net/sfc: support flow API filters
[dpdk.git] / drivers / net / sfc / sfc_ethdev.c
index d3c2a35..5297159 100644 (file)
 #include "sfc_ev.h"
 #include "sfc_rx.h"
 #include "sfc_tx.h"
-
+#include "sfc_flow.h"
 
 static void
 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 {
        struct sfc_adapter *sa = dev->data->dev_private;
+       const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 
        sfc_log_init(sa, "entry");
 
@@ -77,8 +78,22 @@ sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
                DEV_TX_OFFLOAD_UDP_CKSUM |
                DEV_TX_OFFLOAD_TCP_CKSUM;
 
-       dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOVLANOFFL |
-                                            ETH_TXQ_FLAGS_NOXSUMSCTP;
+       dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP;
+       if (!encp->enc_hw_tx_insert_vlan_enabled)
+               dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOVLANOFFL;
+       else
+               dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_VLAN_INSERT;
+
+#if EFSYS_OPT_RX_SCALE
+       if (sa->rss_support != EFX_RX_SCALE_UNAVAILABLE) {
+               dev_info->reta_size = EFX_RSS_TBL_SIZE;
+               dev_info->hash_key_size = SFC_RSS_KEY_SIZE;
+               dev_info->flow_type_rss_offloads = SFC_RSS_OFFLOADS;
+       }
+#endif
+
+       if (sa->tso)
+               dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_TCP_TSO;
 
        dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
        dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
@@ -173,17 +188,21 @@ sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 
        sfc_log_init(sa, "entry");
 
-       if (sa->state != SFC_ADAPTER_STARTED)
-               return 0;
-
 retry:
        EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
        *(int64_t *)&old_link = rte_atomic64_read((rte_atomic64_t *)dev_link);
 
-       if (wait_to_complete) {
+       if (sa->state != SFC_ADAPTER_STARTED) {
+               sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
+               if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
+                                        *(uint64_t *)&old_link,
+                                        *(uint64_t *)&current_link))
+                       goto retry;
+       } else if (wait_to_complete) {
                efx_link_mode_t link_mode;
 
-               efx_port_poll(sa->nic, &link_mode);
+               if (efx_port_poll(sa->nic, &link_mode) != 0)
+                       link_mode = EFX_LINK_UNKNOWN;
                sfc_port_link_mode_to_info(link_mode, &current_link);
 
                if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
@@ -506,6 +525,27 @@ unlock:
        rte_spinlock_unlock(&port->mac_stats_lock);
 }
 
+static void
+sfc_stats_reset(struct rte_eth_dev *dev)
+{
+       struct sfc_adapter *sa = dev->data->dev_private;
+       struct sfc_port *port = &sa->port;
+       int rc;
+
+       if (sa->state != SFC_ADAPTER_STARTED) {
+               /*
+                * The operation cannot be done if port is not started; it
+                * will be scheduled to be done during the next port start
+                */
+               port->mac_stats_reset_pending = B_TRUE;
+               return;
+       }
+
+       rc = sfc_port_reset_mac_stats(sa);
+       if (rc != 0)
+               sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
+}
+
 static int
 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
               unsigned int xstats_count)
@@ -786,8 +826,7 @@ sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
                     uint32_t nb_mc_addr)
 {
        struct sfc_adapter *sa = dev->data->dev_private;
-       uint8_t *mc_addrs_p;
-       uint8_t *mc_addrs;
+       uint8_t *mc_addrs_p = NULL;
        int rc;
        unsigned int i;
 
@@ -797,16 +836,20 @@ sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
                return -EINVAL;
        }
 
-       mc_addrs_p = rte_calloc("mc-addrs", nb_mc_addr, EFX_MAC_ADDR_LEN, 0);
-       if (mc_addrs_p == NULL)
-               return -ENOMEM;
+       if (nb_mc_addr != 0) {
+               uint8_t *mc_addrs;
 
-       mc_addrs = mc_addrs_p;
+               mc_addrs_p = rte_calloc("mc-addrs", nb_mc_addr,
+                                       EFX_MAC_ADDR_LEN, 0);
+               if (mc_addrs_p == NULL)
+                       return -ENOMEM;
 
-       for (i = 0; i < nb_mc_addr; ++i) {
-               (void)rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
-                                EFX_MAC_ADDR_LEN);
-               mc_addrs += EFX_MAC_ADDR_LEN;
+               mc_addrs = mc_addrs_p;
+               for (i = 0; i < nb_mc_addr; ++i) {
+                       (void)rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
+                                        EFX_MAC_ADDR_LEN);
+                       mc_addrs += EFX_MAC_ADDR_LEN;
+               }
        }
 
        rc = efx_mac_multicast_list_set(sa->nic, mc_addrs_p, nb_mc_addr);
@@ -846,6 +889,30 @@ sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
        sfc_adapter_unlock(sa);
 }
 
+static void
+sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
+                     struct rte_eth_txq_info *qinfo)
+{
+       struct sfc_adapter *sa = dev->data->dev_private;
+       struct sfc_txq_info *txq_info;
+
+       sfc_adapter_lock(sa);
+
+       SFC_ASSERT(tx_queue_id < sa->txq_count);
+
+       txq_info = &sa->txq_info[tx_queue_id];
+       SFC_ASSERT(txq_info->txq != NULL);
+
+       memset(qinfo, 0, sizeof(*qinfo));
+
+       qinfo->conf.txq_flags = txq_info->txq->flags;
+       qinfo->conf.tx_free_thresh = txq_info->txq->free_thresh;
+       qinfo->conf.tx_deferred_start = txq_info->deferred_start;
+       qinfo->nb_desc = txq_info->entries;
+
+       sfc_adapter_unlock(sa);
+}
+
 static uint32_t
 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 {
@@ -912,6 +979,291 @@ sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
        return 0;
 }
 
+static int
+sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
+{
+       struct sfc_adapter *sa = dev->data->dev_private;
+       int rc;
+
+       sfc_log_init(sa, "TxQ = %u", tx_queue_id);
+
+       sfc_adapter_lock(sa);
+
+       rc = EINVAL;
+       if (sa->state != SFC_ADAPTER_STARTED)
+               goto fail_not_started;
+
+       rc = sfc_tx_qstart(sa, tx_queue_id);
+       if (rc != 0)
+               goto fail_tx_qstart;
+
+       sa->txq_info[tx_queue_id].deferred_started = B_TRUE;
+
+       sfc_adapter_unlock(sa);
+       return 0;
+
+fail_tx_qstart:
+
+fail_not_started:
+       sfc_adapter_unlock(sa);
+       SFC_ASSERT(rc > 0);
+       return -rc;
+}
+
+static int
+sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
+{
+       struct sfc_adapter *sa = dev->data->dev_private;
+
+       sfc_log_init(sa, "TxQ = %u", tx_queue_id);
+
+       sfc_adapter_lock(sa);
+
+       sfc_tx_qstop(sa, tx_queue_id);
+
+       sa->txq_info[tx_queue_id].deferred_started = B_FALSE;
+
+       sfc_adapter_unlock(sa);
+       return 0;
+}
+
+#if EFSYS_OPT_RX_SCALE
+static int
+sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
+                         struct rte_eth_rss_conf *rss_conf)
+{
+       struct sfc_adapter *sa = dev->data->dev_private;
+
+       if ((sa->rss_channels == 1) ||
+           (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE))
+               return -ENOTSUP;
+
+       sfc_adapter_lock(sa);
+
+       /*
+        * Mapping of hash configuration between RTE and EFX is not one-to-one,
+        * hence, conversion is done here to derive a correct set of ETH_RSS
+        * flags which corresponds to the active EFX configuration stored
+        * locally in 'sfc_adapter' and kept up-to-date
+        */
+       rss_conf->rss_hf = sfc_efx_to_rte_hash_type(sa->rss_hash_types);
+       rss_conf->rss_key_len = SFC_RSS_KEY_SIZE;
+       if (rss_conf->rss_key != NULL)
+               rte_memcpy(rss_conf->rss_key, sa->rss_key, SFC_RSS_KEY_SIZE);
+
+       sfc_adapter_unlock(sa);
+
+       return 0;
+}
+
+static int
+sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
+                       struct rte_eth_rss_conf *rss_conf)
+{
+       struct sfc_adapter *sa = dev->data->dev_private;
+       unsigned int efx_hash_types;
+       int rc = 0;
+
+       if ((sa->rss_channels == 1) ||
+           (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE)) {
+               sfc_err(sa, "RSS is not available");
+               return -ENOTSUP;
+       }
+
+       if ((rss_conf->rss_key != NULL) &&
+           (rss_conf->rss_key_len != sizeof(sa->rss_key))) {
+               sfc_err(sa, "RSS key size is wrong (should be %lu)",
+                       sizeof(sa->rss_key));
+               return -EINVAL;
+       }
+
+       if ((rss_conf->rss_hf & ~SFC_RSS_OFFLOADS) != 0) {
+               sfc_err(sa, "unsupported hash functions requested");
+               return -EINVAL;
+       }
+
+       sfc_adapter_lock(sa);
+
+       efx_hash_types = sfc_rte_to_efx_hash_type(rss_conf->rss_hf);
+
+       rc = efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ,
+                                  efx_hash_types, B_TRUE);
+       if (rc != 0)
+               goto fail_scale_mode_set;
+
+       if (rss_conf->rss_key != NULL) {
+               if (sa->state == SFC_ADAPTER_STARTED) {
+                       rc = efx_rx_scale_key_set(sa->nic, rss_conf->rss_key,
+                                                 sizeof(sa->rss_key));
+                       if (rc != 0)
+                               goto fail_scale_key_set;
+               }
+
+               rte_memcpy(sa->rss_key, rss_conf->rss_key, sizeof(sa->rss_key));
+       }
+
+       sa->rss_hash_types = efx_hash_types;
+
+       sfc_adapter_unlock(sa);
+
+       return 0;
+
+fail_scale_key_set:
+       if (efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ,
+                                 sa->rss_hash_types, B_TRUE) != 0)
+               sfc_err(sa, "failed to restore RSS mode");
+
+fail_scale_mode_set:
+       sfc_adapter_unlock(sa);
+       return -rc;
+}
+
+static int
+sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
+                      struct rte_eth_rss_reta_entry64 *reta_conf,
+                      uint16_t reta_size)
+{
+       struct sfc_adapter *sa = dev->data->dev_private;
+       int entry;
+
+       if ((sa->rss_channels == 1) ||
+           (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE))
+               return -ENOTSUP;
+
+       if (reta_size != EFX_RSS_TBL_SIZE)
+               return -EINVAL;
+
+       sfc_adapter_lock(sa);
+
+       for (entry = 0; entry < reta_size; entry++) {
+               int grp = entry / RTE_RETA_GROUP_SIZE;
+               int grp_idx = entry % RTE_RETA_GROUP_SIZE;
+
+               if ((reta_conf[grp].mask >> grp_idx) & 1)
+                       reta_conf[grp].reta[grp_idx] = sa->rss_tbl[entry];
+       }
+
+       sfc_adapter_unlock(sa);
+
+       return 0;
+}
+
+static int
+sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
+                       struct rte_eth_rss_reta_entry64 *reta_conf,
+                       uint16_t reta_size)
+{
+       struct sfc_adapter *sa = dev->data->dev_private;
+       unsigned int *rss_tbl_new;
+       uint16_t entry;
+       int rc;
+
+
+       if ((sa->rss_channels == 1) ||
+           (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE)) {
+               sfc_err(sa, "RSS is not available");
+               return -ENOTSUP;
+       }
+
+       if (reta_size != EFX_RSS_TBL_SIZE) {
+               sfc_err(sa, "RETA size is wrong (should be %u)",
+                       EFX_RSS_TBL_SIZE);
+               return -EINVAL;
+       }
+
+       rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(sa->rss_tbl), 0);
+       if (rss_tbl_new == NULL)
+               return -ENOMEM;
+
+       sfc_adapter_lock(sa);
+
+       rte_memcpy(rss_tbl_new, sa->rss_tbl, sizeof(sa->rss_tbl));
+
+       for (entry = 0; entry < reta_size; entry++) {
+               int grp_idx = entry % RTE_RETA_GROUP_SIZE;
+               struct rte_eth_rss_reta_entry64 *grp;
+
+               grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
+
+               if (grp->mask & (1ull << grp_idx)) {
+                       if (grp->reta[grp_idx] >= sa->rss_channels) {
+                               rc = EINVAL;
+                               goto bad_reta_entry;
+                       }
+                       rss_tbl_new[entry] = grp->reta[grp_idx];
+               }
+       }
+
+       rc = efx_rx_scale_tbl_set(sa->nic, rss_tbl_new, EFX_RSS_TBL_SIZE);
+       if (rc == 0)
+               rte_memcpy(sa->rss_tbl, rss_tbl_new, sizeof(sa->rss_tbl));
+
+bad_reta_entry:
+       sfc_adapter_unlock(sa);
+
+       rte_free(rss_tbl_new);
+
+       SFC_ASSERT(rc >= 0);
+       return -rc;
+}
+#endif
+
+static int
+sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
+                   enum rte_filter_op filter_op,
+                   void *arg)
+{
+       struct sfc_adapter *sa = dev->data->dev_private;
+       int rc = ENOTSUP;
+
+       sfc_log_init(sa, "entry");
+
+       switch (filter_type) {
+       case RTE_ETH_FILTER_NONE:
+               sfc_err(sa, "Global filters configuration not supported");
+               break;
+       case RTE_ETH_FILTER_MACVLAN:
+               sfc_err(sa, "MACVLAN filters not supported");
+               break;
+       case RTE_ETH_FILTER_ETHERTYPE:
+               sfc_err(sa, "EtherType filters not supported");
+               break;
+       case RTE_ETH_FILTER_FLEXIBLE:
+               sfc_err(sa, "Flexible filters not supported");
+               break;
+       case RTE_ETH_FILTER_SYN:
+               sfc_err(sa, "SYN filters not supported");
+               break;
+       case RTE_ETH_FILTER_NTUPLE:
+               sfc_err(sa, "NTUPLE filters not supported");
+               break;
+       case RTE_ETH_FILTER_TUNNEL:
+               sfc_err(sa, "Tunnel filters not supported");
+               break;
+       case RTE_ETH_FILTER_FDIR:
+               sfc_err(sa, "Flow Director filters not supported");
+               break;
+       case RTE_ETH_FILTER_HASH:
+               sfc_err(sa, "Hash filters not supported");
+               break;
+       case RTE_ETH_FILTER_GENERIC:
+               if (filter_op != RTE_ETH_FILTER_GET) {
+                       rc = EINVAL;
+               } else {
+                       *(const void **)arg = &sfc_flow_ops;
+                       rc = 0;
+               }
+               break;
+       default:
+               sfc_err(sa, "Unknown filter type %u", filter_type);
+               break;
+       }
+
+       sfc_log_init(sa, "exit: %d", -rc);
+       SFC_ASSERT(rc >= 0);
+       return -rc;
+}
+
 static const struct eth_dev_ops sfc_eth_dev_ops = {
        .dev_configure                  = sfc_dev_configure,
        .dev_start                      = sfc_dev_start,
@@ -925,13 +1277,17 @@ static const struct eth_dev_ops sfc_eth_dev_ops = {
        .allmulticast_disable           = sfc_dev_allmulti_disable,
        .link_update                    = sfc_dev_link_update,
        .stats_get                      = sfc_stats_get,
+       .stats_reset                    = sfc_stats_reset,
        .xstats_get                     = sfc_xstats_get,
+       .xstats_reset                   = sfc_stats_reset,
        .xstats_get_names               = sfc_xstats_get_names,
        .dev_infos_get                  = sfc_dev_infos_get,
        .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
        .mtu_set                        = sfc_dev_set_mtu,
        .rx_queue_start                 = sfc_rx_queue_start,
        .rx_queue_stop                  = sfc_rx_queue_stop,
+       .tx_queue_start                 = sfc_tx_queue_start,
+       .tx_queue_stop                  = sfc_tx_queue_stop,
        .rx_queue_setup                 = sfc_rx_queue_setup,
        .rx_queue_release               = sfc_rx_queue_release,
        .rx_queue_count                 = sfc_rx_queue_count,
@@ -941,8 +1297,16 @@ static const struct eth_dev_ops sfc_eth_dev_ops = {
        .flow_ctrl_get                  = sfc_flow_ctrl_get,
        .flow_ctrl_set                  = sfc_flow_ctrl_set,
        .mac_addr_set                   = sfc_mac_addr_set,
+#if EFSYS_OPT_RX_SCALE
+       .reta_update                    = sfc_dev_rss_reta_update,
+       .reta_query                     = sfc_dev_rss_reta_query,
+       .rss_hash_update                = sfc_dev_rss_hash_update,
+       .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
+#endif
+       .filter_ctrl                    = sfc_dev_filter_ctrl,
        .set_mc_addr_list               = sfc_set_mc_addr_list,
        .rxq_info_get                   = sfc_rx_queue_info_get,
+       .txq_info_get                   = sfc_tx_queue_info_get,
 };
 
 static int
@@ -1072,6 +1436,7 @@ static struct eth_driver sfc_efx_pmd = {
 
 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd.pci_drv);
 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
+RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio");
 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
        SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
        SFC_KVARG_MCDI_LOGGING "=" SFC_KVARG_VALUES_BOOL " "