X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fmlx5%2Fmlx5_ethdev.c;h=cefb45064eeae56765c913e721151475b4ee2eda;hb=50f95b23c9ba8237a7f376e2e90d4bfa04a3bab6;hp=205ce9c6b1cba2fc61a994dad6c6198a1d16d1c7;hpb=fc5b160f3ce7d8101fba0db1a3f2679953156afd;p=dpdk.git diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c index 205ce9c6b1..cefb45064e 100644 --- a/drivers/net/mlx5/mlx5_ethdev.c +++ b/drivers/net/mlx5/mlx5_ethdev.c @@ -1,550 +1,278 @@ -/*- - * BSD LICENSE - * - * Copyright 2015 6WIND S.A. - * Copyright 2015 Mellanox. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of 6WIND S.A. nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +/* 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 -/* DPDK headers don't like -pedantic. */ -#ifdef PEDANTIC -#pragma GCC diagnostic ignored "-Wpedantic" -#endif #include -#include +#include +#include #include #include #include -#include #include -#ifdef PEDANTIC -#pragma GCC diagnostic error "-Wpedantic" -#endif +#include +#include +#include + +#include -#include "mlx5.h" #include "mlx5_rxtx.h" -#include "mlx5_utils.h" +#include "mlx5_autoconf.h" /** - * Return private structure associated with an Ethernet device. + * Get the interface index from device name. * - * @param dev - * Pointer to Ethernet device structure. + * @param[in] dev + * Pointer to Ethernet device. * * @return - * Pointer to private structure. + * Nonzero interface index on success, zero otherwise and rte_errno is set. */ -struct priv * -mlx5_get_priv(struct rte_eth_dev *dev) +unsigned int +mlx5_ifindex(const struct rte_eth_dev *dev) { - struct mlx5_secondary_data *sd; + struct mlx5_priv *priv = dev->data->dev_private; + unsigned int ifindex; - if (!mlx5_is_secondary()) - return dev->data->dev_private; - sd = &mlx5_secondary_data[dev->data->port_id]; - return sd->data.dev_private; + MLX5_ASSERT(priv); + MLX5_ASSERT(priv->if_index); + ifindex = priv->if_index; + if (!ifindex) + rte_errno = ENXIO; + return ifindex; } /** - * Check if running as a secondary process. - * - * @return - * Nonzero if running as a secondary process. - */ -inline int -mlx5_is_secondary(void) -{ - return rte_eal_process_type() != RTE_PROC_PRIMARY; -} - -/** - * Get interface name from private structure. + * DPDK callback for Ethernet device configuration. * - * @param[in] priv - * Pointer to private structure. - * @param[out] ifname - * Interface name output buffer. + * @param dev + * Pointer to Ethernet device structure. * * @return - * 0 on success, -1 on failure and errno is set. + * 0 on success, a negative errno value otherwise and rte_errno is set. */ int -priv_get_ifname(const struct priv *priv, char (*ifname)[IF_NAMESIZE]) +mlx5_dev_configure(struct rte_eth_dev *dev) { - DIR *dir; - struct dirent *dent; - unsigned int dev_type = 0; - unsigned int dev_port_prev = ~0u; - char match[IF_NAMESIZE] = ""; - - { - MKSTR(path, "%s/device/net", priv->ctx->device->ibdev_path); + 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; + const uint8_t use_app_rss_key = + !!dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key; + int ret = 0; - dir = opendir(path); - if (dir == NULL) - return -1; + if (use_app_rss_key && + (dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key_len != + MLX5_RSS_HASH_KEY_LEN)) { + DRV_LOG(ERR, "port %u RSS key len must be %s Bytes long", + dev->data->port_id, RTE_STR(MLX5_RSS_HASH_KEY_LEN)); + rte_errno = EINVAL; + 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", - priv->ctx->device->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 == (priv->port - 1u)) - snprintf(match, sizeof(match), "%s", name); + priv->rss_conf.rss_key = + 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; } - closedir(dir); - if (match[0] == '\0') - return -1; - strncpy(*ifname, match, sizeof(*ifname)); - return 0; -} - -/** - * Read from sysfs entry. - * - * @param[in] priv - * Pointer to private structure. - * @param[in] entry - * Entry name relative to sysfs path. - * @param[out] buf - * Data output buffer. - * @param size - * Buffer size. - * - * @return - * 0 on success, -1 on failure and errno is set. - */ -static int -priv_sysfs_read(const struct priv *priv, const char *entry, - char *buf, size_t size) -{ - char ifname[IF_NAMESIZE]; - FILE *file; - int ret; - int err; - - if (priv_get_ifname(priv, &ifname)) - return -1; - - MKSTR(path, "%s/device/net/%s/%s", priv->ctx->device->ibdev_path, - ifname, entry); - file = fopen(path, "rb"); - if (file == NULL) - return -1; - ret = fread(buf, 1, size, file); - err = errno; - if (((size_t)ret < size) && (ferror(file))) - ret = -1; - else - ret = size; - fclose(file); - errno = err; - return ret; -} + if (dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) + dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH; -/** - * Write to sysfs entry. - * - * @param[in] priv - * Pointer to private structure. - * @param[in] entry - * Entry name relative to sysfs path. - * @param[in] buf - * Data buffer. - * @param size - * Buffer size. - * - * @return - * 0 on success, -1 on failure and errno is set. - */ -static int -priv_sysfs_write(const struct priv *priv, const char *entry, - char *buf, size_t size) -{ - char ifname[IF_NAMESIZE]; - FILE *file; - int ret; - int err; - - if (priv_get_ifname(priv, &ifname)) - return -1; - - MKSTR(path, "%s/device/net/%s/%s", priv->ctx->device->ibdev_path, - ifname, entry); - - file = fopen(path, "wb"); - if (file == NULL) - return -1; - ret = fwrite(buf, 1, size, file); - err = errno; - if (((size_t)ret < size) || (ferror(file))) - ret = -1; - else - ret = size; - fclose(file); - errno = err; - return ret; -} - -/** - * Get unsigned long sysfs property. - * - * @param priv - * Pointer to private structure. - * @param[in] name - * Entry name relative to sysfs path. - * @param[out] value - * Value output buffer. - * - * @return - * 0 on success, -1 on failure and errno is set. - */ -static int -priv_get_sysfs_ulong(struct priv *priv, const char *name, unsigned long *value) -{ - int ret; - unsigned long value_ret; - char value_str[32]; - - ret = priv_sysfs_read(priv, name, value_str, (sizeof(value_str) - 1)); - if (ret == -1) { - DEBUG("cannot read %s value from sysfs: %s", - name, strerror(errno)); - return -1; + memcpy(priv->rss_conf.rss_key, + use_app_rss_key ? + dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key : + rss_hash_default_key, + MLX5_RSS_HASH_KEY_LEN); + priv->rss_conf.rss_key_len = MLX5_RSS_HASH_KEY_LEN; + priv->rss_conf.rss_hf = dev->data->dev_conf.rx_adv_conf.rss_conf.rss_hf; + priv->rxqs = (void *)dev->data->rx_queues; + priv->txqs = (void *)dev->data->tx_queues; + if (txqs_n != priv->txqs_n) { + DRV_LOG(INFO, "port %u Tx queues number update: %u -> %u", + dev->data->port_id, priv->txqs_n, txqs_n); + priv->txqs_n = txqs_n; } - value_str[ret] = '\0'; - errno = 0; - value_ret = strtoul(value_str, NULL, 0); - if (errno) { - DEBUG("invalid %s value `%s': %s", name, value_str, - strerror(errno)); - return -1; + if (rxqs_n > priv->config.ind_table_max_size) { + DRV_LOG(ERR, "port %u cannot handle this many Rx queues (%u)", + dev->data->port_id, rxqs_n); + rte_errno = EINVAL; + return -rte_errno; } - *value = value_ret; - return 0; -} - -/** - * Set unsigned long sysfs property. - * - * @param priv - * Pointer to private structure. - * @param[in] name - * Entry name relative to sysfs path. - * @param value - * Value to set. - * - * @return - * 0 on success, -1 on failure and errno is set. - */ -static int -priv_set_sysfs_ulong(struct priv *priv, const char *name, unsigned long value) -{ - int ret; - MKSTR(value_str, "%lu", value); - - ret = priv_sysfs_write(priv, name, value_str, (sizeof(value_str) - 1)); - if (ret == -1) { - DEBUG("cannot write %s `%s' (%lu) to sysfs: %s", - name, value_str, value, strerror(errno)); - return -1; + 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; } - return 0; -} - -/** - * Perform ifreq ioctl() on associated Ethernet device. - * - * @param[in] priv - * Pointer to private structure. - * @param req - * Request number to pass to ioctl(). - * @param[out] ifr - * Interface request structure output buffer. - * - * @return - * 0 on success, -1 on failure and errno is set. - */ -int -priv_ifreq(const struct priv *priv, int req, struct ifreq *ifr) -{ - int sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP); - int ret = -1; - - if (sock == -1) + priv->skip_default_rss_reta = 0; + ret = mlx5_proc_priv_init(dev); + if (ret) return ret; - if (priv_get_ifname(priv, &ifr->ifr_name) == 0) - ret = ioctl(sock, req, ifr); - close(sock); - return ret; -} - -/** - * Return the number of active VFs for the current device. - * - * @param[in] priv - * Pointer to private structure. - * @param[out] num_vfs - * Number of active VFs. - * - * @return - * 0 on success, -1 on failure and errno is set. - */ -int -priv_get_num_vfs(struct priv *priv, uint16_t *num_vfs) -{ - /* The sysfs entry name depends on the operating system. */ - const char **name = (const char *[]){ - "device/sriov_numvfs", - "device/mlx5_num_vfs", - NULL, - }; - int ret; - - do { - unsigned long ulong_num_vfs; - - ret = priv_get_sysfs_ulong(priv, *name, &ulong_num_vfs); - if (!ret) - *num_vfs = ulong_num_vfs; - } while (*(++name) && ret); - return ret; -} - -/** - * Get device MTU. - * - * @param priv - * Pointer to private structure. - * @param[out] mtu - * MTU value output buffer. - * - * @return - * 0 on success, -1 on failure and errno is set. - */ -int -priv_get_mtu(struct priv *priv, uint16_t *mtu) -{ - unsigned long ulong_mtu; - - if (priv_get_sysfs_ulong(priv, "mtu", &ulong_mtu) == -1) - return -1; - *mtu = ulong_mtu; return 0; } /** - * Set device MTU. - * - * @param priv - * Pointer to private structure. - * @param mtu - * MTU value to set. - * - * @return - * 0 on success, -1 on failure and errno is set. - */ -static int -priv_set_mtu(struct priv *priv, uint16_t mtu) -{ - uint16_t new_mtu; - - if (priv_set_sysfs_ulong(priv, "mtu", mtu) || - priv_get_mtu(priv, &new_mtu)) - return -1; - if (new_mtu == mtu) - return 0; - errno = EINVAL; - return -1; -} - -/** - * Set device flags. - * - * @param priv - * Pointer to private structure. - * @param keep - * Bitmask for flags that must remain untouched. - * @param flags - * Bitmask for flags to modify. - * - * @return - * 0 on success, -1 on failure and errno is set. - */ -int -priv_set_flags(struct priv *priv, unsigned int keep, unsigned int flags) -{ - unsigned long tmp; - - if (priv_get_sysfs_ulong(priv, "flags", &tmp) == -1) - return -1; - tmp &= keep; - tmp |= (flags & (~keep)); - return priv_set_sysfs_ulong(priv, "flags", tmp); -} - -/** - * Ethernet device configuration. - * - * Prepare the driver for a given number of TX and RX queues. + * Configure default RSS reta. * * @param dev * Pointer to Ethernet device structure. * * @return - * 0 on success, errno value on failure. + * 0 on success, a negative errno value otherwise and rte_errno is set. */ -static int -dev_configure(struct rte_eth_dev *dev) +int +mlx5_dev_configure_rss_reta(struct rte_eth_dev *dev) { - struct priv *priv = dev->data->dev_private; + 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; + int ret = 0; + unsigned int *rss_queue_arr = NULL; + unsigned int rss_queue_n = 0; - priv->rss_hf = dev->data->dev_conf.rx_adv_conf.rss_conf.rss_hf; - priv->rxqs = (void *)dev->data->rx_queues; - priv->txqs = (void *)dev->data->tx_queues; - if (txqs_n != priv->txqs_n) { - INFO("%p: TX queues number update: %u -> %u", - (void *)dev, priv->txqs_n, txqs_n); - priv->txqs_n = txqs_n; + 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; } - if (rxqs_n > priv->ind_table_max_size) { - ERROR("cannot handle this many RX queues (%u)", rxqs_n); - return EINVAL; + 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; } - if (rxqs_n == priv->rxqs_n) - return 0; - INFO("%p: RX queues number update: %u -> %u", - (void *)dev, priv->rxqs_n, rxqs_n); + 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->ind_table_max_size : - rxqs_n)); - if (priv_rss_reta_index_resize(priv, reta_idx_n)) - return ENOMEM; - /* 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. */ + /* + * 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) { + 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. + */ 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; } - return 0; + mlx5_free(rss_queue_arr); + return ret; } /** - * DPDK callback for Ethernet device configuration. + * Sets default tuning parameters. * * @param dev - * Pointer to Ethernet device structure. - * - * @return - * 0 on success, negative errno value on failure. + * Pointer to Ethernet device. + * @param[out] info + * Info structure output buffer. */ -int -mlx5_dev_configure(struct rte_eth_dev *dev) -{ - struct priv *priv = dev->data->dev_private; - int ret; - - if (mlx5_is_secondary()) - return -E_RTE_SECONDARY; +static void +mlx5_set_default_params(struct rte_eth_dev *dev, struct rte_eth_dev_info *info) +{ + struct mlx5_priv *priv = dev->data->dev_private; + + /* Minimum CPU utilization. */ + info->default_rxportconf.ring_size = 256; + info->default_txportconf.ring_size = 256; + 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 || + dev->data->nb_tx_queues > 2) { + /* Max Throughput. */ + info->default_rxportconf.ring_size = 2048; + info->default_txportconf.ring_size = 2048; + } + } else { + info->default_rxportconf.nb_queues = 8; + info->default_txportconf.nb_queues = 8; + if (dev->data->nb_rx_queues > 2 || + dev->data->nb_tx_queues > 2) { + /* Max Throughput. */ + info->default_rxportconf.ring_size = 4096; + info->default_txportconf.ring_size = 4096; + } + } +} - priv_lock(priv); - ret = dev_configure(dev); - assert(ret >= 0); - priv_unlock(priv); - return -ret; +/** + * 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; } /** @@ -555,860 +283,304 @@ mlx5_dev_configure(struct rte_eth_dev *dev) * @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 priv *priv = mlx5_get_priv(dev); + struct mlx5_priv *priv = dev->data->dev_private; + struct mlx5_dev_config *config = &priv->config; unsigned int max; - char ifname[IF_NAMESIZE]; - priv_lock(priv); /* 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 = ((priv->device_attr.max_cq > priv->device_attr.max_qp) ? - priv->device_attr.max_qp : priv->device_attr.max_cq); - /* 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 = RTE_DIM(priv->mac); - info->rx_offload_capa = - (priv->hw_csum ? - (DEV_RX_OFFLOAD_IPV4_CKSUM | - DEV_RX_OFFLOAD_UDP_CKSUM | - DEV_RX_OFFLOAD_TCP_CKSUM) : - 0) | - (priv->hw_vlan_strip ? DEV_RX_OFFLOAD_VLAN_STRIP : 0); - if (!priv->mps) - info->tx_offload_capa = DEV_TX_OFFLOAD_VLAN_INSERT; - if (priv->hw_csum) - info->tx_offload_capa |= - (DEV_TX_OFFLOAD_IPV4_CKSUM | - DEV_TX_OFFLOAD_UDP_CKSUM | - DEV_TX_OFFLOAD_TCP_CKSUM); - if (priv_get_ifname(priv, &ifname) == 0) - info->if_index = if_nametoindex(ifname); - /* FIXME: RETA update/query API expects the callee to know the size of - * the indirection table, for this PMD the size varies depending on - * the number of RX queues, it becomes impossible to find the correct - * size if it is not fixed. - * The API should be updated to solve this problem. */ - info->reta_size = priv->ind_table_max_size; - info->speed_capa = - ETH_LINK_SPEED_1G | - ETH_LINK_SPEED_10G | - ETH_LINK_SPEED_20G | - ETH_LINK_SPEED_25G | - ETH_LINK_SPEED_40G | - ETH_LINK_SPEED_50G | - ETH_LINK_SPEED_56G | - ETH_LINK_SPEED_100G; - priv_unlock(priv); -} - -const uint32_t * -mlx5_dev_supported_ptypes_get(struct rte_eth_dev *dev) -{ - static const uint32_t ptypes[] = { - /* refers to rxq_cq_to_pkt_type() */ - RTE_PTYPE_L3_IPV4, - RTE_PTYPE_L3_IPV6, - RTE_PTYPE_INNER_L3_IPV4, - RTE_PTYPE_INNER_L3_IPV6, - RTE_PTYPE_UNKNOWN - - }; - - if (dev->rx_pkt_burst == mlx5_rx_burst) - return ptypes; - return NULL; -} - -/** - * DPDK callback to retrieve physical link information (unlocked version). - * - * @param dev - * Pointer to Ethernet device structure. - * @param wait_to_complete - * Wait for request completion (ignored). - */ -static int -mlx5_link_update_unlocked(struct rte_eth_dev *dev, int wait_to_complete) -{ - struct priv *priv = mlx5_get_priv(dev); - struct ethtool_cmd edata = { - .cmd = ETHTOOL_GSET - }; - struct ifreq ifr; - struct rte_eth_link dev_link; - int link_speed = 0; - - (void)wait_to_complete; - if (priv_ifreq(priv, SIOCGIFFLAGS, &ifr)) { - WARN("ioctl(SIOCGIFFLAGS) failed: %s", strerror(errno)); - return -1; - } - memset(&dev_link, 0, sizeof(dev_link)); - dev_link.link_status = ((ifr.ifr_flags & IFF_UP) && - (ifr.ifr_flags & IFF_RUNNING)); - ifr.ifr_data = (void *)&edata; - if (priv_ifreq(priv, SIOCETHTOOL, &ifr)) { - WARN("ioctl(SIOCETHTOOL, ETHTOOL_GSET) failed: %s", - strerror(errno)); - return -1; - } - link_speed = ethtool_cmd_speed(&edata); - if (link_speed == -1) - dev_link.link_speed = 0; - else - dev_link.link_speed = link_speed; - 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 (memcmp(&dev_link, &dev->data->dev_link, sizeof(dev_link))) { - /* Link status changed. */ - dev->data->dev_link = dev_link; - return 0; + info->max_mac_addrs = MLX5_MAX_UC_MAC_ADDRESSES; + info->rx_queue_offload_capa = mlx5_get_rx_queue_offloads(dev); + info->rx_offload_capa = (mlx5_get_rx_port_offloads() | + info->rx_queue_offload_capa); + info->tx_offload_capa = mlx5_get_tx_port_offloads(dev); + 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) { + uint16_t port_id; + + 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].data->dev_private; + + if (!opriv || + opriv->representor || + opriv->sh != priv->sh || + opriv->domain_id != priv->domain_id) + continue; + /* + * Override switch name with that of the master + * device. + */ + info->switch_info.name = opriv->dev_data->name; + break; + } } - /* Link status is still the same. */ - return -1; -} - -/** - * DPDK callback to retrieve physical link information. - * - * @param dev - * Pointer to Ethernet device structure. - * @param wait_to_complete - * Wait for request completion (ignored). - */ -int -mlx5_link_update(struct rte_eth_dev *dev, int wait_to_complete) -{ - struct priv *priv = mlx5_get_priv(dev); - int ret; - - priv_lock(priv); - ret = mlx5_link_update_unlocked(dev, wait_to_complete); - priv_unlock(priv); - return ret; + return 0; } /** - * DPDK callback to change the MTU. - * - * Setting the MTU affects hardware MRU (packets larger than the MTU cannot be - * received). Use this as a hint to enable/disable scattered packets support - * and improve performance when not needed. - * Since failure is not an option, reconfiguring queues on the fly is not - * recommended. + * Get firmware version of a device. * * @param dev - * Pointer to Ethernet device structure. - * @param in_mtu - * New MTU. + * Ethernet device port. + * @param fw_ver + * String output allocated by caller. + * @param fw_size + * Size of the output string, including terminating null byte. * * @return - * 0 on success, negative errno value on failure. + * 0 on success, or the size of the non truncated string if too big. */ int -mlx5_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu) +mlx5_fw_version_get(struct rte_eth_dev *dev, char *fw_ver, size_t fw_size) { - struct priv *priv = dev->data->dev_private; - int ret = 0; - unsigned int i; - uint16_t (*rx_func)(void *, struct rte_mbuf **, uint16_t) = - mlx5_rx_burst; - unsigned int max_frame_len; - int rehash; - int restart = priv->started; + struct mlx5_priv *priv = dev->data->dev_private; + struct mlx5_dev_attr *attr = &priv->sh->device_attr; + size_t size = strnlen(attr->fw_ver, sizeof(attr->fw_ver)) + 1; - if (mlx5_is_secondary()) - return -E_RTE_SECONDARY; - - priv_lock(priv); - /* Set kernel interface MTU first. */ - if (priv_set_mtu(priv, mtu)) { - ret = errno; - WARN("cannot set port %u MTU to %u: %s", priv->port, mtu, - strerror(ret)); - goto out; - } else - DEBUG("adapter port %u MTU set to %u", priv->port, mtu); - /* Temporarily replace RX handler with a fake one, assuming it has not - * been copied elsewhere. */ - dev->rx_pkt_burst = removed_rx_burst; - /* Make sure everyone has left mlx5_rx_burst() and uses - * removed_rx_burst() instead. */ - rte_wmb(); - usleep(1000); - /* MTU does not include header and CRC. */ - max_frame_len = ETHER_HDR_LEN + mtu + ETHER_CRC_LEN; - /* Check if at least one queue is going to need a SGE update. */ - for (i = 0; i != priv->rxqs_n; ++i) { - struct rxq *rxq = (*priv->rxqs)[i]; - unsigned int mb_len; - unsigned int size = RTE_PKTMBUF_HEADROOM + max_frame_len; - unsigned int sges_n; - - if (rxq == NULL) - continue; - mb_len = rte_pktmbuf_data_room_size(rxq->mp); - assert(mb_len >= RTE_PKTMBUF_HEADROOM); - /* - * Determine the number of SGEs needed for a full packet - * and round it to the next power of two. - */ - sges_n = log2above((size / mb_len) + !!(size % mb_len)); - if (sges_n != rxq->sges_n) - break; - } - /* - * If all queues have the right number of SGEs, a simple rehash - * of their buffers is enough, otherwise SGE information can only - * be updated in a queue by recreating it. All resources that depend - * on queues (flows, indirection tables) must be recreated as well in - * that case. - */ - rehash = (i == priv->rxqs_n); - if (!rehash) { - /* Clean up everything as with mlx5_dev_stop(). */ - priv_special_flow_disable_all(priv); - priv_mac_addrs_disable(priv); - priv_destroy_hash_rxqs(priv); - priv_fdir_disable(priv); - priv_dev_interrupt_handler_uninstall(priv, dev); - } -recover: - /* Reconfigure each RX queue. */ - for (i = 0; (i != priv->rxqs_n); ++i) { - struct rxq *rxq = (*priv->rxqs)[i]; - struct rxq_ctrl *rxq_ctrl = - container_of(rxq, struct rxq_ctrl, rxq); - int sp; - unsigned int mb_len; - unsigned int tmp; - - if (rxq == NULL) - continue; - mb_len = rte_pktmbuf_data_room_size(rxq->mp); - assert(mb_len >= RTE_PKTMBUF_HEADROOM); - /* Toggle scattered support (sp) if necessary. */ - sp = (max_frame_len > (mb_len - RTE_PKTMBUF_HEADROOM)); - /* Provide new values to rxq_setup(). */ - dev->data->dev_conf.rxmode.jumbo_frame = sp; - dev->data->dev_conf.rxmode.max_rx_pkt_len = max_frame_len; - if (rehash) - ret = rxq_rehash(dev, rxq_ctrl); - else - ret = rxq_ctrl_setup(dev, rxq_ctrl, rxq->elts_n, - rxq_ctrl->socket, NULL, rxq->mp); - if (!ret) - continue; - /* Attempt to roll back in case of error. */ - tmp = (mb_len << rxq->sges_n) - RTE_PKTMBUF_HEADROOM; - if (max_frame_len != tmp) { - max_frame_len = tmp; - goto recover; - } - /* Double fault, disable RX. */ - break; - } - /* - * Use a safe RX burst function in case of error, otherwise mimic - * mlx5_dev_start(). - */ - if (ret) { - ERROR("unable to reconfigure RX queues, RX disabled"); - rx_func = removed_rx_burst; - } else if (restart && - !rehash && - !priv_create_hash_rxqs(priv) && - !priv_rehash_flows(priv)) { - if (dev->data->dev_conf.fdir_conf.mode == RTE_FDIR_MODE_NONE) - priv_fdir_enable(priv); - priv_dev_interrupt_handler_install(priv, dev); - } - priv->mtu = mtu; - /* Burst functions can now be called again. */ - rte_wmb(); - dev->rx_pkt_burst = rx_func; -out: - priv_unlock(priv); - assert(ret >= 0); - return -ret; + if (fw_size < size) + return size; + if (fw_ver != NULL) + strlcpy(fw_ver, attr->fw_ver, fw_size); + return 0; } /** - * DPDK callback to get flow control status. + * Get supported packet types. * * @param dev * Pointer to Ethernet device structure. - * @param[out] fc_conf - * Flow control output buffer. * * @return - * 0 on success, negative errno value on failure. + * A pointer to the supported Packet types array. */ -int -mlx5_dev_get_flow_ctrl(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf) +const uint32_t * +mlx5_dev_supported_ptypes_get(struct rte_eth_dev *dev) { - struct priv *priv = dev->data->dev_private; - struct ifreq ifr; - struct ethtool_pauseparam ethpause = { - .cmd = ETHTOOL_GPAUSEPARAM + static const uint32_t ptypes[] = { + /* refers to rxq_cq_to_pkt_type() */ + RTE_PTYPE_L2_ETHER, + RTE_PTYPE_L3_IPV4_EXT_UNKNOWN, + RTE_PTYPE_L3_IPV6_EXT_UNKNOWN, + RTE_PTYPE_L4_NONFRAG, + RTE_PTYPE_L4_FRAG, + RTE_PTYPE_L4_TCP, + RTE_PTYPE_L4_UDP, + RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN, + RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN, + RTE_PTYPE_INNER_L4_NONFRAG, + RTE_PTYPE_INNER_L4_FRAG, + RTE_PTYPE_INNER_L4_TCP, + RTE_PTYPE_INNER_L4_UDP, + RTE_PTYPE_UNKNOWN }; - int ret; - - if (mlx5_is_secondary()) - return -E_RTE_SECONDARY; - ifr.ifr_data = (void *)ðpause; - priv_lock(priv); - if (priv_ifreq(priv, SIOCETHTOOL, &ifr)) { - ret = errno; - WARN("ioctl(SIOCETHTOOL, ETHTOOL_GPAUSEPARAM)" - " failed: %s", - strerror(ret)); - goto out; - } - - 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; - ret = 0; - -out: - priv_unlock(priv); - assert(ret >= 0); - return -ret; + if (dev->rx_pkt_burst == mlx5_rx_burst || + dev->rx_pkt_burst == mlx5_rx_burst_mprq || + dev->rx_pkt_burst == mlx5_rx_burst_vec) + return ptypes; + return NULL; } /** - * DPDK callback to modify flow control parameters. + * DPDK callback to change the MTU. * * @param dev * Pointer to Ethernet device structure. - * @param[in] fc_conf - * Flow control parameters. + * @param in_mtu + * New MTU. * * @return - * 0 on success, negative errno value on failure. + * 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) +mlx5_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu) { - struct priv *priv = dev->data->dev_private; - struct ifreq ifr; - struct ethtool_pauseparam ethpause = { - .cmd = ETHTOOL_SPAUSEPARAM - }; + struct mlx5_priv *priv = dev->data->dev_private; + uint16_t kern_mtu = 0; int ret; - if (mlx5_is_secondary()) - return -E_RTE_SECONDARY; - - 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; - - priv_lock(priv); - if (priv_ifreq(priv, SIOCETHTOOL, &ifr)) { - ret = errno; - WARN("ioctl(SIOCETHTOOL, ETHTOOL_SPAUSEPARAM)" - " failed: %s", - strerror(ret)); - goto out; + 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; } - ret = 0; - -out: - priv_unlock(priv); - assert(ret >= 0); - return -ret; + rte_errno = EAGAIN; + return -rte_errno; } /** - * Get PCI information from struct ibv_device. + * Configure the RX function to use. * - * @param device - * Pointer to Ethernet device structure. - * @param[out] pci_addr - * PCI bus address output buffer. + * @param dev + * Pointer to private data structure. * * @return - * 0 on success, -1 on failure and errno is set. + * Pointer to selected Rx burst function. */ -int -mlx5_ibv_device_to_pci_addr(const struct ibv_device *device, - struct rte_pci_addr *pci_addr) +eth_rx_burst_t +mlx5_select_rx_function(struct rte_eth_dev *dev) { - FILE *file; - char line[32]; - MKSTR(path, "%s/device/uevent", device->ibdev_path); - - file = fopen(path, "rb"); - if (file == NULL) - return -1; - while (fgets(line, sizeof(line), file) == line) { - size_t len = strlen(line); - int ret; + eth_rx_burst_t rx_pkt_burst = mlx5_rx_burst; - /* 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=" - "%" SCNx16 ":%" SCNx8 ":%" SCNx8 ".%" SCNx8 "\n", - &pci_addr->domain, - &pci_addr->bus, - &pci_addr->devid, - &pci_addr->function) == 4) { - ret = 0; - break; - } + 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", + dev->data->port_id); + } else if (mlx5_mprq_enabled(dev)) { + rx_pkt_burst = mlx5_rx_burst_mprq; } - fclose(file); - return 0; + return rx_pkt_burst; } /** - * Link status handler. + * Get the E-Switch parameters by port id. * - * @param priv - * Pointer to private structure. - * @param dev - * Pointer to the rte_eth_dev structure. + * @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 - * Nonzero if the callback process can be called immediately. + * pointer to device private data structure containing data needed + * on success, NULL otherwise and rte_errno is set. */ -static int -priv_dev_link_status_handler(struct priv *priv, struct rte_eth_dev *dev) +struct mlx5_priv * +mlx5_port_to_eswitch_info(uint16_t port, bool valid) { - struct ibv_async_event event; - int port_change = 0; - int ret = 0; + struct rte_eth_dev *dev; + struct mlx5_priv *priv; - /* Read all message and acknowledge them. */ - for (;;) { - if (ibv_get_async_event(priv->ctx, &event)) - break; - - if (event.event_type == IBV_EVENT_PORT_ACTIVE || - event.event_type == IBV_EVENT_PORT_ERR) - port_change = 1; - else - DEBUG("event type %d on port %d not handled", - event.event_type, event.element.port_num); - ibv_ack_async_event(&event); + if (port >= RTE_MAX_ETHPORTS) { + rte_errno = EINVAL; + return NULL; } - - if (port_change ^ priv->pending_alarm) { - struct rte_eth_link *link = &dev->data->dev_link; - - priv->pending_alarm = 0; - mlx5_link_update_unlocked(dev, 0); - if (((link->link_speed == 0) && link->link_status) || - ((link->link_speed != 0) && !link->link_status)) { - /* Inconsistent status, check again later. */ - priv->pending_alarm = 1; - rte_eal_alarm_set(MLX5_ALARM_TIMEOUT_US, - mlx5_dev_link_status_handler, - dev); - } else - ret = 1; + if (!valid && !rte_eth_dev_is_valid_port(port)) { + rte_errno = ENODEV; + return NULL; } - return ret; -} - -/** - * Handle delayed link status event. - * - * @param arg - * Registered argument. - */ -void -mlx5_dev_link_status_handler(void *arg) -{ - struct rte_eth_dev *dev = arg; - struct priv *priv = dev->data->dev_private; - int ret; - - priv_lock(priv); - assert(priv->pending_alarm == 1); - ret = priv_dev_link_status_handler(priv, dev); - priv_unlock(priv); - if (ret) - _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC); -} - -/** - * Handle interrupts from the NIC. - * - * @param[in] intr_handle - * Interrupt handler. - * @param cb_arg - * Callback argument. - */ -void -mlx5_dev_interrupt_handler(struct rte_intr_handle *intr_handle, void *cb_arg) -{ - struct rte_eth_dev *dev = cb_arg; - struct priv *priv = dev->data->dev_private; - int ret; - - (void)intr_handle; - priv_lock(priv); - ret = priv_dev_link_status_handler(priv, dev); - priv_unlock(priv); - if (ret) - _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC); -} - -/** - * Uninstall interrupt handler. - * - * @param priv - * Pointer to private structure. - * @param dev - * Pointer to the rte_eth_dev structure. - */ -void -priv_dev_interrupt_handler_uninstall(struct priv *priv, struct rte_eth_dev *dev) -{ - if (!dev->data->dev_conf.intr_conf.lsc) - return; - rte_intr_callback_unregister(&priv->intr_handle, - mlx5_dev_interrupt_handler, - dev); - if (priv->pending_alarm) - rte_eal_alarm_cancel(mlx5_dev_link_status_handler, dev); - priv->pending_alarm = 0; - priv->intr_handle.fd = 0; - priv->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN; -} - -/** - * Install interrupt handler. - * - * @param priv - * Pointer to private structure. - * @param dev - * Pointer to the rte_eth_dev structure. - */ -void -priv_dev_interrupt_handler_install(struct priv *priv, struct rte_eth_dev *dev) -{ - int rc, flags; - - if (!dev->data->dev_conf.intr_conf.lsc) - return; - assert(priv->ctx->async_fd > 0); - flags = fcntl(priv->ctx->async_fd, F_GETFL); - rc = fcntl(priv->ctx->async_fd, F_SETFL, flags | O_NONBLOCK); - if (rc < 0) { - INFO("failed to change file descriptor async event queue"); - dev->data->dev_conf.intr_conf.lsc = 0; - } else { - priv->intr_handle.fd = priv->ctx->async_fd; - priv->intr_handle.type = RTE_INTR_HANDLE_EXT; - rte_intr_callback_register(&priv->intr_handle, - mlx5_dev_interrupt_handler, - dev); + dev = &rte_eth_devices[port]; + priv = dev->data->dev_private; + if (!(priv->representor || priv->master)) { + rte_errno = EINVAL; + return NULL; } + return priv; } /** - * Change the link state (UP / DOWN). + * Get the E-Switch parameters by device instance. * - * @param priv - * Pointer to Ethernet device structure. - * @param up - * Nonzero for link up, otherwise link down. + * @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 - * 0 on success, errno value on failure. + * pointer to device private data structure containing data needed + * on success, NULL otherwise and rte_errno is set. */ -static int -priv_set_link(struct priv *priv, int up) +struct mlx5_priv * +mlx5_dev_to_eswitch_info(struct rte_eth_dev *dev) { - struct rte_eth_dev *dev = priv->dev; - int err; + struct mlx5_priv *priv; - if (up) { - err = priv_set_flags(priv, ~IFF_UP, IFF_UP); - if (err) - return err; - priv_select_tx_function(priv); - priv_select_rx_function(priv); - } else { - err = priv_set_flags(priv, ~IFF_UP, ~IFF_UP); - if (err) - return err; - dev->rx_pkt_burst = removed_rx_burst; - dev->tx_pkt_burst = removed_tx_burst; + priv = dev->data->dev_private; + if (!(priv->representor || priv->master)) { + rte_errno = EINVAL; + return NULL; } - return 0; -} - -/** - * DPDK callback to bring the link DOWN. - * - * @param dev - * Pointer to Ethernet device structure. - * - * @return - * 0 on success, errno value on failure. - */ -int -mlx5_set_link_down(struct rte_eth_dev *dev) -{ - struct priv *priv = dev->data->dev_private; - int err; - - priv_lock(priv); - err = priv_set_link(priv, 0); - priv_unlock(priv); - return err; + return priv; } /** - * DPDK callback to bring the link UP. + * DPDK callback to retrieve hairpin capabilities. * * @param dev * Pointer to Ethernet device structure. + * @param[out] cap + * Storage for hairpin capability data. * * @return - * 0 on success, errno value on failure. + * 0 on success, a negative errno value otherwise and rte_errno is set. */ int -mlx5_set_link_up(struct rte_eth_dev *dev) -{ - struct priv *priv = dev->data->dev_private; - int err; - - priv_lock(priv); - err = priv_set_link(priv, 1); - priv_unlock(priv); - return err; -} - -/** - * Configure secondary process queues from a private data pointer (primary - * or secondary) and update burst callbacks. Can take place only once. - * - * All queues must have been previously created by the primary process to - * avoid undefined behavior. - * - * @param priv - * Private data pointer from either primary or secondary process. - * - * @return - * Private data pointer from secondary process, NULL in case of error. - */ -struct priv * -mlx5_secondary_data_setup(struct priv *priv) +mlx5_hairpin_cap_get(struct rte_eth_dev *dev, + struct rte_eth_hairpin_cap *cap) { - unsigned int port_id = 0; - struct mlx5_secondary_data *sd; - void **tx_queues; - void **rx_queues; - unsigned int nb_tx_queues; - unsigned int nb_rx_queues; - unsigned int i; - - /* priv must be valid at this point. */ - assert(priv != NULL); - /* priv->dev must also be valid but may point to local memory from - * another process, possibly with the same address and must not - * be dereferenced yet. */ - assert(priv->dev != NULL); - /* Determine port ID by finding out where priv comes from. */ - while (1) { - sd = &mlx5_secondary_data[port_id]; - rte_spinlock_lock(&sd->lock); - /* Primary process? */ - if (sd->primary_priv == priv) - break; - /* Secondary process? */ - if (sd->data.dev_private == priv) - break; - rte_spinlock_unlock(&sd->lock); - if (++port_id == RTE_DIM(mlx5_secondary_data)) - port_id = 0; - } - /* Switch to secondary private structure. If private data has already - * been updated by another thread, there is nothing else to do. */ - priv = sd->data.dev_private; - if (priv->dev->data == &sd->data) - goto end; - /* Sanity checks. Secondary private structure is supposed to point - * to local eth_dev, itself still pointing to the shared device data - * structure allocated by the primary process. */ - assert(sd->shared_dev_data != &sd->data); - assert(sd->data.nb_tx_queues == 0); - assert(sd->data.tx_queues == NULL); - assert(sd->data.nb_rx_queues == 0); - assert(sd->data.rx_queues == NULL); - assert(priv != sd->primary_priv); - assert(priv->dev->data == sd->shared_dev_data); - assert(priv->txqs_n == 0); - assert(priv->txqs == NULL); - assert(priv->rxqs_n == 0); - assert(priv->rxqs == NULL); - nb_tx_queues = sd->shared_dev_data->nb_tx_queues; - nb_rx_queues = sd->shared_dev_data->nb_rx_queues; - /* Allocate local storage for queues. */ - tx_queues = rte_zmalloc("secondary ethdev->tx_queues", - sizeof(sd->data.tx_queues[0]) * nb_tx_queues, - RTE_CACHE_LINE_SIZE); - rx_queues = rte_zmalloc("secondary ethdev->rx_queues", - sizeof(sd->data.rx_queues[0]) * nb_rx_queues, - RTE_CACHE_LINE_SIZE); - if (tx_queues == NULL || rx_queues == NULL) - goto error; - /* Lock to prevent control operations during setup. */ - priv_lock(priv); - /* TX queues. */ - for (i = 0; i != nb_tx_queues; ++i) { - struct txq *primary_txq = (*sd->primary_priv->txqs)[i]; - struct txq_ctrl *primary_txq_ctrl; - struct txq_ctrl *txq_ctrl; - - if (primary_txq == NULL) - continue; - primary_txq_ctrl = container_of(primary_txq, - struct txq_ctrl, txq); - txq_ctrl = rte_calloc_socket("TXQ", 1, sizeof(*txq_ctrl), 0, - primary_txq_ctrl->socket); - if (txq_ctrl != NULL) { - if (txq_ctrl_setup(priv->dev, - primary_txq_ctrl, - primary_txq->elts_n, - primary_txq_ctrl->socket, - NULL) == 0) { - txq_ctrl->txq.stats.idx = - primary_txq->stats.idx; - tx_queues[i] = &txq_ctrl->txq; - continue; - } - rte_free(txq_ctrl); - } - while (i) { - txq_ctrl = tx_queues[--i]; - txq_cleanup(txq_ctrl); - rte_free(txq_ctrl); - } - goto error; - } - /* RX queues. */ - for (i = 0; i != nb_rx_queues; ++i) { - struct rxq_ctrl *primary_rxq = - container_of((*sd->primary_priv->rxqs)[i], - struct rxq_ctrl, rxq); - - if (primary_rxq == NULL) - continue; - /* Not supported yet. */ - rx_queues[i] = NULL; - } - /* Update everything. */ - priv->txqs = (void *)tx_queues; - priv->txqs_n = nb_tx_queues; - priv->rxqs = (void *)rx_queues; - priv->rxqs_n = nb_rx_queues; - sd->data.rx_queues = rx_queues; - sd->data.tx_queues = tx_queues; - sd->data.nb_rx_queues = nb_rx_queues; - sd->data.nb_tx_queues = nb_tx_queues; - sd->data.dev_link = sd->shared_dev_data->dev_link; - sd->data.mtu = sd->shared_dev_data->mtu; - memcpy(sd->data.rx_queue_state, sd->shared_dev_data->rx_queue_state, - sizeof(sd->data.rx_queue_state)); - memcpy(sd->data.tx_queue_state, sd->shared_dev_data->tx_queue_state, - sizeof(sd->data.tx_queue_state)); - sd->data.dev_flags = sd->shared_dev_data->dev_flags; - /* Use local data from now on. */ - rte_mb(); - priv->dev->data = &sd->data; - rte_mb(); - priv_select_tx_function(priv); - priv_select_rx_function(priv); - priv_unlock(priv); -end: - /* More sanity checks. */ - assert(priv->dev->data == &sd->data); - rte_spinlock_unlock(&sd->lock); - return priv; -error: - priv_unlock(priv); - rte_free(tx_queues); - rte_free(rx_queues); - rte_spinlock_unlock(&sd->lock); - return NULL; -} + struct mlx5_priv *priv = dev->data->dev_private; -/** - * Configure the TX function to use. - * - * @param priv - * Pointer to private structure. - */ -void -priv_select_tx_function(struct priv *priv) -{ - priv->dev->tx_pkt_burst = mlx5_tx_burst; - /* Display warning for unsupported configurations. */ - if (priv->sriov && priv->mps) - WARN("multi-packet send WQE cannot be used on a SR-IOV setup"); - /* Select appropriate TX function. */ - if ((priv->sriov == 0) && priv->mps && priv->txq_inline) { - priv->dev->tx_pkt_burst = mlx5_tx_burst_mpw_inline; - DEBUG("selected MPW inline TX function"); - } else if ((priv->sriov == 0) && priv->mps) { - priv->dev->tx_pkt_burst = mlx5_tx_burst_mpw; - DEBUG("selected MPW TX function"); + if (priv->sh->devx == 0) { + rte_errno = ENOTSUP; + return -rte_errno; } -} - -/** - * Configure the RX function to use. - * - * @param priv - * Pointer to private structure. - */ -void -priv_select_rx_function(struct priv *priv) -{ - priv->dev->rx_pkt_burst = mlx5_rx_burst; + 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; }