Date: Mon, 09 Dec 2002 21:32:54 +0100 From: phk@FreeBSD.ORG To: Nate Lawson <nate@root.org> Cc: "M. Warner Losh" <imp@bsdimp.com>, arch@FreeBSD.ORG Subject: Re: le??toh, etc in userland Message-ID: <75959.1039465974@critter.freebsd.dk> In-Reply-To: Your message of "Mon, 09 Dec 2002 12:23:38 PST." <Pine.BSF.4.21.0212091220220.25027-100000@root.org>
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In message <Pine.BSF.4.21.0212091220220.25027-100000@root.org>, Nate Lawson wri tes: >> I would really like to also have the "byte-encoding" version in a >> more general place than in GEOM, but I am not aware of any suitable >> standards in this area. >> >> The reason of these is that the data encoded/decoded may not live >> on native alignment boundaries, so the normal "swap-as-needed" >> functions are not very efficient. > >Already present in CAM (sys/cam/ssi_all.h): >static __inline void scsi_ulto2b(u_int32_t val, u_int8_t *bytes); >static __inline void scsi_ulto3b(u_int32_t val, u_int8_t *bytes); >static __inline void scsi_ulto4b(u_int32_t val, u_int8_t *bytes); >static __inline u_int32_t scsi_2btoul(u_int8_t *bytes); >static __inline u_int32_t scsi_3btoul(u_int8_t *bytes); >static __inline int32_t scsi_3btol(u_int8_t *bytes); >static __inline u_int32_t scsi_4btoul(u_int8_t *bytes); > >I would love to have a 64 bit version and map these to a generic host >version. It should use u_int8_t instead of u_char though. Well, all the more reason to get standardized on this before we grow a third and fourth private copy. Does anyone know of any applicable standards anywhere which addresses this ? -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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