1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2016 Intel Corporation
3 */
4
5 #include <stdio.h>
6 #include <errno.h>
7 #include <stdint.h>
8 #include <stdlib.h>
9 #include <unistd.h>
10 #include <stdarg.h>
11 #include <inttypes.h>
12
13 #include <rte_interrupts.h>
14 #include <rte_log.h>
15 #include <rte_debug.h>
16 #include <rte_eal.h>
17 #include <rte_ether.h>
18 #include <ethdev_driver.h>
19 #include <rte_memcpy.h>
20 #include <rte_malloc.h>
21 #include <rte_random.h>
22
23 #include "base/ixgbe_common.h"
24 #include "ixgbe_ethdev.h"
25 #include "rte_pmd_ixgbe.h"
26
27 #define IXGBE_MAX_VFTA (128)
28 #define IXGBE_VF_MSG_SIZE_DEFAULT 1
29 #define IXGBE_VF_GET_QUEUE_MSG_SIZE 5
30 #define IXGBE_ETHERTYPE_FLOW_CTRL 0x8808
31
32 static inline uint16_t
dev_num_vf(struct rte_eth_dev * eth_dev)33 dev_num_vf(struct rte_eth_dev *eth_dev)
34 {
35 struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
36
37 return pci_dev->max_vfs;
38 }
39
40 static inline
ixgbe_vf_perm_addr_gen(struct rte_eth_dev * dev,uint16_t vf_num)41 int ixgbe_vf_perm_addr_gen(struct rte_eth_dev *dev, uint16_t vf_num)
42 {
43 unsigned char vf_mac_addr[RTE_ETHER_ADDR_LEN];
44 struct ixgbe_vf_info *vfinfo =
45 *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
46 uint16_t vfn;
47
48 for (vfn = 0; vfn < vf_num; vfn++) {
49 rte_eth_random_addr(vf_mac_addr);
50 /* keep the random address as default */
51 memcpy(vfinfo[vfn].vf_mac_addresses, vf_mac_addr,
52 RTE_ETHER_ADDR_LEN);
53 }
54
55 return 0;
56 }
57
58 static inline int
ixgbe_mb_intr_setup(struct rte_eth_dev * dev)59 ixgbe_mb_intr_setup(struct rte_eth_dev *dev)
60 {
61 struct ixgbe_interrupt *intr =
62 IXGBE_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
63
64 intr->mask |= IXGBE_EICR_MAILBOX;
65
66 return 0;
67 }
68
ixgbe_pf_host_init(struct rte_eth_dev * eth_dev)69 int ixgbe_pf_host_init(struct rte_eth_dev *eth_dev)
70 {
71 struct ixgbe_vf_info **vfinfo =
72 IXGBE_DEV_PRIVATE_TO_P_VFDATA(eth_dev->data->dev_private);
73 struct ixgbe_uta_info *uta_info =
74 IXGBE_DEV_PRIVATE_TO_UTA(eth_dev->data->dev_private);
75 struct ixgbe_hw *hw =
76 IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
77 uint16_t vf_num;
78 uint8_t nb_queue;
79 int ret = 0;
80
81 PMD_INIT_FUNC_TRACE();
82
83 RTE_ETH_DEV_SRIOV(eth_dev).active = 0;
84 vf_num = dev_num_vf(eth_dev);
85 if (vf_num == 0)
86 return ret;
87
88 *vfinfo = rte_zmalloc("vf_info", sizeof(struct ixgbe_vf_info) * vf_num, 0);
89 if (*vfinfo == NULL) {
90 PMD_INIT_LOG(ERR,
91 "Cannot allocate memory for private VF data");
92 return -ENOMEM;
93 }
94
95 ret = rte_eth_switch_domain_alloc(&(*vfinfo)->switch_domain_id);
96 if (ret) {
97 PMD_INIT_LOG(ERR,
98 "failed to allocate switch domain for device %d", ret);
99 rte_free(*vfinfo);
100 *vfinfo = NULL;
101 return ret;
102 }
103
104 memset(uta_info, 0, sizeof(struct ixgbe_uta_info));
105 hw->mac.mc_filter_type = 0;
106
107 if (vf_num >= RTE_ETH_32_POOLS) {
108 nb_queue = 2;
109 RTE_ETH_DEV_SRIOV(eth_dev).active = RTE_ETH_64_POOLS;
110 } else if (vf_num >= RTE_ETH_16_POOLS) {
111 nb_queue = 4;
112 RTE_ETH_DEV_SRIOV(eth_dev).active = RTE_ETH_32_POOLS;
113 } else {
114 nb_queue = 8;
115 RTE_ETH_DEV_SRIOV(eth_dev).active = RTE_ETH_16_POOLS;
116 }
117
118 RTE_ETH_DEV_SRIOV(eth_dev).nb_q_per_pool = nb_queue;
119 RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = vf_num;
120 RTE_ETH_DEV_SRIOV(eth_dev).def_pool_q_idx = (uint16_t)(vf_num * nb_queue);
121
122 ixgbe_vf_perm_addr_gen(eth_dev, vf_num);
123
124 /* init_mailbox_params */
125 hw->mbx.ops.init_params(hw);
126
127 /* set mb interrupt mask */
128 ixgbe_mb_intr_setup(eth_dev);
129
130 return ret;
131 }
132
ixgbe_pf_host_uninit(struct rte_eth_dev * eth_dev)133 void ixgbe_pf_host_uninit(struct rte_eth_dev *eth_dev)
134 {
135 struct ixgbe_vf_info **vfinfo;
136 uint16_t vf_num;
137 int ret;
138
139 PMD_INIT_FUNC_TRACE();
140
141 RTE_ETH_DEV_SRIOV(eth_dev).active = 0;
142 RTE_ETH_DEV_SRIOV(eth_dev).nb_q_per_pool = 0;
143 RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = 0;
144 RTE_ETH_DEV_SRIOV(eth_dev).def_pool_q_idx = 0;
145
146 vf_num = dev_num_vf(eth_dev);
147 if (vf_num == 0)
148 return;
149
150 vfinfo = IXGBE_DEV_PRIVATE_TO_P_VFDATA(eth_dev->data->dev_private);
151 if (*vfinfo == NULL)
152 return;
153
154 ret = rte_eth_switch_domain_free((*vfinfo)->switch_domain_id);
155 if (ret)
156 PMD_INIT_LOG(WARNING, "failed to free switch domain: %d", ret);
157
158 rte_free(*vfinfo);
159 *vfinfo = NULL;
160 }
161
162 static void
ixgbe_add_tx_flow_control_drop_filter(struct rte_eth_dev * eth_dev)163 ixgbe_add_tx_flow_control_drop_filter(struct rte_eth_dev *eth_dev)
164 {
165 struct ixgbe_hw *hw =
166 IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
167 struct ixgbe_filter_info *filter_info =
168 IXGBE_DEV_PRIVATE_TO_FILTER_INFO(eth_dev->data->dev_private);
169 uint16_t vf_num;
170 int i;
171 struct ixgbe_ethertype_filter ethertype_filter;
172
173 if (!hw->mac.ops.set_ethertype_anti_spoofing) {
174 PMD_DRV_LOG(INFO, "ether type anti-spoofing is not supported.\n");
175 return;
176 }
177
178 i = ixgbe_ethertype_filter_lookup(filter_info,
179 IXGBE_ETHERTYPE_FLOW_CTRL);
180 if (i >= 0) {
181 PMD_DRV_LOG(ERR, "A ether type filter entity for flow control already exists!\n");
182 return;
183 }
184
185 ethertype_filter.ethertype = IXGBE_ETHERTYPE_FLOW_CTRL;
186 ethertype_filter.etqf = IXGBE_ETQF_FILTER_EN |
187 IXGBE_ETQF_TX_ANTISPOOF |
188 IXGBE_ETHERTYPE_FLOW_CTRL;
189 ethertype_filter.etqs = 0;
190 ethertype_filter.conf = TRUE;
191 i = ixgbe_ethertype_filter_insert(filter_info,
192 ðertype_filter);
193 if (i < 0) {
194 PMD_DRV_LOG(ERR, "Cannot find an unused ether type filter entity for flow control.\n");
195 return;
196 }
197
198 IXGBE_WRITE_REG(hw, IXGBE_ETQF(i),
199 (IXGBE_ETQF_FILTER_EN |
200 IXGBE_ETQF_TX_ANTISPOOF |
201 IXGBE_ETHERTYPE_FLOW_CTRL));
202
203 vf_num = dev_num_vf(eth_dev);
204 for (i = 0; i < vf_num; i++)
205 hw->mac.ops.set_ethertype_anti_spoofing(hw, true, i);
206 }
207
ixgbe_pf_host_configure(struct rte_eth_dev * eth_dev)208 int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev)
209 {
210 uint32_t vtctl, fcrth;
211 uint32_t vfre_slot, vfre_offset;
212 uint16_t vf_num;
213 const uint8_t VFRE_SHIFT = 5; /* VFRE 32 bits per slot */
214 const uint8_t VFRE_MASK = (uint8_t)((1U << VFRE_SHIFT) - 1);
215 struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
216 uint32_t gpie, gcr_ext;
217 uint32_t vlanctrl;
218 int i;
219
220 vf_num = dev_num_vf(eth_dev);
221 if (vf_num == 0)
222 return -1;
223
224 /* enable VMDq and set the default pool for PF */
225 vtctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL);
226 vtctl |= IXGBE_VMD_CTL_VMDQ_EN;
227 vtctl &= ~IXGBE_VT_CTL_POOL_MASK;
228 vtctl |= RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx
229 << IXGBE_VT_CTL_POOL_SHIFT;
230 vtctl |= IXGBE_VT_CTL_REPLEN;
231 IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vtctl);
232
233 vfre_offset = vf_num & VFRE_MASK;
234 vfre_slot = (vf_num >> VFRE_SHIFT) > 0 ? 1 : 0;
235
236 /* Enable pools reserved to PF only */
237 IXGBE_WRITE_REG(hw, IXGBE_VFRE(vfre_slot), (~0U) << vfre_offset);
238 IXGBE_WRITE_REG(hw, IXGBE_VFRE(vfre_slot ^ 1), vfre_slot - 1);
239 IXGBE_WRITE_REG(hw, IXGBE_VFTE(vfre_slot), (~0U) << vfre_offset);
240 IXGBE_WRITE_REG(hw, IXGBE_VFTE(vfre_slot ^ 1), vfre_slot - 1);
241
242 /* PFDMA Tx General Switch Control Enables VMDQ loopback */
243 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
244
245 /* clear VMDq map to permanent rar 0 */
246 hw->mac.ops.clear_vmdq(hw, 0, IXGBE_CLEAR_VMDQ_ALL);
247
248 /* clear VMDq map to scan rar 127 */
249 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(hw->mac.num_rar_entries), 0);
250 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(hw->mac.num_rar_entries), 0);
251
252 /* set VMDq map to default PF pool */
253 hw->mac.ops.set_vmdq(hw, 0, RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx);
254
255 /*
256 * SW msut set GCR_EXT.VT_Mode the same as GPIE.VT_Mode
257 */
258 gcr_ext = IXGBE_READ_REG(hw, IXGBE_GCR_EXT);
259 gcr_ext &= ~IXGBE_GCR_EXT_VT_MODE_MASK;
260
261 gpie = IXGBE_READ_REG(hw, IXGBE_GPIE);
262 gpie &= ~IXGBE_GPIE_VTMODE_MASK;
263 gpie |= IXGBE_GPIE_MSIX_MODE | IXGBE_GPIE_PBA_SUPPORT;
264
265 switch (RTE_ETH_DEV_SRIOV(eth_dev).active) {
266 case RTE_ETH_64_POOLS:
267 gcr_ext |= IXGBE_GCR_EXT_VT_MODE_64;
268 gpie |= IXGBE_GPIE_VTMODE_64;
269 break;
270 case RTE_ETH_32_POOLS:
271 gcr_ext |= IXGBE_GCR_EXT_VT_MODE_32;
272 gpie |= IXGBE_GPIE_VTMODE_32;
273 break;
274 case RTE_ETH_16_POOLS:
275 gcr_ext |= IXGBE_GCR_EXT_VT_MODE_16;
276 gpie |= IXGBE_GPIE_VTMODE_16;
277 break;
278 }
279
280 IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext);
281 IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
282
283 /*
284 * enable vlan filtering and allow all vlan tags through
285 */
286 vlanctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
287 vlanctrl |= IXGBE_VLNCTRL_VFE; /* enable vlan filters */
288 IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlanctrl);
289
290 /* VFTA - enable all vlan filters */
291 for (i = 0; i < IXGBE_MAX_VFTA; i++)
292 IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), 0xFFFFFFFF);
293
294 /* Enable MAC Anti-Spoofing */
295 hw->mac.ops.set_mac_anti_spoofing(hw, FALSE, vf_num);
296
297 /* set flow control threshold to max to avoid tx switch hang */
298 for (i = 0; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
299 IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(i), 0);
300 fcrth = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(i)) - 32;
301 IXGBE_WRITE_REG(hw, IXGBE_FCRTH_82599(i), fcrth);
302 }
303
304 ixgbe_add_tx_flow_control_drop_filter(eth_dev);
305
306 return 0;
307 }
308
309 static void
set_rx_mode(struct rte_eth_dev * dev)310 set_rx_mode(struct rte_eth_dev *dev)
311 {
312 struct rte_eth_dev_data *dev_data = dev->data;
313 struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
314 u32 fctrl, vmolr = IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE;
315 uint16_t vfn = dev_num_vf(dev);
316
317 /* Check for Promiscuous and All Multicast modes */
318 fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
319
320 /* set all bits that we expect to always be set */
321 fctrl &= ~IXGBE_FCTRL_SBP; /* disable store-bad-packets */
322 fctrl |= IXGBE_FCTRL_BAM;
323
324 /* clear the bits we are changing the status of */
325 fctrl &= ~(IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE);
326
327 if (dev_data->promiscuous) {
328 fctrl |= (IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE);
329 vmolr |= (IXGBE_VMOLR_ROPE | IXGBE_VMOLR_MPE);
330 } else {
331 if (dev_data->all_multicast) {
332 fctrl |= IXGBE_FCTRL_MPE;
333 vmolr |= IXGBE_VMOLR_MPE;
334 } else {
335 vmolr |= IXGBE_VMOLR_ROMPE;
336 }
337 }
338
339 if (hw->mac.type != ixgbe_mac_82598EB) {
340 vmolr |= IXGBE_READ_REG(hw, IXGBE_VMOLR(vfn)) &
341 ~(IXGBE_VMOLR_MPE | IXGBE_VMOLR_ROMPE |
342 IXGBE_VMOLR_ROPE);
343 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vfn), vmolr);
344 }
345
346 IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl);
347
348 ixgbe_vlan_hw_strip_config(dev);
349 }
350
351 static inline void
ixgbe_vf_reset_event(struct rte_eth_dev * dev,uint16_t vf)352 ixgbe_vf_reset_event(struct rte_eth_dev *dev, uint16_t vf)
353 {
354 struct ixgbe_hw *hw =
355 IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
356 struct ixgbe_vf_info *vfinfo =
357 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
358 int rar_entry = hw->mac.num_rar_entries - (vf + 1);
359 uint32_t vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
360
361 vmolr |= (IXGBE_VMOLR_ROPE |
362 IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE);
363 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
364
365 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
366
367 /* reset multicast table array for vf */
368 vfinfo[vf].num_vf_mc_hashes = 0;
369
370 /* reset rx mode */
371 set_rx_mode(dev);
372
373 hw->mac.ops.clear_rar(hw, rar_entry);
374 }
375
376 static inline void
ixgbe_vf_reset_msg(struct rte_eth_dev * dev,uint16_t vf)377 ixgbe_vf_reset_msg(struct rte_eth_dev *dev, uint16_t vf)
378 {
379 struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
380 uint32_t reg;
381 uint32_t reg_offset, vf_shift;
382 const uint8_t VFRE_SHIFT = 5; /* VFRE 32 bits per slot */
383 const uint8_t VFRE_MASK = (uint8_t)((1U << VFRE_SHIFT) - 1);
384 uint8_t nb_q_per_pool;
385 int i;
386
387 vf_shift = vf & VFRE_MASK;
388 reg_offset = (vf >> VFRE_SHIFT) > 0 ? 1 : 0;
389
390 /* enable transmit for vf */
391 reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
392 reg |= (reg | (1 << vf_shift));
393 IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg);
394
395 /* enable all queue drop for IOV */
396 nb_q_per_pool = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
397 for (i = vf * nb_q_per_pool; i < (vf + 1) * nb_q_per_pool; i++) {
398 IXGBE_WRITE_FLUSH(hw);
399 reg = IXGBE_QDE_ENABLE | IXGBE_QDE_WRITE;
400 reg |= i << IXGBE_QDE_IDX_SHIFT;
401 IXGBE_WRITE_REG(hw, IXGBE_QDE, reg);
402 }
403
404 /* enable receive for vf */
405 reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
406 reg |= (reg | (1 << vf_shift));
407 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg);
408
409 /* Enable counting of spoofed packets in the SSVPC register */
410 reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
411 reg |= (1 << vf_shift);
412 IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
413
414 ixgbe_vf_reset_event(dev, vf);
415 }
416
417 static int
ixgbe_disable_vf_mc_promisc(struct rte_eth_dev * dev,uint32_t vf)418 ixgbe_disable_vf_mc_promisc(struct rte_eth_dev *dev, uint32_t vf)
419 {
420 struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
421 uint32_t vmolr;
422
423 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
424
425 PMD_DRV_LOG(INFO, "VF %u: disabling multicast promiscuous\n", vf);
426
427 vmolr &= ~IXGBE_VMOLR_MPE;
428
429 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
430
431 return 0;
432 }
433
434 static int
ixgbe_vf_reset(struct rte_eth_dev * dev,uint16_t vf,uint32_t * msgbuf)435 ixgbe_vf_reset(struct rte_eth_dev *dev, uint16_t vf, uint32_t *msgbuf)
436 {
437 struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
438 struct ixgbe_vf_info *vfinfo =
439 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
440 unsigned char *vf_mac = vfinfo[vf].vf_mac_addresses;
441 int rar_entry = hw->mac.num_rar_entries - (vf + 1);
442 uint8_t *new_mac = (uint8_t *)(&msgbuf[1]);
443
444 ixgbe_vf_reset_msg(dev, vf);
445
446 hw->mac.ops.set_rar(hw, rar_entry, vf_mac, vf, IXGBE_RAH_AV);
447
448 /* Disable multicast promiscuous at reset */
449 ixgbe_disable_vf_mc_promisc(dev, vf);
450
451 /* reply to reset with ack and vf mac address */
452 msgbuf[0] = IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK;
453 rte_memcpy(new_mac, vf_mac, RTE_ETHER_ADDR_LEN);
454 /*
455 * Piggyback the multicast filter type so VF can compute the
456 * correct vectors
457 */
458 msgbuf[3] = hw->mac.mc_filter_type;
459 ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
460
461 return 0;
462 }
463
464 static int
ixgbe_vf_set_mac_addr(struct rte_eth_dev * dev,uint32_t vf,uint32_t * msgbuf)465 ixgbe_vf_set_mac_addr(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
466 {
467 struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
468 struct ixgbe_vf_info *vfinfo =
469 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
470 int rar_entry = hw->mac.num_rar_entries - (vf + 1);
471 uint8_t *new_mac = (uint8_t *)(&msgbuf[1]);
472
473 if (rte_is_valid_assigned_ether_addr(
474 (struct rte_ether_addr *)new_mac)) {
475 rte_memcpy(vfinfo[vf].vf_mac_addresses, new_mac, 6);
476 return hw->mac.ops.set_rar(hw, rar_entry, new_mac, vf, IXGBE_RAH_AV);
477 }
478 return -1;
479 }
480
481 static int
ixgbe_vf_set_multicast(struct rte_eth_dev * dev,uint32_t vf,uint32_t * msgbuf)482 ixgbe_vf_set_multicast(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
483 {
484 struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
485 struct ixgbe_vf_info *vfinfo =
486 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
487 int nb_entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >>
488 IXGBE_VT_MSGINFO_SHIFT;
489 uint16_t *hash_list = (uint16_t *)&msgbuf[1];
490 uint32_t mta_idx;
491 uint32_t mta_shift;
492 const uint32_t IXGBE_MTA_INDEX_MASK = 0x7F;
493 const uint32_t IXGBE_MTA_BIT_SHIFT = 5;
494 const uint32_t IXGBE_MTA_BIT_MASK = (0x1 << IXGBE_MTA_BIT_SHIFT) - 1;
495 uint32_t reg_val;
496 int i;
497 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
498
499 /* Disable multicast promiscuous first */
500 ixgbe_disable_vf_mc_promisc(dev, vf);
501
502 /* only so many hash values supported */
503 nb_entries = RTE_MIN(nb_entries, IXGBE_MAX_VF_MC_ENTRIES);
504
505 /* store the mc entries */
506 vfinfo->num_vf_mc_hashes = (uint16_t)nb_entries;
507 for (i = 0; i < nb_entries; i++) {
508 vfinfo->vf_mc_hashes[i] = hash_list[i];
509 }
510
511 if (nb_entries == 0) {
512 vmolr &= ~IXGBE_VMOLR_ROMPE;
513 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
514 return 0;
515 }
516
517 for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
518 mta_idx = (vfinfo->vf_mc_hashes[i] >> IXGBE_MTA_BIT_SHIFT)
519 & IXGBE_MTA_INDEX_MASK;
520 mta_shift = vfinfo->vf_mc_hashes[i] & IXGBE_MTA_BIT_MASK;
521 reg_val = IXGBE_READ_REG(hw, IXGBE_MTA(mta_idx));
522 reg_val |= (1 << mta_shift);
523 IXGBE_WRITE_REG(hw, IXGBE_MTA(mta_idx), reg_val);
524 }
525
526 vmolr |= IXGBE_VMOLR_ROMPE;
527 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
528
529 return 0;
530 }
531
532 static int
ixgbe_vf_set_vlan(struct rte_eth_dev * dev,uint32_t vf,uint32_t * msgbuf)533 ixgbe_vf_set_vlan(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
534 {
535 int add, vid;
536 struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
537 struct ixgbe_vf_info *vfinfo =
538 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
539
540 add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
541 >> IXGBE_VT_MSGINFO_SHIFT;
542 vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
543
544 if (add)
545 vfinfo[vf].vlan_count++;
546 else if (vfinfo[vf].vlan_count)
547 vfinfo[vf].vlan_count--;
548 return hw->mac.ops.set_vfta(hw, vid, vf, (bool)add, false);
549 }
550
551 static int
ixgbe_set_vf_lpe(struct rte_eth_dev * dev,uint32_t vf,uint32_t * msgbuf)552 ixgbe_set_vf_lpe(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
553 {
554 struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
555 uint32_t max_frame = msgbuf[1];
556 uint32_t max_frs;
557 uint32_t hlreg0;
558
559 /* X540 and X550 support jumbo frames in IOV mode */
560 if (hw->mac.type != ixgbe_mac_X540 &&
561 hw->mac.type != ixgbe_mac_X550 &&
562 hw->mac.type != ixgbe_mac_X550EM_x &&
563 hw->mac.type != ixgbe_mac_X550EM_a) {
564 struct ixgbe_vf_info *vfinfo =
565 *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
566
567 switch (vfinfo[vf].api_version) {
568 case ixgbe_mbox_api_11:
569 case ixgbe_mbox_api_12:
570 case ixgbe_mbox_api_13:
571 /**
572 * Version 1.1&1.2&1.3 supports jumbo frames on VFs
573 * if PF has jumbo frames enabled which means legacy
574 * VFs are disabled.
575 */
576 if (dev->data->mtu > RTE_ETHER_MTU)
577 break;
578 /* fall through */
579 default:
580 /**
581 * If the PF or VF are running w/ jumbo frames enabled,
582 * we return -1 as we cannot support jumbo frames on
583 * legacy VFs.
584 */
585 if (max_frame > IXGBE_ETH_MAX_LEN ||
586 dev->data->mtu > RTE_ETHER_MTU)
587 return -1;
588 break;
589 }
590 }
591
592 if (max_frame < RTE_ETHER_MIN_LEN ||
593 max_frame > RTE_ETHER_MAX_JUMBO_FRAME_LEN)
594 return -1;
595
596 max_frs = (IXGBE_READ_REG(hw, IXGBE_MAXFRS) &
597 IXGBE_MHADD_MFS_MASK) >> IXGBE_MHADD_MFS_SHIFT;
598 if (max_frs < max_frame) {
599 hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
600 if (max_frame > IXGBE_ETH_MAX_LEN)
601 hlreg0 |= IXGBE_HLREG0_JUMBOEN;
602 else
603 hlreg0 &= ~IXGBE_HLREG0_JUMBOEN;
604 IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
605
606 max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT;
607 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
608 }
609
610 return 0;
611 }
612
613 static int
ixgbe_negotiate_vf_api(struct rte_eth_dev * dev,uint32_t vf,uint32_t * msgbuf)614 ixgbe_negotiate_vf_api(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
615 {
616 uint32_t api_version = msgbuf[1];
617 struct ixgbe_vf_info *vfinfo =
618 *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
619
620 switch (api_version) {
621 case ixgbe_mbox_api_10:
622 case ixgbe_mbox_api_11:
623 case ixgbe_mbox_api_12:
624 case ixgbe_mbox_api_13:
625 vfinfo[vf].api_version = (uint8_t)api_version;
626 return 0;
627 default:
628 break;
629 }
630
631 PMD_DRV_LOG(ERR, "Negotiate invalid api version %u from VF %d\n",
632 api_version, vf);
633
634 return -1;
635 }
636
637 static int
ixgbe_get_vf_queues(struct rte_eth_dev * dev,uint32_t vf,uint32_t * msgbuf)638 ixgbe_get_vf_queues(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
639 {
640 struct ixgbe_vf_info *vfinfo =
641 *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
642 uint32_t default_q = vf * RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
643 struct rte_eth_conf *eth_conf;
644 struct rte_eth_vmdq_dcb_tx_conf *vmdq_dcb_tx_conf;
645 u8 num_tcs;
646 struct ixgbe_hw *hw;
647 u32 vmvir;
648 #define IXGBE_VMVIR_VLANA_MASK 0xC0000000
649 #define IXGBE_VMVIR_VLAN_VID_MASK 0x00000FFF
650 #define IXGBE_VMVIR_VLAN_UP_MASK 0x0000E000
651 #define VLAN_PRIO_SHIFT 13
652 u32 vlana;
653 u32 vid;
654 u32 user_priority;
655
656 /* Verify if the PF supports the mbox APIs version or not */
657 switch (vfinfo[vf].api_version) {
658 case ixgbe_mbox_api_20:
659 case ixgbe_mbox_api_11:
660 case ixgbe_mbox_api_12:
661 case ixgbe_mbox_api_13:
662 break;
663 default:
664 return -1;
665 }
666
667 /* Notify VF of Rx and Tx queue number */
668 msgbuf[IXGBE_VF_RX_QUEUES] = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
669 msgbuf[IXGBE_VF_TX_QUEUES] = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
670
671 /* Notify VF of default queue */
672 msgbuf[IXGBE_VF_DEF_QUEUE] = default_q;
673
674 /* Notify VF of number of DCB traffic classes */
675 eth_conf = &dev->data->dev_conf;
676 switch (eth_conf->txmode.mq_mode) {
677 case RTE_ETH_MQ_TX_NONE:
678 case RTE_ETH_MQ_TX_DCB:
679 PMD_DRV_LOG(ERR, "PF must work with virtualization for VF %u"
680 ", but its tx mode = %d\n", vf,
681 eth_conf->txmode.mq_mode);
682 return -1;
683
684 case RTE_ETH_MQ_TX_VMDQ_DCB:
685 vmdq_dcb_tx_conf = ð_conf->tx_adv_conf.vmdq_dcb_tx_conf;
686 switch (vmdq_dcb_tx_conf->nb_queue_pools) {
687 case RTE_ETH_16_POOLS:
688 num_tcs = RTE_ETH_8_TCS;
689 break;
690 case RTE_ETH_32_POOLS:
691 num_tcs = RTE_ETH_4_TCS;
692 break;
693 default:
694 return -1;
695 }
696 break;
697
698 /* RTE_ETH_MQ_TX_VMDQ_ONLY, DCB not enabled */
699 case RTE_ETH_MQ_TX_VMDQ_ONLY:
700 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
701 vmvir = IXGBE_READ_REG(hw, IXGBE_VMVIR(vf));
702 vlana = vmvir & IXGBE_VMVIR_VLANA_MASK;
703 vid = vmvir & IXGBE_VMVIR_VLAN_VID_MASK;
704 user_priority =
705 (vmvir & IXGBE_VMVIR_VLAN_UP_MASK) >> VLAN_PRIO_SHIFT;
706 if ((vlana == IXGBE_VMVIR_VLANA_DEFAULT) &&
707 ((vid != 0) || (user_priority != 0)))
708 num_tcs = 1;
709 else
710 num_tcs = 0;
711 break;
712
713 default:
714 PMD_DRV_LOG(ERR, "PF work with invalid mode = %d\n",
715 eth_conf->txmode.mq_mode);
716 return -1;
717 }
718 msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;
719
720 return 0;
721 }
722
723 static int
ixgbe_set_vf_mc_promisc(struct rte_eth_dev * dev,uint32_t vf,uint32_t * msgbuf)724 ixgbe_set_vf_mc_promisc(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
725 {
726 struct ixgbe_vf_info *vfinfo =
727 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
728 struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
729 int xcast_mode = msgbuf[1]; /* msgbuf contains the flag to enable */
730 u32 vmolr, fctrl, disable, enable;
731
732 switch (vfinfo[vf].api_version) {
733 case ixgbe_mbox_api_12:
734 /* promisc introduced in 1.3 version */
735 if (xcast_mode == IXGBEVF_XCAST_MODE_PROMISC)
736 return -EOPNOTSUPP;
737 break;
738 /* Fall threw */
739 case ixgbe_mbox_api_13:
740 break;
741 default:
742 return -1;
743 }
744
745 if (vfinfo[vf].xcast_mode == xcast_mode)
746 goto out;
747
748 switch (xcast_mode) {
749 case IXGBEVF_XCAST_MODE_NONE:
750 disable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE |
751 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
752 enable = 0;
753 break;
754 case IXGBEVF_XCAST_MODE_MULTI:
755 disable = IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
756 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE;
757 break;
758 case IXGBEVF_XCAST_MODE_ALLMULTI:
759 disable = IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
760 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE | IXGBE_VMOLR_MPE;
761 break;
762 case IXGBEVF_XCAST_MODE_PROMISC:
763 if (hw->mac.type <= ixgbe_mac_82599EB)
764 return -1;
765
766 fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
767 if (!(fctrl & IXGBE_FCTRL_UPE)) {
768 /* VF promisc requires PF in promisc */
769 PMD_DRV_LOG(ERR,
770 "Enabling VF promisc requires PF in promisc\n");
771 return -1;
772 }
773
774 disable = 0;
775 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE |
776 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
777 break;
778 default:
779 return -1;
780 }
781
782 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
783 vmolr &= ~disable;
784 vmolr |= enable;
785 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
786 vfinfo[vf].xcast_mode = xcast_mode;
787
788 out:
789 msgbuf[1] = xcast_mode;
790
791 return 0;
792 }
793
794 static int
ixgbe_set_vf_macvlan_msg(struct rte_eth_dev * dev,uint32_t vf,uint32_t * msgbuf)795 ixgbe_set_vf_macvlan_msg(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
796 {
797 struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
798 struct ixgbe_vf_info *vf_info =
799 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
800 uint8_t *new_mac = (uint8_t *)(&msgbuf[1]);
801 int index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >>
802 IXGBE_VT_MSGINFO_SHIFT;
803
804 if (index) {
805 if (!rte_is_valid_assigned_ether_addr(
806 (struct rte_ether_addr *)new_mac)) {
807 PMD_DRV_LOG(ERR, "set invalid mac vf:%d\n", vf);
808 return -1;
809 }
810
811 vf_info[vf].mac_count++;
812
813 hw->mac.ops.set_rar(hw, vf_info[vf].mac_count,
814 new_mac, vf, IXGBE_RAH_AV);
815 } else {
816 if (vf_info[vf].mac_count) {
817 hw->mac.ops.clear_rar(hw, vf_info[vf].mac_count);
818 vf_info[vf].mac_count = 0;
819 }
820 }
821 return 0;
822 }
823
824 static int
ixgbe_rcv_msg_from_vf(struct rte_eth_dev * dev,uint16_t vf)825 ixgbe_rcv_msg_from_vf(struct rte_eth_dev *dev, uint16_t vf)
826 {
827 uint16_t mbx_size = IXGBE_VFMAILBOX_SIZE;
828 uint16_t msg_size = IXGBE_VF_MSG_SIZE_DEFAULT;
829 uint32_t msgbuf[IXGBE_VFMAILBOX_SIZE];
830 int32_t retval;
831 struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
832 struct ixgbe_vf_info *vfinfo =
833 *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
834 struct rte_pmd_ixgbe_mb_event_param ret_param;
835
836 retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
837 if (retval) {
838 PMD_DRV_LOG(ERR, "Error mbx recv msg from VF %d", vf);
839 return retval;
840 }
841
842 /* do nothing with the message already been processed */
843 if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
844 return retval;
845
846 /* flush the ack before we write any messages back */
847 IXGBE_WRITE_FLUSH(hw);
848
849 /**
850 * initialise structure to send to user application
851 * will return response from user in retval field
852 */
853 ret_param.retval = RTE_PMD_IXGBE_MB_EVENT_PROCEED;
854 ret_param.vfid = vf;
855 ret_param.msg_type = msgbuf[0] & 0xFFFF;
856 ret_param.msg = (void *)msgbuf;
857
858 /* perform VF reset */
859 if (msgbuf[0] == IXGBE_VF_RESET) {
860 int ret = ixgbe_vf_reset(dev, vf, msgbuf);
861
862 vfinfo[vf].clear_to_send = true;
863
864 /* notify application about VF reset */
865 rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_VF_MBOX,
866 &ret_param);
867 return ret;
868 }
869
870 /**
871 * ask user application if we allowed to perform those functions
872 * if we get ret_param.retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED
873 * then business as usual,
874 * if 0, do nothing and send ACK to VF
875 * if ret_param.retval > 1, do nothing and send NAK to VF
876 */
877 rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_VF_MBOX, &ret_param);
878
879 retval = ret_param.retval;
880
881 /* check & process VF to PF mailbox message */
882 switch ((msgbuf[0] & 0xFFFF)) {
883 case IXGBE_VF_SET_MAC_ADDR:
884 if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
885 retval = ixgbe_vf_set_mac_addr(dev, vf, msgbuf);
886 break;
887 case IXGBE_VF_SET_MULTICAST:
888 if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
889 retval = ixgbe_vf_set_multicast(dev, vf, msgbuf);
890 break;
891 case IXGBE_VF_SET_LPE:
892 if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
893 retval = ixgbe_set_vf_lpe(dev, vf, msgbuf);
894 break;
895 case IXGBE_VF_SET_VLAN:
896 if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
897 retval = ixgbe_vf_set_vlan(dev, vf, msgbuf);
898 break;
899 case IXGBE_VF_API_NEGOTIATE:
900 retval = ixgbe_negotiate_vf_api(dev, vf, msgbuf);
901 break;
902 case IXGBE_VF_GET_QUEUES:
903 retval = ixgbe_get_vf_queues(dev, vf, msgbuf);
904 msg_size = IXGBE_VF_GET_QUEUE_MSG_SIZE;
905 break;
906 case IXGBE_VF_UPDATE_XCAST_MODE:
907 if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
908 retval = ixgbe_set_vf_mc_promisc(dev, vf, msgbuf);
909 break;
910 case IXGBE_VF_SET_MACVLAN:
911 if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
912 retval = ixgbe_set_vf_macvlan_msg(dev, vf, msgbuf);
913 break;
914 default:
915 PMD_DRV_LOG(DEBUG, "Unhandled Msg %8.8x", (unsigned)msgbuf[0]);
916 retval = IXGBE_ERR_MBX;
917 break;
918 }
919
920 /* response the VF according to the message process result */
921 if (retval)
922 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
923 else
924 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
925
926 msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
927
928 ixgbe_write_mbx(hw, msgbuf, msg_size, vf);
929
930 return retval;
931 }
932
933 static inline void
ixgbe_rcv_ack_from_vf(struct rte_eth_dev * dev,uint16_t vf)934 ixgbe_rcv_ack_from_vf(struct rte_eth_dev *dev, uint16_t vf)
935 {
936 uint32_t msg = IXGBE_VT_MSGTYPE_NACK;
937 struct ixgbe_hw *hw =
938 IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
939 struct ixgbe_vf_info *vfinfo =
940 *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
941
942 if (!vfinfo[vf].clear_to_send)
943 ixgbe_write_mbx(hw, &msg, 1, vf);
944 }
945
ixgbe_pf_mbx_process(struct rte_eth_dev * eth_dev)946 void ixgbe_pf_mbx_process(struct rte_eth_dev *eth_dev)
947 {
948 uint16_t vf;
949 struct ixgbe_hw *hw =
950 IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
951
952 for (vf = 0; vf < dev_num_vf(eth_dev); vf++) {
953 /* check & process vf function level reset */
954 if (!ixgbe_check_for_rst(hw, vf))
955 ixgbe_vf_reset_event(eth_dev, vf);
956
957 /* check & process vf mailbox messages */
958 if (!ixgbe_check_for_msg(hw, vf))
959 ixgbe_rcv_msg_from_vf(eth_dev, vf);
960
961 /* check & process acks from vf */
962 if (!ixgbe_check_for_ack(hw, vf))
963 ixgbe_rcv_ack_from_vf(eth_dev, vf);
964 }
965 }
966