Re: [PATCH v3 01/16] switchtec: move structure definitions into a common header

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To follow the existing changelog subject pattern in drivers/ntb/hw, I
would change yours like this:

  -switchtec: move structure definitions into a common header
  +NTB: switchtec: Move structure definitions into a common header

I.e., add "NTB: " prefix and capitalize the first word of the
description.  If I were merging this, I would silently change this
myself, but obviously this already has my ack and will go through
Jon's tree.

On Tue, Jul 25, 2017 at 02:57:38PM -0600, Logan Gunthorpe wrote:
> Create the switchtec.h header in include/linux with hardware defines
> and the switchtec_dev structure. Both moved directly from switchtec.c.
> This is a prep patch for creating an NTB driver for Switchtec.
> 
> Signed-off-by: Logan Gunthorpe <logang@xxxxxxxxxxxx>
> Reviewed-by: Stephen Bates <sbates@xxxxxxxxxxxx>
> Reviewed-by: Kurt Schwemmer <kurt.schwemmer@xxxxxxxxxxxxx>
> Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> Acked-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
> ---
>  MAINTAINERS                    |   1 +
>  drivers/pci/switch/switchtec.c | 260 +-------------------------------------
>  include/linux/switchtec.h      | 279 +++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 281 insertions(+), 259 deletions(-)
>  create mode 100644 include/linux/switchtec.h
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 205d3977ac46..4ff2ad7c1c7b 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -10146,6 +10146,7 @@ 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@xxxxxxxxx>
> diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c
> index af81b2dec42e..5b75d3008ff8 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>
> @@ -20,8 +21,6 @@
>  #include <linux/fs.h>
>  #include <linux/uaccess.h>
>  #include <linux/poll.h>
> -#include <linux/pci.h>
> -#include <linux/cdev.h>
>  #include <linux/wait.h>
>  
>  MODULE_DESCRIPTION("Microsemi Switchtec(tm) PCIe Management Driver");
> @@ -37,263 +36,6 @@ 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;
> -
> -enum {
> -	SWITCHTEC_CFG0_RUNNING = 0x04,
> -	SWITCHTEC_CFG1_RUNNING = 0x05,
> -	SWITCHTEC_IMG0_RUNNING = 0x03,
> -	SWITCHTEC_IMG1_RUNNING = 0x07,
> -};
> -
> -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;
> -	u16 cfg_running;
> -	u16 img_running;
> -	u32 reserved2[57];
> -	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..1cbd0e63b0ab
> --- /dev/null
> +++ b/include/linux/switchtec.h
> @@ -0,0 +1,279 @@
> +/*
> + * 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;
> +
> +enum {
> +	SWITCHTEC_CFG0_RUNNING = 0x04,
> +	SWITCHTEC_CFG1_RUNNING = 0x05,
> +	SWITCHTEC_IMG0_RUNNING = 0x03,
> +	SWITCHTEC_IMG1_RUNNING = 0x07,
> +};
> +
> +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;
> +	u16 cfg_running;
> +	u16 img_running;
> +	u32 reserved2[57];
> +	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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