#include <stddef.h>
#include <unistd.h>
#include <string.h>
-#include <assert.h>
-#include <dlfcn.h>
#include <stdint.h>
#include <stdlib.h>
#include <errno.h>
#include <rte_pci.h>
#include <rte_bus_pci.h>
#include <rte_common.h>
-#include <rte_config.h>
-#include <rte_eal_memconfig.h>
#include <rte_kvargs.h>
+#include <rte_rwlock.h>
+#include <rte_spinlock.h>
+#include <rte_string_fns.h>
+#include <rte_alarm.h>
+#include <mlx5_glue.h>
+#include <mlx5_devx_cmds.h>
+#include <mlx5_common.h>
+
+#include "mlx5_defs.h"
#include "mlx5.h"
#include "mlx5_utils.h"
#include "mlx5_rxtx.h"
#include "mlx5_autoconf.h"
-#include "mlx5_defs.h"
-#include "mlx5_glue.h"
#include "mlx5_mr.h"
+#include "mlx5_flow.h"
+#include "rte_pmd_mlx5.h"
/* Device parameter to enable RX completion queue compression. */
#define MLX5_RXQ_CQE_COMP_EN "rxq_cqe_comp_en"
+/* Device parameter to enable RX completion entry padding to 128B. */
+#define MLX5_RXQ_CQE_PAD_EN "rxq_cqe_pad_en"
+
+/* Device parameter to enable padding Rx packet to cacheline size. */
+#define MLX5_RXQ_PKT_PAD_EN "rxq_pkt_pad_en"
+
/* Device parameter to enable Multi-Packet Rx queue. */
#define MLX5_RX_MPRQ_EN "mprq_en"
/* Device parameter to set the minimum number of Rx queues to enable MPRQ. */
#define MLX5_RXQS_MIN_MPRQ "rxqs_min_mprq"
-/* Device parameter to configure inline send. */
+/* Device parameter to configure inline send. Deprecated, ignored.*/
#define MLX5_TXQ_INLINE "txq_inline"
+/* Device parameter to limit packet size to inline with ordinary SEND. */
+#define MLX5_TXQ_INLINE_MAX "txq_inline_max"
+
+/* Device parameter to configure minimal data size to inline. */
+#define MLX5_TXQ_INLINE_MIN "txq_inline_min"
+
+/* Device parameter to limit packet size to inline with Enhanced MPW. */
+#define MLX5_TXQ_INLINE_MPW "txq_inline_mpw"
+
/*
* Device parameter to configure the number of TX queues threshold for
* enabling inline send.
*/
#define MLX5_TXQS_MIN_INLINE "txqs_min_inline"
+/*
+ * Device parameter to configure the number of TX queues threshold for
+ * enabling vectorized Tx, deprecated, ignored (no vectorized Tx routines).
+ */
+#define MLX5_TXQS_MAX_VEC "txqs_max_vec"
+
/* Device parameter to enable multi-packet send WQEs. */
#define MLX5_TXQ_MPW_EN "txq_mpw_en"
-/* Device parameter to include 2 dsegs in the title WQEBB. */
+/*
+ * Device parameter to force doorbell register mapping
+ * to non-cahed region eliminating the extra write memory barrier.
+ */
+#define MLX5_TX_DB_NC "tx_db_nc"
+
+/*
+ * Device parameter to include 2 dsegs in the title WQEBB.
+ * Deprecated, ignored.
+ */
#define MLX5_TXQ_MPW_HDR_DSEG_EN "txq_mpw_hdr_dseg_en"
-/* Device parameter to limit the size of inlining packet. */
+/*
+ * Device parameter to limit the size of inlining packet.
+ * Deprecated, ignored.
+ */
#define MLX5_TXQ_MAX_INLINE_LEN "txq_max_inline_len"
-/* Device parameter to enable hardware Tx vector. */
+/*
+ * Device parameter to enable hardware Tx vector.
+ * Deprecated, ignored (no vectorized Tx routines anymore).
+ */
#define MLX5_TX_VEC_EN "tx_vec_en"
/* Device parameter to enable hardware Rx vector. */
/* Allow L3 VXLAN flow creation. */
#define MLX5_L3_VXLAN_EN "l3_vxlan_en"
+/* Activate DV E-Switch flow steering. */
+#define MLX5_DV_ESW_EN "dv_esw_en"
+
+/* Activate DV flow steering. */
+#define MLX5_DV_FLOW_EN "dv_flow_en"
+
+/* Enable extensive flow metadata support. */
+#define MLX5_DV_XMETA_EN "dv_xmeta_en"
+
/* Activate Netlink support in VF mode. */
#define MLX5_VF_NL_EN "vf_nl_en"
+/* Enable extending memsegs when creating a MR. */
+#define MLX5_MR_EXT_MEMSEG_EN "mr_ext_memseg_en"
+
+/* Select port representors to instantiate. */
+#define MLX5_REPRESENTOR "representor"
+
+/* Device parameter to configure the maximum number of dump files per queue. */
+#define MLX5_MAX_DUMP_FILES_NUM "max_dump_files_num"
+
+/* Configure timeout of LRO session (in microseconds). */
+#define MLX5_LRO_TIMEOUT_USEC "lro_timeout_usec"
+
#ifndef HAVE_IBV_MLX5_MOD_MPW
#define MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED (1 << 2)
#define MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW (1 << 3)
/* Spinlock for mlx5_shared_data allocation. */
static rte_spinlock_t mlx5_shared_data_lock = RTE_SPINLOCK_INITIALIZER;
+/* Process local data for secondary processes. */
+static struct mlx5_local_data mlx5_local_data;
+
/** Driver-specific log messages type. */
int mlx5_logtype;
+/** Data associated with devices to spawn. */
+struct mlx5_dev_spawn_data {
+ uint32_t ifindex; /**< Network interface index. */
+ uint32_t max_port; /**< IB device maximal port index. */
+ uint32_t ibv_port; /**< IB device physical port index. */
+ int pf_bond; /**< bonding device PF index. < 0 - no bonding */
+ struct mlx5_switch_info info; /**< Switch information. */
+ struct ibv_device *ibv_dev; /**< Associated IB device. */
+ struct rte_eth_dev *eth_dev; /**< Associated Ethernet device. */
+ struct rte_pci_device *pci_dev; /**< Backend PCI device. */
+};
+
+static LIST_HEAD(, mlx5_ibv_shared) mlx5_ibv_list = LIST_HEAD_INITIALIZER();
+static pthread_mutex_t mlx5_ibv_list_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+#define MLX5_FLOW_MIN_ID_POOL_SIZE 512
+#define MLX5_ID_GENERATION_ARRAY_FACTOR 16
+
+#define MLX5_FLOW_TABLE_HLIST_ARRAY_SIZE 4096
+#define MLX5_TAGS_HLIST_ARRAY_SIZE 8192
+
/**
- * Prepare shared data between primary and secondary process.
+ * Allocate ID pool structure.
+ *
+ * @param[in] max_id
+ * The maximum id can be allocated from the pool.
+ *
+ * @return
+ * Pointer to pool object, NULL value otherwise.
*/
-static void
-mlx5_prepare_shared_data(void)
+struct mlx5_flow_id_pool *
+mlx5_flow_id_pool_alloc(uint32_t max_id)
{
- const struct rte_memzone *mz;
-
- rte_spinlock_lock(&mlx5_shared_data_lock);
- if (mlx5_shared_data == NULL) {
- if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
- /* Allocate shared memory. */
- mz = rte_memzone_reserve(MZ_MLX5_PMD_SHARED_DATA,
- sizeof(*mlx5_shared_data),
- SOCKET_ID_ANY, 0);
- } else {
- /* Lookup allocated shared memory. */
- mz = rte_memzone_lookup(MZ_MLX5_PMD_SHARED_DATA);
- }
- if (mz == NULL)
- rte_panic("Cannot allocate mlx5 shared data\n");
- mlx5_shared_data = mz->addr;
- /* Initialize shared data. */
- if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
- LIST_INIT(&mlx5_shared_data->mem_event_cb_list);
- rte_rwlock_init(&mlx5_shared_data->mem_event_rwlock);
- }
+ struct mlx5_flow_id_pool *pool;
+ void *mem;
+
+ pool = rte_zmalloc("id pool allocation", sizeof(*pool),
+ RTE_CACHE_LINE_SIZE);
+ if (!pool) {
+ DRV_LOG(ERR, "can't allocate id pool");
+ rte_errno = ENOMEM;
+ return NULL;
}
- rte_spinlock_unlock(&mlx5_shared_data_lock);
+ mem = rte_zmalloc("", MLX5_FLOW_MIN_ID_POOL_SIZE * sizeof(uint32_t),
+ RTE_CACHE_LINE_SIZE);
+ if (!mem) {
+ DRV_LOG(ERR, "can't allocate mem for id pool");
+ rte_errno = ENOMEM;
+ goto error;
+ }
+ pool->free_arr = mem;
+ pool->curr = pool->free_arr;
+ pool->last = pool->free_arr + MLX5_FLOW_MIN_ID_POOL_SIZE;
+ pool->base_index = 0;
+ pool->max_id = max_id;
+ return pool;
+error:
+ rte_free(pool);
+ return NULL;
}
/**
- * Retrieve integer value from environment variable.
+ * Release ID pool structure.
*
- * @param[in] name
- * Environment variable name.
+ * @param[in] pool
+ * Pointer to flow id pool object to free.
+ */
+void
+mlx5_flow_id_pool_release(struct mlx5_flow_id_pool *pool)
+{
+ rte_free(pool->free_arr);
+ rte_free(pool);
+}
+
+/**
+ * Generate ID.
+ *
+ * @param[in] pool
+ * Pointer to flow id pool.
+ * @param[out] id
+ * The generated ID.
*
* @return
- * Integer value, 0 if the variable is not set.
+ * 0 on success, error value otherwise.
*/
-int
-mlx5_getenv_int(const char *name)
+uint32_t
+mlx5_flow_id_get(struct mlx5_flow_id_pool *pool, uint32_t *id)
{
- const char *val = getenv(name);
-
- if (val == NULL)
+ if (pool->curr == pool->free_arr) {
+ if (pool->base_index == pool->max_id) {
+ rte_errno = ENOMEM;
+ DRV_LOG(ERR, "no free id");
+ return -rte_errno;
+ }
+ *id = ++pool->base_index;
return 0;
- return atoi(val);
+ }
+ *id = *(--pool->curr);
+ return 0;
}
/**
- * Verbs callback to allocate a memory. This function should allocate the space
- * according to the size provided residing inside a huge page.
- * Please note that all allocation must respect the alignment from libmlx5
- * (i.e. currently sysconf(_SC_PAGESIZE)).
+ * Release ID.
*
- * @param[in] size
- * The size in bytes of the memory to allocate.
- * @param[in] data
- * A pointer to the callback data.
+ * @param[in] pool
+ * Pointer to flow id pool.
+ * @param[out] id
+ * The generated ID.
*
* @return
- * Allocated buffer, NULL otherwise and rte_errno is set.
+ * 0 on success, error value otherwise.
*/
-static void *
-mlx5_alloc_verbs_buf(size_t size, void *data)
+uint32_t
+mlx5_flow_id_release(struct mlx5_flow_id_pool *pool, uint32_t id)
{
- struct priv *priv = data;
- void *ret;
- size_t alignment = sysconf(_SC_PAGESIZE);
- unsigned int socket = SOCKET_ID_ANY;
-
- if (priv->verbs_alloc_ctx.type == MLX5_VERBS_ALLOC_TYPE_TX_QUEUE) {
- const struct mlx5_txq_ctrl *ctrl = priv->verbs_alloc_ctx.obj;
-
- socket = ctrl->socket;
- } else if (priv->verbs_alloc_ctx.type ==
- MLX5_VERBS_ALLOC_TYPE_RX_QUEUE) {
- const struct mlx5_rxq_ctrl *ctrl = priv->verbs_alloc_ctx.obj;
-
- socket = ctrl->socket;
+ uint32_t size;
+ uint32_t size2;
+ void *mem;
+
+ if (pool->curr == pool->last) {
+ size = pool->curr - pool->free_arr;
+ size2 = size * MLX5_ID_GENERATION_ARRAY_FACTOR;
+ MLX5_ASSERT(size2 > size);
+ mem = rte_malloc("", size2 * sizeof(uint32_t), 0);
+ if (!mem) {
+ DRV_LOG(ERR, "can't allocate mem for id pool");
+ rte_errno = ENOMEM;
+ return -rte_errno;
+ }
+ memcpy(mem, pool->free_arr, size * sizeof(uint32_t));
+ rte_free(pool->free_arr);
+ pool->free_arr = mem;
+ pool->curr = pool->free_arr + size;
+ pool->last = pool->free_arr + size2;
}
- assert(data != NULL);
- ret = rte_malloc_socket(__func__, size, alignment, socket);
- if (!ret && size)
- rte_errno = ENOMEM;
- return ret;
+ *pool->curr = id;
+ pool->curr++;
+ return 0;
}
/**
- * Verbs callback to free a memory.
+ * Initialize the counters management structure.
*
- * @param[in] ptr
- * A pointer to the memory to free.
- * @param[in] data
- * A pointer to the callback data.
+ * @param[in] sh
+ * Pointer to mlx5_ibv_shared object to free
*/
static void
-mlx5_free_verbs_buf(void *ptr, void *data __rte_unused)
+mlx5_flow_counters_mng_init(struct mlx5_ibv_shared *sh)
{
- assert(data != NULL);
- rte_free(ptr);
+ uint8_t i;
+
+ TAILQ_INIT(&sh->cmng.flow_counters);
+ for (i = 0; i < RTE_DIM(sh->cmng.ccont); ++i)
+ TAILQ_INIT(&sh->cmng.ccont[i].pool_list);
}
/**
- * DPDK callback to close the device.
+ * Destroy all the resources allocated for a counter memory management.
*
- * Destroy all queues and objects, free memory.
+ * @param[in] mng
+ * Pointer to the memory management structure.
+ */
+static void
+mlx5_flow_destroy_counter_stat_mem_mng(struct mlx5_counter_stats_mem_mng *mng)
+{
+ uint8_t *mem = (uint8_t *)(uintptr_t)mng->raws[0].data;
+
+ LIST_REMOVE(mng, next);
+ claim_zero(mlx5_devx_cmd_destroy(mng->dm));
+ claim_zero(mlx5_glue->devx_umem_dereg(mng->umem));
+ rte_free(mem);
+}
+
+/**
+ * Close and release all the resources of the counters management.
*
- * @param dev
- * Pointer to Ethernet device structure.
+ * @param[in] sh
+ * Pointer to mlx5_ibv_shared object to free.
*/
static void
-mlx5_dev_close(struct rte_eth_dev *dev)
+mlx5_flow_counters_mng_close(struct mlx5_ibv_shared *sh)
{
- struct priv *priv = dev->data->dev_private;
- unsigned int i;
- int ret;
+ struct mlx5_counter_stats_mem_mng *mng;
+ uint8_t i;
+ int j;
+ int retries = 1024;
+
+ rte_errno = 0;
+ while (--retries) {
+ rte_eal_alarm_cancel(mlx5_flow_query_alarm, sh);
+ if (rte_errno != EINPROGRESS)
+ break;
+ rte_pause();
+ }
+ for (i = 0; i < RTE_DIM(sh->cmng.ccont); ++i) {
+ struct mlx5_flow_counter_pool *pool;
+ uint32_t batch = !!(i % 2);
- DRV_LOG(DEBUG, "port %u closing device \"%s\"",
- dev->data->port_id,
- ((priv->ctx != NULL) ? priv->ctx->device->name : ""));
- /* In case mlx5_dev_stop() has not been called. */
- mlx5_dev_interrupt_handler_uninstall(dev);
- mlx5_traffic_disable(dev);
- /* Prevent crashes when queues are still in use. */
- dev->rx_pkt_burst = removed_rx_burst;
- dev->tx_pkt_burst = removed_tx_burst;
- if (priv->rxqs != NULL) {
- /* XXX race condition if mlx5_rx_burst() is still running. */
- usleep(1000);
- for (i = 0; (i != priv->rxqs_n); ++i)
- mlx5_rxq_release(dev, i);
- priv->rxqs_n = 0;
- priv->rxqs = NULL;
+ if (!sh->cmng.ccont[i].pools)
+ continue;
+ pool = TAILQ_FIRST(&sh->cmng.ccont[i].pool_list);
+ while (pool) {
+ if (batch) {
+ if (pool->min_dcs)
+ claim_zero
+ (mlx5_devx_cmd_destroy(pool->min_dcs));
+ }
+ for (j = 0; j < MLX5_COUNTERS_PER_POOL; ++j) {
+ if (pool->counters_raw[j].action)
+ claim_zero
+ (mlx5_glue->destroy_flow_action
+ (pool->counters_raw[j].action));
+ if (!batch && pool->counters_raw[j].dcs)
+ claim_zero(mlx5_devx_cmd_destroy
+ (pool->counters_raw[j].dcs));
+ }
+ TAILQ_REMOVE(&sh->cmng.ccont[i].pool_list, pool,
+ next);
+ rte_free(pool);
+ pool = TAILQ_FIRST(&sh->cmng.ccont[i].pool_list);
+ }
+ rte_free(sh->cmng.ccont[i].pools);
}
- if (priv->txqs != NULL) {
- /* XXX race condition if mlx5_tx_burst() is still running. */
- usleep(1000);
- for (i = 0; (i != priv->txqs_n); ++i)
- mlx5_txq_release(dev, i);
- priv->txqs_n = 0;
- priv->txqs = NULL;
+ mng = LIST_FIRST(&sh->cmng.mem_mngs);
+ while (mng) {
+ mlx5_flow_destroy_counter_stat_mem_mng(mng);
+ mng = LIST_FIRST(&sh->cmng.mem_mngs);
}
- mlx5_flow_delete_drop_queue(dev);
- mlx5_mprq_free_mp(dev);
- mlx5_mr_release(dev);
- if (priv->pd != NULL) {
- assert(priv->ctx != NULL);
- claim_zero(mlx5_glue->dealloc_pd(priv->pd));
- claim_zero(mlx5_glue->close_device(priv->ctx));
- } else
- assert(priv->ctx == NULL);
- if (priv->rss_conf.rss_key != NULL)
- rte_free(priv->rss_conf.rss_key);
- if (priv->reta_idx != NULL)
- rte_free(priv->reta_idx);
- if (priv->primary_socket)
- mlx5_socket_uninit(dev);
- if (priv->config.vf)
- mlx5_nl_mac_addr_flush(dev);
- if (priv->nl_socket >= 0)
- close(priv->nl_socket);
- ret = mlx5_hrxq_ibv_verify(dev);
- if (ret)
- DRV_LOG(WARNING, "port %u some hash Rx queue still remain",
- dev->data->port_id);
- ret = mlx5_ind_table_ibv_verify(dev);
- if (ret)
- DRV_LOG(WARNING, "port %u some indirection table still remain",
- dev->data->port_id);
- ret = mlx5_rxq_ibv_verify(dev);
- if (ret)
- DRV_LOG(WARNING, "port %u some Verbs Rx queue still remain",
- dev->data->port_id);
- ret = mlx5_rxq_verify(dev);
- if (ret)
- DRV_LOG(WARNING, "port %u some Rx queues still remain",
- dev->data->port_id);
- ret = mlx5_txq_ibv_verify(dev);
- if (ret)
- DRV_LOG(WARNING, "port %u some Verbs Tx queue still remain",
- dev->data->port_id);
- ret = mlx5_txq_verify(dev);
- if (ret)
- DRV_LOG(WARNING, "port %u some Tx queues still remain",
- dev->data->port_id);
- ret = mlx5_flow_verify(dev);
- if (ret)
- DRV_LOG(WARNING, "port %u some flows still remain",
- dev->data->port_id);
- memset(priv, 0, sizeof(*priv));
+ memset(&sh->cmng, 0, sizeof(sh->cmng));
}
-const struct eth_dev_ops mlx5_dev_ops = {
- .dev_configure = mlx5_dev_configure,
- .dev_start = mlx5_dev_start,
- .dev_stop = mlx5_dev_stop,
- .dev_set_link_down = mlx5_set_link_down,
- .dev_set_link_up = mlx5_set_link_up,
- .dev_close = mlx5_dev_close,
- .promiscuous_enable = mlx5_promiscuous_enable,
- .promiscuous_disable = mlx5_promiscuous_disable,
- .allmulticast_enable = mlx5_allmulticast_enable,
- .allmulticast_disable = mlx5_allmulticast_disable,
- .link_update = mlx5_link_update,
- .stats_get = mlx5_stats_get,
- .stats_reset = mlx5_stats_reset,
- .xstats_get = mlx5_xstats_get,
- .xstats_reset = mlx5_xstats_reset,
- .xstats_get_names = mlx5_xstats_get_names,
- .dev_infos_get = mlx5_dev_infos_get,
- .dev_supported_ptypes_get = mlx5_dev_supported_ptypes_get,
- .vlan_filter_set = mlx5_vlan_filter_set,
- .rx_queue_setup = mlx5_rx_queue_setup,
- .tx_queue_setup = mlx5_tx_queue_setup,
- .rx_queue_release = mlx5_rx_queue_release,
- .tx_queue_release = mlx5_tx_queue_release,
- .flow_ctrl_get = mlx5_dev_get_flow_ctrl,
- .flow_ctrl_set = mlx5_dev_set_flow_ctrl,
- .mac_addr_remove = mlx5_mac_addr_remove,
- .mac_addr_add = mlx5_mac_addr_add,
- .mac_addr_set = mlx5_mac_addr_set,
- .set_mc_addr_list = mlx5_set_mc_addr_list,
- .mtu_set = mlx5_dev_set_mtu,
- .vlan_strip_queue_set = mlx5_vlan_strip_queue_set,
- .vlan_offload_set = mlx5_vlan_offload_set,
- .reta_update = mlx5_dev_rss_reta_update,
- .reta_query = mlx5_dev_rss_reta_query,
- .rss_hash_update = mlx5_rss_hash_update,
- .rss_hash_conf_get = mlx5_rss_hash_conf_get,
- .filter_ctrl = mlx5_dev_filter_ctrl,
- .rx_descriptor_status = mlx5_rx_descriptor_status,
- .tx_descriptor_status = mlx5_tx_descriptor_status,
- .rx_queue_intr_enable = mlx5_rx_intr_enable,
- .rx_queue_intr_disable = mlx5_rx_intr_disable,
- .is_removed = mlx5_is_removed,
-};
+/**
+ * Extract pdn of PD object using DV API.
+ *
+ * @param[in] pd
+ * Pointer to the verbs PD object.
+ * @param[out] pdn
+ * Pointer to the PD object number variable.
+ *
+ * @return
+ * 0 on success, error value otherwise.
+ */
+#ifdef HAVE_IBV_FLOW_DV_SUPPORT
+static int
+mlx5_get_pdn(struct ibv_pd *pd __rte_unused, uint32_t *pdn __rte_unused)
+{
+ struct mlx5dv_obj obj;
+ struct mlx5dv_pd pd_info;
+ int ret = 0;
-static const struct eth_dev_ops mlx5_dev_sec_ops = {
- .stats_get = mlx5_stats_get,
- .stats_reset = mlx5_stats_reset,
- .xstats_get = mlx5_xstats_get,
- .xstats_reset = mlx5_xstats_reset,
- .xstats_get_names = mlx5_xstats_get_names,
- .dev_infos_get = mlx5_dev_infos_get,
- .rx_descriptor_status = mlx5_rx_descriptor_status,
- .tx_descriptor_status = mlx5_tx_descriptor_status,
-};
+ obj.pd.in = pd;
+ obj.pd.out = &pd_info;
+ ret = mlx5_glue->dv_init_obj(&obj, MLX5DV_OBJ_PD);
+ if (ret) {
+ DRV_LOG(DEBUG, "Fail to get PD object info");
+ return ret;
+ }
+ *pdn = pd_info.pdn;
+ return 0;
+}
+#endif /* HAVE_IBV_FLOW_DV_SUPPORT */
-/* Available operators in flow isolated mode. */
-const struct eth_dev_ops mlx5_dev_ops_isolate = {
- .dev_configure = mlx5_dev_configure,
- .dev_start = mlx5_dev_start,
- .dev_stop = mlx5_dev_stop,
- .dev_set_link_down = mlx5_set_link_down,
- .dev_set_link_up = mlx5_set_link_up,
- .dev_close = mlx5_dev_close,
- .link_update = mlx5_link_update,
- .stats_get = mlx5_stats_get,
- .stats_reset = mlx5_stats_reset,
- .xstats_get = mlx5_xstats_get,
- .xstats_reset = mlx5_xstats_reset,
- .xstats_get_names = mlx5_xstats_get_names,
- .dev_infos_get = mlx5_dev_infos_get,
- .dev_supported_ptypes_get = mlx5_dev_supported_ptypes_get,
- .vlan_filter_set = mlx5_vlan_filter_set,
- .rx_queue_setup = mlx5_rx_queue_setup,
- .tx_queue_setup = mlx5_tx_queue_setup,
- .rx_queue_release = mlx5_rx_queue_release,
- .tx_queue_release = mlx5_tx_queue_release,
- .flow_ctrl_get = mlx5_dev_get_flow_ctrl,
- .flow_ctrl_set = mlx5_dev_set_flow_ctrl,
- .mac_addr_remove = mlx5_mac_addr_remove,
- .mac_addr_add = mlx5_mac_addr_add,
- .mac_addr_set = mlx5_mac_addr_set,
- .set_mc_addr_list = mlx5_set_mc_addr_list,
- .mtu_set = mlx5_dev_set_mtu,
- .vlan_strip_queue_set = mlx5_vlan_strip_queue_set,
- .vlan_offload_set = mlx5_vlan_offload_set,
- .filter_ctrl = mlx5_dev_filter_ctrl,
- .rx_descriptor_status = mlx5_rx_descriptor_status,
- .tx_descriptor_status = mlx5_tx_descriptor_status,
- .rx_queue_intr_enable = mlx5_rx_intr_enable,
- .rx_queue_intr_disable = mlx5_rx_intr_disable,
- .is_removed = mlx5_is_removed,
-};
-
-static struct {
- struct rte_pci_addr pci_addr; /* associated PCI address */
- uint32_t ports; /* physical ports bitfield. */
-} mlx5_dev[32];
-
-/**
- * Get device index in mlx5_dev[] from PCI bus address.
- *
- * @param[in] pci_addr
- * PCI bus address to look for.
- *
- * @return
- * mlx5_dev[] index on success, -1 on failure.
- */
static int
-mlx5_dev_idx(struct rte_pci_addr *pci_addr)
+mlx5_config_doorbell_mapping_env(const struct mlx5_dev_config *config)
{
- unsigned int i;
- int ret = -1;
-
- assert(pci_addr != NULL);
- for (i = 0; (i != RTE_DIM(mlx5_dev)); ++i) {
- if ((mlx5_dev[i].pci_addr.domain == pci_addr->domain) &&
- (mlx5_dev[i].pci_addr.bus == pci_addr->bus) &&
- (mlx5_dev[i].pci_addr.devid == pci_addr->devid) &&
- (mlx5_dev[i].pci_addr.function == pci_addr->function))
- return i;
- if ((mlx5_dev[i].ports == 0) && (ret == -1))
- ret = i;
- }
- return ret;
+ char *env;
+ int value;
+
+ MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
+ /* Get environment variable to store. */
+ env = getenv(MLX5_SHUT_UP_BF);
+ value = env ? !!strcmp(env, "0") : MLX5_ARG_UNSET;
+ if (config->dbnc == MLX5_ARG_UNSET)
+ setenv(MLX5_SHUT_UP_BF, MLX5_SHUT_UP_BF_DEFAULT, 1);
+ else
+ setenv(MLX5_SHUT_UP_BF,
+ config->dbnc == MLX5_TXDB_NCACHED ? "1" : "0", 1);
+ return value;
+}
+
+static void
+mlx5_restore_doorbell_mapping_env(int value)
+{
+ MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
+ /* Restore the original environment variable state. */
+ if (value == MLX5_ARG_UNSET)
+ unsetenv(MLX5_SHUT_UP_BF);
+ else
+ setenv(MLX5_SHUT_UP_BF, value ? "1" : "0", 1);
}
/**
- * Verify and store value for device argument.
+ * Allocate shared IB device context. If there is multiport device the
+ * master and representors will share this context, if there is single
+ * port dedicated IB device, the context will be used by only given
+ * port due to unification.
*
- * @param[in] key
- * Key argument to verify.
- * @param[in] val
- * Value associated with key.
- * @param opaque
- * User data.
+ * Routine first searches the context for the specified IB device name,
+ * if found the shared context assumed and reference counter is incremented.
+ * If no context found the new one is created and initialized with specified
+ * IB device context and parameters.
+ *
+ * @param[in] spawn
+ * Pointer to the IB device attributes (name, port, etc).
+ * @param[in] config
+ * Pointer to device configuration structure.
*
* @return
- * 0 on success, a negative errno value otherwise and rte_errno is set.
+ * Pointer to mlx5_ibv_shared object on success,
+ * otherwise NULL and rte_errno is set.
*/
-static int
-mlx5_args_check(const char *key, const char *val, void *opaque)
+static struct mlx5_ibv_shared *
+mlx5_alloc_shared_ibctx(const struct mlx5_dev_spawn_data *spawn,
+ const struct mlx5_dev_config *config)
{
- struct mlx5_dev_config *config = opaque;
- unsigned long tmp;
+ struct mlx5_ibv_shared *sh;
+ int dbmap_env;
+ int err = 0;
+ uint32_t i;
+#ifdef HAVE_IBV_FLOW_DV_SUPPORT
+ struct mlx5_devx_tis_attr tis_attr = { 0 };
+#endif
- errno = 0;
- tmp = strtoul(val, NULL, 0);
- if (errno) {
- rte_errno = errno;
- DRV_LOG(WARNING, "%s: \"%s\" is not a valid integer", key, val);
- return -rte_errno;
+ MLX5_ASSERT(spawn);
+ /* Secondary process should not create the shared context. */
+ MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
+ pthread_mutex_lock(&mlx5_ibv_list_mutex);
+ /* Search for IB context by device name. */
+ LIST_FOREACH(sh, &mlx5_ibv_list, next) {
+ if (!strcmp(sh->ibdev_name, spawn->ibv_dev->name)) {
+ sh->refcnt++;
+ goto exit;
+ }
}
- if (strcmp(MLX5_RXQ_CQE_COMP_EN, key) == 0) {
- config->cqe_comp = !!tmp;
- } else if (strcmp(MLX5_RX_MPRQ_EN, key) == 0) {
- config->mprq.enabled = !!tmp;
- } else if (strcmp(MLX5_RX_MPRQ_LOG_STRIDE_NUM, key) == 0) {
- config->mprq.stride_num_n = tmp;
- } else if (strcmp(MLX5_RX_MPRQ_MAX_MEMCPY_LEN, key) == 0) {
- config->mprq.max_memcpy_len = tmp;
- } else if (strcmp(MLX5_RXQS_MIN_MPRQ, key) == 0) {
- config->mprq.min_rxqs_num = tmp;
- } else if (strcmp(MLX5_TXQ_INLINE, key) == 0) {
- config->txq_inline = tmp;
- } else if (strcmp(MLX5_TXQS_MIN_INLINE, key) == 0) {
- config->txqs_inline = tmp;
- } else if (strcmp(MLX5_TXQ_MPW_EN, key) == 0) {
- config->mps = !!tmp ? config->mps : 0;
- } else if (strcmp(MLX5_TXQ_MPW_HDR_DSEG_EN, key) == 0) {
- config->mpw_hdr_dseg = !!tmp;
- } else if (strcmp(MLX5_TXQ_MAX_INLINE_LEN, key) == 0) {
- config->inline_max_packet_sz = tmp;
- } else if (strcmp(MLX5_TX_VEC_EN, key) == 0) {
- config->tx_vec_en = !!tmp;
- } else if (strcmp(MLX5_RX_VEC_EN, key) == 0) {
- config->rx_vec_en = !!tmp;
- } else if (strcmp(MLX5_L3_VXLAN_EN, key) == 0) {
- config->l3_vxlan_en = !!tmp;
- } else if (strcmp(MLX5_VF_NL_EN, key) == 0) {
- config->vf_nl_en = !!tmp;
+ /* No device found, we have to create new shared context. */
+ MLX5_ASSERT(spawn->max_port);
+ sh = rte_zmalloc("ethdev shared ib context",
+ sizeof(struct mlx5_ibv_shared) +
+ spawn->max_port *
+ sizeof(struct mlx5_ibv_shared_port),
+ RTE_CACHE_LINE_SIZE);
+ if (!sh) {
+ DRV_LOG(ERR, "shared context allocation failure");
+ rte_errno = ENOMEM;
+ goto exit;
+ }
+ /*
+ * Configure environment variable "MLX5_BF_SHUT_UP"
+ * before the device creation. The rdma_core library
+ * checks the variable at device creation and
+ * stores the result internally.
+ */
+ dbmap_env = mlx5_config_doorbell_mapping_env(config);
+ /* Try to open IB device with DV first, then usual Verbs. */
+ errno = 0;
+ sh->ctx = mlx5_glue->dv_open_device(spawn->ibv_dev);
+ if (sh->ctx) {
+ sh->devx = 1;
+ DRV_LOG(DEBUG, "DevX is supported");
+ /* The device is created, no need for environment. */
+ mlx5_restore_doorbell_mapping_env(dbmap_env);
} else {
- DRV_LOG(WARNING, "%s: unknown parameter", key);
- rte_errno = EINVAL;
- return -rte_errno;
+ /* The environment variable is still configured. */
+ sh->ctx = mlx5_glue->open_device(spawn->ibv_dev);
+ err = errno ? errno : ENODEV;
+ /*
+ * The environment variable is not needed anymore,
+ * all device creation attempts are completed.
+ */
+ mlx5_restore_doorbell_mapping_env(dbmap_env);
+ if (!sh->ctx)
+ goto error;
+ DRV_LOG(DEBUG, "DevX is NOT supported");
}
- return 0;
+ err = mlx5_glue->query_device_ex(sh->ctx, NULL, &sh->device_attr);
+ if (err) {
+ DRV_LOG(DEBUG, "ibv_query_device_ex() failed");
+ goto error;
+ }
+ sh->refcnt = 1;
+ sh->max_port = spawn->max_port;
+ strncpy(sh->ibdev_name, sh->ctx->device->name,
+ sizeof(sh->ibdev_name));
+ strncpy(sh->ibdev_path, sh->ctx->device->ibdev_path,
+ sizeof(sh->ibdev_path));
+ pthread_mutex_init(&sh->intr_mutex, NULL);
+ /*
+ * Setting port_id to max unallowed value means
+ * there is no interrupt subhandler installed for
+ * the given port index i.
+ */
+ for (i = 0; i < sh->max_port; i++) {
+ sh->port[i].ih_port_id = RTE_MAX_ETHPORTS;
+ sh->port[i].devx_ih_port_id = RTE_MAX_ETHPORTS;
+ }
+ sh->pd = mlx5_glue->alloc_pd(sh->ctx);
+ if (sh->pd == NULL) {
+ DRV_LOG(ERR, "PD allocation failure");
+ err = ENOMEM;
+ goto error;
+ }
+#ifdef HAVE_IBV_FLOW_DV_SUPPORT
+ if (sh->devx) {
+ err = mlx5_get_pdn(sh->pd, &sh->pdn);
+ if (err) {
+ DRV_LOG(ERR, "Fail to extract pdn from PD");
+ goto error;
+ }
+ sh->td = mlx5_devx_cmd_create_td(sh->ctx);
+ if (!sh->td) {
+ DRV_LOG(ERR, "TD allocation failure");
+ err = ENOMEM;
+ goto error;
+ }
+ tis_attr.transport_domain = sh->td->id;
+ sh->tis = mlx5_devx_cmd_create_tis(sh->ctx, &tis_attr);
+ if (!sh->tis) {
+ DRV_LOG(ERR, "TIS allocation failure");
+ err = ENOMEM;
+ goto error;
+ }
+ }
+ sh->flow_id_pool = mlx5_flow_id_pool_alloc(UINT32_MAX);
+ if (!sh->flow_id_pool) {
+ DRV_LOG(ERR, "can't create flow id pool");
+ err = ENOMEM;
+ goto error;
+ }
+#endif /* HAVE_IBV_FLOW_DV_SUPPORT */
+ /*
+ * Once the device is added to the list of memory event
+ * callback, its global MR cache table cannot be expanded
+ * on the fly because of deadlock. If it overflows, lookup
+ * should be done by searching MR list linearly, which is slow.
+ *
+ * At this point the device is not added to the memory
+ * event list yet, context is just being created.
+ */
+ err = mlx5_mr_btree_init(&sh->mr.cache,
+ MLX5_MR_BTREE_CACHE_N * 2,
+ spawn->pci_dev->device.numa_node);
+ if (err) {
+ err = rte_errno;
+ goto error;
+ }
+ mlx5_flow_counters_mng_init(sh);
+ /* Add device to memory callback list. */
+ rte_rwlock_write_lock(&mlx5_shared_data->mem_event_rwlock);
+ LIST_INSERT_HEAD(&mlx5_shared_data->mem_event_cb_list,
+ sh, mem_event_cb);
+ rte_rwlock_write_unlock(&mlx5_shared_data->mem_event_rwlock);
+ /* Add context to the global device list. */
+ LIST_INSERT_HEAD(&mlx5_ibv_list, sh, next);
+exit:
+ pthread_mutex_unlock(&mlx5_ibv_list_mutex);
+ return sh;
+error:
+ pthread_mutex_unlock(&mlx5_ibv_list_mutex);
+ MLX5_ASSERT(sh);
+ if (sh->tis)
+ claim_zero(mlx5_devx_cmd_destroy(sh->tis));
+ if (sh->td)
+ claim_zero(mlx5_devx_cmd_destroy(sh->td));
+ if (sh->pd)
+ claim_zero(mlx5_glue->dealloc_pd(sh->pd));
+ if (sh->ctx)
+ claim_zero(mlx5_glue->close_device(sh->ctx));
+ if (sh->flow_id_pool)
+ mlx5_flow_id_pool_release(sh->flow_id_pool);
+ rte_free(sh);
+ MLX5_ASSERT(err > 0);
+ rte_errno = err;
+ return NULL;
}
/**
- * Parse device parameters.
+ * Free shared IB device context. Decrement counter and if zero free
+ * all allocated resources and close handles.
*
- * @param config
- * Pointer to device configuration structure.
- * @param devargs
- * Device arguments structure.
- *
- * @return
- * 0 on success, a negative errno value otherwise and rte_errno is set.
+ * @param[in] sh
+ * Pointer to mlx5_ibv_shared object to free
*/
-static int
-mlx5_args(struct mlx5_dev_config *config, struct rte_devargs *devargs)
+static void
+mlx5_free_shared_ibctx(struct mlx5_ibv_shared *sh)
{
- const char **params = (const char *[]){
- MLX5_RXQ_CQE_COMP_EN,
- MLX5_RX_MPRQ_EN,
- MLX5_RX_MPRQ_LOG_STRIDE_NUM,
- MLX5_RX_MPRQ_MAX_MEMCPY_LEN,
- MLX5_RXQS_MIN_MPRQ,
- MLX5_TXQ_INLINE,
- MLX5_TXQS_MIN_INLINE,
- MLX5_TXQ_MPW_EN,
- MLX5_TXQ_MPW_HDR_DSEG_EN,
- MLX5_TXQ_MAX_INLINE_LEN,
- MLX5_TX_VEC_EN,
- MLX5_RX_VEC_EN,
- MLX5_L3_VXLAN_EN,
- MLX5_VF_NL_EN,
- NULL,
- };
- struct rte_kvargs *kvlist;
- int ret = 0;
- int i;
+ pthread_mutex_lock(&mlx5_ibv_list_mutex);
+#ifdef RTE_LIBRTE_MLX5_DEBUG
+ /* Check the object presence in the list. */
+ struct mlx5_ibv_shared *lctx;
- if (devargs == NULL)
- return 0;
- /* Following UGLY cast is done to pass checkpatch. */
- kvlist = rte_kvargs_parse(devargs->args, params);
- if (kvlist == NULL)
- return 0;
- /* Process parameters. */
- for (i = 0; (params[i] != NULL); ++i) {
- if (rte_kvargs_count(kvlist, params[i])) {
- ret = rte_kvargs_process(kvlist, params[i],
- mlx5_args_check, config);
- if (ret) {
- rte_errno = EINVAL;
- rte_kvargs_free(kvlist);
- return -rte_errno;
- }
- }
+ LIST_FOREACH(lctx, &mlx5_ibv_list, next)
+ if (lctx == sh)
+ break;
+ MLX5_ASSERT(lctx);
+ if (lctx != sh) {
+ DRV_LOG(ERR, "Freeing non-existing shared IB context");
+ goto exit;
}
- rte_kvargs_free(kvlist);
- return 0;
+#endif
+ MLX5_ASSERT(sh);
+ MLX5_ASSERT(sh->refcnt);
+ /* Secondary process should not free the shared context. */
+ MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
+ if (--sh->refcnt)
+ goto exit;
+ /* Remove from memory callback device list. */
+ rte_rwlock_write_lock(&mlx5_shared_data->mem_event_rwlock);
+ LIST_REMOVE(sh, mem_event_cb);
+ rte_rwlock_write_unlock(&mlx5_shared_data->mem_event_rwlock);
+ /* Release created Memory Regions. */
+ mlx5_mr_release(sh);
+ /* Remove context from the global device list. */
+ LIST_REMOVE(sh, next);
+ /*
+ * Ensure there is no async event handler installed.
+ * Only primary process handles async device events.
+ **/
+ mlx5_flow_counters_mng_close(sh);
+ MLX5_ASSERT(!sh->intr_cnt);
+ if (sh->intr_cnt)
+ mlx5_intr_callback_unregister
+ (&sh->intr_handle, mlx5_dev_interrupt_handler, sh);
+#ifdef HAVE_MLX5_DEVX_ASYNC_SUPPORT
+ if (sh->devx_intr_cnt) {
+ if (sh->intr_handle_devx.fd)
+ rte_intr_callback_unregister(&sh->intr_handle_devx,
+ mlx5_dev_interrupt_handler_devx, sh);
+ if (sh->devx_comp)
+ mlx5dv_devx_destroy_cmd_comp(sh->devx_comp);
+ }
+#endif
+ pthread_mutex_destroy(&sh->intr_mutex);
+ if (sh->pd)
+ claim_zero(mlx5_glue->dealloc_pd(sh->pd));
+ if (sh->tis)
+ claim_zero(mlx5_devx_cmd_destroy(sh->tis));
+ if (sh->td)
+ claim_zero(mlx5_devx_cmd_destroy(sh->td));
+ if (sh->ctx)
+ claim_zero(mlx5_glue->close_device(sh->ctx));
+ if (sh->flow_id_pool)
+ mlx5_flow_id_pool_release(sh->flow_id_pool);
+ rte_free(sh);
+exit:
+ pthread_mutex_unlock(&mlx5_ibv_list_mutex);
}
-static struct rte_pci_driver mlx5_driver;
-
-/*
- * Reserved UAR address space for TXQ UAR(hw doorbell) mapping, process
- * local resource used by both primary and secondary to avoid duplicate
- * reservation.
- * The space has to be available on both primary and secondary process,
- * TXQ UAR maps to this area using fixed mmap w/o double check.
+/**
+ * Destroy table hash list and all the root entries per domain.
+ *
+ * @param[in] priv
+ * Pointer to the private device data structure.
*/
-static void *uar_base;
-
-static int
-find_lower_va_bound(const struct rte_memseg_list *msl __rte_unused,
- const struct rte_memseg *ms, void *arg)
+static void
+mlx5_free_table_hash_list(struct mlx5_priv *priv)
{
- void **addr = arg;
-
- if (*addr == NULL)
- *addr = ms->addr;
- else
- *addr = RTE_MIN(*addr, ms->addr);
+ struct mlx5_ibv_shared *sh = priv->sh;
+ struct mlx5_flow_tbl_data_entry *tbl_data;
+ union mlx5_flow_tbl_key table_key = {
+ {
+ .table_id = 0,
+ .reserved = 0,
+ .domain = 0,
+ .direction = 0,
+ }
+ };
+ struct mlx5_hlist_entry *pos;
- return 0;
+ if (!sh->flow_tbls)
+ return;
+ pos = mlx5_hlist_lookup(sh->flow_tbls, table_key.v64);
+ if (pos) {
+ tbl_data = container_of(pos, struct mlx5_flow_tbl_data_entry,
+ entry);
+ MLX5_ASSERT(tbl_data);
+ mlx5_hlist_remove(sh->flow_tbls, pos);
+ rte_free(tbl_data);
+ }
+ table_key.direction = 1;
+ pos = mlx5_hlist_lookup(sh->flow_tbls, table_key.v64);
+ if (pos) {
+ tbl_data = container_of(pos, struct mlx5_flow_tbl_data_entry,
+ entry);
+ MLX5_ASSERT(tbl_data);
+ mlx5_hlist_remove(sh->flow_tbls, pos);
+ rte_free(tbl_data);
+ }
+ table_key.direction = 0;
+ table_key.domain = 1;
+ pos = mlx5_hlist_lookup(sh->flow_tbls, table_key.v64);
+ if (pos) {
+ tbl_data = container_of(pos, struct mlx5_flow_tbl_data_entry,
+ entry);
+ MLX5_ASSERT(tbl_data);
+ mlx5_hlist_remove(sh->flow_tbls, pos);
+ rte_free(tbl_data);
+ }
+ mlx5_hlist_destroy(sh->flow_tbls, NULL, NULL);
}
/**
- * Reserve UAR address space for primary process.
+ * Initialize flow table hash list and create the root tables entry
+ * for each domain.
*
- * @param[in] dev
- * Pointer to Ethernet device.
+ * @param[in] priv
+ * Pointer to the private device data structure.
*
* @return
- * 0 on success, a negative errno value otherwise and rte_errno is set.
+ * Zero on success, positive error code otherwise.
*/
static int
-mlx5_uar_init_primary(struct rte_eth_dev *dev)
+mlx5_alloc_table_hash_list(struct mlx5_priv *priv)
{
- struct priv *priv = dev->data->dev_private;
- void *addr = (void *)0;
+ struct mlx5_ibv_shared *sh = priv->sh;
+ char s[MLX5_HLIST_NAMESIZE];
+ int err = 0;
- if (uar_base) { /* UAR address space mapped. */
- priv->uar_base = uar_base;
- return 0;
+ MLX5_ASSERT(sh);
+ snprintf(s, sizeof(s), "%s_flow_table", priv->sh->ibdev_name);
+ sh->flow_tbls = mlx5_hlist_create(s, MLX5_FLOW_TABLE_HLIST_ARRAY_SIZE);
+ if (!sh->flow_tbls) {
+ DRV_LOG(ERR, "flow tables with hash creation failed.\n");
+ err = ENOMEM;
+ return err;
}
- /* find out lower bound of hugepage segments */
- rte_memseg_walk(find_lower_va_bound, &addr);
+#ifndef HAVE_MLX5DV_DR
+ /*
+ * In case we have not DR support, the zero tables should be created
+ * because DV expect to see them even if they cannot be created by
+ * RDMA-CORE.
+ */
+ union mlx5_flow_tbl_key table_key = {
+ {
+ .table_id = 0,
+ .reserved = 0,
+ .domain = 0,
+ .direction = 0,
+ }
+ };
+ struct mlx5_flow_tbl_data_entry *tbl_data = rte_zmalloc(NULL,
+ sizeof(*tbl_data), 0);
- /* keep distance to hugepages to minimize potential conflicts. */
- addr = RTE_PTR_SUB(addr, MLX5_UAR_OFFSET + MLX5_UAR_SIZE);
- /* anonymous mmap, no real memory consumption. */
- addr = mmap(addr, MLX5_UAR_SIZE,
- PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
- if (addr == MAP_FAILED) {
- DRV_LOG(ERR,
- "port %u failed to reserve UAR address space, please"
- " adjust MLX5_UAR_SIZE or try --base-virtaddr",
- dev->data->port_id);
- rte_errno = ENOMEM;
- return -rte_errno;
+ if (!tbl_data) {
+ err = ENOMEM;
+ goto error;
}
- /* Accept either same addr or a new addr returned from mmap if target
- * range occupied.
- */
- DRV_LOG(INFO, "port %u reserved UAR address space: %p",
- dev->data->port_id, addr);
- priv->uar_base = addr; /* for primary and secondary UAR re-mmap. */
- uar_base = addr; /* process local, don't reserve again. */
- return 0;
+ tbl_data->entry.key = table_key.v64;
+ err = mlx5_hlist_insert(sh->flow_tbls, &tbl_data->entry);
+ if (err)
+ goto error;
+ rte_atomic32_init(&tbl_data->tbl.refcnt);
+ rte_atomic32_inc(&tbl_data->tbl.refcnt);
+ table_key.direction = 1;
+ tbl_data = rte_zmalloc(NULL, sizeof(*tbl_data), 0);
+ if (!tbl_data) {
+ err = ENOMEM;
+ goto error;
+ }
+ tbl_data->entry.key = table_key.v64;
+ err = mlx5_hlist_insert(sh->flow_tbls, &tbl_data->entry);
+ if (err)
+ goto error;
+ rte_atomic32_init(&tbl_data->tbl.refcnt);
+ rte_atomic32_inc(&tbl_data->tbl.refcnt);
+ table_key.direction = 0;
+ table_key.domain = 1;
+ tbl_data = rte_zmalloc(NULL, sizeof(*tbl_data), 0);
+ if (!tbl_data) {
+ err = ENOMEM;
+ goto error;
+ }
+ tbl_data->entry.key = table_key.v64;
+ err = mlx5_hlist_insert(sh->flow_tbls, &tbl_data->entry);
+ if (err)
+ goto error;
+ rte_atomic32_init(&tbl_data->tbl.refcnt);
+ rte_atomic32_inc(&tbl_data->tbl.refcnt);
+ return err;
+error:
+ mlx5_free_table_hash_list(priv);
+#endif /* HAVE_MLX5DV_DR */
+ return err;
}
/**
- * Reserve UAR address space for secondary process, align with
- * primary process.
+ * Initialize DR related data within private structure.
+ * Routine checks the reference counter and does actual
+ * resources creation/initialization only if counter is zero.
*
- * @param[in] dev
- * Pointer to Ethernet device.
+ * @param[in] priv
+ * Pointer to the private device data structure.
*
* @return
- * 0 on success, a negative errno value otherwise and rte_errno is set.
+ * Zero on success, positive error code otherwise.
*/
static int
-mlx5_uar_init_secondary(struct rte_eth_dev *dev)
+mlx5_alloc_shared_dr(struct mlx5_priv *priv)
{
- struct priv *priv = dev->data->dev_private;
- void *addr;
+ struct mlx5_ibv_shared *sh = priv->sh;
+ char s[MLX5_HLIST_NAMESIZE];
+ int err = 0;
- assert(priv->uar_base);
- if (uar_base) { /* already reserved. */
- assert(uar_base == priv->uar_base);
+ if (!sh->flow_tbls)
+ err = mlx5_alloc_table_hash_list(priv);
+ else
+ DRV_LOG(DEBUG, "sh->flow_tbls[%p] already created, reuse\n",
+ (void *)sh->flow_tbls);
+ if (err)
+ return err;
+ /* Create tags hash list table. */
+ snprintf(s, sizeof(s), "%s_tags", sh->ibdev_name);
+ sh->tag_table = mlx5_hlist_create(s, MLX5_TAGS_HLIST_ARRAY_SIZE);
+ if (!sh->tag_table) {
+ DRV_LOG(ERR, "tags with hash creation failed.\n");
+ err = ENOMEM;
+ goto error;
+ }
+#ifdef HAVE_MLX5DV_DR
+ void *domain;
+
+ if (sh->dv_refcnt) {
+ /* Shared DV/DR structures is already initialized. */
+ sh->dv_refcnt++;
+ priv->dr_shared = 1;
return 0;
}
- /* anonymous mmap, no real memory consumption. */
- addr = mmap(priv->uar_base, MLX5_UAR_SIZE,
- PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
- if (addr == MAP_FAILED) {
- DRV_LOG(ERR, "port %u UAR mmap failed: %p size: %llu",
- dev->data->port_id, priv->uar_base, MLX5_UAR_SIZE);
- rte_errno = ENXIO;
- return -rte_errno;
+ /* Reference counter is zero, we should initialize structures. */
+ domain = mlx5_glue->dr_create_domain(sh->ctx,
+ MLX5DV_DR_DOMAIN_TYPE_NIC_RX);
+ if (!domain) {
+ DRV_LOG(ERR, "ingress mlx5dv_dr_create_domain failed");
+ err = errno;
+ goto error;
}
- if (priv->uar_base != addr) {
- DRV_LOG(ERR,
- "port %u UAR address %p size %llu occupied, please"
- " adjust MLX5_UAR_OFFSET or try EAL parameter"
- " --base-virtaddr",
- dev->data->port_id, priv->uar_base, MLX5_UAR_SIZE);
- rte_errno = ENXIO;
- return -rte_errno;
+ sh->rx_domain = domain;
+ domain = mlx5_glue->dr_create_domain(sh->ctx,
+ MLX5DV_DR_DOMAIN_TYPE_NIC_TX);
+ if (!domain) {
+ DRV_LOG(ERR, "egress mlx5dv_dr_create_domain failed");
+ err = errno;
+ goto error;
}
- uar_base = addr; /* process local, don't reserve again */
- DRV_LOG(INFO, "port %u reserved UAR address space: %p",
- dev->data->port_id, addr);
+ pthread_mutex_init(&sh->dv_mutex, NULL);
+ sh->tx_domain = domain;
+#ifdef HAVE_MLX5DV_DR_ESWITCH
+ if (priv->config.dv_esw_en) {
+ domain = mlx5_glue->dr_create_domain
+ (sh->ctx, MLX5DV_DR_DOMAIN_TYPE_FDB);
+ if (!domain) {
+ DRV_LOG(ERR, "FDB mlx5dv_dr_create_domain failed");
+ err = errno;
+ goto error;
+ }
+ sh->fdb_domain = domain;
+ sh->esw_drop_action = mlx5_glue->dr_create_flow_action_drop();
+ }
+#endif
+ sh->pop_vlan_action = mlx5_glue->dr_create_flow_action_pop_vlan();
+#endif /* HAVE_MLX5DV_DR */
+ sh->dv_refcnt++;
+ priv->dr_shared = 1;
return 0;
+error:
+ /* Rollback the created objects. */
+ if (sh->rx_domain) {
+ mlx5_glue->dr_destroy_domain(sh->rx_domain);
+ sh->rx_domain = NULL;
+ }
+ if (sh->tx_domain) {
+ mlx5_glue->dr_destroy_domain(sh->tx_domain);
+ sh->tx_domain = NULL;
+ }
+ if (sh->fdb_domain) {
+ mlx5_glue->dr_destroy_domain(sh->fdb_domain);
+ sh->fdb_domain = NULL;
+ }
+ if (sh->esw_drop_action) {
+ mlx5_glue->destroy_flow_action(sh->esw_drop_action);
+ sh->esw_drop_action = NULL;
+ }
+ if (sh->pop_vlan_action) {
+ mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
+ sh->pop_vlan_action = NULL;
+ }
+ if (sh->tag_table) {
+ /* tags should be destroyed with flow before. */
+ mlx5_hlist_destroy(sh->tag_table, NULL, NULL);
+ sh->tag_table = NULL;
+ }
+ mlx5_free_table_hash_list(priv);
+ return err;
+}
+
+/**
+ * Destroy DR related data within private structure.
+ *
+ * @param[in] priv
+ * Pointer to the private device data structure.
+ */
+static void
+mlx5_free_shared_dr(struct mlx5_priv *priv)
+{
+ struct mlx5_ibv_shared *sh;
+
+ if (!priv->dr_shared)
+ return;
+ priv->dr_shared = 0;
+ sh = priv->sh;
+ MLX5_ASSERT(sh);
+#ifdef HAVE_MLX5DV_DR
+ MLX5_ASSERT(sh->dv_refcnt);
+ if (sh->dv_refcnt && --sh->dv_refcnt)
+ return;
+ if (sh->rx_domain) {
+ mlx5_glue->dr_destroy_domain(sh->rx_domain);
+ sh->rx_domain = NULL;
+ }
+ if (sh->tx_domain) {
+ mlx5_glue->dr_destroy_domain(sh->tx_domain);
+ sh->tx_domain = NULL;
+ }
+#ifdef HAVE_MLX5DV_DR_ESWITCH
+ if (sh->fdb_domain) {
+ mlx5_glue->dr_destroy_domain(sh->fdb_domain);
+ sh->fdb_domain = NULL;
+ }
+ if (sh->esw_drop_action) {
+ mlx5_glue->destroy_flow_action(sh->esw_drop_action);
+ sh->esw_drop_action = NULL;
+ }
+#endif
+ if (sh->pop_vlan_action) {
+ mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
+ sh->pop_vlan_action = NULL;
+ }
+ pthread_mutex_destroy(&sh->dv_mutex);
+#endif /* HAVE_MLX5DV_DR */
+ if (sh->tag_table) {
+ /* tags should be destroyed with flow before. */
+ mlx5_hlist_destroy(sh->tag_table, NULL, NULL);
+ sh->tag_table = NULL;
+ }
+ mlx5_free_table_hash_list(priv);
+}
+
+/**
+ * Initialize shared data between primary and secondary process.
+ *
+ * A memzone is reserved by primary process and secondary processes attach to
+ * the memzone.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_init_shared_data(void)
+{
+ const struct rte_memzone *mz;
+ int ret = 0;
+
+ rte_spinlock_lock(&mlx5_shared_data_lock);
+ if (mlx5_shared_data == NULL) {
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+ /* Allocate shared memory. */
+ mz = rte_memzone_reserve(MZ_MLX5_PMD_SHARED_DATA,
+ sizeof(*mlx5_shared_data),
+ SOCKET_ID_ANY, 0);
+ if (mz == NULL) {
+ DRV_LOG(ERR,
+ "Cannot allocate mlx5 shared data");
+ ret = -rte_errno;
+ goto error;
+ }
+ mlx5_shared_data = mz->addr;
+ memset(mlx5_shared_data, 0, sizeof(*mlx5_shared_data));
+ rte_spinlock_init(&mlx5_shared_data->lock);
+ } else {
+ /* Lookup allocated shared memory. */
+ mz = rte_memzone_lookup(MZ_MLX5_PMD_SHARED_DATA);
+ if (mz == NULL) {
+ DRV_LOG(ERR,
+ "Cannot attach mlx5 shared data");
+ ret = -rte_errno;
+ goto error;
+ }
+ mlx5_shared_data = mz->addr;
+ memset(&mlx5_local_data, 0, sizeof(mlx5_local_data));
+ }
+ }
+error:
+ rte_spinlock_unlock(&mlx5_shared_data_lock);
+ return ret;
+}
+
+/**
+ * Retrieve integer value from environment variable.
+ *
+ * @param[in] name
+ * Environment variable name.
+ *
+ * @return
+ * Integer value, 0 if the variable is not set.
+ */
+int
+mlx5_getenv_int(const char *name)
+{
+ const char *val = getenv(name);
+
+ if (val == NULL)
+ return 0;
+ return atoi(val);
+}
+
+/**
+ * Verbs callback to allocate a memory. This function should allocate the space
+ * according to the size provided residing inside a huge page.
+ * Please note that all allocation must respect the alignment from libmlx5
+ * (i.e. currently sysconf(_SC_PAGESIZE)).
+ *
+ * @param[in] size
+ * The size in bytes of the memory to allocate.
+ * @param[in] data
+ * A pointer to the callback data.
+ *
+ * @return
+ * Allocated buffer, NULL otherwise and rte_errno is set.
+ */
+static void *
+mlx5_alloc_verbs_buf(size_t size, void *data)
+{
+ struct mlx5_priv *priv = data;
+ void *ret;
+ size_t alignment = sysconf(_SC_PAGESIZE);
+ unsigned int socket = SOCKET_ID_ANY;
+
+ if (priv->verbs_alloc_ctx.type == MLX5_VERBS_ALLOC_TYPE_TX_QUEUE) {
+ const struct mlx5_txq_ctrl *ctrl = priv->verbs_alloc_ctx.obj;
+
+ socket = ctrl->socket;
+ } else if (priv->verbs_alloc_ctx.type ==
+ MLX5_VERBS_ALLOC_TYPE_RX_QUEUE) {
+ const struct mlx5_rxq_ctrl *ctrl = priv->verbs_alloc_ctx.obj;
+
+ socket = ctrl->socket;
+ }
+ MLX5_ASSERT(data != NULL);
+ ret = rte_malloc_socket(__func__, size, alignment, socket);
+ if (!ret && size)
+ rte_errno = ENOMEM;
+ return ret;
+}
+
+/**
+ * Verbs callback to free a memory.
+ *
+ * @param[in] ptr
+ * A pointer to the memory to free.
+ * @param[in] data
+ * A pointer to the callback data.
+ */
+static void
+mlx5_free_verbs_buf(void *ptr, void *data __rte_unused)
+{
+ MLX5_ASSERT(data != NULL);
+ rte_free(ptr);
+}
+
+/**
+ * DPDK callback to add udp tunnel port
+ *
+ * @param[in] dev
+ * A pointer to eth_dev
+ * @param[in] udp_tunnel
+ * A pointer to udp tunnel
+ *
+ * @return
+ * 0 on valid udp ports and tunnels, -ENOTSUP otherwise.
+ */
+int
+mlx5_udp_tunnel_port_add(struct rte_eth_dev *dev __rte_unused,
+ struct rte_eth_udp_tunnel *udp_tunnel)
+{
+ MLX5_ASSERT(udp_tunnel != NULL);
+ if (udp_tunnel->prot_type == RTE_TUNNEL_TYPE_VXLAN &&
+ udp_tunnel->udp_port == 4789)
+ return 0;
+ if (udp_tunnel->prot_type == RTE_TUNNEL_TYPE_VXLAN_GPE &&
+ udp_tunnel->udp_port == 4790)
+ return 0;
+ return -ENOTSUP;
+}
+
+/**
+ * Initialize process private data structure.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx5_proc_priv_init(struct rte_eth_dev *dev)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_proc_priv *ppriv;
+ size_t ppriv_size;
+
+ /*
+ * UAR register table follows the process private structure. BlueFlame
+ * registers for Tx queues are stored in the table.
+ */
+ ppriv_size =
+ sizeof(struct mlx5_proc_priv) + priv->txqs_n * sizeof(void *);
+ ppriv = rte_malloc_socket("mlx5_proc_priv", ppriv_size,
+ RTE_CACHE_LINE_SIZE, dev->device->numa_node);
+ if (!ppriv) {
+ rte_errno = ENOMEM;
+ return -rte_errno;
+ }
+ ppriv->uar_table_sz = ppriv_size;
+ dev->process_private = ppriv;
+ return 0;
+}
+
+/**
+ * Un-initialize process private data structure.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ */
+static void
+mlx5_proc_priv_uninit(struct rte_eth_dev *dev)
+{
+ if (!dev->process_private)
+ return;
+ rte_free(dev->process_private);
+ dev->process_private = NULL;
+}
+
+/**
+ * DPDK callback to close the device.
+ *
+ * Destroy all queues and objects, free memory.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ */
+static void
+mlx5_dev_close(struct rte_eth_dev *dev)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ unsigned int i;
+ int ret;
+
+ DRV_LOG(DEBUG, "port %u closing device \"%s\"",
+ dev->data->port_id,
+ ((priv->sh->ctx != NULL) ? priv->sh->ctx->device->name : ""));
+ /* In case mlx5_dev_stop() has not been called. */
+ mlx5_dev_interrupt_handler_uninstall(dev);
+ mlx5_dev_interrupt_handler_devx_uninstall(dev);
+ mlx5_traffic_disable(dev);
+ mlx5_flow_flush(dev, NULL);
+ mlx5_flow_meter_flush(dev, NULL);
+ /* Prevent crashes when queues are still in use. */
+ dev->rx_pkt_burst = removed_rx_burst;
+ dev->tx_pkt_burst = removed_tx_burst;
+ rte_wmb();
+ /* Disable datapath on secondary process. */
+ mlx5_mp_req_stop_rxtx(dev);
+ if (priv->rxqs != NULL) {
+ /* XXX race condition if mlx5_rx_burst() is still running. */
+ usleep(1000);
+ for (i = 0; (i != priv->rxqs_n); ++i)
+ mlx5_rxq_release(dev, i);
+ priv->rxqs_n = 0;
+ priv->rxqs = NULL;
+ }
+ if (priv->txqs != NULL) {
+ /* XXX race condition if mlx5_tx_burst() is still running. */
+ usleep(1000);
+ for (i = 0; (i != priv->txqs_n); ++i)
+ mlx5_txq_release(dev, i);
+ priv->txqs_n = 0;
+ priv->txqs = NULL;
+ }
+ mlx5_proc_priv_uninit(dev);
+ if (priv->mreg_cp_tbl)
+ mlx5_hlist_destroy(priv->mreg_cp_tbl, NULL, NULL);
+ mlx5_mprq_free_mp(dev);
+ mlx5_free_shared_dr(priv);
+ if (priv->rss_conf.rss_key != NULL)
+ rte_free(priv->rss_conf.rss_key);
+ if (priv->reta_idx != NULL)
+ rte_free(priv->reta_idx);
+ if (priv->config.vf)
+ mlx5_nl_mac_addr_flush(priv->nl_socket_route, mlx5_ifindex(dev),
+ dev->data->mac_addrs,
+ MLX5_MAX_MAC_ADDRESSES, priv->mac_own);
+ if (priv->nl_socket_route >= 0)
+ close(priv->nl_socket_route);
+ if (priv->nl_socket_rdma >= 0)
+ close(priv->nl_socket_rdma);
+ if (priv->vmwa_context)
+ mlx5_vlan_vmwa_exit(priv->vmwa_context);
+ if (priv->sh) {
+ /*
+ * Free the shared context in last turn, because the cleanup
+ * routines above may use some shared fields, like
+ * mlx5_nl_mac_addr_flush() uses ibdev_path for retrieveing
+ * ifindex if Netlink fails.
+ */
+ mlx5_free_shared_ibctx(priv->sh);
+ priv->sh = NULL;
+ }
+ ret = mlx5_hrxq_verify(dev);
+ if (ret)
+ DRV_LOG(WARNING, "port %u some hash Rx queue still remain",
+ dev->data->port_id);
+ ret = mlx5_ind_table_obj_verify(dev);
+ if (ret)
+ DRV_LOG(WARNING, "port %u some indirection table still remain",
+ dev->data->port_id);
+ ret = mlx5_rxq_obj_verify(dev);
+ if (ret)
+ DRV_LOG(WARNING, "port %u some Rx queue objects still remain",
+ dev->data->port_id);
+ ret = mlx5_rxq_verify(dev);
+ if (ret)
+ DRV_LOG(WARNING, "port %u some Rx queues still remain",
+ dev->data->port_id);
+ ret = mlx5_txq_obj_verify(dev);
+ if (ret)
+ DRV_LOG(WARNING, "port %u some Verbs Tx queue still remain",
+ dev->data->port_id);
+ ret = mlx5_txq_verify(dev);
+ if (ret)
+ DRV_LOG(WARNING, "port %u some Tx queues still remain",
+ dev->data->port_id);
+ ret = mlx5_flow_verify(dev);
+ if (ret)
+ DRV_LOG(WARNING, "port %u some flows still remain",
+ dev->data->port_id);
+ if (priv->domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) {
+ unsigned int c = 0;
+ uint16_t port_id;
+
+ MLX5_ETH_FOREACH_DEV(port_id, priv->pci_dev) {
+ struct mlx5_priv *opriv =
+ rte_eth_devices[port_id].data->dev_private;
+
+ if (!opriv ||
+ opriv->domain_id != priv->domain_id ||
+ &rte_eth_devices[port_id] == dev)
+ continue;
+ ++c;
+ break;
+ }
+ if (!c)
+ claim_zero(rte_eth_switch_domain_free(priv->domain_id));
+ }
+ memset(priv, 0, sizeof(*priv));
+ priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID;
+ /*
+ * Reset mac_addrs to NULL such that it is not freed as part of
+ * rte_eth_dev_release_port(). mac_addrs is part of dev_private so
+ * it is freed when dev_private is freed.
+ */
+ dev->data->mac_addrs = NULL;
+}
+
+const struct eth_dev_ops mlx5_dev_ops = {
+ .dev_configure = mlx5_dev_configure,
+ .dev_start = mlx5_dev_start,
+ .dev_stop = mlx5_dev_stop,
+ .dev_set_link_down = mlx5_set_link_down,
+ .dev_set_link_up = mlx5_set_link_up,
+ .dev_close = mlx5_dev_close,
+ .promiscuous_enable = mlx5_promiscuous_enable,
+ .promiscuous_disable = mlx5_promiscuous_disable,
+ .allmulticast_enable = mlx5_allmulticast_enable,
+ .allmulticast_disable = mlx5_allmulticast_disable,
+ .link_update = mlx5_link_update,
+ .stats_get = mlx5_stats_get,
+ .stats_reset = mlx5_stats_reset,
+ .xstats_get = mlx5_xstats_get,
+ .xstats_reset = mlx5_xstats_reset,
+ .xstats_get_names = mlx5_xstats_get_names,
+ .fw_version_get = mlx5_fw_version_get,
+ .dev_infos_get = mlx5_dev_infos_get,
+ .read_clock = mlx5_read_clock,
+ .dev_supported_ptypes_get = mlx5_dev_supported_ptypes_get,
+ .vlan_filter_set = mlx5_vlan_filter_set,
+ .rx_queue_setup = mlx5_rx_queue_setup,
+ .rx_hairpin_queue_setup = mlx5_rx_hairpin_queue_setup,
+ .tx_queue_setup = mlx5_tx_queue_setup,
+ .tx_hairpin_queue_setup = mlx5_tx_hairpin_queue_setup,
+ .rx_queue_release = mlx5_rx_queue_release,
+ .tx_queue_release = mlx5_tx_queue_release,
+ .flow_ctrl_get = mlx5_dev_get_flow_ctrl,
+ .flow_ctrl_set = mlx5_dev_set_flow_ctrl,
+ .mac_addr_remove = mlx5_mac_addr_remove,
+ .mac_addr_add = mlx5_mac_addr_add,
+ .mac_addr_set = mlx5_mac_addr_set,
+ .set_mc_addr_list = mlx5_set_mc_addr_list,
+ .mtu_set = mlx5_dev_set_mtu,
+ .vlan_strip_queue_set = mlx5_vlan_strip_queue_set,
+ .vlan_offload_set = mlx5_vlan_offload_set,
+ .reta_update = mlx5_dev_rss_reta_update,
+ .reta_query = mlx5_dev_rss_reta_query,
+ .rss_hash_update = mlx5_rss_hash_update,
+ .rss_hash_conf_get = mlx5_rss_hash_conf_get,
+ .filter_ctrl = mlx5_dev_filter_ctrl,
+ .rx_descriptor_status = mlx5_rx_descriptor_status,
+ .tx_descriptor_status = mlx5_tx_descriptor_status,
+ .rxq_info_get = mlx5_rxq_info_get,
+ .txq_info_get = mlx5_txq_info_get,
+ .rx_burst_mode_get = mlx5_rx_burst_mode_get,
+ .tx_burst_mode_get = mlx5_tx_burst_mode_get,
+ .rx_queue_count = mlx5_rx_queue_count,
+ .rx_queue_intr_enable = mlx5_rx_intr_enable,
+ .rx_queue_intr_disable = mlx5_rx_intr_disable,
+ .is_removed = mlx5_is_removed,
+ .udp_tunnel_port_add = mlx5_udp_tunnel_port_add,
+ .get_module_info = mlx5_get_module_info,
+ .get_module_eeprom = mlx5_get_module_eeprom,
+ .hairpin_cap_get = mlx5_hairpin_cap_get,
+ .mtr_ops_get = mlx5_flow_meter_ops_get,
+};
+
+/* Available operations from secondary process. */
+static const struct eth_dev_ops mlx5_dev_sec_ops = {
+ .stats_get = mlx5_stats_get,
+ .stats_reset = mlx5_stats_reset,
+ .xstats_get = mlx5_xstats_get,
+ .xstats_reset = mlx5_xstats_reset,
+ .xstats_get_names = mlx5_xstats_get_names,
+ .fw_version_get = mlx5_fw_version_get,
+ .dev_infos_get = mlx5_dev_infos_get,
+ .rx_descriptor_status = mlx5_rx_descriptor_status,
+ .tx_descriptor_status = mlx5_tx_descriptor_status,
+ .rxq_info_get = mlx5_rxq_info_get,
+ .txq_info_get = mlx5_txq_info_get,
+ .rx_burst_mode_get = mlx5_rx_burst_mode_get,
+ .tx_burst_mode_get = mlx5_tx_burst_mode_get,
+ .get_module_info = mlx5_get_module_info,
+ .get_module_eeprom = mlx5_get_module_eeprom,
+};
+
+/* Available operations in flow isolated mode. */
+const struct eth_dev_ops mlx5_dev_ops_isolate = {
+ .dev_configure = mlx5_dev_configure,
+ .dev_start = mlx5_dev_start,
+ .dev_stop = mlx5_dev_stop,
+ .dev_set_link_down = mlx5_set_link_down,
+ .dev_set_link_up = mlx5_set_link_up,
+ .dev_close = mlx5_dev_close,
+ .promiscuous_enable = mlx5_promiscuous_enable,
+ .promiscuous_disable = mlx5_promiscuous_disable,
+ .allmulticast_enable = mlx5_allmulticast_enable,
+ .allmulticast_disable = mlx5_allmulticast_disable,
+ .link_update = mlx5_link_update,
+ .stats_get = mlx5_stats_get,
+ .stats_reset = mlx5_stats_reset,
+ .xstats_get = mlx5_xstats_get,
+ .xstats_reset = mlx5_xstats_reset,
+ .xstats_get_names = mlx5_xstats_get_names,
+ .fw_version_get = mlx5_fw_version_get,
+ .dev_infos_get = mlx5_dev_infos_get,
+ .dev_supported_ptypes_get = mlx5_dev_supported_ptypes_get,
+ .vlan_filter_set = mlx5_vlan_filter_set,
+ .rx_queue_setup = mlx5_rx_queue_setup,
+ .rx_hairpin_queue_setup = mlx5_rx_hairpin_queue_setup,
+ .tx_queue_setup = mlx5_tx_queue_setup,
+ .tx_hairpin_queue_setup = mlx5_tx_hairpin_queue_setup,
+ .rx_queue_release = mlx5_rx_queue_release,
+ .tx_queue_release = mlx5_tx_queue_release,
+ .flow_ctrl_get = mlx5_dev_get_flow_ctrl,
+ .flow_ctrl_set = mlx5_dev_set_flow_ctrl,
+ .mac_addr_remove = mlx5_mac_addr_remove,
+ .mac_addr_add = mlx5_mac_addr_add,
+ .mac_addr_set = mlx5_mac_addr_set,
+ .set_mc_addr_list = mlx5_set_mc_addr_list,
+ .mtu_set = mlx5_dev_set_mtu,
+ .vlan_strip_queue_set = mlx5_vlan_strip_queue_set,
+ .vlan_offload_set = mlx5_vlan_offload_set,
+ .filter_ctrl = mlx5_dev_filter_ctrl,
+ .rx_descriptor_status = mlx5_rx_descriptor_status,
+ .tx_descriptor_status = mlx5_tx_descriptor_status,
+ .rxq_info_get = mlx5_rxq_info_get,
+ .txq_info_get = mlx5_txq_info_get,
+ .rx_burst_mode_get = mlx5_rx_burst_mode_get,
+ .tx_burst_mode_get = mlx5_tx_burst_mode_get,
+ .rx_queue_intr_enable = mlx5_rx_intr_enable,
+ .rx_queue_intr_disable = mlx5_rx_intr_disable,
+ .is_removed = mlx5_is_removed,
+ .get_module_info = mlx5_get_module_info,
+ .get_module_eeprom = mlx5_get_module_eeprom,
+ .hairpin_cap_get = mlx5_hairpin_cap_get,
+ .mtr_ops_get = mlx5_flow_meter_ops_get,
+};
+
+/**
+ * Verify and store value for device argument.
+ *
+ * @param[in] key
+ * Key argument to verify.
+ * @param[in] val
+ * Value associated with key.
+ * @param opaque
+ * User data.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_args_check(const char *key, const char *val, void *opaque)
+{
+ struct mlx5_dev_config *config = opaque;
+ unsigned long tmp;
+
+ /* No-op, port representors are processed in mlx5_dev_spawn(). */
+ if (!strcmp(MLX5_REPRESENTOR, key))
+ return 0;
+ errno = 0;
+ tmp = strtoul(val, NULL, 0);
+ if (errno) {
+ rte_errno = errno;
+ DRV_LOG(WARNING, "%s: \"%s\" is not a valid integer", key, val);
+ return -rte_errno;
+ }
+ if (strcmp(MLX5_RXQ_CQE_COMP_EN, key) == 0) {
+ config->cqe_comp = !!tmp;
+ } else if (strcmp(MLX5_RXQ_CQE_PAD_EN, key) == 0) {
+ config->cqe_pad = !!tmp;
+ } else if (strcmp(MLX5_RXQ_PKT_PAD_EN, key) == 0) {
+ config->hw_padding = !!tmp;
+ } else if (strcmp(MLX5_RX_MPRQ_EN, key) == 0) {
+ config->mprq.enabled = !!tmp;
+ } else if (strcmp(MLX5_RX_MPRQ_LOG_STRIDE_NUM, key) == 0) {
+ config->mprq.stride_num_n = tmp;
+ } else if (strcmp(MLX5_RX_MPRQ_MAX_MEMCPY_LEN, key) == 0) {
+ config->mprq.max_memcpy_len = tmp;
+ } else if (strcmp(MLX5_RXQS_MIN_MPRQ, key) == 0) {
+ config->mprq.min_rxqs_num = tmp;
+ } else if (strcmp(MLX5_TXQ_INLINE, key) == 0) {
+ DRV_LOG(WARNING, "%s: deprecated parameter,"
+ " converted to txq_inline_max", key);
+ config->txq_inline_max = tmp;
+ } else if (strcmp(MLX5_TXQ_INLINE_MAX, key) == 0) {
+ config->txq_inline_max = tmp;
+ } else if (strcmp(MLX5_TXQ_INLINE_MIN, key) == 0) {
+ config->txq_inline_min = tmp;
+ } else if (strcmp(MLX5_TXQ_INLINE_MPW, key) == 0) {
+ config->txq_inline_mpw = tmp;
+ } else if (strcmp(MLX5_TXQS_MIN_INLINE, key) == 0) {
+ config->txqs_inline = tmp;
+ } else if (strcmp(MLX5_TXQS_MAX_VEC, key) == 0) {
+ DRV_LOG(WARNING, "%s: deprecated parameter, ignored", key);
+ } else if (strcmp(MLX5_TXQ_MPW_EN, key) == 0) {
+ config->mps = !!tmp;
+ } else if (strcmp(MLX5_TX_DB_NC, key) == 0) {
+ if (tmp != MLX5_TXDB_CACHED &&
+ tmp != MLX5_TXDB_NCACHED &&
+ tmp != MLX5_TXDB_HEURISTIC) {
+ DRV_LOG(ERR, "invalid Tx doorbell "
+ "mapping parameter");
+ rte_errno = EINVAL;
+ return -rte_errno;
+ }
+ config->dbnc = tmp;
+ } else if (strcmp(MLX5_TXQ_MPW_HDR_DSEG_EN, key) == 0) {
+ DRV_LOG(WARNING, "%s: deprecated parameter, ignored", key);
+ } else if (strcmp(MLX5_TXQ_MAX_INLINE_LEN, key) == 0) {
+ DRV_LOG(WARNING, "%s: deprecated parameter,"
+ " converted to txq_inline_mpw", key);
+ config->txq_inline_mpw = tmp;
+ } else if (strcmp(MLX5_TX_VEC_EN, key) == 0) {
+ DRV_LOG(WARNING, "%s: deprecated parameter, ignored", key);
+ } else if (strcmp(MLX5_RX_VEC_EN, key) == 0) {
+ config->rx_vec_en = !!tmp;
+ } else if (strcmp(MLX5_L3_VXLAN_EN, key) == 0) {
+ config->l3_vxlan_en = !!tmp;
+ } else if (strcmp(MLX5_VF_NL_EN, key) == 0) {
+ config->vf_nl_en = !!tmp;
+ } else if (strcmp(MLX5_DV_ESW_EN, key) == 0) {
+ config->dv_esw_en = !!tmp;
+ } else if (strcmp(MLX5_DV_FLOW_EN, key) == 0) {
+ config->dv_flow_en = !!tmp;
+ } else if (strcmp(MLX5_DV_XMETA_EN, key) == 0) {
+ if (tmp != MLX5_XMETA_MODE_LEGACY &&
+ tmp != MLX5_XMETA_MODE_META16 &&
+ tmp != MLX5_XMETA_MODE_META32) {
+ DRV_LOG(ERR, "invalid extensive "
+ "metadata parameter");
+ rte_errno = EINVAL;
+ return -rte_errno;
+ }
+ config->dv_xmeta_en = tmp;
+ } else if (strcmp(MLX5_MR_EXT_MEMSEG_EN, key) == 0) {
+ config->mr_ext_memseg_en = !!tmp;
+ } else if (strcmp(MLX5_MAX_DUMP_FILES_NUM, key) == 0) {
+ config->max_dump_files_num = tmp;
+ } else if (strcmp(MLX5_LRO_TIMEOUT_USEC, key) == 0) {
+ config->lro.timeout = tmp;
+ } else if (strcmp(MLX5_CLASS_ARG_NAME, key) == 0) {
+ DRV_LOG(DEBUG, "class argument is %s.", val);
+ } else {
+ DRV_LOG(WARNING, "%s: unknown parameter", key);
+ rte_errno = EINVAL;
+ return -rte_errno;
+ }
+ return 0;
+}
+
+/**
+ * Parse device parameters.
+ *
+ * @param config
+ * Pointer to device configuration structure.
+ * @param devargs
+ * Device arguments structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_args(struct mlx5_dev_config *config, struct rte_devargs *devargs)
+{
+ const char **params = (const char *[]){
+ MLX5_RXQ_CQE_COMP_EN,
+ MLX5_RXQ_CQE_PAD_EN,
+ MLX5_RXQ_PKT_PAD_EN,
+ MLX5_RX_MPRQ_EN,
+ MLX5_RX_MPRQ_LOG_STRIDE_NUM,
+ MLX5_RX_MPRQ_MAX_MEMCPY_LEN,
+ MLX5_RXQS_MIN_MPRQ,
+ MLX5_TXQ_INLINE,
+ MLX5_TXQ_INLINE_MIN,
+ MLX5_TXQ_INLINE_MAX,
+ MLX5_TXQ_INLINE_MPW,
+ MLX5_TXQS_MIN_INLINE,
+ MLX5_TXQS_MAX_VEC,
+ MLX5_TXQ_MPW_EN,
+ MLX5_TXQ_MPW_HDR_DSEG_EN,
+ MLX5_TXQ_MAX_INLINE_LEN,
+ MLX5_TX_DB_NC,
+ MLX5_TX_VEC_EN,
+ MLX5_RX_VEC_EN,
+ MLX5_L3_VXLAN_EN,
+ MLX5_VF_NL_EN,
+ MLX5_DV_ESW_EN,
+ MLX5_DV_FLOW_EN,
+ MLX5_DV_XMETA_EN,
+ MLX5_MR_EXT_MEMSEG_EN,
+ MLX5_REPRESENTOR,
+ MLX5_MAX_DUMP_FILES_NUM,
+ MLX5_LRO_TIMEOUT_USEC,
+ MLX5_CLASS_ARG_NAME,
+ NULL,
+ };
+ struct rte_kvargs *kvlist;
+ int ret = 0;
+ int i;
+
+ if (devargs == NULL)
+ return 0;
+ /* Following UGLY cast is done to pass checkpatch. */
+ kvlist = rte_kvargs_parse(devargs->args, params);
+ if (kvlist == NULL) {
+ rte_errno = EINVAL;
+ return -rte_errno;
+ }
+ /* Process parameters. */
+ for (i = 0; (params[i] != NULL); ++i) {
+ if (rte_kvargs_count(kvlist, params[i])) {
+ ret = rte_kvargs_process(kvlist, params[i],
+ mlx5_args_check, config);
+ if (ret) {
+ rte_errno = EINVAL;
+ rte_kvargs_free(kvlist);
+ return -rte_errno;
+ }
+ }
+ }
+ rte_kvargs_free(kvlist);
+ return 0;
+}
+
+static struct rte_pci_driver mlx5_driver;
+
+/**
+ * PMD global initialization.
+ *
+ * Independent from individual device, this function initializes global
+ * per-PMD data structures distinguishing primary and secondary processes.
+ * Hence, each initialization is called once per a process.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_init_once(void)
+{
+ struct mlx5_shared_data *sd;
+ struct mlx5_local_data *ld = &mlx5_local_data;
+ int ret = 0;
+
+ if (mlx5_init_shared_data())
+ return -rte_errno;
+ sd = mlx5_shared_data;
+ MLX5_ASSERT(sd);
+ rte_spinlock_lock(&sd->lock);
+ switch (rte_eal_process_type()) {
+ case RTE_PROC_PRIMARY:
+ if (sd->init_done)
+ break;
+ LIST_INIT(&sd->mem_event_cb_list);
+ rte_rwlock_init(&sd->mem_event_rwlock);
+ rte_mem_event_callback_register("MLX5_MEM_EVENT_CB",
+ mlx5_mr_mem_event_cb, NULL);
+ ret = mlx5_mp_init_primary();
+ if (ret)
+ goto out;
+ sd->init_done = true;
+ break;
+ case RTE_PROC_SECONDARY:
+ if (ld->init_done)
+ break;
+ ret = mlx5_mp_init_secondary();
+ if (ret)
+ goto out;
+ ++sd->secondary_cnt;
+ ld->init_done = true;
+ break;
+ default:
+ break;
+ }
+out:
+ rte_spinlock_unlock(&sd->lock);
+ return ret;
+}
+
+/**
+ * Configures the minimal amount of data to inline into WQE
+ * while sending packets.
+ *
+ * - the txq_inline_min has the maximal priority, if this
+ * key is specified in devargs
+ * - if DevX is enabled the inline mode is queried from the
+ * device (HCA attributes and NIC vport context if needed).
+ * - otherwise L2 mode (18 bytes) is assumed for ConnectX-4/4LX
+ * and none (0 bytes) for other NICs
+ *
+ * @param spawn
+ * Verbs device parameters (name, port, switch_info) to spawn.
+ * @param config
+ * Device configuration parameters.
+ */
+static void
+mlx5_set_min_inline(struct mlx5_dev_spawn_data *spawn,
+ struct mlx5_dev_config *config)
+{
+ if (config->txq_inline_min != MLX5_ARG_UNSET) {
+ /* Application defines size of inlined data explicitly. */
+ switch (spawn->pci_dev->id.device_id) {
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX4:
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF:
+ if (config->txq_inline_min <
+ (int)MLX5_INLINE_HSIZE_L2) {
+ DRV_LOG(DEBUG,
+ "txq_inline_mix aligned to minimal"
+ " ConnectX-4 required value %d",
+ (int)MLX5_INLINE_HSIZE_L2);
+ config->txq_inline_min = MLX5_INLINE_HSIZE_L2;
+ }
+ break;
+ }
+ goto exit;
+ }
+ if (config->hca_attr.eth_net_offloads) {
+ /* We have DevX enabled, inline mode queried successfully. */
+ switch (config->hca_attr.wqe_inline_mode) {
+ case MLX5_CAP_INLINE_MODE_L2:
+ /* outer L2 header must be inlined. */
+ config->txq_inline_min = MLX5_INLINE_HSIZE_L2;
+ goto exit;
+ case MLX5_CAP_INLINE_MODE_NOT_REQUIRED:
+ /* No inline data are required by NIC. */
+ config->txq_inline_min = MLX5_INLINE_HSIZE_NONE;
+ config->hw_vlan_insert =
+ config->hca_attr.wqe_vlan_insert;
+ DRV_LOG(DEBUG, "Tx VLAN insertion is supported");
+ goto exit;
+ case MLX5_CAP_INLINE_MODE_VPORT_CONTEXT:
+ /* inline mode is defined by NIC vport context. */
+ if (!config->hca_attr.eth_virt)
+ break;
+ switch (config->hca_attr.vport_inline_mode) {
+ case MLX5_INLINE_MODE_NONE:
+ config->txq_inline_min =
+ MLX5_INLINE_HSIZE_NONE;
+ goto exit;
+ case MLX5_INLINE_MODE_L2:
+ config->txq_inline_min =
+ MLX5_INLINE_HSIZE_L2;
+ goto exit;
+ case MLX5_INLINE_MODE_IP:
+ config->txq_inline_min =
+ MLX5_INLINE_HSIZE_L3;
+ goto exit;
+ case MLX5_INLINE_MODE_TCP_UDP:
+ config->txq_inline_min =
+ MLX5_INLINE_HSIZE_L4;
+ goto exit;
+ case MLX5_INLINE_MODE_INNER_L2:
+ config->txq_inline_min =
+ MLX5_INLINE_HSIZE_INNER_L2;
+ goto exit;
+ case MLX5_INLINE_MODE_INNER_IP:
+ config->txq_inline_min =
+ MLX5_INLINE_HSIZE_INNER_L3;
+ goto exit;
+ case MLX5_INLINE_MODE_INNER_TCP_UDP:
+ config->txq_inline_min =
+ MLX5_INLINE_HSIZE_INNER_L4;
+ goto exit;
+ }
+ }
+ }
+ /*
+ * We get here if we are unable to deduce
+ * inline data size with DevX. Try PCI ID
+ * to determine old NICs.
+ */
+ switch (spawn->pci_dev->id.device_id) {
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX4:
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF:
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX4LX:
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF:
+ config->txq_inline_min = MLX5_INLINE_HSIZE_L2;
+ config->hw_vlan_insert = 0;
+ break;
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX5:
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX5VF:
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX5EX:
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF:
+ /*
+ * These NICs support VLAN insertion from WQE and
+ * report the wqe_vlan_insert flag. But there is the bug
+ * and PFC control may be broken, so disable feature.
+ */
+ config->hw_vlan_insert = 0;
+ config->txq_inline_min = MLX5_INLINE_HSIZE_NONE;
+ break;
+ default:
+ config->txq_inline_min = MLX5_INLINE_HSIZE_NONE;
+ break;
+ }
+exit:
+ DRV_LOG(DEBUG, "min tx inline configured: %d", config->txq_inline_min);
+}
+
+/**
+ * Configures the metadata mask fields in the shared context.
+ *
+ * @param [in] dev
+ * Pointer to Ethernet device.
+ */
+static void
+mlx5_set_metadata_mask(struct rte_eth_dev *dev)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_ibv_shared *sh = priv->sh;
+ uint32_t meta, mark, reg_c0;
+
+ reg_c0 = ~priv->vport_meta_mask;
+ switch (priv->config.dv_xmeta_en) {
+ case MLX5_XMETA_MODE_LEGACY:
+ meta = UINT32_MAX;
+ mark = MLX5_FLOW_MARK_MASK;
+ break;
+ case MLX5_XMETA_MODE_META16:
+ meta = reg_c0 >> rte_bsf32(reg_c0);
+ mark = MLX5_FLOW_MARK_MASK;
+ break;
+ case MLX5_XMETA_MODE_META32:
+ meta = UINT32_MAX;
+ mark = (reg_c0 >> rte_bsf32(reg_c0)) & MLX5_FLOW_MARK_MASK;
+ break;
+ default:
+ meta = 0;
+ mark = 0;
+ MLX5_ASSERT(false);
+ break;
+ }
+ if (sh->dv_mark_mask && sh->dv_mark_mask != mark)
+ DRV_LOG(WARNING, "metadata MARK mask mismatche %08X:%08X",
+ sh->dv_mark_mask, mark);
+ else
+ sh->dv_mark_mask = mark;
+ if (sh->dv_meta_mask && sh->dv_meta_mask != meta)
+ DRV_LOG(WARNING, "metadata META mask mismatche %08X:%08X",
+ sh->dv_meta_mask, meta);
+ else
+ sh->dv_meta_mask = meta;
+ if (sh->dv_regc0_mask && sh->dv_regc0_mask != reg_c0)
+ DRV_LOG(WARNING, "metadata reg_c0 mask mismatche %08X:%08X",
+ sh->dv_meta_mask, reg_c0);
+ else
+ sh->dv_regc0_mask = reg_c0;
+ DRV_LOG(DEBUG, "metadata mode %u", priv->config.dv_xmeta_en);
+ DRV_LOG(DEBUG, "metadata MARK mask %08X", sh->dv_mark_mask);
+ DRV_LOG(DEBUG, "metadata META mask %08X", sh->dv_meta_mask);
+ DRV_LOG(DEBUG, "metadata reg_c0 mask %08X", sh->dv_regc0_mask);
+}
+
+/**
+ * Allocate page of door-bells and register it using DevX API.
+ *
+ * @param [in] dev
+ * Pointer to Ethernet device.
+ *
+ * @return
+ * Pointer to new page on success, NULL otherwise.
+ */
+static struct mlx5_devx_dbr_page *
+mlx5_alloc_dbr_page(struct rte_eth_dev *dev)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_devx_dbr_page *page;
+
+ /* Allocate space for door-bell page and management data. */
+ page = rte_calloc_socket(__func__, 1, sizeof(struct mlx5_devx_dbr_page),
+ RTE_CACHE_LINE_SIZE, dev->device->numa_node);
+ if (!page) {
+ DRV_LOG(ERR, "port %u cannot allocate dbr page",
+ dev->data->port_id);
+ return NULL;
+ }
+ /* Register allocated memory. */
+ page->umem = mlx5_glue->devx_umem_reg(priv->sh->ctx, page->dbrs,
+ MLX5_DBR_PAGE_SIZE, 0);
+ if (!page->umem) {
+ DRV_LOG(ERR, "port %u cannot umem reg dbr page",
+ dev->data->port_id);
+ rte_free(page);
+ return NULL;
+ }
+ return page;
+}
+
+/**
+ * Find the next available door-bell, allocate new page if needed.
+ *
+ * @param [in] dev
+ * Pointer to Ethernet device.
+ * @param [out] dbr_page
+ * Door-bell page containing the page data.
+ *
+ * @return
+ * Door-bell address offset on success, a negative error value otherwise.
+ */
+int64_t
+mlx5_get_dbr(struct rte_eth_dev *dev, struct mlx5_devx_dbr_page **dbr_page)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_devx_dbr_page *page = NULL;
+ uint32_t i, j;
+
+ LIST_FOREACH(page, &priv->dbrpgs, next)
+ if (page->dbr_count < MLX5_DBR_PER_PAGE)
+ break;
+ if (!page) { /* No page with free door-bell exists. */
+ page = mlx5_alloc_dbr_page(dev);
+ if (!page) /* Failed to allocate new page. */
+ return (-1);
+ LIST_INSERT_HEAD(&priv->dbrpgs, page, next);
+ }
+ /* Loop to find bitmap part with clear bit. */
+ for (i = 0;
+ i < MLX5_DBR_BITMAP_SIZE && page->dbr_bitmap[i] == UINT64_MAX;
+ i++)
+ ; /* Empty. */
+ /* Find the first clear bit. */
+ j = rte_bsf64(~page->dbr_bitmap[i]);
+ MLX5_ASSERT(i < (MLX5_DBR_PER_PAGE / 64));
+ page->dbr_bitmap[i] |= (1 << j);
+ page->dbr_count++;
+ *dbr_page = page;
+ return (((i * 64) + j) * sizeof(uint64_t));
+}
+
+/**
+ * Release a door-bell record.
+ *
+ * @param [in] dev
+ * Pointer to Ethernet device.
+ * @param [in] umem_id
+ * UMEM ID of page containing the door-bell record to release.
+ * @param [in] offset
+ * Offset of door-bell record in page.
+ *
+ * @return
+ * 0 on success, a negative error value otherwise.
+ */
+int32_t
+mlx5_release_dbr(struct rte_eth_dev *dev, uint32_t umem_id, uint64_t offset)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_devx_dbr_page *page = NULL;
+ int ret = 0;
+
+ LIST_FOREACH(page, &priv->dbrpgs, next)
+ /* Find the page this address belongs to. */
+ if (page->umem->umem_id == umem_id)
+ break;
+ if (!page)
+ return -EINVAL;
+ page->dbr_count--;
+ if (!page->dbr_count) {
+ /* Page not used, free it and remove from list. */
+ LIST_REMOVE(page, next);
+ if (page->umem)
+ ret = -mlx5_glue->devx_umem_dereg(page->umem);
+ rte_free(page);
+ } else {
+ /* Mark in bitmap that this door-bell is not in use. */
+ offset /= MLX5_DBR_SIZE;
+ int i = offset / 64;
+ int j = offset % 64;
+
+ page->dbr_bitmap[i] &= ~(1 << j);
+ }
+ return ret;
+}
+
+int
+rte_pmd_mlx5_get_dyn_flag_names(char *names[], unsigned int n)
+{
+ static const char *const dynf_names[] = {
+ RTE_PMD_MLX5_FINE_GRANULARITY_INLINE,
+ RTE_MBUF_DYNFLAG_METADATA_NAME
+ };
+ unsigned int i;
+
+ if (n < RTE_DIM(dynf_names))
+ return -ENOMEM;
+ for (i = 0; i < RTE_DIM(dynf_names); i++) {
+ if (names[i] == NULL)
+ return -EINVAL;
+ strcpy(names[i], dynf_names[i]);
+ }
+ return RTE_DIM(dynf_names);
+}
+
+/**
+ * Check sibling device configurations.
+ *
+ * Sibling devices sharing the Infiniband device context
+ * should have compatible configurations. This regards
+ * representors and bonding slaves.
+ *
+ * @param priv
+ * Private device descriptor.
+ * @param config
+ * Configuration of the device is going to be created.
+ *
+ * @return
+ * 0 on success, EINVAL otherwise
+ */
+static int
+mlx5_dev_check_sibling_config(struct mlx5_priv *priv,
+ struct mlx5_dev_config *config)
+{
+ struct mlx5_ibv_shared *sh = priv->sh;
+ struct mlx5_dev_config *sh_conf = NULL;
+ uint16_t port_id;
+
+ MLX5_ASSERT(sh);
+ /* Nothing to compare for the single/first device. */
+ if (sh->refcnt == 1)
+ return 0;
+ /* Find the device with shared context. */
+ MLX5_ETH_FOREACH_DEV(port_id, priv->pci_dev) {
+ struct mlx5_priv *opriv =
+ rte_eth_devices[port_id].data->dev_private;
+
+ if (opriv && opriv != priv && opriv->sh == sh) {
+ sh_conf = &opriv->config;
+ break;
+ }
+ }
+ if (!sh_conf)
+ return 0;
+ if (sh_conf->dv_flow_en ^ config->dv_flow_en) {
+ DRV_LOG(ERR, "\"dv_flow_en\" configuration mismatch"
+ " for shared %s context", sh->ibdev_name);
+ rte_errno = EINVAL;
+ return rte_errno;
+ }
+ if (sh_conf->dv_xmeta_en ^ config->dv_xmeta_en) {
+ DRV_LOG(ERR, "\"dv_xmeta_en\" configuration mismatch"
+ " for shared %s context", sh->ibdev_name);
+ rte_errno = EINVAL;
+ return rte_errno;
+ }
+ return 0;
+}
+/**
+ * Spawn an Ethernet device from Verbs information.
+ *
+ * @param dpdk_dev
+ * Backing DPDK device.
+ * @param spawn
+ * Verbs device parameters (name, port, switch_info) to spawn.
+ * @param config
+ * Device configuration parameters.
+ *
+ * @return
+ * A valid Ethernet device object on success, NULL otherwise and rte_errno
+ * is set. The following errors are defined:
+ *
+ * EBUSY: device is not supposed to be spawned.
+ * EEXIST: device is already spawned
+ */
+static struct rte_eth_dev *
+mlx5_dev_spawn(struct rte_device *dpdk_dev,
+ struct mlx5_dev_spawn_data *spawn,
+ struct mlx5_dev_config config)
+{
+ const struct mlx5_switch_info *switch_info = &spawn->info;
+ struct mlx5_ibv_shared *sh = NULL;
+ struct ibv_port_attr port_attr;
+ struct mlx5dv_context dv_attr = { .comp_mask = 0 };
+ struct rte_eth_dev *eth_dev = NULL;
+ struct mlx5_priv *priv = NULL;
+ int err = 0;
+ unsigned int hw_padding = 0;
+ unsigned int mps;
+ unsigned int cqe_comp;
+ unsigned int cqe_pad = 0;
+ unsigned int tunnel_en = 0;
+ unsigned int mpls_en = 0;
+ unsigned int swp = 0;
+ unsigned int mprq = 0;
+ unsigned int mprq_min_stride_size_n = 0;
+ unsigned int mprq_max_stride_size_n = 0;
+ unsigned int mprq_min_stride_num_n = 0;
+ unsigned int mprq_max_stride_num_n = 0;
+ struct rte_ether_addr mac;
+ char name[RTE_ETH_NAME_MAX_LEN];
+ int own_domain_id = 0;
+ uint16_t port_id;
+ unsigned int i;
+#ifdef HAVE_MLX5DV_DR_DEVX_PORT
+ struct mlx5dv_devx_port devx_port = { .comp_mask = 0 };
+#endif
+
+ /* Determine if this port representor is supposed to be spawned. */
+ if (switch_info->representor && dpdk_dev->devargs) {
+ struct rte_eth_devargs eth_da;
+
+ err = rte_eth_devargs_parse(dpdk_dev->devargs->args, ð_da);
+ if (err) {
+ rte_errno = -err;
+ DRV_LOG(ERR, "failed to process device arguments: %s",
+ strerror(rte_errno));
+ return NULL;
+ }
+ for (i = 0; i < eth_da.nb_representor_ports; ++i)
+ if (eth_da.representor_ports[i] ==
+ (uint16_t)switch_info->port_name)
+ break;
+ if (i == eth_da.nb_representor_ports) {
+ rte_errno = EBUSY;
+ return NULL;
+ }
+ }
+ /* Build device name. */
+ if (spawn->pf_bond < 0) {
+ /* Single device. */
+ if (!switch_info->representor)
+ strlcpy(name, dpdk_dev->name, sizeof(name));
+ else
+ snprintf(name, sizeof(name), "%s_representor_%u",
+ dpdk_dev->name, switch_info->port_name);
+ } else {
+ /* Bonding device. */
+ if (!switch_info->representor)
+ snprintf(name, sizeof(name), "%s_%s",
+ dpdk_dev->name, spawn->ibv_dev->name);
+ else
+ snprintf(name, sizeof(name), "%s_%s_representor_%u",
+ dpdk_dev->name, spawn->ibv_dev->name,
+ switch_info->port_name);
+ }
+ /* check if the device is already spawned */
+ if (rte_eth_dev_get_port_by_name(name, &port_id) == 0) {
+ rte_errno = EEXIST;
+ return NULL;
+ }
+ DRV_LOG(DEBUG, "naming Ethernet device \"%s\"", name);
+ if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
+ eth_dev = rte_eth_dev_attach_secondary(name);
+ if (eth_dev == NULL) {
+ DRV_LOG(ERR, "can not attach rte ethdev");
+ rte_errno = ENOMEM;
+ return NULL;
+ }
+ eth_dev->device = dpdk_dev;
+ eth_dev->dev_ops = &mlx5_dev_sec_ops;
+ err = mlx5_proc_priv_init(eth_dev);
+ if (err)
+ return NULL;
+ /* Receive command fd from primary process */
+ err = mlx5_mp_req_verbs_cmd_fd(eth_dev);
+ if (err < 0)
+ return NULL;
+ /* Remap UAR for Tx queues. */
+ err = mlx5_tx_uar_init_secondary(eth_dev, err);
+ if (err)
+ return NULL;
+ /*
+ * Ethdev pointer is still required as input since
+ * the primary device is not accessible from the
+ * secondary process.
+ */
+ eth_dev->rx_pkt_burst = mlx5_select_rx_function(eth_dev);
+ eth_dev->tx_pkt_burst = mlx5_select_tx_function(eth_dev);
+ return eth_dev;
+ }
+ /*
+ * Some parameters ("tx_db_nc" in particularly) are needed in
+ * advance to create dv/verbs device context. We proceed the
+ * devargs here to get ones, and later proceed devargs again
+ * to override some hardware settings.
+ */
+ err = mlx5_args(&config, dpdk_dev->devargs);
+ if (err) {
+ err = rte_errno;
+ DRV_LOG(ERR, "failed to process device arguments: %s",
+ strerror(rte_errno));
+ goto error;
+ }
+ sh = mlx5_alloc_shared_ibctx(spawn, &config);
+ if (!sh)
+ return NULL;
+ config.devx = sh->devx;
+#ifdef HAVE_MLX5DV_DR_ACTION_DEST_DEVX_TIR
+ config.dest_tir = 1;
+#endif
+#ifdef HAVE_IBV_MLX5_MOD_SWP
+ dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_SWP;
+#endif
+ /*
+ * Multi-packet send is supported by ConnectX-4 Lx PF as well
+ * as all ConnectX-5 devices.
+ */
+#ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
+ dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS;
+#endif
+#ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
+ dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_STRIDING_RQ;
+#endif
+ mlx5_glue->dv_query_device(sh->ctx, &dv_attr);
+ if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED) {
+ if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW) {
+ DRV_LOG(DEBUG, "enhanced MPW is supported");
+ mps = MLX5_MPW_ENHANCED;
+ } else {
+ DRV_LOG(DEBUG, "MPW is supported");
+ mps = MLX5_MPW;
+ }
+ } else {
+ DRV_LOG(DEBUG, "MPW isn't supported");
+ mps = MLX5_MPW_DISABLED;
+ }
+#ifdef HAVE_IBV_MLX5_MOD_SWP
+ if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_SWP)
+ swp = dv_attr.sw_parsing_caps.sw_parsing_offloads;
+ DRV_LOG(DEBUG, "SWP support: %u", swp);
+#endif
+ config.swp = !!swp;
+#ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
+ if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_STRIDING_RQ) {
+ struct mlx5dv_striding_rq_caps mprq_caps =
+ dv_attr.striding_rq_caps;
+
+ DRV_LOG(DEBUG, "\tmin_single_stride_log_num_of_bytes: %d",
+ mprq_caps.min_single_stride_log_num_of_bytes);
+ DRV_LOG(DEBUG, "\tmax_single_stride_log_num_of_bytes: %d",
+ mprq_caps.max_single_stride_log_num_of_bytes);
+ DRV_LOG(DEBUG, "\tmin_single_wqe_log_num_of_strides: %d",
+ mprq_caps.min_single_wqe_log_num_of_strides);
+ DRV_LOG(DEBUG, "\tmax_single_wqe_log_num_of_strides: %d",
+ mprq_caps.max_single_wqe_log_num_of_strides);
+ DRV_LOG(DEBUG, "\tsupported_qpts: %d",
+ mprq_caps.supported_qpts);
+ DRV_LOG(DEBUG, "device supports Multi-Packet RQ");
+ mprq = 1;
+ mprq_min_stride_size_n =
+ mprq_caps.min_single_stride_log_num_of_bytes;
+ mprq_max_stride_size_n =
+ mprq_caps.max_single_stride_log_num_of_bytes;
+ mprq_min_stride_num_n =
+ mprq_caps.min_single_wqe_log_num_of_strides;
+ mprq_max_stride_num_n =
+ mprq_caps.max_single_wqe_log_num_of_strides;
+ config.mprq.stride_num_n = RTE_MAX(MLX5_MPRQ_STRIDE_NUM_N,
+ mprq_min_stride_num_n);
+ }
+#endif
+ if (RTE_CACHE_LINE_SIZE == 128 &&
+ !(dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP))
+ cqe_comp = 0;
+ else
+ cqe_comp = 1;
+ config.cqe_comp = cqe_comp;
+#ifdef HAVE_IBV_MLX5_MOD_CQE_128B_PAD
+ /* Whether device supports 128B Rx CQE padding. */
+ cqe_pad = RTE_CACHE_LINE_SIZE == 128 &&
+ (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_PAD);
+#endif
+#ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
+ if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS) {
+ tunnel_en = ((dv_attr.tunnel_offloads_caps &
+ MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_VXLAN) &&
+ (dv_attr.tunnel_offloads_caps &
+ MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GRE) &&
+ (dv_attr.tunnel_offloads_caps &
+ MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GENEVE));
+ }
+ DRV_LOG(DEBUG, "tunnel offloading is %ssupported",
+ tunnel_en ? "" : "not ");
+#else
+ DRV_LOG(WARNING,
+ "tunnel offloading disabled due to old OFED/rdma-core version");
+#endif
+ config.tunnel_en = tunnel_en;
+#ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
+ mpls_en = ((dv_attr.tunnel_offloads_caps &
+ MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_GRE) &&
+ (dv_attr.tunnel_offloads_caps &
+ MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_UDP));
+ DRV_LOG(DEBUG, "MPLS over GRE/UDP tunnel offloading is %ssupported",
+ mpls_en ? "" : "not ");
+#else
+ DRV_LOG(WARNING, "MPLS over GRE/UDP tunnel offloading disabled due to"
+ " old OFED/rdma-core version or firmware configuration");
+#endif
+ config.mpls_en = mpls_en;
+ /* Check port status. */
+ err = mlx5_glue->query_port(sh->ctx, spawn->ibv_port, &port_attr);
+ if (err) {
+ DRV_LOG(ERR, "port query failed: %s", strerror(err));
+ goto error;
+ }
+ if (port_attr.link_layer != IBV_LINK_LAYER_ETHERNET) {
+ DRV_LOG(ERR, "port is not configured in Ethernet mode");
+ err = EINVAL;
+ goto error;
+ }
+ if (port_attr.state != IBV_PORT_ACTIVE)
+ DRV_LOG(DEBUG, "port is not active: \"%s\" (%d)",
+ mlx5_glue->port_state_str(port_attr.state),
+ port_attr.state);
+ /* Allocate private eth device data. */
+ priv = rte_zmalloc("ethdev private structure",
+ sizeof(*priv),
+ RTE_CACHE_LINE_SIZE);
+ if (priv == NULL) {
+ DRV_LOG(ERR, "priv allocation failure");
+ err = ENOMEM;
+ goto error;
+ }
+ priv->sh = sh;
+ priv->ibv_port = spawn->ibv_port;
+ priv->pci_dev = spawn->pci_dev;
+ priv->mtu = RTE_ETHER_MTU;
+#ifndef RTE_ARCH_64
+ /* Initialize UAR access locks for 32bit implementations. */
+ rte_spinlock_init(&priv->uar_lock_cq);
+ for (i = 0; i < MLX5_UAR_PAGE_NUM_MAX; i++)
+ rte_spinlock_init(&priv->uar_lock[i]);
+#endif
+ /* Some internal functions rely on Netlink sockets, open them now. */
+ priv->nl_socket_rdma = mlx5_nl_init(NETLINK_RDMA);
+ priv->nl_socket_route = mlx5_nl_init(NETLINK_ROUTE);
+ priv->representor = !!switch_info->representor;
+ priv->master = !!switch_info->master;
+ priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID;
+ priv->vport_meta_tag = 0;
+ priv->vport_meta_mask = 0;
+ priv->pf_bond = spawn->pf_bond;
+#ifdef HAVE_MLX5DV_DR_DEVX_PORT
+ /*
+ * The DevX port query API is implemented. E-Switch may use
+ * either vport or reg_c[0] metadata register to match on
+ * vport index. The engaged part of metadata register is
+ * defined by mask.
+ */
+ if (switch_info->representor || switch_info->master) {
+ devx_port.comp_mask = MLX5DV_DEVX_PORT_VPORT |
+ MLX5DV_DEVX_PORT_MATCH_REG_C_0;
+ err = mlx5_glue->devx_port_query(sh->ctx, spawn->ibv_port,
+ &devx_port);
+ if (err) {
+ DRV_LOG(WARNING,
+ "can't query devx port %d on device %s",
+ spawn->ibv_port, spawn->ibv_dev->name);
+ devx_port.comp_mask = 0;
+ }
+ }
+ if (devx_port.comp_mask & MLX5DV_DEVX_PORT_MATCH_REG_C_0) {
+ priv->vport_meta_tag = devx_port.reg_c_0.value;
+ priv->vport_meta_mask = devx_port.reg_c_0.mask;
+ if (!priv->vport_meta_mask) {
+ DRV_LOG(ERR, "vport zero mask for port %d"
+ " on bonding device %s",
+ spawn->ibv_port, spawn->ibv_dev->name);
+ err = ENOTSUP;
+ goto error;
+ }
+ if (priv->vport_meta_tag & ~priv->vport_meta_mask) {
+ DRV_LOG(ERR, "invalid vport tag for port %d"
+ " on bonding device %s",
+ spawn->ibv_port, spawn->ibv_dev->name);
+ err = ENOTSUP;
+ goto error;
+ }
+ }
+ if (devx_port.comp_mask & MLX5DV_DEVX_PORT_VPORT) {
+ priv->vport_id = devx_port.vport_num;
+ } else if (spawn->pf_bond >= 0) {
+ DRV_LOG(ERR, "can't deduce vport index for port %d"
+ " on bonding device %s",
+ spawn->ibv_port, spawn->ibv_dev->name);
+ err = ENOTSUP;
+ goto error;
+ } else {
+ /* Suppose vport index in compatible way. */
+ priv->vport_id = switch_info->representor ?
+ switch_info->port_name + 1 : -1;
+ }
+#else
+ /*
+ * Kernel/rdma_core support single E-Switch per PF configurations
+ * only and vport_id field contains the vport index for
+ * associated VF, which is deduced from representor port name.
+ * For example, let's have the IB device port 10, it has
+ * attached network device eth0, which has port name attribute
+ * pf0vf2, we can deduce the VF number as 2, and set vport index
+ * as 3 (2+1). This assigning schema should be changed if the
+ * multiple E-Switch instances per PF configurations or/and PCI
+ * subfunctions are added.
+ */
+ priv->vport_id = switch_info->representor ?
+ switch_info->port_name + 1 : -1;
+#endif
+ /* representor_id field keeps the unmodified VF index. */
+ priv->representor_id = switch_info->representor ?
+ switch_info->port_name : -1;
+ /*
+ * Look for sibling devices in order to reuse their switch domain
+ * if any, otherwise allocate one.
+ */
+ MLX5_ETH_FOREACH_DEV(port_id, priv->pci_dev) {
+ const struct mlx5_priv *opriv =
+ rte_eth_devices[port_id].data->dev_private;
+
+ if (!opriv ||
+ opriv->sh != priv->sh ||
+ opriv->domain_id ==
+ RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
+ continue;
+ priv->domain_id = opriv->domain_id;
+ break;
+ }
+ if (priv->domain_id == RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) {
+ err = rte_eth_switch_domain_alloc(&priv->domain_id);
+ if (err) {
+ err = rte_errno;
+ DRV_LOG(ERR, "unable to allocate switch domain: %s",
+ strerror(rte_errno));
+ goto error;
+ }
+ own_domain_id = 1;
+ }
+ /* Override some values set by hardware configuration. */
+ mlx5_args(&config, dpdk_dev->devargs);
+ err = mlx5_dev_check_sibling_config(priv, &config);
+ if (err)
+ goto error;
+ config.hw_csum = !!(sh->device_attr.device_cap_flags_ex &
+ IBV_DEVICE_RAW_IP_CSUM);
+ DRV_LOG(DEBUG, "checksum offloading is %ssupported",
+ (config.hw_csum ? "" : "not "));
+#if !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) && \
+ !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
+ DRV_LOG(DEBUG, "counters are not supported");
+#endif
+#if !defined(HAVE_IBV_FLOW_DV_SUPPORT) || !defined(HAVE_MLX5DV_DR)
+ if (config.dv_flow_en) {
+ DRV_LOG(WARNING, "DV flow is not supported");
+ config.dv_flow_en = 0;
+ }
+#endif
+ config.ind_table_max_size =
+ sh->device_attr.rss_caps.max_rwq_indirection_table_size;
+ /*
+ * Remove this check once DPDK supports larger/variable
+ * indirection tables.
+ */
+ if (config.ind_table_max_size > (unsigned int)ETH_RSS_RETA_SIZE_512)
+ config.ind_table_max_size = ETH_RSS_RETA_SIZE_512;
+ DRV_LOG(DEBUG, "maximum Rx indirection table size is %u",
+ config.ind_table_max_size);
+ config.hw_vlan_strip = !!(sh->device_attr.raw_packet_caps &
+ IBV_RAW_PACKET_CAP_CVLAN_STRIPPING);
+ DRV_LOG(DEBUG, "VLAN stripping is %ssupported",
+ (config.hw_vlan_strip ? "" : "not "));
+ config.hw_fcs_strip = !!(sh->device_attr.raw_packet_caps &
+ IBV_RAW_PACKET_CAP_SCATTER_FCS);
+ DRV_LOG(DEBUG, "FCS stripping configuration is %ssupported",
+ (config.hw_fcs_strip ? "" : "not "));
+#if defined(HAVE_IBV_WQ_FLAG_RX_END_PADDING)
+ hw_padding = !!sh->device_attr.rx_pad_end_addr_align;
+#elif defined(HAVE_IBV_WQ_FLAGS_PCI_WRITE_END_PADDING)
+ hw_padding = !!(sh->device_attr.device_cap_flags_ex &
+ IBV_DEVICE_PCI_WRITE_END_PADDING);
+#endif
+ if (config.hw_padding && !hw_padding) {
+ DRV_LOG(DEBUG, "Rx end alignment padding isn't supported");
+ config.hw_padding = 0;
+ } else if (config.hw_padding) {
+ DRV_LOG(DEBUG, "Rx end alignment padding is enabled");
+ }
+ config.tso = (sh->device_attr.tso_caps.max_tso > 0 &&
+ (sh->device_attr.tso_caps.supported_qpts &
+ (1 << IBV_QPT_RAW_PACKET)));
+ if (config.tso)
+ config.tso_max_payload_sz = sh->device_attr.tso_caps.max_tso;
+ /*
+ * MPW is disabled by default, while the Enhanced MPW is enabled
+ * by default.
+ */
+ if (config.mps == MLX5_ARG_UNSET)
+ config.mps = (mps == MLX5_MPW_ENHANCED) ? MLX5_MPW_ENHANCED :
+ MLX5_MPW_DISABLED;
+ else
+ config.mps = config.mps ? mps : MLX5_MPW_DISABLED;
+ DRV_LOG(INFO, "%sMPS is %s",
+ config.mps == MLX5_MPW_ENHANCED ? "enhanced " :
+ config.mps == MLX5_MPW ? "legacy " : "",
+ config.mps != MLX5_MPW_DISABLED ? "enabled" : "disabled");
+ if (config.cqe_comp && !cqe_comp) {
+ DRV_LOG(WARNING, "Rx CQE compression isn't supported");
+ config.cqe_comp = 0;
+ }
+ if (config.cqe_pad && !cqe_pad) {
+ DRV_LOG(WARNING, "Rx CQE padding isn't supported");
+ config.cqe_pad = 0;
+ } else if (config.cqe_pad) {
+ DRV_LOG(INFO, "Rx CQE padding is enabled");
+ }
+ if (config.devx) {
+ priv->counter_fallback = 0;
+ err = mlx5_devx_cmd_query_hca_attr(sh->ctx, &config.hca_attr);
+ if (err) {
+ err = -err;
+ goto error;
+ }
+ if (!config.hca_attr.flow_counters_dump)
+ priv->counter_fallback = 1;
+#ifndef HAVE_IBV_DEVX_ASYNC
+ priv->counter_fallback = 1;
+#endif
+ if (priv->counter_fallback)
+ DRV_LOG(INFO, "Use fall-back DV counter management");
+ /* Check for LRO support. */
+ if (config.dest_tir && config.hca_attr.lro_cap &&
+ config.dv_flow_en) {
+ /* TBD check tunnel lro caps. */
+ config.lro.supported = config.hca_attr.lro_cap;
+ DRV_LOG(DEBUG, "Device supports LRO");
+ /*
+ * If LRO timeout is not configured by application,
+ * use the minimal supported value.
+ */
+ if (!config.lro.timeout)
+ config.lro.timeout =
+ config.hca_attr.lro_timer_supported_periods[0];
+ DRV_LOG(DEBUG, "LRO session timeout set to %d usec",
+ config.lro.timeout);
+ }
+#if defined(HAVE_MLX5DV_DR) && defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER)
+ if (config.hca_attr.qos.sup && config.hca_attr.qos.srtcm_sup &&
+ config.dv_flow_en) {
+ uint8_t reg_c_mask =
+ config.hca_attr.qos.flow_meter_reg_c_ids;
+ /*
+ * Meter needs two REG_C's for color match and pre-sfx
+ * flow match. Here get the REG_C for color match.
+ * REG_C_0 and REG_C_1 is reserved for metadata feature.
+ */
+ reg_c_mask &= 0xfc;
+ if (__builtin_popcount(reg_c_mask) < 1) {
+ priv->mtr_en = 0;
+ DRV_LOG(WARNING, "No available register for"
+ " meter.");
+ } else {
+ priv->mtr_color_reg = ffs(reg_c_mask) - 1 +
+ REG_C_0;
+ priv->mtr_en = 1;
+ priv->mtr_reg_share =
+ config.hca_attr.qos.flow_meter_reg_share;
+ DRV_LOG(DEBUG, "The REG_C meter uses is %d",
+ priv->mtr_color_reg);
+ }
+ }
+#endif
+ }
+ if (config.mprq.enabled && mprq) {
+ if (config.mprq.stride_num_n > mprq_max_stride_num_n ||
+ config.mprq.stride_num_n < mprq_min_stride_num_n) {
+ config.mprq.stride_num_n =
+ RTE_MAX(MLX5_MPRQ_STRIDE_NUM_N,
+ mprq_min_stride_num_n);
+ DRV_LOG(WARNING,
+ "the number of strides"
+ " for Multi-Packet RQ is out of range,"
+ " setting default value (%u)",
+ 1 << config.mprq.stride_num_n);
+ }
+ config.mprq.min_stride_size_n = mprq_min_stride_size_n;
+ config.mprq.max_stride_size_n = mprq_max_stride_size_n;
+ } else if (config.mprq.enabled && !mprq) {
+ DRV_LOG(WARNING, "Multi-Packet RQ isn't supported");
+ config.mprq.enabled = 0;
+ }
+ if (config.max_dump_files_num == 0)
+ config.max_dump_files_num = 128;
+ eth_dev = rte_eth_dev_allocate(name);
+ if (eth_dev == NULL) {
+ DRV_LOG(ERR, "can not allocate rte ethdev");
+ err = ENOMEM;
+ goto error;
+ }
+ /* Flag to call rte_eth_dev_release_port() in rte_eth_dev_close(). */
+ eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
+ if (priv->representor) {
+ eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR;
+ eth_dev->data->representor_id = priv->representor_id;
+ }
+ /*
+ * Store associated network device interface index. This index
+ * is permanent throughout the lifetime of device. So, we may store
+ * the ifindex here and use the cached value further.
+ */
+ MLX5_ASSERT(spawn->ifindex);
+ priv->if_index = spawn->ifindex;
+ eth_dev->data->dev_private = priv;
+ priv->dev_data = eth_dev->data;
+ eth_dev->data->mac_addrs = priv->mac;
+ eth_dev->device = dpdk_dev;
+ /* Configure the first MAC address by default. */
+ if (mlx5_get_mac(eth_dev, &mac.addr_bytes)) {
+ DRV_LOG(ERR,
+ "port %u cannot get MAC address, is mlx5_en"
+ " loaded? (errno: %s)",
+ eth_dev->data->port_id, strerror(rte_errno));
+ err = ENODEV;
+ goto error;
+ }
+ DRV_LOG(INFO,
+ "port %u MAC address is %02x:%02x:%02x:%02x:%02x:%02x",
+ eth_dev->data->port_id,
+ mac.addr_bytes[0], mac.addr_bytes[1],
+ mac.addr_bytes[2], mac.addr_bytes[3],
+ mac.addr_bytes[4], mac.addr_bytes[5]);
+#ifdef RTE_LIBRTE_MLX5_DEBUG
+ {
+ char ifname[IF_NAMESIZE];
+
+ if (mlx5_get_ifname(eth_dev, &ifname) == 0)
+ DRV_LOG(DEBUG, "port %u ifname is \"%s\"",
+ eth_dev->data->port_id, ifname);
+ else
+ DRV_LOG(DEBUG, "port %u ifname is unknown",
+ eth_dev->data->port_id);
+ }
+#endif
+ /* Get actual MTU if possible. */
+ err = mlx5_get_mtu(eth_dev, &priv->mtu);
+ if (err) {
+ err = rte_errno;
+ goto error;
+ }
+ DRV_LOG(DEBUG, "port %u MTU is %u", eth_dev->data->port_id,
+ priv->mtu);
+ /* Initialize burst functions to prevent crashes before link-up. */
+ eth_dev->rx_pkt_burst = removed_rx_burst;
+ eth_dev->tx_pkt_burst = removed_tx_burst;
+ eth_dev->dev_ops = &mlx5_dev_ops;
+ /* Register MAC address. */
+ claim_zero(mlx5_mac_addr_add(eth_dev, &mac, 0, 0));
+ if (config.vf && config.vf_nl_en)
+ mlx5_nl_mac_addr_sync(priv->nl_socket_route,
+ mlx5_ifindex(eth_dev),
+ eth_dev->data->mac_addrs,
+ MLX5_MAX_MAC_ADDRESSES);
+ TAILQ_INIT(&priv->flows);
+ TAILQ_INIT(&priv->ctrl_flows);
+ TAILQ_INIT(&priv->flow_meters);
+ TAILQ_INIT(&priv->flow_meter_profiles);
+ /* Hint libmlx5 to use PMD allocator for data plane resources */
+ struct mlx5dv_ctx_allocators alctr = {
+ .alloc = &mlx5_alloc_verbs_buf,
+ .free = &mlx5_free_verbs_buf,
+ .data = priv,
+ };
+ mlx5_glue->dv_set_context_attr(sh->ctx,
+ MLX5DV_CTX_ATTR_BUF_ALLOCATORS,
+ (void *)((uintptr_t)&alctr));
+ /* Bring Ethernet device up. */
+ DRV_LOG(DEBUG, "port %u forcing Ethernet interface up",
+ eth_dev->data->port_id);
+ mlx5_set_link_up(eth_dev);
+ /*
+ * Even though the interrupt handler is not installed yet,
+ * interrupts will still trigger on the async_fd from
+ * Verbs context returned by ibv_open_device().
+ */
+ mlx5_link_update(eth_dev, 0);
+#ifdef HAVE_MLX5DV_DR_ESWITCH
+ if (!(config.hca_attr.eswitch_manager && config.dv_flow_en &&
+ (switch_info->representor || switch_info->master)))
+ config.dv_esw_en = 0;
+#else
+ config.dv_esw_en = 0;
+#endif
+ /* Detect minimal data bytes to inline. */
+ mlx5_set_min_inline(spawn, &config);
+ /* Store device configuration on private structure. */
+ priv->config = config;
+ /* Create context for virtual machine VLAN workaround. */
+ priv->vmwa_context = mlx5_vlan_vmwa_init(eth_dev, spawn->ifindex);
+ if (config.dv_flow_en) {
+ err = mlx5_alloc_shared_dr(priv);
+ if (err)
+ goto error;
+ /*
+ * RSS id is shared with meter flow id. Meter flow id can only
+ * use the 24 MSB of the register.
+ */
+ priv->qrss_id_pool = mlx5_flow_id_pool_alloc(UINT32_MAX >>
+ MLX5_MTR_COLOR_BITS);
+ if (!priv->qrss_id_pool) {
+ DRV_LOG(ERR, "can't create flow id pool");
+ err = ENOMEM;
+ goto error;
+ }
+ }
+ /* Supported Verbs flow priority number detection. */
+ err = mlx5_flow_discover_priorities(eth_dev);
+ if (err < 0) {
+ err = -err;
+ goto error;
+ }
+ priv->config.flow_prio = err;
+ if (!priv->config.dv_esw_en &&
+ priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) {
+ DRV_LOG(WARNING, "metadata mode %u is not supported "
+ "(no E-Switch)", priv->config.dv_xmeta_en);
+ priv->config.dv_xmeta_en = MLX5_XMETA_MODE_LEGACY;
+ }
+ mlx5_set_metadata_mask(eth_dev);
+ if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
+ !priv->sh->dv_regc0_mask) {
+ DRV_LOG(ERR, "metadata mode %u is not supported "
+ "(no metadata reg_c[0] is available)",
+ priv->config.dv_xmeta_en);
+ err = ENOTSUP;
+ goto error;
+ }
+ /* Query availibility of metadata reg_c's. */
+ err = mlx5_flow_discover_mreg_c(eth_dev);
+ if (err < 0) {
+ err = -err;
+ goto error;
+ }
+ if (!mlx5_flow_ext_mreg_supported(eth_dev)) {
+ DRV_LOG(DEBUG,
+ "port %u extensive metadata register is not supported",
+ eth_dev->data->port_id);
+ if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) {
+ DRV_LOG(ERR, "metadata mode %u is not supported "
+ "(no metadata registers available)",
+ priv->config.dv_xmeta_en);
+ err = ENOTSUP;
+ goto error;
+ }
+ }
+ if (priv->config.dv_flow_en &&
+ priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
+ mlx5_flow_ext_mreg_supported(eth_dev) &&
+ priv->sh->dv_regc0_mask) {
+ priv->mreg_cp_tbl = mlx5_hlist_create(MLX5_FLOW_MREG_HNAME,
+ MLX5_FLOW_MREG_HTABLE_SZ);
+ if (!priv->mreg_cp_tbl) {
+ err = ENOMEM;
+ goto error;
+ }
+ }
+ return eth_dev;
+error:
+ if (priv) {
+ if (priv->mreg_cp_tbl)
+ mlx5_hlist_destroy(priv->mreg_cp_tbl, NULL, NULL);
+ if (priv->sh)
+ mlx5_free_shared_dr(priv);
+ if (priv->nl_socket_route >= 0)
+ close(priv->nl_socket_route);
+ if (priv->nl_socket_rdma >= 0)
+ close(priv->nl_socket_rdma);
+ if (priv->vmwa_context)
+ mlx5_vlan_vmwa_exit(priv->vmwa_context);
+ if (priv->qrss_id_pool)
+ mlx5_flow_id_pool_release(priv->qrss_id_pool);
+ if (own_domain_id)
+ claim_zero(rte_eth_switch_domain_free(priv->domain_id));
+ rte_free(priv);
+ if (eth_dev != NULL)
+ eth_dev->data->dev_private = NULL;
+ }
+ if (eth_dev != NULL) {
+ /* mac_addrs must not be freed alone because part of dev_private */
+ eth_dev->data->mac_addrs = NULL;
+ rte_eth_dev_release_port(eth_dev);
+ }
+ if (sh)
+ mlx5_free_shared_ibctx(sh);
+ MLX5_ASSERT(err > 0);
+ rte_errno = err;
+ return NULL;
+}
+
+/**
+ * Comparison callback to sort device data.
+ *
+ * This is meant to be used with qsort().
+ *
+ * @param a[in]
+ * Pointer to pointer to first data object.
+ * @param b[in]
+ * Pointer to pointer to second data object.
+ *
+ * @return
+ * 0 if both objects are equal, less than 0 if the first argument is less
+ * than the second, greater than 0 otherwise.
+ */
+static int
+mlx5_dev_spawn_data_cmp(const void *a, const void *b)
+{
+ const struct mlx5_switch_info *si_a =
+ &((const struct mlx5_dev_spawn_data *)a)->info;
+ const struct mlx5_switch_info *si_b =
+ &((const struct mlx5_dev_spawn_data *)b)->info;
+ int ret;
+
+ /* Master device first. */
+ ret = si_b->master - si_a->master;
+ if (ret)
+ return ret;
+ /* Then representor devices. */
+ ret = si_b->representor - si_a->representor;
+ if (ret)
+ return ret;
+ /* Unidentified devices come last in no specific order. */
+ if (!si_a->representor)
+ return 0;
+ /* Order representors by name. */
+ return si_a->port_name - si_b->port_name;
+}
+
+/**
+ * Match PCI information for possible slaves of bonding device.
+ *
+ * @param[in] ibv_dev
+ * Pointer to Infiniband device structure.
+ * @param[in] pci_dev
+ * Pointer to PCI device structure to match PCI address.
+ * @param[in] nl_rdma
+ * Netlink RDMA group socket handle.
+ *
+ * @return
+ * negative value if no bonding device found, otherwise
+ * positive index of slave PF in bonding.
+ */
+static int
+mlx5_device_bond_pci_match(const struct ibv_device *ibv_dev,
+ const struct rte_pci_device *pci_dev,
+ int nl_rdma)
+{
+ char ifname[IF_NAMESIZE + 1];
+ unsigned int ifindex;
+ unsigned int np, i;
+ FILE *file = NULL;
+ int pf = -1;
+
+ /*
+ * Try to get master device name. If something goes
+ * wrong suppose the lack of kernel support and no
+ * bonding devices.
+ */
+ if (nl_rdma < 0)
+ return -1;
+ if (!strstr(ibv_dev->name, "bond"))
+ return -1;
+ np = mlx5_nl_portnum(nl_rdma, ibv_dev->name);
+ if (!np)
+ return -1;
+ /*
+ * The Master device might not be on the predefined
+ * port (not on port index 1, it is not garanted),
+ * we have to scan all Infiniband device port and
+ * find master.
+ */
+ for (i = 1; i <= np; ++i) {
+ /* Check whether Infiniband port is populated. */
+ ifindex = mlx5_nl_ifindex(nl_rdma, ibv_dev->name, i);
+ if (!ifindex)
+ continue;
+ if (!if_indextoname(ifindex, ifname))
+ continue;
+ /* Try to read bonding slave names from sysfs. */
+ MKSTR(slaves,
+ "/sys/class/net/%s/master/bonding/slaves", ifname);
+ file = fopen(slaves, "r");
+ if (file)
+ break;
+ }
+ if (!file)
+ return -1;
+ /* Use safe format to check maximal buffer length. */
+ MLX5_ASSERT(atol(RTE_STR(IF_NAMESIZE)) == IF_NAMESIZE);
+ while (fscanf(file, "%" RTE_STR(IF_NAMESIZE) "s", ifname) == 1) {
+ char tmp_str[IF_NAMESIZE + 32];
+ struct rte_pci_addr pci_addr;
+ struct mlx5_switch_info info;
+
+ /* Process slave interface names in the loop. */
+ snprintf(tmp_str, sizeof(tmp_str),
+ "/sys/class/net/%s", ifname);
+ if (mlx5_dev_to_pci_addr(tmp_str, &pci_addr)) {
+ DRV_LOG(WARNING, "can not get PCI address"
+ " for netdev \"%s\"", ifname);
+ continue;
+ }
+ if (pci_dev->addr.domain != pci_addr.domain ||
+ pci_dev->addr.bus != pci_addr.bus ||
+ pci_dev->addr.devid != pci_addr.devid ||
+ pci_dev->addr.function != pci_addr.function)
+ continue;
+ /* Slave interface PCI address match found. */
+ fclose(file);
+ snprintf(tmp_str, sizeof(tmp_str),
+ "/sys/class/net/%s/phys_port_name", ifname);
+ file = fopen(tmp_str, "rb");
+ if (!file)
+ break;
+ info.name_type = MLX5_PHYS_PORT_NAME_TYPE_NOTSET;
+ if (fscanf(file, "%32s", tmp_str) == 1)
+ mlx5_translate_port_name(tmp_str, &info);
+ if (info.name_type == MLX5_PHYS_PORT_NAME_TYPE_LEGACY ||
+ info.name_type == MLX5_PHYS_PORT_NAME_TYPE_UPLINK)
+ pf = info.port_name;
+ break;
+ }
+ if (file)
+ fclose(file);
+ return pf;
}
/**
* DPDK callback to register a PCI device.
*
- * This function creates an Ethernet device for each port of a given
- * PCI device.
+ * This function spawns Ethernet devices out of a given PCI device.
*
* @param[in] pci_drv
* PCI driver structure (mlx5_driver).
mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
struct rte_pci_device *pci_dev)
{
- struct ibv_device **list = NULL;
- struct ibv_device *ibv_dev;
- int err = 0;
- struct ibv_context *attr_ctx = NULL;
- struct ibv_device_attr_ex device_attr;
- unsigned int vf;
- unsigned int mps;
- unsigned int cqe_comp;
- unsigned int tunnel_en = 0;
- unsigned int swp = 0;
- unsigned int verb_priorities = 0;
- unsigned int mprq = 0;
- unsigned int mprq_min_stride_size_n = 0;
- unsigned int mprq_max_stride_size_n = 0;
- unsigned int mprq_min_stride_num_n = 0;
- unsigned int mprq_max_stride_num_n = 0;
- int idx;
- int i;
- struct mlx5dv_context attrs_out = {0};
-#ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT
- struct ibv_counter_set_description cs_desc;
-#endif
+ struct ibv_device **ibv_list;
+ /*
+ * Number of found IB Devices matching with requested PCI BDF.
+ * nd != 1 means there are multiple IB devices over the same
+ * PCI device and we have representors and master.
+ */
+ unsigned int nd = 0;
+ /*
+ * Number of found IB device Ports. nd = 1 and np = 1..n means
+ * we have the single multiport IB device, and there may be
+ * representors attached to some of found ports.
+ */
+ unsigned int np = 0;
+ /*
+ * Number of DPDK ethernet devices to Spawn - either over
+ * multiple IB devices or multiple ports of single IB device.
+ * Actually this is the number of iterations to spawn.
+ */
+ unsigned int ns = 0;
+ /*
+ * Bonding device
+ * < 0 - no bonding device (single one)
+ * >= 0 - bonding device (value is slave PF index)
+ */
+ int bd = -1;
+ struct mlx5_dev_spawn_data *list = NULL;
+ struct mlx5_dev_config dev_config;
+ int ret;
- /* Prepare shared data between primary and secondary process. */
- mlx5_prepare_shared_data();
- assert(pci_drv == &mlx5_driver);
- /* Get mlx5_dev[] index. */
- idx = mlx5_dev_idx(&pci_dev->addr);
- if (idx == -1) {
- DRV_LOG(ERR, "this driver cannot support any more adapters");
- err = ENOMEM;
- goto error;
+ if (mlx5_class_get(pci_dev->device.devargs) != MLX5_CLASS_NET) {
+ DRV_LOG(DEBUG, "Skip probing - should be probed by other mlx5"
+ " driver.");
+ return 1;
}
- DRV_LOG(DEBUG, "using driver device index %d", idx);
- /* Save PCI address. */
- mlx5_dev[idx].pci_addr = pci_dev->addr;
- list = mlx5_glue->get_device_list(&i);
- if (list == NULL) {
- assert(errno);
- err = errno;
- if (errno == ENOSYS)
- DRV_LOG(ERR,
- "cannot list devices, is ib_uverbs loaded?");
- goto error;
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY)
+ mlx5_pmd_socket_init();
+ ret = mlx5_init_once();
+ if (ret) {
+ DRV_LOG(ERR, "unable to init PMD global data: %s",
+ strerror(rte_errno));
+ return -rte_errno;
+ }
+ MLX5_ASSERT(pci_drv == &mlx5_driver);
+ errno = 0;
+ ibv_list = mlx5_glue->get_device_list(&ret);
+ if (!ibv_list) {
+ rte_errno = errno ? errno : ENOSYS;
+ DRV_LOG(ERR, "cannot list devices, is ib_uverbs loaded?");
+ return -rte_errno;
}
- assert(i >= 0);
/*
- * For each listed device, check related sysfs entry against
- * the provided PCI ID.
+ * First scan the list of all Infiniband devices to find
+ * matching ones, gathering into the list.
*/
- while (i != 0) {
+ struct ibv_device *ibv_match[ret + 1];
+ int nl_route = mlx5_nl_init(NETLINK_ROUTE);
+ int nl_rdma = mlx5_nl_init(NETLINK_RDMA);
+ unsigned int i;
+
+ while (ret-- > 0) {
struct rte_pci_addr pci_addr;
- --i;
- DRV_LOG(DEBUG, "checking device \"%s\"", list[i]->name);
- if (mlx5_ibv_device_to_pci_addr(list[i], &pci_addr))
- continue;
- if ((pci_dev->addr.domain != pci_addr.domain) ||
- (pci_dev->addr.bus != pci_addr.bus) ||
- (pci_dev->addr.devid != pci_addr.devid) ||
- (pci_dev->addr.function != pci_addr.function))
- continue;
- DRV_LOG(INFO, "PCI information matches, using device \"%s\"",
- list[i]->name);
- vf = ((pci_dev->id.device_id ==
- PCI_DEVICE_ID_MELLANOX_CONNECTX4VF) ||
- (pci_dev->id.device_id ==
- PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF) ||
- (pci_dev->id.device_id ==
- PCI_DEVICE_ID_MELLANOX_CONNECTX5VF) ||
- (pci_dev->id.device_id ==
- PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF));
- attr_ctx = mlx5_glue->open_device(list[i]);
- rte_errno = errno;
- err = rte_errno;
- break;
- }
- if (attr_ctx == NULL) {
- switch (err) {
- case 0:
- DRV_LOG(ERR,
- "cannot access device, is mlx5_ib loaded?");
- err = ENODEV;
- break;
- case EINVAL:
- DRV_LOG(ERR,
- "cannot use device, are drivers up to date?");
+ DRV_LOG(DEBUG, "checking device \"%s\"", ibv_list[ret]->name);
+ bd = mlx5_device_bond_pci_match
+ (ibv_list[ret], pci_dev, nl_rdma);
+ if (bd >= 0) {
+ /*
+ * Bonding device detected. Only one match is allowed,
+ * the bonding is supported over multi-port IB device,
+ * there should be no matches on representor PCI
+ * functions or non VF LAG bonding devices with
+ * specified address.
+ */
+ if (nd) {
+ DRV_LOG(ERR,
+ "multiple PCI match on bonding device"
+ "\"%s\" found", ibv_list[ret]->name);
+ rte_errno = ENOENT;
+ ret = -rte_errno;
+ goto exit;
+ }
+ DRV_LOG(INFO, "PCI information matches for"
+ " slave %d bonding device \"%s\"",
+ bd, ibv_list[ret]->name);
+ ibv_match[nd++] = ibv_list[ret];
break;
}
- goto error;
+ if (mlx5_dev_to_pci_addr
+ (ibv_list[ret]->ibdev_path, &pci_addr))
+ continue;
+ if (pci_dev->addr.domain != pci_addr.domain ||
+ pci_dev->addr.bus != pci_addr.bus ||
+ pci_dev->addr.devid != pci_addr.devid ||
+ pci_dev->addr.function != pci_addr.function)
+ continue;
+ DRV_LOG(INFO, "PCI information matches for device \"%s\"",
+ ibv_list[ret]->name);
+ ibv_match[nd++] = ibv_list[ret];
}
- ibv_dev = list[i];
- DRV_LOG(DEBUG, "device opened");
-#ifdef HAVE_IBV_MLX5_MOD_SWP
- attrs_out.comp_mask |= MLX5DV_CONTEXT_MASK_SWP;
-#endif
- /*
- * Multi-packet send is supported by ConnectX-4 Lx PF as well
- * as all ConnectX-5 devices.
- */
-#ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
- attrs_out.comp_mask |= MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS;
-#endif
-#ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
- attrs_out.comp_mask |= MLX5DV_CONTEXT_MASK_STRIDING_RQ;
-#endif
- mlx5_glue->dv_query_device(attr_ctx, &attrs_out);
- if (attrs_out.flags & MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED) {
- if (attrs_out.flags & MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW) {
- DRV_LOG(DEBUG, "enhanced MPW is supported");
- mps = MLX5_MPW_ENHANCED;
- } else {
- DRV_LOG(DEBUG, "MPW is supported");
- mps = MLX5_MPW;
- }
- } else {
- DRV_LOG(DEBUG, "MPW isn't supported");
- mps = MLX5_MPW_DISABLED;
+ ibv_match[nd] = NULL;
+ if (!nd) {
+ /* No device matches, just complain and bail out. */
+ DRV_LOG(WARNING,
+ "no Verbs device matches PCI device " PCI_PRI_FMT ","
+ " are kernel drivers loaded?",
+ pci_dev->addr.domain, pci_dev->addr.bus,
+ pci_dev->addr.devid, pci_dev->addr.function);
+ rte_errno = ENOENT;
+ ret = -rte_errno;
+ goto exit;
}
-#ifdef HAVE_IBV_MLX5_MOD_SWP
- if (attrs_out.comp_mask & MLX5DV_CONTEXT_MASK_SWP)
- swp = attrs_out.sw_parsing_caps.sw_parsing_offloads;
- DRV_LOG(DEBUG, "SWP support: %u", swp);
-#endif
-#ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
- if (attrs_out.comp_mask & MLX5DV_CONTEXT_MASK_STRIDING_RQ) {
- struct mlx5dv_striding_rq_caps mprq_caps =
- attrs_out.striding_rq_caps;
-
- DRV_LOG(DEBUG, "\tmin_single_stride_log_num_of_bytes: %d",
- mprq_caps.min_single_stride_log_num_of_bytes);
- DRV_LOG(DEBUG, "\tmax_single_stride_log_num_of_bytes: %d",
- mprq_caps.max_single_stride_log_num_of_bytes);
- DRV_LOG(DEBUG, "\tmin_single_wqe_log_num_of_strides: %d",
- mprq_caps.min_single_wqe_log_num_of_strides);
- DRV_LOG(DEBUG, "\tmax_single_wqe_log_num_of_strides: %d",
- mprq_caps.max_single_wqe_log_num_of_strides);
- DRV_LOG(DEBUG, "\tsupported_qpts: %d",
- mprq_caps.supported_qpts);
- DRV_LOG(DEBUG, "device supports Multi-Packet RQ");
- mprq = 1;
- mprq_min_stride_size_n =
- mprq_caps.min_single_stride_log_num_of_bytes;
- mprq_max_stride_size_n =
- mprq_caps.max_single_stride_log_num_of_bytes;
- mprq_min_stride_num_n =
- mprq_caps.min_single_wqe_log_num_of_strides;
- mprq_max_stride_num_n =
- mprq_caps.max_single_wqe_log_num_of_strides;
+ if (nd == 1) {
+ /*
+ * Found single matching device may have multiple ports.
+ * Each port may be representor, we have to check the port
+ * number and check the representors existence.
+ */
+ if (nl_rdma >= 0)
+ np = mlx5_nl_portnum(nl_rdma, ibv_match[0]->name);
+ if (!np)
+ DRV_LOG(WARNING, "can not get IB device \"%s\""
+ " ports number", ibv_match[0]->name);
+ if (bd >= 0 && !np) {
+ DRV_LOG(ERR, "can not get ports"
+ " for bonding device");
+ rte_errno = ENOENT;
+ ret = -rte_errno;
+ goto exit;
+ }
}
-#endif
- if (RTE_CACHE_LINE_SIZE == 128 &&
- !(attrs_out.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP))
- cqe_comp = 0;
- else
- cqe_comp = 1;
-#ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
- if (attrs_out.comp_mask & MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS) {
- tunnel_en = ((attrs_out.tunnel_offloads_caps &
- MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_VXLAN) &&
- (attrs_out.tunnel_offloads_caps &
- MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GRE));
+#ifndef HAVE_MLX5DV_DR_DEVX_PORT
+ if (bd >= 0) {
+ /*
+ * This may happen if there is VF LAG kernel support and
+ * application is compiled with older rdma_core library.
+ */
+ DRV_LOG(ERR,
+ "No kernel/verbs support for VF LAG bonding found.");
+ rte_errno = ENOTSUP;
+ ret = -rte_errno;
+ goto exit;
}
- DRV_LOG(DEBUG, "tunnel offloading is %ssupported",
- tunnel_en ? "" : "not ");
-#else
- DRV_LOG(WARNING,
- "tunnel offloading disabled due to old OFED/rdma-core version");
#endif
- err = mlx5_glue->query_device_ex(attr_ctx, NULL, &device_attr);
- if (err) {
- DEBUG("ibv_query_device_ex() failed");
- goto error;
+ /*
+ * Now we can determine the maximal
+ * amount of devices to be spawned.
+ */
+ list = rte_zmalloc("device spawn data",
+ sizeof(struct mlx5_dev_spawn_data) *
+ (np ? np : nd),
+ RTE_CACHE_LINE_SIZE);
+ if (!list) {
+ DRV_LOG(ERR, "spawn data array allocation failure");
+ rte_errno = ENOMEM;
+ ret = -rte_errno;
+ goto exit;
}
- DRV_LOG(INFO, "%u port(s) detected",
- device_attr.orig_attr.phys_port_cnt);
- for (i = 0; i < device_attr.orig_attr.phys_port_cnt; i++) {
- char name[RTE_ETH_NAME_MAX_LEN];
- int len;
- uint32_t port = i + 1; /* ports are indexed from one */
- uint32_t test = (1 << i);
- struct ibv_context *ctx = NULL;
- struct ibv_port_attr port_attr;
- struct ibv_pd *pd = NULL;
- struct priv *priv = NULL;
- struct rte_eth_dev *eth_dev = NULL;
- struct ibv_device_attr_ex device_attr_ex;
- struct ether_addr mac;
- struct mlx5_dev_config config = {
- .cqe_comp = cqe_comp,
- .mps = mps,
- .tunnel_en = tunnel_en,
- .tx_vec_en = 1,
- .rx_vec_en = 1,
- .mpw_hdr_dseg = 0,
- .txq_inline = MLX5_ARG_UNSET,
- .txqs_inline = MLX5_ARG_UNSET,
- .inline_max_packet_sz = MLX5_ARG_UNSET,
- .vf_nl_en = 1,
- .swp = !!swp,
- .mprq = {
- .enabled = 0, /* Disabled by default. */
- .stride_num_n = RTE_MAX(MLX5_MPRQ_STRIDE_NUM_N,
- mprq_min_stride_num_n),
- .max_memcpy_len = MLX5_MPRQ_MEMCPY_DEFAULT_LEN,
- .min_rxqs_num = MLX5_MPRQ_MIN_RXQS,
- },
- };
-
- len = snprintf(name, sizeof(name), PCI_PRI_FMT,
- pci_dev->addr.domain, pci_dev->addr.bus,
- pci_dev->addr.devid, pci_dev->addr.function);
- if (device_attr.orig_attr.phys_port_cnt > 1)
- snprintf(name + len, sizeof(name), " port %u", i);
- mlx5_dev[idx].ports |= test;
- if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
- eth_dev = rte_eth_dev_attach_secondary(name);
- if (eth_dev == NULL) {
- DRV_LOG(ERR, "can not attach rte ethdev");
- rte_errno = ENOMEM;
- err = rte_errno;
- goto error;
- }
- eth_dev->device = &pci_dev->device;
- eth_dev->dev_ops = &mlx5_dev_sec_ops;
- err = mlx5_uar_init_secondary(eth_dev);
- if (err) {
- err = rte_errno;
- goto error;
+ if (bd >= 0 || np > 1) {
+ /*
+ * Single IB device with multiple ports found,
+ * it may be E-Switch master device and representors.
+ * We have to perform identification trough the ports.
+ */
+ MLX5_ASSERT(nl_rdma >= 0);
+ MLX5_ASSERT(ns == 0);
+ MLX5_ASSERT(nd == 1);
+ MLX5_ASSERT(np);
+ for (i = 1; i <= np; ++i) {
+ list[ns].max_port = np;
+ list[ns].ibv_port = i;
+ list[ns].ibv_dev = ibv_match[0];
+ list[ns].eth_dev = NULL;
+ list[ns].pci_dev = pci_dev;
+ list[ns].pf_bond = bd;
+ list[ns].ifindex = mlx5_nl_ifindex
+ (nl_rdma, list[ns].ibv_dev->name, i);
+ if (!list[ns].ifindex) {
+ /*
+ * No network interface index found for the
+ * specified port, it means there is no
+ * representor on this port. It's OK,
+ * there can be disabled ports, for example
+ * if sriov_numvfs < sriov_totalvfs.
+ */
+ continue;
}
- /* Receive command fd from primary process */
- err = mlx5_socket_connect(eth_dev);
- if (err < 0) {
- err = rte_errno;
- goto error;
+ ret = -1;
+ if (nl_route >= 0)
+ ret = mlx5_nl_switch_info
+ (nl_route,
+ list[ns].ifindex,
+ &list[ns].info);
+ if (ret || (!list[ns].info.representor &&
+ !list[ns].info.master)) {
+ /*
+ * We failed to recognize representors with
+ * Netlink, let's try to perform the task
+ * with sysfs.
+ */
+ ret = mlx5_sysfs_switch_info
+ (list[ns].ifindex,
+ &list[ns].info);
}
- /* Remap UAR for Tx queues. */
- err = mlx5_tx_uar_remap(eth_dev, err);
- if (err) {
- err = rte_errno;
- goto error;
+ if (!ret && bd >= 0) {
+ switch (list[ns].info.name_type) {
+ case MLX5_PHYS_PORT_NAME_TYPE_UPLINK:
+ if (list[ns].info.port_name == bd)
+ ns++;
+ break;
+ case MLX5_PHYS_PORT_NAME_TYPE_PFVF:
+ if (list[ns].info.pf_num == bd)
+ ns++;
+ break;
+ default:
+ break;
+ }
+ continue;
}
- /*
- * Ethdev pointer is still required as input since
- * the primary device is not accessible from the
- * secondary process.
- */
- eth_dev->rx_pkt_burst =
- mlx5_select_rx_function(eth_dev);
- eth_dev->tx_pkt_burst =
- mlx5_select_tx_function(eth_dev);
- continue;
- }
- DRV_LOG(DEBUG, "using port %u (%08" PRIx32 ")", port, test);
- ctx = mlx5_glue->open_device(ibv_dev);
- if (ctx == NULL) {
- err = ENODEV;
- goto port_error;
- }
- /* Check port status. */
- err = mlx5_glue->query_port(ctx, port, &port_attr);
- if (err) {
- DRV_LOG(ERR, "port query failed: %s", strerror(err));
- goto port_error;
- }
- if (port_attr.link_layer != IBV_LINK_LAYER_ETHERNET) {
- DRV_LOG(ERR,
- "port %d is not configured in Ethernet mode",
- port);
- err = EINVAL;
- goto port_error;
- }
- if (port_attr.state != IBV_PORT_ACTIVE)
- DRV_LOG(DEBUG, "port %d is not active: \"%s\" (%d)",
- port,
- mlx5_glue->port_state_str(port_attr.state),
- port_attr.state);
- /* Allocate protection domain. */
- pd = mlx5_glue->alloc_pd(ctx);
- if (pd == NULL) {
- DRV_LOG(ERR, "PD allocation failure");
- err = ENOMEM;
- goto port_error;
- }
- mlx5_dev[idx].ports |= test;
- /* from rte_ethdev.c */
- priv = rte_zmalloc("ethdev private structure",
- sizeof(*priv),
- RTE_CACHE_LINE_SIZE);
- if (priv == NULL) {
- DRV_LOG(ERR, "priv allocation failure");
- err = ENOMEM;
- goto port_error;
- }
- priv->ctx = ctx;
- strncpy(priv->ibdev_path, priv->ctx->device->ibdev_path,
- sizeof(priv->ibdev_path));
- priv->device_attr = device_attr;
- priv->port = port;
- priv->pd = pd;
- priv->mtu = ETHER_MTU;
- err = mlx5_args(&config, pci_dev->device.devargs);
- if (err) {
- DRV_LOG(ERR, "failed to process device arguments: %s",
- strerror(err));
- err = rte_errno;
- goto port_error;
+ if (!ret && (list[ns].info.representor ^
+ list[ns].info.master))
+ ns++;
}
- err = mlx5_glue->query_device_ex(ctx, NULL, &device_attr_ex);
- if (err) {
- DRV_LOG(ERR, "ibv_query_device_ex() failed");
- goto port_error;
- }
- config.hw_csum = !!(device_attr_ex.device_cap_flags_ex &
- IBV_DEVICE_RAW_IP_CSUM);
- DRV_LOG(DEBUG, "checksum offloading is %ssupported",
- (config.hw_csum ? "" : "not "));
-#ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT
- config.flow_counter_en = !!(device_attr.max_counter_sets);
- mlx5_glue->describe_counter_set(ctx, 0, &cs_desc);
- DRV_LOG(DEBUG,
- "counter type = %d, num of cs = %ld, attributes = %d",
- cs_desc.counter_type, cs_desc.num_of_cs,
- cs_desc.attributes);
-#endif
- config.ind_table_max_size =
- device_attr_ex.rss_caps.max_rwq_indirection_table_size;
- /* Remove this check once DPDK supports larger/variable
- * indirection tables. */
- if (config.ind_table_max_size >
- (unsigned int)ETH_RSS_RETA_SIZE_512)
- config.ind_table_max_size = ETH_RSS_RETA_SIZE_512;
- DRV_LOG(DEBUG, "maximum Rx indirection table size is %u",
- config.ind_table_max_size);
- config.hw_vlan_strip = !!(device_attr_ex.raw_packet_caps &
- IBV_RAW_PACKET_CAP_CVLAN_STRIPPING);
- DRV_LOG(DEBUG, "VLAN stripping is %ssupported",
- (config.hw_vlan_strip ? "" : "not "));
-
- config.hw_fcs_strip = !!(device_attr_ex.raw_packet_caps &
- IBV_RAW_PACKET_CAP_SCATTER_FCS);
- DRV_LOG(DEBUG, "FCS stripping configuration is %ssupported",
- (config.hw_fcs_strip ? "" : "not "));
-
-#ifdef HAVE_IBV_WQ_FLAG_RX_END_PADDING
- config.hw_padding = !!device_attr_ex.rx_pad_end_addr_align;
-#endif
- DRV_LOG(DEBUG,
- "hardware Rx end alignment padding is %ssupported",
- (config.hw_padding ? "" : "not "));
- config.vf = vf;
- config.tso = ((device_attr_ex.tso_caps.max_tso > 0) &&
- (device_attr_ex.tso_caps.supported_qpts &
- (1 << IBV_QPT_RAW_PACKET)));
- if (config.tso)
- config.tso_max_payload_sz =
- device_attr_ex.tso_caps.max_tso;
- if (config.mps && !mps) {
+ if (!ns) {
DRV_LOG(ERR,
- "multi-packet send not supported on this device"
- " (" MLX5_TXQ_MPW_EN ")");
- err = ENOTSUP;
- goto port_error;
- }
- DRV_LOG(INFO, "%s MPS is %s",
- config.mps == MLX5_MPW_ENHANCED ? "enhanced " : "",
- config.mps != MLX5_MPW_DISABLED ? "enabled" :
- "disabled");
- if (config.cqe_comp && !cqe_comp) {
- DRV_LOG(WARNING, "Rx CQE compression isn't supported");
- config.cqe_comp = 0;
+ "unable to recognize master/representors"
+ " on the IB device with multiple ports");
+ rte_errno = ENOENT;
+ ret = -rte_errno;
+ goto exit;
}
- config.mprq.enabled = config.mprq.enabled && mprq;
- if (config.mprq.enabled) {
- if (config.mprq.stride_num_n > mprq_max_stride_num_n ||
- config.mprq.stride_num_n < mprq_min_stride_num_n) {
- config.mprq.stride_num_n =
- RTE_MAX(MLX5_MPRQ_STRIDE_NUM_N,
- mprq_min_stride_num_n);
- DRV_LOG(WARNING,
- "the number of strides"
- " for Multi-Packet RQ is out of range,"
- " setting default value (%u)",
- 1 << config.mprq.stride_num_n);
+ } else {
+ /*
+ * The existence of several matching entries (nd > 1) means
+ * port representors have been instantiated. No existing Verbs
+ * call nor sysfs entries can tell them apart, this can only
+ * be done through Netlink calls assuming kernel drivers are
+ * recent enough to support them.
+ *
+ * In the event of identification failure through Netlink,
+ * try again through sysfs, then:
+ *
+ * 1. A single IB device matches (nd == 1) with single
+ * port (np=0/1) and is not a representor, assume
+ * no switch support.
+ *
+ * 2. Otherwise no safe assumptions can be made;
+ * complain louder and bail out.
+ */
+ np = 1;
+ for (i = 0; i != nd; ++i) {
+ memset(&list[ns].info, 0, sizeof(list[ns].info));
+ list[ns].max_port = 1;
+ list[ns].ibv_port = 1;
+ list[ns].ibv_dev = ibv_match[i];
+ list[ns].eth_dev = NULL;
+ list[ns].pci_dev = pci_dev;
+ list[ns].pf_bond = -1;
+ list[ns].ifindex = 0;
+ if (nl_rdma >= 0)
+ list[ns].ifindex = mlx5_nl_ifindex
+ (nl_rdma, list[ns].ibv_dev->name, 1);
+ if (!list[ns].ifindex) {
+ char ifname[IF_NAMESIZE];
+
+ /*
+ * Netlink failed, it may happen with old
+ * ib_core kernel driver (before 4.16).
+ * We can assume there is old driver because
+ * here we are processing single ports IB
+ * devices. Let's try sysfs to retrieve
+ * the ifindex. The method works for
+ * master device only.
+ */
+ if (nd > 1) {
+ /*
+ * Multiple devices found, assume
+ * representors, can not distinguish
+ * master/representor and retrieve
+ * ifindex via sysfs.
+ */
+ continue;
+ }
+ ret = mlx5_get_master_ifname
+ (ibv_match[i]->ibdev_path, &ifname);
+ if (!ret)
+ list[ns].ifindex =
+ if_nametoindex(ifname);
+ if (!list[ns].ifindex) {
+ /*
+ * No network interface index found
+ * for the specified device, it means
+ * there it is neither representor
+ * nor master.
+ */
+ continue;
+ }
+ }
+ ret = -1;
+ if (nl_route >= 0)
+ ret = mlx5_nl_switch_info
+ (nl_route,
+ list[ns].ifindex,
+ &list[ns].info);
+ if (ret || (!list[ns].info.representor &&
+ !list[ns].info.master)) {
+ /*
+ * We failed to recognize representors with
+ * Netlink, let's try to perform the task
+ * with sysfs.
+ */
+ ret = mlx5_sysfs_switch_info
+ (list[ns].ifindex,
+ &list[ns].info);
+ }
+ if (!ret && (list[ns].info.representor ^
+ list[ns].info.master)) {
+ ns++;
+ } else if ((nd == 1) &&
+ !list[ns].info.representor &&
+ !list[ns].info.master) {
+ /*
+ * Single IB device with
+ * one physical port and
+ * attached network device.
+ * May be SRIOV is not enabled
+ * or there is no representors.
+ */
+ DRV_LOG(INFO, "no E-Switch support detected");
+ ns++;
+ break;
}
- config.mprq.min_stride_size_n = mprq_min_stride_size_n;
- config.mprq.max_stride_size_n = mprq_max_stride_size_n;
- }
- eth_dev = rte_eth_dev_allocate(name);
- if (eth_dev == NULL) {
- DRV_LOG(ERR, "can not allocate rte ethdev");
- err = ENOMEM;
- goto port_error;
- }
- eth_dev->data->dev_private = priv;
- priv->dev_data = eth_dev->data;
- eth_dev->data->mac_addrs = priv->mac;
- eth_dev->device = &pci_dev->device;
- rte_eth_copy_pci_info(eth_dev, pci_dev);
- eth_dev->device->driver = &mlx5_driver.driver;
- err = mlx5_uar_init_primary(eth_dev);
- if (err) {
- err = rte_errno;
- goto port_error;
}
- /* Configure the first MAC address by default. */
- if (mlx5_get_mac(eth_dev, &mac.addr_bytes)) {
+ if (!ns) {
DRV_LOG(ERR,
- "port %u cannot get MAC address, is mlx5_en"
- " loaded? (errno: %s)",
- eth_dev->data->port_id, strerror(errno));
- err = ENODEV;
- goto port_error;
- }
- DRV_LOG(INFO,
- "port %u MAC address is %02x:%02x:%02x:%02x:%02x:%02x",
- eth_dev->data->port_id,
- mac.addr_bytes[0], mac.addr_bytes[1],
- mac.addr_bytes[2], mac.addr_bytes[3],
- mac.addr_bytes[4], mac.addr_bytes[5]);
-#ifndef NDEBUG
- {
- char ifname[IF_NAMESIZE];
-
- if (mlx5_get_ifname(eth_dev, &ifname) == 0)
- DRV_LOG(DEBUG, "port %u ifname is \"%s\"",
- eth_dev->data->port_id, ifname);
- else
- DRV_LOG(DEBUG, "port %u ifname is unknown",
- eth_dev->data->port_id);
- }
-#endif
- /* Get actual MTU if possible. */
- err = mlx5_get_mtu(eth_dev, &priv->mtu);
- if (err) {
- err = rte_errno;
- goto port_error;
- }
- DRV_LOG(DEBUG, "port %u MTU is %u", eth_dev->data->port_id,
- priv->mtu);
- /*
- * Initialize burst functions to prevent crashes before link-up.
- */
- eth_dev->rx_pkt_burst = removed_rx_burst;
- eth_dev->tx_pkt_burst = removed_tx_burst;
- eth_dev->dev_ops = &mlx5_dev_ops;
- /* Register MAC address. */
- claim_zero(mlx5_mac_addr_add(eth_dev, &mac, 0, 0));
- priv->nl_socket = -1;
- priv->nl_sn = 0;
- if (vf && config.vf_nl_en) {
- priv->nl_socket = mlx5_nl_init(RTMGRP_LINK);
- if (priv->nl_socket < 0)
- priv->nl_socket = -1;
- mlx5_nl_mac_addr_sync(eth_dev);
+ "unable to recognize master/representors"
+ " on the multiple IB devices");
+ rte_errno = ENOENT;
+ ret = -rte_errno;
+ goto exit;
}
- TAILQ_INIT(&priv->flows);
- TAILQ_INIT(&priv->ctrl_flows);
- /* Hint libmlx5 to use PMD allocator for data plane resources */
- struct mlx5dv_ctx_allocators alctr = {
- .alloc = &mlx5_alloc_verbs_buf,
- .free = &mlx5_free_verbs_buf,
- .data = priv,
- };
- mlx5_glue->dv_set_context_attr(ctx,
- MLX5DV_CTX_ATTR_BUF_ALLOCATORS,
- (void *)((uintptr_t)&alctr));
- /* Bring Ethernet device up. */
- DRV_LOG(DEBUG, "port %u forcing Ethernet interface up",
- eth_dev->data->port_id);
- mlx5_set_link_up(eth_dev);
- /*
- * Even though the interrupt handler is not installed yet,
- * interrupts will still trigger on the asyn_fd from
- * Verbs context returned by ibv_open_device().
- */
- mlx5_link_update(eth_dev, 0);
- /* Store device configuration on private structure. */
- priv->config = config;
- /* Create drop queue. */
- err = mlx5_flow_create_drop_queue(eth_dev);
- if (err) {
- DRV_LOG(ERR, "port %u drop queue allocation failed: %s",
- eth_dev->data->port_id, strerror(rte_errno));
- err = rte_errno;
- goto port_error;
+ }
+ MLX5_ASSERT(ns);
+ /*
+ * Sort list to probe devices in natural order for users convenience
+ * (i.e. master first, then representors from lowest to highest ID).
+ */
+ qsort(list, ns, sizeof(*list), mlx5_dev_spawn_data_cmp);
+ /* Default configuration. */
+ dev_config = (struct mlx5_dev_config){
+ .hw_padding = 0,
+ .mps = MLX5_ARG_UNSET,
+ .dbnc = MLX5_ARG_UNSET,
+ .rx_vec_en = 1,
+ .txq_inline_max = MLX5_ARG_UNSET,
+ .txq_inline_min = MLX5_ARG_UNSET,
+ .txq_inline_mpw = MLX5_ARG_UNSET,
+ .txqs_inline = MLX5_ARG_UNSET,
+ .vf_nl_en = 1,
+ .mr_ext_memseg_en = 1,
+ .mprq = {
+ .enabled = 0, /* Disabled by default. */
+ .stride_num_n = MLX5_MPRQ_STRIDE_NUM_N,
+ .max_memcpy_len = MLX5_MPRQ_MEMCPY_DEFAULT_LEN,
+ .min_rxqs_num = MLX5_MPRQ_MIN_RXQS,
+ },
+ .dv_esw_en = 1,
+ .dv_flow_en = 1,
+ };
+ /* Device specific configuration. */
+ switch (pci_dev->id.device_id) {
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF:
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF:
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX5VF:
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF:
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX5BFVF:
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX6VF:
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX6DXVF:
+ dev_config.vf = 1;
+ break;
+ default:
+ break;
+ }
+ for (i = 0; i != ns; ++i) {
+ uint32_t restore;
+
+ list[i].eth_dev = mlx5_dev_spawn(&pci_dev->device,
+ &list[i],
+ dev_config);
+ if (!list[i].eth_dev) {
+ if (rte_errno != EBUSY && rte_errno != EEXIST)
+ break;
+ /* Device is disabled or already spawned. Ignore it. */
+ continue;
}
- /* Supported Verbs flow priority number detection. */
- if (verb_priorities == 0)
- verb_priorities = mlx5_get_max_verbs_prio(eth_dev);
- if (verb_priorities < MLX5_VERBS_FLOW_PRIO_8) {
- DRV_LOG(ERR, "port %u wrong Verbs flow priorities: %u",
- eth_dev->data->port_id, verb_priorities);
- goto port_error;
+ restore = list[i].eth_dev->data->dev_flags;
+ rte_eth_copy_pci_info(list[i].eth_dev, pci_dev);
+ /* Restore non-PCI flags cleared by the above call. */
+ list[i].eth_dev->data->dev_flags |= restore;
+ mlx5_dev_interrupt_handler_devx_install(list[i].eth_dev);
+ rte_eth_dev_probing_finish(list[i].eth_dev);
+ }
+ if (i != ns) {
+ DRV_LOG(ERR,
+ "probe of PCI device " PCI_PRI_FMT " aborted after"
+ " encountering an error: %s",
+ pci_dev->addr.domain, pci_dev->addr.bus,
+ pci_dev->addr.devid, pci_dev->addr.function,
+ strerror(rte_errno));
+ ret = -rte_errno;
+ /* Roll back. */
+ while (i--) {
+ if (!list[i].eth_dev)
+ continue;
+ mlx5_dev_close(list[i].eth_dev);
+ /* mac_addrs must not be freed because in dev_private */
+ list[i].eth_dev->data->mac_addrs = NULL;
+ claim_zero(rte_eth_dev_release_port(list[i].eth_dev));
}
- priv->config.max_verbs_prio = verb_priorities;
- continue;
-port_error:
- if (priv)
- rte_free(priv);
- if (pd)
- claim_zero(mlx5_glue->dealloc_pd(pd));
- if (ctx)
- claim_zero(mlx5_glue->close_device(ctx));
- if (eth_dev && rte_eal_process_type() == RTE_PROC_PRIMARY)
- rte_eth_dev_release_port(eth_dev);
- break;
+ /* Restore original error. */
+ rte_errno = -ret;
+ } else {
+ ret = 0;
}
+exit:
/*
- * XXX if something went wrong in the loop above, there is a resource
- * leak (ctx, pd, priv, dpdk ethdev) but we can do nothing about it as
- * long as the dpdk does not provide a way to deallocate a ethdev and a
- * way to enumerate the registered ethdevs to free the previous ones.
+ * Do the routine cleanup:
+ * - close opened Netlink sockets
+ * - free allocated spawn data array
+ * - free the Infiniband device list
*/
- /* no port found, complain */
- if (!mlx5_dev[idx].ports) {
- rte_errno = ENODEV;
- err = rte_errno;
- }
-error:
- if (attr_ctx)
- claim_zero(mlx5_glue->close_device(attr_ctx));
+ if (nl_rdma >= 0)
+ close(nl_rdma);
+ if (nl_route >= 0)
+ close(nl_route);
if (list)
- mlx5_glue->free_device_list(list);
- if (err) {
- rte_errno = err;
- return -rte_errno;
+ rte_free(list);
+ MLX5_ASSERT(ibv_list);
+ mlx5_glue->free_device_list(ibv_list);
+ return ret;
+}
+
+/**
+ * Look for the ethernet device belonging to mlx5 driver.
+ *
+ * @param[in] port_id
+ * port_id to start looking for device.
+ * @param[in] pci_dev
+ * Pointer to the hint PCI device. When device is being probed
+ * the its siblings (master and preceding representors might
+ * not have assigned driver yet (because the mlx5_pci_probe()
+ * is not completed yet, for this case match on hint PCI
+ * device may be used to detect sibling device.
+ *
+ * @return
+ * port_id of found device, RTE_MAX_ETHPORT if not found.
+ */
+uint16_t
+mlx5_eth_find_next(uint16_t port_id, struct rte_pci_device *pci_dev)
+{
+ while (port_id < RTE_MAX_ETHPORTS) {
+ struct rte_eth_dev *dev = &rte_eth_devices[port_id];
+
+ if (dev->state != RTE_ETH_DEV_UNUSED &&
+ dev->device &&
+ (dev->device == &pci_dev->device ||
+ (dev->device->driver &&
+ dev->device->driver->name &&
+ !strcmp(dev->device->driver->name, MLX5_DRIVER_NAME))))
+ break;
+ port_id++;
}
+ if (port_id >= RTE_MAX_ETHPORTS)
+ return RTE_MAX_ETHPORTS;
+ return port_id;
+}
+
+/**
+ * DPDK callback to remove a PCI device.
+ *
+ * This function removes all Ethernet devices belong to a given PCI device.
+ *
+ * @param[in] pci_dev
+ * Pointer to the PCI device.
+ *
+ * @return
+ * 0 on success, the function cannot fail.
+ */
+static int
+mlx5_pci_remove(struct rte_pci_device *pci_dev)
+{
+ uint16_t port_id;
+
+ RTE_ETH_FOREACH_DEV_OF(port_id, &pci_dev->device)
+ rte_eth_dev_close(port_id);
return 0;
}
RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF)
},
+ {
+ RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
+ PCI_DEVICE_ID_MELLANOX_CONNECTX5BF)
+ },
+ {
+ RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
+ PCI_DEVICE_ID_MELLANOX_CONNECTX5BFVF)
+ },
+ {
+ RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
+ PCI_DEVICE_ID_MELLANOX_CONNECTX6)
+ },
+ {
+ RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
+ PCI_DEVICE_ID_MELLANOX_CONNECTX6VF)
+ },
+ {
+ RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
+ PCI_DEVICE_ID_MELLANOX_CONNECTX6DX)
+ },
+ {
+ RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
+ PCI_DEVICE_ID_MELLANOX_CONNECTX6DXVF)
+ },
{
.vendor_id = 0
}
},
.id_table = mlx5_pci_id_map,
.probe = mlx5_pci_probe,
- .drv_flags = RTE_PCI_DRV_INTR_LSC | RTE_PCI_DRV_INTR_RMV,
+ .remove = mlx5_pci_remove,
+ .dma_map = mlx5_dma_map,
+ .dma_unmap = mlx5_dma_unmap,
+ .drv_flags = RTE_PCI_DRV_INTR_LSC | RTE_PCI_DRV_INTR_RMV |
+ RTE_PCI_DRV_PROBE_AGAIN,
};
-#ifdef RTE_LIBRTE_MLX5_DLOPEN_DEPS
-
-/**
- * Suffix RTE_EAL_PMD_PATH with "-glue".
- *
- * This function performs a sanity check on RTE_EAL_PMD_PATH before
- * suffixing its last component.
- *
- * @param buf[out]
- * Output buffer, should be large enough otherwise NULL is returned.
- * @param size
- * Size of @p out.
- *
- * @return
- * Pointer to @p buf or @p NULL in case suffix cannot be appended.
- */
-static char *
-mlx5_glue_path(char *buf, size_t size)
-{
- static const char *const bad[] = { "/", ".", "..", NULL };
- const char *path = RTE_EAL_PMD_PATH;
- size_t len = strlen(path);
- size_t off;
- int i;
-
- while (len && path[len - 1] == '/')
- --len;
- for (off = len; off && path[off - 1] != '/'; --off)
- ;
- for (i = 0; bad[i]; ++i)
- if (!strncmp(path + off, bad[i], (int)(len - off)))
- goto error;
- i = snprintf(buf, size, "%.*s-glue", (int)len, path);
- if (i == -1 || (size_t)i >= size)
- goto error;
- return buf;
-error:
- DRV_LOG(ERR,
- "unable to append \"-glue\" to last component of"
- " RTE_EAL_PMD_PATH (\"" RTE_EAL_PMD_PATH "\"),"
- " please re-configure DPDK");
- return NULL;
-}
-
-/**
- * Initialization routine for run-time dependency on rdma-core.
- */
-static int
-mlx5_glue_init(void)
-{
- char glue_path[sizeof(RTE_EAL_PMD_PATH) - 1 + sizeof("-glue")];
- const char *path[] = {
- /*
- * A basic security check is necessary before trusting
- * MLX5_GLUE_PATH, which may override RTE_EAL_PMD_PATH.
- */
- (geteuid() == getuid() && getegid() == getgid() ?
- getenv("MLX5_GLUE_PATH") : NULL),
- /*
- * When RTE_EAL_PMD_PATH is set, use its glue-suffixed
- * variant, otherwise let dlopen() look up libraries on its
- * own.
- */
- (*RTE_EAL_PMD_PATH ?
- mlx5_glue_path(glue_path, sizeof(glue_path)) : ""),
- };
- unsigned int i = 0;
- void *handle = NULL;
- void **sym;
- const char *dlmsg;
-
- while (!handle && i != RTE_DIM(path)) {
- const char *end;
- size_t len;
- int ret;
-
- if (!path[i]) {
- ++i;
- continue;
- }
- end = strpbrk(path[i], ":;");
- if (!end)
- end = path[i] + strlen(path[i]);
- len = end - path[i];
- ret = 0;
- do {
- char name[ret + 1];
-
- ret = snprintf(name, sizeof(name), "%.*s%s" MLX5_GLUE,
- (int)len, path[i],
- (!len || *(end - 1) == '/') ? "" : "/");
- if (ret == -1)
- break;
- if (sizeof(name) != (size_t)ret + 1)
- continue;
- DRV_LOG(DEBUG, "looking for rdma-core glue as \"%s\"",
- name);
- handle = dlopen(name, RTLD_LAZY);
- break;
- } while (1);
- path[i] = end + 1;
- if (!*end)
- ++i;
- }
- if (!handle) {
- rte_errno = EINVAL;
- dlmsg = dlerror();
- if (dlmsg)
- DRV_LOG(WARNING, "cannot load glue library: %s", dlmsg);
- goto glue_error;
- }
- sym = dlsym(handle, "mlx5_glue");
- if (!sym || !*sym) {
- rte_errno = EINVAL;
- dlmsg = dlerror();
- if (dlmsg)
- DRV_LOG(ERR, "cannot resolve glue symbol: %s", dlmsg);
- goto glue_error;
- }
- mlx5_glue = *sym;
- return 0;
-glue_error:
- if (handle)
- dlclose(handle);
- DRV_LOG(WARNING,
- "cannot initialize PMD due to missing run-time dependency on"
- " rdma-core libraries (libibverbs, libmlx5)");
- return -rte_errno;
-}
-
-#endif
-
/**
* Driver initialization routine.
*/
-RTE_INIT(rte_mlx5_pmd_init);
-static void
-rte_mlx5_pmd_init(void)
+RTE_INIT(rte_mlx5_pmd_init)
{
+ /* Initialize driver log type. */
+ mlx5_logtype = rte_log_register("pmd.net.mlx5");
+ if (mlx5_logtype >= 0)
+ rte_log_set_level(mlx5_logtype, RTE_LOG_NOTICE);
+
/* Build the static tables for Verbs conversion. */
mlx5_set_ptype_table();
mlx5_set_cksum_table();
mlx5_set_swp_types_table();
- /*
- * RDMAV_HUGEPAGES_SAFE tells ibv_fork_init() we intend to use
- * huge pages. Calling ibv_fork_init() during init allows
- * applications to use fork() safely for purposes other than
- * using this PMD, which is not supported in forked processes.
- */
- setenv("RDMAV_HUGEPAGES_SAFE", "1", 1);
- /* Match the size of Rx completion entry to the size of a cacheline. */
- if (RTE_CACHE_LINE_SIZE == 128)
- setenv("MLX5_CQE_SIZE", "128", 0);
-#ifdef RTE_LIBRTE_MLX5_DLOPEN_DEPS
- if (mlx5_glue_init())
- return;
- assert(mlx5_glue);
-#endif
-#ifndef NDEBUG
- /* Glue structure must not contain any NULL pointers. */
- {
- unsigned int i;
-
- for (i = 0; i != sizeof(*mlx5_glue) / sizeof(void *); ++i)
- assert(((const void *const *)mlx5_glue)[i]);
- }
-#endif
- if (strcmp(mlx5_glue->version, MLX5_GLUE_VERSION)) {
- DRV_LOG(ERR,
- "rdma-core glue \"%s\" mismatch: \"%s\" is required",
- mlx5_glue->version, MLX5_GLUE_VERSION);
- return;
- }
- mlx5_glue->fork_init();
- rte_pci_register(&mlx5_driver);
- rte_mem_event_callback_register("MLX5_MEM_EVENT_CB",
- mlx5_mr_mem_event_cb, NULL);
+ if (mlx5_glue)
+ rte_pci_register(&mlx5_driver);
}
RTE_PMD_EXPORT_NAME(net_mlx5, __COUNTER__);
RTE_PMD_REGISTER_PCI_TABLE(net_mlx5, mlx5_pci_id_map);
RTE_PMD_REGISTER_KMOD_DEP(net_mlx5, "* ib_uverbs & mlx5_core & mlx5_ib");
-
-/** Initialize driver log type. */
-RTE_INIT(vdev_netvsc_init_log)
-{
- mlx5_logtype = rte_log_register("pmd.net.mlx5");
- if (mlx5_logtype >= 0)
- rte_log_set_level(mlx5_logtype, RTE_LOG_NOTICE);
-}
git.droids-corp.org / dpdk.git / blobdiff