Thomas Gleixner | d2912cb | 2019-06-04 10:11:33 +0200 | [diff] [blame^] | 1 | // SPDX-License-Identifier: GPL-2.0-only |
Shradha Shah | 834e23d | 2015-05-06 00:55:58 +0100 | [diff] [blame] | 2 | /**************************************************************************** |
| 3 | * Driver for Solarflare network controllers and boards |
| 4 | * Copyright 2015 Solarflare Communications Inc. |
Shradha Shah | 834e23d | 2015-05-06 00:55:58 +0100 | [diff] [blame] | 5 | */ |
Shyam Saini | 4b5b1ac | 2017-01-16 09:26:21 +0530 | [diff] [blame] | 6 | #include <linux/etherdevice.h> |
Shradha Shah | 834e23d | 2015-05-06 00:55:58 +0100 | [diff] [blame] | 7 | #include <linux/pci.h> |
| 8 | #include <linux/module.h> |
| 9 | #include "net_driver.h" |
| 10 | #include "ef10_sriov.h" |
| 11 | #include "efx.h" |
| 12 | #include "nic.h" |
| 13 | #include "mcdi_pcol.h" |
| 14 | |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 15 | static int efx_ef10_evb_port_assign(struct efx_nic *efx, unsigned int port_id, |
| 16 | unsigned int vf_fn) |
Shradha Shah | 834e23d | 2015-05-06 00:55:58 +0100 | [diff] [blame] | 17 | { |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 18 | MCDI_DECLARE_BUF(inbuf, MC_CMD_EVB_PORT_ASSIGN_IN_LEN); |
| 19 | struct efx_ef10_nic_data *nic_data = efx->nic_data; |
Shradha Shah | 834e23d | 2015-05-06 00:55:58 +0100 | [diff] [blame] | 20 | |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 21 | MCDI_SET_DWORD(inbuf, EVB_PORT_ASSIGN_IN_PORT_ID, port_id); |
| 22 | MCDI_POPULATE_DWORD_2(inbuf, EVB_PORT_ASSIGN_IN_FUNCTION, |
| 23 | EVB_PORT_ASSIGN_IN_PF, nic_data->pf_index, |
| 24 | EVB_PORT_ASSIGN_IN_VF, vf_fn); |
| 25 | |
| 26 | return efx_mcdi_rpc(efx, MC_CMD_EVB_PORT_ASSIGN, inbuf, sizeof(inbuf), |
| 27 | NULL, 0, NULL); |
Shradha Shah | 834e23d | 2015-05-06 00:55:58 +0100 | [diff] [blame] | 28 | } |
| 29 | |
Daniel Pieczko | 6d8aaaf | 2015-05-06 00:57:34 +0100 | [diff] [blame] | 30 | static int efx_ef10_vswitch_alloc(struct efx_nic *efx, unsigned int port_id, |
| 31 | unsigned int vswitch_type) |
| 32 | { |
| 33 | MCDI_DECLARE_BUF(inbuf, MC_CMD_VSWITCH_ALLOC_IN_LEN); |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 34 | int rc; |
Daniel Pieczko | 6d8aaaf | 2015-05-06 00:57:34 +0100 | [diff] [blame] | 35 | |
| 36 | MCDI_SET_DWORD(inbuf, VSWITCH_ALLOC_IN_UPSTREAM_PORT_ID, port_id); |
| 37 | MCDI_SET_DWORD(inbuf, VSWITCH_ALLOC_IN_TYPE, vswitch_type); |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 38 | MCDI_SET_DWORD(inbuf, VSWITCH_ALLOC_IN_NUM_VLAN_TAGS, 2); |
Daniel Pieczko | 6d8aaaf | 2015-05-06 00:57:34 +0100 | [diff] [blame] | 39 | MCDI_POPULATE_DWORD_1(inbuf, VSWITCH_ALLOC_IN_FLAGS, |
| 40 | VSWITCH_ALLOC_IN_FLAG_AUTO_PORT, 0); |
| 41 | |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 42 | /* Quietly try to allocate 2 VLAN tags */ |
| 43 | rc = efx_mcdi_rpc_quiet(efx, MC_CMD_VSWITCH_ALLOC, inbuf, sizeof(inbuf), |
| 44 | NULL, 0, NULL); |
| 45 | |
| 46 | /* If 2 VLAN tags is too many, revert to trying with 1 VLAN tags */ |
| 47 | if (rc == -EPROTO) { |
| 48 | MCDI_SET_DWORD(inbuf, VSWITCH_ALLOC_IN_NUM_VLAN_TAGS, 1); |
| 49 | rc = efx_mcdi_rpc(efx, MC_CMD_VSWITCH_ALLOC, inbuf, |
| 50 | sizeof(inbuf), NULL, 0, NULL); |
| 51 | } else if (rc) { |
| 52 | efx_mcdi_display_error(efx, MC_CMD_VSWITCH_ALLOC, |
| 53 | MC_CMD_VSWITCH_ALLOC_IN_LEN, |
| 54 | NULL, 0, rc); |
| 55 | } |
| 56 | return rc; |
Daniel Pieczko | 6d8aaaf | 2015-05-06 00:57:34 +0100 | [diff] [blame] | 57 | } |
| 58 | |
| 59 | static int efx_ef10_vswitch_free(struct efx_nic *efx, unsigned int port_id) |
| 60 | { |
| 61 | MCDI_DECLARE_BUF(inbuf, MC_CMD_VSWITCH_FREE_IN_LEN); |
| 62 | |
| 63 | MCDI_SET_DWORD(inbuf, VSWITCH_FREE_IN_UPSTREAM_PORT_ID, port_id); |
| 64 | |
| 65 | return efx_mcdi_rpc(efx, MC_CMD_VSWITCH_FREE, inbuf, sizeof(inbuf), |
| 66 | NULL, 0, NULL); |
| 67 | } |
| 68 | |
| 69 | static int efx_ef10_vport_alloc(struct efx_nic *efx, |
| 70 | unsigned int port_id_in, |
| 71 | unsigned int vport_type, |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 72 | u16 vlan, |
Daniel Pieczko | 6d8aaaf | 2015-05-06 00:57:34 +0100 | [diff] [blame] | 73 | unsigned int *port_id_out) |
| 74 | { |
| 75 | MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_ALLOC_IN_LEN); |
| 76 | MCDI_DECLARE_BUF(outbuf, MC_CMD_VPORT_ALLOC_OUT_LEN); |
| 77 | size_t outlen; |
| 78 | int rc; |
| 79 | |
| 80 | EFX_WARN_ON_PARANOID(!port_id_out); |
| 81 | |
| 82 | MCDI_SET_DWORD(inbuf, VPORT_ALLOC_IN_UPSTREAM_PORT_ID, port_id_in); |
| 83 | MCDI_SET_DWORD(inbuf, VPORT_ALLOC_IN_TYPE, vport_type); |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 84 | MCDI_SET_DWORD(inbuf, VPORT_ALLOC_IN_NUM_VLAN_TAGS, |
| 85 | (vlan != EFX_EF10_NO_VLAN)); |
Daniel Pieczko | 6d8aaaf | 2015-05-06 00:57:34 +0100 | [diff] [blame] | 86 | MCDI_POPULATE_DWORD_1(inbuf, VPORT_ALLOC_IN_FLAGS, |
| 87 | VPORT_ALLOC_IN_FLAG_AUTO_PORT, 0); |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 88 | if (vlan != EFX_EF10_NO_VLAN) |
| 89 | MCDI_POPULATE_DWORD_1(inbuf, VPORT_ALLOC_IN_VLAN_TAGS, |
| 90 | VPORT_ALLOC_IN_VLAN_TAG_0, vlan); |
Daniel Pieczko | 6d8aaaf | 2015-05-06 00:57:34 +0100 | [diff] [blame] | 91 | |
| 92 | rc = efx_mcdi_rpc(efx, MC_CMD_VPORT_ALLOC, inbuf, sizeof(inbuf), |
| 93 | outbuf, sizeof(outbuf), &outlen); |
| 94 | if (rc) |
| 95 | return rc; |
| 96 | if (outlen < MC_CMD_VPORT_ALLOC_OUT_LEN) |
| 97 | return -EIO; |
| 98 | |
| 99 | *port_id_out = MCDI_DWORD(outbuf, VPORT_ALLOC_OUT_VPORT_ID); |
| 100 | return 0; |
| 101 | } |
| 102 | |
| 103 | static int efx_ef10_vport_free(struct efx_nic *efx, unsigned int port_id) |
| 104 | { |
| 105 | MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_FREE_IN_LEN); |
| 106 | |
| 107 | MCDI_SET_DWORD(inbuf, VPORT_FREE_IN_VPORT_ID, port_id); |
| 108 | |
| 109 | return efx_mcdi_rpc(efx, MC_CMD_VPORT_FREE, inbuf, sizeof(inbuf), |
| 110 | NULL, 0, NULL); |
| 111 | } |
| 112 | |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 113 | static void efx_ef10_sriov_free_vf_vports(struct efx_nic *efx) |
| 114 | { |
| 115 | struct efx_ef10_nic_data *nic_data = efx->nic_data; |
| 116 | int i; |
| 117 | |
| 118 | if (!nic_data->vf) |
| 119 | return; |
| 120 | |
| 121 | for (i = 0; i < efx->vf_count; i++) { |
| 122 | struct ef10_vf *vf = nic_data->vf + i; |
| 123 | |
Daniel Pieczko | 6598dad | 2015-06-02 11:41:00 +0100 | [diff] [blame] | 124 | /* If VF is assigned, do not free the vport */ |
| 125 | if (vf->pci_dev && |
| 126 | vf->pci_dev->dev_flags & PCI_DEV_FLAGS_ASSIGNED) |
| 127 | continue; |
| 128 | |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 129 | if (vf->vport_assigned) { |
| 130 | efx_ef10_evb_port_assign(efx, EVB_PORT_ID_NULL, i); |
| 131 | vf->vport_assigned = 0; |
| 132 | } |
| 133 | |
| 134 | if (!is_zero_ether_addr(vf->mac)) { |
| 135 | efx_ef10_vport_del_mac(efx, vf->vport_id, vf->mac); |
| 136 | eth_zero_addr(vf->mac); |
| 137 | } |
| 138 | |
| 139 | if (vf->vport_id) { |
| 140 | efx_ef10_vport_free(efx, vf->vport_id); |
| 141 | vf->vport_id = 0; |
| 142 | } |
Shradha Shah | f1122a3 | 2015-05-20 11:09:46 +0100 | [diff] [blame] | 143 | |
| 144 | vf->efx = NULL; |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 145 | } |
| 146 | } |
| 147 | |
| 148 | static void efx_ef10_sriov_free_vf_vswitching(struct efx_nic *efx) |
| 149 | { |
| 150 | struct efx_ef10_nic_data *nic_data = efx->nic_data; |
| 151 | |
| 152 | efx_ef10_sriov_free_vf_vports(efx); |
| 153 | kfree(nic_data->vf); |
| 154 | nic_data->vf = NULL; |
| 155 | } |
| 156 | |
| 157 | static int efx_ef10_sriov_assign_vf_vport(struct efx_nic *efx, |
| 158 | unsigned int vf_i) |
| 159 | { |
| 160 | struct efx_ef10_nic_data *nic_data = efx->nic_data; |
| 161 | struct ef10_vf *vf = nic_data->vf + vf_i; |
| 162 | int rc; |
| 163 | |
| 164 | if (WARN_ON_ONCE(!nic_data->vf)) |
| 165 | return -EOPNOTSUPP; |
| 166 | |
| 167 | rc = efx_ef10_vport_alloc(efx, EVB_PORT_ID_ASSIGNED, |
| 168 | MC_CMD_VPORT_ALLOC_IN_VPORT_TYPE_NORMAL, |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 169 | vf->vlan, &vf->vport_id); |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 170 | if (rc) |
| 171 | return rc; |
| 172 | |
| 173 | rc = efx_ef10_vport_add_mac(efx, vf->vport_id, vf->mac); |
| 174 | if (rc) { |
| 175 | eth_zero_addr(vf->mac); |
| 176 | return rc; |
| 177 | } |
| 178 | |
| 179 | rc = efx_ef10_evb_port_assign(efx, vf->vport_id, vf_i); |
| 180 | if (rc) |
| 181 | return rc; |
| 182 | |
| 183 | vf->vport_assigned = 1; |
| 184 | return 0; |
| 185 | } |
| 186 | |
| 187 | static int efx_ef10_sriov_alloc_vf_vswitching(struct efx_nic *efx) |
| 188 | { |
| 189 | struct efx_ef10_nic_data *nic_data = efx->nic_data; |
| 190 | unsigned int i; |
| 191 | int rc; |
| 192 | |
| 193 | nic_data->vf = kcalloc(efx->vf_count, sizeof(struct ef10_vf), |
| 194 | GFP_KERNEL); |
| 195 | if (!nic_data->vf) |
| 196 | return -ENOMEM; |
| 197 | |
| 198 | for (i = 0; i < efx->vf_count; i++) { |
Joe Perches | 6c1f0a1 | 2018-06-22 10:51:00 -0700 | [diff] [blame] | 199 | eth_random_addr(nic_data->vf[i].mac); |
Shradha Shah | f1122a3 | 2015-05-20 11:09:46 +0100 | [diff] [blame] | 200 | nic_data->vf[i].efx = NULL; |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 201 | nic_data->vf[i].vlan = EFX_EF10_NO_VLAN; |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 202 | |
| 203 | rc = efx_ef10_sriov_assign_vf_vport(efx, i); |
| 204 | if (rc) |
| 205 | goto fail; |
| 206 | } |
| 207 | |
| 208 | return 0; |
| 209 | fail: |
| 210 | efx_ef10_sriov_free_vf_vports(efx); |
| 211 | kfree(nic_data->vf); |
| 212 | nic_data->vf = NULL; |
| 213 | return rc; |
| 214 | } |
| 215 | |
| 216 | static int efx_ef10_sriov_restore_vf_vswitching(struct efx_nic *efx) |
| 217 | { |
| 218 | unsigned int i; |
| 219 | int rc; |
| 220 | |
| 221 | for (i = 0; i < efx->vf_count; i++) { |
| 222 | rc = efx_ef10_sriov_assign_vf_vport(efx, i); |
| 223 | if (rc) |
| 224 | goto fail; |
| 225 | } |
| 226 | |
| 227 | return 0; |
| 228 | fail: |
| 229 | efx_ef10_sriov_free_vf_vswitching(efx); |
| 230 | return rc; |
| 231 | } |
| 232 | |
Andrew Rybchenko | 38d27f3 | 2016-06-15 17:52:08 +0100 | [diff] [blame] | 233 | static int efx_ef10_vadaptor_alloc_set_features(struct efx_nic *efx) |
| 234 | { |
| 235 | struct efx_ef10_nic_data *nic_data = efx->nic_data; |
| 236 | u32 port_flags; |
| 237 | int rc; |
| 238 | |
| 239 | rc = efx_ef10_vadaptor_alloc(efx, nic_data->vport_id); |
| 240 | if (rc) |
| 241 | goto fail_vadaptor_alloc; |
| 242 | |
| 243 | rc = efx_ef10_vadaptor_query(efx, nic_data->vport_id, |
| 244 | &port_flags, NULL, NULL); |
| 245 | if (rc) |
| 246 | goto fail_vadaptor_query; |
| 247 | |
| 248 | if (port_flags & |
| 249 | (1 << MC_CMD_VPORT_ALLOC_IN_FLAG_VLAN_RESTRICT_LBN)) |
| 250 | efx->fixed_features |= NETIF_F_HW_VLAN_CTAG_FILTER; |
| 251 | else |
| 252 | efx->fixed_features &= ~NETIF_F_HW_VLAN_CTAG_FILTER; |
| 253 | |
| 254 | return 0; |
| 255 | |
| 256 | fail_vadaptor_query: |
| 257 | efx_ef10_vadaptor_free(efx, EVB_PORT_ID_ASSIGNED); |
| 258 | fail_vadaptor_alloc: |
| 259 | return rc; |
| 260 | } |
| 261 | |
Daniel Pieczko | 6d8aaaf | 2015-05-06 00:57:34 +0100 | [diff] [blame] | 262 | /* On top of the default firmware vswitch setup, create a VEB vswitch and |
| 263 | * expansion vport for use by this function. |
| 264 | */ |
Shradha Shah | 7b8c7b5 | 2015-05-06 00:58:54 +0100 | [diff] [blame] | 265 | int efx_ef10_vswitching_probe_pf(struct efx_nic *efx) |
Daniel Pieczko | 6d8aaaf | 2015-05-06 00:57:34 +0100 | [diff] [blame] | 266 | { |
| 267 | struct efx_ef10_nic_data *nic_data = efx->nic_data; |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 268 | struct net_device *net_dev = efx->net_dev; |
Daniel Pieczko | 6d8aaaf | 2015-05-06 00:57:34 +0100 | [diff] [blame] | 269 | int rc; |
| 270 | |
Shradha Shah | 7b8c7b5 | 2015-05-06 00:58:54 +0100 | [diff] [blame] | 271 | if (pci_sriov_get_totalvfs(efx->pci_dev) <= 0) { |
| 272 | /* vswitch not needed as we have no VFs */ |
Andrew Rybchenko | 38d27f3 | 2016-06-15 17:52:08 +0100 | [diff] [blame] | 273 | efx_ef10_vadaptor_alloc_set_features(efx); |
Shradha Shah | 7b8c7b5 | 2015-05-06 00:58:54 +0100 | [diff] [blame] | 274 | return 0; |
| 275 | } |
Daniel Pieczko | 6d8aaaf | 2015-05-06 00:57:34 +0100 | [diff] [blame] | 276 | |
| 277 | rc = efx_ef10_vswitch_alloc(efx, EVB_PORT_ID_ASSIGNED, |
| 278 | MC_CMD_VSWITCH_ALLOC_IN_VSWITCH_TYPE_VEB); |
| 279 | if (rc) |
| 280 | goto fail1; |
| 281 | |
| 282 | rc = efx_ef10_vport_alloc(efx, EVB_PORT_ID_ASSIGNED, |
| 283 | MC_CMD_VPORT_ALLOC_IN_VPORT_TYPE_NORMAL, |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 284 | EFX_EF10_NO_VLAN, &nic_data->vport_id); |
Daniel Pieczko | 6d8aaaf | 2015-05-06 00:57:34 +0100 | [diff] [blame] | 285 | if (rc) |
| 286 | goto fail2; |
| 287 | |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 288 | rc = efx_ef10_vport_add_mac(efx, nic_data->vport_id, net_dev->dev_addr); |
| 289 | if (rc) |
| 290 | goto fail3; |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 291 | ether_addr_copy(nic_data->vport_mac, net_dev->dev_addr); |
| 292 | |
Andrew Rybchenko | 38d27f3 | 2016-06-15 17:52:08 +0100 | [diff] [blame] | 293 | rc = efx_ef10_vadaptor_alloc_set_features(efx); |
Shradha Shah | 7b8c7b5 | 2015-05-06 00:58:54 +0100 | [diff] [blame] | 294 | if (rc) |
| 295 | goto fail4; |
| 296 | |
Daniel Pieczko | 6d8aaaf | 2015-05-06 00:57:34 +0100 | [diff] [blame] | 297 | return 0; |
Shradha Shah | 7b8c7b5 | 2015-05-06 00:58:54 +0100 | [diff] [blame] | 298 | fail4: |
| 299 | efx_ef10_vport_del_mac(efx, nic_data->vport_id, nic_data->vport_mac); |
| 300 | eth_zero_addr(nic_data->vport_mac); |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 301 | fail3: |
| 302 | efx_ef10_vport_free(efx, nic_data->vport_id); |
| 303 | nic_data->vport_id = EVB_PORT_ID_ASSIGNED; |
Daniel Pieczko | 6d8aaaf | 2015-05-06 00:57:34 +0100 | [diff] [blame] | 304 | fail2: |
| 305 | efx_ef10_vswitch_free(efx, EVB_PORT_ID_ASSIGNED); |
| 306 | fail1: |
| 307 | return rc; |
| 308 | } |
| 309 | |
Shradha Shah | 7b8c7b5 | 2015-05-06 00:58:54 +0100 | [diff] [blame] | 310 | int efx_ef10_vswitching_probe_vf(struct efx_nic *efx) |
| 311 | { |
Andrew Rybchenko | 38d27f3 | 2016-06-15 17:52:08 +0100 | [diff] [blame] | 312 | return efx_ef10_vadaptor_alloc_set_features(efx); |
Shradha Shah | 7b8c7b5 | 2015-05-06 00:58:54 +0100 | [diff] [blame] | 313 | } |
| 314 | |
| 315 | int efx_ef10_vswitching_restore_pf(struct efx_nic *efx) |
Daniel Pieczko | 6d8aaaf | 2015-05-06 00:57:34 +0100 | [diff] [blame] | 316 | { |
| 317 | struct efx_ef10_nic_data *nic_data = efx->nic_data; |
| 318 | int rc; |
| 319 | |
| 320 | if (!nic_data->must_probe_vswitching) |
| 321 | return 0; |
| 322 | |
Shradha Shah | 7b8c7b5 | 2015-05-06 00:58:54 +0100 | [diff] [blame] | 323 | rc = efx_ef10_vswitching_probe_pf(efx); |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 324 | if (rc) |
| 325 | goto fail; |
Daniel Pieczko | 6d8aaaf | 2015-05-06 00:57:34 +0100 | [diff] [blame] | 326 | |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 327 | rc = efx_ef10_sriov_restore_vf_vswitching(efx); |
| 328 | if (rc) |
| 329 | goto fail; |
| 330 | |
| 331 | nic_data->must_probe_vswitching = false; |
| 332 | fail: |
Daniel Pieczko | 6d8aaaf | 2015-05-06 00:57:34 +0100 | [diff] [blame] | 333 | return rc; |
| 334 | } |
| 335 | |
Shradha Shah | 7b8c7b5 | 2015-05-06 00:58:54 +0100 | [diff] [blame] | 336 | int efx_ef10_vswitching_restore_vf(struct efx_nic *efx) |
| 337 | { |
| 338 | struct efx_ef10_nic_data *nic_data = efx->nic_data; |
| 339 | int rc; |
| 340 | |
| 341 | if (!nic_data->must_probe_vswitching) |
| 342 | return 0; |
| 343 | |
| 344 | rc = efx_ef10_vadaptor_free(efx, EVB_PORT_ID_ASSIGNED); |
| 345 | if (rc) |
| 346 | return rc; |
| 347 | |
| 348 | nic_data->must_probe_vswitching = false; |
| 349 | return 0; |
| 350 | } |
| 351 | |
| 352 | void efx_ef10_vswitching_remove_pf(struct efx_nic *efx) |
Daniel Pieczko | 6d8aaaf | 2015-05-06 00:57:34 +0100 | [diff] [blame] | 353 | { |
| 354 | struct efx_ef10_nic_data *nic_data = efx->nic_data; |
| 355 | |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 356 | efx_ef10_sriov_free_vf_vswitching(efx); |
| 357 | |
Shradha Shah | 7b8c7b5 | 2015-05-06 00:58:54 +0100 | [diff] [blame] | 358 | efx_ef10_vadaptor_free(efx, nic_data->vport_id); |
| 359 | |
Daniel Pieczko | 6d8aaaf | 2015-05-06 00:57:34 +0100 | [diff] [blame] | 360 | if (nic_data->vport_id == EVB_PORT_ID_ASSIGNED) |
| 361 | return; /* No vswitch was ever created */ |
| 362 | |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 363 | if (!is_zero_ether_addr(nic_data->vport_mac)) { |
| 364 | efx_ef10_vport_del_mac(efx, nic_data->vport_id, |
| 365 | efx->net_dev->dev_addr); |
| 366 | eth_zero_addr(nic_data->vport_mac); |
| 367 | } |
Daniel Pieczko | 6d8aaaf | 2015-05-06 00:57:34 +0100 | [diff] [blame] | 368 | efx_ef10_vport_free(efx, nic_data->vport_id); |
| 369 | nic_data->vport_id = EVB_PORT_ID_ASSIGNED; |
| 370 | |
Daniel Pieczko | 6598dad | 2015-06-02 11:41:00 +0100 | [diff] [blame] | 371 | /* Only free the vswitch if no VFs are assigned */ |
| 372 | if (!pci_vfs_assigned(efx->pci_dev)) |
| 373 | efx_ef10_vswitch_free(efx, nic_data->vport_id); |
Daniel Pieczko | 6d8aaaf | 2015-05-06 00:57:34 +0100 | [diff] [blame] | 374 | } |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 375 | |
Shradha Shah | 7b8c7b5 | 2015-05-06 00:58:54 +0100 | [diff] [blame] | 376 | void efx_ef10_vswitching_remove_vf(struct efx_nic *efx) |
| 377 | { |
| 378 | efx_ef10_vadaptor_free(efx, EVB_PORT_ID_ASSIGNED); |
| 379 | } |
| 380 | |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 381 | static int efx_ef10_pci_sriov_enable(struct efx_nic *efx, int num_vfs) |
| 382 | { |
| 383 | int rc = 0; |
| 384 | struct pci_dev *dev = efx->pci_dev; |
| 385 | |
| 386 | efx->vf_count = num_vfs; |
| 387 | |
| 388 | rc = efx_ef10_sriov_alloc_vf_vswitching(efx); |
| 389 | if (rc) |
| 390 | goto fail1; |
| 391 | |
| 392 | rc = pci_enable_sriov(dev, num_vfs); |
| 393 | if (rc) |
| 394 | goto fail2; |
| 395 | |
| 396 | return 0; |
| 397 | fail2: |
| 398 | efx_ef10_sriov_free_vf_vswitching(efx); |
| 399 | fail1: |
| 400 | efx->vf_count = 0; |
| 401 | netif_err(efx, probe, efx->net_dev, |
| 402 | "Failed to enable SRIOV VFs\n"); |
| 403 | return rc; |
| 404 | } |
| 405 | |
Daniel Pieczko | 6598dad | 2015-06-02 11:41:00 +0100 | [diff] [blame] | 406 | static int efx_ef10_pci_sriov_disable(struct efx_nic *efx, bool force) |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 407 | { |
| 408 | struct pci_dev *dev = efx->pci_dev; |
Daniel Pieczko | 6598dad | 2015-06-02 11:41:00 +0100 | [diff] [blame] | 409 | unsigned int vfs_assigned = 0; |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 410 | |
Daniel Pieczko | 6598dad | 2015-06-02 11:41:00 +0100 | [diff] [blame] | 411 | vfs_assigned = pci_vfs_assigned(dev); |
Daniel Pieczko | 71158bf | 2015-06-02 11:40:31 +0100 | [diff] [blame] | 412 | |
Daniel Pieczko | 6598dad | 2015-06-02 11:41:00 +0100 | [diff] [blame] | 413 | if (vfs_assigned && !force) { |
| 414 | netif_info(efx, drv, efx->net_dev, "VFs are assigned to guests; " |
| 415 | "please detach them before disabling SR-IOV\n"); |
Daniel Pieczko | 71158bf | 2015-06-02 11:40:31 +0100 | [diff] [blame] | 416 | return -EBUSY; |
| 417 | } |
| 418 | |
Daniel Pieczko | 6598dad | 2015-06-02 11:41:00 +0100 | [diff] [blame] | 419 | if (!vfs_assigned) |
| 420 | pci_disable_sriov(dev); |
| 421 | |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 422 | efx_ef10_sriov_free_vf_vswitching(efx); |
| 423 | efx->vf_count = 0; |
| 424 | return 0; |
| 425 | } |
| 426 | |
| 427 | int efx_ef10_sriov_configure(struct efx_nic *efx, int num_vfs) |
| 428 | { |
| 429 | if (num_vfs == 0) |
Daniel Pieczko | 6598dad | 2015-06-02 11:41:00 +0100 | [diff] [blame] | 430 | return efx_ef10_pci_sriov_disable(efx, false); |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 431 | else |
| 432 | return efx_ef10_pci_sriov_enable(efx, num_vfs); |
| 433 | } |
| 434 | |
| 435 | int efx_ef10_sriov_init(struct efx_nic *efx) |
| 436 | { |
| 437 | return 0; |
| 438 | } |
| 439 | |
| 440 | void efx_ef10_sriov_fini(struct efx_nic *efx) |
| 441 | { |
| 442 | struct efx_ef10_nic_data *nic_data = efx->nic_data; |
Daniel Pieczko | 2a3fc31 | 2015-06-02 11:40:46 +0100 | [diff] [blame] | 443 | unsigned int i; |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 444 | int rc; |
| 445 | |
Daniel Pieczko | 6598dad | 2015-06-02 11:41:00 +0100 | [diff] [blame] | 446 | if (!nic_data->vf) { |
| 447 | /* Remove any un-assigned orphaned VFs */ |
| 448 | if (pci_num_vf(efx->pci_dev) && !pci_vfs_assigned(efx->pci_dev)) |
| 449 | pci_disable_sriov(efx->pci_dev); |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 450 | return; |
Daniel Pieczko | 6598dad | 2015-06-02 11:41:00 +0100 | [diff] [blame] | 451 | } |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 452 | |
Daniel Pieczko | 2a3fc31 | 2015-06-02 11:40:46 +0100 | [diff] [blame] | 453 | /* Remove any VFs in the host */ |
| 454 | for (i = 0; i < efx->vf_count; ++i) { |
| 455 | struct efx_nic *vf_efx = nic_data->vf[i].efx; |
| 456 | |
| 457 | if (vf_efx) |
| 458 | vf_efx->pci_dev->driver->remove(vf_efx->pci_dev); |
| 459 | } |
| 460 | |
Daniel Pieczko | 6598dad | 2015-06-02 11:41:00 +0100 | [diff] [blame] | 461 | rc = efx_ef10_pci_sriov_disable(efx, true); |
Shradha Shah | 3c5eb87 | 2015-05-06 00:58:31 +0100 | [diff] [blame] | 462 | if (rc) |
| 463 | netif_dbg(efx, drv, efx->net_dev, |
| 464 | "Disabling SRIOV was not successful rc=%d\n", rc); |
| 465 | else |
| 466 | netif_dbg(efx, drv, efx->net_dev, "SRIOV disabled\n"); |
| 467 | } |
Shradha Shah | e340be9 | 2015-05-20 11:11:03 +0100 | [diff] [blame] | 468 | |
| 469 | static int efx_ef10_vport_del_vf_mac(struct efx_nic *efx, unsigned int port_id, |
| 470 | u8 *mac) |
| 471 | { |
| 472 | MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_DEL_MAC_ADDRESS_IN_LEN); |
| 473 | MCDI_DECLARE_BUF_ERR(outbuf); |
| 474 | size_t outlen; |
| 475 | int rc; |
| 476 | |
| 477 | MCDI_SET_DWORD(inbuf, VPORT_DEL_MAC_ADDRESS_IN_VPORT_ID, port_id); |
| 478 | ether_addr_copy(MCDI_PTR(inbuf, VPORT_DEL_MAC_ADDRESS_IN_MACADDR), mac); |
| 479 | |
| 480 | rc = efx_mcdi_rpc(efx, MC_CMD_VPORT_DEL_MAC_ADDRESS, inbuf, |
| 481 | sizeof(inbuf), outbuf, sizeof(outbuf), &outlen); |
| 482 | |
| 483 | return rc; |
| 484 | } |
| 485 | |
| 486 | int efx_ef10_sriov_set_vf_mac(struct efx_nic *efx, int vf_i, u8 *mac) |
| 487 | { |
| 488 | struct efx_ef10_nic_data *nic_data = efx->nic_data; |
| 489 | struct ef10_vf *vf; |
| 490 | int rc; |
| 491 | |
| 492 | if (!nic_data->vf) |
| 493 | return -EOPNOTSUPP; |
| 494 | |
| 495 | if (vf_i >= efx->vf_count) |
| 496 | return -EINVAL; |
| 497 | vf = nic_data->vf + vf_i; |
| 498 | |
| 499 | if (vf->efx) { |
| 500 | efx_device_detach_sync(vf->efx); |
| 501 | efx_net_stop(vf->efx->net_dev); |
| 502 | |
| 503 | down_write(&vf->efx->filter_sem); |
| 504 | vf->efx->type->filter_table_remove(vf->efx); |
| 505 | |
| 506 | rc = efx_ef10_vadaptor_free(vf->efx, EVB_PORT_ID_ASSIGNED); |
| 507 | if (rc) { |
| 508 | up_write(&vf->efx->filter_sem); |
| 509 | return rc; |
| 510 | } |
| 511 | } |
| 512 | |
| 513 | rc = efx_ef10_evb_port_assign(efx, EVB_PORT_ID_NULL, vf_i); |
| 514 | if (rc) |
| 515 | return rc; |
| 516 | |
| 517 | if (!is_zero_ether_addr(vf->mac)) { |
| 518 | rc = efx_ef10_vport_del_vf_mac(efx, vf->vport_id, vf->mac); |
| 519 | if (rc) |
| 520 | return rc; |
| 521 | } |
| 522 | |
| 523 | if (!is_zero_ether_addr(mac)) { |
| 524 | rc = efx_ef10_vport_add_mac(efx, vf->vport_id, mac); |
| 525 | if (rc) { |
| 526 | eth_zero_addr(vf->mac); |
| 527 | goto fail; |
| 528 | } |
| 529 | if (vf->efx) |
| 530 | ether_addr_copy(vf->efx->net_dev->dev_addr, mac); |
| 531 | } |
| 532 | |
| 533 | ether_addr_copy(vf->mac, mac); |
| 534 | |
| 535 | rc = efx_ef10_evb_port_assign(efx, vf->vport_id, vf_i); |
| 536 | if (rc) |
| 537 | goto fail; |
| 538 | |
| 539 | if (vf->efx) { |
| 540 | /* VF cannot use the vport_id that the PF created */ |
| 541 | rc = efx_ef10_vadaptor_alloc(vf->efx, EVB_PORT_ID_ASSIGNED); |
| 542 | if (rc) { |
| 543 | up_write(&vf->efx->filter_sem); |
| 544 | return rc; |
| 545 | } |
| 546 | vf->efx->type->filter_table_probe(vf->efx); |
| 547 | up_write(&vf->efx->filter_sem); |
| 548 | efx_net_open(vf->efx->net_dev); |
Peter Dunning | 9c568fd | 2017-02-17 15:50:43 +0000 | [diff] [blame] | 549 | efx_device_attach_if_not_resetting(vf->efx); |
Shradha Shah | e340be9 | 2015-05-20 11:11:03 +0100 | [diff] [blame] | 550 | } |
| 551 | |
| 552 | return 0; |
| 553 | |
| 554 | fail: |
Shyam Saini | 4b5b1ac | 2017-01-16 09:26:21 +0530 | [diff] [blame] | 555 | eth_zero_addr(vf->mac); |
Shradha Shah | e340be9 | 2015-05-20 11:11:03 +0100 | [diff] [blame] | 556 | return rc; |
| 557 | } |
Shradha Shah | b9af904 | 2015-05-20 11:11:18 +0100 | [diff] [blame] | 558 | |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 559 | int efx_ef10_sriov_set_vf_vlan(struct efx_nic *efx, int vf_i, u16 vlan, |
| 560 | u8 qos) |
| 561 | { |
| 562 | struct efx_ef10_nic_data *nic_data = efx->nic_data; |
| 563 | struct ef10_vf *vf; |
Colin Ian King | 2e6dde5 | 2018-07-04 13:13:01 +0100 | [diff] [blame] | 564 | u16 new_vlan; |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 565 | int rc = 0, rc2 = 0; |
| 566 | |
| 567 | if (vf_i >= efx->vf_count) |
| 568 | return -EINVAL; |
| 569 | if (qos != 0) |
| 570 | return -EINVAL; |
| 571 | |
| 572 | vf = nic_data->vf + vf_i; |
| 573 | |
| 574 | new_vlan = (vlan == 0) ? EFX_EF10_NO_VLAN : vlan; |
| 575 | if (new_vlan == vf->vlan) |
| 576 | return 0; |
| 577 | |
| 578 | if (vf->efx) { |
| 579 | efx_device_detach_sync(vf->efx); |
| 580 | efx_net_stop(vf->efx->net_dev); |
| 581 | |
Martin Habets | d248953 | 2016-06-15 17:48:49 +0100 | [diff] [blame] | 582 | mutex_lock(&vf->efx->mac_lock); |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 583 | down_write(&vf->efx->filter_sem); |
| 584 | vf->efx->type->filter_table_remove(vf->efx); |
| 585 | |
| 586 | rc = efx_ef10_vadaptor_free(vf->efx, EVB_PORT_ID_ASSIGNED); |
| 587 | if (rc) |
| 588 | goto restore_filters; |
| 589 | } |
| 590 | |
| 591 | if (vf->vport_assigned) { |
| 592 | rc = efx_ef10_evb_port_assign(efx, EVB_PORT_ID_NULL, vf_i); |
| 593 | if (rc) { |
| 594 | netif_warn(efx, drv, efx->net_dev, |
| 595 | "Failed to change vlan on VF %d.\n", vf_i); |
| 596 | netif_warn(efx, drv, efx->net_dev, |
| 597 | "This is likely because the VF is bound to a driver in a VM.\n"); |
| 598 | netif_warn(efx, drv, efx->net_dev, |
| 599 | "Please unload the driver in the VM.\n"); |
| 600 | goto restore_vadaptor; |
| 601 | } |
| 602 | vf->vport_assigned = 0; |
| 603 | } |
| 604 | |
| 605 | if (!is_zero_ether_addr(vf->mac)) { |
| 606 | rc = efx_ef10_vport_del_mac(efx, vf->vport_id, vf->mac); |
| 607 | if (rc) |
| 608 | goto restore_evb_port; |
| 609 | } |
| 610 | |
| 611 | if (vf->vport_id) { |
| 612 | rc = efx_ef10_vport_free(efx, vf->vport_id); |
| 613 | if (rc) |
| 614 | goto restore_mac; |
| 615 | vf->vport_id = 0; |
| 616 | } |
| 617 | |
| 618 | /* Do the actual vlan change */ |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 619 | vf->vlan = new_vlan; |
| 620 | |
| 621 | /* Restore everything in reverse order */ |
| 622 | rc = efx_ef10_vport_alloc(efx, EVB_PORT_ID_ASSIGNED, |
| 623 | MC_CMD_VPORT_ALLOC_IN_VPORT_TYPE_NORMAL, |
| 624 | vf->vlan, &vf->vport_id); |
| 625 | if (rc) |
Shradha Shah | 671b53e | 2015-07-08 10:12:45 +0100 | [diff] [blame] | 626 | goto reset_nic_up_write; |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 627 | |
| 628 | restore_mac: |
| 629 | if (!is_zero_ether_addr(vf->mac)) { |
| 630 | rc2 = efx_ef10_vport_add_mac(efx, vf->vport_id, vf->mac); |
| 631 | if (rc2) { |
| 632 | eth_zero_addr(vf->mac); |
Shradha Shah | 671b53e | 2015-07-08 10:12:45 +0100 | [diff] [blame] | 633 | goto reset_nic_up_write; |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 634 | } |
| 635 | } |
| 636 | |
| 637 | restore_evb_port: |
| 638 | rc2 = efx_ef10_evb_port_assign(efx, vf->vport_id, vf_i); |
| 639 | if (rc2) |
Shradha Shah | 671b53e | 2015-07-08 10:12:45 +0100 | [diff] [blame] | 640 | goto reset_nic_up_write; |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 641 | else |
| 642 | vf->vport_assigned = 1; |
| 643 | |
| 644 | restore_vadaptor: |
| 645 | if (vf->efx) { |
| 646 | rc2 = efx_ef10_vadaptor_alloc(vf->efx, EVB_PORT_ID_ASSIGNED); |
| 647 | if (rc2) |
Shradha Shah | 671b53e | 2015-07-08 10:12:45 +0100 | [diff] [blame] | 648 | goto reset_nic_up_write; |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 649 | } |
| 650 | |
| 651 | restore_filters: |
| 652 | if (vf->efx) { |
| 653 | rc2 = vf->efx->type->filter_table_probe(vf->efx); |
| 654 | if (rc2) |
Shradha Shah | 671b53e | 2015-07-08 10:12:45 +0100 | [diff] [blame] | 655 | goto reset_nic_up_write; |
| 656 | |
| 657 | up_write(&vf->efx->filter_sem); |
Martin Habets | d248953 | 2016-06-15 17:48:49 +0100 | [diff] [blame] | 658 | mutex_unlock(&vf->efx->mac_lock); |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 659 | |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 660 | rc2 = efx_net_open(vf->efx->net_dev); |
| 661 | if (rc2) |
| 662 | goto reset_nic; |
| 663 | |
Peter Dunning | 9c568fd | 2017-02-17 15:50:43 +0000 | [diff] [blame] | 664 | efx_device_attach_if_not_resetting(vf->efx); |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 665 | } |
| 666 | return rc; |
| 667 | |
Shradha Shah | 671b53e | 2015-07-08 10:12:45 +0100 | [diff] [blame] | 668 | reset_nic_up_write: |
Martin Habets | d248953 | 2016-06-15 17:48:49 +0100 | [diff] [blame] | 669 | if (vf->efx) { |
Shradha Shah | 671b53e | 2015-07-08 10:12:45 +0100 | [diff] [blame] | 670 | up_write(&vf->efx->filter_sem); |
Martin Habets | d248953 | 2016-06-15 17:48:49 +0100 | [diff] [blame] | 671 | mutex_unlock(&vf->efx->mac_lock); |
| 672 | } |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 673 | reset_nic: |
| 674 | if (vf->efx) { |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 675 | netif_err(efx, drv, efx->net_dev, |
| 676 | "Failed to restore VF - scheduling reset.\n"); |
| 677 | efx_schedule_reset(vf->efx, RESET_TYPE_DATAPATH); |
| 678 | } else { |
| 679 | netif_err(efx, drv, efx->net_dev, |
| 680 | "Failed to restore the VF and cannot reset the VF " |
| 681 | "- VF is not functional.\n"); |
| 682 | netif_err(efx, drv, efx->net_dev, |
| 683 | "Please reload the driver attached to the VF.\n"); |
| 684 | } |
| 685 | |
| 686 | return rc ? rc : rc2; |
| 687 | } |
| 688 | |
Shradha Shah | 860d2ff | 2015-05-20 11:12:30 +0100 | [diff] [blame] | 689 | int efx_ef10_sriov_set_vf_spoofchk(struct efx_nic *efx, int vf_i, |
| 690 | bool spoofchk) |
| 691 | { |
| 692 | return spoofchk ? -EOPNOTSUPP : 0; |
| 693 | } |
| 694 | |
Edward Cree | 4392dc6 | 2015-05-20 11:12:13 +0100 | [diff] [blame] | 695 | int efx_ef10_sriov_set_vf_link_state(struct efx_nic *efx, int vf_i, |
| 696 | int link_state) |
| 697 | { |
| 698 | MCDI_DECLARE_BUF(inbuf, MC_CMD_LINK_STATE_MODE_IN_LEN); |
| 699 | struct efx_ef10_nic_data *nic_data = efx->nic_data; |
| 700 | |
| 701 | BUILD_BUG_ON(IFLA_VF_LINK_STATE_AUTO != |
| 702 | MC_CMD_LINK_STATE_MODE_IN_LINK_STATE_AUTO); |
| 703 | BUILD_BUG_ON(IFLA_VF_LINK_STATE_ENABLE != |
| 704 | MC_CMD_LINK_STATE_MODE_IN_LINK_STATE_UP); |
| 705 | BUILD_BUG_ON(IFLA_VF_LINK_STATE_DISABLE != |
| 706 | MC_CMD_LINK_STATE_MODE_IN_LINK_STATE_DOWN); |
| 707 | MCDI_POPULATE_DWORD_2(inbuf, LINK_STATE_MODE_IN_FUNCTION, |
| 708 | LINK_STATE_MODE_IN_FUNCTION_PF, |
| 709 | nic_data->pf_index, |
| 710 | LINK_STATE_MODE_IN_FUNCTION_VF, vf_i); |
| 711 | MCDI_SET_DWORD(inbuf, LINK_STATE_MODE_IN_NEW_MODE, link_state); |
| 712 | return efx_mcdi_rpc(efx, MC_CMD_LINK_STATE_MODE, inbuf, sizeof(inbuf), |
| 713 | NULL, 0, NULL); /* don't care what old mode was */ |
| 714 | } |
| 715 | |
Shradha Shah | b9af904 | 2015-05-20 11:11:18 +0100 | [diff] [blame] | 716 | int efx_ef10_sriov_get_vf_config(struct efx_nic *efx, int vf_i, |
| 717 | struct ifla_vf_info *ivf) |
| 718 | { |
Edward Cree | 4392dc6 | 2015-05-20 11:12:13 +0100 | [diff] [blame] | 719 | MCDI_DECLARE_BUF(inbuf, MC_CMD_LINK_STATE_MODE_IN_LEN); |
| 720 | MCDI_DECLARE_BUF(outbuf, MC_CMD_LINK_STATE_MODE_OUT_LEN); |
| 721 | |
Shradha Shah | b9af904 | 2015-05-20 11:11:18 +0100 | [diff] [blame] | 722 | struct efx_ef10_nic_data *nic_data = efx->nic_data; |
| 723 | struct ef10_vf *vf; |
Edward Cree | 4392dc6 | 2015-05-20 11:12:13 +0100 | [diff] [blame] | 724 | size_t outlen; |
| 725 | int rc; |
Shradha Shah | b9af904 | 2015-05-20 11:11:18 +0100 | [diff] [blame] | 726 | |
| 727 | if (vf_i >= efx->vf_count) |
| 728 | return -EINVAL; |
| 729 | |
| 730 | if (!nic_data->vf) |
| 731 | return -EOPNOTSUPP; |
| 732 | |
| 733 | vf = nic_data->vf + vf_i; |
| 734 | |
| 735 | ivf->vf = vf_i; |
| 736 | ivf->min_tx_rate = 0; |
| 737 | ivf->max_tx_rate = 0; |
| 738 | ether_addr_copy(ivf->mac, vf->mac); |
Shradha Shah | 2d432f2 | 2015-05-20 11:11:54 +0100 | [diff] [blame] | 739 | ivf->vlan = (vf->vlan == EFX_EF10_NO_VLAN) ? 0 : vf->vlan; |
Shradha Shah | b9af904 | 2015-05-20 11:11:18 +0100 | [diff] [blame] | 740 | ivf->qos = 0; |
| 741 | |
Edward Cree | 4392dc6 | 2015-05-20 11:12:13 +0100 | [diff] [blame] | 742 | MCDI_POPULATE_DWORD_2(inbuf, LINK_STATE_MODE_IN_FUNCTION, |
| 743 | LINK_STATE_MODE_IN_FUNCTION_PF, |
| 744 | nic_data->pf_index, |
| 745 | LINK_STATE_MODE_IN_FUNCTION_VF, vf_i); |
| 746 | MCDI_SET_DWORD(inbuf, LINK_STATE_MODE_IN_NEW_MODE, |
| 747 | MC_CMD_LINK_STATE_MODE_IN_DO_NOT_CHANGE); |
| 748 | rc = efx_mcdi_rpc(efx, MC_CMD_LINK_STATE_MODE, inbuf, sizeof(inbuf), |
| 749 | outbuf, sizeof(outbuf), &outlen); |
| 750 | if (rc) |
| 751 | return rc; |
| 752 | if (outlen < MC_CMD_LINK_STATE_MODE_OUT_LEN) |
| 753 | return -EIO; |
| 754 | ivf->linkstate = MCDI_DWORD(outbuf, LINK_STATE_MODE_OUT_OLD_MODE); |
| 755 | |
Shradha Shah | b9af904 | 2015-05-20 11:11:18 +0100 | [diff] [blame] | 756 | return 0; |
| 757 | } |