[v11,3/3] net/cnxk: skip red drop for ingress policer
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Commit Message
Dropping of packets is based on action configured
to meter.If both skip_red and drop actions are configured
then tail dropping in invoked else if only drop action is
configured then RED drop is invoked.This action is supported
only when RED is configured using rte_eth_cman_config_set()
Signed-off-by: Rakesh Kudurumalla <rkudurumalla@marvell.com>
Acked-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
---
doc/guides/nics/features/cnxk.ini | 1 +
doc/guides/nics/features/cnxk_vf.ini | 1 +
doc/guides/rel_notes/release_23_03.rst | 5 +++
drivers/net/cnxk/cnxk_ethdev.h | 1 +
drivers/net/cnxk/cnxk_ethdev_mtr.c | 50 ++++++++++++++++++++++++++
5 files changed, 58 insertions(+)
@@ -94,4 +94,5 @@ queue = Y
represented_port = Y
rss = Y
security = Y
+skip_cman = Y
vf = Y
@@ -83,4 +83,5 @@ pf = Y
queue = Y
rss = Y
security = Y
+skip_cman = Y
vf = Y
@@ -117,6 +117,11 @@ New Features
* Added support for meter options.
* Added support for rte_flow meter action.
+* **Updated Marvell cnxk ethdev PMD.**
+
+ * Added support to skip RED using new action
+ ``RTE_FLOW_ACTION_TYPE_SKIP_CMAN``
+
* **Updated NVIDIA mlx5 driver.**
* Added support for matching on ICMPv6 ID and sequence fields.
@@ -168,6 +168,7 @@ struct policy_actions {
uint16_t queue;
uint32_t mtr_id;
struct action_rss *rss_desc;
+ bool skip_red;
};
};
@@ -358,6 +358,9 @@ cnxk_nix_mtr_policy_validate(struct rte_eth_dev *dev,
if (action->type == RTE_FLOW_ACTION_TYPE_VOID)
supported[i] = true;
+ if (action->type == RTE_FLOW_ACTION_TYPE_SKIP_CMAN)
+ supported[i] = true;
+
if (!supported[i])
return update_mtr_err(i, error, true);
}
@@ -397,6 +400,10 @@ cnxk_fill_policy_actions(struct cnxk_mtr_policy_node *fmp,
fmp->actions[i].action_fate =
action->type;
}
+
+ if (action->type ==
+ RTE_FLOW_ACTION_TYPE_SKIP_CMAN)
+ fmp->actions[i].skip_red = true;
}
}
}
@@ -1306,6 +1313,45 @@ nix_mtr_config_map(struct cnxk_meter_node *mtr, struct roc_nix_bpf_cfg *cfg)
cfg->action[ROC_NIX_BPF_COLOR_RED] = ROC_NIX_BPF_ACTION_DROP;
}
+static void
+nix_mtr_config_red(struct cnxk_meter_node *mtr, struct roc_nix_rq *rq,
+ struct roc_nix_bpf_cfg *cfg)
+{
+ struct cnxk_mtr_policy_node *policy = mtr->policy;
+
+ if ((rq->red_pass && rq->red_pass >= rq->red_drop) ||
+ (rq->spb_red_pass && rq->spb_red_pass >= rq->spb_red_drop) ||
+ (rq->xqe_red_pass && rq->xqe_red_pass >= rq->xqe_red_drop)) {
+ if (policy->actions[RTE_COLOR_GREEN].action_fate ==
+ RTE_FLOW_ACTION_TYPE_DROP) {
+ if (policy->actions[RTE_COLOR_GREEN].skip_red)
+ cfg->action[ROC_NIX_BPF_COLOR_GREEN] =
+ ROC_NIX_BPF_ACTION_DROP;
+ else
+ cfg->action[ROC_NIX_BPF_COLOR_GREEN] =
+ ROC_NIX_BPF_ACTION_RED;
+ }
+ if (policy->actions[RTE_COLOR_YELLOW].action_fate ==
+ RTE_FLOW_ACTION_TYPE_DROP) {
+ if (policy->actions[RTE_COLOR_YELLOW].skip_red)
+ cfg->action[ROC_NIX_BPF_COLOR_YELLOW] =
+ ROC_NIX_BPF_ACTION_DROP;
+ else
+ cfg->action[ROC_NIX_BPF_COLOR_YELLOW] =
+ ROC_NIX_BPF_ACTION_RED;
+ }
+ if (policy->actions[RTE_COLOR_RED].action_fate ==
+ RTE_FLOW_ACTION_TYPE_DROP) {
+ if (policy->actions[RTE_COLOR_RED].skip_red)
+ cfg->action[ROC_NIX_BPF_COLOR_RED] =
+ ROC_NIX_BPF_ACTION_DROP;
+ else
+ cfg->action[ROC_NIX_BPF_COLOR_RED] =
+ ROC_NIX_BPF_ACTION_RED;
+ }
+ }
+}
+
static void
nix_precolor_table_map(struct cnxk_meter_node *mtr,
struct roc_nix_bpf_precolor *tbl,
@@ -1483,6 +1529,10 @@ nix_mtr_configure(struct rte_eth_dev *eth_dev, uint32_t id)
if (!mtr[i]->is_used) {
memset(&cfg, 0, sizeof(struct roc_nix_bpf_cfg));
nix_mtr_config_map(mtr[i], &cfg);
+ for (j = 0; j < mtr[i]->rq_num; j++) {
+ rq = &dev->rqs[mtr[i]->rq_id[j]];
+ nix_mtr_config_red(mtr[i], rq, &cfg);
+ }
rc = roc_nix_bpf_config(nix, mtr[i]->bpf_id,
lvl_map[mtr[i]->level],
&cfg);