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1 | /* | |
2 | * This file is part of the Chelsio T4 Ethernet driver for Linux. | |
3 | * | |
4 | * Copyright (c) 2003-2014 Chelsio Communications, Inc. All rights reserved. | |
5 | * | |
6 | * This software is available to you under a choice of one of two | |
7 | * licenses. You may choose to be licensed under the terms of the GNU | |
8 | * General Public License (GPL) Version 2, available from the file | |
9 | * COPYING in the main directory of this source tree, or the | |
10 | * OpenIB.org BSD license below: | |
11 | * | |
12 | * Redistribution and use in source and binary forms, with or | |
13 | * without modification, are permitted provided that the following | |
14 | * conditions are met: | |
15 | * | |
16 | * - Redistributions of source code must retain the above | |
17 | * copyright notice, this list of conditions and the following | |
18 | * disclaimer. | |
19 | * | |
20 | * - Redistributions in binary form must reproduce the above | |
21 | * copyright notice, this list of conditions and the following | |
22 | * disclaimer in the documentation and/or other materials | |
23 | * provided with the distribution. | |
24 | * | |
25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
26 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
27 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
28 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
29 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
30 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
31 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
32 | * SOFTWARE. | |
33 | */ | |
34 | ||
35 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
36 | ||
37 | #include <linux/bitmap.h> | |
38 | #include <linux/crc32.h> | |
39 | #include <linux/ctype.h> | |
40 | #include <linux/debugfs.h> | |
41 | #include <linux/err.h> | |
42 | #include <linux/etherdevice.h> | |
43 | #include <linux/firmware.h> | |
44 | #include <linux/if.h> | |
45 | #include <linux/if_vlan.h> | |
46 | #include <linux/init.h> | |
47 | #include <linux/log2.h> | |
48 | #include <linux/mdio.h> | |
49 | #include <linux/module.h> | |
50 | #include <linux/moduleparam.h> | |
51 | #include <linux/mutex.h> | |
52 | #include <linux/netdevice.h> | |
53 | #include <linux/pci.h> | |
54 | #include <linux/aer.h> | |
55 | #include <linux/rtnetlink.h> | |
56 | #include <linux/sched.h> | |
57 | #include <linux/seq_file.h> | |
58 | #include <linux/sockios.h> | |
59 | #include <linux/vmalloc.h> | |
60 | #include <linux/workqueue.h> | |
61 | #include <net/neighbour.h> | |
62 | #include <net/netevent.h> | |
63 | #include <net/addrconf.h> | |
64 | #include <asm/uaccess.h> | |
65 | ||
66 | #include "cxgb4.h" | |
67 | #include "t4_regs.h" | |
68 | #include "t4_msg.h" | |
69 | #include "t4fw_api.h" | |
70 | #include "cxgb4_dcb.h" | |
71 | #include "l2t.h" | |
72 | ||
73 | #include <../drivers/net/bonding/bonding.h> | |
74 | ||
75 | #ifdef DRV_VERSION | |
76 | #undef DRV_VERSION | |
77 | #endif | |
78 | #define DRV_VERSION "2.0.0-ko" | |
79 | #define DRV_DESC "Chelsio T4/T5 Network Driver" | |
80 | ||
81 | /* | |
82 | * Max interrupt hold-off timer value in us. Queues fall back to this value | |
83 | * under extreme memory pressure so it's largish to give the system time to | |
84 | * recover. | |
85 | */ | |
86 | #define MAX_SGE_TIMERVAL 200U | |
87 | ||
88 | enum { | |
89 | /* | |
90 | * Physical Function provisioning constants. | |
91 | */ | |
92 | PFRES_NVI = 4, /* # of Virtual Interfaces */ | |
93 | PFRES_NETHCTRL = 128, /* # of EQs used for ETH or CTRL Qs */ | |
94 | PFRES_NIQFLINT = 128, /* # of ingress Qs/w Free List(s)/intr | |
95 | */ | |
96 | PFRES_NEQ = 256, /* # of egress queues */ | |
97 | PFRES_NIQ = 0, /* # of ingress queues */ | |
98 | PFRES_TC = 0, /* PCI-E traffic class */ | |
99 | PFRES_NEXACTF = 128, /* # of exact MPS filters */ | |
100 | ||
101 | PFRES_R_CAPS = FW_CMD_CAP_PF, | |
102 | PFRES_WX_CAPS = FW_CMD_CAP_PF, | |
103 | ||
104 | #ifdef CONFIG_PCI_IOV | |
105 | /* | |
106 | * Virtual Function provisioning constants. We need two extra Ingress | |
107 | * Queues with Interrupt capability to serve as the VF's Firmware | |
108 | * Event Queue and Forwarded Interrupt Queue (when using MSI mode) -- | |
109 | * neither will have Free Lists associated with them). For each | |
110 | * Ethernet/Control Egress Queue and for each Free List, we need an | |
111 | * Egress Context. | |
112 | */ | |
113 | VFRES_NPORTS = 1, /* # of "ports" per VF */ | |
114 | VFRES_NQSETS = 2, /* # of "Queue Sets" per VF */ | |
115 | ||
116 | VFRES_NVI = VFRES_NPORTS, /* # of Virtual Interfaces */ | |
117 | VFRES_NETHCTRL = VFRES_NQSETS, /* # of EQs used for ETH or CTRL Qs */ | |
118 | VFRES_NIQFLINT = VFRES_NQSETS+2,/* # of ingress Qs/w Free List(s)/intr */ | |
119 | VFRES_NEQ = VFRES_NQSETS*2, /* # of egress queues */ | |
120 | VFRES_NIQ = 0, /* # of non-fl/int ingress queues */ | |
121 | VFRES_TC = 0, /* PCI-E traffic class */ | |
122 | VFRES_NEXACTF = 16, /* # of exact MPS filters */ | |
123 | ||
124 | VFRES_R_CAPS = FW_CMD_CAP_DMAQ|FW_CMD_CAP_VF|FW_CMD_CAP_PORT, | |
125 | VFRES_WX_CAPS = FW_CMD_CAP_DMAQ|FW_CMD_CAP_VF, | |
126 | #endif | |
127 | }; | |
128 | ||
129 | /* | |
130 | * Provide a Port Access Rights Mask for the specified PF/VF. This is very | |
131 | * static and likely not to be useful in the long run. We really need to | |
132 | * implement some form of persistent configuration which the firmware | |
133 | * controls. | |
134 | */ | |
135 | static unsigned int pfvfres_pmask(struct adapter *adapter, | |
136 | unsigned int pf, unsigned int vf) | |
137 | { | |
138 | unsigned int portn, portvec; | |
139 | ||
140 | /* | |
141 | * Give PF's access to all of the ports. | |
142 | */ | |
143 | if (vf == 0) | |
144 | return FW_PFVF_CMD_PMASK_MASK; | |
145 | ||
146 | /* | |
147 | * For VFs, we'll assign them access to the ports based purely on the | |
148 | * PF. We assign active ports in order, wrapping around if there are | |
149 | * fewer active ports than PFs: e.g. active port[pf % nports]. | |
150 | * Unfortunately the adapter's port_info structs haven't been | |
151 | * initialized yet so we have to compute this. | |
152 | */ | |
153 | if (adapter->params.nports == 0) | |
154 | return 0; | |
155 | ||
156 | portn = pf % adapter->params.nports; | |
157 | portvec = adapter->params.portvec; | |
158 | for (;;) { | |
159 | /* | |
160 | * Isolate the lowest set bit in the port vector. If we're at | |
161 | * the port number that we want, return that as the pmask. | |
162 | * otherwise mask that bit out of the port vector and | |
163 | * decrement our port number ... | |
164 | */ | |
165 | unsigned int pmask = portvec ^ (portvec & (portvec-1)); | |
166 | if (portn == 0) | |
167 | return pmask; | |
168 | portn--; | |
169 | portvec &= ~pmask; | |
170 | } | |
171 | /*NOTREACHED*/ | |
172 | } | |
173 | ||
174 | enum { | |
175 | MAX_TXQ_ENTRIES = 16384, | |
176 | MAX_CTRL_TXQ_ENTRIES = 1024, | |
177 | MAX_RSPQ_ENTRIES = 16384, | |
178 | MAX_RX_BUFFERS = 16384, | |
179 | MIN_TXQ_ENTRIES = 32, | |
180 | MIN_CTRL_TXQ_ENTRIES = 32, | |
181 | MIN_RSPQ_ENTRIES = 128, | |
182 | MIN_FL_ENTRIES = 16 | |
183 | }; | |
184 | ||
185 | /* Host shadow copy of ingress filter entry. This is in host native format | |
186 | * and doesn't match the ordering or bit order, etc. of the hardware of the | |
187 | * firmware command. The use of bit-field structure elements is purely to | |
188 | * remind ourselves of the field size limitations and save memory in the case | |
189 | * where the filter table is large. | |
190 | */ | |
191 | struct filter_entry { | |
192 | /* Administrative fields for filter. | |
193 | */ | |
194 | u32 valid:1; /* filter allocated and valid */ | |
195 | u32 locked:1; /* filter is administratively locked */ | |
196 | ||
197 | u32 pending:1; /* filter action is pending firmware reply */ | |
198 | u32 smtidx:8; /* Source MAC Table index for smac */ | |
199 | struct l2t_entry *l2t; /* Layer Two Table entry for dmac */ | |
200 | ||
201 | /* The filter itself. Most of this is a straight copy of information | |
202 | * provided by the extended ioctl(). Some fields are translated to | |
203 | * internal forms -- for instance the Ingress Queue ID passed in from | |
204 | * the ioctl() is translated into the Absolute Ingress Queue ID. | |
205 | */ | |
206 | struct ch_filter_specification fs; | |
207 | }; | |
208 | ||
209 | #define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \ | |
210 | NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\ | |
211 | NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR) | |
212 | ||
213 | #define CH_DEVICE(devid, data) { PCI_VDEVICE(CHELSIO, devid), (data) } | |
214 | ||
215 | static const struct pci_device_id cxgb4_pci_tbl[] = { | |
216 | CH_DEVICE(0xa000, 0), /* PE10K */ | |
217 | CH_DEVICE(0x4001, -1), | |
218 | CH_DEVICE(0x4002, -1), | |
219 | CH_DEVICE(0x4003, -1), | |
220 | CH_DEVICE(0x4004, -1), | |
221 | CH_DEVICE(0x4005, -1), | |
222 | CH_DEVICE(0x4006, -1), | |
223 | CH_DEVICE(0x4007, -1), | |
224 | CH_DEVICE(0x4008, -1), | |
225 | CH_DEVICE(0x4009, -1), | |
226 | CH_DEVICE(0x400a, -1), | |
227 | CH_DEVICE(0x400d, -1), | |
228 | CH_DEVICE(0x400e, -1), | |
229 | CH_DEVICE(0x4080, -1), | |
230 | CH_DEVICE(0x4081, -1), | |
231 | CH_DEVICE(0x4082, -1), | |
232 | CH_DEVICE(0x4083, -1), | |
233 | CH_DEVICE(0x4084, -1), | |
234 | CH_DEVICE(0x4085, -1), | |
235 | CH_DEVICE(0x4086, -1), | |
236 | CH_DEVICE(0x4087, -1), | |
237 | CH_DEVICE(0x4088, -1), | |
238 | CH_DEVICE(0x4401, 4), | |
239 | CH_DEVICE(0x4402, 4), | |
240 | CH_DEVICE(0x4403, 4), | |
241 | CH_DEVICE(0x4404, 4), | |
242 | CH_DEVICE(0x4405, 4), | |
243 | CH_DEVICE(0x4406, 4), | |
244 | CH_DEVICE(0x4407, 4), | |
245 | CH_DEVICE(0x4408, 4), | |
246 | CH_DEVICE(0x4409, 4), | |
247 | CH_DEVICE(0x440a, 4), | |
248 | CH_DEVICE(0x440d, 4), | |
249 | CH_DEVICE(0x440e, 4), | |
250 | CH_DEVICE(0x4480, 4), | |
251 | CH_DEVICE(0x4481, 4), | |
252 | CH_DEVICE(0x4482, 4), | |
253 | CH_DEVICE(0x4483, 4), | |
254 | CH_DEVICE(0x4484, 4), | |
255 | CH_DEVICE(0x4485, 4), | |
256 | CH_DEVICE(0x4486, 4), | |
257 | CH_DEVICE(0x4487, 4), | |
258 | CH_DEVICE(0x4488, 4), | |
259 | CH_DEVICE(0x5001, 4), | |
260 | CH_DEVICE(0x5002, 4), | |
261 | CH_DEVICE(0x5003, 4), | |
262 | CH_DEVICE(0x5004, 4), | |
263 | CH_DEVICE(0x5005, 4), | |
264 | CH_DEVICE(0x5006, 4), | |
265 | CH_DEVICE(0x5007, 4), | |
266 | CH_DEVICE(0x5008, 4), | |
267 | CH_DEVICE(0x5009, 4), | |
268 | CH_DEVICE(0x500A, 4), | |
269 | CH_DEVICE(0x500B, 4), | |
270 | CH_DEVICE(0x500C, 4), | |
271 | CH_DEVICE(0x500D, 4), | |
272 | CH_DEVICE(0x500E, 4), | |
273 | CH_DEVICE(0x500F, 4), | |
274 | CH_DEVICE(0x5010, 4), | |
275 | CH_DEVICE(0x5011, 4), | |
276 | CH_DEVICE(0x5012, 4), | |
277 | CH_DEVICE(0x5013, 4), | |
278 | CH_DEVICE(0x5014, 4), | |
279 | CH_DEVICE(0x5015, 4), | |
280 | CH_DEVICE(0x5080, 4), | |
281 | CH_DEVICE(0x5081, 4), | |
282 | CH_DEVICE(0x5082, 4), | |
283 | CH_DEVICE(0x5083, 4), | |
284 | CH_DEVICE(0x5084, 4), | |
285 | CH_DEVICE(0x5085, 4), | |
286 | CH_DEVICE(0x5401, 4), | |
287 | CH_DEVICE(0x5402, 4), | |
288 | CH_DEVICE(0x5403, 4), | |
289 | CH_DEVICE(0x5404, 4), | |
290 | CH_DEVICE(0x5405, 4), | |
291 | CH_DEVICE(0x5406, 4), | |
292 | CH_DEVICE(0x5407, 4), | |
293 | CH_DEVICE(0x5408, 4), | |
294 | CH_DEVICE(0x5409, 4), | |
295 | CH_DEVICE(0x540A, 4), | |
296 | CH_DEVICE(0x540B, 4), | |
297 | CH_DEVICE(0x540C, 4), | |
298 | CH_DEVICE(0x540D, 4), | |
299 | CH_DEVICE(0x540E, 4), | |
300 | CH_DEVICE(0x540F, 4), | |
301 | CH_DEVICE(0x5410, 4), | |
302 | CH_DEVICE(0x5411, 4), | |
303 | CH_DEVICE(0x5412, 4), | |
304 | CH_DEVICE(0x5413, 4), | |
305 | CH_DEVICE(0x5414, 4), | |
306 | CH_DEVICE(0x5415, 4), | |
307 | CH_DEVICE(0x5480, 4), | |
308 | CH_DEVICE(0x5481, 4), | |
309 | CH_DEVICE(0x5482, 4), | |
310 | CH_DEVICE(0x5483, 4), | |
311 | CH_DEVICE(0x5484, 4), | |
312 | CH_DEVICE(0x5485, 4), | |
313 | { 0, } | |
314 | }; | |
315 | ||
316 | #define FW4_FNAME "cxgb4/t4fw.bin" | |
317 | #define FW5_FNAME "cxgb4/t5fw.bin" | |
318 | #define FW4_CFNAME "cxgb4/t4-config.txt" | |
319 | #define FW5_CFNAME "cxgb4/t5-config.txt" | |
320 | ||
321 | MODULE_DESCRIPTION(DRV_DESC); | |
322 | MODULE_AUTHOR("Chelsio Communications"); | |
323 | MODULE_LICENSE("Dual BSD/GPL"); | |
324 | MODULE_VERSION(DRV_VERSION); | |
325 | MODULE_DEVICE_TABLE(pci, cxgb4_pci_tbl); | |
326 | MODULE_FIRMWARE(FW4_FNAME); | |
327 | MODULE_FIRMWARE(FW5_FNAME); | |
328 | ||
329 | /* | |
330 | * Normally we're willing to become the firmware's Master PF but will be happy | |
331 | * if another PF has already become the Master and initialized the adapter. | |
332 | * Setting "force_init" will cause this driver to forcibly establish itself as | |
333 | * the Master PF and initialize the adapter. | |
334 | */ | |
335 | static uint force_init; | |
336 | ||
337 | module_param(force_init, uint, 0644); | |
338 | MODULE_PARM_DESC(force_init, "Forcibly become Master PF and initialize adapter"); | |
339 | ||
340 | /* | |
341 | * Normally if the firmware we connect to has Configuration File support, we | |
342 | * use that and only fall back to the old Driver-based initialization if the | |
343 | * Configuration File fails for some reason. If force_old_init is set, then | |
344 | * we'll always use the old Driver-based initialization sequence. | |
345 | */ | |
346 | static uint force_old_init; | |
347 | ||
348 | module_param(force_old_init, uint, 0644); | |
349 | MODULE_PARM_DESC(force_old_init, "Force old initialization sequence"); | |
350 | ||
351 | static int dflt_msg_enable = DFLT_MSG_ENABLE; | |
352 | ||
353 | module_param(dflt_msg_enable, int, 0644); | |
354 | MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T4 default message enable bitmap"); | |
355 | ||
356 | /* | |
357 | * The driver uses the best interrupt scheme available on a platform in the | |
358 | * order MSI-X, MSI, legacy INTx interrupts. This parameter determines which | |
359 | * of these schemes the driver may consider as follows: | |
360 | * | |
361 | * msi = 2: choose from among all three options | |
362 | * msi = 1: only consider MSI and INTx interrupts | |
363 | * msi = 0: force INTx interrupts | |
364 | */ | |
365 | static int msi = 2; | |
366 | ||
367 | module_param(msi, int, 0644); | |
368 | MODULE_PARM_DESC(msi, "whether to use INTx (0), MSI (1) or MSI-X (2)"); | |
369 | ||
370 | /* | |
371 | * Queue interrupt hold-off timer values. Queues default to the first of these | |
372 | * upon creation. | |
373 | */ | |
374 | static unsigned int intr_holdoff[SGE_NTIMERS - 1] = { 5, 10, 20, 50, 100 }; | |
375 | ||
376 | module_param_array(intr_holdoff, uint, NULL, 0644); | |
377 | MODULE_PARM_DESC(intr_holdoff, "values for queue interrupt hold-off timers " | |
378 | "0..4 in microseconds"); | |
379 | ||
380 | static unsigned int intr_cnt[SGE_NCOUNTERS - 1] = { 4, 8, 16 }; | |
381 | ||
382 | module_param_array(intr_cnt, uint, NULL, 0644); | |
383 | MODULE_PARM_DESC(intr_cnt, | |
384 | "thresholds 1..3 for queue interrupt packet counters"); | |
385 | ||
386 | /* | |
387 | * Normally we tell the chip to deliver Ingress Packets into our DMA buffers | |
388 | * offset by 2 bytes in order to have the IP headers line up on 4-byte | |
389 | * boundaries. This is a requirement for many architectures which will throw | |
390 | * a machine check fault if an attempt is made to access one of the 4-byte IP | |
391 | * header fields on a non-4-byte boundary. And it's a major performance issue | |
392 | * even on some architectures which allow it like some implementations of the | |
393 | * x86 ISA. However, some architectures don't mind this and for some very | |
394 | * edge-case performance sensitive applications (like forwarding large volumes | |
395 | * of small packets), setting this DMA offset to 0 will decrease the number of | |
396 | * PCI-E Bus transfers enough to measurably affect performance. | |
397 | */ | |
398 | static int rx_dma_offset = 2; | |
399 | ||
400 | static bool vf_acls; | |
401 | ||
402 | #ifdef CONFIG_PCI_IOV | |
403 | module_param(vf_acls, bool, 0644); | |
404 | MODULE_PARM_DESC(vf_acls, "if set enable virtualization L2 ACL enforcement"); | |
405 | ||
406 | /* Configure the number of PCI-E Virtual Function which are to be instantiated | |
407 | * on SR-IOV Capable Physical Functions. | |
408 | */ | |
409 | static unsigned int num_vf[NUM_OF_PF_WITH_SRIOV]; | |
410 | ||
411 | module_param_array(num_vf, uint, NULL, 0644); | |
412 | MODULE_PARM_DESC(num_vf, "number of VFs for each of PFs 0-3"); | |
413 | #endif | |
414 | ||
415 | /* TX Queue select used to determine what algorithm to use for selecting TX | |
416 | * queue. Select between the kernel provided function (select_queue=0) or user | |
417 | * cxgb_select_queue function (select_queue=1) | |
418 | * | |
419 | * Default: select_queue=0 | |
420 | */ | |
421 | static int select_queue; | |
422 | module_param(select_queue, int, 0644); | |
423 | MODULE_PARM_DESC(select_queue, | |
424 | "Select between kernel provided method of selecting or driver method of selecting TX queue. Default is kernel method."); | |
425 | ||
426 | /* | |
427 | * The filter TCAM has a fixed portion and a variable portion. The fixed | |
428 | * portion can match on source/destination IP IPv4/IPv6 addresses and TCP/UDP | |
429 | * ports. The variable portion is 36 bits which can include things like Exact | |
430 | * Match MAC Index (9 bits), Ether Type (16 bits), IP Protocol (8 bits), | |
431 | * [Inner] VLAN Tag (17 bits), etc. which, if all were somehow selected, would | |
432 | * far exceed the 36-bit budget for this "compressed" header portion of the | |
433 | * filter. Thus, we have a scarce resource which must be carefully managed. | |
434 | * | |
435 | * By default we set this up to mostly match the set of filter matching | |
436 | * capabilities of T3 but with accommodations for some of T4's more | |
437 | * interesting features: | |
438 | * | |
439 | * { IP Fragment (1), MPS Match Type (3), IP Protocol (8), | |
440 | * [Inner] VLAN (17), Port (3), FCoE (1) } | |
441 | */ | |
442 | enum { | |
443 | TP_VLAN_PRI_MAP_DEFAULT = HW_TPL_FR_MT_PR_IV_P_FC, | |
444 | TP_VLAN_PRI_MAP_FIRST = FCOE_SHIFT, | |
445 | TP_VLAN_PRI_MAP_LAST = FRAGMENTATION_SHIFT, | |
446 | }; | |
447 | ||
448 | static unsigned int tp_vlan_pri_map = TP_VLAN_PRI_MAP_DEFAULT; | |
449 | ||
450 | module_param(tp_vlan_pri_map, uint, 0644); | |
451 | MODULE_PARM_DESC(tp_vlan_pri_map, "global compressed filter configuration"); | |
452 | ||
453 | static struct dentry *cxgb4_debugfs_root; | |
454 | ||
455 | static LIST_HEAD(adapter_list); | |
456 | static DEFINE_MUTEX(uld_mutex); | |
457 | /* Adapter list to be accessed from atomic context */ | |
458 | static LIST_HEAD(adap_rcu_list); | |
459 | static DEFINE_SPINLOCK(adap_rcu_lock); | |
460 | static struct cxgb4_uld_info ulds[CXGB4_ULD_MAX]; | |
461 | static const char *uld_str[] = { "RDMA", "iSCSI" }; | |
462 | ||
463 | static void link_report(struct net_device *dev) | |
464 | { | |
465 | if (!netif_carrier_ok(dev)) | |
466 | netdev_info(dev, "link down\n"); | |
467 | else { | |
468 | static const char *fc[] = { "no", "Rx", "Tx", "Tx/Rx" }; | |
469 | ||
470 | const char *s = "10Mbps"; | |
471 | const struct port_info *p = netdev_priv(dev); | |
472 | ||
473 | switch (p->link_cfg.speed) { | |
474 | case 10000: | |
475 | s = "10Gbps"; | |
476 | break; | |
477 | case 1000: | |
478 | s = "1000Mbps"; | |
479 | break; | |
480 | case 100: | |
481 | s = "100Mbps"; | |
482 | break; | |
483 | case 40000: | |
484 | s = "40Gbps"; | |
485 | break; | |
486 | } | |
487 | ||
488 | netdev_info(dev, "link up, %s, full-duplex, %s PAUSE\n", s, | |
489 | fc[p->link_cfg.fc]); | |
490 | } | |
491 | } | |
492 | ||
493 | #ifdef CONFIG_CHELSIO_T4_DCB | |
494 | /* Set up/tear down Data Center Bridging Priority mapping for a net device. */ | |
495 | static void dcb_tx_queue_prio_enable(struct net_device *dev, int enable) | |
496 | { | |
497 | struct port_info *pi = netdev_priv(dev); | |
498 | struct adapter *adap = pi->adapter; | |
499 | struct sge_eth_txq *txq = &adap->sge.ethtxq[pi->first_qset]; | |
500 | int i; | |
501 | ||
502 | /* We use a simple mapping of Port TX Queue Index to DCB | |
503 | * Priority when we're enabling DCB. | |
504 | */ | |
505 | for (i = 0; i < pi->nqsets; i++, txq++) { | |
506 | u32 name, value; | |
507 | int err; | |
508 | ||
509 | name = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DMAQ) | | |
510 | FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DMAQ_EQ_DCBPRIO_ETH) | | |
511 | FW_PARAMS_PARAM_YZ(txq->q.cntxt_id)); | |
512 | value = enable ? i : 0xffffffff; | |
513 | ||
514 | /* Since we can be called while atomic (from "interrupt | |
515 | * level") we need to issue the Set Parameters Commannd | |
516 | * without sleeping (timeout < 0). | |
517 | */ | |
518 | err = t4_set_params_nosleep(adap, adap->mbox, adap->fn, 0, 1, | |
519 | &name, &value); | |
520 | ||
521 | if (err) | |
522 | dev_err(adap->pdev_dev, | |
523 | "Can't %s DCB Priority on port %d, TX Queue %d: err=%d\n", | |
524 | enable ? "set" : "unset", pi->port_id, i, -err); | |
525 | else | |
526 | txq->dcb_prio = value; | |
527 | } | |
528 | } | |
529 | #endif /* CONFIG_CHELSIO_T4_DCB */ | |
530 | ||
531 | void t4_os_link_changed(struct adapter *adapter, int port_id, int link_stat) | |
532 | { | |
533 | struct net_device *dev = adapter->port[port_id]; | |
534 | ||
535 | /* Skip changes from disabled ports. */ | |
536 | if (netif_running(dev) && link_stat != netif_carrier_ok(dev)) { | |
537 | if (link_stat) | |
538 | netif_carrier_on(dev); | |
539 | else { | |
540 | #ifdef CONFIG_CHELSIO_T4_DCB | |
541 | cxgb4_dcb_state_init(dev); | |
542 | dcb_tx_queue_prio_enable(dev, false); | |
543 | #endif /* CONFIG_CHELSIO_T4_DCB */ | |
544 | netif_carrier_off(dev); | |
545 | } | |
546 | ||
547 | link_report(dev); | |
548 | } | |
549 | } | |
550 | ||
551 | void t4_os_portmod_changed(const struct adapter *adap, int port_id) | |
552 | { | |
553 | static const char *mod_str[] = { | |
554 | NULL, "LR", "SR", "ER", "passive DA", "active DA", "LRM" | |
555 | }; | |
556 | ||
557 | const struct net_device *dev = adap->port[port_id]; | |
558 | const struct port_info *pi = netdev_priv(dev); | |
559 | ||
560 | if (pi->mod_type == FW_PORT_MOD_TYPE_NONE) | |
561 | netdev_info(dev, "port module unplugged\n"); | |
562 | else if (pi->mod_type < ARRAY_SIZE(mod_str)) | |
563 | netdev_info(dev, "%s module inserted\n", mod_str[pi->mod_type]); | |
564 | } | |
565 | ||
566 | /* | |
567 | * Configure the exact and hash address filters to handle a port's multicast | |
568 | * and secondary unicast MAC addresses. | |
569 | */ | |
570 | static int set_addr_filters(const struct net_device *dev, bool sleep) | |
571 | { | |
572 | u64 mhash = 0; | |
573 | u64 uhash = 0; | |
574 | bool free = true; | |
575 | u16 filt_idx[7]; | |
576 | const u8 *addr[7]; | |
577 | int ret, naddr = 0; | |
578 | const struct netdev_hw_addr *ha; | |
579 | int uc_cnt = netdev_uc_count(dev); | |
580 | int mc_cnt = netdev_mc_count(dev); | |
581 | const struct port_info *pi = netdev_priv(dev); | |
582 | unsigned int mb = pi->adapter->fn; | |
583 | ||
584 | /* first do the secondary unicast addresses */ | |
585 | netdev_for_each_uc_addr(ha, dev) { | |
586 | addr[naddr++] = ha->addr; | |
587 | if (--uc_cnt == 0 || naddr >= ARRAY_SIZE(addr)) { | |
588 | ret = t4_alloc_mac_filt(pi->adapter, mb, pi->viid, free, | |
589 | naddr, addr, filt_idx, &uhash, sleep); | |
590 | if (ret < 0) | |
591 | return ret; | |
592 | ||
593 | free = false; | |
594 | naddr = 0; | |
595 | } | |
596 | } | |
597 | ||
598 | /* next set up the multicast addresses */ | |
599 | netdev_for_each_mc_addr(ha, dev) { | |
600 | addr[naddr++] = ha->addr; | |
601 | if (--mc_cnt == 0 || naddr >= ARRAY_SIZE(addr)) { | |
602 | ret = t4_alloc_mac_filt(pi->adapter, mb, pi->viid, free, | |
603 | naddr, addr, filt_idx, &mhash, sleep); | |
604 | if (ret < 0) | |
605 | return ret; | |
606 | ||
607 | free = false; | |
608 | naddr = 0; | |
609 | } | |
610 | } | |
611 | ||
612 | return t4_set_addr_hash(pi->adapter, mb, pi->viid, uhash != 0, | |
613 | uhash | mhash, sleep); | |
614 | } | |
615 | ||
616 | int dbfifo_int_thresh = 10; /* 10 == 640 entry threshold */ | |
617 | module_param(dbfifo_int_thresh, int, 0644); | |
618 | MODULE_PARM_DESC(dbfifo_int_thresh, "doorbell fifo interrupt threshold"); | |
619 | ||
620 | /* | |
621 | * usecs to sleep while draining the dbfifo | |
622 | */ | |
623 | static int dbfifo_drain_delay = 1000; | |
624 | module_param(dbfifo_drain_delay, int, 0644); | |
625 | MODULE_PARM_DESC(dbfifo_drain_delay, | |
626 | "usecs to sleep while draining the dbfifo"); | |
627 | ||
628 | /* | |
629 | * Set Rx properties of a port, such as promiscruity, address filters, and MTU. | |
630 | * If @mtu is -1 it is left unchanged. | |
631 | */ | |
632 | static int set_rxmode(struct net_device *dev, int mtu, bool sleep_ok) | |
633 | { | |
634 | int ret; | |
635 | struct port_info *pi = netdev_priv(dev); | |
636 | ||
637 | ret = set_addr_filters(dev, sleep_ok); | |
638 | if (ret == 0) | |
639 | ret = t4_set_rxmode(pi->adapter, pi->adapter->fn, pi->viid, mtu, | |
640 | (dev->flags & IFF_PROMISC) ? 1 : 0, | |
641 | (dev->flags & IFF_ALLMULTI) ? 1 : 0, 1, -1, | |
642 | sleep_ok); | |
643 | return ret; | |
644 | } | |
645 | ||
646 | static struct workqueue_struct *workq; | |
647 | ||
648 | /** | |
649 | * link_start - enable a port | |
650 | * @dev: the port to enable | |
651 | * | |
652 | * Performs the MAC and PHY actions needed to enable a port. | |
653 | */ | |
654 | static int link_start(struct net_device *dev) | |
655 | { | |
656 | int ret; | |
657 | struct port_info *pi = netdev_priv(dev); | |
658 | unsigned int mb = pi->adapter->fn; | |
659 | ||
660 | /* | |
661 | * We do not set address filters and promiscuity here, the stack does | |
662 | * that step explicitly. | |
663 | */ | |
664 | ret = t4_set_rxmode(pi->adapter, mb, pi->viid, dev->mtu, -1, -1, -1, | |
665 | !!(dev->features & NETIF_F_HW_VLAN_CTAG_RX), true); | |
666 | if (ret == 0) { | |
667 | ret = t4_change_mac(pi->adapter, mb, pi->viid, | |
668 | pi->xact_addr_filt, dev->dev_addr, true, | |
669 | true); | |
670 | if (ret >= 0) { | |
671 | pi->xact_addr_filt = ret; | |
672 | ret = 0; | |
673 | } | |
674 | } | |
675 | if (ret == 0) | |
676 | ret = t4_link_start(pi->adapter, mb, pi->tx_chan, | |
677 | &pi->link_cfg); | |
678 | if (ret == 0) { | |
679 | local_bh_disable(); | |
680 | ret = t4_enable_vi_params(pi->adapter, mb, pi->viid, true, | |
681 | true, CXGB4_DCB_ENABLED); | |
682 | local_bh_enable(); | |
683 | } | |
684 | ||
685 | return ret; | |
686 | } | |
687 | ||
688 | int cxgb4_dcb_enabled(const struct net_device *dev) | |
689 | { | |
690 | #ifdef CONFIG_CHELSIO_T4_DCB | |
691 | struct port_info *pi = netdev_priv(dev); | |
692 | ||
693 | return pi->dcb.state == CXGB4_DCB_STATE_FW_ALLSYNCED; | |
694 | #else | |
695 | return 0; | |
696 | #endif | |
697 | } | |
698 | EXPORT_SYMBOL(cxgb4_dcb_enabled); | |
699 | ||
700 | #ifdef CONFIG_CHELSIO_T4_DCB | |
701 | /* Handle a Data Center Bridging update message from the firmware. */ | |
702 | static void dcb_rpl(struct adapter *adap, const struct fw_port_cmd *pcmd) | |
703 | { | |
704 | int port = FW_PORT_CMD_PORTID_GET(ntohl(pcmd->op_to_portid)); | |
705 | struct net_device *dev = adap->port[port]; | |
706 | int old_dcb_enabled = cxgb4_dcb_enabled(dev); | |
707 | int new_dcb_enabled; | |
708 | ||
709 | cxgb4_dcb_handle_fw_update(adap, pcmd); | |
710 | new_dcb_enabled = cxgb4_dcb_enabled(dev); | |
711 | ||
712 | /* If the DCB has become enabled or disabled on the port then we're | |
713 | * going to need to set up/tear down DCB Priority parameters for the | |
714 | * TX Queues associated with the port. | |
715 | */ | |
716 | if (new_dcb_enabled != old_dcb_enabled) | |
717 | dcb_tx_queue_prio_enable(dev, new_dcb_enabled); | |
718 | } | |
719 | #endif /* CONFIG_CHELSIO_T4_DCB */ | |
720 | ||
721 | /* Clear a filter and release any of its resources that we own. This also | |
722 | * clears the filter's "pending" status. | |
723 | */ | |
724 | static void clear_filter(struct adapter *adap, struct filter_entry *f) | |
725 | { | |
726 | /* If the new or old filter have loopback rewriteing rules then we'll | |
727 | * need to free any existing Layer Two Table (L2T) entries of the old | |
728 | * filter rule. The firmware will handle freeing up any Source MAC | |
729 | * Table (SMT) entries used for rewriting Source MAC Addresses in | |
730 | * loopback rules. | |
731 | */ | |
732 | if (f->l2t) | |
733 | cxgb4_l2t_release(f->l2t); | |
734 | ||
735 | /* The zeroing of the filter rule below clears the filter valid, | |
736 | * pending, locked flags, l2t pointer, etc. so it's all we need for | |
737 | * this operation. | |
738 | */ | |
739 | memset(f, 0, sizeof(*f)); | |
740 | } | |
741 | ||
742 | /* Handle a filter write/deletion reply. | |
743 | */ | |
744 | static void filter_rpl(struct adapter *adap, const struct cpl_set_tcb_rpl *rpl) | |
745 | { | |
746 | unsigned int idx = GET_TID(rpl); | |
747 | unsigned int nidx = idx - adap->tids.ftid_base; | |
748 | unsigned int ret; | |
749 | struct filter_entry *f; | |
750 | ||
751 | if (idx >= adap->tids.ftid_base && nidx < | |
752 | (adap->tids.nftids + adap->tids.nsftids)) { | |
753 | idx = nidx; | |
754 | ret = GET_TCB_COOKIE(rpl->cookie); | |
755 | f = &adap->tids.ftid_tab[idx]; | |
756 | ||
757 | if (ret == FW_FILTER_WR_FLT_DELETED) { | |
758 | /* Clear the filter when we get confirmation from the | |
759 | * hardware that the filter has been deleted. | |
760 | */ | |
761 | clear_filter(adap, f); | |
762 | } else if (ret == FW_FILTER_WR_SMT_TBL_FULL) { | |
763 | dev_err(adap->pdev_dev, "filter %u setup failed due to full SMT\n", | |
764 | idx); | |
765 | clear_filter(adap, f); | |
766 | } else if (ret == FW_FILTER_WR_FLT_ADDED) { | |
767 | f->smtidx = (be64_to_cpu(rpl->oldval) >> 24) & 0xff; | |
768 | f->pending = 0; /* asynchronous setup completed */ | |
769 | f->valid = 1; | |
770 | } else { | |
771 | /* Something went wrong. Issue a warning about the | |
772 | * problem and clear everything out. | |
773 | */ | |
774 | dev_err(adap->pdev_dev, "filter %u setup failed with error %u\n", | |
775 | idx, ret); | |
776 | clear_filter(adap, f); | |
777 | } | |
778 | } | |
779 | } | |
780 | ||
781 | /* Response queue handler for the FW event queue. | |
782 | */ | |
783 | static int fwevtq_handler(struct sge_rspq *q, const __be64 *rsp, | |
784 | const struct pkt_gl *gl) | |
785 | { | |
786 | u8 opcode = ((const struct rss_header *)rsp)->opcode; | |
787 | ||
788 | rsp++; /* skip RSS header */ | |
789 | ||
790 | /* FW can send EGR_UPDATEs encapsulated in a CPL_FW4_MSG. | |
791 | */ | |
792 | if (unlikely(opcode == CPL_FW4_MSG && | |
793 | ((const struct cpl_fw4_msg *)rsp)->type == FW_TYPE_RSSCPL)) { | |
794 | rsp++; | |
795 | opcode = ((const struct rss_header *)rsp)->opcode; | |
796 | rsp++; | |
797 | if (opcode != CPL_SGE_EGR_UPDATE) { | |
798 | dev_err(q->adap->pdev_dev, "unexpected FW4/CPL %#x on FW event queue\n" | |
799 | , opcode); | |
800 | goto out; | |
801 | } | |
802 | } | |
803 | ||
804 | if (likely(opcode == CPL_SGE_EGR_UPDATE)) { | |
805 | const struct cpl_sge_egr_update *p = (void *)rsp; | |
806 | unsigned int qid = EGR_QID(ntohl(p->opcode_qid)); | |
807 | struct sge_txq *txq; | |
808 | ||
809 | txq = q->adap->sge.egr_map[qid - q->adap->sge.egr_start]; | |
810 | txq->restarts++; | |
811 | if ((u8 *)txq < (u8 *)q->adap->sge.ofldtxq) { | |
812 | struct sge_eth_txq *eq; | |
813 | ||
814 | eq = container_of(txq, struct sge_eth_txq, q); | |
815 | netif_tx_wake_queue(eq->txq); | |
816 | } else { | |
817 | struct sge_ofld_txq *oq; | |
818 | ||
819 | oq = container_of(txq, struct sge_ofld_txq, q); | |
820 | tasklet_schedule(&oq->qresume_tsk); | |
821 | } | |
822 | } else if (opcode == CPL_FW6_MSG || opcode == CPL_FW4_MSG) { | |
823 | const struct cpl_fw6_msg *p = (void *)rsp; | |
824 | ||
825 | #ifdef CONFIG_CHELSIO_T4_DCB | |
826 | const struct fw_port_cmd *pcmd = (const void *)p->data; | |
827 | unsigned int cmd = FW_CMD_OP_GET(ntohl(pcmd->op_to_portid)); | |
828 | unsigned int action = | |
829 | FW_PORT_CMD_ACTION_GET(ntohl(pcmd->action_to_len16)); | |
830 | ||
831 | if (cmd == FW_PORT_CMD && | |
832 | action == FW_PORT_ACTION_GET_PORT_INFO) { | |
833 | int port = FW_PORT_CMD_PORTID_GET( | |
834 | be32_to_cpu(pcmd->op_to_portid)); | |
835 | struct net_device *dev = q->adap->port[port]; | |
836 | int state_input = ((pcmd->u.info.dcbxdis_pkd & | |
837 | FW_PORT_CMD_DCBXDIS) | |
838 | ? CXGB4_DCB_INPUT_FW_DISABLED | |
839 | : CXGB4_DCB_INPUT_FW_ENABLED); | |
840 | ||
841 | cxgb4_dcb_state_fsm(dev, state_input); | |
842 | } | |
843 | ||
844 | if (cmd == FW_PORT_CMD && | |
845 | action == FW_PORT_ACTION_L2_DCB_CFG) | |
846 | dcb_rpl(q->adap, pcmd); | |
847 | else | |
848 | #endif | |
849 | if (p->type == 0) | |
850 | t4_handle_fw_rpl(q->adap, p->data); | |
851 | } else if (opcode == CPL_L2T_WRITE_RPL) { | |
852 | const struct cpl_l2t_write_rpl *p = (void *)rsp; | |
853 | ||
854 | do_l2t_write_rpl(q->adap, p); | |
855 | } else if (opcode == CPL_SET_TCB_RPL) { | |
856 | const struct cpl_set_tcb_rpl *p = (void *)rsp; | |
857 | ||
858 | filter_rpl(q->adap, p); | |
859 | } else | |
860 | dev_err(q->adap->pdev_dev, | |
861 | "unexpected CPL %#x on FW event queue\n", opcode); | |
862 | out: | |
863 | return 0; | |
864 | } | |
865 | ||
866 | /** | |
867 | * uldrx_handler - response queue handler for ULD queues | |
868 | * @q: the response queue that received the packet | |
869 | * @rsp: the response queue descriptor holding the offload message | |
870 | * @gl: the gather list of packet fragments | |
871 | * | |
872 | * Deliver an ingress offload packet to a ULD. All processing is done by | |
873 | * the ULD, we just maintain statistics. | |
874 | */ | |
875 | static int uldrx_handler(struct sge_rspq *q, const __be64 *rsp, | |
876 | const struct pkt_gl *gl) | |
877 | { | |
878 | struct sge_ofld_rxq *rxq = container_of(q, struct sge_ofld_rxq, rspq); | |
879 | ||
880 | /* FW can send CPLs encapsulated in a CPL_FW4_MSG. | |
881 | */ | |
882 | if (((const struct rss_header *)rsp)->opcode == CPL_FW4_MSG && | |
883 | ((const struct cpl_fw4_msg *)(rsp + 1))->type == FW_TYPE_RSSCPL) | |
884 | rsp += 2; | |
885 | ||
886 | if (ulds[q->uld].rx_handler(q->adap->uld_handle[q->uld], rsp, gl)) { | |
887 | rxq->stats.nomem++; | |
888 | return -1; | |
889 | } | |
890 | if (gl == NULL) | |
891 | rxq->stats.imm++; | |
892 | else if (gl == CXGB4_MSG_AN) | |
893 | rxq->stats.an++; | |
894 | else | |
895 | rxq->stats.pkts++; | |
896 | return 0; | |
897 | } | |
898 | ||
899 | static void disable_msi(struct adapter *adapter) | |
900 | { | |
901 | if (adapter->flags & USING_MSIX) { | |
902 | pci_disable_msix(adapter->pdev); | |
903 | adapter->flags &= ~USING_MSIX; | |
904 | } else if (adapter->flags & USING_MSI) { | |
905 | pci_disable_msi(adapter->pdev); | |
906 | adapter->flags &= ~USING_MSI; | |
907 | } | |
908 | } | |
909 | ||
910 | /* | |
911 | * Interrupt handler for non-data events used with MSI-X. | |
912 | */ | |
913 | static irqreturn_t t4_nondata_intr(int irq, void *cookie) | |
914 | { | |
915 | struct adapter *adap = cookie; | |
916 | ||
917 | u32 v = t4_read_reg(adap, MYPF_REG(PL_PF_INT_CAUSE)); | |
918 | if (v & PFSW) { | |
919 | adap->swintr = 1; | |
920 | t4_write_reg(adap, MYPF_REG(PL_PF_INT_CAUSE), v); | |
921 | } | |
922 | t4_slow_intr_handler(adap); | |
923 | return IRQ_HANDLED; | |
924 | } | |
925 | ||
926 | /* | |
927 | * Name the MSI-X interrupts. | |
928 | */ | |
929 | static void name_msix_vecs(struct adapter *adap) | |
930 | { | |
931 | int i, j, msi_idx = 2, n = sizeof(adap->msix_info[0].desc); | |
932 | ||
933 | /* non-data interrupts */ | |
934 | snprintf(adap->msix_info[0].desc, n, "%s", adap->port[0]->name); | |
935 | ||
936 | /* FW events */ | |
937 | snprintf(adap->msix_info[1].desc, n, "%s-FWeventq", | |
938 | adap->port[0]->name); | |
939 | ||
940 | /* Ethernet queues */ | |
941 | for_each_port(adap, j) { | |
942 | struct net_device *d = adap->port[j]; | |
943 | const struct port_info *pi = netdev_priv(d); | |
944 | ||
945 | for (i = 0; i < pi->nqsets; i++, msi_idx++) | |
946 | snprintf(adap->msix_info[msi_idx].desc, n, "%s-Rx%d", | |
947 | d->name, i); | |
948 | } | |
949 | ||
950 | /* offload queues */ | |
951 | for_each_ofldrxq(&adap->sge, i) | |
952 | snprintf(adap->msix_info[msi_idx++].desc, n, "%s-ofld%d", | |
953 | adap->port[0]->name, i); | |
954 | ||
955 | for_each_rdmarxq(&adap->sge, i) | |
956 | snprintf(adap->msix_info[msi_idx++].desc, n, "%s-rdma%d", | |
957 | adap->port[0]->name, i); | |
958 | ||
959 | for_each_rdmaciq(&adap->sge, i) | |
960 | snprintf(adap->msix_info[msi_idx++].desc, n, "%s-rdma-ciq%d", | |
961 | adap->port[0]->name, i); | |
962 | } | |
963 | ||
964 | static int request_msix_queue_irqs(struct adapter *adap) | |
965 | { | |
966 | struct sge *s = &adap->sge; | |
967 | int err, ethqidx, ofldqidx = 0, rdmaqidx = 0, rdmaciqqidx = 0; | |
968 | int msi_index = 2; | |
969 | ||
970 | err = request_irq(adap->msix_info[1].vec, t4_sge_intr_msix, 0, | |
971 | adap->msix_info[1].desc, &s->fw_evtq); | |
972 | if (err) | |
973 | return err; | |
974 | ||
975 | for_each_ethrxq(s, ethqidx) { | |
976 | err = request_irq(adap->msix_info[msi_index].vec, | |
977 | t4_sge_intr_msix, 0, | |
978 | adap->msix_info[msi_index].desc, | |
979 | &s->ethrxq[ethqidx].rspq); | |
980 | if (err) | |
981 | goto unwind; | |
982 | msi_index++; | |
983 | } | |
984 | for_each_ofldrxq(s, ofldqidx) { | |
985 | err = request_irq(adap->msix_info[msi_index].vec, | |
986 | t4_sge_intr_msix, 0, | |
987 | adap->msix_info[msi_index].desc, | |
988 | &s->ofldrxq[ofldqidx].rspq); | |
989 | if (err) | |
990 | goto unwind; | |
991 | msi_index++; | |
992 | } | |
993 | for_each_rdmarxq(s, rdmaqidx) { | |
994 | err = request_irq(adap->msix_info[msi_index].vec, | |
995 | t4_sge_intr_msix, 0, | |
996 | adap->msix_info[msi_index].desc, | |
997 | &s->rdmarxq[rdmaqidx].rspq); | |
998 | if (err) | |
999 | goto unwind; | |
1000 | msi_index++; | |
1001 | } | |
1002 | for_each_rdmaciq(s, rdmaciqqidx) { | |
1003 | err = request_irq(adap->msix_info[msi_index].vec, | |
1004 | t4_sge_intr_msix, 0, | |
1005 | adap->msix_info[msi_index].desc, | |
1006 | &s->rdmaciq[rdmaciqqidx].rspq); | |
1007 | if (err) | |
1008 | goto unwind; | |
1009 | msi_index++; | |
1010 | } | |
1011 | return 0; | |
1012 | ||
1013 | unwind: | |
1014 | while (--rdmaciqqidx >= 0) | |
1015 | free_irq(adap->msix_info[--msi_index].vec, | |
1016 | &s->rdmaciq[rdmaciqqidx].rspq); | |
1017 | while (--rdmaqidx >= 0) | |
1018 | free_irq(adap->msix_info[--msi_index].vec, | |
1019 | &s->rdmarxq[rdmaqidx].rspq); | |
1020 | while (--ofldqidx >= 0) | |
1021 | free_irq(adap->msix_info[--msi_index].vec, | |
1022 | &s->ofldrxq[ofldqidx].rspq); | |
1023 | while (--ethqidx >= 0) | |
1024 | free_irq(adap->msix_info[--msi_index].vec, | |
1025 | &s->ethrxq[ethqidx].rspq); | |
1026 | free_irq(adap->msix_info[1].vec, &s->fw_evtq); | |
1027 | return err; | |
1028 | } | |
1029 | ||
1030 | static void free_msix_queue_irqs(struct adapter *adap) | |
1031 | { | |
1032 | int i, msi_index = 2; | |
1033 | struct sge *s = &adap->sge; | |
1034 | ||
1035 | free_irq(adap->msix_info[1].vec, &s->fw_evtq); | |
1036 | for_each_ethrxq(s, i) | |
1037 | free_irq(adap->msix_info[msi_index++].vec, &s->ethrxq[i].rspq); | |
1038 | for_each_ofldrxq(s, i) | |
1039 | free_irq(adap->msix_info[msi_index++].vec, &s->ofldrxq[i].rspq); | |
1040 | for_each_rdmarxq(s, i) | |
1041 | free_irq(adap->msix_info[msi_index++].vec, &s->rdmarxq[i].rspq); | |
1042 | for_each_rdmaciq(s, i) | |
1043 | free_irq(adap->msix_info[msi_index++].vec, &s->rdmaciq[i].rspq); | |
1044 | } | |
1045 | ||
1046 | /** | |
1047 | * write_rss - write the RSS table for a given port | |
1048 | * @pi: the port | |
1049 | * @queues: array of queue indices for RSS | |
1050 | * | |
1051 | * Sets up the portion of the HW RSS table for the port's VI to distribute | |
1052 | * packets to the Rx queues in @queues. | |
1053 | */ | |
1054 | static int write_rss(const struct port_info *pi, const u16 *queues) | |
1055 | { | |
1056 | u16 *rss; | |
1057 | int i, err; | |
1058 | const struct sge_eth_rxq *q = &pi->adapter->sge.ethrxq[pi->first_qset]; | |
1059 | ||
1060 | rss = kmalloc(pi->rss_size * sizeof(u16), GFP_KERNEL); | |
1061 | if (!rss) | |
1062 | return -ENOMEM; | |
1063 | ||
1064 | /* map the queue indices to queue ids */ | |
1065 | for (i = 0; i < pi->rss_size; i++, queues++) | |
1066 | rss[i] = q[*queues].rspq.abs_id; | |
1067 | ||
1068 | err = t4_config_rss_range(pi->adapter, pi->adapter->fn, pi->viid, 0, | |
1069 | pi->rss_size, rss, pi->rss_size); | |
1070 | kfree(rss); | |
1071 | return err; | |
1072 | } | |
1073 | ||
1074 | /** | |
1075 | * setup_rss - configure RSS | |
1076 | * @adap: the adapter | |
1077 | * | |
1078 | * Sets up RSS for each port. | |
1079 | */ | |
1080 | static int setup_rss(struct adapter *adap) | |
1081 | { | |
1082 | int i, err; | |
1083 | ||
1084 | for_each_port(adap, i) { | |
1085 | const struct port_info *pi = adap2pinfo(adap, i); | |
1086 | ||
1087 | err = write_rss(pi, pi->rss); | |
1088 | if (err) | |
1089 | return err; | |
1090 | } | |
1091 | return 0; | |
1092 | } | |
1093 | ||
1094 | /* | |
1095 | * Return the channel of the ingress queue with the given qid. | |
1096 | */ | |
1097 | static unsigned int rxq_to_chan(const struct sge *p, unsigned int qid) | |
1098 | { | |
1099 | qid -= p->ingr_start; | |
1100 | return netdev2pinfo(p->ingr_map[qid]->netdev)->tx_chan; | |
1101 | } | |
1102 | ||
1103 | /* | |
1104 | * Wait until all NAPI handlers are descheduled. | |
1105 | */ | |
1106 | static void quiesce_rx(struct adapter *adap) | |
1107 | { | |
1108 | int i; | |
1109 | ||
1110 | for (i = 0; i < ARRAY_SIZE(adap->sge.ingr_map); i++) { | |
1111 | struct sge_rspq *q = adap->sge.ingr_map[i]; | |
1112 | ||
1113 | if (q && q->handler) | |
1114 | napi_disable(&q->napi); | |
1115 | } | |
1116 | } | |
1117 | ||
1118 | /* | |
1119 | * Enable NAPI scheduling and interrupt generation for all Rx queues. | |
1120 | */ | |
1121 | static void enable_rx(struct adapter *adap) | |
1122 | { | |
1123 | int i; | |
1124 | ||
1125 | for (i = 0; i < ARRAY_SIZE(adap->sge.ingr_map); i++) { | |
1126 | struct sge_rspq *q = adap->sge.ingr_map[i]; | |
1127 | ||
1128 | if (!q) | |
1129 | continue; | |
1130 | if (q->handler) | |
1131 | napi_enable(&q->napi); | |
1132 | /* 0-increment GTS to start the timer and enable interrupts */ | |
1133 | t4_write_reg(adap, MYPF_REG(SGE_PF_GTS), | |
1134 | SEINTARM(q->intr_params) | | |
1135 | INGRESSQID(q->cntxt_id)); | |
1136 | } | |
1137 | } | |
1138 | ||
1139 | /** | |
1140 | * setup_sge_queues - configure SGE Tx/Rx/response queues | |
1141 | * @adap: the adapter | |
1142 | * | |
1143 | * Determines how many sets of SGE queues to use and initializes them. | |
1144 | * We support multiple queue sets per port if we have MSI-X, otherwise | |
1145 | * just one queue set per port. | |
1146 | */ | |
1147 | static int setup_sge_queues(struct adapter *adap) | |
1148 | { | |
1149 | int err, msi_idx, i, j; | |
1150 | struct sge *s = &adap->sge; | |
1151 | ||
1152 | bitmap_zero(s->starving_fl, MAX_EGRQ); | |
1153 | bitmap_zero(s->txq_maperr, MAX_EGRQ); | |
1154 | ||
1155 | if (adap->flags & USING_MSIX) | |
1156 | msi_idx = 1; /* vector 0 is for non-queue interrupts */ | |
1157 | else { | |
1158 | err = t4_sge_alloc_rxq(adap, &s->intrq, false, adap->port[0], 0, | |
1159 | NULL, NULL); | |
1160 | if (err) | |
1161 | return err; | |
1162 | msi_idx = -((int)s->intrq.abs_id + 1); | |
1163 | } | |
1164 | ||
1165 | err = t4_sge_alloc_rxq(adap, &s->fw_evtq, true, adap->port[0], | |
1166 | msi_idx, NULL, fwevtq_handler); | |
1167 | if (err) { | |
1168 | freeout: t4_free_sge_resources(adap); | |
1169 | return err; | |
1170 | } | |
1171 | ||
1172 | for_each_port(adap, i) { | |
1173 | struct net_device *dev = adap->port[i]; | |
1174 | struct port_info *pi = netdev_priv(dev); | |
1175 | struct sge_eth_rxq *q = &s->ethrxq[pi->first_qset]; | |
1176 | struct sge_eth_txq *t = &s->ethtxq[pi->first_qset]; | |
1177 | ||
1178 | for (j = 0; j < pi->nqsets; j++, q++) { | |
1179 | if (msi_idx > 0) | |
1180 | msi_idx++; | |
1181 | err = t4_sge_alloc_rxq(adap, &q->rspq, false, dev, | |
1182 | msi_idx, &q->fl, | |
1183 | t4_ethrx_handler); | |
1184 | if (err) | |
1185 | goto freeout; | |
1186 | q->rspq.idx = j; | |
1187 | memset(&q->stats, 0, sizeof(q->stats)); | |
1188 | } | |
1189 | for (j = 0; j < pi->nqsets; j++, t++) { | |
1190 | err = t4_sge_alloc_eth_txq(adap, t, dev, | |
1191 | netdev_get_tx_queue(dev, j), | |
1192 | s->fw_evtq.cntxt_id); | |
1193 | if (err) | |
1194 | goto freeout; | |
1195 | } | |
1196 | } | |
1197 | ||
1198 | j = s->ofldqsets / adap->params.nports; /* ofld queues per channel */ | |
1199 | for_each_ofldrxq(s, i) { | |
1200 | struct sge_ofld_rxq *q = &s->ofldrxq[i]; | |
1201 | struct net_device *dev = adap->port[i / j]; | |
1202 | ||
1203 | if (msi_idx > 0) | |
1204 | msi_idx++; | |
1205 | err = t4_sge_alloc_rxq(adap, &q->rspq, false, dev, msi_idx, | |
1206 | q->fl.size ? &q->fl : NULL, | |
1207 | uldrx_handler); | |
1208 | if (err) | |
1209 | goto freeout; | |
1210 | memset(&q->stats, 0, sizeof(q->stats)); | |
1211 | s->ofld_rxq[i] = q->rspq.abs_id; | |
1212 | err = t4_sge_alloc_ofld_txq(adap, &s->ofldtxq[i], dev, | |
1213 | s->fw_evtq.cntxt_id); | |
1214 | if (err) | |
1215 | goto freeout; | |
1216 | } | |
1217 | ||
1218 | for_each_rdmarxq(s, i) { | |
1219 | struct sge_ofld_rxq *q = &s->rdmarxq[i]; | |
1220 | ||
1221 | if (msi_idx > 0) | |
1222 | msi_idx++; | |
1223 | err = t4_sge_alloc_rxq(adap, &q->rspq, false, adap->port[i], | |
1224 | msi_idx, q->fl.size ? &q->fl : NULL, | |
1225 | uldrx_handler); | |
1226 | if (err) | |
1227 | goto freeout; | |
1228 | memset(&q->stats, 0, sizeof(q->stats)); | |
1229 | s->rdma_rxq[i] = q->rspq.abs_id; | |
1230 | } | |
1231 | ||
1232 | for_each_rdmaciq(s, i) { | |
1233 | struct sge_ofld_rxq *q = &s->rdmaciq[i]; | |
1234 | ||
1235 | if (msi_idx > 0) | |
1236 | msi_idx++; | |
1237 | err = t4_sge_alloc_rxq(adap, &q->rspq, false, adap->port[i], | |
1238 | msi_idx, q->fl.size ? &q->fl : NULL, | |
1239 | uldrx_handler); | |
1240 | if (err) | |
1241 | goto freeout; | |
1242 | memset(&q->stats, 0, sizeof(q->stats)); | |
1243 | s->rdma_ciq[i] = q->rspq.abs_id; | |
1244 | } | |
1245 | ||
1246 | for_each_port(adap, i) { | |
1247 | /* | |
1248 | * Note that ->rdmarxq[i].rspq.cntxt_id below is 0 if we don't | |
1249 | * have RDMA queues, and that's the right value. | |
1250 | */ | |
1251 | err = t4_sge_alloc_ctrl_txq(adap, &s->ctrlq[i], adap->port[i], | |
1252 | s->fw_evtq.cntxt_id, | |
1253 | s->rdmarxq[i].rspq.cntxt_id); | |
1254 | if (err) | |
1255 | goto freeout; | |
1256 | } | |
1257 | ||
1258 | t4_write_reg(adap, MPS_TRC_RSS_CONTROL, | |
1259 | RSSCONTROL(netdev2pinfo(adap->port[0])->tx_chan) | | |
1260 | QUEUENUMBER(s->ethrxq[0].rspq.abs_id)); | |
1261 | return 0; | |
1262 | } | |
1263 | ||
1264 | /* | |
1265 | * Allocate a chunk of memory using kmalloc or, if that fails, vmalloc. | |
1266 | * The allocated memory is cleared. | |
1267 | */ | |
1268 | void *t4_alloc_mem(size_t size) | |
1269 | { | |
1270 | void *p = kzalloc(size, GFP_KERNEL | __GFP_NOWARN); | |
1271 | ||
1272 | if (!p) | |
1273 | p = vzalloc(size); | |
1274 | return p; | |
1275 | } | |
1276 | ||
1277 | /* | |
1278 | * Free memory allocated through alloc_mem(). | |
1279 | */ | |
1280 | static void t4_free_mem(void *addr) | |
1281 | { | |
1282 | if (is_vmalloc_addr(addr)) | |
1283 | vfree(addr); | |
1284 | else | |
1285 | kfree(addr); | |
1286 | } | |
1287 | ||
1288 | /* Send a Work Request to write the filter at a specified index. We construct | |
1289 | * a Firmware Filter Work Request to have the work done and put the indicated | |
1290 | * filter into "pending" mode which will prevent any further actions against | |
1291 | * it till we get a reply from the firmware on the completion status of the | |
1292 | * request. | |
1293 | */ | |
1294 | static int set_filter_wr(struct adapter *adapter, int fidx) | |
1295 | { | |
1296 | struct filter_entry *f = &adapter->tids.ftid_tab[fidx]; | |
1297 | struct sk_buff *skb; | |
1298 | struct fw_filter_wr *fwr; | |
1299 | unsigned int ftid; | |
1300 | ||
1301 | /* If the new filter requires loopback Destination MAC and/or VLAN | |
1302 | * rewriting then we need to allocate a Layer 2 Table (L2T) entry for | |
1303 | * the filter. | |
1304 | */ | |
1305 | if (f->fs.newdmac || f->fs.newvlan) { | |
1306 | /* allocate L2T entry for new filter */ | |
1307 | f->l2t = t4_l2t_alloc_switching(adapter->l2t); | |
1308 | if (f->l2t == NULL) | |
1309 | return -EAGAIN; | |
1310 | if (t4_l2t_set_switching(adapter, f->l2t, f->fs.vlan, | |
1311 | f->fs.eport, f->fs.dmac)) { | |
1312 | cxgb4_l2t_release(f->l2t); | |
1313 | f->l2t = NULL; | |
1314 | return -ENOMEM; | |
1315 | } | |
1316 | } | |
1317 | ||
1318 | ftid = adapter->tids.ftid_base + fidx; | |
1319 | ||
1320 | skb = alloc_skb(sizeof(*fwr), GFP_KERNEL | __GFP_NOFAIL); | |
1321 | fwr = (struct fw_filter_wr *)__skb_put(skb, sizeof(*fwr)); | |
1322 | memset(fwr, 0, sizeof(*fwr)); | |
1323 | ||
1324 | /* It would be nice to put most of the following in t4_hw.c but most | |
1325 | * of the work is translating the cxgbtool ch_filter_specification | |
1326 | * into the Work Request and the definition of that structure is | |
1327 | * currently in cxgbtool.h which isn't appropriate to pull into the | |
1328 | * common code. We may eventually try to come up with a more neutral | |
1329 | * filter specification structure but for now it's easiest to simply | |
1330 | * put this fairly direct code in line ... | |
1331 | */ | |
1332 | fwr->op_pkd = htonl(FW_WR_OP(FW_FILTER_WR)); | |
1333 | fwr->len16_pkd = htonl(FW_WR_LEN16(sizeof(*fwr)/16)); | |
1334 | fwr->tid_to_iq = | |
1335 | htonl(V_FW_FILTER_WR_TID(ftid) | | |
1336 | V_FW_FILTER_WR_RQTYPE(f->fs.type) | | |
1337 | V_FW_FILTER_WR_NOREPLY(0) | | |
1338 | V_FW_FILTER_WR_IQ(f->fs.iq)); | |
1339 | fwr->del_filter_to_l2tix = | |
1340 | htonl(V_FW_FILTER_WR_RPTTID(f->fs.rpttid) | | |
1341 | V_FW_FILTER_WR_DROP(f->fs.action == FILTER_DROP) | | |
1342 | V_FW_FILTER_WR_DIRSTEER(f->fs.dirsteer) | | |
1343 | V_FW_FILTER_WR_MASKHASH(f->fs.maskhash) | | |
1344 | V_FW_FILTER_WR_DIRSTEERHASH(f->fs.dirsteerhash) | | |
1345 | V_FW_FILTER_WR_LPBK(f->fs.action == FILTER_SWITCH) | | |
1346 | V_FW_FILTER_WR_DMAC(f->fs.newdmac) | | |
1347 | V_FW_FILTER_WR_SMAC(f->fs.newsmac) | | |
1348 | V_FW_FILTER_WR_INSVLAN(f->fs.newvlan == VLAN_INSERT || | |
1349 | f->fs.newvlan == VLAN_REWRITE) | | |
1350 | V_FW_FILTER_WR_RMVLAN(f->fs.newvlan == VLAN_REMOVE || | |
1351 | f->fs.newvlan == VLAN_REWRITE) | | |
1352 | V_FW_FILTER_WR_HITCNTS(f->fs.hitcnts) | | |
1353 | V_FW_FILTER_WR_TXCHAN(f->fs.eport) | | |
1354 | V_FW_FILTER_WR_PRIO(f->fs.prio) | | |
1355 | V_FW_FILTER_WR_L2TIX(f->l2t ? f->l2t->idx : 0)); | |
1356 | fwr->ethtype = htons(f->fs.val.ethtype); | |
1357 | fwr->ethtypem = htons(f->fs.mask.ethtype); | |
1358 | fwr->frag_to_ovlan_vldm = | |
1359 | (V_FW_FILTER_WR_FRAG(f->fs.val.frag) | | |
1360 | V_FW_FILTER_WR_FRAGM(f->fs.mask.frag) | | |
1361 | V_FW_FILTER_WR_IVLAN_VLD(f->fs.val.ivlan_vld) | | |
1362 | V_FW_FILTER_WR_OVLAN_VLD(f->fs.val.ovlan_vld) | | |
1363 | V_FW_FILTER_WR_IVLAN_VLDM(f->fs.mask.ivlan_vld) | | |
1364 | V_FW_FILTER_WR_OVLAN_VLDM(f->fs.mask.ovlan_vld)); | |
1365 | fwr->smac_sel = 0; | |
1366 | fwr->rx_chan_rx_rpl_iq = | |
1367 | htons(V_FW_FILTER_WR_RX_CHAN(0) | | |
1368 | V_FW_FILTER_WR_RX_RPL_IQ(adapter->sge.fw_evtq.abs_id)); | |
1369 | fwr->maci_to_matchtypem = | |
1370 | htonl(V_FW_FILTER_WR_MACI(f->fs.val.macidx) | | |
1371 | V_FW_FILTER_WR_MACIM(f->fs.mask.macidx) | | |
1372 | V_FW_FILTER_WR_FCOE(f->fs.val.fcoe) | | |
1373 | V_FW_FILTER_WR_FCOEM(f->fs.mask.fcoe) | | |
1374 | V_FW_FILTER_WR_PORT(f->fs.val.iport) | | |
1375 | V_FW_FILTER_WR_PORTM(f->fs.mask.iport) | | |
1376 | V_FW_FILTER_WR_MATCHTYPE(f->fs.val.matchtype) | | |
1377 | V_FW_FILTER_WR_MATCHTYPEM(f->fs.mask.matchtype)); | |
1378 | fwr->ptcl = f->fs.val.proto; | |
1379 | fwr->ptclm = f->fs.mask.proto; | |
1380 | fwr->ttyp = f->fs.val.tos; | |
1381 | fwr->ttypm = f->fs.mask.tos; | |
1382 | fwr->ivlan = htons(f->fs.val.ivlan); | |
1383 | fwr->ivlanm = htons(f->fs.mask.ivlan); | |
1384 | fwr->ovlan = htons(f->fs.val.ovlan); | |
1385 | fwr->ovlanm = htons(f->fs.mask.ovlan); | |
1386 | memcpy(fwr->lip, f->fs.val.lip, sizeof(fwr->lip)); | |
1387 | memcpy(fwr->lipm, f->fs.mask.lip, sizeof(fwr->lipm)); | |
1388 | memcpy(fwr->fip, f->fs.val.fip, sizeof(fwr->fip)); | |
1389 | memcpy(fwr->fipm, f->fs.mask.fip, sizeof(fwr->fipm)); | |
1390 | fwr->lp = htons(f->fs.val.lport); | |
1391 | fwr->lpm = htons(f->fs.mask.lport); | |
1392 | fwr->fp = htons(f->fs.val.fport); | |
1393 | fwr->fpm = htons(f->fs.mask.fport); | |
1394 | if (f->fs.newsmac) | |
1395 | memcpy(fwr->sma, f->fs.smac, sizeof(fwr->sma)); | |
1396 | ||
1397 | /* Mark the filter as "pending" and ship off the Filter Work Request. | |
1398 | * When we get the Work Request Reply we'll clear the pending status. | |
1399 | */ | |
1400 | f->pending = 1; | |
1401 | set_wr_txq(skb, CPL_PRIORITY_CONTROL, f->fs.val.iport & 0x3); | |
1402 | t4_ofld_send(adapter, skb); | |
1403 | return 0; | |
1404 | } | |
1405 | ||
1406 | /* Delete the filter at a specified index. | |
1407 | */ | |
1408 | static int del_filter_wr(struct adapter *adapter, int fidx) | |
1409 | { | |
1410 | struct filter_entry *f = &adapter->tids.ftid_tab[fidx]; | |
1411 | struct sk_buff *skb; | |
1412 | struct fw_filter_wr *fwr; | |
1413 | unsigned int len, ftid; | |
1414 | ||
1415 | len = sizeof(*fwr); | |
1416 | ftid = adapter->tids.ftid_base + fidx; | |
1417 | ||
1418 | skb = alloc_skb(len, GFP_KERNEL | __GFP_NOFAIL); | |
1419 | fwr = (struct fw_filter_wr *)__skb_put(skb, len); | |
1420 | t4_mk_filtdelwr(ftid, fwr, adapter->sge.fw_evtq.abs_id); | |
1421 | ||
1422 | /* Mark the filter as "pending" and ship off the Filter Work Request. | |
1423 | * When we get the Work Request Reply we'll clear the pending status. | |
1424 | */ | |
1425 | f->pending = 1; | |
1426 | t4_mgmt_tx(adapter, skb); | |
1427 | return 0; | |
1428 | } | |
1429 | ||
1430 | static u16 cxgb_select_queue(struct net_device *dev, struct sk_buff *skb, | |
1431 | void *accel_priv, select_queue_fallback_t fallback) | |
1432 | { | |
1433 | int txq; | |
1434 | ||
1435 | #ifdef CONFIG_CHELSIO_T4_DCB | |
1436 | /* If a Data Center Bridging has been successfully negotiated on this | |
1437 | * link then we'll use the skb's priority to map it to a TX Queue. | |
1438 | * The skb's priority is determined via the VLAN Tag Priority Code | |
1439 | * Point field. | |
1440 | */ | |
1441 | if (cxgb4_dcb_enabled(dev)) { | |
1442 | u16 vlan_tci; | |
1443 | int err; | |
1444 | ||
1445 | err = vlan_get_tag(skb, &vlan_tci); | |
1446 | if (unlikely(err)) { | |
1447 | if (net_ratelimit()) | |
1448 | netdev_warn(dev, | |
1449 | "TX Packet without VLAN Tag on DCB Link\n"); | |
1450 | txq = 0; | |
1451 | } else { | |
1452 | txq = (vlan_tci & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT; | |
1453 | } | |
1454 | return txq; | |
1455 | } | |
1456 | #endif /* CONFIG_CHELSIO_T4_DCB */ | |
1457 | ||
1458 | if (select_queue) { | |
1459 | txq = (skb_rx_queue_recorded(skb) | |
1460 | ? skb_get_rx_queue(skb) | |
1461 | : smp_processor_id()); | |
1462 | ||
1463 | while (unlikely(txq >= dev->real_num_tx_queues)) | |
1464 | txq -= dev->real_num_tx_queues; | |
1465 | ||
1466 | return txq; | |
1467 | } | |
1468 | ||
1469 | return fallback(dev, skb) % dev->real_num_tx_queues; | |
1470 | } | |
1471 | ||
1472 | static inline int is_offload(const struct adapter *adap) | |
1473 | { | |
1474 | return adap->params.offload; | |
1475 | } | |
1476 | ||
1477 | /* | |
1478 | * Implementation of ethtool operations. | |
1479 | */ | |
1480 | ||
1481 | static u32 get_msglevel(struct net_device *dev) | |
1482 | { | |
1483 | return netdev2adap(dev)->msg_enable; | |
1484 | } | |
1485 | ||
1486 | static void set_msglevel(struct net_device *dev, u32 val) | |
1487 | { | |
1488 | netdev2adap(dev)->msg_enable = val; | |
1489 | } | |
1490 | ||
1491 | static char stats_strings[][ETH_GSTRING_LEN] = { | |
1492 | "TxOctetsOK ", | |
1493 | "TxFramesOK ", | |
1494 | "TxBroadcastFrames ", | |
1495 | "TxMulticastFrames ", | |
1496 | "TxUnicastFrames ", | |
1497 | "TxErrorFrames ", | |
1498 | ||
1499 | "TxFrames64 ", | |
1500 | "TxFrames65To127 ", | |
1501 | "TxFrames128To255 ", | |
1502 | "TxFrames256To511 ", | |
1503 | "TxFrames512To1023 ", | |
1504 | "TxFrames1024To1518 ", | |
1505 | "TxFrames1519ToMax ", | |
1506 | ||
1507 | "TxFramesDropped ", | |
1508 | "TxPauseFrames ", | |
1509 | "TxPPP0Frames ", | |
1510 | "TxPPP1Frames ", | |
1511 | "TxPPP2Frames ", | |
1512 | "TxPPP3Frames ", | |
1513 | "TxPPP4Frames ", | |
1514 | "TxPPP5Frames ", | |
1515 | "TxPPP6Frames ", | |
1516 | "TxPPP7Frames ", | |
1517 | ||
1518 | "RxOctetsOK ", | |
1519 | "RxFramesOK ", | |
1520 | "RxBroadcastFrames ", | |
1521 | "RxMulticastFrames ", | |
1522 | "RxUnicastFrames ", | |
1523 | ||
1524 | "RxFramesTooLong ", | |
1525 | "RxJabberErrors ", | |
1526 | "RxFCSErrors ", | |
1527 | "RxLengthErrors ", | |
1528 | "RxSymbolErrors ", | |
1529 | "RxRuntFrames ", | |
1530 | ||
1531 | "RxFrames64 ", | |
1532 | "RxFrames65To127 ", | |
1533 | "RxFrames128To255 ", | |
1534 | "RxFrames256To511 ", | |
1535 | "RxFrames512To1023 ", | |
1536 | "RxFrames1024To1518 ", | |
1537 | "RxFrames1519ToMax ", | |
1538 | ||
1539 | "RxPauseFrames ", | |
1540 | "RxPPP0Frames ", | |
1541 | "RxPPP1Frames ", | |
1542 | "RxPPP2Frames ", | |
1543 | "RxPPP3Frames ", | |
1544 | "RxPPP4Frames ", | |
1545 | "RxPPP5Frames ", | |
1546 | "RxPPP6Frames ", | |
1547 | "RxPPP7Frames ", | |
1548 | ||
1549 | "RxBG0FramesDropped ", | |
1550 | "RxBG1FramesDropped ", | |
1551 | "RxBG2FramesDropped ", | |
1552 | "RxBG3FramesDropped ", | |
1553 | "RxBG0FramesTrunc ", | |
1554 | "RxBG1FramesTrunc ", | |
1555 | "RxBG2FramesTrunc ", | |
1556 | "RxBG3FramesTrunc ", | |
1557 | ||
1558 | "TSO ", | |
1559 | "TxCsumOffload ", | |
1560 | "RxCsumGood ", | |
1561 | "VLANextractions ", | |
1562 | "VLANinsertions ", | |
1563 | "GROpackets ", | |
1564 | "GROmerged ", | |
1565 | "WriteCoalSuccess ", | |
1566 | "WriteCoalFail ", | |
1567 | }; | |
1568 | ||
1569 | static int get_sset_count(struct net_device *dev, int sset) | |
1570 | { | |
1571 | switch (sset) { | |
1572 | case ETH_SS_STATS: | |
1573 | return ARRAY_SIZE(stats_strings); | |
1574 | default: | |
1575 | return -EOPNOTSUPP; | |
1576 | } | |
1577 | } | |
1578 | ||
1579 | #define T4_REGMAP_SIZE (160 * 1024) | |
1580 | #define T5_REGMAP_SIZE (332 * 1024) | |
1581 | ||
1582 | static int get_regs_len(struct net_device *dev) | |
1583 | { | |
1584 | struct adapter *adap = netdev2adap(dev); | |
1585 | if (is_t4(adap->params.chip)) | |
1586 | return T4_REGMAP_SIZE; | |
1587 | else | |
1588 | return T5_REGMAP_SIZE; | |
1589 | } | |
1590 | ||
1591 | static int get_eeprom_len(struct net_device *dev) | |
1592 | { | |
1593 | return EEPROMSIZE; | |
1594 | } | |
1595 | ||
1596 | static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) | |
1597 | { | |
1598 | struct adapter *adapter = netdev2adap(dev); | |
1599 | ||
1600 | strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver)); | |
1601 | strlcpy(info->version, DRV_VERSION, sizeof(info->version)); | |
1602 | strlcpy(info->bus_info, pci_name(adapter->pdev), | |
1603 | sizeof(info->bus_info)); | |
1604 | ||
1605 | if (adapter->params.fw_vers) | |
1606 | snprintf(info->fw_version, sizeof(info->fw_version), | |
1607 | "%u.%u.%u.%u, TP %u.%u.%u.%u", | |
1608 | FW_HDR_FW_VER_MAJOR_GET(adapter->params.fw_vers), | |
1609 | FW_HDR_FW_VER_MINOR_GET(adapter->params.fw_vers), | |
1610 | FW_HDR_FW_VER_MICRO_GET(adapter->params.fw_vers), | |
1611 | FW_HDR_FW_VER_BUILD_GET(adapter->params.fw_vers), | |
1612 | FW_HDR_FW_VER_MAJOR_GET(adapter->params.tp_vers), | |
1613 | FW_HDR_FW_VER_MINOR_GET(adapter->params.tp_vers), | |
1614 | FW_HDR_FW_VER_MICRO_GET(adapter->params.tp_vers), | |
1615 | FW_HDR_FW_VER_BUILD_GET(adapter->params.tp_vers)); | |
1616 | } | |
1617 | ||
1618 | static void get_strings(struct net_device *dev, u32 stringset, u8 *data) | |
1619 | { | |
1620 | if (stringset == ETH_SS_STATS) | |
1621 | memcpy(data, stats_strings, sizeof(stats_strings)); | |
1622 | } | |
1623 | ||
1624 | /* | |
1625 | * port stats maintained per queue of the port. They should be in the same | |
1626 | * order as in stats_strings above. | |
1627 | */ | |
1628 | struct queue_port_stats { | |
1629 | u64 tso; | |
1630 | u64 tx_csum; | |
1631 | u64 rx_csum; | |
1632 | u64 vlan_ex; | |
1633 | u64 vlan_ins; | |
1634 | u64 gro_pkts; | |
1635 | u64 gro_merged; | |
1636 | }; | |
1637 | ||
1638 | static void collect_sge_port_stats(const struct adapter *adap, | |
1639 | const struct port_info *p, struct queue_port_stats *s) | |
1640 | { | |
1641 | int i; | |
1642 | const struct sge_eth_txq *tx = &adap->sge.ethtxq[p->first_qset]; | |
1643 | const struct sge_eth_rxq *rx = &adap->sge.ethrxq[p->first_qset]; | |
1644 | ||
1645 | memset(s, 0, sizeof(*s)); | |
1646 | for (i = 0; i < p->nqsets; i++, rx++, tx++) { | |
1647 | s->tso += tx->tso; | |
1648 | s->tx_csum += tx->tx_cso; | |
1649 | s->rx_csum += rx->stats.rx_cso; | |
1650 | s->vlan_ex += rx->stats.vlan_ex; | |
1651 | s->vlan_ins += tx->vlan_ins; | |
1652 | s->gro_pkts += rx->stats.lro_pkts; | |
1653 | s->gro_merged += rx->stats.lro_merged; | |
1654 | } | |
1655 | } | |
1656 | ||
1657 | static void get_stats(struct net_device *dev, struct ethtool_stats *stats, | |
1658 | u64 *data) | |
1659 | { | |
1660 | struct port_info *pi = netdev_priv(dev); | |
1661 | struct adapter *adapter = pi->adapter; | |
1662 | u32 val1, val2; | |
1663 | ||
1664 | t4_get_port_stats(adapter, pi->tx_chan, (struct port_stats *)data); | |
1665 | ||
1666 | data += sizeof(struct port_stats) / sizeof(u64); | |
1667 | collect_sge_port_stats(adapter, pi, (struct queue_port_stats *)data); | |
1668 | data += sizeof(struct queue_port_stats) / sizeof(u64); | |
1669 | if (!is_t4(adapter->params.chip)) { | |
1670 | t4_write_reg(adapter, SGE_STAT_CFG, STATSOURCE_T5(7)); | |
1671 | val1 = t4_read_reg(adapter, SGE_STAT_TOTAL); | |
1672 | val2 = t4_read_reg(adapter, SGE_STAT_MATCH); | |
1673 | *data = val1 - val2; | |
1674 | data++; | |
1675 | *data = val2; | |
1676 | data++; | |
1677 | } else { | |
1678 | memset(data, 0, 2 * sizeof(u64)); | |
1679 | *data += 2; | |
1680 | } | |
1681 | } | |
1682 | ||
1683 | /* | |
1684 | * Return a version number to identify the type of adapter. The scheme is: | |
1685 | * - bits 0..9: chip version | |
1686 | * - bits 10..15: chip revision | |
1687 | * - bits 16..23: register dump version | |
1688 | */ | |
1689 | static inline unsigned int mk_adap_vers(const struct adapter *ap) | |
1690 | { | |
1691 | return CHELSIO_CHIP_VERSION(ap->params.chip) | | |
1692 | (CHELSIO_CHIP_RELEASE(ap->params.chip) << 10) | (1 << 16); | |
1693 | } | |
1694 | ||
1695 | static void reg_block_dump(struct adapter *ap, void *buf, unsigned int start, | |
1696 | unsigned int end) | |
1697 | { | |
1698 | u32 *p = buf + start; | |
1699 | ||
1700 | for ( ; start <= end; start += sizeof(u32)) | |
1701 | *p++ = t4_read_reg(ap, start); | |
1702 | } | |
1703 | ||
1704 | static void get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
1705 | void *buf) | |
1706 | { | |
1707 | static const unsigned int t4_reg_ranges[] = { | |
1708 | 0x1008, 0x1108, | |
1709 | 0x1180, 0x11b4, | |
1710 | 0x11fc, 0x123c, | |
1711 | 0x1300, 0x173c, | |
1712 | 0x1800, 0x18fc, | |
1713 | 0x3000, 0x30d8, | |
1714 | 0x30e0, 0x5924, | |
1715 | 0x5960, 0x59d4, | |
1716 | 0x5a00, 0x5af8, | |
1717 | 0x6000, 0x6098, | |
1718 | 0x6100, 0x6150, | |
1719 | 0x6200, 0x6208, | |
1720 | 0x6240, 0x6248, | |
1721 | 0x6280, 0x6338, | |
1722 | 0x6370, 0x638c, | |
1723 | 0x6400, 0x643c, | |
1724 | 0x6500, 0x6524, | |
1725 | 0x6a00, 0x6a38, | |
1726 | 0x6a60, 0x6a78, | |
1727 | 0x6b00, 0x6b84, | |
1728 | 0x6bf0, 0x6c84, | |
1729 | 0x6cf0, 0x6d84, | |
1730 | 0x6df0, 0x6e84, | |
1731 | 0x6ef0, 0x6f84, | |
1732 | 0x6ff0, 0x7084, | |
1733 | 0x70f0, 0x7184, | |
1734 | 0x71f0, 0x7284, | |
1735 | 0x72f0, 0x7384, | |
1736 | 0x73f0, 0x7450, | |
1737 | 0x7500, 0x7530, | |
1738 | 0x7600, 0x761c, | |
1739 | 0x7680, 0x76cc, | |
1740 | 0x7700, 0x7798, | |
1741 | 0x77c0, 0x77fc, | |
1742 | 0x7900, 0x79fc, | |
1743 | 0x7b00, 0x7c38, | |
1744 | 0x7d00, 0x7efc, | |
1745 | 0x8dc0, 0x8e1c, | |
1746 | 0x8e30, 0x8e78, | |
1747 | 0x8ea0, 0x8f6c, | |
1748 | 0x8fc0, 0x9074, | |
1749 | 0x90fc, 0x90fc, | |
1750 | 0x9400, 0x9458, | |
1751 | 0x9600, 0x96bc, | |
1752 | 0x9800, 0x9808, | |
1753 | 0x9820, 0x983c, | |
1754 | 0x9850, 0x9864, | |
1755 | 0x9c00, 0x9c6c, | |
1756 | 0x9c80, 0x9cec, | |
1757 | 0x9d00, 0x9d6c, | |
1758 | 0x9d80, 0x9dec, | |
1759 | 0x9e00, 0x9e6c, | |
1760 | 0x9e80, 0x9eec, | |
1761 | 0x9f00, 0x9f6c, | |
1762 | 0x9f80, 0x9fec, | |
1763 | 0xd004, 0xd03c, | |
1764 | 0xdfc0, 0xdfe0, | |
1765 | 0xe000, 0xea7c, | |
1766 | 0xf000, 0x11190, | |
1767 | 0x19040, 0x1906c, | |
1768 | 0x19078, 0x19080, | |
1769 | 0x1908c, 0x19124, | |
1770 | 0x19150, 0x191b0, | |
1771 | 0x191d0, 0x191e8, | |
1772 | 0x19238, 0x1924c, | |
1773 | 0x193f8, 0x19474, | |
1774 | 0x19490, 0x194f8, | |
1775 | 0x19800, 0x19f30, | |
1776 | 0x1a000, 0x1a06c, | |
1777 | 0x1a0b0, 0x1a120, | |
1778 | 0x1a128, 0x1a138, | |
1779 | 0x1a190, 0x1a1c4, | |
1780 | 0x1a1fc, 0x1a1fc, | |
1781 | 0x1e040, 0x1e04c, | |
1782 | 0x1e284, 0x1e28c, | |
1783 | 0x1e2c0, 0x1e2c0, | |
1784 | 0x1e2e0, 0x1e2e0, | |
1785 | 0x1e300, 0x1e384, | |
1786 | 0x1e3c0, 0x1e3c8, | |
1787 | 0x1e440, 0x1e44c, | |
1788 | 0x1e684, 0x1e68c, | |
1789 | 0x1e6c0, 0x1e6c0, | |
1790 | 0x1e6e0, 0x1e6e0, | |
1791 | 0x1e700, 0x1e784, | |
1792 | 0x1e7c0, 0x1e7c8, | |
1793 | 0x1e840, 0x1e84c, | |
1794 | 0x1ea84, 0x1ea8c, | |
1795 | 0x1eac0, 0x1eac0, | |
1796 | 0x1eae0, 0x1eae0, | |
1797 | 0x1eb00, 0x1eb84, | |
1798 | 0x1ebc0, 0x1ebc8, | |
1799 | 0x1ec40, 0x1ec4c, | |
1800 | 0x1ee84, 0x1ee8c, | |
1801 | 0x1eec0, 0x1eec0, | |
1802 | 0x1eee0, 0x1eee0, | |
1803 | 0x1ef00, 0x1ef84, | |
1804 | 0x1efc0, 0x1efc8, | |
1805 | 0x1f040, 0x1f04c, | |
1806 | 0x1f284, 0x1f28c, | |
1807 | 0x1f2c0, 0x1f2c0, | |
1808 | 0x1f2e0, 0x1f2e0, | |
1809 | 0x1f300, 0x1f384, | |
1810 | 0x1f3c0, 0x1f3c8, | |
1811 | 0x1f440, 0x1f44c, | |
1812 | 0x1f684, 0x1f68c, | |
1813 | 0x1f6c0, 0x1f6c0, | |
1814 | 0x1f6e0, 0x1f6e0, | |
1815 | 0x1f700, 0x1f784, | |
1816 | 0x1f7c0, 0x1f7c8, | |
1817 | 0x1f840, 0x1f84c, | |
1818 | 0x1fa84, 0x1fa8c, | |
1819 | 0x1fac0, 0x1fac0, | |
1820 | 0x1fae0, 0x1fae0, | |
1821 | 0x1fb00, 0x1fb84, | |
1822 | 0x1fbc0, 0x1fbc8, | |
1823 | 0x1fc40, 0x1fc4c, | |
1824 | 0x1fe84, 0x1fe8c, | |
1825 | 0x1fec0, 0x1fec0, | |
1826 | 0x1fee0, 0x1fee0, | |
1827 | 0x1ff00, 0x1ff84, | |
1828 | 0x1ffc0, 0x1ffc8, | |
1829 | 0x20000, 0x2002c, | |
1830 | 0x20100, 0x2013c, | |
1831 | 0x20190, 0x201c8, | |
1832 | 0x20200, 0x20318, | |
1833 | 0x20400, 0x20528, | |
1834 | 0x20540, 0x20614, | |
1835 | 0x21000, 0x21040, | |
1836 | 0x2104c, 0x21060, | |
1837 | 0x210c0, 0x210ec, | |
1838 | 0x21200, 0x21268, | |
1839 | 0x21270, 0x21284, | |
1840 | 0x212fc, 0x21388, | |
1841 | 0x21400, 0x21404, | |
1842 | 0x21500, 0x21518, | |
1843 | 0x2152c, 0x2153c, | |
1844 | 0x21550, 0x21554, | |
1845 | 0x21600, 0x21600, | |
1846 | 0x21608, 0x21628, | |
1847 | 0x21630, 0x2163c, | |
1848 | 0x21700, 0x2171c, | |
1849 | 0x21780, 0x2178c, | |
1850 | 0x21800, 0x21c38, | |
1851 | 0x21c80, 0x21d7c, | |
1852 | 0x21e00, 0x21e04, | |
1853 | 0x22000, 0x2202c, | |
1854 | 0x22100, 0x2213c, | |
1855 | 0x22190, 0x221c8, | |
1856 | 0x22200, 0x22318, | |
1857 | 0x22400, 0x22528, | |
1858 | 0x22540, 0x22614, | |
1859 | 0x23000, 0x23040, | |
1860 | 0x2304c, 0x23060, | |
1861 | 0x230c0, 0x230ec, | |
1862 | 0x23200, 0x23268, | |
1863 | 0x23270, 0x23284, | |
1864 | 0x232fc, 0x23388, | |
1865 | 0x23400, 0x23404, | |
1866 | 0x23500, 0x23518, | |
1867 | 0x2352c, 0x2353c, | |
1868 | 0x23550, 0x23554, | |
1869 | 0x23600, 0x23600, | |
1870 | 0x23608, 0x23628, | |
1871 | 0x23630, 0x2363c, | |
1872 | 0x23700, 0x2371c, | |
1873 | 0x23780, 0x2378c, | |
1874 | 0x23800, 0x23c38, | |
1875 | 0x23c80, 0x23d7c, | |
1876 | 0x23e00, 0x23e04, | |
1877 | 0x24000, 0x2402c, | |
1878 | 0x24100, 0x2413c, | |
1879 | 0x24190, 0x241c8, | |
1880 | 0x24200, 0x24318, | |
1881 | 0x24400, 0x24528, | |
1882 | 0x24540, 0x24614, | |
1883 | 0x25000, 0x25040, | |
1884 | 0x2504c, 0x25060, | |
1885 | 0x250c0, 0x250ec, | |
1886 | 0x25200, 0x25268, | |
1887 | 0x25270, 0x25284, | |
1888 | 0x252fc, 0x25388, | |
1889 | 0x25400, 0x25404, | |
1890 | 0x25500, 0x25518, | |
1891 | 0x2552c, 0x2553c, | |
1892 | 0x25550, 0x25554, | |
1893 | 0x25600, 0x25600, | |
1894 | 0x25608, 0x25628, | |
1895 | 0x25630, 0x2563c, | |
1896 | 0x25700, 0x2571c, | |
1897 | 0x25780, 0x2578c, | |
1898 | 0x25800, 0x25c38, | |
1899 | 0x25c80, 0x25d7c, | |
1900 | 0x25e00, 0x25e04, | |
1901 | 0x26000, 0x2602c, | |
1902 | 0x26100, 0x2613c, | |
1903 | 0x26190, 0x261c8, | |
1904 | 0x26200, 0x26318, | |
1905 | 0x26400, 0x26528, | |
1906 | 0x26540, 0x26614, | |
1907 | 0x27000, 0x27040, | |
1908 | 0x2704c, 0x27060, | |
1909 | 0x270c0, 0x270ec, | |
1910 | 0x27200, 0x27268, | |
1911 | 0x27270, 0x27284, | |
1912 | 0x272fc, 0x27388, | |
1913 | 0x27400, 0x27404, | |
1914 | 0x27500, 0x27518, | |
1915 | 0x2752c, 0x2753c, | |
1916 | 0x27550, 0x27554, | |
1917 | 0x27600, 0x27600, | |
1918 | 0x27608, 0x27628, | |
1919 | 0x27630, 0x2763c, | |
1920 | 0x27700, 0x2771c, | |
1921 | 0x27780, 0x2778c, | |
1922 | 0x27800, 0x27c38, | |
1923 | 0x27c80, 0x27d7c, | |
1924 | 0x27e00, 0x27e04 | |
1925 | }; | |
1926 | ||
1927 | static const unsigned int t5_reg_ranges[] = { | |
1928 | 0x1008, 0x1148, | |
1929 | 0x1180, 0x11b4, | |
1930 | 0x11fc, 0x123c, | |
1931 | 0x1280, 0x173c, | |
1932 | 0x1800, 0x18fc, | |
1933 | 0x3000, 0x3028, | |
1934 | 0x3060, 0x30d8, | |
1935 | 0x30e0, 0x30fc, | |
1936 | 0x3140, 0x357c, | |
1937 | 0x35a8, 0x35cc, | |
1938 | 0x35ec, 0x35ec, | |
1939 | 0x3600, 0x5624, | |
1940 | 0x56cc, 0x575c, | |
1941 | 0x580c, 0x5814, | |
1942 | 0x5890, 0x58bc, | |
1943 | 0x5940, 0x59dc, | |
1944 | 0x59fc, 0x5a18, | |
1945 | 0x5a60, 0x5a9c, | |
1946 | 0x5b9c, 0x5bfc, | |
1947 | 0x6000, 0x6040, | |
1948 | 0x6058, 0x614c, | |
1949 | 0x7700, 0x7798, | |
1950 | 0x77c0, 0x78fc, | |
1951 | 0x7b00, 0x7c54, | |
1952 | 0x7d00, 0x7efc, | |
1953 | 0x8dc0, 0x8de0, | |
1954 | 0x8df8, 0x8e84, | |
1955 | 0x8ea0, 0x8f84, | |
1956 | 0x8fc0, 0x90f8, | |
1957 | 0x9400, 0x9470, | |
1958 | 0x9600, 0x96f4, | |
1959 | 0x9800, 0x9808, | |
1960 | 0x9820, 0x983c, | |
1961 | 0x9850, 0x9864, | |
1962 | 0x9c00, 0x9c6c, | |
1963 | 0x9c80, 0x9cec, | |
1964 | 0x9d00, 0x9d6c, | |
1965 | 0x9d80, 0x9dec, | |
1966 | 0x9e00, 0x9e6c, | |
1967 | 0x9e80, 0x9eec, | |
1968 | 0x9f00, 0x9f6c, | |
1969 | 0x9f80, 0xa020, | |
1970 | 0xd004, 0xd03c, | |
1971 | 0xdfc0, 0xdfe0, | |
1972 | 0xe000, 0x11088, | |
1973 | 0x1109c, 0x1117c, | |
1974 | 0x11190, 0x11204, | |
1975 | 0x19040, 0x1906c, | |
1976 | 0x19078, 0x19080, | |
1977 | 0x1908c, 0x19124, | |
1978 | 0x19150, 0x191b0, | |
1979 | 0x191d0, 0x191e8, | |
1980 | 0x19238, 0x19290, | |
1981 | 0x193f8, 0x19474, | |
1982 | 0x19490, 0x194cc, | |
1983 | 0x194f0, 0x194f8, | |
1984 | 0x19c00, 0x19c60, | |
1985 | 0x19c94, 0x19e10, | |
1986 | 0x19e50, 0x19f34, | |
1987 | 0x19f40, 0x19f50, | |
1988 | 0x19f90, 0x19fe4, | |
1989 | 0x1a000, 0x1a06c, | |
1990 | 0x1a0b0, 0x1a120, | |
1991 | 0x1a128, 0x1a138, | |
1992 | 0x1a190, 0x1a1c4, | |
1993 | 0x1a1fc, 0x1a1fc, | |
1994 | 0x1e008, 0x1e00c, | |
1995 | 0x1e040, 0x1e04c, | |
1996 | 0x1e284, 0x1e290, | |
1997 | 0x1e2c0, 0x1e2c0, | |
1998 | 0x1e2e0, 0x1e2e0, | |
1999 | 0x1e300, 0x1e384, | |
2000 | 0x1e3c0, 0x1e3c8, | |
2001 | 0x1e408, 0x1e40c, | |
2002 | 0x1e440, 0x1e44c, | |
2003 | 0x1e684, 0x1e690, | |
2004 | 0x1e6c0, 0x1e6c0, | |
2005 | 0x1e6e0, 0x1e6e0, | |
2006 | 0x1e700, 0x1e784, | |
2007 | 0x1e7c0, 0x1e7c8, | |
2008 | 0x1e808, 0x1e80c, | |
2009 | 0x1e840, 0x1e84c, | |
2010 | 0x1ea84, 0x1ea90, | |
2011 | 0x1eac0, 0x1eac0, | |
2012 | 0x1eae0, 0x1eae0, | |
2013 | 0x1eb00, 0x1eb84, | |
2014 | 0x1ebc0, 0x1ebc8, | |
2015 | 0x1ec08, 0x1ec0c, | |
2016 | 0x1ec40, 0x1ec4c, | |
2017 | 0x1ee84, 0x1ee90, | |
2018 | 0x1eec0, 0x1eec0, | |
2019 | 0x1eee0, 0x1eee0, | |
2020 | 0x1ef00, 0x1ef84, | |
2021 | 0x1efc0, 0x1efc8, | |
2022 | 0x1f008, 0x1f00c, | |
2023 | 0x1f040, 0x1f04c, | |
2024 | 0x1f284, 0x1f290, | |
2025 | 0x1f2c0, 0x1f2c0, | |
2026 | 0x1f2e0, 0x1f2e0, | |
2027 | 0x1f300, 0x1f384, | |
2028 | 0x1f3c0, 0x1f3c8, | |
2029 | 0x1f408, 0x1f40c, | |
2030 | 0x1f440, 0x1f44c, | |
2031 | 0x1f684, 0x1f690, | |
2032 | 0x1f6c0, 0x1f6c0, | |
2033 | 0x1f6e0, 0x1f6e0, | |
2034 | 0x1f700, 0x1f784, | |
2035 | 0x1f7c0, 0x1f7c8, | |
2036 | 0x1f808, 0x1f80c, | |
2037 | 0x1f840, 0x1f84c, | |
2038 | 0x1fa84, 0x1fa90, | |
2039 | 0x1fac0, 0x1fac0, | |
2040 | 0x1fae0, 0x1fae0, | |
2041 | 0x1fb00, 0x1fb84, | |
2042 | 0x1fbc0, 0x1fbc8, | |
2043 | 0x1fc08, 0x1fc0c, | |
2044 | 0x1fc40, 0x1fc4c, | |
2045 | 0x1fe84, 0x1fe90, | |
2046 | 0x1fec0, 0x1fec0, | |
2047 | 0x1fee0, 0x1fee0, | |
2048 | 0x1ff00, 0x1ff84, | |
2049 | 0x1ffc0, 0x1ffc8, | |
2050 | 0x30000, 0x30030, | |
2051 | 0x30100, 0x30144, | |
2052 | 0x30190, 0x301d0, | |
2053 | 0x30200, 0x30318, | |
2054 | 0x30400, 0x3052c, | |
2055 | 0x30540, 0x3061c, | |
2056 | 0x30800, 0x30834, | |
2057 | 0x308c0, 0x30908, | |
2058 | 0x30910, 0x309ac, | |
2059 | 0x30a00, 0x30a04, | |
2060 | 0x30a0c, 0x30a2c, | |
2061 | 0x30a44, 0x30a50, | |
2062 | 0x30a74, 0x30c24, | |
2063 | 0x30d08, 0x30d14, | |
2064 | 0x30d1c, 0x30d20, | |
2065 | 0x30d3c, 0x30d50, | |
2066 | 0x31200, 0x3120c, | |
2067 | 0x31220, 0x31220, | |
2068 | 0x31240, 0x31240, | |
2069 | 0x31600, 0x31600, | |
2070 | 0x31608, 0x3160c, | |
2071 | 0x31a00, 0x31a1c, | |
2072 | 0x31e04, 0x31e20, | |
2073 | 0x31e38, 0x31e3c, | |
2074 | 0x31e80, 0x31e80, | |
2075 | 0x31e88, 0x31ea8, | |
2076 | 0x31eb0, 0x31eb4, | |
2077 | 0x31ec8, 0x31ed4, | |
2078 | 0x31fb8, 0x32004, | |
2079 | 0x32208, 0x3223c, | |
2080 | 0x32600, 0x32630, | |
2081 | 0x32a00, 0x32abc, | |
2082 | 0x32b00, 0x32b70, | |
2083 | 0x33000, 0x33048, | |
2084 | 0x33060, 0x3309c, | |
2085 | 0x330f0, 0x33148, | |
2086 | 0x33160, 0x3319c, | |
2087 | 0x331f0, 0x332e4, | |
2088 | 0x332f8, 0x333e4, | |
2089 | 0x333f8, 0x33448, | |
2090 | 0x33460, 0x3349c, | |
2091 | 0x334f0, 0x33548, | |
2092 | 0x33560, 0x3359c, | |
2093 | 0x335f0, 0x336e4, | |
2094 | 0x336f8, 0x337e4, | |
2095 | 0x337f8, 0x337fc, | |
2096 | 0x33814, 0x33814, | |
2097 | 0x3382c, 0x3382c, | |
2098 | 0x33880, 0x3388c, | |
2099 | 0x338e8, 0x338ec, | |
2100 | 0x33900, 0x33948, | |
2101 | 0x33960, 0x3399c, | |
2102 | 0x339f0, 0x33ae4, | |
2103 | 0x33af8, 0x33b10, | |
2104 | 0x33b28, 0x33b28, | |
2105 | 0x33b3c, 0x33b50, | |
2106 | 0x33bf0, 0x33c10, | |
2107 | 0x33c28, 0x33c28, | |
2108 | 0x33c3c, 0x33c50, | |
2109 | 0x33cf0, 0x33cfc, | |
2110 | 0x34000, 0x34030, | |
2111 | 0x34100, 0x34144, | |
2112 | 0x34190, 0x341d0, | |
2113 | 0x34200, 0x34318, | |
2114 | 0x34400, 0x3452c, | |
2115 | 0x34540, 0x3461c, | |
2116 | 0x34800, 0x34834, | |
2117 | 0x348c0, 0x34908, | |
2118 | 0x34910, 0x349ac, | |
2119 | 0x34a00, 0x34a04, | |
2120 | 0x34a0c, 0x34a2c, | |
2121 | 0x34a44, 0x34a50, | |
2122 | 0x34a74, 0x34c24, | |
2123 | 0x34d08, 0x34d14, | |
2124 | 0x34d1c, 0x34d20, | |
2125 | 0x34d3c, 0x34d50, | |
2126 | 0x35200, 0x3520c, | |
2127 | 0x35220, 0x35220, | |
2128 | 0x35240, 0x35240, | |
2129 | 0x35600, 0x35600, | |
2130 | 0x35608, 0x3560c, | |
2131 | 0x35a00, 0x35a1c, | |
2132 | 0x35e04, 0x35e20, | |
2133 | 0x35e38, 0x35e3c, | |
2134 | 0x35e80, 0x35e80, | |
2135 | 0x35e88, 0x35ea8, | |
2136 | 0x35eb0, 0x35eb4, | |
2137 | 0x35ec8, 0x35ed4, | |
2138 | 0x35fb8, 0x36004, | |
2139 | 0x36208, 0x3623c, | |
2140 | 0x36600, 0x36630, | |
2141 | 0x36a00, 0x36abc, | |
2142 | 0x36b00, 0x36b70, | |
2143 | 0x37000, 0x37048, | |
2144 | 0x37060, 0x3709c, | |
2145 | 0x370f0, 0x37148, | |
2146 | 0x37160, 0x3719c, | |
2147 | 0x371f0, 0x372e4, | |
2148 | 0x372f8, 0x373e4, | |
2149 | 0x373f8, 0x37448, | |
2150 | 0x37460, 0x3749c, | |
2151 | 0x374f0, 0x37548, | |
2152 | 0x37560, 0x3759c, | |
2153 | 0x375f0, 0x376e4, | |
2154 | 0x376f8, 0x377e4, | |
2155 | 0x377f8, 0x377fc, | |
2156 | 0x37814, 0x37814, | |
2157 | 0x3782c, 0x3782c, | |
2158 | 0x37880, 0x3788c, | |
2159 | 0x378e8, 0x378ec, | |
2160 | 0x37900, 0x37948, | |
2161 | 0x37960, 0x3799c, | |
2162 | 0x379f0, 0x37ae4, | |
2163 | 0x37af8, 0x37b10, | |
2164 | 0x37b28, 0x37b28, | |
2165 | 0x37b3c, 0x37b50, | |
2166 | 0x37bf0, 0x37c10, | |
2167 | 0x37c28, 0x37c28, | |
2168 | 0x37c3c, 0x37c50, | |
2169 | 0x37cf0, 0x37cfc, | |
2170 | 0x38000, 0x38030, | |
2171 | 0x38100, 0x38144, | |
2172 | 0x38190, 0x381d0, | |
2173 | 0x38200, 0x38318, | |
2174 | 0x38400, 0x3852c, | |
2175 | 0x38540, 0x3861c, | |
2176 | 0x38800, 0x38834, | |
2177 | 0x388c0, 0x38908, | |
2178 | 0x38910, 0x389ac, | |
2179 | 0x38a00, 0x38a04, | |
2180 | 0x38a0c, 0x38a2c, | |
2181 | 0x38a44, 0x38a50, | |
2182 | 0x38a74, 0x38c24, | |
2183 | 0x38d08, 0x38d14, | |
2184 | 0x38d1c, 0x38d20, | |
2185 | 0x38d3c, 0x38d50, | |
2186 | 0x39200, 0x3920c, | |
2187 | 0x39220, 0x39220, | |
2188 | 0x39240, 0x39240, | |
2189 | 0x39600, 0x39600, | |
2190 | 0x39608, 0x3960c, | |
2191 | 0x39a00, 0x39a1c, | |
2192 | 0x39e04, 0x39e20, | |
2193 | 0x39e38, 0x39e3c, | |
2194 | 0x39e80, 0x39e80, | |
2195 | 0x39e88, 0x39ea8, | |
2196 | 0x39eb0, 0x39eb4, | |
2197 | 0x39ec8, 0x39ed4, | |
2198 | 0x39fb8, 0x3a004, | |
2199 | 0x3a208, 0x3a23c, | |
2200 | 0x3a600, 0x3a630, | |
2201 | 0x3aa00, 0x3aabc, | |
2202 | 0x3ab00, 0x3ab70, | |
2203 | 0x3b000, 0x3b048, | |
2204 | 0x3b060, 0x3b09c, | |
2205 | 0x3b0f0, 0x3b148, | |
2206 | 0x3b160, 0x3b19c, | |
2207 | 0x3b1f0, 0x3b2e4, | |
2208 | 0x3b2f8, 0x3b3e4, | |
2209 | 0x3b3f8, 0x3b448, | |
2210 | 0x3b460, 0x3b49c, | |
2211 | 0x3b4f0, 0x3b548, | |
2212 | 0x3b560, 0x3b59c, | |
2213 | 0x3b5f0, 0x3b6e4, | |
2214 | 0x3b6f8, 0x3b7e4, | |
2215 | 0x3b7f8, 0x3b7fc, | |
2216 | 0x3b814, 0x3b814, | |
2217 | 0x3b82c, 0x3b82c, | |
2218 | 0x3b880, 0x3b88c, | |
2219 | 0x3b8e8, 0x3b8ec, | |
2220 | 0x3b900, 0x3b948, | |
2221 | 0x3b960, 0x3b99c, | |
2222 | 0x3b9f0, 0x3bae4, | |
2223 | 0x3baf8, 0x3bb10, | |
2224 | 0x3bb28, 0x3bb28, | |
2225 | 0x3bb3c, 0x3bb50, | |
2226 | 0x3bbf0, 0x3bc10, | |
2227 | 0x3bc28, 0x3bc28, | |
2228 | 0x3bc3c, 0x3bc50, | |
2229 | 0x3bcf0, 0x3bcfc, | |
2230 | 0x3c000, 0x3c030, | |
2231 | 0x3c100, 0x3c144, | |
2232 | 0x3c190, 0x3c1d0, | |
2233 | 0x3c200, 0x3c318, | |
2234 | 0x3c400, 0x3c52c, | |
2235 | 0x3c540, 0x3c61c, | |
2236 | 0x3c800, 0x3c834, | |
2237 | 0x3c8c0, 0x3c908, | |
2238 | 0x3c910, 0x3c9ac, | |
2239 | 0x3ca00, 0x3ca04, | |
2240 | 0x3ca0c, 0x3ca2c, | |
2241 | 0x3ca44, 0x3ca50, | |
2242 | 0x3ca74, 0x3cc24, | |
2243 | 0x3cd08, 0x3cd14, | |
2244 | 0x3cd1c, 0x3cd20, | |
2245 | 0x3cd3c, 0x3cd50, | |
2246 | 0x3d200, 0x3d20c, | |
2247 | 0x3d220, 0x3d220, | |
2248 | 0x3d240, 0x3d240, | |
2249 | 0x3d600, 0x3d600, | |
2250 | 0x3d608, 0x3d60c, | |
2251 | 0x3da00, 0x3da1c, | |
2252 | 0x3de04, 0x3de20, | |
2253 | 0x3de38, 0x3de3c, | |
2254 | 0x3de80, 0x3de80, | |
2255 | 0x3de88, 0x3dea8, | |
2256 | 0x3deb0, 0x3deb4, | |
2257 | 0x3dec8, 0x3ded4, | |
2258 | 0x3dfb8, 0x3e004, | |
2259 | 0x3e208, 0x3e23c, | |
2260 | 0x3e600, 0x3e630, | |
2261 | 0x3ea00, 0x3eabc, | |
2262 | 0x3eb00, 0x3eb70, | |
2263 | 0x3f000, 0x3f048, | |
2264 | 0x3f060, 0x3f09c, | |
2265 | 0x3f0f0, 0x3f148, | |
2266 | 0x3f160, 0x3f19c, | |
2267 | 0x3f1f0, 0x3f2e4, | |
2268 | 0x3f2f8, 0x3f3e4, | |
2269 | 0x3f3f8, 0x3f448, | |
2270 | 0x3f460, 0x3f49c, | |
2271 | 0x3f4f0, 0x3f548, | |
2272 | 0x3f560, 0x3f59c, | |
2273 | 0x3f5f0, 0x3f6e4, | |
2274 | 0x3f6f8, 0x3f7e4, | |
2275 | 0x3f7f8, 0x3f7fc, | |
2276 | 0x3f814, 0x3f814, | |
2277 | 0x3f82c, 0x3f82c, | |
2278 | 0x3f880, 0x3f88c, | |
2279 | 0x3f8e8, 0x3f8ec, | |
2280 | 0x3f900, 0x3f948, | |
2281 | 0x3f960, 0x3f99c, | |
2282 | 0x3f9f0, 0x3fae4, | |
2283 | 0x3faf8, 0x3fb10, | |
2284 | 0x3fb28, 0x3fb28, | |
2285 | 0x3fb3c, 0x3fb50, | |
2286 | 0x3fbf0, 0x3fc10, | |
2287 | 0x3fc28, 0x3fc28, | |
2288 | 0x3fc3c, 0x3fc50, | |
2289 | 0x3fcf0, 0x3fcfc, | |
2290 | 0x40000, 0x4000c, | |
2291 | 0x40040, 0x40068, | |
2292 | 0x40080, 0x40144, | |
2293 | 0x40180, 0x4018c, | |
2294 | 0x40200, 0x40298, | |
2295 | 0x402ac, 0x4033c, | |
2296 | 0x403f8, 0x403fc, | |
2297 | 0x41304, 0x413c4, | |
2298 | 0x41400, 0x4141c, | |
2299 | 0x41480, 0x414d0, | |
2300 | 0x44000, 0x44078, | |
2301 | 0x440c0, 0x44278, | |
2302 | 0x442c0, 0x44478, | |
2303 | 0x444c0, 0x44678, | |
2304 | 0x446c0, 0x44878, | |
2305 | 0x448c0, 0x449fc, | |
2306 | 0x45000, 0x45068, | |
2307 | 0x45080, 0x45084, | |
2308 | 0x450a0, 0x450b0, | |
2309 | 0x45200, 0x45268, | |
2310 | 0x45280, 0x45284, | |
2311 | 0x452a0, 0x452b0, | |
2312 | 0x460c0, 0x460e4, | |
2313 | 0x47000, 0x4708c, | |
2314 | 0x47200, 0x47250, | |
2315 | 0x47400, 0x47420, | |
2316 | 0x47600, 0x47618, | |
2317 | 0x47800, 0x47814, | |
2318 | 0x48000, 0x4800c, | |
2319 | 0x48040, 0x48068, | |
2320 | 0x48080, 0x48144, | |
2321 | 0x48180, 0x4818c, | |
2322 | 0x48200, 0x48298, | |
2323 | 0x482ac, 0x4833c, | |
2324 | 0x483f8, 0x483fc, | |
2325 | 0x49304, 0x493c4, | |
2326 | 0x49400, 0x4941c, | |
2327 | 0x49480, 0x494d0, | |
2328 | 0x4c000, 0x4c078, | |
2329 | 0x4c0c0, 0x4c278, | |
2330 | 0x4c2c0, 0x4c478, | |
2331 | 0x4c4c0, 0x4c678, | |
2332 | 0x4c6c0, 0x4c878, | |
2333 | 0x4c8c0, 0x4c9fc, | |
2334 | 0x4d000, 0x4d068, | |
2335 | 0x4d080, 0x4d084, | |
2336 | 0x4d0a0, 0x4d0b0, | |
2337 | 0x4d200, 0x4d268, | |
2338 | 0x4d280, 0x4d284, | |
2339 | 0x4d2a0, 0x4d2b0, | |
2340 | 0x4e0c0, 0x4e0e4, | |
2341 | 0x4f000, 0x4f08c, | |
2342 | 0x4f200, 0x4f250, | |
2343 | 0x4f400, 0x4f420, | |
2344 | 0x4f600, 0x4f618, | |
2345 | 0x4f800, 0x4f814, | |
2346 | 0x50000, 0x500cc, | |
2347 | 0x50400, 0x50400, | |
2348 | 0x50800, 0x508cc, | |
2349 | 0x50c00, 0x50c00, | |
2350 | 0x51000, 0x5101c, | |
2351 | 0x51300, 0x51308, | |
2352 | }; | |
2353 | ||
2354 | int i; | |
2355 | struct adapter *ap = netdev2adap(dev); | |
2356 | static const unsigned int *reg_ranges; | |
2357 | int arr_size = 0, buf_size = 0; | |
2358 | ||
2359 | if (is_t4(ap->params.chip)) { | |
2360 | reg_ranges = &t4_reg_ranges[0]; | |
2361 | arr_size = ARRAY_SIZE(t4_reg_ranges); | |
2362 | buf_size = T4_REGMAP_SIZE; | |
2363 | } else { | |
2364 | reg_ranges = &t5_reg_ranges[0]; | |
2365 | arr_size = ARRAY_SIZE(t5_reg_ranges); | |
2366 | buf_size = T5_REGMAP_SIZE; | |
2367 | } | |
2368 | ||
2369 | regs->version = mk_adap_vers(ap); | |
2370 | ||
2371 | memset(buf, 0, buf_size); | |
2372 | for (i = 0; i < arr_size; i += 2) | |
2373 | reg_block_dump(ap, buf, reg_ranges[i], reg_ranges[i + 1]); | |
2374 | } | |
2375 | ||
2376 | static int restart_autoneg(struct net_device *dev) | |
2377 | { | |
2378 | struct port_info *p = netdev_priv(dev); | |
2379 | ||
2380 | if (!netif_running(dev)) | |
2381 | return -EAGAIN; | |
2382 | if (p->link_cfg.autoneg != AUTONEG_ENABLE) | |
2383 | return -EINVAL; | |
2384 | t4_restart_aneg(p->adapter, p->adapter->fn, p->tx_chan); | |
2385 | return 0; | |
2386 | } | |
2387 | ||
2388 | static int identify_port(struct net_device *dev, | |
2389 | enum ethtool_phys_id_state state) | |
2390 | { | |
2391 | unsigned int val; | |
2392 | struct adapter *adap = netdev2adap(dev); | |
2393 | ||
2394 | if (state == ETHTOOL_ID_ACTIVE) | |
2395 | val = 0xffff; | |
2396 | else if (state == ETHTOOL_ID_INACTIVE) | |
2397 | val = 0; | |
2398 | else | |
2399 | return -EINVAL; | |
2400 | ||
2401 | return t4_identify_port(adap, adap->fn, netdev2pinfo(dev)->viid, val); | |
2402 | } | |
2403 | ||
2404 | static unsigned int from_fw_linkcaps(unsigned int type, unsigned int caps) | |
2405 | { | |
2406 | unsigned int v = 0; | |
2407 | ||
2408 | if (type == FW_PORT_TYPE_BT_SGMII || type == FW_PORT_TYPE_BT_XFI || | |
2409 | type == FW_PORT_TYPE_BT_XAUI) { | |
2410 | v |= SUPPORTED_TP; | |
2411 | if (caps & FW_PORT_CAP_SPEED_100M) | |
2412 | v |= SUPPORTED_100baseT_Full; | |
2413 | if (caps & FW_PORT_CAP_SPEED_1G) | |
2414 | v |= SUPPORTED_1000baseT_Full; | |
2415 | if (caps & FW_PORT_CAP_SPEED_10G) | |
2416 | v |= SUPPORTED_10000baseT_Full; | |
2417 | } else if (type == FW_PORT_TYPE_KX4 || type == FW_PORT_TYPE_KX) { | |
2418 | v |= SUPPORTED_Backplane; | |
2419 | if (caps & FW_PORT_CAP_SPEED_1G) | |
2420 | v |= SUPPORTED_1000baseKX_Full; | |
2421 | if (caps & FW_PORT_CAP_SPEED_10G) | |
2422 | v |= SUPPORTED_10000baseKX4_Full; | |
2423 | } else if (type == FW_PORT_TYPE_KR) | |
2424 | v |= SUPPORTED_Backplane | SUPPORTED_10000baseKR_Full; | |
2425 | else if (type == FW_PORT_TYPE_BP_AP) | |
2426 | v |= SUPPORTED_Backplane | SUPPORTED_10000baseR_FEC | | |
2427 | SUPPORTED_10000baseKR_Full | SUPPORTED_1000baseKX_Full; | |
2428 | else if (type == FW_PORT_TYPE_BP4_AP) | |
2429 | v |= SUPPORTED_Backplane | SUPPORTED_10000baseR_FEC | | |
2430 | SUPPORTED_10000baseKR_Full | SUPPORTED_1000baseKX_Full | | |
2431 | SUPPORTED_10000baseKX4_Full; | |
2432 | else if (type == FW_PORT_TYPE_FIBER_XFI || | |
2433 | type == FW_PORT_TYPE_FIBER_XAUI || type == FW_PORT_TYPE_SFP) | |
2434 | v |= SUPPORTED_FIBRE; | |
2435 | else if (type == FW_PORT_TYPE_BP40_BA) | |
2436 | v |= SUPPORTED_40000baseSR4_Full; | |
2437 | ||
2438 | if (caps & FW_PORT_CAP_ANEG) | |
2439 | v |= SUPPORTED_Autoneg; | |
2440 | return v; | |
2441 | } | |
2442 | ||
2443 | static unsigned int to_fw_linkcaps(unsigned int caps) | |
2444 | { | |
2445 | unsigned int v = 0; | |
2446 | ||
2447 | if (caps & ADVERTISED_100baseT_Full) | |
2448 | v |= FW_PORT_CAP_SPEED_100M; | |
2449 | if (caps & ADVERTISED_1000baseT_Full) | |
2450 | v |= FW_PORT_CAP_SPEED_1G; | |
2451 | if (caps & ADVERTISED_10000baseT_Full) | |
2452 | v |= FW_PORT_CAP_SPEED_10G; | |
2453 | if (caps & ADVERTISED_40000baseSR4_Full) | |
2454 | v |= FW_PORT_CAP_SPEED_40G; | |
2455 | return v; | |
2456 | } | |
2457 | ||
2458 | static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
2459 | { | |
2460 | const struct port_info *p = netdev_priv(dev); | |
2461 | ||
2462 | if (p->port_type == FW_PORT_TYPE_BT_SGMII || | |
2463 | p->port_type == FW_PORT_TYPE_BT_XFI || | |
2464 | p->port_type == FW_PORT_TYPE_BT_XAUI) | |
2465 | cmd->port = PORT_TP; | |
2466 | else if (p->port_type == FW_PORT_TYPE_FIBER_XFI || | |
2467 | p->port_type == FW_PORT_TYPE_FIBER_XAUI) | |
2468 | cmd->port = PORT_FIBRE; | |
2469 | else if (p->port_type == FW_PORT_TYPE_SFP || | |
2470 | p->port_type == FW_PORT_TYPE_QSFP_10G || | |
2471 | p->port_type == FW_PORT_TYPE_QSFP) { | |
2472 | if (p->mod_type == FW_PORT_MOD_TYPE_LR || | |
2473 | p->mod_type == FW_PORT_MOD_TYPE_SR || | |
2474 | p->mod_type == FW_PORT_MOD_TYPE_ER || | |
2475 | p->mod_type == FW_PORT_MOD_TYPE_LRM) | |
2476 | cmd->port = PORT_FIBRE; | |
2477 | else if (p->mod_type == FW_PORT_MOD_TYPE_TWINAX_PASSIVE || | |
2478 | p->mod_type == FW_PORT_MOD_TYPE_TWINAX_ACTIVE) | |
2479 | cmd->port = PORT_DA; | |
2480 | else | |
2481 | cmd->port = PORT_OTHER; | |
2482 | } else | |
2483 | cmd->port = PORT_OTHER; | |
2484 | ||
2485 | if (p->mdio_addr >= 0) { | |
2486 | cmd->phy_address = p->mdio_addr; | |
2487 | cmd->transceiver = XCVR_EXTERNAL; | |
2488 | cmd->mdio_support = p->port_type == FW_PORT_TYPE_BT_SGMII ? | |
2489 | MDIO_SUPPORTS_C22 : MDIO_SUPPORTS_C45; | |
2490 | } else { | |
2491 | cmd->phy_address = 0; /* not really, but no better option */ | |
2492 | cmd->transceiver = XCVR_INTERNAL; | |
2493 | cmd->mdio_support = 0; | |
2494 | } | |
2495 | ||
2496 | cmd->supported = from_fw_linkcaps(p->port_type, p->link_cfg.supported); | |
2497 | cmd->advertising = from_fw_linkcaps(p->port_type, | |
2498 | p->link_cfg.advertising); | |
2499 | ethtool_cmd_speed_set(cmd, | |
2500 | netif_carrier_ok(dev) ? p->link_cfg.speed : 0); | |
2501 | cmd->duplex = DUPLEX_FULL; | |
2502 | cmd->autoneg = p->link_cfg.autoneg; | |
2503 | cmd->maxtxpkt = 0; | |
2504 | cmd->maxrxpkt = 0; | |
2505 | return 0; | |
2506 | } | |
2507 | ||
2508 | static unsigned int speed_to_caps(int speed) | |
2509 | { | |
2510 | if (speed == 100) | |
2511 | return FW_PORT_CAP_SPEED_100M; | |
2512 | if (speed == 1000) | |
2513 | return FW_PORT_CAP_SPEED_1G; | |
2514 | if (speed == 10000) | |
2515 | return FW_PORT_CAP_SPEED_10G; | |
2516 | if (speed == 40000) | |
2517 | return FW_PORT_CAP_SPEED_40G; | |
2518 | return 0; | |
2519 | } | |
2520 | ||
2521 | static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
2522 | { | |
2523 | unsigned int cap; | |
2524 | struct port_info *p = netdev_priv(dev); | |
2525 | struct link_config *lc = &p->link_cfg; | |
2526 | u32 speed = ethtool_cmd_speed(cmd); | |
2527 | ||
2528 | if (cmd->duplex != DUPLEX_FULL) /* only full-duplex supported */ | |
2529 | return -EINVAL; | |
2530 | ||
2531 | if (!(lc->supported & FW_PORT_CAP_ANEG)) { | |
2532 | /* | |
2533 | * PHY offers a single speed. See if that's what's | |
2534 | * being requested. | |
2535 | */ | |
2536 | if (cmd->autoneg == AUTONEG_DISABLE && | |
2537 | (lc->supported & speed_to_caps(speed))) | |
2538 | return 0; | |
2539 | return -EINVAL; | |
2540 | } | |
2541 | ||
2542 | if (cmd->autoneg == AUTONEG_DISABLE) { | |
2543 | cap = speed_to_caps(speed); | |
2544 | ||
2545 | if (!(lc->supported & cap) || | |
2546 | (speed == 1000) || | |
2547 | (speed == 10000) || | |
2548 | (speed == 40000)) | |
2549 | return -EINVAL; | |
2550 | lc->requested_speed = cap; | |
2551 | lc->advertising = 0; | |
2552 | } else { | |
2553 | cap = to_fw_linkcaps(cmd->advertising); | |
2554 | if (!(lc->supported & cap)) | |
2555 | return -EINVAL; | |
2556 | lc->requested_speed = 0; | |
2557 | lc->advertising = cap | FW_PORT_CAP_ANEG; | |
2558 | } | |
2559 | lc->autoneg = cmd->autoneg; | |
2560 | ||
2561 | if (netif_running(dev)) | |
2562 | return t4_link_start(p->adapter, p->adapter->fn, p->tx_chan, | |
2563 | lc); | |
2564 | return 0; | |
2565 | } | |
2566 | ||
2567 | static void get_pauseparam(struct net_device *dev, | |
2568 | struct ethtool_pauseparam *epause) | |
2569 | { | |
2570 | struct port_info *p = netdev_priv(dev); | |
2571 | ||
2572 | epause->autoneg = (p->link_cfg.requested_fc & PAUSE_AUTONEG) != 0; | |
2573 | epause->rx_pause = (p->link_cfg.fc & PAUSE_RX) != 0; | |
2574 | epause->tx_pause = (p->link_cfg.fc & PAUSE_TX) != 0; | |
2575 | } | |
2576 | ||
2577 | static int set_pauseparam(struct net_device *dev, | |
2578 | struct ethtool_pauseparam *epause) | |
2579 | { | |
2580 | struct port_info *p = netdev_priv(dev); | |
2581 | struct link_config *lc = &p->link_cfg; | |
2582 | ||
2583 | if (epause->autoneg == AUTONEG_DISABLE) | |
2584 | lc->requested_fc = 0; | |
2585 | else if (lc->supported & FW_PORT_CAP_ANEG) | |
2586 | lc->requested_fc = PAUSE_AUTONEG; | |
2587 | else | |
2588 | return -EINVAL; | |
2589 | ||
2590 | if (epause->rx_pause) | |
2591 | lc->requested_fc |= PAUSE_RX; | |
2592 | if (epause->tx_pause) | |
2593 | lc->requested_fc |= PAUSE_TX; | |
2594 | if (netif_running(dev)) | |
2595 | return t4_link_start(p->adapter, p->adapter->fn, p->tx_chan, | |
2596 | lc); | |
2597 | return 0; | |
2598 | } | |
2599 | ||
2600 | static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e) | |
2601 | { | |
2602 | const struct port_info *pi = netdev_priv(dev); | |
2603 | const struct sge *s = &pi->adapter->sge; | |
2604 | ||
2605 | e->rx_max_pending = MAX_RX_BUFFERS; | |
2606 | e->rx_mini_max_pending = MAX_RSPQ_ENTRIES; | |
2607 | e->rx_jumbo_max_pending = 0; | |
2608 | e->tx_max_pending = MAX_TXQ_ENTRIES; | |
2609 | ||
2610 | e->rx_pending = s->ethrxq[pi->first_qset].fl.size - 8; | |
2611 | e->rx_mini_pending = s->ethrxq[pi->first_qset].rspq.size; | |
2612 | e->rx_jumbo_pending = 0; | |
2613 | e->tx_pending = s->ethtxq[pi->first_qset].q.size; | |
2614 | } | |
2615 | ||
2616 | static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e) | |
2617 | { | |
2618 | int i; | |
2619 | const struct port_info *pi = netdev_priv(dev); | |
2620 | struct adapter *adapter = pi->adapter; | |
2621 | struct sge *s = &adapter->sge; | |
2622 | ||
2623 | if (e->rx_pending > MAX_RX_BUFFERS || e->rx_jumbo_pending || | |
2624 | e->tx_pending > MAX_TXQ_ENTRIES || | |
2625 | e->rx_mini_pending > MAX_RSPQ_ENTRIES || | |
2626 | e->rx_mini_pending < MIN_RSPQ_ENTRIES || | |
2627 | e->rx_pending < MIN_FL_ENTRIES || e->tx_pending < MIN_TXQ_ENTRIES) | |
2628 | return -EINVAL; | |
2629 | ||
2630 | if (adapter->flags & FULL_INIT_DONE) | |
2631 | return -EBUSY; | |
2632 | ||
2633 | for (i = 0; i < pi->nqsets; ++i) { | |
2634 | s->ethtxq[pi->first_qset + i].q.size = e->tx_pending; | |
2635 | s->ethrxq[pi->first_qset + i].fl.size = e->rx_pending + 8; | |
2636 | s->ethrxq[pi->first_qset + i].rspq.size = e->rx_mini_pending; | |
2637 | } | |
2638 | return 0; | |
2639 | } | |
2640 | ||
2641 | static int closest_timer(const struct sge *s, int time) | |
2642 | { | |
2643 | int i, delta, match = 0, min_delta = INT_MAX; | |
2644 | ||
2645 | for (i = 0; i < ARRAY_SIZE(s->timer_val); i++) { | |
2646 | delta = time - s->timer_val[i]; | |
2647 | if (delta < 0) | |
2648 | delta = -delta; | |
2649 | if (delta < min_delta) { | |
2650 | min_delta = delta; | |
2651 | match = i; | |
2652 | } | |
2653 | } | |
2654 | return match; | |
2655 | } | |
2656 | ||
2657 | static int closest_thres(const struct sge *s, int thres) | |
2658 | { | |
2659 | int i, delta, match = 0, min_delta = INT_MAX; | |
2660 | ||
2661 | for (i = 0; i < ARRAY_SIZE(s->counter_val); i++) { | |
2662 | delta = thres - s->counter_val[i]; | |
2663 | if (delta < 0) | |
2664 | delta = -delta; | |
2665 | if (delta < min_delta) { | |
2666 | min_delta = delta; | |
2667 | match = i; | |
2668 | } | |
2669 | } | |
2670 | return match; | |
2671 | } | |
2672 | ||
2673 | /* | |
2674 | * Return a queue's interrupt hold-off time in us. 0 means no timer. | |
2675 | */ | |
2676 | static unsigned int qtimer_val(const struct adapter *adap, | |
2677 | const struct sge_rspq *q) | |
2678 | { | |
2679 | unsigned int idx = q->intr_params >> 1; | |
2680 | ||
2681 | return idx < SGE_NTIMERS ? adap->sge.timer_val[idx] : 0; | |
2682 | } | |
2683 | ||
2684 | /** | |
2685 | * set_rspq_intr_params - set a queue's interrupt holdoff parameters | |
2686 | * @q: the Rx queue | |
2687 | * @us: the hold-off time in us, or 0 to disable timer | |
2688 | * @cnt: the hold-off packet count, or 0 to disable counter | |
2689 | * | |
2690 | * Sets an Rx queue's interrupt hold-off time and packet count. At least | |
2691 | * one of the two needs to be enabled for the queue to generate interrupts. | |
2692 | */ | |
2693 | static int set_rspq_intr_params(struct sge_rspq *q, | |
2694 | unsigned int us, unsigned int cnt) | |
2695 | { | |
2696 | struct adapter *adap = q->adap; | |
2697 | ||
2698 | if ((us | cnt) == 0) | |
2699 | cnt = 1; | |
2700 | ||
2701 | if (cnt) { | |
2702 | int err; | |
2703 | u32 v, new_idx; | |
2704 | ||
2705 | new_idx = closest_thres(&adap->sge, cnt); | |
2706 | if (q->desc && q->pktcnt_idx != new_idx) { | |
2707 | /* the queue has already been created, update it */ | |
2708 | v = FW_PARAMS_MNEM(FW_PARAMS_MNEM_DMAQ) | | |
2709 | FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DMAQ_IQ_INTCNTTHRESH) | | |
2710 | FW_PARAMS_PARAM_YZ(q->cntxt_id); | |
2711 | err = t4_set_params(adap, adap->fn, adap->fn, 0, 1, &v, | |
2712 | &new_idx); | |
2713 | if (err) | |
2714 | return err; | |
2715 | } | |
2716 | q->pktcnt_idx = new_idx; | |
2717 | } | |
2718 | ||
2719 | us = us == 0 ? 6 : closest_timer(&adap->sge, us); | |
2720 | q->intr_params = QINTR_TIMER_IDX(us) | (cnt > 0 ? QINTR_CNT_EN : 0); | |
2721 | return 0; | |
2722 | } | |
2723 | ||
2724 | /** | |
2725 | * set_rx_intr_params - set a net devices's RX interrupt holdoff paramete! | |
2726 | * @dev: the network device | |
2727 | * @us: the hold-off time in us, or 0 to disable timer | |
2728 | * @cnt: the hold-off packet count, or 0 to disable counter | |
2729 | * | |
2730 | * Set the RX interrupt hold-off parameters for a network device. | |
2731 | */ | |
2732 | static int set_rx_intr_params(struct net_device *dev, | |
2733 | unsigned int us, unsigned int cnt) | |
2734 | { | |
2735 | int i, err; | |
2736 | struct port_info *pi = netdev_priv(dev); | |
2737 | struct adapter *adap = pi->adapter; | |
2738 | struct sge_eth_rxq *q = &adap->sge.ethrxq[pi->first_qset]; | |
2739 | ||
2740 | for (i = 0; i < pi->nqsets; i++, q++) { | |
2741 | err = set_rspq_intr_params(&q->rspq, us, cnt); | |
2742 | if (err) | |
2743 | return err; | |
2744 | } | |
2745 | return 0; | |
2746 | } | |
2747 | ||
2748 | static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c) | |
2749 | { | |
2750 | return set_rx_intr_params(dev, c->rx_coalesce_usecs, | |
2751 | c->rx_max_coalesced_frames); | |
2752 | } | |
2753 | ||
2754 | static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c) | |
2755 | { | |
2756 | const struct port_info *pi = netdev_priv(dev); | |
2757 | const struct adapter *adap = pi->adapter; | |
2758 | const struct sge_rspq *rq = &adap->sge.ethrxq[pi->first_qset].rspq; | |
2759 | ||
2760 | c->rx_coalesce_usecs = qtimer_val(adap, rq); | |
2761 | c->rx_max_coalesced_frames = (rq->intr_params & QINTR_CNT_EN) ? | |
2762 | adap->sge.counter_val[rq->pktcnt_idx] : 0; | |
2763 | return 0; | |
2764 | } | |
2765 | ||
2766 | /** | |
2767 | * eeprom_ptov - translate a physical EEPROM address to virtual | |
2768 | * @phys_addr: the physical EEPROM address | |
2769 | * @fn: the PCI function number | |
2770 | * @sz: size of function-specific area | |
2771 | * | |
2772 | * Translate a physical EEPROM address to virtual. The first 1K is | |
2773 | * accessed through virtual addresses starting at 31K, the rest is | |
2774 | * accessed through virtual addresses starting at 0. | |
2775 | * | |
2776 | * The mapping is as follows: | |
2777 | * [0..1K) -> [31K..32K) | |
2778 | * [1K..1K+A) -> [31K-A..31K) | |
2779 | * [1K+A..ES) -> [0..ES-A-1K) | |
2780 | * | |
2781 | * where A = @fn * @sz, and ES = EEPROM size. | |
2782 | */ | |
2783 | static int eeprom_ptov(unsigned int phys_addr, unsigned int fn, unsigned int sz) | |
2784 | { | |
2785 | fn *= sz; | |
2786 | if (phys_addr < 1024) | |
2787 | return phys_addr + (31 << 10); | |
2788 | if (phys_addr < 1024 + fn) | |
2789 | return 31744 - fn + phys_addr - 1024; | |
2790 | if (phys_addr < EEPROMSIZE) | |
2791 | return phys_addr - 1024 - fn; | |
2792 | return -EINVAL; | |
2793 | } | |
2794 | ||
2795 | /* | |
2796 | * The next two routines implement eeprom read/write from physical addresses. | |
2797 | */ | |
2798 | static int eeprom_rd_phys(struct adapter *adap, unsigned int phys_addr, u32 *v) | |
2799 | { | |
2800 | int vaddr = eeprom_ptov(phys_addr, adap->fn, EEPROMPFSIZE); | |
2801 | ||
2802 | if (vaddr >= 0) | |
2803 | vaddr = pci_read_vpd(adap->pdev, vaddr, sizeof(u32), v); | |
2804 | return vaddr < 0 ? vaddr : 0; | |
2805 | } | |
2806 | ||
2807 | static int eeprom_wr_phys(struct adapter *adap, unsigned int phys_addr, u32 v) | |
2808 | { | |
2809 | int vaddr = eeprom_ptov(phys_addr, adap->fn, EEPROMPFSIZE); | |
2810 | ||
2811 | if (vaddr >= 0) | |
2812 | vaddr = pci_write_vpd(adap->pdev, vaddr, sizeof(u32), &v); | |
2813 | return vaddr < 0 ? vaddr : 0; | |
2814 | } | |
2815 | ||
2816 | #define EEPROM_MAGIC 0x38E2F10C | |
2817 | ||
2818 | static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e, | |
2819 | u8 *data) | |
2820 | { | |
2821 | int i, err = 0; | |
2822 | struct adapter *adapter = netdev2adap(dev); | |
2823 | ||
2824 | u8 *buf = kmalloc(EEPROMSIZE, GFP_KERNEL); | |
2825 | if (!buf) | |
2826 | return -ENOMEM; | |
2827 | ||
2828 | e->magic = EEPROM_MAGIC; | |
2829 | for (i = e->offset & ~3; !err && i < e->offset + e->len; i += 4) | |
2830 | err = eeprom_rd_phys(adapter, i, (u32 *)&buf[i]); | |
2831 | ||
2832 | if (!err) | |
2833 | memcpy(data, buf + e->offset, e->len); | |
2834 | kfree(buf); | |
2835 | return err; | |
2836 | } | |
2837 | ||
2838 | static int set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, | |
2839 | u8 *data) | |
2840 | { | |
2841 | u8 *buf; | |
2842 | int err = 0; | |
2843 | u32 aligned_offset, aligned_len, *p; | |
2844 | struct adapter *adapter = netdev2adap(dev); | |
2845 | ||
2846 | if (eeprom->magic != EEPROM_MAGIC) | |
2847 | return -EINVAL; | |
2848 | ||
2849 | aligned_offset = eeprom->offset & ~3; | |
2850 | aligned_len = (eeprom->len + (eeprom->offset & 3) + 3) & ~3; | |
2851 | ||
2852 | if (adapter->fn > 0) { | |
2853 | u32 start = 1024 + adapter->fn * EEPROMPFSIZE; | |
2854 | ||
2855 | if (aligned_offset < start || | |
2856 | aligned_offset + aligned_len > start + EEPROMPFSIZE) | |
2857 | return -EPERM; | |
2858 | } | |
2859 | ||
2860 | if (aligned_offset != eeprom->offset || aligned_len != eeprom->len) { | |
2861 | /* | |
2862 | * RMW possibly needed for first or last words. | |
2863 | */ | |
2864 | buf = kmalloc(aligned_len, GFP_KERNEL); | |
2865 | if (!buf) | |
2866 | return -ENOMEM; | |
2867 | err = eeprom_rd_phys(adapter, aligned_offset, (u32 *)buf); | |
2868 | if (!err && aligned_len > 4) | |
2869 | err = eeprom_rd_phys(adapter, | |
2870 | aligned_offset + aligned_len - 4, | |
2871 | (u32 *)&buf[aligned_len - 4]); | |
2872 | if (err) | |
2873 | goto out; | |
2874 | memcpy(buf + (eeprom->offset & 3), data, eeprom->len); | |
2875 | } else | |
2876 | buf = data; | |
2877 | ||
2878 | err = t4_seeprom_wp(adapter, false); | |
2879 | if (err) | |
2880 | goto out; | |
2881 | ||
2882 | for (p = (u32 *)buf; !err && aligned_len; aligned_len -= 4, p++) { | |
2883 | err = eeprom_wr_phys(adapter, aligned_offset, *p); | |
2884 | aligned_offset += 4; | |
2885 | } | |
2886 | ||
2887 | if (!err) | |
2888 | err = t4_seeprom_wp(adapter, true); | |
2889 | out: | |
2890 | if (buf != data) | |
2891 | kfree(buf); | |
2892 | return err; | |
2893 | } | |
2894 | ||
2895 | static int set_flash(struct net_device *netdev, struct ethtool_flash *ef) | |
2896 | { | |
2897 | int ret; | |
2898 | const struct firmware *fw; | |
2899 | struct adapter *adap = netdev2adap(netdev); | |
2900 | ||
2901 | ef->data[sizeof(ef->data) - 1] = '\0'; | |
2902 | ret = request_firmware(&fw, ef->data, adap->pdev_dev); | |
2903 | if (ret < 0) | |
2904 | return ret; | |
2905 | ||
2906 | ret = t4_load_fw(adap, fw->data, fw->size); | |
2907 | release_firmware(fw); | |
2908 | if (!ret) | |
2909 | dev_info(adap->pdev_dev, "loaded firmware %s\n", ef->data); | |
2910 | return ret; | |
2911 | } | |
2912 | ||
2913 | #define WOL_SUPPORTED (WAKE_BCAST | WAKE_MAGIC) | |
2914 | #define BCAST_CRC 0xa0ccc1a6 | |
2915 | ||
2916 | static void get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
2917 | { | |
2918 | wol->supported = WAKE_BCAST | WAKE_MAGIC; | |
2919 | wol->wolopts = netdev2adap(dev)->wol; | |
2920 | memset(&wol->sopass, 0, sizeof(wol->sopass)); | |
2921 | } | |
2922 | ||
2923 | static int set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
2924 | { | |
2925 | int err = 0; | |
2926 | struct port_info *pi = netdev_priv(dev); | |
2927 | ||
2928 | if (wol->wolopts & ~WOL_SUPPORTED) | |
2929 | return -EINVAL; | |
2930 | t4_wol_magic_enable(pi->adapter, pi->tx_chan, | |
2931 | (wol->wolopts & WAKE_MAGIC) ? dev->dev_addr : NULL); | |
2932 | if (wol->wolopts & WAKE_BCAST) { | |
2933 | err = t4_wol_pat_enable(pi->adapter, pi->tx_chan, 0xfe, ~0ULL, | |
2934 | ~0ULL, 0, false); | |
2935 | if (!err) | |
2936 | err = t4_wol_pat_enable(pi->adapter, pi->tx_chan, 1, | |
2937 | ~6ULL, ~0ULL, BCAST_CRC, true); | |
2938 | } else | |
2939 | t4_wol_pat_enable(pi->adapter, pi->tx_chan, 0, 0, 0, 0, false); | |
2940 | return err; | |
2941 | } | |
2942 | ||
2943 | static int cxgb_set_features(struct net_device *dev, netdev_features_t features) | |
2944 | { | |
2945 | const struct port_info *pi = netdev_priv(dev); | |
2946 | netdev_features_t changed = dev->features ^ features; | |
2947 | int err; | |
2948 | ||
2949 | if (!(changed & NETIF_F_HW_VLAN_CTAG_RX)) | |
2950 | return 0; | |
2951 | ||
2952 | err = t4_set_rxmode(pi->adapter, pi->adapter->fn, pi->viid, -1, | |
2953 | -1, -1, -1, | |
2954 | !!(features & NETIF_F_HW_VLAN_CTAG_RX), true); | |
2955 | if (unlikely(err)) | |
2956 | dev->features = features ^ NETIF_F_HW_VLAN_CTAG_RX; | |
2957 | return err; | |
2958 | } | |
2959 | ||
2960 | static u32 get_rss_table_size(struct net_device *dev) | |
2961 | { | |
2962 | const struct port_info *pi = netdev_priv(dev); | |
2963 | ||
2964 | return pi->rss_size; | |
2965 | } | |
2966 | ||
2967 | static int get_rss_table(struct net_device *dev, u32 *p, u8 *key) | |
2968 | { | |
2969 | const struct port_info *pi = netdev_priv(dev); | |
2970 | unsigned int n = pi->rss_size; | |
2971 | ||
2972 | while (n--) | |
2973 | p[n] = pi->rss[n]; | |
2974 | return 0; | |
2975 | } | |
2976 | ||
2977 | static int set_rss_table(struct net_device *dev, const u32 *p, const u8 *key) | |
2978 | { | |
2979 | unsigned int i; | |
2980 | struct port_info *pi = netdev_priv(dev); | |
2981 | ||
2982 | for (i = 0; i < pi->rss_size; i++) | |
2983 | pi->rss[i] = p[i]; | |
2984 | if (pi->adapter->flags & FULL_INIT_DONE) | |
2985 | return write_rss(pi, pi->rss); | |
2986 | return 0; | |
2987 | } | |
2988 | ||
2989 | static int get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info, | |
2990 | u32 *rules) | |
2991 | { | |
2992 | const struct port_info *pi = netdev_priv(dev); | |
2993 | ||
2994 | switch (info->cmd) { | |
2995 | case ETHTOOL_GRXFH: { | |
2996 | unsigned int v = pi->rss_mode; | |
2997 | ||
2998 | info->data = 0; | |
2999 | switch (info->flow_type) { | |
3000 | case TCP_V4_FLOW: | |
3001 | if (v & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN) | |
3002 | info->data = RXH_IP_SRC | RXH_IP_DST | | |
3003 | RXH_L4_B_0_1 | RXH_L4_B_2_3; | |
3004 | else if (v & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN) | |
3005 | info->data = RXH_IP_SRC | RXH_IP_DST; | |
3006 | break; | |
3007 | case UDP_V4_FLOW: | |
3008 | if ((v & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN) && | |
3009 | (v & FW_RSS_VI_CONFIG_CMD_UDPEN)) | |
3010 | info->data = RXH_IP_SRC | RXH_IP_DST | | |
3011 | RXH_L4_B_0_1 | RXH_L4_B_2_3; | |
3012 | else if (v & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN) | |
3013 | info->data = RXH_IP_SRC | RXH_IP_DST; | |
3014 | break; | |
3015 | case SCTP_V4_FLOW: | |
3016 | case AH_ESP_V4_FLOW: | |
3017 | case IPV4_FLOW: | |
3018 | if (v & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN) | |
3019 | info->data = RXH_IP_SRC | RXH_IP_DST; | |
3020 | break; | |
3021 | case TCP_V6_FLOW: | |
3022 | if (v & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN) | |
3023 | info->data = RXH_IP_SRC | RXH_IP_DST | | |
3024 | RXH_L4_B_0_1 | RXH_L4_B_2_3; | |
3025 | else if (v & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN) | |
3026 | info->data = RXH_IP_SRC | RXH_IP_DST; | |
3027 | break; | |
3028 | case UDP_V6_FLOW: | |
3029 | if ((v & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN) && | |
3030 | (v & FW_RSS_VI_CONFIG_CMD_UDPEN)) | |
3031 | info->data = RXH_IP_SRC | RXH_IP_DST | | |
3032 | RXH_L4_B_0_1 | RXH_L4_B_2_3; | |
3033 | else if (v & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN) | |
3034 | info->data = RXH_IP_SRC | RXH_IP_DST; | |
3035 | break; | |
3036 | case SCTP_V6_FLOW: | |
3037 | case AH_ESP_V6_FLOW: | |
3038 | case IPV6_FLOW: | |
3039 | if (v & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN) | |
3040 | info->data = RXH_IP_SRC | RXH_IP_DST; | |
3041 | break; | |
3042 | } | |
3043 | return 0; | |
3044 | } | |
3045 | case ETHTOOL_GRXRINGS: | |
3046 | info->data = pi->nqsets; | |
3047 | return 0; | |
3048 | } | |
3049 | return -EOPNOTSUPP; | |
3050 | } | |
3051 | ||
3052 | static const struct ethtool_ops cxgb_ethtool_ops = { | |
3053 | .get_settings = get_settings, | |
3054 | .set_settings = set_settings, | |
3055 | .get_drvinfo = get_drvinfo, | |
3056 | .get_msglevel = get_msglevel, | |
3057 | .set_msglevel = set_msglevel, | |
3058 | .get_ringparam = get_sge_param, | |
3059 | .set_ringparam = set_sge_param, | |
3060 | .get_coalesce = get_coalesce, | |
3061 | .set_coalesce = set_coalesce, | |
3062 | .get_eeprom_len = get_eeprom_len, | |
3063 | .get_eeprom = get_eeprom, | |
3064 | .set_eeprom = set_eeprom, | |
3065 | .get_pauseparam = get_pauseparam, | |
3066 | .set_pauseparam = set_pauseparam, | |
3067 | .get_link = ethtool_op_get_link, | |
3068 | .get_strings = get_strings, | |
3069 | .set_phys_id = identify_port, | |
3070 | .nway_reset = restart_autoneg, | |
3071 | .get_sset_count = get_sset_count, | |
3072 | .get_ethtool_stats = get_stats, | |
3073 | .get_regs_len = get_regs_len, | |
3074 | .get_regs = get_regs, | |
3075 | .get_wol = get_wol, | |
3076 | .set_wol = set_wol, | |
3077 | .get_rxnfc = get_rxnfc, | |
3078 | .get_rxfh_indir_size = get_rss_table_size, | |
3079 | .get_rxfh = get_rss_table, | |
3080 | .set_rxfh = set_rss_table, | |
3081 | .flash_device = set_flash, | |
3082 | }; | |
3083 | ||
3084 | /* | |
3085 | * debugfs support | |
3086 | */ | |
3087 | static ssize_t mem_read(struct file *file, char __user *buf, size_t count, | |
3088 | loff_t *ppos) | |
3089 | { | |
3090 | loff_t pos = *ppos; | |
3091 | loff_t avail = file_inode(file)->i_size; | |
3092 | unsigned int mem = (uintptr_t)file->private_data & 3; | |
3093 | struct adapter *adap = file->private_data - mem; | |
3094 | __be32 *data; | |
3095 | int ret; | |
3096 | ||
3097 | if (pos < 0) | |
3098 | return -EINVAL; | |
3099 | if (pos >= avail) | |
3100 | return 0; | |
3101 | if (count > avail - pos) | |
3102 | count = avail - pos; | |
3103 | ||
3104 | data = t4_alloc_mem(count); | |
3105 | if (!data) | |
3106 | return -ENOMEM; | |
3107 | ||
3108 | spin_lock(&adap->win0_lock); | |
3109 | ret = t4_memory_rw(adap, 0, mem, pos, count, data, T4_MEMORY_READ); | |
3110 | spin_unlock(&adap->win0_lock); | |
3111 | if (ret) { | |
3112 | t4_free_mem(data); | |
3113 | return ret; | |
3114 | } | |
3115 | ret = copy_to_user(buf, data, count); | |
3116 | ||
3117 | t4_free_mem(data); | |
3118 | if (ret) | |
3119 | return -EFAULT; | |
3120 | ||
3121 | *ppos = pos + count; | |
3122 | return count; | |
3123 | } | |
3124 | ||
3125 | static const struct file_operations mem_debugfs_fops = { | |
3126 | .owner = THIS_MODULE, | |
3127 | .open = simple_open, | |
3128 | .read = mem_read, | |
3129 | .llseek = default_llseek, | |
3130 | }; | |
3131 | ||
3132 | static void add_debugfs_mem(struct adapter *adap, const char *name, | |
3133 | unsigned int idx, unsigned int size_mb) | |
3134 | { | |
3135 | struct dentry *de; | |
3136 | ||
3137 | de = debugfs_create_file(name, S_IRUSR, adap->debugfs_root, | |
3138 | (void *)adap + idx, &mem_debugfs_fops); | |
3139 | if (de && de->d_inode) | |
3140 | de->d_inode->i_size = size_mb << 20; | |
3141 | } | |
3142 | ||
3143 | static int setup_debugfs(struct adapter *adap) | |
3144 | { | |
3145 | int i; | |
3146 | u32 size; | |
3147 | ||
3148 | if (IS_ERR_OR_NULL(adap->debugfs_root)) | |
3149 | return -1; | |
3150 | ||
3151 | i = t4_read_reg(adap, MA_TARGET_MEM_ENABLE); | |
3152 | if (i & EDRAM0_ENABLE) { | |
3153 | size = t4_read_reg(adap, MA_EDRAM0_BAR); | |
3154 | add_debugfs_mem(adap, "edc0", MEM_EDC0, EDRAM_SIZE_GET(size)); | |
3155 | } | |
3156 | if (i & EDRAM1_ENABLE) { | |
3157 | size = t4_read_reg(adap, MA_EDRAM1_BAR); | |
3158 | add_debugfs_mem(adap, "edc1", MEM_EDC1, EDRAM_SIZE_GET(size)); | |
3159 | } | |
3160 | if (is_t4(adap->params.chip)) { | |
3161 | size = t4_read_reg(adap, MA_EXT_MEMORY_BAR); | |
3162 | if (i & EXT_MEM_ENABLE) | |
3163 | add_debugfs_mem(adap, "mc", MEM_MC, | |
3164 | EXT_MEM_SIZE_GET(size)); | |
3165 | } else { | |
3166 | if (i & EXT_MEM_ENABLE) { | |
3167 | size = t4_read_reg(adap, MA_EXT_MEMORY_BAR); | |
3168 | add_debugfs_mem(adap, "mc0", MEM_MC0, | |
3169 | EXT_MEM_SIZE_GET(size)); | |
3170 | } | |
3171 | if (i & EXT_MEM1_ENABLE) { | |
3172 | size = t4_read_reg(adap, MA_EXT_MEMORY1_BAR); | |
3173 | add_debugfs_mem(adap, "mc1", MEM_MC1, | |
3174 | EXT_MEM_SIZE_GET(size)); | |
3175 | } | |
3176 | } | |
3177 | if (adap->l2t) | |
3178 | debugfs_create_file("l2t", S_IRUSR, adap->debugfs_root, adap, | |
3179 | &t4_l2t_fops); | |
3180 | return 0; | |
3181 | } | |
3182 | ||
3183 | /* | |
3184 | * upper-layer driver support | |
3185 | */ | |
3186 | ||
3187 | /* | |
3188 | * Allocate an active-open TID and set it to the supplied value. | |
3189 | */ | |
3190 | int cxgb4_alloc_atid(struct tid_info *t, void *data) | |
3191 | { | |
3192 | int atid = -1; | |
3193 | ||
3194 | spin_lock_bh(&t->atid_lock); | |
3195 | if (t->afree) { | |
3196 | union aopen_entry *p = t->afree; | |
3197 | ||
3198 | atid = (p - t->atid_tab) + t->atid_base; | |
3199 | t->afree = p->next; | |
3200 | p->data = data; | |
3201 | t->atids_in_use++; | |
3202 | } | |
3203 | spin_unlock_bh(&t->atid_lock); | |
3204 | return atid; | |
3205 | } | |
3206 | EXPORT_SYMBOL(cxgb4_alloc_atid); | |
3207 | ||
3208 | /* | |
3209 | * Release an active-open TID. | |
3210 | */ | |
3211 | void cxgb4_free_atid(struct tid_info *t, unsigned int atid) | |
3212 | { | |
3213 | union aopen_entry *p = &t->atid_tab[atid - t->atid_base]; | |
3214 | ||
3215 | spin_lock_bh(&t->atid_lock); | |
3216 | p->next = t->afree; | |
3217 | t->afree = p; | |
3218 | t->atids_in_use--; | |
3219 | spin_unlock_bh(&t->atid_lock); | |
3220 | } | |
3221 | EXPORT_SYMBOL(cxgb4_free_atid); | |
3222 | ||
3223 | /* | |
3224 | * Allocate a server TID and set it to the supplied value. | |
3225 | */ | |
3226 | int cxgb4_alloc_stid(struct tid_info *t, int family, void *data) | |
3227 | { | |
3228 | int stid; | |
3229 | ||
3230 | spin_lock_bh(&t->stid_lock); | |
3231 | if (family == PF_INET) { | |
3232 | stid = find_first_zero_bit(t->stid_bmap, t->nstids); | |
3233 | if (stid < t->nstids) | |
3234 | __set_bit(stid, t->stid_bmap); | |
3235 | else | |
3236 | stid = -1; | |
3237 | } else { | |
3238 | stid = bitmap_find_free_region(t->stid_bmap, t->nstids, 2); | |
3239 | if (stid < 0) | |
3240 | stid = -1; | |
3241 | } | |
3242 | if (stid >= 0) { | |
3243 | t->stid_tab[stid].data = data; | |
3244 | stid += t->stid_base; | |
3245 | /* IPv6 requires max of 520 bits or 16 cells in TCAM | |
3246 | * This is equivalent to 4 TIDs. With CLIP enabled it | |
3247 | * needs 2 TIDs. | |
3248 | */ | |
3249 | if (family == PF_INET) | |
3250 | t->stids_in_use++; | |
3251 | else | |
3252 | t->stids_in_use += 4; | |
3253 | } | |
3254 | spin_unlock_bh(&t->stid_lock); | |
3255 | return stid; | |
3256 | } | |
3257 | EXPORT_SYMBOL(cxgb4_alloc_stid); | |
3258 | ||
3259 | /* Allocate a server filter TID and set it to the supplied value. | |
3260 | */ | |
3261 | int cxgb4_alloc_sftid(struct tid_info *t, int family, void *data) | |
3262 | { | |
3263 | int stid; | |
3264 | ||
3265 | spin_lock_bh(&t->stid_lock); | |
3266 | if (family == PF_INET) { | |
3267 | stid = find_next_zero_bit(t->stid_bmap, | |
3268 | t->nstids + t->nsftids, t->nstids); | |
3269 | if (stid < (t->nstids + t->nsftids)) | |
3270 | __set_bit(stid, t->stid_bmap); | |
3271 | else | |
3272 | stid = -1; | |
3273 | } else { | |
3274 | stid = -1; | |
3275 | } | |
3276 | if (stid >= 0) { | |
3277 | t->stid_tab[stid].data = data; | |
3278 | stid -= t->nstids; | |
3279 | stid += t->sftid_base; | |
3280 | t->stids_in_use++; | |
3281 | } | |
3282 | spin_unlock_bh(&t->stid_lock); | |
3283 | return stid; | |
3284 | } | |
3285 | EXPORT_SYMBOL(cxgb4_alloc_sftid); | |
3286 | ||
3287 | /* Release a server TID. | |
3288 | */ | |
3289 | void cxgb4_free_stid(struct tid_info *t, unsigned int stid, int family) | |
3290 | { | |
3291 | /* Is it a server filter TID? */ | |
3292 | if (t->nsftids && (stid >= t->sftid_base)) { | |
3293 | stid -= t->sftid_base; | |
3294 | stid += t->nstids; | |
3295 | } else { | |
3296 | stid -= t->stid_base; | |
3297 | } | |
3298 | ||
3299 | spin_lock_bh(&t->stid_lock); | |
3300 | if (family == PF_INET) | |
3301 | __clear_bit(stid, t->stid_bmap); | |
3302 | else | |
3303 | bitmap_release_region(t->stid_bmap, stid, 2); | |
3304 | t->stid_tab[stid].data = NULL; | |
3305 | if (family == PF_INET) | |
3306 | t->stids_in_use--; | |
3307 | else | |
3308 | t->stids_in_use -= 4; | |
3309 | spin_unlock_bh(&t->stid_lock); | |
3310 | } | |
3311 | EXPORT_SYMBOL(cxgb4_free_stid); | |
3312 | ||
3313 | /* | |
3314 | * Populate a TID_RELEASE WR. Caller must properly size the skb. | |
3315 | */ | |
3316 | static void mk_tid_release(struct sk_buff *skb, unsigned int chan, | |
3317 | unsigned int tid) | |
3318 | { | |
3319 | struct cpl_tid_release *req; | |
3320 | ||
3321 | set_wr_txq(skb, CPL_PRIORITY_SETUP, chan); | |
3322 | req = (struct cpl_tid_release *)__skb_put(skb, sizeof(*req)); | |
3323 | INIT_TP_WR(req, tid); | |
3324 | OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_TID_RELEASE, tid)); | |
3325 | } | |
3326 | ||
3327 | /* | |
3328 | * Queue a TID release request and if necessary schedule a work queue to | |
3329 | * process it. | |
3330 | */ | |
3331 | static void cxgb4_queue_tid_release(struct tid_info *t, unsigned int chan, | |
3332 | unsigned int tid) | |
3333 | { | |
3334 | void **p = &t->tid_tab[tid]; | |
3335 | struct adapter *adap = container_of(t, struct adapter, tids); | |
3336 | ||
3337 | spin_lock_bh(&adap->tid_release_lock); | |
3338 | *p = adap->tid_release_head; | |
3339 | /* Low 2 bits encode the Tx channel number */ | |
3340 | adap->tid_release_head = (void **)((uintptr_t)p | chan); | |
3341 | if (!adap->tid_release_task_busy) { | |
3342 | adap->tid_release_task_busy = true; | |
3343 | queue_work(workq, &adap->tid_release_task); | |
3344 | } | |
3345 | spin_unlock_bh(&adap->tid_release_lock); | |
3346 | } | |
3347 | ||
3348 | /* | |
3349 | * Process the list of pending TID release requests. | |
3350 | */ | |
3351 | static void process_tid_release_list(struct work_struct *work) | |
3352 | { | |
3353 | struct sk_buff *skb; | |
3354 | struct adapter *adap; | |
3355 | ||
3356 | adap = container_of(work, struct adapter, tid_release_task); | |
3357 | ||
3358 | spin_lock_bh(&adap->tid_release_lock); | |
3359 | while (adap->tid_release_head) { | |
3360 | void **p = adap->tid_release_head; | |
3361 | unsigned int chan = (uintptr_t)p & 3; | |
3362 | p = (void *)p - chan; | |
3363 | ||
3364 | adap->tid_release_head = *p; | |
3365 | *p = NULL; | |
3366 | spin_unlock_bh(&adap->tid_release_lock); | |
3367 | ||
3368 | while (!(skb = alloc_skb(sizeof(struct cpl_tid_release), | |
3369 | GFP_KERNEL))) | |
3370 | schedule_timeout_uninterruptible(1); | |
3371 | ||
3372 | mk_tid_release(skb, chan, p - adap->tids.tid_tab); | |
3373 | t4_ofld_send(adap, skb); | |
3374 | spin_lock_bh(&adap->tid_release_lock); | |
3375 | } | |
3376 | adap->tid_release_task_busy = false; | |
3377 | spin_unlock_bh(&adap->tid_release_lock); | |
3378 | } | |
3379 | ||
3380 | /* | |
3381 | * Release a TID and inform HW. If we are unable to allocate the release | |
3382 | * message we defer to a work queue. | |
3383 | */ | |
3384 | void cxgb4_remove_tid(struct tid_info *t, unsigned int chan, unsigned int tid) | |
3385 | { | |
3386 | void *old; | |
3387 | struct sk_buff *skb; | |
3388 | struct adapter *adap = container_of(t, struct adapter, tids); | |
3389 | ||
3390 | old = t->tid_tab[tid]; | |
3391 | skb = alloc_skb(sizeof(struct cpl_tid_release), GFP_ATOMIC); | |
3392 | if (likely(skb)) { | |
3393 | t->tid_tab[tid] = NULL; | |
3394 | mk_tid_release(skb, chan, tid); | |
3395 | t4_ofld_send(adap, skb); | |
3396 | } else | |
3397 | cxgb4_queue_tid_release(t, chan, tid); | |
3398 | if (old) | |
3399 | atomic_dec(&t->tids_in_use); | |
3400 | } | |
3401 | EXPORT_SYMBOL(cxgb4_remove_tid); | |
3402 | ||
3403 | /* | |
3404 | * Allocate and initialize the TID tables. Returns 0 on success. | |
3405 | */ | |
3406 | static int tid_init(struct tid_info *t) | |
3407 | { | |
3408 | size_t size; | |
3409 | unsigned int stid_bmap_size; | |
3410 | unsigned int natids = t->natids; | |
3411 | struct adapter *adap = container_of(t, struct adapter, tids); | |
3412 | ||
3413 | stid_bmap_size = BITS_TO_LONGS(t->nstids + t->nsftids); | |
3414 | size = t->ntids * sizeof(*t->tid_tab) + | |
3415 | natids * sizeof(*t->atid_tab) + | |
3416 | t->nstids * sizeof(*t->stid_tab) + | |
3417 | t->nsftids * sizeof(*t->stid_tab) + | |
3418 | stid_bmap_size * sizeof(long) + | |
3419 | t->nftids * sizeof(*t->ftid_tab) + | |
3420 | t->nsftids * sizeof(*t->ftid_tab); | |
3421 | ||
3422 | t->tid_tab = t4_alloc_mem(size); | |
3423 | if (!t->tid_tab) | |
3424 | return -ENOMEM; | |
3425 | ||
3426 | t->atid_tab = (union aopen_entry *)&t->tid_tab[t->ntids]; | |
3427 | t->stid_tab = (struct serv_entry *)&t->atid_tab[natids]; | |
3428 | t->stid_bmap = (unsigned long *)&t->stid_tab[t->nstids + t->nsftids]; | |
3429 | t->ftid_tab = (struct filter_entry *)&t->stid_bmap[stid_bmap_size]; | |
3430 | spin_lock_init(&t->stid_lock); | |
3431 | spin_lock_init(&t->atid_lock); | |
3432 | ||
3433 | t->stids_in_use = 0; | |
3434 | t->afree = NULL; | |
3435 | t->atids_in_use = 0; | |
3436 | atomic_set(&t->tids_in_use, 0); | |
3437 | ||
3438 | /* Setup the free list for atid_tab and clear the stid bitmap. */ | |
3439 | if (natids) { | |
3440 | while (--natids) | |
3441 | t->atid_tab[natids - 1].next = &t->atid_tab[natids]; | |
3442 | t->afree = t->atid_tab; | |
3443 | } | |
3444 | bitmap_zero(t->stid_bmap, t->nstids + t->nsftids); | |
3445 | /* Reserve stid 0 for T4/T5 adapters */ | |
3446 | if (!t->stid_base && | |
3447 | (is_t4(adap->params.chip) || is_t5(adap->params.chip))) | |
3448 | __set_bit(0, t->stid_bmap); | |
3449 | ||
3450 | return 0; | |
3451 | } | |
3452 | ||
3453 | int cxgb4_clip_get(const struct net_device *dev, | |
3454 | const struct in6_addr *lip) | |
3455 | { | |
3456 | struct adapter *adap; | |
3457 | struct fw_clip_cmd c; | |
3458 | ||
3459 | adap = netdev2adap(dev); | |
3460 | memset(&c, 0, sizeof(c)); | |
3461 | c.op_to_write = htonl(FW_CMD_OP(FW_CLIP_CMD) | | |
3462 | FW_CMD_REQUEST | FW_CMD_WRITE); | |
3463 | c.alloc_to_len16 = htonl(F_FW_CLIP_CMD_ALLOC | FW_LEN16(c)); | |
3464 | c.ip_hi = *(__be64 *)(lip->s6_addr); | |
3465 | c.ip_lo = *(__be64 *)(lip->s6_addr + 8); | |
3466 | return t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c, false); | |
3467 | } | |
3468 | EXPORT_SYMBOL(cxgb4_clip_get); | |
3469 | ||
3470 | int cxgb4_clip_release(const struct net_device *dev, | |
3471 | const struct in6_addr *lip) | |
3472 | { | |
3473 | struct adapter *adap; | |
3474 | struct fw_clip_cmd c; | |
3475 | ||
3476 | adap = netdev2adap(dev); | |
3477 | memset(&c, 0, sizeof(c)); | |
3478 | c.op_to_write = htonl(FW_CMD_OP(FW_CLIP_CMD) | | |
3479 | FW_CMD_REQUEST | FW_CMD_READ); | |
3480 | c.alloc_to_len16 = htonl(F_FW_CLIP_CMD_FREE | FW_LEN16(c)); | |
3481 | c.ip_hi = *(__be64 *)(lip->s6_addr); | |
3482 | c.ip_lo = *(__be64 *)(lip->s6_addr + 8); | |
3483 | return t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c, false); | |
3484 | } | |
3485 | EXPORT_SYMBOL(cxgb4_clip_release); | |
3486 | ||
3487 | /** | |
3488 | * cxgb4_create_server - create an IP server | |
3489 | * @dev: the device | |
3490 | * @stid: the server TID | |
3491 | * @sip: local IP address to bind server to | |
3492 | * @sport: the server's TCP port | |
3493 | * @queue: queue to direct messages from this server to | |
3494 | * | |
3495 | * Create an IP server for the given port and address. | |
3496 | * Returns <0 on error and one of the %NET_XMIT_* values on success. | |
3497 | */ | |
3498 | int cxgb4_create_server(const struct net_device *dev, unsigned int stid, | |
3499 | __be32 sip, __be16 sport, __be16 vlan, | |
3500 | unsigned int queue) | |
3501 | { | |
3502 | unsigned int chan; | |
3503 | struct sk_buff *skb; | |
3504 | struct adapter *adap; | |
3505 | struct cpl_pass_open_req *req; | |
3506 | int ret; | |
3507 | ||
3508 | skb = alloc_skb(sizeof(*req), GFP_KERNEL); | |
3509 | if (!skb) | |
3510 | return -ENOMEM; | |
3511 | ||
3512 | adap = netdev2adap(dev); | |
3513 | req = (struct cpl_pass_open_req *)__skb_put(skb, sizeof(*req)); | |
3514 | INIT_TP_WR(req, 0); | |
3515 | OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_PASS_OPEN_REQ, stid)); | |
3516 | req->local_port = sport; | |
3517 | req->peer_port = htons(0); | |
3518 | req->local_ip = sip; | |
3519 | req->peer_ip = htonl(0); | |
3520 | chan = rxq_to_chan(&adap->sge, queue); | |
3521 | req->opt0 = cpu_to_be64(TX_CHAN(chan)); | |
3522 | req->opt1 = cpu_to_be64(CONN_POLICY_ASK | | |
3523 | SYN_RSS_ENABLE | SYN_RSS_QUEUE(queue)); | |
3524 | ret = t4_mgmt_tx(adap, skb); | |
3525 | return net_xmit_eval(ret); | |
3526 | } | |
3527 | EXPORT_SYMBOL(cxgb4_create_server); | |
3528 | ||
3529 | /* cxgb4_create_server6 - create an IPv6 server | |
3530 | * @dev: the device | |
3531 | * @stid: the server TID | |
3532 | * @sip: local IPv6 address to bind server to | |
3533 | * @sport: the server's TCP port | |
3534 | * @queue: queue to direct messages from this server to | |
3535 | * | |
3536 | * Create an IPv6 server for the given port and address. | |
3537 | * Returns <0 on error and one of the %NET_XMIT_* values on success. | |
3538 | */ | |
3539 | int cxgb4_create_server6(const struct net_device *dev, unsigned int stid, | |
3540 | const struct in6_addr *sip, __be16 sport, | |
3541 | unsigned int queue) | |
3542 | { | |
3543 | unsigned int chan; | |
3544 | struct sk_buff *skb; | |
3545 | struct adapter *adap; | |
3546 | struct cpl_pass_open_req6 *req; | |
3547 | int ret; | |
3548 | ||
3549 | skb = alloc_skb(sizeof(*req), GFP_KERNEL); | |
3550 | if (!skb) | |
3551 | return -ENOMEM; | |
3552 | ||
3553 | adap = netdev2adap(dev); | |
3554 | req = (struct cpl_pass_open_req6 *)__skb_put(skb, sizeof(*req)); | |
3555 | INIT_TP_WR(req, 0); | |
3556 | OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_PASS_OPEN_REQ6, stid)); | |
3557 | req->local_port = sport; | |
3558 | req->peer_port = htons(0); | |
3559 | req->local_ip_hi = *(__be64 *)(sip->s6_addr); | |
3560 | req->local_ip_lo = *(__be64 *)(sip->s6_addr + 8); | |
3561 | req->peer_ip_hi = cpu_to_be64(0); | |
3562 | req->peer_ip_lo = cpu_to_be64(0); | |
3563 | chan = rxq_to_chan(&adap->sge, queue); | |
3564 | req->opt0 = cpu_to_be64(TX_CHAN(chan)); | |
3565 | req->opt1 = cpu_to_be64(CONN_POLICY_ASK | | |
3566 | SYN_RSS_ENABLE | SYN_RSS_QUEUE(queue)); | |
3567 | ret = t4_mgmt_tx(adap, skb); | |
3568 | return net_xmit_eval(ret); | |
3569 | } | |
3570 | EXPORT_SYMBOL(cxgb4_create_server6); | |
3571 | ||
3572 | int cxgb4_remove_server(const struct net_device *dev, unsigned int stid, | |
3573 | unsigned int queue, bool ipv6) | |
3574 | { | |
3575 | struct sk_buff *skb; | |
3576 | struct adapter *adap; | |
3577 | struct cpl_close_listsvr_req *req; | |
3578 | int ret; | |
3579 | ||
3580 | adap = netdev2adap(dev); | |
3581 | ||
3582 | skb = alloc_skb(sizeof(*req), GFP_KERNEL); | |
3583 | if (!skb) | |
3584 | return -ENOMEM; | |
3585 | ||
3586 | req = (struct cpl_close_listsvr_req *)__skb_put(skb, sizeof(*req)); | |
3587 | INIT_TP_WR(req, 0); | |
3588 | OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_CLOSE_LISTSRV_REQ, stid)); | |
3589 | req->reply_ctrl = htons(NO_REPLY(0) | (ipv6 ? LISTSVR_IPV6(1) : | |
3590 | LISTSVR_IPV6(0)) | QUEUENO(queue)); | |
3591 | ret = t4_mgmt_tx(adap, skb); | |
3592 | return net_xmit_eval(ret); | |
3593 | } | |
3594 | EXPORT_SYMBOL(cxgb4_remove_server); | |
3595 | ||
3596 | /** | |
3597 | * cxgb4_best_mtu - find the entry in the MTU table closest to an MTU | |
3598 | * @mtus: the HW MTU table | |
3599 | * @mtu: the target MTU | |
3600 | * @idx: index of selected entry in the MTU table | |
3601 | * | |
3602 | * Returns the index and the value in the HW MTU table that is closest to | |
3603 | * but does not exceed @mtu, unless @mtu is smaller than any value in the | |
3604 | * table, in which case that smallest available value is selected. | |
3605 | */ | |
3606 | unsigned int cxgb4_best_mtu(const unsigned short *mtus, unsigned short mtu, | |
3607 | unsigned int *idx) | |
3608 | { | |
3609 | unsigned int i = 0; | |
3610 | ||
3611 | while (i < NMTUS - 1 && mtus[i + 1] <= mtu) | |
3612 | ++i; | |
3613 | if (idx) | |
3614 | *idx = i; | |
3615 | return mtus[i]; | |
3616 | } | |
3617 | EXPORT_SYMBOL(cxgb4_best_mtu); | |
3618 | ||
3619 | /** | |
3620 | * cxgb4_best_aligned_mtu - find best MTU, [hopefully] data size aligned | |
3621 | * @mtus: the HW MTU table | |
3622 | * @header_size: Header Size | |
3623 | * @data_size_max: maximum Data Segment Size | |
3624 | * @data_size_align: desired Data Segment Size Alignment (2^N) | |
3625 | * @mtu_idxp: HW MTU Table Index return value pointer (possibly NULL) | |
3626 | * | |
3627 | * Similar to cxgb4_best_mtu() but instead of searching the Hardware | |
3628 | * MTU Table based solely on a Maximum MTU parameter, we break that | |
3629 | * parameter up into a Header Size and Maximum Data Segment Size, and | |
3630 | * provide a desired Data Segment Size Alignment. If we find an MTU in | |
3631 | * the Hardware MTU Table which will result in a Data Segment Size with | |
3632 | * the requested alignment _and_ that MTU isn't "too far" from the | |
3633 | * closest MTU, then we'll return that rather than the closest MTU. | |
3634 | */ | |
3635 | unsigned int cxgb4_best_aligned_mtu(const unsigned short *mtus, | |
3636 | unsigned short header_size, | |
3637 | unsigned short data_size_max, | |
3638 | unsigned short data_size_align, | |
3639 | unsigned int *mtu_idxp) | |
3640 | { | |
3641 | unsigned short max_mtu = header_size + data_size_max; | |
3642 | unsigned short data_size_align_mask = data_size_align - 1; | |
3643 | int mtu_idx, aligned_mtu_idx; | |
3644 | ||
3645 | /* Scan the MTU Table till we find an MTU which is larger than our | |
3646 | * Maximum MTU or we reach the end of the table. Along the way, | |
3647 | * record the last MTU found, if any, which will result in a Data | |
3648 | * Segment Length matching the requested alignment. | |
3649 | */ | |
3650 | for (mtu_idx = 0, aligned_mtu_idx = -1; mtu_idx < NMTUS; mtu_idx++) { | |
3651 | unsigned short data_size = mtus[mtu_idx] - header_size; | |
3652 | ||
3653 | /* If this MTU minus the Header Size would result in a | |
3654 | * Data Segment Size of the desired alignment, remember it. | |
3655 | */ | |
3656 | if ((data_size & data_size_align_mask) == 0) | |
3657 | aligned_mtu_idx = mtu_idx; | |
3658 | ||
3659 | /* If we're not at the end of the Hardware MTU Table and the | |
3660 | * next element is larger than our Maximum MTU, drop out of | |
3661 | * the loop. | |
3662 | */ | |
3663 | if (mtu_idx+1 < NMTUS && mtus[mtu_idx+1] > max_mtu) | |
3664 | break; | |
3665 | } | |
3666 | ||
3667 | /* If we fell out of the loop because we ran to the end of the table, | |
3668 | * then we just have to use the last [largest] entry. | |
3669 | */ | |
3670 | if (mtu_idx == NMTUS) | |
3671 | mtu_idx--; | |
3672 | ||
3673 | /* If we found an MTU which resulted in the requested Data Segment | |
3674 | * Length alignment and that's "not far" from the largest MTU which is | |
3675 | * less than or equal to the maximum MTU, then use that. | |
3676 | */ | |
3677 | if (aligned_mtu_idx >= 0 && | |
3678 | mtu_idx - aligned_mtu_idx <= 1) | |
3679 | mtu_idx = aligned_mtu_idx; | |
3680 | ||
3681 | /* If the caller has passed in an MTU Index pointer, pass the | |
3682 | * MTU Index back. Return the MTU value. | |
3683 | */ | |
3684 | if (mtu_idxp) | |
3685 | *mtu_idxp = mtu_idx; | |
3686 | return mtus[mtu_idx]; | |
3687 | } | |
3688 | EXPORT_SYMBOL(cxgb4_best_aligned_mtu); | |
3689 | ||
3690 | /** | |
3691 | * cxgb4_port_chan - get the HW channel of a port | |
3692 | * @dev: the net device for the port | |
3693 | * | |
3694 | * Return the HW Tx channel of the given port. | |
3695 | */ | |
3696 | unsigned int cxgb4_port_chan(const struct net_device *dev) | |
3697 | { | |
3698 | return netdev2pinfo(dev)->tx_chan; | |
3699 | } | |
3700 | EXPORT_SYMBOL(cxgb4_port_chan); | |
3701 | ||
3702 | unsigned int cxgb4_dbfifo_count(const struct net_device *dev, int lpfifo) | |
3703 | { | |
3704 | struct adapter *adap = netdev2adap(dev); | |
3705 | u32 v1, v2, lp_count, hp_count; | |
3706 | ||
3707 | v1 = t4_read_reg(adap, A_SGE_DBFIFO_STATUS); | |
3708 | v2 = t4_read_reg(adap, SGE_DBFIFO_STATUS2); | |
3709 | if (is_t4(adap->params.chip)) { | |
3710 | lp_count = G_LP_COUNT(v1); | |
3711 | hp_count = G_HP_COUNT(v1); | |
3712 | } else { | |
3713 | lp_count = G_LP_COUNT_T5(v1); | |
3714 | hp_count = G_HP_COUNT_T5(v2); | |
3715 | } | |
3716 | return lpfifo ? lp_count : hp_count; | |
3717 | } | |
3718 | EXPORT_SYMBOL(cxgb4_dbfifo_count); | |
3719 | ||
3720 | /** | |
3721 | * cxgb4_port_viid - get the VI id of a port | |
3722 | * @dev: the net device for the port | |
3723 | * | |
3724 | * Return the VI id of the given port. | |
3725 | */ | |
3726 | unsigned int cxgb4_port_viid(const struct net_device *dev) | |
3727 | { | |
3728 | return netdev2pinfo(dev)->viid; | |
3729 | } | |
3730 | EXPORT_SYMBOL(cxgb4_port_viid); | |
3731 | ||
3732 | /** | |
3733 | * cxgb4_port_idx - get the index of a port | |
3734 | * @dev: the net device for the port | |
3735 | * | |
3736 | * Return the index of the given port. | |
3737 | */ | |
3738 | unsigned int cxgb4_port_idx(const struct net_device *dev) | |
3739 | { | |
3740 | return netdev2pinfo(dev)->port_id; | |
3741 | } | |
3742 | EXPORT_SYMBOL(cxgb4_port_idx); | |
3743 | ||
3744 | void cxgb4_get_tcp_stats(struct pci_dev *pdev, struct tp_tcp_stats *v4, | |
3745 | struct tp_tcp_stats *v6) | |
3746 | { | |
3747 | struct adapter *adap = pci_get_drvdata(pdev); | |
3748 | ||
3749 | spin_lock(&adap->stats_lock); | |
3750 | t4_tp_get_tcp_stats(adap, v4, v6); | |
3751 | spin_unlock(&adap->stats_lock); | |
3752 | } | |
3753 | EXPORT_SYMBOL(cxgb4_get_tcp_stats); | |
3754 | ||
3755 | void cxgb4_iscsi_init(struct net_device *dev, unsigned int tag_mask, | |
3756 | const unsigned int *pgsz_order) | |
3757 | { | |
3758 | struct adapter *adap = netdev2adap(dev); | |
3759 | ||
3760 | t4_write_reg(adap, ULP_RX_ISCSI_TAGMASK, tag_mask); | |
3761 | t4_write_reg(adap, ULP_RX_ISCSI_PSZ, HPZ0(pgsz_order[0]) | | |
3762 | HPZ1(pgsz_order[1]) | HPZ2(pgsz_order[2]) | | |
3763 | HPZ3(pgsz_order[3])); | |
3764 | } | |
3765 | EXPORT_SYMBOL(cxgb4_iscsi_init); | |
3766 | ||
3767 | int cxgb4_flush_eq_cache(struct net_device *dev) | |
3768 | { | |
3769 | struct adapter *adap = netdev2adap(dev); | |
3770 | int ret; | |
3771 | ||
3772 | ret = t4_fwaddrspace_write(adap, adap->mbox, | |
3773 | 0xe1000000 + A_SGE_CTXT_CMD, 0x20000000); | |
3774 | return ret; | |
3775 | } | |
3776 | EXPORT_SYMBOL(cxgb4_flush_eq_cache); | |
3777 | ||
3778 | static int read_eq_indices(struct adapter *adap, u16 qid, u16 *pidx, u16 *cidx) | |
3779 | { | |
3780 | u32 addr = t4_read_reg(adap, A_SGE_DBQ_CTXT_BADDR) + 24 * qid + 8; | |
3781 | __be64 indices; | |
3782 | int ret; | |
3783 | ||
3784 | spin_lock(&adap->win0_lock); | |
3785 | ret = t4_memory_rw(adap, 0, MEM_EDC0, addr, | |
3786 | sizeof(indices), (__be32 *)&indices, | |
3787 | T4_MEMORY_READ); | |
3788 | spin_unlock(&adap->win0_lock); | |
3789 | if (!ret) { | |
3790 | *cidx = (be64_to_cpu(indices) >> 25) & 0xffff; | |
3791 | *pidx = (be64_to_cpu(indices) >> 9) & 0xffff; | |
3792 | } | |
3793 | return ret; | |
3794 | } | |
3795 | ||
3796 | int cxgb4_sync_txq_pidx(struct net_device *dev, u16 qid, u16 pidx, | |
3797 | u16 size) | |
3798 | { | |
3799 | struct adapter *adap = netdev2adap(dev); | |
3800 | u16 hw_pidx, hw_cidx; | |
3801 | int ret; | |
3802 | ||
3803 | ret = read_eq_indices(adap, qid, &hw_pidx, &hw_cidx); | |
3804 | if (ret) | |
3805 | goto out; | |
3806 | ||
3807 | if (pidx != hw_pidx) { | |
3808 | u16 delta; | |
3809 | ||
3810 | if (pidx >= hw_pidx) | |
3811 | delta = pidx - hw_pidx; | |
3812 | else | |
3813 | delta = size - hw_pidx + pidx; | |
3814 | wmb(); | |
3815 | t4_write_reg(adap, MYPF_REG(SGE_PF_KDOORBELL), | |
3816 | QID(qid) | PIDX(delta)); | |
3817 | } | |
3818 | out: | |
3819 | return ret; | |
3820 | } | |
3821 | EXPORT_SYMBOL(cxgb4_sync_txq_pidx); | |
3822 | ||
3823 | void cxgb4_disable_db_coalescing(struct net_device *dev) | |
3824 | { | |
3825 | struct adapter *adap; | |
3826 | ||
3827 | adap = netdev2adap(dev); | |
3828 | t4_set_reg_field(adap, A_SGE_DOORBELL_CONTROL, F_NOCOALESCE, | |
3829 | F_NOCOALESCE); | |
3830 | } | |
3831 | EXPORT_SYMBOL(cxgb4_disable_db_coalescing); | |
3832 | ||
3833 | void cxgb4_enable_db_coalescing(struct net_device *dev) | |
3834 | { | |
3835 | struct adapter *adap; | |
3836 | ||
3837 | adap = netdev2adap(dev); | |
3838 | t4_set_reg_field(adap, A_SGE_DOORBELL_CONTROL, F_NOCOALESCE, 0); | |
3839 | } | |
3840 | EXPORT_SYMBOL(cxgb4_enable_db_coalescing); | |
3841 | ||
3842 | int cxgb4_read_tpte(struct net_device *dev, u32 stag, __be32 *tpte) | |
3843 | { | |
3844 | struct adapter *adap; | |
3845 | u32 offset, memtype, memaddr; | |
3846 | u32 edc0_size, edc1_size, mc0_size, mc1_size; | |
3847 | u32 edc0_end, edc1_end, mc0_end, mc1_end; | |
3848 | int ret; | |
3849 | ||
3850 | adap = netdev2adap(dev); | |
3851 | ||
3852 | offset = ((stag >> 8) * 32) + adap->vres.stag.start; | |
3853 | ||
3854 | /* Figure out where the offset lands in the Memory Type/Address scheme. | |
3855 | * This code assumes that the memory is laid out starting at offset 0 | |
3856 | * with no breaks as: EDC0, EDC1, MC0, MC1. All cards have both EDC0 | |
3857 | * and EDC1. Some cards will have neither MC0 nor MC1, most cards have | |
3858 | * MC0, and some have both MC0 and MC1. | |
3859 | */ | |
3860 | edc0_size = EDRAM_SIZE_GET(t4_read_reg(adap, MA_EDRAM0_BAR)) << 20; | |
3861 | edc1_size = EDRAM_SIZE_GET(t4_read_reg(adap, MA_EDRAM1_BAR)) << 20; | |
3862 | mc0_size = EXT_MEM_SIZE_GET(t4_read_reg(adap, MA_EXT_MEMORY_BAR)) << 20; | |
3863 | ||
3864 | edc0_end = edc0_size; | |
3865 | edc1_end = edc0_end + edc1_size; | |
3866 | mc0_end = edc1_end + mc0_size; | |
3867 | ||
3868 | if (offset < edc0_end) { | |
3869 | memtype = MEM_EDC0; | |
3870 | memaddr = offset; | |
3871 | } else if (offset < edc1_end) { | |
3872 | memtype = MEM_EDC1; | |
3873 | memaddr = offset - edc0_end; | |
3874 | } else { | |
3875 | if (offset < mc0_end) { | |
3876 | memtype = MEM_MC0; | |
3877 | memaddr = offset - edc1_end; | |
3878 | } else if (is_t4(adap->params.chip)) { | |
3879 | /* T4 only has a single memory channel */ | |
3880 | goto err; | |
3881 | } else { | |
3882 | mc1_size = EXT_MEM_SIZE_GET( | |
3883 | t4_read_reg(adap, | |
3884 | MA_EXT_MEMORY1_BAR)) << 20; | |
3885 | mc1_end = mc0_end + mc1_size; | |
3886 | if (offset < mc1_end) { | |
3887 | memtype = MEM_MC1; | |
3888 | memaddr = offset - mc0_end; | |
3889 | } else { | |
3890 | /* offset beyond the end of any memory */ | |
3891 | goto err; | |
3892 | } | |
3893 | } | |
3894 | } | |
3895 | ||
3896 | spin_lock(&adap->win0_lock); | |
3897 | ret = t4_memory_rw(adap, 0, memtype, memaddr, 32, tpte, T4_MEMORY_READ); | |
3898 | spin_unlock(&adap->win0_lock); | |
3899 | return ret; | |
3900 | ||
3901 | err: | |
3902 | dev_err(adap->pdev_dev, "stag %#x, offset %#x out of range\n", | |
3903 | stag, offset); | |
3904 | return -EINVAL; | |
3905 | } | |
3906 | EXPORT_SYMBOL(cxgb4_read_tpte); | |
3907 | ||
3908 | u64 cxgb4_read_sge_timestamp(struct net_device *dev) | |
3909 | { | |
3910 | u32 hi, lo; | |
3911 | struct adapter *adap; | |
3912 | ||
3913 | adap = netdev2adap(dev); | |
3914 | lo = t4_read_reg(adap, SGE_TIMESTAMP_LO); | |
3915 | hi = GET_TSVAL(t4_read_reg(adap, SGE_TIMESTAMP_HI)); | |
3916 | ||
3917 | return ((u64)hi << 32) | (u64)lo; | |
3918 | } | |
3919 | EXPORT_SYMBOL(cxgb4_read_sge_timestamp); | |
3920 | ||
3921 | static struct pci_driver cxgb4_driver; | |
3922 | ||
3923 | static void check_neigh_update(struct neighbour *neigh) | |
3924 | { | |
3925 | const struct device *parent; | |
3926 | const struct net_device *netdev = neigh->dev; | |
3927 | ||
3928 | if (netdev->priv_flags & IFF_802_1Q_VLAN) | |
3929 | netdev = vlan_dev_real_dev(netdev); | |
3930 | parent = netdev->dev.parent; | |
3931 | if (parent && parent->driver == &cxgb4_driver.driver) | |
3932 | t4_l2t_update(dev_get_drvdata(parent), neigh); | |
3933 | } | |
3934 | ||
3935 | static int netevent_cb(struct notifier_block *nb, unsigned long event, | |
3936 | void *data) | |
3937 | { | |
3938 | switch (event) { | |
3939 | case NETEVENT_NEIGH_UPDATE: | |
3940 | check_neigh_update(data); | |
3941 | break; | |
3942 | case NETEVENT_REDIRECT: | |
3943 | default: | |
3944 | break; | |
3945 | } | |
3946 | return 0; | |
3947 | } | |
3948 | ||
3949 | static bool netevent_registered; | |
3950 | static struct notifier_block cxgb4_netevent_nb = { | |
3951 | .notifier_call = netevent_cb | |
3952 | }; | |
3953 | ||
3954 | static void drain_db_fifo(struct adapter *adap, int usecs) | |
3955 | { | |
3956 | u32 v1, v2, lp_count, hp_count; | |
3957 | ||
3958 | do { | |
3959 | v1 = t4_read_reg(adap, A_SGE_DBFIFO_STATUS); | |
3960 | v2 = t4_read_reg(adap, SGE_DBFIFO_STATUS2); | |
3961 | if (is_t4(adap->params.chip)) { | |
3962 | lp_count = G_LP_COUNT(v1); | |
3963 | hp_count = G_HP_COUNT(v1); | |
3964 | } else { | |
3965 | lp_count = G_LP_COUNT_T5(v1); | |
3966 | hp_count = G_HP_COUNT_T5(v2); | |
3967 | } | |
3968 | ||
3969 | if (lp_count == 0 && hp_count == 0) | |
3970 | break; | |
3971 | set_current_state(TASK_UNINTERRUPTIBLE); | |
3972 | schedule_timeout(usecs_to_jiffies(usecs)); | |
3973 | } while (1); | |
3974 | } | |
3975 | ||
3976 | static void disable_txq_db(struct sge_txq *q) | |
3977 | { | |
3978 | unsigned long flags; | |
3979 | ||
3980 | spin_lock_irqsave(&q->db_lock, flags); | |
3981 | q->db_disabled = 1; | |
3982 | spin_unlock_irqrestore(&q->db_lock, flags); | |
3983 | } | |
3984 | ||
3985 | static void enable_txq_db(struct adapter *adap, struct sge_txq *q) | |
3986 | { | |
3987 | spin_lock_irq(&q->db_lock); | |
3988 | if (q->db_pidx_inc) { | |
3989 | /* Make sure that all writes to the TX descriptors | |
3990 | * are committed before we tell HW about them. | |
3991 | */ | |
3992 | wmb(); | |
3993 | t4_write_reg(adap, MYPF_REG(SGE_PF_KDOORBELL), | |
3994 | QID(q->cntxt_id) | PIDX(q->db_pidx_inc)); | |
3995 | q->db_pidx_inc = 0; | |
3996 | } | |
3997 | q->db_disabled = 0; | |
3998 | spin_unlock_irq(&q->db_lock); | |
3999 | } | |
4000 | ||
4001 | static void disable_dbs(struct adapter *adap) | |
4002 | { | |
4003 | int i; | |
4004 | ||
4005 | for_each_ethrxq(&adap->sge, i) | |
4006 | disable_txq_db(&adap->sge.ethtxq[i].q); | |
4007 | for_each_ofldrxq(&adap->sge, i) | |
4008 | disable_txq_db(&adap->sge.ofldtxq[i].q); | |
4009 | for_each_port(adap, i) | |
4010 | disable_txq_db(&adap->sge.ctrlq[i].q); | |
4011 | } | |
4012 | ||
4013 | static void enable_dbs(struct adapter *adap) | |
4014 | { | |
4015 | int i; | |
4016 | ||
4017 | for_each_ethrxq(&adap->sge, i) | |
4018 | enable_txq_db(adap, &adap->sge.ethtxq[i].q); | |
4019 | for_each_ofldrxq(&adap->sge, i) | |
4020 | enable_txq_db(adap, &adap->sge.ofldtxq[i].q); | |
4021 | for_each_port(adap, i) | |
4022 | enable_txq_db(adap, &adap->sge.ctrlq[i].q); | |
4023 | } | |
4024 | ||
4025 | static void notify_rdma_uld(struct adapter *adap, enum cxgb4_control cmd) | |
4026 | { | |
4027 | if (adap->uld_handle[CXGB4_ULD_RDMA]) | |
4028 | ulds[CXGB4_ULD_RDMA].control(adap->uld_handle[CXGB4_ULD_RDMA], | |
4029 | cmd); | |
4030 | } | |
4031 | ||
4032 | static void process_db_full(struct work_struct *work) | |
4033 | { | |
4034 | struct adapter *adap; | |
4035 | ||
4036 | adap = container_of(work, struct adapter, db_full_task); | |
4037 | ||
4038 | drain_db_fifo(adap, dbfifo_drain_delay); | |
4039 | enable_dbs(adap); | |
4040 | notify_rdma_uld(adap, CXGB4_CONTROL_DB_EMPTY); | |
4041 | t4_set_reg_field(adap, SGE_INT_ENABLE3, | |
4042 | DBFIFO_HP_INT | DBFIFO_LP_INT, | |
4043 | DBFIFO_HP_INT | DBFIFO_LP_INT); | |
4044 | } | |
4045 | ||
4046 | static void sync_txq_pidx(struct adapter *adap, struct sge_txq *q) | |
4047 | { | |
4048 | u16 hw_pidx, hw_cidx; | |
4049 | int ret; | |
4050 | ||
4051 | spin_lock_irq(&q->db_lock); | |
4052 | ret = read_eq_indices(adap, (u16)q->cntxt_id, &hw_pidx, &hw_cidx); | |
4053 | if (ret) | |
4054 | goto out; | |
4055 | if (q->db_pidx != hw_pidx) { | |
4056 | u16 delta; | |
4057 | ||
4058 | if (q->db_pidx >= hw_pidx) | |
4059 | delta = q->db_pidx - hw_pidx; | |
4060 | else | |
4061 | delta = q->size - hw_pidx + q->db_pidx; | |
4062 | wmb(); | |
4063 | t4_write_reg(adap, MYPF_REG(SGE_PF_KDOORBELL), | |
4064 | QID(q->cntxt_id) | PIDX(delta)); | |
4065 | } | |
4066 | out: | |
4067 | q->db_disabled = 0; | |
4068 | q->db_pidx_inc = 0; | |
4069 | spin_unlock_irq(&q->db_lock); | |
4070 | if (ret) | |
4071 | CH_WARN(adap, "DB drop recovery failed.\n"); | |
4072 | } | |
4073 | static void recover_all_queues(struct adapter *adap) | |
4074 | { | |
4075 | int i; | |
4076 | ||
4077 | for_each_ethrxq(&adap->sge, i) | |
4078 | sync_txq_pidx(adap, &adap->sge.ethtxq[i].q); | |
4079 | for_each_ofldrxq(&adap->sge, i) | |
4080 | sync_txq_pidx(adap, &adap->sge.ofldtxq[i].q); | |
4081 | for_each_port(adap, i) | |
4082 | sync_txq_pidx(adap, &adap->sge.ctrlq[i].q); | |
4083 | } | |
4084 | ||
4085 | static void process_db_drop(struct work_struct *work) | |
4086 | { | |
4087 | struct adapter *adap; | |
4088 | ||
4089 | adap = container_of(work, struct adapter, db_drop_task); | |
4090 | ||
4091 | if (is_t4(adap->params.chip)) { | |
4092 | drain_db_fifo(adap, dbfifo_drain_delay); | |
4093 | notify_rdma_uld(adap, CXGB4_CONTROL_DB_DROP); | |
4094 | drain_db_fifo(adap, dbfifo_drain_delay); | |
4095 | recover_all_queues(adap); | |
4096 | drain_db_fifo(adap, dbfifo_drain_delay); | |
4097 | enable_dbs(adap); | |
4098 | notify_rdma_uld(adap, CXGB4_CONTROL_DB_EMPTY); | |
4099 | } else { | |
4100 | u32 dropped_db = t4_read_reg(adap, 0x010ac); | |
4101 | u16 qid = (dropped_db >> 15) & 0x1ffff; | |
4102 | u16 pidx_inc = dropped_db & 0x1fff; | |
4103 | unsigned int s_qpp; | |
4104 | unsigned short udb_density; | |
4105 | unsigned long qpshift; | |
4106 | int page; | |
4107 | u32 udb; | |
4108 | ||
4109 | dev_warn(adap->pdev_dev, | |
4110 | "Dropped DB 0x%x qid %d bar2 %d coalesce %d pidx %d\n", | |
4111 | dropped_db, qid, | |
4112 | (dropped_db >> 14) & 1, | |
4113 | (dropped_db >> 13) & 1, | |
4114 | pidx_inc); | |
4115 | ||
4116 | drain_db_fifo(adap, 1); | |
4117 | ||
4118 | s_qpp = QUEUESPERPAGEPF1 * adap->fn; | |
4119 | udb_density = 1 << QUEUESPERPAGEPF0_GET(t4_read_reg(adap, | |
4120 | SGE_EGRESS_QUEUES_PER_PAGE_PF) >> s_qpp); | |
4121 | qpshift = PAGE_SHIFT - ilog2(udb_density); | |
4122 | udb = qid << qpshift; | |
4123 | udb &= PAGE_MASK; | |
4124 | page = udb / PAGE_SIZE; | |
4125 | udb += (qid - (page * udb_density)) * 128; | |
4126 | ||
4127 | writel(PIDX(pidx_inc), adap->bar2 + udb + 8); | |
4128 | ||
4129 | /* Re-enable BAR2 WC */ | |
4130 | t4_set_reg_field(adap, 0x10b0, 1<<15, 1<<15); | |
4131 | } | |
4132 | ||
4133 | t4_set_reg_field(adap, A_SGE_DOORBELL_CONTROL, F_DROPPED_DB, 0); | |
4134 | } | |
4135 | ||
4136 | void t4_db_full(struct adapter *adap) | |
4137 | { | |
4138 | if (is_t4(adap->params.chip)) { | |
4139 | disable_dbs(adap); | |
4140 | notify_rdma_uld(adap, CXGB4_CONTROL_DB_FULL); | |
4141 | t4_set_reg_field(adap, SGE_INT_ENABLE3, | |
4142 | DBFIFO_HP_INT | DBFIFO_LP_INT, 0); | |
4143 | queue_work(workq, &adap->db_full_task); | |
4144 | } | |
4145 | } | |
4146 | ||
4147 | void t4_db_dropped(struct adapter *adap) | |
4148 | { | |
4149 | if (is_t4(adap->params.chip)) { | |
4150 | disable_dbs(adap); | |
4151 | notify_rdma_uld(adap, CXGB4_CONTROL_DB_FULL); | |
4152 | } | |
4153 | queue_work(workq, &adap->db_drop_task); | |
4154 | } | |
4155 | ||
4156 | static void uld_attach(struct adapter *adap, unsigned int uld) | |
4157 | { | |
4158 | void *handle; | |
4159 | struct cxgb4_lld_info lli; | |
4160 | unsigned short i; | |
4161 | ||
4162 | lli.pdev = adap->pdev; | |
4163 | lli.pf = adap->fn; | |
4164 | lli.l2t = adap->l2t; | |
4165 | lli.tids = &adap->tids; | |
4166 | lli.ports = adap->port; | |
4167 | lli.vr = &adap->vres; | |
4168 | lli.mtus = adap->params.mtus; | |
4169 | if (uld == CXGB4_ULD_RDMA) { | |
4170 | lli.rxq_ids = adap->sge.rdma_rxq; | |
4171 | lli.ciq_ids = adap->sge.rdma_ciq; | |
4172 | lli.nrxq = adap->sge.rdmaqs; | |
4173 | lli.nciq = adap->sge.rdmaciqs; | |
4174 | } else if (uld == CXGB4_ULD_ISCSI) { | |
4175 | lli.rxq_ids = adap->sge.ofld_rxq; | |
4176 | lli.nrxq = adap->sge.ofldqsets; | |
4177 | } | |
4178 | lli.ntxq = adap->sge.ofldqsets; | |
4179 | lli.nchan = adap->params.nports; | |
4180 | lli.nports = adap->params.nports; | |
4181 | lli.wr_cred = adap->params.ofldq_wr_cred; | |
4182 | lli.adapter_type = adap->params.chip; | |
4183 | lli.iscsi_iolen = MAXRXDATA_GET(t4_read_reg(adap, TP_PARA_REG2)); | |
4184 | lli.cclk_ps = 1000000000 / adap->params.vpd.cclk; | |
4185 | lli.udb_density = 1 << QUEUESPERPAGEPF0_GET( | |
4186 | t4_read_reg(adap, SGE_EGRESS_QUEUES_PER_PAGE_PF) >> | |
4187 | (adap->fn * 4)); | |
4188 | lli.ucq_density = 1 << QUEUESPERPAGEPF0_GET( | |
4189 | t4_read_reg(adap, SGE_INGRESS_QUEUES_PER_PAGE_PF) >> | |
4190 | (adap->fn * 4)); | |
4191 | lli.filt_mode = adap->params.tp.vlan_pri_map; | |
4192 | /* MODQ_REQ_MAP sets queues 0-3 to chan 0-3 */ | |
4193 | for (i = 0; i < NCHAN; i++) | |
4194 | lli.tx_modq[i] = i; | |
4195 | lli.gts_reg = adap->regs + MYPF_REG(SGE_PF_GTS); | |
4196 | lli.db_reg = adap->regs + MYPF_REG(SGE_PF_KDOORBELL); | |
4197 | lli.fw_vers = adap->params.fw_vers; | |
4198 | lli.dbfifo_int_thresh = dbfifo_int_thresh; | |
4199 | lli.sge_ingpadboundary = adap->sge.fl_align; | |
4200 | lli.sge_egrstatuspagesize = adap->sge.stat_len; | |
4201 | lli.sge_pktshift = adap->sge.pktshift; | |
4202 | lli.enable_fw_ofld_conn = adap->flags & FW_OFLD_CONN; | |
4203 | lli.max_ordird_qp = adap->params.max_ordird_qp; | |
4204 | lli.max_ird_adapter = adap->params.max_ird_adapter; | |
4205 | lli.ulptx_memwrite_dsgl = adap->params.ulptx_memwrite_dsgl; | |
4206 | ||
4207 | handle = ulds[uld].add(&lli); | |
4208 | if (IS_ERR(handle)) { | |
4209 | dev_warn(adap->pdev_dev, | |
4210 | "could not attach to the %s driver, error %ld\n", | |
4211 | uld_str[uld], PTR_ERR(handle)); | |
4212 | return; | |
4213 | } | |
4214 | ||
4215 | adap->uld_handle[uld] = handle; | |
4216 | ||
4217 | if (!netevent_registered) { | |
4218 | register_netevent_notifier(&cxgb4_netevent_nb); | |
4219 | netevent_registered = true; | |
4220 | } | |
4221 | ||
4222 | if (adap->flags & FULL_INIT_DONE) | |
4223 | ulds[uld].state_change(handle, CXGB4_STATE_UP); | |
4224 | } | |
4225 | ||
4226 | static void attach_ulds(struct adapter *adap) | |
4227 | { | |
4228 | unsigned int i; | |
4229 | ||
4230 | spin_lock(&adap_rcu_lock); | |
4231 | list_add_tail_rcu(&adap->rcu_node, &adap_rcu_list); | |
4232 | spin_unlock(&adap_rcu_lock); | |
4233 | ||
4234 | mutex_lock(&uld_mutex); | |
4235 | list_add_tail(&adap->list_node, &adapter_list); | |
4236 | for (i = 0; i < CXGB4_ULD_MAX; i++) | |
4237 | if (ulds[i].add) | |
4238 | uld_attach(adap, i); | |
4239 | mutex_unlock(&uld_mutex); | |
4240 | } | |
4241 | ||
4242 | static void detach_ulds(struct adapter *adap) | |
4243 | { | |
4244 | unsigned int i; | |
4245 | ||
4246 | mutex_lock(&uld_mutex); | |
4247 | list_del(&adap->list_node); | |
4248 | for (i = 0; i < CXGB4_ULD_MAX; i++) | |
4249 | if (adap->uld_handle[i]) { | |
4250 | ulds[i].state_change(adap->uld_handle[i], | |
4251 | CXGB4_STATE_DETACH); | |
4252 | adap->uld_handle[i] = NULL; | |
4253 | } | |
4254 | if (netevent_registered && list_empty(&adapter_list)) { | |
4255 | unregister_netevent_notifier(&cxgb4_netevent_nb); | |
4256 | netevent_registered = false; | |
4257 | } | |
4258 | mutex_unlock(&uld_mutex); | |
4259 | ||
4260 | spin_lock(&adap_rcu_lock); | |
4261 | list_del_rcu(&adap->rcu_node); | |
4262 | spin_unlock(&adap_rcu_lock); | |
4263 | } | |
4264 | ||
4265 | static void notify_ulds(struct adapter *adap, enum cxgb4_state new_state) | |
4266 | { | |
4267 | unsigned int i; | |
4268 | ||
4269 | mutex_lock(&uld_mutex); | |
4270 | for (i = 0; i < CXGB4_ULD_MAX; i++) | |
4271 | if (adap->uld_handle[i]) | |
4272 | ulds[i].state_change(adap->uld_handle[i], new_state); | |
4273 | mutex_unlock(&uld_mutex); | |
4274 | } | |
4275 | ||
4276 | /** | |
4277 | * cxgb4_register_uld - register an upper-layer driver | |
4278 | * @type: the ULD type | |
4279 | * @p: the ULD methods | |
4280 | * | |
4281 | * Registers an upper-layer driver with this driver and notifies the ULD | |
4282 | * about any presently available devices that support its type. Returns | |
4283 | * %-EBUSY if a ULD of the same type is already registered. | |
4284 | */ | |
4285 | int cxgb4_register_uld(enum cxgb4_uld type, const struct cxgb4_uld_info *p) | |
4286 | { | |
4287 | int ret = 0; | |
4288 | struct adapter *adap; | |
4289 | ||
4290 | if (type >= CXGB4_ULD_MAX) | |
4291 | return -EINVAL; | |
4292 | mutex_lock(&uld_mutex); | |
4293 | if (ulds[type].add) { | |
4294 | ret = -EBUSY; | |
4295 | goto out; | |
4296 | } | |
4297 | ulds[type] = *p; | |
4298 | list_for_each_entry(adap, &adapter_list, list_node) | |
4299 | uld_attach(adap, type); | |
4300 | out: mutex_unlock(&uld_mutex); | |
4301 | return ret; | |
4302 | } | |
4303 | EXPORT_SYMBOL(cxgb4_register_uld); | |
4304 | ||
4305 | /** | |
4306 | * cxgb4_unregister_uld - unregister an upper-layer driver | |
4307 | * @type: the ULD type | |
4308 | * | |
4309 | * Unregisters an existing upper-layer driver. | |
4310 | */ | |
4311 | int cxgb4_unregister_uld(enum cxgb4_uld type) | |
4312 | { | |
4313 | struct adapter *adap; | |
4314 | ||
4315 | if (type >= CXGB4_ULD_MAX) | |
4316 | return -EINVAL; | |
4317 | mutex_lock(&uld_mutex); | |
4318 | list_for_each_entry(adap, &adapter_list, list_node) | |
4319 | adap->uld_handle[type] = NULL; | |
4320 | ulds[type].add = NULL; | |
4321 | mutex_unlock(&uld_mutex); | |
4322 | return 0; | |
4323 | } | |
4324 | EXPORT_SYMBOL(cxgb4_unregister_uld); | |
4325 | ||
4326 | /* Check if netdev on which event is occured belongs to us or not. Return | |
4327 | * success (true) if it belongs otherwise failure (false). | |
4328 | * Called with rcu_read_lock() held. | |
4329 | */ | |
4330 | static bool cxgb4_netdev(const struct net_device *netdev) | |
4331 | { | |
4332 | struct adapter *adap; | |
4333 | int i; | |
4334 | ||
4335 | list_for_each_entry_rcu(adap, &adap_rcu_list, rcu_node) | |
4336 | for (i = 0; i < MAX_NPORTS; i++) | |
4337 | if (adap->port[i] == netdev) | |
4338 | return true; | |
4339 | return false; | |
4340 | } | |
4341 | ||
4342 | static int clip_add(struct net_device *event_dev, struct inet6_ifaddr *ifa, | |
4343 | unsigned long event) | |
4344 | { | |
4345 | int ret = NOTIFY_DONE; | |
4346 | ||
4347 | rcu_read_lock(); | |
4348 | if (cxgb4_netdev(event_dev)) { | |
4349 | switch (event) { | |
4350 | case NETDEV_UP: | |
4351 | ret = cxgb4_clip_get(event_dev, | |
4352 | (const struct in6_addr *)ifa->addr.s6_addr); | |
4353 | if (ret < 0) { | |
4354 | rcu_read_unlock(); | |
4355 | return ret; | |
4356 | } | |
4357 | ret = NOTIFY_OK; | |
4358 | break; | |
4359 | case NETDEV_DOWN: | |
4360 | cxgb4_clip_release(event_dev, | |
4361 | (const struct in6_addr *)ifa->addr.s6_addr); | |
4362 | ret = NOTIFY_OK; | |
4363 | break; | |
4364 | default: | |
4365 | break; | |
4366 | } | |
4367 | } | |
4368 | rcu_read_unlock(); | |
4369 | return ret; | |
4370 | } | |
4371 | ||
4372 | static int cxgb4_inet6addr_handler(struct notifier_block *this, | |
4373 | unsigned long event, void *data) | |
4374 | { | |
4375 | struct inet6_ifaddr *ifa = data; | |
4376 | struct net_device *event_dev; | |
4377 | int ret = NOTIFY_DONE; | |
4378 | struct bonding *bond = netdev_priv(ifa->idev->dev); | |
4379 | struct list_head *iter; | |
4380 | struct slave *slave; | |
4381 | struct pci_dev *first_pdev = NULL; | |
4382 | ||
4383 | if (ifa->idev->dev->priv_flags & IFF_802_1Q_VLAN) { | |
4384 | event_dev = vlan_dev_real_dev(ifa->idev->dev); | |
4385 | ret = clip_add(event_dev, ifa, event); | |
4386 | } else if (ifa->idev->dev->flags & IFF_MASTER) { | |
4387 | /* It is possible that two different adapters are bonded in one | |
4388 | * bond. We need to find such different adapters and add clip | |
4389 | * in all of them only once. | |
4390 | */ | |
4391 | read_lock(&bond->lock); | |
4392 | bond_for_each_slave(bond, slave, iter) { | |
4393 | if (!first_pdev) { | |
4394 | ret = clip_add(slave->dev, ifa, event); | |
4395 | /* If clip_add is success then only initialize | |
4396 | * first_pdev since it means it is our device | |
4397 | */ | |
4398 | if (ret == NOTIFY_OK) | |
4399 | first_pdev = to_pci_dev( | |
4400 | slave->dev->dev.parent); | |
4401 | } else if (first_pdev != | |
4402 | to_pci_dev(slave->dev->dev.parent)) | |
4403 | ret = clip_add(slave->dev, ifa, event); | |
4404 | } | |
4405 | read_unlock(&bond->lock); | |
4406 | } else | |
4407 | ret = clip_add(ifa->idev->dev, ifa, event); | |
4408 | ||
4409 | return ret; | |
4410 | } | |
4411 | ||
4412 | static struct notifier_block cxgb4_inet6addr_notifier = { | |
4413 | .notifier_call = cxgb4_inet6addr_handler | |
4414 | }; | |
4415 | ||
4416 | /* Retrieves IPv6 addresses from a root device (bond, vlan) associated with | |
4417 | * a physical device. | |
4418 | * The physical device reference is needed to send the actul CLIP command. | |
4419 | */ | |
4420 | static int update_dev_clip(struct net_device *root_dev, struct net_device *dev) | |
4421 | { | |
4422 | struct inet6_dev *idev = NULL; | |
4423 | struct inet6_ifaddr *ifa; | |
4424 | int ret = 0; | |
4425 | ||
4426 | idev = __in6_dev_get(root_dev); | |
4427 | if (!idev) | |
4428 | return ret; | |
4429 | ||
4430 | read_lock_bh(&idev->lock); | |
4431 | list_for_each_entry(ifa, &idev->addr_list, if_list) { | |
4432 | ret = cxgb4_clip_get(dev, | |
4433 | (const struct in6_addr *)ifa->addr.s6_addr); | |
4434 | if (ret < 0) | |
4435 | break; | |
4436 | } | |
4437 | read_unlock_bh(&idev->lock); | |
4438 | ||
4439 | return ret; | |
4440 | } | |
4441 | ||
4442 | static int update_root_dev_clip(struct net_device *dev) | |
4443 | { | |
4444 | struct net_device *root_dev = NULL; | |
4445 | int i, ret = 0; | |
4446 | ||
4447 | /* First populate the real net device's IPv6 addresses */ | |
4448 | ret = update_dev_clip(dev, dev); | |
4449 | if (ret) | |
4450 | return ret; | |
4451 | ||
4452 | /* Parse all bond and vlan devices layered on top of the physical dev */ | |
4453 | for (i = 0; i < VLAN_N_VID; i++) { | |
4454 | root_dev = __vlan_find_dev_deep_rcu(dev, htons(ETH_P_8021Q), i); | |
4455 | if (!root_dev) | |
4456 | continue; | |
4457 | ||
4458 | ret = update_dev_clip(root_dev, dev); | |
4459 | if (ret) | |
4460 | break; | |
4461 | } | |
4462 | return ret; | |
4463 | } | |
4464 | ||
4465 | static void update_clip(const struct adapter *adap) | |
4466 | { | |
4467 | int i; | |
4468 | struct net_device *dev; | |
4469 | int ret; | |
4470 | ||
4471 | rcu_read_lock(); | |
4472 | ||
4473 | for (i = 0; i < MAX_NPORTS; i++) { | |
4474 | dev = adap->port[i]; | |
4475 | ret = 0; | |
4476 | ||
4477 | if (dev) | |
4478 | ret = update_root_dev_clip(dev); | |
4479 | ||
4480 | if (ret < 0) | |
4481 | break; | |
4482 | } | |
4483 | rcu_read_unlock(); | |
4484 | } | |
4485 | ||
4486 | /** | |
4487 | * cxgb_up - enable the adapter | |
4488 | * @adap: adapter being enabled | |
4489 | * | |
4490 | * Called when the first port is enabled, this function performs the | |
4491 | * actions necessary to make an adapter operational, such as completing | |
4492 | * the initialization of HW modules, and enabling interrupts. | |
4493 | * | |
4494 | * Must be called with the rtnl lock held. | |
4495 | */ | |
4496 | static int cxgb_up(struct adapter *adap) | |
4497 | { | |
4498 | int err; | |
4499 | ||
4500 | err = setup_sge_queues(adap); | |
4501 | if (err) | |
4502 | goto out; | |
4503 | err = setup_rss(adap); | |
4504 | if (err) | |
4505 | goto freeq; | |
4506 | ||
4507 | if (adap->flags & USING_MSIX) { | |
4508 | name_msix_vecs(adap); | |
4509 | err = request_irq(adap->msix_info[0].vec, t4_nondata_intr, 0, | |
4510 | adap->msix_info[0].desc, adap); | |
4511 | if (err) | |
4512 | goto irq_err; | |
4513 | ||
4514 | err = request_msix_queue_irqs(adap); | |
4515 | if (err) { | |
4516 | free_irq(adap->msix_info[0].vec, adap); | |
4517 | goto irq_err; | |
4518 | } | |
4519 | } else { | |
4520 | err = request_irq(adap->pdev->irq, t4_intr_handler(adap), | |
4521 | (adap->flags & USING_MSI) ? 0 : IRQF_SHARED, | |
4522 | adap->port[0]->name, adap); | |
4523 | if (err) | |
4524 | goto irq_err; | |
4525 | } | |
4526 | enable_rx(adap); | |
4527 | t4_sge_start(adap); | |
4528 | t4_intr_enable(adap); | |
4529 | adap->flags |= FULL_INIT_DONE; | |
4530 | notify_ulds(adap, CXGB4_STATE_UP); | |
4531 | update_clip(adap); | |
4532 | out: | |
4533 | return err; | |
4534 | irq_err: | |
4535 | dev_err(adap->pdev_dev, "request_irq failed, err %d\n", err); | |
4536 | freeq: | |
4537 | t4_free_sge_resources(adap); | |
4538 | goto out; | |
4539 | } | |
4540 | ||
4541 | static void cxgb_down(struct adapter *adapter) | |
4542 | { | |
4543 | t4_intr_disable(adapter); | |
4544 | cancel_work_sync(&adapter->tid_release_task); | |
4545 | cancel_work_sync(&adapter->db_full_task); | |
4546 | cancel_work_sync(&adapter->db_drop_task); | |
4547 | adapter->tid_release_task_busy = false; | |
4548 | adapter->tid_release_head = NULL; | |
4549 | ||
4550 | if (adapter->flags & USING_MSIX) { | |
4551 | free_msix_queue_irqs(adapter); | |
4552 | free_irq(adapter->msix_info[0].vec, adapter); | |
4553 | } else | |
4554 | free_irq(adapter->pdev->irq, adapter); | |
4555 | quiesce_rx(adapter); | |
4556 | t4_sge_stop(adapter); | |
4557 | t4_free_sge_resources(adapter); | |
4558 | adapter->flags &= ~FULL_INIT_DONE; | |
4559 | } | |
4560 | ||
4561 | /* | |
4562 | * net_device operations | |
4563 | */ | |
4564 | static int cxgb_open(struct net_device *dev) | |
4565 | { | |
4566 | int err; | |
4567 | struct port_info *pi = netdev_priv(dev); | |
4568 | struct adapter *adapter = pi->adapter; | |
4569 | ||
4570 | netif_carrier_off(dev); | |
4571 | ||
4572 | if (!(adapter->flags & FULL_INIT_DONE)) { | |
4573 | err = cxgb_up(adapter); | |
4574 | if (err < 0) | |
4575 | return err; | |
4576 | } | |
4577 | ||
4578 | err = link_start(dev); | |
4579 | if (!err) | |
4580 | netif_tx_start_all_queues(dev); | |
4581 | return err; | |
4582 | } | |
4583 | ||
4584 | static int cxgb_close(struct net_device *dev) | |
4585 | { | |
4586 | struct port_info *pi = netdev_priv(dev); | |
4587 | struct adapter *adapter = pi->adapter; | |
4588 | ||
4589 | netif_tx_stop_all_queues(dev); | |
4590 | netif_carrier_off(dev); | |
4591 | return t4_enable_vi(adapter, adapter->fn, pi->viid, false, false); | |
4592 | } | |
4593 | ||
4594 | /* Return an error number if the indicated filter isn't writable ... | |
4595 | */ | |
4596 | static int writable_filter(struct filter_entry *f) | |
4597 | { | |
4598 | if (f->locked) | |
4599 | return -EPERM; | |
4600 | if (f->pending) | |
4601 | return -EBUSY; | |
4602 | ||
4603 | return 0; | |
4604 | } | |
4605 | ||
4606 | /* Delete the filter at the specified index (if valid). The checks for all | |
4607 | * the common problems with doing this like the filter being locked, currently | |
4608 | * pending in another operation, etc. | |
4609 | */ | |
4610 | static int delete_filter(struct adapter *adapter, unsigned int fidx) | |
4611 | { | |
4612 | struct filter_entry *f; | |
4613 | int ret; | |
4614 | ||
4615 | if (fidx >= adapter->tids.nftids + adapter->tids.nsftids) | |
4616 | return -EINVAL; | |
4617 | ||
4618 | f = &adapter->tids.ftid_tab[fidx]; | |
4619 | ret = writable_filter(f); | |
4620 | if (ret) | |
4621 | return ret; | |
4622 | if (f->valid) | |
4623 | return del_filter_wr(adapter, fidx); | |
4624 | ||
4625 | return 0; | |
4626 | } | |
4627 | ||
4628 | int cxgb4_create_server_filter(const struct net_device *dev, unsigned int stid, | |
4629 | __be32 sip, __be16 sport, __be16 vlan, | |
4630 | unsigned int queue, unsigned char port, unsigned char mask) | |
4631 | { | |
4632 | int ret; | |
4633 | struct filter_entry *f; | |
4634 | struct adapter *adap; | |
4635 | int i; | |
4636 | u8 *val; | |
4637 | ||
4638 | adap = netdev2adap(dev); | |
4639 | ||
4640 | /* Adjust stid to correct filter index */ | |
4641 | stid -= adap->tids.sftid_base; | |
4642 | stid += adap->tids.nftids; | |
4643 | ||
4644 | /* Check to make sure the filter requested is writable ... | |
4645 | */ | |
4646 | f = &adap->tids.ftid_tab[stid]; | |
4647 | ret = writable_filter(f); | |
4648 | if (ret) | |
4649 | return ret; | |
4650 | ||
4651 | /* Clear out any old resources being used by the filter before | |
4652 | * we start constructing the new filter. | |
4653 | */ | |
4654 | if (f->valid) | |
4655 | clear_filter(adap, f); | |
4656 | ||
4657 | /* Clear out filter specifications */ | |
4658 | memset(&f->fs, 0, sizeof(struct ch_filter_specification)); | |
4659 | f->fs.val.lport = cpu_to_be16(sport); | |
4660 | f->fs.mask.lport = ~0; | |
4661 | val = (u8 *)&sip; | |
4662 | if ((val[0] | val[1] | val[2] | val[3]) != 0) { | |
4663 | for (i = 0; i < 4; i++) { | |
4664 | f->fs.val.lip[i] = val[i]; | |
4665 | f->fs.mask.lip[i] = ~0; | |
4666 | } | |
4667 | if (adap->params.tp.vlan_pri_map & F_PORT) { | |
4668 | f->fs.val.iport = port; | |
4669 | f->fs.mask.iport = mask; | |
4670 | } | |
4671 | } | |
4672 | ||
4673 | if (adap->params.tp.vlan_pri_map & F_PROTOCOL) { | |
4674 | f->fs.val.proto = IPPROTO_TCP; | |
4675 | f->fs.mask.proto = ~0; | |
4676 | } | |
4677 | ||
4678 | f->fs.dirsteer = 1; | |
4679 | f->fs.iq = queue; | |
4680 | /* Mark filter as locked */ | |
4681 | f->locked = 1; | |
4682 | f->fs.rpttid = 1; | |
4683 | ||
4684 | ret = set_filter_wr(adap, stid); | |
4685 | if (ret) { | |
4686 | clear_filter(adap, f); | |
4687 | return ret; | |
4688 | } | |
4689 | ||
4690 | return 0; | |
4691 | } | |
4692 | EXPORT_SYMBOL(cxgb4_create_server_filter); | |
4693 | ||
4694 | int cxgb4_remove_server_filter(const struct net_device *dev, unsigned int stid, | |
4695 | unsigned int queue, bool ipv6) | |
4696 | { | |
4697 | int ret; | |
4698 | struct filter_entry *f; | |
4699 | struct adapter *adap; | |
4700 | ||
4701 | adap = netdev2adap(dev); | |
4702 | ||
4703 | /* Adjust stid to correct filter index */ | |
4704 | stid -= adap->tids.sftid_base; | |
4705 | stid += adap->tids.nftids; | |
4706 | ||
4707 | f = &adap->tids.ftid_tab[stid]; | |
4708 | /* Unlock the filter */ | |
4709 | f->locked = 0; | |
4710 | ||
4711 | ret = delete_filter(adap, stid); | |
4712 | if (ret) | |
4713 | return ret; | |
4714 | ||
4715 | return 0; | |
4716 | } | |
4717 | EXPORT_SYMBOL(cxgb4_remove_server_filter); | |
4718 | ||
4719 | static struct rtnl_link_stats64 *cxgb_get_stats(struct net_device *dev, | |
4720 | struct rtnl_link_stats64 *ns) | |
4721 | { | |
4722 | struct port_stats stats; | |
4723 | struct port_info *p = netdev_priv(dev); | |
4724 | struct adapter *adapter = p->adapter; | |
4725 | ||
4726 | /* Block retrieving statistics during EEH error | |
4727 | * recovery. Otherwise, the recovery might fail | |
4728 | * and the PCI device will be removed permanently | |
4729 | */ | |
4730 | spin_lock(&adapter->stats_lock); | |
4731 | if (!netif_device_present(dev)) { | |
4732 | spin_unlock(&adapter->stats_lock); | |
4733 | return ns; | |
4734 | } | |
4735 | t4_get_port_stats(adapter, p->tx_chan, &stats); | |
4736 | spin_unlock(&adapter->stats_lock); | |
4737 | ||
4738 | ns->tx_bytes = stats.tx_octets; | |
4739 | ns->tx_packets = stats.tx_frames; | |
4740 | ns->rx_bytes = stats.rx_octets; | |
4741 | ns->rx_packets = stats.rx_frames; | |
4742 | ns->multicast = stats.rx_mcast_frames; | |
4743 | ||
4744 | /* detailed rx_errors */ | |
4745 | ns->rx_length_errors = stats.rx_jabber + stats.rx_too_long + | |
4746 | stats.rx_runt; | |
4747 | ns->rx_over_errors = 0; | |
4748 | ns->rx_crc_errors = stats.rx_fcs_err; | |
4749 | ns->rx_frame_errors = stats.rx_symbol_err; | |
4750 | ns->rx_fifo_errors = stats.rx_ovflow0 + stats.rx_ovflow1 + | |
4751 | stats.rx_ovflow2 + stats.rx_ovflow3 + | |
4752 | stats.rx_trunc0 + stats.rx_trunc1 + | |
4753 | stats.rx_trunc2 + stats.rx_trunc3; | |
4754 | ns->rx_missed_errors = 0; | |
4755 | ||
4756 | /* detailed tx_errors */ | |
4757 | ns->tx_aborted_errors = 0; | |
4758 | ns->tx_carrier_errors = 0; | |
4759 | ns->tx_fifo_errors = 0; | |
4760 | ns->tx_heartbeat_errors = 0; | |
4761 | ns->tx_window_errors = 0; | |
4762 | ||
4763 | ns->tx_errors = stats.tx_error_frames; | |
4764 | ns->rx_errors = stats.rx_symbol_err + stats.rx_fcs_err + | |
4765 | ns->rx_length_errors + stats.rx_len_err + ns->rx_fifo_errors; | |
4766 | return ns; | |
4767 | } | |
4768 | ||
4769 | static int cxgb_ioctl(struct net_device *dev, struct ifreq *req, int cmd) | |
4770 | { | |
4771 | unsigned int mbox; | |
4772 | int ret = 0, prtad, devad; | |
4773 | struct port_info *pi = netdev_priv(dev); | |
4774 | struct mii_ioctl_data *data = (struct mii_ioctl_data *)&req->ifr_data; | |
4775 | ||
4776 | switch (cmd) { | |
4777 | case SIOCGMIIPHY: | |
4778 | if (pi->mdio_addr < 0) | |
4779 | return -EOPNOTSUPP; | |
4780 | data->phy_id = pi->mdio_addr; | |
4781 | break; | |
4782 | case SIOCGMIIREG: | |
4783 | case SIOCSMIIREG: | |
4784 | if (mdio_phy_id_is_c45(data->phy_id)) { | |
4785 | prtad = mdio_phy_id_prtad(data->phy_id); | |
4786 | devad = mdio_phy_id_devad(data->phy_id); | |
4787 | } else if (data->phy_id < 32) { | |
4788 | prtad = data->phy_id; | |
4789 | devad = 0; | |
4790 | data->reg_num &= 0x1f; | |
4791 | } else | |
4792 | return -EINVAL; | |
4793 | ||
4794 | mbox = pi->adapter->fn; | |
4795 | if (cmd == SIOCGMIIREG) | |
4796 | ret = t4_mdio_rd(pi->adapter, mbox, prtad, devad, | |
4797 | data->reg_num, &data->val_out); | |
4798 | else | |
4799 | ret = t4_mdio_wr(pi->adapter, mbox, prtad, devad, | |
4800 | data->reg_num, data->val_in); | |
4801 | break; | |
4802 | default: | |
4803 | return -EOPNOTSUPP; | |
4804 | } | |
4805 | return ret; | |
4806 | } | |
4807 | ||
4808 | static void cxgb_set_rxmode(struct net_device *dev) | |
4809 | { | |
4810 | /* unfortunately we can't return errors to the stack */ | |
4811 | set_rxmode(dev, -1, false); | |
4812 | } | |
4813 | ||
4814 | static int cxgb_change_mtu(struct net_device *dev, int new_mtu) | |
4815 | { | |
4816 | int ret; | |
4817 | struct port_info *pi = netdev_priv(dev); | |
4818 | ||
4819 | if (new_mtu < 81 || new_mtu > MAX_MTU) /* accommodate SACK */ | |
4820 | return -EINVAL; | |
4821 | ret = t4_set_rxmode(pi->adapter, pi->adapter->fn, pi->viid, new_mtu, -1, | |
4822 | -1, -1, -1, true); | |
4823 | if (!ret) | |
4824 | dev->mtu = new_mtu; | |
4825 | return ret; | |
4826 | } | |
4827 | ||
4828 | static int cxgb_set_mac_addr(struct net_device *dev, void *p) | |
4829 | { | |
4830 | int ret; | |
4831 | struct sockaddr *addr = p; | |
4832 | struct port_info *pi = netdev_priv(dev); | |
4833 | ||
4834 | if (!is_valid_ether_addr(addr->sa_data)) | |
4835 | return -EADDRNOTAVAIL; | |
4836 | ||
4837 | ret = t4_change_mac(pi->adapter, pi->adapter->fn, pi->viid, | |
4838 | pi->xact_addr_filt, addr->sa_data, true, true); | |
4839 | if (ret < 0) | |
4840 | return ret; | |
4841 | ||
4842 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
4843 | pi->xact_addr_filt = ret; | |
4844 | return 0; | |
4845 | } | |
4846 | ||
4847 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
4848 | static void cxgb_netpoll(struct net_device *dev) | |
4849 | { | |
4850 | struct port_info *pi = netdev_priv(dev); | |
4851 | struct adapter *adap = pi->adapter; | |
4852 | ||
4853 | if (adap->flags & USING_MSIX) { | |
4854 | int i; | |
4855 | struct sge_eth_rxq *rx = &adap->sge.ethrxq[pi->first_qset]; | |
4856 | ||
4857 | for (i = pi->nqsets; i; i--, rx++) | |
4858 | t4_sge_intr_msix(0, &rx->rspq); | |
4859 | } else | |
4860 | t4_intr_handler(adap)(0, adap); | |
4861 | } | |
4862 | #endif | |
4863 | ||
4864 | static const struct net_device_ops cxgb4_netdev_ops = { | |
4865 | .ndo_open = cxgb_open, | |
4866 | .ndo_stop = cxgb_close, | |
4867 | .ndo_start_xmit = t4_eth_xmit, | |
4868 | .ndo_select_queue = cxgb_select_queue, | |
4869 | .ndo_get_stats64 = cxgb_get_stats, | |
4870 | .ndo_set_rx_mode = cxgb_set_rxmode, | |
4871 | .ndo_set_mac_address = cxgb_set_mac_addr, | |
4872 | .ndo_set_features = cxgb_set_features, | |
4873 | .ndo_validate_addr = eth_validate_addr, | |
4874 | .ndo_do_ioctl = cxgb_ioctl, | |
4875 | .ndo_change_mtu = cxgb_change_mtu, | |
4876 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
4877 | .ndo_poll_controller = cxgb_netpoll, | |
4878 | #endif | |
4879 | }; | |
4880 | ||
4881 | void t4_fatal_err(struct adapter *adap) | |
4882 | { | |
4883 | t4_set_reg_field(adap, SGE_CONTROL, GLOBALENABLE, 0); | |
4884 | t4_intr_disable(adap); | |
4885 | dev_alert(adap->pdev_dev, "encountered fatal error, adapter stopped\n"); | |
4886 | } | |
4887 | ||
4888 | /* Return the specified PCI-E Configuration Space register from our Physical | |
4889 | * Function. We try first via a Firmware LDST Command since we prefer to let | |
4890 | * the firmware own all of these registers, but if that fails we go for it | |
4891 | * directly ourselves. | |
4892 | */ | |
4893 | static u32 t4_read_pcie_cfg4(struct adapter *adap, int reg) | |
4894 | { | |
4895 | struct fw_ldst_cmd ldst_cmd; | |
4896 | u32 val; | |
4897 | int ret; | |
4898 | ||
4899 | /* Construct and send the Firmware LDST Command to retrieve the | |
4900 | * specified PCI-E Configuration Space register. | |
4901 | */ | |
4902 | memset(&ldst_cmd, 0, sizeof(ldst_cmd)); | |
4903 | ldst_cmd.op_to_addrspace = | |
4904 | htonl(FW_CMD_OP(FW_LDST_CMD) | | |
4905 | FW_CMD_REQUEST | | |
4906 | FW_CMD_READ | | |
4907 | FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_FUNC_PCIE)); | |
4908 | ldst_cmd.cycles_to_len16 = htonl(FW_LEN16(ldst_cmd)); | |
4909 | ldst_cmd.u.pcie.select_naccess = FW_LDST_CMD_NACCESS(1); | |
4910 | ldst_cmd.u.pcie.ctrl_to_fn = | |
4911 | (FW_LDST_CMD_LC | FW_LDST_CMD_FN(adap->fn)); | |
4912 | ldst_cmd.u.pcie.r = reg; | |
4913 | ret = t4_wr_mbox(adap, adap->mbox, &ldst_cmd, sizeof(ldst_cmd), | |
4914 | &ldst_cmd); | |
4915 | ||
4916 | /* If the LDST Command suucceeded, exctract the returned register | |
4917 | * value. Otherwise read it directly ourself. | |
4918 | */ | |
4919 | if (ret == 0) | |
4920 | val = ntohl(ldst_cmd.u.pcie.data[0]); | |
4921 | else | |
4922 | t4_hw_pci_read_cfg4(adap, reg, &val); | |
4923 | ||
4924 | return val; | |
4925 | } | |
4926 | ||
4927 | static void setup_memwin(struct adapter *adap) | |
4928 | { | |
4929 | u32 mem_win0_base, mem_win1_base, mem_win2_base, mem_win2_aperture; | |
4930 | ||
4931 | if (is_t4(adap->params.chip)) { | |
4932 | u32 bar0; | |
4933 | ||
4934 | /* Truncation intentional: we only read the bottom 32-bits of | |
4935 | * the 64-bit BAR0/BAR1 ... We use the hardware backdoor | |
4936 | * mechanism to read BAR0 instead of using | |
4937 | * pci_resource_start() because we could be operating from | |
4938 | * within a Virtual Machine which is trapping our accesses to | |
4939 | * our Configuration Space and we need to set up the PCI-E | |
4940 | * Memory Window decoders with the actual addresses which will | |
4941 | * be coming across the PCI-E link. | |
4942 | */ | |
4943 | bar0 = t4_read_pcie_cfg4(adap, PCI_BASE_ADDRESS_0); | |
4944 | bar0 &= PCI_BASE_ADDRESS_MEM_MASK; | |
4945 | adap->t4_bar0 = bar0; | |
4946 | ||
4947 | mem_win0_base = bar0 + MEMWIN0_BASE; | |
4948 | mem_win1_base = bar0 + MEMWIN1_BASE; | |
4949 | mem_win2_base = bar0 + MEMWIN2_BASE; | |
4950 | mem_win2_aperture = MEMWIN2_APERTURE; | |
4951 | } else { | |
4952 | /* For T5, only relative offset inside the PCIe BAR is passed */ | |
4953 | mem_win0_base = MEMWIN0_BASE; | |
4954 | mem_win1_base = MEMWIN1_BASE; | |
4955 | mem_win2_base = MEMWIN2_BASE_T5; | |
4956 | mem_win2_aperture = MEMWIN2_APERTURE_T5; | |
4957 | } | |
4958 | t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 0), | |
4959 | mem_win0_base | BIR(0) | | |
4960 | WINDOW(ilog2(MEMWIN0_APERTURE) - 10)); | |
4961 | t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 1), | |
4962 | mem_win1_base | BIR(0) | | |
4963 | WINDOW(ilog2(MEMWIN1_APERTURE) - 10)); | |
4964 | t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 2), | |
4965 | mem_win2_base | BIR(0) | | |
4966 | WINDOW(ilog2(mem_win2_aperture) - 10)); | |
4967 | t4_read_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 2)); | |
4968 | } | |
4969 | ||
4970 | static void setup_memwin_rdma(struct adapter *adap) | |
4971 | { | |
4972 | if (adap->vres.ocq.size) { | |
4973 | u32 start; | |
4974 | unsigned int sz_kb; | |
4975 | ||
4976 | start = t4_read_pcie_cfg4(adap, PCI_BASE_ADDRESS_2); | |
4977 | start &= PCI_BASE_ADDRESS_MEM_MASK; | |
4978 | start += OCQ_WIN_OFFSET(adap->pdev, &adap->vres); | |
4979 | sz_kb = roundup_pow_of_two(adap->vres.ocq.size) >> 10; | |
4980 | t4_write_reg(adap, | |
4981 | PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 3), | |
4982 | start | BIR(1) | WINDOW(ilog2(sz_kb))); | |
4983 | t4_write_reg(adap, | |
4984 | PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_OFFSET, 3), | |
4985 | adap->vres.ocq.start); | |
4986 | t4_read_reg(adap, | |
4987 | PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_OFFSET, 3)); | |
4988 | } | |
4989 | } | |
4990 | ||
4991 | static int adap_init1(struct adapter *adap, struct fw_caps_config_cmd *c) | |
4992 | { | |
4993 | u32 v; | |
4994 | int ret; | |
4995 | ||
4996 | /* get device capabilities */ | |
4997 | memset(c, 0, sizeof(*c)); | |
4998 | c->op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | | |
4999 | FW_CMD_REQUEST | FW_CMD_READ); | |
5000 | c->cfvalid_to_len16 = htonl(FW_LEN16(*c)); | |
5001 | ret = t4_wr_mbox(adap, adap->fn, c, sizeof(*c), c); | |
5002 | if (ret < 0) | |
5003 | return ret; | |
5004 | ||
5005 | /* select capabilities we'll be using */ | |
5006 | if (c->niccaps & htons(FW_CAPS_CONFIG_NIC_VM)) { | |
5007 | if (!vf_acls) | |
5008 | c->niccaps ^= htons(FW_CAPS_CONFIG_NIC_VM); | |
5009 | else | |
5010 | c->niccaps = htons(FW_CAPS_CONFIG_NIC_VM); | |
5011 | } else if (vf_acls) { | |
5012 | dev_err(adap->pdev_dev, "virtualization ACLs not supported"); | |
5013 | return ret; | |
5014 | } | |
5015 | c->op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | | |
5016 | FW_CMD_REQUEST | FW_CMD_WRITE); | |
5017 | ret = t4_wr_mbox(adap, adap->fn, c, sizeof(*c), NULL); | |
5018 | if (ret < 0) | |
5019 | return ret; | |
5020 | ||
5021 | ret = t4_config_glbl_rss(adap, adap->fn, | |
5022 | FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL, | |
5023 | FW_RSS_GLB_CONFIG_CMD_TNLMAPEN | | |
5024 | FW_RSS_GLB_CONFIG_CMD_TNLALLLKP); | |
5025 | if (ret < 0) | |
5026 | return ret; | |
5027 | ||
5028 | ret = t4_cfg_pfvf(adap, adap->fn, adap->fn, 0, MAX_EGRQ, 64, MAX_INGQ, | |
5029 | 0, 0, 4, 0xf, 0xf, 16, FW_CMD_CAP_PF, FW_CMD_CAP_PF); | |
5030 | if (ret < 0) | |
5031 | return ret; | |
5032 | ||
5033 | t4_sge_init(adap); | |
5034 | ||
5035 | /* tweak some settings */ | |
5036 | t4_write_reg(adap, TP_SHIFT_CNT, 0x64f8849); | |
5037 | t4_write_reg(adap, ULP_RX_TDDP_PSZ, HPZ0(PAGE_SHIFT - 12)); | |
5038 | t4_write_reg(adap, TP_PIO_ADDR, TP_INGRESS_CONFIG); | |
5039 | v = t4_read_reg(adap, TP_PIO_DATA); | |
5040 | t4_write_reg(adap, TP_PIO_DATA, v & ~CSUM_HAS_PSEUDO_HDR); | |
5041 | ||
5042 | /* first 4 Tx modulation queues point to consecutive Tx channels */ | |
5043 | adap->params.tp.tx_modq_map = 0xE4; | |
5044 | t4_write_reg(adap, A_TP_TX_MOD_QUEUE_REQ_MAP, | |
5045 | V_TX_MOD_QUEUE_REQ_MAP(adap->params.tp.tx_modq_map)); | |
5046 | ||
5047 | /* associate each Tx modulation queue with consecutive Tx channels */ | |
5048 | v = 0x84218421; | |
5049 | t4_write_indirect(adap, TP_PIO_ADDR, TP_PIO_DATA, | |
5050 | &v, 1, A_TP_TX_SCHED_HDR); | |
5051 | t4_write_indirect(adap, TP_PIO_ADDR, TP_PIO_DATA, | |
5052 | &v, 1, A_TP_TX_SCHED_FIFO); | |
5053 | t4_write_indirect(adap, TP_PIO_ADDR, TP_PIO_DATA, | |
5054 | &v, 1, A_TP_TX_SCHED_PCMD); | |
5055 | ||
5056 | #define T4_TX_MODQ_10G_WEIGHT_DEFAULT 16 /* in KB units */ | |
5057 | if (is_offload(adap)) { | |
5058 | t4_write_reg(adap, A_TP_TX_MOD_QUEUE_WEIGHT0, | |
5059 | V_TX_MODQ_WEIGHT0(T4_TX_MODQ_10G_WEIGHT_DEFAULT) | | |
5060 | V_TX_MODQ_WEIGHT1(T4_TX_MODQ_10G_WEIGHT_DEFAULT) | | |
5061 | V_TX_MODQ_WEIGHT2(T4_TX_MODQ_10G_WEIGHT_DEFAULT) | | |
5062 | V_TX_MODQ_WEIGHT3(T4_TX_MODQ_10G_WEIGHT_DEFAULT)); | |
5063 | t4_write_reg(adap, A_TP_TX_MOD_CHANNEL_WEIGHT, | |
5064 | V_TX_MODQ_WEIGHT0(T4_TX_MODQ_10G_WEIGHT_DEFAULT) | | |
5065 | V_TX_MODQ_WEIGHT1(T4_TX_MODQ_10G_WEIGHT_DEFAULT) | | |
5066 | V_TX_MODQ_WEIGHT2(T4_TX_MODQ_10G_WEIGHT_DEFAULT) | | |
5067 | V_TX_MODQ_WEIGHT3(T4_TX_MODQ_10G_WEIGHT_DEFAULT)); | |
5068 | } | |
5069 | ||
5070 | /* get basic stuff going */ | |
5071 | return t4_early_init(adap, adap->fn); | |
5072 | } | |
5073 | ||
5074 | /* | |
5075 | * Max # of ATIDs. The absolute HW max is 16K but we keep it lower. | |
5076 | */ | |
5077 | #define MAX_ATIDS 8192U | |
5078 | ||
5079 | /* | |
5080 | * Phase 0 of initialization: contact FW, obtain config, perform basic init. | |
5081 | * | |
5082 | * If the firmware we're dealing with has Configuration File support, then | |
5083 | * we use that to perform all configuration | |
5084 | */ | |
5085 | ||
5086 | /* | |
5087 | * Tweak configuration based on module parameters, etc. Most of these have | |
5088 | * defaults assigned to them by Firmware Configuration Files (if we're using | |
5089 | * them) but need to be explicitly set if we're using hard-coded | |
5090 | * initialization. But even in the case of using Firmware Configuration | |
5091 | * Files, we'd like to expose the ability to change these via module | |
5092 | * parameters so these are essentially common tweaks/settings for | |
5093 | * Configuration Files and hard-coded initialization ... | |
5094 | */ | |
5095 | static int adap_init0_tweaks(struct adapter *adapter) | |
5096 | { | |
5097 | /* | |
5098 | * Fix up various Host-Dependent Parameters like Page Size, Cache | |
5099 | * Line Size, etc. The firmware default is for a 4KB Page Size and | |
5100 | * 64B Cache Line Size ... | |
5101 | */ | |
5102 | t4_fixup_host_params(adapter, PAGE_SIZE, L1_CACHE_BYTES); | |
5103 | ||
5104 | /* | |
5105 | * Process module parameters which affect early initialization. | |
5106 | */ | |
5107 | if (rx_dma_offset != 2 && rx_dma_offset != 0) { | |
5108 | dev_err(&adapter->pdev->dev, | |
5109 | "Ignoring illegal rx_dma_offset=%d, using 2\n", | |
5110 | rx_dma_offset); | |
5111 | rx_dma_offset = 2; | |
5112 | } | |
5113 | t4_set_reg_field(adapter, SGE_CONTROL, | |
5114 | PKTSHIFT_MASK, | |
5115 | PKTSHIFT(rx_dma_offset)); | |
5116 | ||
5117 | /* | |
5118 | * Don't include the "IP Pseudo Header" in CPL_RX_PKT checksums: Linux | |
5119 | * adds the pseudo header itself. | |
5120 | */ | |
5121 | t4_tp_wr_bits_indirect(adapter, TP_INGRESS_CONFIG, | |
5122 | CSUM_HAS_PSEUDO_HDR, 0); | |
5123 | ||
5124 | return 0; | |
5125 | } | |
5126 | ||
5127 | /* | |
5128 | * Attempt to initialize the adapter via a Firmware Configuration File. | |
5129 | */ | |
5130 | static int adap_init0_config(struct adapter *adapter, int reset) | |
5131 | { | |
5132 | struct fw_caps_config_cmd caps_cmd; | |
5133 | const struct firmware *cf; | |
5134 | unsigned long mtype = 0, maddr = 0; | |
5135 | u32 finiver, finicsum, cfcsum; | |
5136 | int ret; | |
5137 | int config_issued = 0; | |
5138 | char *fw_config_file, fw_config_file_path[256]; | |
5139 | char *config_name = NULL; | |
5140 | ||
5141 | /* | |
5142 | * Reset device if necessary. | |
5143 | */ | |
5144 | if (reset) { | |
5145 | ret = t4_fw_reset(adapter, adapter->mbox, | |
5146 | PIORSTMODE | PIORST); | |
5147 | if (ret < 0) | |
5148 | goto bye; | |
5149 | } | |
5150 | ||
5151 | /* | |
5152 | * If we have a T4 configuration file under /lib/firmware/cxgb4/, | |
5153 | * then use that. Otherwise, use the configuration file stored | |
5154 | * in the adapter flash ... | |
5155 | */ | |
5156 | switch (CHELSIO_CHIP_VERSION(adapter->params.chip)) { | |
5157 | case CHELSIO_T4: | |
5158 | fw_config_file = FW4_CFNAME; | |
5159 | break; | |
5160 | case CHELSIO_T5: | |
5161 | fw_config_file = FW5_CFNAME; | |
5162 | break; | |
5163 | default: | |
5164 | dev_err(adapter->pdev_dev, "Device %d is not supported\n", | |
5165 | adapter->pdev->device); | |
5166 | ret = -EINVAL; | |
5167 | goto bye; | |
5168 | } | |
5169 | ||
5170 | ret = request_firmware(&cf, fw_config_file, adapter->pdev_dev); | |
5171 | if (ret < 0) { | |
5172 | config_name = "On FLASH"; | |
5173 | mtype = FW_MEMTYPE_CF_FLASH; | |
5174 | maddr = t4_flash_cfg_addr(adapter); | |
5175 | } else { | |
5176 | u32 params[7], val[7]; | |
5177 | ||
5178 | sprintf(fw_config_file_path, | |
5179 | "/lib/firmware/%s", fw_config_file); | |
5180 | config_name = fw_config_file_path; | |
5181 | ||
5182 | if (cf->size >= FLASH_CFG_MAX_SIZE) | |
5183 | ret = -ENOMEM; | |
5184 | else { | |
5185 | params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | | |
5186 | FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_CF)); | |
5187 | ret = t4_query_params(adapter, adapter->mbox, | |
5188 | adapter->fn, 0, 1, params, val); | |
5189 | if (ret == 0) { | |
5190 | /* | |
5191 | * For t4_memory_rw() below addresses and | |
5192 | * sizes have to be in terms of multiples of 4 | |
5193 | * bytes. So, if the Configuration File isn't | |
5194 | * a multiple of 4 bytes in length we'll have | |
5195 | * to write that out separately since we can't | |
5196 | * guarantee that the bytes following the | |
5197 | * residual byte in the buffer returned by | |
5198 | * request_firmware() are zeroed out ... | |
5199 | */ | |
5200 | size_t resid = cf->size & 0x3; | |
5201 | size_t size = cf->size & ~0x3; | |
5202 | __be32 *data = (__be32 *)cf->data; | |
5203 | ||
5204 | mtype = FW_PARAMS_PARAM_Y_GET(val[0]); | |
5205 | maddr = FW_PARAMS_PARAM_Z_GET(val[0]) << 16; | |
5206 | ||
5207 | spin_lock(&adapter->win0_lock); | |
5208 | ret = t4_memory_rw(adapter, 0, mtype, maddr, | |
5209 | size, data, T4_MEMORY_WRITE); | |
5210 | if (ret == 0 && resid != 0) { | |
5211 | union { | |
5212 | __be32 word; | |
5213 | char buf[4]; | |
5214 | } last; | |
5215 | int i; | |
5216 | ||
5217 | last.word = data[size >> 2]; | |
5218 | for (i = resid; i < 4; i++) | |
5219 | last.buf[i] = 0; | |
5220 | ret = t4_memory_rw(adapter, 0, mtype, | |
5221 | maddr + size, | |
5222 | 4, &last.word, | |
5223 | T4_MEMORY_WRITE); | |
5224 | } | |
5225 | spin_unlock(&adapter->win0_lock); | |
5226 | } | |
5227 | } | |
5228 | ||
5229 | release_firmware(cf); | |
5230 | if (ret) | |
5231 | goto bye; | |
5232 | } | |
5233 | ||
5234 | /* | |
5235 | * Issue a Capability Configuration command to the firmware to get it | |
5236 | * to parse the Configuration File. We don't use t4_fw_config_file() | |
5237 | * because we want the ability to modify various features after we've | |
5238 | * processed the configuration file ... | |
5239 | */ | |
5240 | memset(&caps_cmd, 0, sizeof(caps_cmd)); | |
5241 | caps_cmd.op_to_write = | |
5242 | htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | | |
5243 | FW_CMD_REQUEST | | |
5244 | FW_CMD_READ); | |
5245 | caps_cmd.cfvalid_to_len16 = | |
5246 | htonl(FW_CAPS_CONFIG_CMD_CFVALID | | |
5247 | FW_CAPS_CONFIG_CMD_MEMTYPE_CF(mtype) | | |
5248 | FW_CAPS_CONFIG_CMD_MEMADDR64K_CF(maddr >> 16) | | |
5249 | FW_LEN16(caps_cmd)); | |
5250 | ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd), | |
5251 | &caps_cmd); | |
5252 | ||
5253 | /* If the CAPS_CONFIG failed with an ENOENT (for a Firmware | |
5254 | * Configuration File in FLASH), our last gasp effort is to use the | |
5255 | * Firmware Configuration File which is embedded in the firmware. A | |
5256 | * very few early versions of the firmware didn't have one embedded | |
5257 | * but we can ignore those. | |
5258 | */ | |
5259 | if (ret == -ENOENT) { | |
5260 | memset(&caps_cmd, 0, sizeof(caps_cmd)); | |
5261 | caps_cmd.op_to_write = | |
5262 | htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | | |
5263 | FW_CMD_REQUEST | | |
5264 | FW_CMD_READ); | |
5265 | caps_cmd.cfvalid_to_len16 = htonl(FW_LEN16(caps_cmd)); | |
5266 | ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, | |
5267 | sizeof(caps_cmd), &caps_cmd); | |
5268 | config_name = "Firmware Default"; | |
5269 | } | |
5270 | ||
5271 | config_issued = 1; | |
5272 | if (ret < 0) | |
5273 | goto bye; | |
5274 | ||
5275 | finiver = ntohl(caps_cmd.finiver); | |
5276 | finicsum = ntohl(caps_cmd.finicsum); | |
5277 | cfcsum = ntohl(caps_cmd.cfcsum); | |
5278 | if (finicsum != cfcsum) | |
5279 | dev_warn(adapter->pdev_dev, "Configuration File checksum "\ | |
5280 | "mismatch: [fini] csum=%#x, computed csum=%#x\n", | |
5281 | finicsum, cfcsum); | |
5282 | ||
5283 | /* | |
5284 | * And now tell the firmware to use the configuration we just loaded. | |
5285 | */ | |
5286 | caps_cmd.op_to_write = | |
5287 | htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | | |
5288 | FW_CMD_REQUEST | | |
5289 | FW_CMD_WRITE); | |
5290 | caps_cmd.cfvalid_to_len16 = htonl(FW_LEN16(caps_cmd)); | |
5291 | ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd), | |
5292 | NULL); | |
5293 | if (ret < 0) | |
5294 | goto bye; | |
5295 | ||
5296 | /* | |
5297 | * Tweak configuration based on system architecture, module | |
5298 | * parameters, etc. | |
5299 | */ | |
5300 | ret = adap_init0_tweaks(adapter); | |
5301 | if (ret < 0) | |
5302 | goto bye; | |
5303 | ||
5304 | /* | |
5305 | * And finally tell the firmware to initialize itself using the | |
5306 | * parameters from the Configuration File. | |
5307 | */ | |
5308 | ret = t4_fw_initialize(adapter, adapter->mbox); | |
5309 | if (ret < 0) | |
5310 | goto bye; | |
5311 | ||
5312 | /* | |
5313 | * Return successfully and note that we're operating with parameters | |
5314 | * not supplied by the driver, rather than from hard-wired | |
5315 | * initialization constants burried in the driver. | |
5316 | */ | |
5317 | adapter->flags |= USING_SOFT_PARAMS; | |
5318 | dev_info(adapter->pdev_dev, "Successfully configured using Firmware "\ | |
5319 | "Configuration File \"%s\", version %#x, computed checksum %#x\n", | |
5320 | config_name, finiver, cfcsum); | |
5321 | return 0; | |
5322 | ||
5323 | /* | |
5324 | * Something bad happened. Return the error ... (If the "error" | |
5325 | * is that there's no Configuration File on the adapter we don't | |
5326 | * want to issue a warning since this is fairly common.) | |
5327 | */ | |
5328 | bye: | |
5329 | if (config_issued && ret != -ENOENT) | |
5330 | dev_warn(adapter->pdev_dev, "\"%s\" configuration file error %d\n", | |
5331 | config_name, -ret); | |
5332 | return ret; | |
5333 | } | |
5334 | ||
5335 | /* | |
5336 | * Attempt to initialize the adapter via hard-coded, driver supplied | |
5337 | * parameters ... | |
5338 | */ | |
5339 | static int adap_init0_no_config(struct adapter *adapter, int reset) | |
5340 | { | |
5341 | struct sge *s = &adapter->sge; | |
5342 | struct fw_caps_config_cmd caps_cmd; | |
5343 | u32 v; | |
5344 | int i, ret; | |
5345 | ||
5346 | /* | |
5347 | * Reset device if necessary | |
5348 | */ | |
5349 | if (reset) { | |
5350 | ret = t4_fw_reset(adapter, adapter->mbox, | |
5351 | PIORSTMODE | PIORST); | |
5352 | if (ret < 0) | |
5353 | goto bye; | |
5354 | } | |
5355 | ||
5356 | /* | |
5357 | * Get device capabilities and select which we'll be using. | |
5358 | */ | |
5359 | memset(&caps_cmd, 0, sizeof(caps_cmd)); | |
5360 | caps_cmd.op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | | |
5361 | FW_CMD_REQUEST | FW_CMD_READ); | |
5362 | caps_cmd.cfvalid_to_len16 = htonl(FW_LEN16(caps_cmd)); | |
5363 | ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd), | |
5364 | &caps_cmd); | |
5365 | if (ret < 0) | |
5366 | goto bye; | |
5367 | ||
5368 | if (caps_cmd.niccaps & htons(FW_CAPS_CONFIG_NIC_VM)) { | |
5369 | if (!vf_acls) | |
5370 | caps_cmd.niccaps ^= htons(FW_CAPS_CONFIG_NIC_VM); | |
5371 | else | |
5372 | caps_cmd.niccaps = htons(FW_CAPS_CONFIG_NIC_VM); | |
5373 | } else if (vf_acls) { | |
5374 | dev_err(adapter->pdev_dev, "virtualization ACLs not supported"); | |
5375 | goto bye; | |
5376 | } | |
5377 | caps_cmd.op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | | |
5378 | FW_CMD_REQUEST | FW_CMD_WRITE); | |
5379 | ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd), | |
5380 | NULL); | |
5381 | if (ret < 0) | |
5382 | goto bye; | |
5383 | ||
5384 | /* | |
5385 | * Tweak configuration based on system architecture, module | |
5386 | * parameters, etc. | |
5387 | */ | |
5388 | ret = adap_init0_tweaks(adapter); | |
5389 | if (ret < 0) | |
5390 | goto bye; | |
5391 | ||
5392 | /* | |
5393 | * Select RSS Global Mode we want to use. We use "Basic Virtual" | |
5394 | * mode which maps each Virtual Interface to its own section of | |
5395 | * the RSS Table and we turn on all map and hash enables ... | |
5396 | */ | |
5397 | adapter->flags |= RSS_TNLALLLOOKUP; | |
5398 | ret = t4_config_glbl_rss(adapter, adapter->mbox, | |
5399 | FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL, | |
5400 | FW_RSS_GLB_CONFIG_CMD_TNLMAPEN | | |
5401 | FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ | | |
5402 | ((adapter->flags & RSS_TNLALLLOOKUP) ? | |
5403 | FW_RSS_GLB_CONFIG_CMD_TNLALLLKP : 0)); | |
5404 | if (ret < 0) | |
5405 | goto bye; | |
5406 | ||
5407 | /* | |
5408 | * Set up our own fundamental resource provisioning ... | |
5409 | */ | |
5410 | ret = t4_cfg_pfvf(adapter, adapter->mbox, adapter->fn, 0, | |
5411 | PFRES_NEQ, PFRES_NETHCTRL, | |
5412 | PFRES_NIQFLINT, PFRES_NIQ, | |
5413 | PFRES_TC, PFRES_NVI, | |
5414 | FW_PFVF_CMD_CMASK_MASK, | |
5415 | pfvfres_pmask(adapter, adapter->fn, 0), | |
5416 | PFRES_NEXACTF, | |
5417 | PFRES_R_CAPS, PFRES_WX_CAPS); | |
5418 | if (ret < 0) | |
5419 | goto bye; | |
5420 | ||
5421 | /* | |
5422 | * Perform low level SGE initialization. We need to do this before we | |
5423 | * send the firmware the INITIALIZE command because that will cause | |
5424 | * any other PF Drivers which are waiting for the Master | |
5425 | * Initialization to proceed forward. | |
5426 | */ | |
5427 | for (i = 0; i < SGE_NTIMERS - 1; i++) | |
5428 | s->timer_val[i] = min(intr_holdoff[i], MAX_SGE_TIMERVAL); | |
5429 | s->timer_val[SGE_NTIMERS - 1] = MAX_SGE_TIMERVAL; | |
5430 | s->counter_val[0] = 1; | |
5431 | for (i = 1; i < SGE_NCOUNTERS; i++) | |
5432 | s->counter_val[i] = min(intr_cnt[i - 1], | |
5433 | THRESHOLD_0_GET(THRESHOLD_0_MASK)); | |
5434 | t4_sge_init(adapter); | |
5435 | ||
5436 | #ifdef CONFIG_PCI_IOV | |
5437 | /* | |
5438 | * Provision resource limits for Virtual Functions. We currently | |
5439 | * grant them all the same static resource limits except for the Port | |
5440 | * Access Rights Mask which we're assigning based on the PF. All of | |
5441 | * the static provisioning stuff for both the PF and VF really needs | |
5442 | * to be managed in a persistent manner for each device which the | |
5443 | * firmware controls. | |
5444 | */ | |
5445 | { | |
5446 | int pf, vf; | |
5447 | ||
5448 | for (pf = 0; pf < ARRAY_SIZE(num_vf); pf++) { | |
5449 | if (num_vf[pf] <= 0) | |
5450 | continue; | |
5451 | ||
5452 | /* VF numbering starts at 1! */ | |
5453 | for (vf = 1; vf <= num_vf[pf]; vf++) { | |
5454 | ret = t4_cfg_pfvf(adapter, adapter->mbox, | |
5455 | pf, vf, | |
5456 | VFRES_NEQ, VFRES_NETHCTRL, | |
5457 | VFRES_NIQFLINT, VFRES_NIQ, | |
5458 | VFRES_TC, VFRES_NVI, | |
5459 | FW_PFVF_CMD_CMASK_MASK, | |
5460 | pfvfres_pmask( | |
5461 | adapter, pf, vf), | |
5462 | VFRES_NEXACTF, | |
5463 | VFRES_R_CAPS, VFRES_WX_CAPS); | |
5464 | if (ret < 0) | |
5465 | dev_warn(adapter->pdev_dev, | |
5466 | "failed to "\ | |
5467 | "provision pf/vf=%d/%d; " | |
5468 | "err=%d\n", pf, vf, ret); | |
5469 | } | |
5470 | } | |
5471 | } | |
5472 | #endif | |
5473 | ||
5474 | /* | |
5475 | * Set up the default filter mode. Later we'll want to implement this | |
5476 | * via a firmware command, etc. ... This needs to be done before the | |
5477 | * firmare initialization command ... If the selected set of fields | |
5478 | * isn't equal to the default value, we'll need to make sure that the | |
5479 | * field selections will fit in the 36-bit budget. | |
5480 | */ | |
5481 | if (tp_vlan_pri_map != TP_VLAN_PRI_MAP_DEFAULT) { | |
5482 | int j, bits = 0; | |
5483 | ||
5484 | for (j = TP_VLAN_PRI_MAP_FIRST; j <= TP_VLAN_PRI_MAP_LAST; j++) | |
5485 | switch (tp_vlan_pri_map & (1 << j)) { | |
5486 | case 0: | |
5487 | /* compressed filter field not enabled */ | |
5488 | break; | |
5489 | case FCOE_MASK: | |
5490 | bits += 1; | |
5491 | break; | |
5492 | case PORT_MASK: | |
5493 | bits += 3; | |
5494 | break; | |
5495 | case VNIC_ID_MASK: | |
5496 | bits += 17; | |
5497 | break; | |
5498 | case VLAN_MASK: | |
5499 | bits += 17; | |
5500 | break; | |
5501 | case TOS_MASK: | |
5502 | bits += 8; | |
5503 | break; | |
5504 | case PROTOCOL_MASK: | |
5505 | bits += 8; | |
5506 | break; | |
5507 | case ETHERTYPE_MASK: | |
5508 | bits += 16; | |
5509 | break; | |
5510 | case MACMATCH_MASK: | |
5511 | bits += 9; | |
5512 | break; | |
5513 | case MPSHITTYPE_MASK: | |
5514 | bits += 3; | |
5515 | break; | |
5516 | case FRAGMENTATION_MASK: | |
5517 | bits += 1; | |
5518 | break; | |
5519 | } | |
5520 | ||
5521 | if (bits > 36) { | |
5522 | dev_err(adapter->pdev_dev, | |
5523 | "tp_vlan_pri_map=%#x needs %d bits > 36;"\ | |
5524 | " using %#x\n", tp_vlan_pri_map, bits, | |
5525 | TP_VLAN_PRI_MAP_DEFAULT); | |
5526 | tp_vlan_pri_map = TP_VLAN_PRI_MAP_DEFAULT; | |
5527 | } | |
5528 | } | |
5529 | v = tp_vlan_pri_map; | |
5530 | t4_write_indirect(adapter, TP_PIO_ADDR, TP_PIO_DATA, | |
5531 | &v, 1, TP_VLAN_PRI_MAP); | |
5532 | ||
5533 | /* | |
5534 | * We need Five Tuple Lookup mode to be set in TP_GLOBAL_CONFIG order | |
5535 | * to support any of the compressed filter fields above. Newer | |
5536 | * versions of the firmware do this automatically but it doesn't hurt | |
5537 | * to set it here. Meanwhile, we do _not_ need to set Lookup Every | |
5538 | * Packet in TP_INGRESS_CONFIG to support matching non-TCP packets | |
5539 | * since the firmware automatically turns this on and off when we have | |
5540 | * a non-zero number of filters active (since it does have a | |
5541 | * performance impact). | |
5542 | */ | |
5543 | if (tp_vlan_pri_map) | |
5544 | t4_set_reg_field(adapter, TP_GLOBAL_CONFIG, | |
5545 | FIVETUPLELOOKUP_MASK, | |
5546 | FIVETUPLELOOKUP_MASK); | |
5547 | ||
5548 | /* | |
5549 | * Tweak some settings. | |
5550 | */ | |
5551 | t4_write_reg(adapter, TP_SHIFT_CNT, SYNSHIFTMAX(6) | | |
5552 | RXTSHIFTMAXR1(4) | RXTSHIFTMAXR2(15) | | |
5553 | PERSHIFTBACKOFFMAX(8) | PERSHIFTMAX(8) | | |
5554 | KEEPALIVEMAXR1(4) | KEEPALIVEMAXR2(9)); | |
5555 | ||
5556 | /* | |
5557 | * Get basic stuff going by issuing the Firmware Initialize command. | |
5558 | * Note that this _must_ be after all PFVF commands ... | |
5559 | */ | |
5560 | ret = t4_fw_initialize(adapter, adapter->mbox); | |
5561 | if (ret < 0) | |
5562 | goto bye; | |
5563 | ||
5564 | /* | |
5565 | * Return successfully! | |
5566 | */ | |
5567 | dev_info(adapter->pdev_dev, "Successfully configured using built-in "\ | |
5568 | "driver parameters\n"); | |
5569 | return 0; | |
5570 | ||
5571 | /* | |
5572 | * Something bad happened. Return the error ... | |
5573 | */ | |
5574 | bye: | |
5575 | return ret; | |
5576 | } | |
5577 | ||
5578 | static struct fw_info fw_info_array[] = { | |
5579 | { | |
5580 | .chip = CHELSIO_T4, | |
5581 | .fs_name = FW4_CFNAME, | |
5582 | .fw_mod_name = FW4_FNAME, | |
5583 | .fw_hdr = { | |
5584 | .chip = FW_HDR_CHIP_T4, | |
5585 | .fw_ver = __cpu_to_be32(FW_VERSION(T4)), | |
5586 | .intfver_nic = FW_INTFVER(T4, NIC), | |
5587 | .intfver_vnic = FW_INTFVER(T4, VNIC), | |
5588 | .intfver_ri = FW_INTFVER(T4, RI), | |
5589 | .intfver_iscsi = FW_INTFVER(T4, ISCSI), | |
5590 | .intfver_fcoe = FW_INTFVER(T4, FCOE), | |
5591 | }, | |
5592 | }, { | |
5593 | .chip = CHELSIO_T5, | |
5594 | .fs_name = FW5_CFNAME, | |
5595 | .fw_mod_name = FW5_FNAME, | |
5596 | .fw_hdr = { | |
5597 | .chip = FW_HDR_CHIP_T5, | |
5598 | .fw_ver = __cpu_to_be32(FW_VERSION(T5)), | |
5599 | .intfver_nic = FW_INTFVER(T5, NIC), | |
5600 | .intfver_vnic = FW_INTFVER(T5, VNIC), | |
5601 | .intfver_ri = FW_INTFVER(T5, RI), | |
5602 | .intfver_iscsi = FW_INTFVER(T5, ISCSI), | |
5603 | .intfver_fcoe = FW_INTFVER(T5, FCOE), | |
5604 | }, | |
5605 | } | |
5606 | }; | |
5607 | ||
5608 | static struct fw_info *find_fw_info(int chip) | |
5609 | { | |
5610 | int i; | |
5611 | ||
5612 | for (i = 0; i < ARRAY_SIZE(fw_info_array); i++) { | |
5613 | if (fw_info_array[i].chip == chip) | |
5614 | return &fw_info_array[i]; | |
5615 | } | |
5616 | return NULL; | |
5617 | } | |
5618 | ||
5619 | /* | |
5620 | * Phase 0 of initialization: contact FW, obtain config, perform basic init. | |
5621 | */ | |
5622 | static int adap_init0(struct adapter *adap) | |
5623 | { | |
5624 | int ret; | |
5625 | u32 v, port_vec; | |
5626 | enum dev_state state; | |
5627 | u32 params[7], val[7]; | |
5628 | struct fw_caps_config_cmd caps_cmd; | |
5629 | int reset = 1; | |
5630 | ||
5631 | /* | |
5632 | * Contact FW, advertising Master capability (and potentially forcing | |
5633 | * ourselves as the Master PF if our module parameter force_init is | |
5634 | * set). | |
5635 | */ | |
5636 | ret = t4_fw_hello(adap, adap->mbox, adap->fn, | |
5637 | force_init ? MASTER_MUST : MASTER_MAY, | |
5638 | &state); | |
5639 | if (ret < 0) { | |
5640 | dev_err(adap->pdev_dev, "could not connect to FW, error %d\n", | |
5641 | ret); | |
5642 | return ret; | |
5643 | } | |
5644 | if (ret == adap->mbox) | |
5645 | adap->flags |= MASTER_PF; | |
5646 | if (force_init && state == DEV_STATE_INIT) | |
5647 | state = DEV_STATE_UNINIT; | |
5648 | ||
5649 | /* | |
5650 | * If we're the Master PF Driver and the device is uninitialized, | |
5651 | * then let's consider upgrading the firmware ... (We always want | |
5652 | * to check the firmware version number in order to A. get it for | |
5653 | * later reporting and B. to warn if the currently loaded firmware | |
5654 | * is excessively mismatched relative to the driver.) | |
5655 | */ | |
5656 | t4_get_fw_version(adap, &adap->params.fw_vers); | |
5657 | t4_get_tp_version(adap, &adap->params.tp_vers); | |
5658 | if ((adap->flags & MASTER_PF) && state != DEV_STATE_INIT) { | |
5659 | struct fw_info *fw_info; | |
5660 | struct fw_hdr *card_fw; | |
5661 | const struct firmware *fw; | |
5662 | const u8 *fw_data = NULL; | |
5663 | unsigned int fw_size = 0; | |
5664 | ||
5665 | /* This is the firmware whose headers the driver was compiled | |
5666 | * against | |
5667 | */ | |
5668 | fw_info = find_fw_info(CHELSIO_CHIP_VERSION(adap->params.chip)); | |
5669 | if (fw_info == NULL) { | |
5670 | dev_err(adap->pdev_dev, | |
5671 | "unable to get firmware info for chip %d.\n", | |
5672 | CHELSIO_CHIP_VERSION(adap->params.chip)); | |
5673 | return -EINVAL; | |
5674 | } | |
5675 | ||
5676 | /* allocate memory to read the header of the firmware on the | |
5677 | * card | |
5678 | */ | |
5679 | card_fw = t4_alloc_mem(sizeof(*card_fw)); | |
5680 | ||
5681 | /* Get FW from from /lib/firmware/ */ | |
5682 | ret = request_firmware(&fw, fw_info->fw_mod_name, | |
5683 | adap->pdev_dev); | |
5684 | if (ret < 0) { | |
5685 | dev_err(adap->pdev_dev, | |
5686 | "unable to load firmware image %s, error %d\n", | |
5687 | fw_info->fw_mod_name, ret); | |
5688 | } else { | |
5689 | fw_data = fw->data; | |
5690 | fw_size = fw->size; | |
5691 | } | |
5692 | ||
5693 | /* upgrade FW logic */ | |
5694 | ret = t4_prep_fw(adap, fw_info, fw_data, fw_size, card_fw, | |
5695 | state, &reset); | |
5696 | ||
5697 | /* Cleaning up */ | |
5698 | if (fw != NULL) | |
5699 | release_firmware(fw); | |
5700 | t4_free_mem(card_fw); | |
5701 | ||
5702 | if (ret < 0) | |
5703 | goto bye; | |
5704 | } | |
5705 | ||
5706 | /* | |
5707 | * Grab VPD parameters. This should be done after we establish a | |
5708 | * connection to the firmware since some of the VPD parameters | |
5709 | * (notably the Core Clock frequency) are retrieved via requests to | |
5710 | * the firmware. On the other hand, we need these fairly early on | |
5711 | * so we do this right after getting ahold of the firmware. | |
5712 | */ | |
5713 | ret = get_vpd_params(adap, &adap->params.vpd); | |
5714 | if (ret < 0) | |
5715 | goto bye; | |
5716 | ||
5717 | /* | |
5718 | * Find out what ports are available to us. Note that we need to do | |
5719 | * this before calling adap_init0_no_config() since it needs nports | |
5720 | * and portvec ... | |
5721 | */ | |
5722 | v = | |
5723 | FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | | |
5724 | FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_PORTVEC); | |
5725 | ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 1, &v, &port_vec); | |
5726 | if (ret < 0) | |
5727 | goto bye; | |
5728 | ||
5729 | adap->params.nports = hweight32(port_vec); | |
5730 | adap->params.portvec = port_vec; | |
5731 | ||
5732 | /* | |
5733 | * If the firmware is initialized already (and we're not forcing a | |
5734 | * master initialization), note that we're living with existing | |
5735 | * adapter parameters. Otherwise, it's time to try initializing the | |
5736 | * adapter ... | |
5737 | */ | |
5738 | if (state == DEV_STATE_INIT) { | |
5739 | dev_info(adap->pdev_dev, "Coming up as %s: "\ | |
5740 | "Adapter already initialized\n", | |
5741 | adap->flags & MASTER_PF ? "MASTER" : "SLAVE"); | |
5742 | adap->flags |= USING_SOFT_PARAMS; | |
5743 | } else { | |
5744 | dev_info(adap->pdev_dev, "Coming up as MASTER: "\ | |
5745 | "Initializing adapter\n"); | |
5746 | ||
5747 | /* | |
5748 | * If the firmware doesn't support Configuration | |
5749 | * Files warn user and exit, | |
5750 | */ | |
5751 | if (ret < 0) | |
5752 | dev_warn(adap->pdev_dev, "Firmware doesn't support " | |
5753 | "configuration file.\n"); | |
5754 | if (force_old_init) | |
5755 | ret = adap_init0_no_config(adap, reset); | |
5756 | else { | |
5757 | /* | |
5758 | * Find out whether we're dealing with a version of | |
5759 | * the firmware which has configuration file support. | |
5760 | */ | |
5761 | params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | | |
5762 | FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_CF)); | |
5763 | ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 1, | |
5764 | params, val); | |
5765 | ||
5766 | /* | |
5767 | * If the firmware doesn't support Configuration | |
5768 | * Files, use the old Driver-based, hard-wired | |
5769 | * initialization. Otherwise, try using the | |
5770 | * Configuration File support and fall back to the | |
5771 | * Driver-based initialization if there's no | |
5772 | * Configuration File found. | |
5773 | */ | |
5774 | if (ret < 0) | |
5775 | ret = adap_init0_no_config(adap, reset); | |
5776 | else { | |
5777 | /* | |
5778 | * The firmware provides us with a memory | |
5779 | * buffer where we can load a Configuration | |
5780 | * File from the host if we want to override | |
5781 | * the Configuration File in flash. | |
5782 | */ | |
5783 | ||
5784 | ret = adap_init0_config(adap, reset); | |
5785 | if (ret == -ENOENT) { | |
5786 | dev_info(adap->pdev_dev, | |
5787 | "No Configuration File present " | |
5788 | "on adapter. Using hard-wired " | |
5789 | "configuration parameters.\n"); | |
5790 | ret = adap_init0_no_config(adap, reset); | |
5791 | } | |
5792 | } | |
5793 | } | |
5794 | if (ret < 0) { | |
5795 | dev_err(adap->pdev_dev, | |
5796 | "could not initialize adapter, error %d\n", | |
5797 | -ret); | |
5798 | goto bye; | |
5799 | } | |
5800 | } | |
5801 | ||
5802 | /* | |
5803 | * If we're living with non-hard-coded parameters (either from a | |
5804 | * Firmware Configuration File or values programmed by a different PF | |
5805 | * Driver), give the SGE code a chance to pull in anything that it | |
5806 | * needs ... Note that this must be called after we retrieve our VPD | |
5807 | * parameters in order to know how to convert core ticks to seconds. | |
5808 | */ | |
5809 | if (adap->flags & USING_SOFT_PARAMS) { | |
5810 | ret = t4_sge_init(adap); | |
5811 | if (ret < 0) | |
5812 | goto bye; | |
5813 | } | |
5814 | ||
5815 | if (is_bypass_device(adap->pdev->device)) | |
5816 | adap->params.bypass = 1; | |
5817 | ||
5818 | /* | |
5819 | * Grab some of our basic fundamental operating parameters. | |
5820 | */ | |
5821 | #define FW_PARAM_DEV(param) \ | |
5822 | (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | \ | |
5823 | FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_##param)) | |
5824 | ||
5825 | #define FW_PARAM_PFVF(param) \ | |
5826 | FW_PARAMS_MNEM(FW_PARAMS_MNEM_PFVF) | \ | |
5827 | FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_PFVF_##param)| \ | |
5828 | FW_PARAMS_PARAM_Y(0) | \ | |
5829 | FW_PARAMS_PARAM_Z(0) | |
5830 | ||
5831 | params[0] = FW_PARAM_PFVF(EQ_START); | |
5832 | params[1] = FW_PARAM_PFVF(L2T_START); | |
5833 | params[2] = FW_PARAM_PFVF(L2T_END); | |
5834 | params[3] = FW_PARAM_PFVF(FILTER_START); | |
5835 | params[4] = FW_PARAM_PFVF(FILTER_END); | |
5836 | params[5] = FW_PARAM_PFVF(IQFLINT_START); | |
5837 | ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 6, params, val); | |
5838 | if (ret < 0) | |
5839 | goto bye; | |
5840 | adap->sge.egr_start = val[0]; | |
5841 | adap->l2t_start = val[1]; | |
5842 | adap->l2t_end = val[2]; | |
5843 | adap->tids.ftid_base = val[3]; | |
5844 | adap->tids.nftids = val[4] - val[3] + 1; | |
5845 | adap->sge.ingr_start = val[5]; | |
5846 | ||
5847 | /* query params related to active filter region */ | |
5848 | params[0] = FW_PARAM_PFVF(ACTIVE_FILTER_START); | |
5849 | params[1] = FW_PARAM_PFVF(ACTIVE_FILTER_END); | |
5850 | ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 2, params, val); | |
5851 | /* If Active filter size is set we enable establishing | |
5852 | * offload connection through firmware work request | |
5853 | */ | |
5854 | if ((val[0] != val[1]) && (ret >= 0)) { | |
5855 | adap->flags |= FW_OFLD_CONN; | |
5856 | adap->tids.aftid_base = val[0]; | |
5857 | adap->tids.aftid_end = val[1]; | |
5858 | } | |
5859 | ||
5860 | /* If we're running on newer firmware, let it know that we're | |
5861 | * prepared to deal with encapsulated CPL messages. Older | |
5862 | * firmware won't understand this and we'll just get | |
5863 | * unencapsulated messages ... | |
5864 | */ | |
5865 | params[0] = FW_PARAM_PFVF(CPLFW4MSG_ENCAP); | |
5866 | val[0] = 1; | |
5867 | (void) t4_set_params(adap, adap->mbox, adap->fn, 0, 1, params, val); | |
5868 | ||
5869 | /* | |
5870 | * Find out whether we're allowed to use the T5+ ULPTX MEMWRITE DSGL | |
5871 | * capability. Earlier versions of the firmware didn't have the | |
5872 | * ULPTX_MEMWRITE_DSGL so we'll interpret a query failure as no | |
5873 | * permission to use ULPTX MEMWRITE DSGL. | |
5874 | */ | |
5875 | if (is_t4(adap->params.chip)) { | |
5876 | adap->params.ulptx_memwrite_dsgl = false; | |
5877 | } else { | |
5878 | params[0] = FW_PARAM_DEV(ULPTX_MEMWRITE_DSGL); | |
5879 | ret = t4_query_params(adap, adap->mbox, adap->fn, 0, | |
5880 | 1, params, val); | |
5881 | adap->params.ulptx_memwrite_dsgl = (ret == 0 && val[0] != 0); | |
5882 | } | |
5883 | ||
5884 | /* | |
5885 | * Get device capabilities so we can determine what resources we need | |
5886 | * to manage. | |
5887 | */ | |
5888 | memset(&caps_cmd, 0, sizeof(caps_cmd)); | |
5889 | caps_cmd.op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | | |
5890 | FW_CMD_REQUEST | FW_CMD_READ); | |
5891 | caps_cmd.cfvalid_to_len16 = htonl(FW_LEN16(caps_cmd)); | |
5892 | ret = t4_wr_mbox(adap, adap->mbox, &caps_cmd, sizeof(caps_cmd), | |
5893 | &caps_cmd); | |
5894 | if (ret < 0) | |
5895 | goto bye; | |
5896 | ||
5897 | if (caps_cmd.ofldcaps) { | |
5898 | /* query offload-related parameters */ | |
5899 | params[0] = FW_PARAM_DEV(NTID); | |
5900 | params[1] = FW_PARAM_PFVF(SERVER_START); | |
5901 | params[2] = FW_PARAM_PFVF(SERVER_END); | |
5902 | params[3] = FW_PARAM_PFVF(TDDP_START); | |
5903 | params[4] = FW_PARAM_PFVF(TDDP_END); | |
5904 | params[5] = FW_PARAM_DEV(FLOWC_BUFFIFO_SZ); | |
5905 | ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 6, | |
5906 | params, val); | |
5907 | if (ret < 0) | |
5908 | goto bye; | |
5909 | adap->tids.ntids = val[0]; | |
5910 | adap->tids.natids = min(adap->tids.ntids / 2, MAX_ATIDS); | |
5911 | adap->tids.stid_base = val[1]; | |
5912 | adap->tids.nstids = val[2] - val[1] + 1; | |
5913 | /* | |
5914 | * Setup server filter region. Divide the availble filter | |
5915 | * region into two parts. Regular filters get 1/3rd and server | |
5916 | * filters get 2/3rd part. This is only enabled if workarond | |
5917 | * path is enabled. | |
5918 | * 1. For regular filters. | |
5919 | * 2. Server filter: This are special filters which are used | |
5920 | * to redirect SYN packets to offload queue. | |
5921 | */ | |
5922 | if (adap->flags & FW_OFLD_CONN && !is_bypass(adap)) { | |
5923 | adap->tids.sftid_base = adap->tids.ftid_base + | |
5924 | DIV_ROUND_UP(adap->tids.nftids, 3); | |
5925 | adap->tids.nsftids = adap->tids.nftids - | |
5926 | DIV_ROUND_UP(adap->tids.nftids, 3); | |
5927 | adap->tids.nftids = adap->tids.sftid_base - | |
5928 | adap->tids.ftid_base; | |
5929 | } | |
5930 | adap->vres.ddp.start = val[3]; | |
5931 | adap->vres.ddp.size = val[4] - val[3] + 1; | |
5932 | adap->params.ofldq_wr_cred = val[5]; | |
5933 | ||
5934 | adap->params.offload = 1; | |
5935 | } | |
5936 | if (caps_cmd.rdmacaps) { | |
5937 | params[0] = FW_PARAM_PFVF(STAG_START); | |
5938 | params[1] = FW_PARAM_PFVF(STAG_END); | |
5939 | params[2] = FW_PARAM_PFVF(RQ_START); | |
5940 | params[3] = FW_PARAM_PFVF(RQ_END); | |
5941 | params[4] = FW_PARAM_PFVF(PBL_START); | |
5942 | params[5] = FW_PARAM_PFVF(PBL_END); | |
5943 | ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 6, | |
5944 | params, val); | |
5945 | if (ret < 0) | |
5946 | goto bye; | |
5947 | adap->vres.stag.start = val[0]; | |
5948 | adap->vres.stag.size = val[1] - val[0] + 1; | |
5949 | adap->vres.rq.start = val[2]; | |
5950 | adap->vres.rq.size = val[3] - val[2] + 1; | |
5951 | adap->vres.pbl.start = val[4]; | |
5952 | adap->vres.pbl.size = val[5] - val[4] + 1; | |
5953 | ||
5954 | params[0] = FW_PARAM_PFVF(SQRQ_START); | |
5955 | params[1] = FW_PARAM_PFVF(SQRQ_END); | |
5956 | params[2] = FW_PARAM_PFVF(CQ_START); | |
5957 | params[3] = FW_PARAM_PFVF(CQ_END); | |
5958 | params[4] = FW_PARAM_PFVF(OCQ_START); | |
5959 | params[5] = FW_PARAM_PFVF(OCQ_END); | |
5960 | ret = t4_query_params(adap, 0, 0, 0, 6, params, val); | |
5961 | if (ret < 0) | |
5962 | goto bye; | |
5963 | adap->vres.qp.start = val[0]; | |
5964 | adap->vres.qp.size = val[1] - val[0] + 1; | |
5965 | adap->vres.cq.start = val[2]; | |
5966 | adap->vres.cq.size = val[3] - val[2] + 1; | |
5967 | adap->vres.ocq.start = val[4]; | |
5968 | adap->vres.ocq.size = val[5] - val[4] + 1; | |
5969 | ||
5970 | params[0] = FW_PARAM_DEV(MAXORDIRD_QP); | |
5971 | params[1] = FW_PARAM_DEV(MAXIRD_ADAPTER); | |
5972 | ret = t4_query_params(adap, 0, 0, 0, 2, params, val); | |
5973 | if (ret < 0) { | |
5974 | adap->params.max_ordird_qp = 8; | |
5975 | adap->params.max_ird_adapter = 32 * adap->tids.ntids; | |
5976 | ret = 0; | |
5977 | } else { | |
5978 | adap->params.max_ordird_qp = val[0]; | |
5979 | adap->params.max_ird_adapter = val[1]; | |
5980 | } | |
5981 | dev_info(adap->pdev_dev, | |
5982 | "max_ordird_qp %d max_ird_adapter %d\n", | |
5983 | adap->params.max_ordird_qp, | |
5984 | adap->params.max_ird_adapter); | |
5985 | } | |
5986 | if (caps_cmd.iscsicaps) { | |
5987 | params[0] = FW_PARAM_PFVF(ISCSI_START); | |
5988 | params[1] = FW_PARAM_PFVF(ISCSI_END); | |
5989 | ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 2, | |
5990 | params, val); | |
5991 | if (ret < 0) | |
5992 | goto bye; | |
5993 | adap->vres.iscsi.start = val[0]; | |
5994 | adap->vres.iscsi.size = val[1] - val[0] + 1; | |
5995 | } | |
5996 | #undef FW_PARAM_PFVF | |
5997 | #undef FW_PARAM_DEV | |
5998 | ||
5999 | /* The MTU/MSS Table is initialized by now, so load their values. If | |
6000 | * we're initializing the adapter, then we'll make any modifications | |
6001 | * we want to the MTU/MSS Table and also initialize the congestion | |
6002 | * parameters. | |
6003 | */ | |
6004 | t4_read_mtu_tbl(adap, adap->params.mtus, NULL); | |
6005 | if (state != DEV_STATE_INIT) { | |
6006 | int i; | |
6007 | ||
6008 | /* The default MTU Table contains values 1492 and 1500. | |
6009 | * However, for TCP, it's better to have two values which are | |
6010 | * a multiple of 8 +/- 4 bytes apart near this popular MTU. | |
6011 | * This allows us to have a TCP Data Payload which is a | |
6012 | * multiple of 8 regardless of what combination of TCP Options | |
6013 | * are in use (always a multiple of 4 bytes) which is | |
6014 | * important for performance reasons. For instance, if no | |
6015 | * options are in use, then we have a 20-byte IP header and a | |
6016 | * 20-byte TCP header. In this case, a 1500-byte MSS would | |
6017 | * result in a TCP Data Payload of 1500 - 40 == 1460 bytes | |
6018 | * which is not a multiple of 8. So using an MSS of 1488 in | |
6019 | * this case results in a TCP Data Payload of 1448 bytes which | |
6020 | * is a multiple of 8. On the other hand, if 12-byte TCP Time | |
6021 | * Stamps have been negotiated, then an MTU of 1500 bytes | |
6022 | * results in a TCP Data Payload of 1448 bytes which, as | |
6023 | * above, is a multiple of 8 bytes ... | |
6024 | */ | |
6025 | for (i = 0; i < NMTUS; i++) | |
6026 | if (adap->params.mtus[i] == 1492) { | |
6027 | adap->params.mtus[i] = 1488; | |
6028 | break; | |
6029 | } | |
6030 | ||
6031 | t4_load_mtus(adap, adap->params.mtus, adap->params.a_wnd, | |
6032 | adap->params.b_wnd); | |
6033 | } | |
6034 | t4_init_tp_params(adap); | |
6035 | adap->flags |= FW_OK; | |
6036 | return 0; | |
6037 | ||
6038 | /* | |
6039 | * Something bad happened. If a command timed out or failed with EIO | |
6040 | * FW does not operate within its spec or something catastrophic | |
6041 | * happened to HW/FW, stop issuing commands. | |
6042 | */ | |
6043 | bye: | |
6044 | if (ret != -ETIMEDOUT && ret != -EIO) | |
6045 | t4_fw_bye(adap, adap->mbox); | |
6046 | return ret; | |
6047 | } | |
6048 | ||
6049 | /* EEH callbacks */ | |
6050 | ||
6051 | static pci_ers_result_t eeh_err_detected(struct pci_dev *pdev, | |
6052 | pci_channel_state_t state) | |
6053 | { | |
6054 | int i; | |
6055 | struct adapter *adap = pci_get_drvdata(pdev); | |
6056 | ||
6057 | if (!adap) | |
6058 | goto out; | |
6059 | ||
6060 | rtnl_lock(); | |
6061 | adap->flags &= ~FW_OK; | |
6062 | notify_ulds(adap, CXGB4_STATE_START_RECOVERY); | |
6063 | spin_lock(&adap->stats_lock); | |
6064 | for_each_port(adap, i) { | |
6065 | struct net_device *dev = adap->port[i]; | |
6066 | ||
6067 | netif_device_detach(dev); | |
6068 | netif_carrier_off(dev); | |
6069 | } | |
6070 | spin_unlock(&adap->stats_lock); | |
6071 | if (adap->flags & FULL_INIT_DONE) | |
6072 | cxgb_down(adap); | |
6073 | rtnl_unlock(); | |
6074 | if ((adap->flags & DEV_ENABLED)) { | |
6075 | pci_disable_device(pdev); | |
6076 | adap->flags &= ~DEV_ENABLED; | |
6077 | } | |
6078 | out: return state == pci_channel_io_perm_failure ? | |
6079 | PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_NEED_RESET; | |
6080 | } | |
6081 | ||
6082 | static pci_ers_result_t eeh_slot_reset(struct pci_dev *pdev) | |
6083 | { | |
6084 | int i, ret; | |
6085 | struct fw_caps_config_cmd c; | |
6086 | struct adapter *adap = pci_get_drvdata(pdev); | |
6087 | ||
6088 | if (!adap) { | |
6089 | pci_restore_state(pdev); | |
6090 | pci_save_state(pdev); | |
6091 | return PCI_ERS_RESULT_RECOVERED; | |
6092 | } | |
6093 | ||
6094 | if (!(adap->flags & DEV_ENABLED)) { | |
6095 | if (pci_enable_device(pdev)) { | |
6096 | dev_err(&pdev->dev, "Cannot reenable PCI " | |
6097 | "device after reset\n"); | |
6098 | return PCI_ERS_RESULT_DISCONNECT; | |
6099 | } | |
6100 | adap->flags |= DEV_ENABLED; | |
6101 | } | |
6102 | ||
6103 | pci_set_master(pdev); | |
6104 | pci_restore_state(pdev); | |
6105 | pci_save_state(pdev); | |
6106 | pci_cleanup_aer_uncorrect_error_status(pdev); | |
6107 | ||
6108 | if (t4_wait_dev_ready(adap) < 0) | |
6109 | return PCI_ERS_RESULT_DISCONNECT; | |
6110 | if (t4_fw_hello(adap, adap->fn, adap->fn, MASTER_MUST, NULL) < 0) | |
6111 | return PCI_ERS_RESULT_DISCONNECT; | |
6112 | adap->flags |= FW_OK; | |
6113 | if (adap_init1(adap, &c)) | |
6114 | return PCI_ERS_RESULT_DISCONNECT; | |
6115 | ||
6116 | for_each_port(adap, i) { | |
6117 | struct port_info *p = adap2pinfo(adap, i); | |
6118 | ||
6119 | ret = t4_alloc_vi(adap, adap->fn, p->tx_chan, adap->fn, 0, 1, | |
6120 | NULL, NULL); | |
6121 | if (ret < 0) | |
6122 | return PCI_ERS_RESULT_DISCONNECT; | |
6123 | p->viid = ret; | |
6124 | p->xact_addr_filt = -1; | |
6125 | } | |
6126 | ||
6127 | t4_load_mtus(adap, adap->params.mtus, adap->params.a_wnd, | |
6128 | adap->params.b_wnd); | |
6129 | setup_memwin(adap); | |
6130 | if (cxgb_up(adap)) | |
6131 | return PCI_ERS_RESULT_DISCONNECT; | |
6132 | return PCI_ERS_RESULT_RECOVERED; | |
6133 | } | |
6134 | ||
6135 | static void eeh_resume(struct pci_dev *pdev) | |
6136 | { | |
6137 | int i; | |
6138 | struct adapter *adap = pci_get_drvdata(pdev); | |
6139 | ||
6140 | if (!adap) | |
6141 | return; | |
6142 | ||
6143 | rtnl_lock(); | |
6144 | for_each_port(adap, i) { | |
6145 | struct net_device *dev = adap->port[i]; | |
6146 | ||
6147 | if (netif_running(dev)) { | |
6148 | link_start(dev); | |
6149 | cxgb_set_rxmode(dev); | |
6150 | } | |
6151 | netif_device_attach(dev); | |
6152 | } | |
6153 | rtnl_unlock(); | |
6154 | } | |
6155 | ||
6156 | static const struct pci_error_handlers cxgb4_eeh = { | |
6157 | .error_detected = eeh_err_detected, | |
6158 | .slot_reset = eeh_slot_reset, | |
6159 | .resume = eeh_resume, | |
6160 | }; | |
6161 | ||
6162 | static inline bool is_x_10g_port(const struct link_config *lc) | |
6163 | { | |
6164 | return (lc->supported & FW_PORT_CAP_SPEED_10G) != 0 || | |
6165 | (lc->supported & FW_PORT_CAP_SPEED_40G) != 0; | |
6166 | } | |
6167 | ||
6168 | static inline void init_rspq(struct adapter *adap, struct sge_rspq *q, | |
6169 | unsigned int us, unsigned int cnt, | |
6170 | unsigned int size, unsigned int iqe_size) | |
6171 | { | |
6172 | q->adap = adap; | |
6173 | set_rspq_intr_params(q, us, cnt); | |
6174 | q->iqe_len = iqe_size; | |
6175 | q->size = size; | |
6176 | } | |
6177 | ||
6178 | /* | |
6179 | * Perform default configuration of DMA queues depending on the number and type | |
6180 | * of ports we found and the number of available CPUs. Most settings can be | |
6181 | * modified by the admin prior to actual use. | |
6182 | */ | |
6183 | static void cfg_queues(struct adapter *adap) | |
6184 | { | |
6185 | struct sge *s = &adap->sge; | |
6186 | int i, n10g = 0, qidx = 0; | |
6187 | #ifndef CONFIG_CHELSIO_T4_DCB | |
6188 | int q10g = 0; | |
6189 | #endif | |
6190 | int ciq_size; | |
6191 | ||
6192 | for_each_port(adap, i) | |
6193 | n10g += is_x_10g_port(&adap2pinfo(adap, i)->link_cfg); | |
6194 | #ifdef CONFIG_CHELSIO_T4_DCB | |
6195 | /* For Data Center Bridging support we need to be able to support up | |
6196 | * to 8 Traffic Priorities; each of which will be assigned to its | |
6197 | * own TX Queue in order to prevent Head-Of-Line Blocking. | |
6198 | */ | |
6199 | if (adap->params.nports * 8 > MAX_ETH_QSETS) { | |
6200 | dev_err(adap->pdev_dev, "MAX_ETH_QSETS=%d < %d!\n", | |
6201 | MAX_ETH_QSETS, adap->params.nports * 8); | |
6202 | BUG_ON(1); | |
6203 | } | |
6204 | ||
6205 | for_each_port(adap, i) { | |
6206 | struct port_info *pi = adap2pinfo(adap, i); | |
6207 | ||
6208 | pi->first_qset = qidx; | |
6209 | pi->nqsets = 8; | |
6210 | qidx += pi->nqsets; | |
6211 | } | |
6212 | #else /* !CONFIG_CHELSIO_T4_DCB */ | |
6213 | /* | |
6214 | * We default to 1 queue per non-10G port and up to # of cores queues | |
6215 | * per 10G port. | |
6216 | */ | |
6217 | if (n10g) | |
6218 | q10g = (MAX_ETH_QSETS - (adap->params.nports - n10g)) / n10g; | |
6219 | if (q10g > netif_get_num_default_rss_queues()) | |
6220 | q10g = netif_get_num_default_rss_queues(); | |
6221 | ||
6222 | for_each_port(adap, i) { | |
6223 | struct port_info *pi = adap2pinfo(adap, i); | |
6224 | ||
6225 | pi->first_qset = qidx; | |
6226 | pi->nqsets = is_x_10g_port(&pi->link_cfg) ? q10g : 1; | |
6227 | qidx += pi->nqsets; | |
6228 | } | |
6229 | #endif /* !CONFIG_CHELSIO_T4_DCB */ | |
6230 | ||
6231 | s->ethqsets = qidx; | |
6232 | s->max_ethqsets = qidx; /* MSI-X may lower it later */ | |
6233 | ||
6234 | if (is_offload(adap)) { | |
6235 | /* | |
6236 | * For offload we use 1 queue/channel if all ports are up to 1G, | |
6237 | * otherwise we divide all available queues amongst the channels | |
6238 | * capped by the number of available cores. | |
6239 | */ | |
6240 | if (n10g) { | |
6241 | i = min_t(int, ARRAY_SIZE(s->ofldrxq), | |
6242 | num_online_cpus()); | |
6243 | s->ofldqsets = roundup(i, adap->params.nports); | |
6244 | } else | |
6245 | s->ofldqsets = adap->params.nports; | |
6246 | /* For RDMA one Rx queue per channel suffices */ | |
6247 | s->rdmaqs = adap->params.nports; | |
6248 | s->rdmaciqs = adap->params.nports; | |
6249 | } | |
6250 | ||
6251 | for (i = 0; i < ARRAY_SIZE(s->ethrxq); i++) { | |
6252 | struct sge_eth_rxq *r = &s->ethrxq[i]; | |
6253 | ||
6254 | init_rspq(adap, &r->rspq, 5, 10, 1024, 64); | |
6255 | r->fl.size = 72; | |
6256 | } | |
6257 | ||
6258 | for (i = 0; i < ARRAY_SIZE(s->ethtxq); i++) | |
6259 | s->ethtxq[i].q.size = 1024; | |
6260 | ||
6261 | for (i = 0; i < ARRAY_SIZE(s->ctrlq); i++) | |
6262 | s->ctrlq[i].q.size = 512; | |
6263 | ||
6264 | for (i = 0; i < ARRAY_SIZE(s->ofldtxq); i++) | |
6265 | s->ofldtxq[i].q.size = 1024; | |
6266 | ||
6267 | for (i = 0; i < ARRAY_SIZE(s->ofldrxq); i++) { | |
6268 | struct sge_ofld_rxq *r = &s->ofldrxq[i]; | |
6269 | ||
6270 | init_rspq(adap, &r->rspq, 5, 1, 1024, 64); | |
6271 | r->rspq.uld = CXGB4_ULD_ISCSI; | |
6272 | r->fl.size = 72; | |
6273 | } | |
6274 | ||
6275 | for (i = 0; i < ARRAY_SIZE(s->rdmarxq); i++) { | |
6276 | struct sge_ofld_rxq *r = &s->rdmarxq[i]; | |
6277 | ||
6278 | init_rspq(adap, &r->rspq, 5, 1, 511, 64); | |
6279 | r->rspq.uld = CXGB4_ULD_RDMA; | |
6280 | r->fl.size = 72; | |
6281 | } | |
6282 | ||
6283 | ciq_size = 64 + adap->vres.cq.size + adap->tids.nftids; | |
6284 | if (ciq_size > SGE_MAX_IQ_SIZE) { | |
6285 | CH_WARN(adap, "CIQ size too small for available IQs\n"); | |
6286 | ciq_size = SGE_MAX_IQ_SIZE; | |
6287 | } | |
6288 | ||
6289 | for (i = 0; i < ARRAY_SIZE(s->rdmaciq); i++) { | |
6290 | struct sge_ofld_rxq *r = &s->rdmaciq[i]; | |
6291 | ||
6292 | init_rspq(adap, &r->rspq, 5, 1, ciq_size, 64); | |
6293 | r->rspq.uld = CXGB4_ULD_RDMA; | |
6294 | } | |
6295 | ||
6296 | init_rspq(adap, &s->fw_evtq, 0, 1, 1024, 64); | |
6297 | init_rspq(adap, &s->intrq, 0, 1, 2 * MAX_INGQ, 64); | |
6298 | } | |
6299 | ||
6300 | /* | |
6301 | * Reduce the number of Ethernet queues across all ports to at most n. | |
6302 | * n provides at least one queue per port. | |
6303 | */ | |
6304 | static void reduce_ethqs(struct adapter *adap, int n) | |
6305 | { | |
6306 | int i; | |
6307 | struct port_info *pi; | |
6308 | ||
6309 | while (n < adap->sge.ethqsets) | |
6310 | for_each_port(adap, i) { | |
6311 | pi = adap2pinfo(adap, i); | |
6312 | if (pi->nqsets > 1) { | |
6313 | pi->nqsets--; | |
6314 | adap->sge.ethqsets--; | |
6315 | if (adap->sge.ethqsets <= n) | |
6316 | break; | |
6317 | } | |
6318 | } | |
6319 | ||
6320 | n = 0; | |
6321 | for_each_port(adap, i) { | |
6322 | pi = adap2pinfo(adap, i); | |
6323 | pi->first_qset = n; | |
6324 | n += pi->nqsets; | |
6325 | } | |
6326 | } | |
6327 | ||
6328 | /* 2 MSI-X vectors needed for the FW queue and non-data interrupts */ | |
6329 | #define EXTRA_VECS 2 | |
6330 | ||
6331 | static int enable_msix(struct adapter *adap) | |
6332 | { | |
6333 | int ofld_need = 0; | |
6334 | int i, want, need; | |
6335 | struct sge *s = &adap->sge; | |
6336 | unsigned int nchan = adap->params.nports; | |
6337 | struct msix_entry entries[MAX_INGQ + 1]; | |
6338 | ||
6339 | for (i = 0; i < ARRAY_SIZE(entries); ++i) | |
6340 | entries[i].entry = i; | |
6341 | ||
6342 | want = s->max_ethqsets + EXTRA_VECS; | |
6343 | if (is_offload(adap)) { | |
6344 | want += s->rdmaqs + s->rdmaciqs + s->ofldqsets; | |
6345 | /* need nchan for each possible ULD */ | |
6346 | ofld_need = 3 * nchan; | |
6347 | } | |
6348 | #ifdef CONFIG_CHELSIO_T4_DCB | |
6349 | /* For Data Center Bridging we need 8 Ethernet TX Priority Queues for | |
6350 | * each port. | |
6351 | */ | |
6352 | need = 8 * adap->params.nports + EXTRA_VECS + ofld_need; | |
6353 | #else | |
6354 | need = adap->params.nports + EXTRA_VECS + ofld_need; | |
6355 | #endif | |
6356 | want = pci_enable_msix_range(adap->pdev, entries, need, want); | |
6357 | if (want < 0) | |
6358 | return want; | |
6359 | ||
6360 | /* | |
6361 | * Distribute available vectors to the various queue groups. | |
6362 | * Every group gets its minimum requirement and NIC gets top | |
6363 | * priority for leftovers. | |
6364 | */ | |
6365 | i = want - EXTRA_VECS - ofld_need; | |
6366 | if (i < s->max_ethqsets) { | |
6367 | s->max_ethqsets = i; | |
6368 | if (i < s->ethqsets) | |
6369 | reduce_ethqs(adap, i); | |
6370 | } | |
6371 | if (is_offload(adap)) { | |
6372 | i = want - EXTRA_VECS - s->max_ethqsets; | |
6373 | i -= ofld_need - nchan; | |
6374 | s->ofldqsets = (i / nchan) * nchan; /* round down */ | |
6375 | } | |
6376 | for (i = 0; i < want; ++i) | |
6377 | adap->msix_info[i].vec = entries[i].vector; | |
6378 | ||
6379 | return 0; | |
6380 | } | |
6381 | ||
6382 | #undef EXTRA_VECS | |
6383 | ||
6384 | static int init_rss(struct adapter *adap) | |
6385 | { | |
6386 | unsigned int i, j; | |
6387 | ||
6388 | for_each_port(adap, i) { | |
6389 | struct port_info *pi = adap2pinfo(adap, i); | |
6390 | ||
6391 | pi->rss = kcalloc(pi->rss_size, sizeof(u16), GFP_KERNEL); | |
6392 | if (!pi->rss) | |
6393 | return -ENOMEM; | |
6394 | for (j = 0; j < pi->rss_size; j++) | |
6395 | pi->rss[j] = ethtool_rxfh_indir_default(j, pi->nqsets); | |
6396 | } | |
6397 | return 0; | |
6398 | } | |
6399 | ||
6400 | static void print_port_info(const struct net_device *dev) | |
6401 | { | |
6402 | char buf[80]; | |
6403 | char *bufp = buf; | |
6404 | const char *spd = ""; | |
6405 | const struct port_info *pi = netdev_priv(dev); | |
6406 | const struct adapter *adap = pi->adapter; | |
6407 | ||
6408 | if (adap->params.pci.speed == PCI_EXP_LNKSTA_CLS_2_5GB) | |
6409 | spd = " 2.5 GT/s"; | |
6410 | else if (adap->params.pci.speed == PCI_EXP_LNKSTA_CLS_5_0GB) | |
6411 | spd = " 5 GT/s"; | |
6412 | else if (adap->params.pci.speed == PCI_EXP_LNKSTA_CLS_8_0GB) | |
6413 | spd = " 8 GT/s"; | |
6414 | ||
6415 | if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_100M) | |
6416 | bufp += sprintf(bufp, "100/"); | |
6417 | if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_1G) | |
6418 | bufp += sprintf(bufp, "1000/"); | |
6419 | if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_10G) | |
6420 | bufp += sprintf(bufp, "10G/"); | |
6421 | if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_40G) | |
6422 | bufp += sprintf(bufp, "40G/"); | |
6423 | if (bufp != buf) | |
6424 | --bufp; | |
6425 | sprintf(bufp, "BASE-%s", t4_get_port_type_description(pi->port_type)); | |
6426 | ||
6427 | netdev_info(dev, "Chelsio %s rev %d %s %sNIC PCIe x%d%s%s\n", | |
6428 | adap->params.vpd.id, | |
6429 | CHELSIO_CHIP_RELEASE(adap->params.chip), buf, | |
6430 | is_offload(adap) ? "R" : "", adap->params.pci.width, spd, | |
6431 | (adap->flags & USING_MSIX) ? " MSI-X" : | |
6432 | (adap->flags & USING_MSI) ? " MSI" : ""); | |
6433 | netdev_info(dev, "S/N: %s, P/N: %s\n", | |
6434 | adap->params.vpd.sn, adap->params.vpd.pn); | |
6435 | } | |
6436 | ||
6437 | static void enable_pcie_relaxed_ordering(struct pci_dev *dev) | |
6438 | { | |
6439 | pcie_capability_set_word(dev, PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_RELAX_EN); | |
6440 | } | |
6441 | ||
6442 | /* | |
6443 | * Free the following resources: | |
6444 | * - memory used for tables | |
6445 | * - MSI/MSI-X | |
6446 | * - net devices | |
6447 | * - resources FW is holding for us | |
6448 | */ | |
6449 | static void free_some_resources(struct adapter *adapter) | |
6450 | { | |
6451 | unsigned int i; | |
6452 | ||
6453 | t4_free_mem(adapter->l2t); | |
6454 | t4_free_mem(adapter->tids.tid_tab); | |
6455 | disable_msi(adapter); | |
6456 | ||
6457 | for_each_port(adapter, i) | |
6458 | if (adapter->port[i]) { | |
6459 | kfree(adap2pinfo(adapter, i)->rss); | |
6460 | free_netdev(adapter->port[i]); | |
6461 | } | |
6462 | if (adapter->flags & FW_OK) | |
6463 | t4_fw_bye(adapter, adapter->fn); | |
6464 | } | |
6465 | ||
6466 | #define TSO_FLAGS (NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN) | |
6467 | #define VLAN_FEAT (NETIF_F_SG | NETIF_F_IP_CSUM | TSO_FLAGS | \ | |
6468 | NETIF_F_IPV6_CSUM | NETIF_F_HIGHDMA) | |
6469 | #define SEGMENT_SIZE 128 | |
6470 | ||
6471 | static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent) | |
6472 | { | |
6473 | int func, i, err, s_qpp, qpp, num_seg; | |
6474 | struct port_info *pi; | |
6475 | bool highdma = false; | |
6476 | struct adapter *adapter = NULL; | |
6477 | ||
6478 | printk_once(KERN_INFO "%s - version %s\n", DRV_DESC, DRV_VERSION); | |
6479 | ||
6480 | err = pci_request_regions(pdev, KBUILD_MODNAME); | |
6481 | if (err) { | |
6482 | /* Just info, some other driver may have claimed the device. */ | |
6483 | dev_info(&pdev->dev, "cannot obtain PCI resources\n"); | |
6484 | return err; | |
6485 | } | |
6486 | ||
6487 | err = pci_enable_device(pdev); | |
6488 | if (err) { | |
6489 | dev_err(&pdev->dev, "cannot enable PCI device\n"); | |
6490 | goto out_release_regions; | |
6491 | } | |
6492 | ||
6493 | if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { | |
6494 | highdma = true; | |
6495 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); | |
6496 | if (err) { | |
6497 | dev_err(&pdev->dev, "unable to obtain 64-bit DMA for " | |
6498 | "coherent allocations\n"); | |
6499 | goto out_disable_device; | |
6500 | } | |
6501 | } else { | |
6502 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); | |
6503 | if (err) { | |
6504 | dev_err(&pdev->dev, "no usable DMA configuration\n"); | |
6505 | goto out_disable_device; | |
6506 | } | |
6507 | } | |
6508 | ||
6509 | pci_enable_pcie_error_reporting(pdev); | |
6510 | enable_pcie_relaxed_ordering(pdev); | |
6511 | pci_set_master(pdev); | |
6512 | pci_save_state(pdev); | |
6513 | ||
6514 | adapter = kzalloc(sizeof(*adapter), GFP_KERNEL); | |
6515 | if (!adapter) { | |
6516 | err = -ENOMEM; | |
6517 | goto out_disable_device; | |
6518 | } | |
6519 | ||
6520 | /* PCI device has been enabled */ | |
6521 | adapter->flags |= DEV_ENABLED; | |
6522 | ||
6523 | adapter->regs = pci_ioremap_bar(pdev, 0); | |
6524 | if (!adapter->regs) { | |
6525 | dev_err(&pdev->dev, "cannot map device registers\n"); | |
6526 | err = -ENOMEM; | |
6527 | goto out_free_adapter; | |
6528 | } | |
6529 | ||
6530 | /* We control everything through one PF */ | |
6531 | func = SOURCEPF_GET(readl(adapter->regs + PL_WHOAMI)); | |
6532 | if (func != ent->driver_data) { | |
6533 | pci_save_state(pdev); /* to restore SR-IOV later */ | |
6534 | goto sriov; | |
6535 | } | |
6536 | ||
6537 | adapter->pdev = pdev; | |
6538 | adapter->pdev_dev = &pdev->dev; | |
6539 | adapter->mbox = func; | |
6540 | adapter->fn = func; | |
6541 | adapter->msg_enable = dflt_msg_enable; | |
6542 | memset(adapter->chan_map, 0xff, sizeof(adapter->chan_map)); | |
6543 | ||
6544 | spin_lock_init(&adapter->stats_lock); | |
6545 | spin_lock_init(&adapter->tid_release_lock); | |
6546 | ||
6547 | INIT_WORK(&adapter->tid_release_task, process_tid_release_list); | |
6548 | INIT_WORK(&adapter->db_full_task, process_db_full); | |
6549 | INIT_WORK(&adapter->db_drop_task, process_db_drop); | |
6550 | ||
6551 | err = t4_prep_adapter(adapter); | |
6552 | if (err) | |
6553 | goto out_unmap_bar0; | |
6554 | ||
6555 | if (!is_t4(adapter->params.chip)) { | |
6556 | s_qpp = QUEUESPERPAGEPF1 * adapter->fn; | |
6557 | qpp = 1 << QUEUESPERPAGEPF0_GET(t4_read_reg(adapter, | |
6558 | SGE_EGRESS_QUEUES_PER_PAGE_PF) >> s_qpp); | |
6559 | num_seg = PAGE_SIZE / SEGMENT_SIZE; | |
6560 | ||
6561 | /* Each segment size is 128B. Write coalescing is enabled only | |
6562 | * when SGE_EGRESS_QUEUES_PER_PAGE_PF reg value for the | |
6563 | * queue is less no of segments that can be accommodated in | |
6564 | * a page size. | |
6565 | */ | |
6566 | if (qpp > num_seg) { | |
6567 | dev_err(&pdev->dev, | |
6568 | "Incorrect number of egress queues per page\n"); | |
6569 | err = -EINVAL; | |
6570 | goto out_unmap_bar0; | |
6571 | } | |
6572 | adapter->bar2 = ioremap_wc(pci_resource_start(pdev, 2), | |
6573 | pci_resource_len(pdev, 2)); | |
6574 | if (!adapter->bar2) { | |
6575 | dev_err(&pdev->dev, "cannot map device bar2 region\n"); | |
6576 | err = -ENOMEM; | |
6577 | goto out_unmap_bar0; | |
6578 | } | |
6579 | } | |
6580 | ||
6581 | setup_memwin(adapter); | |
6582 | err = adap_init0(adapter); | |
6583 | setup_memwin_rdma(adapter); | |
6584 | if (err) | |
6585 | goto out_unmap_bar; | |
6586 | ||
6587 | for_each_port(adapter, i) { | |
6588 | struct net_device *netdev; | |
6589 | ||
6590 | netdev = alloc_etherdev_mq(sizeof(struct port_info), | |
6591 | MAX_ETH_QSETS); | |
6592 | if (!netdev) { | |
6593 | err = -ENOMEM; | |
6594 | goto out_free_dev; | |
6595 | } | |
6596 | ||
6597 | SET_NETDEV_DEV(netdev, &pdev->dev); | |
6598 | ||
6599 | adapter->port[i] = netdev; | |
6600 | pi = netdev_priv(netdev); | |
6601 | pi->adapter = adapter; | |
6602 | pi->xact_addr_filt = -1; | |
6603 | pi->port_id = i; | |
6604 | netdev->irq = pdev->irq; | |
6605 | ||
6606 | netdev->hw_features = NETIF_F_SG | TSO_FLAGS | | |
6607 | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | | |
6608 | NETIF_F_RXCSUM | NETIF_F_RXHASH | | |
6609 | NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX; | |
6610 | if (highdma) | |
6611 | netdev->hw_features |= NETIF_F_HIGHDMA; | |
6612 | netdev->features |= netdev->hw_features; | |
6613 | netdev->vlan_features = netdev->features & VLAN_FEAT; | |
6614 | ||
6615 | netdev->priv_flags |= IFF_UNICAST_FLT; | |
6616 | ||
6617 | netdev->netdev_ops = &cxgb4_netdev_ops; | |
6618 | #ifdef CONFIG_CHELSIO_T4_DCB | |
6619 | netdev->dcbnl_ops = &cxgb4_dcb_ops; | |
6620 | cxgb4_dcb_state_init(netdev); | |
6621 | #endif | |
6622 | netdev->ethtool_ops = &cxgb_ethtool_ops; | |
6623 | } | |
6624 | ||
6625 | pci_set_drvdata(pdev, adapter); | |
6626 | ||
6627 | if (adapter->flags & FW_OK) { | |
6628 | err = t4_port_init(adapter, func, func, 0); | |
6629 | if (err) | |
6630 | goto out_free_dev; | |
6631 | } | |
6632 | ||
6633 | /* | |
6634 | * Configure queues and allocate tables now, they can be needed as | |
6635 | * soon as the first register_netdev completes. | |
6636 | */ | |
6637 | cfg_queues(adapter); | |
6638 | ||
6639 | adapter->l2t = t4_init_l2t(); | |
6640 | if (!adapter->l2t) { | |
6641 | /* We tolerate a lack of L2T, giving up some functionality */ | |
6642 | dev_warn(&pdev->dev, "could not allocate L2T, continuing\n"); | |
6643 | adapter->params.offload = 0; | |
6644 | } | |
6645 | ||
6646 | if (is_offload(adapter) && tid_init(&adapter->tids) < 0) { | |
6647 | dev_warn(&pdev->dev, "could not allocate TID table, " | |
6648 | "continuing\n"); | |
6649 | adapter->params.offload = 0; | |
6650 | } | |
6651 | ||
6652 | /* See what interrupts we'll be using */ | |
6653 | if (msi > 1 && enable_msix(adapter) == 0) | |
6654 | adapter->flags |= USING_MSIX; | |
6655 | else if (msi > 0 && pci_enable_msi(pdev) == 0) | |
6656 | adapter->flags |= USING_MSI; | |
6657 | ||
6658 | err = init_rss(adapter); | |
6659 | if (err) | |
6660 | goto out_free_dev; | |
6661 | ||
6662 | /* | |
6663 | * The card is now ready to go. If any errors occur during device | |
6664 | * registration we do not fail the whole card but rather proceed only | |
6665 | * with the ports we manage to register successfully. However we must | |
6666 | * register at least one net device. | |
6667 | */ | |
6668 | for_each_port(adapter, i) { | |
6669 | pi = adap2pinfo(adapter, i); | |
6670 | netif_set_real_num_tx_queues(adapter->port[i], pi->nqsets); | |
6671 | netif_set_real_num_rx_queues(adapter->port[i], pi->nqsets); | |
6672 | ||
6673 | err = register_netdev(adapter->port[i]); | |
6674 | if (err) | |
6675 | break; | |
6676 | adapter->chan_map[pi->tx_chan] = i; | |
6677 | print_port_info(adapter->port[i]); | |
6678 | } | |
6679 | if (i == 0) { | |
6680 | dev_err(&pdev->dev, "could not register any net devices\n"); | |
6681 | goto out_free_dev; | |
6682 | } | |
6683 | if (err) { | |
6684 | dev_warn(&pdev->dev, "only %d net devices registered\n", i); | |
6685 | err = 0; | |
6686 | } | |
6687 | ||
6688 | if (cxgb4_debugfs_root) { | |
6689 | adapter->debugfs_root = debugfs_create_dir(pci_name(pdev), | |
6690 | cxgb4_debugfs_root); | |
6691 | setup_debugfs(adapter); | |
6692 | } | |
6693 | ||
6694 | /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ | |
6695 | pdev->needs_freset = 1; | |
6696 | ||
6697 | if (is_offload(adapter)) | |
6698 | attach_ulds(adapter); | |
6699 | ||
6700 | sriov: | |
6701 | #ifdef CONFIG_PCI_IOV | |
6702 | if (func < ARRAY_SIZE(num_vf) && num_vf[func] > 0) | |
6703 | if (pci_enable_sriov(pdev, num_vf[func]) == 0) | |
6704 | dev_info(&pdev->dev, | |
6705 | "instantiated %u virtual functions\n", | |
6706 | num_vf[func]); | |
6707 | #endif | |
6708 | return 0; | |
6709 | ||
6710 | out_free_dev: | |
6711 | free_some_resources(adapter); | |
6712 | out_unmap_bar: | |
6713 | if (!is_t4(adapter->params.chip)) | |
6714 | iounmap(adapter->bar2); | |
6715 | out_unmap_bar0: | |
6716 | iounmap(adapter->regs); | |
6717 | out_free_adapter: | |
6718 | kfree(adapter); | |
6719 | out_disable_device: | |
6720 | pci_disable_pcie_error_reporting(pdev); | |
6721 | pci_disable_device(pdev); | |
6722 | out_release_regions: | |
6723 | pci_release_regions(pdev); | |
6724 | return err; | |
6725 | } | |
6726 | ||
6727 | static void remove_one(struct pci_dev *pdev) | |
6728 | { | |
6729 | struct adapter *adapter = pci_get_drvdata(pdev); | |
6730 | ||
6731 | #ifdef CONFIG_PCI_IOV | |
6732 | pci_disable_sriov(pdev); | |
6733 | ||
6734 | #endif | |
6735 | ||
6736 | if (adapter) { | |
6737 | int i; | |
6738 | ||
6739 | if (is_offload(adapter)) | |
6740 | detach_ulds(adapter); | |
6741 | ||
6742 | for_each_port(adapter, i) | |
6743 | if (adapter->port[i]->reg_state == NETREG_REGISTERED) | |
6744 | unregister_netdev(adapter->port[i]); | |
6745 | ||
6746 | debugfs_remove_recursive(adapter->debugfs_root); | |
6747 | ||
6748 | /* If we allocated filters, free up state associated with any | |
6749 | * valid filters ... | |
6750 | */ | |
6751 | if (adapter->tids.ftid_tab) { | |
6752 | struct filter_entry *f = &adapter->tids.ftid_tab[0]; | |
6753 | for (i = 0; i < (adapter->tids.nftids + | |
6754 | adapter->tids.nsftids); i++, f++) | |
6755 | if (f->valid) | |
6756 | clear_filter(adapter, f); | |
6757 | } | |
6758 | ||
6759 | if (adapter->flags & FULL_INIT_DONE) | |
6760 | cxgb_down(adapter); | |
6761 | ||
6762 | free_some_resources(adapter); | |
6763 | iounmap(adapter->regs); | |
6764 | if (!is_t4(adapter->params.chip)) | |
6765 | iounmap(adapter->bar2); | |
6766 | pci_disable_pcie_error_reporting(pdev); | |
6767 | if ((adapter->flags & DEV_ENABLED)) { | |
6768 | pci_disable_device(pdev); | |
6769 | adapter->flags &= ~DEV_ENABLED; | |
6770 | } | |
6771 | pci_release_regions(pdev); | |
6772 | synchronize_rcu(); | |
6773 | kfree(adapter); | |
6774 | } else | |
6775 | pci_release_regions(pdev); | |
6776 | } | |
6777 | ||
6778 | static struct pci_driver cxgb4_driver = { | |
6779 | .name = KBUILD_MODNAME, | |
6780 | .id_table = cxgb4_pci_tbl, | |
6781 | .probe = init_one, | |
6782 | .remove = remove_one, | |
6783 | .shutdown = remove_one, | |
6784 | .err_handler = &cxgb4_eeh, | |
6785 | }; | |
6786 | ||
6787 | static int __init cxgb4_init_module(void) | |
6788 | { | |
6789 | int ret; | |
6790 | ||
6791 | workq = create_singlethread_workqueue("cxgb4"); | |
6792 | if (!workq) | |
6793 | return -ENOMEM; | |
6794 | ||
6795 | /* Debugfs support is optional, just warn if this fails */ | |
6796 | cxgb4_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL); | |
6797 | if (!cxgb4_debugfs_root) | |
6798 | pr_warn("could not create debugfs entry, continuing\n"); | |
6799 | ||
6800 | ret = pci_register_driver(&cxgb4_driver); | |
6801 | if (ret < 0) { | |
6802 | debugfs_remove(cxgb4_debugfs_root); | |
6803 | destroy_workqueue(workq); | |
6804 | } | |
6805 | ||
6806 | register_inet6addr_notifier(&cxgb4_inet6addr_notifier); | |
6807 | ||
6808 | return ret; | |
6809 | } | |
6810 | ||
6811 | static void __exit cxgb4_cleanup_module(void) | |
6812 | { | |
6813 | unregister_inet6addr_notifier(&cxgb4_inet6addr_notifier); | |
6814 | pci_unregister_driver(&cxgb4_driver); | |
6815 | debugfs_remove(cxgb4_debugfs_root); /* NULL ok */ | |
6816 | flush_workqueue(workq); | |
6817 | destroy_workqueue(workq); | |
6818 | } | |
6819 | ||
6820 | module_init(cxgb4_init_module); | |
6821 | module_exit(cxgb4_cleanup_module); |