1 ABI and API Deprecation
2 =======================
4 See the :doc:`guidelines document for details of the ABI policy </contributing/versioning>`.
5 API and ABI deprecation notices are to be posted here.
11 * Significant ABI changes are planned for struct rte_eth_dev to support up to
12 1024 queues per port. This change will be in release 2.2.
13 There is no backward compatibility planned from release 2.2.
14 All binaries will need to be rebuilt from release 2.2.
16 * The EAL function rte_eal_pci_close_one is deprecated because renamed to
19 * The Macros RTE_HASH_BUCKET_ENTRIES_MAX and RTE_HASH_KEY_LENGTH_MAX are
20 deprecated and will be removed with version 2.2.
22 * The function rte_jhash2 is deprecated and should be removed.
24 * The field mem_location of the rte_lpm structure is deprecated and should be
25 removed as well as the macros RTE_LPM_HEAP and RTE_LPM_MEMZONE.
27 * Significant ABI changes are planned for struct rte_mbuf, struct rte_kni_mbuf,
28 and several ``PKT_RX_`` flags will be removed, to support unified packet type
29 from release 2.1. Those changes may be enabled in the upcoming release 2.1
30 with CONFIG_RTE_NEXT_ABI.
32 * librte_malloc library has been integrated into librte_eal. The 2.1 release
33 creates a dummy/empty malloc library to fulfill binaries with dynamic linking
34 dependencies on librte_malloc.so. Such dummy library will not be created from
35 release 2.2 so binaries will need to be rebuilt.
37 * The following fields have been deprecated in rte_eth_stats:
38 imissed, ibadcrc, ibadlen, imcasts, fdirmatch, fdirmiss,
39 tx_pause_xon, rx_pause_xon, tx_pause_xoff, rx_pause_xoff
41 * API for flow director filters has been replaced by rte_eth_dev_filter_ctrl.
42 Following old API is deprecated and will be removed with version 2.2 without
43 backward compatibility.
44 Functions: rte_eth_dev_fdir_*.
45 Structures: rte_fdir_*, rte_eth_fdir.
46 Enums: rte_l4type, rte_iptype.
48 * ABI changes are planned for struct rte_eth_fdir_flow_ext in order to support
49 flow director filtering in VF. The release 2.1 does not contain these ABI
50 changes, but release 2.2 will, and no backwards compatibility is planned.
52 * ABI change is planned to extend the SCTP flow's key input from release 2.1.
53 The change may be enabled in the release 2.1 with CONFIG_RTE_NEXT_ABI.
55 * ABI changes are planned for struct rte_eth_fdir_filter and
56 rte_eth_fdir_masks in order to support new flow director modes,
57 MAC VLAN and Cloud, on x550. The MAC VLAN mode means the MAC and
58 VLAN are monitored. The Cloud mode is for VxLAN and NVGRE, and
59 the tunnel type, TNI/VNI, inner MAC and inner VLAN are monitored.
60 The release 2.2 will contain these changes without backwards compatibility.
62 * librte_kni: Functions based on port id are deprecated for a long time and
63 should be removed (rte_kni_create, rte_kni_get_port_id and rte_kni_info_get).
65 * librte_pmd_ring: The deprecated functions rte_eth_ring_pair_create and
66 rte_eth_ring_pair_attach should be removed.
68 * ABI changes are planned for struct virtio_net in order to support vhost-user
69 multiple queues feature.
70 It should be integrated in release 2.2 without backward compatibility.
72 * The scheduler hierarchy structure (rte_sched_port_hierarchy) will change to
73 allow for a larger number of subport entries.
74 The number of available traffic_classes and queues may also change.
75 The mbuf structure element for sched hierarchy will also change from a single
76 32 bit to a 64 bit structure.
78 * The scheduler statistics structure will change to allow keeping track of
81 * librte_acl: The structure rte_acl_ipv4vlan_rule is deprecated and should
82 be removed as well as the associated functions rte_acl_ipv4vlan_add_rules
83 and rte_acl_ipv4vlan_build.
85 * librte_cfgfile: In order to allow for longer names and values,
86 the value of macros CFG_NAME_LEN and CFG_NAME_VAL will be increased.
87 Most likely, the new values will be 64 and 256, respectively.
89 * librte_port: Macros to access the packet meta-data stored within the
90 packet buffer will be adjusted to cover the packet mbuf structure as well,
91 as currently they are able to access any packet buffer location except the
92 packet mbuf structure.
94 * librte_table LPM: A new parameter to hold the table name will be added to
95 the LPM table parameter structure.
97 * librte_table: New functions for table entry bulk add/delete will be added
98 to the table operations structure.
100 * librte_table hash: Key mask parameter will be added to the hash table
101 parameter structure for 8-byte key and 16-byte key extendible bucket and
104 * librte_pipeline: The prototype for the pipeline input port, output port
105 and table action handlers will be updated:
106 the pipeline parameter will be added, the packets mask parameter will be
107 either removed (for input port action handler) or made input-only.