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| author | Alexander Lobakin <aleksander.lobakin@intel.com> | 2025-06-12 19:02:20 +0300 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2025-06-16 21:40:14 +0300 |
| commit | 35c64b6500ef7308155bf0dc556c646e4d7b0fd3 (patch) | |
| tree | 47cd1ca1153e7fa9ac2a48e61017e797d1618983 /include | |
| parent | 6ad5ff6e7282d1252364cc08af88260ef0ec4cda (diff) | |
| download | linux-35c64b6500ef7308155bf0dc556c646e4d7b0fd3.tar.xz | |
libeth: support native XDP and register memory model
Expand libeth's Page Pool functionality by adding native XDP support.
This means picking the appropriate headroom and DMA direction.
Also, register all the created &page_pools as XDP memory models.
A driver then can call xdp_rxq_info_attach_page_pool() when registering
its RxQ info.
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/libeth/rx.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/net/libeth/rx.h b/include/net/libeth/rx.h index 7d5dc58984b1..5d991404845e 100644 --- a/include/net/libeth/rx.h +++ b/include/net/libeth/rx.h @@ -13,8 +13,10 @@ /* Space reserved in front of each frame */ #define LIBETH_SKB_HEADROOM (NET_SKB_PAD + NET_IP_ALIGN) +#define LIBETH_XDP_HEADROOM (ALIGN(XDP_PACKET_HEADROOM, NET_SKB_PAD) + \ + NET_IP_ALIGN) /* Maximum headroom for worst-case calculations */ -#define LIBETH_MAX_HEADROOM LIBETH_SKB_HEADROOM +#define LIBETH_MAX_HEADROOM LIBETH_XDP_HEADROOM /* Link layer / L2 overhead: Ethernet, 2 VLAN tags (C + S), FCS */ #define LIBETH_RX_LL_LEN (ETH_HLEN + 2 * VLAN_HLEN + ETH_FCS_LEN) /* Maximum supported L2-L4 header length */ @@ -66,6 +68,7 @@ enum libeth_fqe_type { * @count: number of descriptors/buffers the queue has * @type: type of the buffers this queue has * @hsplit: flag whether header split is enabled + * @xdp: flag indicating whether XDP is enabled * @buf_len: HW-writeable length per each buffer * @nid: ID of the closest NUMA node with memory */ @@ -81,6 +84,7 @@ struct libeth_fq { /* Cold fields */ enum libeth_fqe_type type:2; bool hsplit:1; + bool xdp:1; u32 buf_len; int nid; |