mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 02:39:48 +00:00
![Yufeng Mo](/assets/img/avatar_default.png)
In order to support more coalesce parameters through netlink, add two new parameter kernel_coal and extack for .set_coalesce and .get_coalesce, then some extra info can return to user with the netlink API. Signed-off-by: Yufeng Mo <moyufeng@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
750 lines
19 KiB
C
750 lines
19 KiB
C
// 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, \
|
|
sizeof_field(struct cpsw_hw_stats, m), \
|
|
offsetof(struct cpsw_hw_stats, m)
|
|
#define CPDMA_RX_STAT(m) CPDMA_RX_STATS, \
|
|
sizeof_field(struct cpdma_chan_stats, m), \
|
|
offsetof(struct cpdma_chan_stats, m)
|
|
#define CPDMA_TX_STAT(m) CPDMA_TX_STATS, \
|
|
sizeof_field(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 kernel_ethtool_coalesce *kernel_coal,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
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 kernel_ethtool_coalesce *kernel_coal,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
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_ale_get_num_entries(cpsw->ale) *
|
|
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);
|
|
int i;
|
|
|
|
/* Disable NAPI scheduling */
|
|
cpsw_intr_disable(cpsw);
|
|
|
|
/* Stop all transmit queues for every network device.
|
|
*/
|
|
for (i = 0; i < cpsw->data.slaves; i++) {
|
|
ndev = cpsw->slaves[i].ndev;
|
|
if (!(ndev && netif_running(ndev)))
|
|
continue;
|
|
|
|
netif_tx_stop_all_queues(ndev);
|
|
|
|
/* Barrier, so that stop_queue visible to other cpus */
|
|
smp_mb__after_atomic();
|
|
}
|
|
|
|
/* 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;
|
|
int i, ret;
|
|
|
|
/* 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 = 0; i < cpsw->data.slaves; i++) {
|
|
ndev = cpsw->slaves[i].ndev;
|
|
if (ndev && netif_running(ndev))
|
|
netif_tx_start_all_queues(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;
|
|
}
|
|
|
|
static void cpsw_fail(struct cpsw_common *cpsw)
|
|
{
|
|
struct net_device *ndev;
|
|
int i;
|
|
|
|
for (i = 0; i < cpsw->data.slaves; i++) {
|
|
ndev = cpsw->slaves[i].ndev;
|
|
if (ndev)
|
|
dev_close(ndev);
|
|
}
|
|
}
|
|
|
|
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 net_device *sl_ndev;
|
|
int i, new_pools, ret;
|
|
|
|
ret = cpsw_check_ch_settings(cpsw, chs);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
cpsw_suspend_data_pass(ndev);
|
|
|
|
new_pools = (chs->rx_count != cpsw->rx_ch_num) && cpsw->usage_count;
|
|
|
|
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 = 0; i < cpsw->data.slaves; i++) {
|
|
sl_ndev = cpsw->slaves[i].ndev;
|
|
if (!(sl_ndev && netif_running(sl_ndev)))
|
|
continue;
|
|
|
|
/* Inform stack about new count of queues */
|
|
ret = netif_set_real_num_tx_queues(sl_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(sl_ndev, cpsw->rx_ch_num);
|
|
if (ret) {
|
|
dev_err(priv->dev, "cannot set real number of rx queues\n");
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
cpsw_split_res(cpsw);
|
|
|
|
if (new_pools) {
|
|
cpsw_destroy_xdp_rxqs(cpsw);
|
|
ret = cpsw_create_xdp_rxqs(cpsw);
|
|
if (ret)
|
|
goto err;
|
|
}
|
|
|
|
ret = cpsw_resume_data_pass(ndev);
|
|
if (!ret)
|
|
return 0;
|
|
err:
|
|
dev_err(priv->dev, "cannot update channels number, closing device\n");
|
|
cpsw_fail(cpsw);
|
|
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 = cpsw->descs_pool_size - CPSW_MAX_QUEUES;
|
|
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_common *cpsw = ndev_to_cpsw(ndev);
|
|
int descs_num, 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;
|
|
|
|
descs_num = cpdma_get_num_rx_descs(cpsw->dma);
|
|
if (ering->rx_pending == descs_num)
|
|
return 0;
|
|
|
|
cpsw_suspend_data_pass(ndev);
|
|
|
|
ret = cpdma_set_num_rx_descs(cpsw->dma, ering->rx_pending);
|
|
if (ret) {
|
|
if (cpsw_resume_data_pass(ndev))
|
|
goto err;
|
|
|
|
return ret;
|
|
}
|
|
|
|
if (cpsw->usage_count) {
|
|
cpsw_destroy_xdp_rxqs(cpsw);
|
|
ret = cpsw_create_xdp_rxqs(cpsw);
|
|
if (ret)
|
|
goto err;
|
|
}
|
|
|
|
ret = cpsw_resume_data_pass(ndev);
|
|
if (!ret)
|
|
return 0;
|
|
err:
|
|
cpdma_set_num_rx_descs(cpsw->dma, descs_num);
|
|
dev_err(cpsw->dev, "cannot set ring params, closing device\n");
|
|
cpsw_fail(cpsw);
|
|
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_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
|