Signed-off-by: Sujith Sankar <ssujith at cisco.com> --- lib/librte_pmd_enic/enic_etherdev.c | 613 ++++++++++++++++++++++++++++++++++++ 1 file changed, 613 insertions(+) create mode 100644 lib/librte_pmd_enic/enic_etherdev.c
diff --git a/lib/librte_pmd_enic/enic_etherdev.c b/lib/librte_pmd_enic/enic_etherdev.c new file mode 100644 index 0000000..d0577aa --- /dev/null +++ b/lib/librte_pmd_enic/enic_etherdev.c @@ -0,0 +1,613 @@ +/* + * Copyright 2008-2014 Cisco Systems, Inc. All rights reserved. + * Copyright 2007 Nuova Systems, Inc. All rights reserved. + * + * Copyright (c) 2014, Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + */ +#ident "$Id$" + +#include <stdio.h> +#include <stdint.h> + +#include <rte_dev.h> +#include <rte_pci.h> +#include <rte_ethdev.h> +#include <rte_string_fns.h> + +#include "vnic_intr.h" +#include "vnic_cq.h" +#include "vnic_wq.h" +#include "vnic_rq.h" +#include "vnic_enet.h" +#include "enic.h" + +#define ENICPMD_FUNC_TRACE() \ + RTE_LOG(DEBUG, PMD, "ENICPMD trace: %s\n", __func__) + +/* + * The set of PCI devices this driver supports + */ +static struct rte_pci_id pci_id_enic_map[] = { +#define RTE_PCI_DEV_ID_DECL_ENIC(vend, dev) {RTE_PCI_DEVICE(vend, dev)}, +#ifndef PCI_VENDOR_ID_CISCO +#define PCI_VENDOR_ID_CISCO 0x1137 +#endif +#include "rte_pci_dev_ids.h" +RTE_PCI_DEV_ID_DECL_ENIC(PCI_VENDOR_ID_CISCO, PCI_DEVICE_ID_CISCO_VIC_ENET) +RTE_PCI_DEV_ID_DECL_ENIC(PCI_VENDOR_ID_CISCO, PCI_DEVICE_ID_CISCO_VIC_ENET_VF) +{.vendor_id = 0, /* Sentinal */}, +}; + +static int enicpmd_fdir_remove_perfect_filter(struct rte_eth_dev *eth_dev, + struct rte_fdir_filter *fdir_filter, + uint16_t soft_id) +{ + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + return enic_fdir_del_fltr(enic, fdir_filter); +} + +static int enicpmd_fdir_add_perfect_filter(struct rte_eth_dev *eth_dev, + struct rte_fdir_filter *fdir_filter, uint16_t soft_id, + uint8_t queue, uint8_t drop) +{ + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + return enic_fdir_add_fltr(enic, fdir_filter, (uint16_t)queue, drop); +} + +static void enicpmd_fdir_info_get(struct rte_eth_dev *eth_dev, + struct rte_eth_fdir *fdir) +{ + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + *fdir = enic->fdir.stats; +} + +static void enicpmd_dev_tx_queue_release(void *txq) +{ + ENICPMD_FUNC_TRACE(); + enic_free_wq(txq); +} + +static int enicpmd_dev_setup_intr(struct enic *enic) +{ + int ret; + int index; + + ENICPMD_FUNC_TRACE(); + + /* Are we done with the init of all the queues? */ + for (index = 0; index < enic->cq_count; index++) { + if (!enic->cq[index].ctrl) + break; + } + + if (enic->cq_count != index) + return 0; + + ret = enic_alloc_intr_resources(enic); + if (ret) { + dev_err(enic, "alloc intr failed\n"); + return ret; + } + enic_init_vnic_resources(enic); + + ret = enic_setup_finish(enic); + if (ret) + dev_err(enic, "setup could not be finished\n"); + + return ret; +} + +static int enicpmd_dev_tx_queue_setup(struct rte_eth_dev *eth_dev, + uint16_t queue_idx, + uint16_t nb_desc, + unsigned int socket_id, + const struct rte_eth_txconf *tx_conf) +{ + int ret; + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + eth_dev->data->tx_queues[queue_idx] = (void *)&enic->wq[queue_idx]; + + ret = enic_alloc_wq(enic, queue_idx, socket_id, nb_desc); + if (ret) { + dev_err(enic, "error in allocating wq\n"); + return ret; + } + + return enicpmd_dev_setup_intr(enic); +} + +static int enicpmd_dev_tx_queue_start(struct rte_eth_dev *eth_dev, + uint16_t queue_idx) +{ + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + + enic_start_wq(enic, queue_idx); + + return 0; +} + +static int enicpmd_dev_tx_queue_stop(struct rte_eth_dev *eth_dev, + uint16_t queue_idx) +{ + int ret; + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + + ret = enic_stop_wq(enic, queue_idx); + if (ret) + dev_err(enic, "error in stopping wq %d\n", queue_idx); + + return ret; +} + +static int enicpmd_dev_rx_queue_start(struct rte_eth_dev *eth_dev, + uint16_t queue_idx) +{ + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + + enic_start_rq(enic, queue_idx); + + return 0; +} + +static int enicpmd_dev_rx_queue_stop(struct rte_eth_dev *eth_dev, + uint16_t queue_idx) +{ + int ret; + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + + ret = enic_stop_rq(enic, queue_idx); + if (ret) + dev_err(enic, "error in stopping rq %d\n", queue_idx); + + return ret; +} + +static void enicpmd_dev_rx_queue_release(void *rxq) +{ + ENICPMD_FUNC_TRACE(); + enic_free_rq(rxq); +} + +static int enicpmd_dev_rx_queue_setup(struct rte_eth_dev *eth_dev, + uint16_t queue_idx, + uint16_t nb_desc, + unsigned int socket_id, + const struct rte_eth_rxconf *rx_conf, + struct rte_mempool *mp) +{ + int ret; + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + eth_dev->data->rx_queues[queue_idx] = (void *)&enic->rq[queue_idx]; + + ret = enic_alloc_rq(enic, queue_idx, socket_id, mp, nb_desc); + if (ret) { + dev_err(enic, "error in allocating rq\n"); + return ret; + } + + return enicpmd_dev_setup_intr(enic); +} + +static int enicpmd_vlan_filter_set(struct rte_eth_dev *eth_dev, + uint16_t vlan_id, int on) +{ + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + if (on) + enic_add_vlan(enic, vlan_id); + else + enic_del_vlan(enic, vlan_id); + return 0; +} + +static void enicpmd_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask) +{ + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + + if (mask & ETH_VLAN_STRIP_MASK) { + if (eth_dev->data->dev_conf.rxmode.hw_vlan_strip) + enic->ig_vlan_strip_en = 1; + else + enic->ig_vlan_strip_en = 0; + } + enic_set_rss_nic_cfg(enic); + + + if (mask & ETH_VLAN_FILTER_MASK) { + dev_warning(enic, + "Configuration of VLAN filter is not supported\n"); + } + + if (mask & ETH_VLAN_EXTEND_MASK) { + dev_warning(enic, + "Configuration of extended VLAN is not supported\n"); + } +} + +static int enicpmd_dev_configure(struct rte_eth_dev *eth_dev) +{ + int ret; + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + ret = enic_set_vnic_res(enic); + if (ret) { + dev_err(enic, "Set vNIC resource num failed, aborting\n"); + return ret; + } + + if (eth_dev->data->dev_conf.rxmode.split_hdr_size && + eth_dev->data->dev_conf.rxmode.header_split) { + /* Enable header-data-split */ + enic_set_hdr_split_size(enic, + eth_dev->data->dev_conf.rxmode.split_hdr_size); + } + + enic->hw_ip_checksum = eth_dev->data->dev_conf.rxmode.hw_ip_checksum; + return 0; +} + +/* Start the device. + * It returns 0 on success. + */ +static int enicpmd_dev_start(struct rte_eth_dev *eth_dev) +{ + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + return enic_enable(enic); +} + +/* + * Stop device: disable rx and tx functions to allow for reconfiguring. + */ +static void enicpmd_dev_stop(struct rte_eth_dev *eth_dev) +{ + struct rte_eth_link link; + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + enic_disable(enic); + memset(&link, 0, sizeof(link)); + rte_atomic64_cmpset((uint64_t *)ð_dev->data->dev_link, + *(uint64_t *)ð_dev->data->dev_link, + *(uint64_t *)&link); +} + +/* + * Stop device. + */ +static void enicpmd_dev_close(struct rte_eth_dev *eth_dev) +{ + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + enic_remove(enic); +} + +static int enicpmd_dev_link_update(struct rte_eth_dev *eth_dev, + int wait_to_complete) +{ + struct enic *enic = pmd_priv(eth_dev); + int ret; + int link_status = 0; + + ENICPMD_FUNC_TRACE(); + link_status = enic_get_link_status(enic); + ret = (link_status == enic->link_status); + enic->link_status = link_status; + eth_dev->data->dev_link.link_status = link_status; + eth_dev->data->dev_link.link_duplex = ETH_LINK_FULL_DUPLEX; + eth_dev->data->dev_link.link_speed = vnic_dev_port_speed(enic->vdev); + return ret; +} + +static void enicpmd_dev_stats_get(struct rte_eth_dev *eth_dev, + struct rte_eth_stats *stats) +{ + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + enic_dev_stats_get(enic, stats); +} + +static void enicpmd_dev_stats_reset(struct rte_eth_dev *eth_dev) +{ + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + enic_dev_stats_clear(enic); +} + +static void enicpmd_dev_info_get(struct rte_eth_dev *eth_dev, + struct rte_eth_dev_info *device_info) +{ + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + device_info->max_rx_queues = enic->rq_count; + device_info->max_tx_queues = enic->wq_count; + device_info->min_rx_bufsize = ENIC_MIN_MTU; + device_info->max_rx_pktlen = enic->config.mtu; + device_info->max_mac_addrs = 1; + device_info->rx_offload_capa = + DEV_RX_OFFLOAD_VLAN_STRIP | + DEV_RX_OFFLOAD_IPV4_CKSUM | + DEV_RX_OFFLOAD_UDP_CKSUM | + DEV_RX_OFFLOAD_TCP_CKSUM; + device_info->tx_offload_capa = + DEV_TX_OFFLOAD_VLAN_INSERT | + DEV_TX_OFFLOAD_IPV4_CKSUM | + DEV_TX_OFFLOAD_UDP_CKSUM | + DEV_TX_OFFLOAD_TCP_CKSUM; +} + +static void enicpmd_dev_promiscuous_enable(struct rte_eth_dev *eth_dev) +{ + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + enic->promisc = 1; + enic_add_packet_filter(enic); +} + +static void enicpmd_dev_promiscuous_disable(struct rte_eth_dev *eth_dev) +{ + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + enic->promisc = 0; + enic_add_packet_filter(enic); +} + +static void enicpmd_dev_allmulticast_enable(struct rte_eth_dev *eth_dev) +{ + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + enic->allmulti = 1; + enic_add_packet_filter(enic); +} + +static void enicpmd_dev_allmulticast_disable(struct rte_eth_dev *eth_dev) +{ + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + enic->allmulti = 0; + enic_add_packet_filter(enic); +} + +static void enicpmd_add_mac_addr(struct rte_eth_dev *eth_dev, + struct ether_addr *mac_addr, + uint32_t index, uint32_t pool) +{ + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + enic_set_mac_address(enic, mac_addr->addr_bytes); +} + +static void enicpmd_remove_mac_addr(struct rte_eth_dev *eth_dev, uint32_t index) +{ + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + enic_del_mac_address(enic); +} + + +static uint16_t enicpmd_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, + uint16_t nb_pkts) +{ + unsigned int index; + unsigned int frags; + unsigned int pkt_len; + unsigned int seg_len; + unsigned int inc_len; + unsigned int nb_segs; + struct rte_mbuf *tx_pkt; + struct vnic_wq *wq = (struct vnic_wq *)tx_queue; + struct enic *enic = vnic_dev_priv(wq->vdev); + unsigned char *buf; + unsigned short vlan_id; + unsigned short ol_flags; + + for (index = 0; index < nb_pkts; index++) { + tx_pkt = *tx_pkts++; + inc_len = 0; + nb_segs = tx_pkt->nb_segs; + if (nb_segs > vnic_wq_desc_avail(wq)) { + /* wq cleanup and try again */ + if (!enic_cleanup_wq(enic, wq) || + (nb_segs > vnic_wq_desc_avail(wq))) + return index; + } + pkt_len = tx_pkt->pkt_len; + vlan_id = tx_pkt->vlan_tci; + ol_flags = tx_pkt->ol_flags; + for (frags = 0; inc_len < pkt_len; frags++) { + if (!tx_pkt) + break; + seg_len = tx_pkt->data_len; + inc_len += seg_len; + if (enic_send_pkt(enic, wq, tx_pkt, + (unsigned short)seg_len, !frags, + (pkt_len == inc_len), ol_flags, vlan_id)) { + break; + } + tx_pkt = tx_pkt->next; + } + } + + enic_cleanup_wq(enic, wq); + return index; +} + +static uint16_t enicpmd_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, + uint16_t nb_pkts) +{ + struct vnic_rq *rq = (struct vnic_rq *)rx_queue; + unsigned int work_done; + + if (enic_poll(rq, rx_pkts, (unsigned int)nb_pkts, &work_done)) + dev_err(enic, "error in enicpmd poll\n"); + + return work_done; +} + +static struct eth_dev_ops enicpmd_eth_dev_ops = { + .dev_configure = enicpmd_dev_configure, + .dev_start = enicpmd_dev_start, + .dev_stop = enicpmd_dev_stop, + .dev_set_link_up = NULL, + .dev_set_link_down = NULL, + .dev_close = enicpmd_dev_close, + .promiscuous_enable = enicpmd_dev_promiscuous_enable, + .promiscuous_disable = enicpmd_dev_promiscuous_disable, + .allmulticast_enable = enicpmd_dev_allmulticast_enable, + .allmulticast_disable = enicpmd_dev_allmulticast_disable, + .link_update = enicpmd_dev_link_update, + .stats_get = enicpmd_dev_stats_get, + .stats_reset = enicpmd_dev_stats_reset, + .queue_stats_mapping_set = NULL, + .dev_infos_get = enicpmd_dev_info_get, + .mtu_set = NULL, + .vlan_filter_set = enicpmd_vlan_filter_set, + .vlan_tpid_set = NULL, + .vlan_offload_set = enicpmd_vlan_offload_set, + .vlan_strip_queue_set = NULL, + .rx_queue_start = enicpmd_dev_rx_queue_start, + .rx_queue_stop = enicpmd_dev_rx_queue_stop, + .tx_queue_start = enicpmd_dev_tx_queue_start, + .tx_queue_stop = enicpmd_dev_tx_queue_stop, + .rx_queue_setup = enicpmd_dev_rx_queue_setup, + .rx_queue_release = enicpmd_dev_rx_queue_release, + .rx_queue_count = NULL, + .rx_descriptor_done = NULL, + .tx_queue_setup = enicpmd_dev_tx_queue_setup, + .tx_queue_release = enicpmd_dev_tx_queue_release, + .dev_led_on = NULL, + .dev_led_off = NULL, + .flow_ctrl_get = NULL, + .flow_ctrl_set = NULL, + .priority_flow_ctrl_set = NULL, + .mac_addr_add = enicpmd_add_mac_addr, + .mac_addr_remove = enicpmd_remove_mac_addr, + .fdir_add_signature_filter = NULL, + .fdir_update_signature_filter = NULL, + .fdir_remove_signature_filter = NULL, + .fdir_infos_get = enicpmd_fdir_info_get, + .fdir_add_perfect_filter = enicpmd_fdir_add_perfect_filter, + .fdir_update_perfect_filter = enicpmd_fdir_add_perfect_filter, + .fdir_remove_perfect_filter = enicpmd_fdir_remove_perfect_filter, + .fdir_set_masks = NULL, +}; + +struct enic *enicpmd_list_head = NULL; +/* Initialize the driver + * It returns 0 on success. + */ +static int eth_enicpmd_dev_init( + __attribute__((unused))struct eth_driver *eth_drv, + struct rte_eth_dev *eth_dev) +{ + struct rte_pci_device *pdev; + struct rte_pci_addr *addr; + struct enic *enic = pmd_priv(eth_dev); + + ENICPMD_FUNC_TRACE(); + + enic->rte_dev = eth_dev; + eth_dev->dev_ops = &enicpmd_eth_dev_ops; + eth_dev->rx_pkt_burst = &enicpmd_recv_pkts; + eth_dev->tx_pkt_burst = &enicpmd_xmit_pkts; + + pdev = eth_dev->pci_dev; + enic->pdev = pdev; + addr = &pdev->addr; + + snprintf(enic->bdf_name, ENICPMD_BDF_LENGTH, "%04x:%02x:%02x.%x", + addr->domain, addr->bus, addr->devid, addr->function); + + return enic_probe(enic); +} + +static struct eth_driver rte_enic_pmd = { + { + .name = "rte_enic_pmd", + .id_table = pci_id_enic_map, + .drv_flags = RTE_PCI_DRV_NEED_MAPPING, + }, + .eth_dev_init = eth_enicpmd_dev_init, + .dev_private_size = sizeof(struct enic), +}; + +/* Driver initialization routine. + * Invoked once at EAL init time. + * Register as the [Poll Mode] Driver of Cisco ENIC device. + */ +int rte_enic_pmd_init(const char *name __rte_unused, + const char *params __rte_unused) +{ + ENICPMD_FUNC_TRACE(); + + rte_eth_driver_register(&rte_enic_pmd); + return 0; +} + +static struct rte_driver rte_enic_driver = { + .type = PMD_PDEV, + .init = rte_enic_pmd_init, +}; + +PMD_REGISTER_DRIVER(rte_enic_driver); + -- 1.9.1