1 | /* |
2 | * This file is part of the Chelsio T4 PCI-E SR-IOV Virtual Function Ethernet |
3 | * driver for Linux. |
4 | * |
5 | * Copyright (c) 2009-2010 Chelsio Communications, Inc. All rights reserved. |
6 | * |
7 | * This software is available to you under a choice of one of two |
8 | * licenses. You may choose to be licensed under the terms of the GNU |
9 | * General Public License (GPL) Version 2, available from the file |
10 | * COPYING in the main directory of this source tree, or the |
11 | * OpenIB.org BSD license below: |
12 | * |
13 | * Redistribution and use in source and binary forms, with or |
14 | * without modification, are permitted provided that the following |
15 | * conditions are met: |
16 | * |
17 | * - Redistributions of source code must retain the above |
18 | * copyright notice, this list of conditions and the following |
19 | * disclaimer. |
20 | * |
21 | * - Redistributions in binary form must reproduce the above |
22 | * copyright notice, this list of conditions and the following |
23 | * disclaimer in the documentation and/or other materials |
24 | * provided with the distribution. |
25 | * |
26 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
27 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
28 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
29 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
30 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
31 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
32 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
33 | * SOFTWARE. |
34 | */ |
35 | |
36 | #include <linux/ethtool.h> |
37 | #include <linux/pci.h> |
38 | |
39 | #include "t4vf_common.h" |
40 | #include "t4vf_defs.h" |
41 | |
42 | #include "../cxgb4/t4_regs.h" |
43 | #include "../cxgb4/t4_values.h" |
44 | #include "../cxgb4/t4fw_api.h" |
45 | |
46 | /* |
47 | * Wait for the device to become ready (signified by our "who am I" register |
48 | * returning a value other than all 1's). Return an error if it doesn't |
49 | * become ready ... |
50 | */ |
51 | int t4vf_wait_dev_ready(struct adapter *adapter) |
52 | { |
53 | const u32 whoami = T4VF_PL_BASE_ADDR + PL_VF_WHOAMI; |
54 | const u32 notready1 = 0xffffffff; |
55 | const u32 notready2 = 0xeeeeeeee; |
56 | u32 val; |
57 | |
58 | val = t4_read_reg(adapter, reg_addr: whoami); |
59 | if (val != notready1 && val != notready2) |
60 | return 0; |
61 | msleep(msecs: 500); |
62 | val = t4_read_reg(adapter, reg_addr: whoami); |
63 | if (val != notready1 && val != notready2) |
64 | return 0; |
65 | else |
66 | return -EIO; |
67 | } |
68 | |
69 | /* |
70 | * Get the reply to a mailbox command and store it in @rpl in big-endian order |
71 | * (since the firmware data structures are specified in a big-endian layout). |
72 | */ |
73 | static void get_mbox_rpl(struct adapter *adapter, __be64 *rpl, int size, |
74 | u32 mbox_data) |
75 | { |
76 | for ( ; size; size -= 8, mbox_data += 8) |
77 | *rpl++ = cpu_to_be64(t4_read_reg64(adapter, mbox_data)); |
78 | } |
79 | |
80 | /** |
81 | * t4vf_record_mbox - record a Firmware Mailbox Command/Reply in the log |
82 | * @adapter: the adapter |
83 | * @cmd: the Firmware Mailbox Command or Reply |
84 | * @size: command length in bytes |
85 | * @access: the time (ms) needed to access the Firmware Mailbox |
86 | * @execute: the time (ms) the command spent being executed |
87 | */ |
88 | static void t4vf_record_mbox(struct adapter *adapter, const __be64 *cmd, |
89 | int size, int access, int execute) |
90 | { |
91 | struct mbox_cmd_log *log = adapter->mbox_log; |
92 | struct mbox_cmd *entry; |
93 | int i; |
94 | |
95 | entry = mbox_cmd_log_entry(log, entry_idx: log->cursor++); |
96 | if (log->cursor == log->size) |
97 | log->cursor = 0; |
98 | |
99 | for (i = 0; i < size / 8; i++) |
100 | entry->cmd[i] = be64_to_cpu(cmd[i]); |
101 | while (i < MBOX_LEN / 8) |
102 | entry->cmd[i++] = 0; |
103 | entry->timestamp = jiffies; |
104 | entry->seqno = log->seqno++; |
105 | entry->access = access; |
106 | entry->execute = execute; |
107 | } |
108 | |
109 | /** |
110 | * t4vf_wr_mbox_core - send a command to FW through the mailbox |
111 | * @adapter: the adapter |
112 | * @cmd: the command to write |
113 | * @size: command length in bytes |
114 | * @rpl: where to optionally store the reply |
115 | * @sleep_ok: if true we may sleep while awaiting command completion |
116 | * |
117 | * Sends the given command to FW through the mailbox and waits for the |
118 | * FW to execute the command. If @rpl is not %NULL it is used to store |
119 | * the FW's reply to the command. The command and its optional reply |
120 | * are of the same length. FW can take up to 500 ms to respond. |
121 | * @sleep_ok determines whether we may sleep while awaiting the response. |
122 | * If sleeping is allowed we use progressive backoff otherwise we spin. |
123 | * |
124 | * The return value is 0 on success or a negative errno on failure. A |
125 | * failure can happen either because we are not able to execute the |
126 | * command or FW executes it but signals an error. In the latter case |
127 | * the return value is the error code indicated by FW (negated). |
128 | */ |
129 | int t4vf_wr_mbox_core(struct adapter *adapter, const void *cmd, int size, |
130 | void *rpl, bool sleep_ok) |
131 | { |
132 | static const int delay[] = { |
133 | 1, 1, 3, 5, 10, 10, 20, 50, 100 |
134 | }; |
135 | |
136 | u16 access = 0, execute = 0; |
137 | u32 v, mbox_data; |
138 | int i, ms, delay_idx, ret; |
139 | const __be64 *p; |
140 | u32 mbox_ctl = T4VF_CIM_BASE_ADDR + CIM_VF_EXT_MAILBOX_CTRL; |
141 | u32 cmd_op = FW_CMD_OP_G(be32_to_cpu(((struct fw_cmd_hdr *)cmd)->hi)); |
142 | __be64 cmd_rpl[MBOX_LEN / 8]; |
143 | struct mbox_list entry; |
144 | |
145 | /* In T6, mailbox size is changed to 128 bytes to avoid |
146 | * invalidating the entire prefetch buffer. |
147 | */ |
148 | if (CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5) |
149 | mbox_data = T4VF_MBDATA_BASE_ADDR; |
150 | else |
151 | mbox_data = T6VF_MBDATA_BASE_ADDR; |
152 | |
153 | /* |
154 | * Commands must be multiples of 16 bytes in length and may not be |
155 | * larger than the size of the Mailbox Data register array. |
156 | */ |
157 | if ((size % 16) != 0 || |
158 | size > NUM_CIM_VF_MAILBOX_DATA_INSTANCES * 4) |
159 | return -EINVAL; |
160 | |
161 | /* Queue ourselves onto the mailbox access list. When our entry is at |
162 | * the front of the list, we have rights to access the mailbox. So we |
163 | * wait [for a while] till we're at the front [or bail out with an |
164 | * EBUSY] ... |
165 | */ |
166 | spin_lock(lock: &adapter->mbox_lock); |
167 | list_add_tail(new: &entry.list, head: &adapter->mlist.list); |
168 | spin_unlock(lock: &adapter->mbox_lock); |
169 | |
170 | delay_idx = 0; |
171 | ms = delay[0]; |
172 | |
173 | for (i = 0; ; i += ms) { |
174 | /* If we've waited too long, return a busy indication. This |
175 | * really ought to be based on our initial position in the |
176 | * mailbox access list but this is a start. We very rearely |
177 | * contend on access to the mailbox ... |
178 | */ |
179 | if (i > FW_CMD_MAX_TIMEOUT) { |
180 | spin_lock(lock: &adapter->mbox_lock); |
181 | list_del(entry: &entry.list); |
182 | spin_unlock(lock: &adapter->mbox_lock); |
183 | ret = -EBUSY; |
184 | t4vf_record_mbox(adapter, cmd, size, access, execute: ret); |
185 | return ret; |
186 | } |
187 | |
188 | /* If we're at the head, break out and start the mailbox |
189 | * protocol. |
190 | */ |
191 | if (list_first_entry(&adapter->mlist.list, struct mbox_list, |
192 | list) == &entry) |
193 | break; |
194 | |
195 | /* Delay for a bit before checking again ... */ |
196 | if (sleep_ok) { |
197 | ms = delay[delay_idx]; /* last element may repeat */ |
198 | if (delay_idx < ARRAY_SIZE(delay) - 1) |
199 | delay_idx++; |
200 | msleep(msecs: ms); |
201 | } else { |
202 | mdelay(ms); |
203 | } |
204 | } |
205 | |
206 | /* |
207 | * Loop trying to get ownership of the mailbox. Return an error |
208 | * if we can't gain ownership. |
209 | */ |
210 | v = MBOWNER_G(t4_read_reg(adapter, mbox_ctl)); |
211 | for (i = 0; v == MBOX_OWNER_NONE && i < 3; i++) |
212 | v = MBOWNER_G(t4_read_reg(adapter, mbox_ctl)); |
213 | if (v != MBOX_OWNER_DRV) { |
214 | spin_lock(lock: &adapter->mbox_lock); |
215 | list_del(entry: &entry.list); |
216 | spin_unlock(lock: &adapter->mbox_lock); |
217 | ret = (v == MBOX_OWNER_FW) ? -EBUSY : -ETIMEDOUT; |
218 | t4vf_record_mbox(adapter, cmd, size, access, execute: ret); |
219 | return ret; |
220 | } |
221 | |
222 | /* |
223 | * Write the command array into the Mailbox Data register array and |
224 | * transfer ownership of the mailbox to the firmware. |
225 | * |
226 | * For the VFs, the Mailbox Data "registers" are actually backed by |
227 | * T4's "MA" interface rather than PL Registers (as is the case for |
228 | * the PFs). Because these are in different coherency domains, the |
229 | * write to the VF's PL-register-backed Mailbox Control can race in |
230 | * front of the writes to the MA-backed VF Mailbox Data "registers". |
231 | * So we need to do a read-back on at least one byte of the VF Mailbox |
232 | * Data registers before doing the write to the VF Mailbox Control |
233 | * register. |
234 | */ |
235 | if (cmd_op != FW_VI_STATS_CMD) |
236 | t4vf_record_mbox(adapter, cmd, size, access, execute: 0); |
237 | for (i = 0, p = cmd; i < size; i += 8) |
238 | t4_write_reg64(adapter, reg_addr: mbox_data + i, be64_to_cpu(*p++)); |
239 | t4_read_reg(adapter, reg_addr: mbox_data); /* flush write */ |
240 | |
241 | t4_write_reg(adapter, reg_addr: mbox_ctl, |
242 | MBMSGVALID_F | MBOWNER_V(MBOX_OWNER_FW)); |
243 | t4_read_reg(adapter, reg_addr: mbox_ctl); /* flush write */ |
244 | |
245 | /* |
246 | * Spin waiting for firmware to acknowledge processing our command. |
247 | */ |
248 | delay_idx = 0; |
249 | ms = delay[0]; |
250 | |
251 | for (i = 0; i < FW_CMD_MAX_TIMEOUT; i += ms) { |
252 | if (sleep_ok) { |
253 | ms = delay[delay_idx]; |
254 | if (delay_idx < ARRAY_SIZE(delay) - 1) |
255 | delay_idx++; |
256 | msleep(msecs: ms); |
257 | } else |
258 | mdelay(ms); |
259 | |
260 | /* |
261 | * If we're the owner, see if this is the reply we wanted. |
262 | */ |
263 | v = t4_read_reg(adapter, reg_addr: mbox_ctl); |
264 | if (MBOWNER_G(v) == MBOX_OWNER_DRV) { |
265 | /* |
266 | * If the Message Valid bit isn't on, revoke ownership |
267 | * of the mailbox and continue waiting for our reply. |
268 | */ |
269 | if ((v & MBMSGVALID_F) == 0) { |
270 | t4_write_reg(adapter, reg_addr: mbox_ctl, |
271 | MBOWNER_V(MBOX_OWNER_NONE)); |
272 | continue; |
273 | } |
274 | |
275 | /* |
276 | * We now have our reply. Extract the command return |
277 | * value, copy the reply back to our caller's buffer |
278 | * (if specified) and revoke ownership of the mailbox. |
279 | * We return the (negated) firmware command return |
280 | * code (this depends on FW_SUCCESS == 0). |
281 | */ |
282 | get_mbox_rpl(adapter, rpl: cmd_rpl, size, mbox_data); |
283 | |
284 | /* return value in low-order little-endian word */ |
285 | v = be64_to_cpu(cmd_rpl[0]); |
286 | |
287 | if (rpl) { |
288 | /* request bit in high-order BE word */ |
289 | WARN_ON((be32_to_cpu(*(const __be32 *)cmd) |
290 | & FW_CMD_REQUEST_F) == 0); |
291 | memcpy(rpl, cmd_rpl, size); |
292 | WARN_ON((be32_to_cpu(*(__be32 *)rpl) |
293 | & FW_CMD_REQUEST_F) != 0); |
294 | } |
295 | t4_write_reg(adapter, reg_addr: mbox_ctl, |
296 | MBOWNER_V(MBOX_OWNER_NONE)); |
297 | execute = i + ms; |
298 | if (cmd_op != FW_VI_STATS_CMD) |
299 | t4vf_record_mbox(adapter, cmd: cmd_rpl, size, access, |
300 | execute); |
301 | spin_lock(lock: &adapter->mbox_lock); |
302 | list_del(entry: &entry.list); |
303 | spin_unlock(lock: &adapter->mbox_lock); |
304 | return -FW_CMD_RETVAL_G(v); |
305 | } |
306 | } |
307 | |
308 | /* We timed out. Return the error ... */ |
309 | ret = -ETIMEDOUT; |
310 | t4vf_record_mbox(adapter, cmd, size, access, execute: ret); |
311 | spin_lock(lock: &adapter->mbox_lock); |
312 | list_del(entry: &entry.list); |
313 | spin_unlock(lock: &adapter->mbox_lock); |
314 | return ret; |
315 | } |
316 | |
317 | /* In the Physical Function Driver Common Code, the ADVERT_MASK is used to |
318 | * mask out bits in the Advertised Port Capabilities which are managed via |
319 | * separate controls, like Pause Frames and Forward Error Correction. In the |
320 | * Virtual Function Common Code, since we never perform L1 Configuration on |
321 | * the Link, the only things we really need to filter out are things which |
322 | * we decode and report separately like Speed. |
323 | */ |
324 | #define ADVERT_MASK (FW_PORT_CAP32_SPEED_V(FW_PORT_CAP32_SPEED_M) | \ |
325 | FW_PORT_CAP32_802_3_PAUSE | \ |
326 | FW_PORT_CAP32_802_3_ASM_DIR | \ |
327 | FW_PORT_CAP32_FEC_V(FW_PORT_CAP32_FEC_M) | \ |
328 | FW_PORT_CAP32_ANEG) |
329 | |
330 | /** |
331 | * fwcaps16_to_caps32 - convert 16-bit Port Capabilities to 32-bits |
332 | * @caps16: a 16-bit Port Capabilities value |
333 | * |
334 | * Returns the equivalent 32-bit Port Capabilities value. |
335 | */ |
336 | static fw_port_cap32_t fwcaps16_to_caps32(fw_port_cap16_t caps16) |
337 | { |
338 | fw_port_cap32_t caps32 = 0; |
339 | |
340 | #define CAP16_TO_CAP32(__cap) \ |
341 | do { \ |
342 | if (caps16 & FW_PORT_CAP_##__cap) \ |
343 | caps32 |= FW_PORT_CAP32_##__cap; \ |
344 | } while (0) |
345 | |
346 | CAP16_TO_CAP32(SPEED_100M); |
347 | CAP16_TO_CAP32(SPEED_1G); |
348 | CAP16_TO_CAP32(SPEED_25G); |
349 | CAP16_TO_CAP32(SPEED_10G); |
350 | CAP16_TO_CAP32(SPEED_40G); |
351 | CAP16_TO_CAP32(SPEED_100G); |
352 | CAP16_TO_CAP32(FC_RX); |
353 | CAP16_TO_CAP32(FC_TX); |
354 | CAP16_TO_CAP32(ANEG); |
355 | CAP16_TO_CAP32(MDIAUTO); |
356 | CAP16_TO_CAP32(MDISTRAIGHT); |
357 | CAP16_TO_CAP32(FEC_RS); |
358 | CAP16_TO_CAP32(FEC_BASER_RS); |
359 | CAP16_TO_CAP32(802_3_PAUSE); |
360 | CAP16_TO_CAP32(802_3_ASM_DIR); |
361 | |
362 | #undef CAP16_TO_CAP32 |
363 | |
364 | return caps32; |
365 | } |
366 | |
367 | /* Translate Firmware Pause specification to Common Code */ |
368 | static inline enum cc_pause fwcap_to_cc_pause(fw_port_cap32_t fw_pause) |
369 | { |
370 | enum cc_pause cc_pause = 0; |
371 | |
372 | if (fw_pause & FW_PORT_CAP32_FC_RX) |
373 | cc_pause |= PAUSE_RX; |
374 | if (fw_pause & FW_PORT_CAP32_FC_TX) |
375 | cc_pause |= PAUSE_TX; |
376 | |
377 | return cc_pause; |
378 | } |
379 | |
380 | /* Translate Firmware Forward Error Correction specification to Common Code */ |
381 | static inline enum cc_fec fwcap_to_cc_fec(fw_port_cap32_t fw_fec) |
382 | { |
383 | enum cc_fec cc_fec = 0; |
384 | |
385 | if (fw_fec & FW_PORT_CAP32_FEC_RS) |
386 | cc_fec |= FEC_RS; |
387 | if (fw_fec & FW_PORT_CAP32_FEC_BASER_RS) |
388 | cc_fec |= FEC_BASER_RS; |
389 | |
390 | return cc_fec; |
391 | } |
392 | |
393 | /* Return the highest speed set in the port capabilities, in Mb/s. */ |
394 | static unsigned int fwcap_to_speed(fw_port_cap32_t caps) |
395 | { |
396 | #define TEST_SPEED_RETURN(__caps_speed, __speed) \ |
397 | do { \ |
398 | if (caps & FW_PORT_CAP32_SPEED_##__caps_speed) \ |
399 | return __speed; \ |
400 | } while (0) |
401 | |
402 | TEST_SPEED_RETURN(400G, 400000); |
403 | TEST_SPEED_RETURN(200G, 200000); |
404 | TEST_SPEED_RETURN(100G, 100000); |
405 | TEST_SPEED_RETURN(50G, 50000); |
406 | TEST_SPEED_RETURN(40G, 40000); |
407 | TEST_SPEED_RETURN(25G, 25000); |
408 | TEST_SPEED_RETURN(10G, 10000); |
409 | TEST_SPEED_RETURN(1G, 1000); |
410 | TEST_SPEED_RETURN(100M, 100); |
411 | |
412 | #undef TEST_SPEED_RETURN |
413 | |
414 | return 0; |
415 | } |
416 | |
417 | /** |
418 | * fwcap_to_fwspeed - return highest speed in Port Capabilities |
419 | * @acaps: advertised Port Capabilities |
420 | * |
421 | * Get the highest speed for the port from the advertised Port |
422 | * Capabilities. It will be either the highest speed from the list of |
423 | * speeds or whatever user has set using ethtool. |
424 | */ |
425 | static fw_port_cap32_t fwcap_to_fwspeed(fw_port_cap32_t acaps) |
426 | { |
427 | #define TEST_SPEED_RETURN(__caps_speed) \ |
428 | do { \ |
429 | if (acaps & FW_PORT_CAP32_SPEED_##__caps_speed) \ |
430 | return FW_PORT_CAP32_SPEED_##__caps_speed; \ |
431 | } while (0) |
432 | |
433 | TEST_SPEED_RETURN(400G); |
434 | TEST_SPEED_RETURN(200G); |
435 | TEST_SPEED_RETURN(100G); |
436 | TEST_SPEED_RETURN(50G); |
437 | TEST_SPEED_RETURN(40G); |
438 | TEST_SPEED_RETURN(25G); |
439 | TEST_SPEED_RETURN(10G); |
440 | TEST_SPEED_RETURN(1G); |
441 | TEST_SPEED_RETURN(100M); |
442 | |
443 | #undef TEST_SPEED_RETURN |
444 | return 0; |
445 | } |
446 | |
447 | /* |
448 | * init_link_config - initialize a link's SW state |
449 | * @lc: structure holding the link state |
450 | * @pcaps: link Port Capabilities |
451 | * @acaps: link current Advertised Port Capabilities |
452 | * |
453 | * Initializes the SW state maintained for each link, including the link's |
454 | * capabilities and default speed/flow-control/autonegotiation settings. |
455 | */ |
456 | static void init_link_config(struct link_config *lc, |
457 | fw_port_cap32_t pcaps, |
458 | fw_port_cap32_t acaps) |
459 | { |
460 | lc->pcaps = pcaps; |
461 | lc->lpacaps = 0; |
462 | lc->speed_caps = 0; |
463 | lc->speed = 0; |
464 | lc->requested_fc = lc->fc = PAUSE_RX | PAUSE_TX; |
465 | |
466 | /* For Forward Error Control, we default to whatever the Firmware |
467 | * tells us the Link is currently advertising. |
468 | */ |
469 | lc->auto_fec = fwcap_to_cc_fec(fw_fec: acaps); |
470 | lc->requested_fec = FEC_AUTO; |
471 | lc->fec = lc->auto_fec; |
472 | |
473 | /* If the Port is capable of Auto-Negtotiation, initialize it as |
474 | * "enabled" and copy over all of the Physical Port Capabilities |
475 | * to the Advertised Port Capabilities. Otherwise mark it as |
476 | * Auto-Negotiate disabled and select the highest supported speed |
477 | * for the link. Note parallel structure in t4_link_l1cfg_core() |
478 | * and t4_handle_get_port_info(). |
479 | */ |
480 | if (lc->pcaps & FW_PORT_CAP32_ANEG) { |
481 | lc->acaps = acaps & ADVERT_MASK; |
482 | lc->autoneg = AUTONEG_ENABLE; |
483 | lc->requested_fc |= PAUSE_AUTONEG; |
484 | } else { |
485 | lc->acaps = 0; |
486 | lc->autoneg = AUTONEG_DISABLE; |
487 | lc->speed_caps = fwcap_to_fwspeed(acaps); |
488 | } |
489 | } |
490 | |
491 | /** |
492 | * t4vf_port_init - initialize port hardware/software state |
493 | * @adapter: the adapter |
494 | * @pidx: the adapter port index |
495 | */ |
496 | int t4vf_port_init(struct adapter *adapter, int pidx) |
497 | { |
498 | struct port_info *pi = adap2pinfo(adapter, pidx); |
499 | unsigned int fw_caps = adapter->params.fw_caps_support; |
500 | struct fw_vi_cmd vi_cmd, vi_rpl; |
501 | struct fw_port_cmd port_cmd, port_rpl; |
502 | enum fw_port_type port_type; |
503 | int mdio_addr; |
504 | fw_port_cap32_t pcaps, acaps; |
505 | int ret; |
506 | |
507 | /* If we haven't yet determined whether we're talking to Firmware |
508 | * which knows the new 32-bit Port Capabilities, it's time to find |
509 | * out now. This will also tell new Firmware to send us Port Status |
510 | * Updates using the new 32-bit Port Capabilities version of the |
511 | * Port Information message. |
512 | */ |
513 | if (fw_caps == FW_CAPS_UNKNOWN) { |
514 | u32 param, val; |
515 | |
516 | param = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_PFVF) | |
517 | FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_PFVF_PORT_CAPS32)); |
518 | val = 1; |
519 | ret = t4vf_set_params(adapter, 1, ¶m, &val); |
520 | fw_caps = (ret == 0 ? FW_CAPS32 : FW_CAPS16); |
521 | adapter->params.fw_caps_support = fw_caps; |
522 | } |
523 | |
524 | /* |
525 | * Execute a VI Read command to get our Virtual Interface information |
526 | * like MAC address, etc. |
527 | */ |
528 | memset(&vi_cmd, 0, sizeof(vi_cmd)); |
529 | vi_cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_VI_CMD) | |
530 | FW_CMD_REQUEST_F | |
531 | FW_CMD_READ_F); |
532 | vi_cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(vi_cmd)); |
533 | vi_cmd.type_viid = cpu_to_be16(FW_VI_CMD_VIID_V(pi->viid)); |
534 | ret = t4vf_wr_mbox(adapter, cmd: &vi_cmd, size: sizeof(vi_cmd), rpl: &vi_rpl); |
535 | if (ret != FW_SUCCESS) |
536 | return ret; |
537 | |
538 | BUG_ON(pi->port_id != FW_VI_CMD_PORTID_G(vi_rpl.portid_pkd)); |
539 | pi->rss_size = FW_VI_CMD_RSSSIZE_G(be16_to_cpu(vi_rpl.rsssize_pkd)); |
540 | t4_os_set_hw_addr(adapter, pidx, hw_addr: vi_rpl.mac); |
541 | |
542 | /* |
543 | * If we don't have read access to our port information, we're done |
544 | * now. Otherwise, execute a PORT Read command to get it ... |
545 | */ |
546 | if (!(adapter->params.vfres.r_caps & FW_CMD_CAP_PORT)) |
547 | return 0; |
548 | |
549 | memset(&port_cmd, 0, sizeof(port_cmd)); |
550 | port_cmd.op_to_portid = cpu_to_be32(FW_CMD_OP_V(FW_PORT_CMD) | |
551 | FW_CMD_REQUEST_F | |
552 | FW_CMD_READ_F | |
553 | FW_PORT_CMD_PORTID_V(pi->port_id)); |
554 | port_cmd.action_to_len16 = cpu_to_be32( |
555 | FW_PORT_CMD_ACTION_V(fw_caps == FW_CAPS16 |
556 | ? FW_PORT_ACTION_GET_PORT_INFO |
557 | : FW_PORT_ACTION_GET_PORT_INFO32) | |
558 | FW_LEN16(port_cmd)); |
559 | ret = t4vf_wr_mbox(adapter, cmd: &port_cmd, size: sizeof(port_cmd), rpl: &port_rpl); |
560 | if (ret != FW_SUCCESS) |
561 | return ret; |
562 | |
563 | /* Extract the various fields from the Port Information message. */ |
564 | if (fw_caps == FW_CAPS16) { |
565 | u32 lstatus = be32_to_cpu(port_rpl.u.info.lstatus_to_modtype); |
566 | |
567 | port_type = FW_PORT_CMD_PTYPE_G(lstatus); |
568 | mdio_addr = ((lstatus & FW_PORT_CMD_MDIOCAP_F) |
569 | ? FW_PORT_CMD_MDIOADDR_G(lstatus) |
570 | : -1); |
571 | pcaps = fwcaps16_to_caps32(be16_to_cpu(port_rpl.u.info.pcap)); |
572 | acaps = fwcaps16_to_caps32(be16_to_cpu(port_rpl.u.info.acap)); |
573 | } else { |
574 | u32 lstatus32 = |
575 | be32_to_cpu(port_rpl.u.info32.lstatus32_to_cbllen32); |
576 | |
577 | port_type = FW_PORT_CMD_PORTTYPE32_G(lstatus32); |
578 | mdio_addr = ((lstatus32 & FW_PORT_CMD_MDIOCAP32_F) |
579 | ? FW_PORT_CMD_MDIOADDR32_G(lstatus32) |
580 | : -1); |
581 | pcaps = be32_to_cpu(port_rpl.u.info32.pcaps32); |
582 | acaps = be32_to_cpu(port_rpl.u.info32.acaps32); |
583 | } |
584 | |
585 | pi->port_type = port_type; |
586 | pi->mdio_addr = mdio_addr; |
587 | pi->mod_type = FW_PORT_MOD_TYPE_NA; |
588 | |
589 | init_link_config(lc: &pi->link_cfg, pcaps, acaps); |
590 | return 0; |
591 | } |
592 | |
593 | /** |
594 | * t4vf_fw_reset - issue a reset to FW |
595 | * @adapter: the adapter |
596 | * |
597 | * Issues a reset command to FW. For a Physical Function this would |
598 | * result in the Firmware resetting all of its state. For a Virtual |
599 | * Function this just resets the state associated with the VF. |
600 | */ |
601 | int t4vf_fw_reset(struct adapter *adapter) |
602 | { |
603 | struct fw_reset_cmd cmd; |
604 | |
605 | memset(&cmd, 0, sizeof(cmd)); |
606 | cmd.op_to_write = cpu_to_be32(FW_CMD_OP_V(FW_RESET_CMD) | |
607 | FW_CMD_WRITE_F); |
608 | cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd)); |
609 | return t4vf_wr_mbox(adapter, cmd: &cmd, size: sizeof(cmd), NULL); |
610 | } |
611 | |
612 | /** |
613 | * t4vf_query_params - query FW or device parameters |
614 | * @adapter: the adapter |
615 | * @nparams: the number of parameters |
616 | * @params: the parameter names |
617 | * @vals: the parameter values |
618 | * |
619 | * Reads the values of firmware or device parameters. Up to 7 parameters |
620 | * can be queried at once. |
621 | */ |
622 | static int t4vf_query_params(struct adapter *adapter, unsigned int nparams, |
623 | const u32 *params, u32 *vals) |
624 | { |
625 | int i, ret; |
626 | struct fw_params_cmd cmd, rpl; |
627 | struct fw_params_param *p; |
628 | size_t len16; |
629 | |
630 | if (nparams > 7) |
631 | return -EINVAL; |
632 | |
633 | memset(&cmd, 0, sizeof(cmd)); |
634 | cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_PARAMS_CMD) | |
635 | FW_CMD_REQUEST_F | |
636 | FW_CMD_READ_F); |
637 | len16 = DIV_ROUND_UP(offsetof(struct fw_params_cmd, |
638 | param[nparams].mnem), 16); |
639 | cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16_V(len16)); |
640 | for (i = 0, p = &cmd.param[0]; i < nparams; i++, p++) |
641 | p->mnem = htonl(*params++); |
642 | |
643 | ret = t4vf_wr_mbox(adapter, cmd: &cmd, size: sizeof(cmd), rpl: &rpl); |
644 | if (ret == 0) |
645 | for (i = 0, p = &rpl.param[0]; i < nparams; i++, p++) |
646 | *vals++ = be32_to_cpu(p->val); |
647 | return ret; |
648 | } |
649 | |
650 | /** |
651 | * t4vf_set_params - sets FW or device parameters |
652 | * @adapter: the adapter |
653 | * @nparams: the number of parameters |
654 | * @params: the parameter names |
655 | * @vals: the parameter values |
656 | * |
657 | * Sets the values of firmware or device parameters. Up to 7 parameters |
658 | * can be specified at once. |
659 | */ |
660 | int t4vf_set_params(struct adapter *adapter, unsigned int nparams, |
661 | const u32 *params, const u32 *vals) |
662 | { |
663 | int i; |
664 | struct fw_params_cmd cmd; |
665 | struct fw_params_param *p; |
666 | size_t len16; |
667 | |
668 | if (nparams > 7) |
669 | return -EINVAL; |
670 | |
671 | memset(&cmd, 0, sizeof(cmd)); |
672 | cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_PARAMS_CMD) | |
673 | FW_CMD_REQUEST_F | |
674 | FW_CMD_WRITE_F); |
675 | len16 = DIV_ROUND_UP(offsetof(struct fw_params_cmd, |
676 | param[nparams]), 16); |
677 | cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16_V(len16)); |
678 | for (i = 0, p = &cmd.param[0]; i < nparams; i++, p++) { |
679 | p->mnem = cpu_to_be32(*params++); |
680 | p->val = cpu_to_be32(*vals++); |
681 | } |
682 | |
683 | return t4vf_wr_mbox(adapter, cmd: &cmd, size: sizeof(cmd), NULL); |
684 | } |
685 | |
686 | /** |
687 | * t4vf_fl_pkt_align - return the fl packet alignment |
688 | * @adapter: the adapter |
689 | * |
690 | * T4 has a single field to specify the packing and padding boundary. |
691 | * T5 onwards has separate fields for this and hence the alignment for |
692 | * next packet offset is maximum of these two. And T6 changes the |
693 | * Ingress Padding Boundary Shift, so it's all a mess and it's best |
694 | * if we put this in low-level Common Code ... |
695 | * |
696 | */ |
697 | int t4vf_fl_pkt_align(struct adapter *adapter) |
698 | { |
699 | u32 sge_control, sge_control2; |
700 | unsigned int ingpadboundary, ingpackboundary, fl_align, ingpad_shift; |
701 | |
702 | sge_control = adapter->params.sge.sge_control; |
703 | |
704 | /* T4 uses a single control field to specify both the PCIe Padding and |
705 | * Packing Boundary. T5 introduced the ability to specify these |
706 | * separately. The actual Ingress Packet Data alignment boundary |
707 | * within Packed Buffer Mode is the maximum of these two |
708 | * specifications. (Note that it makes no real practical sense to |
709 | * have the Pading Boudary be larger than the Packing Boundary but you |
710 | * could set the chip up that way and, in fact, legacy T4 code would |
711 | * end doing this because it would initialize the Padding Boundary and |
712 | * leave the Packing Boundary initialized to 0 (16 bytes).) |
713 | * Padding Boundary values in T6 starts from 8B, |
714 | * where as it is 32B for T4 and T5. |
715 | */ |
716 | if (CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5) |
717 | ingpad_shift = INGPADBOUNDARY_SHIFT_X; |
718 | else |
719 | ingpad_shift = T6_INGPADBOUNDARY_SHIFT_X; |
720 | |
721 | ingpadboundary = 1 << (INGPADBOUNDARY_G(sge_control) + ingpad_shift); |
722 | |
723 | fl_align = ingpadboundary; |
724 | if (!is_t4(chip: adapter->params.chip)) { |
725 | /* T5 has a different interpretation of one of the PCIe Packing |
726 | * Boundary values. |
727 | */ |
728 | sge_control2 = adapter->params.sge.sge_control2; |
729 | ingpackboundary = INGPACKBOUNDARY_G(sge_control2); |
730 | if (ingpackboundary == INGPACKBOUNDARY_16B_X) |
731 | ingpackboundary = 16; |
732 | else |
733 | ingpackboundary = 1 << (ingpackboundary + |
734 | INGPACKBOUNDARY_SHIFT_X); |
735 | |
736 | fl_align = max(ingpadboundary, ingpackboundary); |
737 | } |
738 | return fl_align; |
739 | } |
740 | |
741 | /** |
742 | * t4vf_bar2_sge_qregs - return BAR2 SGE Queue register information |
743 | * @adapter: the adapter |
744 | * @qid: the Queue ID |
745 | * @qtype: the Ingress or Egress type for @qid |
746 | * @pbar2_qoffset: BAR2 Queue Offset |
747 | * @pbar2_qid: BAR2 Queue ID or 0 for Queue ID inferred SGE Queues |
748 | * |
749 | * Returns the BAR2 SGE Queue Registers information associated with the |
750 | * indicated Absolute Queue ID. These are passed back in return value |
751 | * pointers. @qtype should be T4_BAR2_QTYPE_EGRESS for Egress Queue |
752 | * and T4_BAR2_QTYPE_INGRESS for Ingress Queues. |
753 | * |
754 | * This may return an error which indicates that BAR2 SGE Queue |
755 | * registers aren't available. If an error is not returned, then the |
756 | * following values are returned: |
757 | * |
758 | * *@pbar2_qoffset: the BAR2 Offset of the @qid Registers |
759 | * *@pbar2_qid: the BAR2 SGE Queue ID or 0 of @qid |
760 | * |
761 | * If the returned BAR2 Queue ID is 0, then BAR2 SGE registers which |
762 | * require the "Inferred Queue ID" ability may be used. E.g. the |
763 | * Write Combining Doorbell Buffer. If the BAR2 Queue ID is not 0, |
764 | * then these "Inferred Queue ID" register may not be used. |
765 | */ |
766 | int t4vf_bar2_sge_qregs(struct adapter *adapter, |
767 | unsigned int qid, |
768 | enum t4_bar2_qtype qtype, |
769 | u64 *pbar2_qoffset, |
770 | unsigned int *pbar2_qid) |
771 | { |
772 | unsigned int page_shift, page_size, qpp_shift, qpp_mask; |
773 | u64 bar2_page_offset, bar2_qoffset; |
774 | unsigned int bar2_qid, bar2_qid_offset, bar2_qinferred; |
775 | |
776 | /* T4 doesn't support BAR2 SGE Queue registers. |
777 | */ |
778 | if (is_t4(chip: adapter->params.chip)) |
779 | return -EINVAL; |
780 | |
781 | /* Get our SGE Page Size parameters. |
782 | */ |
783 | page_shift = adapter->params.sge.sge_vf_hps + 10; |
784 | page_size = 1 << page_shift; |
785 | |
786 | /* Get the right Queues per Page parameters for our Queue. |
787 | */ |
788 | qpp_shift = (qtype == T4_BAR2_QTYPE_EGRESS |
789 | ? adapter->params.sge.sge_vf_eq_qpp |
790 | : adapter->params.sge.sge_vf_iq_qpp); |
791 | qpp_mask = (1 << qpp_shift) - 1; |
792 | |
793 | /* Calculate the basics of the BAR2 SGE Queue register area: |
794 | * o The BAR2 page the Queue registers will be in. |
795 | * o The BAR2 Queue ID. |
796 | * o The BAR2 Queue ID Offset into the BAR2 page. |
797 | */ |
798 | bar2_page_offset = ((u64)(qid >> qpp_shift) << page_shift); |
799 | bar2_qid = qid & qpp_mask; |
800 | bar2_qid_offset = bar2_qid * SGE_UDB_SIZE; |
801 | |
802 | /* If the BAR2 Queue ID Offset is less than the Page Size, then the |
803 | * hardware will infer the Absolute Queue ID simply from the writes to |
804 | * the BAR2 Queue ID Offset within the BAR2 Page (and we need to use a |
805 | * BAR2 Queue ID of 0 for those writes). Otherwise, we'll simply |
806 | * write to the first BAR2 SGE Queue Area within the BAR2 Page with |
807 | * the BAR2 Queue ID and the hardware will infer the Absolute Queue ID |
808 | * from the BAR2 Page and BAR2 Queue ID. |
809 | * |
810 | * One important censequence of this is that some BAR2 SGE registers |
811 | * have a "Queue ID" field and we can write the BAR2 SGE Queue ID |
812 | * there. But other registers synthesize the SGE Queue ID purely |
813 | * from the writes to the registers -- the Write Combined Doorbell |
814 | * Buffer is a good example. These BAR2 SGE Registers are only |
815 | * available for those BAR2 SGE Register areas where the SGE Absolute |
816 | * Queue ID can be inferred from simple writes. |
817 | */ |
818 | bar2_qoffset = bar2_page_offset; |
819 | bar2_qinferred = (bar2_qid_offset < page_size); |
820 | if (bar2_qinferred) { |
821 | bar2_qoffset += bar2_qid_offset; |
822 | bar2_qid = 0; |
823 | } |
824 | |
825 | *pbar2_qoffset = bar2_qoffset; |
826 | *pbar2_qid = bar2_qid; |
827 | return 0; |
828 | } |
829 | |
830 | unsigned int t4vf_get_pf_from_vf(struct adapter *adapter) |
831 | { |
832 | u32 whoami; |
833 | |
834 | whoami = t4_read_reg(adapter, T4VF_PL_BASE_ADDR + PL_VF_WHOAMI_A); |
835 | return (CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5 ? |
836 | SOURCEPF_G(whoami) : T6_SOURCEPF_G(whoami)); |
837 | } |
838 | |
839 | /** |
840 | * t4vf_get_sge_params - retrieve adapter Scatter gather Engine parameters |
841 | * @adapter: the adapter |
842 | * |
843 | * Retrieves various core SGE parameters in the form of hardware SGE |
844 | * register values. The caller is responsible for decoding these as |
845 | * needed. The SGE parameters are stored in @adapter->params.sge. |
846 | */ |
847 | int t4vf_get_sge_params(struct adapter *adapter) |
848 | { |
849 | struct sge_params *sge_params = &adapter->params.sge; |
850 | u32 params[7], vals[7]; |
851 | int v; |
852 | |
853 | params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) | |
854 | FW_PARAMS_PARAM_XYZ_V(SGE_CONTROL_A)); |
855 | params[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) | |
856 | FW_PARAMS_PARAM_XYZ_V(SGE_HOST_PAGE_SIZE_A)); |
857 | params[2] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) | |
858 | FW_PARAMS_PARAM_XYZ_V(SGE_FL_BUFFER_SIZE0_A)); |
859 | params[3] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) | |
860 | FW_PARAMS_PARAM_XYZ_V(SGE_FL_BUFFER_SIZE1_A)); |
861 | params[4] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) | |
862 | FW_PARAMS_PARAM_XYZ_V(SGE_TIMER_VALUE_0_AND_1_A)); |
863 | params[5] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) | |
864 | FW_PARAMS_PARAM_XYZ_V(SGE_TIMER_VALUE_2_AND_3_A)); |
865 | params[6] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) | |
866 | FW_PARAMS_PARAM_XYZ_V(SGE_TIMER_VALUE_4_AND_5_A)); |
867 | v = t4vf_query_params(adapter, nparams: 7, params, vals); |
868 | if (v) |
869 | return v; |
870 | sge_params->sge_control = vals[0]; |
871 | sge_params->sge_host_page_size = vals[1]; |
872 | sge_params->sge_fl_buffer_size[0] = vals[2]; |
873 | sge_params->sge_fl_buffer_size[1] = vals[3]; |
874 | sge_params->sge_timer_value_0_and_1 = vals[4]; |
875 | sge_params->sge_timer_value_2_and_3 = vals[5]; |
876 | sge_params->sge_timer_value_4_and_5 = vals[6]; |
877 | |
878 | /* T4 uses a single control field to specify both the PCIe Padding and |
879 | * Packing Boundary. T5 introduced the ability to specify these |
880 | * separately with the Padding Boundary in SGE_CONTROL and Packing |
881 | * Boundary in SGE_CONTROL2. So for T5 and later we need to grab |
882 | * SGE_CONTROL in order to determine how ingress packet data will be |
883 | * laid out in Packed Buffer Mode. Unfortunately, older versions of |
884 | * the firmware won't let us retrieve SGE_CONTROL2 so if we get a |
885 | * failure grabbing it we throw an error since we can't figure out the |
886 | * right value. |
887 | */ |
888 | if (!is_t4(chip: adapter->params.chip)) { |
889 | params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) | |
890 | FW_PARAMS_PARAM_XYZ_V(SGE_CONTROL2_A)); |
891 | v = t4vf_query_params(adapter, nparams: 1, params, vals); |
892 | if (v != FW_SUCCESS) { |
893 | dev_err(adapter->pdev_dev, |
894 | "Unable to get SGE Control2; " |
895 | "probably old firmware.\n" ); |
896 | return v; |
897 | } |
898 | sge_params->sge_control2 = vals[0]; |
899 | } |
900 | |
901 | params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) | |
902 | FW_PARAMS_PARAM_XYZ_V(SGE_INGRESS_RX_THRESHOLD_A)); |
903 | params[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) | |
904 | FW_PARAMS_PARAM_XYZ_V(SGE_CONM_CTRL_A)); |
905 | v = t4vf_query_params(adapter, nparams: 2, params, vals); |
906 | if (v) |
907 | return v; |
908 | sge_params->sge_ingress_rx_threshold = vals[0]; |
909 | sge_params->sge_congestion_control = vals[1]; |
910 | |
911 | /* For T5 and later we want to use the new BAR2 Doorbells. |
912 | * Unfortunately, older firmware didn't allow the this register to be |
913 | * read. |
914 | */ |
915 | if (!is_t4(chip: adapter->params.chip)) { |
916 | unsigned int pf, s_hps, s_qpp; |
917 | |
918 | params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) | |
919 | FW_PARAMS_PARAM_XYZ_V( |
920 | SGE_EGRESS_QUEUES_PER_PAGE_VF_A)); |
921 | params[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) | |
922 | FW_PARAMS_PARAM_XYZ_V( |
923 | SGE_INGRESS_QUEUES_PER_PAGE_VF_A)); |
924 | v = t4vf_query_params(adapter, nparams: 2, params, vals); |
925 | if (v != FW_SUCCESS) { |
926 | dev_warn(adapter->pdev_dev, |
927 | "Unable to get VF SGE Queues/Page; " |
928 | "probably old firmware.\n" ); |
929 | return v; |
930 | } |
931 | sge_params->sge_egress_queues_per_page = vals[0]; |
932 | sge_params->sge_ingress_queues_per_page = vals[1]; |
933 | |
934 | /* We need the Queues/Page for our VF. This is based on the |
935 | * PF from which we're instantiated and is indexed in the |
936 | * register we just read. Do it once here so other code in |
937 | * the driver can just use it. |
938 | */ |
939 | pf = t4vf_get_pf_from_vf(adapter); |
940 | s_hps = (HOSTPAGESIZEPF0_S + |
941 | (HOSTPAGESIZEPF1_S - HOSTPAGESIZEPF0_S) * pf); |
942 | sge_params->sge_vf_hps = |
943 | ((sge_params->sge_host_page_size >> s_hps) |
944 | & HOSTPAGESIZEPF0_M); |
945 | |
946 | s_qpp = (QUEUESPERPAGEPF0_S + |
947 | (QUEUESPERPAGEPF1_S - QUEUESPERPAGEPF0_S) * pf); |
948 | sge_params->sge_vf_eq_qpp = |
949 | ((sge_params->sge_egress_queues_per_page >> s_qpp) |
950 | & QUEUESPERPAGEPF0_M); |
951 | sge_params->sge_vf_iq_qpp = |
952 | ((sge_params->sge_ingress_queues_per_page >> s_qpp) |
953 | & QUEUESPERPAGEPF0_M); |
954 | } |
955 | |
956 | return 0; |
957 | } |
958 | |
959 | /** |
960 | * t4vf_get_vpd_params - retrieve device VPD paremeters |
961 | * @adapter: the adapter |
962 | * |
963 | * Retrives various device Vital Product Data parameters. The parameters |
964 | * are stored in @adapter->params.vpd. |
965 | */ |
966 | int t4vf_get_vpd_params(struct adapter *adapter) |
967 | { |
968 | struct vpd_params *vpd_params = &adapter->params.vpd; |
969 | u32 params[7], vals[7]; |
970 | int v; |
971 | |
972 | params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) | |
973 | FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_CCLK)); |
974 | v = t4vf_query_params(adapter, nparams: 1, params, vals); |
975 | if (v) |
976 | return v; |
977 | vpd_params->cclk = vals[0]; |
978 | |
979 | return 0; |
980 | } |
981 | |
982 | /** |
983 | * t4vf_get_dev_params - retrieve device paremeters |
984 | * @adapter: the adapter |
985 | * |
986 | * Retrives various device parameters. The parameters are stored in |
987 | * @adapter->params.dev. |
988 | */ |
989 | int t4vf_get_dev_params(struct adapter *adapter) |
990 | { |
991 | struct dev_params *dev_params = &adapter->params.dev; |
992 | u32 params[7], vals[7]; |
993 | int v; |
994 | |
995 | params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) | |
996 | FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_FWREV)); |
997 | params[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) | |
998 | FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_TPREV)); |
999 | v = t4vf_query_params(adapter, nparams: 2, params, vals); |
1000 | if (v) |
1001 | return v; |
1002 | dev_params->fwrev = vals[0]; |
1003 | dev_params->tprev = vals[1]; |
1004 | |
1005 | return 0; |
1006 | } |
1007 | |
1008 | /** |
1009 | * t4vf_get_rss_glb_config - retrieve adapter RSS Global Configuration |
1010 | * @adapter: the adapter |
1011 | * |
1012 | * Retrieves global RSS mode and parameters with which we have to live |
1013 | * and stores them in the @adapter's RSS parameters. |
1014 | */ |
1015 | int (struct adapter *adapter) |
1016 | { |
1017 | struct rss_params * = &adapter->params.rss; |
1018 | struct fw_rss_glb_config_cmd cmd, rpl; |
1019 | int v; |
1020 | |
1021 | /* |
1022 | * Execute an RSS Global Configuration read command to retrieve |
1023 | * our RSS configuration. |
1024 | */ |
1025 | memset(&cmd, 0, sizeof(cmd)); |
1026 | cmd.op_to_write = cpu_to_be32(FW_CMD_OP_V(FW_RSS_GLB_CONFIG_CMD) | |
1027 | FW_CMD_REQUEST_F | |
1028 | FW_CMD_READ_F); |
1029 | cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd)); |
1030 | v = t4vf_wr_mbox(adapter, cmd: &cmd, size: sizeof(cmd), rpl: &rpl); |
1031 | if (v) |
1032 | return v; |
1033 | |
1034 | /* |
1035 | * Transate the big-endian RSS Global Configuration into our |
1036 | * cpu-endian format based on the RSS mode. We also do first level |
1037 | * filtering at this point to weed out modes which don't support |
1038 | * VF Drivers ... |
1039 | */ |
1040 | rss->mode = FW_RSS_GLB_CONFIG_CMD_MODE_G( |
1041 | be32_to_cpu(rpl.u.manual.mode_pkd)); |
1042 | switch (rss->mode) { |
1043 | case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: { |
1044 | u32 word = be32_to_cpu( |
1045 | rpl.u.basicvirtual.synmapen_to_hashtoeplitz); |
1046 | |
1047 | rss->u.basicvirtual.synmapen = |
1048 | ((word & FW_RSS_GLB_CONFIG_CMD_SYNMAPEN_F) != 0); |
1049 | rss->u.basicvirtual.syn4tupenipv6 = |
1050 | ((word & FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV6_F) != 0); |
1051 | rss->u.basicvirtual.syn2tupenipv6 = |
1052 | ((word & FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV6_F) != 0); |
1053 | rss->u.basicvirtual.syn4tupenipv4 = |
1054 | ((word & FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV4_F) != 0); |
1055 | rss->u.basicvirtual.syn2tupenipv4 = |
1056 | ((word & FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV4_F) != 0); |
1057 | |
1058 | rss->u.basicvirtual.ofdmapen = |
1059 | ((word & FW_RSS_GLB_CONFIG_CMD_OFDMAPEN_F) != 0); |
1060 | |
1061 | rss->u.basicvirtual.tnlmapen = |
1062 | ((word & FW_RSS_GLB_CONFIG_CMD_TNLMAPEN_F) != 0); |
1063 | rss->u.basicvirtual.tnlalllookup = |
1064 | ((word & FW_RSS_GLB_CONFIG_CMD_TNLALLLKP_F) != 0); |
1065 | |
1066 | rss->u.basicvirtual.hashtoeplitz = |
1067 | ((word & FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ_F) != 0); |
1068 | |
1069 | /* we need at least Tunnel Map Enable to be set */ |
1070 | if (!rss->u.basicvirtual.tnlmapen) |
1071 | return -EINVAL; |
1072 | break; |
1073 | } |
1074 | |
1075 | default: |
1076 | /* all unknown/unsupported RSS modes result in an error */ |
1077 | return -EINVAL; |
1078 | } |
1079 | |
1080 | return 0; |
1081 | } |
1082 | |
1083 | /** |
1084 | * t4vf_get_vfres - retrieve VF resource limits |
1085 | * @adapter: the adapter |
1086 | * |
1087 | * Retrieves configured resource limits and capabilities for a virtual |
1088 | * function. The results are stored in @adapter->vfres. |
1089 | */ |
1090 | int t4vf_get_vfres(struct adapter *adapter) |
1091 | { |
1092 | struct vf_resources *vfres = &adapter->params.vfres; |
1093 | struct fw_pfvf_cmd cmd, rpl; |
1094 | int v; |
1095 | u32 word; |
1096 | |
1097 | /* |
1098 | * Execute PFVF Read command to get VF resource limits; bail out early |
1099 | * with error on command failure. |
1100 | */ |
1101 | memset(&cmd, 0, sizeof(cmd)); |
1102 | cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_PFVF_CMD) | |
1103 | FW_CMD_REQUEST_F | |
1104 | FW_CMD_READ_F); |
1105 | cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd)); |
1106 | v = t4vf_wr_mbox(adapter, cmd: &cmd, size: sizeof(cmd), rpl: &rpl); |
1107 | if (v) |
1108 | return v; |
1109 | |
1110 | /* |
1111 | * Extract VF resource limits and return success. |
1112 | */ |
1113 | word = be32_to_cpu(rpl.niqflint_niq); |
1114 | vfres->niqflint = FW_PFVF_CMD_NIQFLINT_G(word); |
1115 | vfres->niq = FW_PFVF_CMD_NIQ_G(word); |
1116 | |
1117 | word = be32_to_cpu(rpl.type_to_neq); |
1118 | vfres->neq = FW_PFVF_CMD_NEQ_G(word); |
1119 | vfres->pmask = FW_PFVF_CMD_PMASK_G(word); |
1120 | |
1121 | word = be32_to_cpu(rpl.tc_to_nexactf); |
1122 | vfres->tc = FW_PFVF_CMD_TC_G(word); |
1123 | vfres->nvi = FW_PFVF_CMD_NVI_G(word); |
1124 | vfres->nexactf = FW_PFVF_CMD_NEXACTF_G(word); |
1125 | |
1126 | word = be32_to_cpu(rpl.r_caps_to_nethctrl); |
1127 | vfres->r_caps = FW_PFVF_CMD_R_CAPS_G(word); |
1128 | vfres->wx_caps = FW_PFVF_CMD_WX_CAPS_G(word); |
1129 | vfres->nethctrl = FW_PFVF_CMD_NETHCTRL_G(word); |
1130 | |
1131 | return 0; |
1132 | } |
1133 | |
1134 | /** |
1135 | * t4vf_read_rss_vi_config - read a VI's RSS configuration |
1136 | * @adapter: the adapter |
1137 | * @viid: Virtual Interface ID |
1138 | * @config: pointer to host-native VI RSS Configuration buffer |
1139 | * |
1140 | * Reads the Virtual Interface's RSS configuration information and |
1141 | * translates it into CPU-native format. |
1142 | */ |
1143 | int (struct adapter *adapter, unsigned int viid, |
1144 | union rss_vi_config *config) |
1145 | { |
1146 | struct fw_rss_vi_config_cmd cmd, rpl; |
1147 | int v; |
1148 | |
1149 | memset(&cmd, 0, sizeof(cmd)); |
1150 | cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_RSS_VI_CONFIG_CMD) | |
1151 | FW_CMD_REQUEST_F | |
1152 | FW_CMD_READ_F | |
1153 | FW_RSS_VI_CONFIG_CMD_VIID(viid)); |
1154 | cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd)); |
1155 | v = t4vf_wr_mbox(adapter, cmd: &cmd, size: sizeof(cmd), rpl: &rpl); |
1156 | if (v) |
1157 | return v; |
1158 | |
1159 | switch (adapter->params.rss.mode) { |
1160 | case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: { |
1161 | u32 word = be32_to_cpu(rpl.u.basicvirtual.defaultq_to_udpen); |
1162 | |
1163 | config->basicvirtual.ip6fourtupen = |
1164 | ((word & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN_F) != 0); |
1165 | config->basicvirtual.ip6twotupen = |
1166 | ((word & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN_F) != 0); |
1167 | config->basicvirtual.ip4fourtupen = |
1168 | ((word & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN_F) != 0); |
1169 | config->basicvirtual.ip4twotupen = |
1170 | ((word & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN_F) != 0); |
1171 | config->basicvirtual.udpen = |
1172 | ((word & FW_RSS_VI_CONFIG_CMD_UDPEN_F) != 0); |
1173 | config->basicvirtual.defaultq = |
1174 | FW_RSS_VI_CONFIG_CMD_DEFAULTQ_G(word); |
1175 | break; |
1176 | } |
1177 | |
1178 | default: |
1179 | return -EINVAL; |
1180 | } |
1181 | |
1182 | return 0; |
1183 | } |
1184 | |
1185 | /** |
1186 | * t4vf_write_rss_vi_config - write a VI's RSS configuration |
1187 | * @adapter: the adapter |
1188 | * @viid: Virtual Interface ID |
1189 | * @config: pointer to host-native VI RSS Configuration buffer |
1190 | * |
1191 | * Write the Virtual Interface's RSS configuration information |
1192 | * (translating it into firmware-native format before writing). |
1193 | */ |
1194 | int (struct adapter *adapter, unsigned int viid, |
1195 | union rss_vi_config *config) |
1196 | { |
1197 | struct fw_rss_vi_config_cmd cmd, rpl; |
1198 | |
1199 | memset(&cmd, 0, sizeof(cmd)); |
1200 | cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_RSS_VI_CONFIG_CMD) | |
1201 | FW_CMD_REQUEST_F | |
1202 | FW_CMD_WRITE_F | |
1203 | FW_RSS_VI_CONFIG_CMD_VIID(viid)); |
1204 | cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd)); |
1205 | switch (adapter->params.rss.mode) { |
1206 | case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: { |
1207 | u32 word = 0; |
1208 | |
1209 | if (config->basicvirtual.ip6fourtupen) |
1210 | word |= FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN_F; |
1211 | if (config->basicvirtual.ip6twotupen) |
1212 | word |= FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN_F; |
1213 | if (config->basicvirtual.ip4fourtupen) |
1214 | word |= FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN_F; |
1215 | if (config->basicvirtual.ip4twotupen) |
1216 | word |= FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN_F; |
1217 | if (config->basicvirtual.udpen) |
1218 | word |= FW_RSS_VI_CONFIG_CMD_UDPEN_F; |
1219 | word |= FW_RSS_VI_CONFIG_CMD_DEFAULTQ_V( |
1220 | config->basicvirtual.defaultq); |
1221 | cmd.u.basicvirtual.defaultq_to_udpen = cpu_to_be32(word); |
1222 | break; |
1223 | } |
1224 | |
1225 | default: |
1226 | return -EINVAL; |
1227 | } |
1228 | |
1229 | return t4vf_wr_mbox(adapter, cmd: &cmd, size: sizeof(cmd), rpl: &rpl); |
1230 | } |
1231 | |
1232 | /** |
1233 | * t4vf_config_rss_range - configure a portion of the RSS mapping table |
1234 | * @adapter: the adapter |
1235 | * @viid: Virtual Interface of RSS Table Slice |
1236 | * @start: starting entry in the table to write |
1237 | * @n: how many table entries to write |
1238 | * @rspq: values for the "Response Queue" (Ingress Queue) lookup table |
1239 | * @nrspq: number of values in @rspq |
1240 | * |
1241 | * Programs the selected part of the VI's RSS mapping table with the |
1242 | * provided values. If @nrspq < @n the supplied values are used repeatedly |
1243 | * until the full table range is populated. |
1244 | * |
1245 | * The caller must ensure the values in @rspq are in the range 0..1023. |
1246 | */ |
1247 | int (struct adapter *adapter, unsigned int viid, |
1248 | int start, int n, const u16 *rspq, int nrspq) |
1249 | { |
1250 | const u16 *rsp = rspq; |
1251 | const u16 *rsp_end = rspq+nrspq; |
1252 | struct fw_rss_ind_tbl_cmd cmd; |
1253 | |
1254 | /* |
1255 | * Initialize firmware command template to write the RSS table. |
1256 | */ |
1257 | memset(&cmd, 0, sizeof(cmd)); |
1258 | cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_RSS_IND_TBL_CMD) | |
1259 | FW_CMD_REQUEST_F | |
1260 | FW_CMD_WRITE_F | |
1261 | FW_RSS_IND_TBL_CMD_VIID_V(viid)); |
1262 | cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd)); |
1263 | |
1264 | /* |
1265 | * Each firmware RSS command can accommodate up to 32 RSS Ingress |
1266 | * Queue Identifiers. These Ingress Queue IDs are packed three to |
1267 | * a 32-bit word as 10-bit values with the upper remaining 2 bits |
1268 | * reserved. |
1269 | */ |
1270 | while (n > 0) { |
1271 | __be32 *qp = &cmd.iq0_to_iq2; |
1272 | int nq = min(n, 32); |
1273 | int ret; |
1274 | |
1275 | /* |
1276 | * Set up the firmware RSS command header to send the next |
1277 | * "nq" Ingress Queue IDs to the firmware. |
1278 | */ |
1279 | cmd.niqid = cpu_to_be16(nq); |
1280 | cmd.startidx = cpu_to_be16(start); |
1281 | |
1282 | /* |
1283 | * "nq" more done for the start of the next loop. |
1284 | */ |
1285 | start += nq; |
1286 | n -= nq; |
1287 | |
1288 | /* |
1289 | * While there are still Ingress Queue IDs to stuff into the |
1290 | * current firmware RSS command, retrieve them from the |
1291 | * Ingress Queue ID array and insert them into the command. |
1292 | */ |
1293 | while (nq > 0) { |
1294 | /* |
1295 | * Grab up to the next 3 Ingress Queue IDs (wrapping |
1296 | * around the Ingress Queue ID array if necessary) and |
1297 | * insert them into the firmware RSS command at the |
1298 | * current 3-tuple position within the commad. |
1299 | */ |
1300 | u16 qbuf[3]; |
1301 | u16 *qbp = qbuf; |
1302 | int nqbuf = min(3, nq); |
1303 | |
1304 | nq -= nqbuf; |
1305 | qbuf[0] = qbuf[1] = qbuf[2] = 0; |
1306 | while (nqbuf) { |
1307 | nqbuf--; |
1308 | *qbp++ = *rsp++; |
1309 | if (rsp >= rsp_end) |
1310 | rsp = rspq; |
1311 | } |
1312 | *qp++ = cpu_to_be32(FW_RSS_IND_TBL_CMD_IQ0_V(qbuf[0]) | |
1313 | FW_RSS_IND_TBL_CMD_IQ1_V(qbuf[1]) | |
1314 | FW_RSS_IND_TBL_CMD_IQ2_V(qbuf[2])); |
1315 | } |
1316 | |
1317 | /* |
1318 | * Send this portion of the RRS table update to the firmware; |
1319 | * bail out on any errors. |
1320 | */ |
1321 | ret = t4vf_wr_mbox(adapter, cmd: &cmd, size: sizeof(cmd), NULL); |
1322 | if (ret) |
1323 | return ret; |
1324 | } |
1325 | return 0; |
1326 | } |
1327 | |
1328 | /** |
1329 | * t4vf_alloc_vi - allocate a virtual interface on a port |
1330 | * @adapter: the adapter |
1331 | * @port_id: physical port associated with the VI |
1332 | * |
1333 | * Allocate a new Virtual Interface and bind it to the indicated |
1334 | * physical port. Return the new Virtual Interface Identifier on |
1335 | * success, or a [negative] error number on failure. |
1336 | */ |
1337 | int t4vf_alloc_vi(struct adapter *adapter, int port_id) |
1338 | { |
1339 | struct fw_vi_cmd cmd, rpl; |
1340 | int v; |
1341 | |
1342 | /* |
1343 | * Execute a VI command to allocate Virtual Interface and return its |
1344 | * VIID. |
1345 | */ |
1346 | memset(&cmd, 0, sizeof(cmd)); |
1347 | cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_VI_CMD) | |
1348 | FW_CMD_REQUEST_F | |
1349 | FW_CMD_WRITE_F | |
1350 | FW_CMD_EXEC_F); |
1351 | cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(cmd) | |
1352 | FW_VI_CMD_ALLOC_F); |
1353 | cmd.portid_pkd = FW_VI_CMD_PORTID_V(port_id); |
1354 | v = t4vf_wr_mbox(adapter, cmd: &cmd, size: sizeof(cmd), rpl: &rpl); |
1355 | if (v) |
1356 | return v; |
1357 | |
1358 | return FW_VI_CMD_VIID_G(be16_to_cpu(rpl.type_viid)); |
1359 | } |
1360 | |
1361 | /** |
1362 | * t4vf_free_vi -- free a virtual interface |
1363 | * @adapter: the adapter |
1364 | * @viid: the virtual interface identifier |
1365 | * |
1366 | * Free a previously allocated Virtual Interface. Return an error on |
1367 | * failure. |
1368 | */ |
1369 | int t4vf_free_vi(struct adapter *adapter, int viid) |
1370 | { |
1371 | struct fw_vi_cmd cmd; |
1372 | |
1373 | /* |
1374 | * Execute a VI command to free the Virtual Interface. |
1375 | */ |
1376 | memset(&cmd, 0, sizeof(cmd)); |
1377 | cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_VI_CMD) | |
1378 | FW_CMD_REQUEST_F | |
1379 | FW_CMD_EXEC_F); |
1380 | cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(cmd) | |
1381 | FW_VI_CMD_FREE_F); |
1382 | cmd.type_viid = cpu_to_be16(FW_VI_CMD_VIID_V(viid)); |
1383 | return t4vf_wr_mbox(adapter, cmd: &cmd, size: sizeof(cmd), NULL); |
1384 | } |
1385 | |
1386 | /** |
1387 | * t4vf_enable_vi - enable/disable a virtual interface |
1388 | * @adapter: the adapter |
1389 | * @viid: the Virtual Interface ID |
1390 | * @rx_en: 1=enable Rx, 0=disable Rx |
1391 | * @tx_en: 1=enable Tx, 0=disable Tx |
1392 | * |
1393 | * Enables/disables a virtual interface. |
1394 | */ |
1395 | int t4vf_enable_vi(struct adapter *adapter, unsigned int viid, |
1396 | bool rx_en, bool tx_en) |
1397 | { |
1398 | struct fw_vi_enable_cmd cmd; |
1399 | |
1400 | memset(&cmd, 0, sizeof(cmd)); |
1401 | cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_ENABLE_CMD) | |
1402 | FW_CMD_REQUEST_F | |
1403 | FW_CMD_EXEC_F | |
1404 | FW_VI_ENABLE_CMD_VIID_V(viid)); |
1405 | cmd.ien_to_len16 = cpu_to_be32(FW_VI_ENABLE_CMD_IEN_V(rx_en) | |
1406 | FW_VI_ENABLE_CMD_EEN_V(tx_en) | |
1407 | FW_LEN16(cmd)); |
1408 | return t4vf_wr_mbox(adapter, cmd: &cmd, size: sizeof(cmd), NULL); |
1409 | } |
1410 | |
1411 | /** |
1412 | * t4vf_enable_pi - enable/disable a Port's virtual interface |
1413 | * @adapter: the adapter |
1414 | * @pi: the Port Information structure |
1415 | * @rx_en: 1=enable Rx, 0=disable Rx |
1416 | * @tx_en: 1=enable Tx, 0=disable Tx |
1417 | * |
1418 | * Enables/disables a Port's virtual interface. If the Virtual |
1419 | * Interface enable/disable operation is successful, we notify the |
1420 | * OS-specific code of a potential Link Status change via the OS Contract |
1421 | * API t4vf_os_link_changed(). |
1422 | */ |
1423 | int t4vf_enable_pi(struct adapter *adapter, struct port_info *pi, |
1424 | bool rx_en, bool tx_en) |
1425 | { |
1426 | int ret = t4vf_enable_vi(adapter, viid: pi->viid, rx_en, tx_en); |
1427 | |
1428 | if (ret) |
1429 | return ret; |
1430 | t4vf_os_link_changed(adapter, pi->pidx, |
1431 | rx_en && tx_en && pi->link_cfg.link_ok); |
1432 | return 0; |
1433 | } |
1434 | |
1435 | /** |
1436 | * t4vf_identify_port - identify a VI's port by blinking its LED |
1437 | * @adapter: the adapter |
1438 | * @viid: the Virtual Interface ID |
1439 | * @nblinks: how many times to blink LED at 2.5 Hz |
1440 | * |
1441 | * Identifies a VI's port by blinking its LED. |
1442 | */ |
1443 | int t4vf_identify_port(struct adapter *adapter, unsigned int viid, |
1444 | unsigned int nblinks) |
1445 | { |
1446 | struct fw_vi_enable_cmd cmd; |
1447 | |
1448 | memset(&cmd, 0, sizeof(cmd)); |
1449 | cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_ENABLE_CMD) | |
1450 | FW_CMD_REQUEST_F | |
1451 | FW_CMD_EXEC_F | |
1452 | FW_VI_ENABLE_CMD_VIID_V(viid)); |
1453 | cmd.ien_to_len16 = cpu_to_be32(FW_VI_ENABLE_CMD_LED_F | |
1454 | FW_LEN16(cmd)); |
1455 | cmd.blinkdur = cpu_to_be16(nblinks); |
1456 | return t4vf_wr_mbox(adapter, cmd: &cmd, size: sizeof(cmd), NULL); |
1457 | } |
1458 | |
1459 | /** |
1460 | * t4vf_set_rxmode - set Rx properties of a virtual interface |
1461 | * @adapter: the adapter |
1462 | * @viid: the VI id |
1463 | * @mtu: the new MTU or -1 for no change |
1464 | * @promisc: 1 to enable promiscuous mode, 0 to disable it, -1 no change |
1465 | * @all_multi: 1 to enable all-multi mode, 0 to disable it, -1 no change |
1466 | * @bcast: 1 to enable broadcast Rx, 0 to disable it, -1 no change |
1467 | * @vlanex: 1 to enable hardware VLAN Tag extraction, 0 to disable it, |
1468 | * -1 no change |
1469 | * @sleep_ok: call is allowed to sleep |
1470 | * |
1471 | * Sets Rx properties of a virtual interface. |
1472 | */ |
1473 | int t4vf_set_rxmode(struct adapter *adapter, unsigned int viid, |
1474 | int mtu, int promisc, int all_multi, int bcast, int vlanex, |
1475 | bool sleep_ok) |
1476 | { |
1477 | struct fw_vi_rxmode_cmd cmd; |
1478 | |
1479 | /* convert to FW values */ |
1480 | if (mtu < 0) |
1481 | mtu = FW_VI_RXMODE_CMD_MTU_M; |
1482 | if (promisc < 0) |
1483 | promisc = FW_VI_RXMODE_CMD_PROMISCEN_M; |
1484 | if (all_multi < 0) |
1485 | all_multi = FW_VI_RXMODE_CMD_ALLMULTIEN_M; |
1486 | if (bcast < 0) |
1487 | bcast = FW_VI_RXMODE_CMD_BROADCASTEN_M; |
1488 | if (vlanex < 0) |
1489 | vlanex = FW_VI_RXMODE_CMD_VLANEXEN_M; |
1490 | |
1491 | memset(&cmd, 0, sizeof(cmd)); |
1492 | cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_RXMODE_CMD) | |
1493 | FW_CMD_REQUEST_F | |
1494 | FW_CMD_WRITE_F | |
1495 | FW_VI_RXMODE_CMD_VIID_V(viid)); |
1496 | cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd)); |
1497 | cmd.mtu_to_vlanexen = |
1498 | cpu_to_be32(FW_VI_RXMODE_CMD_MTU_V(mtu) | |
1499 | FW_VI_RXMODE_CMD_PROMISCEN_V(promisc) | |
1500 | FW_VI_RXMODE_CMD_ALLMULTIEN_V(all_multi) | |
1501 | FW_VI_RXMODE_CMD_BROADCASTEN_V(bcast) | |
1502 | FW_VI_RXMODE_CMD_VLANEXEN_V(vlanex)); |
1503 | return t4vf_wr_mbox_core(adapter, cmd: &cmd, size: sizeof(cmd), NULL, sleep_ok); |
1504 | } |
1505 | |
1506 | /** |
1507 | * t4vf_alloc_mac_filt - allocates exact-match filters for MAC addresses |
1508 | * @adapter: the adapter |
1509 | * @viid: the Virtual Interface Identifier |
1510 | * @free: if true any existing filters for this VI id are first removed |
1511 | * @naddr: the number of MAC addresses to allocate filters for (up to 7) |
1512 | * @addr: the MAC address(es) |
1513 | * @idx: where to store the index of each allocated filter |
1514 | * @hash: pointer to hash address filter bitmap |
1515 | * @sleep_ok: call is allowed to sleep |
1516 | * |
1517 | * Allocates an exact-match filter for each of the supplied addresses and |
1518 | * sets it to the corresponding address. If @idx is not %NULL it should |
1519 | * have at least @naddr entries, each of which will be set to the index of |
1520 | * the filter allocated for the corresponding MAC address. If a filter |
1521 | * could not be allocated for an address its index is set to 0xffff. |
1522 | * If @hash is not %NULL addresses that fail to allocate an exact filter |
1523 | * are hashed and update the hash filter bitmap pointed at by @hash. |
1524 | * |
1525 | * Returns a negative error number or the number of filters allocated. |
1526 | */ |
1527 | int t4vf_alloc_mac_filt(struct adapter *adapter, unsigned int viid, bool free, |
1528 | unsigned int naddr, const u8 **addr, u16 *idx, |
1529 | u64 *hash, bool sleep_ok) |
1530 | { |
1531 | int offset, ret = 0; |
1532 | unsigned nfilters = 0; |
1533 | unsigned int rem = naddr; |
1534 | struct fw_vi_mac_cmd cmd, rpl; |
1535 | unsigned int max_naddr = adapter->params.arch.mps_tcam_size; |
1536 | |
1537 | if (naddr > max_naddr) |
1538 | return -EINVAL; |
1539 | |
1540 | for (offset = 0; offset < naddr; /**/) { |
1541 | unsigned int fw_naddr = (rem < ARRAY_SIZE(cmd.u.exact) |
1542 | ? rem |
1543 | : ARRAY_SIZE(cmd.u.exact)); |
1544 | size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd, |
1545 | u.exact[fw_naddr]), 16); |
1546 | struct fw_vi_mac_exact *p; |
1547 | int i; |
1548 | |
1549 | memset(&cmd, 0, sizeof(cmd)); |
1550 | cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD) | |
1551 | FW_CMD_REQUEST_F | |
1552 | FW_CMD_WRITE_F | |
1553 | (free ? FW_CMD_EXEC_F : 0) | |
1554 | FW_VI_MAC_CMD_VIID_V(viid)); |
1555 | cmd.freemacs_to_len16 = |
1556 | cpu_to_be32(FW_VI_MAC_CMD_FREEMACS_V(free) | |
1557 | FW_CMD_LEN16_V(len16)); |
1558 | |
1559 | for (i = 0, p = cmd.u.exact; i < fw_naddr; i++, p++) { |
1560 | p->valid_to_idx = cpu_to_be16( |
1561 | FW_VI_MAC_CMD_VALID_F | |
1562 | FW_VI_MAC_CMD_IDX_V(FW_VI_MAC_ADD_MAC)); |
1563 | memcpy(p->macaddr, addr[offset+i], sizeof(p->macaddr)); |
1564 | } |
1565 | |
1566 | |
1567 | ret = t4vf_wr_mbox_core(adapter, cmd: &cmd, size: sizeof(cmd), rpl: &rpl, |
1568 | sleep_ok); |
1569 | if (ret && ret != -ENOMEM) |
1570 | break; |
1571 | |
1572 | for (i = 0, p = rpl.u.exact; i < fw_naddr; i++, p++) { |
1573 | u16 index = FW_VI_MAC_CMD_IDX_G( |
1574 | be16_to_cpu(p->valid_to_idx)); |
1575 | |
1576 | if (idx) |
1577 | idx[offset+i] = |
1578 | (index >= max_naddr |
1579 | ? 0xffff |
1580 | : index); |
1581 | if (index < max_naddr) |
1582 | nfilters++; |
1583 | else if (hash) |
1584 | *hash |= (1ULL << hash_mac_addr(addr: addr[offset+i])); |
1585 | } |
1586 | |
1587 | free = false; |
1588 | offset += fw_naddr; |
1589 | rem -= fw_naddr; |
1590 | } |
1591 | |
1592 | /* |
1593 | * If there were no errors or we merely ran out of room in our MAC |
1594 | * address arena, return the number of filters actually written. |
1595 | */ |
1596 | if (ret == 0 || ret == -ENOMEM) |
1597 | ret = nfilters; |
1598 | return ret; |
1599 | } |
1600 | |
1601 | /** |
1602 | * t4vf_free_mac_filt - frees exact-match filters of given MAC addresses |
1603 | * @adapter: the adapter |
1604 | * @viid: the VI id |
1605 | * @naddr: the number of MAC addresses to allocate filters for (up to 7) |
1606 | * @addr: the MAC address(es) |
1607 | * @sleep_ok: call is allowed to sleep |
1608 | * |
1609 | * Frees the exact-match filter for each of the supplied addresses |
1610 | * |
1611 | * Returns a negative error number or the number of filters freed. |
1612 | */ |
1613 | int t4vf_free_mac_filt(struct adapter *adapter, unsigned int viid, |
1614 | unsigned int naddr, const u8 **addr, bool sleep_ok) |
1615 | { |
1616 | int offset, ret = 0; |
1617 | struct fw_vi_mac_cmd cmd; |
1618 | unsigned int nfilters = 0; |
1619 | unsigned int max_naddr = adapter->params.arch.mps_tcam_size; |
1620 | unsigned int rem = naddr; |
1621 | |
1622 | if (naddr > max_naddr) |
1623 | return -EINVAL; |
1624 | |
1625 | for (offset = 0; offset < (int)naddr ; /**/) { |
1626 | unsigned int fw_naddr = (rem < ARRAY_SIZE(cmd.u.exact) ? |
1627 | rem : ARRAY_SIZE(cmd.u.exact)); |
1628 | size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd, |
1629 | u.exact[fw_naddr]), 16); |
1630 | struct fw_vi_mac_exact *p; |
1631 | int i; |
1632 | |
1633 | memset(&cmd, 0, sizeof(cmd)); |
1634 | cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD) | |
1635 | FW_CMD_REQUEST_F | |
1636 | FW_CMD_WRITE_F | |
1637 | FW_CMD_EXEC_V(0) | |
1638 | FW_VI_MAC_CMD_VIID_V(viid)); |
1639 | cmd.freemacs_to_len16 = |
1640 | cpu_to_be32(FW_VI_MAC_CMD_FREEMACS_V(0) | |
1641 | FW_CMD_LEN16_V(len16)); |
1642 | |
1643 | for (i = 0, p = cmd.u.exact; i < (int)fw_naddr; i++, p++) { |
1644 | p->valid_to_idx = cpu_to_be16( |
1645 | FW_VI_MAC_CMD_VALID_F | |
1646 | FW_VI_MAC_CMD_IDX_V(FW_VI_MAC_MAC_BASED_FREE)); |
1647 | memcpy(p->macaddr, addr[offset+i], sizeof(p->macaddr)); |
1648 | } |
1649 | |
1650 | ret = t4vf_wr_mbox_core(adapter, cmd: &cmd, size: sizeof(cmd), rpl: &cmd, |
1651 | sleep_ok); |
1652 | if (ret) |
1653 | break; |
1654 | |
1655 | for (i = 0, p = cmd.u.exact; i < fw_naddr; i++, p++) { |
1656 | u16 index = FW_VI_MAC_CMD_IDX_G( |
1657 | be16_to_cpu(p->valid_to_idx)); |
1658 | |
1659 | if (index < max_naddr) |
1660 | nfilters++; |
1661 | } |
1662 | |
1663 | offset += fw_naddr; |
1664 | rem -= fw_naddr; |
1665 | } |
1666 | |
1667 | if (ret == 0) |
1668 | ret = nfilters; |
1669 | return ret; |
1670 | } |
1671 | |
1672 | /** |
1673 | * t4vf_change_mac - modifies the exact-match filter for a MAC address |
1674 | * @adapter: the adapter |
1675 | * @viid: the Virtual Interface ID |
1676 | * @idx: index of existing filter for old value of MAC address, or -1 |
1677 | * @addr: the new MAC address value |
1678 | * @persist: if idx < 0, the new MAC allocation should be persistent |
1679 | * |
1680 | * Modifies an exact-match filter and sets it to the new MAC address. |
1681 | * Note that in general it is not possible to modify the value of a given |
1682 | * filter so the generic way to modify an address filter is to free the |
1683 | * one being used by the old address value and allocate a new filter for |
1684 | * the new address value. @idx can be -1 if the address is a new |
1685 | * addition. |
1686 | * |
1687 | * Returns a negative error number or the index of the filter with the new |
1688 | * MAC value. |
1689 | */ |
1690 | int t4vf_change_mac(struct adapter *adapter, unsigned int viid, |
1691 | int idx, const u8 *addr, bool persist) |
1692 | { |
1693 | int ret; |
1694 | struct fw_vi_mac_cmd cmd, rpl; |
1695 | struct fw_vi_mac_exact *p = &cmd.u.exact[0]; |
1696 | size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd, |
1697 | u.exact[1]), 16); |
1698 | unsigned int max_mac_addr = adapter->params.arch.mps_tcam_size; |
1699 | |
1700 | /* |
1701 | * If this is a new allocation, determine whether it should be |
1702 | * persistent (across a "freemacs" operation) or not. |
1703 | */ |
1704 | if (idx < 0) |
1705 | idx = persist ? FW_VI_MAC_ADD_PERSIST_MAC : FW_VI_MAC_ADD_MAC; |
1706 | |
1707 | memset(&cmd, 0, sizeof(cmd)); |
1708 | cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD) | |
1709 | FW_CMD_REQUEST_F | |
1710 | FW_CMD_WRITE_F | |
1711 | FW_VI_MAC_CMD_VIID_V(viid)); |
1712 | cmd.freemacs_to_len16 = cpu_to_be32(FW_CMD_LEN16_V(len16)); |
1713 | p->valid_to_idx = cpu_to_be16(FW_VI_MAC_CMD_VALID_F | |
1714 | FW_VI_MAC_CMD_IDX_V(idx)); |
1715 | memcpy(p->macaddr, addr, sizeof(p->macaddr)); |
1716 | |
1717 | ret = t4vf_wr_mbox(adapter, cmd: &cmd, size: sizeof(cmd), rpl: &rpl); |
1718 | if (ret == 0) { |
1719 | p = &rpl.u.exact[0]; |
1720 | ret = FW_VI_MAC_CMD_IDX_G(be16_to_cpu(p->valid_to_idx)); |
1721 | if (ret >= max_mac_addr) |
1722 | ret = -ENOMEM; |
1723 | } |
1724 | return ret; |
1725 | } |
1726 | |
1727 | /** |
1728 | * t4vf_set_addr_hash - program the MAC inexact-match hash filter |
1729 | * @adapter: the adapter |
1730 | * @viid: the Virtual Interface Identifier |
1731 | * @ucast: whether the hash filter should also match unicast addresses |
1732 | * @vec: the value to be written to the hash filter |
1733 | * @sleep_ok: call is allowed to sleep |
1734 | * |
1735 | * Sets the 64-bit inexact-match hash filter for a virtual interface. |
1736 | */ |
1737 | int t4vf_set_addr_hash(struct adapter *adapter, unsigned int viid, |
1738 | bool ucast, u64 vec, bool sleep_ok) |
1739 | { |
1740 | struct fw_vi_mac_cmd cmd; |
1741 | size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd, |
1742 | u.exact[0]), 16); |
1743 | |
1744 | memset(&cmd, 0, sizeof(cmd)); |
1745 | cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD) | |
1746 | FW_CMD_REQUEST_F | |
1747 | FW_CMD_WRITE_F | |
1748 | FW_VI_ENABLE_CMD_VIID_V(viid)); |
1749 | cmd.freemacs_to_len16 = cpu_to_be32(FW_VI_MAC_CMD_HASHVECEN_F | |
1750 | FW_VI_MAC_CMD_HASHUNIEN_V(ucast) | |
1751 | FW_CMD_LEN16_V(len16)); |
1752 | cmd.u.hash.hashvec = cpu_to_be64(vec); |
1753 | return t4vf_wr_mbox_core(adapter, cmd: &cmd, size: sizeof(cmd), NULL, sleep_ok); |
1754 | } |
1755 | |
1756 | /** |
1757 | * t4vf_get_port_stats - collect "port" statistics |
1758 | * @adapter: the adapter |
1759 | * @pidx: the port index |
1760 | * @s: the stats structure to fill |
1761 | * |
1762 | * Collect statistics for the "port"'s Virtual Interface. |
1763 | */ |
1764 | int t4vf_get_port_stats(struct adapter *adapter, int pidx, |
1765 | struct t4vf_port_stats *s) |
1766 | { |
1767 | struct port_info *pi = adap2pinfo(adapter, pidx); |
1768 | struct fw_vi_stats_vf fwstats; |
1769 | unsigned int rem = VI_VF_NUM_STATS; |
1770 | __be64 *fwsp = (__be64 *)&fwstats; |
1771 | |
1772 | /* |
1773 | * Grab the Virtual Interface statistics a chunk at a time via mailbox |
1774 | * commands. We could use a Work Request and get all of them at once |
1775 | * but that's an asynchronous interface which is awkward to use. |
1776 | */ |
1777 | while (rem) { |
1778 | unsigned int ix = VI_VF_NUM_STATS - rem; |
1779 | unsigned int nstats = min(6U, rem); |
1780 | struct fw_vi_stats_cmd cmd, rpl; |
1781 | size_t len = (offsetof(struct fw_vi_stats_cmd, u) + |
1782 | sizeof(struct fw_vi_stats_ctl)); |
1783 | size_t len16 = DIV_ROUND_UP(len, 16); |
1784 | int ret; |
1785 | |
1786 | memset(&cmd, 0, sizeof(cmd)); |
1787 | cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_STATS_CMD) | |
1788 | FW_VI_STATS_CMD_VIID_V(pi->viid) | |
1789 | FW_CMD_REQUEST_F | |
1790 | FW_CMD_READ_F); |
1791 | cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16_V(len16)); |
1792 | cmd.u.ctl.nstats_ix = |
1793 | cpu_to_be16(FW_VI_STATS_CMD_IX_V(ix) | |
1794 | FW_VI_STATS_CMD_NSTATS_V(nstats)); |
1795 | ret = t4vf_wr_mbox_ns(adapter, cmd: &cmd, size: len, rpl: &rpl); |
1796 | if (ret) |
1797 | return ret; |
1798 | |
1799 | memcpy(fwsp, &rpl.u.ctl.stat0, sizeof(__be64) * nstats); |
1800 | |
1801 | rem -= nstats; |
1802 | fwsp += nstats; |
1803 | } |
1804 | |
1805 | /* |
1806 | * Translate firmware statistics into host native statistics. |
1807 | */ |
1808 | s->tx_bcast_bytes = be64_to_cpu(fwstats.tx_bcast_bytes); |
1809 | s->tx_bcast_frames = be64_to_cpu(fwstats.tx_bcast_frames); |
1810 | s->tx_mcast_bytes = be64_to_cpu(fwstats.tx_mcast_bytes); |
1811 | s->tx_mcast_frames = be64_to_cpu(fwstats.tx_mcast_frames); |
1812 | s->tx_ucast_bytes = be64_to_cpu(fwstats.tx_ucast_bytes); |
1813 | s->tx_ucast_frames = be64_to_cpu(fwstats.tx_ucast_frames); |
1814 | s->tx_drop_frames = be64_to_cpu(fwstats.tx_drop_frames); |
1815 | s->tx_offload_bytes = be64_to_cpu(fwstats.tx_offload_bytes); |
1816 | s->tx_offload_frames = be64_to_cpu(fwstats.tx_offload_frames); |
1817 | |
1818 | s->rx_bcast_bytes = be64_to_cpu(fwstats.rx_bcast_bytes); |
1819 | s->rx_bcast_frames = be64_to_cpu(fwstats.rx_bcast_frames); |
1820 | s->rx_mcast_bytes = be64_to_cpu(fwstats.rx_mcast_bytes); |
1821 | s->rx_mcast_frames = be64_to_cpu(fwstats.rx_mcast_frames); |
1822 | s->rx_ucast_bytes = be64_to_cpu(fwstats.rx_ucast_bytes); |
1823 | s->rx_ucast_frames = be64_to_cpu(fwstats.rx_ucast_frames); |
1824 | |
1825 | s->rx_err_frames = be64_to_cpu(fwstats.rx_err_frames); |
1826 | |
1827 | return 0; |
1828 | } |
1829 | |
1830 | /** |
1831 | * t4vf_iq_free - free an ingress queue and its free lists |
1832 | * @adapter: the adapter |
1833 | * @iqtype: the ingress queue type (FW_IQ_TYPE_FL_INT_CAP, etc.) |
1834 | * @iqid: ingress queue ID |
1835 | * @fl0id: FL0 queue ID or 0xffff if no attached FL0 |
1836 | * @fl1id: FL1 queue ID or 0xffff if no attached FL1 |
1837 | * |
1838 | * Frees an ingress queue and its associated free lists, if any. |
1839 | */ |
1840 | int t4vf_iq_free(struct adapter *adapter, unsigned int iqtype, |
1841 | unsigned int iqid, unsigned int fl0id, unsigned int fl1id) |
1842 | { |
1843 | struct fw_iq_cmd cmd; |
1844 | |
1845 | memset(&cmd, 0, sizeof(cmd)); |
1846 | cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_IQ_CMD) | |
1847 | FW_CMD_REQUEST_F | |
1848 | FW_CMD_EXEC_F); |
1849 | cmd.alloc_to_len16 = cpu_to_be32(FW_IQ_CMD_FREE_F | |
1850 | FW_LEN16(cmd)); |
1851 | cmd.type_to_iqandstindex = |
1852 | cpu_to_be32(FW_IQ_CMD_TYPE_V(iqtype)); |
1853 | |
1854 | cmd.iqid = cpu_to_be16(iqid); |
1855 | cmd.fl0id = cpu_to_be16(fl0id); |
1856 | cmd.fl1id = cpu_to_be16(fl1id); |
1857 | return t4vf_wr_mbox(adapter, cmd: &cmd, size: sizeof(cmd), NULL); |
1858 | } |
1859 | |
1860 | /** |
1861 | * t4vf_eth_eq_free - free an Ethernet egress queue |
1862 | * @adapter: the adapter |
1863 | * @eqid: egress queue ID |
1864 | * |
1865 | * Frees an Ethernet egress queue. |
1866 | */ |
1867 | int t4vf_eth_eq_free(struct adapter *adapter, unsigned int eqid) |
1868 | { |
1869 | struct fw_eq_eth_cmd cmd; |
1870 | |
1871 | memset(&cmd, 0, sizeof(cmd)); |
1872 | cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_EQ_ETH_CMD) | |
1873 | FW_CMD_REQUEST_F | |
1874 | FW_CMD_EXEC_F); |
1875 | cmd.alloc_to_len16 = cpu_to_be32(FW_EQ_ETH_CMD_FREE_F | |
1876 | FW_LEN16(cmd)); |
1877 | cmd.eqid_pkd = cpu_to_be32(FW_EQ_ETH_CMD_EQID_V(eqid)); |
1878 | return t4vf_wr_mbox(adapter, cmd: &cmd, size: sizeof(cmd), NULL); |
1879 | } |
1880 | |
1881 | /** |
1882 | * t4vf_link_down_rc_str - return a string for a Link Down Reason Code |
1883 | * @link_down_rc: Link Down Reason Code |
1884 | * |
1885 | * Returns a string representation of the Link Down Reason Code. |
1886 | */ |
1887 | static const char *t4vf_link_down_rc_str(unsigned char link_down_rc) |
1888 | { |
1889 | static const char * const reason[] = { |
1890 | "Link Down" , |
1891 | "Remote Fault" , |
1892 | "Auto-negotiation Failure" , |
1893 | "Reserved" , |
1894 | "Insufficient Airflow" , |
1895 | "Unable To Determine Reason" , |
1896 | "No RX Signal Detected" , |
1897 | "Reserved" , |
1898 | }; |
1899 | |
1900 | if (link_down_rc >= ARRAY_SIZE(reason)) |
1901 | return "Bad Reason Code" ; |
1902 | |
1903 | return reason[link_down_rc]; |
1904 | } |
1905 | |
1906 | /** |
1907 | * t4vf_handle_get_port_info - process a FW reply message |
1908 | * @pi: the port info |
1909 | * @cmd: start of the FW message |
1910 | * |
1911 | * Processes a GET_PORT_INFO FW reply message. |
1912 | */ |
1913 | static void t4vf_handle_get_port_info(struct port_info *pi, |
1914 | const struct fw_port_cmd *cmd) |
1915 | { |
1916 | fw_port_cap32_t pcaps, acaps, lpacaps, linkattr; |
1917 | struct link_config *lc = &pi->link_cfg; |
1918 | struct adapter *adapter = pi->adapter; |
1919 | unsigned int speed, fc, fec, adv_fc; |
1920 | enum fw_port_module_type mod_type; |
1921 | int action, link_ok, linkdnrc; |
1922 | enum fw_port_type port_type; |
1923 | |
1924 | /* Extract the various fields from the Port Information message. */ |
1925 | action = FW_PORT_CMD_ACTION_G(be32_to_cpu(cmd->action_to_len16)); |
1926 | switch (action) { |
1927 | case FW_PORT_ACTION_GET_PORT_INFO: { |
1928 | u32 lstatus = be32_to_cpu(cmd->u.info.lstatus_to_modtype); |
1929 | |
1930 | link_ok = (lstatus & FW_PORT_CMD_LSTATUS_F) != 0; |
1931 | linkdnrc = FW_PORT_CMD_LINKDNRC_G(lstatus); |
1932 | port_type = FW_PORT_CMD_PTYPE_G(lstatus); |
1933 | mod_type = FW_PORT_CMD_MODTYPE_G(lstatus); |
1934 | pcaps = fwcaps16_to_caps32(be16_to_cpu(cmd->u.info.pcap)); |
1935 | acaps = fwcaps16_to_caps32(be16_to_cpu(cmd->u.info.acap)); |
1936 | lpacaps = fwcaps16_to_caps32(be16_to_cpu(cmd->u.info.lpacap)); |
1937 | |
1938 | /* Unfortunately the format of the Link Status in the old |
1939 | * 16-bit Port Information message isn't the same as the |
1940 | * 16-bit Port Capabilities bitfield used everywhere else ... |
1941 | */ |
1942 | linkattr = 0; |
1943 | if (lstatus & FW_PORT_CMD_RXPAUSE_F) |
1944 | linkattr |= FW_PORT_CAP32_FC_RX; |
1945 | if (lstatus & FW_PORT_CMD_TXPAUSE_F) |
1946 | linkattr |= FW_PORT_CAP32_FC_TX; |
1947 | if (lstatus & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_100M)) |
1948 | linkattr |= FW_PORT_CAP32_SPEED_100M; |
1949 | if (lstatus & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_1G)) |
1950 | linkattr |= FW_PORT_CAP32_SPEED_1G; |
1951 | if (lstatus & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_10G)) |
1952 | linkattr |= FW_PORT_CAP32_SPEED_10G; |
1953 | if (lstatus & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_25G)) |
1954 | linkattr |= FW_PORT_CAP32_SPEED_25G; |
1955 | if (lstatus & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_40G)) |
1956 | linkattr |= FW_PORT_CAP32_SPEED_40G; |
1957 | if (lstatus & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_100G)) |
1958 | linkattr |= FW_PORT_CAP32_SPEED_100G; |
1959 | |
1960 | break; |
1961 | } |
1962 | |
1963 | case FW_PORT_ACTION_GET_PORT_INFO32: { |
1964 | u32 lstatus32; |
1965 | |
1966 | lstatus32 = be32_to_cpu(cmd->u.info32.lstatus32_to_cbllen32); |
1967 | link_ok = (lstatus32 & FW_PORT_CMD_LSTATUS32_F) != 0; |
1968 | linkdnrc = FW_PORT_CMD_LINKDNRC32_G(lstatus32); |
1969 | port_type = FW_PORT_CMD_PORTTYPE32_G(lstatus32); |
1970 | mod_type = FW_PORT_CMD_MODTYPE32_G(lstatus32); |
1971 | pcaps = be32_to_cpu(cmd->u.info32.pcaps32); |
1972 | acaps = be32_to_cpu(cmd->u.info32.acaps32); |
1973 | lpacaps = be32_to_cpu(cmd->u.info32.lpacaps32); |
1974 | linkattr = be32_to_cpu(cmd->u.info32.linkattr32); |
1975 | break; |
1976 | } |
1977 | |
1978 | default: |
1979 | dev_err(adapter->pdev_dev, "Handle Port Information: Bad Command/Action %#x\n" , |
1980 | be32_to_cpu(cmd->action_to_len16)); |
1981 | return; |
1982 | } |
1983 | |
1984 | fec = fwcap_to_cc_fec(fw_fec: acaps); |
1985 | adv_fc = fwcap_to_cc_pause(fw_pause: acaps); |
1986 | fc = fwcap_to_cc_pause(fw_pause: linkattr); |
1987 | speed = fwcap_to_speed(caps: linkattr); |
1988 | |
1989 | if (mod_type != pi->mod_type) { |
1990 | /* When a new Transceiver Module is inserted, the Firmware |
1991 | * will examine any Forward Error Correction parameters |
1992 | * present in the Transceiver Module i2c EPROM and determine |
1993 | * the supported and recommended FEC settings from those |
1994 | * based on IEEE 802.3 standards. We always record the |
1995 | * IEEE 802.3 recommended "automatic" settings. |
1996 | */ |
1997 | lc->auto_fec = fec; |
1998 | |
1999 | /* Some versions of the early T6 Firmware "cheated" when |
2000 | * handling different Transceiver Modules by changing the |
2001 | * underlaying Port Type reported to the Host Drivers. As |
2002 | * such we need to capture whatever Port Type the Firmware |
2003 | * sends us and record it in case it's different from what we |
2004 | * were told earlier. Unfortunately, since Firmware is |
2005 | * forever, we'll need to keep this code here forever, but in |
2006 | * later T6 Firmware it should just be an assignment of the |
2007 | * same value already recorded. |
2008 | */ |
2009 | pi->port_type = port_type; |
2010 | |
2011 | pi->mod_type = mod_type; |
2012 | t4vf_os_portmod_changed(adapter, pi->pidx); |
2013 | } |
2014 | |
2015 | if (link_ok != lc->link_ok || speed != lc->speed || |
2016 | fc != lc->fc || adv_fc != lc->advertised_fc || |
2017 | fec != lc->fec) { |
2018 | /* something changed */ |
2019 | if (!link_ok && lc->link_ok) { |
2020 | lc->link_down_rc = linkdnrc; |
2021 | dev_warn_ratelimited(adapter->pdev_dev, |
2022 | "Port %d link down, reason: %s\n" , |
2023 | pi->port_id, |
2024 | t4vf_link_down_rc_str(linkdnrc)); |
2025 | } |
2026 | lc->link_ok = link_ok; |
2027 | lc->speed = speed; |
2028 | lc->advertised_fc = adv_fc; |
2029 | lc->fc = fc; |
2030 | lc->fec = fec; |
2031 | |
2032 | lc->pcaps = pcaps; |
2033 | lc->lpacaps = lpacaps; |
2034 | lc->acaps = acaps & ADVERT_MASK; |
2035 | |
2036 | /* If we're not physically capable of Auto-Negotiation, note |
2037 | * this as Auto-Negotiation disabled. Otherwise, we track |
2038 | * what Auto-Negotiation settings we have. Note parallel |
2039 | * structure in init_link_config(). |
2040 | */ |
2041 | if (!(lc->pcaps & FW_PORT_CAP32_ANEG)) { |
2042 | lc->autoneg = AUTONEG_DISABLE; |
2043 | } else if (lc->acaps & FW_PORT_CAP32_ANEG) { |
2044 | lc->autoneg = AUTONEG_ENABLE; |
2045 | } else { |
2046 | /* When Autoneg is disabled, user needs to set |
2047 | * single speed. |
2048 | * Similar to cxgb4_ethtool.c: set_link_ksettings |
2049 | */ |
2050 | lc->acaps = 0; |
2051 | lc->speed_caps = fwcap_to_speed(caps: acaps); |
2052 | lc->autoneg = AUTONEG_DISABLE; |
2053 | } |
2054 | |
2055 | t4vf_os_link_changed(adapter, pi->pidx, link_ok); |
2056 | } |
2057 | } |
2058 | |
2059 | /** |
2060 | * t4vf_update_port_info - retrieve and update port information if changed |
2061 | * @pi: the port_info |
2062 | * |
2063 | * We issue a Get Port Information Command to the Firmware and, if |
2064 | * successful, we check to see if anything is different from what we |
2065 | * last recorded and update things accordingly. |
2066 | */ |
2067 | int t4vf_update_port_info(struct port_info *pi) |
2068 | { |
2069 | unsigned int fw_caps = pi->adapter->params.fw_caps_support; |
2070 | struct fw_port_cmd port_cmd; |
2071 | int ret; |
2072 | |
2073 | memset(&port_cmd, 0, sizeof(port_cmd)); |
2074 | port_cmd.op_to_portid = cpu_to_be32(FW_CMD_OP_V(FW_PORT_CMD) | |
2075 | FW_CMD_REQUEST_F | FW_CMD_READ_F | |
2076 | FW_PORT_CMD_PORTID_V(pi->port_id)); |
2077 | port_cmd.action_to_len16 = cpu_to_be32( |
2078 | FW_PORT_CMD_ACTION_V(fw_caps == FW_CAPS16 |
2079 | ? FW_PORT_ACTION_GET_PORT_INFO |
2080 | : FW_PORT_ACTION_GET_PORT_INFO32) | |
2081 | FW_LEN16(port_cmd)); |
2082 | ret = t4vf_wr_mbox(adapter: pi->adapter, cmd: &port_cmd, size: sizeof(port_cmd), |
2083 | rpl: &port_cmd); |
2084 | if (ret) |
2085 | return ret; |
2086 | t4vf_handle_get_port_info(pi, cmd: &port_cmd); |
2087 | return 0; |
2088 | } |
2089 | |
2090 | /** |
2091 | * t4vf_handle_fw_rpl - process a firmware reply message |
2092 | * @adapter: the adapter |
2093 | * @rpl: start of the firmware message |
2094 | * |
2095 | * Processes a firmware message, such as link state change messages. |
2096 | */ |
2097 | int t4vf_handle_fw_rpl(struct adapter *adapter, const __be64 *rpl) |
2098 | { |
2099 | const struct fw_cmd_hdr *cmd_hdr = (const struct fw_cmd_hdr *)rpl; |
2100 | u8 opcode = FW_CMD_OP_G(be32_to_cpu(cmd_hdr->hi)); |
2101 | |
2102 | switch (opcode) { |
2103 | case FW_PORT_CMD: { |
2104 | /* |
2105 | * Link/module state change message. |
2106 | */ |
2107 | const struct fw_port_cmd *port_cmd = |
2108 | (const struct fw_port_cmd *)rpl; |
2109 | int action = FW_PORT_CMD_ACTION_G( |
2110 | be32_to_cpu(port_cmd->action_to_len16)); |
2111 | int port_id, pidx; |
2112 | |
2113 | if (action != FW_PORT_ACTION_GET_PORT_INFO && |
2114 | action != FW_PORT_ACTION_GET_PORT_INFO32) { |
2115 | dev_err(adapter->pdev_dev, |
2116 | "Unknown firmware PORT reply action %x\n" , |
2117 | action); |
2118 | break; |
2119 | } |
2120 | |
2121 | port_id = FW_PORT_CMD_PORTID_G( |
2122 | be32_to_cpu(port_cmd->op_to_portid)); |
2123 | for_each_port(adapter, pidx) { |
2124 | struct port_info *pi = adap2pinfo(adapter, pidx); |
2125 | |
2126 | if (pi->port_id != port_id) |
2127 | continue; |
2128 | t4vf_handle_get_port_info(pi, cmd: port_cmd); |
2129 | } |
2130 | break; |
2131 | } |
2132 | |
2133 | default: |
2134 | dev_err(adapter->pdev_dev, "Unknown firmware reply %X\n" , |
2135 | opcode); |
2136 | } |
2137 | return 0; |
2138 | } |
2139 | |
2140 | int t4vf_prep_adapter(struct adapter *adapter) |
2141 | { |
2142 | int err; |
2143 | unsigned int chipid; |
2144 | |
2145 | /* Wait for the device to become ready before proceeding ... |
2146 | */ |
2147 | err = t4vf_wait_dev_ready(adapter); |
2148 | if (err) |
2149 | return err; |
2150 | |
2151 | /* Default port and clock for debugging in case we can't reach |
2152 | * firmware. |
2153 | */ |
2154 | adapter->params.nports = 1; |
2155 | adapter->params.vfres.pmask = 1; |
2156 | adapter->params.vpd.cclk = 50000; |
2157 | |
2158 | adapter->params.chip = 0; |
2159 | switch (CHELSIO_PCI_ID_VER(adapter->pdev->device)) { |
2160 | case CHELSIO_T4: |
2161 | adapter->params.chip |= CHELSIO_CHIP_CODE(CHELSIO_T4, 0); |
2162 | adapter->params.arch.sge_fl_db = DBPRIO_F; |
2163 | adapter->params.arch.mps_tcam_size = |
2164 | NUM_MPS_CLS_SRAM_L_INSTANCES; |
2165 | break; |
2166 | |
2167 | case CHELSIO_T5: |
2168 | chipid = REV_G(t4_read_reg(adapter, PL_VF_REV_A)); |
2169 | adapter->params.chip |= CHELSIO_CHIP_CODE(CHELSIO_T5, chipid); |
2170 | adapter->params.arch.sge_fl_db = DBPRIO_F | DBTYPE_F; |
2171 | adapter->params.arch.mps_tcam_size = |
2172 | NUM_MPS_T5_CLS_SRAM_L_INSTANCES; |
2173 | break; |
2174 | |
2175 | case CHELSIO_T6: |
2176 | chipid = REV_G(t4_read_reg(adapter, PL_VF_REV_A)); |
2177 | adapter->params.chip |= CHELSIO_CHIP_CODE(CHELSIO_T6, chipid); |
2178 | adapter->params.arch.sge_fl_db = 0; |
2179 | adapter->params.arch.mps_tcam_size = |
2180 | NUM_MPS_T5_CLS_SRAM_L_INSTANCES; |
2181 | break; |
2182 | } |
2183 | |
2184 | return 0; |
2185 | } |
2186 | |
2187 | /** |
2188 | * t4vf_get_vf_mac_acl - Get the MAC address to be set to |
2189 | * the VI of this VF. |
2190 | * @adapter: The adapter |
2191 | * @port: The port associated with vf |
2192 | * @naddr: the number of ACL MAC addresses returned in addr |
2193 | * @addr: Placeholder for MAC addresses |
2194 | * |
2195 | * Find the MAC address to be set to the VF's VI. The requested MAC address |
2196 | * is from the host OS via callback in the PF driver. |
2197 | */ |
2198 | int t4vf_get_vf_mac_acl(struct adapter *adapter, unsigned int port, |
2199 | unsigned int *naddr, u8 *addr) |
2200 | { |
2201 | struct fw_acl_mac_cmd cmd; |
2202 | int ret; |
2203 | |
2204 | memset(&cmd, 0, sizeof(cmd)); |
2205 | cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_ACL_MAC_CMD) | |
2206 | FW_CMD_REQUEST_F | |
2207 | FW_CMD_READ_F); |
2208 | cmd.en_to_len16 = cpu_to_be32((unsigned int)FW_LEN16(cmd)); |
2209 | ret = t4vf_wr_mbox(adapter, cmd: &cmd, size: sizeof(cmd), rpl: &cmd); |
2210 | if (ret) |
2211 | return ret; |
2212 | |
2213 | if (cmd.nmac < *naddr) |
2214 | *naddr = cmd.nmac; |
2215 | |
2216 | switch (port) { |
2217 | case 3: |
2218 | memcpy(addr, cmd.macaddr3, sizeof(cmd.macaddr3)); |
2219 | break; |
2220 | case 2: |
2221 | memcpy(addr, cmd.macaddr2, sizeof(cmd.macaddr2)); |
2222 | break; |
2223 | case 1: |
2224 | memcpy(addr, cmd.macaddr1, sizeof(cmd.macaddr1)); |
2225 | break; |
2226 | case 0: |
2227 | memcpy(addr, cmd.macaddr0, sizeof(cmd.macaddr0)); |
2228 | break; |
2229 | } |
2230 | |
2231 | return ret; |
2232 | } |
2233 | |
2234 | /** |
2235 | * t4vf_get_vf_vlan_acl - Get the VLAN ID to be set to |
2236 | * the VI of this VF. |
2237 | * @adapter: The adapter |
2238 | * |
2239 | * Find the VLAN ID to be set to the VF's VI. The requested VLAN ID |
2240 | * is from the host OS via callback in the PF driver. |
2241 | */ |
2242 | int t4vf_get_vf_vlan_acl(struct adapter *adapter) |
2243 | { |
2244 | struct fw_acl_vlan_cmd cmd; |
2245 | int vlan = 0; |
2246 | int ret = 0; |
2247 | |
2248 | cmd.op_to_vfn = htonl(FW_CMD_OP_V(FW_ACL_VLAN_CMD) | |
2249 | FW_CMD_REQUEST_F | FW_CMD_READ_F); |
2250 | |
2251 | /* Note: Do not enable the ACL */ |
2252 | cmd.en_to_len16 = cpu_to_be32((unsigned int)FW_LEN16(cmd)); |
2253 | |
2254 | ret = t4vf_wr_mbox(adapter, cmd: &cmd, size: sizeof(cmd), rpl: &cmd); |
2255 | |
2256 | if (!ret) |
2257 | vlan = be16_to_cpu(cmd.vlanid[0]); |
2258 | |
2259 | return vlan; |
2260 | } |
2261 | |