From: Thomas Monjalon <thomas@monjalon.net>
To: dev@dpdk.org
Cc: dmitry.kozliuk@gmail.com, stable@dpdk.org,
Tal Shnaiderman <talshn@mellanox.com>,
Ranjit Menon <ranjit.menon@intel.com>,
Narcisa Vasile <navasile@linux.microsoft.com>,
Pallavi Kadam <pallavi.kadam@intel.com>,
John Alexander <john.alexander@datapath.co.uk>
Subject: [dpdk-stable] [PATCH v2] bus/pci: fix Windows kernel driver categories
Date: Thu, 18 Mar 2021 11:48:07 +0100 [thread overview]
Message-ID: <20210318104807.1882334-1-thomas@monjalon.net> (raw)
In-Reply-To: <20210316231153.724029-1-thomas@monjalon.net>
In Windows probing, the value RTE_PCI_KDRV_NONE was used
instead of RTE_PCI_KDRV_UNKNOWN.
This value covers the mlx case where the kernel driver is in place,
offering a bifurcated mode to the userspace driver.
When the kernel driver is listed as unknown,
there is no special treatment in DPDK probing, contrary to UIO modes.
The value RTE_PCI_KDRV_NIC_UIO (FreeBSD) was re-used
instead of having a new RTE_PCI_KDRV_NET_UIO for Windows NetUIO.
While adding the new value RTE_PCI_KDRV_NET_UIO
(at the end for ABI compatibility),
the enum of kernel driver categories is annotated.
Fixes: b762221ac24f ("bus/pci: support Windows with bifurcated drivers")
Fixes: c76ec01b4591 ("bus/pci: support netuio on Windows")
Cc: stable@dpdk.org
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
---
v2: improve comments and commit message
---
drivers/bus/pci/rte_bus_pci.h | 13 +++++++------
drivers/bus/pci/windows/pci.c | 14 +++++++-------
2 files changed, 14 insertions(+), 13 deletions(-)
diff --git a/drivers/bus/pci/rte_bus_pci.h b/drivers/bus/pci/rte_bus_pci.h
index fdda046515..876abddefb 100644
--- a/drivers/bus/pci/rte_bus_pci.h
+++ b/drivers/bus/pci/rte_bus_pci.h
@@ -52,12 +52,13 @@ TAILQ_HEAD(rte_pci_driver_list, rte_pci_driver);
struct rte_devargs;
enum rte_pci_kernel_driver {
- RTE_PCI_KDRV_UNKNOWN = 0,
- RTE_PCI_KDRV_IGB_UIO,
- RTE_PCI_KDRV_VFIO,
- RTE_PCI_KDRV_UIO_GENERIC,
- RTE_PCI_KDRV_NIC_UIO,
- RTE_PCI_KDRV_NONE,
+ RTE_PCI_KDRV_UNKNOWN = 0, /* may be misc UIO or bifurcated driver */
+ RTE_PCI_KDRV_IGB_UIO, /* igb_uio for Linux */
+ RTE_PCI_KDRV_VFIO, /* VFIO for Linux */
+ RTE_PCI_KDRV_UIO_GENERIC, /* uio_pci_generic for Linux */
+ RTE_PCI_KDRV_NIC_UIO, /* nic_uio for FreeBSD */
+ RTE_PCI_KDRV_NONE, /* no attached driver */
+ RTE_PCI_KDRV_NET_UIO, /* NetUIO for Windows */
};
/**
diff --git a/drivers/bus/pci/windows/pci.c b/drivers/bus/pci/windows/pci.c
index 8f906097f4..d39a7748b8 100644
--- a/drivers/bus/pci/windows/pci.c
+++ b/drivers/bus/pci/windows/pci.c
@@ -38,7 +38,7 @@ rte_pci_map_device(struct rte_pci_device *dev)
* Devices that are bound to netuio are mapped at
* the bus probing stage.
*/
- if (dev->kdrv == RTE_PCI_KDRV_NIC_UIO)
+ if (dev->kdrv == RTE_PCI_KDRV_NET_UIO)
return 0;
else
return -1;
@@ -207,14 +207,14 @@ get_device_resource_info(HDEVINFO dev_info,
int ret;
switch (dev->kdrv) {
- case RTE_PCI_KDRV_NONE:
- /* mem_resource - Unneeded for RTE_PCI_KDRV_NONE */
+ case RTE_PCI_KDRV_UNKNOWN:
+ /* bifurcated driver case - mem_resource is unneeded */
dev->mem_resource[0].phys_addr = 0;
dev->mem_resource[0].len = 0;
dev->mem_resource[0].addr = NULL;
break;
- case RTE_PCI_KDRV_NIC_UIO:
- /* get device info from netuio kernel driver */
+ case RTE_PCI_KDRV_NET_UIO:
+ /* get device info from NetUIO kernel driver */
ret = get_netuio_device_info(dev_info, dev_info_data, dev);
if (ret != 0) {
RTE_LOG(DEBUG, EAL,
@@ -323,9 +323,9 @@ set_kernel_driver_type(PSP_DEVINFO_DATA device_info_data,
{
/* set kernel driver type based on device class */
if (IsEqualGUID(&(device_info_data->ClassGuid), &GUID_DEVCLASS_NETUIO))
- dev->kdrv = RTE_PCI_KDRV_NIC_UIO;
+ dev->kdrv = RTE_PCI_KDRV_NET_UIO;
else
- dev->kdrv = RTE_PCI_KDRV_NONE;
+ dev->kdrv = RTE_PCI_KDRV_UNKNOWN;
}
static int
--
2.30.1
next prev parent reply other threads:[~2021-03-18 10:48 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-16 23:11 [dpdk-stable] [PATCH] " Thomas Monjalon
2021-03-17 22:43 ` Dmitry Kozlyuk
2021-03-18 7:43 ` Thomas Monjalon
2021-03-17 23:17 ` Ranjit Menon
2021-03-18 7:49 ` Thomas Monjalon
2021-03-18 22:00 ` Ranjit Menon
2021-03-18 8:36 ` [dpdk-stable] [dpdk-dev] " Slava Ovsiienko
2021-03-18 10:45 ` Thomas Monjalon
2021-03-18 10:48 ` Thomas Monjalon [this message]
2021-03-18 12:00 ` [dpdk-stable] [PATCH v2] " Tal Shnaiderman
2021-03-18 22:07 ` Ranjit Menon
2021-03-19 15:24 ` [dpdk-stable] [dpdk-dev] " Thomas Monjalon
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210318104807.1882334-1-thomas@monjalon.net \
--to=thomas@monjalon.net \
--cc=dev@dpdk.org \
--cc=dmitry.kozliuk@gmail.com \
--cc=john.alexander@datapath.co.uk \
--cc=navasile@linux.microsoft.com \
--cc=pallavi.kadam@intel.com \
--cc=ranjit.menon@intel.com \
--cc=stable@dpdk.org \
--cc=talshn@mellanox.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).