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authorLinus Torvalds2019-07-11 19:55:49 +0200
committerLinus Torvalds2019-07-11 19:55:49 +0200
commit237f83dfbe668443b5e31c3c7576125871cca674 (patch)
tree11848a8d0aa414a1d3ce2024e181071b1d9dea08 /drivers/net/dsa/microchip/ksz9477.c
parentMerge tag 'clone3-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/brau... (diff)
parentnet/mlx5e: Return in default case statement in tx_post_resync_params (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller: "Some highlights from this development cycle: 1) Big refactoring of ipv6 route and neigh handling to support nexthop objects configurable as units from userspace. From David Ahern. 2) Convert explored_states in BPF verifier into a hash table, significantly decreased state held for programs with bpf2bpf calls, from Alexei Starovoitov. 3) Implement bpf_send_signal() helper, from Yonghong Song. 4) Various classifier enhancements to mvpp2 driver, from Maxime Chevallier. 5) Add aRFS support to hns3 driver, from Jian Shen. 6) Fix use after free in inet frags by allocating fqdirs dynamically and reworking how rhashtable dismantle occurs, from Eric Dumazet. 7) Add act_ctinfo packet classifier action, from Kevin Darbyshire-Bryant. 8) Add TFO key backup infrastructure, from Jason Baron. 9) Remove several old and unused ISDN drivers, from Arnd Bergmann. 10) Add devlink notifications for flash update status to mlxsw driver, from Jiri Pirko. 11) Lots of kTLS offload infrastructure fixes, from Jakub Kicinski. 12) Add support for mv88e6250 DSA chips, from Rasmus Villemoes. 13) Various enhancements to ipv6 flow label handling, from Eric Dumazet and Willem de Bruijn. 14) Support TLS offload in nfp driver, from Jakub Kicinski, Dirk van der Merwe, and others. 15) Various improvements to axienet driver including converting it to phylink, from Robert Hancock. 16) Add PTP support to sja1105 DSA driver, from Vladimir Oltean. 17) Add mqprio qdisc offload support to dpaa2-eth, from Ioana Radulescu. 18) Add devlink health reporting to mlx5, from Moshe Shemesh. 19) Convert stmmac over to phylink, from Jose Abreu. 20) Add PTP PHC (Physical Hardware Clock) support to mlxsw, from Shalom Toledo. 21) Add nftables SYNPROXY support, from Fernando Fernandez Mancera. 22) Convert tcp_fastopen over to use SipHash, from Ard Biesheuvel. 23) Track spill/fill of constants in BPF verifier, from Alexei Starovoitov. 24) Support bounded loops in BPF, from Alexei Starovoitov. 25) Various page_pool API fixes and improvements, from Jesper Dangaard Brouer. 26) Just like ipv4, support ref-countless ipv6 route handling. From Wei Wang. 27) Support VLAN offloading in aquantia driver, from Igor Russkikh. 28) Add AF_XDP zero-copy support to mlx5, from Maxim Mikityanskiy. 29) Add flower GRE encap/decap support to nfp driver, from Pieter Jansen van Vuuren. 30) Protect against stack overflow when using act_mirred, from John Hurley. 31) Allow devmap map lookups from eBPF, from Toke Høiland-Jørgensen. 32) Use page_pool API in netsec driver, Ilias Apalodimas. 33) Add Google gve network driver, from Catherine Sullivan. 34) More indirect call avoidance, from Paolo Abeni. 35) Add kTLS TX HW offload support to mlx5, from Tariq Toukan. 36) Add XDP_REDIRECT support to bnxt_en, from Andy Gospodarek. 37) Add MPLS manipulation actions to TC, from John Hurley. 38) Add sending a packet to connection tracking from TC actions, and then allow flower classifier matching on conntrack state. From Paul Blakey. 39) Netfilter hw offload support, from Pablo Neira Ayuso" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2080 commits) net/mlx5e: Return in default case statement in tx_post_resync_params mlx5: Return -EINVAL when WARN_ON_ONCE triggers in mlx5e_tls_resync(). net: dsa: add support for BRIDGE_MROUTER attribute pkt_sched: Include const.h net: netsec: remove static declaration for netsec_set_tx_de() net: netsec: remove superfluous if statement netfilter: nf_tables: add hardware offload support net: flow_offload: rename tc_cls_flower_offload to flow_cls_offload net: flow_offload: add flow_block_cb_is_busy() and use it net: sched: remove tcf block API drivers: net: use flow block API net: sched: use flow block API net: flow_offload: add flow_block_cb_{priv, incref, decref}() net: flow_offload: add list handling functions net: flow_offload: add flow_block_cb_alloc() and flow_block_cb_free() net: flow_offload: rename TCF_BLOCK_BINDER_TYPE_* to FLOW_BLOCK_BINDER_TYPE_* net: flow_offload: rename TC_BLOCK_{UN}BIND to FLOW_BLOCK_{UN}BIND net: flow_offload: add flow_block_cb_setup_simple() net: hisilicon: Add an tx_desc to adapt HI13X1_GMAC net: hisilicon: Add an rx_desc to adapt HI13X1_GMAC ...
Diffstat (limited to 'drivers/net/dsa/microchip/ksz9477.c')
-rw-r--r--drivers/net/dsa/microchip/ksz9477.c229
1 files changed, 128 insertions, 101 deletions
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index c026d15721f6..a8c97f7a79b7 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -65,51 +65,36 @@ static const struct {
{ 0x83, "tx_discards" },
};
-static void ksz9477_cfg32(struct ksz_device *dev, u32 addr, u32 bits, bool set)
+static void ksz_cfg(struct ksz_device *dev, u32 addr, u8 bits, bool set)
{
- u32 data;
+ regmap_update_bits(dev->regmap[0], addr, bits, set ? bits : 0);
+}
- ksz_read32(dev, addr, &data);
- if (set)
- data |= bits;
- else
- data &= ~bits;
- ksz_write32(dev, addr, data);
+static void ksz_port_cfg(struct ksz_device *dev, int port, int offset, u8 bits,
+ bool set)
+{
+ regmap_update_bits(dev->regmap[0], PORT_CTRL_ADDR(port, offset),
+ bits, set ? bits : 0);
+}
+
+static void ksz9477_cfg32(struct ksz_device *dev, u32 addr, u32 bits, bool set)
+{
+ regmap_update_bits(dev->regmap[2], addr, bits, set ? bits : 0);
}
static void ksz9477_port_cfg32(struct ksz_device *dev, int port, int offset,
u32 bits, bool set)
{
- u32 addr;
- u32 data;
-
- addr = PORT_CTRL_ADDR(port, offset);
- ksz_read32(dev, addr, &data);
-
- if (set)
- data |= bits;
- else
- data &= ~bits;
-
- ksz_write32(dev, addr, data);
+ regmap_update_bits(dev->regmap[2], PORT_CTRL_ADDR(port, offset),
+ bits, set ? bits : 0);
}
-static int ksz9477_wait_vlan_ctrl_ready(struct ksz_device *dev, u32 waiton,
- int timeout)
+static int ksz9477_wait_vlan_ctrl_ready(struct ksz_device *dev)
{
- u8 data;
+ unsigned int val;
- do {
- ksz_read8(dev, REG_SW_VLAN_CTRL, &data);
- if (!(data & waiton))
- break;
- usleep_range(1, 10);
- } while (timeout-- > 0);
-
- if (timeout <= 0)
- return -ETIMEDOUT;
-
- return 0;
+ return regmap_read_poll_timeout(dev->regmap[0], REG_SW_VLAN_CTRL,
+ val, !(val & VLAN_START), 10, 1000);
}
static int ksz9477_get_vlan_table(struct ksz_device *dev, u16 vid,
@@ -123,8 +108,8 @@ static int ksz9477_get_vlan_table(struct ksz_device *dev, u16 vid,
ksz_write8(dev, REG_SW_VLAN_CTRL, VLAN_READ | VLAN_START);
/* wait to be cleared */
- ret = ksz9477_wait_vlan_ctrl_ready(dev, VLAN_START, 1000);
- if (ret < 0) {
+ ret = ksz9477_wait_vlan_ctrl_ready(dev);
+ if (ret) {
dev_dbg(dev->dev, "Failed to read vlan table\n");
goto exit;
}
@@ -156,8 +141,8 @@ static int ksz9477_set_vlan_table(struct ksz_device *dev, u16 vid,
ksz_write8(dev, REG_SW_VLAN_CTRL, VLAN_START | VLAN_WRITE);
/* wait to be cleared */
- ret = ksz9477_wait_vlan_ctrl_ready(dev, VLAN_START, 1000);
- if (ret < 0) {
+ ret = ksz9477_wait_vlan_ctrl_ready(dev);
+ if (ret) {
dev_dbg(dev->dev, "Failed to write vlan table\n");
goto exit;
}
@@ -191,55 +176,35 @@ static void ksz9477_write_table(struct ksz_device *dev, u32 *table)
ksz_write32(dev, REG_SW_ALU_VAL_D, table[3]);
}
-static int ksz9477_wait_alu_ready(struct ksz_device *dev, u32 waiton,
- int timeout)
+static int ksz9477_wait_alu_ready(struct ksz_device *dev)
{
- u32 data;
-
- do {
- ksz_read32(dev, REG_SW_ALU_CTRL__4, &data);
- if (!(data & waiton))
- break;
- usleep_range(1, 10);
- } while (timeout-- > 0);
+ unsigned int val;
- if (timeout <= 0)
- return -ETIMEDOUT;
-
- return 0;
+ return regmap_read_poll_timeout(dev->regmap[2], REG_SW_ALU_CTRL__4,
+ val, !(val & ALU_START), 10, 1000);
}
-static int ksz9477_wait_alu_sta_ready(struct ksz_device *dev, u32 waiton,
- int timeout)
+static int ksz9477_wait_alu_sta_ready(struct ksz_device *dev)
{
- u32 data;
+ unsigned int val;
- do {
- ksz_read32(dev, REG_SW_ALU_STAT_CTRL__4, &data);
- if (!(data & waiton))
- break;
- usleep_range(1, 10);
- } while (timeout-- > 0);
-
- if (timeout <= 0)
- return -ETIMEDOUT;
-
- return 0;
+ return regmap_read_poll_timeout(dev->regmap[2],
+ REG_SW_ALU_STAT_CTRL__4,
+ val, !(val & ALU_STAT_START),
+ 10, 1000);
}
static int ksz9477_reset_switch(struct ksz_device *dev)
{
u8 data8;
- u16 data16;
u32 data32;
/* reset switch */
ksz_cfg(dev, REG_SW_OPERATION, SW_RESET, true);
/* turn off SPI DO Edge select */
- ksz_read8(dev, REG_SW_GLOBAL_SERIAL_CTRL_0, &data8);
- data8 &= ~SPI_AUTO_EDGE_DETECTION;
- ksz_write8(dev, REG_SW_GLOBAL_SERIAL_CTRL_0, data8);
+ regmap_update_bits(dev->regmap[0], REG_SW_GLOBAL_SERIAL_CTRL_0,
+ SPI_AUTO_EDGE_DETECTION, 0);
/* default configuration */
ksz_read8(dev, REG_SW_LUE_CTRL_1, &data8);
@@ -253,10 +218,14 @@ static int ksz9477_reset_switch(struct ksz_device *dev)
ksz_read32(dev, REG_SW_PORT_INT_STATUS__4, &data32);
/* set broadcast storm protection 10% rate */
- ksz_read16(dev, REG_SW_MAC_CTRL_2, &data16);
- data16 &= ~BROADCAST_STORM_RATE;
- data16 |= (BROADCAST_STORM_VALUE * BROADCAST_STORM_PROT_RATE) / 100;
- ksz_write16(dev, REG_SW_MAC_CTRL_2, data16);
+ regmap_update_bits(dev->regmap[1], REG_SW_MAC_CTRL_2,
+ BROADCAST_STORM_RATE,
+ (BROADCAST_STORM_VALUE *
+ BROADCAST_STORM_PROT_RATE) / 100);
+
+ if (dev->synclko_125)
+ ksz_write8(dev, REG_SW_GLOBAL_OUTPUT_CTRL__1,
+ SW_ENABLE_REFCLKO | SW_REFCLKO_IS_125MHZ);
return 0;
}
@@ -264,12 +233,8 @@ static int ksz9477_reset_switch(struct ksz_device *dev)
static void ksz9477_r_mib_cnt(struct ksz_device *dev, int port, u16 addr,
u64 *cnt)
{
- struct ksz_poll_ctx ctx = {
- .dev = dev,
- .port = port,
- .offset = REG_PORT_MIB_CTRL_STAT__4,
- };
struct ksz_port *p = &dev->ports[port];
+ unsigned int val;
u32 data;
int ret;
@@ -279,11 +244,11 @@ static void ksz9477_r_mib_cnt(struct ksz_device *dev, int port, u16 addr,
data |= (addr << MIB_COUNTER_INDEX_S);
ksz_pwrite32(dev, port, REG_PORT_MIB_CTRL_STAT__4, data);
- ret = readx_poll_timeout(ksz_pread32_poll, &ctx, data,
- !(data & MIB_COUNTER_READ), 10, 1000);
-
+ ret = regmap_read_poll_timeout(dev->regmap[2],
+ PORT_CTRL_ADDR(port, REG_PORT_MIB_CTRL_STAT__4),
+ val, !(val & MIB_COUNTER_READ), 10, 1000);
/* failed to read MIB. get out of loop */
- if (ret < 0) {
+ if (ret) {
dev_dbg(dev->dev, "Failed to get MIB\n");
return;
}
@@ -518,10 +483,10 @@ static void ksz9477_flush_dyn_mac_table(struct ksz_device *dev, int port)
{
u8 data;
- ksz_read8(dev, REG_SW_LUE_CTRL_2, &data);
- data &= ~(SW_FLUSH_OPTION_M << SW_FLUSH_OPTION_S);
- data |= (SW_FLUSH_OPTION_DYN_MAC << SW_FLUSH_OPTION_S);
- ksz_write8(dev, REG_SW_LUE_CTRL_2, data);
+ regmap_update_bits(dev->regmap[0], REG_SW_LUE_CTRL_2,
+ SW_FLUSH_OPTION_M << SW_FLUSH_OPTION_S,
+ SW_FLUSH_OPTION_DYN_MAC << SW_FLUSH_OPTION_S);
+
if (port < dev->mib_port_cnt) {
/* flush individual port */
ksz_pread8(dev, port, P_STP_CTRL, &data);
@@ -648,8 +613,8 @@ static int ksz9477_port_fdb_add(struct dsa_switch *ds, int port,
ksz_write32(dev, REG_SW_ALU_CTRL__4, ALU_READ | ALU_START);
/* wait to be finished */
- ret = ksz9477_wait_alu_ready(dev, ALU_START, 1000);
- if (ret < 0) {
+ ret = ksz9477_wait_alu_ready(dev);
+ if (ret) {
dev_dbg(dev->dev, "Failed to read ALU\n");
goto exit;
}
@@ -672,8 +637,8 @@ static int ksz9477_port_fdb_add(struct dsa_switch *ds, int port,
ksz_write32(dev, REG_SW_ALU_CTRL__4, ALU_WRITE | ALU_START);
/* wait to be finished */
- ret = ksz9477_wait_alu_ready(dev, ALU_START, 1000);
- if (ret < 0)
+ ret = ksz9477_wait_alu_ready(dev);
+ if (ret)
dev_dbg(dev->dev, "Failed to write ALU\n");
exit:
@@ -705,8 +670,8 @@ static int ksz9477_port_fdb_del(struct dsa_switch *ds, int port,
ksz_write32(dev, REG_SW_ALU_CTRL__4, ALU_READ | ALU_START);
/* wait to be finished */
- ret = ksz9477_wait_alu_ready(dev, ALU_START, 1000);
- if (ret < 0) {
+ ret = ksz9477_wait_alu_ready(dev);
+ if (ret) {
dev_dbg(dev->dev, "Failed to read ALU\n");
goto exit;
}
@@ -739,8 +704,8 @@ static int ksz9477_port_fdb_del(struct dsa_switch *ds, int port,
ksz_write32(dev, REG_SW_ALU_CTRL__4, ALU_WRITE | ALU_START);
/* wait to be finished */
- ret = ksz9477_wait_alu_ready(dev, ALU_START, 1000);
- if (ret < 0)
+ ret = ksz9477_wait_alu_ready(dev);
+ if (ret)
dev_dbg(dev->dev, "Failed to write ALU\n");
exit:
@@ -846,7 +811,7 @@ static void ksz9477_port_mdb_add(struct dsa_switch *ds, int port,
ksz_write32(dev, REG_SW_ALU_STAT_CTRL__4, data);
/* wait to be finished */
- if (ksz9477_wait_alu_sta_ready(dev, ALU_STAT_START, 1000) < 0) {
+ if (ksz9477_wait_alu_sta_ready(dev)) {
dev_dbg(dev->dev, "Failed to read ALU STATIC\n");
goto exit;
}
@@ -887,7 +852,7 @@ static void ksz9477_port_mdb_add(struct dsa_switch *ds, int port,
ksz_write32(dev, REG_SW_ALU_STAT_CTRL__4, data);
/* wait to be finished */
- if (ksz9477_wait_alu_sta_ready(dev, ALU_STAT_START, 1000) < 0)
+ if (ksz9477_wait_alu_sta_ready(dev))
dev_dbg(dev->dev, "Failed to read ALU STATIC\n");
exit:
@@ -917,8 +882,8 @@ static int ksz9477_port_mdb_del(struct dsa_switch *ds, int port,
ksz_write32(dev, REG_SW_ALU_STAT_CTRL__4, data);
/* wait to be finished */
- ret = ksz9477_wait_alu_sta_ready(dev, ALU_STAT_START, 1000);
- if (ret < 0) {
+ ret = ksz9477_wait_alu_sta_ready(dev);
+ if (ret) {
dev_dbg(dev->dev, "Failed to read ALU STATIC\n");
goto exit;
}
@@ -959,8 +924,8 @@ static int ksz9477_port_mdb_del(struct dsa_switch *ds, int port,
ksz_write32(dev, REG_SW_ALU_STAT_CTRL__4, data);
/* wait to be finished */
- ret = ksz9477_wait_alu_sta_ready(dev, ALU_STAT_START, 1000);
- if (ret < 0)
+ ret = ksz9477_wait_alu_sta_ready(dev);
+ if (ret)
dev_dbg(dev->dev, "Failed to read ALU STATIC\n");
exit:
@@ -1165,6 +1130,62 @@ static phy_interface_t ksz9477_get_interface(struct ksz_device *dev, int port)
return interface;
}
+static void ksz9477_port_mmd_write(struct ksz_device *dev, int port,
+ u8 dev_addr, u16 reg_addr, u16 val)
+{
+ ksz_pwrite16(dev, port, REG_PORT_PHY_MMD_SETUP,
+ MMD_SETUP(PORT_MMD_OP_INDEX, dev_addr));
+ ksz_pwrite16(dev, port, REG_PORT_PHY_MMD_INDEX_DATA, reg_addr);
+ ksz_pwrite16(dev, port, REG_PORT_PHY_MMD_SETUP,
+ MMD_SETUP(PORT_MMD_OP_DATA_NO_INCR, dev_addr));
+ ksz_pwrite16(dev, port, REG_PORT_PHY_MMD_INDEX_DATA, val);
+}
+
+static void ksz9477_phy_errata_setup(struct ksz_device *dev, int port)
+{
+ /* Apply PHY settings to address errata listed in
+ * KSZ9477, KSZ9897, KSZ9896, KSZ9567, KSZ8565
+ * Silicon Errata and Data Sheet Clarification documents:
+ *
+ * Register settings are needed to improve PHY receive performance
+ */
+ ksz9477_port_mmd_write(dev, port, 0x01, 0x6f, 0xdd0b);
+ ksz9477_port_mmd_write(dev, port, 0x01, 0x8f, 0x6032);
+ ksz9477_port_mmd_write(dev, port, 0x01, 0x9d, 0x248c);
+ ksz9477_port_mmd_write(dev, port, 0x01, 0x75, 0x0060);
+ ksz9477_port_mmd_write(dev, port, 0x01, 0xd3, 0x7777);
+ ksz9477_port_mmd_write(dev, port, 0x1c, 0x06, 0x3008);
+ ksz9477_port_mmd_write(dev, port, 0x1c, 0x08, 0x2001);
+
+ /* Transmit waveform amplitude can be improved
+ * (1000BASE-T, 100BASE-TX, 10BASE-Te)
+ */
+ ksz9477_port_mmd_write(dev, port, 0x1c, 0x04, 0x00d0);
+
+ /* Energy Efficient Ethernet (EEE) feature select must
+ * be manually disabled (except on KSZ8565 which is 100Mbit)
+ */
+ if (dev->features & GBIT_SUPPORT)
+ ksz9477_port_mmd_write(dev, port, 0x07, 0x3c, 0x0000);
+
+ /* Register settings are required to meet data sheet
+ * supply current specifications
+ */
+ ksz9477_port_mmd_write(dev, port, 0x1c, 0x13, 0x6eff);
+ ksz9477_port_mmd_write(dev, port, 0x1c, 0x14, 0xe6ff);
+ ksz9477_port_mmd_write(dev, port, 0x1c, 0x15, 0x6eff);
+ ksz9477_port_mmd_write(dev, port, 0x1c, 0x16, 0xe6ff);
+ ksz9477_port_mmd_write(dev, port, 0x1c, 0x17, 0x00ff);
+ ksz9477_port_mmd_write(dev, port, 0x1c, 0x18, 0x43ff);
+ ksz9477_port_mmd_write(dev, port, 0x1c, 0x19, 0xc3ff);
+ ksz9477_port_mmd_write(dev, port, 0x1c, 0x1a, 0x6fff);
+ ksz9477_port_mmd_write(dev, port, 0x1c, 0x1b, 0x07ff);
+ ksz9477_port_mmd_write(dev, port, 0x1c, 0x1c, 0x0fff);
+ ksz9477_port_mmd_write(dev, port, 0x1c, 0x1d, 0xe7ff);
+ ksz9477_port_mmd_write(dev, port, 0x1c, 0x1e, 0xefff);
+ ksz9477_port_mmd_write(dev, port, 0x1c, 0x20, 0xeeee);
+}
+
static void ksz9477_port_setup(struct ksz_device *dev, int port, bool cpu_port)
{
u8 data8;
@@ -1203,6 +1224,8 @@ static void ksz9477_port_setup(struct ksz_device *dev, int port, bool cpu_port)
PORT_FORCE_TX_FLOW_CTRL | PORT_FORCE_RX_FLOW_CTRL,
false);
+ if (dev->phy_errata_9477)
+ ksz9477_phy_errata_setup(dev, port);
} else {
/* force flow control */
ksz_port_cfg(dev, port, REG_PORT_CTRL_0,
@@ -1474,6 +1497,7 @@ struct ksz_chip_data {
int num_statics;
int cpu_ports;
int port_cnt;
+ bool phy_errata_9477;
};
static const struct ksz_chip_data ksz9477_switch_chips[] = {
@@ -1485,6 +1509,7 @@ static const struct ksz_chip_data ksz9477_switch_chips[] = {
.num_statics = 16,
.cpu_ports = 0x7F, /* can be configured as cpu port */
.port_cnt = 7, /* total physical port count */
+ .phy_errata_9477 = true,
},
{
.chip_id = 0x00989700,
@@ -1494,6 +1519,7 @@ static const struct ksz_chip_data ksz9477_switch_chips[] = {
.num_statics = 16,
.cpu_ports = 0x7F, /* can be configured as cpu port */
.port_cnt = 7, /* total physical port count */
+ .phy_errata_9477 = true,
},
{
.chip_id = 0x00989300,
@@ -1522,6 +1548,7 @@ static int ksz9477_switch_init(struct ksz_device *dev)
dev->num_statics = chip->num_statics;
dev->port_cnt = chip->port_cnt;
dev->cpu_ports = chip->cpu_ports;
+ dev->phy_errata_9477 = chip->phy_errata_9477;
break;
}