X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fring%2Frte_eth_ring.c;h=76355a1c7691082728773484086b88c1cc4c1219;hb=d04fc01de2298e2b7e405f499a919d1bd4d551f1;hp=c9ecb0e759b465156128b6af5de344796f255b1d;hpb=6a79f045ceaf0a7c81c5dade96a5eef07a4f5fa7;p=dpdk.git diff --git a/drivers/net/ring/rte_eth_ring.c b/drivers/net/ring/rte_eth_ring.c index c9ecb0e759..76355a1c76 100644 --- a/drivers/net/ring/rte_eth_ring.c +++ b/drivers/net/ring/rte_eth_ring.c @@ -36,21 +36,36 @@ #include #include #include -#include #include -#include +#include #include #include #define ETH_RING_NUMA_NODE_ACTION_ARG "nodeaction" #define ETH_RING_ACTION_CREATE "CREATE" #define ETH_RING_ACTION_ATTACH "ATTACH" +#define ETH_RING_INTERNAL_ARG "internal" static const char *valid_arguments[] = { ETH_RING_NUMA_NODE_ACTION_ARG, + ETH_RING_INTERNAL_ARG, NULL }; +struct ring_internal_args { + struct rte_ring * const *rx_queues; + const unsigned int nb_rx_queues; + struct rte_ring * const *tx_queues; + const unsigned int nb_tx_queues; + const unsigned int numa_node; + void *addr; /* self addr for sanity check */ +}; + +enum dev_action { + DEV_CREATE, + DEV_ATTACH +}; + struct ring_queue { struct rte_ring *rng; rte_atomic64_t rx_pkts; @@ -66,14 +81,15 @@ struct pmd_internals { struct ring_queue tx_ring_queues[RTE_PMD_RING_MAX_TX_RINGS]; struct ether_addr address; + enum dev_action action; }; -static const char *drivername = "Rings PMD"; static struct rte_eth_link pmd_link = { - .link_speed = 10000, + .link_speed = ETH_SPEED_NUM_10G, .link_duplex = ETH_LINK_FULL_DUPLEX, - .link_status = 0 + .link_status = ETH_LINK_DOWN, + .link_autoneg = ETH_LINK_SPEED_AUTONEG }; static uint16_t @@ -82,7 +98,7 @@ eth_ring_rx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs) void **ptrs = (void *)&bufs[0]; struct ring_queue *r = q; const uint16_t nb_rx = (uint16_t)rte_ring_dequeue_burst(r->rng, - ptrs, nb_bufs); + ptrs, nb_bufs, NULL); if (r->rng->flags & RING_F_SC_DEQ) r->rx_pkts.cnt += nb_rx; else @@ -96,7 +112,7 @@ eth_ring_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs) void **ptrs = (void *)&bufs[0]; struct ring_queue *r = q; const uint16_t nb_tx = (uint16_t)rte_ring_enqueue_burst(r->rng, - ptrs, nb_bufs); + ptrs, nb_bufs, NULL); if (r->rng->flags & RING_F_SP_ENQ) { r->tx_pkts.cnt += nb_tx; r->err_pkts.cnt += nb_bufs - nb_tx; @@ -113,27 +129,27 @@ eth_dev_configure(struct rte_eth_dev *dev __rte_unused) { return 0; } 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; } @@ -166,16 +182,14 @@ eth_dev_info(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info) { struct pmd_internals *internals = dev->data->dev_private; - 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->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 +static int eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats) { unsigned i; @@ -199,6 +213,8 @@ eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats) stats->ipackets = rx_total; stats->opackets = tx_total; stats->oerrors = tx_err_total; + + return 0; } static void @@ -220,12 +236,13 @@ eth_mac_addr_remove(struct rte_eth_dev *dev __rte_unused, { } -static void +static int eth_mac_addr_add(struct rte_eth_dev *dev __rte_unused, struct ether_addr *mac_addr __rte_unused, uint32_t index __rte_unused, uint32_t vmdq __rte_unused) { + return 0; } static void @@ -252,32 +269,22 @@ static const struct eth_dev_ops ops = { .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 struct rte_vdev_driver pmd_ring_drv; + +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 int numa_node, enum dev_action action, + struct rte_eth_dev **eth_dev_p) { struct rte_eth_dev_data *data = NULL; struct pmd_internals *internals = NULL; struct rte_eth_dev *eth_dev = NULL; + void **rx_queues_local = NULL; + void **tx_queues_local = NULL; unsigned i; - /* do some parameter checking */ - if (rx_queues == NULL && nb_rx_queues > 0) { - rte_errno = EINVAL; - goto error; - } - 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); @@ -290,16 +297,16 @@ rte_eth_from_rings(const char *name, struct rte_ring *const rx_queues[], goto error; } - data->rx_queues = rte_zmalloc_socket(name, + rx_queues_local = rte_zmalloc_socket(name, sizeof(void *) * nb_rx_queues, 0, numa_node); - if (data->rx_queues == NULL) { + if (rx_queues_local == NULL) { rte_errno = ENOMEM; goto error; } - data->tx_queues = rte_zmalloc_socket(name, + tx_queues_local = rte_zmalloc_socket(name, sizeof(void *) * nb_tx_queues, 0, numa_node); - if (data->tx_queues == NULL) { + if (tx_queues_local == NULL) { rte_errno = ENOMEM; goto error; } @@ -311,7 +318,7 @@ rte_eth_from_rings(const char *name, struct rte_ring *const rx_queues[], } /* reserve an ethdev entry */ - eth_dev = rte_eth_dev_allocate(name, RTE_ETH_DEV_VIRTUAL); + eth_dev = rte_eth_dev_allocate(name); if (eth_dev == NULL) { rte_errno = ENOSPC; goto error; @@ -326,6 +333,11 @@ rte_eth_from_rings(const char *name, struct rte_ring *const rx_queues[], /* NOTE: we'll replace the data element, of originally allocated eth_dev * so the rings are local per-process */ + rte_memcpy(data, eth_dev->data, sizeof(*data)); + data->rx_queues = rx_queues_local; + data->tx_queues = tx_queues_local; + + 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++) { @@ -338,40 +350,81 @@ rte_eth_from_rings(const char *name, struct rte_ring *const rx_queues[], } 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 = NULL; eth_dev->dev_ops = &ops; - 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 */ eth_dev->rx_pkt_burst = eth_ring_rx; eth_dev->tx_pkt_burst = eth_ring_tx; + *eth_dev_p = eth_dev; + return data->port_id; error: - if (data) { - rte_free(data->rx_queues); - rte_free(data->tx_queues); - } + rte_free(rx_queues_local); + rte_free(tx_queues_local); rte_free(data); rte_free(internals); return -1; } +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) +{ + struct ring_internal_args args = { + .rx_queues = rx_queues, + .nb_rx_queues = nb_rx_queues, + .tx_queues = tx_queues, + .nb_tx_queues = nb_tx_queues, + .numa_node = numa_node, + .addr = &args, + }; + char args_str[32] = { 0 }; + char ring_name[32] = { 0 }; + uint16_t port_id = RTE_MAX_ETHPORTS; + int ret; + + /* 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; + } + + snprintf(args_str, 32, "%s=%p", ETH_RING_INTERNAL_ARG, &args); + snprintf(ring_name, 32, "net_ring_%s", name); + + ret = rte_vdev_init(ring_name, args_str); + if (ret) { + rte_errno = EINVAL; + return -1; + } + + rte_eth_dev_get_port_by_name(ring_name, &port_id); + + return port_id; +} + int rte_eth_from_ring(struct rte_ring *r) { @@ -379,14 +432,9 @@ rte_eth_from_ring(struct rte_ring *r) r->memzone ? r->memzone->socket_id : SOCKET_ID_ANY); } -enum dev_action{ - DEV_CREATE, - DEV_ATTACH -}; - static int eth_dev_ring_create(const char *name, const unsigned numa_node, - enum dev_action action) + enum dev_action action, struct rte_eth_dev **eth_dev) { /* rx and tx are so-called from point of view of first port. * They are inverted from the point of view of second port @@ -407,7 +455,8 @@ 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) + if (do_eth_dev_ring_create(name, rxtx, num_rings, rxtx, num_rings, + numa_node, action, eth_dev) < 0) return -1; return 0; @@ -439,13 +488,14 @@ static int parse_kvlist (const char *key __rte_unused, const char *value, void * ret = -EINVAL; if (!name) { - RTE_LOG(WARNING, PMD, "command line paramter is empty for ring pmd!\n"); + RTE_LOG(WARNING, PMD, "command line parameter is empty for ring pmd!\n"); goto out; } node = strchr(name, ':'); if (!node) { - RTE_LOG(WARNING, PMD, "could not parse node value from %s", name); + RTE_LOG(WARNING, PMD, "could not parse node value from %s\n", + name); goto out; } @@ -454,7 +504,8 @@ static int parse_kvlist (const char *key __rte_unused, const char *value, void * action = strchr(node, ':'); if (!action) { - RTE_LOG(WARNING, PMD, "could not action value from %s", node); + RTE_LOG(WARNING, PMD, "could not parse action value from %s\n", + node); goto out; } @@ -491,39 +542,85 @@ out: } static int -rte_pmd_ring_devinit(const char *name, const char *params) +parse_internal_args(const char *key __rte_unused, const char *value, + void *data) +{ + struct ring_internal_args **internal_args = data; + void *args; + + sscanf(value, "%p", &args); + + *internal_args = args; + + if ((*internal_args)->addr != args) + return -1; + + return 0; +} + +static int +rte_pmd_ring_probe(struct rte_vdev_device *dev) { + const char *name, *params; struct rte_kvargs *kvlist = NULL; int ret = 0; struct node_action_list *info = NULL; + struct rte_eth_dev *eth_dev = NULL; + struct ring_internal_args *internal_args; + + name = rte_vdev_device_name(dev); + params = rte_vdev_device_args(dev); RTE_LOG(INFO, PMD, "Initializing pmd_ring for %s\n", name); if (params == NULL || params[0] == '\0') { - ret = eth_dev_ring_create(name, rte_socket_id(), DEV_CREATE); + ret = eth_dev_ring_create(name, rte_socket_id(), DEV_CREATE, + ð_dev); 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); + DEV_ATTACH, ð_dev); } - } - else { + } else { kvlist = rte_kvargs_parse(params, valid_arguments); if (!kvlist) { RTE_LOG(INFO, PMD, "Ignoring unsupported parameters when creating" " rings-backed ethernet device\n"); ret = eth_dev_ring_create(name, rte_socket_id(), - DEV_CREATE); + DEV_CREATE, ð_dev); 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); + DEV_ATTACH, ð_dev); } + + if (eth_dev) + eth_dev->device = &dev->device; + return ret; + } + + if (rte_kvargs_count(kvlist, ETH_RING_INTERNAL_ARG) == 1) { + ret = rte_kvargs_process(kvlist, ETH_RING_INTERNAL_ARG, + parse_internal_args, + &internal_args); + if (ret < 0) + goto out_free; + + ret = do_eth_dev_ring_create(name, + internal_args->rx_queues, + internal_args->nb_rx_queues, + internal_args->tx_queues, + internal_args->nb_tx_queues, + internal_args->numa_node, + DEV_ATTACH, + ð_dev); + if (ret >= 0) + ret = 0; } else { ret = rte_kvargs_count(kvlist, ETH_RING_NUMA_NODE_ACTION_ARG); info = rte_zmalloc("struct node_action_list", @@ -543,9 +640,10 @@ rte_pmd_ring_devinit(const char *name, const char *params) goto out_free; for (info->count = 0; info->count < info->total; info->count++) { - ret = eth_dev_ring_create(name, + ret = eth_dev_ring_create(info->list[info->count].name, info->list[info->count].node, - info->list[info->count].action); + info->list[info->count].action, + ð_dev); if ((ret == -1) && (info->list[info->count].action == DEV_CREATE)) { RTE_LOG(INFO, PMD, @@ -553,12 +651,16 @@ rte_pmd_ring_devinit(const char *name, const char *params) name); ret = eth_dev_ring_create(name, info->list[info->count].node, - DEV_ATTACH); + DEV_ATTACH, + ð_dev); } } } } + if (eth_dev) + eth_dev->device = &dev->device; + out_free: rte_kvargs_free(kvlist); rte_free(info); @@ -566,9 +668,13 @@ out_free: } static int -rte_pmd_ring_devuninit(const char *name) +rte_pmd_ring_remove(struct rte_vdev_device *dev) { + const char *name = rte_vdev_device_name(dev); 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); @@ -582,22 +688,34 @@ rte_pmd_ring_devuninit(const char *name) eth_dev_stop(eth_dev); - if (eth_dev->data) { - rte_free(eth_dev->data->rx_queues); - rte_free(eth_dev->data->tx_queues); - rte_free(eth_dev->data->dev_private); + 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, +static struct rte_vdev_driver pmd_ring_drv = { + .probe = rte_pmd_ring_probe, + .remove = rte_pmd_ring_remove, }; -PMD_REGISTER_DRIVER(pmd_ring_drv); +RTE_PMD_REGISTER_VDEV(net_ring, pmd_ring_drv); +RTE_PMD_REGISTER_ALIAS(net_ring, eth_ring); +RTE_PMD_REGISTER_PARAM_STRING(net_ring, + ETH_RING_NUMA_NODE_ACTION_ARG "=name:node:action(ATTACH|CREATE)");