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authorChristian Ehrhardt <christian.ehrhardt@canonical.com>2017-03-02 16:15:51 +0100
committerChristian Ehrhardt <christian.ehrhardt@canonical.com>2017-03-03 14:41:36 +0100
commitce3d555e43e3795b5d9507fcfc76b7a0a92fd0d6 (patch)
tree3a9e9f8f6a62c7146fb391eae34481b2af4f7ff2 /drivers/net/virtio/virtio_ethdev.c
parent6b3e017e5d25f15da73f7700f7f2ac553ef1a2e9 (diff)
Imported Upstream version 16.11.1
Change-Id: I1e965265578efaaf08e5628607f53d2386d2df9f Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Diffstat (limited to 'drivers/net/virtio/virtio_ethdev.c')
-rw-r--r--drivers/net/virtio/virtio_ethdev.c75
1 files changed, 69 insertions, 6 deletions
diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 079fd6c8..f5961ab7 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -152,6 +152,8 @@ static const struct rte_virtio_xstats_name_off rte_virtio_txq_stat_strings[] = {
#define VIRTIO_NB_TXQ_XSTATS (sizeof(rte_virtio_txq_stat_strings) / \
sizeof(rte_virtio_txq_stat_strings[0]))
+struct virtio_hw_internal virtio_hw_internal[RTE_MAX_ETHPORTS];
+
static int
virtio_send_command(struct virtnet_ctl *cvq, struct virtio_pmd_ctrl *ctrl,
int *dlen, int pkt_num)
@@ -360,7 +362,7 @@ virtio_init_queue(struct rte_eth_dev *dev, uint16_t 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 = hw->vtpci_ops->get_queue_num(hw, vtpci_queue_idx);
+ vq_size = VTPCI_OPS(hw)->get_queue_num(hw, vtpci_queue_idx);
PMD_INIT_LOG(DEBUG, "vq_size: %u", vq_size);
if (vq_size == 0) {
PMD_INIT_LOG(ERR, "virtqueue does not exist");
@@ -519,7 +521,7 @@ virtio_init_queue(struct rte_eth_dev *dev, uint16_t vtpci_queue_idx)
}
}
- if (hw->vtpci_ops->setup_queue(hw, vq) < 0) {
+ if (VTPCI_OPS(hw)->setup_queue(hw, vq) < 0) {
PMD_INIT_LOG(ERR, "setup_queue failed");
return -EINVAL;
}
@@ -893,6 +895,7 @@ virtio_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
for (t = 0; t < VIRTIO_NB_RXQ_XSTATS; t++) {
xstats[count].value = *(uint64_t *)(((char *)rxvq) +
rte_virtio_rxq_stat_strings[t].offset);
+ xstats[count].id = count;
count++;
}
}
@@ -908,6 +911,7 @@ virtio_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
for (t = 0; t < VIRTIO_NB_TXQ_XSTATS; t++) {
xstats[count].value = *(uint64_t *)(((char *)txvq) +
rte_virtio_txq_stat_strings[t].offset);
+ xstats[count].id = count;
count++;
}
}
@@ -1114,7 +1118,7 @@ virtio_negotiate_features(struct virtio_hw *hw, uint64_t req_features)
req_features);
/* Read device(host) feature bits */
- host_features = hw->vtpci_ops->get_features(hw);
+ host_features = VTPCI_OPS(hw)->get_features(hw);
PMD_INIT_LOG(DEBUG, "host_features before negotiate = %" PRIx64,
host_features);
@@ -1204,14 +1208,14 @@ virtio_init_device(struct rte_eth_dev *eth_dev, uint64_t req_features)
if (virtio_negotiate_features(hw, req_features) < 0)
return -1;
+ rte_eth_copy_pci_info(eth_dev, pci_dev);
+
/* If host does not support status then disable LSC */
if (!vtpci_with_feature(hw, VIRTIO_NET_F_STATUS))
eth_dev->data->dev_flags &= ~RTE_ETH_DEV_INTR_LSC;
else
eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_LSC;
- rte_eth_copy_pci_info(eth_dev, pci_dev);
-
rx_func_get(eth_dev);
/* Setting up rx_header size for the device */
@@ -1287,6 +1291,52 @@ virtio_init_device(struct rte_eth_dev *eth_dev, uint64_t req_features)
}
/*
+ * Remap the PCI device again (IO port map for legacy device and
+ * memory map for modern device), so that the secondary process
+ * could have the PCI initiated correctly.
+ */
+static int
+virtio_remap_pci(struct rte_pci_device *pci_dev, struct virtio_hw *hw)
+{
+ if (hw->modern) {
+ /*
+ * We don't have to re-parse the PCI config space, since
+ * rte_eal_pci_map_device() makes sure the mapped address
+ * in secondary process would equal to the one mapped in
+ * the primary process: error will be returned if that
+ * requirement is not met.
+ *
+ * That said, we could simply reuse all cap pointers
+ * (such as dev_cfg, common_cfg, etc.) parsed from the
+ * primary process, which is stored in shared memory.
+ */
+ if (rte_eal_pci_map_device(pci_dev)) {
+ PMD_INIT_LOG(DEBUG, "failed to map pci device!");
+ return -1;
+ }
+ } else {
+ if (rte_eal_pci_ioport_map(pci_dev, 0, VTPCI_IO(hw)) < 0)
+ return -1;
+ }
+
+ return 0;
+}
+
+static void
+virtio_set_vtpci_ops(struct virtio_hw *hw)
+{
+#ifdef RTE_VIRTIO_USER
+ if (hw->virtio_user_dev)
+ VTPCI_OPS(hw) = &virtio_user_ops;
+ else
+#endif
+ if (hw->modern)
+ VTPCI_OPS(hw) = &modern_ops;
+ else
+ VTPCI_OPS(hw) = &legacy_ops;
+}
+
+/*
* This function is based on probe() function in virtio_pci.c
* It returns 0 on success.
*/
@@ -1304,7 +1354,19 @@ eth_virtio_dev_init(struct rte_eth_dev *eth_dev)
eth_dev->tx_pkt_burst = &virtio_xmit_pkts;
if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
- rx_func_get(eth_dev);
+ if (!hw->virtio_user_dev) {
+ ret = virtio_remap_pci(eth_dev->pci_dev, hw);
+ if (ret)
+ return ret;
+ }
+
+ virtio_set_vtpci_ops(hw);
+ if (hw->use_simple_rxtx) {
+ eth_dev->tx_pkt_burst = virtio_xmit_pkts_simple;
+ eth_dev->rx_pkt_burst = virtio_recv_pkts_vec;
+ } else {
+ rx_func_get(eth_dev);
+ }
return 0;
}
@@ -1318,6 +1380,7 @@ eth_virtio_dev_init(struct rte_eth_dev *eth_dev)
}
pci_dev = eth_dev->pci_dev;
+ hw->port_id = eth_dev->data->port_id;
if (pci_dev) {
ret = vtpci_init(pci_dev, hw, &dev_flags);