1 /************************************************************************
2 * s2io.h: A Linux PCI-X Ethernet driver for Neterion 10GbE Server NIC
3 * Copyright(c) 2002-2005 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
36 #define CHECKBIT(value, nbit) (value & (1 << nbit))
38 /* Maximum time to flicker LED when asked to identify NIC using ethtool */
39 #define MAX_FLICKER_TIME 60000 /* 60 Secs */
41 /* Maximum outstanding splits to be configured into xena. */
43 XENA_ONE_SPLIT_TRANSACTION = 0,
44 XENA_TWO_SPLIT_TRANSACTION = 1,
45 XENA_THREE_SPLIT_TRANSACTION = 2,
46 XENA_FOUR_SPLIT_TRANSACTION = 3,
47 XENA_EIGHT_SPLIT_TRANSACTION = 4,
48 XENA_TWELVE_SPLIT_TRANSACTION = 5,
49 XENA_SIXTEEN_SPLIT_TRANSACTION = 6,
50 XENA_THIRTYTWO_SPLIT_TRANSACTION = 7
52 #define XENA_MAX_OUTSTANDING_SPLITS(n) (n << 4)
54 /* OS concerned variables and constants */
55 #define WATCH_DOG_TIMEOUT 15*HZ
57 #define ALIGN_SIZE 127
58 #define PCIX_COMMAND_REGISTER 0x62
61 * Debug related variables.
63 /* different debug levels. */
70 /* Global variable that defines the present debug level of the driver. */
71 static int debug_level = ERR_DBG;
73 /* DEBUG message print. */
74 #define DBG_PRINT(dbg_level, args...) if(!(debug_level<dbg_level)) printk(args)
76 /* Protocol assist features of the NIC */
77 #define L3_CKSUM_OK 0xFFFF
78 #define L4_CKSUM_OK 0xFFFF
79 #define S2IO_JUMBO_SIZE 9600
81 /* Driver statistics maintained by driver */
83 unsigned long long single_ecc_errs;
84 unsigned long long double_ecc_errs;
85 unsigned long long parity_err_cnt;
86 unsigned long long serious_err_cnt;
87 unsigned long long soft_reset_cnt;
88 unsigned long long fifo_full_cnt;
89 unsigned long long ring_full_cnt;
91 unsigned long long clubbed_frms_cnt;
92 unsigned long long sending_both;
93 unsigned long long outof_sequence_pkts;
94 unsigned long long flush_max_pkts;
95 unsigned long long sum_avg_pkts_aggregated;
96 unsigned long long num_aggregations;
99 /* Xpak releated alarm and warnings */
101 u64 alarm_transceiver_temp_high;
102 u64 alarm_transceiver_temp_low;
103 u64 alarm_laser_bias_current_high;
104 u64 alarm_laser_bias_current_low;
105 u64 alarm_laser_output_power_high;
106 u64 alarm_laser_output_power_low;
107 u64 warn_transceiver_temp_high;
108 u64 warn_transceiver_temp_low;
109 u64 warn_laser_bias_current_high;
110 u64 warn_laser_bias_current_low;
111 u64 warn_laser_output_power_high;
112 u64 warn_laser_output_power_low;
114 u32 xpak_timer_count;
118 /* The statistics block of Xena */
120 /* Tx MAC statistics counters. */
121 __le32 tmac_data_octets;
123 __le64 tmac_drop_frms;
124 __le32 tmac_bcst_frms;
125 __le32 tmac_mcst_frms;
126 __le64 tmac_pause_ctrl_frms;
127 __le32 tmac_ucst_frms;
128 __le32 tmac_ttl_octets;
129 __le32 tmac_any_err_frms;
130 __le32 tmac_nucst_frms;
131 __le64 tmac_ttl_less_fb_octets;
132 __le64 tmac_vld_ip_octets;
141 /* Rx MAC Statistics counters. */
142 __le32 rmac_data_octets;
143 __le32 rmac_vld_frms;
144 __le64 rmac_fcs_err_frms;
145 __le64 rmac_drop_frms;
146 __le32 rmac_vld_bcst_frms;
147 __le32 rmac_vld_mcst_frms;
148 __le32 rmac_out_rng_len_err_frms;
149 __le32 rmac_in_rng_len_err_frms;
150 __le64 rmac_long_frms;
151 __le64 rmac_pause_ctrl_frms;
152 __le64 rmac_unsup_ctrl_frms;
153 __le32 rmac_accepted_ucst_frms;
154 __le32 rmac_ttl_octets;
155 __le32 rmac_discarded_frms;
156 __le32 rmac_accepted_nucst_frms;
158 __le32 rmac_drop_events;
159 __le64 rmac_ttl_less_fb_octets;
160 __le64 rmac_ttl_frms;
162 __le32 rmac_usized_frms;
164 __le32 rmac_frag_frms;
165 __le32 rmac_osized_frms;
167 __le32 rmac_jabber_frms;
168 __le64 rmac_ttl_64_frms;
169 __le64 rmac_ttl_65_127_frms;
171 __le64 rmac_ttl_128_255_frms;
172 __le64 rmac_ttl_256_511_frms;
174 __le64 rmac_ttl_512_1023_frms;
175 __le64 rmac_ttl_1024_1518_frms;
178 __le64 rmac_ip_octets;
180 __le32 rmac_hdr_err_ip;
184 __le32 rmac_err_drp_udp;
186 __le64 rmac_xgmii_err_sym;
204 __le32 rmac_pause_cnt;
205 __le64 rmac_xgmii_data_err_cnt;
206 __le64 rmac_xgmii_ctrl_err_cnt;
208 __le32 rmac_accepted_ip;
210 /* PCI/PCI-X Read transaction statistics. */
211 __le32 new_rd_req_cnt;
214 __le32 new_rd_req_rtry_cnt;
216 /* PCI/PCI-X Write/Read transaction statistics. */
218 __le32 wr_rtry_rd_ack_cnt;
219 __le32 new_wr_req_rtry_cnt;
220 __le32 new_wr_req_cnt;
224 /* PCI/PCI-X Write / DMA Transaction statistics. */
226 __le32 rd_rtry_wr_ack_cnt;
234 /* Tx MAC statistics overflow counters. */
235 __le32 tmac_data_octets_oflow;
236 __le32 tmac_frms_oflow;
237 __le32 tmac_bcst_frms_oflow;
238 __le32 tmac_mcst_frms_oflow;
239 __le32 tmac_ucst_frms_oflow;
240 __le32 tmac_ttl_octets_oflow;
241 __le32 tmac_any_err_frms_oflow;
242 __le32 tmac_nucst_frms_oflow;
243 __le64 tmac_vlan_frms;
244 __le32 tmac_drop_ip_oflow;
245 __le32 tmac_vld_ip_oflow;
246 __le32 tmac_rst_tcp_oflow;
247 __le32 tmac_icmp_oflow;
248 __le32 tpa_unknown_protocol;
249 __le32 tmac_udp_oflow;
251 __le32 tpa_parse_failure;
253 /* Rx MAC Statistics overflow counters. */
254 __le32 rmac_data_octets_oflow;
255 __le32 rmac_vld_frms_oflow;
256 __le32 rmac_vld_bcst_frms_oflow;
257 __le32 rmac_vld_mcst_frms_oflow;
258 __le32 rmac_accepted_ucst_frms_oflow;
259 __le32 rmac_ttl_octets_oflow;
260 __le32 rmac_discarded_frms_oflow;
261 __le32 rmac_accepted_nucst_frms_oflow;
262 __le32 rmac_usized_frms_oflow;
263 __le32 rmac_drop_events_oflow;
264 __le32 rmac_frag_frms_oflow;
265 __le32 rmac_osized_frms_oflow;
266 __le32 rmac_ip_oflow;
267 __le32 rmac_jabber_frms_oflow;
268 __le32 rmac_icmp_oflow;
269 __le32 rmac_drop_ip_oflow;
270 __le32 rmac_err_drp_udp_oflow;
271 __le32 rmac_udp_oflow;
273 __le32 rmac_pause_cnt_oflow;
274 __le64 rmac_ttl_1519_4095_frms;
275 __le64 rmac_ttl_4096_8191_frms;
276 __le64 rmac_ttl_8192_max_frms;
277 __le64 rmac_ttl_gt_max_frms;
278 __le64 rmac_osized_alt_frms;
279 __le64 rmac_jabber_alt_frms;
280 __le64 rmac_gt_max_alt_frms;
281 __le64 rmac_vlan_frms;
282 __le32 rmac_len_discard;
283 __le32 rmac_fcs_discard;
284 __le32 rmac_pf_discard;
285 __le32 rmac_da_discard;
286 __le32 rmac_red_discard;
287 __le32 rmac_rts_discard;
289 __le32 rmac_ingm_full_discard;
291 __le32 rmac_accepted_ip_oflow;
293 __le32 link_fault_cnt;
295 struct swStat sw_stat;
296 struct xpakStat xpak_stat;
300 * Structures representing different init time configuration
301 * parameters of the NIC.
304 #define MAX_TX_FIFOS 8
305 #define MAX_RX_RINGS 8
307 /* FIFO mappings for all possible number of fifos configured */
308 static int fifo_map[][MAX_TX_FIFOS] = {
309 {0, 0, 0, 0, 0, 0, 0, 0},
310 {0, 0, 0, 0, 1, 1, 1, 1},
311 {0, 0, 0, 1, 1, 1, 2, 2},
312 {0, 0, 1, 1, 2, 2, 3, 3},
313 {0, 0, 1, 1, 2, 2, 3, 4},
314 {0, 0, 1, 1, 2, 3, 4, 5},
315 {0, 0, 1, 2, 3, 4, 5, 6},
316 {0, 1, 2, 3, 4, 5, 6, 7},
319 /* Maintains Per FIFO related information. */
320 struct tx_fifo_config {
321 #define MAX_AVAILABLE_TXDS 8192
322 u32 fifo_len; /* specifies len of FIFO upto 8192, ie no of TxDLs */
323 /* Priority definition */
324 #define TX_FIFO_PRI_0 0 /*Highest */
325 #define TX_FIFO_PRI_1 1
326 #define TX_FIFO_PRI_2 2
327 #define TX_FIFO_PRI_3 3
328 #define TX_FIFO_PRI_4 4
329 #define TX_FIFO_PRI_5 5
330 #define TX_FIFO_PRI_6 6
331 #define TX_FIFO_PRI_7 7 /*lowest */
332 u8 fifo_priority; /* specifies pointer level for FIFO */
333 /* user should not set twos fifos with same pri */
335 #define NO_SNOOP_TXD 0x01
336 #define NO_SNOOP_TXD_BUFFER 0x02
340 /* Maintains per Ring related information */
341 struct rx_ring_config {
342 u32 num_rxd; /*No of RxDs per Rx Ring */
343 #define RX_RING_PRI_0 0 /* highest */
344 #define RX_RING_PRI_1 1
345 #define RX_RING_PRI_2 2
346 #define RX_RING_PRI_3 3
347 #define RX_RING_PRI_4 4
348 #define RX_RING_PRI_5 5
349 #define RX_RING_PRI_6 6
350 #define RX_RING_PRI_7 7 /* lowest */
352 u8 ring_priority; /*Specifies service priority of ring */
353 /* OSM should not set any two rings with same priority */
354 u8 ring_org; /*Organization of ring */
355 #define RING_ORG_BUFF1 0x01
356 #define RX_RING_ORG_BUFF3 0x03
357 #define RX_RING_ORG_BUFF5 0x05
360 #define NO_SNOOP_RXD 0x01
361 #define NO_SNOOP_RXD_BUFFER 0x02
364 /* This structure provides contains values of the tunable parameters
367 struct config_param {
369 u32 tx_fifo_num; /*Number of Tx FIFOs */
371 u8 fifo_mapping[MAX_TX_FIFOS];
372 struct tx_fifo_config tx_cfg[MAX_TX_FIFOS]; /*Per-Tx FIFO config */
373 u32 max_txds; /*Max no. of Tx buffer descriptor per TxDL */
375 /* Specifies if Tx Intr is UTILZ or PER_LIST type. */
378 u32 rx_ring_num; /*Number of receive rings */
379 #define MAX_RX_BLOCKS_PER_RING 150
381 struct rx_ring_config rx_cfg[MAX_RX_RINGS]; /*Per-Rx Ring config */
382 u8 bimodal; /*Flag for setting bimodal interrupts*/
384 #define HEADER_ETHERNET_II_802_3_SIZE 14
385 #define HEADER_802_2_SIZE 3
386 #define HEADER_SNAP_SIZE 5
387 #define HEADER_VLAN_SIZE 4
390 #define MAX_PYLD 1500
391 #define MAX_MTU (MAX_PYLD+18)
392 #define MAX_MTU_VLAN (MAX_PYLD+22)
393 #define MAX_PYLD_JUMBO 9600
394 #define MAX_MTU_JUMBO (MAX_PYLD_JUMBO+18)
395 #define MAX_MTU_JUMBO_VLAN (MAX_PYLD_JUMBO+22)
399 /* Structure representing MAC Addrs */
401 u8 mac_addr[ETH_ALEN];
404 /* Structure that represent every FIFO element in the BAR1
407 struct TxFIFO_element {
411 #define TX_FIFO_LAST_TXD_NUM( val) vBIT(val,0,8)
412 #define TX_FIFO_FIRST_LIST BIT(14)
413 #define TX_FIFO_LAST_LIST BIT(15)
414 #define TX_FIFO_FIRSTNLAST_LIST vBIT(3,14,2)
415 #define TX_FIFO_SPECIAL_FUNC BIT(23)
416 #define TX_FIFO_DS_NO_SNOOP BIT(31)
417 #define TX_FIFO_BUFF_NO_SNOOP BIT(30)
420 /* Tx descriptor structure */
424 #define TXD_LIST_OWN_XENA BIT(7)
425 #define TXD_T_CODE (BIT(12)|BIT(13)|BIT(14)|BIT(15))
426 #define TXD_T_CODE_OK(val) (|(val & TXD_T_CODE))
427 #define GET_TXD_T_CODE(val) ((val & TXD_T_CODE)<<12)
428 #define TXD_GATHER_CODE (BIT(22) | BIT(23))
429 #define TXD_GATHER_CODE_FIRST BIT(22)
430 #define TXD_GATHER_CODE_LAST BIT(23)
431 #define TXD_TCP_LSO_EN BIT(30)
432 #define TXD_UDP_COF_EN BIT(31)
433 #define TXD_UFO_EN BIT(31) | BIT(30)
434 #define TXD_TCP_LSO_MSS(val) vBIT(val,34,14)
435 #define TXD_UFO_MSS(val) vBIT(val,34,14)
436 #define TXD_BUFFER0_SIZE(val) vBIT(val,48,16)
439 #define TXD_TX_CKO_CONTROL (BIT(5)|BIT(6)|BIT(7))
440 #define TXD_TX_CKO_IPV4_EN BIT(5)
441 #define TXD_TX_CKO_TCP_EN BIT(6)
442 #define TXD_TX_CKO_UDP_EN BIT(7)
443 #define TXD_VLAN_ENABLE BIT(15)
444 #define TXD_VLAN_TAG(val) vBIT(val,16,16)
445 #define TXD_INT_NUMBER(val) vBIT(val,34,6)
446 #define TXD_INT_TYPE_PER_LIST BIT(47)
447 #define TXD_INT_TYPE_UTILZ BIT(46)
448 #define TXD_SET_MARKER vBIT(0x6,0,4)
451 u64 Host_Control; /* reserved for host */
454 /* Structure to hold the phy and virt addr of every TxDL. */
455 struct list_info_hold {
456 dma_addr_t list_phy_addr;
457 void *list_virt_addr;
460 /* Rx descriptor structure for 1 buffer mode */
462 u64 Host_Control; /* reserved for host */
464 #define RXD_OWN_XENA BIT(7)
465 #define RXD_T_CODE (BIT(12)|BIT(13)|BIT(14)|BIT(15))
466 #define RXD_FRAME_PROTO vBIT(0xFFFF,24,8)
467 #define RXD_FRAME_PROTO_IPV4 BIT(27)
468 #define RXD_FRAME_PROTO_IPV6 BIT(28)
469 #define RXD_FRAME_IP_FRAG BIT(29)
470 #define RXD_FRAME_PROTO_TCP BIT(30)
471 #define RXD_FRAME_PROTO_UDP BIT(31)
472 #define TCP_OR_UDP_FRAME (RXD_FRAME_PROTO_TCP | RXD_FRAME_PROTO_UDP)
473 #define RXD_GET_L3_CKSUM(val) ((u16)(val>> 16) & 0xFFFF)
474 #define RXD_GET_L4_CKSUM(val) ((u16)(val) & 0xFFFF)
477 #define THE_RXD_MARK 0x3
478 #define SET_RXD_MARKER vBIT(THE_RXD_MARK, 0, 2)
479 #define GET_RXD_MARKER(ctrl) ((ctrl & SET_RXD_MARKER) >> 62)
481 #define MASK_VLAN_TAG vBIT(0xFFFF,48,16)
482 #define SET_VLAN_TAG(val) vBIT(val,48,16)
483 #define SET_NUM_TAG(val) vBIT(val,16,32)
487 /* Rx descriptor structure for 1 buffer mode */
491 #define MASK_BUFFER0_SIZE_1 vBIT(0x3FFF,2,14)
492 #define SET_BUFFER0_SIZE_1(val) vBIT(val,2,14)
493 #define RXD_GET_BUFFER0_SIZE_1(_Control_2) \
494 (u16)((_Control_2 & MASK_BUFFER0_SIZE_1) >> 48)
497 /* Rx descriptor structure for 3 or 2 buffer mode */
502 #define MASK_BUFFER0_SIZE_3 vBIT(0xFF,2,14)
503 #define MASK_BUFFER1_SIZE_3 vBIT(0xFFFF,16,16)
504 #define MASK_BUFFER2_SIZE_3 vBIT(0xFFFF,32,16)
505 #define SET_BUFFER0_SIZE_3(val) vBIT(val,8,8)
506 #define SET_BUFFER1_SIZE_3(val) vBIT(val,16,16)
507 #define SET_BUFFER2_SIZE_3(val) vBIT(val,32,16)
508 #define RXD_GET_BUFFER0_SIZE_3(Control_2) \
509 (u8)((Control_2 & MASK_BUFFER0_SIZE_3) >> 48)
510 #define RXD_GET_BUFFER1_SIZE_3(Control_2) \
511 (u16)((Control_2 & MASK_BUFFER1_SIZE_3) >> 32)
512 #define RXD_GET_BUFFER2_SIZE_3(Control_2) \
513 (u16)((Control_2 & MASK_BUFFER2_SIZE_3) >> 16)
523 /* Structure that represents the Rx descriptor block which contains
524 * 128 Rx descriptors.
527 #define MAX_RXDS_PER_BLOCK_1 127
528 struct RxD1 rxd[MAX_RXDS_PER_BLOCK_1];
531 #define END_OF_BLOCK 0xFEFFFFFFFFFFFFFFULL
532 u64 reserved_1; /* 0xFEFFFFFFFFFFFFFF to mark last
534 u64 reserved_2_pNext_RxD_block; /* Logical ptr to next */
535 u64 pNext_RxD_Blk_physical; /* Buff0_ptr.In a 32 bit arch
536 * the upper 32 bits should
540 #define SIZE_OF_BLOCK 4096
542 #define RXD_MODE_1 0 /* One Buffer mode */
543 #define RXD_MODE_3A 1 /* Three Buffer mode */
544 #define RXD_MODE_3B 2 /* Two Buffer mode */
546 /* Structure to hold virtual addresses of Buf0 and Buf1 in
555 /* Structure which stores all the MAC control parameters */
557 /* This structure stores the offset of the RxD in the ring
558 * from which the Rx Interrupt processor can start picking
559 * up the RxDs for processing.
561 struct rx_curr_get_info {
567 struct rx_curr_put_info {
573 /* This structure stores the offset of the TxDl in the FIFO
574 * from which the Tx Interrupt processor can start picking
575 * up the TxDLs for send complete interrupt processing.
577 struct tx_curr_get_info {
582 struct tx_curr_put_info {
592 /* Structure that holds the Phy and virt addresses of the Blocks */
593 struct rx_block_info {
594 void *block_virt_addr;
595 dma_addr_t block_dma_addr;
596 struct rxd_info *rxds;
599 /* Ring specific structure */
601 /* The ring number */
605 * Place holders for the virtual and physical addresses of
608 struct rx_block_info rx_blocks[MAX_RX_BLOCKS_PER_RING];
613 * Put pointer info which indictes which RxD has to be replenished
616 struct rx_curr_put_info rx_curr_put_info;
619 * Get pointer info which indictes which is the last RxD that was
620 * processed by the driver.
622 struct rx_curr_get_info rx_curr_get_info;
624 /* Index to the absolute position of the put pointer of Rx ring */
627 /* Buffer Address store. */
629 struct s2io_nic *nic;
632 /* Fifo specific structure */
637 /* Maximum TxDs per TxDL */
640 /* Place holder of all the TX List's Phy and Virt addresses. */
641 struct list_info_hold *list_info;
644 * Current offset within the tx FIFO where driver would write
647 struct tx_curr_put_info tx_curr_put_info;
650 * Current offset within tx FIFO from where the driver would start freeing
653 struct tx_curr_get_info tx_curr_get_info;
655 struct s2io_nic *nic;
658 /* Information related to the Tx and Rx FIFOs and Rings of Xena
659 * is maintained in this structure.
663 /* logical pointer of start of each Tx FIFO */
664 struct TxFIFO_element __iomem *tx_FIFO_start[MAX_TX_FIFOS];
666 /* Fifo specific structure */
667 struct fifo_info fifos[MAX_TX_FIFOS];
669 /* Save virtual address of TxD page with zero DMA addr(if any) */
670 void *zerodma_virt_addr;
673 /* Ring specific structure */
674 struct ring_info rings[MAX_RX_RINGS];
677 u16 mc_pause_threshold_q0q3;
678 u16 mc_pause_threshold_q4q7;
680 void *stats_mem; /* orignal pointer to allocated mem */
681 dma_addr_t stats_mem_phy; /* Physical address of the stat block */
683 struct stat_block *stats_info; /* Logical address of the stat block */
686 /* structure representing the user defined MAC addresses */
692 /* Default Tunable parameters of the NIC. */
693 #define DEFAULT_FIFO_0_LEN 4096
694 #define DEFAULT_FIFO_1_7_LEN 512
695 #define SMALL_BLK_CNT 30
696 #define LARGE_BLK_CNT 100
699 * Structure to keep track of the MSI-X vectors and the corresponding
700 * argument registered against each vector
702 #define MAX_REQUESTED_MSI_X 17
703 struct s2io_msix_entry
710 #define MSIX_FIFO_TYPE 1
711 #define MSIX_RING_TYPE 2
714 #define MSIX_REGISTERED_SUCCESS 0xAA
717 struct msix_info_st {
722 /* Data structure to represent a LRO session */
724 struct sk_buff *parent;
725 struct sk_buff *last_frag;
741 /* Structure representing one instance of the NIC */
745 * Count of packets to be processed in a given iteration, it will be indicated
746 * by the quota field of the device structure when NAPI is enabled.
749 struct net_device *dev;
750 struct mac_info mac_control;
751 struct config_param config;
752 struct pci_dev *pdev;
755 #define MAX_MAC_SUPPORTED 16
756 #define MAX_SUPPORTED_MULTICASTS MAX_MAC_SUPPORTED
758 struct mac_addr def_mac_addr[MAX_MAC_SUPPORTED];
759 struct mac_addr pre_mac_addr[MAX_MAC_SUPPORTED];
761 struct net_device_stats stats;
763 int device_close_flag;
764 int device_enabled_once;
767 struct tasklet_struct task;
768 volatile unsigned long tasklet_status;
770 /* Timer that handles I/O errors/exceptions */
771 struct timer_list alarm_timer;
773 /* Space to back up the PCI config space */
774 u32 config_space[256 / sizeof(u32)];
776 atomic_t rx_bufs_left[MAX_RX_RINGS];
784 #define MAX_ADDRS_SUPPORTED 64
787 struct usr_addr usr_addrs[MAX_ADDRS_SUPPORTED];
798 /* Id timer, used to blink NIC to physically identify NIC. */
799 struct timer_list id_timer;
801 /* Restart timer, used to restart NIC if the device is stuck and
802 * a schedule task that will set the correct Link state once the
803 * NIC's PHY has stabilized after a state change.
805 struct work_struct rst_timer_task;
806 struct work_struct set_link_task;
808 /* Flag that can be used to turn on or turn off the Rx checksum
813 /* after blink, the adapter must be restored with original
818 /* Last known link state. */
827 volatile unsigned long link_state;
828 struct vlan_group *vlgrp;
829 #define MSIX_FLG 0xA5
830 struct msix_entry *entries;
831 struct s2io_msix_entry *s2io_entries;
832 char desc[MAX_REQUESTED_MSI_X][25];
834 int avail_msix_vectors; /* No. of MSI-X vectors granted by system */
836 struct msix_info_st msix_info[0x3f];
838 #define XFRAME_I_DEVICE 1
839 #define XFRAME_II_DEVICE 2
842 #define MAX_LRO_SESSIONS 32
843 struct lro lro0_n[MAX_LRO_SESSIONS];
844 unsigned long clubbed_frms_cnt;
845 unsigned long sending_both;
847 u16 lro_max_aggr_per_sess;
857 #define VPD_STRING_LEN 80
858 u8 product_name[VPD_STRING_LEN];
859 u8 serial_num[VPD_STRING_LEN];
862 #define RESET_ERROR 1;
865 /* OS related system calls */
867 static inline u64 readq(void __iomem *addr)
870 ret = readl(addr + 4);
879 static inline void writeq(u64 val, void __iomem *addr)
881 writel((u32) (val), addr);
882 writel((u32) (val >> 32), (addr + 4));
887 * Some registers have to be written in a particular order to
888 * expect correct hardware operation. The macro SPECIAL_REG_WRITE
889 * is used to perform such ordered writes. Defines UF (Upper First)
890 * and LF (Lower First) will be used to specify the required write order.
894 static inline void SPECIAL_REG_WRITE(u64 val, void __iomem *addr, int order)
899 writel((u32) (val), addr);
901 writel((u32) (val >> 32), (addr + 4));
902 ret = readl(addr + 4);
904 writel((u32) (val >> 32), (addr + 4));
905 ret = readl(addr + 4);
906 writel((u32) (val), addr);
911 /* Interrupt related values of Xena */
913 #define ENABLE_INTRS 1
914 #define DISABLE_INTRS 2
916 /* Highest level interrupt blocks */
917 #define TX_PIC_INTR (0x0001<<0)
918 #define TX_DMA_INTR (0x0001<<1)
919 #define TX_MAC_INTR (0x0001<<2)
920 #define TX_XGXS_INTR (0x0001<<3)
921 #define TX_TRAFFIC_INTR (0x0001<<4)
922 #define RX_PIC_INTR (0x0001<<5)
923 #define RX_DMA_INTR (0x0001<<6)
924 #define RX_MAC_INTR (0x0001<<7)
925 #define RX_XGXS_INTR (0x0001<<8)
926 #define RX_TRAFFIC_INTR (0x0001<<9)
927 #define MC_INTR (0x0001<<10)
928 #define ENA_ALL_INTRS ( TX_PIC_INTR | \
940 /* Interrupt masks for the general interrupt mask register */
941 #define DISABLE_ALL_INTRS 0xFFFFFFFFFFFFFFFFULL
943 #define TXPIC_INT_M BIT(0)
944 #define TXDMA_INT_M BIT(1)
945 #define TXMAC_INT_M BIT(2)
946 #define TXXGXS_INT_M BIT(3)
947 #define TXTRAFFIC_INT_M BIT(8)
948 #define PIC_RX_INT_M BIT(32)
949 #define RXDMA_INT_M BIT(33)
950 #define RXMAC_INT_M BIT(34)
951 #define MC_INT_M BIT(35)
952 #define RXXGXS_INT_M BIT(36)
953 #define RXTRAFFIC_INT_M BIT(40)
955 /* PIC level Interrupts TODO*/
957 /* DMA level Inressupts */
958 #define TXDMA_PFC_INT_M BIT(0)
959 #define TXDMA_PCC_INT_M BIT(2)
961 /* PFC block interrupts */
962 #define PFC_MISC_ERR_1 BIT(0) /* Interrupt to indicate FIFO full */
964 /* PCC block interrupts. */
965 #define PCC_FB_ECC_ERR vBIT(0xff, 16, 8) /* Interrupt to indicate
968 #define RXD_GET_VLAN_TAG(Control_2) (u16)(Control_2 & MASK_VLAN_TAG)
970 * Prototype declaration.
972 static int __devinit s2io_init_nic(struct pci_dev *pdev,
973 const struct pci_device_id *pre);
974 static void __devexit s2io_rem_nic(struct pci_dev *pdev);
975 static int init_shared_mem(struct s2io_nic *sp);
976 static void free_shared_mem(struct s2io_nic *sp);
977 static int init_nic(struct s2io_nic *nic);
978 static void rx_intr_handler(struct ring_info *ring_data);
979 static void tx_intr_handler(struct fifo_info *fifo_data);
980 static void alarm_intr_handler(struct s2io_nic *sp);
982 static int s2io_starter(void);
983 static void s2io_closer(void);
984 static void s2io_tx_watchdog(struct net_device *dev);
985 static void s2io_tasklet(unsigned long dev_addr);
986 static void s2io_set_multicast(struct net_device *dev);
987 static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp);
988 static void s2io_link(struct s2io_nic * sp, int link);
989 static void s2io_reset(struct s2io_nic * sp);
990 static int s2io_poll(struct net_device *dev, int *budget);
991 static void s2io_init_pci(struct s2io_nic * sp);
992 static int s2io_set_mac_addr(struct net_device *dev, u8 * addr);
993 static void s2io_alarm_handle(unsigned long data);
994 static int s2io_enable_msi(struct s2io_nic *nic);
995 static irqreturn_t s2io_msi_handle(int irq, void *dev_id);
997 s2io_msix_ring_handle(int irq, void *dev_id);
999 s2io_msix_fifo_handle(int irq, void *dev_id);
1000 static irqreturn_t s2io_isr(int irq, void *dev_id);
1001 static int verify_xena_quiescence(struct s2io_nic *sp);
1002 static const struct ethtool_ops netdev_ethtool_ops;
1003 static void s2io_set_link(struct work_struct *work);
1004 static int s2io_set_swapper(struct s2io_nic * sp);
1005 static void s2io_card_down(struct s2io_nic *nic);
1006 static int s2io_card_up(struct s2io_nic *nic);
1007 static int get_xena_rev_id(struct pci_dev *pdev);
1008 static int wait_for_cmd_complete(void __iomem *addr, u64 busy_bit);
1009 static int s2io_add_isr(struct s2io_nic * sp);
1010 static void s2io_rem_isr(struct s2io_nic * sp);
1012 static void restore_xmsi_data(struct s2io_nic *nic);
1015 s2io_club_tcp_session(u8 *buffer, u8 **tcp, u32 *tcp_len, struct lro **lro,
1016 struct RxD_t *rxdp, struct s2io_nic *sp);
1017 static void clear_lro_session(struct lro *lro);
1018 static void queue_rx_frame(struct sk_buff *skb);
1019 static void update_L3L4_header(struct s2io_nic *sp, struct lro *lro);
1020 static void lro_append_pkt(struct s2io_nic *sp, struct lro *lro,
1021 struct sk_buff *skb, u32 tcp_len);
1023 #define s2io_tcp_mss(skb) skb_shinfo(skb)->gso_size
1024 #define s2io_udp_mss(skb) skb_shinfo(skb)->gso_size
1025 #define s2io_offload_type(skb) skb_shinfo(skb)->gso_type
1027 #define S2IO_PARM_INT(X, def_val) \
1028 static unsigned int X = def_val;\
1029 module_param(X , uint, 0);
1031 #endif /* _S2IO_H */