[PATCH net-next 09/11] bnxt_en: Add a software counter for RX ring reset.

[Michael Chan]

Add a per ring rx_resets counter to count these RX resets.

Signed-off-by: Michael Chan <michael.c...@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c         | 14 ++++++++++----
 drivers/net/ethernet/broadcom/bnxt/bnxt.h         |  1 +
 drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c |  1 +
 3 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c 
b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 31877fb4ddd9..084588436b66 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -8770,14 +8770,19 @@ static void bnxt_enable_napi(struct bnxt *bp)
        int i;
 
        for (i = 0; i < bp->cp_nr_rings; i++) {
-               struct bnxt_cp_ring_info *cpr = &bp->bnapi[i]->cp_ring;
-               bp->bnapi[i]->in_reset = false;
+               struct bnxt_napi *bnapi = bp->bnapi[i];
+               struct bnxt_cp_ring_info *cpr;
+
+               cpr = &bnapi->cp_ring;
+               if (bnapi->in_reset)
+                       cpr->sw_stats.rx.rx_resets++;
+               bnapi->in_reset = false;
 
-               if (bp->bnapi[i]->rx_ring) {
+               if (bnapi->rx_ring) {
                        INIT_WORK(&cpr->dim.work, bnxt_dim_work);
                        cpr->dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_EQE;
                }
-               napi_enable(&bp->bnapi[i]->napi);
+               napi_enable(&bnapi->napi);
        }
 }
 
@@ -10704,6 +10709,7 @@ static void bnxt_rx_ring_reset(struct bnxt *bp)
                rxr->bnapi->in_reset = false;
                bnxt_alloc_one_rx_ring(bp, i);
                cpr = &rxr->bnapi->cp_ring;
+               cpr->sw_stats.rx.rx_resets++;
                if (bp->flags & BNXT_FLAG_AGG_RINGS)
                        bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod);
                bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h 
b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index e940a242d958..7d0e6022dc19 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -907,6 +907,7 @@ struct bnxt_rx_ring_info {
 
 struct bnxt_rx_sw_stats {
        u64                     rx_l4_csum_errors;
+       u64                     rx_resets;
        u64                     rx_buf_errors;
 };
 
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c 
b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index 19b8e3e822f1..52b4ea6ef8c9 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -178,6 +178,7 @@ static const char * const bnxt_ring_tpa2_stats_str[] = {
 
 static const char * const bnxt_rx_sw_stats_str[] = {
        "rx_l4_csum_errors",
+       "rx_resets",
        "rx_buf_errors",
 };
 
-- 
2.18.1

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