Commit Graph

1029 Commits

Author SHA1 Message Date
Ivan Malov
ae9aafe40b net/sfc: allow to control the represented entity MAC address
The MAC address is accessed via the representor ethdev's one.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
2022-05-31 18:50:00 +02:00
Ivan Malov
f55fe01f88 net/sfc: improve naming in flow tunnel offload support
Change ambiguous terms "jump rule" and "group rule" to
clearer "tunnel rule" and "switch rule". The new terms
reflect the purpose of these rules in virtual switches.

The module name, "flow tunnel", is replaced by "FT" in
function names to avoid the use of word "tunnel" twice.

Use term "FT context" when referring to tunnel entries.
Also, add "ctx" suffix to "ft" and "ft_id" occurrences.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
2022-05-19 10:09:09 +02:00
Ivan Malov
b05e39e0b2 net/sfc: drop futile null check
The NULL pointer check is clearly unneeded.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
2022-04-14 10:01:11 +02:00
Ivan Malov
31c23acc08 net/sfc: reduce log level of tunnel restore info error
OvS might invoke this API on its data path, out of sync
with its control plane. If the control path has already
deactivated the tunnel context entry, these invocations
will produce quite a few error printouts. Suppress that.

Fixes: 7e5b479803 ("net/sfc: implement control path operations in tunnel offload")
Cc: stable@dpdk.org

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
2022-03-08 13:20:21 +01:00
Weiguo Li
b0fed38467 net/sfc: fix memory allocation size for cache
The size of unit cache should be sizeof(**cache) instead of
sizeof(*cache). Memory reallocation is inadequate by sizeof(*cache)
for the platform whose size of pointer is 32-bits. Found by coccinelle
(see https://coccinelle.gitlabpages.inria.fr/website) script.

Fixes: 63abf8d292 ("net/sfc: support SW stats groups")
Cc: stable@dpdk.org

Signed-off-by: Weiguo Li <liwg06@foxmail.com>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
2022-02-18 16:49:42 +01:00
Ivan Malov
de32ec32d7 net/sfc: fix flow tunnel support detection
The condition for that must use the new MAE admin status.

Fixes: 2f577f0ea1 ("net/sfc: allow ports without MAE privilege")
Cc: stable@dpdk.org

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
2022-02-18 16:22:25 +01:00
Ivan Malov
24a491bb88 net/sfc: demand Tx fast free offload on EF10 simple datapath
Enforce this offload as it is immutable on the said datapath.

Fixes: c78d280e88 ("net/sfc: convert to new Tx offload API")
Cc: stable@dpdk.org

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
2022-02-10 14:32:02 +01:00
Ivan Malov
f67615ea62 net/sfc: do not push fast free offload to default TxQ config
Doing so is wrong since fast free is an adapter-wide offload.

Technically, the offending commit (see "Fixes" tag) does not
induce failures, however, such started to occur after commit
a4996bd89c ("ethdev: new Rx/Tx offloads API") had shown up,
because of the strict offload validation in the generic code.

Fixes: c78d280e88 ("net/sfc: convert to new Tx offload API")
Cc: stable@dpdk.org

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
2022-02-10 14:32:02 +01:00
Ivan Malov
1542d303a7 net/sfc: fix lock releases
Fixes: 155583abe6 ("net/sfc: implement representor queue setup and release")
Fixes: 75f080fdf7 ("net/sfc: implement port representor start and stop")
Cc: stable@dpdk.org

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2022-02-07 13:39:47 +01:00
Ivan Malov
68cde2a3bd net/sfc: use even spread mode in flow action RSS
If the user provides contiguous ascending queue IDs,
use the even spread mode to avoid wasting resources
which are needed to serve indirection table entries.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
2022-02-02 18:37:31 +01:00
Ivan Malov
be5cbe476b net/sfc: use adaptive table entry count in flow action RSS
Currently, every RSS context uses 128 indirection entries in
the hardware. That is not always optimal because the entries
come from a pool shared among all PCI functions of the board,
while the format of action RSS allows to pass less queue IDs.

With EF100 boards, it is possible to decide how many entries
to allocate for the indirection table of a context. Make use
of that in order to optimise resource usage in RSS scenarios.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
2022-02-02 18:37:31 +01:00
Ivan Malov
f6d230535b net/sfc: use non-static queue span limit in flow action RSS
On EF10 boards, the limit on how many queues an RSS context
can address is 64. On EF100 boards, this parameter may vary.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
2022-02-02 18:37:31 +01:00
Ivan Malov
6da67e706d net/sfc: rework flow action RSS support
Currently, the driver always allocates a dedicated NIC RSS context
for every separate flow rule with action RSS, which is not optimal.

First of all, multiple rules which have the same RSS specification
can share a context since filters in the hardware operate this way.

Secondly, entries in a context's indirection table are not precise
queue IDs but offsets with regard to the base queue ID of a filter.
This way, for example, queue arrays "0, 1, 2" and "3, 4, 5" in two
otherwise identical RSS specifications allow the driver to use the
same context since they both yield the same table of queue offsets.

Rework flow action RSS support in order to use these optimisations.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
2022-02-02 18:37:31 +01:00
Ivan Malov
667151aec1 net/sfc: validate queue span when parsing flow action RSS
The current code silently shrinks the value if it exceeds
the supported maximum. Do not do that. Validate the value.

Fixes: d77d07391d ("net/sfc: support flow API RSS action")
Cc: stable@dpdk.org

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
2022-01-25 12:26:48 +01:00
Josh Soref
7be78d0279 fix spelling in comments and strings
The tool comes from https://github.com/jsoref

Signed-off-by: Josh Soref <jsoref@gmail.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
2022-01-11 12:16:53 +01:00
Ivan Malov
4c6005999e net/sfc: support MAC address edits in transfer flows
These edits affect the outermost header in the current processing state
of the packet, which might have been decapsulated by prior action DECAP.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
2021-11-17 14:10:08 +01:00
Ivan Malov
e62a0d6a8e net/sfc: organise MAE flow action parsing function arguments
Add a context structure to simplify handling of action sets.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
2021-11-17 14:10:08 +01:00
Ivan Malov
55ac9b25ba net/sfc: refine order of checks on MAE action set attach
The number of counters being non-zero can be detected before
the action set registry traversal, so move the check outside.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
2021-11-17 14:10:08 +01:00
Viacheslav Galaktionov
3037e6cf3d net/sfc: support regioned NIC DMA memory mapping type
DMA on SN1022 SoC requires extra mapping of the memory via MCDI.

Signed-off-by: Viacheslav Galaktionov <viacheslav.galaktionov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Ivan Malov <ivan.malov@oktetlabs.ru>
2021-11-17 12:37:07 +01:00
Ivan Malov
7dc01afc0e net/sfc: fix printout labels for decrease TTL actions
Fixes: 60e53c078d ("net/sfc: support decrement IP TTL actions in transfer flows")

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
2021-11-17 12:14:21 +01:00
Ivan Malov
d28996b195 net/sfc: fix printout label for count action
Fixes: 96fd2bd69b ("net/sfc: support flow action count in transfer rules")
Cc: stable@dpdk.org

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
2021-11-17 12:14:21 +01:00
Ivan Malov
60e53c078d net/sfc: support decrement IP TTL actions in transfer flows
These actions map to MAE action DECR_IP_TTL. It affects
the outermost header in the current processing state of
the packet, which might have been decapsulated by prior
action DECAP. It also updates IPv4 checksum accordingly.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
2021-11-08 16:25:51 +01:00
Viacheslav Galaktionov
ce1f72dc4f net/sfc: allow control threads for counter queue polling
MAE counters can be polled from a control thread if no service core is
allocated for this.

Signed-off-by: Viacheslav Galaktionov <viacheslav.galaktionov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2021-11-04 17:57:00 +01:00
Andrew Rybchenko
50448dd3ab net/sfc: merge Rx and Tx doorbell counters into one
Datapath queue is either Rx or Tx, so just one counter is sufficient
for doorbells. It can count Tx doorbells in the case of Tx queue and
Rx doorbells in the case of Rx queue.

Signed-off-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
2021-11-04 17:42:05 +01:00
Igor Romanov
b75d85b766 net/sfc: support Xilinx Riverhead VF
Add the device and vendor numbers to the PCI ID map so
that a VF can be probed.

Signed-off-by: Igor Romanov <igor.romanov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
2021-11-04 12:41:34 +01:00
Ivan Malov
69fbb4e9b5 net/sfc: ignore direction attributes in transfer flows
[1] has deprecated the use of direction attributes in "transfer"
flows. Ignore them during the transition period.

[1]
commit 9d2a349b38 ("ethdev: deprecate direction attributes in transfer flows")

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
2021-11-02 19:26:13 +01:00
Ivan Malov
46c6714ffd net/sfc: support port representor related flow actions
Add support for actions PORT_REPRESENTOR and REPRESENTED_PORT.

The former should be used instead of ambiguous PORT_ID.

The latter sends traffic to the entity represented by
the given ethdev (network port or VF).

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
2021-11-02 19:26:13 +01:00
Ivan Malov
0fb3e8a910 net/sfc: support represented port flow item
Add support for item REPRESENTED_PORT to match on traffic entering
the embedded switch from the entity represented by the given
ethdev (network port or VF).

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
2021-11-02 19:26:13 +01:00
Ivan Malov
79b28b4920 net/sfc: assign correct m-ports to independent switch ports
In accordance with patches [1-4], MAE admin ethdev represents a
network port and not the PF which it sits on. Rework the way
how "ethdev" and "entity" m-ports are assigned in SW switch
port entries of independent ethdevs. Explain in comments.

[1] commit 081e42dab1 ("ethdev: add port representor item to flow API")
[2] commit 49863ae2bf ("ethdev: add represented port item to flow API")
[3] commit 8edb6bc026 ("ethdev: add port representor action to flow API")
[4] commit 88caad251c ("ethdev: add represented port action to flow API")

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
2021-11-02 19:26:13 +01:00
Ivan Malov
b9b48ac751 net/sfc: improve m-port related log messages
Make these messages more specific.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
2021-11-02 19:26:13 +01:00
Ivan Malov
3419c9a7e5 net/sfc: rename ethdev m-port retrieval helper
The function in question has an unfortunate name that reads
like finding a SW switch port entry. In fact just one of
the two m-ports is retrieved from that entry.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
2021-11-02 19:26:13 +01:00
Ivan Malov
b7b7b9f800 net/sfc: do not allow flow rules to refer to VF representors
VF representors do not own dedicated m-ports and thus cannot
be referred to as traffic endpoints in flow items or actions.

Fixes: a62ec90522 ("net/sfc: add port representors infrastructure")
Fixes: f55b61cec9 ("net/sfc: support port representor flow item")

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
2021-11-02 19:26:13 +01:00
Dmitry Kozlyuk
2fe6f1b762 drivers/net: advertise no support for keeping flow rules
When RTE_ETH_DEV_CAPA_FLOW_RULE_KEEP capability bit is zero,
the specified behavior is the same as it had been before
this bit was introduced. Explicitly reset it in all PMDs
supporting rte_flow API in order to attract the attention
of maintainers, who should eventually choose to advertise
the new capability or not. It is already known that
mlx4 and mlx5 will not support this capability.

For RTE_ETH_DEV_CAPA_FLOW_SHARED_OBJECT_KEEP
similar action is not performed,
because no PMD except mlx5 supports indirect actions.
Any PMD that starts doing so will anyway have to consider
all relevant API, including this capability.

Suggested-by: Ferruh Yigit <ferruh.yigit@intel.com>
Signed-off-by: Dmitry Kozlyuk <dkozlyuk@nvidia.com>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Acked-by: Somnath Kotur <somnath.kotur@broadcom.com>
Acked-by: Hyong Youb Kim <hyonkim@cisco.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2021-11-02 18:59:17 +01:00
Harman Kalra
d61138d4f0 drivers: remove direct access to interrupt handle
Removing direct access to interrupt handle structure fields,
rather use respective get set APIs for the same.
Making changes to all the drivers access the interrupt handle fields.

Signed-off-by: Harman Kalra <hkalra@marvell.com>
Acked-by: Hyong Youb Kim <hyonkim@cisco.com>
Signed-off-by: David Marchand <david.marchand@redhat.com>
Tested-by: Raslan Darawsheh <rasland@nvidia.com>
2021-10-25 21:20:12 +02:00
Olivier Matz
daa02b5cdd mbuf: add namespace to offload flags
Fix the mbuf offload flags namespace by adding an RTE_ prefix to the
name. The old flags remain usable, but a deprecation warning is issued
at compilation.

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Acked-by: Somnath Kotur <somnath.kotur@broadcom.com>
2021-10-24 13:37:43 +02:00
Olivier Matz
5b63493241 mbuf: mark old VLAN offload flags as deprecated
The flags PKT_TX_VLAN_PKT and PKT_TX_QINQ_PKT are
marked as deprecated since commit 380a7aab1a ("mbuf: rename deprecated
VLAN flags") (2017). But they were not using the RTE_DEPRECATED
macro, because it did not exist at this time. Add it, and replace
usage of these flags.

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
2021-10-24 13:30:40 +02:00
Ferruh Yigit
295968d174 ethdev: add namespace
Add 'RTE_ETH' namespace to all enums & macros in a backward compatible
way. The macros for backward compatibility can be removed in next LTS.
Also updated some struct names to have 'rte_eth' prefix.

All internal components switched to using new names.

Syntax fixed on lines that this patch touches.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
Acked-by: Wisam Jaddo <wisamm@nvidia.com>
Acked-by: Rosen Xu <rosen.xu@intel.com>
Acked-by: Chenbo Xia <chenbo.xia@intel.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Acked-by: Somnath Kotur <somnath.kotur@broadcom.com>
2021-10-22 18:15:38 +02:00
Viacheslav Galaktionov
26706314d4 net/sfc: implement transfer proxy port callback
In sfc, MAE admin serves as a transfer proxy. In order to track which
ethdev is privileged, augment every independent switch port structure
with information about its MAE privilege.

Signed-off-by: Viacheslav Galaktionov <viacheslav.galaktionov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
2021-10-18 20:56:02 +02:00
Viacheslav Galaktionov
2f577f0ea1 net/sfc: allow ports without MAE privilege
Register unprivileged ports in the switch domain registry in order to
allow redirecting traffic to them.

Differentiate between different levels of MAE support, update all MAE
status checks.

Signed-off-by: Viacheslav Galaktionov <viacheslav.galaktionov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
2021-10-18 20:56:02 +02:00
Ferruh Yigit
b563c14212 ethdev: remove jumbo offload flag
Removing 'DEV_RX_OFFLOAD_JUMBO_FRAME' offload flag.

Instead of drivers announce this capability, application can deduct the
capability by checking reported 'dev_info.max_mtu' or
'dev_info.max_rx_pktlen'.

And instead of application setting this flag explicitly to enable jumbo
frames, this can be deduced by driver by comparing requested 'mtu' to
'RTE_ETHER_MTU'.

Removing this additional configuration for simplification.

Suggested-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Rosen Xu <rosen.xu@intel.com>
Acked-by: Somnath Kotur <somnath.kotur@broadcom.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Huisong Li <lihuisong@huawei.com>
Acked-by: Hyong Youb Kim <hyonkim@cisco.com>
Acked-by: Michal Krawczyk <mk@semihalf.com>
2021-10-18 19:20:21 +02:00
Ferruh Yigit
dd4e429c95 ethdev: move jumbo frame offload check to library
Setting MTU bigger than RTE_ETHER_MTU requires the jumbo frame support,
and application should enable the jumbo frame offload support for it.

When jumbo frame offload is not enabled by application, but MTU bigger
than RTE_ETHER_MTU is requested there are two options, either fail or
enable jumbo frame offload implicitly.

Enabling jumbo frame offload implicitly is selected by many drivers
since setting a big MTU value already implies it, and this increases
usability.

This patch moves this logic from drivers to the library, both to reduce
the duplicated code in the drivers and to make behaviour more visible.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Rosen Xu <rosen.xu@intel.com>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Acked-by: Somnath Kotur <somnath.kotur@broadcom.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Huisong Li <lihuisong@huawei.com>
2021-10-18 19:20:21 +02:00
Ferruh Yigit
1bb4a528c4 ethdev: fix max Rx packet length
There is a confusion on setting max Rx packet length, this patch aims to
clarify it.

'rte_eth_dev_configure()' API accepts max Rx packet size via
'uint32_t max_rx_pkt_len' field of the config struct 'struct
rte_eth_conf'.

Also 'rte_eth_dev_set_mtu()' API can be used to set the MTU, and result
stored into '(struct rte_eth_dev)->data->mtu'.

These two APIs are related but they work in a disconnected way, they
store the set values in different variables which makes hard to figure
out which one to use, also having two different method for a related
functionality is confusing for the users.

Other issues causing confusion is:
* maximum transmission unit (MTU) is payload of the Ethernet frame. And
  'max_rx_pkt_len' is the size of the Ethernet frame. Difference is
  Ethernet frame overhead, and this overhead may be different from
  device to device based on what device supports, like VLAN and QinQ.
* 'max_rx_pkt_len' is only valid when application requested jumbo frame,
  which adds additional confusion and some APIs and PMDs already
  discards this documented behavior.
* For the jumbo frame enabled case, 'max_rx_pkt_len' is an mandatory
  field, this adds configuration complexity for application.

As solution, both APIs gets MTU as parameter, and both saves the result
in same variable '(struct rte_eth_dev)->data->mtu'. For this
'max_rx_pkt_len' updated as 'mtu', and it is always valid independent
from jumbo frame.

For 'rte_eth_dev_configure()', 'dev->data->dev_conf.rxmode.mtu' is user
request and it should be used only within configure function and result
should be stored to '(struct rte_eth_dev)->data->mtu'. After that point
both application and PMD uses MTU from this variable.

When application doesn't provide an MTU during 'rte_eth_dev_configure()'
default 'RTE_ETHER_MTU' value is used.

Additional clarification done on scattered Rx configuration, in
relation to MTU and Rx buffer size.
MTU is used to configure the device for physical Rx/Tx size limitation,
Rx buffer is where to store Rx packets, many PMDs use mbuf data buffer
size as Rx buffer size.
PMDs compare MTU against Rx buffer size to decide enabling scattered Rx
or not. If scattered Rx is not supported by device, MTU bigger than Rx
buffer size should fail.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Acked-by: Somnath Kotur <somnath.kotur@broadcom.com>
Acked-by: Huisong Li <lihuisong@huawei.com>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Rosen Xu <rosen.xu@intel.com>
Acked-by: Hyong Youb Kim <hyonkim@cisco.com>
2021-10-18 19:20:20 +02:00
Andrew Rybchenko
64c952ec78 drivers/net: remove queue xstats auto-fill flag
Some drivers do not provide per-queue statistics. So, there is no point
to have these misleading zeros in xstats.

Fixes: f30e69b41f ("ethdev: add device flag to bypass auto-filled queue xstats")
Cc: stable@dpdk.org

Signed-off-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2021-10-15 00:17:44 +02:00
Andrew Rybchenko
f55b61cec9 net/sfc: support port representor flow item
Add support for item PORT_REPRESENTOR which should
be used instead of ambiguous item PORT_ID.

Signed-off-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
2021-10-13 22:59:26 +02:00
Konstantin Ananyev
8d7d4fcdca ethdev: change input parameters for Rx queue count
Currently majority of fast-path ethdev ops take pointers to internal
queue data structures as an input parameter.
While eth_rx_queue_count() takes a pointer to rte_eth_dev and queue
index.
For future work to hide rte_eth_devices[] and friends it would be
plausible to unify parameters list of all fast-path ethdev ops.
This patch changes eth_rx_queue_count() to accept pointer to internal
queue data as input parameter.
While this change is transparent to user, it still counts as an ABI change,
as eth_rx_queue_count_t is used by ethdev public inline function
rte_eth_rx_queue_count().

Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: Hyong Youb Kim <hyonkim@cisco.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Tested-by: Feifei Wang <feifei.wang2@arm.com>
2021-10-13 22:14:58 +02:00
Ivan Malov
0ead098383 net/sfc: refine pattern of group flows in tunnel offload
By design, in a GROUP flow, outer match criteria go to "ENC" fields
of the action rule match specification. The current HW/FW hasn't
got support for these fields (except the VXLAN VNI) yet.

As a workaround, start parsing the pattern from the tunnel item.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
2021-10-13 21:30:13 +02:00
Ivan Malov
9df2d8f5cc net/sfc: support counters in tunnel offload jump rules
Such a counter will only report the number of hits, which is actually
a sum of two contributions (the JUMP rule's own counter + indirect
increments issued by counters of the associated GROUP rules.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
2021-10-13 21:30:13 +02:00
Ivan Malov
8cd7725169 net/sfc: use action rules in tunnel offload jump rules
By design, JUMP flows should be represented solely by the outer rules. But
the HW/FW hasn't got support for setting Rx mark from RECIRC_ID on outer
rule lookup yet. Neither does it support outer rule counters. As a
workaround, an action rule of lower priority is used to do the job.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
2021-10-13 21:30:13 +02:00
Ivan Malov
8efb2f537e net/sfc: override match fields in tunnel offload jump rules
The current HW/FW doesn't allow to match on MAC addresses in outer rules.
One day this will change for sure, but right now a workaround is needed.

Match on VLAN presence in outer rules is also unsupported. Ignore it.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
2021-10-13 21:30:13 +02:00
Ivan Malov
7e5b479803 net/sfc: implement control path operations in tunnel offload
Support generic callbacks which callers will invoke to get
PMD-specific actions and items used to produce JUMP and
GROUP flows and to detect tunnel information.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
2021-10-13 21:30:13 +02:00