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
287 * @param mfw_ver - media type value
290 * 0 - Operation was successul.
291 * -EBUSY - Operation failed
293 int qed_mcp_get_media_type(struct qed_dev
*cdev
,
297 * @brief General function for sending commands to the MCP
298 * mailbox. It acquire mutex lock for the entire
299 * operation, from sending the request until the MCP
300 * response. Waiting for MCP response will be checked up
301 * to 5 seconds every 5ms.
303 * @param p_hwfn - hw function
304 * @param p_ptt - PTT required for register access
305 * @param cmd - command to be sent to the MCP.
306 * @param param - Optional param
307 * @param o_mcp_resp - The MCP response code (exclude sequence).
308 * @param o_mcp_param- Optional parameter provided by the MCP
310 * @return int - 0 - operation
313 int qed_mcp_cmd(struct qed_hwfn
*p_hwfn
,
314 struct qed_ptt
*p_ptt
,
321 * @brief - drains the nig, allowing completion to pass in case of pauses.
322 * (Should be called only from sleepable context)
327 int qed_mcp_drain(struct qed_hwfn
*p_hwfn
,
328 struct qed_ptt
*p_ptt
);
331 * @brief Get the flash size value
335 * @param p_flash_size - flash size in bytes to be filled.
337 * @return int - 0 - operation was successul.
339 int qed_mcp_get_flash_size(struct qed_hwfn
*p_hwfn
,
340 struct qed_ptt
*p_ptt
,
344 * @brief Send driver version to MFW
348 * @param version - Version value
349 * @param name - Protocol driver name
351 * @return int - 0 - operation was successul.
354 qed_mcp_send_drv_version(struct qed_hwfn
*p_hwfn
,
355 struct qed_ptt
*p_ptt
,
356 struct qed_mcp_drv_version
*p_ver
);
359 * @brief Notify MFW about the change in base device properties
363 * @param client - qed client type
365 * @return int - 0 - operation was successful.
367 int qed_mcp_ov_update_current_config(struct qed_hwfn
*p_hwfn
,
368 struct qed_ptt
*p_ptt
,
369 enum qed_ov_client client
);
372 * @brief Notify MFW about the driver state
376 * @param drv_state - Driver state
378 * @return int - 0 - operation was successful.
380 int qed_mcp_ov_update_driver_state(struct qed_hwfn
*p_hwfn
,
381 struct qed_ptt
*p_ptt
,
382 enum qed_ov_driver_state drv_state
);
385 * @brief Send MTU size to MFW
389 * @param mtu - MTU size
391 * @return int - 0 - operation was successful.
393 int qed_mcp_ov_update_mtu(struct qed_hwfn
*p_hwfn
,
394 struct qed_ptt
*p_ptt
, u16 mtu
);
397 * @brief Send MAC address to MFW
401 * @param mac - MAC address
403 * @return int - 0 - operation was successful.
405 int qed_mcp_ov_update_mac(struct qed_hwfn
*p_hwfn
,
406 struct qed_ptt
*p_ptt
, u8
*mac
);
409 * @brief Send WOL mode to MFW
413 * @param wol - WOL mode
415 * @return int - 0 - operation was successful.
417 int qed_mcp_ov_update_wol(struct qed_hwfn
*p_hwfn
,
418 struct qed_ptt
*p_ptt
,
419 enum qed_ov_wol wol
);
422 * @brief Set LED status
426 * @param mode - LED mode
428 * @return int - 0 - operation was successful.
430 int qed_mcp_set_led(struct qed_hwfn
*p_hwfn
,
431 struct qed_ptt
*p_ptt
,
432 enum qed_led_mode mode
);
435 * @brief Read from nvm
438 * @param addr - nvm offset
439 * @param p_buf - nvm read buffer
440 * @param len - buffer len
442 * @return int - 0 - operation was successful.
444 int qed_mcp_nvm_read(struct qed_dev
*cdev
, u32 addr
, u8
*p_buf
, u32 len
);
446 struct qed_nvm_image_att
{
452 * @brief Allows reading a whole nvram image
456 * @param image_id - image requested for reading
457 * @param p_buffer - allocated buffer into which to fill data
458 * @param buffer_len - length of the allocated buffer.
460 * @return 0 iff p_buffer now contains the nvram image.
462 int qed_mcp_get_nvm_image(struct qed_hwfn
*p_hwfn
,
463 struct qed_ptt
*p_ptt
,
464 enum qed_nvm_images image_id
,
465 u8
*p_buffer
, u32 buffer_len
);
468 * @brief Bist register test
470 * @param p_hwfn - hw function
471 * @param p_ptt - PTT required for register access
473 * @return int - 0 - operation was successful.
475 int qed_mcp_bist_register_test(struct qed_hwfn
*p_hwfn
,
476 struct qed_ptt
*p_ptt
);
479 * @brief Bist clock test
481 * @param p_hwfn - hw function
482 * @param p_ptt - PTT required for register access
484 * @return int - 0 - operation was successful.
486 int qed_mcp_bist_clock_test(struct qed_hwfn
*p_hwfn
,
487 struct qed_ptt
*p_ptt
);
490 * @brief Bist nvm test - get number of images
492 * @param p_hwfn - hw function
493 * @param p_ptt - PTT required for register access
494 * @param num_images - number of images if operation was
495 * successful. 0 if not.
497 * @return int - 0 - operation was successful.
499 int qed_mcp_bist_nvm_test_get_num_images(struct qed_hwfn
*p_hwfn
,
500 struct qed_ptt
*p_ptt
,
504 * @brief Bist nvm test - get image attributes by index
506 * @param p_hwfn - hw function
507 * @param p_ptt - PTT required for register access
508 * @param p_image_att - Attributes of image
509 * @param image_index - Index of image to get information for
511 * @return int - 0 - operation was successful.
513 int qed_mcp_bist_nvm_test_get_image_att(struct qed_hwfn
*p_hwfn
,
514 struct qed_ptt
*p_ptt
,
515 struct bist_nvm_image_att
*p_image_att
,
518 /* Using hwfn number (and not pf_num) is required since in CMT mode,
519 * same pf_num may be used by two different hwfn
520 * TODO - this shouldn't really be in .h file, but until all fields
521 * required during hw-init will be placed in their correct place in shmem
522 * we need it in qed_dev.c [for readin the nvram reflection in shmem].
524 #define MCP_PF_ID_BY_REL(p_hwfn, rel_pfid) (QED_IS_BB((p_hwfn)->cdev) ? \
526 ((p_hwfn)->abs_pf_id & 1) << 3) : \
528 #define MCP_PF_ID(p_hwfn) MCP_PF_ID_BY_REL(p_hwfn, (p_hwfn)->rel_pf_id)
530 #define MFW_PORT(_p_hwfn) ((_p_hwfn)->abs_pf_id % \
531 ((_p_hwfn)->cdev->num_ports_in_engine * \
532 qed_device_num_engines((_p_hwfn)->cdev)))
534 struct qed_mcp_info
{
535 /* List for mailbox commands which were sent and wait for a response */
536 struct list_head cmd_list
;
538 /* Spinlock used for protecting the access to the mailbox commands list
539 * and the sending of the commands.
543 /* Spinlock used for syncing SW link-changes and link-changes
544 * originating from attention context.
546 spinlock_t link_lock
;
547 bool block_mb_sending
;
554 struct qed_mcp_link_params link_input
;
555 struct qed_mcp_link_state link_output
;
556 struct qed_mcp_link_capabilities link_capabilities
;
557 struct qed_mcp_function_info func_info
;
563 /* Capabilties negotiated with the MFW */
567 struct qed_mcp_mb_params
{
579 * @brief Initialize the interface with the MCP
581 * @param p_hwfn - HW func
582 * @param p_ptt - PTT required for register access
586 int qed_mcp_cmd_init(struct qed_hwfn
*p_hwfn
,
587 struct qed_ptt
*p_ptt
);
590 * @brief Initialize the port interface with the MCP
594 * Can only be called after `num_ports_in_engines' is set
596 void qed_mcp_cmd_port_init(struct qed_hwfn
*p_hwfn
,
597 struct qed_ptt
*p_ptt
);
599 * @brief Releases resources allocated during the init process.
601 * @param p_hwfn - HW func
602 * @param p_ptt - PTT required for register access
607 int qed_mcp_free(struct qed_hwfn
*p_hwfn
);
610 * @brief This function is called from the DPC context. After
611 * pointing PTT to the mfw mb, check for events sent by the MCP
612 * to the driver and ack them. In case a critical event
613 * detected, it will be handled here, otherwise the work will be
614 * queued to a sleepable work-queue.
616 * @param p_hwfn - HW function
617 * @param p_ptt - PTT required for register access
618 * @return int - 0 - operation
621 int qed_mcp_handle_events(struct qed_hwfn
*p_hwfn
,
622 struct qed_ptt
*p_ptt
);
629 struct qed_load_req_params
{
631 enum qed_drv_role drv_role
;
633 bool avoid_eng_reset
;
634 enum qed_override_force_load override_force_load
;
641 * @brief Sends a LOAD_REQ to the MFW, and in case the operation succeeds,
642 * returns whether this PF is the first on the engine/port or function.
648 * @return int - 0 - Operation was successful.
650 int qed_mcp_load_req(struct qed_hwfn
*p_hwfn
,
651 struct qed_ptt
*p_ptt
,
652 struct qed_load_req_params
*p_params
);
655 * @brief Sends a UNLOAD_REQ message to the MFW
660 * @return int - 0 - Operation was successful.
662 int qed_mcp_unload_req(struct qed_hwfn
*p_hwfn
, struct qed_ptt
*p_ptt
);
665 * @brief Sends a UNLOAD_DONE message to the MFW
670 * @return int - 0 - Operation was successful.
672 int qed_mcp_unload_done(struct qed_hwfn
*p_hwfn
, struct qed_ptt
*p_ptt
);
675 * @brief Read the MFW mailbox into Current buffer.
680 void qed_mcp_read_mb(struct qed_hwfn
*p_hwfn
,
681 struct qed_ptt
*p_ptt
);
684 * @brief Ack to mfw that driver finished FLR process for VFs
688 * @param vfs_to_ack - bit mask of all engine VFs for which the PF acks.
690 * @param return int - 0 upon success.
692 int qed_mcp_ack_vf_flr(struct qed_hwfn
*p_hwfn
,
693 struct qed_ptt
*p_ptt
, u32
*vfs_to_ack
);
696 * @brief - calls during init to read shmem of all function-related info.
700 * @param return 0 upon success.
702 int qed_mcp_fill_shmem_func_info(struct qed_hwfn
*p_hwfn
,
703 struct qed_ptt
*p_ptt
);
706 * @brief - Reset the MCP using mailbox command.
711 * @param return 0 upon success.
713 int qed_mcp_reset(struct qed_hwfn
*p_hwfn
,
714 struct qed_ptt
*p_ptt
);
717 * @brief - Sends an NVM read command request to the MFW to get
722 * @param cmd - Command: DRV_MSG_CODE_NVM_GET_FILE_DATA or
723 * DRV_MSG_CODE_NVM_READ_NVRAM commands
724 * @param param - [0:23] - Offset [24:31] - Size
725 * @param o_mcp_resp - MCP response
726 * @param o_mcp_param - MCP response param
727 * @param o_txn_size - Buffer size output
728 * @param o_buf - Pointer to the buffer returned by the MFW.
730 * @param return 0 upon success.
732 int qed_mcp_nvm_rd_cmd(struct qed_hwfn
*p_hwfn
,
733 struct qed_ptt
*p_ptt
,
737 u32
*o_mcp_param
, u32
*o_txn_size
, u32
*o_buf
);
740 * @brief indicates whether the MFW objects [under mcp_info] are accessible
744 * @return true iff MFW is running and mcp_info is initialized
746 bool qed_mcp_is_init(struct qed_hwfn
*p_hwfn
);
749 * @brief request MFW to configure MSI-X for a VF
753 * @param vf_id - absolute inside engine
754 * @param num_sbs - number of entries to request
758 int qed_mcp_config_vf_msix(struct qed_hwfn
*p_hwfn
,
759 struct qed_ptt
*p_ptt
, u8 vf_id
, u8 num
);
762 * @brief - Halt the MCP.
767 * @param return 0 upon success.
769 int qed_mcp_halt(struct qed_hwfn
*p_hwfn
, struct qed_ptt
*p_ptt
);
772 * @brief - Wake up the MCP.
777 * @param return 0 upon success.
779 int qed_mcp_resume(struct qed_hwfn
*p_hwfn
, struct qed_ptt
*p_ptt
);
781 int qed_configure_pf_min_bandwidth(struct qed_dev
*cdev
, u8 min_bw
);
782 int qed_configure_pf_max_bandwidth(struct qed_dev
*cdev
, u8 max_bw
);
783 int __qed_configure_pf_max_bandwidth(struct qed_hwfn
*p_hwfn
,
784 struct qed_ptt
*p_ptt
,
785 struct qed_mcp_link_state
*p_link
,
787 int __qed_configure_pf_min_bandwidth(struct qed_hwfn
*p_hwfn
,
788 struct qed_ptt
*p_ptt
,
789 struct qed_mcp_link_state
*p_link
,
792 int qed_mcp_mask_parities(struct qed_hwfn
*p_hwfn
,
793 struct qed_ptt
*p_ptt
, u32 mask_parities
);
796 * @brief - Sets the MFW's max value for the given resource
801 * @param resc_max_val
804 * @return int - 0 - operation was successful.
807 qed_mcp_set_resc_max_val(struct qed_hwfn
*p_hwfn
,
808 struct qed_ptt
*p_ptt
,
809 enum qed_resources res_id
,
810 u32 resc_max_val
, u32
*p_mcp_resp
);
813 * @brief - Gets the MFW allocation info for the given resource
820 * @param p_resc_start
822 * @return int - 0 - operation was successful.
825 qed_mcp_get_resc_info(struct qed_hwfn
*p_hwfn
,
826 struct qed_ptt
*p_ptt
,
827 enum qed_resources res_id
,
828 u32
*p_mcp_resp
, u32
*p_resc_num
, u32
*p_resc_start
);
831 * @brief Send eswitch mode to MFW
835 * @param eswitch - eswitch mode
837 * @return int - 0 - operation was successful.
839 int qed_mcp_ov_update_eswitch(struct qed_hwfn
*p_hwfn
,
840 struct qed_ptt
*p_ptt
,
841 enum qed_ov_eswitch eswitch
);
843 #define QED_MCP_RESC_LOCK_MIN_VAL RESOURCE_DUMP
844 #define QED_MCP_RESC_LOCK_MAX_VAL 31
847 QED_RESC_LOCK_DBG_DUMP
= QED_MCP_RESC_LOCK_MIN_VAL
,
848 QED_RESC_LOCK_PTP_PORT0
,
849 QED_RESC_LOCK_PTP_PORT1
,
850 QED_RESC_LOCK_PTP_PORT2
,
851 QED_RESC_LOCK_PTP_PORT3
,
852 QED_RESC_LOCK_RESC_ALLOC
= QED_MCP_RESC_LOCK_MAX_VAL
,
853 QED_RESC_LOCK_RESC_INVALID
857 * @brief - Initiates PF FLR
862 * @return int - 0 - operation was successful.
864 int qed_mcp_initiate_pf_flr(struct qed_hwfn
*p_hwfn
, struct qed_ptt
*p_ptt
);
865 struct qed_resc_lock_params
{
866 /* Resource number [valid values are 0..31] */
869 /* Lock timeout value in seconds [default, none or 1..254] */
871 #define QED_MCP_RESC_LOCK_TO_DEFAULT 0
872 #define QED_MCP_RESC_LOCK_TO_NONE 255
874 /* Number of times to retry locking */
876 #define QED_MCP_RESC_LOCK_RETRY_CNT_DFLT 10
878 /* The interval in usec between retries */
880 #define QED_MCP_RESC_LOCK_RETRY_VAL_DFLT 10000
882 /* Use sleep or delay between retries */
885 /* Will be set as true if the resource is free and granted */
888 /* Will be filled with the resource owner.
889 * [0..15 = PF0-15, 16 = MFW]
895 * @brief Acquires MFW generic resource lock
901 * @return int - 0 - operation was successful.
904 qed_mcp_resc_lock(struct qed_hwfn
*p_hwfn
,
905 struct qed_ptt
*p_ptt
, struct qed_resc_lock_params
*p_params
);
907 struct qed_resc_unlock_params
{
908 /* Resource number [valid values are 0..31] */
911 /* Allow to release a resource even if belongs to another PF */
914 /* Will be set as true if the resource is released */
919 * @brief Releases MFW generic resource lock
925 * @return int - 0 - operation was successful.
928 qed_mcp_resc_unlock(struct qed_hwfn
*p_hwfn
,
929 struct qed_ptt
*p_ptt
,
930 struct qed_resc_unlock_params
*p_params
);
933 * @brief - default initialization for lock/unlock resource structs
935 * @param p_lock - lock params struct to be initialized; Can be NULL
936 * @param p_unlock - unlock params struct to be initialized; Can be NULL
937 * @param resource - the requested resource
938 * @paral b_is_permanent - disable retries & aging when set
940 void qed_mcp_resc_lock_default_init(struct qed_resc_lock_params
*p_lock
,
941 struct qed_resc_unlock_params
*p_unlock
,
943 resource
, bool b_is_permanent
);
945 * @brief Learn of supported MFW features; To be done during early init
950 int qed_mcp_get_capabilities(struct qed_hwfn
*p_hwfn
, struct qed_ptt
*p_ptt
);
953 * @brief Inform MFW of set of features supported by driver. Should be done
954 * inside the content of the LOAD_REQ.
959 int qed_mcp_set_capabilities(struct qed_hwfn
*p_hwfn
, struct qed_ptt
*p_ptt
);