Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* typhoon.c: A Linux Ethernet device driver for 3Com 3CR990 family of NICs */ |
| 2 | /* |
| 3 | Written 2002-2004 by David Dillow <dave@thedillows.org> |
| 4 | Based on code written 1998-2000 by Donald Becker <becker@scyld.com> and |
| 5 | Linux 2.2.x driver by David P. McLean <davidpmclean@yahoo.com>. |
| 6 | |
| 7 | This software may be used and distributed according to the terms of |
| 8 | the GNU General Public License (GPL), incorporated herein by reference. |
| 9 | Drivers based on or derived from this code fall under the GPL and must |
| 10 | retain the authorship, copyright and license notice. This file is not |
| 11 | a complete program and may only be used when the entire operating |
| 12 | system is licensed under the GPL. |
| 13 | |
| 14 | This software is available on a public web site. It may enable |
| 15 | cryptographic capabilities of the 3Com hardware, and may be |
| 16 | exported from the United States under License Exception "TSU" |
| 17 | pursuant to 15 C.F.R. Section 740.13(e). |
| 18 | |
| 19 | This work was funded by the National Library of Medicine under |
| 20 | the Department of Energy project number 0274DD06D1 and NLM project |
| 21 | number Y1-LM-2015-01. |
| 22 | |
| 23 | This driver is designed for the 3Com 3CR990 Family of cards with the |
| 24 | 3XP Processor. It has been tested on x86 and sparc64. |
| 25 | |
| 26 | KNOWN ISSUES: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | *) Cannot DMA Rx packets to a 2 byte aligned address. Also firmware |
| 28 | issue. Hopefully 3Com will fix it. |
| 29 | *) Waiting for a command response takes 8ms due to non-preemptable |
| 30 | polling. Only significant for getting stats and creating |
| 31 | SAs, but an ugly wart never the less. |
| 32 | |
| 33 | TODO: |
| 34 | *) Doesn't do IPSEC offloading. Yet. Keep yer pants on, it's coming. |
| 35 | *) Add more support for ethtool (especially for NIC stats) |
| 36 | *) Allow disabling of RX checksum offloading |
| 37 | *) Fix MAC changing to work while the interface is up |
| 38 | (Need to put commands on the TX ring, which changes |
| 39 | the locking) |
| 40 | *) Add in FCS to {rx,tx}_bytes, since the hardware doesn't. See |
| 41 | http://oss.sgi.com/cgi-bin/mesg.cgi?a=netdev&i=20031215152211.7003fe8e.rddunlap%40osdl.org |
| 42 | */ |
| 43 | |
| 44 | /* Set the copy breakpoint for the copy-only-tiny-frames scheme. |
| 45 | * Setting to > 1518 effectively disables this feature. |
| 46 | */ |
| 47 | static int rx_copybreak = 200; |
| 48 | |
| 49 | /* Should we use MMIO or Port IO? |
| 50 | * 0: Port IO |
| 51 | * 1: MMIO |
| 52 | * 2: Try MMIO, fallback to Port IO |
| 53 | */ |
| 54 | static unsigned int use_mmio = 2; |
| 55 | |
| 56 | /* end user-configurable values */ |
| 57 | |
| 58 | /* Maximum number of multicast addresses to filter (vs. rx-all-multicast). |
| 59 | */ |
| 60 | static const int multicast_filter_limit = 32; |
| 61 | |
| 62 | /* Operational parameters that are set at compile time. */ |
| 63 | |
| 64 | /* Keep the ring sizes a power of two for compile efficiency. |
| 65 | * The compiler will convert <unsigned>'%'<2^N> into a bit mask. |
| 66 | * Making the Tx ring too large decreases the effectiveness of channel |
| 67 | * bonding and packet priority. |
| 68 | * There are no ill effects from too-large receive rings. |
| 69 | * |
| 70 | * We don't currently use the Hi Tx ring so, don't make it very big. |
| 71 | * |
| 72 | * Beware that if we start using the Hi Tx ring, we will need to change |
| 73 | * typhoon_num_free_tx() and typhoon_tx_complete() to account for that. |
| 74 | */ |
| 75 | #define TXHI_ENTRIES 2 |
| 76 | #define TXLO_ENTRIES 128 |
| 77 | #define RX_ENTRIES 32 |
| 78 | #define COMMAND_ENTRIES 16 |
| 79 | #define RESPONSE_ENTRIES 32 |
| 80 | |
| 81 | #define COMMAND_RING_SIZE (COMMAND_ENTRIES * sizeof(struct cmd_desc)) |
| 82 | #define RESPONSE_RING_SIZE (RESPONSE_ENTRIES * sizeof(struct resp_desc)) |
| 83 | |
| 84 | /* The 3XP will preload and remove 64 entries from the free buffer |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 85 | * list, and we need one entry to keep the ring from wrapping, so |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | * to keep this a power of two, we use 128 entries. |
| 87 | */ |
| 88 | #define RXFREE_ENTRIES 128 |
| 89 | #define RXENT_ENTRIES (RXFREE_ENTRIES - 1) |
| 90 | |
| 91 | /* Operational parameters that usually are not changed. */ |
| 92 | |
| 93 | /* Time in jiffies before concluding the transmitter is hung. */ |
| 94 | #define TX_TIMEOUT (2*HZ) |
| 95 | |
| 96 | #define PKT_BUF_SZ 1536 |
David Dillow | a8c9a53 | 2009-03-02 22:15:09 -0800 | [diff] [blame] | 97 | #define FIRMWARE_NAME "3com/typhoon.bin" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 99 | #define pr_fmt(fmt) KBUILD_MODNAME " " fmt |
| 100 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | #include <linux/module.h> |
| 102 | #include <linux/kernel.h> |
Alexey Dobriyan | d43c36d | 2009-10-07 17:09:06 +0400 | [diff] [blame] | 103 | #include <linux/sched.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | #include <linux/string.h> |
| 105 | #include <linux/timer.h> |
| 106 | #include <linux/errno.h> |
| 107 | #include <linux/ioport.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | #include <linux/interrupt.h> |
| 109 | #include <linux/pci.h> |
| 110 | #include <linux/netdevice.h> |
| 111 | #include <linux/etherdevice.h> |
| 112 | #include <linux/skbuff.h> |
Al Viro | d7fe0f2 | 2006-12-03 23:15:30 -0500 | [diff] [blame] | 113 | #include <linux/mm.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | #include <linux/init.h> |
| 115 | #include <linux/delay.h> |
| 116 | #include <linux/ethtool.h> |
| 117 | #include <linux/if_vlan.h> |
| 118 | #include <linux/crc32.h> |
| 119 | #include <linux/bitops.h> |
| 120 | #include <asm/processor.h> |
| 121 | #include <asm/io.h> |
| 122 | #include <asm/uaccess.h> |
| 123 | #include <linux/in6.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | #include <linux/dma-mapping.h> |
Ben Hutchings | b775a75 | 2009-02-26 23:21:23 -0800 | [diff] [blame] | 125 | #include <linux/firmware.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | |
| 127 | #include "typhoon.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | MODULE_AUTHOR("David Dillow <dave@thedillows.org>"); |
David S. Miller | 2505c54 | 2011-01-24 15:11:02 -0800 | [diff] [blame] | 130 | MODULE_VERSION("1.0"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | MODULE_LICENSE("GPL"); |
Ben Hutchings | b775a75 | 2009-02-26 23:21:23 -0800 | [diff] [blame] | 132 | MODULE_FIRMWARE(FIRMWARE_NAME); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | MODULE_DESCRIPTION("3Com Typhoon Family (3C990, 3CR990, and variants)"); |
| 134 | MODULE_PARM_DESC(rx_copybreak, "Packets smaller than this are copied and " |
| 135 | "the buffer given back to the NIC. Default " |
| 136 | "is 200."); |
| 137 | MODULE_PARM_DESC(use_mmio, "Use MMIO (1) or PIO(0) to access the NIC. " |
| 138 | "Default is to try MMIO and fallback to PIO."); |
| 139 | module_param(rx_copybreak, int, 0); |
| 140 | module_param(use_mmio, int, 0); |
| 141 | |
| 142 | #if defined(NETIF_F_TSO) && MAX_SKB_FRAGS > 32 |
| 143 | #warning Typhoon only supports 32 entries in its SG list for TSO, disabling TSO |
| 144 | #undef NETIF_F_TSO |
| 145 | #endif |
| 146 | |
| 147 | #if TXLO_ENTRIES <= (2 * MAX_SKB_FRAGS) |
| 148 | #error TX ring too small! |
| 149 | #endif |
| 150 | |
| 151 | struct typhoon_card_info { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 152 | const char *name; |
| 153 | const int capabilities; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | }; |
| 155 | |
| 156 | #define TYPHOON_CRYPTO_NONE 0x00 |
| 157 | #define TYPHOON_CRYPTO_DES 0x01 |
| 158 | #define TYPHOON_CRYPTO_3DES 0x02 |
| 159 | #define TYPHOON_CRYPTO_VARIABLE 0x04 |
| 160 | #define TYPHOON_FIBER 0x08 |
| 161 | #define TYPHOON_WAKEUP_NEEDS_RESET 0x10 |
| 162 | |
| 163 | enum typhoon_cards { |
| 164 | TYPHOON_TX = 0, TYPHOON_TX95, TYPHOON_TX97, TYPHOON_SVR, |
| 165 | TYPHOON_SVR95, TYPHOON_SVR97, TYPHOON_TXM, TYPHOON_BSVR, |
| 166 | TYPHOON_FX95, TYPHOON_FX97, TYPHOON_FX95SVR, TYPHOON_FX97SVR, |
| 167 | TYPHOON_FXM, |
| 168 | }; |
| 169 | |
| 170 | /* directly indexed by enum typhoon_cards, above */ |
Andrew Morton | 952b349 | 2008-02-09 23:40:34 -0800 | [diff] [blame] | 171 | static struct typhoon_card_info typhoon_card_info[] __devinitdata = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | { "3Com Typhoon (3C990-TX)", |
| 173 | TYPHOON_CRYPTO_NONE}, |
| 174 | { "3Com Typhoon (3CR990-TX-95)", |
| 175 | TYPHOON_CRYPTO_DES}, |
| 176 | { "3Com Typhoon (3CR990-TX-97)", |
| 177 | TYPHOON_CRYPTO_DES | TYPHOON_CRYPTO_3DES}, |
| 178 | { "3Com Typhoon (3C990SVR)", |
| 179 | TYPHOON_CRYPTO_NONE}, |
| 180 | { "3Com Typhoon (3CR990SVR95)", |
| 181 | TYPHOON_CRYPTO_DES}, |
| 182 | { "3Com Typhoon (3CR990SVR97)", |
| 183 | TYPHOON_CRYPTO_DES | TYPHOON_CRYPTO_3DES}, |
| 184 | { "3Com Typhoon2 (3C990B-TX-M)", |
| 185 | TYPHOON_CRYPTO_VARIABLE}, |
| 186 | { "3Com Typhoon2 (3C990BSVR)", |
| 187 | TYPHOON_CRYPTO_VARIABLE}, |
| 188 | { "3Com Typhoon (3CR990-FX-95)", |
| 189 | TYPHOON_CRYPTO_DES | TYPHOON_FIBER}, |
| 190 | { "3Com Typhoon (3CR990-FX-97)", |
| 191 | TYPHOON_CRYPTO_DES | TYPHOON_CRYPTO_3DES | TYPHOON_FIBER}, |
| 192 | { "3Com Typhoon (3CR990-FX-95 Server)", |
| 193 | TYPHOON_CRYPTO_DES | TYPHOON_FIBER}, |
| 194 | { "3Com Typhoon (3CR990-FX-97 Server)", |
| 195 | TYPHOON_CRYPTO_DES | TYPHOON_CRYPTO_3DES | TYPHOON_FIBER}, |
| 196 | { "3Com Typhoon2 (3C990B-FX-97)", |
| 197 | TYPHOON_CRYPTO_VARIABLE | TYPHOON_FIBER}, |
| 198 | }; |
| 199 | |
| 200 | /* Notes on the new subsystem numbering scheme: |
Alexey Dobriyan | 7f927fc | 2006-03-28 01:56:53 -0800 | [diff] [blame] | 201 | * bits 0-1 indicate crypto capabilities: (0) variable, (1) DES, or (2) 3DES |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | * bit 4 indicates if this card has secured firmware (we don't support it) |
| 203 | * bit 8 indicates if this is a (0) copper or (1) fiber card |
| 204 | * bits 12-16 indicate card type: (0) client and (1) server |
| 205 | */ |
Alexey Dobriyan | a3aa188 | 2010-01-07 11:58:11 +0000 | [diff] [blame] | 206 | static DEFINE_PCI_DEVICE_TABLE(typhoon_pci_tbl) = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990, |
| 208 | PCI_ANY_ID, PCI_ANY_ID, 0, 0,TYPHOON_TX }, |
| 209 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990_TX_95, |
| 210 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPHOON_TX95 }, |
| 211 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990_TX_97, |
| 212 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPHOON_TX97 }, |
| 213 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990B, |
| 214 | PCI_ANY_ID, 0x1000, 0, 0, TYPHOON_TXM }, |
| 215 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990B, |
| 216 | PCI_ANY_ID, 0x1102, 0, 0, TYPHOON_FXM }, |
| 217 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990B, |
| 218 | PCI_ANY_ID, 0x2000, 0, 0, TYPHOON_BSVR }, |
| 219 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990_FX, |
| 220 | PCI_ANY_ID, 0x1101, 0, 0, TYPHOON_FX95 }, |
| 221 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990_FX, |
| 222 | PCI_ANY_ID, 0x1102, 0, 0, TYPHOON_FX97 }, |
| 223 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990_FX, |
| 224 | PCI_ANY_ID, 0x2101, 0, 0, TYPHOON_FX95SVR }, |
| 225 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990_FX, |
| 226 | PCI_ANY_ID, 0x2102, 0, 0, TYPHOON_FX97SVR }, |
| 227 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990SVR95, |
| 228 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPHOON_SVR95 }, |
| 229 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990SVR97, |
| 230 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPHOON_SVR97 }, |
| 231 | { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3CR990SVR, |
| 232 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPHOON_SVR }, |
| 233 | { 0, } |
| 234 | }; |
| 235 | MODULE_DEVICE_TABLE(pci, typhoon_pci_tbl); |
| 236 | |
| 237 | /* Define the shared memory area |
| 238 | * Align everything the 3XP will normally be using. |
| 239 | * We'll need to move/align txHi if we start using that ring. |
| 240 | */ |
| 241 | #define __3xp_aligned ____cacheline_aligned |
| 242 | struct typhoon_shared { |
| 243 | struct typhoon_interface iface; |
| 244 | struct typhoon_indexes indexes __3xp_aligned; |
| 245 | struct tx_desc txLo[TXLO_ENTRIES] __3xp_aligned; |
| 246 | struct rx_desc rxLo[RX_ENTRIES] __3xp_aligned; |
| 247 | struct rx_desc rxHi[RX_ENTRIES] __3xp_aligned; |
| 248 | struct cmd_desc cmd[COMMAND_ENTRIES] __3xp_aligned; |
| 249 | struct resp_desc resp[RESPONSE_ENTRIES] __3xp_aligned; |
| 250 | struct rx_free rxBuff[RXFREE_ENTRIES] __3xp_aligned; |
| 251 | u32 zeroWord; |
| 252 | struct tx_desc txHi[TXHI_ENTRIES]; |
Eric Dumazet | ba2d358 | 2010-06-02 18:10:09 +0000 | [diff] [blame] | 253 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | |
| 255 | struct rxbuff_ent { |
| 256 | struct sk_buff *skb; |
| 257 | dma_addr_t dma_addr; |
| 258 | }; |
| 259 | |
| 260 | struct typhoon { |
| 261 | /* Tx cache line section */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 262 | struct transmit_ring txLoRing ____cacheline_aligned; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | struct pci_dev * tx_pdev; |
| 264 | void __iomem *tx_ioaddr; |
| 265 | u32 txlo_dma_addr; |
| 266 | |
| 267 | /* Irq/Rx cache line section */ |
| 268 | void __iomem *ioaddr ____cacheline_aligned; |
| 269 | struct typhoon_indexes *indexes; |
| 270 | u8 awaiting_resp; |
| 271 | u8 duplex; |
| 272 | u8 speed; |
| 273 | u8 card_state; |
| 274 | struct basic_ring rxLoRing; |
| 275 | struct pci_dev * pdev; |
| 276 | struct net_device * dev; |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 277 | struct napi_struct napi; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | struct basic_ring rxHiRing; |
| 279 | struct basic_ring rxBuffRing; |
| 280 | struct rxbuff_ent rxbuffers[RXENT_ENTRIES]; |
| 281 | |
| 282 | /* general section */ |
| 283 | spinlock_t command_lock ____cacheline_aligned; |
| 284 | struct basic_ring cmdRing; |
| 285 | struct basic_ring respRing; |
| 286 | struct net_device_stats stats; |
| 287 | struct net_device_stats stats_saved; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | struct typhoon_shared * shared; |
| 289 | dma_addr_t shared_dma; |
Al Viro | 03a710f | 2007-08-23 00:44:39 -0400 | [diff] [blame] | 290 | __le16 xcvr_select; |
| 291 | __le16 wol_events; |
| 292 | __le32 offload; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | |
| 294 | /* unused stuff (future use) */ |
| 295 | int capabilities; |
| 296 | struct transmit_ring txHiRing; |
| 297 | }; |
| 298 | |
| 299 | enum completion_wait_values { |
| 300 | NoWait = 0, WaitNoSleep, WaitSleep, |
| 301 | }; |
| 302 | |
| 303 | /* These are the values for the typhoon.card_state variable. |
| 304 | * These determine where the statistics will come from in get_stats(). |
| 305 | * The sleep image does not support the statistics we need. |
| 306 | */ |
| 307 | enum state_values { |
| 308 | Sleeping = 0, Running, |
| 309 | }; |
| 310 | |
| 311 | /* PCI writes are not guaranteed to be posted in order, but outstanding writes |
| 312 | * cannot pass a read, so this forces current writes to post. |
| 313 | */ |
| 314 | #define typhoon_post_pci_writes(x) \ |
| 315 | do { if(likely(use_mmio)) ioread32(x+TYPHOON_REG_HEARTBEAT); } while(0) |
| 316 | |
| 317 | /* We'll wait up to six seconds for a reset, and half a second normally. |
| 318 | */ |
| 319 | #define TYPHOON_UDELAY 50 |
| 320 | #define TYPHOON_RESET_TIMEOUT_SLEEP (6 * HZ) |
| 321 | #define TYPHOON_RESET_TIMEOUT_NOSLEEP ((6 * 1000000) / TYPHOON_UDELAY) |
| 322 | #define TYPHOON_WAIT_TIMEOUT ((1000000 / 2) / TYPHOON_UDELAY) |
| 323 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | #if defined(NETIF_F_TSO) |
Herbert Xu | 7967168 | 2006-06-22 02:40:14 -0700 | [diff] [blame] | 325 | #define skb_tso_size(x) (skb_shinfo(x)->gso_size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | #define TSO_NUM_DESCRIPTORS 2 |
| 327 | #define TSO_OFFLOAD_ON TYPHOON_OFFLOAD_TCP_SEGMENT |
| 328 | #else |
| 329 | #define NETIF_F_TSO 0 |
| 330 | #define skb_tso_size(x) 0 |
| 331 | #define TSO_NUM_DESCRIPTORS 0 |
| 332 | #define TSO_OFFLOAD_ON 0 |
| 333 | #endif |
| 334 | |
| 335 | static inline void |
| 336 | typhoon_inc_index(u32 *index, const int count, const int num_entries) |
| 337 | { |
| 338 | /* Increment a ring index -- we can use this for all rings execept |
| 339 | * the Rx rings, as they use different size descriptors |
| 340 | * otherwise, everything is the same size as a cmd_desc |
| 341 | */ |
| 342 | *index += count * sizeof(struct cmd_desc); |
| 343 | *index %= num_entries * sizeof(struct cmd_desc); |
| 344 | } |
| 345 | |
| 346 | static inline void |
| 347 | typhoon_inc_cmd_index(u32 *index, const int count) |
| 348 | { |
| 349 | typhoon_inc_index(index, count, COMMAND_ENTRIES); |
| 350 | } |
| 351 | |
| 352 | static inline void |
| 353 | typhoon_inc_resp_index(u32 *index, const int count) |
| 354 | { |
| 355 | typhoon_inc_index(index, count, RESPONSE_ENTRIES); |
| 356 | } |
| 357 | |
| 358 | static inline void |
| 359 | typhoon_inc_rxfree_index(u32 *index, const int count) |
| 360 | { |
| 361 | typhoon_inc_index(index, count, RXFREE_ENTRIES); |
| 362 | } |
| 363 | |
| 364 | static inline void |
| 365 | typhoon_inc_tx_index(u32 *index, const int count) |
| 366 | { |
| 367 | /* if we start using the Hi Tx ring, this needs updateing */ |
| 368 | typhoon_inc_index(index, count, TXLO_ENTRIES); |
| 369 | } |
| 370 | |
| 371 | static inline void |
| 372 | typhoon_inc_rx_index(u32 *index, const int count) |
| 373 | { |
| 374 | /* sizeof(struct rx_desc) != sizeof(struct cmd_desc) */ |
| 375 | *index += count * sizeof(struct rx_desc); |
| 376 | *index %= RX_ENTRIES * sizeof(struct rx_desc); |
| 377 | } |
| 378 | |
| 379 | static int |
| 380 | typhoon_reset(void __iomem *ioaddr, int wait_type) |
| 381 | { |
| 382 | int i, err = 0; |
| 383 | int timeout; |
| 384 | |
| 385 | if(wait_type == WaitNoSleep) |
| 386 | timeout = TYPHOON_RESET_TIMEOUT_NOSLEEP; |
| 387 | else |
| 388 | timeout = TYPHOON_RESET_TIMEOUT_SLEEP; |
| 389 | |
| 390 | iowrite32(TYPHOON_INTR_ALL, ioaddr + TYPHOON_REG_INTR_MASK); |
| 391 | iowrite32(TYPHOON_INTR_ALL, ioaddr + TYPHOON_REG_INTR_STATUS); |
| 392 | |
| 393 | iowrite32(TYPHOON_RESET_ALL, ioaddr + TYPHOON_REG_SOFT_RESET); |
| 394 | typhoon_post_pci_writes(ioaddr); |
| 395 | udelay(1); |
| 396 | iowrite32(TYPHOON_RESET_NONE, ioaddr + TYPHOON_REG_SOFT_RESET); |
| 397 | |
| 398 | if(wait_type != NoWait) { |
| 399 | for(i = 0; i < timeout; i++) { |
| 400 | if(ioread32(ioaddr + TYPHOON_REG_STATUS) == |
| 401 | TYPHOON_STATUS_WAITING_FOR_HOST) |
| 402 | goto out; |
| 403 | |
Nishanth Aravamudan | 3173c89 | 2005-09-11 02:09:55 -0700 | [diff] [blame] | 404 | if(wait_type == WaitSleep) |
| 405 | schedule_timeout_uninterruptible(1); |
| 406 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | udelay(TYPHOON_UDELAY); |
| 408 | } |
| 409 | |
| 410 | err = -ETIMEDOUT; |
| 411 | } |
| 412 | |
| 413 | out: |
| 414 | iowrite32(TYPHOON_INTR_ALL, ioaddr + TYPHOON_REG_INTR_MASK); |
| 415 | iowrite32(TYPHOON_INTR_ALL, ioaddr + TYPHOON_REG_INTR_STATUS); |
| 416 | |
| 417 | /* The 3XP seems to need a little extra time to complete the load |
| 418 | * of the sleep image before we can reliably boot it. Failure to |
| 419 | * do this occasionally results in a hung adapter after boot in |
| 420 | * typhoon_init_one() while trying to read the MAC address or |
| 421 | * putting the card to sleep. 3Com's driver waits 5ms, but |
| 422 | * that seems to be overkill. However, if we can sleep, we might |
| 423 | * as well give it that much time. Otherwise, we'll give it 500us, |
| 424 | * which should be enough (I've see it work well at 100us, but still |
| 425 | * saw occasional problems.) |
| 426 | */ |
| 427 | if(wait_type == WaitSleep) |
| 428 | msleep(5); |
| 429 | else |
| 430 | udelay(500); |
| 431 | return err; |
| 432 | } |
| 433 | |
| 434 | static int |
| 435 | typhoon_wait_status(void __iomem *ioaddr, u32 wait_value) |
| 436 | { |
| 437 | int i, err = 0; |
| 438 | |
| 439 | for(i = 0; i < TYPHOON_WAIT_TIMEOUT; i++) { |
| 440 | if(ioread32(ioaddr + TYPHOON_REG_STATUS) == wait_value) |
| 441 | goto out; |
| 442 | udelay(TYPHOON_UDELAY); |
| 443 | } |
| 444 | |
| 445 | err = -ETIMEDOUT; |
| 446 | |
| 447 | out: |
| 448 | return err; |
| 449 | } |
| 450 | |
| 451 | static inline void |
| 452 | typhoon_media_status(struct net_device *dev, struct resp_desc *resp) |
| 453 | { |
| 454 | if(resp->parm1 & TYPHOON_MEDIA_STAT_NO_LINK) |
| 455 | netif_carrier_off(dev); |
| 456 | else |
| 457 | netif_carrier_on(dev); |
| 458 | } |
| 459 | |
| 460 | static inline void |
| 461 | typhoon_hello(struct typhoon *tp) |
| 462 | { |
| 463 | struct basic_ring *ring = &tp->cmdRing; |
| 464 | struct cmd_desc *cmd; |
| 465 | |
| 466 | /* We only get a hello request if we've not sent anything to the |
| 467 | * card in a long while. If the lock is held, then we're in the |
| 468 | * process of issuing a command, so we don't need to respond. |
| 469 | */ |
| 470 | if(spin_trylock(&tp->command_lock)) { |
| 471 | cmd = (struct cmd_desc *)(ring->ringBase + ring->lastWrite); |
| 472 | typhoon_inc_cmd_index(&ring->lastWrite, 1); |
| 473 | |
| 474 | INIT_COMMAND_NO_RESPONSE(cmd, TYPHOON_CMD_HELLO_RESP); |
David Dillow | 5fe88ea | 2010-03-04 04:37:16 +0000 | [diff] [blame] | 475 | wmb(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | iowrite32(ring->lastWrite, tp->ioaddr + TYPHOON_REG_CMD_READY); |
| 477 | spin_unlock(&tp->command_lock); |
| 478 | } |
| 479 | } |
| 480 | |
| 481 | static int |
| 482 | typhoon_process_response(struct typhoon *tp, int resp_size, |
| 483 | struct resp_desc *resp_save) |
| 484 | { |
| 485 | struct typhoon_indexes *indexes = tp->indexes; |
| 486 | struct resp_desc *resp; |
| 487 | u8 *base = tp->respRing.ringBase; |
| 488 | int count, len, wrap_len; |
| 489 | u32 cleared; |
| 490 | u32 ready; |
| 491 | |
| 492 | cleared = le32_to_cpu(indexes->respCleared); |
| 493 | ready = le32_to_cpu(indexes->respReady); |
| 494 | while(cleared != ready) { |
| 495 | resp = (struct resp_desc *)(base + cleared); |
| 496 | count = resp->numDesc + 1; |
| 497 | if(resp_save && resp->seqNo) { |
| 498 | if(count > resp_size) { |
| 499 | resp_save->flags = TYPHOON_RESP_ERROR; |
| 500 | goto cleanup; |
| 501 | } |
| 502 | |
| 503 | wrap_len = 0; |
| 504 | len = count * sizeof(*resp); |
| 505 | if(unlikely(cleared + len > RESPONSE_RING_SIZE)) { |
| 506 | wrap_len = cleared + len - RESPONSE_RING_SIZE; |
| 507 | len = RESPONSE_RING_SIZE - cleared; |
| 508 | } |
| 509 | |
| 510 | memcpy(resp_save, resp, len); |
| 511 | if(unlikely(wrap_len)) { |
| 512 | resp_save += len / sizeof(*resp); |
| 513 | memcpy(resp_save, base, wrap_len); |
| 514 | } |
| 515 | |
| 516 | resp_save = NULL; |
| 517 | } else if(resp->cmd == TYPHOON_CMD_READ_MEDIA_STATUS) { |
| 518 | typhoon_media_status(tp->dev, resp); |
| 519 | } else if(resp->cmd == TYPHOON_CMD_HELLO_RESP) { |
| 520 | typhoon_hello(tp); |
| 521 | } else { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 522 | netdev_err(tp->dev, |
| 523 | "dumping unexpected response 0x%04x:%d:0x%02x:0x%04x:%08x:%08x\n", |
| 524 | le16_to_cpu(resp->cmd), |
| 525 | resp->numDesc, resp->flags, |
| 526 | le16_to_cpu(resp->parm1), |
| 527 | le32_to_cpu(resp->parm2), |
| 528 | le32_to_cpu(resp->parm3)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 529 | } |
| 530 | |
| 531 | cleanup: |
| 532 | typhoon_inc_resp_index(&cleared, count); |
| 533 | } |
| 534 | |
| 535 | indexes->respCleared = cpu_to_le32(cleared); |
| 536 | wmb(); |
Eric Dumazet | 807540b | 2010-09-23 05:40:09 +0000 | [diff] [blame] | 537 | return resp_save == NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | } |
| 539 | |
| 540 | static inline int |
| 541 | typhoon_num_free(int lastWrite, int lastRead, int ringSize) |
| 542 | { |
| 543 | /* this works for all descriptors but rx_desc, as they are a |
| 544 | * different size than the cmd_desc -- everyone else is the same |
| 545 | */ |
| 546 | lastWrite /= sizeof(struct cmd_desc); |
| 547 | lastRead /= sizeof(struct cmd_desc); |
| 548 | return (ringSize + lastRead - lastWrite - 1) % ringSize; |
| 549 | } |
| 550 | |
| 551 | static inline int |
| 552 | typhoon_num_free_cmd(struct typhoon *tp) |
| 553 | { |
| 554 | int lastWrite = tp->cmdRing.lastWrite; |
| 555 | int cmdCleared = le32_to_cpu(tp->indexes->cmdCleared); |
| 556 | |
| 557 | return typhoon_num_free(lastWrite, cmdCleared, COMMAND_ENTRIES); |
| 558 | } |
| 559 | |
| 560 | static inline int |
| 561 | typhoon_num_free_resp(struct typhoon *tp) |
| 562 | { |
| 563 | int respReady = le32_to_cpu(tp->indexes->respReady); |
| 564 | int respCleared = le32_to_cpu(tp->indexes->respCleared); |
| 565 | |
| 566 | return typhoon_num_free(respReady, respCleared, RESPONSE_ENTRIES); |
| 567 | } |
| 568 | |
| 569 | static inline int |
| 570 | typhoon_num_free_tx(struct transmit_ring *ring) |
| 571 | { |
| 572 | /* if we start using the Hi Tx ring, this needs updating */ |
| 573 | return typhoon_num_free(ring->lastWrite, ring->lastRead, TXLO_ENTRIES); |
| 574 | } |
| 575 | |
| 576 | static int |
| 577 | typhoon_issue_command(struct typhoon *tp, int num_cmd, struct cmd_desc *cmd, |
| 578 | int num_resp, struct resp_desc *resp) |
| 579 | { |
| 580 | struct typhoon_indexes *indexes = tp->indexes; |
| 581 | struct basic_ring *ring = &tp->cmdRing; |
| 582 | struct resp_desc local_resp; |
| 583 | int i, err = 0; |
| 584 | int got_resp; |
| 585 | int freeCmd, freeResp; |
| 586 | int len, wrap_len; |
| 587 | |
| 588 | spin_lock(&tp->command_lock); |
| 589 | |
| 590 | freeCmd = typhoon_num_free_cmd(tp); |
| 591 | freeResp = typhoon_num_free_resp(tp); |
| 592 | |
| 593 | if(freeCmd < num_cmd || freeResp < num_resp) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 594 | netdev_err(tp->dev, "no descs for cmd, had (needed) %d (%d) cmd, %d (%d) resp\n", |
| 595 | freeCmd, num_cmd, freeResp, num_resp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | err = -ENOMEM; |
| 597 | goto out; |
| 598 | } |
| 599 | |
| 600 | if(cmd->flags & TYPHOON_CMD_RESPOND) { |
| 601 | /* If we're expecting a response, but the caller hasn't given |
| 602 | * us a place to put it, we'll provide one. |
| 603 | */ |
| 604 | tp->awaiting_resp = 1; |
| 605 | if(resp == NULL) { |
| 606 | resp = &local_resp; |
| 607 | num_resp = 1; |
| 608 | } |
| 609 | } |
| 610 | |
| 611 | wrap_len = 0; |
| 612 | len = num_cmd * sizeof(*cmd); |
| 613 | if(unlikely(ring->lastWrite + len > COMMAND_RING_SIZE)) { |
| 614 | wrap_len = ring->lastWrite + len - COMMAND_RING_SIZE; |
| 615 | len = COMMAND_RING_SIZE - ring->lastWrite; |
| 616 | } |
| 617 | |
| 618 | memcpy(ring->ringBase + ring->lastWrite, cmd, len); |
| 619 | if(unlikely(wrap_len)) { |
| 620 | struct cmd_desc *wrap_ptr = cmd; |
| 621 | wrap_ptr += len / sizeof(*cmd); |
| 622 | memcpy(ring->ringBase, wrap_ptr, wrap_len); |
| 623 | } |
| 624 | |
| 625 | typhoon_inc_cmd_index(&ring->lastWrite, num_cmd); |
| 626 | |
Michael Opdenacker | 59c5159 | 2007-05-09 08:57:56 +0200 | [diff] [blame] | 627 | /* "I feel a presence... another warrior is on the mesa." |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 628 | */ |
| 629 | wmb(); |
| 630 | iowrite32(ring->lastWrite, tp->ioaddr + TYPHOON_REG_CMD_READY); |
| 631 | typhoon_post_pci_writes(tp->ioaddr); |
| 632 | |
| 633 | if((cmd->flags & TYPHOON_CMD_RESPOND) == 0) |
| 634 | goto out; |
| 635 | |
| 636 | /* Ugh. We'll be here about 8ms, spinning our thumbs, unable to |
| 637 | * preempt or do anything other than take interrupts. So, don't |
| 638 | * wait for a response unless you have to. |
| 639 | * |
| 640 | * I've thought about trying to sleep here, but we're called |
| 641 | * from many contexts that don't allow that. Also, given the way |
| 642 | * 3Com has implemented irq coalescing, we would likely timeout -- |
| 643 | * this has been observed in real life! |
| 644 | * |
| 645 | * The big killer is we have to wait to get stats from the card, |
| 646 | * though we could go to a periodic refresh of those if we don't |
| 647 | * mind them getting somewhat stale. The rest of the waiting |
| 648 | * commands occur during open/close/suspend/resume, so they aren't |
| 649 | * time critical. Creating SAs in the future will also have to |
| 650 | * wait here. |
| 651 | */ |
| 652 | got_resp = 0; |
| 653 | for(i = 0; i < TYPHOON_WAIT_TIMEOUT && !got_resp; i++) { |
| 654 | if(indexes->respCleared != indexes->respReady) |
| 655 | got_resp = typhoon_process_response(tp, num_resp, |
| 656 | resp); |
| 657 | udelay(TYPHOON_UDELAY); |
| 658 | } |
| 659 | |
| 660 | if(!got_resp) { |
| 661 | err = -ETIMEDOUT; |
| 662 | goto out; |
| 663 | } |
| 664 | |
| 665 | /* Collect the error response even if we don't care about the |
| 666 | * rest of the response |
| 667 | */ |
| 668 | if(resp->flags & TYPHOON_RESP_ERROR) |
| 669 | err = -EIO; |
| 670 | |
| 671 | out: |
| 672 | if(tp->awaiting_resp) { |
| 673 | tp->awaiting_resp = 0; |
| 674 | smp_wmb(); |
| 675 | |
| 676 | /* Ugh. If a response was added to the ring between |
| 677 | * the call to typhoon_process_response() and the clearing |
| 678 | * of tp->awaiting_resp, we could have missed the interrupt |
| 679 | * and it could hang in the ring an indeterminate amount of |
| 680 | * time. So, check for it, and interrupt ourselves if this |
| 681 | * is the case. |
| 682 | */ |
| 683 | if(indexes->respCleared != indexes->respReady) |
| 684 | iowrite32(1, tp->ioaddr + TYPHOON_REG_SELF_INTERRUPT); |
| 685 | } |
| 686 | |
| 687 | spin_unlock(&tp->command_lock); |
| 688 | return err; |
| 689 | } |
| 690 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 691 | static inline void |
| 692 | typhoon_tso_fill(struct sk_buff *skb, struct transmit_ring *txRing, |
| 693 | u32 ring_dma) |
| 694 | { |
| 695 | struct tcpopt_desc *tcpd; |
| 696 | u32 tcpd_offset = ring_dma; |
| 697 | |
| 698 | tcpd = (struct tcpopt_desc *) (txRing->ringBase + txRing->lastWrite); |
| 699 | tcpd_offset += txRing->lastWrite; |
| 700 | tcpd_offset += offsetof(struct tcpopt_desc, bytesTx); |
| 701 | typhoon_inc_tx_index(&txRing->lastWrite, 1); |
| 702 | |
| 703 | tcpd->flags = TYPHOON_OPT_DESC | TYPHOON_OPT_TCP_SEG; |
| 704 | tcpd->numDesc = 1; |
| 705 | tcpd->mss_flags = cpu_to_le16(skb_tso_size(skb)); |
| 706 | tcpd->mss_flags |= TYPHOON_TSO_FIRST | TYPHOON_TSO_LAST; |
| 707 | tcpd->respAddrLo = cpu_to_le32(tcpd_offset); |
| 708 | tcpd->bytesTx = cpu_to_le32(skb->len); |
| 709 | tcpd->status = 0; |
| 710 | } |
| 711 | |
Stephen Hemminger | 61357325 | 2009-08-31 19:50:58 +0000 | [diff] [blame] | 712 | static netdev_tx_t |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 713 | typhoon_start_tx(struct sk_buff *skb, struct net_device *dev) |
| 714 | { |
| 715 | struct typhoon *tp = netdev_priv(dev); |
| 716 | struct transmit_ring *txRing; |
| 717 | struct tx_desc *txd, *first_txd; |
| 718 | dma_addr_t skb_dma; |
| 719 | int numDesc; |
| 720 | |
| 721 | /* we have two rings to choose from, but we only use txLo for now |
| 722 | * If we start using the Hi ring as well, we'll need to update |
| 723 | * typhoon_stop_runtime(), typhoon_interrupt(), typhoon_num_free_tx(), |
Alexey Dobriyan | 7f927fc | 2006-03-28 01:56:53 -0800 | [diff] [blame] | 724 | * and TXHI_ENTRIES to match, as well as update the TSO code below |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | * to get the right DMA address |
| 726 | */ |
| 727 | txRing = &tp->txLoRing; |
| 728 | |
| 729 | /* We need one descriptor for each fragment of the sk_buff, plus the |
| 730 | * one for the ->data area of it. |
| 731 | * |
| 732 | * The docs say a maximum of 16 fragment descriptors per TCP option |
| 733 | * descriptor, then make a new packet descriptor and option descriptor |
| 734 | * for the next 16 fragments. The engineers say just an option |
| 735 | * descriptor is needed. I've tested up to 26 fragments with a single |
| 736 | * packet descriptor/option descriptor combo, so I use that for now. |
| 737 | * |
| 738 | * If problems develop with TSO, check this first. |
| 739 | */ |
| 740 | numDesc = skb_shinfo(skb)->nr_frags + 1; |
Herbert Xu | 89114af | 2006-07-08 13:34:32 -0700 | [diff] [blame] | 741 | if (skb_is_gso(skb)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 742 | numDesc++; |
| 743 | |
| 744 | /* When checking for free space in the ring, we need to also |
| 745 | * account for the initial Tx descriptor, and we always must leave |
| 746 | * at least one descriptor unused in the ring so that it doesn't |
| 747 | * wrap and look empty. |
| 748 | * |
| 749 | * The only time we should loop here is when we hit the race |
| 750 | * between marking the queue awake and updating the cleared index. |
| 751 | * Just loop and it will appear. This comes from the acenic driver. |
| 752 | */ |
| 753 | while(unlikely(typhoon_num_free_tx(txRing) < (numDesc + 2))) |
| 754 | smp_rmb(); |
| 755 | |
| 756 | first_txd = (struct tx_desc *) (txRing->ringBase + txRing->lastWrite); |
| 757 | typhoon_inc_tx_index(&txRing->lastWrite, 1); |
| 758 | |
| 759 | first_txd->flags = TYPHOON_TX_DESC | TYPHOON_DESC_VALID; |
| 760 | first_txd->numDesc = 0; |
| 761 | first_txd->len = 0; |
Al Viro | 71f1bb1 | 2007-12-21 06:21:14 +0000 | [diff] [blame] | 762 | first_txd->tx_addr = (u64)((unsigned long) skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 763 | first_txd->processFlags = 0; |
| 764 | |
Patrick McHardy | 84fa793 | 2006-08-29 16:44:56 -0700 | [diff] [blame] | 765 | if(skb->ip_summed == CHECKSUM_PARTIAL) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 766 | /* The 3XP will figure out if this is UDP/TCP */ |
| 767 | first_txd->processFlags |= TYPHOON_TX_PF_TCP_CHKSUM; |
| 768 | first_txd->processFlags |= TYPHOON_TX_PF_UDP_CHKSUM; |
| 769 | first_txd->processFlags |= TYPHOON_TX_PF_IP_CHKSUM; |
| 770 | } |
| 771 | |
| 772 | if(vlan_tx_tag_present(skb)) { |
| 773 | first_txd->processFlags |= |
| 774 | TYPHOON_TX_PF_INSERT_VLAN | TYPHOON_TX_PF_VLAN_PRIORITY; |
| 775 | first_txd->processFlags |= |
David Dillow | fd59cba | 2010-10-24 10:20:21 +0000 | [diff] [blame] | 776 | cpu_to_le32(htons(vlan_tx_tag_get(skb)) << |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 777 | TYPHOON_TX_PF_VLAN_TAG_SHIFT); |
| 778 | } |
| 779 | |
Herbert Xu | 89114af | 2006-07-08 13:34:32 -0700 | [diff] [blame] | 780 | if (skb_is_gso(skb)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 781 | first_txd->processFlags |= TYPHOON_TX_PF_TCP_SEGMENT; |
| 782 | first_txd->numDesc++; |
| 783 | |
| 784 | typhoon_tso_fill(skb, txRing, tp->txlo_dma_addr); |
| 785 | } |
| 786 | |
| 787 | txd = (struct tx_desc *) (txRing->ringBase + txRing->lastWrite); |
| 788 | typhoon_inc_tx_index(&txRing->lastWrite, 1); |
| 789 | |
| 790 | /* No need to worry about padding packet -- the firmware pads |
| 791 | * it with zeros to ETH_ZLEN for us. |
| 792 | */ |
| 793 | if(skb_shinfo(skb)->nr_frags == 0) { |
| 794 | skb_dma = pci_map_single(tp->tx_pdev, skb->data, skb->len, |
| 795 | PCI_DMA_TODEVICE); |
| 796 | txd->flags = TYPHOON_FRAG_DESC | TYPHOON_DESC_VALID; |
| 797 | txd->len = cpu_to_le16(skb->len); |
Al Viro | 71f1bb1 | 2007-12-21 06:21:14 +0000 | [diff] [blame] | 798 | txd->frag.addr = cpu_to_le32(skb_dma); |
| 799 | txd->frag.addrHi = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 800 | first_txd->numDesc++; |
| 801 | } else { |
| 802 | int i, len; |
| 803 | |
| 804 | len = skb_headlen(skb); |
| 805 | skb_dma = pci_map_single(tp->tx_pdev, skb->data, len, |
| 806 | PCI_DMA_TODEVICE); |
| 807 | txd->flags = TYPHOON_FRAG_DESC | TYPHOON_DESC_VALID; |
| 808 | txd->len = cpu_to_le16(len); |
Al Viro | 71f1bb1 | 2007-12-21 06:21:14 +0000 | [diff] [blame] | 809 | txd->frag.addr = cpu_to_le32(skb_dma); |
| 810 | txd->frag.addrHi = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | first_txd->numDesc++; |
| 812 | |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 813 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { |
| 814 | const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 815 | void *frag_addr; |
| 816 | |
| 817 | txd = (struct tx_desc *) (txRing->ringBase + |
| 818 | txRing->lastWrite); |
| 819 | typhoon_inc_tx_index(&txRing->lastWrite, 1); |
| 820 | |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 821 | len = skb_frag_size(frag); |
Ian Campbell | 2098401 | 2011-09-21 21:53:25 +0000 | [diff] [blame] | 822 | frag_addr = skb_frag_address(frag); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 823 | skb_dma = pci_map_single(tp->tx_pdev, frag_addr, len, |
| 824 | PCI_DMA_TODEVICE); |
| 825 | txd->flags = TYPHOON_FRAG_DESC | TYPHOON_DESC_VALID; |
| 826 | txd->len = cpu_to_le16(len); |
Al Viro | 71f1bb1 | 2007-12-21 06:21:14 +0000 | [diff] [blame] | 827 | txd->frag.addr = cpu_to_le32(skb_dma); |
| 828 | txd->frag.addrHi = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 829 | first_txd->numDesc++; |
| 830 | } |
| 831 | } |
| 832 | |
| 833 | /* Kick the 3XP |
| 834 | */ |
| 835 | wmb(); |
| 836 | iowrite32(txRing->lastWrite, tp->tx_ioaddr + txRing->writeRegister); |
| 837 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 838 | /* If we don't have room to put the worst case packet on the |
| 839 | * queue, then we must stop the queue. We need 2 extra |
| 840 | * descriptors -- one to prevent ring wrap, and one for the |
| 841 | * Tx header. |
| 842 | */ |
| 843 | numDesc = MAX_SKB_FRAGS + TSO_NUM_DESCRIPTORS + 1; |
| 844 | |
| 845 | if(typhoon_num_free_tx(txRing) < (numDesc + 2)) { |
| 846 | netif_stop_queue(dev); |
| 847 | |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 848 | /* A Tx complete IRQ could have gotten between, making |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 849 | * the ring free again. Only need to recheck here, since |
| 850 | * Tx is serialized. |
| 851 | */ |
| 852 | if(typhoon_num_free_tx(txRing) >= (numDesc + 2)) |
| 853 | netif_wake_queue(dev); |
| 854 | } |
| 855 | |
Patrick McHardy | 6ed1065 | 2009-06-23 06:03:08 +0000 | [diff] [blame] | 856 | return NETDEV_TX_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 857 | } |
| 858 | |
| 859 | static void |
| 860 | typhoon_set_rx_mode(struct net_device *dev) |
| 861 | { |
| 862 | struct typhoon *tp = netdev_priv(dev); |
| 863 | struct cmd_desc xp_cmd; |
| 864 | u32 mc_filter[2]; |
Al Viro | 03a710f | 2007-08-23 00:44:39 -0400 | [diff] [blame] | 865 | __le16 filter; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 866 | |
| 867 | filter = TYPHOON_RX_FILTER_DIRECTED | TYPHOON_RX_FILTER_BROADCAST; |
| 868 | if(dev->flags & IFF_PROMISC) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 869 | filter |= TYPHOON_RX_FILTER_PROMISCOUS; |
Jiri Pirko | 4cd24ea | 2010-02-08 04:30:35 +0000 | [diff] [blame] | 870 | } else if ((netdev_mc_count(dev) > multicast_filter_limit) || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 871 | (dev->flags & IFF_ALLMULTI)) { |
| 872 | /* Too many to match, or accept all multicasts. */ |
| 873 | filter |= TYPHOON_RX_FILTER_ALL_MCAST; |
Jiri Pirko | 4cd24ea | 2010-02-08 04:30:35 +0000 | [diff] [blame] | 874 | } else if (!netdev_mc_empty(dev)) { |
Jiri Pirko | 22bedad3 | 2010-04-01 21:22:57 +0000 | [diff] [blame] | 875 | struct netdev_hw_addr *ha; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 876 | |
| 877 | memset(mc_filter, 0, sizeof(mc_filter)); |
Jiri Pirko | 22bedad3 | 2010-04-01 21:22:57 +0000 | [diff] [blame] | 878 | netdev_for_each_mc_addr(ha, dev) { |
| 879 | int bit = ether_crc(ETH_ALEN, ha->addr) & 0x3f; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 880 | mc_filter[bit >> 5] |= 1 << (bit & 0x1f); |
| 881 | } |
| 882 | |
| 883 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, |
| 884 | TYPHOON_CMD_SET_MULTICAST_HASH); |
| 885 | xp_cmd.parm1 = TYPHOON_MCAST_HASH_SET; |
| 886 | xp_cmd.parm2 = cpu_to_le32(mc_filter[0]); |
| 887 | xp_cmd.parm3 = cpu_to_le32(mc_filter[1]); |
| 888 | typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); |
| 889 | |
| 890 | filter |= TYPHOON_RX_FILTER_MCAST_HASH; |
| 891 | } |
| 892 | |
David Dillow | 154ccd8 | 2010-10-24 10:20:20 +0000 | [diff] [blame] | 893 | INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_SET_RX_FILTER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 894 | xp_cmd.parm1 = filter; |
| 895 | typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); |
| 896 | } |
| 897 | |
| 898 | static int |
| 899 | typhoon_do_get_stats(struct typhoon *tp) |
| 900 | { |
| 901 | struct net_device_stats *stats = &tp->stats; |
| 902 | struct net_device_stats *saved = &tp->stats_saved; |
| 903 | struct cmd_desc xp_cmd; |
| 904 | struct resp_desc xp_resp[7]; |
| 905 | struct stats_resp *s = (struct stats_resp *) xp_resp; |
| 906 | int err; |
| 907 | |
| 908 | INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_READ_STATS); |
| 909 | err = typhoon_issue_command(tp, 1, &xp_cmd, 7, xp_resp); |
| 910 | if(err < 0) |
| 911 | return err; |
| 912 | |
| 913 | /* 3Com's Linux driver uses txMultipleCollisions as it's |
| 914 | * collisions value, but there is some other collision info as well... |
| 915 | * |
| 916 | * The extra status reported would be a good candidate for |
| 917 | * ethtool_ops->get_{strings,stats}() |
| 918 | */ |
Eric Dumazet | 21ff292 | 2010-08-24 04:18:13 +0000 | [diff] [blame] | 919 | stats->tx_packets = le32_to_cpu(s->txPackets) + |
| 920 | saved->tx_packets; |
| 921 | stats->tx_bytes = le64_to_cpu(s->txBytes) + |
| 922 | saved->tx_bytes; |
| 923 | stats->tx_errors = le32_to_cpu(s->txCarrierLost) + |
| 924 | saved->tx_errors; |
| 925 | stats->tx_carrier_errors = le32_to_cpu(s->txCarrierLost) + |
| 926 | saved->tx_carrier_errors; |
| 927 | stats->collisions = le32_to_cpu(s->txMultipleCollisions) + |
| 928 | saved->collisions; |
| 929 | stats->rx_packets = le32_to_cpu(s->rxPacketsGood) + |
| 930 | saved->rx_packets; |
| 931 | stats->rx_bytes = le64_to_cpu(s->rxBytesGood) + |
| 932 | saved->rx_bytes; |
| 933 | stats->rx_fifo_errors = le32_to_cpu(s->rxFifoOverruns) + |
| 934 | saved->rx_fifo_errors; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 935 | stats->rx_errors = le32_to_cpu(s->rxFifoOverruns) + |
Eric Dumazet | 21ff292 | 2010-08-24 04:18:13 +0000 | [diff] [blame] | 936 | le32_to_cpu(s->BadSSD) + le32_to_cpu(s->rxCrcErrors) + |
| 937 | saved->rx_errors; |
| 938 | stats->rx_crc_errors = le32_to_cpu(s->rxCrcErrors) + |
| 939 | saved->rx_crc_errors; |
| 940 | stats->rx_length_errors = le32_to_cpu(s->rxOversized) + |
| 941 | saved->rx_length_errors; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 942 | tp->speed = (s->linkStatus & TYPHOON_LINK_100MBPS) ? |
| 943 | SPEED_100 : SPEED_10; |
| 944 | tp->duplex = (s->linkStatus & TYPHOON_LINK_FULL_DUPLEX) ? |
| 945 | DUPLEX_FULL : DUPLEX_HALF; |
| 946 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 947 | return 0; |
| 948 | } |
| 949 | |
| 950 | static struct net_device_stats * |
| 951 | typhoon_get_stats(struct net_device *dev) |
| 952 | { |
| 953 | struct typhoon *tp = netdev_priv(dev); |
| 954 | struct net_device_stats *stats = &tp->stats; |
| 955 | struct net_device_stats *saved = &tp->stats_saved; |
| 956 | |
| 957 | smp_rmb(); |
| 958 | if(tp->card_state == Sleeping) |
| 959 | return saved; |
| 960 | |
| 961 | if(typhoon_do_get_stats(tp) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 962 | netdev_err(dev, "error getting stats\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 963 | return saved; |
| 964 | } |
| 965 | |
| 966 | return stats; |
| 967 | } |
| 968 | |
| 969 | static int |
| 970 | typhoon_set_mac_address(struct net_device *dev, void *addr) |
| 971 | { |
| 972 | struct sockaddr *saddr = (struct sockaddr *) addr; |
| 973 | |
| 974 | if(netif_running(dev)) |
| 975 | return -EBUSY; |
| 976 | |
| 977 | memcpy(dev->dev_addr, saddr->sa_data, dev->addr_len); |
| 978 | return 0; |
| 979 | } |
| 980 | |
| 981 | static void |
| 982 | typhoon_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
| 983 | { |
| 984 | struct typhoon *tp = netdev_priv(dev); |
| 985 | struct pci_dev *pci_dev = tp->pdev; |
| 986 | struct cmd_desc xp_cmd; |
| 987 | struct resp_desc xp_resp[3]; |
| 988 | |
| 989 | smp_rmb(); |
| 990 | if(tp->card_state == Sleeping) { |
Rick Jones | 68aad78 | 2011-11-07 13:29:27 +0000 | [diff] [blame] | 991 | strlcpy(info->fw_version, "Sleep image", |
| 992 | sizeof(info->fw_version)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 993 | } else { |
| 994 | INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_READ_VERSIONS); |
| 995 | if(typhoon_issue_command(tp, 1, &xp_cmd, 3, xp_resp) < 0) { |
Rick Jones | 68aad78 | 2011-11-07 13:29:27 +0000 | [diff] [blame] | 996 | strlcpy(info->fw_version, "Unknown runtime", |
| 997 | sizeof(info->fw_version)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 998 | } else { |
Al Viro | fdcfd77 | 2007-12-21 06:20:33 +0000 | [diff] [blame] | 999 | u32 sleep_ver = le32_to_cpu(xp_resp[0].parm2); |
Rick Jones | 68aad78 | 2011-11-07 13:29:27 +0000 | [diff] [blame] | 1000 | snprintf(info->fw_version, sizeof(info->fw_version), |
| 1001 | "%02x.%03x.%03x", sleep_ver >> 24, |
| 1002 | (sleep_ver >> 12) & 0xfff, sleep_ver & 0xfff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1003 | } |
| 1004 | } |
| 1005 | |
Rick Jones | 68aad78 | 2011-11-07 13:29:27 +0000 | [diff] [blame] | 1006 | strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver)); |
| 1007 | strlcpy(info->bus_info, pci_name(pci_dev), sizeof(info->bus_info)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1008 | } |
| 1009 | |
| 1010 | static int |
| 1011 | typhoon_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 1012 | { |
| 1013 | struct typhoon *tp = netdev_priv(dev); |
| 1014 | |
| 1015 | cmd->supported = SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | |
| 1016 | SUPPORTED_Autoneg; |
| 1017 | |
| 1018 | switch (tp->xcvr_select) { |
| 1019 | case TYPHOON_XCVR_10HALF: |
| 1020 | cmd->advertising = ADVERTISED_10baseT_Half; |
| 1021 | break; |
| 1022 | case TYPHOON_XCVR_10FULL: |
| 1023 | cmd->advertising = ADVERTISED_10baseT_Full; |
| 1024 | break; |
| 1025 | case TYPHOON_XCVR_100HALF: |
| 1026 | cmd->advertising = ADVERTISED_100baseT_Half; |
| 1027 | break; |
| 1028 | case TYPHOON_XCVR_100FULL: |
| 1029 | cmd->advertising = ADVERTISED_100baseT_Full; |
| 1030 | break; |
| 1031 | case TYPHOON_XCVR_AUTONEG: |
| 1032 | cmd->advertising = ADVERTISED_10baseT_Half | |
| 1033 | ADVERTISED_10baseT_Full | |
| 1034 | ADVERTISED_100baseT_Half | |
| 1035 | ADVERTISED_100baseT_Full | |
| 1036 | ADVERTISED_Autoneg; |
| 1037 | break; |
| 1038 | } |
| 1039 | |
| 1040 | if(tp->capabilities & TYPHOON_FIBER) { |
| 1041 | cmd->supported |= SUPPORTED_FIBRE; |
| 1042 | cmd->advertising |= ADVERTISED_FIBRE; |
| 1043 | cmd->port = PORT_FIBRE; |
| 1044 | } else { |
| 1045 | cmd->supported |= SUPPORTED_10baseT_Half | |
| 1046 | SUPPORTED_10baseT_Full | |
| 1047 | SUPPORTED_TP; |
| 1048 | cmd->advertising |= ADVERTISED_TP; |
| 1049 | cmd->port = PORT_TP; |
| 1050 | } |
| 1051 | |
| 1052 | /* need to get stats to make these link speed/duplex valid */ |
| 1053 | typhoon_do_get_stats(tp); |
David Decotigny | 7073949 | 2011-04-27 18:32:40 +0000 | [diff] [blame] | 1054 | ethtool_cmd_speed_set(cmd, tp->speed); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1055 | cmd->duplex = tp->duplex; |
| 1056 | cmd->phy_address = 0; |
| 1057 | cmd->transceiver = XCVR_INTERNAL; |
| 1058 | if(tp->xcvr_select == TYPHOON_XCVR_AUTONEG) |
| 1059 | cmd->autoneg = AUTONEG_ENABLE; |
| 1060 | else |
| 1061 | cmd->autoneg = AUTONEG_DISABLE; |
| 1062 | cmd->maxtxpkt = 1; |
| 1063 | cmd->maxrxpkt = 1; |
| 1064 | |
| 1065 | return 0; |
| 1066 | } |
| 1067 | |
| 1068 | static int |
| 1069 | typhoon_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 1070 | { |
| 1071 | struct typhoon *tp = netdev_priv(dev); |
David Decotigny | 25db033 | 2011-04-27 18:32:39 +0000 | [diff] [blame] | 1072 | u32 speed = ethtool_cmd_speed(cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1073 | struct cmd_desc xp_cmd; |
Al Viro | 03a710f | 2007-08-23 00:44:39 -0400 | [diff] [blame] | 1074 | __le16 xcvr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1075 | int err; |
| 1076 | |
| 1077 | err = -EINVAL; |
David Decotigny | 25db033 | 2011-04-27 18:32:39 +0000 | [diff] [blame] | 1078 | if (cmd->autoneg == AUTONEG_ENABLE) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1079 | xcvr = TYPHOON_XCVR_AUTONEG; |
| 1080 | } else { |
David Decotigny | 25db033 | 2011-04-27 18:32:39 +0000 | [diff] [blame] | 1081 | if (cmd->duplex == DUPLEX_HALF) { |
| 1082 | if (speed == SPEED_10) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1083 | xcvr = TYPHOON_XCVR_10HALF; |
David Decotigny | 25db033 | 2011-04-27 18:32:39 +0000 | [diff] [blame] | 1084 | else if (speed == SPEED_100) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1085 | xcvr = TYPHOON_XCVR_100HALF; |
| 1086 | else |
| 1087 | goto out; |
David Decotigny | 25db033 | 2011-04-27 18:32:39 +0000 | [diff] [blame] | 1088 | } else if (cmd->duplex == DUPLEX_FULL) { |
| 1089 | if (speed == SPEED_10) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1090 | xcvr = TYPHOON_XCVR_10FULL; |
David Decotigny | 25db033 | 2011-04-27 18:32:39 +0000 | [diff] [blame] | 1091 | else if (speed == SPEED_100) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1092 | xcvr = TYPHOON_XCVR_100FULL; |
| 1093 | else |
| 1094 | goto out; |
| 1095 | } else |
| 1096 | goto out; |
| 1097 | } |
| 1098 | |
| 1099 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_XCVR_SELECT); |
Al Viro | b46281f | 2007-12-21 06:20:43 +0000 | [diff] [blame] | 1100 | xp_cmd.parm1 = xcvr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1101 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); |
| 1102 | if(err < 0) |
| 1103 | goto out; |
| 1104 | |
| 1105 | tp->xcvr_select = xcvr; |
| 1106 | if(cmd->autoneg == AUTONEG_ENABLE) { |
| 1107 | tp->speed = 0xff; /* invalid */ |
| 1108 | tp->duplex = 0xff; /* invalid */ |
| 1109 | } else { |
David Decotigny | 25db033 | 2011-04-27 18:32:39 +0000 | [diff] [blame] | 1110 | tp->speed = speed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1111 | tp->duplex = cmd->duplex; |
| 1112 | } |
| 1113 | |
| 1114 | out: |
| 1115 | return err; |
| 1116 | } |
| 1117 | |
| 1118 | static void |
| 1119 | typhoon_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
| 1120 | { |
| 1121 | struct typhoon *tp = netdev_priv(dev); |
| 1122 | |
| 1123 | wol->supported = WAKE_PHY | WAKE_MAGIC; |
| 1124 | wol->wolopts = 0; |
| 1125 | if(tp->wol_events & TYPHOON_WAKE_LINK_EVENT) |
| 1126 | wol->wolopts |= WAKE_PHY; |
| 1127 | if(tp->wol_events & TYPHOON_WAKE_MAGIC_PKT) |
| 1128 | wol->wolopts |= WAKE_MAGIC; |
| 1129 | memset(&wol->sopass, 0, sizeof(wol->sopass)); |
| 1130 | } |
| 1131 | |
| 1132 | static int |
| 1133 | typhoon_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
| 1134 | { |
| 1135 | struct typhoon *tp = netdev_priv(dev); |
| 1136 | |
| 1137 | if(wol->wolopts & ~(WAKE_PHY | WAKE_MAGIC)) |
| 1138 | return -EINVAL; |
| 1139 | |
| 1140 | tp->wol_events = 0; |
| 1141 | if(wol->wolopts & WAKE_PHY) |
| 1142 | tp->wol_events |= TYPHOON_WAKE_LINK_EVENT; |
| 1143 | if(wol->wolopts & WAKE_MAGIC) |
| 1144 | tp->wol_events |= TYPHOON_WAKE_MAGIC_PKT; |
| 1145 | |
| 1146 | return 0; |
| 1147 | } |
| 1148 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1149 | static void |
| 1150 | typhoon_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ering) |
| 1151 | { |
| 1152 | ering->rx_max_pending = RXENT_ENTRIES; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1153 | ering->tx_max_pending = TXLO_ENTRIES - 1; |
| 1154 | |
| 1155 | ering->rx_pending = RXENT_ENTRIES; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1156 | ering->tx_pending = TXLO_ENTRIES - 1; |
| 1157 | } |
| 1158 | |
Jeff Garzik | 7282d49 | 2006-09-13 14:30:00 -0400 | [diff] [blame] | 1159 | static const struct ethtool_ops typhoon_ethtool_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1160 | .get_settings = typhoon_get_settings, |
| 1161 | .set_settings = typhoon_set_settings, |
| 1162 | .get_drvinfo = typhoon_get_drvinfo, |
| 1163 | .get_wol = typhoon_get_wol, |
| 1164 | .set_wol = typhoon_set_wol, |
| 1165 | .get_link = ethtool_op_get_link, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1166 | .get_ringparam = typhoon_get_ringparam, |
| 1167 | }; |
| 1168 | |
| 1169 | static int |
| 1170 | typhoon_wait_interrupt(void __iomem *ioaddr) |
| 1171 | { |
| 1172 | int i, err = 0; |
| 1173 | |
| 1174 | for(i = 0; i < TYPHOON_WAIT_TIMEOUT; i++) { |
| 1175 | if(ioread32(ioaddr + TYPHOON_REG_INTR_STATUS) & |
| 1176 | TYPHOON_INTR_BOOTCMD) |
| 1177 | goto out; |
| 1178 | udelay(TYPHOON_UDELAY); |
| 1179 | } |
| 1180 | |
| 1181 | err = -ETIMEDOUT; |
| 1182 | |
| 1183 | out: |
| 1184 | iowrite32(TYPHOON_INTR_BOOTCMD, ioaddr + TYPHOON_REG_INTR_STATUS); |
| 1185 | return err; |
| 1186 | } |
| 1187 | |
| 1188 | #define shared_offset(x) offsetof(struct typhoon_shared, x) |
| 1189 | |
| 1190 | static void |
| 1191 | typhoon_init_interface(struct typhoon *tp) |
| 1192 | { |
| 1193 | struct typhoon_interface *iface = &tp->shared->iface; |
| 1194 | dma_addr_t shared_dma; |
| 1195 | |
| 1196 | memset(tp->shared, 0, sizeof(struct typhoon_shared)); |
| 1197 | |
| 1198 | /* The *Hi members of iface are all init'd to zero by the memset(). |
| 1199 | */ |
| 1200 | shared_dma = tp->shared_dma + shared_offset(indexes); |
| 1201 | iface->ringIndex = cpu_to_le32(shared_dma); |
| 1202 | |
| 1203 | shared_dma = tp->shared_dma + shared_offset(txLo); |
| 1204 | iface->txLoAddr = cpu_to_le32(shared_dma); |
| 1205 | iface->txLoSize = cpu_to_le32(TXLO_ENTRIES * sizeof(struct tx_desc)); |
| 1206 | |
| 1207 | shared_dma = tp->shared_dma + shared_offset(txHi); |
| 1208 | iface->txHiAddr = cpu_to_le32(shared_dma); |
| 1209 | iface->txHiSize = cpu_to_le32(TXHI_ENTRIES * sizeof(struct tx_desc)); |
| 1210 | |
| 1211 | shared_dma = tp->shared_dma + shared_offset(rxBuff); |
| 1212 | iface->rxBuffAddr = cpu_to_le32(shared_dma); |
| 1213 | iface->rxBuffSize = cpu_to_le32(RXFREE_ENTRIES * |
| 1214 | sizeof(struct rx_free)); |
| 1215 | |
| 1216 | shared_dma = tp->shared_dma + shared_offset(rxLo); |
| 1217 | iface->rxLoAddr = cpu_to_le32(shared_dma); |
| 1218 | iface->rxLoSize = cpu_to_le32(RX_ENTRIES * sizeof(struct rx_desc)); |
| 1219 | |
| 1220 | shared_dma = tp->shared_dma + shared_offset(rxHi); |
| 1221 | iface->rxHiAddr = cpu_to_le32(shared_dma); |
| 1222 | iface->rxHiSize = cpu_to_le32(RX_ENTRIES * sizeof(struct rx_desc)); |
| 1223 | |
| 1224 | shared_dma = tp->shared_dma + shared_offset(cmd); |
| 1225 | iface->cmdAddr = cpu_to_le32(shared_dma); |
| 1226 | iface->cmdSize = cpu_to_le32(COMMAND_RING_SIZE); |
| 1227 | |
| 1228 | shared_dma = tp->shared_dma + shared_offset(resp); |
| 1229 | iface->respAddr = cpu_to_le32(shared_dma); |
| 1230 | iface->respSize = cpu_to_le32(RESPONSE_RING_SIZE); |
| 1231 | |
| 1232 | shared_dma = tp->shared_dma + shared_offset(zeroWord); |
| 1233 | iface->zeroAddr = cpu_to_le32(shared_dma); |
| 1234 | |
| 1235 | tp->indexes = &tp->shared->indexes; |
| 1236 | tp->txLoRing.ringBase = (u8 *) tp->shared->txLo; |
| 1237 | tp->txHiRing.ringBase = (u8 *) tp->shared->txHi; |
| 1238 | tp->rxLoRing.ringBase = (u8 *) tp->shared->rxLo; |
| 1239 | tp->rxHiRing.ringBase = (u8 *) tp->shared->rxHi; |
| 1240 | tp->rxBuffRing.ringBase = (u8 *) tp->shared->rxBuff; |
| 1241 | tp->cmdRing.ringBase = (u8 *) tp->shared->cmd; |
| 1242 | tp->respRing.ringBase = (u8 *) tp->shared->resp; |
| 1243 | |
| 1244 | tp->txLoRing.writeRegister = TYPHOON_REG_TX_LO_READY; |
| 1245 | tp->txHiRing.writeRegister = TYPHOON_REG_TX_HI_READY; |
| 1246 | |
Al Viro | 8cc085c | 2007-12-21 06:21:03 +0000 | [diff] [blame] | 1247 | tp->txlo_dma_addr = le32_to_cpu(iface->txLoAddr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1248 | tp->card_state = Sleeping; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1249 | |
| 1250 | tp->offload = TYPHOON_OFFLOAD_IP_CHKSUM | TYPHOON_OFFLOAD_TCP_CHKSUM; |
| 1251 | tp->offload |= TYPHOON_OFFLOAD_UDP_CHKSUM | TSO_OFFLOAD_ON; |
David Dillow | fd59cba | 2010-10-24 10:20:21 +0000 | [diff] [blame] | 1252 | tp->offload |= TYPHOON_OFFLOAD_VLAN; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1253 | |
| 1254 | spin_lock_init(&tp->command_lock); |
David Dillow | 5fe88ea | 2010-03-04 04:37:16 +0000 | [diff] [blame] | 1255 | |
| 1256 | /* Force the writes to the shared memory area out before continuing. */ |
| 1257 | wmb(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1258 | } |
| 1259 | |
| 1260 | static void |
| 1261 | typhoon_init_rings(struct typhoon *tp) |
| 1262 | { |
| 1263 | memset(tp->indexes, 0, sizeof(struct typhoon_indexes)); |
| 1264 | |
| 1265 | tp->txLoRing.lastWrite = 0; |
| 1266 | tp->txHiRing.lastWrite = 0; |
| 1267 | tp->rxLoRing.lastWrite = 0; |
| 1268 | tp->rxHiRing.lastWrite = 0; |
| 1269 | tp->rxBuffRing.lastWrite = 0; |
| 1270 | tp->cmdRing.lastWrite = 0; |
Julia Lawall | 13c3ab8 | 2010-10-26 00:25:36 +0000 | [diff] [blame] | 1271 | tp->respRing.lastWrite = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1272 | |
| 1273 | tp->txLoRing.lastRead = 0; |
| 1274 | tp->txHiRing.lastRead = 0; |
| 1275 | } |
| 1276 | |
Ben Hutchings | b775a75 | 2009-02-26 23:21:23 -0800 | [diff] [blame] | 1277 | static const struct firmware *typhoon_fw; |
| 1278 | |
| 1279 | static int |
| 1280 | typhoon_request_firmware(struct typhoon *tp) |
| 1281 | { |
David Dillow | a8c9a53 | 2009-03-02 22:15:09 -0800 | [diff] [blame] | 1282 | const struct typhoon_file_header *fHdr; |
| 1283 | const struct typhoon_section_header *sHdr; |
| 1284 | const u8 *image_data; |
| 1285 | u32 numSections; |
| 1286 | u32 section_len; |
| 1287 | u32 remaining; |
Ben Hutchings | b775a75 | 2009-02-26 23:21:23 -0800 | [diff] [blame] | 1288 | int err; |
| 1289 | |
| 1290 | if (typhoon_fw) |
| 1291 | return 0; |
| 1292 | |
| 1293 | err = request_firmware(&typhoon_fw, FIRMWARE_NAME, &tp->pdev->dev); |
| 1294 | if (err) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 1295 | netdev_err(tp->dev, "Failed to load firmware \"%s\"\n", |
| 1296 | FIRMWARE_NAME); |
Ben Hutchings | b775a75 | 2009-02-26 23:21:23 -0800 | [diff] [blame] | 1297 | return err; |
| 1298 | } |
| 1299 | |
David Dillow | a8c9a53 | 2009-03-02 22:15:09 -0800 | [diff] [blame] | 1300 | image_data = (u8 *) typhoon_fw->data; |
| 1301 | remaining = typhoon_fw->size; |
| 1302 | if (remaining < sizeof(struct typhoon_file_header)) |
| 1303 | goto invalid_fw; |
David S. Miller | d517c4a | 2009-03-01 20:24:32 -0800 | [diff] [blame] | 1304 | |
David Dillow | a8c9a53 | 2009-03-02 22:15:09 -0800 | [diff] [blame] | 1305 | fHdr = (struct typhoon_file_header *) image_data; |
| 1306 | if (memcmp(fHdr->tag, "TYPHOON", 8)) |
| 1307 | goto invalid_fw; |
| 1308 | |
| 1309 | numSections = le32_to_cpu(fHdr->numSections); |
| 1310 | image_data += sizeof(struct typhoon_file_header); |
| 1311 | remaining -= sizeof(struct typhoon_file_header); |
| 1312 | |
| 1313 | while (numSections--) { |
| 1314 | if (remaining < sizeof(struct typhoon_section_header)) |
| 1315 | goto invalid_fw; |
| 1316 | |
| 1317 | sHdr = (struct typhoon_section_header *) image_data; |
| 1318 | image_data += sizeof(struct typhoon_section_header); |
| 1319 | section_len = le32_to_cpu(sHdr->len); |
| 1320 | |
| 1321 | if (remaining < section_len) |
| 1322 | goto invalid_fw; |
| 1323 | |
| 1324 | image_data += section_len; |
| 1325 | remaining -= section_len; |
Ben Hutchings | b775a75 | 2009-02-26 23:21:23 -0800 | [diff] [blame] | 1326 | } |
| 1327 | |
| 1328 | return 0; |
David S. Miller | d517c4a | 2009-03-01 20:24:32 -0800 | [diff] [blame] | 1329 | |
David Dillow | a8c9a53 | 2009-03-02 22:15:09 -0800 | [diff] [blame] | 1330 | invalid_fw: |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 1331 | netdev_err(tp->dev, "Invalid firmware image\n"); |
David S. Miller | d517c4a | 2009-03-01 20:24:32 -0800 | [diff] [blame] | 1332 | release_firmware(typhoon_fw); |
| 1333 | typhoon_fw = NULL; |
David Dillow | a8c9a53 | 2009-03-02 22:15:09 -0800 | [diff] [blame] | 1334 | return -EINVAL; |
Ben Hutchings | b775a75 | 2009-02-26 23:21:23 -0800 | [diff] [blame] | 1335 | } |
| 1336 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1337 | static int |
| 1338 | typhoon_download_firmware(struct typhoon *tp) |
| 1339 | { |
| 1340 | void __iomem *ioaddr = tp->ioaddr; |
| 1341 | struct pci_dev *pdev = tp->pdev; |
Ben Hutchings | b775a75 | 2009-02-26 23:21:23 -0800 | [diff] [blame] | 1342 | const struct typhoon_file_header *fHdr; |
| 1343 | const struct typhoon_section_header *sHdr; |
| 1344 | const u8 *image_data; |
David Dillow | a8c9a53 | 2009-03-02 22:15:09 -0800 | [diff] [blame] | 1345 | void *dpage; |
| 1346 | dma_addr_t dpage_dma; |
Al Viro | 71f1bb1 | 2007-12-21 06:21:14 +0000 | [diff] [blame] | 1347 | __sum16 csum; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1348 | u32 irqEnabled; |
| 1349 | u32 irqMasked; |
| 1350 | u32 numSections; |
| 1351 | u32 section_len; |
David Dillow | a8c9a53 | 2009-03-02 22:15:09 -0800 | [diff] [blame] | 1352 | u32 len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1353 | u32 load_addr; |
| 1354 | u32 hmac; |
| 1355 | int i; |
| 1356 | int err; |
| 1357 | |
David Dillow | a8c9a53 | 2009-03-02 22:15:09 -0800 | [diff] [blame] | 1358 | image_data = (u8 *) typhoon_fw->data; |
Ben Hutchings | b775a75 | 2009-02-26 23:21:23 -0800 | [diff] [blame] | 1359 | fHdr = (struct typhoon_file_header *) image_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1360 | |
David Dillow | a8c9a53 | 2009-03-02 22:15:09 -0800 | [diff] [blame] | 1361 | /* Cannot just map the firmware image using pci_map_single() as |
| 1362 | * the firmware is vmalloc()'d and may not be physically contiguous, |
| 1363 | * so we allocate some consistent memory to copy the sections into. |
| 1364 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1365 | err = -ENOMEM; |
David Dillow | a8c9a53 | 2009-03-02 22:15:09 -0800 | [diff] [blame] | 1366 | dpage = pci_alloc_consistent(pdev, PAGE_SIZE, &dpage_dma); |
| 1367 | if(!dpage) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 1368 | netdev_err(tp->dev, "no DMA mem for firmware\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1369 | goto err_out; |
| 1370 | } |
| 1371 | |
| 1372 | irqEnabled = ioread32(ioaddr + TYPHOON_REG_INTR_ENABLE); |
| 1373 | iowrite32(irqEnabled | TYPHOON_INTR_BOOTCMD, |
| 1374 | ioaddr + TYPHOON_REG_INTR_ENABLE); |
| 1375 | irqMasked = ioread32(ioaddr + TYPHOON_REG_INTR_MASK); |
| 1376 | iowrite32(irqMasked | TYPHOON_INTR_BOOTCMD, |
| 1377 | ioaddr + TYPHOON_REG_INTR_MASK); |
| 1378 | |
| 1379 | err = -ETIMEDOUT; |
| 1380 | if(typhoon_wait_status(ioaddr, TYPHOON_STATUS_WAITING_FOR_HOST) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 1381 | netdev_err(tp->dev, "card ready timeout\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1382 | goto err_out_irq; |
| 1383 | } |
| 1384 | |
| 1385 | numSections = le32_to_cpu(fHdr->numSections); |
| 1386 | load_addr = le32_to_cpu(fHdr->startAddr); |
| 1387 | |
| 1388 | iowrite32(TYPHOON_INTR_BOOTCMD, ioaddr + TYPHOON_REG_INTR_STATUS); |
| 1389 | iowrite32(load_addr, ioaddr + TYPHOON_REG_DOWNLOAD_BOOT_ADDR); |
| 1390 | hmac = le32_to_cpu(fHdr->hmacDigest[0]); |
| 1391 | iowrite32(hmac, ioaddr + TYPHOON_REG_DOWNLOAD_HMAC_0); |
| 1392 | hmac = le32_to_cpu(fHdr->hmacDigest[1]); |
| 1393 | iowrite32(hmac, ioaddr + TYPHOON_REG_DOWNLOAD_HMAC_1); |
| 1394 | hmac = le32_to_cpu(fHdr->hmacDigest[2]); |
| 1395 | iowrite32(hmac, ioaddr + TYPHOON_REG_DOWNLOAD_HMAC_2); |
| 1396 | hmac = le32_to_cpu(fHdr->hmacDigest[3]); |
| 1397 | iowrite32(hmac, ioaddr + TYPHOON_REG_DOWNLOAD_HMAC_3); |
| 1398 | hmac = le32_to_cpu(fHdr->hmacDigest[4]); |
| 1399 | iowrite32(hmac, ioaddr + TYPHOON_REG_DOWNLOAD_HMAC_4); |
| 1400 | typhoon_post_pci_writes(ioaddr); |
| 1401 | iowrite32(TYPHOON_BOOTCMD_RUNTIME_IMAGE, ioaddr + TYPHOON_REG_COMMAND); |
| 1402 | |
| 1403 | image_data += sizeof(struct typhoon_file_header); |
| 1404 | |
| 1405 | /* The ioread32() in typhoon_wait_interrupt() will force the |
| 1406 | * last write to the command register to post, so |
| 1407 | * we don't need a typhoon_post_pci_writes() after it. |
| 1408 | */ |
| 1409 | for(i = 0; i < numSections; i++) { |
| 1410 | sHdr = (struct typhoon_section_header *) image_data; |
| 1411 | image_data += sizeof(struct typhoon_section_header); |
| 1412 | load_addr = le32_to_cpu(sHdr->startAddr); |
| 1413 | section_len = le32_to_cpu(sHdr->len); |
| 1414 | |
David Dillow | a8c9a53 | 2009-03-02 22:15:09 -0800 | [diff] [blame] | 1415 | while(section_len) { |
| 1416 | len = min_t(u32, section_len, PAGE_SIZE); |
| 1417 | |
| 1418 | if(typhoon_wait_interrupt(ioaddr) < 0 || |
| 1419 | ioread32(ioaddr + TYPHOON_REG_STATUS) != |
| 1420 | TYPHOON_STATUS_WAITING_FOR_SEGMENT) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 1421 | netdev_err(tp->dev, "segment ready timeout\n"); |
David Dillow | a8c9a53 | 2009-03-02 22:15:09 -0800 | [diff] [blame] | 1422 | goto err_out_irq; |
| 1423 | } |
| 1424 | |
| 1425 | /* Do an pseudo IPv4 checksum on the data -- first |
| 1426 | * need to convert each u16 to cpu order before |
| 1427 | * summing. Fortunately, due to the properties of |
| 1428 | * the checksum, we can do this once, at the end. |
| 1429 | */ |
| 1430 | csum = csum_fold(csum_partial_copy_nocheck(image_data, |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 1431 | dpage, len, |
| 1432 | 0)); |
David Dillow | a8c9a53 | 2009-03-02 22:15:09 -0800 | [diff] [blame] | 1433 | |
| 1434 | iowrite32(len, ioaddr + TYPHOON_REG_BOOT_LENGTH); |
| 1435 | iowrite32(le16_to_cpu((__force __le16)csum), |
| 1436 | ioaddr + TYPHOON_REG_BOOT_CHECKSUM); |
| 1437 | iowrite32(load_addr, |
| 1438 | ioaddr + TYPHOON_REG_BOOT_DEST_ADDR); |
| 1439 | iowrite32(0, ioaddr + TYPHOON_REG_BOOT_DATA_HI); |
| 1440 | iowrite32(dpage_dma, ioaddr + TYPHOON_REG_BOOT_DATA_LO); |
| 1441 | typhoon_post_pci_writes(ioaddr); |
| 1442 | iowrite32(TYPHOON_BOOTCMD_SEG_AVAILABLE, |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 1443 | ioaddr + TYPHOON_REG_COMMAND); |
David Dillow | a8c9a53 | 2009-03-02 22:15:09 -0800 | [diff] [blame] | 1444 | |
| 1445 | image_data += len; |
| 1446 | load_addr += len; |
| 1447 | section_len -= len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1448 | } |
| 1449 | } |
| 1450 | |
| 1451 | if(typhoon_wait_interrupt(ioaddr) < 0 || |
| 1452 | ioread32(ioaddr + TYPHOON_REG_STATUS) != |
| 1453 | TYPHOON_STATUS_WAITING_FOR_SEGMENT) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 1454 | netdev_err(tp->dev, "final segment ready timeout\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1455 | goto err_out_irq; |
| 1456 | } |
| 1457 | |
| 1458 | iowrite32(TYPHOON_BOOTCMD_DNLD_COMPLETE, ioaddr + TYPHOON_REG_COMMAND); |
| 1459 | |
| 1460 | if(typhoon_wait_status(ioaddr, TYPHOON_STATUS_WAITING_FOR_BOOT) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 1461 | netdev_err(tp->dev, "boot ready timeout, status 0x%0x\n", |
| 1462 | ioread32(ioaddr + TYPHOON_REG_STATUS)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1463 | goto err_out_irq; |
| 1464 | } |
| 1465 | |
| 1466 | err = 0; |
| 1467 | |
| 1468 | err_out_irq: |
| 1469 | iowrite32(irqMasked, ioaddr + TYPHOON_REG_INTR_MASK); |
| 1470 | iowrite32(irqEnabled, ioaddr + TYPHOON_REG_INTR_ENABLE); |
| 1471 | |
David Dillow | a8c9a53 | 2009-03-02 22:15:09 -0800 | [diff] [blame] | 1472 | pci_free_consistent(pdev, PAGE_SIZE, dpage, dpage_dma); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1473 | |
| 1474 | err_out: |
| 1475 | return err; |
| 1476 | } |
| 1477 | |
| 1478 | static int |
| 1479 | typhoon_boot_3XP(struct typhoon *tp, u32 initial_status) |
| 1480 | { |
| 1481 | void __iomem *ioaddr = tp->ioaddr; |
| 1482 | |
| 1483 | if(typhoon_wait_status(ioaddr, initial_status) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 1484 | netdev_err(tp->dev, "boot ready timeout\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1485 | goto out_timeout; |
| 1486 | } |
| 1487 | |
| 1488 | iowrite32(0, ioaddr + TYPHOON_REG_BOOT_RECORD_ADDR_HI); |
| 1489 | iowrite32(tp->shared_dma, ioaddr + TYPHOON_REG_BOOT_RECORD_ADDR_LO); |
| 1490 | typhoon_post_pci_writes(ioaddr); |
| 1491 | iowrite32(TYPHOON_BOOTCMD_REG_BOOT_RECORD, |
| 1492 | ioaddr + TYPHOON_REG_COMMAND); |
| 1493 | |
| 1494 | if(typhoon_wait_status(ioaddr, TYPHOON_STATUS_RUNNING) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 1495 | netdev_err(tp->dev, "boot finish timeout (status 0x%x)\n", |
| 1496 | ioread32(ioaddr + TYPHOON_REG_STATUS)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1497 | goto out_timeout; |
| 1498 | } |
| 1499 | |
| 1500 | /* Clear the Transmit and Command ready registers |
| 1501 | */ |
| 1502 | iowrite32(0, ioaddr + TYPHOON_REG_TX_HI_READY); |
| 1503 | iowrite32(0, ioaddr + TYPHOON_REG_CMD_READY); |
| 1504 | iowrite32(0, ioaddr + TYPHOON_REG_TX_LO_READY); |
| 1505 | typhoon_post_pci_writes(ioaddr); |
| 1506 | iowrite32(TYPHOON_BOOTCMD_BOOT, ioaddr + TYPHOON_REG_COMMAND); |
| 1507 | |
| 1508 | return 0; |
| 1509 | |
| 1510 | out_timeout: |
| 1511 | return -ETIMEDOUT; |
| 1512 | } |
| 1513 | |
| 1514 | static u32 |
| 1515 | typhoon_clean_tx(struct typhoon *tp, struct transmit_ring *txRing, |
Al Viro | 03a710f | 2007-08-23 00:44:39 -0400 | [diff] [blame] | 1516 | volatile __le32 * index) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1517 | { |
| 1518 | u32 lastRead = txRing->lastRead; |
| 1519 | struct tx_desc *tx; |
| 1520 | dma_addr_t skb_dma; |
| 1521 | int dma_len; |
| 1522 | int type; |
| 1523 | |
| 1524 | while(lastRead != le32_to_cpu(*index)) { |
| 1525 | tx = (struct tx_desc *) (txRing->ringBase + lastRead); |
| 1526 | type = tx->flags & TYPHOON_TYPE_MASK; |
| 1527 | |
| 1528 | if(type == TYPHOON_TX_DESC) { |
| 1529 | /* This tx_desc describes a packet. |
| 1530 | */ |
Al Viro | 71f1bb1 | 2007-12-21 06:21:14 +0000 | [diff] [blame] | 1531 | unsigned long ptr = tx->tx_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1532 | struct sk_buff *skb = (struct sk_buff *) ptr; |
| 1533 | dev_kfree_skb_irq(skb); |
| 1534 | } else if(type == TYPHOON_FRAG_DESC) { |
| 1535 | /* This tx_desc describes a memory mapping. Free it. |
| 1536 | */ |
Al Viro | 71f1bb1 | 2007-12-21 06:21:14 +0000 | [diff] [blame] | 1537 | skb_dma = (dma_addr_t) le32_to_cpu(tx->frag.addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1538 | dma_len = le16_to_cpu(tx->len); |
| 1539 | pci_unmap_single(tp->pdev, skb_dma, dma_len, |
| 1540 | PCI_DMA_TODEVICE); |
| 1541 | } |
| 1542 | |
| 1543 | tx->flags = 0; |
| 1544 | typhoon_inc_tx_index(&lastRead, 1); |
| 1545 | } |
| 1546 | |
| 1547 | return lastRead; |
| 1548 | } |
| 1549 | |
| 1550 | static void |
| 1551 | typhoon_tx_complete(struct typhoon *tp, struct transmit_ring *txRing, |
Al Viro | 03a710f | 2007-08-23 00:44:39 -0400 | [diff] [blame] | 1552 | volatile __le32 * index) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1553 | { |
| 1554 | u32 lastRead; |
| 1555 | int numDesc = MAX_SKB_FRAGS + 1; |
| 1556 | |
| 1557 | /* This will need changing if we start to use the Hi Tx ring. */ |
| 1558 | lastRead = typhoon_clean_tx(tp, txRing, index); |
| 1559 | if(netif_queue_stopped(tp->dev) && typhoon_num_free(txRing->lastWrite, |
| 1560 | lastRead, TXLO_ENTRIES) > (numDesc + 2)) |
| 1561 | netif_wake_queue(tp->dev); |
| 1562 | |
| 1563 | txRing->lastRead = lastRead; |
| 1564 | smp_wmb(); |
| 1565 | } |
| 1566 | |
| 1567 | static void |
| 1568 | typhoon_recycle_rx_skb(struct typhoon *tp, u32 idx) |
| 1569 | { |
| 1570 | struct typhoon_indexes *indexes = tp->indexes; |
| 1571 | struct rxbuff_ent *rxb = &tp->rxbuffers[idx]; |
| 1572 | struct basic_ring *ring = &tp->rxBuffRing; |
| 1573 | struct rx_free *r; |
| 1574 | |
| 1575 | if((ring->lastWrite + sizeof(*r)) % (RXFREE_ENTRIES * sizeof(*r)) == |
Al Viro | 8a5ed9e | 2007-12-21 06:20:53 +0000 | [diff] [blame] | 1576 | le32_to_cpu(indexes->rxBuffCleared)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1577 | /* no room in ring, just drop the skb |
| 1578 | */ |
| 1579 | dev_kfree_skb_any(rxb->skb); |
| 1580 | rxb->skb = NULL; |
| 1581 | return; |
| 1582 | } |
| 1583 | |
| 1584 | r = (struct rx_free *) (ring->ringBase + ring->lastWrite); |
| 1585 | typhoon_inc_rxfree_index(&ring->lastWrite, 1); |
| 1586 | r->virtAddr = idx; |
| 1587 | r->physAddr = cpu_to_le32(rxb->dma_addr); |
| 1588 | |
| 1589 | /* Tell the card about it */ |
| 1590 | wmb(); |
| 1591 | indexes->rxBuffReady = cpu_to_le32(ring->lastWrite); |
| 1592 | } |
| 1593 | |
| 1594 | static int |
| 1595 | typhoon_alloc_rx_skb(struct typhoon *tp, u32 idx) |
| 1596 | { |
| 1597 | struct typhoon_indexes *indexes = tp->indexes; |
| 1598 | struct rxbuff_ent *rxb = &tp->rxbuffers[idx]; |
| 1599 | struct basic_ring *ring = &tp->rxBuffRing; |
| 1600 | struct rx_free *r; |
| 1601 | struct sk_buff *skb; |
| 1602 | dma_addr_t dma_addr; |
| 1603 | |
| 1604 | rxb->skb = NULL; |
| 1605 | |
| 1606 | if((ring->lastWrite + sizeof(*r)) % (RXFREE_ENTRIES * sizeof(*r)) == |
Al Viro | 8a5ed9e | 2007-12-21 06:20:53 +0000 | [diff] [blame] | 1607 | le32_to_cpu(indexes->rxBuffCleared)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1608 | return -ENOMEM; |
| 1609 | |
| 1610 | skb = dev_alloc_skb(PKT_BUF_SZ); |
| 1611 | if(!skb) |
| 1612 | return -ENOMEM; |
| 1613 | |
| 1614 | #if 0 |
| 1615 | /* Please, 3com, fix the firmware to allow DMA to a unaligned |
| 1616 | * address! Pretty please? |
| 1617 | */ |
| 1618 | skb_reserve(skb, 2); |
| 1619 | #endif |
| 1620 | |
| 1621 | skb->dev = tp->dev; |
David S. Miller | 689be43 | 2005-06-28 15:25:31 -0700 | [diff] [blame] | 1622 | dma_addr = pci_map_single(tp->pdev, skb->data, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1623 | PKT_BUF_SZ, PCI_DMA_FROMDEVICE); |
| 1624 | |
| 1625 | /* Since no card does 64 bit DAC, the high bits will never |
| 1626 | * change from zero. |
| 1627 | */ |
| 1628 | r = (struct rx_free *) (ring->ringBase + ring->lastWrite); |
| 1629 | typhoon_inc_rxfree_index(&ring->lastWrite, 1); |
| 1630 | r->virtAddr = idx; |
| 1631 | r->physAddr = cpu_to_le32(dma_addr); |
| 1632 | rxb->skb = skb; |
| 1633 | rxb->dma_addr = dma_addr; |
| 1634 | |
| 1635 | /* Tell the card about it */ |
| 1636 | wmb(); |
| 1637 | indexes->rxBuffReady = cpu_to_le32(ring->lastWrite); |
| 1638 | return 0; |
| 1639 | } |
| 1640 | |
| 1641 | static int |
Al Viro | 03a710f | 2007-08-23 00:44:39 -0400 | [diff] [blame] | 1642 | typhoon_rx(struct typhoon *tp, struct basic_ring *rxRing, volatile __le32 * ready, |
| 1643 | volatile __le32 * cleared, int budget) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1644 | { |
| 1645 | struct rx_desc *rx; |
| 1646 | struct sk_buff *skb, *new_skb; |
| 1647 | struct rxbuff_ent *rxb; |
| 1648 | dma_addr_t dma_addr; |
| 1649 | u32 local_ready; |
| 1650 | u32 rxaddr; |
| 1651 | int pkt_len; |
| 1652 | u32 idx; |
Al Viro | 03a710f | 2007-08-23 00:44:39 -0400 | [diff] [blame] | 1653 | __le32 csum_bits; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1654 | int received; |
| 1655 | |
| 1656 | received = 0; |
| 1657 | local_ready = le32_to_cpu(*ready); |
| 1658 | rxaddr = le32_to_cpu(*cleared); |
| 1659 | while(rxaddr != local_ready && budget > 0) { |
| 1660 | rx = (struct rx_desc *) (rxRing->ringBase + rxaddr); |
| 1661 | idx = rx->addr; |
| 1662 | rxb = &tp->rxbuffers[idx]; |
| 1663 | skb = rxb->skb; |
| 1664 | dma_addr = rxb->dma_addr; |
| 1665 | |
| 1666 | typhoon_inc_rx_index(&rxaddr, 1); |
| 1667 | |
| 1668 | if(rx->flags & TYPHOON_RX_ERROR) { |
| 1669 | typhoon_recycle_rx_skb(tp, idx); |
| 1670 | continue; |
| 1671 | } |
| 1672 | |
| 1673 | pkt_len = le16_to_cpu(rx->frameLen); |
| 1674 | |
| 1675 | if(pkt_len < rx_copybreak && |
| 1676 | (new_skb = dev_alloc_skb(pkt_len + 2)) != NULL) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1677 | skb_reserve(new_skb, 2); |
| 1678 | pci_dma_sync_single_for_cpu(tp->pdev, dma_addr, |
| 1679 | PKT_BUF_SZ, |
| 1680 | PCI_DMA_FROMDEVICE); |
David S. Miller | 8c7b7fa | 2007-07-10 22:08:12 -0700 | [diff] [blame] | 1681 | skb_copy_to_linear_data(new_skb, skb->data, pkt_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1682 | pci_dma_sync_single_for_device(tp->pdev, dma_addr, |
| 1683 | PKT_BUF_SZ, |
| 1684 | PCI_DMA_FROMDEVICE); |
| 1685 | skb_put(new_skb, pkt_len); |
| 1686 | typhoon_recycle_rx_skb(tp, idx); |
| 1687 | } else { |
| 1688 | new_skb = skb; |
| 1689 | skb_put(new_skb, pkt_len); |
| 1690 | pci_unmap_single(tp->pdev, dma_addr, PKT_BUF_SZ, |
| 1691 | PCI_DMA_FROMDEVICE); |
| 1692 | typhoon_alloc_rx_skb(tp, idx); |
| 1693 | } |
| 1694 | new_skb->protocol = eth_type_trans(new_skb, tp->dev); |
| 1695 | csum_bits = rx->rxStatus & (TYPHOON_RX_IP_CHK_GOOD | |
| 1696 | TYPHOON_RX_UDP_CHK_GOOD | TYPHOON_RX_TCP_CHK_GOOD); |
| 1697 | if(csum_bits == |
Joe Perches | 8e95a20 | 2009-12-03 07:58:21 +0000 | [diff] [blame] | 1698 | (TYPHOON_RX_IP_CHK_GOOD | TYPHOON_RX_TCP_CHK_GOOD) || |
| 1699 | csum_bits == |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1700 | (TYPHOON_RX_IP_CHK_GOOD | TYPHOON_RX_UDP_CHK_GOOD)) { |
| 1701 | new_skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 1702 | } else |
Eric Dumazet | bc8acf2 | 2010-09-02 13:07:41 -0700 | [diff] [blame] | 1703 | skb_checksum_none_assert(new_skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1704 | |
David Dillow | fd59cba | 2010-10-24 10:20:21 +0000 | [diff] [blame] | 1705 | if (rx->rxStatus & TYPHOON_RX_VLAN) |
| 1706 | __vlan_hwaccel_put_tag(new_skb, |
| 1707 | ntohl(rx->vlanTag) & 0xffff); |
| 1708 | netif_receive_skb(new_skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1709 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1710 | received++; |
| 1711 | budget--; |
| 1712 | } |
| 1713 | *cleared = cpu_to_le32(rxaddr); |
| 1714 | |
| 1715 | return received; |
| 1716 | } |
| 1717 | |
| 1718 | static void |
| 1719 | typhoon_fill_free_ring(struct typhoon *tp) |
| 1720 | { |
| 1721 | u32 i; |
| 1722 | |
| 1723 | for(i = 0; i < RXENT_ENTRIES; i++) { |
| 1724 | struct rxbuff_ent *rxb = &tp->rxbuffers[i]; |
| 1725 | if(rxb->skb) |
| 1726 | continue; |
| 1727 | if(typhoon_alloc_rx_skb(tp, i) < 0) |
| 1728 | break; |
| 1729 | } |
| 1730 | } |
| 1731 | |
| 1732 | static int |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1733 | typhoon_poll(struct napi_struct *napi, int budget) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1734 | { |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1735 | struct typhoon *tp = container_of(napi, struct typhoon, napi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1736 | struct typhoon_indexes *indexes = tp->indexes; |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1737 | int work_done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1738 | |
| 1739 | rmb(); |
| 1740 | if(!tp->awaiting_resp && indexes->respReady != indexes->respCleared) |
| 1741 | typhoon_process_response(tp, 0, NULL); |
| 1742 | |
| 1743 | if(le32_to_cpu(indexes->txLoCleared) != tp->txLoRing.lastRead) |
| 1744 | typhoon_tx_complete(tp, &tp->txLoRing, &indexes->txLoCleared); |
| 1745 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1746 | work_done = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1747 | |
| 1748 | if(indexes->rxHiCleared != indexes->rxHiReady) { |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1749 | work_done += typhoon_rx(tp, &tp->rxHiRing, &indexes->rxHiReady, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1750 | &indexes->rxHiCleared, budget); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1751 | } |
| 1752 | |
| 1753 | if(indexes->rxLoCleared != indexes->rxLoReady) { |
| 1754 | work_done += typhoon_rx(tp, &tp->rxLoRing, &indexes->rxLoReady, |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1755 | &indexes->rxLoCleared, budget - work_done); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1756 | } |
| 1757 | |
| 1758 | if(le32_to_cpu(indexes->rxBuffCleared) == tp->rxBuffRing.lastWrite) { |
| 1759 | /* rxBuff ring is empty, try to fill it. */ |
| 1760 | typhoon_fill_free_ring(tp); |
| 1761 | } |
| 1762 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1763 | if (work_done < budget) { |
Ben Hutchings | 288379f | 2009-01-19 16:43:59 -0800 | [diff] [blame] | 1764 | napi_complete(napi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1765 | iowrite32(TYPHOON_INTR_NONE, |
| 1766 | tp->ioaddr + TYPHOON_REG_INTR_MASK); |
| 1767 | typhoon_post_pci_writes(tp->ioaddr); |
| 1768 | } |
| 1769 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1770 | return work_done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1771 | } |
| 1772 | |
| 1773 | static irqreturn_t |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1774 | typhoon_interrupt(int irq, void *dev_instance) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1775 | { |
Jeff Garzik | 06efcad | 2007-10-19 03:10:11 -0400 | [diff] [blame] | 1776 | struct net_device *dev = dev_instance; |
Wang Chen | 8f15ea4 | 2008-11-12 23:38:36 -0800 | [diff] [blame] | 1777 | struct typhoon *tp = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1778 | void __iomem *ioaddr = tp->ioaddr; |
| 1779 | u32 intr_status; |
| 1780 | |
| 1781 | intr_status = ioread32(ioaddr + TYPHOON_REG_INTR_STATUS); |
| 1782 | if(!(intr_status & TYPHOON_INTR_HOST_INT)) |
| 1783 | return IRQ_NONE; |
| 1784 | |
| 1785 | iowrite32(intr_status, ioaddr + TYPHOON_REG_INTR_STATUS); |
| 1786 | |
Ben Hutchings | 288379f | 2009-01-19 16:43:59 -0800 | [diff] [blame] | 1787 | if (napi_schedule_prep(&tp->napi)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1788 | iowrite32(TYPHOON_INTR_ALL, ioaddr + TYPHOON_REG_INTR_MASK); |
| 1789 | typhoon_post_pci_writes(ioaddr); |
Ben Hutchings | 288379f | 2009-01-19 16:43:59 -0800 | [diff] [blame] | 1790 | __napi_schedule(&tp->napi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1791 | } else { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 1792 | netdev_err(dev, "Error, poll already scheduled\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1793 | } |
| 1794 | return IRQ_HANDLED; |
| 1795 | } |
| 1796 | |
| 1797 | static void |
| 1798 | typhoon_free_rx_rings(struct typhoon *tp) |
| 1799 | { |
| 1800 | u32 i; |
| 1801 | |
| 1802 | for(i = 0; i < RXENT_ENTRIES; i++) { |
| 1803 | struct rxbuff_ent *rxb = &tp->rxbuffers[i]; |
| 1804 | if(rxb->skb) { |
| 1805 | pci_unmap_single(tp->pdev, rxb->dma_addr, PKT_BUF_SZ, |
| 1806 | PCI_DMA_FROMDEVICE); |
| 1807 | dev_kfree_skb(rxb->skb); |
| 1808 | rxb->skb = NULL; |
| 1809 | } |
| 1810 | } |
| 1811 | } |
| 1812 | |
| 1813 | static int |
Al Viro | 03a710f | 2007-08-23 00:44:39 -0400 | [diff] [blame] | 1814 | typhoon_sleep(struct typhoon *tp, pci_power_t state, __le16 events) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1815 | { |
| 1816 | struct pci_dev *pdev = tp->pdev; |
| 1817 | void __iomem *ioaddr = tp->ioaddr; |
| 1818 | struct cmd_desc xp_cmd; |
| 1819 | int err; |
| 1820 | |
| 1821 | INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_ENABLE_WAKE_EVENTS); |
| 1822 | xp_cmd.parm1 = events; |
| 1823 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); |
| 1824 | if(err < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 1825 | netdev_err(tp->dev, "typhoon_sleep(): wake events cmd err %d\n", |
| 1826 | err); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1827 | return err; |
| 1828 | } |
| 1829 | |
| 1830 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_GOTO_SLEEP); |
| 1831 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); |
| 1832 | if(err < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 1833 | netdev_err(tp->dev, "typhoon_sleep(): sleep cmd err %d\n", err); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1834 | return err; |
| 1835 | } |
| 1836 | |
| 1837 | if(typhoon_wait_status(ioaddr, TYPHOON_STATUS_SLEEPING) < 0) |
| 1838 | return -ETIMEDOUT; |
| 1839 | |
| 1840 | /* Since we cannot monitor the status of the link while sleeping, |
| 1841 | * tell the world it went away. |
| 1842 | */ |
| 1843 | netif_carrier_off(tp->dev); |
| 1844 | |
Pavel Machek | 2a56957 | 2005-07-07 17:56:40 -0700 | [diff] [blame] | 1845 | pci_enable_wake(tp->pdev, state, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1846 | pci_disable_device(pdev); |
Pavel Machek | 2a56957 | 2005-07-07 17:56:40 -0700 | [diff] [blame] | 1847 | return pci_set_power_state(pdev, state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1848 | } |
| 1849 | |
| 1850 | static int |
| 1851 | typhoon_wakeup(struct typhoon *tp, int wait_type) |
| 1852 | { |
| 1853 | struct pci_dev *pdev = tp->pdev; |
| 1854 | void __iomem *ioaddr = tp->ioaddr; |
| 1855 | |
| 1856 | pci_set_power_state(pdev, PCI_D0); |
| 1857 | pci_restore_state(pdev); |
| 1858 | |
| 1859 | /* Post 2.x.x versions of the Sleep Image require a reset before |
| 1860 | * we can download the Runtime Image. But let's not make users of |
| 1861 | * the old firmware pay for the reset. |
| 1862 | */ |
| 1863 | iowrite32(TYPHOON_BOOTCMD_WAKEUP, ioaddr + TYPHOON_REG_COMMAND); |
| 1864 | if(typhoon_wait_status(ioaddr, TYPHOON_STATUS_WAITING_FOR_HOST) < 0 || |
| 1865 | (tp->capabilities & TYPHOON_WAKEUP_NEEDS_RESET)) |
| 1866 | return typhoon_reset(ioaddr, wait_type); |
| 1867 | |
| 1868 | return 0; |
| 1869 | } |
| 1870 | |
| 1871 | static int |
| 1872 | typhoon_start_runtime(struct typhoon *tp) |
| 1873 | { |
| 1874 | struct net_device *dev = tp->dev; |
| 1875 | void __iomem *ioaddr = tp->ioaddr; |
| 1876 | struct cmd_desc xp_cmd; |
| 1877 | int err; |
| 1878 | |
| 1879 | typhoon_init_rings(tp); |
| 1880 | typhoon_fill_free_ring(tp); |
| 1881 | |
| 1882 | err = typhoon_download_firmware(tp); |
| 1883 | if(err < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 1884 | netdev_err(tp->dev, "cannot load runtime on 3XP\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1885 | goto error_out; |
| 1886 | } |
| 1887 | |
| 1888 | if(typhoon_boot_3XP(tp, TYPHOON_STATUS_WAITING_FOR_BOOT) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 1889 | netdev_err(tp->dev, "cannot boot 3XP\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1890 | err = -EIO; |
| 1891 | goto error_out; |
| 1892 | } |
| 1893 | |
| 1894 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_SET_MAX_PKT_SIZE); |
| 1895 | xp_cmd.parm1 = cpu_to_le16(PKT_BUF_SZ); |
| 1896 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); |
| 1897 | if(err < 0) |
| 1898 | goto error_out; |
| 1899 | |
| 1900 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_SET_MAC_ADDRESS); |
Al Viro | 03a710f | 2007-08-23 00:44:39 -0400 | [diff] [blame] | 1901 | xp_cmd.parm1 = cpu_to_le16(ntohs(*(__be16 *)&dev->dev_addr[0])); |
| 1902 | xp_cmd.parm2 = cpu_to_le32(ntohl(*(__be32 *)&dev->dev_addr[2])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1903 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); |
| 1904 | if(err < 0) |
| 1905 | goto error_out; |
| 1906 | |
| 1907 | /* Disable IRQ coalescing -- we can reenable it when 3Com gives |
| 1908 | * us some more information on how to control it. |
| 1909 | */ |
| 1910 | INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_IRQ_COALESCE_CTRL); |
| 1911 | xp_cmd.parm1 = 0; |
| 1912 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); |
| 1913 | if(err < 0) |
| 1914 | goto error_out; |
| 1915 | |
| 1916 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_XCVR_SELECT); |
| 1917 | xp_cmd.parm1 = tp->xcvr_select; |
| 1918 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); |
| 1919 | if(err < 0) |
| 1920 | goto error_out; |
| 1921 | |
| 1922 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_VLAN_TYPE_WRITE); |
Harvey Harrison | 649aa95 | 2009-01-18 22:03:01 -0800 | [diff] [blame] | 1923 | xp_cmd.parm1 = cpu_to_le16(ETH_P_8021Q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1924 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); |
| 1925 | if(err < 0) |
| 1926 | goto error_out; |
| 1927 | |
| 1928 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_SET_OFFLOAD_TASKS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1929 | xp_cmd.parm2 = tp->offload; |
| 1930 | xp_cmd.parm3 = tp->offload; |
| 1931 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1932 | if(err < 0) |
| 1933 | goto error_out; |
| 1934 | |
| 1935 | typhoon_set_rx_mode(dev); |
| 1936 | |
| 1937 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_TX_ENABLE); |
| 1938 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); |
| 1939 | if(err < 0) |
| 1940 | goto error_out; |
| 1941 | |
| 1942 | INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_RX_ENABLE); |
| 1943 | err = typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); |
| 1944 | if(err < 0) |
| 1945 | goto error_out; |
| 1946 | |
| 1947 | tp->card_state = Running; |
| 1948 | smp_wmb(); |
| 1949 | |
| 1950 | iowrite32(TYPHOON_INTR_ENABLE_ALL, ioaddr + TYPHOON_REG_INTR_ENABLE); |
| 1951 | iowrite32(TYPHOON_INTR_NONE, ioaddr + TYPHOON_REG_INTR_MASK); |
| 1952 | typhoon_post_pci_writes(ioaddr); |
| 1953 | |
| 1954 | return 0; |
| 1955 | |
| 1956 | error_out: |
| 1957 | typhoon_reset(ioaddr, WaitNoSleep); |
| 1958 | typhoon_free_rx_rings(tp); |
| 1959 | typhoon_init_rings(tp); |
| 1960 | return err; |
| 1961 | } |
| 1962 | |
| 1963 | static int |
| 1964 | typhoon_stop_runtime(struct typhoon *tp, int wait_type) |
| 1965 | { |
| 1966 | struct typhoon_indexes *indexes = tp->indexes; |
| 1967 | struct transmit_ring *txLo = &tp->txLoRing; |
| 1968 | void __iomem *ioaddr = tp->ioaddr; |
| 1969 | struct cmd_desc xp_cmd; |
| 1970 | int i; |
| 1971 | |
| 1972 | /* Disable interrupts early, since we can't schedule a poll |
| 1973 | * when called with !netif_running(). This will be posted |
| 1974 | * when we force the posting of the command. |
| 1975 | */ |
| 1976 | iowrite32(TYPHOON_INTR_NONE, ioaddr + TYPHOON_REG_INTR_ENABLE); |
| 1977 | |
| 1978 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_RX_DISABLE); |
| 1979 | typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); |
| 1980 | |
| 1981 | /* Wait 1/2 sec for any outstanding transmits to occur |
| 1982 | * We'll cleanup after the reset if this times out. |
| 1983 | */ |
| 1984 | for(i = 0; i < TYPHOON_WAIT_TIMEOUT; i++) { |
| 1985 | if(indexes->txLoCleared == cpu_to_le32(txLo->lastWrite)) |
| 1986 | break; |
| 1987 | udelay(TYPHOON_UDELAY); |
| 1988 | } |
| 1989 | |
| 1990 | if(i == TYPHOON_WAIT_TIMEOUT) |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 1991 | netdev_err(tp->dev, "halt timed out waiting for Tx to complete\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1992 | |
| 1993 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_TX_DISABLE); |
| 1994 | typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); |
| 1995 | |
| 1996 | /* save the statistics so when we bring the interface up again, |
| 1997 | * the values reported to userspace are correct. |
| 1998 | */ |
| 1999 | tp->card_state = Sleeping; |
| 2000 | smp_wmb(); |
| 2001 | typhoon_do_get_stats(tp); |
| 2002 | memcpy(&tp->stats_saved, &tp->stats, sizeof(struct net_device_stats)); |
| 2003 | |
| 2004 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_HALT); |
| 2005 | typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL); |
| 2006 | |
| 2007 | if(typhoon_wait_status(ioaddr, TYPHOON_STATUS_HALTED) < 0) |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2008 | netdev_err(tp->dev, "timed out waiting for 3XP to halt\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2009 | |
| 2010 | if(typhoon_reset(ioaddr, wait_type) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2011 | netdev_err(tp->dev, "unable to reset 3XP\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2012 | return -ETIMEDOUT; |
| 2013 | } |
| 2014 | |
| 2015 | /* cleanup any outstanding Tx packets */ |
| 2016 | if(indexes->txLoCleared != cpu_to_le32(txLo->lastWrite)) { |
| 2017 | indexes->txLoCleared = cpu_to_le32(txLo->lastWrite); |
| 2018 | typhoon_clean_tx(tp, &tp->txLoRing, &indexes->txLoCleared); |
| 2019 | } |
| 2020 | |
| 2021 | return 0; |
| 2022 | } |
| 2023 | |
| 2024 | static void |
| 2025 | typhoon_tx_timeout(struct net_device *dev) |
| 2026 | { |
| 2027 | struct typhoon *tp = netdev_priv(dev); |
| 2028 | |
| 2029 | if(typhoon_reset(tp->ioaddr, WaitNoSleep) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2030 | netdev_warn(dev, "could not reset in tx timeout\n"); |
Adam Buchbinder | a089377 | 2009-12-11 16:35:38 -0500 | [diff] [blame] | 2031 | goto truly_dead; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2032 | } |
| 2033 | |
| 2034 | /* If we ever start using the Hi ring, it will need cleaning too */ |
| 2035 | typhoon_clean_tx(tp, &tp->txLoRing, &tp->indexes->txLoCleared); |
| 2036 | typhoon_free_rx_rings(tp); |
| 2037 | |
| 2038 | if(typhoon_start_runtime(tp) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2039 | netdev_err(dev, "could not start runtime in tx timeout\n"); |
Adam Buchbinder | a089377 | 2009-12-11 16:35:38 -0500 | [diff] [blame] | 2040 | goto truly_dead; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2041 | } |
| 2042 | |
| 2043 | netif_wake_queue(dev); |
| 2044 | return; |
| 2045 | |
Adam Buchbinder | a089377 | 2009-12-11 16:35:38 -0500 | [diff] [blame] | 2046 | truly_dead: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2047 | /* Reset the hardware, and turn off carrier to avoid more timeouts */ |
| 2048 | typhoon_reset(tp->ioaddr, NoWait); |
| 2049 | netif_carrier_off(dev); |
| 2050 | } |
| 2051 | |
| 2052 | static int |
| 2053 | typhoon_open(struct net_device *dev) |
| 2054 | { |
| 2055 | struct typhoon *tp = netdev_priv(dev); |
| 2056 | int err; |
| 2057 | |
Ben Hutchings | b775a75 | 2009-02-26 23:21:23 -0800 | [diff] [blame] | 2058 | err = typhoon_request_firmware(tp); |
| 2059 | if (err) |
| 2060 | goto out; |
| 2061 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2062 | err = typhoon_wakeup(tp, WaitSleep); |
| 2063 | if(err < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2064 | netdev_err(dev, "unable to wakeup device\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2065 | goto out_sleep; |
| 2066 | } |
| 2067 | |
Julia Lawall | aa36ab8 | 2009-11-18 08:23:34 +0000 | [diff] [blame] | 2068 | err = request_irq(dev->irq, typhoon_interrupt, IRQF_SHARED, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2069 | dev->name, dev); |
| 2070 | if(err < 0) |
| 2071 | goto out_sleep; |
| 2072 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2073 | napi_enable(&tp->napi); |
| 2074 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2075 | err = typhoon_start_runtime(tp); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2076 | if(err < 0) { |
| 2077 | napi_disable(&tp->napi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2078 | goto out_irq; |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2079 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2080 | |
| 2081 | netif_start_queue(dev); |
| 2082 | return 0; |
| 2083 | |
| 2084 | out_irq: |
| 2085 | free_irq(dev->irq, dev); |
| 2086 | |
| 2087 | out_sleep: |
| 2088 | if(typhoon_boot_3XP(tp, TYPHOON_STATUS_WAITING_FOR_HOST) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2089 | netdev_err(dev, "unable to reboot into sleep img\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2090 | typhoon_reset(tp->ioaddr, NoWait); |
| 2091 | goto out; |
| 2092 | } |
| 2093 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2094 | if(typhoon_sleep(tp, PCI_D3hot, 0) < 0) |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2095 | netdev_err(dev, "unable to go back to sleep\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2096 | |
| 2097 | out: |
| 2098 | return err; |
| 2099 | } |
| 2100 | |
| 2101 | static int |
| 2102 | typhoon_close(struct net_device *dev) |
| 2103 | { |
| 2104 | struct typhoon *tp = netdev_priv(dev); |
| 2105 | |
| 2106 | netif_stop_queue(dev); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2107 | napi_disable(&tp->napi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2108 | |
| 2109 | if(typhoon_stop_runtime(tp, WaitSleep) < 0) |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2110 | netdev_err(dev, "unable to stop runtime\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2111 | |
| 2112 | /* Make sure there is no irq handler running on a different CPU. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2113 | free_irq(dev->irq, dev); |
| 2114 | |
| 2115 | typhoon_free_rx_rings(tp); |
| 2116 | typhoon_init_rings(tp); |
| 2117 | |
| 2118 | if(typhoon_boot_3XP(tp, TYPHOON_STATUS_WAITING_FOR_HOST) < 0) |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2119 | netdev_err(dev, "unable to boot sleep image\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2120 | |
| 2121 | if(typhoon_sleep(tp, PCI_D3hot, 0) < 0) |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2122 | netdev_err(dev, "unable to put card to sleep\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2123 | |
| 2124 | return 0; |
| 2125 | } |
| 2126 | |
| 2127 | #ifdef CONFIG_PM |
| 2128 | static int |
| 2129 | typhoon_resume(struct pci_dev *pdev) |
| 2130 | { |
| 2131 | struct net_device *dev = pci_get_drvdata(pdev); |
| 2132 | struct typhoon *tp = netdev_priv(dev); |
| 2133 | |
| 2134 | /* If we're down, resume when we are upped. |
| 2135 | */ |
| 2136 | if(!netif_running(dev)) |
| 2137 | return 0; |
| 2138 | |
| 2139 | if(typhoon_wakeup(tp, WaitNoSleep) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2140 | netdev_err(dev, "critical: could not wake up in resume\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2141 | goto reset; |
| 2142 | } |
| 2143 | |
| 2144 | if(typhoon_start_runtime(tp) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2145 | netdev_err(dev, "critical: could not start runtime in resume\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2146 | goto reset; |
| 2147 | } |
| 2148 | |
| 2149 | netif_device_attach(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2150 | return 0; |
| 2151 | |
| 2152 | reset: |
| 2153 | typhoon_reset(tp->ioaddr, NoWait); |
| 2154 | return -EBUSY; |
| 2155 | } |
| 2156 | |
| 2157 | static int |
| 2158 | typhoon_suspend(struct pci_dev *pdev, pm_message_t state) |
| 2159 | { |
| 2160 | struct net_device *dev = pci_get_drvdata(pdev); |
| 2161 | struct typhoon *tp = netdev_priv(dev); |
| 2162 | struct cmd_desc xp_cmd; |
| 2163 | |
| 2164 | /* If we're down, we're already suspended. |
| 2165 | */ |
| 2166 | if(!netif_running(dev)) |
| 2167 | return 0; |
| 2168 | |
David Dillow | fd59cba | 2010-10-24 10:20:21 +0000 | [diff] [blame] | 2169 | /* TYPHOON_OFFLOAD_VLAN is always on now, so this doesn't work */ |
| 2170 | if(tp->wol_events & TYPHOON_WAKE_MAGIC_PKT) |
| 2171 | netdev_warn(dev, "cannot do WAKE_MAGIC with VLAN offloading\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2172 | |
| 2173 | netif_device_detach(dev); |
| 2174 | |
| 2175 | if(typhoon_stop_runtime(tp, WaitNoSleep) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2176 | netdev_err(dev, "unable to stop runtime\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2177 | goto need_resume; |
| 2178 | } |
| 2179 | |
| 2180 | typhoon_free_rx_rings(tp); |
| 2181 | typhoon_init_rings(tp); |
| 2182 | |
| 2183 | if(typhoon_boot_3XP(tp, TYPHOON_STATUS_WAITING_FOR_HOST) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2184 | netdev_err(dev, "unable to boot sleep image\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2185 | goto need_resume; |
| 2186 | } |
| 2187 | |
| 2188 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_SET_MAC_ADDRESS); |
Al Viro | 03a710f | 2007-08-23 00:44:39 -0400 | [diff] [blame] | 2189 | xp_cmd.parm1 = cpu_to_le16(ntohs(*(__be16 *)&dev->dev_addr[0])); |
| 2190 | xp_cmd.parm2 = cpu_to_le32(ntohl(*(__be32 *)&dev->dev_addr[2])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2191 | if(typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2192 | netdev_err(dev, "unable to set mac address in suspend\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2193 | goto need_resume; |
| 2194 | } |
| 2195 | |
| 2196 | INIT_COMMAND_NO_RESPONSE(&xp_cmd, TYPHOON_CMD_SET_RX_FILTER); |
| 2197 | xp_cmd.parm1 = TYPHOON_RX_FILTER_DIRECTED | TYPHOON_RX_FILTER_BROADCAST; |
| 2198 | if(typhoon_issue_command(tp, 1, &xp_cmd, 0, NULL) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2199 | netdev_err(dev, "unable to set rx filter in suspend\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2200 | goto need_resume; |
| 2201 | } |
| 2202 | |
Pavel Machek | 2a56957 | 2005-07-07 17:56:40 -0700 | [diff] [blame] | 2203 | if(typhoon_sleep(tp, pci_choose_state(pdev, state), tp->wol_events) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2204 | netdev_err(dev, "unable to put card to sleep\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2205 | goto need_resume; |
| 2206 | } |
| 2207 | |
| 2208 | return 0; |
| 2209 | |
| 2210 | need_resume: |
| 2211 | typhoon_resume(pdev); |
| 2212 | return -EBUSY; |
| 2213 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2214 | #endif |
| 2215 | |
| 2216 | static int __devinit |
| 2217 | typhoon_test_mmio(struct pci_dev *pdev) |
| 2218 | { |
| 2219 | void __iomem *ioaddr = pci_iomap(pdev, 1, 128); |
| 2220 | int mode = 0; |
| 2221 | u32 val; |
| 2222 | |
| 2223 | if(!ioaddr) |
| 2224 | goto out; |
| 2225 | |
| 2226 | if(ioread32(ioaddr + TYPHOON_REG_STATUS) != |
| 2227 | TYPHOON_STATUS_WAITING_FOR_HOST) |
| 2228 | goto out_unmap; |
| 2229 | |
| 2230 | iowrite32(TYPHOON_INTR_ALL, ioaddr + TYPHOON_REG_INTR_MASK); |
| 2231 | iowrite32(TYPHOON_INTR_ALL, ioaddr + TYPHOON_REG_INTR_STATUS); |
| 2232 | iowrite32(TYPHOON_INTR_ALL, ioaddr + TYPHOON_REG_INTR_ENABLE); |
| 2233 | |
| 2234 | /* Ok, see if we can change our interrupt status register by |
| 2235 | * sending ourselves an interrupt. If so, then MMIO works. |
| 2236 | * The 50usec delay is arbitrary -- it could probably be smaller. |
| 2237 | */ |
| 2238 | val = ioread32(ioaddr + TYPHOON_REG_INTR_STATUS); |
| 2239 | if((val & TYPHOON_INTR_SELF) == 0) { |
| 2240 | iowrite32(1, ioaddr + TYPHOON_REG_SELF_INTERRUPT); |
| 2241 | ioread32(ioaddr + TYPHOON_REG_INTR_STATUS); |
| 2242 | udelay(50); |
| 2243 | val = ioread32(ioaddr + TYPHOON_REG_INTR_STATUS); |
| 2244 | if(val & TYPHOON_INTR_SELF) |
| 2245 | mode = 1; |
| 2246 | } |
| 2247 | |
| 2248 | iowrite32(TYPHOON_INTR_ALL, ioaddr + TYPHOON_REG_INTR_MASK); |
| 2249 | iowrite32(TYPHOON_INTR_ALL, ioaddr + TYPHOON_REG_INTR_STATUS); |
| 2250 | iowrite32(TYPHOON_INTR_NONE, ioaddr + TYPHOON_REG_INTR_ENABLE); |
| 2251 | ioread32(ioaddr + TYPHOON_REG_INTR_STATUS); |
| 2252 | |
| 2253 | out_unmap: |
| 2254 | pci_iounmap(pdev, ioaddr); |
| 2255 | |
| 2256 | out: |
| 2257 | if(!mode) |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2258 | pr_info("%s: falling back to port IO\n", pci_name(pdev)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2259 | return mode; |
| 2260 | } |
| 2261 | |
Stephen Hemminger | 8bdd555 | 2009-01-07 17:29:46 -0800 | [diff] [blame] | 2262 | static const struct net_device_ops typhoon_netdev_ops = { |
| 2263 | .ndo_open = typhoon_open, |
| 2264 | .ndo_stop = typhoon_close, |
| 2265 | .ndo_start_xmit = typhoon_start_tx, |
Jiri Pirko | afc4b13 | 2011-08-16 06:29:01 +0000 | [diff] [blame] | 2266 | .ndo_set_rx_mode = typhoon_set_rx_mode, |
Stephen Hemminger | 8bdd555 | 2009-01-07 17:29:46 -0800 | [diff] [blame] | 2267 | .ndo_tx_timeout = typhoon_tx_timeout, |
| 2268 | .ndo_get_stats = typhoon_get_stats, |
| 2269 | .ndo_validate_addr = eth_validate_addr, |
| 2270 | .ndo_set_mac_address = typhoon_set_mac_address, |
| 2271 | .ndo_change_mtu = eth_change_mtu, |
Stephen Hemminger | 8bdd555 | 2009-01-07 17:29:46 -0800 | [diff] [blame] | 2272 | }; |
| 2273 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2274 | static int __devinit |
| 2275 | typhoon_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) |
| 2276 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2277 | struct net_device *dev; |
| 2278 | struct typhoon *tp; |
| 2279 | int card_id = (int) ent->driver_data; |
| 2280 | void __iomem *ioaddr; |
| 2281 | void *shared; |
| 2282 | dma_addr_t shared_dma; |
| 2283 | struct cmd_desc xp_cmd; |
| 2284 | struct resp_desc xp_resp[3]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2285 | int err = 0; |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2286 | const char *err_msg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2287 | |
| 2288 | dev = alloc_etherdev(sizeof(*tp)); |
| 2289 | if(dev == NULL) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2290 | err_msg = "unable to alloc new net device"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2291 | err = -ENOMEM; |
| 2292 | goto error_out; |
| 2293 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2294 | SET_NETDEV_DEV(dev, &pdev->dev); |
| 2295 | |
| 2296 | err = pci_enable_device(pdev); |
| 2297 | if(err < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2298 | err_msg = "unable to enable device"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2299 | goto error_out_dev; |
| 2300 | } |
| 2301 | |
| 2302 | err = pci_set_mwi(pdev); |
| 2303 | if(err < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2304 | err_msg = "unable to set MWI"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2305 | goto error_out_disable; |
| 2306 | } |
| 2307 | |
Yang Hongyang | 284901a | 2009-04-06 19:01:15 -0700 | [diff] [blame] | 2308 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2309 | if(err < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2310 | err_msg = "No usable DMA configuration"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2311 | goto error_out_mwi; |
| 2312 | } |
| 2313 | |
| 2314 | /* sanity checks on IO and MMIO BARs |
| 2315 | */ |
| 2316 | if(!(pci_resource_flags(pdev, 0) & IORESOURCE_IO)) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2317 | err_msg = "region #1 not a PCI IO resource, aborting"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2318 | err = -ENODEV; |
| 2319 | goto error_out_mwi; |
| 2320 | } |
| 2321 | if(pci_resource_len(pdev, 0) < 128) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2322 | err_msg = "Invalid PCI IO region size, aborting"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2323 | err = -ENODEV; |
| 2324 | goto error_out_mwi; |
| 2325 | } |
| 2326 | if(!(pci_resource_flags(pdev, 1) & IORESOURCE_MEM)) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2327 | err_msg = "region #1 not a PCI MMIO resource, aborting"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2328 | err = -ENODEV; |
| 2329 | goto error_out_mwi; |
| 2330 | } |
| 2331 | if(pci_resource_len(pdev, 1) < 128) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2332 | err_msg = "Invalid PCI MMIO region size, aborting"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2333 | err = -ENODEV; |
| 2334 | goto error_out_mwi; |
| 2335 | } |
| 2336 | |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2337 | err = pci_request_regions(pdev, KBUILD_MODNAME); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2338 | if(err < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2339 | err_msg = "could not request regions"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2340 | goto error_out_mwi; |
| 2341 | } |
| 2342 | |
| 2343 | /* map our registers |
| 2344 | */ |
| 2345 | if(use_mmio != 0 && use_mmio != 1) |
| 2346 | use_mmio = typhoon_test_mmio(pdev); |
| 2347 | |
| 2348 | ioaddr = pci_iomap(pdev, use_mmio, 128); |
| 2349 | if (!ioaddr) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2350 | err_msg = "cannot remap registers, aborting"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2351 | err = -EIO; |
| 2352 | goto error_out_regions; |
| 2353 | } |
| 2354 | |
| 2355 | /* allocate pci dma space for rx and tx descriptor rings |
| 2356 | */ |
| 2357 | shared = pci_alloc_consistent(pdev, sizeof(struct typhoon_shared), |
| 2358 | &shared_dma); |
| 2359 | if(!shared) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2360 | err_msg = "could not allocate DMA memory"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2361 | err = -ENOMEM; |
| 2362 | goto error_out_remap; |
| 2363 | } |
| 2364 | |
| 2365 | dev->irq = pdev->irq; |
| 2366 | tp = netdev_priv(dev); |
Joe Perches | 43d620c | 2011-06-16 19:08:06 +0000 | [diff] [blame] | 2367 | tp->shared = shared; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2368 | tp->shared_dma = shared_dma; |
| 2369 | tp->pdev = pdev; |
| 2370 | tp->tx_pdev = pdev; |
| 2371 | tp->ioaddr = ioaddr; |
| 2372 | tp->tx_ioaddr = ioaddr; |
| 2373 | tp->dev = dev; |
| 2374 | |
| 2375 | /* Init sequence: |
| 2376 | * 1) Reset the adapter to clear any bad juju |
| 2377 | * 2) Reload the sleep image |
| 2378 | * 3) Boot the sleep image |
| 2379 | * 4) Get the hardware address. |
| 2380 | * 5) Put the card to sleep. |
| 2381 | */ |
| 2382 | if (typhoon_reset(ioaddr, WaitSleep) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2383 | err_msg = "could not reset 3XP"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2384 | err = -EIO; |
| 2385 | goto error_out_dma; |
| 2386 | } |
| 2387 | |
| 2388 | /* Now that we've reset the 3XP and are sure it's not going to |
| 2389 | * write all over memory, enable bus mastering, and save our |
| 2390 | * state for resuming after a suspend. |
| 2391 | */ |
| 2392 | pci_set_master(pdev); |
| 2393 | pci_save_state(pdev); |
| 2394 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2395 | typhoon_init_interface(tp); |
| 2396 | typhoon_init_rings(tp); |
| 2397 | |
| 2398 | if(typhoon_boot_3XP(tp, TYPHOON_STATUS_WAITING_FOR_HOST) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2399 | err_msg = "cannot boot 3XP sleep image"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2400 | err = -EIO; |
| 2401 | goto error_out_reset; |
| 2402 | } |
| 2403 | |
| 2404 | INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_READ_MAC_ADDRESS); |
| 2405 | if(typhoon_issue_command(tp, 1, &xp_cmd, 1, xp_resp) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2406 | err_msg = "cannot read MAC address"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2407 | err = -EIO; |
| 2408 | goto error_out_reset; |
| 2409 | } |
| 2410 | |
Al Viro | 03a710f | 2007-08-23 00:44:39 -0400 | [diff] [blame] | 2411 | *(__be16 *)&dev->dev_addr[0] = htons(le16_to_cpu(xp_resp[0].parm1)); |
| 2412 | *(__be32 *)&dev->dev_addr[2] = htonl(le32_to_cpu(xp_resp[0].parm2)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2413 | |
| 2414 | if(!is_valid_ether_addr(dev->dev_addr)) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2415 | err_msg = "Could not obtain valid ethernet address, aborting"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2416 | goto error_out_reset; |
| 2417 | } |
| 2418 | |
| 2419 | /* Read the Sleep Image version last, so the response is valid |
| 2420 | * later when we print out the version reported. |
| 2421 | */ |
| 2422 | INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_READ_VERSIONS); |
| 2423 | if(typhoon_issue_command(tp, 1, &xp_cmd, 3, xp_resp) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2424 | err_msg = "Could not get Sleep Image version"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2425 | goto error_out_reset; |
| 2426 | } |
| 2427 | |
| 2428 | tp->capabilities = typhoon_card_info[card_id].capabilities; |
| 2429 | tp->xcvr_select = TYPHOON_XCVR_AUTONEG; |
| 2430 | |
| 2431 | /* Typhoon 1.0 Sleep Images return one response descriptor to the |
| 2432 | * READ_VERSIONS command. Those versions are OK after waking up |
| 2433 | * from sleep without needing a reset. Typhoon 1.1+ Sleep Images |
| 2434 | * seem to need a little extra help to get started. Since we don't |
| 2435 | * know how to nudge it along, just kick it. |
| 2436 | */ |
| 2437 | if(xp_resp[0].numDesc != 0) |
| 2438 | tp->capabilities |= TYPHOON_WAKEUP_NEEDS_RESET; |
| 2439 | |
| 2440 | if(typhoon_sleep(tp, PCI_D3hot, 0) < 0) { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2441 | err_msg = "cannot put adapter to sleep"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2442 | err = -EIO; |
| 2443 | goto error_out_reset; |
| 2444 | } |
| 2445 | |
| 2446 | /* The chip-specific entries in the device structure. */ |
Stephen Hemminger | 8bdd555 | 2009-01-07 17:29:46 -0800 | [diff] [blame] | 2447 | dev->netdev_ops = &typhoon_netdev_ops; |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2448 | netif_napi_add(dev, &tp->napi, typhoon_poll, 16); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2449 | dev->watchdog_timeo = TX_TIMEOUT; |
Stephen Hemminger | 25805dc | 2007-06-01 09:44:01 -0700 | [diff] [blame] | 2450 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2451 | SET_ETHTOOL_OPS(dev, &typhoon_ethtool_ops); |
| 2452 | |
| 2453 | /* We can handle scatter gather, up to 16 entries, and |
| 2454 | * we can do IP checksumming (only version 4, doh...) |
Michał Mirosław | 86688a8 | 2011-04-17 00:15:47 +0000 | [diff] [blame] | 2455 | * |
| 2456 | * There's no way to turn off the RX VLAN offloading and stripping |
| 2457 | * on the current 3XP firmware -- it does not respect the offload |
| 2458 | * settings -- so we only allow the user to toggle the TX processing. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2459 | */ |
Michał Mirosław | 86688a8 | 2011-04-17 00:15:47 +0000 | [diff] [blame] | 2460 | dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO | |
| 2461 | NETIF_F_HW_VLAN_TX; |
| 2462 | dev->features = dev->hw_features | |
| 2463 | NETIF_F_HW_VLAN_RX | NETIF_F_RXCSUM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2464 | |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2465 | if(register_netdev(dev) < 0) { |
| 2466 | err_msg = "unable to register netdev"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2467 | goto error_out_reset; |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2468 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2469 | |
| 2470 | pci_set_drvdata(pdev, dev); |
| 2471 | |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2472 | netdev_info(dev, "%s at %s 0x%llx, %pM\n", |
| 2473 | typhoon_card_info[card_id].name, |
| 2474 | use_mmio ? "MMIO" : "IO", |
| 2475 | (unsigned long long)pci_resource_start(pdev, use_mmio), |
| 2476 | dev->dev_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2477 | |
| 2478 | /* xp_resp still contains the response to the READ_VERSIONS command. |
| 2479 | * For debugging, let the user know what version he has. |
| 2480 | */ |
| 2481 | if(xp_resp[0].numDesc == 0) { |
| 2482 | /* This is the Typhoon 1.0 type Sleep Image, last 16 bits |
| 2483 | * of version is Month/Day of build. |
| 2484 | */ |
| 2485 | u16 monthday = le32_to_cpu(xp_resp[0].parm2) & 0xffff; |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2486 | netdev_info(dev, "Typhoon 1.0 Sleep Image built %02u/%02u/2000\n", |
| 2487 | monthday >> 8, monthday & 0xff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2488 | } else if(xp_resp[0].numDesc == 2) { |
| 2489 | /* This is the Typhoon 1.1+ type Sleep Image |
| 2490 | */ |
| 2491 | u32 sleep_ver = le32_to_cpu(xp_resp[0].parm2); |
| 2492 | u8 *ver_string = (u8 *) &xp_resp[1]; |
| 2493 | ver_string[25] = 0; |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2494 | netdev_info(dev, "Typhoon 1.1+ Sleep Image version %02x.%03x.%03x %s\n", |
| 2495 | sleep_ver >> 24, (sleep_ver >> 12) & 0xfff, |
| 2496 | sleep_ver & 0xfff, ver_string); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2497 | } else { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2498 | netdev_warn(dev, "Unknown Sleep Image version (%u:%04x)\n", |
| 2499 | xp_resp[0].numDesc, le32_to_cpu(xp_resp[0].parm2)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2500 | } |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2501 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2502 | return 0; |
| 2503 | |
| 2504 | error_out_reset: |
| 2505 | typhoon_reset(ioaddr, NoWait); |
| 2506 | |
| 2507 | error_out_dma: |
| 2508 | pci_free_consistent(pdev, sizeof(struct typhoon_shared), |
| 2509 | shared, shared_dma); |
| 2510 | error_out_remap: |
| 2511 | pci_iounmap(pdev, ioaddr); |
| 2512 | error_out_regions: |
| 2513 | pci_release_regions(pdev); |
| 2514 | error_out_mwi: |
| 2515 | pci_clear_mwi(pdev); |
| 2516 | error_out_disable: |
| 2517 | pci_disable_device(pdev); |
| 2518 | error_out_dev: |
| 2519 | free_netdev(dev); |
| 2520 | error_out: |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2521 | pr_err("%s: %s\n", pci_name(pdev), err_msg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2522 | return err; |
| 2523 | } |
| 2524 | |
| 2525 | static void __devexit |
| 2526 | typhoon_remove_one(struct pci_dev *pdev) |
| 2527 | { |
| 2528 | struct net_device *dev = pci_get_drvdata(pdev); |
| 2529 | struct typhoon *tp = netdev_priv(dev); |
| 2530 | |
| 2531 | unregister_netdev(dev); |
| 2532 | pci_set_power_state(pdev, PCI_D0); |
| 2533 | pci_restore_state(pdev); |
| 2534 | typhoon_reset(tp->ioaddr, NoWait); |
| 2535 | pci_iounmap(pdev, tp->ioaddr); |
| 2536 | pci_free_consistent(pdev, sizeof(struct typhoon_shared), |
| 2537 | tp->shared, tp->shared_dma); |
| 2538 | pci_release_regions(pdev); |
| 2539 | pci_clear_mwi(pdev); |
| 2540 | pci_disable_device(pdev); |
| 2541 | pci_set_drvdata(pdev, NULL); |
| 2542 | free_netdev(dev); |
| 2543 | } |
| 2544 | |
| 2545 | static struct pci_driver typhoon_driver = { |
Joe Perches | 0bc88e4 | 2010-02-21 17:08:47 +0000 | [diff] [blame] | 2546 | .name = KBUILD_MODNAME, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2547 | .id_table = typhoon_pci_tbl, |
| 2548 | .probe = typhoon_init_one, |
| 2549 | .remove = __devexit_p(typhoon_remove_one), |
| 2550 | #ifdef CONFIG_PM |
| 2551 | .suspend = typhoon_suspend, |
| 2552 | .resume = typhoon_resume, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2553 | #endif |
| 2554 | }; |
| 2555 | |
| 2556 | static int __init |
| 2557 | typhoon_init(void) |
| 2558 | { |
Jeff Garzik | 2991762 | 2006-08-19 17:48:59 -0400 | [diff] [blame] | 2559 | return pci_register_driver(&typhoon_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2560 | } |
| 2561 | |
| 2562 | static void __exit |
| 2563 | typhoon_cleanup(void) |
| 2564 | { |
David Dillow | a8c9a53 | 2009-03-02 22:15:09 -0800 | [diff] [blame] | 2565 | if (typhoon_fw) |
Ben Hutchings | b775a75 | 2009-02-26 23:21:23 -0800 | [diff] [blame] | 2566 | release_firmware(typhoon_fw); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2567 | pci_unregister_driver(&typhoon_driver); |
| 2568 | } |
| 2569 | |
| 2570 | module_init(typhoon_init); |
| 2571 | module_exit(typhoon_cleanup); |