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_data = T4VF_MBDATA_BASE_ADDR;
127 u32 mbox_ctl = T4VF_CIM_BASE_ADDR + CIM_VF_EXT_MAILBOX_CTRL;
130 * Commands must be multiples of 16 bytes in length and may not be
131 * larger than the size of the Mailbox Data register array.
133 if ((size % 16) != 0 ||
134 size > NUM_CIM_VF_MAILBOX_DATA_INSTANCES * 4)
138 * Loop trying to get ownership of the mailbox. Return an error
139 * if we can't gain ownership.
141 v = MBOWNER_G(t4_read_reg(adapter, mbox_ctl));
142 for (i = 0; v == MBOX_OWNER_NONE && i < 3; i++)
143 v = MBOWNER_G(t4_read_reg(adapter, mbox_ctl));
144 if (v != MBOX_OWNER_DRV)
145 return v == MBOX_OWNER_FW ? -EBUSY : -ETIMEDOUT;
148 * Write the command array into the Mailbox Data register array and
149 * transfer ownership of the mailbox to the firmware.
151 * For the VFs, the Mailbox Data "registers" are actually backed by
152 * T4's "MA" interface rather than PL Registers (as is the case for
153 * the PFs). Because these are in different coherency domains, the
154 * write to the VF's PL-register-backed Mailbox Control can race in
155 * front of the writes to the MA-backed VF Mailbox Data "registers".
156 * So we need to do a read-back on at least one byte of the VF Mailbox
157 * Data registers before doing the write to the VF Mailbox Control
160 for (i = 0, p = cmd; i < size; i += 8)
161 t4_write_reg64(adapter, mbox_data + i, be64_to_cpu(*p++));
162 t4_read_reg(adapter, mbox_data); /* flush write */
164 t4_write_reg(adapter, mbox_ctl,
165 MBMSGVALID_F | MBOWNER_V(MBOX_OWNER_FW));
166 t4_read_reg(adapter, mbox_ctl); /* flush write */
169 * Spin waiting for firmware to acknowledge processing our command.
174 for (i = 0; i < FW_CMD_MAX_TIMEOUT; i += ms) {
176 ms = delay[delay_idx];
177 if (delay_idx < ARRAY_SIZE(delay) - 1)
184 * If we're the owner, see if this is the reply we wanted.
186 v = t4_read_reg(adapter, mbox_ctl);
187 if (MBOWNER_G(v) == MBOX_OWNER_DRV) {
189 * If the Message Valid bit isn't on, revoke ownership
190 * of the mailbox and continue waiting for our reply.
192 if ((v & MBMSGVALID_F) == 0) {
193 t4_write_reg(adapter, mbox_ctl,
194 MBOWNER_V(MBOX_OWNER_NONE));
199 * We now have our reply. Extract the command return
200 * value, copy the reply back to our caller's buffer
201 * (if specified) and revoke ownership of the mailbox.
202 * We return the (negated) firmware command return
203 * code (this depends on FW_SUCCESS == 0).
206 /* return value in low-order little-endian word */
207 v = t4_read_reg(adapter, mbox_data);
208 if (FW_CMD_RETVAL_G(v))
209 dump_mbox(adapter, "FW Error", mbox_data);
212 /* request bit in high-order BE word */
213 WARN_ON((be32_to_cpu(*(const __be32 *)cmd)
214 & FW_CMD_REQUEST_F) == 0);
215 get_mbox_rpl(adapter, rpl, size, mbox_data);
216 WARN_ON((be32_to_cpu(*(__be32 *)rpl)
217 & FW_CMD_REQUEST_F) != 0);
219 t4_write_reg(adapter, mbox_ctl,
220 MBOWNER_V(MBOX_OWNER_NONE));
221 return -FW_CMD_RETVAL_G(v);
226 * We timed out. Return the error ...
228 dump_mbox(adapter, "FW Timeout", mbox_data);
233 * hash_mac_addr - return the hash value of a MAC address
234 * @addr: the 48-bit Ethernet MAC address
236 * Hashes a MAC address according to the hash function used by hardware
237 * inexact (hash) address matching.
239 static int hash_mac_addr(const u8 *addr)
241 u32 a = ((u32)addr[0] << 16) | ((u32)addr[1] << 8) | addr[2];
242 u32 b = ((u32)addr[3] << 16) | ((u32)addr[4] << 8) | addr[5];
249 #define ADVERT_MASK (FW_PORT_CAP_SPEED_100M | FW_PORT_CAP_SPEED_1G |\
250 FW_PORT_CAP_SPEED_10G | FW_PORT_CAP_SPEED_40G | \
251 FW_PORT_CAP_SPEED_100G | FW_PORT_CAP_ANEG)
254 * init_link_config - initialize a link's SW state
255 * @lc: structure holding the link state
256 * @caps: link capabilities
258 * Initializes the SW state maintained for each link, including the link's
259 * capabilities and default speed/flow-control/autonegotiation settings.
261 static void init_link_config(struct link_config *lc, unsigned int caps)
263 lc->supported = caps;
264 lc->requested_speed = 0;
266 lc->requested_fc = lc->fc = PAUSE_RX | PAUSE_TX;
267 if (lc->supported & FW_PORT_CAP_ANEG) {
268 lc->advertising = lc->supported & ADVERT_MASK;
269 lc->autoneg = AUTONEG_ENABLE;
270 lc->requested_fc |= PAUSE_AUTONEG;
273 lc->autoneg = AUTONEG_DISABLE;
278 * t4vf_port_init - initialize port hardware/software state
279 * @adapter: the adapter
280 * @pidx: the adapter port index
282 int t4vf_port_init(struct adapter *adapter, int pidx)
284 struct port_info *pi = adap2pinfo(adapter, pidx);
285 struct fw_vi_cmd vi_cmd, vi_rpl;
286 struct fw_port_cmd port_cmd, port_rpl;
290 * Execute a VI Read command to get our Virtual Interface information
291 * like MAC address, etc.
293 memset(&vi_cmd, 0, sizeof(vi_cmd));
294 vi_cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_VI_CMD) |
297 vi_cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(vi_cmd));
298 vi_cmd.type_viid = cpu_to_be16(FW_VI_CMD_VIID_V(pi->viid));
299 v = t4vf_wr_mbox(adapter, &vi_cmd, sizeof(vi_cmd), &vi_rpl);
303 BUG_ON(pi->port_id != FW_VI_CMD_PORTID_G(vi_rpl.portid_pkd));
304 pi->rss_size = FW_VI_CMD_RSSSIZE_G(be16_to_cpu(vi_rpl.rsssize_pkd));
305 t4_os_set_hw_addr(adapter, pidx, vi_rpl.mac);
308 * If we don't have read access to our port information, we're done
309 * now. Otherwise, execute a PORT Read command to get it ...
311 if (!(adapter->params.vfres.r_caps & FW_CMD_CAP_PORT))
314 memset(&port_cmd, 0, sizeof(port_cmd));
315 port_cmd.op_to_portid = cpu_to_be32(FW_CMD_OP_V(FW_PORT_CMD) |
318 FW_PORT_CMD_PORTID_V(pi->port_id));
319 port_cmd.action_to_len16 =
320 cpu_to_be32(FW_PORT_CMD_ACTION_V(FW_PORT_ACTION_GET_PORT_INFO) |
322 v = t4vf_wr_mbox(adapter, &port_cmd, sizeof(port_cmd), &port_rpl);
326 v = be32_to_cpu(port_rpl.u.info.lstatus_to_modtype);
327 pi->mdio_addr = (v & FW_PORT_CMD_MDIOCAP_F) ?
328 FW_PORT_CMD_MDIOADDR_G(v) : -1;
329 pi->port_type = FW_PORT_CMD_PTYPE_G(v);
330 pi->mod_type = FW_PORT_MOD_TYPE_NA;
332 init_link_config(&pi->link_cfg, be16_to_cpu(port_rpl.u.info.pcap));
338 * t4vf_fw_reset - issue a reset to FW
339 * @adapter: the adapter
341 * Issues a reset command to FW. For a Physical Function this would
342 * result in the Firmware resetting all of its state. For a Virtual
343 * Function this just resets the state associated with the VF.
345 int t4vf_fw_reset(struct adapter *adapter)
347 struct fw_reset_cmd cmd;
349 memset(&cmd, 0, sizeof(cmd));
350 cmd.op_to_write = cpu_to_be32(FW_CMD_OP_V(FW_RESET_CMD) |
352 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
353 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
357 * t4vf_query_params - query FW or device parameters
358 * @adapter: the adapter
359 * @nparams: the number of parameters
360 * @params: the parameter names
361 * @vals: the parameter values
363 * Reads the values of firmware or device parameters. Up to 7 parameters
364 * can be queried at once.
366 static int t4vf_query_params(struct adapter *adapter, unsigned int nparams,
367 const u32 *params, u32 *vals)
370 struct fw_params_cmd cmd, rpl;
371 struct fw_params_param *p;
377 memset(&cmd, 0, sizeof(cmd));
378 cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_PARAMS_CMD) |
381 len16 = DIV_ROUND_UP(offsetof(struct fw_params_cmd,
382 param[nparams].mnem), 16);
383 cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16_V(len16));
384 for (i = 0, p = &cmd.param[0]; i < nparams; i++, p++)
385 p->mnem = htonl(*params++);
387 ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
389 for (i = 0, p = &rpl.param[0]; i < nparams; i++, p++)
390 *vals++ = be32_to_cpu(p->val);
395 * t4vf_set_params - sets FW or device parameters
396 * @adapter: the adapter
397 * @nparams: the number of parameters
398 * @params: the parameter names
399 * @vals: the parameter values
401 * Sets the values of firmware or device parameters. Up to 7 parameters
402 * can be specified at once.
404 int t4vf_set_params(struct adapter *adapter, unsigned int nparams,
405 const u32 *params, const u32 *vals)
408 struct fw_params_cmd cmd;
409 struct fw_params_param *p;
415 memset(&cmd, 0, sizeof(cmd));
416 cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_PARAMS_CMD) |
419 len16 = DIV_ROUND_UP(offsetof(struct fw_params_cmd,
420 param[nparams]), 16);
421 cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16_V(len16));
422 for (i = 0, p = &cmd.param[0]; i < nparams; i++, p++) {
423 p->mnem = cpu_to_be32(*params++);
424 p->val = cpu_to_be32(*vals++);
427 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
431 * t4vf_bar2_sge_qregs - return BAR2 SGE Queue register information
432 * @adapter: the adapter
434 * @qtype: the Ingress or Egress type for @qid
435 * @pbar2_qoffset: BAR2 Queue Offset
436 * @pbar2_qid: BAR2 Queue ID or 0 for Queue ID inferred SGE Queues
438 * Returns the BAR2 SGE Queue Registers information associated with the
439 * indicated Absolute Queue ID. These are passed back in return value
440 * pointers. @qtype should be T4_BAR2_QTYPE_EGRESS for Egress Queue
441 * and T4_BAR2_QTYPE_INGRESS for Ingress Queues.
443 * This may return an error which indicates that BAR2 SGE Queue
444 * registers aren't available. If an error is not returned, then the
445 * following values are returned:
447 * *@pbar2_qoffset: the BAR2 Offset of the @qid Registers
448 * *@pbar2_qid: the BAR2 SGE Queue ID or 0 of @qid
450 * If the returned BAR2 Queue ID is 0, then BAR2 SGE registers which
451 * require the "Inferred Queue ID" ability may be used. E.g. the
452 * Write Combining Doorbell Buffer. If the BAR2 Queue ID is not 0,
453 * then these "Inferred Queue ID" register may not be used.
455 int t4vf_bar2_sge_qregs(struct adapter *adapter,
457 enum t4_bar2_qtype qtype,
459 unsigned int *pbar2_qid)
461 unsigned int page_shift, page_size, qpp_shift, qpp_mask;
462 u64 bar2_page_offset, bar2_qoffset;
463 unsigned int bar2_qid, bar2_qid_offset, bar2_qinferred;
465 /* T4 doesn't support BAR2 SGE Queue registers.
467 if (is_t4(adapter->params.chip))
470 /* Get our SGE Page Size parameters.
472 page_shift = adapter->params.sge.sge_vf_hps + 10;
473 page_size = 1 << page_shift;
475 /* Get the right Queues per Page parameters for our Queue.
477 qpp_shift = (qtype == T4_BAR2_QTYPE_EGRESS
478 ? adapter->params.sge.sge_vf_eq_qpp
479 : adapter->params.sge.sge_vf_iq_qpp);
480 qpp_mask = (1 << qpp_shift) - 1;
482 /* Calculate the basics of the BAR2 SGE Queue register area:
483 * o The BAR2 page the Queue registers will be in.
484 * o The BAR2 Queue ID.
485 * o The BAR2 Queue ID Offset into the BAR2 page.
487 bar2_page_offset = ((u64)(qid >> qpp_shift) << page_shift);
488 bar2_qid = qid & qpp_mask;
489 bar2_qid_offset = bar2_qid * SGE_UDB_SIZE;
491 /* If the BAR2 Queue ID Offset is less than the Page Size, then the
492 * hardware will infer the Absolute Queue ID simply from the writes to
493 * the BAR2 Queue ID Offset within the BAR2 Page (and we need to use a
494 * BAR2 Queue ID of 0 for those writes). Otherwise, we'll simply
495 * write to the first BAR2 SGE Queue Area within the BAR2 Page with
496 * the BAR2 Queue ID and the hardware will infer the Absolute Queue ID
497 * from the BAR2 Page and BAR2 Queue ID.
499 * One important censequence of this is that some BAR2 SGE registers
500 * have a "Queue ID" field and we can write the BAR2 SGE Queue ID
501 * there. But other registers synthesize the SGE Queue ID purely
502 * from the writes to the registers -- the Write Combined Doorbell
503 * Buffer is a good example. These BAR2 SGE Registers are only
504 * available for those BAR2 SGE Register areas where the SGE Absolute
505 * Queue ID can be inferred from simple writes.
507 bar2_qoffset = bar2_page_offset;
508 bar2_qinferred = (bar2_qid_offset < page_size);
509 if (bar2_qinferred) {
510 bar2_qoffset += bar2_qid_offset;
514 *pbar2_qoffset = bar2_qoffset;
515 *pbar2_qid = bar2_qid;
520 * t4vf_get_sge_params - retrieve adapter Scatter gather Engine parameters
521 * @adapter: the adapter
523 * Retrieves various core SGE parameters in the form of hardware SGE
524 * register values. The caller is responsible for decoding these as
525 * needed. The SGE parameters are stored in @adapter->params.sge.
527 int t4vf_get_sge_params(struct adapter *adapter)
529 struct sge_params *sge_params = &adapter->params.sge;
530 u32 params[7], vals[7];
533 params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
534 FW_PARAMS_PARAM_XYZ_V(SGE_CONTROL_A));
535 params[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
536 FW_PARAMS_PARAM_XYZ_V(SGE_HOST_PAGE_SIZE_A));
537 params[2] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
538 FW_PARAMS_PARAM_XYZ_V(SGE_FL_BUFFER_SIZE0_A));
539 params[3] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
540 FW_PARAMS_PARAM_XYZ_V(SGE_FL_BUFFER_SIZE1_A));
541 params[4] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
542 FW_PARAMS_PARAM_XYZ_V(SGE_TIMER_VALUE_0_AND_1_A));
543 params[5] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
544 FW_PARAMS_PARAM_XYZ_V(SGE_TIMER_VALUE_2_AND_3_A));
545 params[6] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
546 FW_PARAMS_PARAM_XYZ_V(SGE_TIMER_VALUE_4_AND_5_A));
547 v = t4vf_query_params(adapter, 7, params, vals);
550 sge_params->sge_control = vals[0];
551 sge_params->sge_host_page_size = vals[1];
552 sge_params->sge_fl_buffer_size[0] = vals[2];
553 sge_params->sge_fl_buffer_size[1] = vals[3];
554 sge_params->sge_timer_value_0_and_1 = vals[4];
555 sge_params->sge_timer_value_2_and_3 = vals[5];
556 sge_params->sge_timer_value_4_and_5 = vals[6];
558 /* T4 uses a single control field to specify both the PCIe Padding and
559 * Packing Boundary. T5 introduced the ability to specify these
560 * separately with the Padding Boundary in SGE_CONTROL and and Packing
561 * Boundary in SGE_CONTROL2. So for T5 and later we need to grab
562 * SGE_CONTROL in order to determine how ingress packet data will be
563 * laid out in Packed Buffer Mode. Unfortunately, older versions of
564 * the firmware won't let us retrieve SGE_CONTROL2 so if we get a
565 * failure grabbing it we throw an error since we can't figure out the
568 if (!is_t4(adapter->params.chip)) {
569 params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
570 FW_PARAMS_PARAM_XYZ_V(SGE_CONTROL2_A));
571 v = t4vf_query_params(adapter, 1, params, vals);
572 if (v != FW_SUCCESS) {
573 dev_err(adapter->pdev_dev,
574 "Unable to get SGE Control2; "
575 "probably old firmware.\n");
578 sge_params->sge_control2 = vals[0];
581 params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
582 FW_PARAMS_PARAM_XYZ_V(SGE_INGRESS_RX_THRESHOLD_A));
583 params[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
584 FW_PARAMS_PARAM_XYZ_V(SGE_CONM_CTRL_A));
585 v = t4vf_query_params(adapter, 2, params, vals);
588 sge_params->sge_ingress_rx_threshold = vals[0];
589 sge_params->sge_congestion_control = vals[1];
591 /* For T5 and later we want to use the new BAR2 Doorbells.
592 * Unfortunately, older firmware didn't allow the this register to be
595 if (!is_t4(adapter->params.chip)) {
597 unsigned int pf, s_hps, s_qpp;
599 params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
600 FW_PARAMS_PARAM_XYZ_V(
601 SGE_EGRESS_QUEUES_PER_PAGE_VF_A));
602 params[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
603 FW_PARAMS_PARAM_XYZ_V(
604 SGE_INGRESS_QUEUES_PER_PAGE_VF_A));
605 v = t4vf_query_params(adapter, 2, params, vals);
606 if (v != FW_SUCCESS) {
607 dev_warn(adapter->pdev_dev,
608 "Unable to get VF SGE Queues/Page; "
609 "probably old firmware.\n");
612 sge_params->sge_egress_queues_per_page = vals[0];
613 sge_params->sge_ingress_queues_per_page = vals[1];
615 /* We need the Queues/Page for our VF. This is based on the
616 * PF from which we're instantiated and is indexed in the
617 * register we just read. Do it once here so other code in
618 * the driver can just use it.
620 whoami = t4_read_reg(adapter,
621 T4VF_PL_BASE_ADDR + PL_VF_WHOAMI_A);
622 pf = SOURCEPF_G(whoami);
624 s_hps = (HOSTPAGESIZEPF0_S +
625 (HOSTPAGESIZEPF1_S - HOSTPAGESIZEPF0_S) * pf);
626 sge_params->sge_vf_hps =
627 ((sge_params->sge_host_page_size >> s_hps)
628 & HOSTPAGESIZEPF0_M);
630 s_qpp = (QUEUESPERPAGEPF0_S +
631 (QUEUESPERPAGEPF1_S - QUEUESPERPAGEPF0_S) * pf);
632 sge_params->sge_vf_eq_qpp =
633 ((sge_params->sge_egress_queues_per_page >> s_qpp)
634 & QUEUESPERPAGEPF0_M);
635 sge_params->sge_vf_iq_qpp =
636 ((sge_params->sge_ingress_queues_per_page >> s_qpp)
637 & QUEUESPERPAGEPF0_M);
644 * t4vf_get_vpd_params - retrieve device VPD paremeters
645 * @adapter: the adapter
647 * Retrives various device Vital Product Data parameters. The parameters
648 * are stored in @adapter->params.vpd.
650 int t4vf_get_vpd_params(struct adapter *adapter)
652 struct vpd_params *vpd_params = &adapter->params.vpd;
653 u32 params[7], vals[7];
656 params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) |
657 FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_CCLK));
658 v = t4vf_query_params(adapter, 1, params, vals);
661 vpd_params->cclk = vals[0];
667 * t4vf_get_dev_params - retrieve device paremeters
668 * @adapter: the adapter
670 * Retrives various device parameters. The parameters are stored in
671 * @adapter->params.dev.
673 int t4vf_get_dev_params(struct adapter *adapter)
675 struct dev_params *dev_params = &adapter->params.dev;
676 u32 params[7], vals[7];
679 params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) |
680 FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_FWREV));
681 params[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) |
682 FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_TPREV));
683 v = t4vf_query_params(adapter, 2, params, vals);
686 dev_params->fwrev = vals[0];
687 dev_params->tprev = vals[1];
693 * t4vf_get_rss_glb_config - retrieve adapter RSS Global Configuration
694 * @adapter: the adapter
696 * Retrieves global RSS mode and parameters with which we have to live
697 * and stores them in the @adapter's RSS parameters.
699 int t4vf_get_rss_glb_config(struct adapter *adapter)
701 struct rss_params *rss = &adapter->params.rss;
702 struct fw_rss_glb_config_cmd cmd, rpl;
706 * Execute an RSS Global Configuration read command to retrieve
707 * our RSS configuration.
709 memset(&cmd, 0, sizeof(cmd));
710 cmd.op_to_write = cpu_to_be32(FW_CMD_OP_V(FW_RSS_GLB_CONFIG_CMD) |
713 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
714 v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
719 * Transate the big-endian RSS Global Configuration into our
720 * cpu-endian format based on the RSS mode. We also do first level
721 * filtering at this point to weed out modes which don't support
724 rss->mode = FW_RSS_GLB_CONFIG_CMD_MODE_G(
725 be32_to_cpu(rpl.u.manual.mode_pkd));
727 case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: {
728 u32 word = be32_to_cpu(
729 rpl.u.basicvirtual.synmapen_to_hashtoeplitz);
731 rss->u.basicvirtual.synmapen =
732 ((word & FW_RSS_GLB_CONFIG_CMD_SYNMAPEN_F) != 0);
733 rss->u.basicvirtual.syn4tupenipv6 =
734 ((word & FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV6_F) != 0);
735 rss->u.basicvirtual.syn2tupenipv6 =
736 ((word & FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV6_F) != 0);
737 rss->u.basicvirtual.syn4tupenipv4 =
738 ((word & FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV4_F) != 0);
739 rss->u.basicvirtual.syn2tupenipv4 =
740 ((word & FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV4_F) != 0);
742 rss->u.basicvirtual.ofdmapen =
743 ((word & FW_RSS_GLB_CONFIG_CMD_OFDMAPEN_F) != 0);
745 rss->u.basicvirtual.tnlmapen =
746 ((word & FW_RSS_GLB_CONFIG_CMD_TNLMAPEN_F) != 0);
747 rss->u.basicvirtual.tnlalllookup =
748 ((word & FW_RSS_GLB_CONFIG_CMD_TNLALLLKP_F) != 0);
750 rss->u.basicvirtual.hashtoeplitz =
751 ((word & FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ_F) != 0);
753 /* we need at least Tunnel Map Enable to be set */
754 if (!rss->u.basicvirtual.tnlmapen)
760 /* all unknown/unsupported RSS modes result in an error */
768 * t4vf_get_vfres - retrieve VF resource limits
769 * @adapter: the adapter
771 * Retrieves configured resource limits and capabilities for a virtual
772 * function. The results are stored in @adapter->vfres.
774 int t4vf_get_vfres(struct adapter *adapter)
776 struct vf_resources *vfres = &adapter->params.vfres;
777 struct fw_pfvf_cmd cmd, rpl;
782 * Execute PFVF Read command to get VF resource limits; bail out early
783 * with error on command failure.
785 memset(&cmd, 0, sizeof(cmd));
786 cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_PFVF_CMD) |
789 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
790 v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
795 * Extract VF resource limits and return success.
797 word = be32_to_cpu(rpl.niqflint_niq);
798 vfres->niqflint = FW_PFVF_CMD_NIQFLINT_G(word);
799 vfres->niq = FW_PFVF_CMD_NIQ_G(word);
801 word = be32_to_cpu(rpl.type_to_neq);
802 vfres->neq = FW_PFVF_CMD_NEQ_G(word);
803 vfres->pmask = FW_PFVF_CMD_PMASK_G(word);
805 word = be32_to_cpu(rpl.tc_to_nexactf);
806 vfres->tc = FW_PFVF_CMD_TC_G(word);
807 vfres->nvi = FW_PFVF_CMD_NVI_G(word);
808 vfres->nexactf = FW_PFVF_CMD_NEXACTF_G(word);
810 word = be32_to_cpu(rpl.r_caps_to_nethctrl);
811 vfres->r_caps = FW_PFVF_CMD_R_CAPS_G(word);
812 vfres->wx_caps = FW_PFVF_CMD_WX_CAPS_G(word);
813 vfres->nethctrl = FW_PFVF_CMD_NETHCTRL_G(word);
819 * t4vf_read_rss_vi_config - read a VI's RSS configuration
820 * @adapter: the adapter
821 * @viid: Virtual Interface ID
822 * @config: pointer to host-native VI RSS Configuration buffer
824 * Reads the Virtual Interface's RSS configuration information and
825 * translates it into CPU-native format.
827 int t4vf_read_rss_vi_config(struct adapter *adapter, unsigned int viid,
828 union rss_vi_config *config)
830 struct fw_rss_vi_config_cmd cmd, rpl;
833 memset(&cmd, 0, sizeof(cmd));
834 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_RSS_VI_CONFIG_CMD) |
837 FW_RSS_VI_CONFIG_CMD_VIID(viid));
838 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
839 v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
843 switch (adapter->params.rss.mode) {
844 case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: {
845 u32 word = be32_to_cpu(rpl.u.basicvirtual.defaultq_to_udpen);
847 config->basicvirtual.ip6fourtupen =
848 ((word & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN_F) != 0);
849 config->basicvirtual.ip6twotupen =
850 ((word & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN_F) != 0);
851 config->basicvirtual.ip4fourtupen =
852 ((word & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN_F) != 0);
853 config->basicvirtual.ip4twotupen =
854 ((word & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN_F) != 0);
855 config->basicvirtual.udpen =
856 ((word & FW_RSS_VI_CONFIG_CMD_UDPEN_F) != 0);
857 config->basicvirtual.defaultq =
858 FW_RSS_VI_CONFIG_CMD_DEFAULTQ_G(word);
870 * t4vf_write_rss_vi_config - write a VI's RSS configuration
871 * @adapter: the adapter
872 * @viid: Virtual Interface ID
873 * @config: pointer to host-native VI RSS Configuration buffer
875 * Write the Virtual Interface's RSS configuration information
876 * (translating it into firmware-native format before writing).
878 int t4vf_write_rss_vi_config(struct adapter *adapter, unsigned int viid,
879 union rss_vi_config *config)
881 struct fw_rss_vi_config_cmd cmd, rpl;
883 memset(&cmd, 0, sizeof(cmd));
884 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_RSS_VI_CONFIG_CMD) |
887 FW_RSS_VI_CONFIG_CMD_VIID(viid));
888 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
889 switch (adapter->params.rss.mode) {
890 case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: {
893 if (config->basicvirtual.ip6fourtupen)
894 word |= FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN_F;
895 if (config->basicvirtual.ip6twotupen)
896 word |= FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN_F;
897 if (config->basicvirtual.ip4fourtupen)
898 word |= FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN_F;
899 if (config->basicvirtual.ip4twotupen)
900 word |= FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN_F;
901 if (config->basicvirtual.udpen)
902 word |= FW_RSS_VI_CONFIG_CMD_UDPEN_F;
903 word |= FW_RSS_VI_CONFIG_CMD_DEFAULTQ_V(
904 config->basicvirtual.defaultq);
905 cmd.u.basicvirtual.defaultq_to_udpen = cpu_to_be32(word);
913 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
917 * t4vf_config_rss_range - configure a portion of the RSS mapping table
918 * @adapter: the adapter
919 * @viid: Virtual Interface of RSS Table Slice
920 * @start: starting entry in the table to write
921 * @n: how many table entries to write
922 * @rspq: values for the "Response Queue" (Ingress Queue) lookup table
923 * @nrspq: number of values in @rspq
925 * Programs the selected part of the VI's RSS mapping table with the
926 * provided values. If @nrspq < @n the supplied values are used repeatedly
927 * until the full table range is populated.
929 * The caller must ensure the values in @rspq are in the range 0..1023.
931 int t4vf_config_rss_range(struct adapter *adapter, unsigned int viid,
932 int start, int n, const u16 *rspq, int nrspq)
934 const u16 *rsp = rspq;
935 const u16 *rsp_end = rspq+nrspq;
936 struct fw_rss_ind_tbl_cmd cmd;
939 * Initialize firmware command template to write the RSS table.
941 memset(&cmd, 0, sizeof(cmd));
942 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_RSS_IND_TBL_CMD) |
945 FW_RSS_IND_TBL_CMD_VIID_V(viid));
946 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
949 * Each firmware RSS command can accommodate up to 32 RSS Ingress
950 * Queue Identifiers. These Ingress Queue IDs are packed three to
951 * a 32-bit word as 10-bit values with the upper remaining 2 bits
955 __be32 *qp = &cmd.iq0_to_iq2;
960 * Set up the firmware RSS command header to send the next
961 * "nq" Ingress Queue IDs to the firmware.
963 cmd.niqid = cpu_to_be16(nq);
964 cmd.startidx = cpu_to_be16(start);
967 * "nq" more done for the start of the next loop.
973 * While there are still Ingress Queue IDs to stuff into the
974 * current firmware RSS command, retrieve them from the
975 * Ingress Queue ID array and insert them into the command.
979 * Grab up to the next 3 Ingress Queue IDs (wrapping
980 * around the Ingress Queue ID array if necessary) and
981 * insert them into the firmware RSS command at the
982 * current 3-tuple position within the commad.
986 int nqbuf = min(3, nq);
989 qbuf[0] = qbuf[1] = qbuf[2] = 0;
996 *qp++ = cpu_to_be32(FW_RSS_IND_TBL_CMD_IQ0_V(qbuf[0]) |
997 FW_RSS_IND_TBL_CMD_IQ1_V(qbuf[1]) |
998 FW_RSS_IND_TBL_CMD_IQ2_V(qbuf[2]));
1002 * Send this portion of the RRS table update to the firmware;
1003 * bail out on any errors.
1005 ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1013 * t4vf_alloc_vi - allocate a virtual interface on a port
1014 * @adapter: the adapter
1015 * @port_id: physical port associated with the VI
1017 * Allocate a new Virtual Interface and bind it to the indicated
1018 * physical port. Return the new Virtual Interface Identifier on
1019 * success, or a [negative] error number on failure.
1021 int t4vf_alloc_vi(struct adapter *adapter, int port_id)
1023 struct fw_vi_cmd cmd, rpl;
1027 * Execute a VI command to allocate Virtual Interface and return its
1030 memset(&cmd, 0, sizeof(cmd));
1031 cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_VI_CMD) |
1035 cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(cmd) |
1037 cmd.portid_pkd = FW_VI_CMD_PORTID_V(port_id);
1038 v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
1042 return FW_VI_CMD_VIID_G(be16_to_cpu(rpl.type_viid));
1046 * t4vf_free_vi -- free a virtual interface
1047 * @adapter: the adapter
1048 * @viid: the virtual interface identifier
1050 * Free a previously allocated Virtual Interface. Return an error on
1053 int t4vf_free_vi(struct adapter *adapter, int viid)
1055 struct fw_vi_cmd cmd;
1058 * Execute a VI command to free the Virtual Interface.
1060 memset(&cmd, 0, sizeof(cmd));
1061 cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_VI_CMD) |
1064 cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(cmd) |
1066 cmd.type_viid = cpu_to_be16(FW_VI_CMD_VIID_V(viid));
1067 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1071 * t4vf_enable_vi - enable/disable a virtual interface
1072 * @adapter: the adapter
1073 * @viid: the Virtual Interface ID
1074 * @rx_en: 1=enable Rx, 0=disable Rx
1075 * @tx_en: 1=enable Tx, 0=disable Tx
1077 * Enables/disables a virtual interface.
1079 int t4vf_enable_vi(struct adapter *adapter, unsigned int viid,
1080 bool rx_en, bool tx_en)
1082 struct fw_vi_enable_cmd cmd;
1084 memset(&cmd, 0, sizeof(cmd));
1085 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_ENABLE_CMD) |
1088 FW_VI_ENABLE_CMD_VIID_V(viid));
1089 cmd.ien_to_len16 = cpu_to_be32(FW_VI_ENABLE_CMD_IEN_V(rx_en) |
1090 FW_VI_ENABLE_CMD_EEN_V(tx_en) |
1092 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1096 * t4vf_identify_port - identify a VI's port by blinking its LED
1097 * @adapter: the adapter
1098 * @viid: the Virtual Interface ID
1099 * @nblinks: how many times to blink LED at 2.5 Hz
1101 * Identifies a VI's port by blinking its LED.
1103 int t4vf_identify_port(struct adapter *adapter, unsigned int viid,
1104 unsigned int nblinks)
1106 struct fw_vi_enable_cmd cmd;
1108 memset(&cmd, 0, sizeof(cmd));
1109 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_ENABLE_CMD) |
1112 FW_VI_ENABLE_CMD_VIID_V(viid));
1113 cmd.ien_to_len16 = cpu_to_be32(FW_VI_ENABLE_CMD_LED_F |
1115 cmd.blinkdur = cpu_to_be16(nblinks);
1116 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1120 * t4vf_set_rxmode - set Rx properties of a virtual interface
1121 * @adapter: the adapter
1123 * @mtu: the new MTU or -1 for no change
1124 * @promisc: 1 to enable promiscuous mode, 0 to disable it, -1 no change
1125 * @all_multi: 1 to enable all-multi mode, 0 to disable it, -1 no change
1126 * @bcast: 1 to enable broadcast Rx, 0 to disable it, -1 no change
1127 * @vlanex: 1 to enable hardware VLAN Tag extraction, 0 to disable it,
1130 * Sets Rx properties of a virtual interface.
1132 int t4vf_set_rxmode(struct adapter *adapter, unsigned int viid,
1133 int mtu, int promisc, int all_multi, int bcast, int vlanex,
1136 struct fw_vi_rxmode_cmd cmd;
1138 /* convert to FW values */
1140 mtu = FW_VI_RXMODE_CMD_MTU_M;
1142 promisc = FW_VI_RXMODE_CMD_PROMISCEN_M;
1144 all_multi = FW_VI_RXMODE_CMD_ALLMULTIEN_M;
1146 bcast = FW_VI_RXMODE_CMD_BROADCASTEN_M;
1148 vlanex = FW_VI_RXMODE_CMD_VLANEXEN_M;
1150 memset(&cmd, 0, sizeof(cmd));
1151 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_RXMODE_CMD) |
1154 FW_VI_RXMODE_CMD_VIID_V(viid));
1155 cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
1156 cmd.mtu_to_vlanexen =
1157 cpu_to_be32(FW_VI_RXMODE_CMD_MTU_V(mtu) |
1158 FW_VI_RXMODE_CMD_PROMISCEN_V(promisc) |
1159 FW_VI_RXMODE_CMD_ALLMULTIEN_V(all_multi) |
1160 FW_VI_RXMODE_CMD_BROADCASTEN_V(bcast) |
1161 FW_VI_RXMODE_CMD_VLANEXEN_V(vlanex));
1162 return t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), NULL, sleep_ok);
1166 * t4vf_alloc_mac_filt - allocates exact-match filters for MAC addresses
1167 * @adapter: the adapter
1168 * @viid: the Virtual Interface Identifier
1169 * @free: if true any existing filters for this VI id are first removed
1170 * @naddr: the number of MAC addresses to allocate filters for (up to 7)
1171 * @addr: the MAC address(es)
1172 * @idx: where to store the index of each allocated filter
1173 * @hash: pointer to hash address filter bitmap
1174 * @sleep_ok: call is allowed to sleep
1176 * Allocates an exact-match filter for each of the supplied addresses and
1177 * sets it to the corresponding address. If @idx is not %NULL it should
1178 * have at least @naddr entries, each of which will be set to the index of
1179 * the filter allocated for the corresponding MAC address. If a filter
1180 * could not be allocated for an address its index is set to 0xffff.
1181 * If @hash is not %NULL addresses that fail to allocate an exact filter
1182 * are hashed and update the hash filter bitmap pointed at by @hash.
1184 * Returns a negative error number or the number of filters allocated.
1186 int t4vf_alloc_mac_filt(struct adapter *adapter, unsigned int viid, bool free,
1187 unsigned int naddr, const u8 **addr, u16 *idx,
1188 u64 *hash, bool sleep_ok)
1190 int offset, ret = 0;
1191 unsigned nfilters = 0;
1192 unsigned int rem = naddr;
1193 struct fw_vi_mac_cmd cmd, rpl;
1194 unsigned int max_naddr = adapter->params.arch.mps_tcam_size;
1196 if (naddr > max_naddr)
1199 for (offset = 0; offset < naddr; /**/) {
1200 unsigned int fw_naddr = (rem < ARRAY_SIZE(cmd.u.exact)
1202 : ARRAY_SIZE(cmd.u.exact));
1203 size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
1204 u.exact[fw_naddr]), 16);
1205 struct fw_vi_mac_exact *p;
1208 memset(&cmd, 0, sizeof(cmd));
1209 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD) |
1212 (free ? FW_CMD_EXEC_F : 0) |
1213 FW_VI_MAC_CMD_VIID_V(viid));
1214 cmd.freemacs_to_len16 =
1215 cpu_to_be32(FW_VI_MAC_CMD_FREEMACS_V(free) |
1216 FW_CMD_LEN16_V(len16));
1218 for (i = 0, p = cmd.u.exact; i < fw_naddr; i++, p++) {
1219 p->valid_to_idx = cpu_to_be16(
1220 FW_VI_MAC_CMD_VALID_F |
1221 FW_VI_MAC_CMD_IDX_V(FW_VI_MAC_ADD_MAC));
1222 memcpy(p->macaddr, addr[offset+i], sizeof(p->macaddr));
1226 ret = t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), &rpl,
1228 if (ret && ret != -ENOMEM)
1231 for (i = 0, p = rpl.u.exact; i < fw_naddr; i++, p++) {
1232 u16 index = FW_VI_MAC_CMD_IDX_G(
1233 be16_to_cpu(p->valid_to_idx));
1240 if (index < max_naddr)
1243 *hash |= (1ULL << hash_mac_addr(addr[offset+i]));
1252 * If there were no errors or we merely ran out of room in our MAC
1253 * address arena, return the number of filters actually written.
1255 if (ret == 0 || ret == -ENOMEM)
1261 * t4vf_change_mac - modifies the exact-match filter for a MAC address
1262 * @adapter: the adapter
1263 * @viid: the Virtual Interface ID
1264 * @idx: index of existing filter for old value of MAC address, or -1
1265 * @addr: the new MAC address value
1266 * @persist: if idx < 0, the new MAC allocation should be persistent
1268 * Modifies an exact-match filter and sets it to the new MAC address.
1269 * Note that in general it is not possible to modify the value of a given
1270 * filter so the generic way to modify an address filter is to free the
1271 * one being used by the old address value and allocate a new filter for
1272 * the new address value. @idx can be -1 if the address is a new
1275 * Returns a negative error number or the index of the filter with the new
1278 int t4vf_change_mac(struct adapter *adapter, unsigned int viid,
1279 int idx, const u8 *addr, bool persist)
1282 struct fw_vi_mac_cmd cmd, rpl;
1283 struct fw_vi_mac_exact *p = &cmd.u.exact[0];
1284 size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
1286 unsigned int max_mac_addr = adapter->params.arch.mps_tcam_size;
1289 * If this is a new allocation, determine whether it should be
1290 * persistent (across a "freemacs" operation) or not.
1293 idx = persist ? FW_VI_MAC_ADD_PERSIST_MAC : FW_VI_MAC_ADD_MAC;
1295 memset(&cmd, 0, sizeof(cmd));
1296 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD) |
1299 FW_VI_MAC_CMD_VIID_V(viid));
1300 cmd.freemacs_to_len16 = cpu_to_be32(FW_CMD_LEN16_V(len16));
1301 p->valid_to_idx = cpu_to_be16(FW_VI_MAC_CMD_VALID_F |
1302 FW_VI_MAC_CMD_IDX_V(idx));
1303 memcpy(p->macaddr, addr, sizeof(p->macaddr));
1305 ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
1307 p = &rpl.u.exact[0];
1308 ret = FW_VI_MAC_CMD_IDX_G(be16_to_cpu(p->valid_to_idx));
1309 if (ret >= max_mac_addr)
1316 * t4vf_set_addr_hash - program the MAC inexact-match hash filter
1317 * @adapter: the adapter
1318 * @viid: the Virtual Interface Identifier
1319 * @ucast: whether the hash filter should also match unicast addresses
1320 * @vec: the value to be written to the hash filter
1321 * @sleep_ok: call is allowed to sleep
1323 * Sets the 64-bit inexact-match hash filter for a virtual interface.
1325 int t4vf_set_addr_hash(struct adapter *adapter, unsigned int viid,
1326 bool ucast, u64 vec, bool sleep_ok)
1328 struct fw_vi_mac_cmd cmd;
1329 size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
1332 memset(&cmd, 0, sizeof(cmd));
1333 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD) |
1336 FW_VI_ENABLE_CMD_VIID_V(viid));
1337 cmd.freemacs_to_len16 = cpu_to_be32(FW_VI_MAC_CMD_HASHVECEN_F |
1338 FW_VI_MAC_CMD_HASHUNIEN_V(ucast) |
1339 FW_CMD_LEN16_V(len16));
1340 cmd.u.hash.hashvec = cpu_to_be64(vec);
1341 return t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), NULL, sleep_ok);
1345 * t4vf_get_port_stats - collect "port" statistics
1346 * @adapter: the adapter
1347 * @pidx: the port index
1348 * @s: the stats structure to fill
1350 * Collect statistics for the "port"'s Virtual Interface.
1352 int t4vf_get_port_stats(struct adapter *adapter, int pidx,
1353 struct t4vf_port_stats *s)
1355 struct port_info *pi = adap2pinfo(adapter, pidx);
1356 struct fw_vi_stats_vf fwstats;
1357 unsigned int rem = VI_VF_NUM_STATS;
1358 __be64 *fwsp = (__be64 *)&fwstats;
1361 * Grab the Virtual Interface statistics a chunk at a time via mailbox
1362 * commands. We could use a Work Request and get all of them at once
1363 * but that's an asynchronous interface which is awkward to use.
1366 unsigned int ix = VI_VF_NUM_STATS - rem;
1367 unsigned int nstats = min(6U, rem);
1368 struct fw_vi_stats_cmd cmd, rpl;
1369 size_t len = (offsetof(struct fw_vi_stats_cmd, u) +
1370 sizeof(struct fw_vi_stats_ctl));
1371 size_t len16 = DIV_ROUND_UP(len, 16);
1374 memset(&cmd, 0, sizeof(cmd));
1375 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_STATS_CMD) |
1376 FW_VI_STATS_CMD_VIID_V(pi->viid) |
1379 cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16_V(len16));
1380 cmd.u.ctl.nstats_ix =
1381 cpu_to_be16(FW_VI_STATS_CMD_IX_V(ix) |
1382 FW_VI_STATS_CMD_NSTATS_V(nstats));
1383 ret = t4vf_wr_mbox_ns(adapter, &cmd, len, &rpl);
1387 memcpy(fwsp, &rpl.u.ctl.stat0, sizeof(__be64) * nstats);
1394 * Translate firmware statistics into host native statistics.
1396 s->tx_bcast_bytes = be64_to_cpu(fwstats.tx_bcast_bytes);
1397 s->tx_bcast_frames = be64_to_cpu(fwstats.tx_bcast_frames);
1398 s->tx_mcast_bytes = be64_to_cpu(fwstats.tx_mcast_bytes);
1399 s->tx_mcast_frames = be64_to_cpu(fwstats.tx_mcast_frames);
1400 s->tx_ucast_bytes = be64_to_cpu(fwstats.tx_ucast_bytes);
1401 s->tx_ucast_frames = be64_to_cpu(fwstats.tx_ucast_frames);
1402 s->tx_drop_frames = be64_to_cpu(fwstats.tx_drop_frames);
1403 s->tx_offload_bytes = be64_to_cpu(fwstats.tx_offload_bytes);
1404 s->tx_offload_frames = be64_to_cpu(fwstats.tx_offload_frames);
1406 s->rx_bcast_bytes = be64_to_cpu(fwstats.rx_bcast_bytes);
1407 s->rx_bcast_frames = be64_to_cpu(fwstats.rx_bcast_frames);
1408 s->rx_mcast_bytes = be64_to_cpu(fwstats.rx_mcast_bytes);
1409 s->rx_mcast_frames = be64_to_cpu(fwstats.rx_mcast_frames);
1410 s->rx_ucast_bytes = be64_to_cpu(fwstats.rx_ucast_bytes);
1411 s->rx_ucast_frames = be64_to_cpu(fwstats.rx_ucast_frames);
1413 s->rx_err_frames = be64_to_cpu(fwstats.rx_err_frames);
1419 * t4vf_iq_free - free an ingress queue and its free lists
1420 * @adapter: the adapter
1421 * @iqtype: the ingress queue type (FW_IQ_TYPE_FL_INT_CAP, etc.)
1422 * @iqid: ingress queue ID
1423 * @fl0id: FL0 queue ID or 0xffff if no attached FL0
1424 * @fl1id: FL1 queue ID or 0xffff if no attached FL1
1426 * Frees an ingress queue and its associated free lists, if any.
1428 int t4vf_iq_free(struct adapter *adapter, unsigned int iqtype,
1429 unsigned int iqid, unsigned int fl0id, unsigned int fl1id)
1431 struct fw_iq_cmd cmd;
1433 memset(&cmd, 0, sizeof(cmd));
1434 cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_IQ_CMD) |
1437 cmd.alloc_to_len16 = cpu_to_be32(FW_IQ_CMD_FREE_F |
1439 cmd.type_to_iqandstindex =
1440 cpu_to_be32(FW_IQ_CMD_TYPE_V(iqtype));
1442 cmd.iqid = cpu_to_be16(iqid);
1443 cmd.fl0id = cpu_to_be16(fl0id);
1444 cmd.fl1id = cpu_to_be16(fl1id);
1445 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1449 * t4vf_eth_eq_free - free an Ethernet egress queue
1450 * @adapter: the adapter
1451 * @eqid: egress queue ID
1453 * Frees an Ethernet egress queue.
1455 int t4vf_eth_eq_free(struct adapter *adapter, unsigned int eqid)
1457 struct fw_eq_eth_cmd cmd;
1459 memset(&cmd, 0, sizeof(cmd));
1460 cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_EQ_ETH_CMD) |
1463 cmd.alloc_to_len16 = cpu_to_be32(FW_EQ_ETH_CMD_FREE_F |
1465 cmd.eqid_pkd = cpu_to_be32(FW_EQ_ETH_CMD_EQID_V(eqid));
1466 return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1470 * t4vf_handle_fw_rpl - process a firmware reply message
1471 * @adapter: the adapter
1472 * @rpl: start of the firmware message
1474 * Processes a firmware message, such as link state change messages.
1476 int t4vf_handle_fw_rpl(struct adapter *adapter, const __be64 *rpl)
1478 const struct fw_cmd_hdr *cmd_hdr = (const struct fw_cmd_hdr *)rpl;
1479 u8 opcode = FW_CMD_OP_G(be32_to_cpu(cmd_hdr->hi));
1484 * Link/module state change message.
1486 const struct fw_port_cmd *port_cmd =
1487 (const struct fw_port_cmd *)rpl;
1489 int action, port_id, link_ok, speed, fc, pidx;
1492 * Extract various fields from port status change message.
1494 action = FW_PORT_CMD_ACTION_G(
1495 be32_to_cpu(port_cmd->action_to_len16));
1496 if (action != FW_PORT_ACTION_GET_PORT_INFO) {
1497 dev_err(adapter->pdev_dev,
1498 "Unknown firmware PORT reply action %x\n",
1503 port_id = FW_PORT_CMD_PORTID_G(
1504 be32_to_cpu(port_cmd->op_to_portid));
1506 stat = be32_to_cpu(port_cmd->u.info.lstatus_to_modtype);
1507 link_ok = (stat & FW_PORT_CMD_LSTATUS_F) != 0;
1510 if (stat & FW_PORT_CMD_RXPAUSE_F)
1512 if (stat & FW_PORT_CMD_TXPAUSE_F)
1514 if (stat & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_100M))
1516 else if (stat & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_1G))
1518 else if (stat & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_10G))
1520 else if (stat & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_40G))
1524 * Scan all of our "ports" (Virtual Interfaces) looking for
1525 * those bound to the physical port which has changed. If
1526 * our recorded state doesn't match the current state,
1527 * signal that change to the OS code.
1529 for_each_port(adapter, pidx) {
1530 struct port_info *pi = adap2pinfo(adapter, pidx);
1531 struct link_config *lc;
1533 if (pi->port_id != port_id)
1538 mod = FW_PORT_CMD_MODTYPE_G(stat);
1539 if (mod != pi->mod_type) {
1541 t4vf_os_portmod_changed(adapter, pidx);
1544 if (link_ok != lc->link_ok || speed != lc->speed ||
1546 /* something changed */
1547 lc->link_ok = link_ok;
1551 be16_to_cpu(port_cmd->u.info.pcap);
1552 t4vf_os_link_changed(adapter, pidx, link_ok);
1559 dev_err(adapter->pdev_dev, "Unknown firmware reply %X\n",
1567 int t4vf_prep_adapter(struct adapter *adapter)
1570 unsigned int chipid;
1572 /* Wait for the device to become ready before proceeding ...
1574 err = t4vf_wait_dev_ready(adapter);
1578 /* Default port and clock for debugging in case we can't reach
1581 adapter->params.nports = 1;
1582 adapter->params.vfres.pmask = 1;
1583 adapter->params.vpd.cclk = 50000;
1585 adapter->params.chip = 0;
1586 switch (CHELSIO_PCI_ID_VER(adapter->pdev->device)) {
1588 adapter->params.chip |= CHELSIO_CHIP_CODE(CHELSIO_T4, 0);
1589 adapter->params.arch.sge_fl_db = DBPRIO_F;
1590 adapter->params.arch.mps_tcam_size =
1591 NUM_MPS_CLS_SRAM_L_INSTANCES;
1595 chipid = REV_G(t4_read_reg(adapter, PL_VF_REV_A));
1596 adapter->params.chip |= CHELSIO_CHIP_CODE(CHELSIO_T5, chipid);
1597 adapter->params.arch.sge_fl_db = DBPRIO_F | DBTYPE_F;
1598 adapter->params.arch.mps_tcam_size =
1599 NUM_MPS_T5_CLS_SRAM_L_INSTANCES;
1603 chipid = REV_G(t4_read_reg(adapter, PL_VF_REV_A));
1604 adapter->params.chip |= CHELSIO_CHIP_CODE(CHELSIO_T6, chipid);
1605 adapter->params.arch.sge_fl_db = 0;
1606 adapter->params.arch.mps_tcam_size =
1607 NUM_MPS_T5_CLS_SRAM_L_INSTANCES;