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)
34 /* Maximum time to flicker LED when asked to identify NIC using ethtool */
35 #define MAX_FLICKER_TIME 60000 /* 60 Secs */
37 /* Maximum outstanding splits to be configured into xena. */
38 typedef enum xena_max_outstanding_splits {
39 XENA_ONE_SPLIT_TRANSACTION = 0,
40 XENA_TWO_SPLIT_TRANSACTION = 1,
41 XENA_THREE_SPLIT_TRANSACTION = 2,
42 XENA_FOUR_SPLIT_TRANSACTION = 3,
43 XENA_EIGHT_SPLIT_TRANSACTION = 4,
44 XENA_TWELVE_SPLIT_TRANSACTION = 5,
45 XENA_SIXTEEN_SPLIT_TRANSACTION = 6,
46 XENA_THIRTYTWO_SPLIT_TRANSACTION = 7
47 } xena_max_outstanding_splits;
48 #define XENA_MAX_OUTSTANDING_SPLITS(n) (n << 4)
50 /* OS concerned variables and constants */
51 #define WATCH_DOG_TIMEOUT 15*HZ
53 #define ALIGN_SIZE 127
54 #define PCIX_COMMAND_REGISTER 0x62
57 * Debug related variables.
59 /* different debug levels. */
66 /* Global variable that defines the present debug level of the driver. */
67 static int debug_level = ERR_DBG;
69 /* DEBUG message print. */
70 #define DBG_PRINT(dbg_level, args...) if(!(debug_level<dbg_level)) printk(args)
72 /* Protocol assist features of the NIC */
73 #define L3_CKSUM_OK 0xFFFF
74 #define L4_CKSUM_OK 0xFFFF
75 #define S2IO_JUMBO_SIZE 9600
77 /* Driver statistics maintained by driver */
79 unsigned long long single_ecc_errs;
80 unsigned long long double_ecc_errs;
82 unsigned long long clubbed_frms_cnt;
83 unsigned long long sending_both;
84 unsigned long long outof_sequence_pkts;
85 unsigned long long flush_max_pkts;
86 unsigned long long sum_avg_pkts_aggregated;
87 unsigned long long num_aggregations;
90 /* The statistics block of Xena */
91 typedef struct stat_block {
92 /* Tx MAC statistics counters. */
98 u64 tmac_pause_ctrl_frms;
101 u32 tmac_any_err_frms;
103 u64 tmac_ttl_less_fb_octets;
104 u64 tmac_vld_ip_octets;
113 /* Rx MAC Statistics counters. */
114 u32 rmac_data_octets;
116 u64 rmac_fcs_err_frms;
118 u32 rmac_vld_bcst_frms;
119 u32 rmac_vld_mcst_frms;
120 u32 rmac_out_rng_len_err_frms;
121 u32 rmac_in_rng_len_err_frms;
123 u64 rmac_pause_ctrl_frms;
124 u64 rmac_unsup_ctrl_frms;
125 u32 rmac_accepted_ucst_frms;
127 u32 rmac_discarded_frms;
128 u32 rmac_accepted_nucst_frms;
130 u32 rmac_drop_events;
131 u64 rmac_ttl_less_fb_octets;
134 u32 rmac_usized_frms;
137 u32 rmac_osized_frms;
139 u32 rmac_jabber_frms;
140 u64 rmac_ttl_64_frms;
141 u64 rmac_ttl_65_127_frms;
143 u64 rmac_ttl_128_255_frms;
144 u64 rmac_ttl_256_511_frms;
146 u64 rmac_ttl_512_1023_frms;
147 u64 rmac_ttl_1024_1518_frms;
156 u32 rmac_err_drp_udp;
158 u64 rmac_xgmii_err_sym;
177 u64 rmac_xgmii_data_err_cnt;
178 u64 rmac_xgmii_ctrl_err_cnt;
180 u32 rmac_accepted_ip;
182 /* PCI/PCI-X Read transaction statistics. */
186 u32 new_rd_req_rtry_cnt;
188 /* PCI/PCI-X Write/Read transaction statistics. */
190 u32 wr_rtry_rd_ack_cnt;
191 u32 new_wr_req_rtry_cnt;
196 /* PCI/PCI-X Write / DMA Transaction statistics. */
198 u32 rd_rtry_wr_ack_cnt;
206 /* Tx MAC statistics overflow counters. */
207 u32 tmac_data_octets_oflow;
209 u32 tmac_bcst_frms_oflow;
210 u32 tmac_mcst_frms_oflow;
211 u32 tmac_ucst_frms_oflow;
212 u32 tmac_ttl_octets_oflow;
213 u32 tmac_any_err_frms_oflow;
214 u32 tmac_nucst_frms_oflow;
216 u32 tmac_drop_ip_oflow;
217 u32 tmac_vld_ip_oflow;
218 u32 tmac_rst_tcp_oflow;
220 u32 tpa_unknown_protocol;
223 u32 tpa_parse_failure;
225 /* Rx MAC Statistics overflow counters. */
226 u32 rmac_data_octets_oflow;
227 u32 rmac_vld_frms_oflow;
228 u32 rmac_vld_bcst_frms_oflow;
229 u32 rmac_vld_mcst_frms_oflow;
230 u32 rmac_accepted_ucst_frms_oflow;
231 u32 rmac_ttl_octets_oflow;
232 u32 rmac_discarded_frms_oflow;
233 u32 rmac_accepted_nucst_frms_oflow;
234 u32 rmac_usized_frms_oflow;
235 u32 rmac_drop_events_oflow;
236 u32 rmac_frag_frms_oflow;
237 u32 rmac_osized_frms_oflow;
239 u32 rmac_jabber_frms_oflow;
241 u32 rmac_drop_ip_oflow;
242 u32 rmac_err_drp_udp_oflow;
245 u32 rmac_pause_cnt_oflow;
246 u64 rmac_ttl_1519_4095_frms;
247 u64 rmac_ttl_4096_8191_frms;
248 u64 rmac_ttl_8192_max_frms;
249 u64 rmac_ttl_gt_max_frms;
250 u64 rmac_osized_alt_frms;
251 u64 rmac_jabber_alt_frms;
252 u64 rmac_gt_max_alt_frms;
254 u32 rmac_len_discard;
255 u32 rmac_fcs_discard;
258 u32 rmac_red_discard;
259 u32 rmac_rts_discard;
261 u32 rmac_ingm_full_discard;
263 u32 rmac_accepted_ip_oflow;
270 * Structures representing different init time configuration
271 * parameters of the NIC.
274 #define MAX_TX_FIFOS 8
275 #define MAX_RX_RINGS 8
277 /* FIFO mappings for all possible number of fifos configured */
278 static int fifo_map[][MAX_TX_FIFOS] = {
279 {0, 0, 0, 0, 0, 0, 0, 0},
280 {0, 0, 0, 0, 1, 1, 1, 1},
281 {0, 0, 0, 1, 1, 1, 2, 2},
282 {0, 0, 1, 1, 2, 2, 3, 3},
283 {0, 0, 1, 1, 2, 2, 3, 4},
284 {0, 0, 1, 1, 2, 3, 4, 5},
285 {0, 0, 1, 2, 3, 4, 5, 6},
286 {0, 1, 2, 3, 4, 5, 6, 7},
289 /* Maintains Per FIFO related information. */
290 typedef struct tx_fifo_config {
291 #define MAX_AVAILABLE_TXDS 8192
292 u32 fifo_len; /* specifies len of FIFO upto 8192, ie no of TxDLs */
293 /* Priority definition */
294 #define TX_FIFO_PRI_0 0 /*Highest */
295 #define TX_FIFO_PRI_1 1
296 #define TX_FIFO_PRI_2 2
297 #define TX_FIFO_PRI_3 3
298 #define TX_FIFO_PRI_4 4
299 #define TX_FIFO_PRI_5 5
300 #define TX_FIFO_PRI_6 6
301 #define TX_FIFO_PRI_7 7 /*lowest */
302 u8 fifo_priority; /* specifies pointer level for FIFO */
303 /* user should not set twos fifos with same pri */
305 #define NO_SNOOP_TXD 0x01
306 #define NO_SNOOP_TXD_BUFFER 0x02
310 /* Maintains per Ring related information */
311 typedef struct rx_ring_config {
312 u32 num_rxd; /*No of RxDs per Rx Ring */
313 #define RX_RING_PRI_0 0 /* highest */
314 #define RX_RING_PRI_1 1
315 #define RX_RING_PRI_2 2
316 #define RX_RING_PRI_3 3
317 #define RX_RING_PRI_4 4
318 #define RX_RING_PRI_5 5
319 #define RX_RING_PRI_6 6
320 #define RX_RING_PRI_7 7 /* lowest */
322 u8 ring_priority; /*Specifies service priority of ring */
323 /* OSM should not set any two rings with same priority */
324 u8 ring_org; /*Organization of ring */
325 #define RING_ORG_BUFF1 0x01
326 #define RX_RING_ORG_BUFF3 0x03
327 #define RX_RING_ORG_BUFF5 0x05
330 #define NO_SNOOP_RXD 0x01
331 #define NO_SNOOP_RXD_BUFFER 0x02
334 /* This structure provides contains values of the tunable parameters
337 struct config_param {
339 u32 tx_fifo_num; /*Number of Tx FIFOs */
341 u8 fifo_mapping[MAX_TX_FIFOS];
342 tx_fifo_config_t tx_cfg[MAX_TX_FIFOS]; /*Per-Tx FIFO config */
343 u32 max_txds; /*Max no. of Tx buffer descriptor per TxDL */
345 /* Specifies if Tx Intr is UTILZ or PER_LIST type. */
348 u32 rx_ring_num; /*Number of receive rings */
349 #define MAX_RX_BLOCKS_PER_RING 150
351 rx_ring_config_t rx_cfg[MAX_RX_RINGS]; /*Per-Rx Ring config */
352 u8 bimodal; /*Flag for setting bimodal interrupts*/
354 #define HEADER_ETHERNET_II_802_3_SIZE 14
355 #define HEADER_802_2_SIZE 3
356 #define HEADER_SNAP_SIZE 5
357 #define HEADER_VLAN_SIZE 4
360 #define MAX_PYLD 1500
361 #define MAX_MTU (MAX_PYLD+18)
362 #define MAX_MTU_VLAN (MAX_PYLD+22)
363 #define MAX_PYLD_JUMBO 9600
364 #define MAX_MTU_JUMBO (MAX_PYLD_JUMBO+18)
365 #define MAX_MTU_JUMBO_VLAN (MAX_PYLD_JUMBO+22)
369 /* Structure representing MAC Addrs */
370 typedef struct mac_addr {
371 u8 mac_addr[ETH_ALEN];
374 /* Structure that represent every FIFO element in the BAR1
377 typedef struct _TxFIFO_element {
381 #define TX_FIFO_LAST_TXD_NUM( val) vBIT(val,0,8)
382 #define TX_FIFO_FIRST_LIST BIT(14)
383 #define TX_FIFO_LAST_LIST BIT(15)
384 #define TX_FIFO_FIRSTNLAST_LIST vBIT(3,14,2)
385 #define TX_FIFO_SPECIAL_FUNC BIT(23)
386 #define TX_FIFO_DS_NO_SNOOP BIT(31)
387 #define TX_FIFO_BUFF_NO_SNOOP BIT(30)
390 /* Tx descriptor structure */
391 typedef struct _TxD {
394 #define TXD_LIST_OWN_XENA BIT(7)
395 #define TXD_T_CODE (BIT(12)|BIT(13)|BIT(14)|BIT(15))
396 #define TXD_T_CODE_OK(val) (|(val & TXD_T_CODE))
397 #define GET_TXD_T_CODE(val) ((val & TXD_T_CODE)<<12)
398 #define TXD_GATHER_CODE (BIT(22) | BIT(23))
399 #define TXD_GATHER_CODE_FIRST BIT(22)
400 #define TXD_GATHER_CODE_LAST BIT(23)
401 #define TXD_TCP_LSO_EN BIT(30)
402 #define TXD_UDP_COF_EN BIT(31)
403 #define TXD_UFO_EN BIT(31) | BIT(30)
404 #define TXD_TCP_LSO_MSS(val) vBIT(val,34,14)
405 #define TXD_UFO_MSS(val) vBIT(val,34,14)
406 #define TXD_BUFFER0_SIZE(val) vBIT(val,48,16)
409 #define TXD_TX_CKO_CONTROL (BIT(5)|BIT(6)|BIT(7))
410 #define TXD_TX_CKO_IPV4_EN BIT(5)
411 #define TXD_TX_CKO_TCP_EN BIT(6)
412 #define TXD_TX_CKO_UDP_EN BIT(7)
413 #define TXD_VLAN_ENABLE BIT(15)
414 #define TXD_VLAN_TAG(val) vBIT(val,16,16)
415 #define TXD_INT_NUMBER(val) vBIT(val,34,6)
416 #define TXD_INT_TYPE_PER_LIST BIT(47)
417 #define TXD_INT_TYPE_UTILZ BIT(46)
418 #define TXD_SET_MARKER vBIT(0x6,0,4)
421 u64 Host_Control; /* reserved for host */
424 /* Structure to hold the phy and virt addr of every TxDL. */
425 typedef struct list_info_hold {
426 dma_addr_t list_phy_addr;
427 void *list_virt_addr;
430 /* Rx descriptor structure for 1 buffer mode */
431 typedef struct _RxD_t {
432 u64 Host_Control; /* reserved for host */
434 #define RXD_OWN_XENA BIT(7)
435 #define RXD_T_CODE (BIT(12)|BIT(13)|BIT(14)|BIT(15))
436 #define RXD_FRAME_PROTO vBIT(0xFFFF,24,8)
437 #define RXD_FRAME_PROTO_IPV4 BIT(27)
438 #define RXD_FRAME_PROTO_IPV6 BIT(28)
439 #define RXD_FRAME_IP_FRAG BIT(29)
440 #define RXD_FRAME_PROTO_TCP BIT(30)
441 #define RXD_FRAME_PROTO_UDP BIT(31)
442 #define TCP_OR_UDP_FRAME (RXD_FRAME_PROTO_TCP | RXD_FRAME_PROTO_UDP)
443 #define RXD_GET_L3_CKSUM(val) ((u16)(val>> 16) & 0xFFFF)
444 #define RXD_GET_L4_CKSUM(val) ((u16)(val) & 0xFFFF)
447 #define THE_RXD_MARK 0x3
448 #define SET_RXD_MARKER vBIT(THE_RXD_MARK, 0, 2)
449 #define GET_RXD_MARKER(ctrl) ((ctrl & SET_RXD_MARKER) >> 62)
451 #define MASK_VLAN_TAG vBIT(0xFFFF,48,16)
452 #define SET_VLAN_TAG(val) vBIT(val,48,16)
453 #define SET_NUM_TAG(val) vBIT(val,16,32)
457 /* Rx descriptor structure for 1 buffer mode */
458 typedef struct _RxD1_t {
461 #define MASK_BUFFER0_SIZE_1 vBIT(0x3FFF,2,14)
462 #define SET_BUFFER0_SIZE_1(val) vBIT(val,2,14)
463 #define RXD_GET_BUFFER0_SIZE_1(_Control_2) \
464 (u16)((_Control_2 & MASK_BUFFER0_SIZE_1) >> 48)
467 /* Rx descriptor structure for 3 or 2 buffer mode */
469 typedef struct _RxD3_t {
472 #define MASK_BUFFER0_SIZE_3 vBIT(0xFF,2,14)
473 #define MASK_BUFFER1_SIZE_3 vBIT(0xFFFF,16,16)
474 #define MASK_BUFFER2_SIZE_3 vBIT(0xFFFF,32,16)
475 #define SET_BUFFER0_SIZE_3(val) vBIT(val,8,8)
476 #define SET_BUFFER1_SIZE_3(val) vBIT(val,16,16)
477 #define SET_BUFFER2_SIZE_3(val) vBIT(val,32,16)
478 #define RXD_GET_BUFFER0_SIZE_3(Control_2) \
479 (u8)((Control_2 & MASK_BUFFER0_SIZE_3) >> 48)
480 #define RXD_GET_BUFFER1_SIZE_3(Control_2) \
481 (u16)((Control_2 & MASK_BUFFER1_SIZE_3) >> 32)
482 #define RXD_GET_BUFFER2_SIZE_3(Control_2) \
483 (u16)((Control_2 & MASK_BUFFER2_SIZE_3) >> 16)
493 /* Structure that represents the Rx descriptor block which contains
494 * 128 Rx descriptors.
496 typedef struct _RxD_block {
497 #define MAX_RXDS_PER_BLOCK_1 127
498 RxD1_t rxd[MAX_RXDS_PER_BLOCK_1];
501 #define END_OF_BLOCK 0xFEFFFFFFFFFFFFFFULL
502 u64 reserved_1; /* 0xFEFFFFFFFFFFFFFF to mark last
504 u64 reserved_2_pNext_RxD_block; /* Logical ptr to next */
505 u64 pNext_RxD_Blk_physical; /* Buff0_ptr.In a 32 bit arch
506 * the upper 32 bits should
510 #define SIZE_OF_BLOCK 4096
513 #define RXD_MODE_3A 1
514 #define RXD_MODE_3B 2
516 /* Structure to hold virtual addresses of Buf0 and Buf1 in
518 typedef struct bufAdd {
525 /* Structure which stores all the MAC control parameters */
527 /* This structure stores the offset of the RxD in the ring
528 * from which the Rx Interrupt processor can start picking
529 * up the RxDs for processing.
531 typedef struct _rx_curr_get_info_t {
535 } rx_curr_get_info_t;
537 typedef rx_curr_get_info_t rx_curr_put_info_t;
539 /* This structure stores the offset of the TxDl in the FIFO
540 * from which the Tx Interrupt processor can start picking
541 * up the TxDLs for send complete interrupt processing.
546 } tx_curr_get_info_t;
548 typedef tx_curr_get_info_t tx_curr_put_info_t;
551 typedef struct rxd_info {
556 /* Structure that holds the Phy and virt addresses of the Blocks */
557 typedef struct rx_block_info {
558 void *block_virt_addr;
559 dma_addr_t block_dma_addr;
563 /* pre declaration of the nic structure */
564 typedef struct s2io_nic nic_t;
566 /* Ring specific structure */
567 typedef struct ring_info {
568 /* The ring number */
572 * Place holders for the virtual and physical addresses of
575 rx_block_info_t rx_blocks[MAX_RX_BLOCKS_PER_RING];
580 * Put pointer info which indictes which RxD has to be replenished
583 rx_curr_put_info_t rx_curr_put_info;
586 * Get pointer info which indictes which is the last RxD that was
587 * processed by the driver.
589 rx_curr_get_info_t rx_curr_get_info;
591 #ifndef CONFIG_S2IO_NAPI
592 /* Index to the absolute position of the put pointer of Rx ring */
596 /* Buffer Address store. */
601 /* Fifo specific structure */
602 typedef struct fifo_info {
606 /* Maximum TxDs per TxDL */
609 /* Place holder of all the TX List's Phy and Virt addresses. */
610 list_info_hold_t *list_info;
613 * Current offset within the tx FIFO where driver would write
616 tx_curr_put_info_t tx_curr_put_info;
619 * Current offset within tx FIFO from where the driver would start freeing
622 tx_curr_get_info_t tx_curr_get_info;
627 /* Infomation related to the Tx and Rx FIFOs and Rings of Xena
628 * is maintained in this structure.
630 typedef struct mac_info {
632 /* logical pointer of start of each Tx FIFO */
633 TxFIFO_element_t __iomem *tx_FIFO_start[MAX_TX_FIFOS];
635 /* Fifo specific structure */
636 fifo_info_t fifos[MAX_TX_FIFOS];
638 /* Save virtual address of TxD page with zero DMA addr(if any) */
639 void *zerodma_virt_addr;
642 /* Ring specific structure */
643 ring_info_t rings[MAX_RX_RINGS];
646 u16 mc_pause_threshold_q0q3;
647 u16 mc_pause_threshold_q4q7;
649 void *stats_mem; /* orignal pointer to allocated mem */
650 dma_addr_t stats_mem_phy; /* Physical address of the stat block */
652 StatInfo_t *stats_info; /* Logical address of the stat block */
655 /* structure representing the user defined MAC addresses */
661 /* Default Tunable parameters of the NIC. */
662 #define DEFAULT_FIFO_LEN 4096
663 #define SMALL_BLK_CNT 30
664 #define LARGE_BLK_CNT 100
667 * Structure to keep track of the MSI-X vectors and the corresponding
668 * argument registered against each vector
670 #define MAX_REQUESTED_MSI_X 17
671 struct s2io_msix_entry
678 #define MSIX_FIFO_TYPE 1
679 #define MSIX_RING_TYPE 2
682 #define MSIX_REGISTERED_SUCCESS 0xAA
685 struct msix_info_st {
690 /* Data structure to represent a LRO session */
692 struct sk_buff *parent;
708 /* Structure representing one instance of the NIC */
711 #ifdef CONFIG_S2IO_NAPI
713 * Count of packets to be processed in a given iteration, it will be indicated
714 * by the quota field of the device structure when NAPI is enabled.
718 struct net_device *dev;
719 mac_info_t mac_control;
720 struct config_param config;
721 struct pci_dev *pdev;
724 #define MAX_MAC_SUPPORTED 16
725 #define MAX_SUPPORTED_MULTICASTS MAX_MAC_SUPPORTED
727 macaddr_t def_mac_addr[MAX_MAC_SUPPORTED];
728 macaddr_t pre_mac_addr[MAX_MAC_SUPPORTED];
730 struct net_device_stats stats;
732 int device_close_flag;
733 int device_enabled_once;
736 struct tasklet_struct task;
737 volatile unsigned long tasklet_status;
739 /* Timer that handles I/O errors/exceptions */
740 struct timer_list alarm_timer;
742 /* Space to back up the PCI config space */
743 u32 config_space[256 / sizeof(u32)];
745 atomic_t rx_bufs_left[MAX_RX_RINGS];
748 #ifndef CONFIG_S2IO_NAPI
755 #define MAX_ADDRS_SUPPORTED 64
758 usr_addr_t usr_addrs[MAX_ADDRS_SUPPORTED];
769 /* Id timer, used to blink NIC to physically identify NIC. */
770 struct timer_list id_timer;
772 /* Restart timer, used to restart NIC if the device is stuck and
773 * a schedule task that will set the correct Link state once the
774 * NIC's PHY has stabilized after a state change.
776 struct work_struct rst_timer_task;
777 struct work_struct set_link_task;
779 /* Flag that can be used to turn on or turn off the Rx checksum
784 /* after blink, the adapter must be restored with original
789 /* Last known link state. */
798 volatile unsigned long link_state;
799 struct vlan_group *vlgrp;
800 #define MSIX_FLG 0xA5
801 struct msix_entry *entries;
802 struct s2io_msix_entry *s2io_entries;
806 struct msix_info_st msix_info[0x3f];
808 #define XFRAME_I_DEVICE 1
809 #define XFRAME_II_DEVICE 2
812 #define MAX_LRO_SESSIONS 32
813 lro_t lro0_n[MAX_LRO_SESSIONS];
814 unsigned long clubbed_frms_cnt;
815 unsigned long sending_both;
817 u16 lro_max_aggr_per_sess;
829 #define RESET_ERROR 1;
832 /* OS related system calls */
834 static inline u64 readq(void __iomem *addr)
837 ret = readl(addr + 4);
846 static inline void writeq(u64 val, void __iomem *addr)
848 writel((u32) (val), addr);
849 writel((u32) (val >> 32), (addr + 4));
852 /* In 32 bit modes, some registers have to be written in a
853 * particular order to expect correct hardware operation. The
854 * macro SPECIAL_REG_WRITE is used to perform such ordered
855 * writes. Defines UF (Upper First) and LF (Lower First) will
856 * be used to specify the required write order.
860 static inline void SPECIAL_REG_WRITE(u64 val, void __iomem *addr, int order)
863 writel((u32) (val), addr);
864 writel((u32) (val >> 32), (addr + 4));
866 writel((u32) (val >> 32), (addr + 4));
867 writel((u32) (val), addr);
871 #define SPECIAL_REG_WRITE(val, addr, dummy) writeq(val, addr)
874 /* Interrupt related values of Xena */
876 #define ENABLE_INTRS 1
877 #define DISABLE_INTRS 2
879 /* Highest level interrupt blocks */
880 #define TX_PIC_INTR (0x0001<<0)
881 #define TX_DMA_INTR (0x0001<<1)
882 #define TX_MAC_INTR (0x0001<<2)
883 #define TX_XGXS_INTR (0x0001<<3)
884 #define TX_TRAFFIC_INTR (0x0001<<4)
885 #define RX_PIC_INTR (0x0001<<5)
886 #define RX_DMA_INTR (0x0001<<6)
887 #define RX_MAC_INTR (0x0001<<7)
888 #define RX_XGXS_INTR (0x0001<<8)
889 #define RX_TRAFFIC_INTR (0x0001<<9)
890 #define MC_INTR (0x0001<<10)
891 #define ENA_ALL_INTRS ( TX_PIC_INTR | \
903 /* Interrupt masks for the general interrupt mask register */
904 #define DISABLE_ALL_INTRS 0xFFFFFFFFFFFFFFFFULL
906 #define TXPIC_INT_M BIT(0)
907 #define TXDMA_INT_M BIT(1)
908 #define TXMAC_INT_M BIT(2)
909 #define TXXGXS_INT_M BIT(3)
910 #define TXTRAFFIC_INT_M BIT(8)
911 #define PIC_RX_INT_M BIT(32)
912 #define RXDMA_INT_M BIT(33)
913 #define RXMAC_INT_M BIT(34)
914 #define MC_INT_M BIT(35)
915 #define RXXGXS_INT_M BIT(36)
916 #define RXTRAFFIC_INT_M BIT(40)
918 /* PIC level Interrupts TODO*/
920 /* DMA level Inressupts */
921 #define TXDMA_PFC_INT_M BIT(0)
922 #define TXDMA_PCC_INT_M BIT(2)
924 /* PFC block interrupts */
925 #define PFC_MISC_ERR_1 BIT(0) /* Interrupt to indicate FIFO full */
927 /* PCC block interrupts. */
928 #define PCC_FB_ECC_ERR vBIT(0xff, 16, 8) /* Interrupt to indicate
931 #define RXD_GET_VLAN_TAG(Control_2) (u16)(Control_2 & MASK_VLAN_TAG)
933 * Prototype declaration.
935 static int __devinit s2io_init_nic(struct pci_dev *pdev,
936 const struct pci_device_id *pre);
937 static void __devexit s2io_rem_nic(struct pci_dev *pdev);
938 static int init_shared_mem(struct s2io_nic *sp);
939 static void free_shared_mem(struct s2io_nic *sp);
940 static int init_nic(struct s2io_nic *nic);
941 static void rx_intr_handler(ring_info_t *ring_data);
942 static void tx_intr_handler(fifo_info_t *fifo_data);
943 static void alarm_intr_handler(struct s2io_nic *sp);
945 static int s2io_starter(void);
946 static void s2io_tx_watchdog(struct net_device *dev);
947 static void s2io_tasklet(unsigned long dev_addr);
948 static void s2io_set_multicast(struct net_device *dev);
949 static int rx_osm_handler(ring_info_t *ring_data, RxD_t * rxdp);
950 static void s2io_link(nic_t * sp, int link);
951 #if defined(CONFIG_S2IO_NAPI)
952 static int s2io_poll(struct net_device *dev, int *budget);
954 static void s2io_init_pci(nic_t * sp);
955 static int s2io_set_mac_addr(struct net_device *dev, u8 * addr);
956 static void s2io_alarm_handle(unsigned long data);
957 static int s2io_enable_msi(nic_t *nic);
958 static irqreturn_t s2io_msi_handle(int irq, void *dev_id, struct pt_regs *regs);
960 s2io_msix_ring_handle(int irq, void *dev_id, struct pt_regs *regs);
962 s2io_msix_fifo_handle(int irq, void *dev_id, struct pt_regs *regs);
963 static irqreturn_t s2io_isr(int irq, void *dev_id, struct pt_regs *regs);
964 static int verify_xena_quiescence(nic_t *sp, u64 val64, int flag);
965 static struct ethtool_ops netdev_ethtool_ops;
966 static void s2io_set_link(unsigned long data);
967 static int s2io_set_swapper(nic_t * sp);
968 static void s2io_card_down(nic_t *nic);
969 static int s2io_card_up(nic_t *nic);
970 static int get_xena_rev_id(struct pci_dev *pdev);
971 static void restore_xmsi_data(nic_t *nic);
973 static int s2io_club_tcp_session(u8 *buffer, u8 **tcp, u32 *tcp_len, lro_t **lro, RxD_t *rxdp, nic_t *sp);
974 static void clear_lro_session(lro_t *lro);
975 static void queue_rx_frame(struct sk_buff *skb);
976 static void update_L3L4_header(nic_t *sp, lro_t *lro);
977 static void lro_append_pkt(nic_t *sp, lro_t *lro, struct sk_buff *skb, u32 tcp_len);