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Content-Language: en-US To: Leon Romanovsky , Albert Huang Cc: Karsten Graul , Wenjia Zhang , Jan Karcher , "D. Wythe" , Tony Lu , Wen Gu , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , linux-s390@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, RDMA mailing list , Jason Gunthorpe References: <20230925023546.9964-1-huangjie.albert@bytedance.com> <20230926104831.GJ1642130@unreal> From: Alexandra Winter In-Reply-To: <20230926104831.GJ1642130@unreal> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: ZDkRJrc-8DDCrdra6qNLwn3HL9C1tAGf X-Proofpoint-GUID: 5cpoe31gYOgKmzBmR1uCO4D8uepyTSlx X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.980,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-09-26_07,2023-09-25_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 phishscore=0 bulkscore=0 clxscore=1011 mlxlogscore=540 lowpriorityscore=0 suspectscore=0 spamscore=0 priorityscore=1501 adultscore=0 malwarescore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2309180000 definitions=main-2309260095 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org On 26.09.23 12:48, Leon Romanovsky wrote: > This patch made me wonder, why doesn't SMC use RDMA-CM like all other > in-kernel ULPs which work over RDMA? > > Thanks The idea behind SMC is that it should look an feel to the applications like TCP sockets. So for connection management it uses TCP over IP; RDMA is just used for the data transfer.