Date: Mon, 26 Jun 2017 16:25:28 +0300 From: "Andrey V. Elsukov" <bu7cher@yandex.ru> To: Ben RUBSON <ben.rubson@gmail.com> Cc: Ryan Stone <rysto32@gmail.com>, FreeBSD Net <freebsd-net@freebsd.org>, "freebsd-scsi@freebsd.org" <freebsd-scsi@freebsd.org> Subject: Re: mbuf_jumbo_9k & iSCSI failing Message-ID: <a36014ff-0a43-93ef-52f8-2bca1388757e@yandex.ru> In-Reply-To: <86D76532-92F4-479C-A714-126D007AD91F@gmail.com> References: <486A6DA0-54C8-40DF-8437-F6E382DA01A8@gmail.com> <6a31ef00-5f7a-d36e-d5e6-0414e8b813c7@selasky.org> <DB3PR05MB089A5789A0A619FA8B7CA36C36C0@DB3PR05MB089.eurprd05.prod.outlook.com> <613AFD8E-72B2-4E3F-9C70-1D1E43109B8A@gmail.com> <2c9a9c2652a74d8eb4b34f5a32c7ad5c@AM5PR0502MB2916.eurprd05.prod.outlook.com> <DB3PR05MB089011A41EF87A40C7AC741C36E0@DB3PR05MB089.eurprd05.prod.outlook.com> <F19B51C7-7DDD-4FAB-9091-0B7C8A7CE649@gmail.com> <52A2608C-A57E-4E75-A952-F4776BA23CA4@gmail.com> <9B507AA6-40FE-4B8D-853F-2A9422A2DF67@gmail.com> <CAFMmRNzo=xB8XF6SFD%2BwksmBYjRZ_peYjiPBCXNVyqP%2BdxnujQ@mail.gmail.com> <CAFMmRNwbEwn=TmTAd56rViDV5nDXq_hPmTp-cDwmVqu1XYm=fA@mail.gmail.com> <64abec26-e310-d66d-93ae-3536914ddd84@yandex.ru> <86D76532-92F4-479C-A714-126D007AD91F@gmail.com>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --9jWKaCsF82R6ID2MvOwPFP64eGWl7m89A Content-Type: multipart/mixed; boundary="xqTNpa3hGbXomXjTul6pEVMVTJWshQCR8"; protected-headers="v1" From: "Andrey V. Elsukov" <bu7cher@yandex.ru> To: Ben RUBSON <ben.rubson@gmail.com> Cc: Ryan Stone <rysto32@gmail.com>, FreeBSD Net <freebsd-net@freebsd.org>, "freebsd-scsi@freebsd.org" <freebsd-scsi@freebsd.org> Message-ID: <a36014ff-0a43-93ef-52f8-2bca1388757e@yandex.ru> Subject: Re: mbuf_jumbo_9k & iSCSI failing References: <486A6DA0-54C8-40DF-8437-F6E382DA01A8@gmail.com> <6a31ef00-5f7a-d36e-d5e6-0414e8b813c7@selasky.org> <DB3PR05MB089A5789A0A619FA8B7CA36C36C0@DB3PR05MB089.eurprd05.prod.outlook.com> <613AFD8E-72B2-4E3F-9C70-1D1E43109B8A@gmail.com> <2c9a9c2652a74d8eb4b34f5a32c7ad5c@AM5PR0502MB2916.eurprd05.prod.outlook.com> <DB3PR05MB089011A41EF87A40C7AC741C36E0@DB3PR05MB089.eurprd05.prod.outlook.com> <F19B51C7-7DDD-4FAB-9091-0B7C8A7CE649@gmail.com> <52A2608C-A57E-4E75-A952-F4776BA23CA4@gmail.com> <9B507AA6-40FE-4B8D-853F-2A9422A2DF67@gmail.com> <CAFMmRNzo=xB8XF6SFD+wksmBYjRZ_peYjiPBCXNVyqP+dxnujQ@mail.gmail.com> <CAFMmRNwbEwn=TmTAd56rViDV5nDXq_hPmTp-cDwmVqu1XYm=fA@mail.gmail.com> <64abec26-e310-d66d-93ae-3536914ddd84@yandex.ru> <86D76532-92F4-479C-A714-126D007AD91F@gmail.com> In-Reply-To: <86D76532-92F4-479C-A714-126D007AD91F@gmail.com> --xqTNpa3hGbXomXjTul6pEVMVTJWshQCR8 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 26.06.2017 16:27, Ben RUBSON wrote: >=20 >> On 26 Jun 2017, at 15:13, Andrey V. Elsukov <bu7cher@yandex.ru> wrote:= >> >> I think it is not mlxen specific problem, we have the same symptoms wi= th >> ixgbe(4) driver too. To avoid the problem we have patches that are >> disable using of 9k mbufs, and instead only use 4k mbufs. >=20 > Interesting feedback Andrey, thank you ! > The problem may be then "general". > So you still use large MTU (>=3D9000) but only allocating 4k mbufs, as = a workaround ? Yes. --=20 WBR, Andrey V. Elsukov --xqTNpa3hGbXomXjTul6pEVMVTJWshQCR8-- --9jWKaCsF82R6ID2MvOwPFP64eGWl7m89A Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEzBAEBCAAdFiEE5lkeG0HaFRbwybwAAcXqBBDIoXoFAllRC0gACgkQAcXqBBDI oXolKAf/VzLKbEtViQOs0S8iDBHHtg1+nTeDCtQCWdLq+dyLhwPWcDrHiSJ6xr1m Xvt4nuuXb1GFcLNBU/ewO5Kg2qM4qbnPN/k3OdeSdBiYfFKH1GwBVmwvDOkVhb0E gCoj4ambpXb18DElABEOIl/4xta91W4zpu+CGPPYG9QfsnMXwDh8xBaOtus/Ktar AKlUDo4rE9UaCDYuvVAa0bqSgHbgJ9B/xJKzGppNwDtFt/B364WByEbL5yDIvkR1 hrOVVi1qp7P0fLcCboD91elipEmZL4uDoVDZOFL/kj+yfnVuPtp2PqAkCCxyz3Rw UyJnnUZTBB4fDHhrIK4obakxpLgkQQ== =KQil -----END PGP SIGNATURE----- --9jWKaCsF82R6ID2MvOwPFP64eGWl7m89A--
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