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[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / drivers / net / ixgbe / ixgbe.h
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1 /*******************************************************************************
3 Intel 10 Gigabit PCI Express Linux driver
4 Copyright(c) 1999 - 2010 Intel Corporation.
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 more details.
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
22 Contact Information:
23 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
24 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
26 *******************************************************************************/
28 #ifndef _IXGBE_H_
29 #define _IXGBE_H_
31 #include <linux/types.h>
32 #include <linux/pci.h>
33 #include <linux/netdevice.h>
34 #include <linux/aer.h>
36 #include "ixgbe_type.h"
37 #include "ixgbe_common.h"
38 #include "ixgbe_dcb.h"
39 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
40 #define IXGBE_FCOE
41 #include "ixgbe_fcoe.h"
42 #endif /* CONFIG_FCOE or CONFIG_FCOE_MODULE */
43 #ifdef CONFIG_IXGBE_DCA
44 #include <linux/dca.h>
45 #endif
47 /* common prefix used by pr_<> macros */
48 #undef pr_fmt
49 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
51 /* TX/RX descriptor defines */
52 #define IXGBE_DEFAULT_TXD 512
53 #define IXGBE_MAX_TXD 4096
54 #define IXGBE_MIN_TXD 64
56 #define IXGBE_DEFAULT_RXD 512
57 #define IXGBE_MAX_RXD 4096
58 #define IXGBE_MIN_RXD 64
60 /* flow control */
61 #define IXGBE_DEFAULT_FCRTL 0x10000
62 #define IXGBE_MIN_FCRTL 0x40
63 #define IXGBE_MAX_FCRTL 0x7FF80
64 #define IXGBE_DEFAULT_FCRTH 0x20000
65 #define IXGBE_MIN_FCRTH 0x600
66 #define IXGBE_MAX_FCRTH 0x7FFF0
67 #define IXGBE_DEFAULT_FCPAUSE 0xFFFF
68 #define IXGBE_MIN_FCPAUSE 0
69 #define IXGBE_MAX_FCPAUSE 0xFFFF
71 /* Supported Rx Buffer Sizes */
72 #define IXGBE_RXBUFFER_64 64 /* Used for packet split */
73 #define IXGBE_RXBUFFER_128 128 /* Used for packet split */
74 #define IXGBE_RXBUFFER_256 256 /* Used for packet split */
75 #define IXGBE_RXBUFFER_2048 2048
76 #define IXGBE_RXBUFFER_4096 4096
77 #define IXGBE_RXBUFFER_8192 8192
78 #define IXGBE_MAX_RXBUFFER 16384 /* largest size for a single descriptor */
80 #define IXGBE_RX_HDR_SIZE IXGBE_RXBUFFER_256
82 #define MAXIMUM_ETHERNET_VLAN_SIZE (ETH_FRAME_LEN + ETH_FCS_LEN + VLAN_HLEN)
84 /* How many Rx Buffers do we bundle into one write to the hardware ? */
85 #define IXGBE_RX_BUFFER_WRITE 16 /* Must be power of 2 */
87 #define IXGBE_TX_FLAGS_CSUM (u32)(1)
88 #define IXGBE_TX_FLAGS_VLAN (u32)(1 << 1)
89 #define IXGBE_TX_FLAGS_TSO (u32)(1 << 2)
90 #define IXGBE_TX_FLAGS_IPV4 (u32)(1 << 3)
91 #define IXGBE_TX_FLAGS_FCOE (u32)(1 << 4)
92 #define IXGBE_TX_FLAGS_FSO (u32)(1 << 5)
93 #define IXGBE_TX_FLAGS_VLAN_MASK 0xffff0000
94 #define IXGBE_TX_FLAGS_VLAN_PRIO_MASK 0x0000e000
95 #define IXGBE_TX_FLAGS_VLAN_SHIFT 16
97 #define IXGBE_MAX_RSC_INT_RATE 162760
99 #define IXGBE_MAX_VF_MC_ENTRIES 30
100 #define IXGBE_MAX_VF_FUNCTIONS 64
101 #define IXGBE_MAX_VFTA_ENTRIES 128
102 #define MAX_EMULATION_MAC_ADDRS 16
103 #define VMDQ_P(p) ((p) + adapter->num_vfs)
105 struct vf_data_storage {
106 unsigned char vf_mac_addresses[ETH_ALEN];
107 u16 vf_mc_hashes[IXGBE_MAX_VF_MC_ENTRIES];
108 u16 num_vf_mc_hashes;
109 u16 default_vf_vlan_id;
110 u16 vlans_enabled;
111 bool clear_to_send;
112 bool pf_set_mac;
113 u16 pf_vlan; /* When set, guest VLAN config not allowed. */
114 u16 pf_qos;
117 /* wrapper around a pointer to a socket buffer,
118 * so a DMA handle can be stored along with the buffer */
119 struct ixgbe_tx_buffer {
120 struct sk_buff *skb;
121 dma_addr_t dma;
122 unsigned long time_stamp;
123 u16 length;
124 u16 next_to_watch;
125 u16 mapped_as_page;
128 struct ixgbe_rx_buffer {
129 struct sk_buff *skb;
130 dma_addr_t dma;
131 struct page *page;
132 dma_addr_t page_dma;
133 unsigned int page_offset;
136 struct ixgbe_queue_stats {
137 u64 packets;
138 u64 bytes;
141 struct ixgbe_ring {
142 void *desc; /* descriptor ring memory */
143 union {
144 struct ixgbe_tx_buffer *tx_buffer_info;
145 struct ixgbe_rx_buffer *rx_buffer_info;
147 u8 atr_sample_rate;
148 u8 atr_count;
149 u16 count; /* amount of descriptors */
150 u16 rx_buf_len;
151 u16 next_to_use;
152 u16 next_to_clean;
154 u8 queue_index; /* needed for multiqueue queue management */
156 #define IXGBE_RING_RX_PS_ENABLED (u8)(1)
157 u8 flags; /* per ring feature flags */
158 u16 head;
159 u16 tail;
161 unsigned int total_bytes;
162 unsigned int total_packets;
164 #ifdef CONFIG_IXGBE_DCA
165 /* cpu for tx queue */
166 int cpu;
167 #endif
169 u16 work_limit; /* max work per interrupt */
170 u16 reg_idx; /* holds the special value that gets
171 * the hardware register offset
172 * associated with this ring, which is
173 * different for DCB and RSS modes
176 struct ixgbe_queue_stats stats;
177 unsigned long reinit_state;
178 int numa_node;
179 u64 rsc_count; /* stat for coalesced packets */
180 u64 rsc_flush; /* stats for flushed packets */
181 u32 restart_queue; /* track tx queue restarts */
182 u32 non_eop_descs; /* track hardware descriptor chaining */
184 unsigned int size; /* length in bytes */
185 dma_addr_t dma; /* phys. address of descriptor ring */
186 } ____cacheline_internodealigned_in_smp;
188 enum ixgbe_ring_f_enum {
189 RING_F_NONE = 0,
190 RING_F_DCB,
191 RING_F_VMDQ, /* SR-IOV uses the same ring feature */
192 RING_F_RSS,
193 RING_F_FDIR,
194 #ifdef IXGBE_FCOE
195 RING_F_FCOE,
196 #endif /* IXGBE_FCOE */
198 RING_F_ARRAY_SIZE /* must be last in enum set */
201 #define IXGBE_MAX_DCB_INDICES 8
202 #define IXGBE_MAX_RSS_INDICES 16
203 #define IXGBE_MAX_VMDQ_INDICES 64
204 #define IXGBE_MAX_FDIR_INDICES 64
205 #ifdef IXGBE_FCOE
206 #define IXGBE_MAX_FCOE_INDICES 8
207 #define MAX_RX_QUEUES (IXGBE_MAX_FDIR_INDICES + IXGBE_MAX_FCOE_INDICES)
208 #define MAX_TX_QUEUES (IXGBE_MAX_FDIR_INDICES + IXGBE_MAX_FCOE_INDICES)
209 #else
210 #define MAX_RX_QUEUES IXGBE_MAX_FDIR_INDICES
211 #define MAX_TX_QUEUES IXGBE_MAX_FDIR_INDICES
212 #endif /* IXGBE_FCOE */
213 struct ixgbe_ring_feature {
214 int indices;
215 int mask;
216 } ____cacheline_internodealigned_in_smp;
219 #define MAX_RX_PACKET_BUFFERS ((adapter->flags & IXGBE_FLAG_DCB_ENABLED) \
220 ? 8 : 1)
221 #define MAX_TX_PACKET_BUFFERS MAX_RX_PACKET_BUFFERS
223 /* MAX_MSIX_Q_VECTORS of these are allocated,
224 * but we only use one per queue-specific vector.
226 struct ixgbe_q_vector {
227 struct ixgbe_adapter *adapter;
228 unsigned int v_idx; /* index of q_vector within array, also used for
229 * finding the bit in EICR and friends that
230 * represents the vector for this ring */
231 struct napi_struct napi;
232 DECLARE_BITMAP(rxr_idx, MAX_RX_QUEUES); /* Rx ring indices */
233 DECLARE_BITMAP(txr_idx, MAX_TX_QUEUES); /* Tx ring indices */
234 u8 rxr_count; /* Rx ring count assigned to this vector */
235 u8 txr_count; /* Tx ring count assigned to this vector */
236 u8 tx_itr;
237 u8 rx_itr;
238 u32 eitr;
241 /* Helper macros to switch between ints/sec and what the register uses.
242 * And yes, it's the same math going both ways. The lowest value
243 * supported by all of the ixgbe hardware is 8.
245 #define EITR_INTS_PER_SEC_TO_REG(_eitr) \
246 ((_eitr) ? (1000000000 / ((_eitr) * 256)) : 8)
247 #define EITR_REG_TO_INTS_PER_SEC EITR_INTS_PER_SEC_TO_REG
249 #define IXGBE_DESC_UNUSED(R) \
250 ((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
251 (R)->next_to_clean - (R)->next_to_use - 1)
253 #define IXGBE_RX_DESC_ADV(R, i) \
254 (&(((union ixgbe_adv_rx_desc *)((R).desc))[i]))
255 #define IXGBE_TX_DESC_ADV(R, i) \
256 (&(((union ixgbe_adv_tx_desc *)((R).desc))[i]))
257 #define IXGBE_TX_CTXTDESC_ADV(R, i) \
258 (&(((struct ixgbe_adv_tx_context_desc *)((R).desc))[i]))
260 #define IXGBE_MAX_JUMBO_FRAME_SIZE 16128
261 #ifdef IXGBE_FCOE
262 /* Use 3K as the baby jumbo frame size for FCoE */
263 #define IXGBE_FCOE_JUMBO_FRAME_SIZE 3072
264 #endif /* IXGBE_FCOE */
266 #define OTHER_VECTOR 1
267 #define NON_Q_VECTORS (OTHER_VECTOR)
269 #define MAX_MSIX_VECTORS_82599 64
270 #define MAX_MSIX_Q_VECTORS_82599 64
271 #define MAX_MSIX_VECTORS_82598 18
272 #define MAX_MSIX_Q_VECTORS_82598 16
274 #define MAX_MSIX_Q_VECTORS MAX_MSIX_Q_VECTORS_82599
275 #define MAX_MSIX_COUNT MAX_MSIX_VECTORS_82599
277 #define MIN_MSIX_Q_VECTORS 2
278 #define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NON_Q_VECTORS)
280 /* board specific private data structure */
281 struct ixgbe_adapter {
282 struct timer_list watchdog_timer;
283 struct vlan_group *vlgrp;
284 u16 bd_number;
285 struct work_struct reset_task;
286 struct ixgbe_q_vector *q_vector[MAX_MSIX_Q_VECTORS];
287 char name[MAX_MSIX_COUNT][IFNAMSIZ + 9];
288 struct ixgbe_dcb_config dcb_cfg;
289 struct ixgbe_dcb_config temp_dcb_cfg;
290 u8 dcb_set_bitmap;
291 enum ixgbe_fc_mode last_lfc_mode;
293 /* Interrupt Throttle Rate */
294 u32 rx_itr_setting;
295 u32 tx_itr_setting;
296 u16 eitr_low;
297 u16 eitr_high;
299 /* TX */
300 struct ixgbe_ring *tx_ring[MAX_TX_QUEUES] ____cacheline_aligned_in_smp;
301 int num_tx_queues;
302 u32 tx_timeout_count;
303 bool detect_tx_hung;
305 u64 restart_queue;
306 u64 lsc_int;
308 /* RX */
309 struct ixgbe_ring *rx_ring[MAX_RX_QUEUES] ____cacheline_aligned_in_smp;
310 int num_rx_queues;
311 int num_rx_pools; /* == num_rx_queues in 82598 */
312 int num_rx_queues_per_pool; /* 1 if 82598, can be many if 82599 */
313 u64 hw_csum_rx_error;
314 u64 hw_rx_no_dma_resources;
315 u64 non_eop_descs;
316 int num_msix_vectors;
317 int max_msix_q_vectors; /* true count of q_vectors for device */
318 struct ixgbe_ring_feature ring_feature[RING_F_ARRAY_SIZE];
319 struct msix_entry *msix_entries;
321 u32 alloc_rx_page_failed;
322 u32 alloc_rx_buff_failed;
324 /* Some features need tri-state capability,
325 * thus the additional *_CAPABLE flags.
327 u32 flags;
328 #define IXGBE_FLAG_RX_CSUM_ENABLED (u32)(1)
329 #define IXGBE_FLAG_MSI_CAPABLE (u32)(1 << 1)
330 #define IXGBE_FLAG_MSI_ENABLED (u32)(1 << 2)
331 #define IXGBE_FLAG_MSIX_CAPABLE (u32)(1 << 3)
332 #define IXGBE_FLAG_MSIX_ENABLED (u32)(1 << 4)
333 #define IXGBE_FLAG_RX_1BUF_CAPABLE (u32)(1 << 6)
334 #define IXGBE_FLAG_RX_PS_CAPABLE (u32)(1 << 7)
335 #define IXGBE_FLAG_RX_PS_ENABLED (u32)(1 << 8)
336 #define IXGBE_FLAG_IN_NETPOLL (u32)(1 << 9)
337 #define IXGBE_FLAG_DCA_ENABLED (u32)(1 << 10)
338 #define IXGBE_FLAG_DCA_CAPABLE (u32)(1 << 11)
339 #define IXGBE_FLAG_IMIR_ENABLED (u32)(1 << 12)
340 #define IXGBE_FLAG_MQ_CAPABLE (u32)(1 << 13)
341 #define IXGBE_FLAG_DCB_ENABLED (u32)(1 << 14)
342 #define IXGBE_FLAG_RSS_ENABLED (u32)(1 << 16)
343 #define IXGBE_FLAG_RSS_CAPABLE (u32)(1 << 17)
344 #define IXGBE_FLAG_VMDQ_CAPABLE (u32)(1 << 18)
345 #define IXGBE_FLAG_VMDQ_ENABLED (u32)(1 << 19)
346 #define IXGBE_FLAG_FAN_FAIL_CAPABLE (u32)(1 << 20)
347 #define IXGBE_FLAG_NEED_LINK_UPDATE (u32)(1 << 22)
348 #define IXGBE_FLAG_IN_SFP_LINK_TASK (u32)(1 << 23)
349 #define IXGBE_FLAG_IN_SFP_MOD_TASK (u32)(1 << 24)
350 #define IXGBE_FLAG_FDIR_HASH_CAPABLE (u32)(1 << 25)
351 #define IXGBE_FLAG_FDIR_PERFECT_CAPABLE (u32)(1 << 26)
352 #define IXGBE_FLAG_FCOE_CAPABLE (u32)(1 << 27)
353 #define IXGBE_FLAG_FCOE_ENABLED (u32)(1 << 28)
354 #define IXGBE_FLAG_SRIOV_CAPABLE (u32)(1 << 29)
355 #define IXGBE_FLAG_SRIOV_ENABLED (u32)(1 << 30)
357 u32 flags2;
358 #define IXGBE_FLAG2_RSC_CAPABLE (u32)(1)
359 #define IXGBE_FLAG2_RSC_ENABLED (u32)(1 << 1)
360 #define IXGBE_FLAG2_TEMP_SENSOR_CAPABLE (u32)(1 << 2)
361 /* default to trying for four seconds */
362 #define IXGBE_TRY_LINK_TIMEOUT (4 * HZ)
364 /* OS defined structs */
365 struct net_device *netdev;
366 struct pci_dev *pdev;
368 u32 test_icr;
369 struct ixgbe_ring test_tx_ring;
370 struct ixgbe_ring test_rx_ring;
372 /* structs defined in ixgbe_hw.h */
373 struct ixgbe_hw hw;
374 u16 msg_enable;
375 struct ixgbe_hw_stats stats;
377 /* Interrupt Throttle Rate */
378 u32 rx_eitr_param;
379 u32 tx_eitr_param;
381 unsigned long state;
382 u64 tx_busy;
383 unsigned int tx_ring_count;
384 unsigned int rx_ring_count;
386 u32 link_speed;
387 bool link_up;
388 unsigned long link_check_timeout;
390 struct work_struct watchdog_task;
391 struct work_struct sfp_task;
392 struct timer_list sfp_timer;
393 struct work_struct multispeed_fiber_task;
394 struct work_struct sfp_config_module_task;
395 u32 fdir_pballoc;
396 u32 atr_sample_rate;
397 spinlock_t fdir_perfect_lock;
398 struct work_struct fdir_reinit_task;
399 #ifdef IXGBE_FCOE
400 struct ixgbe_fcoe fcoe;
401 #endif /* IXGBE_FCOE */
402 u64 rsc_total_count;
403 u64 rsc_total_flush;
404 u32 wol;
405 u16 eeprom_version;
407 int node;
408 struct work_struct check_overtemp_task;
409 u32 interrupt_event;
411 /* SR-IOV */
412 DECLARE_BITMAP(active_vfs, IXGBE_MAX_VF_FUNCTIONS);
413 unsigned int num_vfs;
414 struct vf_data_storage *vfinfo;
417 enum ixbge_state_t {
418 __IXGBE_TESTING,
419 __IXGBE_RESETTING,
420 __IXGBE_DOWN,
421 __IXGBE_FDIR_INIT_DONE,
422 __IXGBE_SFP_MODULE_NOT_FOUND
425 enum ixgbe_boards {
426 board_82598,
427 board_82599,
430 extern struct ixgbe_info ixgbe_82598_info;
431 extern struct ixgbe_info ixgbe_82599_info;
432 #ifdef CONFIG_IXGBE_DCB
433 extern const struct dcbnl_rtnl_ops dcbnl_ops;
434 extern int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *src_dcb_cfg,
435 struct ixgbe_dcb_config *dst_dcb_cfg,
436 int tc_max);
437 #endif
439 extern char ixgbe_driver_name[];
440 extern const char ixgbe_driver_version[];
442 extern int ixgbe_up(struct ixgbe_adapter *adapter);
443 extern void ixgbe_down(struct ixgbe_adapter *adapter);
444 extern void ixgbe_reinit_locked(struct ixgbe_adapter *adapter);
445 extern void ixgbe_reset(struct ixgbe_adapter *adapter);
446 extern void ixgbe_set_ethtool_ops(struct net_device *netdev);
447 extern int ixgbe_setup_rx_resources(struct ixgbe_adapter *, struct ixgbe_ring *);
448 extern int ixgbe_setup_tx_resources(struct ixgbe_adapter *, struct ixgbe_ring *);
449 extern void ixgbe_free_rx_resources(struct ixgbe_adapter *, struct ixgbe_ring *);
450 extern void ixgbe_free_tx_resources(struct ixgbe_adapter *, struct ixgbe_ring *);
451 extern void ixgbe_update_stats(struct ixgbe_adapter *adapter);
452 extern int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter);
453 extern void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter);
454 extern void ixgbe_write_eitr(struct ixgbe_q_vector *);
455 extern int ethtool_ioctl(struct ifreq *ifr);
456 extern s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw);
457 extern s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 pballoc);
458 extern s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 pballoc);
459 extern s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
460 struct ixgbe_atr_input *input,
461 u8 queue);
462 extern s32 ixgbe_fdir_add_perfect_filter_82599(struct ixgbe_hw *hw,
463 struct ixgbe_atr_input *input,
464 struct ixgbe_atr_input_masks *input_masks,
465 u16 soft_id, u8 queue);
466 extern s32 ixgbe_atr_set_vlan_id_82599(struct ixgbe_atr_input *input,
467 u16 vlan_id);
468 extern s32 ixgbe_atr_set_src_ipv4_82599(struct ixgbe_atr_input *input,
469 u32 src_addr);
470 extern s32 ixgbe_atr_set_dst_ipv4_82599(struct ixgbe_atr_input *input,
471 u32 dst_addr);
472 extern s32 ixgbe_atr_set_src_port_82599(struct ixgbe_atr_input *input,
473 u16 src_port);
474 extern s32 ixgbe_atr_set_dst_port_82599(struct ixgbe_atr_input *input,
475 u16 dst_port);
476 extern s32 ixgbe_atr_set_flex_byte_82599(struct ixgbe_atr_input *input,
477 u16 flex_byte);
478 extern s32 ixgbe_atr_set_l4type_82599(struct ixgbe_atr_input *input,
479 u8 l4type);
480 extern void ixgbe_set_rx_mode(struct net_device *netdev);
481 #ifdef IXGBE_FCOE
482 extern void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter);
483 extern int ixgbe_fso(struct ixgbe_adapter *adapter,
484 struct ixgbe_ring *tx_ring, struct sk_buff *skb,
485 u32 tx_flags, u8 *hdr_len);
486 extern void ixgbe_cleanup_fcoe(struct ixgbe_adapter *adapter);
487 extern int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter,
488 union ixgbe_adv_rx_desc *rx_desc,
489 struct sk_buff *skb);
490 extern int ixgbe_fcoe_ddp_get(struct net_device *netdev, u16 xid,
491 struct scatterlist *sgl, unsigned int sgc);
492 extern int ixgbe_fcoe_ddp_put(struct net_device *netdev, u16 xid);
493 extern int ixgbe_fcoe_enable(struct net_device *netdev);
494 extern int ixgbe_fcoe_disable(struct net_device *netdev);
495 #ifdef CONFIG_IXGBE_DCB
496 extern u8 ixgbe_fcoe_getapp(struct ixgbe_adapter *adapter);
497 extern u8 ixgbe_fcoe_setapp(struct ixgbe_adapter *adapter, u8 up);
498 #endif /* CONFIG_IXGBE_DCB */
499 extern int ixgbe_fcoe_get_wwn(struct net_device *netdev, u64 *wwn, int type);
500 #endif /* IXGBE_FCOE */
502 #endif /* _IXGBE_H_ */