NVIDIA / Mellanox ConnectX-6 Lx support

2023-09-06 Thread Olivier Croquin
Hi, recently, we have bought servers with Mellanox Ethernet Adaptors of the MT2894 Family [ConnectX‑6 Lx] : - OCP3 form factor : MCX631432AS-ADAI - PCIe form factor : MCX631102AS-ADAT We want to run OpenBSD on those servers. But, looking at the source code, we figured out that the MT2894 family

Mellanox driver : add 100G_LR4 capability

2023-09-15 Thread Olivier Croquin
Hi, The media capability 100GBase_LR4 is not listed in the mcx driver. Could you please take a look at this short patch ? I found the value of 23 in the Linux mlx driver. === --- sys/dev/pci/if_mcx.c Wed Sep 6 05:42:42 2023 +++ sys/

TCP RTO min value

2023-09-15 Thread Olivier Croquin
Hi, recently, I faced an issue on a network with a high percentage of packet loss, which leads to the OpenBSD network stack to wait for the TCP RTO before retransmitting packets. I discovered in sys/netinet/tcp_timer.h (line 102) that the minimum value is 1 second : #define TCPTV_MIN TCP_TI