When ECPF eswitch manager is at offloads mode, it monitors functions
changed event from host PF side and acts according to the number of
VFs enabled/disabled.
As ECPF and host PF work in two independent hosts, it's possible that
host PF OS reboots but ECPF system is still kept on and continues
monitoring events from host PF. When kernel from host PF side is
booting, PCI iov driver does sriov_init and compute_max_vf_buses by
iterating over all valid num of VFs. This triggers FLR and generates
functions changed events, even though host PF HCA is not enabled at
this time. However, ECPF is not aware of this information, and still
handles these events as usual. ECPF system will see massive number of
reps are created, but destroyed immediately once creation finished.
To eliminate this noise, a bit is added to host parameter context to
indicate host PF is disabled. ECPF will not handle the VF changed
event if this bit is set.
Signed-off-by: Bodong Wang <bodong@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
As mlx5_get_next_phys_dev is used only for PCI PF devices use case,
limit it to search only for PCI devices.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
mlx5_pci_init() performs pci specific initialization of the
mlx5_core_dev struct.
Hence move pci_status_mutex to pci initialization routine
mlx5_pci_init().
This allows reusing mlx5_mdev_init() to non PCI devices.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
When an IB rep is loaded, netdev for the same vport is saved for later
reference. However, it's not cleaned up when doing unload. For ECPF,
kernel crashes when driver is referring to the already removed netdev.
Following steps lead to a shown call trace:
1. Create n VFs from host PF
2. Distroy the VFs
3. Run "rdma link" from ARM
Call trace:
mlx5_ib_get_netdev+0x9c/0xe8 [mlx5_ib]
mlx5_query_port_roce+0x268/0x558 [mlx5_ib]
mlx5_ib_rep_query_port+0x14/0x34 [mlx5_ib]
ib_query_port+0x9c/0xfc [ib_core]
fill_port_info+0x74/0x28c [ib_core]
nldev_port_get_doit+0x1a8/0x1e8 [ib_core]
rdma_nl_rcv_msg+0x16c/0x1c0 [ib_core]
rdma_nl_rcv+0xe8/0x144 [ib_core]
netlink_unicast+0x184/0x214
netlink_sendmsg+0x288/0x354
sock_sendmsg+0x18/0x2c
__sys_sendto+0xbc/0x138
__arm64_sys_sendto+0x28/0x34
el0_svc_common+0xb0/0x100
el0_svc_handler+0x6c/0x84
el0_svc+0x8/0xc
Cleanup the rep and netdev reference when unloading IB rep.
Fixes: 26628e2d58 ("RDMA/mlx5: Move to single device multiport ports in switchdev mode")
Signed-off-by: Bodong Wang <bodong@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
In the single IB device mode, the mapping between vport number and
rep relies on a counter. However for dynamic vport allocation, it is
desired to keep consistent map of eswitch vport and IB port.
Hence, simplify code to remove the free running counter and instead
use the available vport index during load/unload sequence from the
eswitch.
Signed-off-by: Bodong Wang <bodong@mellanox.com>
Suggested-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Driver is referring to the array index when doing rep initialization,
using vport is confusing as it's normally interpreted as vport number.
This patch doesn't change any functionality.
Signed-off-by: Bodong Wang <bodong@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Given a fw component index, the MCQI register allows us to query
this component's information (e.g. its version and capabilities).
Given a fw component index, the MCQS register allows us to query the
status of a fw component, including its type and state
(e.g. PRESET/IN_USE).
It can be used to find the index of a component of a specific type, by
sequentially increasing the component index, and querying each time the
type of the returned component.
If max component index is reached, 'last_index_flag' is set by the HCA.
These registers' description was added to query the running and pending
fw version of the HCA.
Signed-off-by: Shay Agroskin <shayag@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Update mlx5 device interface data structures for:
1. New command definitions for allocating, deallocating SF
2. Query SF partition
3. Eswitch SF fields
4. HCA CAP SF fields
5. Extend Eswitch functions command for SF
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Currently, kernel pktgen has the feature to specify udp destination port
for sending packet. (e.g. pgset "udp_dst_min 9")
But on samples, each of the scripts doesn't have any option to achieve this.
This commit adds the DST_PORT option to specify the target port(s) in the script.
-p : ($DST_PORT) destination PORT range (e.g. 433-444) is also allowed
Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit adds port parsing and port validate helper function to parse
single or range of port(s) from a given string. (e.g. 1234, 443-444)
Helpers will be used in prior to set target port(s) in samples/pktgen.
Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Extend flowlabel_reflect bitmask to allow conditional
reflection of incoming flowlabels in echo replies.
Note this has precedence against auto flowlabels.
Add flowlabel_reflect enum to replace hard coded
values.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
esp4_get_mtu and esp6_get_mtu are exactly the same, the only difference
is a single sizeof() (ipv4 vs. ipv6 header).
Merge both into xfrm_state_mtu() and remove the indirection.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This series adds some misc updates for mlx5e driver
1) Allow adding the same mac more than once in MPFS table
2) Move to HW checksumming advertising
3) Report netdevice MPLS features
4) Correct physical port name of the PF representor
5) Reduce stack usage in mlx5_eswitch_termtbl_create
6) Refresh TIR improvement for representors
7) Expose same physical switch_id for all representors
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Merge tag 'mlx5e-updates-2019-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5e-updates-2019-06-28
This series adds some misc updates for mlx5e driver
1) Allow adding the same mac more than once in MPFS table
2) Move to HW checksumming advertising
3) Report netdevice MPLS features
4) Correct physical port name of the PF representor
5) Reduce stack usage in mlx5_eswitch_termtbl_create
6) Refresh TIR improvement for representors
7) Expose same physical switch_id for all representors
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2019-06-28
This series contains a smorgasbord of updates to many of the Intel
drivers.
Gustavo A. R. Silva updates the ice and iavf drivers to use the
strcut_size() helper where possible.
Miguel increases the pause and refresh time for flow control in the
e1000e driver during reset for certain devices.
Dann Frazier fixes a potential NULL pointer dereference in ixgbe driver
when using non-IPSec enabled devices.
Colin Ian King fixes a potential overflow during a shift in the ixgbe
driver. Also fixes a potential NULL pointer dereference in the iavf
driver by adding a check.
Venkatesh Srinivas converts the e1000 driver to use dma_wmb() instead of
wmb() for doorbell writes to avoid SFENCEs in the transmit and receive
paths.
Arjan updates the e1000e driver to improve boot time by over 100 msec by
reducing the usleep ranges suring system startup.
Artem updates the igb driver register dump in ethtool, first prepares
the register dump for future additions of registers in the dump, then
secondly, adds the RR2DCDELAY register to the dump. When dealing with
time-sensitive networks, this register is helpful in determining your
latency from the device to the ring.
Alex fixes the ixgbevf driver to use the current cached link state,
rather than trying to re-check the value from the PF.
Harshitha adds support for MACVLAN offloads in i40e by using channels as
MACVLAN interfaces.
Detlev Casanova updates the e1000e driver to use delayed work instead of
timers to run the watchdog.
Vitaly fixes an issue in e1000e, where when disconnecting and
reconnecting the physical cable connection, the NIC enters a DMoff
state. This state causes a mismatch in link and duplexing, so check the
PCIm function state and perform a PHY reset when in this state to
resolve the issue.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
DMA_API_HOWTO.txt includes an example explaining when
dma_sync_single_for_device() is not needed, and that example matches
our use case. The buffer isn't changed by the CPU and direction is
DMA_FROM_DEVICE, so we can remove the call to
dma_sync_single_for_device().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Documentation/DMA-API-HOWTO.txt states:
By default, the kernel assumes that your device can address 32-bits of
DMA addressing. For a 64-bit capable device, this needs to be increased,
and for a device with limitations, it needs to be decreased.
Therefore we don't need the 32 Bit DMA fallback configuration and can
remove it.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The VLAN tag is stored in the descriptor in network byte order.
Using swab16 works on little endian host systems only. Better play safe
and use ntohs or htons respectively.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
running the script on systems without netdevsim now prints:
SKIP: ipsec_offload can't load netdevsim
instead of error message & failed status.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nikolay Aleksandrov says:
====================
em_ipt: add support for addrtype
We would like to be able to use the addrtype from tc for ACL rules and
em_ipt seems the best place to add support for the already existing xt
match. The biggest issue is that addrtype revision 1 (with ipv6 support)
is NFPROTO_UNSPEC and currently em_ipt can't differentiate between v4/v6
if such xt match is used because it passes the match's family instead of
the packet one. The first 3 patches make em_ipt match only on IP
traffic (currently both policy and addrtype recognize such traffic
only) and make it pass the actual packet's protocol instead of the xt
match family when it's unspecified. They also add support for NFPROTO_UNSPEC
xt matches. The last patch allows to add addrtype rules via em_ipt.
We need to keep the user-specified nfproto for dumping in order to be
compatible with libxtables, we cannot dump NFPROTO_UNSPEC as the nfproto
or we'll get an error from libxtables, thus the nfproto is limited to
ipv4/ipv6 in patch 03 and is recorded.
v3: don't use the user nfproto for matching, only for dumping, more
information is available in the commit message in patch 03
v2: change patch 02 to set the nfproto only when unspecified and drop
patch 04 from v1 (Eyal Birger)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Allow em_ipt to use addrtype for matching. Restrict the use only to
revision 1 which has IPv6 support. Since it's a NFPROTO_UNSPEC xt match
we use the user-specified nfproto for matching, in case it's unspecified
both v4/v6 will be matched by the rule.
v2: no changes, was patch 5 in v1
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If we dump NFPROTO_UNSPEC as nfproto user-space libxtables can't handle
it and would exit with an error like:
"libxtables: unhandled NFPROTO in xtables_set_nfproto"
In order to avoid the error return the user-specified nfproto. If we
don't record it then the match family is used which can be
NFPROTO_UNSPEC. Even if we add support to mask NFPROTO_UNSPEC in
iproute2 we have to be compatible with older versions which would be
also be allowed to add NFPROTO_UNSPEC matches (e.g. addrtype after the
last patch).
v3: don't use the user nfproto for matching, only for dumping the rule,
also don't allow the nfproto to be unspecified (explained above)
v2: adjust changes to missing patch, was patch 04 in v1
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Set the family based on the packet if it's unspecified otherwise
protocol-neutral matches will have wrong information (e.g. NFPROTO_UNSPEC).
In preparation for using NFPROTO_UNSPEC xt matches.
v2: set the nfproto only when unspecified
Suggested-by: Eyal Birger <eyal.birger@gmail.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Restrict matching only to ip/ipv6 traffic and make sure we can use the
headers, otherwise matches will be attempted on any protocol which can
be unexpected by the xt matches. Currently policy supports only ipv4/6.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds vlan offload support for the HINIC driver.
Signed-off-by: Xue Chaojing <xuechaojing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Toke Høiland-Jørgensen says:
====================
When using the bpf_redirect_map() helper to redirect packets from XDP, the eBPF
program cannot currently know whether the redirect will succeed, which makes it
impossible to gracefully handle errors. To properly fix this will probably
require deeper changes to the way TX resources are allocated, but one thing that
is fairly straight forward to fix is to allow lookups into devmaps, so programs
can at least know when a redirect is *guaranteed* to fail because there is no
entry in the map. Currently, programs work around this by keeping a shadow map
of another type which indicates whether a map index is valid.
This series contains two changes that are complementary ways to fix this issue:
- Moving the map lookup into the bpf_redirect_map() helper (and caching the
result), so the helper can return an error if no value is found in the map.
This includes a refactoring of the devmap and cpumap code to not care about
the index on enqueue.
- Allowing regular lookups into devmaps from eBPF programs, using the read-only
flag to make sure they don't change the values.
The performance impact of the series is negligible, in the sense that I cannot
measure it because the variance between test runs is higher than the difference
pre/post series.
Changelog:
v6:
- Factor out list handling in maps to a helper in list.h (new patch 1)
- Rename variables in struct bpf_redirect_info (new patch 3 + patch 4)
- Explain why we are clearing out the map in the info struct on lookup failure
- Remove unneeded check for forwarding target in tracepoint macro
v5:
- Rebase on latest bpf-next.
- Update documentation for bpf_redirect_map() with the new meaning of flags.
v4:
- Fix a few nits from Andrii
- Lose the #defines in bpf.h and just compare the flags argument directly to
XDP_TX in bpf_xdp_redirect_map().
v3:
- Adopt Jonathan's idea of using the lower two bits of the flag value as the
return code.
- Always do the lookup, and cache the result for use in xdp_do_redirect(); to
achieve this, refactor the devmap and cpumap code to get rid the bitmap for
selecting which devices to flush.
v2:
- For patch 1, make it clear that the change works for any map type.
- For patch 2, just use the new BPF_F_RDONLY_PROG flag to make the return
value read-only.
====================
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
We don't currently allow lookups into a devmap from eBPF, because the map
lookup returns a pointer directly to the dev->ifindex, which shouldn't be
modifiable from eBPF.
However, being able to do lookups in devmaps is useful to know (e.g.)
whether forwarding to a specific interface is enabled. Currently, programs
work around this by keeping a shadow map of another type which indicates
whether a map index is valid.
Since we now have a flag to make maps read-only from the eBPF side, we can
simply lift the lookup restriction if we make sure this flag is always set.
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
The bpf_redirect_map() helper used by XDP programs doesn't return any
indication of whether it can successfully redirect to the map index it was
given. Instead, BPF programs have to track this themselves, leading to
programs using duplicate maps to track which entries are populated in the
devmap.
This patch fixes this by moving the map lookup into the bpf_redirect_map()
helper, which makes it possible to return failure to the eBPF program. The
lower bits of the flags argument is used as the return code, which means
that existing users who pass a '0' flag argument will get XDP_ABORTED.
With this, a BPF program can check the return code from the helper call and
react by, for instance, substituting a different redirect. This works for
any type of map used for redirect.
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
The bpf_redirect_info struct has an 'ifindex' member which was named back
when the redirects could only target egress interfaces. Now that we can
also redirect to sockets and CPUs, this is a bit misleading, so rename the
member to tgt_index.
Reorder the struct members so we can have 'tgt_index' and 'tgt_value' next
to each other in a subsequent patch.
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
The socket map uses a linked list instead of a bitmap to keep track of
which entries to flush. Do the same for devmap and cpumap, as this means we
don't have to care about the map index when enqueueing things into the
map (and so we can cache the map lookup).
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Add a helper in list.h for the non-standard way of clearing a list that is
used in xskmap. This makes it easier to reuse it in the other map types,
and also makes sure this usage is not forgotten in any list refactorings in
the future.
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Let's use union with u8[4] and u32 members for sockopt buffer,
that should fix any possible aliasing issues.
test_sockopt_sk.c: In function ‘getsetsockopt’:
test_sockopt_sk.c:115:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
if (*(__u32 *)buf != 0x55AA*2) {
^~
test_sockopt_sk.c:116:3: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
log_err("Unexpected getsockopt(SO_SNDBUF) 0x%x != 0x55AA*2",
^~~~~~~
Fixes: 8a027dc0d8 ("selftests/bpf: add sockopt test that exercises sk helpers")
Reported-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
After changing the parent_id to be the same for both NICs of same
the hardware device, netdev_port_same_parent_id now returns true for
more cases (all the lower devices in the hierarchy are on the same
hardware device).
If merged eswitch isn't enabled, these cases aren't supported, so disallow
them.
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Report system_image_guid as the E-Switch switch_id, this ensures
that when a NIC contains multiple PCI functions and which
has merged eswitch capability, all representors from
multiple PFs publish same switch_id.
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Refreshing TIRs is done in order to update the TIRs with the current
state of SQs in the transport domain, so that the TIRs can filter out
undesired self-loopback packets based on the source SQ of the packet.
Representor TIRs will only receive packets that originate from their
associated vport, due to dedicated steering, and therefore will never
receive self-loopback packets, whose source vport will be the vport of
the E-Switch manager, and therefore not the vport associated with the
representor. As such, it is not necessary to refresh the representors'
TIRs, since self-loopback packets can't reach them.
Since representors only exist in switchdev mode, and there is no
scenario in which a representor will exist in the transport domain
alongside a non-representor, it is not necessary to refresh the
transport domain's TIRs upon changing the state of a representor's
queues. Therefore, do not refresh TIRs upon such a change. Achieve
this by adding an update_rx callback to the mlx5e_profile, which
refreshes TIRs for non-representors and does nothing for representors,
and replace instances of mlx5e_refresh_tirs() upon changing the state
of the queues with update_rx().
Signed-off-by: Gavi Teitz <gavi@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Putting an empty 'mlx5_flow_spec' structure on the stack is a bit
wasteful and causes a warning on 32-bit architectures when building
with clang -fsanitize-coverage:
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_termtbl.c: In function 'mlx5_eswitch_termtbl_create':
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_termtbl.c:90:1: error: the frame size of 1032 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
Since the structure is never written to, we can statically allocate
it to avoid the stack usage. To be on the safe side, mark all
subsequent function arguments that we pass it into as 'const'
as well.
Fixes: 10caabdaad ("net/mlx5e: Use termination table for VLAN push actions")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Consider PCI and non PCI device types while setting device name
in get_drvinfo() callback using existing generic device.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Currently PF phys_port_name is named as pfNvf-1 as vport number for PF
vport is 65535.
Correct PF's phys_port name as agreed upon name as pfN.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Set supported device features in the netdevice MPLS features mask.
This will enable HW checksumming and TSO for MPLS tagged traffic.
Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This patch changes the way the driver advertises its checksum offload
capabilities within the net device features bit mask.
Instead of advertising protocol specific checksumming capabilities
which are limited today to IPv4 and IPv6, we move to reporing
generic HW checksumming capabilities.
This will allow the network stack to let mlx5 device offload checksum
for cases where the IP header is encapsulated within another protocol
and the skb->protocol doesn't indicate one of the IP versions protocol,
specifically in the case of MPLS label encapsulating the IP header and
the skb->protocol indiciates MPLS ethertype rather than IP.
Moving the HW_CSUM reporting is required in the basic net device hw
features mask and also in the extensions (vlan and encpasulation
features) since the extensions are always multiplied by the basic
features set during the packet's traversal through the stack's tx flow.
Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Remove the limitation preventing adding a vport's MAC address to the
Multi-Physical Function Switch (MPFS) more than once per E-switch, as
there is no difference in the MPFS if an address is being used by an
E-switch more than once.
This allows the E-switch to have multiple vports with the same MAC
address, allowing vports to be classified by VLAN id instead of by MAC
if desired.
Signed-off-by: Gavi Teitz <gavi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Misc updates from mlx5-next branch:
1) E-Switch vport metadata support for source vport matching
2) Convert mkey_table to XArray
3) Shared IRQs and to use single IRQ for all async EQs
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Due to commit: 5d8682588605 ("[misc] mei: me: allow runtime
pm for platform with D0i3")
When disconnecting the cable and reconnecting it the NIC
enters DMoff state. This caused wrong link indication
and duplex mismatch. This bug is described in:
https://bugzilla.redhat.com/show_bug.cgi?id=1689436
Checking PCIm function state and performing PHY reset after a
timeout in watchdog task solves this issue.
Signed-off-by: Vitaly Lifshits <vitaly.lifshits@intel.com>
Acked-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Use delayed work instead of timers to run the watchdog of the e1000e
driver.
Simplify the code with one less middle function.
Signed-off-by: Detlev Casanova <detlev.casanova@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch enables macvlan offloads for i40e. The idea is to use
channels as macvlan interfaces. The channels are VSIs of
type VMDQ. When the first macvlan is created, the maximum number of
channels possible are created. From then on, as a macvlan interface
is created, a macvlan filter is added to these already created
channels (VSIs).
This patch utilizes subordinate device traffic classes to make queue
groups(channels) available for an upper device like a macvlan.
Steps to configure macvlan offloads:
1. ethtool -K ethx l2-fwd-offload on
2. ip link add link ethx name macvlan1 type macvlan
3. ip addr add <address> dev macvlan1
4. ip link set macvlan1 up
Signed-off-by: Harshitha Ramamurthy <harshitha.ramamurthy@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Change the ethtool link settings call to just read the cached state out of
the adapter structure instead of trying to recheck the value from the PF.
Doing this should prevent excessive reading of the mailbox.
Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Reviewed-by: "Guilherme G. Piccoli" <gpiccoli@canonical.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
A recent commit efa14c3985 ("iavf: allow null RX descriptors") added
a null pointer sanity check on rx_buffer, however, rx_buffer is being
dereferenced before that check, which implies a null pointer dereference
bug can potentially occur. Fix this by only dereferencing rx_buffer
until after the null pointer check.
Addresses-Coverity: ("Dereference before null check")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds the RR2DCDELAY register to the ethtool registers dump.
RR2DCDELAY exists on I210 and I211 Intel Gigabit Ethernet chips and it stands
for "Read Request To Data Completion Delay". Here is how this register is
described in the I210 datasheet:
"This field captures the maximum PCIe split time in 16 ns units, which is the
maximum delay between the read request to the first data completion. This is
giving an estimation of the PCIe round trip time."
In other words, whenever I210 reads from the host memory (e.g., fetches a
descriptor from the ring), the chip measures every PCI DMA read transaction and
captures the maximum value. So it ends up containing the longest DMA
transaction time.
This register is very useful for troubleshooting and research purposes. If you
are dealing with time-sensitive networks, this register can help you get
an idea of your "I210-to-ring" latency. This helps answering questions like
"should I have PCIe ASPM enabled?" or "should I enable deep C-states?" on
my system.
It is safe to read this register at any point, reading it has no effect on
the I210 chip functionality.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch has no functional impact and it is just a preparation
for the following patch. It removes an early return from the
'igb_get_regs()' function by moving the 82576-only registers
dump into an "if" block. With this preparation, we can dump more
non-82576 registers at the end of this function.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
