2 * Copyright (c) 2016 Solarflare Communications Inc.
5 * This software was jointly developed between OKTET Labs (under contract
6 * for Solarflare) and Solarflare Communications, Inc.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
11 * 1. Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright notice,
14 * this list of conditions and the following disclaimer in the documentation
15 * and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
19 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
21 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
24 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
26 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
27 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 #include <rte_ethdev.h>
36 #include <rte_kvargs.h>
37 #include <rte_spinlock.h>
45 #define SFC_DEV_TO_PCI(eth_dev) \
46 RTE_DEV_TO_PCI((eth_dev)->device)
50 * | UNINITIALIZED |<-----------+
52 * |.eth_dev_init |.eth_dev_uninit
54 * +---------------+------------+
56 * +---------------+<-----------+
60 * | CONFIGURING |------------^
61 * +---------------+ failed |
68 * +---------------+------------+
70 * +---------------+<-----------+
74 * | STARTING |------------^
75 * +---------------+ failed |
82 * +---------------+------------+
86 enum sfc_adapter_state {
87 SFC_ADAPTER_UNINITIALIZED = 0,
88 SFC_ADAPTER_INITIALIZED,
89 SFC_ADAPTER_CONFIGURING,
90 SFC_ADAPTER_CONFIGURED,
100 SFC_MCDI_UNINITIALIZED = 0,
101 SFC_MCDI_INITIALIZED,
111 enum sfc_mcdi_state state;
112 efx_mcdi_transport_t transport;
116 efx_intr_type_t type;
119 /* Adapter private data */
122 * PMD setup and configuration is not thread safe. Since it is not
123 * performance sensitive, it is better to guarantee thread-safety
124 * and add device level lock. Adapter control operations which
125 * change its state should acquire the lock.
128 enum sfc_adapter_state state;
129 struct rte_eth_dev *eth_dev;
130 struct rte_kvargs *kvargs;
136 rte_spinlock_t nic_lock;
138 struct sfc_mcdi mcdi;
139 struct sfc_intr intr;
141 unsigned int rxq_max;
142 unsigned int txq_max;
146 * Add wrapper functions to acquire/release lock to be able to remove or
147 * change the lock in one place.
151 sfc_adapter_lock_init(struct sfc_adapter *sa)
153 rte_spinlock_init(&sa->lock);
157 sfc_adapter_is_locked(struct sfc_adapter *sa)
159 return rte_spinlock_is_locked(&sa->lock);
163 sfc_adapter_lock(struct sfc_adapter *sa)
165 rte_spinlock_lock(&sa->lock);
169 sfc_adapter_unlock(struct sfc_adapter *sa)
171 rte_spinlock_unlock(&sa->lock);
175 sfc_adapter_lock_fini(__rte_unused struct sfc_adapter *sa)
177 /* Just for symmetry of the API */
180 int sfc_dma_alloc(const struct sfc_adapter *sa, const char *name, uint16_t id,
181 size_t len, int socket_id, efsys_mem_t *esmp);
182 void sfc_dma_free(const struct sfc_adapter *sa, efsys_mem_t *esmp);
184 int sfc_attach(struct sfc_adapter *sa);
185 void sfc_detach(struct sfc_adapter *sa);
186 int sfc_start(struct sfc_adapter *sa);
187 void sfc_stop(struct sfc_adapter *sa);
189 int sfc_mcdi_init(struct sfc_adapter *sa);
190 void sfc_mcdi_fini(struct sfc_adapter *sa);
192 int sfc_configure(struct sfc_adapter *sa);
193 void sfc_close(struct sfc_adapter *sa);
195 int sfc_intr_attach(struct sfc_adapter *sa);
196 void sfc_intr_detach(struct sfc_adapter *sa);
197 int sfc_intr_init(struct sfc_adapter *sa);
198 void sfc_intr_fini(struct sfc_adapter *sa);
199 int sfc_intr_start(struct sfc_adapter *sa);
200 void sfc_intr_stop(struct sfc_adapter *sa);