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From e3c27d869fccc1f2b8d0b4cde4763ab223874e8c Mon Sep 17 00:00:00 2001
Message-Id: <e3c27d869fccc1f2b8d0b4cde4763ab223874e8c.1662243796.git.lorenzo@kernel.org>
In-Reply-To: <43a21841ce0175d29f23c34a65ceaaf9dd7eb8b7.1662243796.git.lorenzo@kernel.org>
References: <43a21841ce0175d29f23c34a65ceaaf9dd7eb8b7.1662243796.git.lorenzo@kernel.org>
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Sun, 21 Aug 2022 17:51:17 +0200
Subject: [PATCH net-next 3/4] net: ethernet: mtk_eth_soc: add foe_entry_size
to mtk_eth_soc
Introduce foe_entry_size to mtk_eth_soc data structure since mt7986
relies on a bigger mtk_foe_entry data structure.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 3 +
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 10 ++++
drivers/net/ethernet/mediatek/mtk_ppe.c | 55 +++++++++++--------
drivers/net/ethernet/mediatek/mtk_ppe.h | 2 +-
.../net/ethernet/mediatek/mtk_ppe_debugfs.c | 2 +-
5 files changed, 48 insertions(+), 24 deletions(-)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -4161,6 +4161,7 @@ static const struct mtk_soc_data mt7621_
.required_pctl = false,
.offload_version = 2,
.hash_offset = 2,
+ .foe_entry_size = sizeof(struct mtk_foe_entry),
.txrx = {
.txd_size = sizeof(struct mtk_tx_dma),
.rxd_size = sizeof(struct mtk_rx_dma),
@@ -4180,6 +4181,7 @@ static const struct mtk_soc_data mt7622_
.required_pctl = false,
.offload_version = 2,
.hash_offset = 2,
+ .foe_entry_size = sizeof(struct mtk_foe_entry),
.txrx = {
.txd_size = sizeof(struct mtk_tx_dma),
.rxd_size = sizeof(struct mtk_rx_dma),
@@ -4198,6 +4200,7 @@ static const struct mtk_soc_data mt7623_
.required_pctl = true,
.offload_version = 2,
.hash_offset = 2,
+ .foe_entry_size = sizeof(struct mtk_foe_entry),
.txrx = {
.txd_size = sizeof(struct mtk_tx_dma),
.rxd_size = sizeof(struct mtk_rx_dma),
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -966,6 +966,7 @@ struct mtk_reg_map {
* @required_pctl A bool value to show whether the SoC requires
* the extra setup for those pins used by GMAC.
* @hash_offset Flow table hash offset.
+ * @foe_entry_size Foe table entry size.
* @txd_size Tx DMA descriptor size.
* @rxd_size Rx DMA descriptor size.
* @rx_irq_done_mask Rx irq done register mask.
@@ -981,6 +982,7 @@ struct mtk_soc_data {
bool required_pctl;
u8 offload_version;
u8 hash_offset;
+ u16 foe_entry_size;
netdev_features_t hw_features;
struct {
u32 txd_size;
@@ -1141,6 +1143,14 @@ struct mtk_mac {
/* the struct describing the SoC. these are declared in the soc_xyz.c files */
extern const struct of_device_id of_mtk_match[];
+static inline struct mtk_foe_entry *
+mtk_foe_get_entry(struct mtk_ppe *ppe, u16 hash)
+{
+ const struct mtk_soc_data *soc = ppe->eth->soc;
+
+ return ppe->foe_table + hash * soc->foe_entry_size;
+}
+
/* read the hardware status register */
void mtk_stats_update_mac(struct mtk_mac *mac);
--- a/drivers/net/ethernet/mediatek/mtk_ppe.c
+++ b/drivers/net/ethernet/mediatek/mtk_ppe.c
@@ -410,9 +410,10 @@ __mtk_foe_entry_clear(struct mtk_ppe *pp
hlist_del_init(&entry->list);
if (entry->hash != 0xffff) {
- ppe->foe_table[entry->hash].ib1 &= ~MTK_FOE_IB1_STATE;
- ppe->foe_table[entry->hash].ib1 |= FIELD_PREP(MTK_FOE_IB1_STATE,
- MTK_FOE_STATE_BIND);
+ struct mtk_foe_entry *hwe = mtk_foe_get_entry(ppe, entry->hash);
+
+ hwe->ib1 &= ~MTK_FOE_IB1_STATE;
+ hwe->ib1 |= FIELD_PREP(MTK_FOE_IB1_STATE, MTK_FOE_STATE_BIND);
dma_wmb();
}
entry->hash = 0xffff;
@@ -451,7 +452,7 @@ mtk_flow_entry_update_l2(struct mtk_ppe
int cur_idle;
u32 ib1;
- hwe = &ppe->foe_table[cur->hash];
+ hwe = mtk_foe_get_entry(ppe, cur->hash);
ib1 = READ_ONCE(hwe->ib1);
if (FIELD_GET(MTK_FOE_IB1_STATE, ib1) != MTK_FOE_STATE_BIND) {
@@ -473,8 +474,8 @@ mtk_flow_entry_update_l2(struct mtk_ppe
static void
mtk_flow_entry_update(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
{
+ struct mtk_foe_entry foe = {};
struct mtk_foe_entry *hwe;
- struct mtk_foe_entry foe;
spin_lock_bh(&ppe_lock);
@@ -486,8 +487,8 @@ mtk_flow_entry_update(struct mtk_ppe *pp
if (entry->hash == 0xffff)
goto out;
- hwe = &ppe->foe_table[entry->hash];
- memcpy(&foe, hwe, sizeof(foe));
+ hwe = mtk_foe_get_entry(ppe, entry->hash);
+ memcpy(&foe, hwe, ppe->eth->soc->foe_entry_size);
if (!mtk_flow_entry_match(entry, &foe)) {
entry->hash = 0xffff;
goto out;
@@ -511,8 +512,8 @@ __mtk_foe_entry_commit(struct mtk_ppe *p
entry->ib1 &= ~MTK_FOE_IB1_BIND_TIMESTAMP;
entry->ib1 |= FIELD_PREP(MTK_FOE_IB1_BIND_TIMESTAMP, timestamp);
- hwe = &ppe->foe_table[hash];
- memcpy(&hwe->data, &entry->data, sizeof(hwe->data));
+ hwe = mtk_foe_get_entry(ppe, hash);
+ memcpy(&hwe->data, &entry->data, ppe->eth->soc->foe_entry_size);
wmb();
hwe->ib1 = entry->ib1;
@@ -561,7 +562,7 @@ mtk_foe_entry_commit_subflow(struct mtk_
{
const struct mtk_soc_data *soc = ppe->eth->soc;
struct mtk_flow_entry *flow_info;
- struct mtk_foe_entry foe, *hwe;
+ struct mtk_foe_entry foe = {}, *hwe;
struct mtk_foe_mac_info *l2;
u32 ib1_mask = MTK_FOE_IB1_PACKET_TYPE | MTK_FOE_IB1_UDP;
int type;
@@ -578,8 +579,8 @@ mtk_foe_entry_commit_subflow(struct mtk_
&ppe->foe_flow[hash / soc->hash_offset]);
hlist_add_head(&flow_info->l2_data.list, &entry->l2_flows);
- hwe = &ppe->foe_table[hash];
- memcpy(&foe, hwe, sizeof(foe));
+ hwe = mtk_foe_get_entry(ppe, hash);
+ memcpy(&foe, hwe, soc->foe_entry_size);
foe.ib1 &= ib1_mask;
foe.ib1 |= entry->data.ib1 & ~ib1_mask;
@@ -601,7 +602,7 @@ void __mtk_ppe_check_skb(struct mtk_ppe
{
const struct mtk_soc_data *soc = ppe->eth->soc;
struct hlist_head *head = &ppe->foe_flow[hash / soc->hash_offset];
- struct mtk_foe_entry *hwe = &ppe->foe_table[hash];
+ struct mtk_foe_entry *hwe = mtk_foe_get_entry(ppe, hash);
struct mtk_flow_entry *entry;
struct mtk_foe_bridge key = {};
struct hlist_node *n;
@@ -686,9 +687,9 @@ struct mtk_ppe *mtk_ppe_init(struct mtk_
{
const struct mtk_soc_data *soc = eth->soc;
struct device *dev = eth->dev;
- struct mtk_foe_entry *foe;
struct mtk_ppe *ppe;
u32 foe_flow_size;
+ void *foe;
ppe = devm_kzalloc(dev, sizeof(*ppe), GFP_KERNEL);
if (!ppe)
@@ -704,7 +705,8 @@ struct mtk_ppe *mtk_ppe_init(struct mtk_
ppe->dev = dev;
ppe->version = version;
- foe = dmam_alloc_coherent(ppe->dev, MTK_PPE_ENTRIES * sizeof(*foe),
+ foe = dmam_alloc_coherent(ppe->dev,
+ MTK_PPE_ENTRIES * soc->foe_entry_size,
&ppe->foe_phys, GFP_KERNEL);
if (!foe)
return NULL;
@@ -727,15 +729,21 @@ static void mtk_ppe_init_foe_table(struc
static const u8 skip[] = { 12, 25, 38, 51, 76, 89, 102 };
int i, k;
- memset(ppe->foe_table, 0, MTK_PPE_ENTRIES * sizeof(*ppe->foe_table));
+ memset(ppe->foe_table, 0,
+ MTK_PPE_ENTRIES * ppe->eth->soc->foe_entry_size);
if (!IS_ENABLED(CONFIG_SOC_MT7621))
return;
/* skip all entries that cross the 1024 byte boundary */
- for (i = 0; i < MTK_PPE_ENTRIES; i += 128)
- for (k = 0; k < ARRAY_SIZE(skip); k++)
- ppe->foe_table[i + skip[k]].ib1 |= MTK_FOE_IB1_STATIC;
+ for (i = 0; i < MTK_PPE_ENTRIES; i += 128) {
+ for (k = 0; k < ARRAY_SIZE(skip); k++) {
+ struct mtk_foe_entry *hwe;
+
+ hwe = mtk_foe_get_entry(ppe, i + skip[k]);
+ hwe->ib1 |= MTK_FOE_IB1_STATIC;
+ }
+ }
}
void mtk_ppe_start(struct mtk_ppe *ppe)
@@ -822,9 +830,12 @@ int mtk_ppe_stop(struct mtk_ppe *ppe)
if (!ppe)
return 0;
- for (i = 0; i < MTK_PPE_ENTRIES; i++)
- ppe->foe_table[i].ib1 = FIELD_PREP(MTK_FOE_IB1_STATE,
- MTK_FOE_STATE_INVALID);
+ for (i = 0; i < MTK_PPE_ENTRIES; i++) {
+ struct mtk_foe_entry *hwe = mtk_foe_get_entry(ppe, i);
+
+ hwe->ib1 = FIELD_PREP(MTK_FOE_IB1_STATE,
+ MTK_FOE_STATE_INVALID);
+ }
mtk_ppe_cache_enable(ppe, false);
--- a/drivers/net/ethernet/mediatek/mtk_ppe.h
+++ b/drivers/net/ethernet/mediatek/mtk_ppe.h
@@ -268,7 +268,7 @@ struct mtk_ppe {
int version;
char dirname[5];
- struct mtk_foe_entry *foe_table;
+ void *foe_table;
dma_addr_t foe_phys;
u16 foe_check_time[MTK_PPE_ENTRIES];
--- a/drivers/net/ethernet/mediatek/mtk_ppe_debugfs.c
+++ b/drivers/net/ethernet/mediatek/mtk_ppe_debugfs.c
@@ -79,7 +79,7 @@ mtk_ppe_debugfs_foe_show(struct seq_file
int i;
for (i = 0; i < MTK_PPE_ENTRIES; i++) {
- struct mtk_foe_entry *entry = &ppe->foe_table[i];
+ struct mtk_foe_entry *entry = mtk_foe_get_entry(ppe, i);
struct mtk_foe_mac_info *l2;
struct mtk_flow_addr_info ai = {};
unsigned char h_source[ETH_ALEN];
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