IXP425: help on HSS channelized service
Juergen Schindele
schindele at nentec.de
Thu Nov 26 10:44:50 EST 2009
Am Donnerstag, 26. November 2009 schrieb Russell King - ARM Linux:
> On Thu, Nov 26, 2009 at 04:43:07PM +0200, Juergen Schindele wrote:
> > Am Mittwoch, 25. November 2009 schrieb Krzysztof Halasa:
> > > The buffers have different structures for RX and TX.
> > This was a very good hint :-). I discovered that the
> > "struct desc" used in the kernel mainline driver is quite
> > different from the one used in INTEL code !?????.
> > When I replace the "struct desc" (see below) it works fine for me.
> > Isn't there a general problem with this driver when it works only
> > for channelized mode (your case) ???
> > Has sombody made it working in HDLC_PIPE mode ????
> >
> > here my changes:
> > I replaced
> >
> > struct desc {
> > u32 next; /* pointer to next buffer, unused */
> >
> > #ifdef __ARMEB__
> > u16 buf_len; /* buffer length */
> > u16 pkt_len; /* packet length */
> > u32 data; /* pointer to data buffer in RAM */
> > u8 status;
> > u8 error_count;
> > u16 __reserved;
> > #else
> > u16 pkt_len; /* packet length */
> > u16 buf_len; /* buffer length */
> > u32 data; /* pointer to data buffer in RAM */
> > u16 __reserved;
> > u8 error_count;
> > u8 status;
> > #endif
> > u32 __reserved1[4];
>
> If these structures are sensitive to the byte-endian, they should be
> defined using [bl]e(32|16|8) so that sparse can check that you're
> using appropriate cpu_to_xxx() and xxx_to_cpu() endian conversions on
> them.
Thanks for your information. I can include "linux/types.h"
where are defined these typedefs (i think its what you mean):
typedef __u16 __bitwise __le16;
typedef __u16 __bitwise __be16;
typedef __u32 __bitwise __le32;
typedef __u32 __bitwise __be32;
but where are these ????
typedef __u8 __bitwise __le8;
typedef __u8 __bitwise __be8;
are they missing or am _I_ missing something ???
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Jürgen Schindele
Software-Entwicklung
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