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 106f13bbc2fSNeel Patel static int enic_get_settings(struct net_device *netdev, 107f13bbc2fSNeel Patel struct ethtool_cmd *ecmd) 108f13bbc2fSNeel Patel { 109f13bbc2fSNeel Patel struct enic *enic = netdev_priv(netdev); 110f13bbc2fSNeel Patel 111f13bbc2fSNeel Patel ecmd->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE); 112f13bbc2fSNeel Patel ecmd->advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_FIBRE); 113f13bbc2fSNeel Patel ecmd->port = PORT_FIBRE; 114f13bbc2fSNeel Patel ecmd->transceiver = XCVR_EXTERNAL; 115f13bbc2fSNeel Patel 116f13bbc2fSNeel Patel if (netif_carrier_ok(netdev)) { 117f13bbc2fSNeel Patel ethtool_cmd_speed_set(ecmd, vnic_dev_port_speed(enic->vdev)); 118f13bbc2fSNeel Patel ecmd->duplex = DUPLEX_FULL; 119f13bbc2fSNeel Patel } else { 120537fae01SJiri Pirko ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN); 121537fae01SJiri Pirko ecmd->duplex = DUPLEX_UNKNOWN; 122f13bbc2fSNeel Patel } 123f13bbc2fSNeel Patel 124f13bbc2fSNeel Patel ecmd->autoneg = AUTONEG_DISABLE; 125f13bbc2fSNeel Patel 126f13bbc2fSNeel Patel return 0; 127f13bbc2fSNeel Patel } 128f13bbc2fSNeel Patel 129f13bbc2fSNeel Patel static void enic_get_drvinfo(struct net_device *netdev, 130f13bbc2fSNeel Patel struct ethtool_drvinfo *drvinfo) 131f13bbc2fSNeel Patel { 132f13bbc2fSNeel Patel struct enic *enic = netdev_priv(netdev); 133f13bbc2fSNeel Patel struct vnic_devcmd_fw_info *fw_info; 13419b596bdSGovindarajulu Varadarajan int err; 135f13bbc2fSNeel Patel 13619b596bdSGovindarajulu Varadarajan err = enic_dev_fw_info(enic, &fw_info); 13719b596bdSGovindarajulu Varadarajan /* return only when pci_zalloc_consistent fails in vnic_dev_fw_info 13819b596bdSGovindarajulu Varadarajan * For other failures, like devcmd failure, we return previously 13919b596bdSGovindarajulu Varadarajan * recorded info. 14019b596bdSGovindarajulu Varadarajan */ 14119b596bdSGovindarajulu Varadarajan if (err == -ENOMEM) 14219b596bdSGovindarajulu Varadarajan return; 143f13bbc2fSNeel Patel 144f13bbc2fSNeel Patel strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); 145f13bbc2fSNeel Patel strlcpy(drvinfo->version, DRV_VERSION, sizeof(drvinfo->version)); 146f13bbc2fSNeel Patel strlcpy(drvinfo->fw_version, fw_info->fw_version, 147f13bbc2fSNeel Patel sizeof(drvinfo->fw_version)); 148f13bbc2fSNeel Patel strlcpy(drvinfo->bus_info, pci_name(enic->pdev), 149f13bbc2fSNeel Patel sizeof(drvinfo->bus_info)); 150f13bbc2fSNeel Patel } 151f13bbc2fSNeel Patel 152f13bbc2fSNeel Patel static void enic_get_strings(struct net_device *netdev, u32 stringset, 153f13bbc2fSNeel Patel u8 *data) 154f13bbc2fSNeel Patel { 155f13bbc2fSNeel Patel unsigned int i; 156f13bbc2fSNeel Patel 157f13bbc2fSNeel Patel switch (stringset) { 158f13bbc2fSNeel Patel case ETH_SS_STATS: 159f13bbc2fSNeel Patel for (i = 0; i < enic_n_tx_stats; i++) { 160f13bbc2fSNeel Patel memcpy(data, enic_tx_stats[i].name, ETH_GSTRING_LEN); 161f13bbc2fSNeel Patel data += ETH_GSTRING_LEN; 162f13bbc2fSNeel Patel } 163f13bbc2fSNeel Patel for (i = 0; i < enic_n_rx_stats; i++) { 164f13bbc2fSNeel Patel memcpy(data, enic_rx_stats[i].name, ETH_GSTRING_LEN); 165f13bbc2fSNeel Patel data += ETH_GSTRING_LEN; 166f13bbc2fSNeel Patel } 16758feff07SGovindarajulu Varadarajan for (i = 0; i < enic_n_gen_stats; i++) { 16858feff07SGovindarajulu Varadarajan memcpy(data, enic_gen_stats[i].name, ETH_GSTRING_LEN); 16958feff07SGovindarajulu Varadarajan data += ETH_GSTRING_LEN; 17058feff07SGovindarajulu Varadarajan } 171f13bbc2fSNeel Patel break; 172f13bbc2fSNeel Patel } 173f13bbc2fSNeel Patel } 174f13bbc2fSNeel Patel 175f13bbc2fSNeel Patel static int enic_get_sset_count(struct net_device *netdev, int sset) 176f13bbc2fSNeel Patel { 177f13bbc2fSNeel Patel switch (sset) { 178f13bbc2fSNeel Patel case ETH_SS_STATS: 17958feff07SGovindarajulu Varadarajan return enic_n_tx_stats + enic_n_rx_stats + enic_n_gen_stats; 180f13bbc2fSNeel Patel default: 181f13bbc2fSNeel Patel return -EOPNOTSUPP; 182f13bbc2fSNeel Patel } 183f13bbc2fSNeel Patel } 184f13bbc2fSNeel Patel 185f13bbc2fSNeel Patel static void enic_get_ethtool_stats(struct net_device *netdev, 186f13bbc2fSNeel Patel struct ethtool_stats *stats, u64 *data) 187f13bbc2fSNeel Patel { 188f13bbc2fSNeel Patel struct enic *enic = netdev_priv(netdev); 189f13bbc2fSNeel Patel struct vnic_stats *vstats; 190f13bbc2fSNeel Patel unsigned int i; 19119b596bdSGovindarajulu Varadarajan int err; 192f13bbc2fSNeel Patel 19319b596bdSGovindarajulu Varadarajan err = enic_dev_stats_dump(enic, &vstats); 19419b596bdSGovindarajulu Varadarajan /* return only when pci_zalloc_consistent fails in vnic_dev_stats_dump 19519b596bdSGovindarajulu Varadarajan * For other failures, like devcmd failure, we return previously 19619b596bdSGovindarajulu Varadarajan * recorded stats. 19719b596bdSGovindarajulu Varadarajan */ 19819b596bdSGovindarajulu Varadarajan if (err == -ENOMEM) 19919b596bdSGovindarajulu Varadarajan return; 200f13bbc2fSNeel Patel 201f13bbc2fSNeel Patel for (i = 0; i < enic_n_tx_stats; i++) 202f13bbc2fSNeel Patel *(data++) = ((u64 *)&vstats->tx)[enic_tx_stats[i].index]; 203f13bbc2fSNeel Patel for (i = 0; i < enic_n_rx_stats; i++) 204f13bbc2fSNeel Patel *(data++) = ((u64 *)&vstats->rx)[enic_rx_stats[i].index]; 20558feff07SGovindarajulu Varadarajan for (i = 0; i < enic_n_gen_stats; i++) 20658feff07SGovindarajulu Varadarajan *(data++) = ((u64 *)&enic->gen_stats)[enic_gen_stats[i].index]; 207f13bbc2fSNeel Patel } 208f13bbc2fSNeel Patel 209f13bbc2fSNeel Patel static u32 enic_get_msglevel(struct net_device *netdev) 210f13bbc2fSNeel Patel { 211f13bbc2fSNeel Patel struct enic *enic = netdev_priv(netdev); 212f13bbc2fSNeel Patel return enic->msg_enable; 213f13bbc2fSNeel Patel } 214f13bbc2fSNeel Patel 215f13bbc2fSNeel Patel static void enic_set_msglevel(struct net_device *netdev, u32 value) 216f13bbc2fSNeel Patel { 217f13bbc2fSNeel Patel struct enic *enic = netdev_priv(netdev); 218f13bbc2fSNeel Patel enic->msg_enable = value; 219f13bbc2fSNeel Patel } 220f13bbc2fSNeel Patel 221f13bbc2fSNeel Patel static int enic_get_coalesce(struct net_device *netdev, 222f13bbc2fSNeel Patel struct ethtool_coalesce *ecmd) 223f13bbc2fSNeel Patel { 224f13bbc2fSNeel Patel struct enic *enic = netdev_priv(netdev); 2257c2ce6e6SSujith Sankar struct enic_rx_coal *rxcoal = &enic->rx_coalesce_setting; 226f13bbc2fSNeel Patel 227f13bbc2fSNeel Patel ecmd->tx_coalesce_usecs = enic->tx_coalesce_usecs; 228f13bbc2fSNeel Patel ecmd->rx_coalesce_usecs = enic->rx_coalesce_usecs; 2297c2ce6e6SSujith Sankar if (rxcoal->use_adaptive_rx_coalesce) 2307c2ce6e6SSujith Sankar ecmd->use_adaptive_rx_coalesce = 1; 2317c2ce6e6SSujith Sankar ecmd->rx_coalesce_usecs_low = rxcoal->small_pkt_range_start; 2327c2ce6e6SSujith Sankar ecmd->rx_coalesce_usecs_high = rxcoal->range_end; 233f13bbc2fSNeel Patel 234f13bbc2fSNeel Patel return 0; 235f13bbc2fSNeel Patel } 236f13bbc2fSNeel Patel 237f13bbc2fSNeel Patel static int enic_set_coalesce(struct net_device *netdev, 238f13bbc2fSNeel Patel struct ethtool_coalesce *ecmd) 239f13bbc2fSNeel Patel { 240f13bbc2fSNeel Patel struct enic *enic = netdev_priv(netdev); 241f13bbc2fSNeel Patel u32 tx_coalesce_usecs; 242f13bbc2fSNeel Patel u32 rx_coalesce_usecs; 2437c2ce6e6SSujith Sankar u32 rx_coalesce_usecs_low; 2447c2ce6e6SSujith Sankar u32 rx_coalesce_usecs_high; 2457c2ce6e6SSujith Sankar u32 coalesce_usecs_max; 246f13bbc2fSNeel Patel unsigned int i, intr; 2477c2ce6e6SSujith Sankar struct enic_rx_coal *rxcoal = &enic->rx_coalesce_setting; 248f13bbc2fSNeel Patel 2497c2ce6e6SSujith Sankar coalesce_usecs_max = vnic_dev_get_intr_coal_timer_max(enic->vdev); 250f13bbc2fSNeel Patel tx_coalesce_usecs = min_t(u32, ecmd->tx_coalesce_usecs, 2517c2ce6e6SSujith Sankar coalesce_usecs_max); 252f13bbc2fSNeel Patel rx_coalesce_usecs = min_t(u32, ecmd->rx_coalesce_usecs, 2537c2ce6e6SSujith Sankar coalesce_usecs_max); 2547c2ce6e6SSujith Sankar 2557c2ce6e6SSujith Sankar rx_coalesce_usecs_low = min_t(u32, ecmd->rx_coalesce_usecs_low, 2567c2ce6e6SSujith Sankar coalesce_usecs_max); 2577c2ce6e6SSujith Sankar rx_coalesce_usecs_high = min_t(u32, ecmd->rx_coalesce_usecs_high, 2587c2ce6e6SSujith Sankar coalesce_usecs_max); 259f13bbc2fSNeel Patel 260f13bbc2fSNeel Patel switch (vnic_dev_get_intr_mode(enic->vdev)) { 261f13bbc2fSNeel Patel case VNIC_DEV_INTR_MODE_INTX: 262f13bbc2fSNeel Patel if (tx_coalesce_usecs != rx_coalesce_usecs) 263f13bbc2fSNeel Patel return -EINVAL; 2647c2ce6e6SSujith Sankar if (ecmd->use_adaptive_rx_coalesce || 2657c2ce6e6SSujith Sankar ecmd->rx_coalesce_usecs_low || 2667c2ce6e6SSujith Sankar ecmd->rx_coalesce_usecs_high) 267a16a3361SGovindarajulu Varadarajan return -EINVAL; 268f13bbc2fSNeel Patel 269f13bbc2fSNeel Patel intr = enic_legacy_io_intr(); 270f13bbc2fSNeel Patel vnic_intr_coalescing_timer_set(&enic->intr[intr], 271f13bbc2fSNeel Patel tx_coalesce_usecs); 272f13bbc2fSNeel Patel break; 273f13bbc2fSNeel Patel case VNIC_DEV_INTR_MODE_MSI: 274f13bbc2fSNeel Patel if (tx_coalesce_usecs != rx_coalesce_usecs) 275f13bbc2fSNeel Patel return -EINVAL; 2767c2ce6e6SSujith Sankar if (ecmd->use_adaptive_rx_coalesce || 2777c2ce6e6SSujith Sankar ecmd->rx_coalesce_usecs_low || 2787c2ce6e6SSujith Sankar ecmd->rx_coalesce_usecs_high) 279a16a3361SGovindarajulu Varadarajan return -EINVAL; 280f13bbc2fSNeel Patel 281f13bbc2fSNeel Patel vnic_intr_coalescing_timer_set(&enic->intr[0], 282f13bbc2fSNeel Patel tx_coalesce_usecs); 283f13bbc2fSNeel Patel break; 284f13bbc2fSNeel Patel case VNIC_DEV_INTR_MODE_MSIX: 285a16a3361SGovindarajulu Varadarajan if (ecmd->rx_coalesce_usecs_high && 286a16a3361SGovindarajulu Varadarajan (rx_coalesce_usecs_high < 287a16a3361SGovindarajulu Varadarajan rx_coalesce_usecs_low + ENIC_AIC_LARGE_PKT_DIFF)) 288a16a3361SGovindarajulu Varadarajan return -EINVAL; 289a16a3361SGovindarajulu Varadarajan 290f13bbc2fSNeel Patel for (i = 0; i < enic->wq_count; i++) { 291f13bbc2fSNeel Patel intr = enic_msix_wq_intr(enic, i); 292f13bbc2fSNeel Patel vnic_intr_coalescing_timer_set(&enic->intr[intr], 293f13bbc2fSNeel Patel tx_coalesce_usecs); 294f13bbc2fSNeel Patel } 295f13bbc2fSNeel Patel 296a16a3361SGovindarajulu Varadarajan rxcoal->use_adaptive_rx_coalesce = 297a16a3361SGovindarajulu Varadarajan !!ecmd->use_adaptive_rx_coalesce; 298a16a3361SGovindarajulu Varadarajan if (!rxcoal->use_adaptive_rx_coalesce) 2997c2ce6e6SSujith Sankar enic_intr_coal_set_rx(enic, rx_coalesce_usecs); 300f13bbc2fSNeel Patel 3017c2ce6e6SSujith Sankar if (ecmd->rx_coalesce_usecs_high) { 3027c2ce6e6SSujith Sankar rxcoal->range_end = rx_coalesce_usecs_high; 3037c2ce6e6SSujith Sankar rxcoal->small_pkt_range_start = rx_coalesce_usecs_low; 3047c2ce6e6SSujith Sankar rxcoal->large_pkt_range_start = rx_coalesce_usecs_low + 3057c2ce6e6SSujith Sankar ENIC_AIC_LARGE_PKT_DIFF; 3067c2ce6e6SSujith Sankar } 307f13bbc2fSNeel Patel break; 308f13bbc2fSNeel Patel default: 309f13bbc2fSNeel Patel break; 310f13bbc2fSNeel Patel } 311f13bbc2fSNeel Patel 312f13bbc2fSNeel Patel enic->tx_coalesce_usecs = tx_coalesce_usecs; 313f13bbc2fSNeel Patel enic->rx_coalesce_usecs = rx_coalesce_usecs; 314f13bbc2fSNeel Patel 315f13bbc2fSNeel Patel return 0; 316f13bbc2fSNeel Patel } 317f13bbc2fSNeel Patel 3183762ff8fSGovindarajulu Varadarajan static int enic_grxclsrlall(struct enic *enic, struct ethtool_rxnfc *cmd, 3193762ff8fSGovindarajulu Varadarajan u32 *rule_locs) 3203762ff8fSGovindarajulu Varadarajan { 3213762ff8fSGovindarajulu Varadarajan int j, ret = 0, cnt = 0; 3223762ff8fSGovindarajulu Varadarajan 3233762ff8fSGovindarajulu Varadarajan cmd->data = enic->rfs_h.max - enic->rfs_h.free; 3243762ff8fSGovindarajulu Varadarajan for (j = 0; j < (1 << ENIC_RFS_FLW_BITSHIFT); j++) { 3253762ff8fSGovindarajulu Varadarajan struct hlist_head *hhead; 3263762ff8fSGovindarajulu Varadarajan struct hlist_node *tmp; 3273762ff8fSGovindarajulu Varadarajan struct enic_rfs_fltr_node *n; 3283762ff8fSGovindarajulu Varadarajan 3293762ff8fSGovindarajulu Varadarajan hhead = &enic->rfs_h.ht_head[j]; 3303762ff8fSGovindarajulu Varadarajan hlist_for_each_entry_safe(n, tmp, hhead, node) { 3313762ff8fSGovindarajulu Varadarajan if (cnt == cmd->rule_cnt) 3323762ff8fSGovindarajulu Varadarajan return -EMSGSIZE; 3333762ff8fSGovindarajulu Varadarajan rule_locs[cnt] = n->fltr_id; 3343762ff8fSGovindarajulu Varadarajan cnt++; 3353762ff8fSGovindarajulu Varadarajan } 3363762ff8fSGovindarajulu Varadarajan } 3373762ff8fSGovindarajulu Varadarajan cmd->rule_cnt = cnt; 3383762ff8fSGovindarajulu Varadarajan 3393762ff8fSGovindarajulu Varadarajan return ret; 3403762ff8fSGovindarajulu Varadarajan } 3413762ff8fSGovindarajulu Varadarajan 3423762ff8fSGovindarajulu Varadarajan static int enic_grxclsrule(struct enic *enic, struct ethtool_rxnfc *cmd) 3433762ff8fSGovindarajulu Varadarajan { 3443762ff8fSGovindarajulu Varadarajan struct ethtool_rx_flow_spec *fsp = 3453762ff8fSGovindarajulu Varadarajan (struct ethtool_rx_flow_spec *)&cmd->fs; 3463762ff8fSGovindarajulu Varadarajan struct enic_rfs_fltr_node *n; 3473762ff8fSGovindarajulu Varadarajan 3483762ff8fSGovindarajulu Varadarajan n = htbl_fltr_search(enic, (u16)fsp->location); 3493762ff8fSGovindarajulu Varadarajan if (!n) 3503762ff8fSGovindarajulu Varadarajan return -EINVAL; 3513762ff8fSGovindarajulu Varadarajan switch (n->keys.ip_proto) { 3523762ff8fSGovindarajulu Varadarajan case IPPROTO_TCP: 3533762ff8fSGovindarajulu Varadarajan fsp->flow_type = TCP_V4_FLOW; 3543762ff8fSGovindarajulu Varadarajan break; 3553762ff8fSGovindarajulu Varadarajan case IPPROTO_UDP: 3563762ff8fSGovindarajulu Varadarajan fsp->flow_type = UDP_V4_FLOW; 3573762ff8fSGovindarajulu Varadarajan break; 3583762ff8fSGovindarajulu Varadarajan default: 3593762ff8fSGovindarajulu Varadarajan return -EINVAL; 3603762ff8fSGovindarajulu Varadarajan break; 3613762ff8fSGovindarajulu Varadarajan } 3623762ff8fSGovindarajulu Varadarajan 3633762ff8fSGovindarajulu Varadarajan fsp->h_u.tcp_ip4_spec.ip4src = n->keys.src; 3643762ff8fSGovindarajulu Varadarajan fsp->m_u.tcp_ip4_spec.ip4src = (__u32)~0; 3653762ff8fSGovindarajulu Varadarajan 3663762ff8fSGovindarajulu Varadarajan fsp->h_u.tcp_ip4_spec.ip4dst = n->keys.dst; 3673762ff8fSGovindarajulu Varadarajan fsp->m_u.tcp_ip4_spec.ip4dst = (__u32)~0; 3683762ff8fSGovindarajulu Varadarajan 3693762ff8fSGovindarajulu Varadarajan fsp->h_u.tcp_ip4_spec.psrc = n->keys.port16[0]; 3703762ff8fSGovindarajulu Varadarajan fsp->m_u.tcp_ip4_spec.psrc = (__u16)~0; 3713762ff8fSGovindarajulu Varadarajan 3723762ff8fSGovindarajulu Varadarajan fsp->h_u.tcp_ip4_spec.pdst = n->keys.port16[1]; 3733762ff8fSGovindarajulu Varadarajan fsp->m_u.tcp_ip4_spec.pdst = (__u16)~0; 3743762ff8fSGovindarajulu Varadarajan 3753762ff8fSGovindarajulu Varadarajan fsp->ring_cookie = n->rq_id; 3763762ff8fSGovindarajulu Varadarajan 3773762ff8fSGovindarajulu Varadarajan return 0; 3783762ff8fSGovindarajulu Varadarajan } 3793762ff8fSGovindarajulu Varadarajan 3803762ff8fSGovindarajulu Varadarajan static int enic_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd, 3813762ff8fSGovindarajulu Varadarajan u32 *rule_locs) 3823762ff8fSGovindarajulu Varadarajan { 3833762ff8fSGovindarajulu Varadarajan struct enic *enic = netdev_priv(dev); 3843762ff8fSGovindarajulu Varadarajan int ret = 0; 3853762ff8fSGovindarajulu Varadarajan 3863762ff8fSGovindarajulu Varadarajan switch (cmd->cmd) { 3873762ff8fSGovindarajulu Varadarajan case ETHTOOL_GRXRINGS: 3883762ff8fSGovindarajulu Varadarajan cmd->data = enic->rq_count; 3893762ff8fSGovindarajulu Varadarajan break; 3903762ff8fSGovindarajulu Varadarajan case ETHTOOL_GRXCLSRLCNT: 3913762ff8fSGovindarajulu Varadarajan spin_lock_bh(&enic->rfs_h.lock); 3923762ff8fSGovindarajulu Varadarajan cmd->rule_cnt = enic->rfs_h.max - enic->rfs_h.free; 3933762ff8fSGovindarajulu Varadarajan cmd->data = enic->rfs_h.max; 3943762ff8fSGovindarajulu Varadarajan spin_unlock_bh(&enic->rfs_h.lock); 3953762ff8fSGovindarajulu Varadarajan break; 3963762ff8fSGovindarajulu Varadarajan case ETHTOOL_GRXCLSRLALL: 3973762ff8fSGovindarajulu Varadarajan spin_lock_bh(&enic->rfs_h.lock); 3983762ff8fSGovindarajulu Varadarajan ret = enic_grxclsrlall(enic, cmd, rule_locs); 3993762ff8fSGovindarajulu Varadarajan spin_unlock_bh(&enic->rfs_h.lock); 4003762ff8fSGovindarajulu Varadarajan break; 4013762ff8fSGovindarajulu Varadarajan case ETHTOOL_GRXCLSRULE: 4023762ff8fSGovindarajulu Varadarajan spin_lock_bh(&enic->rfs_h.lock); 4033762ff8fSGovindarajulu Varadarajan ret = enic_grxclsrule(enic, cmd); 4043762ff8fSGovindarajulu Varadarajan spin_unlock_bh(&enic->rfs_h.lock); 4053762ff8fSGovindarajulu Varadarajan break; 4063762ff8fSGovindarajulu Varadarajan default: 4073762ff8fSGovindarajulu Varadarajan ret = -EOPNOTSUPP; 4083762ff8fSGovindarajulu Varadarajan break; 4093762ff8fSGovindarajulu Varadarajan } 4103762ff8fSGovindarajulu Varadarajan 4113762ff8fSGovindarajulu Varadarajan return ret; 4123762ff8fSGovindarajulu Varadarajan } 4133762ff8fSGovindarajulu Varadarajan 414d4ad30b1SGovindarajulu Varadarajan static int enic_get_tunable(struct net_device *dev, 415d4ad30b1SGovindarajulu Varadarajan const struct ethtool_tunable *tuna, void *data) 416d4ad30b1SGovindarajulu Varadarajan { 417d4ad30b1SGovindarajulu Varadarajan struct enic *enic = netdev_priv(dev); 418d4ad30b1SGovindarajulu Varadarajan int ret = 0; 419d4ad30b1SGovindarajulu Varadarajan 420d4ad30b1SGovindarajulu Varadarajan switch (tuna->id) { 421d4ad30b1SGovindarajulu Varadarajan case ETHTOOL_RX_COPYBREAK: 422d4ad30b1SGovindarajulu Varadarajan *(u32 *)data = enic->rx_copybreak; 423d4ad30b1SGovindarajulu Varadarajan break; 424d4ad30b1SGovindarajulu Varadarajan default: 425d4ad30b1SGovindarajulu Varadarajan ret = -EINVAL; 426d4ad30b1SGovindarajulu Varadarajan break; 427d4ad30b1SGovindarajulu Varadarajan } 428d4ad30b1SGovindarajulu Varadarajan 429d4ad30b1SGovindarajulu Varadarajan return ret; 430d4ad30b1SGovindarajulu Varadarajan } 431d4ad30b1SGovindarajulu Varadarajan 432d4ad30b1SGovindarajulu Varadarajan static int enic_set_tunable(struct net_device *dev, 433d4ad30b1SGovindarajulu Varadarajan const struct ethtool_tunable *tuna, 434d4ad30b1SGovindarajulu Varadarajan const void *data) 435d4ad30b1SGovindarajulu Varadarajan { 436d4ad30b1SGovindarajulu Varadarajan struct enic *enic = netdev_priv(dev); 437d4ad30b1SGovindarajulu Varadarajan int ret = 0; 438d4ad30b1SGovindarajulu Varadarajan 439d4ad30b1SGovindarajulu Varadarajan switch (tuna->id) { 440d4ad30b1SGovindarajulu Varadarajan case ETHTOOL_RX_COPYBREAK: 441d4ad30b1SGovindarajulu Varadarajan enic->rx_copybreak = *(u32 *)data; 442d4ad30b1SGovindarajulu Varadarajan break; 443d4ad30b1SGovindarajulu Varadarajan default: 444d4ad30b1SGovindarajulu Varadarajan ret = -EINVAL; 445d4ad30b1SGovindarajulu Varadarajan break; 446d4ad30b1SGovindarajulu Varadarajan } 447d4ad30b1SGovindarajulu Varadarajan 448d4ad30b1SGovindarajulu Varadarajan return ret; 449d4ad30b1SGovindarajulu Varadarajan } 450d4ad30b1SGovindarajulu Varadarajan 4514f675eb2SGovindarajulu Varadarajan static u32 enic_get_rxfh_key_size(struct net_device *netdev) 4524f675eb2SGovindarajulu Varadarajan { 4534f675eb2SGovindarajulu Varadarajan return ENIC_RSS_LEN; 4544f675eb2SGovindarajulu Varadarajan } 4554f675eb2SGovindarajulu Varadarajan 4564f675eb2SGovindarajulu Varadarajan static int enic_get_rxfh(struct net_device *netdev, u32 *indir, u8 *hkey, 4574f675eb2SGovindarajulu Varadarajan u8 *hfunc) 4584f675eb2SGovindarajulu Varadarajan { 4594f675eb2SGovindarajulu Varadarajan struct enic *enic = netdev_priv(netdev); 4604f675eb2SGovindarajulu Varadarajan 4614f675eb2SGovindarajulu Varadarajan if (hkey) 4624f675eb2SGovindarajulu Varadarajan memcpy(hkey, enic->rss_key, ENIC_RSS_LEN); 4634f675eb2SGovindarajulu Varadarajan 4644f675eb2SGovindarajulu Varadarajan if (hfunc) 4654f675eb2SGovindarajulu Varadarajan *hfunc = ETH_RSS_HASH_TOP; 4664f675eb2SGovindarajulu Varadarajan 4674f675eb2SGovindarajulu Varadarajan return 0; 4684f675eb2SGovindarajulu Varadarajan } 4694f675eb2SGovindarajulu Varadarajan 4704f675eb2SGovindarajulu Varadarajan static int enic_set_rxfh(struct net_device *netdev, const u32 *indir, 4714f675eb2SGovindarajulu Varadarajan const u8 *hkey, const u8 hfunc) 4724f675eb2SGovindarajulu Varadarajan { 4734f675eb2SGovindarajulu Varadarajan struct enic *enic = netdev_priv(netdev); 4744f675eb2SGovindarajulu Varadarajan 4754f675eb2SGovindarajulu Varadarajan if ((hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) || 4764f675eb2SGovindarajulu Varadarajan indir) 4774f675eb2SGovindarajulu Varadarajan return -EINVAL; 4784f675eb2SGovindarajulu Varadarajan 4794f675eb2SGovindarajulu Varadarajan if (hkey) 4804f675eb2SGovindarajulu Varadarajan memcpy(enic->rss_key, hkey, ENIC_RSS_LEN); 4814f675eb2SGovindarajulu Varadarajan 4824f675eb2SGovindarajulu Varadarajan return __enic_set_rsskey(enic); 4834f675eb2SGovindarajulu Varadarajan } 4844f675eb2SGovindarajulu Varadarajan 485f13bbc2fSNeel Patel static const struct ethtool_ops enic_ethtool_ops = { 486f13bbc2fSNeel Patel .get_settings = enic_get_settings, 487f13bbc2fSNeel Patel .get_drvinfo = enic_get_drvinfo, 488f13bbc2fSNeel Patel .get_msglevel = enic_get_msglevel, 489f13bbc2fSNeel Patel .set_msglevel = enic_set_msglevel, 490f13bbc2fSNeel Patel .get_link = ethtool_op_get_link, 491f13bbc2fSNeel Patel .get_strings = enic_get_strings, 492f13bbc2fSNeel Patel .get_sset_count = enic_get_sset_count, 493f13bbc2fSNeel Patel .get_ethtool_stats = enic_get_ethtool_stats, 494f13bbc2fSNeel Patel .get_coalesce = enic_get_coalesce, 495f13bbc2fSNeel Patel .set_coalesce = enic_set_coalesce, 4963762ff8fSGovindarajulu Varadarajan .get_rxnfc = enic_get_rxnfc, 497d4ad30b1SGovindarajulu Varadarajan .get_tunable = enic_get_tunable, 498d4ad30b1SGovindarajulu Varadarajan .set_tunable = enic_set_tunable, 4994f675eb2SGovindarajulu Varadarajan .get_rxfh_key_size = enic_get_rxfh_key_size, 5004f675eb2SGovindarajulu Varadarajan .get_rxfh = enic_get_rxfh, 5014f675eb2SGovindarajulu Varadarajan .set_rxfh = enic_set_rxfh, 502f13bbc2fSNeel Patel }; 503f13bbc2fSNeel Patel 504f13bbc2fSNeel Patel void enic_set_ethtool_ops(struct net_device *netdev) 505f13bbc2fSNeel Patel { 5067ad24ea4SWilfried Klaebe netdev->ethtool_ops = &enic_ethtool_ops; 507f13bbc2fSNeel Patel } 508