ethdev: use constants for link state
[dpdk.git] / drivers / net / null / rte_eth_null.c
index 5895065..6adea91 100644 (file)
@@ -37,6 +37,9 @@
 #include <rte_memcpy.h>
 #include <rte_dev.h>
 #include <rte_kvargs.h>
+#include <rte_spinlock.h>
+
+#include "rte_eth_null.h"
 
 #define ETH_NULL_PACKET_SIZE_ARG       "size"
 #define ETH_NULL_PACKET_COPY_ARG       "copy"
@@ -66,13 +69,20 @@ struct null_queue {
 struct pmd_internals {
        unsigned packet_size;
        unsigned packet_copy;
-       unsigned numa_node;
 
-       unsigned nb_rx_queues;
-       unsigned nb_tx_queues;
+       struct null_queue rx_null_queues[RTE_MAX_QUEUES_PER_PORT];
+       struct null_queue tx_null_queues[RTE_MAX_QUEUES_PER_PORT];
+
+       /** Bit mask of RSS offloads, the bit offset also means flow type */
+       uint64_t flow_type_rss_offloads;
+
+       rte_spinlock_t rss_lock;
+
+       uint16_t reta_size;
+       struct rte_eth_rss_reta_entry64 reta_conf[ETH_RSS_RETA_SIZE_128 /
+                       RTE_RETA_GROUP_SIZE];
 
-       struct null_queue rx_null_queues[1];
-       struct null_queue tx_null_queues[1];
+       uint8_t rss_key[40];                /**< 40-byte hash key. */
 };
 
 
@@ -81,7 +91,7 @@ static const char *drivername = "Null PMD";
 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
@@ -178,7 +188,10 @@ eth_null_copy_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
 }
 
 static int
-eth_dev_configure(struct rte_eth_dev *dev __rte_unused) { return 0; }
+eth_dev_configure(struct rte_eth_dev *dev __rte_unused)
+{
+       return 0;
+}
 
 static int
 eth_dev_start(struct rte_eth_dev *dev)
@@ -186,7 +199,7 @@ eth_dev_start(struct rte_eth_dev *dev)
        if (dev == NULL)
                return -EINVAL;
 
-       dev->data->dev_link.link_status = 1;
+       dev->data->dev_link.link_status = ETH_LINK_UP;
        return 0;
 }
 
@@ -196,7 +209,7 @@ eth_dev_stop(struct rte_eth_dev *dev)
        if (dev == NULL)
                return;
 
-       dev->data->dev_link.link_status = 0;
+       dev->data->dev_link.link_status = ETH_LINK_DOWN;
 }
 
 static int
@@ -213,17 +226,18 @@ eth_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
        if ((dev == NULL) || (mb_pool == NULL))
                return -EINVAL;
 
-       if (rx_queue_id != 0)
+       internals = dev->data->dev_private;
+
+       if (rx_queue_id >= dev->data->nb_rx_queues)
                return -ENODEV;
 
-       internals = dev->data->dev_private;
        packet_size = internals->packet_size;
 
        internals->rx_null_queues[rx_queue_id].mb_pool = mb_pool;
        dev->data->rx_queues[rx_queue_id] =
                &internals->rx_null_queues[rx_queue_id];
        dummy_packet = rte_zmalloc_socket(NULL,
-                       packet_size, 0, internals->numa_node);
+                       packet_size, 0, dev->data->numa_node);
        if (dummy_packet == NULL)
                return -ENOMEM;
 
@@ -246,16 +260,17 @@ eth_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
        if (dev == NULL)
                return -EINVAL;
 
-       if (tx_queue_id != 0)
+       internals = dev->data->dev_private;
+
+       if (tx_queue_id >= dev->data->nb_tx_queues)
                return -ENODEV;
 
-       internals = dev->data->dev_private;
        packet_size = internals->packet_size;
 
        dev->data->tx_queues[tx_queue_id] =
                &internals->tx_null_queues[tx_queue_id];
        dummy_packet = rte_zmalloc_socket(NULL,
-                       packet_size, 0, internals->numa_node);
+                       packet_size, 0, dev->data->numa_node);
        if (dummy_packet == NULL)
                return -ENOMEM;
 
@@ -279,10 +294,12 @@ eth_dev_info(struct rte_eth_dev *dev,
        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 = RTE_DIM(internals->rx_null_queues);
+       dev_info->max_tx_queues = RTE_DIM(internals->tx_null_queues);
        dev_info->min_rx_bufsize = 0;
        dev_info->pci_dev = NULL;
+       dev_info->reta_size = internals->reta_size;
+       dev_info->flow_type_rss_offloads = internals->flow_type_rss_offloads;
 }
 
 static void
@@ -296,9 +313,9 @@ eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *igb_stats)
                return;
 
        internal = dev->data->dev_private;
-       memset(igb_stats, 0, sizeof(*igb_stats));
        num_stats = RTE_MIN((unsigned)RTE_ETHDEV_QUEUE_STAT_CNTRS,
-                                       internal->nb_rx_queues);
+                       RTE_MIN(dev->data->nb_rx_queues,
+                               RTE_DIM(internal->rx_null_queues)));
        for (i = 0; i < num_stats; i++) {
                igb_stats->q_ipackets[i] =
                        internal->rx_null_queues[i].rx_pkts.cnt;
@@ -306,7 +323,8 @@ eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *igb_stats)
        }
 
        num_stats = RTE_MIN((unsigned)RTE_ETHDEV_QUEUE_STAT_CNTRS,
-                                       internal->nb_tx_queues);
+                       RTE_MIN(dev->data->nb_tx_queues,
+                               RTE_DIM(internal->tx_null_queues)));
        for (i = 0; i < num_stats; i++) {
                igb_stats->q_opackets[i] =
                        internal->tx_null_queues[i].tx_pkts.cnt;
@@ -331,21 +349,14 @@ eth_stats_reset(struct rte_eth_dev *dev)
                return;
 
        internal = dev->data->dev_private;
-       for (i = 0; i < internal->nb_rx_queues; i++)
+       for (i = 0; i < RTE_DIM(internal->rx_null_queues); i++)
                internal->rx_null_queues[i].rx_pkts.cnt = 0;
-       for (i = 0; i < internal->nb_tx_queues; i++) {
+       for (i = 0; i < RTE_DIM(internal->tx_null_queues); i++) {
                internal->tx_null_queues[i].tx_pkts.cnt = 0;
                internal->tx_null_queues[i].err_pkts.cnt = 0;
        }
 }
 
-static struct eth_driver rte_null_pmd = {
-       .pci_drv = {
-               .name = "rte_null_pmd",
-               .drv_flags = RTE_PCI_DRV_DETACHABLE,
-       },
-};
-
 static void
 eth_queue_release(void *q)
 {
@@ -362,6 +373,91 @@ static int
 eth_link_update(struct rte_eth_dev *dev __rte_unused,
                int wait_to_complete __rte_unused) { return 0; }
 
+static int
+eth_rss_reta_update(struct rte_eth_dev *dev,
+               struct rte_eth_rss_reta_entry64 *reta_conf, uint16_t reta_size)
+{
+       int i, j;
+       struct pmd_internals *internal = dev->data->dev_private;
+
+       if (reta_size != internal->reta_size)
+               return -EINVAL;
+
+       rte_spinlock_lock(&internal->rss_lock);
+
+       /* Copy RETA table */
+       for (i = 0; i < (internal->reta_size / RTE_RETA_GROUP_SIZE); i++) {
+               internal->reta_conf[i].mask = reta_conf[i].mask;
+               for (j = 0; j < RTE_RETA_GROUP_SIZE; j++)
+                       if ((reta_conf[i].mask >> j) & 0x01)
+                               internal->reta_conf[i].reta[j] = reta_conf[i].reta[j];
+       }
+
+       rte_spinlock_unlock(&internal->rss_lock);
+
+       return 0;
+}
+
+static int
+eth_rss_reta_query(struct rte_eth_dev *dev,
+               struct rte_eth_rss_reta_entry64 *reta_conf, uint16_t reta_size)
+{
+       int i, j;
+       struct pmd_internals *internal = dev->data->dev_private;
+
+       if (reta_size != internal->reta_size)
+               return -EINVAL;
+
+       rte_spinlock_lock(&internal->rss_lock);
+
+       /* Copy RETA table */
+       for (i = 0; i < (internal->reta_size / RTE_RETA_GROUP_SIZE); i++) {
+               for (j = 0; j < RTE_RETA_GROUP_SIZE; j++)
+                       if ((reta_conf[i].mask >> j) & 0x01)
+                               reta_conf[i].reta[j] = internal->reta_conf[i].reta[j];
+       }
+
+       rte_spinlock_unlock(&internal->rss_lock);
+
+       return 0;
+}
+
+static int
+eth_rss_hash_update(struct rte_eth_dev *dev, struct rte_eth_rss_conf *rss_conf)
+{
+       struct pmd_internals *internal = dev->data->dev_private;
+
+       rte_spinlock_lock(&internal->rss_lock);
+
+       if ((rss_conf->rss_hf & internal->flow_type_rss_offloads) != 0)
+               dev->data->dev_conf.rx_adv_conf.rss_conf.rss_hf =
+                               rss_conf->rss_hf & internal->flow_type_rss_offloads;
+
+       if (rss_conf->rss_key)
+               rte_memcpy(internal->rss_key, rss_conf->rss_key, 40);
+
+       rte_spinlock_unlock(&internal->rss_lock);
+
+       return 0;
+}
+
+static int
+eth_rss_hash_conf_get(struct rte_eth_dev *dev,
+               struct rte_eth_rss_conf *rss_conf)
+{
+       struct pmd_internals *internal = dev->data->dev_private;
+
+       rte_spinlock_lock(&internal->rss_lock);
+
+       rss_conf->rss_hf = dev->data->dev_conf.rx_adv_conf.rss_conf.rss_hf;
+       if (rss_conf->rss_key)
+               rte_memcpy(rss_conf->rss_key, internal->rss_key, 40);
+
+       rte_spinlock_unlock(&internal->rss_lock);
+
+       return 0;
+}
+
 static const struct eth_dev_ops ops = {
        .dev_start = eth_dev_start,
        .dev_stop = eth_dev_stop,
@@ -374,9 +470,13 @@ static const struct eth_dev_ops ops = {
        .link_update = eth_link_update,
        .stats_get = eth_stats_get,
        .stats_reset = eth_stats_reset,
+       .reta_update = eth_rss_reta_update,
+       .reta_query = eth_rss_reta_query,
+       .rss_hash_update = eth_rss_hash_update,
+       .rss_hash_conf_get = eth_rss_hash_conf_get
 };
 
-static int
+int
 eth_dev_null_create(const char *name,
                const unsigned numa_node,
                unsigned packet_size,
@@ -385,10 +485,16 @@ eth_dev_null_create(const char *name,
        const unsigned nb_rx_queues = 1;
        const unsigned nb_tx_queues = 1;
        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;
 
+       static const uint8_t default_rss_key[40] = {
+               0x6D, 0x5A, 0x56, 0xDA, 0x25, 0x5B, 0x0E, 0xC2, 0x41, 0x67, 0x25, 0x3D,
+               0x43, 0xA3, 0x8F, 0xB0, 0xD0, 0xCA, 0x2B, 0xCB, 0xAE, 0x7B, 0x30, 0xB4,
+               0x77, 0xCB, 0x2D, 0xA3, 0x80, 0x30, 0xF2, 0x0C, 0x6A, 0x42, 0xB7, 0x3B,
+               0xBE, 0xAC, 0x01, 0xFA
+       };
+
        if (name == NULL)
                return -EINVAL;
 
@@ -402,10 +508,6 @@ eth_dev_null_create(const char *name,
        if (data == NULL)
                goto error;
 
-       pci_dev = rte_zmalloc_socket(name, sizeof(*pci_dev), 0, numa_node);
-       if (pci_dev == NULL)
-               goto error;
-
        internals = rte_zmalloc_socket(name, sizeof(*internals), 0, numa_node);
        if (internals == NULL)
                goto error;
@@ -417,20 +519,20 @@ eth_dev_null_create(const char *name,
 
        /* 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 ethdev 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 nulls are local per-process */
 
-       internals->nb_rx_queues = nb_rx_queues;
-       internals->nb_tx_queues = nb_tx_queues;
        internals->packet_size = packet_size;
        internals->packet_copy = packet_copy;
-       internals->numa_node = numa_node;
 
-       pci_dev->numa_node = numa_node;
+       internals->flow_type_rss_offloads =  ETH_RSS_PROTO_MASK;
+       internals->reta_size = RTE_DIM(internals->reta_conf) * RTE_RETA_GROUP_SIZE;
+
+       rte_memcpy(internals->rss_key, default_rss_key, 40);
 
        data->dev_private = internals;
        data->port_id = eth_dev->data->port_id;
@@ -442,8 +544,14 @@ eth_dev_null_create(const char *name,
 
        eth_dev->data = data;
        eth_dev->dev_ops = &ops;
-       eth_dev->pci_dev = pci_dev;
-       eth_dev->driver = &rte_null_pmd;
+
+       TAILQ_INIT(&eth_dev->link_intr_cbs);
+
+       eth_dev->driver = NULL;
+       data->dev_flags = RTE_ETH_DEV_DETACHABLE;
+       data->kdrv = RTE_KDRV_NONE;
+       data->drv_name = drivername;
+       data->numa_node = numa_node;
 
        /* finally assign rx and tx ops */
        if (packet_copy) {
@@ -458,7 +566,6 @@ eth_dev_null_create(const char *name,
 
 error:
        rte_free(data);
-       rte_free(pci_dev);
        rte_free(internals);
 
        return -1;
@@ -561,14 +668,13 @@ rte_pmd_null_devuninit(const char *name)
        RTE_LOG(INFO, PMD, "Closing null ethdev on numa socket %u\n",
                        rte_socket_id());
 
-       /* reserve an ethdev entry */
+       /* find the ethdev entry */
        eth_dev = rte_eth_dev_allocated(name);
        if (eth_dev == NULL)
                return -1;
 
        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);