Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Linux driver for VMware's vmxnet3 ethernet NIC. |
| 3 | * |
Ronak Doshi | b225802 | 2021-07-01 23:44:27 -0700 | [diff] [blame] | 4 | * Copyright (C) 2008-2021, VMware, Inc. All Rights Reserved. |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify it |
| 7 | * under the terms of the GNU General Public License as published by the |
| 8 | * Free Software Foundation; version 2 of the License and no later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, but |
| 11 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or |
| 13 | * NON INFRINGEMENT. See the GNU General Public License for more |
| 14 | * details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 19 | * |
| 20 | * The full GNU General Public License is included in this distribution in |
| 21 | * the file called "COPYING". |
| 22 | * |
Shrikrishna Khare | 190af10 | 2016-06-16 10:51:53 -0700 | [diff] [blame] | 23 | * Maintained by: pv-drivers@vmware.com |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 24 | * |
| 25 | */ |
| 26 | |
| 27 | |
| 28 | #include "vmxnet3_int.h" |
Ronak Doshi | b225802 | 2021-07-01 23:44:27 -0700 | [diff] [blame] | 29 | #include <net/vxlan.h> |
| 30 | #include <net/geneve.h> |
| 31 | |
| 32 | #define VXLAN_UDP_PORT 8472 |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 33 | |
| 34 | struct vmxnet3_stat_desc { |
| 35 | char desc[ETH_GSTRING_LEN]; |
| 36 | int offset; |
| 37 | }; |
| 38 | |
| 39 | |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 40 | /* per tq stats maintained by the device */ |
| 41 | static const struct vmxnet3_stat_desc |
| 42 | vmxnet3_tq_dev_stats[] = { |
| 43 | /* description, offset */ |
Shreyas Bhatewara | 76d39da | 2011-01-14 14:59:47 +0000 | [diff] [blame] | 44 | { "Tx Queue#", 0 }, |
| 45 | { " TSO pkts tx", offsetof(struct UPT1_TxStats, TSOPktsTxOK) }, |
| 46 | { " TSO bytes tx", offsetof(struct UPT1_TxStats, TSOBytesTxOK) }, |
| 47 | { " ucast pkts tx", offsetof(struct UPT1_TxStats, ucastPktsTxOK) }, |
| 48 | { " ucast bytes tx", offsetof(struct UPT1_TxStats, ucastBytesTxOK) }, |
| 49 | { " mcast pkts tx", offsetof(struct UPT1_TxStats, mcastPktsTxOK) }, |
| 50 | { " mcast bytes tx", offsetof(struct UPT1_TxStats, mcastBytesTxOK) }, |
| 51 | { " bcast pkts tx", offsetof(struct UPT1_TxStats, bcastPktsTxOK) }, |
| 52 | { " bcast bytes tx", offsetof(struct UPT1_TxStats, bcastBytesTxOK) }, |
| 53 | { " pkts tx err", offsetof(struct UPT1_TxStats, pktsTxError) }, |
| 54 | { " pkts tx discard", offsetof(struct UPT1_TxStats, pktsTxDiscard) }, |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 55 | }; |
| 56 | |
| 57 | /* per tq stats maintained by the driver */ |
| 58 | static const struct vmxnet3_stat_desc |
| 59 | vmxnet3_tq_driver_stats[] = { |
| 60 | /* description, offset */ |
Shreyas Bhatewara | 76d39da | 2011-01-14 14:59:47 +0000 | [diff] [blame] | 61 | {" drv dropped tx total", offsetof(struct vmxnet3_tq_driver_stats, |
| 62 | drop_total) }, |
| 63 | { " too many frags", offsetof(struct vmxnet3_tq_driver_stats, |
| 64 | drop_too_many_frags) }, |
| 65 | { " giant hdr", offsetof(struct vmxnet3_tq_driver_stats, |
| 66 | drop_oversized_hdr) }, |
| 67 | { " hdr err", offsetof(struct vmxnet3_tq_driver_stats, |
| 68 | drop_hdr_inspect_err) }, |
| 69 | { " tso", offsetof(struct vmxnet3_tq_driver_stats, |
| 70 | drop_tso) }, |
| 71 | { " ring full", offsetof(struct vmxnet3_tq_driver_stats, |
| 72 | tx_ring_full) }, |
| 73 | { " pkts linearized", offsetof(struct vmxnet3_tq_driver_stats, |
| 74 | linearized) }, |
| 75 | { " hdr cloned", offsetof(struct vmxnet3_tq_driver_stats, |
| 76 | copy_skb_header) }, |
| 77 | { " giant hdr", offsetof(struct vmxnet3_tq_driver_stats, |
| 78 | oversized_hdr) }, |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 79 | }; |
| 80 | |
| 81 | /* per rq stats maintained by the device */ |
| 82 | static const struct vmxnet3_stat_desc |
| 83 | vmxnet3_rq_dev_stats[] = { |
Shreyas Bhatewara | 76d39da | 2011-01-14 14:59:47 +0000 | [diff] [blame] | 84 | { "Rx Queue#", 0 }, |
| 85 | { " LRO pkts rx", offsetof(struct UPT1_RxStats, LROPktsRxOK) }, |
| 86 | { " LRO byte rx", offsetof(struct UPT1_RxStats, LROBytesRxOK) }, |
| 87 | { " ucast pkts rx", offsetof(struct UPT1_RxStats, ucastPktsRxOK) }, |
| 88 | { " ucast bytes rx", offsetof(struct UPT1_RxStats, ucastBytesRxOK) }, |
| 89 | { " mcast pkts rx", offsetof(struct UPT1_RxStats, mcastPktsRxOK) }, |
| 90 | { " mcast bytes rx", offsetof(struct UPT1_RxStats, mcastBytesRxOK) }, |
| 91 | { " bcast pkts rx", offsetof(struct UPT1_RxStats, bcastPktsRxOK) }, |
| 92 | { " bcast bytes rx", offsetof(struct UPT1_RxStats, bcastBytesRxOK) }, |
| 93 | { " pkts rx OOB", offsetof(struct UPT1_RxStats, pktsRxOutOfBuf) }, |
| 94 | { " pkts rx err", offsetof(struct UPT1_RxStats, pktsRxError) }, |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 95 | }; |
| 96 | |
| 97 | /* per rq stats maintained by the driver */ |
| 98 | static const struct vmxnet3_stat_desc |
| 99 | vmxnet3_rq_driver_stats[] = { |
| 100 | /* description, offset */ |
Shreyas Bhatewara | 76d39da | 2011-01-14 14:59:47 +0000 | [diff] [blame] | 101 | { " drv dropped rx total", offsetof(struct vmxnet3_rq_driver_stats, |
| 102 | drop_total) }, |
| 103 | { " err", offsetof(struct vmxnet3_rq_driver_stats, |
| 104 | drop_err) }, |
| 105 | { " fcs", offsetof(struct vmxnet3_rq_driver_stats, |
| 106 | drop_fcs) }, |
| 107 | { " rx buf alloc fail", offsetof(struct vmxnet3_rq_driver_stats, |
| 108 | rx_buf_alloc_failure) }, |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 109 | }; |
| 110 | |
stephen hemminger | 7887456 | 2015-04-01 15:33:08 -0700 | [diff] [blame] | 111 | /* global stats maintained by the driver */ |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 112 | static const struct vmxnet3_stat_desc |
| 113 | vmxnet3_global_stats[] = { |
| 114 | /* description, offset */ |
Shreyas Bhatewara | 76d39da | 2011-01-14 14:59:47 +0000 | [diff] [blame] | 115 | { "tx timeout count", offsetof(struct vmxnet3_adapter, |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 116 | tx_timeout_count) } |
| 117 | }; |
| 118 | |
| 119 | |
stephen hemminger | bc1f447 | 2017-01-06 19:12:52 -0800 | [diff] [blame] | 120 | void |
stephen hemminger | 95305f6 | 2011-06-08 14:53:57 +0000 | [diff] [blame] | 121 | vmxnet3_get_stats64(struct net_device *netdev, |
| 122 | struct rtnl_link_stats64 *stats) |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 123 | { |
| 124 | struct vmxnet3_adapter *adapter; |
| 125 | struct vmxnet3_tq_driver_stats *drvTxStats; |
| 126 | struct vmxnet3_rq_driver_stats *drvRxStats; |
| 127 | struct UPT1_TxStats *devTxStats; |
| 128 | struct UPT1_RxStats *devRxStats; |
Shreyas Bhatewara | 83d0fef | 2011-01-14 14:59:57 +0000 | [diff] [blame] | 129 | unsigned long flags; |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 130 | int i; |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 131 | |
| 132 | adapter = netdev_priv(netdev); |
| 133 | |
| 134 | /* Collect the dev stats into the shared area */ |
Shreyas Bhatewara | 83d0fef | 2011-01-14 14:59:57 +0000 | [diff] [blame] | 135 | spin_lock_irqsave(&adapter->cmd_lock, flags); |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 136 | VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS); |
Shreyas Bhatewara | 83d0fef | 2011-01-14 14:59:57 +0000 | [diff] [blame] | 137 | spin_unlock_irqrestore(&adapter->cmd_lock, flags); |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 138 | |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 139 | for (i = 0; i < adapter->num_tx_queues; i++) { |
| 140 | devTxStats = &adapter->tqd_start[i].stats; |
| 141 | drvTxStats = &adapter->tx_queue[i].stats; |
stephen hemminger | 95305f6 | 2011-06-08 14:53:57 +0000 | [diff] [blame] | 142 | stats->tx_packets += devTxStats->ucastPktsTxOK + |
| 143 | devTxStats->mcastPktsTxOK + |
| 144 | devTxStats->bcastPktsTxOK; |
| 145 | stats->tx_bytes += devTxStats->ucastBytesTxOK + |
| 146 | devTxStats->mcastBytesTxOK + |
| 147 | devTxStats->bcastBytesTxOK; |
| 148 | stats->tx_errors += devTxStats->pktsTxError; |
| 149 | stats->tx_dropped += drvTxStats->drop_total; |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 150 | } |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 151 | |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 152 | for (i = 0; i < adapter->num_rx_queues; i++) { |
| 153 | devRxStats = &adapter->rqd_start[i].stats; |
| 154 | drvRxStats = &adapter->rx_queue[i].stats; |
stephen hemminger | 95305f6 | 2011-06-08 14:53:57 +0000 | [diff] [blame] | 155 | stats->rx_packets += devRxStats->ucastPktsRxOK + |
| 156 | devRxStats->mcastPktsRxOK + |
| 157 | devRxStats->bcastPktsRxOK; |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 158 | |
stephen hemminger | 95305f6 | 2011-06-08 14:53:57 +0000 | [diff] [blame] | 159 | stats->rx_bytes += devRxStats->ucastBytesRxOK + |
| 160 | devRxStats->mcastBytesRxOK + |
| 161 | devRxStats->bcastBytesRxOK; |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 162 | |
stephen hemminger | 95305f6 | 2011-06-08 14:53:57 +0000 | [diff] [blame] | 163 | stats->rx_errors += devRxStats->pktsRxError; |
| 164 | stats->rx_dropped += drvRxStats->drop_total; |
| 165 | stats->multicast += devRxStats->mcastPktsRxOK; |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 166 | } |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 167 | } |
| 168 | |
| 169 | static int |
| 170 | vmxnet3_get_sset_count(struct net_device *netdev, int sset) |
| 171 | { |
Shreyas Bhatewara | 76d39da | 2011-01-14 14:59:47 +0000 | [diff] [blame] | 172 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 173 | switch (sset) { |
| 174 | case ETH_SS_STATS: |
Shreyas Bhatewara | 76d39da | 2011-01-14 14:59:47 +0000 | [diff] [blame] | 175 | return (ARRAY_SIZE(vmxnet3_tq_dev_stats) + |
| 176 | ARRAY_SIZE(vmxnet3_tq_driver_stats)) * |
| 177 | adapter->num_tx_queues + |
| 178 | (ARRAY_SIZE(vmxnet3_rq_dev_stats) + |
| 179 | ARRAY_SIZE(vmxnet3_rq_driver_stats)) * |
| 180 | adapter->num_rx_queues + |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 181 | ARRAY_SIZE(vmxnet3_global_stats); |
| 182 | default: |
| 183 | return -EOPNOTSUPP; |
| 184 | } |
| 185 | } |
| 186 | |
| 187 | |
Shrikrishna Khare | b6bd9b5 | 2015-09-21 20:01:29 -0700 | [diff] [blame] | 188 | /* This is a version 2 of the vmxnet3 ethtool_regs which goes hand in hand with |
| 189 | * the version 2 of the vmxnet3 support for ethtool(8) --register-dump. |
| 190 | * Therefore, if any registers are added, removed or modified, then a version |
| 191 | * bump and a corresponding change in the vmxnet3 support for ethtool(8) |
| 192 | * --register-dump would be required. |
| 193 | */ |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 194 | static int |
| 195 | vmxnet3_get_regs_len(struct net_device *netdev) |
| 196 | { |
Shreyas Bhatewara | 76d39da | 2011-01-14 14:59:47 +0000 | [diff] [blame] | 197 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
Shrikrishna Khare | b6bd9b5 | 2015-09-21 20:01:29 -0700 | [diff] [blame] | 198 | |
| 199 | return ((9 /* BAR1 registers */ + |
| 200 | (1 + adapter->intr.num_intrs) + |
| 201 | (1 + adapter->num_tx_queues * 17 /* Tx queue registers */) + |
| 202 | (1 + adapter->num_rx_queues * 23 /* Rx queue registers */)) * |
| 203 | sizeof(u32)); |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 204 | } |
| 205 | |
| 206 | |
| 207 | static void |
| 208 | vmxnet3_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo) |
| 209 | { |
| 210 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
| 211 | |
| 212 | strlcpy(drvinfo->driver, vmxnet3_driver_name, sizeof(drvinfo->driver)); |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 213 | |
| 214 | strlcpy(drvinfo->version, VMXNET3_DRIVER_VERSION_REPORT, |
| 215 | sizeof(drvinfo->version)); |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 216 | |
| 217 | strlcpy(drvinfo->bus_info, pci_name(adapter->pdev), |
Jiri Pirko | 7826d43 | 2013-01-06 00:44:26 +0000 | [diff] [blame] | 218 | sizeof(drvinfo->bus_info)); |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 219 | } |
| 220 | |
| 221 | |
| 222 | static void |
| 223 | vmxnet3_get_strings(struct net_device *netdev, u32 stringset, u8 *buf) |
| 224 | { |
Alexander Duyck | 3b78b30 | 2021-03-16 17:31:37 -0700 | [diff] [blame] | 225 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
| 226 | int i, j; |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 227 | |
Alexander Duyck | 3b78b30 | 2021-03-16 17:31:37 -0700 | [diff] [blame] | 228 | if (stringset != ETH_SS_STATS) |
| 229 | return; |
Shreyas Bhatewara | 76d39da | 2011-01-14 14:59:47 +0000 | [diff] [blame] | 230 | |
Alexander Duyck | 3b78b30 | 2021-03-16 17:31:37 -0700 | [diff] [blame] | 231 | for (j = 0; j < adapter->num_tx_queues; j++) { |
| 232 | for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++) |
| 233 | ethtool_sprintf(&buf, vmxnet3_tq_dev_stats[i].desc); |
| 234 | for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++) |
| 235 | ethtool_sprintf(&buf, vmxnet3_tq_driver_stats[i].desc); |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 236 | } |
Alexander Duyck | 3b78b30 | 2021-03-16 17:31:37 -0700 | [diff] [blame] | 237 | |
| 238 | for (j = 0; j < adapter->num_rx_queues; j++) { |
| 239 | for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++) |
| 240 | ethtool_sprintf(&buf, vmxnet3_rq_dev_stats[i].desc); |
| 241 | for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++) |
| 242 | ethtool_sprintf(&buf, vmxnet3_rq_driver_stats[i].desc); |
| 243 | } |
| 244 | |
| 245 | for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++) |
| 246 | ethtool_sprintf(&buf, vmxnet3_global_stats[i].desc); |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 247 | } |
| 248 | |
Ronak Doshi | 3dd7400 | 2019-06-03 23:58:38 -0700 | [diff] [blame] | 249 | netdev_features_t vmxnet3_fix_features(struct net_device *netdev, |
| 250 | netdev_features_t features) |
| 251 | { |
| 252 | /* If Rx checksum is disabled, then LRO should also be disabled */ |
| 253 | if (!(features & NETIF_F_RXCSUM)) |
| 254 | features &= ~NETIF_F_LRO; |
| 255 | |
| 256 | return features; |
| 257 | } |
| 258 | |
Ronak Doshi | 1dac3b1 | 2020-09-24 23:11:29 -0700 | [diff] [blame] | 259 | netdev_features_t vmxnet3_features_check(struct sk_buff *skb, |
| 260 | struct net_device *netdev, |
| 261 | netdev_features_t features) |
| 262 | { |
| 263 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
| 264 | |
| 265 | /* Validate if the tunneled packet is being offloaded by the device */ |
| 266 | if (VMXNET3_VERSION_GE_4(adapter) && |
| 267 | skb->encapsulation && skb->ip_summed == CHECKSUM_PARTIAL) { |
| 268 | u8 l4_proto = 0; |
Ronak Doshi | b225802 | 2021-07-01 23:44:27 -0700 | [diff] [blame] | 269 | u16 port; |
| 270 | struct udphdr *udph; |
Ronak Doshi | 1dac3b1 | 2020-09-24 23:11:29 -0700 | [diff] [blame] | 271 | |
| 272 | switch (vlan_get_protocol(skb)) { |
| 273 | case htons(ETH_P_IP): |
| 274 | l4_proto = ip_hdr(skb)->protocol; |
| 275 | break; |
| 276 | case htons(ETH_P_IPV6): |
| 277 | l4_proto = ipv6_hdr(skb)->nexthdr; |
| 278 | break; |
| 279 | default: |
| 280 | return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK); |
| 281 | } |
| 282 | |
Ronak Doshi | b225802 | 2021-07-01 23:44:27 -0700 | [diff] [blame] | 283 | switch (l4_proto) { |
| 284 | case IPPROTO_UDP: |
| 285 | udph = udp_hdr(skb); |
| 286 | port = be16_to_cpu(udph->dest); |
| 287 | /* Check if offloaded port is supported */ |
| 288 | if (port != GENEVE_UDP_PORT && |
| 289 | port != IANA_VXLAN_UDP_PORT && |
| 290 | port != VXLAN_UDP_PORT) { |
| 291 | return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK); |
| 292 | } |
| 293 | break; |
| 294 | default: |
Ronak Doshi | 1dac3b1 | 2020-09-24 23:11:29 -0700 | [diff] [blame] | 295 | return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK); |
Ronak Doshi | b225802 | 2021-07-01 23:44:27 -0700 | [diff] [blame] | 296 | } |
Ronak Doshi | 1dac3b1 | 2020-09-24 23:11:29 -0700 | [diff] [blame] | 297 | } |
| 298 | return features; |
| 299 | } |
| 300 | |
Ronak Doshi | dacce2b | 2020-05-28 14:53:21 -0700 | [diff] [blame] | 301 | static void vmxnet3_enable_encap_offloads(struct net_device *netdev) |
| 302 | { |
| 303 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
| 304 | |
| 305 | if (VMXNET3_VERSION_GE_4(adapter)) { |
| 306 | netdev->hw_enc_features |= NETIF_F_SG | NETIF_F_RXCSUM | |
| 307 | NETIF_F_HW_CSUM | NETIF_F_HW_VLAN_CTAG_TX | |
| 308 | NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_TSO | NETIF_F_TSO6 | |
| 309 | NETIF_F_LRO | NETIF_F_GSO_UDP_TUNNEL | |
| 310 | NETIF_F_GSO_UDP_TUNNEL_CSUM; |
| 311 | } |
| 312 | } |
| 313 | |
| 314 | static void vmxnet3_disable_encap_offloads(struct net_device *netdev) |
| 315 | { |
| 316 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
| 317 | |
| 318 | if (VMXNET3_VERSION_GE_4(adapter)) { |
| 319 | netdev->hw_enc_features &= ~(NETIF_F_SG | NETIF_F_RXCSUM | |
| 320 | NETIF_F_HW_CSUM | NETIF_F_HW_VLAN_CTAG_TX | |
| 321 | NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_TSO | NETIF_F_TSO6 | |
| 322 | NETIF_F_LRO | NETIF_F_GSO_UDP_TUNNEL | |
| 323 | NETIF_F_GSO_UDP_TUNNEL_CSUM); |
| 324 | } |
| 325 | } |
| 326 | |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 327 | int vmxnet3_set_features(struct net_device *netdev, netdev_features_t features) |
Stanislaw Gruszka | d92be4b | 2010-06-27 23:29:42 +0000 | [diff] [blame] | 328 | { |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 329 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
Shreyas Bhatewara | 83d0fef | 2011-01-14 14:59:57 +0000 | [diff] [blame] | 330 | unsigned long flags; |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 331 | netdev_features_t changed = features ^ netdev->features; |
Ronak Doshi | dacce2b | 2020-05-28 14:53:21 -0700 | [diff] [blame] | 332 | netdev_features_t tun_offload_mask = NETIF_F_GSO_UDP_TUNNEL | |
| 333 | NETIF_F_GSO_UDP_TUNNEL_CSUM; |
| 334 | u8 udp_tun_enabled = (netdev->features & tun_offload_mask) != 0; |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 335 | |
Patrick McHardy | f646968 | 2013-04-19 02:04:27 +0000 | [diff] [blame] | 336 | if (changed & (NETIF_F_RXCSUM | NETIF_F_LRO | |
Ronak Doshi | dacce2b | 2020-05-28 14:53:21 -0700 | [diff] [blame] | 337 | NETIF_F_HW_VLAN_CTAG_RX | tun_offload_mask)) { |
Michał Mirosław | a0d2730 | 2011-04-18 13:31:21 +0000 | [diff] [blame] | 338 | if (features & NETIF_F_RXCSUM) |
| 339 | adapter->shared->devRead.misc.uptFeatures |= |
| 340 | UPT1_F_RXCSUM; |
| 341 | else |
| 342 | adapter->shared->devRead.misc.uptFeatures &= |
| 343 | ~UPT1_F_RXCSUM; |
Stanislaw Gruszka | d92be4b | 2010-06-27 23:29:42 +0000 | [diff] [blame] | 344 | |
stephen hemminger | 7887456 | 2015-04-01 15:33:08 -0700 | [diff] [blame] | 345 | /* update hardware LRO capability accordingly */ |
Michał Mirosław | a0d2730 | 2011-04-18 13:31:21 +0000 | [diff] [blame] | 346 | if (features & NETIF_F_LRO) |
Shreyas Bhatewara | ca80244 | 2010-07-15 22:17:29 -0700 | [diff] [blame] | 347 | adapter->shared->devRead.misc.uptFeatures |= |
Harvey Harrison | 3843e51 | 2010-10-21 18:05:32 +0000 | [diff] [blame] | 348 | UPT1_F_LRO; |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 349 | else |
| 350 | adapter->shared->devRead.misc.uptFeatures &= |
Harvey Harrison | 3843e51 | 2010-10-21 18:05:32 +0000 | [diff] [blame] | 351 | ~UPT1_F_LRO; |
Michał Mirosław | a0d2730 | 2011-04-18 13:31:21 +0000 | [diff] [blame] | 352 | |
Patrick McHardy | f646968 | 2013-04-19 02:04:27 +0000 | [diff] [blame] | 353 | if (features & NETIF_F_HW_VLAN_CTAG_RX) |
Jesse Gross | 72e85c4 | 2011-06-23 13:04:39 +0000 | [diff] [blame] | 354 | adapter->shared->devRead.misc.uptFeatures |= |
| 355 | UPT1_F_RXVLAN; |
| 356 | else |
| 357 | adapter->shared->devRead.misc.uptFeatures &= |
| 358 | ~UPT1_F_RXVLAN; |
| 359 | |
Ronak Doshi | dacce2b | 2020-05-28 14:53:21 -0700 | [diff] [blame] | 360 | if ((features & tun_offload_mask) != 0 && !udp_tun_enabled) { |
| 361 | vmxnet3_enable_encap_offloads(netdev); |
| 362 | adapter->shared->devRead.misc.uptFeatures |= |
| 363 | UPT1_F_RXINNEROFLD; |
| 364 | } else if ((features & tun_offload_mask) == 0 && |
| 365 | udp_tun_enabled) { |
| 366 | vmxnet3_disable_encap_offloads(netdev); |
| 367 | adapter->shared->devRead.misc.uptFeatures &= |
| 368 | ~UPT1_F_RXINNEROFLD; |
| 369 | } |
| 370 | |
Shreyas Bhatewara | 83d0fef | 2011-01-14 14:59:57 +0000 | [diff] [blame] | 371 | spin_lock_irqsave(&adapter->cmd_lock, flags); |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 372 | VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, |
| 373 | VMXNET3_CMD_UPDATE_FEATURE); |
Shreyas Bhatewara | 83d0fef | 2011-01-14 14:59:57 +0000 | [diff] [blame] | 374 | spin_unlock_irqrestore(&adapter->cmd_lock, flags); |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 375 | } |
| 376 | return 0; |
| 377 | } |
| 378 | |
| 379 | static void |
| 380 | vmxnet3_get_ethtool_stats(struct net_device *netdev, |
| 381 | struct ethtool_stats *stats, u64 *buf) |
| 382 | { |
| 383 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
Shreyas Bhatewara | 83d0fef | 2011-01-14 14:59:57 +0000 | [diff] [blame] | 384 | unsigned long flags; |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 385 | u8 *base; |
| 386 | int i; |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 387 | int j = 0; |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 388 | |
Shreyas Bhatewara | 83d0fef | 2011-01-14 14:59:57 +0000 | [diff] [blame] | 389 | spin_lock_irqsave(&adapter->cmd_lock, flags); |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 390 | VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS); |
Shreyas Bhatewara | 83d0fef | 2011-01-14 14:59:57 +0000 | [diff] [blame] | 391 | spin_unlock_irqrestore(&adapter->cmd_lock, flags); |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 392 | |
| 393 | /* this does assume each counter is 64-bit wide */ |
Shreyas Bhatewara | 76d39da | 2011-01-14 14:59:47 +0000 | [diff] [blame] | 394 | for (j = 0; j < adapter->num_tx_queues; j++) { |
| 395 | base = (u8 *)&adapter->tqd_start[j].stats; |
| 396 | *buf++ = (u64)j; |
| 397 | for (i = 1; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++) |
| 398 | *buf++ = *(u64 *)(base + |
| 399 | vmxnet3_tq_dev_stats[i].offset); |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 400 | |
Shreyas Bhatewara | 76d39da | 2011-01-14 14:59:47 +0000 | [diff] [blame] | 401 | base = (u8 *)&adapter->tx_queue[j].stats; |
| 402 | for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++) |
| 403 | *buf++ = *(u64 *)(base + |
| 404 | vmxnet3_tq_driver_stats[i].offset); |
| 405 | } |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 406 | |
Shrikrishna Khare | 331b9ab | 2015-01-15 11:54:30 -0800 | [diff] [blame] | 407 | for (j = 0; j < adapter->num_rx_queues; j++) { |
Shreyas Bhatewara | 76d39da | 2011-01-14 14:59:47 +0000 | [diff] [blame] | 408 | base = (u8 *)&adapter->rqd_start[j].stats; |
| 409 | *buf++ = (u64) j; |
| 410 | for (i = 1; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++) |
| 411 | *buf++ = *(u64 *)(base + |
| 412 | vmxnet3_rq_dev_stats[i].offset); |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 413 | |
Shreyas Bhatewara | 76d39da | 2011-01-14 14:59:47 +0000 | [diff] [blame] | 414 | base = (u8 *)&adapter->rx_queue[j].stats; |
| 415 | for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++) |
| 416 | *buf++ = *(u64 *)(base + |
| 417 | vmxnet3_rq_driver_stats[i].offset); |
| 418 | } |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 419 | |
| 420 | base = (u8 *)adapter; |
| 421 | for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++) |
| 422 | *buf++ = *(u64 *)(base + vmxnet3_global_stats[i].offset); |
| 423 | } |
| 424 | |
| 425 | |
Shrikrishna Khare | b6bd9b5 | 2015-09-21 20:01:29 -0700 | [diff] [blame] | 426 | /* This is a version 2 of the vmxnet3 ethtool_regs which goes hand in hand with |
| 427 | * the version 2 of the vmxnet3 support for ethtool(8) --register-dump. |
| 428 | * Therefore, if any registers are added, removed or modified, then a version |
| 429 | * bump and a corresponding change in the vmxnet3 support for ethtool(8) |
| 430 | * --register-dump would be required. |
| 431 | */ |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 432 | static void |
| 433 | vmxnet3_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p) |
| 434 | { |
| 435 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
| 436 | u32 *buf = p; |
Shreyas Bhatewara | 76d39da | 2011-01-14 14:59:47 +0000 | [diff] [blame] | 437 | int i = 0, j = 0; |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 438 | |
| 439 | memset(p, 0, vmxnet3_get_regs_len(netdev)); |
| 440 | |
Shrikrishna Khare | b6bd9b5 | 2015-09-21 20:01:29 -0700 | [diff] [blame] | 441 | regs->version = 2; |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 442 | |
| 443 | /* Update vmxnet3_get_regs_len if we want to dump more registers */ |
| 444 | |
Shrikrishna Khare | b6bd9b5 | 2015-09-21 20:01:29 -0700 | [diff] [blame] | 445 | buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_VRRS); |
| 446 | buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_UVRS); |
| 447 | buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_DSAL); |
| 448 | buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_DSAH); |
| 449 | buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD); |
| 450 | buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_MACL); |
| 451 | buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_MACH); |
| 452 | buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_ICR); |
| 453 | buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_ECR); |
| 454 | |
| 455 | buf[j++] = adapter->intr.num_intrs; |
| 456 | for (i = 0; i < adapter->intr.num_intrs; i++) { |
| 457 | buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_IMR |
| 458 | + i * VMXNET3_REG_ALIGN); |
| 459 | } |
| 460 | |
| 461 | buf[j++] = adapter->num_tx_queues; |
Shreyas Bhatewara | 76d39da | 2011-01-14 14:59:47 +0000 | [diff] [blame] | 462 | for (i = 0; i < adapter->num_tx_queues; i++) { |
Shrikrishna Khare | b6bd9b5 | 2015-09-21 20:01:29 -0700 | [diff] [blame] | 463 | struct vmxnet3_tx_queue *tq = &adapter->tx_queue[i]; |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 464 | |
Shrikrishna Khare | b6bd9b5 | 2015-09-21 20:01:29 -0700 | [diff] [blame] | 465 | buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_TXPROD + |
| 466 | i * VMXNET3_REG_ALIGN); |
| 467 | |
| 468 | buf[j++] = VMXNET3_GET_ADDR_LO(tq->tx_ring.basePA); |
| 469 | buf[j++] = VMXNET3_GET_ADDR_HI(tq->tx_ring.basePA); |
| 470 | buf[j++] = tq->tx_ring.size; |
| 471 | buf[j++] = tq->tx_ring.next2fill; |
| 472 | buf[j++] = tq->tx_ring.next2comp; |
| 473 | buf[j++] = tq->tx_ring.gen; |
| 474 | |
| 475 | buf[j++] = VMXNET3_GET_ADDR_LO(tq->data_ring.basePA); |
| 476 | buf[j++] = VMXNET3_GET_ADDR_HI(tq->data_ring.basePA); |
| 477 | buf[j++] = tq->data_ring.size; |
Shrikrishna Khare | 3c8b3ef | 2016-06-16 10:51:55 -0700 | [diff] [blame] | 478 | buf[j++] = tq->txdata_desc_size; |
Shrikrishna Khare | b6bd9b5 | 2015-09-21 20:01:29 -0700 | [diff] [blame] | 479 | |
| 480 | buf[j++] = VMXNET3_GET_ADDR_LO(tq->comp_ring.basePA); |
| 481 | buf[j++] = VMXNET3_GET_ADDR_HI(tq->comp_ring.basePA); |
| 482 | buf[j++] = tq->comp_ring.size; |
| 483 | buf[j++] = tq->comp_ring.next2proc; |
| 484 | buf[j++] = tq->comp_ring.gen; |
| 485 | |
| 486 | buf[j++] = tq->stopped; |
Shreyas Bhatewara | 76d39da | 2011-01-14 14:59:47 +0000 | [diff] [blame] | 487 | } |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 488 | |
Shrikrishna Khare | b6bd9b5 | 2015-09-21 20:01:29 -0700 | [diff] [blame] | 489 | buf[j++] = adapter->num_rx_queues; |
Shreyas Bhatewara | 76d39da | 2011-01-14 14:59:47 +0000 | [diff] [blame] | 490 | for (i = 0; i < adapter->num_rx_queues; i++) { |
Shrikrishna Khare | b6bd9b5 | 2015-09-21 20:01:29 -0700 | [diff] [blame] | 491 | struct vmxnet3_rx_queue *rq = &adapter->rx_queue[i]; |
| 492 | |
| 493 | buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_RXPROD + |
| 494 | i * VMXNET3_REG_ALIGN); |
| 495 | buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_RXPROD2 + |
| 496 | i * VMXNET3_REG_ALIGN); |
| 497 | |
| 498 | buf[j++] = VMXNET3_GET_ADDR_LO(rq->rx_ring[0].basePA); |
| 499 | buf[j++] = VMXNET3_GET_ADDR_HI(rq->rx_ring[0].basePA); |
| 500 | buf[j++] = rq->rx_ring[0].size; |
| 501 | buf[j++] = rq->rx_ring[0].next2fill; |
| 502 | buf[j++] = rq->rx_ring[0].next2comp; |
| 503 | buf[j++] = rq->rx_ring[0].gen; |
| 504 | |
| 505 | buf[j++] = VMXNET3_GET_ADDR_LO(rq->rx_ring[1].basePA); |
| 506 | buf[j++] = VMXNET3_GET_ADDR_HI(rq->rx_ring[1].basePA); |
| 507 | buf[j++] = rq->rx_ring[1].size; |
| 508 | buf[j++] = rq->rx_ring[1].next2fill; |
| 509 | buf[j++] = rq->rx_ring[1].next2comp; |
| 510 | buf[j++] = rq->rx_ring[1].gen; |
| 511 | |
Shrikrishna Khare | 50a5ce3 | 2016-06-16 10:51:56 -0700 | [diff] [blame] | 512 | buf[j++] = VMXNET3_GET_ADDR_LO(rq->data_ring.basePA); |
| 513 | buf[j++] = VMXNET3_GET_ADDR_HI(rq->data_ring.basePA); |
| 514 | buf[j++] = rq->rx_ring[0].size; |
| 515 | buf[j++] = rq->data_ring.desc_size; |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 516 | |
Shrikrishna Khare | b6bd9b5 | 2015-09-21 20:01:29 -0700 | [diff] [blame] | 517 | buf[j++] = VMXNET3_GET_ADDR_LO(rq->comp_ring.basePA); |
| 518 | buf[j++] = VMXNET3_GET_ADDR_HI(rq->comp_ring.basePA); |
| 519 | buf[j++] = rq->comp_ring.size; |
| 520 | buf[j++] = rq->comp_ring.next2proc; |
| 521 | buf[j++] = rq->comp_ring.gen; |
Shreyas Bhatewara | 76d39da | 2011-01-14 14:59:47 +0000 | [diff] [blame] | 522 | } |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 523 | } |
| 524 | |
| 525 | |
| 526 | static void |
| 527 | vmxnet3_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) |
| 528 | { |
| 529 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
| 530 | |
| 531 | wol->supported = WAKE_UCAST | WAKE_ARP | WAKE_MAGIC; |
| 532 | wol->wolopts = adapter->wol; |
| 533 | } |
| 534 | |
| 535 | |
| 536 | static int |
| 537 | vmxnet3_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) |
| 538 | { |
| 539 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
| 540 | |
| 541 | if (wol->wolopts & (WAKE_PHY | WAKE_MCAST | WAKE_BCAST | |
| 542 | WAKE_MAGICSECURE)) { |
| 543 | return -EOPNOTSUPP; |
| 544 | } |
| 545 | |
| 546 | adapter->wol = wol->wolopts; |
| 547 | |
| 548 | device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); |
| 549 | |
| 550 | return 0; |
| 551 | } |
| 552 | |
| 553 | |
| 554 | static int |
Philippe Reynes | 3426bd7 | 2017-03-22 08:27:57 +0100 | [diff] [blame] | 555 | vmxnet3_get_link_ksettings(struct net_device *netdev, |
| 556 | struct ethtool_link_ksettings *ecmd) |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 557 | { |
| 558 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
| 559 | |
Philippe Reynes | 3426bd7 | 2017-03-22 08:27:57 +0100 | [diff] [blame] | 560 | ethtool_link_ksettings_zero_link_mode(ecmd, supported); |
| 561 | ethtool_link_ksettings_add_link_mode(ecmd, supported, 10000baseT_Full); |
| 562 | ethtool_link_ksettings_add_link_mode(ecmd, supported, 1000baseT_Full); |
| 563 | ethtool_link_ksettings_add_link_mode(ecmd, supported, TP); |
| 564 | ethtool_link_ksettings_zero_link_mode(ecmd, advertising); |
| 565 | ethtool_link_ksettings_add_link_mode(ecmd, advertising, TP); |
| 566 | ecmd->base.port = PORT_TP; |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 567 | |
| 568 | if (adapter->link_speed) { |
Philippe Reynes | 3426bd7 | 2017-03-22 08:27:57 +0100 | [diff] [blame] | 569 | ecmd->base.speed = adapter->link_speed; |
| 570 | ecmd->base.duplex = DUPLEX_FULL; |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 571 | } else { |
Philippe Reynes | 3426bd7 | 2017-03-22 08:27:57 +0100 | [diff] [blame] | 572 | ecmd->base.speed = SPEED_UNKNOWN; |
| 573 | ecmd->base.duplex = DUPLEX_UNKNOWN; |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 574 | } |
| 575 | return 0; |
| 576 | } |
| 577 | |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 578 | static void |
| 579 | vmxnet3_get_ringparam(struct net_device *netdev, |
Hao Chen | 7462494 | 2021-11-18 20:12:43 +0800 | [diff] [blame] | 580 | struct ethtool_ringparam *param, |
| 581 | struct kernel_ethtool_ringparam *kernel_param, |
| 582 | struct netlink_ext_ack *extack) |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 583 | { |
| 584 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
| 585 | |
| 586 | param->rx_max_pending = VMXNET3_RX_RING_MAX_SIZE; |
| 587 | param->tx_max_pending = VMXNET3_TX_RING_MAX_SIZE; |
Shrikrishna Khare | 50a5ce3 | 2016-06-16 10:51:56 -0700 | [diff] [blame] | 588 | param->rx_mini_max_pending = VMXNET3_VERSION_GE_3(adapter) ? |
| 589 | VMXNET3_RXDATA_DESC_MAX_SIZE : 0; |
Shrikrishna Khare | 53831aa | 2015-01-06 09:20:15 -0800 | [diff] [blame] | 590 | param->rx_jumbo_max_pending = VMXNET3_RX_RING2_MAX_SIZE; |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 591 | |
Neil Horman | f00e2b0 | 2014-06-13 10:03:21 -0400 | [diff] [blame] | 592 | param->rx_pending = adapter->rx_ring_size; |
| 593 | param->tx_pending = adapter->tx_ring_size; |
Shrikrishna Khare | 50a5ce3 | 2016-06-16 10:51:56 -0700 | [diff] [blame] | 594 | param->rx_mini_pending = VMXNET3_VERSION_GE_3(adapter) ? |
| 595 | adapter->rxdata_desc_size : 0; |
Shrikrishna Khare | 53831aa | 2015-01-06 09:20:15 -0800 | [diff] [blame] | 596 | param->rx_jumbo_pending = adapter->rx_ring2_size; |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 597 | } |
| 598 | |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 599 | static int |
| 600 | vmxnet3_set_ringparam(struct net_device *netdev, |
Hao Chen | 7462494 | 2021-11-18 20:12:43 +0800 | [diff] [blame] | 601 | struct ethtool_ringparam *param, |
| 602 | struct kernel_ethtool_ringparam *kernel_param, |
| 603 | struct netlink_ext_ack *extack) |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 604 | { |
| 605 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
Shrikrishna Khare | 53831aa | 2015-01-06 09:20:15 -0800 | [diff] [blame] | 606 | u32 new_tx_ring_size, new_rx_ring_size, new_rx_ring2_size; |
Shrikrishna Khare | 50a5ce3 | 2016-06-16 10:51:56 -0700 | [diff] [blame] | 607 | u16 new_rxdata_desc_size; |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 608 | u32 sz; |
| 609 | int err = 0; |
| 610 | |
| 611 | if (param->tx_pending == 0 || param->tx_pending > |
| 612 | VMXNET3_TX_RING_MAX_SIZE) |
| 613 | return -EINVAL; |
| 614 | |
| 615 | if (param->rx_pending == 0 || param->rx_pending > |
| 616 | VMXNET3_RX_RING_MAX_SIZE) |
| 617 | return -EINVAL; |
| 618 | |
Shrikrishna Khare | 53831aa | 2015-01-06 09:20:15 -0800 | [diff] [blame] | 619 | if (param->rx_jumbo_pending == 0 || |
| 620 | param->rx_jumbo_pending > VMXNET3_RX_RING2_MAX_SIZE) |
| 621 | return -EINVAL; |
| 622 | |
Bhavesh Davda | e4fabf2 | 2013-03-06 12:04:53 +0000 | [diff] [blame] | 623 | /* if adapter not yet initialized, do nothing */ |
| 624 | if (adapter->rx_buf_per_pkt == 0) { |
| 625 | netdev_err(netdev, "adapter not completely initialized, " |
| 626 | "ring size cannot be changed yet\n"); |
| 627 | return -EOPNOTSUPP; |
| 628 | } |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 629 | |
Shrikrishna Khare | 50a5ce3 | 2016-06-16 10:51:56 -0700 | [diff] [blame] | 630 | if (VMXNET3_VERSION_GE_3(adapter)) { |
yuehaibing | 4a4a52d | 2020-01-08 22:08:22 +0800 | [diff] [blame] | 631 | if (param->rx_mini_pending > VMXNET3_RXDATA_DESC_MAX_SIZE) |
Shrikrishna Khare | 50a5ce3 | 2016-06-16 10:51:56 -0700 | [diff] [blame] | 632 | return -EINVAL; |
Shrikrishna Khare | 50a5ce3 | 2016-06-16 10:51:56 -0700 | [diff] [blame] | 633 | } else if (param->rx_mini_pending != 0) { |
| 634 | return -EINVAL; |
| 635 | } |
| 636 | |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 637 | /* round it up to a multiple of VMXNET3_RING_SIZE_ALIGN */ |
| 638 | new_tx_ring_size = (param->tx_pending + VMXNET3_RING_SIZE_MASK) & |
| 639 | ~VMXNET3_RING_SIZE_MASK; |
| 640 | new_tx_ring_size = min_t(u32, new_tx_ring_size, |
| 641 | VMXNET3_TX_RING_MAX_SIZE); |
| 642 | if (new_tx_ring_size > VMXNET3_TX_RING_MAX_SIZE || (new_tx_ring_size % |
| 643 | VMXNET3_RING_SIZE_ALIGN) != 0) |
| 644 | return -EINVAL; |
| 645 | |
| 646 | /* ring0 has to be a multiple of |
| 647 | * rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN |
| 648 | */ |
| 649 | sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN; |
| 650 | new_rx_ring_size = (param->rx_pending + sz - 1) / sz * sz; |
| 651 | new_rx_ring_size = min_t(u32, new_rx_ring_size, |
| 652 | VMXNET3_RX_RING_MAX_SIZE / sz * sz); |
| 653 | if (new_rx_ring_size > VMXNET3_RX_RING_MAX_SIZE || (new_rx_ring_size % |
| 654 | sz) != 0) |
| 655 | return -EINVAL; |
| 656 | |
Shrikrishna Khare | 53831aa | 2015-01-06 09:20:15 -0800 | [diff] [blame] | 657 | /* ring2 has to be a multiple of VMXNET3_RING_SIZE_ALIGN */ |
| 658 | new_rx_ring2_size = (param->rx_jumbo_pending + VMXNET3_RING_SIZE_MASK) & |
| 659 | ~VMXNET3_RING_SIZE_MASK; |
| 660 | new_rx_ring2_size = min_t(u32, new_rx_ring2_size, |
| 661 | VMXNET3_RX_RING2_MAX_SIZE); |
| 662 | |
Shrikrishna Khare | 50a5ce3 | 2016-06-16 10:51:56 -0700 | [diff] [blame] | 663 | /* rx data ring buffer size has to be a multiple of |
| 664 | * VMXNET3_RXDATA_DESC_SIZE_ALIGN |
| 665 | */ |
| 666 | new_rxdata_desc_size = |
| 667 | (param->rx_mini_pending + VMXNET3_RXDATA_DESC_SIZE_MASK) & |
| 668 | ~VMXNET3_RXDATA_DESC_SIZE_MASK; |
| 669 | new_rxdata_desc_size = min_t(u16, new_rxdata_desc_size, |
| 670 | VMXNET3_RXDATA_DESC_MAX_SIZE); |
| 671 | |
Shrikrishna Khare | 53831aa | 2015-01-06 09:20:15 -0800 | [diff] [blame] | 672 | if (new_tx_ring_size == adapter->tx_ring_size && |
| 673 | new_rx_ring_size == adapter->rx_ring_size && |
Shrikrishna Khare | 50a5ce3 | 2016-06-16 10:51:56 -0700 | [diff] [blame] | 674 | new_rx_ring2_size == adapter->rx_ring2_size && |
| 675 | new_rxdata_desc_size == adapter->rxdata_desc_size) { |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 676 | return 0; |
| 677 | } |
| 678 | |
| 679 | /* |
| 680 | * Reset_work may be in the middle of resetting the device, wait for its |
| 681 | * completion. |
| 682 | */ |
| 683 | while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state)) |
YueHaibing | 93c65d1 | 2018-05-17 11:46:41 +0800 | [diff] [blame] | 684 | usleep_range(1000, 2000); |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 685 | |
| 686 | if (netif_running(netdev)) { |
| 687 | vmxnet3_quiesce_dev(adapter); |
| 688 | vmxnet3_reset_dev(adapter); |
| 689 | |
| 690 | /* recreate the rx queue and the tx queue based on the |
| 691 | * new sizes */ |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 692 | vmxnet3_tq_destroy_all(adapter); |
| 693 | vmxnet3_rq_destroy_all(adapter); |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 694 | |
| 695 | err = vmxnet3_create_queues(adapter, new_tx_ring_size, |
Shrikrishna Khare | 3c8b3ef | 2016-06-16 10:51:55 -0700 | [diff] [blame] | 696 | new_rx_ring_size, new_rx_ring2_size, |
Shrikrishna Khare | 50a5ce3 | 2016-06-16 10:51:56 -0700 | [diff] [blame] | 697 | adapter->txdata_desc_size, |
| 698 | new_rxdata_desc_size); |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 699 | if (err) { |
| 700 | /* failed, most likely because of OOM, try default |
| 701 | * size */ |
Stephen Hemminger | 204a6e6 | 2013-01-15 07:28:30 +0000 | [diff] [blame] | 702 | netdev_err(netdev, "failed to apply new sizes, " |
| 703 | "try the default ones\n"); |
Neil Horman | f00e2b0 | 2014-06-13 10:03:21 -0400 | [diff] [blame] | 704 | new_rx_ring_size = VMXNET3_DEF_RX_RING_SIZE; |
Shrikrishna Khare | 53831aa | 2015-01-06 09:20:15 -0800 | [diff] [blame] | 705 | new_rx_ring2_size = VMXNET3_DEF_RX_RING2_SIZE; |
Neil Horman | f00e2b0 | 2014-06-13 10:03:21 -0400 | [diff] [blame] | 706 | new_tx_ring_size = VMXNET3_DEF_TX_RING_SIZE; |
Shrikrishna Khare | 50a5ce3 | 2016-06-16 10:51:56 -0700 | [diff] [blame] | 707 | new_rxdata_desc_size = VMXNET3_VERSION_GE_3(adapter) ? |
| 708 | VMXNET3_DEF_RXDATA_DESC_SIZE : 0; |
| 709 | |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 710 | err = vmxnet3_create_queues(adapter, |
Neil Horman | f00e2b0 | 2014-06-13 10:03:21 -0400 | [diff] [blame] | 711 | new_tx_ring_size, |
| 712 | new_rx_ring_size, |
Shrikrishna Khare | 3c8b3ef | 2016-06-16 10:51:55 -0700 | [diff] [blame] | 713 | new_rx_ring2_size, |
Shrikrishna Khare | 50a5ce3 | 2016-06-16 10:51:56 -0700 | [diff] [blame] | 714 | adapter->txdata_desc_size, |
| 715 | new_rxdata_desc_size); |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 716 | if (err) { |
Stephen Hemminger | 204a6e6 | 2013-01-15 07:28:30 +0000 | [diff] [blame] | 717 | netdev_err(netdev, "failed to create queues " |
| 718 | "with default sizes. Closing it\n"); |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 719 | goto out; |
| 720 | } |
| 721 | } |
| 722 | |
| 723 | err = vmxnet3_activate_dev(adapter); |
| 724 | if (err) |
Stephen Hemminger | 204a6e6 | 2013-01-15 07:28:30 +0000 | [diff] [blame] | 725 | netdev_err(netdev, "failed to re-activate, error %d." |
| 726 | " Closing it\n", err); |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 727 | } |
Neil Horman | f00e2b0 | 2014-06-13 10:03:21 -0400 | [diff] [blame] | 728 | adapter->tx_ring_size = new_tx_ring_size; |
| 729 | adapter->rx_ring_size = new_rx_ring_size; |
Shrikrishna Khare | 53831aa | 2015-01-06 09:20:15 -0800 | [diff] [blame] | 730 | adapter->rx_ring2_size = new_rx_ring2_size; |
Shrikrishna Khare | 50a5ce3 | 2016-06-16 10:51:56 -0700 | [diff] [blame] | 731 | adapter->rxdata_desc_size = new_rxdata_desc_size; |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 732 | |
| 733 | out: |
| 734 | clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state); |
| 735 | if (err) |
| 736 | vmxnet3_force_close(adapter); |
| 737 | |
| 738 | return err; |
| 739 | } |
| 740 | |
Ronak Doshi | d3a8a9e | 2020-05-28 14:53:20 -0700 | [diff] [blame] | 741 | static int |
| 742 | vmxnet3_get_rss_hash_opts(struct vmxnet3_adapter *adapter, |
| 743 | struct ethtool_rxnfc *info) |
| 744 | { |
| 745 | enum Vmxnet3_RSSField rss_fields; |
| 746 | |
| 747 | if (netif_running(adapter->netdev)) { |
| 748 | unsigned long flags; |
| 749 | |
| 750 | spin_lock_irqsave(&adapter->cmd_lock, flags); |
| 751 | |
| 752 | VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, |
| 753 | VMXNET3_CMD_GET_RSS_FIELDS); |
| 754 | rss_fields = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD); |
| 755 | spin_unlock_irqrestore(&adapter->cmd_lock, flags); |
| 756 | } else { |
| 757 | rss_fields = adapter->rss_fields; |
| 758 | } |
| 759 | |
| 760 | info->data = 0; |
| 761 | |
| 762 | /* Report default options for RSS on vmxnet3 */ |
| 763 | switch (info->flow_type) { |
| 764 | case TCP_V4_FLOW: |
| 765 | case TCP_V6_FLOW: |
| 766 | info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3 | |
| 767 | RXH_IP_SRC | RXH_IP_DST; |
| 768 | break; |
| 769 | case UDP_V4_FLOW: |
| 770 | if (rss_fields & VMXNET3_RSS_FIELDS_UDPIP4) |
| 771 | info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; |
| 772 | info->data |= RXH_IP_SRC | RXH_IP_DST; |
| 773 | break; |
| 774 | case AH_ESP_V4_FLOW: |
| 775 | case AH_V4_FLOW: |
| 776 | case ESP_V4_FLOW: |
| 777 | if (rss_fields & VMXNET3_RSS_FIELDS_ESPIP4) |
| 778 | info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; |
Gustavo A. R. Silva | df561f66 | 2020-08-23 17:36:59 -0500 | [diff] [blame] | 779 | fallthrough; |
Ronak Doshi | d3a8a9e | 2020-05-28 14:53:20 -0700 | [diff] [blame] | 780 | case SCTP_V4_FLOW: |
| 781 | case IPV4_FLOW: |
| 782 | info->data |= RXH_IP_SRC | RXH_IP_DST; |
| 783 | break; |
| 784 | case UDP_V6_FLOW: |
| 785 | if (rss_fields & VMXNET3_RSS_FIELDS_UDPIP6) |
| 786 | info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; |
| 787 | info->data |= RXH_IP_SRC | RXH_IP_DST; |
| 788 | break; |
| 789 | case AH_ESP_V6_FLOW: |
| 790 | case AH_V6_FLOW: |
| 791 | case ESP_V6_FLOW: |
Ronak Doshi | 79d124b | 2021-07-16 15:36:23 -0700 | [diff] [blame] | 792 | if (VMXNET3_VERSION_GE_6(adapter) && |
| 793 | (rss_fields & VMXNET3_RSS_FIELDS_ESPIP6)) |
| 794 | info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; |
| 795 | fallthrough; |
Ronak Doshi | d3a8a9e | 2020-05-28 14:53:20 -0700 | [diff] [blame] | 796 | case SCTP_V6_FLOW: |
| 797 | case IPV6_FLOW: |
| 798 | info->data |= RXH_IP_SRC | RXH_IP_DST; |
| 799 | break; |
| 800 | default: |
| 801 | return -EINVAL; |
| 802 | } |
| 803 | |
| 804 | return 0; |
| 805 | } |
| 806 | |
| 807 | static int |
| 808 | vmxnet3_set_rss_hash_opt(struct net_device *netdev, |
| 809 | struct vmxnet3_adapter *adapter, |
| 810 | struct ethtool_rxnfc *nfc) |
| 811 | { |
| 812 | enum Vmxnet3_RSSField rss_fields = adapter->rss_fields; |
| 813 | |
| 814 | /* RSS does not support anything other than hashing |
| 815 | * to queues on src and dst IPs and ports |
| 816 | */ |
| 817 | if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | |
| 818 | RXH_L4_B_0_1 | RXH_L4_B_2_3)) |
| 819 | return -EINVAL; |
| 820 | |
| 821 | switch (nfc->flow_type) { |
| 822 | case TCP_V4_FLOW: |
| 823 | case TCP_V6_FLOW: |
| 824 | if (!(nfc->data & RXH_IP_SRC) || |
| 825 | !(nfc->data & RXH_IP_DST) || |
| 826 | !(nfc->data & RXH_L4_B_0_1) || |
| 827 | !(nfc->data & RXH_L4_B_2_3)) |
| 828 | return -EINVAL; |
| 829 | break; |
| 830 | case UDP_V4_FLOW: |
| 831 | if (!(nfc->data & RXH_IP_SRC) || |
| 832 | !(nfc->data & RXH_IP_DST)) |
| 833 | return -EINVAL; |
| 834 | switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { |
| 835 | case 0: |
| 836 | rss_fields &= ~VMXNET3_RSS_FIELDS_UDPIP4; |
| 837 | break; |
| 838 | case (RXH_L4_B_0_1 | RXH_L4_B_2_3): |
| 839 | rss_fields |= VMXNET3_RSS_FIELDS_UDPIP4; |
| 840 | break; |
| 841 | default: |
| 842 | return -EINVAL; |
| 843 | } |
| 844 | break; |
| 845 | case UDP_V6_FLOW: |
| 846 | if (!(nfc->data & RXH_IP_SRC) || |
| 847 | !(nfc->data & RXH_IP_DST)) |
| 848 | return -EINVAL; |
| 849 | switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { |
| 850 | case 0: |
| 851 | rss_fields &= ~VMXNET3_RSS_FIELDS_UDPIP6; |
| 852 | break; |
| 853 | case (RXH_L4_B_0_1 | RXH_L4_B_2_3): |
| 854 | rss_fields |= VMXNET3_RSS_FIELDS_UDPIP6; |
| 855 | break; |
| 856 | default: |
| 857 | return -EINVAL; |
| 858 | } |
| 859 | break; |
| 860 | case ESP_V4_FLOW: |
| 861 | case AH_V4_FLOW: |
| 862 | case AH_ESP_V4_FLOW: |
| 863 | if (!(nfc->data & RXH_IP_SRC) || |
| 864 | !(nfc->data & RXH_IP_DST)) |
| 865 | return -EINVAL; |
| 866 | switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { |
| 867 | case 0: |
| 868 | rss_fields &= ~VMXNET3_RSS_FIELDS_ESPIP4; |
| 869 | break; |
| 870 | case (RXH_L4_B_0_1 | RXH_L4_B_2_3): |
| 871 | rss_fields |= VMXNET3_RSS_FIELDS_ESPIP4; |
| 872 | break; |
| 873 | default: |
| 874 | return -EINVAL; |
| 875 | } |
| 876 | break; |
| 877 | case ESP_V6_FLOW: |
| 878 | case AH_V6_FLOW: |
| 879 | case AH_ESP_V6_FLOW: |
Ronak Doshi | 79d124b | 2021-07-16 15:36:23 -0700 | [diff] [blame] | 880 | if (!VMXNET3_VERSION_GE_6(adapter)) |
| 881 | return -EOPNOTSUPP; |
| 882 | if (!(nfc->data & RXH_IP_SRC) || |
| 883 | !(nfc->data & RXH_IP_DST)) |
| 884 | return -EINVAL; |
| 885 | switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { |
| 886 | case 0: |
| 887 | rss_fields &= ~VMXNET3_RSS_FIELDS_ESPIP6; |
| 888 | break; |
| 889 | case (RXH_L4_B_0_1 | RXH_L4_B_2_3): |
| 890 | rss_fields |= VMXNET3_RSS_FIELDS_ESPIP6; |
| 891 | break; |
| 892 | default: |
| 893 | return -EINVAL; |
| 894 | } |
| 895 | break; |
Ronak Doshi | d3a8a9e | 2020-05-28 14:53:20 -0700 | [diff] [blame] | 896 | case SCTP_V4_FLOW: |
| 897 | case SCTP_V6_FLOW: |
| 898 | if (!(nfc->data & RXH_IP_SRC) || |
| 899 | !(nfc->data & RXH_IP_DST) || |
| 900 | (nfc->data & RXH_L4_B_0_1) || |
| 901 | (nfc->data & RXH_L4_B_2_3)) |
| 902 | return -EINVAL; |
| 903 | break; |
| 904 | default: |
| 905 | return -EINVAL; |
| 906 | } |
| 907 | |
| 908 | /* if we changed something we need to update flags */ |
| 909 | if (rss_fields != adapter->rss_fields) { |
| 910 | adapter->default_rss_fields = false; |
| 911 | if (netif_running(netdev)) { |
| 912 | struct Vmxnet3_DriverShared *shared = adapter->shared; |
| 913 | union Vmxnet3_CmdInfo *cmdInfo = &shared->cu.cmdInfo; |
| 914 | unsigned long flags; |
| 915 | |
| 916 | spin_lock_irqsave(&adapter->cmd_lock, flags); |
| 917 | cmdInfo->setRssFields = rss_fields; |
| 918 | VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, |
| 919 | VMXNET3_CMD_SET_RSS_FIELDS); |
| 920 | |
| 921 | /* Not all requested RSS may get applied, so get and |
| 922 | * cache what was actually applied. |
| 923 | */ |
| 924 | VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, |
| 925 | VMXNET3_CMD_GET_RSS_FIELDS); |
| 926 | adapter->rss_fields = |
| 927 | VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD); |
| 928 | spin_unlock_irqrestore(&adapter->cmd_lock, flags); |
| 929 | } else { |
| 930 | /* When the device is activated, we will try to apply |
| 931 | * these rules and cache the applied value later. |
| 932 | */ |
| 933 | adapter->rss_fields = rss_fields; |
| 934 | } |
| 935 | } |
| 936 | return 0; |
| 937 | } |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 938 | |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 939 | static int |
| 940 | vmxnet3_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info, |
Ben Hutchings | 815c7db | 2011-09-06 13:49:12 +0000 | [diff] [blame] | 941 | u32 *rules) |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 942 | { |
| 943 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
Ronak Doshi | d3a8a9e | 2020-05-28 14:53:20 -0700 | [diff] [blame] | 944 | int err = 0; |
| 945 | |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 946 | switch (info->cmd) { |
| 947 | case ETHTOOL_GRXRINGS: |
| 948 | info->data = adapter->num_rx_queues; |
Ronak Doshi | d3a8a9e | 2020-05-28 14:53:20 -0700 | [diff] [blame] | 949 | break; |
| 950 | case ETHTOOL_GRXFH: |
| 951 | if (!VMXNET3_VERSION_GE_4(adapter)) { |
| 952 | err = -EOPNOTSUPP; |
| 953 | break; |
| 954 | } |
Ronak Doshi | 11e877b | 2020-06-01 20:02:39 -0700 | [diff] [blame] | 955 | #ifdef VMXNET3_RSS |
| 956 | if (!adapter->rss) { |
| 957 | err = -EOPNOTSUPP; |
| 958 | break; |
| 959 | } |
| 960 | #endif |
Ronak Doshi | d3a8a9e | 2020-05-28 14:53:20 -0700 | [diff] [blame] | 961 | err = vmxnet3_get_rss_hash_opts(adapter, info); |
| 962 | break; |
| 963 | default: |
| 964 | err = -EOPNOTSUPP; |
| 965 | break; |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 966 | } |
Ronak Doshi | d3a8a9e | 2020-05-28 14:53:20 -0700 | [diff] [blame] | 967 | |
| 968 | return err; |
| 969 | } |
| 970 | |
| 971 | static int |
| 972 | vmxnet3_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info) |
| 973 | { |
| 974 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
| 975 | int err = 0; |
| 976 | |
| 977 | if (!VMXNET3_VERSION_GE_4(adapter)) { |
| 978 | err = -EOPNOTSUPP; |
| 979 | goto done; |
| 980 | } |
Ronak Doshi | 11e877b | 2020-06-01 20:02:39 -0700 | [diff] [blame] | 981 | #ifdef VMXNET3_RSS |
| 982 | if (!adapter->rss) { |
| 983 | err = -EOPNOTSUPP; |
| 984 | goto done; |
| 985 | } |
| 986 | #endif |
Ronak Doshi | d3a8a9e | 2020-05-28 14:53:20 -0700 | [diff] [blame] | 987 | |
| 988 | switch (info->cmd) { |
| 989 | case ETHTOOL_SRXFH: |
| 990 | err = vmxnet3_set_rss_hash_opt(netdev, adapter, info); |
| 991 | break; |
| 992 | default: |
| 993 | err = -EOPNOTSUPP; |
| 994 | break; |
| 995 | } |
| 996 | |
| 997 | done: |
| 998 | return err; |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 999 | } |
| 1000 | |
Scott J. Goldman | e9248fb | 2010-11-27 10:33:55 +0000 | [diff] [blame] | 1001 | #ifdef VMXNET3_RSS |
Ben Hutchings | 7850f63 | 2011-12-15 13:55:01 +0000 | [diff] [blame] | 1002 | static u32 |
| 1003 | vmxnet3_get_rss_indir_size(struct net_device *netdev) |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 1004 | { |
| 1005 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
| 1006 | struct UPT1_RSSConf *rssConf = adapter->rss_conf; |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 1007 | |
Ben Hutchings | 7850f63 | 2011-12-15 13:55:01 +0000 | [diff] [blame] | 1008 | return rssConf->indTableSize; |
| 1009 | } |
| 1010 | |
| 1011 | static int |
Eyal Perry | 892311f | 2014-12-02 18:12:10 +0200 | [diff] [blame] | 1012 | vmxnet3_get_rss(struct net_device *netdev, u32 *p, u8 *key, u8 *hfunc) |
Ben Hutchings | 7850f63 | 2011-12-15 13:55:01 +0000 | [diff] [blame] | 1013 | { |
| 1014 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
| 1015 | struct UPT1_RSSConf *rssConf = adapter->rss_conf; |
| 1016 | unsigned int n = rssConf->indTableSize; |
| 1017 | |
Eyal Perry | 892311f | 2014-12-02 18:12:10 +0200 | [diff] [blame] | 1018 | if (hfunc) |
| 1019 | *hfunc = ETH_RSS_HASH_TOP; |
| 1020 | if (!p) |
| 1021 | return 0; |
Jia-Ju Bai | 3e1c684 | 2020-05-30 10:41:50 +0800 | [diff] [blame] | 1022 | if (n > UPT1_RSS_MAX_IND_TABLE_SIZE) |
| 1023 | return 0; |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 1024 | while (n--) |
Ben Hutchings | 7850f63 | 2011-12-15 13:55:01 +0000 | [diff] [blame] | 1025 | p[n] = rssConf->indTable[n]; |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 1026 | return 0; |
| 1027 | |
| 1028 | } |
| 1029 | |
| 1030 | static int |
Eyal Perry | 892311f | 2014-12-02 18:12:10 +0200 | [diff] [blame] | 1031 | vmxnet3_set_rss(struct net_device *netdev, const u32 *p, const u8 *key, |
| 1032 | const u8 hfunc) |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 1033 | { |
| 1034 | unsigned int i; |
Shreyas Bhatewara | 83d0fef | 2011-01-14 14:59:57 +0000 | [diff] [blame] | 1035 | unsigned long flags; |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 1036 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
| 1037 | struct UPT1_RSSConf *rssConf = adapter->rss_conf; |
| 1038 | |
Eyal Perry | 892311f | 2014-12-02 18:12:10 +0200 | [diff] [blame] | 1039 | /* We do not allow change in unsupported parameters */ |
| 1040 | if (key || |
| 1041 | (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) |
| 1042 | return -EOPNOTSUPP; |
| 1043 | if (!p) |
| 1044 | return 0; |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 1045 | for (i = 0; i < rssConf->indTableSize; i++) |
Ben Hutchings | 7850f63 | 2011-12-15 13:55:01 +0000 | [diff] [blame] | 1046 | rssConf->indTable[i] = p[i]; |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 1047 | |
Shreyas Bhatewara | 83d0fef | 2011-01-14 14:59:57 +0000 | [diff] [blame] | 1048 | spin_lock_irqsave(&adapter->cmd_lock, flags); |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 1049 | VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, |
| 1050 | VMXNET3_CMD_UPDATE_RSSIDT); |
Shreyas Bhatewara | 83d0fef | 2011-01-14 14:59:57 +0000 | [diff] [blame] | 1051 | spin_unlock_irqrestore(&adapter->cmd_lock, flags); |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 1052 | |
| 1053 | return 0; |
| 1054 | |
| 1055 | } |
Scott J. Goldman | e9248fb | 2010-11-27 10:33:55 +0000 | [diff] [blame] | 1056 | #endif |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 1057 | |
Yufeng Mo | f3ccfda1 | 2021-08-20 15:35:18 +0800 | [diff] [blame] | 1058 | static int vmxnet3_get_coalesce(struct net_device *netdev, |
| 1059 | struct ethtool_coalesce *ec, |
| 1060 | struct kernel_ethtool_coalesce *kernel_coal, |
| 1061 | struct netlink_ext_ack *extack) |
Shrikrishna Khare | 4edef40e | 2016-06-16 10:51:57 -0700 | [diff] [blame] | 1062 | { |
| 1063 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
| 1064 | |
| 1065 | if (!VMXNET3_VERSION_GE_3(adapter)) |
| 1066 | return -EOPNOTSUPP; |
| 1067 | |
| 1068 | switch (adapter->coal_conf->coalMode) { |
| 1069 | case VMXNET3_COALESCE_DISABLED: |
| 1070 | /* struct ethtool_coalesce is already initialized to 0 */ |
| 1071 | break; |
| 1072 | case VMXNET3_COALESCE_ADAPT: |
| 1073 | ec->use_adaptive_rx_coalesce = true; |
| 1074 | break; |
| 1075 | case VMXNET3_COALESCE_STATIC: |
| 1076 | ec->tx_max_coalesced_frames = |
| 1077 | adapter->coal_conf->coalPara.coalStatic.tx_comp_depth; |
| 1078 | ec->rx_max_coalesced_frames = |
| 1079 | adapter->coal_conf->coalPara.coalStatic.rx_depth; |
| 1080 | break; |
| 1081 | case VMXNET3_COALESCE_RBC: { |
| 1082 | u32 rbc_rate; |
| 1083 | |
| 1084 | rbc_rate = adapter->coal_conf->coalPara.coalRbc.rbc_rate; |
| 1085 | ec->rx_coalesce_usecs = VMXNET3_COAL_RBC_USECS(rbc_rate); |
| 1086 | } |
| 1087 | break; |
| 1088 | default: |
| 1089 | return -EOPNOTSUPP; |
| 1090 | } |
| 1091 | |
| 1092 | return 0; |
| 1093 | } |
| 1094 | |
Yufeng Mo | f3ccfda1 | 2021-08-20 15:35:18 +0800 | [diff] [blame] | 1095 | static int vmxnet3_set_coalesce(struct net_device *netdev, |
| 1096 | struct ethtool_coalesce *ec, |
| 1097 | struct kernel_ethtool_coalesce *kernel_coal, |
| 1098 | struct netlink_ext_ack *extack) |
Shrikrishna Khare | 4edef40e | 2016-06-16 10:51:57 -0700 | [diff] [blame] | 1099 | { |
| 1100 | struct vmxnet3_adapter *adapter = netdev_priv(netdev); |
| 1101 | struct Vmxnet3_DriverShared *shared = adapter->shared; |
| 1102 | union Vmxnet3_CmdInfo *cmdInfo = &shared->cu.cmdInfo; |
| 1103 | unsigned long flags; |
| 1104 | |
| 1105 | if (!VMXNET3_VERSION_GE_3(adapter)) |
| 1106 | return -EOPNOTSUPP; |
| 1107 | |
Shrikrishna Khare | 4edef40e | 2016-06-16 10:51:57 -0700 | [diff] [blame] | 1108 | if ((ec->rx_coalesce_usecs == 0) && |
| 1109 | (ec->use_adaptive_rx_coalesce == 0) && |
| 1110 | (ec->tx_max_coalesced_frames == 0) && |
| 1111 | (ec->rx_max_coalesced_frames == 0)) { |
| 1112 | memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf)); |
| 1113 | adapter->coal_conf->coalMode = VMXNET3_COALESCE_DISABLED; |
| 1114 | goto done; |
| 1115 | } |
| 1116 | |
| 1117 | if (ec->rx_coalesce_usecs != 0) { |
| 1118 | u32 rbc_rate; |
| 1119 | |
| 1120 | if ((ec->use_adaptive_rx_coalesce != 0) || |
| 1121 | (ec->tx_max_coalesced_frames != 0) || |
| 1122 | (ec->rx_max_coalesced_frames != 0)) { |
| 1123 | return -EINVAL; |
| 1124 | } |
| 1125 | |
| 1126 | rbc_rate = VMXNET3_COAL_RBC_RATE(ec->rx_coalesce_usecs); |
| 1127 | if (rbc_rate < VMXNET3_COAL_RBC_MIN_RATE || |
| 1128 | rbc_rate > VMXNET3_COAL_RBC_MAX_RATE) { |
| 1129 | return -EINVAL; |
| 1130 | } |
| 1131 | |
| 1132 | memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf)); |
| 1133 | adapter->coal_conf->coalMode = VMXNET3_COALESCE_RBC; |
| 1134 | adapter->coal_conf->coalPara.coalRbc.rbc_rate = rbc_rate; |
| 1135 | goto done; |
| 1136 | } |
| 1137 | |
| 1138 | if (ec->use_adaptive_rx_coalesce != 0) { |
Jean Sacren | 1d6d336 | 2021-10-30 19:27:28 -0600 | [diff] [blame] | 1139 | if (ec->tx_max_coalesced_frames != 0 || |
| 1140 | ec->rx_max_coalesced_frames != 0) { |
Shrikrishna Khare | 4edef40e | 2016-06-16 10:51:57 -0700 | [diff] [blame] | 1141 | return -EINVAL; |
| 1142 | } |
| 1143 | memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf)); |
| 1144 | adapter->coal_conf->coalMode = VMXNET3_COALESCE_ADAPT; |
| 1145 | goto done; |
| 1146 | } |
| 1147 | |
| 1148 | if ((ec->tx_max_coalesced_frames != 0) || |
| 1149 | (ec->rx_max_coalesced_frames != 0)) { |
Shrikrishna Khare | 4edef40e | 2016-06-16 10:51:57 -0700 | [diff] [blame] | 1150 | if ((ec->tx_max_coalesced_frames > |
| 1151 | VMXNET3_COAL_STATIC_MAX_DEPTH) || |
| 1152 | (ec->rx_max_coalesced_frames > |
| 1153 | VMXNET3_COAL_STATIC_MAX_DEPTH)) { |
| 1154 | return -EINVAL; |
| 1155 | } |
| 1156 | |
| 1157 | memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf)); |
| 1158 | adapter->coal_conf->coalMode = VMXNET3_COALESCE_STATIC; |
| 1159 | |
| 1160 | adapter->coal_conf->coalPara.coalStatic.tx_comp_depth = |
| 1161 | (ec->tx_max_coalesced_frames ? |
| 1162 | ec->tx_max_coalesced_frames : |
| 1163 | VMXNET3_COAL_STATIC_DEFAULT_DEPTH); |
| 1164 | |
| 1165 | adapter->coal_conf->coalPara.coalStatic.rx_depth = |
| 1166 | (ec->rx_max_coalesced_frames ? |
| 1167 | ec->rx_max_coalesced_frames : |
| 1168 | VMXNET3_COAL_STATIC_DEFAULT_DEPTH); |
| 1169 | |
| 1170 | adapter->coal_conf->coalPara.coalStatic.tx_depth = |
| 1171 | VMXNET3_COAL_STATIC_DEFAULT_DEPTH; |
| 1172 | goto done; |
| 1173 | } |
| 1174 | |
| 1175 | done: |
| 1176 | adapter->default_coal_mode = false; |
| 1177 | if (netif_running(netdev)) { |
| 1178 | spin_lock_irqsave(&adapter->cmd_lock, flags); |
| 1179 | cmdInfo->varConf.confVer = 1; |
| 1180 | cmdInfo->varConf.confLen = |
| 1181 | cpu_to_le32(sizeof(*adapter->coal_conf)); |
| 1182 | cmdInfo->varConf.confPA = cpu_to_le64(adapter->coal_conf_pa); |
| 1183 | VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, |
| 1184 | VMXNET3_CMD_SET_COALESCE); |
| 1185 | spin_unlock_irqrestore(&adapter->cmd_lock, flags); |
| 1186 | } |
| 1187 | |
| 1188 | return 0; |
| 1189 | } |
| 1190 | |
stephen hemminger | c8b88ef | 2012-01-04 11:58:13 +0000 | [diff] [blame] | 1191 | static const struct ethtool_ops vmxnet3_ethtool_ops = { |
Jakub Kicinski | 0f3883b | 2020-03-05 17:06:00 -0800 | [diff] [blame] | 1192 | .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS | |
| 1193 | ETHTOOL_COALESCE_MAX_FRAMES | |
| 1194 | ETHTOOL_COALESCE_USE_ADAPTIVE_RX, |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 1195 | .get_drvinfo = vmxnet3_get_drvinfo, |
| 1196 | .get_regs_len = vmxnet3_get_regs_len, |
| 1197 | .get_regs = vmxnet3_get_regs, |
| 1198 | .get_wol = vmxnet3_get_wol, |
| 1199 | .set_wol = vmxnet3_set_wol, |
| 1200 | .get_link = ethtool_op_get_link, |
Shrikrishna Khare | 4edef40e | 2016-06-16 10:51:57 -0700 | [diff] [blame] | 1201 | .get_coalesce = vmxnet3_get_coalesce, |
| 1202 | .set_coalesce = vmxnet3_set_coalesce, |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 1203 | .get_strings = vmxnet3_get_strings, |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 1204 | .get_sset_count = vmxnet3_get_sset_count, |
| 1205 | .get_ethtool_stats = vmxnet3_get_ethtool_stats, |
| 1206 | .get_ringparam = vmxnet3_get_ringparam, |
| 1207 | .set_ringparam = vmxnet3_set_ringparam, |
Shreyas Bhatewara | 09c5088 | 2010-11-19 10:55:24 +0000 | [diff] [blame] | 1208 | .get_rxnfc = vmxnet3_get_rxnfc, |
Ronak Doshi | d3a8a9e | 2020-05-28 14:53:20 -0700 | [diff] [blame] | 1209 | .set_rxnfc = vmxnet3_set_rxnfc, |
Scott J. Goldman | e9248fb | 2010-11-27 10:33:55 +0000 | [diff] [blame] | 1210 | #ifdef VMXNET3_RSS |
Ben Hutchings | 7850f63 | 2011-12-15 13:55:01 +0000 | [diff] [blame] | 1211 | .get_rxfh_indir_size = vmxnet3_get_rss_indir_size, |
Ben Hutchings | fe62d00 | 2014-05-15 01:25:27 +0100 | [diff] [blame] | 1212 | .get_rxfh = vmxnet3_get_rss, |
| 1213 | .set_rxfh = vmxnet3_set_rss, |
Scott J. Goldman | e9248fb | 2010-11-27 10:33:55 +0000 | [diff] [blame] | 1214 | #endif |
Philippe Reynes | 3426bd7 | 2017-03-22 08:27:57 +0100 | [diff] [blame] | 1215 | .get_link_ksettings = vmxnet3_get_link_ksettings, |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 1216 | }; |
| 1217 | |
| 1218 | void vmxnet3_set_ethtool_ops(struct net_device *netdev) |
| 1219 | { |
Wilfried Klaebe | 7ad24ea | 2014-05-11 00:12:32 +0000 | [diff] [blame] | 1220 | netdev->ethtool_ops = &vmxnet3_ethtool_ops; |
Shreyas Bhatewara | d1a890fa | 2009-10-13 00:15:51 -0700 | [diff] [blame] | 1221 | } |