1 /* SPDX-License-Identifier: BSD-3-Clause
6 #include <rte_ethdev_pci.h>
8 #include "enetc_logs.h"
11 int enetc_logtype_pmd;
13 /* Functions Prototypes */
14 static int enetc_dev_configure(struct rte_eth_dev *dev);
15 static int enetc_dev_start(struct rte_eth_dev *dev);
16 static void enetc_dev_stop(struct rte_eth_dev *dev);
17 static void enetc_dev_close(struct rte_eth_dev *dev);
18 static void enetc_dev_infos_get(struct rte_eth_dev *dev,
19 struct rte_eth_dev_info *dev_info);
20 static int enetc_link_update(struct rte_eth_dev *dev, int wait_to_complete);
21 static int enetc_hardware_init(struct enetc_eth_hw *hw);
22 static int enetc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
23 uint16_t nb_rx_desc, unsigned int socket_id,
24 const struct rte_eth_rxconf *rx_conf,
25 struct rte_mempool *mb_pool);
26 static void enetc_rx_queue_release(void *rxq);
27 static int enetc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
28 uint16_t nb_tx_desc, unsigned int socket_id,
29 const struct rte_eth_txconf *tx_conf);
30 static void enetc_tx_queue_release(void *txq);
31 static const uint32_t *enetc_supported_ptypes_get(struct rte_eth_dev *dev);
34 * The set of PCI devices this driver supports
36 static const struct rte_pci_id pci_id_enetc_map[] = {
37 { RTE_PCI_DEVICE(PCI_VENDOR_ID_FREESCALE, ENETC_DEV_ID) },
38 { RTE_PCI_DEVICE(PCI_VENDOR_ID_FREESCALE, ENETC_DEV_ID_VF) },
39 { .vendor_id = 0, /* sentinel */ },
42 /* Features supported by this driver */
43 static const struct eth_dev_ops enetc_ops = {
44 .dev_configure = enetc_dev_configure,
45 .dev_start = enetc_dev_start,
46 .dev_stop = enetc_dev_stop,
47 .dev_close = enetc_dev_close,
48 .link_update = enetc_link_update,
49 .dev_infos_get = enetc_dev_infos_get,
50 .rx_queue_setup = enetc_rx_queue_setup,
51 .rx_queue_release = enetc_rx_queue_release,
52 .tx_queue_setup = enetc_tx_queue_setup,
53 .tx_queue_release = enetc_tx_queue_release,
54 .dev_supported_ptypes_get = enetc_supported_ptypes_get,
58 * Initialisation of the enetc device
61 * - Pointer to the structure rte_eth_dev
65 * - On failure, negative value.
68 enetc_dev_init(struct rte_eth_dev *eth_dev)
71 struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
72 struct enetc_eth_hw *hw =
73 ENETC_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
75 PMD_INIT_FUNC_TRACE();
76 eth_dev->dev_ops = &enetc_ops;
77 eth_dev->rx_pkt_burst = &enetc_recv_pkts;
78 eth_dev->tx_pkt_burst = &enetc_xmit_pkts;
80 /* Retrieving and storing the HW base address of device */
81 hw->hw.reg = (void *)pci_dev->mem_resource[0].addr;
82 hw->device_id = pci_dev->id.device_id;
84 error = enetc_hardware_init(hw);
86 ENETC_PMD_ERR("Hardware initialization failed");
90 /* Allocate memory for storing MAC addresses */
91 eth_dev->data->mac_addrs = rte_zmalloc("enetc_eth", ETHER_ADDR_LEN, 0);
92 if (!eth_dev->data->mac_addrs) {
93 ENETC_PMD_ERR("Failed to allocate %d bytes needed to "
94 "store MAC addresses",
100 /* Copy the permanent MAC address */
101 ether_addr_copy((struct ether_addr *)hw->mac.addr,
102 ð_dev->data->mac_addrs[0]);
104 ENETC_PMD_DEBUG("port_id %d vendorID=0x%x deviceID=0x%x",
105 eth_dev->data->port_id, pci_dev->id.vendor_id,
106 pci_dev->id.device_id);
111 enetc_dev_uninit(struct rte_eth_dev *eth_dev __rte_unused)
113 PMD_INIT_FUNC_TRACE();
118 enetc_dev_configure(struct rte_eth_dev *dev __rte_unused)
120 PMD_INIT_FUNC_TRACE();
125 enetc_dev_start(struct rte_eth_dev *dev)
127 struct enetc_eth_hw *hw =
128 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
131 PMD_INIT_FUNC_TRACE();
132 val = ENETC_REG_READ(ENETC_GET_HW_ADDR(hw->hw.port,
134 ENETC_REG_WRITE(ENETC_GET_HW_ADDR(hw->hw.port, ENETC_PM0_CMD_CFG),
135 val | ENETC_PM0_TX_EN | ENETC_PM0_RX_EN);
138 val = ENETC_REG_READ(ENETC_GET_HW_ADDR(hw->hw.port, ENETC_PMR));
139 ENETC_REG_WRITE(ENETC_GET_HW_ADDR(hw->hw.port, ENETC_PMR),
146 enetc_dev_stop(struct rte_eth_dev *dev)
148 struct enetc_eth_hw *hw =
149 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
152 PMD_INIT_FUNC_TRACE();
154 val = ENETC_REG_READ(ENETC_GET_HW_ADDR(hw->hw.port, ENETC_PMR));
155 ENETC_REG_WRITE(ENETC_GET_HW_ADDR(hw->hw.port, ENETC_PMR),
156 val & (~ENETC_PMR_EN));
158 val = ENETC_REG_READ(ENETC_GET_HW_ADDR(hw->hw.port,
160 ENETC_REG_WRITE(ENETC_GET_HW_ADDR(hw->hw.port, ENETC_PM0_CMD_CFG),
161 val & (~(ENETC_PM0_TX_EN | ENETC_PM0_RX_EN)));
165 enetc_dev_close(struct rte_eth_dev *dev)
169 PMD_INIT_FUNC_TRACE();
172 for (i = 0; i < dev->data->nb_rx_queues; i++) {
173 enetc_rx_queue_release(dev->data->rx_queues[i]);
174 dev->data->rx_queues[i] = NULL;
176 dev->data->nb_rx_queues = 0;
178 for (i = 0; i < dev->data->nb_tx_queues; i++) {
179 enetc_tx_queue_release(dev->data->tx_queues[i]);
180 dev->data->tx_queues[i] = NULL;
182 dev->data->nb_tx_queues = 0;
185 static const uint32_t *
186 enetc_supported_ptypes_get(struct rte_eth_dev *dev __rte_unused)
188 static const uint32_t ptypes[] = {
202 /* return 0 means link status changed, -1 means not changed */
204 enetc_link_update(struct rte_eth_dev *dev, int wait_to_complete __rte_unused)
206 struct enetc_eth_hw *hw =
207 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
208 struct rte_eth_link link;
211 PMD_INIT_FUNC_TRACE();
213 memset(&link, 0, sizeof(link));
215 status = ENETC_REG_READ(ENETC_GET_HW_ADDR(hw->hw.port,
218 if (status & ENETC_LINK_MODE)
219 link.link_duplex = ETH_LINK_FULL_DUPLEX;
221 link.link_duplex = ETH_LINK_HALF_DUPLEX;
223 if (status & ENETC_LINK_STATUS)
224 link.link_status = ETH_LINK_UP;
226 link.link_status = ETH_LINK_DOWN;
228 switch (status & ENETC_LINK_SPEED_MASK) {
229 case ENETC_LINK_SPEED_1G:
230 link.link_speed = ETH_SPEED_NUM_1G;
233 case ENETC_LINK_SPEED_100M:
234 link.link_speed = ETH_SPEED_NUM_100M;
238 case ENETC_LINK_SPEED_10M:
239 link.link_speed = ETH_SPEED_NUM_10M;
242 return rte_eth_linkstatus_set(dev, &link);
246 enetc_hardware_init(struct enetc_eth_hw *hw)
250 PMD_INIT_FUNC_TRACE();
251 /* Calculating and storing the base HW addresses */
252 hw->hw.port = (void *)((size_t)hw->hw.reg + ENETC_PORT_BASE);
253 hw->hw.global = (void *)((size_t)hw->hw.reg + ENETC_GLOBAL_BASE);
255 /* Enabling Station Interface */
256 ENETC_REG_WRITE(ENETC_GET_HW_ADDR(hw->hw.reg, ENETC_SIMR),
259 /* Setting to accept broadcast packets for each inetrface */
260 psipmr |= ENETC_PSIPMR_SET_UP(0) | ENETC_PSIPMR_SET_MP(0) |
261 ENETC_PSIPMR_SET_VLAN_MP(0);
262 psipmr |= ENETC_PSIPMR_SET_UP(1) | ENETC_PSIPMR_SET_MP(1) |
263 ENETC_PSIPMR_SET_VLAN_MP(1);
264 psipmr |= ENETC_PSIPMR_SET_UP(2) | ENETC_PSIPMR_SET_MP(2) |
265 ENETC_PSIPMR_SET_VLAN_MP(2);
267 ENETC_REG_WRITE(ENETC_GET_HW_ADDR(hw->hw.port, ENETC_PSIPMR),
270 /* Enabling broadcast address */
271 ENETC_REG_WRITE(ENETC_GET_HW_ADDR(hw->hw.port, ENETC_PSIPMAR0(0)),
273 ENETC_REG_WRITE(ENETC_GET_HW_ADDR(hw->hw.port, ENETC_PSIPMAR1(0)),
280 enetc_dev_infos_get(struct rte_eth_dev *dev __rte_unused,
281 struct rte_eth_dev_info *dev_info)
283 PMD_INIT_FUNC_TRACE();
284 dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
285 .nb_max = MAX_BD_COUNT,
286 .nb_min = MIN_BD_COUNT,
287 .nb_align = BD_ALIGN,
289 dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
290 .nb_max = MAX_BD_COUNT,
291 .nb_min = MIN_BD_COUNT,
292 .nb_align = BD_ALIGN,
294 dev_info->max_rx_queues = MAX_RX_RINGS;
295 dev_info->max_tx_queues = MAX_TX_RINGS;
296 dev_info->max_rx_pktlen = 1500;
300 enetc_alloc_txbdr(struct enetc_bdr *txr, uint16_t nb_desc)
304 size = nb_desc * sizeof(struct enetc_swbd);
305 txr->q_swbd = rte_malloc(NULL, size, RTE_CACHE_LINE_SIZE);
306 if (txr->q_swbd == NULL)
309 size = nb_desc * sizeof(struct enetc_tx_bd);
310 txr->bd_base = rte_malloc(NULL, size, RTE_CACHE_LINE_SIZE);
311 if (txr->bd_base == NULL) {
312 rte_free(txr->q_swbd);
317 txr->bd_count = nb_desc;
318 txr->next_to_clean = 0;
319 txr->next_to_use = 0;
325 enetc_free_bdr(struct enetc_bdr *rxr)
327 rte_free(rxr->q_swbd);
328 rte_free(rxr->bd_base);
334 enetc_setup_txbdr(struct enetc_hw *hw, struct enetc_bdr *tx_ring)
336 int idx = tx_ring->index;
340 base_addr = (uintptr_t)tx_ring->bd_base;
341 enetc_txbdr_wr(hw, idx, ENETC_TBBAR0,
342 lower_32_bits((uint64_t)base_addr));
343 enetc_txbdr_wr(hw, idx, ENETC_TBBAR1,
344 upper_32_bits((uint64_t)base_addr));
345 enetc_txbdr_wr(hw, idx, ENETC_TBLENR,
346 ENETC_RTBLENR_LEN(tx_ring->bd_count));
348 tbmr = ENETC_TBMR_EN;
350 enetc_txbdr_wr(hw, idx, ENETC_TBMR, tbmr);
351 enetc_txbdr_wr(hw, idx, ENETC_TBCIR, 0);
352 enetc_txbdr_wr(hw, idx, ENETC_TBCISR, 0);
353 tx_ring->tcir = (void *)((size_t)hw->reg +
354 ENETC_BDR(TX, idx, ENETC_TBCIR));
355 tx_ring->tcisr = (void *)((size_t)hw->reg +
356 ENETC_BDR(TX, idx, ENETC_TBCISR));
360 enetc_alloc_tx_resources(struct rte_eth_dev *dev,
365 struct enetc_bdr *tx_ring;
366 struct rte_eth_dev_data *data = dev->data;
367 struct enetc_eth_adapter *priv =
368 ENETC_DEV_PRIVATE(data->dev_private);
370 tx_ring = rte_zmalloc(NULL, sizeof(struct enetc_bdr), 0);
371 if (tx_ring == NULL) {
372 ENETC_PMD_ERR("Failed to allocate TX ring memory");
377 err = enetc_alloc_txbdr(tx_ring, nb_desc);
381 tx_ring->index = queue_idx;
383 enetc_setup_txbdr(&priv->hw.hw, tx_ring);
384 data->tx_queues[queue_idx] = tx_ring;
394 enetc_tx_queue_setup(struct rte_eth_dev *dev,
397 unsigned int socket_id __rte_unused,
398 const struct rte_eth_txconf *tx_conf __rte_unused)
402 PMD_INIT_FUNC_TRACE();
403 if (nb_desc > MAX_BD_COUNT)
406 err = enetc_alloc_tx_resources(dev, queue_idx, nb_desc);
412 enetc_tx_queue_release(void *txq)
417 struct enetc_bdr *tx_ring = (struct enetc_bdr *)txq;
418 struct enetc_eth_hw *eth_hw =
419 ENETC_DEV_PRIVATE_TO_HW(tx_ring->ndev->data->dev_private);
421 struct enetc_swbd *tx_swbd;
425 /* Disable the ring */
427 val = enetc_txbdr_rd(hw, tx_ring->index, ENETC_TBMR);
428 val &= (~ENETC_TBMR_EN);
429 enetc_txbdr_wr(hw, tx_ring->index, ENETC_TBMR, val);
432 i = tx_ring->next_to_clean;
433 tx_swbd = &tx_ring->q_swbd[i];
434 while (tx_swbd->buffer_addr != NULL) {
435 rte_pktmbuf_free(tx_swbd->buffer_addr);
436 tx_swbd->buffer_addr = NULL;
439 if (unlikely(i == tx_ring->bd_count)) {
441 tx_swbd = &tx_ring->q_swbd[i];
445 enetc_free_bdr(tx_ring);
450 enetc_alloc_rxbdr(struct enetc_bdr *rxr,
455 size = nb_rx_desc * sizeof(struct enetc_swbd);
456 rxr->q_swbd = rte_malloc(NULL, size, RTE_CACHE_LINE_SIZE);
457 if (rxr->q_swbd == NULL)
460 size = nb_rx_desc * sizeof(union enetc_rx_bd);
461 rxr->bd_base = rte_malloc(NULL, size, RTE_CACHE_LINE_SIZE);
462 if (rxr->bd_base == NULL) {
463 rte_free(rxr->q_swbd);
468 rxr->bd_count = nb_rx_desc;
469 rxr->next_to_clean = 0;
470 rxr->next_to_use = 0;
471 rxr->next_to_alloc = 0;
477 enetc_setup_rxbdr(struct enetc_hw *hw, struct enetc_bdr *rx_ring,
478 struct rte_mempool *mb_pool)
480 int idx = rx_ring->index;
484 base_addr = (uintptr_t)rx_ring->bd_base;
485 enetc_rxbdr_wr(hw, idx, ENETC_RBBAR0,
486 lower_32_bits((uint64_t)base_addr));
487 enetc_rxbdr_wr(hw, idx, ENETC_RBBAR1,
488 upper_32_bits((uint64_t)base_addr));
489 enetc_rxbdr_wr(hw, idx, ENETC_RBLENR,
490 ENETC_RTBLENR_LEN(rx_ring->bd_count));
492 rx_ring->mb_pool = mb_pool;
494 enetc_rxbdr_wr(hw, idx, ENETC_RBMR, ENETC_RBMR_EN);
495 enetc_rxbdr_wr(hw, idx, ENETC_RBPIR, 0);
496 rx_ring->rcir = (void *)((size_t)hw->reg +
497 ENETC_BDR(RX, idx, ENETC_RBCIR));
498 enetc_refill_rx_ring(rx_ring, (enetc_bd_unused(rx_ring)));
499 buf_size = (uint16_t)(rte_pktmbuf_data_room_size(rx_ring->mb_pool) -
500 RTE_PKTMBUF_HEADROOM);
501 enetc_rxbdr_wr(hw, idx, ENETC_RBBSR, buf_size);
505 enetc_alloc_rx_resources(struct rte_eth_dev *dev,
506 uint16_t rx_queue_id,
508 struct rte_mempool *mb_pool)
511 struct enetc_bdr *rx_ring;
512 struct rte_eth_dev_data *data = dev->data;
513 struct enetc_eth_adapter *adapter =
514 ENETC_DEV_PRIVATE(data->dev_private);
516 rx_ring = rte_zmalloc(NULL, sizeof(struct enetc_bdr), 0);
517 if (rx_ring == NULL) {
518 ENETC_PMD_ERR("Failed to allocate RX ring memory");
523 err = enetc_alloc_rxbdr(rx_ring, nb_rx_desc);
527 rx_ring->index = rx_queue_id;
529 enetc_setup_rxbdr(&adapter->hw.hw, rx_ring, mb_pool);
530 data->rx_queues[rx_queue_id] = rx_ring;
540 enetc_rx_queue_setup(struct rte_eth_dev *dev,
541 uint16_t rx_queue_id,
543 unsigned int socket_id __rte_unused,
544 const struct rte_eth_rxconf *rx_conf __rte_unused,
545 struct rte_mempool *mb_pool)
549 PMD_INIT_FUNC_TRACE();
550 if (nb_rx_desc > MAX_BD_COUNT)
553 err = enetc_alloc_rx_resources(dev, rx_queue_id,
561 enetc_rx_queue_release(void *rxq)
566 struct enetc_bdr *rx_ring = (struct enetc_bdr *)rxq;
567 struct enetc_eth_hw *eth_hw =
568 ENETC_DEV_PRIVATE_TO_HW(rx_ring->ndev->data->dev_private);
569 struct enetc_swbd *q_swbd;
574 /* Disable the ring */
576 val = enetc_rxbdr_rd(hw, rx_ring->index, ENETC_RBMR);
577 val &= (~ENETC_RBMR_EN);
578 enetc_rxbdr_wr(hw, rx_ring->index, ENETC_RBMR, val);
581 i = rx_ring->next_to_clean;
582 q_swbd = &rx_ring->q_swbd[i];
583 while (i != rx_ring->next_to_use) {
584 rte_pktmbuf_free(q_swbd->buffer_addr);
585 q_swbd->buffer_addr = NULL;
588 if (unlikely(i == rx_ring->bd_count)) {
590 q_swbd = &rx_ring->q_swbd[i];
594 enetc_free_bdr(rx_ring);
599 enetc_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
600 struct rte_pci_device *pci_dev)
602 return rte_eth_dev_pci_generic_probe(pci_dev,
603 sizeof(struct enetc_eth_adapter),
608 enetc_pci_remove(struct rte_pci_device *pci_dev)
610 return rte_eth_dev_pci_generic_remove(pci_dev, enetc_dev_uninit);
613 static struct rte_pci_driver rte_enetc_pmd = {
614 .id_table = pci_id_enetc_map,
615 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_IOVA_AS_VA,
616 .probe = enetc_pci_probe,
617 .remove = enetc_pci_remove,
620 RTE_PMD_REGISTER_PCI(net_enetc, rte_enetc_pmd);
621 RTE_PMD_REGISTER_PCI_TABLE(net_enetc, pci_id_enetc_map);
622 RTE_PMD_REGISTER_KMOD_DEP(net_enetc, "* vfio-pci");
624 RTE_INIT(enetc_pmd_init_log)
626 enetc_logtype_pmd = rte_log_register("pmd.net.enetc");
627 if (enetc_logtype_pmd >= 0)
628 rte_log_set_level(enetc_logtype_pmd, RTE_LOG_NOTICE);