From: Dave Jiang <dave.jiang@intel.com>
To: vkoul@kernel.org, megha.dey@intel.com, maz@kernel.org,
bhelgaas@google.com, rafael@kernel.org,
gregkh@linuxfoundation.org, tglx@linutronix.de, hpa@zytor.com,
alex.williamson@redhat.com, jacob.jun.pan@intel.com,
ashok.raj@intel.com, jgg@mellanox.com, yi.l.liu@intel.com,
baolu.lu@intel.com, kevin.tian@intel.com,
sanjay.k.kumar@intel.com, tony.luck@intel.com,
jing.lin@intel.com, dan.j.williams@intel.com,
kwankhede@nvidia.com, eric.auger@redhat.com, parav@mellanox.com,
jgg@mellanox.com, rafael@kernel.org, dave.hansen@intel.com,
netanelg@mellanox.com, shahafs@mellanox.com,
yan.y.zhao@linux.intel.com, pbonzini@redhat.com,
samuel.ortiz@intel.com, mona.hossain@intel.com
Cc: dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org,
x86@kernel.org, linux-pci@vger.kernel.org, kvm@vger.kernel.org
Subject: [PATCH RFC v2 12/18] dmaengine: idxd: virtual device commands emulation
Date: Tue, 21 Jul 2020 09:03:34 -0700 [thread overview]
Message-ID: <159534741398.28840.9899761904385942767.stgit@djiang5-desk3.ch.intel.com> (raw)
In-Reply-To: <159534667974.28840.2045034360240786644.stgit@djiang5-desk3.ch.intel.com>
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>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
---
drivers/dma/idxd/registers.h | 16 +-
drivers/dma/idxd/vdev.c | 398 ++++++++++++++++++++++++++++++++++++++++++
2 files changed, 409 insertions(+), 5 deletions(-)
diff --git a/drivers/dma/idxd/registers.h b/drivers/dma/idxd/registers.h
index f8e4dd10a738..6531a40fad2e 100644
--- a/drivers/dma/idxd/registers.h
+++ b/drivers/dma/idxd/registers.h
@@ -115,7 +115,8 @@ 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;
@@ -137,6 +138,8 @@ 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,
@@ -149,6 +152,7 @@ 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 {
@@ -160,6 +164,7 @@ union idxd_command_reg {
};
u32 bits;
} __packed;
+#define IDXD_CMD_INT_MASK 0x80000000
enum idxd_cmd {
IDXD_CMD_ENABLE_DEVICE = 1,
@@ -217,7 +222,7 @@ 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,
@@ -353,4 +358,11 @@ union wqcfg {
#define WQCFG_OFFSET(idxd_dev, n, ofs) ((idxd_dev)->wqcfg_offset +\
(n) * sizeof(union wqcfg) +\
sizeof(u32) * (ofs))
+
+enum idxd_wq_hw_state {
+ IDXD_WQ_DEV_DISABLED = 0,
+ IDXD_WQ_DEV_ENABLED,
+ IDXD_WQ_DEV_BUSY,
+};
+
#endif
diff --git a/drivers/dma/idxd/vdev.c b/drivers/dma/idxd/vdev.c
index b4eace02199e..df99d0bce5e9 100644
--- a/drivers/dma/idxd/vdev.c
+++ b/drivers/dma/idxd/vdev.c
@@ -81,6 +81,18 @@ static void vidxd_report_error(struct vdcm_idxd *vidxd, unsigned int error)
}
}
+static int idxd_get_mdev_pasid(struct mdev_device *mdev)
+{
+ struct iommu_domain *domain;
+ struct device *dev = mdev_dev(mdev);
+
+ domain = mdev_get_iommu_domain(dev);
+ if (!domain)
+ return -EINVAL;
+
+ return iommu_aux_get_pasid(domain, dev->parent);
+}
+
int vidxd_mmio_write(struct vdcm_idxd *vidxd, u64 pos, void *buf, unsigned int size)
{
u32 offset = pos & (vidxd->bar_size[0] - 1);
@@ -474,15 +486,395 @@ 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, 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 vidx)
+{
+ bool ims = (vidx >> 16) & 1;
+ u32 cmdsts;
+ struct mdev_device *mdev = vidxd->vdev.mdev;
+ struct device *dev = mdev_dev(mdev);
+
+ vidx = vidx & 0xffff;
+
+ dev_dbg(dev, "allocating int handle for %x\n", vidx);
+
+ if (vidx != 1) {
+ 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);
+ } else {
+ vidx--; /* MSIX idx 0 is a slow path interrupt */
+ cmdsts = vidxd->ims_index[vidx] << 8;
+ dev_dbg(dev, "int handle %d:%lld\n", vidx, vidxd->ims_index[vidx]);
+ idxd_complete_command(vidxd, cmdsts);
+ }
+}
+
+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;
+ int wq_pasid;
+ u32 status;
+ int priv;
+
+ 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;
+ }
+
+ wq_pasid = idxd_get_mdev_pasid(mdev);
+ priv = 1;
+
+ if (wq_pasid >= 0) {
+ wqcfg->bits[2] &= ~0x3fffff00;
+ 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;
+ }
+ } else {
+ dev_err(dev, "idxd pasid setup failed wq %d wq_pasid %d\n", wq->id, wq_pasid);
+ idxd_complete_command(vidxd, IDXD_CMDSTS_ERR_PASID_EN);
+ 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);
}
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);
+
+ 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;
+ default:
+ idxd_complete_command(vidxd, IDXD_CMDSTS_INVAL_CMD);
+ break;
+ }
}
next prev parent reply other threads:[~2020-07-21 16:03 UTC|newest]
Thread overview: 97+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-21 16:02 [PATCH RFC v2 00/18] Add VFIO mediated device support and DEV-MSI support for the idxd driver Dave Jiang
2020-07-21 16:02 ` [PATCH RFC v2 01/18] platform-msi: Introduce platform_msi_ops Dave Jiang
2020-07-21 16:02 ` [PATCH RFC v2 02/18] irq/dev-msi: Add support for a new DEV_MSI irq domain Dave Jiang
2020-07-21 16:13 ` Jason Gunthorpe
2020-07-22 16:50 ` Dey, Megha
2020-07-22 18:52 ` Marc Zyngier
2020-07-22 19:59 ` Jason Gunthorpe
2020-07-23 8:51 ` Marc Zyngier
2020-07-24 0:16 ` Jason Gunthorpe
2020-07-24 0:36 ` Thomas Gleixner
2020-08-05 19:18 ` Dey, Megha
2020-08-05 22:15 ` Jason Gunthorpe
2020-08-05 22:36 ` Dey, Megha
2020-08-05 22:53 ` Jason Gunthorpe
2020-08-06 0:13 ` Dey, Megha
2020-08-06 0:19 ` Jason Gunthorpe
2020-08-06 0:32 ` Dey, Megha
2020-08-06 0:46 ` Jason Gunthorpe
2020-08-06 17:10 ` Thomas Gleixner
2020-08-06 17:58 ` Dey, Megha
2020-08-06 20:21 ` Thomas Gleixner
2020-08-06 22:27 ` Dey, Megha
2020-08-07 8:48 ` Thomas Gleixner
2020-08-07 12:06 ` Jason Gunthorpe
2020-08-07 12:38 ` gregkh
2020-08-07 13:34 ` Jason Gunthorpe
2020-08-07 16:47 ` Thomas Gleixner
2020-08-07 17:54 ` Dey, Megha
2020-08-07 18:39 ` Jason Gunthorpe
2020-08-07 20:31 ` Dey, Megha
2020-08-08 19:47 ` Thomas Gleixner
2020-08-10 21:46 ` Thomas Gleixner
2020-08-11 9:53 ` Thomas Gleixner
2020-08-11 18:46 ` Dey, Megha
2020-08-11 21:25 ` Thomas Gleixner
2020-08-11 18:39 ` Dey, Megha
2020-08-11 22:39 ` Thomas Gleixner
2020-08-07 15:22 ` Thomas Gleixner
2020-08-05 18:55 ` Dey, Megha
2020-07-21 16:02 ` [PATCH RFC v2 03/18] irq/dev-msi: Create IR-DEV-MSI " Dave Jiang
2020-07-21 16:21 ` Jason Gunthorpe
2020-07-22 17:03 ` Dey, Megha
2020-07-22 17:33 ` Jason Gunthorpe
2020-07-22 20:44 ` Thomas Gleixner
2020-08-05 19:02 ` Dey, Megha
2020-07-21 16:02 ` [PATCH RFC v2 04/18] irq/dev-msi: Introduce APIs to allocate/free dev-msi interrupts Dave Jiang
2020-07-21 16:25 ` Jason Gunthorpe
2020-07-22 17:05 ` Dey, Megha
2020-07-22 17:35 ` Jason Gunthorpe
2020-08-05 20:19 ` Dey, Megha
2020-07-21 16:02 ` [PATCH RFC v2 05/18] dmaengine: idxd: add support for readonly config devices Dave Jiang
2020-07-21 16:02 ` [PATCH RFC v2 06/18] dmaengine: idxd: add interrupt handle request support Dave Jiang
2020-07-21 16:03 ` [PATCH RFC v2 07/18] dmaengine: idxd: add DEV-MSI support in base driver Dave Jiang
2020-07-21 16:03 ` [PATCH RFC v2 08/18] dmaengine: idxd: add device support functions in prep for mdev Dave Jiang
2020-07-21 16:03 ` [PATCH RFC v2 09/18] dmaengine: idxd: add basic mdev registration and helper functions Dave Jiang
2020-07-21 16:03 ` [PATCH RFC v2 10/18] dmaengine: idxd: add emulation rw routines Dave Jiang
2020-07-21 16:03 ` [PATCH RFC v2 11/18] dmaengine: idxd: prep for virtual device commands Dave Jiang
2020-07-21 16:03 ` Dave Jiang [this message]
2020-07-21 16:03 ` [PATCH RFC v2 13/18] dmaengine: idxd: ims setup for the vdcm Dave Jiang
2020-07-21 16:03 ` [PATCH RFC v2 14/18] dmaengine: idxd: add mdev type as a new wq type Dave Jiang
2020-07-21 16:03 ` [PATCH RFC v2 15/18] dmaengine: idxd: add dedicated wq mdev type Dave Jiang
2020-07-21 16:04 ` [PATCH RFC v2 16/18] dmaengine: idxd: add new wq state for mdev Dave Jiang
2020-07-21 16:04 ` [PATCH RFC v2 17/18] dmaengine: idxd: add error notification from host driver to mediated device Dave Jiang
2020-07-21 16:04 ` [PATCH RFC v2 18/18] dmaengine: idxd: add ABI documentation for mediated device support Dave Jiang
2020-07-21 16:28 ` [PATCH RFC v2 00/18] Add VFIO mediated device support and DEV-MSI support for the idxd driver Greg KH
2020-07-21 17:17 ` Dave Jiang
2020-07-21 21:35 ` Dan Williams
2020-07-21 16:45 ` Jason Gunthorpe
2020-07-21 18:00 ` Dave Jiang
2020-07-22 17:31 ` Dey, Megha
2020-07-22 18:16 ` Jason Gunthorpe
2020-07-21 23:54 ` Tian, Kevin
2020-07-24 0:19 ` Jason Gunthorpe
2020-08-06 1:22 ` Alex Williamson
2020-08-07 12:19 ` Jason Gunthorpe
2020-08-10 7:32 ` Tian, Kevin
2020-08-11 17:00 ` Alex Williamson
2020-08-12 1:58 ` Tian, Kevin
2020-08-12 2:36 ` Alex Williamson
2020-08-12 3:35 ` Tian, Kevin
2020-08-12 3:28 ` Jason Wang
2020-08-12 4:05 ` Tian, Kevin
2020-08-13 4:33 ` Jason Wang
2020-08-13 5:26 ` Tian, Kevin
2020-08-13 6:01 ` Jason Wang
2020-08-14 13:23 ` Jason Gunthorpe
2020-08-17 2:24 ` Tian, Kevin
2020-08-14 13:35 ` Jason Gunthorpe
2020-08-17 2:12 ` Tian, Kevin
2020-08-18 0:43 ` Jason Gunthorpe
2020-08-18 1:09 ` Tian, Kevin
2020-08-18 11:50 ` Jason Gunthorpe
2020-08-18 16:27 ` Paolo Bonzini
2020-08-18 16:49 ` Jason Gunthorpe
2020-08-18 17:05 ` Paolo Bonzini
2020-08-18 17:18 ` Jason Gunthorpe
2020-08-19 7:29 ` Tian, Kevin
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