From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Sean Hefty" Subject: RE: [RFC] [PATCH 5/22 v2] [for 2.6.36] rdma/cm: update port reservation to support AF_IB Date: Fri, 26 Mar 2010 17:11:04 -0700 Message-ID: <0F1BE18DBBF74165AEA2B3283B01F338@amr.corp.intel.com> References: <2F3826558E79459EAD2A457A604221C1@amr.corp.intel.com> <012F7D9E5E97445E9100EF170212AEE7@amr.corp.intel.com> <7451BD1514874F3E987E55040776EECC@amr.corp.intel.com> <20100325202924.GO29129@obsidianresearch.com> <20100325220435.GP29129@obsidianresearch.com> <20100326040809.GD9769@obsidianresearch.com> <57287E48AAAD47A4BD50719B889F4596@amr.corp.intel.com> <350558935FCC47B6A5ABA8402109746C@amr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <350558935FCC47B6A5ABA8402109746C-Zpru7NauK7drdx17CPfAsdBPR1lH4CV8@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: "Hefty, Sean" , 'Jason Gunthorpe' , Tom Tucker Cc: linux-rdma List-Id: linux-rdma@vger.kernel.org >Actually, the port space doesn't matter when specifying a multicast group. So, >I can't think of any real advantage to supporting AF_IB/PS_TCP. Okay - I found one advantage - fewer changes. :b I've started adding RDMA_PS_IB. But the rdma_cm code uses the port space to select between UD or RC operation, so additional changes are needed. (I'm doing them now rather than deferring them, since it affects the user to kernel interface.) Since PS IB is not sufficient, I'm adding the qp_type as a parameter into rdma_create_id, for that purpose instead. (This change is only to the kernel API.) This should allow for eventual support of UC QPs, for which there is an outstanding request. - Sean -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html