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 */
420 /* Specifies if Tx Intr is UTILZ or PER_LIST type. */
423 u32 rx_ring_num; /*Number of receive rings */
424 #define MAX_RX_BLOCKS_PER_RING 150
426 struct rx_ring_config rx_cfg[MAX_RX_RINGS]; /*Per-Rx Ring config */
427 u8 bimodal; /*Flag for setting bimodal interrupts*/
429 #define HEADER_ETHERNET_II_802_3_SIZE 14
430 #define HEADER_802_2_SIZE 3
431 #define HEADER_SNAP_SIZE 5
432 #define HEADER_VLAN_SIZE 4
435 #define MAX_PYLD 1500
436 #define MAX_MTU (MAX_PYLD+18)
437 #define MAX_MTU_VLAN (MAX_PYLD+22)
438 #define MAX_PYLD_JUMBO 9600
439 #define MAX_MTU_JUMBO (MAX_PYLD_JUMBO+18)
440 #define MAX_MTU_JUMBO_VLAN (MAX_PYLD_JUMBO+22)
444 /* Structure representing MAC Addrs */
446 u8 mac_addr[ETH_ALEN];
449 /* Structure that represent every FIFO element in the BAR1
452 struct TxFIFO_element {
456 #define TX_FIFO_LAST_TXD_NUM( val) vBIT(val,0,8)
457 #define TX_FIFO_FIRST_LIST BIT(14)
458 #define TX_FIFO_LAST_LIST BIT(15)
459 #define TX_FIFO_FIRSTNLAST_LIST vBIT(3,14,2)
460 #define TX_FIFO_SPECIAL_FUNC BIT(23)
461 #define TX_FIFO_DS_NO_SNOOP BIT(31)
462 #define TX_FIFO_BUFF_NO_SNOOP BIT(30)
465 /* Tx descriptor structure */
469 #define TXD_LIST_OWN_XENA BIT(7)
470 #define TXD_T_CODE (BIT(12)|BIT(13)|BIT(14)|BIT(15))
471 #define TXD_T_CODE_OK(val) (|(val & TXD_T_CODE))
472 #define GET_TXD_T_CODE(val) ((val & TXD_T_CODE)<<12)
473 #define TXD_GATHER_CODE (BIT(22) | BIT(23))
474 #define TXD_GATHER_CODE_FIRST BIT(22)
475 #define TXD_GATHER_CODE_LAST BIT(23)
476 #define TXD_TCP_LSO_EN BIT(30)
477 #define TXD_UDP_COF_EN BIT(31)
478 #define TXD_UFO_EN BIT(31) | BIT(30)
479 #define TXD_TCP_LSO_MSS(val) vBIT(val,34,14)
480 #define TXD_UFO_MSS(val) vBIT(val,34,14)
481 #define TXD_BUFFER0_SIZE(val) vBIT(val,48,16)
484 #define TXD_TX_CKO_CONTROL (BIT(5)|BIT(6)|BIT(7))
485 #define TXD_TX_CKO_IPV4_EN BIT(5)
486 #define TXD_TX_CKO_TCP_EN BIT(6)
487 #define TXD_TX_CKO_UDP_EN BIT(7)
488 #define TXD_VLAN_ENABLE BIT(15)
489 #define TXD_VLAN_TAG(val) vBIT(val,16,16)
490 #define TXD_INT_NUMBER(val) vBIT(val,34,6)
491 #define TXD_INT_TYPE_PER_LIST BIT(47)
492 #define TXD_INT_TYPE_UTILZ BIT(46)
493 #define TXD_SET_MARKER vBIT(0x6,0,4)
496 u64 Host_Control; /* reserved for host */
499 /* Structure to hold the phy and virt addr of every TxDL. */
500 struct list_info_hold {
501 dma_addr_t list_phy_addr;
502 void *list_virt_addr;
505 /* Rx descriptor structure for 1 buffer mode */
507 u64 Host_Control; /* reserved for host */
509 #define RXD_OWN_XENA BIT(7)
510 #define RXD_T_CODE (BIT(12)|BIT(13)|BIT(14)|BIT(15))
511 #define RXD_FRAME_PROTO vBIT(0xFFFF,24,8)
512 #define RXD_FRAME_PROTO_IPV4 BIT(27)
513 #define RXD_FRAME_PROTO_IPV6 BIT(28)
514 #define RXD_FRAME_IP_FRAG BIT(29)
515 #define RXD_FRAME_PROTO_TCP BIT(30)
516 #define RXD_FRAME_PROTO_UDP BIT(31)
517 #define TCP_OR_UDP_FRAME (RXD_FRAME_PROTO_TCP | RXD_FRAME_PROTO_UDP)
518 #define RXD_GET_L3_CKSUM(val) ((u16)(val>> 16) & 0xFFFF)
519 #define RXD_GET_L4_CKSUM(val) ((u16)(val) & 0xFFFF)
522 #define THE_RXD_MARK 0x3
523 #define SET_RXD_MARKER vBIT(THE_RXD_MARK, 0, 2)
524 #define GET_RXD_MARKER(ctrl) ((ctrl & SET_RXD_MARKER) >> 62)
526 #define MASK_VLAN_TAG vBIT(0xFFFF,48,16)
527 #define SET_VLAN_TAG(val) vBIT(val,48,16)
528 #define SET_NUM_TAG(val) vBIT(val,16,32)
532 /* Rx descriptor structure for 1 buffer mode */
536 #define MASK_BUFFER0_SIZE_1 vBIT(0x3FFF,2,14)
537 #define SET_BUFFER0_SIZE_1(val) vBIT(val,2,14)
538 #define RXD_GET_BUFFER0_SIZE_1(_Control_2) \
539 (u16)((_Control_2 & MASK_BUFFER0_SIZE_1) >> 48)
542 /* Rx descriptor structure for 3 or 2 buffer mode */
547 #define MASK_BUFFER0_SIZE_3 vBIT(0xFF,2,14)
548 #define MASK_BUFFER1_SIZE_3 vBIT(0xFFFF,16,16)
549 #define MASK_BUFFER2_SIZE_3 vBIT(0xFFFF,32,16)
550 #define SET_BUFFER0_SIZE_3(val) vBIT(val,8,8)
551 #define SET_BUFFER1_SIZE_3(val) vBIT(val,16,16)
552 #define SET_BUFFER2_SIZE_3(val) vBIT(val,32,16)
553 #define RXD_GET_BUFFER0_SIZE_3(Control_2) \
554 (u8)((Control_2 & MASK_BUFFER0_SIZE_3) >> 48)
555 #define RXD_GET_BUFFER1_SIZE_3(Control_2) \
556 (u16)((Control_2 & MASK_BUFFER1_SIZE_3) >> 32)
557 #define RXD_GET_BUFFER2_SIZE_3(Control_2) \
558 (u16)((Control_2 & MASK_BUFFER2_SIZE_3) >> 16)
568 /* Structure that represents the Rx descriptor block which contains
569 * 128 Rx descriptors.
572 #define MAX_RXDS_PER_BLOCK_1 127
573 struct RxD1 rxd[MAX_RXDS_PER_BLOCK_1];
576 #define END_OF_BLOCK 0xFEFFFFFFFFFFFFFFULL
577 u64 reserved_1; /* 0xFEFFFFFFFFFFFFFF to mark last
579 u64 reserved_2_pNext_RxD_block; /* Logical ptr to next */
580 u64 pNext_RxD_Blk_physical; /* Buff0_ptr.In a 32 bit arch
581 * the upper 32 bits should
585 #define SIZE_OF_BLOCK 4096
587 #define RXD_MODE_1 0 /* One Buffer mode */
588 #define RXD_MODE_3B 1 /* Two Buffer mode */
590 /* Structure to hold virtual addresses of Buf0 and Buf1 in
599 /* Structure which stores all the MAC control parameters */
601 /* This structure stores the offset of the RxD in the ring
602 * from which the Rx Interrupt processor can start picking
603 * up the RxDs for processing.
605 struct rx_curr_get_info {
611 struct rx_curr_put_info {
617 /* This structure stores the offset of the TxDl in the FIFO
618 * from which the Tx Interrupt processor can start picking
619 * up the TxDLs for send complete interrupt processing.
621 struct tx_curr_get_info {
626 struct tx_curr_put_info {
636 /* Structure that holds the Phy and virt addresses of the Blocks */
637 struct rx_block_info {
638 void *block_virt_addr;
639 dma_addr_t block_dma_addr;
640 struct rxd_info *rxds;
643 /* Ring specific structure */
645 /* The ring number */
649 * Place holders for the virtual and physical addresses of
652 struct rx_block_info rx_blocks[MAX_RX_BLOCKS_PER_RING];
657 * Put pointer info which indictes which RxD has to be replenished
660 struct rx_curr_put_info rx_curr_put_info;
663 * Get pointer info which indictes which is the last RxD that was
664 * processed by the driver.
666 struct rx_curr_get_info rx_curr_get_info;
668 /* Index to the absolute position of the put pointer of Rx ring */
671 /* Buffer Address store. */
673 struct s2io_nic *nic;
676 /* Fifo specific structure */
681 /* Maximum TxDs per TxDL */
684 /* Place holder of all the TX List's Phy and Virt addresses. */
685 struct list_info_hold *list_info;
688 * Current offset within the tx FIFO where driver would write
691 struct tx_curr_put_info tx_curr_put_info;
694 * Current offset within tx FIFO from where the driver would start freeing
697 struct tx_curr_get_info tx_curr_get_info;
699 struct s2io_nic *nic;
702 /* Information related to the Tx and Rx FIFOs and Rings of Xena
703 * is maintained in this structure.
707 /* logical pointer of start of each Tx FIFO */
708 struct TxFIFO_element __iomem *tx_FIFO_start[MAX_TX_FIFOS];
710 /* Fifo specific structure */
711 struct fifo_info fifos[MAX_TX_FIFOS];
713 /* Save virtual address of TxD page with zero DMA addr(if any) */
714 void *zerodma_virt_addr;
717 /* Ring specific structure */
718 struct ring_info rings[MAX_RX_RINGS];
721 u16 mc_pause_threshold_q0q3;
722 u16 mc_pause_threshold_q4q7;
724 void *stats_mem; /* orignal pointer to allocated mem */
725 dma_addr_t stats_mem_phy; /* Physical address of the stat block */
727 struct stat_block *stats_info; /* Logical address of the stat block */
730 /* structure representing the user defined MAC addresses */
736 /* Default Tunable parameters of the NIC. */
737 #define DEFAULT_FIFO_0_LEN 4096
738 #define DEFAULT_FIFO_1_7_LEN 512
739 #define SMALL_BLK_CNT 30
740 #define LARGE_BLK_CNT 100
743 * Structure to keep track of the MSI-X vectors and the corresponding
744 * argument registered against each vector
746 #define MAX_REQUESTED_MSI_X 17
747 struct s2io_msix_entry
754 #define MSIX_FIFO_TYPE 1
755 #define MSIX_RING_TYPE 2
758 #define MSIX_REGISTERED_SUCCESS 0xAA
761 struct msix_info_st {
766 /* Data structure to represent a LRO session */
768 struct sk_buff *parent;
769 struct sk_buff *last_frag;
785 /* Structure representing one instance of the NIC */
789 * Count of packets to be processed in a given iteration, it will be indicated
790 * by the quota field of the device structure when NAPI is enabled.
793 struct net_device *dev;
794 struct napi_struct napi;
795 struct mac_info mac_control;
796 struct config_param config;
797 struct pci_dev *pdev;
800 #define MAX_MAC_SUPPORTED 16
801 #define MAX_SUPPORTED_MULTICASTS MAX_MAC_SUPPORTED
803 struct mac_addr def_mac_addr[MAX_MAC_SUPPORTED];
805 struct net_device_stats stats;
807 int device_enabled_once;
810 struct tasklet_struct task;
811 volatile unsigned long tasklet_status;
813 /* Timer that handles I/O errors/exceptions */
814 struct timer_list alarm_timer;
816 /* Space to back up the PCI config space */
817 u32 config_space[256 / sizeof(u32)];
819 atomic_t rx_bufs_left[MAX_RX_RINGS];
827 #define MAX_ADDRS_SUPPORTED 64
830 struct usr_addr usr_addrs[MAX_ADDRS_SUPPORTED];
836 /* Id timer, used to blink NIC to physically identify NIC. */
837 struct timer_list id_timer;
839 /* Restart timer, used to restart NIC if the device is stuck and
840 * a schedule task that will set the correct Link state once the
841 * NIC's PHY has stabilized after a state change.
843 struct work_struct rst_timer_task;
844 struct work_struct set_link_task;
846 /* Flag that can be used to turn on or turn off the Rx checksum
851 /* after blink, the adapter must be restored with original
856 /* Last known link state. */
862 unsigned long long start_time;
866 volatile unsigned long link_state;
867 struct vlan_group *vlgrp;
868 #define MSIX_FLG 0xA5
869 struct msix_entry *entries;
871 wait_queue_head_t msi_wait;
872 struct s2io_msix_entry *s2io_entries;
873 char desc[MAX_REQUESTED_MSI_X][25];
875 int avail_msix_vectors; /* No. of MSI-X vectors granted by system */
877 struct msix_info_st msix_info[0x3f];
879 #define XFRAME_I_DEVICE 1
880 #define XFRAME_II_DEVICE 2
883 #define MAX_LRO_SESSIONS 32
884 struct lro lro0_n[MAX_LRO_SESSIONS];
885 unsigned long clubbed_frms_cnt;
886 unsigned long sending_both;
888 u16 lro_max_aggr_per_sess;
897 #define VPD_STRING_LEN 80
898 u8 product_name[VPD_STRING_LEN];
899 u8 serial_num[VPD_STRING_LEN];
902 #define RESET_ERROR 1;
905 /* OS related system calls */
907 static inline u64 readq(void __iomem *addr)
910 ret = readl(addr + 4);
919 static inline void writeq(u64 val, void __iomem *addr)
921 writel((u32) (val), addr);
922 writel((u32) (val >> 32), (addr + 4));
927 * Some registers have to be written in a particular order to
928 * expect correct hardware operation. The macro SPECIAL_REG_WRITE
929 * is used to perform such ordered writes. Defines UF (Upper First)
930 * and LF (Lower First) will be used to specify the required write order.
934 static inline void SPECIAL_REG_WRITE(u64 val, void __iomem *addr, int order)
939 writel((u32) (val), addr);
941 writel((u32) (val >> 32), (addr + 4));
942 ret = readl(addr + 4);
944 writel((u32) (val >> 32), (addr + 4));
945 ret = readl(addr + 4);
946 writel((u32) (val), addr);
951 /* Interrupt related values of Xena */
953 #define ENABLE_INTRS 1
954 #define DISABLE_INTRS 2
956 /* Highest level interrupt blocks */
957 #define TX_PIC_INTR (0x0001<<0)
958 #define TX_DMA_INTR (0x0001<<1)
959 #define TX_MAC_INTR (0x0001<<2)
960 #define TX_XGXS_INTR (0x0001<<3)
961 #define TX_TRAFFIC_INTR (0x0001<<4)
962 #define RX_PIC_INTR (0x0001<<5)
963 #define RX_DMA_INTR (0x0001<<6)
964 #define RX_MAC_INTR (0x0001<<7)
965 #define RX_XGXS_INTR (0x0001<<8)
966 #define RX_TRAFFIC_INTR (0x0001<<9)
967 #define MC_INTR (0x0001<<10)
968 #define ENA_ALL_INTRS ( TX_PIC_INTR | \
980 /* Interrupt masks for the general interrupt mask register */
981 #define DISABLE_ALL_INTRS 0xFFFFFFFFFFFFFFFFULL
983 #define TXPIC_INT_M BIT(0)
984 #define TXDMA_INT_M BIT(1)
985 #define TXMAC_INT_M BIT(2)
986 #define TXXGXS_INT_M BIT(3)
987 #define TXTRAFFIC_INT_M BIT(8)
988 #define PIC_RX_INT_M BIT(32)
989 #define RXDMA_INT_M BIT(33)
990 #define RXMAC_INT_M BIT(34)
991 #define MC_INT_M BIT(35)
992 #define RXXGXS_INT_M BIT(36)
993 #define RXTRAFFIC_INT_M BIT(40)
995 /* PIC level Interrupts TODO*/
997 /* DMA level Inressupts */
998 #define TXDMA_PFC_INT_M BIT(0)
999 #define TXDMA_PCC_INT_M BIT(2)
1001 /* PFC block interrupts */
1002 #define PFC_MISC_ERR_1 BIT(0) /* Interrupt to indicate FIFO full */
1004 /* PCC block interrupts. */
1005 #define PCC_FB_ECC_ERR vBIT(0xff, 16, 8) /* Interrupt to indicate
1006 PCC_FB_ECC Error. */
1008 #define RXD_GET_VLAN_TAG(Control_2) (u16)(Control_2 & MASK_VLAN_TAG)
1010 * Prototype declaration.
1012 static int __devinit s2io_init_nic(struct pci_dev *pdev,
1013 const struct pci_device_id *pre);
1014 static void __devexit s2io_rem_nic(struct pci_dev *pdev);
1015 static int init_shared_mem(struct s2io_nic *sp);
1016 static void free_shared_mem(struct s2io_nic *sp);
1017 static int init_nic(struct s2io_nic *nic);
1018 static void rx_intr_handler(struct ring_info *ring_data);
1019 static void tx_intr_handler(struct fifo_info *fifo_data);
1020 static void alarm_intr_handler(struct s2io_nic *sp);
1022 static int s2io_starter(void);
1023 static void s2io_closer(void);
1024 static void s2io_tx_watchdog(struct net_device *dev);
1025 static void s2io_tasklet(unsigned long dev_addr);
1026 static void s2io_set_multicast(struct net_device *dev);
1027 static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp);
1028 static void s2io_link(struct s2io_nic * sp, int link);
1029 static void s2io_reset(struct s2io_nic * sp);
1030 static int s2io_poll(struct napi_struct *napi, int budget);
1031 static void s2io_init_pci(struct s2io_nic * sp);
1032 static int s2io_set_mac_addr(struct net_device *dev, u8 * addr);
1033 static void s2io_alarm_handle(unsigned long data);
1035 s2io_msix_ring_handle(int irq, void *dev_id);
1037 s2io_msix_fifo_handle(int irq, void *dev_id);
1038 static irqreturn_t s2io_isr(int irq, void *dev_id);
1039 static int verify_xena_quiescence(struct s2io_nic *sp);
1040 static const struct ethtool_ops netdev_ethtool_ops;
1041 static void s2io_set_link(struct work_struct *work);
1042 static int s2io_set_swapper(struct s2io_nic * sp);
1043 static void s2io_card_down(struct s2io_nic *nic);
1044 static int s2io_card_up(struct s2io_nic *nic);
1045 static int wait_for_cmd_complete(void __iomem *addr, u64 busy_bit,
1047 static int s2io_add_isr(struct s2io_nic * sp);
1048 static void s2io_rem_isr(struct s2io_nic * sp);
1050 static void restore_xmsi_data(struct s2io_nic *nic);
1053 s2io_club_tcp_session(u8 *buffer, u8 **tcp, u32 *tcp_len, struct lro **lro,
1054 struct RxD_t *rxdp, struct s2io_nic *sp);
1055 static void clear_lro_session(struct lro *lro);
1056 static void queue_rx_frame(struct sk_buff *skb);
1057 static void update_L3L4_header(struct s2io_nic *sp, struct lro *lro);
1058 static void lro_append_pkt(struct s2io_nic *sp, struct lro *lro,
1059 struct sk_buff *skb, u32 tcp_len);
1060 static int rts_ds_steer(struct s2io_nic *nic, u8 ds_codepoint, u8 ring);
1062 static pci_ers_result_t s2io_io_error_detected(struct pci_dev *pdev,
1063 pci_channel_state_t state);
1064 static pci_ers_result_t s2io_io_slot_reset(struct pci_dev *pdev);
1065 static void s2io_io_resume(struct pci_dev *pdev);
1067 #define s2io_tcp_mss(skb) skb_shinfo(skb)->gso_size
1068 #define s2io_udp_mss(skb) skb_shinfo(skb)->gso_size
1069 #define s2io_offload_type(skb) skb_shinfo(skb)->gso_type
1071 #define S2IO_PARM_INT(X, def_val) \
1072 static unsigned int X = def_val;\
1073 module_param(X , uint, 0);
1075 #endif /* _S2IO_H */