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Commit c77192f2 authored by Michael Chan's avatar Michael Chan Committed by David S. Miller
Browse files

bnxt_en: Add PFC statistics. 



Report PFC statistics to ethtool -S and DCBNL.

Signed-off-by: default avatarMichael Chan <michael.chan@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7df4ae9f

drivers/net/ethernet/broadcom/bnxt/bnxt.h

+7 −0
Original line number Diff line number Diff line
@@ -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)

{

drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c

+13 −1
Original line number Diff line number Diff line
@@ -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;

}

drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c

+16 −7
Original line number Diff line number Diff line
@@ -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),