1 /************************************************************************
2 * s2io.h: A Linux PCI-X Ethernet driver for Neterion 10GbE Server NIC
3 * Copyright(c) 2002-2007 Neterion Inc.
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 ************************************************************************/
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)
33 #define S2IO_MINUS_ONE 0xFFFFFFFFFFFFFFFFULL
34 #define S2IO_MAX_PCI_CONFIG_SPACE_REINIT 100
35 #define S2IO_BIT_RESET 1
36 #define S2IO_BIT_SET 2
37 #define CHECKBIT(value, nbit) (value & (1 << nbit))
39 /* Maximum time to flicker LED when asked to identify NIC using ethtool */
40 #define MAX_FLICKER_TIME 60000 /* 60 Secs */
42 /* Maximum outstanding splits to be configured into xena. */
44 XENA_ONE_SPLIT_TRANSACTION = 0,
45 XENA_TWO_SPLIT_TRANSACTION = 1,
46 XENA_THREE_SPLIT_TRANSACTION = 2,
47 XENA_FOUR_SPLIT_TRANSACTION = 3,
48 XENA_EIGHT_SPLIT_TRANSACTION = 4,
49 XENA_TWELVE_SPLIT_TRANSACTION = 5,
50 XENA_SIXTEEN_SPLIT_TRANSACTION = 6,
51 XENA_THIRTYTWO_SPLIT_TRANSACTION = 7
53 #define XENA_MAX_OUTSTANDING_SPLITS(n) (n << 4)
55 /* OS concerned variables and constants */
56 #define WATCH_DOG_TIMEOUT 15*HZ
58 #define ALIGN_SIZE 127
59 #define PCIX_COMMAND_REGISTER 0x62
62 * Debug related variables.
64 /* different debug levels. */
71 /* Global variable that defines the present debug level of the driver. */
72 static int debug_level = ERR_DBG;
74 /* DEBUG message print. */
75 #define DBG_PRINT(dbg_level, args...) if(!(debug_level<dbg_level)) printk(args)
77 #ifndef DMA_ERROR_CODE
78 #define DMA_ERROR_CODE (~(dma_addr_t)0x0)
81 /* Protocol assist features of the NIC */
82 #define L3_CKSUM_OK 0xFFFF
83 #define L4_CKSUM_OK 0xFFFF
84 #define S2IO_JUMBO_SIZE 9600
86 /* Driver statistics maintained by driver */
88 unsigned long long single_ecc_errs;
89 unsigned long long double_ecc_errs;
90 unsigned long long parity_err_cnt;
91 unsigned long long serious_err_cnt;
92 unsigned long long soft_reset_cnt;
93 unsigned long long fifo_full_cnt;
94 unsigned long long ring_full_cnt;
96 unsigned long long clubbed_frms_cnt;
97 unsigned long long sending_both;
98 unsigned long long outof_sequence_pkts;
99 unsigned long long flush_max_pkts;
100 unsigned long long sum_avg_pkts_aggregated;
101 unsigned long long num_aggregations;
102 /* Other statistics */
103 unsigned long long mem_alloc_fail_cnt;
104 unsigned long long pci_map_fail_cnt;
105 unsigned long long watchdog_timer_cnt;
106 unsigned long long mem_allocated;
107 unsigned long long mem_freed;
108 unsigned long long link_up_cnt;
109 unsigned long long link_down_cnt;
110 unsigned long long link_up_time;
111 unsigned long long link_down_time;
113 /* Transfer Code statistics */
114 unsigned long long tx_buf_abort_cnt;
115 unsigned long long tx_desc_abort_cnt;
116 unsigned long long tx_parity_err_cnt;
117 unsigned long long tx_link_loss_cnt;
118 unsigned long long tx_list_proc_err_cnt;
120 unsigned long long rx_parity_err_cnt;
121 unsigned long long rx_abort_cnt;
122 unsigned long long rx_parity_abort_cnt;
123 unsigned long long rx_rda_fail_cnt;
124 unsigned long long rx_unkn_prot_cnt;
125 unsigned long long rx_fcs_err_cnt;
126 unsigned long long rx_buf_size_err_cnt;
127 unsigned long long rx_rxd_corrupt_cnt;
128 unsigned long long rx_unkn_err_cnt;
131 /* Xpak releated alarm and warnings */
133 u64 alarm_transceiver_temp_high;
134 u64 alarm_transceiver_temp_low;
135 u64 alarm_laser_bias_current_high;
136 u64 alarm_laser_bias_current_low;
137 u64 alarm_laser_output_power_high;
138 u64 alarm_laser_output_power_low;
139 u64 warn_transceiver_temp_high;
140 u64 warn_transceiver_temp_low;
141 u64 warn_laser_bias_current_high;
142 u64 warn_laser_bias_current_low;
143 u64 warn_laser_output_power_high;
144 u64 warn_laser_output_power_low;
146 u32 xpak_timer_count;
150 /* The statistics block of Xena */
152 /* Tx MAC statistics counters. */
153 __le32 tmac_data_octets;
155 __le64 tmac_drop_frms;
156 __le32 tmac_bcst_frms;
157 __le32 tmac_mcst_frms;
158 __le64 tmac_pause_ctrl_frms;
159 __le32 tmac_ucst_frms;
160 __le32 tmac_ttl_octets;
161 __le32 tmac_any_err_frms;
162 __le32 tmac_nucst_frms;
163 __le64 tmac_ttl_less_fb_octets;
164 __le64 tmac_vld_ip_octets;
173 /* Rx MAC Statistics counters. */
174 __le32 rmac_data_octets;
175 __le32 rmac_vld_frms;
176 __le64 rmac_fcs_err_frms;
177 __le64 rmac_drop_frms;
178 __le32 rmac_vld_bcst_frms;
179 __le32 rmac_vld_mcst_frms;
180 __le32 rmac_out_rng_len_err_frms;
181 __le32 rmac_in_rng_len_err_frms;
182 __le64 rmac_long_frms;
183 __le64 rmac_pause_ctrl_frms;
184 __le64 rmac_unsup_ctrl_frms;
185 __le32 rmac_accepted_ucst_frms;
186 __le32 rmac_ttl_octets;
187 __le32 rmac_discarded_frms;
188 __le32 rmac_accepted_nucst_frms;
190 __le32 rmac_drop_events;
191 __le64 rmac_ttl_less_fb_octets;
192 __le64 rmac_ttl_frms;
194 __le32 rmac_usized_frms;
196 __le32 rmac_frag_frms;
197 __le32 rmac_osized_frms;
199 __le32 rmac_jabber_frms;
200 __le64 rmac_ttl_64_frms;
201 __le64 rmac_ttl_65_127_frms;
203 __le64 rmac_ttl_128_255_frms;
204 __le64 rmac_ttl_256_511_frms;
206 __le64 rmac_ttl_512_1023_frms;
207 __le64 rmac_ttl_1024_1518_frms;
210 __le64 rmac_ip_octets;
212 __le32 rmac_hdr_err_ip;
216 __le32 rmac_err_drp_udp;
218 __le64 rmac_xgmii_err_sym;
236 __le32 rmac_pause_cnt;
237 __le64 rmac_xgmii_data_err_cnt;
238 __le64 rmac_xgmii_ctrl_err_cnt;
240 __le32 rmac_accepted_ip;
242 /* PCI/PCI-X Read transaction statistics. */
243 __le32 new_rd_req_cnt;
246 __le32 new_rd_req_rtry_cnt;
248 /* PCI/PCI-X Write/Read transaction statistics. */
250 __le32 wr_rtry_rd_ack_cnt;
251 __le32 new_wr_req_rtry_cnt;
252 __le32 new_wr_req_cnt;
256 /* PCI/PCI-X Write / DMA Transaction statistics. */
258 __le32 rd_rtry_wr_ack_cnt;
266 /* Tx MAC statistics overflow counters. */
267 __le32 tmac_data_octets_oflow;
268 __le32 tmac_frms_oflow;
269 __le32 tmac_bcst_frms_oflow;
270 __le32 tmac_mcst_frms_oflow;
271 __le32 tmac_ucst_frms_oflow;
272 __le32 tmac_ttl_octets_oflow;
273 __le32 tmac_any_err_frms_oflow;
274 __le32 tmac_nucst_frms_oflow;
275 __le64 tmac_vlan_frms;
276 __le32 tmac_drop_ip_oflow;
277 __le32 tmac_vld_ip_oflow;
278 __le32 tmac_rst_tcp_oflow;
279 __le32 tmac_icmp_oflow;
280 __le32 tpa_unknown_protocol;
281 __le32 tmac_udp_oflow;
283 __le32 tpa_parse_failure;
285 /* Rx MAC Statistics overflow counters. */
286 __le32 rmac_data_octets_oflow;
287 __le32 rmac_vld_frms_oflow;
288 __le32 rmac_vld_bcst_frms_oflow;
289 __le32 rmac_vld_mcst_frms_oflow;
290 __le32 rmac_accepted_ucst_frms_oflow;
291 __le32 rmac_ttl_octets_oflow;
292 __le32 rmac_discarded_frms_oflow;
293 __le32 rmac_accepted_nucst_frms_oflow;
294 __le32 rmac_usized_frms_oflow;
295 __le32 rmac_drop_events_oflow;
296 __le32 rmac_frag_frms_oflow;
297 __le32 rmac_osized_frms_oflow;
298 __le32 rmac_ip_oflow;
299 __le32 rmac_jabber_frms_oflow;
300 __le32 rmac_icmp_oflow;
301 __le32 rmac_drop_ip_oflow;
302 __le32 rmac_err_drp_udp_oflow;
303 __le32 rmac_udp_oflow;
305 __le32 rmac_pause_cnt_oflow;
306 __le64 rmac_ttl_1519_4095_frms;
307 __le64 rmac_ttl_4096_8191_frms;
308 __le64 rmac_ttl_8192_max_frms;
309 __le64 rmac_ttl_gt_max_frms;
310 __le64 rmac_osized_alt_frms;
311 __le64 rmac_jabber_alt_frms;
312 __le64 rmac_gt_max_alt_frms;
313 __le64 rmac_vlan_frms;
314 __le32 rmac_len_discard;
315 __le32 rmac_fcs_discard;
316 __le32 rmac_pf_discard;
317 __le32 rmac_da_discard;
318 __le32 rmac_red_discard;
319 __le32 rmac_rts_discard;
321 __le32 rmac_ingm_full_discard;
323 __le32 rmac_accepted_ip_oflow;
325 __le32 link_fault_cnt;
327 struct swStat sw_stat;
328 struct xpakStat xpak_stat;
331 /* Default value for 'vlan_strip_tag' configuration parameter */
332 #define NO_STRIP_IN_PROMISC 2
335 * Structures representing different init time configuration
336 * parameters of the NIC.
339 #define MAX_TX_FIFOS 8
340 #define MAX_RX_RINGS 8
342 #define MAX_RX_DESC_1 (MAX_RX_RINGS * MAX_RX_BLOCKS_PER_RING * 127 )
343 #define MAX_RX_DESC_2 (MAX_RX_RINGS * MAX_RX_BLOCKS_PER_RING * 85 )
344 #define MAX_RX_DESC_3 (MAX_RX_RINGS * MAX_RX_BLOCKS_PER_RING * 85 )
345 #define MAX_TX_DESC (MAX_AVAILABLE_TXDS)
347 /* FIFO mappings for all possible number of fifos configured */
348 static int fifo_map[][MAX_TX_FIFOS] = {
349 {0, 0, 0, 0, 0, 0, 0, 0},
350 {0, 0, 0, 0, 1, 1, 1, 1},
351 {0, 0, 0, 1, 1, 1, 2, 2},
352 {0, 0, 1, 1, 2, 2, 3, 3},
353 {0, 0, 1, 1, 2, 2, 3, 4},
354 {0, 0, 1, 1, 2, 3, 4, 5},
355 {0, 0, 1, 2, 3, 4, 5, 6},
356 {0, 1, 2, 3, 4, 5, 6, 7},
359 /* Maintains Per FIFO related information. */
360 struct tx_fifo_config {
361 #define MAX_AVAILABLE_TXDS 8192
362 u32 fifo_len; /* specifies len of FIFO upto 8192, ie no of TxDLs */
363 /* Priority definition */
364 #define TX_FIFO_PRI_0 0 /*Highest */
365 #define TX_FIFO_PRI_1 1
366 #define TX_FIFO_PRI_2 2
367 #define TX_FIFO_PRI_3 3
368 #define TX_FIFO_PRI_4 4
369 #define TX_FIFO_PRI_5 5
370 #define TX_FIFO_PRI_6 6
371 #define TX_FIFO_PRI_7 7 /*lowest */
372 u8 fifo_priority; /* specifies pointer level for FIFO */
373 /* user should not set twos fifos with same pri */
375 #define NO_SNOOP_TXD 0x01
376 #define NO_SNOOP_TXD_BUFFER 0x02
380 /* Maintains per Ring related information */
381 struct rx_ring_config {
382 u32 num_rxd; /*No of RxDs per Rx Ring */
383 #define RX_RING_PRI_0 0 /* highest */
384 #define RX_RING_PRI_1 1
385 #define RX_RING_PRI_2 2
386 #define RX_RING_PRI_3 3
387 #define RX_RING_PRI_4 4
388 #define RX_RING_PRI_5 5
389 #define RX_RING_PRI_6 6
390 #define RX_RING_PRI_7 7 /* lowest */
392 u8 ring_priority; /*Specifies service priority of ring */
393 /* OSM should not set any two rings with same priority */
394 u8 ring_org; /*Organization of ring */
395 #define RING_ORG_BUFF1 0x01
396 #define RX_RING_ORG_BUFF3 0x03
397 #define RX_RING_ORG_BUFF5 0x05
400 #define NO_SNOOP_RXD 0x01
401 #define NO_SNOOP_RXD_BUFFER 0x02
404 /* This structure provides contains values of the tunable parameters
407 struct config_param {
409 u32 tx_fifo_num; /*Number of Tx FIFOs */
411 u8 fifo_mapping[MAX_TX_FIFOS];
412 struct tx_fifo_config tx_cfg[MAX_TX_FIFOS]; /*Per-Tx FIFO config */
413 u32 max_txds; /*Max no. of Tx buffer descriptor per TxDL */
415 /* Specifies if Tx Intr is UTILZ or PER_LIST type. */
418 u32 rx_ring_num; /*Number of receive rings */
419 #define MAX_RX_BLOCKS_PER_RING 150
421 struct rx_ring_config rx_cfg[MAX_RX_RINGS]; /*Per-Rx Ring config */
422 u8 bimodal; /*Flag for setting bimodal interrupts*/
424 #define HEADER_ETHERNET_II_802_3_SIZE 14
425 #define HEADER_802_2_SIZE 3
426 #define HEADER_SNAP_SIZE 5
427 #define HEADER_VLAN_SIZE 4
430 #define MAX_PYLD 1500
431 #define MAX_MTU (MAX_PYLD+18)
432 #define MAX_MTU_VLAN (MAX_PYLD+22)
433 #define MAX_PYLD_JUMBO 9600
434 #define MAX_MTU_JUMBO (MAX_PYLD_JUMBO+18)
435 #define MAX_MTU_JUMBO_VLAN (MAX_PYLD_JUMBO+22)
439 /* Structure representing MAC Addrs */
441 u8 mac_addr[ETH_ALEN];
444 /* Structure that represent every FIFO element in the BAR1
447 struct TxFIFO_element {
451 #define TX_FIFO_LAST_TXD_NUM( val) vBIT(val,0,8)
452 #define TX_FIFO_FIRST_LIST BIT(14)
453 #define TX_FIFO_LAST_LIST BIT(15)
454 #define TX_FIFO_FIRSTNLAST_LIST vBIT(3,14,2)
455 #define TX_FIFO_SPECIAL_FUNC BIT(23)
456 #define TX_FIFO_DS_NO_SNOOP BIT(31)
457 #define TX_FIFO_BUFF_NO_SNOOP BIT(30)
460 /* Tx descriptor structure */
464 #define TXD_LIST_OWN_XENA BIT(7)
465 #define TXD_T_CODE (BIT(12)|BIT(13)|BIT(14)|BIT(15))
466 #define TXD_T_CODE_OK(val) (|(val & TXD_T_CODE))
467 #define GET_TXD_T_CODE(val) ((val & TXD_T_CODE)<<12)
468 #define TXD_GATHER_CODE (BIT(22) | BIT(23))
469 #define TXD_GATHER_CODE_FIRST BIT(22)
470 #define TXD_GATHER_CODE_LAST BIT(23)
471 #define TXD_TCP_LSO_EN BIT(30)
472 #define TXD_UDP_COF_EN BIT(31)
473 #define TXD_UFO_EN BIT(31) | BIT(30)
474 #define TXD_TCP_LSO_MSS(val) vBIT(val,34,14)
475 #define TXD_UFO_MSS(val) vBIT(val,34,14)
476 #define TXD_BUFFER0_SIZE(val) vBIT(val,48,16)
479 #define TXD_TX_CKO_CONTROL (BIT(5)|BIT(6)|BIT(7))
480 #define TXD_TX_CKO_IPV4_EN BIT(5)
481 #define TXD_TX_CKO_TCP_EN BIT(6)
482 #define TXD_TX_CKO_UDP_EN BIT(7)
483 #define TXD_VLAN_ENABLE BIT(15)
484 #define TXD_VLAN_TAG(val) vBIT(val,16,16)
485 #define TXD_INT_NUMBER(val) vBIT(val,34,6)
486 #define TXD_INT_TYPE_PER_LIST BIT(47)
487 #define TXD_INT_TYPE_UTILZ BIT(46)
488 #define TXD_SET_MARKER vBIT(0x6,0,4)
491 u64 Host_Control; /* reserved for host */
494 /* Structure to hold the phy and virt addr of every TxDL. */
495 struct list_info_hold {
496 dma_addr_t list_phy_addr;
497 void *list_virt_addr;
500 /* Rx descriptor structure for 1 buffer mode */
502 u64 Host_Control; /* reserved for host */
504 #define RXD_OWN_XENA BIT(7)
505 #define RXD_T_CODE (BIT(12)|BIT(13)|BIT(14)|BIT(15))
506 #define RXD_FRAME_PROTO vBIT(0xFFFF,24,8)
507 #define RXD_FRAME_PROTO_IPV4 BIT(27)
508 #define RXD_FRAME_PROTO_IPV6 BIT(28)
509 #define RXD_FRAME_IP_FRAG BIT(29)
510 #define RXD_FRAME_PROTO_TCP BIT(30)
511 #define RXD_FRAME_PROTO_UDP BIT(31)
512 #define TCP_OR_UDP_FRAME (RXD_FRAME_PROTO_TCP | RXD_FRAME_PROTO_UDP)
513 #define RXD_GET_L3_CKSUM(val) ((u16)(val>> 16) & 0xFFFF)
514 #define RXD_GET_L4_CKSUM(val) ((u16)(val) & 0xFFFF)
517 #define THE_RXD_MARK 0x3
518 #define SET_RXD_MARKER vBIT(THE_RXD_MARK, 0, 2)
519 #define GET_RXD_MARKER(ctrl) ((ctrl & SET_RXD_MARKER) >> 62)
521 #define MASK_VLAN_TAG vBIT(0xFFFF,48,16)
522 #define SET_VLAN_TAG(val) vBIT(val,48,16)
523 #define SET_NUM_TAG(val) vBIT(val,16,32)
527 /* Rx descriptor structure for 1 buffer mode */
531 #define MASK_BUFFER0_SIZE_1 vBIT(0x3FFF,2,14)
532 #define SET_BUFFER0_SIZE_1(val) vBIT(val,2,14)
533 #define RXD_GET_BUFFER0_SIZE_1(_Control_2) \
534 (u16)((_Control_2 & MASK_BUFFER0_SIZE_1) >> 48)
537 /* Rx descriptor structure for 3 or 2 buffer mode */
542 #define MASK_BUFFER0_SIZE_3 vBIT(0xFF,2,14)
543 #define MASK_BUFFER1_SIZE_3 vBIT(0xFFFF,16,16)
544 #define MASK_BUFFER2_SIZE_3 vBIT(0xFFFF,32,16)
545 #define SET_BUFFER0_SIZE_3(val) vBIT(val,8,8)
546 #define SET_BUFFER1_SIZE_3(val) vBIT(val,16,16)
547 #define SET_BUFFER2_SIZE_3(val) vBIT(val,32,16)
548 #define RXD_GET_BUFFER0_SIZE_3(Control_2) \
549 (u8)((Control_2 & MASK_BUFFER0_SIZE_3) >> 48)
550 #define RXD_GET_BUFFER1_SIZE_3(Control_2) \
551 (u16)((Control_2 & MASK_BUFFER1_SIZE_3) >> 32)
552 #define RXD_GET_BUFFER2_SIZE_3(Control_2) \
553 (u16)((Control_2 & MASK_BUFFER2_SIZE_3) >> 16)
563 /* Structure that represents the Rx descriptor block which contains
564 * 128 Rx descriptors.
567 #define MAX_RXDS_PER_BLOCK_1 127
568 struct RxD1 rxd[MAX_RXDS_PER_BLOCK_1];
571 #define END_OF_BLOCK 0xFEFFFFFFFFFFFFFFULL
572 u64 reserved_1; /* 0xFEFFFFFFFFFFFFFF to mark last
574 u64 reserved_2_pNext_RxD_block; /* Logical ptr to next */
575 u64 pNext_RxD_Blk_physical; /* Buff0_ptr.In a 32 bit arch
576 * the upper 32 bits should
580 #define SIZE_OF_BLOCK 4096
582 #define RXD_MODE_1 0 /* One Buffer mode */
583 #define RXD_MODE_3B 1 /* Two Buffer mode */
585 /* Structure to hold virtual addresses of Buf0 and Buf1 in
594 /* Structure which stores all the MAC control parameters */
596 /* This structure stores the offset of the RxD in the ring
597 * from which the Rx Interrupt processor can start picking
598 * up the RxDs for processing.
600 struct rx_curr_get_info {
606 struct rx_curr_put_info {
612 /* This structure stores the offset of the TxDl in the FIFO
613 * from which the Tx Interrupt processor can start picking
614 * up the TxDLs for send complete interrupt processing.
616 struct tx_curr_get_info {
621 struct tx_curr_put_info {
631 /* Structure that holds the Phy and virt addresses of the Blocks */
632 struct rx_block_info {
633 void *block_virt_addr;
634 dma_addr_t block_dma_addr;
635 struct rxd_info *rxds;
638 /* Ring specific structure */
640 /* The ring number */
644 * Place holders for the virtual and physical addresses of
647 struct rx_block_info rx_blocks[MAX_RX_BLOCKS_PER_RING];
652 * Put pointer info which indictes which RxD has to be replenished
655 struct rx_curr_put_info rx_curr_put_info;
658 * Get pointer info which indictes which is the last RxD that was
659 * processed by the driver.
661 struct rx_curr_get_info rx_curr_get_info;
663 /* Index to the absolute position of the put pointer of Rx ring */
666 /* Buffer Address store. */
668 struct s2io_nic *nic;
671 /* Fifo specific structure */
676 /* Maximum TxDs per TxDL */
679 /* Place holder of all the TX List's Phy and Virt addresses. */
680 struct list_info_hold *list_info;
683 * Current offset within the tx FIFO where driver would write
686 struct tx_curr_put_info tx_curr_put_info;
689 * Current offset within tx FIFO from where the driver would start freeing
692 struct tx_curr_get_info tx_curr_get_info;
694 struct s2io_nic *nic;
697 /* Information related to the Tx and Rx FIFOs and Rings of Xena
698 * is maintained in this structure.
702 /* logical pointer of start of each Tx FIFO */
703 struct TxFIFO_element __iomem *tx_FIFO_start[MAX_TX_FIFOS];
705 /* Fifo specific structure */
706 struct fifo_info fifos[MAX_TX_FIFOS];
708 /* Save virtual address of TxD page with zero DMA addr(if any) */
709 void *zerodma_virt_addr;
712 /* Ring specific structure */
713 struct ring_info rings[MAX_RX_RINGS];
716 u16 mc_pause_threshold_q0q3;
717 u16 mc_pause_threshold_q4q7;
719 void *stats_mem; /* orignal pointer to allocated mem */
720 dma_addr_t stats_mem_phy; /* Physical address of the stat block */
722 struct stat_block *stats_info; /* Logical address of the stat block */
725 /* structure representing the user defined MAC addresses */
731 /* Default Tunable parameters of the NIC. */
732 #define DEFAULT_FIFO_0_LEN 4096
733 #define DEFAULT_FIFO_1_7_LEN 512
734 #define SMALL_BLK_CNT 30
735 #define LARGE_BLK_CNT 100
738 * Structure to keep track of the MSI-X vectors and the corresponding
739 * argument registered against each vector
741 #define MAX_REQUESTED_MSI_X 17
742 struct s2io_msix_entry
749 #define MSIX_FIFO_TYPE 1
750 #define MSIX_RING_TYPE 2
753 #define MSIX_REGISTERED_SUCCESS 0xAA
756 struct msix_info_st {
761 /* Data structure to represent a LRO session */
763 struct sk_buff *parent;
764 struct sk_buff *last_frag;
780 /* Structure representing one instance of the NIC */
784 * Count of packets to be processed in a given iteration, it will be indicated
785 * by the quota field of the device structure when NAPI is enabled.
788 struct net_device *dev;
789 struct mac_info mac_control;
790 struct config_param config;
791 struct pci_dev *pdev;
794 #define MAX_MAC_SUPPORTED 16
795 #define MAX_SUPPORTED_MULTICASTS MAX_MAC_SUPPORTED
797 struct mac_addr def_mac_addr[MAX_MAC_SUPPORTED];
799 struct net_device_stats stats;
801 int device_enabled_once;
804 struct tasklet_struct task;
805 volatile unsigned long tasklet_status;
807 /* Timer that handles I/O errors/exceptions */
808 struct timer_list alarm_timer;
810 /* Space to back up the PCI config space */
811 u32 config_space[256 / sizeof(u32)];
813 atomic_t rx_bufs_left[MAX_RX_RINGS];
821 #define MAX_ADDRS_SUPPORTED 64
824 struct usr_addr usr_addrs[MAX_ADDRS_SUPPORTED];
830 /* Id timer, used to blink NIC to physically identify NIC. */
831 struct timer_list id_timer;
833 /* Restart timer, used to restart NIC if the device is stuck and
834 * a schedule task that will set the correct Link state once the
835 * NIC's PHY has stabilized after a state change.
837 struct work_struct rst_timer_task;
838 struct work_struct set_link_task;
840 /* Flag that can be used to turn on or turn off the Rx checksum
845 /* after blink, the adapter must be restored with original
850 /* Last known link state. */
856 unsigned long long start_time;
860 volatile unsigned long link_state;
861 struct vlan_group *vlgrp;
862 #define MSIX_FLG 0xA5
863 struct msix_entry *entries;
864 struct s2io_msix_entry *s2io_entries;
865 char desc[MAX_REQUESTED_MSI_X][25];
867 int avail_msix_vectors; /* No. of MSI-X vectors granted by system */
869 struct msix_info_st msix_info[0x3f];
871 #define XFRAME_I_DEVICE 1
872 #define XFRAME_II_DEVICE 2
875 #define MAX_LRO_SESSIONS 32
876 struct lro lro0_n[MAX_LRO_SESSIONS];
877 unsigned long clubbed_frms_cnt;
878 unsigned long sending_both;
880 u16 lro_max_aggr_per_sess;
889 #define VPD_STRING_LEN 80
890 u8 product_name[VPD_STRING_LEN];
891 u8 serial_num[VPD_STRING_LEN];
894 #define RESET_ERROR 1;
897 /* OS related system calls */
899 static inline u64 readq(void __iomem *addr)
902 ret = readl(addr + 4);
911 static inline void writeq(u64 val, void __iomem *addr)
913 writel((u32) (val), addr);
914 writel((u32) (val >> 32), (addr + 4));
919 * Some registers have to be written in a particular order to
920 * expect correct hardware operation. The macro SPECIAL_REG_WRITE
921 * is used to perform such ordered writes. Defines UF (Upper First)
922 * and LF (Lower First) will be used to specify the required write order.
926 static inline void SPECIAL_REG_WRITE(u64 val, void __iomem *addr, int order)
931 writel((u32) (val), addr);
933 writel((u32) (val >> 32), (addr + 4));
934 ret = readl(addr + 4);
936 writel((u32) (val >> 32), (addr + 4));
937 ret = readl(addr + 4);
938 writel((u32) (val), addr);
943 /* Interrupt related values of Xena */
945 #define ENABLE_INTRS 1
946 #define DISABLE_INTRS 2
948 /* Highest level interrupt blocks */
949 #define TX_PIC_INTR (0x0001<<0)
950 #define TX_DMA_INTR (0x0001<<1)
951 #define TX_MAC_INTR (0x0001<<2)
952 #define TX_XGXS_INTR (0x0001<<3)
953 #define TX_TRAFFIC_INTR (0x0001<<4)
954 #define RX_PIC_INTR (0x0001<<5)
955 #define RX_DMA_INTR (0x0001<<6)
956 #define RX_MAC_INTR (0x0001<<7)
957 #define RX_XGXS_INTR (0x0001<<8)
958 #define RX_TRAFFIC_INTR (0x0001<<9)
959 #define MC_INTR (0x0001<<10)
960 #define ENA_ALL_INTRS ( TX_PIC_INTR | \
972 /* Interrupt masks for the general interrupt mask register */
973 #define DISABLE_ALL_INTRS 0xFFFFFFFFFFFFFFFFULL
975 #define TXPIC_INT_M BIT(0)
976 #define TXDMA_INT_M BIT(1)
977 #define TXMAC_INT_M BIT(2)
978 #define TXXGXS_INT_M BIT(3)
979 #define TXTRAFFIC_INT_M BIT(8)
980 #define PIC_RX_INT_M BIT(32)
981 #define RXDMA_INT_M BIT(33)
982 #define RXMAC_INT_M BIT(34)
983 #define MC_INT_M BIT(35)
984 #define RXXGXS_INT_M BIT(36)
985 #define RXTRAFFIC_INT_M BIT(40)
987 /* PIC level Interrupts TODO*/
989 /* DMA level Inressupts */
990 #define TXDMA_PFC_INT_M BIT(0)
991 #define TXDMA_PCC_INT_M BIT(2)
993 /* PFC block interrupts */
994 #define PFC_MISC_ERR_1 BIT(0) /* Interrupt to indicate FIFO full */
996 /* PCC block interrupts. */
997 #define PCC_FB_ECC_ERR vBIT(0xff, 16, 8) /* Interrupt to indicate
1000 #define RXD_GET_VLAN_TAG(Control_2) (u16)(Control_2 & MASK_VLAN_TAG)
1002 * Prototype declaration.
1004 static int __devinit s2io_init_nic(struct pci_dev *pdev,
1005 const struct pci_device_id *pre);
1006 static void __devexit s2io_rem_nic(struct pci_dev *pdev);
1007 static int init_shared_mem(struct s2io_nic *sp);
1008 static void free_shared_mem(struct s2io_nic *sp);
1009 static int init_nic(struct s2io_nic *nic);
1010 static void rx_intr_handler(struct ring_info *ring_data);
1011 static void tx_intr_handler(struct fifo_info *fifo_data);
1012 static void alarm_intr_handler(struct s2io_nic *sp);
1014 static int s2io_starter(void);
1015 static void s2io_closer(void);
1016 static void s2io_tx_watchdog(struct net_device *dev);
1017 static void s2io_tasklet(unsigned long dev_addr);
1018 static void s2io_set_multicast(struct net_device *dev);
1019 static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp);
1020 static void s2io_link(struct s2io_nic * sp, int link);
1021 static void s2io_reset(struct s2io_nic * sp);
1022 static int s2io_poll(struct net_device *dev, int *budget);
1023 static void s2io_init_pci(struct s2io_nic * sp);
1024 static int s2io_set_mac_addr(struct net_device *dev, u8 * addr);
1025 static void s2io_alarm_handle(unsigned long data);
1027 s2io_msix_ring_handle(int irq, void *dev_id);
1029 s2io_msix_fifo_handle(int irq, void *dev_id);
1030 static irqreturn_t s2io_isr(int irq, void *dev_id);
1031 static int verify_xena_quiescence(struct s2io_nic *sp);
1032 static const struct ethtool_ops netdev_ethtool_ops;
1033 static void s2io_set_link(struct work_struct *work);
1034 static int s2io_set_swapper(struct s2io_nic * sp);
1035 static void s2io_card_down(struct s2io_nic *nic);
1036 static int s2io_card_up(struct s2io_nic *nic);
1037 static int wait_for_cmd_complete(void __iomem *addr, u64 busy_bit,
1039 static int s2io_add_isr(struct s2io_nic * sp);
1040 static void s2io_rem_isr(struct s2io_nic * sp);
1042 static void restore_xmsi_data(struct s2io_nic *nic);
1045 s2io_club_tcp_session(u8 *buffer, u8 **tcp, u32 *tcp_len, struct lro **lro,
1046 struct RxD_t *rxdp, struct s2io_nic *sp);
1047 static void clear_lro_session(struct lro *lro);
1048 static void queue_rx_frame(struct sk_buff *skb);
1049 static void update_L3L4_header(struct s2io_nic *sp, struct lro *lro);
1050 static void lro_append_pkt(struct s2io_nic *sp, struct lro *lro,
1051 struct sk_buff *skb, u32 tcp_len);
1052 static int rts_ds_steer(struct s2io_nic *nic, u8 ds_codepoint, u8 ring);
1054 static pci_ers_result_t s2io_io_error_detected(struct pci_dev *pdev,
1055 pci_channel_state_t state);
1056 static pci_ers_result_t s2io_io_slot_reset(struct pci_dev *pdev);
1057 static void s2io_io_resume(struct pci_dev *pdev);
1059 #define s2io_tcp_mss(skb) skb_shinfo(skb)->gso_size
1060 #define s2io_udp_mss(skb) skb_shinfo(skb)->gso_size
1061 #define s2io_offload_type(skb) skb_shinfo(skb)->gso_type
1063 #define S2IO_PARM_INT(X, def_val) \
1064 static unsigned int X = def_val;\
1065 module_param(X , uint, 0);
1067 #endif /* _S2IO_H */