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Date: Tue, 29 Jan 2019 16:55:48 -0800
From: Florian Fainelli <f.fainelli@...il.com>
To: netdev@...r.kernel.org
Cc: Florian Fainelli <f.fainelli@...il.com>, andrew@...n.ch,
vivien.didelot@...il.com, davem@...emloft.net, idosch@...lanox.com,
jiri@...lanox.com, ilias.apalodimas@...aro.org,
ivan.khoronzhuk@...aro.org, roopa@...ulusnetworks.com,
nikolay@...ulusnetworks.com
Subject: [PATCH net-next v2 12/12] net: dsa: bcm_sf2: Enable management mode
Now that we have all the necessary plumbing in place to get notified
when a multicast MAC address must be programmed, configure the switch to
oeprate in managed mode and let the network stack learn about management
traffic.
Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
drivers/net/dsa/b53/b53_common.c | 39 ++++++++++++++++++++--
drivers/net/dsa/b53/b53_priv.h | 1 +
drivers/net/dsa/bcm_sf2.c | 56 +++++++++++++++++++++++---------
drivers/net/dsa/bcm_sf2_regs.h | 5 +++
4 files changed, 84 insertions(+), 17 deletions(-)
diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
index c0c064a544b9..10e115a43975 100644
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -364,8 +364,6 @@ static void b53_enable_vlan(struct b53_device *dev, bool enable,
b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5, &vc5);
}
- mgmt &= ~SM_SW_FWD_MODE;
-
if (enable) {
vc0 |= VC0_VLAN_EN | VC0_VID_CHK_EN | VC0_VID_HASH_VID;
vc1 |= VC1_RX_MCST_UNTAG_EN | VC1_RX_MCST_FWD_EN;
@@ -490,6 +488,43 @@ static int b53_fast_age_vlan(struct b53_device *dev, u16 vid)
return b53_flush_arl(dev, FAST_AGE_VLAN);
}
+void b53_port_learn_setup(struct dsa_switch *ds, int port)
+{
+ struct b53_device *dev = ds->priv;
+ u16 reg;
+
+ /* Enable learning */
+ b53_read16(dev, B53_CTRL_PAGE, B53_DIS_LEARN, ®);
+ reg &= ~BIT(port);
+ b53_write16(dev, B53_CTRL_PAGE, B53_DIS_LEARN, reg);
+
+ /* Software learning control disabled */
+ b53_read16(dev, B53_CTRL_PAGE, B53_SFT_LRN_CTRL, ®);
+ reg &= ~BIT(port);
+ b53_write16(dev, B53_CTRL_PAGE, B53_SFT_LRN_CTRL, reg);
+
+ /* Configure IP multicast, allow Unicast ARL misses to be forwarded */
+ b53_read16(dev, B53_CTRL_PAGE, B53_IP_MULTICAST_CTRL, ®);
+ reg |= B53_IPMC_FWD_EN | B53_UC_FWD_EN;
+ b53_write16(dev, B53_CTRL_PAGE, B53_IP_MULTICAST_CTRL, reg);
+
+ /* Set port in Unicast lookup forward map */
+ b53_read16(dev, B53_CTRL_PAGE, B53_UC_FLOOD_MASK, ®);
+ reg |= BIT(port);
+ b53_write16(dev, B53_CTRL_PAGE, B53_UC_FLOOD_MASK, reg);
+
+ /* Do not set port in Multicast lookup forward map, learn */
+ b53_read16(dev, B53_CTRL_PAGE, B53_MC_FLOOD_MASK, ®);
+ reg &= ~BIT(port);
+ b53_write16(dev, B53_CTRL_PAGE, B53_MC_FLOOD_MASK, reg);
+
+ /* Do not set port in IP multicast lookup formward map, learn */
+ b53_read16(dev, B53_CTRL_PAGE, B53_IPMC_FLOOD_MASK, ®);
+ reg &= ~BIT(port);
+ b53_write16(dev, B53_CTRL_PAGE, B53_IPMC_FLOOD_MASK, reg);
+}
+EXPORT_SYMBOL(b53_port_learn_setup);
+
void b53_imp_vlan_setup(struct dsa_switch *ds, int cpu_port)
{
struct b53_device *dev = ds->priv;
diff --git a/drivers/net/dsa/b53/b53_priv.h b/drivers/net/dsa/b53/b53_priv.h
index cd259fb8b00e..1806304c38cc 100644
--- a/drivers/net/dsa/b53/b53_priv.h
+++ b/drivers/net/dsa/b53/b53_priv.h
@@ -309,6 +309,7 @@ static inline int b53_switch_get_reset_gpio(struct b53_device *dev)
#endif
/* Exported functions towards other drivers */
+void b53_port_learn_setup(struct dsa_switch *ds, int port);
void b53_imp_vlan_setup(struct dsa_switch *ds, int cpu_port);
int b53_configure_vlan(struct dsa_switch *ds);
void b53_get_strings(struct dsa_switch *ds, int port, u32 stringset,
diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index 361fbde76654..c9e6ffb737a4 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -51,19 +51,19 @@ static void bcm_sf2_imp_setup(struct dsa_switch *ds, int port)
reg &= ~P_TXQ_PSM_VDD(port);
core_writel(priv, reg, CORE_MEM_PSM_VDD_CTRL);
- /* Enable Broadcast, Multicast, Unicast forwarding to IMP port */
- reg = core_readl(priv, CORE_IMP_CTL);
- reg |= (RX_BCST_EN | RX_MCST_EN | RX_UCST_EN);
- reg &= ~(RX_DIS | TX_DIS);
- core_writel(priv, reg, CORE_IMP_CTL);
+ /* Enable forwarding and managed mode */
+ core_writel(priv, SW_FWDG_EN | SW_FWDG_MODE, CORE_SWMODE);
- /* Enable forwarding */
- core_writel(priv, SW_FWDG_EN, CORE_SWMODE);
+ /* Configure port for learning */
+ b53_port_learn_setup(ds, port);
- /* Enable IMP port in dumb mode */
- reg = core_readl(priv, CORE_SWITCH_CTRL);
- reg |= MII_DUMB_FWDG_EN;
- core_writel(priv, reg, CORE_SWITCH_CTRL);
+ /* Enable IGMP and MLD high-level protocol snooping support */
+ reg = HL_PRTC_IGMP_RPTLVE_EN | HL_PRTC_IGMP_RPTVLE_FWD_MODE |
+ HL_PRTC_IGMP_QRY_EN | HL_PRTC_IGMP_QRY_FWD_MODE |
+ HL_PRTC_IGMP_UKN_EN | HL_PRTC_IGMP_UKN_FWD_MODE |
+ HL_PRTC_MLD_RPTDONE_EN | HL_PRTC_MLD_RPTDONE_FWD_MODE |
+ HL_PRTC_MLD_QRY_EN | HL_PRTC_MLD_QRY_FWD_MODE;
+ b53_write32(priv->dev, B53_MGMT_PAGE, B53_HL_PRTC_CTRL, reg);
/* Configure Traffic Class to QoS mapping, allow each priority to map
* to a different queue number
@@ -75,10 +75,26 @@ static void bcm_sf2_imp_setup(struct dsa_switch *ds, int port)
b53_brcm_hdr_setup(ds, port);
+ /* Set IMP0 or IMP1 port to be managed port, enable BPDU */
+ reg = core_readl(priv, CORE_GMNCFGCFG);
+ reg &= ~(FRM_MGNP_MASK << FRM_MGNP_SHIFT);
+ if (port == core_readl(priv, CORE_IMP0_PRT_ID))
+ reg |= FRM_MNGP_IMP0 << FRM_MGNP_SHIFT;
+ if (port == core_readl(priv, CORE_IMP1_PRT_ID))
+ reg |= FRM_MGNP_IMP_DUAL << FRM_MGNP_SHIFT;
+ reg |= RXBPDU_EN;
+ core_writel(priv, reg, CORE_GMNCFGCFG);
+
/* Force link status for IMP port */
reg = core_readl(priv, offset);
reg |= (MII_SW_OR | LINK_STS);
core_writel(priv, reg, offset);
+
+ /* Enable Broadcast, Unicast forwarding to IMP port */
+ reg = core_readl(priv, CORE_IMP_CTL);
+ reg |= (RX_BCST_EN | RX_UCST_EN);
+ reg &= ~(RX_DIS | TX_DIS);
+ core_writel(priv, reg, CORE_IMP_CTL);
}
static void bcm_sf2_gphy_enable_set(struct dsa_switch *ds, bool enable)
@@ -166,10 +182,8 @@ static int bcm_sf2_port_setup(struct dsa_switch *ds, int port,
reg &= ~P_TXQ_PSM_VDD(port);
core_writel(priv, reg, CORE_MEM_PSM_VDD_CTRL);
- /* Enable learning */
- reg = core_readl(priv, CORE_DIS_LEARN);
- reg &= ~BIT(port);
- core_writel(priv, reg, CORE_DIS_LEARN);
+ /* Configure port for learning */
+ b53_port_learn_setup(ds, port);
/* Enable Broadcom tags for that port if requested */
if (priv->brcm_tag_mask & BIT(port))
@@ -683,6 +697,7 @@ static int bcm_sf2_sw_suspend(struct dsa_switch *ds)
{
struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
unsigned int port;
+ u32 reg;
bcm_sf2_intr_disable(priv);
@@ -695,6 +710,13 @@ static int bcm_sf2_sw_suspend(struct dsa_switch *ds)
bcm_sf2_port_disable(ds, port, NULL);
}
+ /* Disable management mode since we won't be able to
+ * perform any tasks while being suspended.
+ */
+ reg = core_readl(priv, CORE_SWMODE);
+ reg &= ~SW_FWDG_MODE;
+ core_writel(priv, reg, CORE_SWMODE);
+
return 0;
}
@@ -930,6 +952,10 @@ static const struct dsa_switch_ops bcm_sf2_ops = {
.set_rxnfc = bcm_sf2_set_rxnfc,
.port_mirror_add = b53_mirror_add,
.port_mirror_del = b53_mirror_del,
+ .port_multicast_toggle = b53_multicast_toggle,
+ .port_mdb_prepare = b53_mdb_prepare,
+ .port_mdb_add = b53_mdb_add,
+ .port_mdb_del = b53_mdb_del,
};
struct bcm_sf2_of_data {
diff --git a/drivers/net/dsa/bcm_sf2_regs.h b/drivers/net/dsa/bcm_sf2_regs.h
index 0a1e530d52b7..211db9a2e9e9 100644
--- a/drivers/net/dsa/bcm_sf2_regs.h
+++ b/drivers/net/dsa/bcm_sf2_regs.h
@@ -222,8 +222,13 @@ enum bcm_sf2_reg_offs {
#define CORE_GMNCFGCFG 0x0800
#define RST_MIB_CNT (1 << 0)
#define RXBPDU_EN (1 << 1)
+#define FRM_MGNP_SHIFT 6
+#define FRM_MGNP_MASK 0x3
+#define FRM_MNGP_IMP0 2
+#define FRM_MGNP_IMP_DUAL 3
#define CORE_IMP0_PRT_ID 0x0804
+#define CORE_IMP1_PRT_ID 0x0808
#define CORE_RST_MIB_CNT_EN 0x0950
--
2.17.1
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