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net: dsa: bcm_sf2: Allow looping back CFP rules 

When the source and destination port of a CFP rule match, we must set
the loopback bit enable to allow that, otherwise the frame is discarded.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli 2019-02-06 12:46:00 -08:00 committed by David S. Miller
parent f4ae9c0840
commit db78ed2737
1 changed files with 8 additions and 3 deletions
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11
drivers/net/dsa/bcm_sf2_cfp.c
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@ -213,6 +213,7 @@ static inline unsigned int bcm_sf2_cfp_rule_size(struct bcm_sf2_priv *priv)
static int bcm_sf2_cfp_act_pol_set(struct bcm_sf2_priv *priv,
unsigned int rule_index,
int src_port,
unsigned int port_num,
unsigned int queue_num,
bool fwd_map_change)
@ -230,6 +231,10 @@ static int bcm_sf2_cfp_act_pol_set(struct bcm_sf2_priv *priv,
else
reg = 0;
/* Enable looping back to the original port */
if (src_port == port_num)
reg |= LOOP_BK_EN;
core_writel(priv, reg, CORE_ACT_POL_DATA0);
/* Set classification ID that needs to be put in Broadcom tag */
@ -443,7 +448,7 @@ static int bcm_sf2_cfp_ipv4_rule_set(struct bcm_sf2_priv *priv, int port,
}
/* Insert into Action and policer RAMs now */
ret = bcm_sf2_cfp_act_pol_set(priv, rule_index, port_num,
ret = bcm_sf2_cfp_act_pol_set(priv, rule_index, port, port_num,
queue_num, true);
if (ret)
goto out_err_flow_rule;
@ -733,7 +738,7 @@ static int bcm_sf2_cfp_ipv6_rule_set(struct bcm_sf2_priv *priv, int port,
}
/* Insert into Action and policer RAMs now */
ret = bcm_sf2_cfp_act_pol_set(priv, rule_index[0], port_num,
ret = bcm_sf2_cfp_act_pol_set(priv, rule_index[0], port, port_num,
queue_num, false);
if (ret)
goto out_err_flow_rule;
@ -795,7 +800,7 @@ static int bcm_sf2_cfp_ipv6_rule_set(struct bcm_sf2_priv *priv, int port,
/* Insert into Action and policer RAMs now, set chain ID to
* the one we are chained to
*/
ret = bcm_sf2_cfp_act_pol_set(priv, rule_index[1], port_num,
ret = bcm_sf2_cfp_act_pol_set(priv, rule_index[1], port, port_num,
queue_num, true);
if (ret)
goto out_err_flow_rule;