1 /* SPDX-License-Identifier: BSD-3-Clause
9 #include "rte_ethdev.h"
10 #include "rte_malloc.h"
11 #include "rte_memzone.h"
13 #include "base/enetc_hw.h"
15 #include "enetc_logs.h"
17 #define ENETC_RXBD_BUNDLE 8 /* Number of BDs to update at once */
20 enetc_clean_tx_ring(struct enetc_bdr *tx_ring)
23 struct enetc_swbd *tx_swbd;
26 i = tx_ring->next_to_clean;
27 tx_swbd = &tx_ring->q_swbd[i];
28 while ((int)(enetc_rd_reg(tx_ring->tcisr) &
29 ENETC_TBCISR_IDX_MASK) != i) {
30 rte_pktmbuf_free(tx_swbd->buffer_addr);
31 tx_swbd->buffer_addr = NULL;
34 if (unlikely(i == tx_ring->bd_count)) {
36 tx_swbd = &tx_ring->q_swbd[0];
42 tx_ring->next_to_clean = i;
47 enetc_xmit_pkts(void *tx_queue,
48 struct rte_mbuf **tx_pkts,
51 struct enetc_swbd *tx_swbd;
53 struct enetc_tx_bd *txbd;
54 struct enetc_bdr *tx_ring = (struct enetc_bdr *)tx_queue;
56 i = tx_ring->next_to_use;
59 enetc_clean_tx_ring(tx_ring);
60 tx_ring->q_swbd[i].buffer_addr = tx_pkts[start];
61 txbd = ENETC_TXBD(*tx_ring, i);
62 tx_swbd = &tx_ring->q_swbd[i];
63 txbd->frm_len = tx_pkts[start]->pkt_len;
64 txbd->buf_len = txbd->frm_len;
65 txbd->flags = rte_cpu_to_le_16(ENETC_TXBD_FLAGS_F);
66 txbd->addr = (uint64_t)(uintptr_t)
67 rte_cpu_to_le_64((size_t)tx_swbd->buffer_addr->buf_addr +
68 tx_swbd->buffer_addr->data_off);
71 if (unlikely(i == tx_ring->bd_count))
75 tx_ring->next_to_use = i;
76 enetc_wr_reg(tx_ring->tcir, i);
81 enetc_refill_rx_ring(struct enetc_bdr *rx_ring, const int buff_cnt)
83 struct enetc_swbd *rx_swbd;
84 union enetc_rx_bd *rxbd;
87 i = rx_ring->next_to_use;
88 rx_swbd = &rx_ring->q_swbd[i];
89 rxbd = ENETC_RXBD(*rx_ring, i);
90 for (j = 0; j < buff_cnt; j++) {
91 rx_swbd->buffer_addr =
92 rte_cpu_to_le_64(rte_mbuf_raw_alloc(rx_ring->mb_pool));
93 rxbd->w.addr = (uint64_t)(uintptr_t)
94 rx_swbd->buffer_addr->buf_addr +
95 rx_swbd->buffer_addr->data_off;
96 /* clear 'R" as well */
101 if (unlikely(i == rx_ring->bd_count)) {
103 rxbd = ENETC_RXBD(*rx_ring, 0);
104 rx_swbd = &rx_ring->q_swbd[i];
109 rx_ring->next_to_alloc = i;
110 rx_ring->next_to_use = i;
111 enetc_wr_reg(rx_ring->rcir, i);
118 static inline void __attribute__((hot))
119 enetc_dev_rx_parse(struct rte_mbuf *m, uint16_t parse_results)
121 ENETC_PMD_DP_DEBUG("parse summary = 0x%x ", parse_results);
123 m->packet_type = RTE_PTYPE_UNKNOWN;
124 switch (parse_results) {
125 case ENETC_PKT_TYPE_ETHER:
126 m->packet_type = RTE_PTYPE_L2_ETHER;
128 case ENETC_PKT_TYPE_IPV4:
129 m->packet_type = RTE_PTYPE_L2_ETHER |
132 case ENETC_PKT_TYPE_IPV6:
133 m->packet_type = RTE_PTYPE_L2_ETHER |
136 case ENETC_PKT_TYPE_IPV4_TCP:
137 m->packet_type = RTE_PTYPE_L2_ETHER |
141 case ENETC_PKT_TYPE_IPV6_TCP:
142 m->packet_type = RTE_PTYPE_L2_ETHER |
146 case ENETC_PKT_TYPE_IPV4_UDP:
147 m->packet_type = RTE_PTYPE_L2_ETHER |
151 case ENETC_PKT_TYPE_IPV6_UDP:
152 m->packet_type = RTE_PTYPE_L2_ETHER |
156 case ENETC_PKT_TYPE_IPV4_SCTP:
157 m->packet_type = RTE_PTYPE_L2_ETHER |
161 case ENETC_PKT_TYPE_IPV6_SCTP:
162 m->packet_type = RTE_PTYPE_L2_ETHER |
166 case ENETC_PKT_TYPE_IPV4_ICMP:
167 m->packet_type = RTE_PTYPE_L2_ETHER |
171 case ENETC_PKT_TYPE_IPV6_ICMP:
172 m->packet_type = RTE_PTYPE_L2_ETHER |
176 /* More switch cases can be added */
178 m->packet_type = RTE_PTYPE_UNKNOWN;
183 enetc_clean_rx_ring(struct enetc_bdr *rx_ring,
184 struct rte_mbuf **rx_pkts,
189 struct enetc_swbd *rx_swbd;
191 cleaned_cnt = enetc_bd_unused(rx_ring);
192 /* next descriptor to process */
193 i = rx_ring->next_to_clean;
194 rx_swbd = &rx_ring->q_swbd[i];
195 while (likely(rx_frm_cnt < work_limit)) {
196 union enetc_rx_bd *rxbd;
199 if (cleaned_cnt >= ENETC_RXBD_BUNDLE) {
200 int count = enetc_refill_rx_ring(rx_ring, cleaned_cnt);
202 cleaned_cnt -= count;
205 rxbd = ENETC_RXBD(*rx_ring, i);
206 bd_status = rte_le_to_cpu_32(rxbd->r.lstatus);
210 rx_swbd->buffer_addr->pkt_len = rxbd->r.buf_len;
211 rx_swbd->buffer_addr->data_len = rxbd->r.buf_len;
212 rx_swbd->buffer_addr->hash.rss = rxbd->r.rss_hash;
213 rx_swbd->buffer_addr->ol_flags = 0;
214 enetc_dev_rx_parse(rx_swbd->buffer_addr,
215 rxbd->r.parse_summary);
216 rx_pkts[rx_frm_cnt] = rx_swbd->buffer_addr;
220 if (unlikely(i == rx_ring->bd_count)) {
222 rx_swbd = &rx_ring->q_swbd[i];
225 rx_ring->next_to_clean = i;
233 enetc_recv_pkts(void *rxq, struct rte_mbuf **rx_pkts,
236 struct enetc_bdr *rx_ring = (struct enetc_bdr *)rxq;
238 return enetc_clean_rx_ring(rx_ring, rx_pkts, nb_pkts);