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liquidio:CN23XX pause frame support

Browse source 
Adds support for pause frame and priv flag for cn23xx
device.

Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Raghu Vatsavayi 2016-09-01 11:16:11 -07:00 committed by David S. Miller
parent 9ded1a512f
commit 30136395a2
3 changed files with 126 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

110
drivers/net/ethernet/cavium/liquidio/lio_ethtool.c
View file

@ -190,6 +190,10 @@ static const char oct_droq_stats_strings[][ETH_GSTRING_LEN] = {
"buffer_alloc_failure",
};
/* LiquidIO driver private flags */
static const char oct_priv_flags_strings[][ETH_GSTRING_LEN] = {
};
#define OCTNIC_NCMD_AUTONEG_ON 0x1
#define OCTNIC_NCMD_PHY_ON 0x2
@ -658,6 +662,69 @@ lio_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
pause->rx_pause = oct->rx_pause;
}
static int
lio_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
{
/* Notes: Not supporting any auto negotiation in these
* drivers.
*/
struct lio *lio = GET_LIO(netdev);
struct octeon_device *oct = lio->oct_dev;
struct octnic_ctrl_pkt nctrl;
struct oct_link_info *linfo = &lio->linfo;
int ret = 0;
if (oct->chip_id != OCTEON_CN23XX_PF_VID)
return -EINVAL;
if (linfo->link.s.duplex == 0) {
/*no flow control for half duplex*/
if (pause->rx_pause || pause->tx_pause)
return -EINVAL;
}
/*do not support autoneg of link flow control*/
if (pause->autoneg == AUTONEG_ENABLE)
return -EINVAL;
memset(&nctrl, 0, sizeof(struct octnic_ctrl_pkt));
nctrl.ncmd.u64 = 0;
nctrl.ncmd.s.cmd = OCTNET_CMD_SET_FLOW_CTL;
nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
nctrl.wait_time = 100;
nctrl.netpndev = (u64)netdev;
nctrl.cb_fn = liquidio_link_ctrl_cmd_completion;
if (pause->rx_pause) {
/*enable rx pause*/
nctrl.ncmd.s.param1 = 1;
} else {
/*disable rx pause*/
nctrl.ncmd.s.param1 = 0;
}
if (pause->tx_pause) {
/*enable tx pause*/
nctrl.ncmd.s.param2 = 1;
} else {
/*disable tx pause*/
nctrl.ncmd.s.param2 = 0;
}
ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl);
if (ret < 0) {
dev_err(&oct->pci_dev->dev, "Failed to set pause parameter\n");
return -EINVAL;
}
oct->rx_pause = pause->rx_pause;
oct->tx_pause = pause->tx_pause;
return 0;
}
static void
lio_get_ethtool_stats(struct net_device *netdev,
struct ethtool_stats *stats __attribute__((unused)),
@ -925,6 +992,27 @@ lio_get_ethtool_stats(struct net_device *netdev,
}
}
static void lio_get_priv_flags_strings(struct lio *lio, u8 *data)
{
struct octeon_device *oct_dev = lio->oct_dev;
int i;
switch (oct_dev->chip_id) {
case OCTEON_CN23XX_PF_VID:
for (i = 0; i < ARRAY_SIZE(oct_priv_flags_strings); i++) {
sprintf(data, "%s", oct_priv_flags_strings[i]);
data += ETH_GSTRING_LEN;
}
break;
case OCTEON_CN68XX:
case OCTEON_CN66XX:
break;
default:
netif_info(lio, drv, lio->netdev, "Unknown Chip !!\n");
break;
}
}
static void lio_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
{
struct lio *lio = GET_LIO(netdev);
@ -964,12 +1052,31 @@ static void lio_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
}
break;
case ETH_SS_PRIV_FLAGS:
lio_get_priv_flags_strings(lio, data);
break;
default:
netif_info(lio, drv, lio->netdev, "Unknown Stringset !!\n");
break;
}
}
static int lio_get_priv_flags_ss_count(struct lio *lio)
{
struct octeon_device *oct_dev = lio->oct_dev;
switch (oct_dev->chip_id) {
case OCTEON_CN23XX_PF_VID:
return ARRAY_SIZE(oct_priv_flags_strings);
case OCTEON_CN68XX:
case OCTEON_CN66XX:
return -EOPNOTSUPP;
default:
netif_info(lio, drv, lio->netdev, "Unknown Chip !!\n");
return -EOPNOTSUPP;
}
}
static int lio_get_sset_count(struct net_device *netdev, int sset)
{
struct lio *lio = GET_LIO(netdev);
@ -980,6 +1087,8 @@ static int lio_get_sset_count(struct net_device *netdev, int sset)
return (ARRAY_SIZE(oct_stats_strings) +
ARRAY_SIZE(oct_iq_stats_strings) * oct_dev->num_iqs +
ARRAY_SIZE(oct_droq_stats_strings) * oct_dev->num_oqs);
case ETH_SS_PRIV_FLAGS:
return lio_get_priv_flags_ss_count(lio);
default:
return -EOPNOTSUPP;
}
@ -2096,6 +2205,7 @@ static const struct ethtool_ops lio_ethtool_ops = {
.get_strings = lio_get_strings,
.get_ethtool_stats = lio_get_ethtool_stats,
.get_pauseparam = lio_get_pauseparam,
.set_pauseparam = lio_set_pauseparam,
.get_regs_len = lio_get_regs_len,
.get_regs = lio_get_regs,
.get_msglevel = lio_get_msglevel,

6
drivers/net/ethernet/cavium/liquidio/lio_main.c
View file

@ -3934,6 +3934,9 @@ static int setup_nic_devices(struct octeon_device *octeon_dev)
/* Register ethtool support */
liquidio_set_ethtool_ops(netdev);
if (lio->oct_dev->chip_id == OCTEON_CN23XX_PF_VID)
octeon_dev->priv_flags = OCT_PRIV_FLAG_DEFAULT;
else
octeon_dev->priv_flags = 0x0;
if (netdev->features & NETIF_F_LRO)
@ -4015,8 +4018,7 @@ static int liquidio_init_nic_module(struct octeon_device *oct)
/* run port_config command for each port */
oct->ifcount = num_nic_ports;
memset(oct->props, 0,
sizeof(struct octdev_props) * num_nic_ports);
memset(oct->props, 0, sizeof(struct octdev_props) * num_nic_ports);
for (i = 0; i < MAX_OCTEON_LINKS; i++)
oct->props[i].gmxport = -1;

11
drivers/net/ethernet/cavium/liquidio/octeon_device.h
View file

@ -755,8 +755,15 @@ enum {
OCT_PRIV_FLAG_TX_BYTES = 0, /* Tx interrupts by pending byte count */
};
static inline void lio_set_priv_flag(struct octeon_device *octdev, u32 flag,
u32 val)
#define OCT_PRIV_FLAG_DEFAULT 0x0
static inline u32 lio_get_priv_flag(struct octeon_device *octdev, u32 flag)
{
return !!(octdev->priv_flags & (0x1 << flag));
}
static inline void lio_set_priv_flag(struct octeon_device *octdev,
u32 flag, u32 val)
{
if (val)
octdev->priv_flags |= (0x1 << flag);