Date: Tue, 30 Mar 2021 08:22:03 +0200 From: Vincenzo Maffione <vmaffione@freebsd.org> To: =?UTF-8?B?w5Z6a2FuIEtJUklL?= <ozkan.kirik@gmail.com> Cc: FreeBSD Net <freebsd-net@freebsd.org>, krzysztof.galazka@intel.com, gowtham.kumar.ks@intel.com, erj@freebsd.org, jeffrey.e.pieper@intel.com Subject: Re: ixl netmap TX queue remains full Message-ID: <CA%2B_eA9hV2k1mExm9fttbRey53vEvOtk%2BCgHX9ancsJ%2BJu10Miw@mail.gmail.com> In-Reply-To: <CAAcX-AE5%2B8v4YWix1pUxedY0aYgpoHL5G9_oUqTXRoS_prNVNQ@mail.gmail.com> References: <CAAcX-AE5%2B8v4YWix1pUxedY0aYgpoHL5G9_oUqTXRoS_prNVNQ@mail.gmail.com>
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Hi, Could this be related to https://reviews.freebsd.org/D26896? Moreover, what happens if you switch the enable_head_writeback sysctl? Cheers, Vincenzo Il giorno lun 29 mar 2021 alle ore 10:36 =C3=96zkan KIRIK <ozkan.kirik@gmai= l.com> ha scritto: > Hello, > > I hit problems about ixl driver's netmap support. I have no problems with > ixgbe. > The problem is tested with FreeBSD 12.2-p5 and FreeBSD 13.0-RC3. > > ixl in netmap mode, it works with low throughput (about 2 Gbps) for 20-30 > seconds. And then TX queue remains full. poll with POLLOUT and even > ioctl(fd, NIOCTXSYNC) does not work. So that nic stops working. > > Same netmap software with ixgbe has no problems. > > pciconf -lv output: > ixl0@pci0:183:0:0: class=3D0x020000 card=3D0x37d215d9 chip=3D0x37d28086 r= ev=3D0x04 > hdr=3D0x00 > vendor =3D 'Intel Corporation' > device =3D 'Ethernet Connection X722 for 10GBASE-T' > class =3D network > subclass =3D ethernet > ixl1@pci0:183:0:1: class=3D0x020000 card=3D0x37d215d9 chip=3D0x37d28086 r= ev=3D0x04 > hdr=3D0x00 > vendor =3D 'Intel Corporation' > device =3D 'Ethernet Connection X722 for 10GBASE-T' > class =3D network > subclass =3D ethernet > ixl2@pci0:183:0:2: class=3D0x020000 card=3D0x37d015d9 chip=3D0x37d08086 r= ev=3D0x04 > hdr=3D0x00 > vendor =3D 'Intel Corporation' > device =3D 'Ethernet Connection X722 for 10GbE SFP+' > class =3D network > subclass =3D ethernet > ixl3@pci0:183:0:3: class=3D0x020000 card=3D0x37d015d9 chip=3D0x37d08086 r= ev=3D0x04 > hdr=3D0x00 > vendor =3D 'Intel Corporation' > device =3D 'Ethernet Connection X722 for 10GbE SFP+' > class =3D network > subclass =3D ethernet > > Best regards > _______________________________________________ > freebsd-net@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >
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