drivers/net: do not use ethdev driver
[dpdk.git] / drivers / net / sfc / sfc_ethdev.c
index b2a27c5..7620080 100644 (file)
@@ -1,5 +1,7 @@
 /*-
- * Copyright (c) 2016 Solarflare Communications Inc.
+ *   BSD LICENSE
+ *
+ * Copyright (c) 2016-2017 Solarflare Communications Inc.
  * All rights reserved.
  *
  * This software was jointly developed between OKTET Labs (under contract
@@ -29,7 +31,9 @@
 
 #include <rte_dev.h>
 #include <rte_ethdev.h>
+#include <rte_ethdev_pci.h>
 #include <rte_pci.h>
+#include <rte_errno.h>
 
 #include "efx.h"
 
 #include "sfc_rx.h"
 #include "sfc_tx.h"
 #include "sfc_flow.h"
+#include "sfc_dp.h"
+#include "sfc_dp_rx.h"
+
+static struct sfc_dp_list sfc_dp_head =
+       TAILQ_HEAD_INITIALIZER(sfc_dp_head);
 
 static int
 sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
@@ -127,11 +136,15 @@ sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
                DEV_TX_OFFLOAD_TCP_CKSUM;
 
        dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP;
-       if (!encp->enc_hw_tx_insert_vlan_enabled)
+       if ((~sa->dp_tx->features & SFC_DP_TX_FEAT_VLAN_INSERT) ||
+           !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 (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_SEG)
+               dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
+
 #if EFSYS_OPT_RX_SCALE
        if (sa->rss_support != EFX_RX_SCALE_UNAVAILABLE) {
                dev_info->reta_size = EFX_RSS_TBL_SIZE;
@@ -162,19 +175,9 @@ sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 static const uint32_t *
 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 {
-       static const uint32_t ptypes[] = {
-               RTE_PTYPE_L2_ETHER,
-               RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
-               RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
-               RTE_PTYPE_L4_TCP,
-               RTE_PTYPE_L4_UDP,
-               RTE_PTYPE_UNKNOWN
-       };
-
-       if (dev->rx_pkt_burst == sfc_recv_pkts)
-               return ptypes;
-
-       return NULL;
+       struct sfc_adapter *sa = dev->data->dev_private;
+
+       return sa->dp_rx->supported_ptypes_get();
 }
 
 static int
@@ -190,8 +193,6 @@ sfc_dev_configure(struct rte_eth_dev *dev)
        sfc_adapter_lock(sa);
        switch (sa->state) {
        case SFC_ADAPTER_CONFIGURED:
-               sfc_close(sa);
-               SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
                /* FALLTHROUGH */
        case SFC_ADAPTER_INITIALIZED:
                rc = sfc_configure(sa);
@@ -414,7 +415,7 @@ sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
        if (rc != 0)
                goto fail_rx_qinit;
 
-       dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq;
+       dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq->dp;
 
        sfc_adapter_unlock(sa);
 
@@ -429,13 +430,15 @@ fail_rx_qinit:
 static void
 sfc_rx_queue_release(void *queue)
 {
-       struct sfc_rxq *rxq = queue;
+       struct sfc_dp_rxq *dp_rxq = queue;
+       struct sfc_rxq *rxq;
        struct sfc_adapter *sa;
        unsigned int sw_index;
 
-       if (rxq == NULL)
+       if (dp_rxq == NULL)
                return;
 
+       rxq = sfc_rxq_by_dp_rxq(dp_rxq);
        sa = rxq->evq->sa;
        sfc_adapter_lock(sa);
 
@@ -467,7 +470,7 @@ sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
        if (rc != 0)
                goto fail_tx_qinit;
 
-       dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].txq;
+       dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].txq->dp;
 
        sfc_adapter_unlock(sa);
        return 0;
@@ -481,13 +484,15 @@ fail_tx_qinit:
 static void
 sfc_tx_queue_release(void *queue)
 {
-       struct sfc_txq *txq = queue;
+       struct sfc_dp_txq *dp_txq = queue;
+       struct sfc_txq *txq;
        unsigned int sw_index;
        struct sfc_adapter *sa;
 
-       if (txq == NULL)
+       if (dp_txq == NULL)
                return;
 
+       txq = sfc_txq_by_dp_txq(dp_txq);
        sw_index = sfc_txq_sw_index(txq);
 
        SFC_ASSERT(txq->evq != NULL);
@@ -971,9 +976,9 @@ sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 static int
 sfc_rx_descriptor_done(void *queue, uint16_t offset)
 {
-       struct sfc_rxq *rxq = queue;
+       struct sfc_dp_rxq *dp_rxq = queue;
 
-       return sfc_rx_qdesc_done(rxq, offset);
+       return sfc_rx_qdesc_done(dp_rxq, offset);
 }
 
 static int
@@ -1355,6 +1360,116 @@ static const struct eth_dev_ops sfc_eth_dev_ops = {
        .fw_version_get                 = sfc_fw_version_get,
 };
 
+static int
+sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
+{
+       struct sfc_adapter *sa = dev->data->dev_private;
+       unsigned int avail_caps = 0;
+       const char *rx_name = NULL;
+       const char *tx_name = NULL;
+       int rc;
+
+       switch (sa->family) {
+       case EFX_FAMILY_HUNTINGTON:
+       case EFX_FAMILY_MEDFORD:
+               avail_caps |= SFC_DP_HW_FW_CAP_EF10;
+               break;
+       default:
+               break;
+       }
+
+       rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
+                               sfc_kvarg_string_handler, &rx_name);
+       if (rc != 0)
+               goto fail_kvarg_rx_datapath;
+
+       if (rx_name != NULL) {
+               sa->dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
+               if (sa->dp_rx == NULL) {
+                       sfc_err(sa, "Rx datapath %s not found", rx_name);
+                       rc = ENOENT;
+                       goto fail_dp_rx;
+               }
+               if (!sfc_dp_match_hw_fw_caps(&sa->dp_rx->dp, avail_caps)) {
+                       sfc_err(sa,
+                               "Insufficient Hw/FW capabilities to use Rx datapath %s",
+                               rx_name);
+                       rc = EINVAL;
+                       goto fail_dp_rx;
+               }
+       } else {
+               sa->dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
+               if (sa->dp_rx == NULL) {
+                       sfc_err(sa, "Rx datapath by caps %#x not found",
+                               avail_caps);
+                       rc = ENOENT;
+                       goto fail_dp_rx;
+               }
+       }
+
+       sfc_info(sa, "use %s Rx datapath", sa->dp_rx->dp.name);
+
+       dev->rx_pkt_burst = sa->dp_rx->pkt_burst;
+
+       rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
+                               sfc_kvarg_string_handler, &tx_name);
+       if (rc != 0)
+               goto fail_kvarg_tx_datapath;
+
+       if (tx_name != NULL) {
+               sa->dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
+               if (sa->dp_tx == NULL) {
+                       sfc_err(sa, "Tx datapath %s not found", tx_name);
+                       rc = ENOENT;
+                       goto fail_dp_tx;
+               }
+               if (!sfc_dp_match_hw_fw_caps(&sa->dp_tx->dp, avail_caps)) {
+                       sfc_err(sa,
+                               "Insufficient Hw/FW capabilities to use Tx datapath %s",
+                               tx_name);
+                       rc = EINVAL;
+                       goto fail_dp_tx;
+               }
+       } else {
+               sa->dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
+               if (sa->dp_tx == NULL) {
+                       sfc_err(sa, "Tx datapath by caps %#x not found",
+                               avail_caps);
+                       rc = ENOENT;
+                       goto fail_dp_tx;
+               }
+       }
+
+       sfc_info(sa, "use %s Tx datapath", sa->dp_tx->dp.name);
+
+       dev->tx_pkt_burst = sa->dp_tx->pkt_burst;
+
+       dev->dev_ops = &sfc_eth_dev_ops;
+
+       return 0;
+
+fail_dp_tx:
+fail_kvarg_tx_datapath:
+fail_dp_rx:
+fail_kvarg_rx_datapath:
+       return rc;
+}
+
+static void
+sfc_register_dp(void)
+{
+       /* Register once */
+       if (TAILQ_EMPTY(&sfc_dp_head)) {
+               /* Prefer EF10 datapath */
+               sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
+               sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
+
+               sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
+               sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
+               sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
+       }
+}
+
 static int
 sfc_eth_dev_init(struct rte_eth_dev *dev)
 {
@@ -1364,6 +1479,8 @@ sfc_eth_dev_init(struct rte_eth_dev *dev)
        const efx_nic_cfg_t *encp;
        const struct ether_addr *from;
 
+       sfc_register_dp();
+
        /* Required for logging */
        sa->eth_dev = dev;
 
@@ -1390,6 +1507,16 @@ sfc_eth_dev_init(struct rte_eth_dev *dev)
        sfc_adapter_lock_init(sa);
        sfc_adapter_lock(sa);
 
+       sfc_log_init(sa, "probing");
+       rc = sfc_probe(sa);
+       if (rc != 0)
+               goto fail_probe;
+
+       sfc_log_init(sa, "set device ops");
+       rc = sfc_eth_dev_set_ops(dev);
+       if (rc != 0)
+               goto fail_set_ops;
+
        sfc_log_init(sa, "attaching");
        rc = sfc_attach(sa);
        if (rc != 0)
@@ -1404,16 +1531,16 @@ sfc_eth_dev_init(struct rte_eth_dev *dev)
        from = (const struct ether_addr *)(encp->enc_mac_addr);
        ether_addr_copy(from, &dev->data->mac_addrs[0]);
 
-       dev->dev_ops = &sfc_eth_dev_ops;
-       dev->rx_pkt_burst = &sfc_recv_pkts;
-       dev->tx_pkt_burst = &sfc_xmit_pkts;
-
        sfc_adapter_unlock(sa);
 
        sfc_log_init(sa, "done");
        return 0;
 
 fail_attach:
+fail_set_ops:
+       sfc_unprobe(sa);
+
+fail_probe:
        sfc_adapter_unlock(sa);
        sfc_adapter_lock_fini(sa);
        rte_free(dev->data->mac_addrs);
@@ -1439,6 +1566,7 @@ sfc_eth_dev_uninit(struct rte_eth_dev *dev)
        sfc_adapter_lock(sa);
 
        sfc_detach(sa);
+       sfc_unprobe(sa);
 
        rte_free(dev->data->mac_addrs);
        dev->data->mac_addrs = NULL;
@@ -1469,24 +1597,33 @@ static const struct rte_pci_id pci_id_sfc_efx_map[] = {
        { .vendor_id = 0 /* sentinel */ }
 };
 
-static struct eth_driver sfc_efx_pmd = {
-       .pci_drv = {
-               .id_table = pci_id_sfc_efx_map,
-               .drv_flags =
-                       RTE_PCI_DRV_INTR_LSC |
-                       RTE_PCI_DRV_NEED_MAPPING,
-               .probe = rte_eth_dev_pci_probe,
-               .remove = rte_eth_dev_pci_remove,
-       },
-       .eth_dev_init = sfc_eth_dev_init,
-       .eth_dev_uninit = sfc_eth_dev_uninit,
-       .dev_private_size = sizeof(struct sfc_adapter),
+static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
+       struct rte_pci_device *pci_dev)
+{
+       return rte_eth_dev_pci_generic_probe(pci_dev,
+               sizeof(struct sfc_adapter), sfc_eth_dev_init);
+}
+
+static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
+{
+       return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
+}
+
+static struct rte_pci_driver sfc_efx_pmd = {
+       .id_table = pci_id_sfc_efx_map,
+       .drv_flags =
+               RTE_PCI_DRV_INTR_LSC |
+               RTE_PCI_DRV_NEED_MAPPING,
+       .probe = sfc_eth_dev_pci_probe,
+       .remove = sfc_eth_dev_pci_remove,
 };
 
-RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd.pci_drv);
+RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
 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_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
+       SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
        SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
        SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long> "
        SFC_KVARG_MCDI_LOGGING "=" SFC_KVARG_VALUES_BOOL " "