1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 | /* 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 |