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 enum qed_mcp_eee_mode {
59 QED_MCP_EEE_UNSUPPORTED
62 struct qed_mcp_link_params {
63 struct qed_mcp_link_speed_params speed;
64 struct qed_mcp_link_pause_params pause;
66 struct qed_link_eee_params eee;
69 struct qed_mcp_link_capabilities {
70 u32 speed_capabilities;
71 bool default_speed_autoneg;
72 enum qed_mcp_eee_mode default_eee;
77 struct qed_mcp_link_state {
82 /* Actual link speed in Mb/s */
85 /* PF max speed in Mb/s, deduced from line_speed
86 * according to PF max bandwidth configuration.
93 bool parallel_detection;
96 #define QED_LINK_PARTNER_SPEED_1G_HD BIT(0)
97 #define QED_LINK_PARTNER_SPEED_1G_FD BIT(1)
98 #define QED_LINK_PARTNER_SPEED_10G BIT(2)
99 #define QED_LINK_PARTNER_SPEED_20G BIT(3)
100 #define QED_LINK_PARTNER_SPEED_25G BIT(4)
101 #define QED_LINK_PARTNER_SPEED_40G BIT(5)
102 #define QED_LINK_PARTNER_SPEED_50G BIT(6)
103 #define QED_LINK_PARTNER_SPEED_100G BIT(7)
104 u32 partner_adv_speed;
106 bool partner_tx_flow_ctrl_en;
107 bool partner_rx_flow_ctrl_en;
109 #define QED_LINK_PARTNER_SYMMETRIC_PAUSE (1)
110 #define QED_LINK_PARTNER_ASYMMETRIC_PAUSE (2)
111 #define QED_LINK_PARTNER_BOTH_PAUSE (3)
112 u8 partner_adv_pause;
120 struct qed_mcp_function_info {
123 enum qed_pci_personality protocol;
133 #define QED_MCP_VLAN_UNSET (0xffff)
139 struct qed_mcp_nvm_common {
146 struct qed_mcp_drv_version {
148 u8 name[MCP_DRV_VER_STR_SIZE - 4];
151 struct qed_mcp_lan_stats {
157 struct qed_mcp_fcoe_stats {
164 struct qed_mcp_iscsi_stats {
171 struct qed_mcp_rdma_stats {
178 enum qed_mcp_protocol_type {
185 union qed_mcp_protocol_stats {
186 struct qed_mcp_lan_stats lan_stats;
187 struct qed_mcp_fcoe_stats fcoe_stats;
188 struct qed_mcp_iscsi_stats iscsi_stats;
189 struct qed_mcp_rdma_stats rdma_stats;
192 enum qed_ov_eswitch {
201 QED_OV_CLIENT_VENDOR_SPEC
204 enum qed_ov_driver_state {
205 QED_OV_DRIVER_STATE_NOT_LOADED,
206 QED_OV_DRIVER_STATE_DISABLED,
207 QED_OV_DRIVER_STATE_ACTIVE
217 * @brief - returns the link params of the hw function
221 * @returns pointer to link params
223 struct qed_mcp_link_params *qed_mcp_get_link_params(struct qed_hwfn *);
226 * @brief - return the link state of the hw function
230 * @returns pointer to link state
232 struct qed_mcp_link_state *qed_mcp_get_link_state(struct qed_hwfn *);
235 * @brief - return the link capabilities of the hw function
239 * @returns pointer to link capabilities
241 struct qed_mcp_link_capabilities
242 *qed_mcp_get_link_capabilities(struct qed_hwfn *p_hwfn);
245 * @brief Request the MFW to set the the link according to 'link_input'.
249 * @param b_up - raise link if `true'. Reset link if `false'.
253 int qed_mcp_set_link(struct qed_hwfn *p_hwfn,
254 struct qed_ptt *p_ptt,
258 * @brief Get the management firmware version value
262 * @param p_mfw_ver - mfw version value
263 * @param p_running_bundle_id - image id in nvram; Optional.
265 * @return int - 0 - operation was successful.
267 int qed_mcp_get_mfw_ver(struct qed_hwfn *p_hwfn,
268 struct qed_ptt *p_ptt,
269 u32 *p_mfw_ver, u32 *p_running_bundle_id);
272 * @brief Get the MBI version value
276 * @param p_mbi_ver - A pointer to a variable to be filled with the MBI version.
278 * @return int - 0 - operation was successful.
280 int qed_mcp_get_mbi_ver(struct qed_hwfn *p_hwfn,
281 struct qed_ptt *p_ptt, u32 *p_mbi_ver);
284 * @brief Get media type value of the port.
286 * @param cdev - qed dev pointer
288 * @param mfw_ver - media type value
291 * 0 - Operation was successul.
292 * -EBUSY - Operation failed
294 int qed_mcp_get_media_type(struct qed_hwfn *p_hwfn,
295 struct qed_ptt *p_ptt, u32 *media_type);
298 * @brief General function for sending commands to the MCP
299 * mailbox. It acquire mutex lock for the entire
300 * operation, from sending the request until the MCP
301 * response. Waiting for MCP response will be checked up
302 * to 5 seconds every 5ms.
304 * @param p_hwfn - hw function
305 * @param p_ptt - PTT required for register access
306 * @param cmd - command to be sent to the MCP.
307 * @param param - Optional param
308 * @param o_mcp_resp - The MCP response code (exclude sequence).
309 * @param o_mcp_param- Optional parameter provided by the MCP
311 * @return int - 0 - operation
314 int qed_mcp_cmd(struct qed_hwfn *p_hwfn,
315 struct qed_ptt *p_ptt,
322 * @brief - drains the nig, allowing completion to pass in case of pauses.
323 * (Should be called only from sleepable context)
328 int qed_mcp_drain(struct qed_hwfn *p_hwfn,
329 struct qed_ptt *p_ptt);
332 * @brief Get the flash size value
336 * @param p_flash_size - flash size in bytes to be filled.
338 * @return int - 0 - operation was successul.
340 int qed_mcp_get_flash_size(struct qed_hwfn *p_hwfn,
341 struct qed_ptt *p_ptt,
345 * @brief Send driver version to MFW
349 * @param version - Version value
350 * @param name - Protocol driver name
352 * @return int - 0 - operation was successul.
355 qed_mcp_send_drv_version(struct qed_hwfn *p_hwfn,
356 struct qed_ptt *p_ptt,
357 struct qed_mcp_drv_version *p_ver);
360 * @brief Notify MFW about the change in base device properties
364 * @param client - qed client type
366 * @return int - 0 - operation was successful.
368 int qed_mcp_ov_update_current_config(struct qed_hwfn *p_hwfn,
369 struct qed_ptt *p_ptt,
370 enum qed_ov_client client);
373 * @brief Notify MFW about the driver state
377 * @param drv_state - Driver state
379 * @return int - 0 - operation was successful.
381 int qed_mcp_ov_update_driver_state(struct qed_hwfn *p_hwfn,
382 struct qed_ptt *p_ptt,
383 enum qed_ov_driver_state drv_state);
386 * @brief Send MTU size to MFW
390 * @param mtu - MTU size
392 * @return int - 0 - operation was successful.
394 int qed_mcp_ov_update_mtu(struct qed_hwfn *p_hwfn,
395 struct qed_ptt *p_ptt, u16 mtu);
398 * @brief Send MAC address to MFW
402 * @param mac - MAC address
404 * @return int - 0 - operation was successful.
406 int qed_mcp_ov_update_mac(struct qed_hwfn *p_hwfn,
407 struct qed_ptt *p_ptt, u8 *mac);
410 * @brief Send WOL mode to MFW
414 * @param wol - WOL mode
416 * @return int - 0 - operation was successful.
418 int qed_mcp_ov_update_wol(struct qed_hwfn *p_hwfn,
419 struct qed_ptt *p_ptt,
420 enum qed_ov_wol wol);
423 * @brief Set LED status
427 * @param mode - LED mode
429 * @return int - 0 - operation was successful.
431 int qed_mcp_set_led(struct qed_hwfn *p_hwfn,
432 struct qed_ptt *p_ptt,
433 enum qed_led_mode mode);
436 * @brief Read from nvm
439 * @param addr - nvm offset
440 * @param p_buf - nvm read buffer
441 * @param len - buffer len
443 * @return int - 0 - operation was successful.
445 int qed_mcp_nvm_read(struct qed_dev *cdev, u32 addr, u8 *p_buf, u32 len);
447 struct qed_nvm_image_att {
453 * @brief Allows reading a whole nvram image
457 * @param image_id - image requested for reading
458 * @param p_buffer - allocated buffer into which to fill data
459 * @param buffer_len - length of the allocated buffer.
461 * @return 0 iff p_buffer now contains the nvram image.
463 int qed_mcp_get_nvm_image(struct qed_hwfn *p_hwfn,
464 struct qed_ptt *p_ptt,
465 enum qed_nvm_images image_id,
466 u8 *p_buffer, u32 buffer_len);
469 * @brief Bist register test
471 * @param p_hwfn - hw function
472 * @param p_ptt - PTT required for register access
474 * @return int - 0 - operation was successful.
476 int qed_mcp_bist_register_test(struct qed_hwfn *p_hwfn,
477 struct qed_ptt *p_ptt);
480 * @brief Bist clock test
482 * @param p_hwfn - hw function
483 * @param p_ptt - PTT required for register access
485 * @return int - 0 - operation was successful.
487 int qed_mcp_bist_clock_test(struct qed_hwfn *p_hwfn,
488 struct qed_ptt *p_ptt);
491 * @brief Bist nvm test - get number of images
493 * @param p_hwfn - hw function
494 * @param p_ptt - PTT required for register access
495 * @param num_images - number of images if operation was
496 * successful. 0 if not.
498 * @return int - 0 - operation was successful.
500 int qed_mcp_bist_nvm_test_get_num_images(struct qed_hwfn *p_hwfn,
501 struct qed_ptt *p_ptt,
505 * @brief Bist nvm test - get image attributes by index
507 * @param p_hwfn - hw function
508 * @param p_ptt - PTT required for register access
509 * @param p_image_att - Attributes of image
510 * @param image_index - Index of image to get information for
512 * @return int - 0 - operation was successful.
514 int qed_mcp_bist_nvm_test_get_image_att(struct qed_hwfn *p_hwfn,
515 struct qed_ptt *p_ptt,
516 struct bist_nvm_image_att *p_image_att,
519 /* Using hwfn number (and not pf_num) is required since in CMT mode,
520 * same pf_num may be used by two different hwfn
521 * TODO - this shouldn't really be in .h file, but until all fields
522 * required during hw-init will be placed in their correct place in shmem
523 * we need it in qed_dev.c [for readin the nvram reflection in shmem].
525 #define MCP_PF_ID_BY_REL(p_hwfn, rel_pfid) (QED_IS_BB((p_hwfn)->cdev) ? \
527 ((p_hwfn)->abs_pf_id & 1) << 3) : \
529 #define MCP_PF_ID(p_hwfn) MCP_PF_ID_BY_REL(p_hwfn, (p_hwfn)->rel_pf_id)
531 #define MFW_PORT(_p_hwfn) ((_p_hwfn)->abs_pf_id % \
532 ((_p_hwfn)->cdev->num_ports_in_engine * \
533 qed_device_num_engines((_p_hwfn)->cdev)))
535 struct qed_mcp_info {
536 /* List for mailbox commands which were sent and wait for a response */
537 struct list_head cmd_list;
539 /* Spinlock used for protecting the access to the mailbox commands list
540 * and the sending of the commands.
544 /* Flag to indicate whether sending a MFW mailbox command is blocked */
547 /* Spinlock used for syncing SW link-changes and link-changes
548 * originating from attention context.
550 spinlock_t link_lock;
558 struct qed_mcp_link_params link_input;
559 struct qed_mcp_link_state link_output;
560 struct qed_mcp_link_capabilities link_capabilities;
561 struct qed_mcp_function_info func_info;
567 /* Capabilties negotiated with the MFW */
571 struct qed_mcp_mb_params {
581 #define QED_MB_FLAG_CAN_SLEEP (0x1 << 0)
582 #define QED_MB_FLAG_AVOID_BLOCK (0x1 << 1)
583 #define QED_MB_FLAGS_IS_SET(params, flag) \
584 ({ typeof(params) __params = (params); \
585 (__params && (__params->flags & QED_MB_FLAG_ ## flag)); })
589 * @brief Initialize the interface with the MCP
591 * @param p_hwfn - HW func
592 * @param p_ptt - PTT required for register access
596 int qed_mcp_cmd_init(struct qed_hwfn *p_hwfn,
597 struct qed_ptt *p_ptt);
600 * @brief Initialize the port interface with the MCP
604 * Can only be called after `num_ports_in_engines' is set
606 void qed_mcp_cmd_port_init(struct qed_hwfn *p_hwfn,
607 struct qed_ptt *p_ptt);
609 * @brief Releases resources allocated during the init process.
611 * @param p_hwfn - HW func
612 * @param p_ptt - PTT required for register access
617 int qed_mcp_free(struct qed_hwfn *p_hwfn);
620 * @brief This function is called from the DPC context. After
621 * pointing PTT to the mfw mb, check for events sent by the MCP
622 * to the driver and ack them. In case a critical event
623 * detected, it will be handled here, otherwise the work will be
624 * queued to a sleepable work-queue.
626 * @param p_hwfn - HW function
627 * @param p_ptt - PTT required for register access
628 * @return int - 0 - operation
631 int qed_mcp_handle_events(struct qed_hwfn *p_hwfn,
632 struct qed_ptt *p_ptt);
639 struct qed_load_req_params {
641 enum qed_drv_role drv_role;
643 bool avoid_eng_reset;
644 enum qed_override_force_load override_force_load;
651 * @brief Sends a LOAD_REQ to the MFW, and in case the operation succeeds,
652 * returns whether this PF is the first on the engine/port or function.
658 * @return int - 0 - Operation was successful.
660 int qed_mcp_load_req(struct qed_hwfn *p_hwfn,
661 struct qed_ptt *p_ptt,
662 struct qed_load_req_params *p_params);
665 * @brief Sends a UNLOAD_REQ message to the MFW
670 * @return int - 0 - Operation was successful.
672 int qed_mcp_unload_req(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
675 * @brief Sends a UNLOAD_DONE message to the MFW
680 * @return int - 0 - Operation was successful.
682 int qed_mcp_unload_done(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
685 * @brief Read the MFW mailbox into Current buffer.
690 void qed_mcp_read_mb(struct qed_hwfn *p_hwfn,
691 struct qed_ptt *p_ptt);
694 * @brief Ack to mfw that driver finished FLR process for VFs
698 * @param vfs_to_ack - bit mask of all engine VFs for which the PF acks.
700 * @param return int - 0 upon success.
702 int qed_mcp_ack_vf_flr(struct qed_hwfn *p_hwfn,
703 struct qed_ptt *p_ptt, u32 *vfs_to_ack);
706 * @brief - calls during init to read shmem of all function-related info.
710 * @param return 0 upon success.
712 int qed_mcp_fill_shmem_func_info(struct qed_hwfn *p_hwfn,
713 struct qed_ptt *p_ptt);
716 * @brief - Reset the MCP using mailbox command.
721 * @param return 0 upon success.
723 int qed_mcp_reset(struct qed_hwfn *p_hwfn,
724 struct qed_ptt *p_ptt);
727 * @brief - Sends an NVM read command request to the MFW to get
732 * @param cmd - Command: DRV_MSG_CODE_NVM_GET_FILE_DATA or
733 * DRV_MSG_CODE_NVM_READ_NVRAM commands
734 * @param param - [0:23] - Offset [24:31] - Size
735 * @param o_mcp_resp - MCP response
736 * @param o_mcp_param - MCP response param
737 * @param o_txn_size - Buffer size output
738 * @param o_buf - Pointer to the buffer returned by the MFW.
740 * @param return 0 upon success.
742 int qed_mcp_nvm_rd_cmd(struct qed_hwfn *p_hwfn,
743 struct qed_ptt *p_ptt,
747 u32 *o_mcp_param, u32 *o_txn_size, u32 *o_buf);
750 * @brief indicates whether the MFW objects [under mcp_info] are accessible
754 * @return true iff MFW is running and mcp_info is initialized
756 bool qed_mcp_is_init(struct qed_hwfn *p_hwfn);
759 * @brief request MFW to configure MSI-X for a VF
763 * @param vf_id - absolute inside engine
764 * @param num_sbs - number of entries to request
768 int qed_mcp_config_vf_msix(struct qed_hwfn *p_hwfn,
769 struct qed_ptt *p_ptt, u8 vf_id, u8 num);
772 * @brief - Halt the MCP.
777 * @param return 0 upon success.
779 int qed_mcp_halt(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
782 * @brief - Wake up the MCP.
787 * @param return 0 upon success.
789 int qed_mcp_resume(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
791 int qed_configure_pf_min_bandwidth(struct qed_dev *cdev, u8 min_bw);
792 int qed_configure_pf_max_bandwidth(struct qed_dev *cdev, u8 max_bw);
793 int __qed_configure_pf_max_bandwidth(struct qed_hwfn *p_hwfn,
794 struct qed_ptt *p_ptt,
795 struct qed_mcp_link_state *p_link,
797 int __qed_configure_pf_min_bandwidth(struct qed_hwfn *p_hwfn,
798 struct qed_ptt *p_ptt,
799 struct qed_mcp_link_state *p_link,
802 int qed_mcp_mask_parities(struct qed_hwfn *p_hwfn,
803 struct qed_ptt *p_ptt, u32 mask_parities);
806 * @brief - Sets the MFW's max value for the given resource
811 * @param resc_max_val
814 * @return int - 0 - operation was successful.
817 qed_mcp_set_resc_max_val(struct qed_hwfn *p_hwfn,
818 struct qed_ptt *p_ptt,
819 enum qed_resources res_id,
820 u32 resc_max_val, u32 *p_mcp_resp);
823 * @brief - Gets the MFW allocation info for the given resource
830 * @param p_resc_start
832 * @return int - 0 - operation was successful.
835 qed_mcp_get_resc_info(struct qed_hwfn *p_hwfn,
836 struct qed_ptt *p_ptt,
837 enum qed_resources res_id,
838 u32 *p_mcp_resp, u32 *p_resc_num, u32 *p_resc_start);
841 * @brief Send eswitch mode to MFW
845 * @param eswitch - eswitch mode
847 * @return int - 0 - operation was successful.
849 int qed_mcp_ov_update_eswitch(struct qed_hwfn *p_hwfn,
850 struct qed_ptt *p_ptt,
851 enum qed_ov_eswitch eswitch);
853 #define QED_MCP_RESC_LOCK_MIN_VAL RESOURCE_DUMP
854 #define QED_MCP_RESC_LOCK_MAX_VAL 31
857 QED_RESC_LOCK_DBG_DUMP = QED_MCP_RESC_LOCK_MIN_VAL,
858 QED_RESC_LOCK_PTP_PORT0,
859 QED_RESC_LOCK_PTP_PORT1,
860 QED_RESC_LOCK_PTP_PORT2,
861 QED_RESC_LOCK_PTP_PORT3,
862 QED_RESC_LOCK_RESC_ALLOC = QED_MCP_RESC_LOCK_MAX_VAL,
863 QED_RESC_LOCK_RESC_INVALID
867 * @brief - Initiates PF FLR
872 * @return int - 0 - operation was successful.
874 int qed_mcp_initiate_pf_flr(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
875 struct qed_resc_lock_params {
876 /* Resource number [valid values are 0..31] */
879 /* Lock timeout value in seconds [default, none or 1..254] */
881 #define QED_MCP_RESC_LOCK_TO_DEFAULT 0
882 #define QED_MCP_RESC_LOCK_TO_NONE 255
884 /* Number of times to retry locking */
886 #define QED_MCP_RESC_LOCK_RETRY_CNT_DFLT 10
888 /* The interval in usec between retries */
890 #define QED_MCP_RESC_LOCK_RETRY_VAL_DFLT 10000
892 /* Use sleep or delay between retries */
895 /* Will be set as true if the resource is free and granted */
898 /* Will be filled with the resource owner.
899 * [0..15 = PF0-15, 16 = MFW]
905 * @brief Acquires MFW generic resource lock
911 * @return int - 0 - operation was successful.
914 qed_mcp_resc_lock(struct qed_hwfn *p_hwfn,
915 struct qed_ptt *p_ptt, struct qed_resc_lock_params *p_params);
917 struct qed_resc_unlock_params {
918 /* Resource number [valid values are 0..31] */
921 /* Allow to release a resource even if belongs to another PF */
924 /* Will be set as true if the resource is released */
929 * @brief Releases MFW generic resource lock
935 * @return int - 0 - operation was successful.
938 qed_mcp_resc_unlock(struct qed_hwfn *p_hwfn,
939 struct qed_ptt *p_ptt,
940 struct qed_resc_unlock_params *p_params);
943 * @brief - default initialization for lock/unlock resource structs
945 * @param p_lock - lock params struct to be initialized; Can be NULL
946 * @param p_unlock - unlock params struct to be initialized; Can be NULL
947 * @param resource - the requested resource
948 * @paral b_is_permanent - disable retries & aging when set
950 void qed_mcp_resc_lock_default_init(struct qed_resc_lock_params *p_lock,
951 struct qed_resc_unlock_params *p_unlock,
953 resource, bool b_is_permanent);
955 * @brief Learn of supported MFW features; To be done during early init
960 int qed_mcp_get_capabilities(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
963 * @brief Inform MFW of set of features supported by driver. Should be done
964 * inside the content of the LOAD_REQ.
969 int qed_mcp_set_capabilities(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);