1 /******************************************************************************
2
3 Copyright (c) 2001-2013, Intel Corporation
4 All rights reserved.
5
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
8
9 1. Redistributions of source code must retain the above copyright notice,
10 this list of conditions and the following disclaimer.
11
12 2. Redistributions in binary form must reproduce the above copyright
13 notice, this list of conditions and the following disclaimer in the
14 documentation and/or other materials provided with the distribution.
15
16 3. Neither the name of the Intel Corporation nor the names of its
17 contributors may be used to endorse or promote products derived from
18 this software without specific prior written permission.
19
20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 POSSIBILITY OF SUCH DAMAGE.
31
32 ******************************************************************************/
33 /*$FreeBSD$*/
34
35 #ifndef _IGB_H_DEFINED_
36 #define _IGB_H_DEFINED_
37
38 /* Tunables */
39
40 /*
41 * IGB_TXD: Maximum number of Transmit Descriptors
42 *
43 * This value is the number of transmit descriptors allocated by the driver.
44 * Increasing this value allows the driver to queue more transmits. Each
45 * descriptor is 16 bytes.
46 * Since TDLEN should be multiple of 128bytes, the number of transmit
47 * desscriptors should meet the following condition.
48 * (num_tx_desc * sizeof(struct e1000_tx_desc)) % 128 == 0
49 */
50 #define IGB_MIN_TXD 256
51 #define IGB_DEFAULT_TXD 1024
52 #define IGB_MAX_TXD 4096
53
54 /*
55 * IGB_RXD: Maximum number of Receive Descriptors
56 *
57 * This value is the number of receive descriptors allocated by the driver.
58 * Increasing this value allows the driver to buffer more incoming packets.
59 * Each descriptor is 16 bytes. A receive buffer is also allocated for each
60 * descriptor. The maximum MTU size is 16110.
61 * Since TDLEN should be multiple of 128bytes, the number of transmit
62 * desscriptors should meet the following condition.
63 * (num_tx_desc * sizeof(struct e1000_tx_desc)) % 128 == 0
64 */
65 #define IGB_MIN_RXD 256
66 #define IGB_DEFAULT_RXD 1024
67 #define IGB_MAX_RXD 4096
68
69 /*
70 * IGB_TIDV - Transmit Interrupt Delay Value
71 * Valid Range: 0-65535 (0=off)
72 * Default Value: 64
73 * This value delays the generation of transmit interrupts in units of
74 * 1.024 microseconds. Transmit interrupt reduction can improve CPU
75 * efficiency if properly tuned for specific network traffic. If the
76 * system is reporting dropped transmits, this value may be set too high
77 * causing the driver to run out of available transmit descriptors.
78 */
79 #define IGB_TIDV 64
80
81 /*
82 * IGB_TADV - Transmit Absolute Interrupt Delay Value
83 * Valid Range: 0-65535 (0=off)
84 * Default Value: 64
85 * This value, in units of 1.024 microseconds, limits the delay in which a
86 * transmit interrupt is generated. Useful only if IGB_TIDV is non-zero,
87 * this value ensures that an interrupt is generated after the initial
88 * packet is sent on the wire within the set amount of time. Proper tuning,
89 * along with IGB_TIDV, may improve traffic throughput in specific
90 * network conditions.
91 */
92 #define IGB_TADV 64
93
94 /*
95 * IGB_RDTR - Receive Interrupt Delay Timer (Packet Timer)
96 * Valid Range: 0-65535 (0=off)
97 * Default Value: 0
98 * This value delays the generation of receive interrupts in units of 1.024
99 * microseconds. Receive interrupt reduction can improve CPU efficiency if
100 * properly tuned for specific network traffic. Increasing this value adds
101 * extra latency to frame reception and can end up decreasing the throughput
102 * of TCP traffic. If the system is reporting dropped receives, this value
103 * may be set too high, causing the driver to run out of available receive
104 * descriptors.
105 *
106 * CAUTION: When setting IGB_RDTR to a value other than 0, adapters
107 * may hang (stop transmitting) under certain network conditions.
108 * If this occurs a WATCHDOG message is logged in the system
109 * event log. In addition, the controller is automatically reset,
110 * restoring the network connection. To eliminate the potential
111 * for the hang ensure that IGB_RDTR is set to 0.
112 */
113 #define IGB_RDTR 0
114
115 /*
116 * Receive Interrupt Absolute Delay Timer (Not valid for 82542/82543/82544)
117 * Valid Range: 0-65535 (0=off)
118 * Default Value: 64
119 * This value, in units of 1.024 microseconds, limits the delay in which a
120 * receive interrupt is generated. Useful only if IGB_RDTR is non-zero,
121 * this value ensures that an interrupt is generated after the initial
122 * packet is received within the set amount of time. Proper tuning,
123 * along with IGB_RDTR, may improve traffic throughput in specific network
124 * conditions.
125 */
126 #define IGB_RADV 64
127
128 /*
129 * This parameter controls the duration of transmit watchdog timer.
130 */
131 #define IGB_WATCHDOG (10 * hz)
132
133 /*
134 * This parameter controls when the driver calls the routine to reclaim
135 * transmit descriptors. Cleaning earlier seems a win.
136 */
137 #define IGB_TX_CLEANUP_THRESHOLD (adapter->num_tx_desc / 2)
138
139 /*
140 * This parameter controls whether or not autonegotation is enabled.
141 * 0 - Disable autonegotiation
142 * 1 - Enable autonegotiation
143 */
144 #define DO_AUTO_NEG 1
145
146 /*
147 * This parameter control whether or not the driver will wait for
148 * autonegotiation to complete.
149 * 1 - Wait for autonegotiation to complete
150 * 0 - Don't wait for autonegotiation to complete
151 */
152 #define WAIT_FOR_AUTO_NEG_DEFAULT 0
153
154 /* Tunables -- End */
155
156 #define AUTONEG_ADV_DEFAULT (ADVERTISE_10_HALF | ADVERTISE_10_FULL | \
157 ADVERTISE_100_HALF | ADVERTISE_100_FULL | \
158 ADVERTISE_1000_FULL)
159
160 #define AUTO_ALL_MODES 0
161
162 /* PHY master/slave setting */
163 #define IGB_MASTER_SLAVE e1000_ms_hw_default
164
165 /* Support AutoMediaDetect for Marvell M88 PHY in i354 */
166 #define IGB_MEDIA_RESET (1 << 0)
167
168 /*
169 * Micellaneous constants
170 */
171 #define IGB_VENDOR_ID 0x8086
172
173 #define IGB_JUMBO_PBA 0x00000028
174 #define IGB_DEFAULT_PBA 0x00000030
175 #define IGB_SMARTSPEED_DOWNSHIFT 3
176 #define IGB_SMARTSPEED_MAX 15
177 #define IGB_MAX_LOOP 10
178
179 #define IGB_RX_PTHRESH ((hw->mac.type == e1000_i354) ? 12 : \
180 ((hw->mac.type <= e1000_82576) ? 16 : 8))
181 #define IGB_RX_HTHRESH 8
182 #define IGB_RX_WTHRESH ((hw->mac.type == e1000_82576 && \
183 adapter->msix_mem) ? 1 : 4)
184
185 #define IGB_TX_PTHRESH ((hw->mac.type == e1000_i354) ? 20 : 8)
186 #define IGB_TX_HTHRESH 1
187 #define IGB_TX_WTHRESH ((hw->mac.type != e1000_82575 && \
188 adapter->msix_mem) ? 1 : 16)
189
190 #define MAX_NUM_MULTICAST_ADDRESSES 128
191 #define PCI_ANY_ID (~0U)
192 #define ETHER_ALIGN 2
193 #define IGB_TX_BUFFER_SIZE ((uint32_t) 1514)
194 #define IGB_FC_PAUSE_TIME 0x0680
195 #define IGB_EEPROM_APME 0x400;
196 /* Queue minimum free for use */
197 #define IGB_QUEUE_THRESHOLD (adapter->num_tx_desc / 8)
198
199 /*
200 * TDBA/RDBA should be aligned on 16 byte boundary. But TDLEN/RDLEN should be
201 * multiple of 128 bytes. So we align TDBA/RDBA on 128 byte boundary. This will
202 * also optimize cache line size effect. H/W supports up to cache line size 128.
203 */
204 #define IGB_DBA_ALIGN 128
205
206 #define SPEED_MODE_BIT (1<<21) /* On PCI-E MACs only */
207
208 /* PCI Config defines */
209 #define IGB_MSIX_BAR 3
210
211 /* Defines for printing debug information */
212 #define DEBUG_INIT 0
213 #define DEBUG_IOCTL 0
214 #define DEBUG_HW 0
215
216 #define INIT_DEBUGOUT(S) if (DEBUG_INIT) printf(S "\n")
217 #define INIT_DEBUGOUT1(S, A) if (DEBUG_INIT) printf(S "\n", A)
218 #define INIT_DEBUGOUT2(S, A, B) if (DEBUG_INIT) printf(S "\n", A, B)
219 #define IOCTL_DEBUGOUT(S) if (DEBUG_IOCTL) printf(S "\n")
220 #define IOCTL_DEBUGOUT1(S, A) if (DEBUG_IOCTL) printf(S "\n", A)
221 #define IOCTL_DEBUGOUT2(S, A, B) if (DEBUG_IOCTL) printf(S "\n", A, B)
222 #define HW_DEBUGOUT(S) if (DEBUG_HW) printf(S "\n")
223 #define HW_DEBUGOUT1(S, A) if (DEBUG_HW) printf(S "\n", A)
224 #define HW_DEBUGOUT2(S, A, B) if (DEBUG_HW) printf(S "\n", A, B)
225
226 #define IGB_MAX_SCATTER 64
227 #define IGB_VFTA_SIZE 128
228 #define IGB_BR_SIZE 4096 /* ring buf size */
229 #define IGB_TSO_SIZE (65535 + sizeof(struct ether_vlan_header))
230 #define IGB_TSO_SEG_SIZE 4096 /* Max dma segment size */
231 #define IGB_TXPBSIZE 20408
232 #define IGB_HDR_BUF 128
233 #define IGB_PKTTYPE_MASK 0x0000FFF0
234 #define IGB_DMCTLX_DCFLUSH_DIS 0x80000000 /* Disable DMA Coalesce Flush */
235 #define ETH_ZLEN 60
236 #define ETH_ADDR_LEN 6
237
238 /* Offload bits in mbuf flag */
239 #if __FreeBSD_version >= 800000
240 #define CSUM_OFFLOAD (CSUM_IP|CSUM_TCP|CSUM_UDP|CSUM_SCTP)
241 #else
242 #define CSUM_OFFLOAD (CSUM_IP|CSUM_TCP|CSUM_UDP)
243 #endif
244
245 /* Define the starting Interrupt rate per Queue */
246 #define IGB_INTS_PER_SEC 8000
247 #define IGB_DEFAULT_ITR ((1000000/IGB_INTS_PER_SEC) << 2)
248
249 #define IGB_LINK_ITR 2000
250 #define I210_LINK_DELAY 1000
251
252 /* Precision Time Sync (IEEE 1588) defines */
253 #define ETHERTYPE_IEEE1588 0x88F7
254 #define PICOSECS_PER_TICK 20833
255 #define TSYNC_PORT 319 /* UDP port for the protocol */
256
257 /*
258 * Bus dma allocation structure used by
259 * e1000_dma_malloc and e1000_dma_free.
260 */
261 struct igb_dma_alloc {
262 bus_addr_t dma_paddr;
263 caddr_t dma_vaddr;
264 bus_dma_tag_t dma_tag;
265 bus_dmamap_t dma_map;
266 bus_dma_segment_t dma_seg;
267 int dma_nseg;
268 };
269
270
271 /*
272 ** Driver queue struct: this is the interrupt container
273 ** for the associated tx and rx ring.
274 */
275 struct igb_queue {
276 struct adapter *adapter;
277 u32 msix; /* This queue's MSIX vector */
278 u32 eims; /* This queue's EIMS bit */
279 u32 eitr_setting;
280 struct resource *res;
281 void *tag;
282 struct tx_ring *txr;
283 struct rx_ring *rxr;
284 struct task que_task;
285 struct taskqueue *tq;
286 u64 irqs;
287 };
288
289 /*
290 * The transmit ring, one per queue
291 */
292 struct tx_ring {
293 struct adapter *adapter;
294 struct mtx tx_mtx;
295 u32 me;
296 int watchdog_time;
297 union e1000_adv_tx_desc *tx_base;
298 struct igb_tx_buf *tx_buffers;
299 struct igb_dma_alloc txdma;
300 volatile u16 tx_avail;
301 u16 next_avail_desc;
302 u16 next_to_clean;
303 u16 process_limit;
304 u16 num_desc;
305 enum {
306 IGB_QUEUE_IDLE = 1,
307 IGB_QUEUE_WORKING = 2,
308 IGB_QUEUE_HUNG = 4,
309 IGB_QUEUE_DEPLETED = 8,
310 } queue_status;
311 u32 txd_cmd;
312 bus_dma_tag_t txtag;
313 char mtx_name[16];
314 #ifndef IGB_LEGACY_TX
315 struct buf_ring *br;
316 struct task txq_task;
317 #endif
318 u32 bytes; /* used for AIM */
319 u32 packets;
320 /* Soft Stats */
321 unsigned long tso_tx;
322 unsigned long no_tx_map_avail;
323 unsigned long no_tx_dma_setup;
324 u64 no_desc_avail;
325 u64 total_packets;
326 };
327
328 /*
329 * Receive ring: one per queue
330 */
331 struct rx_ring {
332 struct adapter *adapter;
333 u32 me;
334 struct igb_dma_alloc rxdma;
335 union e1000_adv_rx_desc *rx_base;
336 struct lro_ctrl lro;
337 bool lro_enabled;
338 bool hdr_split;
339 struct mtx rx_mtx;
340 char mtx_name[16];
341 u32 next_to_refresh;
342 u32 next_to_check;
343 struct igb_rx_buf *rx_buffers;
344 bus_dma_tag_t htag; /* dma tag for rx head */
345 bus_dma_tag_t ptag; /* dma tag for rx packet */
346 /*
347 * First/last mbuf pointers, for
348 * collecting multisegment RX packets.
349 */
350 struct mbuf *fmp;
351 struct mbuf *lmp;
352
353 u32 bytes;
354 u32 packets;
355 int rdt;
356 int rdh;
357
358 /* Soft stats */
359 u64 rx_split_packets;
360 u64 rx_discarded;
361 u64 rx_packets;
362 u64 rx_bytes;
363 };
364
365 struct adapter {
366 struct ifnet *ifp;
367 struct e1000_hw hw;
368
369 struct e1000_osdep osdep;
370 struct device *dev;
371 struct cdev *led_dev;
372
373 struct resource *pci_mem;
374 struct resource *msix_mem;
375 int memrid;
376
377 /*
378 * Interrupt resources: this set is
379 * either used for legacy, or for Link
380 * when doing MSIX
381 */
382 void *tag;
383 struct resource *res;
384
385 struct ifmedia media;
386 struct callout timer;
387 int msix;
388 int if_flags;
389 int pause_frames;
390
391 struct mtx core_mtx;
392
393 eventhandler_tag vlan_attach;
394 eventhandler_tag vlan_detach;
395
396 u16 num_vlans;
397 u16 num_queues;
398
399 /*
400 ** Shadow VFTA table, this is needed because
401 ** the real vlan filter table gets cleared during
402 ** a soft reset and the driver needs to be able
403 ** to repopulate it.
404 */
405 u32 shadow_vfta[IGB_VFTA_SIZE];
406
407 /* Info about the interface */
408 u32 optics;
409 u32 fc; /* local flow ctrl setting */
410 int advertise; /* link speeds */
411 bool link_active;
412 u16 max_frame_size;
413 u16 num_segs;
414 u16 link_speed;
415 bool link_up;
416 u32 linkvec;
417 u16 link_duplex;
418 u32 dmac;
419 int link_mask;
420
421 /* Flags */
422 u32 flags;
423
424 /* Mbuf cluster size */
425 u32 rx_mbuf_sz;
426
427 /* Support for pluggable optics */
428 bool sfp_probe;
429 struct task link_task; /* Link tasklet */
430 struct task mod_task; /* SFP tasklet */
431 struct task msf_task; /* Multispeed Fiber */
432 struct taskqueue *tq;
433
434 /*
435 ** Queues:
436 ** This is the irq holder, it has
437 ** and RX/TX pair or rings associated
438 ** with it.
439 */
440 struct igb_queue *queues;
441
442 /*
443 * Transmit rings:
444 * Allocated at run time, an array of rings.
445 */
446 struct tx_ring *tx_rings;
447 u32 num_tx_desc;
448
449 /*
450 * Receive rings:
451 * Allocated at run time, an array of rings.
452 */
453 struct rx_ring *rx_rings;
454 u64 que_mask;
455 u32 num_rx_desc;
456
457 /* Multicast array memory */
458 u8 *mta;
459
460 /* Misc stats maintained by the driver */
461 unsigned long dropped_pkts;
462 unsigned long mbuf_defrag_failed;
463 unsigned long mbuf_header_failed;
464 unsigned long mbuf_packet_failed;
465 unsigned long no_tx_dma_setup;
466 unsigned long watchdog_events;
467 unsigned long link_irq;
468 unsigned long rx_overruns;
469 unsigned long device_control;
470 unsigned long rx_control;
471 unsigned long int_mask;
472 unsigned long eint_mask;
473 unsigned long packet_buf_alloc_rx;
474 unsigned long packet_buf_alloc_tx;
475 /* Used in pf and vf */
476 void *stats;
477
478 int enable_aim;
479 int has_manage;
480 int wol;
481 int rx_process_limit;
482 u16 vf_ifp; /* a VF interface */
483 bool in_detach; /* Used only in igb_ioctl */
484
485 };
486
487 /* ******************************************************************************
488 * vendor_info_array
489 *
490 * This array contains the list of Subvendor/Subdevice IDs on which the driver
491 * should load.
492 *
493 * ******************************************************************************/
494 typedef struct _igb_vendor_info_t {
495 unsigned int vendor_id;
496 unsigned int device_id;
497 unsigned int subvendor_id;
498 unsigned int subdevice_id;
499 unsigned int index;
500 } igb_vendor_info_t;
501
502 struct igb_tx_buf {
503 union e1000_adv_tx_desc *eop;
504 struct mbuf *m_head;
505 bus_dmamap_t map;
506 };
507
508 struct igb_rx_buf {
509 struct mbuf *m_head;
510 struct mbuf *m_pack;
511 bus_dmamap_t hmap; /* bus_dma map for header */
512 bus_dmamap_t pmap; /* bus_dma map for packet */
513 };
514
515 /*
516 ** Find the number of unrefreshed RX descriptors
517 */
518 static inline u16
igb_rx_unrefreshed(struct rx_ring * rxr)519 igb_rx_unrefreshed(struct rx_ring *rxr)
520 {
521 struct adapter *adapter = rxr->adapter;
522
523 if (rxr->next_to_check > rxr->next_to_refresh)
524 return (rxr->next_to_check - rxr->next_to_refresh - 1);
525 else
526 return ((adapter->num_rx_desc + rxr->next_to_check) -
527 rxr->next_to_refresh - 1);
528 }
529
530 #define IGB_CORE_LOCK_INIT(_sc, _name) \
531 mtx_init(&(_sc)->core_mtx, _name, "IGB Core Lock", MTX_DEF)
532 #define IGB_CORE_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->core_mtx)
533 #define IGB_CORE_LOCK(_sc) mtx_lock(&(_sc)->core_mtx)
534 #define IGB_CORE_UNLOCK(_sc) mtx_unlock(&(_sc)->core_mtx)
535 #define IGB_CORE_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->core_mtx, MA_OWNED)
536
537 #define IGB_TX_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->tx_mtx)
538 #define IGB_TX_LOCK(_sc) mtx_lock(&(_sc)->tx_mtx)
539 #define IGB_TX_UNLOCK(_sc) mtx_unlock(&(_sc)->tx_mtx)
540 #define IGB_TX_TRYLOCK(_sc) mtx_trylock(&(_sc)->tx_mtx)
541 #define IGB_TX_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->tx_mtx, MA_OWNED)
542
543 #define IGB_RX_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->rx_mtx)
544 #define IGB_RX_LOCK(_sc) mtx_lock(&(_sc)->rx_mtx)
545 #define IGB_RX_UNLOCK(_sc) mtx_unlock(&(_sc)->rx_mtx)
546 #define IGB_RX_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->rx_mtx, MA_OWNED)
547
548 #define UPDATE_VF_REG(reg, last, cur) \
549 { \
550 u32 new = E1000_READ_REG(hw, reg); \
551 if (new < last) \
552 cur += 0x100000000LL; \
553 last = new; \
554 cur &= 0xFFFFFFFF00000000LL; \
555 cur |= new; \
556 }
557
558 #if __FreeBSD_version >= 800000 && __FreeBSD_version < 800504
559 static __inline int
drbr_needs_enqueue(struct ifnet * ifp,struct buf_ring * br)560 drbr_needs_enqueue(struct ifnet *ifp, struct buf_ring *br)
561 {
562 #ifdef ALTQ
563 if (ALTQ_IS_ENABLED(&ifp->if_snd))
564 return (1);
565 #endif
566 return (!buf_ring_empty(br));
567 }
568 #endif
569
570 #endif /* _IGB_H_DEFINED_ */
571
572
573