linux-kernel - RE: [MeeGo-Dev][PATCH] Topcliff: Update PCH

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <D5AB6E638E5A3E4B8F4406B113A5A19A28EA22F5@shsmsx501.ccr.corp.intel.com>
Date:	Wed, 11 Aug 2010 10:18:17 +0800
From:	"Wang, Qi" <qi.wang@...el.com>
To:	Masayuki Ohtake <masa-korg@....okisemi.com>,
	Greg KH <gregkh@...e.de>
CC:	"arjan@...ux.intel.com" <arjan@...ux.intel.com>,
	"Khor, Andrew Chih Howe" <andrew.chih.howe.khor@...el.com>,
	"Wang, Yong Y" <yong.y.wang@...el.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"meego-dev@...go.com" <meego-dev@...go.com>
Subject: RE: [MeeGo-Dev][PATCH] Topcliff: Update PCH_IEEE1588 driver to
 2.6.35

> -----Original Message-----
> From: Masayuki Ohtake [mailto:masa-korg@....okisemi.com]
> Sent: Wednesday, August 11, 2010 10:15 AM
> To: Greg KH; Wang, Qi
> Cc: arjan@...ux.intel.com; Khor, Andrew Chih Howe; Wang, Yong Y; LKML;
> meego-dev@...go.com
> Subject: Re: [MeeGo-Dev][PATCH] Topcliff: Update PCH_IEEE1588 driver to
> 2.6.35
> 
> > > > +#define TRUE 1
> > > > +#define FALSE 0
> > >
> > > These lines should not be needed at all.
> > OKI-san, please remove them, Those definition is useless.
> 
> Is the above definition is necessary?
> I can't find appropriate header file defines 'TRUE' and 'FALSE'.
> In addition, some drivers have these definitions.
> For example, drivers/char/mwave/smapi.h has the above definitions.

if (a == TRUE).... isn't necessary. Just if (a)... so you needn't 'TRUE'.
If (a == FALSE)... isn't necessary also. Just if (!a)..

Best Regards,
Qi.
> 
> Thanks, Ohtake
> ----- Original Message -----
> From: "Wang, Qi" <qi.wang@...el.com>
> To: "Greg KH" <gregkh@...e.de>; "Masayuki Ohtak"
> <masa-korg@....okisemi.com>
> Cc: <meego-dev@...go.com>; "LKML" <linux-kernel@...r.kernel.org>;
> "Wang, Yong Y" <yong.y.wang@...el.com>; "Khor, Andrew
> Chih Howe" <andrew.chih.howe.khor@...el.com>; <arjan@...ux.intel.com>
> Sent: Wednesday, August 11, 2010 10:20 AM
> Subject: RE: [MeeGo-Dev][PATCH] Topcliff: Update PCH_IEEE1588 driver to
> 2.6.35
> 
> 
> > > -----Original Message-----
> > > From: Greg KH [mailto:gregkh@...e.de]
> > > Sent: Wednesday, August 11, 2010 1:14 AM
> > > To: Masayuki Ohtak
> > > Cc: meego-dev@...go.com; LKML; Wang, Qi; Wang, Yong Y; Khor, Andrew
> > > Chih Howe; arjan@...ux.intel.com
> > > Subject: Re: [MeeGo-Dev][PATCH] Topcliff: Update PCH_IEEE1588 driver to
> > > 2.6.35
> > >
> > > On Tue, Aug 10, 2010 at 07:32:04PM +0900, Masayuki Ohtak wrote:
> > > > IEEE1588 driver of Topcliff PCH
> > > >
> > > > Topcliff PCH is the platform controller hub that is going to be used in
> > > > Intel's upcoming general embedded platform. All IO peripherals in
> > > > Topcliff PCH are actually devices sitting on AMBA bus.
> > > > Topcliff PCH has IEEE1588 I/F. This driver enables IEEE1588 function on
> CAN
> > > or
> > > > Ethernet communications.
> > >
> > > So it's a CAN or Ethernet driver?  If so, why isn't this a network
> > > driver like the CAN and Ethernet drivers?
> >
> > This socket CAN drivers which can use Berkeley socket API, and the Linux
> network stack and implements the CAN device
> drivers as network interfaces.
> > >
> > > > +#ifdef __GNUC__
> > > > +#define UNUSED __attribute__ ((unused))
> > > > +#define UNUSED_ARG(x)
> > > > +#else
> > > > +#define UNUSED
> > > > +#define UNUSED_ARG(x) (void) x
> > > > +#endif
> > > > +
> > > > +
> > > > +#define TRUE 1
> > > > +#define FALSE 0
> > >
> > > These lines should not be needed at all.
> > OKI-san, please remove them, Those definition is useless.
> > >
> > > > +#define IOC_1588_BASE 0xf8
> > >
> > > Do you have documentation for these new ioctls you are creating?  It's a
> > > lot of them:
> > >
> > > > +#define IOCTL_1588_PORT_CONFIG_SET \
> > > > + _IOW(IOC_1588_BASE, 0, struct pch_portcfg_ioctl)
> > > > +
> > > > +#define IOCTL_1588_PORT_CONFIG_GET \
> > > > + _IOWR(IOC_1588_BASE, 1, struct pch_portcfg_ioctl)
> > > > +
> > > > +#define IOCTL_1588_RX_POLL _IOWR(IOC_1588_BASE, 2, struct
> > > pch_rxtxpoll_ioctl)
> > > > +
> > > > +#define IOCTL_1588_TX_POLL _IOWR(IOC_1588_BASE, 3, struct
> > > pch_rxtxpoll_ioctl)
> > > > +
> > > > +#define IOCTL_1588_CAN_POLL _IOWR(IOC_1588_BASE, 4, struct
> > > pch_canpoll_ioctl)
> > > > +
> > > > +#define IOCTL_1588_SYS_TIME_GET _IOR(IOC_1588_BASE, 5, struct
> > > pch_tim_val)
> > > > +
> > > > +#define IOCTL_1588_SYS_TIME_SET _IOW(IOC_1588_BASE, 6, struct
> > > pch_tim_val)
> > > > +
> > > > +#define IOCTL_1588_TICK_RATE_SET _IOW(IOC_1588_BASE, 7, __u32)
> > > > +
> > > > +#define IOCTL_1588_TICK_RATE_GET _IOR(IOC_1588_BASE, 8, __u32)
> > > > +
> > > > +#define IOCTL_1588_TARG_TIME_INTRPT_ENABLE _IO(IOC_1588_BASE,
> 9)
> > > > +
> > > > +#define IOCTL_1588_TARG_TIME_INTRPT_DISABLE
> _IO(IOC_1588_BASE,
> > > 10)
> > > > +
> > > > +#define IOCTL_1588_TARG_TIME_POLL \
> > > > + _IOR(IOC_1588_BASE, 11, struct pch_timepoll_ioctl)
> > > > +
> > > > +#define IOCTL_1588_TARG_TIME_SET \
> > > > + _IOW(IOC_1588_BASE, 12, struct pch_tim_val)
> > > > +
> > > > +#define IOCTL_1588_TARG_TIME_GET \
> > > > + _IOR(IOC_1588_BASE, 13, struct pch_tim_val)
> > > > +
> > > > +#define IOCTL_1588_AUX_TIME_INTRPT_ENABLE
> _IOW(IOC_1588_BASE,
> > > 14,\
> > > > + enum pch_auxmode)
> > > > +
> > > > +#define IOCTL_1588_AUX_TIME_INTRPT_DISABLE
> _IOW(IOC_1588_BASE,
> > > 15,\
> > > > + enum pch_auxmode)
> > > > +
> > > > +#define IOCTL_1588_AUX_TIME_POLL \
> > > > + _IOWR(IOC_1588_BASE, 16, struct pch_timepoll_ioctl)
> > > > +
> > > > +#define IOCTL_1588_RESET _IO(IOC_1588_BASE, 17)
> > > > +
> > > > +#define IOCTL_1588_CHNL_RESET _IOW(IOC_1588_BASE, 18, enum
> > > pch_ptpport)
> > > > +
> > > > +#define IOCTL_1588_STATS_GET _IOR(IOC_1588_BASE, 19, struct
> > > pch_stats)
> > > > +
> > > > +#define IOCTL_1588_STATS_RESET _IO(IOC_1588_BASE, 20)
> > > > +
> > > > +#define IOCTL_1588_SHOW_ALL _IO(IOC_1588_BASE, 21)
> > > > +
> > > > +#define IOCTL_1588_AUX_TARG_TIME_INTRPT_ENABLE
> > > _IO(IOC_1588_BASE, 22)
> > > > +
> > > > +#define IOCTL_1588_AUX_TARG_TIME_INTRPT_DISABLE
> > > _IO(IOC_1588_BASE, 23)
> > > > +
> > > > +#define IOCTL_1588_AUX_TARG_TIME_POLL \
> > > > + _IOR(IOC_1588_BASE, 24, struct pch_timepoll_ioctl)
> > > > +
> > > > +#define IOCTL_1588_AUX_TARG_TIME_SET \
> > > > + _IOW(IOC_1588_BASE, 25, struct pch_tim_val)
> > > > +
> > > > +#define IOCTL_1588_AUX_TARG_TIME_GET \
> > > > + _IOR(IOC_1588_BASE, 26, struct pch_tim_val)
> > > > +
> > > > +#define IOCTL_1588_PULSE_PER_SEC_INTRPT_ENABLE
> > > _IO(IOC_1588_BASE, 27)
> > > > +
> > > > +#define IOCTL_1588_PULSE_PER_SEC_INTRPT_DISABLE
> > > _IO(IOC_1588_BASE, 28)
> > > > +
> > > > +#define IOCTL_1588_TARG_TIME_NOTIFY \
> > > > + _IOR(IOC_1588_BASE, 29, struct pch_tim_val)
> > > > +
> > > > +#define IOCTL_1588_AUX_TIME_NOTIFY \
> > > > + _IOR(IOC_1588_BASE, 30, struct pch_auxtimeioctl)
> > > > +
> > > > +#define IOCTL_1588_AUX_TARG_TIME_NOTIFY \
> > > > + _IOR(IOC_1588_BASE, 31, struct pch_tim_val)
> > > > +
> > > > +#define IOCTL_1588_PULSE_PER_SEC_NOTIFY _IOR(IOC_1588_BASE,
> 32,
> > > __u32)
> > > > +
> > > > +#define IOCTL_1588_TARG_TIME_CLR_NOTIFY _IO(IOC_1588_BASE, 33)
> > > > +
> > > > +#define IOCTL_1588_AUX_TIME_CLR_NOTIFY _IO(IOC_1588_BASE, 34)
> > > > +
> > > > +#define IOCTL_1588_AUX_TARG_TIME_CLR_NOTIFY
> _IO(IOC_1588_BASE,
> > > 35)
> > > > +
> > > > +#define IOCTL_1588_PULSE_PER_SEC_CLR_NOTIFY
> _IO(IOC_1588_BASE,
> > > 36)
> > > > +
> > > > +#define IOCTL_1588_PULSE_PER_SEC_TIME_GET _IOR(IOC_1588_BASE,
> 37,
> > > __u32)
> > > > +
> > > > +#define IOCTL_1588_PULSE_PER_SEC_TIME_SET _IOW(IOC_1588_BASE,
> 38,
> > > __u32)
> > > > +
> > > > +#define IOCTL_1588_PORT_VERSION_SET \
> > > > + _IOW(IOC_1588_BASE, 39, struct pch_versionioctl)
> > > > +
> > > > +#define IOCTL_1588_PORT_VERSION_GET \
> > > > + _IOWR(IOC_1588_BASE, 40, struct pch_versionioctl)
> > > > +
> > > > +#define IOCTL_1588_PORT_OPERATION_MODE_SET \
> > > > + _IOW(IOC_1588_BASE, 41, struct pch_opemode_ioctl)
> > > > +
> > > > +#define IOCTL_1588_PORT_OPERATION_MODE_GET \
> > > > + _IOWR(IOC_1588_BASE, 42, struct pch_opemode_ioctl)
> > >
> > > Do they all have to be ioctls?  What exactly are they doing?
> > >
> > > And are they 32/64bit safe?
> > >
> > > thanks,
> > >
> > > greg k-h
> >
> > Best Regards,
> > Qi
> >
>