1 /* QLogic qed NIC Driver
2 * Copyright (c) 2015-2017 QLogic Corporation
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and /or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
36 #include <linux/types.h>
37 #include <linux/delay.h>
38 #include <linux/slab.h>
39 #include <linux/spinlock.h>
40 #include <linux/qed/qed_fcoe_if.h>
42 #include "qed_dev_api.h"
44 struct qed_mcp_link_speed_params {
46 u32 advertised_speeds; /* bitmask of DRV_SPEED_CAPABILITY */
47 u32 forced_speed; /* In Mb/s */
50 struct qed_mcp_link_pause_params {
56 struct qed_mcp_link_params {
57 struct qed_mcp_link_speed_params speed;
58 struct qed_mcp_link_pause_params pause;
62 struct qed_mcp_link_capabilities {
63 u32 speed_capabilities;
66 struct qed_mcp_link_state {
71 /* Actual link speed in Mb/s */
74 /* PF max speed in Mb/s, deduced from line_speed
75 * according to PF max bandwidth configuration.
82 bool parallel_detection;
85 #define QED_LINK_PARTNER_SPEED_1G_HD BIT(0)
86 #define QED_LINK_PARTNER_SPEED_1G_FD BIT(1)
87 #define QED_LINK_PARTNER_SPEED_10G BIT(2)
88 #define QED_LINK_PARTNER_SPEED_20G BIT(3)
89 #define QED_LINK_PARTNER_SPEED_25G BIT(4)
90 #define QED_LINK_PARTNER_SPEED_40G BIT(5)
91 #define QED_LINK_PARTNER_SPEED_50G BIT(6)
92 #define QED_LINK_PARTNER_SPEED_100G BIT(7)
93 u32 partner_adv_speed;
95 bool partner_tx_flow_ctrl_en;
96 bool partner_rx_flow_ctrl_en;
98 #define QED_LINK_PARTNER_SYMMETRIC_PAUSE (1)
99 #define QED_LINK_PARTNER_ASYMMETRIC_PAUSE (2)
100 #define QED_LINK_PARTNER_BOTH_PAUSE (3)
101 u8 partner_adv_pause;
106 struct qed_mcp_function_info {
109 enum qed_pci_personality protocol;
119 #define QED_MCP_VLAN_UNSET (0xffff)
125 struct qed_mcp_nvm_common {
132 struct qed_mcp_drv_version {
134 u8 name[MCP_DRV_VER_STR_SIZE - 4];
137 struct qed_mcp_lan_stats {
143 struct qed_mcp_fcoe_stats {
150 struct qed_mcp_iscsi_stats {
157 struct qed_mcp_rdma_stats {
164 enum qed_mcp_protocol_type {
171 union qed_mcp_protocol_stats {
172 struct qed_mcp_lan_stats lan_stats;
173 struct qed_mcp_fcoe_stats fcoe_stats;
174 struct qed_mcp_iscsi_stats iscsi_stats;
175 struct qed_mcp_rdma_stats rdma_stats;
178 enum qed_ov_eswitch {
187 QED_OV_CLIENT_VENDOR_SPEC
190 enum qed_ov_driver_state {
191 QED_OV_DRIVER_STATE_NOT_LOADED,
192 QED_OV_DRIVER_STATE_DISABLED,
193 QED_OV_DRIVER_STATE_ACTIVE
203 * @brief - returns the link params of the hw function
207 * @returns pointer to link params
209 struct qed_mcp_link_params *qed_mcp_get_link_params(struct qed_hwfn *);
212 * @brief - return the link state of the hw function
216 * @returns pointer to link state
218 struct qed_mcp_link_state *qed_mcp_get_link_state(struct qed_hwfn *);
221 * @brief - return the link capabilities of the hw function
225 * @returns pointer to link capabilities
227 struct qed_mcp_link_capabilities
228 *qed_mcp_get_link_capabilities(struct qed_hwfn *p_hwfn);
231 * @brief Request the MFW to set the the link according to 'link_input'.
235 * @param b_up - raise link if `true'. Reset link if `false'.
239 int qed_mcp_set_link(struct qed_hwfn *p_hwfn,
240 struct qed_ptt *p_ptt,
244 * @brief Get the management firmware version value
248 * @param p_mfw_ver - mfw version value
249 * @param p_running_bundle_id - image id in nvram; Optional.
251 * @return int - 0 - operation was successful.
253 int qed_mcp_get_mfw_ver(struct qed_hwfn *p_hwfn,
254 struct qed_ptt *p_ptt,
255 u32 *p_mfw_ver, u32 *p_running_bundle_id);
258 * @brief Get media type value of the port.
260 * @param cdev - qed dev pointer
261 * @param mfw_ver - media type value
264 * 0 - Operation was successul.
265 * -EBUSY - Operation failed
267 int qed_mcp_get_media_type(struct qed_dev *cdev,
271 * @brief General function for sending commands to the MCP
272 * mailbox. It acquire mutex lock for the entire
273 * operation, from sending the request until the MCP
274 * response. Waiting for MCP response will be checked up
275 * to 5 seconds every 5ms.
277 * @param p_hwfn - hw function
278 * @param p_ptt - PTT required for register access
279 * @param cmd - command to be sent to the MCP.
280 * @param param - Optional param
281 * @param o_mcp_resp - The MCP response code (exclude sequence).
282 * @param o_mcp_param- Optional parameter provided by the MCP
284 * @return int - 0 - operation
287 int qed_mcp_cmd(struct qed_hwfn *p_hwfn,
288 struct qed_ptt *p_ptt,
295 * @brief - drains the nig, allowing completion to pass in case of pauses.
296 * (Should be called only from sleepable context)
301 int qed_mcp_drain(struct qed_hwfn *p_hwfn,
302 struct qed_ptt *p_ptt);
305 * @brief Get the flash size value
309 * @param p_flash_size - flash size in bytes to be filled.
311 * @return int - 0 - operation was successul.
313 int qed_mcp_get_flash_size(struct qed_hwfn *p_hwfn,
314 struct qed_ptt *p_ptt,
318 * @brief Send driver version to MFW
322 * @param version - Version value
323 * @param name - Protocol driver name
325 * @return int - 0 - operation was successul.
328 qed_mcp_send_drv_version(struct qed_hwfn *p_hwfn,
329 struct qed_ptt *p_ptt,
330 struct qed_mcp_drv_version *p_ver);
333 * @brief Notify MFW about the change in base device properties
337 * @param client - qed client type
339 * @return int - 0 - operation was successful.
341 int qed_mcp_ov_update_current_config(struct qed_hwfn *p_hwfn,
342 struct qed_ptt *p_ptt,
343 enum qed_ov_client client);
346 * @brief Notify MFW about the driver state
350 * @param drv_state - Driver state
352 * @return int - 0 - operation was successful.
354 int qed_mcp_ov_update_driver_state(struct qed_hwfn *p_hwfn,
355 struct qed_ptt *p_ptt,
356 enum qed_ov_driver_state drv_state);
359 * @brief Send MTU size to MFW
363 * @param mtu - MTU size
365 * @return int - 0 - operation was successful.
367 int qed_mcp_ov_update_mtu(struct qed_hwfn *p_hwfn,
368 struct qed_ptt *p_ptt, u16 mtu);
371 * @brief Send MAC address to MFW
375 * @param mac - MAC address
377 * @return int - 0 - operation was successful.
379 int qed_mcp_ov_update_mac(struct qed_hwfn *p_hwfn,
380 struct qed_ptt *p_ptt, u8 *mac);
383 * @brief Send WOL mode to MFW
387 * @param wol - WOL mode
389 * @return int - 0 - operation was successful.
391 int qed_mcp_ov_update_wol(struct qed_hwfn *p_hwfn,
392 struct qed_ptt *p_ptt,
393 enum qed_ov_wol wol);
396 * @brief Set LED status
400 * @param mode - LED mode
402 * @return int - 0 - operation was successful.
404 int qed_mcp_set_led(struct qed_hwfn *p_hwfn,
405 struct qed_ptt *p_ptt,
406 enum qed_led_mode mode);
409 * @brief Read from nvm
412 * @param addr - nvm offset
413 * @param p_buf - nvm read buffer
414 * @param len - buffer len
416 * @return int - 0 - operation was successful.
418 int qed_mcp_nvm_read(struct qed_dev *cdev, u32 addr, u8 *p_buf, u32 len);
421 * @brief Bist register test
423 * @param p_hwfn - hw function
424 * @param p_ptt - PTT required for register access
426 * @return int - 0 - operation was successful.
428 int qed_mcp_bist_register_test(struct qed_hwfn *p_hwfn,
429 struct qed_ptt *p_ptt);
432 * @brief Bist clock test
434 * @param p_hwfn - hw function
435 * @param p_ptt - PTT required for register access
437 * @return int - 0 - operation was successful.
439 int qed_mcp_bist_clock_test(struct qed_hwfn *p_hwfn,
440 struct qed_ptt *p_ptt);
443 * @brief Bist nvm test - get number of images
445 * @param p_hwfn - hw function
446 * @param p_ptt - PTT required for register access
447 * @param num_images - number of images if operation was
448 * successful. 0 if not.
450 * @return int - 0 - operation was successful.
452 int qed_mcp_bist_nvm_test_get_num_images(struct qed_hwfn *p_hwfn,
453 struct qed_ptt *p_ptt,
457 * @brief Bist nvm test - get image attributes by index
459 * @param p_hwfn - hw function
460 * @param p_ptt - PTT required for register access
461 * @param p_image_att - Attributes of image
462 * @param image_index - Index of image to get information for
464 * @return int - 0 - operation was successful.
466 int qed_mcp_bist_nvm_test_get_image_att(struct qed_hwfn *p_hwfn,
467 struct qed_ptt *p_ptt,
468 struct bist_nvm_image_att *p_image_att,
471 /* Using hwfn number (and not pf_num) is required since in CMT mode,
472 * same pf_num may be used by two different hwfn
473 * TODO - this shouldn't really be in .h file, but until all fields
474 * required during hw-init will be placed in their correct place in shmem
475 * we need it in qed_dev.c [for readin the nvram reflection in shmem].
477 #define MCP_PF_ID_BY_REL(p_hwfn, rel_pfid) (QED_IS_BB((p_hwfn)->cdev) ? \
479 ((p_hwfn)->abs_pf_id & 1) << 3) : \
481 #define MCP_PF_ID(p_hwfn) MCP_PF_ID_BY_REL(p_hwfn, (p_hwfn)->rel_pf_id)
483 #define MFW_PORT(_p_hwfn) ((_p_hwfn)->abs_pf_id % \
484 ((_p_hwfn)->cdev->num_ports_in_engines * \
485 qed_device_num_engines((_p_hwfn)->cdev)))
487 struct qed_mcp_info {
488 /* List for mailbox commands which were sent and wait for a response */
489 struct list_head cmd_list;
491 /* Spinlock used for protecting the access to the mailbox commands list
492 * and the sending of the commands.
496 /* Spinlock used for syncing SW link-changes and link-changes
497 * originating from attention context.
499 spinlock_t link_lock;
500 bool block_mb_sending;
507 struct qed_mcp_link_params link_input;
508 struct qed_mcp_link_state link_output;
509 struct qed_mcp_link_capabilities link_capabilities;
510 struct qed_mcp_function_info func_info;
517 struct qed_mcp_mb_params {
529 * @brief Initialize the interface with the MCP
531 * @param p_hwfn - HW func
532 * @param p_ptt - PTT required for register access
536 int qed_mcp_cmd_init(struct qed_hwfn *p_hwfn,
537 struct qed_ptt *p_ptt);
540 * @brief Initialize the port interface with the MCP
544 * Can only be called after `num_ports_in_engines' is set
546 void qed_mcp_cmd_port_init(struct qed_hwfn *p_hwfn,
547 struct qed_ptt *p_ptt);
549 * @brief Releases resources allocated during the init process.
551 * @param p_hwfn - HW func
552 * @param p_ptt - PTT required for register access
557 int qed_mcp_free(struct qed_hwfn *p_hwfn);
560 * @brief This function is called from the DPC context. After
561 * pointing PTT to the mfw mb, check for events sent by the MCP
562 * to the driver and ack them. In case a critical event
563 * detected, it will be handled here, otherwise the work will be
564 * queued to a sleepable work-queue.
566 * @param p_hwfn - HW function
567 * @param p_ptt - PTT required for register access
568 * @return int - 0 - operation
571 int qed_mcp_handle_events(struct qed_hwfn *p_hwfn,
572 struct qed_ptt *p_ptt);
579 struct qed_load_req_params {
581 enum qed_drv_role drv_role;
583 bool avoid_eng_reset;
584 enum qed_override_force_load override_force_load;
591 * @brief Sends a LOAD_REQ to the MFW, and in case the operation succeeds,
592 * returns whether this PF is the first on the engine/port or function.
598 * @return int - 0 - Operation was successful.
600 int qed_mcp_load_req(struct qed_hwfn *p_hwfn,
601 struct qed_ptt *p_ptt,
602 struct qed_load_req_params *p_params);
605 * @brief Sends a UNLOAD_REQ message to the MFW
610 * @return int - 0 - Operation was successful.
612 int qed_mcp_unload_req(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
615 * @brief Sends a UNLOAD_DONE message to the MFW
620 * @return int - 0 - Operation was successful.
622 int qed_mcp_unload_done(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
625 * @brief Read the MFW mailbox into Current buffer.
630 void qed_mcp_read_mb(struct qed_hwfn *p_hwfn,
631 struct qed_ptt *p_ptt);
634 * @brief Ack to mfw that driver finished FLR process for VFs
638 * @param vfs_to_ack - bit mask of all engine VFs for which the PF acks.
640 * @param return int - 0 upon success.
642 int qed_mcp_ack_vf_flr(struct qed_hwfn *p_hwfn,
643 struct qed_ptt *p_ptt, u32 *vfs_to_ack);
646 * @brief - calls during init to read shmem of all function-related info.
650 * @param return 0 upon success.
652 int qed_mcp_fill_shmem_func_info(struct qed_hwfn *p_hwfn,
653 struct qed_ptt *p_ptt);
656 * @brief - Reset the MCP using mailbox command.
661 * @param return 0 upon success.
663 int qed_mcp_reset(struct qed_hwfn *p_hwfn,
664 struct qed_ptt *p_ptt);
667 * @brief - Sends an NVM read command request to the MFW to get
672 * @param cmd - Command: DRV_MSG_CODE_NVM_GET_FILE_DATA or
673 * DRV_MSG_CODE_NVM_READ_NVRAM commands
674 * @param param - [0:23] - Offset [24:31] - Size
675 * @param o_mcp_resp - MCP response
676 * @param o_mcp_param - MCP response param
677 * @param o_txn_size - Buffer size output
678 * @param o_buf - Pointer to the buffer returned by the MFW.
680 * @param return 0 upon success.
682 int qed_mcp_nvm_rd_cmd(struct qed_hwfn *p_hwfn,
683 struct qed_ptt *p_ptt,
687 u32 *o_mcp_param, u32 *o_txn_size, u32 *o_buf);
690 * @brief indicates whether the MFW objects [under mcp_info] are accessible
694 * @return true iff MFW is running and mcp_info is initialized
696 bool qed_mcp_is_init(struct qed_hwfn *p_hwfn);
699 * @brief request MFW to configure MSI-X for a VF
703 * @param vf_id - absolute inside engine
704 * @param num_sbs - number of entries to request
708 int qed_mcp_config_vf_msix(struct qed_hwfn *p_hwfn,
709 struct qed_ptt *p_ptt, u8 vf_id, u8 num);
712 * @brief - Halt the MCP.
717 * @param return 0 upon success.
719 int qed_mcp_halt(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
722 * @brief - Wake up the MCP.
727 * @param return 0 upon success.
729 int qed_mcp_resume(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
731 int qed_configure_pf_min_bandwidth(struct qed_dev *cdev, u8 min_bw);
732 int qed_configure_pf_max_bandwidth(struct qed_dev *cdev, u8 max_bw);
733 int __qed_configure_pf_max_bandwidth(struct qed_hwfn *p_hwfn,
734 struct qed_ptt *p_ptt,
735 struct qed_mcp_link_state *p_link,
737 int __qed_configure_pf_min_bandwidth(struct qed_hwfn *p_hwfn,
738 struct qed_ptt *p_ptt,
739 struct qed_mcp_link_state *p_link,
742 int qed_mcp_mask_parities(struct qed_hwfn *p_hwfn,
743 struct qed_ptt *p_ptt, u32 mask_parities);
746 * @brief - Sets the MFW's max value for the given resource
751 * @param resc_max_val
754 * @return int - 0 - operation was successful.
757 qed_mcp_set_resc_max_val(struct qed_hwfn *p_hwfn,
758 struct qed_ptt *p_ptt,
759 enum qed_resources res_id,
760 u32 resc_max_val, u32 *p_mcp_resp);
763 * @brief - Gets the MFW allocation info for the given resource
770 * @param p_resc_start
772 * @return int - 0 - operation was successful.
775 qed_mcp_get_resc_info(struct qed_hwfn *p_hwfn,
776 struct qed_ptt *p_ptt,
777 enum qed_resources res_id,
778 u32 *p_mcp_resp, u32 *p_resc_num, u32 *p_resc_start);
781 * @brief Send eswitch mode to MFW
785 * @param eswitch - eswitch mode
787 * @return int - 0 - operation was successful.
789 int qed_mcp_ov_update_eswitch(struct qed_hwfn *p_hwfn,
790 struct qed_ptt *p_ptt,
791 enum qed_ov_eswitch eswitch);
793 #define QED_MCP_RESC_LOCK_MIN_VAL RESOURCE_DUMP
794 #define QED_MCP_RESC_LOCK_MAX_VAL 31
797 QED_RESC_LOCK_DBG_DUMP = QED_MCP_RESC_LOCK_MIN_VAL,
798 QED_RESC_LOCK_RESC_ALLOC = QED_MCP_RESC_LOCK_MAX_VAL
802 * @brief - Initiates PF FLR
807 * @return int - 0 - operation was successful.
809 int qed_mcp_initiate_pf_flr(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
810 struct qed_resc_lock_params {
811 /* Resource number [valid values are 0..31] */
814 /* Lock timeout value in seconds [default, none or 1..254] */
816 #define QED_MCP_RESC_LOCK_TO_DEFAULT 0
817 #define QED_MCP_RESC_LOCK_TO_NONE 255
819 /* Number of times to retry locking */
822 /* The interval in usec between retries */
825 /* Use sleep or delay between retries */
828 /* Will be set as true if the resource is free and granted */
831 /* Will be filled with the resource owner.
832 * [0..15 = PF0-15, 16 = MFW]
838 * @brief Acquires MFW generic resource lock
844 * @return int - 0 - operation was successful.
847 qed_mcp_resc_lock(struct qed_hwfn *p_hwfn,
848 struct qed_ptt *p_ptt, struct qed_resc_lock_params *p_params);
850 struct qed_resc_unlock_params {
851 /* Resource number [valid values are 0..31] */
854 /* Allow to release a resource even if belongs to another PF */
857 /* Will be set as true if the resource is released */
862 * @brief Releases MFW generic resource lock
868 * @return int - 0 - operation was successful.
871 qed_mcp_resc_unlock(struct qed_hwfn *p_hwfn,
872 struct qed_ptt *p_ptt,
873 struct qed_resc_unlock_params *p_params);