Imported Upstream version 16.07-rc1
[deb_dpdk.git] / drivers / net / qede / base / ecore_mcp.h
diff --git a/drivers/net/qede/base/ecore_mcp.h b/drivers/net/qede/base/ecore_mcp.h
new file mode 100644 (file)
index 0000000..448c30b
--- /dev/null
@@ -0,0 +1,304 @@
+/*
+ * Copyright (c) 2016 QLogic Corporation.
+ * All rights reserved.
+ * www.qlogic.com
+ *
+ * See LICENSE.qede_pmd for copyright and licensing details.
+ */
+
+#ifndef __ECORE_MCP_H__
+#define __ECORE_MCP_H__
+
+#include "bcm_osal.h"
+#include "mcp_public.h"
+#include "ecore_mcp_api.h"
+
+/* 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 ecore_dev.c [for readin the nvram reflection in shmem].
+ */
+#define MCP_PF_ID_BY_REL(p_hwfn, rel_pfid) (ECORE_IS_BB((p_hwfn)->p_dev) ? \
+                                           ((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)->p_dev->num_ports_in_engines * 2))
+struct ecore_mcp_info {
+       osal_spinlock_t lock;   /* Spinlock used for accessing MCP mailbox */
+       u32 public_base;        /* Address of the MCP public area */
+       u32 drv_mb_addr;        /* Address of the driver mailbox */
+       u32 mfw_mb_addr;        /* Address of the MFW mailbox */
+       u32 port_addr;          /* Address of the port configuration (link) */
+       u16 drv_mb_seq;         /* Current driver mailbox sequence */
+       u16 drv_pulse_seq;      /* Current driver pulse sequence */
+       struct ecore_mcp_link_params link_input;
+       struct ecore_mcp_link_state link_output;
+       struct ecore_mcp_link_capabilities link_capabilities;
+       struct ecore_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 enum _ecore_status_t
+ */
+enum _ecore_status_t ecore_mcp_cmd_init(struct ecore_hwfn *p_hwfn,
+                                       struct ecore_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 ecore_mcp_cmd_port_init(struct ecore_hwfn *p_hwfn,
+                            struct ecore_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 enum _ecore_status_t
+ */
+
+enum _ecore_status_t ecore_mcp_free(struct ecore_hwfn *p_hwfn);
+
+/**
+ * @brief This function is called from the DPC context. After
+ * pointing PTT to the mfw mb, check for events sent by the MCP
+ * to the driver and ack them. In case a critical event
+ * detected, it will be handled here, otherwise the work will be
+ * queued to a sleepable work-queue.
+ *
+ * @param p_hwfn - HW function
+ * @param p_ptt - PTT required for register access
+ * @return enum _ecore_status_t - ECORE_SUCCESS - operation
+ * was successul.
+ */
+enum _ecore_status_t ecore_mcp_handle_events(struct ecore_hwfn *p_hwfn,
+                                            struct ecore_ptt *p_ptt);
+
+/**
+ * @brief When MFW doesn't get driver pulse for couple of seconds, at some
+ * threshold before timeout expires, it will generate interrupt
+ * through a dedicated status block (DPSB - Driver Pulse Status
+ * Block), which the driver should respond immediately, by
+ * providing keepalive indication after setting the PTT to the
+ * driver-MFW mailbox. This function is called directly from the
+ * DPC upon receiving the DPSB attention.
+ *
+ * @param p_hwfn - hw function
+ * @param p_ptt - PTT required for register access
+ * @return enum _ecore_status_t - ECORE_SUCCESS - operation
+ * was successul.
+ */
+enum _ecore_status_t ecore_issue_pulse(struct ecore_hwfn *p_hwfn,
+                                      struct ecore_ptt *p_ptt);
+
+/**
+ * @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 enum _ecore_status_t -
+ *      ECORE_SUCCESS - Operation was successul.
+ *      ECORE_BUSY - Operation failed
+ */
+enum _ecore_status_t ecore_mcp_load_req(struct ecore_hwfn *p_hwfn,
+                                       struct ecore_ptt *p_ptt,
+                                       u32 *p_load_code);
+
+/**
+ * @brief Read the MFW mailbox into Current buffer.
+ *
+ * @param p_hwfn
+ * @param p_ptt
+ */
+void ecore_mcp_read_mb(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt);
+
+/**
+ * @brief Ack to mfw that driver finished FLR process for VFs
+ *
+ * @param p_hwfn
+ * @param p_ptt
+ * @param vfs_to_ack - bit mask of all engine VFs for which the PF acks.
+ *
+ * @param return enum _ecore_status_t - ECORE_SUCCESS upon success.
+ */
+enum _ecore_status_t ecore_mcp_ack_vf_flr(struct ecore_hwfn *p_hwfn,
+                                         struct ecore_ptt *p_ptt,
+                                         u32 *vfs_to_ack);
+
+/**
+ * @brief - calls during init to read shmem of all function-related info.
+ *
+ * @param p_hwfn
+ *
+ * @param return ECORE_SUCCESS upon success.
+ */
+enum _ecore_status_t ecore_mcp_fill_shmem_func_info(struct ecore_hwfn *p_hwfn,
+                                                   struct ecore_ptt *p_ptt);
+
+/**
+ * @brief - Reset the MCP using mailbox command.
+ *
+ * @param p_hwfn
+ * @param p_ptt
+ *
+ * @param return ECORE_SUCCESS upon success.
+ */
+enum _ecore_status_t ecore_mcp_reset(struct ecore_hwfn *p_hwfn,
+                                    struct ecore_ptt *p_ptt);
+
+/**
+ * @brief - Sets the union data in the MCP mailbox and sends a mailbox command.
+ *
+ * @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 p_union_data - pointer to a drv_union_data
+ * @param o_mcp_resp   - the MCP response code (exclude sequence)
+ * @param o_mcp_param  - optional parameter provided by the MCP response
+ *
+ * @return enum _ecore_status_t -
+ *      ECORE_SUCCESS - operation was successful
+ *      ECORE_BUSY    - operation failed
+ */
+enum _ecore_status_t ecore_mcp_cmd_and_union(struct ecore_hwfn *p_hwfn,
+                                            struct ecore_ptt *p_ptt,
+                                            u32 cmd, u32 param,
+                                            union drv_union_data *p_union_data,
+                                            u32 *o_mcp_resp,
+                                            u32 *o_mcp_param);
+
+/**
+ * @brief - Sends an NVM write command request to the MFW with
+ *          payload.
+ *
+ * @param p_hwfn
+ * @param p_ptt
+ * @param cmd - Command: Either DRV_MSG_CODE_NVM_WRITE_NVRAM or
+ *            DRV_MSG_CODE_NVM_PUT_FILE_DATA
+ * @param param - [0:23] - Offset [24:31] - Size
+ * @param o_mcp_resp - MCP response
+ * @param o_mcp_param - MCP response param
+ * @param i_txn_size -  Buffer size
+ * @param i_buf - Pointer to the buffer
+ *
+ * @param return ECORE_SUCCESS upon success.
+ */
+enum _ecore_status_t ecore_mcp_nvm_wr_cmd(struct ecore_hwfn *p_hwfn,
+                                         struct ecore_ptt *p_ptt,
+                                         u32 cmd,
+                                         u32 param,
+                                         u32 *o_mcp_resp,
+                                         u32 *o_mcp_param,
+                                         u32 i_txn_size, u32 *i_buf);
+
+/**
+ * @brief - Sends an NVM read command request to the MFW to get
+ *        a buffer.
+ *
+ * @param p_hwfn
+ * @param p_ptt
+ * @param cmd - Command: DRV_MSG_CODE_NVM_GET_FILE_DATA or
+ *            DRV_MSG_CODE_NVM_READ_NVRAM commands
+ * @param param - [0:23] - Offset [24:31] - Size
+ * @param o_mcp_resp - MCP response
+ * @param o_mcp_param - MCP response param
+ * @param o_txn_size -  Buffer size output
+ * @param o_buf - Pointer to the buffer returned by the MFW.
+ *
+ * @param return ECORE_SUCCESS upon success.
+ */
+enum _ecore_status_t ecore_mcp_nvm_rd_cmd(struct ecore_hwfn *p_hwfn,
+                                         struct ecore_ptt *p_ptt,
+                                         u32 cmd,
+                                         u32 param,
+                                         u32 *o_mcp_resp,
+                                         u32 *o_mcp_param,
+                                         u32 *o_txn_size, u32 *o_buf);
+
+/**
+ * @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 ecore_mcp_is_init(struct ecore_hwfn *p_hwfn);
+
+/**
+ * @brief request MFW to configure MSI-X for a VF
+ *
+ * @param p_hwfn
+ * @param p_ptt
+ * @param vf_id - absolute inside engine
+ * @param num_sbs - number of entries to request
+ *
+ * @return enum _ecore_status_t
+ */
+enum _ecore_status_t ecore_mcp_config_vf_msix(struct ecore_hwfn *p_hwfn,
+                                             struct ecore_ptt *p_ptt,
+                                             u8 vf_id, u8 num);
+
+/**
+ * @brief - Halt the MCP.
+ *
+ * @param p_hwfn
+ * @param p_ptt
+ *
+ * @param return ECORE_SUCCESS upon success.
+ */
+enum _ecore_status_t ecore_mcp_halt(struct ecore_hwfn *p_hwfn,
+                                   struct ecore_ptt *p_ptt);
+
+/**
+ * @brief - Wake up the MCP.
+ *
+ * @param p_hwfn
+ * @param p_ptt
+ *
+ * @param return ECORE_SUCCESS upon success.
+ */
+enum _ecore_status_t ecore_mcp_resume(struct ecore_hwfn *p_hwfn,
+                                     struct ecore_ptt *p_ptt);
+int __ecore_configure_pf_max_bandwidth(struct ecore_hwfn *p_hwfn,
+                                      struct ecore_ptt *p_ptt,
+                                      struct ecore_mcp_link_state *p_link,
+                                      u8 max_bw);
+int __ecore_configure_pf_min_bandwidth(struct ecore_hwfn *p_hwfn,
+                                      struct ecore_ptt *p_ptt,
+                                      struct ecore_mcp_link_state *p_link,
+                                      u8 min_bw);
+enum _ecore_status_t ecore_mcp_mask_parities(struct ecore_hwfn *p_hwfn,
+                                            struct ecore_ptt *p_ptt,
+                                            u32 mask_parities);
+#endif /* __ECORE_MCP_H__ */