1 // SPDX-License-Identifier: GPL-2.0-only
3 * r8169.c: RealTek 8169/8168/8101 ethernet driver.
5 * Copyright (c) 2002 ShuChen <shuchen@realtek.com.tw>
6 * Copyright (c) 2003 - 2007 Francois Romieu <romieu@fr.zoreil.com>
7 * Copyright (c) a lot of people too. Please respect their work.
9 * See MAINTAINERS file for support contact information.
12 #include <linux/module.h>
13 #include <linux/pci.h>
14 #include <linux/netdevice.h>
15 #include <linux/etherdevice.h>
16 #include <linux/clk.h>
17 #include <linux/delay.h>
18 #include <linux/ethtool.h>
19 #include <linux/phy.h>
20 #include <linux/if_vlan.h>
24 #include <linux/tcp.h>
25 #include <linux/interrupt.h>
26 #include <linux/dma-mapping.h>
27 #include <linux/pm_runtime.h>
28 #include <linux/bitfield.h>
29 #include <linux/prefetch.h>
30 #include <linux/ipv6.h>
31 #include <net/ip6_checksum.h>
34 #include "r8169_firmware.h"
36 #define MODULENAME "r8169"
38 #define FIRMWARE_8168D_1 "rtl_nic/rtl8168d-1.fw"
39 #define FIRMWARE_8168D_2 "rtl_nic/rtl8168d-2.fw"
40 #define FIRMWARE_8168E_1 "rtl_nic/rtl8168e-1.fw"
41 #define FIRMWARE_8168E_2 "rtl_nic/rtl8168e-2.fw"
42 #define FIRMWARE_8168E_3 "rtl_nic/rtl8168e-3.fw"
43 #define FIRMWARE_8168F_1 "rtl_nic/rtl8168f-1.fw"
44 #define FIRMWARE_8168F_2 "rtl_nic/rtl8168f-2.fw"
45 #define FIRMWARE_8105E_1 "rtl_nic/rtl8105e-1.fw"
46 #define FIRMWARE_8402_1 "rtl_nic/rtl8402-1.fw"
47 #define FIRMWARE_8411_1 "rtl_nic/rtl8411-1.fw"
48 #define FIRMWARE_8411_2 "rtl_nic/rtl8411-2.fw"
49 #define FIRMWARE_8106E_1 "rtl_nic/rtl8106e-1.fw"
50 #define FIRMWARE_8106E_2 "rtl_nic/rtl8106e-2.fw"
51 #define FIRMWARE_8168G_2 "rtl_nic/rtl8168g-2.fw"
52 #define FIRMWARE_8168G_3 "rtl_nic/rtl8168g-3.fw"
53 #define FIRMWARE_8168H_1 "rtl_nic/rtl8168h-1.fw"
54 #define FIRMWARE_8168H_2 "rtl_nic/rtl8168h-2.fw"
55 #define FIRMWARE_8168FP_3 "rtl_nic/rtl8168fp-3.fw"
56 #define FIRMWARE_8107E_1 "rtl_nic/rtl8107e-1.fw"
57 #define FIRMWARE_8107E_2 "rtl_nic/rtl8107e-2.fw"
58 #define FIRMWARE_8125A_3 "rtl_nic/rtl8125a-3.fw"
60 /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
61 The RTL chips use a 64 element hash table based on the Ethernet CRC. */
62 #define MC_FILTER_LIMIT 32
64 #define TX_DMA_BURST 7 /* Maximum PCI burst, '7' is unlimited */
65 #define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */
67 #define R8169_REGS_SIZE 256
68 #define R8169_RX_BUF_SIZE (SZ_16K - 1)
69 #define NUM_TX_DESC 64 /* Number of Tx descriptor registers */
70 #define NUM_RX_DESC 256U /* Number of Rx descriptor registers */
71 #define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc))
72 #define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc))
74 #define OCP_STD_PHY_BASE 0xa400
76 #define RTL_CFG_NO_GBIT 1
78 /* write/read MMIO register */
79 #define RTL_W8(tp, reg, val8) writeb((val8), tp->mmio_addr + (reg))
80 #define RTL_W16(tp, reg, val16) writew((val16), tp->mmio_addr + (reg))
81 #define RTL_W32(tp, reg, val32) writel((val32), tp->mmio_addr + (reg))
82 #define RTL_R8(tp, reg) readb(tp->mmio_addr + (reg))
83 #define RTL_R16(tp, reg) readw(tp->mmio_addr + (reg))
84 #define RTL_R32(tp, reg) readl(tp->mmio_addr + (reg))
86 #define JUMBO_4K (4 * SZ_1K - VLAN_ETH_HLEN - ETH_FCS_LEN)
87 #define JUMBO_6K (6 * SZ_1K - VLAN_ETH_HLEN - ETH_FCS_LEN)
88 #define JUMBO_7K (7 * SZ_1K - VLAN_ETH_HLEN - ETH_FCS_LEN)
89 #define JUMBO_9K (9 * SZ_1K - VLAN_ETH_HLEN - ETH_FCS_LEN)
94 } rtl_chip_infos[] = {
96 [RTL_GIGA_MAC_VER_02] = {"RTL8169s" },
97 [RTL_GIGA_MAC_VER_03] = {"RTL8110s" },
98 [RTL_GIGA_MAC_VER_04] = {"RTL8169sb/8110sb" },
99 [RTL_GIGA_MAC_VER_05] = {"RTL8169sc/8110sc" },
100 [RTL_GIGA_MAC_VER_06] = {"RTL8169sc/8110sc" },
102 [RTL_GIGA_MAC_VER_07] = {"RTL8102e" },
103 [RTL_GIGA_MAC_VER_08] = {"RTL8102e" },
104 [RTL_GIGA_MAC_VER_09] = {"RTL8102e/RTL8103e" },
105 [RTL_GIGA_MAC_VER_10] = {"RTL8101e" },
106 [RTL_GIGA_MAC_VER_11] = {"RTL8168b/8111b" },
107 [RTL_GIGA_MAC_VER_12] = {"RTL8168b/8111b" },
108 [RTL_GIGA_MAC_VER_13] = {"RTL8101e" },
109 [RTL_GIGA_MAC_VER_14] = {"RTL8100e" },
110 [RTL_GIGA_MAC_VER_15] = {"RTL8100e" },
111 [RTL_GIGA_MAC_VER_16] = {"RTL8101e" },
112 [RTL_GIGA_MAC_VER_17] = {"RTL8168b/8111b" },
113 [RTL_GIGA_MAC_VER_18] = {"RTL8168cp/8111cp" },
114 [RTL_GIGA_MAC_VER_19] = {"RTL8168c/8111c" },
115 [RTL_GIGA_MAC_VER_20] = {"RTL8168c/8111c" },
116 [RTL_GIGA_MAC_VER_21] = {"RTL8168c/8111c" },
117 [RTL_GIGA_MAC_VER_22] = {"RTL8168c/8111c" },
118 [RTL_GIGA_MAC_VER_23] = {"RTL8168cp/8111cp" },
119 [RTL_GIGA_MAC_VER_24] = {"RTL8168cp/8111cp" },
120 [RTL_GIGA_MAC_VER_25] = {"RTL8168d/8111d", FIRMWARE_8168D_1},
121 [RTL_GIGA_MAC_VER_26] = {"RTL8168d/8111d", FIRMWARE_8168D_2},
122 [RTL_GIGA_MAC_VER_27] = {"RTL8168dp/8111dp" },
123 [RTL_GIGA_MAC_VER_28] = {"RTL8168dp/8111dp" },
124 [RTL_GIGA_MAC_VER_29] = {"RTL8105e", FIRMWARE_8105E_1},
125 [RTL_GIGA_MAC_VER_30] = {"RTL8105e", FIRMWARE_8105E_1},
126 [RTL_GIGA_MAC_VER_31] = {"RTL8168dp/8111dp" },
127 [RTL_GIGA_MAC_VER_32] = {"RTL8168e/8111e", FIRMWARE_8168E_1},
128 [RTL_GIGA_MAC_VER_33] = {"RTL8168e/8111e", FIRMWARE_8168E_2},
129 [RTL_GIGA_MAC_VER_34] = {"RTL8168evl/8111evl", FIRMWARE_8168E_3},
130 [RTL_GIGA_MAC_VER_35] = {"RTL8168f/8111f", FIRMWARE_8168F_1},
131 [RTL_GIGA_MAC_VER_36] = {"RTL8168f/8111f", FIRMWARE_8168F_2},
132 [RTL_GIGA_MAC_VER_37] = {"RTL8402", FIRMWARE_8402_1 },
133 [RTL_GIGA_MAC_VER_38] = {"RTL8411", FIRMWARE_8411_1 },
134 [RTL_GIGA_MAC_VER_39] = {"RTL8106e", FIRMWARE_8106E_1},
135 [RTL_GIGA_MAC_VER_40] = {"RTL8168g/8111g", FIRMWARE_8168G_2},
136 [RTL_GIGA_MAC_VER_41] = {"RTL8168g/8111g" },
137 [RTL_GIGA_MAC_VER_42] = {"RTL8168gu/8111gu", FIRMWARE_8168G_3},
138 [RTL_GIGA_MAC_VER_43] = {"RTL8106eus", FIRMWARE_8106E_2},
139 [RTL_GIGA_MAC_VER_44] = {"RTL8411b", FIRMWARE_8411_2 },
140 [RTL_GIGA_MAC_VER_45] = {"RTL8168h/8111h", FIRMWARE_8168H_1},
141 [RTL_GIGA_MAC_VER_46] = {"RTL8168h/8111h", FIRMWARE_8168H_2},
142 [RTL_GIGA_MAC_VER_47] = {"RTL8107e", FIRMWARE_8107E_1},
143 [RTL_GIGA_MAC_VER_48] = {"RTL8107e", FIRMWARE_8107E_2},
144 [RTL_GIGA_MAC_VER_49] = {"RTL8168ep/8111ep" },
145 [RTL_GIGA_MAC_VER_50] = {"RTL8168ep/8111ep" },
146 [RTL_GIGA_MAC_VER_51] = {"RTL8168ep/8111ep" },
147 [RTL_GIGA_MAC_VER_52] = {"RTL8168fp/RTL8117", FIRMWARE_8168FP_3},
148 [RTL_GIGA_MAC_VER_60] = {"RTL8125" },
149 [RTL_GIGA_MAC_VER_61] = {"RTL8125", FIRMWARE_8125A_3},
152 static const struct pci_device_id rtl8169_pci_tbl[] = {
153 { PCI_VDEVICE(REALTEK, 0x2502) },
154 { PCI_VDEVICE(REALTEK, 0x2600) },
155 { PCI_VDEVICE(REALTEK, 0x8129) },
156 { PCI_VDEVICE(REALTEK, 0x8136), RTL_CFG_NO_GBIT },
157 { PCI_VDEVICE(REALTEK, 0x8161) },
158 { PCI_VDEVICE(REALTEK, 0x8167) },
159 { PCI_VDEVICE(REALTEK, 0x8168) },
160 { PCI_VDEVICE(NCUBE, 0x8168) },
161 { PCI_VDEVICE(REALTEK, 0x8169) },
162 { PCI_VENDOR_ID_DLINK, 0x4300,
163 PCI_VENDOR_ID_DLINK, 0x4b10, 0, 0 },
164 { PCI_VDEVICE(DLINK, 0x4300) },
165 { PCI_VDEVICE(DLINK, 0x4302) },
166 { PCI_VDEVICE(AT, 0xc107) },
167 { PCI_VDEVICE(USR, 0x0116) },
168 { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0024 },
169 { 0x0001, 0x8168, PCI_ANY_ID, 0x2410 },
170 { PCI_VDEVICE(REALTEK, 0x8125) },
171 { PCI_VDEVICE(REALTEK, 0x3000) },
175 MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl);
178 MAC0 = 0, /* Ethernet hardware address. */
180 MAR0 = 8, /* Multicast filter. */
181 CounterAddrLow = 0x10,
182 CounterAddrHigh = 0x14,
183 TxDescStartAddrLow = 0x20,
184 TxDescStartAddrHigh = 0x24,
185 TxHDescStartAddrLow = 0x28,
186 TxHDescStartAddrHigh = 0x2c,
195 #define TXCFG_AUTO_FIFO (1 << 7) /* 8111e-vl */
196 #define TXCFG_EMPTY (1 << 11) /* 8111e-vl */
199 #define RX128_INT_EN (1 << 15) /* 8111c and later */
200 #define RX_MULTI_EN (1 << 14) /* 8111c only */
201 #define RXCFG_FIFO_SHIFT 13
202 /* No threshold before first PCI xfer */
203 #define RX_FIFO_THRESH (7 << RXCFG_FIFO_SHIFT)
204 #define RX_EARLY_OFF (1 << 11)
205 #define RXCFG_DMA_SHIFT 8
206 /* Unlimited maximum PCI burst. */
207 #define RX_DMA_BURST (7 << RXCFG_DMA_SHIFT)
213 #define PME_SIGNAL (1 << 5) /* 8168c and later */
224 #define RTL_COALESCE_TX_USECS GENMASK(15, 12)
225 #define RTL_COALESCE_TX_FRAMES GENMASK(11, 8)
226 #define RTL_COALESCE_RX_USECS GENMASK(7, 4)
227 #define RTL_COALESCE_RX_FRAMES GENMASK(3, 0)
229 #define RTL_COALESCE_T_MAX 0x0fU
230 #define RTL_COALESCE_FRAME_MAX (RTL_COALESCE_T_MAX * 4)
232 RxDescAddrLow = 0xe4,
233 RxDescAddrHigh = 0xe8,
234 EarlyTxThres = 0xec, /* 8169. Unit of 32 bytes. */
236 #define NoEarlyTx 0x3f /* Max value : no early transmit. */
238 MaxTxPacketSize = 0xec, /* 8101/8168. Unit of 128 bytes. */
240 #define TxPacketMax (8064 >> 7)
241 #define EarlySize 0x27
244 FuncEventMask = 0xf4,
245 FuncPresetState = 0xf8,
250 FuncForceEvent = 0xfc,
253 enum rtl8168_8101_registers {
256 #define CSIAR_FLAG 0x80000000
257 #define CSIAR_WRITE_CMD 0x80000000
258 #define CSIAR_BYTE_ENABLE 0x0000f000
259 #define CSIAR_ADDR_MASK 0x00000fff
262 #define EPHYAR_FLAG 0x80000000
263 #define EPHYAR_WRITE_CMD 0x80000000
264 #define EPHYAR_REG_MASK 0x1f
265 #define EPHYAR_REG_SHIFT 16
266 #define EPHYAR_DATA_MASK 0xffff
268 #define PFM_EN (1 << 6)
269 #define TX_10M_PS_EN (1 << 7)
271 #define FIX_NAK_1 (1 << 4)
272 #define FIX_NAK_2 (1 << 3)
275 #define NOW_IS_OOB (1 << 7)
276 #define TX_EMPTY (1 << 5)
277 #define RX_EMPTY (1 << 4)
278 #define RXTX_EMPTY (TX_EMPTY | RX_EMPTY)
279 #define EN_NDP (1 << 3)
280 #define EN_OOB_RESET (1 << 2)
281 #define LINK_LIST_RDY (1 << 1)
283 #define EFUSEAR_FLAG 0x80000000
284 #define EFUSEAR_WRITE_CMD 0x80000000
285 #define EFUSEAR_READ_CMD 0x00000000
286 #define EFUSEAR_REG_MASK 0x03ff
287 #define EFUSEAR_REG_SHIFT 8
288 #define EFUSEAR_DATA_MASK 0xff
290 #define PFM_D3COLD_EN (1 << 6)
293 enum rtl8168_registers {
298 #define ERIAR_FLAG 0x80000000
299 #define ERIAR_WRITE_CMD 0x80000000
300 #define ERIAR_READ_CMD 0x00000000
301 #define ERIAR_ADDR_BYTE_ALIGN 4
302 #define ERIAR_TYPE_SHIFT 16
303 #define ERIAR_EXGMAC (0x00 << ERIAR_TYPE_SHIFT)
304 #define ERIAR_MSIX (0x01 << ERIAR_TYPE_SHIFT)
305 #define ERIAR_ASF (0x02 << ERIAR_TYPE_SHIFT)
306 #define ERIAR_OOB (0x02 << ERIAR_TYPE_SHIFT)
307 #define ERIAR_MASK_SHIFT 12
308 #define ERIAR_MASK_0001 (0x1 << ERIAR_MASK_SHIFT)
309 #define ERIAR_MASK_0011 (0x3 << ERIAR_MASK_SHIFT)
310 #define ERIAR_MASK_0100 (0x4 << ERIAR_MASK_SHIFT)
311 #define ERIAR_MASK_0101 (0x5 << ERIAR_MASK_SHIFT)
312 #define ERIAR_MASK_1111 (0xf << ERIAR_MASK_SHIFT)
313 EPHY_RXER_NUM = 0x7c,
314 OCPDR = 0xb0, /* OCP GPHY access */
315 #define OCPDR_WRITE_CMD 0x80000000
316 #define OCPDR_READ_CMD 0x00000000
317 #define OCPDR_REG_MASK 0x7f
318 #define OCPDR_GPHY_REG_SHIFT 16
319 #define OCPDR_DATA_MASK 0xffff
321 #define OCPAR_FLAG 0x80000000
322 #define OCPAR_GPHY_WRITE_CMD 0x8000f060
323 #define OCPAR_GPHY_READ_CMD 0x0000f060
325 RDSAR1 = 0xd0, /* 8168c only. Undocumented on 8168dp */
326 MISC = 0xf0, /* 8168e only. */
327 #define TXPLA_RST (1 << 29)
328 #define DISABLE_LAN_EN (1 << 23) /* Enable GPIO pin */
329 #define PWM_EN (1 << 22)
330 #define RXDV_GATED_EN (1 << 19)
331 #define EARLY_TALLY_EN (1 << 16)
334 enum rtl8125_registers {
335 IntrMask_8125 = 0x38,
336 IntrStatus_8125 = 0x3c,
341 #define RX_VLAN_INNER_8125 BIT(22)
342 #define RX_VLAN_OUTER_8125 BIT(23)
343 #define RX_VLAN_8125 (RX_VLAN_INNER_8125 | RX_VLAN_OUTER_8125)
345 #define RX_FETCH_DFLT_8125 (8 << 27)
347 enum rtl_register_content {
348 /* InterruptStatusBits */
352 TxDescUnavail = 0x0080,
374 /* TXPoll register p.5 */
375 HPQ = 0x80, /* Poll cmd on the high prio queue */
376 NPQ = 0x40, /* Poll cmd on the low prio queue */
377 FSWInt = 0x01, /* Forced software interrupt */
381 Cfg9346_Unlock = 0xc0,
386 #define RX_CONFIG_ACCEPT_ERR_MASK 0x30
387 AcceptBroadcast = 0x08,
388 AcceptMulticast = 0x04,
390 AcceptAllPhys = 0x01,
391 #define RX_CONFIG_ACCEPT_OK_MASK 0x0f
392 #define RX_CONFIG_ACCEPT_MASK 0x3f
395 TxInterFrameGapShift = 24,
396 TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
398 /* Config1 register p.24 */
401 Speed_down = (1 << 4),
405 PMEnable = (1 << 0), /* Power Management Enable */
407 /* Config2 register p. 25 */
408 ClkReqEn = (1 << 7), /* Clock Request Enable */
409 MSIEnable = (1 << 5), /* 8169 only. Reserved in the 8168. */
410 PCI_Clock_66MHz = 0x01,
411 PCI_Clock_33MHz = 0x00,
413 /* Config3 register p.25 */
414 MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */
415 LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */
416 Jumbo_En0 = (1 << 2), /* 8168 only. Reserved in the 8168b */
417 Rdy_to_L23 = (1 << 1), /* L23 Enable */
418 Beacon_en = (1 << 0), /* 8168 only. Reserved in the 8168b */
420 /* Config4 register */
421 Jumbo_En1 = (1 << 1), /* 8168 only. Reserved in the 8168b */
423 /* Config5 register p.27 */
424 BWF = (1 << 6), /* Accept Broadcast wakeup frame */
425 MWF = (1 << 5), /* Accept Multicast wakeup frame */
426 UWF = (1 << 4), /* Accept Unicast wakeup frame */
428 LanWake = (1 << 1), /* LanWake enable/disable */
429 PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */
430 ASPM_en = (1 << 0), /* ASPM enable */
433 EnableBist = (1 << 15), // 8168 8101
434 Mac_dbgo_oe = (1 << 14), // 8168 8101
435 EnAnaPLL = (1 << 14), // 8169
436 Normal_mode = (1 << 13), // unused
437 Force_half_dup = (1 << 12), // 8168 8101
438 Force_rxflow_en = (1 << 11), // 8168 8101
439 Force_txflow_en = (1 << 10), // 8168 8101
440 Cxpl_dbg_sel = (1 << 9), // 8168 8101
441 ASF = (1 << 8), // 8168 8101
442 PktCntrDisable = (1 << 7), // 8168 8101
443 Mac_dbgo_sel = 0x001c, // 8168
448 #define INTT_MASK GENMASK(1, 0)
449 #define CPCMD_MASK (Normal_mode | RxVlan | RxChkSum | INTT_MASK)
451 /* rtl8169_PHYstatus */
461 /* ResetCounterCommand */
464 /* DumpCounterCommand */
467 /* magic enable v2 */
468 MagicPacket_v2 = (1 << 16), /* Wake up when receives a Magic Packet */
472 /* First doubleword. */
473 DescOwn = (1 << 31), /* Descriptor is owned by NIC */
474 RingEnd = (1 << 30), /* End of descriptor ring */
475 FirstFrag = (1 << 29), /* First segment of a packet */
476 LastFrag = (1 << 28), /* Final segment of a packet */
480 enum rtl_tx_desc_bit {
481 /* First doubleword. */
482 TD_LSO = (1 << 27), /* Large Send Offload */
483 #define TD_MSS_MAX 0x07ffu /* MSS value */
485 /* Second doubleword. */
486 TxVlanTag = (1 << 17), /* Add VLAN tag */
489 /* 8169, 8168b and 810x except 8102e. */
490 enum rtl_tx_desc_bit_0 {
491 /* First doubleword. */
492 #define TD0_MSS_SHIFT 16 /* MSS position (11 bits) */
493 TD0_TCP_CS = (1 << 16), /* Calculate TCP/IP checksum */
494 TD0_UDP_CS = (1 << 17), /* Calculate UDP/IP checksum */
495 TD0_IP_CS = (1 << 18), /* Calculate IP checksum */
498 /* 8102e, 8168c and beyond. */
499 enum rtl_tx_desc_bit_1 {
500 /* First doubleword. */
501 TD1_GTSENV4 = (1 << 26), /* Giant Send for IPv4 */
502 TD1_GTSENV6 = (1 << 25), /* Giant Send for IPv6 */
503 #define GTTCPHO_SHIFT 18
504 #define GTTCPHO_MAX 0x7f
506 /* Second doubleword. */
507 #define TCPHO_SHIFT 18
508 #define TCPHO_MAX 0x3ff
509 #define TD1_MSS_SHIFT 18 /* MSS position (11 bits) */
510 TD1_IPv6_CS = (1 << 28), /* Calculate IPv6 checksum */
511 TD1_IPv4_CS = (1 << 29), /* Calculate IPv4 checksum */
512 TD1_TCP_CS = (1 << 30), /* Calculate TCP/IP checksum */
513 TD1_UDP_CS = (1 << 31), /* Calculate UDP/IP checksum */
516 enum rtl_rx_desc_bit {
518 PID1 = (1 << 18), /* Protocol ID bit 1/2 */
519 PID0 = (1 << 17), /* Protocol ID bit 0/2 */
521 #define RxProtoUDP (PID1)
522 #define RxProtoTCP (PID0)
523 #define RxProtoIP (PID1 | PID0)
524 #define RxProtoMask RxProtoIP
526 IPFail = (1 << 16), /* IP checksum failed */
527 UDPFail = (1 << 15), /* UDP/IP checksum failed */
528 TCPFail = (1 << 14), /* TCP/IP checksum failed */
529 RxVlanTag = (1 << 16), /* VLAN tag available */
532 #define RsvdMask 0x3fffc000
534 #define RTL_GSO_MAX_SIZE_V1 32000
535 #define RTL_GSO_MAX_SEGS_V1 24
536 #define RTL_GSO_MAX_SIZE_V2 64000
537 #define RTL_GSO_MAX_SEGS_V2 64
556 struct rtl8169_counters {
563 __le32 tx_one_collision;
564 __le32 tx_multi_collision;
572 struct rtl8169_tc_offsets {
575 __le32 tx_multi_collision;
581 RTL_FLAG_TASK_ENABLED = 0,
582 RTL_FLAG_TASK_RESET_PENDING,
586 struct rtl8169_stats {
589 struct u64_stats_sync syncp;
592 struct rtl8169_private {
593 void __iomem *mmio_addr; /* memory map physical address */
594 struct pci_dev *pci_dev;
595 struct net_device *dev;
596 struct phy_device *phydev;
597 struct napi_struct napi;
598 enum mac_version mac_version;
599 u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
600 u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
602 struct rtl8169_stats rx_stats;
603 struct rtl8169_stats tx_stats;
604 struct TxDesc *TxDescArray; /* 256-aligned Tx descriptor ring */
605 struct RxDesc *RxDescArray; /* 256-aligned Rx descriptor ring */
606 dma_addr_t TxPhyAddr;
607 dma_addr_t RxPhyAddr;
608 struct page *Rx_databuff[NUM_RX_DESC]; /* Rx data buffers */
609 struct ring_info tx_skb[NUM_TX_DESC]; /* Tx data buffers */
615 DECLARE_BITMAP(flags, RTL_FLAG_MAX);
617 struct work_struct work;
620 unsigned irq_enabled:1;
621 unsigned supports_gmii:1;
622 unsigned aspm_manageable:1;
623 dma_addr_t counters_phys_addr;
624 struct rtl8169_counters *counters;
625 struct rtl8169_tc_offsets tc_offset;
630 struct rtl_fw *rtl_fw;
635 typedef void (*rtl_generic_fct)(struct rtl8169_private *tp);
637 MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>");
638 MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver");
639 MODULE_SOFTDEP("pre: realtek");
640 MODULE_LICENSE("GPL");
641 MODULE_FIRMWARE(FIRMWARE_8168D_1);
642 MODULE_FIRMWARE(FIRMWARE_8168D_2);
643 MODULE_FIRMWARE(FIRMWARE_8168E_1);
644 MODULE_FIRMWARE(FIRMWARE_8168E_2);
645 MODULE_FIRMWARE(FIRMWARE_8168E_3);
646 MODULE_FIRMWARE(FIRMWARE_8105E_1);
647 MODULE_FIRMWARE(FIRMWARE_8168F_1);
648 MODULE_FIRMWARE(FIRMWARE_8168F_2);
649 MODULE_FIRMWARE(FIRMWARE_8402_1);
650 MODULE_FIRMWARE(FIRMWARE_8411_1);
651 MODULE_FIRMWARE(FIRMWARE_8411_2);
652 MODULE_FIRMWARE(FIRMWARE_8106E_1);
653 MODULE_FIRMWARE(FIRMWARE_8106E_2);
654 MODULE_FIRMWARE(FIRMWARE_8168G_2);
655 MODULE_FIRMWARE(FIRMWARE_8168G_3);
656 MODULE_FIRMWARE(FIRMWARE_8168H_1);
657 MODULE_FIRMWARE(FIRMWARE_8168H_2);
658 MODULE_FIRMWARE(FIRMWARE_8168FP_3);
659 MODULE_FIRMWARE(FIRMWARE_8107E_1);
660 MODULE_FIRMWARE(FIRMWARE_8107E_2);
661 MODULE_FIRMWARE(FIRMWARE_8125A_3);
663 static inline struct device *tp_to_dev(struct rtl8169_private *tp)
665 return &tp->pci_dev->dev;
668 static void rtl_lock_work(struct rtl8169_private *tp)
670 mutex_lock(&tp->wk.mutex);
673 static void rtl_unlock_work(struct rtl8169_private *tp)
675 mutex_unlock(&tp->wk.mutex);
678 static void rtl_lock_config_regs(struct rtl8169_private *tp)
680 RTL_W8(tp, Cfg9346, Cfg9346_Lock);
683 static void rtl_unlock_config_regs(struct rtl8169_private *tp)
685 RTL_W8(tp, Cfg9346, Cfg9346_Unlock);
688 static void rtl_pci_commit(struct rtl8169_private *tp)
690 /* Read an arbitrary register to commit a preceding PCI write */
694 static bool rtl_is_8125(struct rtl8169_private *tp)
696 return tp->mac_version >= RTL_GIGA_MAC_VER_60;
699 static bool rtl_is_8168evl_up(struct rtl8169_private *tp)
701 return tp->mac_version >= RTL_GIGA_MAC_VER_34 &&
702 tp->mac_version != RTL_GIGA_MAC_VER_39 &&
703 tp->mac_version <= RTL_GIGA_MAC_VER_52;
706 static bool rtl_supports_eee(struct rtl8169_private *tp)
708 return tp->mac_version >= RTL_GIGA_MAC_VER_34 &&
709 tp->mac_version != RTL_GIGA_MAC_VER_37 &&
710 tp->mac_version != RTL_GIGA_MAC_VER_39;
713 static void rtl_read_mac_from_reg(struct rtl8169_private *tp, u8 *mac, int reg)
717 for (i = 0; i < ETH_ALEN; i++)
718 mac[i] = RTL_R8(tp, reg + i);
722 bool (*check)(struct rtl8169_private *);
726 static bool rtl_loop_wait(struct rtl8169_private *tp, const struct rtl_cond *c,
727 unsigned long usecs, int n, bool high)
731 for (i = 0; i < n; i++) {
732 if (c->check(tp) == high)
738 netdev_err(tp->dev, "%s == %d (loop: %d, delay: %lu).\n",
739 c->msg, !high, n, usecs);
743 static bool rtl_loop_wait_high(struct rtl8169_private *tp,
744 const struct rtl_cond *c,
745 unsigned long d, int n)
747 return rtl_loop_wait(tp, c, d, n, true);
750 static bool rtl_loop_wait_low(struct rtl8169_private *tp,
751 const struct rtl_cond *c,
752 unsigned long d, int n)
754 return rtl_loop_wait(tp, c, d, n, false);
757 #define DECLARE_RTL_COND(name) \
758 static bool name ## _check(struct rtl8169_private *); \
760 static const struct rtl_cond name = { \
761 .check = name ## _check, \
765 static bool name ## _check(struct rtl8169_private *tp)
767 static bool rtl_ocp_reg_failure(struct rtl8169_private *tp, u32 reg)
769 if (reg & 0xffff0001) {
771 netdev_err(tp->dev, "Invalid ocp reg %x!\n", reg);
777 DECLARE_RTL_COND(rtl_ocp_gphy_cond)
779 return RTL_R32(tp, GPHY_OCP) & OCPAR_FLAG;
782 static void r8168_phy_ocp_write(struct rtl8169_private *tp, u32 reg, u32 data)
784 if (rtl_ocp_reg_failure(tp, reg))
787 RTL_W32(tp, GPHY_OCP, OCPAR_FLAG | (reg << 15) | data);
789 rtl_loop_wait_low(tp, &rtl_ocp_gphy_cond, 25, 10);
792 static int r8168_phy_ocp_read(struct rtl8169_private *tp, u32 reg)
794 if (rtl_ocp_reg_failure(tp, reg))
797 RTL_W32(tp, GPHY_OCP, reg << 15);
799 return rtl_loop_wait_high(tp, &rtl_ocp_gphy_cond, 25, 10) ?
800 (RTL_R32(tp, GPHY_OCP) & 0xffff) : -ETIMEDOUT;
803 static void r8168_mac_ocp_write(struct rtl8169_private *tp, u32 reg, u32 data)
805 if (rtl_ocp_reg_failure(tp, reg))
808 RTL_W32(tp, OCPDR, OCPAR_FLAG | (reg << 15) | data);
811 static u16 r8168_mac_ocp_read(struct rtl8169_private *tp, u32 reg)
813 if (rtl_ocp_reg_failure(tp, reg))
816 RTL_W32(tp, OCPDR, reg << 15);
818 return RTL_R32(tp, OCPDR);
821 static void r8168_mac_ocp_modify(struct rtl8169_private *tp, u32 reg, u16 mask,
824 u16 data = r8168_mac_ocp_read(tp, reg);
826 r8168_mac_ocp_write(tp, reg, (data & ~mask) | set);
829 static void r8168g_mdio_write(struct rtl8169_private *tp, int reg, int value)
832 tp->ocp_base = value ? value << 4 : OCP_STD_PHY_BASE;
836 if (tp->ocp_base != OCP_STD_PHY_BASE)
839 r8168_phy_ocp_write(tp, tp->ocp_base + reg * 2, value);
842 static int r8168g_mdio_read(struct rtl8169_private *tp, int reg)
845 return tp->ocp_base == OCP_STD_PHY_BASE ? 0 : tp->ocp_base >> 4;
847 if (tp->ocp_base != OCP_STD_PHY_BASE)
850 return r8168_phy_ocp_read(tp, tp->ocp_base + reg * 2);
853 static void mac_mcu_write(struct rtl8169_private *tp, int reg, int value)
856 tp->ocp_base = value << 4;
860 r8168_mac_ocp_write(tp, tp->ocp_base + reg, value);
863 static int mac_mcu_read(struct rtl8169_private *tp, int reg)
865 return r8168_mac_ocp_read(tp, tp->ocp_base + reg);
868 DECLARE_RTL_COND(rtl_phyar_cond)
870 return RTL_R32(tp, PHYAR) & 0x80000000;
873 static void r8169_mdio_write(struct rtl8169_private *tp, int reg, int value)
875 RTL_W32(tp, PHYAR, 0x80000000 | (reg & 0x1f) << 16 | (value & 0xffff));
877 rtl_loop_wait_low(tp, &rtl_phyar_cond, 25, 20);
879 * According to hardware specs a 20us delay is required after write
880 * complete indication, but before sending next command.
885 static int r8169_mdio_read(struct rtl8169_private *tp, int reg)
889 RTL_W32(tp, PHYAR, 0x0 | (reg & 0x1f) << 16);
891 value = rtl_loop_wait_high(tp, &rtl_phyar_cond, 25, 20) ?
892 RTL_R32(tp, PHYAR) & 0xffff : -ETIMEDOUT;
895 * According to hardware specs a 20us delay is required after read
896 * complete indication, but before sending next command.
903 DECLARE_RTL_COND(rtl_ocpar_cond)
905 return RTL_R32(tp, OCPAR) & OCPAR_FLAG;
908 static void r8168dp_1_mdio_access(struct rtl8169_private *tp, int reg, u32 data)
910 RTL_W32(tp, OCPDR, data | ((reg & OCPDR_REG_MASK) << OCPDR_GPHY_REG_SHIFT));
911 RTL_W32(tp, OCPAR, OCPAR_GPHY_WRITE_CMD);
912 RTL_W32(tp, EPHY_RXER_NUM, 0);
914 rtl_loop_wait_low(tp, &rtl_ocpar_cond, 1000, 100);
917 static void r8168dp_1_mdio_write(struct rtl8169_private *tp, int reg, int value)
919 r8168dp_1_mdio_access(tp, reg,
920 OCPDR_WRITE_CMD | (value & OCPDR_DATA_MASK));
923 static int r8168dp_1_mdio_read(struct rtl8169_private *tp, int reg)
925 r8168dp_1_mdio_access(tp, reg, OCPDR_READ_CMD);
928 RTL_W32(tp, OCPAR, OCPAR_GPHY_READ_CMD);
929 RTL_W32(tp, EPHY_RXER_NUM, 0);
931 return rtl_loop_wait_high(tp, &rtl_ocpar_cond, 1000, 100) ?
932 RTL_R32(tp, OCPDR) & OCPDR_DATA_MASK : -ETIMEDOUT;
935 #define R8168DP_1_MDIO_ACCESS_BIT 0x00020000
937 static void r8168dp_2_mdio_start(struct rtl8169_private *tp)
939 RTL_W32(tp, 0xd0, RTL_R32(tp, 0xd0) & ~R8168DP_1_MDIO_ACCESS_BIT);
942 static void r8168dp_2_mdio_stop(struct rtl8169_private *tp)
944 RTL_W32(tp, 0xd0, RTL_R32(tp, 0xd0) | R8168DP_1_MDIO_ACCESS_BIT);
947 static void r8168dp_2_mdio_write(struct rtl8169_private *tp, int reg, int value)
949 r8168dp_2_mdio_start(tp);
951 r8169_mdio_write(tp, reg, value);
953 r8168dp_2_mdio_stop(tp);
956 static int r8168dp_2_mdio_read(struct rtl8169_private *tp, int reg)
960 /* Work around issue with chip reporting wrong PHY ID */
961 if (reg == MII_PHYSID2)
964 r8168dp_2_mdio_start(tp);
966 value = r8169_mdio_read(tp, reg);
968 r8168dp_2_mdio_stop(tp);
973 static void rtl_writephy(struct rtl8169_private *tp, int location, int val)
975 switch (tp->mac_version) {
976 case RTL_GIGA_MAC_VER_27:
977 r8168dp_1_mdio_write(tp, location, val);
979 case RTL_GIGA_MAC_VER_28:
980 case RTL_GIGA_MAC_VER_31:
981 r8168dp_2_mdio_write(tp, location, val);
983 case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_61:
984 r8168g_mdio_write(tp, location, val);
987 r8169_mdio_write(tp, location, val);
992 static int rtl_readphy(struct rtl8169_private *tp, int location)
994 switch (tp->mac_version) {
995 case RTL_GIGA_MAC_VER_27:
996 return r8168dp_1_mdio_read(tp, location);
997 case RTL_GIGA_MAC_VER_28:
998 case RTL_GIGA_MAC_VER_31:
999 return r8168dp_2_mdio_read(tp, location);
1000 case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_61:
1001 return r8168g_mdio_read(tp, location);
1003 return r8169_mdio_read(tp, location);
1007 DECLARE_RTL_COND(rtl_ephyar_cond)
1009 return RTL_R32(tp, EPHYAR) & EPHYAR_FLAG;
1012 static void rtl_ephy_write(struct rtl8169_private *tp, int reg_addr, int value)
1014 RTL_W32(tp, EPHYAR, EPHYAR_WRITE_CMD | (value & EPHYAR_DATA_MASK) |
1015 (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
1017 rtl_loop_wait_low(tp, &rtl_ephyar_cond, 10, 100);
1022 static u16 rtl_ephy_read(struct rtl8169_private *tp, int reg_addr)
1024 RTL_W32(tp, EPHYAR, (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
1026 return rtl_loop_wait_high(tp, &rtl_ephyar_cond, 10, 100) ?
1027 RTL_R32(tp, EPHYAR) & EPHYAR_DATA_MASK : ~0;
1030 static void r8168fp_adjust_ocp_cmd(struct rtl8169_private *tp, u32 *cmd, int type)
1032 /* based on RTL8168FP_OOBMAC_BASE in vendor driver */
1033 if (tp->mac_version == RTL_GIGA_MAC_VER_52 && type == ERIAR_OOB)
1034 *cmd |= 0x7f0 << 18;
1037 DECLARE_RTL_COND(rtl_eriar_cond)
1039 return RTL_R32(tp, ERIAR) & ERIAR_FLAG;
1042 static void _rtl_eri_write(struct rtl8169_private *tp, int addr, u32 mask,
1045 u32 cmd = ERIAR_WRITE_CMD | type | mask | addr;
1047 BUG_ON((addr & 3) || (mask == 0));
1048 RTL_W32(tp, ERIDR, val);
1049 r8168fp_adjust_ocp_cmd(tp, &cmd, type);
1050 RTL_W32(tp, ERIAR, cmd);
1052 rtl_loop_wait_low(tp, &rtl_eriar_cond, 100, 100);
1055 static void rtl_eri_write(struct rtl8169_private *tp, int addr, u32 mask,
1058 _rtl_eri_write(tp, addr, mask, val, ERIAR_EXGMAC);
1061 static u32 _rtl_eri_read(struct rtl8169_private *tp, int addr, int type)
1063 u32 cmd = ERIAR_READ_CMD | type | ERIAR_MASK_1111 | addr;
1065 r8168fp_adjust_ocp_cmd(tp, &cmd, type);
1066 RTL_W32(tp, ERIAR, cmd);
1068 return rtl_loop_wait_high(tp, &rtl_eriar_cond, 100, 100) ?
1069 RTL_R32(tp, ERIDR) : ~0;
1072 static u32 rtl_eri_read(struct rtl8169_private *tp, int addr)
1074 return _rtl_eri_read(tp, addr, ERIAR_EXGMAC);
1077 static void rtl_w0w1_eri(struct rtl8169_private *tp, int addr, u32 p, u32 m)
1079 u32 val = rtl_eri_read(tp, addr);
1081 rtl_eri_write(tp, addr, ERIAR_MASK_1111, (val & ~m) | p);
1084 static void rtl_eri_set_bits(struct rtl8169_private *tp, int addr, u32 p)
1086 rtl_w0w1_eri(tp, addr, p, 0);
1089 static void rtl_eri_clear_bits(struct rtl8169_private *tp, int addr, u32 m)
1091 rtl_w0w1_eri(tp, addr, 0, m);
1094 static u32 r8168dp_ocp_read(struct rtl8169_private *tp, u16 reg)
1096 RTL_W32(tp, OCPAR, 0x0fu << 12 | (reg & 0x0fff));
1097 return rtl_loop_wait_high(tp, &rtl_ocpar_cond, 100, 20) ?
1098 RTL_R32(tp, OCPDR) : ~0;
1101 static u32 r8168ep_ocp_read(struct rtl8169_private *tp, u16 reg)
1103 return _rtl_eri_read(tp, reg, ERIAR_OOB);
1106 static void r8168dp_ocp_write(struct rtl8169_private *tp, u8 mask, u16 reg,
1109 RTL_W32(tp, OCPDR, data);
1110 RTL_W32(tp, OCPAR, OCPAR_FLAG | ((u32)mask & 0x0f) << 12 | (reg & 0x0fff));
1111 rtl_loop_wait_low(tp, &rtl_ocpar_cond, 100, 20);
1114 static void r8168ep_ocp_write(struct rtl8169_private *tp, u8 mask, u16 reg,
1117 _rtl_eri_write(tp, reg, ((u32)mask & 0x0f) << ERIAR_MASK_SHIFT,
1121 static void r8168dp_oob_notify(struct rtl8169_private *tp, u8 cmd)
1123 rtl_eri_write(tp, 0xe8, ERIAR_MASK_0001, cmd);
1125 r8168dp_ocp_write(tp, 0x1, 0x30, 0x00000001);
1128 #define OOB_CMD_RESET 0x00
1129 #define OOB_CMD_DRIVER_START 0x05
1130 #define OOB_CMD_DRIVER_STOP 0x06
1132 static u16 rtl8168_get_ocp_reg(struct rtl8169_private *tp)
1134 return (tp->mac_version == RTL_GIGA_MAC_VER_31) ? 0xb8 : 0x10;
1137 DECLARE_RTL_COND(rtl_dp_ocp_read_cond)
1141 reg = rtl8168_get_ocp_reg(tp);
1143 return r8168dp_ocp_read(tp, reg) & 0x00000800;
1146 DECLARE_RTL_COND(rtl_ep_ocp_read_cond)
1148 return r8168ep_ocp_read(tp, 0x124) & 0x00000001;
1151 DECLARE_RTL_COND(rtl_ocp_tx_cond)
1153 return RTL_R8(tp, IBISR0) & 0x20;
1156 static void rtl8168ep_stop_cmac(struct rtl8169_private *tp)
1158 RTL_W8(tp, IBCR2, RTL_R8(tp, IBCR2) & ~0x01);
1159 rtl_loop_wait_high(tp, &rtl_ocp_tx_cond, 50000, 2000);
1160 RTL_W8(tp, IBISR0, RTL_R8(tp, IBISR0) | 0x20);
1161 RTL_W8(tp, IBCR0, RTL_R8(tp, IBCR0) & ~0x01);
1164 static void rtl8168dp_driver_start(struct rtl8169_private *tp)
1166 r8168dp_oob_notify(tp, OOB_CMD_DRIVER_START);
1167 rtl_loop_wait_high(tp, &rtl_dp_ocp_read_cond, 10000, 10);
1170 static void rtl8168ep_driver_start(struct rtl8169_private *tp)
1172 r8168ep_ocp_write(tp, 0x01, 0x180, OOB_CMD_DRIVER_START);
1173 r8168ep_ocp_write(tp, 0x01, 0x30, r8168ep_ocp_read(tp, 0x30) | 0x01);
1174 rtl_loop_wait_high(tp, &rtl_ep_ocp_read_cond, 10000, 10);
1177 static void rtl8168_driver_start(struct rtl8169_private *tp)
1179 switch (tp->mac_version) {
1180 case RTL_GIGA_MAC_VER_27:
1181 case RTL_GIGA_MAC_VER_28:
1182 case RTL_GIGA_MAC_VER_31:
1183 rtl8168dp_driver_start(tp);
1185 case RTL_GIGA_MAC_VER_49 ... RTL_GIGA_MAC_VER_52:
1186 rtl8168ep_driver_start(tp);
1194 static void rtl8168dp_driver_stop(struct rtl8169_private *tp)
1196 r8168dp_oob_notify(tp, OOB_CMD_DRIVER_STOP);
1197 rtl_loop_wait_low(tp, &rtl_dp_ocp_read_cond, 10000, 10);
1200 static void rtl8168ep_driver_stop(struct rtl8169_private *tp)
1202 rtl8168ep_stop_cmac(tp);
1203 r8168ep_ocp_write(tp, 0x01, 0x180, OOB_CMD_DRIVER_STOP);
1204 r8168ep_ocp_write(tp, 0x01, 0x30, r8168ep_ocp_read(tp, 0x30) | 0x01);
1205 rtl_loop_wait_low(tp, &rtl_ep_ocp_read_cond, 10000, 10);
1208 static void rtl8168_driver_stop(struct rtl8169_private *tp)
1210 switch (tp->mac_version) {
1211 case RTL_GIGA_MAC_VER_27:
1212 case RTL_GIGA_MAC_VER_28:
1213 case RTL_GIGA_MAC_VER_31:
1214 rtl8168dp_driver_stop(tp);
1216 case RTL_GIGA_MAC_VER_49 ... RTL_GIGA_MAC_VER_52:
1217 rtl8168ep_driver_stop(tp);
1225 static bool r8168dp_check_dash(struct rtl8169_private *tp)
1227 u16 reg = rtl8168_get_ocp_reg(tp);
1229 return !!(r8168dp_ocp_read(tp, reg) & 0x00008000);
1232 static bool r8168ep_check_dash(struct rtl8169_private *tp)
1234 return r8168ep_ocp_read(tp, 0x128) & 0x00000001;
1237 static bool r8168_check_dash(struct rtl8169_private *tp)
1239 switch (tp->mac_version) {
1240 case RTL_GIGA_MAC_VER_27:
1241 case RTL_GIGA_MAC_VER_28:
1242 case RTL_GIGA_MAC_VER_31:
1243 return r8168dp_check_dash(tp);
1244 case RTL_GIGA_MAC_VER_49 ... RTL_GIGA_MAC_VER_52:
1245 return r8168ep_check_dash(tp);
1251 static void rtl_reset_packet_filter(struct rtl8169_private *tp)
1253 rtl_eri_clear_bits(tp, 0xdc, BIT(0));
1254 rtl_eri_set_bits(tp, 0xdc, BIT(0));
1257 DECLARE_RTL_COND(rtl_efusear_cond)
1259 return RTL_R32(tp, EFUSEAR) & EFUSEAR_FLAG;
1262 u8 rtl8168d_efuse_read(struct rtl8169_private *tp, int reg_addr)
1264 RTL_W32(tp, EFUSEAR, (reg_addr & EFUSEAR_REG_MASK) << EFUSEAR_REG_SHIFT);
1266 return rtl_loop_wait_high(tp, &rtl_efusear_cond, 100, 300) ?
1267 RTL_R32(tp, EFUSEAR) & EFUSEAR_DATA_MASK : ~0;
1270 static u32 rtl_get_events(struct rtl8169_private *tp)
1272 if (rtl_is_8125(tp))
1273 return RTL_R32(tp, IntrStatus_8125);
1275 return RTL_R16(tp, IntrStatus);
1278 static void rtl_ack_events(struct rtl8169_private *tp, u32 bits)
1280 if (rtl_is_8125(tp))
1281 RTL_W32(tp, IntrStatus_8125, bits);
1283 RTL_W16(tp, IntrStatus, bits);
1286 static void rtl_irq_disable(struct rtl8169_private *tp)
1288 if (rtl_is_8125(tp))
1289 RTL_W32(tp, IntrMask_8125, 0);
1291 RTL_W16(tp, IntrMask, 0);
1292 tp->irq_enabled = 0;
1295 static void rtl_irq_enable(struct rtl8169_private *tp)
1297 tp->irq_enabled = 1;
1298 if (rtl_is_8125(tp))
1299 RTL_W32(tp, IntrMask_8125, tp->irq_mask);
1301 RTL_W16(tp, IntrMask, tp->irq_mask);
1304 static void rtl8169_irq_mask_and_ack(struct rtl8169_private *tp)
1306 rtl_irq_disable(tp);
1307 rtl_ack_events(tp, 0xffffffff);
1311 static void rtl_link_chg_patch(struct rtl8169_private *tp)
1313 struct phy_device *phydev = tp->phydev;
1315 if (tp->mac_version == RTL_GIGA_MAC_VER_34 ||
1316 tp->mac_version == RTL_GIGA_MAC_VER_38) {
1317 if (phydev->speed == SPEED_1000) {
1318 rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x00000011);
1319 rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x00000005);
1320 } else if (phydev->speed == SPEED_100) {
1321 rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x0000001f);
1322 rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x00000005);
1324 rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x0000001f);
1325 rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x0000003f);
1327 rtl_reset_packet_filter(tp);
1328 } else if (tp->mac_version == RTL_GIGA_MAC_VER_35 ||
1329 tp->mac_version == RTL_GIGA_MAC_VER_36) {
1330 if (phydev->speed == SPEED_1000) {
1331 rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x00000011);
1332 rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x00000005);
1334 rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x0000001f);
1335 rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x0000003f);
1337 } else if (tp->mac_version == RTL_GIGA_MAC_VER_37) {
1338 if (phydev->speed == SPEED_10) {
1339 rtl_eri_write(tp, 0x1d0, ERIAR_MASK_0011, 0x4d02);
1340 rtl_eri_write(tp, 0x1dc, ERIAR_MASK_0011, 0x0060a);
1342 rtl_eri_write(tp, 0x1d0, ERIAR_MASK_0011, 0x0000);
1347 #define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
1349 static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
1351 struct rtl8169_private *tp = netdev_priv(dev);
1354 wol->supported = WAKE_ANY;
1355 wol->wolopts = tp->saved_wolopts;
1356 rtl_unlock_work(tp);
1359 static void __rtl8169_set_wol(struct rtl8169_private *tp, u32 wolopts)
1361 static const struct {
1366 { WAKE_PHY, Config3, LinkUp },
1367 { WAKE_UCAST, Config5, UWF },
1368 { WAKE_BCAST, Config5, BWF },
1369 { WAKE_MCAST, Config5, MWF },
1370 { WAKE_ANY, Config5, LanWake },
1371 { WAKE_MAGIC, Config3, MagicPacket }
1373 unsigned int i, tmp = ARRAY_SIZE(cfg);
1376 rtl_unlock_config_regs(tp);
1378 if (rtl_is_8168evl_up(tp)) {
1380 if (wolopts & WAKE_MAGIC)
1381 rtl_eri_set_bits(tp, 0x0dc, MagicPacket_v2);
1383 rtl_eri_clear_bits(tp, 0x0dc, MagicPacket_v2);
1384 } else if (rtl_is_8125(tp)) {
1386 if (wolopts & WAKE_MAGIC)
1387 r8168_mac_ocp_modify(tp, 0xc0b6, 0, BIT(0));
1389 r8168_mac_ocp_modify(tp, 0xc0b6, BIT(0), 0);
1392 for (i = 0; i < tmp; i++) {
1393 options = RTL_R8(tp, cfg[i].reg) & ~cfg[i].mask;
1394 if (wolopts & cfg[i].opt)
1395 options |= cfg[i].mask;
1396 RTL_W8(tp, cfg[i].reg, options);
1399 switch (tp->mac_version) {
1400 case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
1401 options = RTL_R8(tp, Config1) & ~PMEnable;
1403 options |= PMEnable;
1404 RTL_W8(tp, Config1, options);
1406 case RTL_GIGA_MAC_VER_34:
1407 case RTL_GIGA_MAC_VER_37:
1408 case RTL_GIGA_MAC_VER_39 ... RTL_GIGA_MAC_VER_61:
1409 options = RTL_R8(tp, Config2) & ~PME_SIGNAL;
1411 options |= PME_SIGNAL;
1412 RTL_W8(tp, Config2, options);
1418 rtl_lock_config_regs(tp);
1420 device_set_wakeup_enable(tp_to_dev(tp), wolopts);
1421 tp->dev->wol_enabled = wolopts ? 1 : 0;
1424 static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
1426 struct rtl8169_private *tp = netdev_priv(dev);
1427 struct device *d = tp_to_dev(tp);
1429 if (wol->wolopts & ~WAKE_ANY)
1432 pm_runtime_get_noresume(d);
1436 tp->saved_wolopts = wol->wolopts;
1438 if (pm_runtime_active(d))
1439 __rtl8169_set_wol(tp, tp->saved_wolopts);
1441 rtl_unlock_work(tp);
1443 pm_runtime_put_noidle(d);
1448 static void rtl8169_get_drvinfo(struct net_device *dev,
1449 struct ethtool_drvinfo *info)
1451 struct rtl8169_private *tp = netdev_priv(dev);
1452 struct rtl_fw *rtl_fw = tp->rtl_fw;
1454 strlcpy(info->driver, MODULENAME, sizeof(info->driver));
1455 strlcpy(info->bus_info, pci_name(tp->pci_dev), sizeof(info->bus_info));
1456 BUILD_BUG_ON(sizeof(info->fw_version) < sizeof(rtl_fw->version));
1458 strlcpy(info->fw_version, rtl_fw->version,
1459 sizeof(info->fw_version));
1462 static int rtl8169_get_regs_len(struct net_device *dev)
1464 return R8169_REGS_SIZE;
1467 static netdev_features_t rtl8169_fix_features(struct net_device *dev,
1468 netdev_features_t features)
1470 struct rtl8169_private *tp = netdev_priv(dev);
1472 if (dev->mtu > TD_MSS_MAX)
1473 features &= ~NETIF_F_ALL_TSO;
1475 if (dev->mtu > ETH_DATA_LEN &&
1476 tp->mac_version > RTL_GIGA_MAC_VER_06)
1477 features &= ~(NETIF_F_CSUM_MASK | NETIF_F_ALL_TSO);
1482 static void rtl_set_rx_config_features(struct rtl8169_private *tp,
1483 netdev_features_t features)
1485 u32 rx_config = RTL_R32(tp, RxConfig);
1487 if (features & NETIF_F_RXALL)
1488 rx_config |= RX_CONFIG_ACCEPT_ERR_MASK;
1490 rx_config &= ~RX_CONFIG_ACCEPT_ERR_MASK;
1492 if (rtl_is_8125(tp)) {
1493 if (features & NETIF_F_HW_VLAN_CTAG_RX)
1494 rx_config |= RX_VLAN_8125;
1496 rx_config &= ~RX_VLAN_8125;
1499 RTL_W32(tp, RxConfig, rx_config);
1502 static int rtl8169_set_features(struct net_device *dev,
1503 netdev_features_t features)
1505 struct rtl8169_private *tp = netdev_priv(dev);
1509 rtl_set_rx_config_features(tp, features);
1511 if (features & NETIF_F_RXCSUM)
1512 tp->cp_cmd |= RxChkSum;
1514 tp->cp_cmd &= ~RxChkSum;
1516 if (!rtl_is_8125(tp)) {
1517 if (features & NETIF_F_HW_VLAN_CTAG_RX)
1518 tp->cp_cmd |= RxVlan;
1520 tp->cp_cmd &= ~RxVlan;
1523 RTL_W16(tp, CPlusCmd, tp->cp_cmd);
1526 rtl_unlock_work(tp);
1531 static inline u32 rtl8169_tx_vlan_tag(struct sk_buff *skb)
1533 return (skb_vlan_tag_present(skb)) ?
1534 TxVlanTag | swab16(skb_vlan_tag_get(skb)) : 0x00;
1537 static void rtl8169_rx_vlan_tag(struct RxDesc *desc, struct sk_buff *skb)
1539 u32 opts2 = le32_to_cpu(desc->opts2);
1541 if (opts2 & RxVlanTag)
1542 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), swab16(opts2 & 0xffff));
1545 static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs,
1548 struct rtl8169_private *tp = netdev_priv(dev);
1549 u32 __iomem *data = tp->mmio_addr;
1554 for (i = 0; i < R8169_REGS_SIZE; i += 4)
1555 memcpy_fromio(dw++, data++, 4);
1556 rtl_unlock_work(tp);
1559 static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = {
1566 "tx_single_collisions",
1567 "tx_multi_collisions",
1575 static int rtl8169_get_sset_count(struct net_device *dev, int sset)
1579 return ARRAY_SIZE(rtl8169_gstrings);
1585 DECLARE_RTL_COND(rtl_counters_cond)
1587 return RTL_R32(tp, CounterAddrLow) & (CounterReset | CounterDump);
1590 static void rtl8169_do_counters(struct rtl8169_private *tp, u32 counter_cmd)
1592 dma_addr_t paddr = tp->counters_phys_addr;
1595 RTL_W32(tp, CounterAddrHigh, (u64)paddr >> 32);
1597 cmd = (u64)paddr & DMA_BIT_MASK(32);
1598 RTL_W32(tp, CounterAddrLow, cmd);
1599 RTL_W32(tp, CounterAddrLow, cmd | counter_cmd);
1601 rtl_loop_wait_low(tp, &rtl_counters_cond, 10, 1000);
1604 static void rtl8169_reset_counters(struct rtl8169_private *tp)
1607 * Versions prior to RTL_GIGA_MAC_VER_19 don't support resetting the
1610 if (tp->mac_version >= RTL_GIGA_MAC_VER_19)
1611 rtl8169_do_counters(tp, CounterReset);
1614 static void rtl8169_update_counters(struct rtl8169_private *tp)
1616 u8 val = RTL_R8(tp, ChipCmd);
1619 * Some chips are unable to dump tally counters when the receiver
1620 * is disabled. If 0xff chip may be in a PCI power-save state.
1622 if (val & CmdRxEnb && val != 0xff)
1623 rtl8169_do_counters(tp, CounterDump);
1626 static void rtl8169_init_counter_offsets(struct rtl8169_private *tp)
1628 struct rtl8169_counters *counters = tp->counters;
1631 * rtl8169_init_counter_offsets is called from rtl_open. On chip
1632 * versions prior to RTL_GIGA_MAC_VER_19 the tally counters are only
1633 * reset by a power cycle, while the counter values collected by the
1634 * driver are reset at every driver unload/load cycle.
1636 * To make sure the HW values returned by @get_stats64 match the SW
1637 * values, we collect the initial values at first open(*) and use them
1638 * as offsets to normalize the values returned by @get_stats64.
1640 * (*) We can't call rtl8169_init_counter_offsets from rtl_init_one
1641 * for the reason stated in rtl8169_update_counters; CmdRxEnb is only
1642 * set at open time by rtl_hw_start.
1645 if (tp->tc_offset.inited)
1648 rtl8169_reset_counters(tp);
1649 rtl8169_update_counters(tp);
1651 tp->tc_offset.tx_errors = counters->tx_errors;
1652 tp->tc_offset.tx_multi_collision = counters->tx_multi_collision;
1653 tp->tc_offset.tx_aborted = counters->tx_aborted;
1654 tp->tc_offset.rx_missed = counters->rx_missed;
1655 tp->tc_offset.inited = true;
1658 static void rtl8169_get_ethtool_stats(struct net_device *dev,
1659 struct ethtool_stats *stats, u64 *data)
1661 struct rtl8169_private *tp = netdev_priv(dev);
1662 struct device *d = tp_to_dev(tp);
1663 struct rtl8169_counters *counters = tp->counters;
1667 pm_runtime_get_noresume(d);
1669 if (pm_runtime_active(d))
1670 rtl8169_update_counters(tp);
1672 pm_runtime_put_noidle(d);
1674 data[0] = le64_to_cpu(counters->tx_packets);
1675 data[1] = le64_to_cpu(counters->rx_packets);
1676 data[2] = le64_to_cpu(counters->tx_errors);
1677 data[3] = le32_to_cpu(counters->rx_errors);
1678 data[4] = le16_to_cpu(counters->rx_missed);
1679 data[5] = le16_to_cpu(counters->align_errors);
1680 data[6] = le32_to_cpu(counters->tx_one_collision);
1681 data[7] = le32_to_cpu(counters->tx_multi_collision);
1682 data[8] = le64_to_cpu(counters->rx_unicast);
1683 data[9] = le64_to_cpu(counters->rx_broadcast);
1684 data[10] = le32_to_cpu(counters->rx_multicast);
1685 data[11] = le16_to_cpu(counters->tx_aborted);
1686 data[12] = le16_to_cpu(counters->tx_underun);
1689 static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data)
1693 memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings));
1699 * Interrupt coalescing
1701 * > 1 - the availability of the IntrMitigate (0xe2) register through the
1702 * > 8169, 8168 and 810x line of chipsets
1704 * 8169, 8168, and 8136(810x) serial chipsets support it.
1706 * > 2 - the Tx timer unit at gigabit speed
1708 * The unit of the timer depends on both the speed and the setting of CPlusCmd
1709 * (0xe0) bit 1 and bit 0.
1712 * bit[1:0] \ speed 1000M 100M 10M
1713 * 0 0 320ns 2.56us 40.96us
1714 * 0 1 2.56us 20.48us 327.7us
1715 * 1 0 5.12us 40.96us 655.4us
1716 * 1 1 10.24us 81.92us 1.31ms
1719 * bit[1:0] \ speed 1000M 100M 10M
1720 * 0 0 5us 2.56us 40.96us
1721 * 0 1 40us 20.48us 327.7us
1722 * 1 0 80us 40.96us 655.4us
1723 * 1 1 160us 81.92us 1.31ms
1726 /* rx/tx scale factors for all CPlusCmd[0:1] cases */
1727 struct rtl_coalesce_info {
1732 /* produce array with base delay *1, *8, *8*2, *8*2*2 */
1733 #define COALESCE_DELAY(d) { (d), 8 * (d), 16 * (d), 32 * (d) }
1735 static const struct rtl_coalesce_info rtl_coalesce_info_8169[] = {
1736 { SPEED_10, COALESCE_DELAY(40960) },
1737 { SPEED_100, COALESCE_DELAY(2560) },
1738 { SPEED_1000, COALESCE_DELAY(320) },
1742 static const struct rtl_coalesce_info rtl_coalesce_info_8168_8136[] = {
1743 { SPEED_10, COALESCE_DELAY(40960) },
1744 { SPEED_100, COALESCE_DELAY(2560) },
1745 { SPEED_1000, COALESCE_DELAY(5000) },
1748 #undef COALESCE_DELAY
1750 /* get rx/tx scale vector corresponding to current speed */
1751 static const struct rtl_coalesce_info *
1752 rtl_coalesce_info(struct rtl8169_private *tp)
1754 const struct rtl_coalesce_info *ci;
1756 if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
1757 ci = rtl_coalesce_info_8169;
1759 ci = rtl_coalesce_info_8168_8136;
1761 for (; ci->speed; ci++) {
1762 if (tp->phydev->speed == ci->speed)
1766 return ERR_PTR(-ELNRNG);
1769 static int rtl_get_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
1771 struct rtl8169_private *tp = netdev_priv(dev);
1772 const struct rtl_coalesce_info *ci;
1773 u32 scale, c_us, c_fr;
1776 if (rtl_is_8125(tp))
1779 memset(ec, 0, sizeof(*ec));
1781 /* get rx/tx scale corresponding to current speed and CPlusCmd[0:1] */
1782 ci = rtl_coalesce_info(tp);
1786 scale = ci->scale_nsecs[tp->cp_cmd & INTT_MASK];
1788 intrmit = RTL_R16(tp, IntrMitigate);
1790 c_us = FIELD_GET(RTL_COALESCE_TX_USECS, intrmit);
1791 ec->tx_coalesce_usecs = DIV_ROUND_UP(c_us * scale, 1000);
1793 c_fr = FIELD_GET(RTL_COALESCE_TX_FRAMES, intrmit);
1794 /* ethtool_coalesce states usecs and max_frames must not both be 0 */
1795 ec->tx_max_coalesced_frames = (c_us || c_fr) ? c_fr * 4 : 1;
1797 c_us = FIELD_GET(RTL_COALESCE_RX_USECS, intrmit);
1798 ec->rx_coalesce_usecs = DIV_ROUND_UP(c_us * scale, 1000);
1800 c_fr = FIELD_GET(RTL_COALESCE_RX_FRAMES, intrmit);
1801 ec->rx_max_coalesced_frames = (c_us || c_fr) ? c_fr * 4 : 1;
1806 /* choose appropriate scale factor and CPlusCmd[0:1] for (speed, usec) */
1807 static int rtl_coalesce_choose_scale(struct rtl8169_private *tp, u32 usec,
1810 const struct rtl_coalesce_info *ci;
1813 ci = rtl_coalesce_info(tp);
1817 for (i = 0; i < 4; i++) {
1818 if (usec <= ci->scale_nsecs[i] * RTL_COALESCE_T_MAX / 1000U) {
1820 return ci->scale_nsecs[i];
1827 static int rtl_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
1829 struct rtl8169_private *tp = netdev_priv(dev);
1830 u32 tx_fr = ec->tx_max_coalesced_frames;
1831 u32 rx_fr = ec->rx_max_coalesced_frames;
1832 u32 coal_usec_max, units;
1833 u16 w = 0, cp01 = 0;
1836 if (rtl_is_8125(tp))
1839 if (rx_fr > RTL_COALESCE_FRAME_MAX || tx_fr > RTL_COALESCE_FRAME_MAX)
1842 coal_usec_max = max(ec->rx_coalesce_usecs, ec->tx_coalesce_usecs);
1843 scale = rtl_coalesce_choose_scale(tp, coal_usec_max, &cp01);
1847 /* Accept max_frames=1 we returned in rtl_get_coalesce. Accept it
1848 * not only when usecs=0 because of e.g. the following scenario:
1850 * - both rx_usecs=0 & rx_frames=0 in hardware (no delay on RX)
1851 * - rtl_get_coalesce returns rx_usecs=0, rx_frames=1
1852 * - then user does `ethtool -C eth0 rx-usecs 100`
1854 * Since ethtool sends to kernel whole ethtool_coalesce settings,
1855 * if we want to ignore rx_frames then it has to be set to 0.
1862 /* HW requires time limit to be set if frame limit is set */
1863 if ((tx_fr && !ec->tx_coalesce_usecs) ||
1864 (rx_fr && !ec->rx_coalesce_usecs))
1867 w |= FIELD_PREP(RTL_COALESCE_TX_FRAMES, DIV_ROUND_UP(tx_fr, 4));
1868 w |= FIELD_PREP(RTL_COALESCE_RX_FRAMES, DIV_ROUND_UP(rx_fr, 4));
1870 units = DIV_ROUND_UP(ec->tx_coalesce_usecs * 1000U, scale);
1871 w |= FIELD_PREP(RTL_COALESCE_TX_USECS, units);
1872 units = DIV_ROUND_UP(ec->rx_coalesce_usecs * 1000U, scale);
1873 w |= FIELD_PREP(RTL_COALESCE_RX_USECS, units);
1877 RTL_W16(tp, IntrMitigate, w);
1879 /* Meaning of PktCntrDisable bit changed from RTL8168e-vl */
1880 if (rtl_is_8168evl_up(tp)) {
1881 if (!rx_fr && !tx_fr)
1882 /* disable packet counter */
1883 tp->cp_cmd |= PktCntrDisable;
1885 tp->cp_cmd &= ~PktCntrDisable;
1888 tp->cp_cmd = (tp->cp_cmd & ~INTT_MASK) | cp01;
1889 RTL_W16(tp, CPlusCmd, tp->cp_cmd);
1892 rtl_unlock_work(tp);
1897 static int rtl8169_get_eee(struct net_device *dev, struct ethtool_eee *data)
1899 struct rtl8169_private *tp = netdev_priv(dev);
1900 struct device *d = tp_to_dev(tp);
1903 if (!rtl_supports_eee(tp))
1906 pm_runtime_get_noresume(d);
1908 if (!pm_runtime_active(d)) {
1911 ret = phy_ethtool_get_eee(tp->phydev, data);
1914 pm_runtime_put_noidle(d);
1919 static int rtl8169_set_eee(struct net_device *dev, struct ethtool_eee *data)
1921 struct rtl8169_private *tp = netdev_priv(dev);
1922 struct device *d = tp_to_dev(tp);
1925 if (!rtl_supports_eee(tp))
1928 pm_runtime_get_noresume(d);
1930 if (!pm_runtime_active(d)) {
1935 ret = phy_ethtool_set_eee(tp->phydev, data);
1938 tp->eee_adv = phy_read_mmd(dev->phydev, MDIO_MMD_AN,
1941 pm_runtime_put_noidle(d);
1945 static const struct ethtool_ops rtl8169_ethtool_ops = {
1946 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
1947 ETHTOOL_COALESCE_MAX_FRAMES,
1948 .get_drvinfo = rtl8169_get_drvinfo,
1949 .get_regs_len = rtl8169_get_regs_len,
1950 .get_link = ethtool_op_get_link,
1951 .get_coalesce = rtl_get_coalesce,
1952 .set_coalesce = rtl_set_coalesce,
1953 .get_regs = rtl8169_get_regs,
1954 .get_wol = rtl8169_get_wol,
1955 .set_wol = rtl8169_set_wol,
1956 .get_strings = rtl8169_get_strings,
1957 .get_sset_count = rtl8169_get_sset_count,
1958 .get_ethtool_stats = rtl8169_get_ethtool_stats,
1959 .get_ts_info = ethtool_op_get_ts_info,
1960 .nway_reset = phy_ethtool_nway_reset,
1961 .get_eee = rtl8169_get_eee,
1962 .set_eee = rtl8169_set_eee,
1963 .get_link_ksettings = phy_ethtool_get_link_ksettings,
1964 .set_link_ksettings = phy_ethtool_set_link_ksettings,
1967 static void rtl_enable_eee(struct rtl8169_private *tp)
1969 struct phy_device *phydev = tp->phydev;
1972 /* respect EEE advertisement the user may have set */
1973 if (tp->eee_adv >= 0)
1976 adv = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE);
1979 phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV, adv);
1982 static enum mac_version rtl8169_get_mac_version(u16 xid, bool gmii)
1985 * The driver currently handles the 8168Bf and the 8168Be identically
1986 * but they can be identified more specifically through the test below
1989 * (RTL_R32(tp, TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be
1991 * Same thing for the 8101Eb and the 8101Ec:
1993 * (RTL_R32(tp, TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec
1995 static const struct rtl_mac_info {
1998 enum mac_version ver;
2001 { 0x7cf, 0x608, RTL_GIGA_MAC_VER_60 },
2002 { 0x7c8, 0x608, RTL_GIGA_MAC_VER_61 },
2005 { 0x7cf, 0x54a, RTL_GIGA_MAC_VER_52 },
2007 /* 8168EP family. */
2008 { 0x7cf, 0x502, RTL_GIGA_MAC_VER_51 },
2009 { 0x7cf, 0x501, RTL_GIGA_MAC_VER_50 },
2010 { 0x7cf, 0x500, RTL_GIGA_MAC_VER_49 },
2013 { 0x7cf, 0x541, RTL_GIGA_MAC_VER_46 },
2014 { 0x7cf, 0x540, RTL_GIGA_MAC_VER_45 },
2017 { 0x7cf, 0x5c8, RTL_GIGA_MAC_VER_44 },
2018 { 0x7cf, 0x509, RTL_GIGA_MAC_VER_42 },
2019 { 0x7cf, 0x4c1, RTL_GIGA_MAC_VER_41 },
2020 { 0x7cf, 0x4c0, RTL_GIGA_MAC_VER_40 },
2023 { 0x7c8, 0x488, RTL_GIGA_MAC_VER_38 },
2024 { 0x7cf, 0x481, RTL_GIGA_MAC_VER_36 },
2025 { 0x7cf, 0x480, RTL_GIGA_MAC_VER_35 },
2028 { 0x7c8, 0x2c8, RTL_GIGA_MAC_VER_34 },
2029 { 0x7cf, 0x2c1, RTL_GIGA_MAC_VER_32 },
2030 { 0x7c8, 0x2c0, RTL_GIGA_MAC_VER_33 },
2033 { 0x7cf, 0x281, RTL_GIGA_MAC_VER_25 },
2034 { 0x7c8, 0x280, RTL_GIGA_MAC_VER_26 },
2036 /* 8168DP family. */
2037 { 0x7cf, 0x288, RTL_GIGA_MAC_VER_27 },
2038 { 0x7cf, 0x28a, RTL_GIGA_MAC_VER_28 },
2039 { 0x7cf, 0x28b, RTL_GIGA_MAC_VER_31 },
2042 { 0x7cf, 0x3c9, RTL_GIGA_MAC_VER_23 },
2043 { 0x7cf, 0x3c8, RTL_GIGA_MAC_VER_18 },
2044 { 0x7c8, 0x3c8, RTL_GIGA_MAC_VER_24 },
2045 { 0x7cf, 0x3c0, RTL_GIGA_MAC_VER_19 },
2046 { 0x7cf, 0x3c2, RTL_GIGA_MAC_VER_20 },
2047 { 0x7cf, 0x3c3, RTL_GIGA_MAC_VER_21 },
2048 { 0x7c8, 0x3c0, RTL_GIGA_MAC_VER_22 },
2051 { 0x7cf, 0x380, RTL_GIGA_MAC_VER_12 },
2052 { 0x7c8, 0x380, RTL_GIGA_MAC_VER_17 },
2053 { 0x7c8, 0x300, RTL_GIGA_MAC_VER_11 },
2056 { 0x7c8, 0x448, RTL_GIGA_MAC_VER_39 },
2057 { 0x7c8, 0x440, RTL_GIGA_MAC_VER_37 },
2058 { 0x7cf, 0x409, RTL_GIGA_MAC_VER_29 },
2059 { 0x7c8, 0x408, RTL_GIGA_MAC_VER_30 },
2060 { 0x7cf, 0x349, RTL_GIGA_MAC_VER_08 },
2061 { 0x7cf, 0x249, RTL_GIGA_MAC_VER_08 },
2062 { 0x7cf, 0x348, RTL_GIGA_MAC_VER_07 },
2063 { 0x7cf, 0x248, RTL_GIGA_MAC_VER_07 },
2064 { 0x7cf, 0x340, RTL_GIGA_MAC_VER_13 },
2065 /* RTL8401, reportedly works if treated as RTL8101e */
2066 { 0x7cf, 0x240, RTL_GIGA_MAC_VER_13 },
2067 { 0x7cf, 0x343, RTL_GIGA_MAC_VER_10 },
2068 { 0x7cf, 0x342, RTL_GIGA_MAC_VER_16 },
2069 { 0x7c8, 0x348, RTL_GIGA_MAC_VER_09 },
2070 { 0x7c8, 0x248, RTL_GIGA_MAC_VER_09 },
2071 { 0x7c8, 0x340, RTL_GIGA_MAC_VER_16 },
2072 /* FIXME: where did these entries come from ? -- FR */
2073 { 0xfc8, 0x388, RTL_GIGA_MAC_VER_15 },
2074 { 0xfc8, 0x308, RTL_GIGA_MAC_VER_14 },
2077 { 0xfc8, 0x980, RTL_GIGA_MAC_VER_06 },
2078 { 0xfc8, 0x180, RTL_GIGA_MAC_VER_05 },
2079 { 0xfc8, 0x100, RTL_GIGA_MAC_VER_04 },
2080 { 0xfc8, 0x040, RTL_GIGA_MAC_VER_03 },
2081 { 0xfc8, 0x008, RTL_GIGA_MAC_VER_02 },
2084 { 0x000, 0x000, RTL_GIGA_MAC_NONE }
2086 const struct rtl_mac_info *p = mac_info;
2087 enum mac_version ver;
2089 while ((xid & p->mask) != p->val)
2093 if (ver != RTL_GIGA_MAC_NONE && !gmii) {
2094 if (ver == RTL_GIGA_MAC_VER_42)
2095 ver = RTL_GIGA_MAC_VER_43;
2096 else if (ver == RTL_GIGA_MAC_VER_45)
2097 ver = RTL_GIGA_MAC_VER_47;
2098 else if (ver == RTL_GIGA_MAC_VER_46)
2099 ver = RTL_GIGA_MAC_VER_48;
2105 static void rtl_release_firmware(struct rtl8169_private *tp)
2108 rtl_fw_release_firmware(tp->rtl_fw);
2114 void r8169_apply_firmware(struct rtl8169_private *tp)
2116 /* TODO: release firmware if rtl_fw_write_firmware signals failure. */
2118 rtl_fw_write_firmware(tp, tp->rtl_fw);
2121 static void rtl8168_config_eee_mac(struct rtl8169_private *tp)
2123 /* Adjust EEE LED frequency */
2124 if (tp->mac_version != RTL_GIGA_MAC_VER_38)
2125 RTL_W8(tp, EEE_LED, RTL_R8(tp, EEE_LED) & ~0x07);
2127 rtl_eri_set_bits(tp, 0x1b0, 0x0003);
2130 static void rtl8125_config_eee_mac(struct rtl8169_private *tp)
2132 r8168_mac_ocp_modify(tp, 0xe040, 0, BIT(1) | BIT(0));
2133 r8168_mac_ocp_modify(tp, 0xeb62, 0, BIT(2) | BIT(1));
2136 static void rtl_rar_exgmac_set(struct rtl8169_private *tp, u8 *addr)
2139 addr[0] | (addr[1] << 8),
2140 addr[2] | (addr[3] << 8),
2141 addr[4] | (addr[5] << 8)
2144 rtl_eri_write(tp, 0xe0, ERIAR_MASK_1111, w[0] | (w[1] << 16));
2145 rtl_eri_write(tp, 0xe4, ERIAR_MASK_1111, w[2]);
2146 rtl_eri_write(tp, 0xf0, ERIAR_MASK_1111, w[0] << 16);
2147 rtl_eri_write(tp, 0xf4, ERIAR_MASK_1111, w[1] | (w[2] << 16));
2150 u16 rtl8168h_2_get_adc_bias_ioffset(struct rtl8169_private *tp)
2152 u16 data1, data2, ioffset;
2154 r8168_mac_ocp_write(tp, 0xdd02, 0x807d);
2155 data1 = r8168_mac_ocp_read(tp, 0xdd02);
2156 data2 = r8168_mac_ocp_read(tp, 0xdd00);
2158 ioffset = (data2 >> 1) & 0x7ff8;
2159 ioffset |= data2 & 0x0007;
2166 static void rtl_schedule_task(struct rtl8169_private *tp, enum rtl_flag flag)
2168 set_bit(flag, tp->wk.flags);
2169 schedule_work(&tp->wk.work);
2172 static void rtl8169_init_phy(struct rtl8169_private *tp)
2174 r8169_hw_phy_config(tp, tp->phydev, tp->mac_version);
2176 if (tp->mac_version <= RTL_GIGA_MAC_VER_06) {
2177 pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40);
2178 pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08);
2179 /* set undocumented MAC Reg C+CR Offset 0x82h */
2180 RTL_W8(tp, 0x82, 0x01);
2183 if (tp->mac_version == RTL_GIGA_MAC_VER_05 &&
2184 tp->pci_dev->subsystem_vendor == PCI_VENDOR_ID_GIGABYTE &&
2185 tp->pci_dev->subsystem_device == 0xe000)
2186 phy_write_paged(tp->phydev, 0x0001, 0x10, 0xf01b);
2188 /* We may have called phy_speed_down before */
2189 phy_speed_up(tp->phydev);
2191 if (rtl_supports_eee(tp))
2194 genphy_soft_reset(tp->phydev);
2197 static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr)
2201 rtl_unlock_config_regs(tp);
2203 RTL_W32(tp, MAC4, addr[4] | addr[5] << 8);
2206 RTL_W32(tp, MAC0, addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24);
2209 if (tp->mac_version == RTL_GIGA_MAC_VER_34)
2210 rtl_rar_exgmac_set(tp, addr);
2212 rtl_lock_config_regs(tp);
2214 rtl_unlock_work(tp);
2217 static int rtl_set_mac_address(struct net_device *dev, void *p)
2219 struct rtl8169_private *tp = netdev_priv(dev);
2220 struct device *d = tp_to_dev(tp);
2223 ret = eth_mac_addr(dev, p);
2227 pm_runtime_get_noresume(d);
2229 if (pm_runtime_active(d))
2230 rtl_rar_set(tp, dev->dev_addr);
2232 pm_runtime_put_noidle(d);
2237 static void rtl_wol_suspend_quirk(struct rtl8169_private *tp)
2239 switch (tp->mac_version) {
2240 case RTL_GIGA_MAC_VER_25:
2241 case RTL_GIGA_MAC_VER_26:
2242 case RTL_GIGA_MAC_VER_29:
2243 case RTL_GIGA_MAC_VER_30:
2244 case RTL_GIGA_MAC_VER_32:
2245 case RTL_GIGA_MAC_VER_33:
2246 case RTL_GIGA_MAC_VER_34:
2247 case RTL_GIGA_MAC_VER_37 ... RTL_GIGA_MAC_VER_61:
2248 RTL_W32(tp, RxConfig, RTL_R32(tp, RxConfig) |
2249 AcceptBroadcast | AcceptMulticast | AcceptMyPhys);
2256 static void rtl_pll_power_down(struct rtl8169_private *tp)
2258 if (r8168_check_dash(tp))
2261 if (tp->mac_version == RTL_GIGA_MAC_VER_32 ||
2262 tp->mac_version == RTL_GIGA_MAC_VER_33)
2263 rtl_ephy_write(tp, 0x19, 0xff64);
2265 if (device_may_wakeup(tp_to_dev(tp))) {
2266 phy_speed_down(tp->phydev, false);
2267 rtl_wol_suspend_quirk(tp);
2271 switch (tp->mac_version) {
2272 case RTL_GIGA_MAC_VER_25 ... RTL_GIGA_MAC_VER_33:
2273 case RTL_GIGA_MAC_VER_37:
2274 case RTL_GIGA_MAC_VER_39:
2275 case RTL_GIGA_MAC_VER_43:
2276 case RTL_GIGA_MAC_VER_44:
2277 case RTL_GIGA_MAC_VER_45:
2278 case RTL_GIGA_MAC_VER_46:
2279 case RTL_GIGA_MAC_VER_47:
2280 case RTL_GIGA_MAC_VER_48:
2281 case RTL_GIGA_MAC_VER_50:
2282 case RTL_GIGA_MAC_VER_51:
2283 case RTL_GIGA_MAC_VER_52:
2284 case RTL_GIGA_MAC_VER_60:
2285 case RTL_GIGA_MAC_VER_61:
2286 RTL_W8(tp, PMCH, RTL_R8(tp, PMCH) & ~0x80);
2288 case RTL_GIGA_MAC_VER_40:
2289 case RTL_GIGA_MAC_VER_41:
2290 case RTL_GIGA_MAC_VER_49:
2291 rtl_eri_clear_bits(tp, 0x1a8, 0xfc000000);
2292 RTL_W8(tp, PMCH, RTL_R8(tp, PMCH) & ~0x80);
2299 static void rtl_pll_power_up(struct rtl8169_private *tp)
2301 switch (tp->mac_version) {
2302 case RTL_GIGA_MAC_VER_25 ... RTL_GIGA_MAC_VER_33:
2303 case RTL_GIGA_MAC_VER_37:
2304 case RTL_GIGA_MAC_VER_39:
2305 case RTL_GIGA_MAC_VER_43:
2306 RTL_W8(tp, PMCH, RTL_R8(tp, PMCH) | 0x80);
2308 case RTL_GIGA_MAC_VER_44:
2309 case RTL_GIGA_MAC_VER_45:
2310 case RTL_GIGA_MAC_VER_46:
2311 case RTL_GIGA_MAC_VER_47:
2312 case RTL_GIGA_MAC_VER_48:
2313 case RTL_GIGA_MAC_VER_50:
2314 case RTL_GIGA_MAC_VER_51:
2315 case RTL_GIGA_MAC_VER_52:
2316 case RTL_GIGA_MAC_VER_60:
2317 case RTL_GIGA_MAC_VER_61:
2318 RTL_W8(tp, PMCH, RTL_R8(tp, PMCH) | 0xc0);
2320 case RTL_GIGA_MAC_VER_40:
2321 case RTL_GIGA_MAC_VER_41:
2322 case RTL_GIGA_MAC_VER_49:
2323 RTL_W8(tp, PMCH, RTL_R8(tp, PMCH) | 0xc0);
2324 rtl_eri_set_bits(tp, 0x1a8, 0xfc000000);
2330 phy_resume(tp->phydev);
2333 static void rtl_init_rxcfg(struct rtl8169_private *tp)
2335 switch (tp->mac_version) {
2336 case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
2337 case RTL_GIGA_MAC_VER_10 ... RTL_GIGA_MAC_VER_17:
2338 RTL_W32(tp, RxConfig, RX_FIFO_THRESH | RX_DMA_BURST);
2340 case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_24:
2341 case RTL_GIGA_MAC_VER_34 ... RTL_GIGA_MAC_VER_36:
2342 case RTL_GIGA_MAC_VER_38:
2343 RTL_W32(tp, RxConfig, RX128_INT_EN | RX_MULTI_EN | RX_DMA_BURST);
2345 case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_52:
2346 RTL_W32(tp, RxConfig, RX128_INT_EN | RX_MULTI_EN | RX_DMA_BURST | RX_EARLY_OFF);
2348 case RTL_GIGA_MAC_VER_60 ... RTL_GIGA_MAC_VER_61:
2349 RTL_W32(tp, RxConfig, RX_FETCH_DFLT_8125 | RX_DMA_BURST);
2352 RTL_W32(tp, RxConfig, RX128_INT_EN | RX_DMA_BURST);
2357 static void rtl8169_init_ring_indexes(struct rtl8169_private *tp)
2359 tp->dirty_tx = tp->cur_tx = tp->cur_rx = 0;
2362 static void r8168c_hw_jumbo_enable(struct rtl8169_private *tp)
2364 RTL_W8(tp, Config3, RTL_R8(tp, Config3) | Jumbo_En0);
2365 RTL_W8(tp, Config4, RTL_R8(tp, Config4) | Jumbo_En1);
2368 static void r8168c_hw_jumbo_disable(struct rtl8169_private *tp)
2370 RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Jumbo_En0);
2371 RTL_W8(tp, Config4, RTL_R8(tp, Config4) & ~Jumbo_En1);
2374 static void r8168dp_hw_jumbo_enable(struct rtl8169_private *tp)
2376 RTL_W8(tp, Config3, RTL_R8(tp, Config3) | Jumbo_En0);
2379 static void r8168dp_hw_jumbo_disable(struct rtl8169_private *tp)
2381 RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Jumbo_En0);
2384 static void r8168e_hw_jumbo_enable(struct rtl8169_private *tp)
2386 RTL_W8(tp, MaxTxPacketSize, 0x3f);
2387 RTL_W8(tp, Config3, RTL_R8(tp, Config3) | Jumbo_En0);
2388 RTL_W8(tp, Config4, RTL_R8(tp, Config4) | 0x01);
2391 static void r8168e_hw_jumbo_disable(struct rtl8169_private *tp)
2393 RTL_W8(tp, MaxTxPacketSize, 0x0c);
2394 RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Jumbo_En0);
2395 RTL_W8(tp, Config4, RTL_R8(tp, Config4) & ~0x01);
2398 static void r8168b_1_hw_jumbo_enable(struct rtl8169_private *tp)
2400 RTL_W8(tp, Config4, RTL_R8(tp, Config4) | (1 << 0));
2403 static void r8168b_1_hw_jumbo_disable(struct rtl8169_private *tp)
2405 RTL_W8(tp, Config4, RTL_R8(tp, Config4) & ~(1 << 0));
2408 static void rtl_jumbo_config(struct rtl8169_private *tp)
2410 bool jumbo = tp->dev->mtu > ETH_DATA_LEN;
2412 rtl_unlock_config_regs(tp);
2413 switch (tp->mac_version) {
2414 case RTL_GIGA_MAC_VER_12:
2415 case RTL_GIGA_MAC_VER_17:
2417 pcie_set_readrq(tp->pci_dev, 512);
2418 r8168b_1_hw_jumbo_enable(tp);
2420 r8168b_1_hw_jumbo_disable(tp);
2423 case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_26:
2425 pcie_set_readrq(tp->pci_dev, 512);
2426 r8168c_hw_jumbo_enable(tp);
2428 r8168c_hw_jumbo_disable(tp);
2431 case RTL_GIGA_MAC_VER_27 ... RTL_GIGA_MAC_VER_28:
2433 r8168dp_hw_jumbo_enable(tp);
2435 r8168dp_hw_jumbo_disable(tp);
2437 case RTL_GIGA_MAC_VER_31 ... RTL_GIGA_MAC_VER_33:
2439 pcie_set_readrq(tp->pci_dev, 512);
2440 r8168e_hw_jumbo_enable(tp);
2442 r8168e_hw_jumbo_disable(tp);
2448 rtl_lock_config_regs(tp);
2450 if (!jumbo && pci_is_pcie(tp->pci_dev) && tp->supports_gmii)
2451 pcie_set_readrq(tp->pci_dev, 4096);
2454 DECLARE_RTL_COND(rtl_chipcmd_cond)
2456 return RTL_R8(tp, ChipCmd) & CmdReset;
2459 static void rtl_hw_reset(struct rtl8169_private *tp)
2461 RTL_W8(tp, ChipCmd, CmdReset);
2463 rtl_loop_wait_low(tp, &rtl_chipcmd_cond, 100, 100);
2466 static void rtl_request_firmware(struct rtl8169_private *tp)
2468 struct rtl_fw *rtl_fw;
2470 /* firmware loaded already or no firmware available */
2471 if (tp->rtl_fw || !tp->fw_name)
2474 rtl_fw = kzalloc(sizeof(*rtl_fw), GFP_KERNEL);
2478 rtl_fw->phy_write = rtl_writephy;
2479 rtl_fw->phy_read = rtl_readphy;
2480 rtl_fw->mac_mcu_write = mac_mcu_write;
2481 rtl_fw->mac_mcu_read = mac_mcu_read;
2482 rtl_fw->fw_name = tp->fw_name;
2483 rtl_fw->dev = tp_to_dev(tp);
2485 if (rtl_fw_request_firmware(rtl_fw))
2488 tp->rtl_fw = rtl_fw;
2491 static void rtl_rx_close(struct rtl8169_private *tp)
2493 RTL_W32(tp, RxConfig, RTL_R32(tp, RxConfig) & ~RX_CONFIG_ACCEPT_MASK);
2496 DECLARE_RTL_COND(rtl_npq_cond)
2498 return RTL_R8(tp, TxPoll) & NPQ;
2501 DECLARE_RTL_COND(rtl_txcfg_empty_cond)
2503 return RTL_R32(tp, TxConfig) & TXCFG_EMPTY;
2506 DECLARE_RTL_COND(rtl_rxtx_empty_cond)
2508 return (RTL_R8(tp, MCU) & RXTX_EMPTY) == RXTX_EMPTY;
2511 static void rtl_wait_txrx_fifo_empty(struct rtl8169_private *tp)
2513 switch (tp->mac_version) {
2514 case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_52:
2515 rtl_loop_wait_high(tp, &rtl_txcfg_empty_cond, 100, 42);
2516 rtl_loop_wait_high(tp, &rtl_rxtx_empty_cond, 100, 42);
2518 case RTL_GIGA_MAC_VER_60 ... RTL_GIGA_MAC_VER_61:
2519 rtl_loop_wait_high(tp, &rtl_rxtx_empty_cond, 100, 42);
2526 static void rtl_enable_rxdvgate(struct rtl8169_private *tp)
2528 RTL_W32(tp, MISC, RTL_R32(tp, MISC) | RXDV_GATED_EN);
2530 rtl_wait_txrx_fifo_empty(tp);
2533 static void rtl8169_hw_reset(struct rtl8169_private *tp)
2535 /* Disable interrupts */
2536 rtl8169_irq_mask_and_ack(tp);
2540 switch (tp->mac_version) {
2541 case RTL_GIGA_MAC_VER_27:
2542 case RTL_GIGA_MAC_VER_28:
2543 case RTL_GIGA_MAC_VER_31:
2544 rtl_loop_wait_low(tp, &rtl_npq_cond, 20, 2000);
2546 case RTL_GIGA_MAC_VER_34 ... RTL_GIGA_MAC_VER_38:
2547 RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) | StopReq);
2548 rtl_loop_wait_high(tp, &rtl_txcfg_empty_cond, 100, 666);
2550 case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_61:
2551 rtl_enable_rxdvgate(tp);
2555 RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) | StopReq);
2563 static void rtl_set_tx_config_registers(struct rtl8169_private *tp)
2565 u32 val = TX_DMA_BURST << TxDMAShift |
2566 InterFrameGap << TxInterFrameGapShift;
2568 if (rtl_is_8168evl_up(tp))
2569 val |= TXCFG_AUTO_FIFO;
2571 RTL_W32(tp, TxConfig, val);
2574 static void rtl_set_rx_max_size(struct rtl8169_private *tp)
2576 /* Low hurts. Let's disable the filtering. */
2577 RTL_W16(tp, RxMaxSize, R8169_RX_BUF_SIZE + 1);
2580 static void rtl_set_rx_tx_desc_registers(struct rtl8169_private *tp)
2583 * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh
2584 * register to be written before TxDescAddrLow to work.
2585 * Switching from MMIO to I/O access fixes the issue as well.
2587 RTL_W32(tp, TxDescStartAddrHigh, ((u64) tp->TxPhyAddr) >> 32);
2588 RTL_W32(tp, TxDescStartAddrLow, ((u64) tp->TxPhyAddr) & DMA_BIT_MASK(32));
2589 RTL_W32(tp, RxDescAddrHigh, ((u64) tp->RxPhyAddr) >> 32);
2590 RTL_W32(tp, RxDescAddrLow, ((u64) tp->RxPhyAddr) & DMA_BIT_MASK(32));
2593 static void rtl8169_set_magic_reg(struct rtl8169_private *tp)
2597 if (tp->mac_version == RTL_GIGA_MAC_VER_05)
2599 else if (tp->mac_version == RTL_GIGA_MAC_VER_06)
2604 if (RTL_R8(tp, Config2) & PCI_Clock_66MHz)
2607 RTL_W32(tp, 0x7c, val);
2610 static void rtl_set_rx_mode(struct net_device *dev)
2612 u32 rx_mode = AcceptBroadcast | AcceptMyPhys | AcceptMulticast;
2613 /* Multicast hash filter */
2614 u32 mc_filter[2] = { 0xffffffff, 0xffffffff };
2615 struct rtl8169_private *tp = netdev_priv(dev);
2618 if (dev->flags & IFF_PROMISC) {
2619 rx_mode |= AcceptAllPhys;
2620 } else if (netdev_mc_count(dev) > MC_FILTER_LIMIT ||
2621 dev->flags & IFF_ALLMULTI ||
2622 tp->mac_version == RTL_GIGA_MAC_VER_35) {
2623 /* accept all multicasts */
2624 } else if (netdev_mc_empty(dev)) {
2625 rx_mode &= ~AcceptMulticast;
2627 struct netdev_hw_addr *ha;
2629 mc_filter[1] = mc_filter[0] = 0;
2630 netdev_for_each_mc_addr(ha, dev) {
2631 u32 bit_nr = eth_hw_addr_crc(ha) >> 26;
2632 mc_filter[bit_nr >> 5] |= BIT(bit_nr & 31);
2635 if (tp->mac_version > RTL_GIGA_MAC_VER_06) {
2637 mc_filter[0] = swab32(mc_filter[1]);
2638 mc_filter[1] = swab32(tmp);
2642 RTL_W32(tp, MAR0 + 4, mc_filter[1]);
2643 RTL_W32(tp, MAR0 + 0, mc_filter[0]);
2645 tmp = RTL_R32(tp, RxConfig);
2646 RTL_W32(tp, RxConfig, (tmp & ~RX_CONFIG_ACCEPT_OK_MASK) | rx_mode);
2649 DECLARE_RTL_COND(rtl_csiar_cond)
2651 return RTL_R32(tp, CSIAR) & CSIAR_FLAG;
2654 static void rtl_csi_write(struct rtl8169_private *tp, int addr, int value)
2656 u32 func = PCI_FUNC(tp->pci_dev->devfn);
2658 RTL_W32(tp, CSIDR, value);
2659 RTL_W32(tp, CSIAR, CSIAR_WRITE_CMD | (addr & CSIAR_ADDR_MASK) |
2660 CSIAR_BYTE_ENABLE | func << 16);
2662 rtl_loop_wait_low(tp, &rtl_csiar_cond, 10, 100);
2665 static u32 rtl_csi_read(struct rtl8169_private *tp, int addr)
2667 u32 func = PCI_FUNC(tp->pci_dev->devfn);
2669 RTL_W32(tp, CSIAR, (addr & CSIAR_ADDR_MASK) | func << 16 |
2672 return rtl_loop_wait_high(tp, &rtl_csiar_cond, 10, 100) ?
2673 RTL_R32(tp, CSIDR) : ~0;
2676 static void rtl_csi_access_enable(struct rtl8169_private *tp, u8 val)
2678 struct pci_dev *pdev = tp->pci_dev;
2681 /* According to Realtek the value at config space address 0x070f
2682 * controls the L0s/L1 entrance latency. We try standard ECAM access
2683 * first and if it fails fall back to CSI.
2685 if (pdev->cfg_size > 0x070f &&
2686 pci_write_config_byte(pdev, 0x070f, val) == PCIBIOS_SUCCESSFUL)
2689 netdev_notice_once(tp->dev,
2690 "No native access to PCI extended config space, falling back to CSI\n");
2691 csi = rtl_csi_read(tp, 0x070c) & 0x00ffffff;
2692 rtl_csi_write(tp, 0x070c, csi | val << 24);
2695 static void rtl_set_def_aspm_entry_latency(struct rtl8169_private *tp)
2697 rtl_csi_access_enable(tp, 0x27);
2701 unsigned int offset;
2706 static void __rtl_ephy_init(struct rtl8169_private *tp,
2707 const struct ephy_info *e, int len)
2712 w = (rtl_ephy_read(tp, e->offset) & ~e->mask) | e->bits;
2713 rtl_ephy_write(tp, e->offset, w);
2718 #define rtl_ephy_init(tp, a) __rtl_ephy_init(tp, a, ARRAY_SIZE(a))
2720 static void rtl_disable_clock_request(struct rtl8169_private *tp)
2722 pcie_capability_clear_word(tp->pci_dev, PCI_EXP_LNKCTL,
2723 PCI_EXP_LNKCTL_CLKREQ_EN);
2726 static void rtl_enable_clock_request(struct rtl8169_private *tp)
2728 pcie_capability_set_word(tp->pci_dev, PCI_EXP_LNKCTL,
2729 PCI_EXP_LNKCTL_CLKREQ_EN);
2732 static void rtl_pcie_state_l2l3_disable(struct rtl8169_private *tp)
2734 /* work around an issue when PCI reset occurs during L2/L3 state */
2735 RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Rdy_to_L23);
2738 static void rtl_hw_aspm_clkreq_enable(struct rtl8169_private *tp, bool enable)
2740 /* Don't enable ASPM in the chip if OS can't control ASPM */
2741 if (enable && tp->aspm_manageable) {
2742 RTL_W8(tp, Config5, RTL_R8(tp, Config5) | ASPM_en);
2743 RTL_W8(tp, Config2, RTL_R8(tp, Config2) | ClkReqEn);
2745 RTL_W8(tp, Config2, RTL_R8(tp, Config2) & ~ClkReqEn);
2746 RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~ASPM_en);
2752 static void rtl_set_fifo_size(struct rtl8169_private *tp, u16 rx_stat,
2753 u16 tx_stat, u16 rx_dyn, u16 tx_dyn)
2755 /* Usage of dynamic vs. static FIFO is controlled by bit
2756 * TXCFG_AUTO_FIFO. Exact meaning of FIFO values isn't known.
2758 rtl_eri_write(tp, 0xc8, ERIAR_MASK_1111, (rx_stat << 16) | rx_dyn);
2759 rtl_eri_write(tp, 0xe8, ERIAR_MASK_1111, (tx_stat << 16) | tx_dyn);
2762 static void rtl8168g_set_pause_thresholds(struct rtl8169_private *tp,
2765 /* FIFO thresholds for pause flow control */
2766 rtl_eri_write(tp, 0xcc, ERIAR_MASK_0001, low);
2767 rtl_eri_write(tp, 0xd0, ERIAR_MASK_0001, high);
2770 static void rtl_hw_start_8168b(struct rtl8169_private *tp)
2772 RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
2775 static void __rtl_hw_start_8168cp(struct rtl8169_private *tp)
2777 RTL_W8(tp, Config1, RTL_R8(tp, Config1) | Speed_down);
2779 RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
2781 rtl_disable_clock_request(tp);
2784 static void rtl_hw_start_8168cp_1(struct rtl8169_private *tp)
2786 static const struct ephy_info e_info_8168cp[] = {
2787 { 0x01, 0, 0x0001 },
2788 { 0x02, 0x0800, 0x1000 },
2789 { 0x03, 0, 0x0042 },
2790 { 0x06, 0x0080, 0x0000 },
2794 rtl_set_def_aspm_entry_latency(tp);
2796 rtl_ephy_init(tp, e_info_8168cp);
2798 __rtl_hw_start_8168cp(tp);
2801 static void rtl_hw_start_8168cp_2(struct rtl8169_private *tp)
2803 rtl_set_def_aspm_entry_latency(tp);
2805 RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
2808 static void rtl_hw_start_8168cp_3(struct rtl8169_private *tp)
2810 rtl_set_def_aspm_entry_latency(tp);
2812 RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
2815 RTL_W8(tp, DBG_REG, 0x20);
2818 static void rtl_hw_start_8168c_1(struct rtl8169_private *tp)
2820 static const struct ephy_info e_info_8168c_1[] = {
2821 { 0x02, 0x0800, 0x1000 },
2822 { 0x03, 0, 0x0002 },
2823 { 0x06, 0x0080, 0x0000 }
2826 rtl_set_def_aspm_entry_latency(tp);
2828 RTL_W8(tp, DBG_REG, 0x06 | FIX_NAK_1 | FIX_NAK_2);
2830 rtl_ephy_init(tp, e_info_8168c_1);
2832 __rtl_hw_start_8168cp(tp);
2835 static void rtl_hw_start_8168c_2(struct rtl8169_private *tp)
2837 static const struct ephy_info e_info_8168c_2[] = {
2838 { 0x01, 0, 0x0001 },
2839 { 0x03, 0x0400, 0x0020 }
2842 rtl_set_def_aspm_entry_latency(tp);
2844 rtl_ephy_init(tp, e_info_8168c_2);
2846 __rtl_hw_start_8168cp(tp);
2849 static void rtl_hw_start_8168c_3(struct rtl8169_private *tp)
2851 rtl_hw_start_8168c_2(tp);
2854 static void rtl_hw_start_8168c_4(struct rtl8169_private *tp)
2856 rtl_set_def_aspm_entry_latency(tp);
2858 __rtl_hw_start_8168cp(tp);
2861 static void rtl_hw_start_8168d(struct rtl8169_private *tp)
2863 rtl_set_def_aspm_entry_latency(tp);
2865 rtl_disable_clock_request(tp);
2868 static void rtl_hw_start_8168d_4(struct rtl8169_private *tp)
2870 static const struct ephy_info e_info_8168d_4[] = {
2871 { 0x0b, 0x0000, 0x0048 },
2872 { 0x19, 0x0020, 0x0050 },
2873 { 0x0c, 0x0100, 0x0020 },
2874 { 0x10, 0x0004, 0x0000 },
2877 rtl_set_def_aspm_entry_latency(tp);
2879 rtl_ephy_init(tp, e_info_8168d_4);
2881 rtl_enable_clock_request(tp);
2884 static void rtl_hw_start_8168e_1(struct rtl8169_private *tp)
2886 static const struct ephy_info e_info_8168e_1[] = {
2887 { 0x00, 0x0200, 0x0100 },
2888 { 0x00, 0x0000, 0x0004 },
2889 { 0x06, 0x0002, 0x0001 },
2890 { 0x06, 0x0000, 0x0030 },
2891 { 0x07, 0x0000, 0x2000 },
2892 { 0x00, 0x0000, 0x0020 },
2893 { 0x03, 0x5800, 0x2000 },
2894 { 0x03, 0x0000, 0x0001 },
2895 { 0x01, 0x0800, 0x1000 },
2896 { 0x07, 0x0000, 0x4000 },
2897 { 0x1e, 0x0000, 0x2000 },
2898 { 0x19, 0xffff, 0xfe6c },
2899 { 0x0a, 0x0000, 0x0040 }
2902 rtl_set_def_aspm_entry_latency(tp);
2904 rtl_ephy_init(tp, e_info_8168e_1);
2906 rtl_disable_clock_request(tp);
2908 /* Reset tx FIFO pointer */
2909 RTL_W32(tp, MISC, RTL_R32(tp, MISC) | TXPLA_RST);
2910 RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~TXPLA_RST);
2912 RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~Spi_en);
2915 static void rtl_hw_start_8168e_2(struct rtl8169_private *tp)
2917 static const struct ephy_info e_info_8168e_2[] = {
2918 { 0x09, 0x0000, 0x0080 },
2919 { 0x19, 0x0000, 0x0224 },
2920 { 0x00, 0x0000, 0x0004 },
2921 { 0x0c, 0x3df0, 0x0200 },
2924 rtl_set_def_aspm_entry_latency(tp);
2926 rtl_ephy_init(tp, e_info_8168e_2);
2928 rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
2929 rtl_eri_write(tp, 0xb8, ERIAR_MASK_1111, 0x0000);
2930 rtl_set_fifo_size(tp, 0x10, 0x10, 0x02, 0x06);
2931 rtl_eri_set_bits(tp, 0x0d4, 0x1f00);
2932 rtl_eri_set_bits(tp, 0x1d0, BIT(1));
2933 rtl_reset_packet_filter(tp);
2934 rtl_eri_set_bits(tp, 0x1b0, BIT(4));
2935 rtl_eri_write(tp, 0xcc, ERIAR_MASK_1111, 0x00000050);
2936 rtl_eri_write(tp, 0xd0, ERIAR_MASK_1111, 0x07ff0060);
2938 rtl_disable_clock_request(tp);
2940 RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
2942 rtl8168_config_eee_mac(tp);
2944 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) | PFM_EN);
2945 RTL_W32(tp, MISC, RTL_R32(tp, MISC) | PWM_EN);
2946 RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~Spi_en);
2948 rtl_hw_aspm_clkreq_enable(tp, true);
2951 static void rtl_hw_start_8168f(struct rtl8169_private *tp)
2953 rtl_set_def_aspm_entry_latency(tp);
2955 rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
2956 rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
2957 rtl_set_fifo_size(tp, 0x10, 0x10, 0x02, 0x06);
2958 rtl_reset_packet_filter(tp);
2959 rtl_eri_set_bits(tp, 0x1b0, BIT(4));
2960 rtl_eri_set_bits(tp, 0x1d0, BIT(4));
2961 rtl_eri_write(tp, 0xcc, ERIAR_MASK_1111, 0x00000050);
2962 rtl_eri_write(tp, 0xd0, ERIAR_MASK_1111, 0x00000060);
2964 rtl_disable_clock_request(tp);
2966 RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
2967 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) | PFM_EN);
2968 RTL_W32(tp, MISC, RTL_R32(tp, MISC) | PWM_EN);
2969 RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~Spi_en);
2971 rtl8168_config_eee_mac(tp);
2974 static void rtl_hw_start_8168f_1(struct rtl8169_private *tp)
2976 static const struct ephy_info e_info_8168f_1[] = {
2977 { 0x06, 0x00c0, 0x0020 },
2978 { 0x08, 0x0001, 0x0002 },
2979 { 0x09, 0x0000, 0x0080 },
2980 { 0x19, 0x0000, 0x0224 },
2981 { 0x00, 0x0000, 0x0004 },
2982 { 0x0c, 0x3df0, 0x0200 },
2985 rtl_hw_start_8168f(tp);
2987 rtl_ephy_init(tp, e_info_8168f_1);
2989 rtl_w0w1_eri(tp, 0x0d4, 0x0c00, 0xff00);
2992 static void rtl_hw_start_8411(struct rtl8169_private *tp)
2994 static const struct ephy_info e_info_8168f_1[] = {
2995 { 0x06, 0x00c0, 0x0020 },
2996 { 0x0f, 0xffff, 0x5200 },
2997 { 0x19, 0x0000, 0x0224 },
2998 { 0x00, 0x0000, 0x0004 },
2999 { 0x0c, 0x3df0, 0x0200 },
3002 rtl_hw_start_8168f(tp);
3003 rtl_pcie_state_l2l3_disable(tp);
3005 rtl_ephy_init(tp, e_info_8168f_1);
3007 rtl_eri_set_bits(tp, 0x0d4, 0x0c00);
3010 static void rtl_hw_start_8168g(struct rtl8169_private *tp)
3012 rtl_set_fifo_size(tp, 0x08, 0x10, 0x02, 0x06);
3013 rtl8168g_set_pause_thresholds(tp, 0x38, 0x48);
3015 rtl_set_def_aspm_entry_latency(tp);
3017 rtl_reset_packet_filter(tp);
3018 rtl_eri_write(tp, 0x2f8, ERIAR_MASK_0011, 0x1d8f);
3020 RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~RXDV_GATED_EN);
3022 rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
3023 rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
3024 rtl_eri_set_bits(tp, 0x0d4, 0x1f80);
3026 rtl8168_config_eee_mac(tp);
3028 rtl_w0w1_eri(tp, 0x2fc, 0x01, 0x06);
3029 rtl_eri_clear_bits(tp, 0x1b0, BIT(12));
3031 rtl_pcie_state_l2l3_disable(tp);
3034 static void rtl_hw_start_8168g_1(struct rtl8169_private *tp)
3036 static const struct ephy_info e_info_8168g_1[] = {
3037 { 0x00, 0x0008, 0x0000 },
3038 { 0x0c, 0x3ff0, 0x0820 },
3039 { 0x1e, 0x0000, 0x0001 },
3040 { 0x19, 0x8000, 0x0000 }
3043 rtl_hw_start_8168g(tp);
3045 /* disable aspm and clock request before access ephy */
3046 rtl_hw_aspm_clkreq_enable(tp, false);
3047 rtl_ephy_init(tp, e_info_8168g_1);
3048 rtl_hw_aspm_clkreq_enable(tp, true);
3051 static void rtl_hw_start_8168g_2(struct rtl8169_private *tp)
3053 static const struct ephy_info e_info_8168g_2[] = {
3054 { 0x00, 0x0008, 0x0000 },
3055 { 0x0c, 0x3ff0, 0x0820 },
3056 { 0x19, 0xffff, 0x7c00 },
3057 { 0x1e, 0xffff, 0x20eb },
3058 { 0x0d, 0xffff, 0x1666 },
3059 { 0x00, 0xffff, 0x10a3 },
3060 { 0x06, 0xffff, 0xf050 },
3061 { 0x04, 0x0000, 0x0010 },
3062 { 0x1d, 0x4000, 0x0000 },
3065 rtl_hw_start_8168g(tp);
3067 /* disable aspm and clock request before access ephy */
3068 rtl_hw_aspm_clkreq_enable(tp, false);
3069 rtl_ephy_init(tp, e_info_8168g_2);
3072 static void rtl_hw_start_8411_2(struct rtl8169_private *tp)
3074 static const struct ephy_info e_info_8411_2[] = {
3075 { 0x00, 0x0008, 0x0000 },
3076 { 0x0c, 0x37d0, 0x0820 },
3077 { 0x1e, 0x0000, 0x0001 },
3078 { 0x19, 0x8021, 0x0000 },
3079 { 0x1e, 0x0000, 0x2000 },
3080 { 0x0d, 0x0100, 0x0200 },
3081 { 0x00, 0x0000, 0x0080 },
3082 { 0x06, 0x0000, 0x0010 },
3083 { 0x04, 0x0000, 0x0010 },
3084 { 0x1d, 0x0000, 0x4000 },
3087 rtl_hw_start_8168g(tp);
3089 /* disable aspm and clock request before access ephy */
3090 rtl_hw_aspm_clkreq_enable(tp, false);
3091 rtl_ephy_init(tp, e_info_8411_2);
3093 /* The following Realtek-provided magic fixes an issue with the RX unit
3094 * getting confused after the PHY having been powered-down.
3096 r8168_mac_ocp_write(tp, 0xFC28, 0x0000);
3097 r8168_mac_ocp_write(tp, 0xFC2A, 0x0000);
3098 r8168_mac_ocp_write(tp, 0xFC2C, 0x0000);
3099 r8168_mac_ocp_write(tp, 0xFC2E, 0x0000);
3100 r8168_mac_ocp_write(tp, 0xFC30, 0x0000);
3101 r8168_mac_ocp_write(tp, 0xFC32, 0x0000);
3102 r8168_mac_ocp_write(tp, 0xFC34, 0x0000);
3103 r8168_mac_ocp_write(tp, 0xFC36, 0x0000);
3105 r8168_mac_ocp_write(tp, 0xFC26, 0x0000);
3107 r8168_mac_ocp_write(tp, 0xF800, 0xE008);
3108 r8168_mac_ocp_write(tp, 0xF802, 0xE00A);
3109 r8168_mac_ocp_write(tp, 0xF804, 0xE00C);
3110 r8168_mac_ocp_write(tp, 0xF806, 0xE00E);
3111 r8168_mac_ocp_write(tp, 0xF808, 0xE027);
3112 r8168_mac_ocp_write(tp, 0xF80A, 0xE04F);
3113 r8168_mac_ocp_write(tp, 0xF80C, 0xE05E);
3114 r8168_mac_ocp_write(tp, 0xF80E, 0xE065);
3115 r8168_mac_ocp_write(tp, 0xF810, 0xC602);
3116 r8168_mac_ocp_write(tp, 0xF812, 0xBE00);
3117 r8168_mac_ocp_write(tp, 0xF814, 0x0000);
3118 r8168_mac_ocp_write(tp, 0xF816, 0xC502);
3119 r8168_mac_ocp_write(tp, 0xF818, 0xBD00);
3120 r8168_mac_ocp_write(tp, 0xF81A, 0x074C);
3121 r8168_mac_ocp_write(tp, 0xF81C, 0xC302);
3122 r8168_mac_ocp_write(tp, 0xF81E, 0xBB00);
3123 r8168_mac_ocp_write(tp, 0xF820, 0x080A);
3124 r8168_mac_ocp_write(tp, 0xF822, 0x6420);
3125 r8168_mac_ocp_write(tp, 0xF824, 0x48C2);
3126 r8168_mac_ocp_write(tp, 0xF826, 0x8C20);
3127 r8168_mac_ocp_write(tp, 0xF828, 0xC516);
3128 r8168_mac_ocp_write(tp, 0xF82A, 0x64A4);
3129 r8168_mac_ocp_write(tp, 0xF82C, 0x49C0);
3130 r8168_mac_ocp_write(tp, 0xF82E, 0xF009);
3131 r8168_mac_ocp_write(tp, 0xF830, 0x74A2);
3132 r8168_mac_ocp_write(tp, 0xF832, 0x8CA5);
3133 r8168_mac_ocp_write(tp, 0xF834, 0x74A0);
3134 r8168_mac_ocp_write(tp, 0xF836, 0xC50E);
3135 r8168_mac_ocp_write(tp, 0xF838, 0x9CA2);
3136 r8168_mac_ocp_write(tp, 0xF83A, 0x1C11);
3137 r8168_mac_ocp_write(tp, 0xF83C, 0x9CA0);
3138 r8168_mac_ocp_write(tp, 0xF83E, 0xE006);
3139 r8168_mac_ocp_write(tp, 0xF840, 0x74F8);
3140 r8168_mac_ocp_write(tp, 0xF842, 0x48C4);
3141 r8168_mac_ocp_write(tp, 0xF844, 0x8CF8);
3142 r8168_mac_ocp_write(tp, 0xF846, 0xC404);
3143 r8168_mac_ocp_write(tp, 0xF848, 0xBC00);
3144 r8168_mac_ocp_write(tp, 0xF84A, 0xC403);
3145 r8168_mac_ocp_write(tp, 0xF84C, 0xBC00);
3146 r8168_mac_ocp_write(tp, 0xF84E, 0x0BF2);
3147 r8168_mac_ocp_write(tp, 0xF850, 0x0C0A);
3148 r8168_mac_ocp_write(tp, 0xF852, 0xE434);
3149 r8168_mac_ocp_write(tp, 0xF854, 0xD3C0);
3150 r8168_mac_ocp_write(tp, 0xF856, 0x49D9);
3151 r8168_mac_ocp_write(tp, 0xF858, 0xF01F);
3152 r8168_mac_ocp_write(tp, 0xF85A, 0xC526);
3153 r8168_mac_ocp_write(tp, 0xF85C, 0x64A5);
3154 r8168_mac_ocp_write(tp, 0xF85E, 0x1400);
3155 r8168_mac_ocp_write(tp, 0xF860, 0xF007);
3156 r8168_mac_ocp_write(tp, 0xF862, 0x0C01);
3157 r8168_mac_ocp_write(tp, 0xF864, 0x8CA5);
3158 r8168_mac_ocp_write(tp, 0xF866, 0x1C15);
3159 r8168_mac_ocp_write(tp, 0xF868, 0xC51B);
3160 r8168_mac_ocp_write(tp, 0xF86A, 0x9CA0);
3161 r8168_mac_ocp_write(tp, 0xF86C, 0xE013);
3162 r8168_mac_ocp_write(tp, 0xF86E, 0xC519);
3163 r8168_mac_ocp_write(tp, 0xF870, 0x74A0);
3164 r8168_mac_ocp_write(tp, 0xF872, 0x48C4);
3165 r8168_mac_ocp_write(tp, 0xF874, 0x8CA0);
3166 r8168_mac_ocp_write(tp, 0xF876, 0xC516);
3167 r8168_mac_ocp_write(tp, 0xF878, 0x74A4);
3168 r8168_mac_ocp_write(tp, 0xF87A, 0x48C8);
3169 r8168_mac_ocp_write(tp, 0xF87C, 0x48CA);
3170 r8168_mac_ocp_write(tp, 0xF87E, 0x9CA4);
3171 r8168_mac_ocp_write(tp, 0xF880, 0xC512);
3172 r8168_mac_ocp_write(tp, 0xF882, 0x1B00);
3173 r8168_mac_ocp_write(tp, 0xF884, 0x9BA0);
3174 r8168_mac_ocp_write(tp, 0xF886, 0x1B1C);
3175 r8168_mac_ocp_write(tp, 0xF888, 0x483F);
3176 r8168_mac_ocp_write(tp, 0xF88A, 0x9BA2);
3177 r8168_mac_ocp_write(tp, 0xF88C, 0x1B04);
3178 r8168_mac_ocp_write(tp, 0xF88E, 0xC508);
3179 r8168_mac_ocp_write(tp, 0xF890, 0x9BA0);
3180 r8168_mac_ocp_write(tp, 0xF892, 0xC505);
3181 r8168_mac_ocp_write(tp, 0xF894, 0xBD00);
3182 r8168_mac_ocp_write(tp, 0xF896, 0xC502);
3183 r8168_mac_ocp_write(tp, 0xF898, 0xBD00);
3184 r8168_mac_ocp_write(tp, 0xF89A, 0x0300);
3185 r8168_mac_ocp_write(tp, 0xF89C, 0x051E);
3186 r8168_mac_ocp_write(tp, 0xF89E, 0xE434);
3187 r8168_mac_ocp_write(tp, 0xF8A0, 0xE018);
3188 r8168_mac_ocp_write(tp, 0xF8A2, 0xE092);
3189 r8168_mac_ocp_write(tp, 0xF8A4, 0xDE20);
3190 r8168_mac_ocp_write(tp, 0xF8A6, 0xD3C0);
3191 r8168_mac_ocp_write(tp, 0xF8A8, 0xC50F);
3192 r8168_mac_ocp_write(tp, 0xF8AA, 0x76A4);
3193 r8168_mac_ocp_write(tp, 0xF8AC, 0x49E3);
3194 r8168_mac_ocp_write(tp, 0xF8AE, 0xF007);
3195 r8168_mac_ocp_write(tp, 0xF8B0, 0x49C0);
3196 r8168_mac_ocp_write(tp, 0xF8B2, 0xF103);
3197 r8168_mac_ocp_write(tp, 0xF8B4, 0xC607);
3198 r8168_mac_ocp_write(tp, 0xF8B6, 0xBE00);
3199 r8168_mac_ocp_write(tp, 0xF8B8, 0xC606);
3200 r8168_mac_ocp_write(tp, 0xF8BA, 0xBE00);
3201 r8168_mac_ocp_write(tp, 0xF8BC, 0xC602);
3202 r8168_mac_ocp_write(tp, 0xF8BE, 0xBE00);
3203 r8168_mac_ocp_write(tp, 0xF8C0, 0x0C4C);
3204 r8168_mac_ocp_write(tp, 0xF8C2, 0x0C28);
3205 r8168_mac_ocp_write(tp, 0xF8C4, 0x0C2C);
3206 r8168_mac_ocp_write(tp, 0xF8C6, 0xDC00);
3207 r8168_mac_ocp_write(tp, 0xF8C8, 0xC707);
3208 r8168_mac_ocp_write(tp, 0xF8CA, 0x1D00);
3209 r8168_mac_ocp_write(tp, 0xF8CC, 0x8DE2);
3210 r8168_mac_ocp_write(tp, 0xF8CE, 0x48C1);
3211 r8168_mac_ocp_write(tp, 0xF8D0, 0xC502);
3212 r8168_mac_ocp_write(tp, 0xF8D2, 0xBD00);
3213 r8168_mac_ocp_write(tp, 0xF8D4, 0x00AA);
3214 r8168_mac_ocp_write(tp, 0xF8D6, 0xE0C0);
3215 r8168_mac_ocp_write(tp, 0xF8D8, 0xC502);
3216 r8168_mac_ocp_write(tp, 0xF8DA, 0xBD00);
3217 r8168_mac_ocp_write(tp, 0xF8DC, 0x0132);
3219 r8168_mac_ocp_write(tp, 0xFC26, 0x8000);
3221 r8168_mac_ocp_write(tp, 0xFC2A, 0x0743);
3222 r8168_mac_ocp_write(tp, 0xFC2C, 0x0801);
3223 r8168_mac_ocp_write(tp, 0xFC2E, 0x0BE9);
3224 r8168_mac_ocp_write(tp, 0xFC30, 0x02FD);
3225 r8168_mac_ocp_write(tp, 0xFC32, 0x0C25);
3226 r8168_mac_ocp_write(tp, 0xFC34, 0x00A9);
3227 r8168_mac_ocp_write(tp, 0xFC36, 0x012D);
3229 rtl_hw_aspm_clkreq_enable(tp, true);
3232 static void rtl_hw_start_8168h_1(struct rtl8169_private *tp)
3234 static const struct ephy_info e_info_8168h_1[] = {
3235 { 0x1e, 0x0800, 0x0001 },
3236 { 0x1d, 0x0000, 0x0800 },
3237 { 0x05, 0xffff, 0x2089 },
3238 { 0x06, 0xffff, 0x5881 },
3239 { 0x04, 0xffff, 0x854a },
3240 { 0x01, 0xffff, 0x068b }
3244 /* disable aspm and clock request before access ephy */
3245 rtl_hw_aspm_clkreq_enable(tp, false);
3246 rtl_ephy_init(tp, e_info_8168h_1);
3248 rtl_set_fifo_size(tp, 0x08, 0x10, 0x02, 0x06);
3249 rtl8168g_set_pause_thresholds(tp, 0x38, 0x48);
3251 rtl_set_def_aspm_entry_latency(tp);
3253 rtl_reset_packet_filter(tp);
3255 rtl_eri_set_bits(tp, 0xd4, 0x1f00);
3256 rtl_eri_set_bits(tp, 0xdc, 0x001c);
3258 rtl_eri_write(tp, 0x5f0, ERIAR_MASK_0011, 0x4f87);
3260 RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~RXDV_GATED_EN);
3262 rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
3263 rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
3265 rtl8168_config_eee_mac(tp);
3267 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
3268 RTL_W8(tp, MISC_1, RTL_R8(tp, MISC_1) & ~PFM_D3COLD_EN);
3270 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~TX_10M_PS_EN);
3272 rtl_eri_clear_bits(tp, 0x1b0, BIT(12));
3274 rtl_pcie_state_l2l3_disable(tp);
3276 rg_saw_cnt = phy_read_paged(tp->phydev, 0x0c42, 0x13) & 0x3fff;
3277 if (rg_saw_cnt > 0) {
3280 sw_cnt_1ms_ini = 16000000/rg_saw_cnt;
3281 sw_cnt_1ms_ini &= 0x0fff;
3282 r8168_mac_ocp_modify(tp, 0xd412, 0x0fff, sw_cnt_1ms_ini);
3285 r8168_mac_ocp_modify(tp, 0xe056, 0x00f0, 0x0070);
3286 r8168_mac_ocp_modify(tp, 0xe052, 0x6000, 0x8008);
3287 r8168_mac_ocp_modify(tp, 0xe0d6, 0x01ff, 0x017f);
3288 r8168_mac_ocp_modify(tp, 0xd420, 0x0fff, 0x047f);
3290 r8168_mac_ocp_write(tp, 0xe63e, 0x0001);
3291 r8168_mac_ocp_write(tp, 0xe63e, 0x0000);
3292 r8168_mac_ocp_write(tp, 0xc094, 0x0000);
3293 r8168_mac_ocp_write(tp, 0xc09e, 0x0000);
3295 rtl_hw_aspm_clkreq_enable(tp, true);
3298 static void rtl_hw_start_8168ep(struct rtl8169_private *tp)
3300 rtl8168ep_stop_cmac(tp);
3302 rtl_set_fifo_size(tp, 0x08, 0x10, 0x02, 0x06);
3303 rtl8168g_set_pause_thresholds(tp, 0x2f, 0x5f);
3305 rtl_set_def_aspm_entry_latency(tp);
3307 rtl_reset_packet_filter(tp);
3309 rtl_eri_set_bits(tp, 0xd4, 0x1f80);
3311 rtl_eri_write(tp, 0x5f0, ERIAR_MASK_0011, 0x4f87);
3313 RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~RXDV_GATED_EN);
3315 rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
3316 rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
3318 rtl8168_config_eee_mac(tp);
3320 rtl_w0w1_eri(tp, 0x2fc, 0x01, 0x06);
3322 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~TX_10M_PS_EN);
3324 rtl_pcie_state_l2l3_disable(tp);
3327 static void rtl_hw_start_8168ep_1(struct rtl8169_private *tp)
3329 static const struct ephy_info e_info_8168ep_1[] = {
3330 { 0x00, 0xffff, 0x10ab },
3331 { 0x06, 0xffff, 0xf030 },
3332 { 0x08, 0xffff, 0x2006 },
3333 { 0x0d, 0xffff, 0x1666 },
3334 { 0x0c, 0x3ff0, 0x0000 }
3337 /* disable aspm and clock request before access ephy */
3338 rtl_hw_aspm_clkreq_enable(tp, false);
3339 rtl_ephy_init(tp, e_info_8168ep_1);
3341 rtl_hw_start_8168ep(tp);
3343 rtl_hw_aspm_clkreq_enable(tp, true);
3346 static void rtl_hw_start_8168ep_2(struct rtl8169_private *tp)
3348 static const struct ephy_info e_info_8168ep_2[] = {
3349 { 0x00, 0xffff, 0x10a3 },
3350 { 0x19, 0xffff, 0xfc00 },
3351 { 0x1e, 0xffff, 0x20ea }
3354 /* disable aspm and clock request before access ephy */
3355 rtl_hw_aspm_clkreq_enable(tp, false);
3356 rtl_ephy_init(tp, e_info_8168ep_2);
3358 rtl_hw_start_8168ep(tp);
3360 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
3361 RTL_W8(tp, MISC_1, RTL_R8(tp, MISC_1) & ~PFM_D3COLD_EN);
3363 rtl_hw_aspm_clkreq_enable(tp, true);
3366 static void rtl_hw_start_8168ep_3(struct rtl8169_private *tp)
3368 static const struct ephy_info e_info_8168ep_3[] = {
3369 { 0x00, 0x0000, 0x0080 },
3370 { 0x0d, 0x0100, 0x0200 },
3371 { 0x19, 0x8021, 0x0000 },
3372 { 0x1e, 0x0000, 0x2000 },
3375 /* disable aspm and clock request before access ephy */
3376 rtl_hw_aspm_clkreq_enable(tp, false);
3377 rtl_ephy_init(tp, e_info_8168ep_3);
3379 rtl_hw_start_8168ep(tp);
3381 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
3382 RTL_W8(tp, MISC_1, RTL_R8(tp, MISC_1) & ~PFM_D3COLD_EN);
3384 r8168_mac_ocp_modify(tp, 0xd3e2, 0x0fff, 0x0271);
3385 r8168_mac_ocp_modify(tp, 0xd3e4, 0x00ff, 0x0000);
3386 r8168_mac_ocp_modify(tp, 0xe860, 0x0000, 0x0080);
3388 rtl_hw_aspm_clkreq_enable(tp, true);
3391 static void rtl_hw_start_8117(struct rtl8169_private *tp)
3393 static const struct ephy_info e_info_8117[] = {
3394 { 0x19, 0x0040, 0x1100 },
3395 { 0x59, 0x0040, 0x1100 },
3399 rtl8168ep_stop_cmac(tp);
3401 /* disable aspm and clock request before access ephy */
3402 rtl_hw_aspm_clkreq_enable(tp, false);
3403 rtl_ephy_init(tp, e_info_8117);
3405 rtl_set_fifo_size(tp, 0x08, 0x10, 0x02, 0x06);
3406 rtl8168g_set_pause_thresholds(tp, 0x2f, 0x5f);
3408 rtl_set_def_aspm_entry_latency(tp);
3410 rtl_reset_packet_filter(tp);
3412 rtl_eri_set_bits(tp, 0xd4, 0x1f90);
3414 rtl_eri_write(tp, 0x5f0, ERIAR_MASK_0011, 0x4f87);
3416 RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~RXDV_GATED_EN);
3418 rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
3419 rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
3421 rtl8168_config_eee_mac(tp);
3423 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
3424 RTL_W8(tp, MISC_1, RTL_R8(tp, MISC_1) & ~PFM_D3COLD_EN);
3426 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~TX_10M_PS_EN);
3428 rtl_eri_clear_bits(tp, 0x1b0, BIT(12));
3430 rtl_pcie_state_l2l3_disable(tp);
3432 rg_saw_cnt = phy_read_paged(tp->phydev, 0x0c42, 0x13) & 0x3fff;
3433 if (rg_saw_cnt > 0) {
3436 sw_cnt_1ms_ini = (16000000 / rg_saw_cnt) & 0x0fff;
3437 r8168_mac_ocp_modify(tp, 0xd412, 0x0fff, sw_cnt_1ms_ini);
3440 r8168_mac_ocp_modify(tp, 0xe056, 0x00f0, 0x0070);
3441 r8168_mac_ocp_write(tp, 0xea80, 0x0003);
3442 r8168_mac_ocp_modify(tp, 0xe052, 0x0000, 0x0009);
3443 r8168_mac_ocp_modify(tp, 0xd420, 0x0fff, 0x047f);
3445 r8168_mac_ocp_write(tp, 0xe63e, 0x0001);
3446 r8168_mac_ocp_write(tp, 0xe63e, 0x0000);
3447 r8168_mac_ocp_write(tp, 0xc094, 0x0000);
3448 r8168_mac_ocp_write(tp, 0xc09e, 0x0000);
3450 /* firmware is for MAC only */
3451 r8169_apply_firmware(tp);
3453 rtl_hw_aspm_clkreq_enable(tp, true);
3456 static void rtl_hw_start_8102e_1(struct rtl8169_private *tp)
3458 static const struct ephy_info e_info_8102e_1[] = {
3459 { 0x01, 0, 0x6e65 },
3460 { 0x02, 0, 0x091f },
3461 { 0x03, 0, 0xc2f9 },
3462 { 0x06, 0, 0xafb5 },
3463 { 0x07, 0, 0x0e00 },
3464 { 0x19, 0, 0xec80 },
3465 { 0x01, 0, 0x2e65 },
3470 rtl_set_def_aspm_entry_latency(tp);
3472 RTL_W8(tp, DBG_REG, FIX_NAK_1);
3475 LEDS1 | LEDS0 | Speed_down | MEMMAP | IOMAP | VPD | PMEnable);
3476 RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
3478 cfg1 = RTL_R8(tp, Config1);
3479 if ((cfg1 & LEDS0) && (cfg1 & LEDS1))
3480 RTL_W8(tp, Config1, cfg1 & ~LEDS0);
3482 rtl_ephy_init(tp, e_info_8102e_1);
3485 static void rtl_hw_start_8102e_2(struct rtl8169_private *tp)
3487 rtl_set_def_aspm_entry_latency(tp);
3489 RTL_W8(tp, Config1, MEMMAP | IOMAP | VPD | PMEnable);
3490 RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
3493 static void rtl_hw_start_8102e_3(struct rtl8169_private *tp)
3495 rtl_hw_start_8102e_2(tp);
3497 rtl_ephy_write(tp, 0x03, 0xc2f9);
3500 static void rtl_hw_start_8105e_1(struct rtl8169_private *tp)
3502 static const struct ephy_info e_info_8105e_1[] = {
3503 { 0x07, 0, 0x4000 },
3504 { 0x19, 0, 0x0200 },
3505 { 0x19, 0, 0x0020 },
3506 { 0x1e, 0, 0x2000 },
3507 { 0x03, 0, 0x0001 },
3508 { 0x19, 0, 0x0100 },
3509 { 0x19, 0, 0x0004 },
3513 /* Force LAN exit from ASPM if Rx/Tx are not idle */
3514 RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) | 0x002800);
3516 /* Disable Early Tally Counter */
3517 RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) & ~0x010000);
3519 RTL_W8(tp, MCU, RTL_R8(tp, MCU) | EN_NDP | EN_OOB_RESET);
3520 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) | PFM_EN);
3522 rtl_ephy_init(tp, e_info_8105e_1);
3524 rtl_pcie_state_l2l3_disable(tp);
3527 static void rtl_hw_start_8105e_2(struct rtl8169_private *tp)
3529 rtl_hw_start_8105e_1(tp);
3530 rtl_ephy_write(tp, 0x1e, rtl_ephy_read(tp, 0x1e) | 0x8000);
3533 static void rtl_hw_start_8402(struct rtl8169_private *tp)
3535 static const struct ephy_info e_info_8402[] = {
3536 { 0x19, 0xffff, 0xff64 },
3540 rtl_set_def_aspm_entry_latency(tp);
3542 /* Force LAN exit from ASPM if Rx/Tx are not idle */
3543 RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) | 0x002800);
3545 RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
3547 rtl_ephy_init(tp, e_info_8402);
3549 rtl_set_fifo_size(tp, 0x00, 0x00, 0x02, 0x06);
3550 rtl_reset_packet_filter(tp);
3551 rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
3552 rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
3553 rtl_w0w1_eri(tp, 0x0d4, 0x0e00, 0xff00);
3556 rtl_eri_write(tp, 0x1b0, ERIAR_MASK_0011, 0x0000);
3558 rtl_pcie_state_l2l3_disable(tp);
3561 static void rtl_hw_start_8106(struct rtl8169_private *tp)
3563 rtl_hw_aspm_clkreq_enable(tp, false);
3565 /* Force LAN exit from ASPM if Rx/Tx are not idle */
3566 RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) | 0x002800);
3568 RTL_W32(tp, MISC, (RTL_R32(tp, MISC) | DISABLE_LAN_EN) & ~EARLY_TALLY_EN);
3569 RTL_W8(tp, MCU, RTL_R8(tp, MCU) | EN_NDP | EN_OOB_RESET);
3570 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
3572 rtl_eri_write(tp, 0x1d0, ERIAR_MASK_0011, 0x0000);
3575 rtl_eri_write(tp, 0x1b0, ERIAR_MASK_0011, 0x0000);
3577 rtl_pcie_state_l2l3_disable(tp);
3578 rtl_hw_aspm_clkreq_enable(tp, true);
3581 DECLARE_RTL_COND(rtl_mac_ocp_e00e_cond)
3583 return r8168_mac_ocp_read(tp, 0xe00e) & BIT(13);
3586 static void rtl_hw_start_8125_common(struct rtl8169_private *tp)
3588 rtl_pcie_state_l2l3_disable(tp);
3590 RTL_W16(tp, 0x382, 0x221b);
3591 RTL_W8(tp, 0x4500, 0);
3592 RTL_W16(tp, 0x4800, 0);
3595 r8168_mac_ocp_modify(tp, 0xd40a, 0x0010, 0x0000);
3597 RTL_W8(tp, Config1, RTL_R8(tp, Config1) & ~0x10);
3599 r8168_mac_ocp_write(tp, 0xc140, 0xffff);
3600 r8168_mac_ocp_write(tp, 0xc142, 0xffff);
3602 r8168_mac_ocp_modify(tp, 0xd3e2, 0x0fff, 0x03a9);
3603 r8168_mac_ocp_modify(tp, 0xd3e4, 0x00ff, 0x0000);
3604 r8168_mac_ocp_modify(tp, 0xe860, 0x0000, 0x0080);
3606 /* disable new tx descriptor format */
3607 r8168_mac_ocp_modify(tp, 0xeb58, 0x0001, 0x0000);
3609 r8168_mac_ocp_modify(tp, 0xe614, 0x0700, 0x0400);
3610 r8168_mac_ocp_modify(tp, 0xe63e, 0x0c30, 0x0020);
3611 r8168_mac_ocp_modify(tp, 0xc0b4, 0x0000, 0x000c);
3612 r8168_mac_ocp_modify(tp, 0xeb6a, 0x00ff, 0x0033);
3613 r8168_mac_ocp_modify(tp, 0xeb50, 0x03e0, 0x0040);
3614 r8168_mac_ocp_modify(tp, 0xe056, 0x00f0, 0x0030);
3615 r8168_mac_ocp_modify(tp, 0xe040, 0x1000, 0x0000);
3616 r8168_mac_ocp_modify(tp, 0xe0c0, 0x4f0f, 0x4403);
3617 r8168_mac_ocp_modify(tp, 0xe052, 0x0080, 0x0067);
3618 r8168_mac_ocp_modify(tp, 0xc0ac, 0x0080, 0x1f00);
3619 r8168_mac_ocp_modify(tp, 0xd430, 0x0fff, 0x047f);
3620 r8168_mac_ocp_modify(tp, 0xe84c, 0x0000, 0x00c0);
3621 r8168_mac_ocp_modify(tp, 0xea1c, 0x0004, 0x0000);
3622 r8168_mac_ocp_modify(tp, 0xeb54, 0x0000, 0x0001);
3624 r8168_mac_ocp_modify(tp, 0xeb54, 0x0001, 0x0000);
3625 RTL_W16(tp, 0x1880, RTL_R16(tp, 0x1880) & ~0x0030);
3627 r8168_mac_ocp_write(tp, 0xe098, 0xc302);
3629 rtl_loop_wait_low(tp, &rtl_mac_ocp_e00e_cond, 1000, 10);
3631 rtl8125_config_eee_mac(tp);
3633 RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~RXDV_GATED_EN);
3637 static void rtl_hw_start_8125_1(struct rtl8169_private *tp)
3639 static const struct ephy_info e_info_8125_1[] = {
3640 { 0x01, 0xffff, 0xa812 },
3641 { 0x09, 0xffff, 0x520c },
3642 { 0x04, 0xffff, 0xd000 },
3643 { 0x0d, 0xffff, 0xf702 },
3644 { 0x0a, 0xffff, 0x8653 },
3645 { 0x06, 0xffff, 0x001e },
3646 { 0x08, 0xffff, 0x3595 },
3647 { 0x20, 0xffff, 0x9455 },
3648 { 0x21, 0xffff, 0x99ff },
3649 { 0x02, 0xffff, 0x6046 },
3650 { 0x29, 0xffff, 0xfe00 },
3651 { 0x23, 0xffff, 0xab62 },
3653 { 0x41, 0xffff, 0xa80c },
3654 { 0x49, 0xffff, 0x520c },
3655 { 0x44, 0xffff, 0xd000 },
3656 { 0x4d, 0xffff, 0xf702 },
3657 { 0x4a, 0xffff, 0x8653 },
3658 { 0x46, 0xffff, 0x001e },
3659 { 0x48, 0xffff, 0x3595 },
3660 { 0x60, 0xffff, 0x9455 },
3661 { 0x61, 0xffff, 0x99ff },
3662 { 0x42, 0xffff, 0x6046 },
3663 { 0x69, 0xffff, 0xfe00 },
3664 { 0x63, 0xffff, 0xab62 },
3667 rtl_set_def_aspm_entry_latency(tp);
3669 /* disable aspm and clock request before access ephy */
3670 rtl_hw_aspm_clkreq_enable(tp, false);
3671 rtl_ephy_init(tp, e_info_8125_1);
3673 rtl_hw_start_8125_common(tp);
3676 static void rtl_hw_start_8125_2(struct rtl8169_private *tp)
3678 static const struct ephy_info e_info_8125_2[] = {
3679 { 0x04, 0xffff, 0xd000 },
3680 { 0x0a, 0xffff, 0x8653 },
3681 { 0x23, 0xffff, 0xab66 },
3682 { 0x20, 0xffff, 0x9455 },
3683 { 0x21, 0xffff, 0x99ff },
3684 { 0x29, 0xffff, 0xfe04 },
3686 { 0x44, 0xffff, 0xd000 },
3687 { 0x4a, 0xffff, 0x8653 },
3688 { 0x63, 0xffff, 0xab66 },
3689 { 0x60, 0xffff, 0x9455 },
3690 { 0x61, 0xffff, 0x99ff },
3691 { 0x69, 0xffff, 0xfe04 },
3694 rtl_set_def_aspm_entry_latency(tp);
3696 /* disable aspm and clock request before access ephy */
3697 rtl_hw_aspm_clkreq_enable(tp, false);
3698 rtl_ephy_init(tp, e_info_8125_2);
3700 rtl_hw_start_8125_common(tp);
3703 static void rtl_hw_config(struct rtl8169_private *tp)
3705 static const rtl_generic_fct hw_configs[] = {
3706 [RTL_GIGA_MAC_VER_07] = rtl_hw_start_8102e_1,
3707 [RTL_GIGA_MAC_VER_08] = rtl_hw_start_8102e_3,
3708 [RTL_GIGA_MAC_VER_09] = rtl_hw_start_8102e_2,
3709 [RTL_GIGA_MAC_VER_10] = NULL,
3710 [RTL_GIGA_MAC_VER_11] = rtl_hw_start_8168b,
3711 [RTL_GIGA_MAC_VER_12] = rtl_hw_start_8168b,
3712 [RTL_GIGA_MAC_VER_13] = NULL,
3713 [RTL_GIGA_MAC_VER_14] = NULL,
3714 [RTL_GIGA_MAC_VER_15] = NULL,
3715 [RTL_GIGA_MAC_VER_16] = NULL,
3716 [RTL_GIGA_MAC_VER_17] = rtl_hw_start_8168b,
3717 [RTL_GIGA_MAC_VER_18] = rtl_hw_start_8168cp_1,
3718 [RTL_GIGA_MAC_VER_19] = rtl_hw_start_8168c_1,
3719 [RTL_GIGA_MAC_VER_20] = rtl_hw_start_8168c_2,
3720 [RTL_GIGA_MAC_VER_21] = rtl_hw_start_8168c_3,
3721 [RTL_GIGA_MAC_VER_22] = rtl_hw_start_8168c_4,
3722 [RTL_GIGA_MAC_VER_23] = rtl_hw_start_8168cp_2,
3723 [RTL_GIGA_MAC_VER_24] = rtl_hw_start_8168cp_3,
3724 [RTL_GIGA_MAC_VER_25] = rtl_hw_start_8168d,
3725 [RTL_GIGA_MAC_VER_26] = rtl_hw_start_8168d,
3726 [RTL_GIGA_MAC_VER_27] = rtl_hw_start_8168d,
3727 [RTL_GIGA_MAC_VER_28] = rtl_hw_start_8168d_4,
3728 [RTL_GIGA_MAC_VER_29] = rtl_hw_start_8105e_1,
3729 [RTL_GIGA_MAC_VER_30] = rtl_hw_start_8105e_2,
3730 [RTL_GIGA_MAC_VER_31] = rtl_hw_start_8168d,
3731 [RTL_GIGA_MAC_VER_32] = rtl_hw_start_8168e_1,
3732 [RTL_GIGA_MAC_VER_33] = rtl_hw_start_8168e_1,
3733 [RTL_GIGA_MAC_VER_34] = rtl_hw_start_8168e_2,
3734 [RTL_GIGA_MAC_VER_35] = rtl_hw_start_8168f_1,
3735 [RTL_GIGA_MAC_VER_36] = rtl_hw_start_8168f_1,
3736 [RTL_GIGA_MAC_VER_37] = rtl_hw_start_8402,
3737 [RTL_GIGA_MAC_VER_38] = rtl_hw_start_8411,
3738 [RTL_GIGA_MAC_VER_39] = rtl_hw_start_8106,
3739 [RTL_GIGA_MAC_VER_40] = rtl_hw_start_8168g_1,
3740 [RTL_GIGA_MAC_VER_41] = rtl_hw_start_8168g_1,
3741 [RTL_GIGA_MAC_VER_42] = rtl_hw_start_8168g_2,
3742 [RTL_GIGA_MAC_VER_43] = rtl_hw_start_8168g_2,
3743 [RTL_GIGA_MAC_VER_44] = rtl_hw_start_8411_2,
3744 [RTL_GIGA_MAC_VER_45] = rtl_hw_start_8168h_1,
3745 [RTL_GIGA_MAC_VER_46] = rtl_hw_start_8168h_1,
3746 [RTL_GIGA_MAC_VER_47] = rtl_hw_start_8168h_1,
3747 [RTL_GIGA_MAC_VER_48] = rtl_hw_start_8168h_1,
3748 [RTL_GIGA_MAC_VER_49] = rtl_hw_start_8168ep_1,
3749 [RTL_GIGA_MAC_VER_50] = rtl_hw_start_8168ep_2,
3750 [RTL_GIGA_MAC_VER_51] = rtl_hw_start_8168ep_3,
3751 [RTL_GIGA_MAC_VER_52] = rtl_hw_start_8117,
3752 [RTL_GIGA_MAC_VER_60] = rtl_hw_start_8125_1,
3753 [RTL_GIGA_MAC_VER_61] = rtl_hw_start_8125_2,
3756 if (hw_configs[tp->mac_version])
3757 hw_configs[tp->mac_version](tp);
3760 static void rtl_hw_start_8125(struct rtl8169_private *tp)
3764 /* disable interrupt coalescing */
3765 for (i = 0xa00; i < 0xb00; i += 4)
3771 static void rtl_hw_start_8168(struct rtl8169_private *tp)
3773 if (rtl_is_8168evl_up(tp))
3774 RTL_W8(tp, MaxTxPacketSize, EarlySize);
3776 RTL_W8(tp, MaxTxPacketSize, TxPacketMax);
3780 /* disable interrupt coalescing */
3781 RTL_W16(tp, IntrMitigate, 0x0000);
3784 static void rtl_hw_start_8169(struct rtl8169_private *tp)
3786 RTL_W8(tp, EarlyTxThres, NoEarlyTx);
3788 tp->cp_cmd |= PCIMulRW;
3790 if (tp->mac_version == RTL_GIGA_MAC_VER_02 ||
3791 tp->mac_version == RTL_GIGA_MAC_VER_03)
3792 tp->cp_cmd |= EnAnaPLL;
3794 RTL_W16(tp, CPlusCmd, tp->cp_cmd);
3796 rtl8169_set_magic_reg(tp);
3798 /* disable interrupt coalescing */
3799 RTL_W16(tp, IntrMitigate, 0x0000);
3802 static void rtl_hw_start(struct rtl8169_private *tp)
3804 rtl_unlock_config_regs(tp);
3806 RTL_W16(tp, CPlusCmd, tp->cp_cmd);
3808 if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
3809 rtl_hw_start_8169(tp);
3810 else if (rtl_is_8125(tp))
3811 rtl_hw_start_8125(tp);
3813 rtl_hw_start_8168(tp);
3815 rtl_set_rx_max_size(tp);
3816 rtl_set_rx_tx_desc_registers(tp);
3817 rtl_lock_config_regs(tp);
3819 rtl_jumbo_config(tp);
3821 /* Initially a 10 us delay. Turned it into a PCI commit. - FR */
3824 RTL_W8(tp, ChipCmd, CmdTxEnb | CmdRxEnb);
3826 rtl_set_tx_config_registers(tp);
3827 rtl_set_rx_config_features(tp, tp->dev->features);
3828 rtl_set_rx_mode(tp->dev);
3832 static int rtl8169_change_mtu(struct net_device *dev, int new_mtu)
3834 struct rtl8169_private *tp = netdev_priv(dev);
3837 netdev_update_features(dev);
3838 rtl_jumbo_config(tp);
3843 static void rtl8169_mark_to_asic(struct RxDesc *desc)
3845 u32 eor = le32_to_cpu(desc->opts1) & RingEnd;
3848 /* Force memory writes to complete before releasing descriptor */
3850 WRITE_ONCE(desc->opts1, cpu_to_le32(DescOwn | eor | R8169_RX_BUF_SIZE));
3853 static struct page *rtl8169_alloc_rx_data(struct rtl8169_private *tp,
3854 struct RxDesc *desc)
3856 struct device *d = tp_to_dev(tp);
3857 int node = dev_to_node(d);
3861 data = alloc_pages_node(node, GFP_KERNEL, get_order(R8169_RX_BUF_SIZE));
3865 mapping = dma_map_page(d, data, 0, R8169_RX_BUF_SIZE, DMA_FROM_DEVICE);
3866 if (unlikely(dma_mapping_error(d, mapping))) {
3867 netdev_err(tp->dev, "Failed to map RX DMA!\n");
3868 __free_pages(data, get_order(R8169_RX_BUF_SIZE));
3872 desc->addr = cpu_to_le64(mapping);
3873 rtl8169_mark_to_asic(desc);
3878 static void rtl8169_rx_clear(struct rtl8169_private *tp)
3882 for (i = 0; i < NUM_RX_DESC && tp->Rx_databuff[i]; i++) {
3883 dma_unmap_page(tp_to_dev(tp),
3884 le64_to_cpu(tp->RxDescArray[i].addr),
3885 R8169_RX_BUF_SIZE, DMA_FROM_DEVICE);
3886 __free_pages(tp->Rx_databuff[i], get_order(R8169_RX_BUF_SIZE));
3887 tp->Rx_databuff[i] = NULL;
3888 tp->RxDescArray[i].addr = 0;
3889 tp->RxDescArray[i].opts1 = 0;
3893 static int rtl8169_rx_fill(struct rtl8169_private *tp)
3897 for (i = 0; i < NUM_RX_DESC; i++) {
3900 data = rtl8169_alloc_rx_data(tp, tp->RxDescArray + i);
3902 rtl8169_rx_clear(tp);
3905 tp->Rx_databuff[i] = data;
3908 /* mark as last descriptor in the ring */
3909 tp->RxDescArray[NUM_RX_DESC - 1].opts1 |= cpu_to_le32(RingEnd);
3914 static int rtl8169_init_ring(struct rtl8169_private *tp)
3916 rtl8169_init_ring_indexes(tp);
3918 memset(tp->tx_skb, 0, sizeof(tp->tx_skb));
3919 memset(tp->Rx_databuff, 0, sizeof(tp->Rx_databuff));
3921 return rtl8169_rx_fill(tp);
3924 static void rtl8169_unmap_tx_skb(struct rtl8169_private *tp, unsigned int entry)
3926 struct ring_info *tx_skb = tp->tx_skb + entry;
3927 struct TxDesc *desc = tp->TxDescArray + entry;
3929 dma_unmap_single(tp_to_dev(tp), le64_to_cpu(desc->addr), tx_skb->len,
3931 memset(desc, 0, sizeof(*desc));
3932 memset(tx_skb, 0, sizeof(*tx_skb));
3935 static void rtl8169_tx_clear_range(struct rtl8169_private *tp, u32 start,
3940 for (i = 0; i < n; i++) {
3941 unsigned int entry = (start + i) % NUM_TX_DESC;
3942 struct ring_info *tx_skb = tp->tx_skb + entry;
3943 unsigned int len = tx_skb->len;
3946 struct sk_buff *skb = tx_skb->skb;
3948 rtl8169_unmap_tx_skb(tp, entry);
3950 dev_consume_skb_any(skb);
3955 static void rtl8169_tx_clear(struct rtl8169_private *tp)
3957 rtl8169_tx_clear_range(tp, tp->dirty_tx, NUM_TX_DESC);
3958 tp->cur_tx = tp->dirty_tx = 0;
3959 netdev_reset_queue(tp->dev);
3962 static void rtl_reset_work(struct rtl8169_private *tp)
3964 struct net_device *dev = tp->dev;
3967 napi_disable(&tp->napi);
3968 netif_stop_queue(dev);
3971 rtl8169_hw_reset(tp);
3973 for (i = 0; i < NUM_RX_DESC; i++)
3974 rtl8169_mark_to_asic(tp->RxDescArray + i);
3976 rtl8169_tx_clear(tp);
3977 rtl8169_init_ring_indexes(tp);
3979 napi_enable(&tp->napi);
3981 netif_wake_queue(dev);
3984 static void rtl8169_tx_timeout(struct net_device *dev, unsigned int txqueue)
3986 struct rtl8169_private *tp = netdev_priv(dev);
3988 rtl_schedule_task(tp, RTL_FLAG_TASK_RESET_PENDING);
3991 static int rtl8169_tx_map(struct rtl8169_private *tp, const u32 *opts, u32 len,
3992 void *addr, unsigned int entry, bool desc_own)
3994 struct TxDesc *txd = tp->TxDescArray + entry;
3995 struct device *d = tp_to_dev(tp);
4000 mapping = dma_map_single(d, addr, len, DMA_TO_DEVICE);
4001 ret = dma_mapping_error(d, mapping);
4002 if (unlikely(ret)) {
4003 if (net_ratelimit())
4004 netdev_err(tp->dev, "Failed to map TX data!\n");
4008 txd->addr = cpu_to_le64(mapping);
4009 txd->opts2 = cpu_to_le32(opts[1]);
4011 opts1 = opts[0] | len;
4012 if (entry == NUM_TX_DESC - 1)
4016 txd->opts1 = cpu_to_le32(opts1);
4018 tp->tx_skb[entry].len = len;
4023 static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb,
4024 const u32 *opts, unsigned int entry)
4026 struct skb_shared_info *info = skb_shinfo(skb);
4027 unsigned int cur_frag;
4029 for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) {
4030 const skb_frag_t *frag = info->frags + cur_frag;
4031 void *addr = skb_frag_address(frag);
4032 u32 len = skb_frag_size(frag);
4034 entry = (entry + 1) % NUM_TX_DESC;
4036 if (unlikely(rtl8169_tx_map(tp, opts, len, addr, entry, true)))
4043 rtl8169_tx_clear_range(tp, tp->cur_tx + 1, cur_frag);
4047 static bool rtl_test_hw_pad_bug(struct rtl8169_private *tp, struct sk_buff *skb)
4049 return skb->len < ETH_ZLEN && tp->mac_version == RTL_GIGA_MAC_VER_34;
4052 static void rtl8169_tso_csum_v1(struct sk_buff *skb, u32 *opts)
4054 u32 mss = skb_shinfo(skb)->gso_size;
4058 opts[0] |= mss << TD0_MSS_SHIFT;
4059 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
4060 const struct iphdr *ip = ip_hdr(skb);
4062 if (ip->protocol == IPPROTO_TCP)
4063 opts[0] |= TD0_IP_CS | TD0_TCP_CS;
4064 else if (ip->protocol == IPPROTO_UDP)
4065 opts[0] |= TD0_IP_CS | TD0_UDP_CS;
4071 static bool rtl8169_tso_csum_v2(struct rtl8169_private *tp,
4072 struct sk_buff *skb, u32 *opts)
4074 u32 transport_offset = (u32)skb_transport_offset(skb);
4075 struct skb_shared_info *shinfo = skb_shinfo(skb);
4076 u32 mss = shinfo->gso_size;
4079 if (shinfo->gso_type & SKB_GSO_TCPV4) {
4080 opts[0] |= TD1_GTSENV4;
4081 } else if (shinfo->gso_type & SKB_GSO_TCPV6) {
4082 if (skb_cow_head(skb, 0))
4085 tcp_v6_gso_csum_prep(skb);
4086 opts[0] |= TD1_GTSENV6;
4091 opts[0] |= transport_offset << GTTCPHO_SHIFT;
4092 opts[1] |= mss << TD1_MSS_SHIFT;
4093 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
4096 switch (vlan_get_protocol(skb)) {
4097 case htons(ETH_P_IP):
4098 opts[1] |= TD1_IPv4_CS;
4099 ip_protocol = ip_hdr(skb)->protocol;
4102 case htons(ETH_P_IPV6):
4103 opts[1] |= TD1_IPv6_CS;
4104 ip_protocol = ipv6_hdr(skb)->nexthdr;
4108 ip_protocol = IPPROTO_RAW;
4112 if (ip_protocol == IPPROTO_TCP)
4113 opts[1] |= TD1_TCP_CS;
4114 else if (ip_protocol == IPPROTO_UDP)
4115 opts[1] |= TD1_UDP_CS;
4119 opts[1] |= transport_offset << TCPHO_SHIFT;
4121 if (unlikely(rtl_test_hw_pad_bug(tp, skb)))
4122 return !eth_skb_pad(skb);
4128 static bool rtl_tx_slots_avail(struct rtl8169_private *tp,
4129 unsigned int nr_frags)
4131 unsigned int slots_avail = tp->dirty_tx + NUM_TX_DESC - tp->cur_tx;
4133 /* A skbuff with nr_frags needs nr_frags+1 entries in the tx queue */
4134 return slots_avail > nr_frags;
4137 /* Versions RTL8102e and from RTL8168c onwards support csum_v2 */
4138 static bool rtl_chip_supports_csum_v2(struct rtl8169_private *tp)
4140 switch (tp->mac_version) {
4141 case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
4142 case RTL_GIGA_MAC_VER_10 ... RTL_GIGA_MAC_VER_17:
4149 static void rtl8169_doorbell(struct rtl8169_private *tp)
4151 if (rtl_is_8125(tp))
4152 RTL_W16(tp, TxPoll_8125, BIT(0));
4154 RTL_W8(tp, TxPoll, NPQ);
4157 static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
4158 struct net_device *dev)
4160 unsigned int frags = skb_shinfo(skb)->nr_frags;
4161 struct rtl8169_private *tp = netdev_priv(dev);
4162 unsigned int entry = tp->cur_tx % NUM_TX_DESC;
4163 struct TxDesc *txd_first, *txd_last;
4164 bool stop_queue, door_bell;
4167 txd_first = tp->TxDescArray + entry;
4169 if (unlikely(!rtl_tx_slots_avail(tp, frags))) {
4170 if (net_ratelimit())
4171 netdev_err(dev, "BUG! Tx Ring full when queue awake!\n");
4175 if (unlikely(le32_to_cpu(txd_first->opts1) & DescOwn))
4178 opts[1] = rtl8169_tx_vlan_tag(skb);
4181 if (!rtl_chip_supports_csum_v2(tp))
4182 rtl8169_tso_csum_v1(skb, opts);
4183 else if (!rtl8169_tso_csum_v2(tp, skb, opts))
4186 if (unlikely(rtl8169_tx_map(tp, opts, skb_headlen(skb), skb->data,
4191 if (rtl8169_xmit_frags(tp, skb, opts, entry))
4193 entry = (entry + frags) % NUM_TX_DESC;
4196 txd_last = tp->TxDescArray + entry;
4197 txd_last->opts1 |= cpu_to_le32(LastFrag);
4198 tp->tx_skb[entry].skb = skb;
4200 skb_tx_timestamp(skb);
4202 /* Force memory writes to complete before releasing descriptor */
4205 door_bell = __netdev_sent_queue(dev, skb->len, netdev_xmit_more());
4207 txd_first->opts1 |= cpu_to_le32(DescOwn | FirstFrag);
4209 /* rtl_tx needs to see descriptor changes before updated tp->cur_tx */
4212 tp->cur_tx += frags + 1;
4214 stop_queue = !rtl_tx_slots_avail(tp, MAX_SKB_FRAGS);
4215 if (unlikely(stop_queue)) {
4216 /* Avoid wrongly optimistic queue wake-up: rtl_tx thread must
4217 * not miss a ring update when it notices a stopped queue.
4220 netif_stop_queue(dev);
4225 rtl8169_doorbell(tp);
4227 if (unlikely(stop_queue)) {
4228 /* Sync with rtl_tx:
4229 * - publish queue status and cur_tx ring index (write barrier)
4230 * - refresh dirty_tx ring index (read barrier).
4231 * May the current thread have a pessimistic view of the ring
4232 * status and forget to wake up queue, a racing rtl_tx thread
4236 if (rtl_tx_slots_avail(tp, MAX_SKB_FRAGS))
4237 netif_start_queue(dev);
4240 return NETDEV_TX_OK;
4243 rtl8169_unmap_tx_skb(tp, entry);
4245 dev_kfree_skb_any(skb);
4246 dev->stats.tx_dropped++;
4247 return NETDEV_TX_OK;
4250 netif_stop_queue(dev);
4251 dev->stats.tx_dropped++;
4252 return NETDEV_TX_BUSY;
4255 static unsigned int rtl_last_frag_len(struct sk_buff *skb)
4257 struct skb_shared_info *info = skb_shinfo(skb);
4258 unsigned int nr_frags = info->nr_frags;
4263 return skb_frag_size(info->frags + nr_frags - 1);
4266 /* Workaround for hw issues with TSO on RTL8168evl */
4267 static netdev_features_t rtl8168evl_fix_tso(struct sk_buff *skb,
4268 netdev_features_t features)
4270 /* IPv4 header has options field */
4271 if (vlan_get_protocol(skb) == htons(ETH_P_IP) &&
4272 ip_hdrlen(skb) > sizeof(struct iphdr))
4273 features &= ~NETIF_F_ALL_TSO;
4275 /* IPv4 TCP header has options field */
4276 else if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV4 &&
4277 tcp_hdrlen(skb) > sizeof(struct tcphdr))
4278 features &= ~NETIF_F_ALL_TSO;
4280 else if (rtl_last_frag_len(skb) <= 6)
4281 features &= ~NETIF_F_ALL_TSO;
4286 static netdev_features_t rtl8169_features_check(struct sk_buff *skb,
4287 struct net_device *dev,
4288 netdev_features_t features)
4290 int transport_offset = skb_transport_offset(skb);
4291 struct rtl8169_private *tp = netdev_priv(dev);
4293 if (skb_is_gso(skb)) {
4294 if (tp->mac_version == RTL_GIGA_MAC_VER_34)
4295 features = rtl8168evl_fix_tso(skb, features);
4297 if (transport_offset > GTTCPHO_MAX &&
4298 rtl_chip_supports_csum_v2(tp))
4299 features &= ~NETIF_F_ALL_TSO;
4300 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
4301 if (skb->len < ETH_ZLEN) {
4302 switch (tp->mac_version) {
4303 case RTL_GIGA_MAC_VER_11:
4304 case RTL_GIGA_MAC_VER_12:
4305 case RTL_GIGA_MAC_VER_17:
4306 case RTL_GIGA_MAC_VER_34:
4307 features &= ~NETIF_F_CSUM_MASK;
4314 if (transport_offset > TCPHO_MAX &&
4315 rtl_chip_supports_csum_v2(tp))
4316 features &= ~NETIF_F_CSUM_MASK;
4319 return vlan_features_check(skb, features);
4322 static void rtl8169_pcierr_interrupt(struct net_device *dev)
4324 struct rtl8169_private *tp = netdev_priv(dev);
4325 struct pci_dev *pdev = tp->pci_dev;
4326 int pci_status_errs;
4329 pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
4331 pci_status_errs = pci_status_get_and_clear_errors(pdev);
4333 if (net_ratelimit())
4334 netdev_err(dev, "PCI error (cmd = 0x%04x, status_errs = 0x%04x)\n",
4335 pci_cmd, pci_status_errs);
4337 * The recovery sequence below admits a very elaborated explanation:
4338 * - it seems to work;
4339 * - I did not see what else could be done;
4340 * - it makes iop3xx happy.
4342 * Feel free to adjust to your needs.
4344 if (pdev->broken_parity_status)
4345 pci_cmd &= ~PCI_COMMAND_PARITY;
4347 pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY;
4349 pci_write_config_word(pdev, PCI_COMMAND, pci_cmd);
4351 rtl_schedule_task(tp, RTL_FLAG_TASK_RESET_PENDING);
4354 static void rtl_tx(struct net_device *dev, struct rtl8169_private *tp,
4357 unsigned int dirty_tx, tx_left, bytes_compl = 0, pkts_compl = 0;
4359 dirty_tx = tp->dirty_tx;
4362 for (tx_left = tp->cur_tx - dirty_tx; tx_left > 0; tx_left--) {
4363 unsigned int entry = dirty_tx % NUM_TX_DESC;
4364 struct sk_buff *skb = tp->tx_skb[entry].skb;
4367 status = le32_to_cpu(tp->TxDescArray[entry].opts1);
4368 if (status & DescOwn)
4371 rtl8169_unmap_tx_skb(tp, entry);
4375 bytes_compl += skb->len;
4376 napi_consume_skb(skb, budget);
4381 if (tp->dirty_tx != dirty_tx) {
4382 netdev_completed_queue(dev, pkts_compl, bytes_compl);
4384 u64_stats_update_begin(&tp->tx_stats.syncp);
4385 tp->tx_stats.packets += pkts_compl;
4386 tp->tx_stats.bytes += bytes_compl;
4387 u64_stats_update_end(&tp->tx_stats.syncp);
4389 tp->dirty_tx = dirty_tx;
4390 /* Sync with rtl8169_start_xmit:
4391 * - publish dirty_tx ring index (write barrier)
4392 * - refresh cur_tx ring index and queue status (read barrier)
4393 * May the current thread miss the stopped queue condition,
4394 * a racing xmit thread can only have a right view of the
4398 if (netif_queue_stopped(dev) &&
4399 rtl_tx_slots_avail(tp, MAX_SKB_FRAGS)) {
4400 netif_wake_queue(dev);
4403 * 8168 hack: TxPoll requests are lost when the Tx packets are
4404 * too close. Let's kick an extra TxPoll request when a burst
4405 * of start_xmit activity is detected (if it is not detected,
4406 * it is slow enough). -- FR
4408 if (tp->cur_tx != dirty_tx)
4409 rtl8169_doorbell(tp);
4413 static inline int rtl8169_fragmented_frame(u32 status)
4415 return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag);
4418 static inline void rtl8169_rx_csum(struct sk_buff *skb, u32 opts1)
4420 u32 status = opts1 & RxProtoMask;
4422 if (((status == RxProtoTCP) && !(opts1 & TCPFail)) ||
4423 ((status == RxProtoUDP) && !(opts1 & UDPFail)))
4424 skb->ip_summed = CHECKSUM_UNNECESSARY;
4426 skb_checksum_none_assert(skb);
4429 static int rtl_rx(struct net_device *dev, struct rtl8169_private *tp, u32 budget)
4431 unsigned int cur_rx, rx_left, count;
4432 struct device *d = tp_to_dev(tp);
4434 cur_rx = tp->cur_rx;
4436 for (rx_left = min(budget, NUM_RX_DESC); rx_left > 0; rx_left--, cur_rx++) {
4437 unsigned int pkt_size, entry = cur_rx % NUM_RX_DESC;
4438 struct RxDesc *desc = tp->RxDescArray + entry;
4439 struct sk_buff *skb;
4444 status = le32_to_cpu(desc->opts1);
4445 if (status & DescOwn)
4448 /* This barrier is needed to keep us from reading
4449 * any other fields out of the Rx descriptor until
4450 * we know the status of DescOwn
4454 if (unlikely(status & RxRES)) {
4455 if (net_ratelimit())
4456 netdev_warn(dev, "Rx ERROR. status = %08x\n",
4458 dev->stats.rx_errors++;
4459 if (status & (RxRWT | RxRUNT))
4460 dev->stats.rx_length_errors++;
4462 dev->stats.rx_crc_errors++;
4464 if (!(dev->features & NETIF_F_RXALL))
4465 goto release_descriptor;
4466 else if (status & RxRWT || !(status & (RxRUNT | RxCRC)))
4467 goto release_descriptor;
4470 pkt_size = status & GENMASK(13, 0);
4471 if (likely(!(dev->features & NETIF_F_RXFCS)))
4472 pkt_size -= ETH_FCS_LEN;
4474 /* The driver does not support incoming fragmented frames.
4475 * They are seen as a symptom of over-mtu sized frames.
4477 if (unlikely(rtl8169_fragmented_frame(status))) {
4478 dev->stats.rx_dropped++;
4479 dev->stats.rx_length_errors++;
4480 goto release_descriptor;
4483 skb = napi_alloc_skb(&tp->napi, pkt_size);
4484 if (unlikely(!skb)) {
4485 dev->stats.rx_dropped++;
4486 goto release_descriptor;
4489 addr = le64_to_cpu(desc->addr);
4490 rx_buf = page_address(tp->Rx_databuff[entry]);
4492 dma_sync_single_for_cpu(d, addr, pkt_size, DMA_FROM_DEVICE);
4494 skb_copy_to_linear_data(skb, rx_buf, pkt_size);
4495 skb->tail += pkt_size;
4496 skb->len = pkt_size;
4497 dma_sync_single_for_device(d, addr, pkt_size, DMA_FROM_DEVICE);
4499 rtl8169_rx_csum(skb, status);
4500 skb->protocol = eth_type_trans(skb, dev);
4502 rtl8169_rx_vlan_tag(desc, skb);
4504 if (skb->pkt_type == PACKET_MULTICAST)
4505 dev->stats.multicast++;
4507 napi_gro_receive(&tp->napi, skb);
4509 u64_stats_update_begin(&tp->rx_stats.syncp);
4510 tp->rx_stats.packets++;
4511 tp->rx_stats.bytes += pkt_size;
4512 u64_stats_update_end(&tp->rx_stats.syncp);
4515 rtl8169_mark_to_asic(desc);
4518 count = cur_rx - tp->cur_rx;
4519 tp->cur_rx = cur_rx;
4524 static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
4526 struct rtl8169_private *tp = dev_instance;
4527 u32 status = rtl_get_events(tp);
4529 if (!tp->irq_enabled || (status & 0xffff) == 0xffff ||
4530 !(status & tp->irq_mask))
4533 if (unlikely(status & SYSErr)) {
4534 rtl8169_pcierr_interrupt(tp->dev);
4538 if (status & LinkChg)
4539 phy_mac_interrupt(tp->phydev);
4541 if (unlikely(status & RxFIFOOver &&
4542 tp->mac_version == RTL_GIGA_MAC_VER_11)) {
4543 netif_stop_queue(tp->dev);
4544 rtl_schedule_task(tp, RTL_FLAG_TASK_RESET_PENDING);
4547 rtl_irq_disable(tp);
4548 napi_schedule_irqoff(&tp->napi);
4550 rtl_ack_events(tp, status);
4555 static void rtl_task(struct work_struct *work)
4557 struct rtl8169_private *tp =
4558 container_of(work, struct rtl8169_private, wk.work);
4562 if (!netif_running(tp->dev) ||
4563 !test_bit(RTL_FLAG_TASK_ENABLED, tp->wk.flags))
4566 if (test_and_clear_bit(RTL_FLAG_TASK_RESET_PENDING, tp->wk.flags))
4569 rtl_unlock_work(tp);
4572 static int rtl8169_poll(struct napi_struct *napi, int budget)
4574 struct rtl8169_private *tp = container_of(napi, struct rtl8169_private, napi);
4575 struct net_device *dev = tp->dev;
4578 work_done = rtl_rx(dev, tp, (u32) budget);
4580 rtl_tx(dev, tp, budget);
4582 if (work_done < budget) {
4583 napi_complete_done(napi, work_done);
4590 static void r8169_phylink_handler(struct net_device *ndev)
4592 struct rtl8169_private *tp = netdev_priv(ndev);
4594 if (netif_carrier_ok(ndev)) {
4595 rtl_link_chg_patch(tp);
4596 pm_request_resume(&tp->pci_dev->dev);
4598 pm_runtime_idle(&tp->pci_dev->dev);
4601 if (net_ratelimit())
4602 phy_print_status(tp->phydev);
4605 static int r8169_phy_connect(struct rtl8169_private *tp)
4607 struct phy_device *phydev = tp->phydev;
4608 phy_interface_t phy_mode;
4611 phy_mode = tp->supports_gmii ? PHY_INTERFACE_MODE_GMII :
4612 PHY_INTERFACE_MODE_MII;
4614 ret = phy_connect_direct(tp->dev, phydev, r8169_phylink_handler,
4619 if (!tp->supports_gmii)
4620 phy_set_max_speed(phydev, SPEED_100);
4622 phy_support_asym_pause(phydev);
4624 phy_attached_info(phydev);
4629 static void rtl8169_down(struct net_device *dev)
4631 struct rtl8169_private *tp = netdev_priv(dev);
4633 phy_stop(tp->phydev);
4635 napi_disable(&tp->napi);
4636 netif_stop_queue(dev);
4638 rtl8169_hw_reset(tp);
4640 /* Give a racing hard_start_xmit a few cycles to complete. */
4643 rtl8169_tx_clear(tp);
4645 rtl8169_rx_clear(tp);
4647 rtl_pll_power_down(tp);
4650 static int rtl8169_close(struct net_device *dev)
4652 struct rtl8169_private *tp = netdev_priv(dev);
4653 struct pci_dev *pdev = tp->pci_dev;
4655 pm_runtime_get_sync(&pdev->dev);
4657 /* Update counters before going down */
4658 rtl8169_update_counters(tp);
4661 /* Clear all task flags */
4662 bitmap_zero(tp->wk.flags, RTL_FLAG_MAX);
4665 rtl_unlock_work(tp);
4667 cancel_work_sync(&tp->wk.work);
4669 phy_disconnect(tp->phydev);
4671 pci_free_irq(pdev, 0, tp);
4673 dma_free_coherent(&pdev->dev, R8169_RX_RING_BYTES, tp->RxDescArray,
4675 dma_free_coherent(&pdev->dev, R8169_TX_RING_BYTES, tp->TxDescArray,
4677 tp->TxDescArray = NULL;
4678 tp->RxDescArray = NULL;
4680 pm_runtime_put_sync(&pdev->dev);
4685 #ifdef CONFIG_NET_POLL_CONTROLLER
4686 static void rtl8169_netpoll(struct net_device *dev)
4688 struct rtl8169_private *tp = netdev_priv(dev);
4690 rtl8169_interrupt(pci_irq_vector(tp->pci_dev, 0), tp);
4694 static int rtl_open(struct net_device *dev)
4696 struct rtl8169_private *tp = netdev_priv(dev);
4697 struct pci_dev *pdev = tp->pci_dev;
4698 int retval = -ENOMEM;
4700 pm_runtime_get_sync(&pdev->dev);
4703 * Rx and Tx descriptors needs 256 bytes alignment.
4704 * dma_alloc_coherent provides more.
4706 tp->TxDescArray = dma_alloc_coherent(&pdev->dev, R8169_TX_RING_BYTES,
4707 &tp->TxPhyAddr, GFP_KERNEL);
4708 if (!tp->TxDescArray)
4709 goto err_pm_runtime_put;
4711 tp->RxDescArray = dma_alloc_coherent(&pdev->dev, R8169_RX_RING_BYTES,
4712 &tp->RxPhyAddr, GFP_KERNEL);
4713 if (!tp->RxDescArray)
4716 retval = rtl8169_init_ring(tp);
4720 rtl_request_firmware(tp);
4722 retval = pci_request_irq(pdev, 0, rtl8169_interrupt, NULL, tp,
4725 goto err_release_fw_2;
4727 retval = r8169_phy_connect(tp);
4733 set_bit(RTL_FLAG_TASK_ENABLED, tp->wk.flags);
4735 napi_enable(&tp->napi);
4737 rtl8169_init_phy(tp);
4739 rtl_pll_power_up(tp);
4743 rtl8169_init_counter_offsets(tp);
4745 phy_start(tp->phydev);
4746 netif_start_queue(dev);
4748 rtl_unlock_work(tp);
4750 pm_runtime_put_sync(&pdev->dev);
4755 pci_free_irq(pdev, 0, tp);
4757 rtl_release_firmware(tp);
4758 rtl8169_rx_clear(tp);
4760 dma_free_coherent(&pdev->dev, R8169_RX_RING_BYTES, tp->RxDescArray,
4762 tp->RxDescArray = NULL;
4764 dma_free_coherent(&pdev->dev, R8169_TX_RING_BYTES, tp->TxDescArray,
4766 tp->TxDescArray = NULL;
4768 pm_runtime_put_noidle(&pdev->dev);
4773 rtl8169_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
4775 struct rtl8169_private *tp = netdev_priv(dev);
4776 struct pci_dev *pdev = tp->pci_dev;
4777 struct rtl8169_counters *counters = tp->counters;
4780 pm_runtime_get_noresume(&pdev->dev);
4782 netdev_stats_to_stats64(stats, &dev->stats);
4785 start = u64_stats_fetch_begin_irq(&tp->rx_stats.syncp);
4786 stats->rx_packets = tp->rx_stats.packets;
4787 stats->rx_bytes = tp->rx_stats.bytes;
4788 } while (u64_stats_fetch_retry_irq(&tp->rx_stats.syncp, start));
4791 start = u64_stats_fetch_begin_irq(&tp->tx_stats.syncp);
4792 stats->tx_packets = tp->tx_stats.packets;
4793 stats->tx_bytes = tp->tx_stats.bytes;
4794 } while (u64_stats_fetch_retry_irq(&tp->tx_stats.syncp, start));
4797 * Fetch additional counter values missing in stats collected by driver
4798 * from tally counters.
4800 if (pm_runtime_active(&pdev->dev))
4801 rtl8169_update_counters(tp);
4804 * Subtract values fetched during initalization.
4805 * See rtl8169_init_counter_offsets for a description why we do that.
4807 stats->tx_errors = le64_to_cpu(counters->tx_errors) -
4808 le64_to_cpu(tp->tc_offset.tx_errors);
4809 stats->collisions = le32_to_cpu(counters->tx_multi_collision) -
4810 le32_to_cpu(tp->tc_offset.tx_multi_collision);
4811 stats->tx_aborted_errors = le16_to_cpu(counters->tx_aborted) -
4812 le16_to_cpu(tp->tc_offset.tx_aborted);
4813 stats->rx_missed_errors = le16_to_cpu(counters->rx_missed) -
4814 le16_to_cpu(tp->tc_offset.rx_missed);
4816 pm_runtime_put_noidle(&pdev->dev);
4819 static void rtl8169_net_suspend(struct net_device *dev)
4821 struct rtl8169_private *tp = netdev_priv(dev);
4823 if (!netif_running(dev))
4826 phy_stop(tp->phydev);
4827 netif_device_detach(dev);
4830 napi_disable(&tp->napi);
4831 /* Clear all task flags */
4832 bitmap_zero(tp->wk.flags, RTL_FLAG_MAX);
4834 rtl_unlock_work(tp);
4836 rtl_pll_power_down(tp);
4841 static int rtl8169_suspend(struct device *device)
4843 struct net_device *dev = dev_get_drvdata(device);
4844 struct rtl8169_private *tp = netdev_priv(dev);
4846 rtl8169_net_suspend(dev);
4847 clk_disable_unprepare(tp->clk);
4852 static void __rtl8169_resume(struct net_device *dev)
4854 struct rtl8169_private *tp = netdev_priv(dev);
4856 netif_device_attach(dev);
4858 rtl_pll_power_up(tp);
4859 rtl8169_init_phy(tp);
4861 phy_start(tp->phydev);
4864 napi_enable(&tp->napi);
4865 set_bit(RTL_FLAG_TASK_ENABLED, tp->wk.flags);
4867 rtl_unlock_work(tp);
4870 static int rtl8169_resume(struct device *device)
4872 struct net_device *dev = dev_get_drvdata(device);
4873 struct rtl8169_private *tp = netdev_priv(dev);
4875 rtl_rar_set(tp, dev->dev_addr);
4877 clk_prepare_enable(tp->clk);
4879 if (netif_running(dev))
4880 __rtl8169_resume(dev);
4885 static int rtl8169_runtime_suspend(struct device *device)
4887 struct net_device *dev = dev_get_drvdata(device);
4888 struct rtl8169_private *tp = netdev_priv(dev);
4890 if (!tp->TxDescArray)
4894 __rtl8169_set_wol(tp, WAKE_ANY);
4895 rtl_unlock_work(tp);
4897 rtl8169_net_suspend(dev);
4899 /* Update counters before going runtime suspend */
4900 rtl8169_update_counters(tp);
4905 static int rtl8169_runtime_resume(struct device *device)
4907 struct net_device *dev = dev_get_drvdata(device);
4908 struct rtl8169_private *tp = netdev_priv(dev);
4910 rtl_rar_set(tp, dev->dev_addr);
4912 if (!tp->TxDescArray)
4916 __rtl8169_set_wol(tp, tp->saved_wolopts);
4917 rtl_unlock_work(tp);
4919 __rtl8169_resume(dev);
4924 static int rtl8169_runtime_idle(struct device *device)
4926 struct net_device *dev = dev_get_drvdata(device);
4928 if (!netif_running(dev) || !netif_carrier_ok(dev))
4929 pm_schedule_suspend(device, 10000);
4934 static const struct dev_pm_ops rtl8169_pm_ops = {
4935 .suspend = rtl8169_suspend,
4936 .resume = rtl8169_resume,
4937 .freeze = rtl8169_suspend,
4938 .thaw = rtl8169_resume,
4939 .poweroff = rtl8169_suspend,
4940 .restore = rtl8169_resume,
4941 .runtime_suspend = rtl8169_runtime_suspend,
4942 .runtime_resume = rtl8169_runtime_resume,
4943 .runtime_idle = rtl8169_runtime_idle,
4946 #define RTL8169_PM_OPS (&rtl8169_pm_ops)
4948 #else /* !CONFIG_PM */
4950 #define RTL8169_PM_OPS NULL
4952 #endif /* !CONFIG_PM */
4954 static void rtl_wol_shutdown_quirk(struct rtl8169_private *tp)
4956 /* WoL fails with 8168b when the receiver is disabled. */
4957 switch (tp->mac_version) {
4958 case RTL_GIGA_MAC_VER_11:
4959 case RTL_GIGA_MAC_VER_12:
4960 case RTL_GIGA_MAC_VER_17:
4961 pci_clear_master(tp->pci_dev);
4963 RTL_W8(tp, ChipCmd, CmdRxEnb);
4971 static void rtl_shutdown(struct pci_dev *pdev)
4973 struct net_device *dev = pci_get_drvdata(pdev);
4974 struct rtl8169_private *tp = netdev_priv(dev);
4976 rtl8169_net_suspend(dev);
4978 /* Restore original MAC address */
4979 rtl_rar_set(tp, dev->perm_addr);
4981 rtl8169_hw_reset(tp);
4983 if (system_state == SYSTEM_POWER_OFF) {
4984 if (tp->saved_wolopts) {
4985 rtl_wol_suspend_quirk(tp);
4986 rtl_wol_shutdown_quirk(tp);
4989 pci_wake_from_d3(pdev, true);
4990 pci_set_power_state(pdev, PCI_D3hot);
4994 static void rtl_remove_one(struct pci_dev *pdev)
4996 struct net_device *dev = pci_get_drvdata(pdev);
4997 struct rtl8169_private *tp = netdev_priv(dev);
4999 if (r8168_check_dash(tp))
5000 rtl8168_driver_stop(tp);
5002 netif_napi_del(&tp->napi);
5004 unregister_netdev(dev);
5006 rtl_release_firmware(tp);
5008 if (pci_dev_run_wake(pdev))
5009 pm_runtime_get_noresume(&pdev->dev);
5011 /* restore original MAC address */
5012 rtl_rar_set(tp, dev->perm_addr);
5015 static const struct net_device_ops rtl_netdev_ops = {
5016 .ndo_open = rtl_open,
5017 .ndo_stop = rtl8169_close,
5018 .ndo_get_stats64 = rtl8169_get_stats64,
5019 .ndo_start_xmit = rtl8169_start_xmit,
5020 .ndo_features_check = rtl8169_features_check,
5021 .ndo_tx_timeout = rtl8169_tx_timeout,
5022 .ndo_validate_addr = eth_validate_addr,
5023 .ndo_change_mtu = rtl8169_change_mtu,
5024 .ndo_fix_features = rtl8169_fix_features,
5025 .ndo_set_features = rtl8169_set_features,
5026 .ndo_set_mac_address = rtl_set_mac_address,
5027 .ndo_do_ioctl = phy_do_ioctl_running,
5028 .ndo_set_rx_mode = rtl_set_rx_mode,
5029 #ifdef CONFIG_NET_POLL_CONTROLLER
5030 .ndo_poll_controller = rtl8169_netpoll,
5035 static void rtl_set_irq_mask(struct rtl8169_private *tp)
5037 tp->irq_mask = RxOK | RxErr | TxOK | TxErr | LinkChg;
5039 if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
5040 tp->irq_mask |= SYSErr | RxOverflow | RxFIFOOver;
5041 else if (tp->mac_version == RTL_GIGA_MAC_VER_11)
5042 /* special workaround needed */
5043 tp->irq_mask |= RxFIFOOver;
5045 tp->irq_mask |= RxOverflow;
5048 static int rtl_alloc_irq(struct rtl8169_private *tp)
5052 switch (tp->mac_version) {
5053 case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
5054 rtl_unlock_config_regs(tp);
5055 RTL_W8(tp, Config2, RTL_R8(tp, Config2) & ~MSIEnable);
5056 rtl_lock_config_regs(tp);
5058 case RTL_GIGA_MAC_VER_07 ... RTL_GIGA_MAC_VER_17:
5059 flags = PCI_IRQ_LEGACY;
5062 flags = PCI_IRQ_ALL_TYPES;
5066 return pci_alloc_irq_vectors(tp->pci_dev, 1, 1, flags);
5069 static void rtl_read_mac_address(struct rtl8169_private *tp,
5070 u8 mac_addr[ETH_ALEN])
5072 /* Get MAC address */
5073 if (rtl_is_8168evl_up(tp) && tp->mac_version != RTL_GIGA_MAC_VER_34) {
5074 u32 value = rtl_eri_read(tp, 0xe0);
5076 mac_addr[0] = (value >> 0) & 0xff;
5077 mac_addr[1] = (value >> 8) & 0xff;
5078 mac_addr[2] = (value >> 16) & 0xff;
5079 mac_addr[3] = (value >> 24) & 0xff;
5081 value = rtl_eri_read(tp, 0xe4);
5082 mac_addr[4] = (value >> 0) & 0xff;
5083 mac_addr[5] = (value >> 8) & 0xff;
5084 } else if (rtl_is_8125(tp)) {
5085 rtl_read_mac_from_reg(tp, mac_addr, MAC0_BKP);
5089 DECLARE_RTL_COND(rtl_link_list_ready_cond)
5091 return RTL_R8(tp, MCU) & LINK_LIST_RDY;
5094 static void r8168g_wait_ll_share_fifo_ready(struct rtl8169_private *tp)
5096 rtl_loop_wait_high(tp, &rtl_link_list_ready_cond, 100, 42);
5099 static int r8169_mdio_read_reg(struct mii_bus *mii_bus, int phyaddr, int phyreg)
5101 struct rtl8169_private *tp = mii_bus->priv;
5106 return rtl_readphy(tp, phyreg);
5109 static int r8169_mdio_write_reg(struct mii_bus *mii_bus, int phyaddr,
5110 int phyreg, u16 val)
5112 struct rtl8169_private *tp = mii_bus->priv;
5117 rtl_writephy(tp, phyreg, val);
5122 static int r8169_mdio_register(struct rtl8169_private *tp)
5124 struct pci_dev *pdev = tp->pci_dev;
5125 struct mii_bus *new_bus;
5128 new_bus = devm_mdiobus_alloc(&pdev->dev);
5132 new_bus->name = "r8169";
5134 new_bus->parent = &pdev->dev;
5135 new_bus->irq[0] = PHY_IGNORE_INTERRUPT;
5136 snprintf(new_bus->id, MII_BUS_ID_SIZE, "r8169-%x", pci_dev_id(pdev));
5138 new_bus->read = r8169_mdio_read_reg;
5139 new_bus->write = r8169_mdio_write_reg;
5141 ret = devm_mdiobus_register(new_bus);
5145 tp->phydev = mdiobus_get_phy(new_bus, 0);
5148 } else if (!tp->phydev->drv) {
5149 /* Most chip versions fail with the genphy driver.
5150 * Therefore ensure that the dedicated PHY driver is loaded.
5152 dev_err(&pdev->dev, "no dedicated PHY driver found for PHY ID 0x%08x, maybe realtek.ko needs to be added to initramfs?\n",
5153 tp->phydev->phy_id);
5157 /* PHY will be woken up in rtl_open() */
5158 phy_suspend(tp->phydev);
5163 static void rtl_hw_init_8168g(struct rtl8169_private *tp)
5165 rtl_enable_rxdvgate(tp);
5167 RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) & ~(CmdTxEnb | CmdRxEnb));
5169 RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
5171 r8168_mac_ocp_modify(tp, 0xe8de, BIT(14), 0);
5172 r8168g_wait_ll_share_fifo_ready(tp);
5174 r8168_mac_ocp_modify(tp, 0xe8de, 0, BIT(15));
5175 r8168g_wait_ll_share_fifo_ready(tp);
5178 static void rtl_hw_init_8125(struct rtl8169_private *tp)
5180 rtl_enable_rxdvgate(tp);
5182 RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) & ~(CmdTxEnb | CmdRxEnb));
5184 RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
5186 r8168_mac_ocp_modify(tp, 0xe8de, BIT(14), 0);
5187 r8168g_wait_ll_share_fifo_ready(tp);
5189 r8168_mac_ocp_write(tp, 0xc0aa, 0x07d0);
5190 r8168_mac_ocp_write(tp, 0xc0a6, 0x0150);
5191 r8168_mac_ocp_write(tp, 0xc01e, 0x5555);
5192 r8168g_wait_ll_share_fifo_ready(tp);
5195 static void rtl_hw_initialize(struct rtl8169_private *tp)
5197 switch (tp->mac_version) {
5198 case RTL_GIGA_MAC_VER_49 ... RTL_GIGA_MAC_VER_52:
5199 rtl8168ep_stop_cmac(tp);
5201 case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_48:
5202 rtl_hw_init_8168g(tp);
5204 case RTL_GIGA_MAC_VER_60 ... RTL_GIGA_MAC_VER_61:
5205 rtl_hw_init_8125(tp);
5212 static int rtl_jumbo_max(struct rtl8169_private *tp)
5214 /* Non-GBit versions don't support jumbo frames */
5215 if (!tp->supports_gmii)
5218 switch (tp->mac_version) {
5220 case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
5223 case RTL_GIGA_MAC_VER_11:
5224 case RTL_GIGA_MAC_VER_12:
5225 case RTL_GIGA_MAC_VER_17:
5228 case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_24:
5235 static void rtl_disable_clk(void *data)
5237 clk_disable_unprepare(data);
5240 static int rtl_get_ether_clk(struct rtl8169_private *tp)
5242 struct device *d = tp_to_dev(tp);
5246 clk = devm_clk_get(d, "ether_clk");
5250 /* clk-core allows NULL (for suspend / resume) */
5252 else if (rc != -EPROBE_DEFER)
5253 dev_err(d, "failed to get clk: %d\n", rc);
5256 rc = clk_prepare_enable(clk);
5258 dev_err(d, "failed to enable clk: %d\n", rc);
5260 rc = devm_add_action_or_reset(d, rtl_disable_clk, clk);
5266 static void rtl_init_mac_address(struct rtl8169_private *tp)
5268 struct net_device *dev = tp->dev;
5269 u8 *mac_addr = dev->dev_addr;
5272 rc = eth_platform_get_mac_address(tp_to_dev(tp), mac_addr);
5276 rtl_read_mac_address(tp, mac_addr);
5277 if (is_valid_ether_addr(mac_addr))
5280 rtl_read_mac_from_reg(tp, mac_addr, MAC0);
5281 if (is_valid_ether_addr(mac_addr))
5284 eth_hw_addr_random(dev);
5285 dev_warn(tp_to_dev(tp), "can't read MAC address, setting random one\n");
5287 rtl_rar_set(tp, mac_addr);
5290 static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
5292 struct rtl8169_private *tp;
5293 int jumbo_max, region, rc;
5294 enum mac_version chipset;
5295 struct net_device *dev;
5298 dev = devm_alloc_etherdev(&pdev->dev, sizeof (*tp));
5302 SET_NETDEV_DEV(dev, &pdev->dev);
5303 dev->netdev_ops = &rtl_netdev_ops;
5304 tp = netdev_priv(dev);
5307 tp->supports_gmii = ent->driver_data == RTL_CFG_NO_GBIT ? 0 : 1;
5309 tp->ocp_base = OCP_STD_PHY_BASE;
5311 /* Get the *optional* external "ether_clk" used on some boards */
5312 rc = rtl_get_ether_clk(tp);
5316 /* Disable ASPM completely as that cause random device stop working
5317 * problems as well as full system hangs for some PCIe devices users.
5319 rc = pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S |
5320 PCIE_LINK_STATE_L1);
5321 tp->aspm_manageable = !rc;
5323 /* enable device (incl. PCI PM wakeup and hotplug setup) */
5324 rc = pcim_enable_device(pdev);
5326 dev_err(&pdev->dev, "enable failure\n");
5330 if (pcim_set_mwi(pdev) < 0)
5331 dev_info(&pdev->dev, "Mem-Wr-Inval unavailable\n");
5333 /* use first MMIO region */
5334 region = ffs(pci_select_bars(pdev, IORESOURCE_MEM)) - 1;
5336 dev_err(&pdev->dev, "no MMIO resource found\n");
5340 /* check for weird/broken PCI region reporting */
5341 if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) {
5342 dev_err(&pdev->dev, "Invalid PCI region size(s), aborting\n");
5346 rc = pcim_iomap_regions(pdev, BIT(region), MODULENAME);
5348 dev_err(&pdev->dev, "cannot remap MMIO, aborting\n");
5352 tp->mmio_addr = pcim_iomap_table(pdev)[region];
5354 xid = (RTL_R32(tp, TxConfig) >> 20) & 0xfcf;
5356 /* Identify chip attached to board */
5357 chipset = rtl8169_get_mac_version(xid, tp->supports_gmii);
5358 if (chipset == RTL_GIGA_MAC_NONE) {
5359 dev_err(&pdev->dev, "unknown chip XID %03x\n", xid);
5363 tp->mac_version = chipset;
5365 tp->cp_cmd = RTL_R16(tp, CPlusCmd) & CPCMD_MASK;
5367 if (sizeof(dma_addr_t) > 4 && tp->mac_version >= RTL_GIGA_MAC_VER_18 &&
5368 !dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)))
5369 dev->features |= NETIF_F_HIGHDMA;
5373 rtl8169_irq_mask_and_ack(tp);
5375 rtl_hw_initialize(tp);
5379 pci_set_master(pdev);
5381 rc = rtl_alloc_irq(tp);
5383 dev_err(&pdev->dev, "Can't allocate interrupt\n");
5387 mutex_init(&tp->wk.mutex);
5388 INIT_WORK(&tp->wk.work, rtl_task);
5389 u64_stats_init(&tp->rx_stats.syncp);
5390 u64_stats_init(&tp->tx_stats.syncp);
5392 rtl_init_mac_address(tp);
5394 dev->ethtool_ops = &rtl8169_ethtool_ops;
5396 netif_napi_add(dev, &tp->napi, rtl8169_poll, NAPI_POLL_WEIGHT);
5398 dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
5399 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
5400 dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO;
5401 dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
5404 * Pretend we are using VLANs; This bypasses a nasty bug where
5405 * Interrupts stop flowing on high load on 8110SCd controllers.
5407 if (tp->mac_version == RTL_GIGA_MAC_VER_05)
5408 /* Disallow toggling */
5409 dev->hw_features &= ~NETIF_F_HW_VLAN_CTAG_RX;
5411 if (rtl_chip_supports_csum_v2(tp))
5412 dev->hw_features |= NETIF_F_IPV6_CSUM;
5414 dev->features |= dev->hw_features;
5416 /* There has been a number of reports that using SG/TSO results in
5417 * tx timeouts. However for a lot of people SG/TSO works fine.
5418 * Therefore disable both features by default, but allow users to
5419 * enable them. Use at own risk!
5421 if (rtl_chip_supports_csum_v2(tp)) {
5422 dev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6;
5423 dev->gso_max_size = RTL_GSO_MAX_SIZE_V2;
5424 dev->gso_max_segs = RTL_GSO_MAX_SEGS_V2;
5426 dev->hw_features |= NETIF_F_SG | NETIF_F_TSO;
5427 dev->gso_max_size = RTL_GSO_MAX_SIZE_V1;
5428 dev->gso_max_segs = RTL_GSO_MAX_SEGS_V1;
5431 dev->hw_features |= NETIF_F_RXALL;
5432 dev->hw_features |= NETIF_F_RXFCS;
5434 /* configure chip for default features */
5435 rtl8169_set_features(dev, dev->features);
5437 jumbo_max = rtl_jumbo_max(tp);
5439 dev->max_mtu = jumbo_max;
5441 rtl_set_irq_mask(tp);
5443 tp->fw_name = rtl_chip_infos[chipset].fw_name;
5445 tp->counters = dmam_alloc_coherent (&pdev->dev, sizeof(*tp->counters),
5446 &tp->counters_phys_addr,
5451 pci_set_drvdata(pdev, dev);
5453 rc = r8169_mdio_register(tp);
5457 /* chip gets powered up in rtl_open() */
5458 rtl_pll_power_down(tp);
5460 rc = register_netdev(dev);
5464 netdev_info(dev, "%s, %pM, XID %03x, IRQ %d\n",
5465 rtl_chip_infos[chipset].name, dev->dev_addr, xid,
5466 pci_irq_vector(pdev, 0));
5469 netdev_info(dev, "jumbo features [frames: %d bytes, tx checksumming: %s]\n",
5470 jumbo_max, tp->mac_version <= RTL_GIGA_MAC_VER_06 ?
5473 if (r8168_check_dash(tp))
5474 rtl8168_driver_start(tp);
5476 if (pci_dev_run_wake(pdev))
5477 pm_runtime_put_sync(&pdev->dev);
5482 static struct pci_driver rtl8169_pci_driver = {
5484 .id_table = rtl8169_pci_tbl,
5485 .probe = rtl_init_one,
5486 .remove = rtl_remove_one,
5487 .shutdown = rtl_shutdown,
5488 .driver.pm = RTL8169_PM_OPS,
5491 module_pci_driver(rtl8169_pci_driver);