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 <asm/unaligned.h>
32 #include <net/ip6_checksum.h>
35 #include "r8169_firmware.h"
37 #define MODULENAME "r8169"
39 #define FIRMWARE_8168D_1 "rtl_nic/rtl8168d-1.fw"
40 #define FIRMWARE_8168D_2 "rtl_nic/rtl8168d-2.fw"
41 #define FIRMWARE_8168E_1 "rtl_nic/rtl8168e-1.fw"
42 #define FIRMWARE_8168E_2 "rtl_nic/rtl8168e-2.fw"
43 #define FIRMWARE_8168E_3 "rtl_nic/rtl8168e-3.fw"
44 #define FIRMWARE_8168F_1 "rtl_nic/rtl8168f-1.fw"
45 #define FIRMWARE_8168F_2 "rtl_nic/rtl8168f-2.fw"
46 #define FIRMWARE_8105E_1 "rtl_nic/rtl8105e-1.fw"
47 #define FIRMWARE_8402_1 "rtl_nic/rtl8402-1.fw"
48 #define FIRMWARE_8411_1 "rtl_nic/rtl8411-1.fw"
49 #define FIRMWARE_8411_2 "rtl_nic/rtl8411-2.fw"
50 #define FIRMWARE_8106E_1 "rtl_nic/rtl8106e-1.fw"
51 #define FIRMWARE_8106E_2 "rtl_nic/rtl8106e-2.fw"
52 #define FIRMWARE_8168G_2 "rtl_nic/rtl8168g-2.fw"
53 #define FIRMWARE_8168G_3 "rtl_nic/rtl8168g-3.fw"
54 #define FIRMWARE_8168H_1 "rtl_nic/rtl8168h-1.fw"
55 #define FIRMWARE_8168H_2 "rtl_nic/rtl8168h-2.fw"
56 #define FIRMWARE_8168FP_3 "rtl_nic/rtl8168fp-3.fw"
57 #define FIRMWARE_8107E_1 "rtl_nic/rtl8107e-1.fw"
58 #define FIRMWARE_8107E_2 "rtl_nic/rtl8107e-2.fw"
59 #define FIRMWARE_8125A_3 "rtl_nic/rtl8125a-3.fw"
60 #define FIRMWARE_8125B_2 "rtl_nic/rtl8125b-2.fw"
62 /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
63 The RTL chips use a 64 element hash table based on the Ethernet CRC. */
64 #define MC_FILTER_LIMIT 32
66 #define TX_DMA_BURST 7 /* Maximum PCI burst, '7' is unlimited */
67 #define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */
69 #define R8169_REGS_SIZE 256
70 #define R8169_RX_BUF_SIZE (SZ_16K - 1)
71 #define NUM_TX_DESC 256 /* Number of Tx descriptor registers */
72 #define NUM_RX_DESC 256 /* Number of Rx descriptor registers */
73 #define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc))
74 #define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc))
76 #define OCP_STD_PHY_BASE 0xa400
78 #define RTL_CFG_NO_GBIT 1
80 /* write/read MMIO register */
81 #define RTL_W8(tp, reg, val8) writeb((val8), tp->mmio_addr + (reg))
82 #define RTL_W16(tp, reg, val16) writew((val16), tp->mmio_addr + (reg))
83 #define RTL_W32(tp, reg, val32) writel((val32), tp->mmio_addr + (reg))
84 #define RTL_R8(tp, reg) readb(tp->mmio_addr + (reg))
85 #define RTL_R16(tp, reg) readw(tp->mmio_addr + (reg))
86 #define RTL_R32(tp, reg) readl(tp->mmio_addr + (reg))
88 #define JUMBO_4K (4 * SZ_1K - VLAN_ETH_HLEN - ETH_FCS_LEN)
89 #define JUMBO_6K (6 * SZ_1K - VLAN_ETH_HLEN - ETH_FCS_LEN)
90 #define JUMBO_7K (7 * SZ_1K - VLAN_ETH_HLEN - ETH_FCS_LEN)
91 #define JUMBO_9K (9 * SZ_1K - VLAN_ETH_HLEN - ETH_FCS_LEN)
96 } rtl_chip_infos[] = {
98 [RTL_GIGA_MAC_VER_02] = {"RTL8169s" },
99 [RTL_GIGA_MAC_VER_03] = {"RTL8110s" },
100 [RTL_GIGA_MAC_VER_04] = {"RTL8169sb/8110sb" },
101 [RTL_GIGA_MAC_VER_05] = {"RTL8169sc/8110sc" },
102 [RTL_GIGA_MAC_VER_06] = {"RTL8169sc/8110sc" },
104 [RTL_GIGA_MAC_VER_07] = {"RTL8102e" },
105 [RTL_GIGA_MAC_VER_08] = {"RTL8102e" },
106 [RTL_GIGA_MAC_VER_09] = {"RTL8102e/RTL8103e" },
107 [RTL_GIGA_MAC_VER_10] = {"RTL8101e" },
108 [RTL_GIGA_MAC_VER_11] = {"RTL8168b/8111b" },
109 [RTL_GIGA_MAC_VER_12] = {"RTL8168b/8111b" },
110 [RTL_GIGA_MAC_VER_13] = {"RTL8101e/RTL8100e" },
111 [RTL_GIGA_MAC_VER_14] = {"RTL8401" },
112 [RTL_GIGA_MAC_VER_16] = {"RTL8101e" },
113 [RTL_GIGA_MAC_VER_17] = {"RTL8168b/8111b" },
114 [RTL_GIGA_MAC_VER_18] = {"RTL8168cp/8111cp" },
115 [RTL_GIGA_MAC_VER_19] = {"RTL8168c/8111c" },
116 [RTL_GIGA_MAC_VER_20] = {"RTL8168c/8111c" },
117 [RTL_GIGA_MAC_VER_21] = {"RTL8168c/8111c" },
118 [RTL_GIGA_MAC_VER_22] = {"RTL8168c/8111c" },
119 [RTL_GIGA_MAC_VER_23] = {"RTL8168cp/8111cp" },
120 [RTL_GIGA_MAC_VER_24] = {"RTL8168cp/8111cp" },
121 [RTL_GIGA_MAC_VER_25] = {"RTL8168d/8111d", FIRMWARE_8168D_1},
122 [RTL_GIGA_MAC_VER_26] = {"RTL8168d/8111d", FIRMWARE_8168D_2},
123 [RTL_GIGA_MAC_VER_27] = {"RTL8168dp/8111dp" },
124 [RTL_GIGA_MAC_VER_28] = {"RTL8168dp/8111dp" },
125 [RTL_GIGA_MAC_VER_29] = {"RTL8105e", FIRMWARE_8105E_1},
126 [RTL_GIGA_MAC_VER_30] = {"RTL8105e", FIRMWARE_8105E_1},
127 [RTL_GIGA_MAC_VER_31] = {"RTL8168dp/8111dp" },
128 [RTL_GIGA_MAC_VER_32] = {"RTL8168e/8111e", FIRMWARE_8168E_1},
129 [RTL_GIGA_MAC_VER_33] = {"RTL8168e/8111e", FIRMWARE_8168E_2},
130 [RTL_GIGA_MAC_VER_34] = {"RTL8168evl/8111evl", FIRMWARE_8168E_3},
131 [RTL_GIGA_MAC_VER_35] = {"RTL8168f/8111f", FIRMWARE_8168F_1},
132 [RTL_GIGA_MAC_VER_36] = {"RTL8168f/8111f", FIRMWARE_8168F_2},
133 [RTL_GIGA_MAC_VER_37] = {"RTL8402", FIRMWARE_8402_1 },
134 [RTL_GIGA_MAC_VER_38] = {"RTL8411", FIRMWARE_8411_1 },
135 [RTL_GIGA_MAC_VER_39] = {"RTL8106e", FIRMWARE_8106E_1},
136 [RTL_GIGA_MAC_VER_40] = {"RTL8168g/8111g", FIRMWARE_8168G_2},
137 [RTL_GIGA_MAC_VER_41] = {"RTL8168g/8111g" },
138 [RTL_GIGA_MAC_VER_42] = {"RTL8168gu/8111gu", FIRMWARE_8168G_3},
139 [RTL_GIGA_MAC_VER_43] = {"RTL8106eus", FIRMWARE_8106E_2},
140 [RTL_GIGA_MAC_VER_44] = {"RTL8411b", FIRMWARE_8411_2 },
141 [RTL_GIGA_MAC_VER_45] = {"RTL8168h/8111h", FIRMWARE_8168H_1},
142 [RTL_GIGA_MAC_VER_46] = {"RTL8168h/8111h", FIRMWARE_8168H_2},
143 [RTL_GIGA_MAC_VER_47] = {"RTL8107e", FIRMWARE_8107E_1},
144 [RTL_GIGA_MAC_VER_48] = {"RTL8107e", FIRMWARE_8107E_2},
145 [RTL_GIGA_MAC_VER_49] = {"RTL8168ep/8111ep" },
146 [RTL_GIGA_MAC_VER_50] = {"RTL8168ep/8111ep" },
147 [RTL_GIGA_MAC_VER_51] = {"RTL8168ep/8111ep" },
148 [RTL_GIGA_MAC_VER_52] = {"RTL8168fp/RTL8117", FIRMWARE_8168FP_3},
149 [RTL_GIGA_MAC_VER_53] = {"RTL8168fp/RTL8117", },
150 [RTL_GIGA_MAC_VER_60] = {"RTL8125A" },
151 [RTL_GIGA_MAC_VER_61] = {"RTL8125A", FIRMWARE_8125A_3},
152 /* reserve 62 for CFG_METHOD_4 in the vendor driver */
153 [RTL_GIGA_MAC_VER_63] = {"RTL8125B", FIRMWARE_8125B_2},
156 static const struct pci_device_id rtl8169_pci_tbl[] = {
157 { PCI_VDEVICE(REALTEK, 0x2502) },
158 { PCI_VDEVICE(REALTEK, 0x2600) },
159 { PCI_VDEVICE(REALTEK, 0x8129) },
160 { PCI_VDEVICE(REALTEK, 0x8136), RTL_CFG_NO_GBIT },
161 { PCI_VDEVICE(REALTEK, 0x8161) },
162 { PCI_VDEVICE(REALTEK, 0x8167) },
163 { PCI_VDEVICE(REALTEK, 0x8168) },
164 { PCI_VDEVICE(NCUBE, 0x8168) },
165 { PCI_VDEVICE(REALTEK, 0x8169) },
166 { PCI_VENDOR_ID_DLINK, 0x4300,
167 PCI_VENDOR_ID_DLINK, 0x4b10, 0, 0 },
168 { PCI_VDEVICE(DLINK, 0x4300) },
169 { PCI_VDEVICE(DLINK, 0x4302) },
170 { PCI_VDEVICE(AT, 0xc107) },
171 { PCI_VDEVICE(USR, 0x0116) },
172 { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0024 },
173 { 0x0001, 0x8168, PCI_ANY_ID, 0x2410 },
174 { PCI_VDEVICE(REALTEK, 0x8125) },
175 { PCI_VDEVICE(REALTEK, 0x3000) },
179 MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl);
182 MAC0 = 0, /* Ethernet hardware address. */
184 MAR0 = 8, /* Multicast filter. */
185 CounterAddrLow = 0x10,
186 CounterAddrHigh = 0x14,
187 TxDescStartAddrLow = 0x20,
188 TxDescStartAddrHigh = 0x24,
189 TxHDescStartAddrLow = 0x28,
190 TxHDescStartAddrHigh = 0x2c,
199 #define TXCFG_AUTO_FIFO (1 << 7) /* 8111e-vl */
200 #define TXCFG_EMPTY (1 << 11) /* 8111e-vl */
203 #define RX128_INT_EN (1 << 15) /* 8111c and later */
204 #define RX_MULTI_EN (1 << 14) /* 8111c only */
205 #define RXCFG_FIFO_SHIFT 13
206 /* No threshold before first PCI xfer */
207 #define RX_FIFO_THRESH (7 << RXCFG_FIFO_SHIFT)
208 #define RX_EARLY_OFF (1 << 11)
209 #define RXCFG_DMA_SHIFT 8
210 /* Unlimited maximum PCI burst. */
211 #define RX_DMA_BURST (7 << RXCFG_DMA_SHIFT)
217 #define PME_SIGNAL (1 << 5) /* 8168c and later */
228 #define RTL_COALESCE_TX_USECS GENMASK(15, 12)
229 #define RTL_COALESCE_TX_FRAMES GENMASK(11, 8)
230 #define RTL_COALESCE_RX_USECS GENMASK(7, 4)
231 #define RTL_COALESCE_RX_FRAMES GENMASK(3, 0)
233 #define RTL_COALESCE_T_MAX 0x0fU
234 #define RTL_COALESCE_FRAME_MAX (RTL_COALESCE_T_MAX * 4)
236 RxDescAddrLow = 0xe4,
237 RxDescAddrHigh = 0xe8,
238 EarlyTxThres = 0xec, /* 8169. Unit of 32 bytes. */
240 #define NoEarlyTx 0x3f /* Max value : no early transmit. */
242 MaxTxPacketSize = 0xec, /* 8101/8168. Unit of 128 bytes. */
244 #define TxPacketMax (8064 >> 7)
245 #define EarlySize 0x27
248 FuncEventMask = 0xf4,
249 FuncPresetState = 0xf8,
254 FuncForceEvent = 0xfc,
257 enum rtl8168_8101_registers {
260 #define CSIAR_FLAG 0x80000000
261 #define CSIAR_WRITE_CMD 0x80000000
262 #define CSIAR_BYTE_ENABLE 0x0000f000
263 #define CSIAR_ADDR_MASK 0x00000fff
265 #define D3COLD_NO_PLL_DOWN BIT(7)
266 #define D3HOT_NO_PLL_DOWN BIT(6)
267 #define D3_NO_PLL_DOWN (BIT(7) | BIT(6))
269 #define EPHYAR_FLAG 0x80000000
270 #define EPHYAR_WRITE_CMD 0x80000000
271 #define EPHYAR_REG_MASK 0x1f
272 #define EPHYAR_REG_SHIFT 16
273 #define EPHYAR_DATA_MASK 0xffff
275 #define PFM_EN (1 << 6)
276 #define TX_10M_PS_EN (1 << 7)
278 #define FIX_NAK_1 (1 << 4)
279 #define FIX_NAK_2 (1 << 3)
282 #define NOW_IS_OOB (1 << 7)
283 #define TX_EMPTY (1 << 5)
284 #define RX_EMPTY (1 << 4)
285 #define RXTX_EMPTY (TX_EMPTY | RX_EMPTY)
286 #define EN_NDP (1 << 3)
287 #define EN_OOB_RESET (1 << 2)
288 #define LINK_LIST_RDY (1 << 1)
290 #define EFUSEAR_FLAG 0x80000000
291 #define EFUSEAR_WRITE_CMD 0x80000000
292 #define EFUSEAR_READ_CMD 0x00000000
293 #define EFUSEAR_REG_MASK 0x03ff
294 #define EFUSEAR_REG_SHIFT 8
295 #define EFUSEAR_DATA_MASK 0xff
297 #define PFM_D3COLD_EN (1 << 6)
300 enum rtl8168_registers {
305 #define ERIAR_FLAG 0x80000000
306 #define ERIAR_WRITE_CMD 0x80000000
307 #define ERIAR_READ_CMD 0x00000000
308 #define ERIAR_ADDR_BYTE_ALIGN 4
309 #define ERIAR_TYPE_SHIFT 16
310 #define ERIAR_EXGMAC (0x00 << ERIAR_TYPE_SHIFT)
311 #define ERIAR_MSIX (0x01 << ERIAR_TYPE_SHIFT)
312 #define ERIAR_ASF (0x02 << ERIAR_TYPE_SHIFT)
313 #define ERIAR_OOB (0x02 << ERIAR_TYPE_SHIFT)
314 #define ERIAR_MASK_SHIFT 12
315 #define ERIAR_MASK_0001 (0x1 << ERIAR_MASK_SHIFT)
316 #define ERIAR_MASK_0011 (0x3 << ERIAR_MASK_SHIFT)
317 #define ERIAR_MASK_0100 (0x4 << ERIAR_MASK_SHIFT)
318 #define ERIAR_MASK_0101 (0x5 << ERIAR_MASK_SHIFT)
319 #define ERIAR_MASK_1111 (0xf << ERIAR_MASK_SHIFT)
320 EPHY_RXER_NUM = 0x7c,
321 OCPDR = 0xb0, /* OCP GPHY access */
322 #define OCPDR_WRITE_CMD 0x80000000
323 #define OCPDR_READ_CMD 0x00000000
324 #define OCPDR_REG_MASK 0x7f
325 #define OCPDR_GPHY_REG_SHIFT 16
326 #define OCPDR_DATA_MASK 0xffff
328 #define OCPAR_FLAG 0x80000000
329 #define OCPAR_GPHY_WRITE_CMD 0x8000f060
330 #define OCPAR_GPHY_READ_CMD 0x0000f060
332 RDSAR1 = 0xd0, /* 8168c only. Undocumented on 8168dp */
333 MISC = 0xf0, /* 8168e only. */
334 #define TXPLA_RST (1 << 29)
335 #define DISABLE_LAN_EN (1 << 23) /* Enable GPIO pin */
336 #define PWM_EN (1 << 22)
337 #define RXDV_GATED_EN (1 << 19)
338 #define EARLY_TALLY_EN (1 << 16)
341 enum rtl8125_registers {
342 IntrMask_8125 = 0x38,
343 IntrStatus_8125 = 0x3c,
346 EEE_TXIDLE_TIMER_8125 = 0x6048,
349 #define RX_VLAN_INNER_8125 BIT(22)
350 #define RX_VLAN_OUTER_8125 BIT(23)
351 #define RX_VLAN_8125 (RX_VLAN_INNER_8125 | RX_VLAN_OUTER_8125)
353 #define RX_FETCH_DFLT_8125 (8 << 27)
355 enum rtl_register_content {
356 /* InterruptStatusBits */
360 TxDescUnavail = 0x0080,
382 /* TXPoll register p.5 */
383 HPQ = 0x80, /* Poll cmd on the high prio queue */
384 NPQ = 0x40, /* Poll cmd on the low prio queue */
385 FSWInt = 0x01, /* Forced software interrupt */
389 Cfg9346_Unlock = 0xc0,
394 #define RX_CONFIG_ACCEPT_ERR_MASK 0x30
395 AcceptBroadcast = 0x08,
396 AcceptMulticast = 0x04,
398 AcceptAllPhys = 0x01,
399 #define RX_CONFIG_ACCEPT_OK_MASK 0x0f
400 #define RX_CONFIG_ACCEPT_MASK 0x3f
403 TxInterFrameGapShift = 24,
404 TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
406 /* Config1 register p.24 */
409 Speed_down = (1 << 4),
413 PMEnable = (1 << 0), /* Power Management Enable */
415 /* Config2 register p. 25 */
416 ClkReqEn = (1 << 7), /* Clock Request Enable */
417 MSIEnable = (1 << 5), /* 8169 only. Reserved in the 8168. */
418 PCI_Clock_66MHz = 0x01,
419 PCI_Clock_33MHz = 0x00,
421 /* Config3 register p.25 */
422 MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */
423 LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */
424 Jumbo_En0 = (1 << 2), /* 8168 only. Reserved in the 8168b */
425 Rdy_to_L23 = (1 << 1), /* L23 Enable */
426 Beacon_en = (1 << 0), /* 8168 only. Reserved in the 8168b */
428 /* Config4 register */
429 Jumbo_En1 = (1 << 1), /* 8168 only. Reserved in the 8168b */
431 /* Config5 register p.27 */
432 BWF = (1 << 6), /* Accept Broadcast wakeup frame */
433 MWF = (1 << 5), /* Accept Multicast wakeup frame */
434 UWF = (1 << 4), /* Accept Unicast wakeup frame */
436 LanWake = (1 << 1), /* LanWake enable/disable */
437 PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */
438 ASPM_en = (1 << 0), /* ASPM enable */
441 EnableBist = (1 << 15), // 8168 8101
442 Mac_dbgo_oe = (1 << 14), // 8168 8101
443 EnAnaPLL = (1 << 14), // 8169
444 Normal_mode = (1 << 13), // unused
445 Force_half_dup = (1 << 12), // 8168 8101
446 Force_rxflow_en = (1 << 11), // 8168 8101
447 Force_txflow_en = (1 << 10), // 8168 8101
448 Cxpl_dbg_sel = (1 << 9), // 8168 8101
449 ASF = (1 << 8), // 8168 8101
450 PktCntrDisable = (1 << 7), // 8168 8101
451 Mac_dbgo_sel = 0x001c, // 8168
456 #define INTT_MASK GENMASK(1, 0)
457 #define CPCMD_MASK (Normal_mode | RxVlan | RxChkSum | INTT_MASK)
459 /* rtl8169_PHYstatus */
469 /* ResetCounterCommand */
472 /* DumpCounterCommand */
475 /* magic enable v2 */
476 MagicPacket_v2 = (1 << 16), /* Wake up when receives a Magic Packet */
480 /* First doubleword. */
481 DescOwn = (1 << 31), /* Descriptor is owned by NIC */
482 RingEnd = (1 << 30), /* End of descriptor ring */
483 FirstFrag = (1 << 29), /* First segment of a packet */
484 LastFrag = (1 << 28), /* Final segment of a packet */
488 enum rtl_tx_desc_bit {
489 /* First doubleword. */
490 TD_LSO = (1 << 27), /* Large Send Offload */
491 #define TD_MSS_MAX 0x07ffu /* MSS value */
493 /* Second doubleword. */
494 TxVlanTag = (1 << 17), /* Add VLAN tag */
497 /* 8169, 8168b and 810x except 8102e. */
498 enum rtl_tx_desc_bit_0 {
499 /* First doubleword. */
500 #define TD0_MSS_SHIFT 16 /* MSS position (11 bits) */
501 TD0_TCP_CS = (1 << 16), /* Calculate TCP/IP checksum */
502 TD0_UDP_CS = (1 << 17), /* Calculate UDP/IP checksum */
503 TD0_IP_CS = (1 << 18), /* Calculate IP checksum */
506 /* 8102e, 8168c and beyond. */
507 enum rtl_tx_desc_bit_1 {
508 /* First doubleword. */
509 TD1_GTSENV4 = (1 << 26), /* Giant Send for IPv4 */
510 TD1_GTSENV6 = (1 << 25), /* Giant Send for IPv6 */
511 #define GTTCPHO_SHIFT 18
512 #define GTTCPHO_MAX 0x7f
514 /* Second doubleword. */
515 #define TCPHO_SHIFT 18
516 #define TCPHO_MAX 0x3ff
517 #define TD1_MSS_SHIFT 18 /* MSS position (11 bits) */
518 TD1_IPv6_CS = (1 << 28), /* Calculate IPv6 checksum */
519 TD1_IPv4_CS = (1 << 29), /* Calculate IPv4 checksum */
520 TD1_TCP_CS = (1 << 30), /* Calculate TCP/IP checksum */
521 TD1_UDP_CS = (1 << 31), /* Calculate UDP/IP checksum */
524 enum rtl_rx_desc_bit {
526 PID1 = (1 << 18), /* Protocol ID bit 1/2 */
527 PID0 = (1 << 17), /* Protocol ID bit 0/2 */
529 #define RxProtoUDP (PID1)
530 #define RxProtoTCP (PID0)
531 #define RxProtoIP (PID1 | PID0)
532 #define RxProtoMask RxProtoIP
534 IPFail = (1 << 16), /* IP checksum failed */
535 UDPFail = (1 << 15), /* UDP/IP checksum failed */
536 TCPFail = (1 << 14), /* TCP/IP checksum failed */
538 #define RxCSFailMask (IPFail | UDPFail | TCPFail)
540 RxVlanTag = (1 << 16), /* VLAN tag available */
543 #define RTL_GSO_MAX_SIZE_V1 32000
544 #define RTL_GSO_MAX_SEGS_V1 24
545 #define RTL_GSO_MAX_SIZE_V2 64000
546 #define RTL_GSO_MAX_SEGS_V2 64
565 struct rtl8169_counters {
572 __le32 tx_one_collision;
573 __le32 tx_multi_collision;
581 struct rtl8169_tc_offsets {
584 __le32 tx_multi_collision;
590 RTL_FLAG_TASK_ENABLED = 0,
591 RTL_FLAG_TASK_RESET_PENDING,
601 struct rtl8169_private {
602 void __iomem *mmio_addr; /* memory map physical address */
603 struct pci_dev *pci_dev;
604 struct net_device *dev;
605 struct phy_device *phydev;
606 struct napi_struct napi;
607 enum mac_version mac_version;
608 enum rtl_dash_type dash_type;
609 u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
610 u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
612 struct TxDesc *TxDescArray; /* 256-aligned Tx descriptor ring */
613 struct RxDesc *RxDescArray; /* 256-aligned Rx descriptor ring */
614 dma_addr_t TxPhyAddr;
615 dma_addr_t RxPhyAddr;
616 struct page *Rx_databuff[NUM_RX_DESC]; /* Rx data buffers */
617 struct ring_info tx_skb[NUM_TX_DESC]; /* Tx data buffers */
623 DECLARE_BITMAP(flags, RTL_FLAG_MAX);
624 struct work_struct work;
627 unsigned supports_gmii:1;
628 unsigned aspm_manageable:1;
629 dma_addr_t counters_phys_addr;
630 struct rtl8169_counters *counters;
631 struct rtl8169_tc_offsets tc_offset;
636 struct rtl_fw *rtl_fw;
641 typedef void (*rtl_generic_fct)(struct rtl8169_private *tp);
643 MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>");
644 MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver");
645 MODULE_SOFTDEP("pre: realtek");
646 MODULE_LICENSE("GPL");
647 MODULE_FIRMWARE(FIRMWARE_8168D_1);
648 MODULE_FIRMWARE(FIRMWARE_8168D_2);
649 MODULE_FIRMWARE(FIRMWARE_8168E_1);
650 MODULE_FIRMWARE(FIRMWARE_8168E_2);
651 MODULE_FIRMWARE(FIRMWARE_8168E_3);
652 MODULE_FIRMWARE(FIRMWARE_8105E_1);
653 MODULE_FIRMWARE(FIRMWARE_8168F_1);
654 MODULE_FIRMWARE(FIRMWARE_8168F_2);
655 MODULE_FIRMWARE(FIRMWARE_8402_1);
656 MODULE_FIRMWARE(FIRMWARE_8411_1);
657 MODULE_FIRMWARE(FIRMWARE_8411_2);
658 MODULE_FIRMWARE(FIRMWARE_8106E_1);
659 MODULE_FIRMWARE(FIRMWARE_8106E_2);
660 MODULE_FIRMWARE(FIRMWARE_8168G_2);
661 MODULE_FIRMWARE(FIRMWARE_8168G_3);
662 MODULE_FIRMWARE(FIRMWARE_8168H_1);
663 MODULE_FIRMWARE(FIRMWARE_8168H_2);
664 MODULE_FIRMWARE(FIRMWARE_8168FP_3);
665 MODULE_FIRMWARE(FIRMWARE_8107E_1);
666 MODULE_FIRMWARE(FIRMWARE_8107E_2);
667 MODULE_FIRMWARE(FIRMWARE_8125A_3);
668 MODULE_FIRMWARE(FIRMWARE_8125B_2);
670 static inline struct device *tp_to_dev(struct rtl8169_private *tp)
672 return &tp->pci_dev->dev;
675 static void rtl_lock_config_regs(struct rtl8169_private *tp)
677 RTL_W8(tp, Cfg9346, Cfg9346_Lock);
680 static void rtl_unlock_config_regs(struct rtl8169_private *tp)
682 RTL_W8(tp, Cfg9346, Cfg9346_Unlock);
685 static void rtl_pci_commit(struct rtl8169_private *tp)
687 /* Read an arbitrary register to commit a preceding PCI write */
691 static bool rtl_is_8125(struct rtl8169_private *tp)
693 return tp->mac_version >= RTL_GIGA_MAC_VER_60;
696 static bool rtl_is_8168evl_up(struct rtl8169_private *tp)
698 return tp->mac_version >= RTL_GIGA_MAC_VER_34 &&
699 tp->mac_version != RTL_GIGA_MAC_VER_39 &&
700 tp->mac_version <= RTL_GIGA_MAC_VER_53;
703 static bool rtl_supports_eee(struct rtl8169_private *tp)
705 return tp->mac_version >= RTL_GIGA_MAC_VER_34 &&
706 tp->mac_version != RTL_GIGA_MAC_VER_37 &&
707 tp->mac_version != RTL_GIGA_MAC_VER_39;
710 static void rtl_read_mac_from_reg(struct rtl8169_private *tp, u8 *mac, int reg)
714 for (i = 0; i < ETH_ALEN; i++)
715 mac[i] = RTL_R8(tp, reg + i);
719 bool (*check)(struct rtl8169_private *);
723 static bool rtl_loop_wait(struct rtl8169_private *tp, const struct rtl_cond *c,
724 unsigned long usecs, int n, bool high)
728 for (i = 0; i < n; i++) {
729 if (c->check(tp) == high)
735 netdev_err(tp->dev, "%s == %d (loop: %d, delay: %lu).\n",
736 c->msg, !high, n, usecs);
740 static bool rtl_loop_wait_high(struct rtl8169_private *tp,
741 const struct rtl_cond *c,
742 unsigned long d, int n)
744 return rtl_loop_wait(tp, c, d, n, true);
747 static bool rtl_loop_wait_low(struct rtl8169_private *tp,
748 const struct rtl_cond *c,
749 unsigned long d, int n)
751 return rtl_loop_wait(tp, c, d, n, false);
754 #define DECLARE_RTL_COND(name) \
755 static bool name ## _check(struct rtl8169_private *); \
757 static const struct rtl_cond name = { \
758 .check = name ## _check, \
762 static bool name ## _check(struct rtl8169_private *tp)
764 static void r8168fp_adjust_ocp_cmd(struct rtl8169_private *tp, u32 *cmd, int type)
766 /* based on RTL8168FP_OOBMAC_BASE in vendor driver */
767 if (type == ERIAR_OOB &&
768 (tp->mac_version == RTL_GIGA_MAC_VER_52 ||
769 tp->mac_version == RTL_GIGA_MAC_VER_53))
773 DECLARE_RTL_COND(rtl_eriar_cond)
775 return RTL_R32(tp, ERIAR) & ERIAR_FLAG;
778 static void _rtl_eri_write(struct rtl8169_private *tp, int addr, u32 mask,
781 u32 cmd = ERIAR_WRITE_CMD | type | mask | addr;
783 if (WARN(addr & 3 || !mask, "addr: 0x%x, mask: 0x%08x\n", addr, mask))
786 RTL_W32(tp, ERIDR, val);
787 r8168fp_adjust_ocp_cmd(tp, &cmd, type);
788 RTL_W32(tp, ERIAR, cmd);
790 rtl_loop_wait_low(tp, &rtl_eriar_cond, 100, 100);
793 static void rtl_eri_write(struct rtl8169_private *tp, int addr, u32 mask,
796 _rtl_eri_write(tp, addr, mask, val, ERIAR_EXGMAC);
799 static u32 _rtl_eri_read(struct rtl8169_private *tp, int addr, int type)
801 u32 cmd = ERIAR_READ_CMD | type | ERIAR_MASK_1111 | addr;
803 r8168fp_adjust_ocp_cmd(tp, &cmd, type);
804 RTL_W32(tp, ERIAR, cmd);
806 return rtl_loop_wait_high(tp, &rtl_eriar_cond, 100, 100) ?
807 RTL_R32(tp, ERIDR) : ~0;
810 static u32 rtl_eri_read(struct rtl8169_private *tp, int addr)
812 return _rtl_eri_read(tp, addr, ERIAR_EXGMAC);
815 static void rtl_w0w1_eri(struct rtl8169_private *tp, int addr, u32 p, u32 m)
817 u32 val = rtl_eri_read(tp, addr);
819 rtl_eri_write(tp, addr, ERIAR_MASK_1111, (val & ~m) | p);
822 static void rtl_eri_set_bits(struct rtl8169_private *tp, int addr, u32 p)
824 rtl_w0w1_eri(tp, addr, p, 0);
827 static void rtl_eri_clear_bits(struct rtl8169_private *tp, int addr, u32 m)
829 rtl_w0w1_eri(tp, addr, 0, m);
832 static bool rtl_ocp_reg_failure(u32 reg)
834 return WARN_ONCE(reg & 0xffff0001, "Invalid ocp reg %x!\n", reg);
837 DECLARE_RTL_COND(rtl_ocp_gphy_cond)
839 return RTL_R32(tp, GPHY_OCP) & OCPAR_FLAG;
842 static void r8168_phy_ocp_write(struct rtl8169_private *tp, u32 reg, u32 data)
844 if (rtl_ocp_reg_failure(reg))
847 RTL_W32(tp, GPHY_OCP, OCPAR_FLAG | (reg << 15) | data);
849 rtl_loop_wait_low(tp, &rtl_ocp_gphy_cond, 25, 10);
852 static int r8168_phy_ocp_read(struct rtl8169_private *tp, u32 reg)
854 if (rtl_ocp_reg_failure(reg))
857 RTL_W32(tp, GPHY_OCP, reg << 15);
859 return rtl_loop_wait_high(tp, &rtl_ocp_gphy_cond, 25, 10) ?
860 (RTL_R32(tp, GPHY_OCP) & 0xffff) : -ETIMEDOUT;
863 static void r8168_mac_ocp_write(struct rtl8169_private *tp, u32 reg, u32 data)
865 if (rtl_ocp_reg_failure(reg))
868 RTL_W32(tp, OCPDR, OCPAR_FLAG | (reg << 15) | data);
871 static u16 r8168_mac_ocp_read(struct rtl8169_private *tp, u32 reg)
873 if (rtl_ocp_reg_failure(reg))
876 RTL_W32(tp, OCPDR, reg << 15);
878 return RTL_R32(tp, OCPDR);
881 static void r8168_mac_ocp_modify(struct rtl8169_private *tp, u32 reg, u16 mask,
884 u16 data = r8168_mac_ocp_read(tp, reg);
886 r8168_mac_ocp_write(tp, reg, (data & ~mask) | set);
889 /* Work around a hw issue with RTL8168g PHY, the quirk disables
890 * PHY MCU interrupts before PHY power-down.
892 static void rtl8168g_phy_suspend_quirk(struct rtl8169_private *tp, int value)
894 switch (tp->mac_version) {
895 case RTL_GIGA_MAC_VER_40:
896 case RTL_GIGA_MAC_VER_41:
897 case RTL_GIGA_MAC_VER_49:
898 if (value & BMCR_RESET || !(value & BMCR_PDOWN))
899 rtl_eri_set_bits(tp, 0x1a8, 0xfc000000);
901 rtl_eri_clear_bits(tp, 0x1a8, 0xfc000000);
908 static void r8168g_mdio_write(struct rtl8169_private *tp, int reg, int value)
911 tp->ocp_base = value ? value << 4 : OCP_STD_PHY_BASE;
915 if (tp->ocp_base != OCP_STD_PHY_BASE)
918 if (tp->ocp_base == OCP_STD_PHY_BASE && reg == MII_BMCR)
919 rtl8168g_phy_suspend_quirk(tp, value);
921 r8168_phy_ocp_write(tp, tp->ocp_base + reg * 2, value);
924 static int r8168g_mdio_read(struct rtl8169_private *tp, int reg)
927 return tp->ocp_base == OCP_STD_PHY_BASE ? 0 : tp->ocp_base >> 4;
929 if (tp->ocp_base != OCP_STD_PHY_BASE)
932 return r8168_phy_ocp_read(tp, tp->ocp_base + reg * 2);
935 static void mac_mcu_write(struct rtl8169_private *tp, int reg, int value)
938 tp->ocp_base = value << 4;
942 r8168_mac_ocp_write(tp, tp->ocp_base + reg, value);
945 static int mac_mcu_read(struct rtl8169_private *tp, int reg)
947 return r8168_mac_ocp_read(tp, tp->ocp_base + reg);
950 DECLARE_RTL_COND(rtl_phyar_cond)
952 return RTL_R32(tp, PHYAR) & 0x80000000;
955 static void r8169_mdio_write(struct rtl8169_private *tp, int reg, int value)
957 RTL_W32(tp, PHYAR, 0x80000000 | (reg & 0x1f) << 16 | (value & 0xffff));
959 rtl_loop_wait_low(tp, &rtl_phyar_cond, 25, 20);
961 * According to hardware specs a 20us delay is required after write
962 * complete indication, but before sending next command.
967 static int r8169_mdio_read(struct rtl8169_private *tp, int reg)
971 RTL_W32(tp, PHYAR, 0x0 | (reg & 0x1f) << 16);
973 value = rtl_loop_wait_high(tp, &rtl_phyar_cond, 25, 20) ?
974 RTL_R32(tp, PHYAR) & 0xffff : -ETIMEDOUT;
977 * According to hardware specs a 20us delay is required after read
978 * complete indication, but before sending next command.
985 DECLARE_RTL_COND(rtl_ocpar_cond)
987 return RTL_R32(tp, OCPAR) & OCPAR_FLAG;
990 static void r8168dp_1_mdio_access(struct rtl8169_private *tp, int reg, u32 data)
992 RTL_W32(tp, OCPDR, data | ((reg & OCPDR_REG_MASK) << OCPDR_GPHY_REG_SHIFT));
993 RTL_W32(tp, OCPAR, OCPAR_GPHY_WRITE_CMD);
994 RTL_W32(tp, EPHY_RXER_NUM, 0);
996 rtl_loop_wait_low(tp, &rtl_ocpar_cond, 1000, 100);
999 static void r8168dp_1_mdio_write(struct rtl8169_private *tp, int reg, int value)
1001 r8168dp_1_mdio_access(tp, reg,
1002 OCPDR_WRITE_CMD | (value & OCPDR_DATA_MASK));
1005 static int r8168dp_1_mdio_read(struct rtl8169_private *tp, int reg)
1007 r8168dp_1_mdio_access(tp, reg, OCPDR_READ_CMD);
1010 RTL_W32(tp, OCPAR, OCPAR_GPHY_READ_CMD);
1011 RTL_W32(tp, EPHY_RXER_NUM, 0);
1013 return rtl_loop_wait_high(tp, &rtl_ocpar_cond, 1000, 100) ?
1014 RTL_R32(tp, OCPDR) & OCPDR_DATA_MASK : -ETIMEDOUT;
1017 #define R8168DP_1_MDIO_ACCESS_BIT 0x00020000
1019 static void r8168dp_2_mdio_start(struct rtl8169_private *tp)
1021 RTL_W32(tp, 0xd0, RTL_R32(tp, 0xd0) & ~R8168DP_1_MDIO_ACCESS_BIT);
1024 static void r8168dp_2_mdio_stop(struct rtl8169_private *tp)
1026 RTL_W32(tp, 0xd0, RTL_R32(tp, 0xd0) | R8168DP_1_MDIO_ACCESS_BIT);
1029 static void r8168dp_2_mdio_write(struct rtl8169_private *tp, int reg, int value)
1031 r8168dp_2_mdio_start(tp);
1033 r8169_mdio_write(tp, reg, value);
1035 r8168dp_2_mdio_stop(tp);
1038 static int r8168dp_2_mdio_read(struct rtl8169_private *tp, int reg)
1042 /* Work around issue with chip reporting wrong PHY ID */
1043 if (reg == MII_PHYSID2)
1046 r8168dp_2_mdio_start(tp);
1048 value = r8169_mdio_read(tp, reg);
1050 r8168dp_2_mdio_stop(tp);
1055 static void rtl_writephy(struct rtl8169_private *tp, int location, int val)
1057 switch (tp->mac_version) {
1058 case RTL_GIGA_MAC_VER_27:
1059 r8168dp_1_mdio_write(tp, location, val);
1061 case RTL_GIGA_MAC_VER_28:
1062 case RTL_GIGA_MAC_VER_31:
1063 r8168dp_2_mdio_write(tp, location, val);
1065 case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_63:
1066 r8168g_mdio_write(tp, location, val);
1069 r8169_mdio_write(tp, location, val);
1074 static int rtl_readphy(struct rtl8169_private *tp, int location)
1076 switch (tp->mac_version) {
1077 case RTL_GIGA_MAC_VER_27:
1078 return r8168dp_1_mdio_read(tp, location);
1079 case RTL_GIGA_MAC_VER_28:
1080 case RTL_GIGA_MAC_VER_31:
1081 return r8168dp_2_mdio_read(tp, location);
1082 case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_63:
1083 return r8168g_mdio_read(tp, location);
1085 return r8169_mdio_read(tp, location);
1089 DECLARE_RTL_COND(rtl_ephyar_cond)
1091 return RTL_R32(tp, EPHYAR) & EPHYAR_FLAG;
1094 static void rtl_ephy_write(struct rtl8169_private *tp, int reg_addr, int value)
1096 RTL_W32(tp, EPHYAR, EPHYAR_WRITE_CMD | (value & EPHYAR_DATA_MASK) |
1097 (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
1099 rtl_loop_wait_low(tp, &rtl_ephyar_cond, 10, 100);
1104 static u16 rtl_ephy_read(struct rtl8169_private *tp, int reg_addr)
1106 RTL_W32(tp, EPHYAR, (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
1108 return rtl_loop_wait_high(tp, &rtl_ephyar_cond, 10, 100) ?
1109 RTL_R32(tp, EPHYAR) & EPHYAR_DATA_MASK : ~0;
1112 static u32 r8168dp_ocp_read(struct rtl8169_private *tp, u16 reg)
1114 RTL_W32(tp, OCPAR, 0x0fu << 12 | (reg & 0x0fff));
1115 return rtl_loop_wait_high(tp, &rtl_ocpar_cond, 100, 20) ?
1116 RTL_R32(tp, OCPDR) : ~0;
1119 static u32 r8168ep_ocp_read(struct rtl8169_private *tp, u16 reg)
1121 return _rtl_eri_read(tp, reg, ERIAR_OOB);
1124 static void r8168dp_ocp_write(struct rtl8169_private *tp, u8 mask, u16 reg,
1127 RTL_W32(tp, OCPDR, data);
1128 RTL_W32(tp, OCPAR, OCPAR_FLAG | ((u32)mask & 0x0f) << 12 | (reg & 0x0fff));
1129 rtl_loop_wait_low(tp, &rtl_ocpar_cond, 100, 20);
1132 static void r8168ep_ocp_write(struct rtl8169_private *tp, u8 mask, u16 reg,
1135 _rtl_eri_write(tp, reg, ((u32)mask & 0x0f) << ERIAR_MASK_SHIFT,
1139 static void r8168dp_oob_notify(struct rtl8169_private *tp, u8 cmd)
1141 rtl_eri_write(tp, 0xe8, ERIAR_MASK_0001, cmd);
1143 r8168dp_ocp_write(tp, 0x1, 0x30, 0x00000001);
1146 #define OOB_CMD_RESET 0x00
1147 #define OOB_CMD_DRIVER_START 0x05
1148 #define OOB_CMD_DRIVER_STOP 0x06
1150 static u16 rtl8168_get_ocp_reg(struct rtl8169_private *tp)
1152 return (tp->mac_version == RTL_GIGA_MAC_VER_31) ? 0xb8 : 0x10;
1155 DECLARE_RTL_COND(rtl_dp_ocp_read_cond)
1159 reg = rtl8168_get_ocp_reg(tp);
1161 return r8168dp_ocp_read(tp, reg) & 0x00000800;
1164 DECLARE_RTL_COND(rtl_ep_ocp_read_cond)
1166 return r8168ep_ocp_read(tp, 0x124) & 0x00000001;
1169 DECLARE_RTL_COND(rtl_ocp_tx_cond)
1171 return RTL_R8(tp, IBISR0) & 0x20;
1174 static void rtl8168ep_stop_cmac(struct rtl8169_private *tp)
1176 RTL_W8(tp, IBCR2, RTL_R8(tp, IBCR2) & ~0x01);
1177 rtl_loop_wait_high(tp, &rtl_ocp_tx_cond, 50000, 2000);
1178 RTL_W8(tp, IBISR0, RTL_R8(tp, IBISR0) | 0x20);
1179 RTL_W8(tp, IBCR0, RTL_R8(tp, IBCR0) & ~0x01);
1182 static void rtl8168dp_driver_start(struct rtl8169_private *tp)
1184 r8168dp_oob_notify(tp, OOB_CMD_DRIVER_START);
1185 rtl_loop_wait_high(tp, &rtl_dp_ocp_read_cond, 10000, 10);
1188 static void rtl8168ep_driver_start(struct rtl8169_private *tp)
1190 r8168ep_ocp_write(tp, 0x01, 0x180, OOB_CMD_DRIVER_START);
1191 r8168ep_ocp_write(tp, 0x01, 0x30, r8168ep_ocp_read(tp, 0x30) | 0x01);
1192 rtl_loop_wait_high(tp, &rtl_ep_ocp_read_cond, 10000, 10);
1195 static void rtl8168_driver_start(struct rtl8169_private *tp)
1197 if (tp->dash_type == RTL_DASH_DP)
1198 rtl8168dp_driver_start(tp);
1200 rtl8168ep_driver_start(tp);
1203 static void rtl8168dp_driver_stop(struct rtl8169_private *tp)
1205 r8168dp_oob_notify(tp, OOB_CMD_DRIVER_STOP);
1206 rtl_loop_wait_low(tp, &rtl_dp_ocp_read_cond, 10000, 10);
1209 static void rtl8168ep_driver_stop(struct rtl8169_private *tp)
1211 rtl8168ep_stop_cmac(tp);
1212 r8168ep_ocp_write(tp, 0x01, 0x180, OOB_CMD_DRIVER_STOP);
1213 r8168ep_ocp_write(tp, 0x01, 0x30, r8168ep_ocp_read(tp, 0x30) | 0x01);
1214 rtl_loop_wait_low(tp, &rtl_ep_ocp_read_cond, 10000, 10);
1217 static void rtl8168_driver_stop(struct rtl8169_private *tp)
1219 if (tp->dash_type == RTL_DASH_DP)
1220 rtl8168dp_driver_stop(tp);
1222 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) & BIT(15);
1232 static bool r8168ep_check_dash(struct rtl8169_private *tp)
1234 return r8168ep_ocp_read(tp, 0x128) & BIT(0);
1237 static enum rtl_dash_type rtl_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) ? RTL_DASH_DP : RTL_DASH_NONE;
1244 case RTL_GIGA_MAC_VER_49 ... RTL_GIGA_MAC_VER_53:
1245 return r8168ep_check_dash(tp) ? RTL_DASH_EP : RTL_DASH_NONE;
1247 return RTL_DASH_NONE;
1251 static void rtl_set_d3_pll_down(struct rtl8169_private *tp, bool enable)
1253 switch (tp->mac_version) {
1254 case RTL_GIGA_MAC_VER_25 ... RTL_GIGA_MAC_VER_26:
1255 case RTL_GIGA_MAC_VER_29 ... RTL_GIGA_MAC_VER_30:
1256 case RTL_GIGA_MAC_VER_32 ... RTL_GIGA_MAC_VER_37:
1257 case RTL_GIGA_MAC_VER_39 ... RTL_GIGA_MAC_VER_63:
1259 RTL_W8(tp, PMCH, RTL_R8(tp, PMCH) & ~D3_NO_PLL_DOWN);
1261 RTL_W8(tp, PMCH, RTL_R8(tp, PMCH) | D3_NO_PLL_DOWN);
1268 static void rtl_reset_packet_filter(struct rtl8169_private *tp)
1270 rtl_eri_clear_bits(tp, 0xdc, BIT(0));
1271 rtl_eri_set_bits(tp, 0xdc, BIT(0));
1274 DECLARE_RTL_COND(rtl_efusear_cond)
1276 return RTL_R32(tp, EFUSEAR) & EFUSEAR_FLAG;
1279 u8 rtl8168d_efuse_read(struct rtl8169_private *tp, int reg_addr)
1281 RTL_W32(tp, EFUSEAR, (reg_addr & EFUSEAR_REG_MASK) << EFUSEAR_REG_SHIFT);
1283 return rtl_loop_wait_high(tp, &rtl_efusear_cond, 100, 300) ?
1284 RTL_R32(tp, EFUSEAR) & EFUSEAR_DATA_MASK : ~0;
1287 static u32 rtl_get_events(struct rtl8169_private *tp)
1289 if (rtl_is_8125(tp))
1290 return RTL_R32(tp, IntrStatus_8125);
1292 return RTL_R16(tp, IntrStatus);
1295 static void rtl_ack_events(struct rtl8169_private *tp, u32 bits)
1297 if (rtl_is_8125(tp))
1298 RTL_W32(tp, IntrStatus_8125, bits);
1300 RTL_W16(tp, IntrStatus, bits);
1303 static void rtl_irq_disable(struct rtl8169_private *tp)
1305 if (rtl_is_8125(tp))
1306 RTL_W32(tp, IntrMask_8125, 0);
1308 RTL_W16(tp, IntrMask, 0);
1311 static void rtl_irq_enable(struct rtl8169_private *tp)
1313 if (rtl_is_8125(tp))
1314 RTL_W32(tp, IntrMask_8125, tp->irq_mask);
1316 RTL_W16(tp, IntrMask, tp->irq_mask);
1319 static void rtl8169_irq_mask_and_ack(struct rtl8169_private *tp)
1321 rtl_irq_disable(tp);
1322 rtl_ack_events(tp, 0xffffffff);
1326 static void rtl_link_chg_patch(struct rtl8169_private *tp)
1328 struct phy_device *phydev = tp->phydev;
1330 if (tp->mac_version == RTL_GIGA_MAC_VER_34 ||
1331 tp->mac_version == RTL_GIGA_MAC_VER_38) {
1332 if (phydev->speed == SPEED_1000) {
1333 rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x00000011);
1334 rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x00000005);
1335 } else if (phydev->speed == SPEED_100) {
1336 rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x0000001f);
1337 rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x00000005);
1339 rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x0000001f);
1340 rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x0000003f);
1342 rtl_reset_packet_filter(tp);
1343 } else if (tp->mac_version == RTL_GIGA_MAC_VER_35 ||
1344 tp->mac_version == RTL_GIGA_MAC_VER_36) {
1345 if (phydev->speed == SPEED_1000) {
1346 rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x00000011);
1347 rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x00000005);
1349 rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x0000001f);
1350 rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x0000003f);
1352 } else if (tp->mac_version == RTL_GIGA_MAC_VER_37) {
1353 if (phydev->speed == SPEED_10) {
1354 rtl_eri_write(tp, 0x1d0, ERIAR_MASK_0011, 0x4d02);
1355 rtl_eri_write(tp, 0x1dc, ERIAR_MASK_0011, 0x0060a);
1357 rtl_eri_write(tp, 0x1d0, ERIAR_MASK_0011, 0x0000);
1362 #define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
1364 static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
1366 struct rtl8169_private *tp = netdev_priv(dev);
1368 wol->supported = WAKE_ANY;
1369 wol->wolopts = tp->saved_wolopts;
1372 static void __rtl8169_set_wol(struct rtl8169_private *tp, u32 wolopts)
1374 static const struct {
1379 { WAKE_PHY, Config3, LinkUp },
1380 { WAKE_UCAST, Config5, UWF },
1381 { WAKE_BCAST, Config5, BWF },
1382 { WAKE_MCAST, Config5, MWF },
1383 { WAKE_ANY, Config5, LanWake },
1384 { WAKE_MAGIC, Config3, MagicPacket }
1386 unsigned int i, tmp = ARRAY_SIZE(cfg);
1389 rtl_unlock_config_regs(tp);
1391 if (rtl_is_8168evl_up(tp)) {
1393 if (wolopts & WAKE_MAGIC)
1394 rtl_eri_set_bits(tp, 0x0dc, MagicPacket_v2);
1396 rtl_eri_clear_bits(tp, 0x0dc, MagicPacket_v2);
1397 } else if (rtl_is_8125(tp)) {
1399 if (wolopts & WAKE_MAGIC)
1400 r8168_mac_ocp_modify(tp, 0xc0b6, 0, BIT(0));
1402 r8168_mac_ocp_modify(tp, 0xc0b6, BIT(0), 0);
1405 for (i = 0; i < tmp; i++) {
1406 options = RTL_R8(tp, cfg[i].reg) & ~cfg[i].mask;
1407 if (wolopts & cfg[i].opt)
1408 options |= cfg[i].mask;
1409 RTL_W8(tp, cfg[i].reg, options);
1412 switch (tp->mac_version) {
1413 case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
1414 options = RTL_R8(tp, Config1) & ~PMEnable;
1416 options |= PMEnable;
1417 RTL_W8(tp, Config1, options);
1419 case RTL_GIGA_MAC_VER_34:
1420 case RTL_GIGA_MAC_VER_37:
1421 case RTL_GIGA_MAC_VER_39 ... RTL_GIGA_MAC_VER_63:
1422 options = RTL_R8(tp, Config2) & ~PME_SIGNAL;
1424 options |= PME_SIGNAL;
1425 RTL_W8(tp, Config2, options);
1431 rtl_lock_config_regs(tp);
1433 device_set_wakeup_enable(tp_to_dev(tp), wolopts);
1434 rtl_set_d3_pll_down(tp, !wolopts);
1435 tp->dev->wol_enabled = wolopts ? 1 : 0;
1438 static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
1440 struct rtl8169_private *tp = netdev_priv(dev);
1442 if (wol->wolopts & ~WAKE_ANY)
1445 tp->saved_wolopts = wol->wolopts;
1446 __rtl8169_set_wol(tp, tp->saved_wolopts);
1451 static void rtl8169_get_drvinfo(struct net_device *dev,
1452 struct ethtool_drvinfo *info)
1454 struct rtl8169_private *tp = netdev_priv(dev);
1455 struct rtl_fw *rtl_fw = tp->rtl_fw;
1457 strlcpy(info->driver, MODULENAME, sizeof(info->driver));
1458 strlcpy(info->bus_info, pci_name(tp->pci_dev), sizeof(info->bus_info));
1459 BUILD_BUG_ON(sizeof(info->fw_version) < sizeof(rtl_fw->version));
1461 strlcpy(info->fw_version, rtl_fw->version,
1462 sizeof(info->fw_version));
1465 static int rtl8169_get_regs_len(struct net_device *dev)
1467 return R8169_REGS_SIZE;
1470 static netdev_features_t rtl8169_fix_features(struct net_device *dev,
1471 netdev_features_t features)
1473 struct rtl8169_private *tp = netdev_priv(dev);
1475 if (dev->mtu > TD_MSS_MAX)
1476 features &= ~NETIF_F_ALL_TSO;
1478 if (dev->mtu > ETH_DATA_LEN &&
1479 tp->mac_version > RTL_GIGA_MAC_VER_06)
1480 features &= ~(NETIF_F_CSUM_MASK | NETIF_F_ALL_TSO);
1485 static void rtl_set_rx_config_features(struct rtl8169_private *tp,
1486 netdev_features_t features)
1488 u32 rx_config = RTL_R32(tp, RxConfig);
1490 if (features & NETIF_F_RXALL)
1491 rx_config |= RX_CONFIG_ACCEPT_ERR_MASK;
1493 rx_config &= ~RX_CONFIG_ACCEPT_ERR_MASK;
1495 if (rtl_is_8125(tp)) {
1496 if (features & NETIF_F_HW_VLAN_CTAG_RX)
1497 rx_config |= RX_VLAN_8125;
1499 rx_config &= ~RX_VLAN_8125;
1502 RTL_W32(tp, RxConfig, rx_config);
1505 static int rtl8169_set_features(struct net_device *dev,
1506 netdev_features_t features)
1508 struct rtl8169_private *tp = netdev_priv(dev);
1510 rtl_set_rx_config_features(tp, features);
1512 if (features & NETIF_F_RXCSUM)
1513 tp->cp_cmd |= RxChkSum;
1515 tp->cp_cmd &= ~RxChkSum;
1517 if (!rtl_is_8125(tp)) {
1518 if (features & NETIF_F_HW_VLAN_CTAG_RX)
1519 tp->cp_cmd |= RxVlan;
1521 tp->cp_cmd &= ~RxVlan;
1524 RTL_W16(tp, CPlusCmd, tp->cp_cmd);
1530 static inline u32 rtl8169_tx_vlan_tag(struct sk_buff *skb)
1532 return (skb_vlan_tag_present(skb)) ?
1533 TxVlanTag | swab16(skb_vlan_tag_get(skb)) : 0x00;
1536 static void rtl8169_rx_vlan_tag(struct RxDesc *desc, struct sk_buff *skb)
1538 u32 opts2 = le32_to_cpu(desc->opts2);
1540 if (opts2 & RxVlanTag)
1541 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), swab16(opts2 & 0xffff));
1544 static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs,
1547 struct rtl8169_private *tp = netdev_priv(dev);
1548 u32 __iomem *data = tp->mmio_addr;
1552 for (i = 0; i < R8169_REGS_SIZE; i += 4)
1553 memcpy_fromio(dw++, data++, 4);
1556 static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = {
1563 "tx_single_collisions",
1564 "tx_multi_collisions",
1572 static int rtl8169_get_sset_count(struct net_device *dev, int sset)
1576 return ARRAY_SIZE(rtl8169_gstrings);
1582 DECLARE_RTL_COND(rtl_counters_cond)
1584 return RTL_R32(tp, CounterAddrLow) & (CounterReset | CounterDump);
1587 static void rtl8169_do_counters(struct rtl8169_private *tp, u32 counter_cmd)
1589 u32 cmd = lower_32_bits(tp->counters_phys_addr);
1591 RTL_W32(tp, CounterAddrHigh, upper_32_bits(tp->counters_phys_addr));
1593 RTL_W32(tp, CounterAddrLow, cmd);
1594 RTL_W32(tp, CounterAddrLow, cmd | counter_cmd);
1596 rtl_loop_wait_low(tp, &rtl_counters_cond, 10, 1000);
1599 static void rtl8169_update_counters(struct rtl8169_private *tp)
1601 u8 val = RTL_R8(tp, ChipCmd);
1604 * Some chips are unable to dump tally counters when the receiver
1605 * is disabled. If 0xff chip may be in a PCI power-save state.
1607 if (val & CmdRxEnb && val != 0xff)
1608 rtl8169_do_counters(tp, CounterDump);
1611 static void rtl8169_init_counter_offsets(struct rtl8169_private *tp)
1613 struct rtl8169_counters *counters = tp->counters;
1616 * rtl8169_init_counter_offsets is called from rtl_open. On chip
1617 * versions prior to RTL_GIGA_MAC_VER_19 the tally counters are only
1618 * reset by a power cycle, while the counter values collected by the
1619 * driver are reset at every driver unload/load cycle.
1621 * To make sure the HW values returned by @get_stats64 match the SW
1622 * values, we collect the initial values at first open(*) and use them
1623 * as offsets to normalize the values returned by @get_stats64.
1625 * (*) We can't call rtl8169_init_counter_offsets from rtl_init_one
1626 * for the reason stated in rtl8169_update_counters; CmdRxEnb is only
1627 * set at open time by rtl_hw_start.
1630 if (tp->tc_offset.inited)
1633 if (tp->mac_version >= RTL_GIGA_MAC_VER_19) {
1634 rtl8169_do_counters(tp, CounterReset);
1636 rtl8169_update_counters(tp);
1637 tp->tc_offset.tx_errors = counters->tx_errors;
1638 tp->tc_offset.tx_multi_collision = counters->tx_multi_collision;
1639 tp->tc_offset.tx_aborted = counters->tx_aborted;
1640 tp->tc_offset.rx_missed = counters->rx_missed;
1643 tp->tc_offset.inited = true;
1646 static void rtl8169_get_ethtool_stats(struct net_device *dev,
1647 struct ethtool_stats *stats, u64 *data)
1649 struct rtl8169_private *tp = netdev_priv(dev);
1650 struct rtl8169_counters *counters;
1652 counters = tp->counters;
1653 rtl8169_update_counters(tp);
1655 data[0] = le64_to_cpu(counters->tx_packets);
1656 data[1] = le64_to_cpu(counters->rx_packets);
1657 data[2] = le64_to_cpu(counters->tx_errors);
1658 data[3] = le32_to_cpu(counters->rx_errors);
1659 data[4] = le16_to_cpu(counters->rx_missed);
1660 data[5] = le16_to_cpu(counters->align_errors);
1661 data[6] = le32_to_cpu(counters->tx_one_collision);
1662 data[7] = le32_to_cpu(counters->tx_multi_collision);
1663 data[8] = le64_to_cpu(counters->rx_unicast);
1664 data[9] = le64_to_cpu(counters->rx_broadcast);
1665 data[10] = le32_to_cpu(counters->rx_multicast);
1666 data[11] = le16_to_cpu(counters->tx_aborted);
1667 data[12] = le16_to_cpu(counters->tx_underun);
1670 static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data)
1674 memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings));
1680 * Interrupt coalescing
1682 * > 1 - the availability of the IntrMitigate (0xe2) register through the
1683 * > 8169, 8168 and 810x line of chipsets
1685 * 8169, 8168, and 8136(810x) serial chipsets support it.
1687 * > 2 - the Tx timer unit at gigabit speed
1689 * The unit of the timer depends on both the speed and the setting of CPlusCmd
1690 * (0xe0) bit 1 and bit 0.
1693 * bit[1:0] \ speed 1000M 100M 10M
1694 * 0 0 320ns 2.56us 40.96us
1695 * 0 1 2.56us 20.48us 327.7us
1696 * 1 0 5.12us 40.96us 655.4us
1697 * 1 1 10.24us 81.92us 1.31ms
1700 * bit[1:0] \ speed 1000M 100M 10M
1701 * 0 0 5us 2.56us 40.96us
1702 * 0 1 40us 20.48us 327.7us
1703 * 1 0 80us 40.96us 655.4us
1704 * 1 1 160us 81.92us 1.31ms
1707 /* rx/tx scale factors for all CPlusCmd[0:1] cases */
1708 struct rtl_coalesce_info {
1713 /* produce array with base delay *1, *8, *8*2, *8*2*2 */
1714 #define COALESCE_DELAY(d) { (d), 8 * (d), 16 * (d), 32 * (d) }
1716 static const struct rtl_coalesce_info rtl_coalesce_info_8169[] = {
1717 { SPEED_1000, COALESCE_DELAY(320) },
1718 { SPEED_100, COALESCE_DELAY(2560) },
1719 { SPEED_10, COALESCE_DELAY(40960) },
1723 static const struct rtl_coalesce_info rtl_coalesce_info_8168_8136[] = {
1724 { SPEED_1000, COALESCE_DELAY(5000) },
1725 { SPEED_100, COALESCE_DELAY(2560) },
1726 { SPEED_10, COALESCE_DELAY(40960) },
1729 #undef COALESCE_DELAY
1731 /* get rx/tx scale vector corresponding to current speed */
1732 static const struct rtl_coalesce_info *
1733 rtl_coalesce_info(struct rtl8169_private *tp)
1735 const struct rtl_coalesce_info *ci;
1737 if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
1738 ci = rtl_coalesce_info_8169;
1740 ci = rtl_coalesce_info_8168_8136;
1742 /* if speed is unknown assume highest one */
1743 if (tp->phydev->speed == SPEED_UNKNOWN)
1746 for (; ci->speed; ci++) {
1747 if (tp->phydev->speed == ci->speed)
1751 return ERR_PTR(-ELNRNG);
1754 static int rtl_get_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
1756 struct rtl8169_private *tp = netdev_priv(dev);
1757 const struct rtl_coalesce_info *ci;
1758 u32 scale, c_us, c_fr;
1761 if (rtl_is_8125(tp))
1764 memset(ec, 0, sizeof(*ec));
1766 /* get rx/tx scale corresponding to current speed and CPlusCmd[0:1] */
1767 ci = rtl_coalesce_info(tp);
1771 scale = ci->scale_nsecs[tp->cp_cmd & INTT_MASK];
1773 intrmit = RTL_R16(tp, IntrMitigate);
1775 c_us = FIELD_GET(RTL_COALESCE_TX_USECS, intrmit);
1776 ec->tx_coalesce_usecs = DIV_ROUND_UP(c_us * scale, 1000);
1778 c_fr = FIELD_GET(RTL_COALESCE_TX_FRAMES, intrmit);
1779 /* ethtool_coalesce states usecs and max_frames must not both be 0 */
1780 ec->tx_max_coalesced_frames = (c_us || c_fr) ? c_fr * 4 : 1;
1782 c_us = FIELD_GET(RTL_COALESCE_RX_USECS, intrmit);
1783 ec->rx_coalesce_usecs = DIV_ROUND_UP(c_us * scale, 1000);
1785 c_fr = FIELD_GET(RTL_COALESCE_RX_FRAMES, intrmit);
1786 ec->rx_max_coalesced_frames = (c_us || c_fr) ? c_fr * 4 : 1;
1791 /* choose appropriate scale factor and CPlusCmd[0:1] for (speed, usec) */
1792 static int rtl_coalesce_choose_scale(struct rtl8169_private *tp, u32 usec,
1795 const struct rtl_coalesce_info *ci;
1798 ci = rtl_coalesce_info(tp);
1802 for (i = 0; i < 4; i++) {
1803 if (usec <= ci->scale_nsecs[i] * RTL_COALESCE_T_MAX / 1000U) {
1805 return ci->scale_nsecs[i];
1812 static int rtl_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
1814 struct rtl8169_private *tp = netdev_priv(dev);
1815 u32 tx_fr = ec->tx_max_coalesced_frames;
1816 u32 rx_fr = ec->rx_max_coalesced_frames;
1817 u32 coal_usec_max, units;
1818 u16 w = 0, cp01 = 0;
1821 if (rtl_is_8125(tp))
1824 if (rx_fr > RTL_COALESCE_FRAME_MAX || tx_fr > RTL_COALESCE_FRAME_MAX)
1827 coal_usec_max = max(ec->rx_coalesce_usecs, ec->tx_coalesce_usecs);
1828 scale = rtl_coalesce_choose_scale(tp, coal_usec_max, &cp01);
1832 /* Accept max_frames=1 we returned in rtl_get_coalesce. Accept it
1833 * not only when usecs=0 because of e.g. the following scenario:
1835 * - both rx_usecs=0 & rx_frames=0 in hardware (no delay on RX)
1836 * - rtl_get_coalesce returns rx_usecs=0, rx_frames=1
1837 * - then user does `ethtool -C eth0 rx-usecs 100`
1839 * Since ethtool sends to kernel whole ethtool_coalesce settings,
1840 * if we want to ignore rx_frames then it has to be set to 0.
1847 /* HW requires time limit to be set if frame limit is set */
1848 if ((tx_fr && !ec->tx_coalesce_usecs) ||
1849 (rx_fr && !ec->rx_coalesce_usecs))
1852 w |= FIELD_PREP(RTL_COALESCE_TX_FRAMES, DIV_ROUND_UP(tx_fr, 4));
1853 w |= FIELD_PREP(RTL_COALESCE_RX_FRAMES, DIV_ROUND_UP(rx_fr, 4));
1855 units = DIV_ROUND_UP(ec->tx_coalesce_usecs * 1000U, scale);
1856 w |= FIELD_PREP(RTL_COALESCE_TX_USECS, units);
1857 units = DIV_ROUND_UP(ec->rx_coalesce_usecs * 1000U, scale);
1858 w |= FIELD_PREP(RTL_COALESCE_RX_USECS, units);
1860 RTL_W16(tp, IntrMitigate, w);
1862 /* Meaning of PktCntrDisable bit changed from RTL8168e-vl */
1863 if (rtl_is_8168evl_up(tp)) {
1864 if (!rx_fr && !tx_fr)
1865 /* disable packet counter */
1866 tp->cp_cmd |= PktCntrDisable;
1868 tp->cp_cmd &= ~PktCntrDisable;
1871 tp->cp_cmd = (tp->cp_cmd & ~INTT_MASK) | cp01;
1872 RTL_W16(tp, CPlusCmd, tp->cp_cmd);
1878 static int rtl8169_get_eee(struct net_device *dev, struct ethtool_eee *data)
1880 struct rtl8169_private *tp = netdev_priv(dev);
1882 if (!rtl_supports_eee(tp))
1885 return phy_ethtool_get_eee(tp->phydev, data);
1888 static int rtl8169_set_eee(struct net_device *dev, struct ethtool_eee *data)
1890 struct rtl8169_private *tp = netdev_priv(dev);
1893 if (!rtl_supports_eee(tp))
1896 ret = phy_ethtool_set_eee(tp->phydev, data);
1899 tp->eee_adv = phy_read_mmd(dev->phydev, MDIO_MMD_AN,
1904 static void rtl8169_get_ringparam(struct net_device *dev,
1905 struct ethtool_ringparam *data)
1907 data->rx_max_pending = NUM_RX_DESC;
1908 data->rx_pending = NUM_RX_DESC;
1909 data->tx_max_pending = NUM_TX_DESC;
1910 data->tx_pending = NUM_TX_DESC;
1913 static const struct ethtool_ops rtl8169_ethtool_ops = {
1914 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
1915 ETHTOOL_COALESCE_MAX_FRAMES,
1916 .get_drvinfo = rtl8169_get_drvinfo,
1917 .get_regs_len = rtl8169_get_regs_len,
1918 .get_link = ethtool_op_get_link,
1919 .get_coalesce = rtl_get_coalesce,
1920 .set_coalesce = rtl_set_coalesce,
1921 .get_regs = rtl8169_get_regs,
1922 .get_wol = rtl8169_get_wol,
1923 .set_wol = rtl8169_set_wol,
1924 .get_strings = rtl8169_get_strings,
1925 .get_sset_count = rtl8169_get_sset_count,
1926 .get_ethtool_stats = rtl8169_get_ethtool_stats,
1927 .get_ts_info = ethtool_op_get_ts_info,
1928 .nway_reset = phy_ethtool_nway_reset,
1929 .get_eee = rtl8169_get_eee,
1930 .set_eee = rtl8169_set_eee,
1931 .get_link_ksettings = phy_ethtool_get_link_ksettings,
1932 .set_link_ksettings = phy_ethtool_set_link_ksettings,
1933 .get_ringparam = rtl8169_get_ringparam,
1936 static void rtl_enable_eee(struct rtl8169_private *tp)
1938 struct phy_device *phydev = tp->phydev;
1941 /* respect EEE advertisement the user may have set */
1942 if (tp->eee_adv >= 0)
1945 adv = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE);
1948 phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV, adv);
1951 static enum mac_version rtl8169_get_mac_version(u16 xid, bool gmii)
1954 * The driver currently handles the 8168Bf and the 8168Be identically
1955 * but they can be identified more specifically through the test below
1958 * (RTL_R32(tp, TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be
1960 * Same thing for the 8101Eb and the 8101Ec:
1962 * (RTL_R32(tp, TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec
1964 static const struct rtl_mac_info {
1967 enum mac_version ver;
1970 { 0x7cf, 0x641, RTL_GIGA_MAC_VER_63 },
1973 { 0x7cf, 0x608, RTL_GIGA_MAC_VER_60 },
1974 { 0x7c8, 0x608, RTL_GIGA_MAC_VER_61 },
1977 { 0x7cf, 0x54b, RTL_GIGA_MAC_VER_53 },
1978 { 0x7cf, 0x54a, RTL_GIGA_MAC_VER_52 },
1980 /* 8168EP family. */
1981 { 0x7cf, 0x502, RTL_GIGA_MAC_VER_51 },
1982 { 0x7cf, 0x501, RTL_GIGA_MAC_VER_50 },
1983 { 0x7cf, 0x500, RTL_GIGA_MAC_VER_49 },
1986 { 0x7cf, 0x541, RTL_GIGA_MAC_VER_46 },
1987 { 0x7cf, 0x540, RTL_GIGA_MAC_VER_45 },
1990 { 0x7cf, 0x5c8, RTL_GIGA_MAC_VER_44 },
1991 { 0x7cf, 0x509, RTL_GIGA_MAC_VER_42 },
1992 { 0x7cf, 0x4c1, RTL_GIGA_MAC_VER_41 },
1993 { 0x7cf, 0x4c0, RTL_GIGA_MAC_VER_40 },
1996 { 0x7c8, 0x488, RTL_GIGA_MAC_VER_38 },
1997 { 0x7cf, 0x481, RTL_GIGA_MAC_VER_36 },
1998 { 0x7cf, 0x480, RTL_GIGA_MAC_VER_35 },
2001 { 0x7c8, 0x2c8, RTL_GIGA_MAC_VER_34 },
2002 { 0x7cf, 0x2c1, RTL_GIGA_MAC_VER_32 },
2003 { 0x7c8, 0x2c0, RTL_GIGA_MAC_VER_33 },
2006 { 0x7cf, 0x281, RTL_GIGA_MAC_VER_25 },
2007 { 0x7c8, 0x280, RTL_GIGA_MAC_VER_26 },
2009 /* 8168DP family. */
2010 /* It seems this early RTL8168dp version never made it to
2011 * the wild. Let's see whether somebody complains, if not
2012 * we'll remove support for this chip version completely.
2013 * { 0x7cf, 0x288, RTL_GIGA_MAC_VER_27 },
2015 { 0x7cf, 0x28a, RTL_GIGA_MAC_VER_28 },
2016 { 0x7cf, 0x28b, RTL_GIGA_MAC_VER_31 },
2019 { 0x7cf, 0x3c9, RTL_GIGA_MAC_VER_23 },
2020 { 0x7cf, 0x3c8, RTL_GIGA_MAC_VER_18 },
2021 { 0x7c8, 0x3c8, RTL_GIGA_MAC_VER_24 },
2022 { 0x7cf, 0x3c0, RTL_GIGA_MAC_VER_19 },
2023 { 0x7cf, 0x3c2, RTL_GIGA_MAC_VER_20 },
2024 { 0x7cf, 0x3c3, RTL_GIGA_MAC_VER_21 },
2025 { 0x7c8, 0x3c0, RTL_GIGA_MAC_VER_22 },
2028 { 0x7cf, 0x380, RTL_GIGA_MAC_VER_12 },
2029 { 0x7c8, 0x380, RTL_GIGA_MAC_VER_17 },
2030 { 0x7c8, 0x300, RTL_GIGA_MAC_VER_11 },
2033 { 0x7c8, 0x448, RTL_GIGA_MAC_VER_39 },
2034 { 0x7c8, 0x440, RTL_GIGA_MAC_VER_37 },
2035 { 0x7cf, 0x409, RTL_GIGA_MAC_VER_29 },
2036 { 0x7c8, 0x408, RTL_GIGA_MAC_VER_30 },
2037 { 0x7cf, 0x349, RTL_GIGA_MAC_VER_08 },
2038 { 0x7cf, 0x249, RTL_GIGA_MAC_VER_08 },
2039 { 0x7cf, 0x348, RTL_GIGA_MAC_VER_07 },
2040 { 0x7cf, 0x248, RTL_GIGA_MAC_VER_07 },
2041 { 0x7cf, 0x340, RTL_GIGA_MAC_VER_13 },
2042 { 0x7cf, 0x240, RTL_GIGA_MAC_VER_14 },
2043 { 0x7cf, 0x343, RTL_GIGA_MAC_VER_10 },
2044 { 0x7cf, 0x342, RTL_GIGA_MAC_VER_16 },
2045 { 0x7c8, 0x348, RTL_GIGA_MAC_VER_09 },
2046 { 0x7c8, 0x248, RTL_GIGA_MAC_VER_09 },
2047 { 0x7c8, 0x340, RTL_GIGA_MAC_VER_16 },
2048 /* FIXME: where did these entries come from ? -- FR
2049 * Not even r8101 vendor driver knows these id's,
2050 * so let's disable detection for now. -- HK
2051 * { 0xfc8, 0x388, RTL_GIGA_MAC_VER_13 },
2052 * { 0xfc8, 0x308, RTL_GIGA_MAC_VER_13 },
2056 { 0xfc8, 0x980, RTL_GIGA_MAC_VER_06 },
2057 { 0xfc8, 0x180, RTL_GIGA_MAC_VER_05 },
2058 { 0xfc8, 0x100, RTL_GIGA_MAC_VER_04 },
2059 { 0xfc8, 0x040, RTL_GIGA_MAC_VER_03 },
2060 { 0xfc8, 0x008, RTL_GIGA_MAC_VER_02 },
2063 { 0x000, 0x000, RTL_GIGA_MAC_NONE }
2065 const struct rtl_mac_info *p = mac_info;
2066 enum mac_version ver;
2068 while ((xid & p->mask) != p->val)
2072 if (ver != RTL_GIGA_MAC_NONE && !gmii) {
2073 if (ver == RTL_GIGA_MAC_VER_42)
2074 ver = RTL_GIGA_MAC_VER_43;
2075 else if (ver == RTL_GIGA_MAC_VER_45)
2076 ver = RTL_GIGA_MAC_VER_47;
2077 else if (ver == RTL_GIGA_MAC_VER_46)
2078 ver = RTL_GIGA_MAC_VER_48;
2084 static void rtl_release_firmware(struct rtl8169_private *tp)
2087 rtl_fw_release_firmware(tp->rtl_fw);
2093 void r8169_apply_firmware(struct rtl8169_private *tp)
2097 /* TODO: release firmware if rtl_fw_write_firmware signals failure. */
2099 rtl_fw_write_firmware(tp, tp->rtl_fw);
2100 /* At least one firmware doesn't reset tp->ocp_base. */
2101 tp->ocp_base = OCP_STD_PHY_BASE;
2103 /* PHY soft reset may still be in progress */
2104 phy_read_poll_timeout(tp->phydev, MII_BMCR, val,
2105 !(val & BMCR_RESET),
2106 50000, 600000, true);
2110 static void rtl8168_config_eee_mac(struct rtl8169_private *tp)
2112 /* Adjust EEE LED frequency */
2113 if (tp->mac_version != RTL_GIGA_MAC_VER_38)
2114 RTL_W8(tp, EEE_LED, RTL_R8(tp, EEE_LED) & ~0x07);
2116 rtl_eri_set_bits(tp, 0x1b0, 0x0003);
2119 static void rtl8125a_config_eee_mac(struct rtl8169_private *tp)
2121 r8168_mac_ocp_modify(tp, 0xe040, 0, BIT(1) | BIT(0));
2122 r8168_mac_ocp_modify(tp, 0xeb62, 0, BIT(2) | BIT(1));
2125 static void rtl8125_set_eee_txidle_timer(struct rtl8169_private *tp)
2127 RTL_W16(tp, EEE_TXIDLE_TIMER_8125, tp->dev->mtu + ETH_HLEN + 0x20);
2130 static void rtl8125b_config_eee_mac(struct rtl8169_private *tp)
2132 rtl8125_set_eee_txidle_timer(tp);
2133 r8168_mac_ocp_modify(tp, 0xe040, 0, BIT(1) | BIT(0));
2136 static void rtl_rar_exgmac_set(struct rtl8169_private *tp, const u8 *addr)
2138 rtl_eri_write(tp, 0xe0, ERIAR_MASK_1111, get_unaligned_le32(addr));
2139 rtl_eri_write(tp, 0xe4, ERIAR_MASK_1111, get_unaligned_le16(addr + 4));
2140 rtl_eri_write(tp, 0xf0, ERIAR_MASK_1111, get_unaligned_le16(addr) << 16);
2141 rtl_eri_write(tp, 0xf4, ERIAR_MASK_1111, get_unaligned_le32(addr + 2));
2144 u16 rtl8168h_2_get_adc_bias_ioffset(struct rtl8169_private *tp)
2146 u16 data1, data2, ioffset;
2148 r8168_mac_ocp_write(tp, 0xdd02, 0x807d);
2149 data1 = r8168_mac_ocp_read(tp, 0xdd02);
2150 data2 = r8168_mac_ocp_read(tp, 0xdd00);
2152 ioffset = (data2 >> 1) & 0x7ff8;
2153 ioffset |= data2 & 0x0007;
2160 static void rtl_schedule_task(struct rtl8169_private *tp, enum rtl_flag flag)
2162 set_bit(flag, tp->wk.flags);
2163 schedule_work(&tp->wk.work);
2166 static void rtl8169_init_phy(struct rtl8169_private *tp)
2168 r8169_hw_phy_config(tp, tp->phydev, tp->mac_version);
2170 if (tp->mac_version <= RTL_GIGA_MAC_VER_06) {
2171 pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40);
2172 pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08);
2173 /* set undocumented MAC Reg C+CR Offset 0x82h */
2174 RTL_W8(tp, 0x82, 0x01);
2177 if (tp->mac_version == RTL_GIGA_MAC_VER_05 &&
2178 tp->pci_dev->subsystem_vendor == PCI_VENDOR_ID_GIGABYTE &&
2179 tp->pci_dev->subsystem_device == 0xe000)
2180 phy_write_paged(tp->phydev, 0x0001, 0x10, 0xf01b);
2182 /* We may have called phy_speed_down before */
2183 phy_speed_up(tp->phydev);
2185 if (rtl_supports_eee(tp))
2188 genphy_soft_reset(tp->phydev);
2191 static void rtl_rar_set(struct rtl8169_private *tp, const u8 *addr)
2193 rtl_unlock_config_regs(tp);
2195 RTL_W32(tp, MAC4, get_unaligned_le16(addr + 4));
2198 RTL_W32(tp, MAC0, get_unaligned_le32(addr));
2201 if (tp->mac_version == RTL_GIGA_MAC_VER_34)
2202 rtl_rar_exgmac_set(tp, addr);
2204 rtl_lock_config_regs(tp);
2207 static int rtl_set_mac_address(struct net_device *dev, void *p)
2209 struct rtl8169_private *tp = netdev_priv(dev);
2212 ret = eth_mac_addr(dev, p);
2216 rtl_rar_set(tp, dev->dev_addr);
2221 static void rtl_wol_enable_rx(struct rtl8169_private *tp)
2223 if (tp->mac_version >= RTL_GIGA_MAC_VER_25)
2224 RTL_W32(tp, RxConfig, RTL_R32(tp, RxConfig) |
2225 AcceptBroadcast | AcceptMulticast | AcceptMyPhys);
2228 static void rtl_prepare_power_down(struct rtl8169_private *tp)
2230 if (tp->dash_type != RTL_DASH_NONE)
2233 if (tp->mac_version == RTL_GIGA_MAC_VER_32 ||
2234 tp->mac_version == RTL_GIGA_MAC_VER_33)
2235 rtl_ephy_write(tp, 0x19, 0xff64);
2237 if (device_may_wakeup(tp_to_dev(tp))) {
2238 phy_speed_down(tp->phydev, false);
2239 rtl_wol_enable_rx(tp);
2243 static void rtl_init_rxcfg(struct rtl8169_private *tp)
2245 switch (tp->mac_version) {
2246 case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
2247 case RTL_GIGA_MAC_VER_10 ... RTL_GIGA_MAC_VER_17:
2248 RTL_W32(tp, RxConfig, RX_FIFO_THRESH | RX_DMA_BURST);
2250 case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_24:
2251 case RTL_GIGA_MAC_VER_34 ... RTL_GIGA_MAC_VER_36:
2252 case RTL_GIGA_MAC_VER_38:
2253 RTL_W32(tp, RxConfig, RX128_INT_EN | RX_MULTI_EN | RX_DMA_BURST);
2255 case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_53:
2256 RTL_W32(tp, RxConfig, RX128_INT_EN | RX_MULTI_EN | RX_DMA_BURST | RX_EARLY_OFF);
2258 case RTL_GIGA_MAC_VER_60 ... RTL_GIGA_MAC_VER_63:
2259 RTL_W32(tp, RxConfig, RX_FETCH_DFLT_8125 | RX_DMA_BURST);
2262 RTL_W32(tp, RxConfig, RX128_INT_EN | RX_DMA_BURST);
2267 static void rtl8169_init_ring_indexes(struct rtl8169_private *tp)
2269 tp->dirty_tx = tp->cur_tx = tp->cur_rx = 0;
2272 static void r8168c_hw_jumbo_enable(struct rtl8169_private *tp)
2274 RTL_W8(tp, Config3, RTL_R8(tp, Config3) | Jumbo_En0);
2275 RTL_W8(tp, Config4, RTL_R8(tp, Config4) | Jumbo_En1);
2278 static void r8168c_hw_jumbo_disable(struct rtl8169_private *tp)
2280 RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Jumbo_En0);
2281 RTL_W8(tp, Config4, RTL_R8(tp, Config4) & ~Jumbo_En1);
2284 static void r8168dp_hw_jumbo_enable(struct rtl8169_private *tp)
2286 RTL_W8(tp, Config3, RTL_R8(tp, Config3) | Jumbo_En0);
2289 static void r8168dp_hw_jumbo_disable(struct rtl8169_private *tp)
2291 RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Jumbo_En0);
2294 static void r8168e_hw_jumbo_enable(struct rtl8169_private *tp)
2296 RTL_W8(tp, MaxTxPacketSize, 0x24);
2297 RTL_W8(tp, Config3, RTL_R8(tp, Config3) | Jumbo_En0);
2298 RTL_W8(tp, Config4, RTL_R8(tp, Config4) | 0x01);
2301 static void r8168e_hw_jumbo_disable(struct rtl8169_private *tp)
2303 RTL_W8(tp, MaxTxPacketSize, 0x3f);
2304 RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Jumbo_En0);
2305 RTL_W8(tp, Config4, RTL_R8(tp, Config4) & ~0x01);
2308 static void r8168b_1_hw_jumbo_enable(struct rtl8169_private *tp)
2310 RTL_W8(tp, Config4, RTL_R8(tp, Config4) | (1 << 0));
2313 static void r8168b_1_hw_jumbo_disable(struct rtl8169_private *tp)
2315 RTL_W8(tp, Config4, RTL_R8(tp, Config4) & ~(1 << 0));
2318 static void rtl_jumbo_config(struct rtl8169_private *tp)
2320 bool jumbo = tp->dev->mtu > ETH_DATA_LEN;
2323 rtl_unlock_config_regs(tp);
2324 switch (tp->mac_version) {
2325 case RTL_GIGA_MAC_VER_12:
2326 case RTL_GIGA_MAC_VER_17:
2329 r8168b_1_hw_jumbo_enable(tp);
2331 r8168b_1_hw_jumbo_disable(tp);
2334 case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_26:
2337 r8168c_hw_jumbo_enable(tp);
2339 r8168c_hw_jumbo_disable(tp);
2342 case RTL_GIGA_MAC_VER_27 ... RTL_GIGA_MAC_VER_28:
2344 r8168dp_hw_jumbo_enable(tp);
2346 r8168dp_hw_jumbo_disable(tp);
2348 case RTL_GIGA_MAC_VER_31 ... RTL_GIGA_MAC_VER_33:
2350 r8168e_hw_jumbo_enable(tp);
2352 r8168e_hw_jumbo_disable(tp);
2357 rtl_lock_config_regs(tp);
2359 if (pci_is_pcie(tp->pci_dev) && tp->supports_gmii)
2360 pcie_set_readrq(tp->pci_dev, readrq);
2363 DECLARE_RTL_COND(rtl_chipcmd_cond)
2365 return RTL_R8(tp, ChipCmd) & CmdReset;
2368 static void rtl_hw_reset(struct rtl8169_private *tp)
2370 RTL_W8(tp, ChipCmd, CmdReset);
2372 rtl_loop_wait_low(tp, &rtl_chipcmd_cond, 100, 100);
2375 static void rtl_request_firmware(struct rtl8169_private *tp)
2377 struct rtl_fw *rtl_fw;
2379 /* firmware loaded already or no firmware available */
2380 if (tp->rtl_fw || !tp->fw_name)
2383 rtl_fw = kzalloc(sizeof(*rtl_fw), GFP_KERNEL);
2387 rtl_fw->phy_write = rtl_writephy;
2388 rtl_fw->phy_read = rtl_readphy;
2389 rtl_fw->mac_mcu_write = mac_mcu_write;
2390 rtl_fw->mac_mcu_read = mac_mcu_read;
2391 rtl_fw->fw_name = tp->fw_name;
2392 rtl_fw->dev = tp_to_dev(tp);
2394 if (rtl_fw_request_firmware(rtl_fw))
2397 tp->rtl_fw = rtl_fw;
2400 static void rtl_rx_close(struct rtl8169_private *tp)
2402 RTL_W32(tp, RxConfig, RTL_R32(tp, RxConfig) & ~RX_CONFIG_ACCEPT_MASK);
2405 DECLARE_RTL_COND(rtl_npq_cond)
2407 return RTL_R8(tp, TxPoll) & NPQ;
2410 DECLARE_RTL_COND(rtl_txcfg_empty_cond)
2412 return RTL_R32(tp, TxConfig) & TXCFG_EMPTY;
2415 DECLARE_RTL_COND(rtl_rxtx_empty_cond)
2417 return (RTL_R8(tp, MCU) & RXTX_EMPTY) == RXTX_EMPTY;
2420 DECLARE_RTL_COND(rtl_rxtx_empty_cond_2)
2422 /* IntrMitigate has new functionality on RTL8125 */
2423 return (RTL_R16(tp, IntrMitigate) & 0x0103) == 0x0103;
2426 static void rtl_wait_txrx_fifo_empty(struct rtl8169_private *tp)
2428 switch (tp->mac_version) {
2429 case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_53:
2430 rtl_loop_wait_high(tp, &rtl_txcfg_empty_cond, 100, 42);
2431 rtl_loop_wait_high(tp, &rtl_rxtx_empty_cond, 100, 42);
2433 case RTL_GIGA_MAC_VER_60 ... RTL_GIGA_MAC_VER_61:
2434 rtl_loop_wait_high(tp, &rtl_rxtx_empty_cond, 100, 42);
2436 case RTL_GIGA_MAC_VER_63:
2437 RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) | StopReq);
2438 rtl_loop_wait_high(tp, &rtl_rxtx_empty_cond, 100, 42);
2439 rtl_loop_wait_high(tp, &rtl_rxtx_empty_cond_2, 100, 42);
2446 static void rtl_enable_rxdvgate(struct rtl8169_private *tp)
2448 RTL_W32(tp, MISC, RTL_R32(tp, MISC) | RXDV_GATED_EN);
2450 rtl_wait_txrx_fifo_empty(tp);
2453 static void rtl_set_tx_config_registers(struct rtl8169_private *tp)
2455 u32 val = TX_DMA_BURST << TxDMAShift |
2456 InterFrameGap << TxInterFrameGapShift;
2458 if (rtl_is_8168evl_up(tp))
2459 val |= TXCFG_AUTO_FIFO;
2461 RTL_W32(tp, TxConfig, val);
2464 static void rtl_set_rx_max_size(struct rtl8169_private *tp)
2466 /* Low hurts. Let's disable the filtering. */
2467 RTL_W16(tp, RxMaxSize, R8169_RX_BUF_SIZE + 1);
2470 static void rtl_set_rx_tx_desc_registers(struct rtl8169_private *tp)
2473 * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh
2474 * register to be written before TxDescAddrLow to work.
2475 * Switching from MMIO to I/O access fixes the issue as well.
2477 RTL_W32(tp, TxDescStartAddrHigh, ((u64) tp->TxPhyAddr) >> 32);
2478 RTL_W32(tp, TxDescStartAddrLow, ((u64) tp->TxPhyAddr) & DMA_BIT_MASK(32));
2479 RTL_W32(tp, RxDescAddrHigh, ((u64) tp->RxPhyAddr) >> 32);
2480 RTL_W32(tp, RxDescAddrLow, ((u64) tp->RxPhyAddr) & DMA_BIT_MASK(32));
2483 static void rtl8169_set_magic_reg(struct rtl8169_private *tp)
2487 if (tp->mac_version == RTL_GIGA_MAC_VER_05)
2489 else if (tp->mac_version == RTL_GIGA_MAC_VER_06)
2494 if (RTL_R8(tp, Config2) & PCI_Clock_66MHz)
2497 RTL_W32(tp, 0x7c, val);
2500 static void rtl_set_rx_mode(struct net_device *dev)
2502 u32 rx_mode = AcceptBroadcast | AcceptMyPhys | AcceptMulticast;
2503 /* Multicast hash filter */
2504 u32 mc_filter[2] = { 0xffffffff, 0xffffffff };
2505 struct rtl8169_private *tp = netdev_priv(dev);
2508 if (dev->flags & IFF_PROMISC) {
2509 rx_mode |= AcceptAllPhys;
2510 } else if (netdev_mc_count(dev) > MC_FILTER_LIMIT ||
2511 dev->flags & IFF_ALLMULTI ||
2512 tp->mac_version == RTL_GIGA_MAC_VER_35) {
2513 /* accept all multicasts */
2514 } else if (netdev_mc_empty(dev)) {
2515 rx_mode &= ~AcceptMulticast;
2517 struct netdev_hw_addr *ha;
2519 mc_filter[1] = mc_filter[0] = 0;
2520 netdev_for_each_mc_addr(ha, dev) {
2521 u32 bit_nr = eth_hw_addr_crc(ha) >> 26;
2522 mc_filter[bit_nr >> 5] |= BIT(bit_nr & 31);
2525 if (tp->mac_version > RTL_GIGA_MAC_VER_06) {
2527 mc_filter[0] = swab32(mc_filter[1]);
2528 mc_filter[1] = swab32(tmp);
2532 RTL_W32(tp, MAR0 + 4, mc_filter[1]);
2533 RTL_W32(tp, MAR0 + 0, mc_filter[0]);
2535 tmp = RTL_R32(tp, RxConfig);
2536 RTL_W32(tp, RxConfig, (tmp & ~RX_CONFIG_ACCEPT_OK_MASK) | rx_mode);
2539 DECLARE_RTL_COND(rtl_csiar_cond)
2541 return RTL_R32(tp, CSIAR) & CSIAR_FLAG;
2544 static void rtl_csi_write(struct rtl8169_private *tp, int addr, int value)
2546 u32 func = PCI_FUNC(tp->pci_dev->devfn);
2548 RTL_W32(tp, CSIDR, value);
2549 RTL_W32(tp, CSIAR, CSIAR_WRITE_CMD | (addr & CSIAR_ADDR_MASK) |
2550 CSIAR_BYTE_ENABLE | func << 16);
2552 rtl_loop_wait_low(tp, &rtl_csiar_cond, 10, 100);
2555 static u32 rtl_csi_read(struct rtl8169_private *tp, int addr)
2557 u32 func = PCI_FUNC(tp->pci_dev->devfn);
2559 RTL_W32(tp, CSIAR, (addr & CSIAR_ADDR_MASK) | func << 16 |
2562 return rtl_loop_wait_high(tp, &rtl_csiar_cond, 10, 100) ?
2563 RTL_R32(tp, CSIDR) : ~0;
2566 static void rtl_csi_access_enable(struct rtl8169_private *tp, u8 val)
2568 struct pci_dev *pdev = tp->pci_dev;
2571 /* According to Realtek the value at config space address 0x070f
2572 * controls the L0s/L1 entrance latency. We try standard ECAM access
2573 * first and if it fails fall back to CSI.
2575 if (pdev->cfg_size > 0x070f &&
2576 pci_write_config_byte(pdev, 0x070f, val) == PCIBIOS_SUCCESSFUL)
2579 netdev_notice_once(tp->dev,
2580 "No native access to PCI extended config space, falling back to CSI\n");
2581 csi = rtl_csi_read(tp, 0x070c) & 0x00ffffff;
2582 rtl_csi_write(tp, 0x070c, csi | val << 24);
2585 static void rtl_set_def_aspm_entry_latency(struct rtl8169_private *tp)
2587 rtl_csi_access_enable(tp, 0x27);
2591 unsigned int offset;
2596 static void __rtl_ephy_init(struct rtl8169_private *tp,
2597 const struct ephy_info *e, int len)
2602 w = (rtl_ephy_read(tp, e->offset) & ~e->mask) | e->bits;
2603 rtl_ephy_write(tp, e->offset, w);
2608 #define rtl_ephy_init(tp, a) __rtl_ephy_init(tp, a, ARRAY_SIZE(a))
2610 static void rtl_disable_clock_request(struct rtl8169_private *tp)
2612 pcie_capability_clear_word(tp->pci_dev, PCI_EXP_LNKCTL,
2613 PCI_EXP_LNKCTL_CLKREQ_EN);
2616 static void rtl_enable_clock_request(struct rtl8169_private *tp)
2618 pcie_capability_set_word(tp->pci_dev, PCI_EXP_LNKCTL,
2619 PCI_EXP_LNKCTL_CLKREQ_EN);
2622 static void rtl_pcie_state_l2l3_disable(struct rtl8169_private *tp)
2624 /* work around an issue when PCI reset occurs during L2/L3 state */
2625 RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Rdy_to_L23);
2628 static void rtl_hw_aspm_clkreq_enable(struct rtl8169_private *tp, bool enable)
2630 /* Don't enable ASPM in the chip if OS can't control ASPM */
2631 if (enable && tp->aspm_manageable) {
2632 RTL_W8(tp, Config5, RTL_R8(tp, Config5) | ASPM_en);
2633 RTL_W8(tp, Config2, RTL_R8(tp, Config2) | ClkReqEn);
2635 RTL_W8(tp, Config2, RTL_R8(tp, Config2) & ~ClkReqEn);
2636 RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~ASPM_en);
2642 static void rtl_set_fifo_size(struct rtl8169_private *tp, u16 rx_stat,
2643 u16 tx_stat, u16 rx_dyn, u16 tx_dyn)
2645 /* Usage of dynamic vs. static FIFO is controlled by bit
2646 * TXCFG_AUTO_FIFO. Exact meaning of FIFO values isn't known.
2648 rtl_eri_write(tp, 0xc8, ERIAR_MASK_1111, (rx_stat << 16) | rx_dyn);
2649 rtl_eri_write(tp, 0xe8, ERIAR_MASK_1111, (tx_stat << 16) | tx_dyn);
2652 static void rtl8168g_set_pause_thresholds(struct rtl8169_private *tp,
2655 /* FIFO thresholds for pause flow control */
2656 rtl_eri_write(tp, 0xcc, ERIAR_MASK_0001, low);
2657 rtl_eri_write(tp, 0xd0, ERIAR_MASK_0001, high);
2660 static void rtl_hw_start_8168b(struct rtl8169_private *tp)
2662 RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
2665 static void __rtl_hw_start_8168cp(struct rtl8169_private *tp)
2667 RTL_W8(tp, Config1, RTL_R8(tp, Config1) | Speed_down);
2669 RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
2671 rtl_disable_clock_request(tp);
2674 static void rtl_hw_start_8168cp_1(struct rtl8169_private *tp)
2676 static const struct ephy_info e_info_8168cp[] = {
2677 { 0x01, 0, 0x0001 },
2678 { 0x02, 0x0800, 0x1000 },
2679 { 0x03, 0, 0x0042 },
2680 { 0x06, 0x0080, 0x0000 },
2684 rtl_set_def_aspm_entry_latency(tp);
2686 rtl_ephy_init(tp, e_info_8168cp);
2688 __rtl_hw_start_8168cp(tp);
2691 static void rtl_hw_start_8168cp_2(struct rtl8169_private *tp)
2693 rtl_set_def_aspm_entry_latency(tp);
2695 RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
2698 static void rtl_hw_start_8168cp_3(struct rtl8169_private *tp)
2700 rtl_set_def_aspm_entry_latency(tp);
2702 RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
2705 RTL_W8(tp, DBG_REG, 0x20);
2708 static void rtl_hw_start_8168c_1(struct rtl8169_private *tp)
2710 static const struct ephy_info e_info_8168c_1[] = {
2711 { 0x02, 0x0800, 0x1000 },
2712 { 0x03, 0, 0x0002 },
2713 { 0x06, 0x0080, 0x0000 }
2716 rtl_set_def_aspm_entry_latency(tp);
2718 RTL_W8(tp, DBG_REG, 0x06 | FIX_NAK_1 | FIX_NAK_2);
2720 rtl_ephy_init(tp, e_info_8168c_1);
2722 __rtl_hw_start_8168cp(tp);
2725 static void rtl_hw_start_8168c_2(struct rtl8169_private *tp)
2727 static const struct ephy_info e_info_8168c_2[] = {
2728 { 0x01, 0, 0x0001 },
2729 { 0x03, 0x0400, 0x0020 }
2732 rtl_set_def_aspm_entry_latency(tp);
2734 rtl_ephy_init(tp, e_info_8168c_2);
2736 __rtl_hw_start_8168cp(tp);
2739 static void rtl_hw_start_8168c_4(struct rtl8169_private *tp)
2741 rtl_set_def_aspm_entry_latency(tp);
2743 __rtl_hw_start_8168cp(tp);
2746 static void rtl_hw_start_8168d(struct rtl8169_private *tp)
2748 rtl_set_def_aspm_entry_latency(tp);
2750 rtl_disable_clock_request(tp);
2753 static void rtl_hw_start_8168d_4(struct rtl8169_private *tp)
2755 static const struct ephy_info e_info_8168d_4[] = {
2756 { 0x0b, 0x0000, 0x0048 },
2757 { 0x19, 0x0020, 0x0050 },
2758 { 0x0c, 0x0100, 0x0020 },
2759 { 0x10, 0x0004, 0x0000 },
2762 rtl_set_def_aspm_entry_latency(tp);
2764 rtl_ephy_init(tp, e_info_8168d_4);
2766 rtl_enable_clock_request(tp);
2769 static void rtl_hw_start_8168e_1(struct rtl8169_private *tp)
2771 static const struct ephy_info e_info_8168e_1[] = {
2772 { 0x00, 0x0200, 0x0100 },
2773 { 0x00, 0x0000, 0x0004 },
2774 { 0x06, 0x0002, 0x0001 },
2775 { 0x06, 0x0000, 0x0030 },
2776 { 0x07, 0x0000, 0x2000 },
2777 { 0x00, 0x0000, 0x0020 },
2778 { 0x03, 0x5800, 0x2000 },
2779 { 0x03, 0x0000, 0x0001 },
2780 { 0x01, 0x0800, 0x1000 },
2781 { 0x07, 0x0000, 0x4000 },
2782 { 0x1e, 0x0000, 0x2000 },
2783 { 0x19, 0xffff, 0xfe6c },
2784 { 0x0a, 0x0000, 0x0040 }
2787 rtl_set_def_aspm_entry_latency(tp);
2789 rtl_ephy_init(tp, e_info_8168e_1);
2791 rtl_disable_clock_request(tp);
2793 /* Reset tx FIFO pointer */
2794 RTL_W32(tp, MISC, RTL_R32(tp, MISC) | TXPLA_RST);
2795 RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~TXPLA_RST);
2797 RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~Spi_en);
2800 static void rtl_hw_start_8168e_2(struct rtl8169_private *tp)
2802 static const struct ephy_info e_info_8168e_2[] = {
2803 { 0x09, 0x0000, 0x0080 },
2804 { 0x19, 0x0000, 0x0224 },
2805 { 0x00, 0x0000, 0x0004 },
2806 { 0x0c, 0x3df0, 0x0200 },
2809 rtl_set_def_aspm_entry_latency(tp);
2811 rtl_ephy_init(tp, e_info_8168e_2);
2813 rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
2814 rtl_eri_write(tp, 0xb8, ERIAR_MASK_1111, 0x0000);
2815 rtl_set_fifo_size(tp, 0x10, 0x10, 0x02, 0x06);
2816 rtl_eri_set_bits(tp, 0x0d4, 0x1f00);
2817 rtl_eri_set_bits(tp, 0x1d0, BIT(1));
2818 rtl_reset_packet_filter(tp);
2819 rtl_eri_set_bits(tp, 0x1b0, BIT(4));
2820 rtl_eri_write(tp, 0xcc, ERIAR_MASK_1111, 0x00000050);
2821 rtl_eri_write(tp, 0xd0, ERIAR_MASK_1111, 0x07ff0060);
2823 rtl_disable_clock_request(tp);
2825 RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
2827 rtl8168_config_eee_mac(tp);
2829 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) | PFM_EN);
2830 RTL_W32(tp, MISC, RTL_R32(tp, MISC) | PWM_EN);
2831 RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~Spi_en);
2833 rtl_hw_aspm_clkreq_enable(tp, true);
2836 static void rtl_hw_start_8168f(struct rtl8169_private *tp)
2838 rtl_set_def_aspm_entry_latency(tp);
2840 rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
2841 rtl_eri_write(tp, 0xb8, ERIAR_MASK_1111, 0x0000);
2842 rtl_set_fifo_size(tp, 0x10, 0x10, 0x02, 0x06);
2843 rtl_reset_packet_filter(tp);
2844 rtl_eri_set_bits(tp, 0x1b0, BIT(4));
2845 rtl_eri_set_bits(tp, 0x1d0, BIT(4) | BIT(1));
2846 rtl_eri_write(tp, 0xcc, ERIAR_MASK_1111, 0x00000050);
2847 rtl_eri_write(tp, 0xd0, ERIAR_MASK_1111, 0x00000060);
2849 rtl_disable_clock_request(tp);
2851 RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
2852 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) | PFM_EN);
2853 RTL_W32(tp, MISC, RTL_R32(tp, MISC) | PWM_EN);
2854 RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~Spi_en);
2856 rtl8168_config_eee_mac(tp);
2859 static void rtl_hw_start_8168f_1(struct rtl8169_private *tp)
2861 static const struct ephy_info e_info_8168f_1[] = {
2862 { 0x06, 0x00c0, 0x0020 },
2863 { 0x08, 0x0001, 0x0002 },
2864 { 0x09, 0x0000, 0x0080 },
2865 { 0x19, 0x0000, 0x0224 },
2866 { 0x00, 0x0000, 0x0008 },
2867 { 0x0c, 0x3df0, 0x0200 },
2870 rtl_hw_start_8168f(tp);
2872 rtl_ephy_init(tp, e_info_8168f_1);
2874 rtl_eri_set_bits(tp, 0x0d4, 0x1f00);
2877 static void rtl_hw_start_8411(struct rtl8169_private *tp)
2879 static const struct ephy_info e_info_8168f_1[] = {
2880 { 0x06, 0x00c0, 0x0020 },
2881 { 0x0f, 0xffff, 0x5200 },
2882 { 0x19, 0x0000, 0x0224 },
2883 { 0x00, 0x0000, 0x0008 },
2884 { 0x0c, 0x3df0, 0x0200 },
2887 rtl_hw_start_8168f(tp);
2888 rtl_pcie_state_l2l3_disable(tp);
2890 rtl_ephy_init(tp, e_info_8168f_1);
2892 rtl_eri_set_bits(tp, 0x0d4, 0x0c00);
2895 static void rtl_hw_start_8168g(struct rtl8169_private *tp)
2897 rtl_set_fifo_size(tp, 0x08, 0x10, 0x02, 0x06);
2898 rtl8168g_set_pause_thresholds(tp, 0x38, 0x48);
2900 rtl_set_def_aspm_entry_latency(tp);
2902 rtl_reset_packet_filter(tp);
2903 rtl_eri_write(tp, 0x2f8, ERIAR_MASK_0011, 0x1d8f);
2905 RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~RXDV_GATED_EN);
2907 rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
2908 rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
2909 rtl_eri_set_bits(tp, 0x0d4, 0x1f80);
2911 rtl8168_config_eee_mac(tp);
2913 rtl_w0w1_eri(tp, 0x2fc, 0x01, 0x06);
2914 rtl_eri_clear_bits(tp, 0x1b0, BIT(12));
2916 rtl_pcie_state_l2l3_disable(tp);
2919 static void rtl_hw_start_8168g_1(struct rtl8169_private *tp)
2921 static const struct ephy_info e_info_8168g_1[] = {
2922 { 0x00, 0x0008, 0x0000 },
2923 { 0x0c, 0x3ff0, 0x0820 },
2924 { 0x1e, 0x0000, 0x0001 },
2925 { 0x19, 0x8000, 0x0000 }
2928 rtl_hw_start_8168g(tp);
2930 /* disable aspm and clock request before access ephy */
2931 rtl_hw_aspm_clkreq_enable(tp, false);
2932 rtl_ephy_init(tp, e_info_8168g_1);
2933 rtl_hw_aspm_clkreq_enable(tp, true);
2936 static void rtl_hw_start_8168g_2(struct rtl8169_private *tp)
2938 static const struct ephy_info e_info_8168g_2[] = {
2939 { 0x00, 0x0008, 0x0000 },
2940 { 0x0c, 0x3ff0, 0x0820 },
2941 { 0x19, 0xffff, 0x7c00 },
2942 { 0x1e, 0xffff, 0x20eb },
2943 { 0x0d, 0xffff, 0x1666 },
2944 { 0x00, 0xffff, 0x10a3 },
2945 { 0x06, 0xffff, 0xf050 },
2946 { 0x04, 0x0000, 0x0010 },
2947 { 0x1d, 0x4000, 0x0000 },
2950 rtl_hw_start_8168g(tp);
2952 /* disable aspm and clock request before access ephy */
2953 rtl_hw_aspm_clkreq_enable(tp, false);
2954 rtl_ephy_init(tp, e_info_8168g_2);
2957 static void rtl_hw_start_8411_2(struct rtl8169_private *tp)
2959 static const struct ephy_info e_info_8411_2[] = {
2960 { 0x00, 0x0008, 0x0000 },
2961 { 0x0c, 0x37d0, 0x0820 },
2962 { 0x1e, 0x0000, 0x0001 },
2963 { 0x19, 0x8021, 0x0000 },
2964 { 0x1e, 0x0000, 0x2000 },
2965 { 0x0d, 0x0100, 0x0200 },
2966 { 0x00, 0x0000, 0x0080 },
2967 { 0x06, 0x0000, 0x0010 },
2968 { 0x04, 0x0000, 0x0010 },
2969 { 0x1d, 0x0000, 0x4000 },
2972 rtl_hw_start_8168g(tp);
2974 /* disable aspm and clock request before access ephy */
2975 rtl_hw_aspm_clkreq_enable(tp, false);
2976 rtl_ephy_init(tp, e_info_8411_2);
2978 /* The following Realtek-provided magic fixes an issue with the RX unit
2979 * getting confused after the PHY having been powered-down.
2981 r8168_mac_ocp_write(tp, 0xFC28, 0x0000);
2982 r8168_mac_ocp_write(tp, 0xFC2A, 0x0000);
2983 r8168_mac_ocp_write(tp, 0xFC2C, 0x0000);
2984 r8168_mac_ocp_write(tp, 0xFC2E, 0x0000);
2985 r8168_mac_ocp_write(tp, 0xFC30, 0x0000);
2986 r8168_mac_ocp_write(tp, 0xFC32, 0x0000);
2987 r8168_mac_ocp_write(tp, 0xFC34, 0x0000);
2988 r8168_mac_ocp_write(tp, 0xFC36, 0x0000);
2990 r8168_mac_ocp_write(tp, 0xFC26, 0x0000);
2992 r8168_mac_ocp_write(tp, 0xF800, 0xE008);
2993 r8168_mac_ocp_write(tp, 0xF802, 0xE00A);
2994 r8168_mac_ocp_write(tp, 0xF804, 0xE00C);
2995 r8168_mac_ocp_write(tp, 0xF806, 0xE00E);
2996 r8168_mac_ocp_write(tp, 0xF808, 0xE027);
2997 r8168_mac_ocp_write(tp, 0xF80A, 0xE04F);
2998 r8168_mac_ocp_write(tp, 0xF80C, 0xE05E);
2999 r8168_mac_ocp_write(tp, 0xF80E, 0xE065);
3000 r8168_mac_ocp_write(tp, 0xF810, 0xC602);
3001 r8168_mac_ocp_write(tp, 0xF812, 0xBE00);
3002 r8168_mac_ocp_write(tp, 0xF814, 0x0000);
3003 r8168_mac_ocp_write(tp, 0xF816, 0xC502);
3004 r8168_mac_ocp_write(tp, 0xF818, 0xBD00);
3005 r8168_mac_ocp_write(tp, 0xF81A, 0x074C);
3006 r8168_mac_ocp_write(tp, 0xF81C, 0xC302);
3007 r8168_mac_ocp_write(tp, 0xF81E, 0xBB00);
3008 r8168_mac_ocp_write(tp, 0xF820, 0x080A);
3009 r8168_mac_ocp_write(tp, 0xF822, 0x6420);
3010 r8168_mac_ocp_write(tp, 0xF824, 0x48C2);
3011 r8168_mac_ocp_write(tp, 0xF826, 0x8C20);
3012 r8168_mac_ocp_write(tp, 0xF828, 0xC516);
3013 r8168_mac_ocp_write(tp, 0xF82A, 0x64A4);
3014 r8168_mac_ocp_write(tp, 0xF82C, 0x49C0);
3015 r8168_mac_ocp_write(tp, 0xF82E, 0xF009);
3016 r8168_mac_ocp_write(tp, 0xF830, 0x74A2);
3017 r8168_mac_ocp_write(tp, 0xF832, 0x8CA5);
3018 r8168_mac_ocp_write(tp, 0xF834, 0x74A0);
3019 r8168_mac_ocp_write(tp, 0xF836, 0xC50E);
3020 r8168_mac_ocp_write(tp, 0xF838, 0x9CA2);
3021 r8168_mac_ocp_write(tp, 0xF83A, 0x1C11);
3022 r8168_mac_ocp_write(tp, 0xF83C, 0x9CA0);
3023 r8168_mac_ocp_write(tp, 0xF83E, 0xE006);
3024 r8168_mac_ocp_write(tp, 0xF840, 0x74F8);
3025 r8168_mac_ocp_write(tp, 0xF842, 0x48C4);
3026 r8168_mac_ocp_write(tp, 0xF844, 0x8CF8);
3027 r8168_mac_ocp_write(tp, 0xF846, 0xC404);
3028 r8168_mac_ocp_write(tp, 0xF848, 0xBC00);
3029 r8168_mac_ocp_write(tp, 0xF84A, 0xC403);
3030 r8168_mac_ocp_write(tp, 0xF84C, 0xBC00);
3031 r8168_mac_ocp_write(tp, 0xF84E, 0x0BF2);
3032 r8168_mac_ocp_write(tp, 0xF850, 0x0C0A);
3033 r8168_mac_ocp_write(tp, 0xF852, 0xE434);
3034 r8168_mac_ocp_write(tp, 0xF854, 0xD3C0);
3035 r8168_mac_ocp_write(tp, 0xF856, 0x49D9);
3036 r8168_mac_ocp_write(tp, 0xF858, 0xF01F);
3037 r8168_mac_ocp_write(tp, 0xF85A, 0xC526);
3038 r8168_mac_ocp_write(tp, 0xF85C, 0x64A5);
3039 r8168_mac_ocp_write(tp, 0xF85E, 0x1400);
3040 r8168_mac_ocp_write(tp, 0xF860, 0xF007);
3041 r8168_mac_ocp_write(tp, 0xF862, 0x0C01);
3042 r8168_mac_ocp_write(tp, 0xF864, 0x8CA5);
3043 r8168_mac_ocp_write(tp, 0xF866, 0x1C15);
3044 r8168_mac_ocp_write(tp, 0xF868, 0xC51B);
3045 r8168_mac_ocp_write(tp, 0xF86A, 0x9CA0);
3046 r8168_mac_ocp_write(tp, 0xF86C, 0xE013);
3047 r8168_mac_ocp_write(tp, 0xF86E, 0xC519);
3048 r8168_mac_ocp_write(tp, 0xF870, 0x74A0);
3049 r8168_mac_ocp_write(tp, 0xF872, 0x48C4);
3050 r8168_mac_ocp_write(tp, 0xF874, 0x8CA0);
3051 r8168_mac_ocp_write(tp, 0xF876, 0xC516);
3052 r8168_mac_ocp_write(tp, 0xF878, 0x74A4);
3053 r8168_mac_ocp_write(tp, 0xF87A, 0x48C8);
3054 r8168_mac_ocp_write(tp, 0xF87C, 0x48CA);
3055 r8168_mac_ocp_write(tp, 0xF87E, 0x9CA4);
3056 r8168_mac_ocp_write(tp, 0xF880, 0xC512);
3057 r8168_mac_ocp_write(tp, 0xF882, 0x1B00);
3058 r8168_mac_ocp_write(tp, 0xF884, 0x9BA0);
3059 r8168_mac_ocp_write(tp, 0xF886, 0x1B1C);
3060 r8168_mac_ocp_write(tp, 0xF888, 0x483F);
3061 r8168_mac_ocp_write(tp, 0xF88A, 0x9BA2);
3062 r8168_mac_ocp_write(tp, 0xF88C, 0x1B04);
3063 r8168_mac_ocp_write(tp, 0xF88E, 0xC508);
3064 r8168_mac_ocp_write(tp, 0xF890, 0x9BA0);
3065 r8168_mac_ocp_write(tp, 0xF892, 0xC505);
3066 r8168_mac_ocp_write(tp, 0xF894, 0xBD00);
3067 r8168_mac_ocp_write(tp, 0xF896, 0xC502);
3068 r8168_mac_ocp_write(tp, 0xF898, 0xBD00);
3069 r8168_mac_ocp_write(tp, 0xF89A, 0x0300);
3070 r8168_mac_ocp_write(tp, 0xF89C, 0x051E);
3071 r8168_mac_ocp_write(tp, 0xF89E, 0xE434);
3072 r8168_mac_ocp_write(tp, 0xF8A0, 0xE018);
3073 r8168_mac_ocp_write(tp, 0xF8A2, 0xE092);
3074 r8168_mac_ocp_write(tp, 0xF8A4, 0xDE20);
3075 r8168_mac_ocp_write(tp, 0xF8A6, 0xD3C0);
3076 r8168_mac_ocp_write(tp, 0xF8A8, 0xC50F);
3077 r8168_mac_ocp_write(tp, 0xF8AA, 0x76A4);
3078 r8168_mac_ocp_write(tp, 0xF8AC, 0x49E3);
3079 r8168_mac_ocp_write(tp, 0xF8AE, 0xF007);
3080 r8168_mac_ocp_write(tp, 0xF8B0, 0x49C0);
3081 r8168_mac_ocp_write(tp, 0xF8B2, 0xF103);
3082 r8168_mac_ocp_write(tp, 0xF8B4, 0xC607);
3083 r8168_mac_ocp_write(tp, 0xF8B6, 0xBE00);
3084 r8168_mac_ocp_write(tp, 0xF8B8, 0xC606);
3085 r8168_mac_ocp_write(tp, 0xF8BA, 0xBE00);
3086 r8168_mac_ocp_write(tp, 0xF8BC, 0xC602);
3087 r8168_mac_ocp_write(tp, 0xF8BE, 0xBE00);
3088 r8168_mac_ocp_write(tp, 0xF8C0, 0x0C4C);
3089 r8168_mac_ocp_write(tp, 0xF8C2, 0x0C28);
3090 r8168_mac_ocp_write(tp, 0xF8C4, 0x0C2C);
3091 r8168_mac_ocp_write(tp, 0xF8C6, 0xDC00);
3092 r8168_mac_ocp_write(tp, 0xF8C8, 0xC707);
3093 r8168_mac_ocp_write(tp, 0xF8CA, 0x1D00);
3094 r8168_mac_ocp_write(tp, 0xF8CC, 0x8DE2);
3095 r8168_mac_ocp_write(tp, 0xF8CE, 0x48C1);
3096 r8168_mac_ocp_write(tp, 0xF8D0, 0xC502);
3097 r8168_mac_ocp_write(tp, 0xF8D2, 0xBD00);
3098 r8168_mac_ocp_write(tp, 0xF8D4, 0x00AA);
3099 r8168_mac_ocp_write(tp, 0xF8D6, 0xE0C0);
3100 r8168_mac_ocp_write(tp, 0xF8D8, 0xC502);
3101 r8168_mac_ocp_write(tp, 0xF8DA, 0xBD00);
3102 r8168_mac_ocp_write(tp, 0xF8DC, 0x0132);
3104 r8168_mac_ocp_write(tp, 0xFC26, 0x8000);
3106 r8168_mac_ocp_write(tp, 0xFC2A, 0x0743);
3107 r8168_mac_ocp_write(tp, 0xFC2C, 0x0801);
3108 r8168_mac_ocp_write(tp, 0xFC2E, 0x0BE9);
3109 r8168_mac_ocp_write(tp, 0xFC30, 0x02FD);
3110 r8168_mac_ocp_write(tp, 0xFC32, 0x0C25);
3111 r8168_mac_ocp_write(tp, 0xFC34, 0x00A9);
3112 r8168_mac_ocp_write(tp, 0xFC36, 0x012D);
3114 rtl_hw_aspm_clkreq_enable(tp, true);
3117 static void rtl_hw_start_8168h_1(struct rtl8169_private *tp)
3119 static const struct ephy_info e_info_8168h_1[] = {
3120 { 0x1e, 0x0800, 0x0001 },
3121 { 0x1d, 0x0000, 0x0800 },
3122 { 0x05, 0xffff, 0x2089 },
3123 { 0x06, 0xffff, 0x5881 },
3124 { 0x04, 0xffff, 0x854a },
3125 { 0x01, 0xffff, 0x068b }
3129 /* disable aspm and clock request before access ephy */
3130 rtl_hw_aspm_clkreq_enable(tp, false);
3131 rtl_ephy_init(tp, e_info_8168h_1);
3133 rtl_set_fifo_size(tp, 0x08, 0x10, 0x02, 0x06);
3134 rtl8168g_set_pause_thresholds(tp, 0x38, 0x48);
3136 rtl_set_def_aspm_entry_latency(tp);
3138 rtl_reset_packet_filter(tp);
3140 rtl_eri_set_bits(tp, 0xd4, 0x1f00);
3141 rtl_eri_set_bits(tp, 0xdc, 0x001c);
3143 rtl_eri_write(tp, 0x5f0, ERIAR_MASK_0011, 0x4f87);
3145 RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~RXDV_GATED_EN);
3147 rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
3148 rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
3150 rtl8168_config_eee_mac(tp);
3152 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
3153 RTL_W8(tp, MISC_1, RTL_R8(tp, MISC_1) & ~PFM_D3COLD_EN);
3155 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~TX_10M_PS_EN);
3157 rtl_eri_clear_bits(tp, 0x1b0, BIT(12));
3159 rtl_pcie_state_l2l3_disable(tp);
3161 rg_saw_cnt = phy_read_paged(tp->phydev, 0x0c42, 0x13) & 0x3fff;
3162 if (rg_saw_cnt > 0) {
3165 sw_cnt_1ms_ini = 16000000/rg_saw_cnt;
3166 sw_cnt_1ms_ini &= 0x0fff;
3167 r8168_mac_ocp_modify(tp, 0xd412, 0x0fff, sw_cnt_1ms_ini);
3170 r8168_mac_ocp_modify(tp, 0xe056, 0x00f0, 0x0070);
3171 r8168_mac_ocp_modify(tp, 0xe052, 0x6000, 0x8008);
3172 r8168_mac_ocp_modify(tp, 0xe0d6, 0x01ff, 0x017f);
3173 r8168_mac_ocp_modify(tp, 0xd420, 0x0fff, 0x047f);
3175 r8168_mac_ocp_write(tp, 0xe63e, 0x0001);
3176 r8168_mac_ocp_write(tp, 0xe63e, 0x0000);
3177 r8168_mac_ocp_write(tp, 0xc094, 0x0000);
3178 r8168_mac_ocp_write(tp, 0xc09e, 0x0000);
3180 rtl_hw_aspm_clkreq_enable(tp, true);
3183 static void rtl_hw_start_8168ep(struct rtl8169_private *tp)
3185 rtl8168ep_stop_cmac(tp);
3187 rtl_set_fifo_size(tp, 0x08, 0x10, 0x02, 0x06);
3188 rtl8168g_set_pause_thresholds(tp, 0x2f, 0x5f);
3190 rtl_set_def_aspm_entry_latency(tp);
3192 rtl_reset_packet_filter(tp);
3194 rtl_eri_set_bits(tp, 0xd4, 0x1f80);
3196 rtl_eri_write(tp, 0x5f0, ERIAR_MASK_0011, 0x4f87);
3198 RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~RXDV_GATED_EN);
3200 rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
3201 rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
3203 rtl8168_config_eee_mac(tp);
3205 rtl_w0w1_eri(tp, 0x2fc, 0x01, 0x06);
3207 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~TX_10M_PS_EN);
3209 rtl_pcie_state_l2l3_disable(tp);
3212 static void rtl_hw_start_8168ep_1(struct rtl8169_private *tp)
3214 static const struct ephy_info e_info_8168ep_1[] = {
3215 { 0x00, 0xffff, 0x10ab },
3216 { 0x06, 0xffff, 0xf030 },
3217 { 0x08, 0xffff, 0x2006 },
3218 { 0x0d, 0xffff, 0x1666 },
3219 { 0x0c, 0x3ff0, 0x0000 }
3222 /* disable aspm and clock request before access ephy */
3223 rtl_hw_aspm_clkreq_enable(tp, false);
3224 rtl_ephy_init(tp, e_info_8168ep_1);
3226 rtl_hw_start_8168ep(tp);
3228 rtl_hw_aspm_clkreq_enable(tp, true);
3231 static void rtl_hw_start_8168ep_2(struct rtl8169_private *tp)
3233 static const struct ephy_info e_info_8168ep_2[] = {
3234 { 0x00, 0xffff, 0x10a3 },
3235 { 0x19, 0xffff, 0xfc00 },
3236 { 0x1e, 0xffff, 0x20ea }
3239 /* disable aspm and clock request before access ephy */
3240 rtl_hw_aspm_clkreq_enable(tp, false);
3241 rtl_ephy_init(tp, e_info_8168ep_2);
3243 rtl_hw_start_8168ep(tp);
3245 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
3246 RTL_W8(tp, MISC_1, RTL_R8(tp, MISC_1) & ~PFM_D3COLD_EN);
3248 rtl_hw_aspm_clkreq_enable(tp, true);
3251 static void rtl_hw_start_8168ep_3(struct rtl8169_private *tp)
3253 static const struct ephy_info e_info_8168ep_3[] = {
3254 { 0x00, 0x0000, 0x0080 },
3255 { 0x0d, 0x0100, 0x0200 },
3256 { 0x19, 0x8021, 0x0000 },
3257 { 0x1e, 0x0000, 0x2000 },
3260 /* disable aspm and clock request before access ephy */
3261 rtl_hw_aspm_clkreq_enable(tp, false);
3262 rtl_ephy_init(tp, e_info_8168ep_3);
3264 rtl_hw_start_8168ep(tp);
3266 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
3267 RTL_W8(tp, MISC_1, RTL_R8(tp, MISC_1) & ~PFM_D3COLD_EN);
3269 r8168_mac_ocp_modify(tp, 0xd3e2, 0x0fff, 0x0271);
3270 r8168_mac_ocp_modify(tp, 0xd3e4, 0x00ff, 0x0000);
3271 r8168_mac_ocp_modify(tp, 0xe860, 0x0000, 0x0080);
3273 rtl_hw_aspm_clkreq_enable(tp, true);
3276 static void rtl_hw_start_8117(struct rtl8169_private *tp)
3278 static const struct ephy_info e_info_8117[] = {
3279 { 0x19, 0x0040, 0x1100 },
3280 { 0x59, 0x0040, 0x1100 },
3284 rtl8168ep_stop_cmac(tp);
3286 /* disable aspm and clock request before access ephy */
3287 rtl_hw_aspm_clkreq_enable(tp, false);
3288 rtl_ephy_init(tp, e_info_8117);
3290 rtl_set_fifo_size(tp, 0x08, 0x10, 0x02, 0x06);
3291 rtl8168g_set_pause_thresholds(tp, 0x2f, 0x5f);
3293 rtl_set_def_aspm_entry_latency(tp);
3295 rtl_reset_packet_filter(tp);
3297 rtl_eri_set_bits(tp, 0xd4, 0x1f90);
3299 rtl_eri_write(tp, 0x5f0, ERIAR_MASK_0011, 0x4f87);
3301 RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~RXDV_GATED_EN);
3303 rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
3304 rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
3306 rtl8168_config_eee_mac(tp);
3308 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
3309 RTL_W8(tp, MISC_1, RTL_R8(tp, MISC_1) & ~PFM_D3COLD_EN);
3311 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~TX_10M_PS_EN);
3313 rtl_eri_clear_bits(tp, 0x1b0, BIT(12));
3315 rtl_pcie_state_l2l3_disable(tp);
3317 rg_saw_cnt = phy_read_paged(tp->phydev, 0x0c42, 0x13) & 0x3fff;
3318 if (rg_saw_cnt > 0) {
3321 sw_cnt_1ms_ini = (16000000 / rg_saw_cnt) & 0x0fff;
3322 r8168_mac_ocp_modify(tp, 0xd412, 0x0fff, sw_cnt_1ms_ini);
3325 r8168_mac_ocp_modify(tp, 0xe056, 0x00f0, 0x0070);
3326 r8168_mac_ocp_write(tp, 0xea80, 0x0003);
3327 r8168_mac_ocp_modify(tp, 0xe052, 0x0000, 0x0009);
3328 r8168_mac_ocp_modify(tp, 0xd420, 0x0fff, 0x047f);
3330 r8168_mac_ocp_write(tp, 0xe63e, 0x0001);
3331 r8168_mac_ocp_write(tp, 0xe63e, 0x0000);
3332 r8168_mac_ocp_write(tp, 0xc094, 0x0000);
3333 r8168_mac_ocp_write(tp, 0xc09e, 0x0000);
3335 /* firmware is for MAC only */
3336 r8169_apply_firmware(tp);
3338 rtl_hw_aspm_clkreq_enable(tp, true);
3341 static void rtl_hw_start_8102e_1(struct rtl8169_private *tp)
3343 static const struct ephy_info e_info_8102e_1[] = {
3344 { 0x01, 0, 0x6e65 },
3345 { 0x02, 0, 0x091f },
3346 { 0x03, 0, 0xc2f9 },
3347 { 0x06, 0, 0xafb5 },
3348 { 0x07, 0, 0x0e00 },
3349 { 0x19, 0, 0xec80 },
3350 { 0x01, 0, 0x2e65 },
3355 rtl_set_def_aspm_entry_latency(tp);
3357 RTL_W8(tp, DBG_REG, FIX_NAK_1);
3360 LEDS1 | LEDS0 | Speed_down | MEMMAP | IOMAP | VPD | PMEnable);
3361 RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
3363 cfg1 = RTL_R8(tp, Config1);
3364 if ((cfg1 & LEDS0) && (cfg1 & LEDS1))
3365 RTL_W8(tp, Config1, cfg1 & ~LEDS0);
3367 rtl_ephy_init(tp, e_info_8102e_1);
3370 static void rtl_hw_start_8102e_2(struct rtl8169_private *tp)
3372 rtl_set_def_aspm_entry_latency(tp);
3374 RTL_W8(tp, Config1, MEMMAP | IOMAP | VPD | PMEnable);
3375 RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
3378 static void rtl_hw_start_8102e_3(struct rtl8169_private *tp)
3380 rtl_hw_start_8102e_2(tp);
3382 rtl_ephy_write(tp, 0x03, 0xc2f9);
3385 static void rtl_hw_start_8401(struct rtl8169_private *tp)
3387 static const struct ephy_info e_info_8401[] = {
3388 { 0x01, 0xffff, 0x6fe5 },
3389 { 0x03, 0xffff, 0x0599 },
3390 { 0x06, 0xffff, 0xaf25 },
3391 { 0x07, 0xffff, 0x8e68 },
3394 rtl_ephy_init(tp, e_info_8401);
3395 RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
3398 static void rtl_hw_start_8105e_1(struct rtl8169_private *tp)
3400 static const struct ephy_info e_info_8105e_1[] = {
3401 { 0x07, 0, 0x4000 },
3402 { 0x19, 0, 0x0200 },
3403 { 0x19, 0, 0x0020 },
3404 { 0x1e, 0, 0x2000 },
3405 { 0x03, 0, 0x0001 },
3406 { 0x19, 0, 0x0100 },
3407 { 0x19, 0, 0x0004 },
3411 /* Force LAN exit from ASPM if Rx/Tx are not idle */
3412 RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) | 0x002800);
3414 /* Disable Early Tally Counter */
3415 RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) & ~0x010000);
3417 RTL_W8(tp, MCU, RTL_R8(tp, MCU) | EN_NDP | EN_OOB_RESET);
3418 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) | PFM_EN);
3420 rtl_ephy_init(tp, e_info_8105e_1);
3422 rtl_pcie_state_l2l3_disable(tp);
3425 static void rtl_hw_start_8105e_2(struct rtl8169_private *tp)
3427 rtl_hw_start_8105e_1(tp);
3428 rtl_ephy_write(tp, 0x1e, rtl_ephy_read(tp, 0x1e) | 0x8000);
3431 static void rtl_hw_start_8402(struct rtl8169_private *tp)
3433 static const struct ephy_info e_info_8402[] = {
3434 { 0x19, 0xffff, 0xff64 },
3438 rtl_set_def_aspm_entry_latency(tp);
3440 /* Force LAN exit from ASPM if Rx/Tx are not idle */
3441 RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) | 0x002800);
3443 RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
3445 rtl_ephy_init(tp, e_info_8402);
3447 rtl_set_fifo_size(tp, 0x00, 0x00, 0x02, 0x06);
3448 rtl_reset_packet_filter(tp);
3449 rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
3450 rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
3451 rtl_w0w1_eri(tp, 0x0d4, 0x0e00, 0xff00);
3454 rtl_eri_write(tp, 0x1b0, ERIAR_MASK_0011, 0x0000);
3456 rtl_pcie_state_l2l3_disable(tp);
3459 static void rtl_hw_start_8106(struct rtl8169_private *tp)
3461 rtl_hw_aspm_clkreq_enable(tp, false);
3463 /* Force LAN exit from ASPM if Rx/Tx are not idle */
3464 RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) | 0x002800);
3466 RTL_W32(tp, MISC, (RTL_R32(tp, MISC) | DISABLE_LAN_EN) & ~EARLY_TALLY_EN);
3467 RTL_W8(tp, MCU, RTL_R8(tp, MCU) | EN_NDP | EN_OOB_RESET);
3468 RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
3470 rtl_eri_write(tp, 0x1d0, ERIAR_MASK_0011, 0x0000);
3473 rtl_eri_write(tp, 0x1b0, ERIAR_MASK_0011, 0x0000);
3475 rtl_pcie_state_l2l3_disable(tp);
3476 rtl_hw_aspm_clkreq_enable(tp, true);
3479 DECLARE_RTL_COND(rtl_mac_ocp_e00e_cond)
3481 return r8168_mac_ocp_read(tp, 0xe00e) & BIT(13);
3484 static void rtl_hw_start_8125_common(struct rtl8169_private *tp)
3486 rtl_pcie_state_l2l3_disable(tp);
3488 RTL_W16(tp, 0x382, 0x221b);
3489 RTL_W8(tp, 0x4500, 0);
3490 RTL_W16(tp, 0x4800, 0);
3493 r8168_mac_ocp_modify(tp, 0xd40a, 0x0010, 0x0000);
3495 RTL_W8(tp, Config1, RTL_R8(tp, Config1) & ~0x10);
3497 r8168_mac_ocp_write(tp, 0xc140, 0xffff);
3498 r8168_mac_ocp_write(tp, 0xc142, 0xffff);
3500 r8168_mac_ocp_modify(tp, 0xd3e2, 0x0fff, 0x03a9);
3501 r8168_mac_ocp_modify(tp, 0xd3e4, 0x00ff, 0x0000);
3502 r8168_mac_ocp_modify(tp, 0xe860, 0x0000, 0x0080);
3504 /* disable new tx descriptor format */
3505 r8168_mac_ocp_modify(tp, 0xeb58, 0x0001, 0x0000);
3507 if (tp->mac_version == RTL_GIGA_MAC_VER_63)
3508 r8168_mac_ocp_modify(tp, 0xe614, 0x0700, 0x0200);
3510 r8168_mac_ocp_modify(tp, 0xe614, 0x0700, 0x0400);
3512 if (tp->mac_version == RTL_GIGA_MAC_VER_63)
3513 r8168_mac_ocp_modify(tp, 0xe63e, 0x0c30, 0x0000);
3515 r8168_mac_ocp_modify(tp, 0xe63e, 0x0c30, 0x0020);
3517 r8168_mac_ocp_modify(tp, 0xc0b4, 0x0000, 0x000c);
3518 r8168_mac_ocp_modify(tp, 0xeb6a, 0x00ff, 0x0033);
3519 r8168_mac_ocp_modify(tp, 0xeb50, 0x03e0, 0x0040);
3520 r8168_mac_ocp_modify(tp, 0xe056, 0x00f0, 0x0030);
3521 r8168_mac_ocp_modify(tp, 0xe040, 0x1000, 0x0000);
3522 r8168_mac_ocp_modify(tp, 0xea1c, 0x0003, 0x0001);
3523 r8168_mac_ocp_modify(tp, 0xe0c0, 0x4f0f, 0x4403);
3524 r8168_mac_ocp_modify(tp, 0xe052, 0x0080, 0x0068);
3525 r8168_mac_ocp_modify(tp, 0xc0ac, 0x0080, 0x1f00);
3526 r8168_mac_ocp_modify(tp, 0xd430, 0x0fff, 0x047f);
3528 r8168_mac_ocp_modify(tp, 0xea1c, 0x0004, 0x0000);
3529 r8168_mac_ocp_modify(tp, 0xeb54, 0x0000, 0x0001);
3531 r8168_mac_ocp_modify(tp, 0xeb54, 0x0001, 0x0000);
3532 RTL_W16(tp, 0x1880, RTL_R16(tp, 0x1880) & ~0x0030);
3534 r8168_mac_ocp_write(tp, 0xe098, 0xc302);
3536 rtl_loop_wait_low(tp, &rtl_mac_ocp_e00e_cond, 1000, 10);
3538 if (tp->mac_version == RTL_GIGA_MAC_VER_63)
3539 rtl8125b_config_eee_mac(tp);
3541 rtl8125a_config_eee_mac(tp);
3543 RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~RXDV_GATED_EN);
3547 static void rtl_hw_start_8125a_1(struct rtl8169_private *tp)
3549 static const struct ephy_info e_info_8125a_1[] = {
3550 { 0x01, 0xffff, 0xa812 },
3551 { 0x09, 0xffff, 0x520c },
3552 { 0x04, 0xffff, 0xd000 },
3553 { 0x0d, 0xffff, 0xf702 },
3554 { 0x0a, 0xffff, 0x8653 },
3555 { 0x06, 0xffff, 0x001e },
3556 { 0x08, 0xffff, 0x3595 },
3557 { 0x20, 0xffff, 0x9455 },
3558 { 0x21, 0xffff, 0x99ff },
3559 { 0x02, 0xffff, 0x6046 },
3560 { 0x29, 0xffff, 0xfe00 },
3561 { 0x23, 0xffff, 0xab62 },
3563 { 0x41, 0xffff, 0xa80c },
3564 { 0x49, 0xffff, 0x520c },
3565 { 0x44, 0xffff, 0xd000 },
3566 { 0x4d, 0xffff, 0xf702 },
3567 { 0x4a, 0xffff, 0x8653 },
3568 { 0x46, 0xffff, 0x001e },
3569 { 0x48, 0xffff, 0x3595 },
3570 { 0x60, 0xffff, 0x9455 },
3571 { 0x61, 0xffff, 0x99ff },
3572 { 0x42, 0xffff, 0x6046 },
3573 { 0x69, 0xffff, 0xfe00 },
3574 { 0x63, 0xffff, 0xab62 },
3577 rtl_set_def_aspm_entry_latency(tp);
3579 /* disable aspm and clock request before access ephy */
3580 rtl_hw_aspm_clkreq_enable(tp, false);
3581 rtl_ephy_init(tp, e_info_8125a_1);
3583 rtl_hw_start_8125_common(tp);
3584 rtl_hw_aspm_clkreq_enable(tp, true);
3587 static void rtl_hw_start_8125a_2(struct rtl8169_private *tp)
3589 static const struct ephy_info e_info_8125a_2[] = {
3590 { 0x04, 0xffff, 0xd000 },
3591 { 0x0a, 0xffff, 0x8653 },
3592 { 0x23, 0xffff, 0xab66 },
3593 { 0x20, 0xffff, 0x9455 },
3594 { 0x21, 0xffff, 0x99ff },
3595 { 0x29, 0xffff, 0xfe04 },
3597 { 0x44, 0xffff, 0xd000 },
3598 { 0x4a, 0xffff, 0x8653 },
3599 { 0x63, 0xffff, 0xab66 },
3600 { 0x60, 0xffff, 0x9455 },
3601 { 0x61, 0xffff, 0x99ff },
3602 { 0x69, 0xffff, 0xfe04 },
3605 rtl_set_def_aspm_entry_latency(tp);
3607 /* disable aspm and clock request before access ephy */
3608 rtl_hw_aspm_clkreq_enable(tp, false);
3609 rtl_ephy_init(tp, e_info_8125a_2);
3611 rtl_hw_start_8125_common(tp);
3612 rtl_hw_aspm_clkreq_enable(tp, true);
3615 static void rtl_hw_start_8125b(struct rtl8169_private *tp)
3617 static const struct ephy_info e_info_8125b[] = {
3618 { 0x0b, 0xffff, 0xa908 },
3619 { 0x1e, 0xffff, 0x20eb },
3620 { 0x4b, 0xffff, 0xa908 },
3621 { 0x5e, 0xffff, 0x20eb },
3622 { 0x22, 0x0030, 0x0020 },
3623 { 0x62, 0x0030, 0x0020 },
3626 rtl_set_def_aspm_entry_latency(tp);
3627 rtl_hw_aspm_clkreq_enable(tp, false);
3629 rtl_ephy_init(tp, e_info_8125b);
3630 rtl_hw_start_8125_common(tp);
3632 rtl_hw_aspm_clkreq_enable(tp, true);
3635 static void rtl_hw_config(struct rtl8169_private *tp)
3637 static const rtl_generic_fct hw_configs[] = {
3638 [RTL_GIGA_MAC_VER_07] = rtl_hw_start_8102e_1,
3639 [RTL_GIGA_MAC_VER_08] = rtl_hw_start_8102e_3,
3640 [RTL_GIGA_MAC_VER_09] = rtl_hw_start_8102e_2,
3641 [RTL_GIGA_MAC_VER_10] = NULL,
3642 [RTL_GIGA_MAC_VER_11] = rtl_hw_start_8168b,
3643 [RTL_GIGA_MAC_VER_12] = rtl_hw_start_8168b,
3644 [RTL_GIGA_MAC_VER_13] = NULL,
3645 [RTL_GIGA_MAC_VER_14] = rtl_hw_start_8401,
3646 [RTL_GIGA_MAC_VER_16] = NULL,
3647 [RTL_GIGA_MAC_VER_17] = rtl_hw_start_8168b,
3648 [RTL_GIGA_MAC_VER_18] = rtl_hw_start_8168cp_1,
3649 [RTL_GIGA_MAC_VER_19] = rtl_hw_start_8168c_1,
3650 [RTL_GIGA_MAC_VER_20] = rtl_hw_start_8168c_2,
3651 [RTL_GIGA_MAC_VER_21] = rtl_hw_start_8168c_2,
3652 [RTL_GIGA_MAC_VER_22] = rtl_hw_start_8168c_4,
3653 [RTL_GIGA_MAC_VER_23] = rtl_hw_start_8168cp_2,
3654 [RTL_GIGA_MAC_VER_24] = rtl_hw_start_8168cp_3,
3655 [RTL_GIGA_MAC_VER_25] = rtl_hw_start_8168d,
3656 [RTL_GIGA_MAC_VER_26] = rtl_hw_start_8168d,
3657 [RTL_GIGA_MAC_VER_27] = rtl_hw_start_8168d,
3658 [RTL_GIGA_MAC_VER_28] = rtl_hw_start_8168d_4,
3659 [RTL_GIGA_MAC_VER_29] = rtl_hw_start_8105e_1,
3660 [RTL_GIGA_MAC_VER_30] = rtl_hw_start_8105e_2,
3661 [RTL_GIGA_MAC_VER_31] = rtl_hw_start_8168d,
3662 [RTL_GIGA_MAC_VER_32] = rtl_hw_start_8168e_1,
3663 [RTL_GIGA_MAC_VER_33] = rtl_hw_start_8168e_1,
3664 [RTL_GIGA_MAC_VER_34] = rtl_hw_start_8168e_2,
3665 [RTL_GIGA_MAC_VER_35] = rtl_hw_start_8168f_1,
3666 [RTL_GIGA_MAC_VER_36] = rtl_hw_start_8168f_1,
3667 [RTL_GIGA_MAC_VER_37] = rtl_hw_start_8402,
3668 [RTL_GIGA_MAC_VER_38] = rtl_hw_start_8411,
3669 [RTL_GIGA_MAC_VER_39] = rtl_hw_start_8106,
3670 [RTL_GIGA_MAC_VER_40] = rtl_hw_start_8168g_1,
3671 [RTL_GIGA_MAC_VER_41] = rtl_hw_start_8168g_1,
3672 [RTL_GIGA_MAC_VER_42] = rtl_hw_start_8168g_2,
3673 [RTL_GIGA_MAC_VER_43] = rtl_hw_start_8168g_2,
3674 [RTL_GIGA_MAC_VER_44] = rtl_hw_start_8411_2,
3675 [RTL_GIGA_MAC_VER_45] = rtl_hw_start_8168h_1,
3676 [RTL_GIGA_MAC_VER_46] = rtl_hw_start_8168h_1,
3677 [RTL_GIGA_MAC_VER_47] = rtl_hw_start_8168h_1,
3678 [RTL_GIGA_MAC_VER_48] = rtl_hw_start_8168h_1,
3679 [RTL_GIGA_MAC_VER_49] = rtl_hw_start_8168ep_1,
3680 [RTL_GIGA_MAC_VER_50] = rtl_hw_start_8168ep_2,
3681 [RTL_GIGA_MAC_VER_51] = rtl_hw_start_8168ep_3,
3682 [RTL_GIGA_MAC_VER_52] = rtl_hw_start_8117,
3683 [RTL_GIGA_MAC_VER_53] = rtl_hw_start_8117,
3684 [RTL_GIGA_MAC_VER_60] = rtl_hw_start_8125a_1,
3685 [RTL_GIGA_MAC_VER_61] = rtl_hw_start_8125a_2,
3686 [RTL_GIGA_MAC_VER_63] = rtl_hw_start_8125b,
3689 if (hw_configs[tp->mac_version])
3690 hw_configs[tp->mac_version](tp);
3693 static void rtl_hw_start_8125(struct rtl8169_private *tp)
3697 /* disable interrupt coalescing */
3698 for (i = 0xa00; i < 0xb00; i += 4)
3704 static void rtl_hw_start_8168(struct rtl8169_private *tp)
3706 if (rtl_is_8168evl_up(tp))
3707 RTL_W8(tp, MaxTxPacketSize, EarlySize);
3709 RTL_W8(tp, MaxTxPacketSize, TxPacketMax);
3713 /* disable interrupt coalescing */
3714 RTL_W16(tp, IntrMitigate, 0x0000);
3717 static void rtl_hw_start_8169(struct rtl8169_private *tp)
3719 RTL_W8(tp, EarlyTxThres, NoEarlyTx);
3721 tp->cp_cmd |= PCIMulRW;
3723 if (tp->mac_version == RTL_GIGA_MAC_VER_02 ||
3724 tp->mac_version == RTL_GIGA_MAC_VER_03)
3725 tp->cp_cmd |= EnAnaPLL;
3727 RTL_W16(tp, CPlusCmd, tp->cp_cmd);
3729 rtl8169_set_magic_reg(tp);
3731 /* disable interrupt coalescing */
3732 RTL_W16(tp, IntrMitigate, 0x0000);
3735 static void rtl_hw_start(struct rtl8169_private *tp)
3737 rtl_unlock_config_regs(tp);
3739 RTL_W16(tp, CPlusCmd, tp->cp_cmd);
3741 if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
3742 rtl_hw_start_8169(tp);
3743 else if (rtl_is_8125(tp))
3744 rtl_hw_start_8125(tp);
3746 rtl_hw_start_8168(tp);
3748 rtl_set_rx_max_size(tp);
3749 rtl_set_rx_tx_desc_registers(tp);
3750 rtl_lock_config_regs(tp);
3752 rtl_jumbo_config(tp);
3754 /* Initially a 10 us delay. Turned it into a PCI commit. - FR */
3757 RTL_W8(tp, ChipCmd, CmdTxEnb | CmdRxEnb);
3759 rtl_set_tx_config_registers(tp);
3760 rtl_set_rx_config_features(tp, tp->dev->features);
3761 rtl_set_rx_mode(tp->dev);
3765 static int rtl8169_change_mtu(struct net_device *dev, int new_mtu)
3767 struct rtl8169_private *tp = netdev_priv(dev);
3770 netdev_update_features(dev);
3771 rtl_jumbo_config(tp);
3773 switch (tp->mac_version) {
3774 case RTL_GIGA_MAC_VER_61:
3775 case RTL_GIGA_MAC_VER_63:
3776 rtl8125_set_eee_txidle_timer(tp);
3785 static void rtl8169_mark_to_asic(struct RxDesc *desc)
3787 u32 eor = le32_to_cpu(desc->opts1) & RingEnd;
3790 /* Force memory writes to complete before releasing descriptor */
3792 WRITE_ONCE(desc->opts1, cpu_to_le32(DescOwn | eor | R8169_RX_BUF_SIZE));
3795 static struct page *rtl8169_alloc_rx_data(struct rtl8169_private *tp,
3796 struct RxDesc *desc)
3798 struct device *d = tp_to_dev(tp);
3799 int node = dev_to_node(d);
3803 data = alloc_pages_node(node, GFP_KERNEL, get_order(R8169_RX_BUF_SIZE));
3807 mapping = dma_map_page(d, data, 0, R8169_RX_BUF_SIZE, DMA_FROM_DEVICE);
3808 if (unlikely(dma_mapping_error(d, mapping))) {
3809 netdev_err(tp->dev, "Failed to map RX DMA!\n");
3810 __free_pages(data, get_order(R8169_RX_BUF_SIZE));
3814 desc->addr = cpu_to_le64(mapping);
3815 rtl8169_mark_to_asic(desc);
3820 static void rtl8169_rx_clear(struct rtl8169_private *tp)
3824 for (i = 0; i < NUM_RX_DESC && tp->Rx_databuff[i]; i++) {
3825 dma_unmap_page(tp_to_dev(tp),
3826 le64_to_cpu(tp->RxDescArray[i].addr),
3827 R8169_RX_BUF_SIZE, DMA_FROM_DEVICE);
3828 __free_pages(tp->Rx_databuff[i], get_order(R8169_RX_BUF_SIZE));
3829 tp->Rx_databuff[i] = NULL;
3830 tp->RxDescArray[i].addr = 0;
3831 tp->RxDescArray[i].opts1 = 0;
3835 static int rtl8169_rx_fill(struct rtl8169_private *tp)
3839 for (i = 0; i < NUM_RX_DESC; i++) {
3842 data = rtl8169_alloc_rx_data(tp, tp->RxDescArray + i);
3844 rtl8169_rx_clear(tp);
3847 tp->Rx_databuff[i] = data;
3850 /* mark as last descriptor in the ring */
3851 tp->RxDescArray[NUM_RX_DESC - 1].opts1 |= cpu_to_le32(RingEnd);
3856 static int rtl8169_init_ring(struct rtl8169_private *tp)
3858 rtl8169_init_ring_indexes(tp);
3860 memset(tp->tx_skb, 0, sizeof(tp->tx_skb));
3861 memset(tp->Rx_databuff, 0, sizeof(tp->Rx_databuff));
3863 return rtl8169_rx_fill(tp);
3866 static void rtl8169_unmap_tx_skb(struct rtl8169_private *tp, unsigned int entry)
3868 struct ring_info *tx_skb = tp->tx_skb + entry;
3869 struct TxDesc *desc = tp->TxDescArray + entry;
3871 dma_unmap_single(tp_to_dev(tp), le64_to_cpu(desc->addr), tx_skb->len,
3873 memset(desc, 0, sizeof(*desc));
3874 memset(tx_skb, 0, sizeof(*tx_skb));
3877 static void rtl8169_tx_clear_range(struct rtl8169_private *tp, u32 start,
3882 for (i = 0; i < n; i++) {
3883 unsigned int entry = (start + i) % NUM_TX_DESC;
3884 struct ring_info *tx_skb = tp->tx_skb + entry;
3885 unsigned int len = tx_skb->len;
3888 struct sk_buff *skb = tx_skb->skb;
3890 rtl8169_unmap_tx_skb(tp, entry);
3892 dev_consume_skb_any(skb);
3897 static void rtl8169_tx_clear(struct rtl8169_private *tp)
3899 rtl8169_tx_clear_range(tp, tp->dirty_tx, NUM_TX_DESC);
3900 netdev_reset_queue(tp->dev);
3903 static void rtl8169_cleanup(struct rtl8169_private *tp, bool going_down)
3905 napi_disable(&tp->napi);
3907 /* Give a racing hard_start_xmit a few cycles to complete. */
3910 /* Disable interrupts */
3911 rtl8169_irq_mask_and_ack(tp);
3915 if (going_down && tp->dev->wol_enabled)
3918 switch (tp->mac_version) {
3919 case RTL_GIGA_MAC_VER_27:
3920 case RTL_GIGA_MAC_VER_28:
3921 case RTL_GIGA_MAC_VER_31:
3922 rtl_loop_wait_low(tp, &rtl_npq_cond, 20, 2000);
3924 case RTL_GIGA_MAC_VER_34 ... RTL_GIGA_MAC_VER_38:
3925 RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) | StopReq);
3926 rtl_loop_wait_high(tp, &rtl_txcfg_empty_cond, 100, 666);
3928 case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_63:
3929 rtl_enable_rxdvgate(tp);
3933 RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) | StopReq);
3940 rtl8169_tx_clear(tp);
3941 rtl8169_init_ring_indexes(tp);
3944 static void rtl_reset_work(struct rtl8169_private *tp)
3948 netif_stop_queue(tp->dev);
3950 rtl8169_cleanup(tp, false);
3952 for (i = 0; i < NUM_RX_DESC; i++)
3953 rtl8169_mark_to_asic(tp->RxDescArray + i);
3955 napi_enable(&tp->napi);
3959 static void rtl8169_tx_timeout(struct net_device *dev, unsigned int txqueue)
3961 struct rtl8169_private *tp = netdev_priv(dev);
3963 rtl_schedule_task(tp, RTL_FLAG_TASK_RESET_PENDING);
3966 static int rtl8169_tx_map(struct rtl8169_private *tp, const u32 *opts, u32 len,
3967 void *addr, unsigned int entry, bool desc_own)
3969 struct TxDesc *txd = tp->TxDescArray + entry;
3970 struct device *d = tp_to_dev(tp);
3975 mapping = dma_map_single(d, addr, len, DMA_TO_DEVICE);
3976 ret = dma_mapping_error(d, mapping);
3977 if (unlikely(ret)) {
3978 if (net_ratelimit())
3979 netdev_err(tp->dev, "Failed to map TX data!\n");
3983 txd->addr = cpu_to_le64(mapping);
3984 txd->opts2 = cpu_to_le32(opts[1]);
3986 opts1 = opts[0] | len;
3987 if (entry == NUM_TX_DESC - 1)
3991 txd->opts1 = cpu_to_le32(opts1);
3993 tp->tx_skb[entry].len = len;
3998 static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb,
3999 const u32 *opts, unsigned int entry)
4001 struct skb_shared_info *info = skb_shinfo(skb);
4002 unsigned int cur_frag;
4004 for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) {
4005 const skb_frag_t *frag = info->frags + cur_frag;
4006 void *addr = skb_frag_address(frag);
4007 u32 len = skb_frag_size(frag);
4009 entry = (entry + 1) % NUM_TX_DESC;
4011 if (unlikely(rtl8169_tx_map(tp, opts, len, addr, entry, true)))
4018 rtl8169_tx_clear_range(tp, tp->cur_tx + 1, cur_frag);
4022 static bool rtl_skb_is_udp(struct sk_buff *skb)
4024 int no = skb_network_offset(skb);
4025 struct ipv6hdr *i6h, _i6h;
4026 struct iphdr *ih, _ih;
4028 switch (vlan_get_protocol(skb)) {
4029 case htons(ETH_P_IP):
4030 ih = skb_header_pointer(skb, no, sizeof(_ih), &_ih);
4031 return ih && ih->protocol == IPPROTO_UDP;
4032 case htons(ETH_P_IPV6):
4033 i6h = skb_header_pointer(skb, no, sizeof(_i6h), &_i6h);
4034 return i6h && i6h->nexthdr == IPPROTO_UDP;
4040 #define RTL_MIN_PATCH_LEN 47
4042 /* see rtl8125_get_patch_pad_len() in r8125 vendor driver */
4043 static unsigned int rtl8125_quirk_udp_padto(struct rtl8169_private *tp,
4044 struct sk_buff *skb)
4046 unsigned int padto = 0, len = skb->len;
4048 if (rtl_is_8125(tp) && len < 128 + RTL_MIN_PATCH_LEN &&
4049 rtl_skb_is_udp(skb) && skb_transport_header_was_set(skb)) {
4050 unsigned int trans_data_len = skb_tail_pointer(skb) -
4051 skb_transport_header(skb);
4053 if (trans_data_len >= offsetof(struct udphdr, len) &&
4054 trans_data_len < RTL_MIN_PATCH_LEN) {
4055 u16 dest = ntohs(udp_hdr(skb)->dest);
4057 /* dest is a standard PTP port */
4058 if (dest == 319 || dest == 320)
4059 padto = len + RTL_MIN_PATCH_LEN - trans_data_len;
4062 if (trans_data_len < sizeof(struct udphdr))
4063 padto = max_t(unsigned int, padto,
4064 len + sizeof(struct udphdr) - trans_data_len);
4070 static unsigned int rtl_quirk_packet_padto(struct rtl8169_private *tp,
4071 struct sk_buff *skb)
4075 padto = rtl8125_quirk_udp_padto(tp, skb);
4077 switch (tp->mac_version) {
4078 case RTL_GIGA_MAC_VER_34:
4079 case RTL_GIGA_MAC_VER_60:
4080 case RTL_GIGA_MAC_VER_61:
4081 case RTL_GIGA_MAC_VER_63:
4082 padto = max_t(unsigned int, padto, ETH_ZLEN);
4090 static void rtl8169_tso_csum_v1(struct sk_buff *skb, u32 *opts)
4092 u32 mss = skb_shinfo(skb)->gso_size;
4096 opts[0] |= mss << TD0_MSS_SHIFT;
4097 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
4098 const struct iphdr *ip = ip_hdr(skb);
4100 if (ip->protocol == IPPROTO_TCP)
4101 opts[0] |= TD0_IP_CS | TD0_TCP_CS;
4102 else if (ip->protocol == IPPROTO_UDP)
4103 opts[0] |= TD0_IP_CS | TD0_UDP_CS;
4109 static bool rtl8169_tso_csum_v2(struct rtl8169_private *tp,
4110 struct sk_buff *skb, u32 *opts)
4112 u32 transport_offset = (u32)skb_transport_offset(skb);
4113 struct skb_shared_info *shinfo = skb_shinfo(skb);
4114 u32 mss = shinfo->gso_size;
4117 if (shinfo->gso_type & SKB_GSO_TCPV4) {
4118 opts[0] |= TD1_GTSENV4;
4119 } else if (shinfo->gso_type & SKB_GSO_TCPV6) {
4120 if (skb_cow_head(skb, 0))
4123 tcp_v6_gso_csum_prep(skb);
4124 opts[0] |= TD1_GTSENV6;
4129 opts[0] |= transport_offset << GTTCPHO_SHIFT;
4130 opts[1] |= mss << TD1_MSS_SHIFT;
4131 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
4134 switch (vlan_get_protocol(skb)) {
4135 case htons(ETH_P_IP):
4136 opts[1] |= TD1_IPv4_CS;
4137 ip_protocol = ip_hdr(skb)->protocol;
4140 case htons(ETH_P_IPV6):
4141 opts[1] |= TD1_IPv6_CS;
4142 ip_protocol = ipv6_hdr(skb)->nexthdr;
4146 ip_protocol = IPPROTO_RAW;
4150 if (ip_protocol == IPPROTO_TCP)
4151 opts[1] |= TD1_TCP_CS;
4152 else if (ip_protocol == IPPROTO_UDP)
4153 opts[1] |= TD1_UDP_CS;
4157 opts[1] |= transport_offset << TCPHO_SHIFT;
4159 unsigned int padto = rtl_quirk_packet_padto(tp, skb);
4161 /* skb_padto would free the skb on error */
4162 return !__skb_put_padto(skb, padto, false);
4168 static bool rtl_tx_slots_avail(struct rtl8169_private *tp)
4170 unsigned int slots_avail = READ_ONCE(tp->dirty_tx) + NUM_TX_DESC
4171 - READ_ONCE(tp->cur_tx);
4173 /* A skbuff with nr_frags needs nr_frags+1 entries in the tx queue */
4174 return slots_avail > MAX_SKB_FRAGS;
4177 /* Versions RTL8102e and from RTL8168c onwards support csum_v2 */
4178 static bool rtl_chip_supports_csum_v2(struct rtl8169_private *tp)
4180 switch (tp->mac_version) {
4181 case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
4182 case RTL_GIGA_MAC_VER_10 ... RTL_GIGA_MAC_VER_17:
4189 static void rtl8169_doorbell(struct rtl8169_private *tp)
4191 if (rtl_is_8125(tp))
4192 RTL_W16(tp, TxPoll_8125, BIT(0));
4194 RTL_W8(tp, TxPoll, NPQ);
4197 static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
4198 struct net_device *dev)
4200 unsigned int frags = skb_shinfo(skb)->nr_frags;
4201 struct rtl8169_private *tp = netdev_priv(dev);
4202 unsigned int entry = tp->cur_tx % NUM_TX_DESC;
4203 struct TxDesc *txd_first, *txd_last;
4204 bool stop_queue, door_bell;
4207 if (unlikely(!rtl_tx_slots_avail(tp))) {
4208 if (net_ratelimit())
4209 netdev_err(dev, "BUG! Tx Ring full when queue awake!\n");
4213 opts[1] = rtl8169_tx_vlan_tag(skb);
4216 if (!rtl_chip_supports_csum_v2(tp))
4217 rtl8169_tso_csum_v1(skb, opts);
4218 else if (!rtl8169_tso_csum_v2(tp, skb, opts))
4221 if (unlikely(rtl8169_tx_map(tp, opts, skb_headlen(skb), skb->data,
4225 txd_first = tp->TxDescArray + entry;
4228 if (rtl8169_xmit_frags(tp, skb, opts, entry))
4230 entry = (entry + frags) % NUM_TX_DESC;
4233 txd_last = tp->TxDescArray + entry;
4234 txd_last->opts1 |= cpu_to_le32(LastFrag);
4235 tp->tx_skb[entry].skb = skb;
4237 skb_tx_timestamp(skb);
4239 /* Force memory writes to complete before releasing descriptor */
4242 door_bell = __netdev_sent_queue(dev, skb->len, netdev_xmit_more());
4244 txd_first->opts1 |= cpu_to_le32(DescOwn | FirstFrag);
4246 /* rtl_tx needs to see descriptor changes before updated tp->cur_tx */
4249 WRITE_ONCE(tp->cur_tx, tp->cur_tx + frags + 1);
4251 stop_queue = !rtl_tx_slots_avail(tp);
4252 if (unlikely(stop_queue)) {
4253 /* Avoid wrongly optimistic queue wake-up: rtl_tx thread must
4254 * not miss a ring update when it notices a stopped queue.
4257 netif_stop_queue(dev);
4258 /* Sync with rtl_tx:
4259 * - publish queue status and cur_tx ring index (write barrier)
4260 * - refresh dirty_tx ring index (read barrier).
4261 * May the current thread have a pessimistic view of the ring
4262 * status and forget to wake up queue, a racing rtl_tx thread
4265 smp_mb__after_atomic();
4266 if (rtl_tx_slots_avail(tp))
4267 netif_start_queue(dev);
4272 rtl8169_doorbell(tp);
4274 return NETDEV_TX_OK;
4277 rtl8169_unmap_tx_skb(tp, entry);
4279 dev_kfree_skb_any(skb);
4280 dev->stats.tx_dropped++;
4281 return NETDEV_TX_OK;
4284 netif_stop_queue(dev);
4285 dev->stats.tx_dropped++;
4286 return NETDEV_TX_BUSY;
4289 static unsigned int rtl_last_frag_len(struct sk_buff *skb)
4291 struct skb_shared_info *info = skb_shinfo(skb);
4292 unsigned int nr_frags = info->nr_frags;
4297 return skb_frag_size(info->frags + nr_frags - 1);
4300 /* Workaround for hw issues with TSO on RTL8168evl */
4301 static netdev_features_t rtl8168evl_fix_tso(struct sk_buff *skb,
4302 netdev_features_t features)
4304 /* IPv4 header has options field */
4305 if (vlan_get_protocol(skb) == htons(ETH_P_IP) &&
4306 ip_hdrlen(skb) > sizeof(struct iphdr))
4307 features &= ~NETIF_F_ALL_TSO;
4309 /* IPv4 TCP header has options field */
4310 else if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV4 &&
4311 tcp_hdrlen(skb) > sizeof(struct tcphdr))
4312 features &= ~NETIF_F_ALL_TSO;
4314 else if (rtl_last_frag_len(skb) <= 6)
4315 features &= ~NETIF_F_ALL_TSO;
4320 static netdev_features_t rtl8169_features_check(struct sk_buff *skb,
4321 struct net_device *dev,
4322 netdev_features_t features)
4324 int transport_offset = skb_transport_offset(skb);
4325 struct rtl8169_private *tp = netdev_priv(dev);
4327 if (skb_is_gso(skb)) {
4328 if (tp->mac_version == RTL_GIGA_MAC_VER_34)
4329 features = rtl8168evl_fix_tso(skb, features);
4331 if (transport_offset > GTTCPHO_MAX &&
4332 rtl_chip_supports_csum_v2(tp))
4333 features &= ~NETIF_F_ALL_TSO;
4334 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
4335 /* work around hw bug on some chip versions */
4336 if (skb->len < ETH_ZLEN)
4337 features &= ~NETIF_F_CSUM_MASK;
4339 if (rtl_quirk_packet_padto(tp, skb))
4340 features &= ~NETIF_F_CSUM_MASK;
4342 if (transport_offset > TCPHO_MAX &&
4343 rtl_chip_supports_csum_v2(tp))
4344 features &= ~NETIF_F_CSUM_MASK;
4347 return vlan_features_check(skb, features);
4350 static void rtl8169_pcierr_interrupt(struct net_device *dev)
4352 struct rtl8169_private *tp = netdev_priv(dev);
4353 struct pci_dev *pdev = tp->pci_dev;
4354 int pci_status_errs;
4357 pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
4359 pci_status_errs = pci_status_get_and_clear_errors(pdev);
4361 if (net_ratelimit())
4362 netdev_err(dev, "PCI error (cmd = 0x%04x, status_errs = 0x%04x)\n",
4363 pci_cmd, pci_status_errs);
4365 * The recovery sequence below admits a very elaborated explanation:
4366 * - it seems to work;
4367 * - I did not see what else could be done;
4368 * - it makes iop3xx happy.
4370 * Feel free to adjust to your needs.
4372 if (pdev->broken_parity_status)
4373 pci_cmd &= ~PCI_COMMAND_PARITY;
4375 pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY;
4377 pci_write_config_word(pdev, PCI_COMMAND, pci_cmd);
4379 rtl_schedule_task(tp, RTL_FLAG_TASK_RESET_PENDING);
4382 static void rtl_tx(struct net_device *dev, struct rtl8169_private *tp,
4385 unsigned int dirty_tx, bytes_compl = 0, pkts_compl = 0;
4386 struct sk_buff *skb;
4388 dirty_tx = tp->dirty_tx;
4390 while (READ_ONCE(tp->cur_tx) != dirty_tx) {
4391 unsigned int entry = dirty_tx % NUM_TX_DESC;
4394 status = le32_to_cpu(tp->TxDescArray[entry].opts1);
4395 if (status & DescOwn)
4398 skb = tp->tx_skb[entry].skb;
4399 rtl8169_unmap_tx_skb(tp, entry);
4403 bytes_compl += skb->len;
4404 napi_consume_skb(skb, budget);
4409 if (tp->dirty_tx != dirty_tx) {
4410 netdev_completed_queue(dev, pkts_compl, bytes_compl);
4411 dev_sw_netstats_tx_add(dev, pkts_compl, bytes_compl);
4413 /* Sync with rtl8169_start_xmit:
4414 * - publish dirty_tx ring index (write barrier)
4415 * - refresh cur_tx ring index and queue status (read barrier)
4416 * May the current thread miss the stopped queue condition,
4417 * a racing xmit thread can only have a right view of the
4420 smp_store_mb(tp->dirty_tx, dirty_tx);
4421 if (netif_queue_stopped(dev) && rtl_tx_slots_avail(tp))
4422 netif_wake_queue(dev);
4424 * 8168 hack: TxPoll requests are lost when the Tx packets are
4425 * too close. Let's kick an extra TxPoll request when a burst
4426 * of start_xmit activity is detected (if it is not detected,
4427 * it is slow enough). -- FR
4428 * If skb is NULL then we come here again once a tx irq is
4429 * triggered after the last fragment is marked transmitted.
4431 if (tp->cur_tx != dirty_tx && skb)
4432 rtl8169_doorbell(tp);
4436 static inline int rtl8169_fragmented_frame(u32 status)
4438 return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag);
4441 static inline void rtl8169_rx_csum(struct sk_buff *skb, u32 opts1)
4443 u32 status = opts1 & (RxProtoMask | RxCSFailMask);
4445 if (status == RxProtoTCP || status == RxProtoUDP)
4446 skb->ip_summed = CHECKSUM_UNNECESSARY;
4448 skb_checksum_none_assert(skb);
4451 static int rtl_rx(struct net_device *dev, struct rtl8169_private *tp, int budget)
4453 struct device *d = tp_to_dev(tp);
4456 for (count = 0; count < budget; count++, tp->cur_rx++) {
4457 unsigned int pkt_size, entry = tp->cur_rx % NUM_RX_DESC;
4458 struct RxDesc *desc = tp->RxDescArray + entry;
4459 struct sk_buff *skb;
4464 status = le32_to_cpu(desc->opts1);
4465 if (status & DescOwn)
4468 /* This barrier is needed to keep us from reading
4469 * any other fields out of the Rx descriptor until
4470 * we know the status of DescOwn
4474 if (unlikely(status & RxRES)) {
4475 if (net_ratelimit())
4476 netdev_warn(dev, "Rx ERROR. status = %08x\n",
4478 dev->stats.rx_errors++;
4479 if (status & (RxRWT | RxRUNT))
4480 dev->stats.rx_length_errors++;
4482 dev->stats.rx_crc_errors++;
4484 if (!(dev->features & NETIF_F_RXALL))
4485 goto release_descriptor;
4486 else if (status & RxRWT || !(status & (RxRUNT | RxCRC)))
4487 goto release_descriptor;
4490 pkt_size = status & GENMASK(13, 0);
4491 if (likely(!(dev->features & NETIF_F_RXFCS)))
4492 pkt_size -= ETH_FCS_LEN;
4494 /* The driver does not support incoming fragmented frames.
4495 * They are seen as a symptom of over-mtu sized frames.
4497 if (unlikely(rtl8169_fragmented_frame(status))) {
4498 dev->stats.rx_dropped++;
4499 dev->stats.rx_length_errors++;
4500 goto release_descriptor;
4503 skb = napi_alloc_skb(&tp->napi, pkt_size);
4504 if (unlikely(!skb)) {
4505 dev->stats.rx_dropped++;
4506 goto release_descriptor;
4509 addr = le64_to_cpu(desc->addr);
4510 rx_buf = page_address(tp->Rx_databuff[entry]);
4512 dma_sync_single_for_cpu(d, addr, pkt_size, DMA_FROM_DEVICE);
4514 skb_copy_to_linear_data(skb, rx_buf, pkt_size);
4515 skb->tail += pkt_size;
4516 skb->len = pkt_size;
4517 dma_sync_single_for_device(d, addr, pkt_size, DMA_FROM_DEVICE);
4519 rtl8169_rx_csum(skb, status);
4520 skb->protocol = eth_type_trans(skb, dev);
4522 rtl8169_rx_vlan_tag(desc, skb);
4524 if (skb->pkt_type == PACKET_MULTICAST)
4525 dev->stats.multicast++;
4527 napi_gro_receive(&tp->napi, skb);
4529 dev_sw_netstats_rx_add(dev, pkt_size);
4531 rtl8169_mark_to_asic(desc);
4537 static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
4539 struct rtl8169_private *tp = dev_instance;
4540 u32 status = rtl_get_events(tp);
4542 if ((status & 0xffff) == 0xffff || !(status & tp->irq_mask))
4545 if (unlikely(status & SYSErr)) {
4546 rtl8169_pcierr_interrupt(tp->dev);
4550 if (status & LinkChg)
4551 phy_mac_interrupt(tp->phydev);
4553 if (unlikely(status & RxFIFOOver &&
4554 tp->mac_version == RTL_GIGA_MAC_VER_11)) {
4555 netif_stop_queue(tp->dev);
4556 rtl_schedule_task(tp, RTL_FLAG_TASK_RESET_PENDING);
4559 if (napi_schedule_prep(&tp->napi)) {
4560 rtl_irq_disable(tp);
4561 __napi_schedule(&tp->napi);
4564 rtl_ack_events(tp, status);
4569 static void rtl_task(struct work_struct *work)
4571 struct rtl8169_private *tp =
4572 container_of(work, struct rtl8169_private, wk.work);
4576 if (!netif_running(tp->dev) ||
4577 !test_bit(RTL_FLAG_TASK_ENABLED, tp->wk.flags))
4580 if (test_and_clear_bit(RTL_FLAG_TASK_RESET_PENDING, tp->wk.flags)) {
4582 netif_wake_queue(tp->dev);
4588 static int rtl8169_poll(struct napi_struct *napi, int budget)
4590 struct rtl8169_private *tp = container_of(napi, struct rtl8169_private, napi);
4591 struct net_device *dev = tp->dev;
4594 rtl_tx(dev, tp, budget);
4596 work_done = rtl_rx(dev, tp, budget);
4598 if (work_done < budget && napi_complete_done(napi, work_done))
4604 static void r8169_phylink_handler(struct net_device *ndev)
4606 struct rtl8169_private *tp = netdev_priv(ndev);
4608 if (netif_carrier_ok(ndev)) {
4609 rtl_link_chg_patch(tp);
4610 pm_request_resume(&tp->pci_dev->dev);
4612 pm_runtime_idle(&tp->pci_dev->dev);
4615 if (net_ratelimit())
4616 phy_print_status(tp->phydev);
4619 static int r8169_phy_connect(struct rtl8169_private *tp)
4621 struct phy_device *phydev = tp->phydev;
4622 phy_interface_t phy_mode;
4625 phy_mode = tp->supports_gmii ? PHY_INTERFACE_MODE_GMII :
4626 PHY_INTERFACE_MODE_MII;
4628 ret = phy_connect_direct(tp->dev, phydev, r8169_phylink_handler,
4633 if (!tp->supports_gmii)
4634 phy_set_max_speed(phydev, SPEED_100);
4636 phy_support_asym_pause(phydev);
4638 phy_attached_info(phydev);
4643 static void rtl8169_down(struct rtl8169_private *tp)
4645 /* Clear all task flags */
4646 bitmap_zero(tp->wk.flags, RTL_FLAG_MAX);
4648 phy_stop(tp->phydev);
4650 rtl8169_update_counters(tp);
4652 pci_clear_master(tp->pci_dev);
4655 rtl8169_cleanup(tp, true);
4657 rtl_prepare_power_down(tp);
4660 static void rtl8169_up(struct rtl8169_private *tp)
4662 pci_set_master(tp->pci_dev);
4663 phy_init_hw(tp->phydev);
4664 phy_resume(tp->phydev);
4665 rtl8169_init_phy(tp);
4666 napi_enable(&tp->napi);
4667 set_bit(RTL_FLAG_TASK_ENABLED, tp->wk.flags);
4670 phy_start(tp->phydev);
4673 static int rtl8169_close(struct net_device *dev)
4675 struct rtl8169_private *tp = netdev_priv(dev);
4676 struct pci_dev *pdev = tp->pci_dev;
4678 pm_runtime_get_sync(&pdev->dev);
4680 netif_stop_queue(dev);
4682 rtl8169_rx_clear(tp);
4684 cancel_work_sync(&tp->wk.work);
4686 free_irq(pci_irq_vector(pdev, 0), tp);
4688 phy_disconnect(tp->phydev);
4690 dma_free_coherent(&pdev->dev, R8169_RX_RING_BYTES, tp->RxDescArray,
4692 dma_free_coherent(&pdev->dev, R8169_TX_RING_BYTES, tp->TxDescArray,
4694 tp->TxDescArray = NULL;
4695 tp->RxDescArray = NULL;
4697 pm_runtime_put_sync(&pdev->dev);
4702 #ifdef CONFIG_NET_POLL_CONTROLLER
4703 static void rtl8169_netpoll(struct net_device *dev)
4705 struct rtl8169_private *tp = netdev_priv(dev);
4707 rtl8169_interrupt(pci_irq_vector(tp->pci_dev, 0), tp);
4711 static int rtl_open(struct net_device *dev)
4713 struct rtl8169_private *tp = netdev_priv(dev);
4714 struct pci_dev *pdev = tp->pci_dev;
4715 unsigned long irqflags;
4716 int retval = -ENOMEM;
4718 pm_runtime_get_sync(&pdev->dev);
4721 * Rx and Tx descriptors needs 256 bytes alignment.
4722 * dma_alloc_coherent provides more.
4724 tp->TxDescArray = dma_alloc_coherent(&pdev->dev, R8169_TX_RING_BYTES,
4725 &tp->TxPhyAddr, GFP_KERNEL);
4726 if (!tp->TxDescArray)
4729 tp->RxDescArray = dma_alloc_coherent(&pdev->dev, R8169_RX_RING_BYTES,
4730 &tp->RxPhyAddr, GFP_KERNEL);
4731 if (!tp->RxDescArray)
4734 retval = rtl8169_init_ring(tp);
4738 rtl_request_firmware(tp);
4740 irqflags = pci_dev_msi_enabled(pdev) ? IRQF_NO_THREAD : IRQF_SHARED;
4741 retval = request_irq(pci_irq_vector(pdev, 0), rtl8169_interrupt,
4742 irqflags, dev->name, tp);
4744 goto err_release_fw_2;
4746 retval = r8169_phy_connect(tp);
4751 rtl8169_init_counter_offsets(tp);
4752 netif_start_queue(dev);
4754 pm_runtime_put_sync(&pdev->dev);
4759 free_irq(pci_irq_vector(pdev, 0), tp);
4761 rtl_release_firmware(tp);
4762 rtl8169_rx_clear(tp);
4764 dma_free_coherent(&pdev->dev, R8169_RX_RING_BYTES, tp->RxDescArray,
4766 tp->RxDescArray = NULL;
4768 dma_free_coherent(&pdev->dev, R8169_TX_RING_BYTES, tp->TxDescArray,
4770 tp->TxDescArray = NULL;
4775 rtl8169_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
4777 struct rtl8169_private *tp = netdev_priv(dev);
4778 struct pci_dev *pdev = tp->pci_dev;
4779 struct rtl8169_counters *counters = tp->counters;
4781 pm_runtime_get_noresume(&pdev->dev);
4783 netdev_stats_to_stats64(stats, &dev->stats);
4784 dev_fetch_sw_netstats(stats, dev->tstats);
4787 * Fetch additional counter values missing in stats collected by driver
4788 * from tally counters.
4790 if (pm_runtime_active(&pdev->dev))
4791 rtl8169_update_counters(tp);
4794 * Subtract values fetched during initalization.
4795 * See rtl8169_init_counter_offsets for a description why we do that.
4797 stats->tx_errors = le64_to_cpu(counters->tx_errors) -
4798 le64_to_cpu(tp->tc_offset.tx_errors);
4799 stats->collisions = le32_to_cpu(counters->tx_multi_collision) -
4800 le32_to_cpu(tp->tc_offset.tx_multi_collision);
4801 stats->tx_aborted_errors = le16_to_cpu(counters->tx_aborted) -
4802 le16_to_cpu(tp->tc_offset.tx_aborted);
4803 stats->rx_missed_errors = le16_to_cpu(counters->rx_missed) -
4804 le16_to_cpu(tp->tc_offset.rx_missed);
4806 pm_runtime_put_noidle(&pdev->dev);
4809 static void rtl8169_net_suspend(struct rtl8169_private *tp)
4811 netif_device_detach(tp->dev);
4813 if (netif_running(tp->dev))
4819 static int rtl8169_runtime_resume(struct device *dev)
4821 struct rtl8169_private *tp = dev_get_drvdata(dev);
4823 rtl_rar_set(tp, tp->dev->dev_addr);
4824 __rtl8169_set_wol(tp, tp->saved_wolopts);
4826 if (tp->TxDescArray)
4829 netif_device_attach(tp->dev);
4834 static int __maybe_unused rtl8169_suspend(struct device *device)
4836 struct rtl8169_private *tp = dev_get_drvdata(device);
4839 rtl8169_net_suspend(tp);
4840 if (!device_may_wakeup(tp_to_dev(tp)))
4841 clk_disable_unprepare(tp->clk);
4847 static int __maybe_unused rtl8169_resume(struct device *device)
4849 struct rtl8169_private *tp = dev_get_drvdata(device);
4851 if (!device_may_wakeup(tp_to_dev(tp)))
4852 clk_prepare_enable(tp->clk);
4854 /* Reportedly at least Asus X453MA truncates packets otherwise */
4855 if (tp->mac_version == RTL_GIGA_MAC_VER_37)
4858 return rtl8169_runtime_resume(device);
4861 static int rtl8169_runtime_suspend(struct device *device)
4863 struct rtl8169_private *tp = dev_get_drvdata(device);
4865 if (!tp->TxDescArray) {
4866 netif_device_detach(tp->dev);
4871 __rtl8169_set_wol(tp, WAKE_PHY);
4872 rtl8169_net_suspend(tp);
4878 static int rtl8169_runtime_idle(struct device *device)
4880 struct rtl8169_private *tp = dev_get_drvdata(device);
4882 if (!netif_running(tp->dev) || !netif_carrier_ok(tp->dev))
4883 pm_schedule_suspend(device, 10000);
4888 static const struct dev_pm_ops rtl8169_pm_ops = {
4889 SET_SYSTEM_SLEEP_PM_OPS(rtl8169_suspend, rtl8169_resume)
4890 SET_RUNTIME_PM_OPS(rtl8169_runtime_suspend, rtl8169_runtime_resume,
4891 rtl8169_runtime_idle)
4894 #endif /* CONFIG_PM */
4896 static void rtl_wol_shutdown_quirk(struct rtl8169_private *tp)
4898 /* WoL fails with 8168b when the receiver is disabled. */
4899 switch (tp->mac_version) {
4900 case RTL_GIGA_MAC_VER_11:
4901 case RTL_GIGA_MAC_VER_12:
4902 case RTL_GIGA_MAC_VER_17:
4903 pci_clear_master(tp->pci_dev);
4905 RTL_W8(tp, ChipCmd, CmdRxEnb);
4913 static void rtl_shutdown(struct pci_dev *pdev)
4915 struct rtl8169_private *tp = pci_get_drvdata(pdev);
4918 rtl8169_net_suspend(tp);
4921 /* Restore original MAC address */
4922 rtl_rar_set(tp, tp->dev->perm_addr);
4924 if (system_state == SYSTEM_POWER_OFF) {
4925 if (tp->saved_wolopts)
4926 rtl_wol_shutdown_quirk(tp);
4928 pci_wake_from_d3(pdev, tp->saved_wolopts);
4929 pci_set_power_state(pdev, PCI_D3hot);
4933 static void rtl_remove_one(struct pci_dev *pdev)
4935 struct rtl8169_private *tp = pci_get_drvdata(pdev);
4937 if (pci_dev_run_wake(pdev))
4938 pm_runtime_get_noresume(&pdev->dev);
4940 unregister_netdev(tp->dev);
4942 if (tp->dash_type != RTL_DASH_NONE)
4943 rtl8168_driver_stop(tp);
4945 rtl_release_firmware(tp);
4947 /* restore original MAC address */
4948 rtl_rar_set(tp, tp->dev->perm_addr);
4951 static const struct net_device_ops rtl_netdev_ops = {
4952 .ndo_open = rtl_open,
4953 .ndo_stop = rtl8169_close,
4954 .ndo_get_stats64 = rtl8169_get_stats64,
4955 .ndo_start_xmit = rtl8169_start_xmit,
4956 .ndo_features_check = rtl8169_features_check,
4957 .ndo_tx_timeout = rtl8169_tx_timeout,
4958 .ndo_validate_addr = eth_validate_addr,
4959 .ndo_change_mtu = rtl8169_change_mtu,
4960 .ndo_fix_features = rtl8169_fix_features,
4961 .ndo_set_features = rtl8169_set_features,
4962 .ndo_set_mac_address = rtl_set_mac_address,
4963 .ndo_do_ioctl = phy_do_ioctl_running,
4964 .ndo_set_rx_mode = rtl_set_rx_mode,
4965 #ifdef CONFIG_NET_POLL_CONTROLLER
4966 .ndo_poll_controller = rtl8169_netpoll,
4971 static void rtl_set_irq_mask(struct rtl8169_private *tp)
4973 tp->irq_mask = RxOK | RxErr | TxOK | TxErr | LinkChg;
4975 if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
4976 tp->irq_mask |= SYSErr | RxOverflow | RxFIFOOver;
4977 else if (tp->mac_version == RTL_GIGA_MAC_VER_11)
4978 /* special workaround needed */
4979 tp->irq_mask |= RxFIFOOver;
4981 tp->irq_mask |= RxOverflow;
4984 static int rtl_alloc_irq(struct rtl8169_private *tp)
4988 switch (tp->mac_version) {
4989 case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
4990 rtl_unlock_config_regs(tp);
4991 RTL_W8(tp, Config2, RTL_R8(tp, Config2) & ~MSIEnable);
4992 rtl_lock_config_regs(tp);
4994 case RTL_GIGA_MAC_VER_07 ... RTL_GIGA_MAC_VER_17:
4995 flags = PCI_IRQ_LEGACY;
4998 flags = PCI_IRQ_ALL_TYPES;
5002 return pci_alloc_irq_vectors(tp->pci_dev, 1, 1, flags);
5005 static void rtl_read_mac_address(struct rtl8169_private *tp,
5006 u8 mac_addr[ETH_ALEN])
5008 /* Get MAC address */
5009 if (rtl_is_8168evl_up(tp) && tp->mac_version != RTL_GIGA_MAC_VER_34) {
5012 value = rtl_eri_read(tp, 0xe0);
5013 put_unaligned_le32(value, mac_addr);
5014 value = rtl_eri_read(tp, 0xe4);
5015 put_unaligned_le16(value, mac_addr + 4);
5016 } else if (rtl_is_8125(tp)) {
5017 rtl_read_mac_from_reg(tp, mac_addr, MAC0_BKP);
5021 DECLARE_RTL_COND(rtl_link_list_ready_cond)
5023 return RTL_R8(tp, MCU) & LINK_LIST_RDY;
5026 static void r8168g_wait_ll_share_fifo_ready(struct rtl8169_private *tp)
5028 rtl_loop_wait_high(tp, &rtl_link_list_ready_cond, 100, 42);
5031 static int r8169_mdio_read_reg(struct mii_bus *mii_bus, int phyaddr, int phyreg)
5033 struct rtl8169_private *tp = mii_bus->priv;
5038 return rtl_readphy(tp, phyreg);
5041 static int r8169_mdio_write_reg(struct mii_bus *mii_bus, int phyaddr,
5042 int phyreg, u16 val)
5044 struct rtl8169_private *tp = mii_bus->priv;
5049 rtl_writephy(tp, phyreg, val);
5054 static int r8169_mdio_register(struct rtl8169_private *tp)
5056 struct pci_dev *pdev = tp->pci_dev;
5057 struct mii_bus *new_bus;
5060 new_bus = devm_mdiobus_alloc(&pdev->dev);
5064 new_bus->name = "r8169";
5066 new_bus->parent = &pdev->dev;
5067 new_bus->irq[0] = PHY_MAC_INTERRUPT;
5068 snprintf(new_bus->id, MII_BUS_ID_SIZE, "r8169-%x", pci_dev_id(pdev));
5070 new_bus->read = r8169_mdio_read_reg;
5071 new_bus->write = r8169_mdio_write_reg;
5073 ret = devm_mdiobus_register(&pdev->dev, new_bus);
5077 tp->phydev = mdiobus_get_phy(new_bus, 0);
5080 } else if (!tp->phydev->drv) {
5081 /* Most chip versions fail with the genphy driver.
5082 * Therefore ensure that the dedicated PHY driver is loaded.
5084 dev_err(&pdev->dev, "no dedicated PHY driver found for PHY ID 0x%08x, maybe realtek.ko needs to be added to initramfs?\n",
5085 tp->phydev->phy_id);
5089 tp->phydev->mac_managed_pm = 1;
5091 /* PHY will be woken up in rtl_open() */
5092 phy_suspend(tp->phydev);
5097 static void rtl_hw_init_8168g(struct rtl8169_private *tp)
5099 rtl_enable_rxdvgate(tp);
5101 RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) & ~(CmdTxEnb | CmdRxEnb));
5103 RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
5105 r8168_mac_ocp_modify(tp, 0xe8de, BIT(14), 0);
5106 r8168g_wait_ll_share_fifo_ready(tp);
5108 r8168_mac_ocp_modify(tp, 0xe8de, 0, BIT(15));
5109 r8168g_wait_ll_share_fifo_ready(tp);
5112 static void rtl_hw_init_8125(struct rtl8169_private *tp)
5114 rtl_enable_rxdvgate(tp);
5116 RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) & ~(CmdTxEnb | CmdRxEnb));
5118 RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
5120 r8168_mac_ocp_modify(tp, 0xe8de, BIT(14), 0);
5121 r8168g_wait_ll_share_fifo_ready(tp);
5123 r8168_mac_ocp_write(tp, 0xc0aa, 0x07d0);
5124 r8168_mac_ocp_write(tp, 0xc0a6, 0x0150);
5125 r8168_mac_ocp_write(tp, 0xc01e, 0x5555);
5126 r8168g_wait_ll_share_fifo_ready(tp);
5129 static void rtl_hw_initialize(struct rtl8169_private *tp)
5131 switch (tp->mac_version) {
5132 case RTL_GIGA_MAC_VER_49 ... RTL_GIGA_MAC_VER_53:
5133 rtl8168ep_stop_cmac(tp);
5135 case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_48:
5136 rtl_hw_init_8168g(tp);
5138 case RTL_GIGA_MAC_VER_60 ... RTL_GIGA_MAC_VER_63:
5139 rtl_hw_init_8125(tp);
5146 static int rtl_jumbo_max(struct rtl8169_private *tp)
5148 /* Non-GBit versions don't support jumbo frames */
5149 if (!tp->supports_gmii)
5152 switch (tp->mac_version) {
5154 case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
5157 case RTL_GIGA_MAC_VER_11:
5158 case RTL_GIGA_MAC_VER_12:
5159 case RTL_GIGA_MAC_VER_17:
5162 case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_24:
5169 static void rtl_disable_clk(void *data)
5171 clk_disable_unprepare(data);
5174 static int rtl_get_ether_clk(struct rtl8169_private *tp)
5176 struct device *d = tp_to_dev(tp);
5180 clk = devm_clk_get(d, "ether_clk");
5184 /* clk-core allows NULL (for suspend / resume) */
5187 dev_err_probe(d, rc, "failed to get clk\n");
5190 rc = clk_prepare_enable(clk);
5192 dev_err(d, "failed to enable clk: %d\n", rc);
5194 rc = devm_add_action_or_reset(d, rtl_disable_clk, clk);
5200 static void rtl_init_mac_address(struct rtl8169_private *tp)
5202 struct net_device *dev = tp->dev;
5203 u8 *mac_addr = dev->dev_addr;
5206 rc = eth_platform_get_mac_address(tp_to_dev(tp), mac_addr);
5210 rtl_read_mac_address(tp, mac_addr);
5211 if (is_valid_ether_addr(mac_addr))
5214 rtl_read_mac_from_reg(tp, mac_addr, MAC0);
5215 if (is_valid_ether_addr(mac_addr))
5218 eth_hw_addr_random(dev);
5219 dev_warn(tp_to_dev(tp), "can't read MAC address, setting random one\n");
5221 rtl_rar_set(tp, mac_addr);
5224 static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
5226 struct rtl8169_private *tp;
5227 int jumbo_max, region, rc;
5228 enum mac_version chipset;
5229 struct net_device *dev;
5232 dev = devm_alloc_etherdev(&pdev->dev, sizeof (*tp));
5236 SET_NETDEV_DEV(dev, &pdev->dev);
5237 dev->netdev_ops = &rtl_netdev_ops;
5238 tp = netdev_priv(dev);
5241 tp->supports_gmii = ent->driver_data == RTL_CFG_NO_GBIT ? 0 : 1;
5243 tp->ocp_base = OCP_STD_PHY_BASE;
5245 dev->tstats = devm_netdev_alloc_pcpu_stats(&pdev->dev,
5246 struct pcpu_sw_netstats);
5250 /* Get the *optional* external "ether_clk" used on some boards */
5251 rc = rtl_get_ether_clk(tp);
5255 /* Disable ASPM completely as that cause random device stop working
5256 * problems as well as full system hangs for some PCIe devices users.
5258 rc = pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S |
5259 PCIE_LINK_STATE_L1);
5260 tp->aspm_manageable = !rc;
5262 /* enable device (incl. PCI PM wakeup and hotplug setup) */
5263 rc = pcim_enable_device(pdev);
5265 dev_err(&pdev->dev, "enable failure\n");
5269 if (pcim_set_mwi(pdev) < 0)
5270 dev_info(&pdev->dev, "Mem-Wr-Inval unavailable\n");
5272 /* use first MMIO region */
5273 region = ffs(pci_select_bars(pdev, IORESOURCE_MEM)) - 1;
5275 dev_err(&pdev->dev, "no MMIO resource found\n");
5279 /* check for weird/broken PCI region reporting */
5280 if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) {
5281 dev_err(&pdev->dev, "Invalid PCI region size(s), aborting\n");
5285 rc = pcim_iomap_regions(pdev, BIT(region), MODULENAME);
5287 dev_err(&pdev->dev, "cannot remap MMIO, aborting\n");
5291 tp->mmio_addr = pcim_iomap_table(pdev)[region];
5293 xid = (RTL_R32(tp, TxConfig) >> 20) & 0xfcf;
5295 /* Identify chip attached to board */
5296 chipset = rtl8169_get_mac_version(xid, tp->supports_gmii);
5297 if (chipset == RTL_GIGA_MAC_NONE) {
5298 dev_err(&pdev->dev, "unknown chip XID %03x, contact r8169 maintainers (see MAINTAINERS file)\n", xid);
5302 tp->mac_version = chipset;
5304 tp->dash_type = rtl_check_dash(tp);
5306 tp->cp_cmd = RTL_R16(tp, CPlusCmd) & CPCMD_MASK;
5308 if (sizeof(dma_addr_t) > 4 && tp->mac_version >= RTL_GIGA_MAC_VER_18 &&
5309 !dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)))
5310 dev->features |= NETIF_F_HIGHDMA;
5314 rtl8169_irq_mask_and_ack(tp);
5316 rtl_hw_initialize(tp);
5320 rc = rtl_alloc_irq(tp);
5322 dev_err(&pdev->dev, "Can't allocate interrupt\n");
5326 INIT_WORK(&tp->wk.work, rtl_task);
5328 rtl_init_mac_address(tp);
5330 dev->ethtool_ops = &rtl8169_ethtool_ops;
5332 netif_napi_add(dev, &tp->napi, rtl8169_poll, NAPI_POLL_WEIGHT);
5334 dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
5335 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
5336 dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO;
5337 dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
5340 * Pretend we are using VLANs; This bypasses a nasty bug where
5341 * Interrupts stop flowing on high load on 8110SCd controllers.
5343 if (tp->mac_version == RTL_GIGA_MAC_VER_05)
5344 /* Disallow toggling */
5345 dev->hw_features &= ~NETIF_F_HW_VLAN_CTAG_RX;
5347 if (rtl_chip_supports_csum_v2(tp))
5348 dev->hw_features |= NETIF_F_IPV6_CSUM;
5350 dev->features |= dev->hw_features;
5352 /* There has been a number of reports that using SG/TSO results in
5353 * tx timeouts. However for a lot of people SG/TSO works fine.
5354 * Therefore disable both features by default, but allow users to
5355 * enable them. Use at own risk!
5357 if (rtl_chip_supports_csum_v2(tp)) {
5358 dev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6;
5359 dev->gso_max_size = RTL_GSO_MAX_SIZE_V2;
5360 dev->gso_max_segs = RTL_GSO_MAX_SEGS_V2;
5362 dev->hw_features |= NETIF_F_SG | NETIF_F_TSO;
5363 dev->gso_max_size = RTL_GSO_MAX_SIZE_V1;
5364 dev->gso_max_segs = RTL_GSO_MAX_SEGS_V1;
5367 dev->hw_features |= NETIF_F_RXALL;
5368 dev->hw_features |= NETIF_F_RXFCS;
5370 /* configure chip for default features */
5371 rtl8169_set_features(dev, dev->features);
5373 rtl_set_d3_pll_down(tp, true);
5375 jumbo_max = rtl_jumbo_max(tp);
5377 dev->max_mtu = jumbo_max;
5379 rtl_set_irq_mask(tp);
5381 tp->fw_name = rtl_chip_infos[chipset].fw_name;
5383 tp->counters = dmam_alloc_coherent (&pdev->dev, sizeof(*tp->counters),
5384 &tp->counters_phys_addr,
5389 pci_set_drvdata(pdev, tp);
5391 rc = r8169_mdio_register(tp);
5395 rc = register_netdev(dev);
5399 netdev_info(dev, "%s, %pM, XID %03x, IRQ %d\n",
5400 rtl_chip_infos[chipset].name, dev->dev_addr, xid,
5401 pci_irq_vector(pdev, 0));
5404 netdev_info(dev, "jumbo features [frames: %d bytes, tx checksumming: %s]\n",
5405 jumbo_max, tp->mac_version <= RTL_GIGA_MAC_VER_06 ?
5408 if (tp->dash_type != RTL_DASH_NONE) {
5409 netdev_info(dev, "DASH enabled\n");
5410 rtl8168_driver_start(tp);
5413 if (pci_dev_run_wake(pdev))
5414 pm_runtime_put_sync(&pdev->dev);
5419 static struct pci_driver rtl8169_pci_driver = {
5421 .id_table = rtl8169_pci_tbl,
5422 .probe = rtl_init_one,
5423 .remove = rtl_remove_one,
5424 .shutdown = rtl_shutdown,
5425 .driver.pm = pm_ptr(&rtl8169_pm_ops),
5428 module_pci_driver(rtl8169_pci_driver);