kni: fix build for SLES15-SP3

As suse version numbering is inconsistent to determine Linux kernel
API to be used. In this patch we check parameter of 'ndo_tx_timeout'
API directly from the kernel so

kni: fix build for SLES15-SP3

As suse version numbering is inconsistent to determine Linux kernel
API to be used. In this patch we check parameter of 'ndo_tx_timeout'
API directly from the kernel source. This is done only for suse build.

Bugzilla ID: 812
Cc: [email protected]

Signed-off-by: Aman Singh <[email protected]>
Acked-by: Ferruh Yigit <[email protected]>
Tested-by: Longfeng Liang <[email protected]>

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kni: fix build on RHEL 8.3

Like what was done for mainline kernel in commit 38ad54f3bc76 ("kni: fix
build with Linux 5.6"), a new parameter 'txqueue' has to be added to
'ndo_tx_timeout' ndo on RHEL

kni: fix build on RHEL 8.3

Like what was done for mainline kernel in commit 38ad54f3bc76 ("kni: fix
build with Linux 5.6"), a new parameter 'txqueue' has to be added to
'ndo_tx_timeout' ndo on RHEL 8.3 kernel.

Cc: [email protected]

Signed-off-by: Olivier Matz <[email protected]>
Tested-by: Christophe Grosse <[email protected]>
Tested-by: David Marchand <[email protected]>
Acked-by: Ferruh Yigit <[email protected]>

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kni: fix build with Linux 5.9

Starting from Linux 5.9 'get_user_pages_remote()' API doesn't get
'struct task_struct' parameter:
commit 64019a2e467a ("mm/gup: remove task_struct pointer for all gup c

kni: fix build with Linux 5.9

Starting from Linux 5.9 'get_user_pages_remote()' API doesn't get
'struct task_struct' parameter:
commit 64019a2e467a ("mm/gup: remove task_struct pointer for all gup code")

The change reflected to the KNI with version check.

Cc: [email protected]

Signed-off-by: Ferruh Yigit <[email protected]>

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kni: fix build with Linux 5.6

With the following Linux commit a new parameter 'txqueue' has been added
to 'ndo_tx_timeout' ndo:
commit 0290bd291cc0 ("netdev: pass the stuck queue to the timeout hand

kni: fix build with Linux 5.6

With the following Linux commit a new parameter 'txqueue' has been added
to 'ndo_tx_timeout' ndo:
commit 0290bd291cc0 ("netdev: pass the stuck queue to the timeout handler")

The change reflected to the KNI with version check.

Cc: [email protected]

Signed-off-by: Ferruh Yigit <[email protected]>
Acked-by: David Marchand <[email protected]>

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kni: fix build with Linux 4.9.x

The 'get_user_pages_remote()' API is updated in kernel 4.10.0 [1],
but the check added as > 4.9.0,
this logic is broken for kernels 4.9.x, because they justify
> 4.9.

kni: fix build with Linux 4.9.x

The 'get_user_pages_remote()' API is updated in kernel 4.10.0 [1],
but the check added as > 4.9.0,
this logic is broken for kernels 4.9.x, because they justify
> 4.9.0 check but have the old API.

Fixing the check as >= 4.10.0

[1]
commit 5b56d49fc31d ("mm: add locked parameter to get_user_pages_remote()")

Fixes: d965af9e8ae1 ("kni: increase kernel version requirement for VA")

Reported-by: Andrew Rybchenko <[email protected]>
Suggested-by: David Marchand <[email protected]>
Signed-off-by: Ferruh Yigit <[email protected]>
Tested-by: Andrew Rybchenko <[email protected]>
Reviewed-by: David Marchand <[email protected]>

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kni: increase kernel version requirement for VA

A build error reported related to the selected 'get_user_pages_remote()'
kernel API:

.../kernel/linux/kni/kni_dev.h:113:8:
error: too few arguments

kni: increase kernel version requirement for VA

A build error reported related to the selected 'get_user_pages_remote()'
kernel API:

.../kernel/linux/kni/kni_dev.h:113:8:
error: too few arguments to function ‘get_user_pages_remote’
ret = get_user_pages_remote(tsk, tsk->mm, iova, 1
^~~~~~~~~~~~~~~~~~~~~

Currently there are three versions of the 'get_user_pages_remote()'
supported, based on kernel version < 4.9, = 4.9, > 4.9.

These version based checks are not working fine with the distro kernels
which is the cause of reported build error. The error reported by the
kernel version 4.8, but it is using API defined in > 4.9.

To be able to take control of this, and possible more, related build
error, increasing the minimum supported kernel version for iova=va with
KNI to kernel version 4.9.

This leaves us with single version of the kernel API and more manageable.

Signed-off-by: Ferruh Yigit <[email protected]>
Reviewed-by: David Marchand <[email protected]>

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kni: support userspace VA

Patch adds support for kernel module to work in IOVA = VA mode by
providing address translation routines to convert userspace VA to
kernel VA.

KNI performance using PA is

kni: support userspace VA

Patch adds support for kernel module to work in IOVA = VA mode by
providing address translation routines to convert userspace VA to
kernel VA.

KNI performance using PA is not changed by this patch.
But comparing KNI using PA to KNI using VA, the latter will have lower
performance due to the cost of the added translation.

This translation is implemented only with kernel versions starting 4.6.0.

Signed-off-by: Vamsi Attunuru <[email protected]>
Signed-off-by: Kiran Kumar K <[email protected]>
Reviewed-by: Jerin Jacob <[email protected]>

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kni: calculate MTU from mbuf size

- mbuf_size and mtu are now being calculated according
to the given mb-pool.

- max_mtu is now being set according to the given mtu

the above two changes provide t

kni: calculate MTU from mbuf size

- mbuf_size and mtu are now being calculated according
to the given mb-pool.

- max_mtu is now being set according to the given mtu

the above two changes provide the ability to work with jumbo frames

Signed-off-by: Liron Himi <[email protected]>
Acked-by: Ferruh Yigit <[email protected]>

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kni: fix build on RHEL8 for arm and Power9

Signed-off-by: David Zeng <[email protected]>
Acked-by: Ferruh Yigit <[email protected]>

kni: fix build on RHEL 8

'ndo_change_mtu_rh74' was changed to 'ndo_change_mtu' in RHEL8.

Build error log:
/home/dpdk-18.11/kernel/linux/kni/compat.h:107:24: error: ‘const struct
net_device_ops’ has

kni: fix build on RHEL 8

'ndo_change_mtu_rh74' was changed to 'ndo_change_mtu' in RHEL8.

Build error log:
/home/dpdk-18.11/kernel/linux/kni/compat.h:107:24: error: ‘const struct
net_device_ops’ has no member named ‘ndo_change_mtu_rh74’; did you mean
‘ndo_change_mtu’?
#define ndo_change_mtu ndo_change_mtu_rh74
^~~~~~~~~~~~~~~~~~~

Cc: [email protected]

Signed-off-by: Xiao Liang <[email protected]>
Acked-by: Ferruh Yigit <[email protected]>

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kernel: add missing SPDX license identifiers

Signed-off-by: Hemant Agrawal <[email protected]>

kni: fix build on RHEL 7.5

Signed-off-by: Lee Roberts <[email protected]>
Acked-by: Ferruh Yigit <[email protected]>

move kernel modules directories

This patch moves the kernel modules code from EAL to a common place.
- Separate the kernel module code from user space code.

Signed-off-by: Hemant Agrawal <hemant.a

move kernel modules directories

This patch moves the kernel modules code from EAL to a common place.
- Separate the kernel module code from user space code.

Signed-off-by: Hemant Agrawal <[email protected]>
Tested-by: Bruce Richardson <[email protected]>

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