From patchwork Thu Aug 4 13:12:20 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sreekanth Reddy X-Patchwork-Id: 12936348 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DC2DDC19F2D for ; Thu, 4 Aug 2022 13:00:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239720AbiHDNAw (ORCPT ); Thu, 4 Aug 2022 09:00:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41790 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239773AbiHDNAp (ORCPT ); Thu, 4 Aug 2022 09:00:45 -0400 Received: from mail-pf1-x42a.google.com (mail-pf1-x42a.google.com [IPv6:2607:f8b0:4864:20::42a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B2D3B2BED for ; Thu, 4 Aug 2022 06:00:43 -0700 (PDT) Received: by mail-pf1-x42a.google.com with SMTP id 130so11464148pfv.13 for ; Thu, 04 Aug 2022 06:00:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:from:to:cc; bh=RolxevCYI1neS4E8shH2LhaZ3WM79S6DscRmyJPqnLI=; b=QG7iR1KOYlgyi3wdIntpHd4uzHgEMyihPL3b6lofhbs2EECY7N5LJjw0X2EOgg17hU VXadk1xptaqRUSiAtbotnz74/iH2rVecer9RFoOVEDKh1o37kAnfmL7fNBPAb1bGXYYo +p9+9NtGt41HlZrAdwLnuc3AY2iucVT+52WyE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:x-gm-message-state:from:to:cc; bh=RolxevCYI1neS4E8shH2LhaZ3WM79S6DscRmyJPqnLI=; b=UsfUuLWxwksv3gR/N2yEVzog4j8TFW/A1lbAJqNxjedlF2bVWvftqPJx1Mbe1lK33i /1LSP6h/harKEOasm4oHG3MMGJDEKHkspMp0PtKXcLIzQOPeXdXGkxpadjfR1LwpScl2 BkrIefaJ6/hOEx43LrFdnM4AbwF//xsuQuu800+ZuqSL9OD8a+xxfym7i4nxLrryPU5l OfAcjPP4SSlnB/a9gyTooD9b4S3ZvLT8F5CJSiaJdm7qpsbKoGhV5wI/Pax/0DvTwwVu IIru30SE2Z849aWsHBHMKyc6XD46c7Lm2G4eeSaTkTzkfpDKIfwUo3u+Xt+tOW2fywyK HXow== X-Gm-Message-State: ACgBeo1iWr91QSUl0UrRb5CFh0bMV09M9ViIDc19vPCkWhTlIwm52U8s 0jAkdvTc8QXUfpCyoc44FSpTT8ukiQfitXOCzI2OA8nNMR1FrPxUqsIlvmoCypzb1zMmrEEa0X6 cpyVaJMp9dhvVB0FXjh5czCgESQGbH6BTX01D7ZnHgpYkojK0X0scvl6Phhq3nndpGcDWh5NQ5V i7mvpm/BzB X-Google-Smtp-Source: AA6agR4spxGv2plvNTqNMzyiXYpkKkqb6t7KU+MqQYQ86ZZaRlC4ynbknLF99nZVia7xlo7ybGTMNg== X-Received: by 2002:a05:6a00:841:b0:52e:1e7:ceb5 with SMTP id q1-20020a056a00084100b0052e01e7ceb5mr1574369pfk.75.1659618041776; Thu, 04 Aug 2022 06:00:41 -0700 (PDT) Received: from dhcp-10-123-20-36.dhcp.broadcom.net ([192.19.234.250]) by smtp.gmail.com with ESMTPSA id w15-20020aa7954f000000b0052e2a1edab8sm934645pfq.24.2022.08.04.06.00.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 Aug 2022 06:00:40 -0700 (PDT) From: Sreekanth Reddy To: linux-scsi@vger.kernel.org Cc: martin.petersen@oracle.com, Sreekanth Reddy Subject: [PATCH v2 09/15] mpi3mr: Add expander devices to STL Date: Thu, 4 Aug 2022 18:42:20 +0530 Message-Id: <20220804131226.16653-10-sreekanth.reddy@broadcom.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20220804131226.16653-1-sreekanth.reddy@broadcom.com> References: <20220804131226.16653-1-sreekanth.reddy@broadcom.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Register/unregister the expander devices to SCSI Transport Layer(STL) whenever the corresponding expander is added/removed from topology. Signed-off-by: Sreekanth Reddy Reviewed-by: Himanshu Madhani --- drivers/scsi/mpi3mr/mpi3mr.h | 7 + drivers/scsi/mpi3mr/mpi3mr_os.c | 36 ++- drivers/scsi/mpi3mr/mpi3mr_transport.c | 398 ++++++++++++++++++++++++- 3 files changed, 432 insertions(+), 9 deletions(-) diff --git a/drivers/scsi/mpi3mr/mpi3mr.h b/drivers/scsi/mpi3mr/mpi3mr.h index 8c8703e..9cd5f88 100644 --- a/drivers/scsi/mpi3mr/mpi3mr.h +++ b/drivers/scsi/mpi3mr/mpi3mr.h @@ -1341,6 +1341,11 @@ int mpi3mr_cfg_get_driver_pg1(struct mpi3mr_ioc *mrioc, struct mpi3_driver_page1 *driver_pg1, u16 pg_sz); u8 mpi3mr_is_expander_device(u16 device_info); +int mpi3mr_expander_add(struct mpi3mr_ioc *mrioc, u16 handle); +void mpi3mr_expander_remove(struct mpi3mr_ioc *mrioc, u64 sas_address, + struct mpi3mr_hba_port *hba_port); +struct mpi3mr_sas_node *__mpi3mr_expander_find_by_handle(struct mpi3mr_ioc + *mrioc, u16 handle); struct mpi3mr_hba_port *mpi3mr_get_hba_port_by_id(struct mpi3mr_ioc *mrioc, u8 port_id); void mpi3mr_sas_host_refresh(struct mpi3mr_ioc *mrioc); @@ -1348,6 +1353,8 @@ void mpi3mr_sas_host_add(struct mpi3mr_ioc *mrioc); void mpi3mr_update_links(struct mpi3mr_ioc *mrioc, u64 sas_address_parent, u16 handle, u8 phy_number, u8 link_rate, struct mpi3mr_hba_port *hba_port); +void mpi3mr_remove_tgtdev_from_host(struct mpi3mr_ioc *mrioc, + struct mpi3mr_tgt_dev *tgtdev); void mpi3mr_print_device_event_notice(struct mpi3mr_ioc *mrioc, bool device_add); #endif /*MPI3MR_H_INCLUDED*/ diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c index ae77422..9a32dc6 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_os.c +++ b/drivers/scsi/mpi3mr/mpi3mr_os.c @@ -824,7 +824,7 @@ void mpi3mr_print_device_event_notice(struct mpi3mr_ioc *mrioc, * * Return: 0 on success, non zero on failure. */ -static void mpi3mr_remove_tgtdev_from_host(struct mpi3mr_ioc *mrioc, +void mpi3mr_remove_tgtdev_from_host(struct mpi3mr_ioc *mrioc, struct mpi3mr_tgt_dev *tgtdev) { struct mpi3mr_stgt_priv_data *tgt_priv; @@ -1494,7 +1494,10 @@ static void mpi3mr_sastopochg_evt_bh(struct mpi3mr_ioc *mrioc, int i; u16 handle; u8 reason_code; + u64 exp_sas_address = 0; + struct mpi3mr_hba_port *hba_port = NULL; struct mpi3mr_tgt_dev *tgtdev = NULL; + struct mpi3mr_sas_node *sas_expander = NULL; mpi3mr_sastopochg_evt_debug(mrioc, event_data); @@ -1524,6 +1527,13 @@ static void mpi3mr_sastopochg_evt_bh(struct mpi3mr_ioc *mrioc, if (tgtdev) mpi3mr_tgtdev_put(tgtdev); } + + if (mrioc->sas_transport_enabled && (event_data->exp_status == + MPI3_EVENT_SAS_TOPO_ES_NOT_RESPONDING)) { + if (sas_expander) + mpi3mr_expander_remove(mrioc, exp_sas_address, + hba_port); + } } /** @@ -1744,7 +1754,8 @@ static void mpi3mr_fwevt_bh(struct mpi3mr_ioc *mrioc, struct mpi3mr_fwevt *fwevt) { struct mpi3_device_page0 *dev_pg0 = NULL; - u16 perst_id; + u16 perst_id, handle, dev_info; + struct mpi3_device0_sas_sata_format *sasinf = NULL; mpi3mr_fwevt_del_from_list(mrioc, fwevt); mrioc->current_event = fwevt; @@ -1758,10 +1769,23 @@ static void mpi3mr_fwevt_bh(struct mpi3mr_ioc *mrioc, switch (fwevt->event_id) { case MPI3_EVENT_DEVICE_ADDED: { - struct mpi3_device_page0 *dev_pg0 = - (struct mpi3_device_page0 *)fwevt->event_data; - mpi3mr_report_tgtdev_to_host(mrioc, - le16_to_cpu(dev_pg0->persistent_id)); + dev_pg0 = (struct mpi3_device_page0 *)fwevt->event_data; + perst_id = le16_to_cpu(dev_pg0->persistent_id); + handle = le16_to_cpu(dev_pg0->dev_handle); + if (perst_id != MPI3_DEVICE0_PERSISTENTID_INVALID) + mpi3mr_report_tgtdev_to_host(mrioc, perst_id); + else if (mrioc->sas_transport_enabled && + (dev_pg0->device_form == MPI3_DEVICE_DEVFORM_SAS_SATA)) { + sasinf = &dev_pg0->device_specific.sas_sata_format; + dev_info = le16_to_cpu(sasinf->device_info); + if (!mrioc->sas_hba.num_phys) + mpi3mr_sas_host_add(mrioc); + else + mpi3mr_sas_host_refresh(mrioc); + + if (mpi3mr_is_expander_device(dev_info)) + mpi3mr_expander_add(mrioc, handle); + } break; } case MPI3_EVENT_DEVICE_INFO_CHANGED: diff --git a/drivers/scsi/mpi3mr/mpi3mr_transport.c b/drivers/scsi/mpi3mr/mpi3mr_transport.c index 3de9fa0..ff85cf3 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_transport.c +++ b/drivers/scsi/mpi3mr/mpi3mr_transport.c @@ -21,7 +21,7 @@ * * Return: Expander sas_node object reference or NULL */ -static struct mpi3mr_sas_node *__mpi3mr_expander_find_by_handle(struct mpi3mr_ioc +struct mpi3mr_sas_node *__mpi3mr_expander_find_by_handle(struct mpi3mr_ioc *mrioc, u16 handle) { struct mpi3mr_sas_node *sas_expander, *r; @@ -159,6 +159,45 @@ out: return tgtdev; } +/** + * mpi3mr_remove_device_by_sas_address - remove the device + * @mrioc: Adapter instance reference + * @sas_address: SAS address of the device + * @hba_port: HBA port entry + * + * This searches for target device using sas address and hba + * port pointer then removes it from the OS. + * + * Return: None + */ +static void mpi3mr_remove_device_by_sas_address(struct mpi3mr_ioc *mrioc, + u64 sas_address, struct mpi3mr_hba_port *hba_port) +{ + struct mpi3mr_tgt_dev *tgtdev = NULL; + unsigned long flags; + u8 was_on_tgtdev_list = 0; + + if (!hba_port) + return; + + spin_lock_irqsave(&mrioc->tgtdev_lock, flags); + tgtdev = __mpi3mr_get_tgtdev_by_addr(mrioc, + sas_address, hba_port); + if (tgtdev) { + if (!list_empty(&tgtdev->list)) { + list_del_init(&tgtdev->list); + was_on_tgtdev_list = 1; + mpi3mr_tgtdev_put(tgtdev); + } + } + spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags); + if (was_on_tgtdev_list) { + if (tgtdev->host_exposed) + mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); + mpi3mr_tgtdev_put(tgtdev); + } +} + /** * mpi3mr_expander_find_by_sas_address - sas expander search * @mrioc: Adapter instance reference @@ -378,6 +417,34 @@ static void mpi3mr_add_phy_to_an_existing_port(struct mpi3mr_ioc *mrioc, } } +/** + * mpi3mr_delete_sas_port - helper function to removing a port + * @mrioc: Adapter instance reference + * @mr_sas_port: Internal Port object + * + * Return: None. + */ +static void mpi3mr_delete_sas_port(struct mpi3mr_ioc *mrioc, + struct mpi3mr_sas_port *mr_sas_port) +{ + u64 sas_address = mr_sas_port->remote_identify.sas_address; + struct mpi3mr_hba_port *hba_port = mr_sas_port->hba_port; + enum sas_device_type device_type = + mr_sas_port->remote_identify.device_type; + + dev_info(&mr_sas_port->port->dev, + "remove: sas_address(0x%016llx)\n", + (unsigned long long) sas_address); + + if (device_type == SAS_END_DEVICE) + mpi3mr_remove_device_by_sas_address(mrioc, sas_address, + hba_port); + + else if (device_type == SAS_EDGE_EXPANDER_DEVICE || + device_type == SAS_FANOUT_EXPANDER_DEVICE) + mpi3mr_expander_remove(mrioc, sas_address, hba_port); +} + /** * mpi3mr_del_phy_from_an_existing_port - del phy from a port * @mrioc: Adapter instance reference @@ -401,8 +468,12 @@ static void mpi3mr_del_phy_from_an_existing_port(struct mpi3mr_ioc *mrioc, port_siblings) { if (srch_phy != mr_sas_phy) continue; - mpi3mr_delete_sas_phy(mrioc, mr_sas_port, - mr_sas_phy); + if ((mr_sas_port->num_phys == 1) && + !mrioc->reset_in_progress) + mpi3mr_delete_sas_port(mrioc, mr_sas_port); + else + mpi3mr_delete_sas_phy(mrioc, mr_sas_port, + mr_sas_phy); return; } } @@ -1231,3 +1302,324 @@ static void mpi3mr_sas_port_remove(struct mpi3mr_ioc *mrioc, u64 sas_address, kfree(mr_sas_port); } + +/** + * mpi3mr_expander_node_add - insert an expander to the list. + * @mrioc: Adapter instance reference + * @sas_expander: Expander sas node + * Context: This function will acquire sas_node_lock. + * + * Adding new object to the ioc->sas_expander_list. + * + * Return: None. + */ +static void mpi3mr_expander_node_add(struct mpi3mr_ioc *mrioc, + struct mpi3mr_sas_node *sas_expander) +{ + unsigned long flags; + + spin_lock_irqsave(&mrioc->sas_node_lock, flags); + list_add_tail(&sas_expander->list, &mrioc->sas_expander_list); + spin_unlock_irqrestore(&mrioc->sas_node_lock, flags); +} + +/** + * mpi3mr_expander_add - Create expander object + * @mrioc: Adapter instance reference + * @handle: Expander firmware device handle + * + * This function creating expander object, stored in + * sas_expander_list and expose it to the SAS transport + * layer. + * + * Return: 0 for success, non-zero for failure. + */ +int mpi3mr_expander_add(struct mpi3mr_ioc *mrioc, u16 handle) +{ + struct mpi3mr_sas_node *sas_expander; + struct mpi3mr_enclosure_node *enclosure_dev; + struct mpi3_sas_expander_page0 expander_pg0; + struct mpi3_sas_expander_page1 expander_pg1; + u16 ioc_status, parent_handle, temp_handle; + u64 sas_address, sas_address_parent = 0; + int i; + unsigned long flags; + u8 port_id, link_rate; + struct mpi3mr_sas_port *mr_sas_port = NULL; + struct mpi3mr_hba_port *hba_port; + u32 phynum_handle; + int rc = 0; + + if (!handle) + return -1; + + if (mrioc->reset_in_progress) + return -1; + + if ((mpi3mr_cfg_get_sas_exp_pg0(mrioc, &ioc_status, &expander_pg0, + sizeof(expander_pg0), MPI3_SAS_EXPAND_PGAD_FORM_HANDLE, handle))) { + ioc_err(mrioc, "failure at %s:%d/%s()!\n", + __FILE__, __LINE__, __func__); + return -1; + } + + if (ioc_status != MPI3_IOCSTATUS_SUCCESS) { + ioc_err(mrioc, "failure at %s:%d/%s()!\n", + __FILE__, __LINE__, __func__); + return -1; + } + + parent_handle = le16_to_cpu(expander_pg0.parent_dev_handle); + if (mpi3mr_get_sas_address(mrioc, parent_handle, &sas_address_parent) + != 0) { + ioc_err(mrioc, "failure at %s:%d/%s()!\n", + __FILE__, __LINE__, __func__); + return -1; + } + + port_id = expander_pg0.io_unit_port; + hba_port = mpi3mr_get_hba_port_by_id(mrioc, port_id); + if (!hba_port) { + ioc_err(mrioc, "failure at %s:%d/%s()!\n", + __FILE__, __LINE__, __func__); + return -1; + } + + if (sas_address_parent != mrioc->sas_hba.sas_address) { + spin_lock_irqsave(&mrioc->sas_node_lock, flags); + sas_expander = + mpi3mr_expander_find_by_sas_address(mrioc, + sas_address_parent, hba_port); + spin_unlock_irqrestore(&mrioc->sas_node_lock, flags); + if (!sas_expander) { + rc = mpi3mr_expander_add(mrioc, parent_handle); + if (rc != 0) + return rc; + } else { + /* + * When there is a parent expander present, update it's + * phys where child expander is connected with the link + * speed, attached dev handle and sas address. + */ + for (i = 0 ; i < sas_expander->num_phys ; i++) { + phynum_handle = + (i << MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT) | + parent_handle; + if (mpi3mr_cfg_get_sas_exp_pg1(mrioc, + &ioc_status, &expander_pg1, + sizeof(expander_pg1), + MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM, + phynum_handle)) { + ioc_err(mrioc, "failure at %s:%d/%s()!\n", + __FILE__, __LINE__, __func__); + rc = -1; + return rc; + } + if (ioc_status != MPI3_IOCSTATUS_SUCCESS) { + ioc_err(mrioc, "failure at %s:%d/%s()!\n", + __FILE__, __LINE__, __func__); + rc = -1; + return rc; + } + temp_handle = le16_to_cpu( + expander_pg1.attached_dev_handle); + if (temp_handle != handle) + continue; + link_rate = (expander_pg1.negotiated_link_rate & + MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >> + MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT; + mpi3mr_update_links(mrioc, sas_address_parent, + handle, i, link_rate, hba_port); + } + } + } + + spin_lock_irqsave(&mrioc->sas_node_lock, flags); + sas_address = le64_to_cpu(expander_pg0.sas_address); + sas_expander = mpi3mr_expander_find_by_sas_address(mrioc, + sas_address, hba_port); + spin_unlock_irqrestore(&mrioc->sas_node_lock, flags); + + if (sas_expander) + return 0; + + sas_expander = kzalloc(sizeof(struct mpi3mr_sas_node), + GFP_KERNEL); + if (!sas_expander) + return -1; + + sas_expander->handle = handle; + sas_expander->num_phys = expander_pg0.num_phys; + sas_expander->sas_address_parent = sas_address_parent; + sas_expander->sas_address = sas_address; + sas_expander->hba_port = hba_port; + + ioc_info(mrioc, + "expander_add: handle(0x%04x), parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n", + handle, parent_handle, (unsigned long long) + sas_expander->sas_address, sas_expander->num_phys); + + if (!sas_expander->num_phys) { + rc = -1; + goto out_fail; + } + sas_expander->phy = kcalloc(sas_expander->num_phys, + sizeof(struct mpi3mr_sas_phy), GFP_KERNEL); + if (!sas_expander->phy) { + rc = -1; + goto out_fail; + } + + INIT_LIST_HEAD(&sas_expander->sas_port_list); + mr_sas_port = mpi3mr_sas_port_add(mrioc, handle, sas_address_parent, + sas_expander->hba_port); + if (!mr_sas_port) { + ioc_err(mrioc, "failure at %s:%d/%s()!\n", + __FILE__, __LINE__, __func__); + rc = -1; + goto out_fail; + } + sas_expander->parent_dev = &mr_sas_port->rphy->dev; + sas_expander->rphy = mr_sas_port->rphy; + + for (i = 0 ; i < sas_expander->num_phys ; i++) { + phynum_handle = (i << MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT) | + handle; + if (mpi3mr_cfg_get_sas_exp_pg1(mrioc, &ioc_status, + &expander_pg1, sizeof(expander_pg1), + MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM, + phynum_handle)) { + ioc_err(mrioc, "failure at %s:%d/%s()!\n", + __FILE__, __LINE__, __func__); + rc = -1; + goto out_fail; + } + if (ioc_status != MPI3_IOCSTATUS_SUCCESS) { + ioc_err(mrioc, "failure at %s:%d/%s()!\n", + __FILE__, __LINE__, __func__); + rc = -1; + goto out_fail; + } + + sas_expander->phy[i].handle = handle; + sas_expander->phy[i].phy_id = i; + sas_expander->phy[i].hba_port = hba_port; + + if ((mpi3mr_add_expander_phy(mrioc, &sas_expander->phy[i], + expander_pg1, sas_expander->parent_dev))) { + ioc_err(mrioc, "failure at %s:%d/%s()!\n", + __FILE__, __LINE__, __func__); + rc = -1; + goto out_fail; + } + } + + if (sas_expander->enclosure_handle) { + enclosure_dev = + mpi3mr_enclosure_find_by_handle(mrioc, + sas_expander->enclosure_handle); + if (enclosure_dev) + sas_expander->enclosure_logical_id = le64_to_cpu( + enclosure_dev->pg0.enclosure_logical_id); + } + + mpi3mr_expander_node_add(mrioc, sas_expander); + return 0; + +out_fail: + + if (mr_sas_port) + mpi3mr_sas_port_remove(mrioc, + sas_expander->sas_address, + sas_address_parent, sas_expander->hba_port); + kfree(sas_expander->phy); + kfree(sas_expander); + return rc; +} + +/** + * mpi3mr_expander_node_remove - recursive removal of expander. + * @mrioc: Adapter instance reference + * @sas_expander: Expander device object + * + * Removes expander object and freeing associated memory from + * the sas_expander_list and removes the same from SAS TL, if + * one of the attached device is an expander then it recursively + * removes the expander device too. + * + * Return nothing. + */ +static void mpi3mr_expander_node_remove(struct mpi3mr_ioc *mrioc, + struct mpi3mr_sas_node *sas_expander) +{ + struct mpi3mr_sas_port *mr_sas_port, *next; + unsigned long flags; + u8 port_id; + + /* remove sibling ports attached to this expander */ + list_for_each_entry_safe(mr_sas_port, next, + &sas_expander->sas_port_list, port_list) { + if (mrioc->reset_in_progress) + return; + if (mr_sas_port->remote_identify.device_type == + SAS_END_DEVICE) + mpi3mr_remove_device_by_sas_address(mrioc, + mr_sas_port->remote_identify.sas_address, + mr_sas_port->hba_port); + else if (mr_sas_port->remote_identify.device_type == + SAS_EDGE_EXPANDER_DEVICE || + mr_sas_port->remote_identify.device_type == + SAS_FANOUT_EXPANDER_DEVICE) + mpi3mr_expander_remove(mrioc, + mr_sas_port->remote_identify.sas_address, + mr_sas_port->hba_port); + } + + port_id = sas_expander->hba_port->port_id; + mpi3mr_sas_port_remove(mrioc, sas_expander->sas_address, + sas_expander->sas_address_parent, sas_expander->hba_port); + + ioc_info(mrioc, "expander_remove: handle(0x%04x), sas_addr(0x%016llx), port:%d\n", + sas_expander->handle, (unsigned long long) + sas_expander->sas_address, port_id); + + spin_lock_irqsave(&mrioc->sas_node_lock, flags); + list_del(&sas_expander->list); + spin_unlock_irqrestore(&mrioc->sas_node_lock, flags); + + kfree(sas_expander->phy); + kfree(sas_expander); +} + +/** + * mpi3mr_expander_remove - Remove expander object + * @mrioc: Adapter instance reference + * @sas_address: Remove expander sas_address + * @hba_port: HBA port reference + * + * This function remove expander object, stored in + * mrioc->sas_expander_list and removes it from the SAS TL by + * calling mpi3mr_expander_node_remove(). + * + * Return: None + */ +void mpi3mr_expander_remove(struct mpi3mr_ioc *mrioc, u64 sas_address, + struct mpi3mr_hba_port *hba_port) +{ + struct mpi3mr_sas_node *sas_expander; + unsigned long flags; + + if (mrioc->reset_in_progress) + return; + + if (!hba_port) + return; + + spin_lock_irqsave(&mrioc->sas_node_lock, flags); + sas_expander = mpi3mr_expander_find_by_sas_address(mrioc, sas_address, + hba_port); + spin_unlock_irqrestore(&mrioc->sas_node_lock, flags); + if (sas_expander) + mpi3mr_expander_node_remove(mrioc, sas_expander); + +}