common/mlx5: introduce common library
[dpdk.git] / drivers / net / mlx5 / mlx5.c
index b686129..8fbe826 100644 (file)
@@ -7,7 +7,6 @@
 #include <unistd.h>
 #include <string.h>
 #include <assert.h>
-#include <dlfcn.h>
 #include <stdint.h>
 #include <stdlib.h>
 #include <errno.h>
 #include <rte_string_fns.h>
 #include <rte_alarm.h>
 
+#include <mlx5_glue.h>
+#include <mlx5_devx_cmds.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"
 
@@ -196,11 +197,14 @@ static pthread_mutex_t mlx5_ibv_list_mutex = PTHREAD_MUTEX_INITIALIZER;
 /**
  * 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.
  */
 struct mlx5_flow_id_pool *
-mlx5_flow_id_pool_alloc(void)
+mlx5_flow_id_pool_alloc(uint32_t max_id)
 {
        struct mlx5_flow_id_pool *pool;
        void *mem;
@@ -223,6 +227,7 @@ mlx5_flow_id_pool_alloc(void)
        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);
@@ -257,7 +262,7 @@ uint32_t
 mlx5_flow_id_get(struct mlx5_flow_id_pool *pool, uint32_t *id)
 {
        if (pool->curr == pool->free_arr) {
-               if (pool->base_index == UINT32_MAX) {
+               if (pool->base_index == pool->max_id) {
                        rte_errno  = ENOMEM;
                        DRV_LOG(ERR, "no free id");
                        return -rte_errno;
@@ -443,7 +448,8 @@ mlx5_config_doorbell_mapping_env(const struct mlx5_dev_config *config)
        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 ? "1" : "0", 1);
+               setenv(MLX5_SHUT_UP_BF,
+                      config->dbnc == MLX5_TXDB_NCACHED ? "1" : "0", 1);
        return value;
 }
 
@@ -589,7 +595,7 @@ mlx5_alloc_shared_ibctx(const struct mlx5_dev_spawn_data *spawn,
                        goto error;
                }
        }
-       sh->flow_id_pool = mlx5_flow_id_pool_alloc();
+       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;
@@ -865,13 +871,26 @@ error:
 static int
 mlx5_alloc_shared_dr(struct mlx5_priv *priv)
 {
-       int err = mlx5_alloc_table_hash_list(priv);
+       struct mlx5_ibv_shared *sh = priv->sh;
+       char s[MLX5_HLIST_NAMESIZE];
+       int err = 0;
 
+       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
-       struct mlx5_ibv_shared *sh = priv->sh;
-       char s[MLX5_HLIST_NAMESIZE];
        void *domain;
 
        if (sh->dv_refcnt) {
@@ -911,20 +930,13 @@ mlx5_alloc_shared_dr(struct mlx5_priv *priv)
                sh->esw_drop_action = mlx5_glue->dr_create_flow_action_drop();
        }
 #endif
-       /* create tags hash list table. */
-       snprintf(s, sizeof(s), "%s_tags", priv->sh->ibdev_name);
-       sh->tag_table = mlx5_hlist_create(s, MLX5_TAGS_HLIST_ARRAY_SIZE);
-       if (!sh->flow_tbls) {
-               DRV_LOG(ERR, "tags with hash creation failed.\n");
-               goto error;
-       }
        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. */
+       /* Rollback the created objects. */
        if (sh->rx_domain) {
                mlx5_glue->dr_destroy_domain(sh->rx_domain);
                sh->rx_domain = NULL;
@@ -945,8 +957,12 @@ error:
                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);
-#endif
        return err;
 }
 
@@ -959,7 +975,6 @@ error:
 static void
 mlx5_free_shared_dr(struct mlx5_priv *priv)
 {
-#ifdef HAVE_MLX5DV_DR
        struct mlx5_ibv_shared *sh;
 
        if (!priv->dr_shared)
@@ -967,6 +982,7 @@ mlx5_free_shared_dr(struct mlx5_priv *priv)
        priv->dr_shared = 0;
        sh = priv->sh;
        assert(sh);
+#ifdef HAVE_MLX5DV_DR
        assert(sh->dv_refcnt);
        if (sh->dv_refcnt && --sh->dv_refcnt)
                return;
@@ -988,17 +1004,17 @@ mlx5_free_shared_dr(struct mlx5_priv *priv)
                sh->esw_drop_action = NULL;
        }
 #endif
-       if (sh->tag_table) {
-               /* tags should be destroyed with flow before. */
-               mlx5_hlist_destroy(sh->tag_table, NULL, NULL);
-               sh->tag_table = NULL;
-       }
        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);
 }
 
@@ -1505,7 +1521,15 @@ mlx5_args_check(const char *key, const char *val, void *opaque)
        } else if (strcmp(MLX5_TXQ_MPW_EN, key) == 0) {
                config->mps = !!tmp;
        } else if (strcmp(MLX5_TX_DB_NC, key) == 0) {
-               config->dbnc = !!tmp;
+               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) {
@@ -1528,8 +1552,8 @@ mlx5_args_check(const char *key, const char *val, void *opaque)
                if (tmp != MLX5_XMETA_MODE_LEGACY &&
                    tmp != MLX5_XMETA_MODE_META16 &&
                    tmp != MLX5_XMETA_MODE_META32) {
-                       DRV_LOG(WARNING, "invalid extensive "
-                                        "metadata parameter");
+                       DRV_LOG(ERR, "invalid extensive "
+                                    "metadata parameter");
                        rte_errno = EINVAL;
                        return -rte_errno;
                }
@@ -2242,7 +2266,9 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,
                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));
+                             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 ");
@@ -2414,7 +2440,7 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,
        !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
        DRV_LOG(DEBUG, "counters are not supported");
 #endif
-#ifndef HAVE_IBV_FLOW_DV_SUPPORT
+#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;
@@ -2465,7 +2491,8 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,
        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_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");
@@ -2526,6 +2553,8 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,
                                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);
                        }
@@ -2658,7 +2687,12 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,
                err = mlx5_alloc_shared_dr(priv);
                if (err)
                        goto error;
-               priv->qrss_id_pool = mlx5_flow_id_pool_alloc();
+               /*
+                * 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;
@@ -2932,6 +2966,8 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
        struct mlx5_dev_config dev_config;
        int ret;
 
+       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",
@@ -3262,6 +3298,7 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
                        .min_rxqs_num = MLX5_MPRQ_MIN_RXQS,
                },
                .dv_esw_en = 1,
+               .dv_flow_en = 1,
        };
        /* Device specific configuration. */
        switch (pci_dev->id.device_id) {
@@ -3467,138 +3504,6 @@ static struct rte_pci_driver mlx5_driver = {
                     RTE_PCI_DRV_PROBE_AGAIN,
 };
 
-#ifdef RTE_IBVERBS_LINK_DLOPEN
-
-/**
- * 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.
  */
@@ -3613,43 +3518,8 @@ RTE_INIT(rte_mlx5_pmd_init)
        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);
-       /*
-        * MLX5_DEVICE_FATAL_CLEANUP tells ibv_destroy functions to
-        * cleanup all the Verbs resources even when the device was removed.
-        */
-       setenv("MLX5_DEVICE_FATAL_CLEANUP", "1", 1);
-#ifdef RTE_IBVERBS_LINK_DLOPEN
-       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);
+       if (mlx5_glue)
+               rte_pci_register(&mlx5_driver);
 }
 
 RTE_PMD_EXPORT_NAME(net_mlx5, __COUNTER__);