From: Santosh Shukla <sshukla@mvista.com>
To: dev@dpdk.org
Subject: [dpdk-dev] [PATCH v6 7/8] virtio: extend pci rw api for vfio
Date: Fri, 29 Jan 2016 23:51:56 +0530 [thread overview]
Message-ID: <1454091717-32251-7-git-send-email-sshukla@mvista.com> (raw)
In-Reply-To: <1454091717-32251-1-git-send-email-sshukla@mvista.com>
So far virtio handle rw access for uio / ioport interface,
This patch to extend the support for vfio.
Signed-off-by: Santosh Shukla <sshukla@mvista.com>
---
drivers/net/virtio/virtio_io.h | 2 +-
drivers/net/virtio/virtio_pci.c | 110 ++++++++++++++++++++++++++++++++++-----
2 files changed, 98 insertions(+), 14 deletions(-)
diff --git a/drivers/net/virtio/virtio_io.h b/drivers/net/virtio/virtio_io.h
index bfa1341..ce59e3f 100644
--- a/drivers/net/virtio/virtio_io.h
+++ b/drivers/net/virtio/virtio_io.h
@@ -35,7 +35,7 @@
#define _VIRTIO_IO_H_
#include <rte_common.h>
-#include "virtio_logs.h"
+#include "virtio_vfio_io.h"
#if defined(RTE_ARCH_X86_64) || defined(RTE_ARCH_I686)
diff --git a/drivers/net/virtio/virtio_pci.c b/drivers/net/virtio/virtio_pci.c
index 064f234..71d4a07 100644
--- a/drivers/net/virtio/virtio_pci.c
+++ b/drivers/net/virtio/virtio_pci.c
@@ -37,10 +37,10 @@
#include <fcntl.h>
#endif
-#include "virtio_io.h"
#include "virtio_pci.h"
#include "virtio_logs.h"
#include "virtqueue.h"
+#include "virtio_io.h"
/*
* Following macros are derieved from linux/pci_regs.h, however,
@@ -54,20 +54,104 @@
#define VIRTIO_PCI_REG_ADDR(hw, reg) \
(unsigned short)((hw)->io_base + (reg))
-#define VIRTIO_READ_REG_1(hw, reg) \
- inb((VIRTIO_PCI_REG_ADDR((hw), (reg))))
-#define VIRTIO_WRITE_REG_1(hw, reg, value) \
- outb_p((unsigned char)(value), (VIRTIO_PCI_REG_ADDR((hw), (reg))))
+static inline uint8_t
+virtio_read_reg_1(struct virtio_hw *hw, uint64_t reg_offset)
+{
+ uint8_t ret;
+ struct rte_pci_device *dev;
+
+ dev = hw->dev;
+ if (dev->kdrv == RTE_KDRV_VFIO)
+ vfio_inb(dev, reg_offset, &ret);
+ else
+ ret = inb(VIRTIO_PCI_REG_ADDR(hw, reg_offset));
+
+ return ret;
+}
+
+static inline uint16_t
+virtio_read_reg_2(struct virtio_hw *hw, uint64_t reg_offset)
+{
+ uint16_t ret;
+ struct rte_pci_device *dev;
+
+ dev = hw->dev;
+ if (dev->kdrv == RTE_KDRV_VFIO)
+ vfio_inw(dev, reg_offset, &ret);
+ else
+ ret = inw(VIRTIO_PCI_REG_ADDR(hw, reg_offset));
+
+ return ret;
+}
+
+static inline uint32_t
+virtio_read_reg_4(struct virtio_hw *hw, uint64_t reg_offset)
+{
+ uint32_t ret;
+ struct rte_pci_device *dev;
+
+ dev = hw->dev;
+ if (dev->kdrv == RTE_KDRV_VFIO)
+ vfio_inl(dev, reg_offset, &ret);
+ else
+ ret = inl(VIRTIO_PCI_REG_ADDR(hw, reg_offset));
+
+ return ret;
+}
+
+static inline void
+virtio_write_reg_1(struct virtio_hw *hw, uint64_t reg_offset, uint8_t value)
+{
+ struct rte_pci_device *dev;
+
+ dev = hw->dev;
+ if (dev->kdrv == RTE_KDRV_VFIO)
+ vfio_outb_p(dev, reg_offset, value);
+ else
+ outb_p((unsigned char)value,
+ VIRTIO_PCI_REG_ADDR(hw, reg_offset));
+}
+
+static inline void
+virtio_write_reg_2(struct virtio_hw *hw, uint64_t reg_offset, uint16_t value)
+{
+ struct rte_pci_device *dev;
+
+ dev = hw->dev;
+ if (dev->kdrv == RTE_KDRV_VFIO)
+ vfio_outw_p(dev, reg_offset, value);
+ else
+ outw_p((unsigned short)value,
+ VIRTIO_PCI_REG_ADDR(hw, reg_offset));
+}
+
+static inline void
+virtio_write_reg_4(struct virtio_hw *hw, uint64_t reg_offset, uint32_t value)
+{
+ struct rte_pci_device *dev;
+
+ dev = hw->dev;
+ if (dev->kdrv == RTE_KDRV_VFIO)
+ vfio_outl_p(dev, reg_offset, value);
+ else
+ outl_p((unsigned int)value,
+ VIRTIO_PCI_REG_ADDR(hw, reg_offset));
+}
+
+#define VIRTIO_READ_REG_1(hw, reg) \
+ virtio_read_reg_1((hw), (reg))
+#define VIRTIO_WRITE_REG_1(hw, reg, value) \
+ virtio_write_reg_1((hw), (reg), (value))
-#define VIRTIO_READ_REG_2(hw, reg) \
- inw((VIRTIO_PCI_REG_ADDR((hw), (reg))))
-#define VIRTIO_WRITE_REG_2(hw, reg, value) \
- outw_p((unsigned short)(value), (VIRTIO_PCI_REG_ADDR((hw), (reg))))
+#define VIRTIO_READ_REG_2(hw, reg) \
+ virtio_read_reg_2((hw), (reg))
+#define VIRTIO_WRITE_REG_2(hw, reg, value) \
+ virtio_write_reg_2((hw), (reg), (value))
-#define VIRTIO_READ_REG_4(hw, reg) \
- inl((VIRTIO_PCI_REG_ADDR((hw), (reg))))
-#define VIRTIO_WRITE_REG_4(hw, reg, value) \
- outl_p((unsigned int)(value), (VIRTIO_PCI_REG_ADDR((hw), (reg))))
+#define VIRTIO_READ_REG_4(hw, reg) \
+ virtio_read_reg_4((hw), (reg))
+#define VIRTIO_WRITE_REG_4(hw, reg, value) \
+ virtio_write_reg_4((hw), (reg), (value))
static void
legacy_read_dev_config(struct virtio_hw *hw, uint64_t offset,
--
1.7.9.5
next prev parent reply other threads:[~2016-01-29 18:24 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <0000-cover-letter.patch>
2016-01-29 18:21 ` [dpdk-dev] [PATCH v6 1/8] eal: pci: add api to rd/wr pci bar region Santosh Shukla
2016-01-29 18:21 ` [dpdk-dev] [PATCH v6 2/8] linuxapp/vfio: ignore mapping for ioport region Santosh Shukla
2016-01-29 18:21 ` [dpdk-dev] [PATCH v6 3/8] eal/linux: never check iopl for arm Santosh Shukla
2016-01-29 18:21 ` [dpdk-dev] [PATCH v6 4/8] virtio: Introduce config RTE_VIRTIO_INC_VECTOR Santosh Shukla
2016-01-29 18:21 ` [dpdk-dev] [PATCH v6 5/8] virtio: move io header and api from virtio_pci.h Santosh Shukla
2016-01-29 18:21 ` [dpdk-dev] [PATCH v6 6/8] virtio: add vfio api to rd/wr ioport space Santosh Shukla
2016-02-01 12:48 ` Yuanhan Liu
2016-02-02 4:30 ` Santosh Shukla
2016-02-02 5:19 ` Yuanhan Liu
2016-02-02 6:02 ` Santosh Shukla
2016-01-29 18:21 ` Santosh Shukla [this message]
2016-01-29 18:21 ` [dpdk-dev] [PATCH v6 8/8] virtio: do not parse if interface is vfio Santosh Shukla
2016-02-01 13:48 ` [dpdk-dev] [PATCH v6 1/8] eal: pci: add api to rd/wr pci bar region Yuanhan Liu
2016-02-02 4:14 ` Santosh Shukla
2016-02-02 5:43 ` Yuanhan Liu
2016-02-02 5:50 ` David Marchand
2016-02-02 8:49 ` Yuanhan Liu
2016-02-02 15:51 ` Santosh Shukla
2016-02-02 16:18 ` Santosh Shukla
2016-02-03 9:50 ` Santosh Shukla
2016-02-03 11:50 ` Yuanhan Liu
2016-02-05 17:56 ` David Marchand
2016-02-03 11:43 ` Yuanhan Liu
2016-02-02 7:00 ` Santosh Shukla
2016-02-02 7:01 ` Santosh Shukla
2016-02-08 10:03 ` [dpdk-dev] [PATCH v8 3/4] eal/linux: vfio: ignore mapping for ioport region Santosh Shukla
2016-02-08 10:03 ` [dpdk-dev] [PATCH v8 4/4] eal/linux: vfio: add pci ioport support Santosh Shukla
2016-02-08 14:13 ` Burakov, Anatoly
2016-02-09 9:04 ` David Marchand
2016-02-18 5:25 ` Santosh Shukla
2016-02-18 14:00 ` Thomas Monjalon
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