From patchwork Sat Dec 5 11:59:00 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 338611 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, UNPARSEABLE_RELAY, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B5ADDC4361A for ; Sat, 5 Dec 2020 14:37:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 71EED2311A for ; Sat, 5 Dec 2020 14:37:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726527AbgLEOgR (ORCPT ); Sat, 5 Dec 2020 09:36:17 -0500 Received: from mailgw01.mediatek.com ([210.61.82.183]:37018 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1725922AbgLEMzA (ORCPT ); Sat, 5 Dec 2020 07:55:00 -0500 X-UUID: 8808834d3952452eb9271d306ada92e9-20201205 X-UUID: 8808834d3952452eb9271d306ada92e9-20201205 Received: from mtkexhb01.mediatek.inc [(172.21.101.102)] by mailgw01.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.14 Build 0819 with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 212438184; Sat, 05 Dec 2020 19:59:05 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs08n1.mediatek.inc (172.21.101.55) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 5 Dec 2020 19:59:02 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sat, 5 Dec 2020 19:59:03 +0800 From: Stanley Chu To: , , , , CC: , , , , , , , , , , , , , , , , , Stanley Chu Subject: [PATCH v5 3/4] scsi: ufs: Introduce event_notify variant function Date: Sat, 5 Dec 2020 19:59:00 +0800 Message-ID: <20201205115901.26815-4-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20201205115901.26815-1-stanley.chu@mediatek.com> References: <20201205115901.26815-1-stanley.chu@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Introduce event_notify variant function to allow vendor to get notification of important events and connect to any proprietary debugging facilities. Reviewed-by: Asutosh Das Reviewed-by: Can Guo Signed-off-by: Stanley Chu --- 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) {