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author | Codrin Ciubotariu <codrin.ciubotariu@freescale.com> | 2015-07-24 16:55:26 +0300 |
---|---|---|
committer | York Sun <yorksun@freescale.com> | 2015-09-21 08:29:46 -0700 |
commit | 9de059871f8364dd898faf0b6057b8fa69fa2728 (patch) | |
tree | 7453b30c937c3ec1c1d2772bb6a4214b5655e329 /drivers | |
parent | 8756de2824e7c282afca59db3706aa5d473a7067 (diff) | |
download | u-boot-imx-9de059871f8364dd898faf0b6057b8fa69fa2728.zip u-boot-imx-9de059871f8364dd898faf0b6057b8fa69fa2728.tar.gz u-boot-imx-9de059871f8364dd898faf0b6057b8fa69fa2728.tar.bz2 |
drivers/net/vsc9953: Add default configuration for VSC9953 L2 Switch
At startup, the default configuration should be:
- enable HW learning on all ports (HW default);
- all ports are VLAN aware;
- all ports are members of VLAN 1;
- all ports have Port-based VLAN 1;
- on all ports, the switch is allowed to remove
maximum one VLAN tag,
- on egress, the switch should add a VLAN tag if the
frame is classified to a different VLAN than the port's
Port-based VLAN;
Signed-off-by: Johnson Leung <johnson.leung@freescale.com>
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@freescale.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/vsc9953.c | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/drivers/net/vsc9953.c b/drivers/net/vsc9953.c index 2e8eec4..59e0fab 100644 --- a/drivers/net/vsc9953.c +++ b/drivers/net/vsc9953.c @@ -10,6 +10,7 @@ #include <asm/fsl_serdes.h> #include <fm_eth.h> #include <fsl_memac.h> +#include <bitfield.h> #include <errno.h> #include <malloc.h> #include <vsc9953.h> @@ -178,6 +179,256 @@ static int vsc9953_port_init(int port_no) return 0; } +static int vsc9953_vlan_table_poll_idle(void) +{ + struct vsc9953_analyzer *l2ana_reg; + int timeout; + + l2ana_reg = (struct vsc9953_analyzer *)(VSC9953_OFFSET + + VSC9953_ANA_OFFSET); + + timeout = 50000; + while (((in_le32(&l2ana_reg->ana_tables.vlan_access) & + VSC9953_VLAN_CMD_MASK) != VSC9953_VLAN_CMD_IDLE) && --timeout) + udelay(1); + + return timeout ? 0 : -EBUSY; +} + +/* vlan table set/clear all membership of vid */ +static void vsc9953_vlan_table_membership_all_set(int vid, int set_member) +{ + uint val; + struct vsc9953_analyzer *l2ana_reg; + + l2ana_reg = (struct vsc9953_analyzer *)(VSC9953_OFFSET + + VSC9953_ANA_OFFSET); + + if (vsc9953_vlan_table_poll_idle() < 0) { + debug("VLAN table timeout\n"); + return; + } + + /* read current vlan configuration */ + val = in_le32(&l2ana_reg->ana_tables.vlan_tidx); + out_le32(&l2ana_reg->ana_tables.vlan_tidx, + bitfield_replace_by_mask(val, VSC9953_ANA_TBL_VID_MASK, vid)); + + clrsetbits_le32(&l2ana_reg->ana_tables.vlan_access, + VSC9953_VLAN_CMD_MASK, VSC9953_VLAN_CMD_READ); + + if (vsc9953_vlan_table_poll_idle() < 0) { + debug("VLAN table timeout\n"); + return; + } + + val = in_le32(&l2ana_reg->ana_tables.vlan_tidx); + out_le32(&l2ana_reg->ana_tables.vlan_tidx, + bitfield_replace_by_mask(val, VSC9953_ANA_TBL_VID_MASK, vid)); + + clrsetbits_le32(&l2ana_reg->ana_tables.vlan_access, + VSC9953_VLAN_PORT_MASK | VSC9953_VLAN_CMD_MASK, + VSC9953_VLAN_CMD_WRITE | + (set_member ? VSC9953_VLAN_PORT_MASK : 0)); +} + +/* Set PVID for a VSC9953 port */ +static void vsc9953_port_vlan_pvid_set(int port_no, int pvid) +{ + uint val; + struct vsc9953_analyzer *l2ana_reg; + struct vsc9953_rew_reg *l2rew_reg; + + /* Administrative down */ + if (!vsc9953_l2sw.port[port_no].enabled) { + printf("Port %d is administrative down\n", port_no); + return; + } + + l2ana_reg = (struct vsc9953_analyzer *)(VSC9953_OFFSET + + VSC9953_ANA_OFFSET); + l2rew_reg = (struct vsc9953_rew_reg *)(VSC9953_OFFSET + + VSC9953_REW_OFFSET); + + /* Set PVID on ingress */ + val = in_le32(&l2ana_reg->port[port_no].vlan_cfg); + val = bitfield_replace_by_mask(val, VSC9953_VLAN_CFG_VID_MASK, pvid); + out_le32(&l2ana_reg->port[port_no].vlan_cfg, val); + + /* Set PVID on egress */ + val = in_le32(&l2rew_reg->port[port_no].port_vlan_cfg); + val = bitfield_replace_by_mask(val, VSC9953_PORT_VLAN_CFG_VID_MASK, + pvid); + out_le32(&l2rew_reg->port[port_no].port_vlan_cfg, val); +} + +static void vsc9953_port_all_vlan_pvid_set(int pvid) +{ + int i; + + for (i = 0; i < VSC9953_MAX_PORTS; i++) + vsc9953_port_vlan_pvid_set(i, pvid); +} + +/* Enable/disable vlan aware of a VSC9953 port */ +static void vsc9953_port_vlan_aware_set(int port_no, int enabled) +{ + struct vsc9953_analyzer *l2ana_reg; + + /* Administrative down */ + if (!vsc9953_l2sw.port[port_no].enabled) { + printf("Port %d is administrative down\n", port_no); + return; + } + + l2ana_reg = (struct vsc9953_analyzer *)(VSC9953_OFFSET + + VSC9953_ANA_OFFSET); + + if (enabled) + setbits_le32(&l2ana_reg->port[port_no].vlan_cfg, + VSC9953_VLAN_CFG_AWARE_ENA); + else + clrbits_le32(&l2ana_reg->port[port_no].vlan_cfg, + VSC9953_VLAN_CFG_AWARE_ENA); +} + +/* Set all VSC9953 ports' vlan aware */ +static void vsc9953_port_all_vlan_aware_set(int enabled) +{ + int i; + + for (i = 0; i < VSC9953_MAX_PORTS; i++) + vsc9953_port_vlan_aware_set(i, enabled); +} + +/* Enable/disable vlan pop count of a VSC9953 port */ +static void vsc9953_port_vlan_popcnt_set(int port_no, int popcnt) +{ + uint val; + struct vsc9953_analyzer *l2ana_reg; + + /* Administrative down */ + if (!vsc9953_l2sw.port[port_no].enabled) { + printf("Port %d is administrative down\n", port_no); + return; + } + + if (popcnt > 3 || popcnt < 0) { + printf("Invalid pop count value: %d\n", port_no); + return; + } + + l2ana_reg = (struct vsc9953_analyzer *)(VSC9953_OFFSET + + VSC9953_ANA_OFFSET); + + val = in_le32(&l2ana_reg->port[port_no].vlan_cfg); + val = bitfield_replace_by_mask(val, VSC9953_VLAN_CFG_POP_CNT_MASK, + popcnt); + out_le32(&l2ana_reg->port[port_no].vlan_cfg, val); +} + +/* Set all VSC9953 ports' pop count */ +static void vsc9953_port_all_vlan_poncnt_set(int popcnt) +{ + int i; + + for (i = 0; i < VSC9953_MAX_PORTS; i++) + vsc9953_port_vlan_popcnt_set(i, popcnt); +} + +/* Enable/disable learning for frames dropped due to ingress filtering */ +static void vsc9953_vlan_ingr_fltr_learn_drop(int enable) +{ + struct vsc9953_analyzer *l2ana_reg; + + l2ana_reg = (struct vsc9953_analyzer *)(VSC9953_OFFSET + + VSC9953_ANA_OFFSET); + + if (enable) + setbits_le32(&l2ana_reg->ana.adv_learn, VSC9953_VLAN_CHK); + else + clrbits_le32(&l2ana_reg->ana.adv_learn, VSC9953_VLAN_CHK); +} + +/* Egress untag modes of a VSC9953 port */ +enum egress_untag_mode { + EGRESS_UNTAG_ALL = 0, + EGRESS_UNTAG_PVID_AND_ZERO, + EGRESS_UNTAG_ZERO, + EGRESS_UNTAG_NONE, +}; + +static void vsc9953_port_vlan_egr_untag_set(int port_no, + enum egress_untag_mode mode) +{ + struct vsc9953_rew_reg *l2rew_reg; + + /* Administrative down */ + if (!vsc9953_l2sw.port[port_no].enabled) { + printf("Port %d is administrative down\n", port_no); + return; + } + + l2rew_reg = (struct vsc9953_rew_reg *)(VSC9953_OFFSET + + VSC9953_REW_OFFSET); + + switch (mode) { + case EGRESS_UNTAG_ALL: + clrsetbits_le32(&l2rew_reg->port[port_no].port_tag_cfg, + VSC9953_TAG_CFG_MASK, VSC9953_TAG_CFG_NONE); + break; + case EGRESS_UNTAG_PVID_AND_ZERO: + clrsetbits_le32(&l2rew_reg->port[port_no].port_tag_cfg, + VSC9953_TAG_CFG_MASK, + VSC9953_TAG_CFG_ALL_BUT_PVID_ZERO); + break; + case EGRESS_UNTAG_ZERO: + clrsetbits_le32(&l2rew_reg->port[port_no].port_tag_cfg, + VSC9953_TAG_CFG_MASK, + VSC9953_TAG_CFG_ALL_BUT_ZERO); + break; + case EGRESS_UNTAG_NONE: + clrsetbits_le32(&l2rew_reg->port[port_no].port_tag_cfg, + VSC9953_TAG_CFG_MASK, VSC9953_TAG_CFG_ALL); + break; + default: + printf("Unknown untag mode for port %d\n", port_no); + } +} + +static void vsc9953_port_all_vlan_egress_untagged_set( + enum egress_untag_mode mode) +{ + int i; + + for (i = 0; i < VSC9953_MAX_PORTS; i++) + vsc9953_port_vlan_egr_untag_set(i, mode); +} + +/***************************************************************************** +At startup, the default configuration would be: + - HW learning enabled on all ports; (HW default) + - All ports are in VLAN 1; + - All ports are VLAN aware; + - All ports have POP_COUNT 1; + - All ports have PVID 1; + - All ports have TPID 0x8100; (HW default) + - All ports tag frames classified to all VLANs that are not PVID; +*****************************************************************************/ +void vsc9953_default_configuration(void) +{ + int i; + + for (i = 0; i < VSC9953_MAX_VLAN; i++) + vsc9953_vlan_table_membership_all_set(i, 0); + vsc9953_port_all_vlan_aware_set(1); + vsc9953_port_all_vlan_pvid_set(1); + vsc9953_port_all_vlan_poncnt_set(1); + vsc9953_vlan_table_membership_all_set(1, 1); + vsc9953_vlan_ingr_fltr_learn_drop(1); + vsc9953_port_all_vlan_egress_untagged_set(EGRESS_UNTAG_PVID_AND_ZERO); +} + void vsc9953_init(bd_t *bis) { u32 i; @@ -310,6 +561,8 @@ void vsc9953_init(bd_t *bis) } } + vsc9953_default_configuration(); + printf("VSC9953 L2 switch initialized\n"); return; } |