2 * This file is part of the Chelsio T4 PCI-E SR-IOV Virtual Function Ethernet
5 * Copyright (c) 2009-2010 Chelsio Communications, Inc. All rights reserved.
7 * This software is available to you under a choice of one of two
8 * licenses. You may choose to be licensed under the terms of the GNU
9 * General Public License (GPL) Version 2, available from the file
10 * COPYING in the main directory of this source tree, or the
11 * OpenIB.org BSD license below:
13 * Redistribution and use in source and binary forms, with or
14 * without modification, are permitted provided that the following
17 * - Redistributions of source code must retain the above
18 * copyright notice, this list of conditions and the following
21 * - Redistributions in binary form must reproduce the above
22 * copyright notice, this list of conditions and the following
23 * disclaimer in the documentation and/or other materials
24 * provided with the distribution.
26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
27 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
29 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
30 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
31 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
32 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
36 #include <linux/pci.h>
38 #include "t4vf_common.h"
39 #include "t4vf_defs.h"
41 #include "../cxgb4/t4_regs.h"
42 #include "../cxgb4/t4_values.h"
43 #include "../cxgb4/t4fw_api.h"
46 * Wait for the device to become ready (signified by our "who am I" register
47 * returning a value other than all 1's). Return an error if it doesn't
50 int t4vf_wait_dev_ready(struct adapter *adapter)
52 const u32 whoami = T4VF_PL_BASE_ADDR + PL_VF_WHOAMI;
53 const u32 notready1 = 0xffffffff;
54 const u32 notready2 = 0xeeeeeeee;
57 val = t4_read_reg(adapter, whoami);
58 if (val != notready1 && val != notready2)
61 val = t4_read_reg(adapter, whoami);
62 if (val != notready1 && val != notready2)
69 * Get the reply to a mailbox command and store it in @rpl in big-endian order
70 * (since the firmware data structures are specified in a big-endian layout).
72 static void get_mbox_rpl(struct adapter *adapter, __be64 *rpl, int size,
75 for ( ; size; size -= 8, mbox_data += 8)
76 *rpl++ = cpu_to_be64(t4_read_reg64(adapter, mbox_data));
80 * Dump contents of mailbox with a leading tag.
82 static void dump_mbox(struct adapter *adapter, const char *tag, u32 mbox_data)
84 dev_err(adapter->pdev_dev,
85 "mbox %s: %llx %llx %llx %llx %llx %llx %llx %llx\n", tag,
86 (unsigned long long)t4_read_reg64(adapter, mbox_data + 0),
87 (unsigned long long)t4_read_reg64(adapter, mbox_data + 8),
88 (unsigned long long)t4_read_reg64(adapter, mbox_data + 16),
89 (unsigned long long)t4_read_reg64(adapter, mbox_data + 24),
90 (unsigned long long)t4_read_reg64(adapter, mbox_data + 32),
91 (unsigned long long)t4_read_reg64(adapter, mbox_data + 40),
92 (unsigned long long)t4_read_reg64(adapter, mbox_data + 48),
93 (unsigned long long)t4_read_reg64(adapter, mbox_data + 56));
97 * t4vf_wr_mbox_core - send a command to FW through the mailbox
98 * @adapter: the adapter
99 * @cmd: the command to write
100 * @size: command length in bytes
101 * @rpl: where to optionally store the reply
102 * @sleep_ok: if true we may sleep while awaiting command completion
104 * Sends the given command to FW through the mailbox and waits for the
105 * FW to execute the command. If @rpl is not %NULL it is used to store
106 * the FW's reply to the command. The command and its optional reply
107 * are of the same length. FW can take up to 500 ms to respond.
108 * @sleep_ok determines whether we may sleep while awaiting the response.
109 * If sleeping is allowed we use progressive backoff otherwise we spin.
111 * The return value is 0 on success or a negative errno on failure. A
112 * failure can happen either because we are not able to execute the
113 * command or FW executes it but signals an error. In the latter case
114 * the return value is the error code indicated by FW (negated).
116 int t4vf_wr_mbox_core(struct adapter *adapter, const void *cmd, int size,
117 void *rpl, bool sleep_ok)
119 static const int delay[] = {
120 1, 1, 3, 5, 10, 10, 20, 50, 100
124 int i, ms, delay_idx;
126 u32 mbox_ctl = T4VF_CIM_BASE_ADDR + CIM_VF_EXT_MAILBOX_CTRL;
128 /* In T6, mailbox size is changed to 128 bytes to avoid
129 * invalidating the entire prefetch buffer.
131 if (CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5)
132 mbox_data = T4VF_MBDATA_BASE_ADDR;
134 mbox_data = T6VF_MBDATA_BASE_ADDR;
137 * Commands must be multiples of 16 bytes in length and may not be
138 * larger than the size of the Mailbox Data register array.
140 if ((size % 16) != 0 ||
141 size > NUM_CIM_VF_MAILBOX_DATA_INSTANCES * 4)
145 * Loop trying to get ownership of the mailbox. Return an error
146 * if we can't gain ownership.
148 v = MBOWNER_G(t4_read_reg(adapter, mbox_ctl));
149 for (i = 0; v == MBOX_OWNER_NONE && i < 3; i++)
150 v = MBOWNER_G(t4_read_reg(adapter, mbox_ctl));
151 if (v != MBOX_OWNER_DRV)
152 return v == MBOX_OWNER_FW ? -EBUSY : -ETIMEDOUT;
155 * Write the command array into the Mailbox Data register array and
156 * transfer ownership of the mailbox to the firmware.
158 * For the VFs, the Mailbox Data "registers" are actually backed by
159 * T4's "MA" interface rather than PL Registers (as is the case for
160 * the PFs). Because these are in different coherency domains, the
161 * write to the VF's PL-register-backed Mailbox Control can race in
162 * front of the writes to the MA-backed VF Mailbox Data "registers".
163 * So we need to do a read-back on at least one byte of the VF Mailbox
164 * Data registers before doing the write to the VF Mailbox Control
167 for (i = 0, p = cmd; i < size; i += 8)
168 t4_write_reg64(adapter, mbox_data + i, be64_to_cpu(*p++));
169 t4_read_reg(adapter, mbox_data); /* flush write */
171 t4_write_reg(adapter, mbox_ctl,
172 MBMSGVALID_F | MBOWNER_V(MBOX_OWNER_FW));
173 t4_read_reg(adapter, mbox_ctl); /* flush write */
176 * Spin waiting for firmware to acknowledge processing our command.
181 for (i = 0; i < FW_CMD_MAX_TIMEOUT; i += ms) {
183 ms = delay[delay_idx];
184 if (delay_idx < ARRAY_SIZE(delay) - 1)
191 * If we're the owner, see if this is the reply we wanted.
193 v = t4_read_reg(adapter, mbox_ctl);
194 if (MBOWNER_G(v) == MBOX_OWNER_DRV) {
196 * If the Message Valid bit isn't on, revoke ownership
197 * of the mailbox and continue waiting for our reply.
199 if ((v & MBMSGVALID_F) == 0) {
200 t4_write_reg(adapter, mbox_ctl,
201 MBOWNER_V(MBOX_OWNER_NONE));
206 * We now have our reply. Extract the command return
207 * value, copy the reply back to our caller's buffer
208 * (if specified) and revoke ownership of the mailbox.
209 * We return the (negated) firmware command return
210 * code (this depends on FW_SUCCESS == 0).
213 /* return value in low-order little-endian word */
214 v = t4_read_reg(adapter, mbox_data);
215 if (FW_CMD_RETVAL_G(v))
216 dump_mbox(adapter, "FW Error", mbox_data);
219 /* request bit in high-order BE word */
220 WARN_ON((be32_to_cpu(*(const __be32 *)cmd)
221 & FW_CMD_REQUEST_F) == 0);
222 get_mbox_rpl(adapter, rpl, size, mbox_data);
223 WARN_ON((be32_to_cpu(*(__be32 *)rpl)
224 & FW_CMD_REQUEST_F) != 0);
226 t4_write_reg(adapter, mbox_ctl,
227 MBOWNER_V(MBOX_OWNER_NONE));
228 return -FW_CMD_RETVAL_G(v);
233 * We timed out. Return the error ...
235 dump_mbox(adapter, "FW Timeout", mbox_data);
240 * hash_mac_addr - return the hash value of a MAC address
241 * @addr: the 48-bit Ethernet MAC address
243 * Hashes a MAC address according to the hash function used by hardware
244 * inexact (hash) address matching.
246 static int hash_mac_addr(const u8 *addr)
248 u32 a = ((u32)addr[0] << 16) | ((u32)addr[1] << 8) | addr[2];
249 u32 b = ((u32)addr[3] << 16) | ((u32)addr[4] << 8) | addr[5];
256 #define ADVERT_MASK (FW_PORT_CAP_SPEED_100M | FW_PORT_CAP_SPEED_1G |\
257 FW_PORT_CAP_SPEED_10G | FW_PORT_CAP_SPEED_40G | \
258 FW_PORT_CAP_SPEED_100G | FW_PORT_CAP_ANEG)
261 * init_link_config - initialize a link's SW state
262 * @lc: structure holding the link state
263 * @caps: link capabilities
265 * Initializes the SW state maintained for each link, including the link's
266 * capabilities and default speed/flow-control/autonegotiation settings.
268 static void init_link_config(struct link_config *lc, unsigned int caps)
270 lc->supported = caps;
271 lc->requested_speed = 0;
273 lc->requested_fc = lc->fc = PAUSE_RX | PAUSE_TX;
274 if (lc->supported & FW_PORT_CAP_ANEG) {
275 lc->advertising = lc->supported & ADVERT_MASK;
276 lc->autoneg = AUTONEG_ENABLE;
277 lc->requested_fc |= PAUSE_AUTONEG;
280 lc->autoneg = AUTONEG_DISABLE;
285 * t4vf_port_init - initialize port hardware/software state
286 * @adapter: the adapter
287 * @pidx: the adapter port index
289 int t4vf_port_init(struct adapter *adapter, int pidx)
291 struct port_info *pi = adap2pinfo(adapter, pidx);
292 struct fw_vi_cmd vi_cmd, vi_rpl;
293 struct fw_port_cmd port_cmd, port_rpl;
297 * Execute a VI Read command to get our Virtual Interface information
298 * like MAC address, etc.
300 memset(&vi_cmd, 0, sizeof(vi_cmd));
301 vi_cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_VI_CMD) |
304 vi_cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(vi_cmd));
305 vi_cmd.type_viid = cpu_to_be16(FW_VI_CMD_VIID_V(pi->viid));
306 v = t4vf_wr_mbox(adapter, &vi_cmd, sizeof(vi_cmd), &vi_rpl);
310 BUG_ON(pi->port_id != FW_VI_CMD_PORTID_G(vi_rpl.portid_pkd));
311 pi->rss_size = FW_VI_CMD_RSSSIZE_G(be16_to_cpu(vi_rpl.rsssize_pkd));
312 t4_os_set_hw_addr(adapter, pidx, vi_rpl.mac);
315 * If we don't have read access to our port information, we're done
316 * now. Otherwise, execute a PORT Read command to get it ...
318 if (!(adapter->params.vfres.r_caps & FW_CMD_CAP_PORT))
321 memset(&port_cmd, 0, sizeof(port_cmd));
322 port_cmd.op_to_portid = cpu_to_be32(FW_CMD_OP_V(FW_PORT_CMD) |
325 FW_PORT_CMD_PORTID_V(pi->port_id));
326 port_cmd.action_to_len16 =
327 cpu_to_be32(FW_PORT_CMD_ACTION_V(FW_PORT_ACTION_GET_PORT_INFO) |
329 v = t4vf_wr_mbox(adapter, &port_cmd, sizeof(port_cmd), &port_rpl);
333 v = be32_to_cpu(port_rpl.u.info.lstatus_to_modtype);
334 pi->mdio_addr = (v & FW_PORT_CMD_MDIOCAP_F) ?
335 FW_PORT_CMD_MDIOADDR_G(v) : -1;
336 pi->port_type = FW_PORT_CMD_PTYPE_G(v);
337 pi->mod_type = FW_PORT_MOD_TYPE_NA;
339 init_link_config(&pi->link_cfg, be16_to_cpu(port_rpl.u.info.pcap));
345 * t4vf_fw_reset - issue a reset to FW
346 * @adapter: the adapter
348 * Issues a reset command to FW. For a Physical Function this would
349 * result in the Firmware resetting all of its state. For a Virtual
350 * Function this just resets the state associated with the VF.
352 int t4vf_fw_reset(struct adapter *adapter)
354 struct fw_reset_cmd cmd;
356 memset(&cmd, 0, sizeof(cmd));
357 cmd.op_to_write = cpu_to_be32(FW_CMD_OP_V(FW_RESET_CMD) |
359 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
360 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
364 * t4vf_query_params - query FW or device parameters
365 * @adapter: the adapter
366 * @nparams: the number of parameters
367 * @params: the parameter names
368 * @vals: the parameter values
370 * Reads the values of firmware or device parameters. Up to 7 parameters
371 * can be queried at once.
373 static int t4vf_query_params(struct adapter *adapter, unsigned int nparams,
374 const u32 *params, u32 *vals)
377 struct fw_params_cmd cmd, rpl;
378 struct fw_params_param *p;
384 memset(&cmd, 0, sizeof(cmd));
385 cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_PARAMS_CMD) |
388 len16 = DIV_ROUND_UP(offsetof(struct fw_params_cmd,
389 param[nparams].mnem), 16);
390 cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16_V(len16));
391 for (i = 0, p = &cmd.param[0]; i < nparams; i++, p++)
392 p->mnem = htonl(*params++);
394 ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
396 for (i = 0, p = &rpl.param[0]; i < nparams; i++, p++)
397 *vals++ = be32_to_cpu(p->val);
402 * t4vf_set_params - sets FW or device parameters
403 * @adapter: the adapter
404 * @nparams: the number of parameters
405 * @params: the parameter names
406 * @vals: the parameter values
408 * Sets the values of firmware or device parameters. Up to 7 parameters
409 * can be specified at once.
411 int t4vf_set_params(struct adapter *adapter, unsigned int nparams,
412 const u32 *params, const u32 *vals)
415 struct fw_params_cmd cmd;
416 struct fw_params_param *p;
422 memset(&cmd, 0, sizeof(cmd));
423 cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_PARAMS_CMD) |
426 len16 = DIV_ROUND_UP(offsetof(struct fw_params_cmd,
427 param[nparams]), 16);
428 cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16_V(len16));
429 for (i = 0, p = &cmd.param[0]; i < nparams; i++, p++) {
430 p->mnem = cpu_to_be32(*params++);
431 p->val = cpu_to_be32(*vals++);
434 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
438 * t4vf_bar2_sge_qregs - return BAR2 SGE Queue register information
439 * @adapter: the adapter
441 * @qtype: the Ingress or Egress type for @qid
442 * @pbar2_qoffset: BAR2 Queue Offset
443 * @pbar2_qid: BAR2 Queue ID or 0 for Queue ID inferred SGE Queues
445 * Returns the BAR2 SGE Queue Registers information associated with the
446 * indicated Absolute Queue ID. These are passed back in return value
447 * pointers. @qtype should be T4_BAR2_QTYPE_EGRESS for Egress Queue
448 * and T4_BAR2_QTYPE_INGRESS for Ingress Queues.
450 * This may return an error which indicates that BAR2 SGE Queue
451 * registers aren't available. If an error is not returned, then the
452 * following values are returned:
454 * *@pbar2_qoffset: the BAR2 Offset of the @qid Registers
455 * *@pbar2_qid: the BAR2 SGE Queue ID or 0 of @qid
457 * If the returned BAR2 Queue ID is 0, then BAR2 SGE registers which
458 * require the "Inferred Queue ID" ability may be used. E.g. the
459 * Write Combining Doorbell Buffer. If the BAR2 Queue ID is not 0,
460 * then these "Inferred Queue ID" register may not be used.
462 int t4vf_bar2_sge_qregs(struct adapter *adapter,
464 enum t4_bar2_qtype qtype,
466 unsigned int *pbar2_qid)
468 unsigned int page_shift, page_size, qpp_shift, qpp_mask;
469 u64 bar2_page_offset, bar2_qoffset;
470 unsigned int bar2_qid, bar2_qid_offset, bar2_qinferred;
472 /* T4 doesn't support BAR2 SGE Queue registers.
474 if (is_t4(adapter->params.chip))
477 /* Get our SGE Page Size parameters.
479 page_shift = adapter->params.sge.sge_vf_hps + 10;
480 page_size = 1 << page_shift;
482 /* Get the right Queues per Page parameters for our Queue.
484 qpp_shift = (qtype == T4_BAR2_QTYPE_EGRESS
485 ? adapter->params.sge.sge_vf_eq_qpp
486 : adapter->params.sge.sge_vf_iq_qpp);
487 qpp_mask = (1 << qpp_shift) - 1;
489 /* Calculate the basics of the BAR2 SGE Queue register area:
490 * o The BAR2 page the Queue registers will be in.
491 * o The BAR2 Queue ID.
492 * o The BAR2 Queue ID Offset into the BAR2 page.
494 bar2_page_offset = ((u64)(qid >> qpp_shift) << page_shift);
495 bar2_qid = qid & qpp_mask;
496 bar2_qid_offset = bar2_qid * SGE_UDB_SIZE;
498 /* If the BAR2 Queue ID Offset is less than the Page Size, then the
499 * hardware will infer the Absolute Queue ID simply from the writes to
500 * the BAR2 Queue ID Offset within the BAR2 Page (and we need to use a
501 * BAR2 Queue ID of 0 for those writes). Otherwise, we'll simply
502 * write to the first BAR2 SGE Queue Area within the BAR2 Page with
503 * the BAR2 Queue ID and the hardware will infer the Absolute Queue ID
504 * from the BAR2 Page and BAR2 Queue ID.
506 * One important censequence of this is that some BAR2 SGE registers
507 * have a "Queue ID" field and we can write the BAR2 SGE Queue ID
508 * there. But other registers synthesize the SGE Queue ID purely
509 * from the writes to the registers -- the Write Combined Doorbell
510 * Buffer is a good example. These BAR2 SGE Registers are only
511 * available for those BAR2 SGE Register areas where the SGE Absolute
512 * Queue ID can be inferred from simple writes.
514 bar2_qoffset = bar2_page_offset;
515 bar2_qinferred = (bar2_qid_offset < page_size);
516 if (bar2_qinferred) {
517 bar2_qoffset += bar2_qid_offset;
521 *pbar2_qoffset = bar2_qoffset;
522 *pbar2_qid = bar2_qid;
527 * t4vf_get_sge_params - retrieve adapter Scatter gather Engine parameters
528 * @adapter: the adapter
530 * Retrieves various core SGE parameters in the form of hardware SGE
531 * register values. The caller is responsible for decoding these as
532 * needed. The SGE parameters are stored in @adapter->params.sge.
534 int t4vf_get_sge_params(struct adapter *adapter)
536 struct sge_params *sge_params = &adapter->params.sge;
537 u32 params[7], vals[7];
540 params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
541 FW_PARAMS_PARAM_XYZ_V(SGE_CONTROL_A));
542 params[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
543 FW_PARAMS_PARAM_XYZ_V(SGE_HOST_PAGE_SIZE_A));
544 params[2] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
545 FW_PARAMS_PARAM_XYZ_V(SGE_FL_BUFFER_SIZE0_A));
546 params[3] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
547 FW_PARAMS_PARAM_XYZ_V(SGE_FL_BUFFER_SIZE1_A));
548 params[4] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
549 FW_PARAMS_PARAM_XYZ_V(SGE_TIMER_VALUE_0_AND_1_A));
550 params[5] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
551 FW_PARAMS_PARAM_XYZ_V(SGE_TIMER_VALUE_2_AND_3_A));
552 params[6] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
553 FW_PARAMS_PARAM_XYZ_V(SGE_TIMER_VALUE_4_AND_5_A));
554 v = t4vf_query_params(adapter, 7, params, vals);
557 sge_params->sge_control = vals[0];
558 sge_params->sge_host_page_size = vals[1];
559 sge_params->sge_fl_buffer_size[0] = vals[2];
560 sge_params->sge_fl_buffer_size[1] = vals[3];
561 sge_params->sge_timer_value_0_and_1 = vals[4];
562 sge_params->sge_timer_value_2_and_3 = vals[5];
563 sge_params->sge_timer_value_4_and_5 = vals[6];
565 /* T4 uses a single control field to specify both the PCIe Padding and
566 * Packing Boundary. T5 introduced the ability to specify these
567 * separately with the Padding Boundary in SGE_CONTROL and and Packing
568 * Boundary in SGE_CONTROL2. So for T5 and later we need to grab
569 * SGE_CONTROL in order to determine how ingress packet data will be
570 * laid out in Packed Buffer Mode. Unfortunately, older versions of
571 * the firmware won't let us retrieve SGE_CONTROL2 so if we get a
572 * failure grabbing it we throw an error since we can't figure out the
575 if (!is_t4(adapter->params.chip)) {
576 params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
577 FW_PARAMS_PARAM_XYZ_V(SGE_CONTROL2_A));
578 v = t4vf_query_params(adapter, 1, params, vals);
579 if (v != FW_SUCCESS) {
580 dev_err(adapter->pdev_dev,
581 "Unable to get SGE Control2; "
582 "probably old firmware.\n");
585 sge_params->sge_control2 = vals[0];
588 params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
589 FW_PARAMS_PARAM_XYZ_V(SGE_INGRESS_RX_THRESHOLD_A));
590 params[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
591 FW_PARAMS_PARAM_XYZ_V(SGE_CONM_CTRL_A));
592 v = t4vf_query_params(adapter, 2, params, vals);
595 sge_params->sge_ingress_rx_threshold = vals[0];
596 sge_params->sge_congestion_control = vals[1];
598 /* For T5 and later we want to use the new BAR2 Doorbells.
599 * Unfortunately, older firmware didn't allow the this register to be
602 if (!is_t4(adapter->params.chip)) {
604 unsigned int pf, s_hps, s_qpp;
606 params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
607 FW_PARAMS_PARAM_XYZ_V(
608 SGE_EGRESS_QUEUES_PER_PAGE_VF_A));
609 params[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
610 FW_PARAMS_PARAM_XYZ_V(
611 SGE_INGRESS_QUEUES_PER_PAGE_VF_A));
612 v = t4vf_query_params(adapter, 2, params, vals);
613 if (v != FW_SUCCESS) {
614 dev_warn(adapter->pdev_dev,
615 "Unable to get VF SGE Queues/Page; "
616 "probably old firmware.\n");
619 sge_params->sge_egress_queues_per_page = vals[0];
620 sge_params->sge_ingress_queues_per_page = vals[1];
622 /* We need the Queues/Page for our VF. This is based on the
623 * PF from which we're instantiated and is indexed in the
624 * register we just read. Do it once here so other code in
625 * the driver can just use it.
627 whoami = t4_read_reg(adapter,
628 T4VF_PL_BASE_ADDR + PL_VF_WHOAMI_A);
629 pf = CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5 ?
630 SOURCEPF_G(whoami) : T6_SOURCEPF_G(whoami);
632 s_hps = (HOSTPAGESIZEPF0_S +
633 (HOSTPAGESIZEPF1_S - HOSTPAGESIZEPF0_S) * pf);
634 sge_params->sge_vf_hps =
635 ((sge_params->sge_host_page_size >> s_hps)
636 & HOSTPAGESIZEPF0_M);
638 s_qpp = (QUEUESPERPAGEPF0_S +
639 (QUEUESPERPAGEPF1_S - QUEUESPERPAGEPF0_S) * pf);
640 sge_params->sge_vf_eq_qpp =
641 ((sge_params->sge_egress_queues_per_page >> s_qpp)
642 & QUEUESPERPAGEPF0_M);
643 sge_params->sge_vf_iq_qpp =
644 ((sge_params->sge_ingress_queues_per_page >> s_qpp)
645 & QUEUESPERPAGEPF0_M);
652 * t4vf_get_vpd_params - retrieve device VPD paremeters
653 * @adapter: the adapter
655 * Retrives various device Vital Product Data parameters. The parameters
656 * are stored in @adapter->params.vpd.
658 int t4vf_get_vpd_params(struct adapter *adapter)
660 struct vpd_params *vpd_params = &adapter->params.vpd;
661 u32 params[7], vals[7];
664 params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) |
665 FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_CCLK));
666 v = t4vf_query_params(adapter, 1, params, vals);
669 vpd_params->cclk = vals[0];
675 * t4vf_get_dev_params - retrieve device paremeters
676 * @adapter: the adapter
678 * Retrives various device parameters. The parameters are stored in
679 * @adapter->params.dev.
681 int t4vf_get_dev_params(struct adapter *adapter)
683 struct dev_params *dev_params = &adapter->params.dev;
684 u32 params[7], vals[7];
687 params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) |
688 FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_FWREV));
689 params[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) |
690 FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_TPREV));
691 v = t4vf_query_params(adapter, 2, params, vals);
694 dev_params->fwrev = vals[0];
695 dev_params->tprev = vals[1];
701 * t4vf_get_rss_glb_config - retrieve adapter RSS Global Configuration
702 * @adapter: the adapter
704 * Retrieves global RSS mode and parameters with which we have to live
705 * and stores them in the @adapter's RSS parameters.
707 int t4vf_get_rss_glb_config(struct adapter *adapter)
709 struct rss_params *rss = &adapter->params.rss;
710 struct fw_rss_glb_config_cmd cmd, rpl;
714 * Execute an RSS Global Configuration read command to retrieve
715 * our RSS configuration.
717 memset(&cmd, 0, sizeof(cmd));
718 cmd.op_to_write = cpu_to_be32(FW_CMD_OP_V(FW_RSS_GLB_CONFIG_CMD) |
721 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
722 v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
727 * Transate the big-endian RSS Global Configuration into our
728 * cpu-endian format based on the RSS mode. We also do first level
729 * filtering at this point to weed out modes which don't support
732 rss->mode = FW_RSS_GLB_CONFIG_CMD_MODE_G(
733 be32_to_cpu(rpl.u.manual.mode_pkd));
735 case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: {
736 u32 word = be32_to_cpu(
737 rpl.u.basicvirtual.synmapen_to_hashtoeplitz);
739 rss->u.basicvirtual.synmapen =
740 ((word & FW_RSS_GLB_CONFIG_CMD_SYNMAPEN_F) != 0);
741 rss->u.basicvirtual.syn4tupenipv6 =
742 ((word & FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV6_F) != 0);
743 rss->u.basicvirtual.syn2tupenipv6 =
744 ((word & FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV6_F) != 0);
745 rss->u.basicvirtual.syn4tupenipv4 =
746 ((word & FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV4_F) != 0);
747 rss->u.basicvirtual.syn2tupenipv4 =
748 ((word & FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV4_F) != 0);
750 rss->u.basicvirtual.ofdmapen =
751 ((word & FW_RSS_GLB_CONFIG_CMD_OFDMAPEN_F) != 0);
753 rss->u.basicvirtual.tnlmapen =
754 ((word & FW_RSS_GLB_CONFIG_CMD_TNLMAPEN_F) != 0);
755 rss->u.basicvirtual.tnlalllookup =
756 ((word & FW_RSS_GLB_CONFIG_CMD_TNLALLLKP_F) != 0);
758 rss->u.basicvirtual.hashtoeplitz =
759 ((word & FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ_F) != 0);
761 /* we need at least Tunnel Map Enable to be set */
762 if (!rss->u.basicvirtual.tnlmapen)
768 /* all unknown/unsupported RSS modes result in an error */
776 * t4vf_get_vfres - retrieve VF resource limits
777 * @adapter: the adapter
779 * Retrieves configured resource limits and capabilities for a virtual
780 * function. The results are stored in @adapter->vfres.
782 int t4vf_get_vfres(struct adapter *adapter)
784 struct vf_resources *vfres = &adapter->params.vfres;
785 struct fw_pfvf_cmd cmd, rpl;
790 * Execute PFVF Read command to get VF resource limits; bail out early
791 * with error on command failure.
793 memset(&cmd, 0, sizeof(cmd));
794 cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_PFVF_CMD) |
797 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
798 v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
803 * Extract VF resource limits and return success.
805 word = be32_to_cpu(rpl.niqflint_niq);
806 vfres->niqflint = FW_PFVF_CMD_NIQFLINT_G(word);
807 vfres->niq = FW_PFVF_CMD_NIQ_G(word);
809 word = be32_to_cpu(rpl.type_to_neq);
810 vfres->neq = FW_PFVF_CMD_NEQ_G(word);
811 vfres->pmask = FW_PFVF_CMD_PMASK_G(word);
813 word = be32_to_cpu(rpl.tc_to_nexactf);
814 vfres->tc = FW_PFVF_CMD_TC_G(word);
815 vfres->nvi = FW_PFVF_CMD_NVI_G(word);
816 vfres->nexactf = FW_PFVF_CMD_NEXACTF_G(word);
818 word = be32_to_cpu(rpl.r_caps_to_nethctrl);
819 vfres->r_caps = FW_PFVF_CMD_R_CAPS_G(word);
820 vfres->wx_caps = FW_PFVF_CMD_WX_CAPS_G(word);
821 vfres->nethctrl = FW_PFVF_CMD_NETHCTRL_G(word);
827 * t4vf_read_rss_vi_config - read a VI's RSS configuration
828 * @adapter: the adapter
829 * @viid: Virtual Interface ID
830 * @config: pointer to host-native VI RSS Configuration buffer
832 * Reads the Virtual Interface's RSS configuration information and
833 * translates it into CPU-native format.
835 int t4vf_read_rss_vi_config(struct adapter *adapter, unsigned int viid,
836 union rss_vi_config *config)
838 struct fw_rss_vi_config_cmd cmd, rpl;
841 memset(&cmd, 0, sizeof(cmd));
842 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_RSS_VI_CONFIG_CMD) |
845 FW_RSS_VI_CONFIG_CMD_VIID(viid));
846 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
847 v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
851 switch (adapter->params.rss.mode) {
852 case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: {
853 u32 word = be32_to_cpu(rpl.u.basicvirtual.defaultq_to_udpen);
855 config->basicvirtual.ip6fourtupen =
856 ((word & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN_F) != 0);
857 config->basicvirtual.ip6twotupen =
858 ((word & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN_F) != 0);
859 config->basicvirtual.ip4fourtupen =
860 ((word & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN_F) != 0);
861 config->basicvirtual.ip4twotupen =
862 ((word & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN_F) != 0);
863 config->basicvirtual.udpen =
864 ((word & FW_RSS_VI_CONFIG_CMD_UDPEN_F) != 0);
865 config->basicvirtual.defaultq =
866 FW_RSS_VI_CONFIG_CMD_DEFAULTQ_G(word);
878 * t4vf_write_rss_vi_config - write a VI's RSS configuration
879 * @adapter: the adapter
880 * @viid: Virtual Interface ID
881 * @config: pointer to host-native VI RSS Configuration buffer
883 * Write the Virtual Interface's RSS configuration information
884 * (translating it into firmware-native format before writing).
886 int t4vf_write_rss_vi_config(struct adapter *adapter, unsigned int viid,
887 union rss_vi_config *config)
889 struct fw_rss_vi_config_cmd cmd, rpl;
891 memset(&cmd, 0, sizeof(cmd));
892 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_RSS_VI_CONFIG_CMD) |
895 FW_RSS_VI_CONFIG_CMD_VIID(viid));
896 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
897 switch (adapter->params.rss.mode) {
898 case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: {
901 if (config->basicvirtual.ip6fourtupen)
902 word |= FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN_F;
903 if (config->basicvirtual.ip6twotupen)
904 word |= FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN_F;
905 if (config->basicvirtual.ip4fourtupen)
906 word |= FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN_F;
907 if (config->basicvirtual.ip4twotupen)
908 word |= FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN_F;
909 if (config->basicvirtual.udpen)
910 word |= FW_RSS_VI_CONFIG_CMD_UDPEN_F;
911 word |= FW_RSS_VI_CONFIG_CMD_DEFAULTQ_V(
912 config->basicvirtual.defaultq);
913 cmd.u.basicvirtual.defaultq_to_udpen = cpu_to_be32(word);
921 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
925 * t4vf_config_rss_range - configure a portion of the RSS mapping table
926 * @adapter: the adapter
927 * @viid: Virtual Interface of RSS Table Slice
928 * @start: starting entry in the table to write
929 * @n: how many table entries to write
930 * @rspq: values for the "Response Queue" (Ingress Queue) lookup table
931 * @nrspq: number of values in @rspq
933 * Programs the selected part of the VI's RSS mapping table with the
934 * provided values. If @nrspq < @n the supplied values are used repeatedly
935 * until the full table range is populated.
937 * The caller must ensure the values in @rspq are in the range 0..1023.
939 int t4vf_config_rss_range(struct adapter *adapter, unsigned int viid,
940 int start, int n, const u16 *rspq, int nrspq)
942 const u16 *rsp = rspq;
943 const u16 *rsp_end = rspq+nrspq;
944 struct fw_rss_ind_tbl_cmd cmd;
947 * Initialize firmware command template to write the RSS table.
949 memset(&cmd, 0, sizeof(cmd));
950 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_RSS_IND_TBL_CMD) |
953 FW_RSS_IND_TBL_CMD_VIID_V(viid));
954 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
957 * Each firmware RSS command can accommodate up to 32 RSS Ingress
958 * Queue Identifiers. These Ingress Queue IDs are packed three to
959 * a 32-bit word as 10-bit values with the upper remaining 2 bits
963 __be32 *qp = &cmd.iq0_to_iq2;
968 * Set up the firmware RSS command header to send the next
969 * "nq" Ingress Queue IDs to the firmware.
971 cmd.niqid = cpu_to_be16(nq);
972 cmd.startidx = cpu_to_be16(start);
975 * "nq" more done for the start of the next loop.
981 * While there are still Ingress Queue IDs to stuff into the
982 * current firmware RSS command, retrieve them from the
983 * Ingress Queue ID array and insert them into the command.
987 * Grab up to the next 3 Ingress Queue IDs (wrapping
988 * around the Ingress Queue ID array if necessary) and
989 * insert them into the firmware RSS command at the
990 * current 3-tuple position within the commad.
994 int nqbuf = min(3, nq);
997 qbuf[0] = qbuf[1] = qbuf[2] = 0;
1004 *qp++ = cpu_to_be32(FW_RSS_IND_TBL_CMD_IQ0_V(qbuf[0]) |
1005 FW_RSS_IND_TBL_CMD_IQ1_V(qbuf[1]) |
1006 FW_RSS_IND_TBL_CMD_IQ2_V(qbuf[2]));
1010 * Send this portion of the RRS table update to the firmware;
1011 * bail out on any errors.
1013 ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1021 * t4vf_alloc_vi - allocate a virtual interface on a port
1022 * @adapter: the adapter
1023 * @port_id: physical port associated with the VI
1025 * Allocate a new Virtual Interface and bind it to the indicated
1026 * physical port. Return the new Virtual Interface Identifier on
1027 * success, or a [negative] error number on failure.
1029 int t4vf_alloc_vi(struct adapter *adapter, int port_id)
1031 struct fw_vi_cmd cmd, rpl;
1035 * Execute a VI command to allocate Virtual Interface and return its
1038 memset(&cmd, 0, sizeof(cmd));
1039 cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_VI_CMD) |
1043 cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(cmd) |
1045 cmd.portid_pkd = FW_VI_CMD_PORTID_V(port_id);
1046 v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
1050 return FW_VI_CMD_VIID_G(be16_to_cpu(rpl.type_viid));
1054 * t4vf_free_vi -- free a virtual interface
1055 * @adapter: the adapter
1056 * @viid: the virtual interface identifier
1058 * Free a previously allocated Virtual Interface. Return an error on
1061 int t4vf_free_vi(struct adapter *adapter, int viid)
1063 struct fw_vi_cmd cmd;
1066 * Execute a VI command to free the Virtual Interface.
1068 memset(&cmd, 0, sizeof(cmd));
1069 cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_VI_CMD) |
1072 cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(cmd) |
1074 cmd.type_viid = cpu_to_be16(FW_VI_CMD_VIID_V(viid));
1075 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1079 * t4vf_enable_vi - enable/disable a virtual interface
1080 * @adapter: the adapter
1081 * @viid: the Virtual Interface ID
1082 * @rx_en: 1=enable Rx, 0=disable Rx
1083 * @tx_en: 1=enable Tx, 0=disable Tx
1085 * Enables/disables a virtual interface.
1087 int t4vf_enable_vi(struct adapter *adapter, unsigned int viid,
1088 bool rx_en, bool tx_en)
1090 struct fw_vi_enable_cmd cmd;
1092 memset(&cmd, 0, sizeof(cmd));
1093 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_ENABLE_CMD) |
1096 FW_VI_ENABLE_CMD_VIID_V(viid));
1097 cmd.ien_to_len16 = cpu_to_be32(FW_VI_ENABLE_CMD_IEN_V(rx_en) |
1098 FW_VI_ENABLE_CMD_EEN_V(tx_en) |
1100 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1104 * t4vf_identify_port - identify a VI's port by blinking its LED
1105 * @adapter: the adapter
1106 * @viid: the Virtual Interface ID
1107 * @nblinks: how many times to blink LED at 2.5 Hz
1109 * Identifies a VI's port by blinking its LED.
1111 int t4vf_identify_port(struct adapter *adapter, unsigned int viid,
1112 unsigned int nblinks)
1114 struct fw_vi_enable_cmd cmd;
1116 memset(&cmd, 0, sizeof(cmd));
1117 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_ENABLE_CMD) |
1120 FW_VI_ENABLE_CMD_VIID_V(viid));
1121 cmd.ien_to_len16 = cpu_to_be32(FW_VI_ENABLE_CMD_LED_F |
1123 cmd.blinkdur = cpu_to_be16(nblinks);
1124 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1128 * t4vf_set_rxmode - set Rx properties of a virtual interface
1129 * @adapter: the adapter
1131 * @mtu: the new MTU or -1 for no change
1132 * @promisc: 1 to enable promiscuous mode, 0 to disable it, -1 no change
1133 * @all_multi: 1 to enable all-multi mode, 0 to disable it, -1 no change
1134 * @bcast: 1 to enable broadcast Rx, 0 to disable it, -1 no change
1135 * @vlanex: 1 to enable hardware VLAN Tag extraction, 0 to disable it,
1138 * Sets Rx properties of a virtual interface.
1140 int t4vf_set_rxmode(struct adapter *adapter, unsigned int viid,
1141 int mtu, int promisc, int all_multi, int bcast, int vlanex,
1144 struct fw_vi_rxmode_cmd cmd;
1146 /* convert to FW values */
1148 mtu = FW_VI_RXMODE_CMD_MTU_M;
1150 promisc = FW_VI_RXMODE_CMD_PROMISCEN_M;
1152 all_multi = FW_VI_RXMODE_CMD_ALLMULTIEN_M;
1154 bcast = FW_VI_RXMODE_CMD_BROADCASTEN_M;
1156 vlanex = FW_VI_RXMODE_CMD_VLANEXEN_M;
1158 memset(&cmd, 0, sizeof(cmd));
1159 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_RXMODE_CMD) |
1162 FW_VI_RXMODE_CMD_VIID_V(viid));
1163 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
1164 cmd.mtu_to_vlanexen =
1165 cpu_to_be32(FW_VI_RXMODE_CMD_MTU_V(mtu) |
1166 FW_VI_RXMODE_CMD_PROMISCEN_V(promisc) |
1167 FW_VI_RXMODE_CMD_ALLMULTIEN_V(all_multi) |
1168 FW_VI_RXMODE_CMD_BROADCASTEN_V(bcast) |
1169 FW_VI_RXMODE_CMD_VLANEXEN_V(vlanex));
1170 return t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), NULL, sleep_ok);
1174 * t4vf_alloc_mac_filt - allocates exact-match filters for MAC addresses
1175 * @adapter: the adapter
1176 * @viid: the Virtual Interface Identifier
1177 * @free: if true any existing filters for this VI id are first removed
1178 * @naddr: the number of MAC addresses to allocate filters for (up to 7)
1179 * @addr: the MAC address(es)
1180 * @idx: where to store the index of each allocated filter
1181 * @hash: pointer to hash address filter bitmap
1182 * @sleep_ok: call is allowed to sleep
1184 * Allocates an exact-match filter for each of the supplied addresses and
1185 * sets it to the corresponding address. If @idx is not %NULL it should
1186 * have at least @naddr entries, each of which will be set to the index of
1187 * the filter allocated for the corresponding MAC address. If a filter
1188 * could not be allocated for an address its index is set to 0xffff.
1189 * If @hash is not %NULL addresses that fail to allocate an exact filter
1190 * are hashed and update the hash filter bitmap pointed at by @hash.
1192 * Returns a negative error number or the number of filters allocated.
1194 int t4vf_alloc_mac_filt(struct adapter *adapter, unsigned int viid, bool free,
1195 unsigned int naddr, const u8 **addr, u16 *idx,
1196 u64 *hash, bool sleep_ok)
1198 int offset, ret = 0;
1199 unsigned nfilters = 0;
1200 unsigned int rem = naddr;
1201 struct fw_vi_mac_cmd cmd, rpl;
1202 unsigned int max_naddr = adapter->params.arch.mps_tcam_size;
1204 if (naddr > max_naddr)
1207 for (offset = 0; offset < naddr; /**/) {
1208 unsigned int fw_naddr = (rem < ARRAY_SIZE(cmd.u.exact)
1210 : ARRAY_SIZE(cmd.u.exact));
1211 size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
1212 u.exact[fw_naddr]), 16);
1213 struct fw_vi_mac_exact *p;
1216 memset(&cmd, 0, sizeof(cmd));
1217 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD) |
1220 (free ? FW_CMD_EXEC_F : 0) |
1221 FW_VI_MAC_CMD_VIID_V(viid));
1222 cmd.freemacs_to_len16 =
1223 cpu_to_be32(FW_VI_MAC_CMD_FREEMACS_V(free) |
1224 FW_CMD_LEN16_V(len16));
1226 for (i = 0, p = cmd.u.exact; i < fw_naddr; i++, p++) {
1227 p->valid_to_idx = cpu_to_be16(
1228 FW_VI_MAC_CMD_VALID_F |
1229 FW_VI_MAC_CMD_IDX_V(FW_VI_MAC_ADD_MAC));
1230 memcpy(p->macaddr, addr[offset+i], sizeof(p->macaddr));
1234 ret = t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), &rpl,
1236 if (ret && ret != -ENOMEM)
1239 for (i = 0, p = rpl.u.exact; i < fw_naddr; i++, p++) {
1240 u16 index = FW_VI_MAC_CMD_IDX_G(
1241 be16_to_cpu(p->valid_to_idx));
1248 if (index < max_naddr)
1251 *hash |= (1ULL << hash_mac_addr(addr[offset+i]));
1260 * If there were no errors or we merely ran out of room in our MAC
1261 * address arena, return the number of filters actually written.
1263 if (ret == 0 || ret == -ENOMEM)
1269 * t4vf_change_mac - modifies the exact-match filter for a MAC address
1270 * @adapter: the adapter
1271 * @viid: the Virtual Interface ID
1272 * @idx: index of existing filter for old value of MAC address, or -1
1273 * @addr: the new MAC address value
1274 * @persist: if idx < 0, the new MAC allocation should be persistent
1276 * Modifies an exact-match filter and sets it to the new MAC address.
1277 * Note that in general it is not possible to modify the value of a given
1278 * filter so the generic way to modify an address filter is to free the
1279 * one being used by the old address value and allocate a new filter for
1280 * the new address value. @idx can be -1 if the address is a new
1283 * Returns a negative error number or the index of the filter with the new
1286 int t4vf_change_mac(struct adapter *adapter, unsigned int viid,
1287 int idx, const u8 *addr, bool persist)
1290 struct fw_vi_mac_cmd cmd, rpl;
1291 struct fw_vi_mac_exact *p = &cmd.u.exact[0];
1292 size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
1294 unsigned int max_mac_addr = adapter->params.arch.mps_tcam_size;
1297 * If this is a new allocation, determine whether it should be
1298 * persistent (across a "freemacs" operation) or not.
1301 idx = persist ? FW_VI_MAC_ADD_PERSIST_MAC : FW_VI_MAC_ADD_MAC;
1303 memset(&cmd, 0, sizeof(cmd));
1304 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD) |
1307 FW_VI_MAC_CMD_VIID_V(viid));
1308 cmd.freemacs_to_len16 = cpu_to_be32(FW_CMD_LEN16_V(len16));
1309 p->valid_to_idx = cpu_to_be16(FW_VI_MAC_CMD_VALID_F |
1310 FW_VI_MAC_CMD_IDX_V(idx));
1311 memcpy(p->macaddr, addr, sizeof(p->macaddr));
1313 ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
1315 p = &rpl.u.exact[0];
1316 ret = FW_VI_MAC_CMD_IDX_G(be16_to_cpu(p->valid_to_idx));
1317 if (ret >= max_mac_addr)
1324 * t4vf_set_addr_hash - program the MAC inexact-match hash filter
1325 * @adapter: the adapter
1326 * @viid: the Virtual Interface Identifier
1327 * @ucast: whether the hash filter should also match unicast addresses
1328 * @vec: the value to be written to the hash filter
1329 * @sleep_ok: call is allowed to sleep
1331 * Sets the 64-bit inexact-match hash filter for a virtual interface.
1333 int t4vf_set_addr_hash(struct adapter *adapter, unsigned int viid,
1334 bool ucast, u64 vec, bool sleep_ok)
1336 struct fw_vi_mac_cmd cmd;
1337 size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
1340 memset(&cmd, 0, sizeof(cmd));
1341 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD) |
1344 FW_VI_ENABLE_CMD_VIID_V(viid));
1345 cmd.freemacs_to_len16 = cpu_to_be32(FW_VI_MAC_CMD_HASHVECEN_F |
1346 FW_VI_MAC_CMD_HASHUNIEN_V(ucast) |
1347 FW_CMD_LEN16_V(len16));
1348 cmd.u.hash.hashvec = cpu_to_be64(vec);
1349 return t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), NULL, sleep_ok);
1353 * t4vf_get_port_stats - collect "port" statistics
1354 * @adapter: the adapter
1355 * @pidx: the port index
1356 * @s: the stats structure to fill
1358 * Collect statistics for the "port"'s Virtual Interface.
1360 int t4vf_get_port_stats(struct adapter *adapter, int pidx,
1361 struct t4vf_port_stats *s)
1363 struct port_info *pi = adap2pinfo(adapter, pidx);
1364 struct fw_vi_stats_vf fwstats;
1365 unsigned int rem = VI_VF_NUM_STATS;
1366 __be64 *fwsp = (__be64 *)&fwstats;
1369 * Grab the Virtual Interface statistics a chunk at a time via mailbox
1370 * commands. We could use a Work Request and get all of them at once
1371 * but that's an asynchronous interface which is awkward to use.
1374 unsigned int ix = VI_VF_NUM_STATS - rem;
1375 unsigned int nstats = min(6U, rem);
1376 struct fw_vi_stats_cmd cmd, rpl;
1377 size_t len = (offsetof(struct fw_vi_stats_cmd, u) +
1378 sizeof(struct fw_vi_stats_ctl));
1379 size_t len16 = DIV_ROUND_UP(len, 16);
1382 memset(&cmd, 0, sizeof(cmd));
1383 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_STATS_CMD) |
1384 FW_VI_STATS_CMD_VIID_V(pi->viid) |
1387 cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16_V(len16));
1388 cmd.u.ctl.nstats_ix =
1389 cpu_to_be16(FW_VI_STATS_CMD_IX_V(ix) |
1390 FW_VI_STATS_CMD_NSTATS_V(nstats));
1391 ret = t4vf_wr_mbox_ns(adapter, &cmd, len, &rpl);
1395 memcpy(fwsp, &rpl.u.ctl.stat0, sizeof(__be64) * nstats);
1402 * Translate firmware statistics into host native statistics.
1404 s->tx_bcast_bytes = be64_to_cpu(fwstats.tx_bcast_bytes);
1405 s->tx_bcast_frames = be64_to_cpu(fwstats.tx_bcast_frames);
1406 s->tx_mcast_bytes = be64_to_cpu(fwstats.tx_mcast_bytes);
1407 s->tx_mcast_frames = be64_to_cpu(fwstats.tx_mcast_frames);
1408 s->tx_ucast_bytes = be64_to_cpu(fwstats.tx_ucast_bytes);
1409 s->tx_ucast_frames = be64_to_cpu(fwstats.tx_ucast_frames);
1410 s->tx_drop_frames = be64_to_cpu(fwstats.tx_drop_frames);
1411 s->tx_offload_bytes = be64_to_cpu(fwstats.tx_offload_bytes);
1412 s->tx_offload_frames = be64_to_cpu(fwstats.tx_offload_frames);
1414 s->rx_bcast_bytes = be64_to_cpu(fwstats.rx_bcast_bytes);
1415 s->rx_bcast_frames = be64_to_cpu(fwstats.rx_bcast_frames);
1416 s->rx_mcast_bytes = be64_to_cpu(fwstats.rx_mcast_bytes);
1417 s->rx_mcast_frames = be64_to_cpu(fwstats.rx_mcast_frames);
1418 s->rx_ucast_bytes = be64_to_cpu(fwstats.rx_ucast_bytes);
1419 s->rx_ucast_frames = be64_to_cpu(fwstats.rx_ucast_frames);
1421 s->rx_err_frames = be64_to_cpu(fwstats.rx_err_frames);
1427 * t4vf_iq_free - free an ingress queue and its free lists
1428 * @adapter: the adapter
1429 * @iqtype: the ingress queue type (FW_IQ_TYPE_FL_INT_CAP, etc.)
1430 * @iqid: ingress queue ID
1431 * @fl0id: FL0 queue ID or 0xffff if no attached FL0
1432 * @fl1id: FL1 queue ID or 0xffff if no attached FL1
1434 * Frees an ingress queue and its associated free lists, if any.
1436 int t4vf_iq_free(struct adapter *adapter, unsigned int iqtype,
1437 unsigned int iqid, unsigned int fl0id, unsigned int fl1id)
1439 struct fw_iq_cmd cmd;
1441 memset(&cmd, 0, sizeof(cmd));
1442 cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_IQ_CMD) |
1445 cmd.alloc_to_len16 = cpu_to_be32(FW_IQ_CMD_FREE_F |
1447 cmd.type_to_iqandstindex =
1448 cpu_to_be32(FW_IQ_CMD_TYPE_V(iqtype));
1450 cmd.iqid = cpu_to_be16(iqid);
1451 cmd.fl0id = cpu_to_be16(fl0id);
1452 cmd.fl1id = cpu_to_be16(fl1id);
1453 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1457 * t4vf_eth_eq_free - free an Ethernet egress queue
1458 * @adapter: the adapter
1459 * @eqid: egress queue ID
1461 * Frees an Ethernet egress queue.
1463 int t4vf_eth_eq_free(struct adapter *adapter, unsigned int eqid)
1465 struct fw_eq_eth_cmd cmd;
1467 memset(&cmd, 0, sizeof(cmd));
1468 cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_EQ_ETH_CMD) |
1471 cmd.alloc_to_len16 = cpu_to_be32(FW_EQ_ETH_CMD_FREE_F |
1473 cmd.eqid_pkd = cpu_to_be32(FW_EQ_ETH_CMD_EQID_V(eqid));
1474 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1478 * t4vf_handle_fw_rpl - process a firmware reply message
1479 * @adapter: the adapter
1480 * @rpl: start of the firmware message
1482 * Processes a firmware message, such as link state change messages.
1484 int t4vf_handle_fw_rpl(struct adapter *adapter, const __be64 *rpl)
1486 const struct fw_cmd_hdr *cmd_hdr = (const struct fw_cmd_hdr *)rpl;
1487 u8 opcode = FW_CMD_OP_G(be32_to_cpu(cmd_hdr->hi));
1492 * Link/module state change message.
1494 const struct fw_port_cmd *port_cmd =
1495 (const struct fw_port_cmd *)rpl;
1497 int action, port_id, link_ok, speed, fc, pidx;
1500 * Extract various fields from port status change message.
1502 action = FW_PORT_CMD_ACTION_G(
1503 be32_to_cpu(port_cmd->action_to_len16));
1504 if (action != FW_PORT_ACTION_GET_PORT_INFO) {
1505 dev_err(adapter->pdev_dev,
1506 "Unknown firmware PORT reply action %x\n",
1511 port_id = FW_PORT_CMD_PORTID_G(
1512 be32_to_cpu(port_cmd->op_to_portid));
1514 stat = be32_to_cpu(port_cmd->u.info.lstatus_to_modtype);
1515 link_ok = (stat & FW_PORT_CMD_LSTATUS_F) != 0;
1518 if (stat & FW_PORT_CMD_RXPAUSE_F)
1520 if (stat & FW_PORT_CMD_TXPAUSE_F)
1522 if (stat & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_100M))
1524 else if (stat & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_1G))
1526 else if (stat & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_10G))
1528 else if (stat & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_40G))
1532 * Scan all of our "ports" (Virtual Interfaces) looking for
1533 * those bound to the physical port which has changed. If
1534 * our recorded state doesn't match the current state,
1535 * signal that change to the OS code.
1537 for_each_port(adapter, pidx) {
1538 struct port_info *pi = adap2pinfo(adapter, pidx);
1539 struct link_config *lc;
1541 if (pi->port_id != port_id)
1546 mod = FW_PORT_CMD_MODTYPE_G(stat);
1547 if (mod != pi->mod_type) {
1549 t4vf_os_portmod_changed(adapter, pidx);
1552 if (link_ok != lc->link_ok || speed != lc->speed ||
1554 /* something changed */
1555 lc->link_ok = link_ok;
1559 be16_to_cpu(port_cmd->u.info.pcap);
1560 t4vf_os_link_changed(adapter, pidx, link_ok);
1567 dev_err(adapter->pdev_dev, "Unknown firmware reply %X\n",
1575 int t4vf_prep_adapter(struct adapter *adapter)
1578 unsigned int chipid;
1580 /* Wait for the device to become ready before proceeding ...
1582 err = t4vf_wait_dev_ready(adapter);
1586 /* Default port and clock for debugging in case we can't reach
1589 adapter->params.nports = 1;
1590 adapter->params.vfres.pmask = 1;
1591 adapter->params.vpd.cclk = 50000;
1593 adapter->params.chip = 0;
1594 switch (CHELSIO_PCI_ID_VER(adapter->pdev->device)) {
1596 adapter->params.chip |= CHELSIO_CHIP_CODE(CHELSIO_T4, 0);
1597 adapter->params.arch.sge_fl_db = DBPRIO_F;
1598 adapter->params.arch.mps_tcam_size =
1599 NUM_MPS_CLS_SRAM_L_INSTANCES;
1603 chipid = REV_G(t4_read_reg(adapter, PL_VF_REV_A));
1604 adapter->params.chip |= CHELSIO_CHIP_CODE(CHELSIO_T5, chipid);
1605 adapter->params.arch.sge_fl_db = DBPRIO_F | DBTYPE_F;
1606 adapter->params.arch.mps_tcam_size =
1607 NUM_MPS_T5_CLS_SRAM_L_INSTANCES;
1611 chipid = REV_G(t4_read_reg(adapter, PL_VF_REV_A));
1612 adapter->params.chip |= CHELSIO_CHIP_CODE(CHELSIO_T6, chipid);
1613 adapter->params.arch.sge_fl_db = 0;
1614 adapter->params.arch.mps_tcam_size =
1615 NUM_MPS_T5_CLS_SRAM_L_INSTANCES;