Adding representor ethernet statistics support which can fetch stats
for representees which are operating independently or part of
companian app.

Signed-off-by: Harman Kalra <hka...@marvell.com>
---
 drivers/net/cnxk/cnxk_rep_msg.h |   7 ++
 drivers/net/cnxk/cnxk_rep_ops.c | 140 +++++++++++++++++++++++++++++++-
 2 files changed, 143 insertions(+), 4 deletions(-)

diff --git a/drivers/net/cnxk/cnxk_rep_msg.h b/drivers/net/cnxk/cnxk_rep_msg.h
index 63cfbe3f19..277e25d92a 100644
--- a/drivers/net/cnxk/cnxk_rep_msg.h
+++ b/drivers/net/cnxk/cnxk_rep_msg.h
@@ -21,6 +21,8 @@ typedef enum CNXK_REP_MSG {
        CNXK_REP_MSG_EXIT,
        /* Ethernet operation msgs */
        CNXK_REP_MSG_ETH_SET_MAC,
+       CNXK_REP_MSG_ETH_STATS_GET,
+       CNXK_REP_MSG_ETH_STATS_CLEAR,
        /* End of messaging sequence */
        CNXK_REP_MSG_END,
 } cnxk_rep_msg_t;
@@ -89,6 +91,11 @@ typedef struct cnxk_rep_msg_eth_mac_set_meta {
        uint8_t addr_bytes[RTE_ETHER_ADDR_LEN];
 } __rte_packed cnxk_rep_msg_eth_set_mac_meta_t;
 
+/* Ethernet op - get/clear stats */
+typedef struct cnxk_rep_msg_eth_stats_meta {
+       uint16_t portid;
+} __rte_packed cnxk_rep_msg_eth_stats_meta_t;
+
 void cnxk_rep_msg_populate_command(void *buffer, uint32_t *length, 
cnxk_rep_msg_t type,
                                   uint32_t size);
 void cnxk_rep_msg_populate_command_meta(void *buffer, uint32_t *length, void 
*msg_meta, uint32_t sz,
diff --git a/drivers/net/cnxk/cnxk_rep_ops.c b/drivers/net/cnxk/cnxk_rep_ops.c
index 97643a50f2..6728b3e265 100644
--- a/drivers/net/cnxk/cnxk_rep_ops.c
+++ b/drivers/net/cnxk/cnxk_rep_ops.c
@@ -486,19 +486,151 @@ cnxk_rep_tx_queue_release(struct rte_eth_dev *ethdev, 
uint16_t queue_id)
                plt_err("Failed to release txq %d, rc=%d", rc, txq->qid);
 }
 
+static int
+process_eth_stats(struct cnxk_rep_dev *rep_dev, cnxk_rep_msg_ack_data_t 
*adata, cnxk_rep_msg_t msg)
+{
+       cnxk_rep_msg_eth_stats_meta_t msg_st_meta;
+       uint32_t len = 0, rc;
+       void *buffer;
+       size_t size;
+
+       size = CNXK_REP_MSG_MAX_BUFFER_SZ;
+       buffer = plt_zmalloc(size, 0);
+       if (!buffer) {
+               plt_err("Failed to allocate mem");
+               rc = -ENOMEM;
+               goto fail;
+       }
+
+       cnxk_rep_msg_populate_header(buffer, &len);
+
+       msg_st_meta.portid = rep_dev->rep_id;
+       cnxk_rep_msg_populate_command_meta(buffer, &len, &msg_st_meta,
+                                          
sizeof(cnxk_rep_msg_eth_stats_meta_t), msg);
+       cnxk_rep_msg_populate_msg_end(buffer, &len);
+
+       rc = cnxk_rep_msg_send_process(rep_dev, buffer, len, adata);
+       if (rc) {
+               plt_err("Failed to process the message, err %d", rc);
+               goto fail;
+       }
+
+       rte_free(buffer);
+
+       return 0;
+fail:
+       rte_free(buffer);
+       return rc;
+}
+
+static int
+native_repte_eth_stats(struct cnxk_rep_dev *rep_dev, struct rte_eth_stats 
*stats)
+{
+       struct roc_nix_stats nix_stats;
+       int rc = 0;
+
+       rc = roc_eswitch_nix_repte_stats(&rep_dev->parent_dev->nix, 
rep_dev->hw_func, &nix_stats);
+       if (rc) {
+               plt_err("Failed to get stats for representee %x, err %d", 
rep_dev->hw_func, rc);
+               goto fail;
+       }
+
+       memset(stats, 0, sizeof(struct rte_eth_stats));
+       stats->opackets = nix_stats.tx_ucast;
+       stats->opackets += nix_stats.tx_mcast;
+       stats->opackets += nix_stats.tx_bcast;
+       stats->oerrors = nix_stats.tx_drop;
+       stats->obytes = nix_stats.tx_octs;
+
+       stats->ipackets = nix_stats.rx_ucast;
+       stats->ipackets += nix_stats.rx_mcast;
+       stats->ipackets += nix_stats.rx_bcast;
+       stats->imissed = nix_stats.rx_drop;
+       stats->ibytes = nix_stats.rx_octs;
+       stats->ierrors = nix_stats.rx_err;
+
+       return 0;
+fail:
+       return rc;
+}
+
 int
 cnxk_rep_stats_get(struct rte_eth_dev *ethdev, struct rte_eth_stats *stats)
 {
-       PLT_SET_USED(ethdev);
-       PLT_SET_USED(stats);
+       struct cnxk_rep_dev *rep_dev = cnxk_rep_pmd_priv(ethdev);
+       struct rte_eth_stats vf_stats;
+       cnxk_rep_msg_ack_data_t adata;
+       int rc;
+
+       /* If representor not representing any active VF, return 0 */
+       if (!rep_dev->is_vf_active)
+               return 0;
+
+       if (rep_dev->native_repte) {
+               /* For representees which are independent */
+               rc = native_repte_eth_stats(rep_dev, &vf_stats);
+               if (rc) {
+                       plt_err("Failed to get stats for vf rep %x (hw_func 
%x), err %d",
+                               rep_dev->port_id, rep_dev->hw_func, rc);
+                       goto fail;
+               }
+       } else {
+               /* For representees which are part of companian app */
+               rc = process_eth_stats(rep_dev, &adata, 
CNXK_REP_MSG_ETH_STATS_GET);
+               if (rc || adata.u.sval < 0) {
+                       if (adata.u.sval < 0)
+                               rc = adata.u.sval;
+
+                       plt_err("Failed to get stats for vf rep %x, err %d", 
rep_dev->port_id, rc);
+               }
+
+               if (adata.size != sizeof(struct rte_eth_stats)) {
+                       rc = -EINVAL;
+                       plt_err("Incomplete stats received for vf rep %d", 
rep_dev->port_id);
+                       goto fail;
+               }
+
+               rte_memcpy(&vf_stats, adata.u.data, adata.size);
+       }
+
+       stats->q_ipackets[0] = vf_stats.ipackets;
+       stats->q_ibytes[0] = vf_stats.ibytes;
+       stats->ipackets = vf_stats.ipackets;
+       stats->ibytes = vf_stats.ibytes;
+
+       stats->q_opackets[0] = vf_stats.opackets;
+       stats->q_obytes[0] = vf_stats.obytes;
+       stats->opackets = vf_stats.opackets;
+       stats->obytes = vf_stats.obytes;
+
+       plt_rep_dbg("Input packets %" PRId64 " Output packets %" PRId64 "", 
stats->ipackets,
+                   stats->opackets);
+
        return 0;
+fail:
+       return rc;
 }
 
 int
 cnxk_rep_stats_reset(struct rte_eth_dev *ethdev)
 {
-       PLT_SET_USED(ethdev);
-       return 0;
+       struct cnxk_rep_dev *rep_dev = cnxk_rep_pmd_priv(ethdev);
+       cnxk_rep_msg_ack_data_t adata;
+       int rc = 0;
+
+       /* If representor not representing any active VF, return 0 */
+       if (!rep_dev->is_vf_active)
+               return 0;
+
+       rc = process_eth_stats(rep_dev, &adata, CNXK_REP_MSG_ETH_STATS_CLEAR);
+       if (rc || adata.u.sval < 0) {
+               if (adata.u.sval < 0)
+                       rc = adata.u.sval;
+
+               plt_err("Failed to clear stats for vf rep %x, err %d", 
rep_dev->port_id, rc);
+       }
+
+       return rc;
 }
 
 int
-- 
2.18.0

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