1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright 2018 NXP
*/
#include <stdbool.h>
#include <stdint.h>
#include <unistd.h>
#include "rte_ethdev.h"
#include "rte_malloc.h"
#include "rte_memzone.h"
#include "base/enetc_hw.h"
#include "enetc.h"
#include "enetc_logs.h"
#define ENETC_RXBD_BUNDLE 8 /* Number of BDs to update at once */
static int
enetc_clean_tx_ring(struct enetc_bdr *tx_ring)
{
int tx_frm_cnt = 0;
struct enetc_swbd *tx_swbd;
int i;
i = tx_ring->next_to_clean;
tx_swbd = &tx_ring->q_swbd[i];
while ((int)(enetc_rd_reg(tx_ring->tcisr) &
ENETC_TBCISR_IDX_MASK) != i) {
rte_pktmbuf_free(tx_swbd->buffer_addr);
tx_swbd->buffer_addr = NULL;
tx_swbd++;
i++;
if (unlikely(i == tx_ring->bd_count)) {
i = 0;
tx_swbd = &tx_ring->q_swbd[0];
}
tx_frm_cnt++;
}
tx_ring->next_to_clean = i;
return tx_frm_cnt++;
}
uint16_t
enetc_xmit_pkts(void *tx_queue,
struct rte_mbuf **tx_pkts,
uint16_t nb_pkts)
{
struct enetc_swbd *tx_swbd;
int i, start;
struct enetc_tx_bd *txbd;
struct enetc_bdr *tx_ring = (struct enetc_bdr *)tx_queue;
i = tx_ring->next_to_use;
start = 0;
while (nb_pkts--) {
enetc_clean_tx_ring(tx_ring);
tx_ring->q_swbd[i].buffer_addr = tx_pkts[start];
txbd = ENETC_TXBD(*tx_ring, i);
tx_swbd = &tx_ring->q_swbd[i];
txbd->frm_len = tx_pkts[start]->pkt_len;
txbd->buf_len = txbd->frm_len;
txbd->flags = rte_cpu_to_le_16(ENETC_TXBD_FLAGS_F);
txbd->addr = (uint64_t)(uintptr_t)
rte_cpu_to_le_64((size_t)tx_swbd->buffer_addr->buf_addr +
tx_swbd->buffer_addr->data_off);
i++;
start++;
if (unlikely(i == tx_ring->bd_count))
i = 0;
}
tx_ring->next_to_use = i;
enetc_wr_reg(tx_ring->tcir, i);
return start;
}
int
enetc_refill_rx_ring(struct enetc_bdr *rx_ring, const int buff_cnt)
{
struct enetc_swbd *rx_swbd;
union enetc_rx_bd *rxbd;
int i, j;
i = rx_ring->next_to_use;
rx_swbd = &rx_ring->q_swbd[i];
rxbd = ENETC_RXBD(*rx_ring, i);
for (j = 0; j < buff_cnt; j++) {
rx_swbd->buffer_addr =
rte_cpu_to_le_64(rte_mbuf_raw_alloc(rx_ring->mb_pool));
rxbd->w.addr = (uint64_t)(uintptr_t)
rx_swbd->buffer_addr->buf_addr +
rx_swbd->buffer_addr->data_off;
/* clear 'R" as well */
rxbd->r.lstatus = 0;
rx_swbd++;
rxbd++;
i++;
if (unlikely(i == rx_ring->bd_count)) {
i = 0;
rxbd = ENETC_RXBD(*rx_ring, 0);
rx_swbd = &rx_ring->q_swbd[i];
}
}
if (likely(j)) {
rx_ring->next_to_alloc = i;
rx_ring->next_to_use = i;
enetc_wr_reg(rx_ring->rcir, i);
}
return j;
}
static inline void __attribute__((hot))
enetc_dev_rx_parse(struct rte_mbuf *m, uint16_t parse_results)
{
ENETC_PMD_DP_DEBUG("parse summary = 0x%x ", parse_results);
m->packet_type = RTE_PTYPE_UNKNOWN;
switch (parse_results) {
case ENETC_PKT_TYPE_ETHER:
m->packet_type = RTE_PTYPE_L2_ETHER;
break;
case ENETC_PKT_TYPE_IPV4:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV4;
break;
case ENETC_PKT_TYPE_IPV6:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV6;
break;
case ENETC_PKT_TYPE_IPV4_TCP:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV4 |
RTE_PTYPE_L4_TCP;
break;
case ENETC_PKT_TYPE_IPV6_TCP:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV6 |
RTE_PTYPE_L4_TCP;
break;
case ENETC_PKT_TYPE_IPV4_UDP:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV4 |
RTE_PTYPE_L4_UDP;
break;
case ENETC_PKT_TYPE_IPV6_UDP:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV6 |
RTE_PTYPE_L4_UDP;
break;
case ENETC_PKT_TYPE_IPV4_SCTP:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV4 |
RTE_PTYPE_L4_SCTP;
break;
case ENETC_PKT_TYPE_IPV6_SCTP:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV6 |
RTE_PTYPE_L4_SCTP;
break;
case ENETC_PKT_TYPE_IPV4_ICMP:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV4 |
RTE_PTYPE_L4_ICMP;
break;
case ENETC_PKT_TYPE_IPV6_ICMP:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV6 |
RTE_PTYPE_L4_ICMP;
break;
/* More switch cases can be added */
default:
m->packet_type = RTE_PTYPE_UNKNOWN;
}
}
static int
enetc_clean_rx_ring(struct enetc_bdr *rx_ring,
struct rte_mbuf **rx_pkts,
int work_limit)
{
int rx_frm_cnt = 0;
int cleaned_cnt, i;
struct enetc_swbd *rx_swbd;
cleaned_cnt = enetc_bd_unused(rx_ring);
/* next descriptor to process */
i = rx_ring->next_to_clean;
rx_swbd = &rx_ring->q_swbd[i];
while (likely(rx_frm_cnt < work_limit)) {
union enetc_rx_bd *rxbd;
uint32_t bd_status;
if (cleaned_cnt >= ENETC_RXBD_BUNDLE) {
int count = enetc_refill_rx_ring(rx_ring, cleaned_cnt);
cleaned_cnt -= count;
}
rxbd = ENETC_RXBD(*rx_ring, i);
bd_status = rte_le_to_cpu_32(rxbd->r.lstatus);
if (!bd_status)
break;
rx_swbd->buffer_addr->pkt_len = rxbd->r.buf_len;
rx_swbd->buffer_addr->data_len = rxbd->r.buf_len;
rx_swbd->buffer_addr->hash.rss = rxbd->r.rss_hash;
rx_swbd->buffer_addr->ol_flags = 0;
enetc_dev_rx_parse(rx_swbd->buffer_addr,
rxbd->r.parse_summary);
rx_pkts[rx_frm_cnt] = rx_swbd->buffer_addr;
cleaned_cnt++;
rx_swbd++;
i++;
if (unlikely(i == rx_ring->bd_count)) {
i = 0;
rx_swbd = &rx_ring->q_swbd[i];
}
rx_ring->next_to_clean = i;
rx_frm_cnt++;
}
return rx_frm_cnt;
}
uint16_t
enetc_recv_pkts(void *rxq, struct rte_mbuf **rx_pkts,
uint16_t nb_pkts)
{
struct enetc_bdr *rx_ring = (struct enetc_bdr *)rxq;
return enetc_clean_rx_ring(rx_ring, rx_pkts, nb_pkts);
}
|
