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xen/netback: use struct ubuf_info_msgzc

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struct ubuf_info will be changed, use ubuf_info_msgzc instead.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Pavel Begunkov 2022-09-23 17:39:02 +01:00 committed by Jakub Kicinski
parent 6eaab4dfdd
commit b63ca3e822
3 changed files with 7 additions and 6 deletions
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2
drivers/net/xen-netback/common.h
View File

@ -62,7 +62,7 @@ struct pending_tx_info {
* ubuf_to_vif is a helper which finds the struct xenvif from a pointer
* to this field.
*/
struct ubuf_info callback_struct;
struct ubuf_info_msgzc callback_struct;
};
#define XEN_NETIF_TX_RING_SIZE __CONST_RING_SIZE(xen_netif_tx, XEN_PAGE_SIZE)

4
drivers/net/xen-netback/interface.c
View File

@ -591,8 +591,8 @@ int xenvif_init_queue(struct xenvif_queue *queue)
}
for (i = 0; i < MAX_PENDING_REQS; i++) {
queue->pending_tx_info[i].callback_struct = (struct ubuf_info)
{ .callback = xenvif_zerocopy_callback,
queue->pending_tx_info[i].callback_struct = (struct ubuf_info_msgzc)
{ { .callback = xenvif_zerocopy_callback },
{ { .ctx = NULL,
.desc = i } } };
queue->grant_tx_handle[i] = NETBACK_INVALID_HANDLE;

7
drivers/net/xen-netback/netback.c
View File

@ -133,7 +133,7 @@ static inline unsigned long idx_to_kaddr(struct xenvif_queue *queue,
/* Find the containing VIF's structure from a pointer in pending_tx_info array
*/
static inline struct xenvif_queue *ubuf_to_queue(const struct ubuf_info *ubuf)
static inline struct xenvif_queue *ubuf_to_queue(const struct ubuf_info_msgzc *ubuf)
{
u16 pending_idx = ubuf->desc;
struct pending_tx_info *temp =
@ -1228,11 +1228,12 @@ static int xenvif_tx_submit(struct xenvif_queue *queue)
return work_done;
}
void xenvif_zerocopy_callback(struct sk_buff *skb, struct ubuf_info *ubuf,
void xenvif_zerocopy_callback(struct sk_buff *skb, struct ubuf_info *ubuf_base,
bool zerocopy_success)
{
unsigned long flags;
pending_ring_idx_t index;
struct ubuf_info_msgzc *ubuf = uarg_to_msgzc(ubuf_base);
struct xenvif_queue *queue = ubuf_to_queue(ubuf);
/* This is the only place where we grab this lock, to protect callbacks
@ -1241,7 +1242,7 @@ void xenvif_zerocopy_callback(struct sk_buff *skb, struct ubuf_info *ubuf,
spin_lock_irqsave(&queue->callback_lock, flags);
do {
u16 pending_idx = ubuf->desc;
ubuf = (struct ubuf_info *) ubuf->ctx;
ubuf = (struct ubuf_info_msgzc *) ubuf->ctx;
BUG_ON(queue->dealloc_prod - queue->dealloc_cons >=
MAX_PENDING_REQS);
index = pending_index(queue->dealloc_prod);