Re: PCIe NVME drives not detected on Dell R6515

From: Scott Long <scottl_at_samsco.org>
Date: Fri, 17 Apr 2020 15:15:40 -0600
> On Apr 17, 2020, at 3:13 PM, Mel Pilgrim <list_freebsd_at_bluerosetech.com> wrote:
> 
> On 2020-04-17 8:50, Warner Losh wrote:
>> On Fri, Apr 17, 2020 at 9:39 AM Scott Long <scottl_at_samsco.org> wrote:
>>> Can you send me the output of ‘pciconf -llv’, either in 12-STABLE or
>>> 13-CURRENT?  Also, can you send me the output of ‘dmesg’?
>>> 
>> There was another thread that said there was a raid card in the way... It
>> would be cool to find a way to get it out of the way... :)
> On the R6515, NVME drives are supported through a PERC S150 mini card. There's no m.2 slots or U.2 ports on the mainboard itself.  The S150 supports non-RAID mode, but that still leaves supporting a software-based PERC card as a PCIe switch for the 8 or 10 NVME bays behind it.

This doesn’t seem to be the case for Miroslav’s system.  There’s no special handling of the PCIe bridge/switch in linux where it does work, and there’s growing evidence that this is a case of FreeBSD not handling hotplug ports correctly.

Scott
Received on Fri Apr 17 2020 - 19:15:44 UTC

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