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