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 /* Protocol assist features of the NIC */
78 #define L3_CKSUM_OK 0xFFFF
79 #define L4_CKSUM_OK 0xFFFF
80 #define S2IO_JUMBO_SIZE 9600
82 /* Driver statistics maintained by driver */
84 unsigned long long single_ecc_errs;
85 unsigned long long double_ecc_errs;
86 unsigned long long parity_err_cnt;
87 unsigned long long serious_err_cnt;
88 unsigned long long soft_reset_cnt;
89 unsigned long long fifo_full_cnt;
90 unsigned long long ring_full_cnt;
92 unsigned long long clubbed_frms_cnt;
93 unsigned long long sending_both;
94 unsigned long long outof_sequence_pkts;
95 unsigned long long flush_max_pkts;
96 unsigned long long sum_avg_pkts_aggregated;
97 unsigned long long num_aggregations;
98 /* Other statistics */
99 unsigned long long mem_alloc_fail_cnt;
100 unsigned long long watchdog_timer_cnt;
103 /* Xpak releated alarm and warnings */
105 u64 alarm_transceiver_temp_high;
106 u64 alarm_transceiver_temp_low;
107 u64 alarm_laser_bias_current_high;
108 u64 alarm_laser_bias_current_low;
109 u64 alarm_laser_output_power_high;
110 u64 alarm_laser_output_power_low;
111 u64 warn_transceiver_temp_high;
112 u64 warn_transceiver_temp_low;
113 u64 warn_laser_bias_current_high;
114 u64 warn_laser_bias_current_low;
115 u64 warn_laser_output_power_high;
116 u64 warn_laser_output_power_low;
118 u32 xpak_timer_count;
122 /* The statistics block of Xena */
124 /* Tx MAC statistics counters. */
125 __le32 tmac_data_octets;
127 __le64 tmac_drop_frms;
128 __le32 tmac_bcst_frms;
129 __le32 tmac_mcst_frms;
130 __le64 tmac_pause_ctrl_frms;
131 __le32 tmac_ucst_frms;
132 __le32 tmac_ttl_octets;
133 __le32 tmac_any_err_frms;
134 __le32 tmac_nucst_frms;
135 __le64 tmac_ttl_less_fb_octets;
136 __le64 tmac_vld_ip_octets;
145 /* Rx MAC Statistics counters. */
146 __le32 rmac_data_octets;
147 __le32 rmac_vld_frms;
148 __le64 rmac_fcs_err_frms;
149 __le64 rmac_drop_frms;
150 __le32 rmac_vld_bcst_frms;
151 __le32 rmac_vld_mcst_frms;
152 __le32 rmac_out_rng_len_err_frms;
153 __le32 rmac_in_rng_len_err_frms;
154 __le64 rmac_long_frms;
155 __le64 rmac_pause_ctrl_frms;
156 __le64 rmac_unsup_ctrl_frms;
157 __le32 rmac_accepted_ucst_frms;
158 __le32 rmac_ttl_octets;
159 __le32 rmac_discarded_frms;
160 __le32 rmac_accepted_nucst_frms;
162 __le32 rmac_drop_events;
163 __le64 rmac_ttl_less_fb_octets;
164 __le64 rmac_ttl_frms;
166 __le32 rmac_usized_frms;
168 __le32 rmac_frag_frms;
169 __le32 rmac_osized_frms;
171 __le32 rmac_jabber_frms;
172 __le64 rmac_ttl_64_frms;
173 __le64 rmac_ttl_65_127_frms;
175 __le64 rmac_ttl_128_255_frms;
176 __le64 rmac_ttl_256_511_frms;
178 __le64 rmac_ttl_512_1023_frms;
179 __le64 rmac_ttl_1024_1518_frms;
182 __le64 rmac_ip_octets;
184 __le32 rmac_hdr_err_ip;
188 __le32 rmac_err_drp_udp;
190 __le64 rmac_xgmii_err_sym;
208 __le32 rmac_pause_cnt;
209 __le64 rmac_xgmii_data_err_cnt;
210 __le64 rmac_xgmii_ctrl_err_cnt;
212 __le32 rmac_accepted_ip;
214 /* PCI/PCI-X Read transaction statistics. */
215 __le32 new_rd_req_cnt;
218 __le32 new_rd_req_rtry_cnt;
220 /* PCI/PCI-X Write/Read transaction statistics. */
222 __le32 wr_rtry_rd_ack_cnt;
223 __le32 new_wr_req_rtry_cnt;
224 __le32 new_wr_req_cnt;
228 /* PCI/PCI-X Write / DMA Transaction statistics. */
230 __le32 rd_rtry_wr_ack_cnt;
238 /* Tx MAC statistics overflow counters. */
239 __le32 tmac_data_octets_oflow;
240 __le32 tmac_frms_oflow;
241 __le32 tmac_bcst_frms_oflow;
242 __le32 tmac_mcst_frms_oflow;
243 __le32 tmac_ucst_frms_oflow;
244 __le32 tmac_ttl_octets_oflow;
245 __le32 tmac_any_err_frms_oflow;
246 __le32 tmac_nucst_frms_oflow;
247 __le64 tmac_vlan_frms;
248 __le32 tmac_drop_ip_oflow;
249 __le32 tmac_vld_ip_oflow;
250 __le32 tmac_rst_tcp_oflow;
251 __le32 tmac_icmp_oflow;
252 __le32 tpa_unknown_protocol;
253 __le32 tmac_udp_oflow;
255 __le32 tpa_parse_failure;
257 /* Rx MAC Statistics overflow counters. */
258 __le32 rmac_data_octets_oflow;
259 __le32 rmac_vld_frms_oflow;
260 __le32 rmac_vld_bcst_frms_oflow;
261 __le32 rmac_vld_mcst_frms_oflow;
262 __le32 rmac_accepted_ucst_frms_oflow;
263 __le32 rmac_ttl_octets_oflow;
264 __le32 rmac_discarded_frms_oflow;
265 __le32 rmac_accepted_nucst_frms_oflow;
266 __le32 rmac_usized_frms_oflow;
267 __le32 rmac_drop_events_oflow;
268 __le32 rmac_frag_frms_oflow;
269 __le32 rmac_osized_frms_oflow;
270 __le32 rmac_ip_oflow;
271 __le32 rmac_jabber_frms_oflow;
272 __le32 rmac_icmp_oflow;
273 __le32 rmac_drop_ip_oflow;
274 __le32 rmac_err_drp_udp_oflow;
275 __le32 rmac_udp_oflow;
277 __le32 rmac_pause_cnt_oflow;
278 __le64 rmac_ttl_1519_4095_frms;
279 __le64 rmac_ttl_4096_8191_frms;
280 __le64 rmac_ttl_8192_max_frms;
281 __le64 rmac_ttl_gt_max_frms;
282 __le64 rmac_osized_alt_frms;
283 __le64 rmac_jabber_alt_frms;
284 __le64 rmac_gt_max_alt_frms;
285 __le64 rmac_vlan_frms;
286 __le32 rmac_len_discard;
287 __le32 rmac_fcs_discard;
288 __le32 rmac_pf_discard;
289 __le32 rmac_da_discard;
290 __le32 rmac_red_discard;
291 __le32 rmac_rts_discard;
293 __le32 rmac_ingm_full_discard;
295 __le32 rmac_accepted_ip_oflow;
297 __le32 link_fault_cnt;
299 struct swStat sw_stat;
300 struct xpakStat xpak_stat;
303 /* Default value for 'vlan_strip_tag' configuration parameter */
304 #define NO_STRIP_IN_PROMISC 2
307 * Structures representing different init time configuration
308 * parameters of the NIC.
311 #define MAX_TX_FIFOS 8
312 #define MAX_RX_RINGS 8
314 #define MAX_RX_DESC_1 (MAX_RX_RINGS * MAX_RX_BLOCKS_PER_RING * 127 )
315 #define MAX_RX_DESC_2 (MAX_RX_RINGS * MAX_RX_BLOCKS_PER_RING * 85 )
316 #define MAX_RX_DESC_3 (MAX_RX_RINGS * MAX_RX_BLOCKS_PER_RING * 85 )
317 #define MAX_TX_DESC (MAX_AVAILABLE_TXDS)
319 /* FIFO mappings for all possible number of fifos configured */
320 static int fifo_map[][MAX_TX_FIFOS] = {
321 {0, 0, 0, 0, 0, 0, 0, 0},
322 {0, 0, 0, 0, 1, 1, 1, 1},
323 {0, 0, 0, 1, 1, 1, 2, 2},
324 {0, 0, 1, 1, 2, 2, 3, 3},
325 {0, 0, 1, 1, 2, 2, 3, 4},
326 {0, 0, 1, 1, 2, 3, 4, 5},
327 {0, 0, 1, 2, 3, 4, 5, 6},
328 {0, 1, 2, 3, 4, 5, 6, 7},
331 /* Maintains Per FIFO related information. */
332 struct tx_fifo_config {
333 #define MAX_AVAILABLE_TXDS 8192
334 u32 fifo_len; /* specifies len of FIFO upto 8192, ie no of TxDLs */
335 /* Priority definition */
336 #define TX_FIFO_PRI_0 0 /*Highest */
337 #define TX_FIFO_PRI_1 1
338 #define TX_FIFO_PRI_2 2
339 #define TX_FIFO_PRI_3 3
340 #define TX_FIFO_PRI_4 4
341 #define TX_FIFO_PRI_5 5
342 #define TX_FIFO_PRI_6 6
343 #define TX_FIFO_PRI_7 7 /*lowest */
344 u8 fifo_priority; /* specifies pointer level for FIFO */
345 /* user should not set twos fifos with same pri */
347 #define NO_SNOOP_TXD 0x01
348 #define NO_SNOOP_TXD_BUFFER 0x02
352 /* Maintains per Ring related information */
353 struct rx_ring_config {
354 u32 num_rxd; /*No of RxDs per Rx Ring */
355 #define RX_RING_PRI_0 0 /* highest */
356 #define RX_RING_PRI_1 1
357 #define RX_RING_PRI_2 2
358 #define RX_RING_PRI_3 3
359 #define RX_RING_PRI_4 4
360 #define RX_RING_PRI_5 5
361 #define RX_RING_PRI_6 6
362 #define RX_RING_PRI_7 7 /* lowest */
364 u8 ring_priority; /*Specifies service priority of ring */
365 /* OSM should not set any two rings with same priority */
366 u8 ring_org; /*Organization of ring */
367 #define RING_ORG_BUFF1 0x01
368 #define RX_RING_ORG_BUFF3 0x03
369 #define RX_RING_ORG_BUFF5 0x05
372 #define NO_SNOOP_RXD 0x01
373 #define NO_SNOOP_RXD_BUFFER 0x02
376 /* This structure provides contains values of the tunable parameters
379 struct config_param {
381 u32 tx_fifo_num; /*Number of Tx FIFOs */
383 u8 fifo_mapping[MAX_TX_FIFOS];
384 struct tx_fifo_config tx_cfg[MAX_TX_FIFOS]; /*Per-Tx FIFO config */
385 u32 max_txds; /*Max no. of Tx buffer descriptor per TxDL */
387 /* Specifies if Tx Intr is UTILZ or PER_LIST type. */
390 u32 rx_ring_num; /*Number of receive rings */
391 #define MAX_RX_BLOCKS_PER_RING 150
393 struct rx_ring_config rx_cfg[MAX_RX_RINGS]; /*Per-Rx Ring config */
394 u8 bimodal; /*Flag for setting bimodal interrupts*/
396 #define HEADER_ETHERNET_II_802_3_SIZE 14
397 #define HEADER_802_2_SIZE 3
398 #define HEADER_SNAP_SIZE 5
399 #define HEADER_VLAN_SIZE 4
402 #define MAX_PYLD 1500
403 #define MAX_MTU (MAX_PYLD+18)
404 #define MAX_MTU_VLAN (MAX_PYLD+22)
405 #define MAX_PYLD_JUMBO 9600
406 #define MAX_MTU_JUMBO (MAX_PYLD_JUMBO+18)
407 #define MAX_MTU_JUMBO_VLAN (MAX_PYLD_JUMBO+22)
411 /* Structure representing MAC Addrs */
413 u8 mac_addr[ETH_ALEN];
416 /* Structure that represent every FIFO element in the BAR1
419 struct TxFIFO_element {
423 #define TX_FIFO_LAST_TXD_NUM( val) vBIT(val,0,8)
424 #define TX_FIFO_FIRST_LIST BIT(14)
425 #define TX_FIFO_LAST_LIST BIT(15)
426 #define TX_FIFO_FIRSTNLAST_LIST vBIT(3,14,2)
427 #define TX_FIFO_SPECIAL_FUNC BIT(23)
428 #define TX_FIFO_DS_NO_SNOOP BIT(31)
429 #define TX_FIFO_BUFF_NO_SNOOP BIT(30)
432 /* Tx descriptor structure */
436 #define TXD_LIST_OWN_XENA BIT(7)
437 #define TXD_T_CODE (BIT(12)|BIT(13)|BIT(14)|BIT(15))
438 #define TXD_T_CODE_OK(val) (|(val & TXD_T_CODE))
439 #define GET_TXD_T_CODE(val) ((val & TXD_T_CODE)<<12)
440 #define TXD_GATHER_CODE (BIT(22) | BIT(23))
441 #define TXD_GATHER_CODE_FIRST BIT(22)
442 #define TXD_GATHER_CODE_LAST BIT(23)
443 #define TXD_TCP_LSO_EN BIT(30)
444 #define TXD_UDP_COF_EN BIT(31)
445 #define TXD_UFO_EN BIT(31) | BIT(30)
446 #define TXD_TCP_LSO_MSS(val) vBIT(val,34,14)
447 #define TXD_UFO_MSS(val) vBIT(val,34,14)
448 #define TXD_BUFFER0_SIZE(val) vBIT(val,48,16)
451 #define TXD_TX_CKO_CONTROL (BIT(5)|BIT(6)|BIT(7))
452 #define TXD_TX_CKO_IPV4_EN BIT(5)
453 #define TXD_TX_CKO_TCP_EN BIT(6)
454 #define TXD_TX_CKO_UDP_EN BIT(7)
455 #define TXD_VLAN_ENABLE BIT(15)
456 #define TXD_VLAN_TAG(val) vBIT(val,16,16)
457 #define TXD_INT_NUMBER(val) vBIT(val,34,6)
458 #define TXD_INT_TYPE_PER_LIST BIT(47)
459 #define TXD_INT_TYPE_UTILZ BIT(46)
460 #define TXD_SET_MARKER vBIT(0x6,0,4)
463 u64 Host_Control; /* reserved for host */
466 /* Structure to hold the phy and virt addr of every TxDL. */
467 struct list_info_hold {
468 dma_addr_t list_phy_addr;
469 void *list_virt_addr;
472 /* Rx descriptor structure for 1 buffer mode */
474 u64 Host_Control; /* reserved for host */
476 #define RXD_OWN_XENA BIT(7)
477 #define RXD_T_CODE (BIT(12)|BIT(13)|BIT(14)|BIT(15))
478 #define RXD_FRAME_PROTO vBIT(0xFFFF,24,8)
479 #define RXD_FRAME_PROTO_IPV4 BIT(27)
480 #define RXD_FRAME_PROTO_IPV6 BIT(28)
481 #define RXD_FRAME_IP_FRAG BIT(29)
482 #define RXD_FRAME_PROTO_TCP BIT(30)
483 #define RXD_FRAME_PROTO_UDP BIT(31)
484 #define TCP_OR_UDP_FRAME (RXD_FRAME_PROTO_TCP | RXD_FRAME_PROTO_UDP)
485 #define RXD_GET_L3_CKSUM(val) ((u16)(val>> 16) & 0xFFFF)
486 #define RXD_GET_L4_CKSUM(val) ((u16)(val) & 0xFFFF)
489 #define THE_RXD_MARK 0x3
490 #define SET_RXD_MARKER vBIT(THE_RXD_MARK, 0, 2)
491 #define GET_RXD_MARKER(ctrl) ((ctrl & SET_RXD_MARKER) >> 62)
493 #define MASK_VLAN_TAG vBIT(0xFFFF,48,16)
494 #define SET_VLAN_TAG(val) vBIT(val,48,16)
495 #define SET_NUM_TAG(val) vBIT(val,16,32)
499 /* Rx descriptor structure for 1 buffer mode */
503 #define MASK_BUFFER0_SIZE_1 vBIT(0x3FFF,2,14)
504 #define SET_BUFFER0_SIZE_1(val) vBIT(val,2,14)
505 #define RXD_GET_BUFFER0_SIZE_1(_Control_2) \
506 (u16)((_Control_2 & MASK_BUFFER0_SIZE_1) >> 48)
509 /* Rx descriptor structure for 3 or 2 buffer mode */
514 #define MASK_BUFFER0_SIZE_3 vBIT(0xFF,2,14)
515 #define MASK_BUFFER1_SIZE_3 vBIT(0xFFFF,16,16)
516 #define MASK_BUFFER2_SIZE_3 vBIT(0xFFFF,32,16)
517 #define SET_BUFFER0_SIZE_3(val) vBIT(val,8,8)
518 #define SET_BUFFER1_SIZE_3(val) vBIT(val,16,16)
519 #define SET_BUFFER2_SIZE_3(val) vBIT(val,32,16)
520 #define RXD_GET_BUFFER0_SIZE_3(Control_2) \
521 (u8)((Control_2 & MASK_BUFFER0_SIZE_3) >> 48)
522 #define RXD_GET_BUFFER1_SIZE_3(Control_2) \
523 (u16)((Control_2 & MASK_BUFFER1_SIZE_3) >> 32)
524 #define RXD_GET_BUFFER2_SIZE_3(Control_2) \
525 (u16)((Control_2 & MASK_BUFFER2_SIZE_3) >> 16)
535 /* Structure that represents the Rx descriptor block which contains
536 * 128 Rx descriptors.
539 #define MAX_RXDS_PER_BLOCK_1 127
540 struct RxD1 rxd[MAX_RXDS_PER_BLOCK_1];
543 #define END_OF_BLOCK 0xFEFFFFFFFFFFFFFFULL
544 u64 reserved_1; /* 0xFEFFFFFFFFFFFFFF to mark last
546 u64 reserved_2_pNext_RxD_block; /* Logical ptr to next */
547 u64 pNext_RxD_Blk_physical; /* Buff0_ptr.In a 32 bit arch
548 * the upper 32 bits should
552 #define SIZE_OF_BLOCK 4096
554 #define RXD_MODE_1 0 /* One Buffer mode */
555 #define RXD_MODE_3A 1 /* Three Buffer mode */
556 #define RXD_MODE_3B 2 /* Two Buffer mode */
558 /* Structure to hold virtual addresses of Buf0 and Buf1 in
567 /* Structure which stores all the MAC control parameters */
569 /* This structure stores the offset of the RxD in the ring
570 * from which the Rx Interrupt processor can start picking
571 * up the RxDs for processing.
573 struct rx_curr_get_info {
579 struct rx_curr_put_info {
585 /* This structure stores the offset of the TxDl in the FIFO
586 * from which the Tx Interrupt processor can start picking
587 * up the TxDLs for send complete interrupt processing.
589 struct tx_curr_get_info {
594 struct tx_curr_put_info {
604 /* Structure that holds the Phy and virt addresses of the Blocks */
605 struct rx_block_info {
606 void *block_virt_addr;
607 dma_addr_t block_dma_addr;
608 struct rxd_info *rxds;
611 /* Ring specific structure */
613 /* The ring number */
617 * Place holders for the virtual and physical addresses of
620 struct rx_block_info rx_blocks[MAX_RX_BLOCKS_PER_RING];
625 * Put pointer info which indictes which RxD has to be replenished
628 struct rx_curr_put_info rx_curr_put_info;
631 * Get pointer info which indictes which is the last RxD that was
632 * processed by the driver.
634 struct rx_curr_get_info rx_curr_get_info;
636 /* Index to the absolute position of the put pointer of Rx ring */
639 /* Buffer Address store. */
641 struct s2io_nic *nic;
644 /* Fifo specific structure */
649 /* Maximum TxDs per TxDL */
652 /* Place holder of all the TX List's Phy and Virt addresses. */
653 struct list_info_hold *list_info;
656 * Current offset within the tx FIFO where driver would write
659 struct tx_curr_put_info tx_curr_put_info;
662 * Current offset within tx FIFO from where the driver would start freeing
665 struct tx_curr_get_info tx_curr_get_info;
667 struct s2io_nic *nic;
670 /* Information related to the Tx and Rx FIFOs and Rings of Xena
671 * is maintained in this structure.
675 /* logical pointer of start of each Tx FIFO */
676 struct TxFIFO_element __iomem *tx_FIFO_start[MAX_TX_FIFOS];
678 /* Fifo specific structure */
679 struct fifo_info fifos[MAX_TX_FIFOS];
681 /* Save virtual address of TxD page with zero DMA addr(if any) */
682 void *zerodma_virt_addr;
685 /* Ring specific structure */
686 struct ring_info rings[MAX_RX_RINGS];
689 u16 mc_pause_threshold_q0q3;
690 u16 mc_pause_threshold_q4q7;
692 void *stats_mem; /* orignal pointer to allocated mem */
693 dma_addr_t stats_mem_phy; /* Physical address of the stat block */
695 struct stat_block *stats_info; /* Logical address of the stat block */
698 /* structure representing the user defined MAC addresses */
704 /* Default Tunable parameters of the NIC. */
705 #define DEFAULT_FIFO_0_LEN 4096
706 #define DEFAULT_FIFO_1_7_LEN 512
707 #define SMALL_BLK_CNT 30
708 #define LARGE_BLK_CNT 100
711 * Structure to keep track of the MSI-X vectors and the corresponding
712 * argument registered against each vector
714 #define MAX_REQUESTED_MSI_X 17
715 struct s2io_msix_entry
722 #define MSIX_FIFO_TYPE 1
723 #define MSIX_RING_TYPE 2
726 #define MSIX_REGISTERED_SUCCESS 0xAA
729 struct msix_info_st {
734 /* Data structure to represent a LRO session */
736 struct sk_buff *parent;
737 struct sk_buff *last_frag;
753 /* Structure representing one instance of the NIC */
757 * Count of packets to be processed in a given iteration, it will be indicated
758 * by the quota field of the device structure when NAPI is enabled.
761 struct net_device *dev;
762 struct mac_info mac_control;
763 struct config_param config;
764 struct pci_dev *pdev;
767 #define MAX_MAC_SUPPORTED 16
768 #define MAX_SUPPORTED_MULTICASTS MAX_MAC_SUPPORTED
770 struct mac_addr def_mac_addr[MAX_MAC_SUPPORTED];
772 struct net_device_stats stats;
774 int device_close_flag;
775 int device_enabled_once;
778 struct tasklet_struct task;
779 volatile unsigned long tasklet_status;
781 /* Timer that handles I/O errors/exceptions */
782 struct timer_list alarm_timer;
784 /* Space to back up the PCI config space */
785 u32 config_space[256 / sizeof(u32)];
787 atomic_t rx_bufs_left[MAX_RX_RINGS];
795 #define MAX_ADDRS_SUPPORTED 64
798 struct usr_addr usr_addrs[MAX_ADDRS_SUPPORTED];
804 /* Id timer, used to blink NIC to physically identify NIC. */
805 struct timer_list id_timer;
807 /* Restart timer, used to restart NIC if the device is stuck and
808 * a schedule task that will set the correct Link state once the
809 * NIC's PHY has stabilized after a state change.
811 struct work_struct rst_timer_task;
812 struct work_struct set_link_task;
814 /* Flag that can be used to turn on or turn off the Rx checksum
819 /* after blink, the adapter must be restored with original
824 /* Last known link state. */
833 volatile unsigned long link_state;
834 struct vlan_group *vlgrp;
835 #define MSIX_FLG 0xA5
836 struct msix_entry *entries;
837 struct s2io_msix_entry *s2io_entries;
838 char desc[MAX_REQUESTED_MSI_X][25];
840 int avail_msix_vectors; /* No. of MSI-X vectors granted by system */
842 struct msix_info_st msix_info[0x3f];
844 #define XFRAME_I_DEVICE 1
845 #define XFRAME_II_DEVICE 2
848 #define MAX_LRO_SESSIONS 32
849 struct lro lro0_n[MAX_LRO_SESSIONS];
850 unsigned long clubbed_frms_cnt;
851 unsigned long sending_both;
853 u16 lro_max_aggr_per_sess;
863 #define VPD_STRING_LEN 80
864 u8 product_name[VPD_STRING_LEN];
865 u8 serial_num[VPD_STRING_LEN];
868 #define RESET_ERROR 1;
871 /* OS related system calls */
873 static inline u64 readq(void __iomem *addr)
876 ret = readl(addr + 4);
885 static inline void writeq(u64 val, void __iomem *addr)
887 writel((u32) (val), addr);
888 writel((u32) (val >> 32), (addr + 4));
893 * Some registers have to be written in a particular order to
894 * expect correct hardware operation. The macro SPECIAL_REG_WRITE
895 * is used to perform such ordered writes. Defines UF (Upper First)
896 * and LF (Lower First) will be used to specify the required write order.
900 static inline void SPECIAL_REG_WRITE(u64 val, void __iomem *addr, int order)
905 writel((u32) (val), addr);
907 writel((u32) (val >> 32), (addr + 4));
908 ret = readl(addr + 4);
910 writel((u32) (val >> 32), (addr + 4));
911 ret = readl(addr + 4);
912 writel((u32) (val), addr);
917 /* Interrupt related values of Xena */
919 #define ENABLE_INTRS 1
920 #define DISABLE_INTRS 2
922 /* Highest level interrupt blocks */
923 #define TX_PIC_INTR (0x0001<<0)
924 #define TX_DMA_INTR (0x0001<<1)
925 #define TX_MAC_INTR (0x0001<<2)
926 #define TX_XGXS_INTR (0x0001<<3)
927 #define TX_TRAFFIC_INTR (0x0001<<4)
928 #define RX_PIC_INTR (0x0001<<5)
929 #define RX_DMA_INTR (0x0001<<6)
930 #define RX_MAC_INTR (0x0001<<7)
931 #define RX_XGXS_INTR (0x0001<<8)
932 #define RX_TRAFFIC_INTR (0x0001<<9)
933 #define MC_INTR (0x0001<<10)
934 #define ENA_ALL_INTRS ( TX_PIC_INTR | \
946 /* Interrupt masks for the general interrupt mask register */
947 #define DISABLE_ALL_INTRS 0xFFFFFFFFFFFFFFFFULL
949 #define TXPIC_INT_M BIT(0)
950 #define TXDMA_INT_M BIT(1)
951 #define TXMAC_INT_M BIT(2)
952 #define TXXGXS_INT_M BIT(3)
953 #define TXTRAFFIC_INT_M BIT(8)
954 #define PIC_RX_INT_M BIT(32)
955 #define RXDMA_INT_M BIT(33)
956 #define RXMAC_INT_M BIT(34)
957 #define MC_INT_M BIT(35)
958 #define RXXGXS_INT_M BIT(36)
959 #define RXTRAFFIC_INT_M BIT(40)
961 /* PIC level Interrupts TODO*/
963 /* DMA level Inressupts */
964 #define TXDMA_PFC_INT_M BIT(0)
965 #define TXDMA_PCC_INT_M BIT(2)
967 /* PFC block interrupts */
968 #define PFC_MISC_ERR_1 BIT(0) /* Interrupt to indicate FIFO full */
970 /* PCC block interrupts. */
971 #define PCC_FB_ECC_ERR vBIT(0xff, 16, 8) /* Interrupt to indicate
974 #define RXD_GET_VLAN_TAG(Control_2) (u16)(Control_2 & MASK_VLAN_TAG)
976 * Prototype declaration.
978 static int __devinit s2io_init_nic(struct pci_dev *pdev,
979 const struct pci_device_id *pre);
980 static void __devexit s2io_rem_nic(struct pci_dev *pdev);
981 static int init_shared_mem(struct s2io_nic *sp);
982 static void free_shared_mem(struct s2io_nic *sp);
983 static int init_nic(struct s2io_nic *nic);
984 static void rx_intr_handler(struct ring_info *ring_data);
985 static void tx_intr_handler(struct fifo_info *fifo_data);
986 static void alarm_intr_handler(struct s2io_nic *sp);
988 static int s2io_starter(void);
989 static void s2io_closer(void);
990 static void s2io_tx_watchdog(struct net_device *dev);
991 static void s2io_tasklet(unsigned long dev_addr);
992 static void s2io_set_multicast(struct net_device *dev);
993 static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp);
994 static void s2io_link(struct s2io_nic * sp, int link);
995 static void s2io_reset(struct s2io_nic * sp);
996 static int s2io_poll(struct net_device *dev, int *budget);
997 static void s2io_init_pci(struct s2io_nic * sp);
998 static int s2io_set_mac_addr(struct net_device *dev, u8 * addr);
999 static void s2io_alarm_handle(unsigned long data);
1000 static int s2io_enable_msi(struct s2io_nic *nic);
1001 static irqreturn_t s2io_msi_handle(int irq, void *dev_id);
1003 s2io_msix_ring_handle(int irq, void *dev_id);
1005 s2io_msix_fifo_handle(int irq, void *dev_id);
1006 static irqreturn_t s2io_isr(int irq, void *dev_id);
1007 static int verify_xena_quiescence(struct s2io_nic *sp);
1008 static const struct ethtool_ops netdev_ethtool_ops;
1009 static void s2io_set_link(struct work_struct *work);
1010 static int s2io_set_swapper(struct s2io_nic * sp);
1011 static void s2io_card_down(struct s2io_nic *nic);
1012 static int s2io_card_up(struct s2io_nic *nic);
1013 static int get_xena_rev_id(struct pci_dev *pdev);
1014 static int wait_for_cmd_complete(void __iomem *addr, u64 busy_bit,
1016 static int s2io_add_isr(struct s2io_nic * sp);
1017 static void s2io_rem_isr(struct s2io_nic * sp);
1019 static void restore_xmsi_data(struct s2io_nic *nic);
1022 s2io_club_tcp_session(u8 *buffer, u8 **tcp, u32 *tcp_len, struct lro **lro,
1023 struct RxD_t *rxdp, struct s2io_nic *sp);
1024 static void clear_lro_session(struct lro *lro);
1025 static void queue_rx_frame(struct sk_buff *skb);
1026 static void update_L3L4_header(struct s2io_nic *sp, struct lro *lro);
1027 static void lro_append_pkt(struct s2io_nic *sp, struct lro *lro,
1028 struct sk_buff *skb, u32 tcp_len);
1029 static int rts_ds_steer(struct s2io_nic *nic, u8 ds_codepoint, u8 ring);
1031 #define s2io_tcp_mss(skb) skb_shinfo(skb)->gso_size
1032 #define s2io_udp_mss(skb) skb_shinfo(skb)->gso_size
1033 #define s2io_offload_type(skb) skb_shinfo(skb)->gso_type
1035 #define S2IO_PARM_INT(X, def_val) \
1036 static unsigned int X = def_val;\
1037 module_param(X , uint, 0);
1039 #endif /* _S2IO_H */