From mboxrd@z Thu Jan 1 00:00:00 1970 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 DE200C4332F for ; Tue, 8 Mar 2022 12:36:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346981AbiCHMhO (ORCPT ); Tue, 8 Mar 2022 07:37:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34734 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346901AbiCHMhE (ORCPT ); Tue, 8 Mar 2022 07:37:04 -0500 Received: from out30-132.freemail.mail.aliyun.com (out30-132.freemail.mail.aliyun.com [115.124.30.132]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0531147057; Tue, 8 Mar 2022 04:35:57 -0800 (PST) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R221e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04423;MF=xuanzhuo@linux.alibaba.com;NM=1;PH=DS;RN=34;SR=0;TI=SMTPD_---0V6eQtax_1646742951; Received: from localhost(mailfrom:xuanzhuo@linux.alibaba.com fp:SMTPD_---0V6eQtax_1646742951) by smtp.aliyun-inc.com(127.0.0.1); Tue, 08 Mar 2022 20:35:52 +0800 From: Xuan Zhuo To: virtualization@lists.linux-foundation.org, netdev@vger.kernel.org Cc: Jeff Dike , Richard Weinberger , Anton Ivanov , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Hans de Goede , Mark Gross , Vadim Pasternak , Bjorn Andersson , Mathieu Poirier , Cornelia Huck , Halil Pasic , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , Alexander Gordeev , Sven Schnelle , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Johannes Berg , Vincent Whitchurch , Xuan Zhuo , linux-um@lists.infradead.org, platform-driver-x86@vger.kernel.org, linux-remoteproc@vger.kernel.org, linux-s390@vger.kernel.org, kvm@vger.kernel.org, bpf@vger.kernel.org Subject: [PATCH v7 15/26] virtio_pci: queue_reset: update struct virtio_pci_common_cfg and option functions Date: Tue, 8 Mar 2022 20:35:07 +0800 Message-Id: <20220308123518.33800-16-xuanzhuo@linux.alibaba.com> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20220308123518.33800-1-xuanzhuo@linux.alibaba.com> References: <20220308123518.33800-1-xuanzhuo@linux.alibaba.com> MIME-Version: 1.0 X-Git-Hash: f06b131dbfed Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org Add queue_reset in virtio_pci_common_cfg, and add related operation functions. For not breaks uABI, add a new struct virtio_pci_common_cfg_reset. Signed-off-by: Xuan Zhuo --- drivers/virtio/virtio_pci_modern_dev.c | 36 ++++++++++++++++++++++++++ include/linux/virtio_pci_modern.h | 2 ++ include/uapi/linux/virtio_pci.h | 7 +++++ 3 files changed, 45 insertions(+) diff --git a/drivers/virtio/virtio_pci_modern_dev.c b/drivers/virtio/virtio_pci_modern_dev.c index e8b3ff2b9fbc..8c74b00bc511 100644 --- a/drivers/virtio/virtio_pci_modern_dev.c +++ b/drivers/virtio/virtio_pci_modern_dev.c @@ -3,6 +3,7 @@ #include #include #include +#include /* * vp_modern_map_capability - map a part of virtio pci capability @@ -463,6 +464,41 @@ void vp_modern_set_status(struct virtio_pci_modern_device *mdev, } EXPORT_SYMBOL_GPL(vp_modern_set_status); +/* + * vp_modern_get_queue_reset - get the queue reset status + * @mdev: the modern virtio-pci device + * @index: queue index + */ +int vp_modern_get_queue_reset(struct virtio_pci_modern_device *mdev, u16 index) +{ + struct virtio_pci_common_cfg_reset __iomem *cfg; + + cfg = (struct virtio_pci_common_cfg_reset __iomem *)mdev->common; + + vp_iowrite16(index, &cfg->cfg.queue_select); + return vp_ioread16(&cfg->queue_reset); +} +EXPORT_SYMBOL_GPL(vp_modern_get_queue_reset); + +/* + * vp_modern_set_queue_reset - reset the queue + * @mdev: the modern virtio-pci device + * @index: queue index + */ +void vp_modern_set_queue_reset(struct virtio_pci_modern_device *mdev, u16 index) +{ + struct virtio_pci_common_cfg_reset __iomem *cfg; + + cfg = (struct virtio_pci_common_cfg_reset __iomem *)mdev->common; + + vp_iowrite16(index, &cfg->cfg.queue_select); + vp_iowrite16(1, &cfg->queue_reset); + + while (vp_ioread16(&cfg->queue_reset) != 1) + msleep(1); +} +EXPORT_SYMBOL_GPL(vp_modern_set_queue_reset); + /* * vp_modern_queue_vector - set the MSIX vector for a specific virtqueue * @mdev: the modern virtio-pci device diff --git a/include/linux/virtio_pci_modern.h b/include/linux/virtio_pci_modern.h index eb2bd9b4077d..cc4154dd7b28 100644 --- a/include/linux/virtio_pci_modern.h +++ b/include/linux/virtio_pci_modern.h @@ -106,4 +106,6 @@ void __iomem * vp_modern_map_vq_notify(struct virtio_pci_modern_device *mdev, u16 index, resource_size_t *pa); int vp_modern_probe(struct virtio_pci_modern_device *mdev); void vp_modern_remove(struct virtio_pci_modern_device *mdev); +int vp_modern_get_queue_reset(struct virtio_pci_modern_device *mdev, u16 index); +void vp_modern_set_queue_reset(struct virtio_pci_modern_device *mdev, u16 index); #endif diff --git a/include/uapi/linux/virtio_pci.h b/include/uapi/linux/virtio_pci.h index 22bec9bd0dfc..d9462efd6ce8 100644 --- a/include/uapi/linux/virtio_pci.h +++ b/include/uapi/linux/virtio_pci.h @@ -173,6 +173,13 @@ struct virtio_pci_common_cfg_notify { __le16 padding; }; +struct virtio_pci_common_cfg_reset { + struct virtio_pci_common_cfg cfg; + + __le16 queue_notify_data; /* read-write */ + __le16 queue_reset; /* read-write */ +}; + /* Fields in VIRTIO_PCI_CAP_PCI_CFG: */ struct virtio_pci_cfg_cap { struct virtio_pci_cap cap; -- 2.31.0 From mboxrd@z Thu Jan 1 00:00:00 1970 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 smtp4.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8062BC41535 for ; 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Tue, 8 Mar 2022 12:35:58 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id G7Yjrljqx6zA for ; Tue, 8 Mar 2022 12:35:57 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from out30-45.freemail.mail.aliyun.com (out30-45.freemail.mail.aliyun.com [115.124.30.45]) by smtp1.osuosl.org (Postfix) with ESMTPS id 8B3F884213 for ; Tue, 8 Mar 2022 12:35:57 +0000 (UTC) X-Alimail-AntiSpam: AC=PASS; BC=-1|-1; BR=01201311R221e4; CH=green; DM=||false|; DS=||; FP=0|-1|-1|-1|0|-1|-1|-1; HT=e01e04423; MF=xuanzhuo@linux.alibaba.com; NM=1; PH=DS; RN=34; SR=0; TI=SMTPD_---0V6eQtax_1646742951; Received: from localhost(mailfrom:xuanzhuo@linux.alibaba.com fp:SMTPD_---0V6eQtax_1646742951) by smtp.aliyun-inc.com(127.0.0.1); Tue, 08 Mar 2022 20:35:52 +0800 From: Xuan Zhuo To: virtualization@lists.linux-foundation.org, netdev@vger.kernel.org Subject: [PATCH v7 15/26] virtio_pci: queue_reset: update struct virtio_pci_common_cfg and option functions Date: Tue, 8 Mar 2022 20:35:07 +0800 Message-Id: <20220308123518.33800-16-xuanzhuo@linux.alibaba.com> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20220308123518.33800-1-xuanzhuo@linux.alibaba.com> References: <20220308123518.33800-1-xuanzhuo@linux.alibaba.com> MIME-Version: 1.0 X-Git-Hash: f06b131dbfed Cc: Vadim Pasternak , "Michael S. Tsirkin" , linux-remoteproc@vger.kernel.org, Alexei Starovoitov , Bjorn Andersson , Alexander Gordeev , Anton Ivanov , Johannes Berg , Daniel Borkmann , Richard Weinberger , Vincent Whitchurch , John Fastabend , Halil Pasic , Jakub Kicinski , Heiko Carstens , Jesper Dangaard Brouer , Vasily Gorbik , linux-s390@vger.kernel.org, Jeff Dike , linux-um@lists.infradead.org, Mark Gross , Hans de Goede , kvm@vger.kernel.org, platform-driver-x86@vger.kernel.org, Mathieu Poirier , Cornelia Huck , Sven Schnelle , bpf@vger.kernel.org, "David S. Miller" X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" Add queue_reset in virtio_pci_common_cfg, and add related operation functions. For not breaks uABI, add a new struct virtio_pci_common_cfg_reset. Signed-off-by: Xuan Zhuo --- drivers/virtio/virtio_pci_modern_dev.c | 36 ++++++++++++++++++++++++++ include/linux/virtio_pci_modern.h | 2 ++ include/uapi/linux/virtio_pci.h | 7 +++++ 3 files changed, 45 insertions(+) diff --git a/drivers/virtio/virtio_pci_modern_dev.c b/drivers/virtio/virtio_pci_modern_dev.c index e8b3ff2b9fbc..8c74b00bc511 100644 --- a/drivers/virtio/virtio_pci_modern_dev.c +++ b/drivers/virtio/virtio_pci_modern_dev.c @@ -3,6 +3,7 @@ #include #include #include +#include /* * vp_modern_map_capability - map a part of virtio pci capability @@ -463,6 +464,41 @@ void vp_modern_set_status(struct virtio_pci_modern_device *mdev, } EXPORT_SYMBOL_GPL(vp_modern_set_status); +/* + * vp_modern_get_queue_reset - get the queue reset status + * @mdev: the modern virtio-pci device + * @index: queue index + */ +int vp_modern_get_queue_reset(struct virtio_pci_modern_device *mdev, u16 index) +{ + struct virtio_pci_common_cfg_reset __iomem *cfg; + + cfg = (struct virtio_pci_common_cfg_reset __iomem *)mdev->common; + + vp_iowrite16(index, &cfg->cfg.queue_select); + return vp_ioread16(&cfg->queue_reset); +} +EXPORT_SYMBOL_GPL(vp_modern_get_queue_reset); + +/* + * vp_modern_set_queue_reset - reset the queue + * @mdev: the modern virtio-pci device + * @index: queue index + */ +void vp_modern_set_queue_reset(struct virtio_pci_modern_device *mdev, u16 index) +{ + struct virtio_pci_common_cfg_reset __iomem *cfg; + + cfg = (struct virtio_pci_common_cfg_reset __iomem *)mdev->common; + + vp_iowrite16(index, &cfg->cfg.queue_select); + vp_iowrite16(1, &cfg->queue_reset); + + while (vp_ioread16(&cfg->queue_reset) != 1) + msleep(1); +} +EXPORT_SYMBOL_GPL(vp_modern_set_queue_reset); + /* * vp_modern_queue_vector - set the MSIX vector for a specific virtqueue * @mdev: the modern virtio-pci device diff --git a/include/linux/virtio_pci_modern.h b/include/linux/virtio_pci_modern.h index eb2bd9b4077d..cc4154dd7b28 100644 --- a/include/linux/virtio_pci_modern.h +++ b/include/linux/virtio_pci_modern.h @@ -106,4 +106,6 @@ void __iomem * vp_modern_map_vq_notify(struct virtio_pci_modern_device *mdev, u16 index, resource_size_t *pa); int vp_modern_probe(struct virtio_pci_modern_device *mdev); void vp_modern_remove(struct virtio_pci_modern_device *mdev); +int vp_modern_get_queue_reset(struct virtio_pci_modern_device *mdev, u16 index); +void vp_modern_set_queue_reset(struct virtio_pci_modern_device *mdev, u16 index); #endif diff --git a/include/uapi/linux/virtio_pci.h b/include/uapi/linux/virtio_pci.h index 22bec9bd0dfc..d9462efd6ce8 100644 --- a/include/uapi/linux/virtio_pci.h +++ b/include/uapi/linux/virtio_pci.h @@ -173,6 +173,13 @@ struct virtio_pci_common_cfg_notify { __le16 padding; }; +struct virtio_pci_common_cfg_reset { + struct virtio_pci_common_cfg cfg; + + __le16 queue_notify_data; /* read-write */ + __le16 queue_reset; /* read-write */ +}; + /* Fields in VIRTIO_PCI_CAP_PCI_CFG: */ struct virtio_pci_cfg_cap { struct virtio_pci_cap cap; -- 2.31.0 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from out30-45.freemail.mail.aliyun.com ([115.124.30.45]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nRZ4I-004NU6-5d for linux-um@lists.infradead.org; Tue, 08 Mar 2022 12:36:01 +0000 From: Xuan Zhuo Subject: [PATCH v7 15/26] virtio_pci: queue_reset: update struct virtio_pci_common_cfg and option functions Date: Tue, 8 Mar 2022 20:35:07 +0800 Message-Id: <20220308123518.33800-16-xuanzhuo@linux.alibaba.com> In-Reply-To: <20220308123518.33800-1-xuanzhuo@linux.alibaba.com> References: <20220308123518.33800-1-xuanzhuo@linux.alibaba.com> MIME-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-um" Errors-To: linux-um-bounces+geert=linux-m68k.org@lists.infradead.org To: virtualization@lists.linux-foundation.org, netdev@vger.kernel.org Cc: Jeff Dike , Richard Weinberger , Anton Ivanov , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Hans de Goede , Mark Gross , Vadim Pasternak , Bjorn Andersson , Mathieu Poirier , Cornelia Huck , Halil Pasic , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , Alexander Gordeev , Sven Schnelle , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Johannes Berg , Vincent Whitchurch , Xuan Zhuo , linux-um@lists.infradead.org, platform-driver-x86@vger.kernel.org, linux-remoteproc@vger.kernel.org, linux-s390@vger.kernel.org, kvm@vger.kernel.org, bpf@vger.kernel.org Add queue_reset in virtio_pci_common_cfg, and add related operation functions. For not breaks uABI, add a new struct virtio_pci_common_cfg_reset. Signed-off-by: Xuan Zhuo --- drivers/virtio/virtio_pci_modern_dev.c | 36 ++++++++++++++++++++++++++ include/linux/virtio_pci_modern.h | 2 ++ include/uapi/linux/virtio_pci.h | 7 +++++ 3 files changed, 45 insertions(+) diff --git a/drivers/virtio/virtio_pci_modern_dev.c b/drivers/virtio/virtio_pci_modern_dev.c index e8b3ff2b9fbc..8c74b00bc511 100644 --- a/drivers/virtio/virtio_pci_modern_dev.c +++ b/drivers/virtio/virtio_pci_modern_dev.c @@ -3,6 +3,7 @@ #include #include #include +#include /* * vp_modern_map_capability - map a part of virtio pci capability @@ -463,6 +464,41 @@ void vp_modern_set_status(struct virtio_pci_modern_device *mdev, } EXPORT_SYMBOL_GPL(vp_modern_set_status); +/* + * vp_modern_get_queue_reset - get the queue reset status + * @mdev: the modern virtio-pci device + * @index: queue index + */ +int vp_modern_get_queue_reset(struct virtio_pci_modern_device *mdev, u16 index) +{ + struct virtio_pci_common_cfg_reset __iomem *cfg; + + cfg = (struct virtio_pci_common_cfg_reset __iomem *)mdev->common; + + vp_iowrite16(index, &cfg->cfg.queue_select); + return vp_ioread16(&cfg->queue_reset); +} +EXPORT_SYMBOL_GPL(vp_modern_get_queue_reset); + +/* + * vp_modern_set_queue_reset - reset the queue + * @mdev: the modern virtio-pci device + * @index: queue index + */ +void vp_modern_set_queue_reset(struct virtio_pci_modern_device *mdev, u16 index) +{ + struct virtio_pci_common_cfg_reset __iomem *cfg; + + cfg = (struct virtio_pci_common_cfg_reset __iomem *)mdev->common; + + vp_iowrite16(index, &cfg->cfg.queue_select); + vp_iowrite16(1, &cfg->queue_reset); + + while (vp_ioread16(&cfg->queue_reset) != 1) + msleep(1); +} +EXPORT_SYMBOL_GPL(vp_modern_set_queue_reset); + /* * vp_modern_queue_vector - set the MSIX vector for a specific virtqueue * @mdev: the modern virtio-pci device diff --git a/include/linux/virtio_pci_modern.h b/include/linux/virtio_pci_modern.h index eb2bd9b4077d..cc4154dd7b28 100644 --- a/include/linux/virtio_pci_modern.h +++ b/include/linux/virtio_pci_modern.h @@ -106,4 +106,6 @@ void __iomem * vp_modern_map_vq_notify(struct virtio_pci_modern_device *mdev, u16 index, resource_size_t *pa); int vp_modern_probe(struct virtio_pci_modern_device *mdev); void vp_modern_remove(struct virtio_pci_modern_device *mdev); +int vp_modern_get_queue_reset(struct virtio_pci_modern_device *mdev, u16 index); +void vp_modern_set_queue_reset(struct virtio_pci_modern_device *mdev, u16 index); #endif diff --git a/include/uapi/linux/virtio_pci.h b/include/uapi/linux/virtio_pci.h index 22bec9bd0dfc..d9462efd6ce8 100644 --- a/include/uapi/linux/virtio_pci.h +++ b/include/uapi/linux/virtio_pci.h @@ -173,6 +173,13 @@ struct virtio_pci_common_cfg_notify { __le16 padding; }; +struct virtio_pci_common_cfg_reset { + struct virtio_pci_common_cfg cfg; + + __le16 queue_notify_data; /* read-write */ + __le16 queue_reset; /* read-write */ +}; + /* Fields in VIRTIO_PCI_CAP_PCI_CFG: */ struct virtio_pci_cfg_cap { struct virtio_pci_cap cap; -- 2.31.0 _______________________________________________ linux-um mailing list linux-um@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-um