redonkable/alistair23-linux
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net: dsa: bcm_sf2: Configure traffic classes to queue mapping

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By default, all traffic goes to queue 0, re-configure the traffic
classes to quality of service mapping such that priority X maps to queue
X, where X is from 0 through 7.

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 2017-01-30 09:48:41 -08:00 committed by David S. Miller
parent bf9f26485d
commit e1b9147cbd
2 changed files with 13 additions and 0 deletions
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9
drivers/net/dsa/bcm_sf2.c
View file

@ -229,6 +229,7 @@ static int bcm_sf2_port_setup(struct dsa_switch *ds, int port,
{
struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
s8 cpu_port = ds->dst[ds->index].cpu_port;
unsigned int i;
u32 reg;
/* Clear the memory power down */
@ -240,6 +241,14 @@ static int bcm_sf2_port_setup(struct dsa_switch *ds, int port,
if (priv->brcm_tag_mask & BIT(port))
bcm_sf2_brcm_hdr_setup(priv, port);
/* Configure Traffic Class to QoS mapping, allow each priority to map
* to a different queue number
*/
reg = core_readl(priv, CORE_PORT_TC2_QOS_MAP_PORT(port));
for (i = 0; i < 8; i++)
reg |= i << (PRT_TO_QID_SHIFT * i);
core_writel(priv, reg, CORE_PORT_TC2_QOS_MAP_PORT(port));
/* Clear the Rx and Tx disable bits and set to no spanning tree */
core_writel(priv, 0, CORE_G_PCTL_PORT(port));

4
drivers/net/dsa/bcm_sf2_regs.h
View file

@ -238,6 +238,10 @@ enum bcm_sf2_reg_offs {
#define P_TXQ_PSM_VDD(x) (P_TXQ_PSM_VDD_MASK << \
((x) * P_TXQ_PSM_VDD_SHIFT))
#define CORE_PORT_TC2_QOS_MAP_PORT(x) (0xc1c0 + ((x) * 0x10))
#define PRT_TO_QID_MASK 0x3
#define PRT_TO_QID_SHIFT 3
#define CORE_PORT_VLAN_CTL_PORT(x) (0xc400 + ((x) * 0x8))
#define PORT_VLAN_CTRL_MASK 0x1ff