From: Stanley Chu <stanley.chu@mediatek.com>
To: <linux-scsi@vger.kernel.org>, <martin.petersen@oracle.com>,
<avri.altman@wdc.com>, <alim.akhtar@samsung.com>,
<jejb@linux.ibm.com>
Cc: <beanhuo@micron.com>, <asutoshd@codeaurora.org>,
<cang@codeaurora.org>, <matthias.bgg@gmail.com>,
<bvanassche@acm.org>, <linux-mediatek@lists.infradead.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <kuohong.wang@mediatek.com>,
<peter.wang@mediatek.com>, <chun-hung.wu@mediatek.com>,
<andy.teng@mediatek.com>, <chaotian.jing@mediatek.com>,
<cc.chou@mediatek.com>, <jiajie.hao@mediatek.com>,
<alice.chao@mediatek.com>, <huadian.liu@mediatek.com>,
Stanley Chu <stanley.chu@mediatek.com>
Subject: [PATCH v1 3/3] scsi: ufs: Introduce notify_event variant function
Date: Thu, 26 Nov 2020 13:38:39 +0800 [thread overview]
Message-ID: <20201126053839.25889-4-stanley.chu@mediatek.com> (raw)
In-Reply-To: <20201126053839.25889-1-stanley.chu@mediatek.com>
Introduce notify_event variant function to allow
vendor to get notified of important events and connect
to any proprietary debugging facilities.
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
---
drivers/scsi/ufs/ufshcd.c | 2 ++
drivers/scsi/ufs/ufshcd.h | 11 +++++++++++
2 files changed, 13 insertions(+)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 7194bed1f10b..63fe37e1c908 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -4484,6 +4484,8 @@ void ufshcd_update_evt_hist(struct ufs_hba *hba, u32 id, u32 val)
e->val[e->pos] = val;
e->tstamp[e->pos] = ktime_get();
e->pos = (e->pos + 1) % UFS_EVENT_HIST_LENGTH;
+
+ ufshcd_vops_notify_event(hba, id, &val);
}
EXPORT_SYMBOL_GPL(ufshcd_update_evt_hist);
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 82c2fc5597bb..a81ca36c1715 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -317,6 +317,7 @@ struct ufs_pwr_mode_info {
* @phy_initialization: used to initialize phys
* @device_reset: called to issue a reset pulse on the UFS device
* @program_key: program or evict an inline encryption key
+ * @notify_event: called to notify important events
*/
struct ufs_hba_variant_ops {
const char *name;
@@ -352,6 +353,8 @@ struct ufs_hba_variant_ops {
void *data);
int (*program_key)(struct ufs_hba *hba,
const union ufs_crypto_cfg_entry *cfg, int slot);
+ void (*notify_event)(struct ufs_hba *hba,
+ enum ufs_event_type evt, void *data);
};
/* clock gating state */
@@ -1097,6 +1100,14 @@ static inline int ufshcd_vops_clk_scale_notify(struct ufs_hba *hba,
return 0;
}
+static inline void ufshcd_vops_notify_event(struct ufs_hba *hba,
+ enum ufs_event_type evt,
+ void *data)
+{
+ if (hba->vops && hba->vops->notify_event)
+ hba->vops->notify_event(hba, evt, data);
+}
+
static inline int ufshcd_vops_setup_clocks(struct ufs_hba *hba, bool on,
enum ufs_notify_change_status status)
{
--
2.18.0
next prev parent reply other threads:[~2020-11-26 5:39 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-26 5:38 [PATCH v1 0/3] Refine error history and introduce notify_event vop Stanley Chu
2020-11-26 5:38 ` [PATCH v1 1/3] scsi: ufs: Add error history for abort event in UFS Device W-LUN Stanley Chu
2020-12-03 5:33 ` Can Guo
2020-11-26 5:38 ` [PATCH v1 2/3] scsi: ufs: Refine error history functions Stanley Chu
2020-12-03 5:46 ` Can Guo
2020-11-26 5:38 ` Stanley Chu [this message]
2020-12-03 5:49 ` [PATCH v1 3/3] scsi: ufs: Introduce notify_event variant function Can Guo
2020-12-05 2:45 ` [PATCH v1 0/3] Refine error history and introduce notify_event vop Asutosh Das (asd)
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