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net: ethernet: mediatek: ppe: assign per-port queues for offloaded traffic

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Keeps traffic sent to the switch within link speed limits

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20221116080734.44013-7-nbd@nbd.name
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Felix Fietkau 2022-11-16 09:07:34 +01:00 committed by Jakub Kicinski
parent d169ecb536
commit 8bd8dcc5e4
3 changed files with 31 additions and 3 deletions
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18
drivers/net/ethernet/mediatek/mtk_ppe.c
View File

@ -399,6 +399,24 @@ int mtk_foe_entry_set_wdma(struct mtk_eth *eth, struct mtk_foe_entry *entry,
return 0;
}
int mtk_foe_entry_set_queue(struct mtk_eth *eth, struct mtk_foe_entry *entry,
unsigned int queue)
{
u32 *ib2 = mtk_foe_entry_ib2(eth, entry);
if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) {
*ib2 &= ~MTK_FOE_IB2_QID_V2;
*ib2 |= FIELD_PREP(MTK_FOE_IB2_QID_V2, queue);
*ib2 |= MTK_FOE_IB2_PSE_QOS_V2;
} else {
*ib2 &= ~MTK_FOE_IB2_QID;
*ib2 |= FIELD_PREP(MTK_FOE_IB2_QID, queue);
*ib2 |= MTK_FOE_IB2_PSE_QOS;
}
return 0;
}
static bool
mtk_flow_entry_match(struct mtk_eth *eth, struct mtk_flow_entry *entry,
struct mtk_foe_entry *data)

4
drivers/net/ethernet/mediatek/mtk_ppe.h
View File

@ -68,7 +68,9 @@ enum {
#define MTK_FOE_IB2_DSCP GENMASK(31, 24)
/* CONFIG_MEDIATEK_NETSYS_V2 */
#define MTK_FOE_IB2_QID_V2 GENMASK(6, 0)
#define MTK_FOE_IB2_PORT_MG_V2 BIT(7)
#define MTK_FOE_IB2_PSE_QOS_V2 BIT(8)
#define MTK_FOE_IB2_DEST_PORT_V2 GENMASK(12, 9)
#define MTK_FOE_IB2_MULTICAST_V2 BIT(13)
#define MTK_FOE_IB2_WDMA_WINFO_V2 BIT(19)
@ -350,6 +352,8 @@ int mtk_foe_entry_set_pppoe(struct mtk_eth *eth, struct mtk_foe_entry *entry,
int sid);
int mtk_foe_entry_set_wdma(struct mtk_eth *eth, struct mtk_foe_entry *entry,
int wdma_idx, int txq, int bss, int wcid);
int mtk_foe_entry_set_queue(struct mtk_eth *eth, struct mtk_foe_entry *entry,
unsigned int queue);
int mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_flow_entry *entry);
void mtk_foe_entry_clear(struct mtk_ppe *ppe, struct mtk_flow_entry *entry);
int mtk_foe_entry_idle_time(struct mtk_ppe *ppe, struct mtk_flow_entry *entry);

12
drivers/net/ethernet/mediatek/mtk_ppe_offload.c
View File

@ -188,7 +188,7 @@ mtk_flow_set_output_device(struct mtk_eth *eth, struct mtk_foe_entry *foe,
int *wed_index)
{
struct mtk_wdma_info info = {};
int pse_port, dsa_port;
int pse_port, dsa_port, queue;
if (mtk_flow_get_wdma_info(dev, dest_mac, &info) == 0) {
mtk_foe_entry_set_wdma(eth, foe, info.wdma_idx, info.queue,
@ -212,8 +212,6 @@ mtk_flow_set_output_device(struct mtk_eth *eth, struct mtk_foe_entry *foe,
}
dsa_port = mtk_flow_get_dsa_port(&dev);
if (dsa_port >= 0)
mtk_foe_entry_set_dsa(eth, foe, dsa_port);
if (dev == eth->netdev[0])
pse_port = 1;
@ -222,6 +220,14 @@ mtk_flow_set_output_device(struct mtk_eth *eth, struct mtk_foe_entry *foe,
else
return -EOPNOTSUPP;
if (dsa_port >= 0) {
mtk_foe_entry_set_dsa(eth, foe, dsa_port);
queue = 3 + dsa_port;
} else {
queue = pse_port - 1;
}
mtk_foe_entry_set_queue(eth, foe, queue);
out:
mtk_foe_entry_set_pse_port(eth, foe, pse_port);