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liquidio: support use of ethtool to set link speed of CN23XX-225 cards

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Support setting the link speed of CN23XX-225 cards (which can do 25Gbps or
10Gbps) via ethtool_ops.set_link_ksettings.

Also fix the function assigned to ethtool_ops.get_link_ksettings to use the
new link_ksettings api completely (instead of partially via
ethtool_convert_legacy_u32_to_link_mode).

Signed-off-by: Weilin Chang <weilin.chang@cavium.com>
Acked-by: Raghu Vatsavayi <raghu.vatsavayi@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Weilin Chang 2018-05-04 11:07:19 -07:00 committed by David S. Miller
parent 7f625bdf33
commit 18b338f5f9
7 changed files with 425 additions and 24 deletions
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196
drivers/net/ethernet/cavium/liquidio/lio_core.c
View file

@ -1481,3 +1481,199 @@ int octnet_get_link_stats(struct net_device *netdev)
return 0;
}
static void liquidio_nic_seapi_ctl_callback(struct octeon_device *oct,
u32 status,
void *buf)
{
struct liquidio_nic_seapi_ctl_context *ctx;
struct octeon_soft_command *sc = buf;
ctx = sc->ctxptr;
oct = lio_get_device(ctx->octeon_id);
if (status) {
dev_err(&oct->pci_dev->dev, "%s: instruction failed. Status: %llx\n",
__func__,
CVM_CAST64(status));
}
ctx->status = status;
complete(&ctx->complete);
}
int liquidio_set_speed(struct lio *lio, int speed)
{
struct liquidio_nic_seapi_ctl_context *ctx;
struct octeon_device *oct = lio->oct_dev;
struct oct_nic_seapi_resp *resp;
struct octeon_soft_command *sc;
union octnet_cmd *ncmd;
u32 ctx_size;
int retval;
u32 var;
if (oct->speed_setting == speed)
return 0;
if (!OCTEON_CN23XX_PF(oct)) {
dev_err(&oct->pci_dev->dev, "%s: SET SPEED only for PF\n",
__func__);
return -EOPNOTSUPP;
}
ctx_size = sizeof(struct liquidio_nic_seapi_ctl_context);
sc = octeon_alloc_soft_command(oct, OCTNET_CMD_SIZE,
sizeof(struct oct_nic_seapi_resp),
ctx_size);
if (!sc)
return -ENOMEM;
ncmd = sc->virtdptr;
ctx = sc->ctxptr;
resp = sc->virtrptr;
memset(resp, 0, sizeof(struct oct_nic_seapi_resp));
ctx->octeon_id = lio_get_device_id(oct);
ctx->status = 0;
init_completion(&ctx->complete);
ncmd->u64 = 0;
ncmd->s.cmd = SEAPI_CMD_SPEED_SET;
ncmd->s.param1 = speed;
octeon_swap_8B_data((u64 *)ncmd, (OCTNET_CMD_SIZE >> 3));
sc->iq_no = lio->linfo.txpciq[0].s.q_no;
octeon_prepare_soft_command(oct, sc, OPCODE_NIC,
OPCODE_NIC_UBOOT_CTL, 0, 0, 0);
sc->callback = liquidio_nic_seapi_ctl_callback;
sc->callback_arg = sc;
sc->wait_time = 5000;
retval = octeon_send_soft_command(oct, sc);
if (retval == IQ_SEND_FAILED) {
dev_info(&oct->pci_dev->dev, "Failed to send soft command\n");
retval = -EBUSY;
} else {
/* Wait for response or timeout */
if (wait_for_completion_timeout(&ctx->complete,
msecs_to_jiffies(10000)) == 0) {
dev_err(&oct->pci_dev->dev, "%s: sc timeout\n",
__func__);
octeon_free_soft_command(oct, sc);
return -EINTR;
}
retval = resp->status;
if (retval) {
dev_err(&oct->pci_dev->dev, "%s failed, retval=%d\n",
__func__, retval);
octeon_free_soft_command(oct, sc);
return -EIO;
}
var = be32_to_cpu((__force __be32)resp->speed);
if (var != speed) {
dev_err(&oct->pci_dev->dev,
"%s: setting failed speed= %x, expect %x\n",
__func__, var, speed);
}
oct->speed_setting = var;
}
octeon_free_soft_command(oct, sc);
return retval;
}
int liquidio_get_speed(struct lio *lio)
{
struct liquidio_nic_seapi_ctl_context *ctx;
struct octeon_device *oct = lio->oct_dev;
struct oct_nic_seapi_resp *resp;
struct octeon_soft_command *sc;
union octnet_cmd *ncmd;
u32 ctx_size;
int retval;
ctx_size = sizeof(struct liquidio_nic_seapi_ctl_context);
sc = octeon_alloc_soft_command(oct, OCTNET_CMD_SIZE,
sizeof(struct oct_nic_seapi_resp),
ctx_size);
if (!sc)
return -ENOMEM;
ncmd = sc->virtdptr;
ctx = sc->ctxptr;
resp = sc->virtrptr;
memset(resp, 0, sizeof(struct oct_nic_seapi_resp));
ctx->octeon_id = lio_get_device_id(oct);
ctx->status = 0;
init_completion(&ctx->complete);
ncmd->u64 = 0;
ncmd->s.cmd = SEAPI_CMD_SPEED_GET;
octeon_swap_8B_data((u64 *)ncmd, (OCTNET_CMD_SIZE >> 3));
sc->iq_no = lio->linfo.txpciq[0].s.q_no;
octeon_prepare_soft_command(oct, sc, OPCODE_NIC,
OPCODE_NIC_UBOOT_CTL, 0, 0, 0);
sc->callback = liquidio_nic_seapi_ctl_callback;
sc->callback_arg = sc;
sc->wait_time = 5000;
retval = octeon_send_soft_command(oct, sc);
if (retval == IQ_SEND_FAILED) {
dev_info(&oct->pci_dev->dev, "Failed to send soft command\n");
oct->no_speed_setting = 1;
oct->speed_setting = 25;
retval = -EBUSY;
} else {
if (wait_for_completion_timeout(&ctx->complete,
msecs_to_jiffies(10000)) == 0) {
dev_err(&oct->pci_dev->dev, "%s: sc timeout\n",
__func__);
oct->speed_setting = 25;
oct->no_speed_setting = 1;
octeon_free_soft_command(oct, sc);
return -EINTR;
}
retval = resp->status;
if (retval) {
dev_err(&oct->pci_dev->dev,
"%s failed retval=%d\n", __func__, retval);
oct->no_speed_setting = 1;
oct->speed_setting = 25;
octeon_free_soft_command(oct, sc);
retval = -EIO;
} else {
u32 var;
var = be32_to_cpu((__force __be32)resp->speed);
oct->speed_setting = var;
if (var == 0xffff) {
oct->no_speed_setting = 1;
/* unable to access boot variables
* get the default value based on the NIC type
*/
oct->speed_setting = 25;
}
}
}
octeon_free_soft_command(oct, sc);
return retval;
}

191
drivers/net/ethernet/cavium/liquidio/lio_ethtool.c
View file

@ -230,46 +230,147 @@ static int lio_get_link_ksettings(struct net_device *netdev,
struct lio *lio = GET_LIO(netdev);
struct octeon_device *oct = lio->oct_dev;
struct oct_link_info *linfo;
u32 supported = 0, advertising = 0;
linfo = &lio->linfo;
ethtool_link_ksettings_zero_link_mode(ecmd, supported);
ethtool_link_ksettings_zero_link_mode(ecmd, advertising);
switch (linfo->link.s.phy_type) {
case LIO_PHY_PORT_TP:
ecmd->base.port = PORT_TP;
supported = (SUPPORTED_10000baseT_Full |
SUPPORTED_TP | SUPPORTED_Pause);
advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_Pause);
ecmd->base.autoneg = AUTONEG_DISABLE;
ethtool_link_ksettings_add_link_mode(ecmd, supported, TP);
ethtool_link_ksettings_add_link_mode(ecmd, supported, Pause);
ethtool_link_ksettings_add_link_mode(ecmd, supported,
10000baseT_Full);
ethtool_link_ksettings_add_link_mode(ecmd, advertising, Pause);
ethtool_link_ksettings_add_link_mode(ecmd, advertising,
10000baseT_Full);
break;
case LIO_PHY_PORT_FIBRE:
ecmd->base.port = PORT_FIBRE;
if (linfo->link.s.speed == SPEED_10000) {
supported = SUPPORTED_10000baseT_Full;
advertising = ADVERTISED_10000baseT_Full;
}
supported |= SUPPORTED_FIBRE | SUPPORTED_Pause;
advertising |= ADVERTISED_Pause;
ecmd->base.autoneg = AUTONEG_DISABLE;
break;
}
if (linfo->link.s.if_mode == INTERFACE_MODE_XAUI ||
linfo->link.s.if_mode == INTERFACE_MODE_RXAUI ||
linfo->link.s.if_mode == INTERFACE_MODE_XLAUI ||
linfo->link.s.if_mode == INTERFACE_MODE_XFI) {
ethtool_convert_legacy_u32_to_link_mode(
ecmd->link_modes.supported, supported);
ethtool_convert_legacy_u32_to_link_mode(
ecmd->link_modes.advertising, advertising);
dev_dbg(&oct->pci_dev->dev, "ecmd->base.transceiver is XCVR_EXTERNAL\n");
} else {
dev_err(&oct->pci_dev->dev, "Unknown link interface reported %d\n",
dev_err(&oct->pci_dev->dev, "Unknown link interface mode: %d\n",
linfo->link.s.if_mode);
}
ecmd->base.port = PORT_FIBRE;
ecmd->base.autoneg = AUTONEG_DISABLE;
ethtool_link_ksettings_add_link_mode(ecmd, supported, FIBRE);
ethtool_link_ksettings_add_link_mode(ecmd, supported, Pause);
ethtool_link_ksettings_add_link_mode(ecmd, advertising, Pause);
if (oct->subsystem_id == OCTEON_CN2350_25GB_SUBSYS_ID ||
oct->subsystem_id == OCTEON_CN2360_25GB_SUBSYS_ID) {
if (OCTEON_CN23XX_PF(oct)) {
ethtool_link_ksettings_add_link_mode
(ecmd, supported, 25000baseSR_Full);
ethtool_link_ksettings_add_link_mode
(ecmd, supported, 25000baseKR_Full);
ethtool_link_ksettings_add_link_mode
(ecmd, supported, 25000baseCR_Full);
if (oct->no_speed_setting == 0) {
ethtool_link_ksettings_add_link_mode
(ecmd, supported,
10000baseSR_Full);
ethtool_link_ksettings_add_link_mode
(ecmd, supported,
10000baseKR_Full);
ethtool_link_ksettings_add_link_mode
(ecmd, supported,
10000baseCR_Full);
}
if (oct->no_speed_setting == 0)
liquidio_get_speed(lio);
else
oct->speed_setting = 25;
if (oct->speed_setting == 10) {
ethtool_link_ksettings_add_link_mode
(ecmd, advertising,
10000baseSR_Full);
ethtool_link_ksettings_add_link_mode
(ecmd, advertising,
10000baseKR_Full);
ethtool_link_ksettings_add_link_mode
(ecmd, advertising,
10000baseCR_Full);
}
if (oct->speed_setting == 25) {
ethtool_link_ksettings_add_link_mode
(ecmd, advertising,
25000baseSR_Full);
ethtool_link_ksettings_add_link_mode
(ecmd, advertising,
25000baseKR_Full);
ethtool_link_ksettings_add_link_mode
(ecmd, advertising,
25000baseCR_Full);
}
} else { /* VF */
if (linfo->link.s.speed == 10000) {
ethtool_link_ksettings_add_link_mode
(ecmd, supported,
10000baseSR_Full);
ethtool_link_ksettings_add_link_mode
(ecmd, supported,
10000baseKR_Full);
ethtool_link_ksettings_add_link_mode
(ecmd, supported,
10000baseCR_Full);
ethtool_link_ksettings_add_link_mode
(ecmd, advertising,
10000baseSR_Full);
ethtool_link_ksettings_add_link_mode
(ecmd, advertising,
10000baseKR_Full);
ethtool_link_ksettings_add_link_mode
(ecmd, advertising,
10000baseCR_Full);
}
if (linfo->link.s.speed == 25000) {
ethtool_link_ksettings_add_link_mode
(ecmd, supported,
25000baseSR_Full);
ethtool_link_ksettings_add_link_mode
(ecmd, supported,
25000baseKR_Full);
ethtool_link_ksettings_add_link_mode
(ecmd, supported,
25000baseCR_Full);
ethtool_link_ksettings_add_link_mode
(ecmd, advertising,
25000baseSR_Full);
ethtool_link_ksettings_add_link_mode
(ecmd, advertising,
25000baseKR_Full);
ethtool_link_ksettings_add_link_mode
(ecmd, advertising,
25000baseCR_Full);
}
}
} else {
ethtool_link_ksettings_add_link_mode(ecmd, supported,
10000baseT_Full);
ethtool_link_ksettings_add_link_mode(ecmd, advertising,
10000baseT_Full);
}
break;
}
if (linfo->link.s.link_up) {
ecmd->base.speed = linfo->link.s.speed;
ecmd->base.duplex = linfo->link.s.duplex;
@ -281,6 +382,51 @@ static int lio_get_link_ksettings(struct net_device *netdev,
return 0;
}
static int lio_set_link_ksettings(struct net_device *netdev,
const struct ethtool_link_ksettings *ecmd)
{
const int speed = ecmd->base.speed;
struct lio *lio = GET_LIO(netdev);
struct oct_link_info *linfo;
struct octeon_device *oct;
u32 is25G = 0;
oct = lio->oct_dev;
linfo = &lio->linfo;
if (oct->subsystem_id == OCTEON_CN2350_25GB_SUBSYS_ID ||
oct->subsystem_id == OCTEON_CN2360_25GB_SUBSYS_ID) {
is25G = 1;
} else {
return -EOPNOTSUPP;
}
if (oct->no_speed_setting) {
dev_err(&oct->pci_dev->dev, "%s: Changing speed is not supported\n",
__func__);
return -EOPNOTSUPP;
}
if ((ecmd->base.duplex != DUPLEX_UNKNOWN &&
ecmd->base.duplex != linfo->link.s.duplex) ||
ecmd->base.autoneg != AUTONEG_DISABLE ||
(ecmd->base.speed != 10000 && ecmd->base.speed != 25000 &&
ecmd->base.speed != SPEED_UNKNOWN))
return -EOPNOTSUPP;
if ((oct->speed_boot == speed / 1000) &&
oct->speed_boot == oct->speed_setting)
return 0;
liquidio_set_speed(lio, speed / 1000);
dev_dbg(&oct->pci_dev->dev, "Port speed is set to %dG\n",
oct->speed_setting);
return 0;
}
static void
lio_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
{
@ -2966,6 +3112,7 @@ static int lio_set_priv_flags(struct net_device *netdev, u32 flags)
static const struct ethtool_ops lio_ethtool_ops = {
.get_link_ksettings = lio_get_link_ksettings,
.set_link_ksettings = lio_set_link_ksettings,
.get_link = ethtool_op_get_link,
.get_drvinfo = lio_get_drvinfo,
.get_ringparam = lio_ethtool_get_ringparam,

20
drivers/net/ethernet/cavium/liquidio/lio_main.c
View file

@ -912,6 +912,9 @@ liquidio_probe(struct pci_dev *pdev,
/* set linux specific device pointer */
oct_dev->pci_dev = (void *)pdev;
oct_dev->subsystem_id = pdev->subsystem_vendor |
(pdev->subsystem_device << 16);
hs = &handshake[oct_dev->octeon_id];
init_completion(&hs->init);
init_completion(&hs->started);
@ -3664,6 +3667,23 @@ static int setup_nic_devices(struct octeon_device *octeon_dev)
"NIC ifidx:%d Setup successful\n", i);
octeon_free_soft_command(octeon_dev, sc);
if (octeon_dev->subsystem_id ==
OCTEON_CN2350_25GB_SUBSYS_ID ||
octeon_dev->subsystem_id ==
OCTEON_CN2360_25GB_SUBSYS_ID) {
liquidio_get_speed(lio);
if (octeon_dev->speed_setting == 0) {
octeon_dev->speed_setting = 25;
octeon_dev->no_speed_setting = 1;
}
} else {
octeon_dev->no_speed_setting = 1;
octeon_dev->speed_setting = 10;
}
octeon_dev->speed_boot = octeon_dev->speed_setting;
}
devlink = devlink_alloc(&liquidio_devlink_ops,

5
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c
View file

@ -411,6 +411,9 @@ liquidio_vf_probe(struct pci_dev *pdev,
/* set linux specific device pointer */
oct_dev->pci_dev = pdev;
oct_dev->subsystem_id = pdev->subsystem_vendor |
(pdev->subsystem_device << 16);
if (octeon_device_init(oct_dev)) {
liquidio_vf_remove(pdev);
return -ENOMEM;
@ -2199,6 +2202,8 @@ static int setup_nic_devices(struct octeon_device *octeon_dev)
"NIC ifidx:%d Setup successful\n", i);
octeon_free_soft_command(octeon_dev, sc);
octeon_dev->no_speed_setting = 1;
}
return 0;

4
drivers/net/ethernet/cavium/liquidio/liquidio_common.h
View file

@ -93,6 +93,7 @@ enum octeon_tag_type {
#define OPCODE_NIC_VF_REP_PKT 0x15
#define OPCODE_NIC_VF_REP_CMD 0x16
#define OPCODE_NIC_UBOOT_CTL 0x17
#define CORE_DRV_TEST_SCATTER_OP 0xFFF5
@ -249,6 +250,9 @@ static inline void add_sg_size(struct octeon_sg_entry *sg_entry,
#define OCTNET_CMD_VLAN_FILTER_ENABLE 0x1
#define OCTNET_CMD_VLAN_FILTER_DISABLE 0x0
#define SEAPI_CMD_SPEED_SET 0x2
#define SEAPI_CMD_SPEED_GET 0x3
#define LIO_CMD_WAIT_TM 100
/* RX(packets coming from wire) Checksum verification flags */

14
drivers/net/ethernet/cavium/liquidio/octeon_device.h
View file

@ -43,6 +43,13 @@
#define OCTEON_CN23XX_REV_1_1 0x01
#define OCTEON_CN23XX_REV_2_0 0x80
/**SubsystemId for the chips */
#define OCTEON_CN2350_10GB_SUBSYS_ID_1 0X3177d
#define OCTEON_CN2350_10GB_SUBSYS_ID_2 0X4177d
#define OCTEON_CN2360_10GB_SUBSYS_ID 0X5177d
#define OCTEON_CN2350_25GB_SUBSYS_ID 0X7177d
#define OCTEON_CN2360_25GB_SUBSYS_ID 0X6177d
/** Endian-swap modes supported by Octeon. */
enum octeon_pci_swap_mode {
OCTEON_PCI_PASSTHROUGH = 0,
@ -430,6 +437,8 @@ struct octeon_device {
u16 rev_id;
u32 subsystem_id;
u16 pf_num;
u16 vf_num;
@ -584,6 +593,11 @@ struct octeon_device {
struct lio_vf_rep_list vf_rep_list;
struct devlink *devlink;
enum devlink_eswitch_mode eswitch_mode;
/* for 25G NIC speed change */
u8 speed_boot;
u8 speed_setting;
u8 no_speed_setting;
};
#define OCT_DRV_ONLINE 1

15
drivers/net/ethernet/cavium/liquidio/octeon_network.h
View file

@ -81,6 +81,18 @@ struct oct_nic_stats_ctrl {
struct net_device *netdev;
};
struct oct_nic_seapi_resp {
u64 rh;
u32 speed;
u64 status;
};
struct liquidio_nic_seapi_ctl_context {
int octeon_id;
u32 status;
struct completion complete;
};
/** LiquidIO per-interface network private data */
struct lio {
/** State of the interface. Rx/Tx happens only in the RUNNING state. */
@ -230,6 +242,9 @@ void lio_delete_glists(struct lio *lio);
int lio_setup_glists(struct octeon_device *oct, struct lio *lio, int num_qs);
int liquidio_get_speed(struct lio *lio);
int liquidio_set_speed(struct lio *lio, int speed);
/**
* \brief Net device change_mtu
* @param netdev network device