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linux / linux / kernel / git / will / linux / 72076fc9fe60b9143cd971fd8737718719bc512e / . / drivers / net / ethernet / broadcom / tg3.c
blob: 62ff4381ac83cfd6a27a3763603f6ce8392043c6 [file] [log] [blame]
/*
* tg3.c: Broadcom Tigon3 ethernet driver.
*
* Copyright (C) 2001, 2002, 2003, 2004 David S. Miller (davem@redhat.com)
* Copyright (C) 2001, 2002, 2003 Jeff Garzik (jgarzik@pobox.com)
* Copyright (C) 2004 Sun Microsystems Inc.
* Copyright (C) 2005-2016 Broadcom Corporation.
* Copyright (C) 2016-2017 Broadcom Limited.
* Copyright (C) 2018 Broadcom. All Rights Reserved. The term "Broadcom"
* refers to Broadcom Inc. and/or its subsidiaries.
*
* Firmware is:
* Derived from proprietary unpublished source code,
* Copyright (C) 2000-2016 Broadcom Corporation.
* Copyright (C) 2016-2017 Broadcom Ltd.
* Copyright (C) 2018 Broadcom. All Rights Reserved. The term "Broadcom"
* refers to Broadcom Inc. and/or its subsidiaries.
*
* Permission is hereby granted for the distribution of this firmware
* data in hexadecimal or equivalent format, provided this copyright
* notice is accompanying it.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/stringify.h>
#include <linux/kernel.h>
#include <linux/sched/signal.h>
#include <linux/types.h>
#include <linux/compiler.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/in.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/ethtool.h>
#include <linux/mdio.h>
#include <linux/mii.h>
#include <linux/phy.h>
#include <linux/brcmphy.h>
#include <linux/if.h>
#include <linux/if_vlan.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/workqueue.h>
#include <linux/prefetch.h>
#include <linux/dma-mapping.h>
#include <linux/firmware.h>
#include <linux/ssb/ssb_driver_gige.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/crc32poly.h>
#include <net/checksum.h>
#include <net/gso.h>
#include <net/ip.h>
#include <linux/io.h>
#include <asm/byteorder.h>
#include <linux/uaccess.h>
#include <uapi/linux/net_tstamp.h>
#include <linux/ptp_clock_kernel.h>
#define BAR_0 0
#define BAR_2 2
#include "tg3.h"
/* Functions & macros to verify TG3_FLAGS types */
static inline int _tg3_flag(enum TG3_FLAGS flag, unsigned long *bits)
{
return test_bit(flag, bits);
}
static inline void _tg3_flag_set(enum TG3_FLAGS flag, unsigned long *bits)
{
set_bit(flag, bits);
}
static inline void _tg3_flag_clear(enum TG3_FLAGS flag, unsigned long *bits)
{
clear_bit(flag, bits);
}
#define tg3_flag(tp, flag) \
_tg3_flag(TG3_FLAG_##flag, (tp)->tg3_flags)
#define tg3_flag_set(tp, flag) \
_tg3_flag_set(TG3_FLAG_##flag, (tp)->tg3_flags)
#define tg3_flag_clear(tp, flag) \
_tg3_flag_clear(TG3_FLAG_##flag, (tp)->tg3_flags)
#define DRV_MODULE_NAME "tg3"
/* DO NOT UPDATE TG3_*_NUM defines */
#define TG3_MAJ_NUM 3
#define TG3_MIN_NUM 137
#define RESET_KIND_SHUTDOWN 0
#define RESET_KIND_INIT 1
#define RESET_KIND_SUSPEND 2
#define TG3_DEF_RX_MODE 0
#define TG3_DEF_TX_MODE 0
#define TG3_DEF_MSG_ENABLE \
(NETIF_MSG_DRV | \
NETIF_MSG_PROBE | \
NETIF_MSG_LINK | \
NETIF_MSG_TIMER | \
NETIF_MSG_IFDOWN | \
NETIF_MSG_IFUP | \
NETIF_MSG_RX_ERR | \
NETIF_MSG_TX_ERR)
#define TG3_GRC_LCLCTL_PWRSW_DELAY 100
/* length of time before we decide the hardware is borked,
* and dev->tx_timeout() should be called to fix the problem
*/
#define TG3_TX_TIMEOUT (5 * HZ)
/* hardware minimum and maximum for a single frame's data payload */
#define TG3_MIN_MTU ETH_ZLEN
#define TG3_MAX_MTU(tp) \
(tg3_flag(tp, JUMBO_CAPABLE) ? 9000 : 1500)
/* These numbers seem to be hard coded in the NIC firmware somehow.
* You can't change the ring sizes, but you can change where you place
* them in the NIC onboard memory.
*/
#define TG3_RX_STD_RING_SIZE(tp) \
(tg3_flag(tp, LRG_PROD_RING_CAP) ? \
TG3_RX_STD_MAX_SIZE_5717 : TG3_RX_STD_MAX_SIZE_5700)
#define TG3_DEF_RX_RING_PENDING 200
#define TG3_RX_JMB_RING_SIZE(tp) \
(tg3_flag(tp, LRG_PROD_RING_CAP) ? \
TG3_RX_JMB_MAX_SIZE_5717 : TG3_RX_JMB_MAX_SIZE_5700)
#define TG3_DEF_RX_JUMBO_RING_PENDING 100
/* Do not place this n-ring entries value into the tp struct itself,
* we really want to expose these constants to GCC so that modulo et
* al. operations are done with shifts and masks instead of with
* hw multiply/modulo instructions. Another solution would be to
* replace things like '% foo' with '& (foo - 1)'.
*/
#define TG3_TX_RING_SIZE 512
#define TG3_DEF_TX_RING_PENDING (TG3_TX_RING_SIZE - 1)
#define TG3_RX_STD_RING_BYTES(tp) \
(sizeof(struct tg3_rx_buffer_desc) * TG3_RX_STD_RING_SIZE(tp))
#define TG3_RX_JMB_RING_BYTES(tp) \
(sizeof(struct tg3_ext_rx_buffer_desc) * TG3_RX_JMB_RING_SIZE(tp))
#define TG3_RX_RCB_RING_BYTES(tp) \
(sizeof(struct tg3_rx_buffer_desc) * (tp->rx_ret_ring_mask + 1))
#define TG3_TX_RING_BYTES (sizeof(struct tg3_tx_buffer_desc) * \
TG3_TX_RING_SIZE)
#define NEXT_TX(N) (((N) + 1) & (TG3_TX_RING_SIZE - 1))
#define TG3_DMA_BYTE_ENAB 64
#define TG3_RX_STD_DMA_SZ 1536
#define TG3_RX_JMB_DMA_SZ 9046
#define TG3_RX_DMA_TO_MAP_SZ(x) ((x) + TG3_DMA_BYTE_ENAB)
#define TG3_RX_STD_MAP_SZ TG3_RX_DMA_TO_MAP_SZ(TG3_RX_STD_DMA_SZ)
#define TG3_RX_JMB_MAP_SZ TG3_RX_DMA_TO_MAP_SZ(TG3_RX_JMB_DMA_SZ)
#define TG3_RX_STD_BUFF_RING_SIZE(tp) \
(sizeof(struct ring_info) * TG3_RX_STD_RING_SIZE(tp))
#define TG3_RX_JMB_BUFF_RING_SIZE(tp) \
(sizeof(struct ring_info) * TG3_RX_JMB_RING_SIZE(tp))
/* Due to a hardware bug, the 5701 can only DMA to memory addresses
* that are at least dword aligned when used in PCIX mode. The driver
* works around this bug by double copying the packet. This workaround
* is built into the normal double copy length check for efficiency.
*
* However, the double copy is only necessary on those architectures
* where unaligned memory accesses are inefficient. For those architectures
* where unaligned memory accesses incur little penalty, we can reintegrate
* the 5701 in the normal rx path. Doing so saves a device structure
* dereference by hardcoding the double copy threshold in place.
*/
#define TG3_RX_COPY_THRESHOLD 256
#if NET_IP_ALIGN == 0 || defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
#define TG3_RX_COPY_THRESH(tp) TG3_RX_COPY_THRESHOLD
#else
#define TG3_RX_COPY_THRESH(tp) ((tp)->rx_copy_thresh)
#endif
#if (NET_IP_ALIGN != 0)
#define TG3_RX_OFFSET(tp) ((tp)->rx_offset)
#else
#define TG3_RX_OFFSET(tp) (NET_SKB_PAD)
#endif
/* minimum number of free TX descriptors required to wake up TX process */
#define TG3_TX_WAKEUP_THRESH(tnapi) ((tnapi)->tx_pending / 4)
#define TG3_TX_BD_DMA_MAX_2K 2048
#define TG3_TX_BD_DMA_MAX_4K 4096
#define TG3_RAW_IP_ALIGN 2
#define TG3_MAX_UCAST_ADDR(tp) (tg3_flag((tp), ENABLE_ASF) ? 2 : 3)
#define TG3_UCAST_ADDR_IDX(tp) (tg3_flag((tp), ENABLE_ASF) ? 2 : 1)
#define TG3_FW_UPDATE_TIMEOUT_SEC 5
#define TG3_FW_UPDATE_FREQ_SEC (TG3_FW_UPDATE_TIMEOUT_SEC / 2)
#define FIRMWARE_TG3 "tigon/tg3.bin"
#define FIRMWARE_TG357766 "tigon/tg357766.bin"
#define FIRMWARE_TG3TSO "tigon/tg3_tso.bin"
#define FIRMWARE_TG3TSO5 "tigon/tg3_tso5.bin"
MODULE_AUTHOR("David S. Miller <davem@redhat.com> and Jeff Garzik <jgarzik@pobox.com>");
MODULE_DESCRIPTION("Broadcom Tigon3 ethernet driver");
MODULE_LICENSE("GPL");
MODULE_FIRMWARE(FIRMWARE_TG3);
MODULE_FIRMWARE(FIRMWARE_TG357766);
MODULE_FIRMWARE(FIRMWARE_TG3TSO);
MODULE_FIRMWARE(FIRMWARE_TG3TSO5);
static int tg3_debug = -1; /* -1 == use TG3_DEF_MSG_ENABLE as value */
module_param(tg3_debug, int, 0);
MODULE_PARM_DESC(tg3_debug, "Tigon3 bitmapped debugging message enable value");
#define TG3_DRV_DATA_FLAG_10_100_ONLY 0x0001
#define TG3_DRV_DATA_FLAG_5705_10_100 0x0002
static const struct pci_device_id tg3_pci_tbl[] = {
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5700)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5701)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702FE)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705_2)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705M)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705M_2)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702X)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703X)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704S)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702A3)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703A3)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5782)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5788)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5789)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5901),
.driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY |
TG3_DRV_DATA_FLAG_5705_10_100},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5901_2),
.driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY |
TG3_DRV_DATA_FLAG_5705_10_100},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704S_2)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705F),
.driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY |
TG3_DRV_DATA_FLAG_5705_10_100},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5721)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5722)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5750)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751M)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751F),
.driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5752)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5752M)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753M)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753F),
.driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5754)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5754M)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5755)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5755M)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5756)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5786)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787)},
{PCI_DEVICE_SUB(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5787M,
PCI_VENDOR_ID_LENOVO,
TG3PCI_SUBDEVICE_ID_LENOVO_5787M),
.driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787M)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787F),
.driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5714)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5714S)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5715)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5715S)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780S)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5781)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5906)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5906M)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5784)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5764)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5723)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5761)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5761E)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5761S)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5761SE)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5785_G)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5785_F)},
{PCI_DEVICE_SUB(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57780,
PCI_VENDOR_ID_AI, TG3PCI_SUBDEVICE_ID_ACER_57780_A),
.driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY},
{PCI_DEVICE_SUB(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57780,
PCI_VENDOR_ID_AI, TG3PCI_SUBDEVICE_ID_ACER_57780_B),
.driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57780)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57760)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57790),
.driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57788)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5717)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5717_C)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5718)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57781)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57785)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57761)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57765)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57791),
.driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57795),
.driver_data = TG3_DRV_DATA_FLAG_10_100_ONLY},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5719)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5720)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57762)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57766)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5762)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5725)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5727)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57764)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57767)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57787)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57782)},
{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57786)},
{PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9DXX)},
{PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9MXX)},
{PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1000)},
{PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1001)},
{PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1003)},
{PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC9100)},
{PCI_DEVICE(PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_TIGON3)},
{PCI_DEVICE(0x10cf, 0x11a2)}, /* Fujitsu 1000base-SX with BCM5703SKHB */
{}
};
MODULE_DEVICE_TABLE(pci, tg3_pci_tbl);
static const struct {
const char string[ETH_GSTRING_LEN];
} ethtool_stats_keys[] = {
{ "rx_octets" },
{ "rx_fragments" },
{ "rx_ucast_packets" },
{ "rx_mcast_packets" },
{ "rx_bcast_packets" },
{ "rx_fcs_errors" },
{ "rx_align_errors" },
{ "rx_xon_pause_rcvd" },
{ "rx_xoff_pause_rcvd" },
{ "rx_mac_ctrl_rcvd" },
{ "rx_xoff_entered" },
{ "rx_frame_too_long_errors" },
{ "rx_jabbers" },
{ "rx_undersize_packets" },
{ "rx_in_length_errors" },
{ "rx_out_length_errors" },
{ "rx_64_or_less_octet_packets" },
{ "rx_65_to_127_octet_packets" },
{ "rx_128_to_255_octet_packets" },
{ "rx_256_to_511_octet_packets" },
{ "rx_512_to_1023_octet_packets" },
{ "rx_1024_to_1522_octet_packets" },
{ "rx_1523_to_2047_octet_packets" },
{ "rx_2048_to_4095_octet_packets" },
{ "rx_4096_to_8191_octet_packets" },
{ "rx_8192_to_9022_octet_packets" },
{ "tx_octets" },
{ "tx_collisions" },
{ "tx_xon_sent" },
{ "tx_xoff_sent" },
{ "tx_flow_control" },
{ "tx_mac_errors" },
{ "tx_single_collisions" },
{ "tx_mult_collisions" },
{ "tx_deferred" },
{ "tx_excessive_collisions" },
{ "tx_late_collisions" },
{ "tx_collide_2times" },
{ "tx_collide_3times" },
{ "tx_collide_4times" },
{ "tx_collide_5times" },
{ "tx_collide_6times" },
{ "tx_collide_7times" },
{ "tx_collide_8times" },
{ "tx_collide_9times" },
{ "tx_collide_10times" },
{ "tx_collide_11times" },
{ "tx_collide_12times" },
{ "tx_collide_13times" },
{ "tx_collide_14times" },
{ "tx_collide_15times" },
{ "tx_ucast_packets" },
{ "tx_mcast_packets" },
{ "tx_bcast_packets" },
{ "tx_carrier_sense_errors" },
{ "tx_discards" },
{ "tx_errors" },
{ "dma_writeq_full" },
{ "dma_write_prioq_full" },
{ "rxbds_empty" },
{ "rx_discards" },
{ "rx_errors" },
{ "rx_threshold_hit" },
{ "dma_readq_full" },
{ "dma_read_prioq_full" },
{ "tx_comp_queue_full" },
{ "ring_set_send_prod_index" },
{ "ring_status_update" },
{ "nic_irqs" },
{ "nic_avoided_irqs" },
{ "nic_tx_threshold_hit" },
{ "mbuf_lwm_thresh_hit" },
};
#define TG3_NUM_STATS ARRAY_SIZE(ethtool_stats_keys)
#define TG3_NVRAM_TEST 0
#define TG3_LINK_TEST 1
#define TG3_REGISTER_TEST 2
#define TG3_MEMORY_TEST 3
#define TG3_MAC_LOOPB_TEST 4
#define TG3_PHY_LOOPB_TEST 5
#define TG3_EXT_LOOPB_TEST 6
#define TG3_INTERRUPT_TEST 7
static const struct {
const char string[ETH_GSTRING_LEN];
} ethtool_test_keys[] = {
[TG3_NVRAM_TEST] = { "nvram test (online) " },
[TG3_LINK_TEST] = { "link test (online) " },
[TG3_REGISTER_TEST] = { "register test (offline)" },
[TG3_MEMORY_TEST] = { "memory test (offline)" },
[TG3_MAC_LOOPB_TEST] = { "mac loopback test (offline)" },
[TG3_PHY_LOOPB_TEST] = { "phy loopback test (offline)" },
[TG3_EXT_LOOPB_TEST] = { "ext loopback test (offline)" },
[TG3_INTERRUPT_TEST] = { "interrupt test (offline)" },
};
#define TG3_NUM_TEST ARRAY_SIZE(ethtool_test_keys)
static void tg3_write32(struct tg3 *tp, u32 off, u32 val)
{
writel(val, tp->regs + off);
}
static u32 tg3_read32(struct tg3 *tp, u32 off)
{
return readl(tp->regs + off);
}
static void tg3_ape_write32(struct tg3 *tp, u32 off, u32 val)
{
writel(val, tp->aperegs + off);
}
static u32 tg3_ape_read32(struct tg3 *tp, u32 off)
{
return readl(tp->aperegs + off);
}
static void tg3_write_indirect_reg32(struct tg3 *tp, u32 off, u32 val)
{
unsigned long flags;
spin_lock_irqsave(&tp->indirect_lock, flags);
pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off);
pci_write_config_dword(tp->pdev, TG3PCI_REG_DATA, val);
spin_unlock_irqrestore(&tp->indirect_lock, flags);
}
static void tg3_write_flush_reg32(struct tg3 *tp, u32 off, u32 val)
{
writel(val, tp->regs + off);
readl(tp->regs + off);
}
static u32 tg3_read_indirect_reg32(struct tg3 *tp, u32 off)
{
unsigned long flags;
u32 val;
spin_lock_irqsave(&tp->indirect_lock, flags);
pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off);
pci_read_config_dword(tp->pdev, TG3PCI_REG_DATA, &val);
spin_unlock_irqrestore(&tp->indirect_lock, flags);
return val;
}
static void tg3_write_indirect_mbox(struct tg3 *tp, u32 off, u32 val)
{
unsigned long flags;
if (off == (MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW)) {
pci_write_config_dword(tp->pdev, TG3PCI_RCV_RET_RING_CON_IDX +
TG3_64BIT_REG_LOW, val);
return;
}
if (off == TG3_RX_STD_PROD_IDX_REG) {
pci_write_config_dword(tp->pdev, TG3PCI_STD_RING_PROD_IDX +
TG3_64BIT_REG_LOW, val);
return;
}
spin_lock_irqsave(&tp->indirect_lock, flags);
pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off + 0x5600);
pci_write_config_dword(tp->pdev, TG3PCI_REG_DATA, val);
spin_unlock_irqrestore(&tp->indirect_lock, flags);
/* In indirect mode when disabling interrupts, we also need
* to clear the interrupt bit in the GRC local ctrl register.
*/
if ((off == (MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW)) &&
(val == 0x1)) {
pci_write_config_dword(tp->pdev, TG3PCI_MISC_LOCAL_CTRL,
tp->grc_local_ctrl|GRC_LCLCTRL_CLEARINT);
}
}
static u32 tg3_read_indirect_mbox(struct tg3 *tp, u32 off)
{
unsigned long flags;
u32 val;
spin_lock_irqsave(&tp->indirect_lock, flags);
pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off + 0x5600);
pci_read_config_dword(tp->pdev, TG3PCI_REG_DATA, &val);
spin_unlock_irqrestore(&tp->indirect_lock, flags);
return val;
}
/* usec_wait specifies the wait time in usec when writing to certain registers
* where it is unsafe to read back the register without some delay.
* GRC_LOCAL_CTRL is one example if the GPIOs are toggled to switch power.
* TG3PCI_CLOCK_CTRL is another example if the clock frequencies are changed.
*/
static void _tw32_flush(struct tg3 *tp, u32 off, u32 val, u32 usec_wait)
{
if (tg3_flag(tp, PCIX_TARGET_HWBUG) || tg3_flag(tp, ICH_WORKAROUND))
/* Non-posted methods */
tp->write32(tp, off, val);
else {
/* Posted method */
tg3_write32(tp, off, val);
if (usec_wait)
udelay(usec_wait);
tp->read32(tp, off);
}
/* Wait again after the read for the posted method to guarantee that
* the wait time is met.
*/
if (usec_wait)
udelay(usec_wait);
}
static inline void tw32_mailbox_flush(struct tg3 *tp, u32 off, u32 val)
{
tp->write32_mbox(tp, off, val);
if (tg3_flag(tp, FLUSH_POSTED_WRITES) ||
(!tg3_flag(tp, MBOX_WRITE_REORDER) &&
!tg3_flag(tp, ICH_WORKAROUND)))
tp->read32_mbox(tp, off);
}
static void tg3_write32_tx_mbox(struct tg3 *tp, u32 off, u32 val)
{
void __iomem *mbox = tp->regs + off;
writel(val, mbox);
if (tg3_flag(tp, TXD_MBOX_HWBUG))
writel(val, mbox);
if (tg3_flag(tp, MBOX_WRITE_REORDER) ||
tg3_flag(tp, FLUSH_POSTED_WRITES))
readl(mbox);
}
static u32 tg3_read32_mbox_5906(struct tg3 *tp, u32 off)
{
return readl(tp->regs + off + GRCMBOX_BASE);
}
static void tg3_write32_mbox_5906(struct tg3 *tp, u32 off, u32 val)
{
writel(val, tp->regs + off + GRCMBOX_BASE);
}
#define tw32_mailbox(reg, val) tp->write32_mbox(tp, reg, val)
#define tw32_mailbox_f(reg, val) tw32_mailbox_flush(tp, (reg), (val))
#define tw32_rx_mbox(reg, val) tp->write32_rx_mbox(tp, reg, val)
#define tw32_tx_mbox(reg, val) tp->write32_tx_mbox(tp, reg, val)
#define tr32_mailbox(reg) tp->read32_mbox(tp, reg)
#define tw32(reg, val) tp->write32(tp, reg, val)
#define tw32_f(reg, val) _tw32_flush(tp, (reg), (val), 0)
#define tw32_wait_f(reg, val, us) _tw32_flush(tp, (reg), (val), (us))
#define tr32(reg) tp->read32(tp, reg)
static void tg3_write_mem(struct tg3 *tp, u32 off, u32 val)
{
unsigned long flags;
if (tg3_asic_rev(tp) == ASIC_REV_5906 &&
(off >= NIC_SRAM_STATS_BLK) && (off < NIC_SRAM_TX_BUFFER_DESC))
return;
spin_lock_irqsave(&tp->indirect_lock, flags);
if (tg3_flag(tp, SRAM_USE_CONFIG)) {
pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, off);
pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
/* Always leave this as zero. */
pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
} else {
tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, off);
tw32_f(TG3PCI_MEM_WIN_DATA, val);
/* Always leave this as zero. */
tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, 0);
}
spin_unlock_irqrestore(&tp->indirect_lock, flags);
}
static void tg3_read_mem(struct tg3 *tp, u32 off, u32 *val)
{
unsigned long flags;
if (tg3_asic_rev(tp) == ASIC_REV_5906 &&
(off >= NIC_SRAM_STATS_BLK) && (off < NIC_SRAM_TX_BUFFER_DESC)) {
*val = 0;
return;
}
spin_lock_irqsave(&tp->indirect_lock, flags);
if (tg3_flag(tp, SRAM_USE_CONFIG)) {
pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, off);
pci_read_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
/* Always leave this as zero. */
pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
} else {
tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, off);
*val = tr32(TG3PCI_MEM_WIN_DATA);
/* Always leave this as zero. */
tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, 0);
}
spin_unlock_irqrestore(&tp->indirect_lock, flags);
}
static void tg3_ape_lock_init(struct tg3 *tp)
{
int i;
u32 regbase, bit;
if (tg3_asic_rev(tp) == ASIC_REV_5761)
regbase = TG3_APE_LOCK_GRANT;
else
regbase = TG3_APE_PER_LOCK_GRANT;
/* Make sure the driver hasn't any stale locks. */
for (i = TG3_APE_LOCK_PHY0; i <= TG3_APE_LOCK_GPIO; i++) {
switch (i) {
case TG3_APE_LOCK_PHY0:
case TG3_APE_LOCK_PHY1:
case TG3_APE_LOCK_PHY2:
case TG3_APE_LOCK_PHY3:
bit = APE_LOCK_GRANT_DRIVER;
break;
default:
if (!tp->pci_fn)
bit = APE_LOCK_GRANT_DRIVER;
else
bit = 1 << tp->pci_fn;
}
tg3_ape_write32(tp, regbase + 4 * i, bit);
}
}
static int tg3_ape_lock(struct tg3 *tp, int locknum)
{
int i, off;
int ret = 0;
u32 status, req, gnt, bit;
if (!tg3_flag(tp, ENABLE_APE))
return 0;
switch (locknum) {
case TG3_APE_LOCK_GPIO:
if (tg3_asic_rev(tp) == ASIC_REV_5761)
return 0;
fallthrough;
case TG3_APE_LOCK_GRC:
case TG3_APE_LOCK_MEM:
if (!tp->pci_fn)
bit = APE_LOCK_REQ_DRIVER;
else
bit = 1 << tp->pci_fn;
break;
case TG3_APE_LOCK_PHY0:
case TG3_APE_LOCK_PHY1:
case TG3_APE_LOCK_PHY2:
case TG3_APE_LOCK_PHY3:
bit = APE_LOCK_REQ_DRIVER;
break;
default:
return -EINVAL;
}
if (tg3_asic_rev(tp) == ASIC_REV_5761) {
req = TG3_APE_LOCK_REQ;
gnt = TG3_APE_LOCK_GRANT;
} else {
req = TG3_APE_PER_LOCK_REQ;
gnt = TG3_APE_PER_LOCK_GRANT;
}
off = 4 * locknum;
tg3_ape_write32(tp, req + off, bit);
/* Wait for up to 1 millisecond to acquire lock. */
for (i = 0; i < 100; i++) {
status = tg3_ape_read32(tp, gnt + off);
if (status == bit)
break;
if (pci_channel_offline(tp->pdev))
break;
udelay(10);
}
if (status != bit) {
/* Revoke the lock request. */
tg3_ape_write32(tp, gnt + off, bit);
ret = -EBUSY;
}
return ret;
}
static void tg3_ape_unlock(struct tg3 *tp, int locknum)
{
u32 gnt, bit;
if (!tg3_flag(tp, ENABLE_APE))
return;
switch (locknum) {
case TG3_APE_LOCK_GPIO:
if (tg3_asic_rev(tp) == ASIC_REV_5761)
return;
fallthrough;
case TG3_APE_LOCK_GRC:
case TG3_APE_LOCK_MEM:
if (!tp->pci_fn)
bit = APE_LOCK_GRANT_DRIVER;
else
bit = 1 << tp->pci_fn;
break;
case TG3_APE_LOCK_PHY0:
case TG3_APE_LOCK_PHY1:
case TG3_APE_LOCK_PHY2:
case TG3_APE_LOCK_PHY3:
bit = APE_LOCK_GRANT_DRIVER;
break;
default:
return;
}
if (tg3_asic_rev(tp) == ASIC_REV_5761)
gnt = TG3_APE_LOCK_GRANT;
else
gnt = TG3_APE_PER_LOCK_GRANT;
tg3_ape_write32(tp, gnt + 4 * locknum, bit);
}
static int tg3_ape_event_lock(struct tg3 *tp, u32 timeout_us)
{
u32 apedata;
while (timeout_us) {
if (tg3_ape_lock(tp, TG3_APE_LOCK_MEM))
return -EBUSY;
apedata = tg3_ape_read32(tp, TG3_APE_EVENT_STATUS);
if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
break;
tg3_ape_unlock(tp, TG3_APE_LOCK_MEM);
udelay(10);
timeout_us -= (timeout_us > 10) ? 10 : timeout_us;
}
return timeout_us ? 0 : -EBUSY;
}
#ifdef CONFIG_TIGON3_HWMON
static int tg3_ape_wait_for_event(struct tg3 *tp, u32 timeout_us)
{
u32 i, apedata;
for (i = 0; i < timeout_us / 10; i++) {
apedata = tg3_ape_read32(tp, TG3_APE_EVENT_STATUS);
if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
break;
udelay(10);
}
return i == timeout_us / 10;
}
static int tg3_ape_scratchpad_read(struct tg3 *tp, u32 *data, u32 base_off,
u32 len)
{
int err;
u32 i, bufoff, msgoff, maxlen, apedata;
if (!tg3_flag(tp, APE_HAS_NCSI))
return 0;
apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG);
if (apedata != APE_SEG_SIG_MAGIC)
return -ENODEV;
apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS);
if (!(apedata & APE_FW_STATUS_READY))
return -EAGAIN;
bufoff = tg3_ape_read32(tp, TG3_APE_SEG_MSG_BUF_OFF) +
TG3_APE_SHMEM_BASE;
msgoff = bufoff + 2 * sizeof(u32);
maxlen = tg3_ape_read32(tp, TG3_APE_SEG_MSG_BUF_LEN);
while (len) {
u32 length;
/* Cap xfer sizes to scratchpad limits. */
length = (len > maxlen) ? maxlen : len;
len -= length;
apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS);
if (!(apedata & APE_FW_STATUS_READY))
return -EAGAIN;
/* Wait for up to 1 msec for APE to service previous event. */
err = tg3_ape_event_lock(tp, 1000);
if (err)
return err;
apedata = APE_EVENT_STATUS_DRIVER_EVNT |
APE_EVENT_STATUS_SCRTCHPD_READ |
APE_EVENT_STATUS_EVENT_PENDING;
tg3_ape_write32(tp, TG3_APE_EVENT_STATUS, apedata);
tg3_ape_write32(tp, bufoff, base_off);
tg3_ape_write32(tp, bufoff + sizeof(u32), length);
tg3_ape_unlock(tp, TG3_APE_LOCK_MEM);
tg3_ape_write32(tp, TG3_APE_EVENT, APE_EVENT_1);
base_off += length;
if (tg3_ape_wait_for_event(tp, 30000))
return -EAGAIN;
for (i = 0; length; i += 4, length -= 4) {
u32 val = tg3_ape_read32(tp, msgoff + i);
memcpy(data, &val, sizeof(u32));
data++;
}
}
return 0;
}
#endif
static int tg3_ape_send_event(struct tg3 *tp, u32 event)
{
int err;
u32 apedata;
apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG);
if (apedata != APE_SEG_SIG_MAGIC)
return -EAGAIN;
apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS);
if (!(apedata & APE_FW_STATUS_READY))
return -EAGAIN;
/* Wait for up to 20 millisecond for APE to service previous event. */
err = tg3_ape_event_lock(tp, 20000);
if (err)
return err;
tg3_ape_write32(tp, TG3_APE_EVENT_STATUS,
event | APE_EVENT_STATUS_EVENT_PENDING);
tg3_ape_unlock(tp, TG3_APE_LOCK_MEM);
tg3_ape_write32(tp, TG3_APE_EVENT, APE_EVENT_1);
return 0;
}
static void tg3_ape_driver_state_change(struct tg3 *tp, int kind)
{
u32 event;
u32 apedata;
if (!tg3_flag(tp, ENABLE_APE))
return;
switch (kind) {
case RESET_KIND_INIT:
tg3_ape_write32(tp, TG3_APE_HOST_HEARTBEAT_COUNT, tp->ape_hb++);
tg3_ape_write32(tp, TG3_APE_HOST_SEG_SIG,
APE_HOST_SEG_SIG_MAGIC);
tg3_ape_write32(tp, TG3_APE_HOST_SEG_LEN,
APE_HOST_SEG_LEN_MAGIC);
apedata = tg3_ape_read32(tp, TG3_APE_HOST_INIT_COUNT);
tg3_ape_write32(tp, TG3_APE_HOST_INIT_COUNT, ++apedata);
tg3_ape_write32(tp, TG3_APE_HOST_DRIVER_ID,
APE_HOST_DRIVER_ID_MAGIC(TG3_MAJ_NUM, TG3_MIN_NUM));
tg3_ape_write32(tp, TG3_APE_HOST_BEHAVIOR,
APE_HOST_BEHAV_NO_PHYLOCK);
tg3_ape_write32(tp, TG3_APE_HOST_DRVR_STATE,
TG3_APE_HOST_DRVR_STATE_START);
event = APE_EVENT_STATUS_STATE_START;
break;
case RESET_KIND_SHUTDOWN:
if (device_may_wakeup(&tp->pdev->dev) &&
tg3_flag(tp, WOL_ENABLE)) {
tg3_ape_write32(tp, TG3_APE_HOST_WOL_SPEED,
TG3_APE_HOST_WOL_SPEED_AUTO);
apedata = TG3_APE_HOST_DRVR_STATE_WOL;
} else
apedata = TG3_APE_HOST_DRVR_STATE_UNLOAD;
tg3_ape_write32(tp, TG3_APE_HOST_DRVR_STATE, apedata);
event = APE_EVENT_STATUS_STATE_UNLOAD;
break;
default:
return;
}
event |= APE_EVENT_STATUS_DRIVER_EVNT | APE_EVENT_STATUS_STATE_CHNGE;
tg3_ape_send_event(tp, event);
}
static void tg3_send_ape_heartbeat(struct tg3 *tp,
unsigned long interval)
{
/* Check if hb interval has exceeded */
if (!tg3_flag(tp, ENABLE_APE) ||
time_before(jiffies, tp->ape_hb_jiffies + interval))
return;
tg3_ape_write32(tp, TG3_APE_HOST_HEARTBEAT_COUNT, tp->ape_hb++);
tp->ape_hb_jiffies = jiffies;
}
static void tg3_disable_ints(struct tg3 *tp)
{
int i;
tw32(TG3PCI_MISC_HOST_CTRL,
(tp->misc_host_ctrl | MISC_HOST_CTRL_MASK_PCI_INT));
for (i = 0; i < tp->irq_max; i++)
tw32_mailbox_f(tp->napi[i].int_mbox, 0x00000001);
}
static void tg3_enable_ints(struct tg3 *tp)
{
int i;
tp->irq_sync = 0;
wmb();
tw32(TG3PCI_MISC_HOST_CTRL,
(tp->misc_host_ctrl & ~MISC_HOST_CTRL_MASK_PCI_INT));
tp->coal_now = tp->coalesce_mode | HOSTCC_MODE_ENABLE;
for (i = 0; i < tp->irq_cnt; i++) {
struct tg3_napi *tnapi = &tp->napi[i];
tw32_mailbox_f(tnapi->int_mbox, tnapi->last_tag << 24);
if (tg3_flag(tp, 1SHOT_MSI))
tw32_mailbox_f(tnapi->int_mbox, tnapi->last_tag << 24);
tp->coal_now |= tnapi->coal_now;
}
/* Force an initial interrupt */
if (!tg3_flag(tp, TAGGED_STATUS) &&
(tp->napi[0].hw_status->status & SD_STATUS_UPDATED))
tw32(GRC_LOCAL_CTRL, tp->grc_local_ctrl | GRC_LCLCTRL_SETINT);
else
tw32(HOSTCC_MODE, tp->coal_now);
tp->coal_now &= ~(tp->napi[0].coal_now | tp->napi[1].coal_now);
}
static inline unsigned int tg3_has_work(struct tg3_napi *tnapi)
{
struct tg3 *tp = tnapi->tp;
struct tg3_hw_status *sblk = tnapi->hw_status;
unsigned int work_exists = 0;
/* check for phy events */
if (!(tg3_flag(tp, USE_LINKCHG_REG) || tg3_flag(tp, POLL_SERDES))) {
if (sblk->status & SD_STATUS_LINK_CHG)
work_exists = 1;
}
/* check for TX work to do */
if (sblk->idx[0].tx_consumer != tnapi->tx_cons)
work_exists = 1;
/* check for RX work to do */
if (tnapi->rx_rcb_prod_idx &&
*(tnapi->rx_rcb_prod_idx) != tnapi->rx_rcb_ptr)
work_exists = 1;
return work_exists;
}
/* tg3_int_reenable
* similar to tg3_enable_ints, but it accurately determines whether there
* is new work pending and can return without flushing the PIO write
* which reenables interrupts
*/
static void tg3_int_reenable(struct tg3_napi *tnapi)
{
struct tg3 *tp = tnapi->tp;
tw32_mailbox(tnapi->int_mbox, tnapi->last_tag << 24);
/* When doing tagged status, this work check is unnecessary.
* The last_tag we write above tells the chip which piece of
* work we've completed.
*/
if (!tg3_flag(tp, TAGGED_STATUS) && tg3_has_work(tnapi))
tw32(HOSTCC_MODE, tp->coalesce_mode |
HOSTCC_MODE_ENABLE | tnapi->coal_now);
}
static void tg3_switch_clocks(struct tg3 *tp)
{
u32 clock_ctrl;
u32 orig_clock_ctrl;
if (tg3_flag(tp, CPMU_PRESENT) || tg3_flag(tp, 5780_CLASS))
return;
clock_ctrl = tr32(TG3PCI_CLOCK_CTRL);
orig_clock_ctrl = clock_ctrl;
clock_ctrl &= (CLOCK_CTRL_FORCE_CLKRUN |
CLOCK_CTRL_CLKRUN_OENABLE |
0x1f);
tp->pci_clock_ctrl = clock_ctrl;
if (tg3_flag(tp, 5705_PLUS)) {
if (orig_clock_ctrl & CLOCK_CTRL_625_CORE) {
tw32_wait_f(TG3PCI_CLOCK_CTRL,
clock_ctrl | CLOCK_CTRL_625_CORE, 40);
}
} else if ((orig_clock_ctrl & CLOCK_CTRL_44MHZ_CORE) != 0) {
tw32_wait_f(TG3PCI_CLOCK_CTRL,
clock_ctrl |
(CLOCK_CTRL_44MHZ_CORE | CLOCK_CTRL_ALTCLK),
40);
tw32_wait_f(TG3PCI_CLOCK_CTRL,
clock_ctrl | (CLOCK_CTRL_ALTCLK),
40);
}
tw32_wait_f(TG3PCI_CLOCK_CTRL, clock_ctrl, 40);
}
#define PHY_BUSY_LOOPS 5000
static int __tg3_readphy(struct tg3 *tp, unsigned int phy_addr, int reg,
u32 *val)
{
u32 frame_val;
unsigned int loops;
int ret;
if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
tw32_f(MAC_MI_MODE,
(tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
udelay(80);
}
tg3_ape_lock(tp, tp->phy_ape_lock);
*val = 0x0;
frame_val = ((phy_addr << MI_COM_PHY_ADDR_SHIFT) &
MI_COM_PHY_ADDR_MASK);
frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
MI_COM_REG_ADDR_MASK);
frame_val |= (MI_COM_CMD_READ | MI_COM_START);
tw32_f(MAC_MI_COM, frame_val);
loops = PHY_BUSY_LOOPS;
while (loops != 0) {
udelay(10);
frame_val = tr32(MAC_MI_COM);
if ((frame_val & MI_COM_BUSY) == 0) {
udelay(5);
frame_val = tr32(MAC_MI_COM);
break;
}
loops -= 1;
}
ret = -EBUSY;
if (loops != 0) {
*val = frame_val & MI_COM_DATA_MASK;
ret = 0;
}
if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
tw32_f(MAC_MI_MODE, tp->mi_mode);
udelay(80);
}
tg3_ape_unlock(tp, tp->phy_ape_lock);
return ret;
}
static int tg3_readphy(struct tg3 *tp, int reg, u32 *val)
{
return __tg3_readphy(tp, tp->phy_addr, reg, val);
}
static int __tg3_writephy(struct tg3 *tp, unsigned int phy_addr, int reg,
u32 val)
{
u32 frame_val;
unsigned int loops;
int ret;
if ((tp->phy_flags & TG3_PHYFLG_IS_FET) &&
(reg == MII_CTRL1000 || reg == MII_TG3_AUX_CTRL))
return 0;
if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
tw32_f(MAC_MI_MODE,
(tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
udelay(80);
}
tg3_ape_lock(tp, tp->phy_ape_lock);
frame_val = ((phy_addr << MI_COM_PHY_ADDR_SHIFT) &
MI_COM_PHY_ADDR_MASK);
frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
MI_COM_REG_ADDR_MASK);
frame_val |= (val & MI_COM_DATA_MASK);
frame_val |= (MI_COM_CMD_WRITE | MI_COM_START);
tw32_f(MAC_MI_COM, frame_val);
loops = PHY_BUSY_LOOPS;
while (loops != 0) {
udelay(10);
frame_val = tr32(MAC_MI_COM);
if ((frame_val & MI_COM_BUSY) == 0) {
udelay(5);
frame_val = tr32(MAC_MI_COM);
break;
}
loops -= 1;
}
ret = -EBUSY;
if (loops != 0)
ret = 0;
if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
tw32_f(MAC_MI_MODE, tp->mi_mode);
udelay(80);
}
tg3_ape_unlock(tp, tp->phy_ape_lock);
return ret;
}
static int tg3_writephy(struct tg3 *tp, int reg, u32 val)
{
return __tg3_writephy(tp, tp->phy_addr, reg, val);
}
static int tg3_phy_cl45_write(struct tg3 *tp, u32 devad, u32 addr, u32 val)
{
int err;
err = tg3_writephy(tp, MII_TG3_MMD_CTRL, devad);
if (err)
goto done;
err = tg3_writephy(tp, MII_TG3_MMD_ADDRESS, addr);
if (err)
goto done;
err = tg3_writephy(tp, MII_TG3_MMD_CTRL,
MII_TG3_MMD_CTRL_DATA_NOINC | devad);
if (err)
goto done;
err = tg3_writephy(tp, MII_TG3_MMD_ADDRESS, val);
done:
return err;
}
static int tg3_phy_cl45_read(struct tg3 *tp, u32 devad, u32 addr, u32 *val)
{
int err;
err = tg3_writephy(tp, MII_TG3_MMD_CTRL, devad);
if (err)
goto done;
err = tg3_writephy(tp, MII_TG3_MMD_ADDRESS, addr);
if (err)
goto done;
err = tg3_writephy(tp, MII_TG3_MMD_CTRL,
MII_TG3_MMD_CTRL_DATA_NOINC | devad);
if (err)
goto done;
err = tg3_readphy(tp, MII_TG3_MMD_ADDRESS, val);
done:
return err;
}
static int tg3_phydsp_read(struct tg3 *tp, u32 reg, u32 *val)
{
int err;
err = tg3_writephy(tp, MII_TG3_DSP_ADDRESS, reg);
if (!err)
err = tg3_readphy(tp, MII_TG3_DSP_RW_PORT, val);
return err;
}
static int tg3_phydsp_write(struct tg3 *tp, u32 reg, u32 val)
{
int err;
err = tg3_writephy(tp, MII_TG3_DSP_ADDRESS, reg);
if (!err)
err = tg3_writephy(tp, MII_TG3_DSP_RW_PORT, val);
return err;
}
static int tg3_phy_auxctl_read(struct tg3 *tp, int reg, u32 *val)
{
int err;
err = tg3_writephy(tp, MII_TG3_AUX_CTRL,
(reg << MII_TG3_AUXCTL_MISC_RDSEL_SHIFT) |
MII_TG3_AUXCTL_SHDWSEL_MISC);
if (!err)
err = tg3_readphy(tp, MII_TG3_AUX_CTRL, val);
return err;
}
static int tg3_phy_auxctl_write(struct tg3 *tp, int reg, u32 set)
{
if (reg == MII_TG3_AUXCTL_SHDWSEL_MISC)
set |= MII_TG3_AUXCTL_MISC_WREN;
return tg3_writephy(tp, MII_TG3_AUX_CTRL, set | reg);
}
static int tg3_phy_toggle_auxctl_smdsp(struct tg3 *tp, bool enable)
{
u32 val;
int err;
err = tg3_phy_auxctl_read(tp, MII_TG3_AUXCTL_SHDWSEL_AUXCTL, &val);
if (err)
return err;
if (enable)
val |= MII_TG3_AUXCTL_ACTL_SMDSP_ENA;
else
val &= ~MII_TG3_AUXCTL_ACTL_SMDSP_ENA;
err = tg3_phy_auxctl_write((tp), MII_TG3_AUXCTL_SHDWSEL_AUXCTL,
val | MII_TG3_AUXCTL_ACTL_TX_6DB);
return err;
}
static int tg3_phy_shdw_write(struct tg3 *tp, int reg, u32 val)
{
return tg3_writephy(tp, MII_TG3_MISC_SHDW,
reg | val | MII_TG3_MISC_SHDW_WREN);
}
static int tg3_bmcr_reset(struct tg3 *tp)
{
u32 phy_control;
int limit, err;
/* OK, reset it, and poll the BMCR_RESET bit until it
* clears or we time out.
*/
phy_control = BMCR_RESET;
err = tg3_writephy(tp, MII_BMCR, phy_control);
if (err != 0)
return -EBUSY;
limit = 5000;
while (limit--) {
err = tg3_readphy(tp, MII_BMCR, &phy_control);
if (err != 0)
return -EBUSY;
if ((phy_control & BMCR_RESET) == 0) {
udelay(40);
break;
}
udelay(10);
}
if (limit < 0)
return -EBUSY;
return 0;
}
static int tg3_mdio_read(struct mii_bus *bp, int mii_id, int reg)
{
struct tg3 *tp = bp->priv;
u32 val;
spin_lock_bh(&tp->lock);
if (__tg3_readphy(tp, mii_id, reg, &val))
val = -EIO;
spin_unlock_bh(&tp->lock);
return val;
}
static int tg3_mdio_write(struct mii_bus *bp, int mii_id, int reg, u16 val)
{
struct tg3 *tp = bp->priv;
u32 ret = 0;
spin_lock_bh(&tp->lock);
if (__tg3_writephy(tp, mii_id, reg, val))
ret = -EIO;
spin_unlock_bh(&tp->lock);
return ret;
}
static void tg3_mdio_config_5785(struct tg3 *tp)
{
u32 val;
struct phy_device *phydev;
phydev = mdiobus_get_phy(tp->mdio_bus, tp->phy_addr);
switch (phydev->drv->phy_id & phydev->drv->phy_id_mask) {
case PHY_ID_BCM50610:
case PHY_ID_BCM50610M:
val = MAC_PHYCFG2_50610_LED_MODES;
break;
case PHY_ID_BCMAC131:
val = MAC_PHYCFG2_AC131_LED_MODES;
break;
case PHY_ID_RTL8211C:
val = MAC_PHYCFG2_RTL8211C_LED_MODES;
break;
case PHY_ID_RTL8201E:
val = MAC_PHYCFG2_RTL8201E_LED_MODES;
break;
default:
return;
}
if (phydev->interface != PHY_INTERFACE_MODE_RGMII) {
tw32(MAC_PHYCFG2, val);
val = tr32(MAC_PHYCFG1);
val &= ~(MAC_PHYCFG1_RGMII_INT |
MAC_PHYCFG1_RXCLK_TO_MASK | MAC_PHYCFG1_TXCLK_TO_MASK);
val |= MAC_PHYCFG1_RXCLK_TIMEOUT | MAC_PHYCFG1_TXCLK_TIMEOUT;
tw32(MAC_PHYCFG1, val);
return;
}
if (!tg3_flag(tp, RGMII_INBAND_DISABLE))
val |= MAC_PHYCFG2_EMODE_MASK_MASK |
MAC_PHYCFG2_FMODE_MASK_MASK |
MAC_PHYCFG2_GMODE_MASK_MASK |
MAC_PHYCFG2_ACT_MASK_MASK |
MAC_PHYCFG2_QUAL_MASK_MASK |
MAC_PHYCFG2_INBAND_ENABLE;
tw32(MAC_PHYCFG2, val);
val = tr32(MAC_PHYCFG1);
val &= ~(MAC_PHYCFG1_RXCLK_TO_MASK | MAC_PHYCFG1_TXCLK_TO_MASK |
MAC_PHYCFG1_RGMII_EXT_RX_DEC | MAC_PHYCFG1_RGMII_SND_STAT_EN);
if (!tg3_flag(tp, RGMII_INBAND_DISABLE)) {
if (tg3_flag(tp, RGMII_EXT_IBND_RX_EN))
val |= MAC_PHYCFG1_RGMII_EXT_RX_DEC;
if (tg3_flag(tp, RGMII_EXT_IBND_TX_EN))
val |= MAC_PHYCFG1_RGMII_SND_STAT_EN;
}
val |= MAC_PHYCFG1_RXCLK_TIMEOUT | MAC_PHYCFG1_TXCLK_TIMEOUT |
MAC_PHYCFG1_RGMII_INT | MAC_PHYCFG1_TXC_DRV;
tw32(MAC_PHYCFG1, val);
val = tr32(MAC_EXT_RGMII_MODE);
val &= ~(MAC_RGMII_MODE_RX_INT_B |
MAC_RGMII_MODE_RX_QUALITY |
MAC_RGMII_MODE_RX_ACTIVITY |
MAC_RGMII_MODE_RX_ENG_DET |
MAC_RGMII_MODE_TX_ENABLE |
MAC_RGMII_MODE_TX_LOWPWR |
MAC_RGMII_MODE_TX_RESET);
if (!tg3_flag(tp, RGMII_INBAND_DISABLE)) {
if (tg3_flag(tp, RGMII_EXT_IBND_RX_EN))
val |= MAC_RGMII_MODE_RX_INT_B |
MAC_RGMII_MODE_RX_QUALITY |
MAC_RGMII_MODE_RX_ACTIVITY |
MAC_RGMII_MODE_RX_ENG_DET;
if (tg3_flag(tp, RGMII_EXT_IBND_TX_EN))
val |= MAC_RGMII_MODE_TX_ENABLE |
MAC_RGMII_MODE_TX_LOWPWR |
MAC_RGMII_MODE_TX_RESET;
}
tw32(MAC_EXT_RGMII_MODE, val);
}
static void tg3_mdio_start(struct tg3 *tp)
{
tp->mi_mode &= ~MAC_MI_MODE_AUTO_POLL;
tw32_f(MAC_MI_MODE, tp->mi_mode);
udelay(80);
if (tg3_flag(tp, MDIOBUS_INITED) &&
tg3_asic_rev(tp) == ASIC_REV_5785)
tg3_mdio_config_5785(tp);
}
static int tg3_mdio_init(struct tg3 *tp)
{
int i;
u32 reg;
struct phy_device *phydev;
if (tg3_flag(tp, 5717_PLUS)) {
u32 is_serdes;
tp->phy_addr = tp->pci_fn + 1;
if (tg3_chip_rev_id(tp) != CHIPREV_ID_5717_A0)
is_serdes = tr32(SG_DIG_STATUS) & SG_DIG_IS_SERDES;
else
is_serdes = tr32(TG3_CPMU_PHY_STRAP) &
TG3_CPMU_PHY_STRAP_IS_SERDES;
if (is_serdes)
tp->phy_addr += 7;
} else if (tg3_flag(tp, IS_SSB_CORE) && tg3_flag(tp, ROBOSWITCH)) {
int addr;
addr = ssb_gige_get_phyaddr(tp->pdev);
if (addr < 0)
return addr;
tp->phy_addr = addr;
} else
tp->phy_addr = TG3_PHY_MII_ADDR;
tg3_mdio_start(tp);
if (!tg3_flag(tp, USE_PHYLIB) || tg3_flag(tp, MDIOBUS_INITED))
return 0;
tp->mdio_bus = mdiobus_alloc();
if (tp->mdio_bus == NULL)
return -ENOMEM;
tp->mdio_bus->name = "tg3 mdio bus";
snprintf(tp->mdio_bus->id, MII_BUS_ID_SIZE, "%x", pci_dev_id(tp->pdev));
tp->mdio_bus->priv = tp;
tp->mdio_bus->parent = &tp->pdev->dev;
tp->mdio_bus->read = &tg3_mdio_read;
tp->mdio_bus->write = &tg3_mdio_write;
tp->mdio_bus->phy_mask = ~(1 << tp->phy_addr);
/* The bus registration will look for all the PHYs on the mdio bus.
* Unfortunately, it does not ensure the PHY is powered up before
* accessing the PHY ID registers. A chip reset is the
* quickest way to bring the device back to an operational state..
*/
if (tg3_readphy(tp, MII_BMCR, &reg) || (reg & BMCR_PDOWN))
tg3_bmcr_reset(tp);
i = mdiobus_register(tp->mdio_bus);
if (i) {
dev_warn(&tp->pdev->dev, "mdiobus_reg failed (0x%x)\n", i);
mdiobus_free(tp->mdio_bus);
return i;
}
phydev = mdiobus_get_phy(tp->mdio_bus, tp->phy_addr);
if (!phydev || !phydev->drv) {
dev_warn(&tp->pdev->dev, "No PHY devices\n");
mdiobus_unregister(tp->mdio_bus);
mdiobus_free(tp->mdio_bus);
return -ENODEV;
}
switch (phydev->drv->phy_id & phydev->drv->phy_id_mask) {
case PHY_ID_BCM57780:
phydev->interface = PHY_INTERFACE_MODE_GMII;
phydev->dev_flags |= PHY_BRCM_AUTO_PWRDWN_ENABLE;
break;
case PHY_ID_BCM50610:
case PHY_ID_BCM50610M:
phydev->dev_flags |= PHY_BRCM_CLEAR_RGMII_MODE |
PHY_BRCM_RX_REFCLK_UNUSED |
PHY_BRCM_DIS_TXCRXC_NOENRGY |
PHY_BRCM_AUTO_PWRDWN_ENABLE;
fallthrough;
case PHY_ID_RTL8211C:
phydev->interface = PHY_INTERFACE_MODE_RGMII;
break;
case PHY_ID_RTL8201E:
case PHY_ID_BCMAC131:
phydev->interface = PHY_INTERFACE_MODE_MII;
phydev->dev_flags |= PHY_BRCM_AUTO_PWRDWN_ENABLE;
tp->phy_flags |= TG3_PHYFLG_IS_FET;
break;
}
tg3_flag_set(tp, MDIOBUS_INITED);
if (tg3_asic_rev(tp) == ASIC_REV_5785)
tg3_mdio_config_5785(tp);
return 0;
}
static void tg3_mdio_fini(struct tg3 *tp)
{
if (tg3_flag(tp, MDIOBUS_INITED)) {
tg3_flag_clear(tp, MDIOBUS_INITED);
mdiobus_unregister(tp->mdio_bus);
mdiobus_free(tp->mdio_bus);
}
}
/* tp->lock is held. */
static inline void tg3_generate_fw_event(struct tg3 *tp)
{
u32 val;
val = tr32(GRC_RX_CPU_EVENT);
val |= GRC_RX_CPU_DRIVER_EVENT;
tw32_f(GRC_RX_CPU_EVENT, val);
tp->last_event_jiffies = jiffies;
}
#define TG3_FW_EVENT_TIMEOUT_USEC 2500
/* tp->lock is held. */
static void tg3_wait_for_event_ack(struct tg3 *tp)
{
int i;
unsigned int delay_cnt;
long time_remain;
/* If enough time has passed, no wait is necessary. */
time_remain = (long)(tp->last_event_jiffies + 1 +
usecs_to_jiffies(TG3_FW_EVENT_TIMEOUT_USEC)) -
(long)jiffies;
if (time_remain < 0)
return;
/* Check if we can shorten the wait time. */
delay_cnt = jiffies_to_usecs(time_remain);
if (delay_cnt > TG3_FW_EVENT_TIMEOUT_USEC)
delay_cnt = TG3_FW_EVENT_TIMEOUT_USEC;
delay_cnt = (delay_cnt >> 3) + 1;
for (i = 0; i < delay_cnt; i++) {
if (!(tr32(GRC_RX_CPU_EVENT) & GRC_RX_CPU_DRIVER_EVENT))
break;
if (pci_channel_offline(tp->pdev))
break;
udelay(8);
}
}
/* tp->lock is held. */
static void tg3_phy_gather_ump_data(struct tg3 *tp, u32 *data)
{
u32 reg, val;
val = 0;
if (!tg3_readphy(tp, MII_BMCR, &reg))
val = reg << 16;
if (!tg3_readphy(tp, MII_BMSR, &reg))
val |= (reg & 0xffff);
*data++ = val;
val = 0;
if (!tg3_readphy(tp, MII_ADVERTISE, &reg))
val = reg << 16;
if (!tg3_readphy(tp, MII_LPA, &reg))
val |= (reg & 0xffff);
*data++ = val;
val = 0;
if (!(tp->phy_flags & TG3_PHYFLG_MII_SERDES)) {
if (!tg3_readphy(tp, MII_CTRL1000, &reg))
val = reg << 16;
if (!tg3_readphy(tp, MII_STAT1000, &reg))
val |= (reg & 0xffff);
}
*data++ = val;
if (!tg3_readphy(tp, MII_PHYADDR, &reg))
val = reg << 16;
else
val = 0;
*data++ = val;
}
/* tp->lock is held. */
static void tg3_ump_link_report(struct tg3 *tp)
{
u32 data[4];
if (!tg3_flag(tp, 5780_CLASS) || !tg3_flag(tp, ENABLE_ASF))
return;
tg3_phy_gather_ump_data(tp, data);
tg3_wait_for_event_ack(tp);
tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX, FWCMD_NICDRV_LINK_UPDATE);
tg3_write_mem(tp, NIC_SRAM_FW_CMD_LEN_MBOX, 14);
tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 0x0, data[0]);
tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 0x4, data[1]);
tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 0x8, data[2]);
tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 0xc, data[3]);
tg3_generate_fw_event(tp);
}
/* tp->lock is held. */
static void tg3_stop_fw(struct tg3 *tp)
{
if (tg3_flag(tp, ENABLE_ASF) && !tg3_flag(tp, ENABLE_APE)) {
/* Wait for RX cpu to ACK the previous event. */
tg3_wait_for_event_ack(tp);
tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX, FWCMD_NICDRV_PAUSE_FW);
tg3_generate_fw_event(tp);
/* Wait for RX cpu to ACK this event. */
tg3_wait_for_event_ack(tp);
}
}
/* tp->lock is held. */
static void tg3_write_sig_pre_reset(struct tg3 *tp, int kind)
{
tg3_write_mem(tp, NIC_SRAM_FIRMWARE_MBOX,
NIC_SRAM_FIRMWARE_MBOX_MAGIC1);
if (tg3_flag(tp, ASF_NEW_HANDSHAKE)) {
switch (kind) {
case RESET_KIND_INIT:
tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
DRV_STATE_START);
break;
case RESET_KIND_SHUTDOWN:
tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
DRV_STATE_UNLOAD);
break;
case RESET_KIND_SUSPEND:
tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
DRV_STATE_SUSPEND);
break;
default:
break;
}
}
}
/* tp->lock is held. */
static void tg3_write_sig_post_reset(struct tg3 *tp, int kind)
{
if (tg3_flag(tp, ASF_NEW_HANDSHAKE)) {
switch (kind) {
case RESET_KIND_INIT:
tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
DRV_STATE_START_DONE);
break;
case RESET_KIND_SHUTDOWN:
tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
DRV_STATE_UNLOAD_DONE);
break;
default:
break;
}
}
}
/* tp->lock is held. */
static void tg3_write_sig_legacy(struct tg3 *tp, int kind)
{
if (tg3_flag(tp, ENABLE_ASF)) {
switch (kind) {
case RESET_KIND_INIT:
tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
DRV_STATE_START);
break;
case RESET_KIND_SHUTDOWN:
tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
DRV_STATE_UNLOAD);
break;
case RESET_KIND_SUSPEND:
tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
DRV_STATE_SUSPEND);
break;
default:
break;
}
}
}
static int tg3_poll_fw(struct tg3 *tp)
{
int i;
u32 val;
if (tg3_flag(tp, NO_FWARE_REPORTED))
return 0;
if (tg3_flag(tp, IS_SSB_CORE)) {
/* We don't use firmware. */
return 0;
}
if (tg3_asic_rev(tp) == ASIC_REV_5906) {
/* Wait up to 20ms for init done. */
for (i = 0; i < 200; i++) {
if (tr32(VCPU_STATUS) & VCPU_STATUS_INIT_DONE)
return 0;
if (pci_channel_offline(tp->pdev))
return -ENODEV;
udelay(100);
}
return -ENODEV;
}
/* Wait for firmware initialization to complete. */
for (i = 0; i < 100000; i++) {
tg3_read_mem(tp, NIC_SRAM_FIRMWARE_MBOX, &val);
if (val == ~NIC_SRAM_FIRMWARE_MBOX_MAGIC1)
break;
if (pci_channel_offline(tp->pdev)) {
if (!tg3_flag(tp, NO_FWARE_REPORTED)) {
tg3_flag_set(tp, NO_FWARE_REPORTED);
netdev_info(tp->dev, "No firmware running\n");
}
break;
}
udelay(10);
}
/* Chip might not be fitted with firmware. Some Sun onboard
* parts are configured like that. So don't signal the timeout
* of the above loop as an error, but do report the lack of
* running firmware once.
*/
if (i >= 100000 && !tg3_flag(tp, NO_FWARE_REPORTED)) {
tg3_flag_set(tp, NO_FWARE_REPORTED);
netdev_info(tp->dev, "No firmware running\n");
}
if (tg3_chip_rev_id(tp) == CHIPREV_ID_57765_A0) {
/* The 57765 A0 needs a little more
* time to do some important work.
*/
mdelay(10);
}
return 0;
}
static void tg3_link_report(struct tg3 *tp)
{
if (!netif_carrier_ok(tp->dev)) {
netif_info(tp, link, tp->dev, "Link is down\n");
tg3_ump_link_report(tp);
} else if (netif_msg_link(tp)) {
netdev_info(tp->dev, "Link is up at %d Mbps, %s duplex\n",
(tp->link_config.active_speed == SPEED_1000 ?
1000 :
(tp->link_config.active_speed == SPEED_100 ?
100 : 10)),
(tp->link_config.active_duplex == DUPLEX_FULL ?
"full" : "half"));
netdev_info(tp->dev, "Flow control is %s for TX and %s for RX\n",
(tp->link_config.active_flowctrl & FLOW_CTRL_TX) ?
"on" : "off",
(tp->link_config.active_flowctrl & FLOW_CTRL_RX) ?
"on" : "off");
if (tp->phy_flags & TG3_PHYFLG_EEE_CAP)
netdev_info(tp->dev, "EEE is %s\n",
tp->setlpicnt ? "enabled" : "disabled");
tg3_ump_link_report(tp);
}
tp->link_up = netif_carrier_ok(tp->dev);
}
static u32 tg3_decode_flowctrl_1000T(u32 adv)
{
u32 flowctrl = 0;
if (adv & ADVERTISE_PAUSE_CAP) {
flowctrl |= FLOW_CTRL_RX;
if (!(adv & ADVERTISE_PAUSE_ASYM))
flowctrl |= FLOW_CTRL_TX;
} else if (adv & ADVERTISE_PAUSE_ASYM)
flowctrl |= FLOW_CTRL_TX;
return flowctrl;
}
static u16 tg3_advert_flowctrl_1000X(u8 flow_ctrl)
{
u16 miireg;
if ((flow_ctrl & FLOW_CTRL_TX) && (flow_ctrl & FLOW_CTRL_RX))
miireg = ADVERTISE_1000XPAUSE;
else if (flow_ctrl & FLOW_CTRL_TX)
miireg = ADVERTISE_1000XPSE_ASYM;
else if (flow_ctrl & FLOW_CTRL_RX)
miireg = ADVERTISE_1000XPAUSE | ADVERTISE_1000XPSE_ASYM;
else
miireg = 0;
return miireg;
}
static u32 tg3_decode_flowctrl_1000X(u32 adv)
{
u32 flowctrl = 0;
if (adv & ADVERTISE_1000XPAUSE) {
flowctrl |= FLOW_CTRL_RX;
if (!(adv & ADVERTISE_1000XPSE_ASYM))
flowctrl |= FLOW_CTRL_TX;
} else if (adv & ADVERTISE_1000XPSE_ASYM)
flowctrl |= FLOW_CTRL_TX;
return flowctrl;
}
static u8 tg3_resolve_flowctrl_1000X(u16 lcladv, u16 rmtadv)
{
u8 cap = 0;
if (lcladv & rmtadv & ADVERTISE_1000XPAUSE) {
cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
} else if (lcladv & rmtadv & ADVERTISE_1000XPSE_ASYM) {
if (lcladv & ADVERTISE_1000XPAUSE)
cap = FLOW_CTRL_RX;
if (rmtadv & ADVERTISE_1000XPAUSE)
cap = FLOW_CTRL_TX;
}
return cap;
}
static void tg3_setup_flow_control(struct tg3 *tp, u32 lcladv, u32 rmtadv)
{
u8 autoneg;
u8 flowctrl = 0;
u32 old_rx_mode = tp->rx_mode;
u32 old_tx_mode = tp->tx_mode;
if (tg3_flag(tp, USE_PHYLIB))
autoneg = mdiobus_get_phy(tp->mdio_bus, tp->phy_addr)->autoneg;
else
autoneg = tp->link_config.autoneg;
if (autoneg == AUTONEG_ENABLE && tg3_flag(tp, PAUSE_AUTONEG)) {
if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES)
flowctrl = tg3_resolve_flowctrl_1000X(lcladv, rmtadv);
else
flowctrl = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
} else
flowctrl = tp->link_config.flowctrl;
tp->link_config.active_flowctrl = flowctrl;
if (flowctrl & FLOW_CTRL_RX)
tp->rx_mode |= RX_MODE_FLOW_CTRL_ENABLE;
else
tp->rx_mode &= ~RX_MODE_FLOW_CTRL_ENABLE;
if (old_rx_mode != tp->rx_mode)
tw32_f(MAC_RX_MODE, tp->rx_mode);
if (flowctrl & FLOW_CTRL_TX)
tp->tx_mode |= TX_MODE_FLOW_CTRL_ENABLE;
else
tp->tx_mode &= ~TX_MODE_FLOW_CTRL_ENABLE;
if (old_tx_mode != tp->tx_mode)
tw32_f(MAC_TX_MODE, tp->tx_mode);
}
static void tg3_adjust_link(struct net_device *dev)
{
u8 oldflowctrl, linkmesg = 0;
u32 mac_mode, lcl_adv, rmt_adv;
struct tg3 *tp = netdev_priv(dev);
struct phy_device *phydev = mdiobus_get_phy(tp->mdio_bus, tp->phy_addr);
spin_lock_bh(&tp->lock);
mac_mode = tp->mac_mode & ~(MAC_MODE_PORT_MODE_MASK |
MAC_MODE_HALF_DUPLEX);
oldflowctrl = tp->link_config.active_flowctrl;
if (phydev->link) {
lcl_adv = 0;
rmt_adv = 0;
if (phydev->speed == SPEED_100 || phydev->speed == SPEED_10)
mac_mode |= MAC_MODE_PORT_MODE_MII;
else if (phydev->speed == SPEED_1000 ||
tg3_asic_rev(tp) != ASIC_REV_5785)
mac_mode |= MAC_MODE_PORT_MODE_GMII;
else
mac_mode |= MAC_MODE_PORT_MODE_MII;
if (phydev->duplex == DUPLEX_HALF)
mac_mode |= MAC_MODE_HALF_DUPLEX;
else {
lcl_adv = mii_advertise_flowctrl(
tp->link_config.flowctrl);
if (phydev->pause)
rmt_adv = LPA_PAUSE_CAP;
if (phydev->asym_pause)
rmt_adv |= LPA_PAUSE_ASYM;
}
tg3_setup_flow_control(tp, lcl_adv, rmt_adv);
} else
mac_mode |= MAC_MODE_PORT_MODE_GMII;
if (mac_mode != tp->mac_mode) {
tp->mac_mode = mac_mode;
tw32_f(MAC_MODE, tp->mac_mode);
udelay(40);
}
if (tg3_asic_rev(tp) == ASIC_REV_5785) {
if (phydev->speed == SPEED_10)
tw32(MAC_MI_STAT,
MAC_MI_STAT_10MBPS_MODE |
MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
else
tw32(MAC_MI_STAT, MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
}
if (phydev->speed == SPEED_1000 && phydev->duplex == DUPLEX_HALF)
tw32(MAC_TX_LENGTHS,
((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
(6 << TX_LENGTHS_IPG_SHIFT) |
(0xff << TX_LENGTHS_SLOT_TIME_SHIFT)));
else
tw32(MAC_TX_LENGTHS,
((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
(6 << TX_LENGTHS_IPG_SHIFT) |
(32 << TX_LENGTHS_SLOT_TIME_SHIFT)));
if (phydev->link != tp->old_link ||
phydev->speed != tp->link_config.active_speed ||
phydev->duplex != tp->link_config.active_duplex ||
oldflowctrl != tp->link_config.active_flowctrl)
linkmesg = 1;
tp->old_link = phydev->link;
tp->link_config.active_speed = phydev->speed;
tp->link_config.active_duplex = phydev->duplex;
spin_unlock_bh(&tp->lock);
if (linkmesg)
tg3_link_report(tp);
}
static int tg3_phy_init(struct tg3 *tp)
{
struct phy_device *phydev;
if (tp->phy_flags & TG3_PHYFLG_IS_CONNECTED)
return 0;
/* Bring the PHY back to a known state. */
tg3_bmcr_reset(tp);
phydev = mdiobus_get_phy(tp->mdio_bus, tp->phy_addr);
/* Attach the MAC to the PHY. */
phydev = phy_connect(tp->dev, phydev_name(phydev),
tg3_adjust_link, phydev->interface);
if (IS_ERR(phydev)) {
dev_err(&tp->pdev->dev, "Could not attach to PHY\n");
return PTR_ERR(phydev);
}
/* Mask with MAC supported features. */
switch (phydev->interface) {
case PHY_INTERFACE_MODE_GMII:
case PHY_INTERFACE_MODE_RGMII:
if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY)) {
phy_set_max_speed(phydev, SPEED_1000);
phy_support_asym_pause(phydev);
break;
}
fallthrough;
case PHY_INTERFACE_MODE_MII:
phy_set_max_speed(phydev, SPEED_100);
phy_support_asym_pause(phydev);
break;
default:
phy_disconnect(mdiobus_get_phy(tp->mdio_bus, tp->phy_addr));
return -EINVAL;
}
tp->phy_flags |= TG3_PHYFLG_IS_CONNECTED;
phy_attached_info(phydev);
return 0;
}
static void tg3_phy_start(struct tg3 *tp)
{
struct phy_device *phydev;
if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
return;
phydev = mdiobus_get_phy(tp->mdio_bus, tp->phy_addr);
if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) {
tp->phy_flags &= ~TG3_PHYFLG_IS_LOW_POWER;
phydev->speed = tp->link_config.speed;
phydev->duplex = tp->link_config.duplex;
phydev->autoneg = tp->link_config.autoneg;
ethtool_convert_legacy_u32_to_link_mode(
phydev->advertising, tp->link_config.advertising);
}
phy_start(phydev);
phy_start_aneg(phydev);
}
static void tg3_phy_stop(struct tg3 *tp)
{
if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
return;
phy_stop(mdiobus_get_phy(tp->mdio_bus, tp->phy_addr));
}
static void tg3_phy_fini(struct tg3 *tp)
{
if (tp->phy_flags & TG3_PHYFLG_IS_CONNECTED) {
phy_disconnect(mdiobus_get_phy(tp->mdio_bus, tp->phy_addr));
tp->phy_flags &= ~TG3_PHYFLG_IS_CONNECTED;
}
}
static int tg3_phy_set_extloopbk(struct tg3 *tp)
{
int err;
u32 val;
if (tp->phy_flags & TG3_PHYFLG_IS_FET)
return 0;
if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
/* Cannot do read-modify-write on 5401 */
err = tg3_phy_auxctl_write(tp,
MII_TG3_AUXCTL_SHDWSEL_AUXCTL,
MII_TG3_AUXCTL_ACTL_EXTLOOPBK |
0x4c20);
goto done;
}
err = tg3_phy_auxctl_read(tp,
MII_TG3_AUXCTL_SHDWSEL_AUXCTL, &val);
if (err)
return err;
val |= MII_TG3_AUXCTL_ACTL_EXTLOOPBK;
err = tg3_phy_auxctl_write(tp,
MII_TG3_AUXCTL_SHDWSEL_AUXCTL, val);
done:
return err;
}
static void tg3_phy_fet_toggle_apd(struct tg3 *tp, bool enable)
{
u32 phytest;
if (!tg3_readphy(tp, MII_TG3_FET_TEST, &phytest)) {
u32 phy;
tg3_writephy(tp, MII_TG3_FET_TEST,
phytest | MII_TG3_FET_SHADOW_EN);
if (!tg3_readphy(tp, MII_TG3_FET_SHDW_AUXSTAT2, &phy)) {
if (enable)
phy |= MII_TG3_FET_SHDW_AUXSTAT2_APD;
else
phy &= ~MII_TG3_FET_SHDW_AUXSTAT2_APD;
tg3_writephy(tp, MII_TG3_FET_SHDW_AUXSTAT2, phy);
}
tg3_writephy(tp, MII_TG3_FET_TEST, phytest);
}
}
static void tg3_phy_toggle_apd(struct tg3 *tp, bool enable)
{
u32 reg;
if (!tg3_flag(tp, 5705_PLUS) ||
(tg3_flag(tp, 5717_PLUS) &&
(tp->phy_flags & TG3_PHYFLG_MII_SERDES)))
return;
if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
tg3_phy_fet_toggle_apd(tp, enable);
return;
}
reg = MII_TG3_MISC_SHDW_SCR5_LPED |
MII_TG3_MISC_SHDW_SCR5_DLPTLM |
MII_TG3_MISC_SHDW_SCR5_SDTL |
MII_TG3_MISC_SHDW_SCR5_C125OE;
if (tg3_asic_rev(tp) != ASIC_REV_5784 || !enable)
reg |= MII_TG3_MISC_SHDW_SCR5_DLLAPD;
tg3_phy_shdw_write(tp, MII_TG3_MISC_SHDW_SCR5_SEL, reg);
reg = MII_TG3_MISC_SHDW_APD_WKTM_84MS;
if (enable)
reg |= MII_TG3_MISC_SHDW_APD_ENABLE;
tg3_phy_shdw_write(tp, MII_TG3_MISC_SHDW_APD_SEL, reg);
}
static void tg3_phy_toggle_automdix(struct tg3 *tp, bool enable)
{
u32 phy;
if (!tg3_flag(tp, 5705_PLUS) ||
(tp->phy_flags & TG3_PHYFLG_ANY_SERDES))
return;
if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
u32 ephy;
if (!tg3_readphy(tp, MII_TG3_FET_TEST, &ephy)) {
u32 reg = MII_TG3_FET_SHDW_MISCCTRL;
tg3_writephy(tp, MII_TG3_FET_TEST,
ephy | MII_TG3_FET_SHADOW_EN);
if (!tg3_readphy(tp, reg, &phy)) {
if (enable)
phy |= MII_TG3_FET_SHDW_MISCCTRL_MDIX;
else
phy &= ~MII_TG3_FET_SHDW_MISCCTRL_MDIX;
tg3_writephy(tp, reg, phy);
}
tg3_writephy(tp, MII_TG3_FET_TEST, ephy);
}
} else {
int ret;
ret = tg3_phy_auxctl_read(tp,
MII_TG3_AUXCTL_SHDWSEL_MISC, &phy);
if (!ret) {
if (enable)
phy |= MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
else
phy &= ~MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
tg3_phy_auxctl_write(tp,
MII_TG3_AUXCTL_SHDWSEL_MISC, phy);
}
}
}
static void tg3_phy_set_wirespeed(struct tg3 *tp)
{
int ret;
u32 val;
if (tp->phy_flags & TG3_PHYFLG_NO_ETH_WIRE_SPEED)
return;
ret = tg3_phy_auxctl_read(tp, MII_TG3_AUXCTL_SHDWSEL_MISC, &val);
if (!ret)
tg3_phy_auxctl_write(tp, MII_TG3_AUXCTL_SHDWSEL_MISC,
val | MII_TG3_AUXCTL_MISC_WIRESPD_EN);
}
static void tg3_phy_apply_otp(struct tg3 *tp)
{
u32 otp, phy;
if (!tp->phy_otp)
return;
otp = tp->phy_otp;
if (tg3_phy_toggle_auxctl_smdsp(tp, true))
return;
phy = ((otp & TG3_OTP_AGCTGT_MASK) >> TG3_OTP_AGCTGT_SHIFT);
phy |= MII_TG3_DSP_TAP1_AGCTGT_DFLT;
tg3_phydsp_write(tp, MII_TG3_DSP_TAP1, phy);
phy = ((otp & TG3_OTP_HPFFLTR_MASK) >> TG3_OTP_HPFFLTR_SHIFT) |
((otp & TG3_OTP_HPFOVER_MASK) >> TG3_OTP_HPFOVER_SHIFT);
tg3_phydsp_write(tp, MII_TG3_DSP_AADJ1CH0, phy);
phy = ((otp & TG3_OTP_LPFDIS_MASK) >> TG3_OTP_LPFDIS_SHIFT);
phy |= MII_TG3_DSP_AADJ1CH3_ADCCKADJ;
tg3_phydsp_write(tp, MII_TG3_DSP_AADJ1CH3, phy);
phy = ((otp & TG3_OTP_VDAC_MASK) >> TG3_OTP_VDAC_SHIFT);
tg3_phydsp_write(tp, MII_TG3_DSP_EXP75, phy);
phy = ((otp & TG3_OTP_10BTAMP_MASK) >> TG3_OTP_10BTAMP_SHIFT);
tg3_phydsp_write(tp, MII_TG3_DSP_EXP96, phy);
phy = ((otp & TG3_OTP_ROFF_MASK) >> TG3_OTP_ROFF_SHIFT) |
((otp & TG3_OTP_RCOFF_MASK) >> TG3_OTP_RCOFF_SHIFT);
tg3_phydsp_write(tp, MII_TG3_DSP_EXP97, phy);
tg3_phy_toggle_auxctl_smdsp(tp, false);
}
static void tg3_eee_pull_config(struct tg3 *tp, struct ethtool_keee *eee)
{
u32 val;
struct ethtool_keee *dest = &tp->eee;
if (!(tp->phy_flags & TG3_PHYFLG_EEE_CAP))
return;
if (eee)
dest = eee;
if (tg3_phy_cl45_read(tp, MDIO_MMD_AN, TG3_CL45_D7_EEERES_STAT, &val))
return;
/* Pull eee_active */
if (val == TG3_CL45_D7_EEERES_STAT_LP_1000T ||
val == TG3_CL45_D7_EEERES_STAT_LP_100TX) {
dest->eee_active = 1;
} else
dest->eee_active = 0;
/* Pull lp advertised settings */
if (tg3_phy_cl45_read(tp, MDIO_MMD_AN, MDIO_AN_EEE_LPABLE, &val))
return;
mii_eee_cap1_mod_linkmode_t(dest->lp_advertised, val);
/* Pull advertised and eee_enabled settings */
if (tg3_phy_cl45_read(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV, &val))
return;
dest->eee_enabled = !!val;
mii_eee_cap1_mod_linkmode_t(dest->advertised, val);
/* Pull tx_lpi_enabled */
val = tr32(TG3_CPMU_EEE_MODE);
dest->tx_lpi_enabled = !!(val & TG3_CPMU_EEEMD_LPI_IN_TX);
/* Pull lpi timer value */
dest->tx_lpi_timer = tr32(TG3_CPMU_EEE_DBTMR1) & 0xffff;
}
static void tg3_phy_eee_adjust(struct tg3 *tp, bool current_link_up)
{
u32 val;
if (!(tp->phy_flags & TG3_PHYFLG_EEE_CAP))
return;
tp->setlpicnt = 0;
if (tp->link_config.autoneg == AUTONEG_ENABLE &&
current_link_up &&
tp->link_config.active_duplex == DUPLEX_FULL &&
(tp->link_config.active_speed == SPEED_100 ||
tp->link_config.active_speed == SPEED_1000)) {
u32 eeectl;
if (tp->link_config.active_speed == SPEED_1000)
eeectl = TG3_CPMU_EEE_CTRL_EXIT_16_5_US;
else
eeectl = TG3_CPMU_EEE_CTRL_EXIT_36_US;
tw32(TG3_CPMU_EEE_CTRL, eeectl);
tg3_eee_pull_config(tp, NULL);
if (tp->eee.eee_active)
tp->setlpicnt = 2;
}
if (!tp->setlpicnt) {
if (current_link_up &&
!tg3_phy_toggle_auxctl_smdsp(tp, true)) {
tg3_phydsp_write(tp, MII_TG3_DSP_TAP26, 0x0000);
tg3_phy_toggle_auxctl_smdsp(tp, false);
}
val = tr32(TG3_CPMU_EEE_MODE);
tw32(TG3_CPMU_EEE_MODE, val & ~TG3_CPMU_EEEMD_LPI_ENABLE);
}
}
static void tg3_phy_eee_enable(struct tg3 *tp)
{
u32 val;
if (tp->link_config.active_speed == SPEED_1000 &&
(tg3_asic_rev(tp) == ASIC_REV_5717 ||
tg3_asic_rev(tp) == ASIC_REV_5719 ||
tg3_flag(tp, 57765_CLASS)) &&
!tg3_phy_toggle_auxctl_smdsp(tp, true)) {
val = MII_TG3_DSP_TAP26_ALNOKO |
MII_TG3_DSP_TAP26_RMRXSTO;
tg3_phydsp_write(tp, MII_TG3_DSP_TAP26, val);
tg3_phy_toggle_auxctl_smdsp(tp, false);
}
val = tr32(TG3_CPMU_EEE_MODE);
tw32(TG3_CPMU_EEE_MODE, val | TG3_CPMU_EEEMD_LPI_ENABLE);
}
static int tg3_wait_macro_done(struct tg3 *tp)
{
int limit = 100;
while (limit--) {
u32 tmp32;
if (!tg3_readphy(tp, MII_TG3_DSP_CONTROL, &tmp32)) {
if ((tmp32 & 0x1000) == 0)
break;
}
}
if (limit < 0)
return -EBUSY;
return 0;
}
static int tg3_phy_write_and_check_testpat(struct tg3 *tp, int *resetp)
{
static const u32 test_pat[4][6] = {
{ 0x00005555, 0x00000005, 0x00002aaa, 0x0000000a, 0x00003456, 0x00000003 },
{ 0x00002aaa, 0x0000000a, 0x00003333, 0x00000003, 0x0000789a, 0x00000005 },
{ 0x00005a5a, 0x00000005, 0x00002a6a, 0x0000000a, 0x00001bcd, 0x00000003 },
{ 0x00002a5a, 0x0000000a, 0x000033c3, 0x00000003, 0x00002ef1, 0x00000005 }
};
int chan;
for (chan = 0; chan < 4; chan++) {
int i;
tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
(chan * 0x2000) | 0x0200);
tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0002);
for (i = 0; i < 6; i++)
tg3_writephy(tp, MII_TG3_DSP_RW_PORT,
test_pat[chan][i]);
tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0202);
if (tg3_wait_macro_done(tp)) {
*resetp = 1;
return -EBUSY;
}
tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
(chan * 0x2000) | 0x0200);
tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0082);
if (tg3_wait_macro_done(tp)) {
*resetp = 1;
return -EBUSY;
}
tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0802);
if (tg3_wait_macro_done(tp)) {
*resetp = 1;
return -EBUSY;
}
for (i = 0; i < 6; i += 2) {
u32 low, high;
if (tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &low) ||
tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &high) ||
tg3_wait_macro_done(tp)) {
*resetp = 1;
return -EBUSY;
}
low &= 0x7fff;
high &= 0x000f;
if (low != test_pat[chan][i] ||
high != test_pat[chan][i+1]) {
tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000b);
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x4001);
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x4005);
return -EBUSY;
}
}
}
return 0;
}
static int tg3_phy_reset_chanpat(struct tg3 *tp)
{
int chan;
for (chan = 0; chan < 4; chan++) {
int i;
tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
(chan * 0x2000) | 0x0200);
tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0002);
for (i = 0; i < 6; i++)
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x000);
tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0202);
if (tg3_wait_macro_done(tp))
return -EBUSY;
}
return 0;
}
static int tg3_phy_reset_5703_4_5(struct tg3 *tp)
{
u32 reg32, phy9_orig;
int retries, do_phy_reset, err;
retries = 10;
do_phy_reset = 1;
do {
if (do_phy_reset) {
err = tg3_bmcr_reset(tp);
if (err)
return err;
do_phy_reset = 0;
}
/* Disable transmitter and interrupt. */
if (tg3_readphy(tp, MII_TG3_EXT_CTRL, &reg32))
continue;
reg32 |= 0x3000;
tg3_writephy(tp, MII_TG3_EXT_CTRL, reg32);
/* Set full-duplex, 1000 mbps. */
tg3_writephy(tp, MII_BMCR,
BMCR_FULLDPLX | BMCR_SPEED1000);
/* Set to master mode. */
if (tg3_readphy(tp, MII_CTRL1000, &phy9_orig))
continue;
tg3_writephy(tp, MII_CTRL1000,
CTL1000_AS_MASTER | CTL1000_ENABLE_MASTER);
err = tg3_phy_toggle_auxctl_smdsp(tp, true);
if (err)
return err;
/* Block the PHY control access. */
tg3_phydsp_write(tp, 0x8005, 0x0800);
err = tg3_phy_write_and_check_testpat(tp, &do_phy_reset);
if (!err)
break;
} while (--retries);
err = tg3_phy_reset_chanpat(tp);
if (err)
return err;
tg3_phydsp_write(tp, 0x8005, 0x0000);
tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8200);
tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0000);
tg3_phy_toggle_auxctl_smdsp(tp, false);
tg3_writephy(tp, MII_CTRL1000, phy9_orig);
err = tg3_readphy(tp, MII_TG3_EXT_CTRL, &reg32);
if (err)
return err;
reg32 &= ~0x3000;
tg3_writephy(tp, MII_TG3_EXT_CTRL, reg32);
return 0;
}
static void tg3_carrier_off(struct tg3 *tp)
{
netif_carrier_off(tp->dev);
tp->link_up = false;
}
static void tg3_warn_mgmt_link_flap(struct tg3 *tp)
{
if (tg3_flag(tp, ENABLE_ASF))
netdev_warn(tp->dev,
"Management side-band traffic will be interrupted during phy settings change\n");
}
/* This will reset the tigon3 PHY if there is no valid
* link unless the FORCE argument is non-zero.
*/
static int tg3_phy_reset(struct tg3 *tp)
{
u32 val, cpmuctrl;
int err;
if (tg3_asic_rev(tp) == ASIC_REV_5906) {
val = tr32(GRC_MISC_CFG);
tw32_f(GRC_MISC_CFG, val & ~GRC_MISC_CFG_EPHY_IDDQ);
udelay(40);
}
err = tg3_readphy(tp, MII_BMSR, &val);
err |= tg3_readphy(tp, MII_BMSR, &val);
if (err != 0)
return -EBUSY;
if (netif_running(tp->dev) && tp->link_up) {
netif_carrier_off(tp->dev);
tg3_link_report(tp);
}
if (tg3_asic_rev(tp) == ASIC_REV_5703 ||
tg3_asic_rev(tp) == ASIC_REV_5704 ||
tg3_asic_rev(tp) == ASIC_REV_5705) {
err = tg3_phy_reset_5703_4_5(tp);
if (err)
return err;
goto out;
}
cpmuctrl = 0;
if (tg3_asic_rev(tp) == ASIC_REV_5784 &&
tg3_chip_rev(tp) != CHIPREV_5784_AX) {
cpmuctrl = tr32(TG3_CPMU_CTRL);
if (cpmuctrl & CPMU_CTRL_GPHY_10MB_RXONLY)
tw32(TG3_CPMU_CTRL,
cpmuctrl & ~CPMU_CTRL_GPHY_10MB_RXONLY);
}
err = tg3_bmcr_reset(tp);
if (err)
return err;
if (cpmuctrl & CPMU_CTRL_GPHY_10MB_RXONLY) {
val = MII_TG3_DSP_EXP8_AEDW | MII_TG3_DSP_EXP8_REJ2MHz;
tg3_phydsp_write(tp, MII_TG3_DSP_EXP8, val);
tw32(TG3_CPMU_CTRL, cpmuctrl);
}
if (tg3_chip_rev(tp) == CHIPREV_5784_AX ||
tg3_chip_rev(tp) == CHIPREV_5761_AX) {
val = tr32(TG3_CPMU_LSPD_1000MB_CLK);
if ((val & CPMU_LSPD_1000MB_MACCLK_MASK) ==
CPMU_LSPD_1000MB_MACCLK_12_5) {
val &= ~CPMU_LSPD_1000MB_MACCLK_MASK;
udelay(40);
tw32_f(TG3_CPMU_LSPD_1000MB_CLK, val);
}
}
if (tg3_flag(tp, 5717_PLUS) &&
(tp->phy_flags & TG3_PHYFLG_MII_SERDES))
return 0;
tg3_phy_apply_otp(tp);
if (tp->phy_flags & TG3_PHYFLG_ENABLE_APD)
tg3_phy_toggle_apd(tp, true);
else
tg3_phy_toggle_apd(tp, false);
out:
if ((tp->phy_flags & TG3_PHYFLG_ADC_BUG) &&
!tg3_phy_toggle_auxctl_smdsp(tp, true)) {
tg3_phydsp_write(tp, 0x201f, 0x2aaa);
tg3_phydsp_write(tp, 0x000a, 0x0323);
tg3_phy_toggle_auxctl_smdsp(tp, false);
}
if (tp->phy_flags & TG3_PHYFLG_5704_A0_BUG) {
tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8d68);
tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8d68);
}
if (tp->phy_flags & TG3_PHYFLG_BER_BUG) {
if (!tg3_phy_toggle_auxctl_smdsp(tp, true)) {
tg3_phydsp_write(tp, 0x000a, 0x310b);
tg3_phydsp_write(tp, 0x201f, 0x9506);
tg3_phydsp_write(tp, 0x401f, 0x14e2);
tg3_phy_toggle_auxctl_smdsp(tp, false);
}
} else if (tp->phy_flags & TG3_PHYFLG_JITTER_BUG) {
if (!tg3_phy_toggle_auxctl_smdsp(tp, true)) {
tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000a);
if (tp->phy_flags & TG3_PHYFLG_ADJUST_TRIM) {
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x110b);
tg3_writephy(tp, MII_TG3_TEST1,
MII_TG3_TEST1_TRIM_EN | 0x4);
} else
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x010b);
tg3_phy_toggle_auxctl_smdsp(tp, false);
}
}
/* Set Extended packet length bit (bit 14) on all chips that */
/* support jumbo frames */
if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
/* Cannot do read-modify-write on 5401 */
tg3_phy_auxctl_write(tp, MII_TG3_AUXCTL_SHDWSEL_AUXCTL, 0x4c20);
} else if (tg3_flag(tp, JUMBO_CAPABLE)) {
/* Set bit 14 with read-modify-write to preserve other bits */
err = tg3_phy_auxctl_read(tp,
MII_TG3_AUXCTL_SHDWSEL_AUXCTL, &val);
if (!err)
tg3_phy_auxctl_write(tp, MII_TG3_AUXCTL_SHDWSEL_AUXCTL,
val | MII_TG3_AUXCTL_ACTL_EXTPKTLEN);
}
/* Set phy register 0x10 bit 0 to high fifo elasticity to support
* jumbo frames transmission.
*/
if (tg3_flag(tp, JUMBO_CAPABLE)) {
if (!tg3_readphy(tp, MII_TG3_EXT_CTRL, &val))
tg3_writephy(tp, MII_TG3_EXT_CTRL,
val | MII_TG3_EXT_CTRL_FIFO_ELASTIC);
}
if (tg3_asic_rev(tp) == ASIC_REV_5906) {
/* adjust output voltage */
tg3_writephy(tp, MII_TG3_FET_PTEST, 0x12);
}
if (tg3_chip_rev_id(tp) == CHIPREV_ID_5762_A0)
tg3_phydsp_write(tp, 0xffb, 0x4000);
tg3_phy_toggle_automdix(tp, true);
tg3_phy_set_wirespeed(tp);
return 0;
}
#define TG3_GPIO_MSG_DRVR_PRES 0x00000001
#define TG3_GPIO_MSG_NEED_VAUX 0x00000002
#define TG3_GPIO_MSG_MASK (TG3_GPIO_MSG_DRVR_PRES | \
TG3_GPIO_MSG_NEED_VAUX)
#define TG3_GPIO_MSG_ALL_DRVR_PRES_MASK \
((TG3_GPIO_MSG_DRVR_PRES << 0) | \
(TG3_GPIO_MSG_DRVR_PRES << 4) | \
(TG3_GPIO_MSG_DRVR_PRES << 8) | \
(TG3_GPIO_MSG_DRVR_PRES << 12))
#define TG3_GPIO_MSG_ALL_NEED_VAUX_MASK \
((TG3_GPIO_MSG_NEED_VAUX << 0) | \
(TG3_GPIO_MSG_NEED_VAUX << 4) | \
(TG3_GPIO_MSG_NEED_VAUX << 8) | \
(TG3_GPIO_MSG_NEED_VAUX << 12))
static inline u32 tg3_set_function_status(struct tg3 *tp, u32 newstat)
{
u32 status, shift;
if (tg3_asic_rev(tp) == ASIC_REV_5717 ||
tg3_asic_rev(tp) == ASIC_REV_5719)
status = tg3_ape_read32(tp, TG3_APE_GPIO_MSG);
else
status = tr32(TG3_CPMU_DRV_STATUS);
shift = TG3_APE_GPIO_MSG_SHIFT + 4 * tp->pci_fn;
status &= ~(TG3_GPIO_MSG_MASK << shift);
status |= (newstat << shift);
if (tg3_asic_rev(tp) == ASIC_REV_5717 ||
tg3_asic_rev(tp) == ASIC_REV_5719)
tg3_ape_write32(tp, TG3_APE_GPIO_MSG, status);
else
tw32(TG3_CPMU_DRV_STATUS, status);
return status >> TG3_APE_GPIO_MSG_SHIFT;
}
static inline int tg3_pwrsrc_switch_to_vmain(struct tg3 *tp)
{
if (!tg3_flag(tp, IS_NIC))
return 0;
if (tg3_asic_rev(tp) == ASIC_REV_5717 ||
tg3_asic_rev(tp) == ASIC_REV_5719 ||
tg3_asic_rev(tp) == ASIC_REV_5720) {
if (tg3_ape_lock(tp, TG3_APE_LOCK_GPIO))
return -EIO;
tg3_set_function_status(tp, TG3_GPIO_MSG_DRVR_PRES);
tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl,
TG3_GRC_LCLCTL_PWRSW_DELAY);
tg3_ape_unlock(tp, TG3_APE_LOCK_GPIO);
} else {
tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl,
TG3_GRC_LCLCTL_PWRSW_DELAY);
}
return 0;
}
static void tg3_pwrsrc_die_with_vmain(struct tg3 *tp)
{
u32 grc_local_ctrl;
if (!tg3_flag(tp, IS_NIC) ||
tg3_asic_rev(tp) == ASIC_REV_5700 ||
tg3_asic_rev(tp) == ASIC_REV_5701)
return;
grc_local_ctrl = tp->grc_local_ctrl | GRC_LCLCTRL_GPIO_OE1;
tw32_wait_f(GRC_LOCAL_CTRL,
grc_local_ctrl | GRC_LCLCTRL_GPIO_OUTPUT1,
TG3_GRC_LCLCTL_PWRSW_DELAY);
tw32_wait_f(GRC_LOCAL_CTRL,
grc_local_ctrl,
TG3_GRC_LCLCTL_PWRSW_DELAY);
tw32_wait_f(GRC_LOCAL_CTRL,
grc_local_ctrl | GRC_LCLCTRL_GPIO_OUTPUT1,
TG3_GRC_LCLCTL_PWRSW_DELAY);
}
static void tg3_pwrsrc_switch_to_vaux(struct tg3 *tp)
{
if (!tg3_flag(tp, IS_NIC))
return;
if (tg3_asic_rev(tp) == ASIC_REV_5700 ||
tg3_asic_rev(tp) == ASIC_REV_5701) {
tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
(GRC_LCLCTRL_GPIO_OE0 |
GRC_LCLCTRL_GPIO_OE1 |
GRC_LCLCTRL_GPIO_OE2 |
GRC_LCLCTRL_GPIO_OUTPUT0 |
GRC_LCLCTRL_GPIO_OUTPUT1),
TG3_GRC_LCLCTL_PWRSW_DELAY);
} else if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761 ||
tp->pdev->device == TG3PCI_DEVICE_TIGON3_5761S) {
/* The 5761 non-e device swaps GPIO 0 and GPIO 2. */
u32 grc_local_ctrl = GRC_LCLCTRL_GPIO_OE0 |
GRC_LCLCTRL_GPIO_OE1 |
GRC_LCLCTRL_GPIO_OE2 |
GRC_LCLCTRL_GPIO_OUTPUT0 |
GRC_LCLCTRL_GPIO_OUTPUT1 |
tp->grc_local_ctrl;
tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl,
TG3_GRC_LCLCTL_PWRSW_DELAY);
grc_local_ctrl |= GRC_LCLCTRL_GPIO_OUTPUT2;
tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl,
TG3_GRC_LCLCTL_PWRSW_DELAY);
grc_local_ctrl &= ~GRC_LCLCTRL_GPIO_OUTPUT0;
tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl,
TG3_GRC_LCLCTL_PWRSW_DELAY);
} else {
u32 no_gpio2;
u32 grc_local_ctrl = 0;
/* Workaround to prevent overdrawing Amps. */
if (tg3_asic_rev(tp) == ASIC_REV_5714) {
grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE3;
tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
grc_local_ctrl,
TG3_GRC_LCLCTL_PWRSW_DELAY);
}
/* On 5753 and variants, GPIO2 cannot be used. */
no_gpio2 = tp->nic_sram_data_cfg &
NIC_SRAM_DATA_CFG_NO_GPIO2;
grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE0 |
GRC_LCLCTRL_GPIO_OE1 |
GRC_LCLCTRL_GPIO_OE2 |
GRC_LCLCTRL_GPIO_OUTPUT1 |
GRC_LCLCTRL_GPIO_OUTPUT2;
if (no_gpio2) {
grc_local_ctrl &= ~(GRC_LCLCTRL_GPIO_OE2 |
GRC_LCLCTRL_GPIO_OUTPUT2);
}
tw32_wait_f(GRC_LOCAL_CTRL,
tp->grc_local_ctrl | grc_local_ctrl,
TG3_GRC_LCLCTL_PWRSW_DELAY);
grc_local_ctrl |= GRC_LCLCTRL_GPIO_OUTPUT0;
tw32_wait_f(GRC_LOCAL_CTRL,
tp->grc_local_ctrl | grc_local_ctrl,
TG3_GRC_LCLCTL_PWRSW_DELAY);
if (!no_gpio2) {
grc_local_ctrl &= ~GRC_LCLCTRL_GPIO_OUTPUT2;
tw32_wait_f(GRC_LOCAL_CTRL,
tp->grc_local_ctrl | grc_local_ctrl,
TG3_GRC_LCLCTL_PWRSW_DELAY);
}
}
}
static void tg3_frob_aux_power_5717(struct tg3 *tp, bool wol_enable)
{
u32 msg = 0;
/* Serialize power state transitions */
if (tg3_ape_lock(tp, TG3_APE_LOCK_GPIO))
return;
if (tg3_flag(tp, ENABLE_ASF) || tg3_flag(tp, ENABLE_APE) || wol_enable)
msg = TG3_GPIO_MSG_NEED_VAUX;
msg = tg3_set_function_status(tp, msg);
if (msg & TG3_GPIO_MSG_ALL_DRVR_PRES_MASK)
goto done;
if (msg & TG3_GPIO_MSG_ALL_NEED_VAUX_MASK)
tg3_pwrsrc_switch_to_vaux(tp);
else
tg3_pwrsrc_die_with_vmain(tp);
done:
tg3_ape_unlock(tp, TG3_APE_LOCK_GPIO);
}
static void tg3_frob_aux_power(struct tg3 *tp, bool include_wol)
{
bool need_vaux = false;
/* The GPIOs do something completely different on 57765. */
if (!tg3_flag(tp, IS_NIC) || tg3_flag(tp, 57765_CLASS))
return;
if (tg3_asic_rev(tp) == ASIC_REV_5717 ||
tg3_asic_rev(tp) == ASIC_REV_5719 ||
tg3_asic_rev(tp) == ASIC_REV_5720) {
tg3_frob_aux_power_5717(tp, include_wol ?
tg3_flag(tp, WOL_ENABLE) != 0 : 0);
return;
}
if (tp->pdev_peer && tp->pdev_peer != tp->pdev) {
struct net_device *dev_peer;
dev_peer = pci_get_drvdata(tp->pdev_peer);
/* remove_one() may have been run on the peer. */
if (dev_peer) {
struct tg3 *tp_peer = netdev_priv(dev_peer);
if (tg3_flag(tp_peer, INIT_COMPLETE))
return;
if ((include_wol && tg3_flag(tp_peer, WOL_ENABLE)) ||
tg3_flag(tp_peer, ENABLE_ASF))
need_vaux = true;
}
}
if ((include_wol && tg3_flag(tp, WOL_ENABLE)) ||
tg3_flag(tp, ENABLE_ASF))
need_vaux = true;
if (need_vaux)
tg3_pwrsrc_switch_to_vaux(tp);
else
tg3_pwrsrc_die_with_vmain(tp);
}
static int tg3_5700_link_polarity(struct tg3 *tp, u32 speed)
{
if (tp->led_ctrl == LED_CTRL_MODE_PHY_2)
return 1;
else if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5411) {
if (speed != SPEED_10)
return 1;
} else if (speed == SPEED_10)
return 1;
return 0;
}
static bool tg3_phy_power_bug(struct tg3 *tp)
{
switch (tg3_asic_rev(tp)) {
case ASIC_REV_5700:
case ASIC_REV_5704:
return true;
case ASIC_REV_5780:
if (tp->phy_flags & TG3_PHYFLG_MII_SERDES)
return true;
return false;
case ASIC_REV_5717:
if (!tp->pci_fn)
return true;
return false;
case ASIC_REV_5719:
case ASIC_REV_5720:
if ((tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
!tp->pci_fn)
return true;
return false;
}
return false;
}
static bool tg3_phy_led_bug(struct tg3 *tp)
{
switch (tg3_asic_rev(tp)) {
case ASIC_REV_5719:
case ASIC_REV_5720:
if ((tp->phy_flags & TG3_PHYFLG_MII_SERDES) &&
!tp->pci_fn)
return true;
return false;
}
return false;
}
static void tg3_power_down_phy(struct tg3 *tp, bool do_low_power)
{
u32 val;
if (tp->phy_flags & TG3_PHYFLG_KEEP_LINK_ON_PWRDN)
return;
if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
if (tg3_asic_rev(tp) == ASIC_REV_5704) {
u32 sg_dig_ctrl = tr32(SG_DIG_CTRL);
u32 serdes_cfg = tr32(MAC_SERDES_CFG);
sg_dig_ctrl |=
SG_DIG_USING_HW_AUTONEG | SG_DIG_SOFT_RESET;
tw32(SG_DIG_CTRL, sg_dig_ctrl);
tw32(MAC_SERDES_CFG, serdes_cfg | (1 << 15));
}
return;