New upstream version 18.11.1
[deb_dpdk.git] / drivers / net / ixgbe / ixgbe_pf.c
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 <rte_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
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
41 int ixgbe_vf_perm_addr_gen(struct rte_eth_dev *dev, uint16_t vf_num)
42 {
43         unsigned char vf_mac_addr[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                 eth_random_addr(vf_mac_addr);
50                 /* keep the random address as default */
51                 memcpy(vfinfo[vfn].vf_mac_addresses, vf_mac_addr,
52                            ETHER_ADDR_LEN);
53         }
54
55         return 0;
56 }
57
58 static inline int
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
69 void 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_mirror_info *mirror_info =
74         IXGBE_DEV_PRIVATE_TO_PFDATA(eth_dev->data->dev_private);
75         struct ixgbe_uta_info *uta_info =
76         IXGBE_DEV_PRIVATE_TO_UTA(eth_dev->data->dev_private);
77         struct ixgbe_hw *hw =
78                 IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
79         uint16_t vf_num;
80         uint8_t nb_queue;
81
82         PMD_INIT_FUNC_TRACE();
83
84         RTE_ETH_DEV_SRIOV(eth_dev).active = 0;
85         vf_num = dev_num_vf(eth_dev);
86         if (vf_num == 0)
87                 return;
88
89         *vfinfo = rte_zmalloc("vf_info", sizeof(struct ixgbe_vf_info) * vf_num, 0);
90         if (*vfinfo == NULL)
91                 rte_panic("Cannot allocate memory for private VF data\n");
92
93         rte_eth_switch_domain_alloc(&(*vfinfo)->switch_domain_id);
94
95         memset(mirror_info, 0, sizeof(struct ixgbe_mirror_info));
96         memset(uta_info, 0, sizeof(struct ixgbe_uta_info));
97         hw->mac.mc_filter_type = 0;
98
99         if (vf_num >= ETH_32_POOLS) {
100                 nb_queue = 2;
101                 RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_64_POOLS;
102         } else if (vf_num >= ETH_16_POOLS) {
103                 nb_queue = 4;
104                 RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_32_POOLS;
105         } else {
106                 nb_queue = 8;
107                 RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_16_POOLS;
108         }
109
110         RTE_ETH_DEV_SRIOV(eth_dev).nb_q_per_pool = nb_queue;
111         RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = vf_num;
112         RTE_ETH_DEV_SRIOV(eth_dev).def_pool_q_idx = (uint16_t)(vf_num * nb_queue);
113
114         ixgbe_vf_perm_addr_gen(eth_dev, vf_num);
115
116         /* init_mailbox_params */
117         hw->mbx.ops.init_params(hw);
118
119         /* set mb interrupt mask */
120         ixgbe_mb_intr_setup(eth_dev);
121 }
122
123 void ixgbe_pf_host_uninit(struct rte_eth_dev *eth_dev)
124 {
125         struct ixgbe_vf_info **vfinfo;
126         uint16_t vf_num;
127         int ret;
128
129         PMD_INIT_FUNC_TRACE();
130
131         RTE_ETH_DEV_SRIOV(eth_dev).active = 0;
132         RTE_ETH_DEV_SRIOV(eth_dev).nb_q_per_pool = 0;
133         RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = 0;
134         RTE_ETH_DEV_SRIOV(eth_dev).def_pool_q_idx = 0;
135
136         vf_num = dev_num_vf(eth_dev);
137         if (vf_num == 0)
138                 return;
139
140         vfinfo = IXGBE_DEV_PRIVATE_TO_P_VFDATA(eth_dev->data->dev_private);
141         if (*vfinfo == NULL)
142                 return;
143
144         ret = rte_eth_switch_domain_free((*vfinfo)->switch_domain_id);
145         if (ret)
146                 PMD_INIT_LOG(WARNING, "failed to free switch domain: %d", ret);
147
148         rte_free(*vfinfo);
149         *vfinfo = NULL;
150 }
151
152 static void
153 ixgbe_add_tx_flow_control_drop_filter(struct rte_eth_dev *eth_dev)
154 {
155         struct ixgbe_hw *hw =
156                 IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
157         struct ixgbe_filter_info *filter_info =
158                 IXGBE_DEV_PRIVATE_TO_FILTER_INFO(eth_dev->data->dev_private);
159         uint16_t vf_num;
160         int i;
161         struct ixgbe_ethertype_filter ethertype_filter;
162
163         if (!hw->mac.ops.set_ethertype_anti_spoofing) {
164                 RTE_LOG(INFO, PMD, "ether type anti-spoofing is not"
165                         " supported.\n");
166                 return;
167         }
168
169         i = ixgbe_ethertype_filter_lookup(filter_info,
170                                           IXGBE_ETHERTYPE_FLOW_CTRL);
171         if (i >= 0) {
172                 RTE_LOG(ERR, PMD, "A ether type filter"
173                         " entity for flow control already exists!\n");
174                 return;
175         }
176
177         ethertype_filter.ethertype = IXGBE_ETHERTYPE_FLOW_CTRL;
178         ethertype_filter.etqf = IXGBE_ETQF_FILTER_EN |
179                                 IXGBE_ETQF_TX_ANTISPOOF |
180                                 IXGBE_ETHERTYPE_FLOW_CTRL;
181         ethertype_filter.etqs = 0;
182         ethertype_filter.conf = TRUE;
183         i = ixgbe_ethertype_filter_insert(filter_info,
184                                           &ethertype_filter);
185         if (i < 0) {
186                 RTE_LOG(ERR, PMD, "Cannot find an unused ether type filter"
187                         " entity for flow control.\n");
188                 return;
189         }
190
191         IXGBE_WRITE_REG(hw, IXGBE_ETQF(i),
192                         (IXGBE_ETQF_FILTER_EN |
193                         IXGBE_ETQF_TX_ANTISPOOF |
194                         IXGBE_ETHERTYPE_FLOW_CTRL));
195
196         vf_num = dev_num_vf(eth_dev);
197         for (i = 0; i < vf_num; i++)
198                 hw->mac.ops.set_ethertype_anti_spoofing(hw, true, i);
199 }
200
201 int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev)
202 {
203         uint32_t vtctl, fcrth;
204         uint32_t vfre_slot, vfre_offset;
205         uint16_t vf_num;
206         const uint8_t VFRE_SHIFT = 5;  /* VFRE 32 bits per slot */
207         const uint8_t VFRE_MASK = (uint8_t)((1U << VFRE_SHIFT) - 1);
208         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
209         uint32_t gpie, gcr_ext;
210         uint32_t vlanctrl;
211         int i;
212
213         vf_num = dev_num_vf(eth_dev);
214         if (vf_num == 0)
215                 return -1;
216
217         /* enable VMDq and set the default pool for PF */
218         vtctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL);
219         vtctl |= IXGBE_VMD_CTL_VMDQ_EN;
220         vtctl &= ~IXGBE_VT_CTL_POOL_MASK;
221         vtctl |= RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx
222                 << IXGBE_VT_CTL_POOL_SHIFT;
223         vtctl |= IXGBE_VT_CTL_REPLEN;
224         IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vtctl);
225
226         vfre_offset = vf_num & VFRE_MASK;
227         vfre_slot = (vf_num >> VFRE_SHIFT) > 0 ? 1 : 0;
228
229         /* Enable pools reserved to PF only */
230         IXGBE_WRITE_REG(hw, IXGBE_VFRE(vfre_slot), (~0U) << vfre_offset);
231         IXGBE_WRITE_REG(hw, IXGBE_VFRE(vfre_slot ^ 1), vfre_slot - 1);
232         IXGBE_WRITE_REG(hw, IXGBE_VFTE(vfre_slot), (~0U) << vfre_offset);
233         IXGBE_WRITE_REG(hw, IXGBE_VFTE(vfre_slot ^ 1), vfre_slot - 1);
234
235         /* PFDMA Tx General Switch Control Enables VMDQ loopback */
236         IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
237
238         /* clear VMDq map to perment rar 0 */
239         hw->mac.ops.clear_vmdq(hw, 0, IXGBE_CLEAR_VMDQ_ALL);
240
241         /* clear VMDq map to scan rar 127 */
242         IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(hw->mac.num_rar_entries), 0);
243         IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(hw->mac.num_rar_entries), 0);
244
245         /* set VMDq map to default PF pool */
246         hw->mac.ops.set_vmdq(hw, 0, RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx);
247
248         /*
249          * SW msut set GCR_EXT.VT_Mode the same as GPIE.VT_Mode
250          */
251         gcr_ext = IXGBE_READ_REG(hw, IXGBE_GCR_EXT);
252         gcr_ext &= ~IXGBE_GCR_EXT_VT_MODE_MASK;
253
254         gpie = IXGBE_READ_REG(hw, IXGBE_GPIE);
255         gpie &= ~IXGBE_GPIE_VTMODE_MASK;
256         gpie |= IXGBE_GPIE_MSIX_MODE | IXGBE_GPIE_PBA_SUPPORT;
257
258         switch (RTE_ETH_DEV_SRIOV(eth_dev).active) {
259         case ETH_64_POOLS:
260                 gcr_ext |= IXGBE_GCR_EXT_VT_MODE_64;
261                 gpie |= IXGBE_GPIE_VTMODE_64;
262                 break;
263         case ETH_32_POOLS:
264                 gcr_ext |= IXGBE_GCR_EXT_VT_MODE_32;
265                 gpie |= IXGBE_GPIE_VTMODE_32;
266                 break;
267         case ETH_16_POOLS:
268                 gcr_ext |= IXGBE_GCR_EXT_VT_MODE_16;
269                 gpie |= IXGBE_GPIE_VTMODE_16;
270                 break;
271         }
272
273         IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext);
274         IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
275
276         /*
277          * enable vlan filtering and allow all vlan tags through
278          */
279         vlanctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
280         vlanctrl |= IXGBE_VLNCTRL_VFE; /* enable vlan filters */
281         IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlanctrl);
282
283         /* VFTA - enable all vlan filters */
284         for (i = 0; i < IXGBE_MAX_VFTA; i++)
285                 IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), 0xFFFFFFFF);
286
287         /* Enable MAC Anti-Spoofing */
288         hw->mac.ops.set_mac_anti_spoofing(hw, FALSE, vf_num);
289
290         /* set flow control threshold to max to avoid tx switch hang */
291         for (i = 0; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
292                 IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(i), 0);
293                 fcrth = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(i)) - 32;
294                 IXGBE_WRITE_REG(hw, IXGBE_FCRTH_82599(i), fcrth);
295         }
296
297         ixgbe_add_tx_flow_control_drop_filter(eth_dev);
298
299         return 0;
300 }
301
302 static void
303 set_rx_mode(struct rte_eth_dev *dev)
304 {
305         struct rte_eth_dev_data *dev_data = dev->data;
306         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
307         u32 fctrl, vmolr = IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE;
308         uint16_t vfn = dev_num_vf(dev);
309
310         /* Check for Promiscuous and All Multicast modes */
311         fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
312
313         /* set all bits that we expect to always be set */
314         fctrl &= ~IXGBE_FCTRL_SBP; /* disable store-bad-packets */
315         fctrl |= IXGBE_FCTRL_BAM;
316
317         /* clear the bits we are changing the status of */
318         fctrl &= ~(IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE);
319
320         if (dev_data->promiscuous) {
321                 fctrl |= (IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE);
322                 vmolr |= (IXGBE_VMOLR_ROPE | IXGBE_VMOLR_MPE);
323         } else {
324                 if (dev_data->all_multicast) {
325                         fctrl |= IXGBE_FCTRL_MPE;
326                         vmolr |= IXGBE_VMOLR_MPE;
327                 } else {
328                         vmolr |= IXGBE_VMOLR_ROMPE;
329                 }
330         }
331
332         if (hw->mac.type != ixgbe_mac_82598EB) {
333                 vmolr |= IXGBE_READ_REG(hw, IXGBE_VMOLR(vfn)) &
334                          ~(IXGBE_VMOLR_MPE | IXGBE_VMOLR_ROMPE |
335                            IXGBE_VMOLR_ROPE);
336                 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vfn), vmolr);
337         }
338
339         IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl);
340
341         ixgbe_vlan_hw_strip_config(dev);
342 }
343
344 static inline void
345 ixgbe_vf_reset_event(struct rte_eth_dev *dev, uint16_t vf)
346 {
347         struct ixgbe_hw *hw =
348                 IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
349         struct ixgbe_vf_info *vfinfo =
350                 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
351         int rar_entry = hw->mac.num_rar_entries - (vf + 1);
352         uint32_t vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
353
354         vmolr |= (IXGBE_VMOLR_ROPE |
355                         IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE);
356         IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
357
358         IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
359
360         /* reset multicast table array for vf */
361         vfinfo[vf].num_vf_mc_hashes = 0;
362
363         /* reset rx mode */
364         set_rx_mode(dev);
365
366         hw->mac.ops.clear_rar(hw, rar_entry);
367 }
368
369 static inline void
370 ixgbe_vf_reset_msg(struct rte_eth_dev *dev, uint16_t vf)
371 {
372         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
373         uint32_t reg;
374         uint32_t reg_offset, vf_shift;
375         const uint8_t VFRE_SHIFT = 5;  /* VFRE 32 bits per slot */
376         const uint8_t VFRE_MASK = (uint8_t)((1U << VFRE_SHIFT) - 1);
377         uint8_t  nb_q_per_pool;
378         int i;
379
380         vf_shift = vf & VFRE_MASK;
381         reg_offset = (vf >> VFRE_SHIFT) > 0 ? 1 : 0;
382
383         /* enable transmit for vf */
384         reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
385         reg |= (reg | (1 << vf_shift));
386         IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg);
387
388         /* enable all queue drop for IOV */
389         nb_q_per_pool = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
390         for (i = vf * nb_q_per_pool; i < (vf + 1) * nb_q_per_pool; i++) {
391                 IXGBE_WRITE_FLUSH(hw);
392                 reg = IXGBE_QDE_ENABLE | IXGBE_QDE_WRITE;
393                 reg |= i << IXGBE_QDE_IDX_SHIFT;
394                 IXGBE_WRITE_REG(hw, IXGBE_QDE, reg);
395         }
396
397         /* enable receive for vf */
398         reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
399         reg |= (reg | (1 << vf_shift));
400         IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg);
401
402         /* Enable counting of spoofed packets in the SSVPC register */
403         reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
404         reg |= (1 << vf_shift);
405         IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
406
407         ixgbe_vf_reset_event(dev, vf);
408 }
409
410 static int
411 ixgbe_enable_vf_mc_promisc(struct rte_eth_dev *dev, uint32_t vf)
412 {
413         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
414         uint32_t vmolr;
415
416         vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
417
418         RTE_LOG(INFO, PMD, "VF %u: enabling multicast promiscuous\n", vf);
419
420         vmolr |= IXGBE_VMOLR_MPE;
421
422         IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
423
424         return 0;
425 }
426
427 static int
428 ixgbe_disable_vf_mc_promisc(struct rte_eth_dev *dev, uint32_t vf)
429 {
430         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
431         uint32_t vmolr;
432
433         vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
434
435         RTE_LOG(INFO, PMD, "VF %u: disabling multicast promiscuous\n", vf);
436
437         vmolr &= ~IXGBE_VMOLR_MPE;
438
439         IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
440
441         return 0;
442 }
443
444 static int
445 ixgbe_vf_reset(struct rte_eth_dev *dev, uint16_t vf, uint32_t *msgbuf)
446 {
447         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
448         struct ixgbe_vf_info *vfinfo =
449                 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
450         unsigned char *vf_mac = vfinfo[vf].vf_mac_addresses;
451         int rar_entry = hw->mac.num_rar_entries - (vf + 1);
452         uint8_t *new_mac = (uint8_t *)(&msgbuf[1]);
453
454         ixgbe_vf_reset_msg(dev, vf);
455
456         hw->mac.ops.set_rar(hw, rar_entry, vf_mac, vf, IXGBE_RAH_AV);
457
458         /* Disable multicast promiscuous at reset */
459         ixgbe_disable_vf_mc_promisc(dev, vf);
460
461         /* reply to reset with ack and vf mac address */
462         msgbuf[0] = IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK;
463         rte_memcpy(new_mac, vf_mac, ETHER_ADDR_LEN);
464         /*
465          * Piggyback the multicast filter type so VF can compute the
466          * correct vectors
467          */
468         msgbuf[3] = hw->mac.mc_filter_type;
469         ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
470
471         return 0;
472 }
473
474 static int
475 ixgbe_vf_set_mac_addr(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
476 {
477         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
478         struct ixgbe_vf_info *vfinfo =
479                 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
480         int rar_entry = hw->mac.num_rar_entries - (vf + 1);
481         uint8_t *new_mac = (uint8_t *)(&msgbuf[1]);
482
483         if (is_valid_assigned_ether_addr((struct ether_addr *)new_mac)) {
484                 rte_memcpy(vfinfo[vf].vf_mac_addresses, new_mac, 6);
485                 return hw->mac.ops.set_rar(hw, rar_entry, new_mac, vf, IXGBE_RAH_AV);
486         }
487         return -1;
488 }
489
490 static int
491 ixgbe_vf_set_multicast(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
492 {
493         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
494         struct ixgbe_vf_info *vfinfo =
495                 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
496         int nb_entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >>
497                 IXGBE_VT_MSGINFO_SHIFT;
498         uint16_t *hash_list = (uint16_t *)&msgbuf[1];
499         uint32_t mta_idx;
500         uint32_t mta_shift;
501         const uint32_t IXGBE_MTA_INDEX_MASK = 0x7F;
502         const uint32_t IXGBE_MTA_BIT_SHIFT = 5;
503         const uint32_t IXGBE_MTA_BIT_MASK = (0x1 << IXGBE_MTA_BIT_SHIFT) - 1;
504         uint32_t reg_val;
505         int i;
506         u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
507
508         /* Disable multicast promiscuous first */
509         ixgbe_disable_vf_mc_promisc(dev, vf);
510
511         /* only so many hash values supported */
512         nb_entries = RTE_MIN(nb_entries, IXGBE_MAX_VF_MC_ENTRIES);
513
514         /* store the mc entries  */
515         vfinfo->num_vf_mc_hashes = (uint16_t)nb_entries;
516         for (i = 0; i < nb_entries; i++) {
517                 vfinfo->vf_mc_hashes[i] = hash_list[i];
518         }
519
520         if (nb_entries == 0) {
521                 vmolr &= ~IXGBE_VMOLR_ROMPE;
522                 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
523                 return 0;
524         }
525
526         for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
527                 mta_idx = (vfinfo->vf_mc_hashes[i] >> IXGBE_MTA_BIT_SHIFT)
528                                 & IXGBE_MTA_INDEX_MASK;
529                 mta_shift = vfinfo->vf_mc_hashes[i] & IXGBE_MTA_BIT_MASK;
530                 reg_val = IXGBE_READ_REG(hw, IXGBE_MTA(mta_idx));
531                 reg_val |= (1 << mta_shift);
532                 IXGBE_WRITE_REG(hw, IXGBE_MTA(mta_idx), reg_val);
533         }
534
535         vmolr |= IXGBE_VMOLR_ROMPE;
536         IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
537
538         return 0;
539 }
540
541 static int
542 ixgbe_vf_set_vlan(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
543 {
544         int add, vid;
545         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
546         struct ixgbe_vf_info *vfinfo =
547                 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
548
549         add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
550                 >> IXGBE_VT_MSGINFO_SHIFT;
551         vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
552
553         if (add)
554                 vfinfo[vf].vlan_count++;
555         else if (vfinfo[vf].vlan_count)
556                 vfinfo[vf].vlan_count--;
557         return hw->mac.ops.set_vfta(hw, vid, vf, (bool)add, false);
558 }
559
560 static int
561 ixgbe_set_vf_lpe(struct rte_eth_dev *dev, __rte_unused uint32_t vf, uint32_t *msgbuf)
562 {
563         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
564         uint32_t new_mtu = msgbuf[1];
565         uint32_t max_frs;
566         int max_frame = new_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
567
568         /* X540 and X550 support jumbo frames in IOV mode */
569         if (hw->mac.type != ixgbe_mac_X540 &&
570                 hw->mac.type != ixgbe_mac_X550 &&
571                 hw->mac.type != ixgbe_mac_X550EM_x &&
572                 hw->mac.type != ixgbe_mac_X550EM_a)
573                 return -1;
574
575         if ((max_frame < ETHER_MIN_LEN) || (max_frame > ETHER_MAX_JUMBO_FRAME_LEN))
576                 return -1;
577
578         max_frs = (IXGBE_READ_REG(hw, IXGBE_MAXFRS) &
579                    IXGBE_MHADD_MFS_MASK) >> IXGBE_MHADD_MFS_SHIFT;
580         if (max_frs < new_mtu) {
581                 max_frs = new_mtu << IXGBE_MHADD_MFS_SHIFT;
582                 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
583         }
584
585         return 0;
586 }
587
588 static int
589 ixgbe_negotiate_vf_api(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
590 {
591         uint32_t api_version = msgbuf[1];
592         struct ixgbe_vf_info *vfinfo =
593                 *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
594
595         switch (api_version) {
596         case ixgbe_mbox_api_10:
597         case ixgbe_mbox_api_11:
598         case ixgbe_mbox_api_12:
599                 vfinfo[vf].api_version = (uint8_t)api_version;
600                 return 0;
601         default:
602                 break;
603         }
604
605         RTE_LOG(ERR, PMD, "Negotiate invalid api version %u from VF %d\n",
606                 api_version, vf);
607
608         return -1;
609 }
610
611 static int
612 ixgbe_get_vf_queues(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
613 {
614         struct ixgbe_vf_info *vfinfo =
615                 *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
616         uint32_t default_q = vf * RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
617         struct rte_eth_conf *eth_conf;
618         struct rte_eth_vmdq_dcb_tx_conf *vmdq_dcb_tx_conf;
619         u8 num_tcs;
620         struct ixgbe_hw *hw;
621         u32 vmvir;
622 #define IXGBE_VMVIR_VLANA_MASK          0xC0000000
623 #define IXGBE_VMVIR_VLAN_VID_MASK       0x00000FFF
624 #define IXGBE_VMVIR_VLAN_UP_MASK        0x0000E000
625 #define VLAN_PRIO_SHIFT                 13
626         u32 vlana;
627         u32 vid;
628         u32 user_priority;
629
630         /* Verify if the PF supports the mbox APIs version or not */
631         switch (vfinfo[vf].api_version) {
632         case ixgbe_mbox_api_20:
633         case ixgbe_mbox_api_11:
634         case ixgbe_mbox_api_12:
635                 break;
636         default:
637                 return -1;
638         }
639
640         /* Notify VF of Rx and Tx queue number */
641         msgbuf[IXGBE_VF_RX_QUEUES] = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
642         msgbuf[IXGBE_VF_TX_QUEUES] = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
643
644         /* Notify VF of default queue */
645         msgbuf[IXGBE_VF_DEF_QUEUE] = default_q;
646
647         /* Notify VF of number of DCB traffic classes */
648         eth_conf = &dev->data->dev_conf;
649         switch (eth_conf->txmode.mq_mode) {
650         case ETH_MQ_TX_NONE:
651         case ETH_MQ_TX_DCB:
652                 RTE_LOG(ERR, PMD, "PF must work with virtualization for VF %u"
653                         ", but its tx mode = %d\n", vf,
654                         eth_conf->txmode.mq_mode);
655                 return -1;
656
657         case ETH_MQ_TX_VMDQ_DCB:
658                 vmdq_dcb_tx_conf = &eth_conf->tx_adv_conf.vmdq_dcb_tx_conf;
659                 switch (vmdq_dcb_tx_conf->nb_queue_pools) {
660                 case ETH_16_POOLS:
661                         num_tcs = ETH_8_TCS;
662                         break;
663                 case ETH_32_POOLS:
664                         num_tcs = ETH_4_TCS;
665                         break;
666                 default:
667                         return -1;
668                 }
669                 break;
670
671         /* ETH_MQ_TX_VMDQ_ONLY,  DCB not enabled */
672         case ETH_MQ_TX_VMDQ_ONLY:
673                 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
674                 vmvir = IXGBE_READ_REG(hw, IXGBE_VMVIR(vf));
675                 vlana = vmvir & IXGBE_VMVIR_VLANA_MASK;
676                 vid = vmvir & IXGBE_VMVIR_VLAN_VID_MASK;
677                 user_priority =
678                         (vmvir & IXGBE_VMVIR_VLAN_UP_MASK) >> VLAN_PRIO_SHIFT;
679                 if ((vlana == IXGBE_VMVIR_VLANA_DEFAULT) &&
680                         ((vid !=  0) || (user_priority != 0)))
681                         num_tcs = 1;
682                 else
683                         num_tcs = 0;
684                 break;
685
686         default:
687                 RTE_LOG(ERR, PMD, "PF work with invalid mode = %d\n",
688                         eth_conf->txmode.mq_mode);
689                 return -1;
690         }
691         msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;
692
693         return 0;
694 }
695
696 static int
697 ixgbe_set_vf_mc_promisc(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
698 {
699         struct ixgbe_vf_info *vfinfo =
700                 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
701         bool enable = !!msgbuf[1];      /* msgbuf contains the flag to enable */
702
703         switch (vfinfo[vf].api_version) {
704         case ixgbe_mbox_api_12:
705                 break;
706         default:
707                 return -1;
708         }
709
710         if (enable)
711                 return ixgbe_enable_vf_mc_promisc(dev, vf);
712         else
713                 return ixgbe_disable_vf_mc_promisc(dev, vf);
714 }
715
716 static int
717 ixgbe_rcv_msg_from_vf(struct rte_eth_dev *dev, uint16_t vf)
718 {
719         uint16_t mbx_size = IXGBE_VFMAILBOX_SIZE;
720         uint16_t msg_size = IXGBE_VF_MSG_SIZE_DEFAULT;
721         uint32_t msgbuf[IXGBE_VFMAILBOX_SIZE];
722         int32_t retval;
723         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
724         struct ixgbe_vf_info *vfinfo =
725                 *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
726         struct rte_pmd_ixgbe_mb_event_param ret_param;
727
728         retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
729         if (retval) {
730                 PMD_DRV_LOG(ERR, "Error mbx recv msg from VF %d", vf);
731                 return retval;
732         }
733
734         /* do nothing with the message already been processed */
735         if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
736                 return retval;
737
738         /* flush the ack before we write any messages back */
739         IXGBE_WRITE_FLUSH(hw);
740
741         /**
742          * initialise structure to send to user application
743          * will return response from user in retval field
744          */
745         ret_param.retval = RTE_PMD_IXGBE_MB_EVENT_PROCEED;
746         ret_param.vfid = vf;
747         ret_param.msg_type = msgbuf[0] & 0xFFFF;
748         ret_param.msg = (void *)msgbuf;
749
750         /* perform VF reset */
751         if (msgbuf[0] == IXGBE_VF_RESET) {
752                 int ret = ixgbe_vf_reset(dev, vf, msgbuf);
753
754                 vfinfo[vf].clear_to_send = true;
755
756                 /* notify application about VF reset */
757                 _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_VF_MBOX,
758                                               &ret_param);
759                 return ret;
760         }
761
762         /**
763          * ask user application if we allowed to perform those functions
764          * if we get ret_param.retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED
765          * then business as usual,
766          * if 0, do nothing and send ACK to VF
767          * if ret_param.retval > 1, do nothing and send NAK to VF
768          */
769         _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_VF_MBOX,
770                                       &ret_param);
771
772         retval = ret_param.retval;
773
774         /* check & process VF to PF mailbox message */
775         switch ((msgbuf[0] & 0xFFFF)) {
776         case IXGBE_VF_SET_MAC_ADDR:
777                 if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
778                         retval = ixgbe_vf_set_mac_addr(dev, vf, msgbuf);
779                 break;
780         case IXGBE_VF_SET_MULTICAST:
781                 if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
782                         retval = ixgbe_vf_set_multicast(dev, vf, msgbuf);
783                 break;
784         case IXGBE_VF_SET_LPE:
785                 if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
786                         retval = ixgbe_set_vf_lpe(dev, vf, msgbuf);
787                 break;
788         case IXGBE_VF_SET_VLAN:
789                 if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
790                         retval = ixgbe_vf_set_vlan(dev, vf, msgbuf);
791                 break;
792         case IXGBE_VF_API_NEGOTIATE:
793                 retval = ixgbe_negotiate_vf_api(dev, vf, msgbuf);
794                 break;
795         case IXGBE_VF_GET_QUEUES:
796                 retval = ixgbe_get_vf_queues(dev, vf, msgbuf);
797                 msg_size = IXGBE_VF_GET_QUEUE_MSG_SIZE;
798                 break;
799         case IXGBE_VF_UPDATE_XCAST_MODE:
800                 if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
801                         retval = ixgbe_set_vf_mc_promisc(dev, vf, msgbuf);
802                 break;
803         default:
804                 PMD_DRV_LOG(DEBUG, "Unhandled Msg %8.8x", (unsigned)msgbuf[0]);
805                 retval = IXGBE_ERR_MBX;
806                 break;
807         }
808
809         /* response the VF according to the message process result */
810         if (retval)
811                 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
812         else
813                 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
814
815         msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
816
817         ixgbe_write_mbx(hw, msgbuf, msg_size, vf);
818
819         return retval;
820 }
821
822 static inline void
823 ixgbe_rcv_ack_from_vf(struct rte_eth_dev *dev, uint16_t vf)
824 {
825         uint32_t msg = IXGBE_VT_MSGTYPE_NACK;
826         struct ixgbe_hw *hw =
827                 IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
828         struct ixgbe_vf_info *vfinfo =
829                 *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
830
831         if (!vfinfo[vf].clear_to_send)
832                 ixgbe_write_mbx(hw, &msg, 1, vf);
833 }
834
835 void ixgbe_pf_mbx_process(struct rte_eth_dev *eth_dev)
836 {
837         uint16_t vf;
838         struct ixgbe_hw *hw =
839                 IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
840
841         for (vf = 0; vf < dev_num_vf(eth_dev); vf++) {
842                 /* check & process vf function level reset */
843                 if (!ixgbe_check_for_rst(hw, vf))
844                         ixgbe_vf_reset_event(eth_dev, vf);
845
846                 /* check & process vf mailbox messages */
847                 if (!ixgbe_check_for_msg(hw, vf))
848                         ixgbe_rcv_msg_from_vf(eth_dev, vf);
849
850                 /* check & process acks from vf */
851                 if (!ixgbe_check_for_ack(hw, vf))
852                         ixgbe_rcv_ack_from_vf(eth_dev, vf);
853         }
854 }