Add new fields to the odp_packet_hdr_t used for support of zero-copy references. Also added are the offsets needed to access them from inlined functions.
Signed-off-by: Bill Fischofer <[email protected]> --- platform/linux-generic/include/odp/api/plat/packet_types.h | 8 ++++++++ platform/linux-generic/include/odp_packet_internal.h | 9 ++++++++- platform/linux-generic/odp_packet.c | 4 ++++ 3 files changed, 20 insertions(+), 1 deletion(-) diff --git a/platform/linux-generic/include/odp/api/plat/packet_types.h b/platform/linux-generic/include/odp/api/plat/packet_types.h index b8f665d..16e4b46 100644 --- a/platform/linux-generic/include/odp/api/plat/packet_types.h +++ b/platform/linux-generic/include/odp/api/plat/packet_types.h @@ -70,6 +70,14 @@ typedef struct _odp_packet_inline_offset_t { /** @internal field offset */ size_t tailroom; /** @internal field offset */ + size_t unshared_len; + /** @internal field offset */ + size_t ref_hdr; + /** @internal field offset */ + size_t ref_offset; + /** *internal field offset */ + size_t ref_len; + /** @internal field offset */ size_t pool; /** @internal field offset */ size_t input; diff --git a/platform/linux-generic/include/odp_packet_internal.h b/platform/linux-generic/include/odp_packet_internal.h index 589e204..31d46df 100644 --- a/platform/linux-generic/include/odp_packet_internal.h +++ b/platform/linux-generic/include/odp_packet_internal.h @@ -119,7 +119,7 @@ typedef struct { * packet_init(). Because of this any new fields added must be reviewed for * initialization requirements. */ -typedef struct { +typedef struct odp_packet_hdr_t { /* common buffer header */ odp_buffer_hdr_t buf_hdr; @@ -135,6 +135,13 @@ typedef struct { uint32_t headroom; uint32_t tailroom; + /* Fields used to support packet references */ + uint32_t unshared_len; + struct odp_packet_hdr_t *ref_hdr; + uint32_t ref_offset; + uint32_t ref_len; + odp_atomic_u32_t ref_count; + /* * Members below are not initialized by packet_init() */ diff --git a/platform/linux-generic/odp_packet.c b/platform/linux-generic/odp_packet.c index d0f7633..067d0fc 100644 --- a/platform/linux-generic/odp_packet.c +++ b/platform/linux-generic/odp_packet.c @@ -31,6 +31,10 @@ const _odp_packet_inline_offset_t _odp_packet_inline ODP_ALIGNED_CACHE = { .frame_len = offsetof(odp_packet_hdr_t, frame_len), .headroom = offsetof(odp_packet_hdr_t, headroom), .tailroom = offsetof(odp_packet_hdr_t, tailroom), + .unshared_len = offsetof(odp_packet_hdr_t, unshared_len), + .ref_hdr = offsetof(odp_packet_hdr_t, ref_hdr), + .ref_offset = offsetof(odp_packet_hdr_t, ref_offset), + .ref_len = offsetof(odp_packet_hdr_t, ref_len), .pool = offsetof(odp_packet_hdr_t, buf_hdr.pool_hdl), .input = offsetof(odp_packet_hdr_t, input), .segcount = offsetof(odp_packet_hdr_t, buf_hdr.segcount), -- 2.5.0
