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X-MS-Exchange-CrossTenant-originalarrivaltime: 07 Dec 2023 08:26:28.6802 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 70e1fb47-1155-421d-87fc-2e58f638b6e0 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: eIKC/14cEX8HBaL/NIMDs+j/mVfNxHYHgTWYKJFUkC8s/jyFEbwkDyrFS40R3XpEAYaEF4BOxYkqEla+cMNkZg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV3PR18MB5722 X-Proofpoint-GUID: o17MJZr8Dofm3SLxwfjyNKhvFMhGM8kM X-Proofpoint-ORIG-GUID: o17MJZr8Dofm3SLxwfjyNKhvFMhGM8kM X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-07_06,2023-12-06_01,2023-05-22_02 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org > -----Original Message----- > From: Rakesh Kudurumalla > Sent: Tuesday, December 5, 2023 2:57 PM > To: Nithin Kumar Dabilpuram ; Pavan > Nikhilesh Bhagavatula > Cc: dev@dpdk.org; Jerin Jacob Kollanukkaran ; > Rakesh Kudurumalla > Subject: [EXT] [PATCH v4 1/3] node: support to add next node to ethdev Rx > node >=20 > External Email >=20 > ---------------------------------------------------------------------- > By default all packets received on ethdev_rx node is forwarded to pkt_cls > node.This patch provides library support to add a new node as next node t= o > ethdev_rx node and forward packet to new node from rx node. >=20 > Signed-off-by: Rakesh Kudurumalla > --- > v4: Resolve compilation issues >=20 > lib/node/ethdev_ctrl.c | 45 > +++++++++++++++++++++++++++++++++++++ > lib/node/rte_node_eth_api.h | 19 ++++++++++++++++ > lib/node/version.map | 1 + > 3 files changed, 65 insertions(+) >=20 > diff --git a/lib/node/ethdev_ctrl.c b/lib/node/ethdev_ctrl.c index > d564b80e37..0faf4c19f2 100644 > --- a/lib/node/ethdev_ctrl.c > +++ b/lib/node/ethdev_ctrl.c > @@ -3,6 +3,7 @@ > */ >=20 > #include > +#include >=20 > #include > #include > @@ -129,3 +130,47 @@ rte_node_eth_config(struct > rte_node_ethdev_config *conf, uint16_t nb_confs, > ctrl.nb_graphs =3D nb_graphs; > return 0; > } > + > +int > +rte_node_ethdev_rx_next_update(rte_node_t id, const char *edge_name) { > + struct ethdev_rx_node_main *data; > + ethdev_rx_node_elem_t *elem; > + char **next_nodes; > + int rc =3D -EINVAL; > + uint32_t count; > + uint16_t i =3D 0; > + > + if (edge_name =3D=3D NULL) > + return rc; > + Better to use goto scheme.=20 > + count =3D rte_node_edge_get(id, NULL); > + > + if (count =3D=3D RTE_NODE_ID_INVALID) > + return rc; > + > + next_nodes =3D malloc(count); > + if (next_nodes =3D=3D NULL) > + return -ENOMEM; > + > + count =3D rte_node_edge_get(id, next_nodes); > + Here it looks like that loop can misbehave for invalid edge_name. I might b= e wrong. Consider the case.=20 1. edge_name =3D "test_name" 2. number of elements in next_nodes is 2 and no element is matching with ed= ge_name. In this case, loop might misbehave as there will not be any NULL entry.=20 Did you try a negative test case on this API ? > + while (next_nodes[i] !=3D NULL) { > + if (strcmp(edge_name, next_nodes[i]) =3D=3D 0) { > + data =3D ethdev_rx_get_node_data_get(); > + elem =3D data->head; > + while (elem->next !=3D data->head) { > + if (elem->nid =3D=3D id) { > + elem->ctx.cls_next =3D i; > + rc =3D 0; > + goto exit; > + } > + elem =3D elem->next; > + } > + } > + i++; > + } > +exit: > + free(next_nodes); > + return rc; > +} > diff --git a/lib/node/rte_node_eth_api.h b/lib/node/rte_node_eth_api.h in= dex > eaae50772d..b082a5bec1 100644 > --- a/lib/node/rte_node_eth_api.h > +++ b/lib/node/rte_node_eth_api.h > @@ -23,6 +23,7 @@ extern "C" { > #include > #include > #include > +#include >=20 > /** > * Port config for ethdev_rx and ethdev_tx node. > @@ -57,6 +58,24 @@ struct rte_node_ethdev_config { > */ > int rte_node_eth_config(struct rte_node_ethdev_config *cfg, > uint16_t cnt, uint16_t nb_graphs); > + > +/** > + * Update ethdev rx next node. > + * > + * @param id > + * Node id whose edge is to be updated. > + * @param edge_name > + * Name of the next node. > + * > + * @return > + * RTE_EDGE_ID_INVALID if id is invalid I think, This is not needed now. Below error code handles for invalid ID to= o.=20 > + * ENINVAL: Either of input parameters are invalid > + * ENOMEM: If memory allocation failed > + * 0 on successful initialization. > + */ > +__rte_experimental > +int rte_node_ethdev_rx_next_update(rte_node_t id, const char > +*edge_name); > + > #ifdef __cplusplus > } > #endif > diff --git a/lib/node/version.map b/lib/node/version.map index > 99ffcdd414..07abc3a79f 100644 > --- a/lib/node/version.map > +++ b/lib/node/version.map > @@ -16,6 +16,7 @@ EXPERIMENTAL { > rte_node_ip6_route_add; >=20 > # added in 23.11 > + rte_node_ethdev_rx_next_update; > rte_node_ip4_reassembly_configure; > rte_node_udp4_dst_port_add; > rte_node_udp4_usr_node_add; > -- > 2.25.1