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.
33 #include <rte_errno.h>
42 sfc_dma_alloc(const struct sfc_adapter *sa, const char *name, uint16_t id,
43 size_t len, int socket_id, efsys_mem_t *esmp)
45 const struct rte_memzone *mz;
47 sfc_log_init(sa, "name=%s id=%u len=%lu socket_id=%d",
48 name, id, len, socket_id);
50 mz = rte_eth_dma_zone_reserve(sa->eth_dev, name, id, len,
51 sysconf(_SC_PAGESIZE), socket_id);
53 sfc_err(sa, "cannot reserve DMA zone for %s:%u %#x@%d: %s",
54 name, (unsigned int)id, (unsigned int)len, socket_id,
55 rte_strerror(rte_errno));
59 esmp->esm_addr = rte_mem_phy2mch(mz->memseg_id, mz->phys_addr);
60 if (esmp->esm_addr == RTE_BAD_PHYS_ADDR) {
61 (void)rte_memzone_free(mz);
66 esmp->esm_base = mz->addr;
72 sfc_dma_free(const struct sfc_adapter *sa, efsys_mem_t *esmp)
76 sfc_log_init(sa, "name=%s", esmp->esm_mz->name);
78 rc = rte_memzone_free(esmp->esm_mz);
80 sfc_err(sa, "rte_memzone_free(() failed: %d", rc);
82 memset(esmp, 0, sizeof(*esmp));
86 * Check requested device level configuration.
87 * Receive and transmit configuration is checked in corresponding
91 sfc_check_conf(struct sfc_adapter *sa)
93 const struct rte_eth_conf *conf = &sa->eth_dev->data->dev_conf;
96 if (conf->link_speeds != ETH_LINK_SPEED_AUTONEG) {
97 sfc_err(sa, "Manual link speed/duplex choice not supported");
101 if (conf->lpbk_mode != 0) {
102 sfc_err(sa, "Loopback not supported");
106 if (conf->dcb_capability_en != 0) {
107 sfc_err(sa, "Priority-based flow control not supported");
111 if (conf->fdir_conf.mode != RTE_FDIR_MODE_NONE) {
112 sfc_err(sa, "Flow Director not supported");
116 if (conf->intr_conf.lsc != 0) {
117 sfc_err(sa, "Link status change interrupt not supported");
121 if (conf->intr_conf.rxq != 0) {
122 sfc_err(sa, "Receive queue interrupt not supported");
130 sfc_start(struct sfc_adapter *sa)
134 sfc_log_init(sa, "entry");
136 SFC_ASSERT(sfc_adapter_is_locked(sa));
139 case SFC_ADAPTER_CONFIGURED:
141 case SFC_ADAPTER_STARTED:
142 sfc_info(sa, "already started");
149 sa->state = SFC_ADAPTER_STARTING;
151 sfc_log_init(sa, "init nic");
152 rc = efx_nic_init(sa->nic);
156 sa->state = SFC_ADAPTER_STARTED;
157 sfc_log_init(sa, "done");
161 sa->state = SFC_ADAPTER_CONFIGURED;
163 sfc_log_init(sa, "failed %d", rc);
168 sfc_stop(struct sfc_adapter *sa)
170 sfc_log_init(sa, "entry");
172 SFC_ASSERT(sfc_adapter_is_locked(sa));
175 case SFC_ADAPTER_STARTED:
177 case SFC_ADAPTER_CONFIGURED:
178 sfc_info(sa, "already stopped");
181 sfc_err(sa, "stop in unexpected state %u", sa->state);
186 sa->state = SFC_ADAPTER_STOPPING;
188 efx_nic_fini(sa->nic);
190 sa->state = SFC_ADAPTER_CONFIGURED;
191 sfc_log_init(sa, "done");
195 sfc_configure(struct sfc_adapter *sa)
199 sfc_log_init(sa, "entry");
201 SFC_ASSERT(sfc_adapter_is_locked(sa));
203 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
204 sa->state = SFC_ADAPTER_CONFIGURING;
206 rc = sfc_check_conf(sa);
208 goto fail_check_conf;
210 sa->state = SFC_ADAPTER_CONFIGURED;
211 sfc_log_init(sa, "done");
215 sa->state = SFC_ADAPTER_INITIALIZED;
216 sfc_log_init(sa, "failed %d", rc);
221 sfc_close(struct sfc_adapter *sa)
223 sfc_log_init(sa, "entry");
225 SFC_ASSERT(sfc_adapter_is_locked(sa));
227 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
228 sa->state = SFC_ADAPTER_CLOSING;
230 sa->state = SFC_ADAPTER_INITIALIZED;
231 sfc_log_init(sa, "done");
235 sfc_mem_bar_init(struct sfc_adapter *sa)
237 struct rte_eth_dev *eth_dev = sa->eth_dev;
238 struct rte_pci_device *pci_dev = SFC_DEV_TO_PCI(eth_dev);
239 efsys_bar_t *ebp = &sa->mem_bar;
241 struct rte_mem_resource *res;
243 for (i = 0; i < RTE_DIM(pci_dev->mem_resource); i++) {
244 res = &pci_dev->mem_resource[i];
245 if ((res->len != 0) && (res->phys_addr != 0)) {
246 /* Found first memory BAR */
247 SFC_BAR_LOCK_INIT(ebp, eth_dev->data->name);
249 ebp->esb_dev = pci_dev;
250 ebp->esb_base = res->addr;
259 sfc_mem_bar_fini(struct sfc_adapter *sa)
261 efsys_bar_t *ebp = &sa->mem_bar;
263 SFC_BAR_LOCK_DESTROY(ebp);
264 memset(ebp, 0, sizeof(*ebp));
268 sfc_attach(struct sfc_adapter *sa)
270 struct rte_pci_device *pci_dev = SFC_DEV_TO_PCI(sa->eth_dev);
274 sfc_log_init(sa, "entry");
276 SFC_ASSERT(sfc_adapter_is_locked(sa));
278 sa->socket_id = rte_socket_id();
280 sfc_log_init(sa, "init mem bar");
281 rc = sfc_mem_bar_init(sa);
283 goto fail_mem_bar_init;
285 sfc_log_init(sa, "get family");
286 rc = efx_family(pci_dev->id.vendor_id, pci_dev->id.device_id,
290 sfc_log_init(sa, "family is %u", sa->family);
292 sfc_log_init(sa, "create nic");
293 rte_spinlock_init(&sa->nic_lock);
294 rc = efx_nic_create(sa->family, (efsys_identifier_t *)sa,
295 &sa->mem_bar, &sa->nic_lock, &enp);
297 goto fail_nic_create;
300 rc = sfc_mcdi_init(sa);
304 sfc_log_init(sa, "probe nic");
305 rc = efx_nic_probe(enp);
309 efx_mcdi_new_epoch(enp);
311 sfc_log_init(sa, "reset nic");
312 rc = efx_nic_reset(enp);
316 /* Initialize NIC to double-check hardware */
317 sfc_log_init(sa, "init nic");
318 rc = efx_nic_init(enp);
322 sfc_log_init(sa, "fini nic");
328 sa->state = SFC_ADAPTER_INITIALIZED;
330 sfc_log_init(sa, "done");
335 sfc_log_init(sa, "unprobe nic");
336 efx_nic_unprobe(enp);
342 sfc_log_init(sa, "destroy nic");
344 efx_nic_destroy(enp);
348 sfc_mem_bar_fini(sa);
351 sfc_log_init(sa, "failed %d", rc);
356 sfc_detach(struct sfc_adapter *sa)
358 efx_nic_t *enp = sa->nic;
360 sfc_log_init(sa, "entry");
362 SFC_ASSERT(sfc_adapter_is_locked(sa));
364 sfc_log_init(sa, "unprobe nic");
365 efx_nic_unprobe(enp);
369 sfc_log_init(sa, "destroy nic");
371 efx_nic_destroy(enp);
373 sfc_mem_bar_fini(sa);
375 sa->state = SFC_ADAPTER_UNINITIALIZED;