diff options
Diffstat (limited to 'drivers/infiniband/hw/efa/efa_admin_cmds_defs.h')
| -rw-r--r-- | drivers/infiniband/hw/efa/efa_admin_cmds_defs.h | 66 |
1 files changed, 50 insertions, 16 deletions
diff --git a/drivers/infiniband/hw/efa/efa_admin_cmds_defs.h b/drivers/infiniband/hw/efa/efa_admin_cmds_defs.h index 2be0469d545f..74b787a90660 100644 --- a/drivers/infiniband/hw/efa/efa_admin_cmds_defs.h +++ b/drivers/infiniband/hw/efa/efa_admin_cmds_defs.h @@ -160,10 +160,16 @@ struct efa_admin_create_qp_resp { /* Common Admin Queue completion descriptor */ struct efa_admin_acq_common_desc acq_common_desc; - /* Opaque handle to be used for consequent operations on the QP */ + /* + * Opaque handle to be used for consequent admin operations on the + * QP + */ u32 qp_handle; - /* QP number in the given EFA virtual device */ + /* + * QP number in the given EFA virtual device. Least-significant bits + * (as needed according to max_qp) carry unique QP ID + */ u16 qp_num; /* MBZ */ @@ -286,6 +292,7 @@ struct efa_admin_create_ah_cmd { /* PD number */ u16 pd; + /* MBZ */ u16 reserved; }; @@ -296,6 +303,7 @@ struct efa_admin_create_ah_resp { /* Target interface address handle (opaque) */ u16 ah; + /* MBZ */ u16 reserved; }; @@ -362,12 +370,17 @@ struct efa_admin_reg_mr_cmd { /* * permissions - * 0 : local_write_enable - Write permissions: value - * of 1 needed for RQ buffers and for RDMA write - * 7:1 : reserved1 - remote access flags, etc + * 0 : local_write_enable - Local write permissions: + * must be set for RQ buffers and buffers posted for + * RDMA Read requests + * 1 : reserved1 - MBZ + * 2 : remote_read_enable - Remote read permissions: + * must be set to enable RDMA read from the region + * 7:3 : reserved2 - MBZ */ u8 permissions; + /* MBZ */ u16 reserved16_w5; /* number of pages in PBL (redundant, could be calculated) */ @@ -415,20 +428,20 @@ struct efa_admin_create_cq_cmd { struct efa_admin_aq_common_desc aq_common_desc; /* - * 4:0 : reserved5 + * 4:0 : reserved5 - MBZ * 5 : interrupt_mode_enabled - if set, cq operates * in interrupt mode (i.e. CQ events and MSI-X are * generated), otherwise - polling * 6 : virt - If set, ring base address is virtual * (IOVA returned by MR registration) - * 7 : reserved6 + * 7 : reserved6 - MBZ */ u8 cq_caps_1; /* * 4:0 : cq_entry_size_words - size of CQ entry in * 32-bit words, valid values: 4, 8. - * 7:5 : reserved7 + * 7:5 : reserved7 - MBZ */ u8 cq_caps_2; @@ -474,6 +487,7 @@ struct efa_admin_destroy_cq_cmd { u16 cq_idx; + /* MBZ */ u16 reserved1; }; @@ -526,7 +540,7 @@ struct efa_admin_get_set_feature_common_desc { /* * 1:0 : select - 0x1 - current value; 0x3 - default * value - * 7:3 : reserved3 + * 7:3 : reserved3 - MBZ */ u8 flags; @@ -553,38 +567,49 @@ struct efa_admin_feature_device_attr_desc { /* Bar used for SQ and RQ doorbells */ u16 db_bar; - /* Indicates how many bits are used physical address access */ + /* Indicates how many bits are used on physical address access */ u8 phys_addr_width; - /* Indicates how many bits are used virtual address access */ + /* Indicates how many bits are used on virtual address access */ u8 virt_addr_width; + + /* + * 0 : rdma_read - If set, RDMA Read is supported on + * TX queues + * 31:1 : reserved - MBZ + */ + u32 device_caps; + + /* Max RDMA transfer size in bytes */ + u32 max_rdma_size; }; struct efa_admin_feature_queue_attr_desc { /* The maximum number of queue pairs supported */ u32 max_qp; + /* Maximum number of WQEs per Send Queue */ u32 max_sq_depth; - /* max send wr used in inline-buf */ + /* Maximum size of data that can be sent inline in a Send WQE */ u32 inline_buf_size; + /* Maximum number of buffer descriptors per Recv Queue */ u32 max_rq_depth; /* The maximum number of completion queues supported per VF */ u32 max_cq; + /* Maximum number of CQEs per Completion Queue */ u32 max_cq_depth; /* Number of sub-CQs to be created for each CQ */ u16 sub_cqs_per_cq; + /* MBZ */ u16 reserved; - /* - * Maximum number of SGEs (buffs) allowed for a single send work - * queue element (WQE) - */ + /* Maximum number of SGEs (buffers) allowed for a single send WQE */ u16 max_wr_send_sges; /* Maximum number of SGEs allowed for a single recv WQE */ @@ -604,6 +629,9 @@ struct efa_admin_feature_queue_attr_desc { /* The maximum size of LLQ in bytes */ u32 max_llq_size; + + /* Maximum number of SGEs for a single RDMA read WQE */ + u16 max_wr_rdma_sges; }; struct efa_admin_feature_aenq_desc { @@ -618,6 +646,7 @@ struct efa_admin_feature_network_attr_desc { /* Raw address data in network byte order */ u8 addr[16]; + /* max packet payload size in bytes */ u32 mtu; }; @@ -780,6 +809,8 @@ struct efa_admin_mmio_req_read_less_resp { #define EFA_ADMIN_REG_MR_CMD_MEM_ADDR_PHY_MODE_EN_SHIFT 7 #define EFA_ADMIN_REG_MR_CMD_MEM_ADDR_PHY_MODE_EN_MASK BIT(7) #define EFA_ADMIN_REG_MR_CMD_LOCAL_WRITE_ENABLE_MASK BIT(0) +#define EFA_ADMIN_REG_MR_CMD_REMOTE_READ_ENABLE_SHIFT 2 +#define EFA_ADMIN_REG_MR_CMD_REMOTE_READ_ENABLE_MASK BIT(2) /* create_cq_cmd */ #define EFA_ADMIN_CREATE_CQ_CMD_INTERRUPT_MODE_ENABLED_SHIFT 5 @@ -791,4 +822,7 @@ struct efa_admin_mmio_req_read_less_resp { /* get_set_feature_common_desc */ #define EFA_ADMIN_GET_SET_FEATURE_COMMON_DESC_SELECT_MASK GENMASK(1, 0) +/* feature_device_attr_desc */ +#define EFA_ADMIN_FEATURE_DEVICE_ATTR_DESC_RDMA_READ_MASK BIT(0) + #endif /* _EFA_ADMIN_CMDS_H_ */ |
