/*-
* BSD LICENSE
*
- * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ * Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
#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
};
+enum dev_action {
+ DEV_CREATE,
+ DEV_ATTACH
+};
+
struct ring_queue {
struct rte_ring *rng;
rte_atomic64_t rx_pkts;
};
struct pmd_internals {
- unsigned nb_rx_queues;
- unsigned nb_tx_queues;
+ unsigned max_rx_queues;
+ unsigned max_tx_queues;
struct ring_queue rx_ring_queues[RTE_PMD_RING_MAX_RX_RINGS];
struct ring_queue tx_ring_queues[RTE_PMD_RING_MAX_TX_RINGS];
struct ether_addr address;
+ enum dev_action action;
};
static struct rte_eth_link pmd_link = {
.link_speed = 10000,
.link_duplex = ETH_LINK_FULL_DUPLEX,
- .link_status = 0
+ .link_status = ETH_LINK_DOWN,
};
static uint16_t
static int
eth_dev_start(struct rte_eth_dev *dev)
{
- dev->data->dev_link.link_status = 1;
+ dev->data->dev_link.link_status = ETH_LINK_UP;
return 0;
}
static void
eth_dev_stop(struct rte_eth_dev *dev)
{
- dev->data->dev_link.link_status = 0;
+ dev->data->dev_link.link_status = ETH_LINK_DOWN;
}
static int
eth_dev_set_link_down(struct rte_eth_dev *dev)
{
- dev->data->dev_link.link_status = 0;
+ dev->data->dev_link.link_status = ETH_LINK_DOWN;
return 0;
}
static int
eth_dev_set_link_up(struct rte_eth_dev *dev)
{
- dev->data->dev_link.link_status = 1;
+ dev->data->dev_link.link_status = ETH_LINK_UP;
return 0;
}
static int
-eth_rx_queue_setup(struct rte_eth_dev *dev,uint16_t rx_queue_id,
+eth_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
uint16_t nb_rx_desc __rte_unused,
unsigned int socket_id __rte_unused,
const struct rte_eth_rxconf *rx_conf __rte_unused,
dev_info->driver_name = drivername;
dev_info->max_mac_addrs = 1;
dev_info->max_rx_pktlen = (uint32_t)-1;
- dev_info->max_rx_queues = (uint16_t)internals->nb_rx_queues;
- dev_info->max_tx_queues = (uint16_t)internals->nb_tx_queues;
+ dev_info->max_rx_queues = (uint16_t)internals->max_rx_queues;
+ dev_info->max_tx_queues = (uint16_t)internals->max_tx_queues;
dev_info->min_rx_bufsize = 0;
dev_info->pci_dev = NULL;
}
static void
-eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *igb_stats)
+eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
{
unsigned i;
unsigned long rx_total = 0, tx_total = 0, tx_err_total = 0;
const struct pmd_internals *internal = dev->data->dev_private;
for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS &&
- i < internal->nb_rx_queues; i++) {
- igb_stats->q_ipackets[i] = internal->rx_ring_queues[i].rx_pkts.cnt;
- rx_total += igb_stats->q_ipackets[i];
+ i < dev->data->nb_rx_queues; i++) {
+ stats->q_ipackets[i] = internal->rx_ring_queues[i].rx_pkts.cnt;
+ rx_total += stats->q_ipackets[i];
}
for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS &&
- i < internal->nb_tx_queues; i++) {
- igb_stats->q_opackets[i] = internal->tx_ring_queues[i].tx_pkts.cnt;
- igb_stats->q_errors[i] = internal->tx_ring_queues[i].err_pkts.cnt;
- tx_total += igb_stats->q_opackets[i];
- tx_err_total += igb_stats->q_errors[i];
+ i < dev->data->nb_tx_queues; i++) {
+ stats->q_opackets[i] = internal->tx_ring_queues[i].tx_pkts.cnt;
+ stats->q_errors[i] = internal->tx_ring_queues[i].err_pkts.cnt;
+ tx_total += stats->q_opackets[i];
+ tx_err_total += stats->q_errors[i];
}
- igb_stats->ipackets = rx_total;
- igb_stats->opackets = tx_total;
- igb_stats->oerrors = tx_err_total;
+ stats->ipackets = rx_total;
+ stats->opackets = tx_total;
+ stats->oerrors = tx_err_total;
}
static void
{
unsigned i;
struct pmd_internals *internal = dev->data->dev_private;
- for (i = 0; i < internal->nb_rx_queues; i++)
+ for (i = 0; i < dev->data->nb_rx_queues; i++)
internal->rx_ring_queues[i].rx_pkts.cnt = 0;
- for (i = 0; i < internal->nb_tx_queues; i++) {
+ for (i = 0; i < dev->data->nb_tx_queues; i++) {
internal->tx_ring_queues[i].tx_pkts.cnt = 0;
internal->tx_ring_queues[i].err_pkts.cnt = 0;
}
.mac_addr_add = eth_mac_addr_add,
};
-int
-rte_eth_from_rings(const char *name, struct rte_ring *const rx_queues[],
- const unsigned nb_rx_queues,
- struct rte_ring *const tx_queues[],
- const unsigned nb_tx_queues,
- const unsigned numa_node)
+static int
+do_eth_dev_ring_create(const char *name,
+ struct rte_ring * const rx_queues[], const unsigned nb_rx_queues,
+ struct rte_ring *const tx_queues[], const unsigned nb_tx_queues,
+ const unsigned numa_node, enum dev_action action)
{
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;
- struct eth_driver *eth_drv = NULL;
- struct rte_pci_id *id_table = NULL;
-
unsigned i;
- /* do some parameter checking */
- if (rx_queues == NULL && nb_rx_queues > 0)
- goto error;
- if (tx_queues == NULL && nb_tx_queues > 0)
- 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;
+ }
- id_table = rte_zmalloc_socket(name, sizeof(*id_table), 0, numa_node);
- if (id_table == NULL)
+ 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)
- goto error;
-
- eth_drv = rte_zmalloc_socket(name, sizeof(*eth_drv), 0, numa_node);
- if (eth_drv == 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
* so the rings are local per-process */
- internals->nb_rx_queues = nb_rx_queues;
- internals->nb_tx_queues = nb_tx_queues;
+ internals->action = action;
+ internals->max_rx_queues = nb_rx_queues;
+ internals->max_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];
}
- eth_drv->pci_drv.name = ring_ethdev_driver_name;
- eth_drv->pci_drv.id_table = id_table;
-
- pci_dev->numa_node = numa_node;
- pci_dev->driver = ð_drv->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->nb_rx_queues = (uint16_t)nb_rx_queues;
data->nb_tx_queues = (uint16_t)nb_tx_queues;
data->dev_link = pmd_link;
data->mac_addrs = &internals->address;
eth_dev->data = data;
- eth_dev->driver = eth_drv;
+ eth_dev->driver = NULL;
eth_dev->dev_ops = &ops;
- eth_dev->pci_dev = pci_dev;
+ data->dev_flags = RTE_ETH_DEV_DETACHABLE;
+ data->kdrv = RTE_KDRV_NONE;
+ data->drv_name = drivername;
+ data->numa_node = numa_node;
+
TAILQ_INIT(&(eth_dev->link_intr_cbs));
/* finally assign rx and tx ops */
return data->port_id;
error:
+ if (data) {
+ rte_free(data->rx_queues);
+ rte_free(data->tx_queues);
+ }
rte_free(data);
- rte_free(pci_dev);
rte_free(internals);
return -1;
}
-enum dev_action{
- DEV_CREATE,
- DEV_ATTACH
-};
+int
+rte_eth_from_rings(const char *name, struct rte_ring *const rx_queues[],
+ const unsigned nb_rx_queues,
+ struct rte_ring *const tx_queues[],
+ const unsigned nb_tx_queues,
+ const unsigned numa_node)
+{
+ /* do some parameter checking */
+ if (rx_queues == NULL && nb_rx_queues > 0) {
+ rte_errno = EINVAL;
+ return -1;
+ }
+ if (tx_queues == NULL && nb_tx_queues > 0) {
+ rte_errno = EINVAL;
+ return -1;
+ }
+ if (nb_rx_queues > RTE_PMD_RING_MAX_RX_RINGS) {
+ rte_errno = EINVAL;
+ return -1;
+ }
+
+ return do_eth_dev_ring_create(name, rx_queues, nb_rx_queues,
+ tx_queues, nb_tx_queues, numa_node, DEV_ATTACH);
+}
+
+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);
+}
static int
eth_dev_ring_create(const char *name, const unsigned numa_node,
return -1;
}
- if (rte_eth_from_rings(name, rxtx, num_rings, rxtx, num_rings, numa_node) < 0)
- return -1;
-
- 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)
+ if (do_eth_dev_ring_create(name, rxtx, num_rings, rxtx, num_rings,
+ numa_node, action) < 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;
RTE_LOG(INFO, PMD, "Initializing pmd_ring for %s\n", name);
- if (params == NULL || params[0] == '\0')
- eth_dev_ring_create(name, rte_socket_id(), DEV_CREATE);
+ if (params == NULL || params[0] == '\0') {
+ ret = eth_dev_ring_create(name, rte_socket_id(), DEV_CREATE);
+ if (ret == -1) {
+ RTE_LOG(INFO, PMD,
+ "Attach to pmd_ring for %s\n", name);
+ ret = eth_dev_ring_create(name, rte_socket_id(),
+ DEV_ATTACH);
+ }
+ }
else {
kvlist = rte_kvargs_parse(params, valid_arguments);
if (!kvlist) {
RTE_LOG(INFO, PMD, "Ignoring unsupported parameters when creating"
" rings-backed ethernet device\n");
- eth_dev_ring_create(name, rte_socket_id(), DEV_CREATE);
- return 0;
+ ret = eth_dev_ring_create(name, rte_socket_id(),
+ DEV_CREATE);
+ if (ret == -1) {
+ RTE_LOG(INFO, PMD,
+ "Attach to pmd_ring for %s\n",
+ name);
+ ret = eth_dev_ring_create(name, rte_socket_id(),
+ DEV_ATTACH);
+ }
+ return ret;
} else {
ret = rte_kvargs_count(kvlist, ETH_RING_NUMA_NODE_ACTION_ARG);
- info = rte_zmalloc("struct node_action_list", sizeof(struct node_action_list) +
- (sizeof(struct node_action_pair) * ret), 0);
+ info = rte_zmalloc("struct node_action_list",
+ sizeof(struct node_action_list) +
+ (sizeof(struct node_action_pair) * ret),
+ 0);
if (!info)
goto out_free;
goto out_free;
for (info->count = 0; info->count < info->total; info->count++) {
- eth_dev_ring_create(name, info->list[info->count].node,
- info->list[info->count].action);
+ ret = eth_dev_ring_create(name,
+ info->list[info->count].node,
+ info->list[info->count].action);
+ if ((ret == -1) &&
+ (info->list[info->count].action == DEV_CREATE)) {
+ RTE_LOG(INFO, PMD,
+ "Attach to pmd_ring for %s\n",
+ name);
+ ret = eth_dev_ring_create(name,
+ info->list[info->count].node,
+ DEV_ATTACH);
+ }
}
}
}
return ret;
}
+static int
+rte_pmd_ring_devuninit(const char *name)
+{
+ struct rte_eth_dev *eth_dev = NULL;
+ struct pmd_internals *internals = NULL;
+ struct ring_queue *r = NULL;
+ uint16_t i;
+
+ RTE_LOG(INFO, PMD, "Un-Initializing pmd_ring for %s\n", name);
+
+ if (name == NULL)
+ return -EINVAL;
+
+ /* find an ethdev entry */
+ eth_dev = rte_eth_dev_allocated(name);
+ if (eth_dev == NULL)
+ return -ENODEV;
+
+ eth_dev_stop(eth_dev);
+
+ if (eth_dev->data) {
+ internals = eth_dev->data->dev_private;
+ if (internals->action == DEV_CREATE) {
+ /*
+ * it is only necessary to delete the rings in rx_queues because
+ * they are the same used in tx_queues
+ */
+ for (i = 0; i < eth_dev->data->nb_rx_queues; i++) {
+ r = eth_dev->data->rx_queues[i];
+ rte_ring_free(r->rng);
+ }
+ }
+
+ rte_free(eth_dev->data->rx_queues);
+ rte_free(eth_dev->data->tx_queues);
+ rte_free(eth_dev->data->dev_private);
+ }
+
+ rte_free(eth_dev->data);
+
+ rte_eth_dev_release_port(eth_dev);
+ return 0;
+}
+
static struct rte_driver pmd_ring_drv = {
.name = "eth_ring",
.type = PMD_VDEV,
.init = rte_pmd_ring_devinit,
+ .uninit = rte_pmd_ring_devuninit,
};
PMD_REGISTER_DRIVER(pmd_ring_drv);
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