Date: Sun, 22 Mar 2020 13:38:57 +0200 From: Konstantin Belousov <kib@freebsd.org> To: Rajesh Kumar <rajfbsd@gmail.com> Cc: freebsd-drivers@freebsd.org, FreeBSD Hackers <freebsd-hackers@freebsd.org> Subject: Re: How to build a out-of-box network module with RSS Message-ID: <20200322113857.GU1992@kib.kiev.ua> In-Reply-To: <CAAO%2BANNphg=KbeDvc77kNaMGwqUVeWhvUyknqAqOGhH=iq418g@mail.gmail.com> References: <CAAO%2BANPJozXfaA4Y9Y8X9dcSPfa4Yig_gTKQKdLL85ej=dH8MA@mail.gmail.com> <CAAO%2BANPEAxax-PAtRXdFgG2Sar=Gm9A9Y=Gcb89sPTSjhKqm-Q@mail.gmail.com> <CAAO%2BANNphg=KbeDvc77kNaMGwqUVeWhvUyknqAqOGhH=iq418g@mail.gmail.com>
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On Sun, Mar 22, 2020 at 02:05:02PM +0530, Rajesh Kumar wrote: > Hi Konstantin, > > > Set KERNBUILDDIR env (or make) variable to the full path of the > > build directory for your custom kernel. > > Thanks for your inputs. I tried setting the KERNBUILDDIR, but seems still > it's not taking the opt_rss.h properly. Not sure I am missing something. > > I built and installed the custom kernel from a directory "freebsd_12_kern" > with the sys/amd64/conf/GENERIC added with the PCBGROUP and RSS options. I > see the following obj directory > > */usr/obj/root/freebsd_12_kern/amd64.amd64/sys/GENERIC* -> where opt_rss.h > file has RSS defined. > > After that, I tried to build my network module from another directory > "freebsd_12_dev" as below > > *freebsd_12_dev/sys/modules/netgbe # make KERNBUILDDIR= > /usr/obj/root/freebsd_12_kern/amd64.amd64/sys/GENERIC * > > which generates the following object module directory > > */usr/obj/root/freebsd_12_dev/amd64.amd64/sys/modules/netgbe* -> where > opt_rss.h file has RSS NOT defined. opt_rss.h must not be generated in the module build directory. The point of KERNBUILDDIR is that it is taken from the kernel config dir. > > Am I missing something? or doing something wrong? No idea. > > Thanks, > Rajesh > > On Sun, Mar 22, 2020 at 10:50 AM Rajesh Kumar <rajfbsd@gmail.com> wrote: > > > Hi, > > > > Any thoughts about how to build a out-of-box network module with RSS > > enabled? > > > > Thanks, > > Rajesh. > > > > On Fri, Mar 20, 2020 at 11:34 AM Rajesh Kumar <rajfbsd@gmail.com> wrote: > > > >> Hi, > >> > >> I am writing a network driver. I am trying to test with RSS feature. I > >> see the default kernel config doesn't have RSS included. So, I built a > >> custom kernel with the following options set and installed the kernel with > >> a different name > >> > >> options PCBGROUP > >> options RSS > >> > >> After booting to the custom kernel, I am trying to build my network > >> module with opt_rss.h in my makefile. But I don't see "#define RSS 1" in > >> opt_rss.h in my module object directory. But I see it defined the custom > >> kernel OBJ directory. > >> > >> So, should I build my network modules as inbuilt module to have it work > >> with RSS? Or anyway I can build my module out-of-box with RSS? > >> > >> Please let me know if any details needed. > >> > >> Thanks, > >> Rajesh. > >> > > > _______________________________________________ > freebsd-drivers@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-drivers > To unsubscribe, send any mail to "freebsd-drivers-unsubscribe@freebsd.org"
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