diff options
Diffstat (limited to 'drivers/net/ethernet/cisco/enic/enic_ethtool.c')
-rw-r--r-- | drivers/net/ethernet/cisco/enic/enic_ethtool.c | 507 |
1 files changed, 507 insertions, 0 deletions
diff --git a/drivers/net/ethernet/cisco/enic/enic_ethtool.c b/drivers/net/ethernet/cisco/enic/enic_ethtool.c new file mode 100644 index 000000000..68d47b196 --- /dev/null +++ b/drivers/net/ethernet/cisco/enic/enic_ethtool.c @@ -0,0 +1,507 @@ +/** + * Copyright 2013 Cisco Systems, Inc. All rights reserved. + * + * This program is free software; you may redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * 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/netdevice.h> +#include <linux/ethtool.h> + +#include "enic_res.h" +#include "enic.h" +#include "enic_dev.h" +#include "enic_clsf.h" +#include "vnic_rss.h" +#include "vnic_stats.h" + +struct enic_stat { + char name[ETH_GSTRING_LEN]; + unsigned int index; +}; + +#define ENIC_TX_STAT(stat) { \ + .name = #stat, \ + .index = offsetof(struct vnic_tx_stats, stat) / sizeof(u64) \ +} + +#define ENIC_RX_STAT(stat) { \ + .name = #stat, \ + .index = offsetof(struct vnic_rx_stats, stat) / sizeof(u64) \ +} + +#define ENIC_GEN_STAT(stat) { \ + .name = #stat, \ + .index = offsetof(struct vnic_gen_stats, stat) / sizeof(u64)\ +} + +static const struct enic_stat enic_tx_stats[] = { + ENIC_TX_STAT(tx_frames_ok), + ENIC_TX_STAT(tx_unicast_frames_ok), + ENIC_TX_STAT(tx_multicast_frames_ok), + ENIC_TX_STAT(tx_broadcast_frames_ok), + ENIC_TX_STAT(tx_bytes_ok), + ENIC_TX_STAT(tx_unicast_bytes_ok), + ENIC_TX_STAT(tx_multicast_bytes_ok), + ENIC_TX_STAT(tx_broadcast_bytes_ok), + ENIC_TX_STAT(tx_drops), + ENIC_TX_STAT(tx_errors), + ENIC_TX_STAT(tx_tso), +}; + +static const struct enic_stat enic_rx_stats[] = { + ENIC_RX_STAT(rx_frames_ok), + ENIC_RX_STAT(rx_frames_total), + ENIC_RX_STAT(rx_unicast_frames_ok), + ENIC_RX_STAT(rx_multicast_frames_ok), + ENIC_RX_STAT(rx_broadcast_frames_ok), + ENIC_RX_STAT(rx_bytes_ok), + ENIC_RX_STAT(rx_unicast_bytes_ok), + ENIC_RX_STAT(rx_multicast_bytes_ok), + ENIC_RX_STAT(rx_broadcast_bytes_ok), + ENIC_RX_STAT(rx_drop), + ENIC_RX_STAT(rx_no_bufs), + ENIC_RX_STAT(rx_errors), + ENIC_RX_STAT(rx_rss), + ENIC_RX_STAT(rx_crc_errors), + ENIC_RX_STAT(rx_frames_64), + ENIC_RX_STAT(rx_frames_127), + ENIC_RX_STAT(rx_frames_255), + ENIC_RX_STAT(rx_frames_511), + ENIC_RX_STAT(rx_frames_1023), + ENIC_RX_STAT(rx_frames_1518), + ENIC_RX_STAT(rx_frames_to_max), +}; + +static const struct enic_stat enic_gen_stats[] = { + ENIC_GEN_STAT(dma_map_error), +}; + +static const unsigned int enic_n_tx_stats = ARRAY_SIZE(enic_tx_stats); +static const unsigned int enic_n_rx_stats = ARRAY_SIZE(enic_rx_stats); +static const unsigned int enic_n_gen_stats = ARRAY_SIZE(enic_gen_stats); + +static void enic_intr_coal_set_rx(struct enic *enic, u32 timer) +{ + int i; + int intr; + + for (i = 0; i < enic->rq_count; i++) { + intr = enic_msix_rq_intr(enic, i); + vnic_intr_coalescing_timer_set(&enic->intr[intr], timer); + } +} + +static int enic_get_settings(struct net_device *netdev, + struct ethtool_cmd *ecmd) +{ + struct enic *enic = netdev_priv(netdev); + + ecmd->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE); + ecmd->advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_FIBRE); + ecmd->port = PORT_FIBRE; + ecmd->transceiver = XCVR_EXTERNAL; + + if (netif_carrier_ok(netdev)) { + ethtool_cmd_speed_set(ecmd, vnic_dev_port_speed(enic->vdev)); + ecmd->duplex = DUPLEX_FULL; + } else { + ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN); + ecmd->duplex = DUPLEX_UNKNOWN; + } + + ecmd->autoneg = AUTONEG_DISABLE; + + return 0; +} + +static void enic_get_drvinfo(struct net_device *netdev, + struct ethtool_drvinfo *drvinfo) +{ + struct enic *enic = netdev_priv(netdev); + struct vnic_devcmd_fw_info *fw_info; + int err; + + err = enic_dev_fw_info(enic, &fw_info); + /* return only when pci_zalloc_consistent fails in vnic_dev_fw_info + * For other failures, like devcmd failure, we return previously + * recorded info. + */ + if (err == -ENOMEM) + return; + + strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); + strlcpy(drvinfo->version, DRV_VERSION, sizeof(drvinfo->version)); + strlcpy(drvinfo->fw_version, fw_info->fw_version, + sizeof(drvinfo->fw_version)); + strlcpy(drvinfo->bus_info, pci_name(enic->pdev), + sizeof(drvinfo->bus_info)); +} + +static void enic_get_strings(struct net_device *netdev, u32 stringset, + u8 *data) +{ + unsigned int i; + + switch (stringset) { + case ETH_SS_STATS: + for (i = 0; i < enic_n_tx_stats; i++) { + memcpy(data, enic_tx_stats[i].name, ETH_GSTRING_LEN); + data += ETH_GSTRING_LEN; + } + for (i = 0; i < enic_n_rx_stats; i++) { + memcpy(data, enic_rx_stats[i].name, ETH_GSTRING_LEN); + data += ETH_GSTRING_LEN; + } + for (i = 0; i < enic_n_gen_stats; i++) { + memcpy(data, enic_gen_stats[i].name, ETH_GSTRING_LEN); + data += ETH_GSTRING_LEN; + } + break; + } +} + +static int enic_get_sset_count(struct net_device *netdev, int sset) +{ + switch (sset) { + case ETH_SS_STATS: + return enic_n_tx_stats + enic_n_rx_stats + enic_n_gen_stats; + default: + return -EOPNOTSUPP; + } +} + +static void enic_get_ethtool_stats(struct net_device *netdev, + struct ethtool_stats *stats, u64 *data) +{ + struct enic *enic = netdev_priv(netdev); + struct vnic_stats *vstats; + unsigned int i; + int err; + + err = enic_dev_stats_dump(enic, &vstats); + /* return only when pci_zalloc_consistent fails in vnic_dev_stats_dump + * For other failures, like devcmd failure, we return previously + * recorded stats. + */ + if (err == -ENOMEM) + return; + + for (i = 0; i < enic_n_tx_stats; i++) + *(data++) = ((u64 *)&vstats->tx)[enic_tx_stats[i].index]; + for (i = 0; i < enic_n_rx_stats; i++) + *(data++) = ((u64 *)&vstats->rx)[enic_rx_stats[i].index]; + for (i = 0; i < enic_n_gen_stats; i++) + *(data++) = ((u64 *)&enic->gen_stats)[enic_gen_stats[i].index]; +} + +static u32 enic_get_msglevel(struct net_device *netdev) +{ + struct enic *enic = netdev_priv(netdev); + return enic->msg_enable; +} + +static void enic_set_msglevel(struct net_device *netdev, u32 value) +{ + struct enic *enic = netdev_priv(netdev); + enic->msg_enable = value; +} + +static int enic_get_coalesce(struct net_device *netdev, + struct ethtool_coalesce *ecmd) +{ + struct enic *enic = netdev_priv(netdev); + struct enic_rx_coal *rxcoal = &enic->rx_coalesce_setting; + + ecmd->tx_coalesce_usecs = enic->tx_coalesce_usecs; + ecmd->rx_coalesce_usecs = enic->rx_coalesce_usecs; + if (rxcoal->use_adaptive_rx_coalesce) + ecmd->use_adaptive_rx_coalesce = 1; + ecmd->rx_coalesce_usecs_low = rxcoal->small_pkt_range_start; + ecmd->rx_coalesce_usecs_high = rxcoal->range_end; + + return 0; +} + +static int enic_set_coalesce(struct net_device *netdev, + struct ethtool_coalesce *ecmd) +{ + struct enic *enic = netdev_priv(netdev); + u32 tx_coalesce_usecs; + u32 rx_coalesce_usecs; + u32 rx_coalesce_usecs_low; + u32 rx_coalesce_usecs_high; + u32 coalesce_usecs_max; + unsigned int i, intr; + struct enic_rx_coal *rxcoal = &enic->rx_coalesce_setting; + + coalesce_usecs_max = vnic_dev_get_intr_coal_timer_max(enic->vdev); + tx_coalesce_usecs = min_t(u32, ecmd->tx_coalesce_usecs, + coalesce_usecs_max); + rx_coalesce_usecs = min_t(u32, ecmd->rx_coalesce_usecs, + coalesce_usecs_max); + + rx_coalesce_usecs_low = min_t(u32, ecmd->rx_coalesce_usecs_low, + coalesce_usecs_max); + rx_coalesce_usecs_high = min_t(u32, ecmd->rx_coalesce_usecs_high, + coalesce_usecs_max); + + switch (vnic_dev_get_intr_mode(enic->vdev)) { + case VNIC_DEV_INTR_MODE_INTX: + if (tx_coalesce_usecs != rx_coalesce_usecs) + return -EINVAL; + if (ecmd->use_adaptive_rx_coalesce || + ecmd->rx_coalesce_usecs_low || + ecmd->rx_coalesce_usecs_high) + return -EINVAL; + + intr = enic_legacy_io_intr(); + vnic_intr_coalescing_timer_set(&enic->intr[intr], + tx_coalesce_usecs); + break; + case VNIC_DEV_INTR_MODE_MSI: + if (tx_coalesce_usecs != rx_coalesce_usecs) + return -EINVAL; + if (ecmd->use_adaptive_rx_coalesce || + ecmd->rx_coalesce_usecs_low || + ecmd->rx_coalesce_usecs_high) + return -EINVAL; + + vnic_intr_coalescing_timer_set(&enic->intr[0], + tx_coalesce_usecs); + break; + case VNIC_DEV_INTR_MODE_MSIX: + if (ecmd->rx_coalesce_usecs_high && + (rx_coalesce_usecs_high < + rx_coalesce_usecs_low + ENIC_AIC_LARGE_PKT_DIFF)) + return -EINVAL; + + for (i = 0; i < enic->wq_count; i++) { + intr = enic_msix_wq_intr(enic, i); + vnic_intr_coalescing_timer_set(&enic->intr[intr], + tx_coalesce_usecs); + } + + rxcoal->use_adaptive_rx_coalesce = + !!ecmd->use_adaptive_rx_coalesce; + if (!rxcoal->use_adaptive_rx_coalesce) + enic_intr_coal_set_rx(enic, rx_coalesce_usecs); + + if (ecmd->rx_coalesce_usecs_high) { + rxcoal->range_end = rx_coalesce_usecs_high; + rxcoal->small_pkt_range_start = rx_coalesce_usecs_low; + rxcoal->large_pkt_range_start = rx_coalesce_usecs_low + + ENIC_AIC_LARGE_PKT_DIFF; + } + break; + default: + break; + } + + enic->tx_coalesce_usecs = tx_coalesce_usecs; + enic->rx_coalesce_usecs = rx_coalesce_usecs; + + return 0; +} + +static int enic_grxclsrlall(struct enic *enic, struct ethtool_rxnfc *cmd, + u32 *rule_locs) +{ + int j, ret = 0, cnt = 0; + + cmd->data = enic->rfs_h.max - enic->rfs_h.free; + for (j = 0; j < (1 << ENIC_RFS_FLW_BITSHIFT); j++) { + struct hlist_head *hhead; + struct hlist_node *tmp; + struct enic_rfs_fltr_node *n; + + hhead = &enic->rfs_h.ht_head[j]; + hlist_for_each_entry_safe(n, tmp, hhead, node) { + if (cnt == cmd->rule_cnt) + return -EMSGSIZE; + rule_locs[cnt] = n->fltr_id; + cnt++; + } + } + cmd->rule_cnt = cnt; + + return ret; +} + +static int enic_grxclsrule(struct enic *enic, struct ethtool_rxnfc *cmd) +{ + struct ethtool_rx_flow_spec *fsp = + (struct ethtool_rx_flow_spec *)&cmd->fs; + struct enic_rfs_fltr_node *n; + + n = htbl_fltr_search(enic, (u16)fsp->location); + if (!n) + return -EINVAL; + switch (n->keys.ip_proto) { + case IPPROTO_TCP: + fsp->flow_type = TCP_V4_FLOW; + break; + case IPPROTO_UDP: + fsp->flow_type = UDP_V4_FLOW; + break; + default: + return -EINVAL; + break; + } + + fsp->h_u.tcp_ip4_spec.ip4src = n->keys.src; + fsp->m_u.tcp_ip4_spec.ip4src = (__u32)~0; + + fsp->h_u.tcp_ip4_spec.ip4dst = n->keys.dst; + fsp->m_u.tcp_ip4_spec.ip4dst = (__u32)~0; + + fsp->h_u.tcp_ip4_spec.psrc = n->keys.port16[0]; + fsp->m_u.tcp_ip4_spec.psrc = (__u16)~0; + + fsp->h_u.tcp_ip4_spec.pdst = n->keys.port16[1]; + fsp->m_u.tcp_ip4_spec.pdst = (__u16)~0; + + fsp->ring_cookie = n->rq_id; + + return 0; +} + +static int enic_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd, + u32 *rule_locs) +{ + struct enic *enic = netdev_priv(dev); + int ret = 0; + + switch (cmd->cmd) { + case ETHTOOL_GRXRINGS: + cmd->data = enic->rq_count; + break; + case ETHTOOL_GRXCLSRLCNT: + spin_lock_bh(&enic->rfs_h.lock); + cmd->rule_cnt = enic->rfs_h.max - enic->rfs_h.free; + cmd->data = enic->rfs_h.max; + spin_unlock_bh(&enic->rfs_h.lock); + break; + case ETHTOOL_GRXCLSRLALL: + spin_lock_bh(&enic->rfs_h.lock); + ret = enic_grxclsrlall(enic, cmd, rule_locs); + spin_unlock_bh(&enic->rfs_h.lock); + break; + case ETHTOOL_GRXCLSRULE: + spin_lock_bh(&enic->rfs_h.lock); + ret = enic_grxclsrule(enic, cmd); + spin_unlock_bh(&enic->rfs_h.lock); + break; + default: + ret = -EOPNOTSUPP; + break; + } + + return ret; +} + +static int enic_get_tunable(struct net_device *dev, + const struct ethtool_tunable *tuna, void *data) +{ + struct enic *enic = netdev_priv(dev); + int ret = 0; + + switch (tuna->id) { + case ETHTOOL_RX_COPYBREAK: + *(u32 *)data = enic->rx_copybreak; + break; + default: + ret = -EINVAL; + break; + } + + return ret; +} + +static int enic_set_tunable(struct net_device *dev, + const struct ethtool_tunable *tuna, + const void *data) +{ + struct enic *enic = netdev_priv(dev); + int ret = 0; + + switch (tuna->id) { + case ETHTOOL_RX_COPYBREAK: + enic->rx_copybreak = *(u32 *)data; + break; + default: + ret = -EINVAL; + break; + } + + return ret; +} + +static u32 enic_get_rxfh_key_size(struct net_device *netdev) +{ + return ENIC_RSS_LEN; +} + +static int enic_get_rxfh(struct net_device *netdev, u32 *indir, u8 *hkey, + u8 *hfunc) +{ + struct enic *enic = netdev_priv(netdev); + + if (hkey) + memcpy(hkey, enic->rss_key, ENIC_RSS_LEN); + + if (hfunc) + *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; +} |