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 v4 7/8] scsi: ufs: Introduce event_notify variant function
Date: Sat, 5 Dec 2020 10:39:37 +0800 [thread overview]
Message-ID: <20201205023938.13848-8-stanley.chu@mediatek.com> (raw)
In-Reply-To: <20201205023938.13848-1-stanley.chu@mediatek.com>
Introduce event_notify variant function to allow
vendor to get notification of important events and connect
to any proprietary debugging facilities.
Reviewed-by: Can Guo <cang@codeaurora.org>
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 1a7d31849511..6e72c0543c7b 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -4480,6 +4480,8 @@ 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_event_notify(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 b55a71c10fa6..8c44929bed53 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -319,6 +319,7 @@ 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
+ * @event_notify: called to notify important events
*/
struct ufs_hba_variant_ops {
const char *name;
@@ -353,6 +354,8 @@ struct ufs_hba_variant_ops {
void *data);
int (*program_key)(struct ufs_hba *hba,
const union ufs_crypto_cfg_entry *cfg, int slot);
+ void (*event_notify)(struct ufs_hba *hba,
+ enum ufs_event_type evt, void *data);
};
/* clock gating state */
@@ -1100,6 +1103,14 @@ static inline int ufshcd_vops_clk_scale_notify(struct ufs_hba *hba,
return 0;
}
+static inline void ufshcd_vops_event_notify(struct ufs_hba *hba,
+ enum ufs_event_type evt,
+ void *data)
+{
+ if (hba->vops && hba->vops->event_notify)
+ hba->vops->event_notify(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:[~2020-12-05 2:40 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-05 2:39 [PATCH v4 0/8] Refine error history and introduce event_notify vop Stanley Chu
2020-12-05 2:39 ` [PATCH v4 1/8] scsi: ufs: Remove unused setup_regulators variant function Stanley Chu
2020-12-05 2:39 ` [PATCH v4 2/8] scsi: ufs: Introduce phy_initialization helper Stanley Chu
2020-12-05 2:39 ` [PATCH v4 3/8] scsi: ufs-cdns: Use " Stanley Chu
2020-12-05 2:39 ` [PATCH v4 4/8] scsi: ufs-dwc: " Stanley Chu
2020-12-05 2:39 ` [PATCH v4 5/8] scsi: ufs: Add error history for abort event in UFS Device W-LUN Stanley Chu
2020-12-05 2:39 ` [PATCH v4 6/8] scsi: ufs: Refine error history functions Stanley Chu
2020-12-05 2:39 ` Stanley Chu [this message]
2020-12-05 2:39 ` [PATCH v4 8/8] scsi: ufs-mediatek: Introduce event_notify implementation Stanley Chu
2020-12-05 8:03 ` [PATCH v4 0/8] Refine error history and introduce event_notify vop Avri Altman
2020-12-05 8:05 ` Avri Altman
2020-12-05 12:07 ` Stanley Chu
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