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virtio-9p/xen-9p: move 9p specific bits to core 9p code

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These bits aren't related to the transport so let's move them to the core
code.

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
This commit is contained in:
Greg Kurz 2017-05-25 10:30:13 +02:00
parent 9964e96dc9
commit 506f327582
4 changed files with 10 additions and 14 deletions
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8
hw/9pfs/9p.c
View File

@ -3446,12 +3446,16 @@ static inline bool is_read_only_op(V9fsPDU *pdu)
}
}
void pdu_submit(V9fsPDU *pdu)
void pdu_submit(V9fsPDU *pdu, P9MsgHeader *hdr)
{
Coroutine *co;
CoroutineEntry *handler;
V9fsState *s = pdu->s;
pdu->size = le32_to_cpu(hdr->size_le);
pdu->id = hdr->id;
pdu->tag = le16_to_cpu(hdr->tag_le);
if (pdu->id >= ARRAY_SIZE(pdu_co_handlers) ||
(pdu_co_handlers[pdu->id] == NULL)) {
handler = v9fs_op_not_supp;
@ -3462,6 +3466,8 @@ void pdu_submit(V9fsPDU *pdu)
if (is_ro_export(&s->ctx) && !is_read_only_op(pdu)) {
handler = v9fs_fs_ro;
}
qemu_co_queue_init(&pdu->complete);
co = qemu_coroutine_create(handler, pdu);
qemu_coroutine_enter(co);
}

2
hw/9pfs/9p.h
View File

@ -347,7 +347,7 @@ ssize_t pdu_marshal(V9fsPDU *pdu, size_t offset, const char *fmt, ...);
ssize_t pdu_unmarshal(V9fsPDU *pdu, size_t offset, const char *fmt, ...);
V9fsPDU *pdu_alloc(V9fsState *s);
void pdu_free(V9fsPDU *pdu);
void pdu_submit(V9fsPDU *pdu);
void pdu_submit(V9fsPDU *pdu, P9MsgHeader *hdr);
void v9fs_reset(V9fsState *s);
struct V9fsTransport {

8
hw/9pfs/virtio-9p-device.c
View File

@ -70,13 +70,7 @@ static void handle_9p_output(VirtIODevice *vdev, VirtQueue *vq)
goto out_free_req;
}
pdu->size = le32_to_cpu(out.size_le);
pdu->id = out.id;
pdu->tag = le16_to_cpu(out.tag_le);
qemu_co_queue_init(&pdu->complete);
pdu_submit(pdu);
pdu_submit(pdu, &out);
}
return;

6
hw/9pfs/xen-9p-backend.c
View File

@ -243,14 +243,10 @@ static int xen_9pfs_receive(Xen9pfsRing *ring)
/* cannot fail, because we only handle one request per ring at a time */
pdu = pdu_alloc(&ring->priv->state);
pdu->size = le32_to_cpu(h.size_le);
pdu->id = h.id;
pdu->tag = le32_to_cpu(h.tag_le);
ring->out_size = le32_to_cpu(h.size_le);
ring->out_cons = cons + le32_to_cpu(h.size_le);
qemu_co_queue_init(&pdu->complete);
pdu_submit(pdu);
pdu_submit(pdu, &h);
return 0;
}