1 /* QLogic qed NIC Driver
2 * Copyright (c) 2015 QLogic Corporation
4 * This software is available under the terms of the GNU General Public License
5 * (GPL) Version 2, available from the file COPYING in the main directory of
12 #include <linux/types.h>
13 #include <linux/delay.h>
14 #include <linux/slab.h>
15 #include <linux/spinlock.h>
18 struct qed_mcp_link_speed_params
{
20 u32 advertised_speeds
; /* bitmask of DRV_SPEED_CAPABILITY */
21 u32 forced_speed
; /* In Mb/s */
24 struct qed_mcp_link_pause_params
{
30 struct qed_mcp_link_params
{
31 struct qed_mcp_link_speed_params speed
;
32 struct qed_mcp_link_pause_params pause
;
36 struct qed_mcp_link_capabilities
{
37 u32 speed_capabilities
;
40 struct qed_mcp_link_state
{
45 /* Actual link speed in Mb/s */
48 /* PF max speed in Mb/s, deduced from line_speed
49 * according to PF max bandwidth configuration.
56 bool parallel_detection
;
59 #define QED_LINK_PARTNER_SPEED_1G_HD BIT(0)
60 #define QED_LINK_PARTNER_SPEED_1G_FD BIT(1)
61 #define QED_LINK_PARTNER_SPEED_10G BIT(2)
62 #define QED_LINK_PARTNER_SPEED_20G BIT(3)
63 #define QED_LINK_PARTNER_SPEED_25G BIT(4)
64 #define QED_LINK_PARTNER_SPEED_40G BIT(5)
65 #define QED_LINK_PARTNER_SPEED_50G BIT(6)
66 #define QED_LINK_PARTNER_SPEED_100G BIT(7)
67 u32 partner_adv_speed
;
69 bool partner_tx_flow_ctrl_en
;
70 bool partner_rx_flow_ctrl_en
;
72 #define QED_LINK_PARTNER_SYMMETRIC_PAUSE (1)
73 #define QED_LINK_PARTNER_ASYMMETRIC_PAUSE (2)
74 #define QED_LINK_PARTNER_BOTH_PAUSE (3)
80 struct qed_mcp_function_info
{
83 enum qed_pci_personality protocol
;
93 #define QED_MCP_VLAN_UNSET (0xffff)
97 struct qed_mcp_nvm_common
{
104 struct qed_mcp_drv_version
{
106 u8 name
[MCP_DRV_VER_STR_SIZE
- 4];
109 struct qed_mcp_lan_stats
{
115 struct qed_mcp_fcoe_stats
{
122 struct qed_mcp_iscsi_stats
{
129 struct qed_mcp_rdma_stats
{
136 enum qed_mcp_protocol_type
{
143 union qed_mcp_protocol_stats
{
144 struct qed_mcp_lan_stats lan_stats
;
145 struct qed_mcp_fcoe_stats fcoe_stats
;
146 struct qed_mcp_iscsi_stats iscsi_stats
;
147 struct qed_mcp_rdma_stats rdma_stats
;
151 * @brief - returns the link params of the hw function
155 * @returns pointer to link params
157 struct qed_mcp_link_params
*qed_mcp_get_link_params(struct qed_hwfn
*);
160 * @brief - return the link state of the hw function
164 * @returns pointer to link state
166 struct qed_mcp_link_state
*qed_mcp_get_link_state(struct qed_hwfn
*);
169 * @brief - return the link capabilities of the hw function
173 * @returns pointer to link capabilities
175 struct qed_mcp_link_capabilities
176 *qed_mcp_get_link_capabilities(struct qed_hwfn
*p_hwfn
);
179 * @brief Request the MFW to set the the link according to 'link_input'.
183 * @param b_up - raise link if `true'. Reset link if `false'.
187 int qed_mcp_set_link(struct qed_hwfn
*p_hwfn
,
188 struct qed_ptt
*p_ptt
,
192 * @brief Get the management firmware version value
196 * @param p_mfw_ver - mfw version value
197 * @param p_running_bundle_id - image id in nvram; Optional.
199 * @return int - 0 - operation was successful.
201 int qed_mcp_get_mfw_ver(struct qed_hwfn
*p_hwfn
,
202 struct qed_ptt
*p_ptt
,
203 u32
*p_mfw_ver
, u32
*p_running_bundle_id
);
206 * @brief Get media type value of the port.
208 * @param cdev - qed dev pointer
209 * @param mfw_ver - media type value
212 * 0 - Operation was successul.
213 * -EBUSY - Operation failed
215 int qed_mcp_get_media_type(struct qed_dev
*cdev
,
219 * @brief General function for sending commands to the MCP
220 * mailbox. It acquire mutex lock for the entire
221 * operation, from sending the request until the MCP
222 * response. Waiting for MCP response will be checked up
223 * to 5 seconds every 5ms.
225 * @param p_hwfn - hw function
226 * @param p_ptt - PTT required for register access
227 * @param cmd - command to be sent to the MCP.
228 * @param param - Optional param
229 * @param o_mcp_resp - The MCP response code (exclude sequence).
230 * @param o_mcp_param- Optional parameter provided by the MCP
232 * @return int - 0 - operation
235 int qed_mcp_cmd(struct qed_hwfn
*p_hwfn
,
236 struct qed_ptt
*p_ptt
,
243 * @brief - drains the nig, allowing completion to pass in case of pauses.
244 * (Should be called only from sleepable context)
249 int qed_mcp_drain(struct qed_hwfn
*p_hwfn
,
250 struct qed_ptt
*p_ptt
);
253 * @brief Get the flash size value
257 * @param p_flash_size - flash size in bytes to be filled.
259 * @return int - 0 - operation was successul.
261 int qed_mcp_get_flash_size(struct qed_hwfn
*p_hwfn
,
262 struct qed_ptt
*p_ptt
,
266 * @brief Send driver version to MFW
270 * @param version - Version value
271 * @param name - Protocol driver name
273 * @return int - 0 - operation was successul.
276 qed_mcp_send_drv_version(struct qed_hwfn
*p_hwfn
,
277 struct qed_ptt
*p_ptt
,
278 struct qed_mcp_drv_version
*p_ver
);
281 * @brief Set LED status
285 * @param mode - LED mode
287 * @return int - 0 - operation was successful.
289 int qed_mcp_set_led(struct qed_hwfn
*p_hwfn
,
290 struct qed_ptt
*p_ptt
,
291 enum qed_led_mode mode
);
294 * @brief Bist register test
296 * @param p_hwfn - hw function
297 * @param p_ptt - PTT required for register access
299 * @return int - 0 - operation was successful.
301 int qed_mcp_bist_register_test(struct qed_hwfn
*p_hwfn
,
302 struct qed_ptt
*p_ptt
);
305 * @brief Bist clock test
307 * @param p_hwfn - hw function
308 * @param p_ptt - PTT required for register access
310 * @return int - 0 - operation was successful.
312 int qed_mcp_bist_clock_test(struct qed_hwfn
*p_hwfn
,
313 struct qed_ptt
*p_ptt
);
315 /* Using hwfn number (and not pf_num) is required since in CMT mode,
316 * same pf_num may be used by two different hwfn
317 * TODO - this shouldn't really be in .h file, but until all fields
318 * required during hw-init will be placed in their correct place in shmem
319 * we need it in qed_dev.c [for readin the nvram reflection in shmem].
321 #define MCP_PF_ID_BY_REL(p_hwfn, rel_pfid) (QED_IS_BB((p_hwfn)->cdev) ? \
323 ((p_hwfn)->abs_pf_id & 1) << 3) : \
325 #define MCP_PF_ID(p_hwfn) MCP_PF_ID_BY_REL(p_hwfn, (p_hwfn)->rel_pf_id)
327 /* TODO - this is only correct as long as only BB is supported, and
328 * no port-swapping is implemented; Afterwards we'll need to fix it.
330 #define MFW_PORT(_p_hwfn) ((_p_hwfn)->abs_pf_id % \
331 ((_p_hwfn)->cdev->num_ports_in_engines * 2))
332 struct qed_mcp_info
{
334 bool block_mb_sending
;
341 struct qed_mcp_link_params link_input
;
342 struct qed_mcp_link_state link_output
;
343 struct qed_mcp_link_capabilities link_capabilities
;
344 struct qed_mcp_function_info func_info
;
351 struct qed_mcp_mb_params
{
354 union drv_union_data
*p_data_src
;
355 union drv_union_data
*p_data_dst
;
361 * @brief Initialize the interface with the MCP
363 * @param p_hwfn - HW func
364 * @param p_ptt - PTT required for register access
368 int qed_mcp_cmd_init(struct qed_hwfn
*p_hwfn
,
369 struct qed_ptt
*p_ptt
);
372 * @brief Initialize the port interface with the MCP
376 * Can only be called after `num_ports_in_engines' is set
378 void qed_mcp_cmd_port_init(struct qed_hwfn
*p_hwfn
,
379 struct qed_ptt
*p_ptt
);
381 * @brief Releases resources allocated during the init process.
383 * @param p_hwfn - HW func
384 * @param p_ptt - PTT required for register access
389 int qed_mcp_free(struct qed_hwfn
*p_hwfn
);
392 * @brief This function is called from the DPC context. After
393 * pointing PTT to the mfw mb, check for events sent by the MCP
394 * to the driver and ack them. In case a critical event
395 * detected, it will be handled here, otherwise the work will be
396 * queued to a sleepable work-queue.
398 * @param p_hwfn - HW function
399 * @param p_ptt - PTT required for register access
400 * @return int - 0 - operation
403 int qed_mcp_handle_events(struct qed_hwfn
*p_hwfn
,
404 struct qed_ptt
*p_ptt
);
407 * @brief Sends a LOAD_REQ to the MFW, and in case operation
408 * succeed, returns whether this PF is the first on the
409 * chip/engine/port or function. This function should be
410 * called when driver is ready to accept MFW events after
411 * Storms initializations are done.
413 * @param p_hwfn - hw function
414 * @param p_ptt - PTT required for register access
415 * @param p_load_code - The MCP response param containing one
417 * FW_MSG_CODE_DRV_LOAD_ENGINE
418 * FW_MSG_CODE_DRV_LOAD_PORT
419 * FW_MSG_CODE_DRV_LOAD_FUNCTION
421 * 0 - Operation was successul.
422 * -EBUSY - Operation failed
424 int qed_mcp_load_req(struct qed_hwfn
*p_hwfn
,
425 struct qed_ptt
*p_ptt
,
429 * @brief Read the MFW mailbox into Current buffer.
434 void qed_mcp_read_mb(struct qed_hwfn
*p_hwfn
,
435 struct qed_ptt
*p_ptt
);
438 * @brief Ack to mfw that driver finished FLR process for VFs
442 * @param vfs_to_ack - bit mask of all engine VFs for which the PF acks.
444 * @param return int - 0 upon success.
446 int qed_mcp_ack_vf_flr(struct qed_hwfn
*p_hwfn
,
447 struct qed_ptt
*p_ptt
, u32
*vfs_to_ack
);
450 * @brief - calls during init to read shmem of all function-related info.
454 * @param return 0 upon success.
456 int qed_mcp_fill_shmem_func_info(struct qed_hwfn
*p_hwfn
,
457 struct qed_ptt
*p_ptt
);
460 * @brief - Reset the MCP using mailbox command.
465 * @param return 0 upon success.
467 int qed_mcp_reset(struct qed_hwfn
*p_hwfn
,
468 struct qed_ptt
*p_ptt
);
471 * @brief indicates whether the MFW objects [under mcp_info] are accessible
475 * @return true iff MFW is running and mcp_info is initialized
477 bool qed_mcp_is_init(struct qed_hwfn
*p_hwfn
);
480 * @brief request MFW to configure MSI-X for a VF
484 * @param vf_id - absolute inside engine
485 * @param num_sbs - number of entries to request
489 int qed_mcp_config_vf_msix(struct qed_hwfn
*p_hwfn
,
490 struct qed_ptt
*p_ptt
, u8 vf_id
, u8 num
);
492 int qed_configure_pf_min_bandwidth(struct qed_dev
*cdev
, u8 min_bw
);
493 int qed_configure_pf_max_bandwidth(struct qed_dev
*cdev
, u8 max_bw
);
494 int __qed_configure_pf_max_bandwidth(struct qed_hwfn
*p_hwfn
,
495 struct qed_ptt
*p_ptt
,
496 struct qed_mcp_link_state
*p_link
,
498 int __qed_configure_pf_min_bandwidth(struct qed_hwfn
*p_hwfn
,
499 struct qed_ptt
*p_ptt
,
500 struct qed_mcp_link_state
*p_link
,