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author | 2023-02-21 18:24:12 -0800 | |
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committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/net/ethernet/chelsio/cxgb3/ael1002.c | |
download | linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip |
Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
Pull networking updates from Jakub Kicinski:
"Core:
- Add dedicated kmem_cache for typical/small skb->head, avoid having
to access struct page at kfree time, and improve memory use.
- Introduce sysctl to set default RPS configuration for new netdevs.
- Define Netlink protocol specification format which can be used to
describe messages used by each family and auto-generate parsers.
Add tools for generating kernel data structures and uAPI headers.
- Expose all net/core sysctls inside netns.
- Remove 4s sleep in netpoll if carrier is instantly detected on
boot.
- Add configurable limit of MDB entries per port, and port-vlan.
- Continue populating drop reasons throughout the stack.
- Retire a handful of legacy Qdiscs and classifiers.
Protocols:
- Support IPv4 big TCP (TSO frames larger than 64kB).
- Add IP_LOCAL_PORT_RANGE socket option, to control local port range
on socket by socket basis.
- Track and report in procfs number of MPTCP sockets used.
- Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
manager.
- IPv6: don't check net.ipv6.route.max_size and rely on garbage
collection to free memory (similarly to IPv4).
- Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).
- ICMP: add per-rate limit counters.
- Add support for user scanning requests in ieee802154.
- Remove static WEP support.
- Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
reporting.
- WiFi 7 EHT channel puncturing support (client & AP).
BPF:
- Add a rbtree data structure following the "next-gen data structure"
precedent set by recently added linked list, that is, by using
kfunc + kptr instead of adding a new BPF map type.
- Expose XDP hints via kfuncs with initial support for RX hash and
timestamp metadata.
- Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
better support decap on GRE tunnel devices not operating in collect
metadata.
- Improve x86 JIT's codegen for PROBE_MEM runtime error checks.
- Remove the need for trace_printk_lock for bpf_trace_printk and
bpf_trace_vprintk helpers.
- Extend libbpf's bpf_tracing.h support for tracing arguments of
kprobes/uprobes and syscall as a special case.
- Significantly reduce the search time for module symbols by
livepatch and BPF.
- Enable cpumasks to be used as kptrs, which is useful for tracing
programs tracking which tasks end up running on which CPUs in
different time intervals.
- Add support for BPF trampoline on s390x and riscv64.
- Add capability to export the XDP features supported by the NIC.
- Add __bpf_kfunc tag for marking kernel functions as kfuncs.
- Add cgroup.memory=nobpf kernel parameter option to disable BPF
memory accounting for container environments.
Netfilter:
- Remove the CLUSTERIP target. It has been marked as obsolete for
years, and we still have WARN splats wrt races of the out-of-band
/proc interface installed by this target.
- Add 'destroy' commands to nf_tables. They are identical to the
existing 'delete' commands, but do not return an error if the
referenced object (set, chain, rule...) did not exist.
Driver API:
- Improve cpumask_local_spread() locality to help NICs set the right
IRQ affinity on AMD platforms.
- Separate C22 and C45 MDIO bus transactions more clearly.
- Introduce new DCB table to control DSCP rewrite on egress.
- Support configuration of Physical Layer Collision Avoidance (PLCA)
Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
shared medium Ethernet.
- Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
preemption of low priority frames by high priority frames.
- Add support for controlling MACSec offload using netlink SET.
- Rework devlink instance refcounts to allow registration and
de-registration under the instance lock. Split the code into
multiple files, drop some of the unnecessarily granular locks and
factor out common parts of netlink operation handling.
- Add TX frame aggregation parameters (for USB drivers).
- Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
messages with notifications for debug.
- Allow offloading of UDP NEW connections via act_ct.
- Add support for per action HW stats in TC.
- Support hardware miss to TC action (continue processing in SW from
a specific point in the action chain).
- Warn if old Wireless Extension user space interface is used with
modern cfg80211/mac80211 drivers. Do not support Wireless
Extensions for Wi-Fi 7 devices at all. Everyone should switch to
using nl80211 interface instead.
- Improve the CAN bit timing configuration. Use extack to return
error messages directly to user space, update the SJW handling,
including the definition of a new default value that will benefit
CAN-FD controllers, by increasing their oscillator tolerance.
New hardware / drivers:
- Ethernet:
- nVidia BlueField-3 support (control traffic driver)
- Ethernet support for imx93 SoCs
- Motorcomm yt8531 gigabit Ethernet PHY
- onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
- Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
- Amlogic gxl MDIO mux
- WiFi:
- RealTek RTL8188EU (rtl8xxxu)
- Qualcomm Wi-Fi 7 devices (ath12k)
- CAN:
- Renesas R-Car V4H
Drivers:
- Bluetooth:
- Set Per Platform Antenna Gain (PPAG) for Intel controllers.
- Ethernet NICs:
- Intel (1G, igc):
- support TSN / Qbv / packet scheduling features of i226 model
- Intel (100G, ice):
- use GNSS subsystem instead of TTY
- multi-buffer XDP support
- extend support for GPIO pins to E823 devices
- nVidia/Mellanox:
- update the shared buffer configuration on PFC commands
- implement PTP adjphase function for HW offset control
- TC support for Geneve and GRE with VF tunnel offload
- more efficient crypto key management method
- multi-port eswitch support
- Netronome/Corigine:
- add DCB IEEE support
- support IPsec offloading for NFP3800
- Freescale/NXP (enetc):
- support XDP_REDIRECT for XDP non-linear buffers
- improve reconfig, avoid link flap and waiting for idle
- support MAC Merge layer
- Other NICs:
- sfc/ef100: add basic devlink support for ef100
- ionic: rx_push mode operation (writing descriptors via MMIO)
- bnxt: use the auxiliary bus abstraction for RDMA
- r8169: disable ASPM and reset bus in case of tx timeout
- cpsw: support QSGMII mode for J721e CPSW9G
- cpts: support pulse-per-second output
- ngbe: add an mdio bus driver
- usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
- r8152: handle devices with FW with NCM support
- amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
- virtio-net: support multi buffer XDP
- virtio/vsock: replace virtio_vsock_pkt with sk_buff
- tsnep: XDP support
- Ethernet high-speed switches:
- nVidia/Mellanox (mlxsw):
- add support for latency TLV (in FW control messages)
- Microchip (sparx5):
- separate explicit and implicit traffic forwarding rules, make
the implicit rules always active
- add support for egress DSCP rewrite
- IS0 VCAP support (Ingress Classification)
- IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
etc.)
- ES2 VCAP support (Egress Access Control)
- support for Per-Stream Filtering and Policing (802.1Q,
8.6.5.1)
- Ethernet embedded switches:
- Marvell (mv88e6xxx):
- add MAB (port auth) offload support
- enable PTP receive for mv88e6390
- NXP (ocelot):
- support MAC Merge layer
- support for the the vsc7512 internal copper phys
- Microchip:
- lan9303: convert to PHYLINK
- lan966x: support TC flower filter statistics
- lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
- lan937x: support Credit Based Shaper configuration
- ksz9477: support Energy Efficient Ethernet
- other:
- qca8k: convert to regmap read/write API, use bulk operations
- rswitch: Improve TX timestamp accuracy
- Intel WiFi (iwlwifi):
- EHT (Wi-Fi 7) rate reporting
- STEP equalizer support: transfer some STEP (connection to radio
on platforms with integrated wifi) related parameters from the
BIOS to the firmware.
- Qualcomm 802.11ax WiFi (ath11k):
- IPQ5018 support
- Fine Timing Measurement (FTM) responder role support
- channel 177 support
- MediaTek WiFi (mt76):
- per-PHY LED support
- mt7996: EHT (Wi-Fi 7) support
- Wireless Ethernet Dispatch (WED) reset support
- switch to using page pool allocator
- RealTek WiFi (rtw89):
- support new version of Bluetooth co-existance
- Mobile:
- rmnet: support TX aggregation"
* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
page_pool: add a comment explaining the fragment counter usage
net: ethtool: fix __ethtool_dev_mm_supported() implementation
ethtool: pse-pd: Fix double word in comments
xsk: add linux/vmalloc.h to xsk.c
sefltests: netdevsim: wait for devlink instance after netns removal
selftest: fib_tests: Always cleanup before exit
net/mlx5e: Align IPsec ASO result memory to be as required by hardware
net/mlx5e: TC, Set CT miss to the specific ct action instance
net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
net/mlx5: Refactor tc miss handling to a single function
net/mlx5: Kconfig: Make tc offload depend on tc skb extension
net/sched: flower: Support hardware miss to tc action
net/sched: flower: Move filter handle initialization earlier
net/sched: cls_api: Support hardware miss to tc action
net/sched: Rename user cookie and act cookie
sfc: fix builds without CONFIG_RTC_LIB
sfc: clean up some inconsistent indentings
net/mlx4_en: Introduce flexible array to silence overflow warning
net: lan966x: Fix possible deadlock inside PTP
net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
...
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb3/ael1002.c')
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb3/ael1002.c | 936 |
1 files changed, 936 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb3/ael1002.c b/drivers/net/ethernet/chelsio/cxgb3/ael1002.c new file mode 100644 index 000000000..9d591f0dd --- /dev/null +++ b/drivers/net/ethernet/chelsio/cxgb3/ael1002.c @@ -0,0 +1,936 @@ +/* + * Copyright (c) 2005-2008 Chelsio, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include "common.h" +#include "regs.h" + +enum { + AEL100X_TX_CONFIG1 = 0xc002, + AEL1002_PWR_DOWN_HI = 0xc011, + AEL1002_PWR_DOWN_LO = 0xc012, + AEL1002_XFI_EQL = 0xc015, + AEL1002_LB_EN = 0xc017, + AEL_OPT_SETTINGS = 0xc017, + AEL_I2C_CTRL = 0xc30a, + AEL_I2C_DATA = 0xc30b, + AEL_I2C_STAT = 0xc30c, + AEL2005_GPIO_CTRL = 0xc214, + AEL2005_GPIO_STAT = 0xc215, + + AEL2020_GPIO_INTR = 0xc103, /* Latch High (LH) */ + AEL2020_GPIO_CTRL = 0xc108, /* Store Clear (SC) */ + AEL2020_GPIO_STAT = 0xc10c, /* Read Only (RO) */ + AEL2020_GPIO_CFG = 0xc110, /* Read Write (RW) */ + + AEL2020_GPIO_SDA = 0, /* IN: i2c serial data */ + AEL2020_GPIO_MODDET = 1, /* IN: Module Detect */ + AEL2020_GPIO_0 = 3, /* IN: unassigned */ + AEL2020_GPIO_1 = 2, /* OUT: unassigned */ + AEL2020_GPIO_LSTAT = AEL2020_GPIO_1, /* wired to link status LED */ +}; + +enum { edc_none, edc_sr, edc_twinax }; + +/* PHY module I2C device address */ +enum { + MODULE_DEV_ADDR = 0xa0, + SFF_DEV_ADDR = 0xa2, +}; + +/* PHY transceiver type */ +enum { + phy_transtype_unknown = 0, + phy_transtype_sfp = 3, + phy_transtype_xfp = 6, +}; + +#define AEL2005_MODDET_IRQ 4 + +struct reg_val { + unsigned short mmd_addr; + unsigned short reg_addr; + unsigned short clear_bits; + unsigned short set_bits; +}; + +static int set_phy_regs(struct cphy *phy, const struct reg_val *rv) +{ + int err; + + for (err = 0; rv->mmd_addr && !err; rv++) { + if (rv->clear_bits == 0xffff) + err = t3_mdio_write(phy, rv->mmd_addr, rv->reg_addr, + rv->set_bits); + else + err = t3_mdio_change_bits(phy, rv->mmd_addr, + rv->reg_addr, rv->clear_bits, + rv->set_bits); + } + return err; +} + +static void ael100x_txon(struct cphy *phy) +{ + int tx_on_gpio = + phy->mdio.prtad == 0 ? F_GPIO7_OUT_VAL : F_GPIO2_OUT_VAL; + + msleep(100); + t3_set_reg_field(phy->adapter, A_T3DBG_GPIO_EN, 0, tx_on_gpio); + msleep(30); +} + +/* + * Read an 8-bit word from a device attached to the PHY's i2c bus. + */ +static int ael_i2c_rd(struct cphy *phy, int dev_addr, int word_addr) +{ + int i, err; + unsigned int stat, data; + + err = t3_mdio_write(phy, MDIO_MMD_PMAPMD, AEL_I2C_CTRL, + (dev_addr << 8) | (1 << 8) | word_addr); + if (err) + return err; + + for (i = 0; i < 200; i++) { + msleep(1); + err = t3_mdio_read(phy, MDIO_MMD_PMAPMD, AEL_I2C_STAT, &stat); + if (err) + return err; + if ((stat & 3) == 1) { + err = t3_mdio_read(phy, MDIO_MMD_PMAPMD, AEL_I2C_DATA, + &data); + if (err) + return err; + return data >> 8; + } + } + CH_WARN(phy->adapter, "PHY %u i2c read of dev.addr %#x.%#x timed out\n", + phy->mdio.prtad, dev_addr, word_addr); + return -ETIMEDOUT; +} + +static int ael1002_power_down(struct cphy *phy, int enable) +{ + int err; + + err = t3_mdio_write(phy, MDIO_MMD_PMAPMD, MDIO_PMA_TXDIS, !!enable); + if (!err) + err = mdio_set_flag(&phy->mdio, phy->mdio.prtad, + MDIO_MMD_PMAPMD, MDIO_CTRL1, + MDIO_CTRL1_LPOWER, enable); + return err; +} + +static int ael1002_reset(struct cphy *phy, int wait) +{ + int err; + + if ((err = ael1002_power_down(phy, 0)) || + (err = t3_mdio_write(phy, MDIO_MMD_PMAPMD, AEL100X_TX_CONFIG1, 1)) || + (err = t3_mdio_write(phy, MDIO_MMD_PMAPMD, AEL1002_PWR_DOWN_HI, 0)) || + (err = t3_mdio_write(phy, MDIO_MMD_PMAPMD, AEL1002_PWR_DOWN_LO, 0)) || + (err = t3_mdio_write(phy, MDIO_MMD_PMAPMD, AEL1002_XFI_EQL, 0x18)) || + (err = t3_mdio_change_bits(phy, MDIO_MMD_PMAPMD, AEL1002_LB_EN, + 0, 1 << 5))) + return err; + return 0; +} + +static int ael1002_intr_noop(struct cphy *phy) +{ + return 0; +} + +/* + * Get link status for a 10GBASE-R device. + */ +static int get_link_status_r(struct cphy *phy, int *link_ok, int *speed, + int *duplex, int *fc) +{ + if (link_ok) { + unsigned int stat0, stat1, stat2; + int err = t3_mdio_read(phy, MDIO_MMD_PMAPMD, + MDIO_PMA_RXDET, &stat0); + + if (!err) + err = t3_mdio_read(phy, MDIO_MMD_PCS, + MDIO_PCS_10GBRT_STAT1, &stat1); + if (!err) + err = t3_mdio_read(phy, MDIO_MMD_PHYXS, + MDIO_PHYXS_LNSTAT, &stat2); + if (err) + return err; + *link_ok = (stat0 & stat1 & (stat2 >> 12)) & 1; + } + if (speed) + *speed = SPEED_10000; + if (duplex) + *duplex = DUPLEX_FULL; + return 0; +} + +static const struct cphy_ops ael1002_ops = { + .reset = ael1002_reset, + .intr_enable = ael1002_intr_noop, + .intr_disable = ael1002_intr_noop, + .intr_clear = ael1002_intr_noop, + .intr_handler = ael1002_intr_noop, + .get_link_status = get_link_status_r, + .power_down = ael1002_power_down, + .mmds = MDIO_DEVS_PMAPMD | MDIO_DEVS_PCS | MDIO_DEVS_PHYXS, +}; + +int t3_ael1002_phy_prep(struct cphy *phy, struct adapter *adapter, + int phy_addr, const struct mdio_ops *mdio_ops) +{ + cphy_init(phy, adapter, phy_addr, &ael1002_ops, mdio_ops, + SUPPORTED_10000baseT_Full | SUPPORTED_AUI | SUPPORTED_FIBRE, + "10GBASE-R"); + ael100x_txon(phy); + return 0; +} + +static int ael1006_reset(struct cphy *phy, int wait) +{ + return t3_phy_reset(phy, MDIO_MMD_PMAPMD, wait); +} + +static const struct cphy_ops ael1006_ops = { + .reset = ael1006_reset, + .intr_enable = t3_phy_lasi_intr_enable, + .intr_disable = t3_phy_lasi_intr_disable, + .intr_clear = t3_phy_lasi_intr_clear, + .intr_handler = t3_phy_lasi_intr_handler, + .get_link_status = get_link_status_r, + .power_down = ael1002_power_down, + .mmds = MDIO_DEVS_PMAPMD | MDIO_DEVS_PCS | MDIO_DEVS_PHYXS, +}; + +int t3_ael1006_phy_prep(struct cphy *phy, struct adapter *adapter, + int phy_addr, const struct mdio_ops *mdio_ops) +{ + cphy_init(phy, adapter, phy_addr, &ael1006_ops, mdio_ops, + SUPPORTED_10000baseT_Full | SUPPORTED_AUI | SUPPORTED_FIBRE, + "10GBASE-SR"); + ael100x_txon(phy); + return 0; +} + +/* + * Decode our module type. + */ +static int ael2xxx_get_module_type(struct cphy *phy, int delay_ms) +{ + int v; + + if (delay_ms) + msleep(delay_ms); + + /* see SFF-8472 for below */ + v = ael_i2c_rd(phy, MODULE_DEV_ADDR, 3); + if (v < 0) + return v; + + if (v == 0x10) + return phy_modtype_sr; + if (v == 0x20) + return phy_modtype_lr; + if (v == 0x40) + return phy_modtype_lrm; + + v = ael_i2c_rd(phy, MODULE_DEV_ADDR, 6); + if (v < 0) + return v; + if (v != 4) + goto unknown; + + v = ael_i2c_rd(phy, MODULE_DEV_ADDR, 10); + if (v < 0) + return v; + + if (v & 0x80) { + v = ael_i2c_rd(phy, MODULE_DEV_ADDR, 0x12); + if (v < 0) + return v; + return v > 10 ? phy_modtype_twinax_long : phy_modtype_twinax; + } +unknown: + return phy_modtype_unknown; +} + +/* + * Code to support the Aeluros/NetLogic 2005 10Gb PHY. + */ +static int ael2005_setup_sr_edc(struct cphy *phy) +{ + static const struct reg_val regs[] = { + { MDIO_MMD_PMAPMD, 0xc003, 0xffff, 0x181 }, + { MDIO_MMD_PMAPMD, 0xc010, 0xffff, 0x448a }, + { MDIO_MMD_PMAPMD, 0xc04a, 0xffff, 0x5200 }, + { 0, 0, 0, 0 } + }; + + int i, err; + + err = set_phy_regs(phy, regs); + if (err) + return err; + + msleep(50); + + if (phy->priv != edc_sr) + err = t3_get_edc_fw(phy, EDC_OPT_AEL2005, + EDC_OPT_AEL2005_SIZE); + if (err) + return err; + + for (i = 0; i < EDC_OPT_AEL2005_SIZE / sizeof(u16) && !err; i += 2) + err = t3_mdio_write(phy, MDIO_MMD_PMAPMD, + phy->phy_cache[i], + phy->phy_cache[i + 1]); + if (!err) + phy->priv = edc_sr; + return err; +} + +static int ael2005_setup_twinax_edc(struct cphy *phy, int modtype) +{ + static const struct reg_val regs[] = { + { MDIO_MMD_PMAPMD, 0xc04a, 0xffff, 0x5a00 }, + { 0, 0, 0, 0 } + }; + static const struct reg_val preemphasis[] = { + { MDIO_MMD_PMAPMD, 0xc014, 0xffff, 0xfe16 }, + { MDIO_MMD_PMAPMD, 0xc015, 0xffff, 0xa000 }, + { 0, 0, 0, 0 } + }; + int i, err; + + err = set_phy_regs(phy, regs); + if (!err && modtype == phy_modtype_twinax_long) + err = set_phy_regs(phy, preemphasis); + if (err) + return err; + + msleep(50); + + if (phy->priv != edc_twinax) + err = t3_get_edc_fw(phy, EDC_TWX_AEL2005, + EDC_TWX_AEL2005_SIZE); + if (err) + return err; + + for (i = 0; i < EDC_TWX_AEL2005_SIZE / sizeof(u16) && !err; i += 2) + err = t3_mdio_write(phy, MDIO_MMD_PMAPMD, + phy->phy_cache[i], + phy->phy_cache[i + 1]); + if (!err) + phy->priv = edc_twinax; + return err; +} + +static int ael2005_get_module_type(struct cphy *phy, int delay_ms) +{ + int v; + unsigned int stat; + + v = t3_mdio_read(phy, MDIO_MMD_PMAPMD, AEL2005_GPIO_CTRL, &stat); + if (v) + return v; + + if (stat & (1 << 8)) /* module absent */ + return phy_modtype_none; + + return ael2xxx_get_module_type(phy, delay_ms); +} + +static int ael2005_intr_enable(struct cphy *phy) +{ + int err = t3_mdio_write(phy, MDIO_MMD_PMAPMD, AEL2005_GPIO_CTRL, 0x200); + return err ? err : t3_phy_lasi_intr_enable(phy); +} + +static int ael2005_intr_disable(struct cphy *phy) +{ + int err = t3_mdio_write(phy, MDIO_MMD_PMAPMD, AEL2005_GPIO_CTRL, 0x100); + return err ? err : t3_phy_lasi_intr_disable(phy); +} + +static int ael2005_intr_clear(struct cphy *phy) +{ + int err = t3_mdio_write(phy, MDIO_MMD_PMAPMD, AEL2005_GPIO_CTRL, 0xd00); + return err ? err : t3_phy_lasi_intr_clear(phy); +} + +static int ael2005_reset(struct cphy *phy, int wait) +{ + static const struct reg_val regs0[] = { + { MDIO_MMD_PMAPMD, 0xc001, 0, 1 << 5 }, + { MDIO_MMD_PMAPMD, 0xc017, 0, 1 << 5 }, + { MDIO_MMD_PMAPMD, 0xc013, 0xffff, 0xf341 }, + { MDIO_MMD_PMAPMD, 0xc210, 0xffff, 0x8000 }, + { MDIO_MMD_PMAPMD, 0xc210, 0xffff, 0x8100 }, + { MDIO_MMD_PMAPMD, 0xc210, 0xffff, 0x8000 }, + { MDIO_MMD_PMAPMD, 0xc210, 0xffff, 0 }, + { 0, 0, 0, 0 } + }; + static const struct reg_val regs1[] = { + { MDIO_MMD_PMAPMD, 0xca00, 0xffff, 0x0080 }, + { MDIO_MMD_PMAPMD, 0xca12, 0xffff, 0 }, + { 0, 0, 0, 0 } + }; + + int err; + unsigned int lasi_ctrl; + + err = t3_mdio_read(phy, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_CTRL, + &lasi_ctrl); + if (err) + return err; + + err = t3_phy_reset(phy, MDIO_MMD_PMAPMD, 0); + if (err) + return err; + + msleep(125); + phy->priv = edc_none; + err = set_phy_regs(phy, regs0); + if (err) + return err; + + msleep(50); + + err = ael2005_get_module_type(phy, 0); + if (err < 0) + return err; + phy->modtype = err; + + if (err == phy_modtype_twinax || err == phy_modtype_twinax_long) + err = ael2005_setup_twinax_edc(phy, err); + else + err = ael2005_setup_sr_edc(phy); + if (err) + return err; + + err = set_phy_regs(phy, regs1); + if (err) + return err; + + /* reset wipes out interrupts, reenable them if they were on */ + if (lasi_ctrl & 1) + err = ael2005_intr_enable(phy); + return err; +} + +static int ael2005_intr_handler(struct cphy *phy) +{ + unsigned int stat; + int ret, edc_needed, cause = 0; + + ret = t3_mdio_read(phy, MDIO_MMD_PMAPMD, AEL2005_GPIO_STAT, &stat); + if (ret) + return ret; + + if (stat & AEL2005_MODDET_IRQ) { + ret = t3_mdio_write(phy, MDIO_MMD_PMAPMD, AEL2005_GPIO_CTRL, + 0xd00); + if (ret) + return ret; + + /* modules have max 300 ms init time after hot plug */ + ret = ael2005_get_module_type(phy, 300); + if (ret < 0) + return ret; + + phy->modtype = ret; + if (ret == phy_modtype_none) + edc_needed = phy->priv; /* on unplug retain EDC */ + else if (ret == phy_modtype_twinax || + ret == phy_modtype_twinax_long) + edc_needed = edc_twinax; + else + edc_needed = edc_sr; + + if (edc_needed != phy->priv) { + ret = ael2005_reset(phy, 0); + return ret ? ret : cphy_cause_module_change; + } + cause = cphy_cause_module_change; + } + + ret = t3_phy_lasi_intr_handler(phy); + if (ret < 0) + return ret; + + ret |= cause; + return ret ? ret : cphy_cause_link_change; +} + +static const struct cphy_ops ael2005_ops = { + .reset = ael2005_reset, + .intr_enable = ael2005_intr_enable, + .intr_disable = ael2005_intr_disable, + .intr_clear = ael2005_intr_clear, + .intr_handler = ael2005_intr_handler, + .get_link_status = get_link_status_r, + .power_down = ael1002_power_down, + .mmds = MDIO_DEVS_PMAPMD | MDIO_DEVS_PCS | MDIO_DEVS_PHYXS, +}; + +int t3_ael2005_phy_prep(struct cphy *phy, struct adapter *adapter, + int phy_addr, const struct mdio_ops *mdio_ops) +{ + cphy_init(phy, adapter, phy_addr, &ael2005_ops, mdio_ops, + SUPPORTED_10000baseT_Full | SUPPORTED_AUI | SUPPORTED_FIBRE | + SUPPORTED_IRQ, "10GBASE-R"); + msleep(125); + return t3_mdio_change_bits(phy, MDIO_MMD_PMAPMD, AEL_OPT_SETTINGS, 0, + 1 << 5); +} + +/* + * Setup EDC and other parameters for operation with an optical module. + */ +static int ael2020_setup_sr_edc(struct cphy *phy) +{ + static const struct reg_val regs[] = { + /* set CDR offset to 10 */ + { MDIO_MMD_PMAPMD, 0xcc01, 0xffff, 0x488a }, + + /* adjust 10G RX bias current */ + { MDIO_MMD_PMAPMD, 0xcb1b, 0xffff, 0x0200 }, + { MDIO_MMD_PMAPMD, 0xcb1c, 0xffff, 0x00f0 }, + { MDIO_MMD_PMAPMD, 0xcc06, 0xffff, 0x00e0 }, + + /* end */ + { 0, 0, 0, 0 } + }; + int err; + + err = set_phy_regs(phy, regs); + msleep(50); + if (err) + return err; + + phy->priv = edc_sr; + return 0; +} + +/* + * Setup EDC and other parameters for operation with an TWINAX module. + */ +static int ael2020_setup_twinax_edc(struct cphy *phy, int modtype) +{ + /* set uC to 40MHz */ + static const struct reg_val uCclock40MHz[] = { + { MDIO_MMD_PMAPMD, 0xff28, 0xffff, 0x4001 }, + { MDIO_MMD_PMAPMD, 0xff2a, 0xffff, 0x0002 }, + { 0, 0, 0, 0 } + }; + + /* activate uC clock */ + static const struct reg_val uCclockActivate[] = { + { MDIO_MMD_PMAPMD, 0xd000, 0xffff, 0x5200 }, + { 0, 0, 0, 0 } + }; + + /* set PC to start of SRAM and activate uC */ + static const struct reg_val uCactivate[] = { + { MDIO_MMD_PMAPMD, 0xd080, 0xffff, 0x0100 }, + { MDIO_MMD_PMAPMD, 0xd092, 0xffff, 0x0000 }, + { 0, 0, 0, 0 } + }; + int i, err; + + /* set uC clock and activate it */ + err = set_phy_regs(phy, uCclock40MHz); + msleep(500); + if (err) + return err; + err = set_phy_regs(phy, uCclockActivate); + msleep(500); + if (err) + return err; + + if (phy->priv != edc_twinax) + err = t3_get_edc_fw(phy, EDC_TWX_AEL2020, + EDC_TWX_AEL2020_SIZE); + if (err) + return err; + + for (i = 0; i < EDC_TWX_AEL2020_SIZE / sizeof(u16) && !err; i += 2) + err = t3_mdio_write(phy, MDIO_MMD_PMAPMD, + phy->phy_cache[i], + phy->phy_cache[i + 1]); + /* activate uC */ + err = set_phy_regs(phy, uCactivate); + if (!err) + phy->priv = edc_twinax; + return err; +} + +/* + * Return Module Type. + */ +static int ael2020_get_module_type(struct cphy *phy, int delay_ms) +{ + int v; + unsigned int stat; + + v = t3_mdio_read(phy, MDIO_MMD_PMAPMD, AEL2020_GPIO_STAT, &stat); + if (v) + return v; + + if (stat & (0x1 << (AEL2020_GPIO_MODDET*4))) { + /* module absent */ + return phy_modtype_none; + } + + return ael2xxx_get_module_type(phy, delay_ms); +} + +/* + * Enable PHY interrupts. We enable "Module Detection" interrupts (on any + * state transition) and then generic Link Alarm Status Interrupt (LASI). + */ +static int ael2020_intr_enable(struct cphy *phy) +{ + static const struct reg_val regs[] = { + /* output Module's Loss Of Signal (LOS) to LED */ + { MDIO_MMD_PMAPMD, AEL2020_GPIO_CFG+AEL2020_GPIO_LSTAT, + 0xffff, 0x4 }, + { MDIO_MMD_PMAPMD, AEL2020_GPIO_CTRL, + 0xffff, 0x8 << (AEL2020_GPIO_LSTAT*4) }, + + /* enable module detect status change interrupts */ + { MDIO_MMD_PMAPMD, AEL2020_GPIO_CTRL, + 0xffff, 0x2 << (AEL2020_GPIO_MODDET*4) }, + + /* end */ + { 0, 0, 0, 0 } + }; + int err, link_ok = 0; + + /* set up "link status" LED and enable module change interrupts */ + err = set_phy_regs(phy, regs); + if (err) + return err; + + err = get_link_status_r(phy, &link_ok, NULL, NULL, NULL); + if (err) + return err; + if (link_ok) + t3_link_changed(phy->adapter, + phy2portid(phy)); + + err = t3_phy_lasi_intr_enable(phy); + if (err) + return err; + + return 0; +} + +/* + * Disable PHY interrupts. The mirror of the above ... + */ +static int ael2020_intr_disable(struct cphy *phy) +{ + static const struct reg_val regs[] = { + /* reset "link status" LED to "off" */ + { MDIO_MMD_PMAPMD, AEL2020_GPIO_CTRL, + 0xffff, 0xb << (AEL2020_GPIO_LSTAT*4) }, + + /* disable module detect status change interrupts */ + { MDIO_MMD_PMAPMD, AEL2020_GPIO_CTRL, + 0xffff, 0x1 << (AEL2020_GPIO_MODDET*4) }, + + /* end */ + { 0, 0, 0, 0 } + }; + int err; + + /* turn off "link status" LED and disable module change interrupts */ + err = set_phy_regs(phy, regs); + if (err) + return err; + + return t3_phy_lasi_intr_disable(phy); +} + +/* + * Clear PHY interrupt state. + */ +static int ael2020_intr_clear(struct cphy *phy) +{ + /* + * The GPIO Interrupt register on the AEL2020 is a "Latching High" + * (LH) register which is cleared to the current state when it's read. + * Thus, we simply read the register and discard the result. + */ + unsigned int stat; + int err = t3_mdio_read(phy, MDIO_MMD_PMAPMD, AEL2020_GPIO_INTR, &stat); + return err ? err : t3_phy_lasi_intr_clear(phy); +} + +static const struct reg_val ael2020_reset_regs[] = { + /* Erratum #2: CDRLOL asserted, causing PMA link down status */ + { MDIO_MMD_PMAPMD, 0xc003, 0xffff, 0x3101 }, + + /* force XAUI to send LF when RX_LOS is asserted */ + { MDIO_MMD_PMAPMD, 0xcd40, 0xffff, 0x0001 }, + + /* allow writes to transceiver module EEPROM on i2c bus */ + { MDIO_MMD_PMAPMD, 0xff02, 0xffff, 0x0023 }, + { MDIO_MMD_PMAPMD, 0xff03, 0xffff, 0x0000 }, + { MDIO_MMD_PMAPMD, 0xff04, 0xffff, 0x0000 }, + + /* end */ + { 0, 0, 0, 0 } +}; +/* + * Reset the PHY and put it into a canonical operating state. + */ +static int ael2020_reset(struct cphy *phy, int wait) +{ + int err; + unsigned int lasi_ctrl; + + /* grab current interrupt state */ + err = t3_mdio_read(phy, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_CTRL, + &lasi_ctrl); + if (err) + return err; + + err = t3_phy_reset(phy, MDIO_MMD_PMAPMD, 125); + if (err) + return err; + msleep(100); + + /* basic initialization for all module types */ + phy->priv = edc_none; + err = set_phy_regs(phy, ael2020_reset_regs); + if (err) + return err; + + /* determine module type and perform appropriate initialization */ + err = ael2020_get_module_type(phy, 0); + if (err < 0) + return err; + phy->modtype = (u8)err; + if (err == phy_modtype_twinax || err == phy_modtype_twinax_long) + err = ael2020_setup_twinax_edc(phy, err); + else + err = ael2020_setup_sr_edc(phy); + if (err) + return err; + + /* reset wipes out interrupts, reenable them if they were on */ + if (lasi_ctrl & 1) + err = ael2005_intr_enable(phy); + return err; +} + +/* + * Handle a PHY interrupt. + */ +static int ael2020_intr_handler(struct cphy *phy) +{ + unsigned int stat; + int ret, edc_needed, cause = 0; + + ret = t3_mdio_read(phy, MDIO_MMD_PMAPMD, AEL2020_GPIO_INTR, &stat); + if (ret) + return ret; + + if (stat & (0x1 << AEL2020_GPIO_MODDET)) { + /* modules have max 300 ms init time after hot plug */ + ret = ael2020_get_module_type(phy, 300); + if (ret < 0) + return ret; + + phy->modtype = (u8)ret; + if (ret == phy_modtype_none) + edc_needed = phy->priv; /* on unplug retain EDC */ + else if (ret == phy_modtype_twinax || + ret == phy_modtype_twinax_long) + edc_needed = edc_twinax; + else + edc_needed = edc_sr; + + if (edc_needed != phy->priv) { + ret = ael2020_reset(phy, 0); + return ret ? ret : cphy_cause_module_change; + } + cause = cphy_cause_module_change; + } + + ret = t3_phy_lasi_intr_handler(phy); + if (ret < 0) + return ret; + + ret |= cause; + return ret ? ret : cphy_cause_link_change; +} + +static const struct cphy_ops ael2020_ops = { + .reset = ael2020_reset, + .intr_enable = ael2020_intr_enable, + .intr_disable = ael2020_intr_disable, + .intr_clear = ael2020_intr_clear, + .intr_handler = ael2020_intr_handler, + .get_link_status = get_link_status_r, + .power_down = ael1002_power_down, + .mmds = MDIO_DEVS_PMAPMD | MDIO_DEVS_PCS | MDIO_DEVS_PHYXS, +}; + +int t3_ael2020_phy_prep(struct cphy *phy, struct adapter *adapter, int phy_addr, + const struct mdio_ops *mdio_ops) +{ + cphy_init(phy, adapter, phy_addr, &ael2020_ops, mdio_ops, + SUPPORTED_10000baseT_Full | SUPPORTED_AUI | SUPPORTED_FIBRE | + SUPPORTED_IRQ, "10GBASE-R"); + msleep(125); + + return set_phy_regs(phy, ael2020_reset_regs); +} + +/* + * Get link status for a 10GBASE-X device. + */ +static int get_link_status_x(struct cphy *phy, int *link_ok, int *speed, + int *duplex, int *fc) +{ + if (link_ok) { + unsigned int stat0, stat1, stat2; + int err = t3_mdio_read(phy, MDIO_MMD_PMAPMD, + MDIO_PMA_RXDET, &stat0); + + if (!err) + err = t3_mdio_read(phy, MDIO_MMD_PCS, + MDIO_PCS_10GBX_STAT1, &stat1); + if (!err) + err = t3_mdio_read(phy, MDIO_MMD_PHYXS, + MDIO_PHYXS_LNSTAT, &stat2); + if (err) + return err; + *link_ok = (stat0 & (stat1 >> 12) & (stat2 >> 12)) & 1; + } + if (speed) + *speed = SPEED_10000; + if (duplex) + *duplex = DUPLEX_FULL; + return 0; +} + +static const struct cphy_ops qt2045_ops = { + .reset = ael1006_reset, + .intr_enable = t3_phy_lasi_intr_enable, + .intr_disable = t3_phy_lasi_intr_disable, + .intr_clear = t3_phy_lasi_intr_clear, + .intr_handler = t3_phy_lasi_intr_handler, + .get_link_status = get_link_status_x, + .power_down = ael1002_power_down, + .mmds = MDIO_DEVS_PMAPMD | MDIO_DEVS_PCS | MDIO_DEVS_PHYXS, +}; + +int t3_qt2045_phy_prep(struct cphy *phy, struct adapter *adapter, + int phy_addr, const struct mdio_ops *mdio_ops) +{ + unsigned int stat; + + cphy_init(phy, adapter, phy_addr, &qt2045_ops, mdio_ops, + SUPPORTED_10000baseT_Full | SUPPORTED_AUI | SUPPORTED_TP, + "10GBASE-CX4"); + + /* + * Some cards where the PHY is supposed to be at address 0 actually + * have it at 1. + */ + if (!phy_addr && + !t3_mdio_read(phy, MDIO_MMD_PMAPMD, MDIO_STAT1, &stat) && + stat == 0xffff) + phy->mdio.prtad = 1; + return 0; +} + +static int xaui_direct_reset(struct cphy *phy, int wait) +{ + return 0; +} + +static int xaui_direct_get_link_status(struct cphy *phy, int *link_ok, + int *speed, int *duplex, int *fc) +{ + if (link_ok) { + unsigned int status; + int prtad = phy->mdio.prtad; + + status = t3_read_reg(phy->adapter, + XGM_REG(A_XGM_SERDES_STAT0, prtad)) | + t3_read_reg(phy->adapter, + XGM_REG(A_XGM_SERDES_STAT1, prtad)) | + t3_read_reg(phy->adapter, + XGM_REG(A_XGM_SERDES_STAT2, prtad)) | + t3_read_reg(phy->adapter, + XGM_REG(A_XGM_SERDES_STAT3, prtad)); + *link_ok = !(status & F_LOWSIG0); + } + if (speed) + *speed = SPEED_10000; + if (duplex) + *duplex = DUPLEX_FULL; + return 0; +} + +static int xaui_direct_power_down(struct cphy *phy, int enable) +{ + return 0; +} + +static const struct cphy_ops xaui_direct_ops = { + .reset = xaui_direct_reset, + .intr_enable = ael1002_intr_noop, + .intr_disable = ael1002_intr_noop, + .intr_clear = ael1002_intr_noop, + .intr_handler = ael1002_intr_noop, + .get_link_status = xaui_direct_get_link_status, + .power_down = xaui_direct_power_down, +}; + +int t3_xaui_direct_phy_prep(struct cphy *phy, struct adapter *adapter, + int phy_addr, const struct mdio_ops *mdio_ops) +{ + cphy_init(phy, adapter, phy_addr, &xaui_direct_ops, mdio_ops, + SUPPORTED_10000baseT_Full | SUPPORTED_AUI | SUPPORTED_TP, + "10GBASE-CX4"); + return 0; +} |