diff options
Diffstat (limited to 'src/dpdk22/drivers/net/virtio/virtio_ethdev.c')
| -rw-r--r-- | src/dpdk22/drivers/net/virtio/virtio_ethdev.c | 1691 |
1 files changed, 0 insertions, 1691 deletions
diff --git a/src/dpdk22/drivers/net/virtio/virtio_ethdev.c b/src/dpdk22/drivers/net/virtio/virtio_ethdev.c deleted file mode 100644 index d9283390..00000000 --- a/src/dpdk22/drivers/net/virtio/virtio_ethdev.c +++ /dev/null @@ -1,1691 +0,0 @@ -/*- - * BSD LICENSE - * - * Copyright(c) 2010-2015 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. - */ - -#include <stdint.h> -#include <string.h> -#include <stdio.h> -#include <errno.h> -#include <unistd.h> -#ifdef RTE_EXEC_ENV_LINUXAPP -#include <dirent.h> -#include <fcntl.h> -#endif - -#include <rte_ethdev.h> -#include <rte_memcpy.h> -#include <rte_string_fns.h> -#include <rte_memzone.h> -#include <rte_malloc.h> -#include <rte_atomic.h> -#include <rte_branch_prediction.h> -#include <rte_pci.h> -#include <rte_ether.h> -#include <rte_common.h> -#include <rte_errno.h> - -#include <rte_memory.h> -#include <rte_eal.h> -#include <rte_dev.h> - -#include "virtio_ethdev.h" -#include "virtio_pci.h" -#include "virtio_logs.h" -#include "virtqueue.h" -#include "virtio_rxtx.h" - - -static int eth_virtio_dev_init(struct rte_eth_dev *eth_dev); -static int eth_virtio_dev_uninit(struct rte_eth_dev *eth_dev); -static int virtio_dev_configure(struct rte_eth_dev *dev); -static int virtio_dev_start(struct rte_eth_dev *dev); -static void virtio_dev_stop(struct rte_eth_dev *dev); -static void virtio_dev_promiscuous_enable(struct rte_eth_dev *dev); -static void virtio_dev_promiscuous_disable(struct rte_eth_dev *dev); -static void virtio_dev_allmulticast_enable(struct rte_eth_dev *dev); -static void virtio_dev_allmulticast_disable(struct rte_eth_dev *dev); -static void virtio_dev_info_get(struct rte_eth_dev *dev, - struct rte_eth_dev_info *dev_info); -static int virtio_dev_link_update(struct rte_eth_dev *dev, - __rte_unused int wait_to_complete); - -static void virtio_set_hwaddr(struct virtio_hw *hw); -static void virtio_get_hwaddr(struct virtio_hw *hw); - -static void virtio_dev_stats_get(struct rte_eth_dev *dev, - struct rte_eth_stats *stats); -static int virtio_dev_xstats_get(struct rte_eth_dev *dev, - struct rte_eth_xstats *xstats, unsigned n); -static void virtio_dev_stats_reset(struct rte_eth_dev *dev); -static void virtio_dev_free_mbufs(struct rte_eth_dev *dev); -static int virtio_vlan_filter_set(struct rte_eth_dev *dev, - uint16_t vlan_id, int on); -static void virtio_mac_addr_add(struct rte_eth_dev *dev, - struct ether_addr *mac_addr, - uint32_t index, uint32_t vmdq __rte_unused); -static void virtio_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index); -static void virtio_mac_addr_set(struct rte_eth_dev *dev, - struct ether_addr *mac_addr); - -static int virtio_dev_queue_stats_mapping_set( - __rte_unused struct rte_eth_dev *eth_dev, - __rte_unused uint16_t queue_id, - __rte_unused uint8_t stat_idx, - __rte_unused uint8_t is_rx); - -/* - * The set of PCI devices this driver supports - */ -static const struct rte_pci_id pci_id_virtio_map[] = { - -#define RTE_PCI_DEV_ID_DECL_VIRTIO(vend, dev) {RTE_PCI_DEVICE(vend, dev)}, -#include "rte_pci_dev_ids.h" - -{ .vendor_id = 0, /* sentinel */ }, -}; - -struct rte_virtio_xstats_name_off { - char name[RTE_ETH_XSTATS_NAME_SIZE]; - unsigned offset; -}; - -/* [rt]x_qX_ is prepended to the name string here */ -static const struct rte_virtio_xstats_name_off rte_virtio_q_stat_strings[] = { - {"good_packets", offsetof(struct virtqueue, packets)}, - {"good_bytes", offsetof(struct virtqueue, bytes)}, - {"errors", offsetof(struct virtqueue, errors)}, - {"multicast_packets", offsetof(struct virtqueue, multicast)}, - {"broadcast_packets", offsetof(struct virtqueue, broadcast)}, - {"undersize_packets", offsetof(struct virtqueue, size_bins[0])}, - {"size_64_packets", offsetof(struct virtqueue, size_bins[1])}, - {"size_65_127_packets", offsetof(struct virtqueue, size_bins[2])}, - {"size_128_255_packets", offsetof(struct virtqueue, size_bins[3])}, - {"size_256_511_packets", offsetof(struct virtqueue, size_bins[4])}, - {"size_512_1023_packets", offsetof(struct virtqueue, size_bins[5])}, - {"size_1024_1517_packets", offsetof(struct virtqueue, size_bins[6])}, - {"size_1518_max_packets", offsetof(struct virtqueue, size_bins[7])}, -}; - -#define VIRTIO_NB_Q_XSTATS (sizeof(rte_virtio_q_stat_strings) / \ - sizeof(rte_virtio_q_stat_strings[0])) - -static int -virtio_send_command(struct virtqueue *vq, struct virtio_pmd_ctrl *ctrl, - int *dlen, int pkt_num) -{ - uint32_t head, i; - int k, sum = 0; - virtio_net_ctrl_ack status = ~0; - struct virtio_pmd_ctrl result; - - ctrl->status = status; - - if (!(vq && vq->hw->cvq)) { - PMD_INIT_LOG(ERR, - "%s(): Control queue is not supported.", - __func__); - return -1; - } - head = vq->vq_desc_head_idx; - - PMD_INIT_LOG(DEBUG, "vq->vq_desc_head_idx = %d, status = %d, " - "vq->hw->cvq = %p vq = %p", - vq->vq_desc_head_idx, status, vq->hw->cvq, vq); - - if ((vq->vq_free_cnt < ((uint32_t)pkt_num + 2)) || (pkt_num < 1)) - return -1; - - memcpy(vq->virtio_net_hdr_mz->addr, ctrl, - sizeof(struct virtio_pmd_ctrl)); - - /* - * Format is enforced in qemu code: - * One TX packet for header; - * At least one TX packet per argument; - * One RX packet for ACK. - */ - vq->vq_ring.desc[head].flags = VRING_DESC_F_NEXT; - vq->vq_ring.desc[head].addr = vq->virtio_net_hdr_mz->phys_addr; - vq->vq_ring.desc[head].len = sizeof(struct virtio_net_ctrl_hdr); - vq->vq_free_cnt--; - i = vq->vq_ring.desc[head].next; - - for (k = 0; k < pkt_num; k++) { - vq->vq_ring.desc[i].flags = VRING_DESC_F_NEXT; - vq->vq_ring.desc[i].addr = vq->virtio_net_hdr_mz->phys_addr - + sizeof(struct virtio_net_ctrl_hdr) - + sizeof(ctrl->status) + sizeof(uint8_t)*sum; - vq->vq_ring.desc[i].len = dlen[k]; - sum += dlen[k]; - vq->vq_free_cnt--; - i = vq->vq_ring.desc[i].next; - } - - vq->vq_ring.desc[i].flags = VRING_DESC_F_WRITE; - vq->vq_ring.desc[i].addr = vq->virtio_net_hdr_mz->phys_addr - + sizeof(struct virtio_net_ctrl_hdr); - vq->vq_ring.desc[i].len = sizeof(ctrl->status); - vq->vq_free_cnt--; - - vq->vq_desc_head_idx = vq->vq_ring.desc[i].next; - - vq_update_avail_ring(vq, head); - vq_update_avail_idx(vq); - - PMD_INIT_LOG(DEBUG, "vq->vq_queue_index = %d", vq->vq_queue_index); - - virtqueue_notify(vq); - - rte_rmb(); - while (vq->vq_used_cons_idx == vq->vq_ring.used->idx) { - rte_rmb(); - usleep(100); - } - - while (vq->vq_used_cons_idx != vq->vq_ring.used->idx) { - uint32_t idx, desc_idx, used_idx; - struct vring_used_elem *uep; - - used_idx = (uint32_t)(vq->vq_used_cons_idx - & (vq->vq_nentries - 1)); - uep = &vq->vq_ring.used->ring[used_idx]; - idx = (uint32_t) uep->id; - desc_idx = idx; - - while (vq->vq_ring.desc[desc_idx].flags & VRING_DESC_F_NEXT) { - desc_idx = vq->vq_ring.desc[desc_idx].next; - vq->vq_free_cnt++; - } - - vq->vq_ring.desc[desc_idx].next = vq->vq_desc_head_idx; - vq->vq_desc_head_idx = idx; - - vq->vq_used_cons_idx++; - vq->vq_free_cnt++; - } - - PMD_INIT_LOG(DEBUG, "vq->vq_free_cnt=%d\nvq->vq_desc_head_idx=%d", - vq->vq_free_cnt, vq->vq_desc_head_idx); - - memcpy(&result, vq->virtio_net_hdr_mz->addr, - sizeof(struct virtio_pmd_ctrl)); - - return result.status; -} - -static int -virtio_set_multiple_queues(struct rte_eth_dev *dev, uint16_t nb_queues) -{ - struct virtio_hw *hw = dev->data->dev_private; - struct virtio_pmd_ctrl ctrl; - int dlen[1]; - int ret; - - ctrl.hdr.class = VIRTIO_NET_CTRL_MQ; - ctrl.hdr.cmd = VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET; - memcpy(ctrl.data, &nb_queues, sizeof(uint16_t)); - - dlen[0] = sizeof(uint16_t); - - ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1); - if (ret) { - PMD_INIT_LOG(ERR, "Multiqueue configured but send command " - "failed, this is too late now..."); - return -EINVAL; - } - - return 0; -} - -void -virtio_dev_queue_release(struct virtqueue *vq) { - struct virtio_hw *hw; - - if (vq) { - hw = vq->hw; - /* Select and deactivate the queue */ - VIRTIO_WRITE_REG_2(hw, VIRTIO_PCI_QUEUE_SEL, vq->vq_queue_index); - VIRTIO_WRITE_REG_4(hw, VIRTIO_PCI_QUEUE_PFN, 0); - - rte_free(vq->sw_ring); - rte_free(vq); - } -} - -int virtio_dev_queue_setup(struct rte_eth_dev *dev, - int queue_type, - uint16_t queue_idx, - uint16_t vtpci_queue_idx, - uint16_t nb_desc, - unsigned int socket_id, - struct virtqueue **pvq) -{ - char vq_name[VIRTQUEUE_MAX_NAME_SZ]; - const struct rte_memzone *mz; - unsigned int vq_size, size; - struct virtio_hw *hw = dev->data->dev_private; - struct virtqueue *vq = NULL; - - /* Write the virtqueue index to the Queue Select Field */ - VIRTIO_WRITE_REG_2(hw, VIRTIO_PCI_QUEUE_SEL, vtpci_queue_idx); - PMD_INIT_LOG(DEBUG, "selecting queue: %u", vtpci_queue_idx); - - /* - * Read the virtqueue size from the Queue Size field - * Always power of 2 and if 0 virtqueue does not exist - */ - vq_size = VIRTIO_READ_REG_2(hw, VIRTIO_PCI_QUEUE_NUM); - PMD_INIT_LOG(DEBUG, "vq_size: %u nb_desc:%u", vq_size, nb_desc); - if (vq_size == 0) { - PMD_INIT_LOG(ERR, "%s: virtqueue does not exist", __func__); - return -EINVAL; - } - - if (!rte_is_power_of_2(vq_size)) { - PMD_INIT_LOG(ERR, "%s: virtqueue size is not powerof 2", __func__); - return -EINVAL; - } - - if (queue_type == VTNET_RQ) { - snprintf(vq_name, sizeof(vq_name), "port%d_rvq%d", - dev->data->port_id, queue_idx); - vq = rte_zmalloc(vq_name, sizeof(struct virtqueue) + - vq_size * sizeof(struct vq_desc_extra), RTE_CACHE_LINE_SIZE); - vq->sw_ring = rte_zmalloc_socket("rxq->sw_ring", - (RTE_PMD_VIRTIO_RX_MAX_BURST + vq_size) * - sizeof(vq->sw_ring[0]), RTE_CACHE_LINE_SIZE, socket_id); - } else if (queue_type == VTNET_TQ) { - snprintf(vq_name, sizeof(vq_name), "port%d_tvq%d", - dev->data->port_id, queue_idx); - vq = rte_zmalloc(vq_name, sizeof(struct virtqueue) + - vq_size * sizeof(struct vq_desc_extra), RTE_CACHE_LINE_SIZE); - } else if (queue_type == VTNET_CQ) { - snprintf(vq_name, sizeof(vq_name), "port%d_cvq", - dev->data->port_id); - vq = rte_zmalloc(vq_name, sizeof(struct virtqueue) + - vq_size * sizeof(struct vq_desc_extra), - RTE_CACHE_LINE_SIZE); - } - if (vq == NULL) { - PMD_INIT_LOG(ERR, "%s: Can not allocate virtqueue", __func__); - return (-ENOMEM); - } - if (queue_type == VTNET_RQ && vq->sw_ring == NULL) { - PMD_INIT_LOG(ERR, "%s: Can not allocate RX soft ring", - __func__); - rte_free(vq); - return -ENOMEM; - } - - vq->hw = hw; - vq->port_id = dev->data->port_id; - vq->queue_id = queue_idx; - vq->vq_queue_index = vtpci_queue_idx; - vq->vq_nentries = vq_size; - - if (nb_desc == 0 || nb_desc > vq_size) - nb_desc = vq_size; - vq->vq_free_cnt = nb_desc; - - /* - * Reserve a memzone for vring elements - */ - size = vring_size(vq_size, VIRTIO_PCI_VRING_ALIGN); - vq->vq_ring_size = RTE_ALIGN_CEIL(size, VIRTIO_PCI_VRING_ALIGN); - PMD_INIT_LOG(DEBUG, "vring_size: %d, rounded_vring_size: %d", size, vq->vq_ring_size); - - mz = rte_memzone_reserve_aligned(vq_name, vq->vq_ring_size, - socket_id, 0, VIRTIO_PCI_VRING_ALIGN); - if (mz == NULL) { - if (rte_errno == EEXIST) - mz = rte_memzone_lookup(vq_name); - if (mz == NULL) { - rte_free(vq); - return -ENOMEM; - } - } - - /* - * Virtio PCI device VIRTIO_PCI_QUEUE_PF register is 32bit, - * and only accepts 32 bit page frame number. - * Check if the allocated physical memory exceeds 16TB. - */ - if ((mz->phys_addr + vq->vq_ring_size - 1) >> (VIRTIO_PCI_QUEUE_ADDR_SHIFT + 32)) { - PMD_INIT_LOG(ERR, "vring address shouldn't be above 16TB!"); - rte_free(vq); - return -ENOMEM; - } - - memset(mz->addr, 0, sizeof(mz->len)); - vq->mz = mz; - vq->vq_ring_mem = mz->phys_addr; - vq->vq_ring_virt_mem = mz->addr; - PMD_INIT_LOG(DEBUG, "vq->vq_ring_mem: 0x%"PRIx64, (uint64_t)mz->phys_addr); - PMD_INIT_LOG(DEBUG, "vq->vq_ring_virt_mem: 0x%"PRIx64, (uint64_t)(uintptr_t)mz->addr); - vq->virtio_net_hdr_mz = NULL; - vq->virtio_net_hdr_mem = 0; - - if (queue_type == VTNET_TQ) { - /* - * For each xmit packet, allocate a virtio_net_hdr - */ - snprintf(vq_name, sizeof(vq_name), "port%d_tvq%d_hdrzone", - dev->data->port_id, queue_idx); - vq->virtio_net_hdr_mz = rte_memzone_reserve_aligned(vq_name, - vq_size * hw->vtnet_hdr_size, - socket_id, 0, RTE_CACHE_LINE_SIZE); - if (vq->virtio_net_hdr_mz == NULL) { - if (rte_errno == EEXIST) - vq->virtio_net_hdr_mz = - rte_memzone_lookup(vq_name); - if (vq->virtio_net_hdr_mz == NULL) { - rte_free(vq); - return -ENOMEM; - } - } - vq->virtio_net_hdr_mem = - vq->virtio_net_hdr_mz->phys_addr; - memset(vq->virtio_net_hdr_mz->addr, 0, - vq_size * hw->vtnet_hdr_size); - } else if (queue_type == VTNET_CQ) { - /* Allocate a page for control vq command, data and status */ - snprintf(vq_name, sizeof(vq_name), "port%d_cvq_hdrzone", - dev->data->port_id); - vq->virtio_net_hdr_mz = rte_memzone_reserve_aligned(vq_name, - PAGE_SIZE, socket_id, 0, RTE_CACHE_LINE_SIZE); - if (vq->virtio_net_hdr_mz == NULL) { - if (rte_errno == EEXIST) - vq->virtio_net_hdr_mz = - rte_memzone_lookup(vq_name); - if (vq->virtio_net_hdr_mz == NULL) { - rte_free(vq); - return -ENOMEM; - } - } - vq->virtio_net_hdr_mem = - vq->virtio_net_hdr_mz->phys_addr; - memset(vq->virtio_net_hdr_mz->addr, 0, PAGE_SIZE); - } - - /* - * Set guest physical address of the virtqueue - * in VIRTIO_PCI_QUEUE_PFN config register of device - */ - VIRTIO_WRITE_REG_4(hw, VIRTIO_PCI_QUEUE_PFN, - mz->phys_addr >> VIRTIO_PCI_QUEUE_ADDR_SHIFT); - *pvq = vq; - return 0; -} - -static int -virtio_dev_cq_queue_setup(struct rte_eth_dev *dev, uint16_t vtpci_queue_idx, - uint32_t socket_id) -{ - struct virtqueue *vq; - int ret; - struct virtio_hw *hw = dev->data->dev_private; - - PMD_INIT_FUNC_TRACE(); - ret = virtio_dev_queue_setup(dev, VTNET_CQ, VTNET_SQ_CQ_QUEUE_IDX, - vtpci_queue_idx, 0, socket_id, &vq); - if (ret < 0) { - PMD_INIT_LOG(ERR, "control vq initialization failed"); - return ret; - } - - hw->cvq = vq; - return 0; -} - -static void -virtio_free_queues(struct rte_eth_dev *dev) -{ - unsigned int i; - - for (i = 0; i < dev->data->nb_rx_queues; i++) - virtio_dev_rx_queue_release(dev->data->rx_queues[i]); - - dev->data->nb_rx_queues = 0; - - for (i = 0; i < dev->data->nb_tx_queues; i++) - virtio_dev_tx_queue_release(dev->data->tx_queues[i]); - - dev->data->nb_tx_queues = 0; -} - -static void -virtio_dev_close(struct rte_eth_dev *dev) -{ - struct virtio_hw *hw = dev->data->dev_private; - struct rte_pci_device *pci_dev = dev->pci_dev; - - PMD_INIT_LOG(DEBUG, "virtio_dev_close"); - - /* reset the NIC */ - if (pci_dev->driver->drv_flags & RTE_PCI_DRV_INTR_LSC) - vtpci_irq_config(hw, VIRTIO_MSI_NO_VECTOR); - vtpci_reset(hw); - hw->started = 0; - virtio_dev_free_mbufs(dev); - virtio_free_queues(dev); -} - -static void -virtio_dev_promiscuous_enable(struct rte_eth_dev *dev) -{ - struct virtio_hw *hw = dev->data->dev_private; - struct virtio_pmd_ctrl ctrl; - int dlen[1]; - int ret; - - if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_RX)) { - PMD_INIT_LOG(INFO, "host does not support rx control\n"); - return; - } - - ctrl.hdr.class = VIRTIO_NET_CTRL_RX; - ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_PROMISC; - ctrl.data[0] = 1; - dlen[0] = 1; - - ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1); - if (ret) - PMD_INIT_LOG(ERR, "Failed to enable promisc"); -} - -static void -virtio_dev_promiscuous_disable(struct rte_eth_dev *dev) -{ - struct virtio_hw *hw = dev->data->dev_private; - struct virtio_pmd_ctrl ctrl; - int dlen[1]; - int ret; - - if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_RX)) { - PMD_INIT_LOG(INFO, "host does not support rx control\n"); - return; - } - - ctrl.hdr.class = VIRTIO_NET_CTRL_RX; - ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_PROMISC; - ctrl.data[0] = 0; - dlen[0] = 1; - - ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1); - if (ret) - PMD_INIT_LOG(ERR, "Failed to disable promisc"); -} - -static void -virtio_dev_allmulticast_enable(struct rte_eth_dev *dev) -{ - struct virtio_hw *hw = dev->data->dev_private; - struct virtio_pmd_ctrl ctrl; - int dlen[1]; - int ret; - - if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_RX)) { - PMD_INIT_LOG(INFO, "host does not support rx control\n"); - return; - } - - ctrl.hdr.class = VIRTIO_NET_CTRL_RX; - ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_ALLMULTI; - ctrl.data[0] = 1; - dlen[0] = 1; - - ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1); - if (ret) - PMD_INIT_LOG(ERR, "Failed to enable allmulticast"); -} - -static void -virtio_dev_allmulticast_disable(struct rte_eth_dev *dev) -{ - struct virtio_hw *hw = dev->data->dev_private; - struct virtio_pmd_ctrl ctrl; - int dlen[1]; - int ret; - - if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_RX)) { - PMD_INIT_LOG(INFO, "host does not support rx control\n"); - return; - } - - ctrl.hdr.class = VIRTIO_NET_CTRL_RX; - ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_ALLMULTI; - ctrl.data[0] = 0; - dlen[0] = 1; - - ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1); - if (ret) - PMD_INIT_LOG(ERR, "Failed to disable allmulticast"); -} - -/* - * dev_ops for virtio, bare necessities for basic operation - */ -static const struct eth_dev_ops virtio_eth_dev_ops = { - .dev_configure = virtio_dev_configure, - .dev_start = virtio_dev_start, - .dev_stop = virtio_dev_stop, - .dev_close = virtio_dev_close, - .promiscuous_enable = virtio_dev_promiscuous_enable, - .promiscuous_disable = virtio_dev_promiscuous_disable, - .allmulticast_enable = virtio_dev_allmulticast_enable, - .allmulticast_disable = virtio_dev_allmulticast_disable, - - .dev_infos_get = virtio_dev_info_get, - .stats_get = virtio_dev_stats_get, - .xstats_get = virtio_dev_xstats_get, - .stats_reset = virtio_dev_stats_reset, - .xstats_reset = virtio_dev_stats_reset, - .link_update = virtio_dev_link_update, - .rx_queue_setup = virtio_dev_rx_queue_setup, - .rx_queue_release = virtio_dev_rx_queue_release, - .tx_queue_setup = virtio_dev_tx_queue_setup, - .tx_queue_release = virtio_dev_tx_queue_release, - /* collect stats per queue */ - .queue_stats_mapping_set = virtio_dev_queue_stats_mapping_set, - .vlan_filter_set = virtio_vlan_filter_set, - .mac_addr_add = virtio_mac_addr_add, - .mac_addr_remove = virtio_mac_addr_remove, - .mac_addr_set = virtio_mac_addr_set, -}; - -static inline int -virtio_dev_atomic_read_link_status(struct rte_eth_dev *dev, - struct rte_eth_link *link) -{ - struct rte_eth_link *dst = link; - struct rte_eth_link *src = &(dev->data->dev_link); - - if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst, - *(uint64_t *)src) == 0) - return -1; - - return 0; -} - -/** - * Atomically writes the link status information into global - * structure rte_eth_dev. - * - * @param dev - * - Pointer to the structure rte_eth_dev to read from. - * - Pointer to the buffer to be saved with the link status. - * - * @return - * - On success, zero. - * - On failure, negative value. - */ -static inline int -virtio_dev_atomic_write_link_status(struct rte_eth_dev *dev, - struct rte_eth_link *link) -{ - struct rte_eth_link *dst = &(dev->data->dev_link); - struct rte_eth_link *src = link; - - if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst, - *(uint64_t *)src) == 0) - return -1; - - return 0; -} - -static void -virtio_update_stats(struct rte_eth_dev *dev, struct rte_eth_stats *stats) -{ - unsigned i; - - for (i = 0; i < dev->data->nb_tx_queues; i++) { - const struct virtqueue *txvq = dev->data->tx_queues[i]; - if (txvq == NULL) - continue; - - stats->opackets += txvq->packets; - stats->obytes += txvq->bytes; - stats->oerrors += txvq->errors; - - if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) { - stats->q_opackets[i] = txvq->packets; - stats->q_obytes[i] = txvq->bytes; - } - } - - for (i = 0; i < dev->data->nb_rx_queues; i++) { - const struct virtqueue *rxvq = dev->data->rx_queues[i]; - if (rxvq == NULL) - continue; - - stats->ipackets += rxvq->packets; - stats->ibytes += rxvq->bytes; - stats->ierrors += rxvq->errors; - - if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) { - stats->q_ipackets[i] = rxvq->packets; - stats->q_ibytes[i] = rxvq->bytes; - } - } - - stats->rx_nombuf = dev->data->rx_mbuf_alloc_failed; -} - -static int -virtio_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstats *xstats, - unsigned n) -{ - unsigned i; - unsigned count = 0; - - unsigned nstats = dev->data->nb_tx_queues * VIRTIO_NB_Q_XSTATS + - dev->data->nb_rx_queues * VIRTIO_NB_Q_XSTATS; - - if (n < nstats) - return nstats; - - for (i = 0; i < dev->data->nb_rx_queues; i++) { - struct virtqueue *rxvq = dev->data->rx_queues[i]; - - if (rxvq == NULL) - continue; - - unsigned t; - - for (t = 0; t < VIRTIO_NB_Q_XSTATS; t++) { - snprintf(xstats[count].name, sizeof(xstats[count].name), - "rx_q%u_%s", i, - rte_virtio_q_stat_strings[t].name); - xstats[count].value = *(uint64_t *)(((char *)rxvq) + - rte_virtio_q_stat_strings[t].offset); - count++; - } - } - - for (i = 0; i < dev->data->nb_tx_queues; i++) { - struct virtqueue *txvq = dev->data->tx_queues[i]; - - if (txvq == NULL) - continue; - - unsigned t; - - for (t = 0; t < VIRTIO_NB_Q_XSTATS; t++) { - snprintf(xstats[count].name, sizeof(xstats[count].name), - "tx_q%u_%s", i, - rte_virtio_q_stat_strings[t].name); - xstats[count].value = *(uint64_t *)(((char *)txvq) + - rte_virtio_q_stat_strings[t].offset); - count++; - } - } - - return count; -} - -static void -virtio_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats) -{ - virtio_update_stats(dev, stats); -} - -static void -virtio_dev_stats_reset(struct rte_eth_dev *dev) -{ - unsigned int i; - - for (i = 0; i < dev->data->nb_tx_queues; i++) { - struct virtqueue *txvq = dev->data->tx_queues[i]; - if (txvq == NULL) - continue; - - txvq->packets = 0; - txvq->bytes = 0; - txvq->errors = 0; - txvq->multicast = 0; - txvq->broadcast = 0; - memset(txvq->size_bins, 0, sizeof(txvq->size_bins[0]) * 8); - } - - for (i = 0; i < dev->data->nb_rx_queues; i++) { - struct virtqueue *rxvq = dev->data->rx_queues[i]; - if (rxvq == NULL) - continue; - - rxvq->packets = 0; - rxvq->bytes = 0; - rxvq->errors = 0; - rxvq->multicast = 0; - rxvq->broadcast = 0; - memset(rxvq->size_bins, 0, sizeof(rxvq->size_bins[0]) * 8); - } -} - -static void -virtio_set_hwaddr(struct virtio_hw *hw) -{ - vtpci_write_dev_config(hw, - offsetof(struct virtio_net_config, mac), - &hw->mac_addr, ETHER_ADDR_LEN); -} - -static void -virtio_get_hwaddr(struct virtio_hw *hw) -{ - if (vtpci_with_feature(hw, VIRTIO_NET_F_MAC)) { - vtpci_read_dev_config(hw, - offsetof(struct virtio_net_config, mac), - &hw->mac_addr, ETHER_ADDR_LEN); - } else { - eth_random_addr(&hw->mac_addr[0]); - virtio_set_hwaddr(hw); - } -} - -static void -virtio_mac_table_set(struct virtio_hw *hw, - const struct virtio_net_ctrl_mac *uc, - const struct virtio_net_ctrl_mac *mc) -{ - struct virtio_pmd_ctrl ctrl; - int err, len[2]; - - if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_MAC_ADDR)) { - PMD_DRV_LOG(INFO, "host does not support mac table\n"); - return; - } - - ctrl.hdr.class = VIRTIO_NET_CTRL_MAC; - ctrl.hdr.cmd = VIRTIO_NET_CTRL_MAC_TABLE_SET; - - len[0] = uc->entries * ETHER_ADDR_LEN + sizeof(uc->entries); - memcpy(ctrl.data, uc, len[0]); - - len[1] = mc->entries * ETHER_ADDR_LEN + sizeof(mc->entries); - memcpy(ctrl.data + len[0], mc, len[1]); - - err = virtio_send_command(hw->cvq, &ctrl, len, 2); - if (err != 0) - PMD_DRV_LOG(NOTICE, "mac table set failed: %d", err); -} - -static void -virtio_mac_addr_add(struct rte_eth_dev *dev, struct ether_addr *mac_addr, - uint32_t index, uint32_t vmdq __rte_unused) -{ - struct virtio_hw *hw = dev->data->dev_private; - const struct ether_addr *addrs = dev->data->mac_addrs; - unsigned int i; - struct virtio_net_ctrl_mac *uc, *mc; - - if (index >= VIRTIO_MAX_MAC_ADDRS) { - PMD_DRV_LOG(ERR, "mac address index %u out of range", index); - return; - } - - uc = alloca(VIRTIO_MAX_MAC_ADDRS * ETHER_ADDR_LEN + sizeof(uc->entries)); - uc->entries = 0; - mc = alloca(VIRTIO_MAX_MAC_ADDRS * ETHER_ADDR_LEN + sizeof(mc->entries)); - mc->entries = 0; - - for (i = 0; i < VIRTIO_MAX_MAC_ADDRS; i++) { - const struct ether_addr *addr - = (i == index) ? mac_addr : addrs + i; - struct virtio_net_ctrl_mac *tbl - = is_multicast_ether_addr(addr) ? mc : uc; - - memcpy(&tbl->macs[tbl->entries++], addr, ETHER_ADDR_LEN); - } - - virtio_mac_table_set(hw, uc, mc); -} - -static void -virtio_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index) -{ - struct virtio_hw *hw = dev->data->dev_private; - struct ether_addr *addrs = dev->data->mac_addrs; - struct virtio_net_ctrl_mac *uc, *mc; - unsigned int i; - - if (index >= VIRTIO_MAX_MAC_ADDRS) { - PMD_DRV_LOG(ERR, "mac address index %u out of range", index); - return; - } - - uc = alloca(VIRTIO_MAX_MAC_ADDRS * ETHER_ADDR_LEN + sizeof(uc->entries)); - uc->entries = 0; - mc = alloca(VIRTIO_MAX_MAC_ADDRS * ETHER_ADDR_LEN + sizeof(mc->entries)); - mc->entries = 0; - - for (i = 0; i < VIRTIO_MAX_MAC_ADDRS; i++) { - struct virtio_net_ctrl_mac *tbl; - - if (i == index || is_zero_ether_addr(addrs + i)) - continue; - - tbl = is_multicast_ether_addr(addrs + i) ? mc : uc; - memcpy(&tbl->macs[tbl->entries++], addrs + i, ETHER_ADDR_LEN); - } - - virtio_mac_table_set(hw, uc, mc); -} - -static void -virtio_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr) -{ - struct virtio_hw *hw = dev->data->dev_private; - - memcpy(hw->mac_addr, mac_addr, ETHER_ADDR_LEN); - - /* Use atomic update if available */ - if (vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_MAC_ADDR)) { - struct virtio_pmd_ctrl ctrl; - int len = ETHER_ADDR_LEN; - - ctrl.hdr.class = VIRTIO_NET_CTRL_MAC; - ctrl.hdr.cmd = VIRTIO_NET_CTRL_MAC_ADDR_SET; - - memcpy(ctrl.data, mac_addr, ETHER_ADDR_LEN); - virtio_send_command(hw->cvq, &ctrl, &len, 1); - } else if (vtpci_with_feature(hw, VIRTIO_NET_F_MAC)) - virtio_set_hwaddr(hw); -} - -static int -virtio_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on) -{ - struct virtio_hw *hw = dev->data->dev_private; - struct virtio_pmd_ctrl ctrl; - int len; - - if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_VLAN)) - return -ENOTSUP; - - ctrl.hdr.class = VIRTIO_NET_CTRL_VLAN; - ctrl.hdr.cmd = on ? VIRTIO_NET_CTRL_VLAN_ADD : VIRTIO_NET_CTRL_VLAN_DEL; - memcpy(ctrl.data, &vlan_id, sizeof(vlan_id)); - len = sizeof(vlan_id); - - return virtio_send_command(hw->cvq, &ctrl, &len, 1); -} - -static void -virtio_negotiate_features(struct virtio_hw *hw) -{ - uint32_t host_features; - - /* Prepare guest_features: feature that driver wants to support */ - hw->guest_features = VIRTIO_PMD_GUEST_FEATURES; - PMD_INIT_LOG(DEBUG, "guest_features before negotiate = %x", - hw->guest_features); - - /* Read device(host) feature bits */ - host_features = VIRTIO_READ_REG_4(hw, VIRTIO_PCI_HOST_FEATURES); - PMD_INIT_LOG(DEBUG, "host_features before negotiate = %x", - host_features); - - /* - * Negotiate features: Subset of device feature bits are written back - * guest feature bits. - */ - hw->guest_features = vtpci_negotiate_features(hw, host_features); - PMD_INIT_LOG(DEBUG, "features after negotiate = %x", - hw->guest_features); -} - -#ifdef RTE_EXEC_ENV_LINUXAPP -static int -parse_sysfs_value(const char *filename, unsigned long *val) -{ - FILE *f; - char buf[BUFSIZ]; - char *end = NULL; - - f = fopen(filename, "r"); - if (f == NULL) { - PMD_INIT_LOG(ERR, "%s(): cannot open sysfs value %s", - __func__, filename); - return -1; - } - - if (fgets(buf, sizeof(buf), f) == NULL) { - PMD_INIT_LOG(ERR, "%s(): cannot read sysfs value %s", - __func__, filename); - fclose(f); - return -1; - } - *val = strtoul(buf, &end, 0); - if ((buf[0] == '\0') || (end == NULL) || (*end != '\n')) { - PMD_INIT_LOG(ERR, "%s(): cannot parse sysfs value %s", - __func__, filename); - fclose(f); - return -1; - } - fclose(f); - return 0; -} - -static int get_uio_dev(struct rte_pci_addr *loc, char *buf, unsigned int buflen, - unsigned int *uio_num) -{ - struct dirent *e; - DIR *dir; - char dirname[PATH_MAX]; - - /* depending on kernel version, uio can be located in uio/uioX - * or uio:uioX */ - snprintf(dirname, sizeof(dirname), - SYSFS_PCI_DEVICES "/" PCI_PRI_FMT "/uio", - loc->domain, loc->bus, loc->devid, loc->function); - dir = opendir(dirname); - if (dir == NULL) { - /* retry with the parent directory */ - snprintf(dirname, sizeof(dirname), - SYSFS_PCI_DEVICES "/" PCI_PRI_FMT, - loc->domain, loc->bus, loc->devid, loc->function); - dir = opendir(dirname); - - if (dir == NULL) { - PMD_INIT_LOG(ERR, "Cannot opendir %s", dirname); - return -1; - } - } - - /* take the first file starting with "uio" */ - while ((e = readdir(dir)) != NULL) { - /* format could be uio%d ...*/ - int shortprefix_len = sizeof("uio") - 1; - /* ... or uio:uio%d */ - int longprefix_len = sizeof("uio:uio") - 1; - char *endptr; - - if (strncmp(e->d_name, "uio", 3) != 0) - continue; - - /* first try uio%d */ - errno = 0; - *uio_num = strtoull(e->d_name + shortprefix_len, &endptr, 10); - if (errno == 0 && endptr != (e->d_name + shortprefix_len)) { - snprintf(buf, buflen, "%s/uio%u", dirname, *uio_num); - break; - } - - /* then try uio:uio%d */ - errno = 0; - *uio_num = strtoull(e->d_name + longprefix_len, &endptr, 10); - if (errno == 0 && endptr != (e->d_name + longprefix_len)) { - snprintf(buf, buflen, "%s/uio:uio%u", dirname, - *uio_num); - break; - } - } - closedir(dir); - - /* No uio resource found */ - if (e == NULL) { - PMD_INIT_LOG(ERR, "Could not find uio resource"); - return -1; - } - - return 0; -} - -static int -virtio_has_msix(const struct rte_pci_addr *loc) -{ - DIR *d; - char dirname[PATH_MAX]; - - snprintf(dirname, sizeof(dirname), - SYSFS_PCI_DEVICES "/" PCI_PRI_FMT "/msi_irqs", - loc->domain, loc->bus, loc->devid, loc->function); - - d = opendir(dirname); - if (d) - closedir(d); - - return (d != NULL); -} - -/* Extract I/O port numbers from sysfs */ -static int virtio_resource_init_by_uio(struct rte_pci_device *pci_dev) -{ - char dirname[PATH_MAX]; - char filename[PATH_MAX]; - unsigned long start, size; - unsigned int uio_num; - - if (get_uio_dev(&pci_dev->addr, dirname, sizeof(dirname), &uio_num) < 0) - return -1; - - /* get portio size */ - snprintf(filename, sizeof(filename), - "%s/portio/port0/size", dirname); - if (parse_sysfs_value(filename, &size) < 0) { - PMD_INIT_LOG(ERR, "%s(): cannot parse size", - __func__); - return -1; - } - - /* get portio start */ - snprintf(filename, sizeof(filename), - "%s/portio/port0/start", dirname); - if (parse_sysfs_value(filename, &start) < 0) { - PMD_INIT_LOG(ERR, "%s(): cannot parse portio start", - __func__); - return -1; - } - pci_dev->mem_resource[0].addr = (void *)(uintptr_t)start; - pci_dev->mem_resource[0].len = (uint64_t)size; - PMD_INIT_LOG(DEBUG, - "PCI Port IO found start=0x%lx with size=0x%lx", - start, size); - - /* save fd */ - memset(dirname, 0, sizeof(dirname)); - snprintf(dirname, sizeof(dirname), "/dev/uio%u", uio_num); - pci_dev->intr_handle.fd = open(dirname, O_RDWR); - if (pci_dev->intr_handle.fd < 0) { - PMD_INIT_LOG(ERR, "Cannot open %s: %s\n", - dirname, strerror(errno)); - return -1; - } - - pci_dev->intr_handle.type = RTE_INTR_HANDLE_UIO; - pci_dev->driver->drv_flags |= RTE_PCI_DRV_INTR_LSC; - - return 0; -} - -/* Extract port I/O numbers from proc/ioports */ -static int virtio_resource_init_by_ioports(struct rte_pci_device *pci_dev) -{ - uint16_t start, end; - int size; - FILE *fp; - char *line = NULL; - char pci_id[16]; - int found = 0; - size_t linesz; - - snprintf(pci_id, sizeof(pci_id), PCI_PRI_FMT, - pci_dev->addr.domain, - pci_dev->addr.bus, - pci_dev->addr.devid, - pci_dev->addr.function); - - fp = fopen("/proc/ioports", "r"); - if (fp == NULL) { - PMD_INIT_LOG(ERR, "%s(): can't open ioports", __func__); - return -1; - } - - while (getdelim(&line, &linesz, '\n', fp) > 0) { - char *ptr = line; - char *left; - int n; - - n = strcspn(ptr, ":"); - ptr[n] = 0; - left = &ptr[n+1]; - - while (*left && isspace(*left)) - left++; - - if (!strncmp(left, pci_id, strlen(pci_id))) { - found = 1; - - while (*ptr && isspace(*ptr)) - ptr++; - - sscanf(ptr, "%04hx-%04hx", &start, &end); - size = end - start + 1; - - break; - } - } - - free(line); - fclose(fp); - - if (!found) - return -1; - - pci_dev->mem_resource[0].addr = (void *)(uintptr_t)(uint32_t)start; - pci_dev->mem_resource[0].len = (uint64_t)size; - PMD_INIT_LOG(DEBUG, - "PCI Port IO found start=0x%x with size=0x%x", - start, size); - - /* can't support lsc interrupt without uio */ - pci_dev->driver->drv_flags &= ~RTE_PCI_DRV_INTR_LSC; - - return 0; -} - -/* Extract I/O port numbers from sysfs */ -static int virtio_resource_init(struct rte_pci_device *pci_dev) -{ - if (virtio_resource_init_by_uio(pci_dev) == 0) - return 0; - else - return virtio_resource_init_by_ioports(pci_dev); -} - -#else -static int -virtio_has_msix(const struct rte_pci_addr *loc __rte_unused) -{ - /* nic_uio does not enable interrupts, return 0 (false). */ - return 0; -} - -static int virtio_resource_init(struct rte_pci_device *pci_dev __rte_unused) -{ - /* no setup required */ - return 0; -} -#endif - -/* - * Process Virtio Config changed interrupt and call the callback - * if link state changed. - */ -static void -virtio_interrupt_handler(__rte_unused struct rte_intr_handle *handle, - void *param) -{ - struct rte_eth_dev *dev = param; - struct virtio_hw *hw = dev->data->dev_private; - uint8_t isr; - - /* Read interrupt status which clears interrupt */ - isr = vtpci_isr(hw); - PMD_DRV_LOG(INFO, "interrupt status = %#x", isr); - - if (rte_intr_enable(&dev->pci_dev->intr_handle) < 0) - PMD_DRV_LOG(ERR, "interrupt enable failed"); - - if (isr & VIRTIO_PCI_ISR_CONFIG) { - if (virtio_dev_link_update(dev, 0) == 0) - _rte_eth_dev_callback_process(dev, - RTE_ETH_EVENT_INTR_LSC); - } - -} - -static void -rx_func_get(struct rte_eth_dev *eth_dev) -{ - struct virtio_hw *hw = eth_dev->data->dev_private; - if (vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF)) - eth_dev->rx_pkt_burst = &virtio_recv_mergeable_pkts; - else - eth_dev->rx_pkt_burst = &virtio_recv_pkts; -} - -/* - * This function is based on probe() function in virtio_pci.c - * It returns 0 on success. - */ -static int -eth_virtio_dev_init(struct rte_eth_dev *eth_dev) -{ - struct virtio_hw *hw = eth_dev->data->dev_private; - struct virtio_net_config *config; - struct virtio_net_config local_config; - struct rte_pci_device *pci_dev; - - RTE_BUILD_BUG_ON(RTE_PKTMBUF_HEADROOM < sizeof(struct virtio_net_hdr)); - - eth_dev->dev_ops = &virtio_eth_dev_ops; - eth_dev->tx_pkt_burst = &virtio_xmit_pkts; - - if (rte_eal_process_type() == RTE_PROC_SECONDARY) { - rx_func_get(eth_dev); - return 0; - } - - /* Allocate memory for storing MAC addresses */ - eth_dev->data->mac_addrs = rte_zmalloc("virtio", VIRTIO_MAX_MAC_ADDRS * ETHER_ADDR_LEN, 0); - if (eth_dev->data->mac_addrs == NULL) { - PMD_INIT_LOG(ERR, - "Failed to allocate %d bytes needed to store MAC addresses", - VIRTIO_MAX_MAC_ADDRS * ETHER_ADDR_LEN); - return -ENOMEM; - } - - pci_dev = eth_dev->pci_dev; - - if (virtio_resource_init(pci_dev) < 0) - return -1; - - hw->use_msix = virtio_has_msix(&pci_dev->addr); - hw->io_base = (uint32_t)(uintptr_t)pci_dev->mem_resource[0].addr; - - /* Reset the device although not necessary at startup */ - vtpci_reset(hw); - - /* Tell the host we've noticed this device. */ - vtpci_set_status(hw, VIRTIO_CONFIG_STATUS_ACK); - - /* Tell the host we've known how to drive the device. */ - vtpci_set_status(hw, VIRTIO_CONFIG_STATUS_DRIVER); - virtio_negotiate_features(hw); - - /* If host does not support status then disable LSC */ - if (!vtpci_with_feature(hw, VIRTIO_NET_F_STATUS)) - pci_dev->driver->drv_flags &= ~RTE_PCI_DRV_INTR_LSC; - - rte_eth_copy_pci_info(eth_dev, pci_dev); - - rx_func_get(eth_dev); - - /* Setting up rx_header size for the device */ - if (vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF)) - hw->vtnet_hdr_size = sizeof(struct virtio_net_hdr_mrg_rxbuf); - else - hw->vtnet_hdr_size = sizeof(struct virtio_net_hdr); - - /* Copy the permanent MAC address to: virtio_hw */ - virtio_get_hwaddr(hw); - ether_addr_copy((struct ether_addr *) hw->mac_addr, - ð_dev->data->mac_addrs[0]); - PMD_INIT_LOG(DEBUG, - "PORT MAC: %02X:%02X:%02X:%02X:%02X:%02X", - hw->mac_addr[0], hw->mac_addr[1], hw->mac_addr[2], - hw->mac_addr[3], hw->mac_addr[4], hw->mac_addr[5]); - - if (vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_VQ)) { - config = &local_config; - - vtpci_read_dev_config(hw, - offsetof(struct virtio_net_config, mac), - &config->mac, sizeof(config->mac)); - - if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS)) { - vtpci_read_dev_config(hw, - offsetof(struct virtio_net_config, status), - &config->status, sizeof(config->status)); - } else { - PMD_INIT_LOG(DEBUG, - "VIRTIO_NET_F_STATUS is not supported"); - config->status = 0; - } - - if (vtpci_with_feature(hw, VIRTIO_NET_F_MQ)) { - vtpci_read_dev_config(hw, - offsetof(struct virtio_net_config, max_virtqueue_pairs), - &config->max_virtqueue_pairs, - sizeof(config->max_virtqueue_pairs)); - } else { - PMD_INIT_LOG(DEBUG, - "VIRTIO_NET_F_MQ is not supported"); - config->max_virtqueue_pairs = 1; - } - - hw->max_rx_queues = - (VIRTIO_MAX_RX_QUEUES < config->max_virtqueue_pairs) ? - VIRTIO_MAX_RX_QUEUES : config->max_virtqueue_pairs; - hw->max_tx_queues = - (VIRTIO_MAX_TX_QUEUES < config->max_virtqueue_pairs) ? - VIRTIO_MAX_TX_QUEUES : config->max_virtqueue_pairs; - - virtio_dev_cq_queue_setup(eth_dev, - config->max_virtqueue_pairs * 2, - SOCKET_ID_ANY); - - PMD_INIT_LOG(DEBUG, "config->max_virtqueue_pairs=%d", - config->max_virtqueue_pairs); - PMD_INIT_LOG(DEBUG, "config->status=%d", config->status); - PMD_INIT_LOG(DEBUG, - "PORT MAC: %02X:%02X:%02X:%02X:%02X:%02X", - config->mac[0], config->mac[1], - config->mac[2], config->mac[3], - config->mac[4], config->mac[5]); - } else { - hw->max_rx_queues = 1; - hw->max_tx_queues = 1; - } - - eth_dev->data->nb_rx_queues = hw->max_rx_queues; - eth_dev->data->nb_tx_queues = hw->max_tx_queues; - - PMD_INIT_LOG(DEBUG, "hw->max_rx_queues=%d hw->max_tx_queues=%d", - hw->max_rx_queues, hw->max_tx_queues); - PMD_INIT_LOG(DEBUG, "port %d vendorID=0x%x deviceID=0x%x", - eth_dev->data->port_id, pci_dev->id.vendor_id, - pci_dev->id.device_id); - - /* Setup interrupt callback */ - if (pci_dev->driver->drv_flags & RTE_PCI_DRV_INTR_LSC) - rte_intr_callback_register(&pci_dev->intr_handle, - virtio_interrupt_handler, eth_dev); - - virtio_dev_cq_start(eth_dev); - - return 0; -} - -static int -eth_virtio_dev_uninit(struct rte_eth_dev *eth_dev) -{ - struct rte_pci_device *pci_dev; - struct virtio_hw *hw = eth_dev->data->dev_private; - - PMD_INIT_FUNC_TRACE(); - - if (rte_eal_process_type() == RTE_PROC_SECONDARY) - return -EPERM; - - if (hw->started == 1) { - virtio_dev_stop(eth_dev); - virtio_dev_close(eth_dev); - } - pci_dev = eth_dev->pci_dev; - - eth_dev->dev_ops = NULL; - eth_dev->tx_pkt_burst = NULL; - eth_dev->rx_pkt_burst = NULL; - - virtio_dev_queue_release(hw->cvq); - - rte_free(eth_dev->data->mac_addrs); - eth_dev->data->mac_addrs = NULL; - - /* reset interrupt callback */ - if (pci_dev->driver->drv_flags & RTE_PCI_DRV_INTR_LSC) - rte_intr_callback_unregister(&pci_dev->intr_handle, - virtio_interrupt_handler, - eth_dev); - - PMD_INIT_LOG(DEBUG, "dev_uninit completed"); - - return 0; -} - -static struct eth_driver rte_virtio_pmd = { - .pci_drv = { - .name = "rte_virtio_pmd", - .id_table = pci_id_virtio_map, - .drv_flags = RTE_PCI_DRV_DETACHABLE, - }, - .eth_dev_init = eth_virtio_dev_init, - .eth_dev_uninit = eth_virtio_dev_uninit, - .dev_private_size = sizeof(struct virtio_hw), -}; - -/* - * Driver initialization routine. - * Invoked once at EAL init time. - * Register itself as the [Poll Mode] Driver of PCI virtio devices. - * Returns 0 on success. - */ -static int -rte_virtio_pmd_init(const char *name __rte_unused, - const char *param __rte_unused) -{ - if (rte_eal_iopl_init() != 0) { - PMD_INIT_LOG(ERR, "IOPL call failed - cannot use virtio PMD"); - return -1; - } - - rte_eth_driver_register(&rte_virtio_pmd); - return 0; -} - -/* - * Configure virtio device - * It returns 0 on success. - */ -static int -virtio_dev_configure(struct rte_eth_dev *dev) -{ - const struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode; - struct virtio_hw *hw = dev->data->dev_private; - struct rte_pci_device *pci_dev = dev->pci_dev; - - PMD_INIT_LOG(DEBUG, "configure"); - - if (rxmode->hw_ip_checksum) { - PMD_DRV_LOG(ERR, "HW IP checksum not supported"); - return (-EINVAL); - } - - hw->vlan_strip = rxmode->hw_vlan_strip; - - if (rxmode->hw_vlan_filter - && !vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_VLAN)) { - PMD_DRV_LOG(NOTICE, - "vlan filtering not available on this host"); - return -ENOTSUP; - } - - if (pci_dev->driver->drv_flags & RTE_PCI_DRV_INTR_LSC) - if (vtpci_irq_config(hw, 0) == VIRTIO_MSI_NO_VECTOR) { - PMD_DRV_LOG(ERR, "failed to set config vector"); - return -EBUSY; - } - - return 0; -} - - -static int -virtio_dev_start(struct rte_eth_dev *dev) -{ - uint16_t nb_queues, i; - struct virtio_hw *hw = dev->data->dev_private; - struct rte_pci_device *pci_dev = dev->pci_dev; - - /* check if lsc interrupt feature is enabled */ - if (dev->data->dev_conf.intr_conf.lsc) { - if (!(pci_dev->driver->drv_flags & RTE_PCI_DRV_INTR_LSC)) { - PMD_DRV_LOG(ERR, "link status not supported by host"); - return -ENOTSUP; - } - - if (rte_intr_enable(&dev->pci_dev->intr_handle) < 0) { - PMD_DRV_LOG(ERR, "interrupt enable failed"); - return -EIO; - } - } - - /* Initialize Link state */ - virtio_dev_link_update(dev, 0); - - /* On restart after stop do not touch queues */ - if (hw->started) - return 0; - - /* Do final configuration before rx/tx engine starts */ - virtio_dev_rxtx_start(dev); - vtpci_reinit_complete(hw); - - hw->started = 1; - - /*Notify the backend - *Otherwise the tap backend might already stop its queue due to fullness. - *vhost backend will have no chance to be waked up - */ - nb_queues = dev->data->nb_rx_queues; - if (nb_queues > 1) { - if (virtio_set_multiple_queues(dev, nb_queues) != 0) - return -EINVAL; - } - - PMD_INIT_LOG(DEBUG, "nb_queues=%d", nb_queues); - - for (i = 0; i < nb_queues; i++) - virtqueue_notify(dev->data->rx_queues[i]); - - PMD_INIT_LOG(DEBUG, "Notified backend at initialization"); - - for (i = 0; i < dev->data->nb_rx_queues; i++) - VIRTQUEUE_DUMP((struct virtqueue *)dev->data->rx_queues[i]); - - for (i = 0; i < dev->data->nb_tx_queues; i++) - VIRTQUEUE_DUMP((struct virtqueue *)dev->data->tx_queues[i]); - - return 0; -} - -static void virtio_dev_free_mbufs(struct rte_eth_dev *dev) -{ - struct rte_mbuf *buf; - int i, mbuf_num = 0; - - for (i = 0; i < dev->data->nb_rx_queues; i++) { - PMD_INIT_LOG(DEBUG, - "Before freeing rxq[%d] used and unused buf", i); - VIRTQUEUE_DUMP((struct virtqueue *)dev->data->rx_queues[i]); - - PMD_INIT_LOG(DEBUG, "rx_queues[%d]=%p", - i, dev->data->rx_queues[i]); - while ((buf = (struct rte_mbuf *)virtqueue_detatch_unused( - dev->data->rx_queues[i])) != NULL) { - rte_pktmbuf_free(buf); - mbuf_num++; - } - - PMD_INIT_LOG(DEBUG, "free %d mbufs", mbuf_num); - PMD_INIT_LOG(DEBUG, - "After freeing rxq[%d] used and unused buf", i); - VIRTQUEUE_DUMP((struct virtqueue *)dev->data->rx_queues[i]); - } - - for (i = 0; i < dev->data->nb_tx_queues; i++) { - PMD_INIT_LOG(DEBUG, - "Before freeing txq[%d] used and unused bufs", - i); - VIRTQUEUE_DUMP((struct virtqueue *)dev->data->tx_queues[i]); - - mbuf_num = 0; - while ((buf = (struct rte_mbuf *)virtqueue_detatch_unused( - dev->data->tx_queues[i])) != NULL) { - rte_pktmbuf_free(buf); - - mbuf_num++; - } - - PMD_INIT_LOG(DEBUG, "free %d mbufs", mbuf_num); - PMD_INIT_LOG(DEBUG, - "After freeing txq[%d] used and unused buf", i); - VIRTQUEUE_DUMP((struct virtqueue *)dev->data->tx_queues[i]); - } -} - -/* - * Stop device: disable interrupt and mark link down - */ -static void -virtio_dev_stop(struct rte_eth_dev *dev) -{ - struct rte_eth_link link; - - PMD_INIT_LOG(DEBUG, "stop"); - - if (dev->data->dev_conf.intr_conf.lsc) - rte_intr_disable(&dev->pci_dev->intr_handle); - - memset(&link, 0, sizeof(link)); - virtio_dev_atomic_write_link_status(dev, &link); -} - -static int -virtio_dev_link_update(struct rte_eth_dev *dev, __rte_unused int wait_to_complete) -{ - struct rte_eth_link link, old; - uint16_t status; - struct virtio_hw *hw = dev->data->dev_private; - memset(&link, 0, sizeof(link)); - virtio_dev_atomic_read_link_status(dev, &link); - old = link; - link.link_duplex = FULL_DUPLEX; - link.link_speed = SPEED_10G; - - if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS)) { - PMD_INIT_LOG(DEBUG, "Get link status from hw"); - vtpci_read_dev_config(hw, - offsetof(struct virtio_net_config, status), - &status, sizeof(status)); - if ((status & VIRTIO_NET_S_LINK_UP) == 0) { - link.link_status = 0; - PMD_INIT_LOG(DEBUG, "Port %d is down", - dev->data->port_id); - } else { - link.link_status = 1; - PMD_INIT_LOG(DEBUG, "Port %d is up", - dev->data->port_id); - } - } else { - link.link_status = 1; /* Link up */ - } - virtio_dev_atomic_write_link_status(dev, &link); - - return (old.link_status == link.link_status) ? -1 : 0; -} - -static void -virtio_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info) -{ - struct virtio_hw *hw = dev->data->dev_private; - - dev_info->driver_name = dev->driver->pci_drv.name; - dev_info->max_rx_queues = (uint16_t)hw->max_rx_queues; - dev_info->max_tx_queues = (uint16_t)hw->max_tx_queues; - dev_info->min_rx_bufsize = VIRTIO_MIN_RX_BUFSIZE; - dev_info->max_rx_pktlen = VIRTIO_MAX_RX_PKTLEN; - dev_info->max_mac_addrs = VIRTIO_MAX_MAC_ADDRS; - dev_info->default_txconf = (struct rte_eth_txconf) { - .txq_flags = ETH_TXQ_FLAGS_NOOFFLOADS - }; -} - -/* - * It enables testpmd to collect per queue stats. - */ -static int -virtio_dev_queue_stats_mapping_set(__rte_unused struct rte_eth_dev *eth_dev, -__rte_unused uint16_t queue_id, __rte_unused uint8_t stat_idx, -__rte_unused uint8_t is_rx) -{ - return 0; -} - -static struct rte_driver rte_virtio_driver = { - .type = PMD_PDEV, - .init = rte_virtio_pmd_init, -}; - -PMD_REGISTER_DRIVER(rte_virtio_driver); |