Photon OS + MLX not coming up

[chetan bhasin]

Hi,



We are using DPDK version “*21.02*” and facing issue while doing port start
of MLX (ConnectX-4 Lx Virtual Function)



*0000:0b:00.0 'MT27710 Family [ConnectX-4 Lx Virtual Function]* 1016'
if=eth2 drv=mlx5_core unused=



*Photon kernel version* - 4.19.277-3.ph3



*Firmware version – *

]# ethtool -i eth2

driver: mlx5_core

version: 5.0-0

firmware-version: 14.26.1040 (HP_2690110034)

expansion-rom-version:

bus-info: 0000:0b:00.0

supports-statistics: yes

supports-test: yes

supports-eeprom-access: no

supports-register-dump: no

supports-priv-flags: yes



*modinfo mlx5_core *

filename:
/lib/modules/4.19.277-3.ph3/kernel/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.ko.xz

version:        5.0-0

license:        Dual BSD/GPL

description:    Mellanox 5th generation network adapters (ConnectX series)
core driver

author:         Eli Cohen eli at mellanox.com

srcversion:     981FA6D58D2B017B197F177



We are seeing following errors in dpdk when we start the port



2023/05/12 06:00:57:497 notice     dpdk           EAL: Couldn't map new
region for DMA

2023/05/12 06:01:29:966 error      dpdk           Interface
TwentyFiveGigabitEthernetb/0/0 error -12: Unknown error -12

2023/05/12 06:01:29:966 error      interface      sw_set_flags_helper:
dpdk_interface_admin_up_down: Interface start failed

2023/05/12 06:01:29:966 notice     dpdk           common_mlx5: Unable to
find virtually contiguous chunk for address (0x1000000000).
rte_memseg_contig_walk() failed.

2023/05/12 06:01:29:966 notice     dpdk           mlx5_pci: Failed to init
cache list NIC_ingress_0_matcher_cache entry (nil).

2023/05/12 06:01:29:966 notice     dpdk           mlx5_pci: port 0 failed
to set defaults flows
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