From: Dolev Raviv <draviv@codeaurora.org>
To: linux-scsi@vger.kernel.org
Cc: linux-arm-msm@vger.kernel.org, Dolev Raviv <draviv@codeaurora.org>
Subject: [PATCH 0/2]
Date: Mon, 10 Jun 2013 17:05:16 +0300 [thread overview]
Message-ID: <1370873118-18468-1-git-send-email-draviv@codeaurora.org> (raw)
Those patches replace the previous Query Request and NOP patches:
[PATCH 1/8] scsi: ufs: add support for query
[PATCH 7/8] scsi: ufs: Set fDeviceInit flag to initiate device initialization
[PATCH 8/8] scsi: ufs: Fix the response UPIU length setting
And depends on:
[PATCH 2/8] scsi: ufs: wrap the i/o access operations
[PATCH 3/8] scsi: ufs: amend interrupt configuration
[PATCH 4/8] scsi: ufs: remove version check before IS reg clear
[PATCH 5/8] scsi: ufs: rework link start-up process
Sending the query request via the SCSI vendor specific command can cause a deadlock
in case the SCSI command queue is blocked and we would like to send a query request
(for example fDeviceInit in case of re-initialization).
In addition, usage of a vendor specific SCSI command for UFS can cause future conflicts
if this vendor specific command will be allocated for a different usage.
The below patches allocate an internal tag for NOP and query requests and do not
involve the SCSI layer in UFS specific requests transfers.
This design also resolves the possible deadlock mentioned above.
Dolev Raviv (1):
scsi: ufs: Set fDeviceInit flag to initiate device initialization
Sujit Reddy Thumma (1):
scsi: ufs: Add support for sending NOP OUT UPIU
drivers/scsi/ufs/ufs.h | 127 +++++++-
drivers/scsi/ufs/ufshcd.c | 802 ++++++++++++++++++++++++++++++++++++++------
drivers/scsi/ufs/ufshcd.h | 40 +++-
drivers/scsi/ufs/ufshci.h | 2 +-
4 files changed, 849 insertions(+), 122 deletions(-)
--
1.7.6
--
QUALCOMM ISRAEL, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation
next reply other threads:[~2013-06-10 14:05 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-10 14:05 Dolev Raviv [this message]
2013-06-10 14:05 ` [PATCH 1/2] scsi: ufs: Add support for sending NOP OUT UPIU Dolev Raviv
2013-06-12 5:30 ` Santosh Y
2013-06-13 4:33 ` Sujit Reddy Thumma
2013-06-14 7:40 ` Sujit Reddy Thumma
2013-06-14 13:47 ` Santosh Y
2013-06-10 14:05 ` [PATCH 2/2] scsi: ufs: Set fDeviceInit flag to initiate device initialization Dolev Raviv
2013-06-12 5:34 ` Santosh Y
2013-06-13 4:36 ` Sujit Reddy Thumma
2013-06-14 13:55 ` Santosh Y
-- strict thread matches above, loose matches on Subject: below --
2023-05-23 21:39 [PATCH 0/2] Pranav Prasad
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