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authorLinus Torvalds <[email protected]>2019-05-07 22:03:58 -0700
committerLinus Torvalds <[email protected]>2019-05-07 22:03:58 -0700
commit80f232121b69cc69a31ccb2b38c1665d770b0710 (patch)
tree106263eac4ff03b899df695e00dd11e593e74fe2 /drivers/net/dsa/mv88e6060.c
parent82efe439599439a5e1e225ce5740e6cfb777a7dd (diff)
parenta9e41a529681b38087c91ebc0bb91e12f510ca2d (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller: "Highlights: 1) Support AES128-CCM ciphers in kTLS, from Vakul Garg. 2) Add fib_sync_mem to control the amount of dirty memory we allow to queue up between synchronize RCU calls, from David Ahern. 3) Make flow classifier more lockless, from Vlad Buslov. 4) Add PHY downshift support to aquantia driver, from Heiner Kallweit. 5) Add SKB cache for TCP rx and tx, from Eric Dumazet. This reduces contention on SLAB spinlocks in heavy RPC workloads. 6) Partial GSO offload support in XFRM, from Boris Pismenny. 7) Add fast link down support to ethtool, from Heiner Kallweit. 8) Use siphash for IP ID generator, from Eric Dumazet. 9) Pull nexthops even further out from ipv4/ipv6 routes and FIB entries, from David Ahern. 10) Move skb->xmit_more into a per-cpu variable, from Florian Westphal. 11) Improve eBPF verifier speed and increase maximum program size, from Alexei Starovoitov. 12) Eliminate per-bucket spinlocks in rhashtable, and instead use bit spinlocks. From Neil Brown. 13) Allow tunneling with GUE encap in ipvs, from Jacky Hu. 14) Improve link partner cap detection in generic PHY code, from Heiner Kallweit. 15) Add layer 2 encap support to bpf_skb_adjust_room(), from Alan Maguire. 16) Remove SKB list implementation assumptions in SCTP, your's truly. 17) Various cleanups, optimizations, and simplifications in r8169 driver. From Heiner Kallweit. 18) Add memory accounting on TX and RX path of SCTP, from Xin Long. 19) Switch PHY drivers over to use dynamic featue detection, from Heiner Kallweit. 20) Support flow steering without masking in dpaa2-eth, from Ioana Ciocoi. 21) Implement ndo_get_devlink_port in netdevsim driver, from Jiri Pirko. 22) Increase the strict parsing of current and future netlink attributes, also export such policies to userspace. From Johannes Berg. 23) Allow DSA tag drivers to be modular, from Andrew Lunn. 24) Remove legacy DSA probing support, also from Andrew Lunn. 25) Allow ll_temac driver to be used on non-x86 platforms, from Esben Haabendal. 26) Add a generic tracepoint for TX queue timeouts to ease debugging, from Cong Wang. 27) More indirect call optimizations, from Paolo Abeni" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1763 commits) cxgb4: Fix error path in cxgb4_init_module net: phy: improve pause mode reporting in phy_print_status dt-bindings: net: Fix a typo in the phy-mode list for ethernet bindings net: macb: Change interrupt and napi enable order in open net: ll_temac: Improve error message on error IRQ net/sched: remove block pointer from common offload structure net: ethernet: support of_get_mac_address new ERR_PTR error net: usb: smsc: fix warning reported by kbuild test robot staging: octeon-ethernet: Fix of_get_mac_address ERR_PTR check net: dsa: support of_get_mac_address new ERR_PTR error net: dsa: sja1105: Fix status initialization in sja1105_get_ethtool_stats vrf: sit mtu should not be updated when vrf netdev is the link net: dsa: Fix error cleanup path in dsa_init_module l2tp: Fix possible NULL pointer dereference taprio: add null check on sched_nest to avoid potential null pointer dereference net: mvpp2: cls: fix less than zero check on a u32 variable net_sched: sch_fq: handle non connected flows net_sched: sch_fq: do not assume EDT packets are ordered net: hns3: use devm_kcalloc when allocating desc_cb net: hns3: some cleanup for struct hns3_enet_ring ...
Diffstat (limited to 'drivers/net/dsa/mv88e6060.c')
-rw-r--r--drivers/net/dsa/mv88e6060.c217
1 files changed, 118 insertions, 99 deletions
diff --git a/drivers/net/dsa/mv88e6060.c b/drivers/net/dsa/mv88e6060.c
index 0b3e51f248c2..2a2489b5196d 100644
--- a/drivers/net/dsa/mv88e6060.c
+++ b/drivers/net/dsa/mv88e6060.c
@@ -1,11 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
/*
* net/dsa/mv88e6060.c - Driver for Marvell 88e6060 switch chips
* Copyright (c) 2008-2009 Marvell Semiconductor
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
*/
#include <linux/delay.h>
@@ -18,40 +14,16 @@
#include <net/dsa.h>
#include "mv88e6060.h"
-static int reg_read(struct dsa_switch *ds, int addr, int reg)
+static int reg_read(struct mv88e6060_priv *priv, int addr, int reg)
{
- struct mv88e6060_priv *priv = ds->priv;
-
return mdiobus_read_nested(priv->bus, priv->sw_addr + addr, reg);
}
-#define REG_READ(addr, reg) \
- ({ \
- int __ret; \
- \
- __ret = reg_read(ds, addr, reg); \
- if (__ret < 0) \
- return __ret; \
- __ret; \
- })
-
-
-static int reg_write(struct dsa_switch *ds, int addr, int reg, u16 val)
+static int reg_write(struct mv88e6060_priv *priv, int addr, int reg, u16 val)
{
- struct mv88e6060_priv *priv = ds->priv;
-
return mdiobus_write_nested(priv->bus, priv->sw_addr + addr, reg, val);
}
-#define REG_WRITE(addr, reg, val) \
- ({ \
- int __ret; \
- \
- __ret = reg_write(ds, addr, reg, val); \
- if (__ret < 0) \
- return __ret; \
- })
-
static const char *mv88e6060_get_name(struct mii_bus *bus, int sw_addr)
{
int ret;
@@ -76,28 +48,7 @@ static enum dsa_tag_protocol mv88e6060_get_tag_protocol(struct dsa_switch *ds,
return DSA_TAG_PROTO_TRAILER;
}
-static const char *mv88e6060_drv_probe(struct device *dsa_dev,
- struct device *host_dev, int sw_addr,
- void **_priv)
-{
- struct mii_bus *bus = dsa_host_dev_to_mii_bus(host_dev);
- struct mv88e6060_priv *priv;
- const char *name;
-
- name = mv88e6060_get_name(bus, sw_addr);
- if (name) {
- priv = devm_kzalloc(dsa_dev, sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return NULL;
- *_priv = priv;
- priv->bus = bus;
- priv->sw_addr = sw_addr;
- }
-
- return name;
-}
-
-static int mv88e6060_switch_reset(struct dsa_switch *ds)
+static int mv88e6060_switch_reset(struct mv88e6060_priv *priv)
{
int i;
int ret;
@@ -105,23 +56,32 @@ static int mv88e6060_switch_reset(struct dsa_switch *ds)
/* Set all ports to the disabled state. */
for (i = 0; i < MV88E6060_PORTS; i++) {
- ret = REG_READ(REG_PORT(i), PORT_CONTROL);
- REG_WRITE(REG_PORT(i), PORT_CONTROL,
- ret & ~PORT_CONTROL_STATE_MASK);
+ ret = reg_read(priv, REG_PORT(i), PORT_CONTROL);
+ if (ret < 0)
+ return ret;
+ ret = reg_write(priv, REG_PORT(i), PORT_CONTROL,
+ ret & ~PORT_CONTROL_STATE_MASK);
+ if (ret)
+ return ret;
}
/* Wait for transmit queues to drain. */
usleep_range(2000, 4000);
/* Reset the switch. */
- REG_WRITE(REG_GLOBAL, GLOBAL_ATU_CONTROL,
- GLOBAL_ATU_CONTROL_SWRESET |
- GLOBAL_ATU_CONTROL_LEARNDIS);
+ ret = reg_write(priv, REG_GLOBAL, GLOBAL_ATU_CONTROL,
+ GLOBAL_ATU_CONTROL_SWRESET |
+ GLOBAL_ATU_CONTROL_LEARNDIS);
+ if (ret)
+ return ret;
/* Wait up to one second for reset to complete. */
timeout = jiffies + 1 * HZ;
while (time_before(jiffies, timeout)) {
- ret = REG_READ(REG_GLOBAL, GLOBAL_STATUS);
+ ret = reg_read(priv, REG_GLOBAL, GLOBAL_STATUS);
+ if (ret < 0)
+ return ret;
+
if (ret & GLOBAL_STATUS_INIT_READY)
break;
@@ -133,61 +93,69 @@ static int mv88e6060_switch_reset(struct dsa_switch *ds)
return 0;
}
-static int mv88e6060_setup_global(struct dsa_switch *ds)
+static int mv88e6060_setup_global(struct mv88e6060_priv *priv)
{
+ int ret;
+
/* Disable discarding of frames with excessive collisions,
* set the maximum frame size to 1536 bytes, and mask all
* interrupt sources.
*/
- REG_WRITE(REG_GLOBAL, GLOBAL_CONTROL, GLOBAL_CONTROL_MAX_FRAME_1536);
+ ret = reg_write(priv, REG_GLOBAL, GLOBAL_CONTROL,
+ GLOBAL_CONTROL_MAX_FRAME_1536);
+ if (ret)
+ return ret;
/* Disable automatic address learning.
*/
- REG_WRITE(REG_GLOBAL, GLOBAL_ATU_CONTROL,
- GLOBAL_ATU_CONTROL_LEARNDIS);
-
- return 0;
+ return reg_write(priv, REG_GLOBAL, GLOBAL_ATU_CONTROL,
+ GLOBAL_ATU_CONTROL_LEARNDIS);
}
-static int mv88e6060_setup_port(struct dsa_switch *ds, int p)
+static int mv88e6060_setup_port(struct mv88e6060_priv *priv, int p)
{
int addr = REG_PORT(p);
+ int ret;
/* Do not force flow control, disable Ingress and Egress
* Header tagging, disable VLAN tunneling, and set the port
* state to Forwarding. Additionally, if this is the CPU
* port, enable Ingress and Egress Trailer tagging mode.
*/
- REG_WRITE(addr, PORT_CONTROL,
- dsa_is_cpu_port(ds, p) ?
+ ret = reg_write(priv, addr, PORT_CONTROL,
+ dsa_is_cpu_port(priv->ds, p) ?
PORT_CONTROL_TRAILER |
PORT_CONTROL_INGRESS_MODE |
PORT_CONTROL_STATE_FORWARDING :
PORT_CONTROL_STATE_FORWARDING);
+ if (ret)
+ return ret;
/* Port based VLAN map: give each port its own address
* database, allow the CPU port to talk to each of the 'real'
* ports, and allow each of the 'real' ports to only talk to
* the CPU port.
*/
- REG_WRITE(addr, PORT_VLAN_MAP,
- ((p & 0xf) << PORT_VLAN_MAP_DBNUM_SHIFT) |
- (dsa_is_cpu_port(ds, p) ? dsa_user_ports(ds) :
- BIT(dsa_to_port(ds, p)->cpu_dp->index)));
+ ret = reg_write(priv, addr, PORT_VLAN_MAP,
+ ((p & 0xf) << PORT_VLAN_MAP_DBNUM_SHIFT) |
+ (dsa_is_cpu_port(priv->ds, p) ?
+ dsa_user_ports(priv->ds) :
+ BIT(dsa_to_port(priv->ds, p)->cpu_dp->index)));
+ if (ret)
+ return ret;
/* Port Association Vector: when learning source addresses
* of packets, add the address to the address database using
* a port bitmap that has only the bit for this port set and
* the other bits clear.
*/
- REG_WRITE(addr, PORT_ASSOC_VECTOR, BIT(p));
-
- return 0;
+ return reg_write(priv, addr, PORT_ASSOC_VECTOR, BIT(p));
}
-static int mv88e6060_setup_addr(struct dsa_switch *ds)
+static int mv88e6060_setup_addr(struct mv88e6060_priv *priv)
{
u8 addr[ETH_ALEN];
+ int ret;
u16 val;
eth_random_addr(addr);
@@ -199,34 +167,43 @@ static int mv88e6060_setup_addr(struct dsa_switch *ds)
*/
val &= 0xfeff;
- REG_WRITE(REG_GLOBAL, GLOBAL_MAC_01, val);
- REG_WRITE(REG_GLOBAL, GLOBAL_MAC_23, (addr[2] << 8) | addr[3]);
- REG_WRITE(REG_GLOBAL, GLOBAL_MAC_45, (addr[4] << 8) | addr[5]);
+ ret = reg_write(priv, REG_GLOBAL, GLOBAL_MAC_01, val);
+ if (ret)
+ return ret;
+
+ ret = reg_write(priv, REG_GLOBAL, GLOBAL_MAC_23,
+ (addr[2] << 8) | addr[3]);
+ if (ret)
+ return ret;
- return 0;
+ return reg_write(priv, REG_GLOBAL, GLOBAL_MAC_45,
+ (addr[4] << 8) | addr[5]);
}
static int mv88e6060_setup(struct dsa_switch *ds)
{
+ struct mv88e6060_priv *priv = ds->priv;
int ret;
int i;
- ret = mv88e6060_switch_reset(ds);
+ priv->ds = ds;
+
+ ret = mv88e6060_switch_reset(priv);
if (ret < 0)
return ret;
/* @@@ initialise atu */
- ret = mv88e6060_setup_global(ds);
+ ret = mv88e6060_setup_global(priv);
if (ret < 0)
return ret;
- ret = mv88e6060_setup_addr(ds);
+ ret = mv88e6060_setup_addr(priv);
if (ret < 0)
return ret;
for (i = 0; i < MV88E6060_PORTS; i++) {
- ret = mv88e6060_setup_port(ds, i);
+ ret = mv88e6060_setup_port(priv, i);
if (ret < 0)
return ret;
}
@@ -243,51 +220,93 @@ static int mv88e6060_port_to_phy_addr(int port)
static int mv88e6060_phy_read(struct dsa_switch *ds, int port, int regnum)
{
+ struct mv88e6060_priv *priv = ds->priv;
int addr;
addr = mv88e6060_port_to_phy_addr(port);
if (addr == -1)
return 0xffff;
- return reg_read(ds, addr, regnum);
+ return reg_read(priv, addr, regnum);
}
static int
mv88e6060_phy_write(struct dsa_switch *ds, int port, int regnum, u16 val)
{
+ struct mv88e6060_priv *priv = ds->priv;
int addr;
addr = mv88e6060_port_to_phy_addr(port);
if (addr == -1)
return 0xffff;
- return reg_write(ds, addr, regnum, val);
+ return reg_write(priv, addr, regnum, val);
}
static const struct dsa_switch_ops mv88e6060_switch_ops = {
.get_tag_protocol = mv88e6060_get_tag_protocol,
- .probe = mv88e6060_drv_probe,
.setup = mv88e6060_setup,
.phy_read = mv88e6060_phy_read,
.phy_write = mv88e6060_phy_write,
};
-static struct dsa_switch_driver mv88e6060_switch_drv = {
- .ops = &mv88e6060_switch_ops,
-};
-
-static int __init mv88e6060_init(void)
+static int mv88e6060_probe(struct mdio_device *mdiodev)
{
- register_switch_driver(&mv88e6060_switch_drv);
- return 0;
+ struct device *dev = &mdiodev->dev;
+ struct mv88e6060_priv *priv;
+ struct dsa_switch *ds;
+ const char *name;
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->bus = mdiodev->bus;
+ priv->sw_addr = mdiodev->addr;
+
+ name = mv88e6060_get_name(priv->bus, priv->sw_addr);
+ if (!name)
+ return -ENODEV;
+
+ dev_info(dev, "switch %s detected\n", name);
+
+ ds = dsa_switch_alloc(dev, MV88E6060_PORTS);
+ if (!ds)
+ return -ENOMEM;
+
+ ds->priv = priv;
+ ds->dev = dev;
+ ds->ops = &mv88e6060_switch_ops;
+
+ dev_set_drvdata(dev, ds);
+
+ return dsa_register_switch(ds);
}
-module_init(mv88e6060_init);
-static void __exit mv88e6060_cleanup(void)
+static void mv88e6060_remove(struct mdio_device *mdiodev)
{
- unregister_switch_driver(&mv88e6060_switch_drv);
+ struct dsa_switch *ds = dev_get_drvdata(&mdiodev->dev);
+
+ dsa_unregister_switch(ds);
}
-module_exit(mv88e6060_cleanup);
+
+static const struct of_device_id mv88e6060_of_match[] = {
+ {
+ .compatible = "marvell,mv88e6060",
+ },
+ { /* sentinel */ },
+};
+
+static struct mdio_driver mv88e6060_driver = {
+ .probe = mv88e6060_probe,
+ .remove = mv88e6060_remove,
+ .mdiodrv.driver = {
+ .name = "mv88e6060",
+ .of_match_table = mv88e6060_of_match,
+ },
+};
+
+mdio_module_driver(mv88e6060_driver);
MODULE_AUTHOR("Lennert Buytenhek <[email protected]>");
MODULE_DESCRIPTION("Driver for Marvell 88E6060 ethernet switch chip");