4 * Copyright(c) 2017 Cavium, Inc.. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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
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.
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,
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27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 #include <rte_ethdev.h>
35 #include <rte_cycles.h>
36 #include <rte_malloc.h>
37 #include <rte_alarm.h>
40 #include "lio_23xx_vf.h"
41 #include "lio_ethdev.h"
45 lio_hweight64(uint64_t w)
47 uint64_t res = w - ((w >> 1) & 0x5555555555555555ul);
50 (res & 0x3333333333333333ul) + ((res >> 2) & 0x3333333333333333ul);
51 res = (res + (res >> 4)) & 0x0F0F0F0F0F0F0F0Ful;
52 res = res + (res >> 8);
53 res = res + (res >> 16);
55 return (res + (res >> 32)) & 0x00000000000000FFul;
58 static int lio_dev_configure(struct rte_eth_dev *eth_dev)
60 struct lio_device *lio_dev = LIO_DEV(eth_dev);
61 uint16_t timeout = LIO_MAX_CMD_TIMEOUT;
62 int retval, num_iqueues, num_oqueues;
63 uint8_t mac[ETHER_ADDR_LEN], i;
64 struct lio_if_cfg_resp *resp;
65 struct lio_soft_command *sc;
66 union lio_if_cfg if_cfg;
69 PMD_INIT_FUNC_TRACE();
71 /* Re-configuring firmware not supported.
72 * Can't change tx/rx queues per port from initial value.
74 if (lio_dev->port_configured) {
75 if ((lio_dev->nb_rx_queues != eth_dev->data->nb_rx_queues) ||
76 (lio_dev->nb_tx_queues != eth_dev->data->nb_tx_queues)) {
78 "rxq/txq re-conf not supported. Restart application with new value.\n");
84 lio_dev->nb_rx_queues = eth_dev->data->nb_rx_queues;
85 lio_dev->nb_tx_queues = eth_dev->data->nb_tx_queues;
87 resp_size = sizeof(struct lio_if_cfg_resp);
88 sc = lio_alloc_soft_command(lio_dev, 0, resp_size, 0);
92 resp = (struct lio_if_cfg_resp *)sc->virtrptr;
94 /* Firmware doesn't have capability to reconfigure the queues,
95 * Claim all queues, and use as many required
98 if_cfg.s.num_iqueues = lio_dev->nb_tx_queues;
99 if_cfg.s.num_oqueues = lio_dev->nb_rx_queues;
100 if_cfg.s.base_queue = 0;
102 if_cfg.s.gmx_port_id = lio_dev->pf_num;
104 lio_prepare_soft_command(lio_dev, sc, LIO_OPCODE,
105 LIO_OPCODE_IF_CFG, 0,
108 /* Setting wait time in seconds */
109 sc->wait_time = LIO_MAX_CMD_TIMEOUT / 1000;
111 retval = lio_send_soft_command(lio_dev, sc);
112 if (retval == LIO_IQ_SEND_FAILED) {
113 lio_dev_err(lio_dev, "iq/oq config failed status: %x\n",
115 /* Soft instr is freed by driver in case of failure. */
116 goto nic_config_fail;
119 /* Sleep on a wait queue till the cond flag indicates that the
120 * response arrived or timed-out.
122 while ((*sc->status_word == LIO_COMPLETION_WORD_INIT) && --timeout) {
123 lio_process_ordered_list(lio_dev);
127 retval = resp->status;
129 lio_dev_err(lio_dev, "iq/oq config failed\n");
130 goto nic_config_fail;
133 lio_swap_8B_data((uint64_t *)(&resp->cfg_info),
134 sizeof(struct octeon_if_cfg_info) >> 3);
136 num_iqueues = lio_hweight64(resp->cfg_info.iqmask);
137 num_oqueues = lio_hweight64(resp->cfg_info.oqmask);
139 if (!(num_iqueues) || !(num_oqueues)) {
141 "Got bad iqueues (%016lx) or oqueues (%016lx) from firmware.\n",
142 (unsigned long)resp->cfg_info.iqmask,
143 (unsigned long)resp->cfg_info.oqmask);
144 goto nic_config_fail;
148 "interface %d, iqmask %016lx, oqmask %016lx, numiqueues %d, numoqueues %d\n",
149 eth_dev->data->port_id,
150 (unsigned long)resp->cfg_info.iqmask,
151 (unsigned long)resp->cfg_info.oqmask,
152 num_iqueues, num_oqueues);
154 lio_dev->linfo.num_rxpciq = num_oqueues;
155 lio_dev->linfo.num_txpciq = num_iqueues;
157 for (i = 0; i < num_oqueues; i++) {
158 lio_dev->linfo.rxpciq[i].rxpciq64 =
159 resp->cfg_info.linfo.rxpciq[i].rxpciq64;
160 lio_dev_dbg(lio_dev, "index %d OQ %d\n",
161 i, lio_dev->linfo.rxpciq[i].s.q_no);
164 for (i = 0; i < num_iqueues; i++) {
165 lio_dev->linfo.txpciq[i].txpciq64 =
166 resp->cfg_info.linfo.txpciq[i].txpciq64;
167 lio_dev_dbg(lio_dev, "index %d IQ %d\n",
168 i, lio_dev->linfo.txpciq[i].s.q_no);
171 lio_dev->linfo.hw_addr = resp->cfg_info.linfo.hw_addr;
172 lio_dev->linfo.gmxport = resp->cfg_info.linfo.gmxport;
173 lio_dev->linfo.link.link_status64 =
174 resp->cfg_info.linfo.link.link_status64;
176 /* 64-bit swap required on LE machines */
177 lio_swap_8B_data(&lio_dev->linfo.hw_addr, 1);
178 for (i = 0; i < ETHER_ADDR_LEN; i++)
179 mac[i] = *((uint8_t *)(((uint8_t *)&lio_dev->linfo.hw_addr) +
182 /* Copy the permanent MAC address */
183 ether_addr_copy((struct ether_addr *)mac, ð_dev->data->mac_addrs[0]);
185 lio_dev->port_configured = 1;
187 lio_free_soft_command(sc);
192 lio_dev_err(lio_dev, "Failed retval %d\n", retval);
193 lio_free_soft_command(sc);
194 lio_free_instr_queue0(lio_dev);
199 /* Define our ethernet definitions */
200 static const struct eth_dev_ops liovf_eth_dev_ops = {
201 .dev_configure = lio_dev_configure,
205 lio_check_pf_hs_response(void *lio_dev)
207 struct lio_device *dev = lio_dev;
209 /* check till response arrives */
210 if (dev->pfvf_hsword.coproc_tics_per_us)
213 cn23xx_vf_handle_mbox(dev);
215 rte_eal_alarm_set(1, lio_check_pf_hs_response, lio_dev);
219 * \brief Identify the LIO device and to map the BAR address space
220 * @param lio_dev lio device
223 lio_chip_specific_setup(struct lio_device *lio_dev)
225 struct rte_pci_device *pdev = lio_dev->pci_dev;
226 uint32_t dev_id = pdev->id.device_id;
231 case LIO_CN23XX_VF_VID:
232 lio_dev->chip_id = LIO_CN23XX_VF_VID;
233 ret = cn23xx_vf_setup_device(lio_dev);
238 lio_dev_err(lio_dev, "Unsupported Chip\n");
242 lio_dev_info(lio_dev, "DEVICE : %s\n", s);
248 lio_first_time_init(struct lio_device *lio_dev,
249 struct rte_pci_device *pdev)
253 PMD_INIT_FUNC_TRACE();
255 /* set dpdk specific pci device pointer */
256 lio_dev->pci_dev = pdev;
258 /* Identify the LIO type and set device ops */
259 if (lio_chip_specific_setup(lio_dev)) {
260 lio_dev_err(lio_dev, "Chip specific setup failed\n");
264 /* Initialize soft command buffer pool */
265 if (lio_setup_sc_buffer_pool(lio_dev)) {
266 lio_dev_err(lio_dev, "sc buffer pool allocation failed\n");
270 /* Initialize lists to manage the requests of different types that
271 * arrive from applications for this lio device.
273 lio_setup_response_list(lio_dev);
275 if (lio_dev->fn_list.setup_mbox(lio_dev)) {
276 lio_dev_err(lio_dev, "Mailbox setup failed\n");
280 /* Check PF response */
281 lio_check_pf_hs_response((void *)lio_dev);
283 /* Do handshake and exit if incompatible PF driver */
284 if (cn23xx_pfvf_handshake(lio_dev))
288 cn23xx_vf_ask_pf_to_do_flr(lio_dev);
289 /* Wait for FLR for 100ms per SRIOV specification */
292 if (cn23xx_vf_set_io_queues_off(lio_dev)) {
293 lio_dev_err(lio_dev, "Setting io queues off failed\n");
297 if (lio_dev->fn_list.setup_device_regs(lio_dev)) {
298 lio_dev_err(lio_dev, "Failed to configure device registers\n");
302 if (lio_setup_instr_queue0(lio_dev)) {
303 lio_dev_err(lio_dev, "Failed to setup instruction queue 0\n");
307 dpdk_queues = (int)lio_dev->sriov_info.rings_per_vf;
309 lio_dev->max_tx_queues = dpdk_queues;
310 lio_dev->max_rx_queues = dpdk_queues;
315 lio_free_sc_buffer_pool(lio_dev);
316 if (lio_dev->mbox[0])
317 lio_dev->fn_list.free_mbox(lio_dev);
318 if (lio_dev->instr_queue[0])
319 lio_free_instr_queue0(lio_dev);
325 lio_eth_dev_uninit(struct rte_eth_dev *eth_dev)
327 struct lio_device *lio_dev = LIO_DEV(eth_dev);
329 PMD_INIT_FUNC_TRACE();
331 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
334 /* lio_free_sc_buffer_pool */
335 lio_free_sc_buffer_pool(lio_dev);
337 rte_free(eth_dev->data->mac_addrs);
338 eth_dev->data->mac_addrs = NULL;
344 lio_eth_dev_init(struct rte_eth_dev *eth_dev)
346 struct rte_pci_device *pdev = RTE_DEV_TO_PCI(eth_dev->device);
347 struct lio_device *lio_dev = LIO_DEV(eth_dev);
349 PMD_INIT_FUNC_TRACE();
351 /* Primary does the initialization. */
352 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
355 rte_eth_copy_pci_info(eth_dev, pdev);
356 eth_dev->data->dev_flags |= RTE_ETH_DEV_DETACHABLE;
358 if (pdev->mem_resource[0].addr) {
359 lio_dev->hw_addr = pdev->mem_resource[0].addr;
361 PMD_INIT_LOG(ERR, "ERROR: Failed to map BAR0\n");
365 lio_dev->eth_dev = eth_dev;
366 /* set lio device print string */
367 snprintf(lio_dev->dev_string, sizeof(lio_dev->dev_string),
368 "%s[%02x:%02x.%x]", pdev->driver->driver.name,
369 pdev->addr.bus, pdev->addr.devid, pdev->addr.function);
371 lio_dev->port_id = eth_dev->data->port_id;
373 if (lio_first_time_init(lio_dev, pdev)) {
374 lio_dev_err(lio_dev, "Device init failed\n");
378 eth_dev->dev_ops = &liovf_eth_dev_ops;
379 eth_dev->data->mac_addrs = rte_zmalloc("lio", ETHER_ADDR_LEN, 0);
380 if (eth_dev->data->mac_addrs == NULL) {
382 "MAC addresses memory allocation failed\n");
383 eth_dev->dev_ops = NULL;
387 rte_atomic64_set(&lio_dev->status, LIO_DEV_RUNNING);
390 lio_dev->port_configured = 0;
391 /* Always allow unicast packets */
392 lio_dev->ifflags |= LIO_IFFLAG_UNICAST;
397 /* Set of PCI devices this driver supports */
398 static const struct rte_pci_id pci_id_liovf_map[] = {
399 { RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, LIO_CN23XX_VF_VID) },
400 { .vendor_id = 0, /* sentinel */ }
403 static struct eth_driver rte_liovf_pmd = {
405 .id_table = pci_id_liovf_map,
406 .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
407 .probe = rte_eth_dev_pci_probe,
408 .remove = rte_eth_dev_pci_remove,
410 .eth_dev_init = lio_eth_dev_init,
411 .eth_dev_uninit = lio_eth_dev_uninit,
412 .dev_private_size = sizeof(struct lio_device),
415 RTE_PMD_REGISTER_PCI(net_liovf, rte_liovf_pmd.pci_drv);
416 RTE_PMD_REGISTER_PCI_TABLE(net_liovf, pci_id_liovf_map);
417 RTE_PMD_REGISTER_KMOD_DEP(net_liovf, "* igb_uio | vfio");