1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright (c) 2014-2018 Netronome Systems, Inc.
5 * Small portions derived from code Copyright(c) 2010-2015 Intel Corporation.
9 * vim:shiftwidth=8:noexpandtab
11 * @file dpdk/pmd/nfp_net.c
13 * Netronome vNIC DPDK Poll-Mode Driver: Main entry point
16 #include <rte_byteorder.h>
17 #include <rte_common.h>
19 #include <rte_debug.h>
20 #include <rte_ethdev_driver.h>
21 #include <rte_ethdev_pci.h>
23 #include <rte_ether.h>
24 #include <rte_malloc.h>
25 #include <rte_memzone.h>
26 #include <rte_mempool.h>
27 #include <rte_version.h>
28 #include <rte_string_fns.h>
29 #include <rte_alarm.h>
30 #include <rte_spinlock.h>
31 #include <rte_service_component.h>
33 #include "nfpcore/nfp_cpp.h"
34 #include "nfpcore/nfp_nffw.h"
35 #include "nfpcore/nfp_hwinfo.h"
36 #include "nfpcore/nfp_mip.h"
37 #include "nfpcore/nfp_rtsym.h"
38 #include "nfpcore/nfp_nsp.h"
40 #include "nfp_net_pmd.h"
41 #include "nfp_net_logs.h"
42 #include "nfp_net_ctrl.h"
44 #include <sys/types.h>
45 #include <sys/socket.h>
49 #include <sys/ioctl.h>
53 static void nfp_net_close(struct rte_eth_dev *dev);
54 static int nfp_net_configure(struct rte_eth_dev *dev);
55 static void nfp_net_dev_interrupt_handler(void *param);
56 static void nfp_net_dev_interrupt_delayed_handler(void *param);
57 static int nfp_net_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
58 static int nfp_net_infos_get(struct rte_eth_dev *dev,
59 struct rte_eth_dev_info *dev_info);
60 static int nfp_net_init(struct rte_eth_dev *eth_dev);
61 static int nfp_net_link_update(struct rte_eth_dev *dev, int wait_to_complete);
62 static int nfp_net_promisc_enable(struct rte_eth_dev *dev);
63 static int nfp_net_promisc_disable(struct rte_eth_dev *dev);
64 static int nfp_net_rx_fill_freelist(struct nfp_net_rxq *rxq);
65 static uint32_t nfp_net_rx_queue_count(struct rte_eth_dev *dev,
67 static uint16_t nfp_net_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
69 static void nfp_net_rx_queue_release(void *rxq);
70 static int nfp_net_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
71 uint16_t nb_desc, unsigned int socket_id,
72 const struct rte_eth_rxconf *rx_conf,
73 struct rte_mempool *mp);
74 static int nfp_net_tx_free_bufs(struct nfp_net_txq *txq);
75 static void nfp_net_tx_queue_release(void *txq);
76 static int nfp_net_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
77 uint16_t nb_desc, unsigned int socket_id,
78 const struct rte_eth_txconf *tx_conf);
79 static int nfp_net_start(struct rte_eth_dev *dev);
80 static int nfp_net_stats_get(struct rte_eth_dev *dev,
81 struct rte_eth_stats *stats);
82 static int nfp_net_stats_reset(struct rte_eth_dev *dev);
83 static void nfp_net_stop(struct rte_eth_dev *dev);
84 static uint16_t nfp_net_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
87 static int nfp_net_rss_config_default(struct rte_eth_dev *dev);
88 static int nfp_net_rss_hash_update(struct rte_eth_dev *dev,
89 struct rte_eth_rss_conf *rss_conf);
90 static int nfp_net_rss_reta_write(struct rte_eth_dev *dev,
91 struct rte_eth_rss_reta_entry64 *reta_conf,
93 static int nfp_net_rss_hash_write(struct rte_eth_dev *dev,
94 struct rte_eth_rss_conf *rss_conf);
95 static int nfp_set_mac_addr(struct rte_eth_dev *dev,
96 struct rte_ether_addr *mac_addr);
98 /* The offset of the queue controller queues in the PCIe Target */
99 #define NFP_PCIE_QUEUE(_q) (0x80000 + (NFP_QCP_QUEUE_ADDR_SZ * ((_q) & 0xff)))
101 /* Maximum value which can be added to a queue with one transaction */
102 #define NFP_QCP_MAX_ADD 0x7f
104 #define RTE_MBUF_DMA_ADDR_DEFAULT(mb) \
105 (uint64_t)((mb)->buf_iova + RTE_PKTMBUF_HEADROOM)
107 /* nfp_qcp_ptr - Read or Write Pointer of a queue */
109 NFP_QCP_READ_PTR = 0,
114 * nfp_qcp_ptr_add - Add the value to the selected pointer of a queue
115 * @q: Base address for queue structure
116 * @ptr: Add to the Read or Write pointer
117 * @val: Value to add to the queue pointer
119 * If @val is greater than @NFP_QCP_MAX_ADD multiple writes are performed.
122 nfp_qcp_ptr_add(uint8_t *q, enum nfp_qcp_ptr ptr, uint32_t val)
126 if (ptr == NFP_QCP_READ_PTR)
127 off = NFP_QCP_QUEUE_ADD_RPTR;
129 off = NFP_QCP_QUEUE_ADD_WPTR;
131 while (val > NFP_QCP_MAX_ADD) {
132 nn_writel(rte_cpu_to_le_32(NFP_QCP_MAX_ADD), q + off);
133 val -= NFP_QCP_MAX_ADD;
136 nn_writel(rte_cpu_to_le_32(val), q + off);
140 * nfp_qcp_read - Read the current Read/Write pointer value for a queue
141 * @q: Base address for queue structure
142 * @ptr: Read or Write pointer
144 static inline uint32_t
145 nfp_qcp_read(uint8_t *q, enum nfp_qcp_ptr ptr)
150 if (ptr == NFP_QCP_READ_PTR)
151 off = NFP_QCP_QUEUE_STS_LO;
153 off = NFP_QCP_QUEUE_STS_HI;
155 val = rte_cpu_to_le_32(nn_readl(q + off));
157 if (ptr == NFP_QCP_READ_PTR)
158 return val & NFP_QCP_QUEUE_STS_LO_READPTR_mask;
160 return val & NFP_QCP_QUEUE_STS_HI_WRITEPTR_mask;
164 * Functions to read/write from/to Config BAR
165 * Performs any endian conversion necessary.
167 static inline uint8_t
168 nn_cfg_readb(struct nfp_net_hw *hw, int off)
170 return nn_readb(hw->ctrl_bar + off);
174 nn_cfg_writeb(struct nfp_net_hw *hw, int off, uint8_t val)
176 nn_writeb(val, hw->ctrl_bar + off);
179 static inline uint32_t
180 nn_cfg_readl(struct nfp_net_hw *hw, int off)
182 return rte_le_to_cpu_32(nn_readl(hw->ctrl_bar + off));
186 nn_cfg_writel(struct nfp_net_hw *hw, int off, uint32_t val)
188 nn_writel(rte_cpu_to_le_32(val), hw->ctrl_bar + off);
191 static inline uint64_t
192 nn_cfg_readq(struct nfp_net_hw *hw, int off)
194 return rte_le_to_cpu_64(nn_readq(hw->ctrl_bar + off));
198 nn_cfg_writeq(struct nfp_net_hw *hw, int off, uint64_t val)
200 nn_writeq(rte_cpu_to_le_64(val), hw->ctrl_bar + off);
204 nfp_net_rx_queue_release_mbufs(struct nfp_net_rxq *rxq)
208 if (rxq->rxbufs == NULL)
211 for (i = 0; i < rxq->rx_count; i++) {
212 if (rxq->rxbufs[i].mbuf) {
213 rte_pktmbuf_free_seg(rxq->rxbufs[i].mbuf);
214 rxq->rxbufs[i].mbuf = NULL;
220 nfp_net_rx_queue_release(void *rx_queue)
222 struct nfp_net_rxq *rxq = rx_queue;
225 nfp_net_rx_queue_release_mbufs(rxq);
226 rte_free(rxq->rxbufs);
232 nfp_net_reset_rx_queue(struct nfp_net_rxq *rxq)
234 nfp_net_rx_queue_release_mbufs(rxq);
240 nfp_net_tx_queue_release_mbufs(struct nfp_net_txq *txq)
244 if (txq->txbufs == NULL)
247 for (i = 0; i < txq->tx_count; i++) {
248 if (txq->txbufs[i].mbuf) {
249 rte_pktmbuf_free_seg(txq->txbufs[i].mbuf);
250 txq->txbufs[i].mbuf = NULL;
256 nfp_net_tx_queue_release(void *tx_queue)
258 struct nfp_net_txq *txq = tx_queue;
261 nfp_net_tx_queue_release_mbufs(txq);
262 rte_free(txq->txbufs);
268 nfp_net_reset_tx_queue(struct nfp_net_txq *txq)
270 nfp_net_tx_queue_release_mbufs(txq);
276 __nfp_net_reconfig(struct nfp_net_hw *hw, uint32_t update)
280 struct timespec wait;
282 PMD_DRV_LOG(DEBUG, "Writing to the configuration queue (%p)...",
285 if (hw->qcp_cfg == NULL)
286 rte_panic("Bad configuration queue pointer\n");
288 nfp_qcp_ptr_add(hw->qcp_cfg, NFP_QCP_WRITE_PTR, 1);
291 wait.tv_nsec = 1000000;
293 PMD_DRV_LOG(DEBUG, "Polling for update ack...");
295 /* Poll update field, waiting for NFP to ack the config */
296 for (cnt = 0; ; cnt++) {
297 new = nn_cfg_readl(hw, NFP_NET_CFG_UPDATE);
300 if (new & NFP_NET_CFG_UPDATE_ERR) {
301 PMD_INIT_LOG(ERR, "Reconfig error: 0x%08x", new);
304 if (cnt >= NFP_NET_POLL_TIMEOUT) {
305 PMD_INIT_LOG(ERR, "Reconfig timeout for 0x%08x after"
306 " %dms", update, cnt);
307 rte_panic("Exiting\n");
309 nanosleep(&wait, 0); /* waiting for a 1ms */
311 PMD_DRV_LOG(DEBUG, "Ack DONE");
316 * Reconfigure the NIC
317 * @nn: device to reconfigure
318 * @ctrl: The value for the ctrl field in the BAR config
319 * @update: The value for the update field in the BAR config
321 * Write the update word to the BAR and ping the reconfig queue. Then poll
322 * until the firmware has acknowledged the update by zeroing the update word.
325 nfp_net_reconfig(struct nfp_net_hw *hw, uint32_t ctrl, uint32_t update)
329 PMD_DRV_LOG(DEBUG, "nfp_net_reconfig: ctrl=%08x update=%08x",
332 rte_spinlock_lock(&hw->reconfig_lock);
334 nn_cfg_writel(hw, NFP_NET_CFG_CTRL, ctrl);
335 nn_cfg_writel(hw, NFP_NET_CFG_UPDATE, update);
339 err = __nfp_net_reconfig(hw, update);
341 rte_spinlock_unlock(&hw->reconfig_lock);
347 * Reconfig errors imply situations where they can be handled.
348 * Otherwise, rte_panic is called inside __nfp_net_reconfig
350 PMD_INIT_LOG(ERR, "Error nfp_net reconfig for ctrl: %x update: %x",
356 * Configure an Ethernet device. This function must be invoked first
357 * before any other function in the Ethernet API. This function can
358 * also be re-invoked when a device is in the stopped state.
361 nfp_net_configure(struct rte_eth_dev *dev)
363 struct rte_eth_conf *dev_conf;
364 struct rte_eth_rxmode *rxmode;
365 struct rte_eth_txmode *txmode;
366 struct nfp_net_hw *hw;
368 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
371 * A DPDK app sends info about how many queues to use and how
372 * those queues need to be configured. This is used by the
373 * DPDK core and it makes sure no more queues than those
374 * advertised by the driver are requested. This function is
375 * called after that internal process
378 PMD_INIT_LOG(DEBUG, "Configure");
380 dev_conf = &dev->data->dev_conf;
381 rxmode = &dev_conf->rxmode;
382 txmode = &dev_conf->txmode;
384 if (rxmode->mq_mode & ETH_MQ_RX_RSS_FLAG)
385 rxmode->offloads |= DEV_RX_OFFLOAD_RSS_HASH;
387 /* Checking TX mode */
388 if (txmode->mq_mode) {
389 PMD_INIT_LOG(INFO, "TX mq_mode DCB and VMDq not supported");
393 /* Checking RX mode */
394 if (rxmode->mq_mode & ETH_MQ_RX_RSS &&
395 !(hw->cap & NFP_NET_CFG_CTRL_RSS)) {
396 PMD_INIT_LOG(INFO, "RSS not supported");
404 nfp_net_enable_queues(struct rte_eth_dev *dev)
406 struct nfp_net_hw *hw;
407 uint64_t enabled_queues = 0;
410 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
412 /* Enabling the required TX queues in the device */
413 for (i = 0; i < dev->data->nb_tx_queues; i++)
414 enabled_queues |= (1 << i);
416 nn_cfg_writeq(hw, NFP_NET_CFG_TXRS_ENABLE, enabled_queues);
420 /* Enabling the required RX queues in the device */
421 for (i = 0; i < dev->data->nb_rx_queues; i++)
422 enabled_queues |= (1 << i);
424 nn_cfg_writeq(hw, NFP_NET_CFG_RXRS_ENABLE, enabled_queues);
428 nfp_net_disable_queues(struct rte_eth_dev *dev)
430 struct nfp_net_hw *hw;
431 uint32_t new_ctrl, update = 0;
433 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
435 nn_cfg_writeq(hw, NFP_NET_CFG_TXRS_ENABLE, 0);
436 nn_cfg_writeq(hw, NFP_NET_CFG_RXRS_ENABLE, 0);
438 new_ctrl = hw->ctrl & ~NFP_NET_CFG_CTRL_ENABLE;
439 update = NFP_NET_CFG_UPDATE_GEN | NFP_NET_CFG_UPDATE_RING |
440 NFP_NET_CFG_UPDATE_MSIX;
442 if (hw->cap & NFP_NET_CFG_CTRL_RINGCFG)
443 new_ctrl &= ~NFP_NET_CFG_CTRL_RINGCFG;
445 /* If an error when reconfig we avoid to change hw state */
446 if (nfp_net_reconfig(hw, new_ctrl, update) < 0)
453 nfp_net_rx_freelist_setup(struct rte_eth_dev *dev)
457 for (i = 0; i < dev->data->nb_rx_queues; i++) {
458 if (nfp_net_rx_fill_freelist(dev->data->rx_queues[i]) < 0)
465 nfp_net_params_setup(struct nfp_net_hw *hw)
467 nn_cfg_writel(hw, NFP_NET_CFG_MTU, hw->mtu);
468 nn_cfg_writel(hw, NFP_NET_CFG_FLBUFSZ, hw->flbufsz);
472 nfp_net_cfg_queue_setup(struct nfp_net_hw *hw)
474 hw->qcp_cfg = hw->tx_bar + NFP_QCP_QUEUE_ADDR_SZ;
477 #define ETH_ADDR_LEN 6
480 nfp_eth_copy_mac(uint8_t *dst, const uint8_t *src)
484 for (i = 0; i < ETH_ADDR_LEN; i++)
489 nfp_net_pf_read_mac(struct nfp_net_hw *hw, int port)
491 struct nfp_eth_table *nfp_eth_table;
493 nfp_eth_table = nfp_eth_read_ports(hw->cpp);
495 * hw points to port0 private data. We need hw now pointing to
499 nfp_eth_copy_mac((uint8_t *)&hw->mac_addr,
500 (uint8_t *)&nfp_eth_table->ports[port].mac_addr);
507 nfp_net_vf_read_mac(struct nfp_net_hw *hw)
511 tmp = rte_be_to_cpu_32(nn_cfg_readl(hw, NFP_NET_CFG_MACADDR));
512 memcpy(&hw->mac_addr[0], &tmp, 4);
514 tmp = rte_be_to_cpu_32(nn_cfg_readl(hw, NFP_NET_CFG_MACADDR + 4));
515 memcpy(&hw->mac_addr[4], &tmp, 2);
519 nfp_net_write_mac(struct nfp_net_hw *hw, uint8_t *mac)
521 uint32_t mac0 = *(uint32_t *)mac;
524 nn_writel(rte_cpu_to_be_32(mac0), hw->ctrl_bar + NFP_NET_CFG_MACADDR);
527 mac1 = *(uint16_t *)mac;
528 nn_writew(rte_cpu_to_be_16(mac1),
529 hw->ctrl_bar + NFP_NET_CFG_MACADDR + 6);
533 nfp_set_mac_addr(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr)
535 struct nfp_net_hw *hw;
536 uint32_t update, ctrl;
538 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
539 if ((hw->ctrl & NFP_NET_CFG_CTRL_ENABLE) &&
540 !(hw->cap & NFP_NET_CFG_CTRL_LIVE_ADDR)) {
541 PMD_INIT_LOG(INFO, "MAC address unable to change when"
546 if ((hw->ctrl & NFP_NET_CFG_CTRL_ENABLE) &&
547 !(hw->cap & NFP_NET_CFG_CTRL_LIVE_ADDR))
550 /* Writing new MAC to the specific port BAR address */
551 nfp_net_write_mac(hw, (uint8_t *)mac_addr);
553 /* Signal the NIC about the change */
554 update = NFP_NET_CFG_UPDATE_MACADDR;
556 if ((hw->ctrl & NFP_NET_CFG_CTRL_ENABLE) &&
557 (hw->cap & NFP_NET_CFG_CTRL_LIVE_ADDR))
558 ctrl |= NFP_NET_CFG_CTRL_LIVE_ADDR;
559 if (nfp_net_reconfig(hw, ctrl, update) < 0) {
560 PMD_INIT_LOG(INFO, "MAC address update failed");
567 nfp_configure_rx_interrupt(struct rte_eth_dev *dev,
568 struct rte_intr_handle *intr_handle)
570 struct nfp_net_hw *hw;
573 if (!intr_handle->intr_vec) {
574 intr_handle->intr_vec =
575 rte_zmalloc("intr_vec",
576 dev->data->nb_rx_queues * sizeof(int), 0);
577 if (!intr_handle->intr_vec) {
578 PMD_INIT_LOG(ERR, "Failed to allocate %d rx_queues"
579 " intr_vec", dev->data->nb_rx_queues);
584 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
586 if (intr_handle->type == RTE_INTR_HANDLE_UIO) {
587 PMD_INIT_LOG(INFO, "VF: enabling RX interrupt with UIO");
588 /* UIO just supports one queue and no LSC*/
589 nn_cfg_writeb(hw, NFP_NET_CFG_RXR_VEC(0), 0);
590 intr_handle->intr_vec[0] = 0;
592 PMD_INIT_LOG(INFO, "VF: enabling RX interrupt with VFIO");
593 for (i = 0; i < dev->data->nb_rx_queues; i++) {
595 * The first msix vector is reserved for non
598 nn_cfg_writeb(hw, NFP_NET_CFG_RXR_VEC(i), i + 1);
599 intr_handle->intr_vec[i] = i + 1;
600 PMD_INIT_LOG(DEBUG, "intr_vec[%d]= %d", i,
601 intr_handle->intr_vec[i]);
605 /* Avoiding TX interrupts */
606 hw->ctrl |= NFP_NET_CFG_CTRL_MSIX_TX_OFF;
611 nfp_check_offloads(struct rte_eth_dev *dev)
613 struct nfp_net_hw *hw;
614 struct rte_eth_conf *dev_conf;
615 struct rte_eth_rxmode *rxmode;
616 struct rte_eth_txmode *txmode;
619 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
621 dev_conf = &dev->data->dev_conf;
622 rxmode = &dev_conf->rxmode;
623 txmode = &dev_conf->txmode;
625 if (rxmode->offloads & DEV_RX_OFFLOAD_IPV4_CKSUM) {
626 if (hw->cap & NFP_NET_CFG_CTRL_RXCSUM)
627 ctrl |= NFP_NET_CFG_CTRL_RXCSUM;
630 if (rxmode->offloads & DEV_RX_OFFLOAD_VLAN_STRIP) {
631 if (hw->cap & NFP_NET_CFG_CTRL_RXVLAN)
632 ctrl |= NFP_NET_CFG_CTRL_RXVLAN;
635 if (rxmode->offloads & DEV_RX_OFFLOAD_JUMBO_FRAME)
636 hw->mtu = rxmode->max_rx_pkt_len;
638 if (txmode->offloads & DEV_TX_OFFLOAD_VLAN_INSERT)
639 ctrl |= NFP_NET_CFG_CTRL_TXVLAN;
642 if (hw->cap & NFP_NET_CFG_CTRL_L2BC)
643 ctrl |= NFP_NET_CFG_CTRL_L2BC;
646 if (hw->cap & NFP_NET_CFG_CTRL_L2MC)
647 ctrl |= NFP_NET_CFG_CTRL_L2MC;
649 /* TX checksum offload */
650 if (txmode->offloads & DEV_TX_OFFLOAD_IPV4_CKSUM ||
651 txmode->offloads & DEV_TX_OFFLOAD_UDP_CKSUM ||
652 txmode->offloads & DEV_TX_OFFLOAD_TCP_CKSUM)
653 ctrl |= NFP_NET_CFG_CTRL_TXCSUM;
656 if (txmode->offloads & DEV_TX_OFFLOAD_TCP_TSO) {
657 if (hw->cap & NFP_NET_CFG_CTRL_LSO)
658 ctrl |= NFP_NET_CFG_CTRL_LSO;
660 ctrl |= NFP_NET_CFG_CTRL_LSO2;
664 if (txmode->offloads & DEV_TX_OFFLOAD_MULTI_SEGS)
665 ctrl |= NFP_NET_CFG_CTRL_GATHER;
671 nfp_net_start(struct rte_eth_dev *dev)
673 struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
674 struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
675 uint32_t new_ctrl, update = 0;
676 struct nfp_net_hw *hw;
677 struct rte_eth_conf *dev_conf;
678 struct rte_eth_rxmode *rxmode;
679 uint32_t intr_vector;
682 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
684 PMD_INIT_LOG(DEBUG, "Start");
686 /* Disabling queues just in case... */
687 nfp_net_disable_queues(dev);
689 /* Enabling the required queues in the device */
690 nfp_net_enable_queues(dev);
692 /* check and configure queue intr-vector mapping */
693 if (dev->data->dev_conf.intr_conf.rxq != 0) {
694 if (hw->pf_multiport_enabled) {
695 PMD_INIT_LOG(ERR, "PMD rx interrupt is not supported "
696 "with NFP multiport PF");
699 if (intr_handle->type == RTE_INTR_HANDLE_UIO) {
701 * Better not to share LSC with RX interrupts.
702 * Unregistering LSC interrupt handler
704 rte_intr_callback_unregister(&pci_dev->intr_handle,
705 nfp_net_dev_interrupt_handler, (void *)dev);
707 if (dev->data->nb_rx_queues > 1) {
708 PMD_INIT_LOG(ERR, "PMD rx interrupt only "
709 "supports 1 queue with UIO");
713 intr_vector = dev->data->nb_rx_queues;
714 if (rte_intr_efd_enable(intr_handle, intr_vector))
717 nfp_configure_rx_interrupt(dev, intr_handle);
718 update = NFP_NET_CFG_UPDATE_MSIX;
721 rte_intr_enable(intr_handle);
723 new_ctrl = nfp_check_offloads(dev);
725 /* Writing configuration parameters in the device */
726 nfp_net_params_setup(hw);
728 dev_conf = &dev->data->dev_conf;
729 rxmode = &dev_conf->rxmode;
731 if (rxmode->mq_mode & ETH_MQ_RX_RSS) {
732 nfp_net_rss_config_default(dev);
733 update |= NFP_NET_CFG_UPDATE_RSS;
734 new_ctrl |= NFP_NET_CFG_CTRL_RSS;
738 new_ctrl |= NFP_NET_CFG_CTRL_ENABLE;
740 update |= NFP_NET_CFG_UPDATE_GEN | NFP_NET_CFG_UPDATE_RING;
742 if (hw->cap & NFP_NET_CFG_CTRL_RINGCFG)
743 new_ctrl |= NFP_NET_CFG_CTRL_RINGCFG;
745 nn_cfg_writel(hw, NFP_NET_CFG_CTRL, new_ctrl);
746 if (nfp_net_reconfig(hw, new_ctrl, update) < 0)
750 * Allocating rte mbufs for configured rx queues.
751 * This requires queues being enabled before
753 if (nfp_net_rx_freelist_setup(dev) < 0) {
759 if (rte_eal_process_type() == RTE_PROC_PRIMARY)
760 /* Configure the physical port up */
761 nfp_eth_set_configured(hw->cpp, hw->pf_port_idx, 1);
763 nfp_eth_set_configured(dev->process_private,
773 * An error returned by this function should mean the app
774 * exiting and then the system releasing all the memory
775 * allocated even memory coming from hugepages.
777 * The device could be enabled at this point with some queues
778 * ready for getting packets. This is true if the call to
779 * nfp_net_rx_freelist_setup() succeeds for some queues but
780 * fails for subsequent queues.
782 * This should make the app exiting but better if we tell the
785 nfp_net_disable_queues(dev);
790 /* Stop device: disable rx and tx functions to allow for reconfiguring. */
792 nfp_net_stop(struct rte_eth_dev *dev)
795 struct nfp_net_hw *hw;
797 PMD_INIT_LOG(DEBUG, "Stop");
799 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
801 nfp_net_disable_queues(dev);
804 for (i = 0; i < dev->data->nb_tx_queues; i++) {
805 nfp_net_reset_tx_queue(
806 (struct nfp_net_txq *)dev->data->tx_queues[i]);
809 for (i = 0; i < dev->data->nb_rx_queues; i++) {
810 nfp_net_reset_rx_queue(
811 (struct nfp_net_rxq *)dev->data->rx_queues[i]);
815 if (rte_eal_process_type() == RTE_PROC_PRIMARY)
816 /* Configure the physical port down */
817 nfp_eth_set_configured(hw->cpp, hw->pf_port_idx, 0);
819 nfp_eth_set_configured(dev->process_private,
824 /* Set the link up. */
826 nfp_net_set_link_up(struct rte_eth_dev *dev)
828 struct nfp_net_hw *hw;
830 PMD_DRV_LOG(DEBUG, "Set link up");
832 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
837 if (rte_eal_process_type() == RTE_PROC_PRIMARY)
838 /* Configure the physical port down */
839 return nfp_eth_set_configured(hw->cpp, hw->pf_port_idx, 1);
841 return nfp_eth_set_configured(dev->process_private,
845 /* Set the link down. */
847 nfp_net_set_link_down(struct rte_eth_dev *dev)
849 struct nfp_net_hw *hw;
851 PMD_DRV_LOG(DEBUG, "Set link down");
853 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
858 if (rte_eal_process_type() == RTE_PROC_PRIMARY)
859 /* Configure the physical port down */
860 return nfp_eth_set_configured(hw->cpp, hw->pf_port_idx, 0);
862 return nfp_eth_set_configured(dev->process_private,
866 /* Reset and stop device. The device can not be restarted. */
868 nfp_net_close(struct rte_eth_dev *dev)
870 struct nfp_net_hw *hw;
871 struct rte_pci_device *pci_dev;
874 PMD_INIT_LOG(DEBUG, "Close");
876 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
877 pci_dev = RTE_ETH_DEV_TO_PCI(dev);
880 * We assume that the DPDK application is stopping all the
881 * threads/queues before calling the device close function.
884 nfp_net_disable_queues(dev);
887 for (i = 0; i < dev->data->nb_tx_queues; i++) {
888 nfp_net_reset_tx_queue(
889 (struct nfp_net_txq *)dev->data->tx_queues[i]);
892 for (i = 0; i < dev->data->nb_rx_queues; i++) {
893 nfp_net_reset_rx_queue(
894 (struct nfp_net_rxq *)dev->data->rx_queues[i]);
897 rte_intr_disable(&pci_dev->intr_handle);
898 nn_cfg_writeb(hw, NFP_NET_CFG_LSC, 0xff);
900 /* unregister callback func from eal lib */
901 rte_intr_callback_unregister(&pci_dev->intr_handle,
902 nfp_net_dev_interrupt_handler,
906 * The ixgbe PMD driver disables the pcie master on the
907 * device. The i40e does not...
912 nfp_net_promisc_enable(struct rte_eth_dev *dev)
914 uint32_t new_ctrl, update = 0;
915 struct nfp_net_hw *hw;
918 PMD_DRV_LOG(DEBUG, "Promiscuous mode enable");
920 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
922 if (!(hw->cap & NFP_NET_CFG_CTRL_PROMISC)) {
923 PMD_INIT_LOG(INFO, "Promiscuous mode not supported");
927 if (hw->ctrl & NFP_NET_CFG_CTRL_PROMISC) {
928 PMD_DRV_LOG(INFO, "Promiscuous mode already enabled");
932 new_ctrl = hw->ctrl | NFP_NET_CFG_CTRL_PROMISC;
933 update = NFP_NET_CFG_UPDATE_GEN;
936 * DPDK sets promiscuous mode on just after this call assuming
937 * it can not fail ...
939 ret = nfp_net_reconfig(hw, new_ctrl, update);
949 nfp_net_promisc_disable(struct rte_eth_dev *dev)
951 uint32_t new_ctrl, update = 0;
952 struct nfp_net_hw *hw;
955 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
957 if ((hw->ctrl & NFP_NET_CFG_CTRL_PROMISC) == 0) {
958 PMD_DRV_LOG(INFO, "Promiscuous mode already disabled");
962 new_ctrl = hw->ctrl & ~NFP_NET_CFG_CTRL_PROMISC;
963 update = NFP_NET_CFG_UPDATE_GEN;
966 * DPDK sets promiscuous mode off just before this call
967 * assuming it can not fail ...
969 ret = nfp_net_reconfig(hw, new_ctrl, update);
979 * return 0 means link status changed, -1 means not changed
981 * Wait to complete is needed as it can take up to 9 seconds to get the Link
985 nfp_net_link_update(struct rte_eth_dev *dev, __rte_unused int wait_to_complete)
987 struct nfp_net_hw *hw;
988 struct rte_eth_link link;
989 uint32_t nn_link_status;
992 static const uint32_t ls_to_ethtool[] = {
993 [NFP_NET_CFG_STS_LINK_RATE_UNSUPPORTED] = ETH_SPEED_NUM_NONE,
994 [NFP_NET_CFG_STS_LINK_RATE_UNKNOWN] = ETH_SPEED_NUM_NONE,
995 [NFP_NET_CFG_STS_LINK_RATE_1G] = ETH_SPEED_NUM_1G,
996 [NFP_NET_CFG_STS_LINK_RATE_10G] = ETH_SPEED_NUM_10G,
997 [NFP_NET_CFG_STS_LINK_RATE_25G] = ETH_SPEED_NUM_25G,
998 [NFP_NET_CFG_STS_LINK_RATE_40G] = ETH_SPEED_NUM_40G,
999 [NFP_NET_CFG_STS_LINK_RATE_50G] = ETH_SPEED_NUM_50G,
1000 [NFP_NET_CFG_STS_LINK_RATE_100G] = ETH_SPEED_NUM_100G,
1003 PMD_DRV_LOG(DEBUG, "Link update");
1005 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1007 nn_link_status = nn_cfg_readl(hw, NFP_NET_CFG_STS);
1009 memset(&link, 0, sizeof(struct rte_eth_link));
1011 if (nn_link_status & NFP_NET_CFG_STS_LINK)
1012 link.link_status = ETH_LINK_UP;
1014 link.link_duplex = ETH_LINK_FULL_DUPLEX;
1016 nn_link_status = (nn_link_status >> NFP_NET_CFG_STS_LINK_RATE_SHIFT) &
1017 NFP_NET_CFG_STS_LINK_RATE_MASK;
1019 if (nn_link_status >= RTE_DIM(ls_to_ethtool))
1020 link.link_speed = ETH_SPEED_NUM_NONE;
1022 link.link_speed = ls_to_ethtool[nn_link_status];
1024 ret = rte_eth_linkstatus_set(dev, &link);
1026 if (link.link_status)
1027 PMD_DRV_LOG(INFO, "NIC Link is Up");
1029 PMD_DRV_LOG(INFO, "NIC Link is Down");
1035 nfp_net_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
1038 struct nfp_net_hw *hw;
1039 struct rte_eth_stats nfp_dev_stats;
1041 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1043 /* RTE_ETHDEV_QUEUE_STAT_CNTRS default value is 16 */
1045 memset(&nfp_dev_stats, 0, sizeof(nfp_dev_stats));
1047 /* reading per RX ring stats */
1048 for (i = 0; i < dev->data->nb_rx_queues; i++) {
1049 if (i == RTE_ETHDEV_QUEUE_STAT_CNTRS)
1052 nfp_dev_stats.q_ipackets[i] =
1053 nn_cfg_readq(hw, NFP_NET_CFG_RXR_STATS(i));
1055 nfp_dev_stats.q_ipackets[i] -=
1056 hw->eth_stats_base.q_ipackets[i];
1058 nfp_dev_stats.q_ibytes[i] =
1059 nn_cfg_readq(hw, NFP_NET_CFG_RXR_STATS(i) + 0x8);
1061 nfp_dev_stats.q_ibytes[i] -=
1062 hw->eth_stats_base.q_ibytes[i];
1065 /* reading per TX ring stats */
1066 for (i = 0; i < dev->data->nb_tx_queues; i++) {
1067 if (i == RTE_ETHDEV_QUEUE_STAT_CNTRS)
1070 nfp_dev_stats.q_opackets[i] =
1071 nn_cfg_readq(hw, NFP_NET_CFG_TXR_STATS(i));
1073 nfp_dev_stats.q_opackets[i] -=
1074 hw->eth_stats_base.q_opackets[i];
1076 nfp_dev_stats.q_obytes[i] =
1077 nn_cfg_readq(hw, NFP_NET_CFG_TXR_STATS(i) + 0x8);
1079 nfp_dev_stats.q_obytes[i] -=
1080 hw->eth_stats_base.q_obytes[i];
1083 nfp_dev_stats.ipackets =
1084 nn_cfg_readq(hw, NFP_NET_CFG_STATS_RX_FRAMES);
1086 nfp_dev_stats.ipackets -= hw->eth_stats_base.ipackets;
1088 nfp_dev_stats.ibytes =
1089 nn_cfg_readq(hw, NFP_NET_CFG_STATS_RX_OCTETS);
1091 nfp_dev_stats.ibytes -= hw->eth_stats_base.ibytes;
1093 nfp_dev_stats.opackets =
1094 nn_cfg_readq(hw, NFP_NET_CFG_STATS_TX_FRAMES);
1096 nfp_dev_stats.opackets -= hw->eth_stats_base.opackets;
1098 nfp_dev_stats.obytes =
1099 nn_cfg_readq(hw, NFP_NET_CFG_STATS_TX_OCTETS);
1101 nfp_dev_stats.obytes -= hw->eth_stats_base.obytes;
1103 /* reading general device stats */
1104 nfp_dev_stats.ierrors =
1105 nn_cfg_readq(hw, NFP_NET_CFG_STATS_RX_ERRORS);
1107 nfp_dev_stats.ierrors -= hw->eth_stats_base.ierrors;
1109 nfp_dev_stats.oerrors =
1110 nn_cfg_readq(hw, NFP_NET_CFG_STATS_TX_ERRORS);
1112 nfp_dev_stats.oerrors -= hw->eth_stats_base.oerrors;
1114 /* RX ring mbuf allocation failures */
1115 nfp_dev_stats.rx_nombuf = dev->data->rx_mbuf_alloc_failed;
1117 nfp_dev_stats.imissed =
1118 nn_cfg_readq(hw, NFP_NET_CFG_STATS_RX_DISCARDS);
1120 nfp_dev_stats.imissed -= hw->eth_stats_base.imissed;
1123 memcpy(stats, &nfp_dev_stats, sizeof(*stats));
1130 nfp_net_stats_reset(struct rte_eth_dev *dev)
1133 struct nfp_net_hw *hw;
1135 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1138 * hw->eth_stats_base records the per counter starting point.
1139 * Lets update it now
1142 /* reading per RX ring stats */
1143 for (i = 0; i < dev->data->nb_rx_queues; i++) {
1144 if (i == RTE_ETHDEV_QUEUE_STAT_CNTRS)
1147 hw->eth_stats_base.q_ipackets[i] =
1148 nn_cfg_readq(hw, NFP_NET_CFG_RXR_STATS(i));
1150 hw->eth_stats_base.q_ibytes[i] =
1151 nn_cfg_readq(hw, NFP_NET_CFG_RXR_STATS(i) + 0x8);
1154 /* reading per TX ring stats */
1155 for (i = 0; i < dev->data->nb_tx_queues; i++) {
1156 if (i == RTE_ETHDEV_QUEUE_STAT_CNTRS)
1159 hw->eth_stats_base.q_opackets[i] =
1160 nn_cfg_readq(hw, NFP_NET_CFG_TXR_STATS(i));
1162 hw->eth_stats_base.q_obytes[i] =
1163 nn_cfg_readq(hw, NFP_NET_CFG_TXR_STATS(i) + 0x8);
1166 hw->eth_stats_base.ipackets =
1167 nn_cfg_readq(hw, NFP_NET_CFG_STATS_RX_FRAMES);
1169 hw->eth_stats_base.ibytes =
1170 nn_cfg_readq(hw, NFP_NET_CFG_STATS_RX_OCTETS);
1172 hw->eth_stats_base.opackets =
1173 nn_cfg_readq(hw, NFP_NET_CFG_STATS_TX_FRAMES);
1175 hw->eth_stats_base.obytes =
1176 nn_cfg_readq(hw, NFP_NET_CFG_STATS_TX_OCTETS);
1178 /* reading general device stats */
1179 hw->eth_stats_base.ierrors =
1180 nn_cfg_readq(hw, NFP_NET_CFG_STATS_RX_ERRORS);
1182 hw->eth_stats_base.oerrors =
1183 nn_cfg_readq(hw, NFP_NET_CFG_STATS_TX_ERRORS);
1185 /* RX ring mbuf allocation failures */
1186 dev->data->rx_mbuf_alloc_failed = 0;
1188 hw->eth_stats_base.imissed =
1189 nn_cfg_readq(hw, NFP_NET_CFG_STATS_RX_DISCARDS);
1195 nfp_net_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
1197 struct nfp_net_hw *hw;
1199 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1201 dev_info->max_rx_queues = (uint16_t)hw->max_rx_queues;
1202 dev_info->max_tx_queues = (uint16_t)hw->max_tx_queues;
1203 dev_info->min_rx_bufsize = RTE_ETHER_MIN_MTU;
1204 dev_info->max_rx_pktlen = hw->max_mtu;
1205 /* Next should change when PF support is implemented */
1206 dev_info->max_mac_addrs = 1;
1208 if (hw->cap & NFP_NET_CFG_CTRL_RXVLAN)
1209 dev_info->rx_offload_capa = DEV_RX_OFFLOAD_VLAN_STRIP;
1211 if (hw->cap & NFP_NET_CFG_CTRL_RXCSUM)
1212 dev_info->rx_offload_capa |= DEV_RX_OFFLOAD_IPV4_CKSUM |
1213 DEV_RX_OFFLOAD_UDP_CKSUM |
1214 DEV_RX_OFFLOAD_TCP_CKSUM;
1216 dev_info->rx_offload_capa |= DEV_RX_OFFLOAD_JUMBO_FRAME |
1217 DEV_RX_OFFLOAD_RSS_HASH;
1219 if (hw->cap & NFP_NET_CFG_CTRL_TXVLAN)
1220 dev_info->tx_offload_capa = DEV_TX_OFFLOAD_VLAN_INSERT;
1222 if (hw->cap & NFP_NET_CFG_CTRL_TXCSUM)
1223 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_IPV4_CKSUM |
1224 DEV_TX_OFFLOAD_UDP_CKSUM |
1225 DEV_TX_OFFLOAD_TCP_CKSUM;
1227 if (hw->cap & NFP_NET_CFG_CTRL_LSO_ANY)
1228 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_TCP_TSO;
1230 if (hw->cap & NFP_NET_CFG_CTRL_GATHER)
1231 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_MULTI_SEGS;
1233 dev_info->default_rxconf = (struct rte_eth_rxconf) {
1235 .pthresh = DEFAULT_RX_PTHRESH,
1236 .hthresh = DEFAULT_RX_HTHRESH,
1237 .wthresh = DEFAULT_RX_WTHRESH,
1239 .rx_free_thresh = DEFAULT_RX_FREE_THRESH,
1243 dev_info->default_txconf = (struct rte_eth_txconf) {
1245 .pthresh = DEFAULT_TX_PTHRESH,
1246 .hthresh = DEFAULT_TX_HTHRESH,
1247 .wthresh = DEFAULT_TX_WTHRESH,
1249 .tx_free_thresh = DEFAULT_TX_FREE_THRESH,
1250 .tx_rs_thresh = DEFAULT_TX_RSBIT_THRESH,
1253 dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
1254 .nb_max = NFP_NET_MAX_RX_DESC,
1255 .nb_min = NFP_NET_MIN_RX_DESC,
1256 .nb_align = NFP_ALIGN_RING_DESC,
1259 dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
1260 .nb_max = NFP_NET_MAX_TX_DESC,
1261 .nb_min = NFP_NET_MIN_TX_DESC,
1262 .nb_align = NFP_ALIGN_RING_DESC,
1263 .nb_seg_max = NFP_TX_MAX_SEG,
1264 .nb_mtu_seg_max = NFP_TX_MAX_MTU_SEG,
1267 dev_info->flow_type_rss_offloads = ETH_RSS_IPV4 |
1268 ETH_RSS_NONFRAG_IPV4_TCP |
1269 ETH_RSS_NONFRAG_IPV4_UDP |
1271 ETH_RSS_NONFRAG_IPV6_TCP |
1272 ETH_RSS_NONFRAG_IPV6_UDP;
1274 dev_info->reta_size = NFP_NET_CFG_RSS_ITBL_SZ;
1275 dev_info->hash_key_size = NFP_NET_CFG_RSS_KEY_SZ;
1277 dev_info->speed_capa = ETH_LINK_SPEED_1G | ETH_LINK_SPEED_10G |
1278 ETH_LINK_SPEED_25G | ETH_LINK_SPEED_40G |
1279 ETH_LINK_SPEED_50G | ETH_LINK_SPEED_100G;
1284 static const uint32_t *
1285 nfp_net_supported_ptypes_get(struct rte_eth_dev *dev)
1287 static const uint32_t ptypes[] = {
1288 /* refers to nfp_net_set_hash() */
1289 RTE_PTYPE_INNER_L3_IPV4,
1290 RTE_PTYPE_INNER_L3_IPV6,
1291 RTE_PTYPE_INNER_L3_IPV6_EXT,
1292 RTE_PTYPE_INNER_L4_MASK,
1296 if (dev->rx_pkt_burst == nfp_net_recv_pkts)
1302 nfp_net_rx_queue_count(struct rte_eth_dev *dev, uint16_t queue_idx)
1304 struct nfp_net_rxq *rxq;
1305 struct nfp_net_rx_desc *rxds;
1309 rxq = (struct nfp_net_rxq *)dev->data->rx_queues[queue_idx];
1316 * Other PMDs are just checking the DD bit in intervals of 4
1317 * descriptors and counting all four if the first has the DD
1318 * bit on. Of course, this is not accurate but can be good for
1319 * performance. But ideally that should be done in descriptors
1320 * chunks belonging to the same cache line
1323 while (count < rxq->rx_count) {
1324 rxds = &rxq->rxds[idx];
1325 if ((rxds->rxd.meta_len_dd & PCIE_DESC_RX_DD) == 0)
1332 if ((idx) == rxq->rx_count)
1340 nfp_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t queue_id)
1342 struct rte_pci_device *pci_dev;
1343 struct nfp_net_hw *hw;
1346 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1347 pci_dev = RTE_ETH_DEV_TO_PCI(dev);
1349 if (pci_dev->intr_handle.type != RTE_INTR_HANDLE_UIO)
1352 /* Make sure all updates are written before un-masking */
1354 nn_cfg_writeb(hw, NFP_NET_CFG_ICR(base + queue_id),
1355 NFP_NET_CFG_ICR_UNMASKED);
1360 nfp_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t queue_id)
1362 struct rte_pci_device *pci_dev;
1363 struct nfp_net_hw *hw;
1366 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1367 pci_dev = RTE_ETH_DEV_TO_PCI(dev);
1369 if (pci_dev->intr_handle.type != RTE_INTR_HANDLE_UIO)
1372 /* Make sure all updates are written before un-masking */
1374 nn_cfg_writeb(hw, NFP_NET_CFG_ICR(base + queue_id), 0x1);
1379 nfp_net_dev_link_status_print(struct rte_eth_dev *dev)
1381 struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
1382 struct rte_eth_link link;
1384 rte_eth_linkstatus_get(dev, &link);
1385 if (link.link_status)
1386 PMD_DRV_LOG(INFO, "Port %d: Link Up - speed %u Mbps - %s",
1387 dev->data->port_id, link.link_speed,
1388 link.link_duplex == ETH_LINK_FULL_DUPLEX
1389 ? "full-duplex" : "half-duplex");
1391 PMD_DRV_LOG(INFO, " Port %d: Link Down",
1392 dev->data->port_id);
1394 PMD_DRV_LOG(INFO, "PCI Address: " PCI_PRI_FMT,
1395 pci_dev->addr.domain, pci_dev->addr.bus,
1396 pci_dev->addr.devid, pci_dev->addr.function);
1399 /* Interrupt configuration and handling */
1402 * nfp_net_irq_unmask - Unmask an interrupt
1404 * If MSI-X auto-masking is enabled clear the mask bit, otherwise
1405 * clear the ICR for the entry.
1408 nfp_net_irq_unmask(struct rte_eth_dev *dev)
1410 struct nfp_net_hw *hw;
1411 struct rte_pci_device *pci_dev;
1413 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1414 pci_dev = RTE_ETH_DEV_TO_PCI(dev);
1416 if (hw->ctrl & NFP_NET_CFG_CTRL_MSIXAUTO) {
1417 /* If MSI-X auto-masking is used, clear the entry */
1419 rte_intr_ack(&pci_dev->intr_handle);
1421 /* Make sure all updates are written before un-masking */
1423 nn_cfg_writeb(hw, NFP_NET_CFG_ICR(NFP_NET_IRQ_LSC_IDX),
1424 NFP_NET_CFG_ICR_UNMASKED);
1429 nfp_net_dev_interrupt_handler(void *param)
1432 struct rte_eth_link link;
1433 struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
1435 PMD_DRV_LOG(DEBUG, "We got a LSC interrupt!!!");
1437 rte_eth_linkstatus_get(dev, &link);
1439 nfp_net_link_update(dev, 0);
1442 if (!link.link_status) {
1443 /* handle it 1 sec later, wait it being stable */
1444 timeout = NFP_NET_LINK_UP_CHECK_TIMEOUT;
1445 /* likely to down */
1447 /* handle it 4 sec later, wait it being stable */
1448 timeout = NFP_NET_LINK_DOWN_CHECK_TIMEOUT;
1451 if (rte_eal_alarm_set(timeout * 1000,
1452 nfp_net_dev_interrupt_delayed_handler,
1454 PMD_INIT_LOG(ERR, "Error setting alarm");
1456 nfp_net_irq_unmask(dev);
1461 * Interrupt handler which shall be registered for alarm callback for delayed
1462 * handling specific interrupt to wait for the stable nic state. As the NIC
1463 * interrupt state is not stable for nfp after link is just down, it needs
1464 * to wait 4 seconds to get the stable status.
1466 * @param handle Pointer to interrupt handle.
1467 * @param param The address of parameter (struct rte_eth_dev *)
1472 nfp_net_dev_interrupt_delayed_handler(void *param)
1474 struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
1476 nfp_net_link_update(dev, 0);
1477 rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC, NULL);
1479 nfp_net_dev_link_status_print(dev);
1482 nfp_net_irq_unmask(dev);
1486 nfp_net_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
1488 struct nfp_net_hw *hw;
1490 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1492 /* check that mtu is within the allowed range */
1493 if (mtu < RTE_ETHER_MIN_MTU || (uint32_t)mtu > hw->max_mtu)
1496 /* mtu setting is forbidden if port is started */
1497 if (dev->data->dev_started) {
1498 PMD_DRV_LOG(ERR, "port %d must be stopped before configuration",
1499 dev->data->port_id);
1503 /* switch to jumbo mode if needed */
1504 if ((uint32_t)mtu > RTE_ETHER_MAX_LEN)
1505 dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
1507 dev->data->dev_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
1509 /* update max frame size */
1510 dev->data->dev_conf.rxmode.max_rx_pkt_len = (uint32_t)mtu;
1512 /* writing to configuration space */
1513 nn_cfg_writel(hw, NFP_NET_CFG_MTU, (uint32_t)mtu);
1521 nfp_net_rx_queue_setup(struct rte_eth_dev *dev,
1522 uint16_t queue_idx, uint16_t nb_desc,
1523 unsigned int socket_id,
1524 const struct rte_eth_rxconf *rx_conf,
1525 struct rte_mempool *mp)
1527 const struct rte_memzone *tz;
1528 struct nfp_net_rxq *rxq;
1529 struct nfp_net_hw *hw;
1530 uint32_t rx_desc_sz;
1532 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1534 PMD_INIT_FUNC_TRACE();
1536 /* Validating number of descriptors */
1537 rx_desc_sz = nb_desc * sizeof(struct nfp_net_rx_desc);
1538 if (rx_desc_sz % NFP_ALIGN_RING_DESC != 0 ||
1539 nb_desc > NFP_NET_MAX_RX_DESC ||
1540 nb_desc < NFP_NET_MIN_RX_DESC) {
1541 PMD_DRV_LOG(ERR, "Wrong nb_desc value");
1546 * Free memory prior to re-allocation if needed. This is the case after
1547 * calling nfp_net_stop
1549 if (dev->data->rx_queues[queue_idx]) {
1550 nfp_net_rx_queue_release(dev->data->rx_queues[queue_idx]);
1551 dev->data->rx_queues[queue_idx] = NULL;
1554 /* Allocating rx queue data structure */
1555 rxq = rte_zmalloc_socket("ethdev RX queue", sizeof(struct nfp_net_rxq),
1556 RTE_CACHE_LINE_SIZE, socket_id);
1560 /* Hw queues mapping based on firmware configuration */
1561 rxq->qidx = queue_idx;
1562 rxq->fl_qcidx = queue_idx * hw->stride_rx;
1563 rxq->rx_qcidx = rxq->fl_qcidx + (hw->stride_rx - 1);
1564 rxq->qcp_fl = hw->rx_bar + NFP_QCP_QUEUE_OFF(rxq->fl_qcidx);
1565 rxq->qcp_rx = hw->rx_bar + NFP_QCP_QUEUE_OFF(rxq->rx_qcidx);
1568 * Tracking mbuf size for detecting a potential mbuf overflow due to
1572 rxq->mbuf_size = rxq->mem_pool->elt_size;
1573 rxq->mbuf_size -= (sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM);
1574 hw->flbufsz = rxq->mbuf_size;
1576 rxq->rx_count = nb_desc;
1577 rxq->port_id = dev->data->port_id;
1578 rxq->rx_free_thresh = rx_conf->rx_free_thresh;
1579 rxq->drop_en = rx_conf->rx_drop_en;
1582 * Allocate RX ring hardware descriptors. A memzone large enough to
1583 * handle the maximum ring size is allocated in order to allow for
1584 * resizing in later calls to the queue setup function.
1586 tz = rte_eth_dma_zone_reserve(dev, "rx_ring", queue_idx,
1587 sizeof(struct nfp_net_rx_desc) *
1588 NFP_NET_MAX_RX_DESC, NFP_MEMZONE_ALIGN,
1592 PMD_DRV_LOG(ERR, "Error allocating rx dma");
1593 nfp_net_rx_queue_release(rxq);
1597 /* Saving physical and virtual addresses for the RX ring */
1598 rxq->dma = (uint64_t)tz->iova;
1599 rxq->rxds = (struct nfp_net_rx_desc *)tz->addr;
1601 /* mbuf pointers array for referencing mbufs linked to RX descriptors */
1602 rxq->rxbufs = rte_zmalloc_socket("rxq->rxbufs",
1603 sizeof(*rxq->rxbufs) * nb_desc,
1604 RTE_CACHE_LINE_SIZE, socket_id);
1605 if (rxq->rxbufs == NULL) {
1606 nfp_net_rx_queue_release(rxq);
1610 PMD_RX_LOG(DEBUG, "rxbufs=%p hw_ring=%p dma_addr=0x%" PRIx64,
1611 rxq->rxbufs, rxq->rxds, (unsigned long int)rxq->dma);
1613 nfp_net_reset_rx_queue(rxq);
1615 dev->data->rx_queues[queue_idx] = rxq;
1619 * Telling the HW about the physical address of the RX ring and number
1620 * of descriptors in log2 format
1622 nn_cfg_writeq(hw, NFP_NET_CFG_RXR_ADDR(queue_idx), rxq->dma);
1623 nn_cfg_writeb(hw, NFP_NET_CFG_RXR_SZ(queue_idx), rte_log2_u32(nb_desc));
1629 nfp_net_rx_fill_freelist(struct nfp_net_rxq *rxq)
1631 struct nfp_net_rx_buff *rxe = rxq->rxbufs;
1635 PMD_RX_LOG(DEBUG, "nfp_net_rx_fill_freelist for %u descriptors",
1638 for (i = 0; i < rxq->rx_count; i++) {
1639 struct nfp_net_rx_desc *rxd;
1640 struct rte_mbuf *mbuf = rte_pktmbuf_alloc(rxq->mem_pool);
1643 PMD_DRV_LOG(ERR, "RX mbuf alloc failed queue_id=%u",
1644 (unsigned)rxq->qidx);
1648 dma_addr = rte_cpu_to_le_64(RTE_MBUF_DMA_ADDR_DEFAULT(mbuf));
1650 rxd = &rxq->rxds[i];
1652 rxd->fld.dma_addr_hi = (dma_addr >> 32) & 0xff;
1653 rxd->fld.dma_addr_lo = dma_addr & 0xffffffff;
1655 PMD_RX_LOG(DEBUG, "[%d]: %" PRIx64, i, dma_addr);
1658 /* Make sure all writes are flushed before telling the hardware */
1661 /* Not advertising the whole ring as the firmware gets confused if so */
1662 PMD_RX_LOG(DEBUG, "Increment FL write pointer in %u",
1665 nfp_qcp_ptr_add(rxq->qcp_fl, NFP_QCP_WRITE_PTR, rxq->rx_count - 1);
1671 nfp_net_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
1672 uint16_t nb_desc, unsigned int socket_id,
1673 const struct rte_eth_txconf *tx_conf)
1675 const struct rte_memzone *tz;
1676 struct nfp_net_txq *txq;
1677 uint16_t tx_free_thresh;
1678 struct nfp_net_hw *hw;
1679 uint32_t tx_desc_sz;
1681 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1683 PMD_INIT_FUNC_TRACE();
1685 /* Validating number of descriptors */
1686 tx_desc_sz = nb_desc * sizeof(struct nfp_net_tx_desc);
1687 if (tx_desc_sz % NFP_ALIGN_RING_DESC != 0 ||
1688 nb_desc > NFP_NET_MAX_TX_DESC ||
1689 nb_desc < NFP_NET_MIN_TX_DESC) {
1690 PMD_DRV_LOG(ERR, "Wrong nb_desc value");
1694 tx_free_thresh = (uint16_t)((tx_conf->tx_free_thresh) ?
1695 tx_conf->tx_free_thresh :
1696 DEFAULT_TX_FREE_THRESH);
1698 if (tx_free_thresh > (nb_desc)) {
1700 "tx_free_thresh must be less than the number of TX "
1701 "descriptors. (tx_free_thresh=%u port=%d "
1702 "queue=%d)", (unsigned int)tx_free_thresh,
1703 dev->data->port_id, (int)queue_idx);
1708 * Free memory prior to re-allocation if needed. This is the case after
1709 * calling nfp_net_stop
1711 if (dev->data->tx_queues[queue_idx]) {
1712 PMD_TX_LOG(DEBUG, "Freeing memory prior to re-allocation %d",
1714 nfp_net_tx_queue_release(dev->data->tx_queues[queue_idx]);
1715 dev->data->tx_queues[queue_idx] = NULL;
1718 /* Allocating tx queue data structure */
1719 txq = rte_zmalloc_socket("ethdev TX queue", sizeof(struct nfp_net_txq),
1720 RTE_CACHE_LINE_SIZE, socket_id);
1722 PMD_DRV_LOG(ERR, "Error allocating tx dma");
1727 * Allocate TX ring hardware descriptors. A memzone large enough to
1728 * handle the maximum ring size is allocated in order to allow for
1729 * resizing in later calls to the queue setup function.
1731 tz = rte_eth_dma_zone_reserve(dev, "tx_ring", queue_idx,
1732 sizeof(struct nfp_net_tx_desc) *
1733 NFP_NET_MAX_TX_DESC, NFP_MEMZONE_ALIGN,
1736 PMD_DRV_LOG(ERR, "Error allocating tx dma");
1737 nfp_net_tx_queue_release(txq);
1741 txq->tx_count = nb_desc;
1742 txq->tx_free_thresh = tx_free_thresh;
1743 txq->tx_pthresh = tx_conf->tx_thresh.pthresh;
1744 txq->tx_hthresh = tx_conf->tx_thresh.hthresh;
1745 txq->tx_wthresh = tx_conf->tx_thresh.wthresh;
1747 /* queue mapping based on firmware configuration */
1748 txq->qidx = queue_idx;
1749 txq->tx_qcidx = queue_idx * hw->stride_tx;
1750 txq->qcp_q = hw->tx_bar + NFP_QCP_QUEUE_OFF(txq->tx_qcidx);
1752 txq->port_id = dev->data->port_id;
1754 /* Saving physical and virtual addresses for the TX ring */
1755 txq->dma = (uint64_t)tz->iova;
1756 txq->txds = (struct nfp_net_tx_desc *)tz->addr;
1758 /* mbuf pointers array for referencing mbufs linked to TX descriptors */
1759 txq->txbufs = rte_zmalloc_socket("txq->txbufs",
1760 sizeof(*txq->txbufs) * nb_desc,
1761 RTE_CACHE_LINE_SIZE, socket_id);
1762 if (txq->txbufs == NULL) {
1763 nfp_net_tx_queue_release(txq);
1766 PMD_TX_LOG(DEBUG, "txbufs=%p hw_ring=%p dma_addr=0x%" PRIx64,
1767 txq->txbufs, txq->txds, (unsigned long int)txq->dma);
1769 nfp_net_reset_tx_queue(txq);
1771 dev->data->tx_queues[queue_idx] = txq;
1775 * Telling the HW about the physical address of the TX ring and number
1776 * of descriptors in log2 format
1778 nn_cfg_writeq(hw, NFP_NET_CFG_TXR_ADDR(queue_idx), txq->dma);
1779 nn_cfg_writeb(hw, NFP_NET_CFG_TXR_SZ(queue_idx), rte_log2_u32(nb_desc));
1784 /* nfp_net_tx_tso - Set TX descriptor for TSO */
1786 nfp_net_tx_tso(struct nfp_net_txq *txq, struct nfp_net_tx_desc *txd,
1787 struct rte_mbuf *mb)
1790 struct nfp_net_hw *hw = txq->hw;
1792 if (!(hw->cap & NFP_NET_CFG_CTRL_LSO_ANY))
1795 ol_flags = mb->ol_flags;
1797 if (!(ol_flags & PKT_TX_TCP_SEG))
1800 txd->l3_offset = mb->l2_len;
1801 txd->l4_offset = mb->l2_len + mb->l3_len;
1802 txd->lso_hdrlen = mb->l2_len + mb->l3_len + mb->l4_len;
1803 txd->mss = rte_cpu_to_le_16(mb->tso_segsz);
1804 txd->flags = PCIE_DESC_TX_LSO;
1811 txd->lso_hdrlen = 0;
1815 /* nfp_net_tx_cksum - Set TX CSUM offload flags in TX descriptor */
1817 nfp_net_tx_cksum(struct nfp_net_txq *txq, struct nfp_net_tx_desc *txd,
1818 struct rte_mbuf *mb)
1821 struct nfp_net_hw *hw = txq->hw;
1823 if (!(hw->cap & NFP_NET_CFG_CTRL_TXCSUM))
1826 ol_flags = mb->ol_flags;
1828 /* IPv6 does not need checksum */
1829 if (ol_flags & PKT_TX_IP_CKSUM)
1830 txd->flags |= PCIE_DESC_TX_IP4_CSUM;
1832 switch (ol_flags & PKT_TX_L4_MASK) {
1833 case PKT_TX_UDP_CKSUM:
1834 txd->flags |= PCIE_DESC_TX_UDP_CSUM;
1836 case PKT_TX_TCP_CKSUM:
1837 txd->flags |= PCIE_DESC_TX_TCP_CSUM;
1841 if (ol_flags & (PKT_TX_IP_CKSUM | PKT_TX_L4_MASK))
1842 txd->flags |= PCIE_DESC_TX_CSUM;
1845 /* nfp_net_rx_cksum - set mbuf checksum flags based on RX descriptor flags */
1847 nfp_net_rx_cksum(struct nfp_net_rxq *rxq, struct nfp_net_rx_desc *rxd,
1848 struct rte_mbuf *mb)
1850 struct nfp_net_hw *hw = rxq->hw;
1852 if (!(hw->ctrl & NFP_NET_CFG_CTRL_RXCSUM))
1855 /* If IPv4 and IP checksum error, fail */
1856 if (unlikely((rxd->rxd.flags & PCIE_DESC_RX_IP4_CSUM) &&
1857 !(rxd->rxd.flags & PCIE_DESC_RX_IP4_CSUM_OK)))
1858 mb->ol_flags |= PKT_RX_IP_CKSUM_BAD;
1860 mb->ol_flags |= PKT_RX_IP_CKSUM_GOOD;
1862 /* If neither UDP nor TCP return */
1863 if (!(rxd->rxd.flags & PCIE_DESC_RX_TCP_CSUM) &&
1864 !(rxd->rxd.flags & PCIE_DESC_RX_UDP_CSUM))
1867 if (likely(rxd->rxd.flags & PCIE_DESC_RX_L4_CSUM_OK))
1868 mb->ol_flags |= PKT_RX_L4_CKSUM_GOOD;
1870 mb->ol_flags |= PKT_RX_L4_CKSUM_BAD;
1873 #define NFP_HASH_OFFSET ((uint8_t *)mbuf->buf_addr + mbuf->data_off - 4)
1874 #define NFP_HASH_TYPE_OFFSET ((uint8_t *)mbuf->buf_addr + mbuf->data_off - 8)
1876 #define NFP_DESC_META_LEN(d) (d->rxd.meta_len_dd & PCIE_DESC_RX_META_LEN_MASK)
1879 * nfp_net_set_hash - Set mbuf hash data
1881 * The RSS hash and hash-type are pre-pended to the packet data.
1882 * Extract and decode it and set the mbuf fields.
1885 nfp_net_set_hash(struct nfp_net_rxq *rxq, struct nfp_net_rx_desc *rxd,
1886 struct rte_mbuf *mbuf)
1888 struct nfp_net_hw *hw = rxq->hw;
1889 uint8_t *meta_offset;
1892 uint32_t hash_type = 0;
1894 if (!(hw->ctrl & NFP_NET_CFG_CTRL_RSS))
1897 /* this is true for new firmwares */
1898 if (likely(((hw->cap & NFP_NET_CFG_CTRL_RSS2) ||
1899 (NFD_CFG_MAJOR_VERSION_of(hw->ver) == 4)) &&
1900 NFP_DESC_META_LEN(rxd))) {
1903 * <---- 32 bit ----->
1908 * ====================
1911 * Field type word contains up to 8 4bit field types
1912 * A 4bit field type refers to a data field word
1913 * A data field word can have several 4bit field types
1915 meta_offset = rte_pktmbuf_mtod(mbuf, uint8_t *);
1916 meta_offset -= NFP_DESC_META_LEN(rxd);
1917 meta_info = rte_be_to_cpu_32(*(uint32_t *)meta_offset);
1919 /* NFP PMD just supports metadata for hashing */
1920 switch (meta_info & NFP_NET_META_FIELD_MASK) {
1921 case NFP_NET_META_HASH:
1922 /* next field type is about the hash type */
1923 meta_info >>= NFP_NET_META_FIELD_SIZE;
1924 /* hash value is in the data field */
1925 hash = rte_be_to_cpu_32(*(uint32_t *)meta_offset);
1926 hash_type = meta_info & NFP_NET_META_FIELD_MASK;
1929 /* Unsupported metadata can be a performance issue */
1933 if (!(rxd->rxd.flags & PCIE_DESC_RX_RSS))
1936 hash = rte_be_to_cpu_32(*(uint32_t *)NFP_HASH_OFFSET);
1937 hash_type = rte_be_to_cpu_32(*(uint32_t *)NFP_HASH_TYPE_OFFSET);
1940 mbuf->hash.rss = hash;
1941 mbuf->ol_flags |= PKT_RX_RSS_HASH;
1943 switch (hash_type) {
1944 case NFP_NET_RSS_IPV4:
1945 mbuf->packet_type |= RTE_PTYPE_INNER_L3_IPV4;
1947 case NFP_NET_RSS_IPV6:
1948 mbuf->packet_type |= RTE_PTYPE_INNER_L3_IPV6;
1950 case NFP_NET_RSS_IPV6_EX:
1951 mbuf->packet_type |= RTE_PTYPE_INNER_L3_IPV6_EXT;
1953 case NFP_NET_RSS_IPV4_TCP:
1954 mbuf->packet_type |= RTE_PTYPE_INNER_L3_IPV6_EXT;
1956 case NFP_NET_RSS_IPV6_TCP:
1957 mbuf->packet_type |= RTE_PTYPE_INNER_L3_IPV6_EXT;
1959 case NFP_NET_RSS_IPV4_UDP:
1960 mbuf->packet_type |= RTE_PTYPE_INNER_L3_IPV6_EXT;
1962 case NFP_NET_RSS_IPV6_UDP:
1963 mbuf->packet_type |= RTE_PTYPE_INNER_L3_IPV6_EXT;
1966 mbuf->packet_type |= RTE_PTYPE_INNER_L4_MASK;
1971 nfp_net_mbuf_alloc_failed(struct nfp_net_rxq *rxq)
1973 rte_eth_devices[rxq->port_id].data->rx_mbuf_alloc_failed++;
1976 #define NFP_DESC_META_LEN(d) (d->rxd.meta_len_dd & PCIE_DESC_RX_META_LEN_MASK)
1981 * There are some decisions to take:
1982 * 1) How to check DD RX descriptors bit
1983 * 2) How and when to allocate new mbufs
1985 * Current implementation checks just one single DD bit each loop. As each
1986 * descriptor is 8 bytes, it is likely a good idea to check descriptors in
1987 * a single cache line instead. Tests with this change have not shown any
1988 * performance improvement but it requires further investigation. For example,
1989 * depending on which descriptor is next, the number of descriptors could be
1990 * less than 8 for just checking those in the same cache line. This implies
1991 * extra work which could be counterproductive by itself. Indeed, last firmware
1992 * changes are just doing this: writing several descriptors with the DD bit
1993 * for saving PCIe bandwidth and DMA operations from the NFP.
1995 * Mbuf allocation is done when a new packet is received. Then the descriptor
1996 * is automatically linked with the new mbuf and the old one is given to the
1997 * user. The main drawback with this design is mbuf allocation is heavier than
1998 * using bulk allocations allowed by DPDK with rte_mempool_get_bulk. From the
1999 * cache point of view it does not seem allocating the mbuf early on as we are
2000 * doing now have any benefit at all. Again, tests with this change have not
2001 * shown any improvement. Also, rte_mempool_get_bulk returns all or nothing
2002 * so looking at the implications of this type of allocation should be studied
2007 nfp_net_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
2009 struct nfp_net_rxq *rxq;
2010 struct nfp_net_rx_desc *rxds;
2011 struct nfp_net_rx_buff *rxb;
2012 struct nfp_net_hw *hw;
2013 struct rte_mbuf *mb;
2014 struct rte_mbuf *new_mb;
2020 if (unlikely(rxq == NULL)) {
2022 * DPDK just checks the queue is lower than max queues
2023 * enabled. But the queue needs to be configured
2025 RTE_LOG_DP(ERR, PMD, "RX Bad queue\n");
2033 while (avail < nb_pkts) {
2034 rxb = &rxq->rxbufs[rxq->rd_p];
2035 if (unlikely(rxb == NULL)) {
2036 RTE_LOG_DP(ERR, PMD, "rxb does not exist!\n");
2040 rxds = &rxq->rxds[rxq->rd_p];
2041 if ((rxds->rxd.meta_len_dd & PCIE_DESC_RX_DD) == 0)
2045 * Memory barrier to ensure that we won't do other
2046 * reads before the DD bit.
2051 * We got a packet. Let's alloc a new mbuf for refilling the
2052 * free descriptor ring as soon as possible
2054 new_mb = rte_pktmbuf_alloc(rxq->mem_pool);
2055 if (unlikely(new_mb == NULL)) {
2056 RTE_LOG_DP(DEBUG, PMD,
2057 "RX mbuf alloc failed port_id=%u queue_id=%u\n",
2058 rxq->port_id, (unsigned int)rxq->qidx);
2059 nfp_net_mbuf_alloc_failed(rxq);
2066 * Grab the mbuf and refill the descriptor with the
2067 * previously allocated mbuf
2072 PMD_RX_LOG(DEBUG, "Packet len: %u, mbuf_size: %u",
2073 rxds->rxd.data_len, rxq->mbuf_size);
2075 /* Size of this segment */
2076 mb->data_len = rxds->rxd.data_len - NFP_DESC_META_LEN(rxds);
2077 /* Size of the whole packet. We just support 1 segment */
2078 mb->pkt_len = rxds->rxd.data_len - NFP_DESC_META_LEN(rxds);
2080 if (unlikely((mb->data_len + hw->rx_offset) >
2083 * This should not happen and the user has the
2084 * responsibility of avoiding it. But we have
2085 * to give some info about the error
2087 RTE_LOG_DP(ERR, PMD,
2088 "mbuf overflow likely due to the RX offset.\n"
2089 "\t\tYour mbuf size should have extra space for"
2090 " RX offset=%u bytes.\n"
2091 "\t\tCurrently you just have %u bytes available"
2092 " but the received packet is %u bytes long",
2094 rxq->mbuf_size - hw->rx_offset,
2099 /* Filling the received mbuf with packet info */
2101 mb->data_off = RTE_PKTMBUF_HEADROOM + hw->rx_offset;
2103 mb->data_off = RTE_PKTMBUF_HEADROOM +
2104 NFP_DESC_META_LEN(rxds);
2106 /* No scatter mode supported */
2110 mb->port = rxq->port_id;
2112 /* Checking the RSS flag */
2113 nfp_net_set_hash(rxq, rxds, mb);
2115 /* Checking the checksum flag */
2116 nfp_net_rx_cksum(rxq, rxds, mb);
2118 if ((rxds->rxd.flags & PCIE_DESC_RX_VLAN) &&
2119 (hw->ctrl & NFP_NET_CFG_CTRL_RXVLAN)) {
2120 mb->vlan_tci = rte_cpu_to_le_32(rxds->rxd.vlan);
2121 mb->ol_flags |= PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED;
2124 /* Adding the mbuf to the mbuf array passed by the app */
2125 rx_pkts[avail++] = mb;
2127 /* Now resetting and updating the descriptor */
2130 dma_addr = rte_cpu_to_le_64(RTE_MBUF_DMA_ADDR_DEFAULT(new_mb));
2132 rxds->fld.dma_addr_hi = (dma_addr >> 32) & 0xff;
2133 rxds->fld.dma_addr_lo = dma_addr & 0xffffffff;
2136 if (unlikely(rxq->rd_p == rxq->rx_count)) /* wrapping?*/
2143 PMD_RX_LOG(DEBUG, "RX port_id=%u queue_id=%u, %d packets received",
2144 rxq->port_id, (unsigned int)rxq->qidx, nb_hold);
2146 nb_hold += rxq->nb_rx_hold;
2149 * FL descriptors needs to be written before incrementing the
2150 * FL queue WR pointer
2153 if (nb_hold > rxq->rx_free_thresh) {
2154 PMD_RX_LOG(DEBUG, "port=%u queue=%u nb_hold=%u avail=%u",
2155 rxq->port_id, (unsigned int)rxq->qidx,
2156 (unsigned)nb_hold, (unsigned)avail);
2157 nfp_qcp_ptr_add(rxq->qcp_fl, NFP_QCP_WRITE_PTR, nb_hold);
2160 rxq->nb_rx_hold = nb_hold;
2166 * nfp_net_tx_free_bufs - Check for descriptors with a complete
2168 * @txq: TX queue to work with
2169 * Returns number of descriptors freed
2172 nfp_net_tx_free_bufs(struct nfp_net_txq *txq)
2177 PMD_TX_LOG(DEBUG, "queue %u. Check for descriptor with a complete"
2178 " status", txq->qidx);
2180 /* Work out how many packets have been sent */
2181 qcp_rd_p = nfp_qcp_read(txq->qcp_q, NFP_QCP_READ_PTR);
2183 if (qcp_rd_p == txq->rd_p) {
2184 PMD_TX_LOG(DEBUG, "queue %u: It seems harrier is not sending "
2185 "packets (%u, %u)", txq->qidx,
2186 qcp_rd_p, txq->rd_p);
2190 if (qcp_rd_p > txq->rd_p)
2191 todo = qcp_rd_p - txq->rd_p;
2193 todo = qcp_rd_p + txq->tx_count - txq->rd_p;
2195 PMD_TX_LOG(DEBUG, "qcp_rd_p %u, txq->rd_p: %u, qcp->rd_p: %u",
2196 qcp_rd_p, txq->rd_p, txq->rd_p);
2202 if (unlikely(txq->rd_p >= txq->tx_count))
2203 txq->rd_p -= txq->tx_count;
2208 /* Leaving always free descriptors for avoiding wrapping confusion */
2210 uint32_t nfp_free_tx_desc(struct nfp_net_txq *txq)
2212 if (txq->wr_p >= txq->rd_p)
2213 return txq->tx_count - (txq->wr_p - txq->rd_p) - 8;
2215 return txq->rd_p - txq->wr_p - 8;
2219 * nfp_net_txq_full - Check if the TX queue free descriptors
2220 * is below tx_free_threshold
2222 * @txq: TX queue to check
2224 * This function uses the host copy* of read/write pointers
2227 uint32_t nfp_net_txq_full(struct nfp_net_txq *txq)
2229 return (nfp_free_tx_desc(txq) < txq->tx_free_thresh);
2233 nfp_net_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
2235 struct nfp_net_txq *txq;
2236 struct nfp_net_hw *hw;
2237 struct nfp_net_tx_desc *txds, txd;
2238 struct rte_mbuf *pkt;
2240 int pkt_size, dma_size;
2241 uint16_t free_descs, issued_descs;
2242 struct rte_mbuf **lmbuf;
2247 txds = &txq->txds[txq->wr_p];
2249 PMD_TX_LOG(DEBUG, "working for queue %u at pos %d and %u packets",
2250 txq->qidx, txq->wr_p, nb_pkts);
2252 if ((nfp_free_tx_desc(txq) < nb_pkts) || (nfp_net_txq_full(txq)))
2253 nfp_net_tx_free_bufs(txq);
2255 free_descs = (uint16_t)nfp_free_tx_desc(txq);
2256 if (unlikely(free_descs == 0))
2263 PMD_TX_LOG(DEBUG, "queue: %u. Sending %u packets",
2264 txq->qidx, nb_pkts);
2265 /* Sending packets */
2266 while ((i < nb_pkts) && free_descs) {
2267 /* Grabbing the mbuf linked to the current descriptor */
2268 lmbuf = &txq->txbufs[txq->wr_p].mbuf;
2269 /* Warming the cache for releasing the mbuf later on */
2270 RTE_MBUF_PREFETCH_TO_FREE(*lmbuf);
2272 pkt = *(tx_pkts + i);
2274 if (unlikely((pkt->nb_segs > 1) &&
2275 !(hw->cap & NFP_NET_CFG_CTRL_GATHER))) {
2276 PMD_INIT_LOG(INFO, "NFP_NET_CFG_CTRL_GATHER not set");
2277 rte_panic("Multisegment packet unsupported\n");
2280 /* Checking if we have enough descriptors */
2281 if (unlikely(pkt->nb_segs > free_descs))
2285 * Checksum and VLAN flags just in the first descriptor for a
2286 * multisegment packet, but TSO info needs to be in all of them.
2288 txd.data_len = pkt->pkt_len;
2289 nfp_net_tx_tso(txq, &txd, pkt);
2290 nfp_net_tx_cksum(txq, &txd, pkt);
2292 if ((pkt->ol_flags & PKT_TX_VLAN_PKT) &&
2293 (hw->cap & NFP_NET_CFG_CTRL_TXVLAN)) {
2294 txd.flags |= PCIE_DESC_TX_VLAN;
2295 txd.vlan = pkt->vlan_tci;
2299 * mbuf data_len is the data in one segment and pkt_len data
2300 * in the whole packet. When the packet is just one segment,
2301 * then data_len = pkt_len
2303 pkt_size = pkt->pkt_len;
2306 /* Copying TSO, VLAN and cksum info */
2309 /* Releasing mbuf used by this descriptor previously*/
2311 rte_pktmbuf_free_seg(*lmbuf);
2314 * Linking mbuf with descriptor for being released
2315 * next time descriptor is used
2319 dma_size = pkt->data_len;
2320 dma_addr = rte_mbuf_data_iova(pkt);
2321 PMD_TX_LOG(DEBUG, "Working with mbuf at dma address:"
2322 "%" PRIx64 "", dma_addr);
2324 /* Filling descriptors fields */
2325 txds->dma_len = dma_size;
2326 txds->data_len = txd.data_len;
2327 txds->dma_addr_hi = (dma_addr >> 32) & 0xff;
2328 txds->dma_addr_lo = (dma_addr & 0xffffffff);
2329 ASSERT(free_descs > 0);
2333 if (unlikely(txq->wr_p == txq->tx_count)) /* wrapping?*/
2336 pkt_size -= dma_size;
2339 * Making the EOP, packets with just one segment
2342 if (likely(!pkt_size))
2343 txds->offset_eop = PCIE_DESC_TX_EOP;
2345 txds->offset_eop = 0;
2348 /* Referencing next free TX descriptor */
2349 txds = &txq->txds[txq->wr_p];
2350 lmbuf = &txq->txbufs[txq->wr_p].mbuf;
2357 /* Increment write pointers. Force memory write before we let HW know */
2359 nfp_qcp_ptr_add(txq->qcp_q, NFP_QCP_WRITE_PTR, issued_descs);
2365 nfp_net_vlan_offload_set(struct rte_eth_dev *dev, int mask)
2367 uint32_t new_ctrl, update;
2368 struct nfp_net_hw *hw;
2371 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2374 /* Enable vlan strip if it is not configured yet */
2375 if ((mask & ETH_VLAN_STRIP_OFFLOAD) &&
2376 !(hw->ctrl & NFP_NET_CFG_CTRL_RXVLAN))
2377 new_ctrl = hw->ctrl | NFP_NET_CFG_CTRL_RXVLAN;
2379 /* Disable vlan strip just if it is configured */
2380 if (!(mask & ETH_VLAN_STRIP_OFFLOAD) &&
2381 (hw->ctrl & NFP_NET_CFG_CTRL_RXVLAN))
2382 new_ctrl = hw->ctrl & ~NFP_NET_CFG_CTRL_RXVLAN;
2387 update = NFP_NET_CFG_UPDATE_GEN;
2389 ret = nfp_net_reconfig(hw, new_ctrl, update);
2391 hw->ctrl = new_ctrl;
2397 nfp_net_rss_reta_write(struct rte_eth_dev *dev,
2398 struct rte_eth_rss_reta_entry64 *reta_conf,
2401 uint32_t reta, mask;
2404 struct nfp_net_hw *hw =
2405 NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2407 if (reta_size != NFP_NET_CFG_RSS_ITBL_SZ) {
2408 PMD_DRV_LOG(ERR, "The size of hash lookup table configured "
2409 "(%d) doesn't match the number hardware can supported "
2410 "(%d)", reta_size, NFP_NET_CFG_RSS_ITBL_SZ);
2415 * Update Redirection Table. There are 128 8bit-entries which can be
2416 * manage as 32 32bit-entries
2418 for (i = 0; i < reta_size; i += 4) {
2419 /* Handling 4 RSS entries per loop */
2420 idx = i / RTE_RETA_GROUP_SIZE;
2421 shift = i % RTE_RETA_GROUP_SIZE;
2422 mask = (uint8_t)((reta_conf[idx].mask >> shift) & 0xF);
2428 /* If all 4 entries were set, don't need read RETA register */
2430 reta = nn_cfg_readl(hw, NFP_NET_CFG_RSS_ITBL + i);
2432 for (j = 0; j < 4; j++) {
2433 if (!(mask & (0x1 << j)))
2436 /* Clearing the entry bits */
2437 reta &= ~(0xFF << (8 * j));
2438 reta |= reta_conf[idx].reta[shift + j] << (8 * j);
2440 nn_cfg_writel(hw, NFP_NET_CFG_RSS_ITBL + (idx * 64) + shift,
2446 /* Update Redirection Table(RETA) of Receive Side Scaling of Ethernet device */
2448 nfp_net_reta_update(struct rte_eth_dev *dev,
2449 struct rte_eth_rss_reta_entry64 *reta_conf,
2452 struct nfp_net_hw *hw =
2453 NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2457 if (!(hw->ctrl & NFP_NET_CFG_CTRL_RSS))
2460 ret = nfp_net_rss_reta_write(dev, reta_conf, reta_size);
2464 update = NFP_NET_CFG_UPDATE_RSS;
2466 if (nfp_net_reconfig(hw, hw->ctrl, update) < 0)
2472 /* Query Redirection Table(RETA) of Receive Side Scaling of Ethernet device. */
2474 nfp_net_reta_query(struct rte_eth_dev *dev,
2475 struct rte_eth_rss_reta_entry64 *reta_conf,
2481 struct nfp_net_hw *hw;
2483 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2485 if (!(hw->ctrl & NFP_NET_CFG_CTRL_RSS))
2488 if (reta_size != NFP_NET_CFG_RSS_ITBL_SZ) {
2489 PMD_DRV_LOG(ERR, "The size of hash lookup table configured "
2490 "(%d) doesn't match the number hardware can supported "
2491 "(%d)", reta_size, NFP_NET_CFG_RSS_ITBL_SZ);
2496 * Reading Redirection Table. There are 128 8bit-entries which can be
2497 * manage as 32 32bit-entries
2499 for (i = 0; i < reta_size; i += 4) {
2500 /* Handling 4 RSS entries per loop */
2501 idx = i / RTE_RETA_GROUP_SIZE;
2502 shift = i % RTE_RETA_GROUP_SIZE;
2503 mask = (uint8_t)((reta_conf[idx].mask >> shift) & 0xF);
2508 reta = nn_cfg_readl(hw, NFP_NET_CFG_RSS_ITBL + (idx * 64) +
2510 for (j = 0; j < 4; j++) {
2511 if (!(mask & (0x1 << j)))
2513 reta_conf[idx].reta[shift + j] =
2514 (uint8_t)((reta >> (8 * j)) & 0xF);
2521 nfp_net_rss_hash_write(struct rte_eth_dev *dev,
2522 struct rte_eth_rss_conf *rss_conf)
2524 struct nfp_net_hw *hw;
2526 uint32_t cfg_rss_ctrl = 0;
2530 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2532 /* Writing the key byte a byte */
2533 for (i = 0; i < rss_conf->rss_key_len; i++) {
2534 memcpy(&key, &rss_conf->rss_key[i], 1);
2535 nn_cfg_writeb(hw, NFP_NET_CFG_RSS_KEY + i, key);
2538 rss_hf = rss_conf->rss_hf;
2540 if (rss_hf & ETH_RSS_IPV4)
2541 cfg_rss_ctrl |= NFP_NET_CFG_RSS_IPV4;
2543 if (rss_hf & ETH_RSS_NONFRAG_IPV4_TCP)
2544 cfg_rss_ctrl |= NFP_NET_CFG_RSS_IPV4_TCP;
2546 if (rss_hf & ETH_RSS_NONFRAG_IPV4_UDP)
2547 cfg_rss_ctrl |= NFP_NET_CFG_RSS_IPV4_UDP;
2549 if (rss_hf & ETH_RSS_IPV6)
2550 cfg_rss_ctrl |= NFP_NET_CFG_RSS_IPV6;
2552 if (rss_hf & ETH_RSS_NONFRAG_IPV6_TCP)
2553 cfg_rss_ctrl |= NFP_NET_CFG_RSS_IPV6_TCP;
2555 if (rss_hf & ETH_RSS_NONFRAG_IPV6_UDP)
2556 cfg_rss_ctrl |= NFP_NET_CFG_RSS_IPV6_UDP;
2558 cfg_rss_ctrl |= NFP_NET_CFG_RSS_MASK;
2559 cfg_rss_ctrl |= NFP_NET_CFG_RSS_TOEPLITZ;
2561 /* configuring where to apply the RSS hash */
2562 nn_cfg_writel(hw, NFP_NET_CFG_RSS_CTRL, cfg_rss_ctrl);
2564 /* Writing the key size */
2565 nn_cfg_writeb(hw, NFP_NET_CFG_RSS_KEY_SZ, rss_conf->rss_key_len);
2571 nfp_net_rss_hash_update(struct rte_eth_dev *dev,
2572 struct rte_eth_rss_conf *rss_conf)
2576 struct nfp_net_hw *hw;
2578 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2580 rss_hf = rss_conf->rss_hf;
2582 /* Checking if RSS is enabled */
2583 if (!(hw->ctrl & NFP_NET_CFG_CTRL_RSS)) {
2584 if (rss_hf != 0) { /* Enable RSS? */
2585 PMD_DRV_LOG(ERR, "RSS unsupported");
2588 return 0; /* Nothing to do */
2591 if (rss_conf->rss_key_len > NFP_NET_CFG_RSS_KEY_SZ) {
2592 PMD_DRV_LOG(ERR, "hash key too long");
2596 nfp_net_rss_hash_write(dev, rss_conf);
2598 update = NFP_NET_CFG_UPDATE_RSS;
2600 if (nfp_net_reconfig(hw, hw->ctrl, update) < 0)
2607 nfp_net_rss_hash_conf_get(struct rte_eth_dev *dev,
2608 struct rte_eth_rss_conf *rss_conf)
2611 uint32_t cfg_rss_ctrl;
2614 struct nfp_net_hw *hw;
2616 hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2618 if (!(hw->ctrl & NFP_NET_CFG_CTRL_RSS))
2621 rss_hf = rss_conf->rss_hf;
2622 cfg_rss_ctrl = nn_cfg_readl(hw, NFP_NET_CFG_RSS_CTRL);
2624 if (cfg_rss_ctrl & NFP_NET_CFG_RSS_IPV4)
2625 rss_hf |= ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_NONFRAG_IPV4_UDP;
2627 if (cfg_rss_ctrl & NFP_NET_CFG_RSS_IPV4_TCP)
2628 rss_hf |= ETH_RSS_NONFRAG_IPV4_TCP;
2630 if (cfg_rss_ctrl & NFP_NET_CFG_RSS_IPV6_TCP)
2631 rss_hf |= ETH_RSS_NONFRAG_IPV6_TCP;
2633 if (cfg_rss_ctrl & NFP_NET_CFG_RSS_IPV4_UDP)
2634 rss_hf |= ETH_RSS_NONFRAG_IPV4_UDP;
2636 if (cfg_rss_ctrl & NFP_NET_CFG_RSS_IPV6_UDP)
2637 rss_hf |= ETH_RSS_NONFRAG_IPV6_UDP;
2639 if (cfg_rss_ctrl & NFP_NET_CFG_RSS_IPV6)
2640 rss_hf |= ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_NONFRAG_IPV6_UDP;
2642 /* Propagate current RSS hash functions to caller */
2643 rss_conf->rss_hf = rss_hf;
2645 /* Reading the key size */
2646 rss_conf->rss_key_len = nn_cfg_readl(hw, NFP_NET_CFG_RSS_KEY_SZ);
2648 /* Reading the key byte a byte */
2649 for (i = 0; i < rss_conf->rss_key_len; i++) {
2650 key = nn_cfg_readb(hw, NFP_NET_CFG_RSS_KEY + i);
2651 memcpy(&rss_conf->rss_key[i], &key, 1);
2658 nfp_net_rss_config_default(struct rte_eth_dev *dev)
2660 struct rte_eth_conf *dev_conf;
2661 struct rte_eth_rss_conf rss_conf;
2662 struct rte_eth_rss_reta_entry64 nfp_reta_conf[2];
2663 uint16_t rx_queues = dev->data->nb_rx_queues;
2667 PMD_DRV_LOG(INFO, "setting default RSS conf for %u queues",
2670 nfp_reta_conf[0].mask = ~0x0;
2671 nfp_reta_conf[1].mask = ~0x0;
2674 for (i = 0; i < 0x40; i += 8) {
2675 for (j = i; j < (i + 8); j++) {
2676 nfp_reta_conf[0].reta[j] = queue;
2677 nfp_reta_conf[1].reta[j] = queue++;
2681 ret = nfp_net_rss_reta_write(dev, nfp_reta_conf, 0x80);
2685 dev_conf = &dev->data->dev_conf;
2687 PMD_DRV_LOG(INFO, "wrong rss conf");
2690 rss_conf = dev_conf->rx_adv_conf.rss_conf;
2692 ret = nfp_net_rss_hash_write(dev, &rss_conf);
2698 /* Initialise and register driver with DPDK Application */
2699 static const struct eth_dev_ops nfp_net_eth_dev_ops = {
2700 .dev_configure = nfp_net_configure,
2701 .dev_start = nfp_net_start,
2702 .dev_stop = nfp_net_stop,
2703 .dev_set_link_up = nfp_net_set_link_up,
2704 .dev_set_link_down = nfp_net_set_link_down,
2705 .dev_close = nfp_net_close,
2706 .promiscuous_enable = nfp_net_promisc_enable,
2707 .promiscuous_disable = nfp_net_promisc_disable,
2708 .link_update = nfp_net_link_update,
2709 .stats_get = nfp_net_stats_get,
2710 .stats_reset = nfp_net_stats_reset,
2711 .dev_infos_get = nfp_net_infos_get,
2712 .dev_supported_ptypes_get = nfp_net_supported_ptypes_get,
2713 .mtu_set = nfp_net_dev_mtu_set,
2714 .mac_addr_set = nfp_set_mac_addr,
2715 .vlan_offload_set = nfp_net_vlan_offload_set,
2716 .reta_update = nfp_net_reta_update,
2717 .reta_query = nfp_net_reta_query,
2718 .rss_hash_update = nfp_net_rss_hash_update,
2719 .rss_hash_conf_get = nfp_net_rss_hash_conf_get,
2720 .rx_queue_setup = nfp_net_rx_queue_setup,
2721 .rx_queue_release = nfp_net_rx_queue_release,
2722 .tx_queue_setup = nfp_net_tx_queue_setup,
2723 .tx_queue_release = nfp_net_tx_queue_release,
2724 .rx_queue_intr_enable = nfp_rx_queue_intr_enable,
2725 .rx_queue_intr_disable = nfp_rx_queue_intr_disable,
2729 * All eth_dev created got its private data, but before nfp_net_init, that
2730 * private data is referencing private data for all the PF ports. This is due
2731 * to how the vNIC bars are mapped based on first port, so all ports need info
2732 * about port 0 private data. Inside nfp_net_init the private data pointer is
2733 * changed to the right address for each port once the bars have been mapped.
2735 * This functions helps to find out which port and therefore which offset
2736 * inside the private data array to use.
2739 get_pf_port_number(char *name)
2741 char *pf_str = name;
2744 while ((*pf_str != '_') && (*pf_str != '\0') && (size++ < 30))
2749 * This should not happen at all and it would mean major
2750 * implementation fault.
2752 rte_panic("nfp_net: problem with pf device name\n");
2754 /* Expecting _portX with X within [0,7] */
2757 return (int)strtol(pf_str, NULL, 10);
2761 nfp_net_init(struct rte_eth_dev *eth_dev)
2763 struct rte_pci_device *pci_dev;
2764 struct nfp_net_hw *hw, *hwport0;
2766 uint64_t tx_bar_off = 0, rx_bar_off = 0;
2772 PMD_INIT_FUNC_TRACE();
2774 pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
2776 /* NFP can not handle DMA addresses requiring more than 40 bits */
2777 if (rte_mem_check_dma_mask(40)) {
2778 RTE_LOG(ERR, PMD, "device %s can not be used:",
2779 pci_dev->device.name);
2780 RTE_LOG(ERR, PMD, "\trestricted dma mask to 40 bits!\n");
2784 if ((pci_dev->id.device_id == PCI_DEVICE_ID_NFP4000_PF_NIC) ||
2785 (pci_dev->id.device_id == PCI_DEVICE_ID_NFP6000_PF_NIC)) {
2786 port = get_pf_port_number(eth_dev->data->name);
2787 if (port < 0 || port > 7) {
2788 PMD_DRV_LOG(ERR, "Port value is wrong");
2792 PMD_INIT_LOG(DEBUG, "Working with PF port value %d", port);
2794 /* This points to port 0 private data */
2795 hwport0 = NFP_NET_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
2797 /* This points to the specific port private data */
2798 hw = &hwport0[port];
2800 hw = NFP_NET_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
2804 eth_dev->dev_ops = &nfp_net_eth_dev_ops;
2805 eth_dev->rx_queue_count = nfp_net_rx_queue_count;
2806 eth_dev->rx_pkt_burst = &nfp_net_recv_pkts;
2807 eth_dev->tx_pkt_burst = &nfp_net_xmit_pkts;
2809 /* For secondary processes, the primary has done all the work */
2810 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
2813 rte_eth_copy_pci_info(eth_dev, pci_dev);
2815 hw->device_id = pci_dev->id.device_id;
2816 hw->vendor_id = pci_dev->id.vendor_id;
2817 hw->subsystem_device_id = pci_dev->id.subsystem_device_id;
2818 hw->subsystem_vendor_id = pci_dev->id.subsystem_vendor_id;
2820 PMD_INIT_LOG(DEBUG, "nfp_net: device (%u:%u) %u:%u:%u:%u",
2821 pci_dev->id.vendor_id, pci_dev->id.device_id,
2822 pci_dev->addr.domain, pci_dev->addr.bus,
2823 pci_dev->addr.devid, pci_dev->addr.function);
2825 hw->ctrl_bar = (uint8_t *)pci_dev->mem_resource[0].addr;
2826 if (hw->ctrl_bar == NULL) {
2828 "hw->ctrl_bar is NULL. BAR0 not configured");
2832 if (hw->is_pf && port == 0) {
2833 hw->ctrl_bar = nfp_rtsym_map(hw->sym_tbl, "_pf0_net_bar0",
2834 hw->total_ports * 32768,
2836 if (!hw->ctrl_bar) {
2837 printf("nfp_rtsym_map fails for _pf0_net_ctrl_bar");
2841 PMD_INIT_LOG(DEBUG, "ctrl bar: %p", hw->ctrl_bar);
2845 if (!hwport0->ctrl_bar)
2848 /* address based on port0 offset */
2849 hw->ctrl_bar = hwport0->ctrl_bar +
2850 (port * NFP_PF_CSR_SLICE_SIZE);
2853 PMD_INIT_LOG(DEBUG, "ctrl bar: %p", hw->ctrl_bar);
2855 hw->max_rx_queues = nn_cfg_readl(hw, NFP_NET_CFG_MAX_RXRINGS);
2856 hw->max_tx_queues = nn_cfg_readl(hw, NFP_NET_CFG_MAX_TXRINGS);
2858 /* Work out where in the BAR the queues start. */
2859 switch (pci_dev->id.device_id) {
2860 case PCI_DEVICE_ID_NFP4000_PF_NIC:
2861 case PCI_DEVICE_ID_NFP6000_PF_NIC:
2862 case PCI_DEVICE_ID_NFP6000_VF_NIC:
2863 start_q = nn_cfg_readl(hw, NFP_NET_CFG_START_TXQ);
2864 tx_bar_off = (uint64_t)start_q * NFP_QCP_QUEUE_ADDR_SZ;
2865 start_q = nn_cfg_readl(hw, NFP_NET_CFG_START_RXQ);
2866 rx_bar_off = (uint64_t)start_q * NFP_QCP_QUEUE_ADDR_SZ;
2869 PMD_DRV_LOG(ERR, "nfp_net: no device ID matching");
2871 goto dev_err_ctrl_map;
2874 PMD_INIT_LOG(DEBUG, "tx_bar_off: 0x%" PRIx64 "", tx_bar_off);
2875 PMD_INIT_LOG(DEBUG, "rx_bar_off: 0x%" PRIx64 "", rx_bar_off);
2877 if (hw->is_pf && port == 0) {
2878 /* configure access to tx/rx vNIC BARs */
2879 hwport0->hw_queues = nfp_cpp_map_area(hw->cpp, 0, 0,
2881 NFP_QCP_QUEUE_AREA_SZ,
2882 &hw->hwqueues_area);
2884 if (!hwport0->hw_queues) {
2885 printf("nfp_rtsym_map fails for net.qc");
2887 goto dev_err_ctrl_map;
2890 PMD_INIT_LOG(DEBUG, "tx/rx bar address: 0x%p",
2891 hwport0->hw_queues);
2895 hw->tx_bar = hwport0->hw_queues + tx_bar_off;
2896 hw->rx_bar = hwport0->hw_queues + rx_bar_off;
2897 eth_dev->data->dev_private = hw;
2899 hw->tx_bar = (uint8_t *)pci_dev->mem_resource[2].addr +
2901 hw->rx_bar = (uint8_t *)pci_dev->mem_resource[2].addr +
2905 PMD_INIT_LOG(DEBUG, "ctrl_bar: %p, tx_bar: %p, rx_bar: %p",
2906 hw->ctrl_bar, hw->tx_bar, hw->rx_bar);
2908 nfp_net_cfg_queue_setup(hw);
2910 /* Get some of the read-only fields from the config BAR */
2911 hw->ver = nn_cfg_readl(hw, NFP_NET_CFG_VERSION);
2912 hw->cap = nn_cfg_readl(hw, NFP_NET_CFG_CAP);
2913 hw->max_mtu = nn_cfg_readl(hw, NFP_NET_CFG_MAX_MTU);
2914 hw->mtu = RTE_ETHER_MTU;
2916 /* VLAN insertion is incompatible with LSOv2 */
2917 if (hw->cap & NFP_NET_CFG_CTRL_LSO2)
2918 hw->cap &= ~NFP_NET_CFG_CTRL_TXVLAN;
2920 if (NFD_CFG_MAJOR_VERSION_of(hw->ver) < 2)
2921 hw->rx_offset = NFP_NET_RX_OFFSET;
2923 hw->rx_offset = nn_cfg_readl(hw, NFP_NET_CFG_RX_OFFSET_ADDR);
2925 PMD_INIT_LOG(INFO, "VER: %u.%u, Maximum supported MTU: %d",
2926 NFD_CFG_MAJOR_VERSION_of(hw->ver),
2927 NFD_CFG_MINOR_VERSION_of(hw->ver), hw->max_mtu);
2929 PMD_INIT_LOG(INFO, "CAP: %#x, %s%s%s%s%s%s%s%s%s%s%s%s%s%s", hw->cap,
2930 hw->cap & NFP_NET_CFG_CTRL_PROMISC ? "PROMISC " : "",
2931 hw->cap & NFP_NET_CFG_CTRL_L2BC ? "L2BCFILT " : "",
2932 hw->cap & NFP_NET_CFG_CTRL_L2MC ? "L2MCFILT " : "",
2933 hw->cap & NFP_NET_CFG_CTRL_RXCSUM ? "RXCSUM " : "",
2934 hw->cap & NFP_NET_CFG_CTRL_TXCSUM ? "TXCSUM " : "",
2935 hw->cap & NFP_NET_CFG_CTRL_RXVLAN ? "RXVLAN " : "",
2936 hw->cap & NFP_NET_CFG_CTRL_TXVLAN ? "TXVLAN " : "",
2937 hw->cap & NFP_NET_CFG_CTRL_SCATTER ? "SCATTER " : "",
2938 hw->cap & NFP_NET_CFG_CTRL_GATHER ? "GATHER " : "",
2939 hw->cap & NFP_NET_CFG_CTRL_LIVE_ADDR ? "LIVE_ADDR " : "",
2940 hw->cap & NFP_NET_CFG_CTRL_LSO ? "TSO " : "",
2941 hw->cap & NFP_NET_CFG_CTRL_LSO2 ? "TSOv2 " : "",
2942 hw->cap & NFP_NET_CFG_CTRL_RSS ? "RSS " : "",
2943 hw->cap & NFP_NET_CFG_CTRL_RSS2 ? "RSSv2 " : "");
2947 hw->stride_rx = stride;
2948 hw->stride_tx = stride;
2950 PMD_INIT_LOG(INFO, "max_rx_queues: %u, max_tx_queues: %u",
2951 hw->max_rx_queues, hw->max_tx_queues);
2953 /* Initializing spinlock for reconfigs */
2954 rte_spinlock_init(&hw->reconfig_lock);
2956 /* Allocating memory for mac addr */
2957 eth_dev->data->mac_addrs = rte_zmalloc("mac_addr",
2958 RTE_ETHER_ADDR_LEN, 0);
2959 if (eth_dev->data->mac_addrs == NULL) {
2960 PMD_INIT_LOG(ERR, "Failed to space for MAC address");
2962 goto dev_err_queues_map;
2966 nfp_net_pf_read_mac(hwport0, port);
2967 nfp_net_write_mac(hw, (uint8_t *)&hw->mac_addr);
2969 nfp_net_vf_read_mac(hw);
2972 if (!rte_is_valid_assigned_ether_addr(
2973 (struct rte_ether_addr *)&hw->mac_addr)) {
2974 PMD_INIT_LOG(INFO, "Using random mac address for port %d",
2976 /* Using random mac addresses for VFs */
2977 rte_eth_random_addr(&hw->mac_addr[0]);
2978 nfp_net_write_mac(hw, (uint8_t *)&hw->mac_addr);
2981 /* Copying mac address to DPDK eth_dev struct */
2982 rte_ether_addr_copy((struct rte_ether_addr *)hw->mac_addr,
2983 ð_dev->data->mac_addrs[0]);
2985 if (!(hw->cap & NFP_NET_CFG_CTRL_LIVE_ADDR))
2986 eth_dev->data->dev_flags |= RTE_ETH_DEV_NOLIVE_MAC_ADDR;
2988 PMD_INIT_LOG(INFO, "port %d VendorID=0x%x DeviceID=0x%x "
2989 "mac=%02x:%02x:%02x:%02x:%02x:%02x",
2990 eth_dev->data->port_id, pci_dev->id.vendor_id,
2991 pci_dev->id.device_id,
2992 hw->mac_addr[0], hw->mac_addr[1], hw->mac_addr[2],
2993 hw->mac_addr[3], hw->mac_addr[4], hw->mac_addr[5]);
2995 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
2996 /* Registering LSC interrupt handler */
2997 rte_intr_callback_register(&pci_dev->intr_handle,
2998 nfp_net_dev_interrupt_handler,
3000 /* Telling the firmware about the LSC interrupt entry */
3001 nn_cfg_writeb(hw, NFP_NET_CFG_LSC, NFP_NET_IRQ_LSC_IDX);
3002 /* Recording current stats counters values */
3003 nfp_net_stats_reset(eth_dev);
3009 nfp_cpp_area_free(hw->hwqueues_area);
3011 nfp_cpp_area_free(hw->ctrl_area);
3016 #define NFP_CPP_MEMIO_BOUNDARY (1 << 20)
3019 * Serving a write request to NFP from host programs. The request
3020 * sends the write size and the CPP target. The bridge makes use
3021 * of CPP interface handler configured by the PMD setup.
3024 nfp_cpp_bridge_serve_write(int sockfd, struct nfp_cpp *cpp)
3026 struct nfp_cpp_area *area;
3027 off_t offset, nfp_offset;
3028 uint32_t cpp_id, pos, len;
3029 uint32_t tmpbuf[16];
3030 size_t count, curlen, totlen = 0;
3033 PMD_CPP_LOG(DEBUG, "%s: offset size %zu, count_size: %zu\n", __func__,
3034 sizeof(off_t), sizeof(size_t));
3036 /* Reading the count param */
3037 err = recv(sockfd, &count, sizeof(off_t), 0);
3038 if (err != sizeof(off_t))
3043 /* Reading the offset param */
3044 err = recv(sockfd, &offset, sizeof(off_t), 0);
3045 if (err != sizeof(off_t))
3048 /* Obtain target's CPP ID and offset in target */
3049 cpp_id = (offset >> 40) << 8;
3050 nfp_offset = offset & ((1ull << 40) - 1);
3052 PMD_CPP_LOG(DEBUG, "%s: count %zu and offset %jd\n", __func__, count,
3054 PMD_CPP_LOG(DEBUG, "%s: cpp_id %08x and nfp_offset %jd\n", __func__,
3055 cpp_id, nfp_offset);
3057 /* Adjust length if not aligned */
3058 if (((nfp_offset + (off_t)count - 1) & ~(NFP_CPP_MEMIO_BOUNDARY - 1)) !=
3059 (nfp_offset & ~(NFP_CPP_MEMIO_BOUNDARY - 1))) {
3060 curlen = NFP_CPP_MEMIO_BOUNDARY -
3061 (nfp_offset & (NFP_CPP_MEMIO_BOUNDARY - 1));
3065 /* configure a CPP PCIe2CPP BAR for mapping the CPP target */
3066 area = nfp_cpp_area_alloc_with_name(cpp, cpp_id, "nfp.cdev",
3067 nfp_offset, curlen);
3069 RTE_LOG(ERR, PMD, "%s: area alloc fail\n", __func__);
3073 /* mapping the target */
3074 err = nfp_cpp_area_acquire(area);
3076 RTE_LOG(ERR, PMD, "area acquire failed\n");
3077 nfp_cpp_area_free(area);
3081 for (pos = 0; pos < curlen; pos += len) {
3083 if (len > sizeof(tmpbuf))
3084 len = sizeof(tmpbuf);
3086 PMD_CPP_LOG(DEBUG, "%s: Receive %u of %zu\n", __func__,
3088 err = recv(sockfd, tmpbuf, len, MSG_WAITALL);
3089 if (err != (int)len) {
3091 "%s: error when receiving, %d of %zu\n",
3092 __func__, err, count);
3093 nfp_cpp_area_release(area);
3094 nfp_cpp_area_free(area);
3097 err = nfp_cpp_area_write(area, pos, tmpbuf, len);
3099 RTE_LOG(ERR, PMD, "nfp_cpp_area_write error\n");
3100 nfp_cpp_area_release(area);
3101 nfp_cpp_area_free(area);
3108 nfp_cpp_area_release(area);
3109 nfp_cpp_area_free(area);
3112 curlen = (count > NFP_CPP_MEMIO_BOUNDARY) ?
3113 NFP_CPP_MEMIO_BOUNDARY : count;
3120 * Serving a read request to NFP from host programs. The request
3121 * sends the read size and the CPP target. The bridge makes use
3122 * of CPP interface handler configured by the PMD setup. The read
3123 * data is sent to the requester using the same socket.
3126 nfp_cpp_bridge_serve_read(int sockfd, struct nfp_cpp *cpp)
3128 struct nfp_cpp_area *area;
3129 off_t offset, nfp_offset;
3130 uint32_t cpp_id, pos, len;
3131 uint32_t tmpbuf[16];
3132 size_t count, curlen, totlen = 0;
3135 PMD_CPP_LOG(DEBUG, "%s: offset size %zu, count_size: %zu\n", __func__,
3136 sizeof(off_t), sizeof(size_t));
3138 /* Reading the count param */
3139 err = recv(sockfd, &count, sizeof(off_t), 0);
3140 if (err != sizeof(off_t))
3145 /* Reading the offset param */
3146 err = recv(sockfd, &offset, sizeof(off_t), 0);
3147 if (err != sizeof(off_t))
3150 /* Obtain target's CPP ID and offset in target */
3151 cpp_id = (offset >> 40) << 8;
3152 nfp_offset = offset & ((1ull << 40) - 1);
3154 PMD_CPP_LOG(DEBUG, "%s: count %zu and offset %jd\n", __func__, count,
3156 PMD_CPP_LOG(DEBUG, "%s: cpp_id %08x and nfp_offset %jd\n", __func__,
3157 cpp_id, nfp_offset);
3159 /* Adjust length if not aligned */
3160 if (((nfp_offset + (off_t)count - 1) & ~(NFP_CPP_MEMIO_BOUNDARY - 1)) !=
3161 (nfp_offset & ~(NFP_CPP_MEMIO_BOUNDARY - 1))) {
3162 curlen = NFP_CPP_MEMIO_BOUNDARY -
3163 (nfp_offset & (NFP_CPP_MEMIO_BOUNDARY - 1));
3167 area = nfp_cpp_area_alloc_with_name(cpp, cpp_id, "nfp.cdev",
3168 nfp_offset, curlen);
3170 RTE_LOG(ERR, PMD, "%s: area alloc failed\n", __func__);
3174 err = nfp_cpp_area_acquire(area);
3176 RTE_LOG(ERR, PMD, "area acquire failed\n");
3177 nfp_cpp_area_free(area);
3181 for (pos = 0; pos < curlen; pos += len) {
3183 if (len > sizeof(tmpbuf))
3184 len = sizeof(tmpbuf);
3186 err = nfp_cpp_area_read(area, pos, tmpbuf, len);
3188 RTE_LOG(ERR, PMD, "nfp_cpp_area_read error\n");
3189 nfp_cpp_area_release(area);
3190 nfp_cpp_area_free(area);
3193 PMD_CPP_LOG(DEBUG, "%s: sending %u of %zu\n", __func__,
3196 err = send(sockfd, tmpbuf, len, 0);
3197 if (err != (int)len) {
3199 "%s: error when sending: %d of %zu\n",
3200 __func__, err, count);
3201 nfp_cpp_area_release(area);
3202 nfp_cpp_area_free(area);
3209 nfp_cpp_area_release(area);
3210 nfp_cpp_area_free(area);
3213 curlen = (count > NFP_CPP_MEMIO_BOUNDARY) ?
3214 NFP_CPP_MEMIO_BOUNDARY : count;
3219 #define NFP_IOCTL 'n'
3220 #define NFP_IOCTL_CPP_IDENTIFICATION _IOW(NFP_IOCTL, 0x8f, uint32_t)
3222 * Serving a ioctl command from host NFP tools. This usually goes to
3223 * a kernel driver char driver but it is not available when the PF is
3224 * bound to the PMD. Currently just one ioctl command is served and it
3225 * does not require any CPP access at all.
3228 nfp_cpp_bridge_serve_ioctl(int sockfd, struct nfp_cpp *cpp)
3230 uint32_t cmd, ident_size, tmp;
3233 /* Reading now the IOCTL command */
3234 err = recv(sockfd, &cmd, 4, 0);
3236 RTE_LOG(ERR, PMD, "%s: read error from socket\n", __func__);
3240 /* Only supporting NFP_IOCTL_CPP_IDENTIFICATION */
3241 if (cmd != NFP_IOCTL_CPP_IDENTIFICATION) {
3242 RTE_LOG(ERR, PMD, "%s: unknown cmd %d\n", __func__, cmd);
3246 err = recv(sockfd, &ident_size, 4, 0);
3248 RTE_LOG(ERR, PMD, "%s: read error from socket\n", __func__);
3252 tmp = nfp_cpp_model(cpp);
3254 PMD_CPP_LOG(DEBUG, "%s: sending NFP model %08x\n", __func__, tmp);
3256 err = send(sockfd, &tmp, 4, 0);
3258 RTE_LOG(ERR, PMD, "%s: error writing to socket\n", __func__);
3262 tmp = cpp->interface;
3264 PMD_CPP_LOG(DEBUG, "%s: sending NFP interface %08x\n", __func__, tmp);
3266 err = send(sockfd, &tmp, 4, 0);
3268 RTE_LOG(ERR, PMD, "%s: error writing to socket\n", __func__);
3275 #define NFP_BRIDGE_OP_READ 20
3276 #define NFP_BRIDGE_OP_WRITE 30
3277 #define NFP_BRIDGE_OP_IOCTL 40
3280 * This is the code to be executed by a service core. The CPP bridge interface
3281 * is based on a unix socket and requests usually received by a kernel char
3282 * driver, read, write and ioctl, are handled by the CPP bridge. NFP host tools
3283 * can be executed with a wrapper library and LD_LIBRARY being completely
3284 * unaware of the CPP bridge performing the NFP kernel char driver for CPP
3288 nfp_cpp_bridge_service_func(void *args)
3290 struct sockaddr address;
3291 struct nfp_cpp *cpp = args;
3292 int sockfd, datafd, op, ret;
3294 unlink("/tmp/nfp_cpp");
3295 sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
3297 RTE_LOG(ERR, PMD, "%s: socket creation error. Service failed\n",
3302 memset(&address, 0, sizeof(struct sockaddr));
3304 address.sa_family = AF_UNIX;
3305 strcpy(address.sa_data, "/tmp/nfp_cpp");
3307 ret = bind(sockfd, (const struct sockaddr *)&address,
3308 sizeof(struct sockaddr));
3310 RTE_LOG(ERR, PMD, "%s: bind error (%d). Service failed\n",
3316 ret = listen(sockfd, 20);
3318 RTE_LOG(ERR, PMD, "%s: listen error(%d). Service failed\n",
3325 datafd = accept(sockfd, NULL, NULL);
3327 RTE_LOG(ERR, PMD, "%s: accept call error (%d)\n",
3329 RTE_LOG(ERR, PMD, "%s: service failed\n", __func__);
3335 ret = recv(datafd, &op, 4, 0);
3337 PMD_CPP_LOG(DEBUG, "%s: socket close\n",
3342 PMD_CPP_LOG(DEBUG, "%s: getting op %u\n", __func__, op);
3344 if (op == NFP_BRIDGE_OP_READ)
3345 nfp_cpp_bridge_serve_read(datafd, cpp);
3347 if (op == NFP_BRIDGE_OP_WRITE)
3348 nfp_cpp_bridge_serve_write(datafd, cpp);
3350 if (op == NFP_BRIDGE_OP_IOCTL)
3351 nfp_cpp_bridge_serve_ioctl(datafd, cpp);
3364 nfp_pf_create_dev(struct rte_pci_device *dev, int port, int ports,
3365 struct nfp_cpp *cpp, struct nfp_hwinfo *hwinfo,
3366 int phys_port, struct nfp_rtsym_table *sym_tbl, void **priv)
3368 struct rte_eth_dev *eth_dev;
3369 struct nfp_net_hw *hw = NULL;
3371 struct rte_service_spec service;
3374 port_name = rte_zmalloc("nfp_pf_port_name", 100, 0);
3379 snprintf(port_name, 100, "%s_port%d", dev->device.name, port);
3381 strlcat(port_name, dev->device.name, 100);
3384 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
3385 eth_dev = rte_eth_dev_allocate(port_name);
3387 rte_free(port_name);
3391 *priv = rte_zmalloc(port_name,
3392 sizeof(struct nfp_net_adapter) *
3393 ports, RTE_CACHE_LINE_SIZE);
3395 rte_free(port_name);
3396 rte_eth_dev_release_port(eth_dev);
3400 eth_dev->data->dev_private = *priv;
3403 * dev_private pointing to port0 dev_private because we need
3404 * to configure vNIC bars based on port0 at nfp_net_init.
3405 * Then dev_private is adjusted per port.
3407 hw = (struct nfp_net_hw *)(eth_dev->data->dev_private) + port;
3409 hw->hwinfo = hwinfo;
3410 hw->sym_tbl = sym_tbl;
3411 hw->pf_port_idx = phys_port;
3414 hw->pf_multiport_enabled = 1;
3416 hw->total_ports = ports;
3418 eth_dev = rte_eth_dev_attach_secondary(port_name);
3420 RTE_LOG(ERR, EAL, "secondary process attach failed, "
3421 "ethdev doesn't exist");
3422 rte_free(port_name);
3425 eth_dev->process_private = cpp;
3428 eth_dev->device = &dev->device;
3429 rte_eth_copy_pci_info(eth_dev, dev);
3431 retval = nfp_net_init(eth_dev);
3437 rte_eth_dev_probing_finish(eth_dev);
3440 rte_free(port_name);
3444 * The rte_service needs to be created just once per PMD.
3445 * And the cpp handler needs to be linked to the service.
3446 * Secondary processes will be used for debugging DPDK apps
3447 * when requiring to use the CPP interface for accessing NFP
3448 * components. And the cpp handler for secondary processes is
3449 * available at this point.
3451 memset(&service, 0, sizeof(struct rte_service_spec));
3452 snprintf(service.name, sizeof(service.name), "nfp_cpp_service");
3453 service.callback = nfp_cpp_bridge_service_func;
3454 service.callback_userdata = (void *)cpp;
3456 hw = (struct nfp_net_hw *)(eth_dev->data->dev_private);
3458 if (rte_service_component_register(&service,
3459 &hw->nfp_cpp_service_id))
3460 RTE_LOG(ERR, PMD, "NFP CPP bridge service register() failed");
3462 RTE_LOG(DEBUG, PMD, "NFP CPP bridge service registered");
3468 rte_free(port_name);
3469 /* free ports private data if primary process */
3470 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
3471 rte_free(eth_dev->data->dev_private);
3472 eth_dev->data->dev_private = NULL;
3474 rte_eth_dev_release_port(eth_dev);
3479 #define DEFAULT_FW_PATH "/lib/firmware/netronome"
3482 nfp_fw_upload(struct rte_pci_device *dev, struct nfp_nsp *nsp, char *card)
3484 struct nfp_cpp *cpp = nsp->cpp;
3489 struct stat file_stat;
3492 /* Looking for firmware file in order of priority */
3494 /* First try to find a firmware image specific for this device */
3495 snprintf(serial, sizeof(serial),
3496 "serial-%02x-%02x-%02x-%02x-%02x-%02x-%02x-%02x",
3497 cpp->serial[0], cpp->serial[1], cpp->serial[2], cpp->serial[3],
3498 cpp->serial[4], cpp->serial[5], cpp->interface >> 8,
3499 cpp->interface & 0xff);
3501 snprintf(fw_name, sizeof(fw_name), "%s/%s.nffw", DEFAULT_FW_PATH,
3504 PMD_DRV_LOG(DEBUG, "Trying with fw file: %s", fw_name);
3505 fw_f = open(fw_name, O_RDONLY);
3509 /* Then try the PCI name */
3510 snprintf(fw_name, sizeof(fw_name), "%s/pci-%s.nffw", DEFAULT_FW_PATH,
3513 PMD_DRV_LOG(DEBUG, "Trying with fw file: %s", fw_name);
3514 fw_f = open(fw_name, O_RDONLY);
3518 /* Finally try the card type and media */
3519 snprintf(fw_name, sizeof(fw_name), "%s/%s", DEFAULT_FW_PATH, card);
3520 PMD_DRV_LOG(DEBUG, "Trying with fw file: %s", fw_name);
3521 fw_f = open(fw_name, O_RDONLY);
3523 PMD_DRV_LOG(INFO, "Firmware file %s not found.", fw_name);
3528 if (fstat(fw_f, &file_stat) < 0) {
3529 PMD_DRV_LOG(INFO, "Firmware file %s size is unknown", fw_name);
3534 fsize = file_stat.st_size;
3535 PMD_DRV_LOG(INFO, "Firmware file found at %s with size: %" PRIu64 "",
3536 fw_name, (uint64_t)fsize);
3538 fw_buf = malloc((size_t)fsize);
3540 PMD_DRV_LOG(INFO, "malloc failed for fw buffer");
3544 memset(fw_buf, 0, fsize);
3546 bytes = read(fw_f, fw_buf, fsize);
3547 if (bytes != fsize) {
3548 PMD_DRV_LOG(INFO, "Reading fw to buffer failed."
3549 "Just %" PRIu64 " of %" PRIu64 " bytes read",
3550 (uint64_t)bytes, (uint64_t)fsize);
3556 PMD_DRV_LOG(INFO, "Uploading the firmware ...");
3557 nfp_nsp_load_fw(nsp, fw_buf, bytes);
3558 PMD_DRV_LOG(INFO, "Done");
3567 nfp_fw_setup(struct rte_pci_device *dev, struct nfp_cpp *cpp,
3568 struct nfp_eth_table *nfp_eth_table, struct nfp_hwinfo *hwinfo)
3570 struct nfp_nsp *nsp;
3571 const char *nfp_fw_model;
3572 char card_desc[100];
3575 nfp_fw_model = nfp_hwinfo_lookup(hwinfo, "assembly.partno");
3578 PMD_DRV_LOG(INFO, "firmware model found: %s", nfp_fw_model);
3580 PMD_DRV_LOG(ERR, "firmware model NOT found");
3584 if (nfp_eth_table->count == 0 || nfp_eth_table->count > 8) {
3585 PMD_DRV_LOG(ERR, "NFP ethernet table reports wrong ports: %u",
3586 nfp_eth_table->count);
3590 PMD_DRV_LOG(INFO, "NFP ethernet port table reports %u ports",
3591 nfp_eth_table->count);
3593 PMD_DRV_LOG(INFO, "Port speed: %u", nfp_eth_table->ports[0].speed);
3595 snprintf(card_desc, sizeof(card_desc), "nic_%s_%dx%d.nffw",
3596 nfp_fw_model, nfp_eth_table->count,
3597 nfp_eth_table->ports[0].speed / 1000);
3599 nsp = nfp_nsp_open(cpp);
3601 PMD_DRV_LOG(ERR, "NFP error when obtaining NSP handle");
3605 nfp_nsp_device_soft_reset(nsp);
3606 err = nfp_fw_upload(dev, nsp, card_desc);
3612 static int nfp_pf_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
3613 struct rte_pci_device *dev)
3615 struct nfp_cpp *cpp;
3616 struct nfp_hwinfo *hwinfo;
3617 struct nfp_rtsym_table *sym_tbl;
3618 struct nfp_eth_table *nfp_eth_table = NULL;
3629 * When device bound to UIO, the device could be used, by mistake,
3630 * by two DPDK apps, and the UIO driver does not avoid it. This
3631 * could lead to a serious problem when configuring the NFP CPP
3632 * interface. Here we avoid this telling to the CPP init code to
3633 * use a lock file if UIO is being used.
3635 if (dev->kdrv == RTE_PCI_KDRV_VFIO)
3636 cpp = nfp_cpp_from_device_name(dev, 0);
3638 cpp = nfp_cpp_from_device_name(dev, 1);
3641 PMD_DRV_LOG(ERR, "A CPP handle can not be obtained");
3646 hwinfo = nfp_hwinfo_read(cpp);
3648 PMD_DRV_LOG(ERR, "Error reading hwinfo table");
3652 nfp_eth_table = nfp_eth_read_ports(cpp);
3653 if (!nfp_eth_table) {
3654 PMD_DRV_LOG(ERR, "Error reading NFP ethernet table");
3658 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
3659 if (nfp_fw_setup(dev, cpp, nfp_eth_table, hwinfo)) {
3660 PMD_DRV_LOG(INFO, "Error when uploading firmware");
3666 /* Now the symbol table should be there */
3667 sym_tbl = nfp_rtsym_table_read(cpp);
3669 PMD_DRV_LOG(ERR, "Something is wrong with the firmware"
3675 total_ports = nfp_rtsym_read_le(sym_tbl, "nfd_cfg_pf0_num_ports", &err);
3676 if (total_ports != (int)nfp_eth_table->count) {
3677 PMD_DRV_LOG(ERR, "Inconsistent number of ports");
3681 PMD_INIT_LOG(INFO, "Total pf ports: %d", total_ports);
3683 if (total_ports <= 0 || total_ports > 8) {
3684 PMD_DRV_LOG(ERR, "nfd_cfg_pf0_num_ports symbol with wrong value");
3689 for (i = 0; i < total_ports; i++) {
3690 ret = nfp_pf_create_dev(dev, i, total_ports, cpp, hwinfo,
3691 nfp_eth_table->ports[i].index,
3698 free(nfp_eth_table);
3702 static const struct rte_pci_id pci_id_nfp_pf_net_map[] = {
3704 RTE_PCI_DEVICE(PCI_VENDOR_ID_NETRONOME,
3705 PCI_DEVICE_ID_NFP4000_PF_NIC)
3708 RTE_PCI_DEVICE(PCI_VENDOR_ID_NETRONOME,
3709 PCI_DEVICE_ID_NFP6000_PF_NIC)
3716 static const struct rte_pci_id pci_id_nfp_vf_net_map[] = {
3718 RTE_PCI_DEVICE(PCI_VENDOR_ID_NETRONOME,
3719 PCI_DEVICE_ID_NFP6000_VF_NIC)
3726 static int eth_nfp_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
3727 struct rte_pci_device *pci_dev)
3729 return rte_eth_dev_pci_generic_probe(pci_dev,
3730 sizeof(struct nfp_net_adapter), nfp_net_init);
3733 static int eth_nfp_pci_remove(struct rte_pci_device *pci_dev)
3735 struct rte_eth_dev *eth_dev;
3736 struct nfp_net_hw *hw, *hwport0;
3739 eth_dev = rte_eth_dev_allocated(pci_dev->device.name);
3740 if ((pci_dev->id.device_id == PCI_DEVICE_ID_NFP4000_PF_NIC) ||
3741 (pci_dev->id.device_id == PCI_DEVICE_ID_NFP6000_PF_NIC)) {
3742 port = get_pf_port_number(eth_dev->data->name);
3744 * hotplug is not possible with multiport PF although freeing
3745 * data structures can be done for first port.
3749 hwport0 = NFP_NET_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
3750 hw = &hwport0[port];
3751 nfp_cpp_area_free(hw->ctrl_area);
3752 nfp_cpp_area_free(hw->hwqueues_area);
3755 nfp_cpp_free(hw->cpp);
3757 hw = NFP_NET_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
3759 /* hotplug is not possible with multiport PF */
3760 if (hw->pf_multiport_enabled)
3762 return rte_eth_dev_pci_generic_remove(pci_dev, NULL);
3765 static struct rte_pci_driver rte_nfp_net_pf_pmd = {
3766 .id_table = pci_id_nfp_pf_net_map,
3767 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
3768 .probe = nfp_pf_pci_probe,
3769 .remove = eth_nfp_pci_remove,
3772 static struct rte_pci_driver rte_nfp_net_vf_pmd = {
3773 .id_table = pci_id_nfp_vf_net_map,
3774 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
3775 .probe = eth_nfp_pci_probe,
3776 .remove = eth_nfp_pci_remove,
3779 RTE_PMD_REGISTER_PCI(net_nfp_pf, rte_nfp_net_pf_pmd);
3780 RTE_PMD_REGISTER_PCI(net_nfp_vf, rte_nfp_net_vf_pmd);
3781 RTE_PMD_REGISTER_PCI_TABLE(net_nfp_pf, pci_id_nfp_pf_net_map);
3782 RTE_PMD_REGISTER_PCI_TABLE(net_nfp_vf, pci_id_nfp_vf_net_map);
3783 RTE_PMD_REGISTER_KMOD_DEP(net_nfp_pf, "* igb_uio | uio_pci_generic | vfio");
3784 RTE_PMD_REGISTER_KMOD_DEP(net_nfp_vf, "* igb_uio | uio_pci_generic | vfio");
3785 RTE_LOG_REGISTER(nfp_logtype_init, pmd.net.nfp.init, NOTICE);
3786 RTE_LOG_REGISTER(nfp_logtype_driver, pmd.net.nfp.driver, NOTICE);
3789 * c-file-style: "Linux"
3790 * indent-tabs-mode: t