2 * Copyright (C) 2003 - 2006 NetXen, Inc.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
20 * The full GNU General Public License is included in this distribution
21 * in the file called LICENSE.
23 * Contact Information:
26 * 3965 Freedom Circle, Fourth floor,
27 * Santa Clara, CA 95054
30 #ifndef _NETXEN_NIC_H_
31 #define _NETXEN_NIC_H_
33 #include <linux/module.h>
34 #include <linux/kernel.h>
35 #include <linux/types.h>
36 #include <linux/compiler.h>
37 #include <linux/slab.h>
38 #include <linux/delay.h>
39 #include <linux/init.h>
40 #include <linux/ioport.h>
41 #include <linux/pci.h>
42 #include <linux/netdevice.h>
43 #include <linux/etherdevice.h>
46 #include <linux/tcp.h>
47 #include <linux/skbuff.h>
48 #include <linux/version.h>
50 #include <linux/ethtool.h>
51 #include <linux/mii.h>
52 #include <linux/interrupt.h>
53 #include <linux/timer.h>
56 #include <linux/mman.h>
58 #include <asm/system.h>
60 #include <asm/byteorder.h>
61 #include <asm/uaccess.h>
62 #include <asm/pgtable.h>
64 #include "netxen_nic_hw.h"
66 #define NETXEN_NIC_BUILD_NO "4"
67 #define _NETXEN_NIC_LINUX_MAJOR 3
68 #define _NETXEN_NIC_LINUX_MINOR 3
69 #define _NETXEN_NIC_LINUX_SUBVERSION 2
70 #define NETXEN_NIC_LINUX_VERSIONID "3.3.2" "-" NETXEN_NIC_BUILD_NO
71 #define NETXEN_NIC_FW_VERSIONID "3.3.2"
73 #define RCV_DESC_RINGSIZE \
74 (sizeof(struct rcv_desc) * adapter->max_rx_desc_count)
75 #define STATUS_DESC_RINGSIZE \
76 (sizeof(struct status_desc)* adapter->max_rx_desc_count)
77 #define LRO_DESC_RINGSIZE \
78 (sizeof(rcvDesc_t) * adapter->max_lro_rx_desc_count)
80 (sizeof(struct netxen_cmd_buffer) * adapter->max_tx_desc_count)
81 #define RCV_BUFFSIZE \
82 (sizeof(struct netxen_rx_buffer) * rcv_desc->max_rx_desc_count)
83 #define find_diff_among(a,b,range) ((a)<(b)?((b)-(a)):((b)+(range)-(a)))
85 #define NETXEN_NETDEV_STATUS 0x1
86 #define NETXEN_RCV_PRODUCER_OFFSET 0
87 #define NETXEN_RCV_PEG_DB_ID 2
88 #define NETXEN_HOST_DUMMY_DMA_SIZE 1024
90 #define ADDR_IN_WINDOW1(off) \
91 ((off > NETXEN_CRB_PCIX_HOST2) && (off < NETXEN_CRB_MAX)) ? 1 : 0
93 * In netxen_nic_down(), we must wait for any pending callback requests into
94 * netxen_watchdog_task() to complete; eg otherwise the watchdog_timer could be
95 * reenabled right after it is deleted in netxen_nic_down(). FLUSH_SCHEDULED_WORK()
96 * does this synchronization.
98 * Normally, schedule_work()/flush_scheduled_work() could have worked, but
99 * netxen_nic_close() is invoked with kernel rtnl lock held. netif_carrier_off()
100 * call in netxen_nic_close() triggers a schedule_work(&linkwatch_work), and a
101 * subsequent call to flush_scheduled_work() in netxen_nic_down() would cause
102 * linkwatch_event() to be executed which also attempts to acquire the rtnl
103 * lock thus causing a deadlock.
106 #define SCHEDULE_WORK(tp) queue_work(netxen_workq, tp)
107 #define FLUSH_SCHEDULED_WORK() flush_workqueue(netxen_workq)
108 extern struct workqueue_struct *netxen_workq;
111 * normalize a 64MB crb address to 32MB PCI window
112 * To use NETXEN_CRB_NORMALIZE, window _must_ be set to 1
114 #define NETXEN_CRB_NORMAL(reg) \
115 ((reg) - NETXEN_CRB_PCIX_HOST2 + NETXEN_CRB_PCIX_HOST)
117 #define NETXEN_CRB_NORMALIZE(adapter, reg) \
118 pci_base_offset(adapter, NETXEN_CRB_NORMAL(reg))
120 #define DB_NORMALIZE(adapter, off) \
121 (adapter->ahw.db_base + (off))
123 #define NX_P2_C0 0x24
124 #define NX_P2_C1 0x25
126 #define FIRST_PAGE_GROUP_START 0
127 #define FIRST_PAGE_GROUP_END 0x100000
129 #define SECOND_PAGE_GROUP_START 0x4000000
130 #define SECOND_PAGE_GROUP_END 0x66BC000
132 #define THIRD_PAGE_GROUP_START 0x70E4000
133 #define THIRD_PAGE_GROUP_END 0x8000000
135 #define FIRST_PAGE_GROUP_SIZE FIRST_PAGE_GROUP_END - FIRST_PAGE_GROUP_START
136 #define SECOND_PAGE_GROUP_SIZE SECOND_PAGE_GROUP_END - SECOND_PAGE_GROUP_START
137 #define THIRD_PAGE_GROUP_SIZE THIRD_PAGE_GROUP_END - THIRD_PAGE_GROUP_START
139 #define MAX_RX_BUFFER_LENGTH 1760
140 #define MAX_RX_JUMBO_BUFFER_LENGTH 8062
141 #define MAX_RX_LRO_BUFFER_LENGTH ((48*1024)-512)
142 #define RX_DMA_MAP_LEN (MAX_RX_BUFFER_LENGTH - 2)
143 #define RX_JUMBO_DMA_MAP_LEN \
144 (MAX_RX_JUMBO_BUFFER_LENGTH - 2)
145 #define RX_LRO_DMA_MAP_LEN (MAX_RX_LRO_BUFFER_LENGTH - 2)
146 #define NETXEN_ROM_ROUNDUP 0x80000000ULL
149 * Maximum number of ring contexts
151 #define MAX_RING_CTX 1
153 /* Opcodes to be used with the commands */
156 /* The following opcodes are for IP checksum */
165 /* The following opcodes are for internal consumption. */
166 #define NETXEN_CONTROL_OP 0x10
167 #define PEGNET_REQUEST 0x11
169 #define MAX_NUM_CARDS 4
171 #define MAX_BUFFERS_PER_CMD 32
174 * Following are the states of the Phantom. Phantom will set them and
175 * Host will read to check if the fields are correct.
177 #define PHAN_INITIALIZE_START 0xff00
178 #define PHAN_INITIALIZE_FAILED 0xffff
179 #define PHAN_INITIALIZE_COMPLETE 0xff01
181 /* Host writes the following to notify that it has done the init-handshake */
182 #define PHAN_INITIALIZE_ACK 0xf00f
184 #define NUM_RCV_DESC_RINGS 3 /* No of Rcv Descriptor contexts */
186 /* descriptor types */
187 #define RCV_DESC_NORMAL 0x01
188 #define RCV_DESC_JUMBO 0x02
189 #define RCV_DESC_LRO 0x04
190 #define RCV_DESC_NORMAL_CTXID 0
191 #define RCV_DESC_JUMBO_CTXID 1
192 #define RCV_DESC_LRO_CTXID 2
194 #define RCV_DESC_TYPE(ID) \
195 ((ID == RCV_DESC_JUMBO_CTXID) \
197 : ((ID == RCV_DESC_LRO_CTXID) \
201 #define MAX_CMD_DESCRIPTORS 1024
202 #define MAX_RCV_DESCRIPTORS 16384
203 #define MAX_JUMBO_RCV_DESCRIPTORS 1024
204 #define MAX_LRO_RCV_DESCRIPTORS 64
205 #define MAX_RCVSTATUS_DESCRIPTORS MAX_RCV_DESCRIPTORS
206 #define MAX_JUMBO_RCV_DESC MAX_JUMBO_RCV_DESCRIPTORS
207 #define MAX_RCV_DESC MAX_RCV_DESCRIPTORS
208 #define MAX_RCVSTATUS_DESC MAX_RCV_DESCRIPTORS
209 #define MAX_EPG_DESCRIPTORS (MAX_CMD_DESCRIPTORS * 8)
210 #define NUM_RCV_DESC (MAX_RCV_DESC + MAX_JUMBO_RCV_DESCRIPTORS + \
211 MAX_LRO_RCV_DESCRIPTORS)
212 #define MIN_TX_COUNT 4096
213 #define MIN_RX_COUNT 4096
214 #define NETXEN_CTX_SIGNATURE 0xdee0
215 #define NETXEN_RCV_PRODUCER(ringid) (ringid)
216 #define MAX_FRAME_SIZE 0x10000 /* 64K MAX size for LSO */
218 #define PHAN_PEG_RCV_INITIALIZED 0xff01
219 #define PHAN_PEG_RCV_START_INITIALIZE 0xff00
221 #define get_next_index(index, length) \
222 (((index) + 1) & ((length) - 1))
224 #define get_index_range(index,length,count) \
225 (((index) + (count)) & ((length) - 1))
227 #define MPORT_SINGLE_FUNCTION_MODE 0x1111
229 extern unsigned long long netxen_dma_mask;
232 * NetXen host-peg signal message structure
234 * Bit 0-1 : peg_id => 0x2 for tx and 01 for rx
235 * Bit 2 : priv_id => must be 1
236 * Bit 3-17 : count => for doorbell
237 * Bit 18-27 : ctx_id => Context id
241 typedef u32 netxen_ctx_msg;
243 #define _netxen_set_bits(config_word, start, bits, val) {\
244 unsigned long long mask = (((1ULL << (bits)) - 1) << (start)); \
245 unsigned long long value = (val); \
246 (config_word) &= ~mask; \
247 (config_word) |= (((value) << (start)) & mask); \
250 #define netxen_set_msg_peg_id(config_word, val) \
251 _netxen_set_bits(config_word, 0, 2, val)
252 #define netxen_set_msg_privid(config_word) \
253 set_bit(2, (unsigned long*)&config_word)
254 #define netxen_set_msg_count(config_word, val) \
255 _netxen_set_bits(config_word, 3, 15, val)
256 #define netxen_set_msg_ctxid(config_word, val) \
257 _netxen_set_bits(config_word, 18, 10, val)
258 #define netxen_set_msg_opcode(config_word, val) \
259 _netxen_set_bits(config_word, 28, 4, val)
261 struct netxen_rcv_context {
262 u32 rcv_ring_addr_lo;
263 u32 rcv_ring_addr_hi;
268 struct netxen_ring_ctx {
270 /* one command ring */
271 u64 cmd_consumer_offset;
272 u32 cmd_ring_addr_lo;
273 u32 cmd_ring_addr_hi;
277 /* three receive rings */
278 struct netxen_rcv_context rcv_ctx[3];
280 /* one status ring */
281 u32 sts_ring_addr_lo;
282 u32 sts_ring_addr_hi;
286 } __attribute__ ((aligned(64)));
289 * Following data structures describe the descriptors that will be used.
290 * Added fileds of tcpHdrSize and ipHdrSize, The driver needs to do it only when
291 * we are doing LSO (above the 1500 size packet) only.
295 * The size of reference handle been changed to 16 bits to pass the MSS fields
299 #define FLAGS_CHECKSUM_ENABLED 0x01
300 #define FLAGS_LSO_ENABLED 0x02
301 #define FLAGS_IPSEC_SA_ADD 0x04
302 #define FLAGS_IPSEC_SA_DELETE 0x08
303 #define FLAGS_VLAN_TAGGED 0x10
305 #define netxen_set_cmd_desc_port(cmd_desc, var) \
306 ((cmd_desc)->port_ctxid |= ((var) & 0x0F))
308 #define netxen_set_cmd_desc_flags(cmd_desc, val) \
309 _netxen_set_bits((cmd_desc)->flags_opcode, 0, 7, val)
310 #define netxen_set_cmd_desc_opcode(cmd_desc, val) \
311 _netxen_set_bits((cmd_desc)->flags_opcode, 7, 6, val)
313 #define netxen_set_cmd_desc_num_of_buff(cmd_desc, val) \
314 _netxen_set_bits((cmd_desc)->num_of_buffers_total_length, 0, 8, val);
315 #define netxen_set_cmd_desc_totallength(cmd_desc, val) \
316 _netxen_set_bits((cmd_desc)->num_of_buffers_total_length, 8, 24, val);
318 #define netxen_get_cmd_desc_opcode(cmd_desc) \
319 (((cmd_desc)->flags_opcode >> 7) & 0x003F)
320 #define netxen_get_cmd_desc_totallength(cmd_desc) \
321 (((cmd_desc)->num_of_buffers_total_length >> 8) & 0x0FFFFFF)
323 struct cmd_desc_type0 {
324 u8 tcp_hdr_offset; /* For LSO only */
325 u8 ip_hdr_offset; /* For LSO only */
326 /* Bit pattern: 0-6 flags, 7-12 opcode, 13-15 unused */
328 /* Bit pattern: 0-7 total number of segments,
329 8-31 Total size of the packet */
330 u32 num_of_buffers_total_length;
339 u16 reference_handle; /* changed to u16 to add mss */
340 u16 mss; /* passed by NDIS_PACKET for LSO */
341 /* Bit pattern 0-3 port, 0-3 ctx id */
343 u8 total_hdr_length; /* LSO only : MAC+IP+TCP Hdr size */
344 u16 conn_id; /* IPSec offoad only */
376 } __attribute__ ((aligned(64)));
378 /* Note: sizeof(rcv_desc) should always be a mutliple of 2 */
380 u16 reference_handle;
382 u32 buffer_length; /* allocated buffer length (usually 2K) */
386 /* opcode field in status_desc */
387 #define RCV_NIC_PKT (0xA)
388 #define STATUS_NIC_PKT ((RCV_NIC_PKT) << 12)
390 /* for status field in status_desc */
391 #define STATUS_NEED_CKSUM (1)
392 #define STATUS_CKSUM_OK (2)
394 /* owner bits of status_desc */
395 #define STATUS_OWNER_HOST (0x1)
396 #define STATUS_OWNER_PHANTOM (0x2)
398 #define NETXEN_PROT_IP (1)
399 #define NETXEN_PROT_UNKNOWN (0)
401 /* Note: sizeof(status_desc) should always be a mutliple of 2 */
403 #define netxen_get_sts_desc_lro_cnt(status_desc) \
404 ((status_desc)->lro & 0x7F)
405 #define netxen_get_sts_desc_lro_last_frag(status_desc) \
406 (((status_desc)->lro & 0x80) >> 7)
408 #define netxen_get_sts_port(status_desc) \
409 ((status_desc)->status_desc_data & 0x0F)
410 #define netxen_get_sts_status(status_desc) \
411 (((status_desc)->status_desc_data >> 4) & 0x0F)
412 #define netxen_get_sts_type(status_desc) \
413 (((status_desc)->status_desc_data >> 8) & 0x0F)
414 #define netxen_get_sts_totallength(status_desc) \
415 (((status_desc)->status_desc_data >> 12) & 0xFFFF)
416 #define netxen_get_sts_refhandle(status_desc) \
417 (((status_desc)->status_desc_data >> 28) & 0xFFFF)
418 #define netxen_get_sts_prot(status_desc) \
419 (((status_desc)->status_desc_data >> 44) & 0x0F)
420 #define netxen_get_sts_owner(status_desc) \
421 (((status_desc)->status_desc_data >> 56) & 0x03)
422 #define netxen_get_sts_opcode(status_desc) \
423 (((status_desc)->status_desc_data >> 58) & 0x03F)
425 #define netxen_clear_sts_owner(status_desc) \
426 ((status_desc)->status_desc_data &= \
427 ~(((unsigned long long)3) << 56 ))
428 #define netxen_set_sts_owner(status_desc, val) \
429 ((status_desc)->status_desc_data |= \
430 (((unsigned long long)((val) & 0x3)) << 56 ))
433 /* Bit pattern: 0-3 port, 4-7 status, 8-11 type, 12-27 total_length
434 28-43 reference_handle, 44-47 protocol, 48-52 unused
435 53-55 desc_cnt, 56-57 owner, 58-63 opcode
437 u64 status_desc_data;
442 /* Bit pattern: 0-6 lro_count indicates frag sequence,
443 7 last_frag indicates last frag */
445 } __attribute__ ((aligned(8)));
448 NETXEN_RCV_PEG_0 = 0,
451 /* The version of the main data structure */
452 #define NETXEN_BDINFO_VERSION 1
454 /* Magic number to let user know flash is programmed */
455 #define NETXEN_BDINFO_MAGIC 0x12345678
457 /* Max number of Gig ports on a Phantom board */
458 #define NETXEN_MAX_PORTS 4
461 NETXEN_BRDTYPE_P1_BD = 0x0000,
462 NETXEN_BRDTYPE_P1_SB = 0x0001,
463 NETXEN_BRDTYPE_P1_SMAX = 0x0002,
464 NETXEN_BRDTYPE_P1_SOCK = 0x0003,
466 NETXEN_BRDTYPE_P2_SOCK_31 = 0x0008,
467 NETXEN_BRDTYPE_P2_SOCK_35 = 0x0009,
468 NETXEN_BRDTYPE_P2_SB35_4G = 0x000a,
469 NETXEN_BRDTYPE_P2_SB31_10G = 0x000b,
470 NETXEN_BRDTYPE_P2_SB31_2G = 0x000c,
472 NETXEN_BRDTYPE_P2_SB31_10G_IMEZ = 0x000d,
473 NETXEN_BRDTYPE_P2_SB31_10G_HMEZ = 0x000e,
474 NETXEN_BRDTYPE_P2_SB31_10G_CX4 = 0x000f
478 NETXEN_BRDMFG_INVENTEC = 1
482 MEM_ORG_128Mbx4 = 0x0, /* DDR1 only */
483 MEM_ORG_128Mbx8 = 0x1, /* DDR1 only */
484 MEM_ORG_128Mbx16 = 0x2, /* DDR1 only */
485 MEM_ORG_256Mbx4 = 0x3,
486 MEM_ORG_256Mbx8 = 0x4,
487 MEM_ORG_256Mbx16 = 0x5,
488 MEM_ORG_512Mbx4 = 0x6,
489 MEM_ORG_512Mbx8 = 0x7,
490 MEM_ORG_512Mbx16 = 0x8,
493 MEM_ORG_1Gbx16 = 0xb,
496 MEM_ORG_2Gbx16 = 0xe,
497 MEM_ORG_128Mbx32 = 0x10002, /* GDDR only */
498 MEM_ORG_256Mbx32 = 0x10005 /* GDDR only */
499 } netxen_mn_mem_org_t;
502 MEM_ORG_512Kx36 = 0x0,
505 } netxen_sn_mem_org_t;
510 MEM_DEPTH_16MB = 0x3,
511 MEM_DEPTH_32MB = 0x4,
512 MEM_DEPTH_64MB = 0x5,
513 MEM_DEPTH_128MB = 0x6,
514 MEM_DEPTH_256MB = 0x7,
515 MEM_DEPTH_512MB = 0x8,
520 MEM_DEPTH_16GB = 0xd,
522 } netxen_mem_depth_t;
524 struct netxen_board_info {
536 u32 port_mask; /* available niu ports */
537 u32 peg_mask; /* available pegs */
538 u32 icache_ok; /* can we run with icache? */
539 u32 dcache_ok; /* can we run with dcache? */
547 /* MN-related config */
548 u32 mn_sync_mode; /* enable/ sync shift cclk/ sync shift mclk */
549 u32 mn_sync_shift_cclk;
550 u32 mn_sync_shift_mclk;
552 u32 mn_crystal_freq; /* in MHz */
553 u32 mn_speed; /* in MHz */
556 u32 mn_ranks_0; /* ranks per slot */
557 u32 mn_ranks_1; /* ranks per slot */
568 u32 mn_mode_reg; /* MIU DDR Mode Register */
569 u32 mn_ext_mode_reg; /* MIU DDR Extended Mode Register */
570 u32 mn_timing_0; /* MIU Memory Control Timing Rgister */
571 u32 mn_timing_1; /* MIU Extended Memory Ctrl Timing Register */
572 u32 mn_timing_2; /* MIU Extended Memory Ctrl Timing2 Register */
574 /* SN-related config */
575 u32 sn_sync_mode; /* enable/ sync shift cclk / sync shift mclk */
576 u32 sn_pt_mode; /* pass through mode */
591 u32 magic; /* indicates flash has been initialized */
598 #define FLASH_NUM_PORTS (4)
600 struct netxen_flash_mac_addr {
604 struct netxen_user_old_info {
616 /* primary image status */
618 u32 secondary_present;
620 /* MAC address , 4 ports */
621 struct netxen_flash_mac_addr mac_addr[FLASH_NUM_PORTS];
623 #define FLASH_NUM_MAC_PER_PORT 32
624 struct netxen_user_info {
625 u8 flash_md5[16 * 64];
632 /* primary image status */
634 u32 secondary_present;
636 /* MAC address , 4 ports, 32 address per port */
637 u64 mac_addr[FLASH_NUM_PORTS * FLASH_NUM_MAC_PER_PORT];
641 /* Any user defined data */
645 * Flash Layout - new format.
647 struct netxen_new_user_info {
648 u8 flash_md5[16 * 64];
655 /* primary image status */
657 u32 secondary_present;
659 /* MAC address , 4 ports, 32 address per port */
660 u64 mac_addr[FLASH_NUM_PORTS * FLASH_NUM_MAC_PER_PORT];
664 /* Any user defined data */
667 #define SECONDARY_IMAGE_PRESENT 0xb3b4b5b6
668 #define SECONDARY_IMAGE_ABSENT 0xffffffff
669 #define PRIMARY_IMAGE_GOOD 0x5a5a5a5a
670 #define PRIMARY_IMAGE_BAD 0xffffffff
672 /* Flash memory map */
674 CRBINIT_START = 0, /* Crbinit section */
675 BRDCFG_START = 0x4000, /* board config */
676 INITCODE_START = 0x6000, /* pegtune code */
677 BOOTLD_START = 0x10000, /* bootld */
678 IMAGE_START = 0x43000, /* compressed image */
679 SECONDARY_START = 0x200000, /* backup images */
680 PXE_START = 0x3E0000, /* user defined region */
681 USER_START = 0x3E8000, /* User defined region for new boards */
682 FIXED_START = 0x3F0000 /* backup of crbinit */
683 } netxen_flash_map_t;
685 #define USER_START_OLD PXE_START /* for backward compatibility */
687 #define FLASH_START (CRBINIT_START)
688 #define INIT_SECTOR (0)
689 #define PRIMARY_START (BOOTLD_START)
690 #define FLASH_CRBINIT_SIZE (0x4000)
691 #define FLASH_BRDCFG_SIZE (sizeof(struct netxen_board_info))
692 #define FLASH_USER_SIZE (sizeof(struct netxen_user_info)/sizeof(u32))
693 #define FLASH_SECONDARY_SIZE (USER_START-SECONDARY_START)
694 #define NUM_PRIMARY_SECTORS (0x20)
695 #define NUM_CONFIG_SECTORS (1)
696 #define PFX "NetXen: "
697 extern char netxen_nic_driver_name[];
699 /* Note: Make sure to not call this before adapter->port is valid */
700 #if !defined(NETXEN_DEBUG)
701 #define DPRINTK(klevel, fmt, args...) do { \
704 #define DPRINTK(klevel, fmt, args...) do { \
705 printk(KERN_##klevel PFX "%s: %s: " fmt, __FUNCTION__,\
706 (adapter != NULL && \
707 adapter->port[0] != NULL && \
708 adapter->port[0]->netdev != NULL) ? \
709 adapter->port[0]->netdev->name : NULL, \
713 /* Number of status descriptors to handle per interrupt */
714 #define MAX_STATUS_HANDLE (128)
717 * netxen_skb_frag{} is to contain mapping info for each SG list. This
718 * has to be freed when DMA is complete. This is part of netxen_tx_buffer{}.
720 struct netxen_skb_frag {
725 /* Following defines are for the state of the buffers */
726 #define NETXEN_BUFFER_FREE 0
727 #define NETXEN_BUFFER_BUSY 1
730 * There will be one netxen_buffer per skb packet. These will be
731 * used to save the dma info for pci_unmap_page()
733 struct netxen_cmd_buffer {
735 struct netxen_skb_frag frag_array[MAX_BUFFERS_PER_CMD + 1];
741 unsigned long time_stamp;
745 /* In rx_buffer, we do not need multiple fragments as is a single buffer */
746 struct netxen_rx_buffer {
751 u32 lro_expected_frags;
752 u32 lro_current_frags;
757 #define NETXEN_NIC_GBE 0x01
758 #define NETXEN_NIC_XGBE 0x02
761 * One hardware_context{} per adapter
762 * contains interrupt info as well shared hardware info.
764 struct netxen_hardware_context {
765 struct pci_dev *pdev;
766 void __iomem *pci_base0;
767 void __iomem *pci_base1;
768 void __iomem *pci_base2;
769 void __iomem *db_base;
770 unsigned long db_len;
775 struct netxen_board_info boardcfg;
778 /* Address of cmd ring in Phantom */
779 struct cmd_desc_type0 *cmd_desc_head;
780 struct pci_dev *cmd_desc_pdev;
781 dma_addr_t cmd_desc_phys_addr;
782 struct netxen_adapter *adapter;
785 #define RCV_RING_LRO RCV_DESC_LRO
787 #define MINIMUM_ETHERNET_FRAME_SIZE 64 /* With FCS */
788 #define ETHERNET_FCS_SIZE 4
790 struct netxen_adapter_stats {
805 * Rcv Descriptor Context. One such per Rcv Descriptor. There may
806 * be one Rcv Descriptor for normal packets, one for jumbo and may be others.
808 struct netxen_rcv_desc_ctx {
811 u32 rcv_pending; /* Num of bufs posted in phantom */
812 u32 rcv_free; /* Num of bufs in free list */
813 dma_addr_t phys_addr;
814 struct pci_dev *phys_pdev;
815 struct rcv_desc *desc_head; /* address of rx ring in Phantom */
816 u32 max_rx_desc_count;
819 struct netxen_rx_buffer *rx_buf_arr; /* rx buffers for receive */
824 * Receive context. There is one such structure per instance of the
825 * receive processing. Any state information that is relevant to
826 * the receive, and is must be in this structure. The global data may be
829 struct netxen_recv_context {
830 struct netxen_rcv_desc_ctx rcv_desc[NUM_RCV_DESC_RINGS];
831 u32 status_rx_producer;
832 u32 status_rx_consumer;
833 dma_addr_t rcv_status_desc_phys_addr;
834 struct pci_dev *rcv_status_desc_pdev;
835 struct status_desc *rcv_status_desc_head;
838 #define NETXEN_NIC_MSI_ENABLED 0x02
839 #define NETXEN_DMA_MASK 0xfffffffe
840 #define NETXEN_DB_MAPSIZE_BYTES 0x1000
842 struct netxen_dummy_dma {
844 dma_addr_t phys_addr;
847 struct netxen_adapter {
848 struct netxen_hardware_context ahw;
849 int port_count; /* Number of configured ports */
850 int active_ports; /* Number of open ports */
851 struct netxen_port *port[NETXEN_MAX_PORTS]; /* ptr to each port */
854 struct work_struct watchdog_task;
855 struct timer_list watchdog_timer;
862 u32 last_cmd_consumer;
863 u32 max_tx_desc_count;
864 u32 max_rx_desc_count;
865 u32 max_jumbo_rx_desc_count;
866 u32 max_lro_rx_desc_count;
867 /* Num of instances active on cmd buffer ring */
868 u32 proc_cmd_buf_counter;
870 u32 num_threads, total_threads; /*Use to keep track of xmit threads */
877 struct netxen_adapter_stats stats;
879 struct netxen_cmd_buffer *cmd_buf_arr; /* Command buffers for xmit */
882 * Receive instances. These can be either one per port,
883 * or one per peg, etc.
885 struct netxen_recv_context recv_ctx[MAX_RCV_CTX];
888 struct netxen_dummy_dma dummy_dma;
890 /* Context interface shared between card and host */
891 struct netxen_ring_ctx *ctx_desc;
892 struct pci_dev *ctx_desc_pdev;
893 dma_addr_t ctx_desc_phys_addr;
894 int (*enable_phy_interrupts) (struct netxen_adapter *, int);
895 int (*disable_phy_interrupts) (struct netxen_adapter *, int);
896 void (*handle_phy_intr) (struct netxen_adapter *);
897 int (*macaddr_set) (struct netxen_port *, netxen_ethernet_macaddr_t);
898 int (*set_mtu) (struct netxen_port *, int);
899 int (*set_promisc) (struct netxen_adapter *, int,
900 netxen_niu_prom_mode_t);
901 int (*unset_promisc) (struct netxen_adapter *, int,
902 netxen_niu_prom_mode_t);
903 int (*phy_read) (struct netxen_adapter *, long phy, long reg, u32 *);
904 int (*phy_write) (struct netxen_adapter *, long phy, long reg, u32 val);
905 int (*init_port) (struct netxen_adapter *, int);
906 void (*init_niu) (struct netxen_adapter *);
907 int (*stop_port) (struct netxen_adapter *, int);
908 }; /* netxen_adapter structure */
910 /* Max number of xmit producer threads that can run simultaneously */
911 #define MAX_XMIT_PRODUCERS 16
913 struct netxen_port_stats {
937 struct netxen_adapter *adapter;
939 u16 portnum; /* GBE port number */
946 struct net_device *netdev;
947 struct pci_dev *pdev;
948 struct net_device_stats net_stats;
949 struct netxen_port_stats stats;
950 struct work_struct tx_timeout_task;
953 #define PCI_OFFSET_FIRST_RANGE(adapter, off) \
954 ((adapter)->ahw.pci_base0 + (off))
955 #define PCI_OFFSET_SECOND_RANGE(adapter, off) \
956 ((adapter)->ahw.pci_base1 + (off) - SECOND_PAGE_GROUP_START)
957 #define PCI_OFFSET_THIRD_RANGE(adapter, off) \
958 ((adapter)->ahw.pci_base2 + (off) - THIRD_PAGE_GROUP_START)
960 static inline void __iomem *pci_base_offset(struct netxen_adapter *adapter,
963 if ((off < FIRST_PAGE_GROUP_END) && (off >= FIRST_PAGE_GROUP_START)) {
964 return (adapter->ahw.pci_base0 + off);
965 } else if ((off < SECOND_PAGE_GROUP_END) &&
966 (off >= SECOND_PAGE_GROUP_START)) {
967 return (adapter->ahw.pci_base1 + off - SECOND_PAGE_GROUP_START);
968 } else if ((off < THIRD_PAGE_GROUP_END) &&
969 (off >= THIRD_PAGE_GROUP_START)) {
970 return (adapter->ahw.pci_base2 + off - THIRD_PAGE_GROUP_START);
975 static inline void __iomem *pci_base(struct netxen_adapter *adapter,
978 if ((off < FIRST_PAGE_GROUP_END) && (off >= FIRST_PAGE_GROUP_START)) {
979 return adapter->ahw.pci_base0;
980 } else if ((off < SECOND_PAGE_GROUP_END) &&
981 (off >= SECOND_PAGE_GROUP_START)) {
982 return adapter->ahw.pci_base1;
983 } else if ((off < THIRD_PAGE_GROUP_END) &&
984 (off >= THIRD_PAGE_GROUP_START)) {
985 return adapter->ahw.pci_base2;
990 int netxen_niu_xgbe_enable_phy_interrupts(struct netxen_adapter *adapter,
992 int netxen_niu_gbe_enable_phy_interrupts(struct netxen_adapter *adapter,
994 int netxen_niu_xgbe_disable_phy_interrupts(struct netxen_adapter *adapter,
996 int netxen_niu_gbe_disable_phy_interrupts(struct netxen_adapter *adapter,
998 int netxen_niu_xgbe_clear_phy_interrupts(struct netxen_adapter *adapter,
1000 int netxen_niu_gbe_clear_phy_interrupts(struct netxen_adapter *adapter,
1002 void netxen_nic_xgbe_handle_phy_intr(struct netxen_adapter *adapter);
1003 void netxen_nic_gbe_handle_phy_intr(struct netxen_adapter *adapter);
1004 void netxen_niu_gbe_set_mii_mode(struct netxen_adapter *adapter, int port,
1006 void netxen_niu_gbe_set_gmii_mode(struct netxen_adapter *adapter, int port,
1008 int netxen_niu_gbe_phy_read(struct netxen_adapter *adapter, long phy, long reg,
1010 int netxen_niu_gbe_phy_write(struct netxen_adapter *adapter, long phy,
1011 long reg, __le32 val);
1013 /* Functions available from netxen_nic_hw.c */
1014 int netxen_nic_set_mtu_xgb(struct netxen_port *port, int new_mtu);
1015 int netxen_nic_set_mtu_gb(struct netxen_port *port, int new_mtu);
1016 void netxen_nic_init_niu_gb(struct netxen_adapter *adapter);
1017 void netxen_nic_pci_change_crbwindow(struct netxen_adapter *adapter, u32 wndw);
1018 void netxen_nic_reg_write(struct netxen_adapter *adapter, u64 off, u32 val);
1019 int netxen_nic_reg_read(struct netxen_adapter *adapter, u64 off);
1020 void netxen_nic_write_w0(struct netxen_adapter *adapter, u32 index, u32 value);
1021 void netxen_nic_read_w0(struct netxen_adapter *adapter, u32 index, u32 * value);
1023 int netxen_nic_get_board_info(struct netxen_adapter *adapter);
1024 int netxen_nic_hw_read_wx(struct netxen_adapter *adapter, u64 off, void *data,
1026 int netxen_nic_hw_write_wx(struct netxen_adapter *adapter, u64 off, void *data,
1028 void netxen_crb_writelit_adapter(struct netxen_adapter *adapter,
1029 unsigned long off, int data);
1031 /* Functions from netxen_nic_init.c */
1032 void netxen_free_adapter_offload(struct netxen_adapter *adapter);
1033 int netxen_initialize_adapter_offload(struct netxen_adapter *adapter);
1034 void netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val);
1035 void netxen_load_firmware(struct netxen_adapter *adapter);
1036 int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose);
1037 int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp);
1038 int netxen_rom_fast_write(struct netxen_adapter *adapter, int addr, int data);
1039 int netxen_rom_se(struct netxen_adapter *adapter, int addr);
1040 int netxen_do_rom_se(struct netxen_adapter *adapter, int addr);
1042 /* Functions from netxen_nic_isr.c */
1043 void netxen_nic_isr_other(struct netxen_adapter *adapter);
1044 void netxen_indicate_link_status(struct netxen_adapter *adapter, u32 port,
1046 void netxen_handle_port_int(struct netxen_adapter *adapter, u32 port,
1048 void netxen_nic_stop_all_ports(struct netxen_adapter *adapter);
1049 void netxen_initialize_adapter_sw(struct netxen_adapter *adapter);
1050 void netxen_initialize_adapter_hw(struct netxen_adapter *adapter);
1051 void *netxen_alloc(struct pci_dev *pdev, size_t sz, dma_addr_t * ptr,
1052 struct pci_dev **used_dev);
1053 void netxen_initialize_adapter_ops(struct netxen_adapter *adapter);
1054 int netxen_init_firmware(struct netxen_adapter *adapter);
1055 void netxen_free_hw_resources(struct netxen_adapter *adapter);
1056 void netxen_tso_check(struct netxen_adapter *adapter,
1057 struct cmd_desc_type0 *desc, struct sk_buff *skb);
1058 int netxen_nic_hw_resources(struct netxen_adapter *adapter);
1059 void netxen_nic_clear_stats(struct netxen_adapter *adapter);
1060 int netxen_nic_rx_has_work(struct netxen_adapter *adapter);
1061 int netxen_nic_tx_has_work(struct netxen_adapter *adapter);
1062 void netxen_watchdog_task(struct work_struct *work);
1063 void netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ctx,
1065 void netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter, u32 ctx,
1067 int netxen_process_cmd_ring(unsigned long data);
1068 u32 netxen_process_rcv_ring(struct netxen_adapter *adapter, int ctx, int max);
1069 void netxen_nic_set_multi(struct net_device *netdev);
1070 int netxen_nic_change_mtu(struct net_device *netdev, int new_mtu);
1071 int netxen_nic_set_mac(struct net_device *netdev, void *p);
1072 struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev);
1074 static inline void netxen_nic_disable_int(struct netxen_adapter *adapter)
1077 * ISR_INT_MASK: Can be read from window 0 or 1.
1079 writel(0x7ff, PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_MASK));
1083 static inline void netxen_nic_enable_int(struct netxen_adapter *adapter)
1087 switch (adapter->ahw.board_type) {
1088 case NETXEN_NIC_GBE:
1091 case NETXEN_NIC_XGBE:
1099 writel(mask, PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_MASK));
1101 if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) {
1103 writel(mask, PCI_OFFSET_SECOND_RANGE(adapter,
1104 ISR_INT_TARGET_MASK));
1109 * NetXen Board information
1112 #define NETXEN_MAX_SHORT_NAME 16
1113 struct netxen_brdinfo {
1114 netxen_brdtype_t brdtype; /* type of board */
1115 long ports; /* max no of physical ports */
1116 char short_name[NETXEN_MAX_SHORT_NAME];
1119 static const struct netxen_brdinfo netxen_boards[] = {
1120 {NETXEN_BRDTYPE_P2_SB31_10G_CX4, 1, "XGb CX4"},
1121 {NETXEN_BRDTYPE_P2_SB31_10G_HMEZ, 1, "XGb HMEZ"},
1122 {NETXEN_BRDTYPE_P2_SB31_10G_IMEZ, 2, "XGb IMEZ"},
1123 {NETXEN_BRDTYPE_P2_SB31_10G, 1, "XGb XFP"},
1124 {NETXEN_BRDTYPE_P2_SB35_4G, 4, "Quad Gb"},
1125 {NETXEN_BRDTYPE_P2_SB31_2G, 2, "Dual Gb"},
1128 #define NUM_SUPPORTED_BOARDS (sizeof(netxen_boards)/sizeof(struct netxen_brdinfo))
1130 static inline void get_brd_port_by_type(u32 type, int *ports)
1133 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1134 if (netxen_boards[i].brdtype == type) {
1135 *ports = netxen_boards[i].ports;
1144 static inline void get_brd_name_by_type(u32 type, char *name)
1147 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1148 if (netxen_boards[i].brdtype == type) {
1149 strcpy(name, netxen_boards[i].short_name);
1159 int netxen_is_flash_supported(struct netxen_adapter *adapter);
1160 int netxen_get_flash_mac_addr(struct netxen_adapter *adapter, u64 mac[]);
1161 extern void netxen_change_ringparam(struct netxen_adapter *adapter);
1162 extern int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr,
1165 extern struct ethtool_ops netxen_nic_ethtool_ops;
1167 #endif /* __NETXEN_NIC_H_ */