[PATCH] net/mlx5: support no host PF configuration

[Raslan Darawsheh]

Hi,

From: Jiawei(Jonny) Wang <jiaweiw at nvidia.com>
Sent: Wednesday, October 11, 2023 9:41 AM
To: Suanming Mou; Xueming(Steven) Li; Slava Ovsiienko
Cc: dev at dpdk.org; Raslan Darawsheh
Subject: [PATCH] net/mlx5: support no host PF configuration

From: Xueming Li <xuemingl at nvidia.com>

In BlueField, a new firmware configuration option NUM_OF_PF=0 disables
PF on the x86 host side, no HPF on the ARM side, and the only RDMA port
on the ARM side is the bonding device(PF0). A device probe with devargs
of representor=pf[0-1]vf[...] will probe PF0 and PF1 one by one, and
it's possible that PF1 device scan results in no switch ports.

This patch supports the new configuration by allowing a PF scan with
empty switch ports.

Signed-off-by: Xueming Li <xuemingl at nvidia.com>
Signed-off-by: Jiawei Wang <jiaweiw at nvidia.com>

Patch applied to next-net-mlx,

Kindest regards,
Raslan Darawsheh