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9a799d71 AK |
1 | /******************************************************************************* |
2 | ||
3 | Intel 10 Gigabit PCI Express Linux driver | |
3efac5a0 | 4 | Copyright(c) 1999 - 2009 Intel Corporation. |
9a799d71 AK |
5 | |
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. | |
9 | ||
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. | |
14 | ||
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. | |
18 | ||
19 | The full GNU General Public License is included in this distribution in | |
20 | the file called "COPYING". | |
21 | ||
22 | Contact Information: | |
9a799d71 AK |
23 | e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
24 | Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
25 | ||
26 | *******************************************************************************/ | |
27 | ||
28 | #ifndef _IXGBE_H_ | |
29 | #define _IXGBE_H_ | |
30 | ||
31 | #include <linux/types.h> | |
32 | #include <linux/pci.h> | |
33 | #include <linux/netdevice.h> | |
6fabd715 | 34 | #include <linux/aer.h> |
9a799d71 AK |
35 | |
36 | #include "ixgbe_type.h" | |
37 | #include "ixgbe_common.h" | |
2f90b865 | 38 | #include "ixgbe_dcb.h" |
eacd73f7 YZ |
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 */ | |
5dd2d332 | 43 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd JC |
44 | #include <linux/dca.h> |
45 | #endif | |
9a799d71 | 46 | |
9a799d71 AK |
47 | #define PFX "ixgbe: " |
48 | #define DPRINTK(nlevel, klevel, fmt, args...) \ | |
49 | ((void)((NETIF_MSG_##nlevel & adapter->msg_enable) && \ | |
50 | printk(KERN_##klevel PFX "%s: %s: " fmt, adapter->netdev->name, \ | |
b39d66a8 | 51 | __func__ , ## args))) |
9a799d71 AK |
52 | |
53 | /* TX/RX descriptor defines */ | |
54 | #define IXGBE_DEFAULT_TXD 1024 | |
55 | #define IXGBE_MAX_TXD 4096 | |
56 | #define IXGBE_MIN_TXD 64 | |
57 | ||
58 | #define IXGBE_DEFAULT_RXD 1024 | |
59 | #define IXGBE_MAX_RXD 4096 | |
60 | #define IXGBE_MIN_RXD 64 | |
61 | ||
9a799d71 AK |
62 | /* flow control */ |
63 | #define IXGBE_DEFAULT_FCRTL 0x10000 | |
2b9ade93 | 64 | #define IXGBE_MIN_FCRTL 0x40 |
9a799d71 AK |
65 | #define IXGBE_MAX_FCRTL 0x7FF80 |
66 | #define IXGBE_DEFAULT_FCRTH 0x20000 | |
2b9ade93 | 67 | #define IXGBE_MIN_FCRTH 0x600 |
9a799d71 | 68 | #define IXGBE_MAX_FCRTH 0x7FFF0 |
2b9ade93 | 69 | #define IXGBE_DEFAULT_FCPAUSE 0xFFFF |
9a799d71 AK |
70 | #define IXGBE_MIN_FCPAUSE 0 |
71 | #define IXGBE_MAX_FCPAUSE 0xFFFF | |
72 | ||
73 | /* Supported Rx Buffer Sizes */ | |
74 | #define IXGBE_RXBUFFER_64 64 /* Used for packet split */ | |
75 | #define IXGBE_RXBUFFER_128 128 /* Used for packet split */ | |
76 | #define IXGBE_RXBUFFER_256 256 /* Used for packet split */ | |
77 | #define IXGBE_RXBUFFER_2048 2048 | |
32344a39 | 78 | #define IXGBE_MAX_RXBUFFER 16384 /* largest size for a single descriptor */ |
9a799d71 AK |
79 | |
80 | #define IXGBE_RX_HDR_SIZE IXGBE_RXBUFFER_256 | |
81 | ||
82 | #define MAXIMUM_ETHERNET_VLAN_SIZE (ETH_FRAME_LEN + ETH_FCS_LEN + VLAN_HLEN) | |
83 | ||
9a799d71 AK |
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 */ | |
86 | ||
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) | |
eacd73f7 YZ |
91 | #define IXGBE_TX_FLAGS_FCOE (u32)(1 << 4) |
92 | #define IXGBE_TX_FLAGS_FSO (u32)(1 << 5) | |
9a799d71 | 93 | #define IXGBE_TX_FLAGS_VLAN_MASK 0xffff0000 |
2f90b865 | 94 | #define IXGBE_TX_FLAGS_VLAN_PRIO_MASK 0x0000e000 |
9a799d71 AK |
95 | #define IXGBE_TX_FLAGS_VLAN_SHIFT 16 |
96 | ||
97 | /* wrapper around a pointer to a socket buffer, | |
98 | * so a DMA handle can be stored along with the buffer */ | |
99 | struct ixgbe_tx_buffer { | |
100 | struct sk_buff *skb; | |
101 | dma_addr_t dma; | |
102 | unsigned long time_stamp; | |
103 | u16 length; | |
104 | u16 next_to_watch; | |
105 | }; | |
106 | ||
107 | struct ixgbe_rx_buffer { | |
108 | struct sk_buff *skb; | |
109 | dma_addr_t dma; | |
110 | struct page *page; | |
111 | dma_addr_t page_dma; | |
762f4c57 | 112 | unsigned int page_offset; |
9a799d71 AK |
113 | }; |
114 | ||
115 | struct ixgbe_queue_stats { | |
116 | u64 packets; | |
117 | u64 bytes; | |
118 | }; | |
119 | ||
120 | struct ixgbe_ring { | |
9a799d71 AK |
121 | void *desc; /* descriptor ring memory */ |
122 | dma_addr_t dma; /* phys. address of descriptor ring */ | |
123 | unsigned int size; /* length in bytes */ | |
124 | unsigned int count; /* amount of descriptors */ | |
125 | unsigned int next_to_use; | |
126 | unsigned int next_to_clean; | |
127 | ||
021230d4 | 128 | int queue_index; /* needed for multiqueue queue management */ |
9a799d71 AK |
129 | union { |
130 | struct ixgbe_tx_buffer *tx_buffer_info; | |
131 | struct ixgbe_rx_buffer *rx_buffer_info; | |
132 | }; | |
133 | ||
134 | u16 head; | |
135 | u16 tail; | |
136 | ||
f494e8fa AV |
137 | unsigned int total_bytes; |
138 | unsigned int total_packets; | |
9a799d71 | 139 | |
021230d4 AV |
140 | u16 reg_idx; /* holds the special value that gets the hardware register |
141 | * offset associated with this ring, which is different | |
2f90b865 | 142 | * for DCB and RSS modes */ |
bd0362dd | 143 | |
5dd2d332 | 144 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd JC |
145 | /* cpu for tx queue */ |
146 | int cpu; | |
147 | #endif | |
9a799d71 | 148 | struct ixgbe_queue_stats stats; |
e8e26350 PW |
149 | u64 v_idx; /* maps directly to the index for this ring in the hardware |
150 | * vector array, can also be used for finding the bit in EICR | |
151 | * and friends that represents the vector for this ring */ | |
9a799d71 | 152 | |
9a799d71 | 153 | |
9a799d71 | 154 | u16 work_limit; /* max work per interrupt */ |
7c6e0a43 | 155 | u16 rx_buf_len; |
f8212f97 | 156 | u64 rsc_count; /* stat for coalesced packets */ |
9a799d71 AK |
157 | }; |
158 | ||
c7e4358a SN |
159 | enum ixgbe_ring_f_enum { |
160 | RING_F_NONE = 0, | |
161 | RING_F_DCB, | |
162 | RING_F_VMDQ, | |
163 | RING_F_RSS, | |
164 | ||
165 | RING_F_ARRAY_SIZE /* must be last in enum set */ | |
166 | }; | |
167 | ||
2f90b865 | 168 | #define IXGBE_MAX_DCB_INDICES 8 |
021230d4 AV |
169 | #define IXGBE_MAX_RSS_INDICES 16 |
170 | #define IXGBE_MAX_VMDQ_INDICES 16 | |
171 | struct ixgbe_ring_feature { | |
172 | int indices; | |
173 | int mask; | |
174 | }; | |
175 | ||
e8e26350 PW |
176 | #define MAX_RX_QUEUES 128 |
177 | #define MAX_TX_QUEUES 128 | |
021230d4 | 178 | |
2f90b865 AD |
179 | #define MAX_RX_PACKET_BUFFERS ((adapter->flags & IXGBE_FLAG_DCB_ENABLED) \ |
180 | ? 8 : 1) | |
181 | #define MAX_TX_PACKET_BUFFERS MAX_RX_PACKET_BUFFERS | |
182 | ||
021230d4 AV |
183 | /* MAX_MSIX_Q_VECTORS of these are allocated, |
184 | * but we only use one per queue-specific vector. | |
185 | */ | |
186 | struct ixgbe_q_vector { | |
187 | struct ixgbe_adapter *adapter; | |
188 | struct napi_struct napi; | |
189 | DECLARE_BITMAP(rxr_idx, MAX_RX_QUEUES); /* Rx ring indices */ | |
190 | DECLARE_BITMAP(txr_idx, MAX_TX_QUEUES); /* Tx ring indices */ | |
191 | u8 rxr_count; /* Rx ring count assigned to this vector */ | |
192 | u8 txr_count; /* Tx ring count assigned to this vector */ | |
30efa5a3 JB |
193 | u8 tx_itr; |
194 | u8 rx_itr; | |
021230d4 | 195 | u32 eitr; |
7a921c93 | 196 | u32 v_idx; /* vector index in list */ |
021230d4 AV |
197 | }; |
198 | ||
9a799d71 | 199 | /* Helper macros to switch between ints/sec and what the register uses. |
509ee935 JB |
200 | * And yes, it's the same math going both ways. The lowest value |
201 | * supported by all of the ixgbe hardware is 8. | |
9a799d71 AK |
202 | */ |
203 | #define EITR_INTS_PER_SEC_TO_REG(_eitr) \ | |
509ee935 | 204 | ((_eitr) ? (1000000000 / ((_eitr) * 256)) : 8) |
9a799d71 AK |
205 | #define EITR_REG_TO_INTS_PER_SEC EITR_INTS_PER_SEC_TO_REG |
206 | ||
207 | #define IXGBE_DESC_UNUSED(R) \ | |
208 | ((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \ | |
209 | (R)->next_to_clean - (R)->next_to_use - 1) | |
210 | ||
211 | #define IXGBE_RX_DESC_ADV(R, i) \ | |
212 | (&(((union ixgbe_adv_rx_desc *)((R).desc))[i])) | |
213 | #define IXGBE_TX_DESC_ADV(R, i) \ | |
214 | (&(((union ixgbe_adv_tx_desc *)((R).desc))[i])) | |
215 | #define IXGBE_TX_CTXTDESC_ADV(R, i) \ | |
216 | (&(((struct ixgbe_adv_tx_context_desc *)((R).desc))[i])) | |
217 | ||
218 | #define IXGBE_MAX_JUMBO_FRAME_SIZE 16128 | |
219 | ||
021230d4 AV |
220 | #define OTHER_VECTOR 1 |
221 | #define NON_Q_VECTORS (OTHER_VECTOR) | |
222 | ||
e8e26350 PW |
223 | #define MAX_MSIX_VECTORS_82599 64 |
224 | #define MAX_MSIX_Q_VECTORS_82599 64 | |
eb7f139c PWJ |
225 | #define MAX_MSIX_VECTORS_82598 18 |
226 | #define MAX_MSIX_Q_VECTORS_82598 16 | |
227 | ||
e8e26350 PW |
228 | #define MAX_MSIX_Q_VECTORS MAX_MSIX_Q_VECTORS_82599 |
229 | #define MAX_MSIX_COUNT MAX_MSIX_VECTORS_82599 | |
eb7f139c | 230 | |
021230d4 | 231 | #define MIN_MSIX_Q_VECTORS 2 |
021230d4 AV |
232 | #define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NON_Q_VECTORS) |
233 | ||
9a799d71 AK |
234 | /* board specific private data structure */ |
235 | struct ixgbe_adapter { | |
236 | struct timer_list watchdog_timer; | |
237 | struct vlan_group *vlgrp; | |
238 | u16 bd_number; | |
9a799d71 | 239 | struct work_struct reset_task; |
7a921c93 | 240 | struct ixgbe_q_vector *q_vector[MAX_MSIX_Q_VECTORS]; |
e8e26350 | 241 | char name[MAX_MSIX_COUNT][IFNAMSIZ + 9]; |
2f90b865 AD |
242 | struct ixgbe_dcb_config dcb_cfg; |
243 | struct ixgbe_dcb_config temp_dcb_cfg; | |
244 | u8 dcb_set_bitmap; | |
9a799d71 | 245 | |
f494e8fa AV |
246 | /* Interrupt Throttle Rate */ |
247 | u32 itr_setting; | |
248 | u16 eitr_low; | |
249 | u16 eitr_high; | |
250 | ||
9a799d71 AK |
251 | /* TX */ |
252 | struct ixgbe_ring *tx_ring; /* One per active queue */ | |
30efa5a3 | 253 | int num_tx_queues; |
9a799d71 | 254 | u64 restart_queue; |
30efa5a3 | 255 | u64 hw_csum_tx_good; |
9a799d71 AK |
256 | u64 lsc_int; |
257 | u64 hw_tso_ctxt; | |
258 | u64 hw_tso6_ctxt; | |
259 | u32 tx_timeout_count; | |
260 | bool detect_tx_hung; | |
261 | ||
262 | /* RX */ | |
263 | struct ixgbe_ring *rx_ring; /* One per active queue */ | |
30efa5a3 | 264 | int num_rx_queues; |
9a799d71 | 265 | u64 hw_csum_rx_error; |
e8e26350 | 266 | u64 hw_rx_no_dma_resources; |
9a799d71 AK |
267 | u64 hw_csum_rx_good; |
268 | u64 non_eop_descs; | |
021230d4 | 269 | int num_msix_vectors; |
eb7f139c | 270 | int max_msix_q_vectors; /* true count of q_vectors for device */ |
c7e4358a | 271 | struct ixgbe_ring_feature ring_feature[RING_F_ARRAY_SIZE]; |
9a799d71 AK |
272 | struct msix_entry *msix_entries; |
273 | ||
274 | u64 rx_hdr_split; | |
275 | u32 alloc_rx_page_failed; | |
276 | u32 alloc_rx_buff_failed; | |
277 | ||
021230d4 AV |
278 | /* Some features need tri-state capability, |
279 | * thus the additional *_CAPABLE flags. | |
280 | */ | |
9a799d71 | 281 | u32 flags; |
96b0e0f6 JB |
282 | #define IXGBE_FLAG_RX_CSUM_ENABLED (u32)(1) |
283 | #define IXGBE_FLAG_MSI_CAPABLE (u32)(1 << 1) | |
284 | #define IXGBE_FLAG_MSI_ENABLED (u32)(1 << 2) | |
285 | #define IXGBE_FLAG_MSIX_CAPABLE (u32)(1 << 3) | |
286 | #define IXGBE_FLAG_MSIX_ENABLED (u32)(1 << 4) | |
287 | #define IXGBE_FLAG_RX_1BUF_CAPABLE (u32)(1 << 6) | |
288 | #define IXGBE_FLAG_RX_PS_CAPABLE (u32)(1 << 7) | |
289 | #define IXGBE_FLAG_RX_PS_ENABLED (u32)(1 << 8) | |
290 | #define IXGBE_FLAG_IN_NETPOLL (u32)(1 << 9) | |
291 | #define IXGBE_FLAG_DCA_ENABLED (u32)(1 << 10) | |
292 | #define IXGBE_FLAG_DCA_CAPABLE (u32)(1 << 11) | |
293 | #define IXGBE_FLAG_IMIR_ENABLED (u32)(1 << 12) | |
294 | #define IXGBE_FLAG_MQ_CAPABLE (u32)(1 << 13) | |
e8e26350 | 295 | #define IXGBE_FLAG_DCB_ENABLED (u32)(1 << 14) |
96b0e0f6 JB |
296 | #define IXGBE_FLAG_RSS_ENABLED (u32)(1 << 16) |
297 | #define IXGBE_FLAG_RSS_CAPABLE (u32)(1 << 17) | |
298 | #define IXGBE_FLAG_VMDQ_CAPABLE (u32)(1 << 18) | |
299 | #define IXGBE_FLAG_VMDQ_ENABLED (u32)(1 << 19) | |
0befdb3e | 300 | #define IXGBE_FLAG_FAN_FAIL_CAPABLE (u32)(1 << 20) |
96b0e0f6 JB |
301 | #define IXGBE_FLAG_NEED_LINK_UPDATE (u32)(1 << 22) |
302 | #define IXGBE_FLAG_IN_WATCHDOG_TASK (u32)(1 << 23) | |
e8e26350 PW |
303 | #define IXGBE_FLAG_IN_SFP_LINK_TASK (u32)(1 << 24) |
304 | #define IXGBE_FLAG_IN_SFP_MOD_TASK (u32)(1 << 25) | |
f8212f97 AD |
305 | #define IXGBE_FLAG_RSC_CAPABLE (u32)(1 << 26) |
306 | #define IXGBE_FLAG_RSC_ENABLED (u32)(1 << 27) | |
eacd73f7 | 307 | #define IXGBE_FLAG_FCOE_ENABLED (u32)(1 << 29) |
96b0e0f6 JB |
308 | |
309 | /* default to trying for four seconds */ | |
310 | #define IXGBE_TRY_LINK_TIMEOUT (4 * HZ) | |
9a799d71 AK |
311 | |
312 | /* OS defined structs */ | |
313 | struct net_device *netdev; | |
314 | struct pci_dev *pdev; | |
315 | struct net_device_stats net_stats; | |
316 | ||
317 | /* structs defined in ixgbe_hw.h */ | |
318 | struct ixgbe_hw hw; | |
319 | u16 msg_enable; | |
320 | struct ixgbe_hw_stats stats; | |
021230d4 AV |
321 | |
322 | /* Interrupt Throttle Rate */ | |
30efa5a3 | 323 | u32 eitr_param; |
9a799d71 AK |
324 | |
325 | unsigned long state; | |
326 | u64 tx_busy; | |
30efa5a3 JB |
327 | unsigned int tx_ring_count; |
328 | unsigned int rx_ring_count; | |
cf8280ee JB |
329 | |
330 | u32 link_speed; | |
331 | bool link_up; | |
332 | unsigned long link_check_timeout; | |
333 | ||
334 | struct work_struct watchdog_task; | |
c4900be0 DS |
335 | struct work_struct sfp_task; |
336 | struct timer_list sfp_timer; | |
e8e26350 PW |
337 | struct work_struct multispeed_fiber_task; |
338 | struct work_struct sfp_config_module_task; | |
d0ed8937 YZ |
339 | #ifdef IXGBE_FCOE |
340 | struct ixgbe_fcoe fcoe; | |
341 | #endif /* IXGBE_FCOE */ | |
f8212f97 | 342 | u64 rsc_count; |
e8e26350 | 343 | u32 wol; |
34b0368c | 344 | u16 eeprom_version; |
9a799d71 AK |
345 | }; |
346 | ||
347 | enum ixbge_state_t { | |
348 | __IXGBE_TESTING, | |
349 | __IXGBE_RESETTING, | |
c4900be0 DS |
350 | __IXGBE_DOWN, |
351 | __IXGBE_SFP_MODULE_NOT_FOUND | |
9a799d71 AK |
352 | }; |
353 | ||
354 | enum ixgbe_boards { | |
3957d63d | 355 | board_82598, |
e8e26350 | 356 | board_82599, |
9a799d71 AK |
357 | }; |
358 | ||
3957d63d | 359 | extern struct ixgbe_info ixgbe_82598_info; |
e8e26350 | 360 | extern struct ixgbe_info ixgbe_82599_info; |
7a6b6f51 | 361 | #ifdef CONFIG_IXGBE_DCB |
2f90b865 AD |
362 | extern struct dcbnl_rtnl_ops dcbnl_ops; |
363 | extern int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *src_dcb_cfg, | |
364 | struct ixgbe_dcb_config *dst_dcb_cfg, | |
365 | int tc_max); | |
366 | #endif | |
9a799d71 AK |
367 | |
368 | extern char ixgbe_driver_name[]; | |
9c8eb720 | 369 | extern const char ixgbe_driver_version[]; |
9a799d71 AK |
370 | |
371 | extern int ixgbe_up(struct ixgbe_adapter *adapter); | |
372 | extern void ixgbe_down(struct ixgbe_adapter *adapter); | |
d4f80882 | 373 | extern void ixgbe_reinit_locked(struct ixgbe_adapter *adapter); |
9a799d71 | 374 | extern void ixgbe_reset(struct ixgbe_adapter *adapter); |
9a799d71 | 375 | extern void ixgbe_set_ethtool_ops(struct net_device *netdev); |
b4617240 PW |
376 | extern int ixgbe_setup_rx_resources(struct ixgbe_adapter *, struct ixgbe_ring *); |
377 | extern int ixgbe_setup_tx_resources(struct ixgbe_adapter *, struct ixgbe_ring *); | |
378 | extern void ixgbe_free_rx_resources(struct ixgbe_adapter *, struct ixgbe_ring *); | |
379 | extern void ixgbe_free_tx_resources(struct ixgbe_adapter *, struct ixgbe_ring *); | |
380 | extern void ixgbe_update_stats(struct ixgbe_adapter *adapter); | |
2f90b865 | 381 | extern int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter); |
7a921c93 | 382 | extern void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter); |
509ee935 | 383 | extern void ixgbe_write_eitr(struct ixgbe_adapter *, int, u32); |
eacd73f7 YZ |
384 | #ifdef IXGBE_FCOE |
385 | extern void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter); | |
386 | extern int ixgbe_fso(struct ixgbe_adapter *adapter, | |
387 | struct ixgbe_ring *tx_ring, struct sk_buff *skb, | |
388 | u32 tx_flags, u8 *hdr_len); | |
332d4a7d YZ |
389 | extern void ixgbe_cleanup_fcoe(struct ixgbe_adapter *adapter); |
390 | extern int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter, | |
391 | union ixgbe_adv_rx_desc *rx_desc, | |
392 | struct sk_buff *skb); | |
393 | extern int ixgbe_fcoe_ddp_get(struct net_device *netdev, u16 xid, | |
394 | struct scatterlist *sgl, unsigned int sgc); | |
395 | extern int ixgbe_fcoe_ddp_put(struct net_device *netdev, u16 xid); | |
eacd73f7 | 396 | #endif /* IXGBE_FCOE */ |
9a799d71 AK |
397 | |
398 | #endif /* _IXGBE_H_ */ |