Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
VSR Burru | 258 | 95.20% | 4 | 66.67% |
Sathesh Edara | 12 | 4.43% | 1 | 16.67% |
Shinas Rasheed | 1 | 0.37% | 1 | 16.67% |
Total | 271 | 6 |
/* SPDX-License-Identifier: GPL-2.0 */ /* Marvell Octeon EP (EndPoint) Ethernet Driver * * Copyright (C) 2020 Marvell. * */ #ifndef __OCTEP_CTRL_MBOX_H__ #define __OCTEP_CTRL_MBOX_H__ /* barmem structure * |===========================================| * |Info (16 + 120 + 120 = 256 bytes) | * |-------------------------------------------| * |magic number (8 bytes) | * |bar memory size (4 bytes) | * |reserved (4 bytes) | * |-------------------------------------------| * |host version (8 bytes) | * | low 32 bits | * |host status (8 bytes) | * |host reserved (104 bytes) | * |-------------------------------------------| * |fw version's (8 bytes) | * | min=high 32 bits, max=low 32 bits | * |fw status (8 bytes) | * |fw reserved (104 bytes) | * |===========================================| * |Host to Fw Queue info (16 bytes) | * |-------------------------------------------| * |producer index (4 bytes) | * |consumer index (4 bytes) | * |max element size (4 bytes) | * |reserved (4 bytes) | * |===========================================| * |Fw to Host Queue info (16 bytes) | * |-------------------------------------------| * |producer index (4 bytes) | * |consumer index (4 bytes) | * |max element size (4 bytes) | * |reserved (4 bytes) | * |===========================================| * |Host to Fw Queue ((total size-288/2) bytes)| * |-------------------------------------------| * | | * |===========================================| * |===========================================| * |Fw to Host Queue ((total size-288/2) bytes)| * |-------------------------------------------| * | | * |===========================================| */ #define OCTEP_CTRL_MBOX_MAGIC_NUMBER 0xdeaddeadbeefbeefull /* Valid request message */ #define OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ BIT(0) /* Valid response message */ #define OCTEP_CTRL_MBOX_MSG_HDR_FLAG_RESP BIT(1) /* Valid notification, no response required */ #define OCTEP_CTRL_MBOX_MSG_HDR_FLAG_NOTIFY BIT(2) /* Valid custom message */ #define OCTEP_CTRL_MBOX_MSG_HDR_FLAG_CUSTOM BIT(3) #define OCTEP_CTRL_MBOX_MSG_DESC_MAX 4 enum octep_ctrl_mbox_status { OCTEP_CTRL_MBOX_STATUS_INVALID = 0, OCTEP_CTRL_MBOX_STATUS_INIT, OCTEP_CTRL_MBOX_STATUS_READY, OCTEP_CTRL_MBOX_STATUS_UNINIT }; /* mbox message */ union octep_ctrl_mbox_msg_hdr { u64 words[2]; struct { /* must be 0 */ u16 reserved1:15; /* vf_idx is valid if 1 */ u16 is_vf:1; /* sender vf index 0-(n-1), 0 if (is_vf==0) */ u16 vf_idx; /* total size of message excluding header */ u32 sz; /* OCTEP_CTRL_MBOX_MSG_HDR_FLAG_* */ u32 flags; /* identifier to match responses */ u16 msg_id; u16 reserved2; } s; }; /* mbox message buffer */ struct octep_ctrl_mbox_msg_buf { u32 reserved1; u16 reserved2; /* size of buffer */ u16 sz; /* pointer to message buffer */ void *msg; }; /* mbox message */ struct octep_ctrl_mbox_msg { /* mbox transaction header */ union octep_ctrl_mbox_msg_hdr hdr; /* number of sg buffer's */ int sg_num; /* message buffer's */ struct octep_ctrl_mbox_msg_buf sg_list[OCTEP_CTRL_MBOX_MSG_DESC_MAX]; }; /* Mbox queue */ struct octep_ctrl_mbox_q { /* size of queue buffer */ u32 sz; /* producer address in bar mem */ u8 __iomem *hw_prod; /* consumer address in bar mem */ u8 __iomem *hw_cons; /* q base address in bar mem */ u8 __iomem *hw_q; }; struct octep_ctrl_mbox { /* control plane version */ u64 version; /* size of bar memory */ u32 barmem_sz; /* pointer to BAR memory */ u8 __iomem *barmem; /* host-to-fw queue */ struct octep_ctrl_mbox_q h2fq; /* fw-to-host queue */ struct octep_ctrl_mbox_q f2hq; /* lock for h2fq */ struct mutex h2fq_lock; /* lock for f2hq */ struct mutex f2hq_lock; /* Min control plane version supported by firmware */ u32 min_fw_version; /* Max control plane version supported by firmware */ u32 max_fw_version; }; /* Initialize control mbox. * * @param mbox: non-null pointer to struct octep_ctrl_mbox. * * return value: 0 on success, -errno on failure. */ int octep_ctrl_mbox_init(struct octep_ctrl_mbox *mbox); /* Send mbox message. * * @param mbox: non-null pointer to struct octep_ctrl_mbox. * @param msg: non-null pointer to struct octep_ctrl_mbox_msg. * Caller should fill msg.sz and msg.desc.sz for each message. * * return value: 0 on success, -errno on failure. */ int octep_ctrl_mbox_send(struct octep_ctrl_mbox *mbox, struct octep_ctrl_mbox_msg *msg); /* Retrieve mbox message. * * @param mbox: non-null pointer to struct octep_ctrl_mbox. * @param msg: non-null pointer to struct octep_ctrl_mbox_msg. * Caller should fill msg.sz and msg.desc.sz for each message. * * return value: 0 on success, -errno on failure. */ int octep_ctrl_mbox_recv(struct octep_ctrl_mbox *mbox, struct octep_ctrl_mbox_msg *msg); /* Uninitialize control mbox. * * @param mbox: non-null pointer to struct octep_ctrl_mbox. * * return value: 0 on success, -errno on failure. */ int octep_ctrl_mbox_uninit(struct octep_ctrl_mbox *mbox); #endif /* __OCTEP_CTRL_MBOX_H__ */
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