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libqos: Added MSI-X support 

Added MSI-X support for qtest PCI.
Added MSI-X support for virtio-pci.
Added MSI-X test case in virtio-blk-test.

Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Marc Marí 2014-09-01 12:07:59 +02:00 committed by Stefan Hajnoczi
parent e11199554c
commit 5836811398
7 changed files with 426 additions and 62 deletions
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111
tests/libqos/pci.c
View File

@ -15,8 +15,6 @@
#include "hw/pci/pci_regs.h"
#include <glib.h>
#include <stdio.h>
void qpci_device_foreach(QPCIBus *bus, int vendor_id, int device_id,
void (*func)(QPCIDevice *dev, int devfn, void *data),
void *data)
@ -75,6 +73,115 @@ void qpci_device_enable(QPCIDevice *dev)
qpci_config_writew(dev, PCI_COMMAND, cmd);
}
uint8_t qpci_find_capability(QPCIDevice *dev, uint8_t id)
{
uint8_t cap;
uint8_t addr = qpci_config_readb(dev, PCI_CAPABILITY_LIST);
do {
cap = qpci_config_readb(dev, addr);
if (cap != id) {
addr = qpci_config_readb(dev, addr + PCI_CAP_LIST_NEXT);
}
} while (cap != id && addr != 0);
return addr;
}
void qpci_msix_enable(QPCIDevice *dev)
{
uint8_t addr;
uint16_t val;
uint32_t table;
uint8_t bir_table;
uint8_t bir_pba;
void *offset;
addr = qpci_find_capability(dev, PCI_CAP_ID_MSIX);
g_assert_cmphex(addr, !=, 0);
val = qpci_config_readw(dev, addr + PCI_MSIX_FLAGS);
qpci_config_writew(dev, addr + PCI_MSIX_FLAGS, val | PCI_MSIX_FLAGS_ENABLE);
table = qpci_config_readl(dev, addr + PCI_MSIX_TABLE);
bir_table = table & PCI_MSIX_FLAGS_BIRMASK;
offset = qpci_iomap(dev, bir_table, NULL);
dev->msix_table = offset + (table & ~PCI_MSIX_FLAGS_BIRMASK);
table = qpci_config_readl(dev, addr + PCI_MSIX_PBA);
bir_pba = table & PCI_MSIX_FLAGS_BIRMASK;
if (bir_pba != bir_table) {
offset = qpci_iomap(dev, bir_pba, NULL);
}
dev->msix_pba = offset + (table & ~PCI_MSIX_FLAGS_BIRMASK);
g_assert(dev->msix_table != NULL);
g_assert(dev->msix_pba != NULL);
dev->msix_enabled = true;
}
void qpci_msix_disable(QPCIDevice *dev)
{
uint8_t addr;
uint16_t val;
g_assert(dev->msix_enabled);
addr = qpci_find_capability(dev, PCI_CAP_ID_MSIX);
g_assert_cmphex(addr, !=, 0);
val = qpci_config_readw(dev, addr + PCI_MSIX_FLAGS);
qpci_config_writew(dev, addr + PCI_MSIX_FLAGS,
val & ~PCI_MSIX_FLAGS_ENABLE);
qpci_iounmap(dev, dev->msix_table);
qpci_iounmap(dev, dev->msix_pba);
dev->msix_enabled = 0;
dev->msix_table = NULL;
dev->msix_pba = NULL;
}
bool qpci_msix_pending(QPCIDevice *dev, uint16_t entry)
{
uint32_t pba_entry;
uint8_t bit_n = entry % 32;
void *addr = dev->msix_pba + (entry / 32) * PCI_MSIX_ENTRY_SIZE / 4;
g_assert(dev->msix_enabled);
pba_entry = qpci_io_readl(dev, addr);
qpci_io_writel(dev, addr, pba_entry & ~(1 << bit_n));
return (pba_entry & (1 << bit_n)) != 0;
}
bool qpci_msix_masked(QPCIDevice *dev, uint16_t entry)
{
uint8_t addr;
uint16_t val;
void *vector_addr = dev->msix_table + (entry * PCI_MSIX_ENTRY_SIZE);
g_assert(dev->msix_enabled);
addr = qpci_find_capability(dev, PCI_CAP_ID_MSIX);
g_assert_cmphex(addr, !=, 0);
val = qpci_config_readw(dev, addr + PCI_MSIX_FLAGS);
if (val & PCI_MSIX_FLAGS_MASKALL) {
return true;
} else {
return (qpci_io_readl(dev, vector_addr + PCI_MSIX_ENTRY_VECTOR_CTRL)
& PCI_MSIX_ENTRY_CTRL_MASKBIT) != 0;
}
}
uint16_t qpci_msix_table_size(QPCIDevice *dev)
{
uint8_t addr;
uint16_t control;
addr = qpci_find_capability(dev, PCI_CAP_ID_MSIX);
g_assert_cmphex(addr, !=, 0);
control = qpci_config_readw(dev, addr + PCI_MSIX_FLAGS);
return (control & PCI_MSIX_FLAGS_QSIZE) + 1;
}
uint8_t qpci_config_readb(QPCIDevice *dev, uint8_t offset)
{
return dev->bus->config_readb(dev->bus, dev->devfn, offset);

10
tests/libqos/pci.h
View File

@ -14,6 +14,7 @@
#define LIBQOS_PCI_H
#include <stdint.h>
#include "libqtest.h"
#define QPCI_DEVFN(dev, fn) (((dev) << 3) | (fn))
@ -49,6 +50,9 @@ struct QPCIDevice
{
QPCIBus *bus;
int devfn;
bool msix_enabled;
void *msix_table;
void *msix_pba;
};
void qpci_device_foreach(QPCIBus *bus, int vendor_id, int device_id,
@ -57,6 +61,12 @@ void qpci_device_foreach(QPCIBus *bus, int vendor_id, int device_id,
QPCIDevice *qpci_device_find(QPCIBus *bus, int devfn);
void qpci_device_enable(QPCIDevice *dev);
uint8_t qpci_find_capability(QPCIDevice *dev, uint8_t id);
void qpci_msix_enable(QPCIDevice *dev);
void qpci_msix_disable(QPCIDevice *dev);
bool qpci_msix_pending(QPCIDevice *dev, uint16_t entry);
bool qpci_msix_masked(QPCIDevice *dev, uint16_t entry);
uint16_t qpci_msix_table_size(QPCIDevice *dev);
uint8_t qpci_config_readb(QPCIDevice *dev, uint8_t offset);
uint16_t qpci_config_readw(QPCIDevice *dev, uint8_t offset);

142
tests/libqos/virtio-pci.c
View File

@ -36,6 +36,8 @@ static QVirtioPCIDevice *qpcidevice_to_qvirtiodevice(QPCIDevice *pdev)
qpci_config_readw(vpcidev->pdev, PCI_SUBSYSTEM_ID);
}
vpcidev->config_msix_entry = -1;
return vpcidev;
}
@ -125,10 +127,45 @@ static void qvirtio_pci_set_status(QVirtioDevice *d, uint8_t status)
qpci_io_writeb(dev->pdev, dev->addr + QVIRTIO_DEVICE_STATUS, status);
}
static uint8_t qvirtio_pci_get_isr_status(QVirtioDevice *d)
static bool qvirtio_pci_get_queue_isr_status(QVirtioDevice *d, QVirtQueue *vq)
{
QVirtioPCIDevice *dev = (QVirtioPCIDevice *)d;
return qpci_io_readb(dev->pdev, dev->addr + QVIRTIO_ISR_STATUS);
QVirtQueuePCI *vqpci = (QVirtQueuePCI *)vq;
uint32_t data;
if (dev->pdev->msix_enabled) {
g_assert_cmpint(vqpci->msix_entry, !=, -1);
if (qpci_msix_masked(dev->pdev, vqpci->msix_entry)) {
/* No ISR checking should be done if masked, but read anyway */
return qpci_msix_pending(dev->pdev, vqpci->msix_entry);
} else {
data = readl(vqpci->msix_addr);
writel(vqpci->msix_addr, 0);
return data == vqpci->msix_data;
}
} else {
return qpci_io_readb(dev->pdev, dev->addr + QVIRTIO_ISR_STATUS) & 1;
}
}
static bool qvirtio_pci_get_config_isr_status(QVirtioDevice *d)
{
QVirtioPCIDevice *dev = (QVirtioPCIDevice *)d;
uint32_t data;
if (dev->pdev->msix_enabled) {
g_assert_cmpint(dev->config_msix_entry, !=, -1);
if (qpci_msix_masked(dev->pdev, dev->config_msix_entry)) {
/* No ISR checking should be done if masked, but read anyway */
return qpci_msix_pending(dev->pdev, dev->config_msix_entry);
} else {
data = readl(dev->config_msix_addr);
writel(dev->config_msix_addr, 0);
return data == dev->config_msix_data;
}
} else {
return qpci_io_readb(dev->pdev, dev->addr + QVIRTIO_ISR_STATUS) & 2;
}
}
static void qvirtio_pci_queue_select(QVirtioDevice *d, uint16_t index)
@ -154,32 +191,34 @@ static QVirtQueue *qvirtio_pci_virtqueue_setup(QVirtioDevice *d,
{
uint32_t feat;
uint64_t addr;
QVirtQueue *vq;
QVirtQueuePCI *vqpci;
vq = g_malloc0(sizeof(*vq));
vqpci = g_malloc0(sizeof(*vqpci));
feat = qvirtio_pci_get_guest_features(d);
qvirtio_pci_queue_select(d, index);
vq->index = index;
vq->size = qvirtio_pci_get_queue_size(d);
vq->free_head = 0;
vq->num_free = vq->size;
vq->align = QVIRTIO_PCI_ALIGN;
vq->indirect = (feat & QVIRTIO_F_RING_INDIRECT_DESC) != 0;
vqpci->vq.index = index;
vqpci->vq.size = qvirtio_pci_get_queue_size(d);
vqpci->vq.free_head = 0;
vqpci->vq.num_free = vqpci->vq.size;
vqpci->vq.align = QVIRTIO_PCI_ALIGN;
vqpci->vq.indirect = (feat & QVIRTIO_F_RING_INDIRECT_DESC) != 0;
vqpci->msix_entry = -1;
vqpci->msix_addr = 0;
vqpci->msix_data = 0x12345678;
/* Check different than 0 */
g_assert_cmpint(vq->size, !=, 0);
g_assert_cmpint(vqpci->vq.size, !=, 0);
/* Check power of 2 */
g_assert_cmpint(vq->size & (vq->size - 1), ==, 0);
g_assert_cmpint(vqpci->vq.size & (vqpci->vq.size - 1), ==, 0);
addr = guest_alloc(alloc, qvring_size(vq->size, QVIRTIO_PCI_ALIGN));
qvring_init(alloc, vq, addr);
qvirtio_pci_set_queue_address(d, vq->desc / QVIRTIO_PCI_ALIGN);
addr = guest_alloc(alloc, qvring_size(vqpci->vq.size, QVIRTIO_PCI_ALIGN));
qvring_init(alloc, &vqpci->vq, addr);
qvirtio_pci_set_queue_address(d, vqpci->vq.desc / QVIRTIO_PCI_ALIGN);
/* TODO: MSI-X configuration */
return vq;
return &vqpci->vq;
}
static void qvirtio_pci_virtqueue_kick(QVirtioDevice *d, QVirtQueue *vq)
@ -198,7 +237,8 @@ const QVirtioBus qvirtio_pci = {
.get_guest_features = qvirtio_pci_get_guest_features,
.get_status = qvirtio_pci_get_status,
.set_status = qvirtio_pci_set_status,
.get_isr_status = qvirtio_pci_get_isr_status,
.get_queue_isr_status = qvirtio_pci_get_queue_isr_status,
.get_config_isr_status = qvirtio_pci_get_config_isr_status,
.queue_select = qvirtio_pci_queue_select,
.get_queue_size = qvirtio_pci_get_queue_size,
.set_queue_address = qvirtio_pci_set_queue_address,
@ -235,4 +275,68 @@ void qvirtio_pci_device_enable(QVirtioPCIDevice *d)
void qvirtio_pci_device_disable(QVirtioPCIDevice *d)
{
qpci_iounmap(d->pdev, d->addr);
d->addr = NULL;
}
void qvirtqueue_pci_msix_setup(QVirtioPCIDevice *d, QVirtQueuePCI *vqpci,
QGuestAllocator *alloc, uint16_t entry)
{
uint16_t vector;
uint32_t control;
void *addr;
g_assert(d->pdev->msix_enabled);
addr = d->pdev->msix_table + (entry * 16);
g_assert_cmpint(entry, >=, 0);
g_assert_cmpint(entry, <, qpci_msix_table_size(d->pdev));
vqpci->msix_entry = entry;
vqpci->msix_addr = guest_alloc(alloc, 4);
qpci_io_writel(d->pdev, addr + PCI_MSIX_ENTRY_LOWER_ADDR,
vqpci->msix_addr & ~0UL);
qpci_io_writel(d->pdev, addr + PCI_MSIX_ENTRY_UPPER_ADDR,
(vqpci->msix_addr >> 32) & ~0UL);
qpci_io_writel(d->pdev, addr + PCI_MSIX_ENTRY_DATA, vqpci->msix_data);
control = qpci_io_readl(d->pdev, addr + PCI_MSIX_ENTRY_VECTOR_CTRL);
qpci_io_writel(d->pdev, addr + PCI_MSIX_ENTRY_VECTOR_CTRL,
control & ~PCI_MSIX_ENTRY_CTRL_MASKBIT);
qvirtio_pci_queue_select(&d->vdev, vqpci->vq.index);
qpci_io_writew(d->pdev, d->addr + QVIRTIO_MSIX_QUEUE_VECTOR, entry);
vector = qpci_io_readw(d->pdev, d->addr + QVIRTIO_MSIX_QUEUE_VECTOR);
g_assert_cmphex(vector, !=, QVIRTIO_MSI_NO_VECTOR);
}
void qvirtio_pci_set_msix_configuration_vector(QVirtioPCIDevice *d,
QGuestAllocator *alloc, uint16_t entry)
{
uint16_t vector;
uint32_t control;
void *addr;
g_assert(d->pdev->msix_enabled);
addr = d->pdev->msix_table + (entry * 16);
g_assert_cmpint(entry, >=, 0);
g_assert_cmpint(entry, <, qpci_msix_table_size(d->pdev));
d->config_msix_entry = entry;
d->config_msix_data = 0x12345678;
d->config_msix_addr = guest_alloc(alloc, 4);
qpci_io_writel(d->pdev, addr + PCI_MSIX_ENTRY_LOWER_ADDR,
d->config_msix_addr & ~0UL);
qpci_io_writel(d->pdev, addr + PCI_MSIX_ENTRY_UPPER_ADDR,
(d->config_msix_addr >> 32) & ~0UL);
qpci_io_writel(d->pdev, addr + PCI_MSIX_ENTRY_DATA, d->config_msix_data);
control = qpci_io_readl(d->pdev, addr + PCI_MSIX_ENTRY_VECTOR_CTRL);
qpci_io_writel(d->pdev, addr + PCI_MSIX_ENTRY_VECTOR_CTRL,
control & ~PCI_MSIX_ENTRY_CTRL_MASKBIT);
qpci_io_writew(d->pdev, d->addr + QVIRTIO_MSIX_CONF_VECTOR, entry);
vector = qpci_io_readw(d->pdev, d->addr + QVIRTIO_MSIX_CONF_VECTOR);
g_assert_cmphex(vector, !=, QVIRTIO_MSI_NO_VECTOR);
}

17
tests/libqos/virtio-pci.h
View File

@ -28,12 +28,24 @@
#define QVIRTIO_PCI_ALIGN 4096
#define QVIRTIO_MSI_NO_VECTOR 0xFFFF
typedef struct QVirtioPCIDevice {
QVirtioDevice vdev;
QPCIDevice *pdev;
void *addr;
uint16_t config_msix_entry;
uint64_t config_msix_addr;
uint32_t config_msix_data;
} QVirtioPCIDevice;
typedef struct QVirtQueuePCI {
QVirtQueue vq;
uint16_t msix_entry;
uint64_t msix_addr;
uint32_t msix_data;
} QVirtQueuePCI;
extern const QVirtioBus qvirtio_pci;
void qvirtio_pci_foreach(QPCIBus *bus, uint16_t device_type,
@ -41,4 +53,9 @@ void qvirtio_pci_foreach(QPCIBus *bus, uint16_t device_type,
QVirtioPCIDevice *qvirtio_pci_device_find(QPCIBus *bus, uint16_t device_type);
void qvirtio_pci_device_enable(QVirtioPCIDevice *d);
void qvirtio_pci_device_disable(QVirtioPCIDevice *d);
void qvirtio_pci_set_msix_configuration_vector(QVirtioPCIDevice *d,
QGuestAllocator *alloc, uint16_t entry);
void qvirtqueue_pci_msix_setup(QVirtioPCIDevice *d, QVirtQueuePCI *vqpci,
QGuestAllocator *alloc, uint16_t entry);
#endif

17
tests/libqos/virtio.c
View File

@ -78,12 +78,25 @@ void qvirtio_set_driver_ok(const QVirtioBus *bus, QVirtioDevice *d)
QVIRTIO_DRIVER_OK | QVIRTIO_DRIVER | QVIRTIO_ACKNOWLEDGE);
}
bool qvirtio_wait_isr(const QVirtioBus *bus, QVirtioDevice *d, uint8_t mask,
bool qvirtio_wait_queue_isr(const QVirtioBus *bus, QVirtioDevice *d,
QVirtQueue *vq, uint64_t timeout)
{
do {
clock_step(10);
if (bus->get_queue_isr_status(d, vq)) {
break; /* It has ended */
}
} while (--timeout);
return timeout != 0;
}
bool qvirtio_wait_config_isr(const QVirtioBus *bus, QVirtioDevice *d,
uint64_t timeout)
{
do {
clock_step(10);
if (bus->get_isr_status(d) & mask) {
if (bus->get_config_isr_status(d)) {
break; /* It has ended */
}
} while (--timeout);

11
tests/libqos/virtio.h
View File

@ -109,8 +109,11 @@ typedef struct QVirtioBus {
/* Set status of the device */
void (*set_status)(QVirtioDevice *d, uint8_t status);
/* Get the ISR status of the device */
uint8_t (*get_isr_status)(QVirtioDevice *d);
/* Get the queue ISR status of the device */
bool (*get_queue_isr_status)(QVirtioDevice *d, QVirtQueue *vq);
/* Get the configuration ISR status of the device */
bool (*get_config_isr_status)(QVirtioDevice *d);
/* Select a queue to work on */
void (*queue_select)(QVirtioDevice *d, uint16_t index);
@ -153,7 +156,9 @@ void qvirtio_set_acknowledge(const QVirtioBus *bus, QVirtioDevice *d);
void qvirtio_set_driver(const QVirtioBus *bus, QVirtioDevice *d);
void qvirtio_set_driver_ok(const QVirtioBus *bus, QVirtioDevice *d);
bool qvirtio_wait_isr(const QVirtioBus *bus, QVirtioDevice *d, uint8_t mask,
bool qvirtio_wait_queue_isr(const QVirtioBus *bus, QVirtioDevice *d,
QVirtQueue *vq, uint64_t timeout);
bool qvirtio_wait_config_isr(const QVirtioBus *bus, QVirtioDevice *d,
uint64_t timeout);
QVirtQueue *qvirtqueue_setup(const QVirtioBus *bus, QVirtioDevice *d,
QGuestAllocator *alloc, uint16_t index);

180
tests/virtio-blk-test.c
View File

@ -134,7 +134,7 @@ static void pci_basic(void)
{
QVirtioPCIDevice *dev;
QPCIBus *bus;
QVirtQueue *vq;
QVirtQueuePCI *vqpci;
QGuestAllocator *alloc;
QVirtioBlkReq req;
void *addr;
@ -162,7 +162,8 @@ static void pci_basic(void)
qvirtio_set_features(&qvirtio_pci, &dev->vdev, features);
alloc = pc_alloc_init();
vq = qvirtqueue_setup(&qvirtio_pci, &dev->vdev, alloc, 0);
vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&qvirtio_pci, &dev->vdev,
alloc, 0);
qvirtio_set_driver_ok(&qvirtio_pci, &dev->vdev);
@ -178,11 +179,11 @@ static void pci_basic(void)
g_free(req.data);
free_head = qvirtqueue_add(vq, req_addr, 528, false, true);
qvirtqueue_add(vq, req_addr + 528, 1, true, false);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, vq, free_head);
free_head = qvirtqueue_add(&vqpci->vq, req_addr, 528, false, true);
qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
g_assert(qvirtio_wait_isr(&qvirtio_pci, &dev->vdev, 0x1,
g_assert(qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
QVIRTIO_BLK_TIMEOUT));
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
@ -199,12 +200,12 @@ static void pci_basic(void)
g_free(req.data);
free_head = qvirtqueue_add(vq, req_addr, 16, false, true);
qvirtqueue_add(vq, req_addr + 16, 513, true, false);
free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
qvirtqueue_add(&vqpci->vq, req_addr + 16, 513, true, false);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, vq, free_head);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
g_assert(qvirtio_wait_isr(&qvirtio_pci, &dev->vdev, 0x1,
g_assert(qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
QVIRTIO_BLK_TIMEOUT));
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
@ -226,15 +227,13 @@ static void pci_basic(void)
req_addr = virtio_blk_request(alloc, &req, 512);
g_free(req.data);
free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
qvirtqueue_add(&vqpci->vq, req_addr + 16, 512, false, true);
qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
free_head = qvirtqueue_add(vq, req_addr, 16, false, true);
qvirtqueue_add(vq, req_addr + 16, 512, false, true);
qvirtqueue_add(vq, req_addr + 528, 1, true, false);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, vq, free_head);
g_assert(qvirtio_wait_isr(&qvirtio_pci, &dev->vdev, 0x1,
g_assert(qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
QVIRTIO_BLK_TIMEOUT));
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
@ -251,19 +250,17 @@ static void pci_basic(void)
g_free(req.data);
free_head = qvirtqueue_add(vq, req_addr, 16, false, true);
qvirtqueue_add(vq, req_addr + 16, 512, true, true);
qvirtqueue_add(vq, req_addr + 528, 1, true, false);
free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
qvirtqueue_add(&vqpci->vq, req_addr + 16, 512, true, true);
qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, vq, free_head);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
g_assert(qvirtio_wait_isr(&qvirtio_pci, &dev->vdev, 0x1,
g_assert(qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
QVIRTIO_BLK_TIMEOUT));
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
guest_free(alloc, req_addr);
data = g_malloc0(512);
memread(req_addr + 16, data, 512);
g_assert_cmpstr(data, ==, "TEST");
@ -272,7 +269,7 @@ static void pci_basic(void)
guest_free(alloc, req_addr);
/* End test */
guest_free(alloc, vq->desc);
guest_free(alloc, vqpci->vq.desc);
qvirtio_pci_device_disable(dev);
g_free(dev);
test_end();
@ -282,7 +279,7 @@ static void pci_indirect(void)
{
QVirtioPCIDevice *dev;
QPCIBus *bus;
QVirtQueue *vq;
QVirtQueuePCI *vqpci;
QGuestAllocator *alloc;
QVirtioBlkReq req;
QVRingIndirectDesc *indirect;
@ -311,8 +308,8 @@ static void pci_indirect(void)
qvirtio_set_features(&qvirtio_pci, &dev->vdev, features);
alloc = pc_alloc_init();
vq = qvirtqueue_setup(&qvirtio_pci, &dev->vdev, alloc, 0);
vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&qvirtio_pci, &dev->vdev,
alloc, 0);
qvirtio_set_driver_ok(&qvirtio_pci, &dev->vdev);
/* Write request */
@ -329,10 +326,10 @@ static void pci_indirect(void)
indirect = qvring_indirect_desc_setup(&dev->vdev, alloc, 2);
qvring_indirect_desc_add(indirect, req_addr, 528, false);
qvring_indirect_desc_add(indirect, req_addr + 528, 1, true);
free_head = qvirtqueue_add_indirect(vq, indirect);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, vq, free_head);
free_head = qvirtqueue_add_indirect(&vqpci->vq, indirect);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
g_assert(qvirtio_wait_isr(&qvirtio_pci, &dev->vdev, 0x1,
g_assert(qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
QVIRTIO_BLK_TIMEOUT));
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
@ -354,10 +351,10 @@ static void pci_indirect(void)
indirect = qvring_indirect_desc_setup(&dev->vdev, alloc, 2);
qvring_indirect_desc_add(indirect, req_addr, 16, false);
qvring_indirect_desc_add(indirect, req_addr + 16, 513, true);
free_head = qvirtqueue_add_indirect(vq, indirect);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, vq, free_head);
free_head = qvirtqueue_add_indirect(&vqpci->vq, indirect);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
g_assert(qvirtio_wait_isr(&qvirtio_pci, &dev->vdev, 0x1,
g_assert(qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
QVIRTIO_BLK_TIMEOUT));
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
@ -371,7 +368,7 @@ static void pci_indirect(void)
guest_free(alloc, req_addr);
/* End test */
guest_free(alloc, vq->desc);
guest_free(alloc, vqpci->vq.desc);
qvirtio_pci_device_disable(dev);
g_free(dev);
test_end();
@ -399,7 +396,7 @@ static void pci_config(void)
qmp("{ 'execute': 'block_resize', 'arguments': { 'device': 'drive0', "
" 'size': %d } }", n_size);
g_assert(qvirtio_wait_isr(&qvirtio_pci, &dev->vdev, 0x2,
g_assert(qvirtio_wait_config_isr(&qvirtio_pci, &dev->vdev,
QVIRTIO_BLK_TIMEOUT));
capacity = qvirtio_config_readq(&qvirtio_pci, &dev->vdev, addr);
@ -410,6 +407,116 @@ static void pci_config(void)
test_end();
}
static void pci_msix(void)
{
QVirtioPCIDevice *dev;
QPCIBus *bus;
QVirtQueuePCI *vqpci;
QGuestAllocator *alloc;
QVirtioBlkReq req;
int n_size = TEST_IMAGE_SIZE / 2;
void *addr;
uint64_t req_addr;
uint64_t capacity;
uint32_t features;
uint32_t free_head;
uint8_t status;
char *data;
bus = test_start();
alloc = pc_alloc_init();
dev = virtio_blk_init(bus);
qpci_msix_enable(dev->pdev);
qvirtio_pci_set_msix_configuration_vector(dev, alloc, 0);
/* MSI-X is enabled */
addr = dev->addr + QVIRTIO_DEVICE_SPECIFIC_MSIX;
capacity = qvirtio_config_readq(&qvirtio_pci, &dev->vdev, addr);
g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
features = qvirtio_get_features(&qvirtio_pci, &dev->vdev);
features = features & ~(QVIRTIO_F_BAD_FEATURE |
QVIRTIO_F_RING_INDIRECT_DESC |
QVIRTIO_F_RING_EVENT_IDX | QVIRTIO_BLK_F_SCSI);
qvirtio_set_features(&qvirtio_pci, &dev->vdev, features);
vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&qvirtio_pci, &dev->vdev,
alloc, 0);
qvirtqueue_pci_msix_setup(dev, vqpci, alloc, 1);
qvirtio_set_driver_ok(&qvirtio_pci, &dev->vdev);
qmp("{ 'execute': 'block_resize', 'arguments': { 'device': 'drive0', "
" 'size': %d } }", n_size);
g_assert(qvirtio_wait_config_isr(&qvirtio_pci, &dev->vdev,
QVIRTIO_BLK_TIMEOUT));
capacity = qvirtio_config_readq(&qvirtio_pci, &dev->vdev, addr);
g_assert_cmpint(capacity, ==, n_size / 512);
/* Write request */
req.type = QVIRTIO_BLK_T_OUT;
req.ioprio = 1;
req.sector = 0;
req.data = g_malloc0(512);
strcpy(req.data, "TEST");
req_addr = virtio_blk_request(alloc, &req, 512);
g_free(req.data);
free_head = qvirtqueue_add(&vqpci->vq, req_addr, 528, false, true);
qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
g_assert(qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
QVIRTIO_BLK_TIMEOUT));
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
guest_free(alloc, req_addr);
/* Read request */
req.type = QVIRTIO_BLK_T_IN;
req.ioprio = 1;
req.sector = 0;
req.data = g_malloc0(512);
req_addr = virtio_blk_request(alloc, &req, 512);
g_free(req.data);
free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
qvirtqueue_add(&vqpci->vq, req_addr + 16, 513, true, false);
qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head);
g_assert(qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq,
QVIRTIO_BLK_TIMEOUT));
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
data = g_malloc0(512);
memread(req_addr + 16, data, 512);
g_assert_cmpstr(data, ==, "TEST");
g_free(data);
guest_free(alloc, req_addr);
/* End test */
guest_free(alloc, vqpci->vq.desc);
qpci_msix_disable(dev->pdev);
qvirtio_pci_device_disable(dev);
g_free(dev);
test_end();
}
int main(int argc, char **argv)
{
int ret;
@ -419,6 +526,7 @@ int main(int argc, char **argv)
g_test_add_func("/virtio/blk/pci/basic", pci_basic);
g_test_add_func("/virtio/blk/pci/indirect", pci_indirect);
g_test_add_func("/virtio/blk/pci/config", pci_config);
g_test_add_func("/virtio/blk/pci/msix", pci_msix);
ret = g_test_run();