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From: Ira Weiny <ira.weiny@intel.com>
To: Fan Ni <fan.ni@samsung.com>
Cc: Jonathan Cameron <jonathan.cameron@huawei.com>,
	"Singh, Naveen" <naveen.c.singh@intel.com>,
	<linux-cxl@vger.kernel.org>
Subject: Questions about the qemu DCD support in cxl-2023-09-13
Date: Thu, 21 Sep 2023 15:24:26 -0700	[thread overview]
Message-ID: <650cc29ab3f64_50d07294e7@iweiny-mobl.notmuch> (raw)

Fan,

I'm working off of Jonathan's latest CXL branch with the DCD patches.[1]

I've been testing various things and so far I have a couple of questions.

1) If the qmp command is used to add extents which overlap other extents
   shouldn't that throw an error?  I don't see any validation of this and
   I would think a real device would reject such a request from the FM.

2) Where is CXLType3Dev->dc.total_extent_count set?  Attempting to add
   extents prior to driver load does not seem to work.  And I think this
   is because total_extent_count is 0 in cmd_dcd_get_dyn_cap_ext_list().

Ira

[1] https://gitlab.com/jic23/qemu/-/tree/cxl-2023-09-13

             reply	other threads:[~2023-09-21 22:24 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20230921222437uscas1p158e5ceecab50dcb39e33811f567152d8@uscas1p1.samsung.com>
2023-09-21 22:24 ` Ira Weiny [this message]
2023-09-21 22:51   ` Questions about the qemu DCD support in cxl-2023-09-13 Fan Ni
2023-10-23 19:48   ` fan
2023-10-24 18:56     ` fan
2023-10-25  5:25       ` fan
2023-10-26  9:01         ` Jonathan Cameron
2023-10-26 16:58           ` Jonathan Cameron
2023-10-26 16:58             ` Jonathan Cameron
2023-10-27 16:34             ` fan
2023-10-31 17:18               ` Jonathan Cameron
2023-10-31 17:44                 ` fan

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