-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2016 Intel Corporation
*/
#include <stdint.h>
#include <rte_udp.h>
#include <rte_sctp.h>
#include <rte_arp.h>
+#include <rte_spinlock.h>
#include "iotlb.h"
#include "vhost.h"
net_hdr->gso_size = m_buf->tso_segsz;
net_hdr->hdr_len = m_buf->l2_len + m_buf->l3_len
+ m_buf->l4_len;
+ } else if (m_buf->ol_flags & PKT_TX_UDP_SEG) {
+ net_hdr->gso_type = VIRTIO_NET_HDR_GSO_UDP;
+ net_hdr->gso_size = m_buf->tso_segsz;
+ net_hdr->hdr_len = m_buf->l2_len + m_buf->l3_len +
+ m_buf->l4_len;
} else {
ASSIGN_UNLESS_EQUAL(net_hdr->gso_type, 0);
ASSIGN_UNLESS_EQUAL(net_hdr->gso_size, 0);
uint16_t used_idx;
uint32_t i, sz;
- LOG_DEBUG(VHOST_DATA, "(%d) %s\n", dev->vid, __func__);
+ VHOST_LOG_DEBUG(VHOST_DATA, "(%d) %s\n", dev->vid, __func__);
if (unlikely(!is_valid_virt_queue_idx(queue_id, 0, dev->nr_vring))) {
RTE_LOG(ERR, VHOST_DATA, "(%d) %s: invalid virtqueue idx %d.\n",
dev->vid, __func__, queue_id);
}
vq = dev->virtqueue[queue_id];
+
+ rte_spinlock_lock(&vq->access_lock);
+
if (unlikely(vq->enabled == 0))
- return 0;
+ goto out_access_unlock;
+
+ if (dev->features & (1ULL << VIRTIO_F_IOMMU_PLATFORM))
+ vhost_user_iotlb_rd_lock(vq);
+
+ if (unlikely(vq->access_ok == 0)) {
+ if (unlikely(vring_translate(dev, vq) < 0)) {
+ count = 0;
+ goto out;
+ }
+ }
avail_idx = *((volatile uint16_t *)&vq->avail->idx);
start_idx = vq->last_used_idx;
count = RTE_MIN(count, free_entries);
count = RTE_MIN(count, (uint32_t)MAX_PKT_BURST);
if (count == 0)
- return 0;
+ goto out;
- LOG_DEBUG(VHOST_DATA, "(%d) start_idx %d | end_idx %d\n",
+ VHOST_LOG_DEBUG(VHOST_DATA, "(%d) start_idx %d | end_idx %d\n",
dev->vid, start_idx, start_idx + count);
vq->batch_copy_nb_elems = 0;
}
rte_prefetch0(&vq->desc[desc_indexes[0]]);
-
- if (dev->features & (1ULL << VIRTIO_F_IOMMU_PLATFORM))
- vhost_user_iotlb_rd_lock(vq);
-
for (i = 0; i < count; i++) {
uint16_t desc_idx = desc_indexes[i];
int err;
do_data_copy_enqueue(dev, vq);
- if (dev->features & (1ULL << VIRTIO_F_IOMMU_PLATFORM))
- vhost_user_iotlb_rd_unlock(vq);
-
rte_smp_wmb();
*(volatile uint16_t *)&vq->used->idx += count;
offsetof(struct vring_used, idx),
sizeof(vq->used->idx));
- /* flush used->idx update before we read avail->flags. */
- rte_mb();
+ vhost_vring_call(dev, vq);
+out:
+ if (dev->features & (1ULL << VIRTIO_F_IOMMU_PLATFORM))
+ vhost_user_iotlb_rd_unlock(vq);
+
+out_access_unlock:
+ rte_spinlock_unlock(&vq->access_lock);
- /* Kick the guest if necessary. */
- if (!(vq->avail->flags & VRING_AVAIL_F_NO_INTERRUPT)
- && (vq->callfd >= 0))
- eventfd_write(vq->callfd, (eventfd_t)1);
return count;
}
hdr_phys_addr = buf_vec[vec_idx].buf_addr;
rte_prefetch0((void *)(uintptr_t)hdr_addr);
- LOG_DEBUG(VHOST_DATA, "(%d) RX: num merge buffers %d\n",
+ VHOST_LOG_DEBUG(VHOST_DATA, "(%d) RX: num merge buffers %d\n",
dev->vid, num_buffers);
desc_avail = buf_vec[vec_idx].buf_len - dev->vhost_hlen;
struct buf_vector buf_vec[BUF_VECTOR_MAX];
uint16_t avail_head;
- LOG_DEBUG(VHOST_DATA, "(%d) %s\n", dev->vid, __func__);
+ VHOST_LOG_DEBUG(VHOST_DATA, "(%d) %s\n", dev->vid, __func__);
if (unlikely(!is_valid_virt_queue_idx(queue_id, 0, dev->nr_vring))) {
RTE_LOG(ERR, VHOST_DATA, "(%d) %s: invalid virtqueue idx %d.\n",
dev->vid, __func__, queue_id);
}
vq = dev->virtqueue[queue_id];
+
+ rte_spinlock_lock(&vq->access_lock);
+
if (unlikely(vq->enabled == 0))
- return 0;
+ goto out_access_unlock;
+
+ if (dev->features & (1ULL << VIRTIO_F_IOMMU_PLATFORM))
+ vhost_user_iotlb_rd_lock(vq);
+
+ if (unlikely(vq->access_ok == 0))
+ if (unlikely(vring_translate(dev, vq) < 0))
+ goto out;
count = RTE_MIN((uint32_t)MAX_PKT_BURST, count);
if (count == 0)
- return 0;
+ goto out;
vq->batch_copy_nb_elems = 0;
vq->shadow_used_idx = 0;
avail_head = *((volatile uint16_t *)&vq->avail->idx);
-
- if (dev->features & (1ULL << VIRTIO_F_IOMMU_PLATFORM))
- vhost_user_iotlb_rd_lock(vq);
-
for (pkt_idx = 0; pkt_idx < count; pkt_idx++) {
uint32_t pkt_len = pkts[pkt_idx]->pkt_len + dev->vhost_hlen;
if (unlikely(reserve_avail_buf_mergeable(dev, vq,
pkt_len, buf_vec, &num_buffers,
avail_head) < 0)) {
- LOG_DEBUG(VHOST_DATA,
+ VHOST_LOG_DEBUG(VHOST_DATA,
"(%d) failed to get enough desc from vring\n",
dev->vid);
vq->shadow_used_idx -= num_buffers;
break;
}
- LOG_DEBUG(VHOST_DATA, "(%d) current index %d | end index %d\n",
+ VHOST_LOG_DEBUG(VHOST_DATA, "(%d) current index %d | end index %d\n",
dev->vid, vq->last_avail_idx,
vq->last_avail_idx + num_buffers);
do_data_copy_enqueue(dev, vq);
- if (dev->features & (1ULL << VIRTIO_F_IOMMU_PLATFORM))
- vhost_user_iotlb_rd_unlock(vq);
-
if (likely(vq->shadow_used_idx)) {
flush_shadow_used_ring(dev, vq);
+ vhost_vring_call(dev, vq);
+ }
- /* flush used->idx update before we read avail->flags. */
- rte_mb();
+out:
+ if (dev->features & (1ULL << VIRTIO_F_IOMMU_PLATFORM))
+ vhost_user_iotlb_rd_unlock(vq);
- /* Kick the guest if necessary. */
- if (!(vq->avail->flags & VRING_AVAIL_F_NO_INTERRUPT)
- && (vq->callfd >= 0))
- eventfd_write(vq->callfd, (eventfd_t)1);
- }
+out_access_unlock:
+ rte_spinlock_unlock(&vq->access_lock);
return pkt_idx;
}
if (!dev)
return 0;
+ if (unlikely(!(dev->flags & VIRTIO_DEV_BUILTIN_VIRTIO_NET))) {
+ RTE_LOG(ERR, VHOST_DATA,
+ "(%d) %s: built-in vhost net backend is disabled.\n",
+ dev->vid, __func__);
+ return 0;
+ }
+
if (dev->features & (1 << VIRTIO_NET_F_MRG_RXBUF))
return virtio_dev_merge_rx(dev, queue_id, pkts, count);
else
m->tso_segsz = hdr->gso_size;
m->l4_len = (tcp_hdr->data_off & 0xf0) >> 2;
break;
+ case VIRTIO_NET_HDR_GSO_UDP:
+ m->ol_flags |= PKT_TX_UDP_SEG;
+ m->tso_segsz = hdr->gso_size;
+ m->l4_len = sizeof(struct udp_hdr);
+ break;
default:
RTE_LOG(WARNING, VHOST_DATA,
"unsupported gso type %u.\n", hdr->gso_type);
}
}
-#define RARP_PKT_SIZE 64
-
-static int
-make_rarp_packet(struct rte_mbuf *rarp_mbuf, const struct ether_addr *mac)
-{
- struct ether_hdr *eth_hdr;
- struct arp_hdr *rarp;
-
- if (rarp_mbuf->buf_len < 64) {
- RTE_LOG(WARNING, VHOST_DATA,
- "failed to make RARP; mbuf size too small %u (< %d)\n",
- rarp_mbuf->buf_len, RARP_PKT_SIZE);
- return -1;
- }
-
- /* Ethernet header. */
- eth_hdr = rte_pktmbuf_mtod_offset(rarp_mbuf, struct ether_hdr *, 0);
- memset(eth_hdr->d_addr.addr_bytes, 0xff, ETHER_ADDR_LEN);
- ether_addr_copy(mac, ð_hdr->s_addr);
- eth_hdr->ether_type = htons(ETHER_TYPE_RARP);
-
- /* RARP header. */
- rarp = (struct arp_hdr *)(eth_hdr + 1);
- rarp->arp_hrd = htons(ARP_HRD_ETHER);
- rarp->arp_pro = htons(ETHER_TYPE_IPv4);
- rarp->arp_hln = ETHER_ADDR_LEN;
- rarp->arp_pln = 4;
- rarp->arp_op = htons(ARP_OP_REVREQUEST);
-
- ether_addr_copy(mac, &rarp->arp_data.arp_sha);
- ether_addr_copy(mac, &rarp->arp_data.arp_tha);
- memset(&rarp->arp_data.arp_sip, 0x00, 4);
- memset(&rarp->arp_data.arp_tip, 0x00, 4);
-
- rarp_mbuf->pkt_len = rarp_mbuf->data_len = RARP_PKT_SIZE;
-
- return 0;
-}
-
static __rte_always_inline void
put_zmbuf(struct zcopy_mbuf *zmbuf)
{
desc->addr + desc_offset, cpy_len)))) {
cur->data_len = cpy_len;
cur->data_off = 0;
- cur->buf_addr = (void *)(uintptr_t)desc_addr;
- cur->buf_physaddr = hpa;
+ cur->buf_addr = (void *)(uintptr_t)(desc_addr
+ + desc_offset);
+ cur->buf_iova = hpa;
/*
* In zero copy mode, one mbuf can only reference data
mbuf_avail = cpy_len;
} else {
if (likely(cpy_len > MAX_BATCH_LEN ||
- copy_nb >= vq->size)) {
+ copy_nb >= vq->size ||
+ (hdr && cur == m))) {
rte_memcpy(rte_pktmbuf_mtod_offset(cur, void *,
mbuf_offset),
(void *)((uintptr_t)(desc_addr +
vq->used->idx += count;
vhost_log_used_vring(dev, vq, offsetof(struct vring_used, idx),
sizeof(vq->used->idx));
-
- /* Kick guest if required. */
- if (!(vq->avail->flags & VRING_AVAIL_F_NO_INTERRUPT)
- && (vq->callfd >= 0))
- eventfd_write(vq->callfd, (eventfd_t)1);
+ vhost_vring_call(dev, vq);
}
static __rte_always_inline struct zcopy_mbuf *
return true;
}
+static __rte_always_inline void
+restore_mbuf(struct rte_mbuf *m)
+{
+ uint32_t mbuf_size, priv_size;
+
+ while (m) {
+ priv_size = rte_pktmbuf_priv_size(m->pool);
+ mbuf_size = sizeof(struct rte_mbuf) + priv_size;
+ /* start of buffer is after mbuf structure and priv data */
+
+ m->buf_addr = (char *)m + mbuf_size;
+ m->buf_iova = rte_mempool_virt2iova(m) + mbuf_size;
+ m = m->next;
+ }
+}
+
uint16_t
rte_vhost_dequeue_burst(int vid, uint16_t queue_id,
struct rte_mempool *mbuf_pool, struct rte_mbuf **pkts, uint16_t count)
if (!dev)
return 0;
+ if (unlikely(!(dev->flags & VIRTIO_DEV_BUILTIN_VIRTIO_NET))) {
+ RTE_LOG(ERR, VHOST_DATA,
+ "(%d) %s: built-in vhost net backend is disabled.\n",
+ dev->vid, __func__);
+ return 0;
+ }
+
if (unlikely(!is_valid_virt_queue_idx(queue_id, 1, dev->nr_vring))) {
RTE_LOG(ERR, VHOST_DATA, "(%d) %s: invalid virtqueue idx %d.\n",
dev->vid, __func__, queue_id);
}
vq = dev->virtqueue[queue_id];
- if (unlikely(vq->enabled == 0))
+
+ if (unlikely(rte_spinlock_trylock(&vq->access_lock) == 0))
return 0;
+ if (unlikely(vq->enabled == 0))
+ goto out_access_unlock;
+
vq->batch_copy_nb_elems = 0;
+ if (dev->features & (1ULL << VIRTIO_F_IOMMU_PLATFORM))
+ vhost_user_iotlb_rd_lock(vq);
+
+ if (unlikely(vq->access_ok == 0))
+ if (unlikely(vring_translate(dev, vq) < 0))
+ goto out;
+
if (unlikely(dev->dequeue_zero_copy)) {
struct zcopy_mbuf *zmbuf, *next;
int nr_updated = 0;
nr_updated += 1;
TAILQ_REMOVE(&vq->zmbuf_list, zmbuf, next);
+ restore_mbuf(zmbuf->mbuf);
rte_pktmbuf_free(zmbuf->mbuf);
put_zmbuf(zmbuf);
vq->nr_zmbuf -= 1;
rte_atomic16_cmpset((volatile uint16_t *)
&dev->broadcast_rarp.cnt, 1, 0))) {
- rarp_mbuf = rte_pktmbuf_alloc(mbuf_pool);
+ rarp_mbuf = rte_net_make_rarp_packet(mbuf_pool, &dev->mac);
if (rarp_mbuf == NULL) {
RTE_LOG(ERR, VHOST_DATA,
- "Failed to allocate memory for mbuf.\n");
+ "Failed to make RARP packet.\n");
return 0;
}
-
- if (make_rarp_packet(rarp_mbuf, &dev->mac)) {
- rte_pktmbuf_free(rarp_mbuf);
- rarp_mbuf = NULL;
- } else {
- count -= 1;
- }
+ count -= 1;
}
free_entries = *((volatile uint16_t *)&vq->avail->idx) -
if (free_entries == 0)
goto out;
- LOG_DEBUG(VHOST_DATA, "(%d) %s\n", dev->vid, __func__);
+ VHOST_LOG_DEBUG(VHOST_DATA, "(%d) %s\n", dev->vid, __func__);
/* Prefetch available and used ring */
avail_idx = vq->last_avail_idx & (vq->size - 1);
count = RTE_MIN(count, MAX_PKT_BURST);
count = RTE_MIN(count, free_entries);
- LOG_DEBUG(VHOST_DATA, "(%d) about to dequeue %u buffers\n",
+ VHOST_LOG_DEBUG(VHOST_DATA, "(%d) about to dequeue %u buffers\n",
dev->vid, count);
/* Retrieve all of the head indexes first to avoid caching issues. */
/* Prefetch descriptor index. */
rte_prefetch0(&vq->desc[desc_indexes[0]]);
-
- if (dev->features & (1ULL << VIRTIO_F_IOMMU_PLATFORM))
- vhost_user_iotlb_rd_lock(vq);
-
for (i = 0; i < count; i++) {
struct vring_desc *desc;
uint16_t sz, idx;
desc = (struct vring_desc *)(uintptr_t)
vhost_iova_to_vva(dev, vq,
vq->desc[desc_indexes[i]].addr,
- sizeof(*desc),
+ vq->desc[desc_indexes[i]].len,
VHOST_ACCESS_RO);
if (unlikely(!desc))
break;
TAILQ_INSERT_TAIL(&vq->zmbuf_list, zmbuf, next);
}
}
- if (dev->features & (1ULL << VIRTIO_F_IOMMU_PLATFORM))
- vhost_user_iotlb_rd_unlock(vq);
-
vq->last_avail_idx += i;
if (likely(dev->dequeue_zero_copy == 0)) {
}
out:
+ if (dev->features & (1ULL << VIRTIO_F_IOMMU_PLATFORM))
+ vhost_user_iotlb_rd_unlock(vq);
+
+out_access_unlock:
+ rte_spinlock_unlock(&vq->access_lock);
+
if (unlikely(rarp_mbuf != NULL)) {
/*
* Inject it to the head of "pkts" array, so that switch's mac