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Subject[PATCH v5 10/14] vfio/mdev: idxd: virtual device commands emulation
From
Date
Add all the helper functions that supports the emulation of the commands
that are submitted to the device command register.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
---
drivers/dma/idxd/device.c | 5
drivers/dma/idxd/registers.h | 16 +
drivers/vfio/mdev/idxd/mdev.c | 2
drivers/vfio/mdev/idxd/mdev.h | 3
drivers/vfio/mdev/idxd/vdev.c | 440 +++++++++++++++++++++++++++++++++++++++++
5 files changed, 460 insertions(+), 6 deletions(-)

diff --git a/drivers/dma/idxd/device.c b/drivers/dma/idxd/device.c
index 245d576ddc43..c5faa23bd8ce 100644
--- a/drivers/dma/idxd/device.c
+++ b/drivers/dma/idxd/device.c
@@ -242,6 +242,7 @@ int idxd_wq_enable(struct idxd_wq *wq, u32 *status)
dev_dbg(dev, "WQ %d enabled\n", wq->id);
return 0;
}
+EXPORT_SYMBOL_GPL(idxd_wq_enable);

int idxd_wq_disable(struct idxd_wq *wq, u32 *status)
{
@@ -299,6 +300,7 @@ int idxd_wq_drain(struct idxd_wq *wq, u32 *status)
dev_dbg(dev, "WQ %d drained\n", wq->id);
return 0;
}
+EXPORT_SYMBOL_GPL(idxd_wq_drain);

int idxd_wq_map_portal(struct idxd_wq *wq)
{
@@ -351,6 +353,7 @@ int idxd_wq_abort(struct idxd_wq *wq, u32 *status)
dev_dbg(dev, "WQ %d aborted\n", wq->id);
return 0;
}
+EXPORT_SYMBOL_GPL(idxd_wq_abort);

int idxd_wq_set_pasid(struct idxd_wq *wq, int pasid)
{
@@ -470,6 +473,7 @@ void idxd_wq_setup_pasid(struct idxd_wq *wq, int pasid)
wq->wqcfg->pasid = pasid;
iowrite32(wq->wqcfg->bits[WQCFG_PASID_IDX], idxd->reg_base + offset);
}
+EXPORT_SYMBOL_GPL(idxd_wq_setup_pasid);

void idxd_wq_setup_priv(struct idxd_wq *wq, int priv)
{
@@ -483,6 +487,7 @@ void idxd_wq_setup_priv(struct idxd_wq *wq, int priv)
wq->wqcfg->priv = !!priv;
iowrite32(wq->wqcfg->bits[WQCFG_PRIV_IDX], idxd->reg_base + offset);
}
+EXPORT_SYMBOL_GPL(idxd_wq_setup_priv);

/* Device control bits */
static inline bool idxd_is_enabled(struct idxd_device *idxd)
diff --git a/drivers/dma/idxd/registers.h b/drivers/dma/idxd/registers.h
index 50ea94259c99..0f985787417c 100644
--- a/drivers/dma/idxd/registers.h
+++ b/drivers/dma/idxd/registers.h
@@ -120,7 +120,8 @@ union gencfg_reg {
union genctrl_reg {
struct {
u32 softerr_int_en:1;
- u32 rsvd:31;
+ u32 halt_state_int_en:1;
+ u32 rsvd:30;
};
u32 bits;
} __packed;
@@ -142,6 +143,8 @@ enum idxd_device_status_state {
IDXD_DEVICE_STATE_HALT,
};

+#define IDXD_GENSTATS_MASK 0x03
+
enum idxd_device_reset_type {
IDXD_DEVICE_RESET_SOFTWARE = 0,
IDXD_DEVICE_RESET_FLR,
@@ -154,6 +157,7 @@ enum idxd_device_reset_type {
#define IDXD_INTC_CMD 0x02
#define IDXD_INTC_OCCUPY 0x04
#define IDXD_INTC_PERFMON_OVFL 0x08
+#define IDXD_INTC_HALT_STATE 0x10

#define IDXD_CMD_OFFSET 0xa0
union idxd_command_reg {
@@ -165,6 +169,7 @@ union idxd_command_reg {
};
u32 bits;
} __packed;
+#define IDXD_CMD_INT_MASK 0x80000000

enum idxd_cmd {
IDXD_CMD_ENABLE_DEVICE = 1,
@@ -228,10 +233,11 @@ enum idxd_cmdsts_err {
/* disable device errors */
IDXD_CMDSTS_ERR_DIS_DEV_EN = 0x31,
/* disable WQ, drain WQ, abort WQ, reset WQ */
- IDXD_CMDSTS_ERR_DEV_NOT_EN,
+ IDXD_CMDSTS_ERR_WQ_NOT_EN,
/* request interrupt handle */
IDXD_CMDSTS_ERR_INVAL_INT_IDX = 0x41,
IDXD_CMDSTS_ERR_NO_HANDLE,
+ IDXD_CMDSTS_ERR_INVAL_INT_IDX_RELEASE,
};

#define IDXD_CMDCAP_OFFSET 0xb0
@@ -353,6 +359,12 @@ union wqcfg {
u32 bits[8];
} __packed;

+enum idxd_wq_hw_state {
+ IDXD_WQ_DEV_DISABLED = 0,
+ IDXD_WQ_DEV_ENABLED,
+ IDXD_WQ_DEV_BUSY,
+};
+
#define WQCFG_PASID_IDX 2
#define WQCFG_PRIV_IDX 2
#define WQCFG_MODE_DEDICATED 1
diff --git a/drivers/vfio/mdev/idxd/mdev.c b/drivers/vfio/mdev/idxd/mdev.c
index 67e6b33468cd..7cde707021db 100644
--- a/drivers/vfio/mdev/idxd/mdev.c
+++ b/drivers/vfio/mdev/idxd/mdev.c
@@ -52,7 +52,7 @@ static char idxd_iax_1dwq_name[IDXD_MDEV_NAME_LEN];
static int idxd_vdcm_set_irqs(struct vdcm_idxd *vidxd, uint32_t flags, unsigned int index,
unsigned int start, unsigned int count, void *data);

-static int idxd_mdev_get_pasid(struct mdev_device *mdev, u32 *pasid)
+int idxd_mdev_get_pasid(struct mdev_device *mdev, u32 *pasid)
{
struct vfio_group *vfio_group;
struct iommu_domain *iommu_domain;
diff --git a/drivers/vfio/mdev/idxd/mdev.h b/drivers/vfio/mdev/idxd/mdev.h
index 7ca50f054714..8421b4962ac7 100644
--- a/drivers/vfio/mdev/idxd/mdev.h
+++ b/drivers/vfio/mdev/idxd/mdev.h
@@ -38,6 +38,7 @@ struct ims_irq_entry {
bool irq_set;
int id;
int irq;
+ int ims_idx;
};

struct idxd_vdev {
@@ -112,4 +113,6 @@ static inline u64 get_reg_val(void *buf, int size)
return val;
}

+int idxd_mdev_get_pasid(struct mdev_device *mdev, u32 *pasid);
+
#endif
diff --git a/drivers/vfio/mdev/idxd/vdev.c b/drivers/vfio/mdev/idxd/vdev.c
index 958b09987e5c..766fd98e9eea 100644
--- a/drivers/vfio/mdev/idxd/vdev.c
+++ b/drivers/vfio/mdev/idxd/vdev.c
@@ -492,17 +492,451 @@ void vidxd_mmio_init(struct vdcm_idxd *vidxd)

static void idxd_complete_command(struct vdcm_idxd *vidxd, enum idxd_cmdsts_err val)
{
- /* PLACEHOLDER */
+ u8 *bar0 = vidxd->bar0;
+ u32 *cmd = (u32 *)(bar0 + IDXD_CMD_OFFSET);
+ u32 *cmdsts = (u32 *)(bar0 + IDXD_CMDSTS_OFFSET);
+ u32 *intcause = (u32 *)(bar0 + IDXD_INTCAUSE_OFFSET);
+ struct mdev_device *mdev = vidxd->vdev.mdev;
+ struct device *dev = mdev_dev(mdev);
+
+ *cmdsts = val;
+ dev_dbg(dev, "%s: cmd: %#x status: %#x\n", __func__, *cmd, val);
+
+ if (*cmd & IDXD_CMD_INT_MASK) {
+ *intcause |= IDXD_INTC_CMD;
+ vidxd_send_interrupt(&vidxd->irq_entries[0]);
+ }
+}
+
+static void vidxd_enable(struct vdcm_idxd *vidxd)
+{
+ u8 *bar0 = vidxd->bar0;
+ union gensts_reg *gensts = (union gensts_reg *)(bar0 + IDXD_GENSTATS_OFFSET);
+ struct mdev_device *mdev = vidxd->vdev.mdev;
+ struct device *dev = mdev_dev(mdev);
+
+ dev_dbg(dev, "%s\n", __func__);
+ if (gensts->state == IDXD_DEVICE_STATE_ENABLED)
+ return idxd_complete_command(vidxd, IDXD_CMDSTS_ERR_DEV_ENABLED);
+
+ /* Check PCI configuration */
+ if (!(vidxd->cfg[PCI_COMMAND] & PCI_COMMAND_MASTER))
+ return idxd_complete_command(vidxd, IDXD_CMDSTS_ERR_BUSMASTER_EN);
+
+ gensts->state = IDXD_DEVICE_STATE_ENABLED;
+
+ return idxd_complete_command(vidxd, IDXD_CMDSTS_SUCCESS);
+}
+
+static void vidxd_disable(struct vdcm_idxd *vidxd)
+{
+ struct idxd_wq *wq;
+ union wqcfg *wqcfg;
+ u8 *bar0 = vidxd->bar0;
+ union gensts_reg *gensts = (union gensts_reg *)(bar0 + IDXD_GENSTATS_OFFSET);
+ struct mdev_device *mdev = vidxd->vdev.mdev;
+ struct device *dev = mdev_dev(mdev);
+ u32 status;
+
+ dev_dbg(dev, "%s\n", __func__);
+ if (gensts->state == IDXD_DEVICE_STATE_DISABLED) {
+ idxd_complete_command(vidxd, IDXD_CMDSTS_ERR_DIS_DEV_EN);
+ return;
+ }
+
+ wqcfg = (union wqcfg *)(bar0 + VIDXD_WQCFG_OFFSET);
+ wq = vidxd->wq;
+
+ /* If it is a DWQ, need to disable the DWQ as well */
+ if (wq_dedicated(wq)) {
+ idxd_wq_disable(wq, &status);
+ if (status) {
+ dev_warn(dev, "vidxd disable (wq disable) failed: %#x\n", status);
+ idxd_complete_command(vidxd, IDXD_CMDSTS_ERR_DIS_DEV_EN);
+ return;
+ }
+ } else {
+ idxd_wq_drain(wq, &status);
+ if (status)
+ dev_warn(dev, "vidxd disable (wq drain) failed: %#x\n", status);
+ }
+
+ wqcfg->wq_state = 0;
+ gensts->state = IDXD_DEVICE_STATE_DISABLED;
+ idxd_complete_command(vidxd, IDXD_CMDSTS_SUCCESS);
+}
+
+static void vidxd_drain_all(struct vdcm_idxd *vidxd)
+{
+ struct mdev_device *mdev = vidxd->vdev.mdev;
+ struct device *dev = mdev_dev(mdev);
+ struct idxd_wq *wq = vidxd->wq;
+
+ dev_dbg(dev, "%s\n", __func__);
+
+ idxd_wq_drain(wq, NULL);
+ idxd_complete_command(vidxd, IDXD_CMDSTS_SUCCESS);
+}
+
+static void vidxd_wq_drain(struct vdcm_idxd *vidxd, int val)
+{
+ struct mdev_device *mdev = vidxd->vdev.mdev;
+ struct device *dev = mdev_dev(mdev);
+ u8 *bar0 = vidxd->bar0;
+ union wqcfg *wqcfg = (union wqcfg *)(bar0 + VIDXD_WQCFG_OFFSET);
+ struct idxd_wq *wq = vidxd->wq;
+ u32 status;
+
+ dev_dbg(dev, "%s\n", __func__);
+ if (wqcfg->wq_state != IDXD_WQ_DEV_ENABLED) {
+ idxd_complete_command(vidxd, IDXD_CMDSTS_ERR_WQ_NOT_EN);
+ return;
+ }
+
+ idxd_wq_drain(wq, &status);
+ if (status) {
+ dev_dbg(dev, "wq drain failed: %#x\n", status);
+ idxd_complete_command(vidxd, status);
+ return;
+ }
+
+ idxd_complete_command(vidxd, IDXD_CMDSTS_SUCCESS);
+}
+
+static void vidxd_abort_all(struct vdcm_idxd *vidxd)
+{
+ struct mdev_device *mdev = vidxd->vdev.mdev;
+ struct device *dev = mdev_dev(mdev);
+ struct idxd_wq *wq = vidxd->wq;
+
+ dev_dbg(dev, "%s\n", __func__);
+ idxd_wq_abort(wq, NULL);
+ idxd_complete_command(vidxd, IDXD_CMDSTS_SUCCESS);
+}
+
+static void vidxd_wq_abort(struct vdcm_idxd *vidxd, int val)
+{
+ struct mdev_device *mdev = vidxd->vdev.mdev;
+ struct device *dev = mdev_dev(mdev);
+ u8 *bar0 = vidxd->bar0;
+ union wqcfg *wqcfg = (union wqcfg *)(bar0 + VIDXD_WQCFG_OFFSET);
+ struct idxd_wq *wq = vidxd->wq;
+ u32 status;
+
+ dev_dbg(dev, "%s\n", __func__);
+ if (wqcfg->wq_state != IDXD_WQ_DEV_ENABLED) {
+ idxd_complete_command(vidxd, IDXD_CMDSTS_ERR_WQ_NOT_EN);
+ return;
+ }
+
+ idxd_wq_abort(wq, &status);
+ if (status) {
+ dev_dbg(dev, "wq abort failed: %#x\n", status);
+ idxd_complete_command(vidxd, status);
+ return;
+ }
+
+ idxd_complete_command(vidxd, IDXD_CMDSTS_SUCCESS);
}

void vidxd_reset(struct vdcm_idxd *vidxd)
{
- /* PLACEHOLDER */
+ struct mdev_device *mdev = vidxd->vdev.mdev;
+ struct device *dev = mdev_dev(mdev);
+ u8 *bar0 = vidxd->bar0;
+ union gensts_reg *gensts = (union gensts_reg *)(bar0 + IDXD_GENSTATS_OFFSET);
+ struct idxd_wq *wq;
+
+ dev_dbg(dev, "%s\n", __func__);
+ gensts->state = IDXD_DEVICE_STATE_DRAIN;
+ wq = vidxd->wq;
+
+ if (wq->state == IDXD_WQ_ENABLED) {
+ idxd_wq_abort(wq, NULL);
+ idxd_wq_disable(wq, NULL);
+ }
+
+ vidxd_mmio_init(vidxd);
+ gensts->state = IDXD_DEVICE_STATE_DISABLED;
+ idxd_complete_command(vidxd, IDXD_CMDSTS_SUCCESS);
+}
+
+static void vidxd_wq_reset(struct vdcm_idxd *vidxd, int wq_id_mask)
+{
+ struct idxd_wq *wq;
+ u8 *bar0 = vidxd->bar0;
+ union wqcfg *wqcfg = (union wqcfg *)(bar0 + VIDXD_WQCFG_OFFSET);
+ struct mdev_device *mdev = vidxd->vdev.mdev;
+ struct device *dev = mdev_dev(mdev);
+ u32 status;
+
+ wq = vidxd->wq;
+ dev_dbg(dev, "vidxd reset wq %u:%u\n", 0, wq->id);
+
+ if (wqcfg->wq_state != IDXD_WQ_DEV_ENABLED) {
+ idxd_complete_command(vidxd, IDXD_CMDSTS_ERR_WQ_NOT_EN);
+ return;
+ }
+
+ idxd_wq_abort(wq, &status);
+ if (status) {
+ dev_dbg(dev, "vidxd reset wq failed to abort: %#x\n", status);
+ idxd_complete_command(vidxd, status);
+ return;
+ }
+
+ idxd_wq_disable(wq, &status);
+ if (status) {
+ dev_dbg(dev, "vidxd reset wq failed to disable: %#x\n", status);
+ idxd_complete_command(vidxd, status);
+ return;
+ }
+
+ wqcfg->wq_state = IDXD_WQ_DEV_DISABLED;
+ idxd_complete_command(vidxd, IDXD_CMDSTS_SUCCESS);
+}
+
+static void vidxd_alloc_int_handle(struct vdcm_idxd *vidxd, int operand)
+{
+ bool ims = !!(operand & CMD_INT_HANDLE_IMS);
+ u32 cmdsts;
+ struct mdev_device *mdev = vidxd->vdev.mdev;
+ struct device *dev = mdev_dev(mdev);
+ int ims_idx, vidx;
+
+ vidx = operand & GENMASK(15, 0);
+
+ dev_dbg(dev, "allocating int handle for %d\n", vidx);
+
+ /* vidx cannot be 0 since that's emulated and does not require IMS handle */
+ if (vidx <= 0 || vidx >= VIDXD_MAX_MSIX_ENTRIES) {
+ idxd_complete_command(vidxd, IDXD_CMDSTS_ERR_INVAL_INT_IDX);
+ return;
+ }
+
+ if (ims) {
+ dev_warn(dev, "IMS allocation is not implemented yet\n");
+ idxd_complete_command(vidxd, IDXD_CMDSTS_ERR_NO_HANDLE);
+ return;
+ }
+
+ ims_idx = vidxd->irq_entries[vidx].ims_idx;
+ cmdsts = ims_idx << IDXD_CMDSTS_RES_SHIFT;
+ dev_dbg(dev, "requested index %d handle %d\n", vidx, ims_idx);
+ idxd_complete_command(vidxd, cmdsts);
+}
+
+static void vidxd_release_int_handle(struct vdcm_idxd *vidxd, int operand)
+{
+ struct mdev_device *mdev = vidxd->vdev.mdev;
+ struct device *dev = mdev_dev(mdev);
+ bool ims = !!(operand & CMD_INT_HANDLE_IMS);
+ int handle, i;
+ bool found = false;
+
+ handle = operand & GENMASK(15, 0);
+ dev_dbg(dev, "allocating int handle %d\n", handle);
+
+ if (ims) {
+ dev_warn(dev, "IMS allocation is not implemented yet\n");
+ idxd_complete_command(vidxd, IDXD_CMDSTS_ERR_INVAL_INT_IDX_RELEASE);
+ return;
+ }
+
+ /* IMS backed entry start at 1, 0 is emulated vector */
+ for (i = 1; i < VIDXD_MAX_MSIX_ENTRIES; i++) {
+ if (vidxd->irq_entries[i].ims_idx == handle) {
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ dev_warn(dev, "Freeing unallocated int handle.\n");
+ idxd_complete_command(vidxd, IDXD_CMDSTS_ERR_INVAL_INT_IDX_RELEASE);
+ }
+
+ dev_dbg(dev, "int handle %d released.\n", handle);
+ idxd_complete_command(vidxd, IDXD_CMDSTS_SUCCESS);
+}
+
+static void vidxd_wq_enable(struct vdcm_idxd *vidxd, int wq_id)
+{
+ struct idxd_wq *wq;
+ u8 *bar0 = vidxd->bar0;
+ union wq_cap_reg *wqcap;
+ struct mdev_device *mdev = vidxd->vdev.mdev;
+ struct device *dev = mdev_dev(mdev);
+ struct idxd_device *idxd;
+ union wqcfg *vwqcfg, *wqcfg;
+ unsigned long flags;
+ u32 status, wq_pasid;
+ int priv, rc;
+
+ if (wq_id >= VIDXD_MAX_WQS) {
+ idxd_complete_command(vidxd, IDXD_CMDSTS_INVAL_WQIDX);
+ return;
+ }
+
+ idxd = vidxd->idxd;
+ wq = vidxd->wq;
+
+ dev_dbg(dev, "%s: wq %u:%u\n", __func__, wq_id, wq->id);
+
+ vwqcfg = (union wqcfg *)(bar0 + VIDXD_WQCFG_OFFSET + wq_id * 32);
+ wqcap = (union wq_cap_reg *)(bar0 + IDXD_WQCAP_OFFSET);
+ wqcfg = wq->wqcfg;
+
+ if (vidxd_state(vidxd) != IDXD_DEVICE_STATE_ENABLED) {
+ idxd_complete_command(vidxd, IDXD_CMDSTS_ERR_DEV_NOTEN);
+ return;
+ }
+
+ if (vwqcfg->wq_state != IDXD_WQ_DEV_DISABLED) {
+ idxd_complete_command(vidxd, IDXD_CMDSTS_ERR_WQ_ENABLED);
+ return;
+ }
+
+ if (wq_dedicated(wq) && wqcap->dedicated_mode == 0) {
+ idxd_complete_command(vidxd, IDXD_CMDSTS_ERR_WQ_MODE);
+ return;
+ }
+
+ priv = 1;
+ rc = idxd_mdev_get_pasid(mdev, &wq_pasid);
+ if (rc < 0) {
+ dev_err(dev, "idxd pasid setup failed wq %d: %d\n", wq->id, rc);
+ idxd_complete_command(vidxd, IDXD_CMDSTS_ERR_PASID_EN);
+ return;
+ }
+
+ /* Clear pasid_en, pasid, and priv values */
+ wqcfg->bits[WQCFG_PASID_IDX] &= ~GENMASK(29, 8);
+ wqcfg->priv = priv;
+ wqcfg->pasid_en = 1;
+ wqcfg->pasid = wq_pasid;
+ dev_dbg(dev, "program pasid %d in wq %d\n", wq_pasid, wq->id);
+ spin_lock_irqsave(&idxd->dev_lock, flags);
+ idxd_wq_setup_pasid(wq, wq_pasid);
+ idxd_wq_setup_priv(wq, priv);
+ spin_unlock_irqrestore(&idxd->dev_lock, flags);
+ idxd_wq_enable(wq, &status);
+ if (status) {
+ dev_err(dev, "vidxd enable wq %d failed\n", wq->id);
+ idxd_complete_command(vidxd, status);
+ return;
+ }
+
+ vwqcfg->wq_state = IDXD_WQ_DEV_ENABLED;
+ idxd_complete_command(vidxd, IDXD_CMDSTS_SUCCESS);
+}
+
+static void vidxd_wq_disable(struct vdcm_idxd *vidxd, int wq_id_mask)
+{
+ struct idxd_wq *wq;
+ union wqcfg *wqcfg;
+ u8 *bar0 = vidxd->bar0;
+ struct mdev_device *mdev = vidxd->vdev.mdev;
+ struct device *dev = mdev_dev(mdev);
+ u32 status;
+
+ wq = vidxd->wq;
+
+ dev_dbg(dev, "vidxd disable wq %u:%u\n", 0, wq->id);
+
+ wqcfg = (union wqcfg *)(bar0 + VIDXD_WQCFG_OFFSET);
+ if (wqcfg->wq_state != IDXD_WQ_DEV_ENABLED) {
+ idxd_complete_command(vidxd, IDXD_CMDSTS_ERR_WQ_NOT_EN);
+ return;
+ }
+
+ /* If it is a DWQ, need to disable the DWQ as well */
+ if (wq_dedicated(wq)) {
+ idxd_wq_disable(wq, &status);
+ if (status) {
+ dev_warn(dev, "vidxd disable wq failed: %#x\n", status);
+ idxd_complete_command(vidxd, status);
+ return;
+ }
+ } else {
+ idxd_wq_drain(wq, &status);
+ if (status) {
+ dev_warn(dev, "vidxd disable drain wq failed: %#x\n", status);
+ idxd_complete_command(vidxd, status);
+ return;
+ }
+ }
+
+ wqcfg->wq_state = IDXD_WQ_DEV_DISABLED;
+ idxd_complete_command(vidxd, IDXD_CMDSTS_SUCCESS);
+}
+
+static bool command_supported(struct vdcm_idxd *vidxd, u32 cmd)
+{
+ struct idxd_device *idxd = vidxd->idxd;
+
+ if (cmd == IDXD_CMD_REQUEST_INT_HANDLE || cmd == IDXD_CMD_RELEASE_INT_HANDLE)
+ return true;
+
+ return !!(idxd->hw.opcap.bits[0] & BIT_ULL(cmd));
}

void vidxd_do_command(struct vdcm_idxd *vidxd, u32 val)
{
- /* PLACEHOLDER */
+ union idxd_command_reg *reg = (union idxd_command_reg *)(vidxd->bar0 + IDXD_CMD_OFFSET);
+ struct mdev_device *mdev = vidxd->vdev.mdev;
+ struct device *dev = mdev_dev(mdev);
+
+ reg->bits = val;
+
+ dev_dbg(dev, "%s: cmd code: %u reg: %x\n", __func__, reg->cmd, reg->bits);
+
+ if (!command_supported(vidxd, reg->cmd)) {
+ idxd_complete_command(vidxd, IDXD_CMDSTS_INVAL_CMD);
+ return;
+ }
+
+ switch (reg->cmd) {
+ case IDXD_CMD_ENABLE_DEVICE:
+ vidxd_enable(vidxd);
+ break;
+ case IDXD_CMD_DISABLE_DEVICE:
+ vidxd_disable(vidxd);
+ break;
+ case IDXD_CMD_DRAIN_ALL:
+ vidxd_drain_all(vidxd);
+ break;
+ case IDXD_CMD_ABORT_ALL:
+ vidxd_abort_all(vidxd);
+ break;
+ case IDXD_CMD_RESET_DEVICE:
+ vidxd_reset(vidxd);
+ break;
+ case IDXD_CMD_ENABLE_WQ:
+ vidxd_wq_enable(vidxd, reg->operand);
+ break;
+ case IDXD_CMD_DISABLE_WQ:
+ vidxd_wq_disable(vidxd, reg->operand);
+ break;
+ case IDXD_CMD_DRAIN_WQ:
+ vidxd_wq_drain(vidxd, reg->operand);
+ break;
+ case IDXD_CMD_ABORT_WQ:
+ vidxd_wq_abort(vidxd, reg->operand);
+ break;
+ case IDXD_CMD_RESET_WQ:
+ vidxd_wq_reset(vidxd, reg->operand);
+ break;
+ case IDXD_CMD_REQUEST_INT_HANDLE:
+ vidxd_alloc_int_handle(vidxd, reg->operand);
+ break;
+ case IDXD_CMD_RELEASE_INT_HANDLE:
+ vidxd_release_int_handle(vidxd, reg->operand);
+ break;
+ default:
+ idxd_complete_command(vidxd, IDXD_CMDSTS_INVAL_CMD);
+ break;
+ }
}

int vidxd_setup_ims_entries(struct vdcm_idxd *vidxd)

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