29
30#include "opt_inet.h"
31
32#include "common.h"
33#include "t4_regs.h"
34#include "t4_regs_values.h"
35#include "firmware/t4fw_interface.h"
36
37#undef msleep
38#define msleep(x) do { \
39 if (cold) \
40 DELAY((x) * 1000); \
41 else \
42 pause("t4hw", (x) * hz / 1000); \
43} while (0)
44
45/**
46 * t4_wait_op_done_val - wait until an operation is completed
47 * @adapter: the adapter performing the operation
48 * @reg: the register to check for completion
49 * @mask: a single-bit field within @reg that indicates completion
50 * @polarity: the value of the field when the operation is completed
51 * @attempts: number of check iterations
52 * @delay: delay in usecs between iterations
53 * @valp: where to store the value of the register at completion time
54 *
55 * Wait until an operation is completed by checking a bit in a register
56 * up to @attempts times. If @valp is not NULL the value of the register
57 * at the time it indicated completion is stored there. Returns 0 if the
58 * operation completes and -EAGAIN otherwise.
59 */
60int t4_wait_op_done_val(struct adapter *adapter, int reg, u32 mask,
61 int polarity, int attempts, int delay, u32 *valp)
62{
63 while (1) {
64 u32 val = t4_read_reg(adapter, reg);
65
66 if (!!(val & mask) == polarity) {
67 if (valp)
68 *valp = val;
69 return 0;
70 }
71 if (--attempts == 0)
72 return -EAGAIN;
73 if (delay)
74 udelay(delay);
75 }
76}
77
78/**
79 * t4_set_reg_field - set a register field to a value
80 * @adapter: the adapter to program
81 * @addr: the register address
82 * @mask: specifies the portion of the register to modify
83 * @val: the new value for the register field
84 *
85 * Sets a register field specified by the supplied mask to the
86 * given value.
87 */
88void t4_set_reg_field(struct adapter *adapter, unsigned int addr, u32 mask,
89 u32 val)
90{
91 u32 v = t4_read_reg(adapter, addr) & ~mask;
92
93 t4_write_reg(adapter, addr, v | val);
94 (void) t4_read_reg(adapter, addr); /* flush */
95}
96
97/**
98 * t4_read_indirect - read indirectly addressed registers
99 * @adap: the adapter
100 * @addr_reg: register holding the indirect address
101 * @data_reg: register holding the value of the indirect register
102 * @vals: where the read register values are stored
103 * @nregs: how many indirect registers to read
104 * @start_idx: index of first indirect register to read
105 *
106 * Reads registers that are accessed indirectly through an address/data
107 * register pair.
108 */
109void t4_read_indirect(struct adapter *adap, unsigned int addr_reg,
110 unsigned int data_reg, u32 *vals, unsigned int nregs,
111 unsigned int start_idx)
112{
113 while (nregs--) {
114 t4_write_reg(adap, addr_reg, start_idx);
115 *vals++ = t4_read_reg(adap, data_reg);
116 start_idx++;
117 }
118}
119
120/**
121 * t4_write_indirect - write indirectly addressed registers
122 * @adap: the adapter
123 * @addr_reg: register holding the indirect addresses
124 * @data_reg: register holding the value for the indirect registers
125 * @vals: values to write
126 * @nregs: how many indirect registers to write
127 * @start_idx: address of first indirect register to write
128 *
129 * Writes a sequential block of registers that are accessed indirectly
130 * through an address/data register pair.
131 */
132void t4_write_indirect(struct adapter *adap, unsigned int addr_reg,
133 unsigned int data_reg, const u32 *vals,
134 unsigned int nregs, unsigned int start_idx)
135{
136 while (nregs--) {
137 t4_write_reg(adap, addr_reg, start_idx++);
138 t4_write_reg(adap, data_reg, *vals++);
139 }
140}
141
142/*
143 * Read a 32-bit PCI Configuration Space register via the PCI-E backdoor
144 * mechanism. This guarantees that we get the real value even if we're
145 * operating within a Virtual Machine and the Hypervisor is trapping our
146 * Configuration Space accesses.
147 */
148u32 t4_hw_pci_read_cfg4(adapter_t *adap, int reg)
149{
150 t4_write_reg(adap, A_PCIE_CFG_SPACE_REQ,
151 F_ENABLE | F_LOCALCFG | V_FUNCTION(adap->pf) |
152 V_REGISTER(reg));
153 return t4_read_reg(adap, A_PCIE_CFG_SPACE_DATA);
154}
155
156/*
157 * t4_report_fw_error - report firmware error
158 * @adap: the adapter
159 *
160 * The adapter firmware can indicate error conditions to the host.
161 * This routine prints out the reason for the firmware error (as
162 * reported by the firmware).
163 */
164static void t4_report_fw_error(struct adapter *adap)
165{
166 static const char *reason[] = {
167 "Crash", /* PCIE_FW_EVAL_CRASH */
168 "During Device Preparation", /* PCIE_FW_EVAL_PREP */
169 "During Device Configuration", /* PCIE_FW_EVAL_CONF */
170 "During Device Initialization", /* PCIE_FW_EVAL_INIT */
171 "Unexpected Event", /* PCIE_FW_EVAL_UNEXPECTEDEVENT */
172 "Insufficient Airflow", /* PCIE_FW_EVAL_OVERHEAT */
173 "Device Shutdown", /* PCIE_FW_EVAL_DEVICESHUTDOWN */
174 "Reserved", /* reserved */
175 };
176 u32 pcie_fw;
177
178 pcie_fw = t4_read_reg(adap, A_PCIE_FW);
179 if (pcie_fw & F_PCIE_FW_ERR)
180 CH_ERR(adap, "Firmware reports adapter error: %s\n",
181 reason[G_PCIE_FW_EVAL(pcie_fw)]);
182}
183
184/*
185 * Get the reply to a mailbox command and store it in @rpl in big-endian order.
186 */
187static void get_mbox_rpl(struct adapter *adap, __be64 *rpl, int nflit,
188 u32 mbox_addr)
189{
190 for ( ; nflit; nflit--, mbox_addr += 8)
191 *rpl++ = cpu_to_be64(t4_read_reg64(adap, mbox_addr));
192}
193
194/*
195 * Handle a FW assertion reported in a mailbox.
196 */
197static void fw_asrt(struct adapter *adap, u32 mbox_addr)
198{
199 struct fw_debug_cmd asrt;
200
201 get_mbox_rpl(adap, (__be64 *)&asrt, sizeof(asrt) / 8, mbox_addr);
202 CH_ALERT(adap, "FW assertion at %.16s:%u, val0 %#x, val1 %#x\n",
203 asrt.u.assert.filename_0_7, ntohl(asrt.u.assert.line),
204 ntohl(asrt.u.assert.x), ntohl(asrt.u.assert.y));
205}
206
207#define X_CIM_PF_NOACCESS 0xeeeeeeee
208/**
209 * t4_wr_mbox_meat - send a command to FW through the given mailbox
210 * @adap: the adapter
211 * @mbox: index of the mailbox to use
212 * @cmd: the command to write
213 * @size: command length in bytes
214 * @rpl: where to optionally store the reply
215 * @sleep_ok: if true we may sleep while awaiting command completion
216 *
217 * Sends the given command to FW through the selected mailbox and waits
218 * for the FW to execute the command. If @rpl is not %NULL it is used to
219 * store the FW's reply to the command. The command and its optional
220 * reply are of the same length. Some FW commands like RESET and
221 * INITIALIZE can take a considerable amount of time to execute.
222 * @sleep_ok determines whether we may sleep while awaiting the response.
223 * If sleeping is allowed we use progressive backoff otherwise we spin.
224 *
225 * The return value is 0 on success or a negative errno on failure. A
226 * failure can happen either because we are not able to execute the
227 * command or FW executes it but signals an error. In the latter case
228 * the return value is the error code indicated by FW (negated).
229 */
230int t4_wr_mbox_meat(struct adapter *adap, int mbox, const void *cmd, int size,
231 void *rpl, bool sleep_ok)
232{
233 /*
234 * We delay in small increments at first in an effort to maintain
235 * responsiveness for simple, fast executing commands but then back
236 * off to larger delays to a maximum retry delay.
237 */
238 static const int delay[] = {
239 1, 1, 3, 5, 10, 10, 20, 50, 100
240 };
241
242 u32 v;
243 u64 res;
244 int i, ms, delay_idx;
245 const __be64 *p = cmd;
246 u32 data_reg = PF_REG(mbox, A_CIM_PF_MAILBOX_DATA);
247 u32 ctl_reg = PF_REG(mbox, A_CIM_PF_MAILBOX_CTRL);
248
249 if ((size & 15) || size > MBOX_LEN)
250 return -EINVAL;
251
252 v = G_MBOWNER(t4_read_reg(adap, ctl_reg));
253 for (i = 0; v == X_MBOWNER_NONE && i < 3; i++)
254 v = G_MBOWNER(t4_read_reg(adap, ctl_reg));
255
256 if (v != X_MBOWNER_PL)
257 return v ? -EBUSY : -ETIMEDOUT;
258
259 for (i = 0; i < size; i += 8, p++)
260 t4_write_reg64(adap, data_reg + i, be64_to_cpu(*p));
261
262 t4_write_reg(adap, ctl_reg, F_MBMSGVALID | V_MBOWNER(X_MBOWNER_FW));
263 t4_read_reg(adap, ctl_reg); /* flush write */
264
265 delay_idx = 0;
266 ms = delay[0];
267
268 for (i = 0; i < FW_CMD_MAX_TIMEOUT; i += ms) {
269 if (sleep_ok) {
270 ms = delay[delay_idx]; /* last element may repeat */
271 if (delay_idx < ARRAY_SIZE(delay) - 1)
272 delay_idx++;
273 msleep(ms);
274 } else
275 mdelay(ms);
276
277 v = t4_read_reg(adap, ctl_reg);
278 if (v == X_CIM_PF_NOACCESS)
279 continue;
280 if (G_MBOWNER(v) == X_MBOWNER_PL) {
281 if (!(v & F_MBMSGVALID)) {
282 t4_write_reg(adap, ctl_reg,
283 V_MBOWNER(X_MBOWNER_NONE));
284 continue;
285 }
286
287 res = t4_read_reg64(adap, data_reg);
288 if (G_FW_CMD_OP(res >> 32) == FW_DEBUG_CMD) {
289 fw_asrt(adap, data_reg);
290 res = V_FW_CMD_RETVAL(EIO);
291 } else if (rpl)
292 get_mbox_rpl(adap, rpl, size / 8, data_reg);
293 t4_write_reg(adap, ctl_reg, V_MBOWNER(X_MBOWNER_NONE));
294 return -G_FW_CMD_RETVAL((int)res);
295 }
296 }
297
298 /*
299 * We timed out waiting for a reply to our mailbox command. Report
300 * the error and also check to see if the firmware reported any
301 * errors ...
302 */
303 CH_ERR(adap, "command %#x in mailbox %d timed out\n",
304 *(const u8 *)cmd, mbox);
305 if (t4_read_reg(adap, A_PCIE_FW) & F_PCIE_FW_ERR)
306 t4_report_fw_error(adap);
307 return -ETIMEDOUT;
308}
309
310/**
311 * t4_mc_read - read from MC through backdoor accesses
312 * @adap: the adapter
313 * @idx: which MC to access
314 * @addr: address of first byte requested
315 * @data: 64 bytes of data containing the requested address
316 * @ecc: where to store the corresponding 64-bit ECC word
317 *
318 * Read 64 bytes of data from MC starting at a 64-byte-aligned address
319 * that covers the requested address @addr. If @parity is not %NULL it
320 * is assigned the 64-bit ECC word for the read data.
321 */
322int t4_mc_read(struct adapter *adap, int idx, u32 addr, __be32 *data, u64 *ecc)
323{
324 int i;
325 u32 mc_bist_cmd_reg, mc_bist_cmd_addr_reg, mc_bist_cmd_len_reg;
326 u32 mc_bist_status_rdata_reg, mc_bist_data_pattern_reg;
327
328 if (is_t4(adap)) {
329 mc_bist_cmd_reg = A_MC_BIST_CMD;
330 mc_bist_cmd_addr_reg = A_MC_BIST_CMD_ADDR;
331 mc_bist_cmd_len_reg = A_MC_BIST_CMD_LEN;
332 mc_bist_status_rdata_reg = A_MC_BIST_STATUS_RDATA;
333 mc_bist_data_pattern_reg = A_MC_BIST_DATA_PATTERN;
334 } else {
335 mc_bist_cmd_reg = MC_REG(A_MC_P_BIST_CMD, idx);
336 mc_bist_cmd_addr_reg = MC_REG(A_MC_P_BIST_CMD_ADDR, idx);
337 mc_bist_cmd_len_reg = MC_REG(A_MC_P_BIST_CMD_LEN, idx);
338 mc_bist_status_rdata_reg = MC_REG(A_MC_P_BIST_STATUS_RDATA,
339 idx);
340 mc_bist_data_pattern_reg = MC_REG(A_MC_P_BIST_DATA_PATTERN,
341 idx);
342 }
343
344 if (t4_read_reg(adap, mc_bist_cmd_reg) & F_START_BIST)
345 return -EBUSY;
346 t4_write_reg(adap, mc_bist_cmd_addr_reg, addr & ~0x3fU);
347 t4_write_reg(adap, mc_bist_cmd_len_reg, 64);
348 t4_write_reg(adap, mc_bist_data_pattern_reg, 0xc);
349 t4_write_reg(adap, mc_bist_cmd_reg, V_BIST_OPCODE(1) |
350 F_START_BIST | V_BIST_CMD_GAP(1));
351 i = t4_wait_op_done(adap, mc_bist_cmd_reg, F_START_BIST, 0, 10, 1);
352 if (i)
353 return i;
354
355#define MC_DATA(i) MC_BIST_STATUS_REG(mc_bist_status_rdata_reg, i)
356
357 for (i = 15; i >= 0; i--)
358 *data++ = ntohl(t4_read_reg(adap, MC_DATA(i)));
359 if (ecc)
360 *ecc = t4_read_reg64(adap, MC_DATA(16));
361#undef MC_DATA
362 return 0;
363}
364
365/**
366 * t4_edc_read - read from EDC through backdoor accesses
367 * @adap: the adapter
368 * @idx: which EDC to access
369 * @addr: address of first byte requested
370 * @data: 64 bytes of data containing the requested address
371 * @ecc: where to store the corresponding 64-bit ECC word
372 *
373 * Read 64 bytes of data from EDC starting at a 64-byte-aligned address
374 * that covers the requested address @addr. If @parity is not %NULL it
375 * is assigned the 64-bit ECC word for the read data.
376 */
377int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data, u64 *ecc)
378{
379 int i;
380 u32 edc_bist_cmd_reg, edc_bist_cmd_addr_reg, edc_bist_cmd_len_reg;
381 u32 edc_bist_cmd_data_pattern, edc_bist_status_rdata_reg;
382
383 if (is_t4(adap)) {
384 edc_bist_cmd_reg = EDC_REG(A_EDC_BIST_CMD, idx);
385 edc_bist_cmd_addr_reg = EDC_REG(A_EDC_BIST_CMD_ADDR, idx);
386 edc_bist_cmd_len_reg = EDC_REG(A_EDC_BIST_CMD_LEN, idx);
387 edc_bist_cmd_data_pattern = EDC_REG(A_EDC_BIST_DATA_PATTERN,
388 idx);
389 edc_bist_status_rdata_reg = EDC_REG(A_EDC_BIST_STATUS_RDATA,
390 idx);
391 } else {
392/*
393 * These macro are missing in t4_regs.h file.
394 * Added temporarily for testing.
395 */
396#define EDC_STRIDE_T5 (EDC_T51_BASE_ADDR - EDC_T50_BASE_ADDR)
397#define EDC_REG_T5(reg, idx) (reg + EDC_STRIDE_T5 * idx)
398 edc_bist_cmd_reg = EDC_REG_T5(A_EDC_H_BIST_CMD, idx);
399 edc_bist_cmd_addr_reg = EDC_REG_T5(A_EDC_H_BIST_CMD_ADDR, idx);
400 edc_bist_cmd_len_reg = EDC_REG_T5(A_EDC_H_BIST_CMD_LEN, idx);
401 edc_bist_cmd_data_pattern = EDC_REG_T5(A_EDC_H_BIST_DATA_PATTERN,
402 idx);
403 edc_bist_status_rdata_reg = EDC_REG_T5(A_EDC_H_BIST_STATUS_RDATA,
404 idx);
405#undef EDC_REG_T5
406#undef EDC_STRIDE_T5
407 }
408
409 if (t4_read_reg(adap, edc_bist_cmd_reg) & F_START_BIST)
410 return -EBUSY;
411 t4_write_reg(adap, edc_bist_cmd_addr_reg, addr & ~0x3fU);
412 t4_write_reg(adap, edc_bist_cmd_len_reg, 64);
413 t4_write_reg(adap, edc_bist_cmd_data_pattern, 0xc);
414 t4_write_reg(adap, edc_bist_cmd_reg,
415 V_BIST_OPCODE(1) | V_BIST_CMD_GAP(1) | F_START_BIST);
416 i = t4_wait_op_done(adap, edc_bist_cmd_reg, F_START_BIST, 0, 10, 1);
417 if (i)
418 return i;
419
420#define EDC_DATA(i) EDC_BIST_STATUS_REG(edc_bist_status_rdata_reg, i)
421
422 for (i = 15; i >= 0; i--)
423 *data++ = ntohl(t4_read_reg(adap, EDC_DATA(i)));
424 if (ecc)
425 *ecc = t4_read_reg64(adap, EDC_DATA(16));
426#undef EDC_DATA
427 return 0;
428}
429
430/**
431 * t4_mem_read - read EDC 0, EDC 1 or MC into buffer
432 * @adap: the adapter
433 * @mtype: memory type: MEM_EDC0, MEM_EDC1 or MEM_MC
434 * @addr: address within indicated memory type
435 * @len: amount of memory to read
436 * @buf: host memory buffer
437 *
438 * Reads an [almost] arbitrary memory region in the firmware: the
439 * firmware memory address, length and host buffer must be aligned on
440 * 32-bit boudaries. The memory is returned as a raw byte sequence from
441 * the firmware's memory. If this memory contains data structures which
442 * contain multi-byte integers, it's the callers responsibility to
443 * perform appropriate byte order conversions.
444 */
445int t4_mem_read(struct adapter *adap, int mtype, u32 addr, u32 len,
446 __be32 *buf)
447{
448 u32 pos, start, end, offset;
449 int ret;
450
451 /*
452 * Argument sanity checks ...
453 */
454 if ((addr & 0x3) || (len & 0x3))
455 return -EINVAL;
456
457 /*
458 * The underlaying EDC/MC read routines read 64 bytes at a time so we
459 * need to round down the start and round up the end. We'll start
460 * copying out of the first line at (addr - start) a word at a time.
461 */
462 start = addr & ~(64-1);
463 end = (addr + len + 64-1) & ~(64-1);
464 offset = (addr - start)/sizeof(__be32);
465
466 for (pos = start; pos < end; pos += 64, offset = 0) {
467 __be32 data[16];
468
469 /*
470 * Read the chip's memory block and bail if there's an error.
471 */
472 if ((mtype == MEM_MC) || (mtype == MEM_MC1))
473 ret = t4_mc_read(adap, mtype - MEM_MC, pos, data, NULL);
474 else
475 ret = t4_edc_read(adap, mtype, pos, data, NULL);
476 if (ret)
477 return ret;
478
479 /*
480 * Copy the data into the caller's memory buffer.
481 */
482 while (offset < 16 && len > 0) {
483 *buf++ = data[offset++];
484 len -= sizeof(__be32);
485 }
486 }
487
488 return 0;
489}
490
491/*
492 * Partial EEPROM Vital Product Data structure. Includes only the ID and
493 * VPD-R header.
494 */
495struct t4_vpd_hdr {
496 u8 id_tag;
497 u8 id_len[2];
498 u8 id_data[ID_LEN];
499 u8 vpdr_tag;
500 u8 vpdr_len[2];
501};
502
503/*
504 * EEPROM reads take a few tens of us while writes can take a bit over 5 ms.
505 */
506#define EEPROM_MAX_RD_POLL 40
507#define EEPROM_MAX_WR_POLL 6
508#define EEPROM_STAT_ADDR 0x7bfc
509#define VPD_BASE 0x400
510#define VPD_BASE_OLD 0
511#define VPD_LEN 1024
512#define VPD_INFO_FLD_HDR_SIZE 3
513#define CHELSIO_VPD_UNIQUE_ID 0x82
514
515/**
516 * t4_seeprom_read - read a serial EEPROM location
517 * @adapter: adapter to read
518 * @addr: EEPROM virtual address
519 * @data: where to store the read data
520 *
521 * Read a 32-bit word from a location in serial EEPROM using the card's PCI
522 * VPD capability. Note that this function must be called with a virtual
523 * address.
524 */
525int t4_seeprom_read(struct adapter *adapter, u32 addr, u32 *data)
526{
527 u16 val;
528 int attempts = EEPROM_MAX_RD_POLL;
529 unsigned int base = adapter->params.pci.vpd_cap_addr;
530
531 if (addr >= EEPROMVSIZE || (addr & 3))
532 return -EINVAL;
533
534 t4_os_pci_write_cfg2(adapter, base + PCI_VPD_ADDR, (u16)addr);
535 do {
536 udelay(10);
537 t4_os_pci_read_cfg2(adapter, base + PCI_VPD_ADDR, &val);
538 } while (!(val & PCI_VPD_ADDR_F) && --attempts);
539
540 if (!(val & PCI_VPD_ADDR_F)) {
541 CH_ERR(adapter, "reading EEPROM address 0x%x failed\n", addr);
542 return -EIO;
543 }
544 t4_os_pci_read_cfg4(adapter, base + PCI_VPD_DATA, data);
545 *data = le32_to_cpu(*data);
546 return 0;
547}
548
549/**
550 * t4_seeprom_write - write a serial EEPROM location
551 * @adapter: adapter to write
552 * @addr: virtual EEPROM address
553 * @data: value to write
554 *
555 * Write a 32-bit word to a location in serial EEPROM using the card's PCI
556 * VPD capability. Note that this function must be called with a virtual
557 * address.
558 */
559int t4_seeprom_write(struct adapter *adapter, u32 addr, u32 data)
560{
561 u16 val;
562 int attempts = EEPROM_MAX_WR_POLL;
563 unsigned int base = adapter->params.pci.vpd_cap_addr;
564
565 if (addr >= EEPROMVSIZE || (addr & 3))
566 return -EINVAL;
567
568 t4_os_pci_write_cfg4(adapter, base + PCI_VPD_DATA,
569 cpu_to_le32(data));
570 t4_os_pci_write_cfg2(adapter, base + PCI_VPD_ADDR,
571 (u16)addr | PCI_VPD_ADDR_F);
572 do {
573 msleep(1);
574 t4_os_pci_read_cfg2(adapter, base + PCI_VPD_ADDR, &val);
575 } while ((val & PCI_VPD_ADDR_F) && --attempts);
576
577 if (val & PCI_VPD_ADDR_F) {
578 CH_ERR(adapter, "write to EEPROM address 0x%x failed\n", addr);
579 return -EIO;
580 }
581 return 0;
582}
583
584/**
585 * t4_eeprom_ptov - translate a physical EEPROM address to virtual
586 * @phys_addr: the physical EEPROM address
587 * @fn: the PCI function number
588 * @sz: size of function-specific area
589 *
590 * Translate a physical EEPROM address to virtual. The first 1K is
591 * accessed through virtual addresses starting at 31K, the rest is
592 * accessed through virtual addresses starting at 0.
593 *
594 * The mapping is as follows:
595 * [0..1K) -> [31K..32K)
596 * [1K..1K+A) -> [ES-A..ES)
597 * [1K+A..ES) -> [0..ES-A-1K)
598 *
599 * where A = @fn * @sz, and ES = EEPROM size.
600 */
601int t4_eeprom_ptov(unsigned int phys_addr, unsigned int fn, unsigned int sz)
602{
603 fn *= sz;
604 if (phys_addr < 1024)
605 return phys_addr + (31 << 10);
606 if (phys_addr < 1024 + fn)
607 return EEPROMSIZE - fn + phys_addr - 1024;
608 if (phys_addr < EEPROMSIZE)
609 return phys_addr - 1024 - fn;
610 return -EINVAL;
611}
612
613/**
614 * t4_seeprom_wp - enable/disable EEPROM write protection
615 * @adapter: the adapter
616 * @enable: whether to enable or disable write protection
617 *
618 * Enables or disables write protection on the serial EEPROM.
619 */
620int t4_seeprom_wp(struct adapter *adapter, int enable)
621{
622 return t4_seeprom_write(adapter, EEPROM_STAT_ADDR, enable ? 0xc : 0);
623}
624
625/**
626 * get_vpd_keyword_val - Locates an information field keyword in the VPD
627 * @v: Pointer to buffered vpd data structure
628 * @kw: The keyword to search for
629 *
630 * Returns the value of the information field keyword or
631 * -ENOENT otherwise.
632 */
633static int get_vpd_keyword_val(const struct t4_vpd_hdr *v, const char *kw)
634{
635 int i;
636 unsigned int offset , len;
637 const u8 *buf = &v->id_tag;
638 const u8 *vpdr_len = &v->vpdr_tag;
639 offset = sizeof(struct t4_vpd_hdr);
640 len = (u16)vpdr_len[1] + ((u16)vpdr_len[2] << 8);
641
642 if (len + sizeof(struct t4_vpd_hdr) > VPD_LEN) {
643 return -ENOENT;
644 }
645
646 for (i = offset; i + VPD_INFO_FLD_HDR_SIZE <= offset + len;) {
647 if(memcmp(buf + i , kw , 2) == 0){
648 i += VPD_INFO_FLD_HDR_SIZE;
649 return i;
650 }
651
652 i += VPD_INFO_FLD_HDR_SIZE + buf[i+2];
653 }
654
655 return -ENOENT;
656}
657
658
659/**
660 * get_vpd_params - read VPD parameters from VPD EEPROM
661 * @adapter: adapter to read
662 * @p: where to store the parameters
663 *
664 * Reads card parameters stored in VPD EEPROM.
665 */
666static int get_vpd_params(struct adapter *adapter, struct vpd_params *p)
667{
668 int i, ret, addr;
669 int ec, sn, pn, na;
670 u8 vpd[VPD_LEN], csum;
671 const struct t4_vpd_hdr *v;
672
673 /*
674 * Card information normally starts at VPD_BASE but early cards had
675 * it at 0.
676 */
677 ret = t4_seeprom_read(adapter, VPD_BASE, (u32 *)(vpd));
678 addr = *vpd == CHELSIO_VPD_UNIQUE_ID ? VPD_BASE : VPD_BASE_OLD;
679
680 for (i = 0; i < sizeof(vpd); i += 4) {
681 ret = t4_seeprom_read(adapter, addr + i, (u32 *)(vpd + i));
682 if (ret)
683 return ret;
684 }
685 v = (const struct t4_vpd_hdr *)vpd;
686
687#define FIND_VPD_KW(var,name) do { \
688 var = get_vpd_keyword_val(v , name); \
689 if (var < 0) { \
690 CH_ERR(adapter, "missing VPD keyword " name "\n"); \
691 return -EINVAL; \
692 } \
693} while (0)
694
695 FIND_VPD_KW(i, "RV");
696 for (csum = 0; i >= 0; i--)
697 csum += vpd[i];
698
699 if (csum) {
700 CH_ERR(adapter, "corrupted VPD EEPROM, actual csum %u\n", csum);
701 return -EINVAL;
702 }
703 FIND_VPD_KW(ec, "EC");
704 FIND_VPD_KW(sn, "SN");
705 FIND_VPD_KW(pn, "PN");
706 FIND_VPD_KW(na, "NA");
707#undef FIND_VPD_KW
708
709 memcpy(p->id, v->id_data, ID_LEN);
710 strstrip(p->id);
711 memcpy(p->ec, vpd + ec, EC_LEN);
712 strstrip(p->ec);
713 i = vpd[sn - VPD_INFO_FLD_HDR_SIZE + 2];
714 memcpy(p->sn, vpd + sn, min(i, SERNUM_LEN));
715 strstrip(p->sn);
716 i = vpd[pn - VPD_INFO_FLD_HDR_SIZE + 2];
717 memcpy(p->pn, vpd + pn, min(i, PN_LEN));
718 strstrip((char *)p->pn);
719 i = vpd[na - VPD_INFO_FLD_HDR_SIZE + 2];
720 memcpy(p->na, vpd + na, min(i, MACADDR_LEN));
721 strstrip((char *)p->na);
722
723 return 0;
724}
725
726/* serial flash and firmware constants and flash config file constants */
727enum {
728 SF_ATTEMPTS = 10, /* max retries for SF operations */
729
730 /* flash command opcodes */
731 SF_PROG_PAGE = 2, /* program page */
732 SF_WR_DISABLE = 4, /* disable writes */
733 SF_RD_STATUS = 5, /* read status register */
734 SF_WR_ENABLE = 6, /* enable writes */
735 SF_RD_DATA_FAST = 0xb, /* read flash */
736 SF_RD_ID = 0x9f, /* read ID */
737 SF_ERASE_SECTOR = 0xd8, /* erase sector */
738};
739
740/**
741 * sf1_read - read data from the serial flash
742 * @adapter: the adapter
743 * @byte_cnt: number of bytes to read
744 * @cont: whether another operation will be chained
745 * @lock: whether to lock SF for PL access only
746 * @valp: where to store the read data
747 *
748 * Reads up to 4 bytes of data from the serial flash. The location of
749 * the read needs to be specified prior to calling this by issuing the
750 * appropriate commands to the serial flash.
751 */
752static int sf1_read(struct adapter *adapter, unsigned int byte_cnt, int cont,
753 int lock, u32 *valp)
754{
755 int ret;
756
757 if (!byte_cnt || byte_cnt > 4)
758 return -EINVAL;
759 if (t4_read_reg(adapter, A_SF_OP) & F_BUSY)
760 return -EBUSY;
761 t4_write_reg(adapter, A_SF_OP,
762 V_SF_LOCK(lock) | V_CONT(cont) | V_BYTECNT(byte_cnt - 1));
763 ret = t4_wait_op_done(adapter, A_SF_OP, F_BUSY, 0, SF_ATTEMPTS, 5);
764 if (!ret)
765 *valp = t4_read_reg(adapter, A_SF_DATA);
766 return ret;
767}
768
769/**
770 * sf1_write - write data to the serial flash
771 * @adapter: the adapter
772 * @byte_cnt: number of bytes to write
773 * @cont: whether another operation will be chained
774 * @lock: whether to lock SF for PL access only
775 * @val: value to write
776 *
777 * Writes up to 4 bytes of data to the serial flash. The location of
778 * the write needs to be specified prior to calling this by issuing the
779 * appropriate commands to the serial flash.
780 */
781static int sf1_write(struct adapter *adapter, unsigned int byte_cnt, int cont,
782 int lock, u32 val)
783{
784 if (!byte_cnt || byte_cnt > 4)
785 return -EINVAL;
786 if (t4_read_reg(adapter, A_SF_OP) & F_BUSY)
787 return -EBUSY;
788 t4_write_reg(adapter, A_SF_DATA, val);
789 t4_write_reg(adapter, A_SF_OP, V_SF_LOCK(lock) |
790 V_CONT(cont) | V_BYTECNT(byte_cnt - 1) | V_OP(1));
791 return t4_wait_op_done(adapter, A_SF_OP, F_BUSY, 0, SF_ATTEMPTS, 5);
792}
793
794/**
795 * flash_wait_op - wait for a flash operation to complete
796 * @adapter: the adapter
797 * @attempts: max number of polls of the status register
798 * @delay: delay between polls in ms
799 *
800 * Wait for a flash operation to complete by polling the status register.
801 */
802static int flash_wait_op(struct adapter *adapter, int attempts, int delay)
803{
804 int ret;
805 u32 status;
806
807 while (1) {
808 if ((ret = sf1_write(adapter, 1, 1, 1, SF_RD_STATUS)) != 0 ||
809 (ret = sf1_read(adapter, 1, 0, 1, &status)) != 0)
810 return ret;
811 if (!(status & 1))
812 return 0;
813 if (--attempts == 0)
814 return -EAGAIN;
815 if (delay)
816 msleep(delay);
817 }
818}
819
820/**
821 * t4_read_flash - read words from serial flash
822 * @adapter: the adapter
823 * @addr: the start address for the read
824 * @nwords: how many 32-bit words to read
825 * @data: where to store the read data
826 * @byte_oriented: whether to store data as bytes or as words
827 *
828 * Read the specified number of 32-bit words from the serial flash.
829 * If @byte_oriented is set the read data is stored as a byte array
830 * (i.e., big-endian), otherwise as 32-bit words in the platform's
831 * natural endianess.
832 */
833int t4_read_flash(struct adapter *adapter, unsigned int addr,
834 unsigned int nwords, u32 *data, int byte_oriented)
835{
836 int ret;
837
838 if (addr + nwords * sizeof(u32) > adapter->params.sf_size || (addr & 3))
839 return -EINVAL;
840
841 addr = swab32(addr) | SF_RD_DATA_FAST;
842
843 if ((ret = sf1_write(adapter, 4, 1, 0, addr)) != 0 ||
844 (ret = sf1_read(adapter, 1, 1, 0, data)) != 0)
845 return ret;
846
847 for ( ; nwords; nwords--, data++) {
848 ret = sf1_read(adapter, 4, nwords > 1, nwords == 1, data);
849 if (nwords == 1)
850 t4_write_reg(adapter, A_SF_OP, 0); /* unlock SF */
851 if (ret)
852 return ret;
853 if (byte_oriented)
854 *data = htonl(*data);
855 }
856 return 0;
857}
858
859/**
860 * t4_write_flash - write up to a page of data to the serial flash
861 * @adapter: the adapter
862 * @addr: the start address to write
863 * @n: length of data to write in bytes
864 * @data: the data to write
865 * @byte_oriented: whether to store data as bytes or as words
866 *
867 * Writes up to a page of data (256 bytes) to the serial flash starting
868 * at the given address. All the data must be written to the same page.
869 * If @byte_oriented is set the write data is stored as byte stream
870 * (i.e. matches what on disk), otherwise in big-endian.
871 */
872static int t4_write_flash(struct adapter *adapter, unsigned int addr,
873 unsigned int n, const u8 *data, int byte_oriented)
874{
875 int ret;
876 u32 buf[SF_PAGE_SIZE / 4];
877 unsigned int i, c, left, val, offset = addr & 0xff;
878
879 if (addr >= adapter->params.sf_size || offset + n > SF_PAGE_SIZE)
880 return -EINVAL;
881
882 val = swab32(addr) | SF_PROG_PAGE;
883
884 if ((ret = sf1_write(adapter, 1, 0, 1, SF_WR_ENABLE)) != 0 ||
885 (ret = sf1_write(adapter, 4, 1, 1, val)) != 0)
886 goto unlock;
887
888 for (left = n; left; left -= c) {
889 c = min(left, 4U);
890 for (val = 0, i = 0; i < c; ++i)
891 val = (val << 8) + *data++;
892
893 if (!byte_oriented)
894 val = htonl(val);
895
896 ret = sf1_write(adapter, c, c != left, 1, val);
897 if (ret)
898 goto unlock;
899 }
900 ret = flash_wait_op(adapter, 8, 1);
901 if (ret)
902 goto unlock;
903
904 t4_write_reg(adapter, A_SF_OP, 0); /* unlock SF */
905
906 /* Read the page to verify the write succeeded */
907 ret = t4_read_flash(adapter, addr & ~0xff, ARRAY_SIZE(buf), buf,
908 byte_oriented);
909 if (ret)
910 return ret;
911
912 if (memcmp(data - n, (u8 *)buf + offset, n)) {
913 CH_ERR(adapter, "failed to correctly write the flash page "
914 "at %#x\n", addr);
915 return -EIO;
916 }
917 return 0;
918
919unlock:
920 t4_write_reg(adapter, A_SF_OP, 0); /* unlock SF */
921 return ret;
922}
923
924/**
925 * t4_get_fw_version - read the firmware version
926 * @adapter: the adapter
927 * @vers: where to place the version
928 *
929 * Reads the FW version from flash.
930 */
931int t4_get_fw_version(struct adapter *adapter, u32 *vers)
932{
933 return t4_read_flash(adapter,
934 FLASH_FW_START + offsetof(struct fw_hdr, fw_ver), 1,
935 vers, 0);
936}
937
938/**
939 * t4_get_tp_version - read the TP microcode version
940 * @adapter: the adapter
941 * @vers: where to place the version
942 *
943 * Reads the TP microcode version from flash.
944 */
945int t4_get_tp_version(struct adapter *adapter, u32 *vers)
946{
947 return t4_read_flash(adapter, FLASH_FW_START + offsetof(struct fw_hdr,
948 tp_microcode_ver),
949 1, vers, 0);
950}
951
952/**
953 * t4_check_fw_version - check if the FW is compatible with this driver
954 * @adapter: the adapter
955 *
956 * Checks if an adapter's FW is compatible with the driver. Returns 0
957 * if there's exact match, a negative error if the version could not be
958 * read or there's a major version mismatch, and a positive value if the
959 * expected major version is found but there's a minor version mismatch.
960 */
961int t4_check_fw_version(struct adapter *adapter)
962{
963 int ret, major, minor, micro;
964 int exp_major, exp_minor, exp_micro;
965
966 ret = t4_get_fw_version(adapter, &adapter->params.fw_vers);
967 if (!ret)
968 ret = t4_get_tp_version(adapter, &adapter->params.tp_vers);
969 if (ret)
970 return ret;
971
972 major = G_FW_HDR_FW_VER_MAJOR(adapter->params.fw_vers);
973 minor = G_FW_HDR_FW_VER_MINOR(adapter->params.fw_vers);
974 micro = G_FW_HDR_FW_VER_MICRO(adapter->params.fw_vers);
975
976 switch (chip_id(adapter)) {
977 case CHELSIO_T4:
978 exp_major = T4FW_VERSION_MAJOR;
979 exp_minor = T4FW_VERSION_MINOR;
980 exp_micro = T4FW_VERSION_MICRO;
981 break;
982 case CHELSIO_T5:
983 exp_major = T5FW_VERSION_MAJOR;
984 exp_minor = T5FW_VERSION_MINOR;
985 exp_micro = T5FW_VERSION_MICRO;
986 break;
987 default:
988 CH_ERR(adapter, "Unsupported chip type, %x\n",
989 chip_id(adapter));
990 return -EINVAL;
991 }
992
993 if (major != exp_major) { /* major mismatch - fail */
994 CH_ERR(adapter, "card FW has major version %u, driver wants "
995 "%u\n", major, exp_major);
996 return -EINVAL;
997 }
998
999 if (minor == exp_minor && micro == exp_micro)
1000 return 0; /* perfect match */
1001
1002 /* Minor/micro version mismatch. Report it but often it's OK. */
1003 return 1;
1004}
1005
1006/**
1007 * t4_flash_erase_sectors - erase a range of flash sectors
1008 * @adapter: the adapter
1009 * @start: the first sector to erase
1010 * @end: the last sector to erase
1011 *
1012 * Erases the sectors in the given inclusive range.
1013 */
1014static int t4_flash_erase_sectors(struct adapter *adapter, int start, int end)
1015{
1016 int ret = 0;
1017
1018 while (start <= end) {
1019 if ((ret = sf1_write(adapter, 1, 0, 1, SF_WR_ENABLE)) != 0 ||
1020 (ret = sf1_write(adapter, 4, 0, 1,
1021 SF_ERASE_SECTOR | (start << 8))) != 0 ||
1022 (ret = flash_wait_op(adapter, 14, 500)) != 0) {
1023 CH_ERR(adapter, "erase of flash sector %d failed, "
1024 "error %d\n", start, ret);
1025 break;
1026 }
1027 start++;
1028 }
1029 t4_write_reg(adapter, A_SF_OP, 0); /* unlock SF */
1030 return ret;
1031}
1032
1033/**
1034 * t4_flash_cfg_addr - return the address of the flash configuration file
1035 * @adapter: the adapter
1036 *
1037 * Return the address within the flash where the Firmware Configuration
1038 * File is stored, or an error if the device FLASH is too small to contain
1039 * a Firmware Configuration File.
1040 */
1041int t4_flash_cfg_addr(struct adapter *adapter)
1042{
1043 /*
1044 * If the device FLASH isn't large enough to hold a Firmware
1045 * Configuration File, return an error.
1046 */
1047 if (adapter->params.sf_size < FLASH_CFG_START + FLASH_CFG_MAX_SIZE)
1048 return -ENOSPC;
1049
1050 return FLASH_CFG_START;
1051}
1052
1053/**
1054 * t4_load_cfg - download config file
1055 * @adap: the adapter
1056 * @cfg_data: the cfg text file to write
1057 * @size: text file size
1058 *
1059 * Write the supplied config text file to the card's serial flash.
1060 */
1061int t4_load_cfg(struct adapter *adap, const u8 *cfg_data, unsigned int size)
1062{
1063 int ret, i, n, cfg_addr;
1064 unsigned int addr;
1065 unsigned int flash_cfg_start_sec;
1066 unsigned int sf_sec_size = adap->params.sf_size / adap->params.sf_nsec;
1067
1068 cfg_addr = t4_flash_cfg_addr(adap);
1069 if (cfg_addr < 0)
1070 return cfg_addr;
1071
1072 addr = cfg_addr;
1073 flash_cfg_start_sec = addr / SF_SEC_SIZE;
1074
1075 if (size > FLASH_CFG_MAX_SIZE) {
1076 CH_ERR(adap, "cfg file too large, max is %u bytes\n",
1077 FLASH_CFG_MAX_SIZE);
1078 return -EFBIG;
1079 }
1080
1081 i = DIV_ROUND_UP(FLASH_CFG_MAX_SIZE, /* # of sectors spanned */
1082 sf_sec_size);
1083 ret = t4_flash_erase_sectors(adap, flash_cfg_start_sec,
1084 flash_cfg_start_sec + i - 1);
1085 /*
1086 * If size == 0 then we're simply erasing the FLASH sectors associated
1087 * with the on-adapter Firmware Configuration File.
1088 */
1089 if (ret || size == 0)
1090 goto out;
1091
1092 /* this will write to the flash up to SF_PAGE_SIZE at a time */
1093 for (i = 0; i< size; i+= SF_PAGE_SIZE) {
1094 if ( (size - i) < SF_PAGE_SIZE)
1095 n = size - i;
1096 else
1097 n = SF_PAGE_SIZE;
1098 ret = t4_write_flash(adap, addr, n, cfg_data, 1);
1099 if (ret)
1100 goto out;
1101
1102 addr += SF_PAGE_SIZE;
1103 cfg_data += SF_PAGE_SIZE;
1104 }
1105
1106out:
1107 if (ret)
1108 CH_ERR(adap, "config file %s failed %d\n",
1109 (size == 0 ? "clear" : "download"), ret);
1110 return ret;
1111}
1112
1113
1114/**
1115 * t4_load_fw - download firmware
1116 * @adap: the adapter
1117 * @fw_data: the firmware image to write
1118 * @size: image size
1119 *
1120 * Write the supplied firmware image to the card's serial flash.
1121 */
1122int t4_load_fw(struct adapter *adap, const u8 *fw_data, unsigned int size)
1123{
1124 u32 csum;
1125 int ret, addr;
1126 unsigned int i;
1127 u8 first_page[SF_PAGE_SIZE];
1128 const u32 *p = (const u32 *)fw_data;
1129 const struct fw_hdr *hdr = (const struct fw_hdr *)fw_data;
1130 unsigned int sf_sec_size = adap->params.sf_size / adap->params.sf_nsec;
1131 unsigned int fw_start_sec;
1132 unsigned int fw_start;
1133 unsigned int fw_size;
1134
1135 if (ntohl(hdr->magic) == FW_HDR_MAGIC_BOOTSTRAP) {
1136 fw_start_sec = FLASH_FWBOOTSTRAP_START_SEC;
1137 fw_start = FLASH_FWBOOTSTRAP_START;
1138 fw_size = FLASH_FWBOOTSTRAP_MAX_SIZE;
1139 } else {
1140 fw_start_sec = FLASH_FW_START_SEC;
1141 fw_start = FLASH_FW_START;
1142 fw_size = FLASH_FW_MAX_SIZE;
1143 }
1144 if (!size) {
1145 CH_ERR(adap, "FW image has no data\n");
1146 return -EINVAL;
1147 }
1148 if (size & 511) {
1149 CH_ERR(adap, "FW image size not multiple of 512 bytes\n");
1150 return -EINVAL;
1151 }
1152 if (ntohs(hdr->len512) * 512 != size) {
1153 CH_ERR(adap, "FW image size differs from size in FW header\n");
1154 return -EINVAL;
1155 }
1156 if (size > fw_size) {
1157 CH_ERR(adap, "FW image too large, max is %u bytes\n", fw_size);
1158 return -EFBIG;
1159 }
1160 if ((is_t4(adap) && hdr->chip != FW_HDR_CHIP_T4) ||
1161 (is_t5(adap) && hdr->chip != FW_HDR_CHIP_T5)) {
1162 CH_ERR(adap,
1163 "FW image (%d) is not suitable for this adapter (%d)\n",
1164 hdr->chip, chip_id(adap));
1165 return -EINVAL;
1166 }
1167
1168 for (csum = 0, i = 0; i < size / sizeof(csum); i++)
1169 csum += ntohl(p[i]);
1170
1171 if (csum != 0xffffffff) {
1172 CH_ERR(adap, "corrupted firmware image, checksum %#x\n",
1173 csum);
1174 return -EINVAL;
1175 }
1176
1177 i = DIV_ROUND_UP(size, sf_sec_size); /* # of sectors spanned */
1178 ret = t4_flash_erase_sectors(adap, fw_start_sec, fw_start_sec + i - 1);
1179 if (ret)
1180 goto out;
1181
1182 /*
1183 * We write the correct version at the end so the driver can see a bad
1184 * version if the FW write fails. Start by writing a copy of the
1185 * first page with a bad version.
1186 */
1187 memcpy(first_page, fw_data, SF_PAGE_SIZE);
1188 ((struct fw_hdr *)first_page)->fw_ver = htonl(0xffffffff);
1189 ret = t4_write_flash(adap, fw_start, SF_PAGE_SIZE, first_page, 1);
1190 if (ret)
1191 goto out;
1192
1193 addr = fw_start;
1194 for (size -= SF_PAGE_SIZE; size; size -= SF_PAGE_SIZE) {
1195 addr += SF_PAGE_SIZE;
1196 fw_data += SF_PAGE_SIZE;
1197 ret = t4_write_flash(adap, addr, SF_PAGE_SIZE, fw_data, 1);
1198 if (ret)
1199 goto out;
1200 }
1201
1202 ret = t4_write_flash(adap,
1203 fw_start + offsetof(struct fw_hdr, fw_ver),
1204 sizeof(hdr->fw_ver), (const u8 *)&hdr->fw_ver, 1);
1205out:
1206 if (ret)
1207 CH_ERR(adap, "firmware download failed, error %d\n", ret);
1208 return ret;
1209}
1210
1211/* BIOS boot headers */
1212typedef struct pci_expansion_rom_header {
1213 u8 signature[2]; /* ROM Signature. Should be 0xaa55 */
1214 u8 reserved[22]; /* Reserved per processor Architecture data */
1215 u8 pcir_offset[2]; /* Offset to PCI Data Structure */
1216} pci_exp_rom_header_t; /* PCI_EXPANSION_ROM_HEADER */
1217
1218/* Legacy PCI Expansion ROM Header */
1219typedef struct legacy_pci_expansion_rom_header {
1220 u8 signature[2]; /* ROM Signature. Should be 0xaa55 */
1221 u8 size512; /* Current Image Size in units of 512 bytes */
1222 u8 initentry_point[4];
1223 u8 cksum; /* Checksum computed on the entire Image */
1224 u8 reserved[16]; /* Reserved */
1225 u8 pcir_offset[2]; /* Offset to PCI Data Struture */
1226} legacy_pci_exp_rom_header_t; /* LEGACY_PCI_EXPANSION_ROM_HEADER */
1227
1228/* EFI PCI Expansion ROM Header */
1229typedef struct efi_pci_expansion_rom_header {
1230 u8 signature[2]; // ROM signature. The value 0xaa55
1231 u8 initialization_size[2]; /* Units 512. Includes this header */
1232 u8 efi_signature[4]; /* Signature from EFI image header. 0x0EF1 */
1233 u8 efi_subsystem[2]; /* Subsystem value for EFI image header */
1234 u8 efi_machine_type[2]; /* Machine type from EFI image header */
1235 u8 compression_type[2]; /* Compression type. */
1236 /*
1237 * Compression type definition
1238 * 0x0: uncompressed
1239 * 0x1: Compressed
1240 * 0x2-0xFFFF: Reserved
1241 */
1242 u8 reserved[8]; /* Reserved */
1243 u8 efi_image_header_offset[2]; /* Offset to EFI Image */
1244 u8 pcir_offset[2]; /* Offset to PCI Data Structure */
1245} efi_pci_exp_rom_header_t; /* EFI PCI Expansion ROM Header */
1246
1247/* PCI Data Structure Format */
1248typedef struct pcir_data_structure { /* PCI Data Structure */
1249 u8 signature[4]; /* Signature. The string "PCIR" */
1250 u8 vendor_id[2]; /* Vendor Identification */
1251 u8 device_id[2]; /* Device Identification */
1252 u8 vital_product[2]; /* Pointer to Vital Product Data */
1253 u8 length[2]; /* PCIR Data Structure Length */
1254 u8 revision; /* PCIR Data Structure Revision */
1255 u8 class_code[3]; /* Class Code */
1256 u8 image_length[2]; /* Image Length. Multiple of 512B */
1257 u8 code_revision[2]; /* Revision Level of Code/Data */
1258 u8 code_type; /* Code Type. */
1259 /*
1260 * PCI Expansion ROM Code Types
1261 * 0x00: Intel IA-32, PC-AT compatible. Legacy
1262 * 0x01: Open Firmware standard for PCI. FCODE
1263 * 0x02: Hewlett-Packard PA RISC. HP reserved
1264 * 0x03: EFI Image. EFI
1265 * 0x04-0xFF: Reserved.
1266 */
1267 u8 indicator; /* Indicator. Identifies the last image in the ROM */
1268 u8 reserved[2]; /* Reserved */
1269} pcir_data_t; /* PCI__DATA_STRUCTURE */
1270
1271/* BOOT constants */
1272enum {
1273 BOOT_FLASH_BOOT_ADDR = 0x0,/* start address of boot image in flash */
1274 BOOT_SIGNATURE = 0xaa55, /* signature of BIOS boot ROM */
1275 BOOT_SIZE_INC = 512, /* image size measured in 512B chunks */
1276 BOOT_MIN_SIZE = sizeof(pci_exp_rom_header_t), /* basic header */
1277 BOOT_MAX_SIZE = 1024*BOOT_SIZE_INC, /* 1 byte * length increment */
1278 VENDOR_ID = 0x1425, /* Vendor ID */
1279 PCIR_SIGNATURE = 0x52494350 /* PCIR signature */
1280};
1281
1282/*
1283 * modify_device_id - Modifies the device ID of the Boot BIOS image
1284 * @adatper: the device ID to write.
1285 * @boot_data: the boot image to modify.
1286 *
1287 * Write the supplied device ID to the boot BIOS image.
1288 */
1289static void modify_device_id(int device_id, u8 *boot_data)
1290{
1291 legacy_pci_exp_rom_header_t *header;
1292 pcir_data_t *pcir_header;
1293 u32 cur_header = 0;
1294
1295 /*
1296 * Loop through all chained images and change the device ID's
1297 */
1298 while (1) {
1299 header = (legacy_pci_exp_rom_header_t *) &boot_data[cur_header];
1300 pcir_header = (pcir_data_t *) &boot_data[cur_header +
1301 le16_to_cpu(*(u16*)header->pcir_offset)];
1302
1303 /*
1304 * Only modify the Device ID if code type is Legacy or HP.
1305 * 0x00: Okay to modify
1306 * 0x01: FCODE. Do not be modify
1307 * 0x03: Okay to modify
1308 * 0x04-0xFF: Do not modify
1309 */
1310 if (pcir_header->code_type == 0x00) {
1311 u8 csum = 0;
1312 int i;
1313
1314 /*
1315 * Modify Device ID to match current adatper
1316 */
1317 *(u16*) pcir_header->device_id = device_id;
1318
1319 /*
1320 * Set checksum temporarily to 0.
1321 * We will recalculate it later.
1322 */
1323 header->cksum = 0x0;
1324
1325 /*
1326 * Calculate and update checksum
1327 */
1328 for (i = 0; i < (header->size512 * 512); i++)
1329 csum += (u8)boot_data[cur_header + i];
1330
1331 /*
1332 * Invert summed value to create the checksum
1333 * Writing new checksum value directly to the boot data
1334 */
1335 boot_data[cur_header + 7] = -csum;
1336
1337 } else if (pcir_header->code_type == 0x03) {
1338
1339 /*
1340 * Modify Device ID to match current adatper
1341 */
1342 *(u16*) pcir_header->device_id = device_id;
1343
1344 }
1345
1346
1347 /*
1348 * Check indicator element to identify if this is the last
1349 * image in the ROM.
1350 */
1351 if (pcir_header->indicator & 0x80)
1352 break;
1353
1354 /*
1355 * Move header pointer up to the next image in the ROM.
1356 */
1357 cur_header += header->size512 * 512;
1358 }
1359}
1360
1361/*
1362 * t4_load_boot - download boot flash
1363 * @adapter: the adapter
1364 * @boot_data: the boot image to write
1365 * @boot_addr: offset in flash to write boot_data
1366 * @size: image size
1367 *
1368 * Write the supplied boot image to the card's serial flash.
1369 * The boot image has the following sections: a 28-byte header and the
1370 * boot image.
1371 */
1372int t4_load_boot(struct adapter *adap, u8 *boot_data,
1373 unsigned int boot_addr, unsigned int size)
1374{
1375 pci_exp_rom_header_t *header;
1376 int pcir_offset ;
1377 pcir_data_t *pcir_header;
1378 int ret, addr;
1379 uint16_t device_id;
1380 unsigned int i;
1381 unsigned int boot_sector = boot_addr * 1024;
1382 unsigned int sf_sec_size = adap->params.sf_size / adap->params.sf_nsec;
1383
1384 /*
1385 * Make sure the boot image does not encroach on the firmware region
1386 */
1387 if ((boot_sector + size) >> 16 > FLASH_FW_START_SEC) {
1388 CH_ERR(adap, "boot image encroaching on firmware region\n");
1389 return -EFBIG;
1390 }
1391
1392 /*
1393 * Number of sectors spanned
1394 */
1395 i = DIV_ROUND_UP(size ? size : FLASH_BOOTCFG_MAX_SIZE,
1396 sf_sec_size);
1397 ret = t4_flash_erase_sectors(adap, boot_sector >> 16,
1398 (boot_sector >> 16) + i - 1);
1399
1400 /*
1401 * If size == 0 then we're simply erasing the FLASH sectors associated
1402 * with the on-adapter option ROM file
1403 */
1404 if (ret || (size == 0))
1405 goto out;
1406
1407 /* Get boot header */
1408 header = (pci_exp_rom_header_t *)boot_data;
1409 pcir_offset = le16_to_cpu(*(u16 *)header->pcir_offset);
1410 /* PCIR Data Structure */
1411 pcir_header = (pcir_data_t *) &boot_data[pcir_offset];
1412
1413 /*
1414 * Perform some primitive sanity testing to avoid accidentally
1415 * writing garbage over the boot sectors. We ought to check for
1416 * more but it's not worth it for now ...
1417 */
1418 if (size < BOOT_MIN_SIZE || size > BOOT_MAX_SIZE) {
1419 CH_ERR(adap, "boot image too small/large\n");
1420 return -EFBIG;
1421 }
1422
1423 /*
1424 * Check BOOT ROM header signature
1425 */
1426 if (le16_to_cpu(*(u16*)header->signature) != BOOT_SIGNATURE ) {
1427 CH_ERR(adap, "Boot image missing signature\n");
1428 return -EINVAL;
1429 }
1430
1431 /*
1432 * Check PCI header signature
1433 */
1434 if (le32_to_cpu(*(u32*)pcir_header->signature) != PCIR_SIGNATURE) {
1435 CH_ERR(adap, "PCI header missing signature\n");
1436 return -EINVAL;
1437 }
1438
1439 /*
1440 * Check Vendor ID matches Chelsio ID
1441 */
1442 if (le16_to_cpu(*(u16*)pcir_header->vendor_id) != VENDOR_ID) {
1443 CH_ERR(adap, "Vendor ID missing signature\n");
1444 return -EINVAL;
1445 }
1446
1447 /*
1448 * Retrieve adapter's device ID
1449 */
1450 t4_os_pci_read_cfg2(adap, PCI_DEVICE_ID, &device_id);
1451 /* Want to deal with PF 0 so I strip off PF 4 indicator */
1452 device_id = (device_id & 0xff) | 0x4000;
1453
1454 /*
1455 * Check PCIE Device ID
1456 */
1457 if (le16_to_cpu(*(u16*)pcir_header->device_id) != device_id) {
1458 /*
1459 * Change the device ID in the Boot BIOS image to match
1460 * the Device ID of the current adapter.
1461 */
1462 modify_device_id(device_id, boot_data);
1463 }
1464
1465 /*
1466 * Skip over the first SF_PAGE_SIZE worth of data and write it after
1467 * we finish copying the rest of the boot image. This will ensure
1468 * that the BIOS boot header will only be written if the boot image
1469 * was written in full.
1470 */
1471 addr = boot_sector;
1472 for (size -= SF_PAGE_SIZE; size; size -= SF_PAGE_SIZE) {
1473 addr += SF_PAGE_SIZE;
1474 boot_data += SF_PAGE_SIZE;
1475 ret = t4_write_flash(adap, addr, SF_PAGE_SIZE, boot_data, 0);
1476 if (ret)
1477 goto out;
1478 }
1479
1480 ret = t4_write_flash(adap, boot_sector, SF_PAGE_SIZE, boot_data, 0);
1481
1482out:
1483 if (ret)
1484 CH_ERR(adap, "boot image download failed, error %d\n", ret);
1485 return ret;
1486}
1487
1488/**
1489 * t4_read_cimq_cfg - read CIM queue configuration
1490 * @adap: the adapter
1491 * @base: holds the queue base addresses in bytes
1492 * @size: holds the queue sizes in bytes
1493 * @thres: holds the queue full thresholds in bytes
1494 *
1495 * Returns the current configuration of the CIM queues, starting with
1496 * the IBQs, then the OBQs.
1497 */
1498void t4_read_cimq_cfg(struct adapter *adap, u16 *base, u16 *size, u16 *thres)
1499{
1500 unsigned int i, v;
1501 int cim_num_obq = is_t4(adap) ? CIM_NUM_OBQ : CIM_NUM_OBQ_T5;
1502
1503 for (i = 0; i < CIM_NUM_IBQ; i++) {
1504 t4_write_reg(adap, A_CIM_QUEUE_CONFIG_REF, F_IBQSELECT |
1505 V_QUENUMSELECT(i));
1506 v = t4_read_reg(adap, A_CIM_QUEUE_CONFIG_CTRL);
1507 *base++ = G_CIMQBASE(v) * 256; /* value is in 256-byte units */
1508 *size++ = G_CIMQSIZE(v) * 256; /* value is in 256-byte units */
1509 *thres++ = G_QUEFULLTHRSH(v) * 8; /* 8-byte unit */
1510 }
1511 for (i = 0; i < cim_num_obq; i++) {
1512 t4_write_reg(adap, A_CIM_QUEUE_CONFIG_REF, F_OBQSELECT |
1513 V_QUENUMSELECT(i));
1514 v = t4_read_reg(adap, A_CIM_QUEUE_CONFIG_CTRL);
1515 *base++ = G_CIMQBASE(v) * 256; /* value is in 256-byte units */
1516 *size++ = G_CIMQSIZE(v) * 256; /* value is in 256-byte units */
1517 }
1518}
1519
1520/**
1521 * t4_read_cim_ibq - read the contents of a CIM inbound queue
1522 * @adap: the adapter
1523 * @qid: the queue index
1524 * @data: where to store the queue contents
1525 * @n: capacity of @data in 32-bit words
1526 *
1527 * Reads the contents of the selected CIM queue starting at address 0 up
1528 * to the capacity of @data. @n must be a multiple of 4. Returns < 0 on
1529 * error and the number of 32-bit words actually read on success.
1530 */
1531int t4_read_cim_ibq(struct adapter *adap, unsigned int qid, u32 *data, size_t n)
1532{
1533 int i, err;
1534 unsigned int addr;
1535 const unsigned int nwords = CIM_IBQ_SIZE * 4;
1536
1537 if (qid > 5 || (n & 3))
1538 return -EINVAL;
1539
1540 addr = qid * nwords;
1541 if (n > nwords)
1542 n = nwords;
1543
1544 for (i = 0; i < n; i++, addr++) {
1545 t4_write_reg(adap, A_CIM_IBQ_DBG_CFG, V_IBQDBGADDR(addr) |
1546 F_IBQDBGEN);
1547 /*
1548 * It might take 3-10ms before the IBQ debug read access is
1549 * allowed. Wait for 1 Sec with a delay of 1 usec.
1550 */
1551 err = t4_wait_op_done(adap, A_CIM_IBQ_DBG_CFG, F_IBQDBGBUSY, 0,
1552 1000000, 1);
1553 if (err)
1554 return err;
1555 *data++ = t4_read_reg(adap, A_CIM_IBQ_DBG_DATA);
1556 }
1557 t4_write_reg(adap, A_CIM_IBQ_DBG_CFG, 0);
1558 return i;
1559}
1560
1561/**
1562 * t4_read_cim_obq - read the contents of a CIM outbound queue
1563 * @adap: the adapter
1564 * @qid: the queue index
1565 * @data: where to store the queue contents
1566 * @n: capacity of @data in 32-bit words
1567 *
1568 * Reads the contents of the selected CIM queue starting at address 0 up
1569 * to the capacity of @data. @n must be a multiple of 4. Returns < 0 on
1570 * error and the number of 32-bit words actually read on success.
1571 */
1572int t4_read_cim_obq(struct adapter *adap, unsigned int qid, u32 *data, size_t n)
1573{
1574 int i, err;
1575 unsigned int addr, v, nwords;
1576 int cim_num_obq = is_t4(adap) ? CIM_NUM_OBQ : CIM_NUM_OBQ_T5;
1577
1578 if (qid >= cim_num_obq || (n & 3))
1579 return -EINVAL;
1580
1581 t4_write_reg(adap, A_CIM_QUEUE_CONFIG_REF, F_OBQSELECT |
1582 V_QUENUMSELECT(qid));
1583 v = t4_read_reg(adap, A_CIM_QUEUE_CONFIG_CTRL);
1584
1585 addr = G_CIMQBASE(v) * 64; /* muliple of 256 -> muliple of 4 */
1586 nwords = G_CIMQSIZE(v) * 64; /* same */
1587 if (n > nwords)
1588 n = nwords;
1589
1590 for (i = 0; i < n; i++, addr++) {
1591 t4_write_reg(adap, A_CIM_OBQ_DBG_CFG, V_OBQDBGADDR(addr) |
1592 F_OBQDBGEN);
1593 err = t4_wait_op_done(adap, A_CIM_OBQ_DBG_CFG, F_OBQDBGBUSY, 0,
1594 2, 1);
1595 if (err)
1596 return err;
1597 *data++ = t4_read_reg(adap, A_CIM_OBQ_DBG_DATA);
1598 }
1599 t4_write_reg(adap, A_CIM_OBQ_DBG_CFG, 0);
1600 return i;
1601}
1602
1603enum {
1604 CIM_QCTL_BASE = 0,
1605 CIM_CTL_BASE = 0x2000,
1606 CIM_PBT_ADDR_BASE = 0x2800,
1607 CIM_PBT_LRF_BASE = 0x3000,
1608 CIM_PBT_DATA_BASE = 0x3800
1609};
1610
1611/**
1612 * t4_cim_read - read a block from CIM internal address space
1613 * @adap: the adapter
1614 * @addr: the start address within the CIM address space
1615 * @n: number of words to read
1616 * @valp: where to store the result
1617 *
1618 * Reads a block of 4-byte words from the CIM intenal address space.
1619 */
1620int t4_cim_read(struct adapter *adap, unsigned int addr, unsigned int n,
1621 unsigned int *valp)
1622{
1623 int ret = 0;
1624
1625 if (t4_read_reg(adap, A_CIM_HOST_ACC_CTRL) & F_HOSTBUSY)
1626 return -EBUSY;
1627
1628 for ( ; !ret && n--; addr += 4) {
1629 t4_write_reg(adap, A_CIM_HOST_ACC_CTRL, addr);
1630 ret = t4_wait_op_done(adap, A_CIM_HOST_ACC_CTRL, F_HOSTBUSY,
1631 0, 5, 2);
1632 if (!ret)
1633 *valp++ = t4_read_reg(adap, A_CIM_HOST_ACC_DATA);
1634 }
1635 return ret;
1636}
1637
1638/**
1639 * t4_cim_write - write a block into CIM internal address space
1640 * @adap: the adapter
1641 * @addr: the start address within the CIM address space
1642 * @n: number of words to write
1643 * @valp: set of values to write
1644 *
1645 * Writes a block of 4-byte words into the CIM intenal address space.
1646 */
1647int t4_cim_write(struct adapter *adap, unsigned int addr, unsigned int n,
1648 const unsigned int *valp)
1649{
1650 int ret = 0;
1651
1652 if (t4_read_reg(adap, A_CIM_HOST_ACC_CTRL) & F_HOSTBUSY)
1653 return -EBUSY;
1654
1655 for ( ; !ret && n--; addr += 4) {
1656 t4_write_reg(adap, A_CIM_HOST_ACC_DATA, *valp++);
1657 t4_write_reg(adap, A_CIM_HOST_ACC_CTRL, addr | F_HOSTWRITE);
1658 ret = t4_wait_op_done(adap, A_CIM_HOST_ACC_CTRL, F_HOSTBUSY,
1659 0, 5, 2);
1660 }
1661 return ret;
1662}
1663
1664static int t4_cim_write1(struct adapter *adap, unsigned int addr, unsigned int val)
1665{
1666 return t4_cim_write(adap, addr, 1, &val);
1667}
1668
1669/**
1670 * t4_cim_ctl_read - read a block from CIM control region
1671 * @adap: the adapter
1672 * @addr: the start address within the CIM control region
1673 * @n: number of words to read
1674 * @valp: where to store the result
1675 *
1676 * Reads a block of 4-byte words from the CIM control region.
1677 */
1678int t4_cim_ctl_read(struct adapter *adap, unsigned int addr, unsigned int n,
1679 unsigned int *valp)
1680{
1681 return t4_cim_read(adap, addr + CIM_CTL_BASE, n, valp);
1682}
1683
1684/**
1685 * t4_cim_read_la - read CIM LA capture buffer
1686 * @adap: the adapter
1687 * @la_buf: where to store the LA data
1688 * @wrptr: the HW write pointer within the capture buffer
1689 *
1690 * Reads the contents of the CIM LA buffer with the most recent entry at
1691 * the end of the returned data and with the entry at @wrptr first.
1692 * We try to leave the LA in the running state we find it in.
1693 */
1694int t4_cim_read_la(struct adapter *adap, u32 *la_buf, unsigned int *wrptr)
1695{
1696 int i, ret;
1697 unsigned int cfg, val, idx;
1698
1699 ret = t4_cim_read(adap, A_UP_UP_DBG_LA_CFG, 1, &cfg);
1700 if (ret)
1701 return ret;
1702
1703 if (cfg & F_UPDBGLAEN) { /* LA is running, freeze it */
1704 ret = t4_cim_write1(adap, A_UP_UP_DBG_LA_CFG, 0);
1705 if (ret)
1706 return ret;
1707 }
1708
1709 ret = t4_cim_read(adap, A_UP_UP_DBG_LA_CFG, 1, &val);
1710 if (ret)
1711 goto restart;
1712
1713 idx = G_UPDBGLAWRPTR(val);
1714 if (wrptr)
1715 *wrptr = idx;
1716
1717 for (i = 0; i < adap->params.cim_la_size; i++) {
1718 ret = t4_cim_write1(adap, A_UP_UP_DBG_LA_CFG,
1719 V_UPDBGLARDPTR(idx) | F_UPDBGLARDEN);
1720 if (ret)
1721 break;
1722 ret = t4_cim_read(adap, A_UP_UP_DBG_LA_CFG, 1, &val);
1723 if (ret)
1724 break;
1725 if (val & F_UPDBGLARDEN) {
1726 ret = -ETIMEDOUT;
1727 break;
1728 }
1729 ret = t4_cim_read(adap, A_UP_UP_DBG_LA_DATA, 1, &la_buf[i]);
1730 if (ret)
1731 break;
1732 idx = (idx + 1) & M_UPDBGLARDPTR;
1733 }
1734restart:
1735 if (cfg & F_UPDBGLAEN) {
1736 int r = t4_cim_write1(adap, A_UP_UP_DBG_LA_CFG,
1737 cfg & ~F_UPDBGLARDEN);
1738 if (!ret)
1739 ret = r;
1740 }
1741 return ret;
1742}
1743
1744void t4_cim_read_pif_la(struct adapter *adap, u32 *pif_req, u32 *pif_rsp,
1745 unsigned int *pif_req_wrptr,
1746 unsigned int *pif_rsp_wrptr)
1747{
1748 int i, j;
1749 u32 cfg, val, req, rsp;
1750
1751 cfg = t4_read_reg(adap, A_CIM_DEBUGCFG);
1752 if (cfg & F_LADBGEN)
1753 t4_write_reg(adap, A_CIM_DEBUGCFG, cfg ^ F_LADBGEN);
1754
1755 val = t4_read_reg(adap, A_CIM_DEBUGSTS);
1756 req = G_POLADBGWRPTR(val);
1757 rsp = G_PILADBGWRPTR(val);
1758 if (pif_req_wrptr)
1759 *pif_req_wrptr = req;
1760 if (pif_rsp_wrptr)
1761 *pif_rsp_wrptr = rsp;
1762
1763 for (i = 0; i < CIM_PIFLA_SIZE; i++) {
1764 for (j = 0; j < 6; j++) {
1765 t4_write_reg(adap, A_CIM_DEBUGCFG, V_POLADBGRDPTR(req) |
1766 V_PILADBGRDPTR(rsp));
1767 *pif_req++ = t4_read_reg(adap, A_CIM_PO_LA_DEBUGDATA);
1768 *pif_rsp++ = t4_read_reg(adap, A_CIM_PI_LA_DEBUGDATA);
1769 req++;
1770 rsp++;
1771 }
1772 req = (req + 2) & M_POLADBGRDPTR;
1773 rsp = (rsp + 2) & M_PILADBGRDPTR;
1774 }
1775 t4_write_reg(adap, A_CIM_DEBUGCFG, cfg);
1776}
1777
1778void t4_cim_read_ma_la(struct adapter *adap, u32 *ma_req, u32 *ma_rsp)
1779{
1780 u32 cfg;
1781 int i, j, idx;
1782
1783 cfg = t4_read_reg(adap, A_CIM_DEBUGCFG);
1784 if (cfg & F_LADBGEN)
1785 t4_write_reg(adap, A_CIM_DEBUGCFG, cfg ^ F_LADBGEN);
1786
1787 for (i = 0; i < CIM_MALA_SIZE; i++) {
1788 for (j = 0; j < 5; j++) {
1789 idx = 8 * i + j;
1790 t4_write_reg(adap, A_CIM_DEBUGCFG, V_POLADBGRDPTR(idx) |
1791 V_PILADBGRDPTR(idx));
1792 *ma_req++ = t4_read_reg(adap, A_CIM_PO_LA_MADEBUGDATA);
1793 *ma_rsp++ = t4_read_reg(adap, A_CIM_PI_LA_MADEBUGDATA);
1794 }
1795 }
1796 t4_write_reg(adap, A_CIM_DEBUGCFG, cfg);
1797}
1798
1799/**
1800 * t4_tp_read_la - read TP LA capture buffer
1801 * @adap: the adapter
1802 * @la_buf: where to store the LA data
1803 * @wrptr: the HW write pointer within the capture buffer
1804 *
1805 * Reads the contents of the TP LA buffer with the most recent entry at
1806 * the end of the returned data and with the entry at @wrptr first.
1807 * We leave the LA in the running state we find it in.
1808 */
1809void t4_tp_read_la(struct adapter *adap, u64 *la_buf, unsigned int *wrptr)
1810{
1811 bool last_incomplete;
1812 unsigned int i, cfg, val, idx;
1813
1814 cfg = t4_read_reg(adap, A_TP_DBG_LA_CONFIG) & 0xffff;
1815 if (cfg & F_DBGLAENABLE) /* freeze LA */
1816 t4_write_reg(adap, A_TP_DBG_LA_CONFIG,
1817 adap->params.tp.la_mask | (cfg ^ F_DBGLAENABLE));
1818
1819 val = t4_read_reg(adap, A_TP_DBG_LA_CONFIG);
1820 idx = G_DBGLAWPTR(val);
1821 last_incomplete = G_DBGLAMODE(val) >= 2 && (val & F_DBGLAWHLF) == 0;
1822 if (last_incomplete)
1823 idx = (idx + 1) & M_DBGLARPTR;
1824 if (wrptr)
1825 *wrptr = idx;
1826
1827 val &= 0xffff;
1828 val &= ~V_DBGLARPTR(M_DBGLARPTR);
1829 val |= adap->params.tp.la_mask;
1830
1831 for (i = 0; i < TPLA_SIZE; i++) {
1832 t4_write_reg(adap, A_TP_DBG_LA_CONFIG, V_DBGLARPTR(idx) | val);
1833 la_buf[i] = t4_read_reg64(adap, A_TP_DBG_LA_DATAL);
1834 idx = (idx + 1) & M_DBGLARPTR;
1835 }
1836
1837 /* Wipe out last entry if it isn't valid */
1838 if (last_incomplete)
1839 la_buf[TPLA_SIZE - 1] = ~0ULL;
1840
1841 if (cfg & F_DBGLAENABLE) /* restore running state */
1842 t4_write_reg(adap, A_TP_DBG_LA_CONFIG,
1843 cfg | adap->params.tp.la_mask);
1844}
1845
1846void t4_ulprx_read_la(struct adapter *adap, u32 *la_buf)
1847{
1848 unsigned int i, j;
1849
1850 for (i = 0; i < 8; i++) {
1851 u32 *p = la_buf + i;
1852
1853 t4_write_reg(adap, A_ULP_RX_LA_CTL, i);
1854 j = t4_read_reg(adap, A_ULP_RX_LA_WRPTR);
1855 t4_write_reg(adap, A_ULP_RX_LA_RDPTR, j);
1856 for (j = 0; j < ULPRX_LA_SIZE; j++, p += 8)
1857 *p = t4_read_reg(adap, A_ULP_RX_LA_RDDATA);
1858 }
1859}
1860
1861#define ADVERT_MASK (FW_PORT_CAP_SPEED_100M | FW_PORT_CAP_SPEED_1G |\
1862 FW_PORT_CAP_SPEED_10G | FW_PORT_CAP_SPEED_40G | \
1863 FW_PORT_CAP_SPEED_100G | FW_PORT_CAP_ANEG)
1864
1865/**
1866 * t4_link_start - apply link configuration to MAC/PHY
1867 * @phy: the PHY to setup
1868 * @mac: the MAC to setup
1869 * @lc: the requested link configuration
1870 *
1871 * Set up a port's MAC and PHY according to a desired link configuration.
1872 * - If the PHY can auto-negotiate first decide what to advertise, then
1873 * enable/disable auto-negotiation as desired, and reset.
1874 * - If the PHY does not auto-negotiate just reset it.
1875 * - If auto-negotiation is off set the MAC to the proper speed/duplex/FC,
1876 * otherwise do it later based on the outcome of auto-negotiation.
1877 */
1878int t4_link_start(struct adapter *adap, unsigned int mbox, unsigned int port,
1879 struct link_config *lc)
1880{
1881 struct fw_port_cmd c;
1882 unsigned int fc = 0, mdi = V_FW_PORT_CAP_MDI(FW_PORT_CAP_MDI_AUTO);
1883
1884 lc->link_ok = 0;
1885 if (lc->requested_fc & PAUSE_RX)
1886 fc |= FW_PORT_CAP_FC_RX;
1887 if (lc->requested_fc & PAUSE_TX)
1888 fc |= FW_PORT_CAP_FC_TX;
1889
1890 memset(&c, 0, sizeof(c));
1891 c.op_to_portid = htonl(V_FW_CMD_OP(FW_PORT_CMD) | F_FW_CMD_REQUEST |
1892 F_FW_CMD_EXEC | V_FW_PORT_CMD_PORTID(port));
1893 c.action_to_len16 = htonl(V_FW_PORT_CMD_ACTION(FW_PORT_ACTION_L1_CFG) |
1894 FW_LEN16(c));
1895
1896 if (!(lc->supported & FW_PORT_CAP_ANEG)) {
1897 c.u.l1cfg.rcap = htonl((lc->supported & ADVERT_MASK) | fc);
1898 lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
1899 } else if (lc->autoneg == AUTONEG_DISABLE) {
1900 c.u.l1cfg.rcap = htonl(lc->requested_speed | fc | mdi);
1901 lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
1902 } else
1903 c.u.l1cfg.rcap = htonl(lc->advertising | fc | mdi);
1904
1905 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
1906}
1907
1908/**
1909 * t4_restart_aneg - restart autonegotiation
1910 * @adap: the adapter
1911 * @mbox: mbox to use for the FW command
1912 * @port: the port id
1913 *
1914 * Restarts autonegotiation for the selected port.
1915 */
1916int t4_restart_aneg(struct adapter *adap, unsigned int mbox, unsigned int port)
1917{
1918 struct fw_port_cmd c;
1919
1920 memset(&c, 0, sizeof(c));
1921 c.op_to_portid = htonl(V_FW_CMD_OP(FW_PORT_CMD) | F_FW_CMD_REQUEST |
1922 F_FW_CMD_EXEC | V_FW_PORT_CMD_PORTID(port));
1923 c.action_to_len16 = htonl(V_FW_PORT_CMD_ACTION(FW_PORT_ACTION_L1_CFG) |
1924 FW_LEN16(c));
1925 c.u.l1cfg.rcap = htonl(FW_PORT_CAP_ANEG);
1926 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
1927}
1928
1929struct intr_info {
1930 unsigned int mask; /* bits to check in interrupt status */
1931 const char *msg; /* message to print or NULL */
1932 short stat_idx; /* stat counter to increment or -1 */
1933 unsigned short fatal; /* whether the condition reported is fatal */
1934};
1935
1936/**
1937 * t4_handle_intr_status - table driven interrupt handler
1938 * @adapter: the adapter that generated the interrupt
1939 * @reg: the interrupt status register to process
1940 * @acts: table of interrupt actions
1941 *
1942 * A table driven interrupt handler that applies a set of masks to an
1943 * interrupt status word and performs the corresponding actions if the
1944 * interrupts described by the mask have occured. The actions include
1945 * optionally emitting a warning or alert message. The table is terminated
1946 * by an entry specifying mask 0. Returns the number of fatal interrupt
1947 * conditions.
1948 */
1949static int t4_handle_intr_status(struct adapter *adapter, unsigned int reg,
1950 const struct intr_info *acts)
1951{
1952 int fatal = 0;
1953 unsigned int mask = 0;
1954 unsigned int status = t4_read_reg(adapter, reg);
1955
1956 for ( ; acts->mask; ++acts) {
1957 if (!(status & acts->mask))
1958 continue;
1959 if (acts->fatal) {
1960 fatal++;
1961 CH_ALERT(adapter, "%s (0x%x)\n",
1962 acts->msg, status & acts->mask);
1963 } else if (acts->msg)
1964 CH_WARN_RATELIMIT(adapter, "%s (0x%x)\n",
1965 acts->msg, status & acts->mask);
1966 mask |= acts->mask;
1967 }
1968 status &= mask;
1969 if (status) /* clear processed interrupts */
1970 t4_write_reg(adapter, reg, status);
1971 return fatal;
1972}
1973
1974/*
1975 * Interrupt handler for the PCIE module.
1976 */
1977static void pcie_intr_handler(struct adapter *adapter)
1978{
1979 static struct intr_info sysbus_intr_info[] = {
1980 { F_RNPP, "RXNP array parity error", -1, 1 },
1981 { F_RPCP, "RXPC array parity error", -1, 1 },
1982 { F_RCIP, "RXCIF array parity error", -1, 1 },
1983 { F_RCCP, "Rx completions control array parity error", -1, 1 },
1984 { F_RFTP, "RXFT array parity error", -1, 1 },
1985 { 0 }
1986 };
1987 static struct intr_info pcie_port_intr_info[] = {
1988 { F_TPCP, "TXPC array parity error", -1, 1 },
1989 { F_TNPP, "TXNP array parity error", -1, 1 },
1990 { F_TFTP, "TXFT array parity error", -1, 1 },
1991 { F_TCAP, "TXCA array parity error", -1, 1 },
1992 { F_TCIP, "TXCIF array parity error", -1, 1 },
1993 { F_RCAP, "RXCA array parity error", -1, 1 },
1994 { F_OTDD, "outbound request TLP discarded", -1, 1 },
1995 { F_RDPE, "Rx data parity error", -1, 1 },
1996 { F_TDUE, "Tx uncorrectable data error", -1, 1 },
1997 { 0 }
1998 };
1999 static struct intr_info pcie_intr_info[] = {
2000 { F_MSIADDRLPERR, "MSI AddrL parity error", -1, 1 },
2001 { F_MSIADDRHPERR, "MSI AddrH parity error", -1, 1 },
2002 { F_MSIDATAPERR, "MSI data parity error", -1, 1 },
2003 { F_MSIXADDRLPERR, "MSI-X AddrL parity error", -1, 1 },
2004 { F_MSIXADDRHPERR, "MSI-X AddrH parity error", -1, 1 },
2005 { F_MSIXDATAPERR, "MSI-X data parity error", -1, 1 },
2006 { F_MSIXDIPERR, "MSI-X DI parity error", -1, 1 },
2007 { F_PIOCPLPERR, "PCI PIO completion FIFO parity error", -1, 1 },
2008 { F_PIOREQPERR, "PCI PIO request FIFO parity error", -1, 1 },
2009 { F_TARTAGPERR, "PCI PCI target tag FIFO parity error", -1, 1 },
2010 { F_CCNTPERR, "PCI CMD channel count parity error", -1, 1 },
2011 { F_CREQPERR, "PCI CMD channel request parity error", -1, 1 },
2012 { F_CRSPPERR, "PCI CMD channel response parity error", -1, 1 },
2013 { F_DCNTPERR, "PCI DMA channel count parity error", -1, 1 },
2014 { F_DREQPERR, "PCI DMA channel request parity error", -1, 1 },
2015 { F_DRSPPERR, "PCI DMA channel response parity error", -1, 1 },
2016 { F_HCNTPERR, "PCI HMA channel count parity error", -1, 1 },
2017 { F_HREQPERR, "PCI HMA channel request parity error", -1, 1 },
2018 { F_HRSPPERR, "PCI HMA channel response parity error", -1, 1 },
2019 { F_CFGSNPPERR, "PCI config snoop FIFO parity error", -1, 1 },
2020 { F_FIDPERR, "PCI FID parity error", -1, 1 },
2021 { F_INTXCLRPERR, "PCI INTx clear parity error", -1, 1 },
2022 { F_MATAGPERR, "PCI MA tag parity error", -1, 1 },
2023 { F_PIOTAGPERR, "PCI PIO tag parity error", -1, 1 },
2024 { F_RXCPLPERR, "PCI Rx completion parity error", -1, 1 },
2025 { F_RXWRPERR, "PCI Rx write parity error", -1, 1 },
2026 { F_RPLPERR, "PCI replay buffer parity error", -1, 1 },
2027 { F_PCIESINT, "PCI core secondary fault", -1, 1 },
2028 { F_PCIEPINT, "PCI core primary fault", -1, 1 },
2029 { F_UNXSPLCPLERR, "PCI unexpected split completion error", -1,
2030 0 },
2031 { 0 }
2032 };
2033
2034 static struct intr_info t5_pcie_intr_info[] = {
2035 { F_MSTGRPPERR, "Master Response Read Queue parity error",
2036 -1, 1 },
2037 { F_MSTTIMEOUTPERR, "Master Timeout FIFO parity error", -1, 1 },
2038 { F_MSIXSTIPERR, "MSI-X STI SRAM parity error", -1, 1 },
2039 { F_MSIXADDRLPERR, "MSI-X AddrL parity error", -1, 1 },
2040 { F_MSIXADDRHPERR, "MSI-X AddrH parity error", -1, 1 },
2041 { F_MSIXDATAPERR, "MSI-X data parity error", -1, 1 },
2042 { F_MSIXDIPERR, "MSI-X DI parity error", -1, 1 },
2043 { F_PIOCPLGRPPERR, "PCI PIO completion Group FIFO parity error",
2044 -1, 1 },
2045 { F_PIOREQGRPPERR, "PCI PIO request Group FIFO parity error",
2046 -1, 1 },
2047 { F_TARTAGPERR, "PCI PCI target tag FIFO parity error", -1, 1 },
2048 { F_MSTTAGQPERR, "PCI master tag queue parity error", -1, 1 },
2049 { F_CREQPERR, "PCI CMD channel request parity error", -1, 1 },
2050 { F_CRSPPERR, "PCI CMD channel response parity error", -1, 1 },
2051 { F_DREQWRPERR, "PCI DMA channel write request parity error",
2052 -1, 1 },
2053 { F_DREQPERR, "PCI DMA channel request parity error", -1, 1 },
2054 { F_DRSPPERR, "PCI DMA channel response parity error", -1, 1 },
2055 { F_HREQWRPERR, "PCI HMA channel count parity error", -1, 1 },
2056 { F_HREQPERR, "PCI HMA channel request parity error", -1, 1 },
2057 { F_HRSPPERR, "PCI HMA channel response parity error", -1, 1 },
2058 { F_CFGSNPPERR, "PCI config snoop FIFO parity error", -1, 1 },
2059 { F_FIDPERR, "PCI FID parity error", -1, 1 },
2060 { F_VFIDPERR, "PCI INTx clear parity error", -1, 1 },
2061 { F_MAGRPPERR, "PCI MA group FIFO parity error", -1, 1 },
2062 { F_PIOTAGPERR, "PCI PIO tag parity error", -1, 1 },
2063 { F_IPRXHDRGRPPERR, "PCI IP Rx header group parity error",
2064 -1, 1 },
2065 { F_IPRXDATAGRPPERR, "PCI IP Rx data group parity error",
2066 -1, 1 },
2067 { F_RPLPERR, "PCI IP replay buffer parity error", -1, 1 },
2068 { F_IPSOTPERR, "PCI IP SOT buffer parity error", -1, 1 },
2069 { F_TRGT1GRPPERR, "PCI TRGT1 group FIFOs parity error", -1, 1 },
2070 { F_READRSPERR, "Outbound read error", -1,
2071 0 },
2072 { 0 }
2073 };
2074
2075 int fat;
2076
2077 fat = t4_handle_intr_status(adapter,
2078 A_PCIE_CORE_UTL_SYSTEM_BUS_AGENT_STATUS,
2079 sysbus_intr_info) +
2080 t4_handle_intr_status(adapter,
2081 A_PCIE_CORE_UTL_PCI_EXPRESS_PORT_STATUS,
2082 pcie_port_intr_info) +
2083 t4_handle_intr_status(adapter, A_PCIE_INT_CAUSE,
2084 is_t4(adapter) ?
2085 pcie_intr_info : t5_pcie_intr_info);
2086 if (fat)
2087 t4_fatal_err(adapter);
2088}
2089
2090/*
2091 * TP interrupt handler.
2092 */
2093static void tp_intr_handler(struct adapter *adapter)
2094{
2095 static struct intr_info tp_intr_info[] = {
2096 { 0x3fffffff, "TP parity error", -1, 1 },
2097 { F_FLMTXFLSTEMPTY, "TP out of Tx pages", -1, 1 },
2098 { 0 }
2099 };
2100
2101 if (t4_handle_intr_status(adapter, A_TP_INT_CAUSE, tp_intr_info))
2102 t4_fatal_err(adapter);
2103}
2104
2105/*
2106 * SGE interrupt handler.
2107 */
2108static void sge_intr_handler(struct adapter *adapter)
2109{
2110 u64 v;
2111 u32 err;
2112
2113 static struct intr_info sge_intr_info[] = {
2114 { F_ERR_CPL_EXCEED_IQE_SIZE,
2115 "SGE received CPL exceeding IQE size", -1, 1 },
2116 { F_ERR_INVALID_CIDX_INC,
2117 "SGE GTS CIDX increment too large", -1, 0 },
2118 { F_ERR_CPL_OPCODE_0, "SGE received 0-length CPL", -1, 0 },
2119 { F_ERR_DROPPED_DB, "SGE doorbell dropped", -1, 0 },
2120 { F_ERR_DATA_CPL_ON_HIGH_QID1 | F_ERR_DATA_CPL_ON_HIGH_QID0,
2121 "SGE IQID > 1023 received CPL for FL", -1, 0 },
2122 { F_ERR_BAD_DB_PIDX3, "SGE DBP 3 pidx increment too large", -1,
2123 0 },
2124 { F_ERR_BAD_DB_PIDX2, "SGE DBP 2 pidx increment too large", -1,
2125 0 },
2126 { F_ERR_BAD_DB_PIDX1, "SGE DBP 1 pidx increment too large", -1,
2127 0 },
2128 { F_ERR_BAD_DB_PIDX0, "SGE DBP 0 pidx increment too large", -1,
2129 0 },
2130 { F_ERR_ING_CTXT_PRIO,
2131 "SGE too many priority ingress contexts", -1, 0 },
2132 { F_ERR_EGR_CTXT_PRIO,
2133 "SGE too many priority egress contexts", -1, 0 },
2134 { F_INGRESS_SIZE_ERR, "SGE illegal ingress QID", -1, 0 },
2135 { F_EGRESS_SIZE_ERR, "SGE illegal egress QID", -1, 0 },
2136 { 0 }
2137 };
2138
2139 v = (u64)t4_read_reg(adapter, A_SGE_INT_CAUSE1) |
2140 ((u64)t4_read_reg(adapter, A_SGE_INT_CAUSE2) << 32);
2141 if (v) {
2142 CH_ALERT(adapter, "SGE parity error (%#llx)\n",
2143 (unsigned long long)v);
2144 t4_write_reg(adapter, A_SGE_INT_CAUSE1, v);
2145 t4_write_reg(adapter, A_SGE_INT_CAUSE2, v >> 32);
2146 }
2147
2148 v |= t4_handle_intr_status(adapter, A_SGE_INT_CAUSE3, sge_intr_info);
2149
2150 err = t4_read_reg(adapter, A_SGE_ERROR_STATS);
2151 if (err & F_ERROR_QID_VALID) {
2152 CH_ERR(adapter, "SGE error for queue %u\n", G_ERROR_QID(err));
2153 if (err & F_UNCAPTURED_ERROR)
2154 CH_ERR(adapter, "SGE UNCAPTURED_ERROR set (clearing)\n");
2155 t4_write_reg(adapter, A_SGE_ERROR_STATS, F_ERROR_QID_VALID |
2156 F_UNCAPTURED_ERROR);
2157 }
2158
2159 if (v != 0)
2160 t4_fatal_err(adapter);
2161}
2162
2163#define CIM_OBQ_INTR (F_OBQULP0PARERR | F_OBQULP1PARERR | F_OBQULP2PARERR |\
2164 F_OBQULP3PARERR | F_OBQSGEPARERR | F_OBQNCSIPARERR)
2165#define CIM_IBQ_INTR (F_IBQTP0PARERR | F_IBQTP1PARERR | F_IBQULPPARERR |\
2166 F_IBQSGEHIPARERR | F_IBQSGELOPARERR | F_IBQNCSIPARERR)
2167
2168/*
2169 * CIM interrupt handler.
2170 */
2171static void cim_intr_handler(struct adapter *adapter)
2172{
2173 static struct intr_info cim_intr_info[] = {
2174 { F_PREFDROPINT, "CIM control register prefetch drop", -1, 1 },
2175 { CIM_OBQ_INTR, "CIM OBQ parity error", -1, 1 },
2176 { CIM_IBQ_INTR, "CIM IBQ parity error", -1, 1 },
2177 { F_MBUPPARERR, "CIM mailbox uP parity error", -1, 1 },
2178 { F_MBHOSTPARERR, "CIM mailbox host parity error", -1, 1 },
2179 { F_TIEQINPARERRINT, "CIM TIEQ outgoing parity error", -1, 1 },
2180 { F_TIEQOUTPARERRINT, "CIM TIEQ incoming parity error", -1, 1 },
2181 { 0 }
2182 };
2183 static struct intr_info cim_upintr_info[] = {
2184 { F_RSVDSPACEINT, "CIM reserved space access", -1, 1 },
2185 { F_ILLTRANSINT, "CIM illegal transaction", -1, 1 },
2186 { F_ILLWRINT, "CIM illegal write", -1, 1 },
2187 { F_ILLRDINT, "CIM illegal read", -1, 1 },
2188 { F_ILLRDBEINT, "CIM illegal read BE", -1, 1 },
2189 { F_ILLWRBEINT, "CIM illegal write BE", -1, 1 },
2190 { F_SGLRDBOOTINT, "CIM single read from boot space", -1, 1 },
2191 { F_SGLWRBOOTINT, "CIM single write to boot space", -1, 1 },
2192 { F_BLKWRBOOTINT, "CIM block write to boot space", -1, 1 },
2193 { F_SGLRDFLASHINT, "CIM single read from flash space", -1, 1 },
2194 { F_SGLWRFLASHINT, "CIM single write to flash space", -1, 1 },
2195 { F_BLKWRFLASHINT, "CIM block write to flash space", -1, 1 },
2196 { F_SGLRDEEPROMINT, "CIM single EEPROM read", -1, 1 },
2197 { F_SGLWREEPROMINT, "CIM single EEPROM write", -1, 1 },
2198 { F_BLKRDEEPROMINT, "CIM block EEPROM read", -1, 1 },
2199 { F_BLKWREEPROMINT, "CIM block EEPROM write", -1, 1 },
2200 { F_SGLRDCTLINT , "CIM single read from CTL space", -1, 1 },
2201 { F_SGLWRCTLINT , "CIM single write to CTL space", -1, 1 },
2202 { F_BLKRDCTLINT , "CIM block read from CTL space", -1, 1 },
2203 { F_BLKWRCTLINT , "CIM block write to CTL space", -1, 1 },
2204 { F_SGLRDPLINT , "CIM single read from PL space", -1, 1 },
2205 { F_SGLWRPLINT , "CIM single write to PL space", -1, 1 },
2206 { F_BLKRDPLINT , "CIM block read from PL space", -1, 1 },
2207 { F_BLKWRPLINT , "CIM block write to PL space", -1, 1 },
2208 { F_REQOVRLOOKUPINT , "CIM request FIFO overwrite", -1, 1 },
2209 { F_RSPOVRLOOKUPINT , "CIM response FIFO overwrite", -1, 1 },
2210 { F_TIMEOUTINT , "CIM PIF timeout", -1, 1 },
2211 { F_TIMEOUTMAINT , "CIM PIF MA timeout", -1, 1 },
2212 { 0 }
2213 };
2214 int fat;
2215
2216 if (t4_read_reg(adapter, A_PCIE_FW) & F_PCIE_FW_ERR)
2217 t4_report_fw_error(adapter);
2218
2219 fat = t4_handle_intr_status(adapter, A_CIM_HOST_INT_CAUSE,
2220 cim_intr_info) +
2221 t4_handle_intr_status(adapter, A_CIM_HOST_UPACC_INT_CAUSE,
2222 cim_upintr_info);
2223 if (fat)
2224 t4_fatal_err(adapter);
2225}
2226
2227/*
2228 * ULP RX interrupt handler.
2229 */
2230static void ulprx_intr_handler(struct adapter *adapter)
2231{
2232 static struct intr_info ulprx_intr_info[] = {
2233 { F_CAUSE_CTX_1, "ULPRX channel 1 context error", -1, 1 },
2234 { F_CAUSE_CTX_0, "ULPRX channel 0 context error", -1, 1 },
2235 { 0x7fffff, "ULPRX parity error", -1, 1 },
2236 { 0 }
2237 };
2238
2239 if (t4_handle_intr_status(adapter, A_ULP_RX_INT_CAUSE, ulprx_intr_info))
2240 t4_fatal_err(adapter);
2241}
2242
2243/*
2244 * ULP TX interrupt handler.
2245 */
2246static void ulptx_intr_handler(struct adapter *adapter)
2247{
2248 static struct intr_info ulptx_intr_info[] = {
2249 { F_PBL_BOUND_ERR_CH3, "ULPTX channel 3 PBL out of bounds", -1,
2250 0 },
2251 { F_PBL_BOUND_ERR_CH2, "ULPTX channel 2 PBL out of bounds", -1,
2252 0 },
2253 { F_PBL_BOUND_ERR_CH1, "ULPTX channel 1 PBL out of bounds", -1,
2254 0 },
2255 { F_PBL_BOUND_ERR_CH0, "ULPTX channel 0 PBL out of bounds", -1,
2256 0 },
2257 { 0xfffffff, "ULPTX parity error", -1, 1 },
2258 { 0 }
2259 };
2260
2261 if (t4_handle_intr_status(adapter, A_ULP_TX_INT_CAUSE, ulptx_intr_info))
2262 t4_fatal_err(adapter);
2263}
2264
2265/*
2266 * PM TX interrupt handler.
2267 */
2268static void pmtx_intr_handler(struct adapter *adapter)
2269{
2270 static struct intr_info pmtx_intr_info[] = {
2271 { F_PCMD_LEN_OVFL0, "PMTX channel 0 pcmd too large", -1, 1 },
2272 { F_PCMD_LEN_OVFL1, "PMTX channel 1 pcmd too large", -1, 1 },
2273 { F_PCMD_LEN_OVFL2, "PMTX channel 2 pcmd too large", -1, 1 },
2274 { F_ZERO_C_CMD_ERROR, "PMTX 0-length pcmd", -1, 1 },
2275 { 0xffffff0, "PMTX framing error", -1, 1 },
2276 { F_OESPI_PAR_ERROR, "PMTX oespi parity error", -1, 1 },
2277 { F_DB_OPTIONS_PAR_ERROR, "PMTX db_options parity error", -1,
2278 1 },
2279 { F_ICSPI_PAR_ERROR, "PMTX icspi parity error", -1, 1 },
2280 { F_C_PCMD_PAR_ERROR, "PMTX c_pcmd parity error", -1, 1},
2281 { 0 }
2282 };
2283
2284 if (t4_handle_intr_status(adapter, A_PM_TX_INT_CAUSE, pmtx_intr_info))
2285 t4_fatal_err(adapter);
2286}
2287
2288/*
2289 * PM RX interrupt handler.
2290 */
2291static void pmrx_intr_handler(struct adapter *adapter)
2292{
2293 static struct intr_info pmrx_intr_info[] = {
2294 { F_ZERO_E_CMD_ERROR, "PMRX 0-length pcmd", -1, 1 },
2295 { 0x3ffff0, "PMRX framing error", -1, 1 },
2296 { F_OCSPI_PAR_ERROR, "PMRX ocspi parity error", -1, 1 },
2297 { F_DB_OPTIONS_PAR_ERROR, "PMRX db_options parity error", -1,
2298 1 },
2299 { F_IESPI_PAR_ERROR, "PMRX iespi parity error", -1, 1 },
2300 { F_E_PCMD_PAR_ERROR, "PMRX e_pcmd parity error", -1, 1},
2301 { 0 }
2302 };
2303
2304 if (t4_handle_intr_status(adapter, A_PM_RX_INT_CAUSE, pmrx_intr_info))
2305 t4_fatal_err(adapter);
2306}
2307
2308/*
2309 * CPL switch interrupt handler.
2310 */
2311static void cplsw_intr_handler(struct adapter *adapter)
2312{
2313 static struct intr_info cplsw_intr_info[] = {
2314 { F_CIM_OP_MAP_PERR, "CPLSW CIM op_map parity error", -1, 1 },
2315 { F_CIM_OVFL_ERROR, "CPLSW CIM overflow", -1, 1 },
2316 { F_TP_FRAMING_ERROR, "CPLSW TP framing error", -1, 1 },
2317 { F_SGE_FRAMING_ERROR, "CPLSW SGE framing error", -1, 1 },
2318 { F_CIM_FRAMING_ERROR, "CPLSW CIM framing error", -1, 1 },
2319 { F_ZERO_SWITCH_ERROR, "CPLSW no-switch error", -1, 1 },
2320 { 0 }
2321 };
2322
2323 if (t4_handle_intr_status(adapter, A_CPL_INTR_CAUSE, cplsw_intr_info))
2324 t4_fatal_err(adapter);
2325}
2326
2327/*
2328 * LE interrupt handler.
2329 */
2330static void le_intr_handler(struct adapter *adap)
2331{
2332 static struct intr_info le_intr_info[] = {
2333 { F_LIPMISS, "LE LIP miss", -1, 0 },
2334 { F_LIP0, "LE 0 LIP error", -1, 0 },
2335 { F_PARITYERR, "LE parity error", -1, 1 },
2336 { F_UNKNOWNCMD, "LE unknown command", -1, 1 },
2337 { F_REQQPARERR, "LE request queue parity error", -1, 1 },
2338 { 0 }
2339 };
2340
2341 if (t4_handle_intr_status(adap, A_LE_DB_INT_CAUSE, le_intr_info))
2342 t4_fatal_err(adap);
2343}
2344
2345/*
2346 * MPS interrupt handler.
2347 */
2348static void mps_intr_handler(struct adapter *adapter)
2349{
2350 static struct intr_info mps_rx_intr_info[] = {
2351 { 0xffffff, "MPS Rx parity error", -1, 1 },
2352 { 0 }
2353 };
2354 static struct intr_info mps_tx_intr_info[] = {
2355 { V_TPFIFO(M_TPFIFO), "MPS Tx TP FIFO parity error", -1, 1 },
2356 { F_NCSIFIFO, "MPS Tx NC-SI FIFO parity error", -1, 1 },
2357 { V_TXDATAFIFO(M_TXDATAFIFO), "MPS Tx data FIFO parity error",
2358 -1, 1 },
2359 { V_TXDESCFIFO(M_TXDESCFIFO), "MPS Tx desc FIFO parity error",
2360 -1, 1 },
2361 { F_BUBBLE, "MPS Tx underflow", -1, 1 },
2362 { F_SECNTERR, "MPS Tx SOP/EOP error", -1, 1 },
2363 { F_FRMERR, "MPS Tx framing error", -1, 1 },
2364 { 0 }
2365 };
2366 static struct intr_info mps_trc_intr_info[] = {
2367 { V_FILTMEM(M_FILTMEM), "MPS TRC filter parity error", -1, 1 },
2368 { V_PKTFIFO(M_PKTFIFO), "MPS TRC packet FIFO parity error", -1,
2369 1 },
2370 { F_MISCPERR, "MPS TRC misc parity error", -1, 1 },
2371 { 0 }
2372 };
2373 static struct intr_info mps_stat_sram_intr_info[] = {
2374 { 0x1fffff, "MPS statistics SRAM parity error", -1, 1 },
2375 { 0 }
2376 };
2377 static struct intr_info mps_stat_tx_intr_info[] = {
2378 { 0xfffff, "MPS statistics Tx FIFO parity error", -1, 1 },
2379 { 0 }
2380 };
2381 static struct intr_info mps_stat_rx_intr_info[] = {
2382 { 0xffffff, "MPS statistics Rx FIFO parity error", -1, 1 },
2383 { 0 }
2384 };
2385 static struct intr_info mps_cls_intr_info[] = {
2386 { F_MATCHSRAM, "MPS match SRAM parity error", -1, 1 },
2387 { F_MATCHTCAM, "MPS match TCAM parity error", -1, 1 },
2388 { F_HASHSRAM, "MPS hash SRAM parity error", -1, 1 },
2389 { 0 }
2390 };
2391
2392 int fat;
2393
2394 fat = t4_handle_intr_status(adapter, A_MPS_RX_PERR_INT_CAUSE,
2395 mps_rx_intr_info) +
2396 t4_handle_intr_status(adapter, A_MPS_TX_INT_CAUSE,
2397 mps_tx_intr_info) +
2398 t4_handle_intr_status(adapter, A_MPS_TRC_INT_CAUSE,
2399 mps_trc_intr_info) +
2400 t4_handle_intr_status(adapter, A_MPS_STAT_PERR_INT_CAUSE_SRAM,
2401 mps_stat_sram_intr_info) +
2402 t4_handle_intr_status(adapter, A_MPS_STAT_PERR_INT_CAUSE_TX_FIFO,
2403 mps_stat_tx_intr_info) +
2404 t4_handle_intr_status(adapter, A_MPS_STAT_PERR_INT_CAUSE_RX_FIFO,
2405 mps_stat_rx_intr_info) +
2406 t4_handle_intr_status(adapter, A_MPS_CLS_INT_CAUSE,
2407 mps_cls_intr_info);
2408
2409 t4_write_reg(adapter, A_MPS_INT_CAUSE, 0);
2410 t4_read_reg(adapter, A_MPS_INT_CAUSE); /* flush */
2411 if (fat)
2412 t4_fatal_err(adapter);
2413}
2414
2415#define MEM_INT_MASK (F_PERR_INT_CAUSE | F_ECC_CE_INT_CAUSE | F_ECC_UE_INT_CAUSE)
2416
2417/*
2418 * EDC/MC interrupt handler.
2419 */
2420static void mem_intr_handler(struct adapter *adapter, int idx)
2421{
2422 static const char name[3][5] = { "EDC0", "EDC1", "MC" };
2423
2424 unsigned int addr, cnt_addr, v;
2425
2426 if (idx <= MEM_EDC1) {
2427 addr = EDC_REG(A_EDC_INT_CAUSE, idx);
2428 cnt_addr = EDC_REG(A_EDC_ECC_STATUS, idx);
2429 } else {
2430 if (is_t4(adapter)) {
2431 addr = A_MC_INT_CAUSE;
2432 cnt_addr = A_MC_ECC_STATUS;
2433 } else {
2434 addr = A_MC_P_INT_CAUSE;
2435 cnt_addr = A_MC_P_ECC_STATUS;
2436 }
2437 }
2438
2439 v = t4_read_reg(adapter, addr) & MEM_INT_MASK;
2440 if (v & F_PERR_INT_CAUSE)
2441 CH_ALERT(adapter, "%s FIFO parity error\n", name[idx]);
2442 if (v & F_ECC_CE_INT_CAUSE) {
2443 u32 cnt = G_ECC_CECNT(t4_read_reg(adapter, cnt_addr));
2444
2445 t4_write_reg(adapter, cnt_addr, V_ECC_CECNT(M_ECC_CECNT));
2446 CH_WARN_RATELIMIT(adapter,
2447 "%u %s correctable ECC data error%s\n",
2448 cnt, name[idx], cnt > 1 ? "s" : "");
2449 }
2450 if (v & F_ECC_UE_INT_CAUSE)
2451 CH_ALERT(adapter, "%s uncorrectable ECC data error\n",
2452 name[idx]);
2453
2454 t4_write_reg(adapter, addr, v);
2455 if (v & (F_PERR_INT_CAUSE | F_ECC_UE_INT_CAUSE))
2456 t4_fatal_err(adapter);
2457}
2458
2459/*
2460 * MA interrupt handler.
2461 */
2462static void ma_intr_handler(struct adapter *adapter)
2463{
2464 u32 v, status = t4_read_reg(adapter, A_MA_INT_CAUSE);
2465
2466 if (status & F_MEM_PERR_INT_CAUSE)
2467 CH_ALERT(adapter, "MA parity error, parity status %#x\n",
2468 t4_read_reg(adapter, A_MA_PARITY_ERROR_STATUS));
2469 if (status & F_MEM_WRAP_INT_CAUSE) {
2470 v = t4_read_reg(adapter, A_MA_INT_WRAP_STATUS);
2471 CH_ALERT(adapter, "MA address wrap-around error by client %u to"
2472 " address %#x\n", G_MEM_WRAP_CLIENT_NUM(v),
2473 G_MEM_WRAP_ADDRESS(v) << 4);
2474 }
2475 t4_write_reg(adapter, A_MA_INT_CAUSE, status);
2476 t4_fatal_err(adapter);
2477}
2478
2479/*
2480 * SMB interrupt handler.
2481 */
2482static void smb_intr_handler(struct adapter *adap)
2483{
2484 static struct intr_info smb_intr_info[] = {
2485 { F_MSTTXFIFOPARINT, "SMB master Tx FIFO parity error", -1, 1 },
2486 { F_MSTRXFIFOPARINT, "SMB master Rx FIFO parity error", -1, 1 },
2487 { F_SLVFIFOPARINT, "SMB slave FIFO parity error", -1, 1 },
2488 { 0 }
2489 };
2490
2491 if (t4_handle_intr_status(adap, A_SMB_INT_CAUSE, smb_intr_info))
2492 t4_fatal_err(adap);
2493}
2494
2495/*
2496 * NC-SI interrupt handler.
2497 */
2498static void ncsi_intr_handler(struct adapter *adap)
2499{
2500 static struct intr_info ncsi_intr_info[] = {
2501 { F_CIM_DM_PRTY_ERR, "NC-SI CIM parity error", -1, 1 },
2502 { F_MPS_DM_PRTY_ERR, "NC-SI MPS parity error", -1, 1 },
2503 { F_TXFIFO_PRTY_ERR, "NC-SI Tx FIFO parity error", -1, 1 },
2504 { F_RXFIFO_PRTY_ERR, "NC-SI Rx FIFO parity error", -1, 1 },
2505 { 0 }
2506 };
2507
2508 if (t4_handle_intr_status(adap, A_NCSI_INT_CAUSE, ncsi_intr_info))
2509 t4_fatal_err(adap);
2510}
2511
2512/*
2513 * XGMAC interrupt handler.
2514 */
2515static void xgmac_intr_handler(struct adapter *adap, int port)
2516{
2517 u32 v, int_cause_reg;
2518
2519 if (is_t4(adap))
2520 int_cause_reg = PORT_REG(port, A_XGMAC_PORT_INT_CAUSE);
2521 else
2522 int_cause_reg = T5_PORT_REG(port, A_MAC_PORT_INT_CAUSE);
2523
2524 v = t4_read_reg(adap, int_cause_reg);
2525 v &= (F_TXFIFO_PRTY_ERR | F_RXFIFO_PRTY_ERR);
2526 if (!v)
2527 return;
2528
2529 if (v & F_TXFIFO_PRTY_ERR)
2530 CH_ALERT(adap, "XGMAC %d Tx FIFO parity error\n", port);
2531 if (v & F_RXFIFO_PRTY_ERR)
2532 CH_ALERT(adap, "XGMAC %d Rx FIFO parity error\n", port);
2533 t4_write_reg(adap, int_cause_reg, v);
2534 t4_fatal_err(adap);
2535}
2536
2537/*
2538 * PL interrupt handler.
2539 */
2540static void pl_intr_handler(struct adapter *adap)
2541{
2542 static struct intr_info pl_intr_info[] = {
2543 { F_FATALPERR, "Fatal parity error", -1, 1 },
2544 { F_PERRVFID, "PL VFID_MAP parity error", -1, 1 },
2545 { 0 }
2546 };
2547
2548 static struct intr_info t5_pl_intr_info[] = {
2549 { F_PL_BUSPERR, "PL bus parity error", -1, 1 },
2550 { F_FATALPERR, "Fatal parity error", -1, 1 },
2551 { 0 }
2552 };
2553
2554 if (t4_handle_intr_status(adap, A_PL_PL_INT_CAUSE,
2555 is_t4(adap) ? pl_intr_info : t5_pl_intr_info))
2556 t4_fatal_err(adap);
2557}
2558
2559#define PF_INTR_MASK (F_PFSW | F_PFCIM)
2560#define GLBL_INTR_MASK (F_CIM | F_MPS | F_PL | F_PCIE | F_MC | F_EDC0 | \
2561 F_EDC1 | F_LE | F_TP | F_MA | F_PM_TX | F_PM_RX | F_ULP_RX | \
2562 F_CPL_SWITCH | F_SGE | F_ULP_TX)
2563
2564/**
2565 * t4_slow_intr_handler - control path interrupt handler
2566 * @adapter: the adapter
2567 *
2568 * T4 interrupt handler for non-data global interrupt events, e.g., errors.
2569 * The designation 'slow' is because it involves register reads, while
2570 * data interrupts typically don't involve any MMIOs.
2571 */
2572int t4_slow_intr_handler(struct adapter *adapter)
2573{
2574 u32 cause = t4_read_reg(adapter, A_PL_INT_CAUSE);
2575
2576 if (!(cause & GLBL_INTR_MASK))
2577 return 0;
2578 if (cause & F_CIM)
2579 cim_intr_handler(adapter);
2580 if (cause & F_MPS)
2581 mps_intr_handler(adapter);
2582 if (cause & F_NCSI)
2583 ncsi_intr_handler(adapter);
2584 if (cause & F_PL)
2585 pl_intr_handler(adapter);
2586 if (cause & F_SMB)
2587 smb_intr_handler(adapter);
2588 if (cause & F_XGMAC0)
2589 xgmac_intr_handler(adapter, 0);
2590 if (cause & F_XGMAC1)
2591 xgmac_intr_handler(adapter, 1);
2592 if (cause & F_XGMAC_KR0)
2593 xgmac_intr_handler(adapter, 2);
2594 if (cause & F_XGMAC_KR1)
2595 xgmac_intr_handler(adapter, 3);
2596 if (cause & F_PCIE)
2597 pcie_intr_handler(adapter);
2598 if (cause & F_MC)
2599 mem_intr_handler(adapter, MEM_MC);
2600 if (cause & F_EDC0)
2601 mem_intr_handler(adapter, MEM_EDC0);
2602 if (cause & F_EDC1)
2603 mem_intr_handler(adapter, MEM_EDC1);
2604 if (cause & F_LE)
2605 le_intr_handler(adapter);
2606 if (cause & F_TP)
2607 tp_intr_handler(adapter);
2608 if (cause & F_MA)
2609 ma_intr_handler(adapter);
2610 if (cause & F_PM_TX)
2611 pmtx_intr_handler(adapter);
2612 if (cause & F_PM_RX)
2613 pmrx_intr_handler(adapter);
2614 if (cause & F_ULP_RX)
2615 ulprx_intr_handler(adapter);
2616 if (cause & F_CPL_SWITCH)
2617 cplsw_intr_handler(adapter);
2618 if (cause & F_SGE)
2619 sge_intr_handler(adapter);
2620 if (cause & F_ULP_TX)
2621 ulptx_intr_handler(adapter);
2622
2623 /* Clear the interrupts just processed for which we are the master. */
2624 t4_write_reg(adapter, A_PL_INT_CAUSE, cause & GLBL_INTR_MASK);
2625 (void) t4_read_reg(adapter, A_PL_INT_CAUSE); /* flush */
2626 return 1;
2627}
2628
2629/**
2630 * t4_intr_enable - enable interrupts
2631 * @adapter: the adapter whose interrupts should be enabled
2632 *
2633 * Enable PF-specific interrupts for the calling function and the top-level
2634 * interrupt concentrator for global interrupts. Interrupts are already
2635 * enabled at each module, here we just enable the roots of the interrupt
2636 * hierarchies.
2637 *
2638 * Note: this function should be called only when the driver manages
2639 * non PF-specific interrupts from the various HW modules. Only one PCI
2640 * function at a time should be doing this.
2641 */
2642void t4_intr_enable(struct adapter *adapter)
2643{
2644 u32 pf = G_SOURCEPF(t4_read_reg(adapter, A_PL_WHOAMI));
2645
2646 t4_write_reg(adapter, A_SGE_INT_ENABLE3, F_ERR_CPL_EXCEED_IQE_SIZE |
2647 F_ERR_INVALID_CIDX_INC | F_ERR_CPL_OPCODE_0 |
2648 F_ERR_DROPPED_DB | F_ERR_DATA_CPL_ON_HIGH_QID1 |
2649 F_ERR_DATA_CPL_ON_HIGH_QID0 | F_ERR_BAD_DB_PIDX3 |
2650 F_ERR_BAD_DB_PIDX2 | F_ERR_BAD_DB_PIDX1 |
2651 F_ERR_BAD_DB_PIDX0 | F_ERR_ING_CTXT_PRIO |
2652 F_ERR_EGR_CTXT_PRIO | F_INGRESS_SIZE_ERR |
2653 F_EGRESS_SIZE_ERR);
2654 t4_write_reg(adapter, MYPF_REG(A_PL_PF_INT_ENABLE), PF_INTR_MASK);
2655 t4_set_reg_field(adapter, A_PL_INT_MAP0, 0, 1 << pf);
2656}
2657
2658/**
2659 * t4_intr_disable - disable interrupts
2660 * @adapter: the adapter whose interrupts should be disabled
2661 *
2662 * Disable interrupts. We only disable the top-level interrupt
2663 * concentrators. The caller must be a PCI function managing global
2664 * interrupts.
2665 */
2666void t4_intr_disable(struct adapter *adapter)
2667{
2668 u32 pf = G_SOURCEPF(t4_read_reg(adapter, A_PL_WHOAMI));
2669
2670 t4_write_reg(adapter, MYPF_REG(A_PL_PF_INT_ENABLE), 0);
2671 t4_set_reg_field(adapter, A_PL_INT_MAP0, 1 << pf, 0);
2672}
2673
2674/**
2675 * t4_intr_clear - clear all interrupts
2676 * @adapter: the adapter whose interrupts should be cleared
2677 *
2678 * Clears all interrupts. The caller must be a PCI function managing
2679 * global interrupts.
2680 */
2681void t4_intr_clear(struct adapter *adapter)
2682{
2683 static const unsigned int cause_reg[] = {
2684 A_SGE_INT_CAUSE1, A_SGE_INT_CAUSE2, A_SGE_INT_CAUSE3,
2685 A_PCIE_CORE_UTL_SYSTEM_BUS_AGENT_STATUS,
2686 A_PCIE_CORE_UTL_PCI_EXPRESS_PORT_STATUS,
2687 A_PCIE_NONFAT_ERR, A_PCIE_INT_CAUSE,
2688 A_MA_INT_WRAP_STATUS, A_MA_PARITY_ERROR_STATUS, A_MA_INT_CAUSE,
2689 A_EDC_INT_CAUSE, EDC_REG(A_EDC_INT_CAUSE, 1),
2690 A_CIM_HOST_INT_CAUSE, A_CIM_HOST_UPACC_INT_CAUSE,
2691 MYPF_REG(A_CIM_PF_HOST_INT_CAUSE),
2692 A_TP_INT_CAUSE,
2693 A_ULP_RX_INT_CAUSE, A_ULP_TX_INT_CAUSE,
2694 A_PM_RX_INT_CAUSE, A_PM_TX_INT_CAUSE,
2695 A_MPS_RX_PERR_INT_CAUSE,
2696 A_CPL_INTR_CAUSE,
2697 MYPF_REG(A_PL_PF_INT_CAUSE),
2698 A_PL_PL_INT_CAUSE,
2699 A_LE_DB_INT_CAUSE,
2700 };
2701
2702 unsigned int i;
2703
2704 for (i = 0; i < ARRAY_SIZE(cause_reg); ++i)
2705 t4_write_reg(adapter, cause_reg[i], 0xffffffff);
2706
2707 t4_write_reg(adapter, is_t4(adapter) ? A_MC_INT_CAUSE :
2708 A_MC_P_INT_CAUSE, 0xffffffff);
2709
2710 t4_write_reg(adapter, A_PL_INT_CAUSE, GLBL_INTR_MASK);
2711 (void) t4_read_reg(adapter, A_PL_INT_CAUSE); /* flush */
2712}
2713
2714/**
2715 * hash_mac_addr - return the hash value of a MAC address
2716 * @addr: the 48-bit Ethernet MAC address
2717 *
2718 * Hashes a MAC address according to the hash function used by HW inexact
2719 * (hash) address matching.
2720 */
2721static int hash_mac_addr(const u8 *addr)
2722{
2723 u32 a = ((u32)addr[0] << 16) | ((u32)addr[1] << 8) | addr[2];
2724 u32 b = ((u32)addr[3] << 16) | ((u32)addr[4] << 8) | addr[5];
2725 a ^= b;
2726 a ^= (a >> 12);
2727 a ^= (a >> 6);
2728 return a & 0x3f;
2729}
2730
2731/**
2732 * t4_config_rss_range - configure a portion of the RSS mapping table
2733 * @adapter: the adapter
2734 * @mbox: mbox to use for the FW command
2735 * @viid: virtual interface whose RSS subtable is to be written
2736 * @start: start entry in the table to write
2737 * @n: how many table entries to write
2738 * @rspq: values for the "response queue" (Ingress Queue) lookup table
2739 * @nrspq: number of values in @rspq
2740 *
2741 * Programs the selected part of the VI's RSS mapping table with the
2742 * provided values. If @nrspq < @n the supplied values are used repeatedly
2743 * until the full table range is populated.
2744 *
2745 * The caller must ensure the values in @rspq are in the range allowed for
2746 * @viid.
2747 */
2748int t4_config_rss_range(struct adapter *adapter, int mbox, unsigned int viid,
2749 int start, int n, const u16 *rspq, unsigned int nrspq)
2750{
2751 int ret;
2752 const u16 *rsp = rspq;
2753 const u16 *rsp_end = rspq + nrspq;
2754 struct fw_rss_ind_tbl_cmd cmd;
2755
2756 memset(&cmd, 0, sizeof(cmd));
2757 cmd.op_to_viid = htonl(V_FW_CMD_OP(FW_RSS_IND_TBL_CMD) |
2758 F_FW_CMD_REQUEST | F_FW_CMD_WRITE |
2759 V_FW_RSS_IND_TBL_CMD_VIID(viid));
2760 cmd.retval_len16 = htonl(FW_LEN16(cmd));
2761
2762
2763 /*
2764 * Each firmware RSS command can accommodate up to 32 RSS Ingress
2765 * Queue Identifiers. These Ingress Queue IDs are packed three to
2766 * a 32-bit word as 10-bit values with the upper remaining 2 bits
2767 * reserved.
2768 */
2769 while (n > 0) {
2770 int nq = min(n, 32);
2771 int nq_packed = 0;
2772 __be32 *qp = &cmd.iq0_to_iq2;
2773
2774 /*
2775 * Set up the firmware RSS command header to send the next
2776 * "nq" Ingress Queue IDs to the firmware.
2777 */
2778 cmd.niqid = htons(nq);
2779 cmd.startidx = htons(start);
2780
2781 /*
2782 * "nq" more done for the start of the next loop.
2783 */
2784 start += nq;
2785 n -= nq;
2786
2787 /*
2788 * While there are still Ingress Queue IDs to stuff into the
2789 * current firmware RSS command, retrieve them from the
2790 * Ingress Queue ID array and insert them into the command.
2791 */
2792 while (nq > 0) {
2793 /*
2794 * Grab up to the next 3 Ingress Queue IDs (wrapping
2795 * around the Ingress Queue ID array if necessary) and
2796 * insert them into the firmware RSS command at the
2797 * current 3-tuple position within the commad.
2798 */
2799 u16 qbuf[3];
2800 u16 *qbp = qbuf;
2801 int nqbuf = min(3, nq);
2802
2803 nq -= nqbuf;
2804 qbuf[0] = qbuf[1] = qbuf[2] = 0;
2805 while (nqbuf && nq_packed < 32) {
2806 nqbuf--;
2807 nq_packed++;
2808 *qbp++ = *rsp++;
2809 if (rsp >= rsp_end)
2810 rsp = rspq;
2811 }
2812 *qp++ = cpu_to_be32(V_FW_RSS_IND_TBL_CMD_IQ0(qbuf[0]) |
2813 V_FW_RSS_IND_TBL_CMD_IQ1(qbuf[1]) |
2814 V_FW_RSS_IND_TBL_CMD_IQ2(qbuf[2]));
2815 }
2816
2817 /*
2818 * Send this portion of the RRS table update to the firmware;
2819 * bail out on any errors.
2820 */
2821 ret = t4_wr_mbox(adapter, mbox, &cmd, sizeof(cmd), NULL);
2822 if (ret)
2823 return ret;
2824 }
2825
2826 return 0;
2827}
2828
2829/**
2830 * t4_config_glbl_rss - configure the global RSS mode
2831 * @adapter: the adapter
2832 * @mbox: mbox to use for the FW command
2833 * @mode: global RSS mode
2834 * @flags: mode-specific flags
2835 *
2836 * Sets the global RSS mode.
2837 */
2838int t4_config_glbl_rss(struct adapter *adapter, int mbox, unsigned int mode,
2839 unsigned int flags)
2840{
2841 struct fw_rss_glb_config_cmd c;
2842
2843 memset(&c, 0, sizeof(c));
2844 c.op_to_write = htonl(V_FW_CMD_OP(FW_RSS_GLB_CONFIG_CMD) |
2845 F_FW_CMD_REQUEST | F_FW_CMD_WRITE);
2846 c.retval_len16 = htonl(FW_LEN16(c));
2847 if (mode == FW_RSS_GLB_CONFIG_CMD_MODE_MANUAL) {
2848 c.u.manual.mode_pkd = htonl(V_FW_RSS_GLB_CONFIG_CMD_MODE(mode));
2849 } else if (mode == FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL) {
2850 c.u.basicvirtual.mode_pkd =
2851 htonl(V_FW_RSS_GLB_CONFIG_CMD_MODE(mode));
2852 c.u.basicvirtual.synmapen_to_hashtoeplitz = htonl(flags);
2853 } else
2854 return -EINVAL;
2855 return t4_wr_mbox(adapter, mbox, &c, sizeof(c), NULL);
2856}
2857
2858/**
2859 * t4_config_vi_rss - configure per VI RSS settings
2860 * @adapter: the adapter
2861 * @mbox: mbox to use for the FW command
2862 * @viid: the VI id
2863 * @flags: RSS flags
2864 * @defq: id of the default RSS queue for the VI.
2865 *
2866 * Configures VI-specific RSS properties.
2867 */
2868int t4_config_vi_rss(struct adapter *adapter, int mbox, unsigned int viid,
2869 unsigned int flags, unsigned int defq)
2870{
2871 struct fw_rss_vi_config_cmd c;
2872
2873 memset(&c, 0, sizeof(c));
2874 c.op_to_viid = htonl(V_FW_CMD_OP(FW_RSS_VI_CONFIG_CMD) |
2875 F_FW_CMD_REQUEST | F_FW_CMD_WRITE |
2876 V_FW_RSS_VI_CONFIG_CMD_VIID(viid));
2877 c.retval_len16 = htonl(FW_LEN16(c));
2878 c.u.basicvirtual.defaultq_to_udpen = htonl(flags |
2879 V_FW_RSS_VI_CONFIG_CMD_DEFAULTQ(defq));
2880 return t4_wr_mbox(adapter, mbox, &c, sizeof(c), NULL);
2881}
2882
2883/* Read an RSS table row */
2884static int rd_rss_row(struct adapter *adap, int row, u32 *val)
2885{
2886 t4_write_reg(adap, A_TP_RSS_LKP_TABLE, 0xfff00000 | row);
2887 return t4_wait_op_done_val(adap, A_TP_RSS_LKP_TABLE, F_LKPTBLROWVLD, 1,
2888 5, 0, val);
2889}
2890
2891/**
2892 * t4_read_rss - read the contents of the RSS mapping table
2893 * @adapter: the adapter
2894 * @map: holds the contents of the RSS mapping table
2895 *
2896 * Reads the contents of the RSS hash->queue mapping table.
2897 */
2898int t4_read_rss(struct adapter *adapter, u16 *map)
2899{
2900 u32 val;
2901 int i, ret;
2902
2903 for (i = 0; i < RSS_NENTRIES / 2; ++i) {
2904 ret = rd_rss_row(adapter, i, &val);
2905 if (ret)
2906 return ret;
2907 *map++ = G_LKPTBLQUEUE0(val);
2908 *map++ = G_LKPTBLQUEUE1(val);
2909 }
2910 return 0;
2911}
2912
2913/**
2914 * t4_read_rss_key - read the global RSS key
2915 * @adap: the adapter
2916 * @key: 10-entry array holding the 320-bit RSS key
2917 *
2918 * Reads the global 320-bit RSS key.
2919 */
2920void t4_read_rss_key(struct adapter *adap, u32 *key)
2921{
2922 t4_read_indirect(adap, A_TP_PIO_ADDR, A_TP_PIO_DATA, key, 10,
2923 A_TP_RSS_SECRET_KEY0);
2924}
2925
2926/**
2927 * t4_write_rss_key - program one of the RSS keys
2928 * @adap: the adapter
2929 * @key: 10-entry array holding the 320-bit RSS key
2930 * @idx: which RSS key to write
2931 *
2932 * Writes one of the RSS keys with the given 320-bit value. If @idx is
2933 * 0..15 the corresponding entry in the RSS key table is written,
2934 * otherwise the global RSS key is written.
2935 */
2936void t4_write_rss_key(struct adapter *adap, const u32 *key, int idx)
2937{
2938 t4_write_indirect(adap, A_TP_PIO_ADDR, A_TP_PIO_DATA, key, 10,
2939 A_TP_RSS_SECRET_KEY0);
2940 if (idx >= 0 && idx < 16)
2941 t4_write_reg(adap, A_TP_RSS_CONFIG_VRT,
2942 V_KEYWRADDR(idx) | F_KEYWREN);
2943}
2944
2945/**
2946 * t4_read_rss_pf_config - read PF RSS Configuration Table
2947 * @adapter: the adapter
2948 * @index: the entry in the PF RSS table to read
2949 * @valp: where to store the returned value
2950 *
2951 * Reads the PF RSS Configuration Table at the specified index and returns
2952 * the value found there.
2953 */
2954void t4_read_rss_pf_config(struct adapter *adapter, unsigned int index, u32 *valp)
2955{
2956 t4_read_indirect(adapter, A_TP_PIO_ADDR, A_TP_PIO_DATA,
2957 valp, 1, A_TP_RSS_PF0_CONFIG + index);
2958}
2959
2960/**
2961 * t4_write_rss_pf_config - write PF RSS Configuration Table
2962 * @adapter: the adapter
2963 * @index: the entry in the VF RSS table to read
2964 * @val: the value to store
2965 *
2966 * Writes the PF RSS Configuration Table at the specified index with the
2967 * specified value.
2968 */
2969void t4_write_rss_pf_config(struct adapter *adapter, unsigned int index, u32 val)
2970{
2971 t4_write_indirect(adapter, A_TP_PIO_ADDR, A_TP_PIO_DATA,
2972 &val, 1, A_TP_RSS_PF0_CONFIG + index);
2973}
2974
2975/**
2976 * t4_read_rss_vf_config - read VF RSS Configuration Table
2977 * @adapter: the adapter
2978 * @index: the entry in the VF RSS table to read
2979 * @vfl: where to store the returned VFL
2980 * @vfh: where to store the returned VFH
2981 *
2982 * Reads the VF RSS Configuration Table at the specified index and returns
2983 * the (VFL, VFH) values found there.
2984 */
2985void t4_read_rss_vf_config(struct adapter *adapter, unsigned int index,
2986 u32 *vfl, u32 *vfh)
2987{
2988 u32 vrt;
2989
2990 /*
2991 * Request that the index'th VF Table values be read into VFL/VFH.
2992 */
2993 vrt = t4_read_reg(adapter, A_TP_RSS_CONFIG_VRT);
2994 vrt &= ~(F_VFRDRG | V_VFWRADDR(M_VFWRADDR) | F_VFWREN | F_KEYWREN);
2995 vrt |= V_VFWRADDR(index) | F_VFRDEN;
2996 t4_write_reg(adapter, A_TP_RSS_CONFIG_VRT, vrt);
2997
2998 /*
2999 * Grab the VFL/VFH values ...
3000 */
3001 t4_read_indirect(adapter, A_TP_PIO_ADDR, A_TP_PIO_DATA,
3002 vfl, 1, A_TP_RSS_VFL_CONFIG);
3003 t4_read_indirect(adapter, A_TP_PIO_ADDR, A_TP_PIO_DATA,
3004 vfh, 1, A_TP_RSS_VFH_CONFIG);
3005}
3006
3007/**
3008 * t4_write_rss_vf_config - write VF RSS Configuration Table
3009 *
3010 * @adapter: the adapter
3011 * @index: the entry in the VF RSS table to write
3012 * @vfl: the VFL to store
3013 * @vfh: the VFH to store
3014 *
3015 * Writes the VF RSS Configuration Table at the specified index with the
3016 * specified (VFL, VFH) values.
3017 */
3018void t4_write_rss_vf_config(struct adapter *adapter, unsigned int index,
3019 u32 vfl, u32 vfh)
3020{
3021 u32 vrt;
3022
3023 /*
3024 * Load up VFL/VFH with the values to be written ...
3025 */
3026 t4_write_indirect(adapter, A_TP_PIO_ADDR, A_TP_PIO_DATA,
3027 &vfl, 1, A_TP_RSS_VFL_CONFIG);
3028 t4_write_indirect(adapter, A_TP_PIO_ADDR, A_TP_PIO_DATA,
3029 &vfh, 1, A_TP_RSS_VFH_CONFIG);
3030
3031 /*
3032 * Write the VFL/VFH into the VF Table at index'th location.
3033 */
3034 vrt = t4_read_reg(adapter, A_TP_RSS_CONFIG_VRT);
3035 vrt &= ~(F_VFRDRG | F_VFRDEN | V_VFWRADDR(M_VFWRADDR) | F_KEYWREN);
3036 vrt |= V_VFWRADDR(index) | F_VFWREN;
3037 t4_write_reg(adapter, A_TP_RSS_CONFIG_VRT, vrt);
3038}
3039
3040/**
3041 * t4_read_rss_pf_map - read PF RSS Map
3042 * @adapter: the adapter
3043 *
3044 * Reads the PF RSS Map register and returns its value.
3045 */
3046u32 t4_read_rss_pf_map(struct adapter *adapter)
3047{
3048 u32 pfmap;
3049
3050 t4_read_indirect(adapter, A_TP_PIO_ADDR, A_TP_PIO_DATA,
3051 &pfmap, 1, A_TP_RSS_PF_MAP);
3052 return pfmap;
3053}
3054
3055/**
3056 * t4_write_rss_pf_map - write PF RSS Map
3057 * @adapter: the adapter
3058 * @pfmap: PF RSS Map value
3059 *
3060 * Writes the specified value to the PF RSS Map register.
3061 */
3062void t4_write_rss_pf_map(struct adapter *adapter, u32 pfmap)
3063{
3064 t4_write_indirect(adapter, A_TP_PIO_ADDR, A_TP_PIO_DATA,
3065 &pfmap, 1, A_TP_RSS_PF_MAP);
3066}
3067
3068/**
3069 * t4_read_rss_pf_mask - read PF RSS Mask
3070 * @adapter: the adapter
3071 *
3072 * Reads the PF RSS Mask register and returns its value.
3073 */
3074u32 t4_read_rss_pf_mask(struct adapter *adapter)
3075{
3076 u32 pfmask;
3077
3078 t4_read_indirect(adapter, A_TP_PIO_ADDR, A_TP_PIO_DATA,
3079 &pfmask, 1, A_TP_RSS_PF_MSK);
3080 return pfmask;
3081}
3082
3083/**
3084 * t4_write_rss_pf_mask - write PF RSS Mask
3085 * @adapter: the adapter
3086 * @pfmask: PF RSS Mask value
3087 *
3088 * Writes the specified value to the PF RSS Mask register.
3089 */
3090void t4_write_rss_pf_mask(struct adapter *adapter, u32 pfmask)
3091{
3092 t4_write_indirect(adapter, A_TP_PIO_ADDR, A_TP_PIO_DATA,
3093 &pfmask, 1, A_TP_RSS_PF_MSK);
3094}
3095
3096/**
3097 * t4_set_filter_mode - configure the optional components of filter tuples
3098 * @adap: the adapter
3099 * @mode_map: a bitmap selcting which optional filter components to enable
3100 *
3101 * Sets the filter mode by selecting the optional components to enable
3102 * in filter tuples. Returns 0 on success and a negative error if the
3103 * requested mode needs more bits than are available for optional
3104 * components.
3105 */
3106int t4_set_filter_mode(struct adapter *adap, unsigned int mode_map)
3107{
3108 static u8 width[] = { 1, 3, 17, 17, 8, 8, 16, 9, 3, 1 };
3109
3110 int i, nbits = 0;
3111
3112 for (i = S_FCOE; i <= S_FRAGMENTATION; i++)
3113 if (mode_map & (1 << i))
3114 nbits += width[i];
3115 if (nbits > FILTER_OPT_LEN)
3116 return -EINVAL;
3117 t4_write_indirect(adap, A_TP_PIO_ADDR, A_TP_PIO_DATA, &mode_map, 1,
3118 A_TP_VLAN_PRI_MAP);
3119 return 0;
3120}
3121
3122/**
3123 * t4_tp_get_tcp_stats - read TP's TCP MIB counters
3124 * @adap: the adapter
3125 * @v4: holds the TCP/IP counter values
3126 * @v6: holds the TCP/IPv6 counter values
3127 *
3128 * Returns the values of TP's TCP/IP and TCP/IPv6 MIB counters.
3129 * Either @v4 or @v6 may be %NULL to skip the corresponding stats.
3130 */
3131void t4_tp_get_tcp_stats(struct adapter *adap, struct tp_tcp_stats *v4,
3132 struct tp_tcp_stats *v6)
3133{
3134 u32 val[A_TP_MIB_TCP_RXT_SEG_LO - A_TP_MIB_TCP_OUT_RST + 1];
3135
3136#define STAT_IDX(x) ((A_TP_MIB_TCP_##x) - A_TP_MIB_TCP_OUT_RST)
3137#define STAT(x) val[STAT_IDX(x)]
3138#define STAT64(x) (((u64)STAT(x##_HI) << 32) | STAT(x##_LO))
3139
3140 if (v4) {
3141 t4_read_indirect(adap, A_TP_MIB_INDEX, A_TP_MIB_DATA, val,
3142 ARRAY_SIZE(val), A_TP_MIB_TCP_OUT_RST);
3143 v4->tcpOutRsts = STAT(OUT_RST);
3144 v4->tcpInSegs = STAT64(IN_SEG);
3145 v4->tcpOutSegs = STAT64(OUT_SEG);
3146 v4->tcpRetransSegs = STAT64(RXT_SEG);
3147 }
3148 if (v6) {
3149 t4_read_indirect(adap, A_TP_MIB_INDEX, A_TP_MIB_DATA, val,
3150 ARRAY_SIZE(val), A_TP_MIB_TCP_V6OUT_RST);
3151 v6->tcpOutRsts = STAT(OUT_RST);
3152 v6->tcpInSegs = STAT64(IN_SEG);
3153 v6->tcpOutSegs = STAT64(OUT_SEG);
3154 v6->tcpRetransSegs = STAT64(RXT_SEG);
3155 }
3156#undef STAT64
3157#undef STAT
3158#undef STAT_IDX
3159}
3160
3161/**
3162 * t4_tp_get_err_stats - read TP's error MIB counters
3163 * @adap: the adapter
3164 * @st: holds the counter values
3165 *
3166 * Returns the values of TP's error counters.
3167 */
3168void t4_tp_get_err_stats(struct adapter *adap, struct tp_err_stats *st)
3169{
3170 t4_read_indirect(adap, A_TP_MIB_INDEX, A_TP_MIB_DATA, st->macInErrs,
3171 12, A_TP_MIB_MAC_IN_ERR_0);
3172 t4_read_indirect(adap, A_TP_MIB_INDEX, A_TP_MIB_DATA, st->tnlCongDrops,
3173 8, A_TP_MIB_TNL_CNG_DROP_0);
3174 t4_read_indirect(adap, A_TP_MIB_INDEX, A_TP_MIB_DATA, st->tnlTxDrops,
3175 4, A_TP_MIB_TNL_DROP_0);
3176 t4_read_indirect(adap, A_TP_MIB_INDEX, A_TP_MIB_DATA, st->ofldVlanDrops,
3177 4, A_TP_MIB_OFD_VLN_DROP_0);
3178 t4_read_indirect(adap, A_TP_MIB_INDEX, A_TP_MIB_DATA, st->tcp6InErrs,
3179 4, A_TP_MIB_TCP_V6IN_ERR_0);
3180 t4_read_indirect(adap, A_TP_MIB_INDEX, A_TP_MIB_DATA, &st->ofldNoNeigh,
3181 2, A_TP_MIB_OFD_ARP_DROP);
3182}
3183
3184/**
3185 * t4_tp_get_proxy_stats - read TP's proxy MIB counters
3186 * @adap: the adapter
3187 * @st: holds the counter values
3188 *
3189 * Returns the values of TP's proxy counters.
3190 */
3191void t4_tp_get_proxy_stats(struct adapter *adap, struct tp_proxy_stats *st)
3192{
3193 t4_read_indirect(adap, A_TP_MIB_INDEX, A_TP_MIB_DATA, st->proxy,
3194 4, A_TP_MIB_TNL_LPBK_0);
3195}
3196
3197/**
3198 * t4_tp_get_cpl_stats - read TP's CPL MIB counters
3199 * @adap: the adapter
3200 * @st: holds the counter values
3201 *
3202 * Returns the values of TP's CPL counters.
3203 */
3204void t4_tp_get_cpl_stats(struct adapter *adap, struct tp_cpl_stats *st)
3205{
3206 t4_read_indirect(adap, A_TP_MIB_INDEX, A_TP_MIB_DATA, st->req,
3207 8, A_TP_MIB_CPL_IN_REQ_0);
3208}
3209
3210/**
3211 * t4_tp_get_rdma_stats - read TP's RDMA MIB counters
3212 * @adap: the adapter
3213 * @st: holds the counter values
3214 *
3215 * Returns the values of TP's RDMA counters.
3216 */
3217void t4_tp_get_rdma_stats(struct adapter *adap, struct tp_rdma_stats *st)
3218{
3219 t4_read_indirect(adap, A_TP_MIB_INDEX, A_TP_MIB_DATA, &st->rqe_dfr_mod,
3220 2, A_TP_MIB_RQE_DFR_MOD);
3221}
3222
3223/**
3224 * t4_get_fcoe_stats - read TP's FCoE MIB counters for a port
3225 * @adap: the adapter
3226 * @idx: the port index
3227 * @st: holds the counter values
3228 *
3229 * Returns the values of TP's FCoE counters for the selected port.
3230 */
3231void t4_get_fcoe_stats(struct adapter *adap, unsigned int idx,
3232 struct tp_fcoe_stats *st)
3233{
3234 u32 val[2];
3235
3236 t4_read_indirect(adap, A_TP_MIB_INDEX, A_TP_MIB_DATA, &st->framesDDP,
3237 1, A_TP_MIB_FCOE_DDP_0 + idx);
3238 t4_read_indirect(adap, A_TP_MIB_INDEX, A_TP_MIB_DATA, &st->framesDrop,
3239 1, A_TP_MIB_FCOE_DROP_0 + idx);
3240 t4_read_indirect(adap, A_TP_MIB_INDEX, A_TP_MIB_DATA, val,
3241 2, A_TP_MIB_FCOE_BYTE_0_HI + 2 * idx);
3242 st->octetsDDP = ((u64)val[0] << 32) | val[1];
3243}
3244
3245/**
3246 * t4_get_usm_stats - read TP's non-TCP DDP MIB counters
3247 * @adap: the adapter
3248 * @st: holds the counter values
3249 *
3250 * Returns the values of TP's counters for non-TCP directly-placed packets.
3251 */
3252void t4_get_usm_stats(struct adapter *adap, struct tp_usm_stats *st)
3253{
3254 u32 val[4];
3255
3256 t4_read_indirect(adap, A_TP_MIB_INDEX, A_TP_MIB_DATA, val, 4,
3257 A_TP_MIB_USM_PKTS);
3258 st->frames = val[0];
3259 st->drops = val[1];
3260 st->octets = ((u64)val[2] << 32) | val[3];
3261}
3262
3263/**
3264 * t4_read_mtu_tbl - returns the values in the HW path MTU table
3265 * @adap: the adapter
3266 * @mtus: where to store the MTU values
3267 * @mtu_log: where to store the MTU base-2 log (may be %NULL)
3268 *
3269 * Reads the HW path MTU table.
3270 */
3271void t4_read_mtu_tbl(struct adapter *adap, u16 *mtus, u8 *mtu_log)
3272{
3273 u32 v;
3274 int i;
3275
3276 for (i = 0; i < NMTUS; ++i) {
3277 t4_write_reg(adap, A_TP_MTU_TABLE,
3278 V_MTUINDEX(0xff) | V_MTUVALUE(i));
3279 v = t4_read_reg(adap, A_TP_MTU_TABLE);
3280 mtus[i] = G_MTUVALUE(v);
3281 if (mtu_log)
3282 mtu_log[i] = G_MTUWIDTH(v);
3283 }
3284}
3285
3286/**
3287 * t4_read_cong_tbl - reads the congestion control table
3288 * @adap: the adapter
3289 * @incr: where to store the alpha values
3290 *
3291 * Reads the additive increments programmed into the HW congestion
3292 * control table.
3293 */
3294void t4_read_cong_tbl(struct adapter *adap, u16 incr[NMTUS][NCCTRL_WIN])
3295{
3296 unsigned int mtu, w;
3297
3298 for (mtu = 0; mtu < NMTUS; ++mtu)
3299 for (w = 0; w < NCCTRL_WIN; ++w) {
3300 t4_write_reg(adap, A_TP_CCTRL_TABLE,
3301 V_ROWINDEX(0xffff) | (mtu << 5) | w);
3302 incr[mtu][w] = (u16)t4_read_reg(adap,
3303 A_TP_CCTRL_TABLE) & 0x1fff;
3304 }
3305}
3306
3307/**
3308 * t4_read_pace_tbl - read the pace table
3309 * @adap: the adapter
3310 * @pace_vals: holds the returned values
3311 *
3312 * Returns the values of TP's pace table in microseconds.
3313 */
3314void t4_read_pace_tbl(struct adapter *adap, unsigned int pace_vals[NTX_SCHED])
3315{
3316 unsigned int i, v;
3317
3318 for (i = 0; i < NTX_SCHED; i++) {
3319 t4_write_reg(adap, A_TP_PACE_TABLE, 0xffff0000 + i);
3320 v = t4_read_reg(adap, A_TP_PACE_TABLE);
3321 pace_vals[i] = dack_ticks_to_usec(adap, v);
3322 }
3323}
3324
3325/**
3326 * t4_tp_wr_bits_indirect - set/clear bits in an indirect TP register
3327 * @adap: the adapter
3328 * @addr: the indirect TP register address
3329 * @mask: specifies the field within the register to modify
3330 * @val: new value for the field
3331 *
3332 * Sets a field of an indirect TP register to the given value.
3333 */
3334void t4_tp_wr_bits_indirect(struct adapter *adap, unsigned int addr,
3335 unsigned int mask, unsigned int val)
3336{
3337 t4_write_reg(adap, A_TP_PIO_ADDR, addr);
3338 val |= t4_read_reg(adap, A_TP_PIO_DATA) & ~mask;
3339 t4_write_reg(adap, A_TP_PIO_DATA, val);
3340}
3341
3342/**
3343 * init_cong_ctrl - initialize congestion control parameters
3344 * @a: the alpha values for congestion control
3345 * @b: the beta values for congestion control
3346 *
3347 * Initialize the congestion control parameters.
3348 */
3349static void __devinit init_cong_ctrl(unsigned short *a, unsigned short *b)
3350{
3351 a[0] = a[1] = a[2] = a[3] = a[4] = a[5] = a[6] = a[7] = a[8] = 1;
3352 a[9] = 2;
3353 a[10] = 3;
3354 a[11] = 4;
3355 a[12] = 5;
3356 a[13] = 6;
3357 a[14] = 7;
3358 a[15] = 8;
3359 a[16] = 9;
3360 a[17] = 10;
3361 a[18] = 14;
3362 a[19] = 17;
3363 a[20] = 21;
3364 a[21] = 25;
3365 a[22] = 30;
3366 a[23] = 35;
3367 a[24] = 45;
3368 a[25] = 60;
3369 a[26] = 80;
3370 a[27] = 100;
3371 a[28] = 200;
3372 a[29] = 300;
3373 a[30] = 400;
3374 a[31] = 500;
3375
3376 b[0] = b[1] = b[2] = b[3] = b[4] = b[5] = b[6] = b[7] = b[8] = 0;
3377 b[9] = b[10] = 1;
3378 b[11] = b[12] = 2;
3379 b[13] = b[14] = b[15] = b[16] = 3;
3380 b[17] = b[18] = b[19] = b[20] = b[21] = 4;
3381 b[22] = b[23] = b[24] = b[25] = b[26] = b[27] = 5;
3382 b[28] = b[29] = 6;
3383 b[30] = b[31] = 7;
3384}
3385
3386/* The minimum additive increment value for the congestion control table */
3387#define CC_MIN_INCR 2U
3388
3389/**
3390 * t4_load_mtus - write the MTU and congestion control HW tables
3391 * @adap: the adapter
3392 * @mtus: the values for the MTU table
3393 * @alpha: the values for the congestion control alpha parameter
3394 * @beta: the values for the congestion control beta parameter
3395 *
3396 * Write the HW MTU table with the supplied MTUs and the high-speed
3397 * congestion control table with the supplied alpha, beta, and MTUs.
3398 * We write the two tables together because the additive increments
3399 * depend on the MTUs.
3400 */
3401void t4_load_mtus(struct adapter *adap, const unsigned short *mtus,
3402 const unsigned short *alpha, const unsigned short *beta)
3403{
3404 static const unsigned int avg_pkts[NCCTRL_WIN] = {
3405 2, 6, 10, 14, 20, 28, 40, 56, 80, 112, 160, 224, 320, 448, 640,
3406 896, 1281, 1792, 2560, 3584, 5120, 7168, 10240, 14336, 20480,
3407 28672, 40960, 57344, 81920, 114688, 163840, 229376
3408 };
3409
3410 unsigned int i, w;
3411
3412 for (i = 0; i < NMTUS; ++i) {
3413 unsigned int mtu = mtus[i];
3414 unsigned int log2 = fls(mtu);
3415
3416 if (!(mtu & ((1 << log2) >> 2))) /* round */
3417 log2--;
3418 t4_write_reg(adap, A_TP_MTU_TABLE, V_MTUINDEX(i) |
3419 V_MTUWIDTH(log2) | V_MTUVALUE(mtu));
3420
3421 for (w = 0; w < NCCTRL_WIN; ++w) {
3422 unsigned int inc;
3423
3424 inc = max(((mtu - 40) * alpha[w]) / avg_pkts[w],
3425 CC_MIN_INCR);
3426
3427 t4_write_reg(adap, A_TP_CCTRL_TABLE, (i << 21) |
3428 (w << 16) | (beta[w] << 13) | inc);
3429 }
3430 }
3431}
3432
3433/**
3434 * t4_set_pace_tbl - set the pace table
3435 * @adap: the adapter
3436 * @pace_vals: the pace values in microseconds
3437 * @start: index of the first entry in the HW pace table to set
3438 * @n: how many entries to set
3439 *
3440 * Sets (a subset of the) HW pace table.
3441 */
3442int t4_set_pace_tbl(struct adapter *adap, const unsigned int *pace_vals,
3443 unsigned int start, unsigned int n)
3444{
3445 unsigned int vals[NTX_SCHED], i;
3446 unsigned int tick_ns = dack_ticks_to_usec(adap, 1000);
3447
3448 if (n > NTX_SCHED)
3449 return -ERANGE;
3450
3451 /* convert values from us to dack ticks, rounding to closest value */
3452 for (i = 0; i < n; i++, pace_vals++) {
3453 vals[i] = (1000 * *pace_vals + tick_ns / 2) / tick_ns;
3454 if (vals[i] > 0x7ff)
3455 return -ERANGE;
3456 if (*pace_vals && vals[i] == 0)
3457 return -ERANGE;
3458 }
3459 for (i = 0; i < n; i++, start++)
3460 t4_write_reg(adap, A_TP_PACE_TABLE, (start << 16) | vals[i]);
3461 return 0;
3462}
3463
3464/**
3465 * t4_set_sched_bps - set the bit rate for a HW traffic scheduler
3466 * @adap: the adapter
3467 * @kbps: target rate in Kbps
3468 * @sched: the scheduler index
3469 *
3470 * Configure a Tx HW scheduler for the target rate.
3471 */
3472int t4_set_sched_bps(struct adapter *adap, int sched, unsigned int kbps)
3473{
3474 unsigned int v, tps, cpt, bpt, delta, mindelta = ~0;
3475 unsigned int clk = adap->params.vpd.cclk * 1000;
3476 unsigned int selected_cpt = 0, selected_bpt = 0;
3477
3478 if (kbps > 0) {
3479 kbps *= 125; /* -> bytes */
3480 for (cpt = 1; cpt <= 255; cpt++) {
3481 tps = clk / cpt;
3482 bpt = (kbps + tps / 2) / tps;
3483 if (bpt > 0 && bpt <= 255) {
3484 v = bpt * tps;
3485 delta = v >= kbps ? v - kbps : kbps - v;
3486 if (delta < mindelta) {
3487 mindelta = delta;
3488 selected_cpt = cpt;
3489 selected_bpt = bpt;
3490 }
3491 } else if (selected_cpt)
3492 break;
3493 }
3494 if (!selected_cpt)
3495 return -EINVAL;
3496 }
3497 t4_write_reg(adap, A_TP_TM_PIO_ADDR,
3498 A_TP_TX_MOD_Q1_Q0_RATE_LIMIT - sched / 2);
3499 v = t4_read_reg(adap, A_TP_TM_PIO_DATA);
3500 if (sched & 1)
3501 v = (v & 0xffff) | (selected_cpt << 16) | (selected_bpt << 24);
3502 else
3503 v = (v & 0xffff0000) | selected_cpt | (selected_bpt << 8);
3504 t4_write_reg(adap, A_TP_TM_PIO_DATA, v);
3505 return 0;
3506}
3507
3508/**
3509 * t4_set_sched_ipg - set the IPG for a Tx HW packet rate scheduler
3510 * @adap: the adapter
3511 * @sched: the scheduler index
3512 * @ipg: the interpacket delay in tenths of nanoseconds
3513 *
3514 * Set the interpacket delay for a HW packet rate scheduler.
3515 */
3516int t4_set_sched_ipg(struct adapter *adap, int sched, unsigned int ipg)
3517{
3518 unsigned int v, addr = A_TP_TX_MOD_Q1_Q0_TIMER_SEPARATOR - sched / 2;
3519
3520 /* convert ipg to nearest number of core clocks */
3521 ipg *= core_ticks_per_usec(adap);
3522 ipg = (ipg + 5000) / 10000;
3523 if (ipg > M_TXTIMERSEPQ0)
3524 return -EINVAL;
3525
3526 t4_write_reg(adap, A_TP_TM_PIO_ADDR, addr);
3527 v = t4_read_reg(adap, A_TP_TM_PIO_DATA);
3528 if (sched & 1)
3529 v = (v & V_TXTIMERSEPQ0(M_TXTIMERSEPQ0)) | V_TXTIMERSEPQ1(ipg);
3530 else
3531 v = (v & V_TXTIMERSEPQ1(M_TXTIMERSEPQ1)) | V_TXTIMERSEPQ0(ipg);
3532 t4_write_reg(adap, A_TP_TM_PIO_DATA, v);
3533 t4_read_reg(adap, A_TP_TM_PIO_DATA);
3534 return 0;
3535}
3536
3537/**
3538 * t4_get_tx_sched - get the configuration of a Tx HW traffic scheduler
3539 * @adap: the adapter
3540 * @sched: the scheduler index
3541 * @kbps: the byte rate in Kbps
3542 * @ipg: the interpacket delay in tenths of nanoseconds
3543 *
3544 * Return the current configuration of a HW Tx scheduler.
3545 */
3546void t4_get_tx_sched(struct adapter *adap, unsigned int sched, unsigned int *kbps,
3547 unsigned int *ipg)
3548{
3549 unsigned int v, addr, bpt, cpt;
3550
3551 if (kbps) {
3552 addr = A_TP_TX_MOD_Q1_Q0_RATE_LIMIT - sched / 2;
3553 t4_write_reg(adap, A_TP_TM_PIO_ADDR, addr);
3554 v = t4_read_reg(adap, A_TP_TM_PIO_DATA);
3555 if (sched & 1)
3556 v >>= 16;
3557 bpt = (v >> 8) & 0xff;
3558 cpt = v & 0xff;
3559 if (!cpt)
3560 *kbps = 0; /* scheduler disabled */
3561 else {
3562 v = (adap->params.vpd.cclk * 1000) / cpt; /* ticks/s */
3563 *kbps = (v * bpt) / 125;
3564 }
3565 }
3566 if (ipg) {
3567 addr = A_TP_TX_MOD_Q1_Q0_TIMER_SEPARATOR - sched / 2;
3568 t4_write_reg(adap, A_TP_TM_PIO_ADDR, addr);
3569 v = t4_read_reg(adap, A_TP_TM_PIO_DATA);
3570 if (sched & 1)
3571 v >>= 16;
3572 v &= 0xffff;
3573 *ipg = (10000 * v) / core_ticks_per_usec(adap);
3574 }
3575}
3576
3577/*
3578 * Calculates a rate in bytes/s given the number of 256-byte units per 4K core
3579 * clocks. The formula is
3580 *
3581 * bytes/s = bytes256 * 256 * ClkFreq / 4096
3582 *
3583 * which is equivalent to
3584 *
3585 * bytes/s = 62.5 * bytes256 * ClkFreq_ms
3586 */
3587static u64 chan_rate(struct adapter *adap, unsigned int bytes256)
3588{
3589 u64 v = bytes256 * adap->params.vpd.cclk;
3590
3591 return v * 62 + v / 2;
3592}
3593
3594/**
3595 * t4_get_chan_txrate - get the current per channel Tx rates
3596 * @adap: the adapter
3597 * @nic_rate: rates for NIC traffic
3598 * @ofld_rate: rates for offloaded traffic
3599 *
3600 * Return the current Tx rates in bytes/s for NIC and offloaded traffic
3601 * for each channel.
3602 */
3603void t4_get_chan_txrate(struct adapter *adap, u64 *nic_rate, u64 *ofld_rate)
3604{
3605 u32 v;
3606
3607 v = t4_read_reg(adap, A_TP_TX_TRATE);
3608 nic_rate[0] = chan_rate(adap, G_TNLRATE0(v));
3609 nic_rate[1] = chan_rate(adap, G_TNLRATE1(v));
3610 nic_rate[2] = chan_rate(adap, G_TNLRATE2(v));
3611 nic_rate[3] = chan_rate(adap, G_TNLRATE3(v));
3612
3613 v = t4_read_reg(adap, A_TP_TX_ORATE);
3614 ofld_rate[0] = chan_rate(adap, G_OFDRATE0(v));
3615 ofld_rate[1] = chan_rate(adap, G_OFDRATE1(v));
3616 ofld_rate[2] = chan_rate(adap, G_OFDRATE2(v));
3617 ofld_rate[3] = chan_rate(adap, G_OFDRATE3(v));
3618}
3619
3620/**
3621 * t4_set_trace_filter - configure one of the tracing filters
3622 * @adap: the adapter
3623 * @tp: the desired trace filter parameters
3624 * @idx: which filter to configure
3625 * @enable: whether to enable or disable the filter
3626 *
|
3736
3737 ofst = (A_MPS_TRC_FILTER1_MATCH - A_MPS_TRC_FILTER0_MATCH) * idx;
3738 data_reg = A_MPS_TRC_FILTER0_MATCH + ofst;
3739 mask_reg = A_MPS_TRC_FILTER0_DONT_CARE + ofst;
3740
3741 for (i = 0; i < TRACE_LEN / 4; i++, data_reg += 4, mask_reg += 4) {
3742 tp->mask[i] = ~t4_read_reg(adap, mask_reg);
3743 tp->data[i] = t4_read_reg(adap, data_reg) & tp->mask[i];
3744 }
3745}
3746
3747/**
3748 * t4_pmtx_get_stats - returns the HW stats from PMTX
3749 * @adap: the adapter
3750 * @cnt: where to store the count statistics
3751 * @cycles: where to store the cycle statistics
3752 *
3753 * Returns performance statistics from PMTX.
3754 */
3755void t4_pmtx_get_stats(struct adapter *adap, u32 cnt[], u64 cycles[])
3756{
3757 int i;
3758 u32 data[2];
3759
3760 for (i = 0; i < PM_NSTATS; i++) {
3761 t4_write_reg(adap, A_PM_TX_STAT_CONFIG, i + 1);
3762 cnt[i] = t4_read_reg(adap, A_PM_TX_STAT_COUNT);
3763 if (is_t4(adap))
3764 cycles[i] = t4_read_reg64(adap, A_PM_TX_STAT_LSB);
3765 else {
3766 t4_read_indirect(adap, A_PM_TX_DBG_CTRL,
3767 A_PM_TX_DBG_DATA, data, 2,
3768 A_PM_TX_DBG_STAT_MSB);
3769 cycles[i] = (((u64)data[0] << 32) | data[1]);
3770 }
3771 }
3772}
3773
3774/**
3775 * t4_pmrx_get_stats - returns the HW stats from PMRX
3776 * @adap: the adapter
3777 * @cnt: where to store the count statistics
3778 * @cycles: where to store the cycle statistics
3779 *
3780 * Returns performance statistics from PMRX.
3781 */
3782void t4_pmrx_get_stats(struct adapter *adap, u32 cnt[], u64 cycles[])
3783{
3784 int i;
3785 u32 data[2];
3786
3787 for (i = 0; i < PM_NSTATS; i++) {
3788 t4_write_reg(adap, A_PM_RX_STAT_CONFIG, i + 1);
3789 cnt[i] = t4_read_reg(adap, A_PM_RX_STAT_COUNT);
3790 if (is_t4(adap))
3791 cycles[i] = t4_read_reg64(adap, A_PM_RX_STAT_LSB);
3792 else {
3793 t4_read_indirect(adap, A_PM_RX_DBG_CTRL,
3794 A_PM_RX_DBG_DATA, data, 2,
3795 A_PM_RX_DBG_STAT_MSB);
3796 cycles[i] = (((u64)data[0] << 32) | data[1]);
3797 }
3798 }
3799}
3800
3801/**
3802 * get_mps_bg_map - return the buffer groups associated with a port
3803 * @adap: the adapter
3804 * @idx: the port index
3805 *
3806 * Returns a bitmap indicating which MPS buffer groups are associated
3807 * with the given port. Bit i is set if buffer group i is used by the
3808 * port.
3809 */
3810static unsigned int get_mps_bg_map(struct adapter *adap, int idx)
3811{
3812 u32 n = G_NUMPORTS(t4_read_reg(adap, A_MPS_CMN_CTL));
3813
3814 if (n == 0)
3815 return idx == 0 ? 0xf : 0;
3816 if (n == 1)
3817 return idx < 2 ? (3 << (2 * idx)) : 0;
3818 return 1 << idx;
3819}
3820
3821/**
3822 * t4_get_port_stats_offset - collect port stats relative to a previous
3823 * snapshot
3824 * @adap: The adapter
3825 * @idx: The port
3826 * @stats: Current stats to fill
3827 * @offset: Previous stats snapshot
3828 */
3829void t4_get_port_stats_offset(struct adapter *adap, int idx,
3830 struct port_stats *stats,
3831 struct port_stats *offset)
3832{
3833 u64 *s, *o;
3834 int i;
3835
3836 t4_get_port_stats(adap, idx, stats);
3837 for (i = 0, s = (u64 *)stats, o = (u64 *)offset ;
3838 i < (sizeof(struct port_stats)/sizeof(u64)) ;
3839 i++, s++, o++)
3840 *s -= *o;
3841}
3842
3843/**
3844 * t4_get_port_stats - collect port statistics
3845 * @adap: the adapter
3846 * @idx: the port index
3847 * @p: the stats structure to fill
3848 *
3849 * Collect statistics related to the given port from HW.
3850 */
3851void t4_get_port_stats(struct adapter *adap, int idx, struct port_stats *p)
3852{
3853 u32 bgmap = get_mps_bg_map(adap, idx);
3854
3855#define GET_STAT(name) \
3856 t4_read_reg64(adap, \
3857 (is_t4(adap) ? PORT_REG(idx, A_MPS_PORT_STAT_##name##_L) : \
3858 T5_PORT_REG(idx, A_MPS_PORT_STAT_##name##_L)))
3859#define GET_STAT_COM(name) t4_read_reg64(adap, A_MPS_STAT_##name##_L)
3860
3861 p->tx_pause = GET_STAT(TX_PORT_PAUSE);
3862 p->tx_octets = GET_STAT(TX_PORT_BYTES);
3863 p->tx_frames = GET_STAT(TX_PORT_FRAMES);
3864 p->tx_bcast_frames = GET_STAT(TX_PORT_BCAST);
3865 p->tx_mcast_frames = GET_STAT(TX_PORT_MCAST);
3866 p->tx_ucast_frames = GET_STAT(TX_PORT_UCAST);
3867 p->tx_error_frames = GET_STAT(TX_PORT_ERROR);
3868 p->tx_frames_64 = GET_STAT(TX_PORT_64B);
3869 p->tx_frames_65_127 = GET_STAT(TX_PORT_65B_127B);
3870 p->tx_frames_128_255 = GET_STAT(TX_PORT_128B_255B);
3871 p->tx_frames_256_511 = GET_STAT(TX_PORT_256B_511B);
3872 p->tx_frames_512_1023 = GET_STAT(TX_PORT_512B_1023B);
3873 p->tx_frames_1024_1518 = GET_STAT(TX_PORT_1024B_1518B);
3874 p->tx_frames_1519_max = GET_STAT(TX_PORT_1519B_MAX);
3875 p->tx_drop = GET_STAT(TX_PORT_DROP);
3876 p->tx_ppp0 = GET_STAT(TX_PORT_PPP0);
3877 p->tx_ppp1 = GET_STAT(TX_PORT_PPP1);
3878 p->tx_ppp2 = GET_STAT(TX_PORT_PPP2);
3879 p->tx_ppp3 = GET_STAT(TX_PORT_PPP3);
3880 p->tx_ppp4 = GET_STAT(TX_PORT_PPP4);
3881 p->tx_ppp5 = GET_STAT(TX_PORT_PPP5);
3882 p->tx_ppp6 = GET_STAT(TX_PORT_PPP6);
3883 p->tx_ppp7 = GET_STAT(TX_PORT_PPP7);
3884
3885 p->rx_pause = GET_STAT(RX_PORT_PAUSE);
3886 p->rx_octets = GET_STAT(RX_PORT_BYTES);
3887 p->rx_frames = GET_STAT(RX_PORT_FRAMES);
3888 p->rx_bcast_frames = GET_STAT(RX_PORT_BCAST);
3889 p->rx_mcast_frames = GET_STAT(RX_PORT_MCAST);
3890 p->rx_ucast_frames = GET_STAT(RX_PORT_UCAST);
3891 p->rx_too_long = GET_STAT(RX_PORT_MTU_ERROR);
3892 p->rx_jabber = GET_STAT(RX_PORT_MTU_CRC_ERROR);
3893 p->rx_fcs_err = GET_STAT(RX_PORT_CRC_ERROR);
3894 p->rx_len_err = GET_STAT(RX_PORT_LEN_ERROR);
3895 p->rx_symbol_err = GET_STAT(RX_PORT_SYM_ERROR);
3896 p->rx_runt = GET_STAT(RX_PORT_LESS_64B);
3897 p->rx_frames_64 = GET_STAT(RX_PORT_64B);
3898 p->rx_frames_65_127 = GET_STAT(RX_PORT_65B_127B);
3899 p->rx_frames_128_255 = GET_STAT(RX_PORT_128B_255B);
3900 p->rx_frames_256_511 = GET_STAT(RX_PORT_256B_511B);
3901 p->rx_frames_512_1023 = GET_STAT(RX_PORT_512B_1023B);
3902 p->rx_frames_1024_1518 = GET_STAT(RX_PORT_1024B_1518B);
3903 p->rx_frames_1519_max = GET_STAT(RX_PORT_1519B_MAX);
3904 p->rx_ppp0 = GET_STAT(RX_PORT_PPP0);
3905 p->rx_ppp1 = GET_STAT(RX_PORT_PPP1);
3906 p->rx_ppp2 = GET_STAT(RX_PORT_PPP2);
3907 p->rx_ppp3 = GET_STAT(RX_PORT_PPP3);
3908 p->rx_ppp4 = GET_STAT(RX_PORT_PPP4);
3909 p->rx_ppp5 = GET_STAT(RX_PORT_PPP5);
3910 p->rx_ppp6 = GET_STAT(RX_PORT_PPP6);
3911 p->rx_ppp7 = GET_STAT(RX_PORT_PPP7);
3912
3913 p->rx_ovflow0 = (bgmap & 1) ? GET_STAT_COM(RX_BG_0_MAC_DROP_FRAME) : 0;
3914 p->rx_ovflow1 = (bgmap & 2) ? GET_STAT_COM(RX_BG_1_MAC_DROP_FRAME) : 0;
3915 p->rx_ovflow2 = (bgmap & 4) ? GET_STAT_COM(RX_BG_2_MAC_DROP_FRAME) : 0;
3916 p->rx_ovflow3 = (bgmap & 8) ? GET_STAT_COM(RX_BG_3_MAC_DROP_FRAME) : 0;
3917 p->rx_trunc0 = (bgmap & 1) ? GET_STAT_COM(RX_BG_0_MAC_TRUNC_FRAME) : 0;
3918 p->rx_trunc1 = (bgmap & 2) ? GET_STAT_COM(RX_BG_1_MAC_TRUNC_FRAME) : 0;
3919 p->rx_trunc2 = (bgmap & 4) ? GET_STAT_COM(RX_BG_2_MAC_TRUNC_FRAME) : 0;
3920 p->rx_trunc3 = (bgmap & 8) ? GET_STAT_COM(RX_BG_3_MAC_TRUNC_FRAME) : 0;
3921
3922#undef GET_STAT
3923#undef GET_STAT_COM
3924}
3925
3926/**
3927 * t4_clr_port_stats - clear port statistics
3928 * @adap: the adapter
3929 * @idx: the port index
3930 *
3931 * Clear HW statistics for the given port.
3932 */
3933void t4_clr_port_stats(struct adapter *adap, int idx)
3934{
3935 unsigned int i;
3936 u32 bgmap = get_mps_bg_map(adap, idx);
3937 u32 port_base_addr;
3938
3939 if (is_t4(adap))
3940 port_base_addr = PORT_BASE(idx);
3941 else
3942 port_base_addr = T5_PORT_BASE(idx);
3943
3944 for (i = A_MPS_PORT_STAT_TX_PORT_BYTES_L;
3945 i <= A_MPS_PORT_STAT_TX_PORT_PPP7_H; i += 8)
3946 t4_write_reg(adap, port_base_addr + i, 0);
3947 for (i = A_MPS_PORT_STAT_RX_PORT_BYTES_L;
3948 i <= A_MPS_PORT_STAT_RX_PORT_LESS_64B_H; i += 8)
3949 t4_write_reg(adap, port_base_addr + i, 0);
3950 for (i = 0; i < 4; i++)
3951 if (bgmap & (1 << i)) {
3952 t4_write_reg(adap,
3953 A_MPS_STAT_RX_BG_0_MAC_DROP_FRAME_L + i * 8, 0);
3954 t4_write_reg(adap,
3955 A_MPS_STAT_RX_BG_0_MAC_TRUNC_FRAME_L + i * 8, 0);
3956 }
3957}
3958
3959/**
3960 * t4_get_lb_stats - collect loopback port statistics
3961 * @adap: the adapter
3962 * @idx: the loopback port index
3963 * @p: the stats structure to fill
3964 *
3965 * Return HW statistics for the given loopback port.
3966 */
3967void t4_get_lb_stats(struct adapter *adap, int idx, struct lb_port_stats *p)
3968{
3969 u32 bgmap = get_mps_bg_map(adap, idx);
3970
3971#define GET_STAT(name) \
3972 t4_read_reg64(adap, \
3973 (is_t4(adap) ? \
3974 PORT_REG(idx, A_MPS_PORT_STAT_LB_PORT_##name##_L) : \
3975 T5_PORT_REG(idx, A_MPS_PORT_STAT_LB_PORT_##name##_L)))
3976#define GET_STAT_COM(name) t4_read_reg64(adap, A_MPS_STAT_##name##_L)
3977
3978 p->octets = GET_STAT(BYTES);
3979 p->frames = GET_STAT(FRAMES);
3980 p->bcast_frames = GET_STAT(BCAST);
3981 p->mcast_frames = GET_STAT(MCAST);
3982 p->ucast_frames = GET_STAT(UCAST);
3983 p->error_frames = GET_STAT(ERROR);
3984
3985 p->frames_64 = GET_STAT(64B);
3986 p->frames_65_127 = GET_STAT(65B_127B);
3987 p->frames_128_255 = GET_STAT(128B_255B);
3988 p->frames_256_511 = GET_STAT(256B_511B);
3989 p->frames_512_1023 = GET_STAT(512B_1023B);
3990 p->frames_1024_1518 = GET_STAT(1024B_1518B);
3991 p->frames_1519_max = GET_STAT(1519B_MAX);
3992 p->drop = GET_STAT(DROP_FRAMES);
3993
3994 p->ovflow0 = (bgmap & 1) ? GET_STAT_COM(RX_BG_0_LB_DROP_FRAME) : 0;
3995 p->ovflow1 = (bgmap & 2) ? GET_STAT_COM(RX_BG_1_LB_DROP_FRAME) : 0;
3996 p->ovflow2 = (bgmap & 4) ? GET_STAT_COM(RX_BG_2_LB_DROP_FRAME) : 0;
3997 p->ovflow3 = (bgmap & 8) ? GET_STAT_COM(RX_BG_3_LB_DROP_FRAME) : 0;
3998 p->trunc0 = (bgmap & 1) ? GET_STAT_COM(RX_BG_0_LB_TRUNC_FRAME) : 0;
3999 p->trunc1 = (bgmap & 2) ? GET_STAT_COM(RX_BG_1_LB_TRUNC_FRAME) : 0;
4000 p->trunc2 = (bgmap & 4) ? GET_STAT_COM(RX_BG_2_LB_TRUNC_FRAME) : 0;
4001 p->trunc3 = (bgmap & 8) ? GET_STAT_COM(RX_BG_3_LB_TRUNC_FRAME) : 0;
4002
4003#undef GET_STAT
4004#undef GET_STAT_COM
4005}
4006
4007/**
4008 * t4_wol_magic_enable - enable/disable magic packet WoL
4009 * @adap: the adapter
4010 * @port: the physical port index
4011 * @addr: MAC address expected in magic packets, %NULL to disable
4012 *
4013 * Enables/disables magic packet wake-on-LAN for the selected port.
4014 */
4015void t4_wol_magic_enable(struct adapter *adap, unsigned int port,
4016 const u8 *addr)
4017{
4018 u32 mag_id_reg_l, mag_id_reg_h, port_cfg_reg;
4019
4020 if (is_t4(adap)) {
4021 mag_id_reg_l = PORT_REG(port, A_XGMAC_PORT_MAGIC_MACID_LO);
4022 mag_id_reg_h = PORT_REG(port, A_XGMAC_PORT_MAGIC_MACID_HI);
4023 port_cfg_reg = PORT_REG(port, A_XGMAC_PORT_CFG2);
4024 } else {
4025 mag_id_reg_l = T5_PORT_REG(port, A_MAC_PORT_MAGIC_MACID_LO);
4026 mag_id_reg_h = T5_PORT_REG(port, A_MAC_PORT_MAGIC_MACID_HI);
4027 port_cfg_reg = T5_PORT_REG(port, A_MAC_PORT_CFG2);
4028 }
4029
4030 if (addr) {
4031 t4_write_reg(adap, mag_id_reg_l,
4032 (addr[2] << 24) | (addr[3] << 16) |
4033 (addr[4] << 8) | addr[5]);
4034 t4_write_reg(adap, mag_id_reg_h,
4035 (addr[0] << 8) | addr[1]);
4036 }
4037 t4_set_reg_field(adap, port_cfg_reg, F_MAGICEN,
4038 V_MAGICEN(addr != NULL));
4039}
4040
4041/**
4042 * t4_wol_pat_enable - enable/disable pattern-based WoL
4043 * @adap: the adapter
4044 * @port: the physical port index
4045 * @map: bitmap of which HW pattern filters to set
4046 * @mask0: byte mask for bytes 0-63 of a packet
4047 * @mask1: byte mask for bytes 64-127 of a packet
4048 * @crc: Ethernet CRC for selected bytes
4049 * @enable: enable/disable switch
4050 *
4051 * Sets the pattern filters indicated in @map to mask out the bytes
4052 * specified in @mask0/@mask1 in received packets and compare the CRC of
4053 * the resulting packet against @crc. If @enable is %true pattern-based
4054 * WoL is enabled, otherwise disabled.
4055 */
4056int t4_wol_pat_enable(struct adapter *adap, unsigned int port, unsigned int map,
4057 u64 mask0, u64 mask1, unsigned int crc, bool enable)
4058{
4059 int i;
4060 u32 port_cfg_reg;
4061
4062 if (is_t4(adap))
4063 port_cfg_reg = PORT_REG(port, A_XGMAC_PORT_CFG2);
4064 else
4065 port_cfg_reg = T5_PORT_REG(port, A_MAC_PORT_CFG2);
4066
4067 if (!enable) {
4068 t4_set_reg_field(adap, port_cfg_reg, F_PATEN, 0);
4069 return 0;
4070 }
4071 if (map > 0xff)
4072 return -EINVAL;
4073
4074#define EPIO_REG(name) \
4075 (is_t4(adap) ? PORT_REG(port, A_XGMAC_PORT_EPIO_##name) : \
4076 T5_PORT_REG(port, A_MAC_PORT_EPIO_##name))
4077
4078 t4_write_reg(adap, EPIO_REG(DATA1), mask0 >> 32);
4079 t4_write_reg(adap, EPIO_REG(DATA2), mask1);
4080 t4_write_reg(adap, EPIO_REG(DATA3), mask1 >> 32);
4081
4082 for (i = 0; i < NWOL_PAT; i++, map >>= 1) {
4083 if (!(map & 1))
4084 continue;
4085
4086 /* write byte masks */
4087 t4_write_reg(adap, EPIO_REG(DATA0), mask0);
4088 t4_write_reg(adap, EPIO_REG(OP), V_ADDRESS(i) | F_EPIOWR);
4089 t4_read_reg(adap, EPIO_REG(OP)); /* flush */
4090 if (t4_read_reg(adap, EPIO_REG(OP)) & F_BUSY)
4091 return -ETIMEDOUT;
4092
4093 /* write CRC */
4094 t4_write_reg(adap, EPIO_REG(DATA0), crc);
4095 t4_write_reg(adap, EPIO_REG(OP), V_ADDRESS(i + 32) | F_EPIOWR);
4096 t4_read_reg(adap, EPIO_REG(OP)); /* flush */
4097 if (t4_read_reg(adap, EPIO_REG(OP)) & F_BUSY)
4098 return -ETIMEDOUT;
4099 }
4100#undef EPIO_REG
4101
4102 t4_set_reg_field(adap, port_cfg_reg, 0, F_PATEN);
4103 return 0;
4104}
4105
4106/**
4107 * t4_mk_filtdelwr - create a delete filter WR
4108 * @ftid: the filter ID
4109 * @wr: the filter work request to populate
4110 * @qid: ingress queue to receive the delete notification
4111 *
4112 * Creates a filter work request to delete the supplied filter. If @qid is
4113 * negative the delete notification is suppressed.
4114 */
4115void t4_mk_filtdelwr(unsigned int ftid, struct fw_filter_wr *wr, int qid)
4116{
4117 memset(wr, 0, sizeof(*wr));
4118 wr->op_pkd = htonl(V_FW_WR_OP(FW_FILTER_WR));
4119 wr->len16_pkd = htonl(V_FW_WR_LEN16(sizeof(*wr) / 16));
4120 wr->tid_to_iq = htonl(V_FW_FILTER_WR_TID(ftid) |
4121 V_FW_FILTER_WR_NOREPLY(qid < 0));
4122 wr->del_filter_to_l2tix = htonl(F_FW_FILTER_WR_DEL_FILTER);
4123 if (qid >= 0)
4124 wr->rx_chan_rx_rpl_iq = htons(V_FW_FILTER_WR_RX_RPL_IQ(qid));
4125}
4126
4127#define INIT_CMD(var, cmd, rd_wr) do { \
4128 (var).op_to_write = htonl(V_FW_CMD_OP(FW_##cmd##_CMD) | \
4129 F_FW_CMD_REQUEST | F_FW_CMD_##rd_wr); \
4130 (var).retval_len16 = htonl(FW_LEN16(var)); \
4131} while (0)
4132
4133int t4_fwaddrspace_write(struct adapter *adap, unsigned int mbox, u32 addr, u32 val)
4134{
4135 struct fw_ldst_cmd c;
4136
4137 memset(&c, 0, sizeof(c));
4138 c.op_to_addrspace = htonl(V_FW_CMD_OP(FW_LDST_CMD) | F_FW_CMD_REQUEST |
4139 F_FW_CMD_WRITE | V_FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_FIRMWARE));
4140 c.cycles_to_len16 = htonl(FW_LEN16(c));
4141 c.u.addrval.addr = htonl(addr);
4142 c.u.addrval.val = htonl(val);
4143
4144 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
4145}
4146
4147/**
4148 * t4_i2c_rd - read a byte from an i2c addressable device
4149 * @adap: the adapter
4150 * @mbox: mailbox to use for the FW command
4151 * @port_id: the port id
4152 * @dev_addr: the i2c device address
4153 * @offset: the byte offset to read from
4154 * @valp: where to store the value
4155 */
4156int t4_i2c_rd(struct adapter *adap, unsigned int mbox, unsigned int port_id,
4157 u8 dev_addr, u8 offset, u8 *valp)
4158{
4159 int ret;
4160 struct fw_ldst_cmd c;
4161
4162 memset(&c, 0, sizeof(c));
4163 c.op_to_addrspace = htonl(V_FW_CMD_OP(FW_LDST_CMD) | F_FW_CMD_REQUEST |
4164 F_FW_CMD_READ |
4165 V_FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_FUNC_I2C));
4166 c.cycles_to_len16 = htonl(FW_LEN16(c));
4167 c.u.i2c_deprecated.pid_pkd = V_FW_LDST_CMD_PID(port_id);
4168 c.u.i2c_deprecated.base = dev_addr;
4169 c.u.i2c_deprecated.boffset = offset;
4170
4171 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
4172 if (ret == 0)
4173 *valp = c.u.i2c_deprecated.data;
4174 return ret;
4175}
4176
4177/**
4178 * t4_mdio_rd - read a PHY register through MDIO
4179 * @adap: the adapter
4180 * @mbox: mailbox to use for the FW command
4181 * @phy_addr: the PHY address
4182 * @mmd: the PHY MMD to access (0 for clause 22 PHYs)
4183 * @reg: the register to read
4184 * @valp: where to store the value
4185 *
4186 * Issues a FW command through the given mailbox to read a PHY register.
4187 */
4188int t4_mdio_rd(struct adapter *adap, unsigned int mbox, unsigned int phy_addr,
4189 unsigned int mmd, unsigned int reg, unsigned int *valp)
4190{
4191 int ret;
4192 struct fw_ldst_cmd c;
4193
4194 memset(&c, 0, sizeof(c));
4195 c.op_to_addrspace = htonl(V_FW_CMD_OP(FW_LDST_CMD) | F_FW_CMD_REQUEST |
4196 F_FW_CMD_READ | V_FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_MDIO));
4197 c.cycles_to_len16 = htonl(FW_LEN16(c));
4198 c.u.mdio.paddr_mmd = htons(V_FW_LDST_CMD_PADDR(phy_addr) |
4199 V_FW_LDST_CMD_MMD(mmd));
4200 c.u.mdio.raddr = htons(reg);
4201
4202 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
4203 if (ret == 0)
4204 *valp = ntohs(c.u.mdio.rval);
4205 return ret;
4206}
4207
4208/**
4209 * t4_mdio_wr - write a PHY register through MDIO
4210 * @adap: the adapter
4211 * @mbox: mailbox to use for the FW command
4212 * @phy_addr: the PHY address
4213 * @mmd: the PHY MMD to access (0 for clause 22 PHYs)
4214 * @reg: the register to write
4215 * @valp: value to write
4216 *
4217 * Issues a FW command through the given mailbox to write a PHY register.
4218 */
4219int t4_mdio_wr(struct adapter *adap, unsigned int mbox, unsigned int phy_addr,
4220 unsigned int mmd, unsigned int reg, unsigned int val)
4221{
4222 struct fw_ldst_cmd c;
4223
4224 memset(&c, 0, sizeof(c));
4225 c.op_to_addrspace = htonl(V_FW_CMD_OP(FW_LDST_CMD) | F_FW_CMD_REQUEST |
4226 F_FW_CMD_WRITE | V_FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_MDIO));
4227 c.cycles_to_len16 = htonl(FW_LEN16(c));
4228 c.u.mdio.paddr_mmd = htons(V_FW_LDST_CMD_PADDR(phy_addr) |
4229 V_FW_LDST_CMD_MMD(mmd));
4230 c.u.mdio.raddr = htons(reg);
4231 c.u.mdio.rval = htons(val);
4232
4233 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
4234}
4235
4236/**
4237 * t4_sge_ctxt_flush - flush the SGE context cache
4238 * @adap: the adapter
4239 * @mbox: mailbox to use for the FW command
4240 *
4241 * Issues a FW command through the given mailbox to flush the
4242 * SGE context cache.
4243 */
4244int t4_sge_ctxt_flush(struct adapter *adap, unsigned int mbox)
4245{
4246 int ret;
4247 struct fw_ldst_cmd c;
4248
4249 memset(&c, 0, sizeof(c));
4250 c.op_to_addrspace = htonl(V_FW_CMD_OP(FW_LDST_CMD) | F_FW_CMD_REQUEST |
4251 F_FW_CMD_READ |
4252 V_FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_SGE_EGRC));
4253 c.cycles_to_len16 = htonl(FW_LEN16(c));
4254 c.u.idctxt.msg_ctxtflush = htonl(F_FW_LDST_CMD_CTXTFLUSH);
4255
4256 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
4257 return ret;
4258}
4259
4260/**
4261 * t4_sge_ctxt_rd - read an SGE context through FW
4262 * @adap: the adapter
4263 * @mbox: mailbox to use for the FW command
4264 * @cid: the context id
4265 * @ctype: the context type
4266 * @data: where to store the context data
4267 *
4268 * Issues a FW command through the given mailbox to read an SGE context.
4269 */
4270int t4_sge_ctxt_rd(struct adapter *adap, unsigned int mbox, unsigned int cid,
4271 enum ctxt_type ctype, u32 *data)
4272{
4273 int ret;
4274 struct fw_ldst_cmd c;
4275
4276 if (ctype == CTXT_EGRESS)
4277 ret = FW_LDST_ADDRSPC_SGE_EGRC;
4278 else if (ctype == CTXT_INGRESS)
4279 ret = FW_LDST_ADDRSPC_SGE_INGC;
4280 else if (ctype == CTXT_FLM)
4281 ret = FW_LDST_ADDRSPC_SGE_FLMC;
4282 else
4283 ret = FW_LDST_ADDRSPC_SGE_CONMC;
4284
4285 memset(&c, 0, sizeof(c));
4286 c.op_to_addrspace = htonl(V_FW_CMD_OP(FW_LDST_CMD) | F_FW_CMD_REQUEST |
4287 F_FW_CMD_READ | V_FW_LDST_CMD_ADDRSPACE(ret));
4288 c.cycles_to_len16 = htonl(FW_LEN16(c));
4289 c.u.idctxt.physid = htonl(cid);
4290
4291 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
4292 if (ret == 0) {
4293 data[0] = ntohl(c.u.idctxt.ctxt_data0);
4294 data[1] = ntohl(c.u.idctxt.ctxt_data1);
4295 data[2] = ntohl(c.u.idctxt.ctxt_data2);
4296 data[3] = ntohl(c.u.idctxt.ctxt_data3);
4297 data[4] = ntohl(c.u.idctxt.ctxt_data4);
4298 data[5] = ntohl(c.u.idctxt.ctxt_data5);
4299 }
4300 return ret;
4301}
4302
4303/**
4304 * t4_sge_ctxt_rd_bd - read an SGE context bypassing FW
4305 * @adap: the adapter
4306 * @cid: the context id
4307 * @ctype: the context type
4308 * @data: where to store the context data
4309 *
4310 * Reads an SGE context directly, bypassing FW. This is only for
4311 * debugging when FW is unavailable.
4312 */
4313int t4_sge_ctxt_rd_bd(struct adapter *adap, unsigned int cid, enum ctxt_type ctype,
4314 u32 *data)
4315{
4316 int i, ret;
4317
4318 t4_write_reg(adap, A_SGE_CTXT_CMD, V_CTXTQID(cid) | V_CTXTTYPE(ctype));
4319 ret = t4_wait_op_done(adap, A_SGE_CTXT_CMD, F_BUSY, 0, 3, 1);
4320 if (!ret)
4321 for (i = A_SGE_CTXT_DATA0; i <= A_SGE_CTXT_DATA5; i += 4)
4322 *data++ = t4_read_reg(adap, i);
4323 return ret;
4324}
4325
4326/**
4327 * t4_fw_hello - establish communication with FW
4328 * @adap: the adapter
4329 * @mbox: mailbox to use for the FW command
4330 * @evt_mbox: mailbox to receive async FW events
4331 * @master: specifies the caller's willingness to be the device master
4332 * @state: returns the current device state (if non-NULL)
4333 *
4334 * Issues a command to establish communication with FW. Returns either
4335 * an error (negative integer) or the mailbox of the Master PF.
4336 */
4337int t4_fw_hello(struct adapter *adap, unsigned int mbox, unsigned int evt_mbox,
4338 enum dev_master master, enum dev_state *state)
4339{
4340 int ret;
4341 struct fw_hello_cmd c;
4342 u32 v;
4343 unsigned int master_mbox;
4344 int retries = FW_CMD_HELLO_RETRIES;
4345
4346retry:
4347 memset(&c, 0, sizeof(c));
4348 INIT_CMD(c, HELLO, WRITE);
4349 c.err_to_clearinit = htonl(
4350 V_FW_HELLO_CMD_MASTERDIS(master == MASTER_CANT) |
4351 V_FW_HELLO_CMD_MASTERFORCE(master == MASTER_MUST) |
4352 V_FW_HELLO_CMD_MBMASTER(master == MASTER_MUST ? mbox :
4353 M_FW_HELLO_CMD_MBMASTER) |
4354 V_FW_HELLO_CMD_MBASYNCNOT(evt_mbox) |
4355 V_FW_HELLO_CMD_STAGE(FW_HELLO_CMD_STAGE_OS) |
4356 F_FW_HELLO_CMD_CLEARINIT);
4357
4358 /*
4359 * Issue the HELLO command to the firmware. If it's not successful
4360 * but indicates that we got a "busy" or "timeout" condition, retry
4361 * the HELLO until we exhaust our retry limit. If we do exceed our
4362 * retry limit, check to see if the firmware left us any error
4363 * information and report that if so ...
4364 */
4365 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
4366 if (ret != FW_SUCCESS) {
4367 if ((ret == -EBUSY || ret == -ETIMEDOUT) && retries-- > 0)
4368 goto retry;
4369 if (t4_read_reg(adap, A_PCIE_FW) & F_PCIE_FW_ERR)
4370 t4_report_fw_error(adap);
4371 return ret;
4372 }
4373
4374 v = ntohl(c.err_to_clearinit);
4375 master_mbox = G_FW_HELLO_CMD_MBMASTER(v);
4376 if (state) {
4377 if (v & F_FW_HELLO_CMD_ERR)
4378 *state = DEV_STATE_ERR;
4379 else if (v & F_FW_HELLO_CMD_INIT)
4380 *state = DEV_STATE_INIT;
4381 else
4382 *state = DEV_STATE_UNINIT;
4383 }
4384
4385 /*
4386 * If we're not the Master PF then we need to wait around for the
4387 * Master PF Driver to finish setting up the adapter.
4388 *
4389 * Note that we also do this wait if we're a non-Master-capable PF and
4390 * there is no current Master PF; a Master PF may show up momentarily
4391 * and we wouldn't want to fail pointlessly. (This can happen when an
4392 * OS loads lots of different drivers rapidly at the same time). In
4393 * this case, the Master PF returned by the firmware will be
4394 * M_PCIE_FW_MASTER so the test below will work ...
4395 */
4396 if ((v & (F_FW_HELLO_CMD_ERR|F_FW_HELLO_CMD_INIT)) == 0 &&
4397 master_mbox != mbox) {
4398 int waiting = FW_CMD_HELLO_TIMEOUT;
4399
4400 /*
4401 * Wait for the firmware to either indicate an error or
4402 * initialized state. If we see either of these we bail out
4403 * and report the issue to the caller. If we exhaust the
4404 * "hello timeout" and we haven't exhausted our retries, try
4405 * again. Otherwise bail with a timeout error.
4406 */
4407 for (;;) {
4408 u32 pcie_fw;
4409
4410 msleep(50);
4411 waiting -= 50;
4412
4413 /*
4414 * If neither Error nor Initialialized are indicated
4415 * by the firmware keep waiting till we exhaust our
4416 * timeout ... and then retry if we haven't exhausted
4417 * our retries ...
4418 */
4419 pcie_fw = t4_read_reg(adap, A_PCIE_FW);
4420 if (!(pcie_fw & (F_PCIE_FW_ERR|F_PCIE_FW_INIT))) {
4421 if (waiting <= 0) {
4422 if (retries-- > 0)
4423 goto retry;
4424
4425 return -ETIMEDOUT;
4426 }
4427 continue;
4428 }
4429
4430 /*
4431 * We either have an Error or Initialized condition
4432 * report errors preferentially.
4433 */
4434 if (state) {
4435 if (pcie_fw & F_PCIE_FW_ERR)
4436 *state = DEV_STATE_ERR;
4437 else if (pcie_fw & F_PCIE_FW_INIT)
4438 *state = DEV_STATE_INIT;
4439 }
4440
4441 /*
4442 * If we arrived before a Master PF was selected and
4443 * there's not a valid Master PF, grab its identity
4444 * for our caller.
4445 */
4446 if (master_mbox == M_PCIE_FW_MASTER &&
4447 (pcie_fw & F_PCIE_FW_MASTER_VLD))
4448 master_mbox = G_PCIE_FW_MASTER(pcie_fw);
4449 break;
4450 }
4451 }
4452
4453 return master_mbox;
4454}
4455
4456/**
4457 * t4_fw_bye - end communication with FW
4458 * @adap: the adapter
4459 * @mbox: mailbox to use for the FW command
4460 *
4461 * Issues a command to terminate communication with FW.
4462 */
4463int t4_fw_bye(struct adapter *adap, unsigned int mbox)
4464{
4465 struct fw_bye_cmd c;
4466
4467 memset(&c, 0, sizeof(c));
4468 INIT_CMD(c, BYE, WRITE);
4469 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
4470}
4471
4472/**
4473 * t4_fw_reset - issue a reset to FW
4474 * @adap: the adapter
4475 * @mbox: mailbox to use for the FW command
4476 * @reset: specifies the type of reset to perform
4477 *
4478 * Issues a reset command of the specified type to FW.
4479 */
4480int t4_fw_reset(struct adapter *adap, unsigned int mbox, int reset)
4481{
4482 struct fw_reset_cmd c;
4483
4484 memset(&c, 0, sizeof(c));
4485 INIT_CMD(c, RESET, WRITE);
4486 c.val = htonl(reset);
4487 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
4488}
4489
4490/**
4491 * t4_fw_halt - issue a reset/halt to FW and put uP into RESET
4492 * @adap: the adapter
4493 * @mbox: mailbox to use for the FW RESET command (if desired)
4494 * @force: force uP into RESET even if FW RESET command fails
4495 *
4496 * Issues a RESET command to firmware (if desired) with a HALT indication
4497 * and then puts the microprocessor into RESET state. The RESET command
4498 * will only be issued if a legitimate mailbox is provided (mbox <=
4499 * M_PCIE_FW_MASTER).
4500 *
4501 * This is generally used in order for the host to safely manipulate the
4502 * adapter without fear of conflicting with whatever the firmware might
4503 * be doing. The only way out of this state is to RESTART the firmware
4504 * ...
4505 */
4506int t4_fw_halt(struct adapter *adap, unsigned int mbox, int force)
4507{
4508 int ret = 0;
4509
4510 /*
4511 * If a legitimate mailbox is provided, issue a RESET command
4512 * with a HALT indication.
4513 */
4514 if (mbox <= M_PCIE_FW_MASTER) {
4515 struct fw_reset_cmd c;
4516
4517 memset(&c, 0, sizeof(c));
4518 INIT_CMD(c, RESET, WRITE);
4519 c.val = htonl(F_PIORST | F_PIORSTMODE);
4520 c.halt_pkd = htonl(F_FW_RESET_CMD_HALT);
4521 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
4522 }
4523
4524 /*
4525 * Normally we won't complete the operation if the firmware RESET
4526 * command fails but if our caller insists we'll go ahead and put the
4527 * uP into RESET. This can be useful if the firmware is hung or even
4528 * missing ... We'll have to take the risk of putting the uP into
4529 * RESET without the cooperation of firmware in that case.
4530 *
4531 * We also force the firmware's HALT flag to be on in case we bypassed
4532 * the firmware RESET command above or we're dealing with old firmware
4533 * which doesn't have the HALT capability. This will serve as a flag
4534 * for the incoming firmware to know that it's coming out of a HALT
4535 * rather than a RESET ... if it's new enough to understand that ...
4536 */
4537 if (ret == 0 || force) {
4538 t4_set_reg_field(adap, A_CIM_BOOT_CFG, F_UPCRST, F_UPCRST);
4539 t4_set_reg_field(adap, A_PCIE_FW, F_PCIE_FW_HALT, F_PCIE_FW_HALT);
4540 }
4541
4542 /*
4543 * And we always return the result of the firmware RESET command
4544 * even when we force the uP into RESET ...
4545 */
4546 return ret;
4547}
4548
4549/**
4550 * t4_fw_restart - restart the firmware by taking the uP out of RESET
4551 * @adap: the adapter
4552 * @reset: if we want to do a RESET to restart things
4553 *
4554 * Restart firmware previously halted by t4_fw_halt(). On successful
4555 * return the previous PF Master remains as the new PF Master and there
4556 * is no need to issue a new HELLO command, etc.
4557 *
4558 * We do this in two ways:
4559 *
4560 * 1. If we're dealing with newer firmware we'll simply want to take
4561 * the chip's microprocessor out of RESET. This will cause the
4562 * firmware to start up from its start vector. And then we'll loop
4563 * until the firmware indicates it's started again (PCIE_FW.HALT
4564 * reset to 0) or we timeout.
4565 *
4566 * 2. If we're dealing with older firmware then we'll need to RESET
4567 * the chip since older firmware won't recognize the PCIE_FW.HALT
4568 * flag and automatically RESET itself on startup.
4569 */
4570int t4_fw_restart(struct adapter *adap, unsigned int mbox, int reset)
4571{
4572 if (reset) {
4573 /*
4574 * Since we're directing the RESET instead of the firmware
4575 * doing it automatically, we need to clear the PCIE_FW.HALT
4576 * bit.
4577 */
4578 t4_set_reg_field(adap, A_PCIE_FW, F_PCIE_FW_HALT, 0);
4579
4580 /*
4581 * If we've been given a valid mailbox, first try to get the
4582 * firmware to do the RESET. If that works, great and we can
4583 * return success. Otherwise, if we haven't been given a
4584 * valid mailbox or the RESET command failed, fall back to
4585 * hitting the chip with a hammer.
4586 */
4587 if (mbox <= M_PCIE_FW_MASTER) {
4588 t4_set_reg_field(adap, A_CIM_BOOT_CFG, F_UPCRST, 0);
4589 msleep(100);
4590 if (t4_fw_reset(adap, mbox,
4591 F_PIORST | F_PIORSTMODE) == 0)
4592 return 0;
4593 }
4594
4595 t4_write_reg(adap, A_PL_RST, F_PIORST | F_PIORSTMODE);
4596 msleep(2000);
4597 } else {
4598 int ms;
4599
4600 t4_set_reg_field(adap, A_CIM_BOOT_CFG, F_UPCRST, 0);
4601 for (ms = 0; ms < FW_CMD_MAX_TIMEOUT; ) {
4602 if (!(t4_read_reg(adap, A_PCIE_FW) & F_PCIE_FW_HALT))
4603 return FW_SUCCESS;
4604 msleep(100);
4605 ms += 100;
4606 }
4607 return -ETIMEDOUT;
4608 }
4609 return 0;
4610}
4611
4612/**
4613 * t4_fw_upgrade - perform all of the steps necessary to upgrade FW
4614 * @adap: the adapter
4615 * @mbox: mailbox to use for the FW RESET command (if desired)
4616 * @fw_data: the firmware image to write
4617 * @size: image size
4618 * @force: force upgrade even if firmware doesn't cooperate
4619 *
4620 * Perform all of the steps necessary for upgrading an adapter's
4621 * firmware image. Normally this requires the cooperation of the
4622 * existing firmware in order to halt all existing activities
4623 * but if an invalid mailbox token is passed in we skip that step
4624 * (though we'll still put the adapter microprocessor into RESET in
4625 * that case).
4626 *
4627 * On successful return the new firmware will have been loaded and
4628 * the adapter will have been fully RESET losing all previous setup
4629 * state. On unsuccessful return the adapter may be completely hosed ...
4630 * positive errno indicates that the adapter is ~probably~ intact, a
4631 * negative errno indicates that things are looking bad ...
4632 */
4633int t4_fw_upgrade(struct adapter *adap, unsigned int mbox,
4634 const u8 *fw_data, unsigned int size, int force)
4635{
4636 const struct fw_hdr *fw_hdr = (const struct fw_hdr *)fw_data;
4637 unsigned int bootstrap = ntohl(fw_hdr->magic) == FW_HDR_MAGIC_BOOTSTRAP;
4638 int reset, ret;
4639
4640 if (!bootstrap) {
4641 ret = t4_fw_halt(adap, mbox, force);
4642 if (ret < 0 && !force)
4643 return ret;
4644 }
4645
4646 ret = t4_load_fw(adap, fw_data, size);
4647 if (ret < 0 || bootstrap)
4648 return ret;
4649
4650 /*
4651 * Older versions of the firmware don't understand the new
4652 * PCIE_FW.HALT flag and so won't know to perform a RESET when they
4653 * restart. So for newly loaded older firmware we'll have to do the
4654 * RESET for it so it starts up on a clean slate. We can tell if
4655 * the newly loaded firmware will handle this right by checking
4656 * its header flags to see if it advertises the capability.
4657 */
4658 reset = ((ntohl(fw_hdr->flags) & FW_HDR_FLAGS_RESET_HALT) == 0);
4659 return t4_fw_restart(adap, mbox, reset);
4660}
4661
4662/**
4663 * t4_fw_initialize - ask FW to initialize the device
4664 * @adap: the adapter
4665 * @mbox: mailbox to use for the FW command
4666 *
4667 * Issues a command to FW to partially initialize the device. This
4668 * performs initialization that generally doesn't depend on user input.
4669 */
4670int t4_fw_initialize(struct adapter *adap, unsigned int mbox)
4671{
4672 struct fw_initialize_cmd c;
4673
4674 memset(&c, 0, sizeof(c));
4675 INIT_CMD(c, INITIALIZE, WRITE);
4676 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
4677}
4678
4679/**
4680 * t4_query_params - query FW or device parameters
4681 * @adap: the adapter
4682 * @mbox: mailbox to use for the FW command
4683 * @pf: the PF
4684 * @vf: the VF
4685 * @nparams: the number of parameters
4686 * @params: the parameter names
4687 * @val: the parameter values
4688 *
4689 * Reads the value of FW or device parameters. Up to 7 parameters can be
4690 * queried at once.
4691 */
4692int t4_query_params(struct adapter *adap, unsigned int mbox, unsigned int pf,
4693 unsigned int vf, unsigned int nparams, const u32 *params,
4694 u32 *val)
4695{
4696 int i, ret;
4697 struct fw_params_cmd c;
4698 __be32 *p = &c.param[0].mnem;
4699
4700 if (nparams > 7)
4701 return -EINVAL;
4702
4703 memset(&c, 0, sizeof(c));
4704 c.op_to_vfn = htonl(V_FW_CMD_OP(FW_PARAMS_CMD) | F_FW_CMD_REQUEST |
4705 F_FW_CMD_READ | V_FW_PARAMS_CMD_PFN(pf) |
4706 V_FW_PARAMS_CMD_VFN(vf));
4707 c.retval_len16 = htonl(FW_LEN16(c));
4708
4709 for (i = 0; i < nparams; i++, p += 2, params++)
4710 *p = htonl(*params);
4711
4712 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
4713 if (ret == 0)
4714 for (i = 0, p = &c.param[0].val; i < nparams; i++, p += 2)
4715 *val++ = ntohl(*p);
4716 return ret;
4717}
4718
4719/**
4720 * t4_set_params - sets FW or device parameters
4721 * @adap: the adapter
4722 * @mbox: mailbox to use for the FW command
4723 * @pf: the PF
4724 * @vf: the VF
4725 * @nparams: the number of parameters
4726 * @params: the parameter names
4727 * @val: the parameter values
4728 *
4729 * Sets the value of FW or device parameters. Up to 7 parameters can be
4730 * specified at once.
4731 */
4732int t4_set_params(struct adapter *adap, unsigned int mbox, unsigned int pf,
4733 unsigned int vf, unsigned int nparams, const u32 *params,
4734 const u32 *val)
4735{
4736 struct fw_params_cmd c;
4737 __be32 *p = &c.param[0].mnem;
4738
4739 if (nparams > 7)
4740 return -EINVAL;
4741
4742 memset(&c, 0, sizeof(c));
4743 c.op_to_vfn = htonl(V_FW_CMD_OP(FW_PARAMS_CMD) | F_FW_CMD_REQUEST |
4744 F_FW_CMD_WRITE | V_FW_PARAMS_CMD_PFN(pf) |
4745 V_FW_PARAMS_CMD_VFN(vf));
4746 c.retval_len16 = htonl(FW_LEN16(c));
4747
4748 while (nparams--) {
4749 *p++ = htonl(*params);
4750 params++;
4751 *p++ = htonl(*val);
4752 val++;
4753 }
4754
4755 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
4756}
4757
4758/**
4759 * t4_cfg_pfvf - configure PF/VF resource limits
4760 * @adap: the adapter
4761 * @mbox: mailbox to use for the FW command
4762 * @pf: the PF being configured
4763 * @vf: the VF being configured
4764 * @txq: the max number of egress queues
4765 * @txq_eth_ctrl: the max number of egress Ethernet or control queues
4766 * @rxqi: the max number of interrupt-capable ingress queues
4767 * @rxq: the max number of interruptless ingress queues
4768 * @tc: the PCI traffic class
4769 * @vi: the max number of virtual interfaces
4770 * @cmask: the channel access rights mask for the PF/VF
4771 * @pmask: the port access rights mask for the PF/VF
4772 * @nexact: the maximum number of exact MPS filters
4773 * @rcaps: read capabilities
4774 * @wxcaps: write/execute capabilities
4775 *
4776 * Configures resource limits and capabilities for a physical or virtual
4777 * function.
4778 */
4779int t4_cfg_pfvf(struct adapter *adap, unsigned int mbox, unsigned int pf,
4780 unsigned int vf, unsigned int txq, unsigned int txq_eth_ctrl,
4781 unsigned int rxqi, unsigned int rxq, unsigned int tc,
4782 unsigned int vi, unsigned int cmask, unsigned int pmask,
4783 unsigned int nexact, unsigned int rcaps, unsigned int wxcaps)
4784{
4785 struct fw_pfvf_cmd c;
4786
4787 memset(&c, 0, sizeof(c));
4788 c.op_to_vfn = htonl(V_FW_CMD_OP(FW_PFVF_CMD) | F_FW_CMD_REQUEST |
4789 F_FW_CMD_WRITE | V_FW_PFVF_CMD_PFN(pf) |
4790 V_FW_PFVF_CMD_VFN(vf));
4791 c.retval_len16 = htonl(FW_LEN16(c));
4792 c.niqflint_niq = htonl(V_FW_PFVF_CMD_NIQFLINT(rxqi) |
4793 V_FW_PFVF_CMD_NIQ(rxq));
4794 c.type_to_neq = htonl(V_FW_PFVF_CMD_CMASK(cmask) |
4795 V_FW_PFVF_CMD_PMASK(pmask) |
4796 V_FW_PFVF_CMD_NEQ(txq));
4797 c.tc_to_nexactf = htonl(V_FW_PFVF_CMD_TC(tc) | V_FW_PFVF_CMD_NVI(vi) |
4798 V_FW_PFVF_CMD_NEXACTF(nexact));
4799 c.r_caps_to_nethctrl = htonl(V_FW_PFVF_CMD_R_CAPS(rcaps) |
4800 V_FW_PFVF_CMD_WX_CAPS(wxcaps) |
4801 V_FW_PFVF_CMD_NETHCTRL(txq_eth_ctrl));
4802 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
4803}
4804
4805/**
4806 * t4_alloc_vi_func - allocate a virtual interface
4807 * @adap: the adapter
4808 * @mbox: mailbox to use for the FW command
4809 * @port: physical port associated with the VI
4810 * @pf: the PF owning the VI
4811 * @vf: the VF owning the VI
4812 * @nmac: number of MAC addresses needed (1 to 5)
4813 * @mac: the MAC addresses of the VI
4814 * @rss_size: size of RSS table slice associated with this VI
4815 * @portfunc: which Port Application Function MAC Address is desired
4816 * @idstype: Intrusion Detection Type
4817 *
4818 * Allocates a virtual interface for the given physical port. If @mac is
4819 * not %NULL it contains the MAC addresses of the VI as assigned by FW.
4820 * @mac should be large enough to hold @nmac Ethernet addresses, they are
4821 * stored consecutively so the space needed is @nmac * 6 bytes.
4822 * Returns a negative error number or the non-negative VI id.
4823 */
4824int t4_alloc_vi_func(struct adapter *adap, unsigned int mbox,
4825 unsigned int port, unsigned int pf, unsigned int vf,
4826 unsigned int nmac, u8 *mac, unsigned int *rss_size,
4827 unsigned int portfunc, unsigned int idstype)
4828{
4829 int ret;
4830 struct fw_vi_cmd c;
4831
4832 memset(&c, 0, sizeof(c));
4833 c.op_to_vfn = htonl(V_FW_CMD_OP(FW_VI_CMD) | F_FW_CMD_REQUEST |
4834 F_FW_CMD_WRITE | F_FW_CMD_EXEC |
4835 V_FW_VI_CMD_PFN(pf) | V_FW_VI_CMD_VFN(vf));
4836 c.alloc_to_len16 = htonl(F_FW_VI_CMD_ALLOC | FW_LEN16(c));
4837 c.type_to_viid = htons(V_FW_VI_CMD_TYPE(idstype) |
4838 V_FW_VI_CMD_FUNC(portfunc));
4839 c.portid_pkd = V_FW_VI_CMD_PORTID(port);
4840 c.nmac = nmac - 1;
4841
4842 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
4843 if (ret)
4844 return ret;
4845
4846 if (mac) {
4847 memcpy(mac, c.mac, sizeof(c.mac));
4848 switch (nmac) {
4849 case 5:
4850 memcpy(mac + 24, c.nmac3, sizeof(c.nmac3));
4851 case 4:
4852 memcpy(mac + 18, c.nmac2, sizeof(c.nmac2));
4853 case 3:
4854 memcpy(mac + 12, c.nmac1, sizeof(c.nmac1));
4855 case 2:
4856 memcpy(mac + 6, c.nmac0, sizeof(c.nmac0));
4857 }
4858 }
4859 if (rss_size)
4860 *rss_size = G_FW_VI_CMD_RSSSIZE(ntohs(c.norss_rsssize));
4861 return G_FW_VI_CMD_VIID(htons(c.type_to_viid));
4862}
4863
4864/**
4865 * t4_alloc_vi - allocate an [Ethernet Function] virtual interface
4866 * @adap: the adapter
4867 * @mbox: mailbox to use for the FW command
4868 * @port: physical port associated with the VI
4869 * @pf: the PF owning the VI
4870 * @vf: the VF owning the VI
4871 * @nmac: number of MAC addresses needed (1 to 5)
4872 * @mac: the MAC addresses of the VI
4873 * @rss_size: size of RSS table slice associated with this VI
4874 *
4875 * backwards compatible and convieniance routine to allocate a Virtual
4876 * Interface with a Ethernet Port Application Function and Intrustion
4877 * Detection System disabled.
4878 */
4879int t4_alloc_vi(struct adapter *adap, unsigned int mbox, unsigned int port,
4880 unsigned int pf, unsigned int vf, unsigned int nmac, u8 *mac,
4881 unsigned int *rss_size)
4882{
4883 return t4_alloc_vi_func(adap, mbox, port, pf, vf, nmac, mac, rss_size,
4884 FW_VI_FUNC_ETH, 0);
4885}
4886
4887/**
4888 * t4_free_vi - free a virtual interface
4889 * @adap: the adapter
4890 * @mbox: mailbox to use for the FW command
4891 * @pf: the PF owning the VI
4892 * @vf: the VF owning the VI
4893 * @viid: virtual interface identifiler
4894 *
4895 * Free a previously allocated virtual interface.
4896 */
4897int t4_free_vi(struct adapter *adap, unsigned int mbox, unsigned int pf,
4898 unsigned int vf, unsigned int viid)
4899{
4900 struct fw_vi_cmd c;
4901
4902 memset(&c, 0, sizeof(c));
4903 c.op_to_vfn = htonl(V_FW_CMD_OP(FW_VI_CMD) |
4904 F_FW_CMD_REQUEST |
4905 F_FW_CMD_EXEC |
4906 V_FW_VI_CMD_PFN(pf) |
4907 V_FW_VI_CMD_VFN(vf));
4908 c.alloc_to_len16 = htonl(F_FW_VI_CMD_FREE | FW_LEN16(c));
4909 c.type_to_viid = htons(V_FW_VI_CMD_VIID(viid));
4910
4911 return t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
4912}
4913
4914/**
4915 * t4_set_rxmode - set Rx properties of a virtual interface
4916 * @adap: the adapter
4917 * @mbox: mailbox to use for the FW command
4918 * @viid: the VI id
4919 * @mtu: the new MTU or -1
4920 * @promisc: 1 to enable promiscuous mode, 0 to disable it, -1 no change
4921 * @all_multi: 1 to enable all-multi mode, 0 to disable it, -1 no change
4922 * @bcast: 1 to enable broadcast Rx, 0 to disable it, -1 no change
4923 * @vlanex: 1 to enable HVLAN extraction, 0 to disable it, -1 no change
4924 * @sleep_ok: if true we may sleep while awaiting command completion
4925 *
4926 * Sets Rx properties of a virtual interface.
4927 */
4928int t4_set_rxmode(struct adapter *adap, unsigned int mbox, unsigned int viid,
4929 int mtu, int promisc, int all_multi, int bcast, int vlanex,
4930 bool sleep_ok)
4931{
4932 struct fw_vi_rxmode_cmd c;
4933
4934 /* convert to FW values */
4935 if (mtu < 0)
4936 mtu = M_FW_VI_RXMODE_CMD_MTU;
4937 if (promisc < 0)
4938 promisc = M_FW_VI_RXMODE_CMD_PROMISCEN;
4939 if (all_multi < 0)
4940 all_multi = M_FW_VI_RXMODE_CMD_ALLMULTIEN;
4941 if (bcast < 0)
4942 bcast = M_FW_VI_RXMODE_CMD_BROADCASTEN;
4943 if (vlanex < 0)
4944 vlanex = M_FW_VI_RXMODE_CMD_VLANEXEN;
4945
4946 memset(&c, 0, sizeof(c));
4947 c.op_to_viid = htonl(V_FW_CMD_OP(FW_VI_RXMODE_CMD) | F_FW_CMD_REQUEST |
4948 F_FW_CMD_WRITE | V_FW_VI_RXMODE_CMD_VIID(viid));
4949 c.retval_len16 = htonl(FW_LEN16(c));
4950 c.mtu_to_vlanexen = htonl(V_FW_VI_RXMODE_CMD_MTU(mtu) |
4951 V_FW_VI_RXMODE_CMD_PROMISCEN(promisc) |
4952 V_FW_VI_RXMODE_CMD_ALLMULTIEN(all_multi) |
4953 V_FW_VI_RXMODE_CMD_BROADCASTEN(bcast) |
4954 V_FW_VI_RXMODE_CMD_VLANEXEN(vlanex));
4955 return t4_wr_mbox_meat(adap, mbox, &c, sizeof(c), NULL, sleep_ok);
4956}
4957
4958/**
4959 * t4_alloc_mac_filt - allocates exact-match filters for MAC addresses
4960 * @adap: the adapter
4961 * @mbox: mailbox to use for the FW command
4962 * @viid: the VI id
4963 * @free: if true any existing filters for this VI id are first removed
4964 * @naddr: the number of MAC addresses to allocate filters for (up to 7)
4965 * @addr: the MAC address(es)
4966 * @idx: where to store the index of each allocated filter
4967 * @hash: pointer to hash address filter bitmap
4968 * @sleep_ok: call is allowed to sleep
4969 *
4970 * Allocates an exact-match filter for each of the supplied addresses and
4971 * sets it to the corresponding address. If @idx is not %NULL it should
4972 * have at least @naddr entries, each of which will be set to the index of
4973 * the filter allocated for the corresponding MAC address. If a filter
4974 * could not be allocated for an address its index is set to 0xffff.
4975 * If @hash is not %NULL addresses that fail to allocate an exact filter
4976 * are hashed and update the hash filter bitmap pointed at by @hash.
4977 *
4978 * Returns a negative error number or the number of filters allocated.
4979 */
4980int t4_alloc_mac_filt(struct adapter *adap, unsigned int mbox,
4981 unsigned int viid, bool free, unsigned int naddr,
4982 const u8 **addr, u16 *idx, u64 *hash, bool sleep_ok)
4983{
4984 int offset, ret = 0;
4985 struct fw_vi_mac_cmd c;
4986 unsigned int nfilters = 0;
4987 unsigned int max_naddr = is_t4(adap) ?
4988 NUM_MPS_CLS_SRAM_L_INSTANCES :
4989 NUM_MPS_T5_CLS_SRAM_L_INSTANCES;
4990 unsigned int rem = naddr;
4991
4992 if (naddr > max_naddr)
4993 return -EINVAL;
4994
4995 for (offset = 0; offset < naddr ; /**/) {
4996 unsigned int fw_naddr = (rem < ARRAY_SIZE(c.u.exact)
4997 ? rem
4998 : ARRAY_SIZE(c.u.exact));
4999 size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
5000 u.exact[fw_naddr]), 16);
5001 struct fw_vi_mac_exact *p;
5002 int i;
5003
5004 memset(&c, 0, sizeof(c));
5005 c.op_to_viid = htonl(V_FW_CMD_OP(FW_VI_MAC_CMD) |
5006 F_FW_CMD_REQUEST |
5007 F_FW_CMD_WRITE |
5008 V_FW_CMD_EXEC(free) |
5009 V_FW_VI_MAC_CMD_VIID(viid));
5010 c.freemacs_to_len16 = htonl(V_FW_VI_MAC_CMD_FREEMACS(free) |
5011 V_FW_CMD_LEN16(len16));
5012
5013 for (i = 0, p = c.u.exact; i < fw_naddr; i++, p++) {
5014 p->valid_to_idx = htons(
5015 F_FW_VI_MAC_CMD_VALID |
5016 V_FW_VI_MAC_CMD_IDX(FW_VI_MAC_ADD_MAC));
5017 memcpy(p->macaddr, addr[offset+i], sizeof(p->macaddr));
5018 }
5019
5020 /*
5021 * It's okay if we run out of space in our MAC address arena.
5022 * Some of the addresses we submit may get stored so we need
5023 * to run through the reply to see what the results were ...
5024 */
5025 ret = t4_wr_mbox_meat(adap, mbox, &c, sizeof(c), &c, sleep_ok);
5026 if (ret && ret != -FW_ENOMEM)
5027 break;
5028
5029 for (i = 0, p = c.u.exact; i < fw_naddr; i++, p++) {
5030 u16 index = G_FW_VI_MAC_CMD_IDX(ntohs(p->valid_to_idx));
5031
5032 if (idx)
5033 idx[offset+i] = (index >= max_naddr
5034 ? 0xffff
5035 : index);
5036 if (index < max_naddr)
5037 nfilters++;
5038 else if (hash)
5039 *hash |= (1ULL << hash_mac_addr(addr[offset+i]));
5040 }
5041
5042 free = false;
5043 offset += fw_naddr;
5044 rem -= fw_naddr;
5045 }
5046
5047 if (ret == 0 || ret == -FW_ENOMEM)
5048 ret = nfilters;
5049 return ret;
5050}
5051
5052/**
5053 * t4_change_mac - modifies the exact-match filter for a MAC address
5054 * @adap: the adapter
5055 * @mbox: mailbox to use for the FW command
5056 * @viid: the VI id
5057 * @idx: index of existing filter for old value of MAC address, or -1
5058 * @addr: the new MAC address value
5059 * @persist: whether a new MAC allocation should be persistent
5060 * @add_smt: if true also add the address to the HW SMT
5061 *
5062 * Modifies an exact-match filter and sets it to the new MAC address if
5063 * @idx >= 0, or adds the MAC address to a new filter if @idx < 0. In the
5064 * latter case the address is added persistently if @persist is %true.
5065 *
5066 * Note that in general it is not possible to modify the value of a given
5067 * filter so the generic way to modify an address filter is to free the one
5068 * being used by the old address value and allocate a new filter for the
5069 * new address value.
5070 *
5071 * Returns a negative error number or the index of the filter with the new
5072 * MAC value. Note that this index may differ from @idx.
5073 */
5074int t4_change_mac(struct adapter *adap, unsigned int mbox, unsigned int viid,
5075 int idx, const u8 *addr, bool persist, bool add_smt)
5076{
5077 int ret, mode;
5078 struct fw_vi_mac_cmd c;
5079 struct fw_vi_mac_exact *p = c.u.exact;
5080 unsigned int max_mac_addr = is_t4(adap) ?
5081 NUM_MPS_CLS_SRAM_L_INSTANCES :
5082 NUM_MPS_T5_CLS_SRAM_L_INSTANCES;
5083
5084 if (idx < 0) /* new allocation */
5085 idx = persist ? FW_VI_MAC_ADD_PERSIST_MAC : FW_VI_MAC_ADD_MAC;
5086 mode = add_smt ? FW_VI_MAC_SMT_AND_MPSTCAM : FW_VI_MAC_MPS_TCAM_ENTRY;
5087
5088 memset(&c, 0, sizeof(c));
5089 c.op_to_viid = htonl(V_FW_CMD_OP(FW_VI_MAC_CMD) | F_FW_CMD_REQUEST |
5090 F_FW_CMD_WRITE | V_FW_VI_MAC_CMD_VIID(viid));
5091 c.freemacs_to_len16 = htonl(V_FW_CMD_LEN16(1));
5092 p->valid_to_idx = htons(F_FW_VI_MAC_CMD_VALID |
5093 V_FW_VI_MAC_CMD_SMAC_RESULT(mode) |
5094 V_FW_VI_MAC_CMD_IDX(idx));
5095 memcpy(p->macaddr, addr, sizeof(p->macaddr));
5096
5097 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
5098 if (ret == 0) {
5099 ret = G_FW_VI_MAC_CMD_IDX(ntohs(p->valid_to_idx));
5100 if (ret >= max_mac_addr)
5101 ret = -ENOMEM;
5102 }
5103 return ret;
5104}
5105
5106/**
5107 * t4_set_addr_hash - program the MAC inexact-match hash filter
5108 * @adap: the adapter
5109 * @mbox: mailbox to use for the FW command
5110 * @viid: the VI id
5111 * @ucast: whether the hash filter should also match unicast addresses
5112 * @vec: the value to be written to the hash filter
5113 * @sleep_ok: call is allowed to sleep
5114 *
5115 * Sets the 64-bit inexact-match hash filter for a virtual interface.
5116 */
5117int t4_set_addr_hash(struct adapter *adap, unsigned int mbox, unsigned int viid,
5118 bool ucast, u64 vec, bool sleep_ok)
5119{
5120 struct fw_vi_mac_cmd c;
5121
5122 memset(&c, 0, sizeof(c));
5123 c.op_to_viid = htonl(V_FW_CMD_OP(FW_VI_MAC_CMD) | F_FW_CMD_REQUEST |
5124 F_FW_CMD_WRITE | V_FW_VI_ENABLE_CMD_VIID(viid));
5125 c.freemacs_to_len16 = htonl(F_FW_VI_MAC_CMD_HASHVECEN |
5126 V_FW_VI_MAC_CMD_HASHUNIEN(ucast) |
5127 V_FW_CMD_LEN16(1));
5128 c.u.hash.hashvec = cpu_to_be64(vec);
5129 return t4_wr_mbox_meat(adap, mbox, &c, sizeof(c), NULL, sleep_ok);
5130}
5131
5132/**
5133 * t4_enable_vi - enable/disable a virtual interface
5134 * @adap: the adapter
5135 * @mbox: mailbox to use for the FW command
5136 * @viid: the VI id
5137 * @rx_en: 1=enable Rx, 0=disable Rx
5138 * @tx_en: 1=enable Tx, 0=disable Tx
5139 *
5140 * Enables/disables a virtual interface.
5141 */
5142int t4_enable_vi(struct adapter *adap, unsigned int mbox, unsigned int viid,
5143 bool rx_en, bool tx_en)
5144{
5145 struct fw_vi_enable_cmd c;
5146
5147 memset(&c, 0, sizeof(c));
5148 c.op_to_viid = htonl(V_FW_CMD_OP(FW_VI_ENABLE_CMD) | F_FW_CMD_REQUEST |
5149 F_FW_CMD_EXEC | V_FW_VI_ENABLE_CMD_VIID(viid));
5150 c.ien_to_len16 = htonl(V_FW_VI_ENABLE_CMD_IEN(rx_en) |
5151 V_FW_VI_ENABLE_CMD_EEN(tx_en) | FW_LEN16(c));
5152 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
5153}
5154
5155/**
5156 * t4_identify_port - identify a VI's port by blinking its LED
5157 * @adap: the adapter
5158 * @mbox: mailbox to use for the FW command
5159 * @viid: the VI id
5160 * @nblinks: how many times to blink LED at 2.5 Hz
5161 *
5162 * Identifies a VI's port by blinking its LED.
5163 */
5164int t4_identify_port(struct adapter *adap, unsigned int mbox, unsigned int viid,
5165 unsigned int nblinks)
5166{
5167 struct fw_vi_enable_cmd c;
5168
5169 memset(&c, 0, sizeof(c));
5170 c.op_to_viid = htonl(V_FW_CMD_OP(FW_VI_ENABLE_CMD) | F_FW_CMD_REQUEST |
5171 F_FW_CMD_EXEC | V_FW_VI_ENABLE_CMD_VIID(viid));
5172 c.ien_to_len16 = htonl(F_FW_VI_ENABLE_CMD_LED | FW_LEN16(c));
5173 c.blinkdur = htons(nblinks);
5174 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
5175}
5176
5177/**
5178 * t4_iq_start_stop - enable/disable an ingress queue and its FLs
5179 * @adap: the adapter
5180 * @mbox: mailbox to use for the FW command
5181 * @start: %true to enable the queues, %false to disable them
5182 * @pf: the PF owning the queues
5183 * @vf: the VF owning the queues
5184 * @iqid: ingress queue id
5185 * @fl0id: FL0 queue id or 0xffff if no attached FL0
5186 * @fl1id: FL1 queue id or 0xffff if no attached FL1
5187 *
5188 * Starts or stops an ingress queue and its associated FLs, if any.
5189 */
5190int t4_iq_start_stop(struct adapter *adap, unsigned int mbox, bool start,
5191 unsigned int pf, unsigned int vf, unsigned int iqid,
5192 unsigned int fl0id, unsigned int fl1id)
5193{
5194 struct fw_iq_cmd c;
5195
5196 memset(&c, 0, sizeof(c));
5197 c.op_to_vfn = htonl(V_FW_CMD_OP(FW_IQ_CMD) | F_FW_CMD_REQUEST |
5198 F_FW_CMD_EXEC | V_FW_IQ_CMD_PFN(pf) |
5199 V_FW_IQ_CMD_VFN(vf));
5200 c.alloc_to_len16 = htonl(V_FW_IQ_CMD_IQSTART(start) |
5201 V_FW_IQ_CMD_IQSTOP(!start) | FW_LEN16(c));
5202 c.iqid = htons(iqid);
5203 c.fl0id = htons(fl0id);
5204 c.fl1id = htons(fl1id);
5205 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
5206}
5207
5208/**
5209 * t4_iq_free - free an ingress queue and its FLs
5210 * @adap: the adapter
5211 * @mbox: mailbox to use for the FW command
5212 * @pf: the PF owning the queues
5213 * @vf: the VF owning the queues
5214 * @iqtype: the ingress queue type (FW_IQ_TYPE_FL_INT_CAP, etc.)
5215 * @iqid: ingress queue id
5216 * @fl0id: FL0 queue id or 0xffff if no attached FL0
5217 * @fl1id: FL1 queue id or 0xffff if no attached FL1
5218 *
5219 * Frees an ingress queue and its associated FLs, if any.
5220 */
5221int t4_iq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
5222 unsigned int vf, unsigned int iqtype, unsigned int iqid,
5223 unsigned int fl0id, unsigned int fl1id)
5224{
5225 struct fw_iq_cmd c;
5226
5227 memset(&c, 0, sizeof(c));
5228 c.op_to_vfn = htonl(V_FW_CMD_OP(FW_IQ_CMD) | F_FW_CMD_REQUEST |
5229 F_FW_CMD_EXEC | V_FW_IQ_CMD_PFN(pf) |
5230 V_FW_IQ_CMD_VFN(vf));
5231 c.alloc_to_len16 = htonl(F_FW_IQ_CMD_FREE | FW_LEN16(c));
5232 c.type_to_iqandstindex = htonl(V_FW_IQ_CMD_TYPE(iqtype));
5233 c.iqid = htons(iqid);
5234 c.fl0id = htons(fl0id);
5235 c.fl1id = htons(fl1id);
5236 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
5237}
5238
5239/**
5240 * t4_eth_eq_free - free an Ethernet egress queue
5241 * @adap: the adapter
5242 * @mbox: mailbox to use for the FW command
5243 * @pf: the PF owning the queue
5244 * @vf: the VF owning the queue
5245 * @eqid: egress queue id
5246 *
5247 * Frees an Ethernet egress queue.
5248 */
5249int t4_eth_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
5250 unsigned int vf, unsigned int eqid)
5251{
5252 struct fw_eq_eth_cmd c;
5253
5254 memset(&c, 0, sizeof(c));
5255 c.op_to_vfn = htonl(V_FW_CMD_OP(FW_EQ_ETH_CMD) | F_FW_CMD_REQUEST |
5256 F_FW_CMD_EXEC | V_FW_EQ_ETH_CMD_PFN(pf) |
5257 V_FW_EQ_ETH_CMD_VFN(vf));
5258 c.alloc_to_len16 = htonl(F_FW_EQ_ETH_CMD_FREE | FW_LEN16(c));
5259 c.eqid_pkd = htonl(V_FW_EQ_ETH_CMD_EQID(eqid));
5260 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
5261}
5262
5263/**
5264 * t4_ctrl_eq_free - free a control egress queue
5265 * @adap: the adapter
5266 * @mbox: mailbox to use for the FW command
5267 * @pf: the PF owning the queue
5268 * @vf: the VF owning the queue
5269 * @eqid: egress queue id
5270 *
5271 * Frees a control egress queue.
5272 */
5273int t4_ctrl_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
5274 unsigned int vf, unsigned int eqid)
5275{
5276 struct fw_eq_ctrl_cmd c;
5277
5278 memset(&c, 0, sizeof(c));
5279 c.op_to_vfn = htonl(V_FW_CMD_OP(FW_EQ_CTRL_CMD) | F_FW_CMD_REQUEST |
5280 F_FW_CMD_EXEC | V_FW_EQ_CTRL_CMD_PFN(pf) |
5281 V_FW_EQ_CTRL_CMD_VFN(vf));
5282 c.alloc_to_len16 = htonl(F_FW_EQ_CTRL_CMD_FREE | FW_LEN16(c));
5283 c.cmpliqid_eqid = htonl(V_FW_EQ_CTRL_CMD_EQID(eqid));
5284 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
5285}
5286
5287/**
5288 * t4_ofld_eq_free - free an offload egress queue
5289 * @adap: the adapter
5290 * @mbox: mailbox to use for the FW command
5291 * @pf: the PF owning the queue
5292 * @vf: the VF owning the queue
5293 * @eqid: egress queue id
5294 *
5295 * Frees a control egress queue.
5296 */
5297int t4_ofld_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
5298 unsigned int vf, unsigned int eqid)
5299{
5300 struct fw_eq_ofld_cmd c;
5301
5302 memset(&c, 0, sizeof(c));
5303 c.op_to_vfn = htonl(V_FW_CMD_OP(FW_EQ_OFLD_CMD) | F_FW_CMD_REQUEST |
5304 F_FW_CMD_EXEC | V_FW_EQ_OFLD_CMD_PFN(pf) |
5305 V_FW_EQ_OFLD_CMD_VFN(vf));
5306 c.alloc_to_len16 = htonl(F_FW_EQ_OFLD_CMD_FREE | FW_LEN16(c));
5307 c.eqid_pkd = htonl(V_FW_EQ_OFLD_CMD_EQID(eqid));
5308 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
5309}
5310
5311/**
5312 * t4_handle_fw_rpl - process a FW reply message
5313 * @adap: the adapter
5314 * @rpl: start of the FW message
5315 *
5316 * Processes a FW message, such as link state change messages.
5317 */
5318int t4_handle_fw_rpl(struct adapter *adap, const __be64 *rpl)
5319{
5320 u8 opcode = *(const u8 *)rpl;
5321 const struct fw_port_cmd *p = (const void *)rpl;
5322 unsigned int action = G_FW_PORT_CMD_ACTION(ntohl(p->action_to_len16));
5323
5324 if (opcode == FW_PORT_CMD && action == FW_PORT_ACTION_GET_PORT_INFO) {
5325 /* link/module state change message */
5326 int speed = 0, fc = 0, i;
5327 int chan = G_FW_PORT_CMD_PORTID(ntohl(p->op_to_portid));
5328 struct port_info *pi = NULL;
5329 struct link_config *lc;
5330 u32 stat = ntohl(p->u.info.lstatus_to_modtype);
5331 int link_ok = (stat & F_FW_PORT_CMD_LSTATUS) != 0;
5332 u32 mod = G_FW_PORT_CMD_MODTYPE(stat);
5333
5334 if (stat & F_FW_PORT_CMD_RXPAUSE)
5335 fc |= PAUSE_RX;
5336 if (stat & F_FW_PORT_CMD_TXPAUSE)
5337 fc |= PAUSE_TX;
5338 if (stat & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_100M))
5339 speed = SPEED_100;
5340 else if (stat & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_1G))
5341 speed = SPEED_1000;
5342 else if (stat & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_10G))
5343 speed = SPEED_10000;
5344 else if (stat & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_40G))
5345 speed = SPEED_40000;
5346
5347 for_each_port(adap, i) {
5348 pi = adap2pinfo(adap, i);
5349 if (pi->tx_chan == chan)
5350 break;
5351 }
5352 lc = &pi->link_cfg;
5353
5354 if (link_ok != lc->link_ok || speed != lc->speed ||
5355 fc != lc->fc) { /* something changed */
5356 int reason;
5357
5358 if (!link_ok && lc->link_ok)
5359 reason = G_FW_PORT_CMD_LINKDNRC(stat);
5360 else
5361 reason = -1;
5362
5363 lc->link_ok = link_ok;
5364 lc->speed = speed;
5365 lc->fc = fc;
5366 lc->supported = ntohs(p->u.info.pcap);
5367 t4_os_link_changed(adap, i, link_ok, reason);
5368 }
5369 if (mod != pi->mod_type) {
5370 pi->mod_type = mod;
5371 t4_os_portmod_changed(adap, i);
5372 }
5373 } else {
5374 CH_WARN_RATELIMIT(adap,
5375 "Unknown firmware reply 0x%x (0x%x)\n", opcode, action);
5376 return -EINVAL;
5377 }
5378 return 0;
5379}
5380
5381/**
5382 * get_pci_mode - determine a card's PCI mode
5383 * @adapter: the adapter
5384 * @p: where to store the PCI settings
5385 *
5386 * Determines a card's PCI mode and associated parameters, such as speed
5387 * and width.
5388 */
5389static void __devinit get_pci_mode(struct adapter *adapter,
5390 struct pci_params *p)
5391{
5392 u16 val;
5393 u32 pcie_cap;
5394
5395 pcie_cap = t4_os_find_pci_capability(adapter, PCI_CAP_ID_EXP);
5396 if (pcie_cap) {
5397 t4_os_pci_read_cfg2(adapter, pcie_cap + PCI_EXP_LNKSTA, &val);
5398 p->speed = val & PCI_EXP_LNKSTA_CLS;
5399 p->width = (val & PCI_EXP_LNKSTA_NLW) >> 4;
5400 }
5401}
5402
5403/**
5404 * init_link_config - initialize a link's SW state
5405 * @lc: structure holding the link state
5406 * @caps: link capabilities
5407 *
5408 * Initializes the SW state maintained for each link, including the link's
5409 * capabilities and default speed/flow-control/autonegotiation settings.
5410 */
5411static void __devinit init_link_config(struct link_config *lc,
5412 unsigned int caps)
5413{
5414 lc->supported = caps;
5415 lc->requested_speed = 0;
5416 lc->speed = 0;
5417 lc->requested_fc = lc->fc = PAUSE_RX | PAUSE_TX;
5418 if (lc->supported & FW_PORT_CAP_ANEG) {
5419 lc->advertising = lc->supported & ADVERT_MASK;
5420 lc->autoneg = AUTONEG_ENABLE;
5421 lc->requested_fc |= PAUSE_AUTONEG;
5422 } else {
5423 lc->advertising = 0;
5424 lc->autoneg = AUTONEG_DISABLE;
5425 }
5426}
5427
5428static int __devinit get_flash_params(struct adapter *adapter)
5429{
5430 int ret;
5431 u32 info = 0;
5432
5433 ret = sf1_write(adapter, 1, 1, 0, SF_RD_ID);
5434 if (!ret)
5435 ret = sf1_read(adapter, 3, 0, 1, &info);
5436 t4_write_reg(adapter, A_SF_OP, 0); /* unlock SF */
5437 if (ret < 0)
5438 return ret;
5439
5440 if ((info & 0xff) != 0x20) /* not a Numonix flash */
5441 return -EINVAL;
5442 info >>= 16; /* log2 of size */
5443 if (info >= 0x14 && info < 0x18)
5444 adapter->params.sf_nsec = 1 << (info - 16);
5445 else if (info == 0x18)
5446 adapter->params.sf_nsec = 64;
5447 else
5448 return -EINVAL;
5449 adapter->params.sf_size = 1 << info;
5450 return 0;
5451}
5452
5453static void __devinit set_pcie_completion_timeout(struct adapter *adapter,
5454 u8 range)
5455{
5456 u16 val;
5457 u32 pcie_cap;
5458
5459 pcie_cap = t4_os_find_pci_capability(adapter, PCI_CAP_ID_EXP);
5460 if (pcie_cap) {
5461 t4_os_pci_read_cfg2(adapter, pcie_cap + PCI_EXP_DEVCTL2, &val);
5462 val &= 0xfff0;
5463 val |= range ;
5464 t4_os_pci_write_cfg2(adapter, pcie_cap + PCI_EXP_DEVCTL2, val);
5465 }
5466}
5467
5468/**
5469 * t4_prep_adapter - prepare SW and HW for operation
5470 * @adapter: the adapter
5471 * @reset: if true perform a HW reset
5472 *
5473 * Initialize adapter SW state for the various HW modules, set initial
5474 * values for some adapter tunables, take PHYs out of reset, and
5475 * initialize the MDIO interface.
5476 */
5477int __devinit t4_prep_adapter(struct adapter *adapter)
5478{
5479 int ret;
5480 uint16_t device_id;
5481 uint32_t pl_rev;
5482
5483 get_pci_mode(adapter, &adapter->params.pci);
5484
5485 pl_rev = t4_read_reg(adapter, A_PL_REV);
5486 adapter->params.chipid = G_CHIPID(pl_rev);
5487 adapter->params.rev = G_REV(pl_rev);
5488 if (adapter->params.chipid == 0) {
5489 /* T4 did not have chipid in PL_REV (T5 onwards do) */
5490 adapter->params.chipid = CHELSIO_T4;
5491
5492 /* T4A1 chip is not supported */
5493 if (adapter->params.rev == 1) {
5494 CH_ALERT(adapter, "T4 rev 1 chip is not supported.\n");
5495 return -EINVAL;
5496 }
5497 }
5498 adapter->params.pci.vpd_cap_addr =
5499 t4_os_find_pci_capability(adapter, PCI_CAP_ID_VPD);
5500
5501 ret = get_flash_params(adapter);
5502 if (ret < 0)
5503 return ret;
5504
5505 ret = get_vpd_params(adapter, &adapter->params.vpd);
5506 if (ret < 0)
5507 return ret;
5508
5509 /* Cards with real ASICs have the chipid in the PCIe device id */
5510 t4_os_pci_read_cfg2(adapter, PCI_DEVICE_ID, &device_id);
5511 if (device_id >> 12 == adapter->params.chipid)
5512 adapter->params.cim_la_size = CIMLA_SIZE;
5513 else {
5514 /* FPGA */
5515 adapter->params.fpga = 1;
5516 adapter->params.cim_la_size = 2 * CIMLA_SIZE;
5517 }
5518
5519 init_cong_ctrl(adapter->params.a_wnd, adapter->params.b_wnd);
5520
5521 /*
5522 * Default port and clock for debugging in case we can't reach FW.
5523 */
5524 adapter->params.nports = 1;
5525 adapter->params.portvec = 1;
5526 adapter->params.vpd.cclk = 50000;
5527
5528 /* Set pci completion timeout value to 4 seconds. */
5529 set_pcie_completion_timeout(adapter, 0xd);
5530 return 0;
5531}
5532
5533/**
5534 * t4_init_tp_params - initialize adap->params.tp
5535 * @adap: the adapter
5536 *
5537 * Initialize various fields of the adapter's TP Parameters structure.
5538 */
5539int __devinit t4_init_tp_params(struct adapter *adap)
5540{
5541 int chan;
5542 u32 v;
5543
5544 v = t4_read_reg(adap, A_TP_TIMER_RESOLUTION);
5545 adap->params.tp.tre = G_TIMERRESOLUTION(v);
5546 adap->params.tp.dack_re = G_DELAYEDACKRESOLUTION(v);
5547
5548 /* MODQ_REQ_MAP defaults to setting queues 0-3 to chan 0-3 */
5549 for (chan = 0; chan < NCHAN; chan++)
5550 adap->params.tp.tx_modq[chan] = chan;
5551
5552 /*
5553 * Cache the adapter's Compressed Filter Mode and global Incress
5554 * Configuration.
5555 */
5556 t4_read_indirect(adap, A_TP_PIO_ADDR, A_TP_PIO_DATA,
5557 &adap->params.tp.vlan_pri_map, 1,
5558 A_TP_VLAN_PRI_MAP);
5559 t4_read_indirect(adap, A_TP_PIO_ADDR, A_TP_PIO_DATA,
5560 &adap->params.tp.ingress_config, 1,
5561 A_TP_INGRESS_CONFIG);
5562
5563 /*
5564 * Now that we have TP_VLAN_PRI_MAP cached, we can calculate the field
5565 * shift positions of several elements of the Compressed Filter Tuple
5566 * for this adapter which we need frequently ...
5567 */
5568 adap->params.tp.vlan_shift = t4_filter_field_shift(adap, F_VLAN);
5569 adap->params.tp.vnic_shift = t4_filter_field_shift(adap, F_VNIC_ID);
5570 adap->params.tp.port_shift = t4_filter_field_shift(adap, F_PORT);
5571 adap->params.tp.protocol_shift = t4_filter_field_shift(adap, F_PROTOCOL);
5572
5573 /*
5574 * If TP_INGRESS_CONFIG.VNID == 0, then TP_VLAN_PRI_MAP.VNIC_ID
5575 * represents the presense of an Outer VLAN instead of a VNIC ID.
5576 */
5577 if ((adap->params.tp.ingress_config & F_VNIC) == 0)
5578 adap->params.tp.vnic_shift = -1;
5579
5580 return 0;
5581}
5582
5583/**
5584 * t4_filter_field_shift - calculate filter field shift
5585 * @adap: the adapter
5586 * @filter_sel: the desired field (from TP_VLAN_PRI_MAP bits)
5587 *
5588 * Return the shift position of a filter field within the Compressed
5589 * Filter Tuple. The filter field is specified via its selection bit
5590 * within TP_VLAN_PRI_MAL (filter mode). E.g. F_VLAN.
5591 */
5592int t4_filter_field_shift(const struct adapter *adap, int filter_sel)
5593{
5594 unsigned int filter_mode = adap->params.tp.vlan_pri_map;
5595 unsigned int sel;
5596 int field_shift;
5597
5598 if ((filter_mode & filter_sel) == 0)
5599 return -1;
5600
5601 for (sel = 1, field_shift = 0; sel < filter_sel; sel <<= 1) {
5602 switch (filter_mode & sel) {
5603 case F_FCOE: field_shift += W_FT_FCOE; break;
5604 case F_PORT: field_shift += W_FT_PORT; break;
5605 case F_VNIC_ID: field_shift += W_FT_VNIC_ID; break;
5606 case F_VLAN: field_shift += W_FT_VLAN; break;
5607 case F_TOS: field_shift += W_FT_TOS; break;
5608 case F_PROTOCOL: field_shift += W_FT_PROTOCOL; break;
5609 case F_ETHERTYPE: field_shift += W_FT_ETHERTYPE; break;
5610 case F_MACMATCH: field_shift += W_FT_MACMATCH; break;
5611 case F_MPSHITTYPE: field_shift += W_FT_MPSHITTYPE; break;
5612 case F_FRAGMENTATION: field_shift += W_FT_FRAGMENTATION; break;
5613 }
5614 }
5615 return field_shift;
5616}
5617
5618int __devinit t4_port_init(struct port_info *p, int mbox, int pf, int vf)
5619{
5620 u8 addr[6];
5621 int ret, i, j;
5622 struct fw_port_cmd c;
5623 unsigned int rss_size;
5624 adapter_t *adap = p->adapter;
5625
5626 memset(&c, 0, sizeof(c));
5627
5628 for (i = 0, j = -1; i <= p->port_id; i++) {
5629 do {
5630 j++;
5631 } while ((adap->params.portvec & (1 << j)) == 0);
5632 }
5633
5634 c.op_to_portid = htonl(V_FW_CMD_OP(FW_PORT_CMD) |
5635 F_FW_CMD_REQUEST | F_FW_CMD_READ |
5636 V_FW_PORT_CMD_PORTID(j));
5637 c.action_to_len16 = htonl(
5638 V_FW_PORT_CMD_ACTION(FW_PORT_ACTION_GET_PORT_INFO) |
5639 FW_LEN16(c));
5640 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
5641 if (ret)
5642 return ret;
5643
5644 ret = t4_alloc_vi(adap, mbox, j, pf, vf, 1, addr, &rss_size);
5645 if (ret < 0)
5646 return ret;
5647
5648 p->viid = ret;
5649 p->tx_chan = j;
5650 p->lport = j;
5651 p->rss_size = rss_size;
5652 t4_os_set_hw_addr(adap, p->port_id, addr);
5653
5654 ret = ntohl(c.u.info.lstatus_to_modtype);
5655 p->mdio_addr = (ret & F_FW_PORT_CMD_MDIOCAP) ?
5656 G_FW_PORT_CMD_MDIOADDR(ret) : -1;
5657 p->port_type = G_FW_PORT_CMD_PTYPE(ret);
5658 p->mod_type = G_FW_PORT_CMD_MODTYPE(ret);
5659
5660 init_link_config(&p->link_cfg, ntohs(c.u.info.pcap));
5661
5662 return 0;
5663}
|