From owner-svn-src-stable@freebsd.org Fri Sep 13 00:58:34 2019 Return-Path: Delivered-To: svn-src-stable@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 99119E06EE; Fri, 13 Sep 2019 00:58:34 +0000 (UTC) (envelope-from np@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 46Ty1k3W4Gz3yTx; Fri, 13 Sep 2019 00:58:34 +0000 (UTC) (envelope-from np@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 56CB82730C; Fri, 13 Sep 2019 00:58:34 +0000 (UTC) (envelope-from np@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x8D0wYYW030554; Fri, 13 Sep 2019 00:58:34 GMT (envelope-from np@FreeBSD.org) Received: (from np@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x8D0wYuJ030553; Fri, 13 Sep 2019 00:58:34 GMT (envelope-from np@FreeBSD.org) Message-Id: <201909130058.x8D0wYuJ030553@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: np set sender to np@FreeBSD.org using -f From: Navdeep Parhar Date: Fri, 13 Sep 2019 00:58:34 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r352268 - stable/12/sys/dev/cxgbe/tom X-SVN-Group: stable-12 X-SVN-Commit-Author: np X-SVN-Commit-Paths: stable/12/sys/dev/cxgbe/tom X-SVN-Commit-Revision: 352268 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Sep 2019 00:58:34 -0000 Author: np Date: Fri Sep 13 00:58:33 2019 New Revision: 352268 URL: https://svnweb.freebsd.org/changeset/base/352268 Log: MFC r351524: cxgbe/t4_tom: Limit work requests with immediate payload to a single descriptor. The per-tid tx credits are in demand during active Tx and it's best not to use too many just for payload. Sponsored by: Chelsio Communications Modified: stable/12/sys/dev/cxgbe/tom/t4_cpl_io.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/dev/cxgbe/tom/t4_cpl_io.c ============================================================================== --- stable/12/sys/dev/cxgbe/tom/t4_cpl_io.c Fri Sep 13 00:53:09 2019 (r352267) +++ stable/12/sys/dev/cxgbe/tom/t4_cpl_io.c Fri Sep 13 00:58:33 2019 (r352268) @@ -562,7 +562,7 @@ t4_close_conn(struct adapter *sc, struct toepcb *toep) static inline int max_imm_payload(int tx_credits) { - const int n = 2; /* Use only up to 2 desc for imm. data WR */ + const int n = 1; /* Use no more than one desc for imm. data WR */ KASSERT(tx_credits >= 0 && tx_credits <= MAX_OFLD_TX_CREDITS,