X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fmlx5%2Fmlx5_ethdev.c;h=cefb45064eeae56765c913e721151475b4ee2eda;hb=4ffab7b9e199d6253e0b7fdcf4bef137930d0914;hp=d1a70fca3618899ec2d7d9157e3ee6e791da827e;hpb=0333b2f584d95577681ea88e4238be6cb4369569;p=dpdk.git diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c index d1a70fca36..cefb45064e 100644 --- a/drivers/net/mlx5/mlx5_ethdev.c +++ b/drivers/net/mlx5/mlx5_ethdev.c @@ -4,25 +4,11 @@ */ #include -#include -#include #include -#include -#include #include +#include #include #include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include #include #include @@ -33,212 +19,12 @@ #include #include #include +#include -#include "mlx5.h" -#include "mlx5_glue.h" -#include "mlx5_rxtx.h" -#include "mlx5_utils.h" - -/* Supported speed values found in /usr/include/linux/ethtool.h */ -#ifndef HAVE_SUPPORTED_40000baseKR4_Full -#define SUPPORTED_40000baseKR4_Full (1 << 23) -#endif -#ifndef HAVE_SUPPORTED_40000baseCR4_Full -#define SUPPORTED_40000baseCR4_Full (1 << 24) -#endif -#ifndef HAVE_SUPPORTED_40000baseSR4_Full -#define SUPPORTED_40000baseSR4_Full (1 << 25) -#endif -#ifndef HAVE_SUPPORTED_40000baseLR4_Full -#define SUPPORTED_40000baseLR4_Full (1 << 26) -#endif -#ifndef HAVE_SUPPORTED_56000baseKR4_Full -#define SUPPORTED_56000baseKR4_Full (1 << 27) -#endif -#ifndef HAVE_SUPPORTED_56000baseCR4_Full -#define SUPPORTED_56000baseCR4_Full (1 << 28) -#endif -#ifndef HAVE_SUPPORTED_56000baseSR4_Full -#define SUPPORTED_56000baseSR4_Full (1 << 29) -#endif -#ifndef HAVE_SUPPORTED_56000baseLR4_Full -#define SUPPORTED_56000baseLR4_Full (1 << 30) -#endif - -/* Add defines in case the running kernel is not the same as user headers. */ -#ifndef ETHTOOL_GLINKSETTINGS -struct ethtool_link_settings { - uint32_t cmd; - uint32_t speed; - uint8_t duplex; - uint8_t port; - uint8_t phy_address; - uint8_t autoneg; - uint8_t mdio_support; - uint8_t eth_to_mdix; - uint8_t eth_tp_mdix_ctrl; - int8_t link_mode_masks_nwords; - uint32_t reserved[8]; - uint32_t link_mode_masks[]; -}; - -#define ETHTOOL_GLINKSETTINGS 0x0000004c -#define ETHTOOL_LINK_MODE_1000baseT_Full_BIT 5 -#define ETHTOOL_LINK_MODE_Autoneg_BIT 6 -#define ETHTOOL_LINK_MODE_1000baseKX_Full_BIT 17 -#define ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT 18 -#define ETHTOOL_LINK_MODE_10000baseKR_Full_BIT 19 -#define ETHTOOL_LINK_MODE_10000baseR_FEC_BIT 20 -#define ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT 21 -#define ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT 22 -#define ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT 23 -#define ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT 24 -#define ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT 25 -#define ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT 26 -#define ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT 27 -#define ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT 28 -#define ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT 29 -#define ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT 30 -#endif -#ifndef HAVE_ETHTOOL_LINK_MODE_25G -#define ETHTOOL_LINK_MODE_25000baseCR_Full_BIT 31 -#define ETHTOOL_LINK_MODE_25000baseKR_Full_BIT 32 -#define ETHTOOL_LINK_MODE_25000baseSR_Full_BIT 33 -#endif -#ifndef HAVE_ETHTOOL_LINK_MODE_50G -#define ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT 34 -#define ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT 35 -#endif -#ifndef HAVE_ETHTOOL_LINK_MODE_100G -#define ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT 36 -#define ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT 37 -#define ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT 38 -#define ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT 39 -#endif - -/** - * Get master interface name from private structure. - * - * @param[in] dev - * Pointer to Ethernet device. - * @param[out] ifname - * Interface name output buffer. - * - * @return - * 0 on success, a negative errno value otherwise and rte_errno is set. - */ -int -mlx5_get_master_ifname(const char *ibdev_path, char (*ifname)[IF_NAMESIZE]) -{ - DIR *dir; - struct dirent *dent; - unsigned int dev_type = 0; - unsigned int dev_port_prev = ~0u; - char match[IF_NAMESIZE] = ""; - - assert(ibdev_path); - { - MKSTR(path, "%s/device/net", ibdev_path); - - dir = opendir(path); - if (dir == NULL) { - rte_errno = errno; - return -rte_errno; - } - } - while ((dent = readdir(dir)) != NULL) { - char *name = dent->d_name; - FILE *file; - unsigned int dev_port; - int r; - - if ((name[0] == '.') && - ((name[1] == '\0') || - ((name[1] == '.') && (name[2] == '\0')))) - continue; - - MKSTR(path, "%s/device/net/%s/%s", - ibdev_path, name, - (dev_type ? "dev_id" : "dev_port")); - - file = fopen(path, "rb"); - if (file == NULL) { - if (errno != ENOENT) - continue; - /* - * Switch to dev_id when dev_port does not exist as - * is the case with Linux kernel versions < 3.15. - */ -try_dev_id: - match[0] = '\0'; - if (dev_type) - break; - dev_type = 1; - dev_port_prev = ~0u; - rewinddir(dir); - continue; - } - r = fscanf(file, (dev_type ? "%x" : "%u"), &dev_port); - fclose(file); - if (r != 1) - continue; - /* - * Switch to dev_id when dev_port returns the same value for - * all ports. May happen when using a MOFED release older than - * 3.0 with a Linux kernel >= 3.15. - */ - if (dev_port == dev_port_prev) - goto try_dev_id; - dev_port_prev = dev_port; - if (dev_port == 0) - strlcpy(match, name, sizeof(match)); - } - closedir(dir); - if (match[0] == '\0') { - rte_errno = ENOENT; - return -rte_errno; - } - strncpy(*ifname, match, sizeof(*ifname)); - return 0; -} - -/** - * Get interface name from private structure. - * - * This is a port representor-aware version of mlx5_get_master_ifname(). - * - * @param[in] dev - * Pointer to Ethernet device. - * @param[out] ifname - * Interface name output buffer. - * - * @return - * 0 on success, a negative errno value otherwise and rte_errno is set. - */ -int -mlx5_get_ifname(const struct rte_eth_dev *dev, char (*ifname)[IF_NAMESIZE]) -{ - struct mlx5_priv *priv = dev->data->dev_private; - unsigned int ifindex; +#include - assert(priv); - assert(priv->sh); - ifindex = priv->nl_socket_rdma >= 0 ? - mlx5_nl_ifindex(priv->nl_socket_rdma, - priv->sh->ibdev_name, - priv->ibv_port) : 0; - if (!ifindex) { - if (!priv->representor) - return mlx5_get_master_ifname(priv->sh->ibdev_path, - ifname); - rte_errno = ENXIO; - return -rte_errno; - } - if (if_indextoname(ifindex, &(*ifname)[0])) - return 0; - rte_errno = errno; - return -rte_errno; -} +#include "mlx5_rxtx.h" +#include "mlx5_autoconf.h" /** * Get the interface index from device name. @@ -252,123 +38,17 @@ mlx5_get_ifname(const struct rte_eth_dev *dev, char (*ifname)[IF_NAMESIZE]) unsigned int mlx5_ifindex(const struct rte_eth_dev *dev) { - char ifname[IF_NAMESIZE]; + struct mlx5_priv *priv = dev->data->dev_private; unsigned int ifindex; - if (mlx5_get_ifname(dev, &ifname)) - return 0; - ifindex = if_nametoindex(ifname); + MLX5_ASSERT(priv); + MLX5_ASSERT(priv->if_index); + ifindex = priv->if_index; if (!ifindex) - rte_errno = errno; + rte_errno = ENXIO; return ifindex; } -/** - * Perform ifreq ioctl() on associated Ethernet device. - * - * @param[in] dev - * Pointer to Ethernet device. - * @param req - * Request number to pass to ioctl(). - * @param[out] ifr - * Interface request structure output buffer. - * - * @return - * 0 on success, a negative errno value otherwise and rte_errno is set. - */ -int -mlx5_ifreq(const struct rte_eth_dev *dev, int req, struct ifreq *ifr) -{ - int sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP); - int ret = 0; - - if (sock == -1) { - rte_errno = errno; - return -rte_errno; - } - ret = mlx5_get_ifname(dev, &ifr->ifr_name); - if (ret) - goto error; - ret = ioctl(sock, req, ifr); - if (ret == -1) { - rte_errno = errno; - goto error; - } - close(sock); - return 0; -error: - close(sock); - return -rte_errno; -} - -/** - * Get device MTU. - * - * @param dev - * Pointer to Ethernet device. - * @param[out] mtu - * MTU value output buffer. - * - * @return - * 0 on success, a negative errno value otherwise and rte_errno is set. - */ -int -mlx5_get_mtu(struct rte_eth_dev *dev, uint16_t *mtu) -{ - struct ifreq request; - int ret = mlx5_ifreq(dev, SIOCGIFMTU, &request); - - if (ret) - return ret; - *mtu = request.ifr_mtu; - return 0; -} - -/** - * Set device MTU. - * - * @param dev - * Pointer to Ethernet device. - * @param mtu - * MTU value to set. - * - * @return - * 0 on success, a negative errno value otherwise and rte_errno is set. - */ -static int -mlx5_set_mtu(struct rte_eth_dev *dev, uint16_t mtu) -{ - struct ifreq request = { .ifr_mtu = mtu, }; - - return mlx5_ifreq(dev, SIOCSIFMTU, &request); -} - -/** - * Set device flags. - * - * @param dev - * Pointer to Ethernet device. - * @param keep - * Bitmask for flags that must remain untouched. - * @param flags - * Bitmask for flags to modify. - * - * @return - * 0 on success, a negative errno value otherwise and rte_errno is set. - */ -int -mlx5_set_flags(struct rte_eth_dev *dev, unsigned int keep, unsigned int flags) -{ - struct ifreq request; - int ret = mlx5_ifreq(dev, SIOCGIFFLAGS, &request); - - if (ret) - return ret; - request.ifr_flags &= keep; - request.ifr_flags |= flags & ~keep; - return mlx5_ifreq(dev, SIOCSIFFLAGS, &request); -} - /** * DPDK callback for Ethernet device configuration. * @@ -384,9 +64,6 @@ mlx5_dev_configure(struct rte_eth_dev *dev) struct mlx5_priv *priv = dev->data->dev_private; unsigned int rxqs_n = dev->data->nb_rx_queues; unsigned int txqs_n = dev->data->nb_tx_queues; - unsigned int i; - unsigned int j; - unsigned int reta_idx_n; const uint8_t use_app_rss_key = !!dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key; int ret = 0; @@ -400,14 +77,18 @@ mlx5_dev_configure(struct rte_eth_dev *dev) return -rte_errno; } priv->rss_conf.rss_key = - rte_realloc(priv->rss_conf.rss_key, - MLX5_RSS_HASH_KEY_LEN, 0); + mlx5_realloc(priv->rss_conf.rss_key, MLX5_MEM_RTE, + MLX5_RSS_HASH_KEY_LEN, 0, SOCKET_ID_ANY); if (!priv->rss_conf.rss_key) { DRV_LOG(ERR, "port %u cannot allocate RSS hash key memory (%u)", dev->data->port_id, rxqs_n); rte_errno = ENOMEM; return -rte_errno; } + + if (dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) + dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH; + memcpy(priv->rss_conf.rss_key, use_app_rss_key ? dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key : @@ -428,32 +109,94 @@ mlx5_dev_configure(struct rte_eth_dev *dev) rte_errno = EINVAL; return -rte_errno; } - if (rxqs_n == priv->rxqs_n) - return 0; + if (rxqs_n != priv->rxqs_n) { + DRV_LOG(INFO, "port %u Rx queues number update: %u -> %u", + dev->data->port_id, priv->rxqs_n, rxqs_n); + priv->rxqs_n = rxqs_n; + } + priv->skip_default_rss_reta = 0; + ret = mlx5_proc_priv_init(dev); + if (ret) + return ret; + return 0; +} + +/** + * Configure default RSS reta. + * + * @param dev + * Pointer to Ethernet device structure. + * + * @return + * 0 on success, a negative errno value otherwise and rte_errno is set. + */ +int +mlx5_dev_configure_rss_reta(struct rte_eth_dev *dev) +{ + struct mlx5_priv *priv = dev->data->dev_private; + unsigned int rxqs_n = dev->data->nb_rx_queues; + unsigned int i; + unsigned int j; + unsigned int reta_idx_n; + int ret = 0; + unsigned int *rss_queue_arr = NULL; + unsigned int rss_queue_n = 0; + + if (priv->skip_default_rss_reta) + return ret; + rss_queue_arr = mlx5_malloc(0, rxqs_n * sizeof(unsigned int), 0, + SOCKET_ID_ANY); + if (!rss_queue_arr) { + DRV_LOG(ERR, "port %u cannot allocate RSS queue list (%u)", + dev->data->port_id, rxqs_n); + rte_errno = ENOMEM; + return -rte_errno; + } + for (i = 0, j = 0; i < rxqs_n; i++) { + struct mlx5_rxq_data *rxq_data; + struct mlx5_rxq_ctrl *rxq_ctrl; + + rxq_data = (*priv->rxqs)[i]; + rxq_ctrl = container_of(rxq_data, struct mlx5_rxq_ctrl, rxq); + if (rxq_ctrl && rxq_ctrl->type == MLX5_RXQ_TYPE_STANDARD) + rss_queue_arr[j++] = i; + } + rss_queue_n = j; + if (rss_queue_n > priv->config.ind_table_max_size) { + DRV_LOG(ERR, "port %u cannot handle this many Rx queues (%u)", + dev->data->port_id, rss_queue_n); + rte_errno = EINVAL; + mlx5_free(rss_queue_arr); + return -rte_errno; + } DRV_LOG(INFO, "port %u Rx queues number update: %u -> %u", dev->data->port_id, priv->rxqs_n, rxqs_n); priv->rxqs_n = rxqs_n; - /* If the requested number of RX queues is not a power of two, use the - * maximum indirection table size for better balancing. - * The result is always rounded to the next power of two. */ - reta_idx_n = (1 << log2above((rxqs_n & (rxqs_n - 1)) ? - priv->config.ind_table_max_size : - rxqs_n)); + /* + * If the requested number of RX queues is not a power of two, + * use the maximum indirection table size for better balancing. + * The result is always rounded to the next power of two. + */ + reta_idx_n = (1 << log2above((rss_queue_n & (rss_queue_n - 1)) ? + priv->config.ind_table_max_size : + rss_queue_n)); ret = mlx5_rss_reta_index_resize(dev, reta_idx_n); - if (ret) + if (ret) { + mlx5_free(rss_queue_arr); return ret; - /* When the number of RX queues is not a power of two, the remaining - * table entries are padded with reused WQs and hashes are not spread - * uniformly. */ + } + /* + * When the number of RX queues is not a power of two, + * the remaining table entries are padded with reused WQs + * and hashes are not spread uniformly. + */ for (i = 0, j = 0; (i != reta_idx_n); ++i) { - (*priv->reta_idx)[i] = j; - if (++j == rxqs_n) + (*priv->reta_idx)[i] = rss_queue_arr[j]; + if (++j == rss_queue_n) j = 0; } - ret = mlx5_proc_priv_init(dev); - if (ret) - return ret; - return 0; + mlx5_free(rss_queue_arr); + return ret; } /** @@ -472,9 +215,10 @@ mlx5_set_default_params(struct rte_eth_dev *dev, struct rte_eth_dev_info *info) /* Minimum CPU utilization. */ info->default_rxportconf.ring_size = 256; info->default_txportconf.ring_size = 256; - info->default_rxportconf.burst_size = 64; - info->default_txportconf.burst_size = 64; - if (priv->link_speed_capa & ETH_LINK_SPEED_100G) { + info->default_rxportconf.burst_size = MLX5_RX_DEFAULT_BURST; + info->default_txportconf.burst_size = MLX5_TX_DEFAULT_BURST; + if ((priv->link_speed_capa & ETH_LINK_SPEED_200G) | + (priv->link_speed_capa & ETH_LINK_SPEED_100G)) { info->default_rxportconf.nb_queues = 16; info->default_txportconf.nb_queues = 16; if (dev->data->nb_rx_queues > 2 || @@ -495,6 +239,42 @@ mlx5_set_default_params(struct rte_eth_dev *dev, struct rte_eth_dev_info *info) } } +/** + * Sets tx mbuf limiting parameters. + * + * @param dev + * Pointer to Ethernet device. + * @param[out] info + * Info structure output buffer. + */ +static void +mlx5_set_txlimit_params(struct rte_eth_dev *dev, struct rte_eth_dev_info *info) +{ + struct mlx5_priv *priv = dev->data->dev_private; + struct mlx5_dev_config *config = &priv->config; + unsigned int inlen; + uint16_t nb_max; + + inlen = (config->txq_inline_max == MLX5_ARG_UNSET) ? + MLX5_SEND_DEF_INLINE_LEN : + (unsigned int)config->txq_inline_max; + MLX5_ASSERT(config->txq_inline_min >= 0); + inlen = RTE_MAX(inlen, (unsigned int)config->txq_inline_min); + inlen = RTE_MIN(inlen, MLX5_WQE_SIZE_MAX + + MLX5_ESEG_MIN_INLINE_SIZE - + MLX5_WQE_CSEG_SIZE - + MLX5_WQE_ESEG_SIZE - + MLX5_WQE_DSEG_SIZE * 2); + nb_max = (MLX5_WQE_SIZE_MAX + + MLX5_ESEG_MIN_INLINE_SIZE - + MLX5_WQE_CSEG_SIZE - + MLX5_WQE_ESEG_SIZE - + MLX5_WQE_DSEG_SIZE - + inlen) / MLX5_WSEG_SIZE; + info->tx_desc_lim.nb_seg_max = nb_max; + info->tx_desc_lim.nb_mtu_seg_max = nb_max; +} + /** * DPDK callback to get information about the device. * @@ -503,26 +283,25 @@ mlx5_set_default_params(struct rte_eth_dev *dev, struct rte_eth_dev_info *info) * @param[out] info * Info structure output buffer. */ -void +int mlx5_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_dev_config *config = &priv->config; unsigned int max; - char ifname[IF_NAMESIZE]; /* FIXME: we should ask the device for these values. */ info->min_rx_bufsize = 32; info->max_rx_pktlen = 65536; + info->max_lro_pkt_size = MLX5_MAX_LRO_SIZE; /* * Since we need one CQ per QP, the limit is the minimum number * between the two values. */ - max = RTE_MIN(priv->sh->device_attr.orig_attr.max_cq, - priv->sh->device_attr.orig_attr.max_qp); - /* If max >= 65535 then max = 0, max_rx_queues is uint16_t. */ - if (max >= 65535) - max = 65535; + max = RTE_MIN(priv->sh->device_attr.max_cq, + priv->sh->device_attr.max_qp); + /* max_rx_queues is uint16_t. */ + max = RTE_MIN(max, (unsigned int)UINT16_MAX); info->max_rx_queues = max; info->max_tx_queues = max; info->max_mac_addrs = MLX5_MAX_UC_MAC_ADDRESSES; @@ -530,28 +309,46 @@ mlx5_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info) info->rx_offload_capa = (mlx5_get_rx_port_offloads() | info->rx_queue_offload_capa); info->tx_offload_capa = mlx5_get_tx_port_offloads(dev); - if (mlx5_get_ifname(dev, &ifname) == 0) - info->if_index = if_nametoindex(ifname); + info->if_index = mlx5_ifindex(dev); info->reta_size = priv->reta_idx_n ? priv->reta_idx_n : config->ind_table_max_size; info->hash_key_size = MLX5_RSS_HASH_KEY_LEN; info->speed_capa = priv->link_speed_capa; info->flow_type_rss_offloads = ~MLX5_RSS_HF_MASK; mlx5_set_default_params(dev, info); + mlx5_set_txlimit_params(dev, info); info->switch_info.name = dev->data->name; info->switch_info.domain_id = priv->domain_id; info->switch_info.port_id = priv->representor_id; if (priv->representor) { - unsigned int i = mlx5_dev_to_port_id(dev->device, NULL, 0); - uint16_t port_id[i]; + uint16_t port_id; - i = RTE_MIN(mlx5_dev_to_port_id(dev->device, port_id, i), i); - while (i--) { + if (priv->pf_bond >= 0) { + /* + * Switch port ID is opaque value with driver defined + * format. Push the PF index in bonding configurations + * in upper four bits of port ID. If we get too many + * representors (more than 4K) or PFs (more than 15) + * this approach must be reconsidered. + */ + if ((info->switch_info.port_id >> + MLX5_PORT_ID_BONDING_PF_SHIFT) || + priv->pf_bond > MLX5_PORT_ID_BONDING_PF_MASK) { + DRV_LOG(ERR, "can't update switch port ID" + " for bonding device"); + MLX5_ASSERT(false); + return -ENODEV; + } + info->switch_info.port_id |= + priv->pf_bond << MLX5_PORT_ID_BONDING_PF_SHIFT; + } + MLX5_ETH_FOREACH_DEV(port_id, priv->pci_dev) { struct mlx5_priv *opriv = - rte_eth_devices[port_id[i]].data->dev_private; + rte_eth_devices[port_id].data->dev_private; if (!opriv || opriv->representor || + opriv->sh != priv->sh || opriv->domain_id != priv->domain_id) continue; /* @@ -562,6 +359,7 @@ mlx5_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info) break; } } + return 0; } /** @@ -577,10 +375,11 @@ mlx5_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info) * @return * 0 on success, or the size of the non truncated string if too big. */ -int mlx5_fw_version_get(struct rte_eth_dev *dev, char *fw_ver, size_t fw_size) +int +mlx5_fw_version_get(struct rte_eth_dev *dev, char *fw_ver, size_t fw_size) { struct mlx5_priv *priv = dev->data->dev_private; - struct ibv_device_attr *attr = &priv->sh->device_attr.orig_attr; + struct mlx5_dev_attr *attr = &priv->sh->device_attr; size_t size = strnlen(attr->fw_ver, sizeof(attr->fw_ver)) + 1; if (fw_size < size) @@ -628,770 +427,58 @@ mlx5_dev_supported_ptypes_get(struct rte_eth_dev *dev) } /** - * Retrieve the master device for representor in the same switch domain. - * - * @param dev - * Pointer to representor Ethernet device structure. - * - * @return - * Master device structure on success, NULL otherwise. - */ - -static struct rte_eth_dev * -mlx5_find_master_dev(struct rte_eth_dev *dev) -{ - struct mlx5_priv *priv; - uint16_t port_id; - uint16_t domain_id; - - priv = dev->data->dev_private; - domain_id = priv->domain_id; - assert(priv->representor); - RTE_ETH_FOREACH_DEV_OF(port_id, dev->device) { - priv = rte_eth_devices[port_id].data->dev_private; - if (priv && - priv->master && - priv->domain_id == domain_id) - return &rte_eth_devices[port_id]; - } - return NULL; -} - -/** - * DPDK callback to retrieve physical link information. + * DPDK callback to change the MTU. * * @param dev * Pointer to Ethernet device structure. - * @param[out] link - * Storage for current link status. + * @param in_mtu + * New MTU. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ -static int -mlx5_link_update_unlocked_gset(struct rte_eth_dev *dev, - struct rte_eth_link *link) +int +mlx5_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu) { struct mlx5_priv *priv = dev->data->dev_private; - struct ethtool_cmd edata = { - .cmd = ETHTOOL_GSET /* Deprecated since Linux v4.5. */ - }; - struct ifreq ifr; - struct rte_eth_link dev_link; - int link_speed = 0; + uint16_t kern_mtu = 0; int ret; - ret = mlx5_ifreq(dev, SIOCGIFFLAGS, &ifr); - if (ret) { - DRV_LOG(WARNING, "port %u ioctl(SIOCGIFFLAGS) failed: %s", - dev->data->port_id, strerror(rte_errno)); + ret = mlx5_get_mtu(dev, &kern_mtu); + if (ret) return ret; + /* Set kernel interface MTU first. */ + ret = mlx5_set_mtu(dev, mtu); + if (ret) + return ret; + ret = mlx5_get_mtu(dev, &kern_mtu); + if (ret) + return ret; + if (kern_mtu == mtu) { + priv->mtu = mtu; + DRV_LOG(DEBUG, "port %u adapter MTU set to %u", + dev->data->port_id, mtu); + return 0; } - dev_link = (struct rte_eth_link) { - .link_status = ((ifr.ifr_flags & IFF_UP) && - (ifr.ifr_flags & IFF_RUNNING)), - }; - ifr = (struct ifreq) { - .ifr_data = (void *)&edata, - }; - ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr); - if (ret) { - if (ret == -ENOTSUP && priv->representor) { - struct rte_eth_dev *master; - - /* - * For representors we can try to inherit link - * settings from the master device. Actually - * link settings do not make a lot of sense - * for representors due to missing physical - * link. The old kernel drivers supported - * emulated settings query for representors, - * the new ones do not, so we have to add - * this code for compatibility issues. - */ - master = mlx5_find_master_dev(dev); - if (master) { - ifr = (struct ifreq) { - .ifr_data = (void *)&edata, - }; - ret = mlx5_ifreq(master, SIOCETHTOOL, &ifr); - } - } - if (ret) { - DRV_LOG(WARNING, - "port %u ioctl(SIOCETHTOOL," - " ETHTOOL_GSET) failed: %s", - dev->data->port_id, strerror(rte_errno)); - return ret; - } - } - link_speed = ethtool_cmd_speed(&edata); - if (link_speed == -1) - dev_link.link_speed = ETH_SPEED_NUM_NONE; - else - dev_link.link_speed = link_speed; - priv->link_speed_capa = 0; - if (edata.supported & SUPPORTED_Autoneg) - priv->link_speed_capa |= ETH_LINK_SPEED_AUTONEG; - if (edata.supported & (SUPPORTED_1000baseT_Full | - SUPPORTED_1000baseKX_Full)) - priv->link_speed_capa |= ETH_LINK_SPEED_1G; - if (edata.supported & SUPPORTED_10000baseKR_Full) - priv->link_speed_capa |= ETH_LINK_SPEED_10G; - if (edata.supported & (SUPPORTED_40000baseKR4_Full | - SUPPORTED_40000baseCR4_Full | - SUPPORTED_40000baseSR4_Full | - SUPPORTED_40000baseLR4_Full)) - priv->link_speed_capa |= ETH_LINK_SPEED_40G; - dev_link.link_duplex = ((edata.duplex == DUPLEX_HALF) ? - ETH_LINK_HALF_DUPLEX : ETH_LINK_FULL_DUPLEX); - dev_link.link_autoneg = !(dev->data->dev_conf.link_speeds & - ETH_LINK_SPEED_FIXED); - if (((dev_link.link_speed && !dev_link.link_status) || - (!dev_link.link_speed && dev_link.link_status))) { - rte_errno = EAGAIN; - return -rte_errno; - } - *link = dev_link; - return 0; + rte_errno = EAGAIN; + return -rte_errno; } /** - * Retrieve physical link information (unlocked version using new ioctl). + * Configure the RX function to use. * * @param dev - * Pointer to Ethernet device structure. - * @param[out] link - * Storage for current link status. + * Pointer to private data structure. * * @return - * 0 on success, a negative errno value otherwise and rte_errno is set. + * Pointer to selected Rx burst function. */ -static int -mlx5_link_update_unlocked_gs(struct rte_eth_dev *dev, - struct rte_eth_link *link) - +eth_rx_burst_t +mlx5_select_rx_function(struct rte_eth_dev *dev) { - struct mlx5_priv *priv = dev->data->dev_private; - struct ethtool_link_settings gcmd = { .cmd = ETHTOOL_GLINKSETTINGS }; - struct ifreq ifr; - struct rte_eth_link dev_link; - struct rte_eth_dev *master = NULL; - uint64_t sc; - int ret; + eth_rx_burst_t rx_pkt_burst = mlx5_rx_burst; - ret = mlx5_ifreq(dev, SIOCGIFFLAGS, &ifr); - if (ret) { - DRV_LOG(WARNING, "port %u ioctl(SIOCGIFFLAGS) failed: %s", - dev->data->port_id, strerror(rte_errno)); - return ret; - } - dev_link = (struct rte_eth_link) { - .link_status = ((ifr.ifr_flags & IFF_UP) && - (ifr.ifr_flags & IFF_RUNNING)), - }; - ifr = (struct ifreq) { - .ifr_data = (void *)&gcmd, - }; - ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr); - if (ret) { - if (ret == -ENOTSUP && priv->representor) { - /* - * For representors we can try to inherit link - * settings from the master device. Actually - * link settings do not make a lot of sense - * for representors due to missing physical - * link. The old kernel drivers supported - * emulated settings query for representors, - * the new ones do not, so we have to add - * this code for compatibility issues. - */ - master = mlx5_find_master_dev(dev); - if (master) { - ifr = (struct ifreq) { - .ifr_data = (void *)&gcmd, - }; - ret = mlx5_ifreq(master, SIOCETHTOOL, &ifr); - } - } - if (ret) { - DRV_LOG(DEBUG, - "port %u ioctl(SIOCETHTOOL," - " ETHTOOL_GLINKSETTINGS) failed: %s", - dev->data->port_id, strerror(rte_errno)); - return ret; - } - - } - gcmd.link_mode_masks_nwords = -gcmd.link_mode_masks_nwords; - - alignas(struct ethtool_link_settings) - uint8_t data[offsetof(struct ethtool_link_settings, link_mode_masks) + - sizeof(uint32_t) * gcmd.link_mode_masks_nwords * 3]; - struct ethtool_link_settings *ecmd = (void *)data; - - *ecmd = gcmd; - ifr.ifr_data = (void *)ecmd; - ret = mlx5_ifreq(master ? master : dev, SIOCETHTOOL, &ifr); - if (ret) { - DRV_LOG(DEBUG, - "port %u ioctl(SIOCETHTOOL," - "ETHTOOL_GLINKSETTINGS) failed: %s", - dev->data->port_id, strerror(rte_errno)); - return ret; - } - dev_link.link_speed = ecmd->speed; - sc = ecmd->link_mode_masks[0] | - ((uint64_t)ecmd->link_mode_masks[1] << 32); - priv->link_speed_capa = 0; - if (sc & MLX5_BITSHIFT(ETHTOOL_LINK_MODE_Autoneg_BIT)) - priv->link_speed_capa |= ETH_LINK_SPEED_AUTONEG; - if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_1000baseT_Full_BIT) | - MLX5_BITSHIFT(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT))) - priv->link_speed_capa |= ETH_LINK_SPEED_1G; - if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT) | - MLX5_BITSHIFT(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT) | - MLX5_BITSHIFT(ETHTOOL_LINK_MODE_10000baseR_FEC_BIT))) - priv->link_speed_capa |= ETH_LINK_SPEED_10G; - if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT) | - MLX5_BITSHIFT(ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT))) - priv->link_speed_capa |= ETH_LINK_SPEED_20G; - if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT) | - MLX5_BITSHIFT(ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT) | - MLX5_BITSHIFT(ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT) | - MLX5_BITSHIFT(ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT))) - priv->link_speed_capa |= ETH_LINK_SPEED_40G; - if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT) | - MLX5_BITSHIFT(ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT) | - MLX5_BITSHIFT(ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT) | - MLX5_BITSHIFT(ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT))) - priv->link_speed_capa |= ETH_LINK_SPEED_56G; - if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_25000baseCR_Full_BIT) | - MLX5_BITSHIFT(ETHTOOL_LINK_MODE_25000baseKR_Full_BIT) | - MLX5_BITSHIFT(ETHTOOL_LINK_MODE_25000baseSR_Full_BIT))) - priv->link_speed_capa |= ETH_LINK_SPEED_25G; - if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT) | - MLX5_BITSHIFT(ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT))) - priv->link_speed_capa |= ETH_LINK_SPEED_50G; - if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT) | - MLX5_BITSHIFT(ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT) | - MLX5_BITSHIFT(ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT) | - MLX5_BITSHIFT(ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT))) - priv->link_speed_capa |= ETH_LINK_SPEED_100G; - dev_link.link_duplex = ((ecmd->duplex == DUPLEX_HALF) ? - ETH_LINK_HALF_DUPLEX : ETH_LINK_FULL_DUPLEX); - dev_link.link_autoneg = !(dev->data->dev_conf.link_speeds & - ETH_LINK_SPEED_FIXED); - if (((dev_link.link_speed && !dev_link.link_status) || - (!dev_link.link_speed && dev_link.link_status))) { - rte_errno = EAGAIN; - return -rte_errno; - } - *link = dev_link; - return 0; -} - -/** - * DPDK callback to retrieve physical link information. - * - * @param dev - * Pointer to Ethernet device structure. - * @param wait_to_complete - * Wait for request completion. - * - * @return - * 0 if link status was not updated, positive if it was, a negative errno - * value otherwise and rte_errno is set. - */ -int -mlx5_link_update(struct rte_eth_dev *dev, int wait_to_complete) -{ - int ret; - struct rte_eth_link dev_link; - time_t start_time = time(NULL); - - do { - ret = mlx5_link_update_unlocked_gs(dev, &dev_link); - if (ret) - ret = mlx5_link_update_unlocked_gset(dev, &dev_link); - if (ret == 0) - break; - /* Handle wait to complete situation. */ - if (wait_to_complete && ret == -EAGAIN) { - if (abs((int)difftime(time(NULL), start_time)) < - MLX5_LINK_STATUS_TIMEOUT) { - usleep(0); - continue; - } else { - rte_errno = EBUSY; - return -rte_errno; - } - } else if (ret < 0) { - return ret; - } - } while (wait_to_complete); - ret = !!memcmp(&dev->data->dev_link, &dev_link, - sizeof(struct rte_eth_link)); - dev->data->dev_link = dev_link; - return ret; -} - -/** - * DPDK callback to change the MTU. - * - * @param dev - * Pointer to Ethernet device structure. - * @param in_mtu - * New MTU. - * - * @return - * 0 on success, a negative errno value otherwise and rte_errno is set. - */ -int -mlx5_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu) -{ - struct mlx5_priv *priv = dev->data->dev_private; - uint16_t kern_mtu = 0; - int ret; - - ret = mlx5_get_mtu(dev, &kern_mtu); - if (ret) - return ret; - /* Set kernel interface MTU first. */ - ret = mlx5_set_mtu(dev, mtu); - if (ret) - return ret; - ret = mlx5_get_mtu(dev, &kern_mtu); - if (ret) - return ret; - if (kern_mtu == mtu) { - priv->mtu = mtu; - DRV_LOG(DEBUG, "port %u adapter MTU set to %u", - dev->data->port_id, mtu); - return 0; - } - rte_errno = EAGAIN; - return -rte_errno; -} - -/** - * DPDK callback to get flow control status. - * - * @param dev - * Pointer to Ethernet device structure. - * @param[out] fc_conf - * Flow control output buffer. - * - * @return - * 0 on success, a negative errno value otherwise and rte_errno is set. - */ -int -mlx5_dev_get_flow_ctrl(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf) -{ - struct ifreq ifr; - struct ethtool_pauseparam ethpause = { - .cmd = ETHTOOL_GPAUSEPARAM - }; - int ret; - - ifr.ifr_data = (void *)ðpause; - ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr); - if (ret) { - DRV_LOG(WARNING, - "port %u ioctl(SIOCETHTOOL, ETHTOOL_GPAUSEPARAM) failed:" - " %s", - dev->data->port_id, strerror(rte_errno)); - return ret; - } - fc_conf->autoneg = ethpause.autoneg; - if (ethpause.rx_pause && ethpause.tx_pause) - fc_conf->mode = RTE_FC_FULL; - else if (ethpause.rx_pause) - fc_conf->mode = RTE_FC_RX_PAUSE; - else if (ethpause.tx_pause) - fc_conf->mode = RTE_FC_TX_PAUSE; - else - fc_conf->mode = RTE_FC_NONE; - return 0; -} - -/** - * DPDK callback to modify flow control parameters. - * - * @param dev - * Pointer to Ethernet device structure. - * @param[in] fc_conf - * Flow control parameters. - * - * @return - * 0 on success, a negative errno value otherwise and rte_errno is set. - */ -int -mlx5_dev_set_flow_ctrl(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf) -{ - struct ifreq ifr; - struct ethtool_pauseparam ethpause = { - .cmd = ETHTOOL_SPAUSEPARAM - }; - int ret; - - ifr.ifr_data = (void *)ðpause; - ethpause.autoneg = fc_conf->autoneg; - if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) || - (fc_conf->mode & RTE_FC_RX_PAUSE)) - ethpause.rx_pause = 1; - else - ethpause.rx_pause = 0; - - if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) || - (fc_conf->mode & RTE_FC_TX_PAUSE)) - ethpause.tx_pause = 1; - else - ethpause.tx_pause = 0; - ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr); - if (ret) { - DRV_LOG(WARNING, - "port %u ioctl(SIOCETHTOOL, ETHTOOL_SPAUSEPARAM)" - " failed: %s", - dev->data->port_id, strerror(rte_errno)); - return ret; - } - return 0; -} - -/** - * Get PCI information from struct ibv_device. - * - * @param device - * Pointer to Ethernet device structure. - * @param[out] pci_addr - * PCI bus address output buffer. - * - * @return - * 0 on success, a negative errno value otherwise and rte_errno is set. - */ -int -mlx5_ibv_device_to_pci_addr(const struct ibv_device *device, - struct rte_pci_addr *pci_addr) -{ - FILE *file; - char line[32]; - MKSTR(path, "%s/device/uevent", device->ibdev_path); - - file = fopen(path, "rb"); - if (file == NULL) { - rte_errno = errno; - return -rte_errno; - } - while (fgets(line, sizeof(line), file) == line) { - size_t len = strlen(line); - int ret; - - /* Truncate long lines. */ - if (len == (sizeof(line) - 1)) - while (line[(len - 1)] != '\n') { - ret = fgetc(file); - if (ret == EOF) - break; - line[(len - 1)] = ret; - } - /* Extract information. */ - if (sscanf(line, - "PCI_SLOT_NAME=" - "%" SCNx32 ":%" SCNx8 ":%" SCNx8 ".%" SCNx8 "\n", - &pci_addr->domain, - &pci_addr->bus, - &pci_addr->devid, - &pci_addr->function) == 4) { - ret = 0; - break; - } - } - fclose(file); - return 0; -} - -/** - * Handle shared asynchronous events the NIC (removal event - * and link status change). Supports multiport IB device. - * - * @param cb_arg - * Callback argument. - */ -void -mlx5_dev_interrupt_handler(void *cb_arg) -{ - struct mlx5_ibv_shared *sh = cb_arg; - struct ibv_async_event event; - - /* Read all message from the IB device and acknowledge them. */ - for (;;) { - struct rte_eth_dev *dev; - uint32_t tmp; - - if (mlx5_glue->get_async_event(sh->ctx, &event)) - break; - /* Retrieve and check IB port index. */ - tmp = (uint32_t)event.element.port_num; - assert(tmp && (tmp <= sh->max_port)); - if (!tmp || - tmp > sh->max_port || - sh->port[tmp - 1].ih_port_id >= RTE_MAX_ETHPORTS) { - /* - * Invalid IB port index or no handler - * installed for this port. - */ - mlx5_glue->ack_async_event(&event); - continue; - } - /* Retrieve ethernet device descriptor. */ - tmp = sh->port[tmp - 1].ih_port_id; - dev = &rte_eth_devices[tmp]; - tmp = 0; - assert(dev); - if ((event.event_type == IBV_EVENT_PORT_ACTIVE || - event.event_type == IBV_EVENT_PORT_ERR) && - dev->data->dev_conf.intr_conf.lsc) { - mlx5_glue->ack_async_event(&event); - if (mlx5_link_update(dev, 0) == -EAGAIN) { - usleep(0); - continue; - } - _rte_eth_dev_callback_process - (dev, RTE_ETH_EVENT_INTR_LSC, NULL); - continue; - } - if (event.event_type == IBV_EVENT_DEVICE_FATAL && - dev->data->dev_conf.intr_conf.rmv) { - mlx5_glue->ack_async_event(&event); - _rte_eth_dev_callback_process - (dev, RTE_ETH_EVENT_INTR_RMV, NULL); - continue; - } - DRV_LOG(DEBUG, - "port %u event type %d on not handled", - dev->data->port_id, event.event_type); - mlx5_glue->ack_async_event(&event); - } -} - -/** - * Uninstall shared asynchronous device events handler. - * This function is implemeted to support event sharing - * between multiple ports of single IB device. - * - * @param dev - * Pointer to Ethernet device. - */ -static void -mlx5_dev_shared_handler_uninstall(struct rte_eth_dev *dev) -{ - struct mlx5_priv *priv = dev->data->dev_private; - struct mlx5_ibv_shared *sh = priv->sh; - - if (rte_eal_process_type() != RTE_PROC_PRIMARY) - return; - pthread_mutex_lock(&sh->intr_mutex); - assert(priv->ibv_port); - assert(priv->ibv_port <= sh->max_port); - assert(dev->data->port_id < RTE_MAX_ETHPORTS); - if (sh->port[priv->ibv_port - 1].ih_port_id >= RTE_MAX_ETHPORTS) - goto exit; - assert(sh->port[priv->ibv_port - 1].ih_port_id == - (uint32_t)dev->data->port_id); - assert(sh->intr_cnt); - sh->port[priv->ibv_port - 1].ih_port_id = RTE_MAX_ETHPORTS; - if (!sh->intr_cnt || --sh->intr_cnt) - goto exit; - rte_intr_callback_unregister(&sh->intr_handle, - mlx5_dev_interrupt_handler, sh); - sh->intr_handle.fd = 0; - sh->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN; -exit: - pthread_mutex_unlock(&sh->intr_mutex); -} - -/** - * Install shared asyncronous device events handler. - * This function is implemeted to support event sharing - * between multiple ports of single IB device. - * - * @param dev - * Pointer to Ethernet device. - */ -static void -mlx5_dev_shared_handler_install(struct rte_eth_dev *dev) -{ - struct mlx5_priv *priv = dev->data->dev_private; - struct mlx5_ibv_shared *sh = priv->sh; - int ret; - int flags; - - if (rte_eal_process_type() != RTE_PROC_PRIMARY) - return; - pthread_mutex_lock(&sh->intr_mutex); - assert(priv->ibv_port); - assert(priv->ibv_port <= sh->max_port); - assert(dev->data->port_id < RTE_MAX_ETHPORTS); - if (sh->port[priv->ibv_port - 1].ih_port_id < RTE_MAX_ETHPORTS) { - /* The handler is already installed for this port. */ - assert(sh->intr_cnt); - goto exit; - } - sh->port[priv->ibv_port - 1].ih_port_id = (uint32_t)dev->data->port_id; - if (sh->intr_cnt) { - sh->intr_cnt++; - goto exit; - } - /* No shared handler installed. */ - assert(sh->ctx->async_fd > 0); - flags = fcntl(sh->ctx->async_fd, F_GETFL); - ret = fcntl(sh->ctx->async_fd, F_SETFL, flags | O_NONBLOCK); - if (ret) { - DRV_LOG(INFO, "failed to change file descriptor" - " async event queue"); - /* Indicate there will be no interrupts. */ - dev->data->dev_conf.intr_conf.lsc = 0; - dev->data->dev_conf.intr_conf.rmv = 0; - sh->port[priv->ibv_port - 1].ih_port_id = RTE_MAX_ETHPORTS; - goto exit; - } - sh->intr_handle.fd = sh->ctx->async_fd; - sh->intr_handle.type = RTE_INTR_HANDLE_EXT; - rte_intr_callback_register(&sh->intr_handle, - mlx5_dev_interrupt_handler, sh); - sh->intr_cnt++; -exit: - pthread_mutex_unlock(&sh->intr_mutex); -} - -/** - * Uninstall interrupt handler. - * - * @param dev - * Pointer to Ethernet device. - */ -void -mlx5_dev_interrupt_handler_uninstall(struct rte_eth_dev *dev) -{ - mlx5_dev_shared_handler_uninstall(dev); -} - -/** - * Install interrupt handler. - * - * @param dev - * Pointer to Ethernet device. - */ -void -mlx5_dev_interrupt_handler_install(struct rte_eth_dev *dev) -{ - mlx5_dev_shared_handler_install(dev); -} - -/** - * DPDK callback to bring the link DOWN. - * - * @param dev - * Pointer to Ethernet device structure. - * - * @return - * 0 on success, a negative errno value otherwise and rte_errno is set. - */ -int -mlx5_set_link_down(struct rte_eth_dev *dev) -{ - return mlx5_set_flags(dev, ~IFF_UP, ~IFF_UP); -} - -/** - * DPDK callback to bring the link UP. - * - * @param dev - * Pointer to Ethernet device structure. - * - * @return - * 0 on success, a negative errno value otherwise and rte_errno is set. - */ -int -mlx5_set_link_up(struct rte_eth_dev *dev) -{ - return mlx5_set_flags(dev, ~IFF_UP, IFF_UP); -} - -/** - * Configure the TX function to use. - * - * @param dev - * Pointer to private data structure. - * - * @return - * Pointer to selected Tx burst function. - */ -eth_tx_burst_t -mlx5_select_tx_function(struct rte_eth_dev *dev) -{ - struct mlx5_priv *priv = dev->data->dev_private; - eth_tx_burst_t tx_pkt_burst = mlx5_tx_burst; - struct mlx5_dev_config *config = &priv->config; - uint64_t tx_offloads = dev->data->dev_conf.txmode.offloads; - int tso = !!(tx_offloads & (DEV_TX_OFFLOAD_TCP_TSO | - DEV_TX_OFFLOAD_VXLAN_TNL_TSO | - DEV_TX_OFFLOAD_GRE_TNL_TSO | - DEV_TX_OFFLOAD_IP_TNL_TSO | - DEV_TX_OFFLOAD_UDP_TNL_TSO)); - int swp = !!(tx_offloads & (DEV_TX_OFFLOAD_IP_TNL_TSO | - DEV_TX_OFFLOAD_UDP_TNL_TSO | - DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM)); - int vlan_insert = !!(tx_offloads & DEV_TX_OFFLOAD_VLAN_INSERT); - - assert(priv != NULL); - /* Select appropriate TX function. */ - if (vlan_insert || tso || swp) - return tx_pkt_burst; - if (config->mps == MLX5_MPW_ENHANCED) { - if (mlx5_check_vec_tx_support(dev) > 0) { - if (mlx5_check_raw_vec_tx_support(dev) > 0) - tx_pkt_burst = mlx5_tx_burst_raw_vec; - else - tx_pkt_burst = mlx5_tx_burst_vec; - DRV_LOG(DEBUG, - "port %u selected enhanced MPW Tx vectorized" - " function", - dev->data->port_id); - } else { - tx_pkt_burst = mlx5_tx_burst_empw; - DRV_LOG(DEBUG, - "port %u selected enhanced MPW Tx function", - dev->data->port_id); - } - } else if (config->mps && (config->txq_inline > 0)) { - tx_pkt_burst = mlx5_tx_burst_mpw_inline; - DRV_LOG(DEBUG, "port %u selected MPW inline Tx function", - dev->data->port_id); - } else if (config->mps) { - tx_pkt_burst = mlx5_tx_burst_mpw; - DRV_LOG(DEBUG, "port %u selected MPW Tx function", - dev->data->port_id); - } - return tx_pkt_burst; -} - -/** - * Configure the RX function to use. - * - * @param dev - * Pointer to private data structure. - * - * @return - * Pointer to selected Rx burst function. - */ -eth_rx_burst_t -mlx5_select_rx_function(struct rte_eth_dev *dev) -{ - eth_rx_burst_t rx_pkt_burst = mlx5_rx_burst; - - assert(dev != NULL); + MLX5_ASSERT(dev != NULL); if (mlx5_check_vec_rx_support(dev) > 0) { rx_pkt_burst = mlx5_rx_burst_vec; DRV_LOG(DEBUG, "port %u selected Rx vectorized function", @@ -1403,323 +490,97 @@ mlx5_select_rx_function(struct rte_eth_dev *dev) } /** - * Check if mlx5 device was removed. - * - * @param dev - * Pointer to Ethernet device structure. - * - * @return - * 1 when device is removed, otherwise 0. - */ -int -mlx5_is_removed(struct rte_eth_dev *dev) -{ - struct ibv_device_attr device_attr; - struct mlx5_priv *priv = dev->data->dev_private; - - if (mlx5_glue->query_device(priv->sh->ctx, &device_attr) == EIO) - return 1; - return 0; -} - -/** - * Get port ID list of mlx5 instances sharing a common device. - * - * @param[in] dev - * Device to look for. - * @param[out] port_list - * Result buffer for collected port IDs. - * @param port_list_n - * Maximum number of entries in result buffer. If 0, @p port_list can be - * NULL. - * - * @return - * Number of matching instances regardless of the @p port_list_n - * parameter, 0 if none were found. - */ -unsigned int -mlx5_dev_to_port_id(const struct rte_device *dev, uint16_t *port_list, - unsigned int port_list_n) -{ - uint16_t id; - unsigned int n = 0; - - RTE_ETH_FOREACH_DEV_OF(id, dev) { - if (n < port_list_n) - port_list[n] = id; - n++; - } - return n; -} - -/** - * Get the E-Switch domain id this port belongs to. + * Get the E-Switch parameters by port id. * * @param[in] port * Device port id. + * @param[in] valid + * Device port id is valid, skip check. This flag is useful + * when trials are performed from probing and device is not + * flagged as valid yet (in attaching process). * @param[out] es_domain_id * E-Switch domain id. * @param[out] es_port_id * The port id of the port in the E-Switch. * * @return - * 0 on success, a negative errno value otherwise and rte_errno is set. + * pointer to device private data structure containing data needed + * on success, NULL otherwise and rte_errno is set. */ -int -mlx5_port_to_eswitch_info(uint16_t port, - uint16_t *es_domain_id, uint16_t *es_port_id) +struct mlx5_priv * +mlx5_port_to_eswitch_info(uint16_t port, bool valid) { struct rte_eth_dev *dev; struct mlx5_priv *priv; if (port >= RTE_MAX_ETHPORTS) { rte_errno = EINVAL; - return -rte_errno; + return NULL; } - if (!rte_eth_dev_is_valid_port(port)) { + if (!valid && !rte_eth_dev_is_valid_port(port)) { rte_errno = ENODEV; - return -rte_errno; + return NULL; } dev = &rte_eth_devices[port]; priv = dev->data->dev_private; if (!(priv->representor || priv->master)) { rte_errno = EINVAL; - return -rte_errno; + return NULL; } - if (es_domain_id) - *es_domain_id = priv->domain_id; - if (es_port_id) - *es_port_id = priv->vport_id; - return 0; + return priv; } /** - * Get switch information associated with network interface. + * Get the E-Switch parameters by device instance. * - * @param ifindex - * Network interface index. - * @param[out] info - * Switch information object, populated in case of success. - * - * @return - * 0 on success, a negative errno value otherwise and rte_errno is set. - */ -int -mlx5_sysfs_switch_info(unsigned int ifindex, struct mlx5_switch_info *info) -{ - char ifname[IF_NAMESIZE]; - char port_name[IF_NAMESIZE]; - FILE *file; - struct mlx5_switch_info data = { - .master = 0, - .representor = 0, - .name_type = MLX5_PHYS_PORT_NAME_TYPE_NOTSET, - .port_name = 0, - .switch_id = 0, - }; - DIR *dir; - bool port_switch_id_set = false; - bool device_dir = false; - char c; - int ret; - - if (!if_indextoname(ifindex, ifname)) { - rte_errno = errno; - return -rte_errno; - } - - MKSTR(phys_port_name, "/sys/class/net/%s/phys_port_name", - ifname); - MKSTR(phys_switch_id, "/sys/class/net/%s/phys_switch_id", - ifname); - MKSTR(pci_device, "/sys/class/net/%s/device", - ifname); - - file = fopen(phys_port_name, "rb"); - if (file != NULL) { - ret = fscanf(file, "%s", port_name); - fclose(file); - if (ret == 1) - mlx5_translate_port_name(port_name, &data); - } - file = fopen(phys_switch_id, "rb"); - if (file == NULL) { - rte_errno = errno; - return -rte_errno; - } - port_switch_id_set = - fscanf(file, "%" SCNx64 "%c", &data.switch_id, &c) == 2 && - c == '\n'; - fclose(file); - dir = opendir(pci_device); - if (dir != NULL) { - closedir(dir); - device_dir = true; - } - if (port_switch_id_set) { - /* We have some E-Switch configuration. */ - mlx5_sysfs_check_switch_info(device_dir, &data); - } - *info = data; - assert(!(data.master && data.representor)); - if (data.master && data.representor) { - DRV_LOG(ERR, "ifindex %u device is recognized as master" - " and as representor", ifindex); - rte_errno = ENODEV; - return -rte_errno; - } - return 0; -} - -/** - * Analyze gathered port parameters via Netlink to recognize master - * and representor devices for E-Switch configuration. - * - * @param[in] num_vf_set - * flag of presence of number of VFs port attribute. - * @param[inout] switch_info - * Port information, including port name as a number and port name - * type if recognized + * @param[in] port + * Device port id. + * @param[out] es_domain_id + * E-Switch domain id. + * @param[out] es_port_id + * The port id of the port in the E-Switch. * * @return - * master and representor flags are set in switch_info according to - * recognized parameters (if any). + * pointer to device private data structure containing data needed + * on success, NULL otherwise and rte_errno is set. */ -void -mlx5_nl_check_switch_info(bool num_vf_set, - struct mlx5_switch_info *switch_info) +struct mlx5_priv * +mlx5_dev_to_eswitch_info(struct rte_eth_dev *dev) { - switch (switch_info->name_type) { - case MLX5_PHYS_PORT_NAME_TYPE_UNKNOWN: - /* - * Name is not recognized, assume the master, - * check the number of VFs key presence. - */ - switch_info->master = num_vf_set; - break; - case MLX5_PHYS_PORT_NAME_TYPE_NOTSET: - /* - * Name is not set, this assumes the legacy naming - * schema for master, just check if there is a - * number of VFs key. - */ - switch_info->master = num_vf_set; - break; - case MLX5_PHYS_PORT_NAME_TYPE_UPLINK: - /* New uplink naming schema recognized. */ - switch_info->master = 1; - break; - case MLX5_PHYS_PORT_NAME_TYPE_LEGACY: - /* Legacy representors naming schema. */ - switch_info->representor = !num_vf_set; - break; - case MLX5_PHYS_PORT_NAME_TYPE_PFVF: - /* New representors naming schema. */ - switch_info->representor = 1; - break; - } -} + struct mlx5_priv *priv; -/** - * Analyze gathered port parameters via sysfs to recognize master - * and representor devices for E-Switch configuration. - * - * @param[in] device_dir - * flag of presence of "device" directory under port device key. - * @param[inout] switch_info - * Port information, including port name as a number and port name - * type if recognized - * - * @return - * master and representor flags are set in switch_info according to - * recognized parameters (if any). - */ -void -mlx5_sysfs_check_switch_info(bool device_dir, - struct mlx5_switch_info *switch_info) -{ - switch (switch_info->name_type) { - case MLX5_PHYS_PORT_NAME_TYPE_UNKNOWN: - /* - * Name is not recognized, assume the master, - * check the device directory presence. - */ - switch_info->master = device_dir; - break; - case MLX5_PHYS_PORT_NAME_TYPE_NOTSET: - /* - * Name is not set, this assumes the legacy naming - * schema for master, just check if there is - * a device directory. - */ - switch_info->master = device_dir; - break; - case MLX5_PHYS_PORT_NAME_TYPE_UPLINK: - /* New uplink naming schema recognized. */ - switch_info->master = 1; - break; - case MLX5_PHYS_PORT_NAME_TYPE_LEGACY: - /* Legacy representors naming schema. */ - switch_info->representor = !device_dir; - break; - case MLX5_PHYS_PORT_NAME_TYPE_PFVF: - /* New representors naming schema. */ - switch_info->representor = 1; - break; + priv = dev->data->dev_private; + if (!(priv->representor || priv->master)) { + rte_errno = EINVAL; + return NULL; } + return priv; } /** - * Extract port name, as a number, from sysfs or netlink information. + * DPDK callback to retrieve hairpin capabilities. * - * @param[in] port_name_in - * String representing the port name. - * @param[out] port_info_out - * Port information, including port name as a number and port name - * type if recognized + * @param dev + * Pointer to Ethernet device structure. + * @param[out] cap + * Storage for hairpin capability data. * * @return - * port_name field set according to recognized name format. + * 0 on success, a negative errno value otherwise and rte_errno is set. */ -void -mlx5_translate_port_name(const char *port_name_in, - struct mlx5_switch_info *port_info_out) +int +mlx5_hairpin_cap_get(struct rte_eth_dev *dev, + struct rte_eth_hairpin_cap *cap) { - char pf_c1, pf_c2, vf_c1, vf_c2; - char *end; - int sc_items; + struct mlx5_priv *priv = dev->data->dev_private; - /* - * Check for port-name as a string of the form pf0vf0 - * (support kernel ver >= 5.0 or OFED ver >= 4.6). - */ - sc_items = sscanf(port_name_in, "%c%c%d%c%c%d", - &pf_c1, &pf_c2, &port_info_out->pf_num, - &vf_c1, &vf_c2, &port_info_out->port_name); - if (sc_items == 6 && - pf_c1 == 'p' && pf_c2 == 'f' && - vf_c1 == 'v' && vf_c2 == 'f') { - port_info_out->name_type = MLX5_PHYS_PORT_NAME_TYPE_PFVF; - return; - } - /* - * Check for port-name as a string of the form p0 - * (support kernel ver >= 5.0, or OFED ver >= 4.6). - */ - sc_items = sscanf(port_name_in, "%c%d", - &pf_c1, &port_info_out->port_name); - if (sc_items == 2 && pf_c1 == 'p') { - port_info_out->name_type = MLX5_PHYS_PORT_NAME_TYPE_UPLINK; - return; - } - /* Check for port-name as a number (support kernel ver < 5.0 */ - errno = 0; - port_info_out->port_name = strtol(port_name_in, &end, 0); - if (!errno && - (size_t)(end - port_name_in) == strlen(port_name_in)) { - port_info_out->name_type = MLX5_PHYS_PORT_NAME_TYPE_LEGACY; - return; + if (priv->sh->devx == 0) { + rte_errno = ENOTSUP; + return -rte_errno; } - port_info_out->name_type = MLX5_PHYS_PORT_NAME_TYPE_UNKNOWN; - return; + cap->max_nb_queues = UINT16_MAX; + cap->max_rx_2_tx = 1; + cap->max_tx_2_rx = 1; + cap->max_nb_desc = 8192; + return 0; }