fix spelling in comments and strings

The tool comes from https://github.com/jsoref

Signed-off-by: Josh Soref <[email protected]>
Signed-off-by: Thomas Monjalon <[email protected]>

net/nfp: read chip model from PluDevice register

For newer smartNIC NVRAM versions the chip model should be read from the
PluDevice register as it provides the authoritative chip model/revision.
Thi

net/nfp: read chip model from PluDevice register

For newer smartNIC NVRAM versions the chip model should be read from the
PluDevice register as it provides the authoritative chip model/revision.
This method of reading the chip model is backwards compatible with
legacy NVRAM versions too.

Since the model number is purely used for reporting purposes, follow the
hardware team convention of subtracting 0x10 from the PluDevice register
to obtain the chip model/revision number.

Fixes: c7e9729da6b5 ("net/nfp: support CPP")
Cc: [email protected]

Signed-off-by: Heinrich Kuhn <[email protected]>
Signed-off-by: Simon Horman <[email protected]>
Reviewed-by: Louis Peens <[email protected]>

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ethdev: make driver-only headers private

The rte_ethdev_driver.h, rte_ethdev_vdev.h and rte_ethdev_pci.h files are
for drivers only and should be a private to DPDK and not installed.

Signed-off-by:

ethdev: make driver-only headers private

The rte_ethdev_driver.h, rte_ethdev_vdev.h and rte_ethdev_pci.h files are
for drivers only and should be a private to DPDK and not installed.

Signed-off-by: Bruce Richardson <[email protected]>
Reviewed-by: Maxime Coquelin <[email protected]>
Acked-by: Thomas Monjalon <[email protected]>
Acked-by: Steven Webster <[email protected]>

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net/nfp: check return value

Call to CPP read (nfp_cpp_readl()) can fail, return 0 on fail.

If the call to _nfp6000_cppat_mu_locality fails, the function needs
to return with an error.

If the nfp_c

net/nfp: check return value

Call to CPP read (nfp_cpp_readl()) can fail, return 0 on fail.

If the call to _nfp6000_cppat_mu_locality fails, the function needs
to return with an error.

If the nfp_cpp_readl() call fails just returns 0.

Coverity issue: 277209, 277215, 277225
Fixes: c7e9729da6b5 ("net/nfp: support CPP")
Cc: [email protected]

Signed-off-by: Alejandro Lucero <[email protected]>

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net/nfp: use generic PCI config access functions

This patch avoids direct access to device config sysfs file using
rte_pci_read_config instead.

Apart from replicating code, it turns out this direct

net/nfp: use generic PCI config access functions

This patch avoids direct access to device config sysfs file using
rte_pci_read_config instead.

Apart from replicating code, it turns out this direct access does
not always work if non-root users execute DPDK apps. In those cases
it is mandatory to go through VFIO specific function for reading pci
config space.

Signed-off-by: Alejandro Lucero <[email protected]>

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net/nfp: fix lock file usage

DPDK apps can be executed as non-root users but current NFP lock
file for avoiding concurrent accesses to CPP interface is precluding
this option or requires to modify s

net/nfp: fix lock file usage

DPDK apps can be executed as non-root users but current NFP lock
file for avoiding concurrent accesses to CPP interface is precluding
this option or requires to modify system file permissions.

When the NFP device is bound to VFIO, this driver does not allow this
concurrent access, so the lock file is not required at all.

OVS-DPDK as executed in RedHat distributions is the main NFP user
needing this fix.

Fixes: c7e9729da6b5 ("net/nfp: support CPP")

Signed-off-by: Alejandro Lucero <[email protected]>

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net/nfp: support CPP

CPP refers to the internal NFP Command Push Pull bus. This patch allows
to create CPP commands from user space allowing to access any single
part of the chip.

This CPP interfac

net/nfp: support CPP

CPP refers to the internal NFP Command Push Pull bus. This patch allows
to create CPP commands from user space allowing to access any single
part of the chip.

This CPP interface is the base for having other functionalities like
mutexes when accessing specific chip components, chip resources management,
firmware upload or using the NSP, an embedded arm processor which can
perform tasks on demand.

NSP was the previous only way for doing things in the chip by the PMD,
where a NSPU interface was used for commands like firmware upload or
port link configuration. CPP interface supersedes NSPU, but it is still
possible to use NSP through CPP.

CPP interface adds a great flexibility for doing things like extended
stats or firmware debugging.

Signed-off-by: Alejandro Lucero <[email protected]>

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