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27#ifndef _VMXNET3_INT_H
28#define _VMXNET3_INT_H
29
30#include <linux/bitops.h>
31#include <linux/ethtool.h>
32#include <linux/delay.h>
33#include <linux/netdevice.h>
34#include <linux/pci.h>
35#include <linux/compiler.h>
36#include <linux/slab.h>
37#include <linux/spinlock.h>
38#include <linux/ioport.h>
39#include <linux/highmem.h>
40#include <linux/timer.h>
41#include <linux/skbuff.h>
42#include <linux/interrupt.h>
43#include <linux/workqueue.h>
44#include <linux/uaccess.h>
45#include <asm/dma.h>
46#include <asm/page.h>
47
48#include <linux/tcp.h>
49#include <linux/udp.h>
50#include <linux/ip.h>
51#include <linux/ipv6.h>
52#include <linux/in.h>
53#include <linux/etherdevice.h>
54#include <asm/checksum.h>
55#include <linux/if_vlan.h>
56#include <linux/if_arp.h>
57#include <linux/inetdevice.h>
58#include <linux/log2.h>
59
60#include "vmxnet3_defs.h"
61
62#ifdef DEBUG
63# define VMXNET3_DRIVER_VERSION_REPORT VMXNET3_DRIVER_VERSION_STRING"-NAPI(debug)"
64#else
65# define VMXNET3_DRIVER_VERSION_REPORT VMXNET3_DRIVER_VERSION_STRING"-NAPI"
66#endif
67
68
69
70
71
72#define VMXNET3_DRIVER_VERSION_STRING "1.6.0.0-k"
73
74
75
76
77#define VMXNET3_DRIVER_VERSION_NUM 0x01060000
78
79#if defined(CONFIG_PCI_MSI)
80
81 #define VMXNET3_RSS
82#endif
83
84#define VMXNET3_REV_6 5
85#define VMXNET3_REV_5 4
86#define VMXNET3_REV_4 3
87#define VMXNET3_REV_3 2
88#define VMXNET3_REV_2 1
89#define VMXNET3_REV_1 0
90
91
92
93
94
95enum {
96 VMNET_CAP_SG = 0x0001,
97 VMNET_CAP_IP4_CSUM = 0x0002,
98
99 VMNET_CAP_HW_CSUM = 0x0004,
100 VMNET_CAP_HIGH_DMA = 0x0008,
101 VMNET_CAP_TOE = 0x0010,
102 VMNET_CAP_TSO = 0x0020,
103
104 VMNET_CAP_SW_TSO = 0x0040,
105 VMNET_CAP_VMXNET_APROM = 0x0080,
106 VMNET_CAP_HW_TX_VLAN = 0x0100,
107 VMNET_CAP_HW_RX_VLAN = 0x0200,
108 VMNET_CAP_SW_VLAN = 0x0400,
109 VMNET_CAP_WAKE_PCKT_RCV = 0x0800,
110 VMNET_CAP_ENABLE_INT_INLINE = 0x1000,
111 VMNET_CAP_ENABLE_HEADER_COPY = 0x2000,
112 VMNET_CAP_TX_CHAIN = 0x4000,
113
114 VMNET_CAP_RX_CHAIN = 0x8000,
115 VMNET_CAP_LPD = 0x10000,
116 VMNET_CAP_BPF = 0x20000,
117 VMNET_CAP_SG_SPAN_PAGES = 0x40000,
118
119 VMNET_CAP_IP6_CSUM = 0x80000,
120 VMNET_CAP_TSO6 = 0x100000,
121 VMNET_CAP_TSO256k = 0x200000,
122
123 VMNET_CAP_UPT = 0x400000
124};
125
126
127
128
129#define MAX_ETHERNET_CARDS 10
130#define MAX_PCI_PASSTHRU_DEVICE 6
131
132struct vmxnet3_cmd_ring {
133 union Vmxnet3_GenericDesc *base;
134 u32 size;
135 u32 next2fill;
136 u32 next2comp;
137 u8 gen;
138 dma_addr_t basePA;
139};
140
141static inline void
142vmxnet3_cmd_ring_adv_next2fill(struct vmxnet3_cmd_ring *ring)
143{
144 ring->next2fill++;
145 if (unlikely(ring->next2fill == ring->size)) {
146 ring->next2fill = 0;
147 VMXNET3_FLIP_RING_GEN(ring->gen);
148 }
149}
150
151static inline void
152vmxnet3_cmd_ring_adv_next2comp(struct vmxnet3_cmd_ring *ring)
153{
154 VMXNET3_INC_RING_IDX_ONLY(ring->next2comp, ring->size);
155}
156
157static inline int
158vmxnet3_cmd_ring_desc_avail(struct vmxnet3_cmd_ring *ring)
159{
160 return (ring->next2comp > ring->next2fill ? 0 : ring->size) +
161 ring->next2comp - ring->next2fill - 1;
162}
163
164struct vmxnet3_comp_ring {
165 union Vmxnet3_GenericDesc *base;
166 u32 size;
167 u32 next2proc;
168 u8 gen;
169 u8 intr_idx;
170 dma_addr_t basePA;
171};
172
173static inline void
174vmxnet3_comp_ring_adv_next2proc(struct vmxnet3_comp_ring *ring)
175{
176 ring->next2proc++;
177 if (unlikely(ring->next2proc == ring->size)) {
178 ring->next2proc = 0;
179 VMXNET3_FLIP_RING_GEN(ring->gen);
180 }
181}
182
183struct vmxnet3_tx_data_ring {
184 struct Vmxnet3_TxDataDesc *base;
185 u32 size;
186 dma_addr_t basePA;
187};
188
189enum vmxnet3_buf_map_type {
190 VMXNET3_MAP_INVALID = 0,
191 VMXNET3_MAP_NONE,
192 VMXNET3_MAP_SINGLE,
193 VMXNET3_MAP_PAGE,
194};
195
196struct vmxnet3_tx_buf_info {
197 u32 map_type;
198 u16 len;
199 u16 sop_idx;
200 dma_addr_t dma_addr;
201 struct sk_buff *skb;
202};
203
204struct vmxnet3_tq_driver_stats {
205 u64 drop_total;
206
207
208
209 u64 drop_too_many_frags;
210 u64 drop_oversized_hdr;
211 u64 drop_hdr_inspect_err;
212 u64 drop_tso;
213
214 u64 tx_ring_full;
215 u64 linearized;
216 u64 copy_skb_header;
217 u64 oversized_hdr;
218};
219
220struct vmxnet3_tx_ctx {
221 bool ipv4;
222 bool ipv6;
223 u16 mss;
224 u32 l4_offset;
225
226
227
228
229
230 u32 l4_hdr_size;
231
232
233
234 u32 copy_size;
235 union Vmxnet3_GenericDesc *sop_txd;
236 union Vmxnet3_GenericDesc *eop_txd;
237};
238
239struct vmxnet3_tx_queue {
240 char name[IFNAMSIZ+8];
241 struct vmxnet3_adapter *adapter;
242 spinlock_t tx_lock;
243 struct vmxnet3_cmd_ring tx_ring;
244 struct vmxnet3_tx_buf_info *buf_info;
245 struct vmxnet3_tx_data_ring data_ring;
246 struct vmxnet3_comp_ring comp_ring;
247 struct Vmxnet3_TxQueueCtrl *shared;
248 struct vmxnet3_tq_driver_stats stats;
249 bool stopped;
250 int num_stop;
251
252 int qid;
253 u16 txdata_desc_size;
254} __attribute__((__aligned__(SMP_CACHE_BYTES)));
255
256enum vmxnet3_rx_buf_type {
257 VMXNET3_RX_BUF_NONE = 0,
258 VMXNET3_RX_BUF_SKB = 1,
259 VMXNET3_RX_BUF_PAGE = 2
260};
261
262struct vmxnet3_rx_buf_info {
263 enum vmxnet3_rx_buf_type buf_type;
264 u16 len;
265 union {
266 struct sk_buff *skb;
267 struct page *page;
268 };
269 dma_addr_t dma_addr;
270};
271
272struct vmxnet3_rx_ctx {
273 struct sk_buff *skb;
274 u32 sop_idx;
275};
276
277struct vmxnet3_rq_driver_stats {
278 u64 drop_total;
279 u64 drop_err;
280 u64 drop_fcs;
281 u64 rx_buf_alloc_failure;
282};
283
284struct vmxnet3_rx_data_ring {
285 Vmxnet3_RxDataDesc *base;
286 dma_addr_t basePA;
287 u16 desc_size;
288};
289
290struct vmxnet3_rx_queue {
291 char name[IFNAMSIZ + 8];
292 struct vmxnet3_adapter *adapter;
293 struct napi_struct napi;
294 struct vmxnet3_cmd_ring rx_ring[2];
295 struct vmxnet3_rx_data_ring data_ring;
296 struct vmxnet3_comp_ring comp_ring;
297 struct vmxnet3_rx_ctx rx_ctx;
298 u32 qid;
299 u32 qid2;
300 u32 dataRingQid;
301 struct vmxnet3_rx_buf_info *buf_info[2];
302 struct Vmxnet3_RxQueueCtrl *shared;
303 struct vmxnet3_rq_driver_stats stats;
304} __attribute__((__aligned__(SMP_CACHE_BYTES)));
305
306#define VMXNET3_DEVICE_MAX_TX_QUEUES 32
307#define VMXNET3_DEVICE_MAX_RX_QUEUES 32
308
309#define VMXNET3_DEVICE_DEFAULT_TX_QUEUES 8
310#define VMXNET3_DEVICE_DEFAULT_RX_QUEUES 8
311
312
313#define VMXNET3_RSS_IND_TABLE_SIZE (VMXNET3_DEVICE_MAX_RX_QUEUES * 4)
314
315#define VMXNET3_LINUX_MAX_MSIX_VECT (VMXNET3_DEVICE_MAX_TX_QUEUES + \
316 VMXNET3_DEVICE_MAX_RX_QUEUES + 1)
317#define VMXNET3_LINUX_MIN_MSIX_VECT 3
318
319
320struct vmxnet3_intr {
321 enum vmxnet3_intr_mask_mode mask_mode;
322 enum vmxnet3_intr_type type;
323 u8 num_intrs;
324 u8 event_intr_idx;
325 u8 mod_levels[VMXNET3_LINUX_MAX_MSIX_VECT];
326 char event_msi_vector_name[IFNAMSIZ+17];
327#ifdef CONFIG_PCI_MSI
328 struct msix_entry msix_entries[VMXNET3_LINUX_MAX_MSIX_VECT];
329#endif
330};
331
332
333#define VMXNET3_INTR_BUDDYSHARE 0
334#define VMXNET3_INTR_TXSHARE 1
335#define VMXNET3_INTR_DONTSHARE 2
336
337
338#define VMXNET3_STATE_BIT_RESETTING 0
339#define VMXNET3_STATE_BIT_QUIESCED 1
340struct vmxnet3_adapter {
341 struct vmxnet3_tx_queue tx_queue[VMXNET3_DEVICE_MAX_TX_QUEUES];
342 struct vmxnet3_rx_queue rx_queue[VMXNET3_DEVICE_MAX_RX_QUEUES];
343 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
344 struct vmxnet3_intr intr;
345 spinlock_t cmd_lock;
346 struct Vmxnet3_DriverShared *shared;
347 struct Vmxnet3_PMConf *pm_conf;
348 struct Vmxnet3_TxQueueDesc *tqd_start;
349 struct Vmxnet3_RxQueueDesc *rqd_start;
350 struct net_device *netdev;
351 struct pci_dev *pdev;
352
353 u8 __iomem *hw_addr0;
354 u8 __iomem *hw_addr1;
355 u8 version;
356
357#ifdef VMXNET3_RSS
358 struct UPT1_RSSConf *rss_conf;
359 bool rss;
360#endif
361 u32 num_rx_queues;
362 u32 num_tx_queues;
363
364
365 unsigned skb_buf_size;
366 int rx_buf_per_pkt;
367 dma_addr_t shared_pa;
368 dma_addr_t queue_desc_pa;
369 dma_addr_t coal_conf_pa;
370
371
372 u32 wol;
373
374
375 u32 link_speed;
376
377 u64 tx_timeout_count;
378
379
380 u32 tx_ring_size;
381 u32 rx_ring_size;
382 u32 rx_ring2_size;
383
384
385 u16 txdata_desc_size;
386 u16 rxdata_desc_size;
387
388 bool rxdataring_enabled;
389 bool default_rss_fields;
390 enum Vmxnet3_RSSField rss_fields;
391
392 struct work_struct work;
393
394 unsigned long state;
395
396 int share_intr;
397
398 struct Vmxnet3_CoalesceScheme *coal_conf;
399 bool default_coal_mode;
400
401 dma_addr_t adapter_pa;
402 dma_addr_t pm_conf_pa;
403 dma_addr_t rss_conf_pa;
404 bool queuesExtEnabled;
405};
406
407#define VMXNET3_WRITE_BAR0_REG(adapter, reg, val) \
408 writel((val), (adapter)->hw_addr0 + (reg))
409#define VMXNET3_READ_BAR0_REG(adapter, reg) \
410 readl((adapter)->hw_addr0 + (reg))
411
412#define VMXNET3_WRITE_BAR1_REG(adapter, reg, val) \
413 writel((val), (adapter)->hw_addr1 + (reg))
414#define VMXNET3_READ_BAR1_REG(adapter, reg) \
415 readl((adapter)->hw_addr1 + (reg))
416
417#define VMXNET3_WAKE_QUEUE_THRESHOLD(tq) (5)
418#define VMXNET3_RX_ALLOC_THRESHOLD(rq, ring_idx, adapter) \
419 ((rq)->rx_ring[ring_idx].size >> 3)
420
421#define VMXNET3_GET_ADDR_LO(dma) ((u32)(dma))
422#define VMXNET3_GET_ADDR_HI(dma) ((u32)(((u64)(dma)) >> 32))
423
424#define VMXNET3_VERSION_GE_2(adapter) \
425 (adapter->version >= VMXNET3_REV_2 + 1)
426#define VMXNET3_VERSION_GE_3(adapter) \
427 (adapter->version >= VMXNET3_REV_3 + 1)
428#define VMXNET3_VERSION_GE_4(adapter) \
429 (adapter->version >= VMXNET3_REV_4 + 1)
430#define VMXNET3_VERSION_GE_5(adapter) \
431 (adapter->version >= VMXNET3_REV_5 + 1)
432#define VMXNET3_VERSION_GE_6(adapter) \
433 (adapter->version >= VMXNET3_REV_6 + 1)
434
435
436#define VMXNET3_DEF_TX_RING_SIZE 512
437#define VMXNET3_DEF_RX_RING_SIZE 1024
438#define VMXNET3_DEF_RX_RING2_SIZE 256
439
440#define VMXNET3_DEF_RXDATA_DESC_SIZE 128
441
442#define VMXNET3_MAX_ETH_HDR_SIZE 22
443#define VMXNET3_MAX_SKB_BUF_SIZE (3*1024)
444
445#define VMXNET3_GET_RING_IDX(adapter, rqID) \
446 ((rqID >= adapter->num_rx_queues && \
447 rqID < 2 * adapter->num_rx_queues) ? 1 : 0) \
448
449#define VMXNET3_RX_DATA_RING(adapter, rqID) \
450 (rqID >= 2 * adapter->num_rx_queues && \
451 rqID < 3 * adapter->num_rx_queues) \
452
453#define VMXNET3_COAL_STATIC_DEFAULT_DEPTH 64
454
455#define VMXNET3_COAL_RBC_RATE(usecs) (1000000 / usecs)
456#define VMXNET3_COAL_RBC_USECS(rbc_rate) (1000000 / rbc_rate)
457#define VMXNET3_RSS_FIELDS_DEFAULT (VMXNET3_RSS_FIELDS_TCPIP4 | \
458 VMXNET3_RSS_FIELDS_TCPIP6)
459
460int
461vmxnet3_quiesce_dev(struct vmxnet3_adapter *adapter);
462
463int
464vmxnet3_activate_dev(struct vmxnet3_adapter *adapter);
465
466void
467vmxnet3_force_close(struct vmxnet3_adapter *adapter);
468
469void
470vmxnet3_reset_dev(struct vmxnet3_adapter *adapter);
471
472void
473vmxnet3_tq_destroy_all(struct vmxnet3_adapter *adapter);
474
475void
476vmxnet3_rq_destroy_all(struct vmxnet3_adapter *adapter);
477
478netdev_features_t
479vmxnet3_fix_features(struct net_device *netdev, netdev_features_t features);
480
481netdev_features_t
482vmxnet3_features_check(struct sk_buff *skb,
483 struct net_device *netdev, netdev_features_t features);
484
485int
486vmxnet3_set_features(struct net_device *netdev, netdev_features_t features);
487
488int
489vmxnet3_create_queues(struct vmxnet3_adapter *adapter,
490 u32 tx_ring_size, u32 rx_ring_size, u32 rx_ring2_size,
491 u16 txdata_desc_size, u16 rxdata_desc_size);
492
493void vmxnet3_set_ethtool_ops(struct net_device *netdev);
494
495void vmxnet3_get_stats64(struct net_device *dev,
496 struct rtnl_link_stats64 *stats);
497
498extern char vmxnet3_driver_name[];
499#endif
500