[PATCH net-next 19/19] net: ethernet: ti: cpsw: move ethtool func in separate file

Grygorii Strashko
2019-04-23T13:10:01Z

As a preparatory patch to add support for a switchdev based cpsw driver,
move common ethtool functions to separate cpsw-ethtool.c file so that they
can be used across both drivers. It will simplify CPSW driver code
maintenance also.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
---
drivers/net/ethernet/ti/Makefile | 2 +-
drivers/net/ethernet/ti/cpsw.c | 691 +-----------------------
drivers/net/ethernet/ti/cpsw_ethtool.c | 719 +++++++++++++++++++++++++
drivers/net/ethernet/ti/cpsw_priv.h | 83 +--
4 files changed, 769 insertions(+), 726 deletions(-)
create mode 100644 drivers/net/ethernet/ti/cpsw_ethtool.c

diff --git a/drivers/net/ethernet/ti/Makefile b/drivers/net/ethernet/ti/Makefile
index 0a75c1957626..c3f53a40b48f 100644
--- a/drivers/net/ethernet/ti/Makefile
+++ b/drivers/net/ethernet/ti/Makefile
@@ -14,7 +14,7 @@ obj-$(CONFIG_TI_DAVINCI_MDIO) += davinci_mdio.o
obj-$(CONFIG_TI_CPSW_PHY_SEL) += cpsw-phy-sel.o
obj-$(CONFIG_TI_CPTS_MOD) += cpts.o
obj-$(CONFIG_TI_CPSW) += ti_cpsw.o
-ti_cpsw-y := cpsw.o davinci_cpdma.o cpsw_ale.o cpsw_priv.o cpsw_sl.o
+ti_cpsw-y := cpsw.o davinci_cpdma.o cpsw_ale.o cpsw_priv.o cpsw_sl.o cpsw_ethtool.o

obj-$(CONFIG_TI_KEYSTONE_NETCP) += keystone_netcp.o
keystone_netcp-y := netcp_core.o cpsw_ale.o
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index ba1fb8578e8d..ca6475c920db 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -60,83 +60,6 @@ static int descs_pool_size = CPSW_CPDMA_DESCS_POOL_SIZE_DEFAULT;
module_param(descs_pool_size, int, 0444);
MODULE_PARM_DESC(descs_pool_size, "Number of CPDMA CPPI descriptors in pool");

-struct cpsw_stats {
- char stat_string[ETH_GSTRING_LEN];
- int type;
- int sizeof_stat;
- int stat_offset;
-};
-
-enum {
- CPSW_STATS,
- CPDMA_RX_STATS,
- CPDMA_TX_STATS,
-};
-
-#define CPSW_STAT(m) CPSW_STATS, \
- FIELD_SIZEOF(struct cpsw_hw_stats, m), \
- offsetof(struct cpsw_hw_stats, m)
-#define CPDMA_RX_STAT(m) CPDMA_RX_STATS, \
- FIELD_SIZEOF(struct cpdma_chan_stats, m), \
- offsetof(struct cpdma_chan_stats, m)
-#define CPDMA_TX_STAT(m) CPDMA_TX_STATS, \
- FIELD_SIZEOF(struct cpdma_chan_stats, m), \
- offsetof(struct cpdma_chan_stats, m)
-
-static const struct cpsw_stats cpsw_gstrings_stats[] = {
- { "Good Rx Frames", CPSW_STAT(rxgoodframes) },
- { "Broadcast Rx Frames", CPSW_STAT(rxbroadcastframes) },
- { "Multicast Rx Frames", CPSW_STAT(rxmulticastframes) },
- { "Pause Rx Frames", CPSW_STAT(rxpauseframes) },
- { "Rx CRC Errors", CPSW_STAT(rxcrcerrors) },
- { "Rx Align/Code Errors", CPSW_STAT(rxaligncodeerrors) },
- { "Oversize Rx Frames", CPSW_STAT(rxoversizedframes) },
- { "Rx Jabbers", CPSW_STAT(rxjabberframes) },
- { "Undersize (Short) Rx Frames", CPSW_STAT(rxundersizedframes) },
- { "Rx Fragments", CPSW_STAT(rxfragments) },
- { "Rx Octets", CPSW_STAT(rxoctets) },
- { "Good Tx Frames", CPSW_STAT(txgoodframes) },
- { "Broadcast Tx Frames", CPSW_STAT(txbroadcastframes) },
- { "Multicast Tx Frames", CPSW_STAT(txmulticastframes) },
- { "Pause Tx Frames", CPSW_STAT(txpauseframes) },
- { "Deferred Tx Frames", CPSW_STAT(txdeferredframes) },
- { "Collisions", CPSW_STAT(txcollisionframes) },
- { "Single Collision Tx Frames", CPSW_STAT(txsinglecollframes) },
- { "Multiple Collision Tx Frames", CPSW_STAT(txmultcollframes) },
- { "Excessive Collisions", CPSW_STAT(txexcessivecollisions) },
- { "Late Collisions", CPSW_STAT(txlatecollisions) },
- { "Tx Underrun", CPSW_STAT(txunderrun) },
- { "Carrier Sense Errors", CPSW_STAT(txcarriersenseerrors) },
- { "Tx Octets", CPSW_STAT(txoctets) },
- { "Rx + Tx 64 Octet Frames", CPSW_STAT(octetframes64) },
- { "Rx + Tx 65-127 Octet Frames", CPSW_STAT(octetframes65t127) },
- { "Rx + Tx 128-255 Octet Frames", CPSW_STAT(octetframes128t255) },
- { "Rx + Tx 256-511 Octet Frames", CPSW_STAT(octetframes256t511) },
- { "Rx + Tx 512-1023 Octet Frames", CPSW_STAT(octetframes512t1023) },
- { "Rx + Tx 1024-Up Octet Frames", CPSW_STAT(octetframes1024tup) },
- { "Net Octets", CPSW_STAT(netoctets) },
- { "Rx Start of Frame Overruns", CPSW_STAT(rxsofoverruns) },
- { "Rx Middle of Frame Overruns", CPSW_STAT(rxmofoverruns) },
- { "Rx DMA Overruns", CPSW_STAT(rxdmaoverruns) },
-};
-
-static const struct cpsw_stats cpsw_gstrings_ch_stats[] = {
- { "head_enqueue", CPDMA_RX_STAT(head_enqueue) },
- { "tail_enqueue", CPDMA_RX_STAT(tail_enqueue) },
- { "pad_enqueue", CPDMA_RX_STAT(pad_enqueue) },
- { "misqueued", CPDMA_RX_STAT(misqueued) },
- { "desc_alloc_fail", CPDMA_RX_STAT(desc_alloc_fail) },
- { "pad_alloc_fail", CPDMA_RX_STAT(pad_alloc_fail) },
- { "runt_receive_buf", CPDMA_RX_STAT(runt_receive_buff) },
- { "runt_transmit_buf", CPDMA_RX_STAT(runt_transmit_buff) },
- { "empty_dequeue", CPDMA_RX_STAT(empty_dequeue) },
- { "busy_dequeue", CPDMA_RX_STAT(busy_dequeue) },
- { "good_dequeue", CPDMA_RX_STAT(good_dequeue) },
- { "requeue", CPDMA_RX_STAT(requeue) },
- { "teardown_dequeue", CPDMA_RX_STAT(teardown_dequeue) },
-};
-
-
static int cpsw_ndo_vlan_rx_add_vid(struct net_device *ndev,
__be16 proto, u16 vid);

@@ -382,7 +305,7 @@ static void cpsw_ndo_set_rx_mode(struct net_device *ndev)
cpsw_del_mc_addr);
}

-static void cpsw_intr_enable(struct cpsw_common *cpsw)
+void cpsw_intr_enable(struct cpsw_common *cpsw)
{
writel_relaxed(0xFF, &cpsw->wr_regs->tx_en);
writel_relaxed(0xFF, &cpsw->wr_regs->rx_en);
@@ -391,7 +314,7 @@ static void cpsw_intr_enable(struct cpsw_common *cpsw)
return;
}

-static void cpsw_intr_disable(struct cpsw_common *cpsw)
+void cpsw_intr_disable(struct cpsw_common *cpsw)
{
writel_relaxed(0, &cpsw->wr_regs->tx_en);
writel_relaxed(0, &cpsw->wr_regs->rx_en);
@@ -400,7 +323,7 @@ static void cpsw_intr_disable(struct cpsw_common *cpsw)
return;
}

-static void cpsw_tx_handler(void *token, int len, int status)
+void cpsw_tx_handler(void *token, int len, int status)
{
struct netdev_queue *txq;
struct sk_buff *skb = token;
@@ -532,7 +455,7 @@ static void cpsw_rx_handler(void *token, int len, int status)
dev_kfree_skb_any(new_skb);
}

-static void cpsw_split_res(struct cpsw_common *cpsw)
+void cpsw_split_res(struct cpsw_common *cpsw)
{
u32 consumed_rate = 0, bigest_rate = 0;
struct cpsw_vector *txv = cpsw->txv;
@@ -924,156 +847,6 @@ static void cpsw_adjust_link(struct net_device *ndev)
}
}

-static int cpsw_get_coalesce(struct net_device *ndev,
- struct ethtool_coalesce *coal)
-{
- struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
-
- coal->rx_coalesce_usecs = cpsw->coal_intvl;
- return 0;
-}
-
-static int cpsw_set_coalesce(struct net_device *ndev,
- struct ethtool_coalesce *coal)
-{
- struct cpsw_priv *priv = netdev_priv(ndev);
- u32 int_ctrl;
- u32 num_interrupts = 0;
- u32 prescale = 0;
- u32 addnl_dvdr = 1;
- u32 coal_intvl = 0;
- struct cpsw_common *cpsw = priv->cpsw;
-
- coal_intvl = coal->rx_coalesce_usecs;
-
- int_ctrl = readl(&cpsw->wr_regs->int_control);
- prescale = cpsw->bus_freq_mhz * 4;
-
- if (!coal->rx_coalesce_usecs) {
- int_ctrl &= ~(CPSW_INTPRESCALE_MASK | CPSW_INTPACEEN);
- goto update_return;
- }
-
- if (coal_intvl < CPSW_CMINTMIN_INTVL)
- coal_intvl = CPSW_CMINTMIN_INTVL;
-
- if (coal_intvl > CPSW_CMINTMAX_INTVL) {
- /* Interrupt pacer works with 4us Pulse, we can
- * throttle further by dilating the 4us pulse.
- */
- addnl_dvdr = CPSW_INTPRESCALE_MASK / prescale;
-
- if (addnl_dvdr > 1) {
- prescale *= addnl_dvdr;
- if (coal_intvl > (CPSW_CMINTMAX_INTVL * addnl_dvdr))
- coal_intvl = (CPSW_CMINTMAX_INTVL
- * addnl_dvdr);
- } else {
- addnl_dvdr = 1;
- coal_intvl = CPSW_CMINTMAX_INTVL;
- }
- }
-
- num_interrupts = (1000 * addnl_dvdr) / coal_intvl;
- writel(num_interrupts, &cpsw->wr_regs->rx_imax);
- writel(num_interrupts, &cpsw->wr_regs->tx_imax);
-
- int_ctrl |= CPSW_INTPACEEN;
- int_ctrl &= (~CPSW_INTPRESCALE_MASK);
- int_ctrl |= (prescale & CPSW_INTPRESCALE_MASK);
-
-update_return:
- writel(int_ctrl, &cpsw->wr_regs->int_control);
-
- cpsw_notice(priv, timer, "Set coalesce to %d usecs.\n", coal_intvl);
- cpsw->coal_intvl = coal_intvl;
-
- return 0;
-}
-
-static int cpsw_get_sset_count(struct net_device *ndev, int sset)
-{
- struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
-
- switch (sset) {
- case ETH_SS_STATS:
- return (CPSW_STATS_COMMON_LEN +
- (cpsw->rx_ch_num + cpsw->tx_ch_num) *
- CPSW_STATS_CH_LEN);
- default:
- return -EOPNOTSUPP;
- }
-}
-
-static void cpsw_add_ch_strings(u8 **p, int ch_num, int rx_dir)
-{
- int ch_stats_len;
- int line;
- int i;
-
- ch_stats_len = CPSW_STATS_CH_LEN * ch_num;
- for (i = 0; i < ch_stats_len; i++) {
- line = i % CPSW_STATS_CH_LEN;
- snprintf(*p, ETH_GSTRING_LEN,
- "%s DMA chan %ld: %s", rx_dir ? "Rx" : "Tx",
- (long)(i / CPSW_STATS_CH_LEN),
- cpsw_gstrings_ch_stats[line].stat_string);
- *p += ETH_GSTRING_LEN;
- }
-}
-
-static void cpsw_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
-{
- struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
- u8 *p = data;
- int i;
-
- switch (stringset) {
- case ETH_SS_STATS:
- for (i = 0; i < CPSW_STATS_COMMON_LEN; i++) {
- memcpy(p, cpsw_gstrings_stats[i].stat_string,
- ETH_GSTRING_LEN);
- p += ETH_GSTRING_LEN;
- }
-
- cpsw_add_ch_strings(&p, cpsw->rx_ch_num, 1);
- cpsw_add_ch_strings(&p, cpsw->tx_ch_num, 0);
- break;
- }
-}
-
-static void cpsw_get_ethtool_stats(struct net_device *ndev,
- struct ethtool_stats *stats, u64 *data)
-{
- u8 *p;
- struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
- struct cpdma_chan_stats ch_stats;
- int i, l, ch;
-
- /* Collect Davinci CPDMA stats for Rx and Tx Channel */
- for (l = 0; l < CPSW_STATS_COMMON_LEN; l++)
- data[l] = readl(cpsw->hw_stats +
- cpsw_gstrings_stats[l].stat_offset);
-
- for (ch = 0; ch < cpsw->rx_ch_num; ch++) {
- cpdma_chan_get_stats(cpsw->rxv[ch].ch, &ch_stats);
- for (i = 0; i < CPSW_STATS_CH_LEN; i++, l++) {
- p = (u8 *)&ch_stats +
- cpsw_gstrings_ch_stats[i].stat_offset;
- data[l] = *(u32 *)p;
- }
- }
-
- for (ch = 0; ch < cpsw->tx_ch_num; ch++) {
- cpdma_chan_get_stats(cpsw->txv[ch].ch, &ch_stats);
- for (i = 0; i < CPSW_STATS_CH_LEN; i++, l++) {
- p = (u8 *)&ch_stats +
- cpsw_gstrings_ch_stats[i].stat_offset;
- data[l] = *(u32 *)p;
- }
- }
-}
-
static inline void cpsw_add_dual_emac_def_ale_entries(
struct cpsw_priv *priv, struct cpsw_slave *slave,
u32 slave_port)
@@ -1245,7 +1018,7 @@ static void cpsw_init_host_port(struct cpsw_priv *priv)
}
}

-static int cpsw_fill_rx_channels(struct cpsw_priv *priv)
+int cpsw_fill_rx_channels(struct cpsw_priv *priv)
{
struct cpsw_common *cpsw = priv->cpsw;
struct sk_buff *skb;
@@ -1970,18 +1743,6 @@ static int cpsw_ndo_set_mac_address(struct net_device *ndev, void *p)
return 0;
}

-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void cpsw_ndo_poll_controller(struct net_device *ndev)
-{
- struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
-
- cpsw_intr_disable(cpsw);
- cpsw_rx_interrupt(cpsw->irqs_table[0], cpsw);
- cpsw_tx_interrupt(cpsw->irqs_table[1], cpsw);
- cpsw_intr_enable(cpsw);
-}
-#endif
-
static inline int cpsw_add_vlan_ale_entry(struct cpsw_priv *priv,
unsigned short vid)
{
@@ -2247,25 +2008,6 @@ static const struct net_device_ops cpsw_netdev_ops = {
.ndo_setup_tc = cpsw_ndo_setup_tc,
};

-static int cpsw_get_regs_len(struct net_device *ndev)
-{
- struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
-
- return cpsw->data.ale_entries * ALE_ENTRY_WORDS * sizeof(u32);
-}
-
-static void cpsw_get_regs(struct net_device *ndev,
- struct ethtool_regs *regs, void *p)
-{
- u32 *reg = p;
- struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
-
- /* update CPSW IP version */
- regs->version = cpsw->version;
-
- cpsw_ale_dump(cpsw->ale, reg);
-}
-
static void cpsw_get_drvinfo(struct net_device *ndev,
struct ethtool_drvinfo *info)
{
@@ -2277,119 +2019,6 @@ static void cpsw_get_drvinfo(struct net_device *ndev,
strlcpy(info->bus_info, pdev->name, sizeof(info->bus_info));
}

-static u32 cpsw_get_msglevel(struct net_device *ndev)
-{
- struct cpsw_priv *priv = netdev_priv(ndev);
- return priv->msg_enable;
-}
-
-static void cpsw_set_msglevel(struct net_device *ndev, u32 value)
-{
- struct cpsw_priv *priv = netdev_priv(ndev);
- priv->msg_enable = value;
-}
-
-#if IS_ENABLED(CONFIG_TI_CPTS)
-static int cpsw_get_ts_info(struct net_device *ndev,
- struct ethtool_ts_info *info)
-{
- struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
-
- info->so_timestamping =
- SOF_TIMESTAMPING_TX_HARDWARE |
- SOF_TIMESTAMPING_TX_SOFTWARE |
- SOF_TIMESTAMPING_RX_HARDWARE |
- SOF_TIMESTAMPING_RX_SOFTWARE |
- SOF_TIMESTAMPING_SOFTWARE |
- SOF_TIMESTAMPING_RAW_HARDWARE;
- info->phc_index = cpsw->cpts->phc_index;
- info->tx_types =
- (1 << HWTSTAMP_TX_OFF) |
- (1 << HWTSTAMP_TX_ON);
- info->rx_filters =
- (1 << HWTSTAMP_FILTER_NONE) |
- (1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
- (1 << HWTSTAMP_FILTER_PTP_V2_EVENT);
- return 0;
-}
-#else
-static int cpsw_get_ts_info(struct net_device *ndev,
- struct ethtool_ts_info *info)
-{
- info->so_timestamping =
- SOF_TIMESTAMPING_TX_SOFTWARE |
- SOF_TIMESTAMPING_RX_SOFTWARE |
- SOF_TIMESTAMPING_SOFTWARE;
- info->phc_index = -1;
- info->tx_types = 0;
- info->rx_filters = 0;
- return 0;
-}
-#endif
-
-static int cpsw_get_link_ksettings(struct net_device *ndev,
- struct ethtool_link_ksettings *ecmd)
-{
- struct cpsw_priv *priv = netdev_priv(ndev);
- struct cpsw_common *cpsw = priv->cpsw;
- int slave_no = cpsw_slave_index(cpsw, priv);
-
- if (!cpsw->slaves[slave_no].phy)
- return -EOPNOTSUPP;
-
- phy_ethtool_ksettings_get(cpsw->slaves[slave_no].phy, ecmd);
- return 0;
-}
-
-static int cpsw_set_link_ksettings(struct net_device *ndev,
- const struct ethtool_link_ksettings *ecmd)
-{
- struct cpsw_priv *priv = netdev_priv(ndev);
- struct cpsw_common *cpsw = priv->cpsw;
- int slave_no = cpsw_slave_index(cpsw, priv);
-
- if (cpsw->slaves[slave_no].phy)
- return phy_ethtool_ksettings_set(cpsw->slaves[slave_no].phy,
- ecmd);
- else
- return -EOPNOTSUPP;
-}
-
-static void cpsw_get_wol(struct net_device *ndev, struct ethtool_wolinfo *wol)
-{
- struct cpsw_priv *priv = netdev_priv(ndev);
- struct cpsw_common *cpsw = priv->cpsw;
- int slave_no = cpsw_slave_index(cpsw, priv);
-
- wol->supported = 0;
- wol->wolopts = 0;
-
- if (cpsw->slaves[slave_no].phy)
- phy_ethtool_get_wol(cpsw->slaves[slave_no].phy, wol);
-}
-
-static int cpsw_set_wol(struct net_device *ndev, struct ethtool_wolinfo *wol)
-{
- struct cpsw_priv *priv = netdev_priv(ndev);
- struct cpsw_common *cpsw = priv->cpsw;
- int slave_no = cpsw_slave_index(cpsw, priv);
-
- if (cpsw->slaves[slave_no].phy)
- return phy_ethtool_set_wol(cpsw->slaves[slave_no].phy, wol);
- else
- return -EOPNOTSUPP;
-}
-
-static void cpsw_get_pauseparam(struct net_device *ndev,
- struct ethtool_pauseparam *pause)
-{
- struct cpsw_priv *priv = netdev_priv(ndev);
-
- pause->autoneg = AUTONEG_DISABLE;
- pause->rx_pause = priv->rx_pause ? true : false;
- pause->tx_pause = priv->tx_pause ? true : false;
-}
-
static int cpsw_set_pauseparam(struct net_device *ndev,
struct ethtool_pauseparam *pause)
{
@@ -2403,316 +2032,10 @@ static int cpsw_set_pauseparam(struct net_device *ndev,
return 0;
}

-static int cpsw_ethtool_op_begin(struct net_device *ndev)
-{
- struct cpsw_priv *priv = netdev_priv(ndev);
- struct cpsw_common *cpsw = priv->cpsw;
- int ret;
-
- ret = pm_runtime_get_sync(cpsw->dev);
- if (ret < 0) {
- cpsw_err(priv, drv, "ethtool begin failed %d\n", ret);
- pm_runtime_put_noidle(cpsw->dev);
- }
-
- return ret;
-}
-
-static void cpsw_ethtool_op_complete(struct net_device *ndev)
-{
- struct cpsw_priv *priv = netdev_priv(ndev);
- int ret;
-
- ret = pm_runtime_put(priv->cpsw->dev);
- if (ret < 0)
- cpsw_err(priv, drv, "ethtool complete failed %d\n", ret);
-}
-
-static void cpsw_get_channels(struct net_device *ndev,
- struct ethtool_channels *ch)
-{
- struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
-
- ch->max_rx = cpsw->quirk_irq ? 1 : CPSW_MAX_QUEUES;
- ch->max_tx = cpsw->quirk_irq ? 1 : CPSW_MAX_QUEUES;
- ch->max_combined = 0;
- ch->max_other = 0;
- ch->other_count = 0;
- ch->rx_count = cpsw->rx_ch_num;
- ch->tx_count = cpsw->tx_ch_num;
- ch->combined_count = 0;
-}
-
-static int cpsw_check_ch_settings(struct cpsw_common *cpsw,
- struct ethtool_channels *ch)
-{
- if (cpsw->quirk_irq) {
- dev_err(cpsw->dev, "Maximum one tx/rx queue is allowed");
- return -EOPNOTSUPP;
- }
-
- if (ch->combined_count)
- return -EINVAL;
-
- /* verify we have at least one channel in each direction */
- if (!ch->rx_count || !ch->tx_count)
- return -EINVAL;
-
- if (ch->rx_count > cpsw->data.channels ||
- ch->tx_count > cpsw->data.channels)
- return -EINVAL;
-
- return 0;
-}
-
-static int cpsw_update_channels_res(struct cpsw_priv *priv, int ch_num, int rx)
-{
- struct cpsw_common *cpsw = priv->cpsw;
- void (*handler)(void *, int, int);
- struct netdev_queue *queue;
- struct cpsw_vector *vec;
- int ret, *ch, vch;
-
- if (rx) {
- ch = &cpsw->rx_ch_num;
- vec = cpsw->rxv;
- handler = cpsw_rx_handler;
- } else {
- ch = &cpsw->tx_ch_num;
- vec = cpsw->txv;
- handler = cpsw_tx_handler;
- }
-
- while (*ch < ch_num) {
- vch = rx ? *ch : 7 - *ch;
- vec[*ch].ch = cpdma_chan_create(cpsw->dma, vch, handler, rx);
- queue = netdev_get_tx_queue(priv->ndev, *ch);
- queue->tx_maxrate = 0;
-
- if (IS_ERR(vec[*ch].ch))
- return PTR_ERR(vec[*ch].ch);
-
- if (!vec[*ch].ch)
- return -EINVAL;
-
- cpsw_info(priv, ifup, "created new %d %s channel\n", *ch,
- (rx ? "rx" : "tx"));
- (*ch)++;
- }
-
- while (*ch > ch_num) {
- (*ch)--;
-
- ret = cpdma_chan_destroy(vec[*ch].ch);
- if (ret)
- return ret;
-
- cpsw_info(priv, ifup, "destroyed %d %s channel\n", *ch,
- (rx ? "rx" : "tx"));
- }
-
- return 0;
-}
-
-static int cpsw_update_channels(struct cpsw_priv *priv,
- struct ethtool_channels *ch)
-{
- int ret;
-
- ret = cpsw_update_channels_res(priv, ch->rx_count, 1);
- if (ret)
- return ret;
-
- ret = cpsw_update_channels_res(priv, ch->tx_count, 0);
- if (ret)
- return ret;
-
- return 0;
-}
-
-static void cpsw_suspend_data_pass(struct net_device *ndev)
-{
- struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
- struct cpsw_slave *slave;
- int i;
-
- /* Disable NAPI scheduling */
- cpsw_intr_disable(cpsw);
-
- /* Stop all transmit queues for every network device.
- * Disable re-using rx descriptors with dormant_on.
- */
- for (i = cpsw->data.slaves, slave = cpsw->slaves; i; i--, slave++) {
- if (!(slave->ndev && netif_running(slave->ndev)))
- continue;
-
- netif_tx_stop_all_queues(slave->ndev);
- netif_dormant_on(slave->ndev);
- }
-
- /* Handle rest of tx packets and stop cpdma channels */
- cpdma_ctlr_stop(cpsw->dma);
-}
-
-static int cpsw_resume_data_pass(struct net_device *ndev)
-{
- struct cpsw_priv *priv = netdev_priv(ndev);
- struct cpsw_common *cpsw = priv->cpsw;
- struct cpsw_slave *slave;
- int i, ret;
-
- /* Allow rx packets handling */
- for (i = cpsw->data.slaves, slave = cpsw->slaves; i; i--, slave++)
- if (slave->ndev && netif_running(slave->ndev))
- netif_dormant_off(slave->ndev);
-
- /* After this receive is started */
- if (cpsw->usage_count) {
- ret = cpsw_fill_rx_channels(priv);
- if (ret)
- return ret;
-
- cpdma_ctlr_start(cpsw->dma);
- cpsw_intr_enable(cpsw);
- }
-
- /* Resume transmit for every affected interface */
- for (i = cpsw->data.slaves, slave = cpsw->slaves; i; i--, slave++)
- if (slave->ndev && netif_running(slave->ndev))
- netif_tx_start_all_queues(slave->ndev);
-
- return 0;
-}
-
static int cpsw_set_channels(struct net_device *ndev,
struct ethtool_channels *chs)
{
- struct cpsw_priv *priv = netdev_priv(ndev);
- struct cpsw_common *cpsw = priv->cpsw;
- struct cpsw_slave *slave;
- int i, ret;
-
- ret = cpsw_check_ch_settings(cpsw, chs);
- if (ret < 0)
- return ret;
-
- cpsw_suspend_data_pass(ndev);
- ret = cpsw_update_channels(priv, chs);
- if (ret)
- goto err;
-
- for (i = cpsw->data.slaves, slave = cpsw->slaves; i; i--, slave++) {
- if (!(slave->ndev && netif_running(slave->ndev)))
- continue;
-
- /* Inform stack about new count of queues */
- ret = netif_set_real_num_tx_queues(slave->ndev,
- cpsw->tx_ch_num);
- if (ret) {
- dev_err(priv->dev, "cannot set real number of tx queues\n");
- goto err;
- }
-
- ret = netif_set_real_num_rx_queues(slave->ndev,
- cpsw->rx_ch_num);
- if (ret) {
- dev_err(priv->dev, "cannot set real number of rx queues\n");
- goto err;
- }
- }
-
- if (cpsw->usage_count)
- cpsw_split_res(cpsw);
-
- ret = cpsw_resume_data_pass(ndev);
- if (!ret)
- return 0;
-err:
- dev_err(priv->dev, "cannot update channels number, closing device\n");
- dev_close(ndev);
- return ret;
-}
-
-static int cpsw_get_eee(struct net_device *ndev, struct ethtool_eee *edata)
-{
- struct cpsw_priv *priv = netdev_priv(ndev);
- struct cpsw_common *cpsw = priv->cpsw;
- int slave_no = cpsw_slave_index(cpsw, priv);
-
- if (cpsw->slaves[slave_no].phy)
- return phy_ethtool_get_eee(cpsw->slaves[slave_no].phy, edata);
- else
- return -EOPNOTSUPP;
-}
-
-static int cpsw_set_eee(struct net_device *ndev, struct ethtool_eee *edata)
-{
- struct cpsw_priv *priv = netdev_priv(ndev);
- struct cpsw_common *cpsw = priv->cpsw;
- int slave_no = cpsw_slave_index(cpsw, priv);
-
- if (cpsw->slaves[slave_no].phy)
- return phy_ethtool_set_eee(cpsw->slaves[slave_no].phy, edata);
- else
- return -EOPNOTSUPP;
-}
-
-static int cpsw_nway_reset(struct net_device *ndev)
-{
- struct cpsw_priv *priv = netdev_priv(ndev);
- struct cpsw_common *cpsw = priv->cpsw;
- int slave_no = cpsw_slave_index(cpsw, priv);
-
- if (cpsw->slaves[slave_no].phy)
- return genphy_restart_aneg(cpsw->slaves[slave_no].phy);
- else
- return -EOPNOTSUPP;
-}
-
-static void cpsw_get_ringparam(struct net_device *ndev,
- struct ethtool_ringparam *ering)
-{
- struct cpsw_priv *priv = netdev_priv(ndev);
- struct cpsw_common *cpsw = priv->cpsw;
-
- /* not supported */
- ering->tx_max_pending = 0;
- ering->tx_pending = cpdma_get_num_tx_descs(cpsw->dma);
- ering->rx_max_pending = descs_pool_size - CPSW_MAX_QUEUES;
- ering->rx_pending = cpdma_get_num_rx_descs(cpsw->dma);
-}
-
-static int cpsw_set_ringparam(struct net_device *ndev,
- struct ethtool_ringparam *ering)
-{
- struct cpsw_priv *priv = netdev_priv(ndev);
- struct cpsw_common *cpsw = priv->cpsw;
- int ret;
-
- /* ignore ering->tx_pending - only rx_pending adjustment is supported */
-
- if (ering->rx_mini_pending || ering->rx_jumbo_pending ||
- ering->rx_pending < CPSW_MAX_QUEUES ||
- ering->rx_pending > (descs_pool_size - CPSW_MAX_QUEUES))
- return -EINVAL;
-
- if (ering->rx_pending == cpdma_get_num_rx_descs(cpsw->dma))
- return 0;
-
- cpsw_suspend_data_pass(ndev);
-
- cpdma_set_num_rx_descs(cpsw->dma, ering->rx_pending);
-
- if (cpsw->usage_count)
- cpdma_chan_split_pool(cpsw->dma);
-
- ret = cpsw_resume_data_pass(ndev);
- if (!ret)
- return 0;
-
- dev_err(&ndev->dev, "cannot set ring params, closing device\n");
- dev_close(ndev);
- return ret;
+ return cpsw_set_channels_common(ndev, chs, cpsw_rx_handler);
}

static const struct ethtool_ops cpsw_ethtool_ops = {
@@ -3093,7 +2416,7 @@ static int cpsw_probe(struct platform_device *pdev)
}

cpsw->rx_packet_max = max(rx_packet_max, CPSW_MAX_PACKET_SIZE);
-
+ cpsw->descs_pool_size = descs_pool_size;

ret = cpsw_init_common(cpsw, ss_regs, ale_ageout,
(u32 __force)ss_res->start + CPSW2_BD_OFFSET,
diff --git a/drivers/net/ethernet/ti/cpsw_ethtool.c b/drivers/net/ethernet/ti/cpsw_ethtool.c
new file mode 100644
index 000000000000..a4a7ec0d2531
--- /dev/null
+++ b/drivers/net/ethernet/ti/cpsw_ethtool.c
@@ -0,0 +1,719 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Texas Instruments Ethernet Switch Driver ethtool intf
+ *
+ * Copyright (C) 2019 Texas Instruments
+ */
+
+#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
+#include <linux/kmemleak.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/net_tstamp.h>
+#include <linux/phy.h>
+#include <linux/pm_runtime.h>
+#include <linux/skbuff.h>
+
+#include "cpsw.h"
+#include "cpts.h"
+#include "cpsw_ale.h"
+#include "cpsw_priv.h"
+#include "davinci_cpdma.h"
+
+struct cpsw_hw_stats {
+ u32 rxgoodframes;
+ u32 rxbroadcastframes;
+ u32 rxmulticastframes;
+ u32 rxpauseframes;
+ u32 rxcrcerrors;
+ u32 rxaligncodeerrors;
+ u32 rxoversizedframes;
+ u32 rxjabberframes;
+ u32 rxundersizedframes;
+ u32 rxfragments;
+ u32 __pad_0[2];
+ u32 rxoctets;
+ u32 txgoodframes;
+ u32 txbroadcastframes;
+ u32 txmulticastframes;
+ u32 txpauseframes;
+ u32 txdeferredframes;
+ u32 txcollisionframes;
+ u32 txsinglecollframes;
+ u32 txmultcollframes;
+ u32 txexcessivecollisions;
+ u32 txlatecollisions;
+ u32 txunderrun;
+ u32 txcarriersenseerrors;
+ u32 txoctets;
+ u32 octetframes64;
+ u32 octetframes65t127;
+ u32 octetframes128t255;
+ u32 octetframes256t511;
+ u32 octetframes512t1023;
+ u32 octetframes1024tup;
+ u32 netoctets;
+ u32 rxsofoverruns;
+ u32 rxmofoverruns;
+ u32 rxdmaoverruns;
+};
+
+struct cpsw_stats {
+ char stat_string[ETH_GSTRING_LEN];
+ int type;
+ int sizeof_stat;
+ int stat_offset;
+};
+
+enum {
+ CPSW_STATS,
+ CPDMA_RX_STATS,
+ CPDMA_TX_STATS,
+};
+
+#define CPSW_STAT(m) CPSW_STATS, \
+ FIELD_SIZEOF(struct cpsw_hw_stats, m), \
+ offsetof(struct cpsw_hw_stats, m)
+#define CPDMA_RX_STAT(m) CPDMA_RX_STATS, \
+ FIELD_SIZEOF(struct cpdma_chan_stats, m), \
+ offsetof(struct cpdma_chan_stats, m)
+#define CPDMA_TX_STAT(m) CPDMA_TX_STATS, \
+ FIELD_SIZEOF(struct cpdma_chan_stats, m), \
+ offsetof(struct cpdma_chan_stats, m)
+
+static const struct cpsw_stats cpsw_gstrings_stats[] = {
+ { "Good Rx Frames", CPSW_STAT(rxgoodframes) },
+ { "Broadcast Rx Frames", CPSW_STAT(rxbroadcastframes) },
+ { "Multicast Rx Frames", CPSW_STAT(rxmulticastframes) },
+ { "Pause Rx Frames", CPSW_STAT(rxpauseframes) },
+ { "Rx CRC Errors", CPSW_STAT(rxcrcerrors) },
+ { "Rx Align/Code Errors", CPSW_STAT(rxaligncodeerrors) },
+ { "Oversize Rx Frames", CPSW_STAT(rxoversizedframes) },
+ { "Rx Jabbers", CPSW_STAT(rxjabberframes) },
+ { "Undersize (Short) Rx Frames", CPSW_STAT(rxundersizedframes) },
+ { "Rx Fragments", CPSW_STAT(rxfragments) },
+ { "Rx Octets", CPSW_STAT(rxoctets) },
+ { "Good Tx Frames", CPSW_STAT(txgoodframes) },
+ { "Broadcast Tx Frames", CPSW_STAT(txbroadcastframes) },
+ { "Multicast Tx Frames", CPSW_STAT(txmulticastframes) },
+ { "Pause Tx Frames", CPSW_STAT(txpauseframes) },
+ { "Deferred Tx Frames", CPSW_STAT(txdeferredframes) },
+ { "Collisions", CPSW_STAT(txcollisionframes) },
+ { "Single Collision Tx Frames", CPSW_STAT(txsinglecollframes) },
+ { "Multiple Collision Tx Frames", CPSW_STAT(txmultcollframes) },
+ { "Excessive Collisions", CPSW_STAT(txexcessivecollisions) },
+ { "Late Collisions", CPSW_STAT(txlatecollisions) },
+ { "Tx Underrun", CPSW_STAT(txunderrun) },
+ { "Carrier Sense Errors", CPSW_STAT(txcarriersenseerrors) },
+ { "Tx Octets", CPSW_STAT(txoctets) },
+ { "Rx + Tx 64 Octet Frames", CPSW_STAT(octetframes64) },
+ { "Rx + Tx 65-127 Octet Frames", CPSW_STAT(octetframes65t127) },
+ { "Rx + Tx 128-255 Octet Frames", CPSW_STAT(octetframes128t255) },
+ { "Rx + Tx 256-511 Octet Frames", CPSW_STAT(octetframes256t511) },
+ { "Rx + Tx 512-1023 Octet Frames", CPSW_STAT(octetframes512t1023) },
+ { "Rx + Tx 1024-Up Octet Frames", CPSW_STAT(octetframes1024tup) },
+ { "Net Octets", CPSW_STAT(netoctets) },
+ { "Rx Start of Frame Overruns", CPSW_STAT(rxsofoverruns) },
+ { "Rx Middle of Frame Overruns", CPSW_STAT(rxmofoverruns) },
+ { "Rx DMA Overruns", CPSW_STAT(rxdmaoverruns) },
+};
+
+static const struct cpsw_stats cpsw_gstrings_ch_stats[] = {
+ { "head_enqueue", CPDMA_RX_STAT(head_enqueue) },
+ { "tail_enqueue", CPDMA_RX_STAT(tail_enqueue) },
+ { "pad_enqueue", CPDMA_RX_STAT(pad_enqueue) },
+ { "misqueued", CPDMA_RX_STAT(misqueued) },
+ { "desc_alloc_fail", CPDMA_RX_STAT(desc_alloc_fail) },
+ { "pad_alloc_fail", CPDMA_RX_STAT(pad_alloc_fail) },
+ { "runt_receive_buf", CPDMA_RX_STAT(runt_receive_buff) },
+ { "runt_transmit_buf", CPDMA_RX_STAT(runt_transmit_buff) },
+ { "empty_dequeue", CPDMA_RX_STAT(empty_dequeue) },
+ { "busy_dequeue", CPDMA_RX_STAT(busy_dequeue) },
+ { "good_dequeue", CPDMA_RX_STAT(good_dequeue) },
+ { "requeue", CPDMA_RX_STAT(requeue) },
+ { "teardown_dequeue", CPDMA_RX_STAT(teardown_dequeue) },
+};
+
+#define CPSW_STATS_COMMON_LEN ARRAY_SIZE(cpsw_gstrings_stats)
+#define CPSW_STATS_CH_LEN ARRAY_SIZE(cpsw_gstrings_ch_stats)
+
+u32 cpsw_get_msglevel(struct net_device *ndev)
+{
+ struct cpsw_priv *priv = netdev_priv(ndev);
+
+ return priv->msg_enable;
+}
+
+void cpsw_set_msglevel(struct net_device *ndev, u32 value)
+{
+ struct cpsw_priv *priv = netdev_priv(ndev);
+
+ priv->msg_enable = value;
+}
+
+int cpsw_get_coalesce(struct net_device *ndev, struct ethtool_coalesce *coal)
+{
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
+
+ coal->rx_coalesce_usecs = cpsw->coal_intvl;
+ return 0;
+}
+
+int cpsw_set_coalesce(struct net_device *ndev, struct ethtool_coalesce *coal)
+{
+ struct cpsw_priv *priv = netdev_priv(ndev);
+ u32 int_ctrl;
+ u32 num_interrupts = 0;
+ u32 prescale = 0;
+ u32 addnl_dvdr = 1;
+ u32 coal_intvl = 0;
+ struct cpsw_common *cpsw = priv->cpsw;
+
+ coal_intvl = coal->rx_coalesce_usecs;
+
+ int_ctrl = readl(&cpsw->wr_regs->int_control);
+ prescale = cpsw->bus_freq_mhz * 4;
+
+ if (!coal->rx_coalesce_usecs) {
+ int_ctrl &= ~(CPSW_INTPRESCALE_MASK | CPSW_INTPACEEN);
+ goto update_return;
+ }
+
+ if (coal_intvl < CPSW_CMINTMIN_INTVL)
+ coal_intvl = CPSW_CMINTMIN_INTVL;
+
+ if (coal_intvl > CPSW_CMINTMAX_INTVL) {
+ /* Interrupt pacer works with 4us Pulse, we can
+ * throttle further by dilating the 4us pulse.
+ */
+ addnl_dvdr = CPSW_INTPRESCALE_MASK / prescale;
+
+ if (addnl_dvdr > 1) {
+ prescale *= addnl_dvdr;
+ if (coal_intvl > (CPSW_CMINTMAX_INTVL * addnl_dvdr))
+ coal_intvl = (CPSW_CMINTMAX_INTVL
+ * addnl_dvdr);
+ } else {
+ addnl_dvdr = 1;
+ coal_intvl = CPSW_CMINTMAX_INTVL;
+ }
+ }
+
+ num_interrupts = (1000 * addnl_dvdr) / coal_intvl;
+ writel(num_interrupts, &cpsw->wr_regs->rx_imax);
+ writel(num_interrupts, &cpsw->wr_regs->tx_imax);
+
+ int_ctrl |= CPSW_INTPACEEN;
+ int_ctrl &= (~CPSW_INTPRESCALE_MASK);
+ int_ctrl |= (prescale & CPSW_INTPRESCALE_MASK);
+
+update_return:
+ writel(int_ctrl, &cpsw->wr_regs->int_control);
+
+ cpsw_notice(priv, timer, "Set coalesce to %d usecs.\n", coal_intvl);
+ cpsw->coal_intvl = coal_intvl;
+
+ return 0;
+}
+
+int cpsw_get_sset_count(struct net_device *ndev, int sset)
+{
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
+
+ switch (sset) {
+ case ETH_SS_STATS:
+ return (CPSW_STATS_COMMON_LEN +
+ (cpsw->rx_ch_num + cpsw->tx_ch_num) *
+ CPSW_STATS_CH_LEN);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void cpsw_add_ch_strings(u8 **p, int ch_num, int rx_dir)
+{
+ int ch_stats_len;
+ int line;
+ int i;
+
+ ch_stats_len = CPSW_STATS_CH_LEN * ch_num;
+ for (i = 0; i < ch_stats_len; i++) {
+ line = i % CPSW_STATS_CH_LEN;
+ snprintf(*p, ETH_GSTRING_LEN,
+ "%s DMA chan %ld: %s", rx_dir ? "Rx" : "Tx",
+ (long)(i / CPSW_STATS_CH_LEN),
+ cpsw_gstrings_ch_stats[line].stat_string);
+ *p += ETH_GSTRING_LEN;
+ }
+}
+
+void cpsw_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
+{
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
+ u8 *p = data;
+ int i;
+
+ switch (stringset) {
+ case ETH_SS_STATS:
+ for (i = 0; i < CPSW_STATS_COMMON_LEN; i++) {
+ memcpy(p, cpsw_gstrings_stats[i].stat_string,
+ ETH_GSTRING_LEN);
+ p += ETH_GSTRING_LEN;
+ }
+
+ cpsw_add_ch_strings(&p, cpsw->rx_ch_num, 1);
+ cpsw_add_ch_strings(&p, cpsw->tx_ch_num, 0);
+ break;
+ }
+}
+
+void cpsw_get_ethtool_stats(struct net_device *ndev,
+ struct ethtool_stats *stats, u64 *data)
+{
+ u8 *p;
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
+ struct cpdma_chan_stats ch_stats;
+ int i, l, ch;
+
+ /* Collect Davinci CPDMA stats for Rx and Tx Channel */
+ for (l = 0; l < CPSW_STATS_COMMON_LEN; l++)
+ data[l] = readl(cpsw->hw_stats +
+ cpsw_gstrings_stats[l].stat_offset);
+
+ for (ch = 0; ch < cpsw->rx_ch_num; ch++) {
+ cpdma_chan_get_stats(cpsw->rxv[ch].ch, &ch_stats);
+ for (i = 0; i < CPSW_STATS_CH_LEN; i++, l++) {
+ p = (u8 *)&ch_stats +
+ cpsw_gstrings_ch_stats[i].stat_offset;
+ data[l] = *(u32 *)p;
+ }
+ }
+
+ for (ch = 0; ch < cpsw->tx_ch_num; ch++) {
+ cpdma_chan_get_stats(cpsw->txv[ch].ch, &ch_stats);
+ for (i = 0; i < CPSW_STATS_CH_LEN; i++, l++) {
+ p = (u8 *)&ch_stats +
+ cpsw_gstrings_ch_stats[i].stat_offset;
+ data[l] = *(u32 *)p;
+ }
+ }
+}
+
+void cpsw_get_pauseparam(struct net_device *ndev,
+ struct ethtool_pauseparam *pause)
+{
+ struct cpsw_priv *priv = netdev_priv(ndev);
+
+ pause->autoneg = AUTONEG_DISABLE;
+ pause->rx_pause = priv->rx_pause ? true : false;
+ pause->tx_pause = priv->tx_pause ? true : false;
+}
+
+void cpsw_get_wol(struct net_device *ndev, struct ethtool_wolinfo *wol)
+{
+ struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
+ int slave_no = cpsw_slave_index(cpsw, priv);
+
+ wol->supported = 0;
+ wol->wolopts = 0;
+
+ if (cpsw->slaves[slave_no].phy)
+ phy_ethtool_get_wol(cpsw->slaves[slave_no].phy, wol);
+}
+
+int cpsw_set_wol(struct net_device *ndev, struct ethtool_wolinfo *wol)
+{
+ struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
+ int slave_no = cpsw_slave_index(cpsw, priv);
+
+ if (cpsw->slaves[slave_no].phy)
+ return phy_ethtool_set_wol(cpsw->slaves[slave_no].phy, wol);
+ else
+ return -EOPNOTSUPP;
+}
+
+int cpsw_get_regs_len(struct net_device *ndev)
+{
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
+
+ return cpsw->data.ale_entries * ALE_ENTRY_WORDS * sizeof(u32);
+}
+
+void cpsw_get_regs(struct net_device *ndev, struct ethtool_regs *regs, void *p)
+{
+ u32 *reg = p;
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
+
+ /* update CPSW IP version */
+ regs->version = cpsw->version;
+
+ cpsw_ale_dump(cpsw->ale, reg);
+}
+
+int cpsw_ethtool_op_begin(struct net_device *ndev)
+{
+ struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
+ int ret;
+
+ ret = pm_runtime_get_sync(cpsw->dev);
+ if (ret < 0) {
+ cpsw_err(priv, drv, "ethtool begin failed %d\n", ret);
+ pm_runtime_put_noidle(cpsw->dev);
+ }
+
+ return ret;
+}
+
+void cpsw_ethtool_op_complete(struct net_device *ndev)
+{
+ struct cpsw_priv *priv = netdev_priv(ndev);
+ int ret;
+
+ ret = pm_runtime_put(priv->cpsw->dev);
+ if (ret < 0)
+ cpsw_err(priv, drv, "ethtool complete failed %d\n", ret);
+}
+
+void cpsw_get_channels(struct net_device *ndev, struct ethtool_channels *ch)
+{
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
+
+ ch->max_rx = cpsw->quirk_irq ? 1 : CPSW_MAX_QUEUES;
+ ch->max_tx = cpsw->quirk_irq ? 1 : CPSW_MAX_QUEUES;
+ ch->max_combined = 0;
+ ch->max_other = 0;
+ ch->other_count = 0;
+ ch->rx_count = cpsw->rx_ch_num;
+ ch->tx_count = cpsw->tx_ch_num;
+ ch->combined_count = 0;
+}
+
+int cpsw_get_link_ksettings(struct net_device *ndev,
+ struct ethtool_link_ksettings *ecmd)
+{
+ struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
+ int slave_no = cpsw_slave_index(cpsw, priv);
+
+ if (!cpsw->slaves[slave_no].phy)
+ return -EOPNOTSUPP;
+
+ phy_ethtool_ksettings_get(cpsw->slaves[slave_no].phy, ecmd);
+ return 0;
+}
+
+int cpsw_set_link_ksettings(struct net_device *ndev,
+ const struct ethtool_link_ksettings *ecmd)
+{
+ struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
+ int slave_no = cpsw_slave_index(cpsw, priv);
+
+ if (!cpsw->slaves[slave_no].phy)
+ return -EOPNOTSUPP;
+
+ return phy_ethtool_ksettings_set(cpsw->slaves[slave_no].phy, ecmd);
+}
+
+int cpsw_get_eee(struct net_device *ndev, struct ethtool_eee *edata)
+{
+ struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
+ int slave_no = cpsw_slave_index(cpsw, priv);
+
+ if (cpsw->slaves[slave_no].phy)
+ return phy_ethtool_get_eee(cpsw->slaves[slave_no].phy, edata);
+ else
+ return -EOPNOTSUPP;
+}
+
+int cpsw_set_eee(struct net_device *ndev, struct ethtool_eee *edata)
+{
+ struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
+ int slave_no = cpsw_slave_index(cpsw, priv);
+
+ if (cpsw->slaves[slave_no].phy)
+ return phy_ethtool_set_eee(cpsw->slaves[slave_no].phy, edata);
+ else
+ return -EOPNOTSUPP;
+}
+
+int cpsw_nway_reset(struct net_device *ndev)
+{
+ struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
+ int slave_no = cpsw_slave_index(cpsw, priv);
+
+ if (cpsw->slaves[slave_no].phy)
+ return genphy_restart_aneg(cpsw->slaves[slave_no].phy);
+ else
+ return -EOPNOTSUPP;
+}
+
+static void cpsw_suspend_data_pass(struct net_device *ndev)
+{
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
+ struct cpsw_slave *slave;
+ int i;
+
+ /* Disable NAPI scheduling */
+ cpsw_intr_disable(cpsw);
+
+ /* Stop all transmit queues for every network device.
+ * Disable re-using rx descriptors with dormant_on.
+ */
+ for (i = cpsw->data.slaves, slave = cpsw->slaves; i; i--, slave++) {
+ if (!(slave->ndev && netif_running(slave->ndev)))
+ continue;
+
+ netif_tx_stop_all_queues(slave->ndev);
+ netif_dormant_on(slave->ndev);
+ }
+
+ /* Handle rest of tx packets and stop cpdma channels */
+ cpdma_ctlr_stop(cpsw->dma);
+}
+
+static int cpsw_resume_data_pass(struct net_device *ndev)
+{
+ struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
+ struct cpsw_slave *slave;
+ int i, ret;
+
+ /* Allow rx packets handling */
+ for (i = cpsw->data.slaves, slave = cpsw->slaves; i; i--, slave++)
+ if (slave->ndev && netif_running(slave->ndev))
+ netif_dormant_off(slave->ndev);
+
+ /* After this receive is started */
+ if (cpsw->usage_count) {
+ ret = cpsw_fill_rx_channels(priv);
+ if (ret)
+ return ret;
+
+ cpdma_ctlr_start(cpsw->dma);
+ cpsw_intr_enable(cpsw);
+ }
+
+ /* Resume transmit for every affected interface */
+ for (i = cpsw->data.slaves, slave = cpsw->slaves; i; i--, slave++)
+ if (slave->ndev && netif_running(slave->ndev))
+ netif_tx_start_all_queues(slave->ndev);
+
+ return 0;
+}
+
+static int cpsw_check_ch_settings(struct cpsw_common *cpsw,
+ struct ethtool_channels *ch)
+{
+ if (cpsw->quirk_irq) {
+ dev_err(cpsw->dev, "Maximum one tx/rx queue is allowed");
+ return -EOPNOTSUPP;
+ }
+
+ if (ch->combined_count)
+ return -EINVAL;
+
+ /* verify we have at least one channel in each direction */
+ if (!ch->rx_count || !ch->tx_count)
+ return -EINVAL;
+
+ if (ch->rx_count > cpsw->data.channels ||
+ ch->tx_count > cpsw->data.channels)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int cpsw_update_channels_res(struct cpsw_priv *priv, int ch_num, int rx,
+ cpdma_handler_fn rx_handler)
+{
+ struct cpsw_common *cpsw = priv->cpsw;
+ void (*handler)(void *, int, int);
+ struct netdev_queue *queue;
+ struct cpsw_vector *vec;
+ int ret, *ch, vch;
+
+ if (rx) {
+ ch = &cpsw->rx_ch_num;
+ vec = cpsw->rxv;
+ handler = rx_handler;
+ } else {
+ ch = &cpsw->tx_ch_num;
+ vec = cpsw->txv;
+ handler = cpsw_tx_handler;
+ }
+
+ while (*ch < ch_num) {
+ vch = rx ? *ch : 7 - *ch;
+ vec[*ch].ch = cpdma_chan_create(cpsw->dma, vch, handler, rx);
+ queue = netdev_get_tx_queue(priv->ndev, *ch);
+ queue->tx_maxrate = 0;
+
+ if (IS_ERR(vec[*ch].ch))
+ return PTR_ERR(vec[*ch].ch);
+
+ if (!vec[*ch].ch)
+ return -EINVAL;
+
+ cpsw_info(priv, ifup, "created new %d %s channel\n", *ch,
+ (rx ? "rx" : "tx"));
+ (*ch)++;
+ }
+
+ while (*ch > ch_num) {
+ (*ch)--;
+
+ ret = cpdma_chan_destroy(vec[*ch].ch);
+ if (ret)
+ return ret;
+
+ cpsw_info(priv, ifup, "destroyed %d %s channel\n", *ch,
+ (rx ? "rx" : "tx"));
+ }
+
+ return 0;
+}
+
+int cpsw_set_channels_common(struct net_device *ndev,
+ struct ethtool_channels *chs,
+ cpdma_handler_fn rx_handler)
+{
+ struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
+ struct cpsw_slave *slave;
+ int i, ret;
+
+ ret = cpsw_check_ch_settings(cpsw, chs);
+ if (ret < 0)
+ return ret;
+
+ cpsw_suspend_data_pass(ndev);
+
+ ret = cpsw_update_channels_res(priv, chs->rx_count, 1, rx_handler);
+ if (ret)
+ goto err;
+
+ ret = cpsw_update_channels_res(priv, chs->tx_count, 0, rx_handler);
+ if (ret)
+ goto err;
+
+ for (i = cpsw->data.slaves, slave = cpsw->slaves; i; i--, slave++) {
+ if (!(slave->ndev && netif_running(slave->ndev)))
+ continue;
+
+ /* Inform stack about new count of queues */
+ ret = netif_set_real_num_tx_queues(slave->ndev,
+ cpsw->tx_ch_num);
+ if (ret) {
+ dev_err(priv->dev, "cannot set real number of tx queues\n");
+ goto err;
+ }
+
+ ret = netif_set_real_num_rx_queues(slave->ndev,
+ cpsw->rx_ch_num);
+ if (ret) {
+ dev_err(priv->dev, "cannot set real number of rx queues\n");
+ goto err;
+ }
+ }
+
+ if (cpsw->usage_count)
+ cpsw_split_res(cpsw);
+
+ ret = cpsw_resume_data_pass(ndev);
+ if (!ret)
+ return 0;
+err:
+ dev_err(priv->dev, "cannot update channels number, closing device\n");
+ dev_close(ndev);
+ return ret;
+}
+
+void cpsw_get_ringparam(struct net_device *ndev,
+ struct ethtool_ringparam *ering)
+{
+ struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
+
+ /* not supported */
+ ering->tx_max_pending = 0;
+ ering->tx_pending = cpdma_get_num_tx_descs(cpsw->dma);
+ ering->rx_max_pending = cpsw->descs_pool_size - CPSW_MAX_QUEUES;
+ ering->rx_pending = cpdma_get_num_rx_descs(cpsw->dma);
+}
+
+int cpsw_set_ringparam(struct net_device *ndev,
+ struct ethtool_ringparam *ering)
+{
+ struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
+ int ret;
+
+ /* ignore ering->tx_pending - only rx_pending adjustment is supported */
+
+ if (ering->rx_mini_pending || ering->rx_jumbo_pending ||
+ ering->rx_pending < CPSW_MAX_QUEUES ||
+ ering->rx_pending > (cpsw->descs_pool_size - CPSW_MAX_QUEUES))
+ return -EINVAL;
+
+ if (ering->rx_pending == cpdma_get_num_rx_descs(cpsw->dma))
+ return 0;
+
+ cpsw_suspend_data_pass(ndev);
+
+ cpdma_set_num_rx_descs(cpsw->dma, ering->rx_pending);
+
+ if (cpsw->usage_count)
+ cpdma_chan_split_pool(cpsw->dma);
+
+ ret = cpsw_resume_data_pass(ndev);
+ if (!ret)
+ return 0;
+
+ dev_err(cpsw->dev, "cannot set ring params, closing device\n");
+ dev_close(ndev);
+ return ret;
+}
+
+#if IS_ENABLED(CONFIG_TI_CPTS)
+int cpsw_get_ts_info(struct net_device *ndev, struct ethtool_ts_info *info)
+{
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
+
+ info->so_timestamping =
+ SOF_TIMESTAMPING_TX_HARDWARE |
+ SOF_TIMESTAMPING_TX_SOFTWARE |
+ SOF_TIMESTAMPING_RX_HARDWARE |
+ SOF_TIMESTAMPING_RX_SOFTWARE |
+ SOF_TIMESTAMPING_SOFTWARE |
+ SOF_TIMESTAMPING_RAW_HARDWARE;
+ info->phc_index = cpsw->cpts->phc_index;
+ info->tx_types =
+ (1 << HWTSTAMP_TX_OFF) |
+ (1 << HWTSTAMP_TX_ON);
+ info->rx_filters =
+ (1 << HWTSTAMP_FILTER_NONE) |
+ (1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
+ (1 << HWTSTAMP_FILTER_PTP_V2_EVENT);
+ return 0;
+}
+#else
+int cpsw_get_ts_info(struct net_device *ndev, struct ethtool_ts_info *info)
+{
+ info->so_timestamping =
+ SOF_TIMESTAMPING_TX_SOFTWARE |
+ SOF_TIMESTAMPING_RX_SOFTWARE |
+ SOF_TIMESTAMPING_SOFTWARE;
+ info->phc_index = -1;
+ info->tx_types = 0;
+ info->rx_filters = 0;
+ return 0;
+}
+#endif
diff --git a/drivers/net/ethernet/ti/cpsw_priv.h b/drivers/net/ethernet/ti/cpsw_priv.h
index 74622a50af96..c826fb2c78db 100644
--- a/drivers/net/ethernet/ti/cpsw_priv.h
+++ b/drivers/net/ethernet/ti/cpsw_priv.h
@@ -6,6 +6,8 @@
#ifndef DRIVERS_NET_ETHERNET_TI_CPSW_PRIV_H_
#define DRIVERS_NET_ETHERNET_TI_CPSW_PRIV_H_

+#include "davinci_cpdma.h"
+
#define CPSW_DEBUG (NETIF_MSG_HW | NETIF_MSG_WOL | \
NETIF_MSG_DRV | NETIF_MSG_LINK | \
NETIF_MSG_IFUP | NETIF_MSG_INTR | \
@@ -269,44 +271,6 @@ struct cpsw_host_regs {
u32 cpdma_rx_chan_map;
};

-struct cpsw_hw_stats {
- u32 rxgoodframes;
- u32 rxbroadcastframes;
- u32 rxmulticastframes;
- u32 rxpauseframes;
- u32 rxcrcerrors;
- u32 rxaligncodeerrors;
- u32 rxoversizedframes;
- u32 rxjabberframes;
- u32 rxundersizedframes;
- u32 rxfragments;
- u32 __pad_0[2];
- u32 rxoctets;
- u32 txgoodframes;
- u32 txbroadcastframes;
- u32 txmulticastframes;
- u32 txpauseframes;
- u32 txdeferredframes;
- u32 txcollisionframes;
- u32 txsinglecollframes;
- u32 txmultcollframes;
- u32 txexcessivecollisions;
- u32 txlatecollisions;
- u32 txunderrun;
- u32 txcarriersenseerrors;
- u32 txoctets;
- u32 octetframes64;
- u32 octetframes65t127;
- u32 octetframes128t255;
- u32 octetframes256t511;
- u32 octetframes512t1023;
- u32 octetframes1024tup;
- u32 netoctets;
- u32 rxsofoverruns;
- u32 rxmofoverruns;
- u32 rxdmaoverruns;
-};
-
struct cpsw_slave_data {
struct device_node *phy_node;
char phy_id[MII_BUS_ID_SIZE];
@@ -368,6 +332,7 @@ struct cpsw_common {
u32 coal_intvl;
u32 bus_freq_mhz;
int rx_packet_max;
+ int descs_pool_size;
struct cpsw_slave *slaves;
struct cpdma_ctlr *dma;
struct cpsw_vector txv[CPSW_MAX_QUEUES];
@@ -399,9 +364,6 @@ struct cpsw_priv {
struct cpsw_common *cpsw;
};

-#define CPSW_STATS_COMMON_LEN ARRAY_SIZE(cpsw_gstrings_stats)
-#define CPSW_STATS_CH_LEN ARRAY_SIZE(cpsw_gstrings_ch_stats)
-
#define ndev_to_cpsw(ndev) (((struct cpsw_priv *)netdev_priv(ndev))->cpsw)
#define napi_to_cpsw(napi) container_of(napi, struct cpsw_common, napi)
#define for_each_slave(priv, func, arg...) \
@@ -436,5 +398,44 @@ struct addr_sync_ctx {

int cpsw_init_common(struct cpsw_common *cpsw, void __iomem *ss_regs,
int ale_ageout, u32 desc_mem_phys, int descs_pool_size);
+void cpsw_split_res(struct cpsw_common *cpsw);
+int cpsw_fill_rx_channels(struct cpsw_priv *priv);
+void cpsw_intr_enable(struct cpsw_common *cpsw);
+void cpsw_intr_disable(struct cpsw_common *cpsw);
+void cpsw_tx_handler(void *token, int len, int status);
+
+/* ethtool */
+u32 cpsw_get_msglevel(struct net_device *ndev);
+void cpsw_set_msglevel(struct net_device *ndev, u32 value);
+int cpsw_get_coalesce(struct net_device *ndev, struct ethtool_coalesce *coal);
+int cpsw_set_coalesce(struct net_device *ndev, struct ethtool_coalesce *coal);
+int cpsw_get_sset_count(struct net_device *ndev, int sset);
+void cpsw_get_strings(struct net_device *ndev, u32 stringset, u8 *data);
+void cpsw_get_ethtool_stats(struct net_device *ndev,
+ struct ethtool_stats *stats, u64 *data);
+void cpsw_get_pauseparam(struct net_device *ndev,
+ struct ethtool_pauseparam *pause);
+void cpsw_get_wol(struct net_device *ndev, struct ethtool_wolinfo *wol);
+int cpsw_set_wol(struct net_device *ndev, struct ethtool_wolinfo *wol);
+int cpsw_get_regs_len(struct net_device *ndev);
+void cpsw_get_regs(struct net_device *ndev, struct ethtool_regs *regs, void *p);
+int cpsw_ethtool_op_begin(struct net_device *ndev);
+void cpsw_ethtool_op_complete(struct net_device *ndev);
+void cpsw_get_channels(struct net_device *ndev, struct ethtool_channels *ch);
+int cpsw_get_link_ksettings(struct net_device *ndev,
+ struct ethtool_link_ksettings *ecmd);
+int cpsw_set_link_ksettings(struct net_device *ndev,
+ const struct ethtool_link_ksettings *ecmd);
+int cpsw_get_eee(struct net_device *ndev, struct ethtool_eee *edata);
+int cpsw_set_eee(struct net_device *ndev, struct ethtool_eee *edata);
+int cpsw_nway_reset(struct net_device *ndev);
+void cpsw_get_ringparam(struct net_device *ndev,
+ struct ethtool_ringparam *ering);
+int cpsw_set_ringparam(struct net_device *ndev,
+ struct ethtool_ringparam *ering);
+int cpsw_set_channels_common(struct net_device *ndev,
+ struct ethtool_channels *chs,
+ cpdma_handler_fn rx_handler);
+int cpsw_get_ts_info(struct net_device *ndev, struct ethtool_ts_info *info);

#endif /* DRIVERS_NET_ETHERNET_TI_CPSW_PRIV_H_ */
--
2.17.1