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Wed, 27 Mar 2019 18:22:09 GMT (envelope-from np@FreeBSD.org) Message-Id: <201903271822.x2RIM9va038265@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: np set sender to np@FreeBSD.org using -f From: Navdeep Parhar To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r345586 - stable/12/sys/dev/cxgbe X-SVN-Group: stable-12 X-SVN-Commit-Author: np X-SVN-Commit-Paths: stable/12/sys/dev/cxgbe X-SVN-Commit-Revision: 345586 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk X-Loop: FreeBSD.org Sender: owner-src-committers@freebsd.org X-Rspamd-Queue-Id: 7B098876F1 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.97 / 15.00]; local_wl_from(0.00)[freebsd.org]; NEURAL_HAM_MEDIUM(-0.99)[-0.993,0]; NEURAL_HAM_SHORT(-0.98)[-0.976,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US]; NEURAL_HAM_LONG(-1.00)[-1.000,0] Status: O X-BeenThere: svn-src-stable-12@freebsd.org X-Mailman-Version: 2.1.29 List-Id: SVN commit messages for only the 12-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Date: Tue, 03 Sep 2019 14:05:46 -0000 X-Original-Date: Wed, 27 Mar 2019 18:22:09 +0000 (UTC) X-List-Received-Date: Tue, 03 Sep 2019 14:05:46 -0000 Author: np Date: Wed Mar 27 18:22:08 2019 New Revision: 345586 URL: https://svnweb.freebsd.org/changeset/base/345586 Log: MFC r339628: cxgbe(4): improve the accuracy of various TSO limits reported to the kernel. Sponsored by: Chelsio Communications Modified: stable/12/sys/dev/cxgbe/adapter.h stable/12/sys/dev/cxgbe/t4_main.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/dev/cxgbe/adapter.h ============================================================================== --- stable/12/sys/dev/cxgbe/adapter.h Wed Mar 27 18:03:34 2019 (r345585) +++ stable/12/sys/dev/cxgbe/adapter.h Wed Mar 27 18:22:08 2019 (r345586) @@ -116,6 +116,7 @@ enum { SGE_MAX_WR_NDESC = SGE_MAX_WR_LEN / EQ_ESIZE, /* max WR size in desc */ TX_SGL_SEGS = 39, TX_SGL_SEGS_TSO = 38, + TX_SGL_SEGS_EO_TSO = 30, /* XXX: lower for IPv6. */ TX_WR_FLITS = SGE_MAX_WR_LEN / 8 }; Modified: stable/12/sys/dev/cxgbe/t4_main.c ============================================================================== --- stable/12/sys/dev/cxgbe/t4_main.c Wed Mar 27 18:03:34 2019 (r345585) +++ stable/12/sys/dev/cxgbe/t4_main.c Wed Mar 27 18:22:08 2019 (r345586) @@ -63,6 +63,8 @@ __FBSDID("$FreeBSD$"); #ifdef RSS #include #endif +#include +#include #if defined(__i386__) || defined(__amd64__) #include #include @@ -1653,9 +1655,13 @@ cxgbe_vi_attach(device_t dev, struct vi_info *vi) ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_IP | CSUM_TSO | CSUM_UDP_IPV6 | CSUM_TCP_IPV6; - ifp->if_hw_tsomax = 65536 - (ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN); - ifp->if_hw_tsomaxsegcount = TX_SGL_SEGS; - ifp->if_hw_tsomaxsegsize = 65536; + ifp->if_hw_tsomax = IP_MAXPACKET; + ifp->if_hw_tsomaxsegcount = TX_SGL_SEGS_TSO; +#ifdef RATELIMIT + if (is_ethoffload(vi->pi->adapter) && vi->nofldtxq != 0) + ifp->if_hw_tsomaxsegcount = TX_SGL_SEGS_EO_TSO; +#endif + ifp->if_hw_tsomaxsegsize = 0; ether_ifattach(ifp, vi->hw_addr); #ifdef DEV_NETMAP