Sunil Goutham | 4863dea | 2015-05-26 19:20:15 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 Cavium, Inc. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of version 2 of the GNU General Public License |
| 6 | * as published by the Free Software Foundation. |
| 7 | */ |
| 8 | |
| 9 | /* ETHTOOL Support for VNIC_VF Device*/ |
| 10 | |
| 11 | #include <linux/pci.h> |
| 12 | |
| 13 | #include "nic_reg.h" |
| 14 | #include "nic.h" |
| 15 | #include "nicvf_queues.h" |
| 16 | #include "q_struct.h" |
| 17 | #include "thunder_bgx.h" |
| 18 | |
| 19 | #define DRV_NAME "thunder-nicvf" |
| 20 | #define DRV_VERSION "1.0" |
| 21 | |
| 22 | struct nicvf_stat { |
| 23 | char name[ETH_GSTRING_LEN]; |
| 24 | unsigned int index; |
| 25 | }; |
| 26 | |
| 27 | #define NICVF_HW_STAT(stat) { \ |
| 28 | .name = #stat, \ |
| 29 | .index = offsetof(struct nicvf_hw_stats, stat) / sizeof(u64), \ |
| 30 | } |
| 31 | |
| 32 | #define NICVF_DRV_STAT(stat) { \ |
| 33 | .name = #stat, \ |
| 34 | .index = offsetof(struct nicvf_drv_stats, stat) / sizeof(u64), \ |
| 35 | } |
| 36 | |
| 37 | static const struct nicvf_stat nicvf_hw_stats[] = { |
| 38 | NICVF_HW_STAT(rx_bytes_ok), |
| 39 | NICVF_HW_STAT(rx_ucast_frames_ok), |
| 40 | NICVF_HW_STAT(rx_bcast_frames_ok), |
| 41 | NICVF_HW_STAT(rx_mcast_frames_ok), |
| 42 | NICVF_HW_STAT(rx_fcs_errors), |
| 43 | NICVF_HW_STAT(rx_l2_errors), |
| 44 | NICVF_HW_STAT(rx_drop_red), |
| 45 | NICVF_HW_STAT(rx_drop_red_bytes), |
| 46 | NICVF_HW_STAT(rx_drop_overrun), |
| 47 | NICVF_HW_STAT(rx_drop_overrun_bytes), |
| 48 | NICVF_HW_STAT(rx_drop_bcast), |
| 49 | NICVF_HW_STAT(rx_drop_mcast), |
| 50 | NICVF_HW_STAT(rx_drop_l3_bcast), |
| 51 | NICVF_HW_STAT(rx_drop_l3_mcast), |
| 52 | NICVF_HW_STAT(tx_bytes_ok), |
| 53 | NICVF_HW_STAT(tx_ucast_frames_ok), |
| 54 | NICVF_HW_STAT(tx_bcast_frames_ok), |
| 55 | NICVF_HW_STAT(tx_mcast_frames_ok), |
| 56 | }; |
| 57 | |
| 58 | static const struct nicvf_stat nicvf_drv_stats[] = { |
| 59 | NICVF_DRV_STAT(rx_frames_ok), |
| 60 | NICVF_DRV_STAT(rx_frames_64), |
| 61 | NICVF_DRV_STAT(rx_frames_127), |
| 62 | NICVF_DRV_STAT(rx_frames_255), |
| 63 | NICVF_DRV_STAT(rx_frames_511), |
| 64 | NICVF_DRV_STAT(rx_frames_1023), |
| 65 | NICVF_DRV_STAT(rx_frames_1518), |
| 66 | NICVF_DRV_STAT(rx_frames_jumbo), |
| 67 | NICVF_DRV_STAT(rx_drops), |
| 68 | NICVF_DRV_STAT(tx_frames_ok), |
| 69 | NICVF_DRV_STAT(tx_busy), |
| 70 | NICVF_DRV_STAT(tx_tso), |
| 71 | NICVF_DRV_STAT(tx_drops), |
| 72 | }; |
| 73 | |
| 74 | static const struct nicvf_stat nicvf_queue_stats[] = { |
| 75 | { "bytes", 0 }, |
| 76 | { "frames", 1 }, |
| 77 | }; |
| 78 | |
| 79 | static const unsigned int nicvf_n_hw_stats = ARRAY_SIZE(nicvf_hw_stats); |
| 80 | static const unsigned int nicvf_n_drv_stats = ARRAY_SIZE(nicvf_drv_stats); |
| 81 | static const unsigned int nicvf_n_queue_stats = ARRAY_SIZE(nicvf_queue_stats); |
| 82 | |
| 83 | static int nicvf_get_settings(struct net_device *netdev, |
| 84 | struct ethtool_cmd *cmd) |
| 85 | { |
| 86 | struct nicvf *nic = netdev_priv(netdev); |
| 87 | |
| 88 | cmd->supported = 0; |
| 89 | cmd->transceiver = XCVR_EXTERNAL; |
| 90 | if (nic->speed <= 1000) { |
| 91 | cmd->port = PORT_MII; |
| 92 | cmd->autoneg = AUTONEG_ENABLE; |
| 93 | } else { |
| 94 | cmd->port = PORT_FIBRE; |
| 95 | cmd->autoneg = AUTONEG_DISABLE; |
| 96 | } |
| 97 | cmd->duplex = nic->duplex; |
| 98 | ethtool_cmd_speed_set(cmd, nic->speed); |
| 99 | |
| 100 | return 0; |
| 101 | } |
| 102 | |
| 103 | static void nicvf_get_drvinfo(struct net_device *netdev, |
| 104 | struct ethtool_drvinfo *info) |
| 105 | { |
| 106 | struct nicvf *nic = netdev_priv(netdev); |
| 107 | |
| 108 | strlcpy(info->driver, DRV_NAME, sizeof(info->driver)); |
| 109 | strlcpy(info->version, DRV_VERSION, sizeof(info->version)); |
| 110 | strlcpy(info->bus_info, pci_name(nic->pdev), sizeof(info->bus_info)); |
| 111 | } |
| 112 | |
| 113 | static u32 nicvf_get_msglevel(struct net_device *netdev) |
| 114 | { |
| 115 | struct nicvf *nic = netdev_priv(netdev); |
| 116 | |
| 117 | return nic->msg_enable; |
| 118 | } |
| 119 | |
| 120 | static void nicvf_set_msglevel(struct net_device *netdev, u32 lvl) |
| 121 | { |
| 122 | struct nicvf *nic = netdev_priv(netdev); |
| 123 | |
| 124 | nic->msg_enable = lvl; |
| 125 | } |
| 126 | |
| 127 | static void nicvf_get_strings(struct net_device *netdev, u32 sset, u8 *data) |
| 128 | { |
| 129 | int stats, qidx; |
| 130 | |
| 131 | if (sset != ETH_SS_STATS) |
| 132 | return; |
| 133 | |
| 134 | for (stats = 0; stats < nicvf_n_hw_stats; stats++) { |
| 135 | memcpy(data, nicvf_hw_stats[stats].name, ETH_GSTRING_LEN); |
| 136 | data += ETH_GSTRING_LEN; |
| 137 | } |
| 138 | |
| 139 | for (stats = 0; stats < nicvf_n_drv_stats; stats++) { |
| 140 | memcpy(data, nicvf_drv_stats[stats].name, ETH_GSTRING_LEN); |
| 141 | data += ETH_GSTRING_LEN; |
| 142 | } |
| 143 | |
| 144 | for (qidx = 0; qidx < MAX_RCV_QUEUES_PER_QS; qidx++) { |
| 145 | for (stats = 0; stats < nicvf_n_queue_stats; stats++) { |
| 146 | sprintf(data, "rxq%d: %s", qidx, |
| 147 | nicvf_queue_stats[stats].name); |
| 148 | data += ETH_GSTRING_LEN; |
| 149 | } |
| 150 | } |
| 151 | |
| 152 | for (qidx = 0; qidx < MAX_SND_QUEUES_PER_QS; qidx++) { |
| 153 | for (stats = 0; stats < nicvf_n_queue_stats; stats++) { |
| 154 | sprintf(data, "txq%d: %s", qidx, |
| 155 | nicvf_queue_stats[stats].name); |
| 156 | data += ETH_GSTRING_LEN; |
| 157 | } |
| 158 | } |
| 159 | |
| 160 | for (stats = 0; stats < BGX_RX_STATS_COUNT; stats++) { |
| 161 | sprintf(data, "bgx_rxstat%d: ", stats); |
| 162 | data += ETH_GSTRING_LEN; |
| 163 | } |
| 164 | |
| 165 | for (stats = 0; stats < BGX_TX_STATS_COUNT; stats++) { |
| 166 | sprintf(data, "bgx_txstat%d: ", stats); |
| 167 | data += ETH_GSTRING_LEN; |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | static int nicvf_get_sset_count(struct net_device *netdev, int sset) |
| 172 | { |
| 173 | if (sset != ETH_SS_STATS) |
| 174 | return -EINVAL; |
| 175 | |
| 176 | return nicvf_n_hw_stats + nicvf_n_drv_stats + |
| 177 | (nicvf_n_queue_stats * |
| 178 | (MAX_RCV_QUEUES_PER_QS + MAX_SND_QUEUES_PER_QS)) + |
| 179 | BGX_RX_STATS_COUNT + BGX_TX_STATS_COUNT; |
| 180 | } |
| 181 | |
| 182 | static void nicvf_get_ethtool_stats(struct net_device *netdev, |
| 183 | struct ethtool_stats *stats, u64 *data) |
| 184 | { |
| 185 | struct nicvf *nic = netdev_priv(netdev); |
| 186 | int stat, qidx; |
| 187 | |
| 188 | nicvf_update_stats(nic); |
| 189 | |
| 190 | /* Update LMAC stats */ |
| 191 | nicvf_update_lmac_stats(nic); |
| 192 | |
| 193 | for (stat = 0; stat < nicvf_n_hw_stats; stat++) |
| 194 | *(data++) = ((u64 *)&nic->stats) |
| 195 | [nicvf_hw_stats[stat].index]; |
| 196 | for (stat = 0; stat < nicvf_n_drv_stats; stat++) |
| 197 | *(data++) = ((u64 *)&nic->drv_stats) |
| 198 | [nicvf_drv_stats[stat].index]; |
| 199 | |
| 200 | for (qidx = 0; qidx < MAX_RCV_QUEUES_PER_QS; qidx++) { |
| 201 | for (stat = 0; stat < nicvf_n_queue_stats; stat++) |
| 202 | *(data++) = ((u64 *)&nic->qs->rq[qidx].stats) |
| 203 | [nicvf_queue_stats[stat].index]; |
| 204 | } |
| 205 | |
| 206 | for (qidx = 0; qidx < MAX_SND_QUEUES_PER_QS; qidx++) { |
| 207 | for (stat = 0; stat < nicvf_n_queue_stats; stat++) |
| 208 | *(data++) = ((u64 *)&nic->qs->sq[qidx].stats) |
| 209 | [nicvf_queue_stats[stat].index]; |
| 210 | } |
| 211 | |
| 212 | for (stat = 0; stat < BGX_RX_STATS_COUNT; stat++) |
| 213 | *(data++) = nic->bgx_stats.rx_stats[stat]; |
| 214 | for (stat = 0; stat < BGX_TX_STATS_COUNT; stat++) |
| 215 | *(data++) = nic->bgx_stats.tx_stats[stat]; |
| 216 | } |
| 217 | |
| 218 | static int nicvf_get_regs_len(struct net_device *dev) |
| 219 | { |
| 220 | return sizeof(u64) * NIC_VF_REG_COUNT; |
| 221 | } |
| 222 | |
| 223 | static void nicvf_get_regs(struct net_device *dev, |
| 224 | struct ethtool_regs *regs, void *reg) |
| 225 | { |
| 226 | struct nicvf *nic = netdev_priv(dev); |
| 227 | u64 *p = (u64 *)reg; |
| 228 | u64 reg_offset; |
| 229 | int mbox, key, stat, q; |
| 230 | int i = 0; |
| 231 | |
| 232 | regs->version = 0; |
| 233 | memset(p, 0, NIC_VF_REG_COUNT); |
| 234 | |
| 235 | p[i++] = nicvf_reg_read(nic, NIC_VNIC_CFG); |
| 236 | /* Mailbox registers */ |
| 237 | for (mbox = 0; mbox < NIC_PF_VF_MAILBOX_SIZE; mbox++) |
| 238 | p[i++] = nicvf_reg_read(nic, |
| 239 | NIC_VF_PF_MAILBOX_0_1 | (mbox << 3)); |
| 240 | |
| 241 | p[i++] = nicvf_reg_read(nic, NIC_VF_INT); |
| 242 | p[i++] = nicvf_reg_read(nic, NIC_VF_INT_W1S); |
| 243 | p[i++] = nicvf_reg_read(nic, NIC_VF_ENA_W1C); |
| 244 | p[i++] = nicvf_reg_read(nic, NIC_VF_ENA_W1S); |
| 245 | p[i++] = nicvf_reg_read(nic, NIC_VNIC_RSS_CFG); |
| 246 | |
| 247 | for (key = 0; key < RSS_HASH_KEY_SIZE; key++) |
| 248 | p[i++] = nicvf_reg_read(nic, NIC_VNIC_RSS_KEY_0_4 | (key << 3)); |
| 249 | |
| 250 | /* Tx/Rx statistics */ |
| 251 | for (stat = 0; stat < TX_STATS_ENUM_LAST; stat++) |
| 252 | p[i++] = nicvf_reg_read(nic, |
| 253 | NIC_VNIC_TX_STAT_0_4 | (stat << 3)); |
| 254 | |
| 255 | for (i = 0; i < RX_STATS_ENUM_LAST; i++) |
| 256 | p[i++] = nicvf_reg_read(nic, |
| 257 | NIC_VNIC_RX_STAT_0_13 | (stat << 3)); |
| 258 | |
| 259 | p[i++] = nicvf_reg_read(nic, NIC_QSET_RQ_GEN_CFG); |
| 260 | |
| 261 | /* All completion queue's registers */ |
| 262 | for (q = 0; q < MAX_CMP_QUEUES_PER_QS; q++) { |
| 263 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_CFG, q); |
| 264 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_CFG2, q); |
| 265 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_THRESH, q); |
| 266 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_BASE, q); |
| 267 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_HEAD, q); |
| 268 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_TAIL, q); |
| 269 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_DOOR, q); |
| 270 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_STATUS, q); |
| 271 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_STATUS2, q); |
| 272 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_DEBUG, q); |
| 273 | } |
| 274 | |
| 275 | /* All receive queue's registers */ |
| 276 | for (q = 0; q < MAX_RCV_QUEUES_PER_QS; q++) { |
| 277 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RQ_0_7_CFG, q); |
| 278 | p[i++] = nicvf_queue_reg_read(nic, |
| 279 | NIC_QSET_RQ_0_7_STAT_0_1, q); |
| 280 | reg_offset = NIC_QSET_RQ_0_7_STAT_0_1 | (1 << 3); |
| 281 | p[i++] = nicvf_queue_reg_read(nic, reg_offset, q); |
| 282 | } |
| 283 | |
| 284 | for (q = 0; q < MAX_SND_QUEUES_PER_QS; q++) { |
| 285 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_CFG, q); |
| 286 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_THRESH, q); |
| 287 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_BASE, q); |
| 288 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_HEAD, q); |
| 289 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_TAIL, q); |
| 290 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_DOOR, q); |
| 291 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_STATUS, q); |
| 292 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_DEBUG, q); |
| 293 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_CNM_CHG, q); |
| 294 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_STAT_0_1, q); |
| 295 | reg_offset = NIC_QSET_SQ_0_7_STAT_0_1 | (1 << 3); |
| 296 | p[i++] = nicvf_queue_reg_read(nic, reg_offset, q); |
| 297 | } |
| 298 | |
| 299 | for (q = 0; q < MAX_RCV_BUF_DESC_RINGS_PER_QS; q++) { |
| 300 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_CFG, q); |
| 301 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_THRESH, q); |
| 302 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_BASE, q); |
| 303 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_HEAD, q); |
| 304 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_TAIL, q); |
| 305 | p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_DOOR, q); |
| 306 | p[i++] = nicvf_queue_reg_read(nic, |
| 307 | NIC_QSET_RBDR_0_1_STATUS0, q); |
| 308 | p[i++] = nicvf_queue_reg_read(nic, |
| 309 | NIC_QSET_RBDR_0_1_STATUS1, q); |
| 310 | reg_offset = NIC_QSET_RBDR_0_1_PREFETCH_STATUS; |
| 311 | p[i++] = nicvf_queue_reg_read(nic, reg_offset, q); |
| 312 | } |
| 313 | } |
| 314 | |
| 315 | static int nicvf_get_coalesce(struct net_device *netdev, |
| 316 | struct ethtool_coalesce *cmd) |
| 317 | { |
| 318 | struct nicvf *nic = netdev_priv(netdev); |
| 319 | |
| 320 | cmd->rx_coalesce_usecs = nic->cq_coalesce_usecs; |
| 321 | return 0; |
| 322 | } |
| 323 | |
| 324 | static void nicvf_get_ringparam(struct net_device *netdev, |
| 325 | struct ethtool_ringparam *ring) |
| 326 | { |
| 327 | struct nicvf *nic = netdev_priv(netdev); |
| 328 | struct queue_set *qs = nic->qs; |
| 329 | |
| 330 | ring->rx_max_pending = MAX_RCV_BUF_COUNT; |
| 331 | ring->rx_pending = qs->rbdr_len; |
| 332 | ring->tx_max_pending = MAX_SND_QUEUE_LEN; |
| 333 | ring->tx_pending = qs->sq_len; |
| 334 | } |
| 335 | |
| 336 | static int nicvf_get_rss_hash_opts(struct nicvf *nic, |
| 337 | struct ethtool_rxnfc *info) |
| 338 | { |
| 339 | info->data = 0; |
| 340 | |
| 341 | switch (info->flow_type) { |
| 342 | case TCP_V4_FLOW: |
| 343 | case TCP_V6_FLOW: |
| 344 | case UDP_V4_FLOW: |
| 345 | case UDP_V6_FLOW: |
| 346 | case SCTP_V4_FLOW: |
| 347 | case SCTP_V6_FLOW: |
| 348 | info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; |
| 349 | case IPV4_FLOW: |
| 350 | case IPV6_FLOW: |
| 351 | info->data |= RXH_IP_SRC | RXH_IP_DST; |
| 352 | break; |
| 353 | default: |
| 354 | return -EINVAL; |
| 355 | } |
| 356 | |
| 357 | return 0; |
| 358 | } |
| 359 | |
| 360 | static int nicvf_get_rxnfc(struct net_device *dev, |
| 361 | struct ethtool_rxnfc *info, u32 *rules) |
| 362 | { |
| 363 | struct nicvf *nic = netdev_priv(dev); |
| 364 | int ret = -EOPNOTSUPP; |
| 365 | |
| 366 | switch (info->cmd) { |
| 367 | case ETHTOOL_GRXRINGS: |
| 368 | info->data = nic->qs->rq_cnt; |
| 369 | ret = 0; |
| 370 | break; |
| 371 | case ETHTOOL_GRXFH: |
| 372 | return nicvf_get_rss_hash_opts(nic, info); |
| 373 | default: |
| 374 | break; |
| 375 | } |
| 376 | return ret; |
| 377 | } |
| 378 | |
| 379 | static int nicvf_set_rss_hash_opts(struct nicvf *nic, |
| 380 | struct ethtool_rxnfc *info) |
| 381 | { |
| 382 | struct nicvf_rss_info *rss = &nic->rss_info; |
| 383 | u64 rss_cfg = nicvf_reg_read(nic, NIC_VNIC_RSS_CFG); |
| 384 | |
| 385 | if (!rss->enable) |
| 386 | netdev_err(nic->netdev, |
| 387 | "RSS is disabled, hash cannot be set\n"); |
| 388 | |
| 389 | netdev_info(nic->netdev, "Set RSS flow type = %d, data = %lld\n", |
| 390 | info->flow_type, info->data); |
| 391 | |
| 392 | if (!(info->data & RXH_IP_SRC) || !(info->data & RXH_IP_DST)) |
| 393 | return -EINVAL; |
| 394 | |
| 395 | switch (info->flow_type) { |
| 396 | case TCP_V4_FLOW: |
| 397 | case TCP_V6_FLOW: |
| 398 | switch (info->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { |
| 399 | case 0: |
| 400 | rss_cfg &= ~(1ULL << RSS_HASH_TCP); |
| 401 | break; |
| 402 | case (RXH_L4_B_0_1 | RXH_L4_B_2_3): |
| 403 | rss_cfg |= (1ULL << RSS_HASH_TCP); |
| 404 | break; |
| 405 | default: |
| 406 | return -EINVAL; |
| 407 | } |
| 408 | break; |
| 409 | case UDP_V4_FLOW: |
| 410 | case UDP_V6_FLOW: |
| 411 | switch (info->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { |
| 412 | case 0: |
| 413 | rss_cfg &= ~(1ULL << RSS_HASH_UDP); |
| 414 | break; |
| 415 | case (RXH_L4_B_0_1 | RXH_L4_B_2_3): |
| 416 | rss_cfg |= (1ULL << RSS_HASH_UDP); |
| 417 | break; |
| 418 | default: |
| 419 | return -EINVAL; |
| 420 | } |
| 421 | break; |
| 422 | case SCTP_V4_FLOW: |
| 423 | case SCTP_V6_FLOW: |
| 424 | switch (info->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { |
| 425 | case 0: |
| 426 | rss_cfg &= ~(1ULL << RSS_HASH_L4ETC); |
| 427 | break; |
| 428 | case (RXH_L4_B_0_1 | RXH_L4_B_2_3): |
| 429 | rss_cfg |= (1ULL << RSS_HASH_L4ETC); |
| 430 | break; |
| 431 | default: |
| 432 | return -EINVAL; |
| 433 | } |
| 434 | break; |
| 435 | case IPV4_FLOW: |
| 436 | case IPV6_FLOW: |
| 437 | rss_cfg = RSS_HASH_IP; |
| 438 | break; |
| 439 | default: |
| 440 | return -EINVAL; |
| 441 | } |
| 442 | |
| 443 | nicvf_reg_write(nic, NIC_VNIC_RSS_CFG, rss_cfg); |
| 444 | return 0; |
| 445 | } |
| 446 | |
| 447 | static int nicvf_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info) |
| 448 | { |
| 449 | struct nicvf *nic = netdev_priv(dev); |
| 450 | |
| 451 | switch (info->cmd) { |
| 452 | case ETHTOOL_SRXFH: |
| 453 | return nicvf_set_rss_hash_opts(nic, info); |
| 454 | default: |
| 455 | break; |
| 456 | } |
| 457 | return -EOPNOTSUPP; |
| 458 | } |
| 459 | |
| 460 | static u32 nicvf_get_rxfh_key_size(struct net_device *netdev) |
| 461 | { |
| 462 | return RSS_HASH_KEY_SIZE * sizeof(u64); |
| 463 | } |
| 464 | |
| 465 | static u32 nicvf_get_rxfh_indir_size(struct net_device *dev) |
| 466 | { |
| 467 | struct nicvf *nic = netdev_priv(dev); |
| 468 | |
| 469 | return nic->rss_info.rss_size; |
| 470 | } |
| 471 | |
| 472 | static int nicvf_get_rxfh(struct net_device *dev, u32 *indir, u8 *hkey, |
| 473 | u8 *hfunc) |
| 474 | { |
| 475 | struct nicvf *nic = netdev_priv(dev); |
| 476 | struct nicvf_rss_info *rss = &nic->rss_info; |
| 477 | int idx; |
| 478 | |
| 479 | if (indir) { |
| 480 | for (idx = 0; idx < rss->rss_size; idx++) |
| 481 | indir[idx] = rss->ind_tbl[idx]; |
| 482 | } |
| 483 | |
| 484 | if (hkey) |
| 485 | memcpy(hkey, rss->key, RSS_HASH_KEY_SIZE * sizeof(u64)); |
| 486 | |
| 487 | if (hfunc) |
| 488 | *hfunc = ETH_RSS_HASH_TOP; |
| 489 | |
| 490 | return 0; |
| 491 | } |
| 492 | |
| 493 | static int nicvf_set_rxfh(struct net_device *dev, const u32 *indir, |
| 494 | const u8 *hkey, u8 hfunc) |
| 495 | { |
| 496 | struct nicvf *nic = netdev_priv(dev); |
| 497 | struct nicvf_rss_info *rss = &nic->rss_info; |
| 498 | int idx; |
| 499 | |
| 500 | if ((nic->qs->rq_cnt <= 1) || (nic->cpi_alg != CPI_ALG_NONE)) { |
| 501 | rss->enable = false; |
| 502 | rss->hash_bits = 0; |
| 503 | return -EIO; |
| 504 | } |
| 505 | |
| 506 | /* We do not allow change in unsupported parameters */ |
Aleksey Makarov | 8998784 | 2015-06-02 11:00:24 -0700 | [diff] [blame] | 507 | if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) |
Sunil Goutham | 4863dea | 2015-05-26 19:20:15 -0700 | [diff] [blame] | 508 | return -EOPNOTSUPP; |
| 509 | |
| 510 | rss->enable = true; |
| 511 | if (indir) { |
| 512 | for (idx = 0; idx < rss->rss_size; idx++) |
| 513 | rss->ind_tbl[idx] = indir[idx]; |
| 514 | } |
| 515 | |
| 516 | if (hkey) { |
| 517 | memcpy(rss->key, hkey, RSS_HASH_KEY_SIZE * sizeof(u64)); |
| 518 | nicvf_set_rss_key(nic); |
| 519 | } |
| 520 | |
| 521 | nicvf_config_rss(nic); |
| 522 | return 0; |
| 523 | } |
| 524 | |
| 525 | /* Get no of queues device supports and current queue count */ |
| 526 | static void nicvf_get_channels(struct net_device *dev, |
| 527 | struct ethtool_channels *channel) |
| 528 | { |
| 529 | struct nicvf *nic = netdev_priv(dev); |
| 530 | |
| 531 | memset(channel, 0, sizeof(*channel)); |
| 532 | |
| 533 | channel->max_rx = MAX_RCV_QUEUES_PER_QS; |
| 534 | channel->max_tx = MAX_SND_QUEUES_PER_QS; |
| 535 | |
| 536 | channel->rx_count = nic->qs->rq_cnt; |
| 537 | channel->tx_count = nic->qs->sq_cnt; |
| 538 | } |
| 539 | |
| 540 | /* Set no of Tx, Rx queues to be used */ |
| 541 | static int nicvf_set_channels(struct net_device *dev, |
| 542 | struct ethtool_channels *channel) |
| 543 | { |
| 544 | struct nicvf *nic = netdev_priv(dev); |
| 545 | int err = 0; |
| 546 | |
| 547 | if (!channel->rx_count || !channel->tx_count) |
| 548 | return -EINVAL; |
| 549 | if (channel->rx_count > MAX_RCV_QUEUES_PER_QS) |
| 550 | return -EINVAL; |
| 551 | if (channel->tx_count > MAX_SND_QUEUES_PER_QS) |
| 552 | return -EINVAL; |
| 553 | |
| 554 | nic->qs->rq_cnt = channel->rx_count; |
| 555 | nic->qs->sq_cnt = channel->tx_count; |
| 556 | nic->qs->cq_cnt = max(nic->qs->rq_cnt, nic->qs->sq_cnt); |
| 557 | |
| 558 | err = nicvf_set_real_num_queues(dev, nic->qs->sq_cnt, nic->qs->rq_cnt); |
| 559 | if (err) |
| 560 | return err; |
| 561 | |
| 562 | if (!netif_running(dev)) |
| 563 | return err; |
| 564 | |
| 565 | nicvf_stop(dev); |
| 566 | nicvf_open(dev); |
| 567 | netdev_info(dev, "Setting num Tx rings to %d, Rx rings to %d success\n", |
| 568 | nic->qs->sq_cnt, nic->qs->rq_cnt); |
| 569 | |
| 570 | return err; |
| 571 | } |
| 572 | |
| 573 | static const struct ethtool_ops nicvf_ethtool_ops = { |
| 574 | .get_settings = nicvf_get_settings, |
| 575 | .get_link = ethtool_op_get_link, |
| 576 | .get_drvinfo = nicvf_get_drvinfo, |
| 577 | .get_msglevel = nicvf_get_msglevel, |
| 578 | .set_msglevel = nicvf_set_msglevel, |
| 579 | .get_strings = nicvf_get_strings, |
| 580 | .get_sset_count = nicvf_get_sset_count, |
| 581 | .get_ethtool_stats = nicvf_get_ethtool_stats, |
| 582 | .get_regs_len = nicvf_get_regs_len, |
| 583 | .get_regs = nicvf_get_regs, |
| 584 | .get_coalesce = nicvf_get_coalesce, |
| 585 | .get_ringparam = nicvf_get_ringparam, |
| 586 | .get_rxnfc = nicvf_get_rxnfc, |
| 587 | .set_rxnfc = nicvf_set_rxnfc, |
| 588 | .get_rxfh_key_size = nicvf_get_rxfh_key_size, |
| 589 | .get_rxfh_indir_size = nicvf_get_rxfh_indir_size, |
| 590 | .get_rxfh = nicvf_get_rxfh, |
| 591 | .set_rxfh = nicvf_set_rxfh, |
| 592 | .get_channels = nicvf_get_channels, |
| 593 | .set_channels = nicvf_set_channels, |
| 594 | .get_ts_info = ethtool_op_get_ts_info, |
| 595 | }; |
| 596 | |
| 597 | void nicvf_set_ethtool_ops(struct net_device *netdev) |
| 598 | { |
| 599 | netdev->ethtool_ops = &nicvf_ethtool_ops; |
| 600 | } |