Reviewed-by: Michael Shamis <michae...@marvell.com>

-----Original Message-----
From: dev <dev-boun...@dpdk.org> On Behalf Of lir...@marvell.com
Sent: Wednesday, December 2, 2020 12:12 PM
To: Jerin Jacob Kollanukkaran <jer...@marvell.com>
Cc: dev@dpdk.org; Dana Vardi <da...@marvell.com>; Liron Himi 
<lir...@marvell.com>
Subject: [dpdk-dev] [PATCH v1 36/38] net/mvpp2: forward bad packets support

From: Dana Vardi <da...@marvell.com>

extend the config file with option to forward packets that were marked as "l2 
bad pkts".
by default the driver drop those packets

Signed-off-by: Dana Vardi <da...@marvell.com>
Reviewed-by: Liron Himi <lir...@marvell.com>
---
 drivers/net/mvpp2/mrvl_ethdev.c | 10 ++++++++--  
drivers/net/mvpp2/mrvl_ethdev.h |  2 ++
 drivers/net/mvpp2/mrvl_qos.c    | 17 +++++++++++++++++
 drivers/net/mvpp2/mrvl_qos.h    |  1 +
 4 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/drivers/net/mvpp2/mrvl_ethdev.c b/drivers/net/mvpp2/mrvl_ethdev.c 
index cb792300b..4b5c4f075 100644
--- a/drivers/net/mvpp2/mrvl_ethdev.c
+++ b/drivers/net/mvpp2/mrvl_ethdev.c
@@ -798,9 +798,14 @@ mrvl_dev_start(struct rte_eth_dev *dev)
                 priv->pp_id, priv->ppio_id);
        priv->ppio_params.match = match;
        priv->ppio_params.eth_start_hdr = PP2_PPIO_HDR_ETH;
-       if (mrvl_cfg)
+       priv->forward_bad_frames = 0;
+
+       if (mrvl_cfg) {
                priv->ppio_params.eth_start_hdr =
                        mrvl_cfg->port[dev->data->port_id].eth_start_hdr;
+               priv->forward_bad_frames =
+                       mrvl_cfg->port[dev->data->port_id].forward_bad_frames;
+       }
 
        /*
         * Calculate the minimum bpool size for refill feature as follows:
@@ -2709,7 +2714,8 @@ mrvl_rx_pkt_burst(void *rxq, struct rte_mbuf **rx_pkts, 
uint16_t nb_pkts)
 
                /* drop packet in case of mac, overrun or resource error */
                status = pp2_ppio_inq_desc_get_l2_pkt_error(&descs[i]);
-               if (unlikely(status != PP2_DESC_ERR_OK)) {
+               if ((unlikely(status != PP2_DESC_ERR_OK)) &&
+                       !(q->priv->forward_bad_frames)) {
                        struct pp2_buff_inf binf = {
                                .addr = rte_mbuf_data_iova_default(mbuf),
                                .cookie = (uint64_t)mbuf,
diff --git a/drivers/net/mvpp2/mrvl_ethdev.h b/drivers/net/mvpp2/mrvl_ethdev.h 
index 148f2acba..2c1c159b9 100644
--- a/drivers/net/mvpp2/mrvl_ethdev.h
+++ b/drivers/net/mvpp2/mrvl_ethdev.h
@@ -182,6 +182,8 @@ struct mrvl_priv {
        LIST_HEAD(shaper_profiles, mrvl_tm_shaper_profile) shaper_profiles;
        LIST_HEAD(nodes, mrvl_tm_node) nodes;
        uint64_t rate_max;
+
+       uint8_t forward_bad_frames;
 };
 
 /** Flow operations forward declaration. */ diff --git 
a/drivers/net/mvpp2/mrvl_qos.c b/drivers/net/mvpp2/mrvl_qos.c index 
10e8636b4..f3936aec4 100644
--- a/drivers/net/mvpp2/mrvl_qos.c
+++ b/drivers/net/mvpp2/mrvl_qos.c
@@ -76,6 +76,8 @@
 #define MRVL_TOK_PARSER_UDF_PROTO_UDP "udp"
 #define MRVL_TOK_PARSER_UDF_FIELD_UDP_DPORT "dport"
 
+/* paser forward bad frames tokens */
+#define MRVL_TOK_FWD_BAD_FRAMES "forward_bad_frames"
 
 /** Number of tokens in range a-b = 2. */  #define MAX_RNG_TOKENS 2 @@ -872,6 
+874,21 @@ mrvl_get_cfg(const char *key __rte_unused, const char *path, void 
*extra_args)
                                return -1;
                        }
                }
+
+               /* Parse forward bad frames option */
+               entry = rte_cfgfile_get_entry(file, sec_name,
+                               MRVL_TOK_FWD_BAD_FRAMES);
+               if (entry) {
+                       if (get_val_securely(entry, &val) < 0) {
+                               MRVL_LOG(ERR,
+                                       "Error in parsing %s value (%s)!\n",
+                                       MRVL_TOK_FWD_BAD_FRAMES, entry);
+                               return -1;
+                       }
+                       (*cfg)->port[n].forward_bad_frames = (uint8_t)val;
+               } else {
+                       (*cfg)->port[n].forward_bad_frames = 0;
+               }
        }
 
        return 0;
diff --git a/drivers/net/mvpp2/mrvl_qos.h b/drivers/net/mvpp2/mrvl_qos.h index 
daf4776ec..f2e341c37 100644
--- a/drivers/net/mvpp2/mrvl_qos.h
+++ b/drivers/net/mvpp2/mrvl_qos.h
@@ -48,6 +48,7 @@ struct mrvl_cfg {
                uint8_t use_global_defaults;
                struct pp2_cls_plcr_params policer_params;
                uint8_t setup_policer;
+               uint8_t forward_bad_frames;
        } port[RTE_MAX_ETHPORTS];
 };
 
--
2.28.0

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