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112 lines
3.1 KiB
112 lines
3.1 KiB
/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ |
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/* Copyright (C) 2018 Netronome Systems, Inc. */ |
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#ifndef __NFP_ABI__ |
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#define __NFP_ABI__ 1 |
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#include <linux/types.h> |
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#define NFP_MBOX_SYM_NAME "_abi_nfd_pf%u_mbox" |
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#define NFP_MBOX_SYM_MIN_SIZE 16 /* When no data needed */ |
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#define NFP_MBOX_CMD 0x00 |
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#define NFP_MBOX_RET 0x04 |
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#define NFP_MBOX_DATA_LEN 0x08 |
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#define NFP_MBOX_RESERVED 0x0c |
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#define NFP_MBOX_DATA 0x10 |
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/** |
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* enum nfp_mbox_cmd - PF mailbox commands |
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* |
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* @NFP_MBOX_NO_CMD: null command |
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* Used to indicate previous command has finished. |
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* |
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* @NFP_MBOX_POOL_GET: get shared buffer pool info/config |
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* Input - struct nfp_shared_buf_pool_id |
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* Output - struct nfp_shared_buf_pool_info_get |
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* |
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* @NFP_MBOX_POOL_SET: set shared buffer pool info/config |
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* Input - struct nfp_shared_buf_pool_info_set |
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* Output - None |
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* |
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* @NFP_MBOX_PCIE_ABM_ENABLE: enable PCIe-side advanced buffer management |
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* Enable advanced buffer management of the PCIe block. If ABM is disabled |
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* PCIe block maintains a very short queue of buffers and does tail drop. |
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* ABM allows more advanced buffering and priority control. |
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* Input - None |
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* Output - None |
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* |
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* @NFP_MBOX_PCIE_ABM_DISABLE: disable PCIe-side advanced buffer management |
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* Input - None |
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* Output - None |
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*/ |
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enum nfp_mbox_cmd { |
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NFP_MBOX_NO_CMD = 0x00, |
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NFP_MBOX_POOL_GET = 0x01, |
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NFP_MBOX_POOL_SET = 0x02, |
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NFP_MBOX_PCIE_ABM_ENABLE = 0x03, |
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NFP_MBOX_PCIE_ABM_DISABLE = 0x04, |
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}; |
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#define NFP_SHARED_BUF_COUNT_SYM_NAME "_abi_nfd_pf%u_sb_cnt" |
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#define NFP_SHARED_BUF_TABLE_SYM_NAME "_abi_nfd_pf%u_sb_tbl" |
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/** |
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* struct nfp_shared_buf - NFP shared buffer description |
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* @id: numerical user-visible id of the shared buffer |
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* @size: size in bytes of the buffer |
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* @ingress_pools_count: number of ingress pools |
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* @egress_pools_count: number of egress pools |
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* @ingress_tc_count: number of ingress trafic classes |
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* @egress_tc_count: number of egress trafic classes |
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* @pool_size_unit: pool size may be in credits, each credit is |
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* @pool_size_unit bytes |
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*/ |
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struct nfp_shared_buf { |
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__le32 id; |
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__le32 size; |
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__le16 ingress_pools_count; |
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__le16 egress_pools_count; |
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__le16 ingress_tc_count; |
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__le16 egress_tc_count; |
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__le32 pool_size_unit; |
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}; |
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/** |
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* struct nfp_shared_buf_pool_id - shared buffer pool identification |
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* @shared_buf: shared buffer id |
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* @pool: pool index |
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*/ |
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struct nfp_shared_buf_pool_id { |
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__le32 shared_buf; |
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__le32 pool; |
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}; |
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/** |
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* struct nfp_shared_buf_pool_info_get - struct devlink_sb_pool_info mirror |
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* @pool_type: one of enum devlink_sb_pool_type |
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* @size: pool size in units of SB's @pool_size_unit |
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* @threshold_type: one of enum devlink_sb_threshold_type |
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*/ |
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struct nfp_shared_buf_pool_info_get { |
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__le32 pool_type; |
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__le32 size; |
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__le32 threshold_type; |
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}; |
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/** |
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* struct nfp_shared_buf_pool_info_set - packed args of sb_pool_set |
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* @id: pool identification info |
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* @size: pool size in units of SB's @pool_size_unit |
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* @threshold_type: one of enum devlink_sb_threshold_type |
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*/ |
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struct nfp_shared_buf_pool_info_set { |
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struct nfp_shared_buf_pool_id id; |
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__le32 size; |
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__le32 threshold_type; |
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}; |
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#endif
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