summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorJakub Kicinski <kuba@kernel.org>2025-03-07 19:33:50 -0800
committerJakub Kicinski <kuba@kernel.org>2025-03-07 19:33:50 -0800
commita3cc3f424de70e0261d1bd7ba9dde3327f051277 (patch)
tree64790bb03e6aa25f0cb9b13efa8e00e1e525759e
parent64fdb808660d5ec5108e0e8b35bc3f24de203f8c (diff)
parent254f3239dd070e469f45c3ca8b6ac38e47d6c730 (diff)
Merge branch 'net-bcmgenet-revise-suspend-resume'
Doug Berger says: ==================== net: bcmgenet: revise suspend/resume This commit set updates the GENET driver to reduce the delay to resume the ethernet link when the Wake on Lan features are used. In addition, the encoding of hardware versioning and features is revised to avoid some redundancy and improve readability as well as remove a warning that occurred for the BCM7712 device which updated the device major version while maintaining compatibility with the driver. The assignment of hardware descriptor rings was modified to simplify programming and to allow support for the hardware RX_CLS_FLOW_DISC filter action. ==================== Link: https://patch.msgid.link/20250306192643.2383632-1-opendmb@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--drivers/net/ethernet/broadcom/genet/bcmgenet.c1089
-rw-r--r--drivers/net/ethernet/broadcom/genet/bcmgenet.h52
-rw-r--r--drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c89
-rw-r--r--drivers/net/ethernet/broadcom/genet/bcmmii.c6
4 files changed, 577 insertions, 659 deletions
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index 3e93f957430b..73d78dcb774d 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -2,7 +2,7 @@
/*
* Broadcom GENET (Gigabit Ethernet) controller driver
*
- * Copyright (c) 2014-2024 Broadcom
+ * Copyright (c) 2014-2025 Broadcom
*/
#define pr_fmt(fmt) "bcmgenet: " fmt
@@ -41,15 +41,13 @@
#include "bcmgenet.h"
-/* Maximum number of hardware queues, downsized if needed */
-#define GENET_MAX_MQ_CNT 4
-
/* Default highest priority queue for multi queue support */
-#define GENET_Q0_PRIORITY 0
+#define GENET_Q1_PRIORITY 0
+#define GENET_Q0_PRIORITY 1
-#define GENET_Q16_RX_BD_CNT \
+#define GENET_Q0_RX_BD_CNT \
(TOTAL_DESC - priv->hw_params->rx_queues * priv->hw_params->rx_bds_per_q)
-#define GENET_Q16_TX_BD_CNT \
+#define GENET_Q0_TX_BD_CNT \
(TOTAL_DESC - priv->hw_params->tx_queues * priv->hw_params->tx_bds_per_q)
#define RX_BUF_LENGTH 2048
@@ -104,7 +102,7 @@ static inline void dmadesc_set_addr(struct bcmgenet_priv *priv,
* the platform is explicitly configured for 64-bits/LPAE.
*/
#ifdef CONFIG_PHYS_ADDR_T_64BIT
- if (priv->hw_params->flags & GENET_HAS_40BITS)
+ if (bcmgenet_has_40bits(priv))
bcmgenet_writel(upper_32_bits(addr), d + DMA_DESC_ADDRESS_HI);
#endif
}
@@ -446,33 +444,48 @@ static void bcmgenet_hfb_enable_filter(struct bcmgenet_priv *priv, u32 f_index)
u32 offset;
u32 reg;
- offset = HFB_FLT_ENABLE_V3PLUS + (f_index < 32) * sizeof(u32);
- reg = bcmgenet_hfb_reg_readl(priv, offset);
- reg |= (1 << (f_index % 32));
- bcmgenet_hfb_reg_writel(priv, reg, offset);
- reg = bcmgenet_hfb_reg_readl(priv, HFB_CTRL);
- reg |= RBUF_HFB_EN;
- bcmgenet_hfb_reg_writel(priv, reg, HFB_CTRL);
+ if (GENET_IS_V1(priv) || GENET_IS_V2(priv)) {
+ reg = bcmgenet_hfb_reg_readl(priv, HFB_CTRL);
+ reg |= (1 << ((f_index % 32) + RBUF_HFB_FILTER_EN_SHIFT)) |
+ RBUF_HFB_EN;
+ bcmgenet_hfb_reg_writel(priv, reg, HFB_CTRL);
+ } else {
+ offset = HFB_FLT_ENABLE_V3PLUS + (f_index < 32) * sizeof(u32);
+ reg = bcmgenet_hfb_reg_readl(priv, offset);
+ reg |= (1 << (f_index % 32));
+ bcmgenet_hfb_reg_writel(priv, reg, offset);
+ reg = bcmgenet_hfb_reg_readl(priv, HFB_CTRL);
+ reg |= RBUF_HFB_EN;
+ bcmgenet_hfb_reg_writel(priv, reg, HFB_CTRL);
+ }
}
static void bcmgenet_hfb_disable_filter(struct bcmgenet_priv *priv, u32 f_index)
{
u32 offset, reg, reg1;
- offset = HFB_FLT_ENABLE_V3PLUS;
- reg = bcmgenet_hfb_reg_readl(priv, offset);
- reg1 = bcmgenet_hfb_reg_readl(priv, offset + sizeof(u32));
- if (f_index < 32) {
- reg1 &= ~(1 << (f_index % 32));
- bcmgenet_hfb_reg_writel(priv, reg1, offset + sizeof(u32));
- } else {
- reg &= ~(1 << (f_index % 32));
- bcmgenet_hfb_reg_writel(priv, reg, offset);
- }
- if (!reg && !reg1) {
+ if (GENET_IS_V1(priv) || GENET_IS_V2(priv)) {
reg = bcmgenet_hfb_reg_readl(priv, HFB_CTRL);
- reg &= ~RBUF_HFB_EN;
+ reg &= ~(1 << ((f_index % 32) + RBUF_HFB_FILTER_EN_SHIFT));
+ if (!(reg & RBUF_HFB_FILTER_EN_MASK))
+ reg &= ~RBUF_HFB_EN;
bcmgenet_hfb_reg_writel(priv, reg, HFB_CTRL);
+ } else {
+ offset = HFB_FLT_ENABLE_V3PLUS;
+ reg = bcmgenet_hfb_reg_readl(priv, offset);
+ reg1 = bcmgenet_hfb_reg_readl(priv, offset + sizeof(u32));
+ if (f_index < 32) {
+ reg1 &= ~(1 << (f_index % 32));
+ bcmgenet_hfb_reg_writel(priv, reg1, offset + sizeof(u32));
+ } else {
+ reg &= ~(1 << (f_index % 32));
+ bcmgenet_hfb_reg_writel(priv, reg, offset);
+ }
+ if (!reg && !reg1) {
+ reg = bcmgenet_hfb_reg_readl(priv, HFB_CTRL);
+ reg &= ~RBUF_HFB_EN;
+ bcmgenet_hfb_reg_writel(priv, reg, HFB_CTRL);
+ }
}
}
@@ -482,6 +495,9 @@ static void bcmgenet_hfb_set_filter_rx_queue_mapping(struct bcmgenet_priv *priv,
u32 offset;
u32 reg;
+ if (GENET_IS_V1(priv) || GENET_IS_V2(priv))
+ return;
+
offset = f_index / 8;
reg = bcmgenet_rdma_readl(priv, DMA_INDEX2RING_0 + offset);
reg &= ~(0xF << (4 * (f_index % 8)));
@@ -495,9 +511,13 @@ static void bcmgenet_hfb_set_filter_length(struct bcmgenet_priv *priv,
u32 offset;
u32 reg;
- offset = HFB_FLT_LEN_V3PLUS +
- ((priv->hw_params->hfb_filter_cnt - 1 - f_index) / 4) *
- sizeof(u32);
+ if (GENET_IS_V1(priv) || GENET_IS_V2(priv))
+ offset = HFB_FLT_LEN_V2;
+ else
+ offset = HFB_FLT_LEN_V3PLUS;
+
+ offset += sizeof(u32) *
+ ((priv->hw_params->hfb_filter_cnt - 1 - f_index) / 4);
reg = bcmgenet_hfb_reg_readl(priv, offset);
reg &= ~(0xFF << (8 * (f_index % 4)));
reg |= ((f_length & 0xFF) << (8 * (f_index % 4)));
@@ -579,13 +599,13 @@ static void bcmgenet_hfb_create_rxnfc_filter(struct bcmgenet_priv *priv,
struct bcmgenet_rxnfc_rule *rule)
{
struct ethtool_rx_flow_spec *fs = &rule->fs;
- u32 offset = 0, f_length = 0, f;
+ u32 offset = 0, f_length = 0, f, q;
u8 val_8, mask_8;
__be16 val_16;
u16 mask_16;
size_t size;
- f = fs->location;
+ f = fs->location + 1;
if (fs->flow_type & FLOW_MAC_EXT) {
bcmgenet_hfb_insert_data(priv, f, 0,
&fs->h_ext.h_dest, &fs->m_ext.h_dest,
@@ -667,19 +687,16 @@ static void bcmgenet_hfb_create_rxnfc_filter(struct bcmgenet_priv *priv,
}
bcmgenet_hfb_set_filter_length(priv, f, 2 * f_length);
- if (!fs->ring_cookie || fs->ring_cookie == RX_CLS_FLOW_WAKE) {
- /* Ring 0 flows can be handled by the default Descriptor Ring
- * We'll map them to ring 0, but don't enable the filter
- */
- bcmgenet_hfb_set_filter_rx_queue_mapping(priv, f, 0);
- rule->state = BCMGENET_RXNFC_STATE_DISABLED;
- } else {
+ if (fs->ring_cookie == RX_CLS_FLOW_WAKE)
+ q = 0;
+ else if (fs->ring_cookie == RX_CLS_FLOW_DISC)
+ q = priv->hw_params->rx_queues + 1;
+ else
/* Other Rx rings are direct mapped here */
- bcmgenet_hfb_set_filter_rx_queue_mapping(priv, f,
- fs->ring_cookie);
- bcmgenet_hfb_enable_filter(priv, f);
- rule->state = BCMGENET_RXNFC_STATE_ENABLED;
- }
+ q = fs->ring_cookie;
+ bcmgenet_hfb_set_filter_rx_queue_mapping(priv, f, q);
+ bcmgenet_hfb_enable_filter(priv, f);
+ rule->state = BCMGENET_RXNFC_STATE_ENABLED;
}
/* bcmgenet_hfb_clear
@@ -690,6 +707,7 @@ static void bcmgenet_hfb_clear_filter(struct bcmgenet_priv *priv, u32 f_index)
{
u32 base, i;
+ bcmgenet_hfb_set_filter_length(priv, f_index, 0);
base = f_index * priv->hw_params->hfb_filter_size;
for (i = 0; i < priv->hw_params->hfb_filter_size; i++)
bcmgenet_hfb_writel(priv, 0x0, (base + i) * sizeof(u32));
@@ -699,22 +717,23 @@ static void bcmgenet_hfb_clear(struct bcmgenet_priv *priv)
{
u32 i;
- if (GENET_IS_V1(priv) || GENET_IS_V2(priv))
- return;
-
- bcmgenet_hfb_reg_writel(priv, 0x0, HFB_CTRL);
- bcmgenet_hfb_reg_writel(priv, 0x0, HFB_FLT_ENABLE_V3PLUS);
- bcmgenet_hfb_reg_writel(priv, 0x0, HFB_FLT_ENABLE_V3PLUS + 4);
-
- for (i = DMA_INDEX2RING_0; i <= DMA_INDEX2RING_7; i++)
- bcmgenet_rdma_writel(priv, 0x0, i);
+ bcmgenet_hfb_reg_writel(priv, 0, HFB_CTRL);
- for (i = 0; i < (priv->hw_params->hfb_filter_cnt / 4); i++)
- bcmgenet_hfb_reg_writel(priv, 0x0,
- HFB_FLT_LEN_V3PLUS + i * sizeof(u32));
+ if (!GENET_IS_V1(priv) && !GENET_IS_V2(priv)) {
+ bcmgenet_hfb_reg_writel(priv, 0,
+ HFB_FLT_ENABLE_V3PLUS);
+ bcmgenet_hfb_reg_writel(priv, 0,
+ HFB_FLT_ENABLE_V3PLUS + 4);
+ for (i = DMA_INDEX2RING_0; i <= DMA_INDEX2RING_7; i++)
+ bcmgenet_rdma_writel(priv, 0, i);
+ }
for (i = 0; i < priv->hw_params->hfb_filter_cnt; i++)
bcmgenet_hfb_clear_filter(priv, i);
+
+ /* Enable filter 0 to send default flow to ring 0 */
+ bcmgenet_hfb_set_filter_length(priv, 0, 4);
+ bcmgenet_hfb_enable_filter(priv, 0);
}
static void bcmgenet_hfb_init(struct bcmgenet_priv *priv)
@@ -722,9 +741,6 @@ static void bcmgenet_hfb_init(struct bcmgenet_priv *priv)
int i;
INIT_LIST_HEAD(&priv->rxnfc_list);
- if (GENET_IS_V1(priv) || GENET_IS_V2(priv))
- return;
-
for (i = 0; i < MAX_NUM_OF_FS_RULES; i++) {
INIT_LIST_HEAD(&priv->rxnfc_rules[i].list);
priv->rxnfc_rules[i].state = BCMGENET_RXNFC_STATE_UNUSED;
@@ -819,20 +835,16 @@ static int bcmgenet_get_coalesce(struct net_device *dev,
unsigned int i;
ec->tx_max_coalesced_frames =
- bcmgenet_tdma_ring_readl(priv, DESC_INDEX,
- DMA_MBUF_DONE_THRESH);
+ bcmgenet_tdma_ring_readl(priv, 0, DMA_MBUF_DONE_THRESH);
ec->rx_max_coalesced_frames =
- bcmgenet_rdma_ring_readl(priv, DESC_INDEX,
- DMA_MBUF_DONE_THRESH);
+ bcmgenet_rdma_ring_readl(priv, 0, DMA_MBUF_DONE_THRESH);
ec->rx_coalesce_usecs =
- bcmgenet_rdma_readl(priv, DMA_RING16_TIMEOUT) * 8192 / 1000;
+ bcmgenet_rdma_readl(priv, DMA_RING0_TIMEOUT) * 8192 / 1000;
- for (i = 0; i < priv->hw_params->rx_queues; i++) {
+ for (i = 0; i <= priv->hw_params->rx_queues; i++) {
ring = &priv->rx_rings[i];
ec->use_adaptive_rx_coalesce |= ring->dim.use_dim;
}
- ring = &priv->rx_rings[DESC_INDEX];
- ec->use_adaptive_rx_coalesce |= ring->dim.use_dim;
return 0;
}
@@ -902,17 +914,13 @@ static int bcmgenet_set_coalesce(struct net_device *dev,
/* Program all TX queues with the same values, as there is no
* ethtool knob to do coalescing on a per-queue basis
*/
- for (i = 0; i < priv->hw_params->tx_queues; i++)
+ for (i = 0; i <= priv->hw_params->tx_queues; i++)
bcmgenet_tdma_ring_writel(priv, i,
ec->tx_max_coalesced_frames,
DMA_MBUF_DONE_THRESH);
- bcmgenet_tdma_ring_writel(priv, DESC_INDEX,
- ec->tx_max_coalesced_frames,
- DMA_MBUF_DONE_THRESH);
- for (i = 0; i < priv->hw_params->rx_queues; i++)
+ for (i = 0; i <= priv->hw_params->rx_queues; i++)
bcmgenet_set_ring_rx_coalesce(&priv->rx_rings[i], ec);
- bcmgenet_set_ring_rx_coalesce(&priv->rx_rings[DESC_INDEX], ec);
return 0;
}
@@ -1120,7 +1128,7 @@ static const struct bcmgenet_stats bcmgenet_gstrings_stats[] = {
STAT_GENET_Q(1),
STAT_GENET_Q(2),
STAT_GENET_Q(3),
- STAT_GENET_Q(16),
+ STAT_GENET_Q(4),
};
#define BCMGENET_STATS_LEN ARRAY_SIZE(bcmgenet_gstrings_stats)
@@ -1438,7 +1446,8 @@ static int bcmgenet_insert_flow(struct net_device *dev,
}
if (cmd->fs.ring_cookie > priv->hw_params->rx_queues &&
- cmd->fs.ring_cookie != RX_CLS_FLOW_WAKE) {
+ cmd->fs.ring_cookie != RX_CLS_FLOW_WAKE &&
+ cmd->fs.ring_cookie != RX_CLS_FLOW_DISC) {
netdev_err(dev, "rxnfc: Unsupported action (%llu)\n",
cmd->fs.ring_cookie);
return -EINVAL;
@@ -1472,10 +1481,10 @@ static int bcmgenet_insert_flow(struct net_device *dev,
loc_rule = &priv->rxnfc_rules[cmd->fs.location];
}
if (loc_rule->state == BCMGENET_RXNFC_STATE_ENABLED)
- bcmgenet_hfb_disable_filter(priv, cmd->fs.location);
+ bcmgenet_hfb_disable_filter(priv, cmd->fs.location + 1);
if (loc_rule->state != BCMGENET_RXNFC_STATE_UNUSED) {
list_del(&loc_rule->list);
- bcmgenet_hfb_clear_filter(priv, cmd->fs.location);
+ bcmgenet_hfb_clear_filter(priv, cmd->fs.location + 1);
}
loc_rule->state = BCMGENET_RXNFC_STATE_UNUSED;
memcpy(&loc_rule->fs, &cmd->fs,
@@ -1505,10 +1514,10 @@ static int bcmgenet_delete_flow(struct net_device *dev,
}
if (rule->state == BCMGENET_RXNFC_STATE_ENABLED)
- bcmgenet_hfb_disable_filter(priv, cmd->fs.location);
+ bcmgenet_hfb_disable_filter(priv, cmd->fs.location + 1);
if (rule->state != BCMGENET_RXNFC_STATE_UNUSED) {
list_del(&rule->list);
- bcmgenet_hfb_clear_filter(priv, cmd->fs.location);
+ bcmgenet_hfb_clear_filter(priv, cmd->fs.location + 1);
}
rule->state = BCMGENET_RXNFC_STATE_UNUSED;
memset(&rule->fs, 0, sizeof(struct ethtool_rx_flow_spec));
@@ -1651,9 +1660,9 @@ static int bcmgenet_power_down(struct bcmgenet_priv *priv,
case GENET_POWER_PASSIVE:
/* Power down LED */
- if (priv->hw_params->flags & GENET_HAS_EXT) {
+ if (bcmgenet_has_ext(priv)) {
reg = bcmgenet_ext_readl(priv, EXT_EXT_PWR_MGMT);
- if (GENET_IS_V5(priv) && !priv->ephy_16nm)
+ if (GENET_IS_V5(priv) && !bcmgenet_has_ephy_16nm(priv))
reg |= EXT_PWR_DOWN_PHY_EN |
EXT_PWR_DOWN_PHY_RD |
EXT_PWR_DOWN_PHY_SD |
@@ -1676,13 +1685,14 @@ static int bcmgenet_power_down(struct bcmgenet_priv *priv,
return ret;
}
-static void bcmgenet_power_up(struct bcmgenet_priv *priv,
- enum bcmgenet_power_mode mode)
+static int bcmgenet_power_up(struct bcmgenet_priv *priv,
+ enum bcmgenet_power_mode mode)
{
+ int ret = 0;
u32 reg;
- if (!(priv->hw_params->flags & GENET_HAS_EXT))
- return;
+ if (!bcmgenet_has_ext(priv))
+ return ret;
reg = bcmgenet_ext_readl(priv, EXT_EXT_PWR_MGMT);
@@ -1690,7 +1700,7 @@ static void bcmgenet_power_up(struct bcmgenet_priv *priv,
case GENET_POWER_PASSIVE:
reg &= ~(EXT_PWR_DOWN_DLL | EXT_PWR_DOWN_BIAS |
EXT_ENERGY_DET_MASK);
- if (GENET_IS_V5(priv) && !priv->ephy_16nm) {
+ if (GENET_IS_V5(priv) && !bcmgenet_has_ephy_16nm(priv)) {
reg &= ~(EXT_PWR_DOWN_PHY_EN |
EXT_PWR_DOWN_PHY_RD |
EXT_PWR_DOWN_PHY_SD |
@@ -1718,11 +1728,13 @@ static void bcmgenet_power_up(struct bcmgenet_priv *priv,
}
break;
case GENET_POWER_WOL_MAGIC:
- bcmgenet_wol_power_up_cfg(priv, mode);
- return;
+ ret = bcmgenet_wol_power_up_cfg(priv, mode);
+ break;
default:
break;
}
+
+ return ret;
}
static struct enet_cb *bcmgenet_get_txcb(struct bcmgenet_priv *priv,
@@ -1759,18 +1771,6 @@ static struct enet_cb *bcmgenet_put_txcb(struct bcmgenet_priv *priv,
return tx_cb_ptr;
}
-static inline void bcmgenet_rx_ring16_int_disable(struct bcmgenet_rx_ring *ring)
-{
- bcmgenet_intrl2_0_writel(ring->priv, UMAC_IRQ_RXDMA_DONE,
- INTRL2_CPU_MASK_SET);
-}
-
-static inline void bcmgenet_rx_ring16_int_enable(struct bcmgenet_rx_ring *ring)
-{
- bcmgenet_intrl2_0_writel(ring->priv, UMAC_IRQ_RXDMA_DONE,
- INTRL2_CPU_MASK_CLEAR);
-}
-
static inline void bcmgenet_rx_ring_int_disable(struct bcmgenet_rx_ring *ring)
{
bcmgenet_intrl2_1_writel(ring->priv,
@@ -1785,18 +1785,6 @@ static inline void bcmgenet_rx_ring_int_enable(struct bcmgenet_rx_ring *ring)
INTRL2_CPU_MASK_CLEAR);
}
-static inline void bcmgenet_tx_ring16_int_disable(struct bcmgenet_tx_ring *ring)
-{
- bcmgenet_intrl2_0_writel(ring->priv, UMAC_IRQ_TXDMA_DONE,
- INTRL2_CPU_MASK_SET);
-}
-
-static inline void bcmgenet_tx_ring16_int_enable(struct bcmgenet_tx_ring *ring)
-{
- bcmgenet_intrl2_0_writel(ring->priv, UMAC_IRQ_TXDMA_DONE,
- INTRL2_CPU_MASK_CLEAR);
-}
-
static inline void bcmgenet_tx_ring_int_enable(struct bcmgenet_tx_ring *ring)
{
bcmgenet_intrl2_1_writel(ring->priv, 1 << ring->index,
@@ -1877,12 +1865,7 @@ static unsigned int __bcmgenet_tx_reclaim(struct net_device *dev,
struct sk_buff *skb;
/* Clear status before servicing to reduce spurious interrupts */
- if (ring->index == DESC_INDEX)
- bcmgenet_intrl2_0_writel(priv, UMAC_IRQ_TXDMA_DONE,
- INTRL2_CPU_CLEAR);
- else
- bcmgenet_intrl2_1_writel(priv, (1 << ring->index),
- INTRL2_CPU_CLEAR);
+ bcmgenet_intrl2_1_writel(priv, (1 << ring->index), INTRL2_CPU_CLEAR);
/* Compute how many buffers are transmitted since last xmit call */
c_index = bcmgenet_tdma_ring_readl(priv, ring->index, TDMA_CONS_INDEX)
@@ -1916,19 +1899,46 @@ static unsigned int __bcmgenet_tx_reclaim(struct net_device *dev,
ring->packets += pkts_compl;
ring->bytes += bytes_compl;
- netdev_tx_completed_queue(netdev_get_tx_queue(dev, ring->queue),
+ netdev_tx_completed_queue(netdev_get_tx_queue(dev, ring->index),
pkts_compl, bytes_compl);
return txbds_processed;
}
static unsigned int bcmgenet_tx_reclaim(struct net_device *dev,
- struct bcmgenet_tx_ring *ring)
+ struct bcmgenet_tx_ring *ring,
+ bool all)
{
- unsigned int released;
+ struct bcmgenet_priv *priv = netdev_priv(dev);
+ struct device *kdev = &priv->pdev->dev;
+ unsigned int released, drop, wr_ptr;
+ struct enet_cb *cb_ptr;
+ struct sk_buff *skb;
spin_lock_bh(&ring->lock);
released = __bcmgenet_tx_reclaim(dev, ring);
+ if (all) {
+ skb = NULL;
+ drop = (ring->prod_index - ring->c_index) & DMA_C_INDEX_MASK;
+ released += drop;
+ ring->prod_index = ring->c_index & DMA_C_INDEX_MASK;
+ while (drop--) {
+ cb_ptr = bcmgenet_put_txcb(priv, ring);
+ skb = cb_ptr->skb;
+ bcmgenet_free_tx_cb(kdev, cb_ptr);
+ if (skb && cb_ptr == GENET_CB(skb)->first_cb) {
+ dev_consume_skb_any(skb);
+ skb = NULL;
+ }
+ }
+ if (skb)
+ dev_consume_skb_any(skb);
+ bcmgenet_tdma_ring_writel(priv, ring->index,
+ ring->prod_index, TDMA_PROD_INDEX);
+ wr_ptr = ring->write_ptr * WORDS_PER_BD(priv);
+ bcmgenet_tdma_ring_writel(priv, ring->index, wr_ptr,
+ TDMA_WRITE_PTR);
+ }
spin_unlock_bh(&ring->lock);
return released;
@@ -1944,14 +1954,14 @@ static int bcmgenet_tx_poll(struct napi_struct *napi, int budget)
spin_lock(&ring->lock);
work_done = __bcmgenet_tx_reclaim(ring->priv->dev, ring);
if (ring->free_bds > (MAX_SKB_FRAGS + 1)) {
- txq = netdev_get_tx_queue(ring->priv->dev, ring->queue);
+ txq = netdev_get_tx_queue(ring->priv->dev, ring->index);
netif_tx_wake_queue(txq);
}
spin_unlock(&ring->lock);
if (work_done == 0) {
napi_complete(napi);
- ring->int_enable(ring);
+ bcmgenet_tx_ring_int_enable(ring);
return 0;
}
@@ -1962,14 +1972,11 @@ static int bcmgenet_tx_poll(struct napi_struct *napi, int budget)
static void bcmgenet_tx_reclaim_all(struct net_device *dev)
{
struct bcmgenet_priv *priv = netdev_priv(dev);
- int i;
-
- if (netif_is_multiqueue(dev)) {
- for (i = 0; i < priv->hw_params->tx_queues; i++)
- bcmgenet_tx_reclaim(dev, &priv->tx_rings[i]);
- }
+ int i = 0;
- bcmgenet_tx_reclaim(dev, &priv->tx_rings[DESC_INDEX]);
+ do {
+ bcmgenet_tx_reclaim(dev, &priv->tx_rings[i++], true);
+ } while (i <= priv->hw_params->tx_queues && netif_is_multiqueue(dev));
}
/* Reallocate the SKB to put enough headroom in front of it and insert
@@ -2057,19 +2064,14 @@ static netdev_tx_t bcmgenet_xmit(struct sk_buff *skb, struct net_device *dev)
index = skb_get_queue_mapping(skb);
/* Mapping strategy:
- * queue_mapping = 0, unclassified, packet xmited through ring16
- * queue_mapping = 1, goes to ring 0. (highest priority queue
- * queue_mapping = 2, goes to ring 1.
- * queue_mapping = 3, goes to ring 2.
- * queue_mapping = 4, goes to ring 3.
+ * queue_mapping = 0, unclassified, packet xmited through ring 0
+ * queue_mapping = 1, goes to ring 1. (highest priority queue)
+ * queue_mapping = 2, goes to ring 2.
+ * queue_mapping = 3, goes to ring 3.
+ * queue_mapping = 4, goes to ring 4.
*/
- if (index == 0)
- index = DESC_INDEX;
- else
- index -= 1;
-
ring = &priv->tx_rings[index];
- txq = netdev_get_tx_queue(dev, ring->queue);
+ txq = netdev_get_tx_queue(dev, index);
nr_frags = skb_shinfo(skb)->nr_frags;
@@ -2242,15 +2244,8 @@ static unsigned int bcmgenet_desc_rx(struct bcmgenet_rx_ring *ring,
unsigned int discards;
/* Clear status before servicing to reduce spurious interrupts */
- if (ring->index == DESC_INDEX) {
- bcmgenet_intrl2_0_writel(priv, UMAC_IRQ_RXDMA_DONE,
- INTRL2_CPU_CLEAR);
- } else {
- mask = 1 << (UMAC_IRQ1_RX_INTR_SHIFT + ring->index);
- bcmgenet_intrl2_1_writel(priv,
- mask,
- INTRL2_CPU_CLEAR);
- }
+ mask = 1 << (UMAC_IRQ1_RX_INTR_SHIFT + ring->index);
+ bcmgenet_intrl2_1_writel(priv, mask, INTRL2_CPU_CLEAR);
p_index = bcmgenet_rdma_ring_readl(priv, ring->index, RDMA_PROD_INDEX);
@@ -2399,7 +2394,7 @@ static int bcmgenet_rx_poll(struct napi_struct *napi, int budget)
if (work_done < budget) {
napi_complete_done(napi, work_done);
- ring->int_enable(ring);
+ bcmgenet_rx_ring_int_enable(ring);
}
if (ring->dim.use_dim) {
@@ -2523,7 +2518,7 @@ static void bcmgenet_link_intr_enable(struct bcmgenet_priv *priv)
} else if (priv->ext_phy) {
int0_enable |= UMAC_IRQ_LINK_EVENT;
} else if (priv->phy_interface == PHY_INTERFACE_MODE_MOCA) {
- if (priv->hw_params->flags & GENET_HAS_MOCA_LINK_DET)
+ if (bcmgenet_has_moca_link_det(priv))
int0_enable |= UMAC_IRQ_LINK_EVENT;
}
bcmgenet_intrl2_0_writel(priv, int0_enable, INTRL2_CPU_MASK_CLEAR);
@@ -2588,8 +2583,8 @@ static void init_umac(struct bcmgenet_priv *priv)
}
/* Enable MDIO interrupts on GENET v3+ */
- if (priv->hw_params->flags & GENET_HAS_MDIO_INTR)
- int0_enable |= (UMAC_IRQ_MDIO_DONE | UMAC_IRQ_MDIO_ERROR);
+ if (bcmgenet_has_mdio_intr(priv))
+ int0_enable |= UMAC_IRQ_MDIO_EVENT;
bcmgenet_intrl2_0_writel(priv, int0_enable, INTRL2_CPU_MASK_CLEAR);
@@ -2639,15 +2634,6 @@ static void bcmgenet_init_tx_ring(struct bcmgenet_priv *priv,
spin_lock_init(&ring->lock);
ring->priv = priv;
ring->index = index;
- if (index == DESC_INDEX) {
- ring->queue = 0;
- ring->int_enable = bcmgenet_tx_ring16_int_enable;
- ring->int_disable = bcmgenet_tx_ring16_int_disable;
- } else {
- ring->queue = index + 1;
- ring->int_enable = bcmgenet_tx_ring_int_enable;
- ring->int_disable = bcmgenet_tx_ring_int_disable;
- }
ring->cbs = priv->tx_cbs + start_ptr;
ring->size = size;
ring->clean_ptr = start_ptr;
@@ -2658,8 +2644,8 @@ static void bcmgenet_init_tx_ring(struct bcmgenet_priv *priv,
ring->end_ptr = end_ptr - 1;
ring->prod_index = 0;
- /* Set flow period for ring != 16 */
- if (index != DESC_INDEX)
+ /* Set flow period for ring != 0 */
+ if (index)
flow_period_val = ENET_MAX_MTU_SIZE << 16;
bcmgenet_tdma_ring_writel(priv, index, 0, TDMA_PROD_INDEX);
@@ -2697,13 +2683,6 @@ static int bcmgenet_init_rx_ring(struct bcmgenet_priv *priv,
ring->priv = priv;
ring->index = index;
- if (index == DESC_INDEX) {
- ring->int_enable = bcmgenet_rx_ring16_int_enable;
- ring->int_disable = bcmgenet_rx_ring16_int_disable;
- } else {
- ring->int_enable = bcmgenet_rx_ring_int_enable;
- ring->int_disable = bcmgenet_rx_ring_int_disable;
- }
ring->cbs = priv->rx_cbs + start_ptr;
ring->size = size;
ring->c_index = 0;
@@ -2749,15 +2728,11 @@ static void bcmgenet_enable_tx_napi(struct bcmgenet_priv *priv)
unsigned int i;
struct bcmgenet_tx_ring *ring;
- for (i = 0; i < priv->hw_params->tx_queues; ++i) {
+ for (i = 0; i <= priv->hw_params->tx_queues; ++i) {
ring = &priv->tx_rings[i];
napi_enable(&ring->napi);
- ring->int_enable(ring);
+ bcmgenet_tx_ring_int_enable(ring);
}
-
- ring = &priv->tx_rings[DESC_INDEX];
- napi_enable(&ring->napi);
- ring->int_enable(ring);
}
static void bcmgenet_disable_tx_napi(struct bcmgenet_priv *priv)
@@ -2765,13 +2740,10 @@ static void bcmgenet_disable_tx_napi(struct bcmgenet_priv *priv)
unsigned int i;
struct bcmgenet_tx_ring *ring;
- for (i = 0; i < priv->hw_params->tx_queues; ++i) {
+ for (i = 0; i <= priv->hw_params->tx_queues; ++i) {
ring = &priv->tx_rings[i];
napi_disable(&ring->napi);
}
-
- ring = &priv->tx_rings[DESC_INDEX];
- napi_disable(&ring->napi);
}
static void bcmgenet_fini_tx_napi(struct bcmgenet_priv *priv)
@@ -2779,82 +2751,104 @@ static void bcmgenet_fini_tx_napi(struct bcmgenet_priv *priv)
unsigned int i;
struct bcmgenet_tx_ring *ring;
- for (i = 0; i < priv->hw_params->tx_queues; ++i) {
+ for (i = 0; i <= priv->hw_params->tx_queues; ++i) {
ring = &priv->tx_rings[i];
netif_napi_del(&ring->napi);
}
+}
- ring = &priv->tx_rings[DESC_INDEX];
- netif_napi_del(&ring->napi);
+static int bcmgenet_tdma_disable(struct bcmgenet_priv *priv)
+{
+ int timeout = 0;
+ u32 reg, mask;
+
+ reg = bcmgenet_tdma_readl(priv, DMA_CTRL);
+ mask = (1 << (priv->hw_params->tx_queues + 1)) - 1;
+ mask = (mask << DMA_RING_BUF_EN_SHIFT) | DMA_EN;
+ reg &= ~mask;
+ bcmgenet_tdma_writel(priv, reg, DMA_CTRL);
+
+ /* Check DMA status register to confirm DMA is disabled */
+ while (timeout++ < DMA_TIMEOUT_VAL) {
+ reg = bcmgenet_tdma_readl(priv, DMA_STATUS);
+ if ((reg & mask) == mask)
+ return 0;
+
+ udelay(1);
+ }
+
+ return -ETIMEDOUT;
+}
+
+static int bcmgenet_rdma_disable(struct bcmgenet_priv *priv)
+{
+ int timeout = 0;
+ u32 reg, mask;
+
+ reg = bcmgenet_rdma_readl(priv, DMA_CTRL);
+ mask = (1 << (priv->hw_params->rx_queues + 1)) - 1;
+ mask = (mask << DMA_RING_BUF_EN_SHIFT) | DMA_EN;
+ reg &= ~mask;
+ bcmgenet_rdma_writel(priv, reg, DMA_CTRL);
+
+ /* Check DMA status register to confirm DMA is disabled */
+ while (timeout++ < DMA_TIMEOUT_VAL) {
+ reg = bcmgenet_rdma_readl(priv, DMA_STATUS);
+ if ((reg & mask) == mask)
+ return 0;
+
+ udelay(1);
+ }
+
+ return -ETIMEDOUT;
}
/* Initialize Tx queues
*
- * Queues 0-3 are priority-based, each one has 32 descriptors,
- * with queue 0 being the highest priority queue.
+ * Queues 1-4 are priority-based, each one has 32 descriptors,
+ * with queue 1 being the highest priority queue.
*
- * Queue 16 is the default Tx queue with
- * GENET_Q16_TX_BD_CNT = 256 - 4 * 32 = 128 descriptors.
+ * Queue 0 is the default Tx queue with
+ * GENET_Q0_TX_BD_CNT = 256 - 4 * 32 = 128 descriptors.
*
* The transmit control block pool is then partitioned as follows:
- * - Tx queue 0 uses tx_cbs[0..31]
- * - Tx queue 1 uses tx_cbs[32..63]
- * - Tx queue 2 uses tx_cbs[64..95]
- * - Tx queue 3 uses tx_cbs[96..127]
- * - Tx queue 16 uses tx_cbs[128..255]
+ * - Tx queue 0 uses tx_cbs[0..127]
+ * - Tx queue 1 uses tx_cbs[128..159]
+ * - Tx queue 2 uses tx_cbs[160..191]
+ * - Tx queue 3 uses tx_cbs[192..223]
+ * - Tx queue 4 uses tx_cbs[224..255]
*/
static void bcmgenet_init_tx_queues(struct net_device *dev)
{
struct bcmgenet_priv *priv = netdev_priv(dev);
- u32 i, dma_enable;
- u32 dma_ctrl, ring_cfg;
- u32 dma_priority[3] = {0, 0, 0};
-
- dma_ctrl = bcmgenet_tdma_readl(priv, DMA_CTRL);
- dma_enable = dma_ctrl & DMA_EN;
- dma_ctrl &= ~DMA_EN;
- bcmgenet_tdma_writel(priv, dma_ctrl, DMA_CTRL);
-
- dma_ctrl = 0;
- ring_cfg = 0;
+ unsigned int start = 0, end = GENET_Q0_TX_BD_CNT;
+ u32 i, ring_mask, dma_priority[3] = {0, 0, 0};
/* Enable strict priority arbiter mode */
bcmgenet_tdma_writel(priv, DMA_ARBITER_SP, DMA_ARB_CTRL);
/* Initialize Tx priority queues */
- for (i = 0; i < priv->hw_params->tx_queues; i++) {
- bcmgenet_init_tx_ring(priv, i, priv->hw_params->tx_bds_per_q,
- i * priv->hw_params->tx_bds_per_q,
- (i + 1) * priv->hw_params->tx_bds_per_q);
- ring_cfg |= (1 << i);
- dma_ctrl |= (1 << (i + DMA_RING_BUF_EN_SHIFT));
+ for (i = 0; i <= priv->hw_params->tx_queues; i++) {
+ bcmgenet_init_tx_ring(priv, i, end - start, start, end);
+ start = end;
+ end += priv->hw_params->tx_bds_per_q;
dma_priority[DMA_PRIO_REG_INDEX(i)] |=
- ((GENET_Q0_PRIORITY + i) << DMA_PRIO_REG_SHIFT(i));
+ (i ? GENET_Q1_PRIORITY : GENET_Q0_PRIORITY)
+ << DMA_PRIO_REG_SHIFT(i);
}
- /* Initialize Tx default queue 16 */
- bcmgenet_init_tx_ring(priv, DESC_INDEX, GENET_Q16_TX_BD_CNT,
- priv->hw_params->tx_queues *
- priv->hw_params->tx_bds_per_q,
- TOTAL_DESC);
- ring_cfg |= (1 << DESC_INDEX);
- dma_ctrl |= (1 << (DESC_INDEX + DMA_RING_BUF_EN_SHIFT));
- dma_priority[DMA_PRIO_REG_INDEX(DESC_INDEX)] |=
- ((GENET_Q0_PRIORITY + priv->hw_params->tx_queues) <<
- DMA_PRIO_REG_SHIFT(DESC_INDEX));
-
/* Set Tx queue priorities */
bcmgenet_tdma_writel(priv, dma_priority[0], DMA_PRIORITY_0);
bcmgenet_tdma_writel(priv, dma_priority[1], DMA_PRIORITY_1);
bcmgenet_tdma_writel(priv, dma_priority[2], DMA_PRIORITY_2);
- /* Enable Tx queues */
- bcmgenet_tdma_writel(priv, ring_cfg, DMA_RING_CFG);
+ /* Configure Tx queues as descriptor rings */
+ ring_mask = (1 << (priv->hw_params->tx_queues + 1)) - 1;
+ bcmgenet_tdma_writel(priv, ring_mask, DMA_RING_CFG);
- /* Enable Tx DMA */
- if (dma_enable)
- dma_ctrl |= DMA_EN;
- bcmgenet_tdma_writel(priv, dma_ctrl, DMA_CTRL);
+ /* Enable Tx rings */
+ ring_mask <<= DMA_RING_BUF_EN_SHIFT;
+ bcmgenet_tdma_writel(priv, ring_mask, DMA_CTRL);
}
static void bcmgenet_enable_rx_napi(struct bcmgenet_priv *priv)
@@ -2862,15 +2856,11 @@ static void bcmgenet_enable_rx_napi(struct bcmgenet_priv *priv)
unsigned int i;
struct bcmgenet_rx_ring *ring;
- for (i = 0; i < priv->hw_params->rx_queues; ++i) {
+ for (i = 0; i <= priv->hw_params->rx_queues; ++i) {
ring = &priv->rx_rings[i];
napi_enable(&ring->napi);
- ring->int_enable(ring);
+ bcmgenet_rx_ring_int_enable(ring);
}
-
- ring = &priv->rx_rings[DESC_INDEX];
- napi_enable(&ring->napi);
- ring->int_enable(ring);
}
static void bcmgenet_disable_rx_napi(struct bcmgenet_priv *priv)
@@ -2878,15 +2868,11 @@ static void bcmgenet_disable_rx_napi(struct bcmgenet_priv *priv)
unsigned int i;
struct bcmgenet_rx_ring *ring;
- for (i = 0; i < priv->hw_params->rx_queues; ++i) {
+ for (i = 0; i <= priv->hw_params->rx_queues; ++i) {
ring = &priv->rx_rings[i];
napi_disable(&ring->napi);
cancel_work_sync(&ring->dim.dim.work);
}
-
- ring = &priv->rx_rings[DESC_INDEX];
- napi_disable(&ring->napi);
- cancel_work_sync(&ring->dim.dim.work);
}
static void bcmgenet_fini_rx_napi(struct bcmgenet_priv *priv)
@@ -2894,13 +2880,10 @@ static void bcmgenet_fini_rx_napi(struct bcmgenet_priv *priv)
unsigned int i;
struct bcmgenet_rx_ring *ring;
- for (i = 0; i < priv->hw_params->rx_queues; ++i) {
+ for (i = 0; i <= priv->hw_params->rx_queues; ++i) {
ring = &priv->rx_rings[i];
netif_napi_del(&ring->napi);
}
-
- ring = &priv->rx_rings[DESC_INDEX];
- netif_napi_del(&ring->napi);
}
/* Initialize Rx queues
@@ -2908,57 +2891,32 @@ static void bcmgenet_fini_rx_napi(struct bcmgenet_priv *priv)
* Queues 0-15 are priority queues. Hardware Filtering Block (HFB) can be
* used to direct traffic to these queues.
*
- * Queue 16 is the default Rx queue with GENET_Q16_RX_BD_CNT descriptors.
+ * Queue 0 is also the default Rx queue with GENET_Q0_RX_BD_CNT descriptors.
*/
static int bcmgenet_init_rx_queues(struct net_device *dev)
{
struct bcmgenet_priv *priv = netdev_priv(dev);
- u32 i;
- u32 dma_enable;
- u32 dma_ctrl;
- u32 ring_cfg;
+ unsigned int start = 0, end = GENET_Q0_RX_BD_CNT;
+ u32 i, ring_mask;
int ret;
- dma_ctrl = bcmgenet_rdma_readl(priv, DMA_CTRL);
- dma_enable = dma_ctrl & DMA_EN;
- dma_ctrl &= ~DMA_EN;
- bcmgenet_rdma_writel(priv, dma_ctrl, DMA_CTRL);
-
- dma_ctrl = 0;
- ring_cfg = 0;
-
/* Initialize Rx priority queues */
- for (i = 0; i < priv->hw_params->rx_queues; i++) {
- ret = bcmgenet_init_rx_ring(priv, i,
- priv->hw_params->rx_bds_per_q,
- i * priv->hw_params->rx_bds_per_q,
- (i + 1) *
- priv->hw_params->rx_bds_per_q);
+ for (i = 0; i <= priv->hw_params->rx_queues; i++) {
+ ret = bcmgenet_init_rx_ring(priv, i, end - start, start, end);
if (ret)
return ret;
- ring_cfg |= (1 << i);
- dma_ctrl |= (1 << (i + DMA_RING_BUF_EN_SHIFT));
+ start = end;
+ end += priv->hw_params->rx_bds_per_q;
}
- /* Initialize Rx default queue 16 */
- ret = bcmgenet_init_rx_ring(priv, DESC_INDEX, GENET_Q16_RX_BD_CNT,
- priv->hw_params->rx_queues *
- priv->hw_params->rx_bds_per_q,
- TOTAL_DESC);
- if (ret)
- return ret;
-
- ring_cfg |= (1 << DESC_INDEX);
- dma_ctrl |= (1 << (DESC_INDEX + DMA_RING_BUF_EN_SHIFT));
-
- /* Enable rings */
- bcmgenet_rdma_writel(priv, ring_cfg, DMA_RING_CFG);
+ /* Configure Rx queues as descriptor rings */
+ ring_mask = (1 << (priv->hw_params->rx_queues + 1)) - 1;
+ bcmgenet_rdma_writel(priv, ring_mask, DMA_RING_CFG);
- /* Configure ring as descriptor ring and re-enable DMA if enabled */
- if (dma_enable)
- dma_ctrl |= DMA_EN;
- bcmgenet_rdma_writel(priv, dma_ctrl, DMA_CTRL);
+ /* Enable Rx rings */
+ ring_mask <<= DMA_RING_BUF_EN_SHIFT;
+ bcmgenet_rdma_writel(priv, ring_mask, DMA_CTRL);
return 0;
}
@@ -2966,26 +2924,9 @@ static int bcmgenet_init_rx_queues(struct net_device *dev)
static int bcmgenet_dma_teardown(struct bcmgenet_priv *priv)
{
int ret = 0;
- int timeout = 0;
- u32 reg;
- u32 dma_ctrl;
- int i;
/* Disable TDMA to stop add more frames in TX DMA */
- reg = bcmgenet_tdma_readl(priv, DMA_CTRL);
- reg &= ~DMA_EN;
- bcmgenet_tdma_writel(priv, reg, DMA_CTRL);
-
- /* Check TDMA status register to confirm TDMA is disabled */
- while (timeout++ < DMA_TIMEOUT_VAL) {
- reg = bcmgenet_tdma_readl(priv, DMA_STATUS);
- if (reg & DMA_DISABLED)
- break;
-
- udelay(1);
- }
-
- if (timeout == DMA_TIMEOUT_VAL) {
+ if (-ETIMEDOUT == bcmgenet_tdma_disable(priv)) {
netdev_warn(priv->dev, "Timed out while disabling TX DMA\n");
ret = -ETIMEDOUT;
}
@@ -2994,39 +2935,11 @@ static int bcmgenet_dma_teardown(struct bcmgenet_priv *priv)
usleep_range(10000, 20000);
/* Disable RDMA */
- reg = bcmgenet_rdma_readl(priv, DMA_CTRL);
- reg &= ~DMA_EN;
- bcmgenet_rdma_writel(priv, reg, DMA_CTRL);
-
- timeout = 0;
- /* Check RDMA status register to confirm RDMA is disabled */
- while (timeout++ < DMA_TIMEOUT_VAL) {
- reg = bcmgenet_rdma_readl(priv, DMA_STATUS);
- if (reg & DMA_DISABLED)
- break;
-
- udelay(1);
- }
-
- if (timeout == DMA_TIMEOUT_VAL) {
+ if (-ETIMEDOUT == bcmgenet_rdma_disable(priv)) {
netdev_warn(priv->dev, "Timed out while disabling RX DMA\n");
ret = -ETIMEDOUT;
}
- dma_ctrl = 0;
- for (i = 0; i < priv->hw_params->rx_queues; i++)
- dma_ctrl |= (1 << (i + DMA_RING_BUF_EN_SHIFT));
- reg = bcmgenet_rdma_readl(priv, DMA_CTRL);
- reg &= ~dma_ctrl;
- bcmgenet_rdma_writel(priv, reg, DMA_CTRL);
-
- dma_ctrl = 0;
- for (i = 0; i < priv->hw_params->tx_queues; i++)
- dma_ctrl |= (1 << (i + DMA_RING_BUF_EN_SHIFT));
- reg = bcmgenet_tdma_readl(priv, DMA_CTRL);
- reg &= ~dma_ctrl;
- bcmgenet_tdma_writel(priv, reg, DMA_CTRL);
-
return ret;
}
@@ -3038,32 +2951,53 @@ static void bcmgenet_fini_dma(struct bcmgenet_priv *priv)
bcmgenet_fini_rx_napi(priv);
bcmgenet_fini_tx_napi(priv);
- for (i = 0; i < priv->num_tx_bds; i++)
- dev_kfree_skb(bcmgenet_free_tx_cb(&priv->pdev->dev,
- priv->tx_cbs + i));
-
- for (i = 0; i < priv->hw_params->tx_queues; i++) {
- txq = netdev_get_tx_queue(priv->dev, priv->tx_rings[i].queue);
+ for (i = 0; i <= priv->hw_params->tx_queues; i++) {
+ txq = netdev_get_tx_queue(priv->dev, i);
netdev_tx_reset_queue(txq);
}
- txq = netdev_get_tx_queue(priv->dev, priv->tx_rings[DESC_INDEX].queue);
- netdev_tx_reset_queue(txq);
-
bcmgenet_free_rx_buffers(priv);
kfree(priv->rx_cbs);
kfree(priv->tx_cbs);
}
/* init_edma: Initialize DMA control register */
-static int bcmgenet_init_dma(struct bcmgenet_priv *priv)
+static int bcmgenet_init_dma(struct bcmgenet_priv *priv, bool flush_rx)
{
- int ret;
- unsigned int i;
struct enet_cb *cb;
+ unsigned int i;
+ int ret;
+ u32 reg;
netif_dbg(priv, hw, priv->dev, "%s\n", __func__);
+ /* Disable TX DMA */
+ ret = bcmgenet_tdma_disable(priv);
+ if (ret) {
+ netdev_err(priv->dev, "failed to halt Tx DMA\n");
+ return ret;
+ }
+
+ /* Disable RX DMA */
+ ret = bcmgenet_rdma_disable(priv);
+ if (ret) {
+ netdev_err(priv->dev, "failed to halt Rx DMA\n");
+ return ret;
+ }
+
+ /* Flush TX queues */
+ bcmgenet_umac_writel(priv, 1, UMAC_TX_FLUSH);
+ udelay(10);
+ bcmgenet_umac_writel(priv, 0, UMAC_TX_FLUSH);
+
+ if (flush_rx) {
+ reg = bcmgenet_rbuf_ctrl_get(priv);
+ bcmgenet_rbuf_ctrl_set(priv, reg | BIT(0));
+ udelay(10);
+ bcmgenet_rbuf_ctrl_set(priv, reg);
+ udelay(10);
+ }
+
/* Initialize common Rx ring structures */
priv->rx_bds = priv->base + priv->hw_params->rdma_offset;
priv->num_rx_bds = TOTAL_DESC;
@@ -3113,6 +3047,15 @@ static int bcmgenet_init_dma(struct bcmgenet_priv *priv)
/* Initialize Tx queues */
bcmgenet_init_tx_queues(priv->dev);
+ /* Enable RX/TX DMA */
+ reg = bcmgenet_rdma_readl(priv, DMA_CTRL);
+ reg |= DMA_EN;
+ bcmgenet_rdma_writel(priv, reg, DMA_CTRL);
+
+ reg = bcmgenet_tdma_readl(priv, DMA_CTRL);
+ reg |= DMA_EN;
+ bcmgenet_tdma_writel(priv, reg, DMA_CTRL);
+
return 0;
}
@@ -3142,7 +3085,7 @@ static void bcmgenet_irq_task(struct work_struct *work)
}
-/* bcmgenet_isr1: handle Rx and Tx priority queues */
+/* bcmgenet_isr1: handle Rx and Tx queues */
static irqreturn_t bcmgenet_isr1(int irq, void *dev_id)
{
struct bcmgenet_priv *priv = dev_id;
@@ -3161,7 +3104,7 @@ static irqreturn_t bcmgenet_isr1(int irq, void *dev_id)
"%s: IRQ=0x%x\n", __func__, status);
/* Check Rx priority queue interrupts */
- for (index = 0; index < priv->hw_params->rx_queues; index++) {
+ for (index = 0; index <= priv->hw_params->rx_queues; index++) {
if (!(status & BIT(UMAC_IRQ1_RX_INTR_SHIFT + index)))
continue;
@@ -3169,20 +3112,20 @@ static irqreturn_t bcmgenet_isr1(int irq, void *dev_id)
rx_ring->dim.event_ctr++;
if (likely(napi_schedule_prep(&rx_ring->napi))) {
- rx_ring->int_disable(rx_ring);
+ bcmgenet_rx_ring_int_disable(rx_ring);
__napi_schedule_irqoff(&rx_ring->napi);
}
}
/* Check Tx priority queue interrupts */
- for (index = 0; index < priv->hw_params->tx_queues; index++) {
+ for (index = 0; index <= priv->hw_params->tx_queues; index++) {
if (!(status & BIT(index)))
continue;
tx_ring = &priv->tx_rings[index];
if (likely(napi_schedule_prep(&tx_ring->napi))) {
- tx_ring->int_disable(tx_ring);
+ bcmgenet_tx_ring_int_disable(tx_ring);
__napi_schedule_irqoff(&tx_ring->napi);
}
}
@@ -3190,12 +3133,10 @@ static irqreturn_t bcmgenet_isr1(int irq, void *dev_id)
return IRQ_HANDLED;
}
-/* bcmgenet_isr0: handle Rx and Tx default queues + other stuff */
+/* bcmgenet_isr0: handle other stuff */
static irqreturn_t bcmgenet_isr0(int irq, void *dev_id)
{
struct bcmgenet_priv *priv = dev_id;
- struct bcmgenet_rx_ring *rx_ring;
- struct bcmgenet_tx_ring *tx_ring;
unsigned int status;
unsigned long flags;
@@ -3209,29 +3150,8 @@ static irqreturn_t bcmgenet_isr0(int irq, void *dev_id)
netif_dbg(priv, intr, priv->dev,
"IRQ=0x%x\n", status);
- if (status & UMAC_IRQ_RXDMA_DONE) {
- rx_ring = &priv->rx_rings[DESC_INDEX];
- rx_ring->dim.event_ctr++;
-
- if (likely(napi_schedule_prep(&rx_ring->napi))) {
- rx_ring->int_disable(rx_ring);
- __napi_schedule_irqoff(&rx_ring->napi);
- }
- }
-
- if (status & UMAC_IRQ_TXDMA_DONE) {
- tx_ring = &priv->tx_rings[DESC_INDEX];
-
- if (likely(napi_schedule_prep(&tx_ring->napi))) {
- tx_ring->int_disable(tx_ring);
- __napi_schedule_irqoff(&tx_ring->napi);
- }
- }
-
- if ((priv->hw_params->flags & GENET_HAS_MDIO_INTR) &&
- status & (UMAC_IRQ_MDIO_DONE | UMAC_IRQ_MDIO_ERROR)) {
+ if (bcmgenet_has_mdio_intr(priv) && status & UMAC_IRQ_MDIO_EVENT)
wake_up(&priv->wq);
- }
/* all other interested interrupts handled in bottom half */
status &= (UMAC_IRQ_LINK_EVENT | UMAC_IRQ_PHY_DET_R);
@@ -3285,56 +3205,6 @@ static void bcmgenet_get_hw_addr(struct bcmgenet_priv *priv,
put_unaligned_be16(addr_tmp, &addr[4]);
}
-/* Returns a reusable dma control register value */
-static u32 bcmgenet_dma_disable(struct bcmgenet_priv *priv, bool flush_rx)
-{
- unsigned int i;
- u32 reg;
- u32 dma_ctrl;
-
- /* disable DMA */
- dma_ctrl = 1 << (DESC_INDEX + DMA_RING_BUF_EN_SHIFT) | DMA_EN;
- for (i = 0; i < priv->hw_params->tx_queues; i++)
- dma_ctrl |= (1 << (i + DMA_RING_BUF_EN_SHIFT));
- reg = bcmgenet_tdma_readl(priv, DMA_CTRL);
- reg &= ~dma_ctrl;
- bcmgenet_tdma_writel(priv, reg, DMA_CTRL);
-
- dma_ctrl = 1 << (DESC_INDEX + DMA_RING_BUF_EN_SHIFT) | DMA_EN;
- for (i = 0; i < priv->hw_params->rx_queues; i++)
- dma_ctrl |= (1 << (i + DMA_RING_BUF_EN_SHIFT));
- reg = bcmgenet_rdma_readl(priv, DMA_CTRL);
- reg &= ~dma_ctrl;
- bcmgenet_rdma_writel(priv, reg, DMA_CTRL);
-
- bcmgenet_umac_writel(priv, 1, UMAC_TX_FLUSH);
- udelay(10);
- bcmgenet_umac_writel(priv, 0, UMAC_TX_FLUSH);
-
- if (flush_rx) {
- reg = bcmgenet_rbuf_ctrl_get(priv);
- bcmgenet_rbuf_ctrl_set(priv, reg | BIT(0));
- udelay(10);
- bcmgenet_rbuf_ctrl_set(priv, reg);
- udelay(10);
- }
-
- return dma_ctrl;
-}
-
-static void bcmgenet_enable_dma(struct bcmgenet_priv *priv, u32 dma_ctrl)
-{
- u32 reg;
-
- reg = bcmgenet_rdma_readl(priv, DMA_CTRL);
- reg |= dma_ctrl;
- bcmgenet_rdma_writel(priv, reg, DMA_CTRL);
-
- reg = bcmgenet_tdma_readl(priv, DMA_CTRL);
- reg |= dma_ctrl;
- bcmgenet_tdma_writel(priv, reg, DMA_CTRL);
-}
-
static void bcmgenet_netif_start(struct net_device *dev)
{
struct bcmgenet_priv *priv = netdev_priv(dev);
@@ -3358,7 +3228,6 @@ static void bcmgenet_netif_start(struct net_device *dev)
static int bcmgenet_open(struct net_device *dev)
{
struct bcmgenet_priv *priv = netdev_priv(dev);
- unsigned long dma_ctrl;
int ret;
netif_dbg(priv, ifup, dev, "bcmgenet_open\n");
@@ -3384,22 +3253,16 @@ static int bcmgenet_open(struct net_device *dev)
bcmgenet_set_hw_addr(priv, dev->dev_addr);
- /* Disable RX/TX DMA and flush TX and RX queues */
- dma_ctrl = bcmgenet_dma_disable(priv, true);
+ /* HFB init */
+ bcmgenet_hfb_init(priv);
/* Reinitialize TDMA and RDMA and SW housekeeping */
- ret = bcmgenet_init_dma(priv);
+ ret = bcmgenet_init_dma(priv, true);
if (ret) {
netdev_err(dev, "failed to initialize DMA\n");
goto err_clk_disable;
}
- /* Always enable ring 16 - descriptor ring */
- bcmgenet_enable_dma(priv, dma_ctrl);
-
- /* HFB init */
- bcmgenet_hfb_init(priv);
-
ret = request_irq(priv->irq0, bcmgenet_isr0, IRQF_SHARED,
dev->name, priv);
if (ret < 0) {
@@ -3446,19 +3309,21 @@ static void bcmgenet_netif_stop(struct net_device *dev, bool stop_phy)
{
struct bcmgenet_priv *priv = netdev_priv(dev);
- bcmgenet_disable_tx_napi(priv);
netif_tx_disable(dev);
/* Disable MAC receive */
+ bcmgenet_hfb_reg_writel(priv, 0, HFB_CTRL);
umac_enable_set(priv, CMD_RX_EN, false);
+ if (stop_phy)
+ phy_stop(dev->phydev);
+
bcmgenet_dma_teardown(priv);
/* Disable MAC transmit. TX DMA disabled must be done before this */
umac_enable_set(priv, CMD_TX_EN, false);
- if (stop_phy)
- phy_stop(dev->phydev);
+ bcmgenet_disable_tx_napi(priv);
bcmgenet_disable_rx_napi(priv);
bcmgenet_intr_disable(priv);
@@ -3506,16 +3371,11 @@ static void bcmgenet_dump_tx_queue(struct bcmgenet_tx_ring *ring)
if (!netif_msg_tx_err(priv))
return;
- txq = netdev_get_tx_queue(priv->dev, ring->queue);
+ txq = netdev_get_tx_queue(priv->dev, ring->index);
spin_lock(&ring->lock);
- if (ring->index == DESC_INDEX) {
- intsts = ~bcmgenet_intrl2_0_readl(priv, INTRL2_CPU_MASK_STATUS);
- intmsk = UMAC_IRQ_TXDMA_DONE | UMAC_IRQ_TXDMA_MBDONE;
- } else {
- intsts = ~bcmgenet_intrl2_1_readl(priv, INTRL2_CPU_MASK_STATUS);
- intmsk = 1 << ring->index;
- }
+ intsts = ~bcmgenet_intrl2_1_readl(priv, INTRL2_CPU_MASK_STATUS);
+ intmsk = 1 << ring->index;
c_index = bcmgenet_tdma_ring_readl(priv, ring->index, TDMA_CONS_INDEX);
p_index = bcmgenet_tdma_ring_readl(priv, ring->index, TDMA_PROD_INDEX);
txq_stopped = netif_tx_queue_stopped(txq);
@@ -3529,7 +3389,7 @@ static void bcmgenet_dump_tx_queue(struct bcmgenet_tx_ring *ring)
"(sw)c_index: %d (hw)c_index: %d\n"
"(sw)clean_p: %d (sw)write_p: %d\n"
"(sw)cb_ptr: %d (sw)end_ptr: %d\n",
- ring->index, ring->queue,
+ ring->index, ring->index,
txq_stopped ? "stopped" : "active",
intsts & intmsk ? "enabled" : "disabled",
free_bds, ring->size,
@@ -3542,25 +3402,20 @@ static void bcmgenet_dump_tx_queue(struct bcmgenet_tx_ring *ring)
static void bcmgenet_timeout(struct net_device *dev, unsigned int txqueue)
{
struct bcmgenet_priv *priv = netdev_priv(dev);
- u32 int0_enable = 0;
u32 int1_enable = 0;
unsigned int q;
netif_dbg(priv, tx_err, dev, "bcmgenet_timeout\n");
- for (q = 0; q < priv->hw_params->tx_queues; q++)
+ for (q = 0; q <= priv->hw_params->tx_queues; q++)
bcmgenet_dump_tx_queue(&priv->tx_rings[q]);
- bcmgenet_dump_tx_queue(&priv->tx_rings[DESC_INDEX]);
bcmgenet_tx_reclaim_all(dev);
- for (q = 0; q < priv->hw_params->tx_queues; q++)
+ for (q = 0; q <= priv->hw_params->tx_queues; q++)
int1_enable |= (1 << q);
- int0_enable = UMAC_IRQ_TXDMA_DONE;
-
/* Re-enable TX interrupts if disabled */
- bcmgenet_intrl2_0_writel(priv, int0_enable, INTRL2_CPU_MASK_CLEAR);
bcmgenet_intrl2_1_writel(priv, int1_enable, INTRL2_CPU_MASK_CLEAR);
netif_trans_update(dev);
@@ -3664,16 +3519,13 @@ static struct net_device_stats *bcmgenet_get_stats(struct net_device *dev)
struct bcmgenet_rx_ring *rx_ring;
unsigned int q;
- for (q = 0; q < priv->hw_params->tx_queues; q++) {
+ for (q = 0; q <= priv->hw_params->tx_queues; q++) {
tx_ring = &priv->tx_rings[q];
tx_bytes += tx_ring->bytes;
tx_packets += tx_ring->packets;
}
- tx_ring = &priv->tx_rings[DESC_INDEX];
- tx_bytes += tx_ring->bytes;
- tx_packets += tx_ring->packets;
- for (q = 0; q < priv->hw_params->rx_queues; q++) {
+ for (q = 0; q <= priv->hw_params->rx_queues; q++) {
rx_ring = &priv->rx_rings[q];
rx_bytes += rx_ring->bytes;
@@ -3681,11 +3533,6 @@ static struct net_device_stats *bcmgenet_get_stats(struct net_device *dev)
rx_errors += rx_ring->errors;
rx_dropped += rx_ring->dropped;
}
- rx_ring = &priv->rx_rings[DESC_INDEX];
- rx_bytes += rx_ring->bytes;
- rx_packets += rx_ring->packets;
- rx_errors += rx_ring->errors;
- rx_dropped += rx_ring->dropped;
dev->stats.tx_bytes = tx_bytes;
dev->stats.tx_packets = tx_packets;
@@ -3726,128 +3573,109 @@ static const struct net_device_ops bcmgenet_netdev_ops = {
.ndo_change_carrier = bcmgenet_change_carrier,
};
-/* Array of GENET hardware parameters/characteristics */
-static struct bcmgenet_hw_params bcmgenet_hw_params[] = {
- [GENET_V1] = {
- .tx_queues = 0,
- .tx_bds_per_q = 0,
- .rx_queues = 0,
- .rx_bds_per_q = 0,
- .bp_in_en_shift = 16,
- .bp_in_mask = 0xffff,
- .hfb_filter_cnt = 16,
- .qtag_mask = 0x1F,
- .hfb_offset = 0x1000,
- .rdma_offset = 0x2000,
- .tdma_offset = 0x3000,
- .words_per_bd = 2,
- },
- [GENET_V2] = {
- .tx_queues = 4,
- .tx_bds_per_q = 32,
- .rx_queues = 0,
- .rx_bds_per_q = 0,
- .bp_in_en_shift = 16,
- .bp_in_mask = 0xffff,
- .hfb_filter_cnt = 16,
- .qtag_mask = 0x1F,
- .tbuf_offset = 0x0600,
- .hfb_offset = 0x1000,
- .hfb_reg_offset = 0x2000,
- .rdma_offset = 0x3000,
- .tdma_offset = 0x4000,
- .words_per_bd = 2,
- .flags = GENET_HAS_EXT,
- },
- [GENET_V3] = {
- .tx_queues = 4,
- .tx_bds_per_q = 32,
- .rx_queues = 0,
- .rx_bds_per_q = 0,
- .bp_in_en_shift = 17,
- .bp_in_mask = 0x1ffff,
- .hfb_filter_cnt = 48,
- .hfb_filter_size = 128,
- .qtag_mask = 0x3F,
- .tbuf_offset = 0x0600,
- .hfb_offset = 0x8000,
- .hfb_reg_offset = 0xfc00,
- .rdma_offset = 0x10000,
- .tdma_offset = 0x11000,
- .words_per_bd = 2,
- .flags = GENET_HAS_EXT | GENET_HAS_MDIO_INTR |
- GENET_HAS_MOCA_LINK_DET,
- },
- [GENET_V4] = {
- .tx_queues = 4,
- .tx_bds_per_q = 32,
- .rx_queues = 0,
- .rx_bds_per_q = 0,
- .bp_in_en_shift = 17,
- .bp_in_mask = 0x1ffff,
- .hfb_filter_cnt = 48,
- .hfb_filter_size = 128,
- .qtag_mask = 0x3F,
- .tbuf_offset = 0x0600,
- .hfb_offset = 0x8000,
- .hfb_reg_offset = 0xfc00,
- .rdma_offset = 0x2000,
- .tdma_offset = 0x4000,
- .words_per_bd = 3,
- .flags = GENET_HAS_40BITS | GENET_HAS_EXT |
- GENET_HAS_MDIO_INTR | GENET_HAS_MOCA_LINK_DET,
- },
- [GENET_V5] = {
- .tx_queues = 4,
- .tx_bds_per_q = 32,
- .rx_queues = 0,
- .rx_bds_per_q = 0,
- .bp_in_en_shift = 17,
- .bp_in_mask = 0x1ffff,
- .hfb_filter_cnt = 48,
- .hfb_filter_size = 128,
- .qtag_mask = 0x3F,
- .tbuf_offset = 0x0600,
- .hfb_offset = 0x8000,
- .hfb_reg_offset = 0xfc00,
- .rdma_offset = 0x2000,
- .tdma_offset = 0x4000,
- .words_per_bd = 3,
- .flags = GENET_HAS_40BITS | GENET_HAS_EXT |
- GENET_HAS_MDIO_INTR | GENET_HAS_MOCA_LINK_DET,
- },
+/* GENET hardware parameters/characteristics */
+static const struct bcmgenet_hw_params bcmgenet_hw_params_v1 = {
+ .tx_queues = 0,
+ .tx_bds_per_q = 0,
+ .rx_queues = 0,
+ .rx_bds_per_q = 0,
+ .bp_in_en_shift = 16,
+ .bp_in_mask = 0xffff,
+ .hfb_filter_cnt = 16,
+ .hfb_filter_size = 64,
+ .qtag_mask = 0x1F,
+ .hfb_offset = 0x1000,
+ .hfb_reg_offset = GENET_RBUF_OFF + RBUF_HFB_CTRL_V1,
+ .rdma_offset = 0x2000,
+ .tdma_offset = 0x3000,
+ .words_per_bd = 2,
+};
+
+static const struct bcmgenet_hw_params bcmgenet_hw_params_v2 = {
+ .tx_queues = 4,
+ .tx_bds_per_q = 32,
+ .rx_queues = 0,
+ .rx_bds_per_q = 0,
+ .bp_in_en_shift = 16,
+ .bp_in_mask = 0xffff,
+ .hfb_filter_cnt = 16,
+ .hfb_filter_size = 64,
+ .qtag_mask = 0x1F,
+ .tbuf_offset = 0x0600,
+ .hfb_offset = 0x1000,
+ .hfb_reg_offset = 0x2000,
+ .rdma_offset = 0x3000,
+ .tdma_offset = 0x4000,
+ .words_per_bd = 2,
+};
+
+static const struct bcmgenet_hw_params bcmgenet_hw_params_v3 = {
+ .tx_queues = 4,
+ .tx_bds_per_q = 32,
+ .rx_queues = 0,
+ .rx_bds_per_q = 0,
+ .bp_in_en_shift = 17,
+ .bp_in_mask = 0x1ffff,
+ .hfb_filter_cnt = 48,
+ .hfb_filter_size = 128,
+ .qtag_mask = 0x3F,
+ .tbuf_offset = 0x0600,
+ .hfb_offset = 0x8000,
+ .hfb_reg_offset = 0xfc00,
+ .rdma_offset = 0x10000,
+ .tdma_offset = 0x11000,
+ .words_per_bd = 2,
+};
+
+static const struct bcmgenet_hw_params bcmgenet_hw_params_v4 = {
+ .tx_queues = 4,
+ .tx_bds_per_q = 32,
+ .rx_queues = 0,
+ .rx_bds_per_q = 0,
+ .bp_in_en_shift = 17,
+ .bp_in_mask = 0x1ffff,
+ .hfb_filter_cnt = 48,
+ .hfb_filter_size = 128,
+ .qtag_mask = 0x3F,
+ .tbuf_offset = 0x0600,
+ .hfb_offset = 0x8000,
+ .hfb_reg_offset = 0xfc00,
+ .rdma_offset = 0x2000,
+ .tdma_offset = 0x4000,
+ .words_per_bd = 3,
};
/* Infer hardware parameters from the detected GENET version */
static void bcmgenet_set_hw_params(struct bcmgenet_priv *priv)
{
- struct bcmgenet_hw_params *params;
+ const struct bcmgenet_hw_params *params;
u32 reg;
u8 major;
u16 gphy_rev;
- if (GENET_IS_V5(priv) || GENET_IS_V4(priv)) {
- bcmgenet_dma_regs = bcmgenet_dma_regs_v3plus;
- genet_dma_ring_regs = genet_dma_ring_regs_v4;
- } else if (GENET_IS_V3(priv)) {
+ /* default to latest values */
+ params = &bcmgenet_hw_params_v4;
+ bcmgenet_dma_regs = bcmgenet_dma_regs_v3plus;
+ genet_dma_ring_regs = genet_dma_ring_regs_v4;
+ if (GENET_IS_V3(priv)) {
+ params = &bcmgenet_hw_params_v3;
bcmgenet_dma_regs = bcmgenet_dma_regs_v3plus;
genet_dma_ring_regs = genet_dma_ring_regs_v123;
} else if (GENET_IS_V2(priv)) {
+ params = &bcmgenet_hw_params_v2;
bcmgenet_dma_regs = bcmgenet_dma_regs_v2;
genet_dma_ring_regs = genet_dma_ring_regs_v123;
} else if (GENET_IS_V1(priv)) {
+ params = &bcmgenet_hw_params_v1;
bcmgenet_dma_regs = bcmgenet_dma_regs_v1;
genet_dma_ring_regs = genet_dma_ring_regs_v123;
}
-
- /* enum genet_version starts at 1 */
- priv->hw_params = &bcmgenet_hw_params[priv->version];
- params = priv->hw_params;
+ priv->hw_params = params;
/* Read GENET HW version */
reg = bcmgenet_sys_readl(priv, SYS_REV_CTRL);
major = (reg >> 24 & 0x0f);
- if (major == 6)
+ if (major == 6 || major == 7)
major = 5;
else if (major == 5)
major = 4;
@@ -3898,7 +3726,7 @@ static void bcmgenet_set_hw_params(struct bcmgenet_priv *priv)
}
#ifdef CONFIG_PHYS_ADDR_T_64BIT
- if (!(params->flags & GENET_HAS_40BITS))
+ if (!bcmgenet_has_40bits(priv))
pr_warn("GENET does not support 40-bits PA\n");
#endif
@@ -3923,7 +3751,7 @@ static void bcmgenet_set_hw_params(struct bcmgenet_priv *priv)
struct bcmgenet_plat_data {
enum bcmgenet_version version;
u32 dma_max_burst_length;
- bool ephy_16nm;
+ u32 flags;
};
static const struct bcmgenet_plat_data v1_plat_data = {
@@ -3934,32 +3762,43 @@ static const struct bcmgenet_plat_data v1_plat_data = {
static const struct bcmgenet_plat_data v2_plat_data = {
.version = GENET_V2,
.dma_max_burst_length = DMA_MAX_BURST_LENGTH,
+ .flags = GENET_HAS_EXT,
};
static const struct bcmgenet_plat_data v3_plat_data = {
.version = GENET_V3,
.dma_max_burst_length = DMA_MAX_BURST_LENGTH,
+ .flags = GENET_HAS_EXT | GENET_HAS_MDIO_INTR |
+ GENET_HAS_MOCA_LINK_DET,
};
static const struct bcmgenet_plat_data v4_plat_data = {
.version = GENET_V4,
.dma_max_burst_length = DMA_MAX_BURST_LENGTH,
+ .flags = GENET_HAS_40BITS | GENET_HAS_EXT |
+ GENET_HAS_MDIO_INTR | GENET_HAS_MOCA_LINK_DET,
};
static const struct bcmgenet_plat_data v5_plat_data = {
.version = GENET_V5,
.dma_max_burst_length = DMA_MAX_BURST_LENGTH,
+ .flags = GENET_HAS_40BITS | GENET_HAS_EXT |
+ GENET_HAS_MDIO_INTR | GENET_HAS_MOCA_LINK_DET,
};
static const struct bcmgenet_plat_data bcm2711_plat_data = {
.version = GENET_V5,
.dma_max_burst_length = 0x08,
+ .flags = GENET_HAS_40BITS | GENET_HAS_EXT |
+ GENET_HAS_MDIO_INTR | GENET_HAS_MOCA_LINK_DET,
};
static const struct bcmgenet_plat_data bcm7712_plat_data = {
.version = GENET_V5,
.dma_max_burst_length = DMA_MAX_BURST_LENGTH,
- .ephy_16nm = true,
+ .flags = GENET_HAS_40BITS | GENET_HAS_EXT |
+ GENET_HAS_MDIO_INTR | GENET_HAS_MOCA_LINK_DET |
+ GENET_HAS_EPHY_16NM,
};
static const struct of_device_id bcmgenet_match[] = {
@@ -4057,7 +3896,7 @@ static int bcmgenet_probe(struct platform_device *pdev)
if (pdata) {
priv->version = pdata->version;
priv->dma_max_burst_length = pdata->dma_max_burst_length;
- priv->ephy_16nm = pdata->ephy_16nm;
+ priv->flags = pdata->flags;
} else {
priv->version = pd->genet_version;
priv->dma_max_burst_length = DMA_MAX_BURST_LENGTH;
@@ -4077,7 +3916,7 @@ static int bcmgenet_probe(struct platform_device *pdev)
bcmgenet_set_hw_params(priv);
err = -EIO;
- if (priv->hw_params->flags & GENET_HAS_40BITS)
+ if (bcmgenet_has_40bits(priv))
err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(40));
if (err)
err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
@@ -4132,16 +3971,13 @@ static int bcmgenet_probe(struct platform_device *pdev)
if (err)
goto err_clk_disable;
- /* setup number of real queues + 1 (GENET_V1 has 0 hardware queues
- * just the ring 16 descriptor based TX
- */
+ /* setup number of real queues + 1 */
netif_set_real_num_tx_queues(priv->dev, priv->hw_params->tx_queues + 1);
netif_set_real_num_rx_queues(priv->dev, priv->hw_params->rx_queues + 1);
/* Set default coalescing parameters */
- for (i = 0; i < priv->hw_params->rx_queues; i++)
+ for (i = 0; i <= priv->hw_params->rx_queues; i++)
priv->rx_rings[i].rx_max_coalesced_frames = 1;
- priv->rx_rings[DESC_INDEX].rx_max_coalesced_frames = 1;
/* libphy will determine the link state */
netif_carrier_off(dev);
@@ -4205,9 +4041,22 @@ static int bcmgenet_resume_noirq(struct device *d)
reg = bcmgenet_intrl2_0_readl(priv, INTRL2_CPU_STAT);
if (reg & UMAC_IRQ_WAKE_EVENT)
pm_wakeup_event(&priv->pdev->dev, 0);
+
+ /* From WOL-enabled suspend, switch to regular clock */
+ if (!bcmgenet_power_up(priv, GENET_POWER_WOL_MAGIC))
+ return 0;
+
+ /* Failed so fall through to reset MAC */
}
- bcmgenet_intrl2_0_writel(priv, UMAC_IRQ_WAKE_EVENT, INTRL2_CPU_CLEAR);
+ /* If this is an internal GPHY, power it back on now, before UniMAC is
+ * brought out of reset as absolutely no UniMAC activity is allowed
+ */
+ if (priv->internal_phy)
+ bcmgenet_power_up(priv, GENET_POWER_PASSIVE);
+
+ /* take MAC out of reset */
+ bcmgenet_umac_reset(priv);
return 0;
}
@@ -4217,23 +4066,46 @@ static int bcmgenet_resume(struct device *d)
struct net_device *dev = dev_get_drvdata(d);
struct bcmgenet_priv *priv = netdev_priv(dev);
struct bcmgenet_rxnfc_rule *rule;
- unsigned long dma_ctrl;
int ret;
+ u32 reg;
if (!netif_running(dev))
return 0;
- /* From WOL-enabled suspend, switch to regular clock */
- if (device_may_wakeup(d) && priv->wolopts)
- bcmgenet_power_up(priv, GENET_POWER_WOL_MAGIC);
-
- /* If this is an internal GPHY, power it back on now, before UniMAC is
- * brought out of reset as absolutely no UniMAC activity is allowed
- */
- if (priv->internal_phy)
- bcmgenet_power_up(priv, GENET_POWER_PASSIVE);
-
- bcmgenet_umac_reset(priv);
+ if (device_may_wakeup(d) && priv->wolopts) {
+ reg = bcmgenet_umac_readl(priv, UMAC_CMD);
+ if (reg & CMD_RX_EN) {
+ /* Successfully exited WoL, just resume data flows */
+ list_for_each_entry(rule, &priv->rxnfc_list, list)
+ if (rule->state == BCMGENET_RXNFC_STATE_ENABLED)
+ bcmgenet_hfb_enable_filter(priv,
+ rule->fs.location + 1);
+ bcmgenet_hfb_enable_filter(priv, 0);
+ bcmgenet_set_rx_mode(dev);
+ bcmgenet_enable_rx_napi(priv);
+
+ /* Reinitialize Tx flows */
+ bcmgenet_tdma_disable(priv);
+ bcmgenet_init_tx_queues(priv->dev);
+ reg = bcmgenet_tdma_readl(priv, DMA_CTRL);
+ reg |= DMA_EN;
+ bcmgenet_tdma_writel(priv, reg, DMA_CTRL);
+ bcmgenet_enable_tx_napi(priv);
+
+ bcmgenet_link_intr_enable(priv);
+ phy_start_machine(dev->phydev);
+
+ netif_device_attach(dev);
+ enable_irq(priv->irq1);
+ return 0;
+ }
+ /* MAC was reset so complete bcmgenet_netif_stop() */
+ umac_enable_set(priv, CMD_RX_EN | CMD_TX_EN, false);
+ bcmgenet_rdma_disable(priv);
+ bcmgenet_intr_disable(priv);
+ bcmgenet_fini_dma(priv);
+ enable_irq(priv->irq1);
+ }
init_umac(priv);
@@ -4254,19 +4126,13 @@ static int bcmgenet_resume(struct device *d)
if (rule->state != BCMGENET_RXNFC_STATE_UNUSED)
bcmgenet_hfb_create_rxnfc_filter(priv, rule);
- /* Disable RX/TX DMA and flush TX queues */
- dma_ctrl = bcmgenet_dma_disable(priv, false);
-
/* Reinitialize TDMA and RDMA and SW housekeeping */
- ret = bcmgenet_init_dma(priv);
+ ret = bcmgenet_init_dma(priv, false);
if (ret) {
netdev_err(dev, "failed to initialize DMA\n");
goto out_clk_disable;
}
- /* Always enable ring 16 - descriptor ring */
- bcmgenet_enable_dma(priv, dma_ctrl);
-
if (!device_may_wakeup(d))
phy_resume(dev->phydev);
@@ -4287,19 +4153,52 @@ static int bcmgenet_suspend(struct device *d)
{
struct net_device *dev = dev_get_drvdata(d);
struct bcmgenet_priv *priv = netdev_priv(dev);
+ struct bcmgenet_rxnfc_rule *rule;
+ u32 reg, hfb_enable = 0;
if (!netif_running(dev))
return 0;
netif_device_detach(dev);
- bcmgenet_netif_stop(dev, true);
+ if (device_may_wakeup(d) && priv->wolopts) {
+ netif_tx_disable(dev);
+
+ /* Suspend non-wake Rx data flows */
+ if (priv->wolopts & WAKE_FILTER)
+ list_for_each_entry(rule, &priv->rxnfc_list, list)
+ if (rule->fs.ring_cookie == RX_CLS_FLOW_WAKE &&
+ rule->state == BCMGENET_RXNFC_STATE_ENABLED)
+ hfb_enable |= 1 << rule->fs.location;
+ reg = bcmgenet_hfb_reg_readl(priv, HFB_CTRL);
+ if (GENET_IS_V1(priv) || GENET_IS_V2(priv)) {
+ reg &= ~RBUF_HFB_FILTER_EN_MASK;
+ reg |= hfb_enable << (RBUF_HFB_FILTER_EN_SHIFT + 1);
+ } else {
+ bcmgenet_hfb_reg_writel(priv, hfb_enable << 1,
+ HFB_FLT_ENABLE_V3PLUS + 4);
+ }
+ if (!hfb_enable)
+ reg &= ~RBUF_HFB_EN;
+ bcmgenet_hfb_reg_writel(priv, reg, HFB_CTRL);
- if (!device_may_wakeup(d))
- phy_suspend(dev->phydev);
+ /* Clear any old filter matches so only new matches wake */
+ bcmgenet_intrl2_0_writel(priv, 0xFFFFFFFF, INTRL2_CPU_MASK_SET);
+ bcmgenet_intrl2_0_writel(priv, 0xFFFFFFFF, INTRL2_CPU_CLEAR);
- /* Disable filtering */
- bcmgenet_hfb_reg_writel(priv, 0, HFB_CTRL);
+ if (-ETIMEDOUT == bcmgenet_tdma_disable(priv))
+ netdev_warn(priv->dev,
+ "Timed out while disabling TX DMA\n");
+
+ bcmgenet_disable_tx_napi(priv);
+ bcmgenet_disable_rx_napi(priv);
+ disable_irq(priv->irq1);
+ bcmgenet_tx_reclaim_all(dev);
+ bcmgenet_fini_tx_napi(priv);
+ } else {
+ /* Teardown the interface */
+ bcmgenet_netif_stop(dev, true);
+ }
return 0;
}
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.h b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
index 43b923c48b14..10c631bbe964 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.h
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
- * Copyright (c) 2014-2024 Broadcom
+ * Copyright (c) 2014-2025 Broadcom
*/
#ifndef __BCMGENET_H__
@@ -18,6 +18,9 @@
#include "../unimac.h"
+/* Maximum number of hardware queues, downsized if needed */
+#define GENET_MAX_MQ_CNT 4
+
/* total number of Buffer Descriptors, same for Rx/Tx */
#define TOTAL_DESC 256
@@ -271,6 +274,8 @@ struct bcmgenet_mib_counters {
/* Only valid for GENETv3+ */
#define UMAC_IRQ_MDIO_DONE (1 << 23)
#define UMAC_IRQ_MDIO_ERROR (1 << 24)
+#define UMAC_IRQ_MDIO_EVENT (UMAC_IRQ_MDIO_DONE | \
+ UMAC_IRQ_MDIO_ERROR)
/* INTRL2 instance 1 definitions */
#define UMAC_IRQ1_TX_INTR_MASK 0xFFFF
@@ -476,6 +481,7 @@ enum bcmgenet_version {
#define GENET_HAS_EXT (1 << 1)
#define GENET_HAS_MDIO_INTR (1 << 2)
#define GENET_HAS_MOCA_LINK_DET (1 << 3)
+#define GENET_HAS_EPHY_16NM (1 << 4)
/* BCMGENET hardware parameters, keep this structure nicely aligned
* since it is going to be used in hot paths
@@ -496,7 +502,6 @@ struct bcmgenet_hw_params {
u32 rdma_offset;
u32 tdma_offset;
u32 words_per_bd;
- u32 flags;
};
struct bcmgenet_skb_cb {
@@ -513,7 +518,6 @@ struct bcmgenet_tx_ring {
unsigned long packets;
unsigned long bytes;
unsigned int index; /* ring index */
- unsigned int queue; /* queue index */
struct enet_cb *cbs; /* tx ring buffer control block*/
unsigned int size; /* size of each tx ring */
unsigned int clean_ptr; /* Tx ring clean pointer */
@@ -523,8 +527,6 @@ struct bcmgenet_tx_ring {
unsigned int prod_index; /* Tx ring producer index SW copy */
unsigned int cb_ptr; /* Tx ring initial CB ptr */
unsigned int end_ptr; /* Tx ring end CB ptr */
- void (*int_enable)(struct bcmgenet_tx_ring *);
- void (*int_disable)(struct bcmgenet_tx_ring *);
struct bcmgenet_priv *priv;
};
@@ -553,8 +555,6 @@ struct bcmgenet_rx_ring {
struct bcmgenet_net_dim dim;
u32 rx_max_coalesced_frames;
u32 rx_coalesce_usecs;
- void (*int_enable)(struct bcmgenet_rx_ring *);
- void (*int_disable)(struct bcmgenet_rx_ring *);
struct bcmgenet_priv *priv;
};
@@ -583,7 +583,7 @@ struct bcmgenet_priv {
struct enet_cb *tx_cbs;
unsigned int num_tx_bds;
- struct bcmgenet_tx_ring tx_rings[DESC_INDEX + 1];
+ struct bcmgenet_tx_ring tx_rings[GENET_MAX_MQ_CNT + 1];
/* receive variables */
void __iomem *rx_bds;
@@ -593,10 +593,11 @@ struct bcmgenet_priv {
struct bcmgenet_rxnfc_rule rxnfc_rules[MAX_NUM_OF_FS_RULES];
struct list_head rxnfc_list;
- struct bcmgenet_rx_ring rx_rings[DESC_INDEX + 1];
+ struct bcmgenet_rx_ring rx_rings[GENET_MAX_MQ_CNT + 1];
/* other misc variables */
- struct bcmgenet_hw_params *hw_params;
+ const struct bcmgenet_hw_params *hw_params;
+ u32 flags;
unsigned autoneg_pause:1;
unsigned tx_pause:1;
unsigned rx_pause:1;
@@ -615,7 +616,6 @@ struct bcmgenet_priv {
phy_interface_t phy_interface;
int phy_addr;
int ext_phy;
- bool ephy_16nm;
/* Interrupt variables */
struct work_struct bcmgenet_irq_work;
@@ -643,13 +643,37 @@ struct bcmgenet_priv {
struct clk *clk_wol;
u32 wolopts;
u8 sopass[SOPASS_MAX];
- bool wol_active;
struct bcmgenet_mib_counters mib;
struct ethtool_keee eee;
};
+static inline bool bcmgenet_has_40bits(struct bcmgenet_priv *priv)
+{
+ return !!(priv->flags & GENET_HAS_40BITS);
+}
+
+static inline bool bcmgenet_has_ext(struct bcmgenet_priv *priv)
+{
+ return !!(priv->flags & GENET_HAS_EXT);
+}
+
+static inline bool bcmgenet_has_mdio_intr(struct bcmgenet_priv *priv)
+{
+ return !!(priv->flags & GENET_HAS_MDIO_INTR);
+}
+
+static inline bool bcmgenet_has_moca_link_det(struct bcmgenet_priv *priv)
+{
+ return !!(priv->flags & GENET_HAS_MOCA_LINK_DET);
+}
+
+static inline bool bcmgenet_has_ephy_16nm(struct bcmgenet_priv *priv)
+{
+ return !!(priv->flags & GENET_HAS_EPHY_16NM);
+}
+
#define GENET_IO_MACRO(name, offset) \
static inline u32 bcmgenet_##name##_readl(struct bcmgenet_priv *priv, \
u32 off) \
@@ -702,8 +726,8 @@ void bcmgenet_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol);
int bcmgenet_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol);
int bcmgenet_wol_power_down_cfg(struct bcmgenet_priv *priv,
enum bcmgenet_power_mode mode);
-void bcmgenet_wol_power_up_cfg(struct bcmgenet_priv *priv,
- enum bcmgenet_power_mode mode);
+int bcmgenet_wol_power_up_cfg(struct bcmgenet_priv *priv,
+ enum bcmgenet_power_mode mode);
void bcmgenet_eee_enable_set(struct net_device *dev, bool enable,
bool tx_lpi_enabled);
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c b/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c
index 3b082114f2e5..8fb551288298 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c
@@ -2,7 +2,7 @@
/*
* Broadcom GENET (Gigabit Ethernet) Wake-on-LAN support
*
- * Copyright (c) 2014-2024 Broadcom
+ * Copyright (c) 2014-2025 Broadcom
*/
#define pr_fmt(fmt) "bcmgenet_wol: " fmt
@@ -145,8 +145,7 @@ int bcmgenet_wol_power_down_cfg(struct bcmgenet_priv *priv,
enum bcmgenet_power_mode mode)
{
struct net_device *dev = priv->dev;
- struct bcmgenet_rxnfc_rule *rule;
- u32 reg, hfb_ctrl_reg, hfb_enable = 0;
+ u32 reg, hfb_ctrl_reg;
int retries = 0;
if (mode != GENET_POWER_WOL_MAGIC) {
@@ -154,18 +153,6 @@ int bcmgenet_wol_power_down_cfg(struct bcmgenet_priv *priv,
return -EINVAL;
}
- /* Can't suspend with WoL if MAC is still in reset */
- spin_lock_bh(&priv->reg_lock);
- reg = bcmgenet_umac_readl(priv, UMAC_CMD);
- if (reg & CMD_SW_RESET)
- reg &= ~CMD_SW_RESET;
-
- /* disable RX */
- reg &= ~CMD_RX_EN;
- bcmgenet_umac_writel(priv, reg, UMAC_CMD);
- spin_unlock_bh(&priv->reg_lock);
- mdelay(10);
-
if (priv->wolopts & (WAKE_MAGIC | WAKE_MAGICSECURE)) {
reg = bcmgenet_umac_readl(priv, UMAC_MPD_CTRL);
reg |= MPD_EN;
@@ -177,13 +164,8 @@ int bcmgenet_wol_power_down_cfg(struct bcmgenet_priv *priv,
}
hfb_ctrl_reg = bcmgenet_hfb_reg_readl(priv, HFB_CTRL);
- if (priv->wolopts & WAKE_FILTER) {
- list_for_each_entry(rule, &priv->rxnfc_list, list)
- if (rule->fs.ring_cookie == RX_CLS_FLOW_WAKE)
- hfb_enable |= (1 << rule->fs.location);
- reg = (hfb_ctrl_reg & ~RBUF_HFB_EN) | RBUF_ACPI_EN;
- bcmgenet_hfb_reg_writel(priv, reg, HFB_CTRL);
- }
+ reg = hfb_ctrl_reg | RBUF_ACPI_EN;
+ bcmgenet_hfb_reg_writel(priv, reg, HFB_CTRL);
/* Do not leave UniMAC in MPD mode only */
retries = bcmgenet_poll_wol_status(priv);
@@ -198,15 +180,12 @@ int bcmgenet_wol_power_down_cfg(struct bcmgenet_priv *priv,
netif_dbg(priv, wol, dev, "MPD WOL-ready status set after %d msec\n",
retries);
- clk_prepare_enable(priv->clk_wol);
- priv->wol_active = 1;
+ /* Disable phy status updates while suspending */
+ mutex_lock(&dev->phydev->lock);
+ dev->phydev->state = PHY_READY;
+ mutex_unlock(&dev->phydev->lock);
- if (hfb_enable) {
- bcmgenet_hfb_reg_writel(priv, hfb_enable,
- HFB_FLT_ENABLE_V3PLUS + 4);
- hfb_ctrl_reg = RBUF_HFB_EN | RBUF_ACPI_EN;
- bcmgenet_hfb_reg_writel(priv, hfb_ctrl_reg, HFB_CTRL);
- }
+ clk_prepare_enable(priv->clk_wol);
/* Enable CRC forward */
spin_lock_bh(&priv->reg_lock);
@@ -214,13 +193,17 @@ int bcmgenet_wol_power_down_cfg(struct bcmgenet_priv *priv,
priv->crc_fwd_en = 1;
reg |= CMD_CRC_FWD;
+ /* Can't suspend with WoL if MAC is still in reset */
+ if (reg & CMD_SW_RESET)
+ reg &= ~CMD_SW_RESET;
+
/* Receiver must be enabled for WOL MP detection */
reg |= CMD_RX_EN;
bcmgenet_umac_writel(priv, reg, UMAC_CMD);
spin_unlock_bh(&priv->reg_lock);
reg = UMAC_IRQ_MPD_R;
- if (hfb_enable)
+ if (hfb_ctrl_reg & RBUF_HFB_EN)
reg |= UMAC_IRQ_HFB_SM | UMAC_IRQ_HFB_MM;
bcmgenet_intrl2_0_writel(priv, reg, INTRL2_CPU_MASK_CLEAR);
@@ -228,40 +211,42 @@ int bcmgenet_wol_power_down_cfg(struct bcmgenet_priv *priv,
return 0;
}
-void bcmgenet_wol_power_up_cfg(struct bcmgenet_priv *priv,
- enum bcmgenet_power_mode mode)
+int bcmgenet_wol_power_up_cfg(struct bcmgenet_priv *priv,
+ enum bcmgenet_power_mode mode)
{
+ struct net_device *dev = priv->dev;
u32 reg;
if (mode != GENET_POWER_WOL_MAGIC) {
netif_err(priv, wol, priv->dev, "invalid mode: %d\n", mode);
- return;
+ return -EINVAL;
}
- if (!priv->wol_active)
- return; /* failed to suspend so skip the rest */
-
- priv->wol_active = 0;
clk_disable_unprepare(priv->clk_wol);
priv->crc_fwd_en = 0;
+ bcmgenet_intrl2_0_writel(priv, UMAC_IRQ_WAKE_EVENT,
+ INTRL2_CPU_MASK_SET);
+ if (bcmgenet_has_mdio_intr(priv))
+ bcmgenet_intrl2_0_writel(priv,
+ UMAC_IRQ_MDIO_EVENT,
+ INTRL2_CPU_MASK_CLEAR);
+
/* Disable Magic Packet Detection */
if (priv->wolopts & (WAKE_MAGIC | WAKE_MAGICSECURE)) {
reg = bcmgenet_umac_readl(priv, UMAC_MPD_CTRL);
if (!(reg & MPD_EN))
- return; /* already reset so skip the rest */
+ return -EPERM; /* already reset so skip the rest */
reg &= ~(MPD_EN | MPD_PW_EN);
bcmgenet_umac_writel(priv, reg, UMAC_MPD_CTRL);
}
- /* Disable WAKE_FILTER Detection */
- if (priv->wolopts & WAKE_FILTER) {
- reg = bcmgenet_hfb_reg_readl(priv, HFB_CTRL);
- if (!(reg & RBUF_ACPI_EN))
- return; /* already reset so skip the rest */
- reg &= ~(RBUF_HFB_EN | RBUF_ACPI_EN);
- bcmgenet_hfb_reg_writel(priv, reg, HFB_CTRL);
- }
+ /* Disable ACPI mode */
+ reg = bcmgenet_hfb_reg_readl(priv, HFB_CTRL);
+ if (!(reg & RBUF_ACPI_EN))
+ return -EPERM; /* already reset so skip the rest */
+ reg &= ~RBUF_ACPI_EN;
+ bcmgenet_hfb_reg_writel(priv, reg, HFB_CTRL);
/* Disable CRC Forward */
spin_lock_bh(&priv->reg_lock);
@@ -269,4 +254,14 @@ void bcmgenet_wol_power_up_cfg(struct bcmgenet_priv *priv,
reg &= ~CMD_CRC_FWD;
bcmgenet_umac_writel(priv, reg, UMAC_CMD);
spin_unlock_bh(&priv->reg_lock);
+
+ /* Resume link status tracking */
+ mutex_lock(&dev->phydev->lock);
+ if (dev->phydev->link)
+ dev->phydev->state = PHY_RUNNING;
+ else
+ dev->phydev->state = PHY_NOLINK;
+ mutex_unlock(&dev->phydev->lock);
+
+ return 0;
}
diff --git a/drivers/net/ethernet/broadcom/genet/bcmmii.c b/drivers/net/ethernet/broadcom/genet/bcmmii.c
index c4a3698cef66..71c619d2bea5 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmmii.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c
@@ -2,7 +2,7 @@
/*
* Broadcom GENET MDIO routines
*
- * Copyright (c) 2014-2024 Broadcom
+ * Copyright (c) 2014-2025 Broadcom
*/
#include <linux/acpi.h>
@@ -154,7 +154,7 @@ void bcmgenet_phy_power_set(struct net_device *dev, bool enable)
u32 reg = 0;
/* EXT_GPHY_CTRL is only valid for GENETv4 and onward */
- if (GENET_IS_V4(priv) || priv->ephy_16nm) {
+ if (GENET_IS_V4(priv) || bcmgenet_has_ephy_16nm(priv)) {
reg = bcmgenet_ext_readl(priv, EXT_GPHY_CTRL);
if (enable) {
reg &= ~EXT_CK25_DIS;
@@ -184,7 +184,7 @@ void bcmgenet_phy_power_set(struct net_device *dev, bool enable)
static void bcmgenet_moca_phy_setup(struct bcmgenet_priv *priv)
{
- if (priv->hw_params->flags & GENET_HAS_MOCA_LINK_DET)
+ if (bcmgenet_has_moca_link_det(priv))
fixed_phy_set_link_update(priv->dev->phydev,
bcmgenet_fixed_phy_link_update);
}