diff options
Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_mcp.h')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qed/qed_mcp.h | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.h b/drivers/net/ethernet/qlogic/qed/qed_mcp.h new file mode 100644 index 000000000000..230c2550dc89 --- /dev/null +++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.h @@ -0,0 +1,232 @@ +/* QLogic qed NIC Driver + * Copyright (c) 2015 QLogic Corporation + * + * This software is available under the terms of the GNU General Public License + * (GPL) Version 2, available from the file COPYING in the main directory of + * this source tree. + */ + +#ifndef _QED_MCP_H +#define _QED_MCP_H + +#include <linux/types.h> +#include <linux/delay.h> +#include <linux/mutex.h> +#include <linux/slab.h> +#include "qed_hsi.h" + +struct qed_mcp_function_info { + u8 pause_on_host; + + enum qed_pci_personality protocol; + + u8 bandwidth_min; + u8 bandwidth_max; + + u8 mac[ETH_ALEN]; + + u64 wwn_port; + u64 wwn_node; + +#define QED_MCP_VLAN_UNSET (0xffff) + u16 ovlan; +}; + +struct qed_mcp_nvm_common { + u32 offset; + u32 param; + u32 resp; + u32 cmd; +}; + +struct qed_mcp_drv_version { + u32 version; + u8 name[MCP_DRV_VER_STR_SIZE - 4]; +}; + +/** + * @brief Get the management firmware version value + * + * @param cdev - qed dev pointer + * @param mfw_ver - mfw version value + * + * @return int - 0 - operation was successul. + */ +int qed_mcp_get_mfw_ver(struct qed_dev *cdev, + u32 *mfw_ver); + +/** + * @brief General function for sending commands to the MCP + * mailbox. It acquire mutex lock for the entire + * operation, from sending the request until the MCP + * response. Waiting for MCP response will be checked up + * to 5 seconds every 5ms. + * + * @param p_hwfn - hw function + * @param p_ptt - PTT required for register access + * @param cmd - command to be sent to the MCP. + * @param param - Optional param + * @param o_mcp_resp - The MCP response code (exclude sequence). + * @param o_mcp_param- Optional parameter provided by the MCP + * response + * @return int - 0 - operation + * was successul. + */ +int qed_mcp_cmd(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt, + u32 cmd, + u32 param, + u32 *o_mcp_resp, + u32 *o_mcp_param); + +/** + * @brief - drains the nig, allowing completion to pass in case of pauses. + * (Should be called only from sleepable context) + * + * @param p_hwfn + * @param p_ptt + */ +int qed_mcp_drain(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt); + +/** + * @brief Send driver version to MFW + * + * @param p_hwfn + * @param p_ptt + * @param version - Version value + * @param name - Protocol driver name + * + * @return int - 0 - operation was successul. + */ +int +qed_mcp_send_drv_version(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt, + struct qed_mcp_drv_version *p_ver); + +/* Using hwfn number (and not pf_num) is required since in CMT mode, + * same pf_num may be used by two different hwfn + * TODO - this shouldn't really be in .h file, but until all fields + * required during hw-init will be placed in their correct place in shmem + * we need it in qed_dev.c [for readin the nvram reflection in shmem]. + */ +#define MCP_PF_ID_BY_REL(p_hwfn, rel_pfid) (QED_IS_BB((p_hwfn)->cdev) ? \ + ((rel_pfid) | \ + ((p_hwfn)->abs_pf_id & 1) << 3) : \ + rel_pfid) +#define MCP_PF_ID(p_hwfn) MCP_PF_ID_BY_REL(p_hwfn, (p_hwfn)->rel_pf_id) + +/* TODO - this is only correct as long as only BB is supported, and + * no port-swapping is implemented; Afterwards we'll need to fix it. + */ +#define MFW_PORT(_p_hwfn) ((_p_hwfn)->abs_pf_id % \ + ((_p_hwfn)->cdev->num_ports_in_engines * 2)) +struct qed_mcp_info { + struct mutex mutex; /* MCP access lock */ + u32 public_base; + u32 drv_mb_addr; + u32 mfw_mb_addr; + u32 port_addr; + u16 drv_mb_seq; + u16 drv_pulse_seq; + struct qed_mcp_function_info func_info; + + u8 *mfw_mb_cur; + u8 *mfw_mb_shadow; + u16 mfw_mb_length; + u16 mcp_hist; +}; + +/** + * @brief Initialize the interface with the MCP + * + * @param p_hwfn - HW func + * @param p_ptt - PTT required for register access + * + * @return int + */ +int qed_mcp_cmd_init(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt); + +/** + * @brief Initialize the port interface with the MCP + * + * @param p_hwfn + * @param p_ptt + * Can only be called after `num_ports_in_engines' is set + */ +void qed_mcp_cmd_port_init(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt); +/** + * @brief Releases resources allocated during the init process. + * + * @param p_hwfn - HW func + * @param p_ptt - PTT required for register access + * + * @return int + */ + +int qed_mcp_free(struct qed_hwfn *p_hwfn); + +/** + * @brief Sends a LOAD_REQ to the MFW, and in case operation + * succeed, returns whether this PF is the first on the + * chip/engine/port or function. This function should be + * called when driver is ready to accept MFW events after + * Storms initializations are done. + * + * @param p_hwfn - hw function + * @param p_ptt - PTT required for register access + * @param p_load_code - The MCP response param containing one + * of the following: + * FW_MSG_CODE_DRV_LOAD_ENGINE + * FW_MSG_CODE_DRV_LOAD_PORT + * FW_MSG_CODE_DRV_LOAD_FUNCTION + * @return int - + * 0 - Operation was successul. + * -EBUSY - Operation failed + */ +int qed_mcp_load_req(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt, + u32 *p_load_code); + +/** + * @brief Read the MFW mailbox into Current buffer. + * + * @param p_hwfn + * @param p_ptt + */ +void qed_mcp_read_mb(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt); + +/** + * @brief - calls during init to read shmem of all function-related info. + * + * @param p_hwfn + * + * @param return 0 upon success. + */ +int qed_mcp_fill_shmem_func_info(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt); + +/** + * @brief - Reset the MCP using mailbox command. + * + * @param p_hwfn + * @param p_ptt + * + * @param return 0 upon success. + */ +int qed_mcp_reset(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt); + +/** + * @brief indicates whether the MFW objects [under mcp_info] are accessible + * + * @param p_hwfn + * + * @return true iff MFW is running and mcp_info is initialized + */ +bool qed_mcp_is_init(struct qed_hwfn *p_hwfn); + +#endif |