From c77192f2042537b1e0e5f520db91e4d28778195f Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Fri, 2 Dec 2016 21:17:18 -0500 Subject: [PATCH] bnxt_en: Add PFC statistics. Report PFC statistics to ethtool -S and DCBNL. Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.h | 7 ++++++ drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c | 14 ++++++++++- .../net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 23 +++++++++++++------ 3 files changed, 36 insertions(+), 8 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index 2a714cf919c2..b4abc1b505f7 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -1124,6 +1124,13 @@ struct bnxt { u32 lpi_tmr_hi; }; +#define BNXT_RX_STATS_OFFSET(counter) \ + (offsetof(struct rx_port_stats, counter) / 8) + +#define BNXT_TX_STATS_OFFSET(counter) \ + ((offsetof(struct tx_port_stats, counter) + \ + sizeof(struct rx_port_stats) + 512) / 8) + #ifdef CONFIG_NET_RX_BUSY_POLL static inline void bnxt_enable_poll(struct bnxt_napi *bnapi) { diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c index f391b47262bb..fdf2d8caf7bf 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c @@ -347,8 +347,10 @@ static int bnxt_dcbnl_ieee_setets(struct net_device *dev, struct ieee_ets *ets) static int bnxt_dcbnl_ieee_getpfc(struct net_device *dev, struct ieee_pfc *pfc) { struct bnxt *bp = netdev_priv(dev); + __le64 *stats = (__le64 *)bp->hw_rx_port_stats; struct ieee_pfc *my_pfc = bp->ieee_pfc; - int rc; + long rx_off, tx_off; + int i, rc; pfc->pfc_cap = bp->max_lltc; @@ -369,6 +371,16 @@ static int bnxt_dcbnl_ieee_getpfc(struct net_device *dev, struct ieee_pfc *pfc) pfc->mbc = my_pfc->mbc; pfc->delay = my_pfc->delay; + if (!stats) + return 0; + + rx_off = BNXT_RX_STATS_OFFSET(rx_pfc_ena_frames_pri0); + tx_off = BNXT_TX_STATS_OFFSET(tx_pfc_ena_frames_pri0); + for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++, rx_off++, tx_off++) { + pfc->requests[i] = le64_to_cpu(*(stats + tx_off)); + pfc->indications[i] = le64_to_cpu(*(stats + rx_off)); + } + return 0; } diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c index fa6125eb24af..784aa77610bc 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c @@ -107,16 +107,9 @@ static int bnxt_set_coalesce(struct net_device *dev, #define BNXT_NUM_STATS 21 -#define BNXT_RX_STATS_OFFSET(counter) \ - (offsetof(struct rx_port_stats, counter) / 8) - #define BNXT_RX_STATS_ENTRY(counter) \ { BNXT_RX_STATS_OFFSET(counter), __stringify(counter) } -#define BNXT_TX_STATS_OFFSET(counter) \ - ((offsetof(struct tx_port_stats, counter) + \ - sizeof(struct rx_port_stats) + 512) / 8) - #define BNXT_TX_STATS_ENTRY(counter) \ { BNXT_TX_STATS_OFFSET(counter), __stringify(counter) } @@ -150,6 +143,14 @@ static const struct { BNXT_RX_STATS_ENTRY(rx_tagged_frames), BNXT_RX_STATS_ENTRY(rx_double_tagged_frames), BNXT_RX_STATS_ENTRY(rx_good_frames), + BNXT_RX_STATS_ENTRY(rx_pfc_ena_frames_pri0), + BNXT_RX_STATS_ENTRY(rx_pfc_ena_frames_pri1), + BNXT_RX_STATS_ENTRY(rx_pfc_ena_frames_pri2), + BNXT_RX_STATS_ENTRY(rx_pfc_ena_frames_pri3), + BNXT_RX_STATS_ENTRY(rx_pfc_ena_frames_pri4), + BNXT_RX_STATS_ENTRY(rx_pfc_ena_frames_pri5), + BNXT_RX_STATS_ENTRY(rx_pfc_ena_frames_pri6), + BNXT_RX_STATS_ENTRY(rx_pfc_ena_frames_pri7), BNXT_RX_STATS_ENTRY(rx_undrsz_frames), BNXT_RX_STATS_ENTRY(rx_eee_lpi_events), BNXT_RX_STATS_ENTRY(rx_eee_lpi_duration), @@ -179,6 +180,14 @@ static const struct { BNXT_TX_STATS_ENTRY(tx_fcs_err_frames), BNXT_TX_STATS_ENTRY(tx_err), BNXT_TX_STATS_ENTRY(tx_fifo_underruns), + BNXT_TX_STATS_ENTRY(tx_pfc_ena_frames_pri0), + BNXT_TX_STATS_ENTRY(tx_pfc_ena_frames_pri1), + BNXT_TX_STATS_ENTRY(tx_pfc_ena_frames_pri2), + BNXT_TX_STATS_ENTRY(tx_pfc_ena_frames_pri3), + BNXT_TX_STATS_ENTRY(tx_pfc_ena_frames_pri4), + BNXT_TX_STATS_ENTRY(tx_pfc_ena_frames_pri5), + BNXT_TX_STATS_ENTRY(tx_pfc_ena_frames_pri6), + BNXT_TX_STATS_ENTRY(tx_pfc_ena_frames_pri7), BNXT_TX_STATS_ENTRY(tx_eee_lpi_events), BNXT_TX_STATS_ENTRY(tx_eee_lpi_duration), BNXT_TX_STATS_ENTRY(tx_total_collisions), -- 2.20.1