diff options
author | 2017-05-16 14:51:32 +0200 | |
---|---|---|
committer | 2017-05-16 16:20:45 +0200 | |
commit | 7595afa4d30097c1177b69257118d8ad89a539be (patch) | |
tree | 4bfeadc905c977e45e54a90c42330553b8942e4e /drivers/net/ena/ena_ethdev.c | |
parent | ce3d555e43e3795b5d9507fcfc76b7a0a92fd0d6 (diff) |
Imported Upstream version 17.05
Change-Id: Id1e419c5a214e4a18739663b91f0f9a549f1fdc6
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Diffstat (limited to 'drivers/net/ena/ena_ethdev.c')
-rw-r--r-- | drivers/net/ena/ena_ethdev.c | 162 |
1 files changed, 132 insertions, 30 deletions
diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c index c1fd7bb3..64fee05d 100644 --- a/drivers/net/ena/ena_ethdev.c +++ b/drivers/net/ena/ena_ethdev.c @@ -33,12 +33,14 @@ #include <rte_ether.h> #include <rte_ethdev.h> +#include <rte_ethdev_pci.h> #include <rte_tcp.h> #include <rte_atomic.h> #include <rte_dev.h> #include <rte_errno.h> #include <rte_version.h> #include <rte_eal_memconfig.h> +#include <rte_net.h> #include "ena_ethdev.h" #include "ena_logs.h" @@ -168,7 +170,15 @@ static const struct ena_stats ena_stats_ena_com_strings[] = { #define PCI_DEVICE_ID_ENA_VF 0xEC20 #define PCI_DEVICE_ID_ENA_LLQ_VF 0xEC21 -static struct rte_pci_id pci_id_ena_map[] = { +#define ENA_TX_OFFLOAD_MASK (\ + PKT_TX_L4_MASK | \ + PKT_TX_IP_CKSUM | \ + PKT_TX_TCP_SEG) + +#define ENA_TX_OFFLOAD_NOTSUP_MASK \ + (PKT_TX_OFFLOAD_MASK ^ ENA_TX_OFFLOAD_MASK) + +static const struct rte_pci_id pci_id_ena_map[] = { { RTE_PCI_DEVICE(PCI_VENDOR_ID_AMAZON, PCI_DEVICE_ID_ENA_VF) }, { RTE_PCI_DEVICE(PCI_VENDOR_ID_AMAZON, PCI_DEVICE_ID_ENA_LLQ_VF) }, { .device_id = 0 }, @@ -179,6 +189,8 @@ static int ena_device_init(struct ena_com_dev *ena_dev, static int ena_dev_configure(struct rte_eth_dev *dev); static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts); +static uint16_t eth_ena_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, + uint16_t nb_pkts); static int ena_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx, uint16_t nb_desc, unsigned int socket_id, const struct rte_eth_txconf *tx_conf); @@ -216,7 +228,7 @@ static int ena_rss_reta_query(struct rte_eth_dev *dev, uint16_t reta_size); static int ena_get_sset_count(struct rte_eth_dev *dev, int sset); -static struct eth_dev_ops ena_dev_ops = { +static const struct eth_dev_ops ena_dev_ops = { .dev_configure = ena_dev_configure, .dev_infos_get = ena_infos_get, .rx_queue_setup = ena_rx_queue_setup, @@ -669,7 +681,7 @@ static void ena_rx_queue_release_bufs(struct ena_ring *ring) ring->rx_buffer_info[ring->next_to_clean & ring_mask]; if (m) - __rte_mbuf_raw_free(m); + rte_mbuf_raw_free(m); ring->next_to_clean++; } @@ -730,7 +742,7 @@ static int ena_queue_restart_all(struct rte_eth_dev *dev, if (rc) { PMD_INIT_LOG(ERR, - "failed to restart queue %d type(%d)\n", + "failed to restart queue %d type(%d)", i, ring_type); return -1; } @@ -756,7 +768,7 @@ static int ena_check_valid_conf(struct ena_adapter *adapter) uint32_t max_frame_len = ena_get_mtu_conf(adapter); if (max_frame_len > adapter->max_mtu) { - PMD_INIT_LOG(ERR, "Unsupported MTU of %d\n", max_frame_len); + PMD_INIT_LOG(ERR, "Unsupported MTU of %d", max_frame_len); return -1; } @@ -783,7 +795,7 @@ ena_calc_queue_size(struct ena_com_dev *ena_dev, queue_size = rte_align32pow2(queue_size >> 1); if (queue_size == 0) { - PMD_INIT_LOG(ERR, "Invalid queue size\n"); + PMD_INIT_LOG(ERR, "Invalid queue size"); return -EFAULT; } @@ -908,7 +920,7 @@ static int ena_start(struct rte_eth_dev *dev) static int ena_queue_restart(struct ena_ring *ring) { - int rc; + int rc, bufs_num; ena_assert_msg(ring->configured == 1, "Trying to restart unconfigured queue\n"); @@ -919,9 +931,10 @@ static int ena_queue_restart(struct ena_ring *ring) if (ring->type == ENA_RING_TYPE_TX) return 0; - rc = ena_populate_rx_queue(ring, ring->ring_size); - if ((unsigned int)rc != ring->ring_size) { - PMD_INIT_LOG(ERR, "Failed to populate rx ring !\n"); + bufs_num = ring->ring_size - 1; + rc = ena_populate_rx_queue(ring, bufs_num); + if (rc != bufs_num) { + PMD_INIT_LOG(ERR, "Failed to populate rx ring !"); return (-1); } @@ -1132,7 +1145,7 @@ static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count) return 0; in_use = rxq->next_to_use - rxq->next_to_clean; - ena_assert_msg(((in_use + count) <= ring_size), "bad ring state"); + ena_assert_msg(((in_use + count) < ring_size), "bad ring state"); count = RTE_MIN(count, (uint16_t)(ring_size - (next_to_use & ring_mask))); @@ -1160,6 +1173,8 @@ static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count) rc = ena_com_add_single_rx_desc(rxq->ena_com_io_sq, &ebuf, next_to_use_masked); if (unlikely(rc)) { + rte_mempool_put_bulk(rxq->mb_pool, (void **)(&mbuf), + count - i); RTE_LOG(WARNING, PMD, "failed adding rx desc\n"); break; } @@ -1267,16 +1282,17 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev) eth_dev->dev_ops = &ena_dev_ops; eth_dev->rx_pkt_burst = ð_ena_recv_pkts; eth_dev->tx_pkt_burst = ð_ena_xmit_pkts; + eth_dev->tx_pkt_prepare = ð_ena_prep_pkts; adapter->rte_eth_dev_data = eth_dev->data; adapter->rte_dev = eth_dev; if (rte_eal_process_type() != RTE_PROC_PRIMARY) return 0; - pci_dev = eth_dev->pci_dev; + pci_dev = RTE_DEV_TO_PCI(eth_dev->device); adapter->pdev = pci_dev; - PMD_INIT_LOG(INFO, "Initializing %x:%x:%x.%d\n", + PMD_INIT_LOG(INFO, "Initializing %x:%x:%x.%d", pci_dev->addr.domain, pci_dev->addr.bus, pci_dev->addr.devid, @@ -1293,7 +1309,7 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev) else if (adapter->regs) ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST; else - PMD_INIT_LOG(CRIT, "Failed to access registers BAR(%d)\n", + PMD_INIT_LOG(CRIT, "Failed to access registers BAR(%d)", ENA_REGS_BAR); ena_dev->reg_bar = adapter->regs; @@ -1307,7 +1323,7 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev) /* device specific initialization routine */ rc = ena_device_init(ena_dev, &get_feat_ctx); if (rc) { - PMD_INIT_LOG(CRIT, "Failed to init ENA device\n"); + PMD_INIT_LOG(CRIT, "Failed to init ENA device"); return -1; } @@ -1315,7 +1331,7 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev) if (get_feat_ctx.max_queues.max_llq_num == 0) { PMD_INIT_LOG(ERR, "Trying to use LLQ but llq_num is 0.\n" - "Fall back into regular queues.\n"); + "Fall back into regular queues."); ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST; adapter->num_queues = @@ -1343,6 +1359,10 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev) /* Set max MTU for this device */ adapter->max_mtu = get_feat_ctx.dev_attr.max_mtu; + /* set device support for TSO */ + adapter->tso4_supported = get_feat_ctx.offload.tx & + ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV4_MASK; + /* Copy MAC address and point DPDK to it */ eth_dev->data->mac_addrs = (struct ether_addr *)adapter->mac_addr; ether_addr_copy((struct ether_addr *)get_feat_ctx.dev_attr.mac_addr, @@ -1369,7 +1389,7 @@ static int ena_dev_configure(struct rte_eth_dev *dev) if (!(adapter->state == ENA_ADAPTER_STATE_INIT || adapter->state == ENA_ADAPTER_STATE_STOPPED)) { - PMD_INIT_LOG(ERR, "Illegal adapter state: %d\n", + PMD_INIT_LOG(ERR, "Illegal adapter state: %d", adapter->state); return -1; } @@ -1431,6 +1451,8 @@ static void ena_infos_get(struct rte_eth_dev *dev, ena_dev = &adapter->ena_dev; ena_assert_msg(ena_dev != NULL, "Uninitialized device"); + dev_info->pci_dev = RTE_DEV_TO_PCI(dev->device); + dev_info->speed_capa = ETH_LINK_SPEED_1G | ETH_LINK_SPEED_2_5G | @@ -1459,7 +1481,7 @@ static void ena_infos_get(struct rte_eth_dev *dev, DEV_TX_OFFLOAD_UDP_CKSUM | DEV_TX_OFFLOAD_TCP_CKSUM; - if (feat.offload.tx & + if (feat.offload.rx_supported & ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV4_CSUM_MASK) rx_feat |= DEV_RX_OFFLOAD_IPV4_CKSUM | DEV_RX_OFFLOAD_UDP_CKSUM | @@ -1556,15 +1578,86 @@ static uint16_t eth_ena_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, recv_idx++; } + rx_ring->next_to_clean = next_to_clean; + + desc_in_use = desc_in_use - completed + 1; /* Burst refill to save doorbells, memory barriers, const interval */ if (ring_size - desc_in_use > ENA_RING_DESCS_RATIO(ring_size)) ena_populate_rx_queue(rx_ring, ring_size - desc_in_use); - rx_ring->next_to_clean = next_to_clean; - return recv_idx; } +static uint16_t +eth_ena_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, + uint16_t nb_pkts) +{ + int32_t ret; + uint32_t i; + struct rte_mbuf *m; + struct ena_ring *tx_ring = (struct ena_ring *)(tx_queue); + struct ipv4_hdr *ip_hdr; + uint64_t ol_flags; + uint16_t frag_field; + + for (i = 0; i != nb_pkts; i++) { + m = tx_pkts[i]; + ol_flags = m->ol_flags; + + if (!(ol_flags & PKT_TX_IPV4)) + continue; + + /* If there was not L2 header length specified, assume it is + * length of the ethernet header. + */ + if (unlikely(m->l2_len == 0)) + m->l2_len = sizeof(struct ether_hdr); + + ip_hdr = rte_pktmbuf_mtod_offset(m, struct ipv4_hdr *, + m->l2_len); + frag_field = rte_be_to_cpu_16(ip_hdr->fragment_offset); + + if ((frag_field & IPV4_HDR_DF_FLAG) != 0) { + m->packet_type |= RTE_PTYPE_L4_NONFRAG; + + /* If IPv4 header has DF flag enabled and TSO support is + * disabled, partial chcecksum should not be calculated. + */ + if (!tx_ring->adapter->tso4_supported) + continue; + } + + if ((ol_flags & ENA_TX_OFFLOAD_NOTSUP_MASK) != 0 || + (ol_flags & PKT_TX_L4_MASK) == + PKT_TX_SCTP_CKSUM) { + rte_errno = -ENOTSUP; + return i; + } + +#ifdef RTE_LIBRTE_ETHDEV_DEBUG + ret = rte_validate_tx_offload(m); + if (ret != 0) { + rte_errno = ret; + return i; + } +#endif + + /* In case we are supposed to TSO and have DF not set (DF=0) + * hardware must be provided with partial checksum, otherwise + * it will take care of necessary calculations. + */ + + ret = rte_net_intel_cksum_flags_prepare(m, + ol_flags & ~PKT_TX_TCP_SEG); + if (ret != 0) { + rte_errno = ret; + return i; + } + } + + return i; +} + static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts) { @@ -1698,16 +1791,25 @@ static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, return sent_idx; } -static struct eth_driver rte_ena_pmd = { - .pci_drv = { - .id_table = pci_id_ena_map, - .drv_flags = RTE_PCI_DRV_NEED_MAPPING, - .probe = rte_eth_dev_pci_probe, - .remove = rte_eth_dev_pci_remove, - }, - .eth_dev_init = eth_ena_dev_init, - .dev_private_size = sizeof(struct ena_adapter), +static int eth_ena_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 ena_adapter), eth_ena_dev_init); +} + +static int eth_ena_pci_remove(struct rte_pci_device *pci_dev) +{ + return rte_eth_dev_pci_generic_remove(pci_dev, NULL); +} + +static struct rte_pci_driver rte_ena_pmd = { + .id_table = pci_id_ena_map, + .drv_flags = RTE_PCI_DRV_NEED_MAPPING, + .probe = eth_ena_pci_probe, + .remove = eth_ena_pci_remove, }; -RTE_PMD_REGISTER_PCI(net_ena, rte_ena_pmd.pci_drv); +RTE_PMD_REGISTER_PCI(net_ena, rte_ena_pmd); RTE_PMD_REGISTER_PCI_TABLE(net_ena, pci_id_ena_map); +RTE_PMD_REGISTER_KMOD_DEP(net_ena, "* igb_uio | uio_pci_generic | vfio"); |