search for: rvring

From: Erwan Yvin <erwan.yvin at stericsson.com> This driver depends on Rusty's new host virtio ring implementation, so this patch-set is based on the vringh branch in Rusty's git. with the vringh wrapper patch on top. They do not apply cleanly on top of the remoteproc virtio config patches from Sjur, but it merges fine. CAIF will use this new host virtio ring implementation. Ido,

From: Erwan Yvin <erwan.yvin at stericsson.com> This driver depends on Rusty's new host virtio ring implementation, so this patch-set is based on the vringh branch in Rusty's git. with the vringh wrapper patch on top. They do not apply cleanly on top of the remoteproc virtio config patches from Sjur, but it merges fine. CAIF will use this new host virtio ring implementation. Ido,

.../remoteproc_virtio.c @@ -41,6 +41,18 @@ static void rproc_virtio_notify(struct virtqueue *vq) rproc->ops->kick(rproc, notifyid); } +/* kick the remote processor, and let it know which vring to poke at */ +static void rproc_virtio_vringh_notify(struct vringh *vrh) +{ + struct rproc_vring *rvring = vringh_to_rvring(vrh); + struct rproc *rproc = rvring->rvdev->rproc; + int notifyid = rvring->notifyid; + + dev_dbg(&rproc->dev, "kicking vq index: %d\n", notifyid); + + rproc->ops->kick(rproc, notifyid); +} + /** * rproc_vq_interrupt() - tell remoteproc that a...

.../remoteproc_virtio.c @@ -41,6 +41,18 @@ static void rproc_virtio_notify(struct virtqueue *vq) rproc->ops->kick(rproc, notifyid); } +/* kick the remote processor, and let it know which vring to poke at */ +static void rproc_virtio_vringh_notify(struct vringh *vrh) +{ + struct rproc_vring *rvring = vringh_to_rvring(vrh); + struct rproc *rproc = rvring->rvdev->rproc; + int notifyid = rvring->notifyid; + + dev_dbg(&rproc->dev, "kicking vq index: %d\n", notifyid); + + rproc->ops->kick(rproc, notifyid); +} + /** * rproc_vq_interrupt() - tell remoteproc that a...

...g.h> #include <linux/virtio_ids.h> #include <linux/virtio_ring.h> +#include <linux/vringh.h> #include <linux/err.h> #include <linux/kref.h> #include <linux/slab.h> @@ -63,7 +64,10 @@ irqreturn_t rproc_vq_interrupt(struct rproc *rproc, int notifyid) if (!rvring || !rvring->vq) return IRQ_NONE; - return vring_interrupt(0, rvring->vq); + if (rvring->vringh && rvring->vringh_cb) + return rvring->vringh_cb(&rvring->rvdev->vdev, rvring->vringh); + else + return vring_interrupt(0, rvring->vq); } EXPORT_SYMBOL(rpro...

...g.h> #include <linux/virtio_ids.h> #include <linux/virtio_ring.h> +#include <linux/vringh.h> #include <linux/err.h> #include <linux/kref.h> #include <linux/slab.h> @@ -63,7 +64,10 @@ irqreturn_t rproc_vq_interrupt(struct rproc *rproc, int notifyid) if (!rvring || !rvring->vq) return IRQ_NONE; - return vring_interrupt(0, rvring->vq); + if (rvring->vringh && rvring->vringh_cb) + return rvring->vringh_cb(&rvring->rvdev->vdev, rvring->vringh); + else + return vring_interrupt(0, rvring->vq); } EXPORT_SYMBOL(rpro...

From: Sjur Br?ndeland <sjur.brandeland at stericsson.com> This driver depends on Rusty's new host virtio ring implementation, so this patch-set is based on the vringh branch in Rusty's git. Changes since V1: - Use the new iov helper functions, and simplify iov handling. However this triggers compile warnings, as it takes struct iov while kernel api uses struct kiov - Introduced

From: Sjur Br?ndeland <sjur.brandeland at stericsson.com> This driver depends on Rusty's new host virtio ring implementation, so this patch-set is based on the vringh branch in Rusty's git. Changes since V1: - Use the new iov helper functions, and simplify iov handling. However this triggers compile warnings, as it takes struct iov while kernel api uses struct kiov - Introduced

From: Sjur Br?ndeland <sjur.brandeland at stericsson.com> This patch-set introduces the CAIF Virtio Link layer driver. This driver depends on Rusty's new host virtio ring implementation, so this patch-set is based on the vringh branch in Rusty's git. Regards, Sjur cc: Rusty Russell <rusty at rustcorp.com.au> cc: Ohad Ben-Cohen <ohad at wizery.com> cc: David S. Miller

From: Sjur Br?ndeland <sjur.brandeland at stericsson.com> This patch-set introduces the CAIF Virtio Link layer driver. This driver depends on Rusty's new host virtio ring implementation, so this patch-set is based on the vringh branch in Rusty's git. Regards, Sjur cc: Rusty Russell <rusty at rustcorp.com.au> cc: Ohad Ben-Cohen <ohad at wizery.com> cc: David S. Miller

...gument is of type 'const char *' struct virtqueue *vring_new_virtqueue(unsigned int index, ^~~~~~~~~~~~~~~~~~~ drivers/remoteproc/remoteproc_virtio.c:106:7: error: too few arguments to function 'vring_new_virtqueue' vq = vring_new_virtqueue(id, len, rvring->align, vdev, false, addr, ^~~~~~~~~~~~~~~~~~~ In file included from drivers/remoteproc/remoteproc_virtio.c:25:0: include/linux/virtio_ring.h:93:19: note: declared here struct virtqueue *vring_new_virtqueue(unsigned int index, ^~~~~~~~~~~~~~~~~~~ driv...

...gument is of type 'const char *' struct virtqueue *vring_new_virtqueue(unsigned int index, ^~~~~~~~~~~~~~~~~~~ drivers/remoteproc/remoteproc_virtio.c:106:7: error: too few arguments to function 'vring_new_virtqueue' vq = vring_new_virtqueue(id, len, rvring->align, vdev, false, addr, ^~~~~~~~~~~~~~~~~~~ In file included from drivers/remoteproc/remoteproc_virtio.c:25:0: include/linux/virtio_ring.h:93:19: note: declared here struct virtqueue *vring_new_virtqueue(unsigned int index, ^~~~~~~~~~~~~~~~~~~ driv...

...#39; but argument is of type 'const char *' struct virtqueue *vring_new_virtqueue(unsigned int index, ^ >> drivers//remoteproc/remoteproc_virtio.c:106:7: error: too few arguments to function 'vring_new_virtqueue' vq = vring_new_virtqueue(id, len, rvring->align, vdev, false, addr, ^ In file included from drivers//remoteproc/remoteproc_virtio.c:25:0: include/linux/virtio_ring.h:93:19: note: declared here struct virtqueue *vring_new_virtqueue(unsigned int index, ^ drivers//remoteproc/remoteproc_virtio.c...

...#39; but argument is of type 'const char *' struct virtqueue *vring_new_virtqueue(unsigned int index, ^ >> drivers//remoteproc/remoteproc_virtio.c:106:7: error: too few arguments to function 'vring_new_virtqueue' vq = vring_new_virtqueue(id, len, rvring->align, vdev, false, addr, ^ In file included from drivers//remoteproc/remoteproc_virtio.c:25:0: include/linux/virtio_ring.h:93:19: note: declared here struct virtqueue *vring_new_virtqueue(unsigned int index, ^ drivers//remoteproc/remoteproc_virtio.c...

...gument is of type 'const char *' struct virtqueue *vring_new_virtqueue(unsigned int index, ^~~~~~~~~~~~~~~~~~~ drivers/remoteproc/remoteproc_virtio.c:106:7: error: too few arguments to function 'vring_new_virtqueue' vq = vring_new_virtqueue(id, len, rvring->align, vdev, false, addr, ^~~~~~~~~~~~~~~~~~~ In file included from drivers/remoteproc/remoteproc_virtio.c:25:0: include/linux/virtio_ring.h:93:19: note: declared here struct virtqueue *vring_new_virtqueue(unsigned int index, ^~~~~~~~~~~~~~~~~~~ driv...

...gument is of type 'const char *' struct virtqueue *vring_new_virtqueue(unsigned int index, ^~~~~~~~~~~~~~~~~~~ drivers/remoteproc/remoteproc_virtio.c:106:7: error: too few arguments to function 'vring_new_virtqueue' vq = vring_new_virtqueue(id, len, rvring->align, vdev, false, addr, ^~~~~~~~~~~~~~~~~~~ In file included from drivers/remoteproc/remoteproc_virtio.c:25:0: include/linux/virtio_ring.h:93:19: note: declared here struct virtqueue *vring_new_virtqueue(unsigned int index, ^~~~~~~~~~~~~~~~~~~ driv...

...proc/remoteproc_virtio.c @@ -30,7 +30,7 @@ #include "remoteproc_internal.h" /* kick the remote processor, and let it know which virtqueue to poke at */ -static void rproc_virtio_notify(struct virtqueue *vq) +static int rproc_virtio_notify(struct virtqueue *vq) { struct rproc_vring *rvring = vq->priv; struct rproc *rproc = rvring->rvdev->rproc; @@ -39,6 +39,7 @@ static void rproc_virtio_notify(struct virtqueue *vq) dev_dbg(&rproc->dev, "kicking vq index: %d\n", notifyid); rproc->ops->kick(rproc, notifyid); + return 0; } /** diff --git a/dri...

Rusty, here is just patch 1 (using bool as return value in notify API). Thanks. Heinz Graalfs (9): virtio_ring: change host notification API virtio_ring: let virtqueue_{kick()/notify()} return a bool virtio_net: verify if virtqueue_kick() succeeded virtio_test: verify if virtqueue_kick() succeeded virtio_ring: add new function virtqueue_is_broken() virtio_blk: verify if queue is

Rusty, here is just patch 1 (using bool as return value in notify API). Thanks. Heinz Graalfs (9): virtio_ring: change host notification API virtio_ring: let virtqueue_{kick()/notify()} return a bool virtio_net: verify if virtqueue_kick() succeeded virtio_test: verify if virtqueue_kick() succeeded virtio_ring: add new function virtqueue_is_broken() virtio_blk: verify if queue is

This patch-set introduces the CAIF Virtio Link layer. The purpose is to communicate with a remote processor (a modem) over shared memory. Virtio is used as the transport mechanism, and the Remoteproc framework provides configuration and management of the Virtio rings and devices. The modem and Linux host may be on the same SoC, or connected over a shared memory interface such as LLI. Zero-Copy