/**************************************************************************
*
* Copyright (C) 2000-2008 Alacritech, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY ALACRITECH, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ALACRITECH, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation
* are those of the authors and should not be interpreted as representing
* official policies, either expressed or implied, of Alacritech, Inc.
*
**************************************************************************/
/*
* FILENAME: sxg_ethtool.c
*
* The ethtool support for SXG driver for Alacritech's 10Gbe products.
*
* NOTE: This is the standard, non-accelerated version of Alacritech's
* IS-NIC driver.
*/
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/skbuff.h>
#include <linux/pci.h>
#include "sxg_os.h"
#include "sxghw.h"
#include "sxghif.h"
#include "sxg.h"
struct sxg_nic_stats {
char stat_string[ETH_GSTRING_LEN];
int sizeof_stat;
int stat_offset;
};
#define SXG_NIC_STATS(m) sizeof(((struct adapter_t *)0)->m), \
offsetof(struct adapter_t, m)
#define USER_VIEWABLE_EEPROM_SIZE 28
static struct sxg_nic_stats sxg_nic_gstrings_stats[] = {
{"xmit_ring_0_full", SXG_NIC_STATS(Stats.XmtZeroFull)},
/* May be will need in future */
/* {"dumb_xmit_broadcast_packets", SXG_NIC_STATS(Stats.DumbXmtBcastPkts)},
{"dumb_xmit_broadcast_bytes", SXG_NIC_STATS(Stats.DumbXmtBcastBytes)},
{"dumb_xmit_unicast_packets", SXG_NIC_STATS(Stats.DumbXmtUcastPkts)},
{"dumb_xmit_unicast_bytes", SXG_NIC_STATS(Stats.DumbXmtUcastBytes)},
*/
{"xmit_queue_length", SXG_NIC_STATS(Stats.XmtQLen)},
{"memory_allocation_failure", SXG_NIC_STATS(Stats.NoMem)},
{"Interrupts", SXG_NIC_STATS(Stats.NumInts)},
{"false_interrupts", SXG_NIC_STATS(Stats.FalseInts)},
{"processed_data_queue_full", SXG_NIC_STATS(Stats.PdqFull)},
{"event_ring_full", SXG_NIC_STATS(Stats.EventRingFull)},
{"transport_checksum_error", SXG_NIC_STATS(Stats.TransportCsum)},
{"transport_underflow_error", SXG_NIC_STATS(Stats.TransportUflow)},
{"transport_header_length_error", SXG_NIC_STATS(Stats.TransportHdrLen)},
{"network_checksum_error", SXG_NIC_STATS(Stats.NetworkCsum)},
{"network_underflow_error", SXG_NIC_STATS(Stats.NetworkUflow)},
{"network_header_length_error", SXG_NIC_STATS(Stats.NetworkHdrLen)},
{"receive_parity_error", SXG_NIC_STATS(Stats.Parity)},
{"link_parity_error", SXG_NIC_STATS(Stats.LinkParity)},
{"link/data early_error", SXG_NIC_STATS(Stats.LinkEarly)},
{"buffer_overflow_error", SXG_NIC_STATS(Stats.LinkBufOflow)},
{"link_code_error", SXG_NIC_STATS(Stats.LinkCode)},
{"dribble nibble", SXG_NIC_STATS(Stats.LinkDribble)},
{"CRC_error", SXG_NIC_STATS(Stats.LinkCrc)},
{"link_overflow_error", SXG_NIC_STATS(Stats.LinkOflow)},
{"link_underflow_error", SXG_NIC_STATS(Stats.LinkUflow)},
/* May be need in future */
/* {"dumb_rcv_broadcast_packets", SXG_NIC_STATS(Stats.DumbRcvBcastPkts)},
{"dumb_rcv_broadcast_bytes", SXG_NIC_STATS(Stats.DumbRcvBcastBytes)},
*/ {"dumb_rcv_multicast_packets", SXG_NIC_STATS(Stats.DumbRcvMcastPkts)},
{"dumb_rcv_multicast_bytes", SXG_NIC_STATS(Stats.DumbRcvMcastBytes)},
/* {"dumb_rcv_unicast_packets", SXG_NIC_STATS(Stats.DumbRcvUcastPkts)},
{"dumb_rcv_unicast_bytes", SXG_NIC_STATS(Stats.DumbRcvUcastBytes)},
*/
{"no_sgl_buffer", SXG_NIC_STATS(Stats.NoSglBuf)},
};
#define SXG_NIC_STATS_LEN ARRAY_SIZE(sxg_nic_gstrings_stats)
static inline void sxg_reg32_write(void __iomem *reg, u32 value, bool flush)
{
writel(value, reg);
if (flush)
mb();
}
static inline void sxg_reg64_write(struct adapter_t *adapter, void __iomem *reg,
u64 value, u32 cpu)
{
u32 value_high = (u32) (value >> 32);
u32 value_low = (u32) (value & 0x00000000FFFFFFFF);
unsigned long flags;
spin_lock_irqsave(&adapter->Bit64RegLock, flags);
writel(value_high, (void __iomem *)(&adapter->UcodeRegs[cpu].Upper));
writel(value_low, reg);
spin_unlock_irqrestore(&adapter->Bit64RegLock, flags);
}
static void
sxg_nic_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
{
struct adapter_t *adapter = netdev_priv(dev);
strncpy(drvinfo->driver, sxg_driver_name, 32);
strncpy(drvinfo->version, SXG_DRV_VERSION, 32);
// strncpy(drvinfo->fw_version, SAHARA_UCODE_VERS_STRING, 32);
strncpy(drvinfo->bus_info, pci_name(adapter->pcidev), 32);
/* TODO : Read the major and minor number of firmware. Is this
* from the FLASH/EEPROM or download file ?
*/
/* LINSYS : Check if this is correct or if not find the right value
* Also check what is the right EEPROM length : EEPROM_SIZE_XFMR or EEPROM_SIZE_NO_XFMR
*/
}
static int sxg_nic_set_settings(struct net_device *netdev,
struct ethtool_cmd *ecmd)
{
/* No settings are applicable as we support only 10Gb/FIBRE_media */
return -EOPNOTSUPP;
}
static void
sxg_nic_get_strings(struct net_device *netdev, u32 stringset, u8 * data)
{
int index;
switch(stringset) {
case ETH_SS_TEST:
break;
case ETH_SS_STATS:
for (index = 0; index < SXG_NIC_STATS_LEN; index++) {
memcpy(data + index * ETH_GSTRING_LEN,
sxg_nic_gstrings_stats[index].stat_string,
ETH_GSTRING_LEN);
}
break;
}
}
static void
sxg_nic_get_ethtool_stats(struct net_device *netdev,
struct ethtool_stats *stats, u64 * data)
{
struct adapter_t *adapter = netdev_priv(netdev);
int index;
for (index = 0; index < SXG_NIC_STATS_LEN; index++) {
char *p = (char *)adapter +
sxg_nic_gstrings_stats[index].stat_offset;
data[index] = (sxg_nic_gstrings_stats[index].sizeof_stat ==
sizeof(u64)) ? *(u64 *) p : *(u32 *) p;
}
}
static int sxg_nic_get_sset_count(struct net_device *netdev, int sset)
{
switch (sset) {
case ETH_SS_STATS:
return SXG_NIC_STATS_LEN;
default:
return -EOPNOTSUPP;
}
}
static int sxg_nic_get_settings(struct net_device *netdev,
struct ethtool_cmd *ecmd)
{
struct adapter_t *adapter = netdev_priv(netdev);
ecmd->supported = SUPPORTED_10000baseT_Full;
ecmd->autoneg = AUTONEG_ENABLE; //VSS check This
ecmd->transceiver = XCVR_EXTERNAL; //VSS check This
/* For Fibre Channel */
ecmd->supported |= SUPPORTED_FIBRE;
ecmd->advertising = (ADVERTISED_10000baseT_Full |
ADVERTISED_FIBRE);
ecmd->port = PORT_FIBRE;
/* Link Speed */
if(adapter->LinkState & SXG_LINK_UP) {
ecmd->speed = SPEED_10000; //adapter->LinkSpeed;
ecmd->duplex = DUPLEX_FULL;
}
return 0;
}
static u32 sxg_nic_get_rx_csum(struct net_device *netdev)
{
struct adapter_t *adapter = netdev_priv(netdev);
return ((adapter->flags & SXG_RCV_IP_CSUM_ENABLED) &&
(adapter->flags & SXG_RCV_TCP_CSUM_ENABLED));
}
static int sxg_nic_set_rx_csum(struct net_device *netdev, u32 data)
{
struct adapter_t *adapter = netdev_priv(netdev);
if (data)
adapter->flags |= SXG_RCV_IP_CSUM_ENABLED;
else
adapter->flags &= ~SXG_RCV_IP_CSUM_ENABLED;
/*
* We dont need to write to the card to do checksums.
* It does it anyways.
*/
return 0;
}
static int sxg_nic_get_regs_len(struct net_device *dev)
{
return (SXG_HWREG_MEMSIZE + SXG_UCODEREG_MEMSIZE);
}
static void sxg_nic_get_regs(struct net_device *netdev,
struct ethtool_regs *regs, void *p)
{
struct adapter_t *adapter = netdev_priv(netdev);
struct sxg_hw_regs *HwRegs = adapter->HwRegs;
struct sxg_ucode_regs *UcodeRegs = adapter->UcodeRegs;
u32 *buff = p;
memset(p, 0, (sizeof(struct sxg_hw_regs)+sizeof(struct sxg_ucode_regs)));
memcpy(buff, HwRegs, sizeof(struct sxg_hw_regs));
memcpy((buff+sizeof(struct sxg_hw_regs)), UcodeRegs, sizeof(struct sxg_ucode_regs));
}
static int sxg_nic_get_eeprom_len(struct net_device *netdev)
{
return (USER_VIEWABLE_EEPROM_SIZE);
}
static int sxg_nic_get_eeprom(struct net_device *netdev,
struct ethtool_eeprom *eeprom, u8 *bytes)
{
struct adapter_t *adapter = netdev_priv(netdev);
struct sw_cfg_data *data;
unsigned long i, status;
dma_addr_t p_addr;
data = pci_alloc_consistent(adapter->pcidev, sizeof(struct sw_cfg_data),
&p_addr);
if(!data) {
/*
* We cant get even this much memory. Raise a hell
* Get out of here
*/
printk(KERN_ERR"%s : Could not allocate memory for reading \
EEPROM\n", __func__);
return -ENOMEM;
}
WRITE_REG(adapter->UcodeRegs[0].ConfigStat, SXG_CFG_TIMEOUT, TRUE);
WRITE_REG64(adapter, adapter->UcodeRegs[0].Config, p_addr, 0);
for(i=0; i<1000; i++) {
READ_REG(adapter->UcodeRegs[0].ConfigStat, status);
if (status != SXG_CFG_TIMEOUT)
break;
mdelay(1); /* Do we really need this */
}
memset(bytes, 0, eeprom->len);
memcpy(bytes, data->MacAddr[0].MacAddr, sizeof(struct sxg_config_mac));
memcpy(bytes+6, data->AtkFru.PartNum, 6);
memcpy(bytes+12, data->AtkFru.Revision, 2);
memcpy(bytes+14, data->AtkFru.Serial, 14);
return 0;
}
struct ethtool_ops sxg_nic_ethtool_ops = {
.get_settings = sxg_nic_get_settings,
.set_settings = sxg_nic_set_settings,
.get_drvinfo = sxg_nic_get_drvinfo,
.get_regs_len = sxg_nic_get_regs_len,
.get_regs = sxg_nic_get_regs,
.get_link = ethtool_op_get_link,
// .get_wol = sxg_nic_get_wol,
.get_eeprom_len = sxg_nic_get_eeprom_len,
.get_eeprom = sxg_nic_get_eeprom,
// .get_pauseparam = sxg_nic_get_pauseparam,
// .set_pauseparam = sxg_nic_set_pauseparam,
.set_tx_csum = ethtool_op_set_tx_csum,
.get_sg = ethtool_op_get_sg,
.set_sg = ethtool_op_set_sg,
// .get_tso = sxg_nic_get_tso,
// .set_tso = sxg_nic_set_tso,
// .self_test = sxg_nic_diag_test,
.get_strings = sxg_nic_get_strings,
.get_ethtool_stats = sxg_nic_get_ethtool_stats,
.get_sset_count = sxg_nic_get_sset_count,
.get_rx_csum = sxg_nic_get_rx_csum,
.set_rx_csum = sxg_nic_set_rx_csum,
// .get_coalesce = sxg_nic_get_intr_coalesce,
// .set_coalesce = sxg_nic_set_intr_coalesce,
};
