[dpdk-dev] [PATCH] common/cnxk: dump hardware flow MCAM entry data

[psatheesh]

From: Satheesh Paul <psathe...@marvell.com>

When dumping flow data, read hardware MCAM entry corresponding
to the flow and print that data also.

Signed-off-by: Satheesh Paul <psathe...@marvell.com>
Reviewed-by: Kiran Kumar Kokkilagadda <kirankum...@marvell.com>
---
 drivers/common/cnxk/roc_npc_mcam_dump.c | 26 ++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/drivers/common/cnxk/roc_npc_mcam_dump.c 
b/drivers/common/cnxk/roc_npc_mcam_dump.c
index 679e3d7657..2aaf3ccd0b 100644
--- a/drivers/common/cnxk/roc_npc_mcam_dump.c
+++ b/drivers/common/cnxk/roc_npc_mcam_dump.c
@@ -586,8 +586,10 @@ roc_npc_flow_mcam_dump(FILE *file, struct roc_npc *roc_npc,
                       struct roc_npc_flow *flow)
 {
        struct npc *npc = roc_npc_to_npc_priv(roc_npc);
+       struct npc_mcam_read_entry_req *mcam_read_req;
+       struct npc_mcam_read_entry_rsp *mcam_read_rsp;
        bool is_rx = 0;
-       int i;
+       int i, rc = 0;
 
        fprintf(file, "MCAM Index:%d\n", flow->mcam_id);
        fprintf(file, "Interface :%s (%d)\n", intf_str[flow->nix_intf],
@@ -609,5 +611,27 @@ roc_npc_flow_mcam_dump(FILE *file, struct roc_npc *roc_npc,
                fprintf(file, "\tDW%d_Mask:%016lX\n", i, flow->mcam_mask[i]);
        }
 
+       mcam_read_req = mbox_alloc_msg_npc_mcam_read_entry(npc->mbox);
+       if (mcam_read_req == NULL) {
+               plt_err("Failed to alloc msg");
+               return;
+       }
+
+       mcam_read_req->entry = flow->mcam_id;
+       rc = mbox_process_msg(npc->mbox, (void *)&mcam_read_rsp);
+       if (rc) {
+               plt_err("Failed to fetch MCAM entry");
+               return;
+       }
+
+       fprintf(file, "HW MCAM Data :\n");
+
+       for (i = 0; i < ROC_NPC_MAX_MCAM_WIDTH_DWORDS; i++) {
+               fprintf(file, "\tDW%d     :%016lX\n", i,
+                       mcam_read_rsp->entry_data.kw[i]);
+               fprintf(file, "\tDW%d_Mask:%016lX\n", i,
+                       mcam_read_rsp->entry_data.kw_mask[i]);
+       }
+
        fprintf(file, "\n");
 }
-- 
2.25.4