/*-
* BSD LICENSE
- *
+ *
* Copyright(c) 2010-2014 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
* * 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
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
+#ifdef RTE_EXEC_ENV_LINUXAPP
+#include <dirent.h>
+#endif
#include <rte_ethdev.h>
#include <rte_memcpy.h>
#include <rte_memory.h>
#include <rte_eal.h>
+#include <rte_dev.h>
#include "virtio_ethdev.h"
#include "virtio_pci.h"
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,
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_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
*/
{ .vendor_id = 0, /* sentinel */ },
};
+static int
+virtio_send_command(struct virtqueue *vq, struct virtio_pmd_ctrl *ctrl,
+ int *dlen, int pkt_num)
+{
+ uint32_t head = vq->vq_desc_head_idx, i;
+ int k, sum = 0;
+ virtio_net_ctrl_ack status = ~0;
+ struct virtio_pmd_ctrl result;
+
+ ctrl->status = status;
+
+ if (!vq->hw->cvq) {
+ PMD_INIT_LOG(ERR,
+ "%s(): Control queue is not supported.",
+ __func__);
+ return -1;
+ }
+
+ 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);
+
+ while (vq->vq_used_cons_idx == vq->vq_ring.used->idx)
+ 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;
+
+ rmb();
+
+ 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
+ = VIRTIO_DEV_PRIVATE_TO_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;
+}
+
int virtio_dev_queue_setup(struct rte_eth_dev *dev,
int queue_type,
uint16_t queue_idx,
const struct rte_memzone *mz;
uint16_t vq_size;
int size;
- struct virtio_hw *hw =
+ struct virtio_hw *hw =
VIRTIO_DEV_PRIVATE_TO_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: %d\n", vtpci_queue_idx);
+ PMD_INIT_LOG(DEBUG, "selecting queue: %d", 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: %d nb_desc:%d\n", vq_size, nb_desc);
+ PMD_INIT_LOG(DEBUG, "vq_size: %d nb_desc:%d", vq_size, nb_desc);
if (nb_desc == 0)
nb_desc = vq_size;
if (vq_size == 0) {
- PMD_INIT_LOG(ERR, "%s: virtqueue does not exist\n", __func__);
- return (-EINVAL);
+ PMD_INIT_LOG(ERR, "%s: virtqueue does not exist", __func__);
+ return -EINVAL;
} else if (!rte_is_power_of_2(vq_size)) {
- PMD_INIT_LOG(ERR, "%s: virtqueue size is not powerof 2\n", __func__);
- return (-EINVAL);
+ PMD_INIT_LOG(ERR, "%s: virtqueue size is not powerof 2", __func__);
+ return -EINVAL;
} else if (nb_desc != vq_size) {
- PMD_INIT_LOG(ERR, "Warning: nb_desc(%d) is not equal to vq size (%d), fall to vq size\n",
+ PMD_INIT_LOG(ERR, "Warning: nb_desc(%d) is not equal to vq size (%d), fall to vq size",
nb_desc, vq_size);
nb_desc = vq_size;
}
if (queue_type == VTNET_RQ) {
- rte_snprintf(vq_name, sizeof(vq_name), "port%d_rvq%d",
- dev->data->port_id, queue_idx);
+ 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), CACHE_LINE_SIZE);
- memcpy(vq->vq_name, vq_name, sizeof(vq->vq_name));
- } else if(queue_type == VTNET_TQ) {
- rte_snprintf(vq_name, sizeof(vq_name), "port%d_tvq%d",
+ vq_size * sizeof(struct vq_desc_extra), RTE_CACHE_LINE_SIZE);
+ } 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), CACHE_LINE_SIZE);
- memcpy(vq->vq_name, vq_name, sizeof(vq->vq_name));
- } else if(queue_type == VTNET_CQ) {
- rte_snprintf(vq_name, sizeof(vq_name), "port%d_cvq",
- dev->data->port_id);
- vq = rte_zmalloc(vq_name, sizeof(struct virtqueue),
- CACHE_LINE_SIZE);
- memcpy(vq->vq_name, vq_name, sizeof(vq->vq_name));
+ 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\n", __func__);
- return (-ENOMEM);
+ PMD_INIT_LOG(ERR, "%s: Can not allocate virtqueue", __func__);
+ return (-ENOMEM);
}
+
vq->hw = hw;
vq->port_id = dev->data->port_id;
vq->queue_id = queue_idx;
*/
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\n", size, vq->vq_ring_size);
+ 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);
+ socket_id, 0, VIRTIO_PCI_VRING_ALIGN);
if (mz == NULL) {
rte_free(vq);
- return (-ENOMEM);
+ 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!\n");
+ * 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);
+ 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"\n", (uint64_t)mz->phys_addr);
- PMD_INIT_LOG(DEBUG, "vq->vq_ring_virt_mem: 0x%"PRIx64"\n", (uint64_t)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)mz->addr);
vq->virtio_net_hdr_mz = NULL;
- vq->virtio_net_hdr_mem = (void *)NULL;
+ vq->virtio_net_hdr_mem = 0;
if (queue_type == VTNET_TQ) {
- /*
- * For each xmit packet, allocate a virtio_net_hdr
- */
- rte_snprintf(vq_name, sizeof(vq_name), "port%d_tvq%d_hdrzone",
+ /*
+ * 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 * sizeof(struct virtio_net_hdr),
- socket_id, 0, CACHE_LINE_SIZE);
+ vq_size * hw->vtnet_hdr_size,
+ socket_id, 0, RTE_CACHE_LINE_SIZE);
if (vq->virtio_net_hdr_mz == NULL) {
rte_free(vq);
- return (-ENOMEM);
+ return -ENOMEM;
}
- vq->virtio_net_hdr_mem = (void *)(uintptr_t)vq->virtio_net_hdr_mz->phys_addr;
- memset(vq->virtio_net_hdr_mz->addr, 0, vq_size * sizeof(struct virtio_net_hdr));
+ 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 */
- rte_snprintf(vq_name, sizeof(vq_name), "port%d_cvq_hdrzone",
+ 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, CACHE_LINE_SIZE);
+ PAGE_SIZE, socket_id, 0, RTE_CACHE_LINE_SIZE);
if (vq->virtio_net_hdr_mz == NULL) {
rte_free(vq);
- return (-ENOMEM);
+ return -ENOMEM;
}
- vq->virtio_net_hdr_mem = (void *)(uintptr_t)vq->virtio_net_hdr_mz->phys_addr;
+ vq->virtio_net_hdr_mem =
+ vq->virtio_net_hdr_mz->phys_addr;
memset(vq->virtio_net_hdr_mz->addr, 0, PAGE_SIZE);
}
VIRTIO_WRITE_REG_4(hw, VIRTIO_PCI_QUEUE_PFN,
mz->phys_addr >> VIRTIO_PCI_QUEUE_ADDR_SHIFT);
*pvq = vq;
- return (0);
+ return 0;
}
static int
-virtio_dev_cq_queue_setup(struct rte_eth_dev *dev,
- unsigned int socket_id)
+virtio_dev_cq_queue_setup(struct rte_eth_dev *dev, uint16_t vtpci_queue_idx,
+ uint32_t socket_id)
{
struct virtqueue *vq;
uint16_t nb_desc = 0;
VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
PMD_INIT_FUNC_TRACE();
- ret = virtio_dev_queue_setup(dev, VTNET_CQ, 0, VTNET_SQ_CQ_QUEUE_IDX,
- nb_desc, socket_id, &vq);
+ ret = virtio_dev_queue_setup(dev, VTNET_CQ, VTNET_SQ_CQ_QUEUE_IDX,
+ vtpci_queue_idx, nb_desc, socket_id, &vq);
+
if (ret < 0) {
- PMD_INIT_LOG(ERR, "control vq initialization failed\n");
+ PMD_INIT_LOG(ERR, "control vq initialization failed");
return ret;
}
hw->cvq = vq;
- return (0);
+ return 0;
}
static void
virtio_dev_stop(dev);
}
+static void
+virtio_dev_promiscuous_enable(struct rte_eth_dev *dev)
+{
+ struct virtio_hw *hw
+ = VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct virtio_pmd_ctrl ctrl;
+ int dlen[1];
+ int ret;
+
+ 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
+ = VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct virtio_pmd_ctrl ctrl;
+ int dlen[1];
+ int ret;
+
+ 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
+ = VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct virtio_pmd_ctrl ctrl;
+ int dlen[1];
+ int ret;
+
+ 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
+ = VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct virtio_pmd_ctrl ctrl;
+ int dlen[1];
+ int ret;
+
+ 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 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,
-
- .dev_infos_get = virtio_dev_info_get,
- .stats_get = virtio_dev_stats_get,
- .stats_reset = virtio_dev_stats_reset,
- .link_update = virtio_dev_link_update,
- .mac_addr_add = NULL,
- .mac_addr_remove = NULL,
- .rx_queue_setup = virtio_dev_rx_queue_setup,
- .rx_queue_release = virtio_dev_rx_queue_release, /* meaningfull only to multiple queue */
- .tx_queue_setup = virtio_dev_tx_queue_setup,
- .tx_queue_release = virtio_dev_tx_queue_release /* meaningfull only to multiple queue */
+ .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,
+ .stats_reset = virtio_dev_stats_reset,
+ .link_update = virtio_dev_link_update,
+ .mac_addr_add = NULL,
+ .mac_addr_remove = NULL,
+ .rx_queue_setup = virtio_dev_rx_queue_setup,
+ /* meaningfull only to multiple queue */
+ .rx_queue_release = virtio_dev_rx_queue_release,
+ .tx_queue_setup = virtio_dev_tx_queue_setup,
+ /* meaningfull only to multiple queue */
+ .tx_queue_release = virtio_dev_tx_queue_release,
+ /* collect stats per queue */
+ .queue_stats_mapping_set = virtio_dev_queue_stats_mapping_set,
};
static inline int
if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
*(uint64_t *)src) == 0)
- return (-1);
+ return -1;
- return (0);
+ return 0;
}
/**
if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
*(uint64_t *)src) == 0)
- return (-1);
+ return -1;
- return (0);
+ return 0;
}
static void
virtio_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
{
- struct virtio_hw *hw =
- VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
- if(stats)
- memcpy(stats, &hw->eth_stats, sizeof(*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 void
virtio_dev_stats_reset(struct rte_eth_dev *dev)
{
- struct virtio_hw *hw =
- VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
- /* Reset software totals */
- memset(&hw->eth_stats, 0, sizeof(hw->eth_stats));
+ 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;
+ }
+
+ 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;
+ }
+
+ dev->data->rx_mbuf_alloc_failed = 0;
}
static void
static void
virtio_negotiate_features(struct virtio_hw *hw)
{
- uint32_t guest_features, mask;
- mask = VIRTIO_NET_F_CTRL_VQ | VIRTIO_NET_F_CTRL_RX | VIRTIO_NET_F_CTRL_VLAN;
- mask |= VIRTIO_NET_F_CSUM | VIRTIO_NET_F_GUEST_CSUM ;
+ uint32_t host_features, mask;
+
+ mask = VIRTIO_NET_F_CTRL_VLAN;
+ mask |= VIRTIO_NET_F_CSUM | VIRTIO_NET_F_GUEST_CSUM;
/* TSO and LRO are only available when their corresponding
* checksum offload feature is also negotiated.
mask |= VIRTIO_NET_F_GUEST_TSO4 | VIRTIO_NET_F_GUEST_TSO6 | VIRTIO_NET_F_GUEST_ECN;
mask |= VTNET_LRO_FEATURES;
- /* rx_mbuf should not be in multiple merged segments */
- mask |= VIRTIO_NET_F_MRG_RXBUF;
-
/* not negotiating INDIRECT descriptor table support */
mask |= VIRTIO_RING_F_INDIRECT_DESC;
/* Prepare guest_features: feature that driver wants to support */
- guest_features = VTNET_FEATURES & ~mask;
+ hw->guest_features = VTNET_FEATURES & ~mask;
+ PMD_INIT_LOG(DEBUG, "guest_features before negotiate = %x",
+ hw->guest_features);
/* Read device(host) feature bits */
- hw->host_features = VIRTIO_READ_REG_4(hw, VIRTIO_PCI_HOST_FEATURES);
+ 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, guest_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);
+}
+#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;
+}
+#endif
+
/*
* This function is based on probe() function in virtio_pci.c
* It returns 0 on success.
eth_virtio_dev_init(__rte_unused struct eth_driver *eth_drv,
struct rte_eth_dev *eth_dev)
{
+ struct virtio_net_config *config;
+ struct virtio_net_config local_config;
+ uint32_t offset_conf = sizeof(config->mac);
struct rte_pci_device *pci_dev;
struct virtio_hw *hw =
VIRTIO_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
- if (RTE_PKTMBUF_HEADROOM < sizeof(struct virtio_net_hdr) ) {
- PMD_INIT_LOG(ERR,
- "MBUF HEADROOM should be enough to hold virtio net hdr\n");
- return (-1);
- }
- if (! (rte_eal_get_configuration()->flags & EAL_FLG_HIGH_IOPL)) {
+ if (RTE_PKTMBUF_HEADROOM < sizeof(struct virtio_net_hdr)) {
PMD_INIT_LOG(ERR,
- "IOPL call failed in EAL init - cannot use virtio PMD driver\n");
- return (-1);
+ "MBUF HEADROOM should be enough to hold virtio net hdr\n");
+ return -1;
}
eth_dev->dev_ops = &virtio_eth_dev_ops;
- eth_dev->rx_pkt_burst = &virtio_recv_pkts;
eth_dev->tx_pkt_burst = &virtio_xmit_pkts;
- if(rte_eal_process_type() == RTE_PROC_SECONDARY)
+ if (rte_eal_process_type() == RTE_PROC_SECONDARY)
return 0;
pci_dev = eth_dev->pci_dev;
- hw->device_id = pci_dev->id.device_id;
- hw->vendor_id = pci_dev->id.vendor_id;
- hw->io_base = (uint32_t)(uintptr_t)pci_dev->mem_resource[0].addr;
+#ifdef RTE_EXEC_ENV_LINUXAPP
+ {
+ char dirname[PATH_MAX];
+ char filename[PATH_MAX];
+ unsigned long start, size;
+
+ if (get_uio_dev(&pci_dev->addr, dirname, sizeof(dirname)) < 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;
+ }
- hw->max_rx_queues = VIRTIO_MAX_RX_QUEUES;
- hw->max_tx_queues = VIRTIO_MAX_TX_QUEUES;
+ /* 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);
+ }
+#endif
+ 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 known how to drive the device. */
vtpci_set_status(hw, VIRTIO_CONFIG_STATUS_DRIVER);
virtio_negotiate_features(hw);
+
/* Setting up rx_header size for the device */
- if(vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF))
+ if (vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF)) {
+ eth_dev->rx_pkt_burst = &virtio_recv_mergeable_pkts;
hw->vtnet_hdr_size = sizeof(struct virtio_net_hdr_mrg_rxbuf);
- else
+ } else {
+ eth_dev->rx_pkt_burst = &virtio_recv_pkts;
hw->vtnet_hdr_size = sizeof(struct virtio_net_hdr);
+ }
/* Allocate memory for storing MAC addresses */
eth_dev->data->mac_addrs = rte_zmalloc("virtio", ETHER_ADDR_LEN, 0);
PMD_INIT_LOG(ERR,
"Failed to allocate %d bytes needed to store MAC addresses",
ETHER_ADDR_LEN);
- return (-ENOMEM);
+ return -ENOMEM;
}
+
/* 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\n", hw->mac_addr[0],
- hw->mac_addr[1],hw->mac_addr[2], hw->mac_addr[3], hw->mac_addr[4], hw->mac_addr[5]);
+ 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;
+
+ if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS)) {
+ offset_conf += 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)) {
+ offset_conf += sizeof(config->max_virtqueue_pairs);
+ } else {
+ PMD_INIT_LOG(DEBUG,
+ "VIRTIO_NET_F_MQ is not supported");
+ config->max_virtqueue_pairs = 1;
+ }
+
+ vtpci_read_dev_config(hw, 0, (uint8_t *)config, offset_conf);
+
+ 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;
+ }
- if(vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_VQ))
- virtio_dev_cq_queue_setup(eth_dev, SOCKET_ID_ANY);
+ 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);
- return (0);
+ return 0;
}
static struct eth_driver rte_virtio_pmd = {
{
.name = "rte_virtio_pmd",
.id_table = pci_id_virtio_map,
- .drv_flags = RTE_PCI_DRV_NEED_IGB_UIO,
+ .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
},
.eth_dev_init = eth_virtio_dev_init,
.dev_private_size = sizeof(struct virtio_adapter),
* Register itself as the [Poll Mode] Driver of PCI virtio devices.
* Returns 0 on success.
*/
-int
-rte_virtio_pmd_init(void)
+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);
+ return 0;
}
/*
* It returns 0 on success.
*/
static int
-virtio_dev_configure(__rte_unused struct rte_eth_dev *dev)
+virtio_dev_configure(struct rte_eth_dev *dev)
{
- return (0);
+ const struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
+
+ PMD_INIT_LOG(DEBUG, "configure");
+
+ if (rxmode->hw_ip_checksum) {
+ PMD_DRV_LOG(ERR, "HW IP checksum not supported");
+ return (-EINVAL);
+ }
+
+ return 0;
}
static int
virtio_dev_start(struct rte_eth_dev *dev)
{
+ uint16_t nb_queues, i;
uint16_t status;
struct virtio_hw *hw =
VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
/* Tell the host we've known how to drive the device. */
vtpci_set_status(hw, VIRTIO_CONFIG_STATUS_DRIVER);
- hw->adapter_stopped = 0;
+ virtio_dev_cq_start(dev);
/* Do final configuration before rx/tx engine starts */
virtio_dev_rxtx_start(dev);
/* Check VIRTIO_NET_F_STATUS for link status*/
- if(vtpci_with_feature(hw, VIRTIO_NET_F_STATUS)) {
-
+ if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS)) {
vtpci_read_dev_config(hw,
offsetof(struct virtio_net_config, status),
&status, sizeof(status));
- if((status & VIRTIO_NET_S_LINK_UP) == 0) {
- PMD_INIT_LOG(ERR, "Port: %d Link is DOWN\n", dev->data->port_id);
- return (-EIO);
+ if ((status & VIRTIO_NET_S_LINK_UP) == 0) {
+ PMD_INIT_LOG(ERR, "Port: %d Link is DOWN",
+ dev->data->port_id);
+ return -EIO;
} else {
- PMD_INIT_LOG(DEBUG, "Port: %d Link is UP\n", dev->data->port_id);
+ PMD_INIT_LOG(DEBUG, "Port: %d Link is UP",
+ dev->data->port_id);
}
}
vtpci_reinit_complete(hw);
*Otherwise the tap backend might already stop its queue due to fullness.
*vhost backend will have no chance to be waked up
*/
- virtqueue_notify(dev->data->rx_queues[0]);
- PMD_INIT_LOG(DEBUG, "Notified backend at initialization\n");
- return (0);
+ 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 = 0;
- PMD_INIT_LOG(DEBUG, "Before freeing rxq used and unused buf \n");
- VIRTQUEUE_DUMP((struct virtqueue *)dev->data->rx_queues[0]);
- while( (buf =(struct rte_mbuf *)virtqueue_detatch_unused(dev->data->rx_queues[0])) != NULL) {
- rte_pktmbuf_free_seg(buf);
- i++;
- }
- PMD_INIT_LOG(DEBUG, "free %d mbufs\n", i);
- PMD_INIT_LOG(DEBUG, "After freeing rxq used and unused buf\n");
- VIRTQUEUE_DUMP((struct virtqueue *)dev->data->rx_queues[0]);
- PMD_INIT_LOG(DEBUG, "Before freeing txq used and unused bufs\n");
- VIRTQUEUE_DUMP((struct virtqueue *)dev->data->tx_queues[0]);
- i = 0;
- while( (buf = (struct rte_mbuf *)virtqueue_detatch_unused(dev->data->tx_queues[0])) != NULL) {
- rte_pktmbuf_free_seg(buf);
- i++;
- }
- PMD_INIT_LOG(DEBUG, "free %d mbufs\n", i);
- PMD_INIT_LOG(DEBUG, "After freeing txq used and unused buf\n");
- VIRTQUEUE_DUMP((struct virtqueue *)dev->data->tx_queues[0]);
+ 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]);
+
+ 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]);
+ }
}
/*
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\n");
+ 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) {
+ if ((status & VIRTIO_NET_S_LINK_UP) == 0) {
link.link_status = 0;
- PMD_INIT_LOG(DEBUG, "Port %d is down\n",dev->data->port_id);
+ 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\n",dev->data->port_id);
+ PMD_INIT_LOG(DEBUG, "Port %d is up",
+ dev->data->port_id);
}
} else {
- link.link_status = 1; //Link up
+ link.link_status = 1; /* Link up */
}
virtio_dev_atomic_write_link_status(dev, &link);
- if(old.link_status == link.link_status)
- return (-1);
+ if (old.link_status == link.link_status)
+ return -1;
/*changed*/
- return (0);
+ return 0;
}
static void
virtio_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
{
struct virtio_hw *hw = VIRTIO_DEV_PRIVATE_TO_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->max_rx_pktlen = VIRTIO_MAX_RX_PKTLEN;
dev_info->max_mac_addrs = VIRTIO_MAX_MAC_ADDRS;
}
+
+/*
+ * 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);
git.droids-corp.org / dpdk.git / blobdiff