netdev - [PATCH net-next 01/14] net: dsa: felix: add definitions for the stream filter counters

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Date:   Thu,  8 Sep 2022 19:48:03 +0300
From:   Vladimir Oltean <vladimir.oltean@....com>
To:     netdev@...r.kernel.org
Cc:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Xiaoliang Yang <xiaoliang.yang_1@....com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        UNGLinuxDriver@...rochip.com, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Maxim Kochetkov <fido_max@...ox.ru>,
        Colin Foster <colin.foster@...advantage.com>,
        Richie Pearn <richard.pearn@....com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH net-next 01/14] net: dsa: felix: add definitions for the stream filter counters

TSN stream (802.1Qci, 802.1CB) filters are also accessed through
STAT_VIEW, just like the port registers, but these counters are per
stream, rather than per port. So we don't keep them in
ocelot_port_update_stats().

What we can do, however, is we can create register definitions for them
just like we have for the port counters, and delete the last remaining
user of the SYS_CNT register + a group index (read_gix).

Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
---
 drivers/net/dsa/ocelot/felix_vsc9959.c   | 15 ++++++++++-----
 drivers/net/dsa/ocelot/seville_vsc9953.c |  1 -
 drivers/net/ethernet/mscc/vsc7514_regs.c |  1 -
 include/soc/mscc/ocelot.h                |  5 ++++-
 4 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/drivers/net/dsa/ocelot/felix_vsc9959.c b/drivers/net/dsa/ocelot/felix_vsc9959.c
index 1cdce8a98d1d..10db0b69b681 100644
--- a/drivers/net/dsa/ocelot/felix_vsc9959.c
+++ b/drivers/net/dsa/ocelot/felix_vsc9959.c
@@ -366,6 +366,10 @@ static const u32 vsc9959_sys_regmap[] = {
 	REG(SYS_COUNT_DROP_GREEN_PRIO_5,	0x00043c),
 	REG(SYS_COUNT_DROP_GREEN_PRIO_6,	0x000440),
 	REG(SYS_COUNT_DROP_GREEN_PRIO_7,	0x000444),
+	REG(SYS_COUNT_SF_MATCHING_FRAMES,	0x000800),
+	REG(SYS_COUNT_SF_NOT_PASSING_FRAMES,	0x000804),
+	REG(SYS_COUNT_SF_NOT_PASSING_SDU,	0x000808),
+	REG(SYS_COUNT_SF_RED_FRAMES,		0x00080c),
 	REG(SYS_RESET_CFG,			0x000e00),
 	REG(SYS_SR_ETYPE_CFG,			0x000e04),
 	REG(SYS_VLAN_ETYPE_CFG,			0x000e08),
@@ -387,7 +391,6 @@ static const u32 vsc9959_sys_regmap[] = {
 	REG_RESERVED(SYS_MMGT_FAST),
 	REG_RESERVED(SYS_EVENTS_DIF),
 	REG_RESERVED(SYS_EVENTS_CORE),
-	REG(SYS_CNT,				0x000000),
 	REG(SYS_PTP_STATUS,			0x000f14),
 	REG(SYS_PTP_TXSTAMP,			0x000f18),
 	REG(SYS_PTP_NXT,			0x000f1c),
@@ -2522,10 +2525,12 @@ static void vsc9959_psfp_counters_get(struct ocelot *ocelot, u32 index,
 		   SYS_STAT_CFG_STAT_VIEW_M,
 		   SYS_STAT_CFG);
 
-	counters->match = ocelot_read_gix(ocelot, SYS_CNT, 0x200);
-	counters->not_pass_gate = ocelot_read_gix(ocelot, SYS_CNT, 0x201);
-	counters->not_pass_sdu = ocelot_read_gix(ocelot, SYS_CNT, 0x202);
-	counters->red = ocelot_read_gix(ocelot, SYS_CNT, 0x203);
+	counters->match = ocelot_read(ocelot, SYS_COUNT_SF_MATCHING_FRAMES);
+	counters->not_pass_gate = ocelot_read(ocelot,
+					      SYS_COUNT_SF_NOT_PASSING_FRAMES);
+	counters->not_pass_sdu = ocelot_read(ocelot,
+					     SYS_COUNT_SF_NOT_PASSING_SDU);
+	counters->red = ocelot_read(ocelot, SYS_COUNT_SF_RED_FRAMES);
 
 	/* Clear the PSFP counter. */
 	ocelot_write(ocelot,
diff --git a/drivers/net/dsa/ocelot/seville_vsc9953.c b/drivers/net/dsa/ocelot/seville_vsc9953.c
index b34f4cdfe814..26fdd0d90724 100644
--- a/drivers/net/dsa/ocelot/seville_vsc9953.c
+++ b/drivers/net/dsa/ocelot/seville_vsc9953.c
@@ -383,7 +383,6 @@ static const u32 vsc9953_sys_regmap[] = {
 	REG_RESERVED(SYS_MMGT_FAST),
 	REG_RESERVED(SYS_EVENTS_DIF),
 	REG_RESERVED(SYS_EVENTS_CORE),
-	REG_RESERVED(SYS_CNT),
 	REG_RESERVED(SYS_PTP_STATUS),
 	REG_RESERVED(SYS_PTP_TXSTAMP),
 	REG_RESERVED(SYS_PTP_NXT),
diff --git a/drivers/net/ethernet/mscc/vsc7514_regs.c b/drivers/net/ethernet/mscc/vsc7514_regs.c
index 9cf82ecf191c..bd062203a6b2 100644
--- a/drivers/net/ethernet/mscc/vsc7514_regs.c
+++ b/drivers/net/ethernet/mscc/vsc7514_regs.c
@@ -283,7 +283,6 @@ const u32 vsc7514_sys_regmap[] = {
 	REG(SYS_MMGT_FAST,				0x0006a0),
 	REG(SYS_EVENTS_DIF,				0x0006a4),
 	REG(SYS_EVENTS_CORE,				0x0006b4),
-	REG(SYS_CNT,					0x000000),
 	REG(SYS_PTP_STATUS,				0x0006b8),
 	REG(SYS_PTP_TXSTAMP,				0x0006bc),
 	REG(SYS_PTP_NXT,				0x0006c0),
diff --git a/include/soc/mscc/ocelot.h b/include/soc/mscc/ocelot.h
index 2a7e18ee5577..99d679235070 100644
--- a/include/soc/mscc/ocelot.h
+++ b/include/soc/mscc/ocelot.h
@@ -411,6 +411,10 @@ enum ocelot_reg {
 	SYS_COUNT_DROP_GREEN_PRIO_5,
 	SYS_COUNT_DROP_GREEN_PRIO_6,
 	SYS_COUNT_DROP_GREEN_PRIO_7,
+	SYS_COUNT_SF_MATCHING_FRAMES,
+	SYS_COUNT_SF_NOT_PASSING_FRAMES,
+	SYS_COUNT_SF_NOT_PASSING_SDU,
+	SYS_COUNT_SF_RED_FRAMES,
 	SYS_RESET_CFG,
 	SYS_SR_ETYPE_CFG,
 	SYS_VLAN_ETYPE_CFG,
@@ -433,7 +437,6 @@ enum ocelot_reg {
 	SYS_MMGT_FAST,
 	SYS_EVENTS_DIF,
 	SYS_EVENTS_CORE,
-	SYS_CNT,
 	SYS_PTP_STATUS,
 	SYS_PTP_TXSTAMP,
 	SYS_PTP_NXT,
-- 
2.34.1