From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f180.google.com (mail-pf0-f180.google.com [209.85.192.180]) by dpdk.org (Postfix) with ESMTP id 636A29190 for ; Thu, 14 Jan 2016 14:29:09 +0100 (CET) Received: by mail-pf0-f180.google.com with SMTP id n128so99904136pfn.3 for ; Thu, 14 Jan 2016 05:29:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mvista-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=23OVUfsA9TXPjmEFBrdCSkv68oWnZxzwYaimY/Tb/Lg=; b=jcymyR6+3NryUKBSqoN4re4XvaER7BpDp2qCELhIsM93TEYMzdJgR5T9bzGFtoM4cG 4uVAwpI/s/b1CP8Ym/e02Evio3g4JZfOVKDW+dYCajgY9fsO2KjzM84y4+iq6bW42iTD UkNvhzEpWDjdCWULa0zp9VKCO9aRlwUjjXQRJPzCNtswgaL0aqji0O6tGflfAQPjGmge duF6Hgz2rmbdfgZfy8mWEO9lAcHlYxGSde+fqUckbvy1vXFomlzAOMGbNi226u+rrhh6 j90ZcU6Ms2nRk0qGL7bhNxTfxfphNqopsaM4aGY5pw8H9STFp1pJq7uQK8CQQhrNdGPO OElw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=23OVUfsA9TXPjmEFBrdCSkv68oWnZxzwYaimY/Tb/Lg=; b=RyT88ZLOOtgMvLqIiLP1ZLGRKTB3Pl2AgvQkauWWQbekhycsZ4m2Uh+841MFxtg5qW NBh4GAkZ54OcTaPFIKd3ZkpdUMyqpGChxnaSaB1FLt/uTMPQRdoT+00a9XCLG6cX4lop lhxT+frv7ePgvz0rglWbfj8g5ApXEMsCq9XpdCEap7FA0wOjCzCJN3i9KPLR0nrZthri XiCubCkbu5mWuGw9Rjx9c6Vht0dq/VPKWBroSiN6aj0RZ15DdHiH+NheOYKVPHkllSeH WbFEsGYGGRIAYhy6meqdZ7EyhmiCg6v2I1WCzbq3V3AQomq0O7rmYAKh6X3N+Ei5pCdG rYkA== X-Gm-Message-State: ALoCoQnJNWVEDbVxOsaUSFkgBtWhE7iLInh4ZI3hYnSvc25VmwnNOGsognfoMBxibqmmqaNrBnWHroL20XGoyk1txFukG6VikQ== X-Received: by 10.98.75.143 with SMTP id d15mr5934577pfj.96.1452778148716; Thu, 14 Jan 2016 05:29:08 -0800 (PST) Received: from santosh-Latitude-E5530-non-vPro.mvista.com ([111.93.218.67]) by smtp.gmail.com with ESMTPSA id v71sm9438472pfi.91.2016.01.14.05.29.05 (version=TLS1_1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 14 Jan 2016 05:29:07 -0800 (PST) From: Santosh Shukla To: dev@dpdk.org Date: Thu, 14 Jan 2016 18:58:30 +0530 Message-Id: <1452778117-30178-8-git-send-email-sshukla@mvista.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1452778117-30178-1-git-send-email-sshukla@mvista.com> References: <1452778117-30178-1-git-send-email-sshukla@mvista.com> Cc: Rakesh Krishnamurthy , Rizwan Ansari Subject: [dpdk-dev] [PATCH v4 07/14] virtio: vfio: add api support to rd/wr ioport bar X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Jan 2016 13:29:09 -0000 For vfio case - Use pread/pwrite api to access virtio ioport space. Signed-off-by: Santosh Shukla Signed-off-by: Rizwan Ansari Signed-off-by: Rakesh Krishnamurthy --- v3->v4: - Corrected debug error message for oub_ class of apis - renamed file from virtio_vfio.h to virtio_vfio_rw.h - Removed #ifdef , #else clutter so that now no #else condition to handle for! this file will work for all the arch which is using vfio interface. drivers/net/virtio/virtio_vfio_rw.h | 107 +++++++++++++++++++++++++++++++++++ 1 file changed, 107 insertions(+) create mode 100644 drivers/net/virtio/virtio_vfio_rw.h diff --git a/drivers/net/virtio/virtio_vfio_rw.h b/drivers/net/virtio/virtio_vfio_rw.h new file mode 100644 index 0000000..80a67f4 --- /dev/null +++ b/drivers/net/virtio/virtio_vfio_rw.h @@ -0,0 +1,107 @@ +/* + * BSD LICENSE + * + * Copyright(c) 2016 Cavium Networks. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ +#ifndef _VIRTIO_VFIO_RW_H_ +#define _VIRTIO_VFIO_RW_H_ + +#if defined(RTE_EAL_VFIO) && defined(RTE_LIBRTE_EAL_LINUXAPP) + +#include +#include +#include "virtio_logs.h" + +/* vfio rd/rw virtio apis */ +static inline void ioport_inb(const struct rte_pci_device *pci_dev, + uint8_t reg, uint8_t *val) +{ + if (rte_eal_pci_read_bar(pci_dev, (uint8_t *)val, sizeof(uint8_t), reg, + 0) <= 0) { + PMD_DRV_LOG(ERR, "Can't read from PCI bar space"); + return; + } +} + +static inline void ioport_inw(const struct rte_pci_device *pci_dev, + uint16_t reg, uint16_t *val) +{ + if (rte_eal_pci_read_bar(pci_dev, (uint16_t *)val, sizeof(uint16_t), + reg, 0) <= 0) { + PMD_DRV_LOG(ERR, "Can't read from PCI bar space"); + return; + } +} + +static inline void ioport_inl(const struct rte_pci_device *pci_dev, + uint32_t reg, uint32_t *val) +{ + if (rte_eal_pci_read_bar(pci_dev, (uint32_t *)val, sizeof(uint32_t), + reg, 0) <= 0) { + PMD_DRV_LOG(ERR, "Can't read from PCI bar space"); + return; + } +} + +static inline void ioport_outb_p(const struct rte_pci_device *pci_dev, + uint8_t reg, uint8_t val) +{ + if (rte_eal_pci_write_bar(pci_dev, (uint8_t *)&val, sizeof(uint8_t), + reg, 0) <= 0) { + PMD_DRV_LOG(ERR, "Can't write to PCI bar space"); + return; + } +} + + +static inline void ioport_outw_p(const struct rte_pci_device *pci_dev, + uint16_t reg, uint16_t val) +{ + if (rte_eal_pci_write_bar(pci_dev, (uint16_t *)&val, sizeof(uint16_t), + reg, 0) <= 0) { + PMD_DRV_LOG(ERR, "Can't write to PCI bar space"); + return; + } +} + + +static inline void ioport_outl_p(const struct rte_pci_device *pci_dev, + uint32_t reg, uint32_t val) +{ + if (rte_eal_pci_write_bar(pci_dev, (uint32_t *)&val, sizeof(uint32_t), + reg, 0) <= 0) { + PMD_DRV_LOG(ERR, "Can't write to PCI bar space"); + return; + } +} + +#endif /* RTE_EAL_VFIO && RTE_XX_EAL_LINUXAPP */ +#endif /* _VIRTIO_VFIO_RW_H_ */ -- 1.7.9.5