Commit Graph

163 Commits

Author SHA1 Message Date
David Marchand
7c83a1e3c8 bus/pci: fix leak for unbound devices
For devices not bound to any Linux kernel module, we leak a pci object
since it is never added to the PCI bus device list.

Fixes: c79a1c6746 ("bus/pci: optimize bus scan")
Cc: stable@dpdk.org

Reported-by: Owen Hilyard <ohilyard@iol.unh.edu>
Signed-off-by: David Marchand <david.marchand@redhat.com>
2021-07-06 11:27:55 +02:00
Thomas Monjalon
aa777f003a bus/pci: update files description
Some files were starting with some outdated introductions.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2021-07-06 11:27:55 +02:00
David Christensen
fc5bffb8b5 bus/pci: support IOVA as VA in PowerVM LPARs
Add IOMMU detection logic for PowerVM LPARs.

PowerNV $ cat /proc/cpuinfo
...
timebase     : 512000000
platform     : PowerNV
model        : 8335-GTW

PowerVM LPAR $ cat /proc/cpuinfo
...
timebase     : 512000000
platform     : pSeries
model        : IBM,9009-22A
machine      : CHRP IBM,9009-22A
MMU          : Hash

PowerNV KVM Guest $ cat /proc/cpuinfo
...
timebase     : 512000000
platform     : pSeries
model        : IBM pSeries (emulated by qemu)
machine      : CHRP IBM pSeries (emulated by qemu)
MMU          : Radix

Signed-off-by: David Christensen <drc@linux.vnet.ibm.com>
Reviewed-by: Thinh Tran <thinhtr@linux.vnet.ibm.com>
2021-07-05 11:30:58 +02:00
David Christensen
cc4219d1f0 bus/pci: fix IOVA as VA support for PowerNV
Fix the IOMMU detection logic that looks for the "platform" field of
/proc/cpuinfo on POWER systems.

Fixes: 9052157318 ("bus/pci: support IOVA as VA on PowerNV systems")
Cc: stable@dpdk.org

Signed-off-by: David Christensen <drc@linux.vnet.ibm.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2021-07-05 11:30:58 +02:00
Haiyue Wang
21f6adec07 bus/pci: configure PCI bus master
Add the API to set 'Bus Master Enable' bit to be enabled or disabled in
the PCI command register.

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Acked-by: Ray Kinsella <mdr@ashroe.eu>
2021-06-04 09:38:08 +02:00
Bruce Richardson
4ad4b20a79 drivers: change indentation in build files
Switch from using tabs to 4 spaces for meson.build indentation.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
2021-04-21 14:04:09 +02:00
Dmitry Kozlyuk
45d62067c2 eal: make OS shims internal
DPDK code often relies on functions and macros that are not standard C,
but are found on all platforms, even if by slightly different names.
Windows <rte_os.h> provided macros or inline definitions for such symbols.
However, when placed in public header, these symbols were unnecessarily
exposed, breaking consumer POSIX compatibility code.

Move most of the shims to <rte_os_shim.h>, a header to be used instead
of <rte_os.h> by internal code. Include it in libraries and PMDs that
previously imported shims from <rte_os.h>. Directly replace shims that
were only used inside EAL:
* index -> strchr, rindex -> strrchr
* sleep -> rte_delay_us_sleep
* strerror_r -> strerror_s

Signed-off-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Ranjit Menon <ranjit.menon@intel.com>
2021-04-15 01:56:20 +02:00
Thomas Monjalon
76d409ce6e vfio: reformat logs
The log messages had various issues:
- split on 2 lines, making search (grep) difficult
- long lines (can be split after the string)
- indented for no good reason (parent message may have higher log level)
- inconsistent use of __func__, not meaningful context for user
- lack of context (general message not mentioning VFIO)
- log level too high (more below)

Message having its level decreased from WARNING to NOTICE:
	"not managed by VFIO driver, skipping"
Message having its level decreased from INFO to DEBUG:
	"Probing VFIO support..."

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
2021-04-09 15:38:26 +02:00
Renata Saiakhova
2e761ce184 eal: add synchronous interrupt unregister
Avoid race with unregister interrupt handler if interrupt
source has some active callbacks at the moment, use wrapper
around rte_intr_callback_unregister() to check for -EAGAIN
return value and to loop until rte_intr_callback_unregister()
succeeds.

Signed-off-by: Renata Saiakhova <renata.saiakhova@ekinops.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Harman Kalra <hkalra@marvell.com>
2021-04-07 11:16:11 +02:00
Thomas Monjalon
7638726df6 bus/pci: rename probe/remove operation types
The names of the prototypes pci_probe_t and pci_remove_t
are missing a prefix rte_.
These function types are simply renamed.

No compatibility break is expected for the applications
because it is considered as an internal name in the driver interface.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Reviewed-by: Xueming Li <xuemingl@nvidia.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2021-04-06 14:52:55 +02:00
Thomas Monjalon
4d509afa7b pci: rename catch-all ID
The name of the constant PCI_ANY_ID was missing RTE_ prefix.
It is renamed, and the old name becomes a deprecated alias.

While renaming, the duplicate definitions in rte_bus_pci.h
are removed to keep only those in rte_pci.h.
Note: rte_pci.h is included in rte_bus_pci.h

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Reviewed-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2021-04-06 14:52:49 +02:00
Thomas Monjalon
204a7f44bc bus/pci: support I/O port operations with musl
Add a fallback for non-GNU libc systems like musl libc for the
non-standard functions outl_p, outw_p and outb_p.

It solves the following errors when building with musl libc:
	pci_uio.c: undefined reference to 'outw_p'
	pci_uio.c: undefined reference to 'outl_p'
	pci_uio.c: undefined reference to 'outb_p'

Bugzilla ID: 35
Fixes: 756ce64b1e ("eal: introduce PCI ioport API")
Cc: stable@dpdk.org

Reported-by: Natanael Copa <ncopa@alpinelinux.org>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: David Marchand <david.marchand@redhat.com>
2021-03-23 08:41:05 +01:00
Thomas Monjalon
924e6b7634 drivers: replace page size definitions with function
The page size is often retrieved from the macro PAGE_SIZE.
If PAGE_SIZE is not defined, it is either using hard coded default,
or getting the system value from the UNIX-only function sysconf().

Such definitions are replaced with the generic function
rte_mem_page_size() defined for each supported OS.

Removing PAGE_SIZE definitions will fix dlb drivers for musl libc,
because #ifdef checks were missing, causing redefinition errors.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Andrew Boyer <aboyer@pensando.io>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: David Marchand <david.marchand@redhat.com>
Acked-by: Timothy McDaniel <timothy.mcdaniel@intel.com>
2021-03-23 08:41:05 +01:00
Thomas Monjalon
41e026c1b3 bus/pci: fix Windows kernel driver categories
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: b762221ac2 ("bus/pci: support Windows with bifurcated drivers")
Fixes: c76ec01b45 ("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>
Acked-by: Tal Shnaiderman <talshn@nvidia.com>
Acked-by: Ranjit Menon <ranjit.menon@intel.com>
2021-03-19 16:23:16 +01:00
Khoa To
6857cb6358 bus/pci: support allow/block lists on Windows
EAL -a and -b options are used to specify which PCI devices are
explicitly allowed or blocked during PCI bus scan.  This evaluation
is missing in the Windows implementation of rte_pci_scan.

This patch provides this missing functionality, so that apps can specify
which devices to ignore during PCI bus scan.

Signed-off-by: Khoa To <khot@microsoft.com>
Acked-by: Ranjit Menon <ranjit.menon@intel.com>
Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
2021-03-16 22:27:25 +01:00
Nick Connolly
d9b02d2b39 bus/pci: set Windows device class and bus
Attaching to an NVMe disk on Windows using SPDK requires the
PCI class ID and device.bus fields. Decode the class ID from the PCI
device info strings if it is present and set device.bus.

Signed-off-by: Nick Connolly <nick.connolly@mayadata.io>
Acked-by: Tal Shnaiderman <talshn@nvidia.com>
Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
2021-03-16 16:55:23 +01:00
Pallavi Kadam
de04405b33 bus/pci: skip probing some Windows NDIS devices
Implement rte_pci_map_device() to distinguish between the devices bound
to netuio and NDIS devices.
Only return success for the netuio devices.

Fixes: c76ec01b45 ("bus/pci: support netuio on Windows")
Cc: stable@dpdk.org

Suggested-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Signed-off-by: Pallavi Kadam <pallavi.kadam@intel.com>
Reviewed-by: Ranjit Menon <ranjit.menon@intel.com>
Acked-by: Tal Shnaiderman <talshn@nvidia.com>
Acked-by: Narcisa Vasile <navasile@linux.microsoft.com>
Tested-by: Narcisa Vasile <navasile@linux.microsoft.com>
2021-03-16 12:40:35 +01:00
Huawei Xie
df58e45e4d bus/pci: support MMIO for ioport
With I/O BAR, we get PIO (port-mapped I/O) address.
With MMIO (memory-mapped I/O) BAR, we get mapped virtual address.
We distinguish PIO and MMIO by their address range like how kernel does,
i.e, address below 64K is PIO.
ioread/write8/16/32 is provided to access PIO/MMIO.
By the way, for virtio on arch other than x86, BAR flag indicates PIO
but is mapped.

Signed-off-by: Huawei Xie <huawei.xhw@alibaba-inc.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Tested-by: Yinan Wang <yinan.wang@intel.com>
2021-03-15 15:14:22 +01:00
Huawei Xie
46dcbccd3a bus/pci: use Linux PCI sysfs to get PIO address
Currently virtio PMD assumes legacy device uses PIO bar.
There are three ways to get PIO (port-mapped I/O) address for virtio
legacy device.
1) under igb_uio
   - get PIO address from uio/uio# sysfs attribute, for instance:
     /sys/bus/pci/devices/0000:00:09.0/uio/uio0/portio/port0/start
2) under uio_pci_generic
   - for X86, get PIO address from /proc/ioport
   - for other ARCH, get PIO address from standard PCI sysfs attribute,
     for instance: /sys/bus/pci/devices/0000:00:09.0/resource

Actually, "port0/start" in igb_uio and "resource" point to exactly the
same thing, i.e, pci_dev->resource[0] in kernel source code.

This patch refactors these messy things, and uses standard PCI sysfs
attribute "resource".

Signed-off-by: Huawei Xie <huawei.xhw@alibaba-inc.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Tested-by: Yinan Wang <yinan.wang@intel.com>
2021-03-15 15:13:29 +01:00
Tyler Retzlaff
6605c7f02e bus/pci: fix build with Windows SDK >= 10.0.20253
NetUIO device class and interface GUIDs are defined in system
headers starting from platform SDK v10.0.20253. Inspect SDK
version to avoid redefinition.

Pre-release SDKs do not promise compatibility and a narrow
subset of SDKs may still be subject to redefinition.

Fixes: c76ec01b45 (bus/pci: support netuio on Windows)
Cc: stable@dpdk.org

Signed-off-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Acked-by: Ranjit Menon <ranjit.menon@intel.com>
2021-01-15 14:50:00 +01:00
Tal Shnaiderman
ac7c98d04f bus/pci: ignore missing NUMA node on Windows
On older processors, NUMA isn't bound to PCIe locality.
those cases return ERROR_NOT_FOUND in response to the
SetupDiGetDevicePropertyW call with DEVPKEY_Device_Numa_Node
attribute.

This error fails the probe process for the PCIe device.
this commit will ignore such failure and will set the
numa_node to 0.

Fixes: b762221ac2 ("bus/pci: support Windows with bifurcated drivers")
Cc: stable@dpdk.org

Reported-by: Odi Assli <odia@nvidia.com>
Signed-off-by: Tal Shnaiderman <talshn@nvidia.com>
Tested-by: Odi Assli <odia@nvidia.com>
Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Acked-by: Ranjit Menon <ranjit.menon@intel.com>
2021-01-05 23:01:36 +01:00
Dmitry Kozlyuk
6d10ddb408 bus/pci: fix hardware ID limit on Windows
Length of hardware IDs list is limited by REGSTR_VAL_MAX_HCID_LEN [1],
which is currently 1024. With the old limit of 260, obtaining the list
could fail in a rare occasion of a very long result (no examples known).
This also removes a bogus dependency on the maximum path length.

[1]: https://docs.microsoft.com/en-us/windows-hardware/drivers/install/hardware-ids

Fixes: b762221ac2 ("bus/pci: support Windows with bifurcated drivers")
Cc: stable@dpdk.org

Signed-off-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
2021-01-05 13:56:34 +01:00
Dmitry Kozlyuk
de785ba056 bus/pci: fix build with MinGW-w64 8
Fix redefinition of GUID, missing from previous versions.

Fixes: b762221ac2 ("bus/pci: support Windows with bifurcated drivers")
Cc: stable@dpdk.org

Signed-off-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Tested-by: Thomas Monjalon <thomas@monjalon.net>
2020-12-07 15:26:26 +01:00
Gaetan Rivet
b23fd370cd bus/pci: fix comment explaining device naming
The original triple negative was hard to read and the attempt
to improve the formulation was commendable, unfortunately the new
comment is the inverse of correct.

Fixes: a65a34a85e ("eal: replace usage of blacklist/whitelist in enums")

Reported-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Gaetan Rivet <grive@u256.net>
Acked-by: Luca Boccassi <bluca@debian.org>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2020-11-20 09:58:55 +01:00
Stephen Hemminger
a65a34a85e eal: replace usage of blacklist/whitelist in enums
Rename the enum values in the EAL include files.
As a backward compatible temporary migration tool, define
a replacement mapping for old values.

The old names relating to blacklist and whitelist are replaced
by block list and allow list, but applications may be using the
older compatibility macros, marked as deprecated.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Luca Boccassi <bluca@debian.org>
Acked-by: Gaetan Rivet <grive@u256.net>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
2020-11-16 00:11:22 +01:00
David Marchand
30105f664f drivers: add headers install helper
A lot of drivers export headers, reproduce the same facility than for
libraries.

Note: this change fixes an issue with the crypto scheduler headers which
were not installed properly. A separate backport will be sent to stable
branches.

Suggested-by: Bruce Richardson <bruce.richardson@intel.com>
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2020-10-22 14:16:22 +02:00
Thomas Monjalon
59440fbabf bus/pci: remove unused scan by address
The function pci_update_device was used to scan a device
for probing by PCI address.
This private function (and implementations) are unused
since such probing is removed.

Fixes: f3bac43b60 ("bus/pci: remove unused function to probe by address")
Cc: stable@dpdk.org

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: David Marchand <david.marchand@redhat.com>
2020-10-20 13:57:57 +02:00
Stephen Hemminger
20b6fd653f drivers/bus: reword slave process as secondary
Correct wording is "secondary process".

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
2020-10-20 13:17:08 +02:00
Bruce Richardson
63b3907833 build: remove library name from version map file name
Since each version map file is contained in the subdirectory of the library
it refers to, there is no need to include the library name in the filename.
This makes things simpler in case of library renaming.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Luca Boccassi <bluca@debian.org>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: Rosen Xu <rosen.xu@intel.com>
2020-10-19 22:13:59 +02:00
Tal Shnaiderman
c12b14889e bus/pci: clear undefined bits in Windows segment parsing
When reading bus and segment values using SPDRP_BUSNUMBER
bits 24-31 are undefined.

They are cleared to verify we read the segment number correctly.

Fixes: c3adf8144a ("bus/pci: support segment as address domain on Windows")
Cc: stable@dpdk.org

Signed-off-by: Tal Shnaiderman <talshn@nvidia.com>
Acked-by: Ranjit Menon <ranjit.menon@intel.com>
Acked-by: Narcisa Vasile <navasile@linux.microsoft.com>
2020-10-16 14:41:32 +02:00
Pallavi Kadam
c76ec01b45 bus/pci: support netuio on Windows
This patch adds implementations to probe PCI devices bound to netuio
with the help of "netuio" class device changes.
Now Windows will support both "netuio" and "net" device class and
can set kernel driver type based on the device class selection.

Note: Few definitions and structures have been copied from
netuio_interface.h file from
("[v5] windows/netuio: add Windows NetUIO kernel driver") series
and this will be fixed once the exact path for netuio source code is known.

Signed-off-by: John Alexander <john.alexander@datapath.co.uk>
Signed-off-by: Pallavi Kadam <pallavi.kadam@intel.com>
Reviewed-by: Ranjit Menon <ranjit.menon@intel.com>
Reviewed-by: Tal Shnaiderman <talshn@nvidia.com>
Reviewed-by: Narcisa Vasile <navasile@linux.microsoft.com>
2020-10-14 22:28:42 +02:00
Tal Shnaiderman
c3adf8144a bus/pci: support segment as address domain on Windows
Set the domain value for rte_pci_addr probing on Windows
to the value of the PCI segment returned by SPDRP_BUSNUMBER.

Signed-off-by: Tal Shnaiderman <talshn@nvidia.com>
Acked-by: Ranjit Menon <ranjit.menon@intel.com>
2020-10-14 11:03:44 +02:00
Jim Harris
9d3ad80abd bus/pci: copy new id for inserted device on Linux
When a device is inserted into an existing BDF slot
that has not been probed, we must overwrite the old
PCI ID with the ID of the new function. Otherwise
we may not probe the function with the correct driver,
if at all.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
2020-10-13 23:10:18 +02:00
Thomas Monjalon
56bb5841fd kernel/linux: remove igb_uio
As decided in the Technical Board in November 2019,
the kernel module igb_uio is moved to the dpdk-kmods repository
in the /linux/igb_uio/ directory.

Minutes of Technical Board meeting:
https://mails.dpdk.org/archives/dev/2019-November/151763.html

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2020-10-06 14:50:13 +02:00
Yunjian Wang
40094b8eea bus/pci: remove unnecessary cast
The variables 'vfio_res->nb_maps' and 'i' are of type int. The type
casting of 'vfio_res->nb_maps' is redundant and not required.

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
2020-10-05 10:08:57 +02:00
Yunjian Wang
2a089d2d52 bus/pci: fix leak on VFIO mapping error
Currently, only the 'vfio_dev_fd' is closed in failure path, so
some resources are not released(such as 'vfio_group_fd'). The
rte_vfio_release_device() should be used to avoid this problem.

Fixes: 33604c3135 ("vfio: refactor PCI BAR mapping")
Cc: stable@dpdk.org

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Reviewed-by: Anatoly Burakov <anatoly.burakov@intel.com>
2020-10-05 10:08:57 +02:00
Yunjian Wang
e34a43a672 bus/pci: fix memory leak when unmapping VFIO resource
The 'vfio_res' is not freed when unmapping resource by primary process.
This leads to memory leak.

Fixes: ab53203e19 ("vfio: enable unmapping resource for secondary")
Cc: stable@dpdk.org

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
2020-10-05 10:08:57 +02:00
Manish Chopra
e00d2b4cea bus/pci: query PCI extended capabilities
By adding generic API, this patch removes individual
functions/defines implemented by drivers to find extended
PCI capabilities.

Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Reviewed-by: Gaetan Rivet <grive@u256.net>
Reviewed-by: Jerin Jacob <jerinj@marvell.com>
2020-09-30 19:19:11 +02:00
Hyong Youb Kim
77a8884c44 bus/pci: fix mapping BAR containing MSI-X table
When the BAR contains MSI-X table, pci_vfio_mmap_bar() tries to skip
the table and map the rest. "map around it" is the phrase used in the
source. The function splits the BAR into two regions: the region
before the table (first part or memreg[0]) and the region after the
table (second part or memreg[1]).

For hardware that has MSI-X vector table offset 0, the first part does
not exist (memreg[0].size == 0).

  Capabilities: [60] MSI-X: Enable- Count=48 Masked-
         Vector table: BAR=2 offset=00000000
         PBA: BAR=2 offset=00001000

The mapping part of the function maps the first part, if it
exists. Then, it maps the second part, if it exists and "if mapping the
first part succeeded".

The recent change that replaces MAP_FAILED with NULL breaks the "if
mapping the first part succeeded" condition (1) in the snippet below.

    void *map_addr = NULL;
    if (memreg[0].size) {
	    /* actual map of first part */
	    map_addr = pci_map_resource(...);
    }

    /* if there's a second part, try to map it */
    if (map_addr != NULL                              // -- (1)
	    && memreg[1].offset && memreg[1].size) {
	[...]
    }

    if (map_addr == NULL) {
            RTE_LOG(ERR, EAL, "Failed to map pci BAR%d\n",
                    bar_index);
            return -1;
    }

When the first part does not exist, (1) sees map_addr is still NULL,
and the function fails. This behavior is a regression and fails
probing hardware with vector table offset 0.

Previously, (1) was "map_addr != MAP_FAILED", which meant
pci_map_resource() was actually attempted and failed. So, expand (1)
to check if the first part exists as well, to match the semantics of
MAP_FAILED.

Bugzilla ID: 539
Fixes: e200535c1c ("mem: drop mapping API workaround")

Signed-off-by: Hyong Youb Kim <hyonkim@cisco.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
2020-09-28 11:39:14 +02:00
David Marchand
f252fe5e18 bus/pci: remove duplicate declaration
This declaration is the same as the one a few lines before.

Fixes: 6844d146ff ("eal: add bus pointer in device structure")
Cc: stable@dpdk.org

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
2020-09-21 10:12:10 +02:00
David Marchand
e200535c1c mem: drop mapping API workaround
Now that the pci_map_resource API is private to the PCI bus, we can drop
the compatibility workaround we had implemented in 20.08.

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
2020-09-21 10:12:10 +02:00
David Marchand
e1ece60956 pci: move resource mapping to the PCI bus
As reported during 20.08 work for Windows, the pci_map_resource API was
built with the assumption that its flags would be passed to mmap().

This introduced a regression when adding the rte_mem_map API as reported
in the workaround commit 9d2b245937 ("pci: keep API compatibility with
mmap values").

This API was only used in the PCI bus code, so move it there.

There is no code change happening during the move.
The only change is in the pci_map_resource description where the
additional flags are now documented as rte_mem_map API flags:
- *      The additional flags for the mapping range.
+ *      The additional rte_mem_map() flags for the mapping range.

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Ray Kinsella <mdr@ashroe.eu>
2020-09-21 10:12:10 +02:00
David Marchand
7c0d798aab bus/pci: switch to private kernel driver enum
The rte_kernel_driver enum actually only pointed at PCI drivers and is
only used in the PCI subsystem.
Remove it from the generic device API and use a private enum in the PCI
code.

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
2020-09-21 10:11:44 +02:00
Tal Shnaiderman
2dceae68f9 bus/pci: fix hardware IDs parsing on Windows
Swap subsystem vendor id and subsystem device id.
Parse the SPDRP_HARDWAREID string with correct type values.

Fixes: b762221ac2 ("bus/pci: support Windows with bifurcated drivers")
Cc: stable@dpdk.org

Signed-off-by: Tal Shnaiderman <talshn@mellanox.com>
Acked-by: Narcisa Vasile <navasile@linux.microsoft.com>
2020-09-11 02:01:38 +02:00
Ciara Power
ec260aa3ad config: remove default configs used with make
Make is not supported for compiling DPDK, the config files are no
longer needed.

Signed-off-by: Ciara Power <ciara.power@intel.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
2020-09-08 00:11:30 +02:00
Ciara Power
3cc6ecfdfe build: remove makefiles
A decision was made [1] to no longer support Make in DPDK, this patch
removes all Makefiles that do not make use of pkg-config, along with
the mk directory previously used by make.

[1] https://mails.dpdk.org/archives/dev/2020-April/162839.html

Signed-off-by: Ciara Power <ciara.power@intel.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
2020-09-08 00:09:50 +02:00
Thomas Monjalon
4f86c0ba19 version: 20.11-rc0
Start a new release cycle with empty release notes.

The ABI version becomes 21.0.
The ABI major is back to normal, having only one number (21 vs 20.0).
The map files are updated to the new ABI major number (21).
The ABI exceptions are dropped.
Travis ABI check is disabled because compatibility is not preserved.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Ray Kinsella <mdr@ashroe.eu>
2020-08-12 11:32:16 +02:00
Thomas Monjalon
9d2b245937 pci: keep API compatibility with mmap values
The function pci_map_resource() returns MAP_FAILED in case of error.
When replacing the call to mmap() by rte_mem_map(),
the error code became NULL, breaking the API.
This function is probably not used outside of DPDK,
but it is still a problem for two reasons:
	- the deprecation process was not followed
	- the Linux function pci_vfio_mmap_bar() is broken for i40e

The error code is reverted to the Unix value MAP_FAILED.
Windows needs to define this special value (-1 as in Unix).
After proper deprecation process, the API could be changed again
if really needed.

Because of the switch from mmap() to rte_mem_map(),
another part of the API was changed: "int additional_flags"
are defined as "additional flags for the mapping range"
without mentioning it was directly used in mmap().
Currently it is directly used in rte_mem_map(),
that's why the values rte_map_flags must be mapped (sic) on the mmap ones
in case of Unix OS.

These are side effects of a badly defined API using Unix values.

Bugzilla ID: 503
Fixes: 2fd3567e54 ("pci: use OS generic memory mapping functions")

Reported-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Tested-by: Lihong Ma <lihongx.ma@intel.com>
2020-07-11 11:48:13 +02:00
Tal Shnaiderman
b762221ac2 bus/pci: support Windows with bifurcated drivers
Uses SetupAPI.h functions to scan PCI tree.
Uses DEVPKEY_Device_Numa_Node to get the PCI NUMA node.
Uses SPDRP_BUSNUMBER and SPDRP_BUSNUMBER to get the BDF.
scanning currently supports types RTE_KDRV_NONE.

Signed-off-by: Tal Shnaiderman <talshn@mellanox.com>
2020-06-30 00:02:54 +02:00
Tal Shnaiderman
33031608e8 bus/pci: introduce Windows support with stubs
Addition of stub eal and bus/pci functions to compile
bus/pci for Windows.

Signed-off-by: Tal Shnaiderman <talshn@mellanox.com>
2020-06-30 00:02:54 +02:00