forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
236 lines
6.4 KiB
236 lines
6.4 KiB
/* |
|
* Copyright (c) 2007 Mellanox Technologies. All rights reserved. |
|
* |
|
* This software is available to you under a choice of one of two |
|
* licenses. You may choose to be licensed under the terms of the GNU |
|
* General Public License (GPL) Version 2, available from the file |
|
* COPYING in the main directory of this source tree, or the |
|
* OpenIB.org BSD license below: |
|
* |
|
* Redistribution and use in source and binary forms, with or |
|
* without modification, are permitted provided that the following |
|
* conditions are met: |
|
* |
|
* - Redistributions of source code must retain the above |
|
* copyright notice, this list of conditions and the following |
|
* disclaimer. |
|
* |
|
* - Redistributions in binary form must reproduce the above |
|
* copyright notice, this list of conditions and the following |
|
* disclaimer in the documentation and/or other materials |
|
* provided with the distribution. |
|
* |
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
|
* SOFTWARE. |
|
*/ |
|
|
|
#include <linux/kernel.h> |
|
#include <linux/ethtool.h> |
|
#include <linux/netdevice.h> |
|
|
|
#include "ipoib.h" |
|
|
|
struct ipoib_stats { |
|
char stat_string[ETH_GSTRING_LEN]; |
|
int stat_offset; |
|
}; |
|
|
|
#define IPOIB_NETDEV_STAT(m) { \ |
|
.stat_string = #m, \ |
|
.stat_offset = offsetof(struct rtnl_link_stats64, m) } |
|
|
|
static const struct ipoib_stats ipoib_gstrings_stats[] = { |
|
IPOIB_NETDEV_STAT(rx_packets), |
|
IPOIB_NETDEV_STAT(tx_packets), |
|
IPOIB_NETDEV_STAT(rx_bytes), |
|
IPOIB_NETDEV_STAT(tx_bytes), |
|
IPOIB_NETDEV_STAT(tx_errors), |
|
IPOIB_NETDEV_STAT(rx_dropped), |
|
IPOIB_NETDEV_STAT(tx_dropped), |
|
IPOIB_NETDEV_STAT(multicast), |
|
}; |
|
|
|
#define IPOIB_GLOBAL_STATS_LEN ARRAY_SIZE(ipoib_gstrings_stats) |
|
|
|
static void ipoib_get_drvinfo(struct net_device *netdev, |
|
struct ethtool_drvinfo *drvinfo) |
|
{ |
|
struct ipoib_dev_priv *priv = ipoib_priv(netdev); |
|
|
|
ib_get_device_fw_str(priv->ca, drvinfo->fw_version); |
|
|
|
strlcpy(drvinfo->bus_info, dev_name(priv->ca->dev.parent), |
|
sizeof(drvinfo->bus_info)); |
|
|
|
strlcpy(drvinfo->driver, "ib_ipoib", sizeof(drvinfo->driver)); |
|
} |
|
|
|
static int ipoib_get_coalesce(struct net_device *dev, |
|
struct ethtool_coalesce *coal, |
|
struct kernel_ethtool_coalesce *kernel_coal, |
|
struct netlink_ext_ack *extack) |
|
{ |
|
struct ipoib_dev_priv *priv = ipoib_priv(dev); |
|
|
|
coal->rx_coalesce_usecs = priv->ethtool.coalesce_usecs; |
|
coal->rx_max_coalesced_frames = priv->ethtool.max_coalesced_frames; |
|
|
|
return 0; |
|
} |
|
|
|
static int ipoib_set_coalesce(struct net_device *dev, |
|
struct ethtool_coalesce *coal, |
|
struct kernel_ethtool_coalesce *kernel_coal, |
|
struct netlink_ext_ack *extack) |
|
{ |
|
struct ipoib_dev_priv *priv = ipoib_priv(dev); |
|
int ret; |
|
|
|
/* |
|
* These values are saved in the private data and returned |
|
* when ipoib_get_coalesce() is called |
|
*/ |
|
if (coal->rx_coalesce_usecs > 0xffff || |
|
coal->rx_max_coalesced_frames > 0xffff) |
|
return -EINVAL; |
|
|
|
ret = rdma_set_cq_moderation(priv->recv_cq, |
|
coal->rx_max_coalesced_frames, |
|
coal->rx_coalesce_usecs); |
|
if (ret && ret != -EOPNOTSUPP) { |
|
ipoib_warn(priv, "failed modifying CQ (%d)\n", ret); |
|
return ret; |
|
} |
|
|
|
priv->ethtool.coalesce_usecs = coal->rx_coalesce_usecs; |
|
priv->ethtool.max_coalesced_frames = coal->rx_max_coalesced_frames; |
|
|
|
return 0; |
|
} |
|
static void ipoib_get_ethtool_stats(struct net_device *dev, |
|
struct ethtool_stats __always_unused *stats, |
|
u64 *data) |
|
{ |
|
int i; |
|
struct net_device_stats *net_stats = &dev->stats; |
|
u8 *p = (u8 *)net_stats; |
|
|
|
for (i = 0; i < IPOIB_GLOBAL_STATS_LEN; i++) |
|
data[i] = *(u64 *)(p + ipoib_gstrings_stats[i].stat_offset); |
|
|
|
} |
|
static void ipoib_get_strings(struct net_device __always_unused *dev, |
|
u32 stringset, u8 *data) |
|
{ |
|
u8 *p = data; |
|
int i; |
|
|
|
switch (stringset) { |
|
case ETH_SS_STATS: |
|
for (i = 0; i < IPOIB_GLOBAL_STATS_LEN; i++) { |
|
memcpy(p, ipoib_gstrings_stats[i].stat_string, |
|
ETH_GSTRING_LEN); |
|
p += ETH_GSTRING_LEN; |
|
} |
|
break; |
|
default: |
|
break; |
|
} |
|
} |
|
static int ipoib_get_sset_count(struct net_device __always_unused *dev, |
|
int sset) |
|
{ |
|
switch (sset) { |
|
case ETH_SS_STATS: |
|
return IPOIB_GLOBAL_STATS_LEN; |
|
default: |
|
break; |
|
} |
|
return -EOPNOTSUPP; |
|
} |
|
|
|
/* Return lane speed in unit of 1e6 bit/sec */ |
|
static inline int ib_speed_enum_to_int(int speed) |
|
{ |
|
switch (speed) { |
|
case IB_SPEED_SDR: |
|
return SPEED_2500; |
|
case IB_SPEED_DDR: |
|
return SPEED_5000; |
|
case IB_SPEED_QDR: |
|
case IB_SPEED_FDR10: |
|
return SPEED_10000; |
|
case IB_SPEED_FDR: |
|
return SPEED_14000; |
|
case IB_SPEED_EDR: |
|
return SPEED_25000; |
|
case IB_SPEED_HDR: |
|
return SPEED_50000; |
|
case IB_SPEED_NDR: |
|
return SPEED_100000; |
|
} |
|
|
|
return SPEED_UNKNOWN; |
|
} |
|
|
|
static int ipoib_get_link_ksettings(struct net_device *netdev, |
|
struct ethtool_link_ksettings *cmd) |
|
{ |
|
struct ipoib_dev_priv *priv = ipoib_priv(netdev); |
|
struct ib_port_attr attr; |
|
int ret, speed, width; |
|
|
|
if (!netif_carrier_ok(netdev)) { |
|
cmd->base.speed = SPEED_UNKNOWN; |
|
cmd->base.duplex = DUPLEX_UNKNOWN; |
|
return 0; |
|
} |
|
|
|
ret = ib_query_port(priv->ca, priv->port, &attr); |
|
if (ret < 0) |
|
return -EINVAL; |
|
|
|
speed = ib_speed_enum_to_int(attr.active_speed); |
|
width = ib_width_enum_to_int(attr.active_width); |
|
|
|
if (speed < 0 || width < 0) |
|
return -EINVAL; |
|
|
|
/* Except the following are set, the other members of |
|
* the struct ethtool_link_settings are initialized to |
|
* zero in the function __ethtool_get_link_ksettings. |
|
*/ |
|
cmd->base.speed = speed * width; |
|
cmd->base.duplex = DUPLEX_FULL; |
|
|
|
cmd->base.phy_address = 0xFF; |
|
|
|
cmd->base.autoneg = AUTONEG_ENABLE; |
|
cmd->base.port = PORT_OTHER; |
|
|
|
return 0; |
|
} |
|
|
|
static const struct ethtool_ops ipoib_ethtool_ops = { |
|
.supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS | |
|
ETHTOOL_COALESCE_RX_MAX_FRAMES, |
|
.get_link_ksettings = ipoib_get_link_ksettings, |
|
.get_drvinfo = ipoib_get_drvinfo, |
|
.get_coalesce = ipoib_get_coalesce, |
|
.set_coalesce = ipoib_set_coalesce, |
|
.get_strings = ipoib_get_strings, |
|
.get_ethtool_stats = ipoib_get_ethtool_stats, |
|
.get_sset_count = ipoib_get_sset_count, |
|
.get_link = ethtool_op_get_link, |
|
}; |
|
|
|
void ipoib_set_ethtool_ops(struct net_device *dev) |
|
{ |
|
dev->ethtool_ops = &ipoib_ethtool_ops; |
|
}
|
|
|