+/** This structure is used by driver to store information required
+ * to free the mbuff when the packet has been fetched by Octeon.
+ * Bytes offset below assume worst-case of a 64-bit system.
+ */
+struct lio_buf_free_info {
+ /** Bytes 1-8. Pointer to network device private structure. */
+ struct lio_device *lio_dev;
+
+ /** Bytes 9-16. Pointer to mbuff. */
+ struct rte_mbuf *mbuf;
+
+ /** Bytes 17-24. Pointer to gather list. */
+ struct lio_gather *g;
+
+ /** Bytes 25-32. Physical address of mbuf->data or gather list. */
+ uint64_t dptr;
+
+ /** Bytes 33-47. Piggybacked soft command, if any */
+ struct lio_soft_command *sc;
+
+ /** Bytes 48-63. iq no */
+ uint64_t iq_no;
+};
+
+/* The Scatter-Gather List Entry. The scatter or gather component used with
+ * input instruction has this format.
+ */
+struct lio_sg_entry {
+ /** The first 64 bit gives the size of data in each dptr. */
+ union {
+ uint16_t size[4];
+ uint64_t size64;
+ } u;
+
+ /** The 4 dptr pointers for this entry. */
+ uint64_t ptr[4];
+};
+
+#define LIO_SG_ENTRY_SIZE (sizeof(struct lio_sg_entry))
+
+/** Structure of a node in list of gather components maintained by
+ * driver for each network device.
+ */
+struct lio_gather {
+ /** List manipulation. Next and prev pointers. */
+ struct lio_stailq_node list;
+
+ /** Size of the gather component at sg in bytes. */
+ int sg_size;
+
+ /** Number of bytes that sg was adjusted to make it 8B-aligned. */
+ int adjust;
+
+ /** Gather component that can accommodate max sized fragment list
+ * received from the IP layer.
+ */
+ struct lio_sg_entry *sg;
+};
+
+struct lio_rss_ctx {
+ uint16_t hash_key_size;
+ uint8_t hash_key[LIO_RSS_MAX_KEY_SZ];
+ /* Ideally a factor of number of queues */
+ uint8_t itable[LIO_RSS_MAX_TABLE_SZ];
+ uint8_t itable_size;
+ uint8_t ip;
+ uint8_t tcp_hash;
+ uint8_t ipv6;
+ uint8_t ipv6_tcp_hash;
+ uint8_t ipv6_ex;
+ uint8_t ipv6_tcp_ex_hash;
+ uint8_t hash_disable;
+};
+