diff options
Diffstat (limited to 'net/core/page_pool_user.c')
| -rw-r--r-- | net/core/page_pool_user.c | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/net/core/page_pool_user.c b/net/core/page_pool_user.c index 3a3277ba167b..48335766c1bf 100644 --- a/net/core/page_pool_user.c +++ b/net/core/page_pool_user.c @@ -4,10 +4,12 @@ #include <linux/netdevice.h> #include <linux/xarray.h> #include <net/net_debug.h> -#include <net/page_pool/types.h> +#include <net/netdev_rx_queue.h> #include <net/page_pool/helpers.h> +#include <net/page_pool/types.h> #include <net/sock.h> +#include "devmem.h" #include "page_pool_priv.h" #include "netdev-genl-gen.h" @@ -212,6 +214,7 @@ static int page_pool_nl_fill(struct sk_buff *rsp, const struct page_pool *pool, const struct genl_info *info) { + struct net_devmem_dmabuf_binding *binding = pool->mp_priv; size_t inflight, refsz; void *hdr; @@ -241,6 +244,9 @@ page_pool_nl_fill(struct sk_buff *rsp, const struct page_pool *pool, pool->user.detach_time)) goto err_cancel; + if (binding && nla_put_u32(rsp, NETDEV_A_PAGE_POOL_DMABUF, binding->id)) + goto err_cancel; + genlmsg_end(rsp, hdr); return 0; @@ -344,6 +350,30 @@ void page_pool_unlist(struct page_pool *pool) mutex_unlock(&page_pools_lock); } +int page_pool_check_memory_provider(struct net_device *dev, + struct netdev_rx_queue *rxq) +{ + struct net_devmem_dmabuf_binding *binding = rxq->mp_params.mp_priv; + struct page_pool *pool; + struct hlist_node *n; + + if (!binding) + return 0; + + mutex_lock(&page_pools_lock); + hlist_for_each_entry_safe(pool, n, &dev->page_pools, user.list) { + if (pool->mp_priv != binding) + continue; + + if (pool->slow.queue_idx == get_netdev_rx_queue_index(rxq)) { + mutex_unlock(&page_pools_lock); + return 0; + } + } + mutex_unlock(&page_pools_lock); + return -ENODATA; +} + static void page_pool_unreg_netdev_wipe(struct net_device *netdev) { struct page_pool *pool; |