FreeBSD/Linux Kernel Cross Reference
sys/dev/ixgb/if_ixgb.h
1 /**************************************************************************
2
3 Copyright (c) 2001-2004, Intel Corporation
4 All rights reserved.
5
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
8
9 1. Redistributions of source code must retain the above copyright notice,
10 this list of conditions and the following disclaimer.
11
12 2. Redistributions in binary form must reproduce the above copyright
13 notice, this list of conditions and the following disclaimer in the
14 documentation and/or other materials provided with the distribution.
15
16 3. Neither the name of the Intel Corporation nor the names of its
17 contributors may be used to endorse or promote products derived from
18 this software without specific prior written permission.
19
20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 POSSIBILITY OF SUCH DAMAGE.
31
32 ***************************************************************************/
33 /*$FreeBSD: releng/5.4/sys/dev/ixgb/if_ixgb.h 144355 2005-03-30 23:08:46Z mux $*/
34
35 #ifndef _IXGB_H_DEFINED_
36 #define _IXGB_H_DEFINED_
37
38
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/mbuf.h>
42 #include <sys/protosw.h>
43 #include <sys/socket.h>
44 #include <sys/malloc.h>
45 #include <sys/module.h>
46 #include <sys/kernel.h>
47 #include <sys/sockio.h>
48
49 #include <net/if.h>
50 #include <net/if_arp.h>
51 #include <net/ethernet.h>
52 #include <net/if_dl.h>
53 #include <net/if_media.h>
54
55 #include <net/bpf.h>
56 #include <net/if_types.h>
57 #include <net/if_vlan_var.h>
58
59 #include <netinet/in_systm.h>
60 #include <netinet/in.h>
61 #include <netinet/ip.h>
62 #include <netinet/tcp.h>
63 #include <netinet/udp.h>
64
65 #include <sys/bus.h>
66 #include <machine/bus.h>
67 #include <sys/rman.h>
68 #include <machine/resource.h>
69 #include <machine/clock.h>
70 #if __FreeBSD_version >= 502000
71 #include <dev/pci/pcivar.h>
72 #include <dev/pci/pcireg.h>
73 #else
74 #include <pci/pcivar.h>
75 #include <pci/pcireg.h>
76 #endif
77 #include <sys/proc.h>
78 #include <sys/sysctl.h>
79 #include <sys/endian.h>
80 #include "opt_bdg.h"
81
82 #include <dev/ixgb/ixgb_hw.h>
83 #include <dev/ixgb/ixgb_ee.h>
84 #include <dev/ixgb/ixgb_ids.h>
85
86 /* Tunables */
87
88 /*
89 * TxDescriptors Valid Range: 64-4096 Default Value: 256 This value is the
90 * number of transmit descriptors allocated by the driver. Increasing this
91 * value allows the driver to queue more transmits. Each descriptor is 16
92 * bytes.
93 */
94 #define IXGB_MAX_TXD 256
95
96 /*
97 * RxDescriptors Valid Range: 64-4096 Default Value: 1024 This value is the
98 * number of receive descriptors allocated by the driver. Increasing this
99 * value allows the driver to buffer more incoming packets. Each descriptor
100 * is 16 bytes. A receive buffer is also allocated for each descriptor. The
101 * maximum MTU size is 16110.
102 *
103 */
104 #define IXGB_MAX_RXD 1024
105
106 /*
107 * TxIntDelay Valid Range: 0-65535 (0=off) Default Value: 32 This value
108 * delays the generation of transmit interrupts in units of 1.024
109 * microseconds. Transmit interrupt reduction can improve CPU efficiency if
110 * properly tuned for specific network traffic. If the system is reporting
111 * dropped transmits, this value may be set too high causing the driver to
112 * run out of available transmit descriptors.
113 */
114 #define TIDV 32
115
116 /*
117 * RxIntDelay Valid Range: 0-65535 (0=off) Default Value: 72 This value
118 * delays the generation of receive interrupts in units of 1.024
119 * microseconds. Receive interrupt reduction can improve CPU efficiency if
120 * properly tuned for specific network traffic. Increasing this value adds
121 * extra latency to frame reception and can end up decreasing the throughput
122 * of TCP traffic. If the system is reporting dropped receives, this value
123 * may be set too high, causing the driver to run out of available receive
124 * descriptors.
125 *
126 */
127 #define RDTR 72
128
129
130 /*
131 * This parameter controls the maximum no of times the driver will loop in
132 * the isr. Minimum Value = 1
133 */
134 #define IXGB_MAX_INTR 3
135
136
137 /*
138 * Inform the stack about transmit checksum offload capabilities.
139 */
140 #define IXGB_CHECKSUM_FEATURES (CSUM_TCP | CSUM_UDP)
141
142 /*
143 * This parameter controls the duration of transmit watchdog timer.
144 */
145 #define IXGB_TX_TIMEOUT 5 /* set to 5 seconds */
146
147 /*
148 * This parameter controls when the driver calls the routine to reclaim
149 * transmit descriptors.
150 */
151 #define IXGB_TX_CLEANUP_THRESHOLD IXGB_MAX_TXD / 8
152
153 /*
154 * Flow Control Types.
155 * 1. ixgb_fc_none - Flow Control Disabled
156 * 2. ixgb_fc_rx_pause - Flow Control Receive Only
157 * 3. ixgb_fc_tx_pause - Flow Control Transmit Only
158 * 4. ixgb_fc_full - Flow Control Enabled
159 */
160 #define FLOW_CONTROL_NONE ixgb_fc_none
161 #define FLOW_CONTROL_RX_PAUSE ixgb_fc_rx_pause
162 #define FLOW_CONTROL_TX_PAUSE ixgb_fc_tx_pause
163 #define FLOW_CONTROL_FULL ixgb_fc_full
164
165 /*
166 * Set the flow control type. Assign one of the above flow control types to be enabled.
167 * Default Value: FLOW_CONTROL_FULL
168 */
169 #define FLOW_CONTROL FLOW_CONTROL_FULL
170
171 /*
172 * Receive Flow control low threshold (when we send a resume frame) (FCRTL)
173 * Valid Range: 64 - 262,136 (0x40 - 0x3FFF8, 8 byte granularity) must be
174 * less than high threshold by at least 8 bytes Default Value: 163,840
175 * (0x28000)
176 */
177 #define FCRTL 0x28000
178
179 /*
180 * Receive Flow control high threshold (when we send a pause frame) (FCRTH)
181 * Valid Range: 1,536 - 262,136 (0x600 - 0x3FFF8, 8 byte granularity) Default
182 * Value: 196,608 (0x30000)
183 */
184 #define FCRTH 0x30000
185
186 /*
187 * Flow control request timeout (how long to pause the link partner's tx)
188 * (PAP 15:0) Valid Range: 1 - 65535 Default Value: 256 (0x100)
189 */
190 #define FCPAUSE 0x100
191
192 /* Tunables -- End */
193
194
195 #define IXGB_VENDOR_ID 0x8086
196 #define IXGB_MMBA 0x0010 /* Mem base address */
197 #define IXGB_ROUNDUP(size, unit) (((size) + (unit) - 1) & ~((unit) - 1))
198
199 #define IOCTL_CMD_TYPE u_long
200 #define MAX_NUM_MULTICAST_ADDRESSES 128
201 #define PCI_ANY_ID (~0U)
202 #define ETHER_ALIGN 2
203
204 /* Defines for printing debug information */
205 #define DEBUG_INIT 0
206 #define DEBUG_IOCTL 0
207 #define DEBUG_HW 0
208 #define _SV_ 0
209
210 #define INIT_DEBUGOUT(S) if (DEBUG_INIT) printf(S "\n")
211 #define INIT_DEBUGOUT1(S, A) if (DEBUG_INIT) printf(S "\n", A)
212 #define INIT_DEBUGOUT2(S, A, B) if (DEBUG_INIT) printf(S "\n", A, B)
213 #define IOCTL_DEBUGOUT(S) if (DEBUG_IOCTL) printf(S "\n")
214 #define IOCTL_DEBUGOUT1(S, A) if (DEBUG_IOCTL) printf(S "\n", A)
215 #define IOCTL_DEBUGOUT2(S, A, B) if (DEBUG_IOCTL) printf(S "\n", A, B)
216 #define HW_DEBUGOUT(S) if (DEBUG_HW) printf(S "\n")
217 #define HW_DEBUGOUT1(S, A) if (DEBUG_HW) printf(S "\n", A)
218 #define HW_DEBUGOUT2(S, A, B) if (DEBUG_HW) printf(S "\n", A, B)
219
220
221 /* Supported RX Buffer Sizes */
222 #define IXGB_RXBUFFER_2048 2048
223 #define IXGB_RXBUFFER_4096 4096
224 #define IXGB_RXBUFFER_8192 8192
225 #define IXGB_RXBUFFER_16384 16384
226
227 #define IXGB_MAX_SCATTER 100
228
229 /*
230 * ******************************************************************************
231 * vendor_info_array
232 *
233 * This array contains the list of Subvendor/Subdevice IDs on which the driver
234 * should load.
235 *
236 *****************************************************************************
237 */
238 typedef struct _ixgb_vendor_info_t {
239 unsigned int vendor_id;
240 unsigned int device_id;
241 unsigned int subvendor_id;
242 unsigned int subdevice_id;
243 unsigned int index;
244 } ixgb_vendor_info_t;
245
246
247 struct ixgb_buffer {
248 struct mbuf *m_head;
249 bus_dmamap_t map; /* bus_dma map for packet */
250 };
251
252 struct ixgb_q {
253 bus_dmamap_t map; /* bus_dma map for packet */
254 int nsegs; /* # of segments/descriptors */
255 bus_dma_segment_t segs[IXGB_MAX_SCATTER];
256 };
257
258 /*
259 * Bus dma allocation structure used by ixgb_dma_malloc and ixgb_dma_free.
260 */
261 struct ixgb_dma_alloc {
262 bus_addr_t dma_paddr;
263 caddr_t dma_vaddr;
264 bus_dma_tag_t dma_tag;
265 bus_dmamap_t dma_map;
266 bus_dma_segment_t dma_seg;
267 bus_size_t dma_size;
268 int dma_nseg;
269 };
270
271 typedef enum _XSUM_CONTEXT_T {
272 OFFLOAD_NONE,
273 OFFLOAD_TCP_IP,
274 OFFLOAD_UDP_IP
275 } XSUM_CONTEXT_T;
276
277 /* Our adapter structure */
278 struct adapter {
279 struct arpcom interface_data;
280 struct adapter *next;
281 struct adapter *prev;
282 struct ixgb_hw hw;
283
284 /* FreeBSD operating-system-specific structures */
285 struct ixgb_osdep osdep;
286 struct device *dev;
287 struct resource *res_memory;
288 struct resource *res_ioport;
289 struct resource *res_interrupt;
290 void *int_handler_tag;
291 struct ifmedia media;
292 struct callout_handle timer_handle;
293 int io_rid;
294 u_int8_t unit;
295
296 /* Info about the board itself */
297 u_int32_t part_num;
298 u_int8_t link_active;
299 u_int16_t link_speed;
300 u_int16_t link_duplex;
301 u_int32_t tx_int_delay;
302 u_int32_t tx_abs_int_delay;
303 u_int32_t rx_int_delay;
304 u_int32_t rx_abs_int_delay;
305
306 int raidc;
307
308 XSUM_CONTEXT_T active_checksum_context;
309
310 /*
311 * Transmit definitions
312 *
313 * We have an array of num_tx_desc descriptors (handled by the
314 * controller) paired with an array of tx_buffers (at
315 * tx_buffer_area). The index of the next available descriptor is
316 * next_avail_tx_desc. The number of remaining tx_desc is
317 * num_tx_desc_avail.
318 */
319 struct ixgb_dma_alloc txdma; /* bus_dma glue for tx desc */
320 struct ixgb_tx_desc *tx_desc_base;
321 u_int32_t next_avail_tx_desc;
322 u_int32_t oldest_used_tx_desc;
323 volatile u_int16_t num_tx_desc_avail;
324 u_int16_t num_tx_desc;
325 u_int32_t txd_cmd;
326 struct ixgb_buffer *tx_buffer_area;
327 bus_dma_tag_t txtag; /* dma tag for tx */
328
329 /*
330 * Receive definitions
331 *
332 * we have an array of num_rx_desc rx_desc (handled by the controller),
333 * and paired with an array of rx_buffers (at rx_buffer_area). The
334 * next pair to check on receive is at offset next_rx_desc_to_check
335 */
336 struct ixgb_dma_alloc rxdma; /* bus_dma glue for rx desc */
337 struct ixgb_rx_desc *rx_desc_base;
338 u_int32_t next_rx_desc_to_check;
339 u_int16_t num_rx_desc;
340 u_int32_t rx_buffer_len;
341 struct ixgb_buffer *rx_buffer_area;
342 bus_dma_tag_t rxtag; /* dma tag for Rx */
343 u_int32_t next_rx_desc_to_use;
344
345
346 /* Jumbo frame */
347 struct mbuf *fmp;
348 struct mbuf *lmp;
349
350 struct sysctl_ctx_list sysctl_ctx;
351 struct sysctl_oid *sysctl_tree;
352
353 /* Misc stats maintained by the driver */
354 unsigned long dropped_pkts;
355 unsigned long mbuf_alloc_failed;
356 unsigned long mbuf_cluster_failed;
357 unsigned long no_tx_desc_avail1;
358 unsigned long no_tx_desc_avail2;
359 unsigned long no_tx_map_avail;
360 unsigned long no_tx_dma_setup;
361
362 boolean_t in_detach;
363
364 /* Board specific private data */
365 #ifdef _SV_
366 struct ixgb_sv_stats {
367 uint64_t icr_rxdmt0;
368 uint64_t icr_rxo;
369 uint64_t icr_rxt0;
370 uint64_t icr_TXDW;
371 } sv_stats;
372 unsigned long no_pkts_avail;
373 unsigned long clean_tx_interrupts;
374 #endif
375
376 struct ixgb_hw_stats stats;
377 };
378
379 #endif /* _IXGB_H_DEFINED_ */
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