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bnxt_en: Add tx_resets ring counter

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Add a new tx_resets ring counter.  This counter will be saved as
tx_total_resets across any reset.  Since we currently do a full reset
in bnxt_sched_reset_txr(), the per ring counter will always be cleared
during reset.  Only the tx_total_resets count will be meaningful and we
only display this under ethtool -S.

Link: https://lore.kernel.org/netdev/CACKFLimD-bKmJ1tGZOLYRjWzEwxkri-Mw7iFme1x2Dr0twdCeg@mail.gmail.com/
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20230817231911.165035-7-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Michael Chan 2023-08-17 16:19:11 -07:00 • committed by Jakub Kicinski
parent a080b47a04
commit 8becd1961c
3 changed files with 10 additions and 0 deletions
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3
drivers/net/ethernet/broadcom/bnxt/bnxt.c
View file

@ -9397,6 +9397,8 @@ static void bnxt_disable_napi(struct bnxt *bp)
struct bnxt_cp_ring_info *cpr;
cpr = &bnapi->cp_ring;
if (bnapi->tx_fault)
cpr->sw_stats.tx.tx_resets++;
if (bnapi->in_reset)
cpr->sw_stats.rx.rx_resets++;
napi_disable(&bnapi->napi);
@ -10951,6 +10953,7 @@ static void bnxt_get_one_ring_err_stats(struct bnxt *bp,
stats->rx_total_netpoll_discards += sw_stats->rx.rx_netpoll_discards;
stats->rx_total_ring_discards +=
BNXT_GET_RING_STATS64(hw_stats, rx_discard_pkts);
stats->tx_total_resets += sw_stats->tx.tx_resets;
stats->tx_total_ring_discards +=
BNXT_GET_RING_STATS64(hw_stats, tx_discard_pkts);
stats->total_missed_irqs += sw_stats->cmn.missed_irqs;

6
drivers/net/ethernet/broadcom/bnxt/bnxt.h
View file

@ -939,12 +939,17 @@ struct bnxt_rx_sw_stats {
u64 rx_netpoll_discards;
};
struct bnxt_tx_sw_stats {
u64 tx_resets;
};
struct bnxt_cmn_sw_stats {
u64 missed_irqs;
};
struct bnxt_sw_stats {
struct bnxt_rx_sw_stats rx;
struct bnxt_tx_sw_stats tx;
struct bnxt_cmn_sw_stats cmn;
};
@ -955,6 +960,7 @@ struct bnxt_total_ring_err_stats {
u64 rx_total_oom_discards;
u64 rx_total_netpoll_discards;
u64 rx_total_ring_discards;
u64 tx_total_resets;
u64 tx_total_ring_discards;
u64 total_missed_irqs;
};

1
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
View file

@ -346,6 +346,7 @@ static const char *const bnxt_ring_err_stats_arr[] = {
"rx_total_oom_discards",
"rx_total_netpoll_discards",
"rx_total_ring_discards",
"tx_total_resets",
"tx_total_ring_discards",
"total_missed_irqs",
};