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2018-08-09s390/qeth: reduce hard-coded access to ccw channelsJulian Wiedmann2-28/+31
Where possible use accessor macros and local pointers to access the ccw channels. This makes it less likely to miss a spot. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09s390/qeth: extract helper for MPC protocol typeJulian Wiedmann3-24/+15
Just a little code deduplication. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09dt-bindings: net: stmmac: Add the bindings documentation for XGMAC2.Jose Abreu1-2/+3
Adds the documentation for XGMAC2 DT bindings. Signed-off-by: Jose Abreu <joabreu@synopsys.com> Cc: David S. Miller <davem@davemloft.net> Cc: Joao Pinto <jpinto@synopsys.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Cc: devicetree@vger.kernel.org Cc: Rob Herring <robh+dt@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09net: stmmac: Add the bindings parsing for XGMAC2Jose Abreu2-0/+8
Add the bindings parsing for XGMAC2 IP block. Signed-off-by: Jose Abreu <joabreu@synopsys.com> Cc: David S. Miller <davem@davemloft.net> Cc: Joao Pinto <jpinto@synopsys.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09net: stmmac: Integrate XGMAC into main driver flowJose Abreu1-19/+48
Now that we have all the XGMAC related callbacks, lets start integrating this IP block into main driver. Also, we corrected the initialization flow to only start DMA after setting descriptors length. Signed-off-by: Jose Abreu <joabreu@synopsys.com> Cc: David S. Miller <davem@davemloft.net> Cc: Joao Pinto <jpinto@synopsys.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Cc: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09net: stmmac: Add PTP support for XGMAC2Jose Abreu3-4/+7
XGMAC2 uses the same engine of timestamping as GMAC4. Let's use the same callbacks. Signed-off-by: Jose Abreu <joabreu@synopsys.com> Cc: David S. Miller <davem@davemloft.net> Cc: Joao Pinto <jpinto@synopsys.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09net: stmmac: Add MDIO related functions for XGMAC2Jose Abreu1-4/+129
Add the MDIO related funcionalities for the new IP block XGMAC2. Signed-off-by: Jose Abreu <joabreu@synopsys.com> Cc: David S. Miller <davem@davemloft.net> Cc: Joao Pinto <jpinto@synopsys.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09net: stmmac: Add descriptor related callbacks for XGMAC2Jose Abreu5-2/+314
Add the descriptor related callbacks for the new IP block XGMAC2. Signed-off-by: Jose Abreu <joabreu@synopsys.com> Cc: David S. Miller <davem@davemloft.net> Cc: Joao Pinto <jpinto@synopsys.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09net: stmmac: Add DMA related callbacks for XGMAC2Jose Abreu5-2/+471
Add the DMA related callbacks for the new IP block XGMAC2. Signed-off-by: Jose Abreu <joabreu@synopsys.com> Cc: David S. Miller <davem@davemloft.net> Cc: Joao Pinto <jpinto@synopsys.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09net: stmmac: Add MAC related callbacks for XGMAC2Jose Abreu6-3/+519
Add the MAC related callbacks for the new IP block XGMAC2. Signed-off-by: Jose Abreu <joabreu@synopsys.com> Cc: David S. Miller <davem@davemloft.net> Cc: Joao Pinto <jpinto@synopsys.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09net: stmmac: Add XGMAC 2.10 HWIF entryJose Abreu3-8/+38
Add a new entry to HWIF table for XGMAC 2.10. For now we fill it with empty callbacks which will be added in posterior patches. Signed-off-by: Jose Abreu <joabreu@synopsys.com> Cc: David S. Miller <davem@davemloft.net> Cc: Joao Pinto <jpinto@synopsys.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09net: dsa: mv88e6xxx: Re-setup interrupts on CMODE change.Andrew Lunn3-2/+27
When a port changes CMODE, the SERDES interface being used can change. Disable interrupts for the old SERDES interface, and enable interrupts on the new. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09net: dsa: mv88e6xxx: Add SERDES phydev_mac_change up for 6390Andrew Lunn4-0/+222
phylink wants to know when the MAC layers notices a change in the link. For the 6390 family, this is a change in the SERDES state. Add interrupt support for the SERDES interface used to implement SGMII/1000Base-X/2500Base-X. This is currently limited to ports 9 and 10. Support for the 10G SERDES and other ports will be added later, building on this basic framework. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09net: dsa: mv88e6xxx: link mv88e6xxx_port to mv88e6xxx_chipAndrew Lunn2-0/+5
An up coming change will register interrupts for individual switch ports, using the mv88e6xxx_port as the interrupt context information. Add members to the mv88e6xxx_port structure so we can link it back to the mv88e6xxx_chip member the port belongs to and the port number of the port. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09net: dsa: mv88e6xxx: Power on/off SERDES on cmode changeAndrew Lunn1-0/+9
The 6390 family has a number of SERDES interfaces per port. When the cmode changes, eg 1000Base-X to XAUI, the SERDES interface in use will also change. Power down the old SERDES interface and power up the new SERDES interface. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09net: dsa: mv88e6xxx: Cache the port cmodeAndrew Lunn5-47/+57
The ports CMODE indicates the type of link between the MAC and the PHY. It is used often in the SERDES code. Rather than read it each time, cache its value. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09net: dsa: mv88e6xxx: 2500Base-X uses the 1000Base-X SERDESAndrew Lunn1-1/+1
The 6390 has three different SERDES interface types. 2500Base-X is implemented by the SGMII/1000Base-X SERDES. So power on/off the correct SERDES. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09net: dsa: mv88e6xxx: Add serdes register read/write helperAndrew Lunn2-11/+25
Add a helper for accessing SERDES registers of the 6390 family. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09net: dsa: mv88e6xxx: Rename sgmii/10g power functionsAndrew Lunn1-6/+8
There is a need to add more functions manipulating the SERDES interfaces. Cleanup the namespace. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09net: dsa: mv88e6xxx: 6390 vs 6390X SERDES supportAndrew Lunn3-3/+53
The 6390 has two SERDES interfaces, used by ports 9 and 10. The 6390X has eight SERDES interfaces. These allow ports 9 and 10 to do 10G. Or if lower speeds are used, some of the SERDES interfaces can be used by ports 2-8 for 1000Base-X. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09net: dsa: mv88e6xxx: Refactor SERDES lane codeAndrew Lunn1-81/+114
The 6390 family has 8 SERDES lanes. What ports use these lanes depends on how ports 9 and 10 are configured. If 9 and 10 does not make use of a line, one of the lower ports can use it. Add a function to return the lane a port is using, if any, and simplify the code to power up/down the lane. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09net: dsa: mv88e6xxx: add phylink supportRussell King4-4/+217
Add rudimentary phylink support to mv88e6xxx. TODO: - needs to call phylink_mac_change() when the port link comes up/goes down. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09phylink: add helper for configuring 2500BaseX modesRussell King2-0/+31
Add a helper for MAC drivers to use in their validate callback to deal with 2500BaseX vs 1000BaseX modes, where the hardware supports both but it is not possible to automatically select between them. This helper defaults to 1000BaseX, as that is the 802.3 standard, and will allow users to select 2500BaseX either by forcing the speed if AN is disabled, or by changing the advertising mask if AN is enabled. Disabling AN is not recommended as it is only the speed that we're interested in controlling, not the duplex or pause mode parameters. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09net: dsa: mv88e6xxx: Add support to enabling pauseAndrew Lunn4-4/+48
The 6185 can enable/disable 802.3z pause be setting the MyPause bit in the port status register. Add an op to support this. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09mlxsw: spectrum: Expose counter for all 16 TCsPetr Machata1-5/+6
Before MC-aware mode was enabled in commit 7b8195306694 ("mlxsw: spectrum: Configure MC-aware mode on mlxsw ports"), only 8 traffic classes were used. Under MC-aware regime, however, besides using TCs 0-7 for UC traffic, it additionally uses TCs 8-15 for BUM traffic. It is therefore desirable to show counters for these TCs as well. Update ethtool stats pool length, mlxsw_sp_port_get_strings() and mlxsw_sp_port_get_stats() to include artifacts for all 16 TCs. For consistency and simplicity, expose tc_no_buffer_discard_uc_tc for BUM TCs as well, even though it ought to stay at 0 all the time. Signed-off-by: Petr Machata <petrm@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09mlxsw: spectrum: Include RFC-2819 counters in stats lengthPetr Machata1-0/+1
The function mlxsw_sp_port_get_sset_count() is supposed to return the total number of ethtool strings that mlxsw supports. Specifically for names of statistic counters (the only string type that mlxsw supports as of now), that number is stored in MLXSW_SP_PORT_ETHTOOL_STATS_LEN. However, when adding RFC-2891 counters, that define wasn't updated to include the new counters. As a result, ethtool snips out the counters towards the end of the list, which contains per-TC counters, and only the first three traffic classes end up being reported. Fix by adding MLXSW_SP_PORT_HW_RFC_2819_STATS_LEN as appropriate. Fixes: 1222d15a01c7 ("mlxsw: spectrum: Expose counters for various packet sizes") Signed-off-by: Petr Machata <petrm@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-09mlxsw: Replace license text with SPDX identifiers and adjust copyrightsJiri Pirko64-2139/+131
Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>