1f13bbc2fSNeel Patel /** 2f13bbc2fSNeel Patel * Copyright 2013 Cisco Systems, Inc. All rights reserved. 3f13bbc2fSNeel Patel * 4f13bbc2fSNeel Patel * This program is free software; you may redistribute it and/or modify 5f13bbc2fSNeel Patel * it under the terms of the GNU General Public License as published by 6f13bbc2fSNeel Patel * the Free Software Foundation; version 2 of the License. 7f13bbc2fSNeel Patel * 8f13bbc2fSNeel Patel * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 9f13bbc2fSNeel Patel * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 10f13bbc2fSNeel Patel * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 11f13bbc2fSNeel Patel * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 12f13bbc2fSNeel Patel * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 13f13bbc2fSNeel Patel * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 14f13bbc2fSNeel Patel * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 15f13bbc2fSNeel Patel * SOFTWARE. 16f13bbc2fSNeel Patel * 17f13bbc2fSNeel Patel */ 18f13bbc2fSNeel Patel 19f13bbc2fSNeel Patel #include <linux/netdevice.h> 20f13bbc2fSNeel Patel #include <linux/ethtool.h> 21f13bbc2fSNeel Patel 22f13bbc2fSNeel Patel #include "enic_res.h" 23f13bbc2fSNeel Patel #include "enic.h" 24f13bbc2fSNeel Patel #include "enic_dev.h" 253762ff8fSGovindarajulu Varadarajan #include "enic_clsf.h" 264f675eb2SGovindarajulu Varadarajan #include "vnic_rss.h" 2758feff07SGovindarajulu Varadarajan #include "vnic_stats.h" 28f13bbc2fSNeel Patel 29f13bbc2fSNeel Patel struct enic_stat { 30f13bbc2fSNeel Patel char name[ETH_GSTRING_LEN]; 31f13bbc2fSNeel Patel unsigned int index; 32f13bbc2fSNeel Patel }; 33f13bbc2fSNeel Patel 34f13bbc2fSNeel Patel #define ENIC_TX_STAT(stat) { \ 35f13bbc2fSNeel Patel .name = #stat, \ 36f13bbc2fSNeel Patel .index = offsetof(struct vnic_tx_stats, stat) / sizeof(u64) \ 37f13bbc2fSNeel Patel } 38f13bbc2fSNeel Patel 39f13bbc2fSNeel Patel #define ENIC_RX_STAT(stat) { \ 40f13bbc2fSNeel Patel .name = #stat, \ 41f13bbc2fSNeel Patel .index = offsetof(struct vnic_rx_stats, stat) / sizeof(u64) \ 42f13bbc2fSNeel Patel } 43f13bbc2fSNeel Patel 4458feff07SGovindarajulu Varadarajan #define ENIC_GEN_STAT(stat) { \ 4558feff07SGovindarajulu Varadarajan .name = #stat, \ 4658feff07SGovindarajulu Varadarajan .index = offsetof(struct vnic_gen_stats, stat) / sizeof(u64)\ 4758feff07SGovindarajulu Varadarajan } 4858feff07SGovindarajulu Varadarajan 49f13bbc2fSNeel Patel static const struct enic_stat enic_tx_stats[] = { 50f13bbc2fSNeel Patel ENIC_TX_STAT(tx_frames_ok), 51f13bbc2fSNeel Patel ENIC_TX_STAT(tx_unicast_frames_ok), 52f13bbc2fSNeel Patel ENIC_TX_STAT(tx_multicast_frames_ok), 53f13bbc2fSNeel Patel ENIC_TX_STAT(tx_broadcast_frames_ok), 54f13bbc2fSNeel Patel ENIC_TX_STAT(tx_bytes_ok), 55f13bbc2fSNeel Patel ENIC_TX_STAT(tx_unicast_bytes_ok), 56f13bbc2fSNeel Patel ENIC_TX_STAT(tx_multicast_bytes_ok), 57f13bbc2fSNeel Patel ENIC_TX_STAT(tx_broadcast_bytes_ok), 58f13bbc2fSNeel Patel ENIC_TX_STAT(tx_drops), 59f13bbc2fSNeel Patel ENIC_TX_STAT(tx_errors), 60f13bbc2fSNeel Patel ENIC_TX_STAT(tx_tso), 61f13bbc2fSNeel Patel }; 62f13bbc2fSNeel Patel 63f13bbc2fSNeel Patel static const struct enic_stat enic_rx_stats[] = { 64f13bbc2fSNeel Patel ENIC_RX_STAT(rx_frames_ok), 65f13bbc2fSNeel Patel ENIC_RX_STAT(rx_frames_total), 66f13bbc2fSNeel Patel ENIC_RX_STAT(rx_unicast_frames_ok), 67f13bbc2fSNeel Patel ENIC_RX_STAT(rx_multicast_frames_ok), 68f13bbc2fSNeel Patel ENIC_RX_STAT(rx_broadcast_frames_ok), 69f13bbc2fSNeel Patel ENIC_RX_STAT(rx_bytes_ok), 70f13bbc2fSNeel Patel ENIC_RX_STAT(rx_unicast_bytes_ok), 71f13bbc2fSNeel Patel ENIC_RX_STAT(rx_multicast_bytes_ok), 72f13bbc2fSNeel Patel ENIC_RX_STAT(rx_broadcast_bytes_ok), 73f13bbc2fSNeel Patel ENIC_RX_STAT(rx_drop), 74f13bbc2fSNeel Patel ENIC_RX_STAT(rx_no_bufs), 75f13bbc2fSNeel Patel ENIC_RX_STAT(rx_errors), 76f13bbc2fSNeel Patel ENIC_RX_STAT(rx_rss), 77f13bbc2fSNeel Patel ENIC_RX_STAT(rx_crc_errors), 78f13bbc2fSNeel Patel ENIC_RX_STAT(rx_frames_64), 79f13bbc2fSNeel Patel ENIC_RX_STAT(rx_frames_127), 80f13bbc2fSNeel Patel ENIC_RX_STAT(rx_frames_255), 81f13bbc2fSNeel Patel ENIC_RX_STAT(rx_frames_511), 82f13bbc2fSNeel Patel ENIC_RX_STAT(rx_frames_1023), 83f13bbc2fSNeel Patel ENIC_RX_STAT(rx_frames_1518), 84f13bbc2fSNeel Patel ENIC_RX_STAT(rx_frames_to_max), 85f13bbc2fSNeel Patel }; 86f13bbc2fSNeel Patel 8758feff07SGovindarajulu Varadarajan static const struct enic_stat enic_gen_stats[] = { 8858feff07SGovindarajulu Varadarajan ENIC_GEN_STAT(dma_map_error), 8958feff07SGovindarajulu Varadarajan }; 9058feff07SGovindarajulu Varadarajan 91f13bbc2fSNeel Patel static const unsigned int enic_n_tx_stats = ARRAY_SIZE(enic_tx_stats); 92f13bbc2fSNeel Patel static const unsigned int enic_n_rx_stats = ARRAY_SIZE(enic_rx_stats); 9358feff07SGovindarajulu Varadarajan static const unsigned int enic_n_gen_stats = ARRAY_SIZE(enic_gen_stats); 94f13bbc2fSNeel Patel 95a20667bfSLad, Prabhakar static void enic_intr_coal_set_rx(struct enic *enic, u32 timer) 967c2ce6e6SSujith Sankar { 977c2ce6e6SSujith Sankar int i; 987c2ce6e6SSujith Sankar int intr; 997c2ce6e6SSujith Sankar 1007c2ce6e6SSujith Sankar for (i = 0; i < enic->rq_count; i++) { 1017c2ce6e6SSujith Sankar intr = enic_msix_rq_intr(enic, i); 1027c2ce6e6SSujith Sankar vnic_intr_coalescing_timer_set(&enic->intr[intr], timer); 1037c2ce6e6SSujith Sankar } 1047c2ce6e6SSujith Sankar } 1057c2ce6e6SSujith Sankar 1067659f50cSPhilippe Reynes static int enic_get_ksettings(struct net_device *netdev, 1077659f50cSPhilippe Reynes struct ethtool_link_ksettings *ecmd) 108f13bbc2fSNeel Patel { 109f13bbc2fSNeel Patel struct enic *enic = netdev_priv(netdev); 1107659f50cSPhilippe Reynes struct ethtool_link_settings *base = &ecmd->base; 111f13bbc2fSNeel Patel 1127659f50cSPhilippe Reynes ethtool_link_ksettings_add_link_mode(ecmd, supported, 1137659f50cSPhilippe Reynes 10000baseT_Full); 1147659f50cSPhilippe Reynes ethtool_link_ksettings_add_link_mode(ecmd, supported, FIBRE); 1157659f50cSPhilippe Reynes ethtool_link_ksettings_add_link_mode(ecmd, advertising, 1167659f50cSPhilippe Reynes 10000baseT_Full); 1177659f50cSPhilippe Reynes ethtool_link_ksettings_add_link_mode(ecmd, advertising, FIBRE); 1187659f50cSPhilippe Reynes base->port = PORT_FIBRE; 119f13bbc2fSNeel Patel 120f13bbc2fSNeel Patel if (netif_carrier_ok(netdev)) { 1217659f50cSPhilippe Reynes base->speed = vnic_dev_port_speed(enic->vdev); 1227659f50cSPhilippe Reynes base->duplex = DUPLEX_FULL; 123f13bbc2fSNeel Patel } else { 1247659f50cSPhilippe Reynes base->speed = SPEED_UNKNOWN; 1257659f50cSPhilippe Reynes base->duplex = DUPLEX_UNKNOWN; 126f13bbc2fSNeel Patel } 127f13bbc2fSNeel Patel 1287659f50cSPhilippe Reynes base->autoneg = AUTONEG_DISABLE; 129f13bbc2fSNeel Patel 130f13bbc2fSNeel Patel return 0; 131f13bbc2fSNeel Patel } 132f13bbc2fSNeel Patel 133f13bbc2fSNeel Patel static void enic_get_drvinfo(struct net_device *netdev, 134f13bbc2fSNeel Patel struct ethtool_drvinfo *drvinfo) 135f13bbc2fSNeel Patel { 136f13bbc2fSNeel Patel struct enic *enic = netdev_priv(netdev); 137f13bbc2fSNeel Patel struct vnic_devcmd_fw_info *fw_info; 13819b596bdSGovindarajulu Varadarajan int err; 139f13bbc2fSNeel Patel 14019b596bdSGovindarajulu Varadarajan err = enic_dev_fw_info(enic, &fw_info); 14119b596bdSGovindarajulu Varadarajan /* return only when pci_zalloc_consistent fails in vnic_dev_fw_info 14219b596bdSGovindarajulu Varadarajan * For other failures, like devcmd failure, we return previously 14319b596bdSGovindarajulu Varadarajan * recorded info. 14419b596bdSGovindarajulu Varadarajan */ 14519b596bdSGovindarajulu Varadarajan if (err == -ENOMEM) 14619b596bdSGovindarajulu Varadarajan return; 147f13bbc2fSNeel Patel 148f13bbc2fSNeel Patel strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); 149f13bbc2fSNeel Patel strlcpy(drvinfo->version, DRV_VERSION, sizeof(drvinfo->version)); 150f13bbc2fSNeel Patel strlcpy(drvinfo->fw_version, fw_info->fw_version, 151f13bbc2fSNeel Patel sizeof(drvinfo->fw_version)); 152f13bbc2fSNeel Patel strlcpy(drvinfo->bus_info, pci_name(enic->pdev), 153f13bbc2fSNeel Patel sizeof(drvinfo->bus_info)); 154f13bbc2fSNeel Patel } 155f13bbc2fSNeel Patel 156f13bbc2fSNeel Patel static void enic_get_strings(struct net_device *netdev, u32 stringset, 157f13bbc2fSNeel Patel u8 *data) 158f13bbc2fSNeel Patel { 159f13bbc2fSNeel Patel unsigned int i; 160f13bbc2fSNeel Patel 161f13bbc2fSNeel Patel switch (stringset) { 162f13bbc2fSNeel Patel case ETH_SS_STATS: 163f13bbc2fSNeel Patel for (i = 0; i < enic_n_tx_stats; i++) { 164f13bbc2fSNeel Patel memcpy(data, enic_tx_stats[i].name, ETH_GSTRING_LEN); 165f13bbc2fSNeel Patel data += ETH_GSTRING_LEN; 166f13bbc2fSNeel Patel } 167f13bbc2fSNeel Patel for (i = 0; i < enic_n_rx_stats; i++) { 168f13bbc2fSNeel Patel memcpy(data, enic_rx_stats[i].name, ETH_GSTRING_LEN); 169f13bbc2fSNeel Patel data += ETH_GSTRING_LEN; 170f13bbc2fSNeel Patel } 17158feff07SGovindarajulu Varadarajan for (i = 0; i < enic_n_gen_stats; i++) { 17258feff07SGovindarajulu Varadarajan memcpy(data, enic_gen_stats[i].name, ETH_GSTRING_LEN); 17358feff07SGovindarajulu Varadarajan data += ETH_GSTRING_LEN; 17458feff07SGovindarajulu Varadarajan } 175f13bbc2fSNeel Patel break; 176f13bbc2fSNeel Patel } 177f13bbc2fSNeel Patel } 178f13bbc2fSNeel Patel 179ed519b74SParvi Kaustubhi static void enic_get_ringparam(struct net_device *netdev, 180ed519b74SParvi Kaustubhi struct ethtool_ringparam *ring) 181ed519b74SParvi Kaustubhi { 182ed519b74SParvi Kaustubhi struct enic *enic = netdev_priv(netdev); 183ed519b74SParvi Kaustubhi struct vnic_enet_config *c = &enic->config; 184ed519b74SParvi Kaustubhi 185ed519b74SParvi Kaustubhi ring->rx_max_pending = ENIC_MAX_RQ_DESCS; 186ed519b74SParvi Kaustubhi ring->rx_pending = c->rq_desc_count; 187ed519b74SParvi Kaustubhi ring->tx_max_pending = ENIC_MAX_WQ_DESCS; 188ed519b74SParvi Kaustubhi ring->tx_pending = c->wq_desc_count; 189ed519b74SParvi Kaustubhi } 190ed519b74SParvi Kaustubhi 191ed519b74SParvi Kaustubhi static int enic_set_ringparam(struct net_device *netdev, 192ed519b74SParvi Kaustubhi struct ethtool_ringparam *ring) 193ed519b74SParvi Kaustubhi { 194ed519b74SParvi Kaustubhi struct enic *enic = netdev_priv(netdev); 195ed519b74SParvi Kaustubhi struct vnic_enet_config *c = &enic->config; 196ed519b74SParvi Kaustubhi int running = netif_running(netdev); 197ed519b74SParvi Kaustubhi unsigned int rx_pending; 198ed519b74SParvi Kaustubhi unsigned int tx_pending; 199ed519b74SParvi Kaustubhi int err = 0; 200ed519b74SParvi Kaustubhi 201ed519b74SParvi Kaustubhi if (ring->rx_mini_max_pending || ring->rx_mini_pending) { 202ed519b74SParvi Kaustubhi netdev_info(netdev, 203ed519b74SParvi Kaustubhi "modifying mini ring params is not supported"); 204ed519b74SParvi Kaustubhi return -EINVAL; 205ed519b74SParvi Kaustubhi } 206ed519b74SParvi Kaustubhi if (ring->rx_jumbo_max_pending || ring->rx_jumbo_pending) { 207ed519b74SParvi Kaustubhi netdev_info(netdev, 208ed519b74SParvi Kaustubhi "modifying jumbo ring params is not supported"); 209ed519b74SParvi Kaustubhi return -EINVAL; 210ed519b74SParvi Kaustubhi } 211ed519b74SParvi Kaustubhi rx_pending = c->rq_desc_count; 212ed519b74SParvi Kaustubhi tx_pending = c->wq_desc_count; 213ed519b74SParvi Kaustubhi if (ring->rx_pending > ENIC_MAX_RQ_DESCS || 214ed519b74SParvi Kaustubhi ring->rx_pending < ENIC_MIN_RQ_DESCS) { 215ed519b74SParvi Kaustubhi netdev_info(netdev, "rx pending (%u) not in range [%u,%u]", 216ed519b74SParvi Kaustubhi ring->rx_pending, ENIC_MIN_RQ_DESCS, 217ed519b74SParvi Kaustubhi ENIC_MAX_RQ_DESCS); 218ed519b74SParvi Kaustubhi return -EINVAL; 219ed519b74SParvi Kaustubhi } 220ed519b74SParvi Kaustubhi if (ring->tx_pending > ENIC_MAX_WQ_DESCS || 221ed519b74SParvi Kaustubhi ring->tx_pending < ENIC_MIN_WQ_DESCS) { 222ed519b74SParvi Kaustubhi netdev_info(netdev, "tx pending (%u) not in range [%u,%u]", 223ed519b74SParvi Kaustubhi ring->tx_pending, ENIC_MIN_WQ_DESCS, 224ed519b74SParvi Kaustubhi ENIC_MAX_WQ_DESCS); 225ed519b74SParvi Kaustubhi return -EINVAL; 226ed519b74SParvi Kaustubhi } 227ed519b74SParvi Kaustubhi if (running) 228ed519b74SParvi Kaustubhi dev_close(netdev); 229ed519b74SParvi Kaustubhi c->rq_desc_count = 230ed519b74SParvi Kaustubhi ring->rx_pending & 0xffffffe0; /* must be aligned to groups of 32 */ 231ed519b74SParvi Kaustubhi c->wq_desc_count = 232ed519b74SParvi Kaustubhi ring->tx_pending & 0xffffffe0; /* must be aligned to groups of 32 */ 233ed519b74SParvi Kaustubhi enic_free_vnic_resources(enic); 234ed519b74SParvi Kaustubhi err = enic_alloc_vnic_resources(enic); 235ed519b74SParvi Kaustubhi if (err) { 236ed519b74SParvi Kaustubhi netdev_err(netdev, 237ed519b74SParvi Kaustubhi "Failed to alloc vNIC resources, aborting\n"); 238ed519b74SParvi Kaustubhi enic_free_vnic_resources(enic); 239ed519b74SParvi Kaustubhi goto err_out; 240ed519b74SParvi Kaustubhi } 241ed519b74SParvi Kaustubhi enic_init_vnic_resources(enic); 242ed519b74SParvi Kaustubhi if (running) { 243ed519b74SParvi Kaustubhi err = dev_open(netdev); 244ed519b74SParvi Kaustubhi if (err) 245ed519b74SParvi Kaustubhi goto err_out; 246ed519b74SParvi Kaustubhi } 247ed519b74SParvi Kaustubhi return 0; 248ed519b74SParvi Kaustubhi err_out: 249ed519b74SParvi Kaustubhi c->rq_desc_count = rx_pending; 250ed519b74SParvi Kaustubhi c->wq_desc_count = tx_pending; 251ed519b74SParvi Kaustubhi return err; 252ed519b74SParvi Kaustubhi } 253ed519b74SParvi Kaustubhi 254f13bbc2fSNeel Patel static int enic_get_sset_count(struct net_device *netdev, int sset) 255f13bbc2fSNeel Patel { 256f13bbc2fSNeel Patel switch (sset) { 257f13bbc2fSNeel Patel case ETH_SS_STATS: 25858feff07SGovindarajulu Varadarajan return enic_n_tx_stats + enic_n_rx_stats + enic_n_gen_stats; 259f13bbc2fSNeel Patel default: 260f13bbc2fSNeel Patel return -EOPNOTSUPP; 261f13bbc2fSNeel Patel } 262f13bbc2fSNeel Patel } 263f13bbc2fSNeel Patel 264f13bbc2fSNeel Patel static void enic_get_ethtool_stats(struct net_device *netdev, 265f13bbc2fSNeel Patel struct ethtool_stats *stats, u64 *data) 266f13bbc2fSNeel Patel { 267f13bbc2fSNeel Patel struct enic *enic = netdev_priv(netdev); 268f13bbc2fSNeel Patel struct vnic_stats *vstats; 269f13bbc2fSNeel Patel unsigned int i; 27019b596bdSGovindarajulu Varadarajan int err; 271f13bbc2fSNeel Patel 27219b596bdSGovindarajulu Varadarajan err = enic_dev_stats_dump(enic, &vstats); 27319b596bdSGovindarajulu Varadarajan /* return only when pci_zalloc_consistent fails in vnic_dev_stats_dump 27419b596bdSGovindarajulu Varadarajan * For other failures, like devcmd failure, we return previously 27519b596bdSGovindarajulu Varadarajan * recorded stats. 27619b596bdSGovindarajulu Varadarajan */ 27719b596bdSGovindarajulu Varadarajan if (err == -ENOMEM) 27819b596bdSGovindarajulu Varadarajan return; 279f13bbc2fSNeel Patel 280f13bbc2fSNeel Patel for (i = 0; i < enic_n_tx_stats; i++) 281f13bbc2fSNeel Patel *(data++) = ((u64 *)&vstats->tx)[enic_tx_stats[i].index]; 282f13bbc2fSNeel Patel for (i = 0; i < enic_n_rx_stats; i++) 283f13bbc2fSNeel Patel *(data++) = ((u64 *)&vstats->rx)[enic_rx_stats[i].index]; 28458feff07SGovindarajulu Varadarajan for (i = 0; i < enic_n_gen_stats; i++) 28558feff07SGovindarajulu Varadarajan *(data++) = ((u64 *)&enic->gen_stats)[enic_gen_stats[i].index]; 286f13bbc2fSNeel Patel } 287f13bbc2fSNeel Patel 288f13bbc2fSNeel Patel static u32 enic_get_msglevel(struct net_device *netdev) 289f13bbc2fSNeel Patel { 290f13bbc2fSNeel Patel struct enic *enic = netdev_priv(netdev); 291f13bbc2fSNeel Patel return enic->msg_enable; 292f13bbc2fSNeel Patel } 293f13bbc2fSNeel Patel 294f13bbc2fSNeel Patel static void enic_set_msglevel(struct net_device *netdev, u32 value) 295f13bbc2fSNeel Patel { 296f13bbc2fSNeel Patel struct enic *enic = netdev_priv(netdev); 297f13bbc2fSNeel Patel enic->msg_enable = value; 298f13bbc2fSNeel Patel } 299f13bbc2fSNeel Patel 300f13bbc2fSNeel Patel static int enic_get_coalesce(struct net_device *netdev, 301f13bbc2fSNeel Patel struct ethtool_coalesce *ecmd) 302f13bbc2fSNeel Patel { 303f13bbc2fSNeel Patel struct enic *enic = netdev_priv(netdev); 3047c2ce6e6SSujith Sankar struct enic_rx_coal *rxcoal = &enic->rx_coalesce_setting; 305f13bbc2fSNeel Patel 306d9382bdaSGovindarajulu Varadarajan if (vnic_dev_get_intr_mode(enic->vdev) == VNIC_DEV_INTR_MODE_MSIX) 307f13bbc2fSNeel Patel ecmd->tx_coalesce_usecs = enic->tx_coalesce_usecs; 308f13bbc2fSNeel Patel ecmd->rx_coalesce_usecs = enic->rx_coalesce_usecs; 3097c2ce6e6SSujith Sankar if (rxcoal->use_adaptive_rx_coalesce) 3107c2ce6e6SSujith Sankar ecmd->use_adaptive_rx_coalesce = 1; 3117c2ce6e6SSujith Sankar ecmd->rx_coalesce_usecs_low = rxcoal->small_pkt_range_start; 3127c2ce6e6SSujith Sankar ecmd->rx_coalesce_usecs_high = rxcoal->range_end; 313f13bbc2fSNeel Patel 314f13bbc2fSNeel Patel return 0; 315f13bbc2fSNeel Patel } 316f13bbc2fSNeel Patel 317d9382bdaSGovindarajulu Varadarajan static int enic_coalesce_valid(struct enic *enic, 318d9382bdaSGovindarajulu Varadarajan struct ethtool_coalesce *ec) 319d9382bdaSGovindarajulu Varadarajan { 320d9382bdaSGovindarajulu Varadarajan u32 coalesce_usecs_max = vnic_dev_get_intr_coal_timer_max(enic->vdev); 321d9382bdaSGovindarajulu Varadarajan u32 rx_coalesce_usecs_high = min_t(u32, coalesce_usecs_max, 322d9382bdaSGovindarajulu Varadarajan ec->rx_coalesce_usecs_high); 323d9382bdaSGovindarajulu Varadarajan u32 rx_coalesce_usecs_low = min_t(u32, coalesce_usecs_max, 324d9382bdaSGovindarajulu Varadarajan ec->rx_coalesce_usecs_low); 325d9382bdaSGovindarajulu Varadarajan 326d9382bdaSGovindarajulu Varadarajan if (ec->rx_max_coalesced_frames || 327d9382bdaSGovindarajulu Varadarajan ec->rx_coalesce_usecs_irq || 328d9382bdaSGovindarajulu Varadarajan ec->rx_max_coalesced_frames_irq || 329d9382bdaSGovindarajulu Varadarajan ec->tx_max_coalesced_frames || 330d9382bdaSGovindarajulu Varadarajan ec->tx_coalesce_usecs_irq || 331d9382bdaSGovindarajulu Varadarajan ec->tx_max_coalesced_frames_irq || 332d9382bdaSGovindarajulu Varadarajan ec->stats_block_coalesce_usecs || 333d9382bdaSGovindarajulu Varadarajan ec->use_adaptive_tx_coalesce || 334d9382bdaSGovindarajulu Varadarajan ec->pkt_rate_low || 335d9382bdaSGovindarajulu Varadarajan ec->rx_max_coalesced_frames_low || 336d9382bdaSGovindarajulu Varadarajan ec->tx_coalesce_usecs_low || 337d9382bdaSGovindarajulu Varadarajan ec->tx_max_coalesced_frames_low || 338d9382bdaSGovindarajulu Varadarajan ec->pkt_rate_high || 339d9382bdaSGovindarajulu Varadarajan ec->rx_max_coalesced_frames_high || 340d9382bdaSGovindarajulu Varadarajan ec->tx_coalesce_usecs_high || 341d9382bdaSGovindarajulu Varadarajan ec->tx_max_coalesced_frames_high || 342d9382bdaSGovindarajulu Varadarajan ec->rate_sample_interval) 343d9382bdaSGovindarajulu Varadarajan return -EINVAL; 344d9382bdaSGovindarajulu Varadarajan 345d9382bdaSGovindarajulu Varadarajan if ((vnic_dev_get_intr_mode(enic->vdev) != VNIC_DEV_INTR_MODE_MSIX) && 346d9382bdaSGovindarajulu Varadarajan ec->tx_coalesce_usecs) 347d9382bdaSGovindarajulu Varadarajan return -EINVAL; 348d9382bdaSGovindarajulu Varadarajan 349d9382bdaSGovindarajulu Varadarajan if ((ec->tx_coalesce_usecs > coalesce_usecs_max) || 350d9382bdaSGovindarajulu Varadarajan (ec->rx_coalesce_usecs > coalesce_usecs_max) || 351d9382bdaSGovindarajulu Varadarajan (ec->rx_coalesce_usecs_low > coalesce_usecs_max) || 352d9382bdaSGovindarajulu Varadarajan (ec->rx_coalesce_usecs_high > coalesce_usecs_max)) 353d9382bdaSGovindarajulu Varadarajan netdev_info(enic->netdev, "ethtool_set_coalesce: adaptor supports max coalesce value of %d. Setting max value.\n", 354d9382bdaSGovindarajulu Varadarajan coalesce_usecs_max); 355d9382bdaSGovindarajulu Varadarajan 356d9382bdaSGovindarajulu Varadarajan if (ec->rx_coalesce_usecs_high && 357d9382bdaSGovindarajulu Varadarajan (rx_coalesce_usecs_high < 358d9382bdaSGovindarajulu Varadarajan rx_coalesce_usecs_low + ENIC_AIC_LARGE_PKT_DIFF)) 359d9382bdaSGovindarajulu Varadarajan return -EINVAL; 360d9382bdaSGovindarajulu Varadarajan 361d9382bdaSGovindarajulu Varadarajan return 0; 362d9382bdaSGovindarajulu Varadarajan } 363d9382bdaSGovindarajulu Varadarajan 364f13bbc2fSNeel Patel static int enic_set_coalesce(struct net_device *netdev, 365f13bbc2fSNeel Patel struct ethtool_coalesce *ecmd) 366f13bbc2fSNeel Patel { 367f13bbc2fSNeel Patel struct enic *enic = netdev_priv(netdev); 368f13bbc2fSNeel Patel u32 tx_coalesce_usecs; 369f13bbc2fSNeel Patel u32 rx_coalesce_usecs; 3707c2ce6e6SSujith Sankar u32 rx_coalesce_usecs_low; 3717c2ce6e6SSujith Sankar u32 rx_coalesce_usecs_high; 3727c2ce6e6SSujith Sankar u32 coalesce_usecs_max; 373f13bbc2fSNeel Patel unsigned int i, intr; 374d9382bdaSGovindarajulu Varadarajan int ret; 3757c2ce6e6SSujith Sankar struct enic_rx_coal *rxcoal = &enic->rx_coalesce_setting; 376f13bbc2fSNeel Patel 377d9382bdaSGovindarajulu Varadarajan ret = enic_coalesce_valid(enic, ecmd); 378d9382bdaSGovindarajulu Varadarajan if (ret) 379d9382bdaSGovindarajulu Varadarajan return ret; 3807c2ce6e6SSujith Sankar coalesce_usecs_max = vnic_dev_get_intr_coal_timer_max(enic->vdev); 381f13bbc2fSNeel Patel tx_coalesce_usecs = min_t(u32, ecmd->tx_coalesce_usecs, 3827c2ce6e6SSujith Sankar coalesce_usecs_max); 383f13bbc2fSNeel Patel rx_coalesce_usecs = min_t(u32, ecmd->rx_coalesce_usecs, 3847c2ce6e6SSujith Sankar coalesce_usecs_max); 3857c2ce6e6SSujith Sankar 3867c2ce6e6SSujith Sankar rx_coalesce_usecs_low = min_t(u32, ecmd->rx_coalesce_usecs_low, 3877c2ce6e6SSujith Sankar coalesce_usecs_max); 3887c2ce6e6SSujith Sankar rx_coalesce_usecs_high = min_t(u32, ecmd->rx_coalesce_usecs_high, 3897c2ce6e6SSujith Sankar coalesce_usecs_max); 390f13bbc2fSNeel Patel 391d9382bdaSGovindarajulu Varadarajan if (vnic_dev_get_intr_mode(enic->vdev) == VNIC_DEV_INTR_MODE_MSIX) { 392f13bbc2fSNeel Patel for (i = 0; i < enic->wq_count; i++) { 393f13bbc2fSNeel Patel intr = enic_msix_wq_intr(enic, i); 394f13bbc2fSNeel Patel vnic_intr_coalescing_timer_set(&enic->intr[intr], 395f13bbc2fSNeel Patel tx_coalesce_usecs); 396f13bbc2fSNeel Patel } 397d9382bdaSGovindarajulu Varadarajan enic->tx_coalesce_usecs = tx_coalesce_usecs; 398d9382bdaSGovindarajulu Varadarajan } 399d9382bdaSGovindarajulu Varadarajan rxcoal->use_adaptive_rx_coalesce = !!ecmd->use_adaptive_rx_coalesce; 400a16a3361SGovindarajulu Varadarajan if (!rxcoal->use_adaptive_rx_coalesce) 4017c2ce6e6SSujith Sankar enic_intr_coal_set_rx(enic, rx_coalesce_usecs); 4027c2ce6e6SSujith Sankar if (ecmd->rx_coalesce_usecs_high) { 4037c2ce6e6SSujith Sankar rxcoal->range_end = rx_coalesce_usecs_high; 4047c2ce6e6SSujith Sankar rxcoal->small_pkt_range_start = rx_coalesce_usecs_low; 4057c2ce6e6SSujith Sankar rxcoal->large_pkt_range_start = rx_coalesce_usecs_low + 4067c2ce6e6SSujith Sankar ENIC_AIC_LARGE_PKT_DIFF; 4077c2ce6e6SSujith Sankar } 408f13bbc2fSNeel Patel 409f13bbc2fSNeel Patel enic->rx_coalesce_usecs = rx_coalesce_usecs; 410f13bbc2fSNeel Patel 411f13bbc2fSNeel Patel return 0; 412f13bbc2fSNeel Patel } 413f13bbc2fSNeel Patel 4143762ff8fSGovindarajulu Varadarajan static int enic_grxclsrlall(struct enic *enic, struct ethtool_rxnfc *cmd, 4153762ff8fSGovindarajulu Varadarajan u32 *rule_locs) 4163762ff8fSGovindarajulu Varadarajan { 4173762ff8fSGovindarajulu Varadarajan int j, ret = 0, cnt = 0; 4183762ff8fSGovindarajulu Varadarajan 4193762ff8fSGovindarajulu Varadarajan cmd->data = enic->rfs_h.max - enic->rfs_h.free; 4203762ff8fSGovindarajulu Varadarajan for (j = 0; j < (1 << ENIC_RFS_FLW_BITSHIFT); j++) { 4213762ff8fSGovindarajulu Varadarajan struct hlist_head *hhead; 4223762ff8fSGovindarajulu Varadarajan struct hlist_node *tmp; 4233762ff8fSGovindarajulu Varadarajan struct enic_rfs_fltr_node *n; 4243762ff8fSGovindarajulu Varadarajan 4253762ff8fSGovindarajulu Varadarajan hhead = &enic->rfs_h.ht_head[j]; 4263762ff8fSGovindarajulu Varadarajan hlist_for_each_entry_safe(n, tmp, hhead, node) { 4273762ff8fSGovindarajulu Varadarajan if (cnt == cmd->rule_cnt) 4283762ff8fSGovindarajulu Varadarajan return -EMSGSIZE; 4293762ff8fSGovindarajulu Varadarajan rule_locs[cnt] = n->fltr_id; 4303762ff8fSGovindarajulu Varadarajan cnt++; 4313762ff8fSGovindarajulu Varadarajan } 4323762ff8fSGovindarajulu Varadarajan } 4333762ff8fSGovindarajulu Varadarajan cmd->rule_cnt = cnt; 4343762ff8fSGovindarajulu Varadarajan 4353762ff8fSGovindarajulu Varadarajan return ret; 4363762ff8fSGovindarajulu Varadarajan } 4373762ff8fSGovindarajulu Varadarajan 4383762ff8fSGovindarajulu Varadarajan static int enic_grxclsrule(struct enic *enic, struct ethtool_rxnfc *cmd) 4393762ff8fSGovindarajulu Varadarajan { 4403762ff8fSGovindarajulu Varadarajan struct ethtool_rx_flow_spec *fsp = 4413762ff8fSGovindarajulu Varadarajan (struct ethtool_rx_flow_spec *)&cmd->fs; 4423762ff8fSGovindarajulu Varadarajan struct enic_rfs_fltr_node *n; 4433762ff8fSGovindarajulu Varadarajan 4443762ff8fSGovindarajulu Varadarajan n = htbl_fltr_search(enic, (u16)fsp->location); 4453762ff8fSGovindarajulu Varadarajan if (!n) 4463762ff8fSGovindarajulu Varadarajan return -EINVAL; 44706635a35SJiri Pirko switch (n->keys.basic.ip_proto) { 4483762ff8fSGovindarajulu Varadarajan case IPPROTO_TCP: 4493762ff8fSGovindarajulu Varadarajan fsp->flow_type = TCP_V4_FLOW; 4503762ff8fSGovindarajulu Varadarajan break; 4513762ff8fSGovindarajulu Varadarajan case IPPROTO_UDP: 4523762ff8fSGovindarajulu Varadarajan fsp->flow_type = UDP_V4_FLOW; 4533762ff8fSGovindarajulu Varadarajan break; 4543762ff8fSGovindarajulu Varadarajan default: 4553762ff8fSGovindarajulu Varadarajan return -EINVAL; 4563762ff8fSGovindarajulu Varadarajan break; 4573762ff8fSGovindarajulu Varadarajan } 4583762ff8fSGovindarajulu Varadarajan 459c3f83241STom Herbert fsp->h_u.tcp_ip4_spec.ip4src = flow_get_u32_src(&n->keys); 4603762ff8fSGovindarajulu Varadarajan fsp->m_u.tcp_ip4_spec.ip4src = (__u32)~0; 4613762ff8fSGovindarajulu Varadarajan 462c3f83241STom Herbert fsp->h_u.tcp_ip4_spec.ip4dst = flow_get_u32_dst(&n->keys); 4633762ff8fSGovindarajulu Varadarajan fsp->m_u.tcp_ip4_spec.ip4dst = (__u32)~0; 4643762ff8fSGovindarajulu Varadarajan 46559346afeSJiri Pirko fsp->h_u.tcp_ip4_spec.psrc = n->keys.ports.src; 4663762ff8fSGovindarajulu Varadarajan fsp->m_u.tcp_ip4_spec.psrc = (__u16)~0; 4673762ff8fSGovindarajulu Varadarajan 46859346afeSJiri Pirko fsp->h_u.tcp_ip4_spec.pdst = n->keys.ports.dst; 4693762ff8fSGovindarajulu Varadarajan fsp->m_u.tcp_ip4_spec.pdst = (__u16)~0; 4703762ff8fSGovindarajulu Varadarajan 4713762ff8fSGovindarajulu Varadarajan fsp->ring_cookie = n->rq_id; 4723762ff8fSGovindarajulu Varadarajan 4733762ff8fSGovindarajulu Varadarajan return 0; 4743762ff8fSGovindarajulu Varadarajan } 4753762ff8fSGovindarajulu Varadarajan 4763762ff8fSGovindarajulu Varadarajan static int enic_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd, 4773762ff8fSGovindarajulu Varadarajan u32 *rule_locs) 4783762ff8fSGovindarajulu Varadarajan { 4793762ff8fSGovindarajulu Varadarajan struct enic *enic = netdev_priv(dev); 4803762ff8fSGovindarajulu Varadarajan int ret = 0; 4813762ff8fSGovindarajulu Varadarajan 4823762ff8fSGovindarajulu Varadarajan switch (cmd->cmd) { 4833762ff8fSGovindarajulu Varadarajan case ETHTOOL_GRXRINGS: 4843762ff8fSGovindarajulu Varadarajan cmd->data = enic->rq_count; 4853762ff8fSGovindarajulu Varadarajan break; 4863762ff8fSGovindarajulu Varadarajan case ETHTOOL_GRXCLSRLCNT: 4873762ff8fSGovindarajulu Varadarajan spin_lock_bh(&enic->rfs_h.lock); 4883762ff8fSGovindarajulu Varadarajan cmd->rule_cnt = enic->rfs_h.max - enic->rfs_h.free; 4893762ff8fSGovindarajulu Varadarajan cmd->data = enic->rfs_h.max; 4903762ff8fSGovindarajulu Varadarajan spin_unlock_bh(&enic->rfs_h.lock); 4913762ff8fSGovindarajulu Varadarajan break; 4923762ff8fSGovindarajulu Varadarajan case ETHTOOL_GRXCLSRLALL: 4933762ff8fSGovindarajulu Varadarajan spin_lock_bh(&enic->rfs_h.lock); 4943762ff8fSGovindarajulu Varadarajan ret = enic_grxclsrlall(enic, cmd, rule_locs); 4953762ff8fSGovindarajulu Varadarajan spin_unlock_bh(&enic->rfs_h.lock); 4963762ff8fSGovindarajulu Varadarajan break; 4973762ff8fSGovindarajulu Varadarajan case ETHTOOL_GRXCLSRULE: 4983762ff8fSGovindarajulu Varadarajan spin_lock_bh(&enic->rfs_h.lock); 4993762ff8fSGovindarajulu Varadarajan ret = enic_grxclsrule(enic, cmd); 5003762ff8fSGovindarajulu Varadarajan spin_unlock_bh(&enic->rfs_h.lock); 5013762ff8fSGovindarajulu Varadarajan break; 5023762ff8fSGovindarajulu Varadarajan default: 5033762ff8fSGovindarajulu Varadarajan ret = -EOPNOTSUPP; 5043762ff8fSGovindarajulu Varadarajan break; 5053762ff8fSGovindarajulu Varadarajan } 5063762ff8fSGovindarajulu Varadarajan 5073762ff8fSGovindarajulu Varadarajan return ret; 5083762ff8fSGovindarajulu Varadarajan } 5093762ff8fSGovindarajulu Varadarajan 510d4ad30b1SGovindarajulu Varadarajan static int enic_get_tunable(struct net_device *dev, 511d4ad30b1SGovindarajulu Varadarajan const struct ethtool_tunable *tuna, void *data) 512d4ad30b1SGovindarajulu Varadarajan { 513d4ad30b1SGovindarajulu Varadarajan struct enic *enic = netdev_priv(dev); 514d4ad30b1SGovindarajulu Varadarajan int ret = 0; 515d4ad30b1SGovindarajulu Varadarajan 516d4ad30b1SGovindarajulu Varadarajan switch (tuna->id) { 517d4ad30b1SGovindarajulu Varadarajan case ETHTOOL_RX_COPYBREAK: 518d4ad30b1SGovindarajulu Varadarajan *(u32 *)data = enic->rx_copybreak; 519d4ad30b1SGovindarajulu Varadarajan break; 520d4ad30b1SGovindarajulu Varadarajan default: 521d4ad30b1SGovindarajulu Varadarajan ret = -EINVAL; 522d4ad30b1SGovindarajulu Varadarajan break; 523d4ad30b1SGovindarajulu Varadarajan } 524d4ad30b1SGovindarajulu Varadarajan 525d4ad30b1SGovindarajulu Varadarajan return ret; 526d4ad30b1SGovindarajulu Varadarajan } 527d4ad30b1SGovindarajulu Varadarajan 528d4ad30b1SGovindarajulu Varadarajan static int enic_set_tunable(struct net_device *dev, 529d4ad30b1SGovindarajulu Varadarajan const struct ethtool_tunable *tuna, 530d4ad30b1SGovindarajulu Varadarajan const void *data) 531d4ad30b1SGovindarajulu Varadarajan { 532d4ad30b1SGovindarajulu Varadarajan struct enic *enic = netdev_priv(dev); 533d4ad30b1SGovindarajulu Varadarajan int ret = 0; 534d4ad30b1SGovindarajulu Varadarajan 535d4ad30b1SGovindarajulu Varadarajan switch (tuna->id) { 536d4ad30b1SGovindarajulu Varadarajan case ETHTOOL_RX_COPYBREAK: 537d4ad30b1SGovindarajulu Varadarajan enic->rx_copybreak = *(u32 *)data; 538d4ad30b1SGovindarajulu Varadarajan break; 539d4ad30b1SGovindarajulu Varadarajan default: 540d4ad30b1SGovindarajulu Varadarajan ret = -EINVAL; 541d4ad30b1SGovindarajulu Varadarajan break; 542d4ad30b1SGovindarajulu Varadarajan } 543d4ad30b1SGovindarajulu Varadarajan 544d4ad30b1SGovindarajulu Varadarajan return ret; 545d4ad30b1SGovindarajulu Varadarajan } 546d4ad30b1SGovindarajulu Varadarajan 5474f675eb2SGovindarajulu Varadarajan static u32 enic_get_rxfh_key_size(struct net_device *netdev) 5484f675eb2SGovindarajulu Varadarajan { 5494f675eb2SGovindarajulu Varadarajan return ENIC_RSS_LEN; 5504f675eb2SGovindarajulu Varadarajan } 5514f675eb2SGovindarajulu Varadarajan 5524f675eb2SGovindarajulu Varadarajan static int enic_get_rxfh(struct net_device *netdev, u32 *indir, u8 *hkey, 5534f675eb2SGovindarajulu Varadarajan u8 *hfunc) 5544f675eb2SGovindarajulu Varadarajan { 5554f675eb2SGovindarajulu Varadarajan struct enic *enic = netdev_priv(netdev); 5564f675eb2SGovindarajulu Varadarajan 5574f675eb2SGovindarajulu Varadarajan if (hkey) 5584f675eb2SGovindarajulu Varadarajan memcpy(hkey, enic->rss_key, ENIC_RSS_LEN); 5594f675eb2SGovindarajulu Varadarajan 5604f675eb2SGovindarajulu Varadarajan if (hfunc) 5614f675eb2SGovindarajulu Varadarajan *hfunc = ETH_RSS_HASH_TOP; 5624f675eb2SGovindarajulu Varadarajan 5634f675eb2SGovindarajulu Varadarajan return 0; 5644f675eb2SGovindarajulu Varadarajan } 5654f675eb2SGovindarajulu Varadarajan 5664f675eb2SGovindarajulu Varadarajan static int enic_set_rxfh(struct net_device *netdev, const u32 *indir, 5674f675eb2SGovindarajulu Varadarajan const u8 *hkey, const u8 hfunc) 5684f675eb2SGovindarajulu Varadarajan { 5694f675eb2SGovindarajulu Varadarajan struct enic *enic = netdev_priv(netdev); 5704f675eb2SGovindarajulu Varadarajan 5714f675eb2SGovindarajulu Varadarajan if ((hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) || 5724f675eb2SGovindarajulu Varadarajan indir) 5734f675eb2SGovindarajulu Varadarajan return -EINVAL; 5744f675eb2SGovindarajulu Varadarajan 5754f675eb2SGovindarajulu Varadarajan if (hkey) 5764f675eb2SGovindarajulu Varadarajan memcpy(enic->rss_key, hkey, ENIC_RSS_LEN); 5774f675eb2SGovindarajulu Varadarajan 5784f675eb2SGovindarajulu Varadarajan return __enic_set_rsskey(enic); 5794f675eb2SGovindarajulu Varadarajan } 5804f675eb2SGovindarajulu Varadarajan 581f13bbc2fSNeel Patel static const struct ethtool_ops enic_ethtool_ops = { 582f13bbc2fSNeel Patel .get_drvinfo = enic_get_drvinfo, 583f13bbc2fSNeel Patel .get_msglevel = enic_get_msglevel, 584f13bbc2fSNeel Patel .set_msglevel = enic_set_msglevel, 585f13bbc2fSNeel Patel .get_link = ethtool_op_get_link, 586f13bbc2fSNeel Patel .get_strings = enic_get_strings, 587ed519b74SParvi Kaustubhi .get_ringparam = enic_get_ringparam, 588ed519b74SParvi Kaustubhi .set_ringparam = enic_set_ringparam, 589f13bbc2fSNeel Patel .get_sset_count = enic_get_sset_count, 590f13bbc2fSNeel Patel .get_ethtool_stats = enic_get_ethtool_stats, 591f13bbc2fSNeel Patel .get_coalesce = enic_get_coalesce, 592f13bbc2fSNeel Patel .set_coalesce = enic_set_coalesce, 5933762ff8fSGovindarajulu Varadarajan .get_rxnfc = enic_get_rxnfc, 594d4ad30b1SGovindarajulu Varadarajan .get_tunable = enic_get_tunable, 595d4ad30b1SGovindarajulu Varadarajan .set_tunable = enic_set_tunable, 5964f675eb2SGovindarajulu Varadarajan .get_rxfh_key_size = enic_get_rxfh_key_size, 5974f675eb2SGovindarajulu Varadarajan .get_rxfh = enic_get_rxfh, 5984f675eb2SGovindarajulu Varadarajan .set_rxfh = enic_set_rxfh, 5997659f50cSPhilippe Reynes .get_link_ksettings = enic_get_ksettings, 600f13bbc2fSNeel Patel }; 601f13bbc2fSNeel Patel 602f13bbc2fSNeel Patel void enic_set_ethtool_ops(struct net_device *netdev) 603f13bbc2fSNeel Patel { 6047ad24ea4SWilfried Klaebe netdev->ethtool_ops = &enic_ethtool_ops; 605f13bbc2fSNeel Patel } 606