common/cnxk: add handlers to get TM hierarchy internals

Platform specific TM tree hierarchy details are part of common cnxk
driver. This patch introduces missing HAL APIs to return state of
TM hierarchy required to support ethdev TM operations inside cnxk PMD.

Signed-off-by: Satha Rao <skoteshwar@marvell.com>
Acked-by: Nithin Dabilpuram <ndabilpuram@marvell.com>

diff --git a/drivers/common/cnxk/roc_nix.h b/drivers/common/cnxk/roc_nix.h
index 90dc413..d9a4613 100644 (file)
--- a/drivers/common/cnxk/roc_nix.h
+++ b/drivers/common/cnxk/roc_nix.h
@@ -490,6 +490,16 @@ int __roc_api roc_nix_tm_node_name_get(struct roc_nix *roc_nix,
                                       uint32_t node_id, char *buf,
                                       size_t buflen);
 int __roc_api roc_nix_smq_flush(struct roc_nix *roc_nix);
+int __roc_api roc_nix_tm_max_prio(struct roc_nix *roc_nix, int lvl);
+int __roc_api roc_nix_tm_lvl_is_leaf(struct roc_nix *roc_nix, int lvl);
+void __roc_api
+roc_nix_tm_shaper_default_red_algo(struct roc_nix_tm_node *node,
+                                  struct roc_nix_tm_shaper_profile *profile);
+int __roc_api roc_nix_tm_lvl_cnt_get(struct roc_nix *roc_nix);
+int __roc_api roc_nix_tm_lvl_have_link_access(struct roc_nix *roc_nix, int lvl);
+int __roc_api roc_nix_tm_prepare_rate_limited_tree(struct roc_nix *roc_nix);
+bool __roc_api roc_nix_tm_is_user_hierarchy_enabled(struct roc_nix *nix);
+int __roc_api roc_nix_tm_tree_type_get(struct roc_nix *nix);
 
 /* MAC */
 int __roc_api roc_nix_mac_rxtx_start_stop(struct roc_nix *roc_nix, bool start);

diff --git a/drivers/common/cnxk/roc_nix_priv.h b/drivers/common/cnxk/roc_nix_priv.h
index 3412bf2..b67f648 100644 (file)
--- a/drivers/common/cnxk/roc_nix_priv.h
+++ b/drivers/common/cnxk/roc_nix_priv.h
@@ -350,7 +350,6 @@ int nix_tm_txsch_reg_config(struct nix *nix, enum roc_nix_tm_tree tree);
 int nix_tm_update_parent_info(struct nix *nix, enum roc_nix_tm_tree tree);
 int nix_tm_sq_sched_conf(struct nix *nix, struct nix_tm_node *node,
                         bool rr_quantum_only);
-int nix_tm_prepare_rate_limited_tree(struct roc_nix *roc_nix);
 
 /*
  * TM priv utils.

diff --git a/drivers/common/cnxk/roc_nix_tm.c b/drivers/common/cnxk/roc_nix_tm.c
index 947320a..08d6e86 100644 (file)
--- a/drivers/common/cnxk/roc_nix_tm.c
+++ b/drivers/common/cnxk/roc_nix_tm.c
@@ -155,6 +155,20 @@ nix_tm_update_parent_info(struct nix *nix, enum roc_nix_tm_tree tree)
        return 0;
 }
 
+static int
+nix_tm_root_node_get(struct nix *nix, int tree)
+{
+       struct nix_tm_node_list *list = nix_tm_node_list(nix, tree);
+       struct nix_tm_node *tm_node;
+
+       TAILQ_FOREACH(tm_node, list, node) {
+               if (tm_node->hw_lvl == nix->tm_root_lvl)
+                       return 1;
+       }
+
+       return 0;
+}
+
 int
 nix_tm_node_add(struct roc_nix *roc_nix, struct nix_tm_node *node)
 {
@@ -207,6 +221,10 @@ nix_tm_node_add(struct roc_nix *roc_nix, struct nix_tm_node *node)
        if (nix_tm_node_search(nix, node_id, tree))
                return NIX_ERR_TM_NODE_EXISTS;
 
+       /* Check if root node exists */
+       if (hw_lvl == nix->tm_root_lvl && nix_tm_root_node_get(nix, tree))
+               return NIX_ERR_TM_NODE_EXISTS;
+
        profile = nix_tm_shaper_profile_search(nix, profile_id);
        if (!nix_tm_is_leaf(nix, lvl)) {
                /* Check if shaper profile exists for non leaf node */
@@ -1157,7 +1175,7 @@ error:
 }
 
 int
-nix_tm_prepare_rate_limited_tree(struct roc_nix *roc_nix)
+roc_nix_tm_prepare_rate_limited_tree(struct roc_nix *roc_nix)
 {
        struct nix *nix = roc_nix_to_nix_priv(roc_nix);
        uint32_t nonleaf_id = nix->nb_tx_queues;
@@ -1227,7 +1245,7 @@ nix_tm_prepare_rate_limited_tree(struct roc_nix *roc_nix)
                        goto error;
 
                node->id = i;
-               node->parent_id = parent;
+               node->parent_id = parent + i;
                node->priority = 0;
                node->weight = NIX_TM_DFLT_RR_WT;
                node->shaper_profile_id = ROC_NIX_TM_SHAPER_PROFILE_NONE;

diff --git a/drivers/common/cnxk/roc_nix_tm_ops.c b/drivers/common/cnxk/roc_nix_tm_ops.c
index f956f8d..eee80d5 100644 (file)
--- a/drivers/common/cnxk/roc_nix_tm_ops.c
+++ b/drivers/common/cnxk/roc_nix_tm_ops.c
@@ -934,13 +934,6 @@ roc_nix_tm_init(struct roc_nix *roc_nix)
                return rc;
        }
 
-       /* Prepare rlimit tree */
-       rc = nix_tm_prepare_rate_limited_tree(roc_nix);
-       if (rc) {
-               plt_err("failed to prepare rlimit tm tree, rc=%d", rc);
-               return rc;
-       }
-
        return rc;
 }
 
@@ -958,11 +951,11 @@ roc_nix_tm_rlimit_sq(struct roc_nix *roc_nix, uint16_t qid, uint64_t rate)
        uint8_t k = 0;
        int rc;
 
-       if (nix->tm_tree != ROC_NIX_TM_RLIMIT ||
+       if ((nix->tm_tree == ROC_NIX_TM_USER) ||
            !(nix->tm_flags & NIX_TM_HIERARCHY_ENA))
                return NIX_ERR_TM_INVALID_TREE;
 
-       node = nix_tm_node_search(nix, qid, ROC_NIX_TM_RLIMIT);
+       node = nix_tm_node_search(nix, qid, nix->tm_tree);
 
        /* check if we found a valid leaf node */
        if (!node || !nix_tm_is_leaf(nix, node->lvl) || !node->parent ||

diff --git a/drivers/common/cnxk/roc_nix_tm_utils.c b/drivers/common/cnxk/roc_nix_tm_utils.c
index 8330624..a135454 100644 (file)
--- a/drivers/common/cnxk/roc_nix_tm_utils.c
+++ b/drivers/common/cnxk/roc_nix_tm_utils.c
@@ -235,6 +235,9 @@ nix_tm_shaper_conf_get(struct nix_tm_shaper_profile *profile,
                       struct nix_tm_shaper_data *cir,
                       struct nix_tm_shaper_data *pir)
 {
+       memset(cir, 0, sizeof(*cir));
+       memset(pir, 0, sizeof(*pir));
+
        if (!profile)
                return;
 
@@ -624,8 +627,6 @@ nix_tm_shaper_reg_prep(struct nix_tm_node *node,
        uint64_t adjust = 0;
        uint8_t k = 0;
 
-       memset(&cir, 0, sizeof(cir));
-       memset(&pir, 0, sizeof(pir));
        nix_tm_shaper_conf_get(profile, &cir, &pir);
 
        if (profile && node->pkt_mode)
@@ -1043,15 +1044,16 @@ roc_nix_tm_node_stats_get(struct roc_nix *roc_nix, uint32_t node_id, bool clear,
        if (node->hw_lvl != NIX_TXSCH_LVL_TL1)
                return NIX_ERR_OP_NOTSUP;
 
+       /* Check if node has HW resource */
+       if (!(node->flags & NIX_TM_NODE_HWRES))
+               return 0;
+
        schq = node->hw_id;
        /* Skip fetch if not requested */
        if (!n_stats)
                goto clear_stats;
 
        memset(n_stats, 0, sizeof(struct roc_nix_tm_node_stats));
-       /* Check if node has HW resource */
-       if (!(node->flags & NIX_TM_NODE_HWRES))
-               return 0;
 
        req = mbox_alloc_msg_nix_txschq_cfg(mbox);
        req->read = 1;
@@ -1102,3 +1104,77 @@ clear_stats:
 
        return mbox_process_msg(mbox, (void **)&rsp);
 }
+
+bool
+roc_nix_tm_is_user_hierarchy_enabled(struct roc_nix *roc_nix)
+{
+       struct nix *nix = roc_nix_to_nix_priv(roc_nix);
+
+       if ((nix->tm_flags & NIX_TM_HIERARCHY_ENA) &&
+           (nix->tm_tree == ROC_NIX_TM_USER))
+               return true;
+       return false;
+}
+
+int
+roc_nix_tm_tree_type_get(struct roc_nix *roc_nix)
+{
+       struct nix *nix = roc_nix_to_nix_priv(roc_nix);
+
+       return nix->tm_tree;
+}
+
+int
+roc_nix_tm_max_prio(struct roc_nix *roc_nix, int lvl)
+{
+       struct nix *nix = roc_nix_to_nix_priv(roc_nix);
+       int hw_lvl = nix_tm_lvl2nix(nix, lvl);
+
+       return nix_tm_max_prio(nix, hw_lvl);
+}
+
+int
+roc_nix_tm_lvl_is_leaf(struct roc_nix *roc_nix, int lvl)
+{
+       return nix_tm_is_leaf(roc_nix_to_nix_priv(roc_nix), lvl);
+}
+
+void
+roc_nix_tm_shaper_default_red_algo(struct roc_nix_tm_node *node,
+                                  struct roc_nix_tm_shaper_profile *roc_prof)
+{
+       struct nix_tm_node *tm_node = (struct nix_tm_node *)node;
+       struct nix_tm_shaper_profile *profile;
+       struct nix_tm_shaper_data cir, pir;
+
+       profile = (struct nix_tm_shaper_profile *)roc_prof->reserved;
+       tm_node->red_algo = NIX_REDALG_STD;
+
+       /* C0 doesn't support STALL when both PIR & CIR are enabled */
+       if (profile && roc_model_is_cn96_cx()) {
+               nix_tm_shaper_conf_get(profile, &cir, &pir);
+
+               if (pir.rate && cir.rate)
+                       tm_node->red_algo = NIX_REDALG_DISCARD;
+       }
+}
+
+int
+roc_nix_tm_lvl_cnt_get(struct roc_nix *roc_nix)
+{
+       if (nix_tm_have_tl1_access(roc_nix_to_nix_priv(roc_nix)))
+               return NIX_TXSCH_LVL_CNT;
+
+       return (NIX_TXSCH_LVL_CNT - 1);
+}
+
+int
+roc_nix_tm_lvl_have_link_access(struct roc_nix *roc_nix, int lvl)
+{
+       struct nix *nix = roc_nix_to_nix_priv(roc_nix);
+
+       if (nix_tm_lvl2nix(nix, lvl) == NIX_TXSCH_LVL_TL1)
+               return 1;
+
+       return 0;
+}

diff --git a/drivers/common/cnxk/version.map b/drivers/common/cnxk/version.map
index 776cabb..9b7cbf6 100644 (file)
--- a/drivers/common/cnxk/version.map
+++ b/drivers/common/cnxk/version.map
@@ -175,10 +175,16 @@ INTERNAL {
        roc_nix_tm_err_to_rte_err;
        roc_nix_tm_fini;
        roc_nix_tm_free_resources;
+       roc_nix_tm_lvl_cnt_get;
+       roc_nix_tm_tree_type_get;
        roc_nix_tm_hierarchy_disable;
        roc_nix_tm_hierarchy_enable;
        roc_nix_tm_init;
+       roc_nix_tm_is_user_hierarchy_enabled;
        roc_nix_tm_leaf_cnt;
+       roc_nix_tm_lvl_have_link_access;
+       roc_nix_tm_lvl_is_leaf;
+       roc_nix_tm_max_prio;
        roc_nix_tm_node_add;
        roc_nix_tm_node_delete;
        roc_nix_tm_node_get;
@@ -191,10 +197,12 @@ INTERNAL {
        roc_nix_tm_node_stats_get;
        roc_nix_tm_node_suspend_resume;
        roc_nix_tm_prealloc_res;
+       roc_nix_tm_prepare_rate_limited_tree;
        roc_nix_tm_rlimit_sq;
        roc_nix_tm_root_has_sp;
        roc_nix_tm_rsrc_count;
        roc_nix_tm_rsrc_max;
+       roc_nix_tm_shaper_default_red_algo;
        roc_nix_tm_shaper_profile_add;
        roc_nix_tm_shaper_profile_delete;
        roc_nix_tm_shaper_profile_get;