From: Dave Jiang <dave.jiang@intel.com>
To: vkoul@kernel.org, megha.dey@intel.com, maz@kernel.org,
bhelgaas@google.com, tglx@linutronix.de,
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, 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,
linux-pci@vger.kernel.org, kvm@vger.kernel.org
Subject: [PATCH v4 14/17] dmaengine: idxd: add mdev type as a new wq type
Date: Fri, 30 Oct 2020 11:52:25 -0700 [thread overview]
Message-ID: <160408394597.912050.15142293272388686868.stgit@djiang5-desk3.ch.intel.com> (raw)
In-Reply-To: <160408357912.912050.17005584526266191420.stgit@djiang5-desk3.ch.intel.com>
Add "mdev" wq type and support helpers. The mdev wq type marks the wq
to be utilized as a VFIO mediated device.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
---
drivers/dma/idxd/idxd.h | 2 ++
drivers/dma/idxd/sysfs.c | 13 +++++++++++--
2 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/drivers/dma/idxd/idxd.h b/drivers/dma/idxd/idxd.h
index 72c30826f1bb..4e583fdd15d2 100644
--- a/drivers/dma/idxd/idxd.h
+++ b/drivers/dma/idxd/idxd.h
@@ -72,6 +72,7 @@ enum idxd_wq_type {
IDXD_WQT_NONE = 0,
IDXD_WQT_KERNEL,
IDXD_WQT_USER,
+ IDXD_WQT_MDEV,
};
struct idxd_cdev {
@@ -321,6 +322,7 @@ void idxd_cleanup_sysfs(struct idxd_device *idxd);
int idxd_register_driver(void);
void idxd_unregister_driver(void);
struct bus_type *idxd_get_bus_type(struct idxd_device *idxd);
+bool is_idxd_wq_mdev(struct idxd_wq *wq);
/* device interrupt control */
irqreturn_t idxd_irq_handler(int vec, void *data);
diff --git a/drivers/dma/idxd/sysfs.c b/drivers/dma/idxd/sysfs.c
index fe5f95509c5c..5b79d9019f2e 100644
--- a/drivers/dma/idxd/sysfs.c
+++ b/drivers/dma/idxd/sysfs.c
@@ -14,6 +14,7 @@ static char *idxd_wq_type_names[] = {
[IDXD_WQT_NONE] = "none",
[IDXD_WQT_KERNEL] = "kernel",
[IDXD_WQT_USER] = "user",
+ [IDXD_WQT_MDEV] = "mdev",
};
static void idxd_conf_device_release(struct device *dev)
@@ -69,6 +70,11 @@ static inline bool is_idxd_wq_cdev(struct idxd_wq *wq)
return wq->type == IDXD_WQT_USER;
}
+inline bool is_idxd_wq_mdev(struct idxd_wq *wq)
+{
+ return wq->type == IDXD_WQT_MDEV ? true : false;
+}
+
static int idxd_config_bus_match(struct device *dev,
struct device_driver *drv)
{
@@ -1094,8 +1100,9 @@ static ssize_t wq_type_show(struct device *dev,
return sprintf(buf, "%s\n",
idxd_wq_type_names[IDXD_WQT_KERNEL]);
case IDXD_WQT_USER:
- return sprintf(buf, "%s\n",
- idxd_wq_type_names[IDXD_WQT_USER]);
+ return sprintf(buf, "%s\n", idxd_wq_type_names[IDXD_WQT_USER]);
+ case IDXD_WQT_MDEV:
+ return sprintf(buf, "%s\n", idxd_wq_type_names[IDXD_WQT_MDEV]);
case IDXD_WQT_NONE:
default:
return sprintf(buf, "%s\n",
@@ -1122,6 +1129,8 @@ static ssize_t wq_type_store(struct device *dev,
wq->type = IDXD_WQT_KERNEL;
else if (sysfs_streq(buf, idxd_wq_type_names[IDXD_WQT_USER]))
wq->type = IDXD_WQT_USER;
+ else if (sysfs_streq(buf, idxd_wq_type_names[IDXD_WQT_MDEV]))
+ wq->type = IDXD_WQT_MDEV;
else
return -EINVAL;
next prev parent reply other threads:[~2020-10-30 18:52 UTC|newest]
Thread overview: 123+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-30 18:50 [PATCH v4 00/17] Add VFIO mediated device support and DEV-MSI support for the idxd driver Dave Jiang
2020-10-30 18:50 ` [PATCH v4 01/17] irqchip: Add IMS (Interrupt Message Store) driver Dave Jiang
2020-10-30 22:01 ` Thomas Gleixner
2020-10-30 18:51 ` [PATCH v4 02/17] iommu/vt-d: Add DEV-MSI support Dave Jiang
2020-10-30 20:31 ` Thomas Gleixner
2020-10-30 20:52 ` Dave Jiang
2020-10-30 18:51 ` [PATCH v4 03/17] dmaengine: idxd: add theory of operation documentation for idxd mdev Dave Jiang
2020-10-30 18:51 ` [PATCH v4 04/17] dmaengine: idxd: add support for readonly config devices Dave Jiang
2020-10-30 18:51 ` [PATCH v4 05/17] dmaengine: idxd: add interrupt handle request support Dave Jiang
2020-10-30 18:51 ` [PATCH v4 06/17] PCI: add SIOV and IMS capability detection Dave Jiang
2020-10-30 19:51 ` Bjorn Helgaas
2020-10-30 21:20 ` Dave Jiang
2020-10-30 21:50 ` Bjorn Helgaas
2020-10-30 22:45 ` Jason Gunthorpe
2020-10-30 22:49 ` Dave Jiang
2020-11-02 13:21 ` Jason Gunthorpe
2020-11-03 2:49 ` Tian, Kevin
2020-11-03 12:43 ` Jason Gunthorpe
2020-11-04 3:41 ` Tian, Kevin
2020-11-04 12:40 ` Jason Gunthorpe
2020-11-04 13:34 ` Tian, Kevin
2020-11-04 13:54 ` Jason Gunthorpe
2020-11-06 9:48 ` Tian, Kevin
2020-11-06 13:14 ` Jason Gunthorpe
2020-11-06 16:48 ` Raj, Ashok
2020-11-06 17:51 ` Jason Gunthorpe
2020-11-06 23:47 ` Dan Williams
2020-11-07 0:12 ` Jason Gunthorpe
2020-11-07 1:42 ` Dan Williams
2020-11-08 18:11 ` Raj, Ashok
2020-11-08 18:34 ` David Woodhouse
2020-11-08 23:25 ` Raj, Ashok
2020-11-10 14:19 ` Raj, Ashok
2020-11-10 14:41 ` David Woodhouse
2020-11-08 23:41 ` Jason Gunthorpe
2020-11-09 0:05 ` Raj, Ashok
2020-11-08 18:47 ` Thomas Gleixner
2020-11-08 19:36 ` David Woodhouse
2020-11-08 22:47 ` Thomas Gleixner
2020-11-08 23:29 ` Jason Gunthorpe
2020-11-11 15:41 ` Christoph Hellwig
2020-11-11 16:09 ` Raj, Ashok
2020-11-11 22:27 ` Thomas Gleixner
2020-11-11 23:03 ` Raj, Ashok
2020-11-12 1:13 ` Thomas Gleixner
2020-11-12 13:10 ` Jason Gunthorpe
2020-11-08 23:23 ` Jason Gunthorpe
2020-11-08 23:36 ` Raj, Ashok
2020-11-09 7:37 ` Tian, Kevin
2020-11-09 16:46 ` Jason Gunthorpe
2020-11-08 23:58 ` Raj, Ashok
2020-11-09 7:59 ` Tian, Kevin
2020-11-09 11:21 ` Thomas Gleixner
2020-11-09 17:30 ` Jason Gunthorpe
2020-11-09 22:40 ` Raj, Ashok
2020-11-09 22:42 ` Thomas Gleixner
2020-11-10 5:14 ` Raj, Ashok
2020-11-10 10:27 ` Thomas Gleixner
2020-11-10 14:13 ` Raj, Ashok
2020-11-10 14:23 ` Jason Gunthorpe
2020-11-11 2:17 ` Tian, Kevin
2020-11-12 13:46 ` Jason Gunthorpe
2020-11-11 7:14 ` Tian, Kevin
2020-11-12 19:32 ` Konrad Rzeszutek Wilk
2020-11-12 22:42 ` Thomas Gleixner
2020-11-13 2:42 ` Tian, Kevin
2020-11-13 12:57 ` Jason Gunthorpe
2020-11-13 13:32 ` Thomas Gleixner
2020-11-13 16:12 ` Luck, Tony
2020-11-13 17:38 ` Raj, Ashok
2020-11-14 10:34 ` Christoph Hellwig
2020-11-14 21:18 ` Raj, Ashok
2020-11-15 11:26 ` Thomas Gleixner
2020-11-15 19:31 ` Raj, Ashok
2020-11-15 22:11 ` Thomas Gleixner
2020-11-16 0:22 ` Raj, Ashok
2020-11-16 7:31 ` Tian, Kevin
2020-11-16 15:46 ` Jason Gunthorpe
2020-11-16 17:56 ` Thomas Gleixner
2020-11-16 18:02 ` Jason Gunthorpe
2020-11-16 20:37 ` Thomas Gleixner
2020-11-16 23:51 ` Tian, Kevin
2020-11-17 9:21 ` Thomas Gleixner
2020-11-16 8:25 ` Christoph Hellwig
2020-11-10 14:19 ` Jason Gunthorpe
2020-11-11 2:35 ` Tian, Kevin
2020-11-08 21:18 ` Thomas Gleixner
2020-11-08 22:09 ` David Woodhouse
2020-11-08 22:52 ` Thomas Gleixner
2020-11-07 0:32 ` Thomas Gleixner
2020-11-09 5:25 ` Tian, Kevin
2020-10-30 18:51 ` [PATCH v4 07/17] dmaengine: idxd: add IMS support in base driver Dave Jiang
2020-10-30 18:51 ` [PATCH v4 08/17] dmaengine: idxd: add device support functions in prep for mdev Dave Jiang
2020-10-30 18:51 ` [PATCH v4 09/17] dmaengine: idxd: add basic mdev registration and helper functions Dave Jiang
2020-10-30 18:51 ` [PATCH v4 10/17] dmaengine: idxd: add emulation rw routines Dave Jiang
2020-10-30 18:52 ` [PATCH v4 11/17] dmaengine: idxd: prep for virtual device commands Dave Jiang
2020-10-30 18:52 ` [PATCH v4 12/17] dmaengine: idxd: virtual device commands emulation Dave Jiang
2020-10-30 18:52 ` [PATCH v4 13/17] dmaengine: idxd: ims setup for the vdcm Dave Jiang
2020-10-30 21:26 ` Thomas Gleixner
2020-10-30 18:52 ` Dave Jiang [this message]
2020-10-30 18:52 ` [PATCH v4 15/17] dmaengine: idxd: add dedicated wq mdev type Dave Jiang
2020-10-30 18:52 ` [PATCH v4 16/17] dmaengine: idxd: add new wq state for mdev Dave Jiang
2020-10-30 18:52 ` [PATCH v4 17/17] dmaengine: idxd: add error notification from host driver to mediated device Dave Jiang
2020-10-30 18:58 ` [PATCH v4 00/17] Add VFIO mediated device support and DEV-MSI support for the idxd driver Jason Gunthorpe
2020-10-30 19:13 ` Dave Jiang
2020-10-30 19:17 ` Jason Gunthorpe
2020-10-30 19:23 ` Raj, Ashok
2020-10-30 19:30 ` Jason Gunthorpe
2020-10-30 20:43 ` Raj, Ashok
2020-10-30 22:54 ` Jason Gunthorpe
2020-10-31 2:50 ` Thomas Gleixner
2020-10-31 23:53 ` Raj, Ashok
2020-11-02 13:20 ` Jason Gunthorpe
2020-11-02 16:20 ` Raj, Ashok
2020-11-02 17:19 ` Jason Gunthorpe
2020-11-02 18:18 ` Dave Jiang
2020-11-02 18:26 ` Jason Gunthorpe
2020-11-02 18:38 ` Dan Williams
2020-11-02 18:51 ` Jason Gunthorpe
2020-11-02 19:26 ` Dan Williams
2020-10-30 20:48 ` Thomas Gleixner
2020-10-30 20:59 ` Dave Jiang
2020-10-30 22:10 ` Thomas Gleixner
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