> On 26 Jun 2017, at 15:36, Andrey V. Elsukov <bu7c...@yandex.ru> wrote: > > On 26.06.2017 16:29, Ben RUBSON wrote: >> >>> On 26 Jun 2017, at 15:25, Andrey V. Elsukov <bu7c...@yandex.ru> wrote: >>> >>> On 26.06.2017 16:27, Ben RUBSON wrote: >>>> >>>>> On 26 Jun 2017, at 15:13, Andrey V. Elsukov <bu7c...@yandex.ru> wrote: >>>>> >>>>> I think it is not mlxen specific problem, we have the same symptoms with >>>>> ixgbe(4) driver too. To avoid the problem we have patches that are >>>>> disable using of 9k mbufs, and instead only use 4k mbufs. >>>> >>>> Interesting feedback Andrey, thank you ! >>>> The problem may be then "general". >>>> So you still use large MTU (>=9000) but only allocating 4k mbufs, as a >>>> workaround ? >>> >>> Yes. >> >> Is it a kernel patch or a driver/ixgbe patch ? > > I attached it.
Thank you ! The idea of new sysctls to enable/disable the workaround is nice. Should be easy to modify to use with mlx4_en, waiting for Ryan specific work on this driver. I found a similar issue, reported date : 2013-10-28 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=183381 FreeBSD certainly needs a general solid patch ! _______________________________________________ freebsd-net@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
