1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2015 Intel Corporation
3 */
4
5 #include <sys/queue.h>
6 #include <stdio.h>
7 #include <errno.h>
8 #include <stdint.h>
9 #include <string.h>
10 #include <unistd.h>
11 #include <stdarg.h>
12 #include <fcntl.h>
13 #include <inttypes.h>
14 #include <rte_byteorder.h>
15 #include <rte_common.h>
16 #include <rte_cycles.h>
17
18 #include <rte_interrupts.h>
19 #include <rte_log.h>
20 #include <rte_debug.h>
21 #include <rte_pci.h>
22 #include <rte_bus_pci.h>
23 #include <rte_branch_prediction.h>
24 #include <rte_memory.h>
25 #include <rte_memzone.h>
26 #include <rte_eal.h>
27 #include <rte_alarm.h>
28 #include <rte_ether.h>
29 #include <rte_ethdev_driver.h>
30 #include <rte_ethdev_pci.h>
31 #include <rte_string_fns.h>
32 #include <rte_malloc.h>
33 #include <rte_dev.h>
34
35 #include "base/vmxnet3_defs.h"
36
37 #include "vmxnet3_ring.h"
38 #include "vmxnet3_logs.h"
39 #include "vmxnet3_ethdev.h"
40
41 #define PROCESS_SYS_EVENTS 0
42
43 #define VMXNET3_TX_MAX_SEG UINT8_MAX
44
45 #define VMXNET3_TX_OFFLOAD_CAP \
46 (DEV_TX_OFFLOAD_VLAN_INSERT | \
47 DEV_TX_OFFLOAD_TCP_CKSUM | \
48 DEV_TX_OFFLOAD_UDP_CKSUM | \
49 DEV_TX_OFFLOAD_TCP_TSO | \
50 DEV_TX_OFFLOAD_MULTI_SEGS)
51
52 #define VMXNET3_RX_OFFLOAD_CAP \
53 (DEV_RX_OFFLOAD_VLAN_STRIP | \
54 DEV_RX_OFFLOAD_VLAN_FILTER | \
55 DEV_RX_OFFLOAD_SCATTER | \
56 DEV_RX_OFFLOAD_UDP_CKSUM | \
57 DEV_RX_OFFLOAD_TCP_CKSUM | \
58 DEV_RX_OFFLOAD_TCP_LRO | \
59 DEV_RX_OFFLOAD_JUMBO_FRAME | \
60 DEV_RX_OFFLOAD_RSS_HASH)
61
62 int vmxnet3_segs_dynfield_offset = -1;
63
64 static int eth_vmxnet3_dev_init(struct rte_eth_dev *eth_dev);
65 static int eth_vmxnet3_dev_uninit(struct rte_eth_dev *eth_dev);
66 static int vmxnet3_dev_configure(struct rte_eth_dev *dev);
67 static int vmxnet3_dev_start(struct rte_eth_dev *dev);
68 static int vmxnet3_dev_stop(struct rte_eth_dev *dev);
69 static int vmxnet3_dev_close(struct rte_eth_dev *dev);
70 static void vmxnet3_dev_set_rxmode(struct vmxnet3_hw *hw, uint32_t feature, int set);
71 static int vmxnet3_dev_promiscuous_enable(struct rte_eth_dev *dev);
72 static int vmxnet3_dev_promiscuous_disable(struct rte_eth_dev *dev);
73 static int vmxnet3_dev_allmulticast_enable(struct rte_eth_dev *dev);
74 static int vmxnet3_dev_allmulticast_disable(struct rte_eth_dev *dev);
75 static int __vmxnet3_dev_link_update(struct rte_eth_dev *dev,
76 int wait_to_complete);
77 static int vmxnet3_dev_link_update(struct rte_eth_dev *dev,
78 int wait_to_complete);
79 static void vmxnet3_hw_stats_save(struct vmxnet3_hw *hw);
80 static int vmxnet3_dev_stats_get(struct rte_eth_dev *dev,
81 struct rte_eth_stats *stats);
82 static int vmxnet3_dev_stats_reset(struct rte_eth_dev *dev);
83 static int vmxnet3_dev_xstats_get_names(struct rte_eth_dev *dev,
84 struct rte_eth_xstat_name *xstats,
85 unsigned int n);
86 static int vmxnet3_dev_xstats_get(struct rte_eth_dev *dev,
87 struct rte_eth_xstat *xstats, unsigned int n);
88 static int vmxnet3_dev_info_get(struct rte_eth_dev *dev,
89 struct rte_eth_dev_info *dev_info);
90 static const uint32_t *
91 vmxnet3_dev_supported_ptypes_get(struct rte_eth_dev *dev);
92 static int vmxnet3_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
93 static int vmxnet3_dev_vlan_filter_set(struct rte_eth_dev *dev,
94 uint16_t vid, int on);
95 static int vmxnet3_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask);
96 static int vmxnet3_mac_addr_set(struct rte_eth_dev *dev,
97 struct rte_ether_addr *mac_addr);
98 static void vmxnet3_interrupt_handler(void *param);
99
100 /*
101 * The set of PCI devices this driver supports
102 */
103 #define VMWARE_PCI_VENDOR_ID 0x15AD
104 #define VMWARE_DEV_ID_VMXNET3 0x07B0
105 static const struct rte_pci_id pci_id_vmxnet3_map[] = {
106 { RTE_PCI_DEVICE(VMWARE_PCI_VENDOR_ID, VMWARE_DEV_ID_VMXNET3) },
107 { .vendor_id = 0, /* sentinel */ },
108 };
109
110 static const struct eth_dev_ops vmxnet3_eth_dev_ops = {
111 .dev_configure = vmxnet3_dev_configure,
112 .dev_start = vmxnet3_dev_start,
113 .dev_stop = vmxnet3_dev_stop,
114 .dev_close = vmxnet3_dev_close,
115 .promiscuous_enable = vmxnet3_dev_promiscuous_enable,
116 .promiscuous_disable = vmxnet3_dev_promiscuous_disable,
117 .allmulticast_enable = vmxnet3_dev_allmulticast_enable,
118 .allmulticast_disable = vmxnet3_dev_allmulticast_disable,
119 .link_update = vmxnet3_dev_link_update,
120 .stats_get = vmxnet3_dev_stats_get,
121 .xstats_get_names = vmxnet3_dev_xstats_get_names,
122 .xstats_get = vmxnet3_dev_xstats_get,
123 .stats_reset = vmxnet3_dev_stats_reset,
124 .mac_addr_set = vmxnet3_mac_addr_set,
125 .dev_infos_get = vmxnet3_dev_info_get,
126 .dev_supported_ptypes_get = vmxnet3_dev_supported_ptypes_get,
127 .mtu_set = vmxnet3_dev_mtu_set,
128 .vlan_filter_set = vmxnet3_dev_vlan_filter_set,
129 .vlan_offload_set = vmxnet3_dev_vlan_offload_set,
130 .rx_queue_setup = vmxnet3_dev_rx_queue_setup,
131 .rx_queue_release = vmxnet3_dev_rx_queue_release,
132 .tx_queue_setup = vmxnet3_dev_tx_queue_setup,
133 .tx_queue_release = vmxnet3_dev_tx_queue_release,
134 };
135
136 struct vmxnet3_xstats_name_off {
137 char name[RTE_ETH_XSTATS_NAME_SIZE];
138 unsigned int offset;
139 };
140
141 /* tx_qX_ is prepended to the name string here */
142 static const struct vmxnet3_xstats_name_off vmxnet3_txq_stat_strings[] = {
143 {"drop_total", offsetof(struct vmxnet3_txq_stats, drop_total)},
144 {"drop_too_many_segs", offsetof(struct vmxnet3_txq_stats, drop_too_many_segs)},
145 {"drop_tso", offsetof(struct vmxnet3_txq_stats, drop_tso)},
146 {"tx_ring_full", offsetof(struct vmxnet3_txq_stats, tx_ring_full)},
147 };
148
149 /* rx_qX_ is prepended to the name string here */
150 static const struct vmxnet3_xstats_name_off vmxnet3_rxq_stat_strings[] = {
151 {"drop_total", offsetof(struct vmxnet3_rxq_stats, drop_total)},
152 {"drop_err", offsetof(struct vmxnet3_rxq_stats, drop_err)},
153 {"drop_fcs", offsetof(struct vmxnet3_rxq_stats, drop_fcs)},
154 {"rx_buf_alloc_failure", offsetof(struct vmxnet3_rxq_stats, rx_buf_alloc_failure)},
155 };
156
157 static const struct rte_memzone *
gpa_zone_reserve(struct rte_eth_dev * dev,uint32_t size,const char * post_string,int socket_id,uint16_t align,bool reuse)158 gpa_zone_reserve(struct rte_eth_dev *dev, uint32_t size,
159 const char *post_string, int socket_id,
160 uint16_t align, bool reuse)
161 {
162 char z_name[RTE_MEMZONE_NAMESIZE];
163 const struct rte_memzone *mz;
164
165 snprintf(z_name, sizeof(z_name), "eth_p%d_%s",
166 dev->data->port_id, post_string);
167
168 mz = rte_memzone_lookup(z_name);
169 if (!reuse) {
170 if (mz)
171 rte_memzone_free(mz);
172 return rte_memzone_reserve_aligned(z_name, size, socket_id,
173 RTE_MEMZONE_IOVA_CONTIG, align);
174 }
175
176 if (mz)
177 return mz;
178
179 return rte_memzone_reserve_aligned(z_name, size, socket_id,
180 RTE_MEMZONE_IOVA_CONTIG, align);
181 }
182
183 /*
184 * This function is based on vmxnet3_disable_intr()
185 */
186 static void
vmxnet3_disable_intr(struct vmxnet3_hw * hw)187 vmxnet3_disable_intr(struct vmxnet3_hw *hw)
188 {
189 int i;
190
191 PMD_INIT_FUNC_TRACE();
192
193 hw->shared->devRead.intrConf.intrCtrl |= VMXNET3_IC_DISABLE_ALL;
194 for (i = 0; i < hw->num_intrs; i++)
195 VMXNET3_WRITE_BAR0_REG(hw, VMXNET3_REG_IMR + i * 8, 1);
196 }
197
198 static void
vmxnet3_enable_intr(struct vmxnet3_hw * hw)199 vmxnet3_enable_intr(struct vmxnet3_hw *hw)
200 {
201 int i;
202
203 PMD_INIT_FUNC_TRACE();
204
205 hw->shared->devRead.intrConf.intrCtrl &= ~VMXNET3_IC_DISABLE_ALL;
206 for (i = 0; i < hw->num_intrs; i++)
207 VMXNET3_WRITE_BAR0_REG(hw, VMXNET3_REG_IMR + i * 8, 0);
208 }
209
210 /*
211 * Gets tx data ring descriptor size.
212 */
213 static uint16_t
eth_vmxnet3_txdata_get(struct vmxnet3_hw * hw)214 eth_vmxnet3_txdata_get(struct vmxnet3_hw *hw)
215 {
216 uint16 txdata_desc_size;
217
218 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
219 VMXNET3_CMD_GET_TXDATA_DESC_SIZE);
220 txdata_desc_size = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
221
222 return (txdata_desc_size < VMXNET3_TXDATA_DESC_MIN_SIZE ||
223 txdata_desc_size > VMXNET3_TXDATA_DESC_MAX_SIZE ||
224 txdata_desc_size & VMXNET3_TXDATA_DESC_SIZE_MASK) ?
225 sizeof(struct Vmxnet3_TxDataDesc) : txdata_desc_size;
226 }
227
228 /*
229 * It returns 0 on success.
230 */
231 static int
eth_vmxnet3_dev_init(struct rte_eth_dev * eth_dev)232 eth_vmxnet3_dev_init(struct rte_eth_dev *eth_dev)
233 {
234 struct rte_pci_device *pci_dev;
235 struct vmxnet3_hw *hw = eth_dev->data->dev_private;
236 uint32_t mac_hi, mac_lo, ver;
237 struct rte_eth_link link;
238 static const struct rte_mbuf_dynfield vmxnet3_segs_dynfield_desc = {
239 .name = VMXNET3_SEGS_DYNFIELD_NAME,
240 .size = sizeof(vmxnet3_segs_dynfield_t),
241 .align = __alignof__(vmxnet3_segs_dynfield_t),
242 };
243
244 PMD_INIT_FUNC_TRACE();
245
246 eth_dev->dev_ops = &vmxnet3_eth_dev_ops;
247 eth_dev->rx_pkt_burst = &vmxnet3_recv_pkts;
248 eth_dev->tx_pkt_burst = &vmxnet3_xmit_pkts;
249 eth_dev->tx_pkt_prepare = vmxnet3_prep_pkts;
250 pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
251
252 /* extra mbuf field is required to guess MSS */
253 vmxnet3_segs_dynfield_offset =
254 rte_mbuf_dynfield_register(&vmxnet3_segs_dynfield_desc);
255 if (vmxnet3_segs_dynfield_offset < 0) {
256 PMD_INIT_LOG(ERR, "Cannot register mbuf field.");
257 return -rte_errno;
258 }
259
260 /*
261 * for secondary processes, we don't initialize any further as primary
262 * has already done this work.
263 */
264 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
265 return 0;
266
267 rte_eth_copy_pci_info(eth_dev, pci_dev);
268 eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
269
270 /* Vendor and Device ID need to be set before init of shared code */
271 hw->device_id = pci_dev->id.device_id;
272 hw->vendor_id = pci_dev->id.vendor_id;
273 hw->hw_addr0 = (void *)pci_dev->mem_resource[0].addr;
274 hw->hw_addr1 = (void *)pci_dev->mem_resource[1].addr;
275
276 hw->num_rx_queues = 1;
277 hw->num_tx_queues = 1;
278 hw->bufs_per_pkt = 1;
279
280 /* Check h/w version compatibility with driver. */
281 ver = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_VRRS);
282 PMD_INIT_LOG(DEBUG, "Hardware version : %d", ver);
283
284 if (ver & (1 << VMXNET3_REV_4)) {
285 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_VRRS,
286 1 << VMXNET3_REV_4);
287 hw->version = VMXNET3_REV_4 + 1;
288 } else if (ver & (1 << VMXNET3_REV_3)) {
289 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_VRRS,
290 1 << VMXNET3_REV_3);
291 hw->version = VMXNET3_REV_3 + 1;
292 } else if (ver & (1 << VMXNET3_REV_2)) {
293 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_VRRS,
294 1 << VMXNET3_REV_2);
295 hw->version = VMXNET3_REV_2 + 1;
296 } else if (ver & (1 << VMXNET3_REV_1)) {
297 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_VRRS,
298 1 << VMXNET3_REV_1);
299 hw->version = VMXNET3_REV_1 + 1;
300 } else {
301 PMD_INIT_LOG(ERR, "Incompatible hardware version: %d", ver);
302 return -EIO;
303 }
304
305 PMD_INIT_LOG(DEBUG, "Using device version %d\n", hw->version);
306
307 /* Check UPT version compatibility with driver. */
308 ver = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_UVRS);
309 PMD_INIT_LOG(DEBUG, "UPT hardware version : %d", ver);
310 if (ver & 0x1)
311 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_UVRS, 1);
312 else {
313 PMD_INIT_LOG(ERR, "Incompatible UPT version.");
314 return -EIO;
315 }
316
317 /* Getting MAC Address */
318 mac_lo = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_MACL);
319 mac_hi = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_MACH);
320 memcpy(hw->perm_addr, &mac_lo, 4);
321 memcpy(hw->perm_addr + 4, &mac_hi, 2);
322
323 /* Allocate memory for storing MAC addresses */
324 eth_dev->data->mac_addrs = rte_zmalloc("vmxnet3", RTE_ETHER_ADDR_LEN *
325 VMXNET3_MAX_MAC_ADDRS, 0);
326 if (eth_dev->data->mac_addrs == NULL) {
327 PMD_INIT_LOG(ERR,
328 "Failed to allocate %d bytes needed to store MAC addresses",
329 RTE_ETHER_ADDR_LEN * VMXNET3_MAX_MAC_ADDRS);
330 return -ENOMEM;
331 }
332 /* Copy the permanent MAC address */
333 rte_ether_addr_copy((struct rte_ether_addr *)hw->perm_addr,
334 ð_dev->data->mac_addrs[0]);
335
336 PMD_INIT_LOG(DEBUG, "MAC Address : %02x:%02x:%02x:%02x:%02x:%02x",
337 hw->perm_addr[0], hw->perm_addr[1], hw->perm_addr[2],
338 hw->perm_addr[3], hw->perm_addr[4], hw->perm_addr[5]);
339
340 /* Put device in Quiesce Mode */
341 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_QUIESCE_DEV);
342
343 /* allow untagged pkts */
344 VMXNET3_SET_VFTABLE_ENTRY(hw->shadow_vfta, 0);
345
346 hw->txdata_desc_size = VMXNET3_VERSION_GE_3(hw) ?
347 eth_vmxnet3_txdata_get(hw) : sizeof(struct Vmxnet3_TxDataDesc);
348
349 hw->rxdata_desc_size = VMXNET3_VERSION_GE_3(hw) ?
350 VMXNET3_DEF_RXDATA_DESC_SIZE : 0;
351 RTE_ASSERT((hw->rxdata_desc_size & ~VMXNET3_RXDATA_DESC_SIZE_MASK) ==
352 hw->rxdata_desc_size);
353
354 /* clear shadow stats */
355 memset(hw->saved_tx_stats, 0, sizeof(hw->saved_tx_stats));
356 memset(hw->saved_rx_stats, 0, sizeof(hw->saved_rx_stats));
357
358 /* clear snapshot stats */
359 memset(hw->snapshot_tx_stats, 0, sizeof(hw->snapshot_tx_stats));
360 memset(hw->snapshot_rx_stats, 0, sizeof(hw->snapshot_rx_stats));
361
362 /* set the initial link status */
363 memset(&link, 0, sizeof(link));
364 link.link_duplex = ETH_LINK_FULL_DUPLEX;
365 link.link_speed = ETH_SPEED_NUM_10G;
366 link.link_autoneg = ETH_LINK_FIXED;
367 rte_eth_linkstatus_set(eth_dev, &link);
368
369 return 0;
370 }
371
372 static int
eth_vmxnet3_dev_uninit(struct rte_eth_dev * eth_dev)373 eth_vmxnet3_dev_uninit(struct rte_eth_dev *eth_dev)
374 {
375 struct vmxnet3_hw *hw = eth_dev->data->dev_private;
376
377 PMD_INIT_FUNC_TRACE();
378
379 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
380 return 0;
381
382 if (hw->adapter_stopped == 0) {
383 PMD_INIT_LOG(DEBUG, "Device has not been closed.");
384 return -EBUSY;
385 }
386
387 return 0;
388 }
389
eth_vmxnet3_pci_probe(struct rte_pci_driver * pci_drv __rte_unused,struct rte_pci_device * pci_dev)390 static int eth_vmxnet3_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
391 struct rte_pci_device *pci_dev)
392 {
393 return rte_eth_dev_pci_generic_probe(pci_dev,
394 sizeof(struct vmxnet3_hw), eth_vmxnet3_dev_init);
395 }
396
eth_vmxnet3_pci_remove(struct rte_pci_device * pci_dev)397 static int eth_vmxnet3_pci_remove(struct rte_pci_device *pci_dev)
398 {
399 return rte_eth_dev_pci_generic_remove(pci_dev, eth_vmxnet3_dev_uninit);
400 }
401
402 static struct rte_pci_driver rte_vmxnet3_pmd = {
403 .id_table = pci_id_vmxnet3_map,
404 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
405 .probe = eth_vmxnet3_pci_probe,
406 .remove = eth_vmxnet3_pci_remove,
407 };
408
409 static int
vmxnet3_dev_configure(struct rte_eth_dev * dev)410 vmxnet3_dev_configure(struct rte_eth_dev *dev)
411 {
412 const struct rte_memzone *mz;
413 struct vmxnet3_hw *hw = dev->data->dev_private;
414 size_t size;
415
416 PMD_INIT_FUNC_TRACE();
417
418 if (dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG)
419 dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH;
420
421 if (dev->data->nb_tx_queues > VMXNET3_MAX_TX_QUEUES ||
422 dev->data->nb_rx_queues > VMXNET3_MAX_RX_QUEUES) {
423 PMD_INIT_LOG(ERR, "ERROR: Number of queues not supported");
424 return -EINVAL;
425 }
426
427 if (!rte_is_power_of_2(dev->data->nb_rx_queues)) {
428 PMD_INIT_LOG(ERR, "ERROR: Number of rx queues not power of 2");
429 return -EINVAL;
430 }
431
432 size = dev->data->nb_rx_queues * sizeof(struct Vmxnet3_TxQueueDesc) +
433 dev->data->nb_tx_queues * sizeof(struct Vmxnet3_RxQueueDesc);
434
435 if (size > UINT16_MAX)
436 return -EINVAL;
437
438 hw->num_rx_queues = (uint8_t)dev->data->nb_rx_queues;
439 hw->num_tx_queues = (uint8_t)dev->data->nb_tx_queues;
440
441 /*
442 * Allocate a memzone for Vmxnet3_DriverShared - Vmxnet3_DSDevRead
443 * on current socket
444 */
445 mz = gpa_zone_reserve(dev, sizeof(struct Vmxnet3_DriverShared),
446 "shared", rte_socket_id(), 8, 1);
447
448 if (mz == NULL) {
449 PMD_INIT_LOG(ERR, "ERROR: Creating shared zone");
450 return -ENOMEM;
451 }
452 memset(mz->addr, 0, mz->len);
453
454 hw->shared = mz->addr;
455 hw->sharedPA = mz->iova;
456
457 /*
458 * Allocate a memzone for Vmxnet3_RxQueueDesc - Vmxnet3_TxQueueDesc
459 * on current socket.
460 *
461 * We cannot reuse this memzone from previous allocation as its size
462 * depends on the number of tx and rx queues, which could be different
463 * from one config to another.
464 */
465 mz = gpa_zone_reserve(dev, size, "queuedesc", rte_socket_id(),
466 VMXNET3_QUEUE_DESC_ALIGN, 0);
467 if (mz == NULL) {
468 PMD_INIT_LOG(ERR, "ERROR: Creating queue descriptors zone");
469 return -ENOMEM;
470 }
471 memset(mz->addr, 0, mz->len);
472
473 hw->tqd_start = (Vmxnet3_TxQueueDesc *)mz->addr;
474 hw->rqd_start = (Vmxnet3_RxQueueDesc *)(hw->tqd_start + hw->num_tx_queues);
475
476 hw->queueDescPA = mz->iova;
477 hw->queue_desc_len = (uint16_t)size;
478
479 if (dev->data->dev_conf.rxmode.mq_mode == ETH_MQ_RX_RSS) {
480 /* Allocate memory structure for UPT1_RSSConf and configure */
481 mz = gpa_zone_reserve(dev, sizeof(struct VMXNET3_RSSConf),
482 "rss_conf", rte_socket_id(),
483 RTE_CACHE_LINE_SIZE, 1);
484 if (mz == NULL) {
485 PMD_INIT_LOG(ERR,
486 "ERROR: Creating rss_conf structure zone");
487 return -ENOMEM;
488 }
489 memset(mz->addr, 0, mz->len);
490
491 hw->rss_conf = mz->addr;
492 hw->rss_confPA = mz->iova;
493 }
494
495 return 0;
496 }
497
498 static void
vmxnet3_write_mac(struct vmxnet3_hw * hw,const uint8_t * addr)499 vmxnet3_write_mac(struct vmxnet3_hw *hw, const uint8_t *addr)
500 {
501 uint32_t val;
502
503 PMD_INIT_LOG(DEBUG,
504 "Writing MAC Address : %02x:%02x:%02x:%02x:%02x:%02x",
505 addr[0], addr[1], addr[2],
506 addr[3], addr[4], addr[5]);
507
508 memcpy(&val, addr, 4);
509 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_MACL, val);
510
511 memcpy(&val, addr + 4, 2);
512 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_MACH, val);
513 }
514
515 static int
vmxnet3_dev_setup_memreg(struct rte_eth_dev * dev)516 vmxnet3_dev_setup_memreg(struct rte_eth_dev *dev)
517 {
518 struct vmxnet3_hw *hw = dev->data->dev_private;
519 Vmxnet3_DriverShared *shared = hw->shared;
520 Vmxnet3_CmdInfo *cmdInfo;
521 struct rte_mempool *mp[VMXNET3_MAX_RX_QUEUES];
522 uint8_t index[VMXNET3_MAX_RX_QUEUES + VMXNET3_MAX_TX_QUEUES];
523 uint32_t num, i, j, size;
524
525 if (hw->memRegsPA == 0) {
526 const struct rte_memzone *mz;
527
528 size = sizeof(Vmxnet3_MemRegs) +
529 (VMXNET3_MAX_RX_QUEUES + VMXNET3_MAX_TX_QUEUES) *
530 sizeof(Vmxnet3_MemoryRegion);
531
532 mz = gpa_zone_reserve(dev, size, "memRegs", rte_socket_id(), 8,
533 1);
534 if (mz == NULL) {
535 PMD_INIT_LOG(ERR, "ERROR: Creating memRegs zone");
536 return -ENOMEM;
537 }
538 memset(mz->addr, 0, mz->len);
539 hw->memRegs = mz->addr;
540 hw->memRegsPA = mz->iova;
541 }
542
543 num = hw->num_rx_queues;
544
545 for (i = 0; i < num; i++) {
546 vmxnet3_rx_queue_t *rxq = dev->data->rx_queues[i];
547
548 mp[i] = rxq->mp;
549 index[i] = 1 << i;
550 }
551
552 /*
553 * The same mempool could be used by multiple queues. In such a case,
554 * remove duplicate mempool entries. Only one entry is kept with
555 * bitmask indicating queues that are using this mempool.
556 */
557 for (i = 1; i < num; i++) {
558 for (j = 0; j < i; j++) {
559 if (mp[i] == mp[j]) {
560 mp[i] = NULL;
561 index[j] |= 1 << i;
562 break;
563 }
564 }
565 }
566
567 j = 0;
568 for (i = 0; i < num; i++) {
569 if (mp[i] == NULL)
570 continue;
571
572 Vmxnet3_MemoryRegion *mr = &hw->memRegs->memRegs[j];
573
574 mr->startPA =
575 (uintptr_t)STAILQ_FIRST(&mp[i]->mem_list)->iova;
576 mr->length = STAILQ_FIRST(&mp[i]->mem_list)->len <= INT32_MAX ?
577 STAILQ_FIRST(&mp[i]->mem_list)->len : INT32_MAX;
578 mr->txQueueBits = index[i];
579 mr->rxQueueBits = index[i];
580
581 PMD_INIT_LOG(INFO,
582 "index: %u startPA: %" PRIu64 " length: %u, "
583 "rxBits: %x",
584 j, mr->startPA, mr->length, mr->rxQueueBits);
585 j++;
586 }
587 hw->memRegs->numRegs = j;
588 PMD_INIT_LOG(INFO, "numRegs: %u", j);
589
590 size = sizeof(Vmxnet3_MemRegs) +
591 (j - 1) * sizeof(Vmxnet3_MemoryRegion);
592
593 cmdInfo = &shared->cu.cmdInfo;
594 cmdInfo->varConf.confVer = 1;
595 cmdInfo->varConf.confLen = size;
596 cmdInfo->varConf.confPA = hw->memRegsPA;
597
598 return 0;
599 }
600
601 static int
vmxnet3_setup_driver_shared(struct rte_eth_dev * dev)602 vmxnet3_setup_driver_shared(struct rte_eth_dev *dev)
603 {
604 struct rte_eth_conf port_conf = dev->data->dev_conf;
605 struct vmxnet3_hw *hw = dev->data->dev_private;
606 uint32_t mtu = dev->data->mtu;
607 Vmxnet3_DriverShared *shared = hw->shared;
608 Vmxnet3_DSDevRead *devRead = &shared->devRead;
609 uint64_t rx_offloads = dev->data->dev_conf.rxmode.offloads;
610 uint32_t i;
611 int ret;
612
613 hw->mtu = mtu;
614
615 shared->magic = VMXNET3_REV1_MAGIC;
616 devRead->misc.driverInfo.version = VMXNET3_DRIVER_VERSION_NUM;
617
618 /* Setting up Guest OS information */
619 devRead->misc.driverInfo.gos.gosBits = sizeof(void *) == 4 ?
620 VMXNET3_GOS_BITS_32 : VMXNET3_GOS_BITS_64;
621 devRead->misc.driverInfo.gos.gosType = VMXNET3_GOS_TYPE_LINUX;
622 devRead->misc.driverInfo.vmxnet3RevSpt = 1;
623 devRead->misc.driverInfo.uptVerSpt = 1;
624
625 devRead->misc.mtu = rte_le_to_cpu_32(mtu);
626 devRead->misc.queueDescPA = hw->queueDescPA;
627 devRead->misc.queueDescLen = hw->queue_desc_len;
628 devRead->misc.numTxQueues = hw->num_tx_queues;
629 devRead->misc.numRxQueues = hw->num_rx_queues;
630
631 /*
632 * Set number of interrupts to 1
633 * PMD by default disables all the interrupts but this is MUST
634 * to activate device. It needs at least one interrupt for
635 * link events to handle
636 */
637 hw->num_intrs = devRead->intrConf.numIntrs = 1;
638 devRead->intrConf.intrCtrl |= VMXNET3_IC_DISABLE_ALL;
639
640 for (i = 0; i < hw->num_tx_queues; i++) {
641 Vmxnet3_TxQueueDesc *tqd = &hw->tqd_start[i];
642 vmxnet3_tx_queue_t *txq = dev->data->tx_queues[i];
643
644 txq->shared = &hw->tqd_start[i];
645
646 tqd->ctrl.txNumDeferred = 0;
647 tqd->ctrl.txThreshold = 1;
648 tqd->conf.txRingBasePA = txq->cmd_ring.basePA;
649 tqd->conf.compRingBasePA = txq->comp_ring.basePA;
650 tqd->conf.dataRingBasePA = txq->data_ring.basePA;
651
652 tqd->conf.txRingSize = txq->cmd_ring.size;
653 tqd->conf.compRingSize = txq->comp_ring.size;
654 tqd->conf.dataRingSize = txq->data_ring.size;
655 tqd->conf.txDataRingDescSize = txq->txdata_desc_size;
656 tqd->conf.intrIdx = txq->comp_ring.intr_idx;
657 tqd->status.stopped = TRUE;
658 tqd->status.error = 0;
659 memset(&tqd->stats, 0, sizeof(tqd->stats));
660 }
661
662 for (i = 0; i < hw->num_rx_queues; i++) {
663 Vmxnet3_RxQueueDesc *rqd = &hw->rqd_start[i];
664 vmxnet3_rx_queue_t *rxq = dev->data->rx_queues[i];
665
666 rxq->shared = &hw->rqd_start[i];
667
668 rqd->conf.rxRingBasePA[0] = rxq->cmd_ring[0].basePA;
669 rqd->conf.rxRingBasePA[1] = rxq->cmd_ring[1].basePA;
670 rqd->conf.compRingBasePA = rxq->comp_ring.basePA;
671
672 rqd->conf.rxRingSize[0] = rxq->cmd_ring[0].size;
673 rqd->conf.rxRingSize[1] = rxq->cmd_ring[1].size;
674 rqd->conf.compRingSize = rxq->comp_ring.size;
675 rqd->conf.intrIdx = rxq->comp_ring.intr_idx;
676 if (VMXNET3_VERSION_GE_3(hw)) {
677 rqd->conf.rxDataRingBasePA = rxq->data_ring.basePA;
678 rqd->conf.rxDataRingDescSize = rxq->data_desc_size;
679 }
680 rqd->status.stopped = TRUE;
681 rqd->status.error = 0;
682 memset(&rqd->stats, 0, sizeof(rqd->stats));
683 }
684
685 /* RxMode set to 0 of VMXNET3_RXM_xxx */
686 devRead->rxFilterConf.rxMode = 0;
687
688 /* Setting up feature flags */
689 if (rx_offloads & DEV_RX_OFFLOAD_CHECKSUM)
690 devRead->misc.uptFeatures |= VMXNET3_F_RXCSUM;
691
692 if (rx_offloads & DEV_RX_OFFLOAD_TCP_LRO) {
693 devRead->misc.uptFeatures |= VMXNET3_F_LRO;
694 devRead->misc.maxNumRxSG = 0;
695 }
696
697 if (port_conf.rxmode.mq_mode == ETH_MQ_RX_RSS) {
698 ret = vmxnet3_rss_configure(dev);
699 if (ret != VMXNET3_SUCCESS)
700 return ret;
701
702 devRead->misc.uptFeatures |= VMXNET3_F_RSS;
703 devRead->rssConfDesc.confVer = 1;
704 devRead->rssConfDesc.confLen = sizeof(struct VMXNET3_RSSConf);
705 devRead->rssConfDesc.confPA = hw->rss_confPA;
706 }
707
708 ret = vmxnet3_dev_vlan_offload_set(dev,
709 ETH_VLAN_STRIP_MASK | ETH_VLAN_FILTER_MASK);
710 if (ret)
711 return ret;
712
713 vmxnet3_write_mac(hw, dev->data->mac_addrs->addr_bytes);
714
715 return VMXNET3_SUCCESS;
716 }
717
718 /*
719 * Configure device link speed and setup link.
720 * Must be called after eth_vmxnet3_dev_init. Other wise it might fail
721 * It returns 0 on success.
722 */
723 static int
vmxnet3_dev_start(struct rte_eth_dev * dev)724 vmxnet3_dev_start(struct rte_eth_dev *dev)
725 {
726 int ret;
727 struct vmxnet3_hw *hw = dev->data->dev_private;
728
729 PMD_INIT_FUNC_TRACE();
730
731 /* Save stats before it is reset by CMD_ACTIVATE */
732 vmxnet3_hw_stats_save(hw);
733
734 ret = vmxnet3_setup_driver_shared(dev);
735 if (ret != VMXNET3_SUCCESS)
736 return ret;
737
738 /* check if lsc interrupt feature is enabled */
739 if (dev->data->dev_conf.intr_conf.lsc) {
740 struct rte_pci_device *pci_dev = RTE_DEV_TO_PCI(dev->device);
741
742 /* Setup interrupt callback */
743 rte_intr_callback_register(&pci_dev->intr_handle,
744 vmxnet3_interrupt_handler, dev);
745
746 if (rte_intr_enable(&pci_dev->intr_handle) < 0) {
747 PMD_INIT_LOG(ERR, "interrupt enable failed");
748 return -EIO;
749 }
750 }
751
752 /* Exchange shared data with device */
753 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAL,
754 VMXNET3_GET_ADDR_LO(hw->sharedPA));
755 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAH,
756 VMXNET3_GET_ADDR_HI(hw->sharedPA));
757
758 /* Activate device by register write */
759 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_ACTIVATE_DEV);
760 ret = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
761
762 if (ret != 0) {
763 PMD_INIT_LOG(ERR, "Device activation: UNSUCCESSFUL");
764 return -EINVAL;
765 }
766
767 /* Setup memory region for rx buffers */
768 ret = vmxnet3_dev_setup_memreg(dev);
769 if (ret == 0) {
770 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
771 VMXNET3_CMD_REGISTER_MEMREGS);
772 ret = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
773 if (ret != 0)
774 PMD_INIT_LOG(DEBUG,
775 "Failed in setup memory region cmd\n");
776 ret = 0;
777 } else {
778 PMD_INIT_LOG(DEBUG, "Failed to setup memory region\n");
779 }
780
781 if (VMXNET3_VERSION_GE_4(hw) &&
782 dev->data->dev_conf.rxmode.mq_mode == ETH_MQ_RX_RSS) {
783 /* Check for additional RSS */
784 ret = vmxnet3_v4_rss_configure(dev);
785 if (ret != VMXNET3_SUCCESS) {
786 PMD_INIT_LOG(ERR, "Failed to configure v4 RSS");
787 return ret;
788 }
789 }
790
791 /* Disable interrupts */
792 vmxnet3_disable_intr(hw);
793
794 /*
795 * Load RX queues with blank mbufs and update next2fill index for device
796 * Update RxMode of the device
797 */
798 ret = vmxnet3_dev_rxtx_init(dev);
799 if (ret != VMXNET3_SUCCESS) {
800 PMD_INIT_LOG(ERR, "Device queue init: UNSUCCESSFUL");
801 return ret;
802 }
803
804 hw->adapter_stopped = FALSE;
805
806 /* Setting proper Rx Mode and issue Rx Mode Update command */
807 vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_UCAST | VMXNET3_RXM_BCAST, 1);
808
809 if (dev->data->dev_conf.intr_conf.lsc) {
810 vmxnet3_enable_intr(hw);
811
812 /*
813 * Update link state from device since this won't be
814 * done upon starting with lsc in use. This is done
815 * only after enabling interrupts to avoid any race
816 * where the link state could change without an
817 * interrupt being fired.
818 */
819 __vmxnet3_dev_link_update(dev, 0);
820 }
821
822 return VMXNET3_SUCCESS;
823 }
824
825 /*
826 * Stop device: disable rx and tx functions to allow for reconfiguring.
827 */
828 static int
vmxnet3_dev_stop(struct rte_eth_dev * dev)829 vmxnet3_dev_stop(struct rte_eth_dev *dev)
830 {
831 struct rte_eth_link link;
832 struct vmxnet3_hw *hw = dev->data->dev_private;
833
834 PMD_INIT_FUNC_TRACE();
835
836 if (hw->adapter_stopped == 1) {
837 PMD_INIT_LOG(DEBUG, "Device already stopped.");
838 return 0;
839 }
840
841 /* disable interrupts */
842 vmxnet3_disable_intr(hw);
843
844 if (dev->data->dev_conf.intr_conf.lsc) {
845 struct rte_pci_device *pci_dev = RTE_DEV_TO_PCI(dev->device);
846
847 rte_intr_disable(&pci_dev->intr_handle);
848
849 rte_intr_callback_unregister(&pci_dev->intr_handle,
850 vmxnet3_interrupt_handler, dev);
851 }
852
853 /* quiesce the device first */
854 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_QUIESCE_DEV);
855 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAL, 0);
856 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAH, 0);
857
858 /* reset the device */
859 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_RESET_DEV);
860 PMD_INIT_LOG(DEBUG, "Device reset.");
861
862 vmxnet3_dev_clear_queues(dev);
863
864 /* Clear recorded link status */
865 memset(&link, 0, sizeof(link));
866 link.link_duplex = ETH_LINK_FULL_DUPLEX;
867 link.link_speed = ETH_SPEED_NUM_10G;
868 link.link_autoneg = ETH_LINK_FIXED;
869 rte_eth_linkstatus_set(dev, &link);
870
871 hw->adapter_stopped = 1;
872 dev->data->dev_started = 0;
873
874 return 0;
875 }
876
877 static void
vmxnet3_free_queues(struct rte_eth_dev * dev)878 vmxnet3_free_queues(struct rte_eth_dev *dev)
879 {
880 int i;
881
882 PMD_INIT_FUNC_TRACE();
883
884 for (i = 0; i < dev->data->nb_rx_queues; i++) {
885 void *rxq = dev->data->rx_queues[i];
886
887 vmxnet3_dev_rx_queue_release(rxq);
888 }
889 dev->data->nb_rx_queues = 0;
890
891 for (i = 0; i < dev->data->nb_tx_queues; i++) {
892 void *txq = dev->data->tx_queues[i];
893
894 vmxnet3_dev_tx_queue_release(txq);
895 }
896 dev->data->nb_tx_queues = 0;
897 }
898
899 /*
900 * Reset and stop device.
901 */
902 static int
vmxnet3_dev_close(struct rte_eth_dev * dev)903 vmxnet3_dev_close(struct rte_eth_dev *dev)
904 {
905 int ret;
906 PMD_INIT_FUNC_TRACE();
907 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
908 return 0;
909
910 ret = vmxnet3_dev_stop(dev);
911 vmxnet3_free_queues(dev);
912
913 return ret;
914 }
915
916 static void
vmxnet3_hw_tx_stats_get(struct vmxnet3_hw * hw,unsigned int q,struct UPT1_TxStats * res)917 vmxnet3_hw_tx_stats_get(struct vmxnet3_hw *hw, unsigned int q,
918 struct UPT1_TxStats *res)
919 {
920 #define VMXNET3_UPDATE_TX_STAT(h, i, f, r) \
921 ((r)->f = (h)->tqd_start[(i)].stats.f + \
922 (h)->saved_tx_stats[(i)].f)
923
924 VMXNET3_UPDATE_TX_STAT(hw, q, ucastPktsTxOK, res);
925 VMXNET3_UPDATE_TX_STAT(hw, q, mcastPktsTxOK, res);
926 VMXNET3_UPDATE_TX_STAT(hw, q, bcastPktsTxOK, res);
927 VMXNET3_UPDATE_TX_STAT(hw, q, ucastBytesTxOK, res);
928 VMXNET3_UPDATE_TX_STAT(hw, q, mcastBytesTxOK, res);
929 VMXNET3_UPDATE_TX_STAT(hw, q, bcastBytesTxOK, res);
930 VMXNET3_UPDATE_TX_STAT(hw, q, pktsTxError, res);
931 VMXNET3_UPDATE_TX_STAT(hw, q, pktsTxDiscard, res);
932
933 #undef VMXNET3_UPDATE_TX_STAT
934 }
935
936 static void
vmxnet3_hw_rx_stats_get(struct vmxnet3_hw * hw,unsigned int q,struct UPT1_RxStats * res)937 vmxnet3_hw_rx_stats_get(struct vmxnet3_hw *hw, unsigned int q,
938 struct UPT1_RxStats *res)
939 {
940 #define VMXNET3_UPDATE_RX_STAT(h, i, f, r) \
941 ((r)->f = (h)->rqd_start[(i)].stats.f + \
942 (h)->saved_rx_stats[(i)].f)
943
944 VMXNET3_UPDATE_RX_STAT(hw, q, ucastPktsRxOK, res);
945 VMXNET3_UPDATE_RX_STAT(hw, q, mcastPktsRxOK, res);
946 VMXNET3_UPDATE_RX_STAT(hw, q, bcastPktsRxOK, res);
947 VMXNET3_UPDATE_RX_STAT(hw, q, ucastBytesRxOK, res);
948 VMXNET3_UPDATE_RX_STAT(hw, q, mcastBytesRxOK, res);
949 VMXNET3_UPDATE_RX_STAT(hw, q, bcastBytesRxOK, res);
950 VMXNET3_UPDATE_RX_STAT(hw, q, pktsRxError, res);
951 VMXNET3_UPDATE_RX_STAT(hw, q, pktsRxOutOfBuf, res);
952
953 #undef VMXNET3_UPDATE_RX_STAT
954 }
955
956 static void
vmxnet3_tx_stats_get(struct vmxnet3_hw * hw,unsigned int q,struct UPT1_TxStats * res)957 vmxnet3_tx_stats_get(struct vmxnet3_hw *hw, unsigned int q,
958 struct UPT1_TxStats *res)
959 {
960 vmxnet3_hw_tx_stats_get(hw, q, res);
961
962 #define VMXNET3_REDUCE_SNAPSHOT_TX_STAT(h, i, f, r) \
963 ((r)->f -= (h)->snapshot_tx_stats[(i)].f)
964
965 VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, ucastPktsTxOK, res);
966 VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, mcastPktsTxOK, res);
967 VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, bcastPktsTxOK, res);
968 VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, ucastBytesTxOK, res);
969 VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, mcastBytesTxOK, res);
970 VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, bcastBytesTxOK, res);
971 VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, pktsTxError, res);
972 VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, pktsTxDiscard, res);
973
974 #undef VMXNET3_REDUCE_SNAPSHOT_TX_STAT
975 }
976
977 static void
vmxnet3_rx_stats_get(struct vmxnet3_hw * hw,unsigned int q,struct UPT1_RxStats * res)978 vmxnet3_rx_stats_get(struct vmxnet3_hw *hw, unsigned int q,
979 struct UPT1_RxStats *res)
980 {
981 vmxnet3_hw_rx_stats_get(hw, q, res);
982
983 #define VMXNET3_REDUCE_SNAPSHOT_RX_STAT(h, i, f, r) \
984 ((r)->f -= (h)->snapshot_rx_stats[(i)].f)
985
986 VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, ucastPktsRxOK, res);
987 VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, mcastPktsRxOK, res);
988 VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, bcastPktsRxOK, res);
989 VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, ucastBytesRxOK, res);
990 VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, mcastBytesRxOK, res);
991 VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, bcastBytesRxOK, res);
992 VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, pktsRxError, res);
993 VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, pktsRxOutOfBuf, res);
994
995 #undef VMXNET3_REDUCE_SNAPSHOT_RX_STAT
996 }
997
998 static void
vmxnet3_hw_stats_save(struct vmxnet3_hw * hw)999 vmxnet3_hw_stats_save(struct vmxnet3_hw *hw)
1000 {
1001 unsigned int i;
1002
1003 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
1004
1005 RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_TX_QUEUES);
1006
1007 for (i = 0; i < hw->num_tx_queues; i++)
1008 vmxnet3_hw_tx_stats_get(hw, i, &hw->saved_tx_stats[i]);
1009 for (i = 0; i < hw->num_rx_queues; i++)
1010 vmxnet3_hw_rx_stats_get(hw, i, &hw->saved_rx_stats[i]);
1011 }
1012
1013 static int
vmxnet3_dev_xstats_get_names(struct rte_eth_dev * dev,struct rte_eth_xstat_name * xstats_names,unsigned int n)1014 vmxnet3_dev_xstats_get_names(struct rte_eth_dev *dev,
1015 struct rte_eth_xstat_name *xstats_names,
1016 unsigned int n)
1017 {
1018 unsigned int i, t, count = 0;
1019 unsigned int nstats =
1020 dev->data->nb_tx_queues * RTE_DIM(vmxnet3_txq_stat_strings) +
1021 dev->data->nb_rx_queues * RTE_DIM(vmxnet3_rxq_stat_strings);
1022
1023 if (!xstats_names || n < nstats)
1024 return nstats;
1025
1026 for (i = 0; i < dev->data->nb_rx_queues; i++) {
1027 if (!dev->data->rx_queues[i])
1028 continue;
1029
1030 for (t = 0; t < RTE_DIM(vmxnet3_rxq_stat_strings); t++) {
1031 snprintf(xstats_names[count].name,
1032 sizeof(xstats_names[count].name),
1033 "rx_q%u_%s", i,
1034 vmxnet3_rxq_stat_strings[t].name);
1035 count++;
1036 }
1037 }
1038
1039 for (i = 0; i < dev->data->nb_tx_queues; i++) {
1040 if (!dev->data->tx_queues[i])
1041 continue;
1042
1043 for (t = 0; t < RTE_DIM(vmxnet3_txq_stat_strings); t++) {
1044 snprintf(xstats_names[count].name,
1045 sizeof(xstats_names[count].name),
1046 "tx_q%u_%s", i,
1047 vmxnet3_txq_stat_strings[t].name);
1048 count++;
1049 }
1050 }
1051
1052 return count;
1053 }
1054
1055 static int
vmxnet3_dev_xstats_get(struct rte_eth_dev * dev,struct rte_eth_xstat * xstats,unsigned int n)1056 vmxnet3_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
1057 unsigned int n)
1058 {
1059 unsigned int i, t, count = 0;
1060 unsigned int nstats =
1061 dev->data->nb_tx_queues * RTE_DIM(vmxnet3_txq_stat_strings) +
1062 dev->data->nb_rx_queues * RTE_DIM(vmxnet3_rxq_stat_strings);
1063
1064 if (n < nstats)
1065 return nstats;
1066
1067 for (i = 0; i < dev->data->nb_rx_queues; i++) {
1068 struct vmxnet3_rx_queue *rxq = dev->data->rx_queues[i];
1069
1070 if (rxq == NULL)
1071 continue;
1072
1073 for (t = 0; t < RTE_DIM(vmxnet3_rxq_stat_strings); t++) {
1074 xstats[count].value = *(uint64_t *)(((char *)&rxq->stats) +
1075 vmxnet3_rxq_stat_strings[t].offset);
1076 xstats[count].id = count;
1077 count++;
1078 }
1079 }
1080
1081 for (i = 0; i < dev->data->nb_tx_queues; i++) {
1082 struct vmxnet3_tx_queue *txq = dev->data->tx_queues[i];
1083
1084 if (txq == NULL)
1085 continue;
1086
1087 for (t = 0; t < RTE_DIM(vmxnet3_txq_stat_strings); t++) {
1088 xstats[count].value = *(uint64_t *)(((char *)&txq->stats) +
1089 vmxnet3_txq_stat_strings[t].offset);
1090 xstats[count].id = count;
1091 count++;
1092 }
1093 }
1094
1095 return count;
1096 }
1097
1098 static int
vmxnet3_dev_stats_get(struct rte_eth_dev * dev,struct rte_eth_stats * stats)1099 vmxnet3_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
1100 {
1101 unsigned int i;
1102 struct vmxnet3_hw *hw = dev->data->dev_private;
1103 struct UPT1_TxStats txStats;
1104 struct UPT1_RxStats rxStats;
1105
1106 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
1107
1108 RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_TX_QUEUES);
1109 for (i = 0; i < hw->num_tx_queues; i++) {
1110 vmxnet3_tx_stats_get(hw, i, &txStats);
1111
1112 stats->q_opackets[i] = txStats.ucastPktsTxOK +
1113 txStats.mcastPktsTxOK +
1114 txStats.bcastPktsTxOK;
1115
1116 stats->q_obytes[i] = txStats.ucastBytesTxOK +
1117 txStats.mcastBytesTxOK +
1118 txStats.bcastBytesTxOK;
1119
1120 stats->opackets += stats->q_opackets[i];
1121 stats->obytes += stats->q_obytes[i];
1122 stats->oerrors += txStats.pktsTxError + txStats.pktsTxDiscard;
1123 }
1124
1125 RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_RX_QUEUES);
1126 for (i = 0; i < hw->num_rx_queues; i++) {
1127 vmxnet3_rx_stats_get(hw, i, &rxStats);
1128
1129 stats->q_ipackets[i] = rxStats.ucastPktsRxOK +
1130 rxStats.mcastPktsRxOK +
1131 rxStats.bcastPktsRxOK;
1132
1133 stats->q_ibytes[i] = rxStats.ucastBytesRxOK +
1134 rxStats.mcastBytesRxOK +
1135 rxStats.bcastBytesRxOK;
1136
1137 stats->ipackets += stats->q_ipackets[i];
1138 stats->ibytes += stats->q_ibytes[i];
1139
1140 stats->q_errors[i] = rxStats.pktsRxError;
1141 stats->ierrors += rxStats.pktsRxError;
1142 stats->imissed += rxStats.pktsRxOutOfBuf;
1143 }
1144
1145 return 0;
1146 }
1147
1148 static int
vmxnet3_dev_stats_reset(struct rte_eth_dev * dev)1149 vmxnet3_dev_stats_reset(struct rte_eth_dev *dev)
1150 {
1151 unsigned int i;
1152 struct vmxnet3_hw *hw = dev->data->dev_private;
1153 struct UPT1_TxStats txStats = {0};
1154 struct UPT1_RxStats rxStats = {0};
1155
1156 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
1157
1158 RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_TX_QUEUES);
1159
1160 for (i = 0; i < hw->num_tx_queues; i++) {
1161 vmxnet3_hw_tx_stats_get(hw, i, &txStats);
1162 memcpy(&hw->snapshot_tx_stats[i], &txStats,
1163 sizeof(hw->snapshot_tx_stats[0]));
1164 }
1165 for (i = 0; i < hw->num_rx_queues; i++) {
1166 vmxnet3_hw_rx_stats_get(hw, i, &rxStats);
1167 memcpy(&hw->snapshot_rx_stats[i], &rxStats,
1168 sizeof(hw->snapshot_rx_stats[0]));
1169 }
1170
1171 return 0;
1172 }
1173
1174 static int
vmxnet3_dev_info_get(struct rte_eth_dev * dev,struct rte_eth_dev_info * dev_info)1175 vmxnet3_dev_info_get(struct rte_eth_dev *dev,
1176 struct rte_eth_dev_info *dev_info)
1177 {
1178 struct vmxnet3_hw *hw = dev->data->dev_private;
1179
1180 dev_info->max_rx_queues = VMXNET3_MAX_RX_QUEUES;
1181 dev_info->max_tx_queues = VMXNET3_MAX_TX_QUEUES;
1182 dev_info->min_rx_bufsize = 1518 + RTE_PKTMBUF_HEADROOM;
1183 dev_info->max_rx_pktlen = 16384; /* includes CRC, cf MAXFRS register */
1184 dev_info->min_mtu = VMXNET3_MIN_MTU;
1185 dev_info->max_mtu = VMXNET3_MAX_MTU;
1186 dev_info->speed_capa = ETH_LINK_SPEED_10G;
1187 dev_info->max_mac_addrs = VMXNET3_MAX_MAC_ADDRS;
1188
1189 dev_info->flow_type_rss_offloads = VMXNET3_RSS_OFFLOAD_ALL;
1190
1191 if (VMXNET3_VERSION_GE_4(hw)) {
1192 dev_info->flow_type_rss_offloads |= VMXNET3_V4_RSS_MASK;
1193 }
1194
1195 dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
1196 .nb_max = VMXNET3_RX_RING_MAX_SIZE,
1197 .nb_min = VMXNET3_DEF_RX_RING_SIZE,
1198 .nb_align = 1,
1199 };
1200
1201 dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
1202 .nb_max = VMXNET3_TX_RING_MAX_SIZE,
1203 .nb_min = VMXNET3_DEF_TX_RING_SIZE,
1204 .nb_align = 1,
1205 .nb_seg_max = VMXNET3_TX_MAX_SEG,
1206 .nb_mtu_seg_max = VMXNET3_MAX_TXD_PER_PKT,
1207 };
1208
1209 dev_info->rx_offload_capa = VMXNET3_RX_OFFLOAD_CAP;
1210 dev_info->rx_queue_offload_capa = 0;
1211 dev_info->tx_offload_capa = VMXNET3_TX_OFFLOAD_CAP;
1212 dev_info->tx_queue_offload_capa = 0;
1213
1214 return 0;
1215 }
1216
1217 static const uint32_t *
vmxnet3_dev_supported_ptypes_get(struct rte_eth_dev * dev)1218 vmxnet3_dev_supported_ptypes_get(struct rte_eth_dev *dev)
1219 {
1220 static const uint32_t ptypes[] = {
1221 RTE_PTYPE_L3_IPV4_EXT,
1222 RTE_PTYPE_L3_IPV4,
1223 RTE_PTYPE_UNKNOWN
1224 };
1225
1226 if (dev->rx_pkt_burst == vmxnet3_recv_pkts)
1227 return ptypes;
1228 return NULL;
1229 }
1230
1231 static int
vmxnet3_dev_mtu_set(struct rte_eth_dev * dev,__rte_unused uint16_t mtu)1232 vmxnet3_dev_mtu_set(struct rte_eth_dev *dev, __rte_unused uint16_t mtu)
1233 {
1234 if (dev->data->dev_started) {
1235 PMD_DRV_LOG(ERR, "Port %d must be stopped to configure MTU",
1236 dev->data->port_id);
1237 return -EBUSY;
1238 }
1239
1240 return 0;
1241 }
1242
1243 static int
vmxnet3_mac_addr_set(struct rte_eth_dev * dev,struct rte_ether_addr * mac_addr)1244 vmxnet3_mac_addr_set(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr)
1245 {
1246 struct vmxnet3_hw *hw = dev->data->dev_private;
1247
1248 rte_ether_addr_copy(mac_addr, (struct rte_ether_addr *)(hw->perm_addr));
1249 vmxnet3_write_mac(hw, mac_addr->addr_bytes);
1250 return 0;
1251 }
1252
1253 /* return 0 means link status changed, -1 means not changed */
1254 static int
__vmxnet3_dev_link_update(struct rte_eth_dev * dev,__rte_unused int wait_to_complete)1255 __vmxnet3_dev_link_update(struct rte_eth_dev *dev,
1256 __rte_unused int wait_to_complete)
1257 {
1258 struct vmxnet3_hw *hw = dev->data->dev_private;
1259 struct rte_eth_link link;
1260 uint32_t ret;
1261
1262 memset(&link, 0, sizeof(link));
1263
1264 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_LINK);
1265 ret = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
1266
1267 if (ret & 0x1)
1268 link.link_status = ETH_LINK_UP;
1269 link.link_duplex = ETH_LINK_FULL_DUPLEX;
1270 link.link_speed = ETH_SPEED_NUM_10G;
1271 link.link_autoneg = ETH_LINK_FIXED;
1272
1273 return rte_eth_linkstatus_set(dev, &link);
1274 }
1275
1276 static int
vmxnet3_dev_link_update(struct rte_eth_dev * dev,int wait_to_complete)1277 vmxnet3_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
1278 {
1279 /* Link status doesn't change for stopped dev */
1280 if (dev->data->dev_started == 0)
1281 return -1;
1282
1283 return __vmxnet3_dev_link_update(dev, wait_to_complete);
1284 }
1285
1286 /* Updating rxmode through Vmxnet3_DriverShared structure in adapter */
1287 static void
vmxnet3_dev_set_rxmode(struct vmxnet3_hw * hw,uint32_t feature,int set)1288 vmxnet3_dev_set_rxmode(struct vmxnet3_hw *hw, uint32_t feature, int set)
1289 {
1290 struct Vmxnet3_RxFilterConf *rxConf = &hw->shared->devRead.rxFilterConf;
1291
1292 if (set)
1293 rxConf->rxMode = rxConf->rxMode | feature;
1294 else
1295 rxConf->rxMode = rxConf->rxMode & (~feature);
1296
1297 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_UPDATE_RX_MODE);
1298 }
1299
1300 /* Promiscuous supported only if Vmxnet3_DriverShared is initialized in adapter */
1301 static int
vmxnet3_dev_promiscuous_enable(struct rte_eth_dev * dev)1302 vmxnet3_dev_promiscuous_enable(struct rte_eth_dev *dev)
1303 {
1304 struct vmxnet3_hw *hw = dev->data->dev_private;
1305 uint32_t *vf_table = hw->shared->devRead.rxFilterConf.vfTable;
1306
1307 memset(vf_table, 0, VMXNET3_VFT_TABLE_SIZE);
1308 vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_PROMISC, 1);
1309
1310 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
1311 VMXNET3_CMD_UPDATE_VLAN_FILTERS);
1312
1313 return 0;
1314 }
1315
1316 /* Promiscuous supported only if Vmxnet3_DriverShared is initialized in adapter */
1317 static int
vmxnet3_dev_promiscuous_disable(struct rte_eth_dev * dev)1318 vmxnet3_dev_promiscuous_disable(struct rte_eth_dev *dev)
1319 {
1320 struct vmxnet3_hw *hw = dev->data->dev_private;
1321 uint32_t *vf_table = hw->shared->devRead.rxFilterConf.vfTable;
1322 uint64_t rx_offloads = dev->data->dev_conf.rxmode.offloads;
1323
1324 if (rx_offloads & DEV_RX_OFFLOAD_VLAN_FILTER)
1325 memcpy(vf_table, hw->shadow_vfta, VMXNET3_VFT_TABLE_SIZE);
1326 else
1327 memset(vf_table, 0xff, VMXNET3_VFT_TABLE_SIZE);
1328 vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_PROMISC, 0);
1329 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
1330 VMXNET3_CMD_UPDATE_VLAN_FILTERS);
1331
1332 return 0;
1333 }
1334
1335 /* Allmulticast supported only if Vmxnet3_DriverShared is initialized in adapter */
1336 static int
vmxnet3_dev_allmulticast_enable(struct rte_eth_dev * dev)1337 vmxnet3_dev_allmulticast_enable(struct rte_eth_dev *dev)
1338 {
1339 struct vmxnet3_hw *hw = dev->data->dev_private;
1340
1341 vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_ALL_MULTI, 1);
1342
1343 return 0;
1344 }
1345
1346 /* Allmulticast supported only if Vmxnet3_DriverShared is initialized in adapter */
1347 static int
vmxnet3_dev_allmulticast_disable(struct rte_eth_dev * dev)1348 vmxnet3_dev_allmulticast_disable(struct rte_eth_dev *dev)
1349 {
1350 struct vmxnet3_hw *hw = dev->data->dev_private;
1351
1352 vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_ALL_MULTI, 0);
1353
1354 return 0;
1355 }
1356
1357 /* Enable/disable filter on vlan */
1358 static int
vmxnet3_dev_vlan_filter_set(struct rte_eth_dev * dev,uint16_t vid,int on)1359 vmxnet3_dev_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vid, int on)
1360 {
1361 struct vmxnet3_hw *hw = dev->data->dev_private;
1362 struct Vmxnet3_RxFilterConf *rxConf = &hw->shared->devRead.rxFilterConf;
1363 uint32_t *vf_table = rxConf->vfTable;
1364
1365 /* save state for restore */
1366 if (on)
1367 VMXNET3_SET_VFTABLE_ENTRY(hw->shadow_vfta, vid);
1368 else
1369 VMXNET3_CLEAR_VFTABLE_ENTRY(hw->shadow_vfta, vid);
1370
1371 /* don't change active filter if in promiscuous mode */
1372 if (rxConf->rxMode & VMXNET3_RXM_PROMISC)
1373 return 0;
1374
1375 /* set in hardware */
1376 if (on)
1377 VMXNET3_SET_VFTABLE_ENTRY(vf_table, vid);
1378 else
1379 VMXNET3_CLEAR_VFTABLE_ENTRY(vf_table, vid);
1380
1381 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
1382 VMXNET3_CMD_UPDATE_VLAN_FILTERS);
1383 return 0;
1384 }
1385
1386 static int
vmxnet3_dev_vlan_offload_set(struct rte_eth_dev * dev,int mask)1387 vmxnet3_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask)
1388 {
1389 struct vmxnet3_hw *hw = dev->data->dev_private;
1390 Vmxnet3_DSDevRead *devRead = &hw->shared->devRead;
1391 uint32_t *vf_table = devRead->rxFilterConf.vfTable;
1392 uint64_t rx_offloads = dev->data->dev_conf.rxmode.offloads;
1393
1394 if (mask & ETH_VLAN_STRIP_MASK) {
1395 if (rx_offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
1396 devRead->misc.uptFeatures |= UPT1_F_RXVLAN;
1397 else
1398 devRead->misc.uptFeatures &= ~UPT1_F_RXVLAN;
1399
1400 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
1401 VMXNET3_CMD_UPDATE_FEATURE);
1402 }
1403
1404 if (mask & ETH_VLAN_FILTER_MASK) {
1405 if (rx_offloads & DEV_RX_OFFLOAD_VLAN_FILTER)
1406 memcpy(vf_table, hw->shadow_vfta, VMXNET3_VFT_TABLE_SIZE);
1407 else
1408 memset(vf_table, 0xff, VMXNET3_VFT_TABLE_SIZE);
1409
1410 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
1411 VMXNET3_CMD_UPDATE_VLAN_FILTERS);
1412 }
1413
1414 return 0;
1415 }
1416
1417 static void
vmxnet3_process_events(struct rte_eth_dev * dev)1418 vmxnet3_process_events(struct rte_eth_dev *dev)
1419 {
1420 struct vmxnet3_hw *hw = dev->data->dev_private;
1421 uint32_t events = hw->shared->ecr;
1422
1423 if (!events)
1424 return;
1425
1426 /*
1427 * ECR bits when written with 1b are cleared. Hence write
1428 * events back to ECR so that the bits which were set will be reset.
1429 */
1430 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_ECR, events);
1431
1432 /* Check if link state has changed */
1433 if (events & VMXNET3_ECR_LINK) {
1434 PMD_DRV_LOG(DEBUG, "Process events: VMXNET3_ECR_LINK event");
1435 if (vmxnet3_dev_link_update(dev, 0) == 0)
1436 rte_eth_dev_callback_process(dev,
1437 RTE_ETH_EVENT_INTR_LSC,
1438 NULL);
1439 }
1440
1441 /* Check if there is an error on xmit/recv queues */
1442 if (events & (VMXNET3_ECR_TQERR | VMXNET3_ECR_RQERR)) {
1443 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
1444 VMXNET3_CMD_GET_QUEUE_STATUS);
1445
1446 if (hw->tqd_start->status.stopped)
1447 PMD_DRV_LOG(ERR, "tq error 0x%x",
1448 hw->tqd_start->status.error);
1449
1450 if (hw->rqd_start->status.stopped)
1451 PMD_DRV_LOG(ERR, "rq error 0x%x",
1452 hw->rqd_start->status.error);
1453
1454 /* Reset the device */
1455 /* Have to reset the device */
1456 }
1457
1458 if (events & VMXNET3_ECR_DIC)
1459 PMD_DRV_LOG(DEBUG, "Device implementation change event.");
1460
1461 if (events & VMXNET3_ECR_DEBUG)
1462 PMD_DRV_LOG(DEBUG, "Debug event generated by device.");
1463 }
1464
1465 static void
vmxnet3_interrupt_handler(void * param)1466 vmxnet3_interrupt_handler(void *param)
1467 {
1468 struct rte_eth_dev *dev = param;
1469 struct rte_pci_device *pci_dev = RTE_DEV_TO_PCI(dev->device);
1470
1471 vmxnet3_process_events(dev);
1472
1473 if (rte_intr_ack(&pci_dev->intr_handle) < 0)
1474 PMD_DRV_LOG(ERR, "interrupt enable failed");
1475 }
1476
1477 RTE_PMD_REGISTER_PCI(net_vmxnet3, rte_vmxnet3_pmd);
1478 RTE_PMD_REGISTER_PCI_TABLE(net_vmxnet3, pci_id_vmxnet3_map);
1479 RTE_PMD_REGISTER_KMOD_DEP(net_vmxnet3, "* igb_uio | uio_pci_generic | vfio-pci");
1480 RTE_LOG_REGISTER(vmxnet3_logtype_init, pmd.net.vmxnet3.init, NOTICE);
1481 RTE_LOG_REGISTER(vmxnet3_logtype_driver, pmd.net.vmxnet3.driver, NOTICE);
1482