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nvmf_fc_hwqp_handle_request() -->cmd_iu = buffer->virt; /* struct spdk_nvmf_request req所用内存已经在struct spdk_nvmf_fc_request结构体中申请*/ -->fc_req = nvmf_fc_hwqp_alloc_fc_request(hwqp); -->fc_req->req.qpair = &fc_conn->qpair; /*qpair的id为0时表示Admin队列*/ -->nvmf_fc_request_execute(fc_req) /* 接收数据和处理纯命令分开 */ -->nvmf_fc_recv_data(fc_req); /* 接收数据 */ -->spdk_nvmf_request_exec(&fc_req->req); /* 处理命令请求 */ |
void spdk_nvmf_request_exec(struct spdk_nvmf_request *req) |
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spdk_nvmf_rdma_request_process() -->spdk_nvmf_request_exec(&rdma_req->req); |
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tcp_req = spdk_nvmf_tcp_req_get(tqpair); spdk_nvmf_tcp_req_process() -->spdk_nvmf_request_exec(&tcp_req->req); |
void
spdk_nvmf_request_exec(struct spdk_nvmf_request *req)
{
//......
if (spdk_unlikely(req->cmd->nvmf_cmd.opcode == SPDK_NVME_OPC_FABRIC)) {
status = spdk_nvmf_ctrlr_process_fabrics_cmd(req);
} else if (spdk_unlikely(spdk_nvmf_qpair_is_admin_queue(qpair))) {
status = spdk_nvmf_ctrlr_process_admin_cmd(req);
} else {
status = spdk_nvmf_ctrlr_process_io_cmd(req);
}
if (status == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
spdk_nvmf_request_complete(req);
}
}
原文：https://www.cnblogs.com/JamesLi/p/11525931.html