1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2016 Intel Corporation
11 #include <rte_ethdev_driver.h>
12 #include <rte_ethdev_pci.h>
13 #include <rte_memcpy.h>
14 #include <rte_string_fns.h>
15 #include <rte_memzone.h>
16 #include <rte_malloc.h>
17 #include <rte_atomic.h>
18 #include <rte_branch_prediction.h>
20 #include <rte_bus_pci.h>
21 #include <rte_ether.h>
24 #include <rte_common.h>
25 #include <rte_errno.h>
26 #include <rte_cpuflags.h>
28 #include <rte_memory.h>
31 #include <rte_cycles.h>
33 #include "virtio_ethdev.h"
34 #include "virtio_pci.h"
35 #include "virtio_logs.h"
36 #include "virtqueue.h"
37 #include "virtio_rxtx.h"
39 static int eth_virtio_dev_uninit(struct rte_eth_dev *eth_dev);
40 static int virtio_dev_configure(struct rte_eth_dev *dev);
41 static int virtio_dev_start(struct rte_eth_dev *dev);
42 static void virtio_dev_stop(struct rte_eth_dev *dev);
43 static void virtio_dev_promiscuous_enable(struct rte_eth_dev *dev);
44 static void virtio_dev_promiscuous_disable(struct rte_eth_dev *dev);
45 static void virtio_dev_allmulticast_enable(struct rte_eth_dev *dev);
46 static void virtio_dev_allmulticast_disable(struct rte_eth_dev *dev);
47 static void virtio_dev_info_get(struct rte_eth_dev *dev,
48 struct rte_eth_dev_info *dev_info);
49 static int virtio_dev_link_update(struct rte_eth_dev *dev,
50 int wait_to_complete);
51 static int virtio_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask);
53 static void virtio_set_hwaddr(struct virtio_hw *hw);
54 static void virtio_get_hwaddr(struct virtio_hw *hw);
56 static int virtio_dev_stats_get(struct rte_eth_dev *dev,
57 struct rte_eth_stats *stats);
58 static int virtio_dev_xstats_get(struct rte_eth_dev *dev,
59 struct rte_eth_xstat *xstats, unsigned n);
60 static int virtio_dev_xstats_get_names(struct rte_eth_dev *dev,
61 struct rte_eth_xstat_name *xstats_names,
63 static void virtio_dev_stats_reset(struct rte_eth_dev *dev);
64 static void virtio_dev_free_mbufs(struct rte_eth_dev *dev);
65 static int virtio_vlan_filter_set(struct rte_eth_dev *dev,
66 uint16_t vlan_id, int on);
67 static int virtio_mac_addr_add(struct rte_eth_dev *dev,
68 struct ether_addr *mac_addr,
69 uint32_t index, uint32_t vmdq);
70 static void virtio_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index);
71 static void virtio_mac_addr_set(struct rte_eth_dev *dev,
72 struct ether_addr *mac_addr);
74 static int virtio_intr_enable(struct rte_eth_dev *dev);
75 static int virtio_intr_disable(struct rte_eth_dev *dev);
77 static int virtio_dev_queue_stats_mapping_set(
78 struct rte_eth_dev *eth_dev,
83 int virtio_logtype_init;
84 int virtio_logtype_driver;
86 static void virtio_notify_peers(struct rte_eth_dev *dev);
87 static void virtio_ack_link_announce(struct rte_eth_dev *dev);
90 * The set of PCI devices this driver supports
92 static const struct rte_pci_id pci_id_virtio_map[] = {
93 { RTE_PCI_DEVICE(VIRTIO_PCI_VENDORID, VIRTIO_PCI_LEGACY_DEVICEID_NET) },
94 { RTE_PCI_DEVICE(VIRTIO_PCI_VENDORID, VIRTIO_PCI_MODERN_DEVICEID_NET) },
95 { .vendor_id = 0, /* sentinel */ },
98 struct rte_virtio_xstats_name_off {
99 char name[RTE_ETH_XSTATS_NAME_SIZE];
103 /* [rt]x_qX_ is prepended to the name string here */
104 static const struct rte_virtio_xstats_name_off rte_virtio_rxq_stat_strings[] = {
105 {"good_packets", offsetof(struct virtnet_rx, stats.packets)},
106 {"good_bytes", offsetof(struct virtnet_rx, stats.bytes)},
107 {"errors", offsetof(struct virtnet_rx, stats.errors)},
108 {"multicast_packets", offsetof(struct virtnet_rx, stats.multicast)},
109 {"broadcast_packets", offsetof(struct virtnet_rx, stats.broadcast)},
110 {"undersize_packets", offsetof(struct virtnet_rx, stats.size_bins[0])},
111 {"size_64_packets", offsetof(struct virtnet_rx, stats.size_bins[1])},
112 {"size_65_127_packets", offsetof(struct virtnet_rx, stats.size_bins[2])},
113 {"size_128_255_packets", offsetof(struct virtnet_rx, stats.size_bins[3])},
114 {"size_256_511_packets", offsetof(struct virtnet_rx, stats.size_bins[4])},
115 {"size_512_1023_packets", offsetof(struct virtnet_rx, stats.size_bins[5])},
116 {"size_1024_1518_packets", offsetof(struct virtnet_rx, stats.size_bins[6])},
117 {"size_1519_max_packets", offsetof(struct virtnet_rx, stats.size_bins[7])},
120 /* [rt]x_qX_ is prepended to the name string here */
121 static const struct rte_virtio_xstats_name_off rte_virtio_txq_stat_strings[] = {
122 {"good_packets", offsetof(struct virtnet_tx, stats.packets)},
123 {"good_bytes", offsetof(struct virtnet_tx, stats.bytes)},
124 {"errors", offsetof(struct virtnet_tx, stats.errors)},
125 {"multicast_packets", offsetof(struct virtnet_tx, stats.multicast)},
126 {"broadcast_packets", offsetof(struct virtnet_tx, stats.broadcast)},
127 {"undersize_packets", offsetof(struct virtnet_tx, stats.size_bins[0])},
128 {"size_64_packets", offsetof(struct virtnet_tx, stats.size_bins[1])},
129 {"size_65_127_packets", offsetof(struct virtnet_tx, stats.size_bins[2])},
130 {"size_128_255_packets", offsetof(struct virtnet_tx, stats.size_bins[3])},
131 {"size_256_511_packets", offsetof(struct virtnet_tx, stats.size_bins[4])},
132 {"size_512_1023_packets", offsetof(struct virtnet_tx, stats.size_bins[5])},
133 {"size_1024_1518_packets", offsetof(struct virtnet_tx, stats.size_bins[6])},
134 {"size_1519_max_packets", offsetof(struct virtnet_tx, stats.size_bins[7])},
137 #define VIRTIO_NB_RXQ_XSTATS (sizeof(rte_virtio_rxq_stat_strings) / \
138 sizeof(rte_virtio_rxq_stat_strings[0]))
139 #define VIRTIO_NB_TXQ_XSTATS (sizeof(rte_virtio_txq_stat_strings) / \
140 sizeof(rte_virtio_txq_stat_strings[0]))
142 struct virtio_hw_internal virtio_hw_internal[RTE_MAX_ETHPORTS];
145 virtio_send_command(struct virtnet_ctl *cvq, struct virtio_pmd_ctrl *ctrl,
146 int *dlen, int pkt_num)
150 virtio_net_ctrl_ack status = ~0;
151 struct virtio_pmd_ctrl *result;
152 struct virtqueue *vq;
154 ctrl->status = status;
156 if (!cvq || !cvq->vq) {
157 PMD_INIT_LOG(ERR, "Control queue is not supported.");
161 rte_spinlock_lock(&cvq->lock);
163 head = vq->vq_desc_head_idx;
165 PMD_INIT_LOG(DEBUG, "vq->vq_desc_head_idx = %d, status = %d, "
166 "vq->hw->cvq = %p vq = %p",
167 vq->vq_desc_head_idx, status, vq->hw->cvq, vq);
169 if (vq->vq_free_cnt < pkt_num + 2 || pkt_num < 1) {
170 rte_spinlock_unlock(&cvq->lock);
174 memcpy(cvq->virtio_net_hdr_mz->addr, ctrl,
175 sizeof(struct virtio_pmd_ctrl));
178 * Format is enforced in qemu code:
179 * One TX packet for header;
180 * At least one TX packet per argument;
181 * One RX packet for ACK.
183 vq->vq_ring.desc[head].flags = VRING_DESC_F_NEXT;
184 vq->vq_ring.desc[head].addr = cvq->virtio_net_hdr_mem;
185 vq->vq_ring.desc[head].len = sizeof(struct virtio_net_ctrl_hdr);
187 i = vq->vq_ring.desc[head].next;
189 for (k = 0; k < pkt_num; k++) {
190 vq->vq_ring.desc[i].flags = VRING_DESC_F_NEXT;
191 vq->vq_ring.desc[i].addr = cvq->virtio_net_hdr_mem
192 + sizeof(struct virtio_net_ctrl_hdr)
193 + sizeof(ctrl->status) + sizeof(uint8_t)*sum;
194 vq->vq_ring.desc[i].len = dlen[k];
197 i = vq->vq_ring.desc[i].next;
200 vq->vq_ring.desc[i].flags = VRING_DESC_F_WRITE;
201 vq->vq_ring.desc[i].addr = cvq->virtio_net_hdr_mem
202 + sizeof(struct virtio_net_ctrl_hdr);
203 vq->vq_ring.desc[i].len = sizeof(ctrl->status);
206 vq->vq_desc_head_idx = vq->vq_ring.desc[i].next;
208 vq_update_avail_ring(vq, head);
209 vq_update_avail_idx(vq);
211 PMD_INIT_LOG(DEBUG, "vq->vq_queue_index = %d", vq->vq_queue_index);
213 virtqueue_notify(vq);
216 while (VIRTQUEUE_NUSED(vq) == 0) {
221 while (VIRTQUEUE_NUSED(vq)) {
222 uint32_t idx, desc_idx, used_idx;
223 struct vring_used_elem *uep;
225 used_idx = (uint32_t)(vq->vq_used_cons_idx
226 & (vq->vq_nentries - 1));
227 uep = &vq->vq_ring.used->ring[used_idx];
228 idx = (uint32_t) uep->id;
231 while (vq->vq_ring.desc[desc_idx].flags & VRING_DESC_F_NEXT) {
232 desc_idx = vq->vq_ring.desc[desc_idx].next;
236 vq->vq_ring.desc[desc_idx].next = vq->vq_desc_head_idx;
237 vq->vq_desc_head_idx = idx;
239 vq->vq_used_cons_idx++;
243 PMD_INIT_LOG(DEBUG, "vq->vq_free_cnt=%d\nvq->vq_desc_head_idx=%d",
244 vq->vq_free_cnt, vq->vq_desc_head_idx);
246 result = cvq->virtio_net_hdr_mz->addr;
248 rte_spinlock_unlock(&cvq->lock);
249 return result->status;
253 virtio_set_multiple_queues(struct rte_eth_dev *dev, uint16_t nb_queues)
255 struct virtio_hw *hw = dev->data->dev_private;
256 struct virtio_pmd_ctrl ctrl;
260 ctrl.hdr.class = VIRTIO_NET_CTRL_MQ;
261 ctrl.hdr.cmd = VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET;
262 memcpy(ctrl.data, &nb_queues, sizeof(uint16_t));
264 dlen[0] = sizeof(uint16_t);
266 ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1);
268 PMD_INIT_LOG(ERR, "Multiqueue configured but send command "
269 "failed, this is too late now...");
277 virtio_dev_queue_release(void *queue __rte_unused)
283 virtio_get_queue_type(struct virtio_hw *hw, uint16_t vtpci_queue_idx)
285 if (vtpci_queue_idx == hw->max_queue_pairs * 2)
287 else if (vtpci_queue_idx % 2 == 0)
294 virtio_get_nr_vq(struct virtio_hw *hw)
296 uint16_t nr_vq = hw->max_queue_pairs * 2;
298 if (vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_VQ))
305 virtio_init_vring(struct virtqueue *vq)
307 int size = vq->vq_nentries;
308 struct vring *vr = &vq->vq_ring;
309 uint8_t *ring_mem = vq->vq_ring_virt_mem;
311 PMD_INIT_FUNC_TRACE();
314 * Reinitialise since virtio port might have been stopped and restarted
316 memset(ring_mem, 0, vq->vq_ring_size);
317 vring_init(vr, size, ring_mem, VIRTIO_PCI_VRING_ALIGN);
318 vq->vq_used_cons_idx = 0;
319 vq->vq_desc_head_idx = 0;
320 vq->vq_avail_idx = 0;
321 vq->vq_desc_tail_idx = (uint16_t)(vq->vq_nentries - 1);
322 vq->vq_free_cnt = vq->vq_nentries;
323 memset(vq->vq_descx, 0, sizeof(struct vq_desc_extra) * vq->vq_nentries);
325 vring_desc_init(vr->desc, size);
328 * Disable device(host) interrupting guest
330 virtqueue_disable_intr(vq);
334 virtio_init_queue(struct rte_eth_dev *dev, uint16_t vtpci_queue_idx)
336 char vq_name[VIRTQUEUE_MAX_NAME_SZ];
337 char vq_hdr_name[VIRTQUEUE_MAX_NAME_SZ];
338 const struct rte_memzone *mz = NULL, *hdr_mz = NULL;
339 unsigned int vq_size, size;
340 struct virtio_hw *hw = dev->data->dev_private;
341 struct virtnet_rx *rxvq = NULL;
342 struct virtnet_tx *txvq = NULL;
343 struct virtnet_ctl *cvq = NULL;
344 struct virtqueue *vq;
345 size_t sz_hdr_mz = 0;
346 void *sw_ring = NULL;
347 int queue_type = virtio_get_queue_type(hw, vtpci_queue_idx);
350 PMD_INIT_LOG(DEBUG, "setting up queue: %u", vtpci_queue_idx);
353 * Read the virtqueue size from the Queue Size field
354 * Always power of 2 and if 0 virtqueue does not exist
356 vq_size = VTPCI_OPS(hw)->get_queue_num(hw, vtpci_queue_idx);
357 PMD_INIT_LOG(DEBUG, "vq_size: %u", vq_size);
359 PMD_INIT_LOG(ERR, "virtqueue does not exist");
363 if (!rte_is_power_of_2(vq_size)) {
364 PMD_INIT_LOG(ERR, "virtqueue size is not powerof 2");
368 snprintf(vq_name, sizeof(vq_name), "port%d_vq%d",
369 dev->data->port_id, vtpci_queue_idx);
371 size = RTE_ALIGN_CEIL(sizeof(*vq) +
372 vq_size * sizeof(struct vq_desc_extra),
373 RTE_CACHE_LINE_SIZE);
374 if (queue_type == VTNET_TQ) {
376 * For each xmit packet, allocate a virtio_net_hdr
377 * and indirect ring elements
379 sz_hdr_mz = vq_size * sizeof(struct virtio_tx_region);
380 } else if (queue_type == VTNET_CQ) {
381 /* Allocate a page for control vq command, data and status */
382 sz_hdr_mz = PAGE_SIZE;
385 vq = rte_zmalloc_socket(vq_name, size, RTE_CACHE_LINE_SIZE,
388 PMD_INIT_LOG(ERR, "can not allocate vq");
391 hw->vqs[vtpci_queue_idx] = vq;
394 vq->vq_queue_index = vtpci_queue_idx;
395 vq->vq_nentries = vq_size;
398 * Reserve a memzone for vring elements
400 size = vring_size(vq_size, VIRTIO_PCI_VRING_ALIGN);
401 vq->vq_ring_size = RTE_ALIGN_CEIL(size, VIRTIO_PCI_VRING_ALIGN);
402 PMD_INIT_LOG(DEBUG, "vring_size: %d, rounded_vring_size: %d",
403 size, vq->vq_ring_size);
405 mz = rte_memzone_reserve_aligned(vq_name, vq->vq_ring_size,
407 0, VIRTIO_PCI_VRING_ALIGN);
409 if (rte_errno == EEXIST)
410 mz = rte_memzone_lookup(vq_name);
417 memset(mz->addr, 0, mz->len);
419 vq->vq_ring_mem = mz->iova;
420 vq->vq_ring_virt_mem = mz->addr;
421 PMD_INIT_LOG(DEBUG, "vq->vq_ring_mem: 0x%" PRIx64,
423 PMD_INIT_LOG(DEBUG, "vq->vq_ring_virt_mem: 0x%" PRIx64,
424 (uint64_t)(uintptr_t)mz->addr);
426 virtio_init_vring(vq);
429 snprintf(vq_hdr_name, sizeof(vq_hdr_name), "port%d_vq%d_hdr",
430 dev->data->port_id, vtpci_queue_idx);
431 hdr_mz = rte_memzone_reserve_aligned(vq_hdr_name, sz_hdr_mz,
433 RTE_CACHE_LINE_SIZE);
434 if (hdr_mz == NULL) {
435 if (rte_errno == EEXIST)
436 hdr_mz = rte_memzone_lookup(vq_hdr_name);
437 if (hdr_mz == NULL) {
444 if (queue_type == VTNET_RQ) {
445 size_t sz_sw = (RTE_PMD_VIRTIO_RX_MAX_BURST + vq_size) *
446 sizeof(vq->sw_ring[0]);
448 sw_ring = rte_zmalloc_socket("sw_ring", sz_sw,
449 RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
451 PMD_INIT_LOG(ERR, "can not allocate RX soft ring");
456 vq->sw_ring = sw_ring;
459 rxvq->port_id = dev->data->port_id;
461 } else if (queue_type == VTNET_TQ) {
464 txvq->port_id = dev->data->port_id;
466 txvq->virtio_net_hdr_mz = hdr_mz;
467 txvq->virtio_net_hdr_mem = hdr_mz->iova;
468 } else if (queue_type == VTNET_CQ) {
472 cvq->virtio_net_hdr_mz = hdr_mz;
473 cvq->virtio_net_hdr_mem = hdr_mz->iova;
474 memset(cvq->virtio_net_hdr_mz->addr, 0, PAGE_SIZE);
479 /* For virtio_user case (that is when hw->dev is NULL), we use
480 * virtual address. And we need properly set _offset_, please see
481 * VIRTIO_MBUF_DATA_DMA_ADDR in virtqueue.h for more information.
483 if (!hw->virtio_user_dev)
484 vq->offset = offsetof(struct rte_mbuf, buf_iova);
486 vq->vq_ring_mem = (uintptr_t)mz->addr;
487 vq->offset = offsetof(struct rte_mbuf, buf_addr);
488 if (queue_type == VTNET_TQ)
489 txvq->virtio_net_hdr_mem = (uintptr_t)hdr_mz->addr;
490 else if (queue_type == VTNET_CQ)
491 cvq->virtio_net_hdr_mem = (uintptr_t)hdr_mz->addr;
494 if (queue_type == VTNET_TQ) {
495 struct virtio_tx_region *txr;
499 memset(txr, 0, vq_size * sizeof(*txr));
500 for (i = 0; i < vq_size; i++) {
501 struct vring_desc *start_dp = txr[i].tx_indir;
503 vring_desc_init(start_dp, RTE_DIM(txr[i].tx_indir));
505 /* first indirect descriptor is always the tx header */
506 start_dp->addr = txvq->virtio_net_hdr_mem
508 + offsetof(struct virtio_tx_region, tx_hdr);
510 start_dp->len = hw->vtnet_hdr_size;
511 start_dp->flags = VRING_DESC_F_NEXT;
515 if (VTPCI_OPS(hw)->setup_queue(hw, vq) < 0) {
516 PMD_INIT_LOG(ERR, "setup_queue failed");
524 rte_memzone_free(hdr_mz);
525 rte_memzone_free(mz);
532 virtio_free_queues(struct virtio_hw *hw)
534 uint16_t nr_vq = virtio_get_nr_vq(hw);
535 struct virtqueue *vq;
542 for (i = 0; i < nr_vq; i++) {
547 queue_type = virtio_get_queue_type(hw, i);
548 if (queue_type == VTNET_RQ) {
549 rte_free(vq->sw_ring);
550 rte_memzone_free(vq->rxq.mz);
551 } else if (queue_type == VTNET_TQ) {
552 rte_memzone_free(vq->txq.mz);
553 rte_memzone_free(vq->txq.virtio_net_hdr_mz);
555 rte_memzone_free(vq->cq.mz);
556 rte_memzone_free(vq->cq.virtio_net_hdr_mz);
568 virtio_alloc_queues(struct rte_eth_dev *dev)
570 struct virtio_hw *hw = dev->data->dev_private;
571 uint16_t nr_vq = virtio_get_nr_vq(hw);
575 hw->vqs = rte_zmalloc(NULL, sizeof(struct virtqueue *) * nr_vq, 0);
577 PMD_INIT_LOG(ERR, "failed to allocate vqs");
581 for (i = 0; i < nr_vq; i++) {
582 ret = virtio_init_queue(dev, i);
584 virtio_free_queues(hw);
592 static void virtio_queues_unbind_intr(struct rte_eth_dev *dev);
595 virtio_dev_close(struct rte_eth_dev *dev)
597 struct virtio_hw *hw = dev->data->dev_private;
598 struct rte_intr_conf *intr_conf = &dev->data->dev_conf.intr_conf;
600 PMD_INIT_LOG(DEBUG, "virtio_dev_close");
603 if (dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC)
604 VTPCI_OPS(hw)->set_config_irq(hw, VIRTIO_MSI_NO_VECTOR);
606 virtio_queues_unbind_intr(dev);
608 if (intr_conf->lsc || intr_conf->rxq) {
609 virtio_intr_disable(dev);
610 rte_intr_efd_disable(dev->intr_handle);
611 rte_free(dev->intr_handle->intr_vec);
612 dev->intr_handle->intr_vec = NULL;
616 virtio_dev_free_mbufs(dev);
617 virtio_free_queues(hw);
621 virtio_dev_promiscuous_enable(struct rte_eth_dev *dev)
623 struct virtio_hw *hw = dev->data->dev_private;
624 struct virtio_pmd_ctrl ctrl;
628 if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_RX)) {
629 PMD_INIT_LOG(INFO, "host does not support rx control");
633 ctrl.hdr.class = VIRTIO_NET_CTRL_RX;
634 ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_PROMISC;
638 ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1);
640 PMD_INIT_LOG(ERR, "Failed to enable promisc");
644 virtio_dev_promiscuous_disable(struct rte_eth_dev *dev)
646 struct virtio_hw *hw = dev->data->dev_private;
647 struct virtio_pmd_ctrl ctrl;
651 if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_RX)) {
652 PMD_INIT_LOG(INFO, "host does not support rx control");
656 ctrl.hdr.class = VIRTIO_NET_CTRL_RX;
657 ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_PROMISC;
661 ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1);
663 PMD_INIT_LOG(ERR, "Failed to disable promisc");
667 virtio_dev_allmulticast_enable(struct rte_eth_dev *dev)
669 struct virtio_hw *hw = dev->data->dev_private;
670 struct virtio_pmd_ctrl ctrl;
674 if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_RX)) {
675 PMD_INIT_LOG(INFO, "host does not support rx control");
679 ctrl.hdr.class = VIRTIO_NET_CTRL_RX;
680 ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_ALLMULTI;
684 ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1);
686 PMD_INIT_LOG(ERR, "Failed to enable allmulticast");
690 virtio_dev_allmulticast_disable(struct rte_eth_dev *dev)
692 struct virtio_hw *hw = dev->data->dev_private;
693 struct virtio_pmd_ctrl ctrl;
697 if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_RX)) {
698 PMD_INIT_LOG(INFO, "host does not support rx control");
702 ctrl.hdr.class = VIRTIO_NET_CTRL_RX;
703 ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_ALLMULTI;
707 ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1);
709 PMD_INIT_LOG(ERR, "Failed to disable allmulticast");
712 #define VLAN_TAG_LEN 4 /* 802.3ac tag (not DMA'd) */
714 virtio_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
716 struct virtio_hw *hw = dev->data->dev_private;
717 uint32_t ether_hdr_len = ETHER_HDR_LEN + VLAN_TAG_LEN +
719 uint32_t frame_size = mtu + ether_hdr_len;
720 uint32_t max_frame_size = hw->max_mtu + ether_hdr_len;
722 max_frame_size = RTE_MIN(max_frame_size, VIRTIO_MAX_RX_PKTLEN);
724 if (mtu < ETHER_MIN_MTU || frame_size > max_frame_size) {
725 PMD_INIT_LOG(ERR, "MTU should be between %d and %d",
726 ETHER_MIN_MTU, max_frame_size - ether_hdr_len);
733 virtio_dev_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t queue_id)
735 struct virtnet_rx *rxvq = dev->data->rx_queues[queue_id];
736 struct virtqueue *vq = rxvq->vq;
738 virtqueue_enable_intr(vq);
743 virtio_dev_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t queue_id)
745 struct virtnet_rx *rxvq = dev->data->rx_queues[queue_id];
746 struct virtqueue *vq = rxvq->vq;
748 virtqueue_disable_intr(vq);
753 * dev_ops for virtio, bare necessities for basic operation
755 static const struct eth_dev_ops virtio_eth_dev_ops = {
756 .dev_configure = virtio_dev_configure,
757 .dev_start = virtio_dev_start,
758 .dev_stop = virtio_dev_stop,
759 .dev_close = virtio_dev_close,
760 .promiscuous_enable = virtio_dev_promiscuous_enable,
761 .promiscuous_disable = virtio_dev_promiscuous_disable,
762 .allmulticast_enable = virtio_dev_allmulticast_enable,
763 .allmulticast_disable = virtio_dev_allmulticast_disable,
764 .mtu_set = virtio_mtu_set,
765 .dev_infos_get = virtio_dev_info_get,
766 .stats_get = virtio_dev_stats_get,
767 .xstats_get = virtio_dev_xstats_get,
768 .xstats_get_names = virtio_dev_xstats_get_names,
769 .stats_reset = virtio_dev_stats_reset,
770 .xstats_reset = virtio_dev_stats_reset,
771 .link_update = virtio_dev_link_update,
772 .vlan_offload_set = virtio_dev_vlan_offload_set,
773 .rx_queue_setup = virtio_dev_rx_queue_setup,
774 .rx_queue_intr_enable = virtio_dev_rx_queue_intr_enable,
775 .rx_queue_intr_disable = virtio_dev_rx_queue_intr_disable,
776 .rx_queue_release = virtio_dev_queue_release,
777 .rx_descriptor_done = virtio_dev_rx_queue_done,
778 .tx_queue_setup = virtio_dev_tx_queue_setup,
779 .tx_queue_release = virtio_dev_queue_release,
780 /* collect stats per queue */
781 .queue_stats_mapping_set = virtio_dev_queue_stats_mapping_set,
782 .vlan_filter_set = virtio_vlan_filter_set,
783 .mac_addr_add = virtio_mac_addr_add,
784 .mac_addr_remove = virtio_mac_addr_remove,
785 .mac_addr_set = virtio_mac_addr_set,
789 virtio_dev_atomic_read_link_status(struct rte_eth_dev *dev,
790 struct rte_eth_link *link)
792 struct rte_eth_link *dst = link;
793 struct rte_eth_link *src = &(dev->data->dev_link);
795 if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
796 *(uint64_t *)src) == 0)
803 * Atomically writes the link status information into global
804 * structure rte_eth_dev.
807 * - Pointer to the structure rte_eth_dev to read from.
808 * - Pointer to the buffer to be saved with the link status.
811 * - On success, zero.
812 * - On failure, negative value.
815 virtio_dev_atomic_write_link_status(struct rte_eth_dev *dev,
816 struct rte_eth_link *link)
818 struct rte_eth_link *dst = &(dev->data->dev_link);
819 struct rte_eth_link *src = link;
821 if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
822 *(uint64_t *)src) == 0)
829 virtio_update_stats(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
833 for (i = 0; i < dev->data->nb_tx_queues; i++) {
834 const struct virtnet_tx *txvq = dev->data->tx_queues[i];
838 stats->opackets += txvq->stats.packets;
839 stats->obytes += txvq->stats.bytes;
840 stats->oerrors += txvq->stats.errors;
842 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
843 stats->q_opackets[i] = txvq->stats.packets;
844 stats->q_obytes[i] = txvq->stats.bytes;
848 for (i = 0; i < dev->data->nb_rx_queues; i++) {
849 const struct virtnet_rx *rxvq = dev->data->rx_queues[i];
853 stats->ipackets += rxvq->stats.packets;
854 stats->ibytes += rxvq->stats.bytes;
855 stats->ierrors += rxvq->stats.errors;
857 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
858 stats->q_ipackets[i] = rxvq->stats.packets;
859 stats->q_ibytes[i] = rxvq->stats.bytes;
863 stats->rx_nombuf = dev->data->rx_mbuf_alloc_failed;
866 static int virtio_dev_xstats_get_names(struct rte_eth_dev *dev,
867 struct rte_eth_xstat_name *xstats_names,
868 __rte_unused unsigned limit)
874 unsigned nstats = dev->data->nb_tx_queues * VIRTIO_NB_TXQ_XSTATS +
875 dev->data->nb_rx_queues * VIRTIO_NB_RXQ_XSTATS;
877 if (xstats_names != NULL) {
878 /* Note: limit checked in rte_eth_xstats_names() */
880 for (i = 0; i < dev->data->nb_rx_queues; i++) {
881 struct virtnet_rx *rxvq = dev->data->rx_queues[i];
884 for (t = 0; t < VIRTIO_NB_RXQ_XSTATS; t++) {
885 snprintf(xstats_names[count].name,
886 sizeof(xstats_names[count].name),
888 rte_virtio_rxq_stat_strings[t].name);
893 for (i = 0; i < dev->data->nb_tx_queues; i++) {
894 struct virtnet_tx *txvq = dev->data->tx_queues[i];
897 for (t = 0; t < VIRTIO_NB_TXQ_XSTATS; t++) {
898 snprintf(xstats_names[count].name,
899 sizeof(xstats_names[count].name),
901 rte_virtio_txq_stat_strings[t].name);
911 virtio_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
917 unsigned nstats = dev->data->nb_tx_queues * VIRTIO_NB_TXQ_XSTATS +
918 dev->data->nb_rx_queues * VIRTIO_NB_RXQ_XSTATS;
923 for (i = 0; i < dev->data->nb_rx_queues; i++) {
924 struct virtnet_rx *rxvq = dev->data->rx_queues[i];
931 for (t = 0; t < VIRTIO_NB_RXQ_XSTATS; t++) {
932 xstats[count].value = *(uint64_t *)(((char *)rxvq) +
933 rte_virtio_rxq_stat_strings[t].offset);
934 xstats[count].id = count;
939 for (i = 0; i < dev->data->nb_tx_queues; i++) {
940 struct virtnet_tx *txvq = dev->data->tx_queues[i];
947 for (t = 0; t < VIRTIO_NB_TXQ_XSTATS; t++) {
948 xstats[count].value = *(uint64_t *)(((char *)txvq) +
949 rte_virtio_txq_stat_strings[t].offset);
950 xstats[count].id = count;
959 virtio_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
961 virtio_update_stats(dev, stats);
967 virtio_dev_stats_reset(struct rte_eth_dev *dev)
971 for (i = 0; i < dev->data->nb_tx_queues; i++) {
972 struct virtnet_tx *txvq = dev->data->tx_queues[i];
976 txvq->stats.packets = 0;
977 txvq->stats.bytes = 0;
978 txvq->stats.errors = 0;
979 txvq->stats.multicast = 0;
980 txvq->stats.broadcast = 0;
981 memset(txvq->stats.size_bins, 0,
982 sizeof(txvq->stats.size_bins[0]) * 8);
985 for (i = 0; i < dev->data->nb_rx_queues; i++) {
986 struct virtnet_rx *rxvq = dev->data->rx_queues[i];
990 rxvq->stats.packets = 0;
991 rxvq->stats.bytes = 0;
992 rxvq->stats.errors = 0;
993 rxvq->stats.multicast = 0;
994 rxvq->stats.broadcast = 0;
995 memset(rxvq->stats.size_bins, 0,
996 sizeof(rxvq->stats.size_bins[0]) * 8);
1001 virtio_set_hwaddr(struct virtio_hw *hw)
1003 vtpci_write_dev_config(hw,
1004 offsetof(struct virtio_net_config, mac),
1005 &hw->mac_addr, ETHER_ADDR_LEN);
1009 virtio_get_hwaddr(struct virtio_hw *hw)
1011 if (vtpci_with_feature(hw, VIRTIO_NET_F_MAC)) {
1012 vtpci_read_dev_config(hw,
1013 offsetof(struct virtio_net_config, mac),
1014 &hw->mac_addr, ETHER_ADDR_LEN);
1016 eth_random_addr(&hw->mac_addr[0]);
1017 virtio_set_hwaddr(hw);
1022 virtio_mac_table_set(struct virtio_hw *hw,
1023 const struct virtio_net_ctrl_mac *uc,
1024 const struct virtio_net_ctrl_mac *mc)
1026 struct virtio_pmd_ctrl ctrl;
1029 if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_MAC_ADDR)) {
1030 PMD_DRV_LOG(INFO, "host does not support mac table");
1034 ctrl.hdr.class = VIRTIO_NET_CTRL_MAC;
1035 ctrl.hdr.cmd = VIRTIO_NET_CTRL_MAC_TABLE_SET;
1037 len[0] = uc->entries * ETHER_ADDR_LEN + sizeof(uc->entries);
1038 memcpy(ctrl.data, uc, len[0]);
1040 len[1] = mc->entries * ETHER_ADDR_LEN + sizeof(mc->entries);
1041 memcpy(ctrl.data + len[0], mc, len[1]);
1043 err = virtio_send_command(hw->cvq, &ctrl, len, 2);
1045 PMD_DRV_LOG(NOTICE, "mac table set failed: %d", err);
1050 virtio_mac_addr_add(struct rte_eth_dev *dev, struct ether_addr *mac_addr,
1051 uint32_t index, uint32_t vmdq __rte_unused)
1053 struct virtio_hw *hw = dev->data->dev_private;
1054 const struct ether_addr *addrs = dev->data->mac_addrs;
1056 struct virtio_net_ctrl_mac *uc, *mc;
1058 if (index >= VIRTIO_MAX_MAC_ADDRS) {
1059 PMD_DRV_LOG(ERR, "mac address index %u out of range", index);
1063 uc = alloca(VIRTIO_MAX_MAC_ADDRS * ETHER_ADDR_LEN + sizeof(uc->entries));
1065 mc = alloca(VIRTIO_MAX_MAC_ADDRS * ETHER_ADDR_LEN + sizeof(mc->entries));
1068 for (i = 0; i < VIRTIO_MAX_MAC_ADDRS; i++) {
1069 const struct ether_addr *addr
1070 = (i == index) ? mac_addr : addrs + i;
1071 struct virtio_net_ctrl_mac *tbl
1072 = is_multicast_ether_addr(addr) ? mc : uc;
1074 memcpy(&tbl->macs[tbl->entries++], addr, ETHER_ADDR_LEN);
1077 return virtio_mac_table_set(hw, uc, mc);
1081 virtio_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
1083 struct virtio_hw *hw = dev->data->dev_private;
1084 struct ether_addr *addrs = dev->data->mac_addrs;
1085 struct virtio_net_ctrl_mac *uc, *mc;
1088 if (index >= VIRTIO_MAX_MAC_ADDRS) {
1089 PMD_DRV_LOG(ERR, "mac address index %u out of range", index);
1093 uc = alloca(VIRTIO_MAX_MAC_ADDRS * ETHER_ADDR_LEN + sizeof(uc->entries));
1095 mc = alloca(VIRTIO_MAX_MAC_ADDRS * ETHER_ADDR_LEN + sizeof(mc->entries));
1098 for (i = 0; i < VIRTIO_MAX_MAC_ADDRS; i++) {
1099 struct virtio_net_ctrl_mac *tbl;
1101 if (i == index || is_zero_ether_addr(addrs + i))
1104 tbl = is_multicast_ether_addr(addrs + i) ? mc : uc;
1105 memcpy(&tbl->macs[tbl->entries++], addrs + i, ETHER_ADDR_LEN);
1108 virtio_mac_table_set(hw, uc, mc);
1112 virtio_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
1114 struct virtio_hw *hw = dev->data->dev_private;
1116 memcpy(hw->mac_addr, mac_addr, ETHER_ADDR_LEN);
1118 /* Use atomic update if available */
1119 if (vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_MAC_ADDR)) {
1120 struct virtio_pmd_ctrl ctrl;
1121 int len = ETHER_ADDR_LEN;
1123 ctrl.hdr.class = VIRTIO_NET_CTRL_MAC;
1124 ctrl.hdr.cmd = VIRTIO_NET_CTRL_MAC_ADDR_SET;
1126 memcpy(ctrl.data, mac_addr, ETHER_ADDR_LEN);
1127 virtio_send_command(hw->cvq, &ctrl, &len, 1);
1128 } else if (vtpci_with_feature(hw, VIRTIO_NET_F_MAC))
1129 virtio_set_hwaddr(hw);
1133 virtio_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
1135 struct virtio_hw *hw = dev->data->dev_private;
1136 struct virtio_pmd_ctrl ctrl;
1139 if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_VLAN))
1142 ctrl.hdr.class = VIRTIO_NET_CTRL_VLAN;
1143 ctrl.hdr.cmd = on ? VIRTIO_NET_CTRL_VLAN_ADD : VIRTIO_NET_CTRL_VLAN_DEL;
1144 memcpy(ctrl.data, &vlan_id, sizeof(vlan_id));
1145 len = sizeof(vlan_id);
1147 return virtio_send_command(hw->cvq, &ctrl, &len, 1);
1151 virtio_intr_enable(struct rte_eth_dev *dev)
1153 struct virtio_hw *hw = dev->data->dev_private;
1155 if (rte_intr_enable(dev->intr_handle) < 0)
1158 if (!hw->virtio_user_dev)
1159 hw->use_msix = vtpci_msix_detect(RTE_ETH_DEV_TO_PCI(dev));
1165 virtio_intr_disable(struct rte_eth_dev *dev)
1167 struct virtio_hw *hw = dev->data->dev_private;
1169 if (rte_intr_disable(dev->intr_handle) < 0)
1172 if (!hw->virtio_user_dev)
1173 hw->use_msix = vtpci_msix_detect(RTE_ETH_DEV_TO_PCI(dev));
1179 virtio_negotiate_features(struct virtio_hw *hw, uint64_t req_features)
1181 uint64_t host_features;
1183 /* Prepare guest_features: feature that driver wants to support */
1184 PMD_INIT_LOG(DEBUG, "guest_features before negotiate = %" PRIx64,
1187 /* Read device(host) feature bits */
1188 host_features = VTPCI_OPS(hw)->get_features(hw);
1189 PMD_INIT_LOG(DEBUG, "host_features before negotiate = %" PRIx64,
1192 /* If supported, ensure MTU value is valid before acknowledging it. */
1193 if (host_features & req_features & (1ULL << VIRTIO_NET_F_MTU)) {
1194 struct virtio_net_config config;
1196 vtpci_read_dev_config(hw,
1197 offsetof(struct virtio_net_config, mtu),
1198 &config.mtu, sizeof(config.mtu));
1200 if (config.mtu < ETHER_MIN_MTU)
1201 req_features &= ~(1ULL << VIRTIO_NET_F_MTU);
1205 * Negotiate features: Subset of device feature bits are written back
1206 * guest feature bits.
1208 hw->guest_features = req_features;
1209 hw->guest_features = vtpci_negotiate_features(hw, host_features);
1210 PMD_INIT_LOG(DEBUG, "features after negotiate = %" PRIx64,
1211 hw->guest_features);
1214 if (!vtpci_with_feature(hw, VIRTIO_F_VERSION_1)) {
1216 "VIRTIO_F_VERSION_1 features is not enabled.");
1219 vtpci_set_status(hw, VIRTIO_CONFIG_STATUS_FEATURES_OK);
1220 if (!(vtpci_get_status(hw) & VIRTIO_CONFIG_STATUS_FEATURES_OK)) {
1222 "failed to set FEATURES_OK status!");
1227 hw->req_guest_features = req_features;
1233 virtio_dev_pause(struct rte_eth_dev *dev)
1235 struct virtio_hw *hw = dev->data->dev_private;
1237 rte_spinlock_lock(&hw->state_lock);
1239 if (hw->started == 0) {
1240 /* Device is just stopped. */
1241 rte_spinlock_unlock(&hw->state_lock);
1246 * Prevent the worker threads from touching queues to avoid contention,
1247 * 1 ms should be enough for the ongoing Tx function to finish.
1254 * Recover hw state to let the worker threads continue.
1257 virtio_dev_resume(struct rte_eth_dev *dev)
1259 struct virtio_hw *hw = dev->data->dev_private;
1262 rte_spinlock_unlock(&hw->state_lock);
1266 * Should be called only after device is paused.
1269 virtio_inject_pkts(struct rte_eth_dev *dev, struct rte_mbuf **tx_pkts,
1272 struct virtio_hw *hw = dev->data->dev_private;
1273 struct virtnet_tx *txvq = dev->data->tx_queues[0];
1276 hw->inject_pkts = tx_pkts;
1277 ret = dev->tx_pkt_burst(txvq, tx_pkts, nb_pkts);
1278 hw->inject_pkts = NULL;
1284 virtio_notify_peers(struct rte_eth_dev *dev)
1286 struct virtio_hw *hw = dev->data->dev_private;
1287 struct virtnet_rx *rxvq = dev->data->rx_queues[0];
1288 struct rte_mbuf *rarp_mbuf;
1290 rarp_mbuf = rte_net_make_rarp_packet(rxvq->mpool,
1291 (struct ether_addr *)hw->mac_addr);
1292 if (rarp_mbuf == NULL) {
1293 PMD_DRV_LOG(ERR, "failed to make RARP packet.");
1297 /* If virtio port just stopped, no need to send RARP */
1298 if (virtio_dev_pause(dev) < 0) {
1299 rte_pktmbuf_free(rarp_mbuf);
1303 virtio_inject_pkts(dev, &rarp_mbuf, 1);
1304 virtio_dev_resume(dev);
1308 virtio_ack_link_announce(struct rte_eth_dev *dev)
1310 struct virtio_hw *hw = dev->data->dev_private;
1311 struct virtio_pmd_ctrl ctrl;
1313 ctrl.hdr.class = VIRTIO_NET_CTRL_ANNOUNCE;
1314 ctrl.hdr.cmd = VIRTIO_NET_CTRL_ANNOUNCE_ACK;
1316 virtio_send_command(hw->cvq, &ctrl, NULL, 0);
1320 * Process virtio config changed interrupt. Call the callback
1321 * if link state changed, generate gratuitous RARP packet if
1322 * the status indicates an ANNOUNCE.
1325 virtio_interrupt_handler(void *param)
1327 struct rte_eth_dev *dev = param;
1328 struct virtio_hw *hw = dev->data->dev_private;
1331 /* Read interrupt status which clears interrupt */
1332 isr = vtpci_isr(hw);
1333 PMD_DRV_LOG(INFO, "interrupt status = %#x", isr);
1335 if (virtio_intr_enable(dev) < 0)
1336 PMD_DRV_LOG(ERR, "interrupt enable failed");
1338 if (isr & VIRTIO_PCI_ISR_CONFIG) {
1339 if (virtio_dev_link_update(dev, 0) == 0)
1340 _rte_eth_dev_callback_process(dev,
1341 RTE_ETH_EVENT_INTR_LSC,
1345 if (isr & VIRTIO_NET_S_ANNOUNCE) {
1346 virtio_notify_peers(dev);
1347 virtio_ack_link_announce(dev);
1351 /* set rx and tx handlers according to what is supported */
1353 set_rxtx_funcs(struct rte_eth_dev *eth_dev)
1355 struct virtio_hw *hw = eth_dev->data->dev_private;
1357 if (hw->use_simple_rx) {
1358 PMD_INIT_LOG(INFO, "virtio: using simple Rx path on port %u",
1359 eth_dev->data->port_id);
1360 eth_dev->rx_pkt_burst = virtio_recv_pkts_vec;
1361 } else if (vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF)) {
1363 "virtio: using mergeable buffer Rx path on port %u",
1364 eth_dev->data->port_id);
1365 eth_dev->rx_pkt_burst = &virtio_recv_mergeable_pkts;
1367 PMD_INIT_LOG(INFO, "virtio: using standard Rx path on port %u",
1368 eth_dev->data->port_id);
1369 eth_dev->rx_pkt_burst = &virtio_recv_pkts;
1372 if (hw->use_simple_tx) {
1373 PMD_INIT_LOG(INFO, "virtio: using simple Tx path on port %u",
1374 eth_dev->data->port_id);
1375 eth_dev->tx_pkt_burst = virtio_xmit_pkts_simple;
1377 PMD_INIT_LOG(INFO, "virtio: using standard Tx path on port %u",
1378 eth_dev->data->port_id);
1379 eth_dev->tx_pkt_burst = virtio_xmit_pkts;
1383 /* Only support 1:1 queue/interrupt mapping so far.
1384 * TODO: support n:1 queue/interrupt mapping when there are limited number of
1385 * interrupt vectors (<N+1).
1388 virtio_queues_bind_intr(struct rte_eth_dev *dev)
1391 struct virtio_hw *hw = dev->data->dev_private;
1393 PMD_INIT_LOG(INFO, "queue/interrupt binding");
1394 for (i = 0; i < dev->data->nb_rx_queues; ++i) {
1395 dev->intr_handle->intr_vec[i] = i + 1;
1396 if (VTPCI_OPS(hw)->set_queue_irq(hw, hw->vqs[i * 2], i + 1) ==
1397 VIRTIO_MSI_NO_VECTOR) {
1398 PMD_DRV_LOG(ERR, "failed to set queue vector");
1407 virtio_queues_unbind_intr(struct rte_eth_dev *dev)
1410 struct virtio_hw *hw = dev->data->dev_private;
1412 PMD_INIT_LOG(INFO, "queue/interrupt unbinding");
1413 for (i = 0; i < dev->data->nb_rx_queues; ++i)
1414 VTPCI_OPS(hw)->set_queue_irq(hw,
1415 hw->vqs[i * VTNET_CQ],
1416 VIRTIO_MSI_NO_VECTOR);
1420 virtio_configure_intr(struct rte_eth_dev *dev)
1422 struct virtio_hw *hw = dev->data->dev_private;
1424 if (!rte_intr_cap_multiple(dev->intr_handle)) {
1425 PMD_INIT_LOG(ERR, "Multiple intr vector not supported");
1429 if (rte_intr_efd_enable(dev->intr_handle, dev->data->nb_rx_queues)) {
1430 PMD_INIT_LOG(ERR, "Fail to create eventfd");
1434 if (!dev->intr_handle->intr_vec) {
1435 dev->intr_handle->intr_vec =
1436 rte_zmalloc("intr_vec",
1437 hw->max_queue_pairs * sizeof(int), 0);
1438 if (!dev->intr_handle->intr_vec) {
1439 PMD_INIT_LOG(ERR, "Failed to allocate %u rxq vectors",
1440 hw->max_queue_pairs);
1445 /* Re-register callback to update max_intr */
1446 rte_intr_callback_unregister(dev->intr_handle,
1447 virtio_interrupt_handler,
1449 rte_intr_callback_register(dev->intr_handle,
1450 virtio_interrupt_handler,
1453 /* DO NOT try to remove this! This function will enable msix, or QEMU
1454 * will encounter SIGSEGV when DRIVER_OK is sent.
1455 * And for legacy devices, this should be done before queue/vec binding
1456 * to change the config size from 20 to 24, or VIRTIO_MSI_QUEUE_VECTOR
1457 * (22) will be ignored.
1459 if (virtio_intr_enable(dev) < 0) {
1460 PMD_DRV_LOG(ERR, "interrupt enable failed");
1464 if (virtio_queues_bind_intr(dev) < 0) {
1465 PMD_INIT_LOG(ERR, "Failed to bind queue/interrupt");
1472 /* reset device and renegotiate features if needed */
1474 virtio_init_device(struct rte_eth_dev *eth_dev, uint64_t req_features)
1476 struct virtio_hw *hw = eth_dev->data->dev_private;
1477 struct virtio_net_config *config;
1478 struct virtio_net_config local_config;
1479 struct rte_pci_device *pci_dev = NULL;
1482 /* Reset the device although not necessary at startup */
1485 /* Tell the host we've noticed this device. */
1486 vtpci_set_status(hw, VIRTIO_CONFIG_STATUS_ACK);
1488 /* Tell the host we've known how to drive the device. */
1489 vtpci_set_status(hw, VIRTIO_CONFIG_STATUS_DRIVER);
1490 if (virtio_negotiate_features(hw, req_features) < 0)
1493 if (!hw->virtio_user_dev) {
1494 pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
1495 rte_eth_copy_pci_info(eth_dev, pci_dev);
1498 /* If host does not support both status and MSI-X then disable LSC */
1499 if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS) &&
1500 hw->use_msix != VIRTIO_MSIX_NONE)
1501 eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_LSC;
1503 eth_dev->data->dev_flags &= ~RTE_ETH_DEV_INTR_LSC;
1505 /* Setting up rx_header size for the device */
1506 if (vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF) ||
1507 vtpci_with_feature(hw, VIRTIO_F_VERSION_1))
1508 hw->vtnet_hdr_size = sizeof(struct virtio_net_hdr_mrg_rxbuf);
1510 hw->vtnet_hdr_size = sizeof(struct virtio_net_hdr);
1512 /* Copy the permanent MAC address to: virtio_hw */
1513 virtio_get_hwaddr(hw);
1514 ether_addr_copy((struct ether_addr *) hw->mac_addr,
1515 ð_dev->data->mac_addrs[0]);
1517 "PORT MAC: %02X:%02X:%02X:%02X:%02X:%02X",
1518 hw->mac_addr[0], hw->mac_addr[1], hw->mac_addr[2],
1519 hw->mac_addr[3], hw->mac_addr[4], hw->mac_addr[5]);
1521 if (vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_VQ)) {
1522 config = &local_config;
1524 vtpci_read_dev_config(hw,
1525 offsetof(struct virtio_net_config, mac),
1526 &config->mac, sizeof(config->mac));
1528 if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS)) {
1529 vtpci_read_dev_config(hw,
1530 offsetof(struct virtio_net_config, status),
1531 &config->status, sizeof(config->status));
1534 "VIRTIO_NET_F_STATUS is not supported");
1538 if (vtpci_with_feature(hw, VIRTIO_NET_F_MQ)) {
1539 vtpci_read_dev_config(hw,
1540 offsetof(struct virtio_net_config, max_virtqueue_pairs),
1541 &config->max_virtqueue_pairs,
1542 sizeof(config->max_virtqueue_pairs));
1545 "VIRTIO_NET_F_MQ is not supported");
1546 config->max_virtqueue_pairs = 1;
1549 hw->max_queue_pairs = config->max_virtqueue_pairs;
1551 if (vtpci_with_feature(hw, VIRTIO_NET_F_MTU)) {
1552 vtpci_read_dev_config(hw,
1553 offsetof(struct virtio_net_config, mtu),
1555 sizeof(config->mtu));
1558 * MTU value has already been checked at negotiation
1559 * time, but check again in case it has changed since
1560 * then, which should not happen.
1562 if (config->mtu < ETHER_MIN_MTU) {
1563 PMD_INIT_LOG(ERR, "invalid max MTU value (%u)",
1568 hw->max_mtu = config->mtu;
1569 /* Set initial MTU to maximum one supported by vhost */
1570 eth_dev->data->mtu = config->mtu;
1573 hw->max_mtu = VIRTIO_MAX_RX_PKTLEN - ETHER_HDR_LEN -
1574 VLAN_TAG_LEN - hw->vtnet_hdr_size;
1577 PMD_INIT_LOG(DEBUG, "config->max_virtqueue_pairs=%d",
1578 config->max_virtqueue_pairs);
1579 PMD_INIT_LOG(DEBUG, "config->status=%d", config->status);
1581 "PORT MAC: %02X:%02X:%02X:%02X:%02X:%02X",
1582 config->mac[0], config->mac[1],
1583 config->mac[2], config->mac[3],
1584 config->mac[4], config->mac[5]);
1586 PMD_INIT_LOG(DEBUG, "config->max_virtqueue_pairs=1");
1587 hw->max_queue_pairs = 1;
1588 hw->max_mtu = VIRTIO_MAX_RX_PKTLEN - ETHER_HDR_LEN -
1589 VLAN_TAG_LEN - hw->vtnet_hdr_size;
1592 ret = virtio_alloc_queues(eth_dev);
1596 if (eth_dev->data->dev_conf.intr_conf.rxq) {
1597 if (virtio_configure_intr(eth_dev) < 0) {
1598 PMD_INIT_LOG(ERR, "failed to configure interrupt");
1603 vtpci_reinit_complete(hw);
1606 PMD_INIT_LOG(DEBUG, "port %d vendorID=0x%x deviceID=0x%x",
1607 eth_dev->data->port_id, pci_dev->id.vendor_id,
1608 pci_dev->id.device_id);
1614 * Remap the PCI device again (IO port map for legacy device and
1615 * memory map for modern device), so that the secondary process
1616 * could have the PCI initiated correctly.
1619 virtio_remap_pci(struct rte_pci_device *pci_dev, struct virtio_hw *hw)
1623 * We don't have to re-parse the PCI config space, since
1624 * rte_pci_map_device() makes sure the mapped address
1625 * in secondary process would equal to the one mapped in
1626 * the primary process: error will be returned if that
1627 * requirement is not met.
1629 * That said, we could simply reuse all cap pointers
1630 * (such as dev_cfg, common_cfg, etc.) parsed from the
1631 * primary process, which is stored in shared memory.
1633 if (rte_pci_map_device(pci_dev)) {
1634 PMD_INIT_LOG(DEBUG, "failed to map pci device!");
1638 if (rte_pci_ioport_map(pci_dev, 0, VTPCI_IO(hw)) < 0)
1646 virtio_set_vtpci_ops(struct virtio_hw *hw)
1648 #ifdef RTE_VIRTIO_USER
1649 if (hw->virtio_user_dev)
1650 VTPCI_OPS(hw) = &virtio_user_ops;
1654 VTPCI_OPS(hw) = &modern_ops;
1656 VTPCI_OPS(hw) = &legacy_ops;
1660 * This function is based on probe() function in virtio_pci.c
1661 * It returns 0 on success.
1664 eth_virtio_dev_init(struct rte_eth_dev *eth_dev)
1666 struct virtio_hw *hw = eth_dev->data->dev_private;
1669 RTE_BUILD_BUG_ON(RTE_PKTMBUF_HEADROOM < sizeof(struct virtio_net_hdr_mrg_rxbuf));
1671 eth_dev->dev_ops = &virtio_eth_dev_ops;
1673 if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
1674 if (!hw->virtio_user_dev) {
1675 ret = virtio_remap_pci(RTE_ETH_DEV_TO_PCI(eth_dev), hw);
1680 virtio_set_vtpci_ops(hw);
1681 set_rxtx_funcs(eth_dev);
1686 /* Allocate memory for storing MAC addresses */
1687 eth_dev->data->mac_addrs = rte_zmalloc("virtio", VIRTIO_MAX_MAC_ADDRS * ETHER_ADDR_LEN, 0);
1688 if (eth_dev->data->mac_addrs == NULL) {
1690 "Failed to allocate %d bytes needed to store MAC addresses",
1691 VIRTIO_MAX_MAC_ADDRS * ETHER_ADDR_LEN);
1695 hw->port_id = eth_dev->data->port_id;
1696 /* For virtio_user case the hw->virtio_user_dev is populated by
1697 * virtio_user_eth_dev_alloc() before eth_virtio_dev_init() is called.
1699 if (!hw->virtio_user_dev) {
1700 ret = vtpci_init(RTE_ETH_DEV_TO_PCI(eth_dev), hw);
1705 /* reset device and negotiate default features */
1706 ret = virtio_init_device(eth_dev, VIRTIO_PMD_DEFAULT_GUEST_FEATURES);
1710 /* Setup interrupt callback */
1711 if (eth_dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC)
1712 rte_intr_callback_register(eth_dev->intr_handle,
1713 virtio_interrupt_handler, eth_dev);
1718 rte_free(eth_dev->data->mac_addrs);
1723 eth_virtio_dev_uninit(struct rte_eth_dev *eth_dev)
1725 PMD_INIT_FUNC_TRACE();
1727 if (rte_eal_process_type() == RTE_PROC_SECONDARY)
1730 virtio_dev_stop(eth_dev);
1731 virtio_dev_close(eth_dev);
1733 eth_dev->dev_ops = NULL;
1734 eth_dev->tx_pkt_burst = NULL;
1735 eth_dev->rx_pkt_burst = NULL;
1737 rte_free(eth_dev->data->mac_addrs);
1738 eth_dev->data->mac_addrs = NULL;
1740 /* reset interrupt callback */
1741 if (eth_dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC)
1742 rte_intr_callback_unregister(eth_dev->intr_handle,
1743 virtio_interrupt_handler,
1745 if (eth_dev->device)
1746 rte_pci_unmap_device(RTE_ETH_DEV_TO_PCI(eth_dev));
1748 PMD_INIT_LOG(DEBUG, "dev_uninit completed");
1753 static int eth_virtio_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
1754 struct rte_pci_device *pci_dev)
1756 return rte_eth_dev_pci_generic_probe(pci_dev, sizeof(struct virtio_hw),
1757 eth_virtio_dev_init);
1760 static int eth_virtio_pci_remove(struct rte_pci_device *pci_dev)
1762 return rte_eth_dev_pci_generic_remove(pci_dev, eth_virtio_dev_uninit);
1765 static struct rte_pci_driver rte_virtio_pmd = {
1767 .name = "net_virtio",
1769 .id_table = pci_id_virtio_map,
1771 .probe = eth_virtio_pci_probe,
1772 .remove = eth_virtio_pci_remove,
1775 RTE_INIT(rte_virtio_pmd_init);
1777 rte_virtio_pmd_init(void)
1779 if (rte_eal_iopl_init() != 0) {
1780 PMD_INIT_LOG(ERR, "IOPL call failed - cannot use virtio PMD");
1784 rte_pci_register(&rte_virtio_pmd);
1788 * Configure virtio device
1789 * It returns 0 on success.
1792 virtio_dev_configure(struct rte_eth_dev *dev)
1794 const struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
1795 struct virtio_hw *hw = dev->data->dev_private;
1796 uint64_t req_features;
1799 PMD_INIT_LOG(DEBUG, "configure");
1800 req_features = VIRTIO_PMD_DEFAULT_GUEST_FEATURES;
1802 if (dev->data->dev_conf.intr_conf.rxq) {
1803 ret = virtio_init_device(dev, hw->req_guest_features);
1808 /* The name hw_ip_checksum is a bit confusing since it can be
1809 * set by the application to request L3 and/or L4 checksums. In
1810 * case of virtio, only L4 checksum is supported.
1812 if (rxmode->hw_ip_checksum)
1813 req_features |= (1ULL << VIRTIO_NET_F_GUEST_CSUM);
1815 if (rxmode->enable_lro)
1817 (1ULL << VIRTIO_NET_F_GUEST_TSO4) |
1818 (1ULL << VIRTIO_NET_F_GUEST_TSO6);
1820 /* if request features changed, reinit the device */
1821 if (req_features != hw->req_guest_features) {
1822 ret = virtio_init_device(dev, req_features);
1827 if (rxmode->hw_ip_checksum &&
1828 !vtpci_with_feature(hw, VIRTIO_NET_F_GUEST_CSUM)) {
1830 "rx checksum not available on this host");
1834 if (rxmode->enable_lro &&
1835 (!vtpci_with_feature(hw, VIRTIO_NET_F_GUEST_TSO4) ||
1836 !vtpci_with_feature(hw, VIRTIO_NET_F_GUEST_TSO6))) {
1838 "Large Receive Offload not available on this host");
1842 /* start control queue */
1843 if (vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_VQ))
1844 virtio_dev_cq_start(dev);
1846 hw->vlan_strip = rxmode->hw_vlan_strip;
1848 if (rxmode->hw_vlan_filter
1849 && !vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_VLAN)) {
1851 "vlan filtering not available on this host");
1855 if (dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC)
1856 /* Enable vector (0) for Link State Intrerrupt */
1857 if (VTPCI_OPS(hw)->set_config_irq(hw, 0) ==
1858 VIRTIO_MSI_NO_VECTOR) {
1859 PMD_DRV_LOG(ERR, "failed to set config vector");
1863 rte_spinlock_init(&hw->state_lock);
1865 hw->use_simple_rx = 1;
1866 hw->use_simple_tx = 1;
1868 #if defined RTE_ARCH_ARM64 || defined CONFIG_RTE_ARCH_ARM
1869 if (!rte_cpu_get_flag_enabled(RTE_CPUFLAG_NEON)) {
1870 hw->use_simple_rx = 0;
1871 hw->use_simple_tx = 0;
1874 if (vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF)) {
1875 hw->use_simple_rx = 0;
1876 hw->use_simple_tx = 0;
1879 if (rxmode->hw_ip_checksum)
1880 hw->use_simple_rx = 0;
1887 virtio_dev_start(struct rte_eth_dev *dev)
1889 uint16_t nb_queues, i;
1890 struct virtnet_rx *rxvq;
1891 struct virtnet_tx *txvq __rte_unused;
1892 struct virtio_hw *hw = dev->data->dev_private;
1895 /* Finish the initialization of the queues */
1896 for (i = 0; i < dev->data->nb_rx_queues; i++) {
1897 ret = virtio_dev_rx_queue_setup_finish(dev, i);
1901 for (i = 0; i < dev->data->nb_tx_queues; i++) {
1902 ret = virtio_dev_tx_queue_setup_finish(dev, i);
1907 /* check if lsc interrupt feature is enabled */
1908 if (dev->data->dev_conf.intr_conf.lsc) {
1909 if (!(dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC)) {
1910 PMD_DRV_LOG(ERR, "link status not supported by host");
1915 /* Enable uio/vfio intr/eventfd mapping: althrough we already did that
1916 * in device configure, but it could be unmapped when device is
1919 if (dev->data->dev_conf.intr_conf.lsc ||
1920 dev->data->dev_conf.intr_conf.rxq) {
1921 virtio_intr_disable(dev);
1923 if (virtio_intr_enable(dev) < 0) {
1924 PMD_DRV_LOG(ERR, "interrupt enable failed");
1929 /*Notify the backend
1930 *Otherwise the tap backend might already stop its queue due to fullness.
1931 *vhost backend will have no chance to be waked up
1933 nb_queues = RTE_MAX(dev->data->nb_rx_queues, dev->data->nb_tx_queues);
1934 if (hw->max_queue_pairs > 1) {
1935 if (virtio_set_multiple_queues(dev, nb_queues) != 0)
1939 PMD_INIT_LOG(DEBUG, "nb_queues=%d", nb_queues);
1941 for (i = 0; i < dev->data->nb_rx_queues; i++) {
1942 rxvq = dev->data->rx_queues[i];
1943 /* Flush the old packets */
1944 virtqueue_rxvq_flush(rxvq->vq);
1945 virtqueue_notify(rxvq->vq);
1948 for (i = 0; i < dev->data->nb_tx_queues; i++) {
1949 txvq = dev->data->tx_queues[i];
1950 virtqueue_notify(txvq->vq);
1953 PMD_INIT_LOG(DEBUG, "Notified backend at initialization");
1955 for (i = 0; i < dev->data->nb_rx_queues; i++) {
1956 rxvq = dev->data->rx_queues[i];
1957 VIRTQUEUE_DUMP(rxvq->vq);
1960 for (i = 0; i < dev->data->nb_tx_queues; i++) {
1961 txvq = dev->data->tx_queues[i];
1962 VIRTQUEUE_DUMP(txvq->vq);
1965 set_rxtx_funcs(dev);
1968 /* Initialize Link state */
1969 virtio_dev_link_update(dev, 0);
1974 static void virtio_dev_free_mbufs(struct rte_eth_dev *dev)
1976 struct rte_mbuf *buf;
1977 int i, mbuf_num = 0;
1979 for (i = 0; i < dev->data->nb_rx_queues; i++) {
1980 struct virtnet_rx *rxvq = dev->data->rx_queues[i];
1983 "Before freeing rxq[%d] used and unused buf", i);
1984 VIRTQUEUE_DUMP(rxvq->vq);
1986 PMD_INIT_LOG(DEBUG, "rx_queues[%d]=%p", i, rxvq);
1987 while ((buf = virtqueue_detatch_unused(rxvq->vq)) != NULL) {
1988 rte_pktmbuf_free(buf);
1992 PMD_INIT_LOG(DEBUG, "free %d mbufs", mbuf_num);
1994 "After freeing rxq[%d] used and unused buf", i);
1995 VIRTQUEUE_DUMP(rxvq->vq);
1998 for (i = 0; i < dev->data->nb_tx_queues; i++) {
1999 struct virtnet_tx *txvq = dev->data->tx_queues[i];
2002 "Before freeing txq[%d] used and unused bufs",
2004 VIRTQUEUE_DUMP(txvq->vq);
2007 while ((buf = virtqueue_detatch_unused(txvq->vq)) != NULL) {
2008 rte_pktmbuf_free(buf);
2012 PMD_INIT_LOG(DEBUG, "free %d mbufs", mbuf_num);
2014 "After freeing txq[%d] used and unused buf", i);
2015 VIRTQUEUE_DUMP(txvq->vq);
2020 * Stop device: disable interrupt and mark link down
2023 virtio_dev_stop(struct rte_eth_dev *dev)
2025 struct virtio_hw *hw = dev->data->dev_private;
2026 struct rte_eth_link link;
2027 struct rte_intr_conf *intr_conf = &dev->data->dev_conf.intr_conf;
2029 PMD_INIT_LOG(DEBUG, "stop");
2031 rte_spinlock_lock(&hw->state_lock);
2032 if (intr_conf->lsc || intr_conf->rxq)
2033 virtio_intr_disable(dev);
2036 memset(&link, 0, sizeof(link));
2037 virtio_dev_atomic_write_link_status(dev, &link);
2038 rte_spinlock_unlock(&hw->state_lock);
2042 virtio_dev_link_update(struct rte_eth_dev *dev, __rte_unused int wait_to_complete)
2044 struct rte_eth_link link, old;
2046 struct virtio_hw *hw = dev->data->dev_private;
2047 memset(&link, 0, sizeof(link));
2048 virtio_dev_atomic_read_link_status(dev, &link);
2050 link.link_duplex = ETH_LINK_FULL_DUPLEX;
2051 link.link_speed = ETH_SPEED_NUM_10G;
2053 if (hw->started == 0) {
2054 link.link_status = ETH_LINK_DOWN;
2055 } else if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS)) {
2056 PMD_INIT_LOG(DEBUG, "Get link status from hw");
2057 vtpci_read_dev_config(hw,
2058 offsetof(struct virtio_net_config, status),
2059 &status, sizeof(status));
2060 if ((status & VIRTIO_NET_S_LINK_UP) == 0) {
2061 link.link_status = ETH_LINK_DOWN;
2062 PMD_INIT_LOG(DEBUG, "Port %d is down",
2063 dev->data->port_id);
2065 link.link_status = ETH_LINK_UP;
2066 PMD_INIT_LOG(DEBUG, "Port %d is up",
2067 dev->data->port_id);
2070 link.link_status = ETH_LINK_UP;
2072 virtio_dev_atomic_write_link_status(dev, &link);
2074 return (old.link_status == link.link_status) ? -1 : 0;
2078 virtio_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask)
2080 const struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
2081 struct virtio_hw *hw = dev->data->dev_private;
2083 if (mask & ETH_VLAN_FILTER_MASK) {
2084 if (rxmode->hw_vlan_filter &&
2085 !vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_VLAN)) {
2088 "vlan filtering not available on this host");
2094 if (mask & ETH_VLAN_STRIP_MASK)
2095 hw->vlan_strip = rxmode->hw_vlan_strip;
2101 virtio_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
2103 uint64_t tso_mask, host_features;
2104 struct virtio_hw *hw = dev->data->dev_private;
2106 dev_info->speed_capa = ETH_LINK_SPEED_10G; /* fake value */
2108 dev_info->pci_dev = dev->device ? RTE_ETH_DEV_TO_PCI(dev) : NULL;
2109 dev_info->max_rx_queues =
2110 RTE_MIN(hw->max_queue_pairs, VIRTIO_MAX_RX_QUEUES);
2111 dev_info->max_tx_queues =
2112 RTE_MIN(hw->max_queue_pairs, VIRTIO_MAX_TX_QUEUES);
2113 dev_info->min_rx_bufsize = VIRTIO_MIN_RX_BUFSIZE;
2114 dev_info->max_rx_pktlen = VIRTIO_MAX_RX_PKTLEN;
2115 dev_info->max_mac_addrs = VIRTIO_MAX_MAC_ADDRS;
2116 dev_info->default_txconf = (struct rte_eth_txconf) {
2117 .txq_flags = ETH_TXQ_FLAGS_NOOFFLOADS
2120 host_features = VTPCI_OPS(hw)->get_features(hw);
2121 dev_info->rx_offload_capa = 0;
2122 if (host_features & (1ULL << VIRTIO_NET_F_GUEST_CSUM)) {
2123 dev_info->rx_offload_capa |=
2124 DEV_RX_OFFLOAD_TCP_CKSUM |
2125 DEV_RX_OFFLOAD_UDP_CKSUM;
2127 tso_mask = (1ULL << VIRTIO_NET_F_GUEST_TSO4) |
2128 (1ULL << VIRTIO_NET_F_GUEST_TSO6);
2129 if ((host_features & tso_mask) == tso_mask)
2130 dev_info->rx_offload_capa |= DEV_RX_OFFLOAD_TCP_LRO;
2132 dev_info->tx_offload_capa = 0;
2133 if (hw->guest_features & (1ULL << VIRTIO_NET_F_CSUM)) {
2134 dev_info->tx_offload_capa |=
2135 DEV_TX_OFFLOAD_UDP_CKSUM |
2136 DEV_TX_OFFLOAD_TCP_CKSUM;
2138 tso_mask = (1ULL << VIRTIO_NET_F_HOST_TSO4) |
2139 (1ULL << VIRTIO_NET_F_HOST_TSO6);
2140 if ((hw->guest_features & tso_mask) == tso_mask)
2141 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_TCP_TSO;
2145 * It enables testpmd to collect per queue stats.
2148 virtio_dev_queue_stats_mapping_set(__rte_unused struct rte_eth_dev *eth_dev,
2149 __rte_unused uint16_t queue_id, __rte_unused uint8_t stat_idx,
2150 __rte_unused uint8_t is_rx)
2155 RTE_PMD_EXPORT_NAME(net_virtio, __COUNTER__);
2156 RTE_PMD_REGISTER_PCI_TABLE(net_virtio, pci_id_virtio_map);
2157 RTE_PMD_REGISTER_KMOD_DEP(net_virtio, "* igb_uio | uio_pci_generic | vfio-pci");
2159 RTE_INIT(virtio_init_log);
2161 virtio_init_log(void)
2163 virtio_logtype_init = rte_log_register("pmd.virtio.init");
2164 if (virtio_logtype_init >= 0)
2165 rte_log_set_level(virtio_logtype_init, RTE_LOG_NOTICE);
2166 virtio_logtype_driver = rte_log_register("pmd.virtio.driver");
2167 if (virtio_logtype_driver >= 0)
2168 rte_log_set_level(virtio_logtype_driver, RTE_LOG_NOTICE);