From: Ophir Munk Date: Wed, 10 Jun 2020 09:32:29 +0000 (+0000) Subject: net/mlx5: move Linux-specific functions X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=1256805dd54d3e0debd95c0420ca7f211bb9407c;p=dpdk.git net/mlx5: move Linux-specific functions File mlx5_ethdev.c is partially moved to linux/mlx5_ethdev_os.c for functions which are Linux specific. Functions which are Linux agnostics remain in mlx5_ethdev.c file. Signed-off-by: Ophir Munk Acked-by: Matan Azrad --- diff --git a/drivers/net/mlx5/Makefile b/drivers/net/mlx5/Makefile index 84fc9cca05..fada6fb6a2 100644 --- a/drivers/net/mlx5/Makefile +++ b/drivers/net/mlx5/Makefile @@ -33,6 +33,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_mp.c SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_utils.c SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += linux/mlx5_socket.c SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += linux/mlx5_os.c +SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += linux/mlx5_ethdev_os.c # Basic CFLAGS. CFLAGS += -O3 diff --git a/drivers/net/mlx5/linux/meson.build b/drivers/net/mlx5/linux/meson.build index f8369ccd67..ad908c4473 100644 --- a/drivers/net/mlx5/linux/meson.build +++ b/drivers/net/mlx5/linux/meson.build @@ -5,5 +5,6 @@ includes += include_directories('.') sources += files( 'mlx5_socket.c', 'mlx5_os.c', + 'mlx5_ethdev_os.c', ) diff --git a/drivers/net/mlx5/linux/mlx5_ethdev_os.c b/drivers/net/mlx5/linux/mlx5_ethdev_os.c new file mode 100644 index 0000000000..ab47cb5318 --- /dev/null +++ b/drivers/net/mlx5/linux/mlx5_ethdev_os.c @@ -0,0 +1,1270 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright 2015 6WIND S.A. + * Copyright 2015 Mellanox Technologies, Ltd + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include "mlx5.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[]; +}; + +/* The kernel values can be found in /include/uapi/linux/ethtool.h */ +#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 +#ifndef HAVE_ETHTOOL_LINK_MODE_200G +#define ETHTOOL_LINK_MODE_200000baseKR4_Full_BIT 62 +#define ETHTOOL_LINK_MODE_200000baseSR4_Full_BIT 63 +#define ETHTOOL_LINK_MODE_200000baseLR4_ER4_FR4_Full_BIT 0 /* 64 - 64 */ +#define ETHTOOL_LINK_MODE_200000baseDR4_Full_BIT 1 /* 65 - 64 */ +#define ETHTOOL_LINK_MODE_200000baseCR4_Full_BIT 2 /* 66 - 64 */ +#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] = ""; + + MLX5_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; + + MLX5_ASSERT(priv); + MLX5_ASSERT(priv->sh); + ifindex = mlx5_ifindex(dev); + 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; +} + +/** + * 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. + */ +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); +} + +/** + * Get device current raw clock counter + * + * @param dev + * Pointer to Ethernet device structure. + * @param[out] time + * Current raw clock counter of the device. + * + * @return + * 0 if the clock has correctly been read + * The value of errno in case of error + */ +int +mlx5_read_clock(struct rte_eth_dev *dev, uint64_t *clock) +{ + struct mlx5_priv *priv = dev->data->dev_private; + struct ibv_context *ctx = priv->sh->ctx; + struct ibv_values_ex values; + int err = 0; + + values.comp_mask = IBV_VALUES_MASK_RAW_CLOCK; + err = mlx5_glue->query_rt_values_ex(ctx, &values); + if (err != 0) { + DRV_LOG(WARNING, "Could not query the clock !"); + return err; + } + *clock = values.raw_clock.tv_nsec; + return 0; +} + +/** + * 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; + MLX5_ASSERT(priv->representor); + MLX5_ETH_FOREACH_DEV(port_id, priv->pci_dev) { + struct mlx5_priv *opriv = + rte_eth_devices[port_id].data->dev_private; + if (opriv && + opriv->master && + opriv->domain_id == domain_id && + opriv->sh == priv->sh) + return &rte_eth_devices[port_id]; + } + return NULL; +} + +/** + * DPDK callback to retrieve physical link information. + * + * @param dev + * Pointer to Ethernet device structure. + * @param[out] link + * Storage for current link status. + * + * @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) +{ + 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; + 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)); + 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 *)&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; +} + +/** + * Retrieve physical link information (unlocked version using new ioctl). + * + * @param dev + * Pointer to Ethernet device structure. + * @param[out] link + * Storage for current link status. + * + * @return + * 0 on success, a negative errno value otherwise and rte_errno is set. + */ +static int +mlx5_link_update_unlocked_gs(struct rte_eth_dev *dev, + struct rte_eth_link *link) + +{ + 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; + + 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 == UINT32_MAX) ? ETH_SPEED_NUM_NONE : + 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; + if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_200000baseKR4_Full_BIT) | + MLX5_BITSHIFT(ETHTOOL_LINK_MODE_200000baseSR4_Full_BIT))) + priv->link_speed_capa |= ETH_LINK_SPEED_200G; + + sc = ecmd->link_mode_masks[2] | + ((uint64_t)ecmd->link_mode_masks[3] << 32); + if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_200000baseCR4_Full_BIT) | + MLX5_BITSHIFT + (ETHTOOL_LINK_MODE_200000baseLR4_ER4_FR4_Full_BIT) | + MLX5_BITSHIFT(ETHTOOL_LINK_MODE_200000baseDR4_Full_BIT))) + priv->link_speed_capa |= ETH_LINK_SPEED_200G; + 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); + int retry = MLX5_GET_LINK_STATUS_RETRY_COUNT; + + do { + ret = mlx5_link_update_unlocked_gs(dev, &dev_link); + if (ret == -ENOTSUP) + ret = mlx5_link_update_unlocked_gset(dev, &dev_link); + if (ret == 0) + break; + /* Handle wait to complete situation. */ + if ((wait_to_complete || retry) && 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 || retry-- > 0); + ret = !!memcmp(&dev->data->dev_link, &dev_link, + sizeof(struct rte_eth_link)); + dev->data->dev_link = dev_link; + return ret; +} + +/** + * 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; +} + +/** + * Handle asynchronous removal event for entire multiport device. + * + * @param sh + * Infiniband device shared context. + */ +static void +mlx5_dev_interrupt_device_fatal(struct mlx5_dev_ctx_shared *sh) +{ + uint32_t i; + + for (i = 0; i < sh->max_port; ++i) { + struct rte_eth_dev *dev; + + if (sh->port[i].ih_port_id >= RTE_MAX_ETHPORTS) { + /* + * Or not existing port either no + * handler installed for this port. + */ + continue; + } + dev = &rte_eth_devices[sh->port[i].ih_port_id]; + MLX5_ASSERT(dev); + if (dev->data->dev_conf.intr_conf.rmv) + _rte_eth_dev_callback_process + (dev, RTE_ETH_EVENT_INTR_RMV, NULL); + } +} + +/** + * 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_dev_ctx_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; + if (!tmp && event.event_type == IBV_EVENT_DEVICE_FATAL) { + /* + * The DEVICE_FATAL event is called once for + * entire device without port specifying. + * We should notify all existing ports. + */ + mlx5_glue->ack_async_event(&event); + mlx5_dev_interrupt_device_fatal(sh); + continue; + } + MLX5_ASSERT(tmp && (tmp <= sh->max_port)); + if (!tmp) { + /* Unsupported device level event. */ + mlx5_glue->ack_async_event(&event); + DRV_LOG(DEBUG, + "unsupported common event (type %d)", + event.event_type); + continue; + } + if (tmp > sh->max_port) { + /* Invalid IB port index. */ + mlx5_glue->ack_async_event(&event); + DRV_LOG(DEBUG, + "cannot handle an event (type %d)" + "due to invalid IB port index (%u)", + event.event_type, tmp); + continue; + } + if (sh->port[tmp - 1].ih_port_id >= RTE_MAX_ETHPORTS) { + /* No handler installed. */ + mlx5_glue->ack_async_event(&event); + DRV_LOG(DEBUG, + "cannot handle an event (type %d)" + "due to no handler installed for port %u", + event.event_type, tmp); + continue; + } + /* Retrieve ethernet device descriptor. */ + tmp = sh->port[tmp - 1].ih_port_id; + dev = &rte_eth_devices[tmp]; + MLX5_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; + } + DRV_LOG(DEBUG, + "port %u cannot handle an unknown event (type %d)", + dev->data->port_id, event.event_type); + mlx5_glue->ack_async_event(&event); + } +} + +/* + * Unregister callback handler safely. The handler may be active + * while we are trying to unregister it, in this case code -EAGAIN + * is returned by rte_intr_callback_unregister(). This routine checks + * the return code and tries to unregister handler again. + * + * @param handle + * interrupt handle + * @param cb_fn + * pointer to callback routine + * @cb_arg + * opaque callback parameter + */ +void +mlx5_intr_callback_unregister(const struct rte_intr_handle *handle, + rte_intr_callback_fn cb_fn, void *cb_arg) +{ + /* + * Try to reduce timeout management overhead by not calling + * the timer related routines on the first iteration. If the + * unregistering succeeds on first call there will be no + * timer calls at all. + */ + uint64_t twait = 0; + uint64_t start = 0; + + do { + int ret; + + ret = rte_intr_callback_unregister(handle, cb_fn, cb_arg); + if (ret >= 0) + return; + if (ret != -EAGAIN) { + DRV_LOG(INFO, "failed to unregister interrupt" + " handler (error: %d)", ret); + MLX5_ASSERT(false); + return; + } + if (twait) { + struct timespec onems; + + /* Wait one millisecond and try again. */ + onems.tv_sec = 0; + onems.tv_nsec = NS_PER_S / MS_PER_S; + nanosleep(&onems, 0); + /* Check whether one second elapsed. */ + if ((rte_get_timer_cycles() - start) <= twait) + continue; + } else { + /* + * We get the amount of timer ticks for one second. + * If this amount elapsed it means we spent one + * second in waiting. This branch is executed once + * on first iteration. + */ + twait = rte_get_timer_hz(); + MLX5_ASSERT(twait); + } + /* + * Timeout elapsed, show message (once a second) and retry. + * We have no other acceptable option here, if we ignore + * the unregistering return code the handler will not + * be unregistered, fd will be closed and we may get the + * crush. Hanging and messaging in the loop seems not to be + * the worst choice. + */ + DRV_LOG(INFO, "Retrying to unregister interrupt handler"); + start = rte_get_timer_cycles(); + } while (true); +} + +/** + * Handle DEVX interrupts from the NIC. + * This function is probably called from the DPDK host thread. + * + * @param cb_arg + * Callback argument. + */ +void +mlx5_dev_interrupt_handler_devx(void *cb_arg) +{ +#ifndef HAVE_IBV_DEVX_ASYNC + (void)cb_arg; + return; +#else + struct mlx5_dev_ctx_shared *sh = cb_arg; + union { + struct mlx5dv_devx_async_cmd_hdr cmd_resp; + uint8_t buf[MLX5_ST_SZ_BYTES(query_flow_counter_out) + + MLX5_ST_SZ_BYTES(traffic_counter) + + sizeof(struct mlx5dv_devx_async_cmd_hdr)]; + } out; + uint8_t *buf = out.buf + sizeof(out.cmd_resp); + + while (!mlx5_glue->devx_get_async_cmd_comp(sh->devx_comp, + &out.cmd_resp, + sizeof(out.buf))) + mlx5_flow_async_pool_query_handle + (sh, (uint64_t)out.cmd_resp.wr_id, + mlx5_devx_get_out_command_status(buf)); +#endif /* HAVE_IBV_DEVX_ASYNC */ +} + +/** + * 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); +} + +/** + * 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 switch information associated with network interface. + * + * @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; + MLX5_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 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; + } +} + +/** + * DPDK callback to retrieve plug-in module EEPROM information (type and size). + * + * @param dev + * Pointer to Ethernet device structure. + * @param[out] modinfo + * Storage for plug-in module EEPROM information. + * + * @return + * 0 on success, a negative errno value otherwise and rte_errno is set. + */ +int +mlx5_get_module_info(struct rte_eth_dev *dev, + struct rte_eth_dev_module_info *modinfo) +{ + struct ethtool_modinfo info = { + .cmd = ETHTOOL_GMODULEINFO, + }; + struct ifreq ifr = (struct ifreq) { + .ifr_data = (void *)&info, + }; + int ret = 0; + + if (!dev || !modinfo) { + DRV_LOG(WARNING, "missing argument, cannot get module info"); + rte_errno = EINVAL; + return -rte_errno; + } + ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr); + if (ret) { + DRV_LOG(WARNING, "port %u ioctl(SIOCETHTOOL) failed: %s", + dev->data->port_id, strerror(rte_errno)); + return ret; + } + modinfo->type = info.type; + modinfo->eeprom_len = info.eeprom_len; + return ret; +} + +/** + * DPDK callback to retrieve plug-in module EEPROM data. + * + * @param dev + * Pointer to Ethernet device structure. + * @param[out] info + * Storage for plug-in module EEPROM data. + * + * @return + * 0 on success, a negative errno value otherwise and rte_errno is set. + */ +int mlx5_get_module_eeprom(struct rte_eth_dev *dev, + struct rte_dev_eeprom_info *info) +{ + struct ethtool_eeprom *eeprom; + struct ifreq ifr; + int ret = 0; + + if (!dev || !info) { + DRV_LOG(WARNING, "missing argument, cannot get module eeprom"); + rte_errno = EINVAL; + return -rte_errno; + } + eeprom = rte_calloc(__func__, 1, + (sizeof(struct ethtool_eeprom) + info->length), 0); + if (!eeprom) { + DRV_LOG(WARNING, "port %u cannot allocate memory for " + "eeprom data", dev->data->port_id); + rte_errno = ENOMEM; + return -rte_errno; + } + eeprom->cmd = ETHTOOL_GMODULEEEPROM; + eeprom->offset = info->offset; + eeprom->len = info->length; + ifr = (struct ifreq) { + .ifr_data = (void *)eeprom, + }; + ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr); + if (ret) + DRV_LOG(WARNING, "port %u ioctl(SIOCETHTOOL) failed: %s", + dev->data->port_id, strerror(rte_errno)); + else + rte_memcpy(info->data, eeprom->data, info->length); + rte_free(eeprom); + return ret; +} diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h index abe5099d58..8aa8510430 100644 --- a/drivers/net/mlx5/mlx5.h +++ b/drivers/net/mlx5/mlx5.h @@ -711,6 +711,18 @@ int mlx5_init_once(void); /* mlx5_ethdev.c */ +int mlx5_dev_configure(struct rte_eth_dev *dev); +int mlx5_fw_version_get(struct rte_eth_dev *dev, char *fw_ver, + size_t fw_size); +int mlx5_dev_infos_get(struct rte_eth_dev *dev, + struct rte_eth_dev_info *info); +const uint32_t *mlx5_dev_supported_ptypes_get(struct rte_eth_dev *dev); +int mlx5_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu); +int mlx5_hairpin_cap_get(struct rte_eth_dev *dev, + struct rte_eth_hairpin_cap *cap); + +/* mlx5_ethdev_os.c */ + int mlx5_get_ifname(const struct rte_eth_dev *dev, char (*ifname)[IF_NAMESIZE]); int mlx5_get_master_ifname(const char *ibdev_path, char (*ifname)[IF_NAMESIZE]); unsigned int mlx5_ifindex(const struct rte_eth_dev *dev); @@ -718,14 +730,10 @@ int mlx5_ifreq(const struct rte_eth_dev *dev, int req, struct ifreq *ifr); int mlx5_get_mtu(struct rte_eth_dev *dev, uint16_t *mtu); int mlx5_set_flags(struct rte_eth_dev *dev, unsigned int keep, unsigned int flags); -int mlx5_dev_configure(struct rte_eth_dev *dev); -int mlx5_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info); +int mlx5_set_mtu(struct rte_eth_dev *dev, uint16_t mtu); int mlx5_read_clock(struct rte_eth_dev *dev, uint64_t *clock); -int mlx5_fw_version_get(struct rte_eth_dev *dev, char *fw_ver, size_t fw_size); -const uint32_t *mlx5_dev_supported_ptypes_get(struct rte_eth_dev *dev); int mlx5_link_update(struct rte_eth_dev *dev, int wait_to_complete); int mlx5_force_link_status_change(struct rte_eth_dev *dev, int status); -int mlx5_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu); int mlx5_dev_get_flow_ctrl(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf); int mlx5_dev_set_flow_ctrl(struct rte_eth_dev *dev, @@ -754,8 +762,6 @@ int mlx5_get_module_info(struct rte_eth_dev *dev, struct rte_eth_dev_module_info *modinfo); int mlx5_get_module_eeprom(struct rte_eth_dev *dev, struct rte_dev_eeprom_info *info); -int mlx5_hairpin_cap_get(struct rte_eth_dev *dev, - struct rte_eth_hairpin_cap *cap); int mlx5_dev_configure_rss_reta(struct rte_eth_dev *dev); /* mlx5_mac.c */ diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c index 6b8b303228..6b4efcdcea 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 @@ -35,219 +21,8 @@ #include #include -#include -#include -#include - -#include "mlx5.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[]; -}; - -/* The kernel values can be found in /include/uapi/linux/ethtool.h */ -#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 -#ifndef HAVE_ETHTOOL_LINK_MODE_200G -#define ETHTOOL_LINK_MODE_200000baseKR4_Full_BIT 62 -#define ETHTOOL_LINK_MODE_200000baseSR4_Full_BIT 63 -#define ETHTOOL_LINK_MODE_200000baseLR4_ER4_FR4_Full_BIT 0 /* 64 - 64 */ -#define ETHTOOL_LINK_MODE_200000baseDR4_Full_BIT 1 /* 65 - 64 */ -#define ETHTOOL_LINK_MODE_200000baseCR4_Full_BIT 2 /* 66 - 64 */ -#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] = ""; - - MLX5_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; - - MLX5_ASSERT(priv); - MLX5_ASSERT(priv->sh); - ifindex = mlx5_ifindex(dev); - 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_autoconf.h" /** * Get the interface index from device name. @@ -272,112 +47,6 @@ mlx5_ifindex(const struct rte_eth_dev *dev) 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. * @@ -690,36 +359,6 @@ mlx5_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info) return 0; } -/** - * Get device current raw clock counter - * - * @param dev - * Pointer to Ethernet device structure. - * @param[out] time - * Current raw clock counter of the device. - * - * @return - * 0 if the clock has correctly been read - * The value of errno in case of error - */ -int -mlx5_read_clock(struct rte_eth_dev *dev, uint64_t *clock) -{ - struct mlx5_priv *priv = dev->data->dev_private; - struct ibv_context *ctx = priv->sh->ctx; - struct ibv_values_ex values; - int err = 0; - - values.comp_mask = IBV_VALUES_MASK_RAW_CLOCK; - err = mlx5_glue->query_rt_values_ex(ctx, &values); - if (err != 0) { - DRV_LOG(WARNING, "Could not query the clock !"); - return err; - } - *clock = values.raw_clock.tv_nsec; - return 0; -} - /** * Get firmware version of a device. * @@ -733,7 +372,8 @@ mlx5_read_clock(struct rte_eth_dev *dev, uint64_t *clock) * @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 mlx5_dev_attr *attr = &priv->sh->device_attr; @@ -783,330 +423,6 @@ mlx5_dev_supported_ptypes_get(struct rte_eth_dev *dev) return NULL; } -/** - * 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; - MLX5_ASSERT(priv->representor); - MLX5_ETH_FOREACH_DEV(port_id, priv->pci_dev) { - struct mlx5_priv *opriv = - rte_eth_devices[port_id].data->dev_private; - if (opriv && - opriv->master && - opriv->domain_id == domain_id && - opriv->sh == priv->sh) - return &rte_eth_devices[port_id]; - } - return NULL; -} - -/** - * DPDK callback to retrieve physical link information. - * - * @param dev - * Pointer to Ethernet device structure. - * @param[out] link - * Storage for current link status. - * - * @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) -{ - 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; - 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)); - 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 *)&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; -} - -/** - * Retrieve physical link information (unlocked version using new ioctl). - * - * @param dev - * Pointer to Ethernet device structure. - * @param[out] link - * Storage for current link status. - * - * @return - * 0 on success, a negative errno value otherwise and rte_errno is set. - */ -static int -mlx5_link_update_unlocked_gs(struct rte_eth_dev *dev, - struct rte_eth_link *link) - -{ - 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; - - 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 == UINT32_MAX) ? ETH_SPEED_NUM_NONE : - 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; - if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_200000baseKR4_Full_BIT) | - MLX5_BITSHIFT(ETHTOOL_LINK_MODE_200000baseSR4_Full_BIT))) - priv->link_speed_capa |= ETH_LINK_SPEED_200G; - - sc = ecmd->link_mode_masks[2] | - ((uint64_t)ecmd->link_mode_masks[3] << 32); - if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_200000baseCR4_Full_BIT) | - MLX5_BITSHIFT( - ETHTOOL_LINK_MODE_200000baseLR4_ER4_FR4_Full_BIT) | - MLX5_BITSHIFT(ETHTOOL_LINK_MODE_200000baseDR4_Full_BIT))) - priv->link_speed_capa |= ETH_LINK_SPEED_200G; - 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); - int retry = MLX5_GET_LINK_STATUS_RETRY_COUNT; - - do { - ret = mlx5_link_update_unlocked_gs(dev, &dev_link); - if (ret == -ENOTSUP) - ret = mlx5_link_update_unlocked_gset(dev, &dev_link); - if (ret == 0) - break; - /* Handle wait to complete situation. */ - if ((wait_to_complete || retry) && 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 || retry-- > 0); - 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. * @@ -1145,335 +461,6 @@ mlx5_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu) 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; -} - -/** - * Handle asynchronous removal event for entire multiport device. - * - * @param sh - * Infiniband device shared context. - */ -static void -mlx5_dev_interrupt_device_fatal(struct mlx5_dev_ctx_shared *sh) -{ - uint32_t i; - - for (i = 0; i < sh->max_port; ++i) { - struct rte_eth_dev *dev; - - if (sh->port[i].ih_port_id >= RTE_MAX_ETHPORTS) { - /* - * Or not existing port either no - * handler installed for this port. - */ - continue; - } - dev = &rte_eth_devices[sh->port[i].ih_port_id]; - MLX5_ASSERT(dev); - if (dev->data->dev_conf.intr_conf.rmv) - _rte_eth_dev_callback_process - (dev, RTE_ETH_EVENT_INTR_RMV, NULL); - } -} - -/** - * 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_dev_ctx_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; - if (!tmp && event.event_type == IBV_EVENT_DEVICE_FATAL) { - /* - * The DEVICE_FATAL event is called once for - * entire device without port specifying. - * We should notify all existing ports. - */ - mlx5_glue->ack_async_event(&event); - mlx5_dev_interrupt_device_fatal(sh); - continue; - } - MLX5_ASSERT(tmp && (tmp <= sh->max_port)); - if (!tmp) { - /* Unsupported devive level event. */ - mlx5_glue->ack_async_event(&event); - DRV_LOG(DEBUG, - "unsupported common event (type %d)", - event.event_type); - continue; - } - if (tmp > sh->max_port) { - /* Invalid IB port index. */ - mlx5_glue->ack_async_event(&event); - DRV_LOG(DEBUG, - "cannot handle an event (type %d)" - "due to invalid IB port index (%u)", - event.event_type, tmp); - continue; - } - if (sh->port[tmp - 1].ih_port_id >= RTE_MAX_ETHPORTS) { - /* No handler installed. */ - mlx5_glue->ack_async_event(&event); - DRV_LOG(DEBUG, - "cannot handle an event (type %d)" - "due to no handler installed for port %u", - event.event_type, tmp); - continue; - } - /* Retrieve ethernet device descriptor. */ - tmp = sh->port[tmp - 1].ih_port_id; - dev = &rte_eth_devices[tmp]; - MLX5_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; - } - DRV_LOG(DEBUG, - "port %u cannot handle an unknown event (type %d)", - dev->data->port_id, event.event_type); - mlx5_glue->ack_async_event(&event); - } -} - -/* - * Unregister callback handler safely. The handler may be active - * while we are trying to unregister it, in this case code -EAGAIN - * is returned by rte_intr_callback_unregister(). This routine checks - * the return code and tries to unregister handler again. - * - * @param handle - * interrupt handle - * @param cb_fn - * pointer to callback routine - * @cb_arg - * opaque callback parameter - */ -void -mlx5_intr_callback_unregister(const struct rte_intr_handle *handle, - rte_intr_callback_fn cb_fn, void *cb_arg) -{ - /* - * Try to reduce timeout management overhead by not calling - * the timer related routines on the first iteration. If the - * unregistering succeeds on first call there will be no - * timer calls at all. - */ - uint64_t twait = 0; - uint64_t start = 0; - - do { - int ret; - - ret = rte_intr_callback_unregister(handle, cb_fn, cb_arg); - if (ret >= 0) - return; - if (ret != -EAGAIN) { - DRV_LOG(INFO, "failed to unregister interrupt" - " handler (error: %d)", ret); - MLX5_ASSERT(false); - return; - } - if (twait) { - struct timespec onems; - - /* Wait one millisecond and try again. */ - onems.tv_sec = 0; - onems.tv_nsec = NS_PER_S / MS_PER_S; - nanosleep(&onems, 0); - /* Check whether one second elapsed. */ - if ((rte_get_timer_cycles() - start) <= twait) - continue; - } else { - /* - * We get the amount of timer ticks for one second. - * If this amount elapsed it means we spent one - * second in waiting. This branch is executed once - * on first iteration. - */ - twait = rte_get_timer_hz(); - MLX5_ASSERT(twait); - } - /* - * Timeout elapsed, show message (once a second) and retry. - * We have no other acceptable option here, if we ignore - * the unregistering return code the handler will not - * be unregistered, fd will be closed and we may get the - * crush. Hanging and messaging in the loop seems not to be - * the worst choice. - */ - DRV_LOG(INFO, "Retrying to unregister interrupt handler"); - start = rte_get_timer_cycles(); - } while (true); -} - -/** - * Handle DEVX interrupts from the NIC. - * This function is probably called from the DPDK host thread. - * - * @param cb_arg - * Callback argument. - */ -void -mlx5_dev_interrupt_handler_devx(void *cb_arg) -{ -#ifndef HAVE_IBV_DEVX_ASYNC - (void)cb_arg; - return; -#else - struct mlx5_dev_ctx_shared *sh = cb_arg; - union { - struct mlx5dv_devx_async_cmd_hdr cmd_resp; - uint8_t buf[MLX5_ST_SZ_BYTES(query_flow_counter_out) + - MLX5_ST_SZ_BYTES(traffic_counter) + - sizeof(struct mlx5dv_devx_async_cmd_hdr)]; - } out; - uint8_t *buf = out.buf + sizeof(out.cmd_resp); - - while (!mlx5_glue->devx_get_async_cmd_comp(sh->devx_comp, - &out.cmd_resp, - sizeof(out.buf))) - mlx5_flow_async_pool_query_handle - (sh, (uint64_t)out.cmd_resp.wr_id, - mlx5_devx_get_out_command_status(buf)); -#endif /* HAVE_IBV_DEVX_ASYNC */ -} - -/** - * 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 RX function to use. * @@ -1499,26 +486,6 @@ mlx5_select_rx_function(struct rte_eth_dev *dev) return rx_pkt_burst; } -/** - * 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 the E-Switch parameters by port id. * @@ -1587,219 +554,6 @@ mlx5_dev_to_eswitch_info(struct rte_eth_dev *dev) return priv; } -/** - * Get switch information associated with network interface. - * - * @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; - MLX5_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 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; - } -} - -/** - * DPDK callback to retrieve plug-in module EEPROM information (type and size). - * - * @param dev - * Pointer to Ethernet device structure. - * @param[out] modinfo - * Storage for plug-in module EEPROM information. - * - * @return - * 0 on success, a negative errno value otherwise and rte_errno is set. - */ -int -mlx5_get_module_info(struct rte_eth_dev *dev, - struct rte_eth_dev_module_info *modinfo) -{ - struct ethtool_modinfo info = { - .cmd = ETHTOOL_GMODULEINFO, - }; - struct ifreq ifr = (struct ifreq) { - .ifr_data = (void *)&info, - }; - int ret = 0; - - if (!dev || !modinfo) { - DRV_LOG(WARNING, "missing argument, cannot get module info"); - rte_errno = EINVAL; - return -rte_errno; - } - ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr); - if (ret) { - DRV_LOG(WARNING, "port %u ioctl(SIOCETHTOOL) failed: %s", - dev->data->port_id, strerror(rte_errno)); - return ret; - } - modinfo->type = info.type; - modinfo->eeprom_len = info.eeprom_len; - return ret; -} - -/** - * DPDK callback to retrieve plug-in module EEPROM data. - * - * @param dev - * Pointer to Ethernet device structure. - * @param[out] info - * Storage for plug-in module EEPROM data. - * - * @return - * 0 on success, a negative errno value otherwise and rte_errno is set. - */ -int mlx5_get_module_eeprom(struct rte_eth_dev *dev, - struct rte_dev_eeprom_info *info) -{ - struct ethtool_eeprom *eeprom; - struct ifreq ifr; - int ret = 0; - - if (!dev || !info) { - DRV_LOG(WARNING, "missing argument, cannot get module eeprom"); - rte_errno = EINVAL; - return -rte_errno; - } - eeprom = rte_calloc(__func__, 1, - (sizeof(struct ethtool_eeprom) + info->length), 0); - if (!eeprom) { - DRV_LOG(WARNING, "port %u cannot allocate memory for " - "eeprom data", dev->data->port_id); - rte_errno = ENOMEM; - return -rte_errno; - } - eeprom->cmd = ETHTOOL_GMODULEEEPROM; - eeprom->offset = info->offset; - eeprom->len = info->length; - ifr = (struct ifreq) { - .ifr_data = (void *)eeprom, - }; - ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr); - if (ret) - DRV_LOG(WARNING, "port %u ioctl(SIOCETHTOOL) failed: %s", - dev->data->port_id, strerror(rte_errno)); - else - rte_memcpy(info->data, eeprom->data, info->length); - rte_free(eeprom); - return ret; -} - /** * DPDK callback to retrieve hairpin capabilities. * @@ -1811,7 +565,8 @@ int mlx5_get_module_eeprom(struct rte_eth_dev *dev, * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ -int mlx5_hairpin_cap_get(struct rte_eth_dev *dev, +int +mlx5_hairpin_cap_get(struct rte_eth_dev *dev, struct rte_eth_hairpin_cap *cap) { struct mlx5_priv *priv = dev->data->dev_private;