commit 0e898dd7a820c258270af36074427e0bed48c8db
author Barak Witkowski <barak@broadcom.com> Mon Dec 05 21:52:22 2011 +0000
committer David S. Miller <davem@davemloft.net> Tue Dec 06 13:06:04 2011 -0500
tree b0321d296c66a79e86c210ebd68a8e314db0c810
parent f0a98ae8db603494d40e8ec9d7d2dfd41c9f6dc8

bnx2x: add PFC statistics

Add Priority flow control counters for ethtool -S.

Signed-off-by: Barak Witkowski <barak@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
index 3034f0e..c943545 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
@@ -540,6 +540,25 @@
 		UPDATE_STAT64(tx_stat_gterr,
 				tx_stat_dot3statsinternalmactransmiterrors);
 		UPDATE_STAT64(tx_stat_gtufl, tx_stat_mac_ufl);
+
+		/* collect PFC stats */
+		DIFF_64(diff.hi, new->tx_stat_gtpp_hi,
+			pstats->pfc_frames_tx_hi,
+			diff.lo, new->tx_stat_gtpp_lo,
+			pstats->pfc_frames_tx_lo);
+		pstats->pfc_frames_tx_hi = new->tx_stat_gtpp_hi;
+		pstats->pfc_frames_tx_lo = new->tx_stat_gtpp_lo;
+		ADD_64(pstats->pfc_frames_tx_hi, diff.hi,
+			pstats->pfc_frames_tx_lo, diff.lo);
+
+		DIFF_64(diff.hi, new->rx_stat_grpp_hi,
+			pstats->pfc_frames_rx_hi,
+			diff.lo, new->rx_stat_grpp_lo,
+			pstats->pfc_frames_rx_lo);
+		pstats->pfc_frames_rx_hi = new->rx_stat_grpp_hi;
+		pstats->pfc_frames_rx_lo = new->rx_stat_grpp_lo;
+		ADD_64(pstats->pfc_frames_rx_hi, diff.hi,
+			pstats->pfc_frames_rx_lo, diff.lo);
 	}
 
 	estats->pause_frames_received_hi =
@@ -551,6 +570,15 @@
 				pstats->mac_stx[1].tx_stat_outxoffsent_hi;
 	estats->pause_frames_sent_lo =
 				pstats->mac_stx[1].tx_stat_outxoffsent_lo;
+
+	estats->pfc_frames_received_hi =
+				pstats->pfc_frames_rx_hi;
+	estats->pfc_frames_received_lo =
+				pstats->pfc_frames_rx_lo;
+	estats->pfc_frames_sent_hi =
+				pstats->pfc_frames_tx_hi;
+	estats->pfc_frames_sent_lo =
+				pstats->pfc_frames_tx_lo;
 }
 
 static void bnx2x_mstat_stats_update(struct bnx2x *bp)
@@ -571,6 +599,11 @@
 	ADD_STAT64(stats_tx.tx_gtxpf, tx_stat_outxoffsent);
 	ADD_STAT64(stats_tx.tx_gtxpf, tx_stat_flowcontroldone);
 
+	/* collect pfc stats */
+	ADD_64(pstats->pfc_frames_tx_hi, new->stats_tx.tx_gtxpp_hi,
+		pstats->pfc_frames_tx_lo, new->stats_tx.tx_gtxpp_lo);
+	ADD_64(pstats->pfc_frames_rx_hi, new->stats_rx.rx_grxpp_hi,
+		pstats->pfc_frames_rx_lo, new->stats_rx.rx_grxpp_lo);
 
 	ADD_STAT64(stats_tx.tx_gt64, tx_stat_etherstatspkts64octets);
 	ADD_STAT64(stats_tx.tx_gt127,
@@ -628,6 +661,15 @@
 				pstats->mac_stx[1].tx_stat_outxoffsent_hi;
 	estats->pause_frames_sent_lo =
 				pstats->mac_stx[1].tx_stat_outxoffsent_lo;
+
+	estats->pfc_frames_received_hi =
+				pstats->pfc_frames_rx_hi;
+	estats->pfc_frames_received_lo =
+				pstats->pfc_frames_rx_lo;
+	estats->pfc_frames_sent_hi =
+				pstats->pfc_frames_tx_hi;
+	estats->pfc_frames_sent_lo =
+				pstats->pfc_frames_tx_lo;
 }
 
 static void bnx2x_emac_stats_update(struct bnx2x *bp)
@@ -740,7 +782,7 @@
 	estats->brb_drop_hi = pstats->brb_drop_hi;
 	estats->brb_drop_lo = pstats->brb_drop_lo;
 
-	pstats->host_port_stats_start = ++pstats->host_port_stats_end;
+	pstats->host_port_stats_counter++;
 
 	if (!BP_NOMCP(bp)) {
 		u32 nig_timer_max =