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authorDamjan Marion <damarion@cisco.com>2021-12-08 13:48:37 +0100
committerOle Tr�an <otroan@employees.org>2021-12-22 14:53:47 +0000
commit657936f665c18441bddcc2524bb3ad3dfe0e20bc (patch)
tree5bc34b648581228d6904bbb0a58540d0e5b5cd7f /src/plugins/memif/private.h
parent4926cdd1bf27370ab9b254c9a9733bec0dc30896 (diff)
memif: refactor descriptor handling in the input node
Type: improvement Change-Id: I06130447b4e6f4726c4f5bffbe606385c45b8bd4 Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/plugins/memif/private.h')
-rw-r--r--src/plugins/memif/private.h37
1 files changed, 34 insertions, 3 deletions
diff --git a/src/plugins/memif/private.h b/src/plugins/memif/private.h
index fec8506c023..0e4ca4af9d0 100644
--- a/src/plugins/memif/private.h
+++ b/src/plugins/memif/private.h
@@ -211,7 +211,7 @@ typedef struct
typedef struct
{
- u32 packet_len;
+ u16 packet_len;
u16 first_buffer_vec_index;
} memif_packet_op_t;
@@ -226,14 +226,45 @@ typedef struct
#define MEMIF_RX_VECTOR_SZ VLIB_FRAME_SIZE
+typedef enum
+{
+ MEMIF_DESC_STATUS_OK = 0,
+ MEMIF_DESC_STATUS_ERR_BAD_REGION,
+ MEMIF_DESC_STATUS_ERR_REGION_OVERRUN,
+ MEMIF_DESC_STATUS_ERR_DATA_TOO_BIG,
+ MEMIF_DESC_STATUS_ERR_ZERO_LENGTH
+} __clib_packed memif_desc_status_err_code_t;
+
+typedef union
+{
+ struct
+ {
+ u8 next : 1;
+ u8 err : 1;
+ u8 reserved : 2;
+ memif_desc_status_err_code_t err_code : 4;
+ };
+ u8 as_u8;
+} memif_desc_status_t;
+
+STATIC_ASSERT_SIZEOF (memif_desc_status_t, 1);
+
typedef struct
{
CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
-
+ u16 n_packets;
+ u16 max_desc_len;
+ u32 n_rx_bytes;
+ u8 xor_status;
/* copy vector */
- memif_packet_op_t packet_ops[MEMIF_RX_VECTOR_SZ];
memif_copy_op_t *copy_ops;
u32 *buffers;
+ memif_packet_op_t packet_ops[MEMIF_RX_VECTOR_SZ];
+
+ /* temp storage for compressed descriptors */
+ void **desc_data;
+ u16 *desc_len;
+ memif_desc_status_t *desc_status;
/* buffer template */
vlib_buffer_t buffer_template;