Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright(c) 2017 Intel Corporation. |
| 3 | * |
| 4 | * This file is provided under a dual BSD/GPLv2 license. When using or |
| 5 | * redistributing this file, you may do so under either license. |
| 6 | * |
| 7 | * GPL LICENSE SUMMARY |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of version 2 of the GNU General Public License as |
| 11 | * published by the Free Software Foundation. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, but |
| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * General Public License for more details. |
| 17 | * |
| 18 | * BSD LICENSE |
| 19 | * |
| 20 | * Redistribution and use in source and binary forms, with or without |
| 21 | * modification, are permitted provided that the following conditions |
| 22 | * are met: |
| 23 | * |
| 24 | * - Redistributions of source code must retain the above copyright |
| 25 | * notice, this list of conditions and the following disclaimer. |
| 26 | * - Redistributions in binary form must reproduce the above copyright |
| 27 | * notice, this list of conditions and the following disclaimer in |
| 28 | * the documentation and/or other materials provided with the |
| 29 | * distribution. |
| 30 | * - Neither the name of Intel Corporation nor the names of its |
| 31 | * contributors may be used to endorse or promote products derived |
| 32 | * from this software without specific prior written permission. |
| 33 | * |
| 34 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 35 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 36 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 37 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 38 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 39 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 40 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 41 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 42 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 43 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 44 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 45 | * |
| 46 | */ |
| 47 | |
| 48 | /* |
| 49 | * This file contains OPA Virtual Network Interface Controller (VNIC) driver |
| 50 | * netdev functionality. |
| 51 | */ |
| 52 | |
| 53 | #include <linux/module.h> |
| 54 | #include <linux/if_vlan.h> |
Vishwanathapura, Niranjana | cfd34f8 | 2017-04-12 20:29:26 -0700 | [diff] [blame] | 55 | #include <linux/crc32.h> |
Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 56 | |
| 57 | #include "opa_vnic_internal.h" |
| 58 | |
| 59 | #define OPA_TX_TIMEOUT_MS 1000 |
| 60 | |
| 61 | #define OPA_VNIC_SKB_HEADROOM \ |
| 62 | ALIGN((OPA_VNIC_HDR_LEN + OPA_VNIC_SKB_MDATA_LEN), 8) |
| 63 | |
Vishwanathapura, Niranjana | 009b7dd | 2017-04-12 20:29:24 -0700 | [diff] [blame] | 64 | /* This function is overloaded for opa_vnic specific implementation */ |
| 65 | static void opa_vnic_get_stats64(struct net_device *netdev, |
| 66 | struct rtnl_link_stats64 *stats) |
| 67 | { |
| 68 | struct opa_vnic_adapter *adapter = opa_vnic_priv(netdev); |
| 69 | struct opa_vnic_stats vstats; |
| 70 | |
| 71 | memset(&vstats, 0, sizeof(vstats)); |
Vishwanathapura, Niranjana | a379d69 | 2017-06-14 12:34:42 -0700 | [diff] [blame] | 72 | spin_lock(&adapter->stats_lock); |
Vishwanathapura, Niranjana | 009b7dd | 2017-04-12 20:29:24 -0700 | [diff] [blame] | 73 | adapter->rn_ops->ndo_get_stats64(netdev, &vstats.netstats); |
Vishwanathapura, Niranjana | a379d69 | 2017-06-14 12:34:42 -0700 | [diff] [blame] | 74 | spin_unlock(&adapter->stats_lock); |
Vishwanathapura, Niranjana | 009b7dd | 2017-04-12 20:29:24 -0700 | [diff] [blame] | 75 | memcpy(stats, &vstats.netstats, sizeof(*stats)); |
| 76 | } |
| 77 | |
Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 78 | /* opa_netdev_start_xmit - transmit function */ |
| 79 | static netdev_tx_t opa_netdev_start_xmit(struct sk_buff *skb, |
| 80 | struct net_device *netdev) |
| 81 | { |
| 82 | struct opa_vnic_adapter *adapter = opa_vnic_priv(netdev); |
| 83 | |
| 84 | v_dbg("xmit: queue %d skb len %d\n", skb->queue_mapping, skb->len); |
| 85 | /* pad to ensure mininum ethernet packet length */ |
| 86 | if (unlikely(skb->len < ETH_ZLEN)) { |
| 87 | if (skb_padto(skb, ETH_ZLEN)) |
| 88 | return NETDEV_TX_OK; |
| 89 | |
| 90 | skb_put(skb, ETH_ZLEN - skb->len); |
| 91 | } |
| 92 | |
| 93 | opa_vnic_encap_skb(adapter, skb); |
| 94 | return adapter->rn_ops->ndo_start_xmit(skb, netdev); |
| 95 | } |
| 96 | |
| 97 | static u16 opa_vnic_select_queue(struct net_device *netdev, struct sk_buff *skb, |
Alexander Duyck | 4f49dec | 2018-07-09 12:19:59 -0400 | [diff] [blame] | 98 | struct net_device *sb_dev, |
Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 99 | select_queue_fallback_t fallback) |
| 100 | { |
| 101 | struct opa_vnic_adapter *adapter = opa_vnic_priv(netdev); |
| 102 | struct opa_vnic_skb_mdata *mdata; |
| 103 | int rc; |
| 104 | |
| 105 | /* pass entropy and vl as metadata in skb */ |
Johannes Berg | d58ff35 | 2017-06-16 14:29:23 +0200 | [diff] [blame] | 106 | mdata = skb_push(skb, sizeof(*mdata)); |
Alexander Duyck | d80d8d5 | 2018-04-27 14:06:35 -0400 | [diff] [blame] | 107 | mdata->entropy = opa_vnic_calc_entropy(skb); |
Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 108 | mdata->vl = opa_vnic_get_vl(adapter, skb); |
| 109 | rc = adapter->rn_ops->ndo_select_queue(netdev, skb, |
Alexander Duyck | 4f49dec | 2018-07-09 12:19:59 -0400 | [diff] [blame] | 110 | sb_dev, fallback); |
Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 111 | skb_pull(skb, sizeof(*mdata)); |
| 112 | return rc; |
| 113 | } |
| 114 | |
Niranjana Vishwanathapura | e82b7c3 | 2017-09-26 06:44:20 -0700 | [diff] [blame] | 115 | static void opa_vnic_update_state(struct opa_vnic_adapter *adapter, bool up) |
| 116 | { |
| 117 | struct __opa_veswport_info *info = &adapter->info; |
| 118 | |
| 119 | mutex_lock(&adapter->lock); |
| 120 | /* Operational state can only be DROP_ALL or FORWARDING */ |
| 121 | if ((info->vport.config_state == OPA_VNIC_STATE_FORWARDING) && up) { |
| 122 | info->vport.oper_state = OPA_VNIC_STATE_FORWARDING; |
| 123 | info->vport.eth_link_status = OPA_VNIC_ETH_LINK_UP; |
| 124 | } else { |
| 125 | info->vport.oper_state = OPA_VNIC_STATE_DROP_ALL; |
| 126 | info->vport.eth_link_status = OPA_VNIC_ETH_LINK_DOWN; |
| 127 | } |
| 128 | |
| 129 | if (info->vport.config_state == OPA_VNIC_STATE_FORWARDING) |
| 130 | netif_dormant_off(adapter->netdev); |
| 131 | else |
| 132 | netif_dormant_on(adapter->netdev); |
| 133 | mutex_unlock(&adapter->lock); |
| 134 | } |
| 135 | |
Vishwanathapura, Niranjana | cfd34f8 | 2017-04-12 20:29:26 -0700 | [diff] [blame] | 136 | /* opa_vnic_process_vema_config - process vema configuration updates */ |
| 137 | void opa_vnic_process_vema_config(struct opa_vnic_adapter *adapter) |
| 138 | { |
| 139 | struct __opa_veswport_info *info = &adapter->info; |
| 140 | struct rdma_netdev *rn = netdev_priv(adapter->netdev); |
| 141 | u8 port_num[OPA_VESW_MAX_NUM_DEF_PORT] = { 0 }; |
| 142 | struct net_device *netdev = adapter->netdev; |
| 143 | u8 i, port_count = 0; |
| 144 | u16 port_mask; |
| 145 | |
| 146 | /* If the base_mac_addr is changed, update the interface mac address */ |
| 147 | if (memcmp(info->vport.base_mac_addr, adapter->vema_mac_addr, |
| 148 | ARRAY_SIZE(info->vport.base_mac_addr))) { |
| 149 | struct sockaddr saddr; |
| 150 | |
| 151 | memcpy(saddr.sa_data, info->vport.base_mac_addr, |
| 152 | ARRAY_SIZE(info->vport.base_mac_addr)); |
| 153 | mutex_lock(&adapter->lock); |
Niranjana Vishwanathapura | 5a5a85d | 2017-09-26 06:44:01 -0700 | [diff] [blame] | 154 | eth_commit_mac_addr_change(netdev, &saddr); |
Vishwanathapura, Niranjana | cfd34f8 | 2017-04-12 20:29:26 -0700 | [diff] [blame] | 155 | memcpy(adapter->vema_mac_addr, |
| 156 | info->vport.base_mac_addr, ETH_ALEN); |
| 157 | mutex_unlock(&adapter->lock); |
| 158 | } |
| 159 | |
| 160 | rn->set_id(netdev, info->vesw.vesw_id); |
| 161 | |
| 162 | /* Handle MTU limit change */ |
| 163 | rtnl_lock(); |
Niranjana Vishwanathapura | 62f1e84 | 2017-09-26 06:43:48 -0700 | [diff] [blame] | 164 | netdev->max_mtu = max_t(unsigned int, info->vesw.eth_mtu, |
Vishwanathapura, Niranjana | cfd34f8 | 2017-04-12 20:29:26 -0700 | [diff] [blame] | 165 | netdev->min_mtu); |
| 166 | if (netdev->mtu > netdev->max_mtu) |
| 167 | dev_set_mtu(netdev, netdev->max_mtu); |
| 168 | rtnl_unlock(); |
| 169 | |
| 170 | /* Update flow to default port redirection table */ |
| 171 | port_mask = info->vesw.def_port_mask; |
| 172 | for (i = 0; i < OPA_VESW_MAX_NUM_DEF_PORT; i++) { |
| 173 | if (port_mask & 1) |
| 174 | port_num[port_count++] = i; |
| 175 | port_mask >>= 1; |
| 176 | } |
| 177 | |
| 178 | /* |
| 179 | * Build the flow table. Flow table is required when destination LID |
| 180 | * is not available. Up to OPA_VNIC_FLOW_TBL_SIZE flows supported. |
| 181 | * Each flow need a default port number to get its dlid from the |
| 182 | * u_ucast_dlid array. |
| 183 | */ |
| 184 | for (i = 0; i < OPA_VNIC_FLOW_TBL_SIZE; i++) |
| 185 | adapter->flow_tbl[i] = port_count ? port_num[i % port_count] : |
| 186 | OPA_VNIC_INVALID_PORT; |
| 187 | |
Niranjana Vishwanathapura | e82b7c3 | 2017-09-26 06:44:20 -0700 | [diff] [blame] | 188 | /* update state */ |
| 189 | opa_vnic_update_state(adapter, !!(netdev->flags & IFF_UP)); |
Vishwanathapura, Niranjana | cfd34f8 | 2017-04-12 20:29:26 -0700 | [diff] [blame] | 190 | } |
| 191 | |
| 192 | /* |
| 193 | * Set the power on default values in adapter's vema interface structure. |
| 194 | */ |
| 195 | static inline void opa_vnic_set_pod_values(struct opa_vnic_adapter *adapter) |
| 196 | { |
| 197 | adapter->info.vport.max_mac_tbl_ent = OPA_VNIC_MAC_TBL_MAX_ENTRIES; |
| 198 | adapter->info.vport.max_smac_ent = OPA_VNIC_MAX_SMAC_LIMIT; |
| 199 | adapter->info.vport.config_state = OPA_VNIC_STATE_DROP_ALL; |
| 200 | adapter->info.vport.eth_link_status = OPA_VNIC_ETH_LINK_DOWN; |
Niranjana Vishwanathapura | 7f291d2 | 2017-09-26 06:43:54 -0700 | [diff] [blame] | 201 | adapter->info.vesw.eth_mtu = ETH_DATA_LEN; |
Vishwanathapura, Niranjana | cfd34f8 | 2017-04-12 20:29:26 -0700 | [diff] [blame] | 202 | } |
| 203 | |
Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 204 | /* opa_vnic_set_mac_addr - change mac address */ |
| 205 | static int opa_vnic_set_mac_addr(struct net_device *netdev, void *addr) |
| 206 | { |
| 207 | struct opa_vnic_adapter *adapter = opa_vnic_priv(netdev); |
| 208 | struct sockaddr *sa = addr; |
| 209 | int rc; |
| 210 | |
| 211 | if (!memcmp(netdev->dev_addr, sa->sa_data, ETH_ALEN)) |
| 212 | return 0; |
| 213 | |
| 214 | mutex_lock(&adapter->lock); |
| 215 | rc = eth_mac_addr(netdev, addr); |
| 216 | mutex_unlock(&adapter->lock); |
Vishwanathapura, Niranjana | cfd34f8 | 2017-04-12 20:29:26 -0700 | [diff] [blame] | 217 | if (rc) |
| 218 | return rc; |
Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 219 | |
Vishwanathapura, Niranjana | cfd34f8 | 2017-04-12 20:29:26 -0700 | [diff] [blame] | 220 | adapter->info.vport.uc_macs_gen_count++; |
| 221 | opa_vnic_vema_report_event(adapter, |
| 222 | OPA_VESWPORT_TRAP_IFACE_UCAST_MAC_CHANGE); |
| 223 | return 0; |
| 224 | } |
| 225 | |
| 226 | /* |
| 227 | * opa_vnic_mac_send_event - post event on possible mac list exchange |
| 228 | * Send trap when digest from uc/mc mac list differs from previous run. |
| 229 | * Digest is evaluated similar to how cksum does. |
| 230 | */ |
| 231 | static void opa_vnic_mac_send_event(struct net_device *netdev, u8 event) |
| 232 | { |
| 233 | struct opa_vnic_adapter *adapter = opa_vnic_priv(netdev); |
| 234 | struct netdev_hw_addr *ha; |
| 235 | struct netdev_hw_addr_list *hw_list; |
| 236 | u32 *ref_crc; |
| 237 | u32 l, crc = 0; |
| 238 | |
| 239 | switch (event) { |
| 240 | case OPA_VESWPORT_TRAP_IFACE_UCAST_MAC_CHANGE: |
| 241 | hw_list = &netdev->uc; |
| 242 | adapter->info.vport.uc_macs_gen_count++; |
| 243 | ref_crc = &adapter->umac_hash; |
| 244 | break; |
| 245 | case OPA_VESWPORT_TRAP_IFACE_MCAST_MAC_CHANGE: |
| 246 | hw_list = &netdev->mc; |
| 247 | adapter->info.vport.mc_macs_gen_count++; |
| 248 | ref_crc = &adapter->mmac_hash; |
| 249 | break; |
| 250 | default: |
| 251 | return; |
| 252 | } |
| 253 | netdev_hw_addr_list_for_each(ha, hw_list) { |
| 254 | crc = crc32_le(crc, ha->addr, ETH_ALEN); |
| 255 | } |
| 256 | l = netdev_hw_addr_list_count(hw_list) * ETH_ALEN; |
| 257 | crc = ~crc32_le(crc, (void *)&l, sizeof(l)); |
| 258 | |
| 259 | if (crc != *ref_crc) { |
| 260 | *ref_crc = crc; |
| 261 | opa_vnic_vema_report_event(adapter, event); |
| 262 | } |
| 263 | } |
| 264 | |
| 265 | /* opa_vnic_set_rx_mode - handle uc/mc mac list change */ |
| 266 | static void opa_vnic_set_rx_mode(struct net_device *netdev) |
| 267 | { |
| 268 | opa_vnic_mac_send_event(netdev, |
| 269 | OPA_VESWPORT_TRAP_IFACE_UCAST_MAC_CHANGE); |
| 270 | |
| 271 | opa_vnic_mac_send_event(netdev, |
| 272 | OPA_VESWPORT_TRAP_IFACE_MCAST_MAC_CHANGE); |
Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 273 | } |
| 274 | |
| 275 | /* opa_netdev_open - activate network interface */ |
| 276 | static int opa_netdev_open(struct net_device *netdev) |
| 277 | { |
| 278 | struct opa_vnic_adapter *adapter = opa_vnic_priv(netdev); |
| 279 | int rc; |
| 280 | |
| 281 | rc = adapter->rn_ops->ndo_open(adapter->netdev); |
| 282 | if (rc) { |
| 283 | v_dbg("open failed %d\n", rc); |
| 284 | return rc; |
| 285 | } |
| 286 | |
Niranjana Vishwanathapura | e82b7c3 | 2017-09-26 06:44:20 -0700 | [diff] [blame] | 287 | /* Update status and send trap */ |
| 288 | opa_vnic_update_state(adapter, true); |
Vishwanathapura, Niranjana | cfd34f8 | 2017-04-12 20:29:26 -0700 | [diff] [blame] | 289 | opa_vnic_vema_report_event(adapter, |
| 290 | OPA_VESWPORT_TRAP_ETH_LINK_STATUS_CHANGE); |
Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 291 | return 0; |
| 292 | } |
| 293 | |
| 294 | /* opa_netdev_close - disable network interface */ |
| 295 | static int opa_netdev_close(struct net_device *netdev) |
| 296 | { |
| 297 | struct opa_vnic_adapter *adapter = opa_vnic_priv(netdev); |
| 298 | int rc; |
| 299 | |
| 300 | rc = adapter->rn_ops->ndo_stop(adapter->netdev); |
| 301 | if (rc) { |
| 302 | v_dbg("close failed %d\n", rc); |
| 303 | return rc; |
| 304 | } |
| 305 | |
Niranjana Vishwanathapura | e82b7c3 | 2017-09-26 06:44:20 -0700 | [diff] [blame] | 306 | /* Update status and send trap */ |
| 307 | opa_vnic_update_state(adapter, false); |
Vishwanathapura, Niranjana | cfd34f8 | 2017-04-12 20:29:26 -0700 | [diff] [blame] | 308 | opa_vnic_vema_report_event(adapter, |
| 309 | OPA_VESWPORT_TRAP_ETH_LINK_STATUS_CHANGE); |
Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 310 | return 0; |
| 311 | } |
| 312 | |
| 313 | /* netdev ops */ |
| 314 | static const struct net_device_ops opa_netdev_ops = { |
| 315 | .ndo_open = opa_netdev_open, |
| 316 | .ndo_stop = opa_netdev_close, |
| 317 | .ndo_start_xmit = opa_netdev_start_xmit, |
Vishwanathapura, Niranjana | 009b7dd | 2017-04-12 20:29:24 -0700 | [diff] [blame] | 318 | .ndo_get_stats64 = opa_vnic_get_stats64, |
Vishwanathapura, Niranjana | cfd34f8 | 2017-04-12 20:29:26 -0700 | [diff] [blame] | 319 | .ndo_set_rx_mode = opa_vnic_set_rx_mode, |
Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 320 | .ndo_select_queue = opa_vnic_select_queue, |
| 321 | .ndo_set_mac_address = opa_vnic_set_mac_addr, |
| 322 | }; |
| 323 | |
| 324 | /* opa_vnic_add_netdev - create vnic netdev interface */ |
| 325 | struct opa_vnic_adapter *opa_vnic_add_netdev(struct ib_device *ibdev, |
| 326 | u8 port_num, u8 vport_num) |
| 327 | { |
| 328 | struct opa_vnic_adapter *adapter; |
| 329 | struct net_device *netdev; |
| 330 | struct rdma_netdev *rn; |
| 331 | int rc; |
| 332 | |
| 333 | netdev = ibdev->alloc_rdma_netdev(ibdev, port_num, |
| 334 | RDMA_NETDEV_OPA_VNIC, |
| 335 | "veth%d", NET_NAME_UNKNOWN, |
| 336 | ether_setup); |
| 337 | if (!netdev) |
| 338 | return ERR_PTR(-ENOMEM); |
| 339 | else if (IS_ERR(netdev)) |
| 340 | return ERR_CAST(netdev); |
| 341 | |
Niranjana Vishwanathapura | 8e95960 | 2017-06-30 13:14:46 -0700 | [diff] [blame] | 342 | rn = netdev_priv(netdev); |
Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 343 | adapter = kzalloc(sizeof(*adapter), GFP_KERNEL); |
| 344 | if (!adapter) { |
| 345 | rc = -ENOMEM; |
| 346 | goto adapter_err; |
| 347 | } |
| 348 | |
Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 349 | rn->clnt_priv = adapter; |
| 350 | rn->hca = ibdev; |
| 351 | rn->port_num = port_num; |
| 352 | adapter->netdev = netdev; |
| 353 | adapter->ibdev = ibdev; |
| 354 | adapter->port_num = port_num; |
| 355 | adapter->vport_num = vport_num; |
| 356 | adapter->rn_ops = netdev->netdev_ops; |
| 357 | |
| 358 | netdev->netdev_ops = &opa_netdev_ops; |
| 359 | netdev->priv_flags |= IFF_LIVE_ADDR_CHANGE; |
| 360 | netdev->hard_header_len += OPA_VNIC_SKB_HEADROOM; |
| 361 | mutex_init(&adapter->lock); |
Vishwanathapura, Niranjana | 174e03d | 2017-04-12 20:29:25 -0700 | [diff] [blame] | 362 | mutex_init(&adapter->mactbl_lock); |
Vishwanathapura, Niranjana | a379d69 | 2017-06-14 12:34:42 -0700 | [diff] [blame] | 363 | spin_lock_init(&adapter->stats_lock); |
Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 364 | |
| 365 | SET_NETDEV_DEV(netdev, ibdev->dev.parent); |
| 366 | |
| 367 | opa_vnic_set_ethtool_ops(netdev); |
Vishwanathapura, Niranjana | cfd34f8 | 2017-04-12 20:29:26 -0700 | [diff] [blame] | 368 | |
| 369 | opa_vnic_set_pod_values(adapter); |
| 370 | |
Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 371 | rc = register_netdev(netdev); |
| 372 | if (rc) |
| 373 | goto netdev_err; |
| 374 | |
| 375 | netif_carrier_off(netdev); |
| 376 | netif_dormant_on(netdev); |
| 377 | v_info("initialized\n"); |
| 378 | |
| 379 | return adapter; |
| 380 | netdev_err: |
| 381 | mutex_destroy(&adapter->lock); |
Vishwanathapura, Niranjana | 174e03d | 2017-04-12 20:29:25 -0700 | [diff] [blame] | 382 | mutex_destroy(&adapter->mactbl_lock); |
Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 383 | kfree(adapter); |
| 384 | adapter_err: |
Niranjana Vishwanathapura | 8e95960 | 2017-06-30 13:14:46 -0700 | [diff] [blame] | 385 | rn->free_rdma_netdev(netdev); |
Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 386 | |
| 387 | return ERR_PTR(rc); |
| 388 | } |
| 389 | |
| 390 | /* opa_vnic_rem_netdev - remove vnic netdev interface */ |
| 391 | void opa_vnic_rem_netdev(struct opa_vnic_adapter *adapter) |
| 392 | { |
| 393 | struct net_device *netdev = adapter->netdev; |
Niranjana Vishwanathapura | 8e95960 | 2017-06-30 13:14:46 -0700 | [diff] [blame] | 394 | struct rdma_netdev *rn = netdev_priv(netdev); |
Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 395 | |
| 396 | v_info("removing\n"); |
| 397 | unregister_netdev(netdev); |
Vishwanathapura, Niranjana | 174e03d | 2017-04-12 20:29:25 -0700 | [diff] [blame] | 398 | opa_vnic_release_mac_tbl(adapter); |
Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 399 | mutex_destroy(&adapter->lock); |
Vishwanathapura, Niranjana | 174e03d | 2017-04-12 20:29:25 -0700 | [diff] [blame] | 400 | mutex_destroy(&adapter->mactbl_lock); |
Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 401 | kfree(adapter); |
Niranjana Vishwanathapura | 8e95960 | 2017-06-30 13:14:46 -0700 | [diff] [blame] | 402 | rn->free_rdma_netdev(netdev); |
Vishwanathapura, Niranjana | 7d6f728 | 2017-04-12 20:29:22 -0700 | [diff] [blame] | 403 | } |