[PATCH net-next v2 3/6] net: microchip: sparx5: add support for offloading pcp table
Daniel Machon
daniel.machon at microchip.com
Thu Sep 29 11:52:04 PDT 2022
Add new registers and functions to support offload of pcp app entries.
Signed-off-by: Daniel Machon <daniel.machon at microchip.com>
---
.../net/ethernet/microchip/sparx5/Makefile | 2 +-
.../ethernet/microchip/sparx5/sparx5_dcb.c | 101 ++++++++++++++
.../ethernet/microchip/sparx5/sparx5_main.h | 1 +
.../microchip/sparx5/sparx5_main_regs.h | 127 +++++++++++++++++-
.../ethernet/microchip/sparx5/sparx5_netdev.c | 1 +
.../ethernet/microchip/sparx5/sparx5_port.c | 37 +++++
.../ethernet/microchip/sparx5/sparx5_port.h | 17 +++
7 files changed, 283 insertions(+), 3 deletions(-)
create mode 100644 drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c
diff --git a/drivers/net/ethernet/microchip/sparx5/Makefile b/drivers/net/ethernet/microchip/sparx5/Makefile
index d1c6ad966747..e3460e16f8fc 100644
--- a/drivers/net/ethernet/microchip/sparx5/Makefile
+++ b/drivers/net/ethernet/microchip/sparx5/Makefile
@@ -8,4 +8,4 @@ obj-$(CONFIG_SPARX5_SWITCH) += sparx5-switch.o
sparx5-switch-objs := sparx5_main.o sparx5_packet.o \
sparx5_netdev.o sparx5_phylink.o sparx5_port.o sparx5_mactable.o sparx5_vlan.o \
sparx5_switchdev.o sparx5_calendar.o sparx5_ethtool.o sparx5_fdma.o \
- sparx5_ptp.o sparx5_pgid.o sparx5_tc.o sparx5_qos.o
+ sparx5_ptp.o sparx5_pgid.o sparx5_tc.o sparx5_qos.o sparx5_dcb.o
\ No newline at end of file
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c b/drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c
new file mode 100644
index 000000000000..db17c124dac8
--- /dev/null
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c
@@ -0,0 +1,101 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Microchip Sparx5 Switch driver
+ *
+ * Copyright (c) 2022 Microchip Technology Inc. and its subsidiaries.
+ */
+
+#include <net/dcbnl.h>
+
+#include "sparx5_port.h"
+
+/* Validate app entry.
+ *
+ * Check for valid selectors and valid protocol and priority ranges.
+ */
+static int sparx5_dcb_app_validate(struct net_device *dev,
+ const struct dcb_app *app)
+{
+ int err = 0;
+
+ switch (app->selector) {
+ /* Pcp checks */
+ case DCB_APP_SEL_PCP:
+ if (app->protocol > 15)
+ err = -EINVAL;
+ else if (app->priority >= SPX5_PRIOS)
+ err = -ERANGE;
+ break;
+ default:
+ err = -EINVAL;
+ break;
+ }
+
+ if (err)
+ netdev_err(dev, "Invalid entry: %d:%d\n", app->protocol,
+ app->priority);
+
+ return err;
+}
+
+static int sparx5_dcb_app_update(struct net_device *dev)
+{
+ struct dcb_app app_itr = { .selector = DCB_APP_SEL_PCP };
+ struct sparx5_port *port = netdev_priv(dev);
+ struct sparx5_port_qos_pcp_map *pcp_map;
+ struct sparx5_port_qos qos = {0};
+ int i;
+
+ pcp_map = &qos.pcp.map;
+
+ /* Get pcp ingress mapping */
+ for (i = 0; i < ARRAY_SIZE(pcp_map->map); i++) {
+ app_itr.protocol = i;
+ pcp_map->map[i] = dcb_getapp(dev, &app_itr);
+ }
+
+ return sparx5_port_qos_set(port, &qos);
+}
+
+static int sparx5_dcb_ieee_setapp(struct net_device *dev, struct dcb_app *app)
+{
+ struct dcb_app app_itr;
+ int err = 0;
+ u8 prio;
+
+ err = sparx5_dcb_app_validate(dev, app);
+ if (err)
+ goto out;
+
+ /* Delete current mapping, if it exists */
+ prio = dcb_getapp(dev, app);
+ if (prio) {
+ app_itr = *app;
+ app_itr.priority = prio;
+ dcb_ieee_delapp(dev, &app_itr);
+ }
+
+ err = dcb_ieee_setapp(dev, app);
+ if (err)
+ goto out;
+
+ sparx5_dcb_app_update(dev);
+
+out:
+ return err;
+}
+
+static int sparx5_dcb_ieee_delapp(struct net_device *dev, struct dcb_app *app)
+{
+ int err;
+
+ err = dcb_ieee_delapp(dev, app);
+ if (err < 0)
+ return err;
+
+ return sparx5_dcb_app_update(dev);
+}
+
+const struct dcbnl_rtnl_ops sparx5_dcbnl_ops = {
+ .ieee_setapp = sparx5_dcb_ieee_setapp,
+ .ieee_delapp = sparx5_dcb_ieee_delapp,
+};
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_main.h b/drivers/net/ethernet/microchip/sparx5/sparx5_main.h
index 8b42cad0e49c..0d8e04c64584 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_main.h
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_main.h
@@ -418,6 +418,7 @@ static inline bool sparx5_is_baser(phy_interface_t interface)
extern const struct phylink_mac_ops sparx5_phylink_mac_ops;
extern const struct phylink_pcs_ops sparx5_phylink_pcs_ops;
extern const struct ethtool_ops sparx5_ethtool_ops;
+extern const struct dcbnl_rtnl_ops sparx5_dcbnl_ops;
/* Calculate raw offset */
static inline __pure int spx5_offset(int id, int tinst, int tcnt,
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_main_regs.h b/drivers/net/ethernet/microchip/sparx5/sparx5_main_regs.h
index fa2eb70f487a..e8c3a0d6074f 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_main_regs.h
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_main_regs.h
@@ -4,8 +4,8 @@
* Copyright (c) 2021 Microchip Technology Inc.
*/
-/* This file is autogenerated by cml-utils 2022-02-26 14:15:01 +0100.
- * Commit ID: 98bdd3d171cc2a1afd30d241d41a4281d471a48c (dirty)
+/* This file is autogenerated by cml-utils 2022-09-28 11:17:02 +0200.
+ * Commit ID: 385c8a11d71a9f6a60368d3a3cb648fa257b479a
*/
#ifndef _SPARX5_MAIN_REGS_H_
@@ -426,6 +426,96 @@ enum sparx5_target {
#define ANA_CL_VLAN_CTRL_2_VLAN_PUSH_CNT_GET(x)\
FIELD_GET(ANA_CL_VLAN_CTRL_2_VLAN_PUSH_CNT, x)
+/* ANA_CL:PORT:PCP_DEI_MAP_CFG */
+#define ANA_CL_PCP_DEI_MAP_CFG(g, r) __REG(TARGET_ANA_CL, 0, 1, 131072, g, 70, 512, 108, r, 16, 4)
+
+#define ANA_CL_PCP_DEI_MAP_CFG_PCP_DEI_DP_VAL GENMASK(4, 3)
+#define ANA_CL_PCP_DEI_MAP_CFG_PCP_DEI_DP_VAL_SET(x)\
+ FIELD_PREP(ANA_CL_PCP_DEI_MAP_CFG_PCP_DEI_DP_VAL, x)
+#define ANA_CL_PCP_DEI_MAP_CFG_PCP_DEI_DP_VAL_GET(x)\
+ FIELD_GET(ANA_CL_PCP_DEI_MAP_CFG_PCP_DEI_DP_VAL, x)
+
+#define ANA_CL_PCP_DEI_MAP_CFG_PCP_DEI_QOS_VAL GENMASK(2, 0)
+#define ANA_CL_PCP_DEI_MAP_CFG_PCP_DEI_QOS_VAL_SET(x)\
+ FIELD_PREP(ANA_CL_PCP_DEI_MAP_CFG_PCP_DEI_QOS_VAL, x)
+#define ANA_CL_PCP_DEI_MAP_CFG_PCP_DEI_QOS_VAL_GET(x)\
+ FIELD_GET(ANA_CL_PCP_DEI_MAP_CFG_PCP_DEI_QOS_VAL, x)
+
+/* ANA_CL:PORT:QOS_CFG */
+#define ANA_CL_QOS_CFG(g) __REG(TARGET_ANA_CL, 0, 1, 131072, g, 70, 512, 172, 0, 1, 4)
+
+#define ANA_CL_QOS_CFG_DEFAULT_COSID_ENA BIT(17)
+#define ANA_CL_QOS_CFG_DEFAULT_COSID_ENA_SET(x)\
+ FIELD_PREP(ANA_CL_QOS_CFG_DEFAULT_COSID_ENA, x)
+#define ANA_CL_QOS_CFG_DEFAULT_COSID_ENA_GET(x)\
+ FIELD_GET(ANA_CL_QOS_CFG_DEFAULT_COSID_ENA, x)
+
+#define ANA_CL_QOS_CFG_DEFAULT_COSID_VAL GENMASK(16, 14)
+#define ANA_CL_QOS_CFG_DEFAULT_COSID_VAL_SET(x)\
+ FIELD_PREP(ANA_CL_QOS_CFG_DEFAULT_COSID_VAL, x)
+#define ANA_CL_QOS_CFG_DEFAULT_COSID_VAL_GET(x)\
+ FIELD_GET(ANA_CL_QOS_CFG_DEFAULT_COSID_VAL, x)
+
+#define ANA_CL_QOS_CFG_DSCP_REWR_MODE_SEL GENMASK(13, 12)
+#define ANA_CL_QOS_CFG_DSCP_REWR_MODE_SEL_SET(x)\
+ FIELD_PREP(ANA_CL_QOS_CFG_DSCP_REWR_MODE_SEL, x)
+#define ANA_CL_QOS_CFG_DSCP_REWR_MODE_SEL_GET(x)\
+ FIELD_GET(ANA_CL_QOS_CFG_DSCP_REWR_MODE_SEL, x)
+
+#define ANA_CL_QOS_CFG_DSCP_TRANSLATE_ENA BIT(11)
+#define ANA_CL_QOS_CFG_DSCP_TRANSLATE_ENA_SET(x)\
+ FIELD_PREP(ANA_CL_QOS_CFG_DSCP_TRANSLATE_ENA, x)
+#define ANA_CL_QOS_CFG_DSCP_TRANSLATE_ENA_GET(x)\
+ FIELD_GET(ANA_CL_QOS_CFG_DSCP_TRANSLATE_ENA, x)
+
+#define ANA_CL_QOS_CFG_DSCP_KEEP_ENA BIT(10)
+#define ANA_CL_QOS_CFG_DSCP_KEEP_ENA_SET(x)\
+ FIELD_PREP(ANA_CL_QOS_CFG_DSCP_KEEP_ENA, x)
+#define ANA_CL_QOS_CFG_DSCP_KEEP_ENA_GET(x)\
+ FIELD_GET(ANA_CL_QOS_CFG_DSCP_KEEP_ENA, x)
+
+#define ANA_CL_QOS_CFG_KEEP_ENA BIT(9)
+#define ANA_CL_QOS_CFG_KEEP_ENA_SET(x)\
+ FIELD_PREP(ANA_CL_QOS_CFG_KEEP_ENA, x)
+#define ANA_CL_QOS_CFG_KEEP_ENA_GET(x)\
+ FIELD_GET(ANA_CL_QOS_CFG_KEEP_ENA, x)
+
+#define ANA_CL_QOS_CFG_PCP_DEI_DP_ENA BIT(8)
+#define ANA_CL_QOS_CFG_PCP_DEI_DP_ENA_SET(x)\
+ FIELD_PREP(ANA_CL_QOS_CFG_PCP_DEI_DP_ENA, x)
+#define ANA_CL_QOS_CFG_PCP_DEI_DP_ENA_GET(x)\
+ FIELD_GET(ANA_CL_QOS_CFG_PCP_DEI_DP_ENA, x)
+
+#define ANA_CL_QOS_CFG_PCP_DEI_QOS_ENA BIT(7)
+#define ANA_CL_QOS_CFG_PCP_DEI_QOS_ENA_SET(x)\
+ FIELD_PREP(ANA_CL_QOS_CFG_PCP_DEI_QOS_ENA, x)
+#define ANA_CL_QOS_CFG_PCP_DEI_QOS_ENA_GET(x)\
+ FIELD_GET(ANA_CL_QOS_CFG_PCP_DEI_QOS_ENA, x)
+
+#define ANA_CL_QOS_CFG_DSCP_DP_ENA BIT(6)
+#define ANA_CL_QOS_CFG_DSCP_DP_ENA_SET(x)\
+ FIELD_PREP(ANA_CL_QOS_CFG_DSCP_DP_ENA, x)
+#define ANA_CL_QOS_CFG_DSCP_DP_ENA_GET(x)\
+ FIELD_GET(ANA_CL_QOS_CFG_DSCP_DP_ENA, x)
+
+#define ANA_CL_QOS_CFG_DSCP_QOS_ENA BIT(5)
+#define ANA_CL_QOS_CFG_DSCP_QOS_ENA_SET(x)\
+ FIELD_PREP(ANA_CL_QOS_CFG_DSCP_QOS_ENA, x)
+#define ANA_CL_QOS_CFG_DSCP_QOS_ENA_GET(x)\
+ FIELD_GET(ANA_CL_QOS_CFG_DSCP_QOS_ENA, x)
+
+#define ANA_CL_QOS_CFG_DEFAULT_DP_VAL GENMASK(4, 3)
+#define ANA_CL_QOS_CFG_DEFAULT_DP_VAL_SET(x)\
+ FIELD_PREP(ANA_CL_QOS_CFG_DEFAULT_DP_VAL, x)
+#define ANA_CL_QOS_CFG_DEFAULT_DP_VAL_GET(x)\
+ FIELD_GET(ANA_CL_QOS_CFG_DEFAULT_DP_VAL, x)
+
+#define ANA_CL_QOS_CFG_DEFAULT_QOS_VAL GENMASK(2, 0)
+#define ANA_CL_QOS_CFG_DEFAULT_QOS_VAL_SET(x)\
+ FIELD_PREP(ANA_CL_QOS_CFG_DEFAULT_QOS_VAL, x)
+#define ANA_CL_QOS_CFG_DEFAULT_QOS_VAL_GET(x)\
+ FIELD_GET(ANA_CL_QOS_CFG_DEFAULT_QOS_VAL, x)
+
/* ANA_CL:PORT:CAPTURE_BPDU_CFG */
#define ANA_CL_CAPTURE_BPDU_CFG(g) __REG(TARGET_ANA_CL, 0, 1, 131072, g, 70, 512, 196, 0, 1, 4)
@@ -438,6 +528,39 @@ enum sparx5_target {
#define ANA_CL_OWN_UPSID_OWN_UPSID_GET(x)\
FIELD_GET(ANA_CL_OWN_UPSID_OWN_UPSID, x)
+/* ANA_CL:COMMON:DSCP_CFG */
+#define ANA_CL_DSCP_CFG(r) __REG(TARGET_ANA_CL, 0, 1, 166912, 0, 1, 756, 256, r, 64, 4)
+
+#define ANA_CL_DSCP_CFG_DSCP_TRANSLATE_VAL GENMASK(12, 7)
+#define ANA_CL_DSCP_CFG_DSCP_TRANSLATE_VAL_SET(x)\
+ FIELD_PREP(ANA_CL_DSCP_CFG_DSCP_TRANSLATE_VAL, x)
+#define ANA_CL_DSCP_CFG_DSCP_TRANSLATE_VAL_GET(x)\
+ FIELD_GET(ANA_CL_DSCP_CFG_DSCP_TRANSLATE_VAL, x)
+
+#define ANA_CL_DSCP_CFG_DSCP_QOS_VAL GENMASK(6, 4)
+#define ANA_CL_DSCP_CFG_DSCP_QOS_VAL_SET(x)\
+ FIELD_PREP(ANA_CL_DSCP_CFG_DSCP_QOS_VAL, x)
+#define ANA_CL_DSCP_CFG_DSCP_QOS_VAL_GET(x)\
+ FIELD_GET(ANA_CL_DSCP_CFG_DSCP_QOS_VAL, x)
+
+#define ANA_CL_DSCP_CFG_DSCP_DP_VAL GENMASK(3, 2)
+#define ANA_CL_DSCP_CFG_DSCP_DP_VAL_SET(x)\
+ FIELD_PREP(ANA_CL_DSCP_CFG_DSCP_DP_VAL, x)
+#define ANA_CL_DSCP_CFG_DSCP_DP_VAL_GET(x)\
+ FIELD_GET(ANA_CL_DSCP_CFG_DSCP_DP_VAL, x)
+
+#define ANA_CL_DSCP_CFG_DSCP_REWR_ENA BIT(1)
+#define ANA_CL_DSCP_CFG_DSCP_REWR_ENA_SET(x)\
+ FIELD_PREP(ANA_CL_DSCP_CFG_DSCP_REWR_ENA, x)
+#define ANA_CL_DSCP_CFG_DSCP_REWR_ENA_GET(x)\
+ FIELD_GET(ANA_CL_DSCP_CFG_DSCP_REWR_ENA, x)
+
+#define ANA_CL_DSCP_CFG_DSCP_TRUST_ENA BIT(0)
+#define ANA_CL_DSCP_CFG_DSCP_TRUST_ENA_SET(x)\
+ FIELD_PREP(ANA_CL_DSCP_CFG_DSCP_TRUST_ENA, x)
+#define ANA_CL_DSCP_CFG_DSCP_TRUST_ENA_GET(x)\
+ FIELD_GET(ANA_CL_DSCP_CFG_DSCP_TRUST_ENA, x)
+
/* ANA_L2:COMMON:AUTO_LRN_CFG */
#define ANA_L2_AUTO_LRN_CFG __REG(TARGET_ANA_L2, 0, 1, 566024, 0, 1, 700, 24, 0, 1, 4)
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_netdev.c b/drivers/net/ethernet/microchip/sparx5/sparx5_netdev.c
index 19516ccad533..afe117736e25 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_netdev.c
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_netdev.c
@@ -258,6 +258,7 @@ struct net_device *sparx5_create_netdev(struct sparx5 *sparx5, u32 portno)
ndev->netdev_ops = &sparx5_port_netdev_ops;
ndev->ethtool_ops = &sparx5_ethtool_ops;
+ ndev->dcbnl_ops = &sparx5_dcbnl_ops;
eth_hw_addr_gen(ndev, sparx5->base_mac, portno + 1);
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_port.c b/drivers/net/ethernet/microchip/sparx5/sparx5_port.c
index 32709d21ab2f..9ffaaf34d196 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_port.c
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_port.c
@@ -6,6 +6,7 @@
#include <linux/module.h>
#include <linux/phy/phy.h>
+#include <net/dcbnl.h>
#include "sparx5_main_regs.h"
#include "sparx5_main.h"
@@ -1144,3 +1145,39 @@ void sparx5_port_enable(struct sparx5_port *port, bool enable)
sparx5,
QFWD_SWITCH_PORT_MODE(port->portno));
}
+
+int sparx5_port_qos_set(struct sparx5_port *port,
+ struct sparx5_port_qos *qos)
+{
+ sparx5_port_qos_pcp_set(port, &qos->pcp);
+
+ return 0;
+}
+
+int sparx5_port_qos_pcp_set(const struct sparx5_port *port,
+ struct sparx5_port_qos_pcp *qos)
+{
+ struct sparx5 *sparx5 = port->sparx5;
+ u8 *pcp_itr = qos->map.map;
+ u8 pcp, dp;
+ int i;
+
+ /* Enable/disable pcp and dp for qos classification. */
+ spx5_rmw(ANA_CL_QOS_CFG_PCP_DEI_QOS_ENA_SET(1) |
+ ANA_CL_QOS_CFG_PCP_DEI_DP_ENA_SET(1),
+ ANA_CL_QOS_CFG_PCP_DEI_QOS_ENA | ANA_CL_QOS_CFG_PCP_DEI_DP_ENA,
+ sparx5, ANA_CL_QOS_CFG(port->portno));
+
+ /* Map each pcp and dei value to priority and dp */
+ for (i = 0; i < ARRAY_SIZE(qos->map.map); i++) {
+ pcp = *(pcp_itr + i);
+ dp = (i <= 7) ? 0 : 1;
+ spx5_rmw(ANA_CL_PCP_DEI_MAP_CFG_PCP_DEI_QOS_VAL_SET(pcp) |
+ ANA_CL_PCP_DEI_MAP_CFG_PCP_DEI_DP_VAL_SET(dp),
+ ANA_CL_PCP_DEI_MAP_CFG_PCP_DEI_QOS_VAL |
+ ANA_CL_PCP_DEI_MAP_CFG_PCP_DEI_DP_VAL, sparx5,
+ ANA_CL_PCP_DEI_MAP_CFG(port->portno, i));
+ }
+
+ return 0;
+}
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_port.h b/drivers/net/ethernet/microchip/sparx5/sparx5_port.h
index 2f8043eac71b..9c5fb6b651db 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_port.h
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_port.h
@@ -91,4 +91,21 @@ int sparx5_get_port_status(struct sparx5 *sparx5,
void sparx5_port_enable(struct sparx5_port *port, bool enable);
int sparx5_port_fwd_urg(struct sparx5 *sparx5, u32 speed);
+struct sparx5_port_qos_pcp_map {
+ u8 map[16];
+};
+
+struct sparx5_port_qos_pcp {
+ struct sparx5_port_qos_pcp_map map;
+};
+
+struct sparx5_port_qos {
+ struct sparx5_port_qos_pcp pcp;
+};
+
+int sparx5_port_qos_set(struct sparx5_port *port, struct sparx5_port_qos *qos);
+
+int sparx5_port_qos_pcp_set(const struct sparx5_port *port,
+ struct sparx5_port_qos_pcp *qos);
+
#endif /* __SPARX5_PORT_H__ */
--
2.34.1
More information about the linux-arm-kernel
mailing list