net/cnxk: support to update precolor DSCP table

Implement API to update DSCP table for pre-coloring for
incoming packet per nixlf for CNXK platform.

Signed-off-by: Sunil Kumar Kori <skori@marvell.com>
Signed-off-by: Rakesh Kudurumalla <rkudurumalla@marvell.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>

diff --git a/drivers/net/cnxk/cnxk_ethdev_mtr.c b/drivers/net/cnxk/cnxk_ethdev_mtr.c
index 6c19b90..d14de95 100644 (file)
--- a/drivers/net/cnxk/cnxk_ethdev_mtr.c
+++ b/drivers/net/cnxk/cnxk_ethdev_mtr.c
@@ -613,6 +613,56 @@ cnxk_nix_mtr_disable(struct rte_eth_dev *eth_dev, uint32_t mtr_id,
        return rc;
 }
 
+static int
+cnxk_nix_mtr_dscp_table_update(struct rte_eth_dev *eth_dev, uint32_t mtr_id,
+                              enum rte_color *dscp_table,
+                              struct rte_mtr_error *error)
+{
+       enum roc_nix_bpf_color nix_dscp_tbl[ROC_NIX_BPF_PRE_COLOR_MAX];
+       enum roc_nix_bpf_color color_map[] = {ROC_NIX_BPF_COLOR_GREEN,
+                                             ROC_NIX_BPF_COLOR_YELLOW,
+                                             ROC_NIX_BPF_COLOR_RED};
+       struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
+       struct roc_nix_bpf_precolor table;
+       struct roc_nix *nix = &dev->nix;
+       struct cnxk_meter_node *mtr;
+       int rc, i;
+
+       mtr = nix_mtr_find(dev, mtr_id);
+       if (mtr == NULL) {
+               return -rte_mtr_error_set(error, ENOENT,
+                                         RTE_MTR_ERROR_TYPE_MTR_ID, NULL,
+                                         "Meter object not found");
+       }
+
+       if (!dscp_table) {
+               for (i = 0; i < ROC_NIX_BPF_PRE_COLOR_MAX; i++)
+                       nix_dscp_tbl[i] = ROC_NIX_BPF_COLOR_GREEN;
+       } else {
+               for (i = 0; i < ROC_NIX_BPF_PRE_COLOR_MAX; i++)
+                       nix_dscp_tbl[i] = color_map[dscp_table[i]];
+       }
+
+       table.count = ROC_NIX_BPF_PRE_COLOR_MAX;
+       table.mode = ROC_NIX_BPF_PC_MODE_DSCP_OUTER;
+       for (i = 0; i < ROC_NIX_BPF_PRE_COLOR_MAX; i++)
+               table.color[i] = nix_dscp_tbl[i];
+
+       rc = roc_nix_bpf_pre_color_tbl_setup(nix, mtr->bpf_id,
+                                            lvl_map[mtr->level], &table);
+       if (rc) {
+               rte_mtr_error_set(error, rc, RTE_MTR_ERROR_TYPE_UNSPECIFIED,
+                                 NULL, NULL);
+               goto exit;
+       }
+
+       for (i = 0; i < ROC_NIX_BPF_PRE_COLOR_MAX; i++)
+               dev->precolor_tbl[i] = nix_dscp_tbl[i];
+
+exit:
+       return rc;
+}
+
 const struct rte_mtr_ops nix_mtr_ops = {
        .capabilities_get = cnxk_nix_mtr_capabilities_get,
        .meter_profile_add = cnxk_nix_mtr_profile_add,
@@ -624,6 +674,7 @@ const struct rte_mtr_ops nix_mtr_ops = {
        .destroy = cnxk_nix_mtr_destroy,
        .meter_enable = cnxk_nix_mtr_enable,
        .meter_disable = cnxk_nix_mtr_disable,
+       .meter_dscp_table_update = cnxk_nix_mtr_dscp_table_update,
 };
 
 int