diff options
Diffstat (limited to 'drivers/net/ethernet/microsoft/mana/hw_channel.h')
-rw-r--r-- | drivers/net/ethernet/microsoft/mana/hw_channel.h | 195 |
1 files changed, 0 insertions, 195 deletions
diff --git a/drivers/net/ethernet/microsoft/mana/hw_channel.h b/drivers/net/ethernet/microsoft/mana/hw_channel.h deleted file mode 100644 index 6a757a6e2732..000000000000 --- a/drivers/net/ethernet/microsoft/mana/hw_channel.h +++ /dev/null @@ -1,195 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ -/* Copyright (c) 2021, Microsoft Corporation. */ - -#ifndef _HW_CHANNEL_H -#define _HW_CHANNEL_H - -#define DEFAULT_LOG2_THROTTLING_FOR_ERROR_EQ 4 - -#define HW_CHANNEL_MAX_REQUEST_SIZE 0x1000 -#define HW_CHANNEL_MAX_RESPONSE_SIZE 0x1000 - -#define HW_CHANNEL_VF_BOOTSTRAP_QUEUE_DEPTH 1 - -#define HWC_INIT_DATA_CQID 1 -#define HWC_INIT_DATA_RQID 2 -#define HWC_INIT_DATA_SQID 3 -#define HWC_INIT_DATA_QUEUE_DEPTH 4 -#define HWC_INIT_DATA_MAX_REQUEST 5 -#define HWC_INIT_DATA_MAX_RESPONSE 6 -#define HWC_INIT_DATA_MAX_NUM_CQS 7 -#define HWC_INIT_DATA_PDID 8 -#define HWC_INIT_DATA_GPA_MKEY 9 -#define HWC_INIT_DATA_PF_DEST_RQ_ID 10 -#define HWC_INIT_DATA_PF_DEST_CQ_ID 11 - -/* Structures labeled with "HW DATA" are exchanged with the hardware. All of - * them are naturally aligned and hence don't need __packed. - */ - -union hwc_init_eq_id_db { - u32 as_uint32; - - struct { - u32 eq_id : 16; - u32 doorbell : 16; - }; -}; /* HW DATA */ - -union hwc_init_type_data { - u32 as_uint32; - - struct { - u32 value : 24; - u32 type : 8; - }; -}; /* HW DATA */ - -struct hwc_rx_oob { - u32 type : 6; - u32 eom : 1; - u32 som : 1; - u32 vendor_err : 8; - u32 reserved1 : 16; - - u32 src_virt_wq : 24; - u32 src_vfid : 8; - - u32 reserved2; - - union { - u32 wqe_addr_low; - u32 wqe_offset; - }; - - u32 wqe_addr_high; - - u32 client_data_unit : 14; - u32 reserved3 : 18; - - u32 tx_oob_data_size; - - u32 chunk_offset : 21; - u32 reserved4 : 11; -}; /* HW DATA */ - -struct hwc_tx_oob { - u32 reserved1; - - u32 reserved2; - - u32 vrq_id : 24; - u32 dest_vfid : 8; - - u32 vrcq_id : 24; - u32 reserved3 : 8; - - u32 vscq_id : 24; - u32 loopback : 1; - u32 lso_override: 1; - u32 dest_pf : 1; - u32 reserved4 : 5; - - u32 vsq_id : 24; - u32 reserved5 : 8; -}; /* HW DATA */ - -struct hwc_work_request { - void *buf_va; - void *buf_sge_addr; - u32 buf_len; - u32 msg_size; - - struct gdma_wqe_request wqe_req; - struct hwc_tx_oob tx_oob; - - struct gdma_sge sge; -}; - -/* hwc_dma_buf represents the array of in-flight WQEs. - * mem_info as know as the GDMA mapped memory is partitioned and used by - * in-flight WQEs. - * The number of WQEs is determined by the number of in-flight messages. - */ -struct hwc_dma_buf { - struct gdma_mem_info mem_info; - - u32 gpa_mkey; - - u32 num_reqs; - struct hwc_work_request reqs[]; -}; - -typedef void hwc_rx_event_handler_t(void *ctx, u32 gdma_rxq_id, - const struct hwc_rx_oob *rx_oob); - -typedef void hwc_tx_event_handler_t(void *ctx, u32 gdma_txq_id, - const struct hwc_rx_oob *rx_oob); - -struct hwc_cq { - struct hw_channel_context *hwc; - - struct gdma_queue *gdma_cq; - struct gdma_queue *gdma_eq; - struct gdma_comp *comp_buf; - u16 queue_depth; - - hwc_rx_event_handler_t *rx_event_handler; - void *rx_event_ctx; - - hwc_tx_event_handler_t *tx_event_handler; - void *tx_event_ctx; -}; - -struct hwc_wq { - struct hw_channel_context *hwc; - - struct gdma_queue *gdma_wq; - struct hwc_dma_buf *msg_buf; - u16 queue_depth; - - struct hwc_cq *hwc_cq; -}; - -struct hwc_caller_ctx { - struct completion comp_event; - void *output_buf; - u32 output_buflen; - - u32 error; /* Linux error code */ - u32 status_code; -}; - -struct hw_channel_context { - struct gdma_dev *gdma_dev; - struct device *dev; - - u16 num_inflight_msg; - u32 max_req_msg_size; - - u16 hwc_init_q_depth_max; - u32 hwc_init_max_req_msg_size; - u32 hwc_init_max_resp_msg_size; - - struct completion hwc_init_eqe_comp; - - struct hwc_wq *rxq; - struct hwc_wq *txq; - struct hwc_cq *cq; - - struct semaphore sema; - struct gdma_resource inflight_msg_res; - - u32 pf_dest_vrq_id; - u32 pf_dest_vrcq_id; - - struct hwc_caller_ctx *caller_ctx; -}; - -int mana_hwc_create_channel(struct gdma_context *gc); -void mana_hwc_destroy_channel(struct gdma_context *gc); - -int mana_hwc_send_request(struct hw_channel_context *hwc, u32 req_len, - const void *req, u32 resp_len, void *resp); - -#endif /* _HW_CHANNEL_H */ |