Re: [PATCH anybus v1 4/4] misc: support HMS Profinet IRT industrial controller.

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Hi,

On 10/24/18 7:24 AM, Sven Van Asbroeck wrote:
> The Anybus-S PROFINET IRT communication module provides instant integration
> to any Ethernet based LAN via SMTP, FTP, HTTP as well as PROFINET and
> Modbus-TCP. Additional protocols can be implemented on top of TCP/IP
> or UDP using the transparent socket interface.
> 
> Official documentation:
> https://www.anybus.com/docs/librariesprovider7/default-document-library
> /manuals-design-guides/hms-hmsi-168-52.pdf
> 
> This implementation is an Anybus-S client driver, designed to be
> instantiated by the Anybus-S bus driver when it discovers the Profinet
> card.
> 
> If loaded successfully, the driver creates a /dev/profinet%d devnode,
> and a /sys/class/misc/profinet%d sysfs subdir:
> - the card can be configured with a single, atomic ioctl on the devnode;
> - the card's internal dpram is accessed by calling read/write/seek
>     on the devnode.
> - the card's "fieldbus specific area" properties can be accessed via
>     the sysfs dir.
> 
> Signed-off-by: Sven Van Asbroeck <svendev@xxxxxxxx>
> ---
>  drivers/misc/Kconfig              |  11 +
>  drivers/misc/Makefile             |   1 +
>  drivers/misc/hms-profinet.c       | 747 ++++++++++++++++++++++++++++++
>  include/uapi/linux/hms-common.h   |  14 +
>  include/uapi/linux/hms-profinet.h | 101 ++++
>  5 files changed, 874 insertions(+)
>  create mode 100644 drivers/misc/hms-profinet.c
>  create mode 100644 include/uapi/linux/hms-common.h
>  create mode 100644 include/uapi/linux/hms-profinet.h
> 
> diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
> index 3726eacdf65d..377fea2e3003 100644
> --- a/drivers/misc/Kconfig
> +++ b/drivers/misc/Kconfig
> @@ -406,6 +406,17 @@ config SPEAR13XX_PCIE_GADGET
>  	 entry will be created for that controller. User can use these
>  	 sysfs node to configure PCIe EP as per his requirements.
>  
> +config HMS_PROFINET
> +	tristate "HMS Profinet IRT Controller (Anybus-S)"
> +	select HMS_ANYBUSS_HOST
> +	default n

Please drop the "default n".

> +	help
> +	 If you say yes here you get support for the HMS Industrial
> +	 Networks Profinet IRT Controller.
> +	 This driver can also be built as a module. If so, the module
> +	 will be called hms-profinet.
> +	 If unsure, say N.
> +
>  config VMWARE_BALLOON
>  	tristate "VMware Balloon Driver"
>  	depends on VMWARE_VMCI && X86 && HYPERVISOR_GUEST

> diff --git a/drivers/misc/hms-profinet.c b/drivers/misc/hms-profinet.c
> new file mode 100644
> index 000000000000..7338a49cbddd
> --- /dev/null
> +++ b/drivers/misc/hms-profinet.c

Please check multi-line comment style in this source file.



> diff --git a/include/uapi/linux/hms-profinet.h b/include/uapi/linux/hms-profinet.h
> new file mode 100644
> index 000000000000..4ae5eab8ab43
> --- /dev/null
> +++ b/include/uapi/linux/hms-profinet.h
> @@ -0,0 +1,101 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright 2018 Archronix Corp. All Rights Reserved.
> + *
> + */
> +
> +#ifndef _UAPILINUX_PROFINET_H_
> +#define _UAPILINUX_PROFINET_H_
> +
> +#include <asm/types.h>
> +#include <linux/hms-common.h>
> +
> +#define PROFI_CFG_STRLEN	64
> +
> +struct ProfinetConfig {
> +	struct {
> +		/* addresses IN NETWORK ORDER! */
> +		__u32 ip_addr;
> +		__u32 subnet_msk;
> +		__u32 gateway_addr;
> +		__u8  is_valid:1;
> +	} eth;
> +	struct {
> +		__u16 vendorid, deviceid;
> +		__u8  is_valid:1;
> +	} dev_id;
> +	struct {
> +		char name[PROFI_CFG_STRLEN];
> +		__u8 is_valid:1;
> +	} station_name;
> +	struct {
> +		char name[PROFI_CFG_STRLEN];
> +		__u8 is_valid:1;
> +	} station_type;
> +	struct {
> +		__u8 addr[6];
> +		__u8 is_valid:1;
> +	} mac_addr;
> +	struct {
> +		char hostname[PROFI_CFG_STRLEN];
> +		char domainname[PROFI_CFG_STRLEN];
> +		__u8 is_valid:1;
> +	} host_domain;
> +	struct {
> +		__u8 enable:1;
> +		__u8 is_valid:1;
> +	} hicp;
> +	struct {
> +		__u8 enable:1;
> +		__u8 is_valid:1;
> +	} web_server;
> +	struct {
> +		__u8 disable:1;
> +	} ftp_server;
> +	struct {
> +		__u8 enable:1;
> +	} global_admin_mode;
> +	struct {
> +		__u8 disable:1;
> +	} vfs;
> +	struct {
> +		/* one of HMS_SMA_CLEAR/FREEZE/SET */
> +		int action;
> +		__u8 is_valid:1;
> +	} stop_mode;
> +	struct {
> +		char description[PROFI_CFG_STRLEN];
> +		__u8 is_valid:1;
> +	} snmp_system_descr;
> +	struct {
> +		char description[PROFI_CFG_STRLEN];
> +		__u8 is_valid:1;
> +	} snmp_iface_descr;
> +	struct {
> +		char description[PROFI_CFG_STRLEN];
> +		__u8 is_valid:1;
> +	} mib2_system_descr;
> +	struct {
> +		char contact[PROFI_CFG_STRLEN];
> +		__u8 is_valid:1;
> +	} mib2_system_contact;
> +	struct {
> +		char location[PROFI_CFG_STRLEN];
> +		__u8 is_valid:1;
> +	} mib2_system_location;
> +	/* use non-volatile defaults for any properties not specified.
> +	 * when in doubt, keep this OFF.
> +	 */
> +	__u8 use_nv_defaults:1;
> +};
> +
> +#define PROFINET_IOC_MAGIC 'l'
> +
> +/*
> + * Configures profinet according to the ProfinetConfig structure, and
> + * switches the card on if it was previously off.
> + */
> +#define PROFINET_IOCSETCONFIG   _IOW(PROFINET_IOC_MAGIC, 1,\
> +						struct ProfinetConfig)

ioctl magic numbers should be added to
Documentation/ioctl/ioctl-number.txt, please.

> +
> +#endif /* _UAPILINUX_PROFINET_H_ */
> 


-- 
~Randy



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