[Bug 262658] Mellanox ConnectX-3 Pro Initialization error

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=262658

            Bug ID: 262658
           Summary: Mellanox ConnectX-3 Pro Initialization error
           Product: Base System
           Version: 13.0-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: jSML4ThWwBID69YC@protonmail.com

The Mellanox ConnectX-3 Pro network card does not initialize some of the time
when in a Dell R340 server. Sometimes it works on boot, sometimes it fails. It
seems completely random, though it fails more often than it succeeds. If it
fails at boot, it won't load by unloading/reloading the driver with
kldunload/kldload. 

The same ConnectX-3 cards in a different server work 100% of the time, so I
suspect it has something to do with it being in a Dell R340. 

Server hardware: Dell PowerEdge R340

pciconf -lv
none7@pci0:3:0:0:       class=0x020000 rev=0x00 hdr=0x00 vendor=0x15b3
device=0x1007 subvendor=0x15b3 subdevice=0x0006
    vendor     = 'Mellanox Technologies'
    device     = 'MT27520 Family [ConnectX-3 Pro]'
    class      = network
    subclass   = ethernet

DMESG error
mlx5en: Mellanox Ethernet driver 3.6.0 (December 2020)
mlx4_core0: <mlx4_core> mem 0x92200000-0x922fffff,0x91000000-0x917fffff at
device 0.0 on pci3
mlx4_core: Mellanox ConnectX core driver v3.6.0 (December 2020)
mlx4_core: Initializing mlx4_core
mlx4_core0: command 0xfff failed: fw status = 0x1
mlx4_core0: MAP_FA command failed, aborting
mlx4_core0: Failed to start FW, aborting
mlx4_core0: Failed to init fw, aborting.
device_attach: mlx4_core0 attach returned 5
mlx4_core0: <mlx4_core> mem 0x92200000-0x922fffff,0x91000000-0x917fffff at
device 0.0 on pci3
mlx4_core: Initializing mlx4_core
mlx4_core0: command 0xfff failed: fw status = 0x1
mlx4_core0: MAP_FA command failed, aborting
mlx4_core0: Failed to start FW, aborting
mlx4_core0: Failed to init fw, aborting.
device_attach: mlx4_core0 attach returned 5

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