当responder接收没有任何错误的返回ACK类型,同时bit 4:0用来表示credit count,credit count应该是用来进行反压等操作,暂未学习相关内容 RNR NAK类型 当responder中的资源处于忙的状态的时候,返回RNR NAK给requester,requester使用timer value延时,延时以后重新发送相同的命令给responder。 requester在延时期间,只能等待超时 r...
printf("ib devices count=%d\n",num_devices);CHECK(devs&&num_devices,"ibv_get_device_list fail...
Connection.ReceiveCreditMax: The local peer’s current maximum number of credits to grant to the remote peer. Connection.ReceiveCreditTarget: The remote peer’s most recent credits requested of the local peer. Connection.ReceiveCredits: The local peer’s current outstanding receive count. Connect...
One can amortize this credit write-back overhead over multiple Receive requests at the risk of starving the SEND endpoint for credit. We study this tradeoff experimentally in Section 7.1.1.Fig. 4. Endpoint implementation for the RDMA Send/Receive transport function and the Reliable Connection ...
By design, we store the absolute credit (that is, the number of Receive requests that have been posted in this connection so far) rather than the relative credit (that is, how many additional Receive requests have been posted) to keep the credit protocol stateless. To end the transmission,...
p=~shefty/librdmacm.git;a=commitdiff;h=4b5c1aa734e0e734fc2ba3cd41d0ddf02170af6d> > Credit: This issue was discovered by Florian Weimer of Red Hat > Product Security Team. Please use CVE-2012-4516 for this issue. > Issue #2 ibacm - DoS (ib_acm deamon crash) by joining responses ...
an InfiniBand communication manager assistant, performed management of reference counts for multicast connections. The default reference count value for multicast connection is set to zero and when the multicast connection got released, an attempt was made to free it, possibly resulting in ib_acm servi...
count=pf->num_rdma_msix->设置RDMA中断数量到msix_count属性上// 中断MAPstructmsi_map{intindex;in...
printf("ib devices count=%d\n",num_devices);CHECK(devs&&num_devices,"ibv_get_device_list fail...
retry_count qp_attr->rnr_retry = cm_id_priv->rnr_retry_count qp_attr->...