From: Florian Fainelli Date: Mon, 30 Jan 2017 17:48:41 +0000 (-0800) Subject: net: dsa: bcm_sf2: Configure traffic classes to queue mapping X-Git-Tag: v4.14-rc1~1463^2~286^2~2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e1b9147cbdb84cae017f450b34781f4cfc790095;p=platform%2Fkernel%2Flinux-rpi.git net: dsa: bcm_sf2: Configure traffic classes to queue mapping 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 Signed-off-by: David S. Miller --- diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c index 8eecfd2..637072d 100644 --- a/drivers/net/dsa/bcm_sf2.c +++ b/drivers/net/dsa/bcm_sf2.c @@ -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)); diff --git a/drivers/net/dsa/bcm_sf2_regs.h b/drivers/net/dsa/bcm_sf2_regs.h index 3b33b80..6b63c00 100644 --- a/drivers/net/dsa/bcm_sf2_regs.h +++ b/drivers/net/dsa/bcm_sf2_regs.h @@ -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