linux/Documentation/devicetree/bindings/net/stmmac.txt
Linus Torvalds 9a76aba02a Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
 "Highlights:

   - Gustavo A. R. Silva keeps working on the implicit switch fallthru
     changes.

   - Support 802.11ax High-Efficiency wireless in cfg80211 et al, From
     Luca Coelho.

   - Re-enable ASPM in r8169, from Kai-Heng Feng.

   - Add virtual XFRM interfaces, which avoids all of the limitations of
     existing IPSEC tunnels. From Steffen Klassert.

   - Convert GRO over to use a hash table, so that when we have many
     flows active we don't traverse a long list during accumluation.

   - Many new self tests for routing, TC, tunnels, etc. Too many
     contributors to mention them all, but I'm really happy to keep
     seeing this stuff.

   - Hardware timestamping support for dpaa_eth/fsl-fman from Yangbo Lu.

   - Lots of cleanups and fixes in L2TP code from Guillaume Nault.

   - Add IPSEC offload support to netdevsim, from Shannon Nelson.

   - Add support for slotting with non-uniform distribution to netem
     packet scheduler, from Yousuk Seung.

   - Add UDP GSO support to mlx5e, from Boris Pismenny.

   - Support offloading of Team LAG in NFP, from John Hurley.

   - Allow to configure TX queue selection based upon RX queue, from
     Amritha Nambiar.

   - Support ethtool ring size configuration in aquantia, from Anton
     Mikaev.

   - Support DSCP and flowlabel per-transport in SCTP, from Xin Long.

   - Support list based batching and stack traversal of SKBs, this is
     very exciting work. From Edward Cree.

   - Busyloop optimizations in vhost_net, from Toshiaki Makita.

   - Introduce the ETF qdisc, which allows time based transmissions. IGB
     can offload this in hardware. From Vinicius Costa Gomes.

   - Add parameter support to devlink, from Moshe Shemesh.

   - Several multiplication and division optimizations for BPF JIT in
     nfp driver, from Jiong Wang.

   - Lots of prepatory work to make more of the packet scheduler layer
     lockless, when possible, from Vlad Buslov.

   - Add ACK filter and NAT awareness to sch_cake packet scheduler, from
     Toke Høiland-Jørgensen.

   - Support regions and region snapshots in devlink, from Alex Vesker.

   - Allow to attach XDP programs to both HW and SW at the same time on
     a given device, with initial support in nfp. From Jakub Kicinski.

   - Add TLS RX offload and support in mlx5, from Ilya Lesokhin.

   - Use PHYLIB in r8169 driver, from Heiner Kallweit.

   - All sorts of changes to support Spectrum 2 in mlxsw driver, from
     Ido Schimmel.

   - PTP support in mv88e6xxx DSA driver, from Andrew Lunn.

   - Make TCP_USER_TIMEOUT socket option more accurate, from Jon
     Maxwell.

   - Support for templates in packet scheduler classifier, from Jiri
     Pirko.

   - IPV6 support in RDS, from Ka-Cheong Poon.

   - Native tproxy support in nf_tables, from Máté Eckl.

   - Maintain IP fragment queue in an rbtree, but optimize properly for
     in-order frags. From Peter Oskolkov.

   - Improvde handling of ACKs on hole repairs, from Yuchung Cheng"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1996 commits)
  bpf: test: fix spelling mistake "REUSEEPORT" -> "REUSEPORT"
  hv/netvsc: Fix NULL dereference at single queue mode fallback
  net: filter: mark expected switch fall-through
  xen-netfront: fix warn message as irq device name has '/'
  cxgb4: Add new T5 PCI device ids 0x50af and 0x50b0
  net: dsa: mv88e6xxx: missing unlock on error path
  rds: fix building with IPV6=m
  inet/connection_sock: prefer _THIS_IP_ to current_text_addr
  net: dsa: mv88e6xxx: bitwise vs logical bug
  net: sock_diag: Fix spectre v1 gadget in __sock_diag_cmd()
  ieee802154: hwsim: using right kind of iteration
  net: hns3: Add vlan filter setting by ethtool command -K
  net: hns3: Set tx ring' tc info when netdev is up
  net: hns3: Remove tx ring BD len register in hns3_enet
  net: hns3: Fix desc num set to default when setting channel
  net: hns3: Fix for phy link issue when using marvell phy driver
  net: hns3: Fix for information of phydev lost problem when down/up
  net: hns3: Fix for command format parsing error in hclge_is_all_function_id_zero
  net: hns3: Add support for serdes loopback selftest
  bnxt_en: take coredump_record structure off stack
  ...
2018-08-15 15:04:25 -07:00

179 lines
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Plaintext

* STMicroelectronics 10/100/1000/2500/10000 Ethernet (GMAC/XGMAC)
Required properties:
- compatible: Should be "snps,dwmac-<ip_version>", "snps,dwmac" or
"snps,dwxgmac-<ip_version>", "snps,dwxgmac".
For backwards compatibility: "st,spear600-gmac" is also supported.
- reg: Address and length of the register set for the device
- interrupts: Should contain the STMMAC interrupts
- interrupt-names: Should contain a list of interrupt names corresponding to
the interrupts in the interrupts property, if available.
Valid interrupt names are:
- "macirq" (combined signal for various interrupt events)
- "eth_wake_irq" (the interrupt to manage the remote wake-up packet detection)
- "eth_lpi" (the interrupt that occurs when Rx exits the LPI state)
- phy-mode: See ethernet.txt file in the same directory.
- snps,reset-gpio gpio number for phy reset.
- snps,reset-active-low boolean flag to indicate if phy reset is active low.
- snps,reset-delays-us is triplet of delays
The 1st cell is reset pre-delay in micro seconds.
The 2nd cell is reset pulse in micro seconds.
The 3rd cell is reset post-delay in micro seconds.
Optional properties:
- resets: Should contain a phandle to the STMMAC reset signal, if any
- reset-names: Should contain the reset signal name "stmmaceth", if a
reset phandle is given
- max-frame-size: See ethernet.txt file in the same directory
- clocks: If present, the first clock should be the GMAC main clock and
the second clock should be peripheral's register interface clock. Further
clocks may be specified in derived bindings.
- clock-names: One name for each entry in the clocks property, the
first one should be "stmmaceth" and the second one should be "pclk".
- ptp_ref: this is the PTP reference clock; in case of the PTP is available
this clock is used for programming the Timestamp Addend Register. If not
passed then the system clock will be used and this is fine on some
platforms.
- tx-fifo-depth: See ethernet.txt file in the same directory
- rx-fifo-depth: See ethernet.txt file in the same directory
- snps,pbl Programmable Burst Length (tx and rx)
- snps,txpbl Tx Programmable Burst Length. Only for GMAC and newer.
If set, DMA tx will use this value rather than snps,pbl.
- snps,rxpbl Rx Programmable Burst Length. Only for GMAC and newer.
If set, DMA rx will use this value rather than snps,pbl.
- snps,no-pbl-x8 Don't multiply the pbl/txpbl/rxpbl values by 8.
For core rev < 3.50, don't multiply the values by 4.
- snps,aal Address-Aligned Beats
- snps,fixed-burst Program the DMA to use the fixed burst mode
- snps,mixed-burst Program the DMA to use the mixed burst mode
- snps,force_thresh_dma_mode Force DMA to use the threshold mode for
both tx and rx
- snps,force_sf_dma_mode Force DMA to use the Store and Forward
mode for both tx and rx. This flag is
ignored if force_thresh_dma_mode is set.
- snps,en-tx-lpi-clockgating Enable gating of the MAC TX clock during
TX low-power mode
- snps,multicast-filter-bins: Number of multicast filter hash bins
supported by this device instance
- snps,perfect-filter-entries: Number of perfect filter entries supported
by this device instance
- snps,ps-speed: port selection speed that can be passed to the core when
PCS is supported. For example, this is used in case of SGMII
and MAC2MAC connection.
- snps,tso: this enables the TSO feature otherwise it will be managed by
MAC HW capability register. Only for GMAC4 and newer.
- AXI BUS Mode parameters: below the list of all the parameters to program the
AXI register inside the DMA module:
- snps,lpi_en: enable Low Power Interface
- snps,xit_frm: unlock on WoL
- snps,wr_osr_lmt: max write outstanding req. limit
- snps,rd_osr_lmt: max read outstanding req. limit
- snps,kbbe: do not cross 1KiB boundary.
- snps,blen: this is a vector of supported burst length.
- snps,fb: fixed-burst
- snps,mb: mixed-burst
- snps,rb: rebuild INCRx Burst
- mdio: with compatible = "snps,dwmac-mdio", create and register mdio bus.
- Multiple RX Queues parameters: below the list of all the parameters to
configure the multiple RX queues:
- snps,rx-queues-to-use: number of RX queues to be used in the driver
- Choose one of these RX scheduling algorithms:
- snps,rx-sched-sp: Strict priority
- snps,rx-sched-wsp: Weighted Strict priority
- For each RX queue
- Choose one of these modes:
- snps,dcb-algorithm: Queue to be enabled as DCB
- snps,avb-algorithm: Queue to be enabled as AVB
- snps,map-to-dma-channel: Channel to map
- Specifiy specific packet routing:
- snps,route-avcp: AV Untagged Control packets
- snps,route-ptp: PTP Packets
- snps,route-dcbcp: DCB Control Packets
- snps,route-up: Untagged Packets
- snps,route-multi-broad: Multicast & Broadcast Packets
- snps,priority: RX queue priority (Range: 0x0 to 0xF)
- Multiple TX Queues parameters: below the list of all the parameters to
configure the multiple TX queues:
- snps,tx-queues-to-use: number of TX queues to be used in the driver
- Choose one of these TX scheduling algorithms:
- snps,tx-sched-wrr: Weighted Round Robin
- snps,tx-sched-wfq: Weighted Fair Queuing
- snps,tx-sched-dwrr: Deficit Weighted Round Robin
- snps,tx-sched-sp: Strict priority
- For each TX queue
- snps,weight: TX queue weight (if using a DCB weight algorithm)
- Choose one of these modes:
- snps,dcb-algorithm: TX queue will be working in DCB
- snps,avb-algorithm: TX queue will be working in AVB
[Attention] Queue 0 is reserved for legacy traffic
and so no AVB is available in this queue.
- Configure Credit Base Shaper (if AVB Mode selected):
- snps,send_slope: enable Low Power Interface
- snps,idle_slope: unlock on WoL
- snps,high_credit: max write outstanding req. limit
- snps,low_credit: max read outstanding req. limit
- snps,priority: TX queue priority (Range: 0x0 to 0xF)
Examples:
stmmac_axi_setup: stmmac-axi-config {
snps,wr_osr_lmt = <0xf>;
snps,rd_osr_lmt = <0xf>;
snps,blen = <256 128 64 32 0 0 0>;
};
mtl_rx_setup: rx-queues-config {
snps,rx-queues-to-use = <1>;
snps,rx-sched-sp;
queue0 {
snps,dcb-algorithm;
snps,map-to-dma-channel = <0x0>;
snps,priority = <0x0>;
};
};
mtl_tx_setup: tx-queues-config {
snps,tx-queues-to-use = <2>;
snps,tx-sched-wrr;
queue0 {
snps,weight = <0x10>;
snps,dcb-algorithm;
snps,priority = <0x0>;
};
queue1 {
snps,avb-algorithm;
snps,send_slope = <0x1000>;
snps,idle_slope = <0x1000>;
snps,high_credit = <0x3E800>;
snps,low_credit = <0xFFC18000>;
snps,priority = <0x1>;
};
};
gmac0: ethernet@e0800000 {
compatible = "st,spear600-gmac";
reg = <0xe0800000 0x8000>;
interrupt-parent = <&vic1>;
interrupts = <24 23 22>;
interrupt-names = "macirq", "eth_wake_irq", "eth_lpi";
mac-address = [000000000000]; /* Filled in by U-Boot */
max-frame-size = <3800>;
phy-mode = "gmii";
snps,multicast-filter-bins = <256>;
snps,perfect-filter-entries = <128>;
rx-fifo-depth = <16384>;
tx-fifo-depth = <16384>;
clocks = <&clock>;
clock-names = "stmmaceth";
snps,axi-config = <&stmmac_axi_setup>;
mdio0 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "snps,dwmac-mdio";
phy1: ethernet-phy@0 {
};
};
snps,mtl-rx-config = <&mtl_rx_setup>;
snps,mtl-tx-config = <&mtl_tx_setup>;
};