xref: /dpdk/drivers/net/nfb/nfb_rx.c (revision 76da9834ebb6e43e005bd5895ff4568d0e7be78f)
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2019 Cesnet
3  * Copyright(c) 2019 Netcope Technologies, a.s. <info@netcope.com>
4  * All rights reserved.
5  */
6 
7 #include <rte_kvargs.h>
8 
9 #include "nfb.h"
10 #include "nfb_rx.h"
11 
12 uint64_t nfb_timestamp_rx_dynflag;
13 int nfb_timestamp_dynfield_offset = -1;
14 
15 int
16 nfb_eth_rx_queue_start(struct rte_eth_dev *dev, uint16_t rxq_id)
17 {
18 	struct ndp_rx_queue *rxq = dev->data->rx_queues[rxq_id];
19 	int ret;
20 
21 	if (rxq->queue == NULL) {
22 		NFB_LOG(ERR, "RX NDP queue is NULL");
23 		return -EINVAL;
24 	}
25 
26 	ret = ndp_queue_start(rxq->queue);
27 	if (ret != 0)
28 		goto err;
29 	dev->data->rx_queue_state[rxq_id] = RTE_ETH_QUEUE_STATE_STARTED;
30 	return 0;
31 
32 err:
33 	return -EINVAL;
34 }
35 
36 int
37 nfb_eth_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rxq_id)
38 {
39 	struct ndp_rx_queue *rxq = dev->data->rx_queues[rxq_id];
40 	int ret;
41 
42 	if (rxq->queue == NULL) {
43 		NFB_LOG(ERR, "RX NDP queue is NULL");
44 		return -EINVAL;
45 	}
46 
47 	ret = ndp_queue_stop(rxq->queue);
48 	if (ret != 0)
49 		return -EINVAL;
50 
51 	dev->data->rx_queue_state[rxq_id] = RTE_ETH_QUEUE_STATE_STOPPED;
52 	return 0;
53 }
54 
55 int
56 nfb_eth_rx_queue_setup(struct rte_eth_dev *dev,
57 		uint16_t rx_queue_id,
58 		uint16_t nb_rx_desc __rte_unused,
59 		unsigned int socket_id,
60 		const struct rte_eth_rxconf *rx_conf __rte_unused,
61 		struct rte_mempool *mb_pool)
62 {
63 	struct pmd_internals *internals = dev->data->dev_private;
64 
65 	struct ndp_rx_queue *rxq;
66 	int ret;
67 
68 	rxq = rte_zmalloc_socket("ndp rx queue",
69 			sizeof(struct ndp_rx_queue),
70 			RTE_CACHE_LINE_SIZE, socket_id);
71 
72 	if (rxq == NULL) {
73 		NFB_LOG(ERR, "rte_zmalloc_socket() failed for rx queue id %" PRIu16,
74 			rx_queue_id);
75 		return -ENOMEM;
76 	}
77 
78 	rxq->flags = 0;
79 
80 	ret = nfb_eth_rx_queue_init(internals->nfb,
81 		rx_queue_id,
82 		dev->data->port_id,
83 		mb_pool,
84 		rxq);
85 
86 	if (ret == 0)
87 		dev->data->rx_queues[rx_queue_id] = rxq;
88 	else
89 		rte_free(rxq);
90 
91 	return ret;
92 }
93 
94 int
95 nfb_eth_rx_queue_init(struct nfb_device *nfb,
96 		uint16_t rx_queue_id,
97 		uint16_t port_id,
98 		struct rte_mempool *mb_pool,
99 		struct ndp_rx_queue *rxq)
100 {
101 	const struct rte_pktmbuf_pool_private *mbp_priv =
102 		rte_mempool_get_priv(mb_pool);
103 
104 	if (nfb == NULL)
105 		return -EINVAL;
106 
107 	rxq->queue = ndp_open_rx_queue(nfb, rx_queue_id);
108 	if (rxq->queue == NULL)
109 		return -EINVAL;
110 
111 	rxq->nfb = nfb;
112 	rxq->rx_queue_id = rx_queue_id;
113 	rxq->in_port = port_id;
114 	rxq->mb_pool = mb_pool;
115 	rxq->buf_size = (uint16_t)(mbp_priv->mbuf_data_room_size -
116 		RTE_PKTMBUF_HEADROOM);
117 
118 	rxq->rx_pkts = 0;
119 	rxq->rx_bytes = 0;
120 	rxq->err_pkts = 0;
121 
122 	return 0;
123 }
124 
125 void
126 nfb_eth_rx_queue_release(struct rte_eth_dev *dev, uint16_t qid)
127 {
128 	struct ndp_rx_queue *rxq = dev->data->rx_queues[qid];
129 
130 	if (rxq->queue != NULL) {
131 		ndp_close_rx_queue(rxq->queue);
132 		rxq->queue = NULL;
133 		rte_free(rxq);
134 	}
135 }
136