4 * Copyright(c) 2014-2017 Chelsio Communications.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * * Neither the name of Chelsio Communications nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
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22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 #include <netinet/in.h>
36 #include <rte_interrupts.h>
38 #include <rte_debug.h>
40 #include <rte_atomic.h>
41 #include <rte_branch_prediction.h>
42 #include <rte_memory.h>
43 #include <rte_tailq.h>
45 #include <rte_alarm.h>
46 #include <rte_ether.h>
47 #include <rte_ethdev_driver.h>
48 #include <rte_malloc.h>
49 #include <rte_random.h>
51 #include <rte_byteorder.h>
55 #include "t4_regs_values.h"
56 #include "t4fw_interface.h"
58 static void init_link_config(struct link_config *lc, unsigned int pcaps,
62 * t4_read_mtu_tbl - returns the values in the HW path MTU table
64 * @mtus: where to store the MTU values
65 * @mtu_log: where to store the MTU base-2 log (may be %NULL)
67 * Reads the HW path MTU table.
69 void t4_read_mtu_tbl(struct adapter *adap, u16 *mtus, u8 *mtu_log)
74 for (i = 0; i < NMTUS; ++i) {
75 t4_write_reg(adap, A_TP_MTU_TABLE,
76 V_MTUINDEX(0xff) | V_MTUVALUE(i));
77 v = t4_read_reg(adap, A_TP_MTU_TABLE);
78 mtus[i] = G_MTUVALUE(v);
80 mtu_log[i] = G_MTUWIDTH(v);
85 * t4_tp_wr_bits_indirect - set/clear bits in an indirect TP register
87 * @addr: the indirect TP register address
88 * @mask: specifies the field within the register to modify
89 * @val: new value for the field
91 * Sets a field of an indirect TP register to the given value.
93 void t4_tp_wr_bits_indirect(struct adapter *adap, unsigned int addr,
94 unsigned int mask, unsigned int val)
96 t4_write_reg(adap, A_TP_PIO_ADDR, addr);
97 val |= t4_read_reg(adap, A_TP_PIO_DATA) & ~mask;
98 t4_write_reg(adap, A_TP_PIO_DATA, val);
101 /* The minimum additive increment value for the congestion control table */
102 #define CC_MIN_INCR 2U
105 * t4_load_mtus - write the MTU and congestion control HW tables
107 * @mtus: the values for the MTU table
108 * @alpha: the values for the congestion control alpha parameter
109 * @beta: the values for the congestion control beta parameter
111 * Write the HW MTU table with the supplied MTUs and the high-speed
112 * congestion control table with the supplied alpha, beta, and MTUs.
113 * We write the two tables together because the additive increments
114 * depend on the MTUs.
116 void t4_load_mtus(struct adapter *adap, const unsigned short *mtus,
117 const unsigned short *alpha, const unsigned short *beta)
119 static const unsigned int avg_pkts[NCCTRL_WIN] = {
120 2, 6, 10, 14, 20, 28, 40, 56, 80, 112, 160, 224, 320, 448, 640,
121 896, 1281, 1792, 2560, 3584, 5120, 7168, 10240, 14336, 20480,
122 28672, 40960, 57344, 81920, 114688, 163840, 229376
127 for (i = 0; i < NMTUS; ++i) {
128 unsigned int mtu = mtus[i];
129 unsigned int log2 = cxgbe_fls(mtu);
131 if (!(mtu & ((1 << log2) >> 2))) /* round */
133 t4_write_reg(adap, A_TP_MTU_TABLE, V_MTUINDEX(i) |
134 V_MTUWIDTH(log2) | V_MTUVALUE(mtu));
136 for (w = 0; w < NCCTRL_WIN; ++w) {
139 inc = max(((mtu - 40) * alpha[w]) / avg_pkts[w],
142 t4_write_reg(adap, A_TP_CCTRL_TABLE, (i << 21) |
143 (w << 16) | (beta[w] << 13) | inc);
149 * t4_wait_op_done_val - wait until an operation is completed
150 * @adapter: the adapter performing the operation
151 * @reg: the register to check for completion
152 * @mask: a single-bit field within @reg that indicates completion
153 * @polarity: the value of the field when the operation is completed
154 * @attempts: number of check iterations
155 * @delay: delay in usecs between iterations
156 * @valp: where to store the value of the register at completion time
158 * Wait until an operation is completed by checking a bit in a register
159 * up to @attempts times. If @valp is not NULL the value of the register
160 * at the time it indicated completion is stored there. Returns 0 if the
161 * operation completes and -EAGAIN otherwise.
163 int t4_wait_op_done_val(struct adapter *adapter, int reg, u32 mask,
164 int polarity, int attempts, int delay, u32 *valp)
167 u32 val = t4_read_reg(adapter, reg);
169 if (!!(val & mask) == polarity) {
182 * t4_set_reg_field - set a register field to a value
183 * @adapter: the adapter to program
184 * @addr: the register address
185 * @mask: specifies the portion of the register to modify
186 * @val: the new value for the register field
188 * Sets a register field specified by the supplied mask to the
191 void t4_set_reg_field(struct adapter *adapter, unsigned int addr, u32 mask,
194 u32 v = t4_read_reg(adapter, addr) & ~mask;
196 t4_write_reg(adapter, addr, v | val);
197 (void)t4_read_reg(adapter, addr); /* flush */
201 * t4_read_indirect - read indirectly addressed registers
203 * @addr_reg: register holding the indirect address
204 * @data_reg: register holding the value of the indirect register
205 * @vals: where the read register values are stored
206 * @nregs: how many indirect registers to read
207 * @start_idx: index of first indirect register to read
209 * Reads registers that are accessed indirectly through an address/data
212 void t4_read_indirect(struct adapter *adap, unsigned int addr_reg,
213 unsigned int data_reg, u32 *vals, unsigned int nregs,
214 unsigned int start_idx)
217 t4_write_reg(adap, addr_reg, start_idx);
218 *vals++ = t4_read_reg(adap, data_reg);
224 * t4_write_indirect - write indirectly addressed registers
226 * @addr_reg: register holding the indirect addresses
227 * @data_reg: register holding the value for the indirect registers
228 * @vals: values to write
229 * @nregs: how many indirect registers to write
230 * @start_idx: address of first indirect register to write
232 * Writes a sequential block of registers that are accessed indirectly
233 * through an address/data register pair.
235 void t4_write_indirect(struct adapter *adap, unsigned int addr_reg,
236 unsigned int data_reg, const u32 *vals,
237 unsigned int nregs, unsigned int start_idx)
240 t4_write_reg(adap, addr_reg, start_idx++);
241 t4_write_reg(adap, data_reg, *vals++);
246 * t4_report_fw_error - report firmware error
249 * The adapter firmware can indicate error conditions to the host.
250 * If the firmware has indicated an error, print out the reason for
251 * the firmware error.
253 static void t4_report_fw_error(struct adapter *adap)
255 static const char * const reason[] = {
256 "Crash", /* PCIE_FW_EVAL_CRASH */
257 "During Device Preparation", /* PCIE_FW_EVAL_PREP */
258 "During Device Configuration", /* PCIE_FW_EVAL_CONF */
259 "During Device Initialization", /* PCIE_FW_EVAL_INIT */
260 "Unexpected Event", /* PCIE_FW_EVAL_UNEXPECTEDEVENT */
261 "Insufficient Airflow", /* PCIE_FW_EVAL_OVERHEAT */
262 "Device Shutdown", /* PCIE_FW_EVAL_DEVICESHUTDOWN */
263 "Reserved", /* reserved */
267 pcie_fw = t4_read_reg(adap, A_PCIE_FW);
268 if (pcie_fw & F_PCIE_FW_ERR)
269 pr_err("%s: Firmware reports adapter error: %s\n",
270 __func__, reason[G_PCIE_FW_EVAL(pcie_fw)]);
274 * Get the reply to a mailbox command and store it in @rpl in big-endian order.
276 static void get_mbox_rpl(struct adapter *adap, __be64 *rpl, int nflit,
279 for ( ; nflit; nflit--, mbox_addr += 8)
280 *rpl++ = htobe64(t4_read_reg64(adap, mbox_addr));
284 * Handle a FW assertion reported in a mailbox.
286 static void fw_asrt(struct adapter *adap, u32 mbox_addr)
288 struct fw_debug_cmd asrt;
290 get_mbox_rpl(adap, (__be64 *)&asrt, sizeof(asrt) / 8, mbox_addr);
291 pr_warn("FW assertion at %.16s:%u, val0 %#x, val1 %#x\n",
292 asrt.u.assert.filename_0_7, be32_to_cpu(asrt.u.assert.line),
293 be32_to_cpu(asrt.u.assert.x), be32_to_cpu(asrt.u.assert.y));
296 #define X_CIM_PF_NOACCESS 0xeeeeeeee
299 * If the Host OS Driver needs locking arround accesses to the mailbox, this
300 * can be turned on via the T4_OS_NEEDS_MBOX_LOCKING CPP define ...
302 /* makes single-statement usage a bit cleaner ... */
303 #ifdef T4_OS_NEEDS_MBOX_LOCKING
304 #define T4_OS_MBOX_LOCKING(x) x
306 #define T4_OS_MBOX_LOCKING(x) do {} while (0)
310 * t4_wr_mbox_meat_timeout - send a command to FW through the given mailbox
312 * @mbox: index of the mailbox to use
313 * @cmd: the command to write
314 * @size: command length in bytes
315 * @rpl: where to optionally store the reply
316 * @sleep_ok: if true we may sleep while awaiting command completion
317 * @timeout: time to wait for command to finish before timing out
318 * (negative implies @sleep_ok=false)
320 * Sends the given command to FW through the selected mailbox and waits
321 * for the FW to execute the command. If @rpl is not %NULL it is used to
322 * store the FW's reply to the command. The command and its optional
323 * reply are of the same length. Some FW commands like RESET and
324 * INITIALIZE can take a considerable amount of time to execute.
325 * @sleep_ok determines whether we may sleep while awaiting the response.
326 * If sleeping is allowed we use progressive backoff otherwise we spin.
327 * Note that passing in a negative @timeout is an alternate mechanism
328 * for specifying @sleep_ok=false. This is useful when a higher level
329 * interface allows for specification of @timeout but not @sleep_ok ...
331 * Returns 0 on success or a negative errno on failure. A
332 * failure can happen either because we are not able to execute the
333 * command or FW executes it but signals an error. In the latter case
334 * the return value is the error code indicated by FW (negated).
336 int t4_wr_mbox_meat_timeout(struct adapter *adap, int mbox,
337 const void __attribute__((__may_alias__)) *cmd,
338 int size, void *rpl, bool sleep_ok, int timeout)
341 * We delay in small increments at first in an effort to maintain
342 * responsiveness for simple, fast executing commands but then back
343 * off to larger delays to a maximum retry delay.
345 static const int delay[] = {
346 1, 1, 3, 5, 10, 10, 20, 50, 100
352 unsigned int delay_idx;
353 __be64 *temp = (__be64 *)malloc(size * sizeof(char));
355 u32 data_reg = PF_REG(mbox, A_CIM_PF_MAILBOX_DATA);
356 u32 ctl_reg = PF_REG(mbox, A_CIM_PF_MAILBOX_CTRL);
358 struct mbox_entry entry;
364 if ((size & 15) || size > MBOX_LEN) {
370 memcpy(p, (const __be64 *)cmd, size);
373 * If we have a negative timeout, that implies that we can't sleep.
380 #ifdef T4_OS_NEEDS_MBOX_LOCKING
382 * Queue ourselves onto the mailbox access list. When our entry is at
383 * the front of the list, we have rights to access the mailbox. So we
384 * wait [for a while] till we're at the front [or bail out with an
387 t4_os_atomic_add_tail(&entry, &adap->mbox_list, &adap->mbox_lock);
392 for (i = 0; ; i += ms) {
394 * If we've waited too long, return a busy indication. This
395 * really ought to be based on our initial position in the
396 * mailbox access list but this is a start. We very rarely
397 * contend on access to the mailbox ... Also check for a
398 * firmware error which we'll report as a device error.
400 pcie_fw = t4_read_reg(adap, A_PCIE_FW);
401 if (i > 4 * timeout || (pcie_fw & F_PCIE_FW_ERR)) {
402 t4_os_atomic_list_del(&entry, &adap->mbox_list,
404 t4_report_fw_error(adap);
406 return (pcie_fw & F_PCIE_FW_ERR) ? -ENXIO : -EBUSY;
410 * If we're at the head, break out and start the mailbox
413 if (t4_os_list_first_entry(&adap->mbox_list) == &entry)
417 * Delay for a bit before checking again ...
420 ms = delay[delay_idx]; /* last element may repeat */
421 if (delay_idx < ARRAY_SIZE(delay) - 1)
428 #endif /* T4_OS_NEEDS_MBOX_LOCKING */
431 * Attempt to gain access to the mailbox.
433 for (i = 0; i < 4; i++) {
434 ctl = t4_read_reg(adap, ctl_reg);
436 if (v != X_MBOWNER_NONE)
441 * If we were unable to gain access, dequeue ourselves from the
442 * mailbox atomic access list and report the error to our caller.
444 if (v != X_MBOWNER_PL) {
445 T4_OS_MBOX_LOCKING(t4_os_atomic_list_del(&entry,
448 t4_report_fw_error(adap);
450 return (v == X_MBOWNER_FW ? -EBUSY : -ETIMEDOUT);
454 * If we gain ownership of the mailbox and there's a "valid" message
455 * in it, this is likely an asynchronous error message from the
456 * firmware. So we'll report that and then proceed on with attempting
457 * to issue our own command ... which may well fail if the error
458 * presaged the firmware crashing ...
460 if (ctl & F_MBMSGVALID) {
461 dev_err(adap, "found VALID command in mbox %u: "
462 "%llx %llx %llx %llx %llx %llx %llx %llx\n", mbox,
463 (unsigned long long)t4_read_reg64(adap, data_reg),
464 (unsigned long long)t4_read_reg64(adap, data_reg + 8),
465 (unsigned long long)t4_read_reg64(adap, data_reg + 16),
466 (unsigned long long)t4_read_reg64(adap, data_reg + 24),
467 (unsigned long long)t4_read_reg64(adap, data_reg + 32),
468 (unsigned long long)t4_read_reg64(adap, data_reg + 40),
469 (unsigned long long)t4_read_reg64(adap, data_reg + 48),
470 (unsigned long long)t4_read_reg64(adap, data_reg + 56));
474 * Copy in the new mailbox command and send it on its way ...
476 for (i = 0; i < size; i += 8, p++)
477 t4_write_reg64(adap, data_reg + i, be64_to_cpu(*p));
479 CXGBE_DEBUG_MBOX(adap, "%s: mbox %u: %016llx %016llx %016llx %016llx "
480 "%016llx %016llx %016llx %016llx\n", __func__, (mbox),
481 (unsigned long long)t4_read_reg64(adap, data_reg),
482 (unsigned long long)t4_read_reg64(adap, data_reg + 8),
483 (unsigned long long)t4_read_reg64(adap, data_reg + 16),
484 (unsigned long long)t4_read_reg64(adap, data_reg + 24),
485 (unsigned long long)t4_read_reg64(adap, data_reg + 32),
486 (unsigned long long)t4_read_reg64(adap, data_reg + 40),
487 (unsigned long long)t4_read_reg64(adap, data_reg + 48),
488 (unsigned long long)t4_read_reg64(adap, data_reg + 56));
490 t4_write_reg(adap, ctl_reg, F_MBMSGVALID | V_MBOWNER(X_MBOWNER_FW));
491 t4_read_reg(adap, ctl_reg); /* flush write */
497 * Loop waiting for the reply; bail out if we time out or the firmware
500 pcie_fw = t4_read_reg(adap, A_PCIE_FW);
501 for (i = 0; i < timeout && !(pcie_fw & F_PCIE_FW_ERR); i += ms) {
503 ms = delay[delay_idx]; /* last element may repeat */
504 if (delay_idx < ARRAY_SIZE(delay) - 1)
511 pcie_fw = t4_read_reg(adap, A_PCIE_FW);
512 v = t4_read_reg(adap, ctl_reg);
513 if (v == X_CIM_PF_NOACCESS)
515 if (G_MBOWNER(v) == X_MBOWNER_PL) {
516 if (!(v & F_MBMSGVALID)) {
517 t4_write_reg(adap, ctl_reg,
518 V_MBOWNER(X_MBOWNER_NONE));
522 CXGBE_DEBUG_MBOX(adap,
523 "%s: mbox %u: %016llx %016llx %016llx %016llx "
524 "%016llx %016llx %016llx %016llx\n", __func__, (mbox),
525 (unsigned long long)t4_read_reg64(adap, data_reg),
526 (unsigned long long)t4_read_reg64(adap, data_reg + 8),
527 (unsigned long long)t4_read_reg64(adap, data_reg + 16),
528 (unsigned long long)t4_read_reg64(adap, data_reg + 24),
529 (unsigned long long)t4_read_reg64(adap, data_reg + 32),
530 (unsigned long long)t4_read_reg64(adap, data_reg + 40),
531 (unsigned long long)t4_read_reg64(adap, data_reg + 48),
532 (unsigned long long)t4_read_reg64(adap, data_reg + 56));
534 CXGBE_DEBUG_MBOX(adap,
535 "command %#x completed in %d ms (%ssleeping)\n",
537 i + ms, sleep_ok ? "" : "non-");
539 res = t4_read_reg64(adap, data_reg);
540 if (G_FW_CMD_OP(res >> 32) == FW_DEBUG_CMD) {
541 fw_asrt(adap, data_reg);
542 res = V_FW_CMD_RETVAL(EIO);
544 get_mbox_rpl(adap, rpl, size / 8, data_reg);
546 t4_write_reg(adap, ctl_reg, V_MBOWNER(X_MBOWNER_NONE));
548 t4_os_atomic_list_del(&entry, &adap->mbox_list,
551 return -G_FW_CMD_RETVAL((int)res);
556 * We timed out waiting for a reply to our mailbox command. Report
557 * the error and also check to see if the firmware reported any
560 dev_err(adap, "command %#x in mailbox %d timed out\n",
561 *(const u8 *)cmd, mbox);
562 T4_OS_MBOX_LOCKING(t4_os_atomic_list_del(&entry,
565 t4_report_fw_error(adap);
567 return (pcie_fw & F_PCIE_FW_ERR) ? -ENXIO : -ETIMEDOUT;
570 int t4_wr_mbox_meat(struct adapter *adap, int mbox, const void *cmd, int size,
571 void *rpl, bool sleep_ok)
573 return t4_wr_mbox_meat_timeout(adap, mbox, cmd, size, rpl, sleep_ok,
578 * t4_get_regs_len - return the size of the chips register set
579 * @adapter: the adapter
581 * Returns the size of the chip's BAR0 register space.
583 unsigned int t4_get_regs_len(struct adapter *adapter)
585 unsigned int chip_version = CHELSIO_CHIP_VERSION(adapter->params.chip);
587 switch (chip_version) {
590 return T5_REGMAP_SIZE;
594 "Unsupported chip version %d\n", chip_version);
599 * t4_get_regs - read chip registers into provided buffer
601 * @buf: register buffer
602 * @buf_size: size (in bytes) of register buffer
604 * If the provided register buffer isn't large enough for the chip's
605 * full register range, the register dump will be truncated to the
606 * register buffer's size.
608 void t4_get_regs(struct adapter *adap, void *buf, size_t buf_size)
610 static const unsigned int t5_reg_ranges[] = {
1385 static const unsigned int t6_reg_ranges[] = {
1946 u32 *buf_end = (u32 *)((char *)buf + buf_size);
1947 const unsigned int *reg_ranges;
1948 int reg_ranges_size, range;
1949 unsigned int chip_version = CHELSIO_CHIP_VERSION(adap->params.chip);
1951 /* Select the right set of register ranges to dump depending on the
1952 * adapter chip type.
1954 switch (chip_version) {
1956 reg_ranges = t5_reg_ranges;
1957 reg_ranges_size = ARRAY_SIZE(t5_reg_ranges);
1961 reg_ranges = t6_reg_ranges;
1962 reg_ranges_size = ARRAY_SIZE(t6_reg_ranges);
1967 "Unsupported chip version %d\n", chip_version);
1971 /* Clear the register buffer and insert the appropriate register
1972 * values selected by the above register ranges.
1974 memset(buf, 0, buf_size);
1975 for (range = 0; range < reg_ranges_size; range += 2) {
1976 unsigned int reg = reg_ranges[range];
1977 unsigned int last_reg = reg_ranges[range + 1];
1978 u32 *bufp = (u32 *)((char *)buf + reg);
1980 /* Iterate across the register range filling in the register
1981 * buffer but don't write past the end of the register buffer.
1983 while (reg <= last_reg && bufp < buf_end) {
1984 *bufp++ = t4_read_reg(adap, reg);
1990 /* EEPROM reads take a few tens of us while writes can take a bit over 5 ms. */
1991 #define EEPROM_DELAY 10 /* 10us per poll spin */
1992 #define EEPROM_MAX_POLL 5000 /* x 5000 == 50ms */
1994 #define EEPROM_STAT_ADDR 0x7bfc
1997 * Small utility function to wait till any outstanding VPD Access is complete.
1998 * We have a per-adapter state variable "VPD Busy" to indicate when we have a
1999 * VPD Access in flight. This allows us to handle the problem of having a
2000 * previous VPD Access time out and prevent an attempt to inject a new VPD
2001 * Request before any in-flight VPD request has completed.
2003 static int t4_seeprom_wait(struct adapter *adapter)
2005 unsigned int base = adapter->params.pci.vpd_cap_addr;
2008 /* If no VPD Access is in flight, we can just return success right
2011 if (!adapter->vpd_busy)
2014 /* Poll the VPD Capability Address/Flag register waiting for it
2015 * to indicate that the operation is complete.
2017 max_poll = EEPROM_MAX_POLL;
2021 udelay(EEPROM_DELAY);
2022 t4_os_pci_read_cfg2(adapter, base + PCI_VPD_ADDR, &val);
2024 /* If the operation is complete, mark the VPD as no longer
2025 * busy and return success.
2027 if ((val & PCI_VPD_ADDR_F) == adapter->vpd_flag) {
2028 adapter->vpd_busy = 0;
2031 } while (--max_poll);
2033 /* Failure! Note that we leave the VPD Busy status set in order to
2034 * avoid pushing a new VPD Access request into the VPD Capability till
2035 * the current operation eventually succeeds. It's a bug to issue a
2036 * new request when an existing request is in flight and will result
2037 * in corrupt hardware state.
2043 * t4_seeprom_read - read a serial EEPROM location
2044 * @adapter: adapter to read
2045 * @addr: EEPROM virtual address
2046 * @data: where to store the read data
2048 * Read a 32-bit word from a location in serial EEPROM using the card's PCI
2049 * VPD capability. Note that this function must be called with a virtual
2052 int t4_seeprom_read(struct adapter *adapter, u32 addr, u32 *data)
2054 unsigned int base = adapter->params.pci.vpd_cap_addr;
2057 /* VPD Accesses must alway be 4-byte aligned!
2059 if (addr >= EEPROMVSIZE || (addr & 3))
2062 /* Wait for any previous operation which may still be in flight to
2065 ret = t4_seeprom_wait(adapter);
2067 dev_err(adapter, "VPD still busy from previous operation\n");
2071 /* Issue our new VPD Read request, mark the VPD as being busy and wait
2072 * for our request to complete. If it doesn't complete, note the
2073 * error and return it to our caller. Note that we do not reset the
2076 t4_os_pci_write_cfg2(adapter, base + PCI_VPD_ADDR, (u16)addr);
2077 adapter->vpd_busy = 1;
2078 adapter->vpd_flag = PCI_VPD_ADDR_F;
2079 ret = t4_seeprom_wait(adapter);
2081 dev_err(adapter, "VPD read of address %#x failed\n", addr);
2085 /* Grab the returned data, swizzle it into our endianness and
2088 t4_os_pci_read_cfg4(adapter, base + PCI_VPD_DATA, data);
2089 *data = le32_to_cpu(*data);
2094 * t4_seeprom_write - write a serial EEPROM location
2095 * @adapter: adapter to write
2096 * @addr: virtual EEPROM address
2097 * @data: value to write
2099 * Write a 32-bit word to a location in serial EEPROM using the card's PCI
2100 * VPD capability. Note that this function must be called with a virtual
2103 int t4_seeprom_write(struct adapter *adapter, u32 addr, u32 data)
2105 unsigned int base = adapter->params.pci.vpd_cap_addr;
2110 /* VPD Accesses must alway be 4-byte aligned!
2112 if (addr >= EEPROMVSIZE || (addr & 3))
2115 /* Wait for any previous operation which may still be in flight to
2118 ret = t4_seeprom_wait(adapter);
2120 dev_err(adapter, "VPD still busy from previous operation\n");
2124 /* Issue our new VPD Read request, mark the VPD as being busy and wait
2125 * for our request to complete. If it doesn't complete, note the
2126 * error and return it to our caller. Note that we do not reset the
2129 t4_os_pci_write_cfg4(adapter, base + PCI_VPD_DATA,
2131 t4_os_pci_write_cfg2(adapter, base + PCI_VPD_ADDR,
2132 (u16)addr | PCI_VPD_ADDR_F);
2133 adapter->vpd_busy = 1;
2134 adapter->vpd_flag = 0;
2135 ret = t4_seeprom_wait(adapter);
2137 dev_err(adapter, "VPD write of address %#x failed\n", addr);
2141 /* Reset PCI_VPD_DATA register after a transaction and wait for our
2142 * request to complete. If it doesn't complete, return error.
2144 t4_os_pci_write_cfg4(adapter, base + PCI_VPD_DATA, 0);
2145 max_poll = EEPROM_MAX_POLL;
2147 udelay(EEPROM_DELAY);
2148 t4_seeprom_read(adapter, EEPROM_STAT_ADDR, &stats_reg);
2149 } while ((stats_reg & 0x1) && --max_poll);
2153 /* Return success! */
2158 * t4_seeprom_wp - enable/disable EEPROM write protection
2159 * @adapter: the adapter
2160 * @enable: whether to enable or disable write protection
2162 * Enables or disables write protection on the serial EEPROM.
2164 int t4_seeprom_wp(struct adapter *adapter, int enable)
2166 return t4_seeprom_write(adapter, EEPROM_STAT_ADDR, enable ? 0xc : 0);
2170 * t4_fw_tp_pio_rw - Access TP PIO through LDST
2171 * @adap: the adapter
2172 * @vals: where the indirect register values are stored/written
2173 * @nregs: how many indirect registers to read/write
2174 * @start_idx: index of first indirect register to read/write
2175 * @rw: Read (1) or Write (0)
2177 * Access TP PIO registers through LDST
2179 void t4_fw_tp_pio_rw(struct adapter *adap, u32 *vals, unsigned int nregs,
2180 unsigned int start_index, unsigned int rw)
2182 int cmd = FW_LDST_ADDRSPC_TP_PIO;
2183 struct fw_ldst_cmd c;
2187 for (i = 0 ; i < nregs; i++) {
2188 memset(&c, 0, sizeof(c));
2189 c.op_to_addrspace = cpu_to_be32(V_FW_CMD_OP(FW_LDST_CMD) |
2191 (rw ? F_FW_CMD_READ :
2193 V_FW_LDST_CMD_ADDRSPACE(cmd));
2194 c.cycles_to_len16 = cpu_to_be32(FW_LEN16(c));
2196 c.u.addrval.addr = cpu_to_be32(start_index + i);
2197 c.u.addrval.val = rw ? 0 : cpu_to_be32(vals[i]);
2198 ret = t4_wr_mbox(adap, adap->mbox, &c, sizeof(c), &c);
2201 vals[i] = be32_to_cpu(c.u.addrval.val);
2207 * t4_read_rss_key - read the global RSS key
2208 * @adap: the adapter
2209 * @key: 10-entry array holding the 320-bit RSS key
2211 * Reads the global 320-bit RSS key.
2213 void t4_read_rss_key(struct adapter *adap, u32 *key)
2215 t4_fw_tp_pio_rw(adap, key, 10, A_TP_RSS_SECRET_KEY0, 1);
2219 * t4_write_rss_key - program one of the RSS keys
2220 * @adap: the adapter
2221 * @key: 10-entry array holding the 320-bit RSS key
2222 * @idx: which RSS key to write
2224 * Writes one of the RSS keys with the given 320-bit value. If @idx is
2225 * 0..15 the corresponding entry in the RSS key table is written,
2226 * otherwise the global RSS key is written.
2228 void t4_write_rss_key(struct adapter *adap, u32 *key, int idx)
2230 u32 vrt = t4_read_reg(adap, A_TP_RSS_CONFIG_VRT);
2231 u8 rss_key_addr_cnt = 16;
2233 /* T6 and later: for KeyMode 3 (per-vf and per-vf scramble),
2234 * allows access to key addresses 16-63 by using KeyWrAddrX
2235 * as index[5:4](upper 2) into key table
2237 if ((CHELSIO_CHIP_VERSION(adap->params.chip) > CHELSIO_T5) &&
2238 (vrt & F_KEYEXTEND) && (G_KEYMODE(vrt) == 3))
2239 rss_key_addr_cnt = 32;
2241 t4_fw_tp_pio_rw(adap, key, 10, A_TP_RSS_SECRET_KEY0, 0);
2243 if (idx >= 0 && idx < rss_key_addr_cnt) {
2244 if (rss_key_addr_cnt > 16)
2245 t4_write_reg(adap, A_TP_RSS_CONFIG_VRT,
2246 V_KEYWRADDRX(idx >> 4) |
2247 V_T6_VFWRADDR(idx) | F_KEYWREN);
2249 t4_write_reg(adap, A_TP_RSS_CONFIG_VRT,
2250 V_KEYWRADDR(idx) | F_KEYWREN);
2255 * t4_config_rss_range - configure a portion of the RSS mapping table
2256 * @adapter: the adapter
2257 * @mbox: mbox to use for the FW command
2258 * @viid: virtual interface whose RSS subtable is to be written
2259 * @start: start entry in the table to write
2260 * @n: how many table entries to write
2261 * @rspq: values for the "response queue" (Ingress Queue) lookup table
2262 * @nrspq: number of values in @rspq
2264 * Programs the selected part of the VI's RSS mapping table with the
2265 * provided values. If @nrspq < @n the supplied values are used repeatedly
2266 * until the full table range is populated.
2268 * The caller must ensure the values in @rspq are in the range allowed for
2271 int t4_config_rss_range(struct adapter *adapter, int mbox, unsigned int viid,
2272 int start, int n, const u16 *rspq, unsigned int nrspq)
2275 const u16 *rsp = rspq;
2276 const u16 *rsp_end = rspq + nrspq;
2277 struct fw_rss_ind_tbl_cmd cmd;
2279 memset(&cmd, 0, sizeof(cmd));
2280 cmd.op_to_viid = cpu_to_be32(V_FW_CMD_OP(FW_RSS_IND_TBL_CMD) |
2281 F_FW_CMD_REQUEST | F_FW_CMD_WRITE |
2282 V_FW_RSS_IND_TBL_CMD_VIID(viid));
2283 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
2286 * Each firmware RSS command can accommodate up to 32 RSS Ingress
2287 * Queue Identifiers. These Ingress Queue IDs are packed three to
2288 * a 32-bit word as 10-bit values with the upper remaining 2 bits
2292 int nq = min(n, 32);
2294 __be32 *qp = &cmd.iq0_to_iq2;
2297 * Set up the firmware RSS command header to send the next
2298 * "nq" Ingress Queue IDs to the firmware.
2300 cmd.niqid = cpu_to_be16(nq);
2301 cmd.startidx = cpu_to_be16(start);
2304 * "nq" more done for the start of the next loop.
2310 * While there are still Ingress Queue IDs to stuff into the
2311 * current firmware RSS command, retrieve them from the
2312 * Ingress Queue ID array and insert them into the command.
2316 * Grab up to the next 3 Ingress Queue IDs (wrapping
2317 * around the Ingress Queue ID array if necessary) and
2318 * insert them into the firmware RSS command at the
2319 * current 3-tuple position within the commad.
2323 int nqbuf = min(3, nq);
2329 while (nqbuf && nq_packed < 32) {
2336 *qp++ = cpu_to_be32(V_FW_RSS_IND_TBL_CMD_IQ0(qbuf[0]) |
2337 V_FW_RSS_IND_TBL_CMD_IQ1(qbuf[1]) |
2338 V_FW_RSS_IND_TBL_CMD_IQ2(qbuf[2]));
2342 * Send this portion of the RRS table update to the firmware;
2343 * bail out on any errors.
2345 ret = t4_wr_mbox(adapter, mbox, &cmd, sizeof(cmd), NULL);
2354 * t4_config_vi_rss - configure per VI RSS settings
2355 * @adapter: the adapter
2356 * @mbox: mbox to use for the FW command
2359 * @defq: id of the default RSS queue for the VI.
2361 * Configures VI-specific RSS properties.
2363 int t4_config_vi_rss(struct adapter *adapter, int mbox, unsigned int viid,
2364 unsigned int flags, unsigned int defq)
2366 struct fw_rss_vi_config_cmd c;
2368 memset(&c, 0, sizeof(c));
2369 c.op_to_viid = cpu_to_be32(V_FW_CMD_OP(FW_RSS_VI_CONFIG_CMD) |
2370 F_FW_CMD_REQUEST | F_FW_CMD_WRITE |
2371 V_FW_RSS_VI_CONFIG_CMD_VIID(viid));
2372 c.retval_len16 = cpu_to_be32(FW_LEN16(c));
2373 c.u.basicvirtual.defaultq_to_udpen = cpu_to_be32(flags |
2374 V_FW_RSS_VI_CONFIG_CMD_DEFAULTQ(defq));
2375 return t4_wr_mbox(adapter, mbox, &c, sizeof(c), NULL);
2379 * t4_read_config_vi_rss - read the configured per VI RSS settings
2380 * @adapter: the adapter
2381 * @mbox: mbox to use for the FW command
2383 * @flags: where to place the configured flags
2384 * @defq: where to place the id of the default RSS queue for the VI.
2386 * Read configured VI-specific RSS properties.
2388 int t4_read_config_vi_rss(struct adapter *adapter, int mbox, unsigned int viid,
2389 u64 *flags, unsigned int *defq)
2391 struct fw_rss_vi_config_cmd c;
2392 unsigned int result;
2395 memset(&c, 0, sizeof(c));
2396 c.op_to_viid = cpu_to_be32(V_FW_CMD_OP(FW_RSS_VI_CONFIG_CMD) |
2397 F_FW_CMD_REQUEST | F_FW_CMD_READ |
2398 V_FW_RSS_VI_CONFIG_CMD_VIID(viid));
2399 c.retval_len16 = cpu_to_be32(FW_LEN16(c));
2400 ret = t4_wr_mbox(adapter, mbox, &c, sizeof(c), &c);
2402 result = be32_to_cpu(c.u.basicvirtual.defaultq_to_udpen);
2404 *defq = G_FW_RSS_VI_CONFIG_CMD_DEFAULTQ(result);
2406 *flags = result & M_FW_RSS_VI_CONFIG_CMD_DEFAULTQ;
2413 * init_cong_ctrl - initialize congestion control parameters
2414 * @a: the alpha values for congestion control
2415 * @b: the beta values for congestion control
2417 * Initialize the congestion control parameters.
2419 static void init_cong_ctrl(unsigned short *a, unsigned short *b)
2423 for (i = 0; i < 9; i++) {
2477 #define INIT_CMD(var, cmd, rd_wr) do { \
2478 (var).op_to_write = cpu_to_be32(V_FW_CMD_OP(FW_##cmd##_CMD) | \
2479 F_FW_CMD_REQUEST | F_FW_CMD_##rd_wr); \
2480 (var).retval_len16 = cpu_to_be32(FW_LEN16(var)); \
2483 int t4_get_core_clock(struct adapter *adapter, struct vpd_params *p)
2485 u32 cclk_param, cclk_val;
2489 * Ask firmware for the Core Clock since it knows how to translate the
2490 * Reference Clock ('V2') VPD field into a Core Clock value ...
2492 cclk_param = (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
2493 V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_CCLK));
2494 ret = t4_query_params(adapter, adapter->mbox, adapter->pf, 0,
2495 1, &cclk_param, &cclk_val);
2497 dev_err(adapter, "%s: error in fetching from coreclock - %d\n",
2503 dev_debug(adapter, "%s: p->cclk = %u\n", __func__, p->cclk);
2507 /* serial flash and firmware constants and flash config file constants */
2509 SF_ATTEMPTS = 10, /* max retries for SF operations */
2511 /* flash command opcodes */
2512 SF_PROG_PAGE = 2, /* program page */
2513 SF_WR_DISABLE = 4, /* disable writes */
2514 SF_RD_STATUS = 5, /* read status register */
2515 SF_WR_ENABLE = 6, /* enable writes */
2516 SF_RD_DATA_FAST = 0xb, /* read flash */
2517 SF_RD_ID = 0x9f, /* read ID */
2518 SF_ERASE_SECTOR = 0xd8, /* erase sector */
2522 * sf1_read - read data from the serial flash
2523 * @adapter: the adapter
2524 * @byte_cnt: number of bytes to read
2525 * @cont: whether another operation will be chained
2526 * @lock: whether to lock SF for PL access only
2527 * @valp: where to store the read data
2529 * Reads up to 4 bytes of data from the serial flash. The location of
2530 * the read needs to be specified prior to calling this by issuing the
2531 * appropriate commands to the serial flash.
2533 static int sf1_read(struct adapter *adapter, unsigned int byte_cnt, int cont,
2534 int lock, u32 *valp)
2538 if (!byte_cnt || byte_cnt > 4)
2540 if (t4_read_reg(adapter, A_SF_OP) & F_BUSY)
2542 t4_write_reg(adapter, A_SF_OP,
2543 V_SF_LOCK(lock) | V_CONT(cont) | V_BYTECNT(byte_cnt - 1));
2544 ret = t4_wait_op_done(adapter, A_SF_OP, F_BUSY, 0, SF_ATTEMPTS, 5);
2546 *valp = t4_read_reg(adapter, A_SF_DATA);
2551 * sf1_write - write data to the serial flash
2552 * @adapter: the adapter
2553 * @byte_cnt: number of bytes to write
2554 * @cont: whether another operation will be chained
2555 * @lock: whether to lock SF for PL access only
2556 * @val: value to write
2558 * Writes up to 4 bytes of data to the serial flash. The location of
2559 * the write needs to be specified prior to calling this by issuing the
2560 * appropriate commands to the serial flash.
2562 static int sf1_write(struct adapter *adapter, unsigned int byte_cnt, int cont,
2565 if (!byte_cnt || byte_cnt > 4)
2567 if (t4_read_reg(adapter, A_SF_OP) & F_BUSY)
2569 t4_write_reg(adapter, A_SF_DATA, val);
2570 t4_write_reg(adapter, A_SF_OP, V_SF_LOCK(lock) |
2571 V_CONT(cont) | V_BYTECNT(byte_cnt - 1) | V_OP(1));
2572 return t4_wait_op_done(adapter, A_SF_OP, F_BUSY, 0, SF_ATTEMPTS, 5);
2576 * t4_read_flash - read words from serial flash
2577 * @adapter: the adapter
2578 * @addr: the start address for the read
2579 * @nwords: how many 32-bit words to read
2580 * @data: where to store the read data
2581 * @byte_oriented: whether to store data as bytes or as words
2583 * Read the specified number of 32-bit words from the serial flash.
2584 * If @byte_oriented is set the read data is stored as a byte array
2585 * (i.e., big-endian), otherwise as 32-bit words in the platform's
2586 * natural endianness.
2588 int t4_read_flash(struct adapter *adapter, unsigned int addr,
2589 unsigned int nwords, u32 *data, int byte_oriented)
2593 if (((addr + nwords * sizeof(u32)) > adapter->params.sf_size) ||
2597 addr = rte_constant_bswap32(addr) | SF_RD_DATA_FAST;
2599 ret = sf1_write(adapter, 4, 1, 0, addr);
2603 ret = sf1_read(adapter, 1, 1, 0, data);
2607 for ( ; nwords; nwords--, data++) {
2608 ret = sf1_read(adapter, 4, nwords > 1, nwords == 1, data);
2610 t4_write_reg(adapter, A_SF_OP, 0); /* unlock SF */
2614 *data = cpu_to_be32(*data);
2620 * t4_get_exprom_version - return the Expansion ROM version (if any)
2621 * @adapter: the adapter
2622 * @vers: where to place the version
2624 * Reads the Expansion ROM header from FLASH and returns the version
2625 * number (if present) through the @vers return value pointer. We return
2626 * this in the Firmware Version Format since it's convenient. Return
2627 * 0 on success, -ENOENT if no Expansion ROM is present.
2629 static int t4_get_exprom_version(struct adapter *adapter, u32 *vers)
2631 struct exprom_header {
2632 unsigned char hdr_arr[16]; /* must start with 0x55aa */
2633 unsigned char hdr_ver[4]; /* Expansion ROM version */
2635 u32 exprom_header_buf[DIV_ROUND_UP(sizeof(struct exprom_header),
2639 ret = t4_read_flash(adapter, FLASH_EXP_ROM_START,
2640 ARRAY_SIZE(exprom_header_buf),
2641 exprom_header_buf, 0);
2645 hdr = (struct exprom_header *)exprom_header_buf;
2646 if (hdr->hdr_arr[0] != 0x55 || hdr->hdr_arr[1] != 0xaa)
2649 *vers = (V_FW_HDR_FW_VER_MAJOR(hdr->hdr_ver[0]) |
2650 V_FW_HDR_FW_VER_MINOR(hdr->hdr_ver[1]) |
2651 V_FW_HDR_FW_VER_MICRO(hdr->hdr_ver[2]) |
2652 V_FW_HDR_FW_VER_BUILD(hdr->hdr_ver[3]));
2657 * t4_get_fw_version - read the firmware version
2658 * @adapter: the adapter
2659 * @vers: where to place the version
2661 * Reads the FW version from flash.
2663 static int t4_get_fw_version(struct adapter *adapter, u32 *vers)
2665 return t4_read_flash(adapter, FLASH_FW_START +
2666 offsetof(struct fw_hdr, fw_ver), 1, vers, 0);
2670 * t4_get_bs_version - read the firmware bootstrap version
2671 * @adapter: the adapter
2672 * @vers: where to place the version
2674 * Reads the FW Bootstrap version from flash.
2676 static int t4_get_bs_version(struct adapter *adapter, u32 *vers)
2678 return t4_read_flash(adapter, FLASH_FWBOOTSTRAP_START +
2679 offsetof(struct fw_hdr, fw_ver), 1,
2684 * t4_get_tp_version - read the TP microcode version
2685 * @adapter: the adapter
2686 * @vers: where to place the version
2688 * Reads the TP microcode version from flash.
2690 static int t4_get_tp_version(struct adapter *adapter, u32 *vers)
2692 return t4_read_flash(adapter, FLASH_FW_START +
2693 offsetof(struct fw_hdr, tp_microcode_ver),
2698 * t4_get_version_info - extract various chip/firmware version information
2699 * @adapter: the adapter
2701 * Reads various chip/firmware version numbers and stores them into the
2702 * adapter Adapter Parameters structure. If any of the efforts fails
2703 * the first failure will be returned, but all of the version numbers
2706 int t4_get_version_info(struct adapter *adapter)
2710 #define FIRST_RET(__getvinfo) \
2712 int __ret = __getvinfo; \
2713 if (__ret && !ret) \
2717 FIRST_RET(t4_get_fw_version(adapter, &adapter->params.fw_vers));
2718 FIRST_RET(t4_get_bs_version(adapter, &adapter->params.bs_vers));
2719 FIRST_RET(t4_get_tp_version(adapter, &adapter->params.tp_vers));
2720 FIRST_RET(t4_get_exprom_version(adapter, &adapter->params.er_vers));
2728 * t4_dump_version_info - dump all of the adapter configuration IDs
2729 * @adapter: the adapter
2731 * Dumps all of the various bits of adapter configuration version/revision
2732 * IDs information. This is typically called at some point after
2733 * t4_get_version_info() has been called.
2735 void t4_dump_version_info(struct adapter *adapter)
2738 * Device information.
2740 dev_info(adapter, "Chelsio rev %d\n",
2741 CHELSIO_CHIP_RELEASE(adapter->params.chip));
2746 if (!adapter->params.fw_vers)
2747 dev_warn(adapter, "No firmware loaded\n");
2749 dev_info(adapter, "Firmware version: %u.%u.%u.%u\n",
2750 G_FW_HDR_FW_VER_MAJOR(adapter->params.fw_vers),
2751 G_FW_HDR_FW_VER_MINOR(adapter->params.fw_vers),
2752 G_FW_HDR_FW_VER_MICRO(adapter->params.fw_vers),
2753 G_FW_HDR_FW_VER_BUILD(adapter->params.fw_vers));
2756 * Bootstrap Firmware Version.
2758 if (!adapter->params.bs_vers)
2759 dev_warn(adapter, "No bootstrap loaded\n");
2761 dev_info(adapter, "Bootstrap version: %u.%u.%u.%u\n",
2762 G_FW_HDR_FW_VER_MAJOR(adapter->params.bs_vers),
2763 G_FW_HDR_FW_VER_MINOR(adapter->params.bs_vers),
2764 G_FW_HDR_FW_VER_MICRO(adapter->params.bs_vers),
2765 G_FW_HDR_FW_VER_BUILD(adapter->params.bs_vers));
2768 * TP Microcode Version.
2770 if (!adapter->params.tp_vers)
2771 dev_warn(adapter, "No TP Microcode loaded\n");
2773 dev_info(adapter, "TP Microcode version: %u.%u.%u.%u\n",
2774 G_FW_HDR_FW_VER_MAJOR(adapter->params.tp_vers),
2775 G_FW_HDR_FW_VER_MINOR(adapter->params.tp_vers),
2776 G_FW_HDR_FW_VER_MICRO(adapter->params.tp_vers),
2777 G_FW_HDR_FW_VER_BUILD(adapter->params.tp_vers));
2780 * Expansion ROM version.
2782 if (!adapter->params.er_vers)
2783 dev_info(adapter, "No Expansion ROM loaded\n");
2785 dev_info(adapter, "Expansion ROM version: %u.%u.%u.%u\n",
2786 G_FW_HDR_FW_VER_MAJOR(adapter->params.er_vers),
2787 G_FW_HDR_FW_VER_MINOR(adapter->params.er_vers),
2788 G_FW_HDR_FW_VER_MICRO(adapter->params.er_vers),
2789 G_FW_HDR_FW_VER_BUILD(adapter->params.er_vers));
2792 #define ADVERT_MASK (V_FW_PORT_CAP32_SPEED(M_FW_PORT_CAP32_SPEED) | \
2795 * fwcaps32_to_caps16 - convert 32-bit Port Capabilities to 16-bits
2796 * @caps32: a 32-bit Port Capabilities value
2798 * Returns the equivalent 16-bit Port Capabilities value. Note that
2799 * not all 32-bit Port Capabilities can be represented in the 16-bit
2800 * Port Capabilities and some fields/values may not make it.
2802 static fw_port_cap16_t fwcaps32_to_caps16(fw_port_cap32_t caps32)
2804 fw_port_cap16_t caps16 = 0;
2806 #define CAP32_TO_CAP16(__cap) \
2808 if (caps32 & FW_PORT_CAP32_##__cap) \
2809 caps16 |= FW_PORT_CAP_##__cap; \
2812 CAP32_TO_CAP16(SPEED_100M);
2813 CAP32_TO_CAP16(SPEED_1G);
2814 CAP32_TO_CAP16(SPEED_10G);
2815 CAP32_TO_CAP16(SPEED_25G);
2816 CAP32_TO_CAP16(SPEED_40G);
2817 CAP32_TO_CAP16(SPEED_100G);
2818 CAP32_TO_CAP16(FC_RX);
2819 CAP32_TO_CAP16(FC_TX);
2820 CAP32_TO_CAP16(802_3_PAUSE);
2821 CAP32_TO_CAP16(802_3_ASM_DIR);
2822 CAP32_TO_CAP16(ANEG);
2823 CAP32_TO_CAP16(MDIX);
2824 CAP32_TO_CAP16(MDIAUTO);
2825 CAP32_TO_CAP16(FEC_RS);
2826 CAP32_TO_CAP16(FEC_BASER_RS);
2828 #undef CAP32_TO_CAP16
2833 /* Translate Firmware Pause specification to Common Code */
2834 static inline enum cc_pause fwcap_to_cc_pause(fw_port_cap32_t fw_pause)
2836 enum cc_pause cc_pause = 0;
2838 if (fw_pause & FW_PORT_CAP32_FC_RX)
2839 cc_pause |= PAUSE_RX;
2840 if (fw_pause & FW_PORT_CAP32_FC_TX)
2841 cc_pause |= PAUSE_TX;
2846 /* Translate Common Code Pause Frame specification into Firmware */
2847 static inline fw_port_cap32_t cc_to_fwcap_pause(enum cc_pause cc_pause)
2849 fw_port_cap32_t fw_pause = 0;
2851 if (cc_pause & PAUSE_RX)
2852 fw_pause |= FW_PORT_CAP32_FC_RX;
2853 if (cc_pause & PAUSE_TX)
2854 fw_pause |= FW_PORT_CAP32_FC_TX;
2859 /* Translate Firmware Forward Error Correction specification to Common Code */
2860 static inline enum cc_fec fwcap_to_cc_fec(fw_port_cap32_t fw_fec)
2862 enum cc_fec cc_fec = 0;
2864 if (fw_fec & FW_PORT_CAP32_FEC_RS)
2866 if (fw_fec & FW_PORT_CAP32_FEC_BASER_RS)
2867 cc_fec |= FEC_BASER_RS;
2872 /* Translate Common Code Forward Error Correction specification to Firmware */
2873 static inline fw_port_cap32_t cc_to_fwcap_fec(enum cc_fec cc_fec)
2875 fw_port_cap32_t fw_fec = 0;
2877 if (cc_fec & FEC_RS)
2878 fw_fec |= FW_PORT_CAP32_FEC_RS;
2879 if (cc_fec & FEC_BASER_RS)
2880 fw_fec |= FW_PORT_CAP32_FEC_BASER_RS;
2886 * t4_link_l1cfg - apply link configuration to MAC/PHY
2887 * @adapter: the adapter
2888 * @mbox: the Firmware Mailbox to use
2889 * @port: the Port ID
2890 * @lc: the Port's Link Configuration
2892 * Set up a port's MAC and PHY according to a desired link configuration.
2893 * - If the PHY can auto-negotiate first decide what to advertise, then
2894 * enable/disable auto-negotiation as desired, and reset.
2895 * - If the PHY does not auto-negotiate just reset it.
2896 * - If auto-negotiation is off set the MAC to the proper speed/duplex/FC,
2897 * otherwise do it later based on the outcome of auto-negotiation.
2899 int t4_link_l1cfg(struct adapter *adap, unsigned int mbox, unsigned int port,
2900 struct link_config *lc)
2902 unsigned int fw_mdi = V_FW_PORT_CAP32_MDI(FW_PORT_CAP32_MDI_AUTO);
2903 fw_port_cap32_t fw_fc, cc_fec, fw_fec, rcap;
2904 struct fw_port_cmd cmd;
2908 fw_fc = cc_to_fwcap_pause(lc->requested_fc);
2910 /* Convert Common Code Forward Error Control settings into the
2911 * Firmware's API. If the current Requested FEC has "Automatic"
2912 * (IEEE 802.3) specified, then we use whatever the Firmware
2913 * sent us as part of it's IEEE 802.3-based interpratation of
2914 * the Transceiver Module EPROM FEC parameters. Otherwise we
2915 * use whatever is in the current Requested FEC settings.
2917 if (lc->requested_fec & FEC_AUTO)
2918 cc_fec = lc->auto_fec;
2920 cc_fec = lc->requested_fec;
2921 fw_fec = cc_to_fwcap_fec(cc_fec);
2923 /* Figure out what our Requested Port Capabilities are going to be.
2925 if (!(lc->pcaps & FW_PORT_CAP32_ANEG)) {
2926 rcap = (lc->pcaps & ADVERT_MASK) | fw_fc | fw_fec;
2927 lc->fc = lc->requested_fc & ~PAUSE_AUTONEG;
2929 } else if (lc->autoneg == AUTONEG_DISABLE) {
2930 rcap = lc->requested_speed | fw_fc | fw_fec | fw_mdi;
2931 lc->fc = lc->requested_fc & ~PAUSE_AUTONEG;
2934 rcap = lc->acaps | fw_fc | fw_fec | fw_mdi;
2937 /* And send that on to the Firmware ...
2939 memset(&cmd, 0, sizeof(cmd));
2940 cmd.op_to_portid = cpu_to_be32(V_FW_CMD_OP(FW_PORT_CMD) |
2941 F_FW_CMD_REQUEST | F_FW_CMD_EXEC |
2942 V_FW_PORT_CMD_PORTID(port));
2943 cmd.action_to_len16 =
2944 cpu_to_be32(V_FW_PORT_CMD_ACTION(FW_PORT_ACTION_L1_CFG) |
2946 cmd.u.l1cfg.rcap = cpu_to_be32(fwcaps32_to_caps16(rcap));
2948 return t4_wr_mbox(adap, mbox, &cmd, sizeof(cmd), NULL);
2952 * t4_flash_cfg_addr - return the address of the flash configuration file
2953 * @adapter: the adapter
2955 * Return the address within the flash where the Firmware Configuration
2956 * File is stored, or an error if the device FLASH is too small to contain
2957 * a Firmware Configuration File.
2959 int t4_flash_cfg_addr(struct adapter *adapter)
2962 * If the device FLASH isn't large enough to hold a Firmware
2963 * Configuration File, return an error.
2965 if (adapter->params.sf_size < FLASH_CFG_START + FLASH_CFG_MAX_SIZE)
2968 return FLASH_CFG_START;
2971 #define PF_INTR_MASK (F_PFSW | F_PFCIM)
2974 * t4_intr_enable - enable interrupts
2975 * @adapter: the adapter whose interrupts should be enabled
2977 * Enable PF-specific interrupts for the calling function and the top-level
2978 * interrupt concentrator for global interrupts. Interrupts are already
2979 * enabled at each module, here we just enable the roots of the interrupt
2982 * Note: this function should be called only when the driver manages
2983 * non PF-specific interrupts from the various HW modules. Only one PCI
2984 * function at a time should be doing this.
2986 void t4_intr_enable(struct adapter *adapter)
2989 u32 whoami = t4_read_reg(adapter, A_PL_WHOAMI);
2990 u32 pf = CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5 ?
2991 G_SOURCEPF(whoami) : G_T6_SOURCEPF(whoami);
2993 if (CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5)
2994 val = F_ERR_DROPPED_DB | F_ERR_EGR_CTXT_PRIO | F_DBFIFO_HP_INT;
2995 t4_write_reg(adapter, A_SGE_INT_ENABLE3, F_ERR_CPL_EXCEED_IQE_SIZE |
2996 F_ERR_INVALID_CIDX_INC | F_ERR_CPL_OPCODE_0 |
2997 F_ERR_DATA_CPL_ON_HIGH_QID1 | F_INGRESS_SIZE_ERR |
2998 F_ERR_DATA_CPL_ON_HIGH_QID0 | F_ERR_BAD_DB_PIDX3 |
2999 F_ERR_BAD_DB_PIDX2 | F_ERR_BAD_DB_PIDX1 |
3000 F_ERR_BAD_DB_PIDX0 | F_ERR_ING_CTXT_PRIO |
3001 F_DBFIFO_LP_INT | F_EGRESS_SIZE_ERR | val);
3002 t4_write_reg(adapter, MYPF_REG(A_PL_PF_INT_ENABLE), PF_INTR_MASK);
3003 t4_set_reg_field(adapter, A_PL_INT_MAP0, 0, 1 << pf);
3007 * t4_intr_disable - disable interrupts
3008 * @adapter: the adapter whose interrupts should be disabled
3010 * Disable interrupts. We only disable the top-level interrupt
3011 * concentrators. The caller must be a PCI function managing global
3014 void t4_intr_disable(struct adapter *adapter)
3016 u32 whoami = t4_read_reg(adapter, A_PL_WHOAMI);
3017 u32 pf = CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5 ?
3018 G_SOURCEPF(whoami) : G_T6_SOURCEPF(whoami);
3020 t4_write_reg(adapter, MYPF_REG(A_PL_PF_INT_ENABLE), 0);
3021 t4_set_reg_field(adapter, A_PL_INT_MAP0, 1 << pf, 0);
3025 * t4_get_port_type_description - return Port Type string description
3026 * @port_type: firmware Port Type enumeration
3028 const char *t4_get_port_type_description(enum fw_port_type port_type)
3030 static const char * const port_type_description[] = {
3055 if (port_type < ARRAY_SIZE(port_type_description))
3056 return port_type_description[port_type];
3061 * t4_get_mps_bg_map - return the buffer groups associated with a port
3062 * @adap: the adapter
3063 * @pidx: the port index
3065 * Returns a bitmap indicating which MPS buffer groups are associated
3066 * with the given port. Bit i is set if buffer group i is used by the
3069 unsigned int t4_get_mps_bg_map(struct adapter *adap, unsigned int pidx)
3071 unsigned int chip_version = CHELSIO_CHIP_VERSION(adap->params.chip);
3072 unsigned int nports = 1 << G_NUMPORTS(t4_read_reg(adap,
3075 if (pidx >= nports) {
3076 dev_warn(adap, "MPS Port Index %d >= Nports %d\n",
3081 switch (chip_version) {
3086 case 2: return 3 << (2 * pidx);
3087 case 4: return 1 << pidx;
3093 case 2: return 1 << (2 * pidx);
3098 dev_err(adap, "Need MPS Buffer Group Map for Chip %0x, Nports %d\n",
3099 chip_version, nports);
3104 * t4_get_tp_ch_map - return TP ingress channels associated with a port
3105 * @adapter: the adapter
3106 * @pidx: the port index
3108 * Returns a bitmap indicating which TP Ingress Channels are associated with
3109 * a given Port. Bit i is set if TP Ingress Channel i is used by the Port.
3111 unsigned int t4_get_tp_ch_map(struct adapter *adapter, unsigned int pidx)
3113 unsigned int chip_version = CHELSIO_CHIP_VERSION(adapter->params.chip);
3114 unsigned int nports = 1 << G_NUMPORTS(t4_read_reg(adapter,
3117 if (pidx >= nports) {
3118 dev_warn(adap, "TP Port Index %d >= Nports %d\n",
3123 switch (chip_version) {
3126 /* Note that this happens to be the same values as the MPS
3127 * Buffer Group Map for these Chips. But we replicate the code
3128 * here because they're really separate concepts.
3132 case 2: return 3 << (2 * pidx);
3133 case 4: return 1 << pidx;
3139 case 2: return 1 << pidx;
3144 dev_err(adapter, "Need TP Channel Map for Chip %0x, Nports %d\n",
3145 chip_version, nports);
3150 * t4_get_port_stats - collect port statistics
3151 * @adap: the adapter
3152 * @idx: the port index
3153 * @p: the stats structure to fill
3155 * Collect statistics related to the given port from HW.
3157 void t4_get_port_stats(struct adapter *adap, int idx, struct port_stats *p)
3159 u32 bgmap = t4_get_mps_bg_map(adap, idx);
3160 u32 stat_ctl = t4_read_reg(adap, A_MPS_STAT_CTL);
3162 #define GET_STAT(name) \
3163 t4_read_reg64(adap, \
3164 (is_t4(adap->params.chip) ? \
3165 PORT_REG(idx, A_MPS_PORT_STAT_##name##_L) :\
3166 T5_PORT_REG(idx, A_MPS_PORT_STAT_##name##_L)))
3167 #define GET_STAT_COM(name) t4_read_reg64(adap, A_MPS_STAT_##name##_L)
3169 p->tx_octets = GET_STAT(TX_PORT_BYTES);
3170 p->tx_frames = GET_STAT(TX_PORT_FRAMES);
3171 p->tx_bcast_frames = GET_STAT(TX_PORT_BCAST);
3172 p->tx_mcast_frames = GET_STAT(TX_PORT_MCAST);
3173 p->tx_ucast_frames = GET_STAT(TX_PORT_UCAST);
3174 p->tx_error_frames = GET_STAT(TX_PORT_ERROR);
3175 p->tx_frames_64 = GET_STAT(TX_PORT_64B);
3176 p->tx_frames_65_127 = GET_STAT(TX_PORT_65B_127B);
3177 p->tx_frames_128_255 = GET_STAT(TX_PORT_128B_255B);
3178 p->tx_frames_256_511 = GET_STAT(TX_PORT_256B_511B);
3179 p->tx_frames_512_1023 = GET_STAT(TX_PORT_512B_1023B);
3180 p->tx_frames_1024_1518 = GET_STAT(TX_PORT_1024B_1518B);
3181 p->tx_frames_1519_max = GET_STAT(TX_PORT_1519B_MAX);
3182 p->tx_drop = GET_STAT(TX_PORT_DROP);
3183 p->tx_pause = GET_STAT(TX_PORT_PAUSE);
3184 p->tx_ppp0 = GET_STAT(TX_PORT_PPP0);
3185 p->tx_ppp1 = GET_STAT(TX_PORT_PPP1);
3186 p->tx_ppp2 = GET_STAT(TX_PORT_PPP2);
3187 p->tx_ppp3 = GET_STAT(TX_PORT_PPP3);
3188 p->tx_ppp4 = GET_STAT(TX_PORT_PPP4);
3189 p->tx_ppp5 = GET_STAT(TX_PORT_PPP5);
3190 p->tx_ppp6 = GET_STAT(TX_PORT_PPP6);
3191 p->tx_ppp7 = GET_STAT(TX_PORT_PPP7);
3193 if (CHELSIO_CHIP_VERSION(adap->params.chip) >= CHELSIO_T5) {
3194 if (stat_ctl & F_COUNTPAUSESTATTX) {
3195 p->tx_frames -= p->tx_pause;
3196 p->tx_octets -= p->tx_pause * 64;
3198 if (stat_ctl & F_COUNTPAUSEMCTX)
3199 p->tx_mcast_frames -= p->tx_pause;
3202 p->rx_octets = GET_STAT(RX_PORT_BYTES);
3203 p->rx_frames = GET_STAT(RX_PORT_FRAMES);
3204 p->rx_bcast_frames = GET_STAT(RX_PORT_BCAST);
3205 p->rx_mcast_frames = GET_STAT(RX_PORT_MCAST);
3206 p->rx_ucast_frames = GET_STAT(RX_PORT_UCAST);
3207 p->rx_too_long = GET_STAT(RX_PORT_MTU_ERROR);
3208 p->rx_jabber = GET_STAT(RX_PORT_MTU_CRC_ERROR);
3209 p->rx_fcs_err = GET_STAT(RX_PORT_CRC_ERROR);
3210 p->rx_len_err = GET_STAT(RX_PORT_LEN_ERROR);
3211 p->rx_symbol_err = GET_STAT(RX_PORT_SYM_ERROR);
3212 p->rx_runt = GET_STAT(RX_PORT_LESS_64B);
3213 p->rx_frames_64 = GET_STAT(RX_PORT_64B);
3214 p->rx_frames_65_127 = GET_STAT(RX_PORT_65B_127B);
3215 p->rx_frames_128_255 = GET_STAT(RX_PORT_128B_255B);
3216 p->rx_frames_256_511 = GET_STAT(RX_PORT_256B_511B);
3217 p->rx_frames_512_1023 = GET_STAT(RX_PORT_512B_1023B);
3218 p->rx_frames_1024_1518 = GET_STAT(RX_PORT_1024B_1518B);
3219 p->rx_frames_1519_max = GET_STAT(RX_PORT_1519B_MAX);
3220 p->rx_pause = GET_STAT(RX_PORT_PAUSE);
3221 p->rx_ppp0 = GET_STAT(RX_PORT_PPP0);
3222 p->rx_ppp1 = GET_STAT(RX_PORT_PPP1);
3223 p->rx_ppp2 = GET_STAT(RX_PORT_PPP2);
3224 p->rx_ppp3 = GET_STAT(RX_PORT_PPP3);
3225 p->rx_ppp4 = GET_STAT(RX_PORT_PPP4);
3226 p->rx_ppp5 = GET_STAT(RX_PORT_PPP5);
3227 p->rx_ppp6 = GET_STAT(RX_PORT_PPP6);
3228 p->rx_ppp7 = GET_STAT(RX_PORT_PPP7);
3230 if (CHELSIO_CHIP_VERSION(adap->params.chip) >= CHELSIO_T5) {
3231 if (stat_ctl & F_COUNTPAUSESTATRX) {
3232 p->rx_frames -= p->rx_pause;
3233 p->rx_octets -= p->rx_pause * 64;
3235 if (stat_ctl & F_COUNTPAUSEMCRX)
3236 p->rx_mcast_frames -= p->rx_pause;
3239 p->rx_ovflow0 = (bgmap & 1) ? GET_STAT_COM(RX_BG_0_MAC_DROP_FRAME) : 0;
3240 p->rx_ovflow1 = (bgmap & 2) ? GET_STAT_COM(RX_BG_1_MAC_DROP_FRAME) : 0;
3241 p->rx_ovflow2 = (bgmap & 4) ? GET_STAT_COM(RX_BG_2_MAC_DROP_FRAME) : 0;
3242 p->rx_ovflow3 = (bgmap & 8) ? GET_STAT_COM(RX_BG_3_MAC_DROP_FRAME) : 0;
3243 p->rx_trunc0 = (bgmap & 1) ? GET_STAT_COM(RX_BG_0_MAC_TRUNC_FRAME) : 0;
3244 p->rx_trunc1 = (bgmap & 2) ? GET_STAT_COM(RX_BG_1_MAC_TRUNC_FRAME) : 0;
3245 p->rx_trunc2 = (bgmap & 4) ? GET_STAT_COM(RX_BG_2_MAC_TRUNC_FRAME) : 0;
3246 p->rx_trunc3 = (bgmap & 8) ? GET_STAT_COM(RX_BG_3_MAC_TRUNC_FRAME) : 0;
3253 * t4_get_port_stats_offset - collect port stats relative to a previous snapshot
3254 * @adap: The adapter
3256 * @stats: Current stats to fill
3257 * @offset: Previous stats snapshot
3259 void t4_get_port_stats_offset(struct adapter *adap, int idx,
3260 struct port_stats *stats,
3261 struct port_stats *offset)
3266 t4_get_port_stats(adap, idx, stats);
3267 for (i = 0, s = (u64 *)stats, o = (u64 *)offset;
3268 i < (sizeof(struct port_stats) / sizeof(u64));
3274 * t4_clr_port_stats - clear port statistics
3275 * @adap: the adapter
3276 * @idx: the port index
3278 * Clear HW statistics for the given port.
3280 void t4_clr_port_stats(struct adapter *adap, int idx)
3283 u32 bgmap = t4_get_mps_bg_map(adap, idx);
3286 if (is_t4(adap->params.chip))
3287 port_base_addr = PORT_BASE(idx);
3289 port_base_addr = T5_PORT_BASE(idx);
3291 for (i = A_MPS_PORT_STAT_TX_PORT_BYTES_L;
3292 i <= A_MPS_PORT_STAT_TX_PORT_PPP7_H; i += 8)
3293 t4_write_reg(adap, port_base_addr + i, 0);
3294 for (i = A_MPS_PORT_STAT_RX_PORT_BYTES_L;
3295 i <= A_MPS_PORT_STAT_RX_PORT_LESS_64B_H; i += 8)
3296 t4_write_reg(adap, port_base_addr + i, 0);
3297 for (i = 0; i < 4; i++)
3298 if (bgmap & (1 << i)) {
3300 A_MPS_STAT_RX_BG_0_MAC_DROP_FRAME_L +
3303 A_MPS_STAT_RX_BG_0_MAC_TRUNC_FRAME_L +
3309 * t4_fw_hello - establish communication with FW
3310 * @adap: the adapter
3311 * @mbox: mailbox to use for the FW command
3312 * @evt_mbox: mailbox to receive async FW events
3313 * @master: specifies the caller's willingness to be the device master
3314 * @state: returns the current device state (if non-NULL)
3316 * Issues a command to establish communication with FW. Returns either
3317 * an error (negative integer) or the mailbox of the Master PF.
3319 int t4_fw_hello(struct adapter *adap, unsigned int mbox, unsigned int evt_mbox,
3320 enum dev_master master, enum dev_state *state)
3323 struct fw_hello_cmd c;
3325 unsigned int master_mbox;
3326 int retries = FW_CMD_HELLO_RETRIES;
3329 memset(&c, 0, sizeof(c));
3330 INIT_CMD(c, HELLO, WRITE);
3331 c.err_to_clearinit = cpu_to_be32(
3332 V_FW_HELLO_CMD_MASTERDIS(master == MASTER_CANT) |
3333 V_FW_HELLO_CMD_MASTERFORCE(master == MASTER_MUST) |
3334 V_FW_HELLO_CMD_MBMASTER(master == MASTER_MUST ? mbox :
3335 M_FW_HELLO_CMD_MBMASTER) |
3336 V_FW_HELLO_CMD_MBASYNCNOT(evt_mbox) |
3337 V_FW_HELLO_CMD_STAGE(FW_HELLO_CMD_STAGE_OS) |
3338 F_FW_HELLO_CMD_CLEARINIT);
3341 * Issue the HELLO command to the firmware. If it's not successful
3342 * but indicates that we got a "busy" or "timeout" condition, retry
3343 * the HELLO until we exhaust our retry limit. If we do exceed our
3344 * retry limit, check to see if the firmware left us any error
3345 * information and report that if so ...
3347 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
3348 if (ret != FW_SUCCESS) {
3349 if ((ret == -EBUSY || ret == -ETIMEDOUT) && retries-- > 0)
3351 if (t4_read_reg(adap, A_PCIE_FW) & F_PCIE_FW_ERR)
3352 t4_report_fw_error(adap);
3356 v = be32_to_cpu(c.err_to_clearinit);
3357 master_mbox = G_FW_HELLO_CMD_MBMASTER(v);
3359 if (v & F_FW_HELLO_CMD_ERR)
3360 *state = DEV_STATE_ERR;
3361 else if (v & F_FW_HELLO_CMD_INIT)
3362 *state = DEV_STATE_INIT;
3364 *state = DEV_STATE_UNINIT;
3368 * If we're not the Master PF then we need to wait around for the
3369 * Master PF Driver to finish setting up the adapter.
3371 * Note that we also do this wait if we're a non-Master-capable PF and
3372 * there is no current Master PF; a Master PF may show up momentarily
3373 * and we wouldn't want to fail pointlessly. (This can happen when an
3374 * OS loads lots of different drivers rapidly at the same time). In
3375 * this case, the Master PF returned by the firmware will be
3376 * M_PCIE_FW_MASTER so the test below will work ...
3378 if ((v & (F_FW_HELLO_CMD_ERR | F_FW_HELLO_CMD_INIT)) == 0 &&
3379 master_mbox != mbox) {
3380 int waiting = FW_CMD_HELLO_TIMEOUT;
3383 * Wait for the firmware to either indicate an error or
3384 * initialized state. If we see either of these we bail out
3385 * and report the issue to the caller. If we exhaust the
3386 * "hello timeout" and we haven't exhausted our retries, try
3387 * again. Otherwise bail with a timeout error.
3396 * If neither Error nor Initialialized are indicated
3397 * by the firmware keep waiting till we exaust our
3398 * timeout ... and then retry if we haven't exhausted
3401 pcie_fw = t4_read_reg(adap, A_PCIE_FW);
3402 if (!(pcie_fw & (F_PCIE_FW_ERR | F_PCIE_FW_INIT))) {
3413 * We either have an Error or Initialized condition
3414 * report errors preferentially.
3417 if (pcie_fw & F_PCIE_FW_ERR)
3418 *state = DEV_STATE_ERR;
3419 else if (pcie_fw & F_PCIE_FW_INIT)
3420 *state = DEV_STATE_INIT;
3424 * If we arrived before a Master PF was selected and
3425 * there's not a valid Master PF, grab its identity
3428 if (master_mbox == M_PCIE_FW_MASTER &&
3429 (pcie_fw & F_PCIE_FW_MASTER_VLD))
3430 master_mbox = G_PCIE_FW_MASTER(pcie_fw);
3439 * t4_fw_bye - end communication with FW
3440 * @adap: the adapter
3441 * @mbox: mailbox to use for the FW command
3443 * Issues a command to terminate communication with FW.
3445 int t4_fw_bye(struct adapter *adap, unsigned int mbox)
3447 struct fw_bye_cmd c;
3449 memset(&c, 0, sizeof(c));
3450 INIT_CMD(c, BYE, WRITE);
3451 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
3455 * t4_fw_reset - issue a reset to FW
3456 * @adap: the adapter
3457 * @mbox: mailbox to use for the FW command
3458 * @reset: specifies the type of reset to perform
3460 * Issues a reset command of the specified type to FW.
3462 int t4_fw_reset(struct adapter *adap, unsigned int mbox, int reset)
3464 struct fw_reset_cmd c;
3466 memset(&c, 0, sizeof(c));
3467 INIT_CMD(c, RESET, WRITE);
3468 c.val = cpu_to_be32(reset);
3469 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
3473 * t4_fw_halt - issue a reset/halt to FW and put uP into RESET
3474 * @adap: the adapter
3475 * @mbox: mailbox to use for the FW RESET command (if desired)
3476 * @force: force uP into RESET even if FW RESET command fails
3478 * Issues a RESET command to firmware (if desired) with a HALT indication
3479 * and then puts the microprocessor into RESET state. The RESET command
3480 * will only be issued if a legitimate mailbox is provided (mbox <=
3481 * M_PCIE_FW_MASTER).
3483 * This is generally used in order for the host to safely manipulate the
3484 * adapter without fear of conflicting with whatever the firmware might
3485 * be doing. The only way out of this state is to RESTART the firmware
3488 int t4_fw_halt(struct adapter *adap, unsigned int mbox, int force)
3493 * If a legitimate mailbox is provided, issue a RESET command
3494 * with a HALT indication.
3496 if (mbox <= M_PCIE_FW_MASTER) {
3497 struct fw_reset_cmd c;
3499 memset(&c, 0, sizeof(c));
3500 INIT_CMD(c, RESET, WRITE);
3501 c.val = cpu_to_be32(F_PIORST | F_PIORSTMODE);
3502 c.halt_pkd = cpu_to_be32(F_FW_RESET_CMD_HALT);
3503 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
3507 * Normally we won't complete the operation if the firmware RESET
3508 * command fails but if our caller insists we'll go ahead and put the
3509 * uP into RESET. This can be useful if the firmware is hung or even
3510 * missing ... We'll have to take the risk of putting the uP into
3511 * RESET without the cooperation of firmware in that case.
3513 * We also force the firmware's HALT flag to be on in case we bypassed
3514 * the firmware RESET command above or we're dealing with old firmware
3515 * which doesn't have the HALT capability. This will serve as a flag
3516 * for the incoming firmware to know that it's coming out of a HALT
3517 * rather than a RESET ... if it's new enough to understand that ...
3519 if (ret == 0 || force) {
3520 t4_set_reg_field(adap, A_CIM_BOOT_CFG, F_UPCRST, F_UPCRST);
3521 t4_set_reg_field(adap, A_PCIE_FW, F_PCIE_FW_HALT,
3526 * And we always return the result of the firmware RESET command
3527 * even when we force the uP into RESET ...
3533 * t4_fw_restart - restart the firmware by taking the uP out of RESET
3534 * @adap: the adapter
3535 * @mbox: mailbox to use for the FW RESET command (if desired)
3536 * @reset: if we want to do a RESET to restart things
3538 * Restart firmware previously halted by t4_fw_halt(). On successful
3539 * return the previous PF Master remains as the new PF Master and there
3540 * is no need to issue a new HELLO command, etc.
3542 * We do this in two ways:
3544 * 1. If we're dealing with newer firmware we'll simply want to take
3545 * the chip's microprocessor out of RESET. This will cause the
3546 * firmware to start up from its start vector. And then we'll loop
3547 * until the firmware indicates it's started again (PCIE_FW.HALT
3548 * reset to 0) or we timeout.
3550 * 2. If we're dealing with older firmware then we'll need to RESET
3551 * the chip since older firmware won't recognize the PCIE_FW.HALT
3552 * flag and automatically RESET itself on startup.
3554 int t4_fw_restart(struct adapter *adap, unsigned int mbox, int reset)
3558 * Since we're directing the RESET instead of the firmware
3559 * doing it automatically, we need to clear the PCIE_FW.HALT
3562 t4_set_reg_field(adap, A_PCIE_FW, F_PCIE_FW_HALT, 0);
3565 * If we've been given a valid mailbox, first try to get the
3566 * firmware to do the RESET. If that works, great and we can
3567 * return success. Otherwise, if we haven't been given a
3568 * valid mailbox or the RESET command failed, fall back to
3569 * hitting the chip with a hammer.
3571 if (mbox <= M_PCIE_FW_MASTER) {
3572 t4_set_reg_field(adap, A_CIM_BOOT_CFG, F_UPCRST, 0);
3574 if (t4_fw_reset(adap, mbox,
3575 F_PIORST | F_PIORSTMODE) == 0)
3579 t4_write_reg(adap, A_PL_RST, F_PIORST | F_PIORSTMODE);
3584 t4_set_reg_field(adap, A_CIM_BOOT_CFG, F_UPCRST, 0);
3585 for (ms = 0; ms < FW_CMD_MAX_TIMEOUT; ) {
3586 if (!(t4_read_reg(adap, A_PCIE_FW) & F_PCIE_FW_HALT))
3597 * t4_fl_pkt_align - return the fl packet alignment
3598 * @adap: the adapter
3600 * T4 has a single field to specify the packing and padding boundary.
3601 * T5 onwards has separate fields for this and hence the alignment for
3602 * next packet offset is maximum of these two.
3604 int t4_fl_pkt_align(struct adapter *adap)
3606 u32 sge_control, sge_control2;
3607 unsigned int ingpadboundary, ingpackboundary, fl_align, ingpad_shift;
3609 sge_control = t4_read_reg(adap, A_SGE_CONTROL);
3611 /* T4 uses a single control field to specify both the PCIe Padding and
3612 * Packing Boundary. T5 introduced the ability to specify these
3613 * separately. The actual Ingress Packet Data alignment boundary
3614 * within Packed Buffer Mode is the maximum of these two
3617 if (CHELSIO_CHIP_VERSION(adap->params.chip) <= CHELSIO_T5)
3618 ingpad_shift = X_INGPADBOUNDARY_SHIFT;
3620 ingpad_shift = X_T6_INGPADBOUNDARY_SHIFT;
3622 ingpadboundary = 1 << (G_INGPADBOUNDARY(sge_control) + ingpad_shift);
3624 fl_align = ingpadboundary;
3625 if (!is_t4(adap->params.chip)) {
3626 sge_control2 = t4_read_reg(adap, A_SGE_CONTROL2);
3627 ingpackboundary = G_INGPACKBOUNDARY(sge_control2);
3628 if (ingpackboundary == X_INGPACKBOUNDARY_16B)
3629 ingpackboundary = 16;
3631 ingpackboundary = 1 << (ingpackboundary +
3632 X_INGPACKBOUNDARY_SHIFT);
3634 fl_align = max(ingpadboundary, ingpackboundary);
3640 * t4_fixup_host_params_compat - fix up host-dependent parameters
3641 * @adap: the adapter
3642 * @page_size: the host's Base Page Size
3643 * @cache_line_size: the host's Cache Line Size
3644 * @chip_compat: maintain compatibility with designated chip
3646 * Various registers in the chip contain values which are dependent on the
3647 * host's Base Page and Cache Line Sizes. This function will fix all of
3648 * those registers with the appropriate values as passed in ...
3650 * @chip_compat is used to limit the set of changes that are made
3651 * to be compatible with the indicated chip release. This is used by
3652 * drivers to maintain compatibility with chip register settings when
3653 * the drivers haven't [yet] been updated with new chip support.
3655 int t4_fixup_host_params_compat(struct adapter *adap,
3656 unsigned int page_size,
3657 unsigned int cache_line_size,
3658 enum chip_type chip_compat)
3660 unsigned int page_shift = cxgbe_fls(page_size) - 1;
3661 unsigned int sge_hps = page_shift - 10;
3662 unsigned int stat_len = cache_line_size > 64 ? 128 : 64;
3663 unsigned int fl_align = cache_line_size < 32 ? 32 : cache_line_size;
3664 unsigned int fl_align_log = cxgbe_fls(fl_align) - 1;
3666 t4_write_reg(adap, A_SGE_HOST_PAGE_SIZE,
3667 V_HOSTPAGESIZEPF0(sge_hps) |
3668 V_HOSTPAGESIZEPF1(sge_hps) |
3669 V_HOSTPAGESIZEPF2(sge_hps) |
3670 V_HOSTPAGESIZEPF3(sge_hps) |
3671 V_HOSTPAGESIZEPF4(sge_hps) |
3672 V_HOSTPAGESIZEPF5(sge_hps) |
3673 V_HOSTPAGESIZEPF6(sge_hps) |
3674 V_HOSTPAGESIZEPF7(sge_hps));
3676 if (is_t4(adap->params.chip) || is_t4(chip_compat))
3677 t4_set_reg_field(adap, A_SGE_CONTROL,
3678 V_INGPADBOUNDARY(M_INGPADBOUNDARY) |
3679 F_EGRSTATUSPAGESIZE,
3680 V_INGPADBOUNDARY(fl_align_log -
3681 X_INGPADBOUNDARY_SHIFT) |
3682 V_EGRSTATUSPAGESIZE(stat_len != 64));
3684 unsigned int pack_align;
3685 unsigned int ingpad, ingpack;
3686 unsigned int pcie_cap;
3689 * T5 introduced the separation of the Free List Padding and
3690 * Packing Boundaries. Thus, we can select a smaller Padding
3691 * Boundary to avoid uselessly chewing up PCIe Link and Memory
3692 * Bandwidth, and use a Packing Boundary which is large enough
3693 * to avoid false sharing between CPUs, etc.
3695 * For the PCI Link, the smaller the Padding Boundary the
3696 * better. For the Memory Controller, a smaller Padding
3697 * Boundary is better until we cross under the Memory Line
3698 * Size (the minimum unit of transfer to/from Memory). If we
3699 * have a Padding Boundary which is smaller than the Memory
3700 * Line Size, that'll involve a Read-Modify-Write cycle on the
3701 * Memory Controller which is never good.
3704 /* We want the Packing Boundary to be based on the Cache Line
3705 * Size in order to help avoid False Sharing performance
3706 * issues between CPUs, etc. We also want the Packing
3707 * Boundary to incorporate the PCI-E Maximum Payload Size. We
3708 * get best performance when the Packing Boundary is a
3709 * multiple of the Maximum Payload Size.
3711 pack_align = fl_align;
3712 pcie_cap = t4_os_find_pci_capability(adap, PCI_CAP_ID_EXP);
3714 unsigned int mps, mps_log;
3717 /* The PCIe Device Control Maximum Payload Size field
3718 * [bits 7:5] encodes sizes as powers of 2 starting at
3721 t4_os_pci_read_cfg2(adap, pcie_cap + PCI_EXP_DEVCTL,
3723 mps_log = ((devctl & PCI_EXP_DEVCTL_PAYLOAD) >> 5) + 7;
3725 if (mps > pack_align)
3730 * N.B. T5 has a different interpretation of the "0" value for
3731 * the Packing Boundary. This corresponds to 16 bytes instead
3732 * of the expected 32 bytes. We never have a Packing Boundary
3733 * less than 32 bytes so we can't use that special value but
3734 * on the other hand, if we wanted 32 bytes, the best we can
3735 * really do is 64 bytes ...
3737 if (pack_align <= 16) {
3738 ingpack = X_INGPACKBOUNDARY_16B;
3740 } else if (pack_align == 32) {
3741 ingpack = X_INGPACKBOUNDARY_64B;
3744 unsigned int pack_align_log = cxgbe_fls(pack_align) - 1;
3746 ingpack = pack_align_log - X_INGPACKBOUNDARY_SHIFT;
3747 fl_align = pack_align;
3750 /* Use the smallest Ingress Padding which isn't smaller than
3751 * the Memory Controller Read/Write Size. We'll take that as
3752 * being 8 bytes since we don't know of any system with a
3753 * wider Memory Controller Bus Width.
3755 if (is_t5(adap->params.chip))
3756 ingpad = X_INGPADBOUNDARY_32B;
3758 ingpad = X_T6_INGPADBOUNDARY_8B;
3759 t4_set_reg_field(adap, A_SGE_CONTROL,
3760 V_INGPADBOUNDARY(M_INGPADBOUNDARY) |
3761 F_EGRSTATUSPAGESIZE,
3762 V_INGPADBOUNDARY(ingpad) |
3763 V_EGRSTATUSPAGESIZE(stat_len != 64));
3764 t4_set_reg_field(adap, A_SGE_CONTROL2,
3765 V_INGPACKBOUNDARY(M_INGPACKBOUNDARY),
3766 V_INGPACKBOUNDARY(ingpack));
3770 * Adjust various SGE Free List Host Buffer Sizes.
3772 * The first four entries are:
3776 * 2: Buffer size corresponding to 1500 byte MTU (unpacked mode)
3777 * 3: Buffer size corresponding to 9000 byte MTU (unpacked mode)
3779 * For the single-MTU buffers in unpacked mode we need to include
3780 * space for the SGE Control Packet Shift, 14 byte Ethernet header,
3781 * possible 4 byte VLAN tag, all rounded up to the next Ingress Packet
3782 * Padding boundary. All of these are accommodated in the Factory
3783 * Default Firmware Configuration File but we need to adjust it for
3784 * this host's cache line size.
3786 t4_write_reg(adap, A_SGE_FL_BUFFER_SIZE0, page_size);
3787 t4_write_reg(adap, A_SGE_FL_BUFFER_SIZE2,
3788 (t4_read_reg(adap, A_SGE_FL_BUFFER_SIZE2) + fl_align - 1)
3790 t4_write_reg(adap, A_SGE_FL_BUFFER_SIZE3,
3791 (t4_read_reg(adap, A_SGE_FL_BUFFER_SIZE3) + fl_align - 1)
3794 t4_write_reg(adap, A_ULP_RX_TDDP_PSZ, V_HPZ0(page_shift - 12));
3800 * t4_fixup_host_params - fix up host-dependent parameters (T4 compatible)
3801 * @adap: the adapter
3802 * @page_size: the host's Base Page Size
3803 * @cache_line_size: the host's Cache Line Size
3805 * Various registers in T4 contain values which are dependent on the
3806 * host's Base Page and Cache Line Sizes. This function will fix all of
3807 * those registers with the appropriate values as passed in ...
3809 * This routine makes changes which are compatible with T4 chips.
3811 int t4_fixup_host_params(struct adapter *adap, unsigned int page_size,
3812 unsigned int cache_line_size)
3814 return t4_fixup_host_params_compat(adap, page_size, cache_line_size,
3819 * t4_fw_initialize - ask FW to initialize the device
3820 * @adap: the adapter
3821 * @mbox: mailbox to use for the FW command
3823 * Issues a command to FW to partially initialize the device. This
3824 * performs initialization that generally doesn't depend on user input.
3826 int t4_fw_initialize(struct adapter *adap, unsigned int mbox)
3828 struct fw_initialize_cmd c;
3830 memset(&c, 0, sizeof(c));
3831 INIT_CMD(c, INITIALIZE, WRITE);
3832 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
3836 * t4_query_params_rw - query FW or device parameters
3837 * @adap: the adapter
3838 * @mbox: mailbox to use for the FW command
3841 * @nparams: the number of parameters
3842 * @params: the parameter names
3843 * @val: the parameter values
3844 * @rw: Write and read flag
3846 * Reads the value of FW or device parameters. Up to 7 parameters can be
3849 static int t4_query_params_rw(struct adapter *adap, unsigned int mbox,
3850 unsigned int pf, unsigned int vf,
3851 unsigned int nparams, const u32 *params,
3856 struct fw_params_cmd c;
3857 __be32 *p = &c.param[0].mnem;
3862 memset(&c, 0, sizeof(c));
3863 c.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_PARAMS_CMD) |
3864 F_FW_CMD_REQUEST | F_FW_CMD_READ |
3865 V_FW_PARAMS_CMD_PFN(pf) |
3866 V_FW_PARAMS_CMD_VFN(vf));
3867 c.retval_len16 = cpu_to_be32(FW_LEN16(c));
3869 for (i = 0; i < nparams; i++) {
3870 *p++ = cpu_to_be32(*params++);
3872 *p = cpu_to_be32(*(val + i));
3876 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
3878 for (i = 0, p = &c.param[0].val; i < nparams; i++, p += 2)
3879 *val++ = be32_to_cpu(*p);
3883 int t4_query_params(struct adapter *adap, unsigned int mbox, unsigned int pf,
3884 unsigned int vf, unsigned int nparams, const u32 *params,
3887 return t4_query_params_rw(adap, mbox, pf, vf, nparams, params, val, 0);
3891 * t4_set_params_timeout - sets FW or device parameters
3892 * @adap: the adapter
3893 * @mbox: mailbox to use for the FW command
3896 * @nparams: the number of parameters
3897 * @params: the parameter names
3898 * @val: the parameter values
3899 * @timeout: the timeout time
3901 * Sets the value of FW or device parameters. Up to 7 parameters can be
3902 * specified at once.
3904 int t4_set_params_timeout(struct adapter *adap, unsigned int mbox,
3905 unsigned int pf, unsigned int vf,
3906 unsigned int nparams, const u32 *params,
3907 const u32 *val, int timeout)
3909 struct fw_params_cmd c;
3910 __be32 *p = &c.param[0].mnem;
3915 memset(&c, 0, sizeof(c));
3916 c.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_PARAMS_CMD) |
3917 F_FW_CMD_REQUEST | F_FW_CMD_WRITE |
3918 V_FW_PARAMS_CMD_PFN(pf) |
3919 V_FW_PARAMS_CMD_VFN(vf));
3920 c.retval_len16 = cpu_to_be32(FW_LEN16(c));
3923 *p++ = cpu_to_be32(*params++);
3924 *p++ = cpu_to_be32(*val++);
3927 return t4_wr_mbox_timeout(adap, mbox, &c, sizeof(c), NULL, timeout);
3930 int t4_set_params(struct adapter *adap, unsigned int mbox, unsigned int pf,
3931 unsigned int vf, unsigned int nparams, const u32 *params,
3934 return t4_set_params_timeout(adap, mbox, pf, vf, nparams, params, val,
3935 FW_CMD_MAX_TIMEOUT);
3939 * t4_alloc_vi_func - allocate a virtual interface
3940 * @adap: the adapter
3941 * @mbox: mailbox to use for the FW command
3942 * @port: physical port associated with the VI
3943 * @pf: the PF owning the VI
3944 * @vf: the VF owning the VI
3945 * @nmac: number of MAC addresses needed (1 to 5)
3946 * @mac: the MAC addresses of the VI
3947 * @rss_size: size of RSS table slice associated with this VI
3948 * @portfunc: which Port Application Function MAC Address is desired
3949 * @idstype: Intrusion Detection Type
3951 * Allocates a virtual interface for the given physical port. If @mac is
3952 * not %NULL it contains the MAC addresses of the VI as assigned by FW.
3953 * @mac should be large enough to hold @nmac Ethernet addresses, they are
3954 * stored consecutively so the space needed is @nmac * 6 bytes.
3955 * Returns a negative error number or the non-negative VI id.
3957 int t4_alloc_vi_func(struct adapter *adap, unsigned int mbox,
3958 unsigned int port, unsigned int pf, unsigned int vf,
3959 unsigned int nmac, u8 *mac, unsigned int *rss_size,
3960 unsigned int portfunc, unsigned int idstype)
3965 memset(&c, 0, sizeof(c));
3966 c.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_VI_CMD) | F_FW_CMD_REQUEST |
3967 F_FW_CMD_WRITE | F_FW_CMD_EXEC |
3968 V_FW_VI_CMD_PFN(pf) | V_FW_VI_CMD_VFN(vf));
3969 c.alloc_to_len16 = cpu_to_be32(F_FW_VI_CMD_ALLOC | FW_LEN16(c));
3970 c.type_to_viid = cpu_to_be16(V_FW_VI_CMD_TYPE(idstype) |
3971 V_FW_VI_CMD_FUNC(portfunc));
3972 c.portid_pkd = V_FW_VI_CMD_PORTID(port);
3975 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
3980 memcpy(mac, c.mac, sizeof(c.mac));
3983 memcpy(mac + 24, c.nmac3, sizeof(c.nmac3));
3986 memcpy(mac + 18, c.nmac2, sizeof(c.nmac2));
3989 memcpy(mac + 12, c.nmac1, sizeof(c.nmac1));
3992 memcpy(mac + 6, c.nmac0, sizeof(c.nmac0));
3997 *rss_size = G_FW_VI_CMD_RSSSIZE(be16_to_cpu(c.norss_rsssize));
3998 return G_FW_VI_CMD_VIID(cpu_to_be16(c.type_to_viid));
4002 * t4_alloc_vi - allocate an [Ethernet Function] virtual interface
4003 * @adap: the adapter
4004 * @mbox: mailbox to use for the FW command
4005 * @port: physical port associated with the VI
4006 * @pf: the PF owning the VI
4007 * @vf: the VF owning the VI
4008 * @nmac: number of MAC addresses needed (1 to 5)
4009 * @mac: the MAC addresses of the VI
4010 * @rss_size: size of RSS table slice associated with this VI
4012 * Backwards compatible and convieniance routine to allocate a Virtual
4013 * Interface with a Ethernet Port Application Function and Intrustion
4014 * Detection System disabled.
4016 int t4_alloc_vi(struct adapter *adap, unsigned int mbox, unsigned int port,
4017 unsigned int pf, unsigned int vf, unsigned int nmac, u8 *mac,
4018 unsigned int *rss_size)
4020 return t4_alloc_vi_func(adap, mbox, port, pf, vf, nmac, mac, rss_size,
4025 * t4_free_vi - free a virtual interface
4026 * @adap: the adapter
4027 * @mbox: mailbox to use for the FW command
4028 * @pf: the PF owning the VI
4029 * @vf: the VF owning the VI
4030 * @viid: virtual interface identifiler
4032 * Free a previously allocated virtual interface.
4034 int t4_free_vi(struct adapter *adap, unsigned int mbox, unsigned int pf,
4035 unsigned int vf, unsigned int viid)
4039 memset(&c, 0, sizeof(c));
4040 c.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_VI_CMD) | F_FW_CMD_REQUEST |
4041 F_FW_CMD_EXEC | V_FW_VI_CMD_PFN(pf) |
4042 V_FW_VI_CMD_VFN(vf));
4043 c.alloc_to_len16 = cpu_to_be32(F_FW_VI_CMD_FREE | FW_LEN16(c));
4044 c.type_to_viid = cpu_to_be16(V_FW_VI_CMD_VIID(viid));
4046 return t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
4050 * t4_set_rxmode - set Rx properties of a virtual interface
4051 * @adap: the adapter
4052 * @mbox: mailbox to use for the FW command
4054 * @mtu: the new MTU or -1
4055 * @promisc: 1 to enable promiscuous mode, 0 to disable it, -1 no change
4056 * @all_multi: 1 to enable all-multi mode, 0 to disable it, -1 no change
4057 * @bcast: 1 to enable broadcast Rx, 0 to disable it, -1 no change
4058 * @vlanex: 1 to enable hardware VLAN Tag extraction, 0 to disable it,
4060 * @sleep_ok: if true we may sleep while awaiting command completion
4062 * Sets Rx properties of a virtual interface.
4064 int t4_set_rxmode(struct adapter *adap, unsigned int mbox, unsigned int viid,
4065 int mtu, int promisc, int all_multi, int bcast, int vlanex,
4068 struct fw_vi_rxmode_cmd c;
4070 /* convert to FW values */
4072 mtu = M_FW_VI_RXMODE_CMD_MTU;
4074 promisc = M_FW_VI_RXMODE_CMD_PROMISCEN;
4076 all_multi = M_FW_VI_RXMODE_CMD_ALLMULTIEN;
4078 bcast = M_FW_VI_RXMODE_CMD_BROADCASTEN;
4080 vlanex = M_FW_VI_RXMODE_CMD_VLANEXEN;
4082 memset(&c, 0, sizeof(c));
4083 c.op_to_viid = cpu_to_be32(V_FW_CMD_OP(FW_VI_RXMODE_CMD) |
4084 F_FW_CMD_REQUEST | F_FW_CMD_WRITE |
4085 V_FW_VI_RXMODE_CMD_VIID(viid));
4086 c.retval_len16 = cpu_to_be32(FW_LEN16(c));
4087 c.mtu_to_vlanexen = cpu_to_be32(V_FW_VI_RXMODE_CMD_MTU(mtu) |
4088 V_FW_VI_RXMODE_CMD_PROMISCEN(promisc) |
4089 V_FW_VI_RXMODE_CMD_ALLMULTIEN(all_multi) |
4090 V_FW_VI_RXMODE_CMD_BROADCASTEN(bcast) |
4091 V_FW_VI_RXMODE_CMD_VLANEXEN(vlanex));
4092 return t4_wr_mbox_meat(adap, mbox, &c, sizeof(c), NULL, sleep_ok);
4096 * t4_change_mac - modifies the exact-match filter for a MAC address
4097 * @adap: the adapter
4098 * @mbox: mailbox to use for the FW command
4100 * @idx: index of existing filter for old value of MAC address, or -1
4101 * @addr: the new MAC address value
4102 * @persist: whether a new MAC allocation should be persistent
4103 * @add_smt: if true also add the address to the HW SMT
4105 * Modifies an exact-match filter and sets it to the new MAC address if
4106 * @idx >= 0, or adds the MAC address to a new filter if @idx < 0. In the
4107 * latter case the address is added persistently if @persist is %true.
4109 * Note that in general it is not possible to modify the value of a given
4110 * filter so the generic way to modify an address filter is to free the one
4111 * being used by the old address value and allocate a new filter for the
4112 * new address value.
4114 * Returns a negative error number or the index of the filter with the new
4115 * MAC value. Note that this index may differ from @idx.
4117 int t4_change_mac(struct adapter *adap, unsigned int mbox, unsigned int viid,
4118 int idx, const u8 *addr, bool persist, bool add_smt)
4121 struct fw_vi_mac_cmd c;
4122 struct fw_vi_mac_exact *p = c.u.exact;
4123 int max_mac_addr = adap->params.arch.mps_tcam_size;
4125 if (idx < 0) /* new allocation */
4126 idx = persist ? FW_VI_MAC_ADD_PERSIST_MAC : FW_VI_MAC_ADD_MAC;
4127 mode = add_smt ? FW_VI_MAC_SMT_AND_MPSTCAM : FW_VI_MAC_MPS_TCAM_ENTRY;
4129 memset(&c, 0, sizeof(c));
4130 c.op_to_viid = cpu_to_be32(V_FW_CMD_OP(FW_VI_MAC_CMD) |
4131 F_FW_CMD_REQUEST | F_FW_CMD_WRITE |
4132 V_FW_VI_MAC_CMD_VIID(viid));
4133 c.freemacs_to_len16 = cpu_to_be32(V_FW_CMD_LEN16(1));
4134 p->valid_to_idx = cpu_to_be16(F_FW_VI_MAC_CMD_VALID |
4135 V_FW_VI_MAC_CMD_SMAC_RESULT(mode) |
4136 V_FW_VI_MAC_CMD_IDX(idx));
4137 memcpy(p->macaddr, addr, sizeof(p->macaddr));
4139 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
4141 ret = G_FW_VI_MAC_CMD_IDX(be16_to_cpu(p->valid_to_idx));
4142 if (ret >= max_mac_addr)
4149 * t4_enable_vi_params - enable/disable a virtual interface
4150 * @adap: the adapter
4151 * @mbox: mailbox to use for the FW command
4153 * @rx_en: 1=enable Rx, 0=disable Rx
4154 * @tx_en: 1=enable Tx, 0=disable Tx
4155 * @dcb_en: 1=enable delivery of Data Center Bridging messages.
4157 * Enables/disables a virtual interface. Note that setting DCB Enable
4158 * only makes sense when enabling a Virtual Interface ...
4160 int t4_enable_vi_params(struct adapter *adap, unsigned int mbox,
4161 unsigned int viid, bool rx_en, bool tx_en, bool dcb_en)
4163 struct fw_vi_enable_cmd c;
4165 memset(&c, 0, sizeof(c));
4166 c.op_to_viid = cpu_to_be32(V_FW_CMD_OP(FW_VI_ENABLE_CMD) |
4167 F_FW_CMD_REQUEST | F_FW_CMD_EXEC |
4168 V_FW_VI_ENABLE_CMD_VIID(viid));
4169 c.ien_to_len16 = cpu_to_be32(V_FW_VI_ENABLE_CMD_IEN(rx_en) |
4170 V_FW_VI_ENABLE_CMD_EEN(tx_en) |
4171 V_FW_VI_ENABLE_CMD_DCB_INFO(dcb_en) |
4173 return t4_wr_mbox_ns(adap, mbox, &c, sizeof(c), NULL);
4177 * t4_enable_vi - enable/disable a virtual interface
4178 * @adap: the adapter
4179 * @mbox: mailbox to use for the FW command
4181 * @rx_en: 1=enable Rx, 0=disable Rx
4182 * @tx_en: 1=enable Tx, 0=disable Tx
4184 * Enables/disables a virtual interface. Note that setting DCB Enable
4185 * only makes sense when enabling a Virtual Interface ...
4187 int t4_enable_vi(struct adapter *adap, unsigned int mbox, unsigned int viid,
4188 bool rx_en, bool tx_en)
4190 return t4_enable_vi_params(adap, mbox, viid, rx_en, tx_en, 0);
4194 * t4_iq_start_stop - enable/disable an ingress queue and its FLs
4195 * @adap: the adapter
4196 * @mbox: mailbox to use for the FW command
4197 * @start: %true to enable the queues, %false to disable them
4198 * @pf: the PF owning the queues
4199 * @vf: the VF owning the queues
4200 * @iqid: ingress queue id
4201 * @fl0id: FL0 queue id or 0xffff if no attached FL0
4202 * @fl1id: FL1 queue id or 0xffff if no attached FL1
4204 * Starts or stops an ingress queue and its associated FLs, if any.
4206 int t4_iq_start_stop(struct adapter *adap, unsigned int mbox, bool start,
4207 unsigned int pf, unsigned int vf, unsigned int iqid,
4208 unsigned int fl0id, unsigned int fl1id)
4212 memset(&c, 0, sizeof(c));
4213 c.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_IQ_CMD) | F_FW_CMD_REQUEST |
4214 F_FW_CMD_EXEC | V_FW_IQ_CMD_PFN(pf) |
4215 V_FW_IQ_CMD_VFN(vf));
4216 c.alloc_to_len16 = cpu_to_be32(V_FW_IQ_CMD_IQSTART(start) |
4217 V_FW_IQ_CMD_IQSTOP(!start) |
4219 c.iqid = cpu_to_be16(iqid);
4220 c.fl0id = cpu_to_be16(fl0id);
4221 c.fl1id = cpu_to_be16(fl1id);
4222 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
4226 * t4_iq_free - free an ingress queue and its FLs
4227 * @adap: the adapter
4228 * @mbox: mailbox to use for the FW command
4229 * @pf: the PF owning the queues
4230 * @vf: the VF owning the queues
4231 * @iqtype: the ingress queue type (FW_IQ_TYPE_FL_INT_CAP, etc.)
4232 * @iqid: ingress queue id
4233 * @fl0id: FL0 queue id or 0xffff if no attached FL0
4234 * @fl1id: FL1 queue id or 0xffff if no attached FL1
4236 * Frees an ingress queue and its associated FLs, if any.
4238 int t4_iq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
4239 unsigned int vf, unsigned int iqtype, unsigned int iqid,
4240 unsigned int fl0id, unsigned int fl1id)
4244 memset(&c, 0, sizeof(c));
4245 c.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_IQ_CMD) | F_FW_CMD_REQUEST |
4246 F_FW_CMD_EXEC | V_FW_IQ_CMD_PFN(pf) |
4247 V_FW_IQ_CMD_VFN(vf));
4248 c.alloc_to_len16 = cpu_to_be32(F_FW_IQ_CMD_FREE | FW_LEN16(c));
4249 c.type_to_iqandstindex = cpu_to_be32(V_FW_IQ_CMD_TYPE(iqtype));
4250 c.iqid = cpu_to_be16(iqid);
4251 c.fl0id = cpu_to_be16(fl0id);
4252 c.fl1id = cpu_to_be16(fl1id);
4253 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
4257 * t4_eth_eq_free - free an Ethernet egress queue
4258 * @adap: the adapter
4259 * @mbox: mailbox to use for the FW command
4260 * @pf: the PF owning the queue
4261 * @vf: the VF owning the queue
4262 * @eqid: egress queue id
4264 * Frees an Ethernet egress queue.
4266 int t4_eth_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
4267 unsigned int vf, unsigned int eqid)
4269 struct fw_eq_eth_cmd c;
4271 memset(&c, 0, sizeof(c));
4272 c.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_EQ_ETH_CMD) |
4273 F_FW_CMD_REQUEST | F_FW_CMD_EXEC |
4274 V_FW_EQ_ETH_CMD_PFN(pf) |
4275 V_FW_EQ_ETH_CMD_VFN(vf));
4276 c.alloc_to_len16 = cpu_to_be32(F_FW_EQ_ETH_CMD_FREE | FW_LEN16(c));
4277 c.eqid_pkd = cpu_to_be32(V_FW_EQ_ETH_CMD_EQID(eqid));
4278 return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
4281 /* Return the highest speed set in the port capabilities, in Mb/s. */
4282 static unsigned int fwcap_to_speed(fw_port_cap32_t caps)
4284 #define TEST_SPEED_RETURN(__caps_speed, __speed) \
4286 if (caps & FW_PORT_CAP32_SPEED_##__caps_speed) \
4290 TEST_SPEED_RETURN(100G, 100000);
4291 TEST_SPEED_RETURN(50G, 50000);
4292 TEST_SPEED_RETURN(40G, 40000);
4293 TEST_SPEED_RETURN(25G, 25000);
4294 TEST_SPEED_RETURN(10G, 10000);
4295 TEST_SPEED_RETURN(1G, 1000);
4296 TEST_SPEED_RETURN(100M, 100);
4298 #undef TEST_SPEED_RETURN
4304 * t4_handle_fw_rpl - process a FW reply message
4305 * @adap: the adapter
4306 * @rpl: start of the FW message
4308 * Processes a FW message, such as link state change messages.
4310 int t4_handle_fw_rpl(struct adapter *adap, const __be64 *rpl)
4312 u8 opcode = *(const u8 *)rpl;
4315 * This might be a port command ... this simplifies the following
4316 * conditionals ... We can get away with pre-dereferencing
4317 * action_to_len16 because it's in the first 16 bytes and all messages
4318 * will be at least that long.
4320 const struct fw_port_cmd *p = (const void *)rpl;
4321 unsigned int action =
4322 G_FW_PORT_CMD_ACTION(be32_to_cpu(p->action_to_len16));
4324 if (opcode == FW_PORT_CMD && action == FW_PORT_ACTION_GET_PORT_INFO) {
4325 /* link/module state change message */
4326 unsigned int speed = 0, fc = 0, i;
4327 int chan = G_FW_PORT_CMD_PORTID(be32_to_cpu(p->op_to_portid));
4328 struct port_info *pi = NULL;
4329 struct link_config *lc;
4330 u32 stat = be32_to_cpu(p->u.info.lstatus_to_modtype);
4331 int link_ok = (stat & F_FW_PORT_CMD_LSTATUS) != 0;
4332 u32 mod = G_FW_PORT_CMD_MODTYPE(stat);
4335 fc = fwcap_to_cc_pause(stat);
4336 fec = fwcap_to_cc_fec(stat);
4338 if (stat & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_100M))
4339 speed = ETH_SPEED_NUM_100M;
4340 else if (stat & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_1G))
4341 speed = ETH_SPEED_NUM_1G;
4342 else if (stat & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_10G))
4343 speed = ETH_SPEED_NUM_10G;
4344 else if (stat & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_25G))
4345 speed = ETH_SPEED_NUM_25G;
4346 else if (stat & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_40G))
4347 speed = ETH_SPEED_NUM_40G;
4348 else if (stat & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_100G))
4349 speed = ETH_SPEED_NUM_100G;
4351 for_each_port(adap, i) {
4352 pi = adap2pinfo(adap, i);
4353 if (pi->tx_chan == chan)
4358 if (mod != pi->mod_type) {
4361 t4_os_portmod_changed(adap, i);
4363 if (link_ok != lc->link_ok || speed != lc->speed ||
4364 fc != lc->fc || fec != lc->fec) { /* something changed */
4365 if (!link_ok && lc->link_ok) {
4366 static const char * const reason[] = {
4369 "Auto-negotiation Failure",
4371 "Insufficient Airflow",
4372 "Unable To Determine Reason",
4373 "No RX Signal Detected",
4376 unsigned int rc = G_FW_PORT_CMD_LINKDNRC(stat);
4378 dev_warn(adap, "Port %d link down, reason: %s\n",
4381 lc->link_ok = link_ok;
4385 lc->pcaps = be16_to_cpu(p->u.info.pcap);
4386 lc->acaps = be16_to_cpu(p->u.info.acap) & ADVERT_MASK;
4387 if (lc->acaps & FW_PORT_CAP32_ANEG) {
4388 lc->autoneg = AUTONEG_ENABLE;
4390 /* When Autoneg is disabled, user needs to set
4394 lc->requested_speed =
4395 be16_to_cpu(p->u.info.acap);
4396 lc->requested_speed =
4397 fwcap_to_speed(lc->requested_speed);
4398 lc->autoneg = AUTONEG_DISABLE;
4402 dev_warn(adap, "Unknown firmware reply %d\n", opcode);
4408 void t4_reset_link_config(struct adapter *adap, int idx)
4410 struct port_info *pi = adap2pinfo(adap, idx);
4411 struct link_config *lc = &pi->link_cfg;
4414 lc->requested_speed = 0;
4415 lc->requested_fc = 0;
4421 * init_link_config - initialize a link's SW state
4422 * @lc: structure holding the link state
4423 * @pcaps: link Port Capabilities
4424 * @acaps: link current Advertised Port Capabilities
4426 * Initializes the SW state maintained for each link, including the link's
4427 * capabilities and default speed/flow-control/autonegotiation settings.
4429 static void init_link_config(struct link_config *lc, unsigned int pcaps,
4433 lc->requested_speed = 0;
4435 lc->requested_fc = 0;
4439 * For Forward Error Control, we default to whatever the Firmware
4440 * tells us the Link is currently advertising.
4442 lc->auto_fec = fwcap_to_cc_fec(acaps);
4443 lc->requested_fec = FEC_AUTO;
4444 lc->fec = lc->auto_fec;
4446 if (lc->pcaps & FW_PORT_CAP32_ANEG) {
4447 lc->acaps = lc->pcaps & ADVERT_MASK;
4448 lc->autoneg = AUTONEG_ENABLE;
4449 lc->requested_fc |= PAUSE_AUTONEG;
4452 lc->autoneg = AUTONEG_DISABLE;
4457 * t4_wait_dev_ready - wait till to reads of registers work
4459 * Right after the device is RESET is can take a small amount of time
4460 * for it to respond to register reads. Until then, all reads will
4461 * return either 0xff...ff or 0xee...ee. Return an error if reads
4462 * don't work within a reasonable time frame.
4464 static int t4_wait_dev_ready(struct adapter *adapter)
4468 whoami = t4_read_reg(adapter, A_PL_WHOAMI);
4470 if (whoami != 0xffffffff && whoami != X_CIM_PF_NOACCESS)
4474 whoami = t4_read_reg(adapter, A_PL_WHOAMI);
4475 if (whoami != 0xffffffff && whoami != X_CIM_PF_NOACCESS)
4478 dev_err(adapter, "Device didn't become ready for access, whoami = %#x\n",
4484 u32 vendor_and_model_id;
4488 int t4_get_flash_params(struct adapter *adapter)
4491 * Table for non-Numonix supported flash parts. Numonix parts are left
4492 * to the preexisting well-tested code. All flash parts have 64KB
4495 static struct flash_desc supported_flash[] = {
4496 { 0x00150201, 4 << 20 }, /* Spansion 4MB S25FL032P */
4501 unsigned int part, manufacturer;
4502 unsigned int density, size;
4505 * Issue a Read ID Command to the Flash part. We decode supported
4506 * Flash parts and their sizes from this. There's a newer Query
4507 * Command which can retrieve detailed geometry information but
4508 * many Flash parts don't support it.
4510 ret = sf1_write(adapter, 1, 1, 0, SF_RD_ID);
4512 ret = sf1_read(adapter, 3, 0, 1, &flashid);
4513 t4_write_reg(adapter, A_SF_OP, 0); /* unlock SF */
4517 for (part = 0; part < ARRAY_SIZE(supported_flash); part++) {
4518 if (supported_flash[part].vendor_and_model_id == flashid) {
4519 adapter->params.sf_size =
4520 supported_flash[part].size_mb;
4521 adapter->params.sf_nsec =
4522 adapter->params.sf_size / SF_SEC_SIZE;
4527 manufacturer = flashid & 0xff;
4528 switch (manufacturer) {
4529 case 0x20: { /* Micron/Numonix */
4531 * This Density -> Size decoding table is taken from Micron
4534 density = (flashid >> 16) & 0xff;
4537 size = 1 << 20; /* 1MB */
4540 size = 1 << 21; /* 2MB */
4543 size = 1 << 22; /* 4MB */
4546 size = 1 << 23; /* 8MB */
4549 size = 1 << 24; /* 16MB */
4552 size = 1 << 25; /* 32MB */
4555 size = 1 << 26; /* 64MB */
4558 size = 1 << 27; /* 128MB */
4561 size = 1 << 28; /* 256MB */
4564 dev_err(adapter, "Micron Flash Part has bad size, ID = %#x, Density code = %#x\n",
4569 adapter->params.sf_size = size;
4570 adapter->params.sf_nsec = size / SF_SEC_SIZE;
4574 dev_err(adapter, "Unsupported Flash Part, ID = %#x\n", flashid);
4580 * We should reject adapters with FLASHes which are too small. So, emit
4583 if (adapter->params.sf_size < FLASH_MIN_SIZE)
4584 dev_warn(adapter, "WARNING: Flash Part ID %#x, size %#x < %#x\n",
4585 flashid, adapter->params.sf_size, FLASH_MIN_SIZE);
4590 static void set_pcie_completion_timeout(struct adapter *adapter,
4596 pcie_cap = t4_os_find_pci_capability(adapter, PCI_CAP_ID_EXP);
4598 t4_os_pci_read_cfg2(adapter, pcie_cap + PCI_EXP_DEVCTL2, &val);
4601 t4_os_pci_write_cfg2(adapter, pcie_cap + PCI_EXP_DEVCTL2, val);
4606 * t4_get_chip_type - Determine chip type from device ID
4607 * @adap: the adapter
4608 * @ver: adapter version
4610 int t4_get_chip_type(struct adapter *adap, int ver)
4612 enum chip_type chip = 0;
4613 u32 pl_rev = G_REV(t4_read_reg(adap, A_PL_REV));
4615 /* Retrieve adapter's device ID */
4618 chip |= CHELSIO_CHIP_CODE(CHELSIO_T5, pl_rev);
4621 chip |= CHELSIO_CHIP_CODE(CHELSIO_T6, pl_rev);
4624 dev_err(adap, "Device %d is not supported\n",
4625 adap->params.pci.device_id);
4633 * t4_prep_adapter - prepare SW and HW for operation
4634 * @adapter: the adapter
4636 * Initialize adapter SW state for the various HW modules, set initial
4637 * values for some adapter tunables, take PHYs out of reset, and
4638 * initialize the MDIO interface.
4640 int t4_prep_adapter(struct adapter *adapter)
4645 ret = t4_wait_dev_ready(adapter);
4649 pl_rev = G_REV(t4_read_reg(adapter, A_PL_REV));
4650 adapter->params.pci.device_id = adapter->pdev->id.device_id;
4651 adapter->params.pci.vendor_id = adapter->pdev->id.vendor_id;
4654 * WE DON'T NEED adapter->params.chip CODE ONCE PL_REV CONTAINS
4655 * ADAPTER (VERSION << 4 | REVISION)
4657 ver = CHELSIO_PCI_ID_VER(adapter->params.pci.device_id);
4658 adapter->params.chip = 0;
4661 adapter->params.chip |= CHELSIO_CHIP_CODE(CHELSIO_T5, pl_rev);
4662 adapter->params.arch.sge_fl_db = F_DBPRIO | F_DBTYPE;
4663 adapter->params.arch.mps_tcam_size =
4664 NUM_MPS_T5_CLS_SRAM_L_INSTANCES;
4665 adapter->params.arch.mps_rplc_size = 128;
4666 adapter->params.arch.nchan = NCHAN;
4667 adapter->params.arch.vfcount = 128;
4670 adapter->params.chip |= CHELSIO_CHIP_CODE(CHELSIO_T6, pl_rev);
4671 adapter->params.arch.sge_fl_db = 0;
4672 adapter->params.arch.mps_tcam_size =
4673 NUM_MPS_T5_CLS_SRAM_L_INSTANCES;
4674 adapter->params.arch.mps_rplc_size = 256;
4675 adapter->params.arch.nchan = 2;
4676 adapter->params.arch.vfcount = 256;
4679 dev_err(adapter, "%s: Device %d is not supported\n",
4680 __func__, adapter->params.pci.device_id);
4684 adapter->params.pci.vpd_cap_addr =
4685 t4_os_find_pci_capability(adapter, PCI_CAP_ID_VPD);
4687 ret = t4_get_flash_params(adapter);
4689 dev_err(adapter, "Unable to retrieve Flash Parameters, ret = %d\n",
4694 adapter->params.cim_la_size = CIMLA_SIZE;
4696 init_cong_ctrl(adapter->params.a_wnd, adapter->params.b_wnd);
4699 * Default port and clock for debugging in case we can't reach FW.
4701 adapter->params.nports = 1;
4702 adapter->params.portvec = 1;
4703 adapter->params.vpd.cclk = 50000;
4705 /* Set pci completion timeout value to 4 seconds. */
4706 set_pcie_completion_timeout(adapter, 0xd);
4711 * t4_bar2_sge_qregs - return BAR2 SGE Queue register information
4712 * @adapter: the adapter
4713 * @qid: the Queue ID
4714 * @qtype: the Ingress or Egress type for @qid
4715 * @pbar2_qoffset: BAR2 Queue Offset
4716 * @pbar2_qid: BAR2 Queue ID or 0 for Queue ID inferred SGE Queues
4718 * Returns the BAR2 SGE Queue Registers information associated with the
4719 * indicated Absolute Queue ID. These are passed back in return value
4720 * pointers. @qtype should be T4_BAR2_QTYPE_EGRESS for Egress Queue
4721 * and T4_BAR2_QTYPE_INGRESS for Ingress Queues.
4723 * This may return an error which indicates that BAR2 SGE Queue
4724 * registers aren't available. If an error is not returned, then the
4725 * following values are returned:
4727 * *@pbar2_qoffset: the BAR2 Offset of the @qid Registers
4728 * *@pbar2_qid: the BAR2 SGE Queue ID or 0 of @qid
4730 * If the returned BAR2 Queue ID is 0, then BAR2 SGE registers which
4731 * require the "Inferred Queue ID" ability may be used. E.g. the
4732 * Write Combining Doorbell Buffer. If the BAR2 Queue ID is not 0,
4733 * then these "Inferred Queue ID" register may not be used.
4735 int t4_bar2_sge_qregs(struct adapter *adapter, unsigned int qid,
4736 enum t4_bar2_qtype qtype, u64 *pbar2_qoffset,
4737 unsigned int *pbar2_qid)
4739 unsigned int page_shift, page_size, qpp_shift, qpp_mask;
4740 u64 bar2_page_offset, bar2_qoffset;
4741 unsigned int bar2_qid, bar2_qid_offset, bar2_qinferred;
4744 * T4 doesn't support BAR2 SGE Queue registers.
4746 if (is_t4(adapter->params.chip))
4750 * Get our SGE Page Size parameters.
4752 page_shift = adapter->params.sge.hps + 10;
4753 page_size = 1 << page_shift;
4756 * Get the right Queues per Page parameters for our Queue.
4758 qpp_shift = (qtype == T4_BAR2_QTYPE_EGRESS ?
4759 adapter->params.sge.eq_qpp :
4760 adapter->params.sge.iq_qpp);
4761 qpp_mask = (1 << qpp_shift) - 1;
4764 * Calculate the basics of the BAR2 SGE Queue register area:
4765 * o The BAR2 page the Queue registers will be in.
4766 * o The BAR2 Queue ID.
4767 * o The BAR2 Queue ID Offset into the BAR2 page.
4769 bar2_page_offset = ((qid >> qpp_shift) << page_shift);
4770 bar2_qid = qid & qpp_mask;
4771 bar2_qid_offset = bar2_qid * SGE_UDB_SIZE;
4774 * If the BAR2 Queue ID Offset is less than the Page Size, then the
4775 * hardware will infer the Absolute Queue ID simply from the writes to
4776 * the BAR2 Queue ID Offset within the BAR2 Page (and we need to use a
4777 * BAR2 Queue ID of 0 for those writes). Otherwise, we'll simply
4778 * write to the first BAR2 SGE Queue Area within the BAR2 Page with
4779 * the BAR2 Queue ID and the hardware will infer the Absolute Queue ID
4780 * from the BAR2 Page and BAR2 Queue ID.
4782 * One important censequence of this is that some BAR2 SGE registers
4783 * have a "Queue ID" field and we can write the BAR2 SGE Queue ID
4784 * there. But other registers synthesize the SGE Queue ID purely
4785 * from the writes to the registers -- the Write Combined Doorbell
4786 * Buffer is a good example. These BAR2 SGE Registers are only
4787 * available for those BAR2 SGE Register areas where the SGE Absolute
4788 * Queue ID can be inferred from simple writes.
4790 bar2_qoffset = bar2_page_offset;
4791 bar2_qinferred = (bar2_qid_offset < page_size);
4792 if (bar2_qinferred) {
4793 bar2_qoffset += bar2_qid_offset;
4797 *pbar2_qoffset = bar2_qoffset;
4798 *pbar2_qid = bar2_qid;
4803 * t4_init_sge_params - initialize adap->params.sge
4804 * @adapter: the adapter
4806 * Initialize various fields of the adapter's SGE Parameters structure.
4808 int t4_init_sge_params(struct adapter *adapter)
4810 struct sge_params *sge_params = &adapter->params.sge;
4812 unsigned int s_hps, s_qpp;
4815 * Extract the SGE Page Size for our PF.
4817 hps = t4_read_reg(adapter, A_SGE_HOST_PAGE_SIZE);
4818 s_hps = (S_HOSTPAGESIZEPF0 + (S_HOSTPAGESIZEPF1 - S_HOSTPAGESIZEPF0) *
4820 sge_params->hps = ((hps >> s_hps) & M_HOSTPAGESIZEPF0);
4823 * Extract the SGE Egress and Ingess Queues Per Page for our PF.
4825 s_qpp = (S_QUEUESPERPAGEPF0 +
4826 (S_QUEUESPERPAGEPF1 - S_QUEUESPERPAGEPF0) * adapter->pf);
4827 qpp = t4_read_reg(adapter, A_SGE_EGRESS_QUEUES_PER_PAGE_PF);
4828 sge_params->eq_qpp = ((qpp >> s_qpp) & M_QUEUESPERPAGEPF0);
4829 qpp = t4_read_reg(adapter, A_SGE_INGRESS_QUEUES_PER_PAGE_PF);
4830 sge_params->iq_qpp = ((qpp >> s_qpp) & M_QUEUESPERPAGEPF0);
4836 * t4_init_tp_params - initialize adap->params.tp
4837 * @adap: the adapter
4839 * Initialize various fields of the adapter's TP Parameters structure.
4841 int t4_init_tp_params(struct adapter *adap)
4846 v = t4_read_reg(adap, A_TP_TIMER_RESOLUTION);
4847 adap->params.tp.tre = G_TIMERRESOLUTION(v);
4848 adap->params.tp.dack_re = G_DELAYEDACKRESOLUTION(v);
4850 /* MODQ_REQ_MAP defaults to setting queues 0-3 to chan 0-3 */
4851 for (chan = 0; chan < NCHAN; chan++)
4852 adap->params.tp.tx_modq[chan] = chan;
4855 * Cache the adapter's Compressed Filter Mode and global Incress
4858 t4_read_indirect(adap, A_TP_PIO_ADDR, A_TP_PIO_DATA,
4859 &adap->params.tp.vlan_pri_map, 1, A_TP_VLAN_PRI_MAP);
4860 t4_read_indirect(adap, A_TP_PIO_ADDR, A_TP_PIO_DATA,
4861 &adap->params.tp.ingress_config, 1,
4862 A_TP_INGRESS_CONFIG);
4864 /* For T6, cache the adapter's compressed error vector
4865 * and passing outer header info for encapsulated packets.
4867 if (CHELSIO_CHIP_VERSION(adap->params.chip) > CHELSIO_T5) {
4868 v = t4_read_reg(adap, A_TP_OUT_CONFIG);
4869 adap->params.tp.rx_pkt_encap = (v & F_CRXPKTENC) ? 1 : 0;
4873 * Now that we have TP_VLAN_PRI_MAP cached, we can calculate the field
4874 * shift positions of several elements of the Compressed Filter Tuple
4875 * for this adapter which we need frequently ...
4877 adap->params.tp.vlan_shift = t4_filter_field_shift(adap, F_VLAN);
4878 adap->params.tp.vnic_shift = t4_filter_field_shift(adap, F_VNIC_ID);
4879 adap->params.tp.port_shift = t4_filter_field_shift(adap, F_PORT);
4880 adap->params.tp.protocol_shift = t4_filter_field_shift(adap,
4884 * If TP_INGRESS_CONFIG.VNID == 0, then TP_VLAN_PRI_MAP.VNIC_ID
4885 * represents the presense of an Outer VLAN instead of a VNIC ID.
4887 if ((adap->params.tp.ingress_config & F_VNIC) == 0)
4888 adap->params.tp.vnic_shift = -1;
4894 * t4_filter_field_shift - calculate filter field shift
4895 * @adap: the adapter
4896 * @filter_sel: the desired field (from TP_VLAN_PRI_MAP bits)
4898 * Return the shift position of a filter field within the Compressed
4899 * Filter Tuple. The filter field is specified via its selection bit
4900 * within TP_VLAN_PRI_MAL (filter mode). E.g. F_VLAN.
4902 int t4_filter_field_shift(const struct adapter *adap, unsigned int filter_sel)
4904 unsigned int filter_mode = adap->params.tp.vlan_pri_map;
4908 if ((filter_mode & filter_sel) == 0)
4911 for (sel = 1, field_shift = 0; sel < filter_sel; sel <<= 1) {
4912 switch (filter_mode & sel) {
4914 field_shift += W_FT_FCOE;
4917 field_shift += W_FT_PORT;
4920 field_shift += W_FT_VNIC_ID;
4923 field_shift += W_FT_VLAN;
4926 field_shift += W_FT_TOS;
4929 field_shift += W_FT_PROTOCOL;
4932 field_shift += W_FT_ETHERTYPE;
4935 field_shift += W_FT_MACMATCH;
4938 field_shift += W_FT_MPSHITTYPE;
4940 case F_FRAGMENTATION:
4941 field_shift += W_FT_FRAGMENTATION;
4948 int t4_init_rss_mode(struct adapter *adap, int mbox)
4951 struct fw_rss_vi_config_cmd rvc;
4953 memset(&rvc, 0, sizeof(rvc));
4955 for_each_port(adap, i) {
4956 struct port_info *p = adap2pinfo(adap, i);
4958 rvc.op_to_viid = htonl(V_FW_CMD_OP(FW_RSS_VI_CONFIG_CMD) |
4959 F_FW_CMD_REQUEST | F_FW_CMD_READ |
4960 V_FW_RSS_VI_CONFIG_CMD_VIID(p->viid));
4961 rvc.retval_len16 = htonl(FW_LEN16(rvc));
4962 ret = t4_wr_mbox(adap, mbox, &rvc, sizeof(rvc), &rvc);
4965 p->rss_mode = ntohl(rvc.u.basicvirtual.defaultq_to_udpen);
4970 int t4_port_init(struct adapter *adap, int mbox, int pf, int vf)
4974 struct fw_port_cmd c;
4976 memset(&c, 0, sizeof(c));
4978 for_each_port(adap, i) {
4979 unsigned int rss_size = 0;
4980 struct port_info *p = adap2pinfo(adap, i);
4982 while ((adap->params.portvec & (1 << j)) == 0)
4985 c.op_to_portid = cpu_to_be32(V_FW_CMD_OP(FW_PORT_CMD) |
4986 F_FW_CMD_REQUEST | F_FW_CMD_READ |
4987 V_FW_PORT_CMD_PORTID(j));
4988 c.action_to_len16 = cpu_to_be32(V_FW_PORT_CMD_ACTION(
4989 FW_PORT_ACTION_GET_PORT_INFO) |
4991 ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
4995 ret = t4_alloc_vi(adap, mbox, j, pf, vf, 1, addr, &rss_size);
5001 p->rss_size = rss_size;
5002 t4_os_set_hw_addr(adap, i, addr);
5004 ret = be32_to_cpu(c.u.info.lstatus_to_modtype);
5005 p->mdio_addr = (ret & F_FW_PORT_CMD_MDIOCAP) ?
5006 G_FW_PORT_CMD_MDIOADDR(ret) : -1;
5007 p->port_type = G_FW_PORT_CMD_PTYPE(ret);
5008 p->mod_type = FW_PORT_MOD_TYPE_NA;
5010 init_link_config(&p->link_cfg, be16_to_cpu(c.u.info.pcap),
5011 be16_to_cpu(c.u.info.acap));