linux-kernel - [PATCH V2 0/6] mmc: block: Fixes for CQE error recovery recovery

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Date:   Fri,  3 Nov 2023 10:47:14 +0200
From:   Adrian Hunter <adrian.hunter@...el.com>
To:     Ulf Hansson <ulf.hansson@...aro.org>,
        Kornel Dulęba <korneld@...omium.org>,
        Radoslaw Biernacki <biernacki@...gle.com>,
        Gwendal Grignou <gwendal@...omium.org>,
        Asutosh Das <quic_asutoshd@...cinc.com>
Cc:     Chaotian Jing <chaotian.jing@...iatek.com>,
        Bhavya Kapoor <b-kapoor@...com>,
        Kamal Dasu <kamal.dasu@...adcom.com>,
        Al Cooper <alcooperx@...il.com>,
        Haibo Chen <haibo.chen@....com>,
        Shaik Sajida Bhanu <quic_c_sbhanu@...cinc.com>,
        Sai Krishna Potthuri <sai.krishna.potthuri@....com>,
        Victor Shih <victor.shih@...esyslogic.com.tw>,
        Ben Chuang <ben.chuang@...esyslogic.com.tw>,
        Thierry Reding <thierry.reding@...il.com>,
        Aniruddha Tvs Rao <anrao@...dia.com>,
        Chun-Hung Wu <chun-hung.wu@...iatek.com>,
        linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH V2 0/6] mmc: block: Fixes for CQE error recovery recovery

Hi

Some issues have been found with CQE error recovery.  Here are some fixes.

As of V2, the alternative implementation for the patch from Kornel Dulęba:

	https://lore.kernel.org/linux-mmc/e7c12e07-7540-47ea-8891-2cec73d58df1@intel.com/T/#u

is now included, see patch 6 "mmc: cqhci: Fix task clearing in CQE error
recovery")
	
Please also note ->post_disable() seems to be missing from
cqhci_recovery_start().  It would be good if ->post_disable()
users could check if this needs attention.


Changes in V2:

      mmc: cqhci: Fix task clearing in CQE error recovery
            New patch

      mmc: cqhci: Warn of halt or task clear failure
            Add fixes and stable tags


Adrian Hunter (6):
      mmc: block: Do not lose cache flush during CQE error recovery
      mmc: cqhci: Increase recovery halt timeout
      mmc: block: Be sure to wait while busy in CQE error recovery
      mmc: block: Retry commands in CQE error recovery
      mmc: cqhci: Warn of halt or task clear failure
      mmc: cqhci: Fix task clearing in CQE error recovery

 drivers/mmc/core/block.c      |  2 ++
 drivers/mmc/core/core.c       |  9 +++++++--
 drivers/mmc/host/cqhci-core.c | 44 +++++++++++++++++++++----------------------
 3 files changed, 31 insertions(+), 24 deletions(-)


Regards
Adrian