Commit Graph

11 Commits

Author SHA1 Message Date
Vladimir Oltean
07d985eef0 net: dsa: felix: Wire up the ocelot cls_flower methods
Export the cls_flower methods from the ocelot driver and hook them up to
the DSA passthrough layer.

Tables for the VCAP IS2 parameters, as well as half key packing (field
offsets and lengths) need to be defined for the VSC9959 core, as they
are different from Ocelot, mainly due to the different port count.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-03 18:57:49 -08:00
Vladimir Oltean
8551cdeb2a net: mscc: ocelot: parameterize the vcap_is2 properties
Remove the definitions for the VCAP IS2 table from ocelot_ace.c, since
it is specific to VSC7514.

The VSC9959 VCAP IS2 table supports more rules (1024 instead of 64) and
has a different width for the action (89 bits instead of 99).

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-03 18:57:49 -08:00
Vladimir Oltean
1ba8f6561a net: mscc: ocelot: remove port_pcs_init indirection for VSC7514
The Felix driver is now using its own PHYLINK instance, not calling into
ocelot_adjust_link. So the port_pcs_init function pointer is an
unnecessary indirection. Remove it.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Allan W. Nielsen <allan.nielsen@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-03 18:57:42 -08:00
Vladimir Oltean
e0632940bc net: mscc: ocelot: don't rely on preprocessor for vcap key/action packing
The IGR_PORT_MASK key width is different between the 11-port VSC7514 and
the 6-port VSC9959 switches. And since IGR_PORT_MASK is one of the first
fields of a VCAP key entry, it means that all further field
offset/length pairs are shifted between the 2.

The ocelot driver performs packing of VCAP half keys with the help of
some preprocessor macros:

- A set of macros for defining the HKO (Half Key Offset) and HKL (Half
  Key Length) of each possible key field. The offset of each field is
  defined as the sum between the offset and the sum of the previous
  field.

- A set of accessors on top of vcap_key_set for shorter (aka less
  typing) access to the HKO and HKL of each key field.

Since the field offsets and lengths are different between switches,
defining them through the preprocessor isn't going to fly. So introduce
a structure holding (offset, length) pairs and instantiate it in
ocelot_board.c for VSC7514. In a future patch, a similar structure will
be instantiated in felix_vsc9959.c for NXP LS1028A.

The accessors also need to go. They are based on macro name
concatenation, which is horrible to understand and follow.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-03 18:57:42 -08:00
Vladimir Oltean
a56d7a345d net: mscc: ocelot: simplify tc-flower offload structures
The ocelot tc-flower offload binds a second flow block callback (apart
from the one for matchall) just because it uses a different block
private structure (ocelot_port_private for matchall, ocelot_port_block
for flower).

But ocelot_port_block just appears to be boilerplate, and doesn't help
with anything in particular at all, it's just useless glue between the
(global!) struct ocelot_acl_block *block pointer, and a per-netdevice
struct ocelot_port_private *priv.

So let's just simplify that, and make struct ocelot_port_private be the
private structure for the block offload. This makes us able to use the
same flow callback as in the case of matchall.

This also reveals that the struct ocelot_acl_block *block is used rather
strangely, as mentioned above: it is defined globally, allocated at
probe time, and freed at unbind time. So just move the structure to the
main ocelot structure, which gives further opportunity for
simplification.

Also get rid of backpointers from struct ocelot_acl_block and struct
ocelot_ace_rule back to struct ocelot, by reworking the function
prototypes, where necessary, to use a more DSA-friendly "struct ocelot
*ocelot, int port" format.

And finally, remove the debugging prints that were added during
development, since they provide no useful information at this point.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Allan W. Nielsen <allan.nielsen@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-03 18:57:29 -08:00
Vladimir Oltean
ee50d07c9f net: mscc: ocelot: make phy_mode a member of the common struct ocelot_port
The Ocelot switchdev driver and the Felix DSA one need it for different
reasons. Felix (or at least the VSC9959 instantiation in NXP LS1028A) is
integrated with the traditional NXP Layerscape PCS design which does not
support runtime configuration of SerDes protocol. So it needs to
pre-validate the phy-mode from the device tree and prevent PHYLINK from
attempting to change it. For this, it needs to cache it in a private
variable.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-05 23:22:33 -08:00
Yangbo Lu
b049da1338 net: mscc: ocelot: use skb queue instead of skbs list
Convert to use skb queue instead of the list of skbs.
The skb queue could provide protection with lock.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-27 10:53:37 -08:00
Yangbo Lu
400928bf92 net: mscc: ocelot: convert to use ocelot_port_add_txtstamp_skb()
Convert to use ocelot_port_add_txtstamp_skb() for adding skbs which
require TX timestamp into list. Export it so that DSA Felix driver
could reuse it too.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-21 14:39:02 -08:00
Yangbo Lu
e23a7b3e8d net: mscc: ocelot: convert to use ocelot_get_txtstamp()
The method getting TX timestamp by reading timestamp FIFO and
matching skbs list is common for DSA Felix driver too.
So move code out of ocelot_board.c, convert to use
ocelot_get_txtstamp() function and export it.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-21 14:39:02 -08:00
Yangbo Lu
f145922ddc net: mscc: ocelot: export ocelot_hwstamp_get/set functions
Export ocelot_hwstamp_get/set functions so that DSA driver
is able to reuse them.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-21 14:39:02 -08:00
Vladimir Oltean
5e25636502 net: mscc: ocelot: publish structure definitions to include/soc/mscc/ocelot.h
We will be registering another switch driver based on ocelot, which
lives under drivers/net/dsa.

Make sure the Felix DSA front-end has the necessary abstractions to
implement a new Ocelot driver instantiation. This includes the function
prototypes for implementing DSA callbacks.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-15 12:32:16 -08:00