1 /*
2 * BSD LICENSE
3 *
4 * Copyright(c) 2017 Cavium, Inc.. All rights reserved.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
16 * distribution.
17 * * Neither the name of Cavium, Inc. nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 * OWNER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #ifdef RSS
35
36 #include "lio_bsd.h"
37 #include "lio_common.h"
38 #include "lio_droq.h"
39 #include "lio_iq.h"
40 #include "lio_response_manager.h"
41 #include "lio_device.h"
42 #include "lio_ctrl.h"
43 #include "lio_main.h"
44 #include "lio_network.h"
45 #include "lio_rss.h"
46
47 int lio_send_rss_param(struct lio *lio);
48
49 static void
lio_set_rss_callback(struct octeon_device * oct,uint32_t status,void * arg)50 lio_set_rss_callback(struct octeon_device *oct, uint32_t status, void *arg)
51 {
52 struct lio_soft_command *sc = (struct lio_soft_command *)arg;
53
54 if (status)
55 lio_dev_err(oct, "Failed to SET RSS params\n");
56 else
57 lio_dev_info(oct, "SET RSS params\n");
58
59 lio_free_soft_command(oct, sc);
60 }
61
62 static void
lio_set_rss_info(struct lio * lio)63 lio_set_rss_info(struct lio *lio)
64 {
65 struct octeon_device *oct = lio->oct_dev;
66 struct lio_rss_params_set *rss_set = &lio->rss_set;
67 uint32_t rss_hash_config;
68 int i;
69 uint8_t queue_id;
70
71 for (i = 0; i < LIO_RSS_TABLE_SZ; i++) {
72 queue_id = rss_get_indirection_to_bucket(i);
73 queue_id = queue_id % oct->num_oqs;
74 rss_set->fw_itable[i] = queue_id;
75 }
76
77 rss_hash_config = rss_gethashconfig();
78 if (rss_hash_config & RSS_HASHTYPE_RSS_IPV4)
79 rss_set->hashinfo |= LIO_RSS_HASH_IPV4;
80
81 if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV4)
82 rss_set->hashinfo |= LIO_RSS_HASH_TCP_IPV4;
83
84 if (rss_hash_config & RSS_HASHTYPE_RSS_IPV6)
85 rss_set->hashinfo |= LIO_RSS_HASH_IPV6;
86
87 if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV6)
88 rss_set->hashinfo |= LIO_RSS_HASH_TCP_IPV6;
89
90 if (rss_hash_config & RSS_HASHTYPE_RSS_IPV6_EX)
91 rss_set->hashinfo |= LIO_RSS_HASH_IPV6_EX;
92
93 if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV6_EX)
94 rss_set->hashinfo |= LIO_RSS_HASH_TCP_IPV6_EX;
95 }
96
97 int
lio_send_rss_param(struct lio * lio)98 lio_send_rss_param(struct lio *lio)
99 {
100 struct octeon_device *oct = lio->oct_dev;
101 struct lio_soft_command *sc = NULL;
102 union octeon_cmd *cmd = NULL;
103 struct lio_rss_params *rss_param;
104 int i, retval;
105
106 sc = lio_alloc_soft_command(oct,
107 OCTEON_CMD_SIZE + sizeof(struct lio_rss_params), 0, 0);
108
109 if (sc == NULL) {
110 lio_dev_err(oct, "%s: Soft command allocation failed\n",
111 __func__);
112 return (ENOMEM);
113 }
114
115 sc->iq_no = lio->linfo.txpciq[0].s.q_no;
116
117 lio_prepare_soft_command(oct, sc, LIO_OPCODE_NIC, LIO_OPCODE_NIC_CMD, 0,
118 0, 0);
119
120 sc->callback = lio_set_rss_callback;
121 sc->callback_arg = sc;
122 sc->wait_time = 1000;
123
124 cmd = (union octeon_cmd *)sc->virtdptr;
125 cmd->cmd64 = 0;
126 cmd->s.cmd = LIO_CMD_SET_RSS;
127
128 rss_param = (struct lio_rss_params *)(cmd + 1);
129 rss_param->param.flags = 0;
130 rss_param->param.itablesize = LIO_RSS_TABLE_SZ;
131 rss_param->param.hashkeysize = LIO_RSS_KEY_SZ;
132
133 lio_set_rss_info(lio);
134 rss_param->param.hashinfo = lio->rss_set.hashinfo;
135 memcpy(rss_param->itable, (void *)lio->rss_set.fw_itable,
136 (size_t)rss_param->param.itablesize);
137
138 lio_dev_info(oct, "RSS itable: Size %u\n", rss_param->param.itablesize);
139 for (i = 0; i < rss_param->param.itablesize; i += 8) {
140 lio_dev_dbg(oct, " %03u:%2u, %03u:%2u, %03u:%2u, %03u:%2u, %03u:%2u, %03u:%2u, %03u:%2u, %03u:%2u\n",
141 i + 0, rss_param->itable[i + 0],
142 i + 1, rss_param->itable[i + 1],
143 i + 2, rss_param->itable[i + 2],
144 i + 3, rss_param->itable[i + 3],
145 i + 4, rss_param->itable[i + 4],
146 i + 5, rss_param->itable[i + 5],
147 i + 6, rss_param->itable[i + 6],
148 i + 7, rss_param->itable[i + 7]);
149 }
150
151 rss_getkey(lio->rss_set.key);
152
153 memcpy(rss_param->key, (void *)lio->rss_set.key,
154 (size_t)rss_param->param.hashkeysize);
155
156 /* swap cmd and rss params */
157 lio_swap_8B_data((uint64_t *)cmd,
158 ((OCTEON_CMD_SIZE + LIO_RSS_PARAM_SIZE) >> 3));
159
160 retval = lio_send_soft_command(oct, sc);
161 if (retval == LIO_IQ_SEND_FAILED) {
162 lio_dev_err(oct,
163 "%s: Sending soft command failed, status: %x\n",
164 __func__, retval);
165 lio_free_soft_command(oct, sc);
166 return (-1);
167 }
168
169 return (0);
170 }
171
172 #endif /* RSS */
173