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/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];
249 * init_link_config - initialize a link's SW state
250 * @lc: structure holding the link state
251 * @caps: link capabilities
253 * Initializes the SW state maintained for each link, including the link's
254 * capabilities and default speed/flow-control/autonegotiation settings.
256 static void init_link_config(struct link_config
*lc
, unsigned int caps
)
258 lc
->supported
= caps
;
259 lc
->requested_speed
= 0;
261 lc
->requested_fc
= lc
->fc
= PAUSE_RX
| PAUSE_TX
;
262 if (lc
->supported
& SUPPORTED_Autoneg
) {
263 lc
->advertising
= lc
->supported
;
264 lc
->autoneg
= AUTONEG_ENABLE
;
265 lc
->requested_fc
|= PAUSE_AUTONEG
;
268 lc
->autoneg
= AUTONEG_DISABLE
;
273 * t4vf_port_init - initialize port hardware/software state
274 * @adapter: the adapter
275 * @pidx: the adapter port index
277 int t4vf_port_init(struct adapter
*adapter
, int pidx
)
279 struct port_info
*pi
= adap2pinfo(adapter
, pidx
);
280 struct fw_vi_cmd vi_cmd
, vi_rpl
;
281 struct fw_port_cmd port_cmd
, port_rpl
;
286 * Execute a VI Read command to get our Virtual Interface information
287 * like MAC address, etc.
289 memset(&vi_cmd
, 0, sizeof(vi_cmd
));
290 vi_cmd
.op_to_vfn
= cpu_to_be32(FW_CMD_OP_V(FW_VI_CMD
) |
293 vi_cmd
.alloc_to_len16
= cpu_to_be32(FW_LEN16(vi_cmd
));
294 vi_cmd
.type_viid
= cpu_to_be16(FW_VI_CMD_VIID_V(pi
->viid
));
295 v
= t4vf_wr_mbox(adapter
, &vi_cmd
, sizeof(vi_cmd
), &vi_rpl
);
299 BUG_ON(pi
->port_id
!= FW_VI_CMD_PORTID_G(vi_rpl
.portid_pkd
));
300 pi
->rss_size
= FW_VI_CMD_RSSSIZE_G(be16_to_cpu(vi_rpl
.rsssize_pkd
));
301 t4_os_set_hw_addr(adapter
, pidx
, vi_rpl
.mac
);
304 * If we don't have read access to our port information, we're done
305 * now. Otherwise, execute a PORT Read command to get it ...
307 if (!(adapter
->params
.vfres
.r_caps
& FW_CMD_CAP_PORT
))
310 memset(&port_cmd
, 0, sizeof(port_cmd
));
311 port_cmd
.op_to_portid
= cpu_to_be32(FW_CMD_OP_V(FW_PORT_CMD
) |
314 FW_PORT_CMD_PORTID_V(pi
->port_id
));
315 port_cmd
.action_to_len16
=
316 cpu_to_be32(FW_PORT_CMD_ACTION_V(FW_PORT_ACTION_GET_PORT_INFO
) |
318 v
= t4vf_wr_mbox(adapter
, &port_cmd
, sizeof(port_cmd
), &port_rpl
);
323 word
= be16_to_cpu(port_rpl
.u
.info
.pcap
);
324 if (word
& FW_PORT_CAP_SPEED_100M
)
325 v
|= SUPPORTED_100baseT_Full
;
326 if (word
& FW_PORT_CAP_SPEED_1G
)
327 v
|= SUPPORTED_1000baseT_Full
;
328 if (word
& FW_PORT_CAP_SPEED_10G
)
329 v
|= SUPPORTED_10000baseT_Full
;
330 if (word
& FW_PORT_CAP_SPEED_40G
)
331 v
|= SUPPORTED_40000baseSR4_Full
;
332 if (word
& FW_PORT_CAP_ANEG
)
333 v
|= SUPPORTED_Autoneg
;
334 init_link_config(&pi
->link_cfg
, v
);
340 * t4vf_fw_reset - issue a reset to FW
341 * @adapter: the adapter
343 * Issues a reset command to FW. For a Physical Function this would
344 * result in the Firmware reseting all of its state. For a Virtual
345 * Function this just resets the state associated with the VF.
347 int t4vf_fw_reset(struct adapter
*adapter
)
349 struct fw_reset_cmd cmd
;
351 memset(&cmd
, 0, sizeof(cmd
));
352 cmd
.op_to_write
= cpu_to_be32(FW_CMD_OP_V(FW_RESET_CMD
) |
354 cmd
.retval_len16
= cpu_to_be32(FW_LEN16(cmd
));
355 return t4vf_wr_mbox(adapter
, &cmd
, sizeof(cmd
), NULL
);
359 * t4vf_query_params - query FW or device parameters
360 * @adapter: the adapter
361 * @nparams: the number of parameters
362 * @params: the parameter names
363 * @vals: the parameter values
365 * Reads the values of firmware or device parameters. Up to 7 parameters
366 * can be queried at once.
368 static int t4vf_query_params(struct adapter
*adapter
, unsigned int nparams
,
369 const u32
*params
, u32
*vals
)
372 struct fw_params_cmd cmd
, rpl
;
373 struct fw_params_param
*p
;
379 memset(&cmd
, 0, sizeof(cmd
));
380 cmd
.op_to_vfn
= cpu_to_be32(FW_CMD_OP_V(FW_PARAMS_CMD
) |
383 len16
= DIV_ROUND_UP(offsetof(struct fw_params_cmd
,
384 param
[nparams
].mnem
), 16);
385 cmd
.retval_len16
= cpu_to_be32(FW_CMD_LEN16_V(len16
));
386 for (i
= 0, p
= &cmd
.param
[0]; i
< nparams
; i
++, p
++)
387 p
->mnem
= htonl(*params
++);
389 ret
= t4vf_wr_mbox(adapter
, &cmd
, sizeof(cmd
), &rpl
);
391 for (i
= 0, p
= &rpl
.param
[0]; i
< nparams
; i
++, p
++)
392 *vals
++ = be32_to_cpu(p
->val
);
397 * t4vf_set_params - sets FW or device parameters
398 * @adapter: the adapter
399 * @nparams: the number of parameters
400 * @params: the parameter names
401 * @vals: the parameter values
403 * Sets the values of firmware or device parameters. Up to 7 parameters
404 * can be specified at once.
406 int t4vf_set_params(struct adapter
*adapter
, unsigned int nparams
,
407 const u32
*params
, const u32
*vals
)
410 struct fw_params_cmd cmd
;
411 struct fw_params_param
*p
;
417 memset(&cmd
, 0, sizeof(cmd
));
418 cmd
.op_to_vfn
= cpu_to_be32(FW_CMD_OP_V(FW_PARAMS_CMD
) |
421 len16
= DIV_ROUND_UP(offsetof(struct fw_params_cmd
,
422 param
[nparams
]), 16);
423 cmd
.retval_len16
= cpu_to_be32(FW_CMD_LEN16_V(len16
));
424 for (i
= 0, p
= &cmd
.param
[0]; i
< nparams
; i
++, p
++) {
425 p
->mnem
= cpu_to_be32(*params
++);
426 p
->val
= cpu_to_be32(*vals
++);
429 return t4vf_wr_mbox(adapter
, &cmd
, sizeof(cmd
), NULL
);
433 * t4_bar2_sge_qregs - return BAR2 SGE Queue register information
434 * @adapter: the adapter
436 * @qtype: the Ingress or Egress type for @qid
437 * @pbar2_qoffset: BAR2 Queue Offset
438 * @pbar2_qid: BAR2 Queue ID or 0 for Queue ID inferred SGE Queues
440 * Returns the BAR2 SGE Queue Registers information associated with the
441 * indicated Absolute Queue ID. These are passed back in return value
442 * pointers. @qtype should be T4_BAR2_QTYPE_EGRESS for Egress Queue
443 * and T4_BAR2_QTYPE_INGRESS for Ingress Queues.
445 * This may return an error which indicates that BAR2 SGE Queue
446 * registers aren't available. If an error is not returned, then the
447 * following values are returned:
449 * *@pbar2_qoffset: the BAR2 Offset of the @qid Registers
450 * *@pbar2_qid: the BAR2 SGE Queue ID or 0 of @qid
452 * If the returned BAR2 Queue ID is 0, then BAR2 SGE registers which
453 * require the "Inferred Queue ID" ability may be used. E.g. the
454 * Write Combining Doorbell Buffer. If the BAR2 Queue ID is not 0,
455 * then these "Inferred Queue ID" register may not be used.
457 int t4_bar2_sge_qregs(struct adapter
*adapter
,
459 enum t4_bar2_qtype qtype
,
461 unsigned int *pbar2_qid
)
463 unsigned int page_shift
, page_size
, qpp_shift
, qpp_mask
;
464 u64 bar2_page_offset
, bar2_qoffset
;
465 unsigned int bar2_qid
, bar2_qid_offset
, bar2_qinferred
;
467 /* T4 doesn't support BAR2 SGE Queue registers.
469 if (is_t4(adapter
->params
.chip
))
472 /* Get our SGE Page Size parameters.
474 page_shift
= adapter
->params
.sge
.sge_vf_hps
+ 10;
475 page_size
= 1 << page_shift
;
477 /* Get the right Queues per Page parameters for our Queue.
479 qpp_shift
= (qtype
== T4_BAR2_QTYPE_EGRESS
480 ? adapter
->params
.sge
.sge_vf_eq_qpp
481 : adapter
->params
.sge
.sge_vf_iq_qpp
);
482 qpp_mask
= (1 << qpp_shift
) - 1;
484 /* Calculate the basics of the BAR2 SGE Queue register area:
485 * o The BAR2 page the Queue registers will be in.
486 * o The BAR2 Queue ID.
487 * o The BAR2 Queue ID Offset into the BAR2 page.
489 bar2_page_offset
= ((qid
>> qpp_shift
) << page_shift
);
490 bar2_qid
= qid
& qpp_mask
;
491 bar2_qid_offset
= bar2_qid
* SGE_UDB_SIZE
;
493 /* If the BAR2 Queue ID Offset is less than the Page Size, then the
494 * hardware will infer the Absolute Queue ID simply from the writes to
495 * the BAR2 Queue ID Offset within the BAR2 Page (and we need to use a
496 * BAR2 Queue ID of 0 for those writes). Otherwise, we'll simply
497 * write to the first BAR2 SGE Queue Area within the BAR2 Page with
498 * the BAR2 Queue ID and the hardware will infer the Absolute Queue ID
499 * from the BAR2 Page and BAR2 Queue ID.
501 * One important censequence of this is that some BAR2 SGE registers
502 * have a "Queue ID" field and we can write the BAR2 SGE Queue ID
503 * there. But other registers synthesize the SGE Queue ID purely
504 * from the writes to the registers -- the Write Combined Doorbell
505 * Buffer is a good example. These BAR2 SGE Registers are only
506 * available for those BAR2 SGE Register areas where the SGE Absolute
507 * Queue ID can be inferred from simple writes.
509 bar2_qoffset
= bar2_page_offset
;
510 bar2_qinferred
= (bar2_qid_offset
< page_size
);
511 if (bar2_qinferred
) {
512 bar2_qoffset
+= bar2_qid_offset
;
516 *pbar2_qoffset
= bar2_qoffset
;
517 *pbar2_qid
= bar2_qid
;
522 * t4vf_get_sge_params - retrieve adapter Scatter gather Engine parameters
523 * @adapter: the adapter
525 * Retrieves various core SGE parameters in the form of hardware SGE
526 * register values. The caller is responsible for decoding these as
527 * needed. The SGE parameters are stored in @adapter->params.sge.
529 int t4vf_get_sge_params(struct adapter
*adapter
)
531 struct sge_params
*sge_params
= &adapter
->params
.sge
;
532 u32 params
[7], vals
[7];
535 params
[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG
) |
536 FW_PARAMS_PARAM_XYZ_V(SGE_CONTROL
));
537 params
[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG
) |
538 FW_PARAMS_PARAM_XYZ_V(SGE_HOST_PAGE_SIZE
));
539 params
[2] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG
) |
540 FW_PARAMS_PARAM_XYZ_V(SGE_FL_BUFFER_SIZE0
));
541 params
[3] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG
) |
542 FW_PARAMS_PARAM_XYZ_V(SGE_FL_BUFFER_SIZE1
));
543 params
[4] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG
) |
544 FW_PARAMS_PARAM_XYZ_V(SGE_TIMER_VALUE_0_AND_1
));
545 params
[5] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG
) |
546 FW_PARAMS_PARAM_XYZ_V(SGE_TIMER_VALUE_2_AND_3
));
547 params
[6] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG
) |
548 FW_PARAMS_PARAM_XYZ_V(SGE_TIMER_VALUE_4_AND_5
));
549 v
= t4vf_query_params(adapter
, 7, params
, vals
);
552 sge_params
->sge_control
= vals
[0];
553 sge_params
->sge_host_page_size
= vals
[1];
554 sge_params
->sge_fl_buffer_size
[0] = vals
[2];
555 sge_params
->sge_fl_buffer_size
[1] = vals
[3];
556 sge_params
->sge_timer_value_0_and_1
= vals
[4];
557 sge_params
->sge_timer_value_2_and_3
= vals
[5];
558 sge_params
->sge_timer_value_4_and_5
= vals
[6];
560 /* T4 uses a single control field to specify both the PCIe Padding and
561 * Packing Boundary. T5 introduced the ability to specify these
562 * separately with the Padding Boundary in SGE_CONTROL and and Packing
563 * Boundary in SGE_CONTROL2. So for T5 and later we need to grab
564 * SGE_CONTROL in order to determine how ingress packet data will be
565 * laid out in Packed Buffer Mode. Unfortunately, older versions of
566 * the firmware won't let us retrieve SGE_CONTROL2 so if we get a
567 * failure grabbing it we throw an error since we can't figure out the
570 if (!is_t4(adapter
->params
.chip
)) {
571 params
[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG
) |
572 FW_PARAMS_PARAM_XYZ_V(SGE_CONTROL2_A
));
573 v
= t4vf_query_params(adapter
, 1, params
, vals
);
574 if (v
!= FW_SUCCESS
) {
575 dev_err(adapter
->pdev_dev
,
576 "Unable to get SGE Control2; "
577 "probably old firmware.\n");
580 sge_params
->sge_control2
= vals
[0];
583 params
[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG
) |
584 FW_PARAMS_PARAM_XYZ_V(SGE_INGRESS_RX_THRESHOLD
));
585 params
[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG
) |
586 FW_PARAMS_PARAM_XYZ_V(SGE_CONM_CTRL
));
587 v
= t4vf_query_params(adapter
, 2, params
, vals
);
590 sge_params
->sge_ingress_rx_threshold
= vals
[0];
591 sge_params
->sge_congestion_control
= vals
[1];
593 /* For T5 and later we want to use the new BAR2 Doorbells.
594 * Unfortunately, older firmware didn't allow the this register to be
597 if (!is_t4(adapter
->params
.chip
)) {
599 unsigned int pf
, s_hps
, s_qpp
;
601 params
[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG
) |
602 FW_PARAMS_PARAM_XYZ_V(
603 SGE_EGRESS_QUEUES_PER_PAGE_VF_A
));
604 params
[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG
) |
605 FW_PARAMS_PARAM_XYZ_V(
606 SGE_INGRESS_QUEUES_PER_PAGE_VF_A
));
607 v
= t4vf_query_params(adapter
, 2, params
, vals
);
608 if (v
!= FW_SUCCESS
) {
609 dev_warn(adapter
->pdev_dev
,
610 "Unable to get VF SGE Queues/Page; "
611 "probably old firmware.\n");
614 sge_params
->sge_egress_queues_per_page
= vals
[0];
615 sge_params
->sge_ingress_queues_per_page
= vals
[1];
617 /* We need the Queues/Page for our VF. This is based on the
618 * PF from which we're instantiated and is indexed in the
619 * register we just read. Do it once here so other code in
620 * the driver can just use it.
622 whoami
= t4_read_reg(adapter
,
623 T4VF_PL_BASE_ADDR
+ A_PL_VF_WHOAMI
);
624 pf
= SOURCEPF_GET(whoami
);
626 s_hps
= (HOSTPAGESIZEPF0_S
+
627 (HOSTPAGESIZEPF1_S
- HOSTPAGESIZEPF0_S
) * pf
);
628 sge_params
->sge_vf_hps
=
629 ((sge_params
->sge_host_page_size
>> s_hps
)
630 & HOSTPAGESIZEPF0_M
);
632 s_qpp
= (QUEUESPERPAGEPF0_S
+
633 (QUEUESPERPAGEPF1_S
- QUEUESPERPAGEPF0_S
) * pf
);
634 sge_params
->sge_vf_eq_qpp
=
635 ((sge_params
->sge_egress_queues_per_page
>> s_qpp
)
636 & QUEUESPERPAGEPF0_MASK
);
637 sge_params
->sge_vf_iq_qpp
=
638 ((sge_params
->sge_ingress_queues_per_page
>> s_qpp
)
639 & QUEUESPERPAGEPF0_MASK
);
646 * t4vf_get_vpd_params - retrieve device VPD paremeters
647 * @adapter: the adapter
649 * Retrives various device Vital Product Data parameters. The parameters
650 * are stored in @adapter->params.vpd.
652 int t4vf_get_vpd_params(struct adapter
*adapter
)
654 struct vpd_params
*vpd_params
= &adapter
->params
.vpd
;
655 u32 params
[7], vals
[7];
658 params
[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV
) |
659 FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_CCLK
));
660 v
= t4vf_query_params(adapter
, 1, params
, vals
);
663 vpd_params
->cclk
= vals
[0];
669 * t4vf_get_dev_params - retrieve device paremeters
670 * @adapter: the adapter
672 * Retrives various device parameters. The parameters are stored in
673 * @adapter->params.dev.
675 int t4vf_get_dev_params(struct adapter
*adapter
)
677 struct dev_params
*dev_params
= &adapter
->params
.dev
;
678 u32 params
[7], vals
[7];
681 params
[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV
) |
682 FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_FWREV
));
683 params
[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV
) |
684 FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_TPREV
));
685 v
= t4vf_query_params(adapter
, 2, params
, vals
);
688 dev_params
->fwrev
= vals
[0];
689 dev_params
->tprev
= vals
[1];
695 * t4vf_get_rss_glb_config - retrieve adapter RSS Global Configuration
696 * @adapter: the adapter
698 * Retrieves global RSS mode and parameters with which we have to live
699 * and stores them in the @adapter's RSS parameters.
701 int t4vf_get_rss_glb_config(struct adapter
*adapter
)
703 struct rss_params
*rss
= &adapter
->params
.rss
;
704 struct fw_rss_glb_config_cmd cmd
, rpl
;
708 * Execute an RSS Global Configuration read command to retrieve
709 * our RSS configuration.
711 memset(&cmd
, 0, sizeof(cmd
));
712 cmd
.op_to_write
= cpu_to_be32(FW_CMD_OP_V(FW_RSS_GLB_CONFIG_CMD
) |
715 cmd
.retval_len16
= cpu_to_be32(FW_LEN16(cmd
));
716 v
= t4vf_wr_mbox(adapter
, &cmd
, sizeof(cmd
), &rpl
);
721 * Transate the big-endian RSS Global Configuration into our
722 * cpu-endian format based on the RSS mode. We also do first level
723 * filtering at this point to weed out modes which don't support
726 rss
->mode
= FW_RSS_GLB_CONFIG_CMD_MODE_G(
727 be32_to_cpu(rpl
.u
.manual
.mode_pkd
));
729 case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL
: {
730 u32 word
= be32_to_cpu(
731 rpl
.u
.basicvirtual
.synmapen_to_hashtoeplitz
);
733 rss
->u
.basicvirtual
.synmapen
=
734 ((word
& FW_RSS_GLB_CONFIG_CMD_SYNMAPEN_F
) != 0);
735 rss
->u
.basicvirtual
.syn4tupenipv6
=
736 ((word
& FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV6_F
) != 0);
737 rss
->u
.basicvirtual
.syn2tupenipv6
=
738 ((word
& FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV6_F
) != 0);
739 rss
->u
.basicvirtual
.syn4tupenipv4
=
740 ((word
& FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV4_F
) != 0);
741 rss
->u
.basicvirtual
.syn2tupenipv4
=
742 ((word
& FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV4_F
) != 0);
744 rss
->u
.basicvirtual
.ofdmapen
=
745 ((word
& FW_RSS_GLB_CONFIG_CMD_OFDMAPEN_F
) != 0);
747 rss
->u
.basicvirtual
.tnlmapen
=
748 ((word
& FW_RSS_GLB_CONFIG_CMD_TNLMAPEN_F
) != 0);
749 rss
->u
.basicvirtual
.tnlalllookup
=
750 ((word
& FW_RSS_GLB_CONFIG_CMD_TNLALLLKP_F
) != 0);
752 rss
->u
.basicvirtual
.hashtoeplitz
=
753 ((word
& FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ_F
) != 0);
755 /* we need at least Tunnel Map Enable to be set */
756 if (!rss
->u
.basicvirtual
.tnlmapen
)
762 /* all unknown/unsupported RSS modes result in an error */
770 * t4vf_get_vfres - retrieve VF resource limits
771 * @adapter: the adapter
773 * Retrieves configured resource limits and capabilities for a virtual
774 * function. The results are stored in @adapter->vfres.
776 int t4vf_get_vfres(struct adapter
*adapter
)
778 struct vf_resources
*vfres
= &adapter
->params
.vfres
;
779 struct fw_pfvf_cmd cmd
, rpl
;
784 * Execute PFVF Read command to get VF resource limits; bail out early
785 * with error on command failure.
787 memset(&cmd
, 0, sizeof(cmd
));
788 cmd
.op_to_vfn
= cpu_to_be32(FW_CMD_OP_V(FW_PFVF_CMD
) |
791 cmd
.retval_len16
= cpu_to_be32(FW_LEN16(cmd
));
792 v
= t4vf_wr_mbox(adapter
, &cmd
, sizeof(cmd
), &rpl
);
797 * Extract VF resource limits and return success.
799 word
= be32_to_cpu(rpl
.niqflint_niq
);
800 vfres
->niqflint
= FW_PFVF_CMD_NIQFLINT_G(word
);
801 vfres
->niq
= FW_PFVF_CMD_NIQ_G(word
);
803 word
= be32_to_cpu(rpl
.type_to_neq
);
804 vfres
->neq
= FW_PFVF_CMD_NEQ_G(word
);
805 vfres
->pmask
= FW_PFVF_CMD_PMASK_G(word
);
807 word
= be32_to_cpu(rpl
.tc_to_nexactf
);
808 vfres
->tc
= FW_PFVF_CMD_TC_G(word
);
809 vfres
->nvi
= FW_PFVF_CMD_NVI_G(word
);
810 vfres
->nexactf
= FW_PFVF_CMD_NEXACTF_G(word
);
812 word
= be32_to_cpu(rpl
.r_caps_to_nethctrl
);
813 vfres
->r_caps
= FW_PFVF_CMD_R_CAPS_G(word
);
814 vfres
->wx_caps
= FW_PFVF_CMD_WX_CAPS_G(word
);
815 vfres
->nethctrl
= FW_PFVF_CMD_NETHCTRL_G(word
);
821 * t4vf_read_rss_vi_config - read a VI's RSS configuration
822 * @adapter: the adapter
823 * @viid: Virtual Interface ID
824 * @config: pointer to host-native VI RSS Configuration buffer
826 * Reads the Virtual Interface's RSS configuration information and
827 * translates it into CPU-native format.
829 int t4vf_read_rss_vi_config(struct adapter
*adapter
, unsigned int viid
,
830 union rss_vi_config
*config
)
832 struct fw_rss_vi_config_cmd cmd
, rpl
;
835 memset(&cmd
, 0, sizeof(cmd
));
836 cmd
.op_to_viid
= cpu_to_be32(FW_CMD_OP_V(FW_RSS_VI_CONFIG_CMD
) |
839 FW_RSS_VI_CONFIG_CMD_VIID(viid
));
840 cmd
.retval_len16
= cpu_to_be32(FW_LEN16(cmd
));
841 v
= t4vf_wr_mbox(adapter
, &cmd
, sizeof(cmd
), &rpl
);
845 switch (adapter
->params
.rss
.mode
) {
846 case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL
: {
847 u32 word
= be32_to_cpu(rpl
.u
.basicvirtual
.defaultq_to_udpen
);
849 config
->basicvirtual
.ip6fourtupen
=
850 ((word
& FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN_F
) != 0);
851 config
->basicvirtual
.ip6twotupen
=
852 ((word
& FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN_F
) != 0);
853 config
->basicvirtual
.ip4fourtupen
=
854 ((word
& FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN_F
) != 0);
855 config
->basicvirtual
.ip4twotupen
=
856 ((word
& FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN_F
) != 0);
857 config
->basicvirtual
.udpen
=
858 ((word
& FW_RSS_VI_CONFIG_CMD_UDPEN_F
) != 0);
859 config
->basicvirtual
.defaultq
=
860 FW_RSS_VI_CONFIG_CMD_DEFAULTQ_G(word
);
872 * t4vf_write_rss_vi_config - write a VI's RSS configuration
873 * @adapter: the adapter
874 * @viid: Virtual Interface ID
875 * @config: pointer to host-native VI RSS Configuration buffer
877 * Write the Virtual Interface's RSS configuration information
878 * (translating it into firmware-native format before writing).
880 int t4vf_write_rss_vi_config(struct adapter
*adapter
, unsigned int viid
,
881 union rss_vi_config
*config
)
883 struct fw_rss_vi_config_cmd cmd
, rpl
;
885 memset(&cmd
, 0, sizeof(cmd
));
886 cmd
.op_to_viid
= cpu_to_be32(FW_CMD_OP_V(FW_RSS_VI_CONFIG_CMD
) |
889 FW_RSS_VI_CONFIG_CMD_VIID(viid
));
890 cmd
.retval_len16
= cpu_to_be32(FW_LEN16(cmd
));
891 switch (adapter
->params
.rss
.mode
) {
892 case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL
: {
895 if (config
->basicvirtual
.ip6fourtupen
)
896 word
|= FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN_F
;
897 if (config
->basicvirtual
.ip6twotupen
)
898 word
|= FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN_F
;
899 if (config
->basicvirtual
.ip4fourtupen
)
900 word
|= FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN_F
;
901 if (config
->basicvirtual
.ip4twotupen
)
902 word
|= FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN_F
;
903 if (config
->basicvirtual
.udpen
)
904 word
|= FW_RSS_VI_CONFIG_CMD_UDPEN_F
;
905 word
|= FW_RSS_VI_CONFIG_CMD_DEFAULTQ_V(
906 config
->basicvirtual
.defaultq
);
907 cmd
.u
.basicvirtual
.defaultq_to_udpen
= cpu_to_be32(word
);
915 return t4vf_wr_mbox(adapter
, &cmd
, sizeof(cmd
), &rpl
);
919 * t4vf_config_rss_range - configure a portion of the RSS mapping table
920 * @adapter: the adapter
921 * @viid: Virtual Interface of RSS Table Slice
922 * @start: starting entry in the table to write
923 * @n: how many table entries to write
924 * @rspq: values for the "Response Queue" (Ingress Queue) lookup table
925 * @nrspq: number of values in @rspq
927 * Programs the selected part of the VI's RSS mapping table with the
928 * provided values. If @nrspq < @n the supplied values are used repeatedly
929 * until the full table range is populated.
931 * The caller must ensure the values in @rspq are in the range 0..1023.
933 int t4vf_config_rss_range(struct adapter
*adapter
, unsigned int viid
,
934 int start
, int n
, const u16
*rspq
, int nrspq
)
936 const u16
*rsp
= rspq
;
937 const u16
*rsp_end
= rspq
+nrspq
;
938 struct fw_rss_ind_tbl_cmd cmd
;
941 * Initialize firmware command template to write the RSS table.
943 memset(&cmd
, 0, sizeof(cmd
));
944 cmd
.op_to_viid
= cpu_to_be32(FW_CMD_OP_V(FW_RSS_IND_TBL_CMD
) |
947 FW_RSS_IND_TBL_CMD_VIID_V(viid
));
948 cmd
.retval_len16
= cpu_to_be32(FW_LEN16(cmd
));
951 * Each firmware RSS command can accommodate up to 32 RSS Ingress
952 * Queue Identifiers. These Ingress Queue IDs are packed three to
953 * a 32-bit word as 10-bit values with the upper remaining 2 bits
957 __be32
*qp
= &cmd
.iq0_to_iq2
;
962 * Set up the firmware RSS command header to send the next
963 * "nq" Ingress Queue IDs to the firmware.
965 cmd
.niqid
= cpu_to_be16(nq
);
966 cmd
.startidx
= cpu_to_be16(start
);
969 * "nq" more done for the start of the next loop.
975 * While there are still Ingress Queue IDs to stuff into the
976 * current firmware RSS command, retrieve them from the
977 * Ingress Queue ID array and insert them into the command.
981 * Grab up to the next 3 Ingress Queue IDs (wrapping
982 * around the Ingress Queue ID array if necessary) and
983 * insert them into the firmware RSS command at the
984 * current 3-tuple position within the commad.
988 int nqbuf
= min(3, nq
);
991 qbuf
[0] = qbuf
[1] = qbuf
[2] = 0;
998 *qp
++ = cpu_to_be32(FW_RSS_IND_TBL_CMD_IQ0_V(qbuf
[0]) |
999 FW_RSS_IND_TBL_CMD_IQ1_V(qbuf
[1]) |
1000 FW_RSS_IND_TBL_CMD_IQ2_V(qbuf
[2]));
1004 * Send this portion of the RRS table update to the firmware;
1005 * bail out on any errors.
1007 ret
= t4vf_wr_mbox(adapter
, &cmd
, sizeof(cmd
), NULL
);
1015 * t4vf_alloc_vi - allocate a virtual interface on a port
1016 * @adapter: the adapter
1017 * @port_id: physical port associated with the VI
1019 * Allocate a new Virtual Interface and bind it to the indicated
1020 * physical port. Return the new Virtual Interface Identifier on
1021 * success, or a [negative] error number on failure.
1023 int t4vf_alloc_vi(struct adapter
*adapter
, int port_id
)
1025 struct fw_vi_cmd cmd
, rpl
;
1029 * Execute a VI command to allocate Virtual Interface and return its
1032 memset(&cmd
, 0, sizeof(cmd
));
1033 cmd
.op_to_vfn
= cpu_to_be32(FW_CMD_OP_V(FW_VI_CMD
) |
1037 cmd
.alloc_to_len16
= cpu_to_be32(FW_LEN16(cmd
) |
1039 cmd
.portid_pkd
= FW_VI_CMD_PORTID_V(port_id
);
1040 v
= t4vf_wr_mbox(adapter
, &cmd
, sizeof(cmd
), &rpl
);
1044 return FW_VI_CMD_VIID_G(be16_to_cpu(rpl
.type_viid
));
1048 * t4vf_free_vi -- free a virtual interface
1049 * @adapter: the adapter
1050 * @viid: the virtual interface identifier
1052 * Free a previously allocated Virtual Interface. Return an error on
1055 int t4vf_free_vi(struct adapter
*adapter
, int viid
)
1057 struct fw_vi_cmd cmd
;
1060 * Execute a VI command to free the Virtual Interface.
1062 memset(&cmd
, 0, sizeof(cmd
));
1063 cmd
.op_to_vfn
= cpu_to_be32(FW_CMD_OP_V(FW_VI_CMD
) |
1066 cmd
.alloc_to_len16
= cpu_to_be32(FW_LEN16(cmd
) |
1068 cmd
.type_viid
= cpu_to_be16(FW_VI_CMD_VIID_V(viid
));
1069 return t4vf_wr_mbox(adapter
, &cmd
, sizeof(cmd
), NULL
);
1073 * t4vf_enable_vi - enable/disable a virtual interface
1074 * @adapter: the adapter
1075 * @viid: the Virtual Interface ID
1076 * @rx_en: 1=enable Rx, 0=disable Rx
1077 * @tx_en: 1=enable Tx, 0=disable Tx
1079 * Enables/disables a virtual interface.
1081 int t4vf_enable_vi(struct adapter
*adapter
, unsigned int viid
,
1082 bool rx_en
, bool tx_en
)
1084 struct fw_vi_enable_cmd cmd
;
1086 memset(&cmd
, 0, sizeof(cmd
));
1087 cmd
.op_to_viid
= cpu_to_be32(FW_CMD_OP_V(FW_VI_ENABLE_CMD
) |
1090 FW_VI_ENABLE_CMD_VIID_V(viid
));
1091 cmd
.ien_to_len16
= cpu_to_be32(FW_VI_ENABLE_CMD_IEN_V(rx_en
) |
1092 FW_VI_ENABLE_CMD_EEN_V(tx_en
) |
1094 return t4vf_wr_mbox(adapter
, &cmd
, sizeof(cmd
), NULL
);
1098 * t4vf_identify_port - identify a VI's port by blinking its LED
1099 * @adapter: the adapter
1100 * @viid: the Virtual Interface ID
1101 * @nblinks: how many times to blink LED at 2.5 Hz
1103 * Identifies a VI's port by blinking its LED.
1105 int t4vf_identify_port(struct adapter
*adapter
, unsigned int viid
,
1106 unsigned int nblinks
)
1108 struct fw_vi_enable_cmd cmd
;
1110 memset(&cmd
, 0, sizeof(cmd
));
1111 cmd
.op_to_viid
= cpu_to_be32(FW_CMD_OP_V(FW_VI_ENABLE_CMD
) |
1114 FW_VI_ENABLE_CMD_VIID_V(viid
));
1115 cmd
.ien_to_len16
= cpu_to_be32(FW_VI_ENABLE_CMD_LED_F
|
1117 cmd
.blinkdur
= cpu_to_be16(nblinks
);
1118 return t4vf_wr_mbox(adapter
, &cmd
, sizeof(cmd
), NULL
);
1122 * t4vf_set_rxmode - set Rx properties of a virtual interface
1123 * @adapter: the adapter
1125 * @mtu: the new MTU or -1 for no change
1126 * @promisc: 1 to enable promiscuous mode, 0 to disable it, -1 no change
1127 * @all_multi: 1 to enable all-multi mode, 0 to disable it, -1 no change
1128 * @bcast: 1 to enable broadcast Rx, 0 to disable it, -1 no change
1129 * @vlanex: 1 to enable hardware VLAN Tag extraction, 0 to disable it,
1132 * Sets Rx properties of a virtual interface.
1134 int t4vf_set_rxmode(struct adapter
*adapter
, unsigned int viid
,
1135 int mtu
, int promisc
, int all_multi
, int bcast
, int vlanex
,
1138 struct fw_vi_rxmode_cmd cmd
;
1140 /* convert to FW values */
1142 mtu
= FW_VI_RXMODE_CMD_MTU_M
;
1144 promisc
= FW_VI_RXMODE_CMD_PROMISCEN_M
;
1146 all_multi
= FW_VI_RXMODE_CMD_ALLMULTIEN_M
;
1148 bcast
= FW_VI_RXMODE_CMD_BROADCASTEN_M
;
1150 vlanex
= FW_VI_RXMODE_CMD_VLANEXEN_M
;
1152 memset(&cmd
, 0, sizeof(cmd
));
1153 cmd
.op_to_viid
= cpu_to_be32(FW_CMD_OP_V(FW_VI_RXMODE_CMD
) |
1156 FW_VI_RXMODE_CMD_VIID_V(viid
));
1157 cmd
.retval_len16
= cpu_to_be32(FW_LEN16(cmd
));
1158 cmd
.mtu_to_vlanexen
=
1159 cpu_to_be32(FW_VI_RXMODE_CMD_MTU_V(mtu
) |
1160 FW_VI_RXMODE_CMD_PROMISCEN_V(promisc
) |
1161 FW_VI_RXMODE_CMD_ALLMULTIEN_V(all_multi
) |
1162 FW_VI_RXMODE_CMD_BROADCASTEN_V(bcast
) |
1163 FW_VI_RXMODE_CMD_VLANEXEN_V(vlanex
));
1164 return t4vf_wr_mbox_core(adapter
, &cmd
, sizeof(cmd
), NULL
, sleep_ok
);
1168 * t4vf_alloc_mac_filt - allocates exact-match filters for MAC addresses
1169 * @adapter: the adapter
1170 * @viid: the Virtual Interface Identifier
1171 * @free: if true any existing filters for this VI id are first removed
1172 * @naddr: the number of MAC addresses to allocate filters for (up to 7)
1173 * @addr: the MAC address(es)
1174 * @idx: where to store the index of each allocated filter
1175 * @hash: pointer to hash address filter bitmap
1176 * @sleep_ok: call is allowed to sleep
1178 * Allocates an exact-match filter for each of the supplied addresses and
1179 * sets it to the corresponding address. If @idx is not %NULL it should
1180 * have at least @naddr entries, each of which will be set to the index of
1181 * the filter allocated for the corresponding MAC address. If a filter
1182 * could not be allocated for an address its index is set to 0xffff.
1183 * If @hash is not %NULL addresses that fail to allocate an exact filter
1184 * are hashed and update the hash filter bitmap pointed at by @hash.
1186 * Returns a negative error number or the number of filters allocated.
1188 int t4vf_alloc_mac_filt(struct adapter
*adapter
, unsigned int viid
, bool free
,
1189 unsigned int naddr
, const u8
**addr
, u16
*idx
,
1190 u64
*hash
, bool sleep_ok
)
1192 int offset
, ret
= 0;
1193 unsigned nfilters
= 0;
1194 unsigned int rem
= naddr
;
1195 struct fw_vi_mac_cmd cmd
, rpl
;
1196 unsigned int max_naddr
= is_t4(adapter
->params
.chip
) ?
1197 NUM_MPS_CLS_SRAM_L_INSTANCES
:
1198 NUM_MPS_T5_CLS_SRAM_L_INSTANCES
;
1200 if (naddr
> max_naddr
)
1203 for (offset
= 0; offset
< naddr
; /**/) {
1204 unsigned int fw_naddr
= (rem
< ARRAY_SIZE(cmd
.u
.exact
)
1206 : ARRAY_SIZE(cmd
.u
.exact
));
1207 size_t len16
= DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd
,
1208 u
.exact
[fw_naddr
]), 16);
1209 struct fw_vi_mac_exact
*p
;
1212 memset(&cmd
, 0, sizeof(cmd
));
1213 cmd
.op_to_viid
= cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD
) |
1216 (free
? FW_CMD_EXEC_F
: 0) |
1217 FW_VI_MAC_CMD_VIID_V(viid
));
1218 cmd
.freemacs_to_len16
=
1219 cpu_to_be32(FW_VI_MAC_CMD_FREEMACS_V(free
) |
1220 FW_CMD_LEN16_V(len16
));
1222 for (i
= 0, p
= cmd
.u
.exact
; i
< fw_naddr
; i
++, p
++) {
1223 p
->valid_to_idx
= cpu_to_be16(
1224 FW_VI_MAC_CMD_VALID_F
|
1225 FW_VI_MAC_CMD_IDX_V(FW_VI_MAC_ADD_MAC
));
1226 memcpy(p
->macaddr
, addr
[offset
+i
], sizeof(p
->macaddr
));
1230 ret
= t4vf_wr_mbox_core(adapter
, &cmd
, sizeof(cmd
), &rpl
,
1232 if (ret
&& ret
!= -ENOMEM
)
1235 for (i
= 0, p
= rpl
.u
.exact
; i
< fw_naddr
; i
++, p
++) {
1236 u16 index
= FW_VI_MAC_CMD_IDX_G(
1237 be16_to_cpu(p
->valid_to_idx
));
1244 if (index
< max_naddr
)
1247 *hash
|= (1ULL << hash_mac_addr(addr
[offset
+i
]));
1256 * If there were no errors or we merely ran out of room in our MAC
1257 * address arena, return the number of filters actually written.
1259 if (ret
== 0 || ret
== -ENOMEM
)
1265 * t4vf_change_mac - modifies the exact-match filter for a MAC address
1266 * @adapter: the adapter
1267 * @viid: the Virtual Interface ID
1268 * @idx: index of existing filter for old value of MAC address, or -1
1269 * @addr: the new MAC address value
1270 * @persist: if idx < 0, the new MAC allocation should be persistent
1272 * Modifies an exact-match filter and sets it to the new MAC address.
1273 * Note that in general it is not possible to modify the value of a given
1274 * filter so the generic way to modify an address filter is to free the
1275 * one being used by the old address value and allocate a new filter for
1276 * the new address value. @idx can be -1 if the address is a new
1279 * Returns a negative error number or the index of the filter with the new
1282 int t4vf_change_mac(struct adapter
*adapter
, unsigned int viid
,
1283 int idx
, const u8
*addr
, bool persist
)
1286 struct fw_vi_mac_cmd cmd
, rpl
;
1287 struct fw_vi_mac_exact
*p
= &cmd
.u
.exact
[0];
1288 size_t len16
= DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd
,
1290 unsigned int max_naddr
= is_t4(adapter
->params
.chip
) ?
1291 NUM_MPS_CLS_SRAM_L_INSTANCES
:
1292 NUM_MPS_T5_CLS_SRAM_L_INSTANCES
;
1295 * If this is a new allocation, determine whether it should be
1296 * persistent (across a "freemacs" operation) or not.
1299 idx
= persist
? FW_VI_MAC_ADD_PERSIST_MAC
: FW_VI_MAC_ADD_MAC
;
1301 memset(&cmd
, 0, sizeof(cmd
));
1302 cmd
.op_to_viid
= cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD
) |
1305 FW_VI_MAC_CMD_VIID_V(viid
));
1306 cmd
.freemacs_to_len16
= cpu_to_be32(FW_CMD_LEN16_V(len16
));
1307 p
->valid_to_idx
= cpu_to_be16(FW_VI_MAC_CMD_VALID_F
|
1308 FW_VI_MAC_CMD_IDX_V(idx
));
1309 memcpy(p
->macaddr
, addr
, sizeof(p
->macaddr
));
1311 ret
= t4vf_wr_mbox(adapter
, &cmd
, sizeof(cmd
), &rpl
);
1313 p
= &rpl
.u
.exact
[0];
1314 ret
= FW_VI_MAC_CMD_IDX_G(be16_to_cpu(p
->valid_to_idx
));
1315 if (ret
>= max_naddr
)
1322 * t4vf_set_addr_hash - program the MAC inexact-match hash filter
1323 * @adapter: the adapter
1324 * @viid: the Virtual Interface Identifier
1325 * @ucast: whether the hash filter should also match unicast addresses
1326 * @vec: the value to be written to the hash filter
1327 * @sleep_ok: call is allowed to sleep
1329 * Sets the 64-bit inexact-match hash filter for a virtual interface.
1331 int t4vf_set_addr_hash(struct adapter
*adapter
, unsigned int viid
,
1332 bool ucast
, u64 vec
, bool sleep_ok
)
1334 struct fw_vi_mac_cmd cmd
;
1335 size_t len16
= DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd
,
1338 memset(&cmd
, 0, sizeof(cmd
));
1339 cmd
.op_to_viid
= cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD
) |
1342 FW_VI_ENABLE_CMD_VIID_V(viid
));
1343 cmd
.freemacs_to_len16
= cpu_to_be32(FW_VI_MAC_CMD_HASHVECEN_F
|
1344 FW_VI_MAC_CMD_HASHUNIEN_V(ucast
) |
1345 FW_CMD_LEN16_V(len16
));
1346 cmd
.u
.hash
.hashvec
= cpu_to_be64(vec
);
1347 return t4vf_wr_mbox_core(adapter
, &cmd
, sizeof(cmd
), NULL
, sleep_ok
);
1351 * t4vf_get_port_stats - collect "port" statistics
1352 * @adapter: the adapter
1353 * @pidx: the port index
1354 * @s: the stats structure to fill
1356 * Collect statistics for the "port"'s Virtual Interface.
1358 int t4vf_get_port_stats(struct adapter
*adapter
, int pidx
,
1359 struct t4vf_port_stats
*s
)
1361 struct port_info
*pi
= adap2pinfo(adapter
, pidx
);
1362 struct fw_vi_stats_vf fwstats
;
1363 unsigned int rem
= VI_VF_NUM_STATS
;
1364 __be64
*fwsp
= (__be64
*)&fwstats
;
1367 * Grab the Virtual Interface statistics a chunk at a time via mailbox
1368 * commands. We could use a Work Request and get all of them at once
1369 * but that's an asynchronous interface which is awkward to use.
1372 unsigned int ix
= VI_VF_NUM_STATS
- rem
;
1373 unsigned int nstats
= min(6U, rem
);
1374 struct fw_vi_stats_cmd cmd
, rpl
;
1375 size_t len
= (offsetof(struct fw_vi_stats_cmd
, u
) +
1376 sizeof(struct fw_vi_stats_ctl
));
1377 size_t len16
= DIV_ROUND_UP(len
, 16);
1380 memset(&cmd
, 0, sizeof(cmd
));
1381 cmd
.op_to_viid
= cpu_to_be32(FW_CMD_OP_V(FW_VI_STATS_CMD
) |
1382 FW_VI_STATS_CMD_VIID_V(pi
->viid
) |
1385 cmd
.retval_len16
= cpu_to_be32(FW_CMD_LEN16_V(len16
));
1386 cmd
.u
.ctl
.nstats_ix
=
1387 cpu_to_be16(FW_VI_STATS_CMD_IX_V(ix
) |
1388 FW_VI_STATS_CMD_NSTATS_V(nstats
));
1389 ret
= t4vf_wr_mbox_ns(adapter
, &cmd
, len
, &rpl
);
1393 memcpy(fwsp
, &rpl
.u
.ctl
.stat0
, sizeof(__be64
) * nstats
);
1400 * Translate firmware statistics into host native statistics.
1402 s
->tx_bcast_bytes
= be64_to_cpu(fwstats
.tx_bcast_bytes
);
1403 s
->tx_bcast_frames
= be64_to_cpu(fwstats
.tx_bcast_frames
);
1404 s
->tx_mcast_bytes
= be64_to_cpu(fwstats
.tx_mcast_bytes
);
1405 s
->tx_mcast_frames
= be64_to_cpu(fwstats
.tx_mcast_frames
);
1406 s
->tx_ucast_bytes
= be64_to_cpu(fwstats
.tx_ucast_bytes
);
1407 s
->tx_ucast_frames
= be64_to_cpu(fwstats
.tx_ucast_frames
);
1408 s
->tx_drop_frames
= be64_to_cpu(fwstats
.tx_drop_frames
);
1409 s
->tx_offload_bytes
= be64_to_cpu(fwstats
.tx_offload_bytes
);
1410 s
->tx_offload_frames
= be64_to_cpu(fwstats
.tx_offload_frames
);
1412 s
->rx_bcast_bytes
= be64_to_cpu(fwstats
.rx_bcast_bytes
);
1413 s
->rx_bcast_frames
= be64_to_cpu(fwstats
.rx_bcast_frames
);
1414 s
->rx_mcast_bytes
= be64_to_cpu(fwstats
.rx_mcast_bytes
);
1415 s
->rx_mcast_frames
= be64_to_cpu(fwstats
.rx_mcast_frames
);
1416 s
->rx_ucast_bytes
= be64_to_cpu(fwstats
.rx_ucast_bytes
);
1417 s
->rx_ucast_frames
= be64_to_cpu(fwstats
.rx_ucast_frames
);
1419 s
->rx_err_frames
= be64_to_cpu(fwstats
.rx_err_frames
);
1425 * t4vf_iq_free - free an ingress queue and its free lists
1426 * @adapter: the adapter
1427 * @iqtype: the ingress queue type (FW_IQ_TYPE_FL_INT_CAP, etc.)
1428 * @iqid: ingress queue ID
1429 * @fl0id: FL0 queue ID or 0xffff if no attached FL0
1430 * @fl1id: FL1 queue ID or 0xffff if no attached FL1
1432 * Frees an ingress queue and its associated free lists, if any.
1434 int t4vf_iq_free(struct adapter
*adapter
, unsigned int iqtype
,
1435 unsigned int iqid
, unsigned int fl0id
, unsigned int fl1id
)
1437 struct fw_iq_cmd cmd
;
1439 memset(&cmd
, 0, sizeof(cmd
));
1440 cmd
.op_to_vfn
= cpu_to_be32(FW_CMD_OP_V(FW_IQ_CMD
) |
1443 cmd
.alloc_to_len16
= cpu_to_be32(FW_IQ_CMD_FREE_F
|
1445 cmd
.type_to_iqandstindex
=
1446 cpu_to_be32(FW_IQ_CMD_TYPE_V(iqtype
));
1448 cmd
.iqid
= cpu_to_be16(iqid
);
1449 cmd
.fl0id
= cpu_to_be16(fl0id
);
1450 cmd
.fl1id
= cpu_to_be16(fl1id
);
1451 return t4vf_wr_mbox(adapter
, &cmd
, sizeof(cmd
), NULL
);
1455 * t4vf_eth_eq_free - free an Ethernet egress queue
1456 * @adapter: the adapter
1457 * @eqid: egress queue ID
1459 * Frees an Ethernet egress queue.
1461 int t4vf_eth_eq_free(struct adapter
*adapter
, unsigned int eqid
)
1463 struct fw_eq_eth_cmd cmd
;
1465 memset(&cmd
, 0, sizeof(cmd
));
1466 cmd
.op_to_vfn
= cpu_to_be32(FW_CMD_OP_V(FW_EQ_ETH_CMD
) |
1469 cmd
.alloc_to_len16
= cpu_to_be32(FW_EQ_ETH_CMD_FREE_F
|
1471 cmd
.eqid_pkd
= cpu_to_be32(FW_EQ_ETH_CMD_EQID_V(eqid
));
1472 return t4vf_wr_mbox(adapter
, &cmd
, sizeof(cmd
), NULL
);
1476 * t4vf_handle_fw_rpl - process a firmware reply message
1477 * @adapter: the adapter
1478 * @rpl: start of the firmware message
1480 * Processes a firmware message, such as link state change messages.
1482 int t4vf_handle_fw_rpl(struct adapter
*adapter
, const __be64
*rpl
)
1484 const struct fw_cmd_hdr
*cmd_hdr
= (const struct fw_cmd_hdr
*)rpl
;
1485 u8 opcode
= FW_CMD_OP_G(be32_to_cpu(cmd_hdr
->hi
));
1490 * Link/module state change message.
1492 const struct fw_port_cmd
*port_cmd
=
1493 (const struct fw_port_cmd
*)rpl
;
1495 int action
, port_id
, link_ok
, speed
, fc
, pidx
;
1498 * Extract various fields from port status change message.
1500 action
= FW_PORT_CMD_ACTION_G(
1501 be32_to_cpu(port_cmd
->action_to_len16
));
1502 if (action
!= FW_PORT_ACTION_GET_PORT_INFO
) {
1503 dev_err(adapter
->pdev_dev
,
1504 "Unknown firmware PORT reply action %x\n",
1509 port_id
= FW_PORT_CMD_PORTID_G(
1510 be32_to_cpu(port_cmd
->op_to_portid
));
1512 word
= be32_to_cpu(port_cmd
->u
.info
.lstatus_to_modtype
);
1513 link_ok
= (word
& FW_PORT_CMD_LSTATUS_F
) != 0;
1516 if (word
& FW_PORT_CMD_RXPAUSE_F
)
1518 if (word
& FW_PORT_CMD_TXPAUSE_F
)
1520 if (word
& FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_100M
))
1522 else if (word
& FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_1G
))
1524 else if (word
& FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_10G
))
1526 else if (word
& FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_40G
))
1530 * Scan all of our "ports" (Virtual Interfaces) looking for
1531 * those bound to the physical port which has changed. If
1532 * our recorded state doesn't match the current state,
1533 * signal that change to the OS code.
1535 for_each_port(adapter
, pidx
) {
1536 struct port_info
*pi
= adap2pinfo(adapter
, pidx
);
1537 struct link_config
*lc
;
1539 if (pi
->port_id
!= port_id
)
1543 if (link_ok
!= lc
->link_ok
|| speed
!= lc
->speed
||
1545 /* something changed */
1546 lc
->link_ok
= link_ok
;
1549 t4vf_os_link_changed(adapter
, pidx
, link_ok
);
1556 dev_err(adapter
->pdev_dev
, "Unknown firmware reply %X\n",
1564 int t4vf_prep_adapter(struct adapter
*adapter
)
1567 unsigned int chipid
;
1569 /* Wait for the device to become ready before proceeding ...
1571 err
= t4vf_wait_dev_ready(adapter
);
1575 /* Default port and clock for debugging in case we can't reach
1578 adapter
->params
.nports
= 1;
1579 adapter
->params
.vfres
.pmask
= 1;
1580 adapter
->params
.vpd
.cclk
= 50000;
1582 adapter
->params
.chip
= 0;
1583 switch (CHELSIO_PCI_ID_VER(adapter
->pdev
->device
)) {
1585 adapter
->params
.chip
|= CHELSIO_CHIP_CODE(CHELSIO_T4
, 0);
1589 chipid
= G_REV(t4_read_reg(adapter
, A_PL_VF_REV
));
1590 adapter
->params
.chip
|= CHELSIO_CHIP_CODE(CHELSIO_T5
, chipid
);