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:
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14 * without modification, are permitted provided that the following
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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
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29 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
30 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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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/t4fw_api.h"
45 * Wait for the device to become ready (signified by our "who am I" register
46 * returning a value other than all 1's). Return an error if it doesn't
49 int t4vf_wait_dev_ready(struct adapter *adapter)
51 const u32 whoami = T4VF_PL_BASE_ADDR + PL_VF_WHOAMI;
52 const u32 notready1 = 0xffffffff;
53 const u32 notready2 = 0xeeeeeeee;
56 val = t4_read_reg(adapter, whoami);
57 if (val != notready1 && val != notready2)
60 val = t4_read_reg(adapter, whoami);
61 if (val != notready1 && val != notready2)
68 * Get the reply to a mailbox command and store it in @rpl in big-endian order
69 * (since the firmware data structures are specified in a big-endian layout).
71 static void get_mbox_rpl(struct adapter *adapter, __be64 *rpl, int size,
74 for ( ; size; size -= 8, mbox_data += 8)
75 *rpl++ = cpu_to_be64(t4_read_reg64(adapter, mbox_data));
79 * Dump contents of mailbox with a leading tag.
81 static void dump_mbox(struct adapter *adapter, const char *tag, u32 mbox_data)
83 dev_err(adapter->pdev_dev,
84 "mbox %s: %llx %llx %llx %llx %llx %llx %llx %llx\n", tag,
85 (unsigned long long)t4_read_reg64(adapter, mbox_data + 0),
86 (unsigned long long)t4_read_reg64(adapter, mbox_data + 8),
87 (unsigned long long)t4_read_reg64(adapter, mbox_data + 16),
88 (unsigned long long)t4_read_reg64(adapter, mbox_data + 24),
89 (unsigned long long)t4_read_reg64(adapter, mbox_data + 32),
90 (unsigned long long)t4_read_reg64(adapter, mbox_data + 40),
91 (unsigned long long)t4_read_reg64(adapter, mbox_data + 48),
92 (unsigned long long)t4_read_reg64(adapter, mbox_data + 56));
96 * t4vf_wr_mbox_core - send a command to FW through the mailbox
97 * @adapter: the adapter
98 * @cmd: the command to write
99 * @size: command length in bytes
100 * @rpl: where to optionally store the reply
101 * @sleep_ok: if true we may sleep while awaiting command completion
103 * Sends the given command to FW through the mailbox and waits for the
104 * FW to execute the command. If @rpl is not %NULL it is used to store
105 * the FW's reply to the command. The command and its optional reply
106 * are of the same length. FW can take up to 500 ms to respond.
107 * @sleep_ok determines whether we may sleep while awaiting the response.
108 * If sleeping is allowed we use progressive backoff otherwise we spin.
110 * The return value is 0 on success or a negative errno on failure. A
111 * failure can happen either because we are not able to execute the
112 * command or FW executes it but signals an error. In the latter case
113 * the return value is the error code indicated by FW (negated).
115 int t4vf_wr_mbox_core(struct adapter *adapter, const void *cmd, int size,
116 void *rpl, bool sleep_ok)
118 static const int delay[] = {
119 1, 1, 3, 5, 10, 10, 20, 50, 100
123 int i, ms, delay_idx;
125 u32 mbox_data = T4VF_MBDATA_BASE_ADDR;
126 u32 mbox_ctl = T4VF_CIM_BASE_ADDR + CIM_VF_EXT_MAILBOX_CTRL;
129 * Commands must be multiples of 16 bytes in length and may not be
130 * larger than the size of the Mailbox Data register array.
132 if ((size % 16) != 0 ||
133 size > NUM_CIM_VF_MAILBOX_DATA_INSTANCES * 4)
137 * Loop trying to get ownership of the mailbox. Return an error
138 * if we can't gain ownership.
140 v = MBOWNER_GET(t4_read_reg(adapter, mbox_ctl));
141 for (i = 0; v == MBOX_OWNER_NONE && i < 3; i++)
142 v = MBOWNER_GET(t4_read_reg(adapter, mbox_ctl));
143 if (v != MBOX_OWNER_DRV)
144 return v == MBOX_OWNER_FW ? -EBUSY : -ETIMEDOUT;
147 * Write the command array into the Mailbox Data register array and
148 * transfer ownership of the mailbox to the firmware.
150 * For the VFs, the Mailbox Data "registers" are actually backed by
151 * T4's "MA" interface rather than PL Registers (as is the case for
152 * the PFs). Because these are in different coherency domains, the
153 * write to the VF's PL-register-backed Mailbox Control can race in
154 * front of the writes to the MA-backed VF Mailbox Data "registers".
155 * So we need to do a read-back on at least one byte of the VF Mailbox
156 * Data registers before doing the write to the VF Mailbox Control
159 for (i = 0, p = cmd; i < size; i += 8)
160 t4_write_reg64(adapter, mbox_data + i, be64_to_cpu(*p++));
161 t4_read_reg(adapter, mbox_data); /* flush write */
163 t4_write_reg(adapter, mbox_ctl,
164 MBMSGVALID | MBOWNER(MBOX_OWNER_FW));
165 t4_read_reg(adapter, mbox_ctl); /* flush write */
168 * Spin waiting for firmware to acknowledge processing our command.
173 for (i = 0; i < FW_CMD_MAX_TIMEOUT; i += ms) {
175 ms = delay[delay_idx];
176 if (delay_idx < ARRAY_SIZE(delay) - 1)
183 * If we're the owner, see if this is the reply we wanted.
185 v = t4_read_reg(adapter, mbox_ctl);
186 if (MBOWNER_GET(v) == MBOX_OWNER_DRV) {
188 * If the Message Valid bit isn't on, revoke ownership
189 * of the mailbox and continue waiting for our reply.
191 if ((v & MBMSGVALID) == 0) {
192 t4_write_reg(adapter, mbox_ctl,
193 MBOWNER(MBOX_OWNER_NONE));
198 * We now have our reply. Extract the command return
199 * value, copy the reply back to our caller's buffer
200 * (if specified) and revoke ownership of the mailbox.
201 * We return the (negated) firmware command return
202 * code (this depends on FW_SUCCESS == 0).
205 /* return value in low-order little-endian word */
206 v = t4_read_reg(adapter, mbox_data);
207 if (FW_CMD_RETVAL_G(v))
208 dump_mbox(adapter, "FW Error", mbox_data);
211 /* request bit in high-order BE word */
212 WARN_ON((be32_to_cpu(*(const u32 *)cmd)
213 & FW_CMD_REQUEST_F) == 0);
214 get_mbox_rpl(adapter, rpl, size, mbox_data);
215 WARN_ON((be32_to_cpu(*(u32 *)rpl)
216 & FW_CMD_REQUEST_F) != 0);
218 t4_write_reg(adapter, mbox_ctl,
219 MBOWNER(MBOX_OWNER_NONE));
220 return -FW_CMD_RETVAL_G(v);
225 * We timed out. Return the error ...
227 dump_mbox(adapter, "FW Timeout", mbox_data);
232 * hash_mac_addr - return the hash value of a MAC address
233 * @addr: the 48-bit Ethernet MAC address
235 * Hashes a MAC address according to the hash function used by hardware
236 * inexact (hash) address matching.
238 static int hash_mac_addr(const u8 *addr)
240 u32 a = ((u32)addr[0] << 16) | ((u32)addr[1] << 8) | addr[2];
241 u32 b = ((u32)addr[3] << 16) | ((u32)addr[4] << 8) | addr[5];
248 #define ADVERT_MASK (FW_PORT_CAP_SPEED_100M | FW_PORT_CAP_SPEED_1G |\
249 FW_PORT_CAP_SPEED_10G | FW_PORT_CAP_SPEED_40G | \
250 FW_PORT_CAP_SPEED_100G | FW_PORT_CAP_ANEG)
253 * init_link_config - initialize a link's SW state
254 * @lc: structure holding the link state
255 * @caps: link capabilities
257 * Initializes the SW state maintained for each link, including the link's
258 * capabilities and default speed/flow-control/autonegotiation settings.
260 static void init_link_config(struct link_config *lc, unsigned int caps)
262 lc->supported = caps;
263 lc->requested_speed = 0;
265 lc->requested_fc = lc->fc = PAUSE_RX | PAUSE_TX;
266 if (lc->supported & FW_PORT_CAP_ANEG) {
267 lc->advertising = lc->supported & ADVERT_MASK;
268 lc->autoneg = AUTONEG_ENABLE;
269 lc->requested_fc |= PAUSE_AUTONEG;
272 lc->autoneg = AUTONEG_DISABLE;
277 * t4vf_port_init - initialize port hardware/software state
278 * @adapter: the adapter
279 * @pidx: the adapter port index
281 int t4vf_port_init(struct adapter *adapter, int pidx)
283 struct port_info *pi = adap2pinfo(adapter, pidx);
284 struct fw_vi_cmd vi_cmd, vi_rpl;
285 struct fw_port_cmd port_cmd, port_rpl;
289 * Execute a VI Read command to get our Virtual Interface information
290 * like MAC address, etc.
292 memset(&vi_cmd, 0, sizeof(vi_cmd));
293 vi_cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_VI_CMD) |
296 vi_cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(vi_cmd));
297 vi_cmd.type_viid = cpu_to_be16(FW_VI_CMD_VIID_V(pi->viid));
298 v = t4vf_wr_mbox(adapter, &vi_cmd, sizeof(vi_cmd), &vi_rpl);
302 BUG_ON(pi->port_id != FW_VI_CMD_PORTID_G(vi_rpl.portid_pkd));
303 pi->rss_size = FW_VI_CMD_RSSSIZE_G(be16_to_cpu(vi_rpl.rsssize_pkd));
304 t4_os_set_hw_addr(adapter, pidx, vi_rpl.mac);
307 * If we don't have read access to our port information, we're done
308 * now. Otherwise, execute a PORT Read command to get it ...
310 if (!(adapter->params.vfres.r_caps & FW_CMD_CAP_PORT))
313 memset(&port_cmd, 0, sizeof(port_cmd));
314 port_cmd.op_to_portid = cpu_to_be32(FW_CMD_OP_V(FW_PORT_CMD) |
317 FW_PORT_CMD_PORTID_V(pi->port_id));
318 port_cmd.action_to_len16 =
319 cpu_to_be32(FW_PORT_CMD_ACTION_V(FW_PORT_ACTION_GET_PORT_INFO) |
321 v = t4vf_wr_mbox(adapter, &port_cmd, sizeof(port_cmd), &port_rpl);
325 v = be32_to_cpu(port_rpl.u.info.lstatus_to_modtype);
326 pi->mdio_addr = (v & FW_PORT_CMD_MDIOCAP_F) ?
327 FW_PORT_CMD_MDIOADDR_G(v) : -1;
328 pi->port_type = FW_PORT_CMD_PTYPE_G(v);
329 pi->mod_type = FW_PORT_MOD_TYPE_NA;
331 init_link_config(&pi->link_cfg, be16_to_cpu(port_rpl.u.info.pcap));
337 * t4vf_fw_reset - issue a reset to FW
338 * @adapter: the adapter
340 * Issues a reset command to FW. For a Physical Function this would
341 * result in the Firmware reseting all of its state. For a Virtual
342 * Function this just resets the state associated with the VF.
344 int t4vf_fw_reset(struct adapter *adapter)
346 struct fw_reset_cmd cmd;
348 memset(&cmd, 0, sizeof(cmd));
349 cmd.op_to_write = cpu_to_be32(FW_CMD_OP_V(FW_RESET_CMD) |
351 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
352 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
356 * t4vf_query_params - query FW or device parameters
357 * @adapter: the adapter
358 * @nparams: the number of parameters
359 * @params: the parameter names
360 * @vals: the parameter values
362 * Reads the values of firmware or device parameters. Up to 7 parameters
363 * can be queried at once.
365 static int t4vf_query_params(struct adapter *adapter, unsigned int nparams,
366 const u32 *params, u32 *vals)
369 struct fw_params_cmd cmd, rpl;
370 struct fw_params_param *p;
376 memset(&cmd, 0, sizeof(cmd));
377 cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_PARAMS_CMD) |
380 len16 = DIV_ROUND_UP(offsetof(struct fw_params_cmd,
381 param[nparams].mnem), 16);
382 cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16_V(len16));
383 for (i = 0, p = &cmd.param[0]; i < nparams; i++, p++)
384 p->mnem = htonl(*params++);
386 ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
388 for (i = 0, p = &rpl.param[0]; i < nparams; i++, p++)
389 *vals++ = be32_to_cpu(p->val);
394 * t4vf_set_params - sets FW or device parameters
395 * @adapter: the adapter
396 * @nparams: the number of parameters
397 * @params: the parameter names
398 * @vals: the parameter values
400 * Sets the values of firmware or device parameters. Up to 7 parameters
401 * can be specified at once.
403 int t4vf_set_params(struct adapter *adapter, unsigned int nparams,
404 const u32 *params, const u32 *vals)
407 struct fw_params_cmd cmd;
408 struct fw_params_param *p;
414 memset(&cmd, 0, sizeof(cmd));
415 cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_PARAMS_CMD) |
418 len16 = DIV_ROUND_UP(offsetof(struct fw_params_cmd,
419 param[nparams]), 16);
420 cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16_V(len16));
421 for (i = 0, p = &cmd.param[0]; i < nparams; i++, p++) {
422 p->mnem = cpu_to_be32(*params++);
423 p->val = cpu_to_be32(*vals++);
426 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
430 * t4_bar2_sge_qregs - return BAR2 SGE Queue register information
431 * @adapter: the adapter
433 * @qtype: the Ingress or Egress type for @qid
434 * @pbar2_qoffset: BAR2 Queue Offset
435 * @pbar2_qid: BAR2 Queue ID or 0 for Queue ID inferred SGE Queues
437 * Returns the BAR2 SGE Queue Registers information associated with the
438 * indicated Absolute Queue ID. These are passed back in return value
439 * pointers. @qtype should be T4_BAR2_QTYPE_EGRESS for Egress Queue
440 * and T4_BAR2_QTYPE_INGRESS for Ingress Queues.
442 * This may return an error which indicates that BAR2 SGE Queue
443 * registers aren't available. If an error is not returned, then the
444 * following values are returned:
446 * *@pbar2_qoffset: the BAR2 Offset of the @qid Registers
447 * *@pbar2_qid: the BAR2 SGE Queue ID or 0 of @qid
449 * If the returned BAR2 Queue ID is 0, then BAR2 SGE registers which
450 * require the "Inferred Queue ID" ability may be used. E.g. the
451 * Write Combining Doorbell Buffer. If the BAR2 Queue ID is not 0,
452 * then these "Inferred Queue ID" register may not be used.
454 int t4_bar2_sge_qregs(struct adapter *adapter,
456 enum t4_bar2_qtype qtype,
458 unsigned int *pbar2_qid)
460 unsigned int page_shift, page_size, qpp_shift, qpp_mask;
461 u64 bar2_page_offset, bar2_qoffset;
462 unsigned int bar2_qid, bar2_qid_offset, bar2_qinferred;
464 /* T4 doesn't support BAR2 SGE Queue registers.
466 if (is_t4(adapter->params.chip))
469 /* Get our SGE Page Size parameters.
471 page_shift = adapter->params.sge.sge_vf_hps + 10;
472 page_size = 1 << page_shift;
474 /* Get the right Queues per Page parameters for our Queue.
476 qpp_shift = (qtype == T4_BAR2_QTYPE_EGRESS
477 ? adapter->params.sge.sge_vf_eq_qpp
478 : adapter->params.sge.sge_vf_iq_qpp);
479 qpp_mask = (1 << qpp_shift) - 1;
481 /* Calculate the basics of the BAR2 SGE Queue register area:
482 * o The BAR2 page the Queue registers will be in.
483 * o The BAR2 Queue ID.
484 * o The BAR2 Queue ID Offset into the BAR2 page.
486 bar2_page_offset = ((qid >> qpp_shift) << page_shift);
487 bar2_qid = qid & qpp_mask;
488 bar2_qid_offset = bar2_qid * SGE_UDB_SIZE;
490 /* If the BAR2 Queue ID Offset is less than the Page Size, then the
491 * hardware will infer the Absolute Queue ID simply from the writes to
492 * the BAR2 Queue ID Offset within the BAR2 Page (and we need to use a
493 * BAR2 Queue ID of 0 for those writes). Otherwise, we'll simply
494 * write to the first BAR2 SGE Queue Area within the BAR2 Page with
495 * the BAR2 Queue ID and the hardware will infer the Absolute Queue ID
496 * from the BAR2 Page and BAR2 Queue ID.
498 * One important censequence of this is that some BAR2 SGE registers
499 * have a "Queue ID" field and we can write the BAR2 SGE Queue ID
500 * there. But other registers synthesize the SGE Queue ID purely
501 * from the writes to the registers -- the Write Combined Doorbell
502 * Buffer is a good example. These BAR2 SGE Registers are only
503 * available for those BAR2 SGE Register areas where the SGE Absolute
504 * Queue ID can be inferred from simple writes.
506 bar2_qoffset = bar2_page_offset;
507 bar2_qinferred = (bar2_qid_offset < page_size);
508 if (bar2_qinferred) {
509 bar2_qoffset += bar2_qid_offset;
513 *pbar2_qoffset = bar2_qoffset;
514 *pbar2_qid = bar2_qid;
519 * t4vf_get_sge_params - retrieve adapter Scatter gather Engine parameters
520 * @adapter: the adapter
522 * Retrieves various core SGE parameters in the form of hardware SGE
523 * register values. The caller is responsible for decoding these as
524 * needed. The SGE parameters are stored in @adapter->params.sge.
526 int t4vf_get_sge_params(struct adapter *adapter)
528 struct sge_params *sge_params = &adapter->params.sge;
529 u32 params[7], vals[7];
532 params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
533 FW_PARAMS_PARAM_XYZ_V(SGE_CONTROL));
534 params[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
535 FW_PARAMS_PARAM_XYZ_V(SGE_HOST_PAGE_SIZE));
536 params[2] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
537 FW_PARAMS_PARAM_XYZ_V(SGE_FL_BUFFER_SIZE0));
538 params[3] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
539 FW_PARAMS_PARAM_XYZ_V(SGE_FL_BUFFER_SIZE1));
540 params[4] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
541 FW_PARAMS_PARAM_XYZ_V(SGE_TIMER_VALUE_0_AND_1));
542 params[5] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
543 FW_PARAMS_PARAM_XYZ_V(SGE_TIMER_VALUE_2_AND_3));
544 params[6] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
545 FW_PARAMS_PARAM_XYZ_V(SGE_TIMER_VALUE_4_AND_5));
546 v = t4vf_query_params(adapter, 7, params, vals);
549 sge_params->sge_control = vals[0];
550 sge_params->sge_host_page_size = vals[1];
551 sge_params->sge_fl_buffer_size[0] = vals[2];
552 sge_params->sge_fl_buffer_size[1] = vals[3];
553 sge_params->sge_timer_value_0_and_1 = vals[4];
554 sge_params->sge_timer_value_2_and_3 = vals[5];
555 sge_params->sge_timer_value_4_and_5 = vals[6];
557 /* T4 uses a single control field to specify both the PCIe Padding and
558 * Packing Boundary. T5 introduced the ability to specify these
559 * separately with the Padding Boundary in SGE_CONTROL and and Packing
560 * Boundary in SGE_CONTROL2. So for T5 and later we need to grab
561 * SGE_CONTROL in order to determine how ingress packet data will be
562 * laid out in Packed Buffer Mode. Unfortunately, older versions of
563 * the firmware won't let us retrieve SGE_CONTROL2 so if we get a
564 * failure grabbing it we throw an error since we can't figure out the
567 if (!is_t4(adapter->params.chip)) {
568 params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
569 FW_PARAMS_PARAM_XYZ_V(SGE_CONTROL2_A));
570 v = t4vf_query_params(adapter, 1, params, vals);
571 if (v != FW_SUCCESS) {
572 dev_err(adapter->pdev_dev,
573 "Unable to get SGE Control2; "
574 "probably old firmware.\n");
577 sge_params->sge_control2 = vals[0];
580 params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
581 FW_PARAMS_PARAM_XYZ_V(SGE_INGRESS_RX_THRESHOLD));
582 params[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
583 FW_PARAMS_PARAM_XYZ_V(SGE_CONM_CTRL));
584 v = t4vf_query_params(adapter, 2, params, vals);
587 sge_params->sge_ingress_rx_threshold = vals[0];
588 sge_params->sge_congestion_control = vals[1];
590 /* For T5 and later we want to use the new BAR2 Doorbells.
591 * Unfortunately, older firmware didn't allow the this register to be
594 if (!is_t4(adapter->params.chip)) {
596 unsigned int pf, s_hps, s_qpp;
598 params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
599 FW_PARAMS_PARAM_XYZ_V(
600 SGE_EGRESS_QUEUES_PER_PAGE_VF_A));
601 params[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
602 FW_PARAMS_PARAM_XYZ_V(
603 SGE_INGRESS_QUEUES_PER_PAGE_VF_A));
604 v = t4vf_query_params(adapter, 2, params, vals);
605 if (v != FW_SUCCESS) {
606 dev_warn(adapter->pdev_dev,
607 "Unable to get VF SGE Queues/Page; "
608 "probably old firmware.\n");
611 sge_params->sge_egress_queues_per_page = vals[0];
612 sge_params->sge_ingress_queues_per_page = vals[1];
614 /* We need the Queues/Page for our VF. This is based on the
615 * PF from which we're instantiated and is indexed in the
616 * register we just read. Do it once here so other code in
617 * the driver can just use it.
619 whoami = t4_read_reg(adapter,
620 T4VF_PL_BASE_ADDR + A_PL_VF_WHOAMI);
621 pf = SOURCEPF_GET(whoami);
623 s_hps = (HOSTPAGESIZEPF0_S +
624 (HOSTPAGESIZEPF1_S - HOSTPAGESIZEPF0_S) * pf);
625 sge_params->sge_vf_hps =
626 ((sge_params->sge_host_page_size >> s_hps)
627 & HOSTPAGESIZEPF0_M);
629 s_qpp = (QUEUESPERPAGEPF0_S +
630 (QUEUESPERPAGEPF1_S - QUEUESPERPAGEPF0_S) * pf);
631 sge_params->sge_vf_eq_qpp =
632 ((sge_params->sge_egress_queues_per_page >> s_qpp)
633 & QUEUESPERPAGEPF0_MASK);
634 sge_params->sge_vf_iq_qpp =
635 ((sge_params->sge_ingress_queues_per_page >> s_qpp)
636 & QUEUESPERPAGEPF0_MASK);
643 * t4vf_get_vpd_params - retrieve device VPD paremeters
644 * @adapter: the adapter
646 * Retrives various device Vital Product Data parameters. The parameters
647 * are stored in @adapter->params.vpd.
649 int t4vf_get_vpd_params(struct adapter *adapter)
651 struct vpd_params *vpd_params = &adapter->params.vpd;
652 u32 params[7], vals[7];
655 params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) |
656 FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_CCLK));
657 v = t4vf_query_params(adapter, 1, params, vals);
660 vpd_params->cclk = vals[0];
666 * t4vf_get_dev_params - retrieve device paremeters
667 * @adapter: the adapter
669 * Retrives various device parameters. The parameters are stored in
670 * @adapter->params.dev.
672 int t4vf_get_dev_params(struct adapter *adapter)
674 struct dev_params *dev_params = &adapter->params.dev;
675 u32 params[7], vals[7];
678 params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) |
679 FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_FWREV));
680 params[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) |
681 FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_TPREV));
682 v = t4vf_query_params(adapter, 2, params, vals);
685 dev_params->fwrev = vals[0];
686 dev_params->tprev = vals[1];
692 * t4vf_get_rss_glb_config - retrieve adapter RSS Global Configuration
693 * @adapter: the adapter
695 * Retrieves global RSS mode and parameters with which we have to live
696 * and stores them in the @adapter's RSS parameters.
698 int t4vf_get_rss_glb_config(struct adapter *adapter)
700 struct rss_params *rss = &adapter->params.rss;
701 struct fw_rss_glb_config_cmd cmd, rpl;
705 * Execute an RSS Global Configuration read command to retrieve
706 * our RSS configuration.
708 memset(&cmd, 0, sizeof(cmd));
709 cmd.op_to_write = cpu_to_be32(FW_CMD_OP_V(FW_RSS_GLB_CONFIG_CMD) |
712 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
713 v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
718 * Transate the big-endian RSS Global Configuration into our
719 * cpu-endian format based on the RSS mode. We also do first level
720 * filtering at this point to weed out modes which don't support
723 rss->mode = FW_RSS_GLB_CONFIG_CMD_MODE_G(
724 be32_to_cpu(rpl.u.manual.mode_pkd));
726 case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: {
727 u32 word = be32_to_cpu(
728 rpl.u.basicvirtual.synmapen_to_hashtoeplitz);
730 rss->u.basicvirtual.synmapen =
731 ((word & FW_RSS_GLB_CONFIG_CMD_SYNMAPEN_F) != 0);
732 rss->u.basicvirtual.syn4tupenipv6 =
733 ((word & FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV6_F) != 0);
734 rss->u.basicvirtual.syn2tupenipv6 =
735 ((word & FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV6_F) != 0);
736 rss->u.basicvirtual.syn4tupenipv4 =
737 ((word & FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV4_F) != 0);
738 rss->u.basicvirtual.syn2tupenipv4 =
739 ((word & FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV4_F) != 0);
741 rss->u.basicvirtual.ofdmapen =
742 ((word & FW_RSS_GLB_CONFIG_CMD_OFDMAPEN_F) != 0);
744 rss->u.basicvirtual.tnlmapen =
745 ((word & FW_RSS_GLB_CONFIG_CMD_TNLMAPEN_F) != 0);
746 rss->u.basicvirtual.tnlalllookup =
747 ((word & FW_RSS_GLB_CONFIG_CMD_TNLALLLKP_F) != 0);
749 rss->u.basicvirtual.hashtoeplitz =
750 ((word & FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ_F) != 0);
752 /* we need at least Tunnel Map Enable to be set */
753 if (!rss->u.basicvirtual.tnlmapen)
759 /* all unknown/unsupported RSS modes result in an error */
767 * t4vf_get_vfres - retrieve VF resource limits
768 * @adapter: the adapter
770 * Retrieves configured resource limits and capabilities for a virtual
771 * function. The results are stored in @adapter->vfres.
773 int t4vf_get_vfres(struct adapter *adapter)
775 struct vf_resources *vfres = &adapter->params.vfres;
776 struct fw_pfvf_cmd cmd, rpl;
781 * Execute PFVF Read command to get VF resource limits; bail out early
782 * with error on command failure.
784 memset(&cmd, 0, sizeof(cmd));
785 cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_PFVF_CMD) |
788 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
789 v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
794 * Extract VF resource limits and return success.
796 word = be32_to_cpu(rpl.niqflint_niq);
797 vfres->niqflint = FW_PFVF_CMD_NIQFLINT_G(word);
798 vfres->niq = FW_PFVF_CMD_NIQ_G(word);
800 word = be32_to_cpu(rpl.type_to_neq);
801 vfres->neq = FW_PFVF_CMD_NEQ_G(word);
802 vfres->pmask = FW_PFVF_CMD_PMASK_G(word);
804 word = be32_to_cpu(rpl.tc_to_nexactf);
805 vfres->tc = FW_PFVF_CMD_TC_G(word);
806 vfres->nvi = FW_PFVF_CMD_NVI_G(word);
807 vfres->nexactf = FW_PFVF_CMD_NEXACTF_G(word);
809 word = be32_to_cpu(rpl.r_caps_to_nethctrl);
810 vfres->r_caps = FW_PFVF_CMD_R_CAPS_G(word);
811 vfres->wx_caps = FW_PFVF_CMD_WX_CAPS_G(word);
812 vfres->nethctrl = FW_PFVF_CMD_NETHCTRL_G(word);
818 * t4vf_read_rss_vi_config - read a VI's RSS configuration
819 * @adapter: the adapter
820 * @viid: Virtual Interface ID
821 * @config: pointer to host-native VI RSS Configuration buffer
823 * Reads the Virtual Interface's RSS configuration information and
824 * translates it into CPU-native format.
826 int t4vf_read_rss_vi_config(struct adapter *adapter, unsigned int viid,
827 union rss_vi_config *config)
829 struct fw_rss_vi_config_cmd cmd, rpl;
832 memset(&cmd, 0, sizeof(cmd));
833 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_RSS_VI_CONFIG_CMD) |
836 FW_RSS_VI_CONFIG_CMD_VIID(viid));
837 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
838 v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
842 switch (adapter->params.rss.mode) {
843 case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: {
844 u32 word = be32_to_cpu(rpl.u.basicvirtual.defaultq_to_udpen);
846 config->basicvirtual.ip6fourtupen =
847 ((word & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN_F) != 0);
848 config->basicvirtual.ip6twotupen =
849 ((word & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN_F) != 0);
850 config->basicvirtual.ip4fourtupen =
851 ((word & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN_F) != 0);
852 config->basicvirtual.ip4twotupen =
853 ((word & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN_F) != 0);
854 config->basicvirtual.udpen =
855 ((word & FW_RSS_VI_CONFIG_CMD_UDPEN_F) != 0);
856 config->basicvirtual.defaultq =
857 FW_RSS_VI_CONFIG_CMD_DEFAULTQ_G(word);
869 * t4vf_write_rss_vi_config - write a VI's RSS configuration
870 * @adapter: the adapter
871 * @viid: Virtual Interface ID
872 * @config: pointer to host-native VI RSS Configuration buffer
874 * Write the Virtual Interface's RSS configuration information
875 * (translating it into firmware-native format before writing).
877 int t4vf_write_rss_vi_config(struct adapter *adapter, unsigned int viid,
878 union rss_vi_config *config)
880 struct fw_rss_vi_config_cmd cmd, rpl;
882 memset(&cmd, 0, sizeof(cmd));
883 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_RSS_VI_CONFIG_CMD) |
886 FW_RSS_VI_CONFIG_CMD_VIID(viid));
887 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
888 switch (adapter->params.rss.mode) {
889 case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: {
892 if (config->basicvirtual.ip6fourtupen)
893 word |= FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN_F;
894 if (config->basicvirtual.ip6twotupen)
895 word |= FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN_F;
896 if (config->basicvirtual.ip4fourtupen)
897 word |= FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN_F;
898 if (config->basicvirtual.ip4twotupen)
899 word |= FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN_F;
900 if (config->basicvirtual.udpen)
901 word |= FW_RSS_VI_CONFIG_CMD_UDPEN_F;
902 word |= FW_RSS_VI_CONFIG_CMD_DEFAULTQ_V(
903 config->basicvirtual.defaultq);
904 cmd.u.basicvirtual.defaultq_to_udpen = cpu_to_be32(word);
912 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
916 * t4vf_config_rss_range - configure a portion of the RSS mapping table
917 * @adapter: the adapter
918 * @viid: Virtual Interface of RSS Table Slice
919 * @start: starting entry in the table to write
920 * @n: how many table entries to write
921 * @rspq: values for the "Response Queue" (Ingress Queue) lookup table
922 * @nrspq: number of values in @rspq
924 * Programs the selected part of the VI's RSS mapping table with the
925 * provided values. If @nrspq < @n the supplied values are used repeatedly
926 * until the full table range is populated.
928 * The caller must ensure the values in @rspq are in the range 0..1023.
930 int t4vf_config_rss_range(struct adapter *adapter, unsigned int viid,
931 int start, int n, const u16 *rspq, int nrspq)
933 const u16 *rsp = rspq;
934 const u16 *rsp_end = rspq+nrspq;
935 struct fw_rss_ind_tbl_cmd cmd;
938 * Initialize firmware command template to write the RSS table.
940 memset(&cmd, 0, sizeof(cmd));
941 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_RSS_IND_TBL_CMD) |
944 FW_RSS_IND_TBL_CMD_VIID_V(viid));
945 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
948 * Each firmware RSS command can accommodate up to 32 RSS Ingress
949 * Queue Identifiers. These Ingress Queue IDs are packed three to
950 * a 32-bit word as 10-bit values with the upper remaining 2 bits
954 __be32 *qp = &cmd.iq0_to_iq2;
959 * Set up the firmware RSS command header to send the next
960 * "nq" Ingress Queue IDs to the firmware.
962 cmd.niqid = cpu_to_be16(nq);
963 cmd.startidx = cpu_to_be16(start);
966 * "nq" more done for the start of the next loop.
972 * While there are still Ingress Queue IDs to stuff into the
973 * current firmware RSS command, retrieve them from the
974 * Ingress Queue ID array and insert them into the command.
978 * Grab up to the next 3 Ingress Queue IDs (wrapping
979 * around the Ingress Queue ID array if necessary) and
980 * insert them into the firmware RSS command at the
981 * current 3-tuple position within the commad.
985 int nqbuf = min(3, nq);
988 qbuf[0] = qbuf[1] = qbuf[2] = 0;
995 *qp++ = cpu_to_be32(FW_RSS_IND_TBL_CMD_IQ0_V(qbuf[0]) |
996 FW_RSS_IND_TBL_CMD_IQ1_V(qbuf[1]) |
997 FW_RSS_IND_TBL_CMD_IQ2_V(qbuf[2]));
1001 * Send this portion of the RRS table update to the firmware;
1002 * bail out on any errors.
1004 ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1012 * t4vf_alloc_vi - allocate a virtual interface on a port
1013 * @adapter: the adapter
1014 * @port_id: physical port associated with the VI
1016 * Allocate a new Virtual Interface and bind it to the indicated
1017 * physical port. Return the new Virtual Interface Identifier on
1018 * success, or a [negative] error number on failure.
1020 int t4vf_alloc_vi(struct adapter *adapter, int port_id)
1022 struct fw_vi_cmd cmd, rpl;
1026 * Execute a VI command to allocate Virtual Interface and return its
1029 memset(&cmd, 0, sizeof(cmd));
1030 cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_VI_CMD) |
1034 cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(cmd) |
1036 cmd.portid_pkd = FW_VI_CMD_PORTID_V(port_id);
1037 v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
1041 return FW_VI_CMD_VIID_G(be16_to_cpu(rpl.type_viid));
1045 * t4vf_free_vi -- free a virtual interface
1046 * @adapter: the adapter
1047 * @viid: the virtual interface identifier
1049 * Free a previously allocated Virtual Interface. Return an error on
1052 int t4vf_free_vi(struct adapter *adapter, int viid)
1054 struct fw_vi_cmd cmd;
1057 * Execute a VI command to free the Virtual Interface.
1059 memset(&cmd, 0, sizeof(cmd));
1060 cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_VI_CMD) |
1063 cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(cmd) |
1065 cmd.type_viid = cpu_to_be16(FW_VI_CMD_VIID_V(viid));
1066 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1070 * t4vf_enable_vi - enable/disable a virtual interface
1071 * @adapter: the adapter
1072 * @viid: the Virtual Interface ID
1073 * @rx_en: 1=enable Rx, 0=disable Rx
1074 * @tx_en: 1=enable Tx, 0=disable Tx
1076 * Enables/disables a virtual interface.
1078 int t4vf_enable_vi(struct adapter *adapter, unsigned int viid,
1079 bool rx_en, bool tx_en)
1081 struct fw_vi_enable_cmd cmd;
1083 memset(&cmd, 0, sizeof(cmd));
1084 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_ENABLE_CMD) |
1087 FW_VI_ENABLE_CMD_VIID_V(viid));
1088 cmd.ien_to_len16 = cpu_to_be32(FW_VI_ENABLE_CMD_IEN_V(rx_en) |
1089 FW_VI_ENABLE_CMD_EEN_V(tx_en) |
1091 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1095 * t4vf_identify_port - identify a VI's port by blinking its LED
1096 * @adapter: the adapter
1097 * @viid: the Virtual Interface ID
1098 * @nblinks: how many times to blink LED at 2.5 Hz
1100 * Identifies a VI's port by blinking its LED.
1102 int t4vf_identify_port(struct adapter *adapter, unsigned int viid,
1103 unsigned int nblinks)
1105 struct fw_vi_enable_cmd cmd;
1107 memset(&cmd, 0, sizeof(cmd));
1108 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_ENABLE_CMD) |
1111 FW_VI_ENABLE_CMD_VIID_V(viid));
1112 cmd.ien_to_len16 = cpu_to_be32(FW_VI_ENABLE_CMD_LED_F |
1114 cmd.blinkdur = cpu_to_be16(nblinks);
1115 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1119 * t4vf_set_rxmode - set Rx properties of a virtual interface
1120 * @adapter: the adapter
1122 * @mtu: the new MTU or -1 for no change
1123 * @promisc: 1 to enable promiscuous mode, 0 to disable it, -1 no change
1124 * @all_multi: 1 to enable all-multi mode, 0 to disable it, -1 no change
1125 * @bcast: 1 to enable broadcast Rx, 0 to disable it, -1 no change
1126 * @vlanex: 1 to enable hardware VLAN Tag extraction, 0 to disable it,
1129 * Sets Rx properties of a virtual interface.
1131 int t4vf_set_rxmode(struct adapter *adapter, unsigned int viid,
1132 int mtu, int promisc, int all_multi, int bcast, int vlanex,
1135 struct fw_vi_rxmode_cmd cmd;
1137 /* convert to FW values */
1139 mtu = FW_VI_RXMODE_CMD_MTU_M;
1141 promisc = FW_VI_RXMODE_CMD_PROMISCEN_M;
1143 all_multi = FW_VI_RXMODE_CMD_ALLMULTIEN_M;
1145 bcast = FW_VI_RXMODE_CMD_BROADCASTEN_M;
1147 vlanex = FW_VI_RXMODE_CMD_VLANEXEN_M;
1149 memset(&cmd, 0, sizeof(cmd));
1150 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_RXMODE_CMD) |
1153 FW_VI_RXMODE_CMD_VIID_V(viid));
1154 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
1155 cmd.mtu_to_vlanexen =
1156 cpu_to_be32(FW_VI_RXMODE_CMD_MTU_V(mtu) |
1157 FW_VI_RXMODE_CMD_PROMISCEN_V(promisc) |
1158 FW_VI_RXMODE_CMD_ALLMULTIEN_V(all_multi) |
1159 FW_VI_RXMODE_CMD_BROADCASTEN_V(bcast) |
1160 FW_VI_RXMODE_CMD_VLANEXEN_V(vlanex));
1161 return t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), NULL, sleep_ok);
1165 * t4vf_alloc_mac_filt - allocates exact-match filters for MAC addresses
1166 * @adapter: the adapter
1167 * @viid: the Virtual Interface Identifier
1168 * @free: if true any existing filters for this VI id are first removed
1169 * @naddr: the number of MAC addresses to allocate filters for (up to 7)
1170 * @addr: the MAC address(es)
1171 * @idx: where to store the index of each allocated filter
1172 * @hash: pointer to hash address filter bitmap
1173 * @sleep_ok: call is allowed to sleep
1175 * Allocates an exact-match filter for each of the supplied addresses and
1176 * sets it to the corresponding address. If @idx is not %NULL it should
1177 * have at least @naddr entries, each of which will be set to the index of
1178 * the filter allocated for the corresponding MAC address. If a filter
1179 * could not be allocated for an address its index is set to 0xffff.
1180 * If @hash is not %NULL addresses that fail to allocate an exact filter
1181 * are hashed and update the hash filter bitmap pointed at by @hash.
1183 * Returns a negative error number or the number of filters allocated.
1185 int t4vf_alloc_mac_filt(struct adapter *adapter, unsigned int viid, bool free,
1186 unsigned int naddr, const u8 **addr, u16 *idx,
1187 u64 *hash, bool sleep_ok)
1189 int offset, ret = 0;
1190 unsigned nfilters = 0;
1191 unsigned int rem = naddr;
1192 struct fw_vi_mac_cmd cmd, rpl;
1193 unsigned int max_naddr = is_t4(adapter->params.chip) ?
1194 NUM_MPS_CLS_SRAM_L_INSTANCES :
1195 NUM_MPS_T5_CLS_SRAM_L_INSTANCES;
1197 if (naddr > max_naddr)
1200 for (offset = 0; offset < naddr; /**/) {
1201 unsigned int fw_naddr = (rem < ARRAY_SIZE(cmd.u.exact)
1203 : ARRAY_SIZE(cmd.u.exact));
1204 size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
1205 u.exact[fw_naddr]), 16);
1206 struct fw_vi_mac_exact *p;
1209 memset(&cmd, 0, sizeof(cmd));
1210 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD) |
1213 (free ? FW_CMD_EXEC_F : 0) |
1214 FW_VI_MAC_CMD_VIID_V(viid));
1215 cmd.freemacs_to_len16 =
1216 cpu_to_be32(FW_VI_MAC_CMD_FREEMACS_V(free) |
1217 FW_CMD_LEN16_V(len16));
1219 for (i = 0, p = cmd.u.exact; i < fw_naddr; i++, p++) {
1220 p->valid_to_idx = cpu_to_be16(
1221 FW_VI_MAC_CMD_VALID_F |
1222 FW_VI_MAC_CMD_IDX_V(FW_VI_MAC_ADD_MAC));
1223 memcpy(p->macaddr, addr[offset+i], sizeof(p->macaddr));
1227 ret = t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), &rpl,
1229 if (ret && ret != -ENOMEM)
1232 for (i = 0, p = rpl.u.exact; i < fw_naddr; i++, p++) {
1233 u16 index = FW_VI_MAC_CMD_IDX_G(
1234 be16_to_cpu(p->valid_to_idx));
1241 if (index < max_naddr)
1244 *hash |= (1ULL << hash_mac_addr(addr[offset+i]));
1253 * If there were no errors or we merely ran out of room in our MAC
1254 * address arena, return the number of filters actually written.
1256 if (ret == 0 || ret == -ENOMEM)
1262 * t4vf_change_mac - modifies the exact-match filter for a MAC address
1263 * @adapter: the adapter
1264 * @viid: the Virtual Interface ID
1265 * @idx: index of existing filter for old value of MAC address, or -1
1266 * @addr: the new MAC address value
1267 * @persist: if idx < 0, the new MAC allocation should be persistent
1269 * Modifies an exact-match filter and sets it to the new MAC address.
1270 * Note that in general it is not possible to modify the value of a given
1271 * filter so the generic way to modify an address filter is to free the
1272 * one being used by the old address value and allocate a new filter for
1273 * the new address value. @idx can be -1 if the address is a new
1276 * Returns a negative error number or the index of the filter with the new
1279 int t4vf_change_mac(struct adapter *adapter, unsigned int viid,
1280 int idx, const u8 *addr, bool persist)
1283 struct fw_vi_mac_cmd cmd, rpl;
1284 struct fw_vi_mac_exact *p = &cmd.u.exact[0];
1285 size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
1287 unsigned int max_naddr = is_t4(adapter->params.chip) ?
1288 NUM_MPS_CLS_SRAM_L_INSTANCES :
1289 NUM_MPS_T5_CLS_SRAM_L_INSTANCES;
1292 * If this is a new allocation, determine whether it should be
1293 * persistent (across a "freemacs" operation) or not.
1296 idx = persist ? FW_VI_MAC_ADD_PERSIST_MAC : FW_VI_MAC_ADD_MAC;
1298 memset(&cmd, 0, sizeof(cmd));
1299 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD) |
1302 FW_VI_MAC_CMD_VIID_V(viid));
1303 cmd.freemacs_to_len16 = cpu_to_be32(FW_CMD_LEN16_V(len16));
1304 p->valid_to_idx = cpu_to_be16(FW_VI_MAC_CMD_VALID_F |
1305 FW_VI_MAC_CMD_IDX_V(idx));
1306 memcpy(p->macaddr, addr, sizeof(p->macaddr));
1308 ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
1310 p = &rpl.u.exact[0];
1311 ret = FW_VI_MAC_CMD_IDX_G(be16_to_cpu(p->valid_to_idx));
1312 if (ret >= max_naddr)
1319 * t4vf_set_addr_hash - program the MAC inexact-match hash filter
1320 * @adapter: the adapter
1321 * @viid: the Virtual Interface Identifier
1322 * @ucast: whether the hash filter should also match unicast addresses
1323 * @vec: the value to be written to the hash filter
1324 * @sleep_ok: call is allowed to sleep
1326 * Sets the 64-bit inexact-match hash filter for a virtual interface.
1328 int t4vf_set_addr_hash(struct adapter *adapter, unsigned int viid,
1329 bool ucast, u64 vec, bool sleep_ok)
1331 struct fw_vi_mac_cmd cmd;
1332 size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
1335 memset(&cmd, 0, sizeof(cmd));
1336 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD) |
1339 FW_VI_ENABLE_CMD_VIID_V(viid));
1340 cmd.freemacs_to_len16 = cpu_to_be32(FW_VI_MAC_CMD_HASHVECEN_F |
1341 FW_VI_MAC_CMD_HASHUNIEN_V(ucast) |
1342 FW_CMD_LEN16_V(len16));
1343 cmd.u.hash.hashvec = cpu_to_be64(vec);
1344 return t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), NULL, sleep_ok);
1348 * t4vf_get_port_stats - collect "port" statistics
1349 * @adapter: the adapter
1350 * @pidx: the port index
1351 * @s: the stats structure to fill
1353 * Collect statistics for the "port"'s Virtual Interface.
1355 int t4vf_get_port_stats(struct adapter *adapter, int pidx,
1356 struct t4vf_port_stats *s)
1358 struct port_info *pi = adap2pinfo(adapter, pidx);
1359 struct fw_vi_stats_vf fwstats;
1360 unsigned int rem = VI_VF_NUM_STATS;
1361 __be64 *fwsp = (__be64 *)&fwstats;
1364 * Grab the Virtual Interface statistics a chunk at a time via mailbox
1365 * commands. We could use a Work Request and get all of them at once
1366 * but that's an asynchronous interface which is awkward to use.
1369 unsigned int ix = VI_VF_NUM_STATS - rem;
1370 unsigned int nstats = min(6U, rem);
1371 struct fw_vi_stats_cmd cmd, rpl;
1372 size_t len = (offsetof(struct fw_vi_stats_cmd, u) +
1373 sizeof(struct fw_vi_stats_ctl));
1374 size_t len16 = DIV_ROUND_UP(len, 16);
1377 memset(&cmd, 0, sizeof(cmd));
1378 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_STATS_CMD) |
1379 FW_VI_STATS_CMD_VIID_V(pi->viid) |
1382 cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16_V(len16));
1383 cmd.u.ctl.nstats_ix =
1384 cpu_to_be16(FW_VI_STATS_CMD_IX_V(ix) |
1385 FW_VI_STATS_CMD_NSTATS_V(nstats));
1386 ret = t4vf_wr_mbox_ns(adapter, &cmd, len, &rpl);
1390 memcpy(fwsp, &rpl.u.ctl.stat0, sizeof(__be64) * nstats);
1397 * Translate firmware statistics into host native statistics.
1399 s->tx_bcast_bytes = be64_to_cpu(fwstats.tx_bcast_bytes);
1400 s->tx_bcast_frames = be64_to_cpu(fwstats.tx_bcast_frames);
1401 s->tx_mcast_bytes = be64_to_cpu(fwstats.tx_mcast_bytes);
1402 s->tx_mcast_frames = be64_to_cpu(fwstats.tx_mcast_frames);
1403 s->tx_ucast_bytes = be64_to_cpu(fwstats.tx_ucast_bytes);
1404 s->tx_ucast_frames = be64_to_cpu(fwstats.tx_ucast_frames);
1405 s->tx_drop_frames = be64_to_cpu(fwstats.tx_drop_frames);
1406 s->tx_offload_bytes = be64_to_cpu(fwstats.tx_offload_bytes);
1407 s->tx_offload_frames = be64_to_cpu(fwstats.tx_offload_frames);
1409 s->rx_bcast_bytes = be64_to_cpu(fwstats.rx_bcast_bytes);
1410 s->rx_bcast_frames = be64_to_cpu(fwstats.rx_bcast_frames);
1411 s->rx_mcast_bytes = be64_to_cpu(fwstats.rx_mcast_bytes);
1412 s->rx_mcast_frames = be64_to_cpu(fwstats.rx_mcast_frames);
1413 s->rx_ucast_bytes = be64_to_cpu(fwstats.rx_ucast_bytes);
1414 s->rx_ucast_frames = be64_to_cpu(fwstats.rx_ucast_frames);
1416 s->rx_err_frames = be64_to_cpu(fwstats.rx_err_frames);
1422 * t4vf_iq_free - free an ingress queue and its free lists
1423 * @adapter: the adapter
1424 * @iqtype: the ingress queue type (FW_IQ_TYPE_FL_INT_CAP, etc.)
1425 * @iqid: ingress queue ID
1426 * @fl0id: FL0 queue ID or 0xffff if no attached FL0
1427 * @fl1id: FL1 queue ID or 0xffff if no attached FL1
1429 * Frees an ingress queue and its associated free lists, if any.
1431 int t4vf_iq_free(struct adapter *adapter, unsigned int iqtype,
1432 unsigned int iqid, unsigned int fl0id, unsigned int fl1id)
1434 struct fw_iq_cmd cmd;
1436 memset(&cmd, 0, sizeof(cmd));
1437 cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_IQ_CMD) |
1440 cmd.alloc_to_len16 = cpu_to_be32(FW_IQ_CMD_FREE_F |
1442 cmd.type_to_iqandstindex =
1443 cpu_to_be32(FW_IQ_CMD_TYPE_V(iqtype));
1445 cmd.iqid = cpu_to_be16(iqid);
1446 cmd.fl0id = cpu_to_be16(fl0id);
1447 cmd.fl1id = cpu_to_be16(fl1id);
1448 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1452 * t4vf_eth_eq_free - free an Ethernet egress queue
1453 * @adapter: the adapter
1454 * @eqid: egress queue ID
1456 * Frees an Ethernet egress queue.
1458 int t4vf_eth_eq_free(struct adapter *adapter, unsigned int eqid)
1460 struct fw_eq_eth_cmd cmd;
1462 memset(&cmd, 0, sizeof(cmd));
1463 cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_EQ_ETH_CMD) |
1466 cmd.alloc_to_len16 = cpu_to_be32(FW_EQ_ETH_CMD_FREE_F |
1468 cmd.eqid_pkd = cpu_to_be32(FW_EQ_ETH_CMD_EQID_V(eqid));
1469 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1473 * t4vf_handle_fw_rpl - process a firmware reply message
1474 * @adapter: the adapter
1475 * @rpl: start of the firmware message
1477 * Processes a firmware message, such as link state change messages.
1479 int t4vf_handle_fw_rpl(struct adapter *adapter, const __be64 *rpl)
1481 const struct fw_cmd_hdr *cmd_hdr = (const struct fw_cmd_hdr *)rpl;
1482 u8 opcode = FW_CMD_OP_G(be32_to_cpu(cmd_hdr->hi));
1487 * Link/module state change message.
1489 const struct fw_port_cmd *port_cmd =
1490 (const struct fw_port_cmd *)rpl;
1492 int action, port_id, link_ok, speed, fc, pidx;
1495 * Extract various fields from port status change message.
1497 action = FW_PORT_CMD_ACTION_G(
1498 be32_to_cpu(port_cmd->action_to_len16));
1499 if (action != FW_PORT_ACTION_GET_PORT_INFO) {
1500 dev_err(adapter->pdev_dev,
1501 "Unknown firmware PORT reply action %x\n",
1506 port_id = FW_PORT_CMD_PORTID_G(
1507 be32_to_cpu(port_cmd->op_to_portid));
1509 stat = be32_to_cpu(port_cmd->u.info.lstatus_to_modtype);
1510 link_ok = (stat & FW_PORT_CMD_LSTATUS_F) != 0;
1513 if (stat & FW_PORT_CMD_RXPAUSE_F)
1515 if (stat & FW_PORT_CMD_TXPAUSE_F)
1517 if (stat & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_100M))
1519 else if (stat & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_1G))
1521 else if (stat & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_10G))
1523 else if (stat & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_40G))
1527 * Scan all of our "ports" (Virtual Interfaces) looking for
1528 * those bound to the physical port which has changed. If
1529 * our recorded state doesn't match the current state,
1530 * signal that change to the OS code.
1532 for_each_port(adapter, pidx) {
1533 struct port_info *pi = adap2pinfo(adapter, pidx);
1534 struct link_config *lc;
1536 if (pi->port_id != port_id)
1541 mod = FW_PORT_CMD_MODTYPE_G(stat);
1542 if (mod != pi->mod_type) {
1544 t4vf_os_portmod_changed(adapter, pidx);
1547 if (link_ok != lc->link_ok || speed != lc->speed ||
1549 /* something changed */
1550 lc->link_ok = link_ok;
1554 be16_to_cpu(port_cmd->u.info.pcap);
1555 t4vf_os_link_changed(adapter, pidx, link_ok);
1562 dev_err(adapter->pdev_dev, "Unknown firmware reply %X\n",
1570 int t4vf_prep_adapter(struct adapter *adapter)
1573 unsigned int chipid;
1575 /* Wait for the device to become ready before proceeding ...
1577 err = t4vf_wait_dev_ready(adapter);
1581 /* Default port and clock for debugging in case we can't reach
1584 adapter->params.nports = 1;
1585 adapter->params.vfres.pmask = 1;
1586 adapter->params.vpd.cclk = 50000;
1588 adapter->params.chip = 0;
1589 switch (CHELSIO_PCI_ID_VER(adapter->pdev->device)) {
1591 adapter->params.chip |= CHELSIO_CHIP_CODE(CHELSIO_T4, 0);
1595 chipid = G_REV(t4_read_reg(adapter, A_PL_VF_REV));
1596 adapter->params.chip |= CHELSIO_CHIP_CODE(CHELSIO_T5, chipid);