From: Cristian Marussi <cristian.marussi@arm.com> To: Peter Hilber <peter.hilber@opensynergy.com> Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, virtualization@lists.linux-foundation.org, virtio-dev@lists.oasis-open.org, sudeep.holla@arm.com, james.quinlan@broadcom.com, Jonathan.Cameron@Huawei.com, f.fainelli@gmail.com, etienne.carriere@linaro.org, vincent.guittot@linaro.org, souvik.chakravarty@arm.com, igor.skalkin@opensynergy.com, alex.bennee@linaro.org, jean-philippe@linaro.org, mikhail.golubev@opensynergy.com, anton.yakovlev@opensynergy.com, Vasyl.Vavrychuk@opensynergy.com, Andriy.Tryshnivskyy@opensynergy.com Subject: Re: [PATCH v4 14/16] firmware: arm_scmi: Add virtio transport Date: Thu, 1 Jul 2021 11:34:06 +0100 [thread overview] Message-ID: <20210701103406.GE17807@e120937-lin> (raw) In-Reply-To: <ccc64935-08fa-d1a3-fc21-227c9d05fe24@opensynergy.com> Hi, On Thu, Jul 01, 2021 at 10:43:07AM +0200, Peter Hilber wrote: > On 11.06.21 18:59, Cristian Marussi wrote: > > <snip> > > > +static struct virtio_driver virtio_scmi_driver = { > > + .driver.name = "scmi-virtio", > > + .driver.owner = THIS_MODULE, > > + .feature_table = features, > > + .feature_table_size = ARRAY_SIZE(features), > > + .id_table = id_table, > > + .probe = scmi_vio_probe, > > + .remove = scmi_vio_remove, > > +}; > > + > > It might be good to also check for the VIRTIO_F_VERSION_1 feature bit in the > optional .validate op (not yet implemented above), as some other devices do > (quoting virtio-snd in the following): > Ah, thanks for pointing that out, I'll do because indeed in my hackish emulation test-setup I forgot to emulate that bit and everything fall flat. > > /** > > * virtsnd_validate() - Validate if the device can be started. > > * @vdev: VirtIO parent device. > > * > > * Context: Any context. > > * Return: 0 on success, -EINVAL on failure. > > */ > > static int virtsnd_validate(struct virtio_device *vdev) > > { > > <snip> > > > > > if (!virtio_has_feature(vdev, VIRTIO_F_VERSION_1)) { > > dev_err(&vdev->dev, > > "device does not comply with spec version 1.x\n"); > > return -EINVAL; > > } > > > > <snip> > > > > > static struct virtio_driver virtsnd_driver = { > > .driver.name = KBUILD_MODNAME, > > .driver.owner = THIS_MODULE, > > .id_table = id_table, > > .validate = virtsnd_validate, > > (end of virtio-snd quote) Thanks, Cristian
WARNING: multiple messages have this Message-ID (diff)
From: Cristian Marussi <cristian.marussi@arm.com> To: Peter Hilber <peter.hilber@opensynergy.com> Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, virtualization@lists.linux-foundation.org, virtio-dev@lists.oasis-open.org, sudeep.holla@arm.com, james.quinlan@broadcom.com, Jonathan.Cameron@Huawei.com, f.fainelli@gmail.com, etienne.carriere@linaro.org, vincent.guittot@linaro.org, souvik.chakravarty@arm.com, igor.skalkin@opensynergy.com, alex.bennee@linaro.org, jean-philippe@linaro.org, mikhail.golubev@opensynergy.com, anton.yakovlev@opensynergy.com, Vasyl.Vavrychuk@opensynergy.com, Andriy.Tryshnivskyy@opensynergy.com Subject: Re: [PATCH v4 14/16] firmware: arm_scmi: Add virtio transport Date: Thu, 1 Jul 2021 11:34:06 +0100 [thread overview] Message-ID: <20210701103406.GE17807@e120937-lin> (raw) In-Reply-To: <ccc64935-08fa-d1a3-fc21-227c9d05fe24@opensynergy.com> Hi, On Thu, Jul 01, 2021 at 10:43:07AM +0200, Peter Hilber wrote: > On 11.06.21 18:59, Cristian Marussi wrote: > > <snip> > > > +static struct virtio_driver virtio_scmi_driver = { > > + .driver.name = "scmi-virtio", > > + .driver.owner = THIS_MODULE, > > + .feature_table = features, > > + .feature_table_size = ARRAY_SIZE(features), > > + .id_table = id_table, > > + .probe = scmi_vio_probe, > > + .remove = scmi_vio_remove, > > +}; > > + > > It might be good to also check for the VIRTIO_F_VERSION_1 feature bit in the > optional .validate op (not yet implemented above), as some other devices do > (quoting virtio-snd in the following): > Ah, thanks for pointing that out, I'll do because indeed in my hackish emulation test-setup I forgot to emulate that bit and everything fall flat. > > /** > > * virtsnd_validate() - Validate if the device can be started. > > * @vdev: VirtIO parent device. > > * > > * Context: Any context. > > * Return: 0 on success, -EINVAL on failure. > > */ > > static int virtsnd_validate(struct virtio_device *vdev) > > { > > <snip> > > > > > if (!virtio_has_feature(vdev, VIRTIO_F_VERSION_1)) { > > dev_err(&vdev->dev, > > "device does not comply with spec version 1.x\n"); > > return -EINVAL; > > } > > > > <snip> > > > > > static struct virtio_driver virtsnd_driver = { > > .driver.name = KBUILD_MODNAME, > > .driver.owner = THIS_MODULE, > > .id_table = id_table, > > .validate = virtsnd_validate, > > (end of virtio-snd quote) Thanks, Cristian _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-07-01 10:34 UTC|newest] Thread overview: 97+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-06-11 16:59 [PATCH v4 00/16] Introduce SCMI VirtIO transport Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 01/16] firmware: arm_scmi: Fix max pending messages boundary check Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-07-01 8:42 ` Peter Hilber 2021-07-01 8:42 ` [virtio-dev] " Peter Hilber 2021-07-01 8:42 ` Peter Hilber 2021-07-01 10:04 ` Cristian Marussi 2021-07-01 10:04 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 02/16] firmware: arm_scmi: Add support for type handling in common functions Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 03/16] firmware: arm_scmi: Add transport optional init/exit support Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-14 13:29 ` Jonathan Cameron 2021-06-14 13:29 ` Jonathan Cameron 2021-06-16 9:04 ` Cristian Marussi 2021-06-16 9:04 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 04/16] firmware: arm_scmi: Introduce monotonically increasing tokens Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-14 13:53 ` Jonathan Cameron 2021-06-14 13:53 ` Jonathan Cameron 2021-06-16 9:11 ` Cristian Marussi 2021-06-16 9:11 ` Cristian Marussi 2021-07-01 8:42 ` Peter Hilber 2021-07-01 8:42 ` [virtio-dev] " Peter Hilber 2021-07-01 8:42 ` Peter Hilber 2021-07-01 10:16 ` Cristian Marussi 2021-07-01 10:16 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 05/16] firmware: arm_scmi: Introduce delegated xfers support Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-07-01 8:42 ` Peter Hilber 2021-07-01 8:42 ` [virtio-dev] " Peter Hilber 2021-07-01 8:42 ` Peter Hilber 2021-07-01 10:24 ` Cristian Marussi 2021-07-01 10:24 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 06/16] firmware: arm_scmi, smccc, mailbox: Make shmem based transports optional Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-07-01 8:42 ` Peter Hilber 2021-07-01 8:42 ` [virtio-dev] " Peter Hilber 2021-07-01 8:42 ` Peter Hilber 2021-07-01 10:27 ` Cristian Marussi 2021-07-01 10:27 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 07/16] firmware: arm_scmi: Add op to override max message # Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-14 14:04 ` Jonathan Cameron 2021-06-14 14:04 ` Jonathan Cameron 2021-06-16 9:13 ` Cristian Marussi 2021-06-16 9:13 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 08/16] [RFC][REWORK] " Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 09/16] firmware: arm_scmi: Add optional link_supplier() transport op Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 10/16] firmware: arm_scmi: Add per-device transport private info Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 11/16] firmware: arm_scmi: Add is_scmi_protocol_device() Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 12/16] firmware: arm_scmi: Add message passing abstractions for transports Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-14 14:10 ` Jonathan Cameron 2021-06-14 14:10 ` Jonathan Cameron 2021-06-16 9:14 ` Cristian Marussi 2021-06-16 9:14 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 13/16] dt-bindings: arm: Add virtio transport for SCMI Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-24 19:22 ` Rob Herring 2021-06-24 19:22 ` Rob Herring 2021-06-24 19:22 ` Rob Herring 2021-07-01 8:43 ` Peter Hilber 2021-07-01 8:43 ` [virtio-dev] " Peter Hilber 2021-07-01 8:43 ` Peter Hilber 2021-07-01 10:31 ` Cristian Marussi 2021-07-01 10:31 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 14/16] firmware: arm_scmi: Add virtio transport Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-14 14:23 ` Jonathan Cameron 2021-06-14 14:23 ` Jonathan Cameron 2021-06-16 10:18 ` Cristian Marussi 2021-06-16 10:18 ` Cristian Marussi 2021-07-01 8:43 ` Peter Hilber 2021-07-01 8:43 ` [virtio-dev] " Peter Hilber 2021-07-01 8:43 ` Peter Hilber 2021-07-01 10:34 ` Cristian Marussi [this message] 2021-07-01 10:34 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 15/16] [RFC][REWORK] firmware: arm_scmi: make virtio-scmi use delegated xfers Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-07-01 8:43 ` Peter Hilber 2021-07-01 8:43 ` [virtio-dev] " Peter Hilber 2021-07-01 8:43 ` Peter Hilber 2021-07-01 11:26 ` Cristian Marussi 2021-07-01 11:26 ` Cristian Marussi 2021-06-11 16:59 ` [PATCH v4 16/16] firmware: arm_scmi: Add polling mode to virtio transport Cristian Marussi 2021-06-11 16:59 ` Cristian Marussi 2021-06-14 11:43 ` [PATCH v4 00/16] Introduce SCMI VirtIO transport Christoph Hellwig 2021-06-14 11:43 ` Christoph Hellwig 2021-06-14 11:43 ` Christoph Hellwig 2021-06-14 14:03 ` Cristian Marussi 2021-06-14 14:03 ` Cristian Marussi
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