forked from Minki/linux
508 lines
13 KiB
C
508 lines
13 KiB
C
/**
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* Copyright 2013 Cisco Systems, Inc. All rights reserved.
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*
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* This program is free software; you may redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#include <linux/netdevice.h>
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#include <linux/ethtool.h>
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#include "enic_res.h"
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#include "enic.h"
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#include "enic_dev.h"
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#include "enic_clsf.h"
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#include "vnic_rss.h"
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#include "vnic_stats.h"
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struct enic_stat {
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char name[ETH_GSTRING_LEN];
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unsigned int index;
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};
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#define ENIC_TX_STAT(stat) { \
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.name = #stat, \
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.index = offsetof(struct vnic_tx_stats, stat) / sizeof(u64) \
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}
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#define ENIC_RX_STAT(stat) { \
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.name = #stat, \
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.index = offsetof(struct vnic_rx_stats, stat) / sizeof(u64) \
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}
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#define ENIC_GEN_STAT(stat) { \
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.name = #stat, \
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.index = offsetof(struct vnic_gen_stats, stat) / sizeof(u64)\
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}
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static const struct enic_stat enic_tx_stats[] = {
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ENIC_TX_STAT(tx_frames_ok),
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ENIC_TX_STAT(tx_unicast_frames_ok),
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ENIC_TX_STAT(tx_multicast_frames_ok),
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ENIC_TX_STAT(tx_broadcast_frames_ok),
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ENIC_TX_STAT(tx_bytes_ok),
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ENIC_TX_STAT(tx_unicast_bytes_ok),
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ENIC_TX_STAT(tx_multicast_bytes_ok),
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ENIC_TX_STAT(tx_broadcast_bytes_ok),
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ENIC_TX_STAT(tx_drops),
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ENIC_TX_STAT(tx_errors),
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ENIC_TX_STAT(tx_tso),
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};
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static const struct enic_stat enic_rx_stats[] = {
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ENIC_RX_STAT(rx_frames_ok),
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ENIC_RX_STAT(rx_frames_total),
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ENIC_RX_STAT(rx_unicast_frames_ok),
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ENIC_RX_STAT(rx_multicast_frames_ok),
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ENIC_RX_STAT(rx_broadcast_frames_ok),
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ENIC_RX_STAT(rx_bytes_ok),
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ENIC_RX_STAT(rx_unicast_bytes_ok),
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ENIC_RX_STAT(rx_multicast_bytes_ok),
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ENIC_RX_STAT(rx_broadcast_bytes_ok),
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ENIC_RX_STAT(rx_drop),
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ENIC_RX_STAT(rx_no_bufs),
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ENIC_RX_STAT(rx_errors),
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ENIC_RX_STAT(rx_rss),
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ENIC_RX_STAT(rx_crc_errors),
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ENIC_RX_STAT(rx_frames_64),
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ENIC_RX_STAT(rx_frames_127),
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ENIC_RX_STAT(rx_frames_255),
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ENIC_RX_STAT(rx_frames_511),
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ENIC_RX_STAT(rx_frames_1023),
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ENIC_RX_STAT(rx_frames_1518),
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ENIC_RX_STAT(rx_frames_to_max),
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};
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static const struct enic_stat enic_gen_stats[] = {
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ENIC_GEN_STAT(dma_map_error),
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};
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static const unsigned int enic_n_tx_stats = ARRAY_SIZE(enic_tx_stats);
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static const unsigned int enic_n_rx_stats = ARRAY_SIZE(enic_rx_stats);
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static const unsigned int enic_n_gen_stats = ARRAY_SIZE(enic_gen_stats);
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static void enic_intr_coal_set_rx(struct enic *enic, u32 timer)
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{
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int i;
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int intr;
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for (i = 0; i < enic->rq_count; i++) {
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intr = enic_msix_rq_intr(enic, i);
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vnic_intr_coalescing_timer_set(&enic->intr[intr], timer);
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}
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}
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static int enic_get_settings(struct net_device *netdev,
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struct ethtool_cmd *ecmd)
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{
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struct enic *enic = netdev_priv(netdev);
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ecmd->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
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ecmd->advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_FIBRE);
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ecmd->port = PORT_FIBRE;
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ecmd->transceiver = XCVR_EXTERNAL;
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if (netif_carrier_ok(netdev)) {
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ethtool_cmd_speed_set(ecmd, vnic_dev_port_speed(enic->vdev));
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ecmd->duplex = DUPLEX_FULL;
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} else {
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ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
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ecmd->duplex = DUPLEX_UNKNOWN;
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}
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ecmd->autoneg = AUTONEG_DISABLE;
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return 0;
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}
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static void enic_get_drvinfo(struct net_device *netdev,
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struct ethtool_drvinfo *drvinfo)
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{
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struct enic *enic = netdev_priv(netdev);
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struct vnic_devcmd_fw_info *fw_info;
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int err;
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err = enic_dev_fw_info(enic, &fw_info);
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/* return only when pci_zalloc_consistent fails in vnic_dev_fw_info
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* For other failures, like devcmd failure, we return previously
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* recorded info.
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*/
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if (err == -ENOMEM)
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return;
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strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
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strlcpy(drvinfo->version, DRV_VERSION, sizeof(drvinfo->version));
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strlcpy(drvinfo->fw_version, fw_info->fw_version,
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sizeof(drvinfo->fw_version));
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strlcpy(drvinfo->bus_info, pci_name(enic->pdev),
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sizeof(drvinfo->bus_info));
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}
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static void enic_get_strings(struct net_device *netdev, u32 stringset,
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u8 *data)
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{
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unsigned int i;
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switch (stringset) {
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case ETH_SS_STATS:
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for (i = 0; i < enic_n_tx_stats; i++) {
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memcpy(data, enic_tx_stats[i].name, ETH_GSTRING_LEN);
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data += ETH_GSTRING_LEN;
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}
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for (i = 0; i < enic_n_rx_stats; i++) {
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memcpy(data, enic_rx_stats[i].name, ETH_GSTRING_LEN);
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data += ETH_GSTRING_LEN;
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}
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for (i = 0; i < enic_n_gen_stats; i++) {
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memcpy(data, enic_gen_stats[i].name, ETH_GSTRING_LEN);
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data += 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 int enic_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 enic_n_tx_stats + enic_n_rx_stats + enic_n_gen_stats;
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default:
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return -EOPNOTSUPP;
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}
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}
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static void enic_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 enic *enic = netdev_priv(netdev);
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struct vnic_stats *vstats;
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unsigned int i;
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int err;
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err = enic_dev_stats_dump(enic, &vstats);
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/* return only when pci_zalloc_consistent fails in vnic_dev_stats_dump
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* For other failures, like devcmd failure, we return previously
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* recorded stats.
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*/
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if (err == -ENOMEM)
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return;
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for (i = 0; i < enic_n_tx_stats; i++)
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*(data++) = ((u64 *)&vstats->tx)[enic_tx_stats[i].index];
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for (i = 0; i < enic_n_rx_stats; i++)
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*(data++) = ((u64 *)&vstats->rx)[enic_rx_stats[i].index];
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for (i = 0; i < enic_n_gen_stats; i++)
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*(data++) = ((u64 *)&enic->gen_stats)[enic_gen_stats[i].index];
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}
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static u32 enic_get_msglevel(struct net_device *netdev)
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{
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struct enic *enic = netdev_priv(netdev);
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return enic->msg_enable;
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}
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static void enic_set_msglevel(struct net_device *netdev, u32 value)
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{
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struct enic *enic = netdev_priv(netdev);
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enic->msg_enable = value;
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}
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static int enic_get_coalesce(struct net_device *netdev,
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struct ethtool_coalesce *ecmd)
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{
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struct enic *enic = netdev_priv(netdev);
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struct enic_rx_coal *rxcoal = &enic->rx_coalesce_setting;
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ecmd->tx_coalesce_usecs = enic->tx_coalesce_usecs;
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ecmd->rx_coalesce_usecs = enic->rx_coalesce_usecs;
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if (rxcoal->use_adaptive_rx_coalesce)
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ecmd->use_adaptive_rx_coalesce = 1;
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ecmd->rx_coalesce_usecs_low = rxcoal->small_pkt_range_start;
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ecmd->rx_coalesce_usecs_high = rxcoal->range_end;
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return 0;
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}
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static int enic_set_coalesce(struct net_device *netdev,
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struct ethtool_coalesce *ecmd)
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{
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struct enic *enic = netdev_priv(netdev);
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u32 tx_coalesce_usecs;
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u32 rx_coalesce_usecs;
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u32 rx_coalesce_usecs_low;
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u32 rx_coalesce_usecs_high;
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u32 coalesce_usecs_max;
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unsigned int i, intr;
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struct enic_rx_coal *rxcoal = &enic->rx_coalesce_setting;
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coalesce_usecs_max = vnic_dev_get_intr_coal_timer_max(enic->vdev);
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tx_coalesce_usecs = min_t(u32, ecmd->tx_coalesce_usecs,
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coalesce_usecs_max);
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rx_coalesce_usecs = min_t(u32, ecmd->rx_coalesce_usecs,
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coalesce_usecs_max);
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rx_coalesce_usecs_low = min_t(u32, ecmd->rx_coalesce_usecs_low,
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coalesce_usecs_max);
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rx_coalesce_usecs_high = min_t(u32, ecmd->rx_coalesce_usecs_high,
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coalesce_usecs_max);
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switch (vnic_dev_get_intr_mode(enic->vdev)) {
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case VNIC_DEV_INTR_MODE_INTX:
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if (tx_coalesce_usecs != rx_coalesce_usecs)
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return -EINVAL;
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if (ecmd->use_adaptive_rx_coalesce ||
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ecmd->rx_coalesce_usecs_low ||
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ecmd->rx_coalesce_usecs_high)
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return -EINVAL;
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intr = enic_legacy_io_intr();
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vnic_intr_coalescing_timer_set(&enic->intr[intr],
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tx_coalesce_usecs);
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break;
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case VNIC_DEV_INTR_MODE_MSI:
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if (tx_coalesce_usecs != rx_coalesce_usecs)
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return -EINVAL;
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if (ecmd->use_adaptive_rx_coalesce ||
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ecmd->rx_coalesce_usecs_low ||
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ecmd->rx_coalesce_usecs_high)
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return -EINVAL;
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vnic_intr_coalescing_timer_set(&enic->intr[0],
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tx_coalesce_usecs);
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break;
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case VNIC_DEV_INTR_MODE_MSIX:
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if (ecmd->rx_coalesce_usecs_high &&
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(rx_coalesce_usecs_high <
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rx_coalesce_usecs_low + ENIC_AIC_LARGE_PKT_DIFF))
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return -EINVAL;
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for (i = 0; i < enic->wq_count; i++) {
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intr = enic_msix_wq_intr(enic, i);
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vnic_intr_coalescing_timer_set(&enic->intr[intr],
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tx_coalesce_usecs);
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}
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rxcoal->use_adaptive_rx_coalesce =
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!!ecmd->use_adaptive_rx_coalesce;
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if (!rxcoal->use_adaptive_rx_coalesce)
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enic_intr_coal_set_rx(enic, rx_coalesce_usecs);
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if (ecmd->rx_coalesce_usecs_high) {
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rxcoal->range_end = rx_coalesce_usecs_high;
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rxcoal->small_pkt_range_start = rx_coalesce_usecs_low;
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rxcoal->large_pkt_range_start = rx_coalesce_usecs_low +
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ENIC_AIC_LARGE_PKT_DIFF;
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}
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break;
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default:
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break;
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}
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enic->tx_coalesce_usecs = tx_coalesce_usecs;
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enic->rx_coalesce_usecs = rx_coalesce_usecs;
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return 0;
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}
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static int enic_grxclsrlall(struct enic *enic, struct ethtool_rxnfc *cmd,
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u32 *rule_locs)
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{
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int j, ret = 0, cnt = 0;
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cmd->data = enic->rfs_h.max - enic->rfs_h.free;
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for (j = 0; j < (1 << ENIC_RFS_FLW_BITSHIFT); j++) {
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struct hlist_head *hhead;
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struct hlist_node *tmp;
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struct enic_rfs_fltr_node *n;
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hhead = &enic->rfs_h.ht_head[j];
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hlist_for_each_entry_safe(n, tmp, hhead, node) {
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if (cnt == cmd->rule_cnt)
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return -EMSGSIZE;
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rule_locs[cnt] = n->fltr_id;
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cnt++;
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}
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}
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cmd->rule_cnt = cnt;
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return ret;
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}
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static int enic_grxclsrule(struct enic *enic, struct ethtool_rxnfc *cmd)
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{
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struct ethtool_rx_flow_spec *fsp =
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(struct ethtool_rx_flow_spec *)&cmd->fs;
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struct enic_rfs_fltr_node *n;
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n = htbl_fltr_search(enic, (u16)fsp->location);
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if (!n)
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return -EINVAL;
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switch (n->keys.basic.ip_proto) {
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case IPPROTO_TCP:
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fsp->flow_type = TCP_V4_FLOW;
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break;
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case IPPROTO_UDP:
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fsp->flow_type = UDP_V4_FLOW;
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break;
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default:
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return -EINVAL;
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break;
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}
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fsp->h_u.tcp_ip4_spec.ip4src = flow_get_u32_src(&n->keys);
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fsp->m_u.tcp_ip4_spec.ip4src = (__u32)~0;
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fsp->h_u.tcp_ip4_spec.ip4dst = flow_get_u32_dst(&n->keys);
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fsp->m_u.tcp_ip4_spec.ip4dst = (__u32)~0;
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fsp->h_u.tcp_ip4_spec.psrc = n->keys.ports.src;
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fsp->m_u.tcp_ip4_spec.psrc = (__u16)~0;
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fsp->h_u.tcp_ip4_spec.pdst = n->keys.ports.dst;
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fsp->m_u.tcp_ip4_spec.pdst = (__u16)~0;
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fsp->ring_cookie = n->rq_id;
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return 0;
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}
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static int enic_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
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u32 *rule_locs)
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{
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struct enic *enic = netdev_priv(dev);
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int ret = 0;
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switch (cmd->cmd) {
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case ETHTOOL_GRXRINGS:
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cmd->data = enic->rq_count;
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break;
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case ETHTOOL_GRXCLSRLCNT:
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spin_lock_bh(&enic->rfs_h.lock);
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cmd->rule_cnt = enic->rfs_h.max - enic->rfs_h.free;
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cmd->data = enic->rfs_h.max;
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spin_unlock_bh(&enic->rfs_h.lock);
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break;
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case ETHTOOL_GRXCLSRLALL:
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spin_lock_bh(&enic->rfs_h.lock);
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ret = enic_grxclsrlall(enic, cmd, rule_locs);
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spin_unlock_bh(&enic->rfs_h.lock);
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break;
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case ETHTOOL_GRXCLSRULE:
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spin_lock_bh(&enic->rfs_h.lock);
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ret = enic_grxclsrule(enic, cmd);
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spin_unlock_bh(&enic->rfs_h.lock);
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break;
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default:
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ret = -EOPNOTSUPP;
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break;
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}
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return ret;
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}
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static int enic_get_tunable(struct net_device *dev,
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const struct ethtool_tunable *tuna, void *data)
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{
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struct enic *enic = netdev_priv(dev);
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int ret = 0;
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switch (tuna->id) {
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case ETHTOOL_RX_COPYBREAK:
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*(u32 *)data = enic->rx_copybreak;
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break;
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default:
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ret = -EINVAL;
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break;
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}
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return ret;
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}
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static int enic_set_tunable(struct net_device *dev,
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const struct ethtool_tunable *tuna,
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const void *data)
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{
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struct enic *enic = netdev_priv(dev);
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int ret = 0;
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switch (tuna->id) {
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case ETHTOOL_RX_COPYBREAK:
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enic->rx_copybreak = *(u32 *)data;
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break;
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default:
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ret = -EINVAL;
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break;
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}
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return ret;
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}
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static u32 enic_get_rxfh_key_size(struct net_device *netdev)
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{
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return ENIC_RSS_LEN;
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}
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static int enic_get_rxfh(struct net_device *netdev, u32 *indir, u8 *hkey,
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u8 *hfunc)
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{
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struct enic *enic = netdev_priv(netdev);
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if (hkey)
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memcpy(hkey, enic->rss_key, ENIC_RSS_LEN);
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if (hfunc)
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*hfunc = ETH_RSS_HASH_TOP;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int enic_set_rxfh(struct net_device *netdev, const u32 *indir,
|
|
const u8 *hkey, const u8 hfunc)
|
|
{
|
|
struct enic *enic = netdev_priv(netdev);
|
|
|
|
if ((hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) ||
|
|
indir)
|
|
return -EINVAL;
|
|
|
|
if (hkey)
|
|
memcpy(enic->rss_key, hkey, ENIC_RSS_LEN);
|
|
|
|
return __enic_set_rsskey(enic);
|
|
}
|
|
|
|
static const struct ethtool_ops enic_ethtool_ops = {
|
|
.get_settings = enic_get_settings,
|
|
.get_drvinfo = enic_get_drvinfo,
|
|
.get_msglevel = enic_get_msglevel,
|
|
.set_msglevel = enic_set_msglevel,
|
|
.get_link = ethtool_op_get_link,
|
|
.get_strings = enic_get_strings,
|
|
.get_sset_count = enic_get_sset_count,
|
|
.get_ethtool_stats = enic_get_ethtool_stats,
|
|
.get_coalesce = enic_get_coalesce,
|
|
.set_coalesce = enic_set_coalesce,
|
|
.get_rxnfc = enic_get_rxnfc,
|
|
.get_tunable = enic_get_tunable,
|
|
.set_tunable = enic_set_tunable,
|
|
.get_rxfh_key_size = enic_get_rxfh_key_size,
|
|
.get_rxfh = enic_get_rxfh,
|
|
.set_rxfh = enic_set_rxfh,
|
|
};
|
|
|
|
void enic_set_ethtool_ops(struct net_device *netdev)
|
|
{
|
|
netdev->ethtool_ops = &enic_ethtool_ops;
|
|
}
|