Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753374Ab0DMQ2T (ORCPT ); Tue, 13 Apr 2010 12:28:19 -0400 Received: from mga02.intel.com ([134.134.136.20]:21092 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753048Ab0DMQ2R convert rfc822-to-8bit (ORCPT ); Tue, 13 Apr 2010 12:28:17 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.52,198,1270450800"; d="scan'208";a="508767572" From: "Tung, Chien Tin" To: Andrea Gozzelino , "linux-kernel@vger.kernel.org" , "linux-rdma@vger.kernel.org" , "rolandd@cisco.com" , "peterz@infradead.org" , "pavel@ucw.cz" , "mingo@elte.hu" , Eric B Munson , Steve Wise Date: Tue, 13 Apr 2010 09:28:14 -0700 Subject: RE: Socket Direct Protocol: help (2) Thread-Topic: Socket Direct Protocol: help (2) Thread-Index: AcraTaoAP5dQHyzdQbqIjnF2p6VPCAA1vn+A Message-ID: <2EFBCAEF10980645BBCFB605689E08E9047C7402DA@azsmsx506.amr.corp.intel.com> References: <13381_1271060138_o3C8FUH8013968_2977669.1271060085255.SLOX.WebMail.wwwrun@imap.lnl.infn.it> <1246722.1271082830120.SLOX.WebMail.wwwrun@imap.lnl.infn.it> In-Reply-To: <1246722.1271082830120.SLOX.WebMail.wwwrun@imap.lnl.infn.it> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 874 Lines: 30 >I add that in kernel space SDP debug the error is: > >command line: dmesg >sdp_init_qp:95 sdp_sock( 2100:2 40720:0): recv sge's. capability: 4 >needed: 9 >sdp_init_qp:95 sdp_sock( 2100:2 41203:0): recv sge's. capability: 4 >needed: 9 > >The structure sdp_init_qp() is defined in >/usr/src/ofa_kernel-1.5.1/drivers/infiniband/ulp/sdp/sdp_cma.c (lines 76 >- 141) NE020 supports 4 SGEs. I don't know enough about SDP to know why it is using this calculation for # of send_sge: #define SDP_MAX_RECV_SKB_FRAGS (PAGE_SIZE > 0x8000 ? 1 : 0x8000 / PAGE_SIZE) >Could be a firmware problem? This is not a firmware problem. Chien -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/