On Sat, Jul 14, 2018 at 8:58 AM, Leon Romanovsky <leonro@xxxxxxxxxxxx> wrote: > On Fri, Jul 13, 2018 at 12:27:26PM -0400, Olga Kornievskaia wrote: >> On Fri, Jul 13, 2018 at 12:02 PM, Christopher Lameter <cl@xxxxxxxxx> wrote: >> > On Wed, 11 Jul 2018, Olga Kornievskaia wrote: >> > >> >> Please excuse me if this is not the right place to post this (but >> >> according to the MAINTAINERS list for the ethernet Mellanox MLX5 >> >> driver this should be it). I'm having issues with the latest kernel >> >> (4.18-rc4) and using Mellanox CX-5 cards. I'm trying to send TCP >> >> traffic not RDMA traffic using iperf3. I've noticed issues with >> >> performance. >> > >> > Upgrade to the latest rdma core package? There is a bug in libibverbs that >> > limits throughput that was fixed recently and Mellanox has been pushing >> > out firmware releases that finally make the NIC obey rate limitations. >> > Together this can produce a weird set of constraints on performance. >> >> I have latest Mellanox firmware for the card but I'm not sending RDMA >> traffic. libibverbs shouldn't be in play here? > > It is unrelated to libibverbs and related to Saeed's netdev part. yeah, if this has to do with the upstream mlx5 Ethernet driver, Olga, please report to netdev, where more people can look and respond -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
