Merge branch 'dsa-b53-Support-prepended-Broadcom-tags'
Florian Fainelli says: ==================== net: dsa: b53: Support prepended Broadcom tags This patch series adds support for prepended 4-bytes Broadcom tags that we already support. This type of tag will typically be used when interfaced to a SoC like BCM58xx (NorthStar Plus) which supports a Flow Accelerator (WIP). In that case, we need to support a slightly different tagging format. The first patch does a bit of re-factoring and passes a port index to the get_tag_protocol() function since at least two different drivers need that type of information (mt7530, b53) to support tagging or not. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
commit
aef1e0d5dd
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@ -2,6 +2,7 @@ menuconfig B53
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tristate "Broadcom BCM53xx managed switch support"
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tristate "Broadcom BCM53xx managed switch support"
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depends on NET_DSA
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depends on NET_DSA
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select NET_DSA_TAG_BRCM
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select NET_DSA_TAG_BRCM
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select NET_DSA_TAG_BRCM_PREPEND
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help
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help
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This driver adds support for Broadcom managed switch chips. It supports
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This driver adds support for Broadcom managed switch chips. It supports
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BCM5325E, BCM5365, BCM539x, BCM53115 and BCM53125 as well as BCM63XX
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BCM5325E, BCM5365, BCM539x, BCM53115 and BCM53125 as well as BCM63XX
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@ -541,7 +541,8 @@ EXPORT_SYMBOL(b53_disable_port);
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void b53_brcm_hdr_setup(struct dsa_switch *ds, int port)
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void b53_brcm_hdr_setup(struct dsa_switch *ds, int port)
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{
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{
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bool tag_en = !!(ds->ops->get_tag_protocol(ds) == DSA_TAG_PROTO_BRCM);
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bool tag_en = !(ds->ops->get_tag_protocol(ds, port) ==
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DSA_TAG_PROTO_NONE);
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struct b53_device *dev = ds->priv;
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struct b53_device *dev = ds->priv;
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u8 hdr_ctl, val;
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u8 hdr_ctl, val;
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u16 reg;
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u16 reg;
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@ -1478,41 +1479,40 @@ void b53_br_fast_age(struct dsa_switch *ds, int port)
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}
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}
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EXPORT_SYMBOL(b53_br_fast_age);
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EXPORT_SYMBOL(b53_br_fast_age);
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static bool b53_can_enable_brcm_tags(struct dsa_switch *ds)
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static bool b53_can_enable_brcm_tags(struct dsa_switch *ds, int port)
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{
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{
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unsigned int brcm_tag_mask;
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unsigned int i;
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/* Broadcom switches will accept enabling Broadcom tags on the
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/* Broadcom switches will accept enabling Broadcom tags on the
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* following ports: 5, 7 and 8, any other port is not supported
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* following ports: 5, 7 and 8, any other port is not supported
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*/
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*/
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brcm_tag_mask = BIT(B53_CPU_PORT_25) | BIT(7) | BIT(B53_CPU_PORT);
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switch (port) {
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case B53_CPU_PORT_25:
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for (i = 0; i < ds->num_ports; i++) {
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case 7:
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if (dsa_is_cpu_port(ds, i)) {
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case B53_CPU_PORT:
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if (!(BIT(i) & brcm_tag_mask)) {
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return true;
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dev_warn(ds->dev,
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"Port %d is not Broadcom tag capable\n",
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i);
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return false;
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}
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}
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}
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}
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return true;
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dev_warn(ds->dev, "Port %d is not Broadcom tag capable\n", port);
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return false;
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}
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}
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static enum dsa_tag_protocol b53_get_tag_protocol(struct dsa_switch *ds)
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static enum dsa_tag_protocol b53_get_tag_protocol(struct dsa_switch *ds,
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int port)
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{
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{
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struct b53_device *dev = ds->priv;
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struct b53_device *dev = ds->priv;
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/* Older models support a different tag format that we do not
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/* Older models support a different tag format that we do not
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* support in net/dsa/tag_brcm.c yet.
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* support in net/dsa/tag_brcm.c yet.
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*/
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*/
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if (is5325(dev) || is5365(dev) || !b53_can_enable_brcm_tags(ds))
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if (is5325(dev) || is5365(dev) || !b53_can_enable_brcm_tags(ds, port))
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return DSA_TAG_PROTO_NONE;
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return DSA_TAG_PROTO_NONE;
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else
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return DSA_TAG_PROTO_BRCM;
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/* Broadcom BCM58xx chips have a flow accelerator on Port 8
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* which requires us to use the prepended Broadcom tag type
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*/
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if (dev->chip_id == BCM58XX_DEVICE_ID && port == B53_CPU_PORT)
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return DSA_TAG_PROTO_BRCM_PREPEND;
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return DSA_TAG_PROTO_BRCM;
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}
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}
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int b53_mirror_add(struct dsa_switch *ds, int port,
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int b53_mirror_add(struct dsa_switch *ds, int port,
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@ -35,7 +35,8 @@
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#include "b53/b53_priv.h"
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#include "b53/b53_priv.h"
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#include "b53/b53_regs.h"
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#include "b53/b53_regs.h"
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static enum dsa_tag_protocol bcm_sf2_sw_get_tag_protocol(struct dsa_switch *ds)
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static enum dsa_tag_protocol bcm_sf2_sw_get_tag_protocol(struct dsa_switch *ds,
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int port)
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{
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{
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return DSA_TAG_PROTO_BRCM;
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return DSA_TAG_PROTO_BRCM;
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}
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}
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@ -64,7 +64,8 @@ struct dsa_loop_priv {
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static struct phy_device *phydevs[PHY_MAX_ADDR];
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static struct phy_device *phydevs[PHY_MAX_ADDR];
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static enum dsa_tag_protocol dsa_loop_get_protocol(struct dsa_switch *ds)
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static enum dsa_tag_protocol dsa_loop_get_protocol(struct dsa_switch *ds,
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int port)
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{
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{
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dev_dbg(ds->dev, "%s\n", __func__);
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dev_dbg(ds->dev, "%s\n", __func__);
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@ -894,7 +894,8 @@ static int lan9303_check_device(struct lan9303 *chip)
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/* ---------------------------- DSA -----------------------------------*/
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/* ---------------------------- DSA -----------------------------------*/
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static enum dsa_tag_protocol lan9303_get_tag_protocol(struct dsa_switch *ds)
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static enum dsa_tag_protocol lan9303_get_tag_protocol(struct dsa_switch *ds,
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int port)
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{
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{
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return DSA_TAG_PROTO_LAN9303;
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return DSA_TAG_PROTO_LAN9303;
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}
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}
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@ -394,7 +394,8 @@ static int ksz_setup(struct dsa_switch *ds)
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return 0;
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return 0;
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}
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}
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static enum dsa_tag_protocol ksz_get_tag_protocol(struct dsa_switch *ds)
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static enum dsa_tag_protocol ksz_get_tag_protocol(struct dsa_switch *ds,
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int port)
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{
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{
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return DSA_TAG_PROTO_KSZ;
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return DSA_TAG_PROTO_KSZ;
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}
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}
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@ -907,11 +907,11 @@ err:
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}
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}
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static enum dsa_tag_protocol
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static enum dsa_tag_protocol
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mtk_get_tag_protocol(struct dsa_switch *ds)
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mtk_get_tag_protocol(struct dsa_switch *ds, int port)
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{
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{
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struct mt7530_priv *priv = ds->priv;
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struct mt7530_priv *priv = ds->priv;
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if (!dsa_is_cpu_port(ds, MT7530_CPU_PORT)) {
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if (port != MT7530_CPU_PORT) {
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dev_warn(priv->dev,
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dev_warn(priv->dev,
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"port not matched with tagging CPU port\n");
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"port not matched with tagging CPU port\n");
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return DSA_TAG_PROTO_NONE;
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return DSA_TAG_PROTO_NONE;
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@ -70,7 +70,8 @@ static const char *mv88e6060_get_name(struct mii_bus *bus, int sw_addr)
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return NULL;
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return NULL;
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}
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}
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static enum dsa_tag_protocol mv88e6060_get_tag_protocol(struct dsa_switch *ds)
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static enum dsa_tag_protocol mv88e6060_get_tag_protocol(struct dsa_switch *ds,
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int port)
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{
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{
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return DSA_TAG_PROTO_TRAILER;
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return DSA_TAG_PROTO_TRAILER;
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}
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}
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@ -3731,7 +3731,8 @@ static int mv88e6xxx_smi_init(struct mv88e6xxx_chip *chip,
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return 0;
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return 0;
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}
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}
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static enum dsa_tag_protocol mv88e6xxx_get_tag_protocol(struct dsa_switch *ds)
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static enum dsa_tag_protocol mv88e6xxx_get_tag_protocol(struct dsa_switch *ds,
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int port)
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{
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{
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struct mv88e6xxx_chip *chip = ds->priv;
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struct mv88e6xxx_chip *chip = ds->priv;
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@ -823,7 +823,7 @@ qca8k_port_fdb_dump(struct dsa_switch *ds, int port,
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}
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}
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static enum dsa_tag_protocol
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static enum dsa_tag_protocol
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qca8k_get_tag_protocol(struct dsa_switch *ds)
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qca8k_get_tag_protocol(struct dsa_switch *ds, int port)
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{
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{
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return DSA_TAG_PROTO_QCA;
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return DSA_TAG_PROTO_QCA;
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}
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}
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@ -29,6 +29,7 @@ struct fixed_phy_status;
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enum dsa_tag_protocol {
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enum dsa_tag_protocol {
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DSA_TAG_PROTO_NONE = 0,
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DSA_TAG_PROTO_NONE = 0,
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DSA_TAG_PROTO_BRCM,
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DSA_TAG_PROTO_BRCM,
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DSA_TAG_PROTO_BRCM_PREPEND,
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DSA_TAG_PROTO_DSA,
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DSA_TAG_PROTO_DSA,
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DSA_TAG_PROTO_EDSA,
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DSA_TAG_PROTO_EDSA,
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DSA_TAG_PROTO_KSZ,
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DSA_TAG_PROTO_KSZ,
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@ -321,7 +322,8 @@ struct dsa_switch_ops {
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struct device *host_dev, int sw_addr,
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struct device *host_dev, int sw_addr,
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void **priv);
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void **priv);
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enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds);
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enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds,
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int port);
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int (*setup)(struct dsa_switch *ds);
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int (*setup)(struct dsa_switch *ds);
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u32 (*get_phy_flags)(struct dsa_switch *ds, int port);
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u32 (*get_phy_flags)(struct dsa_switch *ds, int port);
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@ -19,6 +19,9 @@ if NET_DSA
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config NET_DSA_TAG_BRCM
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config NET_DSA_TAG_BRCM
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bool
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bool
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config NET_DSA_TAG_BRCM_PREPEND
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bool
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config NET_DSA_TAG_DSA
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config NET_DSA_TAG_DSA
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bool
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bool
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@ -5,6 +5,7 @@ dsa_core-y += dsa.o dsa2.o legacy.o master.o port.o slave.o switch.o
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# tagging formats
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# tagging formats
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dsa_core-$(CONFIG_NET_DSA_TAG_BRCM) += tag_brcm.o
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dsa_core-$(CONFIG_NET_DSA_TAG_BRCM) += tag_brcm.o
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dsa_core-$(CONFIG_NET_DSA_TAG_BRCM_PREPEND) += tag_brcm.o
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dsa_core-$(CONFIG_NET_DSA_TAG_DSA) += tag_dsa.o
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dsa_core-$(CONFIG_NET_DSA_TAG_DSA) += tag_dsa.o
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dsa_core-$(CONFIG_NET_DSA_TAG_EDSA) += tag_edsa.o
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dsa_core-$(CONFIG_NET_DSA_TAG_EDSA) += tag_edsa.o
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dsa_core-$(CONFIG_NET_DSA_TAG_KSZ) += tag_ksz.o
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dsa_core-$(CONFIG_NET_DSA_TAG_KSZ) += tag_ksz.o
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|
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@ -44,6 +44,9 @@ const struct dsa_device_ops *dsa_device_ops[DSA_TAG_LAST] = {
|
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#ifdef CONFIG_NET_DSA_TAG_BRCM
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#ifdef CONFIG_NET_DSA_TAG_BRCM
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[DSA_TAG_PROTO_BRCM] = &brcm_netdev_ops,
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[DSA_TAG_PROTO_BRCM] = &brcm_netdev_ops,
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#endif
|
#endif
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||||||
|
#ifdef CONFIG_NET_DSA_TAG_BRCM_PREPEND
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||||||
|
[DSA_TAG_PROTO_BRCM_PREPEND] = &brcm_prepend_netdev_ops,
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||||||
|
#endif
|
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#ifdef CONFIG_NET_DSA_TAG_DSA
|
#ifdef CONFIG_NET_DSA_TAG_DSA
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[DSA_TAG_PROTO_DSA] = &dsa_netdev_ops,
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[DSA_TAG_PROTO_DSA] = &dsa_netdev_ops,
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#endif
|
#endif
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||||||
|
|
|
@ -539,7 +539,7 @@ static int dsa_port_parse_cpu(struct dsa_port *dp, struct net_device *master)
|
||||||
const struct dsa_device_ops *tag_ops;
|
const struct dsa_device_ops *tag_ops;
|
||||||
enum dsa_tag_protocol tag_protocol;
|
enum dsa_tag_protocol tag_protocol;
|
||||||
|
|
||||||
tag_protocol = ds->ops->get_tag_protocol(ds);
|
tag_protocol = ds->ops->get_tag_protocol(ds, dp->index);
|
||||||
tag_ops = dsa_resolve_tag_protocol(tag_protocol);
|
tag_ops = dsa_resolve_tag_protocol(tag_protocol);
|
||||||
if (IS_ERR(tag_ops)) {
|
if (IS_ERR(tag_ops)) {
|
||||||
dev_warn(ds->dev, "No tagger for this switch\n");
|
dev_warn(ds->dev, "No tagger for this switch\n");
|
||||||
|
|
|
@ -191,6 +191,7 @@ void dsa_switch_unregister_notifier(struct dsa_switch *ds);
|
||||||
|
|
||||||
/* tag_brcm.c */
|
/* tag_brcm.c */
|
||||||
extern const struct dsa_device_ops brcm_netdev_ops;
|
extern const struct dsa_device_ops brcm_netdev_ops;
|
||||||
|
extern const struct dsa_device_ops brcm_prepend_netdev_ops;
|
||||||
|
|
||||||
/* tag_dsa.c */
|
/* tag_dsa.c */
|
||||||
extern const struct dsa_device_ops dsa_netdev_ops;
|
extern const struct dsa_device_ops dsa_netdev_ops;
|
||||||
|
|
|
@ -151,7 +151,7 @@ static int dsa_switch_setup_one(struct dsa_switch *ds,
|
||||||
const struct dsa_device_ops *tag_ops;
|
const struct dsa_device_ops *tag_ops;
|
||||||
enum dsa_tag_protocol tag_protocol;
|
enum dsa_tag_protocol tag_protocol;
|
||||||
|
|
||||||
tag_protocol = ops->get_tag_protocol(ds);
|
tag_protocol = ops->get_tag_protocol(ds, dst->cpu_dp->index);
|
||||||
tag_ops = dsa_resolve_tag_protocol(tag_protocol);
|
tag_ops = dsa_resolve_tag_protocol(tag_protocol);
|
||||||
if (IS_ERR(tag_ops))
|
if (IS_ERR(tag_ops))
|
||||||
return PTR_ERR(tag_ops);
|
return PTR_ERR(tag_ops);
|
||||||
|
|
|
@ -59,7 +59,9 @@
|
||||||
#define BRCM_EG_TC_MASK 0x7
|
#define BRCM_EG_TC_MASK 0x7
|
||||||
#define BRCM_EG_PID_MASK 0x1f
|
#define BRCM_EG_PID_MASK 0x1f
|
||||||
|
|
||||||
static struct sk_buff *brcm_tag_xmit(struct sk_buff *skb, struct net_device *dev)
|
static struct sk_buff *brcm_tag_xmit_ll(struct sk_buff *skb,
|
||||||
|
struct net_device *dev,
|
||||||
|
unsigned int offset)
|
||||||
{
|
{
|
||||||
struct dsa_port *dp = dsa_slave_to_port(dev);
|
struct dsa_port *dp = dsa_slave_to_port(dev);
|
||||||
u16 queue = skb_get_queue_mapping(skb);
|
u16 queue = skb_get_queue_mapping(skb);
|
||||||
|
@ -70,10 +72,10 @@ static struct sk_buff *brcm_tag_xmit(struct sk_buff *skb, struct net_device *dev
|
||||||
|
|
||||||
skb_push(skb, BRCM_TAG_LEN);
|
skb_push(skb, BRCM_TAG_LEN);
|
||||||
|
|
||||||
memmove(skb->data, skb->data + BRCM_TAG_LEN, 2 * ETH_ALEN);
|
if (offset)
|
||||||
|
memmove(skb->data, skb->data + BRCM_TAG_LEN, offset);
|
||||||
|
|
||||||
/* Build the tag after the MAC Source Address */
|
brcm_tag = skb->data + offset;
|
||||||
brcm_tag = skb->data + 2 * ETH_ALEN;
|
|
||||||
|
|
||||||
/* Set the ingress opcode, traffic class, tag enforcment is
|
/* Set the ingress opcode, traffic class, tag enforcment is
|
||||||
* deprecated
|
* deprecated
|
||||||
|
@ -94,8 +96,10 @@ static struct sk_buff *brcm_tag_xmit(struct sk_buff *skb, struct net_device *dev
|
||||||
return skb;
|
return skb;
|
||||||
}
|
}
|
||||||
|
|
||||||
static struct sk_buff *brcm_tag_rcv(struct sk_buff *skb, struct net_device *dev,
|
static struct sk_buff *brcm_tag_rcv_ll(struct sk_buff *skb,
|
||||||
struct packet_type *pt)
|
struct net_device *dev,
|
||||||
|
struct packet_type *pt,
|
||||||
|
unsigned int offset)
|
||||||
{
|
{
|
||||||
int source_port;
|
int source_port;
|
||||||
u8 *brcm_tag;
|
u8 *brcm_tag;
|
||||||
|
@ -103,8 +107,7 @@ static struct sk_buff *brcm_tag_rcv(struct sk_buff *skb, struct net_device *dev,
|
||||||
if (unlikely(!pskb_may_pull(skb, BRCM_TAG_LEN)))
|
if (unlikely(!pskb_may_pull(skb, BRCM_TAG_LEN)))
|
||||||
return NULL;
|
return NULL;
|
||||||
|
|
||||||
/* skb->data points to the EtherType, the tag is right before it */
|
brcm_tag = skb->data - offset;
|
||||||
brcm_tag = skb->data - 2;
|
|
||||||
|
|
||||||
/* The opcode should never be different than 0b000 */
|
/* The opcode should never be different than 0b000 */
|
||||||
if (unlikely((brcm_tag[0] >> BRCM_OPCODE_SHIFT) & BRCM_OPCODE_MASK))
|
if (unlikely((brcm_tag[0] >> BRCM_OPCODE_SHIFT) & BRCM_OPCODE_MASK))
|
||||||
|
@ -126,15 +129,60 @@ static struct sk_buff *brcm_tag_rcv(struct sk_buff *skb, struct net_device *dev,
|
||||||
/* Remove Broadcom tag and update checksum */
|
/* Remove Broadcom tag and update checksum */
|
||||||
skb_pull_rcsum(skb, BRCM_TAG_LEN);
|
skb_pull_rcsum(skb, BRCM_TAG_LEN);
|
||||||
|
|
||||||
|
return skb;
|
||||||
|
}
|
||||||
|
|
||||||
|
#ifdef CONFIG_NET_DSA_TAG_BRCM
|
||||||
|
static struct sk_buff *brcm_tag_xmit(struct sk_buff *skb,
|
||||||
|
struct net_device *dev)
|
||||||
|
{
|
||||||
|
/* Build the tag after the MAC Source Address */
|
||||||
|
return brcm_tag_xmit_ll(skb, dev, 2 * ETH_ALEN);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static struct sk_buff *brcm_tag_rcv(struct sk_buff *skb, struct net_device *dev,
|
||||||
|
struct packet_type *pt)
|
||||||
|
{
|
||||||
|
struct sk_buff *nskb;
|
||||||
|
|
||||||
|
/* skb->data points to the EtherType, the tag is right before it */
|
||||||
|
nskb = brcm_tag_rcv_ll(skb, dev, pt, 2);
|
||||||
|
if (!nskb)
|
||||||
|
return nskb;
|
||||||
|
|
||||||
/* Move the Ethernet DA and SA */
|
/* Move the Ethernet DA and SA */
|
||||||
memmove(skb->data - ETH_HLEN,
|
memmove(nskb->data - ETH_HLEN,
|
||||||
skb->data - ETH_HLEN - BRCM_TAG_LEN,
|
nskb->data - ETH_HLEN - BRCM_TAG_LEN,
|
||||||
2 * ETH_ALEN);
|
2 * ETH_ALEN);
|
||||||
|
|
||||||
return skb;
|
return nskb;
|
||||||
}
|
}
|
||||||
|
|
||||||
const struct dsa_device_ops brcm_netdev_ops = {
|
const struct dsa_device_ops brcm_netdev_ops = {
|
||||||
.xmit = brcm_tag_xmit,
|
.xmit = brcm_tag_xmit,
|
||||||
.rcv = brcm_tag_rcv,
|
.rcv = brcm_tag_rcv,
|
||||||
};
|
};
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifdef CONFIG_NET_DSA_TAG_BRCM_PREPEND
|
||||||
|
static struct sk_buff *brcm_tag_xmit_prepend(struct sk_buff *skb,
|
||||||
|
struct net_device *dev)
|
||||||
|
{
|
||||||
|
/* tag is prepended to the packet */
|
||||||
|
return brcm_tag_xmit_ll(skb, dev, 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct sk_buff *brcm_tag_rcv_prepend(struct sk_buff *skb,
|
||||||
|
struct net_device *dev,
|
||||||
|
struct packet_type *pt)
|
||||||
|
{
|
||||||
|
/* tag is prepended to the packet */
|
||||||
|
return brcm_tag_rcv_ll(skb, dev, pt, ETH_HLEN);
|
||||||
|
}
|
||||||
|
|
||||||
|
const struct dsa_device_ops brcm_prepend_netdev_ops = {
|
||||||
|
.xmit = brcm_tag_xmit_prepend,
|
||||||
|
.rcv = brcm_tag_rcv_prepend,
|
||||||
|
};
|
||||||
|
#endif
|
||||||
|
|
Loading…
Reference in New Issue