From patchwork Wed Sep 6 09:15:04 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Yan X-Patchwork-Id: 9940197 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id E88CE602CC for ; Wed, 6 Sep 2017 09:16:42 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 881A428B60 for ; Wed, 6 Sep 2017 09:16:42 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7C86228B69; Wed, 6 Sep 2017 09:16:42 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C72DB28B60 for ; Wed, 6 Sep 2017 09:16:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752867AbdIFJPo (ORCPT ); Wed, 6 Sep 2017 05:15:44 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:5551 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752220AbdIFJMi (ORCPT ); Wed, 6 Sep 2017 05:12:38 -0400 Received: from 172.30.72.59 (EHLO DGGEMS405-HUB.china.huawei.com) ([172.30.72.59]) by dggrg05-dlp.huawei.com (MOS 4.4.6-GA FastPath queued) with ESMTP id DGR88559; Wed, 06 Sep 2017 17:12:27 +0800 (CST) Received: from huawei.com (10.175.124.28) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.301.0; Wed, 6 Sep 2017 17:12:16 +0800 From: Jason Yan To: , CC: , , , , , , , , , , , , , Ewan Milne , Tomas Henzl Subject: [PATCH v4 01/11] libsas: kill useless ha_event and do some cleanup Date: Wed, 6 Sep 2017 17:15:04 +0800 Message-ID: <1504689314-20072-2-git-send-email-yanaijie@huawei.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1504689314-20072-1-git-send-email-yanaijie@huawei.com> References: <1504689314-20072-1-git-send-email-yanaijie@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.124.28] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020206.59AFBBFB.00E0, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2014-11-16 11:51:01, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 6df9fddf9be7ef5a233469e97f4c5f2c Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The ha_event now has only one event HAE_RESET, and this event does nothing. Kill it and do some cleanup. This is a preparation for enhance libsas hotplug feature in the next patches. Signed-off-by: Jason Yan Signed-off-by: John Garry CC: Johannes Thumshirn CC: Ewan Milne CC: Christoph Hellwig CC: Tomas Henzl CC: Dan Williams Reviewed-by: Johannes Thumshirn Reviewed-by: Christoph Hellwig --- drivers/scsi/aic94xx/aic94xx_hwi.c | 3 --- drivers/scsi/hisi_sas/hisi_sas_main.c | 1 - drivers/scsi/libsas/sas_dump.c | 10 ---------- drivers/scsi/libsas/sas_dump.h | 1 - drivers/scsi/libsas/sas_event.c | 20 -------------------- drivers/scsi/libsas/sas_init.c | 12 ------------ include/scsi/libsas.h | 21 --------------------- 7 files changed, 68 deletions(-) diff --git a/drivers/scsi/aic94xx/aic94xx_hwi.c b/drivers/scsi/aic94xx/aic94xx_hwi.c index f2671a8..ec09438 100644 --- a/drivers/scsi/aic94xx/aic94xx_hwi.c +++ b/drivers/scsi/aic94xx/aic94xx_hwi.c @@ -721,11 +721,8 @@ int asd_init_hw(struct asd_ha_struct *asd_ha) */ static void asd_chip_reset(struct asd_ha_struct *asd_ha) { - struct sas_ha_struct *sas_ha = &asd_ha->sas_ha; - ASD_DPRINTK("chip reset for %s\n", pci_name(asd_ha->pcidev)); asd_chip_hardrst(asd_ha); - sas_ha->notify_ha_event(sas_ha, HAE_RESET); } /* ---------- Done List Routines ---------- */ diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index 4022c3f..5e47abb 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -990,7 +990,6 @@ static int hisi_sas_controller_reset(struct hisi_hba *hisi_hba) hisi_sas_release_tasks(hisi_hba); spin_unlock_irqrestore(&hisi_hba->lock, flags); - sas_ha->notify_ha_event(sas_ha, HAE_RESET); dev_dbg(dev, "controller reset successful!\n"); } else return -1; diff --git a/drivers/scsi/libsas/sas_dump.c b/drivers/scsi/libsas/sas_dump.c index cd6f99c..7e5d262 100644 --- a/drivers/scsi/libsas/sas_dump.c +++ b/drivers/scsi/libsas/sas_dump.c @@ -24,10 +24,6 @@ #include "sas_dump.h" -static const char *sas_hae_str[] = { - [0] = "HAE_RESET", -}; - static const char *sas_porte_str[] = { [0] = "PORTE_BYTES_DMAED", [1] = "PORTE_BROADCAST_RCVD", @@ -53,12 +49,6 @@ void sas_dprint_phye(int phyid, enum phy_event pe) SAS_DPRINTK("phy%d: phy event: %s\n", phyid, sas_phye_str[pe]); } -void sas_dprint_hae(struct sas_ha_struct *sas_ha, enum ha_event he) -{ - SAS_DPRINTK("ha %s: %s event\n", dev_name(sas_ha->dev), - sas_hae_str[he]); -} - void sas_dump_port(struct asd_sas_port *port) { SAS_DPRINTK("port%d: class:0x%x\n", port->id, port->class); diff --git a/drivers/scsi/libsas/sas_dump.h b/drivers/scsi/libsas/sas_dump.h index 800e4c6..6aaee6b 100644 --- a/drivers/scsi/libsas/sas_dump.h +++ b/drivers/scsi/libsas/sas_dump.h @@ -26,5 +26,4 @@ void sas_dprint_porte(int phyid, enum port_event pe); void sas_dprint_phye(int phyid, enum phy_event pe); -void sas_dprint_hae(struct sas_ha_struct *sas_ha, enum ha_event he); void sas_dump_port(struct asd_sas_port *port); diff --git a/drivers/scsi/libsas/sas_event.c b/drivers/scsi/libsas/sas_event.c index c0d0d97..70c4653 100644 --- a/drivers/scsi/libsas/sas_event.c +++ b/drivers/scsi/libsas/sas_event.c @@ -124,14 +124,6 @@ void sas_enable_revalidation(struct sas_ha_struct *ha) mutex_unlock(&ha->disco_mutex); } -static int notify_ha_event(struct sas_ha_struct *sas_ha, enum ha_event event) -{ - BUG_ON(event >= HA_NUM_EVENTS); - - return sas_queue_event(event, &sas_ha->pending, - &sas_ha->ha_events[event].work, sas_ha); -} - static int notify_port_event(struct asd_sas_phy *phy, enum port_event event) { struct sas_ha_struct *ha = phy->ha; @@ -154,18 +146,6 @@ int sas_notify_phy_event(struct asd_sas_phy *phy, enum phy_event event) int sas_init_events(struct sas_ha_struct *sas_ha) { - static const work_func_t sas_ha_event_fns[HA_NUM_EVENTS] = { - [HAE_RESET] = sas_hae_reset, - }; - - int i; - - for (i = 0; i < HA_NUM_EVENTS; i++) { - INIT_SAS_WORK(&sas_ha->ha_events[i].work, sas_ha_event_fns[i]); - sas_ha->ha_events[i].ha = sas_ha; - } - - sas_ha->notify_ha_event = notify_ha_event; sas_ha->notify_port_event = notify_port_event; sas_ha->notify_phy_event = sas_notify_phy_event; diff --git a/drivers/scsi/libsas/sas_init.c b/drivers/scsi/libsas/sas_init.c index 64e9cdd..d3f5b57 100644 --- a/drivers/scsi/libsas/sas_init.c +++ b/drivers/scsi/libsas/sas_init.c @@ -106,17 +106,6 @@ void sas_hash_addr(u8 *hashed, const u8 *sas_addr) hashed[2] = r & 0xFF; } - -/* ---------- HA events ---------- */ - -void sas_hae_reset(struct work_struct *work) -{ - struct sas_ha_event *ev = to_sas_ha_event(work); - struct sas_ha_struct *ha = ev->ha; - - clear_bit(HAE_RESET, &ha->pending); -} - int sas_register_ha(struct sas_ha_struct *sas_ha) { int error = 0; @@ -154,7 +143,6 @@ int sas_register_ha(struct sas_ha_struct *sas_ha) INIT_LIST_HEAD(&sas_ha->eh_ata_q); return 0; - Undo_ports: sas_unregister_ports(sas_ha); Undo_phys: diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h index cfaeed2..e536597 100644 --- a/include/scsi/libsas.h +++ b/include/scsi/libsas.h @@ -60,11 +60,6 @@ enum sas_phy_type { * so when updating/adding events here, please also * update the other file too. */ -enum ha_event { - HAE_RESET = 0U, - HA_NUM_EVENTS = 1, -}; - enum port_event { PORTE_BYTES_DMAED = 0U, PORTE_BROADCAST_RCVD = 1, @@ -362,18 +357,6 @@ struct scsi_core { }; -struct sas_ha_event { - struct sas_work work; - struct sas_ha_struct *ha; -}; - -static inline struct sas_ha_event *to_sas_ha_event(struct work_struct *work) -{ - struct sas_ha_event *ev = container_of(work, typeof(*ev), work.work); - - return ev; -} - enum sas_ha_state { SAS_HA_REGISTERED, SAS_HA_DRAINING, @@ -383,9 +366,6 @@ enum sas_ha_state { struct sas_ha_struct { /* private: */ - struct sas_ha_event ha_events[HA_NUM_EVENTS]; - unsigned long pending; - struct list_head defer_q; /* work queued while draining */ struct mutex drain_mutex; unsigned long state; @@ -415,7 +395,6 @@ struct sas_ha_struct { * their siblings when forming wide ports */ /* LLDD calls these to notify the class of an event. */ - int (*notify_ha_event)(struct sas_ha_struct *, enum ha_event); int (*notify_port_event)(struct asd_sas_phy *, enum port_event); int (*notify_phy_event)(struct asd_sas_phy *, enum phy_event);