1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(C) 2019 Marvell International Ltd.
3 */
4
5 #include <inttypes.h>
6 #include <math.h>
7
8 #include "otx2_ethdev.h"
9
10 static int
parse_flow_max_priority(const char * key,const char * value,void * extra_args)11 parse_flow_max_priority(const char *key, const char *value, void *extra_args)
12 {
13 RTE_SET_USED(key);
14 uint16_t val;
15
16 val = atoi(value);
17
18 /* Limit the max priority to 32 */
19 if (val < 1 || val > 32)
20 return -EINVAL;
21
22 *(uint16_t *)extra_args = val;
23
24 return 0;
25 }
26
27 static int
parse_flow_prealloc_size(const char * key,const char * value,void * extra_args)28 parse_flow_prealloc_size(const char *key, const char *value, void *extra_args)
29 {
30 RTE_SET_USED(key);
31 uint16_t val;
32
33 val = atoi(value);
34
35 /* Limit the prealloc size to 32 */
36 if (val < 1 || val > 32)
37 return -EINVAL;
38
39 *(uint16_t *)extra_args = val;
40
41 return 0;
42 }
43
44 static int
parse_reta_size(const char * key,const char * value,void * extra_args)45 parse_reta_size(const char *key, const char *value, void *extra_args)
46 {
47 RTE_SET_USED(key);
48 uint32_t val;
49
50 val = atoi(value);
51
52 if (val <= ETH_RSS_RETA_SIZE_64)
53 val = ETH_RSS_RETA_SIZE_64;
54 else if (val > ETH_RSS_RETA_SIZE_64 && val <= ETH_RSS_RETA_SIZE_128)
55 val = ETH_RSS_RETA_SIZE_128;
56 else if (val > ETH_RSS_RETA_SIZE_128 && val <= ETH_RSS_RETA_SIZE_256)
57 val = ETH_RSS_RETA_SIZE_256;
58 else
59 val = NIX_RSS_RETA_SIZE;
60
61 *(uint16_t *)extra_args = val;
62
63 return 0;
64 }
65
66 static int
parse_ipsec_in_max_spi(const char * key,const char * value,void * extra_args)67 parse_ipsec_in_max_spi(const char *key, const char *value, void *extra_args)
68 {
69 RTE_SET_USED(key);
70 uint32_t val;
71
72 val = atoi(value);
73
74 *(uint16_t *)extra_args = val;
75
76 return 0;
77 }
78
79 static int
parse_flag(const char * key,const char * value,void * extra_args)80 parse_flag(const char *key, const char *value, void *extra_args)
81 {
82 RTE_SET_USED(key);
83
84 *(uint16_t *)extra_args = atoi(value);
85
86 return 0;
87 }
88
89 static int
parse_sqb_count(const char * key,const char * value,void * extra_args)90 parse_sqb_count(const char *key, const char *value, void *extra_args)
91 {
92 RTE_SET_USED(key);
93 uint32_t val;
94
95 val = atoi(value);
96
97 if (val < NIX_MIN_SQB || val > NIX_MAX_SQB)
98 return -EINVAL;
99
100 *(uint16_t *)extra_args = val;
101
102 return 0;
103 }
104
105 static int
parse_switch_header_type(const char * key,const char * value,void * extra_args)106 parse_switch_header_type(const char *key, const char *value, void *extra_args)
107 {
108 RTE_SET_USED(key);
109
110 if (strcmp(value, "higig2") == 0)
111 *(uint16_t *)extra_args = OTX2_PRIV_FLAGS_HIGIG;
112
113 if (strcmp(value, "dsa") == 0)
114 *(uint16_t *)extra_args = OTX2_PRIV_FLAGS_EDSA;
115
116 if (strcmp(value, "chlen90b") == 0)
117 *(uint16_t *)extra_args = OTX2_PRIV_FLAGS_LEN_90B;
118 return 0;
119 }
120
121 #define OTX2_RSS_RETA_SIZE "reta_size"
122 #define OTX2_IPSEC_IN_MAX_SPI "ipsec_in_max_spi"
123 #define OTX2_SCL_ENABLE "scalar_enable"
124 #define OTX2_MAX_SQB_COUNT "max_sqb_count"
125 #define OTX2_FLOW_PREALLOC_SIZE "flow_prealloc_size"
126 #define OTX2_FLOW_MAX_PRIORITY "flow_max_priority"
127 #define OTX2_SWITCH_HEADER_TYPE "switch_header"
128 #define OTX2_RSS_TAG_AS_XOR "tag_as_xor"
129 #define OTX2_LOCK_RX_CTX "lock_rx_ctx"
130 #define OTX2_LOCK_TX_CTX "lock_tx_ctx"
131
132 int
otx2_ethdev_parse_devargs(struct rte_devargs * devargs,struct otx2_eth_dev * dev)133 otx2_ethdev_parse_devargs(struct rte_devargs *devargs, struct otx2_eth_dev *dev)
134 {
135 uint16_t rss_size = NIX_RSS_RETA_SIZE;
136 uint16_t sqb_count = NIX_MAX_SQB;
137 uint16_t flow_prealloc_size = 8;
138 uint16_t switch_header_type = 0;
139 uint16_t flow_max_priority = 3;
140 uint16_t ipsec_in_max_spi = 1;
141 uint16_t rss_tag_as_xor = 0;
142 uint16_t scalar_enable = 0;
143 struct rte_kvargs *kvlist;
144 uint16_t lock_rx_ctx = 0;
145 uint16_t lock_tx_ctx = 0;
146
147 if (devargs == NULL)
148 goto null_devargs;
149
150 kvlist = rte_kvargs_parse(devargs->args, NULL);
151 if (kvlist == NULL)
152 goto exit;
153
154 rte_kvargs_process(kvlist, OTX2_RSS_RETA_SIZE,
155 &parse_reta_size, &rss_size);
156 rte_kvargs_process(kvlist, OTX2_IPSEC_IN_MAX_SPI,
157 &parse_ipsec_in_max_spi, &ipsec_in_max_spi);
158 rte_kvargs_process(kvlist, OTX2_SCL_ENABLE,
159 &parse_flag, &scalar_enable);
160 rte_kvargs_process(kvlist, OTX2_MAX_SQB_COUNT,
161 &parse_sqb_count, &sqb_count);
162 rte_kvargs_process(kvlist, OTX2_FLOW_PREALLOC_SIZE,
163 &parse_flow_prealloc_size, &flow_prealloc_size);
164 rte_kvargs_process(kvlist, OTX2_FLOW_MAX_PRIORITY,
165 &parse_flow_max_priority, &flow_max_priority);
166 rte_kvargs_process(kvlist, OTX2_SWITCH_HEADER_TYPE,
167 &parse_switch_header_type, &switch_header_type);
168 rte_kvargs_process(kvlist, OTX2_RSS_TAG_AS_XOR,
169 &parse_flag, &rss_tag_as_xor);
170 rte_kvargs_process(kvlist, OTX2_LOCK_RX_CTX,
171 &parse_flag, &lock_rx_ctx);
172 rte_kvargs_process(kvlist, OTX2_LOCK_TX_CTX,
173 &parse_flag, &lock_tx_ctx);
174 otx2_parse_common_devargs(kvlist);
175 rte_kvargs_free(kvlist);
176
177 null_devargs:
178 dev->ipsec_in_max_spi = ipsec_in_max_spi;
179 dev->scalar_ena = scalar_enable;
180 dev->rss_tag_as_xor = rss_tag_as_xor;
181 dev->max_sqb_count = sqb_count;
182 dev->lock_rx_ctx = lock_rx_ctx;
183 dev->lock_tx_ctx = lock_tx_ctx;
184 dev->rss_info.rss_size = rss_size;
185 dev->npc_flow.flow_prealloc_size = flow_prealloc_size;
186 dev->npc_flow.flow_max_priority = flow_max_priority;
187 dev->npc_flow.switch_header_type = switch_header_type;
188 return 0;
189
190 exit:
191 return -EINVAL;
192 }
193
194 RTE_PMD_REGISTER_PARAM_STRING(net_octeontx2,
195 OTX2_RSS_RETA_SIZE "=<64|128|256>"
196 OTX2_IPSEC_IN_MAX_SPI "=<1-65535>"
197 OTX2_SCL_ENABLE "=1"
198 OTX2_MAX_SQB_COUNT "=<8-512>"
199 OTX2_FLOW_PREALLOC_SIZE "=<1-32>"
200 OTX2_FLOW_MAX_PRIORITY "=<1-32>"
201 OTX2_SWITCH_HEADER_TYPE "=<higig2|dsa|chlen90b>"
202 OTX2_RSS_TAG_AS_XOR "=1"
203 OTX2_NPA_LOCK_MASK "=<1-65535>"
204 OTX2_LOCK_RX_CTX "=1"
205 OTX2_LOCK_TX_CTX "=1");
206