diff options
author | Cesar Eduardo Barros <cesarb@cesarb.net> | 2006-12-19 16:08:47 -0500 |
---|---|---|
committer | Jeff Garzik <jeff@garzik.org> | 2007-02-05 16:58:45 -0500 |
commit | bf345707299b34de90fbae062eff51e76561eb40 (patch) | |
tree | fe7bfccf1e479a798f592d702399f8808f9633f8 | |
parent | ae306cca3ada3c84f3e30e1091a98d99ee1d0557 (diff) |
driver for Silan SC92031 netdev
This is a driver for the Silan SC92031/Rsltek 8139D NIC chip.
This chip is found on at least one counterfeit Encore ENL832-TX-RENT NIC
[1], which came with a mini-CD with the 2.4 driver. A slightly older
version of the driver was found at [2]. The main difference between them
is that the newer one has a small bugfix in the RX path, a lot of
gratuitous renaming of functions, all the printable strings changed to show
as a "Rsltek 8139D" [sic], and a PCI ID of 8139 instead of 2031. The
driver on this patch is a rewrite of the vendor drivers (based mostly on
the older one).
Changes from the previous patch sent to netdev:
- Use MMIO instead of PIO
- Changed TX bounce buffers allocation
- Use skb_copy_and_csum_dev
- Several small bug fixes
- Tested for more than just a few minutes each time
[1] See http://www.encore-usa.com/faq.php under ENL832-TX-RENT for more
information
[2] Look for SL_LINUX.ZIP (which is really a .tar.gz) at
http://broadbandforum.in/dataone_Intex_LAN_cardlinux-t4207-s15.html
[3] To compile on 2.6.17, simply add back the last argument to the
interrupt handler in two places, and copy the boolean declarations
from 2.6.19
[akpm@osdl.org: build fixes]
Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
-rw-r--r-- | drivers/net/Kconfig | 12 | ||||
-rw-r--r-- | drivers/net/Makefile | 1 | ||||
-rw-r--r-- | drivers/net/sc92031.c | 1620 |
3 files changed, 1633 insertions, 0 deletions
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 8aa8dd02b910..10ac82f3612a 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig | |||
@@ -1788,6 +1788,18 @@ config LAN_SAA9730 | |||
1788 | workstations. | 1788 | workstations. |
1789 | See <http://www.semiconductors.philips.com/pip/SAA9730_flyer_1>. | 1789 | See <http://www.semiconductors.philips.com/pip/SAA9730_flyer_1>. |
1790 | 1790 | ||
1791 | config SC92031 | ||
1792 | tristate "Silan SC92031 PCI Fast Ethernet Adapter driver (EXPERIMENTAL)" | ||
1793 | depends on NET_PCI && PCI && EXPERIMENTAL | ||
1794 | select CRC32 | ||
1795 | ---help--- | ||
1796 | This is a driver for the Fast Ethernet PCI network cards based on | ||
1797 | the Silan SC92031 chip (sometimes also called Rsltek 8139D). If you | ||
1798 | have one of these, say Y here. | ||
1799 | |||
1800 | To compile this driver as a module, choose M here: the module | ||
1801 | will be called sc92031. This is recommended. | ||
1802 | |||
1791 | config NET_POCKET | 1803 | config NET_POCKET |
1792 | bool "Pocket and portable adapters" | 1804 | bool "Pocket and portable adapters" |
1793 | depends on NET_ETHERNET && PARPORT | 1805 | depends on NET_ETHERNET && PARPORT |
diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 4c0d4e5ce42b..58714d68c867 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile | |||
@@ -160,6 +160,7 @@ obj-$(CONFIG_APRICOT) += 82596.o | |||
160 | obj-$(CONFIG_LASI_82596) += lasi_82596.o | 160 | obj-$(CONFIG_LASI_82596) += lasi_82596.o |
161 | obj-$(CONFIG_MVME16x_NET) += 82596.o | 161 | obj-$(CONFIG_MVME16x_NET) += 82596.o |
162 | obj-$(CONFIG_BVME6000_NET) += 82596.o | 162 | obj-$(CONFIG_BVME6000_NET) += 82596.o |
163 | obj-$(CONFIG_SC92031) += sc92031.o | ||
163 | 164 | ||
164 | # This is also a 82596 and should probably be merged | 165 | # This is also a 82596 and should probably be merged |
165 | obj-$(CONFIG_LP486E) += lp486e.o | 166 | obj-$(CONFIG_LP486E) += lp486e.o |
diff --git a/drivers/net/sc92031.c b/drivers/net/sc92031.c new file mode 100644 index 000000000000..7f800feaa9a2 --- /dev/null +++ b/drivers/net/sc92031.c | |||
@@ -0,0 +1,1620 @@ | |||
1 | /* Silan SC92031 PCI Fast Ethernet Adapter driver | ||
2 | * | ||
3 | * Based on vendor drivers: | ||
4 | * Silan Fast Ethernet Netcard Driver: | ||
5 | * MODULE_AUTHOR ("gaoyonghong"); | ||
6 | * MODULE_DESCRIPTION ("SILAN Fast Ethernet driver"); | ||
7 | * MODULE_LICENSE("GPL"); | ||
8 | * 8139D Fast Ethernet driver: | ||
9 | * (C) 2002 by gaoyonghong | ||
10 | * MODULE_AUTHOR ("gaoyonghong"); | ||
11 | * MODULE_DESCRIPTION ("Rsltek 8139D PCI Fast Ethernet Adapter driver"); | ||
12 | * MODULE_LICENSE("GPL"); | ||
13 | * Both are almost identical and seem to be based on pci-skeleton.c | ||
14 | * | ||
15 | * Rewritten for 2.6 by Cesar Eduardo Barros | ||
16 | */ | ||
17 | |||
18 | /* Note about set_mac_address: I don't know how to change the hardware | ||
19 | * matching, so you need to enable IFF_PROMISC when using it. | ||
20 | */ | ||
21 | |||
22 | #include <linux/module.h> | ||
23 | #include <linux/kernel.h> | ||
24 | #include <linux/delay.h> | ||
25 | #include <linux/pci.h> | ||
26 | #include <linux/dma-mapping.h> | ||
27 | #include <linux/netdevice.h> | ||
28 | #include <linux/etherdevice.h> | ||
29 | #include <linux/ethtool.h> | ||
30 | #include <linux/crc32.h> | ||
31 | |||
32 | #include <asm/irq.h> | ||
33 | |||
34 | #define PCI_VENDOR_ID_SILAN 0x1904 | ||
35 | #define PCI_DEVICE_ID_SILAN_SC92031 0x2031 | ||
36 | #define PCI_DEVICE_ID_SILAN_8139D 0x8139 | ||
37 | |||
38 | #define SC92031_NAME "sc92031" | ||
39 | #define SC92031_DESCRIPTION "Silan SC92031 PCI Fast Ethernet Adapter driver" | ||
40 | #define SC92031_VERSION "2.0c" | ||
41 | |||
42 | /* BAR 0 is MMIO, BAR 1 is PIO */ | ||
43 | #ifndef SC92031_USE_BAR | ||
44 | #define SC92031_USE_BAR 0 | ||
45 | #endif | ||
46 | |||
47 | /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). */ | ||
48 | static int multicast_filter_limit = 64; | ||
49 | module_param(multicast_filter_limit, int, 0); | ||
50 | MODULE_PARM_DESC(multicast_filter_limit, | ||
51 | "Maximum number of filtered multicast addresses"); | ||
52 | |||
53 | static int media; | ||
54 | module_param(media, int, 0); | ||
55 | MODULE_PARM_DESC(media, "Media type (0x00 = autodetect," | ||
56 | " 0x01 = 10M half, 0x02 = 10M full," | ||
57 | " 0x04 = 100M half, 0x08 = 100M full)"); | ||
58 | |||
59 | /* Size of the in-memory receive ring. */ | ||
60 | #define RX_BUF_LEN_IDX 3 /* 0==8K, 1==16K, 2==32K, 3==64K ,4==128K*/ | ||
61 | #define RX_BUF_LEN (8192 << RX_BUF_LEN_IDX) | ||
62 | |||
63 | /* Number of Tx descriptor registers. */ | ||
64 | #define NUM_TX_DESC 4 | ||
65 | |||
66 | /* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/ | ||
67 | #define MAX_ETH_FRAME_SIZE 1536 | ||
68 | |||
69 | /* Size of the Tx bounce buffers -- must be at least (dev->mtu+14+4). */ | ||
70 | #define TX_BUF_SIZE MAX_ETH_FRAME_SIZE | ||
71 | #define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC) | ||
72 | |||
73 | /* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */ | ||
74 | #define RX_FIFO_THRESH 7 /* Rx buffer level before first PCI xfer. */ | ||
75 | |||
76 | /* Time in jiffies before concluding the transmitter is hung. */ | ||
77 | #define TX_TIMEOUT (4*HZ) | ||
78 | |||
79 | #define SILAN_STATS_NUM 2 /* number of ETHTOOL_GSTATS */ | ||
80 | |||
81 | /* media options */ | ||
82 | #define AUTOSELECT 0x00 | ||
83 | #define M10_HALF 0x01 | ||
84 | #define M10_FULL 0x02 | ||
85 | #define M100_HALF 0x04 | ||
86 | #define M100_FULL 0x08 | ||
87 | |||
88 | /* Symbolic offsets to registers. */ | ||
89 | enum silan_registers { | ||
90 | Config0 = 0x00, // Config0 | ||
91 | Config1 = 0x04, // Config1 | ||
92 | RxBufWPtr = 0x08, // Rx buffer writer poiter | ||
93 | IntrStatus = 0x0C, // Interrupt status | ||
94 | IntrMask = 0x10, // Interrupt mask | ||
95 | RxbufAddr = 0x14, // Rx buffer start address | ||
96 | RxBufRPtr = 0x18, // Rx buffer read pointer | ||
97 | Txstatusall = 0x1C, // Transmit status of all descriptors | ||
98 | TxStatus0 = 0x20, // Transmit status (Four 32bit registers). | ||
99 | TxAddr0 = 0x30, // Tx descriptors (also four 32bit). | ||
100 | RxConfig = 0x40, // Rx configuration | ||
101 | MAC0 = 0x44, // Ethernet hardware address. | ||
102 | MAR0 = 0x4C, // Multicast filter. | ||
103 | RxStatus0 = 0x54, // Rx status | ||
104 | TxConfig = 0x5C, // Tx configuration | ||
105 | PhyCtrl = 0x60, // physical control | ||
106 | FlowCtrlConfig = 0x64, // flow control | ||
107 | Miicmd0 = 0x68, // Mii command0 register | ||
108 | Miicmd1 = 0x6C, // Mii command1 register | ||
109 | Miistatus = 0x70, // Mii status register | ||
110 | Timercnt = 0x74, // Timer counter register | ||
111 | TimerIntr = 0x78, // Timer interrupt register | ||
112 | PMConfig = 0x7C, // Power Manager configuration | ||
113 | CRC0 = 0x80, // Power Manager CRC ( Two 32bit regisers) | ||
114 | Wakeup0 = 0x88, // power Manager wakeup( Eight 64bit regiser) | ||
115 | LSBCRC0 = 0xC8, // power Manager LSBCRC(Two 32bit regiser) | ||
116 | TestD0 = 0xD0, | ||
117 | TestD4 = 0xD4, | ||
118 | TestD8 = 0xD8, | ||
119 | }; | ||
120 | |||
121 | #define MII_BMCR 0 // Basic mode control register | ||
122 | #define MII_BMSR 1 // Basic mode status register | ||
123 | #define MII_JAB 16 | ||
124 | #define MII_OutputStatus 24 | ||
125 | |||
126 | #define BMCR_FULLDPLX 0x0100 // Full duplex | ||
127 | #define BMCR_ANRESTART 0x0200 // Auto negotiation restart | ||
128 | #define BMCR_ANENABLE 0x1000 // Enable auto negotiation | ||
129 | #define BMCR_SPEED100 0x2000 // Select 100Mbps | ||
130 | #define BMSR_LSTATUS 0x0004 // Link status | ||
131 | #define PHY_16_JAB_ENB 0x1000 | ||
132 | #define PHY_16_PORT_ENB 0x1 | ||
133 | |||
134 | enum IntrStatusBits { | ||
135 | LinkFail = 0x80000000, | ||
136 | LinkOK = 0x40000000, | ||
137 | TimeOut = 0x20000000, | ||
138 | RxOverflow = 0x0040, | ||
139 | RxOK = 0x0020, | ||
140 | TxOK = 0x0001, | ||
141 | IntrBits = LinkFail|LinkOK|TimeOut|RxOverflow|RxOK|TxOK, | ||
142 | }; | ||
143 | |||
144 | enum TxStatusBits { | ||
145 | TxCarrierLost = 0x20000000, | ||
146 | TxAborted = 0x10000000, | ||
147 | TxOutOfWindow = 0x08000000, | ||
148 | TxNccShift = 22, | ||
149 | EarlyTxThresShift = 16, | ||
150 | TxStatOK = 0x8000, | ||
151 | TxUnderrun = 0x4000, | ||
152 | TxOwn = 0x2000, | ||
153 | }; | ||
154 | |||
155 | enum RxStatusBits { | ||
156 | RxStatesOK = 0x80000, | ||
157 | RxBadAlign = 0x40000, | ||
158 | RxHugeFrame = 0x20000, | ||
159 | RxSmallFrame = 0x10000, | ||
160 | RxCRCOK = 0x8000, | ||
161 | RxCrlFrame = 0x4000, | ||
162 | Rx_Broadcast = 0x2000, | ||
163 | Rx_Multicast = 0x1000, | ||
164 | RxAddrMatch = 0x0800, | ||
165 | MiiErr = 0x0400, | ||
166 | }; | ||
167 | |||
168 | enum RxConfigBits { | ||
169 | RxFullDx = 0x80000000, | ||
170 | RxEnb = 0x40000000, | ||
171 | RxSmall = 0x20000000, | ||
172 | RxHuge = 0x10000000, | ||
173 | RxErr = 0x08000000, | ||
174 | RxAllphys = 0x04000000, | ||
175 | RxMulticast = 0x02000000, | ||
176 | RxBroadcast = 0x01000000, | ||
177 | RxLoopBack = (1 << 23) | (1 << 22), | ||
178 | LowThresholdShift = 12, | ||
179 | HighThresholdShift = 2, | ||
180 | }; | ||
181 | |||
182 | enum TxConfigBits { | ||
183 | TxFullDx = 0x80000000, | ||
184 | TxEnb = 0x40000000, | ||
185 | TxEnbPad = 0x20000000, | ||
186 | TxEnbHuge = 0x10000000, | ||
187 | TxEnbFCS = 0x08000000, | ||
188 | TxNoBackOff = 0x04000000, | ||
189 | TxEnbPrem = 0x02000000, | ||
190 | TxCareLostCrs = 0x1000000, | ||
191 | TxExdCollNum = 0xf00000, | ||
192 | TxDataRate = 0x80000, | ||
193 | }; | ||
194 | |||
195 | enum PhyCtrlconfigbits { | ||
196 | PhyCtrlAne = 0x80000000, | ||
197 | PhyCtrlSpd100 = 0x40000000, | ||
198 | PhyCtrlSpd10 = 0x20000000, | ||
199 | PhyCtrlPhyBaseAddr = 0x1f000000, | ||
200 | PhyCtrlDux = 0x800000, | ||
201 | PhyCtrlReset = 0x400000, | ||
202 | }; | ||
203 | |||
204 | enum FlowCtrlConfigBits { | ||
205 | FlowCtrlFullDX = 0x80000000, | ||
206 | FlowCtrlEnb = 0x40000000, | ||
207 | }; | ||
208 | |||
209 | enum Config0Bits { | ||
210 | Cfg0_Reset = 0x80000000, | ||
211 | Cfg0_Anaoff = 0x40000000, | ||
212 | Cfg0_LDPS = 0x20000000, | ||
213 | }; | ||
214 | |||
215 | enum Config1Bits { | ||
216 | Cfg1_EarlyRx = 1 << 31, | ||
217 | Cfg1_EarlyTx = 1 << 30, | ||
218 | |||
219 | //rx buffer size | ||
220 | Cfg1_Rcv8K = 0x0, | ||
221 | Cfg1_Rcv16K = 0x1, | ||
222 | Cfg1_Rcv32K = 0x3, | ||
223 | Cfg1_Rcv64K = 0x7, | ||
224 | Cfg1_Rcv128K = 0xf, | ||
225 | }; | ||
226 | |||
227 | enum MiiCmd0Bits { | ||
228 | Mii_Divider = 0x20000000, | ||
229 | Mii_WRITE = 0x400000, | ||
230 | Mii_READ = 0x200000, | ||
231 | Mii_SCAN = 0x100000, | ||
232 | Mii_Tamod = 0x80000, | ||
233 | Mii_Drvmod = 0x40000, | ||
234 | Mii_mdc = 0x20000, | ||
235 | Mii_mdoen = 0x10000, | ||
236 | Mii_mdo = 0x8000, | ||
237 | Mii_mdi = 0x4000, | ||
238 | }; | ||
239 | |||
240 | enum MiiStatusBits { | ||
241 | Mii_StatusBusy = 0x80000000, | ||
242 | }; | ||
243 | |||
244 | enum PMConfigBits { | ||
245 | PM_Enable = 1 << 31, | ||
246 | PM_LongWF = 1 << 30, | ||
247 | PM_Magic = 1 << 29, | ||
248 | PM_LANWake = 1 << 28, | ||
249 | PM_LWPTN = (1 << 27 | 1<< 26), | ||
250 | PM_LinkUp = 1 << 25, | ||
251 | PM_WakeUp = 1 << 24, | ||
252 | }; | ||
253 | |||
254 | /* Locking rules: | ||
255 | * priv->lock protects most of the fields of priv and most of the | ||
256 | * hardware registers. It does not have to protect against softirqs | ||
257 | * between sc92031_disable_interrupts and sc92031_enable_interrupts; | ||
258 | * it also does not need to be used in ->open and ->stop while the | ||
259 | * device interrupts are off. | ||
260 | * Not having to protect against softirqs is very useful due to heavy | ||
261 | * use of mdelay() at _sc92031_reset. | ||
262 | * Functions prefixed with _sc92031_ must be called with the lock held; | ||
263 | * functions prefixed with sc92031_ must be called without the lock held. | ||
264 | * Use mmiowb() before unlocking if the hardware was written to. | ||
265 | */ | ||
266 | |||
267 | /* Locking rules for the interrupt: | ||
268 | * - the interrupt and the tasklet never run at the same time | ||
269 | * - neither run between sc92031_disable_interrupts and | ||
270 | * sc92031_enable_interrupt | ||
271 | */ | ||
272 | |||
273 | struct sc92031_priv { | ||
274 | spinlock_t lock; | ||
275 | /* iomap.h cookie */ | ||
276 | void __iomem *port_base; | ||
277 | /* pci device structure */ | ||
278 | struct pci_dev *pdev; | ||
279 | /* tasklet */ | ||
280 | struct tasklet_struct tasklet; | ||
281 | |||
282 | /* CPU address of rx ring */ | ||
283 | void *rx_ring; | ||
284 | /* PCI address of rx ring */ | ||
285 | dma_addr_t rx_ring_dma_addr; | ||
286 | /* PCI address of rx ring read pointer */ | ||
287 | dma_addr_t rx_ring_tail; | ||
288 | |||
289 | /* tx ring write index */ | ||
290 | unsigned tx_head; | ||
291 | /* tx ring read index */ | ||
292 | unsigned tx_tail; | ||
293 | /* CPU address of tx bounce buffer */ | ||
294 | void *tx_bufs; | ||
295 | /* PCI address of tx bounce buffer */ | ||
296 | dma_addr_t tx_bufs_dma_addr; | ||
297 | |||
298 | /* copies of some hardware registers */ | ||
299 | u32 intr_status; | ||
300 | atomic_t intr_mask; | ||
301 | u32 rx_config; | ||
302 | u32 tx_config; | ||
303 | u32 pm_config; | ||
304 | |||
305 | /* copy of some flags from dev->flags */ | ||
306 | unsigned int mc_flags; | ||
307 | |||
308 | /* for ETHTOOL_GSTATS */ | ||
309 | u64 tx_timeouts; | ||
310 | u64 rx_loss; | ||
311 | |||
312 | /* for dev->get_stats */ | ||
313 | long rx_value; | ||
314 | struct net_device_stats stats; | ||
315 | }; | ||
316 | |||
317 | /* I don't know which registers can be safely read; however, I can guess | ||
318 | * MAC0 is one of them. */ | ||
319 | static inline void _sc92031_dummy_read(void __iomem *port_base) | ||
320 | { | ||
321 | ioread32(port_base + MAC0); | ||
322 | } | ||
323 | |||
324 | static u32 _sc92031_mii_wait(void __iomem *port_base) | ||
325 | { | ||
326 | u32 mii_status; | ||
327 | |||
328 | do { | ||
329 | udelay(10); | ||
330 | mii_status = ioread32(port_base + Miistatus); | ||
331 | } while (mii_status & Mii_StatusBusy); | ||
332 | |||
333 | return mii_status; | ||
334 | } | ||
335 | |||
336 | static u32 _sc92031_mii_cmd(void __iomem *port_base, u32 cmd0, u32 cmd1) | ||
337 | { | ||
338 | iowrite32(Mii_Divider, port_base + Miicmd0); | ||
339 | |||
340 | _sc92031_mii_wait(port_base); | ||
341 | |||
342 | iowrite32(cmd1, port_base + Miicmd1); | ||
343 | iowrite32(Mii_Divider | cmd0, port_base + Miicmd0); | ||
344 | |||
345 | return _sc92031_mii_wait(port_base); | ||
346 | } | ||
347 | |||
348 | static void _sc92031_mii_scan(void __iomem *port_base) | ||
349 | { | ||
350 | _sc92031_mii_cmd(port_base, Mii_SCAN, 0x1 << 6); | ||
351 | } | ||
352 | |||
353 | static u16 _sc92031_mii_read(void __iomem *port_base, unsigned reg) | ||
354 | { | ||
355 | return _sc92031_mii_cmd(port_base, Mii_READ, reg << 6) >> 13; | ||
356 | } | ||
357 | |||
358 | static void _sc92031_mii_write(void __iomem *port_base, unsigned reg, u16 val) | ||
359 | { | ||
360 | _sc92031_mii_cmd(port_base, Mii_WRITE, (reg << 6) | ((u32)val << 11)); | ||
361 | } | ||
362 | |||
363 | static void sc92031_disable_interrupts(struct net_device *dev) | ||
364 | { | ||
365 | struct sc92031_priv *priv = netdev_priv(dev); | ||
366 | void __iomem *port_base = priv->port_base; | ||
367 | |||
368 | /* tell the tasklet/interrupt not to enable interrupts */ | ||
369 | atomic_set(&priv->intr_mask, 0); | ||
370 | wmb(); | ||
371 | |||
372 | /* stop interrupts */ | ||
373 | iowrite32(0, port_base + IntrMask); | ||
374 | _sc92031_dummy_read(port_base); | ||
375 | mmiowb(); | ||
376 | |||
377 | /* wait for any concurrent interrupt/tasklet to finish */ | ||
378 | synchronize_irq(dev->irq); | ||
379 | tasklet_disable(&priv->tasklet); | ||
380 | } | ||
381 | |||
382 | static void sc92031_enable_interrupts(struct net_device *dev) | ||
383 | { | ||
384 | struct sc92031_priv *priv = netdev_priv(dev); | ||
385 | void __iomem *port_base = priv->port_base; | ||
386 | |||
387 | tasklet_enable(&priv->tasklet); | ||
388 | |||
389 | atomic_set(&priv->intr_mask, IntrBits); | ||
390 | wmb(); | ||
391 | |||
392 | iowrite32(IntrBits, port_base + IntrMask); | ||
393 | mmiowb(); | ||
394 | } | ||
395 | |||
396 | static void _sc92031_disable_tx_rx(struct net_device *dev) | ||
397 | { | ||
398 | struct sc92031_priv *priv = netdev_priv(dev); | ||
399 | void __iomem *port_base = priv->port_base; | ||
400 | |||
401 | priv->rx_config &= ~RxEnb; | ||
402 | priv->tx_config &= ~TxEnb; | ||
403 | iowrite32(priv->rx_config, port_base + RxConfig); | ||
404 | iowrite32(priv->tx_config, port_base + TxConfig); | ||
405 | } | ||
406 | |||
407 | static void _sc92031_enable_tx_rx(struct net_device *dev) | ||
408 | { | ||
409 | struct sc92031_priv *priv = netdev_priv(dev); | ||
410 | void __iomem *port_base = priv->port_base; | ||
411 | |||
412 | priv->rx_config |= RxEnb; | ||
413 | priv->tx_config |= TxEnb; | ||
414 | iowrite32(priv->rx_config, port_base + RxConfig); | ||
415 | iowrite32(priv->tx_config, port_base + TxConfig); | ||
416 | } | ||
417 | |||
418 | static void _sc92031_tx_clear(struct net_device *dev) | ||
419 | { | ||
420 | struct sc92031_priv *priv = netdev_priv(dev); | ||
421 | |||
422 | while (priv->tx_head - priv->tx_tail > 0) { | ||
423 | priv->tx_tail++; | ||
424 | priv->stats.tx_dropped++; | ||
425 | } | ||
426 | priv->tx_head = priv->tx_tail = 0; | ||
427 | } | ||
428 | |||
429 | static void _sc92031_set_mar(struct net_device *dev) | ||
430 | { | ||
431 | struct sc92031_priv *priv = netdev_priv(dev); | ||
432 | void __iomem *port_base = priv->port_base; | ||
433 | u32 mar0 = 0, mar1 = 0; | ||
434 | |||
435 | if ((dev->flags & IFF_PROMISC) | ||
436 | || dev->mc_count > multicast_filter_limit | ||
437 | || (dev->flags & IFF_ALLMULTI)) | ||
438 | mar0 = mar1 = 0xffffffff; | ||
439 | else if (dev->flags & IFF_MULTICAST) { | ||
440 | struct dev_mc_list *mc_list; | ||
441 | |||
442 | for (mc_list = dev->mc_list; mc_list; mc_list = mc_list->next) { | ||
443 | u32 crc; | ||
444 | unsigned bit = 0; | ||
445 | |||
446 | crc = ~ether_crc(ETH_ALEN, mc_list->dmi_addr); | ||
447 | crc >>= 24; | ||
448 | |||
449 | if (crc & 0x01) bit |= 0x02; | ||
450 | if (crc & 0x02) bit |= 0x01; | ||
451 | if (crc & 0x10) bit |= 0x20; | ||
452 | if (crc & 0x20) bit |= 0x10; | ||
453 | if (crc & 0x40) bit |= 0x08; | ||
454 | if (crc & 0x80) bit |= 0x04; | ||
455 | |||
456 | if (bit > 31) | ||
457 | mar0 |= 0x1 << (bit - 32); | ||
458 | else | ||
459 | mar1 |= 0x1 << bit; | ||
460 | } | ||
461 | } | ||
462 | |||
463 | iowrite32(mar0, port_base + MAR0); | ||
464 | iowrite32(mar1, port_base + MAR0 + 4); | ||
465 | } | ||
466 | |||
467 | static void _sc92031_set_rx_config(struct net_device *dev) | ||
468 | { | ||
469 | struct sc92031_priv *priv = netdev_priv(dev); | ||
470 | void __iomem *port_base = priv->port_base; | ||
471 | unsigned int old_mc_flags; | ||
472 | u32 rx_config_bits = 0; | ||
473 | |||
474 | old_mc_flags = priv->mc_flags; | ||
475 | |||
476 | if (dev->flags & IFF_PROMISC) | ||
477 | rx_config_bits |= RxSmall | RxHuge | RxErr | RxBroadcast | ||
478 | | RxMulticast | RxAllphys; | ||
479 | |||
480 | if (dev->flags & (IFF_ALLMULTI | IFF_MULTICAST)) | ||
481 | rx_config_bits |= RxMulticast; | ||
482 | |||
483 | if (dev->flags & IFF_BROADCAST) | ||
484 | rx_config_bits |= RxBroadcast; | ||
485 | |||
486 | priv->rx_config &= ~(RxSmall | RxHuge | RxErr | RxBroadcast | ||
487 | | RxMulticast | RxAllphys); | ||
488 | priv->rx_config |= rx_config_bits; | ||
489 | |||
490 | priv->mc_flags = dev->flags & (IFF_PROMISC | IFF_ALLMULTI | ||
491 | | IFF_MULTICAST | IFF_BROADCAST); | ||
492 | |||
493 | if (netif_carrier_ok(dev) && priv->mc_flags != old_mc_flags) | ||
494 | iowrite32(priv->rx_config, port_base + RxConfig); | ||
495 | } | ||
496 | |||
497 | static bool _sc92031_check_media(struct net_device *dev) | ||
498 | { | ||
499 | struct sc92031_priv *priv = netdev_priv(dev); | ||
500 | void __iomem *port_base = priv->port_base; | ||
501 | u16 bmsr; | ||
502 | |||
503 | bmsr = _sc92031_mii_read(port_base, MII_BMSR); | ||
504 | rmb(); | ||
505 | if (bmsr & BMSR_LSTATUS) { | ||
506 | bool speed_100, duplex_full; | ||
507 | u32 flow_ctrl_config = 0; | ||
508 | u16 output_status = _sc92031_mii_read(port_base, | ||
509 | MII_OutputStatus); | ||
510 | _sc92031_mii_scan(port_base); | ||
511 | |||
512 | speed_100 = output_status & 0x2; | ||
513 | duplex_full = output_status & 0x4; | ||
514 | |||
515 | /* Initial Tx/Rx configuration */ | ||
516 | priv->rx_config = (0x40 << LowThresholdShift) | (0x1c0 << HighThresholdShift); | ||
517 | priv->tx_config = 0x48800000; | ||
518 | |||
519 | /* NOTE: vendor driver had dead code here to enable tx padding */ | ||
520 | |||
521 | if (!speed_100) | ||
522 | priv->tx_config |= 0x80000; | ||
523 | |||
524 | // configure rx mode | ||
525 | _sc92031_set_rx_config(dev); | ||
526 | |||
527 | if (duplex_full) { | ||
528 | priv->rx_config |= RxFullDx; | ||
529 | priv->tx_config |= TxFullDx; | ||
530 | flow_ctrl_config = FlowCtrlFullDX | FlowCtrlEnb; | ||
531 | } else { | ||
532 | priv->rx_config &= ~RxFullDx; | ||
533 | priv->tx_config &= ~TxFullDx; | ||
534 | } | ||
535 | |||
536 | _sc92031_set_mar(dev); | ||
537 | _sc92031_set_rx_config(dev); | ||
538 | _sc92031_enable_tx_rx(dev); | ||
539 | iowrite32(flow_ctrl_config, port_base + FlowCtrlConfig); | ||
540 | |||
541 | netif_carrier_on(dev); | ||
542 | |||
543 | if (printk_ratelimit()) | ||
544 | printk(KERN_INFO "%s: link up, %sMbps, %s-duplex\n", | ||
545 | dev->name, | ||
546 | speed_100 ? "100" : "10", | ||
547 | duplex_full ? "full" : "half"); | ||
548 | return true; | ||
549 | } else { | ||
550 | _sc92031_mii_scan(port_base); | ||
551 | |||
552 | netif_carrier_off(dev); | ||
553 | |||
554 | _sc92031_disable_tx_rx(dev); | ||
555 | |||
556 | if (printk_ratelimit()) | ||
557 | printk(KERN_INFO "%s: link down\n", dev->name); | ||
558 | return false; | ||
559 | } | ||
560 | } | ||
561 | |||
562 | static void _sc92031_phy_reset(struct net_device *dev) | ||
563 | { | ||
564 | struct sc92031_priv *priv = netdev_priv(dev); | ||
565 | void __iomem *port_base = priv->port_base; | ||
566 | u32 phy_ctrl; | ||
567 | |||
568 | phy_ctrl = ioread32(port_base + PhyCtrl); | ||
569 | phy_ctrl &= ~(PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10); | ||
570 | phy_ctrl |= PhyCtrlAne | PhyCtrlReset; | ||
571 | |||
572 | switch (media) { | ||
573 | default: | ||
574 | case AUTOSELECT: | ||
575 | phy_ctrl |= PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10; | ||
576 | break; | ||
577 | case M10_HALF: | ||
578 | phy_ctrl |= PhyCtrlSpd10; | ||
579 | break; | ||
580 | case M10_FULL: | ||
581 | phy_ctrl |= PhyCtrlDux | PhyCtrlSpd10; | ||
582 | break; | ||
583 | case M100_HALF: | ||
584 | phy_ctrl |= PhyCtrlSpd100; | ||
585 | break; | ||
586 | case M100_FULL: | ||
587 | phy_ctrl |= PhyCtrlDux | PhyCtrlSpd100; | ||
588 | break; | ||
589 | } | ||
590 | |||
591 | iowrite32(phy_ctrl, port_base + PhyCtrl); | ||
592 | mdelay(10); | ||
593 | |||
594 | phy_ctrl &= ~PhyCtrlReset; | ||
595 | iowrite32(phy_ctrl, port_base + PhyCtrl); | ||
596 | mdelay(1); | ||
597 | |||
598 | _sc92031_mii_write(port_base, MII_JAB, | ||
599 | PHY_16_JAB_ENB | PHY_16_PORT_ENB); | ||
600 | _sc92031_mii_scan(port_base); | ||
601 | |||
602 | netif_carrier_off(dev); | ||
603 | netif_stop_queue(dev); | ||
604 | } | ||
605 | |||
606 | static void _sc92031_reset(struct net_device *dev) | ||
607 | { | ||
608 | struct sc92031_priv *priv = netdev_priv(dev); | ||
609 | void __iomem *port_base = priv->port_base; | ||
610 | |||
611 | /* disable PM */ | ||
612 | iowrite32(0, port_base + PMConfig); | ||
613 | |||
614 | /* soft reset the chip */ | ||
615 | iowrite32(Cfg0_Reset, port_base + Config0); | ||
616 | mdelay(200); | ||
617 | |||
618 | iowrite32(0, port_base + Config0); | ||
619 | mdelay(10); | ||
620 | |||
621 | /* disable interrupts */ | ||
622 | iowrite32(0, port_base + IntrMask); | ||
623 | |||
624 | /* clear multicast address */ | ||
625 | iowrite32(0, port_base + MAR0); | ||
626 | iowrite32(0, port_base + MAR0 + 4); | ||
627 | |||
628 | /* init rx ring */ | ||
629 | iowrite32(priv->rx_ring_dma_addr, port_base + RxbufAddr); | ||
630 | priv->rx_ring_tail = priv->rx_ring_dma_addr; | ||
631 | |||
632 | /* init tx ring */ | ||
633 | _sc92031_tx_clear(dev); | ||
634 | |||
635 | /* clear old register values */ | ||
636 | priv->intr_status = 0; | ||
637 | atomic_set(&priv->intr_mask, 0); | ||
638 | priv->rx_config = 0; | ||
639 | priv->tx_config = 0; | ||
640 | priv->mc_flags = 0; | ||
641 | |||
642 | /* configure rx buffer size */ | ||
643 | /* NOTE: vendor driver had dead code here to enable early tx/rx */ | ||
644 | iowrite32(Cfg1_Rcv64K, port_base + Config1); | ||
645 | |||
646 | _sc92031_phy_reset(dev); | ||
647 | _sc92031_check_media(dev); | ||
648 | |||
649 | /* calculate rx fifo overflow */ | ||
650 | priv->rx_value = 0; | ||
651 | |||
652 | /* enable PM */ | ||
653 | iowrite32(priv->pm_config, port_base + PMConfig); | ||
654 | |||
655 | /* clear intr register */ | ||
656 | ioread32(port_base + IntrStatus); | ||
657 | } | ||
658 | |||
659 | static void _sc92031_tx_tasklet(struct net_device *dev) | ||
660 | { | ||
661 | struct sc92031_priv *priv = netdev_priv(dev); | ||
662 | void __iomem *port_base = priv->port_base; | ||
663 | |||
664 | unsigned old_tx_tail; | ||
665 | unsigned entry; | ||
666 | u32 tx_status; | ||
667 | |||
668 | old_tx_tail = priv->tx_tail; | ||
669 | while (priv->tx_head - priv->tx_tail > 0) { | ||
670 | entry = priv->tx_tail % NUM_TX_DESC; | ||
671 | tx_status = ioread32(port_base + TxStatus0 + entry * 4); | ||
672 | |||
673 | if (!(tx_status & (TxStatOK | TxUnderrun | TxAborted))) | ||
674 | break; | ||
675 | |||
676 | priv->tx_tail++; | ||
677 | |||
678 | if (tx_status & TxStatOK) { | ||
679 | priv->stats.tx_bytes += tx_status & 0x1fff; | ||
680 | priv->stats.tx_packets++; | ||
681 | /* Note: TxCarrierLost is always asserted at 100mbps. */ | ||
682 | priv->stats.collisions += (tx_status >> 22) & 0xf; | ||
683 | } | ||
684 | |||
685 | if (tx_status & (TxOutOfWindow | TxAborted)) { | ||
686 | priv->stats.tx_errors++; | ||
687 | |||
688 | if (tx_status & TxAborted) | ||
689 | priv->stats.tx_aborted_errors++; | ||
690 | |||
691 | if (tx_status & TxCarrierLost) | ||
692 | priv->stats.tx_carrier_errors++; | ||
693 | |||
694 | if (tx_status & TxOutOfWindow) | ||
695 | priv->stats.tx_window_errors++; | ||
696 | } | ||
697 | |||
698 | if (tx_status & TxUnderrun) | ||
699 | priv->stats.tx_fifo_errors++; | ||
700 | } | ||
701 | |||
702 | if (priv->tx_tail != old_tx_tail) | ||
703 | if (netif_queue_stopped(dev)) | ||
704 | netif_wake_queue(dev); | ||
705 | } | ||
706 | |||
707 | static void _sc92031_rx_tasklet_error(u32 rx_status, | ||
708 | struct sc92031_priv *priv, unsigned rx_size) | ||
709 | { | ||
710 | if(rx_size > (MAX_ETH_FRAME_SIZE + 4) || rx_size < 16) { | ||
711 | priv->stats.rx_errors++; | ||
712 | priv->stats.rx_length_errors++; | ||
713 | } | ||
714 | |||
715 | if (!(rx_status & RxStatesOK)) { | ||
716 | priv->stats.rx_errors++; | ||
717 | |||
718 | if (rx_status & (RxHugeFrame | RxSmallFrame)) | ||
719 | priv->stats.rx_length_errors++; | ||
720 | |||
721 | if (rx_status & RxBadAlign) | ||
722 | priv->stats.rx_frame_errors++; | ||
723 | |||
724 | if (!(rx_status & RxCRCOK)) | ||
725 | priv->stats.rx_crc_errors++; | ||
726 | } else | ||
727 | priv->rx_loss++; | ||
728 | } | ||
729 | |||
730 | static void _sc92031_rx_tasklet(struct net_device *dev) | ||
731 | { | ||
732 | struct sc92031_priv *priv = netdev_priv(dev); | ||
733 | void __iomem *port_base = priv->port_base; | ||
734 | |||
735 | dma_addr_t rx_ring_head; | ||
736 | unsigned rx_len; | ||
737 | unsigned rx_ring_offset; | ||
738 | void *rx_ring = priv->rx_ring; | ||
739 | |||
740 | rx_ring_head = ioread32(port_base + RxBufWPtr); | ||
741 | rmb(); | ||
742 | |||
743 | /* rx_ring_head is only 17 bits in the RxBufWPtr register. | ||
744 | * we need to change it to 32 bits physical address | ||
745 | */ | ||
746 | rx_ring_head &= (dma_addr_t)(RX_BUF_LEN - 1); | ||
747 | rx_ring_head |= priv->rx_ring_dma_addr & ~(dma_addr_t)(RX_BUF_LEN - 1); | ||
748 | if (rx_ring_head < priv->rx_ring_dma_addr) | ||
749 | rx_ring_head += RX_BUF_LEN; | ||
750 | |||
751 | if (rx_ring_head >= priv->rx_ring_tail) | ||
752 | rx_len = rx_ring_head - priv->rx_ring_tail; | ||
753 | else | ||
754 | rx_len = RX_BUF_LEN - (priv->rx_ring_tail - rx_ring_head); | ||
755 | |||
756 | if (!rx_len) | ||
757 | return; | ||
758 | |||
759 | if (unlikely(rx_len > RX_BUF_LEN)) { | ||
760 | if (printk_ratelimit()) | ||
761 | printk(KERN_ERR "%s: rx packets length > rx buffer\n", | ||
762 | dev->name); | ||
763 | return; | ||
764 | } | ||
765 | |||
766 | rx_ring_offset = (priv->rx_ring_tail - priv->rx_ring_dma_addr) % RX_BUF_LEN; | ||
767 | |||
768 | while (rx_len) { | ||
769 | u32 rx_status; | ||
770 | unsigned rx_size, rx_size_align, pkt_size; | ||
771 | struct sk_buff *skb; | ||
772 | |||
773 | rx_status = le32_to_cpup((__le32 *)(rx_ring + rx_ring_offset)); | ||
774 | rmb(); | ||
775 | |||
776 | rx_size = rx_status >> 20; | ||
777 | rx_size_align = (rx_size + 3) & ~3; // for 4 bytes aligned | ||
778 | pkt_size = rx_size - 4; // Omit the four octet CRC from the length. | ||
779 | |||
780 | rx_ring_offset = (rx_ring_offset + 4) % RX_BUF_LEN; | ||
781 | |||
782 | if (unlikely(rx_status == 0 | ||
783 | || rx_size > (MAX_ETH_FRAME_SIZE + 4) | ||
784 | || rx_size < 16 | ||
785 | || !(rx_status & RxStatesOK))) { | ||
786 | _sc92031_rx_tasklet_error(rx_status, priv, rx_size); | ||
787 | break; | ||
788 | } | ||
789 | |||
790 | if (unlikely(rx_size_align + 4 > rx_len)) { | ||
791 | if (printk_ratelimit()) | ||
792 | printk(KERN_ERR "%s: rx_len is too small\n", dev->name); | ||
793 | break; | ||
794 | } | ||
795 | |||
796 | rx_len -= rx_size_align + 4; | ||
797 | |||
798 | skb = dev_alloc_skb(pkt_size + NET_IP_ALIGN); | ||
799 | if (unlikely(!skb)) { | ||
800 | if (printk_ratelimit()) | ||
801 | printk(KERN_ERR "%s: Couldn't allocate a skb_buff for a packet of size %u\n", | ||
802 | dev->name, pkt_size); | ||
803 | goto next; | ||
804 | } | ||
805 | |||
806 | skb_reserve(skb, NET_IP_ALIGN); | ||
807 | |||
808 | if ((rx_ring_offset + pkt_size) > RX_BUF_LEN) { | ||
809 | memcpy(skb_put(skb, RX_BUF_LEN - rx_ring_offset), | ||
810 | rx_ring + rx_ring_offset, RX_BUF_LEN - rx_ring_offset); | ||
811 | memcpy(skb_put(skb, pkt_size - (RX_BUF_LEN - rx_ring_offset)), | ||
812 | rx_ring, pkt_size - (RX_BUF_LEN - rx_ring_offset)); | ||
813 | } else { | ||
814 | memcpy(skb_put(skb, pkt_size), rx_ring + rx_ring_offset, pkt_size); | ||
815 | } | ||
816 | |||
817 | skb->dev = dev; | ||
818 | skb->protocol = eth_type_trans(skb, dev); | ||
819 | dev->last_rx = jiffies; | ||
820 | netif_rx(skb); | ||
821 | |||
822 | priv->stats.rx_bytes += pkt_size; | ||
823 | priv->stats.rx_packets++; | ||
824 | |||
825 | if (rx_status & Rx_Multicast) | ||
826 | priv->stats.multicast++; | ||
827 | |||
828 | next: | ||
829 | rx_ring_offset = (rx_ring_offset + rx_size_align) % RX_BUF_LEN; | ||
830 | } | ||
831 | mb(); | ||
832 | |||
833 | priv->rx_ring_tail = rx_ring_head; | ||
834 | iowrite32(priv->rx_ring_tail, port_base + RxBufRPtr); | ||
835 | } | ||
836 | |||
837 | static void _sc92031_link_tasklet(struct net_device *dev) | ||
838 | { | ||
839 | struct sc92031_priv *priv = netdev_priv(dev); | ||
840 | |||
841 | if (_sc92031_check_media(dev)) | ||
842 | netif_wake_queue(dev); | ||
843 | else { | ||
844 | netif_stop_queue(dev); | ||
845 | priv->stats.tx_carrier_errors++; | ||
846 | } | ||
847 | } | ||
848 | |||
849 | static void sc92031_tasklet(unsigned long data) | ||
850 | { | ||
851 | struct net_device *dev = (struct net_device *)data; | ||
852 | struct sc92031_priv *priv = netdev_priv(dev); | ||
853 | void __iomem *port_base = priv->port_base; | ||
854 | u32 intr_status, intr_mask; | ||
855 | |||
856 | intr_status = priv->intr_status; | ||
857 | |||
858 | spin_lock(&priv->lock); | ||
859 | |||
860 | if (unlikely(!netif_running(dev))) | ||
861 | goto out; | ||
862 | |||
863 | if (intr_status & TxOK) | ||
864 | _sc92031_tx_tasklet(dev); | ||
865 | |||
866 | if (intr_status & RxOK) | ||
867 | _sc92031_rx_tasklet(dev); | ||
868 | |||
869 | if (intr_status & RxOverflow) | ||
870 | priv->stats.rx_errors++; | ||
871 | |||
872 | if (intr_status & TimeOut) { | ||
873 | priv->stats.rx_errors++; | ||
874 | priv->stats.rx_length_errors++; | ||
875 | } | ||
876 | |||
877 | if (intr_status & (LinkFail | LinkOK)) | ||
878 | _sc92031_link_tasklet(dev); | ||
879 | |||
880 | out: | ||
881 | intr_mask = atomic_read(&priv->intr_mask); | ||
882 | rmb(); | ||
883 | |||
884 | iowrite32(intr_mask, port_base + IntrMask); | ||
885 | mmiowb(); | ||
886 | |||
887 | spin_unlock(&priv->lock); | ||
888 | } | ||
889 | |||
890 | static irqreturn_t sc92031_interrupt(int irq, void *dev_id) | ||
891 | { | ||
892 | struct net_device *dev = dev_id; | ||
893 | struct sc92031_priv *priv = netdev_priv(dev); | ||
894 | void __iomem *port_base = priv->port_base; | ||
895 | u32 intr_status, intr_mask; | ||
896 | |||
897 | /* mask interrupts before clearing IntrStatus */ | ||
898 | iowrite32(0, port_base + IntrMask); | ||
899 | _sc92031_dummy_read(port_base); | ||
900 | |||
901 | intr_status = ioread32(port_base + IntrStatus); | ||
902 | if (unlikely(intr_status == 0xffffffff)) | ||
903 | return IRQ_NONE; // hardware has gone missing | ||
904 | |||
905 | intr_status &= IntrBits; | ||
906 | if (!intr_status) | ||
907 | goto out_none; | ||
908 | |||
909 | priv->intr_status = intr_status; | ||
910 | tasklet_schedule(&priv->tasklet); | ||
911 | |||
912 | return IRQ_HANDLED; | ||
913 | |||
914 | out_none: | ||
915 | intr_mask = atomic_read(&priv->intr_mask); | ||
916 | rmb(); | ||
917 | |||
918 | iowrite32(intr_mask, port_base + IntrMask); | ||
919 | mmiowb(); | ||
920 | |||
921 | return IRQ_NONE; | ||
922 | } | ||
923 | |||
924 | static struct net_device_stats *sc92031_get_stats(struct net_device *dev) | ||
925 | { | ||
926 | struct sc92031_priv *priv = netdev_priv(dev); | ||
927 | void __iomem *port_base = priv->port_base; | ||
928 | |||
929 | // FIXME I do not understand what is this trying to do. | ||
930 | if (netif_running(dev)) { | ||
931 | int temp; | ||
932 | |||
933 | spin_lock_bh(&priv->lock); | ||
934 | |||
935 | /* Update the error count. */ | ||
936 | temp = (ioread32(port_base + RxStatus0) >> 16) & 0xffff; | ||
937 | |||
938 | if (temp == 0xffff) { | ||
939 | priv->rx_value += temp; | ||
940 | priv->stats.rx_fifo_errors = priv->rx_value; | ||
941 | } else { | ||
942 | priv->stats.rx_fifo_errors = temp + priv->rx_value; | ||
943 | } | ||
944 | |||
945 | spin_unlock_bh(&priv->lock); | ||
946 | } | ||
947 | |||
948 | return &priv->stats; | ||
949 | } | ||
950 | |||
951 | static int sc92031_start_xmit(struct sk_buff *skb, struct net_device *dev) | ||
952 | { | ||
953 | int err = 0; | ||
954 | struct sc92031_priv *priv = netdev_priv(dev); | ||
955 | void __iomem *port_base = priv->port_base; | ||
956 | |||
957 | unsigned len; | ||
958 | unsigned entry; | ||
959 | u32 tx_status; | ||
960 | |||
961 | if (unlikely(skb->len > TX_BUF_SIZE)) { | ||
962 | err = -EMSGSIZE; | ||
963 | priv->stats.tx_dropped++; | ||
964 | goto out; | ||
965 | } | ||
966 | |||
967 | spin_lock_bh(&priv->lock); | ||
968 | |||
969 | if (unlikely(!netif_carrier_ok(dev))) { | ||
970 | err = -ENOLINK; | ||
971 | priv->stats.tx_dropped++; | ||
972 | goto out_unlock; | ||
973 | } | ||
974 | |||
975 | BUG_ON(priv->tx_head - priv->tx_tail >= NUM_TX_DESC); | ||
976 | |||
977 | entry = priv->tx_head++ % NUM_TX_DESC; | ||
978 | |||
979 | skb_copy_and_csum_dev(skb, priv->tx_bufs + entry * TX_BUF_SIZE); | ||
980 | |||
981 | len = skb->len; | ||
982 | if (unlikely(len < ETH_ZLEN)) { | ||
983 | memset(priv->tx_bufs + entry * TX_BUF_SIZE + len, | ||
984 | 0, ETH_ZLEN - len); | ||
985 | len = ETH_ZLEN; | ||
986 | } | ||
987 | |||
988 | wmb(); | ||
989 | |||
990 | if (len < 100) | ||
991 | tx_status = len; | ||
992 | else if (len < 300) | ||
993 | tx_status = 0x30000 | len; | ||
994 | else | ||
995 | tx_status = 0x50000 | len; | ||
996 | |||
997 | iowrite32(priv->tx_bufs_dma_addr + entry * TX_BUF_SIZE, | ||
998 | port_base + TxAddr0 + entry * 4); | ||
999 | iowrite32(tx_status, port_base + TxStatus0 + entry * 4); | ||
1000 | mmiowb(); | ||
1001 | |||
1002 | dev->trans_start = jiffies; | ||
1003 | |||
1004 | if (priv->tx_head - priv->tx_tail >= NUM_TX_DESC) | ||
1005 | netif_stop_queue(dev); | ||
1006 | |||
1007 | out_unlock: | ||
1008 | spin_unlock_bh(&priv->lock); | ||
1009 | |||
1010 | out: | ||
1011 | dev_kfree_skb(skb); | ||
1012 | |||
1013 | return err; | ||
1014 | } | ||
1015 | |||
1016 | static int sc92031_open(struct net_device *dev) | ||
1017 | { | ||
1018 | int err; | ||
1019 | struct sc92031_priv *priv = netdev_priv(dev); | ||
1020 | struct pci_dev *pdev = priv->pdev; | ||
1021 | |||
1022 | priv->rx_ring = pci_alloc_consistent(pdev, RX_BUF_LEN, | ||
1023 | &priv->rx_ring_dma_addr); | ||
1024 | if (unlikely(!priv->rx_ring)) { | ||
1025 | err = -ENOMEM; | ||
1026 | goto out_alloc_rx_ring; | ||
1027 | } | ||
1028 | |||
1029 | priv->tx_bufs = pci_alloc_consistent(pdev, TX_BUF_TOT_LEN, | ||
1030 | &priv->tx_bufs_dma_addr); | ||
1031 | if (unlikely(!priv->tx_bufs)) { | ||
1032 | err = -ENOMEM; | ||
1033 | goto out_alloc_tx_bufs; | ||
1034 | } | ||
1035 | priv->tx_head = priv->tx_tail = 0; | ||
1036 | |||
1037 | err = request_irq(pdev->irq, sc92031_interrupt, | ||
1038 | SA_SHIRQ, dev->name, dev); | ||
1039 | if (unlikely(err < 0)) | ||
1040 | goto out_request_irq; | ||
1041 | |||
1042 | priv->pm_config = 0; | ||
1043 | |||
1044 | /* Interrupts already disabled by sc92031_stop or sc92031_probe */ | ||
1045 | spin_lock(&priv->lock); | ||
1046 | |||
1047 | _sc92031_reset(dev); | ||
1048 | mmiowb(); | ||
1049 | |||
1050 | spin_unlock(&priv->lock); | ||
1051 | sc92031_enable_interrupts(dev); | ||
1052 | |||
1053 | if (netif_carrier_ok(dev)) | ||
1054 | netif_start_queue(dev); | ||
1055 | else | ||
1056 | netif_tx_disable(dev); | ||
1057 | |||
1058 | return 0; | ||
1059 | |||
1060 | out_request_irq: | ||
1061 | pci_free_consistent(pdev, TX_BUF_TOT_LEN, priv->tx_bufs, | ||
1062 | priv->tx_bufs_dma_addr); | ||
1063 | out_alloc_tx_bufs: | ||
1064 | pci_free_consistent(pdev, RX_BUF_LEN, priv->rx_ring, | ||
1065 | priv->rx_ring_dma_addr); | ||
1066 | out_alloc_rx_ring: | ||
1067 | return err; | ||
1068 | } | ||
1069 | |||
1070 | static int sc92031_stop(struct net_device *dev) | ||
1071 | { | ||
1072 | struct sc92031_priv *priv = netdev_priv(dev); | ||
1073 | struct pci_dev *pdev = priv->pdev; | ||
1074 | |||
1075 | netif_tx_disable(dev); | ||
1076 | |||
1077 | /* Disable interrupts, stop Tx and Rx. */ | ||
1078 | sc92031_disable_interrupts(dev); | ||
1079 | |||
1080 | spin_lock(&priv->lock); | ||
1081 | |||
1082 | _sc92031_disable_tx_rx(dev); | ||
1083 | _sc92031_tx_clear(dev); | ||
1084 | mmiowb(); | ||
1085 | |||
1086 | spin_unlock(&priv->lock); | ||
1087 | |||
1088 | free_irq(pdev->irq, dev); | ||
1089 | pci_free_consistent(pdev, TX_BUF_TOT_LEN, priv->tx_bufs, | ||
1090 | priv->tx_bufs_dma_addr); | ||
1091 | pci_free_consistent(pdev, RX_BUF_LEN, priv->rx_ring, | ||
1092 | priv->rx_ring_dma_addr); | ||
1093 | |||
1094 | return 0; | ||
1095 | } | ||
1096 | |||
1097 | static void sc92031_set_multicast_list(struct net_device *dev) | ||
1098 | { | ||
1099 | struct sc92031_priv *priv = netdev_priv(dev); | ||
1100 | |||
1101 | spin_lock_bh(&priv->lock); | ||
1102 | |||
1103 | _sc92031_set_mar(dev); | ||
1104 | _sc92031_set_rx_config(dev); | ||
1105 | mmiowb(); | ||
1106 | |||
1107 | spin_unlock_bh(&priv->lock); | ||
1108 | } | ||
1109 | |||
1110 | static void sc92031_tx_timeout(struct net_device *dev) | ||
1111 | { | ||
1112 | struct sc92031_priv *priv = netdev_priv(dev); | ||
1113 | |||
1114 | /* Disable interrupts by clearing the interrupt mask.*/ | ||
1115 | sc92031_disable_interrupts(dev); | ||
1116 | |||
1117 | spin_lock(&priv->lock); | ||
1118 | |||
1119 | priv->tx_timeouts++; | ||
1120 | |||
1121 | _sc92031_reset(dev); | ||
1122 | mmiowb(); | ||
1123 | |||
1124 | spin_unlock(&priv->lock); | ||
1125 | |||
1126 | /* enable interrupts */ | ||
1127 | sc92031_enable_interrupts(dev); | ||
1128 | |||
1129 | if (netif_carrier_ok(dev)) | ||
1130 | netif_wake_queue(dev); | ||
1131 | } | ||
1132 | |||
1133 | #ifdef CONFIG_NET_POLL_CONTROLLER | ||
1134 | static void sc92031_poll_controller(struct net_device *dev) | ||
1135 | { | ||
1136 | disable_irq(dev->irq); | ||
1137 | if (sc92031_interrupt(dev->irq, dev) != IRQ_NONE) | ||
1138 | sc92031_tasklet((unsigned long)dev); | ||
1139 | enable_irq(dev->irq); | ||
1140 | } | ||
1141 | #endif | ||
1142 | |||
1143 | static int sc92031_ethtool_get_settings(struct net_device *dev, | ||
1144 | struct ethtool_cmd *cmd) | ||
1145 | { | ||
1146 | struct sc92031_priv *priv = netdev_priv(dev); | ||
1147 | void __iomem *port_base = priv->port_base; | ||
1148 | u8 phy_address; | ||
1149 | u32 phy_ctrl; | ||
1150 | u16 output_status; | ||
1151 | |||
1152 | spin_lock_bh(&priv->lock); | ||
1153 | |||
1154 | phy_address = ioread32(port_base + Miicmd1) >> 27; | ||
1155 | phy_ctrl = ioread32(port_base + PhyCtrl); | ||
1156 | |||
1157 | output_status = _sc92031_mii_read(port_base, MII_OutputStatus); | ||
1158 | _sc92031_mii_scan(port_base); | ||
1159 | mmiowb(); | ||
1160 | |||
1161 | spin_unlock_bh(&priv->lock); | ||
1162 | |||
1163 | cmd->supported = SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | ||
1164 | | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | ||
1165 | | SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII; | ||
1166 | |||
1167 | cmd->advertising = ADVERTISED_TP | ADVERTISED_MII; | ||
1168 | |||
1169 | if ((phy_ctrl & (PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10)) | ||
1170 | == (PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10)) | ||
1171 | cmd->advertising |= ADVERTISED_Autoneg; | ||
1172 | |||
1173 | if ((phy_ctrl & PhyCtrlSpd10) == PhyCtrlSpd10) | ||
1174 | cmd->advertising |= ADVERTISED_10baseT_Half; | ||
1175 | |||
1176 | if ((phy_ctrl & (PhyCtrlSpd10 | PhyCtrlDux)) | ||
1177 | == (PhyCtrlSpd10 | PhyCtrlDux)) | ||
1178 | cmd->advertising |= ADVERTISED_10baseT_Full; | ||
1179 | |||
1180 | if ((phy_ctrl & PhyCtrlSpd100) == PhyCtrlSpd100) | ||
1181 | cmd->advertising |= ADVERTISED_100baseT_Half; | ||
1182 | |||
1183 | if ((phy_ctrl & (PhyCtrlSpd100 | PhyCtrlDux)) | ||
1184 | == (PhyCtrlSpd100 | PhyCtrlDux)) | ||
1185 | cmd->advertising |= ADVERTISED_100baseT_Full; | ||
1186 | |||
1187 | if (phy_ctrl & PhyCtrlAne) | ||
1188 | cmd->advertising |= ADVERTISED_Autoneg; | ||
1189 | |||
1190 | cmd->speed = (output_status & 0x2) ? SPEED_100 : SPEED_10; | ||
1191 | cmd->duplex = (output_status & 0x4) ? DUPLEX_FULL : DUPLEX_HALF; | ||
1192 | cmd->port = PORT_MII; | ||
1193 | cmd->phy_address = phy_address; | ||
1194 | cmd->transceiver = XCVR_INTERNAL; | ||
1195 | cmd->autoneg = (phy_ctrl & PhyCtrlAne) ? AUTONEG_ENABLE : AUTONEG_DISABLE; | ||
1196 | |||
1197 | return 0; | ||
1198 | } | ||
1199 | |||
1200 | static int sc92031_ethtool_set_settings(struct net_device *dev, | ||
1201 | struct ethtool_cmd *cmd) | ||
1202 | { | ||
1203 | struct sc92031_priv *priv = netdev_priv(dev); | ||
1204 | void __iomem *port_base = priv->port_base; | ||
1205 | u32 phy_ctrl; | ||
1206 | u32 old_phy_ctrl; | ||
1207 | |||
1208 | if (!(cmd->speed == SPEED_10 || cmd->speed == SPEED_100)) | ||
1209 | return -EINVAL; | ||
1210 | if (!(cmd->duplex == DUPLEX_HALF || cmd->duplex == DUPLEX_FULL)) | ||
1211 | return -EINVAL; | ||
1212 | if (!(cmd->port == PORT_MII)) | ||
1213 | return -EINVAL; | ||
1214 | if (!(cmd->phy_address == 0x1f)) | ||
1215 | return -EINVAL; | ||
1216 | if (!(cmd->transceiver == XCVR_INTERNAL)) | ||
1217 | return -EINVAL; | ||
1218 | if (!(cmd->autoneg == AUTONEG_DISABLE || cmd->autoneg == AUTONEG_ENABLE)) | ||
1219 | return -EINVAL; | ||
1220 | |||
1221 | if (cmd->autoneg == AUTONEG_ENABLE) { | ||
1222 | if (!(cmd->advertising & (ADVERTISED_Autoneg | ||
1223 | | ADVERTISED_100baseT_Full | ||
1224 | | ADVERTISED_100baseT_Half | ||
1225 | | ADVERTISED_10baseT_Full | ||
1226 | | ADVERTISED_10baseT_Half))) | ||
1227 | return -EINVAL; | ||
1228 | |||
1229 | phy_ctrl = PhyCtrlAne; | ||
1230 | |||
1231 | // FIXME: I'm not sure what the original code was trying to do | ||
1232 | if (cmd->advertising & ADVERTISED_Autoneg) | ||
1233 | phy_ctrl |= PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10; | ||
1234 | if (cmd->advertising & ADVERTISED_100baseT_Full) | ||
1235 | phy_ctrl |= PhyCtrlDux | PhyCtrlSpd100; | ||
1236 | if (cmd->advertising & ADVERTISED_100baseT_Half) | ||
1237 | phy_ctrl |= PhyCtrlSpd100; | ||
1238 | if (cmd->advertising & ADVERTISED_10baseT_Full) | ||
1239 | phy_ctrl |= PhyCtrlSpd10 | PhyCtrlDux; | ||
1240 | if (cmd->advertising & ADVERTISED_10baseT_Half) | ||
1241 | phy_ctrl |= PhyCtrlSpd10; | ||
1242 | } else { | ||
1243 | // FIXME: Whole branch guessed | ||
1244 | phy_ctrl = 0; | ||
1245 | |||
1246 | if (cmd->speed == SPEED_10) | ||
1247 | phy_ctrl |= PhyCtrlSpd10; | ||
1248 | else /* cmd->speed == SPEED_100 */ | ||
1249 | phy_ctrl |= PhyCtrlSpd100; | ||
1250 | |||
1251 | if (cmd->duplex == DUPLEX_FULL) | ||
1252 | phy_ctrl |= PhyCtrlDux; | ||
1253 | } | ||
1254 | |||
1255 | spin_lock_bh(&priv->lock); | ||
1256 | |||
1257 | old_phy_ctrl = ioread32(port_base + PhyCtrl); | ||
1258 | phy_ctrl |= old_phy_ctrl & ~(PhyCtrlAne | PhyCtrlDux | ||
1259 | | PhyCtrlSpd100 | PhyCtrlSpd10); | ||
1260 | if (phy_ctrl != old_phy_ctrl) | ||
1261 | iowrite32(phy_ctrl, port_base + PhyCtrl); | ||
1262 | |||
1263 | spin_unlock_bh(&priv->lock); | ||
1264 | |||
1265 | return 0; | ||
1266 | } | ||
1267 | |||
1268 | static void sc92031_ethtool_get_drvinfo(struct net_device *dev, | ||
1269 | struct ethtool_drvinfo *drvinfo) | ||
1270 | { | ||
1271 | struct sc92031_priv *priv = netdev_priv(dev); | ||
1272 | struct pci_dev *pdev = priv->pdev; | ||
1273 | |||
1274 | strcpy(drvinfo->driver, SC92031_NAME); | ||
1275 | strcpy(drvinfo->version, SC92031_VERSION); | ||
1276 | strcpy(drvinfo->bus_info, pci_name(pdev)); | ||
1277 | } | ||
1278 | |||
1279 | static void sc92031_ethtool_get_wol(struct net_device *dev, | ||
1280 | struct ethtool_wolinfo *wolinfo) | ||
1281 | { | ||
1282 | struct sc92031_priv *priv = netdev_priv(dev); | ||
1283 | void __iomem *port_base = priv->port_base; | ||
1284 | u32 pm_config; | ||
1285 | |||
1286 | spin_lock_bh(&priv->lock); | ||
1287 | pm_config = ioread32(port_base + PMConfig); | ||
1288 | spin_unlock_bh(&priv->lock); | ||
1289 | |||
1290 | // FIXME: Guessed | ||
1291 | wolinfo->supported = WAKE_PHY | WAKE_MAGIC | ||
1292 | | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST; | ||
1293 | wolinfo->wolopts = 0; | ||
1294 | |||
1295 | if (pm_config & PM_LinkUp) | ||
1296 | wolinfo->wolopts |= WAKE_PHY; | ||
1297 | |||
1298 | if (pm_config & PM_Magic) | ||
1299 | wolinfo->wolopts |= WAKE_MAGIC; | ||
1300 | |||
1301 | if (pm_config & PM_WakeUp) | ||
1302 | // FIXME: Guessed | ||
1303 | wolinfo->wolopts |= WAKE_UCAST | WAKE_MCAST | WAKE_BCAST; | ||
1304 | } | ||
1305 | |||
1306 | static int sc92031_ethtool_set_wol(struct net_device *dev, | ||
1307 | struct ethtool_wolinfo *wolinfo) | ||
1308 | { | ||
1309 | struct sc92031_priv *priv = netdev_priv(dev); | ||
1310 | void __iomem *port_base = priv->port_base; | ||
1311 | u32 pm_config; | ||
1312 | |||
1313 | spin_lock_bh(&priv->lock); | ||
1314 | |||
1315 | pm_config = ioread32(port_base + PMConfig) | ||
1316 | & ~(PM_LinkUp | PM_Magic | PM_WakeUp); | ||
1317 | |||
1318 | if (wolinfo->wolopts & WAKE_PHY) | ||
1319 | pm_config |= PM_LinkUp; | ||
1320 | |||
1321 | if (wolinfo->wolopts & WAKE_MAGIC) | ||
1322 | pm_config |= PM_Magic; | ||
1323 | |||
1324 | // FIXME: Guessed | ||
1325 | if (wolinfo->wolopts & (WAKE_UCAST | WAKE_MCAST | WAKE_BCAST)) | ||
1326 | pm_config |= PM_WakeUp; | ||
1327 | |||
1328 | priv->pm_config = pm_config; | ||
1329 | iowrite32(pm_config, port_base + PMConfig); | ||
1330 | mmiowb(); | ||
1331 | |||
1332 | spin_unlock_bh(&priv->lock); | ||
1333 | |||
1334 | return 0; | ||
1335 | } | ||
1336 | |||
1337 | static int sc92031_ethtool_nway_reset(struct net_device *dev) | ||
1338 | { | ||
1339 | int err = 0; | ||
1340 | struct sc92031_priv *priv = netdev_priv(dev); | ||
1341 | void __iomem *port_base = priv->port_base; | ||
1342 | u16 bmcr; | ||
1343 | |||
1344 | spin_lock_bh(&priv->lock); | ||
1345 | |||
1346 | bmcr = _sc92031_mii_read(port_base, MII_BMCR); | ||
1347 | if (!(bmcr & BMCR_ANENABLE)) { | ||
1348 | err = -EINVAL; | ||
1349 | goto out; | ||
1350 | } | ||
1351 | |||
1352 | _sc92031_mii_write(port_base, MII_BMCR, bmcr | BMCR_ANRESTART); | ||
1353 | |||
1354 | out: | ||
1355 | _sc92031_mii_scan(port_base); | ||
1356 | mmiowb(); | ||
1357 | |||
1358 | spin_unlock_bh(&priv->lock); | ||
1359 | |||
1360 | return err; | ||
1361 | } | ||
1362 | |||
1363 | static const char sc92031_ethtool_stats_strings[SILAN_STATS_NUM][ETH_GSTRING_LEN] = { | ||
1364 | "tx_timeout", | ||
1365 | "rx_loss", | ||
1366 | }; | ||
1367 | |||
1368 | static void sc92031_ethtool_get_strings(struct net_device *dev, | ||
1369 | u32 stringset, u8 *data) | ||
1370 | { | ||
1371 | if (stringset == ETH_SS_STATS) | ||
1372 | memcpy(data, sc92031_ethtool_stats_strings, | ||
1373 | SILAN_STATS_NUM * ETH_GSTRING_LEN); | ||
1374 | } | ||
1375 | |||
1376 | static int sc92031_ethtool_get_stats_count(struct net_device *dev) | ||
1377 | { | ||
1378 | return SILAN_STATS_NUM; | ||
1379 | } | ||
1380 | |||
1381 | static void sc92031_ethtool_get_ethtool_stats(struct net_device *dev, | ||
1382 | struct ethtool_stats *stats, u64 *data) | ||
1383 | { | ||
1384 | struct sc92031_priv *priv = netdev_priv(dev); | ||
1385 | |||
1386 | spin_lock_bh(&priv->lock); | ||
1387 | data[0] = priv->tx_timeouts; | ||
1388 | data[1] = priv->rx_loss; | ||
1389 | spin_unlock_bh(&priv->lock); | ||
1390 | } | ||
1391 | |||
1392 | static struct ethtool_ops sc92031_ethtool_ops = { | ||
1393 | .get_settings = sc92031_ethtool_get_settings, | ||
1394 | .set_settings = sc92031_ethtool_set_settings, | ||
1395 | .get_drvinfo = sc92031_ethtool_get_drvinfo, | ||
1396 | .get_wol = sc92031_ethtool_get_wol, | ||
1397 | .set_wol = sc92031_ethtool_set_wol, | ||
1398 | .nway_reset = sc92031_ethtool_nway_reset, | ||
1399 | .get_link = ethtool_op_get_link, | ||
1400 | .get_tx_csum = ethtool_op_get_tx_csum, | ||
1401 | .get_sg = ethtool_op_get_sg, | ||
1402 | .get_tso = ethtool_op_get_tso, | ||
1403 | .get_strings = sc92031_ethtool_get_strings, | ||
1404 | .get_stats_count = sc92031_ethtool_get_stats_count, | ||
1405 | .get_ethtool_stats = sc92031_ethtool_get_ethtool_stats, | ||
1406 | .get_perm_addr = ethtool_op_get_perm_addr, | ||
1407 | .get_ufo = ethtool_op_get_ufo, | ||
1408 | }; | ||
1409 | |||
1410 | static int __devinit sc92031_probe(struct pci_dev *pdev, | ||
1411 | const struct pci_device_id *id) | ||
1412 | { | ||
1413 | int err; | ||
1414 | void __iomem* port_base; | ||
1415 | struct net_device *dev; | ||
1416 | struct sc92031_priv *priv; | ||
1417 | u32 mac0, mac1; | ||
1418 | |||
1419 | err = pci_enable_device(pdev); | ||
1420 | if (unlikely(err < 0)) | ||
1421 | goto out_enable_device; | ||
1422 | |||
1423 | pci_set_master(pdev); | ||
1424 | |||
1425 | err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | ||
1426 | if (unlikely(err < 0)) | ||
1427 | goto out_set_dma_mask; | ||
1428 | |||
1429 | err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); | ||
1430 | if (unlikely(err < 0)) | ||
1431 | goto out_set_dma_mask; | ||
1432 | |||
1433 | err = pci_request_regions(pdev, SC92031_NAME); | ||
1434 | if (unlikely(err < 0)) | ||
1435 | goto out_request_regions; | ||
1436 | |||
1437 | port_base = pci_iomap(pdev, SC92031_USE_BAR, 0); | ||
1438 | if (unlikely(!port_base)) { | ||
1439 | err = -EIO; | ||
1440 | goto out_iomap; | ||
1441 | } | ||
1442 | |||
1443 | dev = alloc_etherdev(sizeof(struct sc92031_priv)); | ||
1444 | if (unlikely(!dev)) { | ||
1445 | err = -ENOMEM; | ||
1446 | goto out_alloc_etherdev; | ||
1447 | } | ||
1448 | |||
1449 | pci_set_drvdata(pdev, dev); | ||
1450 | |||
1451 | #if SC92031_USE_BAR == 0 | ||
1452 | dev->mem_start = pci_resource_start(pdev, SC92031_USE_BAR); | ||
1453 | dev->mem_end = pci_resource_end(pdev, SC92031_USE_BAR); | ||
1454 | #elif SC92031_USE_BAR == 1 | ||
1455 | dev->base_addr = pci_resource_start(pdev, SC92031_USE_BAR); | ||
1456 | #endif | ||
1457 | dev->irq = pdev->irq; | ||
1458 | |||
1459 | /* faked with skb_copy_and_csum_dev */ | ||
1460 | dev->features = NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA; | ||
1461 | |||
1462 | dev->get_stats = sc92031_get_stats; | ||
1463 | dev->ethtool_ops = &sc92031_ethtool_ops; | ||
1464 | dev->hard_start_xmit = sc92031_start_xmit; | ||
1465 | dev->watchdog_timeo = TX_TIMEOUT; | ||
1466 | dev->open = sc92031_open; | ||
1467 | dev->stop = sc92031_stop; | ||
1468 | dev->set_multicast_list = sc92031_set_multicast_list; | ||
1469 | dev->tx_timeout = sc92031_tx_timeout; | ||
1470 | #ifdef CONFIG_NET_POLL_CONTROLLER | ||
1471 | dev->poll_controller = sc92031_poll_controller; | ||
1472 | #endif | ||
1473 | |||
1474 | priv = netdev_priv(dev); | ||
1475 | spin_lock_init(&priv->lock); | ||
1476 | priv->port_base = port_base; | ||
1477 | priv->pdev = pdev; | ||
1478 | tasklet_init(&priv->tasklet, sc92031_tasklet, (unsigned long)dev); | ||
1479 | /* Fudge tasklet count so the call to sc92031_enable_interrupts at | ||
1480 | * sc92031_open will work correctly */ | ||
1481 | tasklet_disable_nosync(&priv->tasklet); | ||
1482 | |||
1483 | /* PCI PM Wakeup */ | ||
1484 | iowrite32((~PM_LongWF & ~PM_LWPTN) | PM_Enable, port_base + PMConfig); | ||
1485 | |||
1486 | mac0 = ioread32(port_base + MAC0); | ||
1487 | mac1 = ioread32(port_base + MAC0 + 4); | ||
1488 | dev->dev_addr[0] = dev->perm_addr[0] = mac0 >> 24; | ||
1489 | dev->dev_addr[1] = dev->perm_addr[1] = mac0 >> 16; | ||
1490 | dev->dev_addr[2] = dev->perm_addr[2] = mac0 >> 8; | ||
1491 | dev->dev_addr[3] = dev->perm_addr[3] = mac0; | ||
1492 | dev->dev_addr[4] = dev->perm_addr[4] = mac1 >> 8; | ||
1493 | dev->dev_addr[5] = dev->perm_addr[5] = mac1; | ||
1494 | |||
1495 | err = register_netdev(dev); | ||
1496 | if (err < 0) | ||
1497 | goto out_register_netdev; | ||
1498 | |||
1499 | return 0; | ||
1500 | |||
1501 | out_register_netdev: | ||
1502 | free_netdev(dev); | ||
1503 | out_alloc_etherdev: | ||
1504 | pci_iounmap(pdev, port_base); | ||
1505 | out_iomap: | ||
1506 | pci_release_regions(pdev); | ||
1507 | out_request_regions: | ||
1508 | out_set_dma_mask: | ||
1509 | pci_disable_device(pdev); | ||
1510 | out_enable_device: | ||
1511 | return err; | ||
1512 | } | ||
1513 | |||
1514 | static void __devexit sc92031_remove(struct pci_dev *pdev) | ||
1515 | { | ||
1516 | struct net_device *dev = pci_get_drvdata(pdev); | ||
1517 | struct sc92031_priv *priv = netdev_priv(dev); | ||
1518 | void __iomem* port_base = priv->port_base; | ||
1519 | |||
1520 | unregister_netdev(dev); | ||
1521 | free_netdev(dev); | ||
1522 | pci_iounmap(pdev, port_base); | ||
1523 | pci_release_regions(pdev); | ||
1524 | pci_disable_device(pdev); | ||
1525 | } | ||
1526 | |||
1527 | static int sc92031_suspend(struct pci_dev *pdev, pm_message_t state) | ||
1528 | { | ||
1529 | struct net_device *dev = pci_get_drvdata(pdev); | ||
1530 | struct sc92031_priv *priv = netdev_priv(dev); | ||
1531 | |||
1532 | pci_save_state(pdev); | ||
1533 | |||
1534 | if (!netif_running(dev)) | ||
1535 | goto out; | ||
1536 | |||
1537 | netif_device_detach(dev); | ||
1538 | |||
1539 | /* Disable interrupts, stop Tx and Rx. */ | ||
1540 | sc92031_disable_interrupts(dev); | ||
1541 | |||
1542 | spin_lock(&priv->lock); | ||
1543 | |||
1544 | _sc92031_disable_tx_rx(dev); | ||
1545 | _sc92031_tx_clear(dev); | ||
1546 | mmiowb(); | ||
1547 | |||
1548 | spin_unlock(&priv->lock); | ||
1549 | |||
1550 | out: | ||
1551 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | ||
1552 | |||
1553 | return 0; | ||
1554 | } | ||
1555 | |||
1556 | static int sc92031_resume(struct pci_dev *pdev) | ||
1557 | { | ||
1558 | struct net_device *dev = pci_get_drvdata(pdev); | ||
1559 | struct sc92031_priv *priv = netdev_priv(dev); | ||
1560 | |||
1561 | pci_restore_state(pdev); | ||
1562 | pci_set_power_state(pdev, PCI_D0); | ||
1563 | |||
1564 | if (!netif_running(dev)) | ||
1565 | goto out; | ||
1566 | |||
1567 | /* Interrupts already disabled by sc92031_suspend */ | ||
1568 | spin_lock(&priv->lock); | ||
1569 | |||
1570 | _sc92031_reset(dev); | ||
1571 | mmiowb(); | ||
1572 | |||
1573 | spin_unlock(&priv->lock); | ||
1574 | sc92031_enable_interrupts(dev); | ||
1575 | |||
1576 | netif_device_attach(dev); | ||
1577 | |||
1578 | if (netif_carrier_ok(dev)) | ||
1579 | netif_wake_queue(dev); | ||
1580 | else | ||
1581 | netif_tx_disable(dev); | ||
1582 | |||
1583 | out: | ||
1584 | return 0; | ||
1585 | } | ||
1586 | |||
1587 | static struct pci_device_id sc92031_pci_device_id_table[] __devinitdata = { | ||
1588 | { PCI_DEVICE(PCI_VENDOR_ID_SILAN, PCI_DEVICE_ID_SILAN_SC92031) }, | ||
1589 | { PCI_DEVICE(PCI_VENDOR_ID_SILAN, PCI_DEVICE_ID_SILAN_8139D) }, | ||
1590 | { 0, } | ||
1591 | }; | ||
1592 | MODULE_DEVICE_TABLE(pci, sc92031_pci_device_id_table); | ||
1593 | |||
1594 | static struct pci_driver sc92031_pci_driver = { | ||
1595 | .name = SC92031_NAME, | ||
1596 | .id_table = sc92031_pci_device_id_table, | ||
1597 | .probe = sc92031_probe, | ||
1598 | .remove = __devexit_p(sc92031_remove), | ||
1599 | .suspend = sc92031_suspend, | ||
1600 | .resume = sc92031_resume, | ||
1601 | }; | ||
1602 | |||
1603 | static int __init sc92031_init(void) | ||
1604 | { | ||
1605 | printk(KERN_INFO SC92031_DESCRIPTION " " SC92031_VERSION "\n"); | ||
1606 | return pci_register_driver(&sc92031_pci_driver); | ||
1607 | } | ||
1608 | |||
1609 | static void __exit sc92031_exit(void) | ||
1610 | { | ||
1611 | pci_unregister_driver(&sc92031_pci_driver); | ||
1612 | } | ||
1613 | |||
1614 | module_init(sc92031_init); | ||
1615 | module_exit(sc92031_exit); | ||
1616 | |||
1617 | MODULE_LICENSE("GPL"); | ||
1618 | MODULE_AUTHOR("Cesar Eduardo Barros <cesarb@cesarb.net>"); | ||
1619 | MODULE_DESCRIPTION(SC92031_DESCRIPTION); | ||
1620 | MODULE_VERSION(SC92031_VERSION); | ||