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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/************************************************************************
2 * s2io.h: A Linux PCI-X Ethernet driver for S2IO 10GbE Server NIC
3 * Copyright(c) 2002-2005 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 BIT(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#ifndef BOOL
22#define BOOL int
23#endif
24
25#ifndef TRUE
26#define TRUE 1
27#define FALSE 0
28#endif
29
30#undef SUCCESS
31#define SUCCESS 0
32#define FAILURE -1
33
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -070034/* Maximum time to flicker LED when asked to identify NIC using ethtool */
35#define MAX_FLICKER_TIME 60000 /* 60 Secs */
36
Linus Torvalds1da177e2005-04-16 15:20:36 -070037/* Maximum outstanding splits to be configured into xena. */
38typedef enum xena_max_outstanding_splits {
39 XENA_ONE_SPLIT_TRANSACTION = 0,
40 XENA_TWO_SPLIT_TRANSACTION = 1,
41 XENA_THREE_SPLIT_TRANSACTION = 2,
42 XENA_FOUR_SPLIT_TRANSACTION = 3,
43 XENA_EIGHT_SPLIT_TRANSACTION = 4,
44 XENA_TWELVE_SPLIT_TRANSACTION = 5,
45 XENA_SIXTEEN_SPLIT_TRANSACTION = 6,
46 XENA_THIRTYTWO_SPLIT_TRANSACTION = 7
47} xena_max_outstanding_splits;
48#define XENA_MAX_OUTSTANDING_SPLITS(n) (n << 4)
49
50/* OS concerned variables and constants */
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -070051#define WATCH_DOG_TIMEOUT 15*HZ
52#define EFILL 0x1234
53#define ALIGN_SIZE 127
54#define PCIX_COMMAND_REGISTER 0x62
Linus Torvalds1da177e2005-04-16 15:20:36 -070055
56/*
57 * Debug related variables.
58 */
59/* different debug levels. */
60#define ERR_DBG 0
61#define INIT_DBG 1
62#define INFO_DBG 2
63#define TX_DBG 3
64#define INTR_DBG 4
65
66/* Global variable that defines the present debug level of the driver. */
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -070067int debug_level = ERR_DBG; /* Default level. */
Linus Torvalds1da177e2005-04-16 15:20:36 -070068
69/* DEBUG message print. */
70#define DBG_PRINT(dbg_level, args...) if(!(debug_level<dbg_level)) printk(args)
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
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -070077/* Driver statistics maintained by driver */
78typedef struct {
79 unsigned long long single_ecc_errs;
80 unsigned long long double_ecc_errs;
81} swStat_t;
82
Linus Torvalds1da177e2005-04-16 15:20:36 -070083/* The statistics block of Xena */
84typedef struct stat_block {
85/* Tx MAC statistics counters. */
86 u32 tmac_data_octets;
87 u32 tmac_frms;
88 u64 tmac_drop_frms;
89 u32 tmac_bcst_frms;
90 u32 tmac_mcst_frms;
91 u64 tmac_pause_ctrl_frms;
92 u32 tmac_ucst_frms;
93 u32 tmac_ttl_octets;
94 u32 tmac_any_err_frms;
95 u32 tmac_nucst_frms;
96 u64 tmac_ttl_less_fb_octets;
97 u64 tmac_vld_ip_octets;
98 u32 tmac_drop_ip;
99 u32 tmac_vld_ip;
100 u32 tmac_rst_tcp;
101 u32 tmac_icmp;
102 u64 tmac_tcp;
103 u32 reserved_0;
104 u32 tmac_udp;
105
106/* Rx MAC Statistics counters. */
107 u32 rmac_data_octets;
108 u32 rmac_vld_frms;
109 u64 rmac_fcs_err_frms;
110 u64 rmac_drop_frms;
111 u32 rmac_vld_bcst_frms;
112 u32 rmac_vld_mcst_frms;
113 u32 rmac_out_rng_len_err_frms;
114 u32 rmac_in_rng_len_err_frms;
115 u64 rmac_long_frms;
116 u64 rmac_pause_ctrl_frms;
117 u64 rmac_unsup_ctrl_frms;
118 u32 rmac_accepted_ucst_frms;
119 u32 rmac_ttl_octets;
120 u32 rmac_discarded_frms;
121 u32 rmac_accepted_nucst_frms;
122 u32 reserved_1;
123 u32 rmac_drop_events;
124 u64 rmac_ttl_less_fb_octets;
125 u64 rmac_ttl_frms;
126 u64 reserved_2;
127 u32 rmac_usized_frms;
128 u32 reserved_3;
129 u32 rmac_frag_frms;
130 u32 rmac_osized_frms;
131 u32 reserved_4;
132 u32 rmac_jabber_frms;
133 u64 rmac_ttl_64_frms;
134 u64 rmac_ttl_65_127_frms;
135 u64 reserved_5;
136 u64 rmac_ttl_128_255_frms;
137 u64 rmac_ttl_256_511_frms;
138 u64 reserved_6;
139 u64 rmac_ttl_512_1023_frms;
140 u64 rmac_ttl_1024_1518_frms;
141 u32 rmac_ip;
142 u32 reserved_7;
143 u64 rmac_ip_octets;
144 u32 rmac_drop_ip;
145 u32 rmac_hdr_err_ip;
146 u32 reserved_8;
147 u32 rmac_icmp;
148 u64 rmac_tcp;
149 u32 rmac_err_drp_udp;
150 u32 rmac_udp;
151 u64 rmac_xgmii_err_sym;
152 u64 rmac_frms_q0;
153 u64 rmac_frms_q1;
154 u64 rmac_frms_q2;
155 u64 rmac_frms_q3;
156 u64 rmac_frms_q4;
157 u64 rmac_frms_q5;
158 u64 rmac_frms_q6;
159 u64 rmac_frms_q7;
160 u16 rmac_full_q3;
161 u16 rmac_full_q2;
162 u16 rmac_full_q1;
163 u16 rmac_full_q0;
164 u16 rmac_full_q7;
165 u16 rmac_full_q6;
166 u16 rmac_full_q5;
167 u16 rmac_full_q4;
168 u32 reserved_9;
169 u32 rmac_pause_cnt;
170 u64 rmac_xgmii_data_err_cnt;
171 u64 rmac_xgmii_ctrl_err_cnt;
172 u32 rmac_err_tcp;
173 u32 rmac_accepted_ip;
174
175/* PCI/PCI-X Read transaction statistics. */
176 u32 new_rd_req_cnt;
177 u32 rd_req_cnt;
178 u32 rd_rtry_cnt;
179 u32 new_rd_req_rtry_cnt;
180
181/* PCI/PCI-X Write/Read transaction statistics. */
182 u32 wr_req_cnt;
183 u32 wr_rtry_rd_ack_cnt;
184 u32 new_wr_req_rtry_cnt;
185 u32 new_wr_req_cnt;
186 u32 wr_disc_cnt;
187 u32 wr_rtry_cnt;
188
189/* PCI/PCI-X Write / DMA Transaction statistics. */
190 u32 txp_wr_cnt;
191 u32 rd_rtry_wr_ack_cnt;
192 u32 txd_wr_cnt;
193 u32 txd_rd_cnt;
194 u32 rxd_wr_cnt;
195 u32 rxd_rd_cnt;
196 u32 rxf_wr_cnt;
197 u32 txf_rd_cnt;
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -0700198
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700199/* Tx MAC statistics overflow counters. */
200 u32 tmac_data_octets_oflow;
201 u32 tmac_frms_oflow;
202 u32 tmac_bcst_frms_oflow;
203 u32 tmac_mcst_frms_oflow;
204 u32 tmac_ucst_frms_oflow;
205 u32 tmac_ttl_octets_oflow;
206 u32 tmac_any_err_frms_oflow;
207 u32 tmac_nucst_frms_oflow;
208 u64 tmac_vlan_frms;
209 u32 tmac_drop_ip_oflow;
210 u32 tmac_vld_ip_oflow;
211 u32 tmac_rst_tcp_oflow;
212 u32 tmac_icmp_oflow;
213 u32 tpa_unknown_protocol;
214 u32 tmac_udp_oflow;
215 u32 reserved_10;
216 u32 tpa_parse_failure;
217
218/* Rx MAC Statistics overflow counters. */
219 u32 rmac_data_octets_oflow;
220 u32 rmac_vld_frms_oflow;
221 u32 rmac_vld_bcst_frms_oflow;
222 u32 rmac_vld_mcst_frms_oflow;
223 u32 rmac_accepted_ucst_frms_oflow;
224 u32 rmac_ttl_octets_oflow;
225 u32 rmac_discarded_frms_oflow;
226 u32 rmac_accepted_nucst_frms_oflow;
227 u32 rmac_usized_frms_oflow;
228 u32 rmac_drop_events_oflow;
229 u32 rmac_frag_frms_oflow;
230 u32 rmac_osized_frms_oflow;
231 u32 rmac_ip_oflow;
232 u32 rmac_jabber_frms_oflow;
233 u32 rmac_icmp_oflow;
234 u32 rmac_drop_ip_oflow;
235 u32 rmac_err_drp_udp_oflow;
236 u32 rmac_udp_oflow;
237 u32 reserved_11;
238 u32 rmac_pause_cnt_oflow;
239 u64 rmac_ttl_1519_4095_frms;
240 u64 rmac_ttl_4096_8191_frms;
241 u64 rmac_ttl_8192_max_frms;
242 u64 rmac_ttl_gt_max_frms;
243 u64 rmac_osized_alt_frms;
244 u64 rmac_jabber_alt_frms;
245 u64 rmac_gt_max_alt_frms;
246 u64 rmac_vlan_frms;
247 u32 rmac_len_discard;
248 u32 rmac_fcs_discard;
249 u32 rmac_pf_discard;
250 u32 rmac_da_discard;
251 u32 rmac_red_discard;
252 u32 rmac_rts_discard;
253 u32 reserved_12;
254 u32 rmac_ingm_full_discard;
255 u32 reserved_13;
256 u32 rmac_accepted_ip_oflow;
257 u32 reserved_14;
258 u32 link_fault_cnt;
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -0700259 swStat_t sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260} StatInfo_t;
261
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700262/*
263 * Structures representing different init time configuration
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264 * parameters of the NIC.
265 */
266
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700267#define MAX_TX_FIFOS 8
268#define MAX_RX_RINGS 8
269
270/* FIFO mappings for all possible number of fifos configured */
271int fifo_map[][MAX_TX_FIFOS] = {
272 {0, 0, 0, 0, 0, 0, 0, 0},
273 {0, 0, 0, 0, 1, 1, 1, 1},
274 {0, 0, 0, 1, 1, 1, 2, 2},
275 {0, 0, 1, 1, 2, 2, 3, 3},
276 {0, 0, 1, 1, 2, 2, 3, 4},
277 {0, 0, 1, 1, 2, 3, 4, 5},
278 {0, 0, 1, 2, 3, 4, 5, 6},
279 {0, 1, 2, 3, 4, 5, 6, 7},
280};
281
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282/* Maintains Per FIFO related information. */
283typedef struct tx_fifo_config {
284#define MAX_AVAILABLE_TXDS 8192
285 u32 fifo_len; /* specifies len of FIFO upto 8192, ie no of TxDLs */
286/* Priority definition */
287#define TX_FIFO_PRI_0 0 /*Highest */
288#define TX_FIFO_PRI_1 1
289#define TX_FIFO_PRI_2 2
290#define TX_FIFO_PRI_3 3
291#define TX_FIFO_PRI_4 4
292#define TX_FIFO_PRI_5 5
293#define TX_FIFO_PRI_6 6
294#define TX_FIFO_PRI_7 7 /*lowest */
295 u8 fifo_priority; /* specifies pointer level for FIFO */
296 /* user should not set twos fifos with same pri */
297 u8 f_no_snoop;
298#define NO_SNOOP_TXD 0x01
299#define NO_SNOOP_TXD_BUFFER 0x02
300} tx_fifo_config_t;
301
302
303/* Maintains per Ring related information */
304typedef struct rx_ring_config {
305 u32 num_rxd; /*No of RxDs per Rx Ring */
306#define RX_RING_PRI_0 0 /* highest */
307#define RX_RING_PRI_1 1
308#define RX_RING_PRI_2 2
309#define RX_RING_PRI_3 3
310#define RX_RING_PRI_4 4
311#define RX_RING_PRI_5 5
312#define RX_RING_PRI_6 6
313#define RX_RING_PRI_7 7 /* lowest */
314
315 u8 ring_priority; /*Specifies service priority of ring */
316 /* OSM should not set any two rings with same priority */
317 u8 ring_org; /*Organization of ring */
318#define RING_ORG_BUFF1 0x01
319#define RX_RING_ORG_BUFF3 0x03
320#define RX_RING_ORG_BUFF5 0x05
321
322 u8 f_no_snoop;
323#define NO_SNOOP_RXD 0x01
324#define NO_SNOOP_RXD_BUFFER 0x02
325} rx_ring_config_t;
326
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700327/* This structure provides contains values of the tunable parameters
328 * of the H/W
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329 */
330struct config_param {
331/* Tx Side */
332 u32 tx_fifo_num; /*Number of Tx FIFOs */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700334 u8 fifo_mapping[MAX_TX_FIFOS];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335 tx_fifo_config_t tx_cfg[MAX_TX_FIFOS]; /*Per-Tx FIFO config */
336 u32 max_txds; /*Max no. of Tx buffer descriptor per TxDL */
337 u64 tx_intr_type;
338 /* Specifies if Tx Intr is UTILZ or PER_LIST type. */
339
340/* Rx Side */
341 u32 rx_ring_num; /*Number of receive rings */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342#define MAX_RX_BLOCKS_PER_RING 150
343
344 rx_ring_config_t rx_cfg[MAX_RX_RINGS]; /*Per-Rx Ring config */
raghavendra.koushik@neterion.comb6e3f982005-08-03 12:38:01 -0700345 u8 bimodal; /*Flag for setting bimodal interrupts*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346
347#define HEADER_ETHERNET_II_802_3_SIZE 14
348#define HEADER_802_2_SIZE 3
349#define HEADER_SNAP_SIZE 5
350#define HEADER_VLAN_SIZE 4
351
352#define MIN_MTU 46
353#define MAX_PYLD 1500
354#define MAX_MTU (MAX_PYLD+18)
355#define MAX_MTU_VLAN (MAX_PYLD+22)
356#define MAX_PYLD_JUMBO 9600
357#define MAX_MTU_JUMBO (MAX_PYLD_JUMBO+18)
358#define MAX_MTU_JUMBO_VLAN (MAX_PYLD_JUMBO+22)
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700359 u16 bus_speed;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360};
361
362/* Structure representing MAC Addrs */
363typedef struct mac_addr {
364 u8 mac_addr[ETH_ALEN];
365} macaddr_t;
366
367/* Structure that represent every FIFO element in the BAR1
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700368 * Address location.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700369 */
370typedef struct _TxFIFO_element {
371 u64 TxDL_Pointer;
372
373 u64 List_Control;
374#define TX_FIFO_LAST_TXD_NUM( val) vBIT(val,0,8)
375#define TX_FIFO_FIRST_LIST BIT(14)
376#define TX_FIFO_LAST_LIST BIT(15)
377#define TX_FIFO_FIRSTNLAST_LIST vBIT(3,14,2)
378#define TX_FIFO_SPECIAL_FUNC BIT(23)
379#define TX_FIFO_DS_NO_SNOOP BIT(31)
380#define TX_FIFO_BUFF_NO_SNOOP BIT(30)
381} TxFIFO_element_t;
382
383/* Tx descriptor structure */
384typedef struct _TxD {
385 u64 Control_1;
386/* bit mask */
387#define TXD_LIST_OWN_XENA BIT(7)
388#define TXD_T_CODE (BIT(12)|BIT(13)|BIT(14)|BIT(15))
389#define TXD_T_CODE_OK(val) (|(val & TXD_T_CODE))
390#define GET_TXD_T_CODE(val) ((val & TXD_T_CODE)<<12)
391#define TXD_GATHER_CODE (BIT(22) | BIT(23))
392#define TXD_GATHER_CODE_FIRST BIT(22)
393#define TXD_GATHER_CODE_LAST BIT(23)
394#define TXD_TCP_LSO_EN BIT(30)
395#define TXD_UDP_COF_EN BIT(31)
396#define TXD_TCP_LSO_MSS(val) vBIT(val,34,14)
397#define TXD_BUFFER0_SIZE(val) vBIT(val,48,16)
398
399 u64 Control_2;
400#define TXD_TX_CKO_CONTROL (BIT(5)|BIT(6)|BIT(7))
401#define TXD_TX_CKO_IPV4_EN BIT(5)
402#define TXD_TX_CKO_TCP_EN BIT(6)
403#define TXD_TX_CKO_UDP_EN BIT(7)
404#define TXD_VLAN_ENABLE BIT(15)
405#define TXD_VLAN_TAG(val) vBIT(val,16,16)
406#define TXD_INT_NUMBER(val) vBIT(val,34,6)
407#define TXD_INT_TYPE_PER_LIST BIT(47)
408#define TXD_INT_TYPE_UTILZ BIT(46)
409#define TXD_SET_MARKER vBIT(0x6,0,4)
410
411 u64 Buffer_Pointer;
412 u64 Host_Control; /* reserved for host */
413} TxD_t;
414
415/* Structure to hold the phy and virt addr of every TxDL. */
416typedef struct list_info_hold {
417 dma_addr_t list_phy_addr;
418 void *list_virt_addr;
419} list_info_hold_t;
420
421/* Rx descriptor structure */
422typedef struct _RxD_t {
423 u64 Host_Control; /* reserved for host */
424 u64 Control_1;
425#define RXD_OWN_XENA BIT(7)
426#define RXD_T_CODE (BIT(12)|BIT(13)|BIT(14)|BIT(15))
427#define RXD_FRAME_PROTO vBIT(0xFFFF,24,8)
428#define RXD_FRAME_PROTO_IPV4 BIT(27)
429#define RXD_FRAME_PROTO_IPV6 BIT(28)
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700430#define RXD_FRAME_IP_FRAG BIT(29)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431#define RXD_FRAME_PROTO_TCP BIT(30)
432#define RXD_FRAME_PROTO_UDP BIT(31)
433#define TCP_OR_UDP_FRAME (RXD_FRAME_PROTO_TCP | RXD_FRAME_PROTO_UDP)
434#define RXD_GET_L3_CKSUM(val) ((u16)(val>> 16) & 0xFFFF)
435#define RXD_GET_L4_CKSUM(val) ((u16)(val) & 0xFFFF)
436
437 u64 Control_2;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -0700438#define THE_RXD_MARK 0x3
439#define SET_RXD_MARKER vBIT(THE_RXD_MARK, 0, 2)
440#define GET_RXD_MARKER(ctrl) ((ctrl & SET_RXD_MARKER) >> 62)
441
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442#ifndef CONFIG_2BUFF_MODE
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700443#define MASK_BUFFER0_SIZE vBIT(0x3FFF,2,14)
444#define SET_BUFFER0_SIZE(val) vBIT(val,2,14)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445#else
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700446#define MASK_BUFFER0_SIZE vBIT(0xFF,2,14)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447#define MASK_BUFFER1_SIZE vBIT(0xFFFF,16,16)
448#define MASK_BUFFER2_SIZE vBIT(0xFFFF,32,16)
449#define SET_BUFFER0_SIZE(val) vBIT(val,8,8)
450#define SET_BUFFER1_SIZE(val) vBIT(val,16,16)
451#define SET_BUFFER2_SIZE(val) vBIT(val,32,16)
452#endif
453
454#define MASK_VLAN_TAG vBIT(0xFFFF,48,16)
455#define SET_VLAN_TAG(val) vBIT(val,48,16)
456#define SET_NUM_TAG(val) vBIT(val,16,32)
457
458#ifndef CONFIG_2BUFF_MODE
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700459#define RXD_GET_BUFFER0_SIZE(Control_2) (u64)((Control_2 & vBIT(0x3FFF,2,14)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460#else
461#define RXD_GET_BUFFER0_SIZE(Control_2) (u8)((Control_2 & MASK_BUFFER0_SIZE) \
462 >> 48)
463#define RXD_GET_BUFFER1_SIZE(Control_2) (u16)((Control_2 & MASK_BUFFER1_SIZE) \
464 >> 32)
465#define RXD_GET_BUFFER2_SIZE(Control_2) (u16)((Control_2 & MASK_BUFFER2_SIZE) \
466 >> 16)
467#define BUF0_LEN 40
468#define BUF1_LEN 1
469#endif
470
471 u64 Buffer0_ptr;
472#ifdef CONFIG_2BUFF_MODE
473 u64 Buffer1_ptr;
474 u64 Buffer2_ptr;
475#endif
476} RxD_t;
477
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700478/* Structure that represents the Rx descriptor block which contains
Linus Torvalds1da177e2005-04-16 15:20:36 -0700479 * 128 Rx descriptors.
480 */
481#ifndef CONFIG_2BUFF_MODE
482typedef struct _RxD_block {
483#define MAX_RXDS_PER_BLOCK 127
484 RxD_t rxd[MAX_RXDS_PER_BLOCK];
485
486 u64 reserved_0;
487#define END_OF_BLOCK 0xFEFFFFFFFFFFFFFFULL
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700488 u64 reserved_1; /* 0xFEFFFFFFFFFFFFFF to mark last
Linus Torvalds1da177e2005-04-16 15:20:36 -0700489 * Rxd in this blk */
490 u64 reserved_2_pNext_RxD_block; /* Logical ptr to next */
491 u64 pNext_RxD_Blk_physical; /* Buff0_ptr.In a 32 bit arch
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700492 * the upper 32 bits should
Linus Torvalds1da177e2005-04-16 15:20:36 -0700493 * be 0 */
494} RxD_block_t;
495#else
496typedef struct _RxD_block {
497#define MAX_RXDS_PER_BLOCK 85
498 RxD_t rxd[MAX_RXDS_PER_BLOCK];
499
500#define END_OF_BLOCK 0xFEFFFFFFFFFFFFFFULL
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700501 u64 reserved_1; /* 0xFEFFFFFFFFFFFFFF to mark last Rxd
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502 * in this blk */
503 u64 pNext_RxD_Blk_physical; /* Phy ponter to next blk. */
504} RxD_block_t;
505#define SIZE_OF_BLOCK 4096
506
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700507/* Structure to hold virtual addresses of Buf0 and Buf1 in
Linus Torvalds1da177e2005-04-16 15:20:36 -0700508 * 2buf mode. */
509typedef struct bufAdd {
510 void *ba_0_org;
511 void *ba_1_org;
512 void *ba_0;
513 void *ba_1;
514} buffAdd_t;
515#endif
516
517/* Structure which stores all the MAC control parameters */
518
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700519/* This structure stores the offset of the RxD in the ring
520 * from which the Rx Interrupt processor can start picking
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521 * up the RxDs for processing.
522 */
523typedef struct _rx_curr_get_info_t {
524 u32 block_index;
525 u32 offset;
526 u32 ring_len;
527} rx_curr_get_info_t;
528
529typedef rx_curr_get_info_t rx_curr_put_info_t;
530
531/* This structure stores the offset of the TxDl in the FIFO
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700532 * from which the Tx Interrupt processor can start picking
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533 * up the TxDLs for send complete interrupt processing.
534 */
535typedef struct {
536 u32 offset;
537 u32 fifo_len;
538} tx_curr_get_info_t;
539
540typedef tx_curr_get_info_t tx_curr_put_info_t;
541
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700542/* Structure that holds the Phy and virt addresses of the Blocks */
543typedef struct rx_block_info {
544 RxD_t *block_virt_addr;
545 dma_addr_t block_dma_addr;
546} rx_block_info_t;
547
548/* pre declaration of the nic structure */
549typedef struct s2io_nic nic_t;
550
551/* Ring specific structure */
552typedef struct ring_info {
553 /* The ring number */
554 int ring_no;
555
556 /*
557 * Place holders for the virtual and physical addresses of
558 * all the Rx Blocks
559 */
560 rx_block_info_t rx_blocks[MAX_RX_BLOCKS_PER_RING];
561 int block_count;
562 int pkt_cnt;
563
564 /*
565 * Put pointer info which indictes which RxD has to be replenished
566 * with a new buffer.
567 */
568 rx_curr_put_info_t rx_curr_put_info;
569
570 /*
571 * Get pointer info which indictes which is the last RxD that was
572 * processed by the driver.
573 */
574 rx_curr_get_info_t rx_curr_get_info;
575
576#ifndef CONFIG_S2IO_NAPI
577 /* Index to the absolute position of the put pointer of Rx ring */
578 int put_pos;
579#endif
580
581#ifdef CONFIG_2BUFF_MODE
582 /* Buffer Address store. */
583 buffAdd_t **ba;
584#endif
585 nic_t *nic;
586} ring_info_t;
587
588/* Fifo specific structure */
589typedef struct fifo_info {
590 /* FIFO number */
591 int fifo_no;
592
593 /* Maximum TxDs per TxDL */
594 int max_txds;
595
596 /* Place holder of all the TX List's Phy and Virt addresses. */
597 list_info_hold_t *list_info;
598
599 /*
600 * Current offset within the tx FIFO where driver would write
601 * new Tx frame
602 */
603 tx_curr_put_info_t tx_curr_put_info;
604
605 /*
606 * Current offset within tx FIFO from where the driver would start freeing
607 * the buffers
608 */
609 tx_curr_get_info_t tx_curr_get_info;
610
611 nic_t *nic;
612}fifo_info_t;
613
Linus Torvalds1da177e2005-04-16 15:20:36 -0700614/* Infomation related to the Tx and Rx FIFOs and Rings of Xena
615 * is maintained in this structure.
616 */
617typedef struct mac_info {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618/* tx side stuff */
619 /* logical pointer of start of each Tx FIFO */
620 TxFIFO_element_t __iomem *tx_FIFO_start[MAX_TX_FIFOS];
621
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700622 /* Fifo specific structure */
623 fifo_info_t fifos[MAX_TX_FIFOS];
624
625/* rx side stuff */
626 /* Ring specific structure */
627 ring_info_t rings[MAX_RX_RINGS];
628
629 u16 rmac_pause_time;
630 u16 mc_pause_threshold_q0q3;
631 u16 mc_pause_threshold_q4q7;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632
633 void *stats_mem; /* orignal pointer to allocated mem */
634 dma_addr_t stats_mem_phy; /* Physical address of the stat block */
635 u32 stats_mem_sz;
636 StatInfo_t *stats_info; /* Logical address of the stat block */
637} mac_info_t;
638
639/* structure representing the user defined MAC addresses */
640typedef struct {
641 char addr[ETH_ALEN];
642 int usage_cnt;
643} usr_addr_t;
644
Linus Torvalds1da177e2005-04-16 15:20:36 -0700645/* Default Tunable parameters of the NIC. */
646#define DEFAULT_FIFO_LEN 4096
647#define SMALL_RXD_CNT 30 * (MAX_RXDS_PER_BLOCK+1)
648#define LARGE_RXD_CNT 100 * (MAX_RXDS_PER_BLOCK+1)
649#define SMALL_BLK_CNT 30
650#define LARGE_BLK_CNT 100
651
652/* Structure representing one instance of the NIC */
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700653struct s2io_nic {
654#ifdef CONFIG_S2IO_NAPI
655 /*
656 * Count of packets to be processed in a given iteration, it will be indicated
657 * by the quota field of the device structure when NAPI is enabled.
658 */
659 int pkts_to_process;
660#endif
661 struct net_device *dev;
662 mac_info_t mac_control;
663 struct config_param config;
664 struct pci_dev *pdev;
665 void __iomem *bar0;
666 void __iomem *bar1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667#define MAX_MAC_SUPPORTED 16
668#define MAX_SUPPORTED_MULTICASTS MAX_MAC_SUPPORTED
669
670 macaddr_t def_mac_addr[MAX_MAC_SUPPORTED];
671 macaddr_t pre_mac_addr[MAX_MAC_SUPPORTED];
672
673 struct net_device_stats stats;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700674 int high_dma_flag;
675 int device_close_flag;
676 int device_enabled_once;
677
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700678 char name[50];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679 struct tasklet_struct task;
680 volatile unsigned long tasklet_status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700681
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -0700682 /* Timer that handles I/O errors/exceptions */
683 struct timer_list alarm_timer;
684
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700685 /* Space to back up the PCI config space */
686 u32 config_space[256 / sizeof(u32)];
687
Linus Torvalds1da177e2005-04-16 15:20:36 -0700688 atomic_t rx_bufs_left[MAX_RX_RINGS];
689
690 spinlock_t tx_lock;
691#ifndef CONFIG_S2IO_NAPI
692 spinlock_t put_lock;
693#endif
694
695#define PROMISC 1
696#define ALL_MULTI 2
697
698#define MAX_ADDRS_SUPPORTED 64
699 u16 usr_addr_count;
700 u16 mc_addr_count;
701 usr_addr_t usr_addrs[MAX_ADDRS_SUPPORTED];
702
703 u16 m_cast_flg;
704 u16 all_multi_pos;
705 u16 promisc_flg;
706
707 u16 tx_pkt_count;
708 u16 rx_pkt_count;
709 u16 tx_err_count;
710 u16 rx_err_count;
711
Linus Torvalds1da177e2005-04-16 15:20:36 -0700712 /* Id timer, used to blink NIC to physically identify NIC. */
713 struct timer_list id_timer;
714
715 /* Restart timer, used to restart NIC if the device is stuck and
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700716 * a schedule task that will set the correct Link state once the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700717 * NIC's PHY has stabilized after a state change.
718 */
719#ifdef INIT_TQUEUE
720 struct tq_struct rst_timer_task;
721 struct tq_struct set_link_task;
722#else
723 struct work_struct rst_timer_task;
724 struct work_struct set_link_task;
725#endif
726
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700727 /* Flag that can be used to turn on or turn off the Rx checksum
Linus Torvalds1da177e2005-04-16 15:20:36 -0700728 * offload feature.
729 */
730 int rx_csum;
731
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700732 /* after blink, the adapter must be restored with original
Linus Torvalds1da177e2005-04-16 15:20:36 -0700733 * values.
734 */
735 u64 adapt_ctrl_org;
736
737 /* Last known link state. */
738 u16 last_link_state;
739#define LINK_DOWN 1
740#define LINK_UP 2
741
Linus Torvalds1da177e2005-04-16 15:20:36 -0700742 int task_flag;
743#define CARD_DOWN 1
744#define CARD_UP 2
745 atomic_t card_state;
746 volatile unsigned long link_state;
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -0700747 struct vlan_group *vlgrp;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700748#define XFRAME_I_DEVICE 1
749#define XFRAME_II_DEVICE 2
750 u8 device_type;
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -0700751
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -0700752 spinlock_t rx_lock;
753 atomic_t isr_cnt;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700754};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700755
756#define RESET_ERROR 1;
757#define CMD_ERROR 2;
758
759/* OS related system calls */
760#ifndef readq
761static inline u64 readq(void __iomem *addr)
762{
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700763 u64 ret = 0;
764 ret = readl(addr + 4);
Andrew Morton7ef24b62005-08-25 17:14:46 -0700765 ret <<= 32;
766 ret |= readl(addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700767
768 return ret;
769}
770#endif
771
772#ifndef writeq
773static inline void writeq(u64 val, void __iomem *addr)
774{
775 writel((u32) (val), addr);
776 writel((u32) (val >> 32), (addr + 4));
777}
778
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700779/* In 32 bit modes, some registers have to be written in a
Linus Torvalds1da177e2005-04-16 15:20:36 -0700780 * particular order to expect correct hardware operation. The
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700781 * macro SPECIAL_REG_WRITE is used to perform such ordered
782 * writes. Defines UF (Upper First) and LF (Lower First) will
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783 * be used to specify the required write order.
784 */
785#define UF 1
786#define LF 2
787static inline void SPECIAL_REG_WRITE(u64 val, void __iomem *addr, int order)
788{
789 if (order == LF) {
790 writel((u32) (val), addr);
791 writel((u32) (val >> 32), (addr + 4));
792 } else {
793 writel((u32) (val >> 32), (addr + 4));
794 writel((u32) (val), addr);
795 }
796}
797#else
798#define SPECIAL_REG_WRITE(val, addr, dummy) writeq(val, addr)
799#endif
800
801/* Interrupt related values of Xena */
802
803#define ENABLE_INTRS 1
804#define DISABLE_INTRS 2
805
806/* Highest level interrupt blocks */
807#define TX_PIC_INTR (0x0001<<0)
808#define TX_DMA_INTR (0x0001<<1)
809#define TX_MAC_INTR (0x0001<<2)
810#define TX_XGXS_INTR (0x0001<<3)
811#define TX_TRAFFIC_INTR (0x0001<<4)
812#define RX_PIC_INTR (0x0001<<5)
813#define RX_DMA_INTR (0x0001<<6)
814#define RX_MAC_INTR (0x0001<<7)
815#define RX_XGXS_INTR (0x0001<<8)
816#define RX_TRAFFIC_INTR (0x0001<<9)
817#define MC_INTR (0x0001<<10)
818#define ENA_ALL_INTRS ( TX_PIC_INTR | \
819 TX_DMA_INTR | \
820 TX_MAC_INTR | \
821 TX_XGXS_INTR | \
822 TX_TRAFFIC_INTR | \
823 RX_PIC_INTR | \
824 RX_DMA_INTR | \
825 RX_MAC_INTR | \
826 RX_XGXS_INTR | \
827 RX_TRAFFIC_INTR | \
828 MC_INTR )
829
830/* Interrupt masks for the general interrupt mask register */
831#define DISABLE_ALL_INTRS 0xFFFFFFFFFFFFFFFFULL
832
833#define TXPIC_INT_M BIT(0)
834#define TXDMA_INT_M BIT(1)
835#define TXMAC_INT_M BIT(2)
836#define TXXGXS_INT_M BIT(3)
837#define TXTRAFFIC_INT_M BIT(8)
838#define PIC_RX_INT_M BIT(32)
839#define RXDMA_INT_M BIT(33)
840#define RXMAC_INT_M BIT(34)
841#define MC_INT_M BIT(35)
842#define RXXGXS_INT_M BIT(36)
843#define RXTRAFFIC_INT_M BIT(40)
844
845/* PIC level Interrupts TODO*/
846
847/* DMA level Inressupts */
848#define TXDMA_PFC_INT_M BIT(0)
849#define TXDMA_PCC_INT_M BIT(2)
850
851/* PFC block interrupts */
852#define PFC_MISC_ERR_1 BIT(0) /* Interrupt to indicate FIFO full */
853
854/* PCC block interrupts. */
855#define PCC_FB_ECC_ERR vBIT(0xff, 16, 8) /* Interrupt to indicate
856 PCC_FB_ECC Error. */
857
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700858#define RXD_GET_VLAN_TAG(Control_2) (u16)(Control_2 & MASK_VLAN_TAG)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700859/*
860 * Prototype declaration.
861 */
862static int __devinit s2io_init_nic(struct pci_dev *pdev,
863 const struct pci_device_id *pre);
864static void __devexit s2io_rem_nic(struct pci_dev *pdev);
865static int init_shared_mem(struct s2io_nic *sp);
866static void free_shared_mem(struct s2io_nic *sp);
867static int init_nic(struct s2io_nic *nic);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700868static void rx_intr_handler(ring_info_t *ring_data);
869static void tx_intr_handler(fifo_info_t *fifo_data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870static void alarm_intr_handler(struct s2io_nic *sp);
871
872static int s2io_starter(void);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700873void s2io_closer(void);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700874static void s2io_tx_watchdog(struct net_device *dev);
875static void s2io_tasklet(unsigned long dev_addr);
876static void s2io_set_multicast(struct net_device *dev);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700877static int rx_osm_handler(ring_info_t *ring_data, RxD_t * rxdp);
878void s2io_link(nic_t * sp, int link);
879void s2io_reset(nic_t * sp);
880#if defined(CONFIG_S2IO_NAPI)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700881static int s2io_poll(struct net_device *dev, int *budget);
882#endif
883static void s2io_init_pci(nic_t * sp);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700884int s2io_set_mac_addr(struct net_device *dev, u8 * addr);
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -0700885static void s2io_alarm_handle(unsigned long data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886static irqreturn_t s2io_isr(int irq, void *dev_id, struct pt_regs *regs);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700887static int verify_xena_quiescence(nic_t *sp, u64 val64, int flag);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700888static struct ethtool_ops netdev_ethtool_ops;
889static void s2io_set_link(unsigned long data);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700890int s2io_set_swapper(nic_t * sp);
891static void s2io_card_down(nic_t *nic);
892static int s2io_card_up(nic_t *nic);
893int get_xena_rev_id(struct pci_dev *pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700894#endif /* _S2IO_H */