This patch defines various PCI config space access APIs
in order to read and find IOV specific PCI capabilities.
With these definitions implemented, it enables the base
driver to do SR-IOV specific initialization and HW specific
configuration required from PF-PMD driver instance.
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Rasesh Mody <rmody@marvell.com>
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 9d2b24593724 ("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>
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: 2fd3567e5425 ("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>
the struct rte_pci_addr defines domain as uint32_t variable however
the PCI_PRI_FMT macro used for logging the struct sets the format
of domain to uint16_t.
The mismatch causes the following warning messages
in Windows clang build:
format specifies type 'unsigned short' but the argument
has type 'uint32_t' (aka 'unsigned int') [-Wformat]
Fixes: af75078fece3 ("first public release")
Cc: stable@dpdk.org
Signed-off-by: Tal Shnaiderman <talshn@mellanox.com>
Added <sys/types.h> in rte_pci header file
to include off_t type since it is missing for Windows.
Define the implementation of the Linux function rte_pci_get_sysfs_path
in pci_common.c for Linux OS only as it is unneeded for other OSs
and to avoid the warning on deprecated call to getenv() on Windows:
"warning: 'getenv' is deprecated: This function or variable may be unsafe.
Consider using _dupenv_s instead."
Signed-off-by: Tal Shnaiderman <talshn@mellanox.com>
Changing all of PCIs Unix memory mapping to the
new memory allocation API wrapper.
Change all of PCI mapping function usage in
bus/pci to support the new API.
Signed-off-by: Tal Shnaiderman <talshn@mellanox.com>
When removing the extra headers from rte_pci.h stdlib should have been
removed instead of stdio, since off_t is missing for BSD builds when just
including stdlib.h
Fixes: 0dcba5256287 ("pci: remove unneeded includes in public header file")
Cc: stable@dpdk.org
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
The rte_pci.h file includes more header files than are actually needed,
which means that all users of it also include those headers. This patch
removes the unneeded headers - adding them elsewhere where other components
were requiring them but not including them directly.
Fixes: c752998b5e2e ("pci: introduce library and driver")
Cc: stable@dpdk.org
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
Those functions have been deprecated since 17.11 and have 1:1
replacement.
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
Some symbols were introduced with the wrong prefix.
Add the usual "rte_" prefix when needed.
Fixes: c752998b5e2e ("pci: introduce library and driver")
Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
The PCI lib defines the types and methods allowing to use PCI elements.
The PCI bus implements a bus driver for PCI devices by constructing
rte_bus elements using the PCI lib.
Move the relevant code out of the EAL to its expected place.
Libraries, drivers, unit tests and applications are updated to use the
new rte_bus_pci.h header when necessary.
Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
