2 * This file is part of the Chelsio T4 Ethernet driver for Linux.
4 * Copyright (c) 2003-2010 Chelsio Communications, Inc. All rights reserved.
6 * This software is available to you under a choice of one of two
7 * licenses. You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
20 * - Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials
23 * provided with the distribution.
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
35 #include <linux/init.h>
36 #include <linux/delay.h>
42 * t4_wait_op_done_val - wait until an operation is completed
43 * @adapter: the adapter performing the operation
44 * @reg: the register to check for completion
45 * @mask: a single-bit field within @reg that indicates completion
46 * @polarity: the value of the field when the operation is completed
47 * @attempts: number of check iterations
48 * @delay: delay in usecs between iterations
49 * @valp: where to store the value of the register at completion time
51 * Wait until an operation is completed by checking a bit in a register
52 * up to @attempts times. If @valp is not NULL the value of the register
53 * at the time it indicated completion is stored there. Returns 0 if the
54 * operation completes and -EAGAIN otherwise.
56 static int t4_wait_op_done_val(struct adapter *adapter, int reg, u32 mask,
57 int polarity, int attempts, int delay, u32 *valp)
60 u32 val = t4_read_reg(adapter, reg);
62 if (!!(val & mask) == polarity) {
74 static inline int t4_wait_op_done(struct adapter *adapter, int reg, u32 mask,
75 int polarity, int attempts, int delay)
77 return t4_wait_op_done_val(adapter, reg, mask, polarity, attempts,
82 * t4_set_reg_field - set a register field to a value
83 * @adapter: the adapter to program
84 * @addr: the register address
85 * @mask: specifies the portion of the register to modify
86 * @val: the new value for the register field
88 * Sets a register field specified by the supplied mask to the
91 void t4_set_reg_field(struct adapter *adapter, unsigned int addr, u32 mask,
94 u32 v = t4_read_reg(adapter, addr) & ~mask;
96 t4_write_reg(adapter, addr, v | val);
97 (void) t4_read_reg(adapter, addr); /* flush */
101 * t4_read_indirect - read indirectly addressed registers
103 * @addr_reg: register holding the indirect address
104 * @data_reg: register holding the value of the indirect register
105 * @vals: where the read register values are stored
106 * @nregs: how many indirect registers to read
107 * @start_idx: index of first indirect register to read
109 * Reads registers that are accessed indirectly through an address/data
112 static void t4_read_indirect(struct adapter *adap, unsigned int addr_reg,
113 unsigned int data_reg, u32 *vals,
114 unsigned int nregs, unsigned int start_idx)
117 t4_write_reg(adap, addr_reg, start_idx);
118 *vals++ = t4_read_reg(adap, data_reg);
124 * Get the reply to a mailbox command and store it in @rpl in big-endian order.
126 static void get_mbox_rpl(struct adapter *adap, __be64 *rpl, int nflit,
129 for ( ; nflit; nflit--, mbox_addr += 8)
130 *rpl++ = cpu_to_be64(t4_read_reg64(adap, mbox_addr));
134 * Handle a FW assertion reported in a mailbox.
136 static void fw_asrt(struct adapter *adap, u32 mbox_addr)
138 struct fw_debug_cmd asrt;
140 get_mbox_rpl(adap, (__be64 *)&asrt, sizeof(asrt) / 8, mbox_addr);
141 dev_alert(adap->pdev_dev,
142 "FW assertion at %.16s:%u, val0 %#x, val1 %#x\n",
143 asrt.u.assert.filename_0_7, ntohl(asrt.u.assert.line),
144 ntohl(asrt.u.assert.x), ntohl(asrt.u.assert.y));
147 static void dump_mbox(struct adapter *adap, int mbox, u32 data_reg)
149 dev_err(adap->pdev_dev,
150 "mbox %d: %llx %llx %llx %llx %llx %llx %llx %llx\n", mbox,
151 (unsigned long long)t4_read_reg64(adap, data_reg),
152 (unsigned long long)t4_read_reg64(adap, data_reg + 8),
153 (unsigned long long)t4_read_reg64(adap, data_reg + 16),
154 (unsigned long long)t4_read_reg64(adap, data_reg + 24),
155 (unsigned long long)t4_read_reg64(adap, data_reg + 32),
156 (unsigned long long)t4_read_reg64(adap, data_reg + 40),
157 (unsigned long long)t4_read_reg64(adap, data_reg + 48),
158 (unsigned long long)t4_read_reg64(adap, data_reg + 56));
162 * t4_wr_mbox_meat - send a command to FW through the given mailbox
164 * @mbox: index of the mailbox to use
165 * @cmd: the command to write
166 * @size: command length in bytes
167 * @rpl: where to optionally store the reply
168 * @sleep_ok: if true we may sleep while awaiting command completion
170 * Sends the given command to FW through the selected mailbox and waits
171 * for the FW to execute the command. If @rpl is not %NULL it is used to
172 * store the FW's reply to the command. The command and its optional
173 * reply are of the same length. FW can take up to %FW_CMD_MAX_TIMEOUT ms
174 * to respond. @sleep_ok determines whether we may sleep while awaiting
175 * the response. If sleeping is allowed we use progressive backoff
178 * The return value is 0 on success or a negative errno on failure. A
179 * failure can happen either because we are not able to execute the
180 * command or FW executes it but signals an error. In the latter case
181 * the return value is the error code indicated by FW (negated).
183 int t4_wr_mbox_meat(struct adapter *adap, int mbox, const void *cmd, int size,
184 void *rpl, bool sleep_ok)
186 static const int delay[] = {
187 1, 1, 3, 5, 10, 10, 20, 50, 100, 200
192 int i, ms, delay_idx;
193 const __be64 *p = cmd;
194 u32 data_reg = PF_REG(mbox, CIM_PF_MAILBOX_DATA);
195 u32 ctl_reg = PF_REG(mbox, CIM_PF_MAILBOX_CTRL);
197 if ((size & 15) || size > MBOX_LEN)
201 * If the device is off-line, as in EEH, commands will time out.
202 * Fail them early so we don't waste time waiting.
204 if (adap->pdev->error_state != pci_channel_io_normal)
207 v = MBOWNER_GET(t4_read_reg(adap, ctl_reg));
208 for (i = 0; v == MBOX_OWNER_NONE && i < 3; i++)
209 v = MBOWNER_GET(t4_read_reg(adap, ctl_reg));
211 if (v != MBOX_OWNER_DRV)
212 return v ? -EBUSY : -ETIMEDOUT;
214 for (i = 0; i < size; i += 8)
215 t4_write_reg64(adap, data_reg + i, be64_to_cpu(*p++));
217 t4_write_reg(adap, ctl_reg, MBMSGVALID | MBOWNER(MBOX_OWNER_FW));
218 t4_read_reg(adap, ctl_reg); /* flush write */
223 for (i = 0; i < FW_CMD_MAX_TIMEOUT; i += ms) {
225 ms = delay[delay_idx]; /* last element may repeat */
226 if (delay_idx < ARRAY_SIZE(delay) - 1)
232 v = t4_read_reg(adap, ctl_reg);
233 if (MBOWNER_GET(v) == MBOX_OWNER_DRV) {
234 if (!(v & MBMSGVALID)) {
235 t4_write_reg(adap, ctl_reg, 0);
239 res = t4_read_reg64(adap, data_reg);
240 if (FW_CMD_OP_GET(res >> 32) == FW_DEBUG_CMD) {
241 fw_asrt(adap, data_reg);
242 res = FW_CMD_RETVAL(EIO);
244 get_mbox_rpl(adap, rpl, size / 8, data_reg);
246 if (FW_CMD_RETVAL_GET((int)res))
247 dump_mbox(adap, mbox, data_reg);
248 t4_write_reg(adap, ctl_reg, 0);
249 return -FW_CMD_RETVAL_GET((int)res);
253 dump_mbox(adap, mbox, data_reg);
254 dev_err(adap->pdev_dev, "command %#x in mailbox %d timed out\n",
255 *(const u8 *)cmd, mbox);
260 * t4_mc_read - read from MC through backdoor accesses
262 * @addr: address of first byte requested
263 * @data: 64 bytes of data containing the requested address
264 * @ecc: where to store the corresponding 64-bit ECC word
266 * Read 64 bytes of data from MC starting at a 64-byte-aligned address
267 * that covers the requested address @addr. If @parity is not %NULL it
268 * is assigned the 64-bit ECC word for the read data.
270 int t4_mc_read(struct adapter *adap, u32 addr, __be32 *data, u64 *ecc)
274 if (t4_read_reg(adap, MC_BIST_CMD) & START_BIST)
276 t4_write_reg(adap, MC_BIST_CMD_ADDR, addr & ~0x3fU);
277 t4_write_reg(adap, MC_BIST_CMD_LEN, 64);
278 t4_write_reg(adap, MC_BIST_DATA_PATTERN, 0xc);
279 t4_write_reg(adap, MC_BIST_CMD, BIST_OPCODE(1) | START_BIST |
281 i = t4_wait_op_done(adap, MC_BIST_CMD, START_BIST, 0, 10, 1);
285 #define MC_DATA(i) MC_BIST_STATUS_REG(MC_BIST_STATUS_RDATA, i)
287 for (i = 15; i >= 0; i--)
288 *data++ = htonl(t4_read_reg(adap, MC_DATA(i)));
290 *ecc = t4_read_reg64(adap, MC_DATA(16));
296 * t4_edc_read - read from EDC through backdoor accesses
298 * @idx: which EDC to access
299 * @addr: address of first byte requested
300 * @data: 64 bytes of data containing the requested address
301 * @ecc: where to store the corresponding 64-bit ECC word
303 * Read 64 bytes of data from EDC starting at a 64-byte-aligned address
304 * that covers the requested address @addr. If @parity is not %NULL it
305 * is assigned the 64-bit ECC word for the read data.
307 int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data, u64 *ecc)
312 if (t4_read_reg(adap, EDC_BIST_CMD + idx) & START_BIST)
314 t4_write_reg(adap, EDC_BIST_CMD_ADDR + idx, addr & ~0x3fU);
315 t4_write_reg(adap, EDC_BIST_CMD_LEN + idx, 64);
316 t4_write_reg(adap, EDC_BIST_DATA_PATTERN + idx, 0xc);
317 t4_write_reg(adap, EDC_BIST_CMD + idx,
318 BIST_OPCODE(1) | BIST_CMD_GAP(1) | START_BIST);
319 i = t4_wait_op_done(adap, EDC_BIST_CMD + idx, START_BIST, 0, 10, 1);
323 #define EDC_DATA(i) (EDC_BIST_STATUS_REG(EDC_BIST_STATUS_RDATA, i) + idx)
325 for (i = 15; i >= 0; i--)
326 *data++ = htonl(t4_read_reg(adap, EDC_DATA(i)));
328 *ecc = t4_read_reg64(adap, EDC_DATA(16));
334 * t4_mem_win_rw - read/write memory through PCIE memory window
336 * @addr: address of first byte requested
337 * @data: MEMWIN0_APERTURE bytes of data containing the requested address
338 * @dir: direction of transfer 1 => read, 0 => write
340 * Read/write MEMWIN0_APERTURE bytes of data from MC starting at a
341 * MEMWIN0_APERTURE-byte-aligned address that covers the requested
344 static int t4_mem_win_rw(struct adapter *adap, u32 addr, __be32 *data, int dir)
349 * Setup offset into PCIE memory window. Address must be a
350 * MEMWIN0_APERTURE-byte-aligned address. (Read back MA register to
351 * ensure that changes propagate before we attempt to use the new
354 t4_write_reg(adap, PCIE_MEM_ACCESS_OFFSET,
355 addr & ~(MEMWIN0_APERTURE - 1));
356 t4_read_reg(adap, PCIE_MEM_ACCESS_OFFSET);
358 /* Collecting data 4 bytes at a time upto MEMWIN0_APERTURE */
359 for (i = 0; i < MEMWIN0_APERTURE; i = i+0x4) {
361 *data++ = t4_read_reg(adap, (MEMWIN0_BASE + i));
363 t4_write_reg(adap, (MEMWIN0_BASE + i), *data++);
370 * t4_memory_rw - read/write EDC 0, EDC 1 or MC via PCIE memory window
372 * @mtype: memory type: MEM_EDC0, MEM_EDC1 or MEM_MC
373 * @addr: address within indicated memory type
374 * @len: amount of memory to transfer
375 * @buf: host memory buffer
376 * @dir: direction of transfer 1 => read, 0 => write
378 * Reads/writes an [almost] arbitrary memory region in the firmware: the
379 * firmware memory address, length and host buffer must be aligned on
380 * 32-bit boudaries. The memory is transferred as a raw byte sequence
381 * from/to the firmware's memory. If this memory contains data
382 * structures which contain multi-byte integers, it's the callers
383 * responsibility to perform appropriate byte order conversions.
385 static int t4_memory_rw(struct adapter *adap, int mtype, u32 addr, u32 len,
386 __be32 *buf, int dir)
388 u32 pos, start, end, offset, memoffset;
392 * Argument sanity checks ...
394 if ((addr & 0x3) || (len & 0x3))
398 * Offset into the region of memory which is being accessed
403 memoffset = (mtype * (5 * 1024 * 1024));
405 /* Determine the PCIE_MEM_ACCESS_OFFSET */
406 addr = addr + memoffset;
409 * The underlaying EDC/MC read routines read MEMWIN0_APERTURE bytes
410 * at a time so we need to round down the start and round up the end.
411 * We'll start copying out of the first line at (addr - start) a word
414 start = addr & ~(MEMWIN0_APERTURE-1);
415 end = (addr + len + MEMWIN0_APERTURE-1) & ~(MEMWIN0_APERTURE-1);
416 offset = (addr - start)/sizeof(__be32);
418 for (pos = start; pos < end; pos += MEMWIN0_APERTURE, offset = 0) {
419 __be32 data[MEMWIN0_APERTURE/sizeof(__be32)];
422 * If we're writing, copy the data from the caller's memory
427 * If we're doing a partial write, then we need to do
428 * a read-modify-write ...
430 if (offset || len < MEMWIN0_APERTURE) {
431 ret = t4_mem_win_rw(adap, pos, data, 1);
435 while (offset < (MEMWIN0_APERTURE/sizeof(__be32)) &&
437 data[offset++] = *buf++;
438 len -= sizeof(__be32);
443 * Transfer a block of memory and bail if there's an error.
445 ret = t4_mem_win_rw(adap, pos, data, dir);
450 * If we're reading, copy the data into the caller's memory
454 while (offset < (MEMWIN0_APERTURE/sizeof(__be32)) &&
456 *buf++ = data[offset++];
457 len -= sizeof(__be32);
464 int t4_memory_write(struct adapter *adap, int mtype, u32 addr, u32 len,
467 return t4_memory_rw(adap, mtype, addr, len, buf, 0);
470 #define EEPROM_STAT_ADDR 0x7bfc
475 * t4_seeprom_wp - enable/disable EEPROM write protection
476 * @adapter: the adapter
477 * @enable: whether to enable or disable write protection
479 * Enables or disables write protection on the serial EEPROM.
481 int t4_seeprom_wp(struct adapter *adapter, bool enable)
483 unsigned int v = enable ? 0xc : 0;
484 int ret = pci_write_vpd(adapter->pdev, EEPROM_STAT_ADDR, 4, &v);
485 return ret < 0 ? ret : 0;
489 * get_vpd_params - read VPD parameters from VPD EEPROM
490 * @adapter: adapter to read
491 * @p: where to store the parameters
493 * Reads card parameters stored in VPD EEPROM.
495 static int get_vpd_params(struct adapter *adapter, struct vpd_params *p)
499 u8 vpd[VPD_LEN], csum;
500 unsigned int vpdr_len, kw_offset, id_len;
502 ret = pci_read_vpd(adapter->pdev, VPD_BASE, sizeof(vpd), vpd);
506 if (vpd[0] != PCI_VPD_LRDT_ID_STRING) {
507 dev_err(adapter->pdev_dev, "missing VPD ID string\n");
511 id_len = pci_vpd_lrdt_size(vpd);
515 i = pci_vpd_find_tag(vpd, 0, VPD_LEN, PCI_VPD_LRDT_RO_DATA);
517 dev_err(adapter->pdev_dev, "missing VPD-R section\n");
521 vpdr_len = pci_vpd_lrdt_size(&vpd[i]);
522 kw_offset = i + PCI_VPD_LRDT_TAG_SIZE;
523 if (vpdr_len + kw_offset > VPD_LEN) {
524 dev_err(adapter->pdev_dev, "bad VPD-R length %u\n", vpdr_len);
528 #define FIND_VPD_KW(var, name) do { \
529 var = pci_vpd_find_info_keyword(vpd, kw_offset, vpdr_len, name); \
531 dev_err(adapter->pdev_dev, "missing VPD keyword " name "\n"); \
534 var += PCI_VPD_INFO_FLD_HDR_SIZE; \
537 FIND_VPD_KW(i, "RV");
538 for (csum = 0; i >= 0; i--)
542 dev_err(adapter->pdev_dev,
543 "corrupted VPD EEPROM, actual csum %u\n", csum);
547 FIND_VPD_KW(ec, "EC");
548 FIND_VPD_KW(sn, "SN");
551 memcpy(p->id, vpd + PCI_VPD_LRDT_TAG_SIZE, id_len);
553 memcpy(p->ec, vpd + ec, EC_LEN);
555 i = pci_vpd_info_field_size(vpd + sn - PCI_VPD_INFO_FLD_HDR_SIZE);
556 memcpy(p->sn, vpd + sn, min(i, SERNUM_LEN));
561 /* serial flash and firmware constants */
563 SF_ATTEMPTS = 10, /* max retries for SF operations */
565 /* flash command opcodes */
566 SF_PROG_PAGE = 2, /* program page */
567 SF_WR_DISABLE = 4, /* disable writes */
568 SF_RD_STATUS = 5, /* read status register */
569 SF_WR_ENABLE = 6, /* enable writes */
570 SF_RD_DATA_FAST = 0xb, /* read flash */
571 SF_RD_ID = 0x9f, /* read ID */
572 SF_ERASE_SECTOR = 0xd8, /* erase sector */
574 FW_MAX_SIZE = 512 * 1024,
578 * sf1_read - read data from the serial flash
579 * @adapter: the adapter
580 * @byte_cnt: number of bytes to read
581 * @cont: whether another operation will be chained
582 * @lock: whether to lock SF for PL access only
583 * @valp: where to store the read data
585 * Reads up to 4 bytes of data from the serial flash. The location of
586 * the read needs to be specified prior to calling this by issuing the
587 * appropriate commands to the serial flash.
589 static int sf1_read(struct adapter *adapter, unsigned int byte_cnt, int cont,
594 if (!byte_cnt || byte_cnt > 4)
596 if (t4_read_reg(adapter, SF_OP) & BUSY)
598 cont = cont ? SF_CONT : 0;
599 lock = lock ? SF_LOCK : 0;
600 t4_write_reg(adapter, SF_OP, lock | cont | BYTECNT(byte_cnt - 1));
601 ret = t4_wait_op_done(adapter, SF_OP, BUSY, 0, SF_ATTEMPTS, 5);
603 *valp = t4_read_reg(adapter, SF_DATA);
608 * sf1_write - write data to the serial flash
609 * @adapter: the adapter
610 * @byte_cnt: number of bytes to write
611 * @cont: whether another operation will be chained
612 * @lock: whether to lock SF for PL access only
613 * @val: value to write
615 * Writes up to 4 bytes of data to the serial flash. The location of
616 * the write needs to be specified prior to calling this by issuing the
617 * appropriate commands to the serial flash.
619 static int sf1_write(struct adapter *adapter, unsigned int byte_cnt, int cont,
622 if (!byte_cnt || byte_cnt > 4)
624 if (t4_read_reg(adapter, SF_OP) & BUSY)
626 cont = cont ? SF_CONT : 0;
627 lock = lock ? SF_LOCK : 0;
628 t4_write_reg(adapter, SF_DATA, val);
629 t4_write_reg(adapter, SF_OP, lock |
630 cont | BYTECNT(byte_cnt - 1) | OP_WR);
631 return t4_wait_op_done(adapter, SF_OP, BUSY, 0, SF_ATTEMPTS, 5);
635 * flash_wait_op - wait for a flash operation to complete
636 * @adapter: the adapter
637 * @attempts: max number of polls of the status register
638 * @delay: delay between polls in ms
640 * Wait for a flash operation to complete by polling the status register.
642 static int flash_wait_op(struct adapter *adapter, int attempts, int delay)
648 if ((ret = sf1_write(adapter, 1, 1, 1, SF_RD_STATUS)) != 0 ||
649 (ret = sf1_read(adapter, 1, 0, 1, &status)) != 0)
661 * t4_read_flash - read words from serial flash
662 * @adapter: the adapter
663 * @addr: the start address for the read
664 * @nwords: how many 32-bit words to read
665 * @data: where to store the read data
666 * @byte_oriented: whether to store data as bytes or as words
668 * Read the specified number of 32-bit words from the serial flash.
669 * If @byte_oriented is set the read data is stored as a byte array
670 * (i.e., big-endian), otherwise as 32-bit words in the platform's
673 static int t4_read_flash(struct adapter *adapter, unsigned int addr,
674 unsigned int nwords, u32 *data, int byte_oriented)
678 if (addr + nwords * sizeof(u32) > adapter->params.sf_size || (addr & 3))
681 addr = swab32(addr) | SF_RD_DATA_FAST;
683 if ((ret = sf1_write(adapter, 4, 1, 0, addr)) != 0 ||
684 (ret = sf1_read(adapter, 1, 1, 0, data)) != 0)
687 for ( ; nwords; nwords--, data++) {
688 ret = sf1_read(adapter, 4, nwords > 1, nwords == 1, data);
690 t4_write_reg(adapter, SF_OP, 0); /* unlock SF */
694 *data = htonl(*data);
700 * t4_write_flash - write up to a page of data to the serial flash
701 * @adapter: the adapter
702 * @addr: the start address to write
703 * @n: length of data to write in bytes
704 * @data: the data to write
706 * Writes up to a page of data (256 bytes) to the serial flash starting
707 * at the given address. All the data must be written to the same page.
709 static int t4_write_flash(struct adapter *adapter, unsigned int addr,
710 unsigned int n, const u8 *data)
714 unsigned int i, c, left, val, offset = addr & 0xff;
716 if (addr >= adapter->params.sf_size || offset + n > SF_PAGE_SIZE)
719 val = swab32(addr) | SF_PROG_PAGE;
721 if ((ret = sf1_write(adapter, 1, 0, 1, SF_WR_ENABLE)) != 0 ||
722 (ret = sf1_write(adapter, 4, 1, 1, val)) != 0)
725 for (left = n; left; left -= c) {
727 for (val = 0, i = 0; i < c; ++i)
728 val = (val << 8) + *data++;
730 ret = sf1_write(adapter, c, c != left, 1, val);
734 ret = flash_wait_op(adapter, 8, 1);
738 t4_write_reg(adapter, SF_OP, 0); /* unlock SF */
740 /* Read the page to verify the write succeeded */
741 ret = t4_read_flash(adapter, addr & ~0xff, ARRAY_SIZE(buf), buf, 1);
745 if (memcmp(data - n, (u8 *)buf + offset, n)) {
746 dev_err(adapter->pdev_dev,
747 "failed to correctly write the flash page at %#x\n",
754 t4_write_reg(adapter, SF_OP, 0); /* unlock SF */
759 * get_fw_version - read the firmware version
760 * @adapter: the adapter
761 * @vers: where to place the version
763 * Reads the FW version from flash.
765 static int get_fw_version(struct adapter *adapter, u32 *vers)
767 return t4_read_flash(adapter, adapter->params.sf_fw_start +
768 offsetof(struct fw_hdr, fw_ver), 1, vers, 0);
772 * get_tp_version - read the TP microcode version
773 * @adapter: the adapter
774 * @vers: where to place the version
776 * Reads the TP microcode version from flash.
778 static int get_tp_version(struct adapter *adapter, u32 *vers)
780 return t4_read_flash(adapter, adapter->params.sf_fw_start +
781 offsetof(struct fw_hdr, tp_microcode_ver),
786 * t4_check_fw_version - check if the FW is compatible with this driver
787 * @adapter: the adapter
789 * Checks if an adapter's FW is compatible with the driver. Returns 0
790 * if there's exact match, a negative error if the version could not be
791 * read or there's a major version mismatch, and a positive value if the
792 * expected major version is found but there's a minor version mismatch.
794 int t4_check_fw_version(struct adapter *adapter)
797 int ret, major, minor, micro;
799 ret = get_fw_version(adapter, &adapter->params.fw_vers);
801 ret = get_tp_version(adapter, &adapter->params.tp_vers);
803 ret = t4_read_flash(adapter, adapter->params.sf_fw_start +
804 offsetof(struct fw_hdr, intfver_nic),
809 major = FW_HDR_FW_VER_MAJOR_GET(adapter->params.fw_vers);
810 minor = FW_HDR_FW_VER_MINOR_GET(adapter->params.fw_vers);
811 micro = FW_HDR_FW_VER_MICRO_GET(adapter->params.fw_vers);
812 memcpy(adapter->params.api_vers, api_vers,
813 sizeof(adapter->params.api_vers));
815 if (major != FW_VERSION_MAJOR) { /* major mismatch - fail */
816 dev_err(adapter->pdev_dev,
817 "card FW has major version %u, driver wants %u\n",
818 major, FW_VERSION_MAJOR);
822 if (minor == FW_VERSION_MINOR && micro == FW_VERSION_MICRO)
823 return 0; /* perfect match */
825 /* Minor/micro version mismatch. Report it but often it's OK. */
830 * t4_flash_erase_sectors - erase a range of flash sectors
831 * @adapter: the adapter
832 * @start: the first sector to erase
833 * @end: the last sector to erase
835 * Erases the sectors in the given inclusive range.
837 static int t4_flash_erase_sectors(struct adapter *adapter, int start, int end)
841 while (start <= end) {
842 if ((ret = sf1_write(adapter, 1, 0, 1, SF_WR_ENABLE)) != 0 ||
843 (ret = sf1_write(adapter, 4, 0, 1,
844 SF_ERASE_SECTOR | (start << 8))) != 0 ||
845 (ret = flash_wait_op(adapter, 14, 500)) != 0) {
846 dev_err(adapter->pdev_dev,
847 "erase of flash sector %d failed, error %d\n",
853 t4_write_reg(adapter, SF_OP, 0); /* unlock SF */
858 * t4_load_fw - download firmware
860 * @fw_data: the firmware image to write
863 * Write the supplied firmware image to the card's serial flash.
865 int t4_load_fw(struct adapter *adap, const u8 *fw_data, unsigned int size)
870 u8 first_page[SF_PAGE_SIZE];
871 const u32 *p = (const u32 *)fw_data;
872 const struct fw_hdr *hdr = (const struct fw_hdr *)fw_data;
873 unsigned int sf_sec_size = adap->params.sf_size / adap->params.sf_nsec;
874 unsigned int fw_img_start = adap->params.sf_fw_start;
875 unsigned int fw_start_sec = fw_img_start / sf_sec_size;
878 dev_err(adap->pdev_dev, "FW image has no data\n");
882 dev_err(adap->pdev_dev,
883 "FW image size not multiple of 512 bytes\n");
886 if (ntohs(hdr->len512) * 512 != size) {
887 dev_err(adap->pdev_dev,
888 "FW image size differs from size in FW header\n");
891 if (size > FW_MAX_SIZE) {
892 dev_err(adap->pdev_dev, "FW image too large, max is %u bytes\n",
897 for (csum = 0, i = 0; i < size / sizeof(csum); i++)
900 if (csum != 0xffffffff) {
901 dev_err(adap->pdev_dev,
902 "corrupted firmware image, checksum %#x\n", csum);
906 i = DIV_ROUND_UP(size, sf_sec_size); /* # of sectors spanned */
907 ret = t4_flash_erase_sectors(adap, fw_start_sec, fw_start_sec + i - 1);
912 * We write the correct version at the end so the driver can see a bad
913 * version if the FW write fails. Start by writing a copy of the
914 * first page with a bad version.
916 memcpy(first_page, fw_data, SF_PAGE_SIZE);
917 ((struct fw_hdr *)first_page)->fw_ver = htonl(0xffffffff);
918 ret = t4_write_flash(adap, fw_img_start, SF_PAGE_SIZE, first_page);
923 for (size -= SF_PAGE_SIZE; size; size -= SF_PAGE_SIZE) {
924 addr += SF_PAGE_SIZE;
925 fw_data += SF_PAGE_SIZE;
926 ret = t4_write_flash(adap, addr, SF_PAGE_SIZE, fw_data);
931 ret = t4_write_flash(adap,
932 fw_img_start + offsetof(struct fw_hdr, fw_ver),
933 sizeof(hdr->fw_ver), (const u8 *)&hdr->fw_ver);
936 dev_err(adap->pdev_dev, "firmware download failed, error %d\n",
941 #define ADVERT_MASK (FW_PORT_CAP_SPEED_100M | FW_PORT_CAP_SPEED_1G |\
942 FW_PORT_CAP_SPEED_10G | FW_PORT_CAP_ANEG)
945 * t4_link_start - apply link configuration to MAC/PHY
946 * @phy: the PHY to setup
947 * @mac: the MAC to setup
948 * @lc: the requested link configuration
950 * Set up a port's MAC and PHY according to a desired link configuration.
951 * - If the PHY can auto-negotiate first decide what to advertise, then
952 * enable/disable auto-negotiation as desired, and reset.
953 * - If the PHY does not auto-negotiate just reset it.
954 * - If auto-negotiation is off set the MAC to the proper speed/duplex/FC,
955 * otherwise do it later based on the outcome of auto-negotiation.
957 int t4_link_start(struct adapter *adap, unsigned int mbox, unsigned int port,
958 struct link_config *lc)
960 struct fw_port_cmd c;
961 unsigned int fc = 0, mdi = FW_PORT_MDI(FW_PORT_MDI_AUTO);
964 if (lc->requested_fc & PAUSE_RX)
965 fc |= FW_PORT_CAP_FC_RX;
966 if (lc->requested_fc & PAUSE_TX)
967 fc |= FW_PORT_CAP_FC_TX;
969 memset(&c, 0, sizeof(c));
970 c.op_to_portid = htonl(FW_CMD_OP(FW_PORT_CMD) | FW_CMD_REQUEST |
971 FW_CMD_EXEC | FW_PORT_CMD_PORTID(port));
972 c.action_to_len16 = htonl(FW_PORT_CMD_ACTION(FW_PORT_ACTION_L1_CFG) |
975 if (!(lc->supported & FW_PORT_CAP_ANEG)) {
976 c.u.l1cfg.rcap = htonl((lc->supported & ADVERT_MASK) | fc);
977 lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
978 } else if (lc->autoneg == AUTONEG_DISABLE) {
979 c.u.l1cfg.rcap = htonl(lc->requested_speed | fc | mdi);
980 lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
982 c.u.l1cfg.rcap = htonl(lc->advertising | fc | mdi);
984 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
988 * t4_restart_aneg - restart autonegotiation
990 * @mbox: mbox to use for the FW command
993 * Restarts autonegotiation for the selected port.
995 int t4_restart_aneg(struct adapter *adap, unsigned int mbox, unsigned int port)
997 struct fw_port_cmd c;
999 memset(&c, 0, sizeof(c));
1000 c.op_to_portid = htonl(FW_CMD_OP(FW_PORT_CMD) | FW_CMD_REQUEST |
1001 FW_CMD_EXEC | FW_PORT_CMD_PORTID(port));
1002 c.action_to_len16 = htonl(FW_PORT_CMD_ACTION(FW_PORT_ACTION_L1_CFG) |
1004 c.u.l1cfg.rcap = htonl(FW_PORT_CAP_ANEG);
1005 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
1008 typedef void (*int_handler_t)(struct adapter *adap);
1011 unsigned int mask; /* bits to check in interrupt status */
1012 const char *msg; /* message to print or NULL */
1013 short stat_idx; /* stat counter to increment or -1 */
1014 unsigned short fatal; /* whether the condition reported is fatal */
1015 int_handler_t int_handler; /* platform-specific int handler */
1019 * t4_handle_intr_status - table driven interrupt handler
1020 * @adapter: the adapter that generated the interrupt
1021 * @reg: the interrupt status register to process
1022 * @acts: table of interrupt actions
1024 * A table driven interrupt handler that applies a set of masks to an
1025 * interrupt status word and performs the corresponding actions if the
1026 * interrupts described by the mask have occurred. The actions include
1027 * optionally emitting a warning or alert message. The table is terminated
1028 * by an entry specifying mask 0. Returns the number of fatal interrupt
1031 static int t4_handle_intr_status(struct adapter *adapter, unsigned int reg,
1032 const struct intr_info *acts)
1035 unsigned int mask = 0;
1036 unsigned int status = t4_read_reg(adapter, reg);
1038 for ( ; acts->mask; ++acts) {
1039 if (!(status & acts->mask))
1043 dev_alert(adapter->pdev_dev, "%s (0x%x)\n", acts->msg,
1044 status & acts->mask);
1045 } else if (acts->msg && printk_ratelimit())
1046 dev_warn(adapter->pdev_dev, "%s (0x%x)\n", acts->msg,
1047 status & acts->mask);
1048 if (acts->int_handler)
1049 acts->int_handler(adapter);
1053 if (status) /* clear processed interrupts */
1054 t4_write_reg(adapter, reg, status);
1059 * Interrupt handler for the PCIE module.
1061 static void pcie_intr_handler(struct adapter *adapter)
1063 static const struct intr_info sysbus_intr_info[] = {
1064 { RNPP, "RXNP array parity error", -1, 1 },
1065 { RPCP, "RXPC array parity error", -1, 1 },
1066 { RCIP, "RXCIF array parity error", -1, 1 },
1067 { RCCP, "Rx completions control array parity error", -1, 1 },
1068 { RFTP, "RXFT array parity error", -1, 1 },
1071 static const struct intr_info pcie_port_intr_info[] = {
1072 { TPCP, "TXPC array parity error", -1, 1 },
1073 { TNPP, "TXNP array parity error", -1, 1 },
1074 { TFTP, "TXFT array parity error", -1, 1 },
1075 { TCAP, "TXCA array parity error", -1, 1 },
1076 { TCIP, "TXCIF array parity error", -1, 1 },
1077 { RCAP, "RXCA array parity error", -1, 1 },
1078 { OTDD, "outbound request TLP discarded", -1, 1 },
1079 { RDPE, "Rx data parity error", -1, 1 },
1080 { TDUE, "Tx uncorrectable data error", -1, 1 },
1083 static const struct intr_info pcie_intr_info[] = {
1084 { MSIADDRLPERR, "MSI AddrL parity error", -1, 1 },
1085 { MSIADDRHPERR, "MSI AddrH parity error", -1, 1 },
1086 { MSIDATAPERR, "MSI data parity error", -1, 1 },
1087 { MSIXADDRLPERR, "MSI-X AddrL parity error", -1, 1 },
1088 { MSIXADDRHPERR, "MSI-X AddrH parity error", -1, 1 },
1089 { MSIXDATAPERR, "MSI-X data parity error", -1, 1 },
1090 { MSIXDIPERR, "MSI-X DI parity error", -1, 1 },
1091 { PIOCPLPERR, "PCI PIO completion FIFO parity error", -1, 1 },
1092 { PIOREQPERR, "PCI PIO request FIFO parity error", -1, 1 },
1093 { TARTAGPERR, "PCI PCI target tag FIFO parity error", -1, 1 },
1094 { CCNTPERR, "PCI CMD channel count parity error", -1, 1 },
1095 { CREQPERR, "PCI CMD channel request parity error", -1, 1 },
1096 { CRSPPERR, "PCI CMD channel response parity error", -1, 1 },
1097 { DCNTPERR, "PCI DMA channel count parity error", -1, 1 },
1098 { DREQPERR, "PCI DMA channel request parity error", -1, 1 },
1099 { DRSPPERR, "PCI DMA channel response parity error", -1, 1 },
1100 { HCNTPERR, "PCI HMA channel count parity error", -1, 1 },
1101 { HREQPERR, "PCI HMA channel request parity error", -1, 1 },
1102 { HRSPPERR, "PCI HMA channel response parity error", -1, 1 },
1103 { CFGSNPPERR, "PCI config snoop FIFO parity error", -1, 1 },
1104 { FIDPERR, "PCI FID parity error", -1, 1 },
1105 { INTXCLRPERR, "PCI INTx clear parity error", -1, 1 },
1106 { MATAGPERR, "PCI MA tag parity error", -1, 1 },
1107 { PIOTAGPERR, "PCI PIO tag parity error", -1, 1 },
1108 { RXCPLPERR, "PCI Rx completion parity error", -1, 1 },
1109 { RXWRPERR, "PCI Rx write parity error", -1, 1 },
1110 { RPLPERR, "PCI replay buffer parity error", -1, 1 },
1111 { PCIESINT, "PCI core secondary fault", -1, 1 },
1112 { PCIEPINT, "PCI core primary fault", -1, 1 },
1113 { UNXSPLCPLERR, "PCI unexpected split completion error", -1, 0 },
1119 fat = t4_handle_intr_status(adapter,
1120 PCIE_CORE_UTL_SYSTEM_BUS_AGENT_STATUS,
1122 t4_handle_intr_status(adapter,
1123 PCIE_CORE_UTL_PCI_EXPRESS_PORT_STATUS,
1124 pcie_port_intr_info) +
1125 t4_handle_intr_status(adapter, PCIE_INT_CAUSE, pcie_intr_info);
1127 t4_fatal_err(adapter);
1131 * TP interrupt handler.
1133 static void tp_intr_handler(struct adapter *adapter)
1135 static const struct intr_info tp_intr_info[] = {
1136 { 0x3fffffff, "TP parity error", -1, 1 },
1137 { FLMTXFLSTEMPTY, "TP out of Tx pages", -1, 1 },
1141 if (t4_handle_intr_status(adapter, TP_INT_CAUSE, tp_intr_info))
1142 t4_fatal_err(adapter);
1146 * SGE interrupt handler.
1148 static void sge_intr_handler(struct adapter *adapter)
1152 static const struct intr_info sge_intr_info[] = {
1153 { ERR_CPL_EXCEED_IQE_SIZE,
1154 "SGE received CPL exceeding IQE size", -1, 1 },
1155 { ERR_INVALID_CIDX_INC,
1156 "SGE GTS CIDX increment too large", -1, 0 },
1157 { ERR_CPL_OPCODE_0, "SGE received 0-length CPL", -1, 0 },
1158 { DBFIFO_LP_INT, NULL, -1, 0, t4_db_full },
1159 { DBFIFO_HP_INT, NULL, -1, 0, t4_db_full },
1160 { ERR_DROPPED_DB, NULL, -1, 0, t4_db_dropped },
1161 { ERR_DATA_CPL_ON_HIGH_QID1 | ERR_DATA_CPL_ON_HIGH_QID0,
1162 "SGE IQID > 1023 received CPL for FL", -1, 0 },
1163 { ERR_BAD_DB_PIDX3, "SGE DBP 3 pidx increment too large", -1,
1165 { ERR_BAD_DB_PIDX2, "SGE DBP 2 pidx increment too large", -1,
1167 { ERR_BAD_DB_PIDX1, "SGE DBP 1 pidx increment too large", -1,
1169 { ERR_BAD_DB_PIDX0, "SGE DBP 0 pidx increment too large", -1,
1171 { ERR_ING_CTXT_PRIO,
1172 "SGE too many priority ingress contexts", -1, 0 },
1173 { ERR_EGR_CTXT_PRIO,
1174 "SGE too many priority egress contexts", -1, 0 },
1175 { INGRESS_SIZE_ERR, "SGE illegal ingress QID", -1, 0 },
1176 { EGRESS_SIZE_ERR, "SGE illegal egress QID", -1, 0 },
1180 v = (u64)t4_read_reg(adapter, SGE_INT_CAUSE1) |
1181 ((u64)t4_read_reg(adapter, SGE_INT_CAUSE2) << 32);
1183 dev_alert(adapter->pdev_dev, "SGE parity error (%#llx)\n",
1184 (unsigned long long)v);
1185 t4_write_reg(adapter, SGE_INT_CAUSE1, v);
1186 t4_write_reg(adapter, SGE_INT_CAUSE2, v >> 32);
1189 if (t4_handle_intr_status(adapter, SGE_INT_CAUSE3, sge_intr_info) ||
1191 t4_fatal_err(adapter);
1195 * CIM interrupt handler.
1197 static void cim_intr_handler(struct adapter *adapter)
1199 static const struct intr_info cim_intr_info[] = {
1200 { PREFDROPINT, "CIM control register prefetch drop", -1, 1 },
1201 { OBQPARERR, "CIM OBQ parity error", -1, 1 },
1202 { IBQPARERR, "CIM IBQ parity error", -1, 1 },
1203 { MBUPPARERR, "CIM mailbox uP parity error", -1, 1 },
1204 { MBHOSTPARERR, "CIM mailbox host parity error", -1, 1 },
1205 { TIEQINPARERRINT, "CIM TIEQ outgoing parity error", -1, 1 },
1206 { TIEQOUTPARERRINT, "CIM TIEQ incoming parity error", -1, 1 },
1209 static const struct intr_info cim_upintr_info[] = {
1210 { RSVDSPACEINT, "CIM reserved space access", -1, 1 },
1211 { ILLTRANSINT, "CIM illegal transaction", -1, 1 },
1212 { ILLWRINT, "CIM illegal write", -1, 1 },
1213 { ILLRDINT, "CIM illegal read", -1, 1 },
1214 { ILLRDBEINT, "CIM illegal read BE", -1, 1 },
1215 { ILLWRBEINT, "CIM illegal write BE", -1, 1 },
1216 { SGLRDBOOTINT, "CIM single read from boot space", -1, 1 },
1217 { SGLWRBOOTINT, "CIM single write to boot space", -1, 1 },
1218 { BLKWRBOOTINT, "CIM block write to boot space", -1, 1 },
1219 { SGLRDFLASHINT, "CIM single read from flash space", -1, 1 },
1220 { SGLWRFLASHINT, "CIM single write to flash space", -1, 1 },
1221 { BLKWRFLASHINT, "CIM block write to flash space", -1, 1 },
1222 { SGLRDEEPROMINT, "CIM single EEPROM read", -1, 1 },
1223 { SGLWREEPROMINT, "CIM single EEPROM write", -1, 1 },
1224 { BLKRDEEPROMINT, "CIM block EEPROM read", -1, 1 },
1225 { BLKWREEPROMINT, "CIM block EEPROM write", -1, 1 },
1226 { SGLRDCTLINT , "CIM single read from CTL space", -1, 1 },
1227 { SGLWRCTLINT , "CIM single write to CTL space", -1, 1 },
1228 { BLKRDCTLINT , "CIM block read from CTL space", -1, 1 },
1229 { BLKWRCTLINT , "CIM block write to CTL space", -1, 1 },
1230 { SGLRDPLINT , "CIM single read from PL space", -1, 1 },
1231 { SGLWRPLINT , "CIM single write to PL space", -1, 1 },
1232 { BLKRDPLINT , "CIM block read from PL space", -1, 1 },
1233 { BLKWRPLINT , "CIM block write to PL space", -1, 1 },
1234 { REQOVRLOOKUPINT , "CIM request FIFO overwrite", -1, 1 },
1235 { RSPOVRLOOKUPINT , "CIM response FIFO overwrite", -1, 1 },
1236 { TIMEOUTINT , "CIM PIF timeout", -1, 1 },
1237 { TIMEOUTMAINT , "CIM PIF MA timeout", -1, 1 },
1243 fat = t4_handle_intr_status(adapter, CIM_HOST_INT_CAUSE,
1245 t4_handle_intr_status(adapter, CIM_HOST_UPACC_INT_CAUSE,
1248 t4_fatal_err(adapter);
1252 * ULP RX interrupt handler.
1254 static void ulprx_intr_handler(struct adapter *adapter)
1256 static const struct intr_info ulprx_intr_info[] = {
1257 { 0x1800000, "ULPRX context error", -1, 1 },
1258 { 0x7fffff, "ULPRX parity error", -1, 1 },
1262 if (t4_handle_intr_status(adapter, ULP_RX_INT_CAUSE, ulprx_intr_info))
1263 t4_fatal_err(adapter);
1267 * ULP TX interrupt handler.
1269 static void ulptx_intr_handler(struct adapter *adapter)
1271 static const struct intr_info ulptx_intr_info[] = {
1272 { PBL_BOUND_ERR_CH3, "ULPTX channel 3 PBL out of bounds", -1,
1274 { PBL_BOUND_ERR_CH2, "ULPTX channel 2 PBL out of bounds", -1,
1276 { PBL_BOUND_ERR_CH1, "ULPTX channel 1 PBL out of bounds", -1,
1278 { PBL_BOUND_ERR_CH0, "ULPTX channel 0 PBL out of bounds", -1,
1280 { 0xfffffff, "ULPTX parity error", -1, 1 },
1284 if (t4_handle_intr_status(adapter, ULP_TX_INT_CAUSE, ulptx_intr_info))
1285 t4_fatal_err(adapter);
1289 * PM TX interrupt handler.
1291 static void pmtx_intr_handler(struct adapter *adapter)
1293 static const struct intr_info pmtx_intr_info[] = {
1294 { PCMD_LEN_OVFL0, "PMTX channel 0 pcmd too large", -1, 1 },
1295 { PCMD_LEN_OVFL1, "PMTX channel 1 pcmd too large", -1, 1 },
1296 { PCMD_LEN_OVFL2, "PMTX channel 2 pcmd too large", -1, 1 },
1297 { ZERO_C_CMD_ERROR, "PMTX 0-length pcmd", -1, 1 },
1298 { PMTX_FRAMING_ERROR, "PMTX framing error", -1, 1 },
1299 { OESPI_PAR_ERROR, "PMTX oespi parity error", -1, 1 },
1300 { DB_OPTIONS_PAR_ERROR, "PMTX db_options parity error", -1, 1 },
1301 { ICSPI_PAR_ERROR, "PMTX icspi parity error", -1, 1 },
1302 { C_PCMD_PAR_ERROR, "PMTX c_pcmd parity error", -1, 1},
1306 if (t4_handle_intr_status(adapter, PM_TX_INT_CAUSE, pmtx_intr_info))
1307 t4_fatal_err(adapter);
1311 * PM RX interrupt handler.
1313 static void pmrx_intr_handler(struct adapter *adapter)
1315 static const struct intr_info pmrx_intr_info[] = {
1316 { ZERO_E_CMD_ERROR, "PMRX 0-length pcmd", -1, 1 },
1317 { PMRX_FRAMING_ERROR, "PMRX framing error", -1, 1 },
1318 { OCSPI_PAR_ERROR, "PMRX ocspi parity error", -1, 1 },
1319 { DB_OPTIONS_PAR_ERROR, "PMRX db_options parity error", -1, 1 },
1320 { IESPI_PAR_ERROR, "PMRX iespi parity error", -1, 1 },
1321 { E_PCMD_PAR_ERROR, "PMRX e_pcmd parity error", -1, 1},
1325 if (t4_handle_intr_status(adapter, PM_RX_INT_CAUSE, pmrx_intr_info))
1326 t4_fatal_err(adapter);
1330 * CPL switch interrupt handler.
1332 static void cplsw_intr_handler(struct adapter *adapter)
1334 static const struct intr_info cplsw_intr_info[] = {
1335 { CIM_OP_MAP_PERR, "CPLSW CIM op_map parity error", -1, 1 },
1336 { CIM_OVFL_ERROR, "CPLSW CIM overflow", -1, 1 },
1337 { TP_FRAMING_ERROR, "CPLSW TP framing error", -1, 1 },
1338 { SGE_FRAMING_ERROR, "CPLSW SGE framing error", -1, 1 },
1339 { CIM_FRAMING_ERROR, "CPLSW CIM framing error", -1, 1 },
1340 { ZERO_SWITCH_ERROR, "CPLSW no-switch error", -1, 1 },
1344 if (t4_handle_intr_status(adapter, CPL_INTR_CAUSE, cplsw_intr_info))
1345 t4_fatal_err(adapter);
1349 * LE interrupt handler.
1351 static void le_intr_handler(struct adapter *adap)
1353 static const struct intr_info le_intr_info[] = {
1354 { LIPMISS, "LE LIP miss", -1, 0 },
1355 { LIP0, "LE 0 LIP error", -1, 0 },
1356 { PARITYERR, "LE parity error", -1, 1 },
1357 { UNKNOWNCMD, "LE unknown command", -1, 1 },
1358 { REQQPARERR, "LE request queue parity error", -1, 1 },
1362 if (t4_handle_intr_status(adap, LE_DB_INT_CAUSE, le_intr_info))
1367 * MPS interrupt handler.
1369 static void mps_intr_handler(struct adapter *adapter)
1371 static const struct intr_info mps_rx_intr_info[] = {
1372 { 0xffffff, "MPS Rx parity error", -1, 1 },
1375 static const struct intr_info mps_tx_intr_info[] = {
1376 { TPFIFO, "MPS Tx TP FIFO parity error", -1, 1 },
1377 { NCSIFIFO, "MPS Tx NC-SI FIFO parity error", -1, 1 },
1378 { TXDATAFIFO, "MPS Tx data FIFO parity error", -1, 1 },
1379 { TXDESCFIFO, "MPS Tx desc FIFO parity error", -1, 1 },
1380 { BUBBLE, "MPS Tx underflow", -1, 1 },
1381 { SECNTERR, "MPS Tx SOP/EOP error", -1, 1 },
1382 { FRMERR, "MPS Tx framing error", -1, 1 },
1385 static const struct intr_info mps_trc_intr_info[] = {
1386 { FILTMEM, "MPS TRC filter parity error", -1, 1 },
1387 { PKTFIFO, "MPS TRC packet FIFO parity error", -1, 1 },
1388 { MISCPERR, "MPS TRC misc parity error", -1, 1 },
1391 static const struct intr_info mps_stat_sram_intr_info[] = {
1392 { 0x1fffff, "MPS statistics SRAM parity error", -1, 1 },
1395 static const struct intr_info mps_stat_tx_intr_info[] = {
1396 { 0xfffff, "MPS statistics Tx FIFO parity error", -1, 1 },
1399 static const struct intr_info mps_stat_rx_intr_info[] = {
1400 { 0xffffff, "MPS statistics Rx FIFO parity error", -1, 1 },
1403 static const struct intr_info mps_cls_intr_info[] = {
1404 { MATCHSRAM, "MPS match SRAM parity error", -1, 1 },
1405 { MATCHTCAM, "MPS match TCAM parity error", -1, 1 },
1406 { HASHSRAM, "MPS hash SRAM parity error", -1, 1 },
1412 fat = t4_handle_intr_status(adapter, MPS_RX_PERR_INT_CAUSE,
1414 t4_handle_intr_status(adapter, MPS_TX_INT_CAUSE,
1416 t4_handle_intr_status(adapter, MPS_TRC_INT_CAUSE,
1417 mps_trc_intr_info) +
1418 t4_handle_intr_status(adapter, MPS_STAT_PERR_INT_CAUSE_SRAM,
1419 mps_stat_sram_intr_info) +
1420 t4_handle_intr_status(adapter, MPS_STAT_PERR_INT_CAUSE_TX_FIFO,
1421 mps_stat_tx_intr_info) +
1422 t4_handle_intr_status(adapter, MPS_STAT_PERR_INT_CAUSE_RX_FIFO,
1423 mps_stat_rx_intr_info) +
1424 t4_handle_intr_status(adapter, MPS_CLS_INT_CAUSE,
1427 t4_write_reg(adapter, MPS_INT_CAUSE, CLSINT | TRCINT |
1428 RXINT | TXINT | STATINT);
1429 t4_read_reg(adapter, MPS_INT_CAUSE); /* flush */
1431 t4_fatal_err(adapter);
1434 #define MEM_INT_MASK (PERR_INT_CAUSE | ECC_CE_INT_CAUSE | ECC_UE_INT_CAUSE)
1437 * EDC/MC interrupt handler.
1439 static void mem_intr_handler(struct adapter *adapter, int idx)
1441 static const char name[3][5] = { "EDC0", "EDC1", "MC" };
1443 unsigned int addr, cnt_addr, v;
1445 if (idx <= MEM_EDC1) {
1446 addr = EDC_REG(EDC_INT_CAUSE, idx);
1447 cnt_addr = EDC_REG(EDC_ECC_STATUS, idx);
1449 addr = MC_INT_CAUSE;
1450 cnt_addr = MC_ECC_STATUS;
1453 v = t4_read_reg(adapter, addr) & MEM_INT_MASK;
1454 if (v & PERR_INT_CAUSE)
1455 dev_alert(adapter->pdev_dev, "%s FIFO parity error\n",
1457 if (v & ECC_CE_INT_CAUSE) {
1458 u32 cnt = ECC_CECNT_GET(t4_read_reg(adapter, cnt_addr));
1460 t4_write_reg(adapter, cnt_addr, ECC_CECNT_MASK);
1461 if (printk_ratelimit())
1462 dev_warn(adapter->pdev_dev,
1463 "%u %s correctable ECC data error%s\n",
1464 cnt, name[idx], cnt > 1 ? "s" : "");
1466 if (v & ECC_UE_INT_CAUSE)
1467 dev_alert(adapter->pdev_dev,
1468 "%s uncorrectable ECC data error\n", name[idx]);
1470 t4_write_reg(adapter, addr, v);
1471 if (v & (PERR_INT_CAUSE | ECC_UE_INT_CAUSE))
1472 t4_fatal_err(adapter);
1476 * MA interrupt handler.
1478 static void ma_intr_handler(struct adapter *adap)
1480 u32 v, status = t4_read_reg(adap, MA_INT_CAUSE);
1482 if (status & MEM_PERR_INT_CAUSE)
1483 dev_alert(adap->pdev_dev,
1484 "MA parity error, parity status %#x\n",
1485 t4_read_reg(adap, MA_PARITY_ERROR_STATUS));
1486 if (status & MEM_WRAP_INT_CAUSE) {
1487 v = t4_read_reg(adap, MA_INT_WRAP_STATUS);
1488 dev_alert(adap->pdev_dev, "MA address wrap-around error by "
1489 "client %u to address %#x\n",
1490 MEM_WRAP_CLIENT_NUM_GET(v),
1491 MEM_WRAP_ADDRESS_GET(v) << 4);
1493 t4_write_reg(adap, MA_INT_CAUSE, status);
1498 * SMB interrupt handler.
1500 static void smb_intr_handler(struct adapter *adap)
1502 static const struct intr_info smb_intr_info[] = {
1503 { MSTTXFIFOPARINT, "SMB master Tx FIFO parity error", -1, 1 },
1504 { MSTRXFIFOPARINT, "SMB master Rx FIFO parity error", -1, 1 },
1505 { SLVFIFOPARINT, "SMB slave FIFO parity error", -1, 1 },
1509 if (t4_handle_intr_status(adap, SMB_INT_CAUSE, smb_intr_info))
1514 * NC-SI interrupt handler.
1516 static void ncsi_intr_handler(struct adapter *adap)
1518 static const struct intr_info ncsi_intr_info[] = {
1519 { CIM_DM_PRTY_ERR, "NC-SI CIM parity error", -1, 1 },
1520 { MPS_DM_PRTY_ERR, "NC-SI MPS parity error", -1, 1 },
1521 { TXFIFO_PRTY_ERR, "NC-SI Tx FIFO parity error", -1, 1 },
1522 { RXFIFO_PRTY_ERR, "NC-SI Rx FIFO parity error", -1, 1 },
1526 if (t4_handle_intr_status(adap, NCSI_INT_CAUSE, ncsi_intr_info))
1531 * XGMAC interrupt handler.
1533 static void xgmac_intr_handler(struct adapter *adap, int port)
1535 u32 v = t4_read_reg(adap, PORT_REG(port, XGMAC_PORT_INT_CAUSE));
1537 v &= TXFIFO_PRTY_ERR | RXFIFO_PRTY_ERR;
1541 if (v & TXFIFO_PRTY_ERR)
1542 dev_alert(adap->pdev_dev, "XGMAC %d Tx FIFO parity error\n",
1544 if (v & RXFIFO_PRTY_ERR)
1545 dev_alert(adap->pdev_dev, "XGMAC %d Rx FIFO parity error\n",
1547 t4_write_reg(adap, PORT_REG(port, XGMAC_PORT_INT_CAUSE), v);
1552 * PL interrupt handler.
1554 static void pl_intr_handler(struct adapter *adap)
1556 static const struct intr_info pl_intr_info[] = {
1557 { FATALPERR, "T4 fatal parity error", -1, 1 },
1558 { PERRVFID, "PL VFID_MAP parity error", -1, 1 },
1562 if (t4_handle_intr_status(adap, PL_PL_INT_CAUSE, pl_intr_info))
1566 #define PF_INTR_MASK (PFSW)
1567 #define GLBL_INTR_MASK (CIM | MPS | PL | PCIE | MC | EDC0 | \
1568 EDC1 | LE | TP | MA | PM_TX | PM_RX | ULP_RX | \
1569 CPL_SWITCH | SGE | ULP_TX)
1572 * t4_slow_intr_handler - control path interrupt handler
1573 * @adapter: the adapter
1575 * T4 interrupt handler for non-data global interrupt events, e.g., errors.
1576 * The designation 'slow' is because it involves register reads, while
1577 * data interrupts typically don't involve any MMIOs.
1579 int t4_slow_intr_handler(struct adapter *adapter)
1581 u32 cause = t4_read_reg(adapter, PL_INT_CAUSE);
1583 if (!(cause & GLBL_INTR_MASK))
1586 cim_intr_handler(adapter);
1588 mps_intr_handler(adapter);
1590 ncsi_intr_handler(adapter);
1592 pl_intr_handler(adapter);
1594 smb_intr_handler(adapter);
1596 xgmac_intr_handler(adapter, 0);
1598 xgmac_intr_handler(adapter, 1);
1599 if (cause & XGMAC_KR0)
1600 xgmac_intr_handler(adapter, 2);
1601 if (cause & XGMAC_KR1)
1602 xgmac_intr_handler(adapter, 3);
1604 pcie_intr_handler(adapter);
1606 mem_intr_handler(adapter, MEM_MC);
1608 mem_intr_handler(adapter, MEM_EDC0);
1610 mem_intr_handler(adapter, MEM_EDC1);
1612 le_intr_handler(adapter);
1614 tp_intr_handler(adapter);
1616 ma_intr_handler(adapter);
1618 pmtx_intr_handler(adapter);
1620 pmrx_intr_handler(adapter);
1622 ulprx_intr_handler(adapter);
1623 if (cause & CPL_SWITCH)
1624 cplsw_intr_handler(adapter);
1626 sge_intr_handler(adapter);
1628 ulptx_intr_handler(adapter);
1630 /* Clear the interrupts just processed for which we are the master. */
1631 t4_write_reg(adapter, PL_INT_CAUSE, cause & GLBL_INTR_MASK);
1632 (void) t4_read_reg(adapter, PL_INT_CAUSE); /* flush */
1637 * t4_intr_enable - enable interrupts
1638 * @adapter: the adapter whose interrupts should be enabled
1640 * Enable PF-specific interrupts for the calling function and the top-level
1641 * interrupt concentrator for global interrupts. Interrupts are already
1642 * enabled at each module, here we just enable the roots of the interrupt
1645 * Note: this function should be called only when the driver manages
1646 * non PF-specific interrupts from the various HW modules. Only one PCI
1647 * function at a time should be doing this.
1649 void t4_intr_enable(struct adapter *adapter)
1651 u32 pf = SOURCEPF_GET(t4_read_reg(adapter, PL_WHOAMI));
1653 t4_write_reg(adapter, SGE_INT_ENABLE3, ERR_CPL_EXCEED_IQE_SIZE |
1654 ERR_INVALID_CIDX_INC | ERR_CPL_OPCODE_0 |
1655 ERR_DROPPED_DB | ERR_DATA_CPL_ON_HIGH_QID1 |
1656 ERR_DATA_CPL_ON_HIGH_QID0 | ERR_BAD_DB_PIDX3 |
1657 ERR_BAD_DB_PIDX2 | ERR_BAD_DB_PIDX1 |
1658 ERR_BAD_DB_PIDX0 | ERR_ING_CTXT_PRIO |
1659 ERR_EGR_CTXT_PRIO | INGRESS_SIZE_ERR |
1660 DBFIFO_HP_INT | DBFIFO_LP_INT |
1662 t4_write_reg(adapter, MYPF_REG(PL_PF_INT_ENABLE), PF_INTR_MASK);
1663 t4_set_reg_field(adapter, PL_INT_MAP0, 0, 1 << pf);
1667 * t4_intr_disable - disable interrupts
1668 * @adapter: the adapter whose interrupts should be disabled
1670 * Disable interrupts. We only disable the top-level interrupt
1671 * concentrators. The caller must be a PCI function managing global
1674 void t4_intr_disable(struct adapter *adapter)
1676 u32 pf = SOURCEPF_GET(t4_read_reg(adapter, PL_WHOAMI));
1678 t4_write_reg(adapter, MYPF_REG(PL_PF_INT_ENABLE), 0);
1679 t4_set_reg_field(adapter, PL_INT_MAP0, 1 << pf, 0);
1683 * hash_mac_addr - return the hash value of a MAC address
1684 * @addr: the 48-bit Ethernet MAC address
1686 * Hashes a MAC address according to the hash function used by HW inexact
1687 * (hash) address matching.
1689 static int hash_mac_addr(const u8 *addr)
1691 u32 a = ((u32)addr[0] << 16) | ((u32)addr[1] << 8) | addr[2];
1692 u32 b = ((u32)addr[3] << 16) | ((u32)addr[4] << 8) | addr[5];
1700 * t4_config_rss_range - configure a portion of the RSS mapping table
1701 * @adapter: the adapter
1702 * @mbox: mbox to use for the FW command
1703 * @viid: virtual interface whose RSS subtable is to be written
1704 * @start: start entry in the table to write
1705 * @n: how many table entries to write
1706 * @rspq: values for the response queue lookup table
1707 * @nrspq: number of values in @rspq
1709 * Programs the selected part of the VI's RSS mapping table with the
1710 * provided values. If @nrspq < @n the supplied values are used repeatedly
1711 * until the full table range is populated.
1713 * The caller must ensure the values in @rspq are in the range allowed for
1716 int t4_config_rss_range(struct adapter *adapter, int mbox, unsigned int viid,
1717 int start, int n, const u16 *rspq, unsigned int nrspq)
1720 const u16 *rsp = rspq;
1721 const u16 *rsp_end = rspq + nrspq;
1722 struct fw_rss_ind_tbl_cmd cmd;
1724 memset(&cmd, 0, sizeof(cmd));
1725 cmd.op_to_viid = htonl(FW_CMD_OP(FW_RSS_IND_TBL_CMD) |
1726 FW_CMD_REQUEST | FW_CMD_WRITE |
1727 FW_RSS_IND_TBL_CMD_VIID(viid));
1728 cmd.retval_len16 = htonl(FW_LEN16(cmd));
1730 /* each fw_rss_ind_tbl_cmd takes up to 32 entries */
1732 int nq = min(n, 32);
1733 __be32 *qp = &cmd.iq0_to_iq2;
1735 cmd.niqid = htons(nq);
1736 cmd.startidx = htons(start);
1744 v = FW_RSS_IND_TBL_CMD_IQ0(*rsp);
1745 if (++rsp >= rsp_end)
1747 v |= FW_RSS_IND_TBL_CMD_IQ1(*rsp);
1748 if (++rsp >= rsp_end)
1750 v |= FW_RSS_IND_TBL_CMD_IQ2(*rsp);
1751 if (++rsp >= rsp_end)
1758 ret = t4_wr_mbox(adapter, mbox, &cmd, sizeof(cmd), NULL);
1766 * t4_config_glbl_rss - configure the global RSS mode
1767 * @adapter: the adapter
1768 * @mbox: mbox to use for the FW command
1769 * @mode: global RSS mode
1770 * @flags: mode-specific flags
1772 * Sets the global RSS mode.
1774 int t4_config_glbl_rss(struct adapter *adapter, int mbox, unsigned int mode,
1777 struct fw_rss_glb_config_cmd c;
1779 memset(&c, 0, sizeof(c));
1780 c.op_to_write = htonl(FW_CMD_OP(FW_RSS_GLB_CONFIG_CMD) |
1781 FW_CMD_REQUEST | FW_CMD_WRITE);
1782 c.retval_len16 = htonl(FW_LEN16(c));
1783 if (mode == FW_RSS_GLB_CONFIG_CMD_MODE_MANUAL) {
1784 c.u.manual.mode_pkd = htonl(FW_RSS_GLB_CONFIG_CMD_MODE(mode));
1785 } else if (mode == FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL) {
1786 c.u.basicvirtual.mode_pkd =
1787 htonl(FW_RSS_GLB_CONFIG_CMD_MODE(mode));
1788 c.u.basicvirtual.synmapen_to_hashtoeplitz = htonl(flags);
1791 return t4_wr_mbox(adapter, mbox, &c, sizeof(c), NULL);
1795 * t4_tp_get_tcp_stats - read TP's TCP MIB counters
1796 * @adap: the adapter
1797 * @v4: holds the TCP/IP counter values
1798 * @v6: holds the TCP/IPv6 counter values
1800 * Returns the values of TP's TCP/IP and TCP/IPv6 MIB counters.
1801 * Either @v4 or @v6 may be %NULL to skip the corresponding stats.
1803 void t4_tp_get_tcp_stats(struct adapter *adap, struct tp_tcp_stats *v4,
1804 struct tp_tcp_stats *v6)
1806 u32 val[TP_MIB_TCP_RXT_SEG_LO - TP_MIB_TCP_OUT_RST + 1];
1808 #define STAT_IDX(x) ((TP_MIB_TCP_##x) - TP_MIB_TCP_OUT_RST)
1809 #define STAT(x) val[STAT_IDX(x)]
1810 #define STAT64(x) (((u64)STAT(x##_HI) << 32) | STAT(x##_LO))
1813 t4_read_indirect(adap, TP_MIB_INDEX, TP_MIB_DATA, val,
1814 ARRAY_SIZE(val), TP_MIB_TCP_OUT_RST);
1815 v4->tcpOutRsts = STAT(OUT_RST);
1816 v4->tcpInSegs = STAT64(IN_SEG);
1817 v4->tcpOutSegs = STAT64(OUT_SEG);
1818 v4->tcpRetransSegs = STAT64(RXT_SEG);
1821 t4_read_indirect(adap, TP_MIB_INDEX, TP_MIB_DATA, val,
1822 ARRAY_SIZE(val), TP_MIB_TCP_V6OUT_RST);
1823 v6->tcpOutRsts = STAT(OUT_RST);
1824 v6->tcpInSegs = STAT64(IN_SEG);
1825 v6->tcpOutSegs = STAT64(OUT_SEG);
1826 v6->tcpRetransSegs = STAT64(RXT_SEG);
1834 * t4_read_mtu_tbl - returns the values in the HW path MTU table
1835 * @adap: the adapter
1836 * @mtus: where to store the MTU values
1837 * @mtu_log: where to store the MTU base-2 log (may be %NULL)
1839 * Reads the HW path MTU table.
1841 void t4_read_mtu_tbl(struct adapter *adap, u16 *mtus, u8 *mtu_log)
1846 for (i = 0; i < NMTUS; ++i) {
1847 t4_write_reg(adap, TP_MTU_TABLE,
1848 MTUINDEX(0xff) | MTUVALUE(i));
1849 v = t4_read_reg(adap, TP_MTU_TABLE);
1850 mtus[i] = MTUVALUE_GET(v);
1852 mtu_log[i] = MTUWIDTH_GET(v);
1857 * init_cong_ctrl - initialize congestion control parameters
1858 * @a: the alpha values for congestion control
1859 * @b: the beta values for congestion control
1861 * Initialize the congestion control parameters.
1863 static void __devinit init_cong_ctrl(unsigned short *a, unsigned short *b)
1865 a[0] = a[1] = a[2] = a[3] = a[4] = a[5] = a[6] = a[7] = a[8] = 1;
1890 b[0] = b[1] = b[2] = b[3] = b[4] = b[5] = b[6] = b[7] = b[8] = 0;
1893 b[13] = b[14] = b[15] = b[16] = 3;
1894 b[17] = b[18] = b[19] = b[20] = b[21] = 4;
1895 b[22] = b[23] = b[24] = b[25] = b[26] = b[27] = 5;
1900 /* The minimum additive increment value for the congestion control table */
1901 #define CC_MIN_INCR 2U
1904 * t4_load_mtus - write the MTU and congestion control HW tables
1905 * @adap: the adapter
1906 * @mtus: the values for the MTU table
1907 * @alpha: the values for the congestion control alpha parameter
1908 * @beta: the values for the congestion control beta parameter
1910 * Write the HW MTU table with the supplied MTUs and the high-speed
1911 * congestion control table with the supplied alpha, beta, and MTUs.
1912 * We write the two tables together because the additive increments
1913 * depend on the MTUs.
1915 void t4_load_mtus(struct adapter *adap, const unsigned short *mtus,
1916 const unsigned short *alpha, const unsigned short *beta)
1918 static const unsigned int avg_pkts[NCCTRL_WIN] = {
1919 2, 6, 10, 14, 20, 28, 40, 56, 80, 112, 160, 224, 320, 448, 640,
1920 896, 1281, 1792, 2560, 3584, 5120, 7168, 10240, 14336, 20480,
1921 28672, 40960, 57344, 81920, 114688, 163840, 229376
1926 for (i = 0; i < NMTUS; ++i) {
1927 unsigned int mtu = mtus[i];
1928 unsigned int log2 = fls(mtu);
1930 if (!(mtu & ((1 << log2) >> 2))) /* round */
1932 t4_write_reg(adap, TP_MTU_TABLE, MTUINDEX(i) |
1933 MTUWIDTH(log2) | MTUVALUE(mtu));
1935 for (w = 0; w < NCCTRL_WIN; ++w) {
1938 inc = max(((mtu - 40) * alpha[w]) / avg_pkts[w],
1941 t4_write_reg(adap, TP_CCTRL_TABLE, (i << 21) |
1942 (w << 16) | (beta[w] << 13) | inc);
1948 * get_mps_bg_map - return the buffer groups associated with a port
1949 * @adap: the adapter
1950 * @idx: the port index
1952 * Returns a bitmap indicating which MPS buffer groups are associated
1953 * with the given port. Bit i is set if buffer group i is used by the
1956 static unsigned int get_mps_bg_map(struct adapter *adap, int idx)
1958 u32 n = NUMPORTS_GET(t4_read_reg(adap, MPS_CMN_CTL));
1961 return idx == 0 ? 0xf : 0;
1963 return idx < 2 ? (3 << (2 * idx)) : 0;
1968 * t4_get_port_stats - collect port statistics
1969 * @adap: the adapter
1970 * @idx: the port index
1971 * @p: the stats structure to fill
1973 * Collect statistics related to the given port from HW.
1975 void t4_get_port_stats(struct adapter *adap, int idx, struct port_stats *p)
1977 u32 bgmap = get_mps_bg_map(adap, idx);
1979 #define GET_STAT(name) \
1980 t4_read_reg64(adap, PORT_REG(idx, MPS_PORT_STAT_##name##_L))
1981 #define GET_STAT_COM(name) t4_read_reg64(adap, MPS_STAT_##name##_L)
1983 p->tx_octets = GET_STAT(TX_PORT_BYTES);
1984 p->tx_frames = GET_STAT(TX_PORT_FRAMES);
1985 p->tx_bcast_frames = GET_STAT(TX_PORT_BCAST);
1986 p->tx_mcast_frames = GET_STAT(TX_PORT_MCAST);
1987 p->tx_ucast_frames = GET_STAT(TX_PORT_UCAST);
1988 p->tx_error_frames = GET_STAT(TX_PORT_ERROR);
1989 p->tx_frames_64 = GET_STAT(TX_PORT_64B);
1990 p->tx_frames_65_127 = GET_STAT(TX_PORT_65B_127B);
1991 p->tx_frames_128_255 = GET_STAT(TX_PORT_128B_255B);
1992 p->tx_frames_256_511 = GET_STAT(TX_PORT_256B_511B);
1993 p->tx_frames_512_1023 = GET_STAT(TX_PORT_512B_1023B);
1994 p->tx_frames_1024_1518 = GET_STAT(TX_PORT_1024B_1518B);
1995 p->tx_frames_1519_max = GET_STAT(TX_PORT_1519B_MAX);
1996 p->tx_drop = GET_STAT(TX_PORT_DROP);
1997 p->tx_pause = GET_STAT(TX_PORT_PAUSE);
1998 p->tx_ppp0 = GET_STAT(TX_PORT_PPP0);
1999 p->tx_ppp1 = GET_STAT(TX_PORT_PPP1);
2000 p->tx_ppp2 = GET_STAT(TX_PORT_PPP2);
2001 p->tx_ppp3 = GET_STAT(TX_PORT_PPP3);
2002 p->tx_ppp4 = GET_STAT(TX_PORT_PPP4);
2003 p->tx_ppp5 = GET_STAT(TX_PORT_PPP5);
2004 p->tx_ppp6 = GET_STAT(TX_PORT_PPP6);
2005 p->tx_ppp7 = GET_STAT(TX_PORT_PPP7);
2007 p->rx_octets = GET_STAT(RX_PORT_BYTES);
2008 p->rx_frames = GET_STAT(RX_PORT_FRAMES);
2009 p->rx_bcast_frames = GET_STAT(RX_PORT_BCAST);
2010 p->rx_mcast_frames = GET_STAT(RX_PORT_MCAST);
2011 p->rx_ucast_frames = GET_STAT(RX_PORT_UCAST);
2012 p->rx_too_long = GET_STAT(RX_PORT_MTU_ERROR);
2013 p->rx_jabber = GET_STAT(RX_PORT_MTU_CRC_ERROR);
2014 p->rx_fcs_err = GET_STAT(RX_PORT_CRC_ERROR);
2015 p->rx_len_err = GET_STAT(RX_PORT_LEN_ERROR);
2016 p->rx_symbol_err = GET_STAT(RX_PORT_SYM_ERROR);
2017 p->rx_runt = GET_STAT(RX_PORT_LESS_64B);
2018 p->rx_frames_64 = GET_STAT(RX_PORT_64B);
2019 p->rx_frames_65_127 = GET_STAT(RX_PORT_65B_127B);
2020 p->rx_frames_128_255 = GET_STAT(RX_PORT_128B_255B);
2021 p->rx_frames_256_511 = GET_STAT(RX_PORT_256B_511B);
2022 p->rx_frames_512_1023 = GET_STAT(RX_PORT_512B_1023B);
2023 p->rx_frames_1024_1518 = GET_STAT(RX_PORT_1024B_1518B);
2024 p->rx_frames_1519_max = GET_STAT(RX_PORT_1519B_MAX);
2025 p->rx_pause = GET_STAT(RX_PORT_PAUSE);
2026 p->rx_ppp0 = GET_STAT(RX_PORT_PPP0);
2027 p->rx_ppp1 = GET_STAT(RX_PORT_PPP1);
2028 p->rx_ppp2 = GET_STAT(RX_PORT_PPP2);
2029 p->rx_ppp3 = GET_STAT(RX_PORT_PPP3);
2030 p->rx_ppp4 = GET_STAT(RX_PORT_PPP4);
2031 p->rx_ppp5 = GET_STAT(RX_PORT_PPP5);
2032 p->rx_ppp6 = GET_STAT(RX_PORT_PPP6);
2033 p->rx_ppp7 = GET_STAT(RX_PORT_PPP7);
2035 p->rx_ovflow0 = (bgmap & 1) ? GET_STAT_COM(RX_BG_0_MAC_DROP_FRAME) : 0;
2036 p->rx_ovflow1 = (bgmap & 2) ? GET_STAT_COM(RX_BG_1_MAC_DROP_FRAME) : 0;
2037 p->rx_ovflow2 = (bgmap & 4) ? GET_STAT_COM(RX_BG_2_MAC_DROP_FRAME) : 0;
2038 p->rx_ovflow3 = (bgmap & 8) ? GET_STAT_COM(RX_BG_3_MAC_DROP_FRAME) : 0;
2039 p->rx_trunc0 = (bgmap & 1) ? GET_STAT_COM(RX_BG_0_MAC_TRUNC_FRAME) : 0;
2040 p->rx_trunc1 = (bgmap & 2) ? GET_STAT_COM(RX_BG_1_MAC_TRUNC_FRAME) : 0;
2041 p->rx_trunc2 = (bgmap & 4) ? GET_STAT_COM(RX_BG_2_MAC_TRUNC_FRAME) : 0;
2042 p->rx_trunc3 = (bgmap & 8) ? GET_STAT_COM(RX_BG_3_MAC_TRUNC_FRAME) : 0;
2049 * t4_wol_magic_enable - enable/disable magic packet WoL
2050 * @adap: the adapter
2051 * @port: the physical port index
2052 * @addr: MAC address expected in magic packets, %NULL to disable
2054 * Enables/disables magic packet wake-on-LAN for the selected port.
2056 void t4_wol_magic_enable(struct adapter *adap, unsigned int port,
2060 t4_write_reg(adap, PORT_REG(port, XGMAC_PORT_MAGIC_MACID_LO),
2061 (addr[2] << 24) | (addr[3] << 16) |
2062 (addr[4] << 8) | addr[5]);
2063 t4_write_reg(adap, PORT_REG(port, XGMAC_PORT_MAGIC_MACID_HI),
2064 (addr[0] << 8) | addr[1]);
2066 t4_set_reg_field(adap, PORT_REG(port, XGMAC_PORT_CFG2), MAGICEN,
2067 addr ? MAGICEN : 0);
2071 * t4_wol_pat_enable - enable/disable pattern-based WoL
2072 * @adap: the adapter
2073 * @port: the physical port index
2074 * @map: bitmap of which HW pattern filters to set
2075 * @mask0: byte mask for bytes 0-63 of a packet
2076 * @mask1: byte mask for bytes 64-127 of a packet
2077 * @crc: Ethernet CRC for selected bytes
2078 * @enable: enable/disable switch
2080 * Sets the pattern filters indicated in @map to mask out the bytes
2081 * specified in @mask0/@mask1 in received packets and compare the CRC of
2082 * the resulting packet against @crc. If @enable is %true pattern-based
2083 * WoL is enabled, otherwise disabled.
2085 int t4_wol_pat_enable(struct adapter *adap, unsigned int port, unsigned int map,
2086 u64 mask0, u64 mask1, unsigned int crc, bool enable)
2091 t4_set_reg_field(adap, PORT_REG(port, XGMAC_PORT_CFG2),
2098 #define EPIO_REG(name) PORT_REG(port, XGMAC_PORT_EPIO_##name)
2100 t4_write_reg(adap, EPIO_REG(DATA1), mask0 >> 32);
2101 t4_write_reg(adap, EPIO_REG(DATA2), mask1);
2102 t4_write_reg(adap, EPIO_REG(DATA3), mask1 >> 32);
2104 for (i = 0; i < NWOL_PAT; i++, map >>= 1) {
2108 /* write byte masks */
2109 t4_write_reg(adap, EPIO_REG(DATA0), mask0);
2110 t4_write_reg(adap, EPIO_REG(OP), ADDRESS(i) | EPIOWR);
2111 t4_read_reg(adap, EPIO_REG(OP)); /* flush */
2112 if (t4_read_reg(adap, EPIO_REG(OP)) & BUSY)
2116 t4_write_reg(adap, EPIO_REG(DATA0), crc);
2117 t4_write_reg(adap, EPIO_REG(OP), ADDRESS(i + 32) | EPIOWR);
2118 t4_read_reg(adap, EPIO_REG(OP)); /* flush */
2119 if (t4_read_reg(adap, EPIO_REG(OP)) & BUSY)
2124 t4_set_reg_field(adap, PORT_REG(port, XGMAC_PORT_CFG2), 0, PATEN);
2128 #define INIT_CMD(var, cmd, rd_wr) do { \
2129 (var).op_to_write = htonl(FW_CMD_OP(FW_##cmd##_CMD) | \
2130 FW_CMD_REQUEST | FW_CMD_##rd_wr); \
2131 (var).retval_len16 = htonl(FW_LEN16(var)); \
2134 int t4_fwaddrspace_write(struct adapter *adap, unsigned int mbox,
2137 struct fw_ldst_cmd c;
2139 memset(&c, 0, sizeof(c));
2140 c.op_to_addrspace = htonl(V_FW_CMD_OP(FW_LDST_CMD) | F_FW_CMD_REQUEST |
2142 V_FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_FIRMWARE));
2143 c.cycles_to_len16 = htonl(FW_LEN16(c));
2144 c.u.addrval.addr = htonl(addr);
2145 c.u.addrval.val = htonl(val);
2147 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
2151 * t4_mem_win_read_len - read memory through PCIE memory window
2152 * @adap: the adapter
2153 * @addr: address of first byte requested aligned on 32b.
2154 * @data: len bytes to hold the data read
2155 * @len: amount of data to read from window. Must be <=
2156 * MEMWIN0_APERATURE after adjusting for 16B alignment
2157 * requirements of the the memory window.
2159 * Read len bytes of data from MC starting at @addr.
2161 int t4_mem_win_read_len(struct adapter *adap, u32 addr, __be32 *data, int len)
2167 * Align on a 16B boundary.
2170 if ((addr & 3) || (len + off) > MEMWIN0_APERTURE)
2173 t4_write_reg(adap, PCIE_MEM_ACCESS_OFFSET, addr & ~15);
2174 t4_read_reg(adap, PCIE_MEM_ACCESS_OFFSET);
2176 for (i = 0; i < len; i += 4)
2177 *data++ = t4_read_reg(adap, (MEMWIN0_BASE + off + i));
2183 * t4_mdio_rd - read a PHY register through MDIO
2184 * @adap: the adapter
2185 * @mbox: mailbox to use for the FW command
2186 * @phy_addr: the PHY address
2187 * @mmd: the PHY MMD to access (0 for clause 22 PHYs)
2188 * @reg: the register to read
2189 * @valp: where to store the value
2191 * Issues a FW command through the given mailbox to read a PHY register.
2193 int t4_mdio_rd(struct adapter *adap, unsigned int mbox, unsigned int phy_addr,
2194 unsigned int mmd, unsigned int reg, u16 *valp)
2197 struct fw_ldst_cmd c;
2199 memset(&c, 0, sizeof(c));
2200 c.op_to_addrspace = htonl(FW_CMD_OP(FW_LDST_CMD) | FW_CMD_REQUEST |
2201 FW_CMD_READ | FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_MDIO));
2202 c.cycles_to_len16 = htonl(FW_LEN16(c));
2203 c.u.mdio.paddr_mmd = htons(FW_LDST_CMD_PADDR(phy_addr) |
2204 FW_LDST_CMD_MMD(mmd));
2205 c.u.mdio.raddr = htons(reg);
2207 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
2209 *valp = ntohs(c.u.mdio.rval);
2214 * t4_mdio_wr - write a PHY register through MDIO
2215 * @adap: the adapter
2216 * @mbox: mailbox to use for the FW command
2217 * @phy_addr: the PHY address
2218 * @mmd: the PHY MMD to access (0 for clause 22 PHYs)
2219 * @reg: the register to write
2220 * @valp: value to write
2222 * Issues a FW command through the given mailbox to write a PHY register.
2224 int t4_mdio_wr(struct adapter *adap, unsigned int mbox, unsigned int phy_addr,
2225 unsigned int mmd, unsigned int reg, u16 val)
2227 struct fw_ldst_cmd c;
2229 memset(&c, 0, sizeof(c));
2230 c.op_to_addrspace = htonl(FW_CMD_OP(FW_LDST_CMD) | FW_CMD_REQUEST |
2231 FW_CMD_WRITE | FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_MDIO));
2232 c.cycles_to_len16 = htonl(FW_LEN16(c));
2233 c.u.mdio.paddr_mmd = htons(FW_LDST_CMD_PADDR(phy_addr) |
2234 FW_LDST_CMD_MMD(mmd));
2235 c.u.mdio.raddr = htons(reg);
2236 c.u.mdio.rval = htons(val);
2238 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
2242 * t4_fw_hello - establish communication with FW
2243 * @adap: the adapter
2244 * @mbox: mailbox to use for the FW command
2245 * @evt_mbox: mailbox to receive async FW events
2246 * @master: specifies the caller's willingness to be the device master
2247 * @state: returns the current device state
2249 * Issues a command to establish communication with FW.
2251 int t4_fw_hello(struct adapter *adap, unsigned int mbox, unsigned int evt_mbox,
2252 enum dev_master master, enum dev_state *state)
2255 struct fw_hello_cmd c;
2257 INIT_CMD(c, HELLO, WRITE);
2258 c.err_to_mbasyncnot = htonl(
2259 FW_HELLO_CMD_MASTERDIS(master == MASTER_CANT) |
2260 FW_HELLO_CMD_MASTERFORCE(master == MASTER_MUST) |
2261 FW_HELLO_CMD_MBMASTER(master == MASTER_MUST ? mbox : 0xff) |
2262 FW_HELLO_CMD_MBASYNCNOT(evt_mbox));
2264 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
2265 if (ret == 0 && state) {
2266 u32 v = ntohl(c.err_to_mbasyncnot);
2267 if (v & FW_HELLO_CMD_INIT)
2268 *state = DEV_STATE_INIT;
2269 else if (v & FW_HELLO_CMD_ERR)
2270 *state = DEV_STATE_ERR;
2272 *state = DEV_STATE_UNINIT;
2278 * t4_fw_bye - end communication with FW
2279 * @adap: the adapter
2280 * @mbox: mailbox to use for the FW command
2282 * Issues a command to terminate communication with FW.
2284 int t4_fw_bye(struct adapter *adap, unsigned int mbox)
2286 struct fw_bye_cmd c;
2288 INIT_CMD(c, BYE, WRITE);
2289 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
2293 * t4_init_cmd - ask FW to initialize the device
2294 * @adap: the adapter
2295 * @mbox: mailbox to use for the FW command
2297 * Issues a command to FW to partially initialize the device. This
2298 * performs initialization that generally doesn't depend on user input.
2300 int t4_early_init(struct adapter *adap, unsigned int mbox)
2302 struct fw_initialize_cmd c;
2304 INIT_CMD(c, INITIALIZE, WRITE);
2305 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
2309 * t4_fw_reset - issue a reset to FW
2310 * @adap: the adapter
2311 * @mbox: mailbox to use for the FW command
2312 * @reset: specifies the type of reset to perform
2314 * Issues a reset command of the specified type to FW.
2316 int t4_fw_reset(struct adapter *adap, unsigned int mbox, int reset)
2318 struct fw_reset_cmd c;
2320 INIT_CMD(c, RESET, WRITE);
2321 c.val = htonl(reset);
2322 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
2326 * t4_query_params - query FW or device parameters
2327 * @adap: the adapter
2328 * @mbox: mailbox to use for the FW command
2331 * @nparams: the number of parameters
2332 * @params: the parameter names
2333 * @val: the parameter values
2335 * Reads the value of FW or device parameters. Up to 7 parameters can be
2338 int t4_query_params(struct adapter *adap, unsigned int mbox, unsigned int pf,
2339 unsigned int vf, unsigned int nparams, const u32 *params,
2343 struct fw_params_cmd c;
2344 __be32 *p = &c.param[0].mnem;
2349 memset(&c, 0, sizeof(c));
2350 c.op_to_vfn = htonl(FW_CMD_OP(FW_PARAMS_CMD) | FW_CMD_REQUEST |
2351 FW_CMD_READ | FW_PARAMS_CMD_PFN(pf) |
2352 FW_PARAMS_CMD_VFN(vf));
2353 c.retval_len16 = htonl(FW_LEN16(c));
2354 for (i = 0; i < nparams; i++, p += 2)
2355 *p = htonl(*params++);
2357 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
2359 for (i = 0, p = &c.param[0].val; i < nparams; i++, p += 2)
2365 * t4_set_params - sets FW or device parameters
2366 * @adap: the adapter
2367 * @mbox: mailbox to use for the FW command
2370 * @nparams: the number of parameters
2371 * @params: the parameter names
2372 * @val: the parameter values
2374 * Sets the value of FW or device parameters. Up to 7 parameters can be
2375 * specified at once.
2377 int t4_set_params(struct adapter *adap, unsigned int mbox, unsigned int pf,
2378 unsigned int vf, unsigned int nparams, const u32 *params,
2381 struct fw_params_cmd c;
2382 __be32 *p = &c.param[0].mnem;
2387 memset(&c, 0, sizeof(c));
2388 c.op_to_vfn = htonl(FW_CMD_OP(FW_PARAMS_CMD) | FW_CMD_REQUEST |
2389 FW_CMD_WRITE | FW_PARAMS_CMD_PFN(pf) |
2390 FW_PARAMS_CMD_VFN(vf));
2391 c.retval_len16 = htonl(FW_LEN16(c));
2393 *p++ = htonl(*params++);
2394 *p++ = htonl(*val++);
2397 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
2401 * t4_cfg_pfvf - configure PF/VF resource limits
2402 * @adap: the adapter
2403 * @mbox: mailbox to use for the FW command
2404 * @pf: the PF being configured
2405 * @vf: the VF being configured
2406 * @txq: the max number of egress queues
2407 * @txq_eth_ctrl: the max number of egress Ethernet or control queues
2408 * @rxqi: the max number of interrupt-capable ingress queues
2409 * @rxq: the max number of interruptless ingress queues
2410 * @tc: the PCI traffic class
2411 * @vi: the max number of virtual interfaces
2412 * @cmask: the channel access rights mask for the PF/VF
2413 * @pmask: the port access rights mask for the PF/VF
2414 * @nexact: the maximum number of exact MPS filters
2415 * @rcaps: read capabilities
2416 * @wxcaps: write/execute capabilities
2418 * Configures resource limits and capabilities for a physical or virtual
2421 int t4_cfg_pfvf(struct adapter *adap, unsigned int mbox, unsigned int pf,
2422 unsigned int vf, unsigned int txq, unsigned int txq_eth_ctrl,
2423 unsigned int rxqi, unsigned int rxq, unsigned int tc,
2424 unsigned int vi, unsigned int cmask, unsigned int pmask,
2425 unsigned int nexact, unsigned int rcaps, unsigned int wxcaps)
2427 struct fw_pfvf_cmd c;
2429 memset(&c, 0, sizeof(c));
2430 c.op_to_vfn = htonl(FW_CMD_OP(FW_PFVF_CMD) | FW_CMD_REQUEST |
2431 FW_CMD_WRITE | FW_PFVF_CMD_PFN(pf) |
2432 FW_PFVF_CMD_VFN(vf));
2433 c.retval_len16 = htonl(FW_LEN16(c));
2434 c.niqflint_niq = htonl(FW_PFVF_CMD_NIQFLINT(rxqi) |
2435 FW_PFVF_CMD_NIQ(rxq));
2436 c.type_to_neq = htonl(FW_PFVF_CMD_CMASK(cmask) |
2437 FW_PFVF_CMD_PMASK(pmask) |
2438 FW_PFVF_CMD_NEQ(txq));
2439 c.tc_to_nexactf = htonl(FW_PFVF_CMD_TC(tc) | FW_PFVF_CMD_NVI(vi) |
2440 FW_PFVF_CMD_NEXACTF(nexact));
2441 c.r_caps_to_nethctrl = htonl(FW_PFVF_CMD_R_CAPS(rcaps) |
2442 FW_PFVF_CMD_WX_CAPS(wxcaps) |
2443 FW_PFVF_CMD_NETHCTRL(txq_eth_ctrl));
2444 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
2448 * t4_alloc_vi - allocate a virtual interface
2449 * @adap: the adapter
2450 * @mbox: mailbox to use for the FW command
2451 * @port: physical port associated with the VI
2452 * @pf: the PF owning the VI
2453 * @vf: the VF owning the VI
2454 * @nmac: number of MAC addresses needed (1 to 5)
2455 * @mac: the MAC addresses of the VI
2456 * @rss_size: size of RSS table slice associated with this VI
2458 * Allocates a virtual interface for the given physical port. If @mac is
2459 * not %NULL it contains the MAC addresses of the VI as assigned by FW.
2460 * @mac should be large enough to hold @nmac Ethernet addresses, they are
2461 * stored consecutively so the space needed is @nmac * 6 bytes.
2462 * Returns a negative error number or the non-negative VI id.
2464 int t4_alloc_vi(struct adapter *adap, unsigned int mbox, unsigned int port,
2465 unsigned int pf, unsigned int vf, unsigned int nmac, u8 *mac,
2466 unsigned int *rss_size)
2471 memset(&c, 0, sizeof(c));
2472 c.op_to_vfn = htonl(FW_CMD_OP(FW_VI_CMD) | FW_CMD_REQUEST |
2473 FW_CMD_WRITE | FW_CMD_EXEC |
2474 FW_VI_CMD_PFN(pf) | FW_VI_CMD_VFN(vf));
2475 c.alloc_to_len16 = htonl(FW_VI_CMD_ALLOC | FW_LEN16(c));
2476 c.portid_pkd = FW_VI_CMD_PORTID(port);
2479 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
2484 memcpy(mac, c.mac, sizeof(c.mac));
2487 memcpy(mac + 24, c.nmac3, sizeof(c.nmac3));
2489 memcpy(mac + 18, c.nmac2, sizeof(c.nmac2));
2491 memcpy(mac + 12, c.nmac1, sizeof(c.nmac1));
2493 memcpy(mac + 6, c.nmac0, sizeof(c.nmac0));
2497 *rss_size = FW_VI_CMD_RSSSIZE_GET(ntohs(c.rsssize_pkd));
2498 return FW_VI_CMD_VIID_GET(ntohs(c.type_viid));
2502 * t4_set_rxmode - set Rx properties of a virtual interface
2503 * @adap: the adapter
2504 * @mbox: mailbox to use for the FW command
2506 * @mtu: the new MTU or -1
2507 * @promisc: 1 to enable promiscuous mode, 0 to disable it, -1 no change
2508 * @all_multi: 1 to enable all-multi mode, 0 to disable it, -1 no change
2509 * @bcast: 1 to enable broadcast Rx, 0 to disable it, -1 no change
2510 * @vlanex: 1 to enable HW VLAN extraction, 0 to disable it, -1 no change
2511 * @sleep_ok: if true we may sleep while awaiting command completion
2513 * Sets Rx properties of a virtual interface.
2515 int t4_set_rxmode(struct adapter *adap, unsigned int mbox, unsigned int viid,
2516 int mtu, int promisc, int all_multi, int bcast, int vlanex,
2519 struct fw_vi_rxmode_cmd c;
2521 /* convert to FW values */
2523 mtu = FW_RXMODE_MTU_NO_CHG;
2525 promisc = FW_VI_RXMODE_CMD_PROMISCEN_MASK;
2527 all_multi = FW_VI_RXMODE_CMD_ALLMULTIEN_MASK;
2529 bcast = FW_VI_RXMODE_CMD_BROADCASTEN_MASK;
2531 vlanex = FW_VI_RXMODE_CMD_VLANEXEN_MASK;
2533 memset(&c, 0, sizeof(c));
2534 c.op_to_viid = htonl(FW_CMD_OP(FW_VI_RXMODE_CMD) | FW_CMD_REQUEST |
2535 FW_CMD_WRITE | FW_VI_RXMODE_CMD_VIID(viid));
2536 c.retval_len16 = htonl(FW_LEN16(c));
2537 c.mtu_to_vlanexen = htonl(FW_VI_RXMODE_CMD_MTU(mtu) |
2538 FW_VI_RXMODE_CMD_PROMISCEN(promisc) |
2539 FW_VI_RXMODE_CMD_ALLMULTIEN(all_multi) |
2540 FW_VI_RXMODE_CMD_BROADCASTEN(bcast) |
2541 FW_VI_RXMODE_CMD_VLANEXEN(vlanex));
2542 return t4_wr_mbox_meat(adap, mbox, &c, sizeof(c), NULL, sleep_ok);
2546 * t4_alloc_mac_filt - allocates exact-match filters for MAC addresses
2547 * @adap: the adapter
2548 * @mbox: mailbox to use for the FW command
2550 * @free: if true any existing filters for this VI id are first removed
2551 * @naddr: the number of MAC addresses to allocate filters for (up to 7)
2552 * @addr: the MAC address(es)
2553 * @idx: where to store the index of each allocated filter
2554 * @hash: pointer to hash address filter bitmap
2555 * @sleep_ok: call is allowed to sleep
2557 * Allocates an exact-match filter for each of the supplied addresses and
2558 * sets it to the corresponding address. If @idx is not %NULL it should
2559 * have at least @naddr entries, each of which will be set to the index of
2560 * the filter allocated for the corresponding MAC address. If a filter
2561 * could not be allocated for an address its index is set to 0xffff.
2562 * If @hash is not %NULL addresses that fail to allocate an exact filter
2563 * are hashed and update the hash filter bitmap pointed at by @hash.
2565 * Returns a negative error number or the number of filters allocated.
2567 int t4_alloc_mac_filt(struct adapter *adap, unsigned int mbox,
2568 unsigned int viid, bool free, unsigned int naddr,
2569 const u8 **addr, u16 *idx, u64 *hash, bool sleep_ok)
2572 struct fw_vi_mac_cmd c;
2573 struct fw_vi_mac_exact *p;
2578 memset(&c, 0, sizeof(c));
2579 c.op_to_viid = htonl(FW_CMD_OP(FW_VI_MAC_CMD) | FW_CMD_REQUEST |
2580 FW_CMD_WRITE | (free ? FW_CMD_EXEC : 0) |
2581 FW_VI_MAC_CMD_VIID(viid));
2582 c.freemacs_to_len16 = htonl(FW_VI_MAC_CMD_FREEMACS(free) |
2583 FW_CMD_LEN16((naddr + 2) / 2));
2585 for (i = 0, p = c.u.exact; i < naddr; i++, p++) {
2586 p->valid_to_idx = htons(FW_VI_MAC_CMD_VALID |
2587 FW_VI_MAC_CMD_IDX(FW_VI_MAC_ADD_MAC));
2588 memcpy(p->macaddr, addr[i], sizeof(p->macaddr));
2591 ret = t4_wr_mbox_meat(adap, mbox, &c, sizeof(c), &c, sleep_ok);
2595 for (i = 0, p = c.u.exact; i < naddr; i++, p++) {
2596 u16 index = FW_VI_MAC_CMD_IDX_GET(ntohs(p->valid_to_idx));
2599 idx[i] = index >= NEXACT_MAC ? 0xffff : index;
2600 if (index < NEXACT_MAC)
2603 *hash |= (1ULL << hash_mac_addr(addr[i]));
2609 * t4_change_mac - modifies the exact-match filter for a MAC address
2610 * @adap: the adapter
2611 * @mbox: mailbox to use for the FW command
2613 * @idx: index of existing filter for old value of MAC address, or -1
2614 * @addr: the new MAC address value
2615 * @persist: whether a new MAC allocation should be persistent
2616 * @add_smt: if true also add the address to the HW SMT
2618 * Modifies an exact-match filter and sets it to the new MAC address.
2619 * Note that in general it is not possible to modify the value of a given
2620 * filter so the generic way to modify an address filter is to free the one
2621 * being used by the old address value and allocate a new filter for the
2622 * new address value. @idx can be -1 if the address is a new addition.
2624 * Returns a negative error number or the index of the filter with the new
2627 int t4_change_mac(struct adapter *adap, unsigned int mbox, unsigned int viid,
2628 int idx, const u8 *addr, bool persist, bool add_smt)
2631 struct fw_vi_mac_cmd c;
2632 struct fw_vi_mac_exact *p = c.u.exact;
2634 if (idx < 0) /* new allocation */
2635 idx = persist ? FW_VI_MAC_ADD_PERSIST_MAC : FW_VI_MAC_ADD_MAC;
2636 mode = add_smt ? FW_VI_MAC_SMT_AND_MPSTCAM : FW_VI_MAC_MPS_TCAM_ENTRY;
2638 memset(&c, 0, sizeof(c));
2639 c.op_to_viid = htonl(FW_CMD_OP(FW_VI_MAC_CMD) | FW_CMD_REQUEST |
2640 FW_CMD_WRITE | FW_VI_MAC_CMD_VIID(viid));
2641 c.freemacs_to_len16 = htonl(FW_CMD_LEN16(1));
2642 p->valid_to_idx = htons(FW_VI_MAC_CMD_VALID |
2643 FW_VI_MAC_CMD_SMAC_RESULT(mode) |
2644 FW_VI_MAC_CMD_IDX(idx));
2645 memcpy(p->macaddr, addr, sizeof(p->macaddr));
2647 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
2649 ret = FW_VI_MAC_CMD_IDX_GET(ntohs(p->valid_to_idx));
2650 if (ret >= NEXACT_MAC)
2657 * t4_set_addr_hash - program the MAC inexact-match hash filter
2658 * @adap: the adapter
2659 * @mbox: mailbox to use for the FW command
2661 * @ucast: whether the hash filter should also match unicast addresses
2662 * @vec: the value to be written to the hash filter
2663 * @sleep_ok: call is allowed to sleep
2665 * Sets the 64-bit inexact-match hash filter for a virtual interface.
2667 int t4_set_addr_hash(struct adapter *adap, unsigned int mbox, unsigned int viid,
2668 bool ucast, u64 vec, bool sleep_ok)
2670 struct fw_vi_mac_cmd c;
2672 memset(&c, 0, sizeof(c));
2673 c.op_to_viid = htonl(FW_CMD_OP(FW_VI_MAC_CMD) | FW_CMD_REQUEST |
2674 FW_CMD_WRITE | FW_VI_ENABLE_CMD_VIID(viid));
2675 c.freemacs_to_len16 = htonl(FW_VI_MAC_CMD_HASHVECEN |
2676 FW_VI_MAC_CMD_HASHUNIEN(ucast) |
2678 c.u.hash.hashvec = cpu_to_be64(vec);
2679 return t4_wr_mbox_meat(adap, mbox, &c, sizeof(c), NULL, sleep_ok);
2683 * t4_enable_vi - enable/disable a virtual interface
2684 * @adap: the adapter
2685 * @mbox: mailbox to use for the FW command
2687 * @rx_en: 1=enable Rx, 0=disable Rx
2688 * @tx_en: 1=enable Tx, 0=disable Tx
2690 * Enables/disables a virtual interface.
2692 int t4_enable_vi(struct adapter *adap, unsigned int mbox, unsigned int viid,
2693 bool rx_en, bool tx_en)
2695 struct fw_vi_enable_cmd c;
2697 memset(&c, 0, sizeof(c));
2698 c.op_to_viid = htonl(FW_CMD_OP(FW_VI_ENABLE_CMD) | FW_CMD_REQUEST |
2699 FW_CMD_EXEC | FW_VI_ENABLE_CMD_VIID(viid));
2700 c.ien_to_len16 = htonl(FW_VI_ENABLE_CMD_IEN(rx_en) |
2701 FW_VI_ENABLE_CMD_EEN(tx_en) | FW_LEN16(c));
2702 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
2706 * t4_identify_port - identify a VI's port by blinking its LED
2707 * @adap: the adapter
2708 * @mbox: mailbox to use for the FW command
2710 * @nblinks: how many times to blink LED at 2.5 Hz
2712 * Identifies a VI's port by blinking its LED.
2714 int t4_identify_port(struct adapter *adap, unsigned int mbox, unsigned int viid,
2715 unsigned int nblinks)
2717 struct fw_vi_enable_cmd c;
2719 c.op_to_viid = htonl(FW_CMD_OP(FW_VI_ENABLE_CMD) | FW_CMD_REQUEST |
2720 FW_CMD_EXEC | FW_VI_ENABLE_CMD_VIID(viid));
2721 c.ien_to_len16 = htonl(FW_VI_ENABLE_CMD_LED | FW_LEN16(c));
2722 c.blinkdur = htons(nblinks);
2723 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
2727 * t4_iq_free - free an ingress queue and its FLs
2728 * @adap: the adapter
2729 * @mbox: mailbox to use for the FW command
2730 * @pf: the PF owning the queues
2731 * @vf: the VF owning the queues
2732 * @iqtype: the ingress queue type
2733 * @iqid: ingress queue id
2734 * @fl0id: FL0 queue id or 0xffff if no attached FL0
2735 * @fl1id: FL1 queue id or 0xffff if no attached FL1
2737 * Frees an ingress queue and its associated FLs, if any.
2739 int t4_iq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
2740 unsigned int vf, unsigned int iqtype, unsigned int iqid,
2741 unsigned int fl0id, unsigned int fl1id)
2745 memset(&c, 0, sizeof(c));
2746 c.op_to_vfn = htonl(FW_CMD_OP(FW_IQ_CMD) | FW_CMD_REQUEST |
2747 FW_CMD_EXEC | FW_IQ_CMD_PFN(pf) |
2749 c.alloc_to_len16 = htonl(FW_IQ_CMD_FREE | FW_LEN16(c));
2750 c.type_to_iqandstindex = htonl(FW_IQ_CMD_TYPE(iqtype));
2751 c.iqid = htons(iqid);
2752 c.fl0id = htons(fl0id);
2753 c.fl1id = htons(fl1id);
2754 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
2758 * t4_eth_eq_free - free an Ethernet egress queue
2759 * @adap: the adapter
2760 * @mbox: mailbox to use for the FW command
2761 * @pf: the PF owning the queue
2762 * @vf: the VF owning the queue
2763 * @eqid: egress queue id
2765 * Frees an Ethernet egress queue.
2767 int t4_eth_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
2768 unsigned int vf, unsigned int eqid)
2770 struct fw_eq_eth_cmd c;
2772 memset(&c, 0, sizeof(c));
2773 c.op_to_vfn = htonl(FW_CMD_OP(FW_EQ_ETH_CMD) | FW_CMD_REQUEST |
2774 FW_CMD_EXEC | FW_EQ_ETH_CMD_PFN(pf) |
2775 FW_EQ_ETH_CMD_VFN(vf));
2776 c.alloc_to_len16 = htonl(FW_EQ_ETH_CMD_FREE | FW_LEN16(c));
2777 c.eqid_pkd = htonl(FW_EQ_ETH_CMD_EQID(eqid));
2778 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
2782 * t4_ctrl_eq_free - free a control egress queue
2783 * @adap: the adapter
2784 * @mbox: mailbox to use for the FW command
2785 * @pf: the PF owning the queue
2786 * @vf: the VF owning the queue
2787 * @eqid: egress queue id
2789 * Frees a control egress queue.
2791 int t4_ctrl_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
2792 unsigned int vf, unsigned int eqid)
2794 struct fw_eq_ctrl_cmd c;
2796 memset(&c, 0, sizeof(c));
2797 c.op_to_vfn = htonl(FW_CMD_OP(FW_EQ_CTRL_CMD) | FW_CMD_REQUEST |
2798 FW_CMD_EXEC | FW_EQ_CTRL_CMD_PFN(pf) |
2799 FW_EQ_CTRL_CMD_VFN(vf));
2800 c.alloc_to_len16 = htonl(FW_EQ_CTRL_CMD_FREE | FW_LEN16(c));
2801 c.cmpliqid_eqid = htonl(FW_EQ_CTRL_CMD_EQID(eqid));
2802 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
2806 * t4_ofld_eq_free - free an offload egress queue
2807 * @adap: the adapter
2808 * @mbox: mailbox to use for the FW command
2809 * @pf: the PF owning the queue
2810 * @vf: the VF owning the queue
2811 * @eqid: egress queue id
2813 * Frees a control egress queue.
2815 int t4_ofld_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
2816 unsigned int vf, unsigned int eqid)
2818 struct fw_eq_ofld_cmd c;
2820 memset(&c, 0, sizeof(c));
2821 c.op_to_vfn = htonl(FW_CMD_OP(FW_EQ_OFLD_CMD) | FW_CMD_REQUEST |
2822 FW_CMD_EXEC | FW_EQ_OFLD_CMD_PFN(pf) |
2823 FW_EQ_OFLD_CMD_VFN(vf));
2824 c.alloc_to_len16 = htonl(FW_EQ_OFLD_CMD_FREE | FW_LEN16(c));
2825 c.eqid_pkd = htonl(FW_EQ_OFLD_CMD_EQID(eqid));
2826 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
2830 * t4_handle_fw_rpl - process a FW reply message
2831 * @adap: the adapter
2832 * @rpl: start of the FW message
2834 * Processes a FW message, such as link state change messages.
2836 int t4_handle_fw_rpl(struct adapter *adap, const __be64 *rpl)
2838 u8 opcode = *(const u8 *)rpl;
2840 if (opcode == FW_PORT_CMD) { /* link/module state change message */
2841 int speed = 0, fc = 0;
2842 const struct fw_port_cmd *p = (void *)rpl;
2843 int chan = FW_PORT_CMD_PORTID_GET(ntohl(p->op_to_portid));
2844 int port = adap->chan_map[chan];
2845 struct port_info *pi = adap2pinfo(adap, port);
2846 struct link_config *lc = &pi->link_cfg;
2847 u32 stat = ntohl(p->u.info.lstatus_to_modtype);
2848 int link_ok = (stat & FW_PORT_CMD_LSTATUS) != 0;
2849 u32 mod = FW_PORT_CMD_MODTYPE_GET(stat);
2851 if (stat & FW_PORT_CMD_RXPAUSE)
2853 if (stat & FW_PORT_CMD_TXPAUSE)
2855 if (stat & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_100M))
2857 else if (stat & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_1G))
2859 else if (stat & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_10G))
2860 speed = SPEED_10000;
2862 if (link_ok != lc->link_ok || speed != lc->speed ||
2863 fc != lc->fc) { /* something changed */
2864 lc->link_ok = link_ok;
2867 t4_os_link_changed(adap, port, link_ok);
2869 if (mod != pi->mod_type) {
2871 t4_os_portmod_changed(adap, port);
2877 static void __devinit get_pci_mode(struct adapter *adapter,
2878 struct pci_params *p)
2881 u32 pcie_cap = pci_pcie_cap(adapter->pdev);
2884 pci_read_config_word(adapter->pdev, pcie_cap + PCI_EXP_LNKSTA,
2886 p->speed = val & PCI_EXP_LNKSTA_CLS;
2887 p->width = (val & PCI_EXP_LNKSTA_NLW) >> 4;
2892 * init_link_config - initialize a link's SW state
2893 * @lc: structure holding the link state
2894 * @caps: link capabilities
2896 * Initializes the SW state maintained for each link, including the link's
2897 * capabilities and default speed/flow-control/autonegotiation settings.
2899 static void __devinit init_link_config(struct link_config *lc,
2902 lc->supported = caps;
2903 lc->requested_speed = 0;
2905 lc->requested_fc = lc->fc = PAUSE_RX | PAUSE_TX;
2906 if (lc->supported & FW_PORT_CAP_ANEG) {
2907 lc->advertising = lc->supported & ADVERT_MASK;
2908 lc->autoneg = AUTONEG_ENABLE;
2909 lc->requested_fc |= PAUSE_AUTONEG;
2911 lc->advertising = 0;
2912 lc->autoneg = AUTONEG_DISABLE;
2916 int t4_wait_dev_ready(struct adapter *adap)
2918 if (t4_read_reg(adap, PL_WHOAMI) != 0xffffffff)
2921 return t4_read_reg(adap, PL_WHOAMI) != 0xffffffff ? 0 : -EIO;
2924 static int __devinit get_flash_params(struct adapter *adap)
2929 ret = sf1_write(adap, 1, 1, 0, SF_RD_ID);
2931 ret = sf1_read(adap, 3, 0, 1, &info);
2932 t4_write_reg(adap, SF_OP, 0); /* unlock SF */
2936 if ((info & 0xff) != 0x20) /* not a Numonix flash */
2938 info >>= 16; /* log2 of size */
2939 if (info >= 0x14 && info < 0x18)
2940 adap->params.sf_nsec = 1 << (info - 16);
2941 else if (info == 0x18)
2942 adap->params.sf_nsec = 64;
2945 adap->params.sf_size = 1 << info;
2946 adap->params.sf_fw_start =
2947 t4_read_reg(adap, CIM_BOOT_CFG) & BOOTADDR_MASK;
2952 * t4_prep_adapter - prepare SW and HW for operation
2953 * @adapter: the adapter
2954 * @reset: if true perform a HW reset
2956 * Initialize adapter SW state for the various HW modules, set initial
2957 * values for some adapter tunables, take PHYs out of reset, and
2958 * initialize the MDIO interface.
2960 int __devinit t4_prep_adapter(struct adapter *adapter)
2964 ret = t4_wait_dev_ready(adapter);
2968 get_pci_mode(adapter, &adapter->params.pci);
2969 adapter->params.rev = t4_read_reg(adapter, PL_REV);
2971 ret = get_flash_params(adapter);
2973 dev_err(adapter->pdev_dev, "error %d identifying flash\n", ret);
2977 ret = get_vpd_params(adapter, &adapter->params.vpd);
2981 init_cong_ctrl(adapter->params.a_wnd, adapter->params.b_wnd);
2984 * Default port for debugging in case we can't reach FW.
2986 adapter->params.nports = 1;
2987 adapter->params.portvec = 1;
2991 int __devinit t4_port_init(struct adapter *adap, int mbox, int pf, int vf)
2995 struct fw_port_cmd c;
2996 struct fw_rss_vi_config_cmd rvc;
2998 memset(&c, 0, sizeof(c));
2999 memset(&rvc, 0, sizeof(rvc));
3001 for_each_port(adap, i) {
3002 unsigned int rss_size;
3003 struct port_info *p = adap2pinfo(adap, i);
3005 while ((adap->params.portvec & (1 << j)) == 0)
3008 c.op_to_portid = htonl(FW_CMD_OP(FW_PORT_CMD) |
3009 FW_CMD_REQUEST | FW_CMD_READ |
3010 FW_PORT_CMD_PORTID(j));
3011 c.action_to_len16 = htonl(
3012 FW_PORT_CMD_ACTION(FW_PORT_ACTION_GET_PORT_INFO) |
3014 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
3018 ret = t4_alloc_vi(adap, mbox, j, pf, vf, 1, addr, &rss_size);
3025 p->rss_size = rss_size;
3026 memcpy(adap->port[i]->dev_addr, addr, ETH_ALEN);
3027 memcpy(adap->port[i]->perm_addr, addr, ETH_ALEN);
3028 adap->port[i]->dev_id = j;
3030 ret = ntohl(c.u.info.lstatus_to_modtype);
3031 p->mdio_addr = (ret & FW_PORT_CMD_MDIOCAP) ?
3032 FW_PORT_CMD_MDIOADDR_GET(ret) : -1;
3033 p->port_type = FW_PORT_CMD_PTYPE_GET(ret);
3034 p->mod_type = FW_PORT_MOD_TYPE_NA;
3036 rvc.op_to_viid = htonl(FW_CMD_OP(FW_RSS_VI_CONFIG_CMD) |
3037 FW_CMD_REQUEST | FW_CMD_READ |
3038 FW_RSS_VI_CONFIG_CMD_VIID(p->viid));
3039 rvc.retval_len16 = htonl(FW_LEN16(rvc));
3040 ret = t4_wr_mbox(adap, mbox, &rvc, sizeof(rvc), &rvc);
3043 p->rss_mode = ntohl(rvc.u.basicvirtual.defaultq_to_udpen);
3045 init_link_config(&p->link_cfg, ntohs(c.u.info.pcap));