From: Santosh Shukla <sshukla@mvista.com>
To: dev@dpdk.org
Cc: Rakesh Krishnamurthy <rakeshk@mvista.com>,
Rizwan Ansari <ransari@mvista.com>
Subject: [dpdk-dev] [PATCH v4 07/14] virtio: vfio: add api support to rd/wr ioport bar
Date: Thu, 14 Jan 2016 18:58:30 +0530 [thread overview]
Message-ID: <1452778117-30178-8-git-send-email-sshukla@mvista.com> (raw)
In-Reply-To: <1452778117-30178-1-git-send-email-sshukla@mvista.com>
For vfio case - Use pread/pwrite api to access virtio
ioport space.
Signed-off-by: Santosh Shukla <sshukla@mvista.com>
Signed-off-by: Rizwan Ansari <ransari@mvista.com>
Signed-off-by: Rakesh Krishnamurthy <rakeshk@mvista.com>
---
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 <stdint.h>
+#include <rte_pci.h>
+#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
next prev parent reply other threads:[~2016-01-14 13:29 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-14 13:28 [dpdk-dev] [PATCH v4 00/14] Add virtio support for arm/arm64 Santosh Shukla
2016-01-14 13:28 ` [dpdk-dev] [PATCH v4 01/14] virtio: Introduce config RTE_VIRTIO_INC_VECTOR Santosh Shukla
2016-01-15 6:51 ` Yuanhan Liu
2016-01-16 6:18 ` Santosh Shukla
2016-01-14 13:28 ` [dpdk-dev] [PATCH v4 02/14] config: i686: set RTE_VIRTIO_INC_VECTOR=n Santosh Shukla
2016-01-14 13:28 ` [dpdk-dev] [PATCH v4 03/14] linuxapp: eal: arm: Always return 0 for rte_eal_iopl_init() Santosh Shukla
2016-01-14 13:28 ` [dpdk-dev] [PATCH v4 04/14] linuxapp/vfio: ignore mapping for ioport region Santosh Shukla
2016-01-14 13:28 ` [dpdk-dev] [PATCH v4 05/14] virtio_pci.h: build fix for sys/io.h for non-x86 arch Santosh Shukla
2016-01-14 13:28 ` [dpdk-dev] [PATCH v4 06/14] eal: pci: vfio: add rd/wr func for pci bar space Santosh Shukla
2016-01-15 5:48 ` Yuanhan Liu
2016-01-16 8:06 ` Santosh Shukla
2016-01-14 13:28 ` Santosh Shukla [this message]
2016-01-15 6:03 ` [dpdk-dev] [PATCH v4 07/14] virtio: vfio: add api support to rd/wr ioport bar Yuanhan Liu
2016-01-16 8:53 ` Santosh Shukla
2016-01-14 13:28 ` [dpdk-dev] [PATCH v4 08/14] virtio: pci: extend virtio pci rw api for vfio interface Santosh Shukla
2016-01-15 6:27 ` Yuanhan Liu
2016-01-15 12:43 ` Santosh Shukla
2016-01-15 13:42 ` Santosh Shukla
2016-01-18 6:11 ` Yuanhan Liu
2016-01-18 6:45 ` Santosh Shukla
2016-01-18 7:17 ` Yuanhan Liu
2016-01-18 13:09 ` Santosh Shukla
2016-01-18 6:59 ` Jason Wang
2016-01-18 7:39 ` Santosh Shukla
2016-01-14 13:28 ` [dpdk-dev] [PATCH v4 09/14] virtio: ethdev: check " Santosh Shukla
2016-01-15 6:35 ` Yuanhan Liu
2016-01-15 12:37 ` Santosh Shukla
2016-01-14 13:28 ` [dpdk-dev] [PATCH v4 10/14] virtio: pci: add dummy func definition for in/outb for non-x86 arch Santosh Shukla
2016-01-14 13:28 ` [dpdk-dev] [PATCH v4 11/14] config: armv7/v8: Enable RTE_LIBRTE_VIRTIO_PMD Santosh Shukla
2016-01-15 6:37 ` Yuanhan Liu
2016-01-15 12:45 ` Santosh Shukla
2016-01-14 13:28 ` [dpdk-dev] [PATCH v4 12/14] eal: pci: export pci_[un]map_device Santosh Shukla
2016-01-14 13:28 ` [dpdk-dev] [PATCH v4 13/14] virtio: enable vfio in pmd driver Santosh Shukla
2016-01-14 13:28 ` [dpdk-dev] [PATCH v4 14/14] vfio: Support for no-IOMMU mode Santosh Shukla
2016-01-29 7:27 ` [dpdk-dev] [PATCH v4 00/14] Add virtio support for arm/arm64 Xie, Huawei
2016-01-29 9:19 ` Santosh Shukla
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