From: Dan Williams <dan.j.williams@intel.com>
To: Davidlohr Bueso <dave@stgolabs.net>, <dan.j.williams@intel.com>
Cc: <dave.jiang@intel.com>, <vishal.l.verma@intel.com>,
<Jonathan.Cameron@huawei.com>, <fan.ni@samsung.com>,
<a.manzanares@samsung.com>, <dave@stgolabs.net>,
<linux-cxl@vger.kernel.org>
Subject: RE: [PATCH 3/7] cxl/mbox: Add sanitation handling machinery
Date: Sun, 25 Jun 2023 15:18:17 -0700 [thread overview]
Message-ID: <6498bd2988ff4_8e1782947a@dwillia2-xfh.jf.intel.com.notmuch> (raw)
In-Reply-To: <20230612181038.14421-4-dave@stgolabs.net>
Davidlohr Bueso wrote:
> Sanitation is by definition a device-monopolizing operation, and thus
> the timeslicing rules for other background commands do not apply.
> As such handle this special case asynchronously and return immediately.
> Subsequent changes will allow completion to be pollable from userspace
> via a sysfs file interface.
>
> For devices that don't support interrupts for notifying background
> command completion, self-poll with the caveat that the poller can
> be out of sync with the ready hardware, and therefore care must be
> taken to not allow any new commands to go through until the poller
> sees the hw completion. The poller takes the mbox_mutex to stabilize
> the flagging, minimizing any runtime overhead in the send path to
> check for 'sanitize_tmo' for uncommon poll scenarios.
>
> The irq case is much simpler as hardware will serialize/error
> appropriately.
I noticed that this series bounces back and forth between "sanitation" and
"sanitization". I think everywhere it mention "sanitation" it means
"sanitization", right?
next prev parent reply other threads:[~2023-06-25 22:18 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-12 18:10 [PATCH v6 0/7] cxl: Support device sanitation Davidlohr Bueso
2023-06-12 18:10 ` [PATCH 1/7] cxl/mbox: Allow for IRQ_NONE case in the isr Davidlohr Bueso
2023-06-13 12:49 ` Jonathan Cameron
2023-06-13 18:11 ` Dave Jiang
2023-06-12 18:10 ` [PATCH 2/7] cxl/mem: Introduce security state sysfs file Davidlohr Bueso
2023-06-13 18:12 ` Dave Jiang
2023-06-12 18:10 ` [PATCH 3/7] cxl/mbox: Add sanitation handling machinery Davidlohr Bueso
2023-06-13 16:07 ` Jonathan Cameron
2023-06-13 16:28 ` Davidlohr Bueso
2023-06-14 8:36 ` Jonathan Cameron
2023-06-25 22:13 ` Dan Williams
2023-06-26 18:17 ` Davidlohr Bueso
2023-06-25 22:18 ` Dan Williams [this message]
2023-06-12 18:10 ` [PATCH 4/7] cxl/mem: Wire up Sanitation support Davidlohr Bueso
2023-06-25 22:34 ` Dan Williams
2023-06-12 18:10 ` [PATCH 5/7] cxl/test: Add Sanitize opcode support Davidlohr Bueso
2023-06-12 18:10 ` [PATCH 6/7] cxl/mem: Support Secure Erase Davidlohr Bueso
2023-06-12 18:10 ` [PATCH 7/7] cxl/test: Add Secure Erase opcode support Davidlohr Bueso
2023-06-13 15:26 ` [PATCH v6 0/7] cxl: Support device sanitation Jonathan Cameron
2023-06-13 15:51 ` Jonathan Cameron
2023-06-13 16:25 ` Davidlohr Bueso
2023-06-25 22:44 ` Dan Williams
2023-06-26 21:32 ` Davidlohr Bueso
2023-06-26 22:47 ` Dan Williams
2023-06-27 8:02 ` [PATCH] cxl/pci: Use correct flag for sanitize polling Davidlohr Bueso
2023-06-27 23:01 ` Dan Williams
-- strict thread matches above, loose matches on Subject: below --
2023-04-21 9:23 [PATCH v4 0/7] cxl: Background cmds and device sanitation Davidlohr Bueso
2023-04-21 9:23 ` [PATCH 3/7] cxl/mbox: Add sanitation handling machinery Davidlohr Bueso
2023-04-28 16:43 ` Dave Jiang
2023-04-28 16:46 ` Davidlohr Bueso
2023-04-28 17:37 ` Dave Jiang
2023-05-11 14:45 ` Jonathan Cameron
2023-05-11 16:48 ` Davidlohr Bueso
2023-05-12 17:02 ` Jonathan Cameron
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