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16f8bd4b CL |
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/version.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/t4fw_api.h" | |
44 | ||
45 | /* | |
46 | * Wait for the device to become ready (signified by our "who am I" register | |
47 | * returning a value other than all 1's). Return an error if it doesn't | |
48 | * become ready ... | |
49 | */ | |
50 | int __devinit t4vf_wait_dev_ready(struct adapter *adapter) | |
51 | { | |
52 | const u32 whoami = T4VF_PL_BASE_ADDR + PL_VF_WHOAMI; | |
53 | const u32 notready1 = 0xffffffff; | |
54 | const u32 notready2 = 0xeeeeeeee; | |
55 | u32 val; | |
56 | ||
57 | val = t4_read_reg(adapter, whoami); | |
58 | if (val != notready1 && val != notready2) | |
59 | return 0; | |
60 | msleep(500); | |
61 | val = t4_read_reg(adapter, whoami); | |
62 | if (val != notready1 && val != notready2) | |
63 | return 0; | |
64 | else | |
65 | return -EIO; | |
66 | } | |
67 | ||
68 | /* | |
69 | * Get the reply to a mailbox command and store it in @rpl in big-endian order | |
70 | * (since the firmware data structures are specified in a big-endian layout). | |
71 | */ | |
72 | static void get_mbox_rpl(struct adapter *adapter, __be64 *rpl, int size, | |
73 | u32 mbox_data) | |
74 | { | |
75 | for ( ; size; size -= 8, mbox_data += 8) | |
76 | *rpl++ = cpu_to_be64(t4_read_reg64(adapter, mbox_data)); | |
77 | } | |
78 | ||
79 | /* | |
80 | * Dump contents of mailbox with a leading tag. | |
81 | */ | |
82 | static void dump_mbox(struct adapter *adapter, const char *tag, u32 mbox_data) | |
83 | { | |
84 | dev_err(adapter->pdev_dev, | |
85 | "mbox %s: %llx %llx %llx %llx %llx %llx %llx %llx\n", tag, | |
86 | (unsigned long long)t4_read_reg64(adapter, mbox_data + 0), | |
87 | (unsigned long long)t4_read_reg64(adapter, mbox_data + 8), | |
88 | (unsigned long long)t4_read_reg64(adapter, mbox_data + 16), | |
89 | (unsigned long long)t4_read_reg64(adapter, mbox_data + 24), | |
90 | (unsigned long long)t4_read_reg64(adapter, mbox_data + 32), | |
91 | (unsigned long long)t4_read_reg64(adapter, mbox_data + 40), | |
92 | (unsigned long long)t4_read_reg64(adapter, mbox_data + 48), | |
93 | (unsigned long long)t4_read_reg64(adapter, mbox_data + 56)); | |
94 | } | |
95 | ||
96 | /** | |
97 | * t4vf_wr_mbox_core - send a command to FW through the mailbox | |
98 | * @adapter: the adapter | |
99 | * @cmd: the command to write | |
100 | * @size: command length in bytes | |
101 | * @rpl: where to optionally store the reply | |
102 | * @sleep_ok: if true we may sleep while awaiting command completion | |
103 | * | |
104 | * Sends the given command to FW through the mailbox and waits for the | |
105 | * FW to execute the command. If @rpl is not %NULL it is used to store | |
106 | * the FW's reply to the command. The command and its optional reply | |
107 | * are of the same length. FW can take up to 500 ms to respond. | |
108 | * @sleep_ok determines whether we may sleep while awaiting the response. | |
109 | * If sleeping is allowed we use progressive backoff otherwise we spin. | |
110 | * | |
111 | * The return value is 0 on success or a negative errno on failure. A | |
112 | * failure can happen either because we are not able to execute the | |
113 | * command or FW executes it but signals an error. In the latter case | |
114 | * the return value is the error code indicated by FW (negated). | |
115 | */ | |
116 | int t4vf_wr_mbox_core(struct adapter *adapter, const void *cmd, int size, | |
117 | void *rpl, bool sleep_ok) | |
118 | { | |
215faf9c | 119 | static const int delay[] = { |
16f8bd4b CL |
120 | 1, 1, 3, 5, 10, 10, 20, 50, 100 |
121 | }; | |
122 | ||
123 | u32 v; | |
124 | int i, ms, delay_idx; | |
125 | const __be64 *p; | |
126 | u32 mbox_data = T4VF_MBDATA_BASE_ADDR; | |
127 | u32 mbox_ctl = T4VF_CIM_BASE_ADDR + CIM_VF_EXT_MAILBOX_CTRL; | |
128 | ||
129 | /* | |
130 | * Commands must be multiples of 16 bytes in length and may not be | |
131 | * larger than the size of the Mailbox Data register array. | |
132 | */ | |
133 | if ((size % 16) != 0 || | |
134 | size > NUM_CIM_VF_MAILBOX_DATA_INSTANCES * 4) | |
135 | return -EINVAL; | |
136 | ||
137 | /* | |
138 | * Loop trying to get ownership of the mailbox. Return an error | |
139 | * if we can't gain ownership. | |
140 | */ | |
141 | v = MBOWNER_GET(t4_read_reg(adapter, mbox_ctl)); | |
142 | for (i = 0; v == MBOX_OWNER_NONE && i < 3; i++) | |
143 | v = MBOWNER_GET(t4_read_reg(adapter, mbox_ctl)); | |
144 | if (v != MBOX_OWNER_DRV) | |
145 | return v == MBOX_OWNER_FW ? -EBUSY : -ETIMEDOUT; | |
146 | ||
147 | /* | |
148 | * Write the command array into the Mailbox Data register array and | |
149 | * transfer ownership of the mailbox to the firmware. | |
80ce3f67 CL |
150 | * |
151 | * For the VFs, the Mailbox Data "registers" are actually backed by | |
152 | * T4's "MA" interface rather than PL Registers (as is the case for | |
153 | * the PFs). Because these are in different coherency domains, the | |
154 | * write to the VF's PL-register-backed Mailbox Control can race in | |
155 | * front of the writes to the MA-backed VF Mailbox Data "registers". | |
156 | * So we need to do a read-back on at least one byte of the VF Mailbox | |
157 | * Data registers before doing the write to the VF Mailbox Control | |
158 | * register. | |
16f8bd4b CL |
159 | */ |
160 | for (i = 0, p = cmd; i < size; i += 8) | |
161 | t4_write_reg64(adapter, mbox_data + i, be64_to_cpu(*p++)); | |
80ce3f67 CL |
162 | t4_read_reg(adapter, mbox_data); /* flush write */ |
163 | ||
16f8bd4b CL |
164 | t4_write_reg(adapter, mbox_ctl, |
165 | MBMSGVALID | MBOWNER(MBOX_OWNER_FW)); | |
166 | t4_read_reg(adapter, mbox_ctl); /* flush write */ | |
167 | ||
168 | /* | |
169 | * Spin waiting for firmware to acknowledge processing our command. | |
170 | */ | |
171 | delay_idx = 0; | |
172 | ms = delay[0]; | |
173 | ||
174 | for (i = 0; i < 500; i += ms) { | |
175 | if (sleep_ok) { | |
176 | ms = delay[delay_idx]; | |
024e6293 | 177 | if (delay_idx < ARRAY_SIZE(delay) - 1) |
16f8bd4b CL |
178 | delay_idx++; |
179 | msleep(ms); | |
180 | } else | |
181 | mdelay(ms); | |
182 | ||
183 | /* | |
184 | * If we're the owner, see if this is the reply we wanted. | |
185 | */ | |
186 | v = t4_read_reg(adapter, mbox_ctl); | |
187 | if (MBOWNER_GET(v) == MBOX_OWNER_DRV) { | |
188 | /* | |
189 | * If the Message Valid bit isn't on, revoke ownership | |
190 | * of the mailbox and continue waiting for our reply. | |
191 | */ | |
192 | if ((v & MBMSGVALID) == 0) { | |
193 | t4_write_reg(adapter, mbox_ctl, | |
194 | MBOWNER(MBOX_OWNER_NONE)); | |
195 | continue; | |
196 | } | |
197 | ||
198 | /* | |
199 | * We now have our reply. Extract the command return | |
200 | * value, copy the reply back to our caller's buffer | |
201 | * (if specified) and revoke ownership of the mailbox. | |
202 | * We return the (negated) firmware command return | |
203 | * code (this depends on FW_SUCCESS == 0). | |
204 | */ | |
205 | ||
206 | /* return value in low-order little-endian word */ | |
207 | v = t4_read_reg(adapter, mbox_data); | |
208 | if (FW_CMD_RETVAL_GET(v)) | |
209 | dump_mbox(adapter, "FW Error", mbox_data); | |
210 | ||
211 | if (rpl) { | |
212 | /* request bit in high-order BE word */ | |
213 | WARN_ON((be32_to_cpu(*(const u32 *)cmd) | |
214 | & FW_CMD_REQUEST) == 0); | |
215 | get_mbox_rpl(adapter, rpl, size, mbox_data); | |
216 | WARN_ON((be32_to_cpu(*(u32 *)rpl) | |
217 | & FW_CMD_REQUEST) != 0); | |
218 | } | |
219 | t4_write_reg(adapter, mbox_ctl, | |
220 | MBOWNER(MBOX_OWNER_NONE)); | |
221 | return -FW_CMD_RETVAL_GET(v); | |
222 | } | |
223 | } | |
224 | ||
225 | /* | |
226 | * We timed out. Return the error ... | |
227 | */ | |
228 | dump_mbox(adapter, "FW Timeout", mbox_data); | |
229 | return -ETIMEDOUT; | |
230 | } | |
231 | ||
232 | /** | |
233 | * hash_mac_addr - return the hash value of a MAC address | |
234 | * @addr: the 48-bit Ethernet MAC address | |
235 | * | |
236 | * Hashes a MAC address according to the hash function used by hardware | |
237 | * inexact (hash) address matching. | |
238 | */ | |
239 | static int hash_mac_addr(const u8 *addr) | |
240 | { | |
241 | u32 a = ((u32)addr[0] << 16) | ((u32)addr[1] << 8) | addr[2]; | |
242 | u32 b = ((u32)addr[3] << 16) | ((u32)addr[4] << 8) | addr[5]; | |
243 | a ^= b; | |
244 | a ^= (a >> 12); | |
245 | a ^= (a >> 6); | |
246 | return a & 0x3f; | |
247 | } | |
248 | ||
249 | /** | |
250 | * init_link_config - initialize a link's SW state | |
251 | * @lc: structure holding the link state | |
252 | * @caps: link capabilities | |
253 | * | |
254 | * Initializes the SW state maintained for each link, including the link's | |
255 | * capabilities and default speed/flow-control/autonegotiation settings. | |
256 | */ | |
257 | static void __devinit init_link_config(struct link_config *lc, | |
258 | unsigned int caps) | |
259 | { | |
260 | lc->supported = caps; | |
261 | lc->requested_speed = 0; | |
262 | lc->speed = 0; | |
263 | lc->requested_fc = lc->fc = PAUSE_RX | PAUSE_TX; | |
264 | if (lc->supported & SUPPORTED_Autoneg) { | |
265 | lc->advertising = lc->supported; | |
266 | lc->autoneg = AUTONEG_ENABLE; | |
267 | lc->requested_fc |= PAUSE_AUTONEG; | |
268 | } else { | |
269 | lc->advertising = 0; | |
270 | lc->autoneg = AUTONEG_DISABLE; | |
271 | } | |
272 | } | |
273 | ||
274 | /** | |
275 | * t4vf_port_init - initialize port hardware/software state | |
276 | * @adapter: the adapter | |
277 | * @pidx: the adapter port index | |
278 | */ | |
279 | int __devinit t4vf_port_init(struct adapter *adapter, int pidx) | |
280 | { | |
281 | struct port_info *pi = adap2pinfo(adapter, pidx); | |
282 | struct fw_vi_cmd vi_cmd, vi_rpl; | |
283 | struct fw_port_cmd port_cmd, port_rpl; | |
284 | int v; | |
285 | u32 word; | |
286 | ||
287 | /* | |
288 | * Execute a VI Read command to get our Virtual Interface information | |
289 | * like MAC address, etc. | |
290 | */ | |
291 | memset(&vi_cmd, 0, sizeof(vi_cmd)); | |
292 | vi_cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_VI_CMD) | | |
293 | FW_CMD_REQUEST | | |
294 | FW_CMD_READ); | |
295 | vi_cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(vi_cmd)); | |
296 | vi_cmd.type_viid = cpu_to_be16(FW_VI_CMD_VIID(pi->viid)); | |
297 | v = t4vf_wr_mbox(adapter, &vi_cmd, sizeof(vi_cmd), &vi_rpl); | |
298 | if (v) | |
299 | return v; | |
300 | ||
301 | BUG_ON(pi->port_id != FW_VI_CMD_PORTID_GET(vi_rpl.portid_pkd)); | |
302 | pi->rss_size = FW_VI_CMD_RSSSIZE_GET(be16_to_cpu(vi_rpl.rsssize_pkd)); | |
303 | t4_os_set_hw_addr(adapter, pidx, vi_rpl.mac); | |
304 | ||
305 | /* | |
306 | * If we don't have read access to our port information, we're done | |
307 | * now. Otherwise, execute a PORT Read command to get it ... | |
308 | */ | |
309 | if (!(adapter->params.vfres.r_caps & FW_CMD_CAP_PORT)) | |
310 | return 0; | |
311 | ||
312 | memset(&port_cmd, 0, sizeof(port_cmd)); | |
313 | port_cmd.op_to_portid = cpu_to_be32(FW_CMD_OP(FW_PORT_CMD) | | |
314 | FW_CMD_REQUEST | | |
315 | FW_CMD_READ | | |
316 | FW_PORT_CMD_PORTID(pi->port_id)); | |
317 | port_cmd.action_to_len16 = | |
318 | cpu_to_be32(FW_PORT_CMD_ACTION(FW_PORT_ACTION_GET_PORT_INFO) | | |
319 | FW_LEN16(port_cmd)); | |
320 | v = t4vf_wr_mbox(adapter, &port_cmd, sizeof(port_cmd), &port_rpl); | |
321 | if (v) | |
322 | return v; | |
323 | ||
324 | v = 0; | |
325 | word = be16_to_cpu(port_rpl.u.info.pcap); | |
326 | if (word & FW_PORT_CAP_SPEED_100M) | |
327 | v |= SUPPORTED_100baseT_Full; | |
328 | if (word & FW_PORT_CAP_SPEED_1G) | |
329 | v |= SUPPORTED_1000baseT_Full; | |
330 | if (word & FW_PORT_CAP_SPEED_10G) | |
331 | v |= SUPPORTED_10000baseT_Full; | |
332 | if (word & FW_PORT_CAP_ANEG) | |
333 | v |= SUPPORTED_Autoneg; | |
334 | init_link_config(&pi->link_cfg, v); | |
335 | ||
336 | return 0; | |
337 | } | |
338 | ||
e68e6133 CL |
339 | /** |
340 | * t4vf_fw_reset - issue a reset to FW | |
341 | * @adapter: the adapter | |
342 | * | |
343 | * Issues a reset command to FW. For a Physical Function this would | |
344 | * result in the Firmware reseting all of its state. For a Virtual | |
345 | * Function this just resets the state associated with the VF. | |
346 | */ | |
347 | int t4vf_fw_reset(struct adapter *adapter) | |
348 | { | |
349 | struct fw_reset_cmd cmd; | |
350 | ||
351 | memset(&cmd, 0, sizeof(cmd)); | |
352 | cmd.op_to_write = cpu_to_be32(FW_CMD_OP(FW_RESET_CMD) | | |
353 | FW_CMD_WRITE); | |
354 | cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd)); | |
355 | return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL); | |
356 | } | |
357 | ||
16f8bd4b CL |
358 | /** |
359 | * t4vf_query_params - query FW or device parameters | |
360 | * @adapter: the adapter | |
361 | * @nparams: the number of parameters | |
362 | * @params: the parameter names | |
363 | * @vals: the parameter values | |
364 | * | |
365 | * Reads the values of firmware or device parameters. Up to 7 parameters | |
366 | * can be queried at once. | |
367 | */ | |
368 | int t4vf_query_params(struct adapter *adapter, unsigned int nparams, | |
369 | const u32 *params, u32 *vals) | |
370 | { | |
371 | int i, ret; | |
372 | struct fw_params_cmd cmd, rpl; | |
373 | struct fw_params_param *p; | |
374 | size_t len16; | |
375 | ||
376 | if (nparams > 7) | |
377 | return -EINVAL; | |
378 | ||
379 | memset(&cmd, 0, sizeof(cmd)); | |
380 | cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_PARAMS_CMD) | | |
381 | FW_CMD_REQUEST | | |
382 | FW_CMD_READ); | |
383 | len16 = DIV_ROUND_UP(offsetof(struct fw_params_cmd, | |
384 | param[nparams].mnem), 16); | |
385 | cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16(len16)); | |
386 | for (i = 0, p = &cmd.param[0]; i < nparams; i++, p++) | |
387 | p->mnem = htonl(*params++); | |
388 | ||
389 | ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl); | |
390 | if (ret == 0) | |
391 | for (i = 0, p = &rpl.param[0]; i < nparams; i++, p++) | |
392 | *vals++ = be32_to_cpu(p->val); | |
393 | return ret; | |
394 | } | |
395 | ||
396 | /** | |
397 | * t4vf_set_params - sets FW or device parameters | |
398 | * @adapter: the adapter | |
399 | * @nparams: the number of parameters | |
400 | * @params: the parameter names | |
401 | * @vals: the parameter values | |
402 | * | |
403 | * Sets the values of firmware or device parameters. Up to 7 parameters | |
404 | * can be specified at once. | |
405 | */ | |
406 | int t4vf_set_params(struct adapter *adapter, unsigned int nparams, | |
407 | const u32 *params, const u32 *vals) | |
408 | { | |
409 | int i; | |
410 | struct fw_params_cmd cmd; | |
411 | struct fw_params_param *p; | |
412 | size_t len16; | |
413 | ||
414 | if (nparams > 7) | |
415 | return -EINVAL; | |
416 | ||
417 | memset(&cmd, 0, sizeof(cmd)); | |
418 | cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_PARAMS_CMD) | | |
419 | FW_CMD_REQUEST | | |
420 | FW_CMD_WRITE); | |
421 | len16 = DIV_ROUND_UP(offsetof(struct fw_params_cmd, | |
422 | param[nparams]), 16); | |
423 | cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16(len16)); | |
424 | for (i = 0, p = &cmd.param[0]; i < nparams; i++, p++) { | |
425 | p->mnem = cpu_to_be32(*params++); | |
426 | p->val = cpu_to_be32(*vals++); | |
427 | } | |
428 | ||
429 | return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL); | |
430 | } | |
431 | ||
432 | /** | |
433 | * t4vf_get_sge_params - retrieve adapter Scatter gather Engine parameters | |
434 | * @adapter: the adapter | |
435 | * | |
436 | * Retrieves various core SGE parameters in the form of hardware SGE | |
437 | * register values. The caller is responsible for decoding these as | |
438 | * needed. The SGE parameters are stored in @adapter->params.sge. | |
439 | */ | |
440 | int t4vf_get_sge_params(struct adapter *adapter) | |
441 | { | |
442 | struct sge_params *sge_params = &adapter->params.sge; | |
443 | u32 params[7], vals[7]; | |
444 | int v; | |
445 | ||
446 | params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) | | |
447 | FW_PARAMS_PARAM_XYZ(SGE_CONTROL)); | |
448 | params[1] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) | | |
449 | FW_PARAMS_PARAM_XYZ(SGE_HOST_PAGE_SIZE)); | |
450 | params[2] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) | | |
451 | FW_PARAMS_PARAM_XYZ(SGE_FL_BUFFER_SIZE0)); | |
452 | params[3] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) | | |
453 | FW_PARAMS_PARAM_XYZ(SGE_FL_BUFFER_SIZE1)); | |
454 | params[4] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) | | |
455 | FW_PARAMS_PARAM_XYZ(SGE_TIMER_VALUE_0_AND_1)); | |
456 | params[5] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) | | |
457 | FW_PARAMS_PARAM_XYZ(SGE_TIMER_VALUE_2_AND_3)); | |
458 | params[6] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) | | |
459 | FW_PARAMS_PARAM_XYZ(SGE_TIMER_VALUE_4_AND_5)); | |
460 | v = t4vf_query_params(adapter, 7, params, vals); | |
461 | if (v) | |
462 | return v; | |
463 | sge_params->sge_control = vals[0]; | |
464 | sge_params->sge_host_page_size = vals[1]; | |
465 | sge_params->sge_fl_buffer_size[0] = vals[2]; | |
466 | sge_params->sge_fl_buffer_size[1] = vals[3]; | |
467 | sge_params->sge_timer_value_0_and_1 = vals[4]; | |
468 | sge_params->sge_timer_value_2_and_3 = vals[5]; | |
469 | sge_params->sge_timer_value_4_and_5 = vals[6]; | |
470 | ||
471 | params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) | | |
472 | FW_PARAMS_PARAM_XYZ(SGE_INGRESS_RX_THRESHOLD)); | |
473 | v = t4vf_query_params(adapter, 1, params, vals); | |
474 | if (v) | |
475 | return v; | |
476 | sge_params->sge_ingress_rx_threshold = vals[0]; | |
477 | ||
478 | return 0; | |
479 | } | |
480 | ||
481 | /** | |
482 | * t4vf_get_vpd_params - retrieve device VPD paremeters | |
483 | * @adapter: the adapter | |
484 | * | |
485 | * Retrives various device Vital Product Data parameters. The parameters | |
486 | * are stored in @adapter->params.vpd. | |
487 | */ | |
488 | int t4vf_get_vpd_params(struct adapter *adapter) | |
489 | { | |
490 | struct vpd_params *vpd_params = &adapter->params.vpd; | |
491 | u32 params[7], vals[7]; | |
492 | int v; | |
493 | ||
494 | params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | | |
495 | FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_CCLK)); | |
496 | v = t4vf_query_params(adapter, 1, params, vals); | |
497 | if (v) | |
498 | return v; | |
499 | vpd_params->cclk = vals[0]; | |
500 | ||
501 | return 0; | |
502 | } | |
503 | ||
504 | /** | |
505 | * t4vf_get_dev_params - retrieve device paremeters | |
506 | * @adapter: the adapter | |
507 | * | |
508 | * Retrives various device parameters. The parameters are stored in | |
509 | * @adapter->params.dev. | |
510 | */ | |
511 | int t4vf_get_dev_params(struct adapter *adapter) | |
512 | { | |
513 | struct dev_params *dev_params = &adapter->params.dev; | |
514 | u32 params[7], vals[7]; | |
515 | int v; | |
516 | ||
517 | params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | | |
518 | FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_FWREV)); | |
519 | params[1] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | | |
520 | FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_TPREV)); | |
521 | v = t4vf_query_params(adapter, 2, params, vals); | |
522 | if (v) | |
523 | return v; | |
524 | dev_params->fwrev = vals[0]; | |
525 | dev_params->tprev = vals[1]; | |
526 | ||
527 | return 0; | |
528 | } | |
529 | ||
530 | /** | |
531 | * t4vf_get_rss_glb_config - retrieve adapter RSS Global Configuration | |
532 | * @adapter: the adapter | |
533 | * | |
534 | * Retrieves global RSS mode and parameters with which we have to live | |
535 | * and stores them in the @adapter's RSS parameters. | |
536 | */ | |
537 | int t4vf_get_rss_glb_config(struct adapter *adapter) | |
538 | { | |
539 | struct rss_params *rss = &adapter->params.rss; | |
540 | struct fw_rss_glb_config_cmd cmd, rpl; | |
541 | int v; | |
542 | ||
543 | /* | |
544 | * Execute an RSS Global Configuration read command to retrieve | |
545 | * our RSS configuration. | |
546 | */ | |
547 | memset(&cmd, 0, sizeof(cmd)); | |
548 | cmd.op_to_write = cpu_to_be32(FW_CMD_OP(FW_RSS_GLB_CONFIG_CMD) | | |
549 | FW_CMD_REQUEST | | |
550 | FW_CMD_READ); | |
551 | cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd)); | |
552 | v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl); | |
553 | if (v) | |
554 | return v; | |
555 | ||
556 | /* | |
557 | * Transate the big-endian RSS Global Configuration into our | |
558 | * cpu-endian format based on the RSS mode. We also do first level | |
559 | * filtering at this point to weed out modes which don't support | |
560 | * VF Drivers ... | |
561 | */ | |
562 | rss->mode = FW_RSS_GLB_CONFIG_CMD_MODE_GET( | |
563 | be32_to_cpu(rpl.u.manual.mode_pkd)); | |
564 | switch (rss->mode) { | |
565 | case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: { | |
566 | u32 word = be32_to_cpu( | |
567 | rpl.u.basicvirtual.synmapen_to_hashtoeplitz); | |
568 | ||
569 | rss->u.basicvirtual.synmapen = | |
570 | ((word & FW_RSS_GLB_CONFIG_CMD_SYNMAPEN) != 0); | |
571 | rss->u.basicvirtual.syn4tupenipv6 = | |
572 | ((word & FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV6) != 0); | |
573 | rss->u.basicvirtual.syn2tupenipv6 = | |
574 | ((word & FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV6) != 0); | |
575 | rss->u.basicvirtual.syn4tupenipv4 = | |
576 | ((word & FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV4) != 0); | |
577 | rss->u.basicvirtual.syn2tupenipv4 = | |
578 | ((word & FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV4) != 0); | |
579 | ||
580 | rss->u.basicvirtual.ofdmapen = | |
581 | ((word & FW_RSS_GLB_CONFIG_CMD_OFDMAPEN) != 0); | |
582 | ||
583 | rss->u.basicvirtual.tnlmapen = | |
584 | ((word & FW_RSS_GLB_CONFIG_CMD_TNLMAPEN) != 0); | |
585 | rss->u.basicvirtual.tnlalllookup = | |
586 | ((word & FW_RSS_GLB_CONFIG_CMD_TNLALLLKP) != 0); | |
587 | ||
588 | rss->u.basicvirtual.hashtoeplitz = | |
589 | ((word & FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ) != 0); | |
590 | ||
591 | /* we need at least Tunnel Map Enable to be set */ | |
592 | if (!rss->u.basicvirtual.tnlmapen) | |
593 | return -EINVAL; | |
594 | break; | |
595 | } | |
596 | ||
597 | default: | |
598 | /* all unknown/unsupported RSS modes result in an error */ | |
599 | return -EINVAL; | |
600 | } | |
601 | ||
602 | return 0; | |
603 | } | |
604 | ||
605 | /** | |
606 | * t4vf_get_vfres - retrieve VF resource limits | |
607 | * @adapter: the adapter | |
608 | * | |
609 | * Retrieves configured resource limits and capabilities for a virtual | |
610 | * function. The results are stored in @adapter->vfres. | |
611 | */ | |
612 | int t4vf_get_vfres(struct adapter *adapter) | |
613 | { | |
614 | struct vf_resources *vfres = &adapter->params.vfres; | |
615 | struct fw_pfvf_cmd cmd, rpl; | |
616 | int v; | |
617 | u32 word; | |
618 | ||
619 | /* | |
620 | * Execute PFVF Read command to get VF resource limits; bail out early | |
621 | * with error on command failure. | |
622 | */ | |
623 | memset(&cmd, 0, sizeof(cmd)); | |
624 | cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_PFVF_CMD) | | |
625 | FW_CMD_REQUEST | | |
626 | FW_CMD_READ); | |
627 | cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd)); | |
628 | v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl); | |
629 | if (v) | |
630 | return v; | |
631 | ||
632 | /* | |
633 | * Extract VF resource limits and return success. | |
634 | */ | |
635 | word = be32_to_cpu(rpl.niqflint_niq); | |
636 | vfres->niqflint = FW_PFVF_CMD_NIQFLINT_GET(word); | |
637 | vfres->niq = FW_PFVF_CMD_NIQ_GET(word); | |
638 | ||
639 | word = be32_to_cpu(rpl.type_to_neq); | |
640 | vfres->neq = FW_PFVF_CMD_NEQ_GET(word); | |
641 | vfres->pmask = FW_PFVF_CMD_PMASK_GET(word); | |
642 | ||
643 | word = be32_to_cpu(rpl.tc_to_nexactf); | |
644 | vfres->tc = FW_PFVF_CMD_TC_GET(word); | |
645 | vfres->nvi = FW_PFVF_CMD_NVI_GET(word); | |
646 | vfres->nexactf = FW_PFVF_CMD_NEXACTF_GET(word); | |
647 | ||
648 | word = be32_to_cpu(rpl.r_caps_to_nethctrl); | |
649 | vfres->r_caps = FW_PFVF_CMD_R_CAPS_GET(word); | |
650 | vfres->wx_caps = FW_PFVF_CMD_WX_CAPS_GET(word); | |
651 | vfres->nethctrl = FW_PFVF_CMD_NETHCTRL_GET(word); | |
652 | ||
653 | return 0; | |
654 | } | |
655 | ||
656 | /** | |
657 | * t4vf_read_rss_vi_config - read a VI's RSS configuration | |
658 | * @adapter: the adapter | |
659 | * @viid: Virtual Interface ID | |
660 | * @config: pointer to host-native VI RSS Configuration buffer | |
661 | * | |
662 | * Reads the Virtual Interface's RSS configuration information and | |
663 | * translates it into CPU-native format. | |
664 | */ | |
665 | int t4vf_read_rss_vi_config(struct adapter *adapter, unsigned int viid, | |
666 | union rss_vi_config *config) | |
667 | { | |
668 | struct fw_rss_vi_config_cmd cmd, rpl; | |
669 | int v; | |
670 | ||
671 | memset(&cmd, 0, sizeof(cmd)); | |
672 | cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_RSS_VI_CONFIG_CMD) | | |
673 | FW_CMD_REQUEST | | |
674 | FW_CMD_READ | | |
675 | FW_RSS_VI_CONFIG_CMD_VIID(viid)); | |
676 | cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd)); | |
677 | v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl); | |
678 | if (v) | |
679 | return v; | |
680 | ||
681 | switch (adapter->params.rss.mode) { | |
682 | case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: { | |
683 | u32 word = be32_to_cpu(rpl.u.basicvirtual.defaultq_to_udpen); | |
684 | ||
685 | config->basicvirtual.ip6fourtupen = | |
686 | ((word & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN) != 0); | |
687 | config->basicvirtual.ip6twotupen = | |
688 | ((word & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN) != 0); | |
689 | config->basicvirtual.ip4fourtupen = | |
690 | ((word & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN) != 0); | |
691 | config->basicvirtual.ip4twotupen = | |
692 | ((word & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN) != 0); | |
693 | config->basicvirtual.udpen = | |
694 | ((word & FW_RSS_VI_CONFIG_CMD_UDPEN) != 0); | |
695 | config->basicvirtual.defaultq = | |
696 | FW_RSS_VI_CONFIG_CMD_DEFAULTQ_GET(word); | |
697 | break; | |
698 | } | |
699 | ||
700 | default: | |
701 | return -EINVAL; | |
702 | } | |
703 | ||
704 | return 0; | |
705 | } | |
706 | ||
707 | /** | |
708 | * t4vf_write_rss_vi_config - write a VI's RSS configuration | |
709 | * @adapter: the adapter | |
710 | * @viid: Virtual Interface ID | |
711 | * @config: pointer to host-native VI RSS Configuration buffer | |
712 | * | |
713 | * Write the Virtual Interface's RSS configuration information | |
714 | * (translating it into firmware-native format before writing). | |
715 | */ | |
716 | int t4vf_write_rss_vi_config(struct adapter *adapter, unsigned int viid, | |
717 | union rss_vi_config *config) | |
718 | { | |
719 | struct fw_rss_vi_config_cmd cmd, rpl; | |
720 | ||
721 | memset(&cmd, 0, sizeof(cmd)); | |
722 | cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_RSS_VI_CONFIG_CMD) | | |
723 | FW_CMD_REQUEST | | |
724 | FW_CMD_WRITE | | |
725 | FW_RSS_VI_CONFIG_CMD_VIID(viid)); | |
726 | cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd)); | |
727 | switch (adapter->params.rss.mode) { | |
728 | case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: { | |
729 | u32 word = 0; | |
730 | ||
731 | if (config->basicvirtual.ip6fourtupen) | |
732 | word |= FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN; | |
733 | if (config->basicvirtual.ip6twotupen) | |
734 | word |= FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN; | |
735 | if (config->basicvirtual.ip4fourtupen) | |
736 | word |= FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN; | |
737 | if (config->basicvirtual.ip4twotupen) | |
738 | word |= FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN; | |
739 | if (config->basicvirtual.udpen) | |
740 | word |= FW_RSS_VI_CONFIG_CMD_UDPEN; | |
741 | word |= FW_RSS_VI_CONFIG_CMD_DEFAULTQ( | |
742 | config->basicvirtual.defaultq); | |
743 | cmd.u.basicvirtual.defaultq_to_udpen = cpu_to_be32(word); | |
744 | break; | |
745 | } | |
746 | ||
747 | default: | |
748 | return -EINVAL; | |
749 | } | |
750 | ||
751 | return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl); | |
752 | } | |
753 | ||
754 | /** | |
755 | * t4vf_config_rss_range - configure a portion of the RSS mapping table | |
756 | * @adapter: the adapter | |
757 | * @viid: Virtual Interface of RSS Table Slice | |
758 | * @start: starting entry in the table to write | |
759 | * @n: how many table entries to write | |
760 | * @rspq: values for the "Response Queue" (Ingress Queue) lookup table | |
761 | * @nrspq: number of values in @rspq | |
762 | * | |
763 | * Programs the selected part of the VI's RSS mapping table with the | |
764 | * provided values. If @nrspq < @n the supplied values are used repeatedly | |
765 | * until the full table range is populated. | |
766 | * | |
767 | * The caller must ensure the values in @rspq are in the range 0..1023. | |
768 | */ | |
769 | int t4vf_config_rss_range(struct adapter *adapter, unsigned int viid, | |
770 | int start, int n, const u16 *rspq, int nrspq) | |
771 | { | |
772 | const u16 *rsp = rspq; | |
773 | const u16 *rsp_end = rspq+nrspq; | |
774 | struct fw_rss_ind_tbl_cmd cmd; | |
775 | ||
776 | /* | |
777 | * Initialize firmware command template to write the RSS table. | |
778 | */ | |
779 | memset(&cmd, 0, sizeof(cmd)); | |
780 | cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_RSS_IND_TBL_CMD) | | |
781 | FW_CMD_REQUEST | | |
782 | FW_CMD_WRITE | | |
783 | FW_RSS_IND_TBL_CMD_VIID(viid)); | |
784 | cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd)); | |
785 | ||
786 | /* | |
787 | * Each firmware RSS command can accommodate up to 32 RSS Ingress | |
788 | * Queue Identifiers. These Ingress Queue IDs are packed three to | |
789 | * a 32-bit word as 10-bit values with the upper remaining 2 bits | |
790 | * reserved. | |
791 | */ | |
792 | while (n > 0) { | |
793 | __be32 *qp = &cmd.iq0_to_iq2; | |
794 | int nq = min(n, 32); | |
795 | int ret; | |
796 | ||
797 | /* | |
798 | * Set up the firmware RSS command header to send the next | |
799 | * "nq" Ingress Queue IDs to the firmware. | |
800 | */ | |
801 | cmd.niqid = cpu_to_be16(nq); | |
802 | cmd.startidx = cpu_to_be16(start); | |
803 | ||
804 | /* | |
805 | * "nq" more done for the start of the next loop. | |
806 | */ | |
807 | start += nq; | |
808 | n -= nq; | |
809 | ||
810 | /* | |
811 | * While there are still Ingress Queue IDs to stuff into the | |
812 | * current firmware RSS command, retrieve them from the | |
813 | * Ingress Queue ID array and insert them into the command. | |
814 | */ | |
815 | while (nq > 0) { | |
816 | /* | |
817 | * Grab up to the next 3 Ingress Queue IDs (wrapping | |
818 | * around the Ingress Queue ID array if necessary) and | |
819 | * insert them into the firmware RSS command at the | |
820 | * current 3-tuple position within the commad. | |
821 | */ | |
822 | u16 qbuf[3]; | |
823 | u16 *qbp = qbuf; | |
824 | int nqbuf = min(3, nq); | |
825 | ||
826 | nq -= nqbuf; | |
827 | qbuf[0] = qbuf[1] = qbuf[2] = 0; | |
828 | while (nqbuf) { | |
829 | nqbuf--; | |
830 | *qbp++ = *rsp++; | |
831 | if (rsp >= rsp_end) | |
832 | rsp = rspq; | |
833 | } | |
834 | *qp++ = cpu_to_be32(FW_RSS_IND_TBL_CMD_IQ0(qbuf[0]) | | |
835 | FW_RSS_IND_TBL_CMD_IQ1(qbuf[1]) | | |
836 | FW_RSS_IND_TBL_CMD_IQ2(qbuf[2])); | |
837 | } | |
838 | ||
839 | /* | |
840 | * Send this portion of the RRS table update to the firmware; | |
841 | * bail out on any errors. | |
842 | */ | |
843 | ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL); | |
844 | if (ret) | |
845 | return ret; | |
846 | } | |
847 | return 0; | |
848 | } | |
849 | ||
850 | /** | |
851 | * t4vf_alloc_vi - allocate a virtual interface on a port | |
852 | * @adapter: the adapter | |
853 | * @port_id: physical port associated with the VI | |
854 | * | |
855 | * Allocate a new Virtual Interface and bind it to the indicated | |
856 | * physical port. Return the new Virtual Interface Identifier on | |
857 | * success, or a [negative] error number on failure. | |
858 | */ | |
859 | int t4vf_alloc_vi(struct adapter *adapter, int port_id) | |
860 | { | |
861 | struct fw_vi_cmd cmd, rpl; | |
862 | int v; | |
863 | ||
864 | /* | |
865 | * Execute a VI command to allocate Virtual Interface and return its | |
866 | * VIID. | |
867 | */ | |
868 | memset(&cmd, 0, sizeof(cmd)); | |
869 | cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_VI_CMD) | | |
870 | FW_CMD_REQUEST | | |
871 | FW_CMD_WRITE | | |
872 | FW_CMD_EXEC); | |
873 | cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(cmd) | | |
874 | FW_VI_CMD_ALLOC); | |
875 | cmd.portid_pkd = FW_VI_CMD_PORTID(port_id); | |
876 | v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl); | |
877 | if (v) | |
878 | return v; | |
879 | ||
880 | return FW_VI_CMD_VIID_GET(be16_to_cpu(rpl.type_viid)); | |
881 | } | |
882 | ||
883 | /** | |
884 | * t4vf_free_vi -- free a virtual interface | |
885 | * @adapter: the adapter | |
886 | * @viid: the virtual interface identifier | |
887 | * | |
888 | * Free a previously allocated Virtual Interface. Return an error on | |
889 | * failure. | |
890 | */ | |
891 | int t4vf_free_vi(struct adapter *adapter, int viid) | |
892 | { | |
893 | struct fw_vi_cmd cmd; | |
894 | ||
895 | /* | |
896 | * Execute a VI command to free the Virtual Interface. | |
897 | */ | |
898 | memset(&cmd, 0, sizeof(cmd)); | |
899 | cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_VI_CMD) | | |
900 | FW_CMD_REQUEST | | |
901 | FW_CMD_EXEC); | |
902 | cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(cmd) | | |
903 | FW_VI_CMD_FREE); | |
904 | cmd.type_viid = cpu_to_be16(FW_VI_CMD_VIID(viid)); | |
905 | return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL); | |
906 | } | |
907 | ||
908 | /** | |
909 | * t4vf_enable_vi - enable/disable a virtual interface | |
910 | * @adapter: the adapter | |
911 | * @viid: the Virtual Interface ID | |
912 | * @rx_en: 1=enable Rx, 0=disable Rx | |
913 | * @tx_en: 1=enable Tx, 0=disable Tx | |
914 | * | |
915 | * Enables/disables a virtual interface. | |
916 | */ | |
917 | int t4vf_enable_vi(struct adapter *adapter, unsigned int viid, | |
918 | bool rx_en, bool tx_en) | |
919 | { | |
920 | struct fw_vi_enable_cmd cmd; | |
921 | ||
922 | memset(&cmd, 0, sizeof(cmd)); | |
923 | cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_ENABLE_CMD) | | |
924 | FW_CMD_REQUEST | | |
925 | FW_CMD_EXEC | | |
926 | FW_VI_ENABLE_CMD_VIID(viid)); | |
927 | cmd.ien_to_len16 = cpu_to_be32(FW_VI_ENABLE_CMD_IEN(rx_en) | | |
928 | FW_VI_ENABLE_CMD_EEN(tx_en) | | |
929 | FW_LEN16(cmd)); | |
930 | return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL); | |
931 | } | |
932 | ||
933 | /** | |
934 | * t4vf_identify_port - identify a VI's port by blinking its LED | |
935 | * @adapter: the adapter | |
936 | * @viid: the Virtual Interface ID | |
937 | * @nblinks: how many times to blink LED at 2.5 Hz | |
938 | * | |
939 | * Identifies a VI's port by blinking its LED. | |
940 | */ | |
941 | int t4vf_identify_port(struct adapter *adapter, unsigned int viid, | |
942 | unsigned int nblinks) | |
943 | { | |
944 | struct fw_vi_enable_cmd cmd; | |
945 | ||
946 | memset(&cmd, 0, sizeof(cmd)); | |
947 | cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_ENABLE_CMD) | | |
948 | FW_CMD_REQUEST | | |
949 | FW_CMD_EXEC | | |
950 | FW_VI_ENABLE_CMD_VIID(viid)); | |
951 | cmd.ien_to_len16 = cpu_to_be32(FW_VI_ENABLE_CMD_LED | | |
952 | FW_LEN16(cmd)); | |
953 | cmd.blinkdur = cpu_to_be16(nblinks); | |
954 | return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL); | |
955 | } | |
956 | ||
957 | /** | |
958 | * t4vf_set_rxmode - set Rx properties of a virtual interface | |
959 | * @adapter: the adapter | |
960 | * @viid: the VI id | |
961 | * @mtu: the new MTU or -1 for no change | |
962 | * @promisc: 1 to enable promiscuous mode, 0 to disable it, -1 no change | |
963 | * @all_multi: 1 to enable all-multi mode, 0 to disable it, -1 no change | |
964 | * @bcast: 1 to enable broadcast Rx, 0 to disable it, -1 no change | |
965 | * @vlanex: 1 to enable hardware VLAN Tag extraction, 0 to disable it, | |
966 | * -1 no change | |
967 | * | |
968 | * Sets Rx properties of a virtual interface. | |
969 | */ | |
970 | int t4vf_set_rxmode(struct adapter *adapter, unsigned int viid, | |
971 | int mtu, int promisc, int all_multi, int bcast, int vlanex, | |
972 | bool sleep_ok) | |
973 | { | |
974 | struct fw_vi_rxmode_cmd cmd; | |
975 | ||
976 | /* convert to FW values */ | |
977 | if (mtu < 0) | |
978 | mtu = FW_VI_RXMODE_CMD_MTU_MASK; | |
979 | if (promisc < 0) | |
980 | promisc = FW_VI_RXMODE_CMD_PROMISCEN_MASK; | |
981 | if (all_multi < 0) | |
982 | all_multi = FW_VI_RXMODE_CMD_ALLMULTIEN_MASK; | |
983 | if (bcast < 0) | |
984 | bcast = FW_VI_RXMODE_CMD_BROADCASTEN_MASK; | |
985 | if (vlanex < 0) | |
986 | vlanex = FW_VI_RXMODE_CMD_VLANEXEN_MASK; | |
987 | ||
988 | memset(&cmd, 0, sizeof(cmd)); | |
989 | cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_RXMODE_CMD) | | |
990 | FW_CMD_REQUEST | | |
991 | FW_CMD_WRITE | | |
992 | FW_VI_RXMODE_CMD_VIID(viid)); | |
993 | cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd)); | |
994 | cmd.mtu_to_vlanexen = | |
995 | cpu_to_be32(FW_VI_RXMODE_CMD_MTU(mtu) | | |
996 | FW_VI_RXMODE_CMD_PROMISCEN(promisc) | | |
997 | FW_VI_RXMODE_CMD_ALLMULTIEN(all_multi) | | |
998 | FW_VI_RXMODE_CMD_BROADCASTEN(bcast) | | |
999 | FW_VI_RXMODE_CMD_VLANEXEN(vlanex)); | |
1000 | return t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), NULL, sleep_ok); | |
1001 | } | |
1002 | ||
1003 | /** | |
1004 | * t4vf_alloc_mac_filt - allocates exact-match filters for MAC addresses | |
1005 | * @adapter: the adapter | |
1006 | * @viid: the Virtual Interface Identifier | |
1007 | * @free: if true any existing filters for this VI id are first removed | |
1008 | * @naddr: the number of MAC addresses to allocate filters for (up to 7) | |
1009 | * @addr: the MAC address(es) | |
1010 | * @idx: where to store the index of each allocated filter | |
1011 | * @hash: pointer to hash address filter bitmap | |
1012 | * @sleep_ok: call is allowed to sleep | |
1013 | * | |
1014 | * Allocates an exact-match filter for each of the supplied addresses and | |
1015 | * sets it to the corresponding address. If @idx is not %NULL it should | |
1016 | * have at least @naddr entries, each of which will be set to the index of | |
1017 | * the filter allocated for the corresponding MAC address. If a filter | |
1018 | * could not be allocated for an address its index is set to 0xffff. | |
1019 | * If @hash is not %NULL addresses that fail to allocate an exact filter | |
1020 | * are hashed and update the hash filter bitmap pointed at by @hash. | |
1021 | * | |
1022 | * Returns a negative error number or the number of filters allocated. | |
1023 | */ | |
1024 | int t4vf_alloc_mac_filt(struct adapter *adapter, unsigned int viid, bool free, | |
1025 | unsigned int naddr, const u8 **addr, u16 *idx, | |
1026 | u64 *hash, bool sleep_ok) | |
1027 | { | |
42eb59d3 CL |
1028 | int offset, ret = 0; |
1029 | unsigned nfilters = 0; | |
1030 | unsigned int rem = naddr; | |
16f8bd4b | 1031 | struct fw_vi_mac_cmd cmd, rpl; |
16f8bd4b | 1032 | |
42eb59d3 | 1033 | if (naddr > FW_CLS_TCAM_NUM_ENTRIES) |
16f8bd4b | 1034 | return -EINVAL; |
16f8bd4b | 1035 | |
42eb59d3 CL |
1036 | for (offset = 0; offset < naddr; /**/) { |
1037 | unsigned int fw_naddr = (rem < ARRAY_SIZE(cmd.u.exact) | |
1038 | ? rem | |
1039 | : ARRAY_SIZE(cmd.u.exact)); | |
1040 | size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd, | |
1041 | u.exact[fw_naddr]), 16); | |
1042 | struct fw_vi_mac_exact *p; | |
1043 | int i; | |
1044 | ||
1045 | memset(&cmd, 0, sizeof(cmd)); | |
1046 | cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_MAC_CMD) | | |
1047 | FW_CMD_REQUEST | | |
1048 | FW_CMD_WRITE | | |
1049 | (free ? FW_CMD_EXEC : 0) | | |
1050 | FW_VI_MAC_CMD_VIID(viid)); | |
1051 | cmd.freemacs_to_len16 = | |
1052 | cpu_to_be32(FW_VI_MAC_CMD_FREEMACS(free) | | |
1053 | FW_CMD_LEN16(len16)); | |
1054 | ||
1055 | for (i = 0, p = cmd.u.exact; i < fw_naddr; i++, p++) { | |
1056 | p->valid_to_idx = cpu_to_be16( | |
1057 | FW_VI_MAC_CMD_VALID | | |
1058 | FW_VI_MAC_CMD_IDX(FW_VI_MAC_ADD_MAC)); | |
1059 | memcpy(p->macaddr, addr[offset+i], sizeof(p->macaddr)); | |
1060 | } | |
16f8bd4b | 1061 | |
42eb59d3 CL |
1062 | |
1063 | ret = t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), &rpl, | |
1064 | sleep_ok); | |
1065 | if (ret && ret != -ENOMEM) | |
1066 | break; | |
1067 | ||
1068 | for (i = 0, p = rpl.u.exact; i < fw_naddr; i++, p++) { | |
1069 | u16 index = FW_VI_MAC_CMD_IDX_GET( | |
1070 | be16_to_cpu(p->valid_to_idx)); | |
1071 | ||
1072 | if (idx) | |
1073 | idx[offset+i] = | |
1074 | (index >= FW_CLS_TCAM_NUM_ENTRIES | |
1075 | ? 0xffff | |
1076 | : index); | |
1077 | if (index < FW_CLS_TCAM_NUM_ENTRIES) | |
1078 | nfilters++; | |
1079 | else if (hash) | |
1080 | *hash |= (1ULL << hash_mac_addr(addr[offset+i])); | |
1081 | } | |
1082 | ||
1083 | free = false; | |
1084 | offset += fw_naddr; | |
1085 | rem -= fw_naddr; | |
16f8bd4b | 1086 | } |
42eb59d3 CL |
1087 | |
1088 | /* | |
1089 | * If there were no errors or we merely ran out of room in our MAC | |
1090 | * address arena, return the number of filters actually written. | |
1091 | */ | |
1092 | if (ret == 0 || ret == -ENOMEM) | |
1093 | ret = nfilters; | |
16f8bd4b CL |
1094 | return ret; |
1095 | } | |
1096 | ||
1097 | /** | |
1098 | * t4vf_change_mac - modifies the exact-match filter for a MAC address | |
1099 | * @adapter: the adapter | |
1100 | * @viid: the Virtual Interface ID | |
1101 | * @idx: index of existing filter for old value of MAC address, or -1 | |
1102 | * @addr: the new MAC address value | |
1103 | * @persist: if idx < 0, the new MAC allocation should be persistent | |
1104 | * | |
1105 | * Modifies an exact-match filter and sets it to the new MAC address. | |
1106 | * Note that in general it is not possible to modify the value of a given | |
1107 | * filter so the generic way to modify an address filter is to free the | |
1108 | * one being used by the old address value and allocate a new filter for | |
1109 | * the new address value. @idx can be -1 if the address is a new | |
1110 | * addition. | |
1111 | * | |
1112 | * Returns a negative error number or the index of the filter with the new | |
1113 | * MAC value. | |
1114 | */ | |
1115 | int t4vf_change_mac(struct adapter *adapter, unsigned int viid, | |
1116 | int idx, const u8 *addr, bool persist) | |
1117 | { | |
1118 | int ret; | |
1119 | struct fw_vi_mac_cmd cmd, rpl; | |
1120 | struct fw_vi_mac_exact *p = &cmd.u.exact[0]; | |
1121 | size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd, | |
1122 | u.exact[1]), 16); | |
1123 | ||
1124 | /* | |
1125 | * If this is a new allocation, determine whether it should be | |
1126 | * persistent (across a "freemacs" operation) or not. | |
1127 | */ | |
1128 | if (idx < 0) | |
1129 | idx = persist ? FW_VI_MAC_ADD_PERSIST_MAC : FW_VI_MAC_ADD_MAC; | |
1130 | ||
1131 | memset(&cmd, 0, sizeof(cmd)); | |
1132 | cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_MAC_CMD) | | |
1133 | FW_CMD_REQUEST | | |
1134 | FW_CMD_WRITE | | |
1135 | FW_VI_MAC_CMD_VIID(viid)); | |
1136 | cmd.freemacs_to_len16 = cpu_to_be32(FW_CMD_LEN16(len16)); | |
1137 | p->valid_to_idx = cpu_to_be16(FW_VI_MAC_CMD_VALID | | |
1138 | FW_VI_MAC_CMD_IDX(idx)); | |
1139 | memcpy(p->macaddr, addr, sizeof(p->macaddr)); | |
1140 | ||
1141 | ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl); | |
1142 | if (ret == 0) { | |
1143 | p = &rpl.u.exact[0]; | |
1144 | ret = FW_VI_MAC_CMD_IDX_GET(be16_to_cpu(p->valid_to_idx)); | |
1145 | if (ret >= FW_CLS_TCAM_NUM_ENTRIES) | |
1146 | ret = -ENOMEM; | |
1147 | } | |
1148 | return ret; | |
1149 | } | |
1150 | ||
1151 | /** | |
1152 | * t4vf_set_addr_hash - program the MAC inexact-match hash filter | |
1153 | * @adapter: the adapter | |
1154 | * @viid: the Virtual Interface Identifier | |
1155 | * @ucast: whether the hash filter should also match unicast addresses | |
1156 | * @vec: the value to be written to the hash filter | |
1157 | * @sleep_ok: call is allowed to sleep | |
1158 | * | |
1159 | * Sets the 64-bit inexact-match hash filter for a virtual interface. | |
1160 | */ | |
1161 | int t4vf_set_addr_hash(struct adapter *adapter, unsigned int viid, | |
1162 | bool ucast, u64 vec, bool sleep_ok) | |
1163 | { | |
1164 | struct fw_vi_mac_cmd cmd; | |
1165 | size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd, | |
1166 | u.exact[0]), 16); | |
1167 | ||
1168 | memset(&cmd, 0, sizeof(cmd)); | |
1169 | cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_MAC_CMD) | | |
1170 | FW_CMD_REQUEST | | |
1171 | FW_CMD_WRITE | | |
1172 | FW_VI_ENABLE_CMD_VIID(viid)); | |
1173 | cmd.freemacs_to_len16 = cpu_to_be32(FW_VI_MAC_CMD_HASHVECEN | | |
1174 | FW_VI_MAC_CMD_HASHUNIEN(ucast) | | |
1175 | FW_CMD_LEN16(len16)); | |
1176 | cmd.u.hash.hashvec = cpu_to_be64(vec); | |
1177 | return t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), NULL, sleep_ok); | |
1178 | } | |
1179 | ||
1180 | /** | |
1181 | * t4vf_get_port_stats - collect "port" statistics | |
1182 | * @adapter: the adapter | |
1183 | * @pidx: the port index | |
1184 | * @s: the stats structure to fill | |
1185 | * | |
1186 | * Collect statistics for the "port"'s Virtual Interface. | |
1187 | */ | |
1188 | int t4vf_get_port_stats(struct adapter *adapter, int pidx, | |
1189 | struct t4vf_port_stats *s) | |
1190 | { | |
1191 | struct port_info *pi = adap2pinfo(adapter, pidx); | |
1192 | struct fw_vi_stats_vf fwstats; | |
1193 | unsigned int rem = VI_VF_NUM_STATS; | |
1194 | __be64 *fwsp = (__be64 *)&fwstats; | |
1195 | ||
1196 | /* | |
1197 | * Grab the Virtual Interface statistics a chunk at a time via mailbox | |
1198 | * commands. We could use a Work Request and get all of them at once | |
1199 | * but that's an asynchronous interface which is awkward to use. | |
1200 | */ | |
1201 | while (rem) { | |
1202 | unsigned int ix = VI_VF_NUM_STATS - rem; | |
1203 | unsigned int nstats = min(6U, rem); | |
1204 | struct fw_vi_stats_cmd cmd, rpl; | |
1205 | size_t len = (offsetof(struct fw_vi_stats_cmd, u) + | |
1206 | sizeof(struct fw_vi_stats_ctl)); | |
1207 | size_t len16 = DIV_ROUND_UP(len, 16); | |
1208 | int ret; | |
1209 | ||
1210 | memset(&cmd, 0, sizeof(cmd)); | |
1211 | cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_STATS_CMD) | | |
1212 | FW_VI_STATS_CMD_VIID(pi->viid) | | |
1213 | FW_CMD_REQUEST | | |
1214 | FW_CMD_READ); | |
1215 | cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16(len16)); | |
1216 | cmd.u.ctl.nstats_ix = | |
1217 | cpu_to_be16(FW_VI_STATS_CMD_IX(ix) | | |
1218 | FW_VI_STATS_CMD_NSTATS(nstats)); | |
1219 | ret = t4vf_wr_mbox_ns(adapter, &cmd, len, &rpl); | |
1220 | if (ret) | |
1221 | return ret; | |
1222 | ||
1223 | memcpy(fwsp, &rpl.u.ctl.stat0, sizeof(__be64) * nstats); | |
1224 | ||
1225 | rem -= nstats; | |
1226 | fwsp += nstats; | |
1227 | } | |
1228 | ||
1229 | /* | |
1230 | * Translate firmware statistics into host native statistics. | |
1231 | */ | |
1232 | s->tx_bcast_bytes = be64_to_cpu(fwstats.tx_bcast_bytes); | |
1233 | s->tx_bcast_frames = be64_to_cpu(fwstats.tx_bcast_frames); | |
1234 | s->tx_mcast_bytes = be64_to_cpu(fwstats.tx_mcast_bytes); | |
1235 | s->tx_mcast_frames = be64_to_cpu(fwstats.tx_mcast_frames); | |
1236 | s->tx_ucast_bytes = be64_to_cpu(fwstats.tx_ucast_bytes); | |
1237 | s->tx_ucast_frames = be64_to_cpu(fwstats.tx_ucast_frames); | |
1238 | s->tx_drop_frames = be64_to_cpu(fwstats.tx_drop_frames); | |
1239 | s->tx_offload_bytes = be64_to_cpu(fwstats.tx_offload_bytes); | |
1240 | s->tx_offload_frames = be64_to_cpu(fwstats.tx_offload_frames); | |
1241 | ||
1242 | s->rx_bcast_bytes = be64_to_cpu(fwstats.rx_bcast_bytes); | |
1243 | s->rx_bcast_frames = be64_to_cpu(fwstats.rx_bcast_frames); | |
1244 | s->rx_mcast_bytes = be64_to_cpu(fwstats.rx_mcast_bytes); | |
1245 | s->rx_mcast_frames = be64_to_cpu(fwstats.rx_mcast_frames); | |
1246 | s->rx_ucast_bytes = be64_to_cpu(fwstats.rx_ucast_bytes); | |
1247 | s->rx_ucast_frames = be64_to_cpu(fwstats.rx_ucast_frames); | |
1248 | ||
1249 | s->rx_err_frames = be64_to_cpu(fwstats.rx_err_frames); | |
1250 | ||
1251 | return 0; | |
1252 | } | |
1253 | ||
1254 | /** | |
1255 | * t4vf_iq_free - free an ingress queue and its free lists | |
1256 | * @adapter: the adapter | |
1257 | * @iqtype: the ingress queue type (FW_IQ_TYPE_FL_INT_CAP, etc.) | |
1258 | * @iqid: ingress queue ID | |
1259 | * @fl0id: FL0 queue ID or 0xffff if no attached FL0 | |
1260 | * @fl1id: FL1 queue ID or 0xffff if no attached FL1 | |
1261 | * | |
1262 | * Frees an ingress queue and its associated free lists, if any. | |
1263 | */ | |
1264 | int t4vf_iq_free(struct adapter *adapter, unsigned int iqtype, | |
1265 | unsigned int iqid, unsigned int fl0id, unsigned int fl1id) | |
1266 | { | |
1267 | struct fw_iq_cmd cmd; | |
1268 | ||
1269 | memset(&cmd, 0, sizeof(cmd)); | |
1270 | cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_IQ_CMD) | | |
1271 | FW_CMD_REQUEST | | |
1272 | FW_CMD_EXEC); | |
1273 | cmd.alloc_to_len16 = cpu_to_be32(FW_IQ_CMD_FREE | | |
1274 | FW_LEN16(cmd)); | |
1275 | cmd.type_to_iqandstindex = | |
1276 | cpu_to_be32(FW_IQ_CMD_TYPE(iqtype)); | |
1277 | ||
1278 | cmd.iqid = cpu_to_be16(iqid); | |
1279 | cmd.fl0id = cpu_to_be16(fl0id); | |
1280 | cmd.fl1id = cpu_to_be16(fl1id); | |
1281 | return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL); | |
1282 | } | |
1283 | ||
1284 | /** | |
1285 | * t4vf_eth_eq_free - free an Ethernet egress queue | |
1286 | * @adapter: the adapter | |
1287 | * @eqid: egress queue ID | |
1288 | * | |
1289 | * Frees an Ethernet egress queue. | |
1290 | */ | |
1291 | int t4vf_eth_eq_free(struct adapter *adapter, unsigned int eqid) | |
1292 | { | |
1293 | struct fw_eq_eth_cmd cmd; | |
1294 | ||
1295 | memset(&cmd, 0, sizeof(cmd)); | |
1296 | cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_EQ_ETH_CMD) | | |
1297 | FW_CMD_REQUEST | | |
1298 | FW_CMD_EXEC); | |
1299 | cmd.alloc_to_len16 = cpu_to_be32(FW_EQ_ETH_CMD_FREE | | |
1300 | FW_LEN16(cmd)); | |
1301 | cmd.eqid_pkd = cpu_to_be32(FW_EQ_ETH_CMD_EQID(eqid)); | |
1302 | return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL); | |
1303 | } | |
1304 | ||
1305 | /** | |
1306 | * t4vf_handle_fw_rpl - process a firmware reply message | |
1307 | * @adapter: the adapter | |
1308 | * @rpl: start of the firmware message | |
1309 | * | |
1310 | * Processes a firmware message, such as link state change messages. | |
1311 | */ | |
1312 | int t4vf_handle_fw_rpl(struct adapter *adapter, const __be64 *rpl) | |
1313 | { | |
caedda35 | 1314 | const struct fw_cmd_hdr *cmd_hdr = (const struct fw_cmd_hdr *)rpl; |
16f8bd4b CL |
1315 | u8 opcode = FW_CMD_OP_GET(be32_to_cpu(cmd_hdr->hi)); |
1316 | ||
1317 | switch (opcode) { | |
1318 | case FW_PORT_CMD: { | |
1319 | /* | |
1320 | * Link/module state change message. | |
1321 | */ | |
caedda35 CL |
1322 | const struct fw_port_cmd *port_cmd = |
1323 | (const struct fw_port_cmd *)rpl; | |
16f8bd4b CL |
1324 | u32 word; |
1325 | int action, port_id, link_ok, speed, fc, pidx; | |
1326 | ||
1327 | /* | |
1328 | * Extract various fields from port status change message. | |
1329 | */ | |
1330 | action = FW_PORT_CMD_ACTION_GET( | |
1331 | be32_to_cpu(port_cmd->action_to_len16)); | |
1332 | if (action != FW_PORT_ACTION_GET_PORT_INFO) { | |
1333 | dev_err(adapter->pdev_dev, | |
1334 | "Unknown firmware PORT reply action %x\n", | |
1335 | action); | |
1336 | break; | |
1337 | } | |
1338 | ||
1339 | port_id = FW_PORT_CMD_PORTID_GET( | |
1340 | be32_to_cpu(port_cmd->op_to_portid)); | |
1341 | ||
1342 | word = be32_to_cpu(port_cmd->u.info.lstatus_to_modtype); | |
1343 | link_ok = (word & FW_PORT_CMD_LSTATUS) != 0; | |
1344 | speed = 0; | |
1345 | fc = 0; | |
1346 | if (word & FW_PORT_CMD_RXPAUSE) | |
1347 | fc |= PAUSE_RX; | |
1348 | if (word & FW_PORT_CMD_TXPAUSE) | |
1349 | fc |= PAUSE_TX; | |
1350 | if (word & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_100M)) | |
1351 | speed = SPEED_100; | |
1352 | else if (word & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_1G)) | |
1353 | speed = SPEED_1000; | |
1354 | else if (word & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_10G)) | |
1355 | speed = SPEED_10000; | |
1356 | ||
1357 | /* | |
1358 | * Scan all of our "ports" (Virtual Interfaces) looking for | |
1359 | * those bound to the physical port which has changed. If | |
1360 | * our recorded state doesn't match the current state, | |
1361 | * signal that change to the OS code. | |
1362 | */ | |
1363 | for_each_port(adapter, pidx) { | |
1364 | struct port_info *pi = adap2pinfo(adapter, pidx); | |
1365 | struct link_config *lc; | |
1366 | ||
1367 | if (pi->port_id != port_id) | |
1368 | continue; | |
1369 | ||
1370 | lc = &pi->link_cfg; | |
1371 | if (link_ok != lc->link_ok || speed != lc->speed || | |
1372 | fc != lc->fc) { | |
1373 | /* something changed */ | |
1374 | lc->link_ok = link_ok; | |
1375 | lc->speed = speed; | |
1376 | lc->fc = fc; | |
1377 | t4vf_os_link_changed(adapter, pidx, link_ok); | |
1378 | } | |
1379 | } | |
1380 | break; | |
1381 | } | |
1382 | ||
1383 | default: | |
1384 | dev_err(adapter->pdev_dev, "Unknown firmware reply %X\n", | |
1385 | opcode); | |
1386 | } | |
1387 | return 0; | |
1388 | } |