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