From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Fri, 17 Jun 2022 14:04:25 +0200 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1o2Ai8-005AqB-MW for lore@lore.pengutronix.de; Fri, 17 Jun 2022 14:04:25 +0200 Received: from localhost ([127.0.0.1] helo=metis.ext.pengutronix.de) by metis.ext.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1o2Ai8-0001kW-Rd; Fri, 17 Jun 2022 14:04:24 +0200 Received: from ptx.hi.pengutronix.de ([2001:67c:670:100:1d::c0]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1o2Ahw-0001jw-EJ; Fri, 17 Jun 2022 14:04:12 +0200 Received: from mol by ptx.hi.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1o2Ahw-00041Z-55; Fri, 17 Jun 2022 14:04:12 +0200 Date: Fri, 17 Jun 2022 14:04:12 +0200 From: Michael Olbrich To: Enrico =?iso-8859-1?Q?J=F6rns?= Message-ID: <20220617120412.GS13709@pengutronix.de> Mail-Followup-To: Enrico =?iso-8859-1?Q?J=F6rns?= , ptxdist@pengutronix.de, jlu@pengutronix.de References: <20220615142217.990960-1-ejo@pengutronix.de> <20220615142217.990960-3-ejo@pengutronix.de> <20220617102750.GQ13709@pengutronix.de> <20220617104814.GR13709@pengutronix.de> <2a5e1e8a93ac948c1e940df0f59398a5f7455b5f.camel@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <2a5e1e8a93ac948c1e940df0f59398a5f7455b5f.camel@pengutronix.de> X-Sent-From: Pengutronix Hildesheim X-URL: http://www.pengutronix.de/ X-Accept-Language: de,en X-Accept-Content-Type: text/plain User-Agent: Mutt/1.10.1 (2018-07-13) Subject: Re: [ptxdist] [PATCH 2/5] RAUC: add option to enable streaming support X-BeenThere: ptxdist@pengutronix.de X-Mailman-Version: 2.1.29 Precedence: list List-Id: PTXdist Development Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: ptxdist@pengutronix.de Cc: ptxdist@pengutronix.de, jlu@pengutronix.de Sender: "ptxdist" X-SA-Exim-Connect-IP: 127.0.0.1 X-SA-Exim-Mail-From: ptxdist-bounces@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false On Fri, Jun 17, 2022 at 01:47:14PM +0200, Enrico Jörns wrote: > Am Freitag, dem 17.06.2022 um 12:48 +0200 schrieb Michael Olbrich: > > On Fri, Jun 17, 2022 at 12:27:50PM +0200, Michael Olbrich wrote: > > > On Fri, Jun 17, 2022 at 11:47:19AM +0200, Enrico Jörns wrote: > > > > Am Freitag, dem 17.06.2022 um 08:28 +0200 schrieb Michael Olbrich: > > > > > On Wed, Jun 15, 2022 at 04:22:14PM +0200, Enrico Jorns wrote: > > > > > > Enable it by default so that default installation can benefit from this. > > > > > > Can be deactivated for saving space or for deactivating network > > > > > > functionality. > > > > > > Web server must support HTTP range requests for this and NBD support > > > > > > must be enabled in kernel. > > > > > > > > > > > > Signed-off-by: Enrico Jorns > > > > > > --- > > > > > > rules/rauc.in | 11 +++++++++++ > > > > > > rules/rauc.make | 1 + > > > > > > 2 files changed, 12 insertions(+) > > > > > > > > > > > > diff --git a/rules/rauc.in b/rules/rauc.in > > > > > > index aee162b83..832967b44 100644 > > > > > > --- a/rules/rauc.in > > > > > > +++ b/rules/rauc.in > > > > > > @@ -13,6 +13,7 @@ menuconfig RAUC > > > > > > select BUSYBOX_FEATURE_SEAMLESS_GZ if BUSYBOX_TAR > > > > > > select DBUS if RAUC_SERVICE > > > > > > select LIBCURL if RAUC_NETWORK > > > > > > + select LIBNL3 if RAUC_STREAMING > > > > > > select JSON_GLIB if RAUC_JSON > > > > > > select UTIL_LINUX_NG_LIBFDISK if RAUC_GPT > > > > > > select SQUASHFS_TOOLS if RUNTIME > > > > > > @@ -44,6 +45,16 @@ config RAUC_NETWORK > > > > > > Note that network is primarily designed to be used for RAUC'S casync > > > > > > capabilities, not for fetching full bundles. > > > > > > > > > > > > +config RAUC_STREAMING > > > > > > + bool > > > > > > + prompt "Enable streaming support" > > > > > > + default y > > > > > > > > > > Why 'default y'? I think most users won't need this. > > > > > > > > I am not convinced that streaming is not required for most users. I guess that > > > > being able to download bundles form HTTP directly is a use case that is more and > > > > more common. With network and streaming enabled, one can download bundles only > > > > externally or install from USB sticks etc. > > > > > > > > In Yocto we have this enabled by default, too. If it's ptxdist's philosophy to > > > > ship as little features as possible by default (i.e. focus on small size), we > > > > can also make this default n. > > > > > > The thing is, nobody changes the defaults unless they notice something is > > > not working as expected. And enabling things in PTXdist is easy. > > Indeed. > > > > How does this work anyways? If I call 'rauc install ', will this > > > use streaming implicitly or does it require an explicit option? > > No explicit option required. Streaming will be used by default. But required NBD > support to be enabled in the kernel. > > Without streaming enabled (only network enabled), the download size of RAUC is > limited by default to allow only casync bundles that do not have any image > inside (only index files). > > > > How about 'default RAUC_NETWORK'? This way those that use networking also > > > get streaming by default. > > > > Grr, kconfig does not allow that. So it'll be disabled by default. > > > > Hmmm, or maybe just use the same option? What would the consequences be? > > As up to now the use case for RAUC_NETWORK was primarily casync support, I would > assume that most of these existing users do not require/benefit from built-in > streaming. > > Thus maybe just make it 'n' then. > > Note that I have to rebase this series anyway in case the other rauc series I > sent (for pinning configure options) is applied. Not needed. It applies just fine on-top of that. No need for a resent. Btw, 'default n' is the default, so need to add that (I've removed it in one of the patches). Michael -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |