatee.com>
To:     linux-ntb@...glegroups.com, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Jon Mason <jdmason@...zu.us>, Dave Jiang <dave.jiang@...el.com>,
        Allen Hubbe <Allen.Hubbe@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Kurt Schwemmer <kurt.schwemmer@...rosemi.com>,
        Stephen Bates <sbates@...thlin.com>,
        Logan Gunthorpe <logang@...tatee.com>
Subject: [RFC PATCH 01/13] switchtec: move structure definitions into a common header

Create the switchtec.h header in include/linux with hardware defines
and the switchtec_dev structure moved directly from switchtec.c.
This is a prep patch for created an NTB driver for switchtec.

Signed-off-by: Logan Gunthorpe <logang@...tatee.com>
Reviewed-by: Stephen Bates <sbates@...thlin.com>
Reviewed-by: Kurt Schwemmer <kurt.schwemmer@...rosemi.com>
---
 MAINTAINERS                    |   1 +
 drivers/pci/switch/switchtec.c | 249 +------------------------------------
 include/linux/switchtec.h      | 270 +++++++++++++++++++++++++++++++++++++++++
 3 files changed, 272 insertions(+), 248 deletions(-)
 create mode 100644 include/linux/switchtec.h

diff --git a/MAINTAINERS b/MAINTAINERS
index 09b5ab6a8a5c..6cee5e253ec3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9841,6 +9841,7 @@ F:	Documentation/switchtec.txt
 F:	Documentation/ABI/testing/sysfs-class-switchtec
 F:	drivers/pci/switch/switchtec*
 F:	include/uapi/linux/switchtec_ioctl.h
+F:	include/linux/switchtec.h
 
 PCI DRIVER FOR NVIDIA TEGRA
 M:	Thierry Reding <thierry.reding@...il.com>
diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c
index f6a63406c76e..c4369ba7bbc1 100644
--- a/drivers/pci/switch/switchtec.c
+++ b/drivers/pci/switch/switchtec.c
@@ -13,6 +13,7 @@
  *
  */
 
+#include <linux/switchtec.h>
 #include <linux/switchtec_ioctl.h>
 
 #include <linux/interrupt.h>
@@ -37,254 +38,6 @@ static dev_t switchtec_devt;
 static struct class *switchtec_class;
 static DEFINE_IDA(switchtec_minor_ida);
 
-#define MICROSEMI_VENDOR_ID         0x11f8
-#define MICROSEMI_NTB_CLASSCODE     0x068000
-#define MICROSEMI_MGMT_CLASSCODE    0x058000
-
-#define SWITCHTEC_MRPC_PAYLOAD_SIZE 1024
-#define SWITCHTEC_MAX_PFF_CSR 48
-
-#define SWITCHTEC_EVENT_OCCURRED BIT(0)
-#define SWITCHTEC_EVENT_CLEAR    BIT(0)
-#define SWITCHTEC_EVENT_EN_LOG   BIT(1)
-#define SWITCHTEC_EVENT_EN_CLI   BIT(2)
-#define SWITCHTEC_EVENT_EN_IRQ   BIT(3)
-#define SWITCHTEC_EVENT_FATAL    BIT(4)
-
-enum {
-	SWITCHTEC_GAS_MRPC_OFFSET       = 0x0000,
-	SWITCHTEC_GAS_TOP_CFG_OFFSET    = 0x1000,
-	SWITCHTEC_GAS_SW_EVENT_OFFSET   = 0x1800,
-	SWITCHTEC_GAS_SYS_INFO_OFFSET   = 0x2000,
-	SWITCHTEC_GAS_FLASH_INFO_OFFSET = 0x2200,
-	SWITCHTEC_GAS_PART_CFG_OFFSET   = 0x4000,
-	SWITCHTEC_GAS_NTB_OFFSET        = 0x10000,
-	SWITCHTEC_GAS_PFF_CSR_OFFSET    = 0x134000,
-};
-
-struct mrpc_regs {
-	u8 input_data[SWITCHTEC_MRPC_PAYLOAD_SIZE];
-	u8 output_data[SWITCHTEC_MRPC_PAYLOAD_SIZE];
-	u32 cmd;
-	u32 status;
-	u32 ret_value;
-} __packed;
-
-enum mrpc_status {
-	SWITCHTEC_MRPC_STATUS_INPROGRESS = 1,
-	SWITCHTEC_MRPC_STATUS_DONE = 2,
-	SWITCHTEC_MRPC_STATUS_ERROR = 0xFF,
-	SWITCHTEC_MRPC_STATUS_INTERRUPTED = 0x100,
-};
-
-struct sw_event_regs {
-	u64 event_report_ctrl;
-	u64 reserved1;
-	u64 part_event_bitmap;
-	u64 reserved2;
-	u32 global_summary;
-	u32 reserved3[3];
-	u32 stack_error_event_hdr;
-	u32 stack_error_event_data;
-	u32 reserved4[4];
-	u32 ppu_error_event_hdr;
-	u32 ppu_error_event_data;
-	u32 reserved5[4];
-	u32 isp_error_event_hdr;
-	u32 isp_error_event_data;
-	u32 reserved6[4];
-	u32 sys_reset_event_hdr;
-	u32 reserved7[5];
-	u32 fw_exception_hdr;
-	u32 reserved8[5];
-	u32 fw_nmi_hdr;
-	u32 reserved9[5];
-	u32 fw_non_fatal_hdr;
-	u32 reserved10[5];
-	u32 fw_fatal_hdr;
-	u32 reserved11[5];
-	u32 twi_mrpc_comp_hdr;
-	u32 twi_mrpc_comp_data;
-	u32 reserved12[4];
-	u32 twi_mrpc_comp_async_hdr;
-	u32 twi_mrpc_comp_async_data;
-	u32 reserved13[4];
-	u32 cli_mrpc_comp_hdr;
-	u32 cli_mrpc_comp_data;
-	u32 reserved14[4];
-	u32 cli_mrpc_comp_async_hdr;
-	u32 cli_mrpc_comp_async_data;
-	u32 reserved15[4];
-	u32 gpio_interrupt_hdr;
-	u32 gpio_interrupt_data;
-	u32 reserved16[4];
-} __packed;
-
-struct sys_info_regs {
-	u32 device_id;
-	u32 device_version;
-	u32 firmware_version;
-	u32 reserved1;
-	u32 vendor_table_revision;
-	u32 table_format_version;
-	u32 partition_id;
-	u32 cfg_file_fmt_version;
-	u32 reserved2[58];
-	char vendor_id[8];
-	char product_id[16];
-	char product_revision[4];
-	char component_vendor[8];
-	u16 component_id;
-	u8 component_revision;
-} __packed;
-
-struct flash_info_regs {
-	u32 flash_part_map_upd_idx;
-
-	struct active_partition_info {
-		u32 address;
-		u32 build_version;
-		u32 build_string;
-	} active_img;
-
-	struct active_partition_info active_cfg;
-	struct active_partition_info inactive_img;
-	struct active_partition_info inactive_cfg;
-
-	u32 flash_length;
-
-	struct partition_info {
-		u32 address;
-		u32 length;
-	} cfg0;
-
-	struct partition_info cfg1;
-	struct partition_info img0;
-	struct partition_info img1;
-	struct partition_info nvlog;
-	struct partition_info vendor[8];
-};
-
-struct ntb_info_regs {
-	u8  partition_count;
-	u8  partition_id;
-	u16 reserved1;
-	u64 ep_map;
-	u16 requester_id;
-} __packed;
-
-struct part_cfg_regs {
-	u32 status;
-	u32 state;
-	u32 port_cnt;
-	u32 usp_port_mode;
-	u32 usp_pff_inst_id;
-	u32 vep_pff_inst_id;
-	u32 dsp_pff_inst_id[47];
-	u32 reserved1[11];
-	u16 vep_vector_number;
-	u16 usp_vector_number;
-	u32 port_event_bitmap;
-	u32 reserved2[3];
-	u32 part_event_summary;
-	u32 reserved3[3];
-	u32 part_reset_hdr;
-	u32 part_reset_data[5];
-	u32 mrpc_comp_hdr;
-	u32 mrpc_comp_data[5];
-	u32 mrpc_comp_async_hdr;
-	u32 mrpc_comp_async_data[5];
-	u32 dyn_binding_hdr;
-	u32 dyn_binding_data[5];
-	u32 reserved4[159];
-} __packed;
-
-enum {
-	SWITCHTEC_PART_CFG_EVENT_RESET = 1 << 0,
-	SWITCHTEC_PART_CFG_EVENT_MRPC_CMP = 1 << 1,
-	SWITCHTEC_PART_CFG_EVENT_MRPC_ASYNC_CMP = 1 << 2,
-	SWITCHTEC_PART_CFG_EVENT_DYN_PART_CMP = 1 << 3,
-};
-
-struct pff_csr_regs {
-	u16 vendor_id;
-	u16 device_id;
-	u32 pci_cfg_header[15];
-	u32 pci_cap_region[48];
-	u32 pcie_cap_region[448];
-	u32 indirect_gas_window[128];
-	u32 indirect_gas_window_off;
-	u32 reserved[127];
-	u32 pff_event_summary;
-	u32 reserved2[3];
-	u32 aer_in_p2p_hdr;
-	u32 aer_in_p2p_data[5];
-	u32 aer_in_vep_hdr;
-	u32 aer_in_vep_data[5];
-	u32 dpc_hdr;
-	u32 dpc_data[5];
-	u32 cts_hdr;
-	u32 cts_data[5];
-	u32 reserved3[6];
-	u32 hotplug_hdr;
-	u32 hotplug_data[5];
-	u32 ier_hdr;
-	u32 ier_data[5];
-	u32 threshold_hdr;
-	u32 threshold_data[5];
-	u32 power_mgmt_hdr;
-	u32 power_mgmt_data[5];
-	u32 tlp_throttling_hdr;
-	u32 tlp_throttling_data[5];
-	u32 force_speed_hdr;
-	u32 force_speed_data[5];
-	u32 credit_timeout_hdr;
-	u32 credit_timeout_data[5];
-	u32 link_state_hdr;
-	u32 link_state_data[5];
-	u32 reserved4[174];
-} __packed;
-
-struct switchtec_dev {
-	struct pci_dev *pdev;
-	struct device dev;
-	struct cdev cdev;
-
-	int partition;
-	int partition_count;
-	int pff_csr_count;
-	char pff_local[SWITCHTEC_MAX_PFF_CSR];
-
-	void __iomem *mmio;
-	struct mrpc_regs __iomem *mmio_mrpc;
-	struct sw_event_regs __iomem *mmio_sw_event;
-	struct sys_info_regs __iomem *mmio_sys_info;
-	struct flash_info_regs __iomem *mmio_flash_info;
-	struct ntb_info_regs __iomem *mmio_ntb;
-	struct part_cfg_regs __iomem *mmio_part_cfg;
-	struct part_cfg_regs __iomem *mmio_part_cfg_all;
-	struct pff_csr_regs __iomem *mmio_pff_csr;
-
-	/*
-	 * The mrpc mutex must be held when accessing the other
-	 * mrpc_ fields, alive flag and stuser->state field
-	 */
-	struct mutex mrpc_mutex;
-	struct list_head mrpc_queue;
-	int mrpc_busy;
-	struct work_struct mrpc_work;
-	struct delayed_work mrpc_timeout;
-	bool alive;
-
-	wait_queue_head_t event_wq;
-	atomic_t event_cnt;
-};
-
-static struct switchtec_dev *to_stdev(struct device *dev)
-{
-	return container_of(dev, struct switchtec_dev, dev);
-}
-
 enum mrpc_state {
 	MRPC_IDLE = 0,
 	MRPC_QUEUED,
diff --git a/include/linux/switchtec.h b/include/linux/switchtec.h
new file mode 100644
index 000000000000..508cda78a430
--- /dev/null
+++ b/include/linux/switchtec.h
@@ -0,0 +1,270 @@
+/*
+ * Microsemi Switchtec PCIe Driver
+ * Copyright (c) 2017, Microsemi Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef _SWITCHTEC_H
+#define _SWITCHTEC_H
+
+#include <linux/pci.h>
+#include <linux/cdev.h>
+
+#define MICROSEMI_VENDOR_ID         0x11f8
+#define MICROSEMI_NTB_CLASSCODE     0x068000
+#define MICROSEMI_MGMT_CLASSCODE    0x058000
+
+#define SWITCHTEC_MRPC_PAYLOAD_SIZE 1024
+#define SWITCHTEC_MAX_PFF_CSR 48
+
+#define SWITCHTEC_EVENT_OCCURRED BIT(0)
+#define SWITCHTEC_EVENT_CLEAR    BIT(0)
+#define SWITCHTEC_EVENT_EN_LOG   BIT(1)
+#define SWITCHTEC_EVENT_EN_CLI   BIT(2)
+#define SWITCHTEC_EVENT_EN_IRQ   BIT(3)
+#define SWITCHTEC_EVENT_FATAL    BIT(4)
+
+enum {
+	SWITCHTEC_GAS_MRPC_OFFSET       = 0x0000,
+	SWITCHTEC_GAS_TOP_CFG_OFFSET    = 0x1000,
+	SWITCHTEC_GAS_SW_EVENT_OFFSET   = 0x1800,
+	SWITCHTEC_GAS_SYS_INFO_OFFSET   = 0x2000,
+	SWITCHTEC_GAS_FLASH_INFO_OFFSET = 0x2200,
+	SWITCHTEC_GAS_PART_CFG_OFFSET   = 0x4000,
+	SWITCHTEC_GAS_NTB_OFFSET        = 0x10000,
+	SWITCHTEC_GAS_PFF_CSR_OFFSET    = 0x134000,
+};
+
+struct mrpc_regs {
+	u8 input_data[SWITCHTEC_MRPC_PAYLOAD_SIZE];
+	u8 output_data[SWITCHTEC_MRPC_PAYLOAD_SIZE];
+	u32 cmd;
+	u32 status;
+	u32 ret_value;
+} __packed;
+
+enum mrpc_status {
+	SWITCHTEC_MRPC_STATUS_INPROGRESS = 1,
+	SWITCHTEC_MRPC_STATUS_DONE = 2,
+	SWITCHTEC_MRPC_STATUS_ERROR = 0xFF,
+	SWITCHTEC_MRPC_STATUS_INTERRUPTED = 0x100,
+};
+
+struct sw_event_regs {
+	u64 event_report_ctrl;
+	u64 reserved1;
+	u64 part_event_bitmap;
+	u64 reserved2;
+	u32 global_summary;
+	u32 reserved3[3];
+	u32 stack_error_event_hdr;
+	u32 stack_error_event_data;
+	u32 reserved4[4];
+	u32 ppu_error_event_hdr;
+	u32 ppu_error_event_data;
+	u32 reserved5[4];
+	u32 isp_error_event_hdr;
+	u32 isp_error_event_data;
+	u32 reserved6[4];
+	u32 sys_reset_event_hdr;
+	u32 reserved7[5];
+	u32 fw_exception_hdr;
+	u32 reserved8[5];
+	u32 fw_nmi_hdr;
+	u32 reserved9[5];
+	u32 fw_non_fatal_hdr;
+	u32 reserved10[5];
+	u32 fw_fatal_hdr;
+	u32 reserved11[5];
+	u32 twi_mrpc_comp_hdr;
+	u32 twi_mrpc_comp_data;
+	u32 reserved12[4];
+	u32 twi_mrpc_comp_async_hdr;
+	u32 twi_mrpc_comp_async_data;
+	u32 reserved13[4];
+	u32 cli_mrpc_comp_hdr;
+	u32 cli_mrpc_comp_data;
+	u32 reserved14[4];
+	u32 cli_mrpc_comp_async_hdr;
+	u32 cli_mrpc_comp_async_data;
+	u32 reserved15[4];
+	u32 gpio_interrupt_hdr;
+	u32 gpio_interrupt_data;
+	u32 reserved16[4];
+} __packed;
+
+struct sys_info_regs {
+	u32 device_id;
+	u32 device_version;
+	u32 firmware_version;
+	u32 reserved1;
+	u32 vendor_table_revision;
+	u32 table_format_version;
+	u32 partition_id;
+	u32 cfg_file_fmt_version;
+	u32 reserved2[58];
+	char vendor_id[8];
+	char product_id[16];
+	char product_revision[4];
+	char component_vendor[8];
+	u16 component_id;
+	u8 component_revision;
+} __packed;
+
+struct flash_info_regs {
+	u32 flash_part_map_upd_idx;
+
+	struct active_partition_info {
+		u32 address;
+		u32 build_version;
+		u32 build_string;
+	} active_img;
+
+	struct active_partition_info active_cfg;
+	struct active_partition_info inactive_img;
+	struct active_partition_info inactive_cfg;
+
+	u32 flash_length;
+
+	struct partition_info {
+		u32 address;
+		u32 length;
+	} cfg0;
+
+	struct partition_info cfg1;
+	struct partition_info img0;
+	struct partition_info img1;
+	struct partition_info nvlog;
+	struct partition_info vendor[8];
+};
+
+struct ntb_info_regs {
+	u8  partition_count;
+	u8  partition_id;
+	u16 reserved1;
+	u64 ep_map;
+	u16 requester_id;
+} __packed;
+
+struct part_cfg_regs {
+	u32 status;
+	u32 state;
+	u32 port_cnt;
+	u32 usp_port_mode;
+	u32 usp_pff_inst_id;
+	u32 vep_pff_inst_id;
+	u32 dsp_pff_inst_id[47];
+	u32 reserved1[11];
+	u16 vep_vector_number;
+	u16 usp_vector_number;
+	u32 port_event_bitmap;
+	u32 reserved2[3];
+	u32 part_event_summary;
+	u32 reserved3[3];
+	u32 part_reset_hdr;
+	u32 part_reset_data[5];
+	u32 mrpc_comp_hdr;
+	u32 mrpc_comp_data[5];
+	u32 mrpc_comp_async_hdr;
+	u32 mrpc_comp_async_data[5];
+	u32 dyn_binding_hdr;
+	u32 dyn_binding_data[5];
+	u32 reserved4[159];
+} __packed;
+
+enum {
+	SWITCHTEC_PART_CFG_EVENT_RESET = 1 << 0,
+	SWITCHTEC_PART_CFG_EVENT_MRPC_CMP = 1 << 1,
+	SWITCHTEC_PART_CFG_EVENT_MRPC_ASYNC_CMP = 1 << 2,
+	SWITCHTEC_PART_CFG_EVENT_DYN_PART_CMP = 1 << 3,
+};
+
+struct pff_csr_regs {
+	u16 vendor_id;
+	u16 device_id;
+	u32 pci_cfg_header[15];
+	u32 pci_cap_region[48];
+	u32 pcie_cap_region[448];
+	u32 indirect_gas_window[128];
+	u32 indirect_gas_window_off;
+	u32 reserved[127];
+	u32 pff_event_summary;
+	u32 reserved2[3];
+	u32 aer_in_p2p_hdr;
+	u32 aer_in_p2p_data[5];
+	u32 aer_in_vep_hdr;
+	u32 aer_in_vep_data[5];
+	u32 dpc_hdr;
+	u32 dpc_data[5];
+	u32 cts_hdr;
+	u32 cts_data[5];
+	u32 reserved3[6];
+	u32 hotplug_hdr;
+	u32 hotplug_data[5];
+	u32 ier_hdr;
+	u32 ier_data[5];
+	u32 threshold_hdr;
+	u32 threshold_data[5];
+	u32 power_mgmt_hdr;
+	u32 power_mgmt_data[5];
+	u32 tlp_throttling_hdr;
+	u32 tlp_throttling_data[5];
+	u32 force_speed_hdr;
+	u32 force_speed_data[5];
+	u32 credit_timeout_hdr;
+	u32 credit_timeout_data[5];
+	u32 link_state_hdr;
+	u32 link_state_data[5];
+	u32 reserved4[174];
+} __packed;
+
+struct switchtec_dev {
+	struct pci_dev *pdev;
+	struct device dev;
+	struct cdev cdev;
+
+	int partition;
+	int partition_count;
+	int pff_csr_count;
+	char pff_local[SWITCHTEC_MAX_PFF_CSR];
+
+	void __iomem *mmio;
+	struct mrpc_regs __iomem *mmio_mrpc;
+	struct sw_event_regs __iomem *mmio_sw_event;
+	struct sys_info_regs __iomem *mmio_sys_info;
+	struct flash_info_regs __iomem *mmio_flash_info;
+	struct ntb_info_regs __iomem *mmio_ntb;
+	struct part_cfg_regs __iomem *mmio_part_cfg;
+	struct part_cfg_regs __iomem *mmio_part_cfg_all;
+	struct pff_csr_regs __iomem *mmio_pff_csr;
+
+	/*
+	 * The mrpc mutex must be held when accessing the other
+	 * mrpc_ fields, alive flag and stuser->state field
+	 */
+	struct mutex mrpc_mutex;
+	struct list_head mrpc_queue;
+	int mrpc_busy;
+	struct work_struct mrpc_work;
+	struct delayed_work mrpc_timeout;
+	bool alive;
+
+	wait_queue_head_t event_wq;
+	atomic_t event_cnt;
+};
+
+static inline struct switchtec_dev *to_stdev(struct device *dev)
+{
+	return container_of(dev, struct switchtec_dev, dev);
+}
+
+#endif
-- 
2.11.0

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