From: Dave Jiang <dave.jiang@intel.com>
To: alex.williamson@redhat.com, kwankhede@nvidia.com,
tglx@linutronix.de, vkoul@kernel.org, jgg@mellanox.com
Cc: megha.dey@intel.com, jacob.jun.pan@intel.com,
ashok.raj@intel.com, yi.l.liu@intel.com, baolu.lu@intel.com,
kevin.tian@intel.com, sanjay.k.kumar@intel.com,
tony.luck@intel.com, dan.j.williams@intel.com,
eric.auger@redhat.com, pbonzini@redhat.com,
dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org,
kvm@vger.kernel.org
Subject: [PATCH v6 10/20] vfio/mdev: idxd: add mdev type as a new wq type
Date: Fri, 21 May 2021 17:20:07 -0700 [thread overview]
Message-ID: <162164280754.261970.2354155734920115161.stgit@djiang5-desk3.ch.intel.com> (raw)
In-Reply-To: <162164243591.261970.3439987543338120797.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 | 6 ++++++
drivers/dma/idxd/sysfs.c | 5 +++++
2 files changed, 11 insertions(+)
diff --git a/drivers/dma/idxd/idxd.h b/drivers/dma/idxd/idxd.h
index 34ffa6dad53a..cbb046c2921f 100644
--- a/drivers/dma/idxd/idxd.h
+++ b/drivers/dma/idxd/idxd.h
@@ -129,6 +129,7 @@ enum idxd_wq_type {
IDXD_WQT_NONE = 0,
IDXD_WQT_KERNEL,
IDXD_WQT_USER,
+ IDXD_WQT_MDEV,
};
struct idxd_cdev {
@@ -424,6 +425,11 @@ static inline bool is_idxd_wq_user(struct idxd_wq *wq)
return wq->type == IDXD_WQT_USER;
}
+static inline bool is_idxd_wq_mdev(struct idxd_wq *wq)
+{
+ return (wq->type == IDXD_WQT_MDEV);
+}
+
static inline bool wq_dedicated(struct idxd_wq *wq)
{
return test_bit(WQ_FLAG_DEDICATED, &wq->flags);
diff --git a/drivers/dma/idxd/sysfs.c b/drivers/dma/idxd/sysfs.c
index 6583c9c2e992..3d3a84be2c9b 100644
--- a/drivers/dma/idxd/sysfs.c
+++ b/drivers/dma/idxd/sysfs.c
@@ -17,6 +17,7 @@ static char *idxd_wq_type_names[] = {
[IDXD_WQT_NONE] = "none",
[IDXD_WQT_KERNEL] = "kernel",
[IDXD_WQT_USER] = "user",
+ [IDXD_WQT_MDEV] = "mdev",
};
static bool is_idxd_dev_drv(struct device_driver *drv)
@@ -860,6 +861,8 @@ static ssize_t wq_type_show(struct device *dev,
return sysfs_emit(buf, "%s\n", idxd_wq_type_names[IDXD_WQT_KERNEL]);
case IDXD_WQT_USER:
return sysfs_emit(buf, "%s\n", idxd_wq_type_names[IDXD_WQT_USER]);
+ case IDXD_WQT_MDEV:
+ return sysfs_emit(buf, "%s\n", idxd_wq_type_names[IDXD_WQT_MDEV]);
case IDXD_WQT_NONE:
default:
return sysfs_emit(buf, "%s\n", idxd_wq_type_names[IDXD_WQT_NONE]);
@@ -885,6 +888,8 @@ 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:[~2021-05-22 0:20 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-22 0:19 [PATCH v6 00/20] Add VFIO mediated device support and DEV-MSI support for the idxd driver Dave Jiang
2021-05-22 0:19 ` [PATCH v6 01/20] vfio/mdev: idxd: add theory of operation documentation for idxd mdev Dave Jiang
2021-05-22 0:19 ` [PATCH v6 02/20] dmaengine: idxd: add external module driver support for dsa_bus_type Dave Jiang
2021-05-22 0:19 ` [PATCH v6 03/20] dmaengine: idxd: add IMS offset and size retrieval code Dave Jiang
2021-05-22 0:19 ` [PATCH v6 04/20] dmaengine: idxd: add portal offset for IMS portals Dave Jiang
2021-05-22 0:19 ` [PATCH v6 05/20] vfio: mdev: common lib code for setting up Interrupt Message Store Dave Jiang
2021-05-24 0:02 ` Jason Gunthorpe
2021-05-28 1:49 ` Dave Jiang
2021-05-28 12:21 ` Jason Gunthorpe
2021-05-28 16:37 ` Dave Jiang
2021-05-28 16:39 ` Jason Gunthorpe
2021-05-31 10:41 ` Thomas Gleixner
2021-05-31 13:48 ` Thomas Gleixner
2021-05-31 15:24 ` Jason Gunthorpe
2021-06-08 15:57 ` Dave Jiang
2021-06-08 17:22 ` Jason Gunthorpe
2021-06-10 13:00 ` Thomas Gleixner
2021-05-22 0:19 ` [PATCH v6 06/20] vfio/mdev: idxd: add PCI config for read/write for mdev Dave Jiang
2021-05-22 0:19 ` [PATCH v6 07/20] vfio/mdev: idxd: Add administrative commands emulation " Dave Jiang
2021-05-22 0:19 ` [PATCH v6 08/20] vfio/mdev: idxd: Add mdev device context initialization Dave Jiang
2021-05-22 0:20 ` [PATCH v6 09/20] vfio/mdev: Add mmio read/write support for mdev Dave Jiang
2021-05-22 0:20 ` Dave Jiang [this message]
2021-05-22 0:20 ` [PATCH v6 11/20] vfio/mdev: idxd: Add basic driver setup for idxd mdev Dave Jiang
2021-05-23 23:27 ` Jason Gunthorpe
2021-05-23 23:52 ` Jason Gunthorpe
2021-05-22 0:20 ` [PATCH v6 12/20] vfio: move VFIO PCI macros to common header Dave Jiang
2021-06-04 3:47 ` Alex Williamson
2021-05-22 0:20 ` [PATCH v6 13/20] vfio/mdev: idxd: add mdev driver registration and helper functions Dave Jiang
2021-05-23 23:32 ` Jason Gunthorpe
2021-05-23 23:46 ` Jason Gunthorpe
2021-05-22 0:20 ` [PATCH v6 14/20] vfio/mdev: idxd: add 1dwq-v1 mdev type Dave Jiang
2021-05-23 23:47 ` Jason Gunthorpe
2021-05-22 0:20 ` [PATCH v6 15/20] vfio/mdev: idxd: ims domain setup for the vdcm Dave Jiang
2021-05-23 23:50 ` Jason Gunthorpe
2021-05-27 0:22 ` Dave Jiang
2021-05-27 0:54 ` Jason Gunthorpe
2021-05-27 1:15 ` Dave Jiang
2021-05-27 1:41 ` Raj, Ashok
2021-05-27 13:36 ` Jason Gunthorpe
2021-05-31 14:02 ` Thomas Gleixner
2021-05-31 16:57 ` Jason Gunthorpe
2021-05-31 23:55 ` Thomas Gleixner
2021-06-01 12:16 ` Jason Gunthorpe
2021-05-22 0:20 ` [PATCH v6 16/20] vfio/mdev: idxd: add new wq state for mdev Dave Jiang
2021-05-22 0:20 ` [PATCH v6 17/20] vfio/mdev: idxd: add error notification from host driver to mediated device Dave Jiang
2021-05-22 0:20 ` [PATCH v6 18/20] vfio: move vfio_pci_set_ctx_trigger_single to common code Dave Jiang
2021-05-22 0:21 ` [PATCH v6 19/20] vfio: mdev: Add device request interface Dave Jiang
2021-05-23 22:38 ` Jason Gunthorpe
2021-05-22 0:21 ` [PATCH v6 20/20] vfio: mdev: idxd: setup request interrupt Dave Jiang
2021-05-23 23:22 ` [PATCH v6 00/20] Add VFIO mediated device support and DEV-MSI support for the idxd driver Jason Gunthorpe
2021-06-02 15:40 ` Dave Jiang
2021-06-02 23:17 ` Jason Gunthorpe
2021-06-03 1:11 ` Tian, Kevin
2021-06-03 1:49 ` Jason Gunthorpe
2021-06-03 5:52 ` Tian, Kevin
2021-06-03 11:23 ` Jason Gunthorpe
2021-06-04 3:40 ` Alex Williamson
2021-06-07 6:22 ` Tian, Kevin
2021-06-07 18:13 ` Dave Jiang
2021-06-07 19:11 ` Jason Gunthorpe
2021-06-08 16:02 ` Dave Jiang
2021-06-11 18:21 ` Dave Jiang
2021-06-11 18:29 ` Jason Gunthorpe
2021-06-07 18:28 ` Jason Gunthorpe
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