#include <rte_ethdev.h>
#include <rte_malloc.h>
#include <rte_memcpy.h>
+#include <rte_memzone.h>
#include <rte_string_fns.h>
#include <rte_dev.h>
#include <rte_kvargs.h>
+#include <rte_errno.h>
#define ETH_RING_NUMA_NODE_ACTION_ARG "nodeaction"
#define ETH_RING_ACTION_CREATE "CREATE"
#define ETH_RING_ACTION_ATTACH "ATTACH"
-static const char *ring_ethdev_driver_name = "Ring PMD";
-
static const char *valid_arguments[] = {
ETH_RING_NUMA_NODE_ACTION_ARG,
NULL
.mac_addr_add = eth_mac_addr_add,
};
-static struct eth_driver rte_ring_pmd = {
- .pci_drv = {
- .name = "rte_ring_pmd",
- .drv_flags = RTE_PCI_DRV_DETACHABLE,
- },
-};
-
-static struct rte_pci_id id_table;
-
int
rte_eth_from_rings(const char *name, struct rte_ring *const rx_queues[],
const unsigned nb_rx_queues,
const unsigned numa_node)
{
struct rte_eth_dev_data *data = NULL;
- struct rte_pci_device *pci_dev = NULL;
struct pmd_internals *internals = NULL;
struct rte_eth_dev *eth_dev = NULL;
unsigned i;
/* do some parameter checking */
- if (rx_queues == NULL && nb_rx_queues > 0)
+ if (rx_queues == NULL && nb_rx_queues > 0) {
+ rte_errno = EINVAL;
goto error;
- if (tx_queues == NULL && nb_tx_queues > 0)
+ }
+ if (tx_queues == NULL && nb_tx_queues > 0) {
+ rte_errno = EINVAL;
+ goto error;
+ }
+ if (nb_rx_queues > RTE_PMD_RING_MAX_RX_RINGS) {
+ rte_errno = EINVAL;
goto error;
+ }
RTE_LOG(INFO, PMD, "Creating rings-backed ethdev on numa socket %u\n",
numa_node);
* and internal (private) data
*/
data = rte_zmalloc_socket(name, sizeof(*data), 0, numa_node);
- if (data == NULL)
+ if (data == NULL) {
+ rte_errno = ENOMEM;
goto error;
+ }
- pci_dev = rte_zmalloc_socket(name, sizeof(*pci_dev), 0, numa_node);
- if (pci_dev == NULL)
+ data->rx_queues = rte_zmalloc_socket(name, sizeof(void *) * nb_rx_queues,
+ 0, numa_node);
+ if (data->rx_queues == NULL) {
+ rte_errno = ENOMEM;
goto error;
+ }
+
+ data->tx_queues = rte_zmalloc_socket(name, sizeof(void *) * nb_tx_queues,
+ 0, numa_node);
+ if (data->tx_queues == NULL) {
+ rte_errno = ENOMEM;
+ goto error;
+ }
internals = rte_zmalloc_socket(name, sizeof(*internals), 0, numa_node);
- if (internals == NULL)
+ if (internals == NULL) {
+ rte_errno = ENOMEM;
goto error;
+ }
/* reserve an ethdev entry */
eth_dev = rte_eth_dev_allocate(name, RTE_ETH_DEV_VIRTUAL);
- if (eth_dev == NULL)
+ if (eth_dev == NULL) {
+ rte_errno = ENOSPC;
goto error;
-
+ }
/* now put it all together
* - store queue data in internals,
- * - store numa_node info in pci_driver
- * - point eth_dev_data to internals and pci_driver
+ * - store numa_node info in eth_dev_data
+ * - point eth_dev_data to internals
* - and point eth_dev structure to new eth_dev_data structure
*/
/* NOTE: we'll replace the data element, of originally allocated eth_dev
internals->nb_tx_queues = nb_tx_queues;
for (i = 0; i < nb_rx_queues; i++) {
internals->rx_ring_queues[i].rng = rx_queues[i];
+ data->rx_queues[i] = &internals->rx_ring_queues[i];
}
for (i = 0; i < nb_tx_queues; i++) {
internals->tx_ring_queues[i].rng = tx_queues[i];
+ data->tx_queues[i] = &internals->tx_ring_queues[i];
}
- rte_ring_pmd.pci_drv.name = ring_ethdev_driver_name;
- rte_ring_pmd.pci_drv.id_table = &id_table;
-
- pci_dev->numa_node = numa_node;
- pci_dev->driver = &rte_ring_pmd.pci_drv;
-
data->dev_private = internals;
data->port_id = eth_dev->data->port_id;
memmove(data->name, eth_dev->data->name, sizeof(data->name));
data->mac_addrs = &internals->address;
eth_dev->data = data;
- eth_dev->driver = &rte_ring_pmd;
+ eth_dev->driver = NULL;
eth_dev->dev_ops = &ops;
- eth_dev->pci_dev = pci_dev;
+ eth_dev->data->dev_flags = RTE_ETH_DEV_DETACHABLE;
+ eth_dev->data->kdrv = RTE_KDRV_NONE;
+ eth_dev->data->drv_name = drivername;
+ eth_dev->data->numa_node = numa_node;
+
TAILQ_INIT(&(eth_dev->link_intr_cbs));
/* finally assign rx and tx ops */
return data->port_id;
error:
+ rte_free(data->rx_queues);
+ rte_free(data->tx_queues);
rte_free(data);
- rte_free(pci_dev);
rte_free(internals);
return -1;
}
+int
+rte_eth_from_ring(struct rte_ring *r)
+{
+ return rte_eth_from_rings(r->name, &r, 1, &r, 1,
+ r->memzone ? r->memzone->socket_id : SOCKET_ID_ANY);
+}
+
enum dev_action{
DEV_CREATE,
DEV_ATTACH
return 0;
}
-
-static int
-eth_dev_ring_pair_create(const char *name, const unsigned numa_node,
- enum dev_action action)
-{
- /* rx and tx are so-called from point of view of first port.
- * They are inverted from the point of view of second port
- */
- struct rte_ring *rx[RTE_PMD_RING_MAX_RX_RINGS];
- struct rte_ring *tx[RTE_PMD_RING_MAX_TX_RINGS];
- unsigned i;
- char rx_rng_name[RTE_RING_NAMESIZE];
- char tx_rng_name[RTE_RING_NAMESIZE];
- unsigned num_rings = RTE_MIN(RTE_PMD_RING_MAX_RX_RINGS,
- RTE_PMD_RING_MAX_TX_RINGS);
-
- for (i = 0; i < num_rings; i++) {
- snprintf(rx_rng_name, sizeof(rx_rng_name), "ETH_RX%u_%s", i, name);
- rx[i] = (action == DEV_CREATE) ?
- rte_ring_create(rx_rng_name, 1024, numa_node,
- RING_F_SP_ENQ|RING_F_SC_DEQ) :
- rte_ring_lookup(rx_rng_name);
- if (rx[i] == NULL)
- return -1;
- snprintf(tx_rng_name, sizeof(tx_rng_name), "ETH_TX%u_%s", i, name);
- tx[i] = (action == DEV_CREATE) ?
- rte_ring_create(tx_rng_name, 1024, numa_node,
- RING_F_SP_ENQ|RING_F_SC_DEQ):
- rte_ring_lookup(tx_rng_name);
- if (tx[i] == NULL)
- return -1;
- }
-
- if (rte_eth_from_rings(rx_rng_name, rx, num_rings, tx, num_rings,
- numa_node) < 0 ||
- rte_eth_from_rings(tx_rng_name, tx, num_rings, rx,
- num_rings, numa_node) < 0)
- return -1;
-
- return 0;
-}
-
-int
-rte_eth_ring_pair_create(const char *name, const unsigned numa_node)
-{
- RTE_LOG(WARNING, PMD, "rte_eth_ring_pair_create is deprecated\n");
- return eth_dev_ring_pair_create(name, numa_node, DEV_CREATE);
-}
-
-int
-rte_eth_ring_pair_attach(const char *name, const unsigned numa_node)
-{
- RTE_LOG(WARNING, PMD, "rte_eth_ring_pair_attach is deprecated\n");
- return eth_dev_ring_pair_create(name, numa_node, DEV_ATTACH);
-}
-
struct node_action_pair {
char name[PATH_MAX];
unsigned node;
eth_dev_stop(eth_dev);
rte_free(eth_dev->data->dev_private);
rte_free(eth_dev->data);
- rte_free(eth_dev->pci_dev);
rte_eth_dev_release_port(eth_dev);
return 0;
git.droids-corp.org / dpdk.git / blobdiff