numam-dpdk/drivers/net/nfp/nfp_ethdev_vf.c
Heinrich Kuhn 8d7a59f171 net/nfp: rename files for consistency
Rename the nfp_net.c file to nfp_common as it now contains functions
common to VF and PF functionality. Rename the header file too to be
consistent. Also remove the "net" naming from the _ctrl and _logs files
for consistency across the PMD.

Signed-off-by: Heinrich Kuhn <heinrich.kuhn@netronome.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
2021-08-17 18:26:57 +02:00

505 lines
14 KiB
C

/* SPDX-License-Identifier: BSD-3-Clause
* Copyright (c) 2014-2021 Netronome Systems, Inc.
* All rights reserved.
*
* Small portions derived from code Copyright(c) 2010-2015 Intel Corporation.
*/
/*
* vim:shiftwidth=8:noexpandtab
*
* @file dpdk/pmd/nfp_ethdev_vf.c
*
* Netronome vNIC VF DPDK Poll-Mode Driver: Main entry point
*/
#include "nfpcore/nfp_mip.h"
#include "nfpcore/nfp_rtsym.h"
#include "nfp_common.h"
#include "nfp_rxtx.h"
#include "nfp_logs.h"
#include "nfp_ctrl.h"
static void nfp_netvf_read_mac(struct nfp_net_hw *hw);
static int nfp_netvf_start(struct rte_eth_dev *dev);
static int nfp_netvf_stop(struct rte_eth_dev *dev);
static int nfp_netvf_set_link_up(struct rte_eth_dev *dev);
static int nfp_netvf_set_link_down(struct rte_eth_dev *dev);
static int nfp_netvf_close(struct rte_eth_dev *dev);
static int nfp_netvf_init(struct rte_eth_dev *eth_dev);
static int nfp_vf_pci_uninit(struct rte_eth_dev *eth_dev);
static int eth_nfp_vf_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
struct rte_pci_device *pci_dev);
static int eth_nfp_vf_pci_remove(struct rte_pci_device *pci_dev);
static void
nfp_netvf_read_mac(struct nfp_net_hw *hw)
{
uint32_t tmp;
tmp = rte_be_to_cpu_32(nn_cfg_readl(hw, NFP_NET_CFG_MACADDR));
memcpy(&hw->mac_addr[0], &tmp, 4);
tmp = rte_be_to_cpu_32(nn_cfg_readl(hw, NFP_NET_CFG_MACADDR + 4));
memcpy(&hw->mac_addr[4], &tmp, 2);
}
static int
nfp_netvf_start(struct rte_eth_dev *dev)
{
struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
uint32_t new_ctrl, update = 0;
struct nfp_net_hw *hw;
struct rte_eth_conf *dev_conf;
struct rte_eth_rxmode *rxmode;
uint32_t intr_vector;
int ret;
hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
PMD_INIT_LOG(DEBUG, "Start");
/* Disabling queues just in case... */
nfp_net_disable_queues(dev);
/* Enabling the required queues in the device */
nfp_net_enable_queues(dev);
/* check and configure queue intr-vector mapping */
if (dev->data->dev_conf.intr_conf.rxq != 0) {
if (intr_handle->type == RTE_INTR_HANDLE_UIO) {
/*
* Better not to share LSC with RX interrupts.
* Unregistering LSC interrupt handler
*/
rte_intr_callback_unregister(&pci_dev->intr_handle,
nfp_net_dev_interrupt_handler, (void *)dev);
if (dev->data->nb_rx_queues > 1) {
PMD_INIT_LOG(ERR, "PMD rx interrupt only "
"supports 1 queue with UIO");
return -EIO;
}
}
intr_vector = dev->data->nb_rx_queues;
if (rte_intr_efd_enable(intr_handle, intr_vector))
return -1;
nfp_configure_rx_interrupt(dev, intr_handle);
update = NFP_NET_CFG_UPDATE_MSIX;
}
rte_intr_enable(intr_handle);
new_ctrl = nfp_check_offloads(dev);
/* Writing configuration parameters in the device */
nfp_net_params_setup(hw);
dev_conf = &dev->data->dev_conf;
rxmode = &dev_conf->rxmode;
if (rxmode->mq_mode & ETH_MQ_RX_RSS) {
nfp_net_rss_config_default(dev);
update |= NFP_NET_CFG_UPDATE_RSS;
new_ctrl |= NFP_NET_CFG_CTRL_RSS;
}
/* Enable device */
new_ctrl |= NFP_NET_CFG_CTRL_ENABLE;
update |= NFP_NET_CFG_UPDATE_GEN | NFP_NET_CFG_UPDATE_RING;
if (hw->cap & NFP_NET_CFG_CTRL_RINGCFG)
new_ctrl |= NFP_NET_CFG_CTRL_RINGCFG;
nn_cfg_writel(hw, NFP_NET_CFG_CTRL, new_ctrl);
if (nfp_net_reconfig(hw, new_ctrl, update) < 0)
return -EIO;
/*
* Allocating rte mbufs for configured rx queues.
* This requires queues being enabled before
*/
if (nfp_net_rx_freelist_setup(dev) < 0) {
ret = -ENOMEM;
goto error;
}
hw->ctrl = new_ctrl;
return 0;
error:
/*
* An error returned by this function should mean the app
* exiting and then the system releasing all the memory
* allocated even memory coming from hugepages.
*
* The device could be enabled at this point with some queues
* ready for getting packets. This is true if the call to
* nfp_net_rx_freelist_setup() succeeds for some queues but
* fails for subsequent queues.
*
* This should make the app exiting but better if we tell the
* device first.
*/
nfp_net_disable_queues(dev);
return ret;
}
static int
nfp_netvf_stop(struct rte_eth_dev *dev)
{
struct nfp_net_txq *this_tx_q;
struct nfp_net_rxq *this_rx_q;
int i;
PMD_INIT_LOG(DEBUG, "Stop");
nfp_net_disable_queues(dev);
/* Clear queues */
for (i = 0; i < dev->data->nb_tx_queues; i++) {
this_tx_q = (struct nfp_net_txq *)dev->data->tx_queues[i];
nfp_net_reset_tx_queue(this_tx_q);
}
for (i = 0; i < dev->data->nb_rx_queues; i++) {
this_rx_q = (struct nfp_net_rxq *)dev->data->rx_queues[i];
nfp_net_reset_rx_queue(this_rx_q);
}
return 0;
}
static int
nfp_netvf_set_link_up(struct rte_eth_dev *dev __rte_unused)
{
return -ENOTSUP;
}
/* Set the link down. */
static int
nfp_netvf_set_link_down(struct rte_eth_dev *dev __rte_unused)
{
return -ENOTSUP;
}
/* Reset and stop device. The device can not be restarted. */
static int
nfp_netvf_close(struct rte_eth_dev *dev)
{
struct rte_pci_device *pci_dev;
struct nfp_net_txq *this_tx_q;
struct nfp_net_rxq *this_rx_q;
int i;
if (rte_eal_process_type() != RTE_PROC_PRIMARY)
return 0;
PMD_INIT_LOG(DEBUG, "Close");
pci_dev = RTE_ETH_DEV_TO_PCI(dev);
/*
* We assume that the DPDK application is stopping all the
* threads/queues before calling the device close function.
*/
nfp_net_disable_queues(dev);
/* Clear queues */
for (i = 0; i < dev->data->nb_tx_queues; i++) {
this_tx_q = (struct nfp_net_txq *)dev->data->tx_queues[i];
nfp_net_reset_tx_queue(this_tx_q);
}
for (i = 0; i < dev->data->nb_rx_queues; i++) {
this_rx_q = (struct nfp_net_rxq *)dev->data->rx_queues[i];
nfp_net_reset_rx_queue(this_rx_q);
}
rte_intr_disable(&pci_dev->intr_handle);
/* unregister callback func from eal lib */
rte_intr_callback_unregister(&pci_dev->intr_handle,
nfp_net_dev_interrupt_handler,
(void *)dev);
/*
* The ixgbe PMD driver disables the pcie master on the
* device. The i40e does not...
*/
return 0;
}
/* Initialise and register VF driver with DPDK Application */
static const struct eth_dev_ops nfp_netvf_eth_dev_ops = {
.dev_configure = nfp_net_configure,
.dev_start = nfp_netvf_start,
.dev_stop = nfp_netvf_stop,
.dev_set_link_up = nfp_netvf_set_link_up,
.dev_set_link_down = nfp_netvf_set_link_down,
.dev_close = nfp_netvf_close,
.promiscuous_enable = nfp_net_promisc_enable,
.promiscuous_disable = nfp_net_promisc_disable,
.link_update = nfp_net_link_update,
.stats_get = nfp_net_stats_get,
.stats_reset = nfp_net_stats_reset,
.dev_infos_get = nfp_net_infos_get,
.dev_supported_ptypes_get = nfp_net_supported_ptypes_get,
.mtu_set = nfp_net_dev_mtu_set,
.mac_addr_set = nfp_set_mac_addr,
.vlan_offload_set = nfp_net_vlan_offload_set,
.reta_update = nfp_net_reta_update,
.reta_query = nfp_net_reta_query,
.rss_hash_update = nfp_net_rss_hash_update,
.rss_hash_conf_get = nfp_net_rss_hash_conf_get,
.rx_queue_setup = nfp_net_rx_queue_setup,
.rx_queue_release = nfp_net_rx_queue_release,
.tx_queue_setup = nfp_net_tx_queue_setup,
.tx_queue_release = nfp_net_tx_queue_release,
.rx_queue_intr_enable = nfp_rx_queue_intr_enable,
.rx_queue_intr_disable = nfp_rx_queue_intr_disable,
};
static int
nfp_netvf_init(struct rte_eth_dev *eth_dev)
{
struct rte_pci_device *pci_dev;
struct nfp_net_hw *hw;
struct rte_ether_addr *tmp_ether_addr;
uint64_t tx_bar_off = 0, rx_bar_off = 0;
uint32_t start_q;
int stride = 4;
int port = 0;
int err;
PMD_INIT_FUNC_TRACE();
pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
/* NFP can not handle DMA addresses requiring more than 40 bits */
if (rte_mem_check_dma_mask(40)) {
RTE_LOG(ERR, PMD, "device %s can not be used:",
pci_dev->device.name);
RTE_LOG(ERR, PMD, "\trestricted dma mask to 40 bits!\n");
return -ENODEV;
};
hw = NFP_NET_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
eth_dev->dev_ops = &nfp_netvf_eth_dev_ops;
eth_dev->rx_queue_count = nfp_net_rx_queue_count;
eth_dev->rx_pkt_burst = &nfp_net_recv_pkts;
eth_dev->tx_pkt_burst = &nfp_net_xmit_pkts;
/* For secondary processes, the primary has done all the work */
if (rte_eal_process_type() != RTE_PROC_PRIMARY)
return 0;
rte_eth_copy_pci_info(eth_dev, pci_dev);
hw->device_id = pci_dev->id.device_id;
hw->vendor_id = pci_dev->id.vendor_id;
hw->subsystem_device_id = pci_dev->id.subsystem_device_id;
hw->subsystem_vendor_id = pci_dev->id.subsystem_vendor_id;
PMD_INIT_LOG(DEBUG, "nfp_net: device (%u:%u) %u:%u:%u:%u",
pci_dev->id.vendor_id, pci_dev->id.device_id,
pci_dev->addr.domain, pci_dev->addr.bus,
pci_dev->addr.devid, pci_dev->addr.function);
hw->ctrl_bar = (uint8_t *)pci_dev->mem_resource[0].addr;
if (hw->ctrl_bar == NULL) {
PMD_DRV_LOG(ERR,
"hw->ctrl_bar is NULL. BAR0 not configured");
return -ENODEV;
}
PMD_INIT_LOG(DEBUG, "ctrl bar: %p", hw->ctrl_bar);
hw->max_rx_queues = nn_cfg_readl(hw, NFP_NET_CFG_MAX_RXRINGS);
hw->max_tx_queues = nn_cfg_readl(hw, NFP_NET_CFG_MAX_TXRINGS);
/* Work out where in the BAR the queues start. */
switch (pci_dev->id.device_id) {
case PCI_DEVICE_ID_NFP6000_VF_NIC:
start_q = nn_cfg_readl(hw, NFP_NET_CFG_START_TXQ);
tx_bar_off = (uint64_t)start_q * NFP_QCP_QUEUE_ADDR_SZ;
start_q = nn_cfg_readl(hw, NFP_NET_CFG_START_RXQ);
rx_bar_off = (uint64_t)start_q * NFP_QCP_QUEUE_ADDR_SZ;
break;
default:
PMD_DRV_LOG(ERR, "nfp_net: no device ID matching");
err = -ENODEV;
goto dev_err_ctrl_map;
}
PMD_INIT_LOG(DEBUG, "tx_bar_off: 0x%" PRIx64 "", tx_bar_off);
PMD_INIT_LOG(DEBUG, "rx_bar_off: 0x%" PRIx64 "", rx_bar_off);
hw->tx_bar = (uint8_t *)pci_dev->mem_resource[2].addr +
tx_bar_off;
hw->rx_bar = (uint8_t *)pci_dev->mem_resource[2].addr +
rx_bar_off;
PMD_INIT_LOG(DEBUG, "ctrl_bar: %p, tx_bar: %p, rx_bar: %p",
hw->ctrl_bar, hw->tx_bar, hw->rx_bar);
nfp_net_cfg_queue_setup(hw);
/* Get some of the read-only fields from the config BAR */
hw->ver = nn_cfg_readl(hw, NFP_NET_CFG_VERSION);
hw->cap = nn_cfg_readl(hw, NFP_NET_CFG_CAP);
hw->max_mtu = nn_cfg_readl(hw, NFP_NET_CFG_MAX_MTU);
hw->mtu = RTE_ETHER_MTU;
/* VLAN insertion is incompatible with LSOv2 */
if (hw->cap & NFP_NET_CFG_CTRL_LSO2)
hw->cap &= ~NFP_NET_CFG_CTRL_TXVLAN;
if (NFD_CFG_MAJOR_VERSION_of(hw->ver) < 2)
hw->rx_offset = NFP_NET_RX_OFFSET;
else
hw->rx_offset = nn_cfg_readl(hw, NFP_NET_CFG_RX_OFFSET_ADDR);
PMD_INIT_LOG(INFO, "VER: %u.%u, Maximum supported MTU: %d",
NFD_CFG_MAJOR_VERSION_of(hw->ver),
NFD_CFG_MINOR_VERSION_of(hw->ver), hw->max_mtu);
PMD_INIT_LOG(INFO, "CAP: %#x, %s%s%s%s%s%s%s%s%s%s%s%s%s%s", hw->cap,
hw->cap & NFP_NET_CFG_CTRL_PROMISC ? "PROMISC " : "",
hw->cap & NFP_NET_CFG_CTRL_L2BC ? "L2BCFILT " : "",
hw->cap & NFP_NET_CFG_CTRL_L2MC ? "L2MCFILT " : "",
hw->cap & NFP_NET_CFG_CTRL_RXCSUM ? "RXCSUM " : "",
hw->cap & NFP_NET_CFG_CTRL_TXCSUM ? "TXCSUM " : "",
hw->cap & NFP_NET_CFG_CTRL_RXVLAN ? "RXVLAN " : "",
hw->cap & NFP_NET_CFG_CTRL_TXVLAN ? "TXVLAN " : "",
hw->cap & NFP_NET_CFG_CTRL_SCATTER ? "SCATTER " : "",
hw->cap & NFP_NET_CFG_CTRL_GATHER ? "GATHER " : "",
hw->cap & NFP_NET_CFG_CTRL_LIVE_ADDR ? "LIVE_ADDR " : "",
hw->cap & NFP_NET_CFG_CTRL_LSO ? "TSO " : "",
hw->cap & NFP_NET_CFG_CTRL_LSO2 ? "TSOv2 " : "",
hw->cap & NFP_NET_CFG_CTRL_RSS ? "RSS " : "",
hw->cap & NFP_NET_CFG_CTRL_RSS2 ? "RSSv2 " : "");
hw->ctrl = 0;
hw->stride_rx = stride;
hw->stride_tx = stride;
PMD_INIT_LOG(INFO, "max_rx_queues: %u, max_tx_queues: %u",
hw->max_rx_queues, hw->max_tx_queues);
/* Initializing spinlock for reconfigs */
rte_spinlock_init(&hw->reconfig_lock);
/* Allocating memory for mac addr */
eth_dev->data->mac_addrs = rte_zmalloc("mac_addr",
RTE_ETHER_ADDR_LEN, 0);
if (eth_dev->data->mac_addrs == NULL) {
PMD_INIT_LOG(ERR, "Failed to space for MAC address");
err = -ENOMEM;
goto dev_err_queues_map;
}
nfp_netvf_read_mac(hw);
tmp_ether_addr = (struct rte_ether_addr *)&hw->mac_addr;
if (!rte_is_valid_assigned_ether_addr(tmp_ether_addr)) {
PMD_INIT_LOG(INFO, "Using random mac address for port %d",
port);
/* Using random mac addresses for VFs */
rte_eth_random_addr(&hw->mac_addr[0]);
nfp_net_write_mac(hw, (uint8_t *)&hw->mac_addr);
}
/* Copying mac address to DPDK eth_dev struct */
rte_ether_addr_copy((struct rte_ether_addr *)hw->mac_addr,
&eth_dev->data->mac_addrs[0]);
if (!(hw->cap & NFP_NET_CFG_CTRL_LIVE_ADDR))
eth_dev->data->dev_flags |= RTE_ETH_DEV_NOLIVE_MAC_ADDR;
eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
PMD_INIT_LOG(INFO, "port %d VendorID=0x%x DeviceID=0x%x "
"mac=%02x:%02x:%02x:%02x:%02x:%02x",
eth_dev->data->port_id, pci_dev->id.vendor_id,
pci_dev->id.device_id,
hw->mac_addr[0], hw->mac_addr[1], hw->mac_addr[2],
hw->mac_addr[3], hw->mac_addr[4], hw->mac_addr[5]);
if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
/* Registering LSC interrupt handler */
rte_intr_callback_register(&pci_dev->intr_handle,
nfp_net_dev_interrupt_handler,
(void *)eth_dev);
/* Telling the firmware about the LSC interrupt entry */
nn_cfg_writeb(hw, NFP_NET_CFG_LSC, NFP_NET_IRQ_LSC_IDX);
/* Recording current stats counters values */
nfp_net_stats_reset(eth_dev);
}
return 0;
dev_err_queues_map:
nfp_cpp_area_free(hw->hwqueues_area);
dev_err_ctrl_map:
nfp_cpp_area_free(hw->ctrl_area);
return err;
}
static const struct rte_pci_id pci_id_nfp_vf_net_map[] = {
{
RTE_PCI_DEVICE(PCI_VENDOR_ID_NETRONOME,
PCI_DEVICE_ID_NFP6000_VF_NIC)
},
{
.vendor_id = 0,
},
};
static int nfp_vf_pci_uninit(struct rte_eth_dev *eth_dev)
{
/* VF cleanup, just free private port data */
return nfp_netvf_close(eth_dev);
}
static int eth_nfp_vf_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 nfp_net_adapter), nfp_netvf_init);
}
static int eth_nfp_vf_pci_remove(struct rte_pci_device *pci_dev)
{
return rte_eth_dev_pci_generic_remove(pci_dev, nfp_vf_pci_uninit);
}
static struct rte_pci_driver rte_nfp_net_vf_pmd = {
.id_table = pci_id_nfp_vf_net_map,
.drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
.probe = eth_nfp_vf_pci_probe,
.remove = eth_nfp_vf_pci_remove,
};
RTE_PMD_REGISTER_PCI(net_nfp_vf, rte_nfp_net_vf_pmd);
RTE_PMD_REGISTER_PCI_TABLE(net_nfp_vf, pci_id_nfp_vf_net_map);
RTE_PMD_REGISTER_KMOD_DEP(net_nfp_vf, "* igb_uio | uio_pci_generic | vfio");
/*
* Local variables:
* c-file-style: "Linux"
* indent-tabs-mode: t
* End:
*/