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ip: fix truesize mismatch in ip fragmentation
[linux/fpc-iii.git] / drivers / net / s2io.h
blob7f3a53dcc6ef303ca91fa506703074195f549d11
1 /************************************************************************
2 * s2io.h: A Linux PCI-X Ethernet driver for Neterion 10GbE Server NIC
3 * Copyright(c) 2002-2007 Neterion Inc.
4
5 * This software may be used and distributed according to the terms of
6 * the GNU General Public License (GPL), incorporated herein by reference.
7 * Drivers based on or derived from this code fall under the GPL and must
8 * retain the authorship, copyright and license notice. This file is not
9 * a complete program and may only be used when the entire operating
10 * system is licensed under the GPL.
11 * See the file COPYING in this distribution for more information.
12 ************************************************************************/
13 #ifndef _S2IO_H
14 #define _S2IO_H
15
16 #define TBD 0
17 #define s2BIT(loc) (0x8000000000000000ULL >> (loc))
18 #define vBIT(val, loc, sz) (((u64)val) << (64-loc-sz))
19 #define INV(d) ((d&0xff)<<24) | (((d>>8)&0xff)<<16) | (((d>>16)&0xff)<<8)| ((d>>24)&0xff)
20
21 #undef SUCCESS
22 #define SUCCESS 0
23 #define FAILURE -1
24 #define S2IO_MINUS_ONE 0xFFFFFFFFFFFFFFFFULL
25 #define S2IO_DISABLE_MAC_ENTRY 0xFFFFFFFFFFFFULL
26 #define S2IO_MAX_PCI_CONFIG_SPACE_REINIT 100
27 #define S2IO_BIT_RESET 1
28 #define S2IO_BIT_SET 2
29 #define CHECKBIT(value, nbit) (value & (1 << nbit))
30
31 /* Maximum time to flicker LED when asked to identify NIC using ethtool */
32 #define MAX_FLICKER_TIME 60000 /* 60 Secs */
33
34 /* Maximum outstanding splits to be configured into xena. */
35 enum {
36 XENA_ONE_SPLIT_TRANSACTION = 0,
37 XENA_TWO_SPLIT_TRANSACTION = 1,
38 XENA_THREE_SPLIT_TRANSACTION = 2,
39 XENA_FOUR_SPLIT_TRANSACTION = 3,
40 XENA_EIGHT_SPLIT_TRANSACTION = 4,
41 XENA_TWELVE_SPLIT_TRANSACTION = 5,
42 XENA_SIXTEEN_SPLIT_TRANSACTION = 6,
43 XENA_THIRTYTWO_SPLIT_TRANSACTION = 7
44 };
45 #define XENA_MAX_OUTSTANDING_SPLITS(n) (n << 4)
46
47 /* OS concerned variables and constants */
48 #define WATCH_DOG_TIMEOUT 15*HZ
49 #define EFILL 0x1234
50 #define ALIGN_SIZE 127
51 #define PCIX_COMMAND_REGISTER 0x62
52
53 /*
54 * Debug related variables.
55 */
56 /* different debug levels. */
57 #define ERR_DBG 0
58 #define INIT_DBG 1
59 #define INFO_DBG 2
60 #define TX_DBG 3
61 #define INTR_DBG 4
62
63 /* Global variable that defines the present debug level of the driver. */
64 static int debug_level = ERR_DBG;
65
66 /* DEBUG message print. */
67 #define DBG_PRINT(dbg_level, fmt, args...) do { \
68 if (dbg_level <= debug_level) \
69 pr_info(fmt, ##args); \
70 } while (0)
71
72 /* Protocol assist features of the NIC */
73 #define L3_CKSUM_OK 0xFFFF
74 #define L4_CKSUM_OK 0xFFFF
75 #define S2IO_JUMBO_SIZE 9600
76
77 /* Driver statistics maintained by driver */
78 struct swStat {
79 unsigned long long single_ecc_errs;
80 unsigned long long double_ecc_errs;
81 unsigned long long parity_err_cnt;
82 unsigned long long serious_err_cnt;
83 unsigned long long soft_reset_cnt;
84 unsigned long long fifo_full_cnt;
85 unsigned long long ring_full_cnt[8];
86 /* LRO statistics */
87 unsigned long long clubbed_frms_cnt;
88 unsigned long long sending_both;
89 unsigned long long outof_sequence_pkts;
90 unsigned long long flush_max_pkts;
91 unsigned long long sum_avg_pkts_aggregated;
92 unsigned long long num_aggregations;
93 /* Other statistics */
94 unsigned long long mem_alloc_fail_cnt;
95 unsigned long long pci_map_fail_cnt;
96 unsigned long long watchdog_timer_cnt;
97 unsigned long long mem_allocated;
98 unsigned long long mem_freed;
99 unsigned long long link_up_cnt;
100 unsigned long long link_down_cnt;
101 unsigned long long link_up_time;
102 unsigned long long link_down_time;
103
104 /* Transfer Code statistics */
105 unsigned long long tx_buf_abort_cnt;
106 unsigned long long tx_desc_abort_cnt;
107 unsigned long long tx_parity_err_cnt;
108 unsigned long long tx_link_loss_cnt;
109 unsigned long long tx_list_proc_err_cnt;
110
111 unsigned long long rx_parity_err_cnt;
112 unsigned long long rx_abort_cnt;
113 unsigned long long rx_parity_abort_cnt;
114 unsigned long long rx_rda_fail_cnt;
115 unsigned long long rx_unkn_prot_cnt;
116 unsigned long long rx_fcs_err_cnt;
117 unsigned long long rx_buf_size_err_cnt;
118 unsigned long long rx_rxd_corrupt_cnt;
119 unsigned long long rx_unkn_err_cnt;
120
121 /* Error/alarm statistics*/
122 unsigned long long tda_err_cnt;
123 unsigned long long pfc_err_cnt;
124 unsigned long long pcc_err_cnt;
125 unsigned long long tti_err_cnt;
126 unsigned long long lso_err_cnt;
127 unsigned long long tpa_err_cnt;
128 unsigned long long sm_err_cnt;
129 unsigned long long mac_tmac_err_cnt;
130 unsigned long long mac_rmac_err_cnt;
131 unsigned long long xgxs_txgxs_err_cnt;
132 unsigned long long xgxs_rxgxs_err_cnt;
133 unsigned long long rc_err_cnt;
134 unsigned long long prc_pcix_err_cnt;
135 unsigned long long rpa_err_cnt;
136 unsigned long long rda_err_cnt;
137 unsigned long long rti_err_cnt;
138 unsigned long long mc_err_cnt;
139
140 };
141
142 /* Xpak releated alarm and warnings */
143 struct xpakStat {
144 u64 alarm_transceiver_temp_high;
145 u64 alarm_transceiver_temp_low;
146 u64 alarm_laser_bias_current_high;
147 u64 alarm_laser_bias_current_low;
148 u64 alarm_laser_output_power_high;
149 u64 alarm_laser_output_power_low;
150 u64 warn_transceiver_temp_high;
151 u64 warn_transceiver_temp_low;
152 u64 warn_laser_bias_current_high;
153 u64 warn_laser_bias_current_low;
154 u64 warn_laser_output_power_high;
155 u64 warn_laser_output_power_low;
156 u64 xpak_regs_stat;
157 u32 xpak_timer_count;
158 };
159
160
161 /* The statistics block of Xena */
162 struct stat_block {
163 /* Tx MAC statistics counters. */
164 __le32 tmac_data_octets;
165 __le32 tmac_frms;
166 __le64 tmac_drop_frms;
167 __le32 tmac_bcst_frms;
168 __le32 tmac_mcst_frms;
169 __le64 tmac_pause_ctrl_frms;
170 __le32 tmac_ucst_frms;
171 __le32 tmac_ttl_octets;
172 __le32 tmac_any_err_frms;
173 __le32 tmac_nucst_frms;
174 __le64 tmac_ttl_less_fb_octets;
175 __le64 tmac_vld_ip_octets;
176 __le32 tmac_drop_ip;
177 __le32 tmac_vld_ip;
178 __le32 tmac_rst_tcp;
179 __le32 tmac_icmp;
180 __le64 tmac_tcp;
181 __le32 reserved_0;
182 __le32 tmac_udp;
183
184 /* Rx MAC Statistics counters. */
185 __le32 rmac_data_octets;
186 __le32 rmac_vld_frms;
187 __le64 rmac_fcs_err_frms;
188 __le64 rmac_drop_frms;
189 __le32 rmac_vld_bcst_frms;
190 __le32 rmac_vld_mcst_frms;
191 __le32 rmac_out_rng_len_err_frms;
192 __le32 rmac_in_rng_len_err_frms;
193 __le64 rmac_long_frms;
194 __le64 rmac_pause_ctrl_frms;
195 __le64 rmac_unsup_ctrl_frms;
196 __le32 rmac_accepted_ucst_frms;
197 __le32 rmac_ttl_octets;
198 __le32 rmac_discarded_frms;
199 __le32 rmac_accepted_nucst_frms;
200 __le32 reserved_1;
201 __le32 rmac_drop_events;
202 __le64 rmac_ttl_less_fb_octets;
203 __le64 rmac_ttl_frms;
204 __le64 reserved_2;
205 __le32 rmac_usized_frms;
206 __le32 reserved_3;
207 __le32 rmac_frag_frms;
208 __le32 rmac_osized_frms;
209 __le32 reserved_4;
210 __le32 rmac_jabber_frms;
211 __le64 rmac_ttl_64_frms;
212 __le64 rmac_ttl_65_127_frms;
213 __le64 reserved_5;
214 __le64 rmac_ttl_128_255_frms;
215 __le64 rmac_ttl_256_511_frms;
216 __le64 reserved_6;
217 __le64 rmac_ttl_512_1023_frms;
218 __le64 rmac_ttl_1024_1518_frms;
219 __le32 rmac_ip;
220 __le32 reserved_7;
221 __le64 rmac_ip_octets;
222 __le32 rmac_drop_ip;
223 __le32 rmac_hdr_err_ip;
224 __le32 reserved_8;
225 __le32 rmac_icmp;
226 __le64 rmac_tcp;
227 __le32 rmac_err_drp_udp;
228 __le32 rmac_udp;
229 __le64 rmac_xgmii_err_sym;
230 __le64 rmac_frms_q0;
231 __le64 rmac_frms_q1;
232 __le64 rmac_frms_q2;
233 __le64 rmac_frms_q3;
234 __le64 rmac_frms_q4;
235 __le64 rmac_frms_q5;
236 __le64 rmac_frms_q6;
237 __le64 rmac_frms_q7;
238 __le16 rmac_full_q3;
239 __le16 rmac_full_q2;
240 __le16 rmac_full_q1;
241 __le16 rmac_full_q0;
242 __le16 rmac_full_q7;
243 __le16 rmac_full_q6;
244 __le16 rmac_full_q5;
245 __le16 rmac_full_q4;
246 __le32 reserved_9;
247 __le32 rmac_pause_cnt;
248 __le64 rmac_xgmii_data_err_cnt;
249 __le64 rmac_xgmii_ctrl_err_cnt;
250 __le32 rmac_err_tcp;
251 __le32 rmac_accepted_ip;
252
253 /* PCI/PCI-X Read transaction statistics. */
254 __le32 new_rd_req_cnt;
255 __le32 rd_req_cnt;
256 __le32 rd_rtry_cnt;
257 __le32 new_rd_req_rtry_cnt;
258
259 /* PCI/PCI-X Write/Read transaction statistics. */
260 __le32 wr_req_cnt;
261 __le32 wr_rtry_rd_ack_cnt;
262 __le32 new_wr_req_rtry_cnt;
263 __le32 new_wr_req_cnt;
264 __le32 wr_disc_cnt;
265 __le32 wr_rtry_cnt;
266
267 /* PCI/PCI-X Write / DMA Transaction statistics. */
268 __le32 txp_wr_cnt;
269 __le32 rd_rtry_wr_ack_cnt;
270 __le32 txd_wr_cnt;
271 __le32 txd_rd_cnt;
272 __le32 rxd_wr_cnt;
273 __le32 rxd_rd_cnt;
274 __le32 rxf_wr_cnt;
275 __le32 txf_rd_cnt;
276
277 /* Tx MAC statistics overflow counters. */
278 __le32 tmac_data_octets_oflow;
279 __le32 tmac_frms_oflow;
280 __le32 tmac_bcst_frms_oflow;
281 __le32 tmac_mcst_frms_oflow;
282 __le32 tmac_ucst_frms_oflow;
283 __le32 tmac_ttl_octets_oflow;
284 __le32 tmac_any_err_frms_oflow;
285 __le32 tmac_nucst_frms_oflow;
286 __le64 tmac_vlan_frms;
287 __le32 tmac_drop_ip_oflow;
288 __le32 tmac_vld_ip_oflow;
289 __le32 tmac_rst_tcp_oflow;
290 __le32 tmac_icmp_oflow;
291 __le32 tpa_unknown_protocol;
292 __le32 tmac_udp_oflow;
293 __le32 reserved_10;
294 __le32 tpa_parse_failure;
295
296 /* Rx MAC Statistics overflow counters. */
297 __le32 rmac_data_octets_oflow;
298 __le32 rmac_vld_frms_oflow;
299 __le32 rmac_vld_bcst_frms_oflow;
300 __le32 rmac_vld_mcst_frms_oflow;
301 __le32 rmac_accepted_ucst_frms_oflow;
302 __le32 rmac_ttl_octets_oflow;
303 __le32 rmac_discarded_frms_oflow;
304 __le32 rmac_accepted_nucst_frms_oflow;
305 __le32 rmac_usized_frms_oflow;
306 __le32 rmac_drop_events_oflow;
307 __le32 rmac_frag_frms_oflow;
308 __le32 rmac_osized_frms_oflow;
309 __le32 rmac_ip_oflow;
310 __le32 rmac_jabber_frms_oflow;
311 __le32 rmac_icmp_oflow;
312 __le32 rmac_drop_ip_oflow;
313 __le32 rmac_err_drp_udp_oflow;
314 __le32 rmac_udp_oflow;
315 __le32 reserved_11;
316 __le32 rmac_pause_cnt_oflow;
317 __le64 rmac_ttl_1519_4095_frms;
318 __le64 rmac_ttl_4096_8191_frms;
319 __le64 rmac_ttl_8192_max_frms;
320 __le64 rmac_ttl_gt_max_frms;
321 __le64 rmac_osized_alt_frms;
322 __le64 rmac_jabber_alt_frms;
323 __le64 rmac_gt_max_alt_frms;
324 __le64 rmac_vlan_frms;
325 __le32 rmac_len_discard;
326 __le32 rmac_fcs_discard;
327 __le32 rmac_pf_discard;
328 __le32 rmac_da_discard;
329 __le32 rmac_red_discard;
330 __le32 rmac_rts_discard;
331 __le32 reserved_12;
332 __le32 rmac_ingm_full_discard;
333 __le32 reserved_13;
334 __le32 rmac_accepted_ip_oflow;
335 __le32 reserved_14;
336 __le32 link_fault_cnt;
337 u8 buffer[20];
338 struct swStat sw_stat;
339 struct xpakStat xpak_stat;
340 };
341
342 /* Default value for 'vlan_strip_tag' configuration parameter */
343 #define NO_STRIP_IN_PROMISC 2
344
345 /*
346 * Structures representing different init time configuration
347 * parameters of the NIC.
348 */
349
350 #define MAX_TX_FIFOS 8
351 #define MAX_RX_RINGS 8
352
353 #define FIFO_DEFAULT_NUM 5
354 #define FIFO_UDP_MAX_NUM 2 /* 0 - even, 1 -odd ports */
355 #define FIFO_OTHER_MAX_NUM 1
356
357
358 #define MAX_RX_DESC_1 (MAX_RX_RINGS * MAX_RX_BLOCKS_PER_RING * 127 )
359 #define MAX_RX_DESC_2 (MAX_RX_RINGS * MAX_RX_BLOCKS_PER_RING * 85 )
360 #define MAX_RX_DESC_3 (MAX_RX_RINGS * MAX_RX_BLOCKS_PER_RING * 85 )
361 #define MAX_TX_DESC (MAX_AVAILABLE_TXDS)
362
363 /* FIFO mappings for all possible number of fifos configured */
364 static int fifo_map[][MAX_TX_FIFOS] = {
365 {0, 0, 0, 0, 0, 0, 0, 0},
366 {0, 0, 0, 0, 1, 1, 1, 1},
367 {0, 0, 0, 1, 1, 1, 2, 2},
368 {0, 0, 1, 1, 2, 2, 3, 3},
369 {0, 0, 1, 1, 2, 2, 3, 4},
370 {0, 0, 1, 1, 2, 3, 4, 5},
371 {0, 0, 1, 2, 3, 4, 5, 6},
372 {0, 1, 2, 3, 4, 5, 6, 7},
373 };
374
375 static u16 fifo_selector[MAX_TX_FIFOS] = {0, 1, 3, 3, 7, 7, 7, 7};
376
377 /* Maintains Per FIFO related information. */
378 struct tx_fifo_config {
379 #define MAX_AVAILABLE_TXDS 8192
380 u32 fifo_len; /* specifies len of FIFO upto 8192, ie no of TxDLs */
381 /* Priority definition */
382 #define TX_FIFO_PRI_0 0 /*Highest */
383 #define TX_FIFO_PRI_1 1
384 #define TX_FIFO_PRI_2 2
385 #define TX_FIFO_PRI_3 3
386 #define TX_FIFO_PRI_4 4
387 #define TX_FIFO_PRI_5 5
388 #define TX_FIFO_PRI_6 6
389 #define TX_FIFO_PRI_7 7 /*lowest */
390 u8 fifo_priority; /* specifies pointer level for FIFO */
391 /* user should not set twos fifos with same pri */
392 u8 f_no_snoop;
393 #define NO_SNOOP_TXD 0x01
394 #define NO_SNOOP_TXD_BUFFER 0x02
395 };
396
397
398 /* Maintains per Ring related information */
399 struct rx_ring_config {
400 u32 num_rxd; /*No of RxDs per Rx Ring */
401 #define RX_RING_PRI_0 0 /* highest */
402 #define RX_RING_PRI_1 1
403 #define RX_RING_PRI_2 2
404 #define RX_RING_PRI_3 3
405 #define RX_RING_PRI_4 4
406 #define RX_RING_PRI_5 5
407 #define RX_RING_PRI_6 6
408 #define RX_RING_PRI_7 7 /* lowest */
409
410 u8 ring_priority; /*Specifies service priority of ring */
411 /* OSM should not set any two rings with same priority */
412 u8 ring_org; /*Organization of ring */
413 #define RING_ORG_BUFF1 0x01
414 #define RX_RING_ORG_BUFF3 0x03
415 #define RX_RING_ORG_BUFF5 0x05
416
417 u8 f_no_snoop;
418 #define NO_SNOOP_RXD 0x01
419 #define NO_SNOOP_RXD_BUFFER 0x02
420 };
421
422 /* This structure provides contains values of the tunable parameters
423 * of the H/W
424 */
425 struct config_param {
426 /* Tx Side */
427 u32 tx_fifo_num; /*Number of Tx FIFOs */
428
429 /* 0-No steering, 1-Priority steering, 2-Default fifo map */
430 #define NO_STEERING 0
431 #define TX_PRIORITY_STEERING 0x1
432 #define TX_DEFAULT_STEERING 0x2
433 u8 tx_steering_type;
434
435 u8 fifo_mapping[MAX_TX_FIFOS];
436 struct tx_fifo_config tx_cfg[MAX_TX_FIFOS]; /*Per-Tx FIFO config */
437 u32 max_txds; /*Max no. of Tx buffer descriptor per TxDL */
438 u64 tx_intr_type;
439 #define INTA 0
440 #define MSI_X 2
441 u8 intr_type;
442 u8 napi;
443
444 /* Specifies if Tx Intr is UTILZ or PER_LIST type. */
445
446 /* Rx Side */
447 u32 rx_ring_num; /*Number of receive rings */
448 #define MAX_RX_BLOCKS_PER_RING 150
449
450 struct rx_ring_config rx_cfg[MAX_RX_RINGS]; /*Per-Rx Ring config */
451
452 #define HEADER_ETHERNET_II_802_3_SIZE 14
453 #define HEADER_802_2_SIZE 3
454 #define HEADER_SNAP_SIZE 5
455 #define HEADER_VLAN_SIZE 4
456
457 #define MIN_MTU 46
458 #define MAX_PYLD 1500
459 #define MAX_MTU (MAX_PYLD+18)
460 #define MAX_MTU_VLAN (MAX_PYLD+22)
461 #define MAX_PYLD_JUMBO 9600
462 #define MAX_MTU_JUMBO (MAX_PYLD_JUMBO+18)
463 #define MAX_MTU_JUMBO_VLAN (MAX_PYLD_JUMBO+22)
464 u16 bus_speed;
465 int max_mc_addr; /* xena=64 herc=256 */
466 int max_mac_addr; /* xena=16 herc=64 */
467 int mc_start_offset; /* xena=16 herc=64 */
468 u8 multiq;
469 };
470
471 /* Structure representing MAC Addrs */
472 struct mac_addr {
473 u8 mac_addr[ETH_ALEN];
474 };
475
476 /* Structure that represent every FIFO element in the BAR1
477 * Address location.
478 */
479 struct TxFIFO_element {
480 u64 TxDL_Pointer;
481
482 u64 List_Control;
483 #define TX_FIFO_LAST_TXD_NUM( val) vBIT(val,0,8)
484 #define TX_FIFO_FIRST_LIST s2BIT(14)
485 #define TX_FIFO_LAST_LIST s2BIT(15)
486 #define TX_FIFO_FIRSTNLAST_LIST vBIT(3,14,2)
487 #define TX_FIFO_SPECIAL_FUNC s2BIT(23)
488 #define TX_FIFO_DS_NO_SNOOP s2BIT(31)
489 #define TX_FIFO_BUFF_NO_SNOOP s2BIT(30)
490 };
491
492 /* Tx descriptor structure */
493 struct TxD {
494 u64 Control_1;
495 /* bit mask */
496 #define TXD_LIST_OWN_XENA s2BIT(7)
497 #define TXD_T_CODE (s2BIT(12)|s2BIT(13)|s2BIT(14)|s2BIT(15))
498 #define TXD_T_CODE_OK(val) (|(val & TXD_T_CODE))
499 #define GET_TXD_T_CODE(val) ((val & TXD_T_CODE)<<12)
500 #define TXD_GATHER_CODE (s2BIT(22) | s2BIT(23))
501 #define TXD_GATHER_CODE_FIRST s2BIT(22)
502 #define TXD_GATHER_CODE_LAST s2BIT(23)
503 #define TXD_TCP_LSO_EN s2BIT(30)
504 #define TXD_UDP_COF_EN s2BIT(31)
505 #define TXD_UFO_EN s2BIT(31) | s2BIT(30)
506 #define TXD_TCP_LSO_MSS(val) vBIT(val,34,14)
507 #define TXD_UFO_MSS(val) vBIT(val,34,14)
508 #define TXD_BUFFER0_SIZE(val) vBIT(val,48,16)
509
510 u64 Control_2;
511 #define TXD_TX_CKO_CONTROL (s2BIT(5)|s2BIT(6)|s2BIT(7))
512 #define TXD_TX_CKO_IPV4_EN s2BIT(5)
513 #define TXD_TX_CKO_TCP_EN s2BIT(6)
514 #define TXD_TX_CKO_UDP_EN s2BIT(7)
515 #define TXD_VLAN_ENABLE s2BIT(15)
516 #define TXD_VLAN_TAG(val) vBIT(val,16,16)
517 #define TXD_INT_NUMBER(val) vBIT(val,34,6)
518 #define TXD_INT_TYPE_PER_LIST s2BIT(47)
519 #define TXD_INT_TYPE_UTILZ s2BIT(46)
520 #define TXD_SET_MARKER vBIT(0x6,0,4)
521
522 u64 Buffer_Pointer;
523 u64 Host_Control; /* reserved for host */
524 };
525
526 /* Structure to hold the phy and virt addr of every TxDL. */
527 struct list_info_hold {
528 dma_addr_t list_phy_addr;
529 void *list_virt_addr;
530 };
531
532 /* Rx descriptor structure for 1 buffer mode */
533 struct RxD_t {
534 u64 Host_Control; /* reserved for host */
535 u64 Control_1;
536 #define RXD_OWN_XENA s2BIT(7)
537 #define RXD_T_CODE (s2BIT(12)|s2BIT(13)|s2BIT(14)|s2BIT(15))
538 #define RXD_FRAME_PROTO vBIT(0xFFFF,24,8)
539 #define RXD_FRAME_VLAN_TAG s2BIT(24)
540 #define RXD_FRAME_PROTO_IPV4 s2BIT(27)
541 #define RXD_FRAME_PROTO_IPV6 s2BIT(28)
542 #define RXD_FRAME_IP_FRAG s2BIT(29)
543 #define RXD_FRAME_PROTO_TCP s2BIT(30)
544 #define RXD_FRAME_PROTO_UDP s2BIT(31)
545 #define TCP_OR_UDP_FRAME (RXD_FRAME_PROTO_TCP | RXD_FRAME_PROTO_UDP)
546 #define RXD_GET_L3_CKSUM(val) ((u16)(val>> 16) & 0xFFFF)
547 #define RXD_GET_L4_CKSUM(val) ((u16)(val) & 0xFFFF)
548
549 u64 Control_2;
550 #define THE_RXD_MARK 0x3
551 #define SET_RXD_MARKER vBIT(THE_RXD_MARK, 0, 2)
552 #define GET_RXD_MARKER(ctrl) ((ctrl & SET_RXD_MARKER) >> 62)
553
554 #define MASK_VLAN_TAG vBIT(0xFFFF,48,16)
555 #define SET_VLAN_TAG(val) vBIT(val,48,16)
556 #define SET_NUM_TAG(val) vBIT(val,16,32)
557
558
559 };
560 /* Rx descriptor structure for 1 buffer mode */
561 struct RxD1 {
562 struct RxD_t h;
563
564 #define MASK_BUFFER0_SIZE_1 vBIT(0x3FFF,2,14)
565 #define SET_BUFFER0_SIZE_1(val) vBIT(val,2,14)
566 #define RXD_GET_BUFFER0_SIZE_1(_Control_2) \
567 (u16)((_Control_2 & MASK_BUFFER0_SIZE_1) >> 48)
568 u64 Buffer0_ptr;
569 };
570 /* Rx descriptor structure for 3 or 2 buffer mode */
571
572 struct RxD3 {
573 struct RxD_t h;
574
575 #define MASK_BUFFER0_SIZE_3 vBIT(0xFF,2,14)
576 #define MASK_BUFFER1_SIZE_3 vBIT(0xFFFF,16,16)
577 #define MASK_BUFFER2_SIZE_3 vBIT(0xFFFF,32,16)
578 #define SET_BUFFER0_SIZE_3(val) vBIT(val,8,8)
579 #define SET_BUFFER1_SIZE_3(val) vBIT(val,16,16)
580 #define SET_BUFFER2_SIZE_3(val) vBIT(val,32,16)
581 #define RXD_GET_BUFFER0_SIZE_3(Control_2) \
582 (u8)((Control_2 & MASK_BUFFER0_SIZE_3) >> 48)
583 #define RXD_GET_BUFFER1_SIZE_3(Control_2) \
584 (u16)((Control_2 & MASK_BUFFER1_SIZE_3) >> 32)
585 #define RXD_GET_BUFFER2_SIZE_3(Control_2) \
586 (u16)((Control_2 & MASK_BUFFER2_SIZE_3) >> 16)
587 #define BUF0_LEN 40
588 #define BUF1_LEN 1
589
590 u64 Buffer0_ptr;
591 u64 Buffer1_ptr;
592 u64 Buffer2_ptr;
593 };
594
595
596 /* Structure that represents the Rx descriptor block which contains
597 * 128 Rx descriptors.
598 */
599 struct RxD_block {
600 #define MAX_RXDS_PER_BLOCK_1 127
601 struct RxD1 rxd[MAX_RXDS_PER_BLOCK_1];
602
603 u64 reserved_0;
604 #define END_OF_BLOCK 0xFEFFFFFFFFFFFFFFULL
605 u64 reserved_1; /* 0xFEFFFFFFFFFFFFFF to mark last
606 * Rxd in this blk */
607 u64 reserved_2_pNext_RxD_block; /* Logical ptr to next */
608 u64 pNext_RxD_Blk_physical; /* Buff0_ptr.In a 32 bit arch
609 * the upper 32 bits should
610 * be 0 */
611 };
612
613 #define SIZE_OF_BLOCK 4096
614
615 #define RXD_MODE_1 0 /* One Buffer mode */
616 #define RXD_MODE_3B 1 /* Two Buffer mode */
617
618 /* Structure to hold virtual addresses of Buf0 and Buf1 in
619 * 2buf mode. */
620 struct buffAdd {
621 void *ba_0_org;
622 void *ba_1_org;
623 void *ba_0;
624 void *ba_1;
625 };
626
627 /* Structure which stores all the MAC control parameters */
628
629 /* This structure stores the offset of the RxD in the ring
630 * from which the Rx Interrupt processor can start picking
631 * up the RxDs for processing.
632 */
633 struct rx_curr_get_info {
634 u32 block_index;
635 u32 offset;
636 u32 ring_len;
637 };
638
639 struct rx_curr_put_info {
640 u32 block_index;
641 u32 offset;
642 u32 ring_len;
643 };
644
645 /* This structure stores the offset of the TxDl in the FIFO
646 * from which the Tx Interrupt processor can start picking
647 * up the TxDLs for send complete interrupt processing.
648 */
649 struct tx_curr_get_info {
650 u32 offset;
651 u32 fifo_len;
652 };
653
654 struct tx_curr_put_info {
655 u32 offset;
656 u32 fifo_len;
657 };
658
659 struct rxd_info {
660 void *virt_addr;
661 dma_addr_t dma_addr;
662 };
663
664 /* Structure that holds the Phy and virt addresses of the Blocks */
665 struct rx_block_info {
666 void *block_virt_addr;
667 dma_addr_t block_dma_addr;
668 struct rxd_info *rxds;
669 };
670
671 /* Data structure to represent a LRO session */
672 struct lro {
673 struct sk_buff *parent;
674 struct sk_buff *last_frag;
675 u8 *l2h;
676 struct iphdr *iph;
677 struct tcphdr *tcph;
678 u32 tcp_next_seq;
679 __be32 tcp_ack;
680 int total_len;
681 int frags_len;
682 int sg_num;
683 int in_use;
684 __be16 window;
685 u16 vlan_tag;
686 u32 cur_tsval;
687 __be32 cur_tsecr;
688 u8 saw_ts;
689 } ____cacheline_aligned;
690
691 /* Ring specific structure */
692 struct ring_info {
693 /* The ring number */
694 int ring_no;
695
696 /* per-ring buffer counter */
697 u32 rx_bufs_left;
698
699 #define MAX_LRO_SESSIONS 32
700 struct lro lro0_n[MAX_LRO_SESSIONS];
701 u8 lro;
702
703 /* copy of sp->rxd_mode flag */
704 int rxd_mode;
705
706 /* Number of rxds per block for the rxd_mode */
707 int rxd_count;
708
709 /* copy of sp pointer */
710 struct s2io_nic *nic;
711
712 /* copy of sp->dev pointer */
713 struct net_device *dev;
714
715 /* copy of sp->pdev pointer */
716 struct pci_dev *pdev;
717
718 /* Per ring napi struct */
719 struct napi_struct napi;
720
721 unsigned long interrupt_count;
722
723 /*
724 * Place holders for the virtual and physical addresses of
725 * all the Rx Blocks
726 */
727 struct rx_block_info rx_blocks[MAX_RX_BLOCKS_PER_RING];
728 int block_count;
729 int pkt_cnt;
730
731 /*
732 * Put pointer info which indictes which RxD has to be replenished
733 * with a new buffer.
734 */
735 struct rx_curr_put_info rx_curr_put_info;
736
737 /*
738 * Get pointer info which indictes which is the last RxD that was
739 * processed by the driver.
740 */
741 struct rx_curr_get_info rx_curr_get_info;
742
743 /* interface MTU value */
744 unsigned mtu;
745
746 /* Buffer Address store. */
747 struct buffAdd **ba;
748 } ____cacheline_aligned;
749
750 /* Fifo specific structure */
751 struct fifo_info {
752 /* FIFO number */
753 int fifo_no;
754
755 /* Maximum TxDs per TxDL */
756 int max_txds;
757
758 /* Place holder of all the TX List's Phy and Virt addresses. */
759 struct list_info_hold *list_info;
760
761 /*
762 * Current offset within the tx FIFO where driver would write
763 * new Tx frame
764 */
765 struct tx_curr_put_info tx_curr_put_info;
766
767 /*
768 * Current offset within tx FIFO from where the driver would start freeing
769 * the buffers
770 */
771 struct tx_curr_get_info tx_curr_get_info;
772 #define FIFO_QUEUE_START 0
773 #define FIFO_QUEUE_STOP 1
774 int queue_state;
775
776 /* copy of sp->dev pointer */
777 struct net_device *dev;
778
779 /* copy of multiq status */
780 u8 multiq;
781
782 /* Per fifo lock */
783 spinlock_t tx_lock;
784
785 /* Per fifo UFO in band structure */
786 u64 *ufo_in_band_v;
787
788 struct s2io_nic *nic;
789 } ____cacheline_aligned;
790
791 /* Information related to the Tx and Rx FIFOs and Rings of Xena
792 * is maintained in this structure.
793 */
794 struct mac_info {
795 /* tx side stuff */
796 /* logical pointer of start of each Tx FIFO */
797 struct TxFIFO_element __iomem *tx_FIFO_start[MAX_TX_FIFOS];
798
799 /* Fifo specific structure */
800 struct fifo_info fifos[MAX_TX_FIFOS];
801
802 /* Save virtual address of TxD page with zero DMA addr(if any) */
803 void *zerodma_virt_addr;
804
805 /* rx side stuff */
806 /* Ring specific structure */
807 struct ring_info rings[MAX_RX_RINGS];
808
809 u16 rmac_pause_time;
810 u16 mc_pause_threshold_q0q3;
811 u16 mc_pause_threshold_q4q7;
812
813 void *stats_mem; /* orignal pointer to allocated mem */
814 dma_addr_t stats_mem_phy; /* Physical address of the stat block */
815 u32 stats_mem_sz;
816 struct stat_block *stats_info; /* Logical address of the stat block */
817 };
818
819 /* structure representing the user defined MAC addresses */
820 struct usr_addr {
821 char addr[ETH_ALEN];
822 int usage_cnt;
823 };
824
825 /* Default Tunable parameters of the NIC. */
826 #define DEFAULT_FIFO_0_LEN 4096
827 #define DEFAULT_FIFO_1_7_LEN 512
828 #define SMALL_BLK_CNT 30
829 #define LARGE_BLK_CNT 100
830
831 /*
832 * Structure to keep track of the MSI-X vectors and the corresponding
833 * argument registered against each vector
834 */
835 #define MAX_REQUESTED_MSI_X 9
836 struct s2io_msix_entry
837 {
838 u16 vector;
839 u16 entry;
840 void *arg;
841
842 u8 type;
843 #define MSIX_ALARM_TYPE 1
844 #define MSIX_RING_TYPE 2
845
846 u8 in_use;
847 #define MSIX_REGISTERED_SUCCESS 0xAA
848 };
849
850 struct msix_info_st {
851 u64 addr;
852 u64 data;
853 };
854
855 /* These flags represent the devices temporary state */
856 enum s2io_device_state_t
857 {
858 __S2IO_STATE_LINK_TASK=0,
859 __S2IO_STATE_CARD_UP
860 };
861
862 /* Structure representing one instance of the NIC */
863 struct s2io_nic {
864 int rxd_mode;
865 /*
866 * Count of packets to be processed in a given iteration, it will be indicated
867 * by the quota field of the device structure when NAPI is enabled.
868 */
869 int pkts_to_process;
870 struct net_device *dev;
871 struct mac_info mac_control;
872 struct config_param config;
873 struct pci_dev *pdev;
874 void __iomem *bar0;
875 void __iomem *bar1;
876 #define MAX_MAC_SUPPORTED 16
877 #define MAX_SUPPORTED_MULTICASTS MAX_MAC_SUPPORTED
878
879 struct mac_addr def_mac_addr[256];
880
881 struct net_device_stats stats;
882 int high_dma_flag;
883 int device_enabled_once;
884
885 char name[60];
886
887 /* Timer that handles I/O errors/exceptions */
888 struct timer_list alarm_timer;
889
890 /* Space to back up the PCI config space */
891 u32 config_space[256 / sizeof(u32)];
892
893 #define PROMISC 1
894 #define ALL_MULTI 2
895
896 #define MAX_ADDRS_SUPPORTED 64
897 u16 usr_addr_count;
898 u16 mc_addr_count;
899 struct usr_addr usr_addrs[256];
900
901 u16 m_cast_flg;
902 u16 all_multi_pos;
903 u16 promisc_flg;
904
905 /* Id timer, used to blink NIC to physically identify NIC. */
906 struct timer_list id_timer;
907
908 /* Restart timer, used to restart NIC if the device is stuck and
909 * a schedule task that will set the correct Link state once the
910 * NIC's PHY has stabilized after a state change.
911 */
912 struct work_struct rst_timer_task;
913 struct work_struct set_link_task;
914
915 /* Flag that can be used to turn on or turn off the Rx checksum
916 * offload feature.
917 */
918 int rx_csum;
919
920 /* Below variables are used for fifo selection to transmit a packet */
921 u16 fifo_selector[MAX_TX_FIFOS];
922
923 /* Total fifos for tcp packets */
924 u8 total_tcp_fifos;
925
926 /*
927 * Beginning index of udp for udp packets
928 * Value will be equal to
929 * (tx_fifo_num - FIFO_UDP_MAX_NUM - FIFO_OTHER_MAX_NUM)
930 */
931 u8 udp_fifo_idx;
932
933 u8 total_udp_fifos;
934
935 /*
936 * Beginning index of fifo for all other packets
937 * Value will be equal to (tx_fifo_num - FIFO_OTHER_MAX_NUM)
938 */
939 u8 other_fifo_idx;
940
941 struct napi_struct napi;
942 /* after blink, the adapter must be restored with original
943 * values.
944 */
945 u64 adapt_ctrl_org;
946
947 /* Last known link state. */
948 u16 last_link_state;
949 #define LINK_DOWN 1
950 #define LINK_UP 2
951
952 int task_flag;
953 unsigned long long start_time;
954 struct vlan_group *vlgrp;
955 int vlan_strip_flag;
956 #define MSIX_FLG 0xA5
957 int num_entries;
958 struct msix_entry *entries;
959 int msi_detected;
960 wait_queue_head_t msi_wait;
961 struct s2io_msix_entry *s2io_entries;
962 char desc[MAX_REQUESTED_MSI_X][25];
963
964 int avail_msix_vectors; /* No. of MSI-X vectors granted by system */
965
966 struct msix_info_st msix_info[0x3f];
967
968 #define XFRAME_I_DEVICE 1
969 #define XFRAME_II_DEVICE 2
970 u8 device_type;
971
972 unsigned long clubbed_frms_cnt;
973 unsigned long sending_both;
974 u8 lro;
975 u16 lro_max_aggr_per_sess;
976 volatile unsigned long state;
977 u64 general_int_mask;
978
979 #define VPD_STRING_LEN 80
980 u8 product_name[VPD_STRING_LEN];
981 u8 serial_num[VPD_STRING_LEN];
982 };
983
984 #define RESET_ERROR 1;
985 #define CMD_ERROR 2;
986
987 /* OS related system calls */
988 #ifndef readq
989 static inline u64 readq(void __iomem *addr)
990 {
991 u64 ret = 0;
992 ret = readl(addr + 4);
993 ret <<= 32;
994 ret |= readl(addr);
995
996 return ret;
997 }
998 #endif
999
1000 #ifndef writeq
1001 static inline void writeq(u64 val, void __iomem *addr)
1002 {
1003 writel((u32) (val), addr);
1004 writel((u32) (val >> 32), (addr + 4));
1005 }
1006 #endif
1007
1008 /*
1009 * Some registers have to be written in a particular order to
1010 * expect correct hardware operation. The macro SPECIAL_REG_WRITE
1011 * is used to perform such ordered writes. Defines UF (Upper First)
1012 * and LF (Lower First) will be used to specify the required write order.
1013 */
1014 #define UF 1
1015 #define LF 2
1016 static inline void SPECIAL_REG_WRITE(u64 val, void __iomem *addr, int order)
1017 {
1018 u32 ret;
1019
1020 if (order == LF) {
1021 writel((u32) (val), addr);
1022 ret = readl(addr);
1023 writel((u32) (val >> 32), (addr + 4));
1024 ret = readl(addr + 4);
1025 } else {
1026 writel((u32) (val >> 32), (addr + 4));
1027 ret = readl(addr + 4);
1028 writel((u32) (val), addr);
1029 ret = readl(addr);
1030 }
1031 }
1032
1033 /* Interrupt related values of Xena */
1034
1035 #define ENABLE_INTRS 1
1036 #define DISABLE_INTRS 2
1037
1038 /* Highest level interrupt blocks */
1039 #define TX_PIC_INTR (0x0001<<0)
1040 #define TX_DMA_INTR (0x0001<<1)
1041 #define TX_MAC_INTR (0x0001<<2)
1042 #define TX_XGXS_INTR (0x0001<<3)
1043 #define TX_TRAFFIC_INTR (0x0001<<4)
1044 #define RX_PIC_INTR (0x0001<<5)
1045 #define RX_DMA_INTR (0x0001<<6)
1046 #define RX_MAC_INTR (0x0001<<7)
1047 #define RX_XGXS_INTR (0x0001<<8)
1048 #define RX_TRAFFIC_INTR (0x0001<<9)
1049 #define MC_INTR (0x0001<<10)
1050 #define ENA_ALL_INTRS ( TX_PIC_INTR | \
1051 TX_DMA_INTR | \
1052 TX_MAC_INTR | \
1053 TX_XGXS_INTR | \
1054 TX_TRAFFIC_INTR | \
1055 RX_PIC_INTR | \
1056 RX_DMA_INTR | \
1057 RX_MAC_INTR | \
1058 RX_XGXS_INTR | \
1059 RX_TRAFFIC_INTR | \
1060 MC_INTR )
1061
1062 /* Interrupt masks for the general interrupt mask register */
1063 #define DISABLE_ALL_INTRS 0xFFFFFFFFFFFFFFFFULL
1064
1065 #define TXPIC_INT_M s2BIT(0)
1066 #define TXDMA_INT_M s2BIT(1)
1067 #define TXMAC_INT_M s2BIT(2)
1068 #define TXXGXS_INT_M s2BIT(3)
1069 #define TXTRAFFIC_INT_M s2BIT(8)
1070 #define PIC_RX_INT_M s2BIT(32)
1071 #define RXDMA_INT_M s2BIT(33)
1072 #define RXMAC_INT_M s2BIT(34)
1073 #define MC_INT_M s2BIT(35)
1074 #define RXXGXS_INT_M s2BIT(36)
1075 #define RXTRAFFIC_INT_M s2BIT(40)
1076
1077 /* PIC level Interrupts TODO*/
1078
1079 /* DMA level Inressupts */
1080 #define TXDMA_PFC_INT_M s2BIT(0)
1081 #define TXDMA_PCC_INT_M s2BIT(2)
1082
1083 /* PFC block interrupts */
1084 #define PFC_MISC_ERR_1 s2BIT(0) /* Interrupt to indicate FIFO full */
1085
1086 /* PCC block interrupts. */
1087 #define PCC_FB_ECC_ERR vBIT(0xff, 16, 8) /* Interrupt to indicate
1088 PCC_FB_ECC Error. */
1089
1090 #define RXD_GET_VLAN_TAG(Control_2) (u16)(Control_2 & MASK_VLAN_TAG)
1091 /*
1092 * Prototype declaration.
1093 */
1094 static int __devinit s2io_init_nic(struct pci_dev *pdev,
1095 const struct pci_device_id *pre);
1096 static void __devexit s2io_rem_nic(struct pci_dev *pdev);
1097 static int init_shared_mem(struct s2io_nic *sp);
1098 static void free_shared_mem(struct s2io_nic *sp);
1099 static int init_nic(struct s2io_nic *nic);
1100 static int rx_intr_handler(struct ring_info *ring_data, int budget);
1101 static void s2io_txpic_intr_handle(struct s2io_nic *sp);
1102 static void tx_intr_handler(struct fifo_info *fifo_data);
1103 static void s2io_handle_errors(void * dev_id);
1104
1105 static int s2io_starter(void);
1106 static void s2io_closer(void);
1107 static void s2io_tx_watchdog(struct net_device *dev);
1108 static void s2io_set_multicast(struct net_device *dev);
1109 static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp);
1110 static void s2io_link(struct s2io_nic * sp, int link);
1111 static void s2io_reset(struct s2io_nic * sp);
1112 static int s2io_poll_msix(struct napi_struct *napi, int budget);
1113 static int s2io_poll_inta(struct napi_struct *napi, int budget);
1114 static void s2io_init_pci(struct s2io_nic * sp);
1115 static int do_s2io_prog_unicast(struct net_device *dev, u8 *addr);
1116 static void s2io_alarm_handle(unsigned long data);
1117 static irqreturn_t
1118 s2io_msix_ring_handle(int irq, void *dev_id);
1119 static irqreturn_t
1120 s2io_msix_fifo_handle(int irq, void *dev_id);
1121 static irqreturn_t s2io_isr(int irq, void *dev_id);
1122 static int verify_xena_quiescence(struct s2io_nic *sp);
1123 static const struct ethtool_ops netdev_ethtool_ops;
1124 static void s2io_set_link(struct work_struct *work);
1125 static int s2io_set_swapper(struct s2io_nic * sp);
1126 static void s2io_card_down(struct s2io_nic *nic);
1127 static int s2io_card_up(struct s2io_nic *nic);
1128 static int wait_for_cmd_complete(void __iomem *addr, u64 busy_bit,
1129 int bit_state);
1130 static int s2io_add_isr(struct s2io_nic * sp);
1131 static void s2io_rem_isr(struct s2io_nic * sp);
1132
1133 static void restore_xmsi_data(struct s2io_nic *nic);
1134 static void do_s2io_store_unicast_mc(struct s2io_nic *sp);
1135 static void do_s2io_restore_unicast_mc(struct s2io_nic *sp);
1136 static u64 do_s2io_read_unicast_mc(struct s2io_nic *sp, int offset);
1137 static int do_s2io_add_mc(struct s2io_nic *sp, u8 *addr);
1138 static int do_s2io_add_mac(struct s2io_nic *sp, u64 addr, int offset);
1139 static int do_s2io_delete_unicast_mc(struct s2io_nic *sp, u64 addr);
1140
1141 static int s2io_club_tcp_session(struct ring_info *ring_data, u8 *buffer,
1142 u8 **tcp, u32 *tcp_len, struct lro **lro, struct RxD_t *rxdp,
1143 struct s2io_nic *sp);
1144 static void clear_lro_session(struct lro *lro);
1145 static void queue_rx_frame(struct sk_buff *skb, u16 vlan_tag);
1146 static void update_L3L4_header(struct s2io_nic *sp, struct lro *lro);
1147 static void lro_append_pkt(struct s2io_nic *sp, struct lro *lro,
1148 struct sk_buff *skb, u32 tcp_len);
1149 static int rts_ds_steer(struct s2io_nic *nic, u8 ds_codepoint, u8 ring);
1150
1151 static pci_ers_result_t s2io_io_error_detected(struct pci_dev *pdev,
1152 pci_channel_state_t state);
1153 static pci_ers_result_t s2io_io_slot_reset(struct pci_dev *pdev);
1154 static void s2io_io_resume(struct pci_dev *pdev);
1155
1156 #define s2io_tcp_mss(skb) skb_shinfo(skb)->gso_size
1157 #define s2io_udp_mss(skb) skb_shinfo(skb)->gso_size
1158 #define s2io_offload_type(skb) skb_shinfo(skb)->gso_type
1159
1160 #define S2IO_PARM_INT(X, def_val) \
1161 static unsigned int X = def_val;\
1162 module_param(X , uint, 0);
1163
1164 #endif /* _S2IO_H */
Linux with added FPC-III support