David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1 | /* niu.c: Neptune ethernet driver. |
| 2 | * |
David S. Miller | be0c007 | 2008-05-04 01:34:31 -0700 | [diff] [blame] | 3 | * Copyright (C) 2007, 2008 David S. Miller (davem@davemloft.net) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4 | */ |
| 5 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 6 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 7 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8 | #include <linux/module.h> |
| 9 | #include <linux/init.h> |
| 10 | #include <linux/pci.h> |
| 11 | #include <linux/dma-mapping.h> |
| 12 | #include <linux/netdevice.h> |
| 13 | #include <linux/ethtool.h> |
| 14 | #include <linux/etherdevice.h> |
| 15 | #include <linux/platform_device.h> |
| 16 | #include <linux/delay.h> |
| 17 | #include <linux/bitops.h> |
| 18 | #include <linux/mii.h> |
| 19 | #include <linux/if_ether.h> |
| 20 | #include <linux/if_vlan.h> |
| 21 | #include <linux/ip.h> |
| 22 | #include <linux/in.h> |
| 23 | #include <linux/ipv6.h> |
| 24 | #include <linux/log2.h> |
| 25 | #include <linux/jiffies.h> |
| 26 | #include <linux/crc32.h> |
Jiri Pirko | ccffad25 | 2009-05-22 23:22:17 +0000 | [diff] [blame] | 27 | #include <linux/list.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 28 | #include <linux/slab.h> |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 29 | |
| 30 | #include <linux/io.h> |
| 31 | |
| 32 | #ifdef CONFIG_SPARC64 |
| 33 | #include <linux/of_device.h> |
| 34 | #endif |
| 35 | |
| 36 | #include "niu.h" |
| 37 | |
| 38 | #define DRV_MODULE_NAME "niu" |
David S. Miller | 3cfa856 | 2010-04-22 15:48:17 -0700 | [diff] [blame] | 39 | #define DRV_MODULE_VERSION "1.1" |
| 40 | #define DRV_MODULE_RELDATE "Apr 22, 2010" |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 41 | |
| 42 | static char version[] __devinitdata = |
| 43 | DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; |
| 44 | |
| 45 | MODULE_AUTHOR("David S. Miller (davem@davemloft.net)"); |
| 46 | MODULE_DESCRIPTION("NIU ethernet driver"); |
| 47 | MODULE_LICENSE("GPL"); |
| 48 | MODULE_VERSION(DRV_MODULE_VERSION); |
| 49 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 50 | #ifndef readq |
| 51 | static u64 readq(void __iomem *reg) |
| 52 | { |
David S. Miller | e23a59e | 2008-11-12 14:32:54 -0800 | [diff] [blame] | 53 | return ((u64) readl(reg)) | (((u64) readl(reg + 4UL)) << 32); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 54 | } |
| 55 | |
| 56 | static void writeq(u64 val, void __iomem *reg) |
| 57 | { |
| 58 | writel(val & 0xffffffff, reg); |
| 59 | writel(val >> 32, reg + 0x4UL); |
| 60 | } |
| 61 | #endif |
| 62 | |
Alexey Dobriyan | a3aa188 | 2010-01-07 11:58:11 +0000 | [diff] [blame] | 63 | static DEFINE_PCI_DEVICE_TABLE(niu_pci_tbl) = { |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 64 | {PCI_DEVICE(PCI_VENDOR_ID_SUN, 0xabcd)}, |
| 65 | {} |
| 66 | }; |
| 67 | |
| 68 | MODULE_DEVICE_TABLE(pci, niu_pci_tbl); |
| 69 | |
| 70 | #define NIU_TX_TIMEOUT (5 * HZ) |
| 71 | |
| 72 | #define nr64(reg) readq(np->regs + (reg)) |
| 73 | #define nw64(reg, val) writeq((val), np->regs + (reg)) |
| 74 | |
| 75 | #define nr64_mac(reg) readq(np->mac_regs + (reg)) |
| 76 | #define nw64_mac(reg, val) writeq((val), np->mac_regs + (reg)) |
| 77 | |
| 78 | #define nr64_ipp(reg) readq(np->regs + np->ipp_off + (reg)) |
| 79 | #define nw64_ipp(reg, val) writeq((val), np->regs + np->ipp_off + (reg)) |
| 80 | |
| 81 | #define nr64_pcs(reg) readq(np->regs + np->pcs_off + (reg)) |
| 82 | #define nw64_pcs(reg, val) writeq((val), np->regs + np->pcs_off + (reg)) |
| 83 | |
| 84 | #define nr64_xpcs(reg) readq(np->regs + np->xpcs_off + (reg)) |
| 85 | #define nw64_xpcs(reg, val) writeq((val), np->regs + np->xpcs_off + (reg)) |
| 86 | |
| 87 | #define NIU_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK) |
| 88 | |
| 89 | static int niu_debug; |
| 90 | static int debug = -1; |
| 91 | module_param(debug, int, 0); |
| 92 | MODULE_PARM_DESC(debug, "NIU debug level"); |
| 93 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 94 | #define niu_lock_parent(np, flags) \ |
| 95 | spin_lock_irqsave(&np->parent->lock, flags) |
| 96 | #define niu_unlock_parent(np, flags) \ |
| 97 | spin_unlock_irqrestore(&np->parent->lock, flags) |
| 98 | |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 99 | static int serdes_init_10g_serdes(struct niu *np); |
| 100 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 101 | static int __niu_wait_bits_clear_mac(struct niu *np, unsigned long reg, |
| 102 | u64 bits, int limit, int delay) |
| 103 | { |
| 104 | while (--limit >= 0) { |
| 105 | u64 val = nr64_mac(reg); |
| 106 | |
| 107 | if (!(val & bits)) |
| 108 | break; |
| 109 | udelay(delay); |
| 110 | } |
| 111 | if (limit < 0) |
| 112 | return -ENODEV; |
| 113 | return 0; |
| 114 | } |
| 115 | |
| 116 | static int __niu_set_and_wait_clear_mac(struct niu *np, unsigned long reg, |
| 117 | u64 bits, int limit, int delay, |
| 118 | const char *reg_name) |
| 119 | { |
| 120 | int err; |
| 121 | |
| 122 | nw64_mac(reg, bits); |
| 123 | err = __niu_wait_bits_clear_mac(np, reg, bits, limit, delay); |
| 124 | if (err) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 125 | netdev_err(np->dev, "bits (%llx) of register %s would not clear, val[%llx]\n", |
| 126 | (unsigned long long)bits, reg_name, |
| 127 | (unsigned long long)nr64_mac(reg)); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 128 | return err; |
| 129 | } |
| 130 | |
| 131 | #define niu_set_and_wait_clear_mac(NP, REG, BITS, LIMIT, DELAY, REG_NAME) \ |
| 132 | ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \ |
| 133 | __niu_set_and_wait_clear_mac(NP, REG, BITS, LIMIT, DELAY, REG_NAME); \ |
| 134 | }) |
| 135 | |
| 136 | static int __niu_wait_bits_clear_ipp(struct niu *np, unsigned long reg, |
| 137 | u64 bits, int limit, int delay) |
| 138 | { |
| 139 | while (--limit >= 0) { |
| 140 | u64 val = nr64_ipp(reg); |
| 141 | |
| 142 | if (!(val & bits)) |
| 143 | break; |
| 144 | udelay(delay); |
| 145 | } |
| 146 | if (limit < 0) |
| 147 | return -ENODEV; |
| 148 | return 0; |
| 149 | } |
| 150 | |
| 151 | static int __niu_set_and_wait_clear_ipp(struct niu *np, unsigned long reg, |
| 152 | u64 bits, int limit, int delay, |
| 153 | const char *reg_name) |
| 154 | { |
| 155 | int err; |
| 156 | u64 val; |
| 157 | |
| 158 | val = nr64_ipp(reg); |
| 159 | val |= bits; |
| 160 | nw64_ipp(reg, val); |
| 161 | |
| 162 | err = __niu_wait_bits_clear_ipp(np, reg, bits, limit, delay); |
| 163 | if (err) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 164 | netdev_err(np->dev, "bits (%llx) of register %s would not clear, val[%llx]\n", |
| 165 | (unsigned long long)bits, reg_name, |
| 166 | (unsigned long long)nr64_ipp(reg)); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 167 | return err; |
| 168 | } |
| 169 | |
| 170 | #define niu_set_and_wait_clear_ipp(NP, REG, BITS, LIMIT, DELAY, REG_NAME) \ |
| 171 | ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \ |
| 172 | __niu_set_and_wait_clear_ipp(NP, REG, BITS, LIMIT, DELAY, REG_NAME); \ |
| 173 | }) |
| 174 | |
| 175 | static int __niu_wait_bits_clear(struct niu *np, unsigned long reg, |
| 176 | u64 bits, int limit, int delay) |
| 177 | { |
| 178 | while (--limit >= 0) { |
| 179 | u64 val = nr64(reg); |
| 180 | |
| 181 | if (!(val & bits)) |
| 182 | break; |
| 183 | udelay(delay); |
| 184 | } |
| 185 | if (limit < 0) |
| 186 | return -ENODEV; |
| 187 | return 0; |
| 188 | } |
| 189 | |
| 190 | #define niu_wait_bits_clear(NP, REG, BITS, LIMIT, DELAY) \ |
| 191 | ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \ |
| 192 | __niu_wait_bits_clear(NP, REG, BITS, LIMIT, DELAY); \ |
| 193 | }) |
| 194 | |
| 195 | static int __niu_set_and_wait_clear(struct niu *np, unsigned long reg, |
| 196 | u64 bits, int limit, int delay, |
| 197 | const char *reg_name) |
| 198 | { |
| 199 | int err; |
| 200 | |
| 201 | nw64(reg, bits); |
| 202 | err = __niu_wait_bits_clear(np, reg, bits, limit, delay); |
| 203 | if (err) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 204 | netdev_err(np->dev, "bits (%llx) of register %s would not clear, val[%llx]\n", |
| 205 | (unsigned long long)bits, reg_name, |
| 206 | (unsigned long long)nr64(reg)); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 207 | return err; |
| 208 | } |
| 209 | |
| 210 | #define niu_set_and_wait_clear(NP, REG, BITS, LIMIT, DELAY, REG_NAME) \ |
| 211 | ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \ |
| 212 | __niu_set_and_wait_clear(NP, REG, BITS, LIMIT, DELAY, REG_NAME); \ |
| 213 | }) |
| 214 | |
| 215 | static void niu_ldg_rearm(struct niu *np, struct niu_ldg *lp, int on) |
| 216 | { |
| 217 | u64 val = (u64) lp->timer; |
| 218 | |
| 219 | if (on) |
| 220 | val |= LDG_IMGMT_ARM; |
| 221 | |
| 222 | nw64(LDG_IMGMT(lp->ldg_num), val); |
| 223 | } |
| 224 | |
| 225 | static int niu_ldn_irq_enable(struct niu *np, int ldn, int on) |
| 226 | { |
| 227 | unsigned long mask_reg, bits; |
| 228 | u64 val; |
| 229 | |
| 230 | if (ldn < 0 || ldn > LDN_MAX) |
| 231 | return -EINVAL; |
| 232 | |
| 233 | if (ldn < 64) { |
| 234 | mask_reg = LD_IM0(ldn); |
| 235 | bits = LD_IM0_MASK; |
| 236 | } else { |
| 237 | mask_reg = LD_IM1(ldn - 64); |
| 238 | bits = LD_IM1_MASK; |
| 239 | } |
| 240 | |
| 241 | val = nr64(mask_reg); |
| 242 | if (on) |
| 243 | val &= ~bits; |
| 244 | else |
| 245 | val |= bits; |
| 246 | nw64(mask_reg, val); |
| 247 | |
| 248 | return 0; |
| 249 | } |
| 250 | |
| 251 | static int niu_enable_ldn_in_ldg(struct niu *np, struct niu_ldg *lp, int on) |
| 252 | { |
| 253 | struct niu_parent *parent = np->parent; |
| 254 | int i; |
| 255 | |
| 256 | for (i = 0; i <= LDN_MAX; i++) { |
| 257 | int err; |
| 258 | |
| 259 | if (parent->ldg_map[i] != lp->ldg_num) |
| 260 | continue; |
| 261 | |
| 262 | err = niu_ldn_irq_enable(np, i, on); |
| 263 | if (err) |
| 264 | return err; |
| 265 | } |
| 266 | return 0; |
| 267 | } |
| 268 | |
| 269 | static int niu_enable_interrupts(struct niu *np, int on) |
| 270 | { |
| 271 | int i; |
| 272 | |
| 273 | for (i = 0; i < np->num_ldg; i++) { |
| 274 | struct niu_ldg *lp = &np->ldg[i]; |
| 275 | int err; |
| 276 | |
| 277 | err = niu_enable_ldn_in_ldg(np, lp, on); |
| 278 | if (err) |
| 279 | return err; |
| 280 | } |
| 281 | for (i = 0; i < np->num_ldg; i++) |
| 282 | niu_ldg_rearm(np, &np->ldg[i], on); |
| 283 | |
| 284 | return 0; |
| 285 | } |
| 286 | |
| 287 | static u32 phy_encode(u32 type, int port) |
| 288 | { |
| 289 | return (type << (port * 2)); |
| 290 | } |
| 291 | |
| 292 | static u32 phy_decode(u32 val, int port) |
| 293 | { |
| 294 | return (val >> (port * 2)) & PORT_TYPE_MASK; |
| 295 | } |
| 296 | |
| 297 | static int mdio_wait(struct niu *np) |
| 298 | { |
| 299 | int limit = 1000; |
| 300 | u64 val; |
| 301 | |
| 302 | while (--limit > 0) { |
| 303 | val = nr64(MIF_FRAME_OUTPUT); |
| 304 | if ((val >> MIF_FRAME_OUTPUT_TA_SHIFT) & 0x1) |
| 305 | return val & MIF_FRAME_OUTPUT_DATA; |
| 306 | |
| 307 | udelay(10); |
| 308 | } |
| 309 | |
| 310 | return -ENODEV; |
| 311 | } |
| 312 | |
| 313 | static int mdio_read(struct niu *np, int port, int dev, int reg) |
| 314 | { |
| 315 | int err; |
| 316 | |
| 317 | nw64(MIF_FRAME_OUTPUT, MDIO_ADDR_OP(port, dev, reg)); |
| 318 | err = mdio_wait(np); |
| 319 | if (err < 0) |
| 320 | return err; |
| 321 | |
| 322 | nw64(MIF_FRAME_OUTPUT, MDIO_READ_OP(port, dev)); |
| 323 | return mdio_wait(np); |
| 324 | } |
| 325 | |
| 326 | static int mdio_write(struct niu *np, int port, int dev, int reg, int data) |
| 327 | { |
| 328 | int err; |
| 329 | |
| 330 | nw64(MIF_FRAME_OUTPUT, MDIO_ADDR_OP(port, dev, reg)); |
| 331 | err = mdio_wait(np); |
| 332 | if (err < 0) |
| 333 | return err; |
| 334 | |
| 335 | nw64(MIF_FRAME_OUTPUT, MDIO_WRITE_OP(port, dev, data)); |
| 336 | err = mdio_wait(np); |
| 337 | if (err < 0) |
| 338 | return err; |
| 339 | |
| 340 | return 0; |
| 341 | } |
| 342 | |
| 343 | static int mii_read(struct niu *np, int port, int reg) |
| 344 | { |
| 345 | nw64(MIF_FRAME_OUTPUT, MII_READ_OP(port, reg)); |
| 346 | return mdio_wait(np); |
| 347 | } |
| 348 | |
| 349 | static int mii_write(struct niu *np, int port, int reg, int data) |
| 350 | { |
| 351 | int err; |
| 352 | |
| 353 | nw64(MIF_FRAME_OUTPUT, MII_WRITE_OP(port, reg, data)); |
| 354 | err = mdio_wait(np); |
| 355 | if (err < 0) |
| 356 | return err; |
| 357 | |
| 358 | return 0; |
| 359 | } |
| 360 | |
| 361 | static int esr2_set_tx_cfg(struct niu *np, unsigned long channel, u32 val) |
| 362 | { |
| 363 | int err; |
| 364 | |
| 365 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, |
| 366 | ESR2_TI_PLL_TX_CFG_L(channel), |
| 367 | val & 0xffff); |
| 368 | if (!err) |
| 369 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, |
| 370 | ESR2_TI_PLL_TX_CFG_H(channel), |
| 371 | val >> 16); |
| 372 | return err; |
| 373 | } |
| 374 | |
| 375 | static int esr2_set_rx_cfg(struct niu *np, unsigned long channel, u32 val) |
| 376 | { |
| 377 | int err; |
| 378 | |
| 379 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, |
| 380 | ESR2_TI_PLL_RX_CFG_L(channel), |
| 381 | val & 0xffff); |
| 382 | if (!err) |
| 383 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, |
| 384 | ESR2_TI_PLL_RX_CFG_H(channel), |
| 385 | val >> 16); |
| 386 | return err; |
| 387 | } |
| 388 | |
| 389 | /* Mode is always 10G fiber. */ |
Santwona Behera | e3e081e | 2008-11-14 14:44:08 -0800 | [diff] [blame] | 390 | static int serdes_init_niu_10g_fiber(struct niu *np) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 391 | { |
| 392 | struct niu_link_config *lp = &np->link_config; |
| 393 | u32 tx_cfg, rx_cfg; |
| 394 | unsigned long i; |
| 395 | |
| 396 | tx_cfg = (PLL_TX_CFG_ENTX | PLL_TX_CFG_SWING_1375MV); |
| 397 | rx_cfg = (PLL_RX_CFG_ENRX | PLL_RX_CFG_TERM_0P8VDDT | |
| 398 | PLL_RX_CFG_ALIGN_ENA | PLL_RX_CFG_LOS_LTHRESH | |
| 399 | PLL_RX_CFG_EQ_LP_ADAPTIVE); |
| 400 | |
| 401 | if (lp->loopback_mode == LOOPBACK_PHY) { |
| 402 | u16 test_cfg = PLL_TEST_CFG_LOOPBACK_CML_DIS; |
| 403 | |
| 404 | mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, |
| 405 | ESR2_TI_PLL_TEST_CFG_L, test_cfg); |
| 406 | |
| 407 | tx_cfg |= PLL_TX_CFG_ENTEST; |
| 408 | rx_cfg |= PLL_RX_CFG_ENTEST; |
| 409 | } |
| 410 | |
| 411 | /* Initialize all 4 lanes of the SERDES. */ |
| 412 | for (i = 0; i < 4; i++) { |
| 413 | int err = esr2_set_tx_cfg(np, i, tx_cfg); |
| 414 | if (err) |
| 415 | return err; |
| 416 | } |
| 417 | |
| 418 | for (i = 0; i < 4; i++) { |
| 419 | int err = esr2_set_rx_cfg(np, i, rx_cfg); |
| 420 | if (err) |
| 421 | return err; |
| 422 | } |
| 423 | |
| 424 | return 0; |
| 425 | } |
| 426 | |
Santwona Behera | e3e081e | 2008-11-14 14:44:08 -0800 | [diff] [blame] | 427 | static int serdes_init_niu_1g_serdes(struct niu *np) |
| 428 | { |
| 429 | struct niu_link_config *lp = &np->link_config; |
| 430 | u16 pll_cfg, pll_sts; |
| 431 | int max_retry = 100; |
Ingo Molnar | 51e0f05 | 2008-11-25 16:48:12 -0800 | [diff] [blame] | 432 | u64 uninitialized_var(sig), mask, val; |
Santwona Behera | e3e081e | 2008-11-14 14:44:08 -0800 | [diff] [blame] | 433 | u32 tx_cfg, rx_cfg; |
| 434 | unsigned long i; |
| 435 | int err; |
| 436 | |
| 437 | tx_cfg = (PLL_TX_CFG_ENTX | PLL_TX_CFG_SWING_1375MV | |
| 438 | PLL_TX_CFG_RATE_HALF); |
| 439 | rx_cfg = (PLL_RX_CFG_ENRX | PLL_RX_CFG_TERM_0P8VDDT | |
| 440 | PLL_RX_CFG_ALIGN_ENA | PLL_RX_CFG_LOS_LTHRESH | |
| 441 | PLL_RX_CFG_RATE_HALF); |
| 442 | |
| 443 | if (np->port == 0) |
| 444 | rx_cfg |= PLL_RX_CFG_EQ_LP_ADAPTIVE; |
| 445 | |
| 446 | if (lp->loopback_mode == LOOPBACK_PHY) { |
| 447 | u16 test_cfg = PLL_TEST_CFG_LOOPBACK_CML_DIS; |
| 448 | |
| 449 | mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, |
| 450 | ESR2_TI_PLL_TEST_CFG_L, test_cfg); |
| 451 | |
| 452 | tx_cfg |= PLL_TX_CFG_ENTEST; |
| 453 | rx_cfg |= PLL_RX_CFG_ENTEST; |
| 454 | } |
| 455 | |
| 456 | /* Initialize PLL for 1G */ |
| 457 | pll_cfg = (PLL_CFG_ENPLL | PLL_CFG_MPY_8X); |
| 458 | |
| 459 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, |
| 460 | ESR2_TI_PLL_CFG_L, pll_cfg); |
| 461 | if (err) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 462 | netdev_err(np->dev, "NIU Port %d %s() mdio write to ESR2_TI_PLL_CFG_L failed\n", |
| 463 | np->port, __func__); |
Santwona Behera | e3e081e | 2008-11-14 14:44:08 -0800 | [diff] [blame] | 464 | return err; |
| 465 | } |
| 466 | |
| 467 | pll_sts = PLL_CFG_ENPLL; |
| 468 | |
| 469 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, |
| 470 | ESR2_TI_PLL_STS_L, pll_sts); |
| 471 | if (err) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 472 | netdev_err(np->dev, "NIU Port %d %s() mdio write to ESR2_TI_PLL_STS_L failed\n", |
| 473 | np->port, __func__); |
Santwona Behera | e3e081e | 2008-11-14 14:44:08 -0800 | [diff] [blame] | 474 | return err; |
| 475 | } |
| 476 | |
| 477 | udelay(200); |
| 478 | |
| 479 | /* Initialize all 4 lanes of the SERDES. */ |
| 480 | for (i = 0; i < 4; i++) { |
| 481 | err = esr2_set_tx_cfg(np, i, tx_cfg); |
| 482 | if (err) |
| 483 | return err; |
| 484 | } |
| 485 | |
| 486 | for (i = 0; i < 4; i++) { |
| 487 | err = esr2_set_rx_cfg(np, i, rx_cfg); |
| 488 | if (err) |
| 489 | return err; |
| 490 | } |
| 491 | |
| 492 | switch (np->port) { |
| 493 | case 0: |
| 494 | val = (ESR_INT_SRDY0_P0 | ESR_INT_DET0_P0); |
| 495 | mask = val; |
| 496 | break; |
| 497 | |
| 498 | case 1: |
| 499 | val = (ESR_INT_SRDY0_P1 | ESR_INT_DET0_P1); |
| 500 | mask = val; |
| 501 | break; |
| 502 | |
| 503 | default: |
| 504 | return -EINVAL; |
| 505 | } |
| 506 | |
| 507 | while (max_retry--) { |
| 508 | sig = nr64(ESR_INT_SIGNALS); |
| 509 | if ((sig & mask) == val) |
| 510 | break; |
| 511 | |
| 512 | mdelay(500); |
| 513 | } |
| 514 | |
| 515 | if ((sig & mask) != val) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 516 | netdev_err(np->dev, "Port %u signal bits [%08x] are not [%08x]\n", |
| 517 | np->port, (int)(sig & mask), (int)val); |
Santwona Behera | e3e081e | 2008-11-14 14:44:08 -0800 | [diff] [blame] | 518 | return -ENODEV; |
| 519 | } |
| 520 | |
| 521 | return 0; |
| 522 | } |
| 523 | |
| 524 | static int serdes_init_niu_10g_serdes(struct niu *np) |
| 525 | { |
| 526 | struct niu_link_config *lp = &np->link_config; |
| 527 | u32 tx_cfg, rx_cfg, pll_cfg, pll_sts; |
| 528 | int max_retry = 100; |
Ingo Molnar | 51e0f05 | 2008-11-25 16:48:12 -0800 | [diff] [blame] | 529 | u64 uninitialized_var(sig), mask, val; |
Santwona Behera | e3e081e | 2008-11-14 14:44:08 -0800 | [diff] [blame] | 530 | unsigned long i; |
| 531 | int err; |
| 532 | |
| 533 | tx_cfg = (PLL_TX_CFG_ENTX | PLL_TX_CFG_SWING_1375MV); |
| 534 | rx_cfg = (PLL_RX_CFG_ENRX | PLL_RX_CFG_TERM_0P8VDDT | |
| 535 | PLL_RX_CFG_ALIGN_ENA | PLL_RX_CFG_LOS_LTHRESH | |
| 536 | PLL_RX_CFG_EQ_LP_ADAPTIVE); |
| 537 | |
| 538 | if (lp->loopback_mode == LOOPBACK_PHY) { |
| 539 | u16 test_cfg = PLL_TEST_CFG_LOOPBACK_CML_DIS; |
| 540 | |
| 541 | mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, |
| 542 | ESR2_TI_PLL_TEST_CFG_L, test_cfg); |
| 543 | |
| 544 | tx_cfg |= PLL_TX_CFG_ENTEST; |
| 545 | rx_cfg |= PLL_RX_CFG_ENTEST; |
| 546 | } |
| 547 | |
| 548 | /* Initialize PLL for 10G */ |
| 549 | pll_cfg = (PLL_CFG_ENPLL | PLL_CFG_MPY_10X); |
| 550 | |
| 551 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, |
| 552 | ESR2_TI_PLL_CFG_L, pll_cfg & 0xffff); |
| 553 | if (err) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 554 | netdev_err(np->dev, "NIU Port %d %s() mdio write to ESR2_TI_PLL_CFG_L failed\n", |
| 555 | np->port, __func__); |
Santwona Behera | e3e081e | 2008-11-14 14:44:08 -0800 | [diff] [blame] | 556 | return err; |
| 557 | } |
| 558 | |
| 559 | pll_sts = PLL_CFG_ENPLL; |
| 560 | |
| 561 | err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR, |
| 562 | ESR2_TI_PLL_STS_L, pll_sts & 0xffff); |
| 563 | if (err) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 564 | netdev_err(np->dev, "NIU Port %d %s() mdio write to ESR2_TI_PLL_STS_L failed\n", |
| 565 | np->port, __func__); |
Santwona Behera | e3e081e | 2008-11-14 14:44:08 -0800 | [diff] [blame] | 566 | return err; |
| 567 | } |
| 568 | |
| 569 | udelay(200); |
| 570 | |
| 571 | /* Initialize all 4 lanes of the SERDES. */ |
| 572 | for (i = 0; i < 4; i++) { |
| 573 | err = esr2_set_tx_cfg(np, i, tx_cfg); |
| 574 | if (err) |
| 575 | return err; |
| 576 | } |
| 577 | |
| 578 | for (i = 0; i < 4; i++) { |
| 579 | err = esr2_set_rx_cfg(np, i, rx_cfg); |
| 580 | if (err) |
| 581 | return err; |
| 582 | } |
| 583 | |
| 584 | /* check if serdes is ready */ |
| 585 | |
| 586 | switch (np->port) { |
| 587 | case 0: |
| 588 | mask = ESR_INT_SIGNALS_P0_BITS; |
| 589 | val = (ESR_INT_SRDY0_P0 | |
| 590 | ESR_INT_DET0_P0 | |
| 591 | ESR_INT_XSRDY_P0 | |
| 592 | ESR_INT_XDP_P0_CH3 | |
| 593 | ESR_INT_XDP_P0_CH2 | |
| 594 | ESR_INT_XDP_P0_CH1 | |
| 595 | ESR_INT_XDP_P0_CH0); |
| 596 | break; |
| 597 | |
| 598 | case 1: |
| 599 | mask = ESR_INT_SIGNALS_P1_BITS; |
| 600 | val = (ESR_INT_SRDY0_P1 | |
| 601 | ESR_INT_DET0_P1 | |
| 602 | ESR_INT_XSRDY_P1 | |
| 603 | ESR_INT_XDP_P1_CH3 | |
| 604 | ESR_INT_XDP_P1_CH2 | |
| 605 | ESR_INT_XDP_P1_CH1 | |
| 606 | ESR_INT_XDP_P1_CH0); |
| 607 | break; |
| 608 | |
| 609 | default: |
| 610 | return -EINVAL; |
| 611 | } |
| 612 | |
| 613 | while (max_retry--) { |
| 614 | sig = nr64(ESR_INT_SIGNALS); |
| 615 | if ((sig & mask) == val) |
| 616 | break; |
| 617 | |
| 618 | mdelay(500); |
| 619 | } |
| 620 | |
| 621 | if ((sig & mask) != val) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 622 | pr_info("NIU Port %u signal bits [%08x] are not [%08x] for 10G...trying 1G\n", |
| 623 | np->port, (int)(sig & mask), (int)val); |
Santwona Behera | e3e081e | 2008-11-14 14:44:08 -0800 | [diff] [blame] | 624 | |
| 625 | /* 10G failed, try initializing at 1G */ |
| 626 | err = serdes_init_niu_1g_serdes(np); |
| 627 | if (!err) { |
| 628 | np->flags &= ~NIU_FLAGS_10G; |
| 629 | np->mac_xcvr = MAC_XCVR_PCS; |
| 630 | } else { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 631 | netdev_err(np->dev, "Port %u 10G/1G SERDES Link Failed\n", |
| 632 | np->port); |
Santwona Behera | e3e081e | 2008-11-14 14:44:08 -0800 | [diff] [blame] | 633 | return -ENODEV; |
| 634 | } |
| 635 | } |
| 636 | return 0; |
| 637 | } |
| 638 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 639 | static int esr_read_rxtx_ctrl(struct niu *np, unsigned long chan, u32 *val) |
| 640 | { |
| 641 | int err; |
| 642 | |
| 643 | err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, ESR_RXTX_CTRL_L(chan)); |
| 644 | if (err >= 0) { |
| 645 | *val = (err & 0xffff); |
| 646 | err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, |
| 647 | ESR_RXTX_CTRL_H(chan)); |
| 648 | if (err >= 0) |
| 649 | *val |= ((err & 0xffff) << 16); |
| 650 | err = 0; |
| 651 | } |
| 652 | return err; |
| 653 | } |
| 654 | |
| 655 | static int esr_read_glue0(struct niu *np, unsigned long chan, u32 *val) |
| 656 | { |
| 657 | int err; |
| 658 | |
| 659 | err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, |
| 660 | ESR_GLUE_CTRL0_L(chan)); |
| 661 | if (err >= 0) { |
| 662 | *val = (err & 0xffff); |
| 663 | err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, |
| 664 | ESR_GLUE_CTRL0_H(chan)); |
| 665 | if (err >= 0) { |
| 666 | *val |= ((err & 0xffff) << 16); |
| 667 | err = 0; |
| 668 | } |
| 669 | } |
| 670 | return err; |
| 671 | } |
| 672 | |
| 673 | static int esr_read_reset(struct niu *np, u32 *val) |
| 674 | { |
| 675 | int err; |
| 676 | |
| 677 | err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, |
| 678 | ESR_RXTX_RESET_CTRL_L); |
| 679 | if (err >= 0) { |
| 680 | *val = (err & 0xffff); |
| 681 | err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, |
| 682 | ESR_RXTX_RESET_CTRL_H); |
| 683 | if (err >= 0) { |
| 684 | *val |= ((err & 0xffff) << 16); |
| 685 | err = 0; |
| 686 | } |
| 687 | } |
| 688 | return err; |
| 689 | } |
| 690 | |
| 691 | static int esr_write_rxtx_ctrl(struct niu *np, unsigned long chan, u32 val) |
| 692 | { |
| 693 | int err; |
| 694 | |
| 695 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, |
| 696 | ESR_RXTX_CTRL_L(chan), val & 0xffff); |
| 697 | if (!err) |
| 698 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, |
| 699 | ESR_RXTX_CTRL_H(chan), (val >> 16)); |
| 700 | return err; |
| 701 | } |
| 702 | |
| 703 | static int esr_write_glue0(struct niu *np, unsigned long chan, u32 val) |
| 704 | { |
| 705 | int err; |
| 706 | |
| 707 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, |
| 708 | ESR_GLUE_CTRL0_L(chan), val & 0xffff); |
| 709 | if (!err) |
| 710 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, |
| 711 | ESR_GLUE_CTRL0_H(chan), (val >> 16)); |
| 712 | return err; |
| 713 | } |
| 714 | |
| 715 | static int esr_reset(struct niu *np) |
| 716 | { |
Ingo Molnar | f166400 | 2008-11-25 16:48:42 -0800 | [diff] [blame] | 717 | u32 uninitialized_var(reset); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 718 | int err; |
| 719 | |
| 720 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, |
| 721 | ESR_RXTX_RESET_CTRL_L, 0x0000); |
| 722 | if (err) |
| 723 | return err; |
| 724 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, |
| 725 | ESR_RXTX_RESET_CTRL_H, 0xffff); |
| 726 | if (err) |
| 727 | return err; |
| 728 | udelay(200); |
| 729 | |
| 730 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, |
| 731 | ESR_RXTX_RESET_CTRL_L, 0xffff); |
| 732 | if (err) |
| 733 | return err; |
| 734 | udelay(200); |
| 735 | |
| 736 | err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR, |
| 737 | ESR_RXTX_RESET_CTRL_H, 0x0000); |
| 738 | if (err) |
| 739 | return err; |
| 740 | udelay(200); |
| 741 | |
| 742 | err = esr_read_reset(np, &reset); |
| 743 | if (err) |
| 744 | return err; |
| 745 | if (reset != 0) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 746 | netdev_err(np->dev, "Port %u ESR_RESET did not clear [%08x]\n", |
| 747 | np->port, reset); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 748 | return -ENODEV; |
| 749 | } |
| 750 | |
| 751 | return 0; |
| 752 | } |
| 753 | |
| 754 | static int serdes_init_10g(struct niu *np) |
| 755 | { |
| 756 | struct niu_link_config *lp = &np->link_config; |
| 757 | unsigned long ctrl_reg, test_cfg_reg, i; |
| 758 | u64 ctrl_val, test_cfg_val, sig, mask, val; |
| 759 | int err; |
| 760 | |
| 761 | switch (np->port) { |
| 762 | case 0: |
| 763 | ctrl_reg = ENET_SERDES_0_CTRL_CFG; |
| 764 | test_cfg_reg = ENET_SERDES_0_TEST_CFG; |
| 765 | break; |
| 766 | case 1: |
| 767 | ctrl_reg = ENET_SERDES_1_CTRL_CFG; |
| 768 | test_cfg_reg = ENET_SERDES_1_TEST_CFG; |
| 769 | break; |
| 770 | |
| 771 | default: |
| 772 | return -EINVAL; |
| 773 | } |
| 774 | ctrl_val = (ENET_SERDES_CTRL_SDET_0 | |
| 775 | ENET_SERDES_CTRL_SDET_1 | |
| 776 | ENET_SERDES_CTRL_SDET_2 | |
| 777 | ENET_SERDES_CTRL_SDET_3 | |
| 778 | (0x5 << ENET_SERDES_CTRL_EMPH_0_SHIFT) | |
| 779 | (0x5 << ENET_SERDES_CTRL_EMPH_1_SHIFT) | |
| 780 | (0x5 << ENET_SERDES_CTRL_EMPH_2_SHIFT) | |
| 781 | (0x5 << ENET_SERDES_CTRL_EMPH_3_SHIFT) | |
| 782 | (0x1 << ENET_SERDES_CTRL_LADJ_0_SHIFT) | |
| 783 | (0x1 << ENET_SERDES_CTRL_LADJ_1_SHIFT) | |
| 784 | (0x1 << ENET_SERDES_CTRL_LADJ_2_SHIFT) | |
| 785 | (0x1 << ENET_SERDES_CTRL_LADJ_3_SHIFT)); |
| 786 | test_cfg_val = 0; |
| 787 | |
| 788 | if (lp->loopback_mode == LOOPBACK_PHY) { |
| 789 | test_cfg_val |= ((ENET_TEST_MD_PAD_LOOPBACK << |
| 790 | ENET_SERDES_TEST_MD_0_SHIFT) | |
| 791 | (ENET_TEST_MD_PAD_LOOPBACK << |
| 792 | ENET_SERDES_TEST_MD_1_SHIFT) | |
| 793 | (ENET_TEST_MD_PAD_LOOPBACK << |
| 794 | ENET_SERDES_TEST_MD_2_SHIFT) | |
| 795 | (ENET_TEST_MD_PAD_LOOPBACK << |
| 796 | ENET_SERDES_TEST_MD_3_SHIFT)); |
| 797 | } |
| 798 | |
| 799 | nw64(ctrl_reg, ctrl_val); |
| 800 | nw64(test_cfg_reg, test_cfg_val); |
| 801 | |
| 802 | /* Initialize all 4 lanes of the SERDES. */ |
| 803 | for (i = 0; i < 4; i++) { |
| 804 | u32 rxtx_ctrl, glue0; |
| 805 | |
| 806 | err = esr_read_rxtx_ctrl(np, i, &rxtx_ctrl); |
| 807 | if (err) |
| 808 | return err; |
| 809 | err = esr_read_glue0(np, i, &glue0); |
| 810 | if (err) |
| 811 | return err; |
| 812 | |
| 813 | rxtx_ctrl &= ~(ESR_RXTX_CTRL_VMUXLO); |
| 814 | rxtx_ctrl |= (ESR_RXTX_CTRL_ENSTRETCH | |
| 815 | (2 << ESR_RXTX_CTRL_VMUXLO_SHIFT)); |
| 816 | |
| 817 | glue0 &= ~(ESR_GLUE_CTRL0_SRATE | |
| 818 | ESR_GLUE_CTRL0_THCNT | |
| 819 | ESR_GLUE_CTRL0_BLTIME); |
| 820 | glue0 |= (ESR_GLUE_CTRL0_RXLOSENAB | |
| 821 | (0xf << ESR_GLUE_CTRL0_SRATE_SHIFT) | |
| 822 | (0xff << ESR_GLUE_CTRL0_THCNT_SHIFT) | |
| 823 | (BLTIME_300_CYCLES << |
| 824 | ESR_GLUE_CTRL0_BLTIME_SHIFT)); |
| 825 | |
| 826 | err = esr_write_rxtx_ctrl(np, i, rxtx_ctrl); |
| 827 | if (err) |
| 828 | return err; |
| 829 | err = esr_write_glue0(np, i, glue0); |
| 830 | if (err) |
| 831 | return err; |
| 832 | } |
| 833 | |
| 834 | err = esr_reset(np); |
| 835 | if (err) |
| 836 | return err; |
| 837 | |
| 838 | sig = nr64(ESR_INT_SIGNALS); |
| 839 | switch (np->port) { |
| 840 | case 0: |
| 841 | mask = ESR_INT_SIGNALS_P0_BITS; |
| 842 | val = (ESR_INT_SRDY0_P0 | |
| 843 | ESR_INT_DET0_P0 | |
| 844 | ESR_INT_XSRDY_P0 | |
| 845 | ESR_INT_XDP_P0_CH3 | |
| 846 | ESR_INT_XDP_P0_CH2 | |
| 847 | ESR_INT_XDP_P0_CH1 | |
| 848 | ESR_INT_XDP_P0_CH0); |
| 849 | break; |
| 850 | |
| 851 | case 1: |
| 852 | mask = ESR_INT_SIGNALS_P1_BITS; |
| 853 | val = (ESR_INT_SRDY0_P1 | |
| 854 | ESR_INT_DET0_P1 | |
| 855 | ESR_INT_XSRDY_P1 | |
| 856 | ESR_INT_XDP_P1_CH3 | |
| 857 | ESR_INT_XDP_P1_CH2 | |
| 858 | ESR_INT_XDP_P1_CH1 | |
| 859 | ESR_INT_XDP_P1_CH0); |
| 860 | break; |
| 861 | |
| 862 | default: |
| 863 | return -EINVAL; |
| 864 | } |
| 865 | |
| 866 | if ((sig & mask) != val) { |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 867 | if (np->flags & NIU_FLAGS_HOTPLUG_PHY) { |
| 868 | np->flags &= ~NIU_FLAGS_HOTPLUG_PHY_PRESENT; |
| 869 | return 0; |
| 870 | } |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 871 | netdev_err(np->dev, "Port %u signal bits [%08x] are not [%08x]\n", |
| 872 | np->port, (int)(sig & mask), (int)val); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 873 | return -ENODEV; |
| 874 | } |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 875 | if (np->flags & NIU_FLAGS_HOTPLUG_PHY) |
| 876 | np->flags |= NIU_FLAGS_HOTPLUG_PHY_PRESENT; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 877 | return 0; |
| 878 | } |
| 879 | |
| 880 | static int serdes_init_1g(struct niu *np) |
| 881 | { |
| 882 | u64 val; |
| 883 | |
| 884 | val = nr64(ENET_SERDES_1_PLL_CFG); |
| 885 | val &= ~ENET_SERDES_PLL_FBDIV2; |
| 886 | switch (np->port) { |
| 887 | case 0: |
| 888 | val |= ENET_SERDES_PLL_HRATE0; |
| 889 | break; |
| 890 | case 1: |
| 891 | val |= ENET_SERDES_PLL_HRATE1; |
| 892 | break; |
| 893 | case 2: |
| 894 | val |= ENET_SERDES_PLL_HRATE2; |
| 895 | break; |
| 896 | case 3: |
| 897 | val |= ENET_SERDES_PLL_HRATE3; |
| 898 | break; |
| 899 | default: |
| 900 | return -EINVAL; |
| 901 | } |
| 902 | nw64(ENET_SERDES_1_PLL_CFG, val); |
| 903 | |
| 904 | return 0; |
| 905 | } |
| 906 | |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 907 | static int serdes_init_1g_serdes(struct niu *np) |
| 908 | { |
| 909 | struct niu_link_config *lp = &np->link_config; |
| 910 | unsigned long ctrl_reg, test_cfg_reg, pll_cfg, i; |
| 911 | u64 ctrl_val, test_cfg_val, sig, mask, val; |
| 912 | int err; |
| 913 | u64 reset_val, val_rd; |
| 914 | |
| 915 | val = ENET_SERDES_PLL_HRATE0 | ENET_SERDES_PLL_HRATE1 | |
| 916 | ENET_SERDES_PLL_HRATE2 | ENET_SERDES_PLL_HRATE3 | |
| 917 | ENET_SERDES_PLL_FBDIV0; |
| 918 | switch (np->port) { |
| 919 | case 0: |
| 920 | reset_val = ENET_SERDES_RESET_0; |
| 921 | ctrl_reg = ENET_SERDES_0_CTRL_CFG; |
| 922 | test_cfg_reg = ENET_SERDES_0_TEST_CFG; |
| 923 | pll_cfg = ENET_SERDES_0_PLL_CFG; |
| 924 | break; |
| 925 | case 1: |
| 926 | reset_val = ENET_SERDES_RESET_1; |
| 927 | ctrl_reg = ENET_SERDES_1_CTRL_CFG; |
| 928 | test_cfg_reg = ENET_SERDES_1_TEST_CFG; |
| 929 | pll_cfg = ENET_SERDES_1_PLL_CFG; |
| 930 | break; |
| 931 | |
| 932 | default: |
| 933 | return -EINVAL; |
| 934 | } |
| 935 | ctrl_val = (ENET_SERDES_CTRL_SDET_0 | |
| 936 | ENET_SERDES_CTRL_SDET_1 | |
| 937 | ENET_SERDES_CTRL_SDET_2 | |
| 938 | ENET_SERDES_CTRL_SDET_3 | |
| 939 | (0x5 << ENET_SERDES_CTRL_EMPH_0_SHIFT) | |
| 940 | (0x5 << ENET_SERDES_CTRL_EMPH_1_SHIFT) | |
| 941 | (0x5 << ENET_SERDES_CTRL_EMPH_2_SHIFT) | |
| 942 | (0x5 << ENET_SERDES_CTRL_EMPH_3_SHIFT) | |
| 943 | (0x1 << ENET_SERDES_CTRL_LADJ_0_SHIFT) | |
| 944 | (0x1 << ENET_SERDES_CTRL_LADJ_1_SHIFT) | |
| 945 | (0x1 << ENET_SERDES_CTRL_LADJ_2_SHIFT) | |
| 946 | (0x1 << ENET_SERDES_CTRL_LADJ_3_SHIFT)); |
| 947 | test_cfg_val = 0; |
| 948 | |
| 949 | if (lp->loopback_mode == LOOPBACK_PHY) { |
| 950 | test_cfg_val |= ((ENET_TEST_MD_PAD_LOOPBACK << |
| 951 | ENET_SERDES_TEST_MD_0_SHIFT) | |
| 952 | (ENET_TEST_MD_PAD_LOOPBACK << |
| 953 | ENET_SERDES_TEST_MD_1_SHIFT) | |
| 954 | (ENET_TEST_MD_PAD_LOOPBACK << |
| 955 | ENET_SERDES_TEST_MD_2_SHIFT) | |
| 956 | (ENET_TEST_MD_PAD_LOOPBACK << |
| 957 | ENET_SERDES_TEST_MD_3_SHIFT)); |
| 958 | } |
| 959 | |
| 960 | nw64(ENET_SERDES_RESET, reset_val); |
| 961 | mdelay(20); |
| 962 | val_rd = nr64(ENET_SERDES_RESET); |
| 963 | val_rd &= ~reset_val; |
| 964 | nw64(pll_cfg, val); |
| 965 | nw64(ctrl_reg, ctrl_val); |
| 966 | nw64(test_cfg_reg, test_cfg_val); |
| 967 | nw64(ENET_SERDES_RESET, val_rd); |
| 968 | mdelay(2000); |
| 969 | |
| 970 | /* Initialize all 4 lanes of the SERDES. */ |
| 971 | for (i = 0; i < 4; i++) { |
| 972 | u32 rxtx_ctrl, glue0; |
| 973 | |
| 974 | err = esr_read_rxtx_ctrl(np, i, &rxtx_ctrl); |
| 975 | if (err) |
| 976 | return err; |
| 977 | err = esr_read_glue0(np, i, &glue0); |
| 978 | if (err) |
| 979 | return err; |
| 980 | |
| 981 | rxtx_ctrl &= ~(ESR_RXTX_CTRL_VMUXLO); |
| 982 | rxtx_ctrl |= (ESR_RXTX_CTRL_ENSTRETCH | |
| 983 | (2 << ESR_RXTX_CTRL_VMUXLO_SHIFT)); |
| 984 | |
| 985 | glue0 &= ~(ESR_GLUE_CTRL0_SRATE | |
| 986 | ESR_GLUE_CTRL0_THCNT | |
| 987 | ESR_GLUE_CTRL0_BLTIME); |
| 988 | glue0 |= (ESR_GLUE_CTRL0_RXLOSENAB | |
| 989 | (0xf << ESR_GLUE_CTRL0_SRATE_SHIFT) | |
| 990 | (0xff << ESR_GLUE_CTRL0_THCNT_SHIFT) | |
| 991 | (BLTIME_300_CYCLES << |
| 992 | ESR_GLUE_CTRL0_BLTIME_SHIFT)); |
| 993 | |
| 994 | err = esr_write_rxtx_ctrl(np, i, rxtx_ctrl); |
| 995 | if (err) |
| 996 | return err; |
| 997 | err = esr_write_glue0(np, i, glue0); |
| 998 | if (err) |
| 999 | return err; |
| 1000 | } |
| 1001 | |
| 1002 | |
| 1003 | sig = nr64(ESR_INT_SIGNALS); |
| 1004 | switch (np->port) { |
| 1005 | case 0: |
| 1006 | val = (ESR_INT_SRDY0_P0 | ESR_INT_DET0_P0); |
| 1007 | mask = val; |
| 1008 | break; |
| 1009 | |
| 1010 | case 1: |
| 1011 | val = (ESR_INT_SRDY0_P1 | ESR_INT_DET0_P1); |
| 1012 | mask = val; |
| 1013 | break; |
| 1014 | |
| 1015 | default: |
| 1016 | return -EINVAL; |
| 1017 | } |
| 1018 | |
| 1019 | if ((sig & mask) != val) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 1020 | netdev_err(np->dev, "Port %u signal bits [%08x] are not [%08x]\n", |
| 1021 | np->port, (int)(sig & mask), (int)val); |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 1022 | return -ENODEV; |
| 1023 | } |
| 1024 | |
| 1025 | return 0; |
| 1026 | } |
| 1027 | |
| 1028 | static int link_status_1g_serdes(struct niu *np, int *link_up_p) |
| 1029 | { |
| 1030 | struct niu_link_config *lp = &np->link_config; |
| 1031 | int link_up; |
| 1032 | u64 val; |
| 1033 | u16 current_speed; |
| 1034 | unsigned long flags; |
| 1035 | u8 current_duplex; |
| 1036 | |
| 1037 | link_up = 0; |
| 1038 | current_speed = SPEED_INVALID; |
| 1039 | current_duplex = DUPLEX_INVALID; |
| 1040 | |
| 1041 | spin_lock_irqsave(&np->lock, flags); |
| 1042 | |
| 1043 | val = nr64_pcs(PCS_MII_STAT); |
| 1044 | |
| 1045 | if (val & PCS_MII_STAT_LINK_STATUS) { |
| 1046 | link_up = 1; |
| 1047 | current_speed = SPEED_1000; |
| 1048 | current_duplex = DUPLEX_FULL; |
| 1049 | } |
| 1050 | |
| 1051 | lp->active_speed = current_speed; |
| 1052 | lp->active_duplex = current_duplex; |
| 1053 | spin_unlock_irqrestore(&np->lock, flags); |
| 1054 | |
| 1055 | *link_up_p = link_up; |
| 1056 | return 0; |
| 1057 | } |
| 1058 | |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 1059 | static int link_status_10g_serdes(struct niu *np, int *link_up_p) |
| 1060 | { |
| 1061 | unsigned long flags; |
| 1062 | struct niu_link_config *lp = &np->link_config; |
| 1063 | int link_up = 0; |
| 1064 | int link_ok = 1; |
| 1065 | u64 val, val2; |
| 1066 | u16 current_speed; |
| 1067 | u8 current_duplex; |
| 1068 | |
| 1069 | if (!(np->flags & NIU_FLAGS_10G)) |
| 1070 | return link_status_1g_serdes(np, link_up_p); |
| 1071 | |
| 1072 | current_speed = SPEED_INVALID; |
| 1073 | current_duplex = DUPLEX_INVALID; |
| 1074 | spin_lock_irqsave(&np->lock, flags); |
| 1075 | |
| 1076 | val = nr64_xpcs(XPCS_STATUS(0)); |
| 1077 | val2 = nr64_mac(XMAC_INTER2); |
| 1078 | if (val2 & 0x01000000) |
| 1079 | link_ok = 0; |
| 1080 | |
| 1081 | if ((val & 0x1000ULL) && link_ok) { |
| 1082 | link_up = 1; |
| 1083 | current_speed = SPEED_10000; |
| 1084 | current_duplex = DUPLEX_FULL; |
| 1085 | } |
| 1086 | lp->active_speed = current_speed; |
| 1087 | lp->active_duplex = current_duplex; |
| 1088 | spin_unlock_irqrestore(&np->lock, flags); |
| 1089 | *link_up_p = link_up; |
| 1090 | return 0; |
| 1091 | } |
| 1092 | |
Constantin Baranov | 38bb045d | 2009-02-18 17:53:20 -0800 | [diff] [blame] | 1093 | static int link_status_mii(struct niu *np, int *link_up_p) |
| 1094 | { |
| 1095 | struct niu_link_config *lp = &np->link_config; |
| 1096 | int err; |
| 1097 | int bmsr, advert, ctrl1000, stat1000, lpa, bmcr, estatus; |
| 1098 | int supported, advertising, active_speed, active_duplex; |
| 1099 | |
| 1100 | err = mii_read(np, np->phy_addr, MII_BMCR); |
| 1101 | if (unlikely(err < 0)) |
| 1102 | return err; |
| 1103 | bmcr = err; |
| 1104 | |
| 1105 | err = mii_read(np, np->phy_addr, MII_BMSR); |
| 1106 | if (unlikely(err < 0)) |
| 1107 | return err; |
| 1108 | bmsr = err; |
| 1109 | |
| 1110 | err = mii_read(np, np->phy_addr, MII_ADVERTISE); |
| 1111 | if (unlikely(err < 0)) |
| 1112 | return err; |
| 1113 | advert = err; |
| 1114 | |
| 1115 | err = mii_read(np, np->phy_addr, MII_LPA); |
| 1116 | if (unlikely(err < 0)) |
| 1117 | return err; |
| 1118 | lpa = err; |
| 1119 | |
| 1120 | if (likely(bmsr & BMSR_ESTATEN)) { |
| 1121 | err = mii_read(np, np->phy_addr, MII_ESTATUS); |
| 1122 | if (unlikely(err < 0)) |
| 1123 | return err; |
| 1124 | estatus = err; |
| 1125 | |
| 1126 | err = mii_read(np, np->phy_addr, MII_CTRL1000); |
| 1127 | if (unlikely(err < 0)) |
| 1128 | return err; |
| 1129 | ctrl1000 = err; |
| 1130 | |
| 1131 | err = mii_read(np, np->phy_addr, MII_STAT1000); |
| 1132 | if (unlikely(err < 0)) |
| 1133 | return err; |
| 1134 | stat1000 = err; |
| 1135 | } else |
| 1136 | estatus = ctrl1000 = stat1000 = 0; |
| 1137 | |
| 1138 | supported = 0; |
| 1139 | if (bmsr & BMSR_ANEGCAPABLE) |
| 1140 | supported |= SUPPORTED_Autoneg; |
| 1141 | if (bmsr & BMSR_10HALF) |
| 1142 | supported |= SUPPORTED_10baseT_Half; |
| 1143 | if (bmsr & BMSR_10FULL) |
| 1144 | supported |= SUPPORTED_10baseT_Full; |
| 1145 | if (bmsr & BMSR_100HALF) |
| 1146 | supported |= SUPPORTED_100baseT_Half; |
| 1147 | if (bmsr & BMSR_100FULL) |
| 1148 | supported |= SUPPORTED_100baseT_Full; |
| 1149 | if (estatus & ESTATUS_1000_THALF) |
| 1150 | supported |= SUPPORTED_1000baseT_Half; |
| 1151 | if (estatus & ESTATUS_1000_TFULL) |
| 1152 | supported |= SUPPORTED_1000baseT_Full; |
| 1153 | lp->supported = supported; |
| 1154 | |
| 1155 | advertising = 0; |
| 1156 | if (advert & ADVERTISE_10HALF) |
| 1157 | advertising |= ADVERTISED_10baseT_Half; |
| 1158 | if (advert & ADVERTISE_10FULL) |
| 1159 | advertising |= ADVERTISED_10baseT_Full; |
| 1160 | if (advert & ADVERTISE_100HALF) |
| 1161 | advertising |= ADVERTISED_100baseT_Half; |
| 1162 | if (advert & ADVERTISE_100FULL) |
| 1163 | advertising |= ADVERTISED_100baseT_Full; |
| 1164 | if (ctrl1000 & ADVERTISE_1000HALF) |
| 1165 | advertising |= ADVERTISED_1000baseT_Half; |
| 1166 | if (ctrl1000 & ADVERTISE_1000FULL) |
| 1167 | advertising |= ADVERTISED_1000baseT_Full; |
| 1168 | |
| 1169 | if (bmcr & BMCR_ANENABLE) { |
| 1170 | int neg, neg1000; |
| 1171 | |
| 1172 | lp->active_autoneg = 1; |
| 1173 | advertising |= ADVERTISED_Autoneg; |
| 1174 | |
| 1175 | neg = advert & lpa; |
| 1176 | neg1000 = (ctrl1000 << 2) & stat1000; |
| 1177 | |
| 1178 | if (neg1000 & (LPA_1000FULL | LPA_1000HALF)) |
| 1179 | active_speed = SPEED_1000; |
| 1180 | else if (neg & LPA_100) |
| 1181 | active_speed = SPEED_100; |
| 1182 | else if (neg & (LPA_10HALF | LPA_10FULL)) |
| 1183 | active_speed = SPEED_10; |
| 1184 | else |
| 1185 | active_speed = SPEED_INVALID; |
| 1186 | |
| 1187 | if ((neg1000 & LPA_1000FULL) || (neg & LPA_DUPLEX)) |
| 1188 | active_duplex = DUPLEX_FULL; |
| 1189 | else if (active_speed != SPEED_INVALID) |
| 1190 | active_duplex = DUPLEX_HALF; |
| 1191 | else |
| 1192 | active_duplex = DUPLEX_INVALID; |
| 1193 | } else { |
| 1194 | lp->active_autoneg = 0; |
| 1195 | |
| 1196 | if ((bmcr & BMCR_SPEED1000) && !(bmcr & BMCR_SPEED100)) |
| 1197 | active_speed = SPEED_1000; |
| 1198 | else if (bmcr & BMCR_SPEED100) |
| 1199 | active_speed = SPEED_100; |
| 1200 | else |
| 1201 | active_speed = SPEED_10; |
| 1202 | |
| 1203 | if (bmcr & BMCR_FULLDPLX) |
| 1204 | active_duplex = DUPLEX_FULL; |
| 1205 | else |
| 1206 | active_duplex = DUPLEX_HALF; |
| 1207 | } |
| 1208 | |
| 1209 | lp->active_advertising = advertising; |
| 1210 | lp->active_speed = active_speed; |
| 1211 | lp->active_duplex = active_duplex; |
| 1212 | *link_up_p = !!(bmsr & BMSR_LSTATUS); |
| 1213 | |
| 1214 | return 0; |
| 1215 | } |
| 1216 | |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 1217 | static int link_status_1g_rgmii(struct niu *np, int *link_up_p) |
| 1218 | { |
| 1219 | struct niu_link_config *lp = &np->link_config; |
| 1220 | u16 current_speed, bmsr; |
| 1221 | unsigned long flags; |
| 1222 | u8 current_duplex; |
| 1223 | int err, link_up; |
| 1224 | |
| 1225 | link_up = 0; |
| 1226 | current_speed = SPEED_INVALID; |
| 1227 | current_duplex = DUPLEX_INVALID; |
| 1228 | |
| 1229 | spin_lock_irqsave(&np->lock, flags); |
| 1230 | |
| 1231 | err = -EINVAL; |
| 1232 | |
| 1233 | err = mii_read(np, np->phy_addr, MII_BMSR); |
| 1234 | if (err < 0) |
| 1235 | goto out; |
| 1236 | |
| 1237 | bmsr = err; |
| 1238 | if (bmsr & BMSR_LSTATUS) { |
| 1239 | u16 adv, lpa, common, estat; |
| 1240 | |
| 1241 | err = mii_read(np, np->phy_addr, MII_ADVERTISE); |
| 1242 | if (err < 0) |
| 1243 | goto out; |
| 1244 | adv = err; |
| 1245 | |
| 1246 | err = mii_read(np, np->phy_addr, MII_LPA); |
| 1247 | if (err < 0) |
| 1248 | goto out; |
| 1249 | lpa = err; |
| 1250 | |
| 1251 | common = adv & lpa; |
| 1252 | |
| 1253 | err = mii_read(np, np->phy_addr, MII_ESTATUS); |
| 1254 | if (err < 0) |
| 1255 | goto out; |
| 1256 | estat = err; |
| 1257 | link_up = 1; |
| 1258 | current_speed = SPEED_1000; |
| 1259 | current_duplex = DUPLEX_FULL; |
| 1260 | |
| 1261 | } |
| 1262 | lp->active_speed = current_speed; |
| 1263 | lp->active_duplex = current_duplex; |
| 1264 | err = 0; |
| 1265 | |
| 1266 | out: |
| 1267 | spin_unlock_irqrestore(&np->lock, flags); |
| 1268 | |
| 1269 | *link_up_p = link_up; |
| 1270 | return err; |
| 1271 | } |
| 1272 | |
Constantin Baranov | 38bb045d | 2009-02-18 17:53:20 -0800 | [diff] [blame] | 1273 | static int link_status_1g(struct niu *np, int *link_up_p) |
| 1274 | { |
| 1275 | struct niu_link_config *lp = &np->link_config; |
| 1276 | unsigned long flags; |
| 1277 | int err; |
| 1278 | |
| 1279 | spin_lock_irqsave(&np->lock, flags); |
| 1280 | |
| 1281 | err = link_status_mii(np, link_up_p); |
| 1282 | lp->supported |= SUPPORTED_TP; |
| 1283 | lp->active_advertising |= ADVERTISED_TP; |
| 1284 | |
| 1285 | spin_unlock_irqrestore(&np->lock, flags); |
| 1286 | return err; |
| 1287 | } |
| 1288 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1289 | static int bcm8704_reset(struct niu *np) |
| 1290 | { |
| 1291 | int err, limit; |
| 1292 | |
| 1293 | err = mdio_read(np, np->phy_addr, |
| 1294 | BCM8704_PHYXS_DEV_ADDR, MII_BMCR); |
Tanli Chang | 9c5cd67 | 2009-05-26 20:45:50 -0700 | [diff] [blame] | 1295 | if (err < 0 || err == 0xffff) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1296 | return err; |
| 1297 | err |= BMCR_RESET; |
| 1298 | err = mdio_write(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR, |
| 1299 | MII_BMCR, err); |
| 1300 | if (err) |
| 1301 | return err; |
| 1302 | |
| 1303 | limit = 1000; |
| 1304 | while (--limit >= 0) { |
| 1305 | err = mdio_read(np, np->phy_addr, |
| 1306 | BCM8704_PHYXS_DEV_ADDR, MII_BMCR); |
| 1307 | if (err < 0) |
| 1308 | return err; |
| 1309 | if (!(err & BMCR_RESET)) |
| 1310 | break; |
| 1311 | } |
| 1312 | if (limit < 0) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 1313 | netdev_err(np->dev, "Port %u PHY will not reset (bmcr=%04x)\n", |
| 1314 | np->port, (err & 0xffff)); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1315 | return -ENODEV; |
| 1316 | } |
| 1317 | return 0; |
| 1318 | } |
| 1319 | |
| 1320 | /* When written, certain PHY registers need to be read back twice |
| 1321 | * in order for the bits to settle properly. |
| 1322 | */ |
| 1323 | static int bcm8704_user_dev3_readback(struct niu *np, int reg) |
| 1324 | { |
| 1325 | int err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, reg); |
| 1326 | if (err < 0) |
| 1327 | return err; |
| 1328 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, reg); |
| 1329 | if (err < 0) |
| 1330 | return err; |
| 1331 | return 0; |
| 1332 | } |
| 1333 | |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 1334 | static int bcm8706_init_user_dev3(struct niu *np) |
| 1335 | { |
| 1336 | int err; |
| 1337 | |
| 1338 | |
| 1339 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, |
| 1340 | BCM8704_USER_OPT_DIGITAL_CTRL); |
| 1341 | if (err < 0) |
| 1342 | return err; |
| 1343 | err &= ~USER_ODIG_CTRL_GPIOS; |
| 1344 | err |= (0x3 << USER_ODIG_CTRL_GPIOS_SHIFT); |
| 1345 | err |= USER_ODIG_CTRL_RESV2; |
| 1346 | err = mdio_write(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, |
| 1347 | BCM8704_USER_OPT_DIGITAL_CTRL, err); |
| 1348 | if (err) |
| 1349 | return err; |
| 1350 | |
| 1351 | mdelay(1000); |
| 1352 | |
| 1353 | return 0; |
| 1354 | } |
| 1355 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1356 | static int bcm8704_init_user_dev3(struct niu *np) |
| 1357 | { |
| 1358 | int err; |
| 1359 | |
| 1360 | err = mdio_write(np, np->phy_addr, |
| 1361 | BCM8704_USER_DEV3_ADDR, BCM8704_USER_CONTROL, |
| 1362 | (USER_CONTROL_OPTXRST_LVL | |
| 1363 | USER_CONTROL_OPBIASFLT_LVL | |
| 1364 | USER_CONTROL_OBTMPFLT_LVL | |
| 1365 | USER_CONTROL_OPPRFLT_LVL | |
| 1366 | USER_CONTROL_OPTXFLT_LVL | |
| 1367 | USER_CONTROL_OPRXLOS_LVL | |
| 1368 | USER_CONTROL_OPRXFLT_LVL | |
| 1369 | USER_CONTROL_OPTXON_LVL | |
| 1370 | (0x3f << USER_CONTROL_RES1_SHIFT))); |
| 1371 | if (err) |
| 1372 | return err; |
| 1373 | |
| 1374 | err = mdio_write(np, np->phy_addr, |
| 1375 | BCM8704_USER_DEV3_ADDR, BCM8704_USER_PMD_TX_CONTROL, |
| 1376 | (USER_PMD_TX_CTL_XFP_CLKEN | |
| 1377 | (1 << USER_PMD_TX_CTL_TX_DAC_TXD_SH) | |
| 1378 | (2 << USER_PMD_TX_CTL_TX_DAC_TXCK_SH) | |
| 1379 | USER_PMD_TX_CTL_TSCK_LPWREN)); |
| 1380 | if (err) |
| 1381 | return err; |
| 1382 | |
| 1383 | err = bcm8704_user_dev3_readback(np, BCM8704_USER_CONTROL); |
| 1384 | if (err) |
| 1385 | return err; |
| 1386 | err = bcm8704_user_dev3_readback(np, BCM8704_USER_PMD_TX_CONTROL); |
| 1387 | if (err) |
| 1388 | return err; |
| 1389 | |
| 1390 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, |
| 1391 | BCM8704_USER_OPT_DIGITAL_CTRL); |
| 1392 | if (err < 0) |
| 1393 | return err; |
| 1394 | err &= ~USER_ODIG_CTRL_GPIOS; |
| 1395 | err |= (0x3 << USER_ODIG_CTRL_GPIOS_SHIFT); |
| 1396 | err = mdio_write(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, |
| 1397 | BCM8704_USER_OPT_DIGITAL_CTRL, err); |
| 1398 | if (err) |
| 1399 | return err; |
| 1400 | |
| 1401 | mdelay(1000); |
| 1402 | |
| 1403 | return 0; |
| 1404 | } |
| 1405 | |
Mirko Lindner | b0de8e4 | 2008-01-10 02:12:44 -0800 | [diff] [blame] | 1406 | static int mrvl88x2011_act_led(struct niu *np, int val) |
| 1407 | { |
| 1408 | int err; |
| 1409 | |
| 1410 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR, |
| 1411 | MRVL88X2011_LED_8_TO_11_CTL); |
| 1412 | if (err < 0) |
| 1413 | return err; |
| 1414 | |
| 1415 | err &= ~MRVL88X2011_LED(MRVL88X2011_LED_ACT,MRVL88X2011_LED_CTL_MASK); |
| 1416 | err |= MRVL88X2011_LED(MRVL88X2011_LED_ACT,val); |
| 1417 | |
| 1418 | return mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR, |
| 1419 | MRVL88X2011_LED_8_TO_11_CTL, err); |
| 1420 | } |
| 1421 | |
| 1422 | static int mrvl88x2011_led_blink_rate(struct niu *np, int rate) |
| 1423 | { |
| 1424 | int err; |
| 1425 | |
| 1426 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR, |
| 1427 | MRVL88X2011_LED_BLINK_CTL); |
| 1428 | if (err >= 0) { |
| 1429 | err &= ~MRVL88X2011_LED_BLKRATE_MASK; |
| 1430 | err |= (rate << 4); |
| 1431 | |
| 1432 | err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR, |
| 1433 | MRVL88X2011_LED_BLINK_CTL, err); |
| 1434 | } |
| 1435 | |
| 1436 | return err; |
| 1437 | } |
| 1438 | |
| 1439 | static int xcvr_init_10g_mrvl88x2011(struct niu *np) |
| 1440 | { |
| 1441 | int err; |
| 1442 | |
| 1443 | /* Set LED functions */ |
| 1444 | err = mrvl88x2011_led_blink_rate(np, MRVL88X2011_LED_BLKRATE_134MS); |
| 1445 | if (err) |
| 1446 | return err; |
| 1447 | |
| 1448 | /* led activity */ |
| 1449 | err = mrvl88x2011_act_led(np, MRVL88X2011_LED_CTL_OFF); |
| 1450 | if (err) |
| 1451 | return err; |
| 1452 | |
| 1453 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR, |
| 1454 | MRVL88X2011_GENERAL_CTL); |
| 1455 | if (err < 0) |
| 1456 | return err; |
| 1457 | |
| 1458 | err |= MRVL88X2011_ENA_XFPREFCLK; |
| 1459 | |
| 1460 | err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR, |
| 1461 | MRVL88X2011_GENERAL_CTL, err); |
| 1462 | if (err < 0) |
| 1463 | return err; |
| 1464 | |
| 1465 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, |
| 1466 | MRVL88X2011_PMA_PMD_CTL_1); |
| 1467 | if (err < 0) |
| 1468 | return err; |
| 1469 | |
| 1470 | if (np->link_config.loopback_mode == LOOPBACK_MAC) |
| 1471 | err |= MRVL88X2011_LOOPBACK; |
| 1472 | else |
| 1473 | err &= ~MRVL88X2011_LOOPBACK; |
| 1474 | |
| 1475 | err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, |
| 1476 | MRVL88X2011_PMA_PMD_CTL_1, err); |
| 1477 | if (err < 0) |
| 1478 | return err; |
| 1479 | |
| 1480 | /* Enable PMD */ |
| 1481 | return mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, |
| 1482 | MRVL88X2011_10G_PMD_TX_DIS, MRVL88X2011_ENA_PMDTX); |
| 1483 | } |
| 1484 | |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 1485 | |
| 1486 | static int xcvr_diag_bcm870x(struct niu *np) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1487 | { |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1488 | u16 analog_stat0, tx_alarm_status; |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 1489 | int err = 0; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1490 | |
| 1491 | #if 1 |
| 1492 | err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR, |
| 1493 | MII_STAT1000); |
| 1494 | if (err < 0) |
| 1495 | return err; |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 1496 | pr_info("Port %u PMA_PMD(MII_STAT1000) [%04x]\n", np->port, err); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1497 | |
| 1498 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, 0x20); |
| 1499 | if (err < 0) |
| 1500 | return err; |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 1501 | pr_info("Port %u USER_DEV3(0x20) [%04x]\n", np->port, err); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1502 | |
| 1503 | err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR, |
| 1504 | MII_NWAYTEST); |
| 1505 | if (err < 0) |
| 1506 | return err; |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 1507 | pr_info("Port %u PHYXS(MII_NWAYTEST) [%04x]\n", np->port, err); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1508 | #endif |
| 1509 | |
| 1510 | /* XXX dig this out it might not be so useful XXX */ |
| 1511 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, |
| 1512 | BCM8704_USER_ANALOG_STATUS0); |
| 1513 | if (err < 0) |
| 1514 | return err; |
| 1515 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, |
| 1516 | BCM8704_USER_ANALOG_STATUS0); |
| 1517 | if (err < 0) |
| 1518 | return err; |
| 1519 | analog_stat0 = err; |
| 1520 | |
| 1521 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, |
| 1522 | BCM8704_USER_TX_ALARM_STATUS); |
| 1523 | if (err < 0) |
| 1524 | return err; |
| 1525 | err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, |
| 1526 | BCM8704_USER_TX_ALARM_STATUS); |
| 1527 | if (err < 0) |
| 1528 | return err; |
| 1529 | tx_alarm_status = err; |
| 1530 | |
| 1531 | if (analog_stat0 != 0x03fc) { |
| 1532 | if ((analog_stat0 == 0x43bc) && (tx_alarm_status != 0)) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 1533 | pr_info("Port %u cable not connected or bad cable\n", |
| 1534 | np->port); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1535 | } else if (analog_stat0 == 0x639c) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 1536 | pr_info("Port %u optical module is bad or missing\n", |
| 1537 | np->port); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1538 | } |
| 1539 | } |
| 1540 | |
| 1541 | return 0; |
| 1542 | } |
| 1543 | |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 1544 | static int xcvr_10g_set_lb_bcm870x(struct niu *np) |
| 1545 | { |
| 1546 | struct niu_link_config *lp = &np->link_config; |
| 1547 | int err; |
| 1548 | |
| 1549 | err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR, |
| 1550 | MII_BMCR); |
| 1551 | if (err < 0) |
| 1552 | return err; |
| 1553 | |
| 1554 | err &= ~BMCR_LOOPBACK; |
| 1555 | |
| 1556 | if (lp->loopback_mode == LOOPBACK_MAC) |
| 1557 | err |= BMCR_LOOPBACK; |
| 1558 | |
| 1559 | err = mdio_write(np, np->phy_addr, BCM8704_PCS_DEV_ADDR, |
| 1560 | MII_BMCR, err); |
| 1561 | if (err) |
| 1562 | return err; |
| 1563 | |
| 1564 | return 0; |
| 1565 | } |
| 1566 | |
| 1567 | static int xcvr_init_10g_bcm8706(struct niu *np) |
| 1568 | { |
| 1569 | int err = 0; |
| 1570 | u64 val; |
| 1571 | |
| 1572 | if ((np->flags & NIU_FLAGS_HOTPLUG_PHY) && |
| 1573 | (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) == 0) |
| 1574 | return err; |
| 1575 | |
| 1576 | val = nr64_mac(XMAC_CONFIG); |
| 1577 | val &= ~XMAC_CONFIG_LED_POLARITY; |
| 1578 | val |= XMAC_CONFIG_FORCE_LED_ON; |
| 1579 | nw64_mac(XMAC_CONFIG, val); |
| 1580 | |
| 1581 | val = nr64(MIF_CONFIG); |
| 1582 | val |= MIF_CONFIG_INDIRECT_MODE; |
| 1583 | nw64(MIF_CONFIG, val); |
| 1584 | |
| 1585 | err = bcm8704_reset(np); |
| 1586 | if (err) |
| 1587 | return err; |
| 1588 | |
| 1589 | err = xcvr_10g_set_lb_bcm870x(np); |
| 1590 | if (err) |
| 1591 | return err; |
| 1592 | |
| 1593 | err = bcm8706_init_user_dev3(np); |
| 1594 | if (err) |
| 1595 | return err; |
| 1596 | |
| 1597 | err = xcvr_diag_bcm870x(np); |
| 1598 | if (err) |
| 1599 | return err; |
| 1600 | |
| 1601 | return 0; |
| 1602 | } |
| 1603 | |
| 1604 | static int xcvr_init_10g_bcm8704(struct niu *np) |
| 1605 | { |
| 1606 | int err; |
| 1607 | |
| 1608 | err = bcm8704_reset(np); |
| 1609 | if (err) |
| 1610 | return err; |
| 1611 | |
| 1612 | err = bcm8704_init_user_dev3(np); |
| 1613 | if (err) |
| 1614 | return err; |
| 1615 | |
| 1616 | err = xcvr_10g_set_lb_bcm870x(np); |
| 1617 | if (err) |
| 1618 | return err; |
| 1619 | |
| 1620 | err = xcvr_diag_bcm870x(np); |
| 1621 | if (err) |
| 1622 | return err; |
| 1623 | |
| 1624 | return 0; |
| 1625 | } |
| 1626 | |
Mirko Lindner | b0de8e4 | 2008-01-10 02:12:44 -0800 | [diff] [blame] | 1627 | static int xcvr_init_10g(struct niu *np) |
| 1628 | { |
| 1629 | int phy_id, err; |
| 1630 | u64 val; |
| 1631 | |
| 1632 | val = nr64_mac(XMAC_CONFIG); |
| 1633 | val &= ~XMAC_CONFIG_LED_POLARITY; |
| 1634 | val |= XMAC_CONFIG_FORCE_LED_ON; |
| 1635 | nw64_mac(XMAC_CONFIG, val); |
| 1636 | |
| 1637 | /* XXX shared resource, lock parent XXX */ |
| 1638 | val = nr64(MIF_CONFIG); |
| 1639 | val |= MIF_CONFIG_INDIRECT_MODE; |
| 1640 | nw64(MIF_CONFIG, val); |
| 1641 | |
| 1642 | phy_id = phy_decode(np->parent->port_phy, np->port); |
| 1643 | phy_id = np->parent->phy_probe_info.phy_id[phy_id][np->port]; |
| 1644 | |
| 1645 | /* handle different phy types */ |
| 1646 | switch (phy_id & NIU_PHY_ID_MASK) { |
| 1647 | case NIU_PHY_ID_MRVL88X2011: |
| 1648 | err = xcvr_init_10g_mrvl88x2011(np); |
| 1649 | break; |
| 1650 | |
| 1651 | default: /* bcom 8704 */ |
| 1652 | err = xcvr_init_10g_bcm8704(np); |
| 1653 | break; |
| 1654 | } |
| 1655 | |
| 1656 | return 0; |
| 1657 | } |
| 1658 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1659 | static int mii_reset(struct niu *np) |
| 1660 | { |
| 1661 | int limit, err; |
| 1662 | |
| 1663 | err = mii_write(np, np->phy_addr, MII_BMCR, BMCR_RESET); |
| 1664 | if (err) |
| 1665 | return err; |
| 1666 | |
| 1667 | limit = 1000; |
| 1668 | while (--limit >= 0) { |
| 1669 | udelay(500); |
| 1670 | err = mii_read(np, np->phy_addr, MII_BMCR); |
| 1671 | if (err < 0) |
| 1672 | return err; |
| 1673 | if (!(err & BMCR_RESET)) |
| 1674 | break; |
| 1675 | } |
| 1676 | if (limit < 0) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 1677 | netdev_err(np->dev, "Port %u MII would not reset, bmcr[%04x]\n", |
| 1678 | np->port, err); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1679 | return -ENODEV; |
| 1680 | } |
| 1681 | |
| 1682 | return 0; |
| 1683 | } |
| 1684 | |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 1685 | static int xcvr_init_1g_rgmii(struct niu *np) |
| 1686 | { |
| 1687 | int err; |
| 1688 | u64 val; |
| 1689 | u16 bmcr, bmsr, estat; |
| 1690 | |
| 1691 | val = nr64(MIF_CONFIG); |
| 1692 | val &= ~MIF_CONFIG_INDIRECT_MODE; |
| 1693 | nw64(MIF_CONFIG, val); |
| 1694 | |
| 1695 | err = mii_reset(np); |
| 1696 | if (err) |
| 1697 | return err; |
| 1698 | |
| 1699 | err = mii_read(np, np->phy_addr, MII_BMSR); |
| 1700 | if (err < 0) |
| 1701 | return err; |
| 1702 | bmsr = err; |
| 1703 | |
| 1704 | estat = 0; |
| 1705 | if (bmsr & BMSR_ESTATEN) { |
| 1706 | err = mii_read(np, np->phy_addr, MII_ESTATUS); |
| 1707 | if (err < 0) |
| 1708 | return err; |
| 1709 | estat = err; |
| 1710 | } |
| 1711 | |
| 1712 | bmcr = 0; |
| 1713 | err = mii_write(np, np->phy_addr, MII_BMCR, bmcr); |
| 1714 | if (err) |
| 1715 | return err; |
| 1716 | |
| 1717 | if (bmsr & BMSR_ESTATEN) { |
| 1718 | u16 ctrl1000 = 0; |
| 1719 | |
| 1720 | if (estat & ESTATUS_1000_TFULL) |
| 1721 | ctrl1000 |= ADVERTISE_1000FULL; |
| 1722 | err = mii_write(np, np->phy_addr, MII_CTRL1000, ctrl1000); |
| 1723 | if (err) |
| 1724 | return err; |
| 1725 | } |
| 1726 | |
| 1727 | bmcr = (BMCR_SPEED1000 | BMCR_FULLDPLX); |
| 1728 | |
| 1729 | err = mii_write(np, np->phy_addr, MII_BMCR, bmcr); |
| 1730 | if (err) |
| 1731 | return err; |
| 1732 | |
| 1733 | err = mii_read(np, np->phy_addr, MII_BMCR); |
| 1734 | if (err < 0) |
| 1735 | return err; |
| 1736 | bmcr = mii_read(np, np->phy_addr, MII_BMCR); |
| 1737 | |
| 1738 | err = mii_read(np, np->phy_addr, MII_BMSR); |
| 1739 | if (err < 0) |
| 1740 | return err; |
| 1741 | |
| 1742 | return 0; |
| 1743 | } |
| 1744 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1745 | static int mii_init_common(struct niu *np) |
| 1746 | { |
| 1747 | struct niu_link_config *lp = &np->link_config; |
| 1748 | u16 bmcr, bmsr, adv, estat; |
| 1749 | int err; |
| 1750 | |
| 1751 | err = mii_reset(np); |
| 1752 | if (err) |
| 1753 | return err; |
| 1754 | |
| 1755 | err = mii_read(np, np->phy_addr, MII_BMSR); |
| 1756 | if (err < 0) |
| 1757 | return err; |
| 1758 | bmsr = err; |
| 1759 | |
| 1760 | estat = 0; |
| 1761 | if (bmsr & BMSR_ESTATEN) { |
| 1762 | err = mii_read(np, np->phy_addr, MII_ESTATUS); |
| 1763 | if (err < 0) |
| 1764 | return err; |
| 1765 | estat = err; |
| 1766 | } |
| 1767 | |
| 1768 | bmcr = 0; |
| 1769 | err = mii_write(np, np->phy_addr, MII_BMCR, bmcr); |
| 1770 | if (err) |
| 1771 | return err; |
| 1772 | |
| 1773 | if (lp->loopback_mode == LOOPBACK_MAC) { |
| 1774 | bmcr |= BMCR_LOOPBACK; |
| 1775 | if (lp->active_speed == SPEED_1000) |
| 1776 | bmcr |= BMCR_SPEED1000; |
| 1777 | if (lp->active_duplex == DUPLEX_FULL) |
| 1778 | bmcr |= BMCR_FULLDPLX; |
| 1779 | } |
| 1780 | |
| 1781 | if (lp->loopback_mode == LOOPBACK_PHY) { |
| 1782 | u16 aux; |
| 1783 | |
| 1784 | aux = (BCM5464R_AUX_CTL_EXT_LB | |
| 1785 | BCM5464R_AUX_CTL_WRITE_1); |
| 1786 | err = mii_write(np, np->phy_addr, BCM5464R_AUX_CTL, aux); |
| 1787 | if (err) |
| 1788 | return err; |
| 1789 | } |
| 1790 | |
Constantin Baranov | 38bb045d | 2009-02-18 17:53:20 -0800 | [diff] [blame] | 1791 | if (lp->autoneg) { |
| 1792 | u16 ctrl1000; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1793 | |
Constantin Baranov | 38bb045d | 2009-02-18 17:53:20 -0800 | [diff] [blame] | 1794 | adv = ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP; |
| 1795 | if ((bmsr & BMSR_10HALF) && |
| 1796 | (lp->advertising & ADVERTISED_10baseT_Half)) |
| 1797 | adv |= ADVERTISE_10HALF; |
| 1798 | if ((bmsr & BMSR_10FULL) && |
| 1799 | (lp->advertising & ADVERTISED_10baseT_Full)) |
| 1800 | adv |= ADVERTISE_10FULL; |
| 1801 | if ((bmsr & BMSR_100HALF) && |
| 1802 | (lp->advertising & ADVERTISED_100baseT_Half)) |
| 1803 | adv |= ADVERTISE_100HALF; |
| 1804 | if ((bmsr & BMSR_100FULL) && |
| 1805 | (lp->advertising & ADVERTISED_100baseT_Full)) |
| 1806 | adv |= ADVERTISE_100FULL; |
| 1807 | err = mii_write(np, np->phy_addr, MII_ADVERTISE, adv); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1808 | if (err) |
| 1809 | return err; |
Constantin Baranov | 38bb045d | 2009-02-18 17:53:20 -0800 | [diff] [blame] | 1810 | |
| 1811 | if (likely(bmsr & BMSR_ESTATEN)) { |
| 1812 | ctrl1000 = 0; |
| 1813 | if ((estat & ESTATUS_1000_THALF) && |
| 1814 | (lp->advertising & ADVERTISED_1000baseT_Half)) |
| 1815 | ctrl1000 |= ADVERTISE_1000HALF; |
| 1816 | if ((estat & ESTATUS_1000_TFULL) && |
| 1817 | (lp->advertising & ADVERTISED_1000baseT_Full)) |
| 1818 | ctrl1000 |= ADVERTISE_1000FULL; |
| 1819 | err = mii_write(np, np->phy_addr, |
| 1820 | MII_CTRL1000, ctrl1000); |
| 1821 | if (err) |
| 1822 | return err; |
| 1823 | } |
| 1824 | |
| 1825 | bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); |
| 1826 | } else { |
| 1827 | /* !lp->autoneg */ |
| 1828 | int fulldpx; |
| 1829 | |
| 1830 | if (lp->duplex == DUPLEX_FULL) { |
| 1831 | bmcr |= BMCR_FULLDPLX; |
| 1832 | fulldpx = 1; |
| 1833 | } else if (lp->duplex == DUPLEX_HALF) |
| 1834 | fulldpx = 0; |
| 1835 | else |
| 1836 | return -EINVAL; |
| 1837 | |
| 1838 | if (lp->speed == SPEED_1000) { |
| 1839 | /* if X-full requested while not supported, or |
| 1840 | X-half requested while not supported... */ |
| 1841 | if ((fulldpx && !(estat & ESTATUS_1000_TFULL)) || |
| 1842 | (!fulldpx && !(estat & ESTATUS_1000_THALF))) |
| 1843 | return -EINVAL; |
| 1844 | bmcr |= BMCR_SPEED1000; |
| 1845 | } else if (lp->speed == SPEED_100) { |
| 1846 | if ((fulldpx && !(bmsr & BMSR_100FULL)) || |
| 1847 | (!fulldpx && !(bmsr & BMSR_100HALF))) |
| 1848 | return -EINVAL; |
| 1849 | bmcr |= BMCR_SPEED100; |
| 1850 | } else if (lp->speed == SPEED_10) { |
| 1851 | if ((fulldpx && !(bmsr & BMSR_10FULL)) || |
| 1852 | (!fulldpx && !(bmsr & BMSR_10HALF))) |
| 1853 | return -EINVAL; |
| 1854 | } else |
| 1855 | return -EINVAL; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1856 | } |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1857 | |
| 1858 | err = mii_write(np, np->phy_addr, MII_BMCR, bmcr); |
| 1859 | if (err) |
| 1860 | return err; |
| 1861 | |
Constantin Baranov | 38bb045d | 2009-02-18 17:53:20 -0800 | [diff] [blame] | 1862 | #if 0 |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1863 | err = mii_read(np, np->phy_addr, MII_BMCR); |
| 1864 | if (err < 0) |
| 1865 | return err; |
Constantin Baranov | 38bb045d | 2009-02-18 17:53:20 -0800 | [diff] [blame] | 1866 | bmcr = err; |
| 1867 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1868 | err = mii_read(np, np->phy_addr, MII_BMSR); |
| 1869 | if (err < 0) |
| 1870 | return err; |
Constantin Baranov | 38bb045d | 2009-02-18 17:53:20 -0800 | [diff] [blame] | 1871 | bmsr = err; |
| 1872 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 1873 | pr_info("Port %u after MII init bmcr[%04x] bmsr[%04x]\n", |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1874 | np->port, bmcr, bmsr); |
| 1875 | #endif |
| 1876 | |
| 1877 | return 0; |
| 1878 | } |
| 1879 | |
| 1880 | static int xcvr_init_1g(struct niu *np) |
| 1881 | { |
| 1882 | u64 val; |
| 1883 | |
| 1884 | /* XXX shared resource, lock parent XXX */ |
| 1885 | val = nr64(MIF_CONFIG); |
| 1886 | val &= ~MIF_CONFIG_INDIRECT_MODE; |
| 1887 | nw64(MIF_CONFIG, val); |
| 1888 | |
| 1889 | return mii_init_common(np); |
| 1890 | } |
| 1891 | |
| 1892 | static int niu_xcvr_init(struct niu *np) |
| 1893 | { |
| 1894 | const struct niu_phy_ops *ops = np->phy_ops; |
| 1895 | int err; |
| 1896 | |
| 1897 | err = 0; |
| 1898 | if (ops->xcvr_init) |
| 1899 | err = ops->xcvr_init(np); |
| 1900 | |
| 1901 | return err; |
| 1902 | } |
| 1903 | |
| 1904 | static int niu_serdes_init(struct niu *np) |
| 1905 | { |
| 1906 | const struct niu_phy_ops *ops = np->phy_ops; |
| 1907 | int err; |
| 1908 | |
| 1909 | err = 0; |
| 1910 | if (ops->serdes_init) |
| 1911 | err = ops->serdes_init(np); |
| 1912 | |
| 1913 | return err; |
| 1914 | } |
| 1915 | |
| 1916 | static void niu_init_xif(struct niu *); |
Mirko Lindner | 0c3b091 | 2007-12-05 21:10:02 -0800 | [diff] [blame] | 1917 | static void niu_handle_led(struct niu *, int status); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1918 | |
| 1919 | static int niu_link_status_common(struct niu *np, int link_up) |
| 1920 | { |
| 1921 | struct niu_link_config *lp = &np->link_config; |
| 1922 | struct net_device *dev = np->dev; |
| 1923 | unsigned long flags; |
| 1924 | |
| 1925 | if (!netif_carrier_ok(dev) && link_up) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 1926 | netif_info(np, link, dev, "Link is up at %s, %s duplex\n", |
| 1927 | lp->active_speed == SPEED_10000 ? "10Gb/sec" : |
| 1928 | lp->active_speed == SPEED_1000 ? "1Gb/sec" : |
| 1929 | lp->active_speed == SPEED_100 ? "100Mbit/sec" : |
| 1930 | "10Mbit/sec", |
| 1931 | lp->active_duplex == DUPLEX_FULL ? "full" : "half"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1932 | |
| 1933 | spin_lock_irqsave(&np->lock, flags); |
| 1934 | niu_init_xif(np); |
Mirko Lindner | 0c3b091 | 2007-12-05 21:10:02 -0800 | [diff] [blame] | 1935 | niu_handle_led(np, 1); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1936 | spin_unlock_irqrestore(&np->lock, flags); |
| 1937 | |
| 1938 | netif_carrier_on(dev); |
| 1939 | } else if (netif_carrier_ok(dev) && !link_up) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 1940 | netif_warn(np, link, dev, "Link is down\n"); |
Mirko Lindner | 0c3b091 | 2007-12-05 21:10:02 -0800 | [diff] [blame] | 1941 | spin_lock_irqsave(&np->lock, flags); |
| 1942 | niu_handle_led(np, 0); |
| 1943 | spin_unlock_irqrestore(&np->lock, flags); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1944 | netif_carrier_off(dev); |
| 1945 | } |
| 1946 | |
| 1947 | return 0; |
| 1948 | } |
| 1949 | |
Mirko Lindner | b0de8e4 | 2008-01-10 02:12:44 -0800 | [diff] [blame] | 1950 | static int link_status_10g_mrvl(struct niu *np, int *link_up_p) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1951 | { |
Mirko Lindner | b0de8e4 | 2008-01-10 02:12:44 -0800 | [diff] [blame] | 1952 | int err, link_up, pma_status, pcs_status; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1953 | |
| 1954 | link_up = 0; |
| 1955 | |
Mirko Lindner | b0de8e4 | 2008-01-10 02:12:44 -0800 | [diff] [blame] | 1956 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, |
| 1957 | MRVL88X2011_10G_PMD_STATUS_2); |
| 1958 | if (err < 0) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 1959 | goto out; |
| 1960 | |
Mirko Lindner | b0de8e4 | 2008-01-10 02:12:44 -0800 | [diff] [blame] | 1961 | /* Check PMA/PMD Register: 1.0001.2 == 1 */ |
| 1962 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR, |
| 1963 | MRVL88X2011_PMA_PMD_STATUS_1); |
| 1964 | if (err < 0) |
| 1965 | goto out; |
| 1966 | |
| 1967 | pma_status = ((err & MRVL88X2011_LNK_STATUS_OK) ? 1 : 0); |
| 1968 | |
| 1969 | /* Check PMC Register : 3.0001.2 == 1: read twice */ |
| 1970 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR, |
| 1971 | MRVL88X2011_PMA_PMD_STATUS_1); |
| 1972 | if (err < 0) |
| 1973 | goto out; |
| 1974 | |
| 1975 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR, |
| 1976 | MRVL88X2011_PMA_PMD_STATUS_1); |
| 1977 | if (err < 0) |
| 1978 | goto out; |
| 1979 | |
| 1980 | pcs_status = ((err & MRVL88X2011_LNK_STATUS_OK) ? 1 : 0); |
| 1981 | |
| 1982 | /* Check XGXS Register : 4.0018.[0-3,12] */ |
| 1983 | err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV4_ADDR, |
| 1984 | MRVL88X2011_10G_XGXS_LANE_STAT); |
| 1985 | if (err < 0) |
| 1986 | goto out; |
| 1987 | |
| 1988 | if (err == (PHYXS_XGXS_LANE_STAT_ALINGED | PHYXS_XGXS_LANE_STAT_LANE3 | |
| 1989 | PHYXS_XGXS_LANE_STAT_LANE2 | PHYXS_XGXS_LANE_STAT_LANE1 | |
| 1990 | PHYXS_XGXS_LANE_STAT_LANE0 | PHYXS_XGXS_LANE_STAT_MAGIC | |
| 1991 | 0x800)) |
| 1992 | link_up = (pma_status && pcs_status) ? 1 : 0; |
| 1993 | |
| 1994 | np->link_config.active_speed = SPEED_10000; |
| 1995 | np->link_config.active_duplex = DUPLEX_FULL; |
| 1996 | err = 0; |
| 1997 | out: |
| 1998 | mrvl88x2011_act_led(np, (link_up ? |
| 1999 | MRVL88X2011_LED_CTL_PCS_ACT : |
| 2000 | MRVL88X2011_LED_CTL_OFF)); |
| 2001 | |
| 2002 | *link_up_p = link_up; |
| 2003 | return err; |
| 2004 | } |
| 2005 | |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 2006 | static int link_status_10g_bcm8706(struct niu *np, int *link_up_p) |
| 2007 | { |
| 2008 | int err, link_up; |
| 2009 | link_up = 0; |
| 2010 | |
| 2011 | err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR, |
| 2012 | BCM8704_PMD_RCV_SIGDET); |
Tanli Chang | 9c5cd67 | 2009-05-26 20:45:50 -0700 | [diff] [blame] | 2013 | if (err < 0 || err == 0xffff) |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 2014 | goto out; |
| 2015 | if (!(err & PMD_RCV_SIGDET_GLOBAL)) { |
| 2016 | err = 0; |
| 2017 | goto out; |
| 2018 | } |
| 2019 | |
| 2020 | err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR, |
| 2021 | BCM8704_PCS_10G_R_STATUS); |
| 2022 | if (err < 0) |
| 2023 | goto out; |
| 2024 | |
| 2025 | if (!(err & PCS_10G_R_STATUS_BLK_LOCK)) { |
| 2026 | err = 0; |
| 2027 | goto out; |
| 2028 | } |
| 2029 | |
| 2030 | err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR, |
| 2031 | BCM8704_PHYXS_XGXS_LANE_STAT); |
| 2032 | if (err < 0) |
| 2033 | goto out; |
| 2034 | if (err != (PHYXS_XGXS_LANE_STAT_ALINGED | |
| 2035 | PHYXS_XGXS_LANE_STAT_MAGIC | |
| 2036 | PHYXS_XGXS_LANE_STAT_PATTEST | |
| 2037 | PHYXS_XGXS_LANE_STAT_LANE3 | |
| 2038 | PHYXS_XGXS_LANE_STAT_LANE2 | |
| 2039 | PHYXS_XGXS_LANE_STAT_LANE1 | |
| 2040 | PHYXS_XGXS_LANE_STAT_LANE0)) { |
| 2041 | err = 0; |
| 2042 | np->link_config.active_speed = SPEED_INVALID; |
| 2043 | np->link_config.active_duplex = DUPLEX_INVALID; |
| 2044 | goto out; |
| 2045 | } |
| 2046 | |
| 2047 | link_up = 1; |
| 2048 | np->link_config.active_speed = SPEED_10000; |
| 2049 | np->link_config.active_duplex = DUPLEX_FULL; |
| 2050 | err = 0; |
| 2051 | |
| 2052 | out: |
| 2053 | *link_up_p = link_up; |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 2054 | return err; |
| 2055 | } |
| 2056 | |
Mirko Lindner | b0de8e4 | 2008-01-10 02:12:44 -0800 | [diff] [blame] | 2057 | static int link_status_10g_bcom(struct niu *np, int *link_up_p) |
| 2058 | { |
| 2059 | int err, link_up; |
| 2060 | |
| 2061 | link_up = 0; |
| 2062 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2063 | err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR, |
| 2064 | BCM8704_PMD_RCV_SIGDET); |
| 2065 | if (err < 0) |
| 2066 | goto out; |
| 2067 | if (!(err & PMD_RCV_SIGDET_GLOBAL)) { |
| 2068 | err = 0; |
| 2069 | goto out; |
| 2070 | } |
| 2071 | |
| 2072 | err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR, |
| 2073 | BCM8704_PCS_10G_R_STATUS); |
| 2074 | if (err < 0) |
| 2075 | goto out; |
| 2076 | if (!(err & PCS_10G_R_STATUS_BLK_LOCK)) { |
| 2077 | err = 0; |
| 2078 | goto out; |
| 2079 | } |
| 2080 | |
| 2081 | err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR, |
| 2082 | BCM8704_PHYXS_XGXS_LANE_STAT); |
| 2083 | if (err < 0) |
| 2084 | goto out; |
| 2085 | |
| 2086 | if (err != (PHYXS_XGXS_LANE_STAT_ALINGED | |
| 2087 | PHYXS_XGXS_LANE_STAT_MAGIC | |
| 2088 | PHYXS_XGXS_LANE_STAT_LANE3 | |
| 2089 | PHYXS_XGXS_LANE_STAT_LANE2 | |
| 2090 | PHYXS_XGXS_LANE_STAT_LANE1 | |
| 2091 | PHYXS_XGXS_LANE_STAT_LANE0)) { |
| 2092 | err = 0; |
| 2093 | goto out; |
| 2094 | } |
| 2095 | |
| 2096 | link_up = 1; |
| 2097 | np->link_config.active_speed = SPEED_10000; |
| 2098 | np->link_config.active_duplex = DUPLEX_FULL; |
| 2099 | err = 0; |
| 2100 | |
| 2101 | out: |
Mirko Lindner | b0de8e4 | 2008-01-10 02:12:44 -0800 | [diff] [blame] | 2102 | *link_up_p = link_up; |
| 2103 | return err; |
| 2104 | } |
| 2105 | |
| 2106 | static int link_status_10g(struct niu *np, int *link_up_p) |
| 2107 | { |
| 2108 | unsigned long flags; |
| 2109 | int err = -EINVAL; |
| 2110 | |
| 2111 | spin_lock_irqsave(&np->lock, flags); |
| 2112 | |
| 2113 | if (np->link_config.loopback_mode == LOOPBACK_DISABLED) { |
| 2114 | int phy_id; |
| 2115 | |
| 2116 | phy_id = phy_decode(np->parent->port_phy, np->port); |
| 2117 | phy_id = np->parent->phy_probe_info.phy_id[phy_id][np->port]; |
| 2118 | |
| 2119 | /* handle different phy types */ |
| 2120 | switch (phy_id & NIU_PHY_ID_MASK) { |
| 2121 | case NIU_PHY_ID_MRVL88X2011: |
| 2122 | err = link_status_10g_mrvl(np, link_up_p); |
| 2123 | break; |
| 2124 | |
| 2125 | default: /* bcom 8704 */ |
| 2126 | err = link_status_10g_bcom(np, link_up_p); |
| 2127 | break; |
| 2128 | } |
| 2129 | } |
| 2130 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2131 | spin_unlock_irqrestore(&np->lock, flags); |
| 2132 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2133 | return err; |
| 2134 | } |
| 2135 | |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 2136 | static int niu_10g_phy_present(struct niu *np) |
| 2137 | { |
| 2138 | u64 sig, mask, val; |
| 2139 | |
| 2140 | sig = nr64(ESR_INT_SIGNALS); |
| 2141 | switch (np->port) { |
| 2142 | case 0: |
| 2143 | mask = ESR_INT_SIGNALS_P0_BITS; |
| 2144 | val = (ESR_INT_SRDY0_P0 | |
| 2145 | ESR_INT_DET0_P0 | |
| 2146 | ESR_INT_XSRDY_P0 | |
| 2147 | ESR_INT_XDP_P0_CH3 | |
| 2148 | ESR_INT_XDP_P0_CH2 | |
| 2149 | ESR_INT_XDP_P0_CH1 | |
| 2150 | ESR_INT_XDP_P0_CH0); |
| 2151 | break; |
| 2152 | |
| 2153 | case 1: |
| 2154 | mask = ESR_INT_SIGNALS_P1_BITS; |
| 2155 | val = (ESR_INT_SRDY0_P1 | |
| 2156 | ESR_INT_DET0_P1 | |
| 2157 | ESR_INT_XSRDY_P1 | |
| 2158 | ESR_INT_XDP_P1_CH3 | |
| 2159 | ESR_INT_XDP_P1_CH2 | |
| 2160 | ESR_INT_XDP_P1_CH1 | |
| 2161 | ESR_INT_XDP_P1_CH0); |
| 2162 | break; |
| 2163 | |
| 2164 | default: |
| 2165 | return 0; |
| 2166 | } |
| 2167 | |
| 2168 | if ((sig & mask) != val) |
| 2169 | return 0; |
| 2170 | return 1; |
| 2171 | } |
| 2172 | |
| 2173 | static int link_status_10g_hotplug(struct niu *np, int *link_up_p) |
| 2174 | { |
| 2175 | unsigned long flags; |
| 2176 | int err = 0; |
| 2177 | int phy_present; |
| 2178 | int phy_present_prev; |
| 2179 | |
| 2180 | spin_lock_irqsave(&np->lock, flags); |
| 2181 | |
| 2182 | if (np->link_config.loopback_mode == LOOPBACK_DISABLED) { |
| 2183 | phy_present_prev = (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) ? |
| 2184 | 1 : 0; |
| 2185 | phy_present = niu_10g_phy_present(np); |
| 2186 | if (phy_present != phy_present_prev) { |
| 2187 | /* state change */ |
| 2188 | if (phy_present) { |
Tanli Chang | 9c5cd67 | 2009-05-26 20:45:50 -0700 | [diff] [blame] | 2189 | /* A NEM was just plugged in */ |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 2190 | np->flags |= NIU_FLAGS_HOTPLUG_PHY_PRESENT; |
| 2191 | if (np->phy_ops->xcvr_init) |
| 2192 | err = np->phy_ops->xcvr_init(np); |
| 2193 | if (err) { |
Tanli Chang | 9c5cd67 | 2009-05-26 20:45:50 -0700 | [diff] [blame] | 2194 | err = mdio_read(np, np->phy_addr, |
| 2195 | BCM8704_PHYXS_DEV_ADDR, MII_BMCR); |
| 2196 | if (err == 0xffff) { |
| 2197 | /* No mdio, back-to-back XAUI */ |
| 2198 | goto out; |
| 2199 | } |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 2200 | /* debounce */ |
| 2201 | np->flags &= ~NIU_FLAGS_HOTPLUG_PHY_PRESENT; |
| 2202 | } |
| 2203 | } else { |
| 2204 | np->flags &= ~NIU_FLAGS_HOTPLUG_PHY_PRESENT; |
| 2205 | *link_up_p = 0; |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 2206 | netif_warn(np, link, np->dev, |
| 2207 | "Hotplug PHY Removed\n"); |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 2208 | } |
| 2209 | } |
Tanli Chang | 9c5cd67 | 2009-05-26 20:45:50 -0700 | [diff] [blame] | 2210 | out: |
| 2211 | if (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) { |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 2212 | err = link_status_10g_bcm8706(np, link_up_p); |
Tanli Chang | 9c5cd67 | 2009-05-26 20:45:50 -0700 | [diff] [blame] | 2213 | if (err == 0xffff) { |
| 2214 | /* No mdio, back-to-back XAUI: it is C10NEM */ |
| 2215 | *link_up_p = 1; |
| 2216 | np->link_config.active_speed = SPEED_10000; |
| 2217 | np->link_config.active_duplex = DUPLEX_FULL; |
| 2218 | } |
| 2219 | } |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 2220 | } |
| 2221 | |
| 2222 | spin_unlock_irqrestore(&np->lock, flags); |
| 2223 | |
Tanli Chang | 9c5cd67 | 2009-05-26 20:45:50 -0700 | [diff] [blame] | 2224 | return 0; |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 2225 | } |
| 2226 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2227 | static int niu_link_status(struct niu *np, int *link_up_p) |
| 2228 | { |
| 2229 | const struct niu_phy_ops *ops = np->phy_ops; |
| 2230 | int err; |
| 2231 | |
| 2232 | err = 0; |
| 2233 | if (ops->link_status) |
| 2234 | err = ops->link_status(np, link_up_p); |
| 2235 | |
| 2236 | return err; |
| 2237 | } |
| 2238 | |
| 2239 | static void niu_timer(unsigned long __opaque) |
| 2240 | { |
| 2241 | struct niu *np = (struct niu *) __opaque; |
| 2242 | unsigned long off; |
| 2243 | int err, link_up; |
| 2244 | |
| 2245 | err = niu_link_status(np, &link_up); |
| 2246 | if (!err) |
| 2247 | niu_link_status_common(np, link_up); |
| 2248 | |
| 2249 | if (netif_carrier_ok(np->dev)) |
| 2250 | off = 5 * HZ; |
| 2251 | else |
| 2252 | off = 1 * HZ; |
| 2253 | np->timer.expires = jiffies + off; |
| 2254 | |
| 2255 | add_timer(&np->timer); |
| 2256 | } |
| 2257 | |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 2258 | static const struct niu_phy_ops phy_ops_10g_serdes = { |
| 2259 | .serdes_init = serdes_init_10g_serdes, |
| 2260 | .link_status = link_status_10g_serdes, |
| 2261 | }; |
| 2262 | |
Santwona Behera | e3e081e | 2008-11-14 14:44:08 -0800 | [diff] [blame] | 2263 | static const struct niu_phy_ops phy_ops_10g_serdes_niu = { |
| 2264 | .serdes_init = serdes_init_niu_10g_serdes, |
| 2265 | .link_status = link_status_10g_serdes, |
| 2266 | }; |
| 2267 | |
| 2268 | static const struct niu_phy_ops phy_ops_1g_serdes_niu = { |
| 2269 | .serdes_init = serdes_init_niu_1g_serdes, |
| 2270 | .link_status = link_status_1g_serdes, |
| 2271 | }; |
| 2272 | |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 2273 | static const struct niu_phy_ops phy_ops_1g_rgmii = { |
| 2274 | .xcvr_init = xcvr_init_1g_rgmii, |
| 2275 | .link_status = link_status_1g_rgmii, |
| 2276 | }; |
| 2277 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2278 | static const struct niu_phy_ops phy_ops_10g_fiber_niu = { |
Santwona Behera | e3e081e | 2008-11-14 14:44:08 -0800 | [diff] [blame] | 2279 | .serdes_init = serdes_init_niu_10g_fiber, |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2280 | .xcvr_init = xcvr_init_10g, |
| 2281 | .link_status = link_status_10g, |
| 2282 | }; |
| 2283 | |
| 2284 | static const struct niu_phy_ops phy_ops_10g_fiber = { |
| 2285 | .serdes_init = serdes_init_10g, |
| 2286 | .xcvr_init = xcvr_init_10g, |
| 2287 | .link_status = link_status_10g, |
| 2288 | }; |
| 2289 | |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 2290 | static const struct niu_phy_ops phy_ops_10g_fiber_hotplug = { |
| 2291 | .serdes_init = serdes_init_10g, |
| 2292 | .xcvr_init = xcvr_init_10g_bcm8706, |
| 2293 | .link_status = link_status_10g_hotplug, |
| 2294 | }; |
| 2295 | |
Tanli Chang | 9c5cd67 | 2009-05-26 20:45:50 -0700 | [diff] [blame] | 2296 | static const struct niu_phy_ops phy_ops_niu_10g_hotplug = { |
| 2297 | .serdes_init = serdes_init_niu_10g_fiber, |
| 2298 | .xcvr_init = xcvr_init_10g_bcm8706, |
| 2299 | .link_status = link_status_10g_hotplug, |
| 2300 | }; |
| 2301 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2302 | static const struct niu_phy_ops phy_ops_10g_copper = { |
| 2303 | .serdes_init = serdes_init_10g, |
| 2304 | .link_status = link_status_10g, /* XXX */ |
| 2305 | }; |
| 2306 | |
| 2307 | static const struct niu_phy_ops phy_ops_1g_fiber = { |
| 2308 | .serdes_init = serdes_init_1g, |
| 2309 | .xcvr_init = xcvr_init_1g, |
| 2310 | .link_status = link_status_1g, |
| 2311 | }; |
| 2312 | |
| 2313 | static const struct niu_phy_ops phy_ops_1g_copper = { |
| 2314 | .xcvr_init = xcvr_init_1g, |
| 2315 | .link_status = link_status_1g, |
| 2316 | }; |
| 2317 | |
| 2318 | struct niu_phy_template { |
| 2319 | const struct niu_phy_ops *ops; |
| 2320 | u32 phy_addr_base; |
| 2321 | }; |
| 2322 | |
Santwona Behera | e3e081e | 2008-11-14 14:44:08 -0800 | [diff] [blame] | 2323 | static const struct niu_phy_template phy_template_niu_10g_fiber = { |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2324 | .ops = &phy_ops_10g_fiber_niu, |
| 2325 | .phy_addr_base = 16, |
| 2326 | }; |
| 2327 | |
Santwona Behera | e3e081e | 2008-11-14 14:44:08 -0800 | [diff] [blame] | 2328 | static const struct niu_phy_template phy_template_niu_10g_serdes = { |
| 2329 | .ops = &phy_ops_10g_serdes_niu, |
| 2330 | .phy_addr_base = 0, |
| 2331 | }; |
| 2332 | |
| 2333 | static const struct niu_phy_template phy_template_niu_1g_serdes = { |
| 2334 | .ops = &phy_ops_1g_serdes_niu, |
| 2335 | .phy_addr_base = 0, |
| 2336 | }; |
| 2337 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2338 | static const struct niu_phy_template phy_template_10g_fiber = { |
| 2339 | .ops = &phy_ops_10g_fiber, |
| 2340 | .phy_addr_base = 8, |
| 2341 | }; |
| 2342 | |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 2343 | static const struct niu_phy_template phy_template_10g_fiber_hotplug = { |
| 2344 | .ops = &phy_ops_10g_fiber_hotplug, |
| 2345 | .phy_addr_base = 8, |
| 2346 | }; |
| 2347 | |
Tanli Chang | 9c5cd67 | 2009-05-26 20:45:50 -0700 | [diff] [blame] | 2348 | static const struct niu_phy_template phy_template_niu_10g_hotplug = { |
| 2349 | .ops = &phy_ops_niu_10g_hotplug, |
| 2350 | .phy_addr_base = 8, |
| 2351 | }; |
| 2352 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2353 | static const struct niu_phy_template phy_template_10g_copper = { |
| 2354 | .ops = &phy_ops_10g_copper, |
| 2355 | .phy_addr_base = 10, |
| 2356 | }; |
| 2357 | |
| 2358 | static const struct niu_phy_template phy_template_1g_fiber = { |
| 2359 | .ops = &phy_ops_1g_fiber, |
| 2360 | .phy_addr_base = 0, |
| 2361 | }; |
| 2362 | |
| 2363 | static const struct niu_phy_template phy_template_1g_copper = { |
| 2364 | .ops = &phy_ops_1g_copper, |
| 2365 | .phy_addr_base = 0, |
| 2366 | }; |
| 2367 | |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 2368 | static const struct niu_phy_template phy_template_1g_rgmii = { |
| 2369 | .ops = &phy_ops_1g_rgmii, |
| 2370 | .phy_addr_base = 0, |
| 2371 | }; |
| 2372 | |
| 2373 | static const struct niu_phy_template phy_template_10g_serdes = { |
| 2374 | .ops = &phy_ops_10g_serdes, |
| 2375 | .phy_addr_base = 0, |
| 2376 | }; |
| 2377 | |
| 2378 | static int niu_atca_port_num[4] = { |
| 2379 | 0, 0, 11, 10 |
| 2380 | }; |
| 2381 | |
| 2382 | static int serdes_init_10g_serdes(struct niu *np) |
| 2383 | { |
| 2384 | struct niu_link_config *lp = &np->link_config; |
| 2385 | unsigned long ctrl_reg, test_cfg_reg, pll_cfg, i; |
| 2386 | u64 ctrl_val, test_cfg_val, sig, mask, val; |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 2387 | u64 reset_val; |
| 2388 | |
| 2389 | switch (np->port) { |
| 2390 | case 0: |
| 2391 | reset_val = ENET_SERDES_RESET_0; |
| 2392 | ctrl_reg = ENET_SERDES_0_CTRL_CFG; |
| 2393 | test_cfg_reg = ENET_SERDES_0_TEST_CFG; |
| 2394 | pll_cfg = ENET_SERDES_0_PLL_CFG; |
| 2395 | break; |
| 2396 | case 1: |
| 2397 | reset_val = ENET_SERDES_RESET_1; |
| 2398 | ctrl_reg = ENET_SERDES_1_CTRL_CFG; |
| 2399 | test_cfg_reg = ENET_SERDES_1_TEST_CFG; |
| 2400 | pll_cfg = ENET_SERDES_1_PLL_CFG; |
| 2401 | break; |
| 2402 | |
| 2403 | default: |
| 2404 | return -EINVAL; |
| 2405 | } |
| 2406 | ctrl_val = (ENET_SERDES_CTRL_SDET_0 | |
| 2407 | ENET_SERDES_CTRL_SDET_1 | |
| 2408 | ENET_SERDES_CTRL_SDET_2 | |
| 2409 | ENET_SERDES_CTRL_SDET_3 | |
| 2410 | (0x5 << ENET_SERDES_CTRL_EMPH_0_SHIFT) | |
| 2411 | (0x5 << ENET_SERDES_CTRL_EMPH_1_SHIFT) | |
| 2412 | (0x5 << ENET_SERDES_CTRL_EMPH_2_SHIFT) | |
| 2413 | (0x5 << ENET_SERDES_CTRL_EMPH_3_SHIFT) | |
| 2414 | (0x1 << ENET_SERDES_CTRL_LADJ_0_SHIFT) | |
| 2415 | (0x1 << ENET_SERDES_CTRL_LADJ_1_SHIFT) | |
| 2416 | (0x1 << ENET_SERDES_CTRL_LADJ_2_SHIFT) | |
| 2417 | (0x1 << ENET_SERDES_CTRL_LADJ_3_SHIFT)); |
| 2418 | test_cfg_val = 0; |
| 2419 | |
| 2420 | if (lp->loopback_mode == LOOPBACK_PHY) { |
| 2421 | test_cfg_val |= ((ENET_TEST_MD_PAD_LOOPBACK << |
| 2422 | ENET_SERDES_TEST_MD_0_SHIFT) | |
| 2423 | (ENET_TEST_MD_PAD_LOOPBACK << |
| 2424 | ENET_SERDES_TEST_MD_1_SHIFT) | |
| 2425 | (ENET_TEST_MD_PAD_LOOPBACK << |
| 2426 | ENET_SERDES_TEST_MD_2_SHIFT) | |
| 2427 | (ENET_TEST_MD_PAD_LOOPBACK << |
| 2428 | ENET_SERDES_TEST_MD_3_SHIFT)); |
| 2429 | } |
| 2430 | |
| 2431 | esr_reset(np); |
| 2432 | nw64(pll_cfg, ENET_SERDES_PLL_FBDIV2); |
| 2433 | nw64(ctrl_reg, ctrl_val); |
| 2434 | nw64(test_cfg_reg, test_cfg_val); |
| 2435 | |
| 2436 | /* Initialize all 4 lanes of the SERDES. */ |
| 2437 | for (i = 0; i < 4; i++) { |
| 2438 | u32 rxtx_ctrl, glue0; |
Hannes Eder | 7c34eb8 | 2009-02-14 11:12:48 +0000 | [diff] [blame] | 2439 | int err; |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 2440 | |
| 2441 | err = esr_read_rxtx_ctrl(np, i, &rxtx_ctrl); |
| 2442 | if (err) |
| 2443 | return err; |
| 2444 | err = esr_read_glue0(np, i, &glue0); |
| 2445 | if (err) |
| 2446 | return err; |
| 2447 | |
| 2448 | rxtx_ctrl &= ~(ESR_RXTX_CTRL_VMUXLO); |
| 2449 | rxtx_ctrl |= (ESR_RXTX_CTRL_ENSTRETCH | |
| 2450 | (2 << ESR_RXTX_CTRL_VMUXLO_SHIFT)); |
| 2451 | |
| 2452 | glue0 &= ~(ESR_GLUE_CTRL0_SRATE | |
| 2453 | ESR_GLUE_CTRL0_THCNT | |
| 2454 | ESR_GLUE_CTRL0_BLTIME); |
| 2455 | glue0 |= (ESR_GLUE_CTRL0_RXLOSENAB | |
| 2456 | (0xf << ESR_GLUE_CTRL0_SRATE_SHIFT) | |
| 2457 | (0xff << ESR_GLUE_CTRL0_THCNT_SHIFT) | |
| 2458 | (BLTIME_300_CYCLES << |
| 2459 | ESR_GLUE_CTRL0_BLTIME_SHIFT)); |
| 2460 | |
| 2461 | err = esr_write_rxtx_ctrl(np, i, rxtx_ctrl); |
| 2462 | if (err) |
| 2463 | return err; |
| 2464 | err = esr_write_glue0(np, i, glue0); |
| 2465 | if (err) |
| 2466 | return err; |
| 2467 | } |
| 2468 | |
| 2469 | |
| 2470 | sig = nr64(ESR_INT_SIGNALS); |
| 2471 | switch (np->port) { |
| 2472 | case 0: |
| 2473 | mask = ESR_INT_SIGNALS_P0_BITS; |
| 2474 | val = (ESR_INT_SRDY0_P0 | |
| 2475 | ESR_INT_DET0_P0 | |
| 2476 | ESR_INT_XSRDY_P0 | |
| 2477 | ESR_INT_XDP_P0_CH3 | |
| 2478 | ESR_INT_XDP_P0_CH2 | |
| 2479 | ESR_INT_XDP_P0_CH1 | |
| 2480 | ESR_INT_XDP_P0_CH0); |
| 2481 | break; |
| 2482 | |
| 2483 | case 1: |
| 2484 | mask = ESR_INT_SIGNALS_P1_BITS; |
| 2485 | val = (ESR_INT_SRDY0_P1 | |
| 2486 | ESR_INT_DET0_P1 | |
| 2487 | ESR_INT_XSRDY_P1 | |
| 2488 | ESR_INT_XDP_P1_CH3 | |
| 2489 | ESR_INT_XDP_P1_CH2 | |
| 2490 | ESR_INT_XDP_P1_CH1 | |
| 2491 | ESR_INT_XDP_P1_CH0); |
| 2492 | break; |
| 2493 | |
| 2494 | default: |
| 2495 | return -EINVAL; |
| 2496 | } |
| 2497 | |
| 2498 | if ((sig & mask) != val) { |
| 2499 | int err; |
| 2500 | err = serdes_init_1g_serdes(np); |
| 2501 | if (!err) { |
| 2502 | np->flags &= ~NIU_FLAGS_10G; |
| 2503 | np->mac_xcvr = MAC_XCVR_PCS; |
| 2504 | } else { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 2505 | netdev_err(np->dev, "Port %u 10G/1G SERDES Link Failed\n", |
| 2506 | np->port); |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 2507 | return -ENODEV; |
| 2508 | } |
| 2509 | } |
| 2510 | |
| 2511 | return 0; |
| 2512 | } |
| 2513 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2514 | static int niu_determine_phy_disposition(struct niu *np) |
| 2515 | { |
| 2516 | struct niu_parent *parent = np->parent; |
| 2517 | u8 plat_type = parent->plat_type; |
| 2518 | const struct niu_phy_template *tp; |
| 2519 | u32 phy_addr_off = 0; |
| 2520 | |
| 2521 | if (plat_type == PLAT_TYPE_NIU) { |
Santwona Behera | e3e081e | 2008-11-14 14:44:08 -0800 | [diff] [blame] | 2522 | switch (np->flags & |
| 2523 | (NIU_FLAGS_10G | |
| 2524 | NIU_FLAGS_FIBER | |
| 2525 | NIU_FLAGS_XCVR_SERDES)) { |
| 2526 | case NIU_FLAGS_10G | NIU_FLAGS_XCVR_SERDES: |
| 2527 | /* 10G Serdes */ |
| 2528 | tp = &phy_template_niu_10g_serdes; |
| 2529 | break; |
| 2530 | case NIU_FLAGS_XCVR_SERDES: |
| 2531 | /* 1G Serdes */ |
| 2532 | tp = &phy_template_niu_1g_serdes; |
| 2533 | break; |
| 2534 | case NIU_FLAGS_10G | NIU_FLAGS_FIBER: |
| 2535 | /* 10G Fiber */ |
| 2536 | default: |
Tanli Chang | 9c5cd67 | 2009-05-26 20:45:50 -0700 | [diff] [blame] | 2537 | if (np->flags & NIU_FLAGS_HOTPLUG_PHY) { |
| 2538 | tp = &phy_template_niu_10g_hotplug; |
| 2539 | if (np->port == 0) |
| 2540 | phy_addr_off = 8; |
| 2541 | if (np->port == 1) |
| 2542 | phy_addr_off = 12; |
| 2543 | } else { |
| 2544 | tp = &phy_template_niu_10g_fiber; |
| 2545 | phy_addr_off += np->port; |
| 2546 | } |
Santwona Behera | e3e081e | 2008-11-14 14:44:08 -0800 | [diff] [blame] | 2547 | break; |
| 2548 | } |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2549 | } else { |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 2550 | switch (np->flags & |
| 2551 | (NIU_FLAGS_10G | |
| 2552 | NIU_FLAGS_FIBER | |
| 2553 | NIU_FLAGS_XCVR_SERDES)) { |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2554 | case 0: |
| 2555 | /* 1G copper */ |
| 2556 | tp = &phy_template_1g_copper; |
| 2557 | if (plat_type == PLAT_TYPE_VF_P0) |
| 2558 | phy_addr_off = 10; |
| 2559 | else if (plat_type == PLAT_TYPE_VF_P1) |
| 2560 | phy_addr_off = 26; |
| 2561 | |
| 2562 | phy_addr_off += (np->port ^ 0x3); |
| 2563 | break; |
| 2564 | |
| 2565 | case NIU_FLAGS_10G: |
| 2566 | /* 10G copper */ |
Constantin Baranov | e0d8496 | 2009-02-18 17:52:41 -0800 | [diff] [blame] | 2567 | tp = &phy_template_10g_copper; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2568 | break; |
| 2569 | |
| 2570 | case NIU_FLAGS_FIBER: |
| 2571 | /* 1G fiber */ |
| 2572 | tp = &phy_template_1g_fiber; |
| 2573 | break; |
| 2574 | |
| 2575 | case NIU_FLAGS_10G | NIU_FLAGS_FIBER: |
| 2576 | /* 10G fiber */ |
| 2577 | tp = &phy_template_10g_fiber; |
| 2578 | if (plat_type == PLAT_TYPE_VF_P0 || |
| 2579 | plat_type == PLAT_TYPE_VF_P1) |
| 2580 | phy_addr_off = 8; |
| 2581 | phy_addr_off += np->port; |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 2582 | if (np->flags & NIU_FLAGS_HOTPLUG_PHY) { |
| 2583 | tp = &phy_template_10g_fiber_hotplug; |
| 2584 | if (np->port == 0) |
| 2585 | phy_addr_off = 8; |
| 2586 | if (np->port == 1) |
| 2587 | phy_addr_off = 12; |
| 2588 | } |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2589 | break; |
| 2590 | |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 2591 | case NIU_FLAGS_10G | NIU_FLAGS_XCVR_SERDES: |
| 2592 | case NIU_FLAGS_XCVR_SERDES | NIU_FLAGS_FIBER: |
| 2593 | case NIU_FLAGS_XCVR_SERDES: |
| 2594 | switch(np->port) { |
| 2595 | case 0: |
| 2596 | case 1: |
| 2597 | tp = &phy_template_10g_serdes; |
| 2598 | break; |
| 2599 | case 2: |
| 2600 | case 3: |
| 2601 | tp = &phy_template_1g_rgmii; |
| 2602 | break; |
| 2603 | default: |
| 2604 | return -EINVAL; |
| 2605 | break; |
| 2606 | } |
| 2607 | phy_addr_off = niu_atca_port_num[np->port]; |
| 2608 | break; |
| 2609 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2610 | default: |
| 2611 | return -EINVAL; |
| 2612 | } |
| 2613 | } |
| 2614 | |
| 2615 | np->phy_ops = tp->ops; |
| 2616 | np->phy_addr = tp->phy_addr_base + phy_addr_off; |
| 2617 | |
| 2618 | return 0; |
| 2619 | } |
| 2620 | |
| 2621 | static int niu_init_link(struct niu *np) |
| 2622 | { |
| 2623 | struct niu_parent *parent = np->parent; |
| 2624 | int err, ignore; |
| 2625 | |
| 2626 | if (parent->plat_type == PLAT_TYPE_NIU) { |
| 2627 | err = niu_xcvr_init(np); |
| 2628 | if (err) |
| 2629 | return err; |
| 2630 | msleep(200); |
| 2631 | } |
| 2632 | err = niu_serdes_init(np); |
Tanli Chang | 9c5cd67 | 2009-05-26 20:45:50 -0700 | [diff] [blame] | 2633 | if (err && !(np->flags & NIU_FLAGS_HOTPLUG_PHY)) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2634 | return err; |
| 2635 | msleep(200); |
| 2636 | err = niu_xcvr_init(np); |
Tanli Chang | 9c5cd67 | 2009-05-26 20:45:50 -0700 | [diff] [blame] | 2637 | if (!err || (np->flags & NIU_FLAGS_HOTPLUG_PHY)) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2638 | niu_link_status(np, &ignore); |
| 2639 | return 0; |
| 2640 | } |
| 2641 | |
| 2642 | static void niu_set_primary_mac(struct niu *np, unsigned char *addr) |
| 2643 | { |
| 2644 | u16 reg0 = addr[4] << 8 | addr[5]; |
| 2645 | u16 reg1 = addr[2] << 8 | addr[3]; |
| 2646 | u16 reg2 = addr[0] << 8 | addr[1]; |
| 2647 | |
| 2648 | if (np->flags & NIU_FLAGS_XMAC) { |
| 2649 | nw64_mac(XMAC_ADDR0, reg0); |
| 2650 | nw64_mac(XMAC_ADDR1, reg1); |
| 2651 | nw64_mac(XMAC_ADDR2, reg2); |
| 2652 | } else { |
| 2653 | nw64_mac(BMAC_ADDR0, reg0); |
| 2654 | nw64_mac(BMAC_ADDR1, reg1); |
| 2655 | nw64_mac(BMAC_ADDR2, reg2); |
| 2656 | } |
| 2657 | } |
| 2658 | |
| 2659 | static int niu_num_alt_addr(struct niu *np) |
| 2660 | { |
| 2661 | if (np->flags & NIU_FLAGS_XMAC) |
| 2662 | return XMAC_NUM_ALT_ADDR; |
| 2663 | else |
| 2664 | return BMAC_NUM_ALT_ADDR; |
| 2665 | } |
| 2666 | |
| 2667 | static int niu_set_alt_mac(struct niu *np, int index, unsigned char *addr) |
| 2668 | { |
| 2669 | u16 reg0 = addr[4] << 8 | addr[5]; |
| 2670 | u16 reg1 = addr[2] << 8 | addr[3]; |
| 2671 | u16 reg2 = addr[0] << 8 | addr[1]; |
| 2672 | |
| 2673 | if (index >= niu_num_alt_addr(np)) |
| 2674 | return -EINVAL; |
| 2675 | |
| 2676 | if (np->flags & NIU_FLAGS_XMAC) { |
| 2677 | nw64_mac(XMAC_ALT_ADDR0(index), reg0); |
| 2678 | nw64_mac(XMAC_ALT_ADDR1(index), reg1); |
| 2679 | nw64_mac(XMAC_ALT_ADDR2(index), reg2); |
| 2680 | } else { |
| 2681 | nw64_mac(BMAC_ALT_ADDR0(index), reg0); |
| 2682 | nw64_mac(BMAC_ALT_ADDR1(index), reg1); |
| 2683 | nw64_mac(BMAC_ALT_ADDR2(index), reg2); |
| 2684 | } |
| 2685 | |
| 2686 | return 0; |
| 2687 | } |
| 2688 | |
| 2689 | static int niu_enable_alt_mac(struct niu *np, int index, int on) |
| 2690 | { |
| 2691 | unsigned long reg; |
| 2692 | u64 val, mask; |
| 2693 | |
| 2694 | if (index >= niu_num_alt_addr(np)) |
| 2695 | return -EINVAL; |
| 2696 | |
Matheos Worku | fa90789 | 2008-02-20 00:18:09 -0800 | [diff] [blame] | 2697 | if (np->flags & NIU_FLAGS_XMAC) { |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2698 | reg = XMAC_ADDR_CMPEN; |
Matheos Worku | fa90789 | 2008-02-20 00:18:09 -0800 | [diff] [blame] | 2699 | mask = 1 << index; |
| 2700 | } else { |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2701 | reg = BMAC_ADDR_CMPEN; |
Matheos Worku | fa90789 | 2008-02-20 00:18:09 -0800 | [diff] [blame] | 2702 | mask = 1 << (index + 1); |
| 2703 | } |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2704 | |
| 2705 | val = nr64_mac(reg); |
| 2706 | if (on) |
| 2707 | val |= mask; |
| 2708 | else |
| 2709 | val &= ~mask; |
| 2710 | nw64_mac(reg, val); |
| 2711 | |
| 2712 | return 0; |
| 2713 | } |
| 2714 | |
| 2715 | static void __set_rdc_table_num_hw(struct niu *np, unsigned long reg, |
| 2716 | int num, int mac_pref) |
| 2717 | { |
| 2718 | u64 val = nr64_mac(reg); |
| 2719 | val &= ~(HOST_INFO_MACRDCTBLN | HOST_INFO_MPR); |
| 2720 | val |= num; |
| 2721 | if (mac_pref) |
| 2722 | val |= HOST_INFO_MPR; |
| 2723 | nw64_mac(reg, val); |
| 2724 | } |
| 2725 | |
| 2726 | static int __set_rdc_table_num(struct niu *np, |
| 2727 | int xmac_index, int bmac_index, |
| 2728 | int rdc_table_num, int mac_pref) |
| 2729 | { |
| 2730 | unsigned long reg; |
| 2731 | |
| 2732 | if (rdc_table_num & ~HOST_INFO_MACRDCTBLN) |
| 2733 | return -EINVAL; |
| 2734 | if (np->flags & NIU_FLAGS_XMAC) |
| 2735 | reg = XMAC_HOST_INFO(xmac_index); |
| 2736 | else |
| 2737 | reg = BMAC_HOST_INFO(bmac_index); |
| 2738 | __set_rdc_table_num_hw(np, reg, rdc_table_num, mac_pref); |
| 2739 | return 0; |
| 2740 | } |
| 2741 | |
| 2742 | static int niu_set_primary_mac_rdc_table(struct niu *np, int table_num, |
| 2743 | int mac_pref) |
| 2744 | { |
| 2745 | return __set_rdc_table_num(np, 17, 0, table_num, mac_pref); |
| 2746 | } |
| 2747 | |
| 2748 | static int niu_set_multicast_mac_rdc_table(struct niu *np, int table_num, |
| 2749 | int mac_pref) |
| 2750 | { |
| 2751 | return __set_rdc_table_num(np, 16, 8, table_num, mac_pref); |
| 2752 | } |
| 2753 | |
| 2754 | static int niu_set_alt_mac_rdc_table(struct niu *np, int idx, |
| 2755 | int table_num, int mac_pref) |
| 2756 | { |
| 2757 | if (idx >= niu_num_alt_addr(np)) |
| 2758 | return -EINVAL; |
| 2759 | return __set_rdc_table_num(np, idx, idx + 1, table_num, mac_pref); |
| 2760 | } |
| 2761 | |
| 2762 | static u64 vlan_entry_set_parity(u64 reg_val) |
| 2763 | { |
| 2764 | u64 port01_mask; |
| 2765 | u64 port23_mask; |
| 2766 | |
| 2767 | port01_mask = 0x00ff; |
| 2768 | port23_mask = 0xff00; |
| 2769 | |
| 2770 | if (hweight64(reg_val & port01_mask) & 1) |
| 2771 | reg_val |= ENET_VLAN_TBL_PARITY0; |
| 2772 | else |
| 2773 | reg_val &= ~ENET_VLAN_TBL_PARITY0; |
| 2774 | |
| 2775 | if (hweight64(reg_val & port23_mask) & 1) |
| 2776 | reg_val |= ENET_VLAN_TBL_PARITY1; |
| 2777 | else |
| 2778 | reg_val &= ~ENET_VLAN_TBL_PARITY1; |
| 2779 | |
| 2780 | return reg_val; |
| 2781 | } |
| 2782 | |
| 2783 | static void vlan_tbl_write(struct niu *np, unsigned long index, |
| 2784 | int port, int vpr, int rdc_table) |
| 2785 | { |
| 2786 | u64 reg_val = nr64(ENET_VLAN_TBL(index)); |
| 2787 | |
| 2788 | reg_val &= ~((ENET_VLAN_TBL_VPR | |
| 2789 | ENET_VLAN_TBL_VLANRDCTBLN) << |
| 2790 | ENET_VLAN_TBL_SHIFT(port)); |
| 2791 | if (vpr) |
| 2792 | reg_val |= (ENET_VLAN_TBL_VPR << |
| 2793 | ENET_VLAN_TBL_SHIFT(port)); |
| 2794 | reg_val |= (rdc_table << ENET_VLAN_TBL_SHIFT(port)); |
| 2795 | |
| 2796 | reg_val = vlan_entry_set_parity(reg_val); |
| 2797 | |
| 2798 | nw64(ENET_VLAN_TBL(index), reg_val); |
| 2799 | } |
| 2800 | |
| 2801 | static void vlan_tbl_clear(struct niu *np) |
| 2802 | { |
| 2803 | int i; |
| 2804 | |
| 2805 | for (i = 0; i < ENET_VLAN_TBL_NUM_ENTRIES; i++) |
| 2806 | nw64(ENET_VLAN_TBL(i), 0); |
| 2807 | } |
| 2808 | |
| 2809 | static int tcam_wait_bit(struct niu *np, u64 bit) |
| 2810 | { |
| 2811 | int limit = 1000; |
| 2812 | |
| 2813 | while (--limit > 0) { |
| 2814 | if (nr64(TCAM_CTL) & bit) |
| 2815 | break; |
| 2816 | udelay(1); |
| 2817 | } |
roel kluin | d2a928e | 2009-12-27 04:10:59 +0000 | [diff] [blame] | 2818 | if (limit <= 0) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2819 | return -ENODEV; |
| 2820 | |
| 2821 | return 0; |
| 2822 | } |
| 2823 | |
| 2824 | static int tcam_flush(struct niu *np, int index) |
| 2825 | { |
| 2826 | nw64(TCAM_KEY_0, 0x00); |
| 2827 | nw64(TCAM_KEY_MASK_0, 0xff); |
| 2828 | nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_WRITE | index)); |
| 2829 | |
| 2830 | return tcam_wait_bit(np, TCAM_CTL_STAT); |
| 2831 | } |
| 2832 | |
| 2833 | #if 0 |
| 2834 | static int tcam_read(struct niu *np, int index, |
| 2835 | u64 *key, u64 *mask) |
| 2836 | { |
| 2837 | int err; |
| 2838 | |
| 2839 | nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_READ | index)); |
| 2840 | err = tcam_wait_bit(np, TCAM_CTL_STAT); |
| 2841 | if (!err) { |
| 2842 | key[0] = nr64(TCAM_KEY_0); |
| 2843 | key[1] = nr64(TCAM_KEY_1); |
| 2844 | key[2] = nr64(TCAM_KEY_2); |
| 2845 | key[3] = nr64(TCAM_KEY_3); |
| 2846 | mask[0] = nr64(TCAM_KEY_MASK_0); |
| 2847 | mask[1] = nr64(TCAM_KEY_MASK_1); |
| 2848 | mask[2] = nr64(TCAM_KEY_MASK_2); |
| 2849 | mask[3] = nr64(TCAM_KEY_MASK_3); |
| 2850 | } |
| 2851 | return err; |
| 2852 | } |
| 2853 | #endif |
| 2854 | |
| 2855 | static int tcam_write(struct niu *np, int index, |
| 2856 | u64 *key, u64 *mask) |
| 2857 | { |
| 2858 | nw64(TCAM_KEY_0, key[0]); |
| 2859 | nw64(TCAM_KEY_1, key[1]); |
| 2860 | nw64(TCAM_KEY_2, key[2]); |
| 2861 | nw64(TCAM_KEY_3, key[3]); |
| 2862 | nw64(TCAM_KEY_MASK_0, mask[0]); |
| 2863 | nw64(TCAM_KEY_MASK_1, mask[1]); |
| 2864 | nw64(TCAM_KEY_MASK_2, mask[2]); |
| 2865 | nw64(TCAM_KEY_MASK_3, mask[3]); |
| 2866 | nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_WRITE | index)); |
| 2867 | |
| 2868 | return tcam_wait_bit(np, TCAM_CTL_STAT); |
| 2869 | } |
| 2870 | |
| 2871 | #if 0 |
| 2872 | static int tcam_assoc_read(struct niu *np, int index, u64 *data) |
| 2873 | { |
| 2874 | int err; |
| 2875 | |
| 2876 | nw64(TCAM_CTL, (TCAM_CTL_RWC_RAM_READ | index)); |
| 2877 | err = tcam_wait_bit(np, TCAM_CTL_STAT); |
| 2878 | if (!err) |
| 2879 | *data = nr64(TCAM_KEY_1); |
| 2880 | |
| 2881 | return err; |
| 2882 | } |
| 2883 | #endif |
| 2884 | |
| 2885 | static int tcam_assoc_write(struct niu *np, int index, u64 assoc_data) |
| 2886 | { |
| 2887 | nw64(TCAM_KEY_1, assoc_data); |
| 2888 | nw64(TCAM_CTL, (TCAM_CTL_RWC_RAM_WRITE | index)); |
| 2889 | |
| 2890 | return tcam_wait_bit(np, TCAM_CTL_STAT); |
| 2891 | } |
| 2892 | |
| 2893 | static void tcam_enable(struct niu *np, int on) |
| 2894 | { |
| 2895 | u64 val = nr64(FFLP_CFG_1); |
| 2896 | |
| 2897 | if (on) |
| 2898 | val &= ~FFLP_CFG_1_TCAM_DIS; |
| 2899 | else |
| 2900 | val |= FFLP_CFG_1_TCAM_DIS; |
| 2901 | nw64(FFLP_CFG_1, val); |
| 2902 | } |
| 2903 | |
| 2904 | static void tcam_set_lat_and_ratio(struct niu *np, u64 latency, u64 ratio) |
| 2905 | { |
| 2906 | u64 val = nr64(FFLP_CFG_1); |
| 2907 | |
| 2908 | val &= ~(FFLP_CFG_1_FFLPINITDONE | |
| 2909 | FFLP_CFG_1_CAMLAT | |
| 2910 | FFLP_CFG_1_CAMRATIO); |
| 2911 | val |= (latency << FFLP_CFG_1_CAMLAT_SHIFT); |
| 2912 | val |= (ratio << FFLP_CFG_1_CAMRATIO_SHIFT); |
| 2913 | nw64(FFLP_CFG_1, val); |
| 2914 | |
| 2915 | val = nr64(FFLP_CFG_1); |
| 2916 | val |= FFLP_CFG_1_FFLPINITDONE; |
| 2917 | nw64(FFLP_CFG_1, val); |
| 2918 | } |
| 2919 | |
| 2920 | static int tcam_user_eth_class_enable(struct niu *np, unsigned long class, |
| 2921 | int on) |
| 2922 | { |
| 2923 | unsigned long reg; |
| 2924 | u64 val; |
| 2925 | |
| 2926 | if (class < CLASS_CODE_ETHERTYPE1 || |
| 2927 | class > CLASS_CODE_ETHERTYPE2) |
| 2928 | return -EINVAL; |
| 2929 | |
| 2930 | reg = L2_CLS(class - CLASS_CODE_ETHERTYPE1); |
| 2931 | val = nr64(reg); |
| 2932 | if (on) |
| 2933 | val |= L2_CLS_VLD; |
| 2934 | else |
| 2935 | val &= ~L2_CLS_VLD; |
| 2936 | nw64(reg, val); |
| 2937 | |
| 2938 | return 0; |
| 2939 | } |
| 2940 | |
| 2941 | #if 0 |
| 2942 | static int tcam_user_eth_class_set(struct niu *np, unsigned long class, |
| 2943 | u64 ether_type) |
| 2944 | { |
| 2945 | unsigned long reg; |
| 2946 | u64 val; |
| 2947 | |
| 2948 | if (class < CLASS_CODE_ETHERTYPE1 || |
| 2949 | class > CLASS_CODE_ETHERTYPE2 || |
| 2950 | (ether_type & ~(u64)0xffff) != 0) |
| 2951 | return -EINVAL; |
| 2952 | |
| 2953 | reg = L2_CLS(class - CLASS_CODE_ETHERTYPE1); |
| 2954 | val = nr64(reg); |
| 2955 | val &= ~L2_CLS_ETYPE; |
| 2956 | val |= (ether_type << L2_CLS_ETYPE_SHIFT); |
| 2957 | nw64(reg, val); |
| 2958 | |
| 2959 | return 0; |
| 2960 | } |
| 2961 | #endif |
| 2962 | |
| 2963 | static int tcam_user_ip_class_enable(struct niu *np, unsigned long class, |
| 2964 | int on) |
| 2965 | { |
| 2966 | unsigned long reg; |
| 2967 | u64 val; |
| 2968 | |
| 2969 | if (class < CLASS_CODE_USER_PROG1 || |
| 2970 | class > CLASS_CODE_USER_PROG4) |
| 2971 | return -EINVAL; |
| 2972 | |
| 2973 | reg = L3_CLS(class - CLASS_CODE_USER_PROG1); |
| 2974 | val = nr64(reg); |
| 2975 | if (on) |
| 2976 | val |= L3_CLS_VALID; |
| 2977 | else |
| 2978 | val &= ~L3_CLS_VALID; |
| 2979 | nw64(reg, val); |
| 2980 | |
| 2981 | return 0; |
| 2982 | } |
| 2983 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 2984 | static int tcam_user_ip_class_set(struct niu *np, unsigned long class, |
| 2985 | int ipv6, u64 protocol_id, |
| 2986 | u64 tos_mask, u64 tos_val) |
| 2987 | { |
| 2988 | unsigned long reg; |
| 2989 | u64 val; |
| 2990 | |
| 2991 | if (class < CLASS_CODE_USER_PROG1 || |
| 2992 | class > CLASS_CODE_USER_PROG4 || |
| 2993 | (protocol_id & ~(u64)0xff) != 0 || |
| 2994 | (tos_mask & ~(u64)0xff) != 0 || |
| 2995 | (tos_val & ~(u64)0xff) != 0) |
| 2996 | return -EINVAL; |
| 2997 | |
| 2998 | reg = L3_CLS(class - CLASS_CODE_USER_PROG1); |
| 2999 | val = nr64(reg); |
| 3000 | val &= ~(L3_CLS_IPVER | L3_CLS_PID | |
| 3001 | L3_CLS_TOSMASK | L3_CLS_TOS); |
| 3002 | if (ipv6) |
| 3003 | val |= L3_CLS_IPVER; |
| 3004 | val |= (protocol_id << L3_CLS_PID_SHIFT); |
| 3005 | val |= (tos_mask << L3_CLS_TOSMASK_SHIFT); |
| 3006 | val |= (tos_val << L3_CLS_TOS_SHIFT); |
| 3007 | nw64(reg, val); |
| 3008 | |
| 3009 | return 0; |
| 3010 | } |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3011 | |
| 3012 | static int tcam_early_init(struct niu *np) |
| 3013 | { |
| 3014 | unsigned long i; |
| 3015 | int err; |
| 3016 | |
| 3017 | tcam_enable(np, 0); |
| 3018 | tcam_set_lat_and_ratio(np, |
| 3019 | DEFAULT_TCAM_LATENCY, |
| 3020 | DEFAULT_TCAM_ACCESS_RATIO); |
| 3021 | for (i = CLASS_CODE_ETHERTYPE1; i <= CLASS_CODE_ETHERTYPE2; i++) { |
| 3022 | err = tcam_user_eth_class_enable(np, i, 0); |
| 3023 | if (err) |
| 3024 | return err; |
| 3025 | } |
| 3026 | for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_USER_PROG4; i++) { |
| 3027 | err = tcam_user_ip_class_enable(np, i, 0); |
| 3028 | if (err) |
| 3029 | return err; |
| 3030 | } |
| 3031 | |
| 3032 | return 0; |
| 3033 | } |
| 3034 | |
| 3035 | static int tcam_flush_all(struct niu *np) |
| 3036 | { |
| 3037 | unsigned long i; |
| 3038 | |
| 3039 | for (i = 0; i < np->parent->tcam_num_entries; i++) { |
| 3040 | int err = tcam_flush(np, i); |
| 3041 | if (err) |
| 3042 | return err; |
| 3043 | } |
| 3044 | return 0; |
| 3045 | } |
| 3046 | |
| 3047 | static u64 hash_addr_regval(unsigned long index, unsigned long num_entries) |
| 3048 | { |
| 3049 | return ((u64)index | (num_entries == 1 ? |
| 3050 | HASH_TBL_ADDR_AUTOINC : 0)); |
| 3051 | } |
| 3052 | |
| 3053 | #if 0 |
| 3054 | static int hash_read(struct niu *np, unsigned long partition, |
| 3055 | unsigned long index, unsigned long num_entries, |
| 3056 | u64 *data) |
| 3057 | { |
| 3058 | u64 val = hash_addr_regval(index, num_entries); |
| 3059 | unsigned long i; |
| 3060 | |
| 3061 | if (partition >= FCRAM_NUM_PARTITIONS || |
| 3062 | index + num_entries > FCRAM_SIZE) |
| 3063 | return -EINVAL; |
| 3064 | |
| 3065 | nw64(HASH_TBL_ADDR(partition), val); |
| 3066 | for (i = 0; i < num_entries; i++) |
| 3067 | data[i] = nr64(HASH_TBL_DATA(partition)); |
| 3068 | |
| 3069 | return 0; |
| 3070 | } |
| 3071 | #endif |
| 3072 | |
| 3073 | static int hash_write(struct niu *np, unsigned long partition, |
| 3074 | unsigned long index, unsigned long num_entries, |
| 3075 | u64 *data) |
| 3076 | { |
| 3077 | u64 val = hash_addr_regval(index, num_entries); |
| 3078 | unsigned long i; |
| 3079 | |
| 3080 | if (partition >= FCRAM_NUM_PARTITIONS || |
| 3081 | index + (num_entries * 8) > FCRAM_SIZE) |
| 3082 | return -EINVAL; |
| 3083 | |
| 3084 | nw64(HASH_TBL_ADDR(partition), val); |
| 3085 | for (i = 0; i < num_entries; i++) |
| 3086 | nw64(HASH_TBL_DATA(partition), data[i]); |
| 3087 | |
| 3088 | return 0; |
| 3089 | } |
| 3090 | |
| 3091 | static void fflp_reset(struct niu *np) |
| 3092 | { |
| 3093 | u64 val; |
| 3094 | |
| 3095 | nw64(FFLP_CFG_1, FFLP_CFG_1_PIO_FIO_RST); |
| 3096 | udelay(10); |
| 3097 | nw64(FFLP_CFG_1, 0); |
| 3098 | |
| 3099 | val = FFLP_CFG_1_FCRAMOUTDR_NORMAL | FFLP_CFG_1_FFLPINITDONE; |
| 3100 | nw64(FFLP_CFG_1, val); |
| 3101 | } |
| 3102 | |
| 3103 | static void fflp_set_timings(struct niu *np) |
| 3104 | { |
| 3105 | u64 val = nr64(FFLP_CFG_1); |
| 3106 | |
| 3107 | val &= ~FFLP_CFG_1_FFLPINITDONE; |
| 3108 | val |= (DEFAULT_FCRAMRATIO << FFLP_CFG_1_FCRAMRATIO_SHIFT); |
| 3109 | nw64(FFLP_CFG_1, val); |
| 3110 | |
| 3111 | val = nr64(FFLP_CFG_1); |
| 3112 | val |= FFLP_CFG_1_FFLPINITDONE; |
| 3113 | nw64(FFLP_CFG_1, val); |
| 3114 | |
| 3115 | val = nr64(FCRAM_REF_TMR); |
| 3116 | val &= ~(FCRAM_REF_TMR_MAX | FCRAM_REF_TMR_MIN); |
| 3117 | val |= (DEFAULT_FCRAM_REFRESH_MAX << FCRAM_REF_TMR_MAX_SHIFT); |
| 3118 | val |= (DEFAULT_FCRAM_REFRESH_MIN << FCRAM_REF_TMR_MIN_SHIFT); |
| 3119 | nw64(FCRAM_REF_TMR, val); |
| 3120 | } |
| 3121 | |
| 3122 | static int fflp_set_partition(struct niu *np, u64 partition, |
| 3123 | u64 mask, u64 base, int enable) |
| 3124 | { |
| 3125 | unsigned long reg; |
| 3126 | u64 val; |
| 3127 | |
| 3128 | if (partition >= FCRAM_NUM_PARTITIONS || |
| 3129 | (mask & ~(u64)0x1f) != 0 || |
| 3130 | (base & ~(u64)0x1f) != 0) |
| 3131 | return -EINVAL; |
| 3132 | |
| 3133 | reg = FLW_PRT_SEL(partition); |
| 3134 | |
| 3135 | val = nr64(reg); |
| 3136 | val &= ~(FLW_PRT_SEL_EXT | FLW_PRT_SEL_MASK | FLW_PRT_SEL_BASE); |
| 3137 | val |= (mask << FLW_PRT_SEL_MASK_SHIFT); |
| 3138 | val |= (base << FLW_PRT_SEL_BASE_SHIFT); |
| 3139 | if (enable) |
| 3140 | val |= FLW_PRT_SEL_EXT; |
| 3141 | nw64(reg, val); |
| 3142 | |
| 3143 | return 0; |
| 3144 | } |
| 3145 | |
| 3146 | static int fflp_disable_all_partitions(struct niu *np) |
| 3147 | { |
| 3148 | unsigned long i; |
| 3149 | |
| 3150 | for (i = 0; i < FCRAM_NUM_PARTITIONS; i++) { |
| 3151 | int err = fflp_set_partition(np, 0, 0, 0, 0); |
| 3152 | if (err) |
| 3153 | return err; |
| 3154 | } |
| 3155 | return 0; |
| 3156 | } |
| 3157 | |
| 3158 | static void fflp_llcsnap_enable(struct niu *np, int on) |
| 3159 | { |
| 3160 | u64 val = nr64(FFLP_CFG_1); |
| 3161 | |
| 3162 | if (on) |
| 3163 | val |= FFLP_CFG_1_LLCSNAP; |
| 3164 | else |
| 3165 | val &= ~FFLP_CFG_1_LLCSNAP; |
| 3166 | nw64(FFLP_CFG_1, val); |
| 3167 | } |
| 3168 | |
| 3169 | static void fflp_errors_enable(struct niu *np, int on) |
| 3170 | { |
| 3171 | u64 val = nr64(FFLP_CFG_1); |
| 3172 | |
| 3173 | if (on) |
| 3174 | val &= ~FFLP_CFG_1_ERRORDIS; |
| 3175 | else |
| 3176 | val |= FFLP_CFG_1_ERRORDIS; |
| 3177 | nw64(FFLP_CFG_1, val); |
| 3178 | } |
| 3179 | |
| 3180 | static int fflp_hash_clear(struct niu *np) |
| 3181 | { |
| 3182 | struct fcram_hash_ipv4 ent; |
| 3183 | unsigned long i; |
| 3184 | |
| 3185 | /* IPV4 hash entry with valid bit clear, rest is don't care. */ |
| 3186 | memset(&ent, 0, sizeof(ent)); |
| 3187 | ent.header = HASH_HEADER_EXT; |
| 3188 | |
| 3189 | for (i = 0; i < FCRAM_SIZE; i += sizeof(ent)) { |
| 3190 | int err = hash_write(np, 0, i, 1, (u64 *) &ent); |
| 3191 | if (err) |
| 3192 | return err; |
| 3193 | } |
| 3194 | return 0; |
| 3195 | } |
| 3196 | |
| 3197 | static int fflp_early_init(struct niu *np) |
| 3198 | { |
| 3199 | struct niu_parent *parent; |
| 3200 | unsigned long flags; |
| 3201 | int err; |
| 3202 | |
| 3203 | niu_lock_parent(np, flags); |
| 3204 | |
| 3205 | parent = np->parent; |
| 3206 | err = 0; |
| 3207 | if (!(parent->flags & PARENT_FLGS_CLS_HWINIT)) { |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3208 | if (np->parent->plat_type != PLAT_TYPE_NIU) { |
| 3209 | fflp_reset(np); |
| 3210 | fflp_set_timings(np); |
| 3211 | err = fflp_disable_all_partitions(np); |
| 3212 | if (err) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3213 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
| 3214 | "fflp_disable_all_partitions failed, err=%d\n", |
| 3215 | err); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3216 | goto out; |
| 3217 | } |
| 3218 | } |
| 3219 | |
| 3220 | err = tcam_early_init(np); |
| 3221 | if (err) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3222 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
| 3223 | "tcam_early_init failed, err=%d\n", err); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3224 | goto out; |
| 3225 | } |
| 3226 | fflp_llcsnap_enable(np, 1); |
| 3227 | fflp_errors_enable(np, 0); |
| 3228 | nw64(H1POLY, 0); |
| 3229 | nw64(H2POLY, 0); |
| 3230 | |
| 3231 | err = tcam_flush_all(np); |
| 3232 | if (err) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3233 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
| 3234 | "tcam_flush_all failed, err=%d\n", err); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3235 | goto out; |
| 3236 | } |
| 3237 | if (np->parent->plat_type != PLAT_TYPE_NIU) { |
| 3238 | err = fflp_hash_clear(np); |
| 3239 | if (err) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3240 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
| 3241 | "fflp_hash_clear failed, err=%d\n", |
| 3242 | err); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3243 | goto out; |
| 3244 | } |
| 3245 | } |
| 3246 | |
| 3247 | vlan_tbl_clear(np); |
| 3248 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3249 | parent->flags |= PARENT_FLGS_CLS_HWINIT; |
| 3250 | } |
| 3251 | out: |
| 3252 | niu_unlock_parent(np, flags); |
| 3253 | return err; |
| 3254 | } |
| 3255 | |
| 3256 | static int niu_set_flow_key(struct niu *np, unsigned long class_code, u64 key) |
| 3257 | { |
| 3258 | if (class_code < CLASS_CODE_USER_PROG1 || |
| 3259 | class_code > CLASS_CODE_SCTP_IPV6) |
| 3260 | return -EINVAL; |
| 3261 | |
| 3262 | nw64(FLOW_KEY(class_code - CLASS_CODE_USER_PROG1), key); |
| 3263 | return 0; |
| 3264 | } |
| 3265 | |
| 3266 | static int niu_set_tcam_key(struct niu *np, unsigned long class_code, u64 key) |
| 3267 | { |
| 3268 | if (class_code < CLASS_CODE_USER_PROG1 || |
| 3269 | class_code > CLASS_CODE_SCTP_IPV6) |
| 3270 | return -EINVAL; |
| 3271 | |
| 3272 | nw64(TCAM_KEY(class_code - CLASS_CODE_USER_PROG1), key); |
| 3273 | return 0; |
| 3274 | } |
| 3275 | |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 3276 | /* Entries for the ports are interleaved in the TCAM */ |
| 3277 | static u16 tcam_get_index(struct niu *np, u16 idx) |
| 3278 | { |
| 3279 | /* One entry reserved for IP fragment rule */ |
| 3280 | if (idx >= (np->clas.tcam_sz - 1)) |
| 3281 | idx = 0; |
| 3282 | return (np->clas.tcam_top + ((idx+1) * np->parent->num_ports)); |
| 3283 | } |
| 3284 | |
| 3285 | static u16 tcam_get_size(struct niu *np) |
| 3286 | { |
| 3287 | /* One entry reserved for IP fragment rule */ |
| 3288 | return np->clas.tcam_sz - 1; |
| 3289 | } |
| 3290 | |
| 3291 | static u16 tcam_get_valid_entry_cnt(struct niu *np) |
| 3292 | { |
| 3293 | /* One entry reserved for IP fragment rule */ |
| 3294 | return np->clas.tcam_valid_entries - 1; |
| 3295 | } |
| 3296 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3297 | static void niu_rx_skb_append(struct sk_buff *skb, struct page *page, |
| 3298 | u32 offset, u32 size) |
| 3299 | { |
| 3300 | int i = skb_shinfo(skb)->nr_frags; |
| 3301 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; |
| 3302 | |
| 3303 | frag->page = page; |
| 3304 | frag->page_offset = offset; |
| 3305 | frag->size = size; |
| 3306 | |
| 3307 | skb->len += size; |
| 3308 | skb->data_len += size; |
| 3309 | skb->truesize += size; |
| 3310 | |
| 3311 | skb_shinfo(skb)->nr_frags = i + 1; |
| 3312 | } |
| 3313 | |
| 3314 | static unsigned int niu_hash_rxaddr(struct rx_ring_info *rp, u64 a) |
| 3315 | { |
| 3316 | a >>= PAGE_SHIFT; |
| 3317 | a ^= (a >> ilog2(MAX_RBR_RING_SIZE)); |
| 3318 | |
| 3319 | return (a & (MAX_RBR_RING_SIZE - 1)); |
| 3320 | } |
| 3321 | |
| 3322 | static struct page *niu_find_rxpage(struct rx_ring_info *rp, u64 addr, |
| 3323 | struct page ***link) |
| 3324 | { |
| 3325 | unsigned int h = niu_hash_rxaddr(rp, addr); |
| 3326 | struct page *p, **pp; |
| 3327 | |
| 3328 | addr &= PAGE_MASK; |
| 3329 | pp = &rp->rxhash[h]; |
| 3330 | for (; (p = *pp) != NULL; pp = (struct page **) &p->mapping) { |
| 3331 | if (p->index == addr) { |
| 3332 | *link = pp; |
| 3333 | break; |
| 3334 | } |
| 3335 | } |
| 3336 | |
| 3337 | return p; |
| 3338 | } |
| 3339 | |
| 3340 | static void niu_hash_page(struct rx_ring_info *rp, struct page *page, u64 base) |
| 3341 | { |
| 3342 | unsigned int h = niu_hash_rxaddr(rp, base); |
| 3343 | |
| 3344 | page->index = base; |
| 3345 | page->mapping = (struct address_space *) rp->rxhash[h]; |
| 3346 | rp->rxhash[h] = page; |
| 3347 | } |
| 3348 | |
| 3349 | static int niu_rbr_add_page(struct niu *np, struct rx_ring_info *rp, |
| 3350 | gfp_t mask, int start_index) |
| 3351 | { |
| 3352 | struct page *page; |
| 3353 | u64 addr; |
| 3354 | int i; |
| 3355 | |
| 3356 | page = alloc_page(mask); |
| 3357 | if (!page) |
| 3358 | return -ENOMEM; |
| 3359 | |
| 3360 | addr = np->ops->map_page(np->device, page, 0, |
| 3361 | PAGE_SIZE, DMA_FROM_DEVICE); |
| 3362 | |
| 3363 | niu_hash_page(rp, page, addr); |
| 3364 | if (rp->rbr_blocks_per_page > 1) |
| 3365 | atomic_add(rp->rbr_blocks_per_page - 1, |
| 3366 | &compound_head(page)->_count); |
| 3367 | |
| 3368 | for (i = 0; i < rp->rbr_blocks_per_page; i++) { |
| 3369 | __le32 *rbr = &rp->rbr[start_index + i]; |
| 3370 | |
| 3371 | *rbr = cpu_to_le32(addr >> RBR_DESCR_ADDR_SHIFT); |
| 3372 | addr += rp->rbr_block_size; |
| 3373 | } |
| 3374 | |
| 3375 | return 0; |
| 3376 | } |
| 3377 | |
| 3378 | static void niu_rbr_refill(struct niu *np, struct rx_ring_info *rp, gfp_t mask) |
| 3379 | { |
| 3380 | int index = rp->rbr_index; |
| 3381 | |
| 3382 | rp->rbr_pending++; |
| 3383 | if ((rp->rbr_pending % rp->rbr_blocks_per_page) == 0) { |
| 3384 | int err = niu_rbr_add_page(np, rp, mask, index); |
| 3385 | |
| 3386 | if (unlikely(err)) { |
| 3387 | rp->rbr_pending--; |
| 3388 | return; |
| 3389 | } |
| 3390 | |
| 3391 | rp->rbr_index += rp->rbr_blocks_per_page; |
| 3392 | BUG_ON(rp->rbr_index > rp->rbr_table_size); |
| 3393 | if (rp->rbr_index == rp->rbr_table_size) |
| 3394 | rp->rbr_index = 0; |
| 3395 | |
| 3396 | if (rp->rbr_pending >= rp->rbr_kick_thresh) { |
| 3397 | nw64(RBR_KICK(rp->rx_channel), rp->rbr_pending); |
| 3398 | rp->rbr_pending = 0; |
| 3399 | } |
| 3400 | } |
| 3401 | } |
| 3402 | |
| 3403 | static int niu_rx_pkt_ignore(struct niu *np, struct rx_ring_info *rp) |
| 3404 | { |
| 3405 | unsigned int index = rp->rcr_index; |
| 3406 | int num_rcr = 0; |
| 3407 | |
| 3408 | rp->rx_dropped++; |
| 3409 | while (1) { |
| 3410 | struct page *page, **link; |
| 3411 | u64 addr, val; |
| 3412 | u32 rcr_size; |
| 3413 | |
| 3414 | num_rcr++; |
| 3415 | |
| 3416 | val = le64_to_cpup(&rp->rcr[index]); |
| 3417 | addr = (val & RCR_ENTRY_PKT_BUF_ADDR) << |
| 3418 | RCR_ENTRY_PKT_BUF_ADDR_SHIFT; |
| 3419 | page = niu_find_rxpage(rp, addr, &link); |
| 3420 | |
| 3421 | rcr_size = rp->rbr_sizes[(val & RCR_ENTRY_PKTBUFSZ) >> |
| 3422 | RCR_ENTRY_PKTBUFSZ_SHIFT]; |
| 3423 | if ((page->index + PAGE_SIZE) - rcr_size == addr) { |
| 3424 | *link = (struct page *) page->mapping; |
| 3425 | np->ops->unmap_page(np->device, page->index, |
| 3426 | PAGE_SIZE, DMA_FROM_DEVICE); |
| 3427 | page->index = 0; |
| 3428 | page->mapping = NULL; |
| 3429 | __free_page(page); |
| 3430 | rp->rbr_refill_pending++; |
| 3431 | } |
| 3432 | |
| 3433 | index = NEXT_RCR(rp, index); |
| 3434 | if (!(val & RCR_ENTRY_MULTI)) |
| 3435 | break; |
| 3436 | |
| 3437 | } |
| 3438 | rp->rcr_index = index; |
| 3439 | |
| 3440 | return num_rcr; |
| 3441 | } |
| 3442 | |
David S. Miller | 4099e01 | 2009-03-29 01:39:41 -0700 | [diff] [blame] | 3443 | static int niu_process_rx_pkt(struct napi_struct *napi, struct niu *np, |
| 3444 | struct rx_ring_info *rp) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3445 | { |
| 3446 | unsigned int index = rp->rcr_index; |
David S. Miller | 3cfa856 | 2010-04-22 15:48:17 -0700 | [diff] [blame] | 3447 | struct rx_pkt_hdr1 *rh; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3448 | struct sk_buff *skb; |
| 3449 | int len, num_rcr; |
| 3450 | |
| 3451 | skb = netdev_alloc_skb(np->dev, RX_SKB_ALLOC_SIZE); |
| 3452 | if (unlikely(!skb)) |
| 3453 | return niu_rx_pkt_ignore(np, rp); |
| 3454 | |
| 3455 | num_rcr = 0; |
| 3456 | while (1) { |
| 3457 | struct page *page, **link; |
| 3458 | u32 rcr_size, append_size; |
| 3459 | u64 addr, val, off; |
| 3460 | |
| 3461 | num_rcr++; |
| 3462 | |
| 3463 | val = le64_to_cpup(&rp->rcr[index]); |
| 3464 | |
| 3465 | len = (val & RCR_ENTRY_L2_LEN) >> |
| 3466 | RCR_ENTRY_L2_LEN_SHIFT; |
| 3467 | len -= ETH_FCS_LEN; |
| 3468 | |
| 3469 | addr = (val & RCR_ENTRY_PKT_BUF_ADDR) << |
| 3470 | RCR_ENTRY_PKT_BUF_ADDR_SHIFT; |
| 3471 | page = niu_find_rxpage(rp, addr, &link); |
| 3472 | |
| 3473 | rcr_size = rp->rbr_sizes[(val & RCR_ENTRY_PKTBUFSZ) >> |
| 3474 | RCR_ENTRY_PKTBUFSZ_SHIFT]; |
| 3475 | |
| 3476 | off = addr & ~PAGE_MASK; |
| 3477 | append_size = rcr_size; |
| 3478 | if (num_rcr == 1) { |
| 3479 | int ptype; |
| 3480 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3481 | ptype = (val >> RCR_ENTRY_PKT_TYPE_SHIFT); |
| 3482 | if ((ptype == RCR_PKT_TYPE_TCP || |
| 3483 | ptype == RCR_PKT_TYPE_UDP) && |
| 3484 | !(val & (RCR_ENTRY_NOPORT | |
| 3485 | RCR_ENTRY_ERROR))) |
| 3486 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 3487 | else |
| 3488 | skb->ip_summed = CHECKSUM_NONE; |
David S. Miller | 3cfa856 | 2010-04-22 15:48:17 -0700 | [diff] [blame] | 3489 | } else if (!(val & RCR_ENTRY_MULTI)) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3490 | append_size = len - skb->len; |
| 3491 | |
| 3492 | niu_rx_skb_append(skb, page, off, append_size); |
| 3493 | if ((page->index + rp->rbr_block_size) - rcr_size == addr) { |
| 3494 | *link = (struct page *) page->mapping; |
| 3495 | np->ops->unmap_page(np->device, page->index, |
| 3496 | PAGE_SIZE, DMA_FROM_DEVICE); |
| 3497 | page->index = 0; |
| 3498 | page->mapping = NULL; |
| 3499 | rp->rbr_refill_pending++; |
| 3500 | } else |
| 3501 | get_page(page); |
| 3502 | |
| 3503 | index = NEXT_RCR(rp, index); |
| 3504 | if (!(val & RCR_ENTRY_MULTI)) |
| 3505 | break; |
| 3506 | |
| 3507 | } |
| 3508 | rp->rcr_index = index; |
| 3509 | |
David S. Miller | 3cfa856 | 2010-04-22 15:48:17 -0700 | [diff] [blame] | 3510 | len += sizeof(*rh); |
| 3511 | len = min_t(int, len, sizeof(*rh) + VLAN_ETH_HLEN); |
| 3512 | __pskb_pull_tail(skb, len); |
| 3513 | |
| 3514 | rh = (struct rx_pkt_hdr1 *) skb->data; |
| 3515 | if (np->dev->features & NETIF_F_RXHASH) |
| 3516 | skb->rxhash = ((u32)rh->hashval2_0 << 24 | |
| 3517 | (u32)rh->hashval2_1 << 16 | |
| 3518 | (u32)rh->hashval1_1 << 8 | |
| 3519 | (u32)rh->hashval1_2 << 0); |
| 3520 | skb_pull(skb, sizeof(*rh)); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3521 | |
| 3522 | rp->rx_packets++; |
| 3523 | rp->rx_bytes += skb->len; |
| 3524 | |
| 3525 | skb->protocol = eth_type_trans(skb, np->dev); |
David S. Miller | 0c8dfc8 | 2009-01-27 16:22:32 -0800 | [diff] [blame] | 3526 | skb_record_rx_queue(skb, rp->rx_channel); |
David S. Miller | 4099e01 | 2009-03-29 01:39:41 -0700 | [diff] [blame] | 3527 | napi_gro_receive(napi, skb); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3528 | |
| 3529 | return num_rcr; |
| 3530 | } |
| 3531 | |
| 3532 | static int niu_rbr_fill(struct niu *np, struct rx_ring_info *rp, gfp_t mask) |
| 3533 | { |
| 3534 | int blocks_per_page = rp->rbr_blocks_per_page; |
| 3535 | int err, index = rp->rbr_index; |
| 3536 | |
| 3537 | err = 0; |
| 3538 | while (index < (rp->rbr_table_size - blocks_per_page)) { |
| 3539 | err = niu_rbr_add_page(np, rp, mask, index); |
| 3540 | if (err) |
| 3541 | break; |
| 3542 | |
| 3543 | index += blocks_per_page; |
| 3544 | } |
| 3545 | |
| 3546 | rp->rbr_index = index; |
| 3547 | return err; |
| 3548 | } |
| 3549 | |
| 3550 | static void niu_rbr_free(struct niu *np, struct rx_ring_info *rp) |
| 3551 | { |
| 3552 | int i; |
| 3553 | |
| 3554 | for (i = 0; i < MAX_RBR_RING_SIZE; i++) { |
| 3555 | struct page *page; |
| 3556 | |
| 3557 | page = rp->rxhash[i]; |
| 3558 | while (page) { |
| 3559 | struct page *next = (struct page *) page->mapping; |
| 3560 | u64 base = page->index; |
| 3561 | |
| 3562 | np->ops->unmap_page(np->device, base, PAGE_SIZE, |
| 3563 | DMA_FROM_DEVICE); |
| 3564 | page->index = 0; |
| 3565 | page->mapping = NULL; |
| 3566 | |
| 3567 | __free_page(page); |
| 3568 | |
| 3569 | page = next; |
| 3570 | } |
| 3571 | } |
| 3572 | |
| 3573 | for (i = 0; i < rp->rbr_table_size; i++) |
| 3574 | rp->rbr[i] = cpu_to_le32(0); |
| 3575 | rp->rbr_index = 0; |
| 3576 | } |
| 3577 | |
| 3578 | static int release_tx_packet(struct niu *np, struct tx_ring_info *rp, int idx) |
| 3579 | { |
| 3580 | struct tx_buff_info *tb = &rp->tx_buffs[idx]; |
| 3581 | struct sk_buff *skb = tb->skb; |
| 3582 | struct tx_pkt_hdr *tp; |
| 3583 | u64 tx_flags; |
| 3584 | int i, len; |
| 3585 | |
| 3586 | tp = (struct tx_pkt_hdr *) skb->data; |
| 3587 | tx_flags = le64_to_cpup(&tp->flags); |
| 3588 | |
| 3589 | rp->tx_packets++; |
| 3590 | rp->tx_bytes += (((tx_flags & TXHDR_LEN) >> TXHDR_LEN_SHIFT) - |
| 3591 | ((tx_flags & TXHDR_PAD) / 2)); |
| 3592 | |
| 3593 | len = skb_headlen(skb); |
| 3594 | np->ops->unmap_single(np->device, tb->mapping, |
| 3595 | len, DMA_TO_DEVICE); |
| 3596 | |
| 3597 | if (le64_to_cpu(rp->descr[idx]) & TX_DESC_MARK) |
| 3598 | rp->mark_pending--; |
| 3599 | |
| 3600 | tb->skb = NULL; |
| 3601 | do { |
| 3602 | idx = NEXT_TX(rp, idx); |
| 3603 | len -= MAX_TX_DESC_LEN; |
| 3604 | } while (len > 0); |
| 3605 | |
| 3606 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { |
| 3607 | tb = &rp->tx_buffs[idx]; |
| 3608 | BUG_ON(tb->skb != NULL); |
| 3609 | np->ops->unmap_page(np->device, tb->mapping, |
| 3610 | skb_shinfo(skb)->frags[i].size, |
| 3611 | DMA_TO_DEVICE); |
| 3612 | idx = NEXT_TX(rp, idx); |
| 3613 | } |
| 3614 | |
| 3615 | dev_kfree_skb(skb); |
| 3616 | |
| 3617 | return idx; |
| 3618 | } |
| 3619 | |
| 3620 | #define NIU_TX_WAKEUP_THRESH(rp) ((rp)->pending / 4) |
| 3621 | |
| 3622 | static void niu_tx_work(struct niu *np, struct tx_ring_info *rp) |
| 3623 | { |
David S. Miller | b4c2163 | 2008-07-15 03:48:19 -0700 | [diff] [blame] | 3624 | struct netdev_queue *txq; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3625 | u16 pkt_cnt, tmp; |
David S. Miller | b4c2163 | 2008-07-15 03:48:19 -0700 | [diff] [blame] | 3626 | int cons, index; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3627 | u64 cs; |
| 3628 | |
David S. Miller | b4c2163 | 2008-07-15 03:48:19 -0700 | [diff] [blame] | 3629 | index = (rp - np->tx_rings); |
| 3630 | txq = netdev_get_tx_queue(np->dev, index); |
| 3631 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3632 | cs = rp->tx_cs; |
| 3633 | if (unlikely(!(cs & (TX_CS_MK | TX_CS_MMK)))) |
| 3634 | goto out; |
| 3635 | |
| 3636 | tmp = pkt_cnt = (cs & TX_CS_PKT_CNT) >> TX_CS_PKT_CNT_SHIFT; |
| 3637 | pkt_cnt = (pkt_cnt - rp->last_pkt_cnt) & |
| 3638 | (TX_CS_PKT_CNT >> TX_CS_PKT_CNT_SHIFT); |
| 3639 | |
| 3640 | rp->last_pkt_cnt = tmp; |
| 3641 | |
| 3642 | cons = rp->cons; |
| 3643 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3644 | netif_printk(np, tx_done, KERN_DEBUG, np->dev, |
| 3645 | "%s() pkt_cnt[%u] cons[%d]\n", __func__, pkt_cnt, cons); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3646 | |
| 3647 | while (pkt_cnt--) |
| 3648 | cons = release_tx_packet(np, rp, cons); |
| 3649 | |
| 3650 | rp->cons = cons; |
| 3651 | smp_mb(); |
| 3652 | |
| 3653 | out: |
David S. Miller | b4c2163 | 2008-07-15 03:48:19 -0700 | [diff] [blame] | 3654 | if (unlikely(netif_tx_queue_stopped(txq) && |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3655 | (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp)))) { |
David S. Miller | b4c2163 | 2008-07-15 03:48:19 -0700 | [diff] [blame] | 3656 | __netif_tx_lock(txq, smp_processor_id()); |
| 3657 | if (netif_tx_queue_stopped(txq) && |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3658 | (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp))) |
David S. Miller | b4c2163 | 2008-07-15 03:48:19 -0700 | [diff] [blame] | 3659 | netif_tx_wake_queue(txq); |
| 3660 | __netif_tx_unlock(txq); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3661 | } |
| 3662 | } |
| 3663 | |
Jesper Dangaard Brouer | b8a606b | 2008-12-18 19:50:49 -0800 | [diff] [blame] | 3664 | static inline void niu_sync_rx_discard_stats(struct niu *np, |
| 3665 | struct rx_ring_info *rp, |
| 3666 | const int limit) |
| 3667 | { |
| 3668 | /* This elaborate scheme is needed for reading the RX discard |
| 3669 | * counters, as they are only 16-bit and can overflow quickly, |
| 3670 | * and because the overflow indication bit is not usable as |
| 3671 | * the counter value does not wrap, but remains at max value |
| 3672 | * 0xFFFF. |
| 3673 | * |
| 3674 | * In theory and in practice counters can be lost in between |
| 3675 | * reading nr64() and clearing the counter nw64(). For this |
| 3676 | * reason, the number of counter clearings nw64() is |
| 3677 | * limited/reduced though the limit parameter. |
| 3678 | */ |
| 3679 | int rx_channel = rp->rx_channel; |
| 3680 | u32 misc, wred; |
| 3681 | |
| 3682 | /* RXMISC (Receive Miscellaneous Discard Count), covers the |
| 3683 | * following discard events: IPP (Input Port Process), |
| 3684 | * FFLP/TCAM, Full RCR (Receive Completion Ring) RBR (Receive |
| 3685 | * Block Ring) prefetch buffer is empty. |
| 3686 | */ |
| 3687 | misc = nr64(RXMISC(rx_channel)); |
| 3688 | if (unlikely((misc & RXMISC_COUNT) > limit)) { |
| 3689 | nw64(RXMISC(rx_channel), 0); |
| 3690 | rp->rx_errors += misc & RXMISC_COUNT; |
| 3691 | |
| 3692 | if (unlikely(misc & RXMISC_OFLOW)) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3693 | dev_err(np->device, "rx-%d: Counter overflow RXMISC discard\n", |
| 3694 | rx_channel); |
Jesper Dangaard Brouer | d231776 | 2008-12-18 19:51:26 -0800 | [diff] [blame] | 3695 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3696 | netif_printk(np, rx_err, KERN_DEBUG, np->dev, |
| 3697 | "rx-%d: MISC drop=%u over=%u\n", |
| 3698 | rx_channel, misc, misc-limit); |
Jesper Dangaard Brouer | b8a606b | 2008-12-18 19:50:49 -0800 | [diff] [blame] | 3699 | } |
| 3700 | |
| 3701 | /* WRED (Weighted Random Early Discard) by hardware */ |
| 3702 | wred = nr64(RED_DIS_CNT(rx_channel)); |
| 3703 | if (unlikely((wred & RED_DIS_CNT_COUNT) > limit)) { |
| 3704 | nw64(RED_DIS_CNT(rx_channel), 0); |
| 3705 | rp->rx_dropped += wred & RED_DIS_CNT_COUNT; |
| 3706 | |
| 3707 | if (unlikely(wred & RED_DIS_CNT_OFLOW)) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3708 | dev_err(np->device, "rx-%d: Counter overflow WRED discard\n", rx_channel); |
Jesper Dangaard Brouer | d231776 | 2008-12-18 19:51:26 -0800 | [diff] [blame] | 3709 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3710 | netif_printk(np, rx_err, KERN_DEBUG, np->dev, |
| 3711 | "rx-%d: WRED drop=%u over=%u\n", |
| 3712 | rx_channel, wred, wred-limit); |
Jesper Dangaard Brouer | b8a606b | 2008-12-18 19:50:49 -0800 | [diff] [blame] | 3713 | } |
| 3714 | } |
| 3715 | |
David S. Miller | 4099e01 | 2009-03-29 01:39:41 -0700 | [diff] [blame] | 3716 | static int niu_rx_work(struct napi_struct *napi, struct niu *np, |
| 3717 | struct rx_ring_info *rp, int budget) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3718 | { |
| 3719 | int qlen, rcr_done = 0, work_done = 0; |
| 3720 | struct rxdma_mailbox *mbox = rp->mbox; |
| 3721 | u64 stat; |
| 3722 | |
| 3723 | #if 1 |
| 3724 | stat = nr64(RX_DMA_CTL_STAT(rp->rx_channel)); |
| 3725 | qlen = nr64(RCRSTAT_A(rp->rx_channel)) & RCRSTAT_A_QLEN; |
| 3726 | #else |
| 3727 | stat = le64_to_cpup(&mbox->rx_dma_ctl_stat); |
| 3728 | qlen = (le64_to_cpup(&mbox->rcrstat_a) & RCRSTAT_A_QLEN); |
| 3729 | #endif |
| 3730 | mbox->rx_dma_ctl_stat = 0; |
| 3731 | mbox->rcrstat_a = 0; |
| 3732 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3733 | netif_printk(np, rx_status, KERN_DEBUG, np->dev, |
| 3734 | "%s(chan[%d]), stat[%llx] qlen=%d\n", |
| 3735 | __func__, rp->rx_channel, (unsigned long long)stat, qlen); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3736 | |
| 3737 | rcr_done = work_done = 0; |
| 3738 | qlen = min(qlen, budget); |
| 3739 | while (work_done < qlen) { |
David S. Miller | 4099e01 | 2009-03-29 01:39:41 -0700 | [diff] [blame] | 3740 | rcr_done += niu_process_rx_pkt(napi, np, rp); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3741 | work_done++; |
| 3742 | } |
| 3743 | |
| 3744 | if (rp->rbr_refill_pending >= rp->rbr_kick_thresh) { |
| 3745 | unsigned int i; |
| 3746 | |
| 3747 | for (i = 0; i < rp->rbr_refill_pending; i++) |
| 3748 | niu_rbr_refill(np, rp, GFP_ATOMIC); |
| 3749 | rp->rbr_refill_pending = 0; |
| 3750 | } |
| 3751 | |
| 3752 | stat = (RX_DMA_CTL_STAT_MEX | |
| 3753 | ((u64)work_done << RX_DMA_CTL_STAT_PKTREAD_SHIFT) | |
| 3754 | ((u64)rcr_done << RX_DMA_CTL_STAT_PTRREAD_SHIFT)); |
| 3755 | |
| 3756 | nw64(RX_DMA_CTL_STAT(rp->rx_channel), stat); |
| 3757 | |
Jesper Dangaard Brouer | e98def1 | 2008-12-18 19:51:56 -0800 | [diff] [blame] | 3758 | /* Only sync discards stats when qlen indicate potential for drops */ |
| 3759 | if (qlen > 10) |
| 3760 | niu_sync_rx_discard_stats(np, rp, 0x7FFF); |
Jesper Dangaard Brouer | b8a606b | 2008-12-18 19:50:49 -0800 | [diff] [blame] | 3761 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3762 | return work_done; |
| 3763 | } |
| 3764 | |
| 3765 | static int niu_poll_core(struct niu *np, struct niu_ldg *lp, int budget) |
| 3766 | { |
| 3767 | u64 v0 = lp->v0; |
| 3768 | u32 tx_vec = (v0 >> 32); |
| 3769 | u32 rx_vec = (v0 & 0xffffffff); |
| 3770 | int i, work_done = 0; |
| 3771 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3772 | netif_printk(np, intr, KERN_DEBUG, np->dev, |
| 3773 | "%s() v0[%016llx]\n", __func__, (unsigned long long)v0); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3774 | |
| 3775 | for (i = 0; i < np->num_tx_rings; i++) { |
| 3776 | struct tx_ring_info *rp = &np->tx_rings[i]; |
| 3777 | if (tx_vec & (1 << rp->tx_channel)) |
| 3778 | niu_tx_work(np, rp); |
| 3779 | nw64(LD_IM0(LDN_TXDMA(rp->tx_channel)), 0); |
| 3780 | } |
| 3781 | |
| 3782 | for (i = 0; i < np->num_rx_rings; i++) { |
| 3783 | struct rx_ring_info *rp = &np->rx_rings[i]; |
| 3784 | |
| 3785 | if (rx_vec & (1 << rp->rx_channel)) { |
| 3786 | int this_work_done; |
| 3787 | |
David S. Miller | 4099e01 | 2009-03-29 01:39:41 -0700 | [diff] [blame] | 3788 | this_work_done = niu_rx_work(&lp->napi, np, rp, |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3789 | budget); |
| 3790 | |
| 3791 | budget -= this_work_done; |
| 3792 | work_done += this_work_done; |
| 3793 | } |
| 3794 | nw64(LD_IM0(LDN_RXDMA(rp->rx_channel)), 0); |
| 3795 | } |
| 3796 | |
| 3797 | return work_done; |
| 3798 | } |
| 3799 | |
| 3800 | static int niu_poll(struct napi_struct *napi, int budget) |
| 3801 | { |
| 3802 | struct niu_ldg *lp = container_of(napi, struct niu_ldg, napi); |
| 3803 | struct niu *np = lp->np; |
| 3804 | int work_done; |
| 3805 | |
| 3806 | work_done = niu_poll_core(np, lp, budget); |
| 3807 | |
| 3808 | if (work_done < budget) { |
Ben Hutchings | 288379f | 2009-01-19 16:43:59 -0800 | [diff] [blame] | 3809 | napi_complete(napi); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3810 | niu_ldg_rearm(np, lp, 1); |
| 3811 | } |
| 3812 | return work_done; |
| 3813 | } |
| 3814 | |
| 3815 | static void niu_log_rxchan_errors(struct niu *np, struct rx_ring_info *rp, |
| 3816 | u64 stat) |
| 3817 | { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3818 | netdev_err(np->dev, "RX channel %u errors ( ", rp->rx_channel); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3819 | |
| 3820 | if (stat & RX_DMA_CTL_STAT_RBR_TMOUT) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3821 | pr_cont("RBR_TMOUT "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3822 | if (stat & RX_DMA_CTL_STAT_RSP_CNT_ERR) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3823 | pr_cont("RSP_CNT "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3824 | if (stat & RX_DMA_CTL_STAT_BYTE_EN_BUS) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3825 | pr_cont("BYTE_EN_BUS "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3826 | if (stat & RX_DMA_CTL_STAT_RSP_DAT_ERR) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3827 | pr_cont("RSP_DAT "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3828 | if (stat & RX_DMA_CTL_STAT_RCR_ACK_ERR) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3829 | pr_cont("RCR_ACK "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3830 | if (stat & RX_DMA_CTL_STAT_RCR_SHA_PAR) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3831 | pr_cont("RCR_SHA_PAR "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3832 | if (stat & RX_DMA_CTL_STAT_RBR_PRE_PAR) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3833 | pr_cont("RBR_PRE_PAR "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3834 | if (stat & RX_DMA_CTL_STAT_CONFIG_ERR) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3835 | pr_cont("CONFIG "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3836 | if (stat & RX_DMA_CTL_STAT_RCRINCON) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3837 | pr_cont("RCRINCON "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3838 | if (stat & RX_DMA_CTL_STAT_RCRFULL) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3839 | pr_cont("RCRFULL "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3840 | if (stat & RX_DMA_CTL_STAT_RBRFULL) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3841 | pr_cont("RBRFULL "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3842 | if (stat & RX_DMA_CTL_STAT_RBRLOGPAGE) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3843 | pr_cont("RBRLOGPAGE "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3844 | if (stat & RX_DMA_CTL_STAT_CFIGLOGPAGE) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3845 | pr_cont("CFIGLOGPAGE "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3846 | if (stat & RX_DMA_CTL_STAT_DC_FIFO_ERR) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3847 | pr_cont("DC_FIDO "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3848 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3849 | pr_cont(")\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3850 | } |
| 3851 | |
| 3852 | static int niu_rx_error(struct niu *np, struct rx_ring_info *rp) |
| 3853 | { |
| 3854 | u64 stat = nr64(RX_DMA_CTL_STAT(rp->rx_channel)); |
| 3855 | int err = 0; |
| 3856 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3857 | |
| 3858 | if (stat & (RX_DMA_CTL_STAT_CHAN_FATAL | |
| 3859 | RX_DMA_CTL_STAT_PORT_FATAL)) |
| 3860 | err = -EINVAL; |
| 3861 | |
Matheos Worku | 406f353 | 2008-01-04 23:48:26 -0800 | [diff] [blame] | 3862 | if (err) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3863 | netdev_err(np->dev, "RX channel %u error, stat[%llx]\n", |
| 3864 | rp->rx_channel, |
| 3865 | (unsigned long long) stat); |
Matheos Worku | 406f353 | 2008-01-04 23:48:26 -0800 | [diff] [blame] | 3866 | |
| 3867 | niu_log_rxchan_errors(np, rp, stat); |
| 3868 | } |
| 3869 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3870 | nw64(RX_DMA_CTL_STAT(rp->rx_channel), |
| 3871 | stat & RX_DMA_CTL_WRITE_CLEAR_ERRS); |
| 3872 | |
| 3873 | return err; |
| 3874 | } |
| 3875 | |
| 3876 | static void niu_log_txchan_errors(struct niu *np, struct tx_ring_info *rp, |
| 3877 | u64 cs) |
| 3878 | { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3879 | netdev_err(np->dev, "TX channel %u errors ( ", rp->tx_channel); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3880 | |
| 3881 | if (cs & TX_CS_MBOX_ERR) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3882 | pr_cont("MBOX "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3883 | if (cs & TX_CS_PKT_SIZE_ERR) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3884 | pr_cont("PKT_SIZE "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3885 | if (cs & TX_CS_TX_RING_OFLOW) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3886 | pr_cont("TX_RING_OFLOW "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3887 | if (cs & TX_CS_PREF_BUF_PAR_ERR) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3888 | pr_cont("PREF_BUF_PAR "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3889 | if (cs & TX_CS_NACK_PREF) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3890 | pr_cont("NACK_PREF "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3891 | if (cs & TX_CS_NACK_PKT_RD) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3892 | pr_cont("NACK_PKT_RD "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3893 | if (cs & TX_CS_CONF_PART_ERR) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3894 | pr_cont("CONF_PART "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3895 | if (cs & TX_CS_PKT_PRT_ERR) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3896 | pr_cont("PKT_PTR "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3897 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3898 | pr_cont(")\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3899 | } |
| 3900 | |
| 3901 | static int niu_tx_error(struct niu *np, struct tx_ring_info *rp) |
| 3902 | { |
| 3903 | u64 cs, logh, logl; |
| 3904 | |
| 3905 | cs = nr64(TX_CS(rp->tx_channel)); |
| 3906 | logh = nr64(TX_RNG_ERR_LOGH(rp->tx_channel)); |
| 3907 | logl = nr64(TX_RNG_ERR_LOGL(rp->tx_channel)); |
| 3908 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3909 | netdev_err(np->dev, "TX channel %u error, cs[%llx] logh[%llx] logl[%llx]\n", |
| 3910 | rp->tx_channel, |
| 3911 | (unsigned long long)cs, |
| 3912 | (unsigned long long)logh, |
| 3913 | (unsigned long long)logl); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3914 | |
| 3915 | niu_log_txchan_errors(np, rp, cs); |
| 3916 | |
| 3917 | return -ENODEV; |
| 3918 | } |
| 3919 | |
| 3920 | static int niu_mif_interrupt(struct niu *np) |
| 3921 | { |
| 3922 | u64 mif_status = nr64(MIF_STATUS); |
| 3923 | int phy_mdint = 0; |
| 3924 | |
| 3925 | if (np->flags & NIU_FLAGS_XMAC) { |
| 3926 | u64 xrxmac_stat = nr64_mac(XRXMAC_STATUS); |
| 3927 | |
| 3928 | if (xrxmac_stat & XRXMAC_STATUS_PHY_MDINT) |
| 3929 | phy_mdint = 1; |
| 3930 | } |
| 3931 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 3932 | netdev_err(np->dev, "MIF interrupt, stat[%llx] phy_mdint(%d)\n", |
| 3933 | (unsigned long long)mif_status, phy_mdint); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3934 | |
| 3935 | return -ENODEV; |
| 3936 | } |
| 3937 | |
| 3938 | static void niu_xmac_interrupt(struct niu *np) |
| 3939 | { |
| 3940 | struct niu_xmac_stats *mp = &np->mac_stats.xmac; |
| 3941 | u64 val; |
| 3942 | |
| 3943 | val = nr64_mac(XTXMAC_STATUS); |
| 3944 | if (val & XTXMAC_STATUS_FRAME_CNT_EXP) |
| 3945 | mp->tx_frames += TXMAC_FRM_CNT_COUNT; |
| 3946 | if (val & XTXMAC_STATUS_BYTE_CNT_EXP) |
| 3947 | mp->tx_bytes += TXMAC_BYTE_CNT_COUNT; |
| 3948 | if (val & XTXMAC_STATUS_TXFIFO_XFR_ERR) |
| 3949 | mp->tx_fifo_errors++; |
| 3950 | if (val & XTXMAC_STATUS_TXMAC_OFLOW) |
| 3951 | mp->tx_overflow_errors++; |
| 3952 | if (val & XTXMAC_STATUS_MAX_PSIZE_ERR) |
| 3953 | mp->tx_max_pkt_size_errors++; |
| 3954 | if (val & XTXMAC_STATUS_TXMAC_UFLOW) |
| 3955 | mp->tx_underflow_errors++; |
| 3956 | |
| 3957 | val = nr64_mac(XRXMAC_STATUS); |
| 3958 | if (val & XRXMAC_STATUS_LCL_FLT_STATUS) |
| 3959 | mp->rx_local_faults++; |
| 3960 | if (val & XRXMAC_STATUS_RFLT_DET) |
| 3961 | mp->rx_remote_faults++; |
| 3962 | if (val & XRXMAC_STATUS_LFLT_CNT_EXP) |
| 3963 | mp->rx_link_faults += LINK_FAULT_CNT_COUNT; |
| 3964 | if (val & XRXMAC_STATUS_ALIGNERR_CNT_EXP) |
| 3965 | mp->rx_align_errors += RXMAC_ALIGN_ERR_CNT_COUNT; |
| 3966 | if (val & XRXMAC_STATUS_RXFRAG_CNT_EXP) |
| 3967 | mp->rx_frags += RXMAC_FRAG_CNT_COUNT; |
| 3968 | if (val & XRXMAC_STATUS_RXMULTF_CNT_EXP) |
| 3969 | mp->rx_mcasts += RXMAC_MC_FRM_CNT_COUNT; |
| 3970 | if (val & XRXMAC_STATUS_RXBCAST_CNT_EXP) |
| 3971 | mp->rx_bcasts += RXMAC_BC_FRM_CNT_COUNT; |
| 3972 | if (val & XRXMAC_STATUS_RXBCAST_CNT_EXP) |
| 3973 | mp->rx_bcasts += RXMAC_BC_FRM_CNT_COUNT; |
| 3974 | if (val & XRXMAC_STATUS_RXHIST1_CNT_EXP) |
| 3975 | mp->rx_hist_cnt1 += RXMAC_HIST_CNT1_COUNT; |
| 3976 | if (val & XRXMAC_STATUS_RXHIST2_CNT_EXP) |
| 3977 | mp->rx_hist_cnt2 += RXMAC_HIST_CNT2_COUNT; |
| 3978 | if (val & XRXMAC_STATUS_RXHIST3_CNT_EXP) |
| 3979 | mp->rx_hist_cnt3 += RXMAC_HIST_CNT3_COUNT; |
| 3980 | if (val & XRXMAC_STATUS_RXHIST4_CNT_EXP) |
| 3981 | mp->rx_hist_cnt4 += RXMAC_HIST_CNT4_COUNT; |
| 3982 | if (val & XRXMAC_STATUS_RXHIST5_CNT_EXP) |
| 3983 | mp->rx_hist_cnt5 += RXMAC_HIST_CNT5_COUNT; |
| 3984 | if (val & XRXMAC_STATUS_RXHIST6_CNT_EXP) |
| 3985 | mp->rx_hist_cnt6 += RXMAC_HIST_CNT6_COUNT; |
| 3986 | if (val & XRXMAC_STATUS_RXHIST7_CNT_EXP) |
| 3987 | mp->rx_hist_cnt7 += RXMAC_HIST_CNT7_COUNT; |
Julia Lawall | 176edd5 | 2009-08-07 21:53:41 +0000 | [diff] [blame] | 3988 | if (val & XRXMAC_STATUS_RXOCTET_CNT_EXP) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 3989 | mp->rx_octets += RXMAC_BT_CNT_COUNT; |
| 3990 | if (val & XRXMAC_STATUS_CVIOLERR_CNT_EXP) |
| 3991 | mp->rx_code_violations += RXMAC_CD_VIO_CNT_COUNT; |
| 3992 | if (val & XRXMAC_STATUS_LENERR_CNT_EXP) |
| 3993 | mp->rx_len_errors += RXMAC_MPSZER_CNT_COUNT; |
| 3994 | if (val & XRXMAC_STATUS_CRCERR_CNT_EXP) |
| 3995 | mp->rx_crc_errors += RXMAC_CRC_ER_CNT_COUNT; |
| 3996 | if (val & XRXMAC_STATUS_RXUFLOW) |
| 3997 | mp->rx_underflows++; |
| 3998 | if (val & XRXMAC_STATUS_RXOFLOW) |
| 3999 | mp->rx_overflows++; |
| 4000 | |
| 4001 | val = nr64_mac(XMAC_FC_STAT); |
| 4002 | if (val & XMAC_FC_STAT_TX_MAC_NPAUSE) |
| 4003 | mp->pause_off_state++; |
| 4004 | if (val & XMAC_FC_STAT_TX_MAC_PAUSE) |
| 4005 | mp->pause_on_state++; |
| 4006 | if (val & XMAC_FC_STAT_RX_MAC_RPAUSE) |
| 4007 | mp->pause_received++; |
| 4008 | } |
| 4009 | |
| 4010 | static void niu_bmac_interrupt(struct niu *np) |
| 4011 | { |
| 4012 | struct niu_bmac_stats *mp = &np->mac_stats.bmac; |
| 4013 | u64 val; |
| 4014 | |
| 4015 | val = nr64_mac(BTXMAC_STATUS); |
| 4016 | if (val & BTXMAC_STATUS_UNDERRUN) |
| 4017 | mp->tx_underflow_errors++; |
| 4018 | if (val & BTXMAC_STATUS_MAX_PKT_ERR) |
| 4019 | mp->tx_max_pkt_size_errors++; |
| 4020 | if (val & BTXMAC_STATUS_BYTE_CNT_EXP) |
| 4021 | mp->tx_bytes += BTXMAC_BYTE_CNT_COUNT; |
| 4022 | if (val & BTXMAC_STATUS_FRAME_CNT_EXP) |
| 4023 | mp->tx_frames += BTXMAC_FRM_CNT_COUNT; |
| 4024 | |
| 4025 | val = nr64_mac(BRXMAC_STATUS); |
| 4026 | if (val & BRXMAC_STATUS_OVERFLOW) |
| 4027 | mp->rx_overflows++; |
| 4028 | if (val & BRXMAC_STATUS_FRAME_CNT_EXP) |
| 4029 | mp->rx_frames += BRXMAC_FRAME_CNT_COUNT; |
| 4030 | if (val & BRXMAC_STATUS_ALIGN_ERR_EXP) |
| 4031 | mp->rx_align_errors += BRXMAC_ALIGN_ERR_CNT_COUNT; |
| 4032 | if (val & BRXMAC_STATUS_CRC_ERR_EXP) |
| 4033 | mp->rx_crc_errors += BRXMAC_ALIGN_ERR_CNT_COUNT; |
| 4034 | if (val & BRXMAC_STATUS_LEN_ERR_EXP) |
| 4035 | mp->rx_len_errors += BRXMAC_CODE_VIOL_ERR_CNT_COUNT; |
| 4036 | |
| 4037 | val = nr64_mac(BMAC_CTRL_STATUS); |
| 4038 | if (val & BMAC_CTRL_STATUS_NOPAUSE) |
| 4039 | mp->pause_off_state++; |
| 4040 | if (val & BMAC_CTRL_STATUS_PAUSE) |
| 4041 | mp->pause_on_state++; |
| 4042 | if (val & BMAC_CTRL_STATUS_PAUSE_RECV) |
| 4043 | mp->pause_received++; |
| 4044 | } |
| 4045 | |
| 4046 | static int niu_mac_interrupt(struct niu *np) |
| 4047 | { |
| 4048 | if (np->flags & NIU_FLAGS_XMAC) |
| 4049 | niu_xmac_interrupt(np); |
| 4050 | else |
| 4051 | niu_bmac_interrupt(np); |
| 4052 | |
| 4053 | return 0; |
| 4054 | } |
| 4055 | |
| 4056 | static void niu_log_device_error(struct niu *np, u64 stat) |
| 4057 | { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4058 | netdev_err(np->dev, "Core device errors ( "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4059 | |
| 4060 | if (stat & SYS_ERR_MASK_META2) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4061 | pr_cont("META2 "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4062 | if (stat & SYS_ERR_MASK_META1) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4063 | pr_cont("META1 "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4064 | if (stat & SYS_ERR_MASK_PEU) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4065 | pr_cont("PEU "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4066 | if (stat & SYS_ERR_MASK_TXC) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4067 | pr_cont("TXC "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4068 | if (stat & SYS_ERR_MASK_RDMC) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4069 | pr_cont("RDMC "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4070 | if (stat & SYS_ERR_MASK_TDMC) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4071 | pr_cont("TDMC "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4072 | if (stat & SYS_ERR_MASK_ZCP) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4073 | pr_cont("ZCP "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4074 | if (stat & SYS_ERR_MASK_FFLP) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4075 | pr_cont("FFLP "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4076 | if (stat & SYS_ERR_MASK_IPP) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4077 | pr_cont("IPP "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4078 | if (stat & SYS_ERR_MASK_MAC) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4079 | pr_cont("MAC "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4080 | if (stat & SYS_ERR_MASK_SMX) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4081 | pr_cont("SMX "); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4082 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4083 | pr_cont(")\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4084 | } |
| 4085 | |
| 4086 | static int niu_device_error(struct niu *np) |
| 4087 | { |
| 4088 | u64 stat = nr64(SYS_ERR_STAT); |
| 4089 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4090 | netdev_err(np->dev, "Core device error, stat[%llx]\n", |
| 4091 | (unsigned long long)stat); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4092 | |
| 4093 | niu_log_device_error(np, stat); |
| 4094 | |
| 4095 | return -ENODEV; |
| 4096 | } |
| 4097 | |
Matheos Worku | 406f353 | 2008-01-04 23:48:26 -0800 | [diff] [blame] | 4098 | static int niu_slowpath_interrupt(struct niu *np, struct niu_ldg *lp, |
| 4099 | u64 v0, u64 v1, u64 v2) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4100 | { |
Matheos Worku | 406f353 | 2008-01-04 23:48:26 -0800 | [diff] [blame] | 4101 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4102 | int i, err = 0; |
| 4103 | |
Matheos Worku | 406f353 | 2008-01-04 23:48:26 -0800 | [diff] [blame] | 4104 | lp->v0 = v0; |
| 4105 | lp->v1 = v1; |
| 4106 | lp->v2 = v2; |
| 4107 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4108 | if (v1 & 0x00000000ffffffffULL) { |
| 4109 | u32 rx_vec = (v1 & 0xffffffff); |
| 4110 | |
| 4111 | for (i = 0; i < np->num_rx_rings; i++) { |
| 4112 | struct rx_ring_info *rp = &np->rx_rings[i]; |
| 4113 | |
| 4114 | if (rx_vec & (1 << rp->rx_channel)) { |
| 4115 | int r = niu_rx_error(np, rp); |
Matheos Worku | 406f353 | 2008-01-04 23:48:26 -0800 | [diff] [blame] | 4116 | if (r) { |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4117 | err = r; |
Matheos Worku | 406f353 | 2008-01-04 23:48:26 -0800 | [diff] [blame] | 4118 | } else { |
| 4119 | if (!v0) |
| 4120 | nw64(RX_DMA_CTL_STAT(rp->rx_channel), |
| 4121 | RX_DMA_CTL_STAT_MEX); |
| 4122 | } |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4123 | } |
| 4124 | } |
| 4125 | } |
| 4126 | if (v1 & 0x7fffffff00000000ULL) { |
| 4127 | u32 tx_vec = (v1 >> 32) & 0x7fffffff; |
| 4128 | |
| 4129 | for (i = 0; i < np->num_tx_rings; i++) { |
| 4130 | struct tx_ring_info *rp = &np->tx_rings[i]; |
| 4131 | |
| 4132 | if (tx_vec & (1 << rp->tx_channel)) { |
| 4133 | int r = niu_tx_error(np, rp); |
| 4134 | if (r) |
| 4135 | err = r; |
| 4136 | } |
| 4137 | } |
| 4138 | } |
| 4139 | if ((v0 | v1) & 0x8000000000000000ULL) { |
| 4140 | int r = niu_mif_interrupt(np); |
| 4141 | if (r) |
| 4142 | err = r; |
| 4143 | } |
| 4144 | if (v2) { |
| 4145 | if (v2 & 0x01ef) { |
| 4146 | int r = niu_mac_interrupt(np); |
| 4147 | if (r) |
| 4148 | err = r; |
| 4149 | } |
| 4150 | if (v2 & 0x0210) { |
| 4151 | int r = niu_device_error(np); |
| 4152 | if (r) |
| 4153 | err = r; |
| 4154 | } |
| 4155 | } |
| 4156 | |
| 4157 | if (err) |
| 4158 | niu_enable_interrupts(np, 0); |
| 4159 | |
Matheos Worku | 406f353 | 2008-01-04 23:48:26 -0800 | [diff] [blame] | 4160 | return err; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4161 | } |
| 4162 | |
| 4163 | static void niu_rxchan_intr(struct niu *np, struct rx_ring_info *rp, |
| 4164 | int ldn) |
| 4165 | { |
| 4166 | struct rxdma_mailbox *mbox = rp->mbox; |
| 4167 | u64 stat_write, stat = le64_to_cpup(&mbox->rx_dma_ctl_stat); |
| 4168 | |
| 4169 | stat_write = (RX_DMA_CTL_STAT_RCRTHRES | |
| 4170 | RX_DMA_CTL_STAT_RCRTO); |
| 4171 | nw64(RX_DMA_CTL_STAT(rp->rx_channel), stat_write); |
| 4172 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4173 | netif_printk(np, intr, KERN_DEBUG, np->dev, |
| 4174 | "%s() stat[%llx]\n", __func__, (unsigned long long)stat); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4175 | } |
| 4176 | |
| 4177 | static void niu_txchan_intr(struct niu *np, struct tx_ring_info *rp, |
| 4178 | int ldn) |
| 4179 | { |
| 4180 | rp->tx_cs = nr64(TX_CS(rp->tx_channel)); |
| 4181 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4182 | netif_printk(np, intr, KERN_DEBUG, np->dev, |
| 4183 | "%s() cs[%llx]\n", __func__, (unsigned long long)rp->tx_cs); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4184 | } |
| 4185 | |
| 4186 | static void __niu_fastpath_interrupt(struct niu *np, int ldg, u64 v0) |
| 4187 | { |
| 4188 | struct niu_parent *parent = np->parent; |
| 4189 | u32 rx_vec, tx_vec; |
| 4190 | int i; |
| 4191 | |
| 4192 | tx_vec = (v0 >> 32); |
| 4193 | rx_vec = (v0 & 0xffffffff); |
| 4194 | |
| 4195 | for (i = 0; i < np->num_rx_rings; i++) { |
| 4196 | struct rx_ring_info *rp = &np->rx_rings[i]; |
| 4197 | int ldn = LDN_RXDMA(rp->rx_channel); |
| 4198 | |
| 4199 | if (parent->ldg_map[ldn] != ldg) |
| 4200 | continue; |
| 4201 | |
| 4202 | nw64(LD_IM0(ldn), LD_IM0_MASK); |
| 4203 | if (rx_vec & (1 << rp->rx_channel)) |
| 4204 | niu_rxchan_intr(np, rp, ldn); |
| 4205 | } |
| 4206 | |
| 4207 | for (i = 0; i < np->num_tx_rings; i++) { |
| 4208 | struct tx_ring_info *rp = &np->tx_rings[i]; |
| 4209 | int ldn = LDN_TXDMA(rp->tx_channel); |
| 4210 | |
| 4211 | if (parent->ldg_map[ldn] != ldg) |
| 4212 | continue; |
| 4213 | |
| 4214 | nw64(LD_IM0(ldn), LD_IM0_MASK); |
| 4215 | if (tx_vec & (1 << rp->tx_channel)) |
| 4216 | niu_txchan_intr(np, rp, ldn); |
| 4217 | } |
| 4218 | } |
| 4219 | |
| 4220 | static void niu_schedule_napi(struct niu *np, struct niu_ldg *lp, |
| 4221 | u64 v0, u64 v1, u64 v2) |
| 4222 | { |
Ben Hutchings | 288379f | 2009-01-19 16:43:59 -0800 | [diff] [blame] | 4223 | if (likely(napi_schedule_prep(&lp->napi))) { |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4224 | lp->v0 = v0; |
| 4225 | lp->v1 = v1; |
| 4226 | lp->v2 = v2; |
| 4227 | __niu_fastpath_interrupt(np, lp->ldg_num, v0); |
Ben Hutchings | 288379f | 2009-01-19 16:43:59 -0800 | [diff] [blame] | 4228 | __napi_schedule(&lp->napi); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4229 | } |
| 4230 | } |
| 4231 | |
| 4232 | static irqreturn_t niu_interrupt(int irq, void *dev_id) |
| 4233 | { |
| 4234 | struct niu_ldg *lp = dev_id; |
| 4235 | struct niu *np = lp->np; |
| 4236 | int ldg = lp->ldg_num; |
| 4237 | unsigned long flags; |
| 4238 | u64 v0, v1, v2; |
| 4239 | |
| 4240 | if (netif_msg_intr(np)) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4241 | printk(KERN_DEBUG KBUILD_MODNAME ": " "%s() ldg[%p](%d)", |
| 4242 | __func__, lp, ldg); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4243 | |
| 4244 | spin_lock_irqsave(&np->lock, flags); |
| 4245 | |
| 4246 | v0 = nr64(LDSV0(ldg)); |
| 4247 | v1 = nr64(LDSV1(ldg)); |
| 4248 | v2 = nr64(LDSV2(ldg)); |
| 4249 | |
| 4250 | if (netif_msg_intr(np)) |
David S. Miller | 02b1bae | 2010-02-15 00:07:00 -0800 | [diff] [blame] | 4251 | pr_cont(" v0[%llx] v1[%llx] v2[%llx]\n", |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4252 | (unsigned long long) v0, |
| 4253 | (unsigned long long) v1, |
| 4254 | (unsigned long long) v2); |
| 4255 | |
| 4256 | if (unlikely(!v0 && !v1 && !v2)) { |
| 4257 | spin_unlock_irqrestore(&np->lock, flags); |
| 4258 | return IRQ_NONE; |
| 4259 | } |
| 4260 | |
| 4261 | if (unlikely((v0 & ((u64)1 << LDN_MIF)) || v1 || v2)) { |
Matheos Worku | 406f353 | 2008-01-04 23:48:26 -0800 | [diff] [blame] | 4262 | int err = niu_slowpath_interrupt(np, lp, v0, v1, v2); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4263 | if (err) |
| 4264 | goto out; |
| 4265 | } |
| 4266 | if (likely(v0 & ~((u64)1 << LDN_MIF))) |
| 4267 | niu_schedule_napi(np, lp, v0, v1, v2); |
| 4268 | else |
| 4269 | niu_ldg_rearm(np, lp, 1); |
| 4270 | out: |
| 4271 | spin_unlock_irqrestore(&np->lock, flags); |
| 4272 | |
| 4273 | return IRQ_HANDLED; |
| 4274 | } |
| 4275 | |
| 4276 | static void niu_free_rx_ring_info(struct niu *np, struct rx_ring_info *rp) |
| 4277 | { |
| 4278 | if (rp->mbox) { |
| 4279 | np->ops->free_coherent(np->device, |
| 4280 | sizeof(struct rxdma_mailbox), |
| 4281 | rp->mbox, rp->mbox_dma); |
| 4282 | rp->mbox = NULL; |
| 4283 | } |
| 4284 | if (rp->rcr) { |
| 4285 | np->ops->free_coherent(np->device, |
| 4286 | MAX_RCR_RING_SIZE * sizeof(__le64), |
| 4287 | rp->rcr, rp->rcr_dma); |
| 4288 | rp->rcr = NULL; |
| 4289 | rp->rcr_table_size = 0; |
| 4290 | rp->rcr_index = 0; |
| 4291 | } |
| 4292 | if (rp->rbr) { |
| 4293 | niu_rbr_free(np, rp); |
| 4294 | |
| 4295 | np->ops->free_coherent(np->device, |
| 4296 | MAX_RBR_RING_SIZE * sizeof(__le32), |
| 4297 | rp->rbr, rp->rbr_dma); |
| 4298 | rp->rbr = NULL; |
| 4299 | rp->rbr_table_size = 0; |
| 4300 | rp->rbr_index = 0; |
| 4301 | } |
| 4302 | kfree(rp->rxhash); |
| 4303 | rp->rxhash = NULL; |
| 4304 | } |
| 4305 | |
| 4306 | static void niu_free_tx_ring_info(struct niu *np, struct tx_ring_info *rp) |
| 4307 | { |
| 4308 | if (rp->mbox) { |
| 4309 | np->ops->free_coherent(np->device, |
| 4310 | sizeof(struct txdma_mailbox), |
| 4311 | rp->mbox, rp->mbox_dma); |
| 4312 | rp->mbox = NULL; |
| 4313 | } |
| 4314 | if (rp->descr) { |
| 4315 | int i; |
| 4316 | |
| 4317 | for (i = 0; i < MAX_TX_RING_SIZE; i++) { |
| 4318 | if (rp->tx_buffs[i].skb) |
| 4319 | (void) release_tx_packet(np, rp, i); |
| 4320 | } |
| 4321 | |
| 4322 | np->ops->free_coherent(np->device, |
| 4323 | MAX_TX_RING_SIZE * sizeof(__le64), |
| 4324 | rp->descr, rp->descr_dma); |
| 4325 | rp->descr = NULL; |
| 4326 | rp->pending = 0; |
| 4327 | rp->prod = 0; |
| 4328 | rp->cons = 0; |
| 4329 | rp->wrap_bit = 0; |
| 4330 | } |
| 4331 | } |
| 4332 | |
| 4333 | static void niu_free_channels(struct niu *np) |
| 4334 | { |
| 4335 | int i; |
| 4336 | |
| 4337 | if (np->rx_rings) { |
| 4338 | for (i = 0; i < np->num_rx_rings; i++) { |
| 4339 | struct rx_ring_info *rp = &np->rx_rings[i]; |
| 4340 | |
| 4341 | niu_free_rx_ring_info(np, rp); |
| 4342 | } |
| 4343 | kfree(np->rx_rings); |
| 4344 | np->rx_rings = NULL; |
| 4345 | np->num_rx_rings = 0; |
| 4346 | } |
| 4347 | |
| 4348 | if (np->tx_rings) { |
| 4349 | for (i = 0; i < np->num_tx_rings; i++) { |
| 4350 | struct tx_ring_info *rp = &np->tx_rings[i]; |
| 4351 | |
| 4352 | niu_free_tx_ring_info(np, rp); |
| 4353 | } |
| 4354 | kfree(np->tx_rings); |
| 4355 | np->tx_rings = NULL; |
| 4356 | np->num_tx_rings = 0; |
| 4357 | } |
| 4358 | } |
| 4359 | |
| 4360 | static int niu_alloc_rx_ring_info(struct niu *np, |
| 4361 | struct rx_ring_info *rp) |
| 4362 | { |
| 4363 | BUILD_BUG_ON(sizeof(struct rxdma_mailbox) != 64); |
| 4364 | |
| 4365 | rp->rxhash = kzalloc(MAX_RBR_RING_SIZE * sizeof(struct page *), |
| 4366 | GFP_KERNEL); |
| 4367 | if (!rp->rxhash) |
| 4368 | return -ENOMEM; |
| 4369 | |
| 4370 | rp->mbox = np->ops->alloc_coherent(np->device, |
| 4371 | sizeof(struct rxdma_mailbox), |
| 4372 | &rp->mbox_dma, GFP_KERNEL); |
| 4373 | if (!rp->mbox) |
| 4374 | return -ENOMEM; |
| 4375 | if ((unsigned long)rp->mbox & (64UL - 1)) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4376 | netdev_err(np->dev, "Coherent alloc gives misaligned RXDMA mailbox %p\n", |
| 4377 | rp->mbox); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4378 | return -EINVAL; |
| 4379 | } |
| 4380 | |
| 4381 | rp->rcr = np->ops->alloc_coherent(np->device, |
| 4382 | MAX_RCR_RING_SIZE * sizeof(__le64), |
| 4383 | &rp->rcr_dma, GFP_KERNEL); |
| 4384 | if (!rp->rcr) |
| 4385 | return -ENOMEM; |
| 4386 | if ((unsigned long)rp->rcr & (64UL - 1)) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4387 | netdev_err(np->dev, "Coherent alloc gives misaligned RXDMA RCR table %p\n", |
| 4388 | rp->rcr); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4389 | return -EINVAL; |
| 4390 | } |
| 4391 | rp->rcr_table_size = MAX_RCR_RING_SIZE; |
| 4392 | rp->rcr_index = 0; |
| 4393 | |
| 4394 | rp->rbr = np->ops->alloc_coherent(np->device, |
| 4395 | MAX_RBR_RING_SIZE * sizeof(__le32), |
| 4396 | &rp->rbr_dma, GFP_KERNEL); |
| 4397 | if (!rp->rbr) |
| 4398 | return -ENOMEM; |
| 4399 | if ((unsigned long)rp->rbr & (64UL - 1)) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4400 | netdev_err(np->dev, "Coherent alloc gives misaligned RXDMA RBR table %p\n", |
| 4401 | rp->rbr); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4402 | return -EINVAL; |
| 4403 | } |
| 4404 | rp->rbr_table_size = MAX_RBR_RING_SIZE; |
| 4405 | rp->rbr_index = 0; |
| 4406 | rp->rbr_pending = 0; |
| 4407 | |
| 4408 | return 0; |
| 4409 | } |
| 4410 | |
| 4411 | static void niu_set_max_burst(struct niu *np, struct tx_ring_info *rp) |
| 4412 | { |
| 4413 | int mtu = np->dev->mtu; |
| 4414 | |
| 4415 | /* These values are recommended by the HW designers for fair |
| 4416 | * utilization of DRR amongst the rings. |
| 4417 | */ |
| 4418 | rp->max_burst = mtu + 32; |
| 4419 | if (rp->max_burst > 4096) |
| 4420 | rp->max_burst = 4096; |
| 4421 | } |
| 4422 | |
| 4423 | static int niu_alloc_tx_ring_info(struct niu *np, |
| 4424 | struct tx_ring_info *rp) |
| 4425 | { |
| 4426 | BUILD_BUG_ON(sizeof(struct txdma_mailbox) != 64); |
| 4427 | |
| 4428 | rp->mbox = np->ops->alloc_coherent(np->device, |
| 4429 | sizeof(struct txdma_mailbox), |
| 4430 | &rp->mbox_dma, GFP_KERNEL); |
| 4431 | if (!rp->mbox) |
| 4432 | return -ENOMEM; |
| 4433 | if ((unsigned long)rp->mbox & (64UL - 1)) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4434 | netdev_err(np->dev, "Coherent alloc gives misaligned TXDMA mailbox %p\n", |
| 4435 | rp->mbox); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4436 | return -EINVAL; |
| 4437 | } |
| 4438 | |
| 4439 | rp->descr = np->ops->alloc_coherent(np->device, |
| 4440 | MAX_TX_RING_SIZE * sizeof(__le64), |
| 4441 | &rp->descr_dma, GFP_KERNEL); |
| 4442 | if (!rp->descr) |
| 4443 | return -ENOMEM; |
| 4444 | if ((unsigned long)rp->descr & (64UL - 1)) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4445 | netdev_err(np->dev, "Coherent alloc gives misaligned TXDMA descr table %p\n", |
| 4446 | rp->descr); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4447 | return -EINVAL; |
| 4448 | } |
| 4449 | |
| 4450 | rp->pending = MAX_TX_RING_SIZE; |
| 4451 | rp->prod = 0; |
| 4452 | rp->cons = 0; |
| 4453 | rp->wrap_bit = 0; |
| 4454 | |
| 4455 | /* XXX make these configurable... XXX */ |
| 4456 | rp->mark_freq = rp->pending / 4; |
| 4457 | |
| 4458 | niu_set_max_burst(np, rp); |
| 4459 | |
| 4460 | return 0; |
| 4461 | } |
| 4462 | |
| 4463 | static void niu_size_rbr(struct niu *np, struct rx_ring_info *rp) |
| 4464 | { |
Olof Johansson | 8142997 | 2007-10-21 16:32:58 -0700 | [diff] [blame] | 4465 | u16 bss; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4466 | |
Olof Johansson | 8142997 | 2007-10-21 16:32:58 -0700 | [diff] [blame] | 4467 | bss = min(PAGE_SHIFT, 15); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4468 | |
Olof Johansson | 8142997 | 2007-10-21 16:32:58 -0700 | [diff] [blame] | 4469 | rp->rbr_block_size = 1 << bss; |
| 4470 | rp->rbr_blocks_per_page = 1 << (PAGE_SHIFT-bss); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4471 | |
| 4472 | rp->rbr_sizes[0] = 256; |
| 4473 | rp->rbr_sizes[1] = 1024; |
| 4474 | if (np->dev->mtu > ETH_DATA_LEN) { |
| 4475 | switch (PAGE_SIZE) { |
| 4476 | case 4 * 1024: |
| 4477 | rp->rbr_sizes[2] = 4096; |
| 4478 | break; |
| 4479 | |
| 4480 | default: |
| 4481 | rp->rbr_sizes[2] = 8192; |
| 4482 | break; |
| 4483 | } |
| 4484 | } else { |
| 4485 | rp->rbr_sizes[2] = 2048; |
| 4486 | } |
| 4487 | rp->rbr_sizes[3] = rp->rbr_block_size; |
| 4488 | } |
| 4489 | |
| 4490 | static int niu_alloc_channels(struct niu *np) |
| 4491 | { |
| 4492 | struct niu_parent *parent = np->parent; |
| 4493 | int first_rx_channel, first_tx_channel; |
| 4494 | int i, port, err; |
| 4495 | |
| 4496 | port = np->port; |
| 4497 | first_rx_channel = first_tx_channel = 0; |
| 4498 | for (i = 0; i < port; i++) { |
| 4499 | first_rx_channel += parent->rxchan_per_port[i]; |
| 4500 | first_tx_channel += parent->txchan_per_port[i]; |
| 4501 | } |
| 4502 | |
| 4503 | np->num_rx_rings = parent->rxchan_per_port[port]; |
| 4504 | np->num_tx_rings = parent->txchan_per_port[port]; |
| 4505 | |
David S. Miller | b4c2163 | 2008-07-15 03:48:19 -0700 | [diff] [blame] | 4506 | np->dev->real_num_tx_queues = np->num_tx_rings; |
| 4507 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4508 | np->rx_rings = kzalloc(np->num_rx_rings * sizeof(struct rx_ring_info), |
| 4509 | GFP_KERNEL); |
| 4510 | err = -ENOMEM; |
| 4511 | if (!np->rx_rings) |
| 4512 | goto out_err; |
| 4513 | |
| 4514 | for (i = 0; i < np->num_rx_rings; i++) { |
| 4515 | struct rx_ring_info *rp = &np->rx_rings[i]; |
| 4516 | |
| 4517 | rp->np = np; |
| 4518 | rp->rx_channel = first_rx_channel + i; |
| 4519 | |
| 4520 | err = niu_alloc_rx_ring_info(np, rp); |
| 4521 | if (err) |
| 4522 | goto out_err; |
| 4523 | |
| 4524 | niu_size_rbr(np, rp); |
| 4525 | |
| 4526 | /* XXX better defaults, configurable, etc... XXX */ |
| 4527 | rp->nonsyn_window = 64; |
| 4528 | rp->nonsyn_threshold = rp->rcr_table_size - 64; |
| 4529 | rp->syn_window = 64; |
| 4530 | rp->syn_threshold = rp->rcr_table_size - 64; |
| 4531 | rp->rcr_pkt_threshold = 16; |
| 4532 | rp->rcr_timeout = 8; |
| 4533 | rp->rbr_kick_thresh = RBR_REFILL_MIN; |
| 4534 | if (rp->rbr_kick_thresh < rp->rbr_blocks_per_page) |
| 4535 | rp->rbr_kick_thresh = rp->rbr_blocks_per_page; |
| 4536 | |
| 4537 | err = niu_rbr_fill(np, rp, GFP_KERNEL); |
| 4538 | if (err) |
| 4539 | return err; |
| 4540 | } |
| 4541 | |
| 4542 | np->tx_rings = kzalloc(np->num_tx_rings * sizeof(struct tx_ring_info), |
| 4543 | GFP_KERNEL); |
| 4544 | err = -ENOMEM; |
| 4545 | if (!np->tx_rings) |
| 4546 | goto out_err; |
| 4547 | |
| 4548 | for (i = 0; i < np->num_tx_rings; i++) { |
| 4549 | struct tx_ring_info *rp = &np->tx_rings[i]; |
| 4550 | |
| 4551 | rp->np = np; |
| 4552 | rp->tx_channel = first_tx_channel + i; |
| 4553 | |
| 4554 | err = niu_alloc_tx_ring_info(np, rp); |
| 4555 | if (err) |
| 4556 | goto out_err; |
| 4557 | } |
| 4558 | |
| 4559 | return 0; |
| 4560 | |
| 4561 | out_err: |
| 4562 | niu_free_channels(np); |
| 4563 | return err; |
| 4564 | } |
| 4565 | |
| 4566 | static int niu_tx_cs_sng_poll(struct niu *np, int channel) |
| 4567 | { |
| 4568 | int limit = 1000; |
| 4569 | |
| 4570 | while (--limit > 0) { |
| 4571 | u64 val = nr64(TX_CS(channel)); |
| 4572 | if (val & TX_CS_SNG_STATE) |
| 4573 | return 0; |
| 4574 | } |
| 4575 | return -ENODEV; |
| 4576 | } |
| 4577 | |
| 4578 | static int niu_tx_channel_stop(struct niu *np, int channel) |
| 4579 | { |
| 4580 | u64 val = nr64(TX_CS(channel)); |
| 4581 | |
| 4582 | val |= TX_CS_STOP_N_GO; |
| 4583 | nw64(TX_CS(channel), val); |
| 4584 | |
| 4585 | return niu_tx_cs_sng_poll(np, channel); |
| 4586 | } |
| 4587 | |
| 4588 | static int niu_tx_cs_reset_poll(struct niu *np, int channel) |
| 4589 | { |
| 4590 | int limit = 1000; |
| 4591 | |
| 4592 | while (--limit > 0) { |
| 4593 | u64 val = nr64(TX_CS(channel)); |
| 4594 | if (!(val & TX_CS_RST)) |
| 4595 | return 0; |
| 4596 | } |
| 4597 | return -ENODEV; |
| 4598 | } |
| 4599 | |
| 4600 | static int niu_tx_channel_reset(struct niu *np, int channel) |
| 4601 | { |
| 4602 | u64 val = nr64(TX_CS(channel)); |
| 4603 | int err; |
| 4604 | |
| 4605 | val |= TX_CS_RST; |
| 4606 | nw64(TX_CS(channel), val); |
| 4607 | |
| 4608 | err = niu_tx_cs_reset_poll(np, channel); |
| 4609 | if (!err) |
| 4610 | nw64(TX_RING_KICK(channel), 0); |
| 4611 | |
| 4612 | return err; |
| 4613 | } |
| 4614 | |
| 4615 | static int niu_tx_channel_lpage_init(struct niu *np, int channel) |
| 4616 | { |
| 4617 | u64 val; |
| 4618 | |
| 4619 | nw64(TX_LOG_MASK1(channel), 0); |
| 4620 | nw64(TX_LOG_VAL1(channel), 0); |
| 4621 | nw64(TX_LOG_MASK2(channel), 0); |
| 4622 | nw64(TX_LOG_VAL2(channel), 0); |
| 4623 | nw64(TX_LOG_PAGE_RELO1(channel), 0); |
| 4624 | nw64(TX_LOG_PAGE_RELO2(channel), 0); |
| 4625 | nw64(TX_LOG_PAGE_HDL(channel), 0); |
| 4626 | |
| 4627 | val = (u64)np->port << TX_LOG_PAGE_VLD_FUNC_SHIFT; |
| 4628 | val |= (TX_LOG_PAGE_VLD_PAGE0 | TX_LOG_PAGE_VLD_PAGE1); |
| 4629 | nw64(TX_LOG_PAGE_VLD(channel), val); |
| 4630 | |
| 4631 | /* XXX TXDMA 32bit mode? XXX */ |
| 4632 | |
| 4633 | return 0; |
| 4634 | } |
| 4635 | |
| 4636 | static void niu_txc_enable_port(struct niu *np, int on) |
| 4637 | { |
| 4638 | unsigned long flags; |
| 4639 | u64 val, mask; |
| 4640 | |
| 4641 | niu_lock_parent(np, flags); |
| 4642 | val = nr64(TXC_CONTROL); |
| 4643 | mask = (u64)1 << np->port; |
| 4644 | if (on) { |
| 4645 | val |= TXC_CONTROL_ENABLE | mask; |
| 4646 | } else { |
| 4647 | val &= ~mask; |
| 4648 | if ((val & ~TXC_CONTROL_ENABLE) == 0) |
| 4649 | val &= ~TXC_CONTROL_ENABLE; |
| 4650 | } |
| 4651 | nw64(TXC_CONTROL, val); |
| 4652 | niu_unlock_parent(np, flags); |
| 4653 | } |
| 4654 | |
| 4655 | static void niu_txc_set_imask(struct niu *np, u64 imask) |
| 4656 | { |
| 4657 | unsigned long flags; |
| 4658 | u64 val; |
| 4659 | |
| 4660 | niu_lock_parent(np, flags); |
| 4661 | val = nr64(TXC_INT_MASK); |
| 4662 | val &= ~TXC_INT_MASK_VAL(np->port); |
| 4663 | val |= (imask << TXC_INT_MASK_VAL_SHIFT(np->port)); |
| 4664 | niu_unlock_parent(np, flags); |
| 4665 | } |
| 4666 | |
| 4667 | static void niu_txc_port_dma_enable(struct niu *np, int on) |
| 4668 | { |
| 4669 | u64 val = 0; |
| 4670 | |
| 4671 | if (on) { |
| 4672 | int i; |
| 4673 | |
| 4674 | for (i = 0; i < np->num_tx_rings; i++) |
| 4675 | val |= (1 << np->tx_rings[i].tx_channel); |
| 4676 | } |
| 4677 | nw64(TXC_PORT_DMA(np->port), val); |
| 4678 | } |
| 4679 | |
| 4680 | static int niu_init_one_tx_channel(struct niu *np, struct tx_ring_info *rp) |
| 4681 | { |
| 4682 | int err, channel = rp->tx_channel; |
| 4683 | u64 val, ring_len; |
| 4684 | |
| 4685 | err = niu_tx_channel_stop(np, channel); |
| 4686 | if (err) |
| 4687 | return err; |
| 4688 | |
| 4689 | err = niu_tx_channel_reset(np, channel); |
| 4690 | if (err) |
| 4691 | return err; |
| 4692 | |
| 4693 | err = niu_tx_channel_lpage_init(np, channel); |
| 4694 | if (err) |
| 4695 | return err; |
| 4696 | |
| 4697 | nw64(TXC_DMA_MAX(channel), rp->max_burst); |
| 4698 | nw64(TX_ENT_MSK(channel), 0); |
| 4699 | |
| 4700 | if (rp->descr_dma & ~(TX_RNG_CFIG_STADDR_BASE | |
| 4701 | TX_RNG_CFIG_STADDR)) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4702 | netdev_err(np->dev, "TX ring channel %d DMA addr (%llx) is not aligned\n", |
| 4703 | channel, (unsigned long long)rp->descr_dma); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4704 | return -EINVAL; |
| 4705 | } |
| 4706 | |
| 4707 | /* The length field in TX_RNG_CFIG is measured in 64-byte |
| 4708 | * blocks. rp->pending is the number of TX descriptors in |
| 4709 | * our ring, 8 bytes each, thus we divide by 8 bytes more |
| 4710 | * to get the proper value the chip wants. |
| 4711 | */ |
| 4712 | ring_len = (rp->pending / 8); |
| 4713 | |
| 4714 | val = ((ring_len << TX_RNG_CFIG_LEN_SHIFT) | |
| 4715 | rp->descr_dma); |
| 4716 | nw64(TX_RNG_CFIG(channel), val); |
| 4717 | |
| 4718 | if (((rp->mbox_dma >> 32) & ~TXDMA_MBH_MBADDR) || |
| 4719 | ((u32)rp->mbox_dma & ~TXDMA_MBL_MBADDR)) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 4720 | netdev_err(np->dev, "TX ring channel %d MBOX addr (%llx) has invalid bits\n", |
| 4721 | channel, (unsigned long long)rp->mbox_dma); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4722 | return -EINVAL; |
| 4723 | } |
| 4724 | nw64(TXDMA_MBH(channel), rp->mbox_dma >> 32); |
| 4725 | nw64(TXDMA_MBL(channel), rp->mbox_dma & TXDMA_MBL_MBADDR); |
| 4726 | |
| 4727 | nw64(TX_CS(channel), 0); |
| 4728 | |
| 4729 | rp->last_pkt_cnt = 0; |
| 4730 | |
| 4731 | return 0; |
| 4732 | } |
| 4733 | |
| 4734 | static void niu_init_rdc_groups(struct niu *np) |
| 4735 | { |
| 4736 | struct niu_rdc_tables *tp = &np->parent->rdc_group_cfg[np->port]; |
| 4737 | int i, first_table_num = tp->first_table_num; |
| 4738 | |
| 4739 | for (i = 0; i < tp->num_tables; i++) { |
| 4740 | struct rdc_table *tbl = &tp->tables[i]; |
| 4741 | int this_table = first_table_num + i; |
| 4742 | int slot; |
| 4743 | |
| 4744 | for (slot = 0; slot < NIU_RDC_TABLE_SLOTS; slot++) |
| 4745 | nw64(RDC_TBL(this_table, slot), |
| 4746 | tbl->rxdma_channel[slot]); |
| 4747 | } |
| 4748 | |
| 4749 | nw64(DEF_RDC(np->port), np->parent->rdc_default[np->port]); |
| 4750 | } |
| 4751 | |
| 4752 | static void niu_init_drr_weight(struct niu *np) |
| 4753 | { |
| 4754 | int type = phy_decode(np->parent->port_phy, np->port); |
| 4755 | u64 val; |
| 4756 | |
| 4757 | switch (type) { |
| 4758 | case PORT_TYPE_10G: |
| 4759 | val = PT_DRR_WEIGHT_DEFAULT_10G; |
| 4760 | break; |
| 4761 | |
| 4762 | case PORT_TYPE_1G: |
| 4763 | default: |
| 4764 | val = PT_DRR_WEIGHT_DEFAULT_1G; |
| 4765 | break; |
| 4766 | } |
| 4767 | nw64(PT_DRR_WT(np->port), val); |
| 4768 | } |
| 4769 | |
| 4770 | static int niu_init_hostinfo(struct niu *np) |
| 4771 | { |
| 4772 | struct niu_parent *parent = np->parent; |
| 4773 | struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port]; |
| 4774 | int i, err, num_alt = niu_num_alt_addr(np); |
| 4775 | int first_rdc_table = tp->first_table_num; |
| 4776 | |
| 4777 | err = niu_set_primary_mac_rdc_table(np, first_rdc_table, 1); |
| 4778 | if (err) |
| 4779 | return err; |
| 4780 | |
| 4781 | err = niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1); |
| 4782 | if (err) |
| 4783 | return err; |
| 4784 | |
| 4785 | for (i = 0; i < num_alt; i++) { |
| 4786 | err = niu_set_alt_mac_rdc_table(np, i, first_rdc_table, 1); |
| 4787 | if (err) |
| 4788 | return err; |
| 4789 | } |
| 4790 | |
| 4791 | return 0; |
| 4792 | } |
| 4793 | |
| 4794 | static int niu_rx_channel_reset(struct niu *np, int channel) |
| 4795 | { |
| 4796 | return niu_set_and_wait_clear(np, RXDMA_CFIG1(channel), |
| 4797 | RXDMA_CFIG1_RST, 1000, 10, |
| 4798 | "RXDMA_CFIG1"); |
| 4799 | } |
| 4800 | |
| 4801 | static int niu_rx_channel_lpage_init(struct niu *np, int channel) |
| 4802 | { |
| 4803 | u64 val; |
| 4804 | |
| 4805 | nw64(RX_LOG_MASK1(channel), 0); |
| 4806 | nw64(RX_LOG_VAL1(channel), 0); |
| 4807 | nw64(RX_LOG_MASK2(channel), 0); |
| 4808 | nw64(RX_LOG_VAL2(channel), 0); |
| 4809 | nw64(RX_LOG_PAGE_RELO1(channel), 0); |
| 4810 | nw64(RX_LOG_PAGE_RELO2(channel), 0); |
| 4811 | nw64(RX_LOG_PAGE_HDL(channel), 0); |
| 4812 | |
| 4813 | val = (u64)np->port << RX_LOG_PAGE_VLD_FUNC_SHIFT; |
| 4814 | val |= (RX_LOG_PAGE_VLD_PAGE0 | RX_LOG_PAGE_VLD_PAGE1); |
| 4815 | nw64(RX_LOG_PAGE_VLD(channel), val); |
| 4816 | |
| 4817 | return 0; |
| 4818 | } |
| 4819 | |
| 4820 | static void niu_rx_channel_wred_init(struct niu *np, struct rx_ring_info *rp) |
| 4821 | { |
| 4822 | u64 val; |
| 4823 | |
| 4824 | val = (((u64)rp->nonsyn_window << RDC_RED_PARA_WIN_SHIFT) | |
| 4825 | ((u64)rp->nonsyn_threshold << RDC_RED_PARA_THRE_SHIFT) | |
| 4826 | ((u64)rp->syn_window << RDC_RED_PARA_WIN_SYN_SHIFT) | |
| 4827 | ((u64)rp->syn_threshold << RDC_RED_PARA_THRE_SYN_SHIFT)); |
| 4828 | nw64(RDC_RED_PARA(rp->rx_channel), val); |
| 4829 | } |
| 4830 | |
| 4831 | static int niu_compute_rbr_cfig_b(struct rx_ring_info *rp, u64 *ret) |
| 4832 | { |
| 4833 | u64 val = 0; |
| 4834 | |
David S. Miller | efb6c73 | 2009-04-08 15:52:16 -0700 | [diff] [blame] | 4835 | *ret = 0; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4836 | switch (rp->rbr_block_size) { |
| 4837 | case 4 * 1024: |
| 4838 | val |= (RBR_BLKSIZE_4K << RBR_CFIG_B_BLKSIZE_SHIFT); |
| 4839 | break; |
| 4840 | case 8 * 1024: |
| 4841 | val |= (RBR_BLKSIZE_8K << RBR_CFIG_B_BLKSIZE_SHIFT); |
| 4842 | break; |
| 4843 | case 16 * 1024: |
| 4844 | val |= (RBR_BLKSIZE_16K << RBR_CFIG_B_BLKSIZE_SHIFT); |
| 4845 | break; |
| 4846 | case 32 * 1024: |
| 4847 | val |= (RBR_BLKSIZE_32K << RBR_CFIG_B_BLKSIZE_SHIFT); |
| 4848 | break; |
| 4849 | default: |
| 4850 | return -EINVAL; |
| 4851 | } |
| 4852 | val |= RBR_CFIG_B_VLD2; |
| 4853 | switch (rp->rbr_sizes[2]) { |
| 4854 | case 2 * 1024: |
| 4855 | val |= (RBR_BUFSZ2_2K << RBR_CFIG_B_BUFSZ2_SHIFT); |
| 4856 | break; |
| 4857 | case 4 * 1024: |
| 4858 | val |= (RBR_BUFSZ2_4K << RBR_CFIG_B_BUFSZ2_SHIFT); |
| 4859 | break; |
| 4860 | case 8 * 1024: |
| 4861 | val |= (RBR_BUFSZ2_8K << RBR_CFIG_B_BUFSZ2_SHIFT); |
| 4862 | break; |
| 4863 | case 16 * 1024: |
| 4864 | val |= (RBR_BUFSZ2_16K << RBR_CFIG_B_BUFSZ2_SHIFT); |
| 4865 | break; |
| 4866 | |
| 4867 | default: |
| 4868 | return -EINVAL; |
| 4869 | } |
| 4870 | val |= RBR_CFIG_B_VLD1; |
| 4871 | switch (rp->rbr_sizes[1]) { |
| 4872 | case 1 * 1024: |
| 4873 | val |= (RBR_BUFSZ1_1K << RBR_CFIG_B_BUFSZ1_SHIFT); |
| 4874 | break; |
| 4875 | case 2 * 1024: |
| 4876 | val |= (RBR_BUFSZ1_2K << RBR_CFIG_B_BUFSZ1_SHIFT); |
| 4877 | break; |
| 4878 | case 4 * 1024: |
| 4879 | val |= (RBR_BUFSZ1_4K << RBR_CFIG_B_BUFSZ1_SHIFT); |
| 4880 | break; |
| 4881 | case 8 * 1024: |
| 4882 | val |= (RBR_BUFSZ1_8K << RBR_CFIG_B_BUFSZ1_SHIFT); |
| 4883 | break; |
| 4884 | |
| 4885 | default: |
| 4886 | return -EINVAL; |
| 4887 | } |
| 4888 | val |= RBR_CFIG_B_VLD0; |
| 4889 | switch (rp->rbr_sizes[0]) { |
| 4890 | case 256: |
| 4891 | val |= (RBR_BUFSZ0_256 << RBR_CFIG_B_BUFSZ0_SHIFT); |
| 4892 | break; |
| 4893 | case 512: |
| 4894 | val |= (RBR_BUFSZ0_512 << RBR_CFIG_B_BUFSZ0_SHIFT); |
| 4895 | break; |
| 4896 | case 1 * 1024: |
| 4897 | val |= (RBR_BUFSZ0_1K << RBR_CFIG_B_BUFSZ0_SHIFT); |
| 4898 | break; |
| 4899 | case 2 * 1024: |
| 4900 | val |= (RBR_BUFSZ0_2K << RBR_CFIG_B_BUFSZ0_SHIFT); |
| 4901 | break; |
| 4902 | |
| 4903 | default: |
| 4904 | return -EINVAL; |
| 4905 | } |
| 4906 | |
| 4907 | *ret = val; |
| 4908 | return 0; |
| 4909 | } |
| 4910 | |
| 4911 | static int niu_enable_rx_channel(struct niu *np, int channel, int on) |
| 4912 | { |
| 4913 | u64 val = nr64(RXDMA_CFIG1(channel)); |
| 4914 | int limit; |
| 4915 | |
| 4916 | if (on) |
| 4917 | val |= RXDMA_CFIG1_EN; |
| 4918 | else |
| 4919 | val &= ~RXDMA_CFIG1_EN; |
| 4920 | nw64(RXDMA_CFIG1(channel), val); |
| 4921 | |
| 4922 | limit = 1000; |
| 4923 | while (--limit > 0) { |
| 4924 | if (nr64(RXDMA_CFIG1(channel)) & RXDMA_CFIG1_QST) |
| 4925 | break; |
| 4926 | udelay(10); |
| 4927 | } |
| 4928 | if (limit <= 0) |
| 4929 | return -ENODEV; |
| 4930 | return 0; |
| 4931 | } |
| 4932 | |
| 4933 | static int niu_init_one_rx_channel(struct niu *np, struct rx_ring_info *rp) |
| 4934 | { |
| 4935 | int err, channel = rp->rx_channel; |
| 4936 | u64 val; |
| 4937 | |
| 4938 | err = niu_rx_channel_reset(np, channel); |
| 4939 | if (err) |
| 4940 | return err; |
| 4941 | |
| 4942 | err = niu_rx_channel_lpage_init(np, channel); |
| 4943 | if (err) |
| 4944 | return err; |
| 4945 | |
| 4946 | niu_rx_channel_wred_init(np, rp); |
| 4947 | |
| 4948 | nw64(RX_DMA_ENT_MSK(channel), RX_DMA_ENT_MSK_RBR_EMPTY); |
| 4949 | nw64(RX_DMA_CTL_STAT(channel), |
| 4950 | (RX_DMA_CTL_STAT_MEX | |
| 4951 | RX_DMA_CTL_STAT_RCRTHRES | |
| 4952 | RX_DMA_CTL_STAT_RCRTO | |
| 4953 | RX_DMA_CTL_STAT_RBR_EMPTY)); |
| 4954 | nw64(RXDMA_CFIG1(channel), rp->mbox_dma >> 32); |
David S. Miller | 3cfa856 | 2010-04-22 15:48:17 -0700 | [diff] [blame] | 4955 | nw64(RXDMA_CFIG2(channel), |
| 4956 | ((rp->mbox_dma & RXDMA_CFIG2_MBADDR_L) | |
| 4957 | RXDMA_CFIG2_FULL_HDR)); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 4958 | nw64(RBR_CFIG_A(channel), |
| 4959 | ((u64)rp->rbr_table_size << RBR_CFIG_A_LEN_SHIFT) | |
| 4960 | (rp->rbr_dma & (RBR_CFIG_A_STADDR_BASE | RBR_CFIG_A_STADDR))); |
| 4961 | err = niu_compute_rbr_cfig_b(rp, &val); |
| 4962 | if (err) |
| 4963 | return err; |
| 4964 | nw64(RBR_CFIG_B(channel), val); |
| 4965 | nw64(RCRCFIG_A(channel), |
| 4966 | ((u64)rp->rcr_table_size << RCRCFIG_A_LEN_SHIFT) | |
| 4967 | (rp->rcr_dma & (RCRCFIG_A_STADDR_BASE | RCRCFIG_A_STADDR))); |
| 4968 | nw64(RCRCFIG_B(channel), |
| 4969 | ((u64)rp->rcr_pkt_threshold << RCRCFIG_B_PTHRES_SHIFT) | |
| 4970 | RCRCFIG_B_ENTOUT | |
| 4971 | ((u64)rp->rcr_timeout << RCRCFIG_B_TIMEOUT_SHIFT)); |
| 4972 | |
| 4973 | err = niu_enable_rx_channel(np, channel, 1); |
| 4974 | if (err) |
| 4975 | return err; |
| 4976 | |
| 4977 | nw64(RBR_KICK(channel), rp->rbr_index); |
| 4978 | |
| 4979 | val = nr64(RX_DMA_CTL_STAT(channel)); |
| 4980 | val |= RX_DMA_CTL_STAT_RBR_EMPTY; |
| 4981 | nw64(RX_DMA_CTL_STAT(channel), val); |
| 4982 | |
| 4983 | return 0; |
| 4984 | } |
| 4985 | |
| 4986 | static int niu_init_rx_channels(struct niu *np) |
| 4987 | { |
| 4988 | unsigned long flags; |
| 4989 | u64 seed = jiffies_64; |
| 4990 | int err, i; |
| 4991 | |
| 4992 | niu_lock_parent(np, flags); |
| 4993 | nw64(RX_DMA_CK_DIV, np->parent->rxdma_clock_divider); |
| 4994 | nw64(RED_RAN_INIT, RED_RAN_INIT_OPMODE | (seed & RED_RAN_INIT_VAL)); |
| 4995 | niu_unlock_parent(np, flags); |
| 4996 | |
| 4997 | /* XXX RXDMA 32bit mode? XXX */ |
| 4998 | |
| 4999 | niu_init_rdc_groups(np); |
| 5000 | niu_init_drr_weight(np); |
| 5001 | |
| 5002 | err = niu_init_hostinfo(np); |
| 5003 | if (err) |
| 5004 | return err; |
| 5005 | |
| 5006 | for (i = 0; i < np->num_rx_rings; i++) { |
| 5007 | struct rx_ring_info *rp = &np->rx_rings[i]; |
| 5008 | |
| 5009 | err = niu_init_one_rx_channel(np, rp); |
| 5010 | if (err) |
| 5011 | return err; |
| 5012 | } |
| 5013 | |
| 5014 | return 0; |
| 5015 | } |
| 5016 | |
| 5017 | static int niu_set_ip_frag_rule(struct niu *np) |
| 5018 | { |
| 5019 | struct niu_parent *parent = np->parent; |
| 5020 | struct niu_classifier *cp = &np->clas; |
| 5021 | struct niu_tcam_entry *tp; |
| 5022 | int index, err; |
| 5023 | |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 5024 | index = cp->tcam_top; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5025 | tp = &parent->tcam[index]; |
| 5026 | |
| 5027 | /* Note that the noport bit is the same in both ipv4 and |
| 5028 | * ipv6 format TCAM entries. |
| 5029 | */ |
| 5030 | memset(tp, 0, sizeof(*tp)); |
| 5031 | tp->key[1] = TCAM_V4KEY1_NOPORT; |
| 5032 | tp->key_mask[1] = TCAM_V4KEY1_NOPORT; |
| 5033 | tp->assoc_data = (TCAM_ASSOCDATA_TRES_USE_OFFSET | |
| 5034 | ((u64)0 << TCAM_ASSOCDATA_OFFSET_SHIFT)); |
| 5035 | err = tcam_write(np, index, tp->key, tp->key_mask); |
| 5036 | if (err) |
| 5037 | return err; |
| 5038 | err = tcam_assoc_write(np, index, tp->assoc_data); |
| 5039 | if (err) |
| 5040 | return err; |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 5041 | tp->valid = 1; |
| 5042 | cp->tcam_valid_entries++; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5043 | |
| 5044 | return 0; |
| 5045 | } |
| 5046 | |
| 5047 | static int niu_init_classifier_hw(struct niu *np) |
| 5048 | { |
| 5049 | struct niu_parent *parent = np->parent; |
| 5050 | struct niu_classifier *cp = &np->clas; |
| 5051 | int i, err; |
| 5052 | |
| 5053 | nw64(H1POLY, cp->h1_init); |
| 5054 | nw64(H2POLY, cp->h2_init); |
| 5055 | |
| 5056 | err = niu_init_hostinfo(np); |
| 5057 | if (err) |
| 5058 | return err; |
| 5059 | |
| 5060 | for (i = 0; i < ENET_VLAN_TBL_NUM_ENTRIES; i++) { |
| 5061 | struct niu_vlan_rdc *vp = &cp->vlan_mappings[i]; |
| 5062 | |
| 5063 | vlan_tbl_write(np, i, np->port, |
| 5064 | vp->vlan_pref, vp->rdc_num); |
| 5065 | } |
| 5066 | |
| 5067 | for (i = 0; i < cp->num_alt_mac_mappings; i++) { |
| 5068 | struct niu_altmac_rdc *ap = &cp->alt_mac_mappings[i]; |
| 5069 | |
| 5070 | err = niu_set_alt_mac_rdc_table(np, ap->alt_mac_num, |
| 5071 | ap->rdc_num, ap->mac_pref); |
| 5072 | if (err) |
| 5073 | return err; |
| 5074 | } |
| 5075 | |
| 5076 | for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_SCTP_IPV6; i++) { |
| 5077 | int index = i - CLASS_CODE_USER_PROG1; |
| 5078 | |
| 5079 | err = niu_set_tcam_key(np, i, parent->tcam_key[index]); |
| 5080 | if (err) |
| 5081 | return err; |
| 5082 | err = niu_set_flow_key(np, i, parent->flow_key[index]); |
| 5083 | if (err) |
| 5084 | return err; |
| 5085 | } |
| 5086 | |
| 5087 | err = niu_set_ip_frag_rule(np); |
| 5088 | if (err) |
| 5089 | return err; |
| 5090 | |
| 5091 | tcam_enable(np, 1); |
| 5092 | |
| 5093 | return 0; |
| 5094 | } |
| 5095 | |
| 5096 | static int niu_zcp_write(struct niu *np, int index, u64 *data) |
| 5097 | { |
| 5098 | nw64(ZCP_RAM_DATA0, data[0]); |
| 5099 | nw64(ZCP_RAM_DATA1, data[1]); |
| 5100 | nw64(ZCP_RAM_DATA2, data[2]); |
| 5101 | nw64(ZCP_RAM_DATA3, data[3]); |
| 5102 | nw64(ZCP_RAM_DATA4, data[4]); |
| 5103 | nw64(ZCP_RAM_BE, ZCP_RAM_BE_VAL); |
| 5104 | nw64(ZCP_RAM_ACC, |
| 5105 | (ZCP_RAM_ACC_WRITE | |
| 5106 | (0 << ZCP_RAM_ACC_ZFCID_SHIFT) | |
| 5107 | (ZCP_RAM_SEL_CFIFO(np->port) << ZCP_RAM_ACC_RAM_SEL_SHIFT))); |
| 5108 | |
| 5109 | return niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY, |
| 5110 | 1000, 100); |
| 5111 | } |
| 5112 | |
| 5113 | static int niu_zcp_read(struct niu *np, int index, u64 *data) |
| 5114 | { |
| 5115 | int err; |
| 5116 | |
| 5117 | err = niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY, |
| 5118 | 1000, 100); |
| 5119 | if (err) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 5120 | netdev_err(np->dev, "ZCP read busy won't clear, ZCP_RAM_ACC[%llx]\n", |
| 5121 | (unsigned long long)nr64(ZCP_RAM_ACC)); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5122 | return err; |
| 5123 | } |
| 5124 | |
| 5125 | nw64(ZCP_RAM_ACC, |
| 5126 | (ZCP_RAM_ACC_READ | |
| 5127 | (0 << ZCP_RAM_ACC_ZFCID_SHIFT) | |
| 5128 | (ZCP_RAM_SEL_CFIFO(np->port) << ZCP_RAM_ACC_RAM_SEL_SHIFT))); |
| 5129 | |
| 5130 | err = niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY, |
| 5131 | 1000, 100); |
| 5132 | if (err) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 5133 | netdev_err(np->dev, "ZCP read busy2 won't clear, ZCP_RAM_ACC[%llx]\n", |
| 5134 | (unsigned long long)nr64(ZCP_RAM_ACC)); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5135 | return err; |
| 5136 | } |
| 5137 | |
| 5138 | data[0] = nr64(ZCP_RAM_DATA0); |
| 5139 | data[1] = nr64(ZCP_RAM_DATA1); |
| 5140 | data[2] = nr64(ZCP_RAM_DATA2); |
| 5141 | data[3] = nr64(ZCP_RAM_DATA3); |
| 5142 | data[4] = nr64(ZCP_RAM_DATA4); |
| 5143 | |
| 5144 | return 0; |
| 5145 | } |
| 5146 | |
| 5147 | static void niu_zcp_cfifo_reset(struct niu *np) |
| 5148 | { |
| 5149 | u64 val = nr64(RESET_CFIFO); |
| 5150 | |
| 5151 | val |= RESET_CFIFO_RST(np->port); |
| 5152 | nw64(RESET_CFIFO, val); |
| 5153 | udelay(10); |
| 5154 | |
| 5155 | val &= ~RESET_CFIFO_RST(np->port); |
| 5156 | nw64(RESET_CFIFO, val); |
| 5157 | } |
| 5158 | |
| 5159 | static int niu_init_zcp(struct niu *np) |
| 5160 | { |
| 5161 | u64 data[5], rbuf[5]; |
| 5162 | int i, max, err; |
| 5163 | |
| 5164 | if (np->parent->plat_type != PLAT_TYPE_NIU) { |
| 5165 | if (np->port == 0 || np->port == 1) |
| 5166 | max = ATLAS_P0_P1_CFIFO_ENTRIES; |
| 5167 | else |
| 5168 | max = ATLAS_P2_P3_CFIFO_ENTRIES; |
| 5169 | } else |
| 5170 | max = NIU_CFIFO_ENTRIES; |
| 5171 | |
| 5172 | data[0] = 0; |
| 5173 | data[1] = 0; |
| 5174 | data[2] = 0; |
| 5175 | data[3] = 0; |
| 5176 | data[4] = 0; |
| 5177 | |
| 5178 | for (i = 0; i < max; i++) { |
| 5179 | err = niu_zcp_write(np, i, data); |
| 5180 | if (err) |
| 5181 | return err; |
| 5182 | err = niu_zcp_read(np, i, rbuf); |
| 5183 | if (err) |
| 5184 | return err; |
| 5185 | } |
| 5186 | |
| 5187 | niu_zcp_cfifo_reset(np); |
| 5188 | nw64(CFIFO_ECC(np->port), 0); |
| 5189 | nw64(ZCP_INT_STAT, ZCP_INT_STAT_ALL); |
| 5190 | (void) nr64(ZCP_INT_STAT); |
| 5191 | nw64(ZCP_INT_MASK, ZCP_INT_MASK_ALL); |
| 5192 | |
| 5193 | return 0; |
| 5194 | } |
| 5195 | |
| 5196 | static void niu_ipp_write(struct niu *np, int index, u64 *data) |
| 5197 | { |
| 5198 | u64 val = nr64_ipp(IPP_CFIG); |
| 5199 | |
| 5200 | nw64_ipp(IPP_CFIG, val | IPP_CFIG_DFIFO_PIO_W); |
| 5201 | nw64_ipp(IPP_DFIFO_WR_PTR, index); |
| 5202 | nw64_ipp(IPP_DFIFO_WR0, data[0]); |
| 5203 | nw64_ipp(IPP_DFIFO_WR1, data[1]); |
| 5204 | nw64_ipp(IPP_DFIFO_WR2, data[2]); |
| 5205 | nw64_ipp(IPP_DFIFO_WR3, data[3]); |
| 5206 | nw64_ipp(IPP_DFIFO_WR4, data[4]); |
| 5207 | nw64_ipp(IPP_CFIG, val & ~IPP_CFIG_DFIFO_PIO_W); |
| 5208 | } |
| 5209 | |
| 5210 | static void niu_ipp_read(struct niu *np, int index, u64 *data) |
| 5211 | { |
| 5212 | nw64_ipp(IPP_DFIFO_RD_PTR, index); |
| 5213 | data[0] = nr64_ipp(IPP_DFIFO_RD0); |
| 5214 | data[1] = nr64_ipp(IPP_DFIFO_RD1); |
| 5215 | data[2] = nr64_ipp(IPP_DFIFO_RD2); |
| 5216 | data[3] = nr64_ipp(IPP_DFIFO_RD3); |
| 5217 | data[4] = nr64_ipp(IPP_DFIFO_RD4); |
| 5218 | } |
| 5219 | |
| 5220 | static int niu_ipp_reset(struct niu *np) |
| 5221 | { |
| 5222 | return niu_set_and_wait_clear_ipp(np, IPP_CFIG, IPP_CFIG_SOFT_RST, |
| 5223 | 1000, 100, "IPP_CFIG"); |
| 5224 | } |
| 5225 | |
| 5226 | static int niu_init_ipp(struct niu *np) |
| 5227 | { |
| 5228 | u64 data[5], rbuf[5], val; |
| 5229 | int i, max, err; |
| 5230 | |
| 5231 | if (np->parent->plat_type != PLAT_TYPE_NIU) { |
| 5232 | if (np->port == 0 || np->port == 1) |
| 5233 | max = ATLAS_P0_P1_DFIFO_ENTRIES; |
| 5234 | else |
| 5235 | max = ATLAS_P2_P3_DFIFO_ENTRIES; |
| 5236 | } else |
| 5237 | max = NIU_DFIFO_ENTRIES; |
| 5238 | |
| 5239 | data[0] = 0; |
| 5240 | data[1] = 0; |
| 5241 | data[2] = 0; |
| 5242 | data[3] = 0; |
| 5243 | data[4] = 0; |
| 5244 | |
| 5245 | for (i = 0; i < max; i++) { |
| 5246 | niu_ipp_write(np, i, data); |
| 5247 | niu_ipp_read(np, i, rbuf); |
| 5248 | } |
| 5249 | |
| 5250 | (void) nr64_ipp(IPP_INT_STAT); |
| 5251 | (void) nr64_ipp(IPP_INT_STAT); |
| 5252 | |
| 5253 | err = niu_ipp_reset(np); |
| 5254 | if (err) |
| 5255 | return err; |
| 5256 | |
| 5257 | (void) nr64_ipp(IPP_PKT_DIS); |
| 5258 | (void) nr64_ipp(IPP_BAD_CS_CNT); |
| 5259 | (void) nr64_ipp(IPP_ECC); |
| 5260 | |
| 5261 | (void) nr64_ipp(IPP_INT_STAT); |
| 5262 | |
| 5263 | nw64_ipp(IPP_MSK, ~IPP_MSK_ALL); |
| 5264 | |
| 5265 | val = nr64_ipp(IPP_CFIG); |
| 5266 | val &= ~IPP_CFIG_IP_MAX_PKT; |
| 5267 | val |= (IPP_CFIG_IPP_ENABLE | |
| 5268 | IPP_CFIG_DFIFO_ECC_EN | |
| 5269 | IPP_CFIG_DROP_BAD_CRC | |
| 5270 | IPP_CFIG_CKSUM_EN | |
| 5271 | (0x1ffff << IPP_CFIG_IP_MAX_PKT_SHIFT)); |
| 5272 | nw64_ipp(IPP_CFIG, val); |
| 5273 | |
| 5274 | return 0; |
| 5275 | } |
| 5276 | |
Mirko Lindner | 0c3b091 | 2007-12-05 21:10:02 -0800 | [diff] [blame] | 5277 | static void niu_handle_led(struct niu *np, int status) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5278 | { |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5279 | u64 val; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5280 | val = nr64_mac(XMAC_CONFIG); |
| 5281 | |
| 5282 | if ((np->flags & NIU_FLAGS_10G) != 0 && |
| 5283 | (np->flags & NIU_FLAGS_FIBER) != 0) { |
Mirko Lindner | 0c3b091 | 2007-12-05 21:10:02 -0800 | [diff] [blame] | 5284 | if (status) { |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5285 | val |= XMAC_CONFIG_LED_POLARITY; |
| 5286 | val &= ~XMAC_CONFIG_FORCE_LED_ON; |
| 5287 | } else { |
| 5288 | val |= XMAC_CONFIG_FORCE_LED_ON; |
| 5289 | val &= ~XMAC_CONFIG_LED_POLARITY; |
| 5290 | } |
| 5291 | } |
| 5292 | |
Mirko Lindner | 0c3b091 | 2007-12-05 21:10:02 -0800 | [diff] [blame] | 5293 | nw64_mac(XMAC_CONFIG, val); |
| 5294 | } |
| 5295 | |
| 5296 | static void niu_init_xif_xmac(struct niu *np) |
| 5297 | { |
| 5298 | struct niu_link_config *lp = &np->link_config; |
| 5299 | u64 val; |
| 5300 | |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 5301 | if (np->flags & NIU_FLAGS_XCVR_SERDES) { |
| 5302 | val = nr64(MIF_CONFIG); |
| 5303 | val |= MIF_CONFIG_ATCA_GE; |
| 5304 | nw64(MIF_CONFIG, val); |
| 5305 | } |
| 5306 | |
Mirko Lindner | 0c3b091 | 2007-12-05 21:10:02 -0800 | [diff] [blame] | 5307 | val = nr64_mac(XMAC_CONFIG); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5308 | val &= ~XMAC_CONFIG_SEL_POR_CLK_SRC; |
| 5309 | |
| 5310 | val |= XMAC_CONFIG_TX_OUTPUT_EN; |
| 5311 | |
| 5312 | if (lp->loopback_mode == LOOPBACK_MAC) { |
| 5313 | val &= ~XMAC_CONFIG_SEL_POR_CLK_SRC; |
| 5314 | val |= XMAC_CONFIG_LOOPBACK; |
| 5315 | } else { |
| 5316 | val &= ~XMAC_CONFIG_LOOPBACK; |
| 5317 | } |
| 5318 | |
| 5319 | if (np->flags & NIU_FLAGS_10G) { |
| 5320 | val &= ~XMAC_CONFIG_LFS_DISABLE; |
| 5321 | } else { |
| 5322 | val |= XMAC_CONFIG_LFS_DISABLE; |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 5323 | if (!(np->flags & NIU_FLAGS_FIBER) && |
| 5324 | !(np->flags & NIU_FLAGS_XCVR_SERDES)) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5325 | val |= XMAC_CONFIG_1G_PCS_BYPASS; |
| 5326 | else |
| 5327 | val &= ~XMAC_CONFIG_1G_PCS_BYPASS; |
| 5328 | } |
| 5329 | |
| 5330 | val &= ~XMAC_CONFIG_10G_XPCS_BYPASS; |
| 5331 | |
| 5332 | if (lp->active_speed == SPEED_100) |
| 5333 | val |= XMAC_CONFIG_SEL_CLK_25MHZ; |
| 5334 | else |
| 5335 | val &= ~XMAC_CONFIG_SEL_CLK_25MHZ; |
| 5336 | |
| 5337 | nw64_mac(XMAC_CONFIG, val); |
| 5338 | |
| 5339 | val = nr64_mac(XMAC_CONFIG); |
| 5340 | val &= ~XMAC_CONFIG_MODE_MASK; |
| 5341 | if (np->flags & NIU_FLAGS_10G) { |
| 5342 | val |= XMAC_CONFIG_MODE_XGMII; |
| 5343 | } else { |
Constantin Baranov | 38bb045d | 2009-02-18 17:53:20 -0800 | [diff] [blame] | 5344 | if (lp->active_speed == SPEED_1000) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5345 | val |= XMAC_CONFIG_MODE_GMII; |
Constantin Baranov | 38bb045d | 2009-02-18 17:53:20 -0800 | [diff] [blame] | 5346 | else |
| 5347 | val |= XMAC_CONFIG_MODE_MII; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5348 | } |
| 5349 | |
| 5350 | nw64_mac(XMAC_CONFIG, val); |
| 5351 | } |
| 5352 | |
| 5353 | static void niu_init_xif_bmac(struct niu *np) |
| 5354 | { |
| 5355 | struct niu_link_config *lp = &np->link_config; |
| 5356 | u64 val; |
| 5357 | |
| 5358 | val = BMAC_XIF_CONFIG_TX_OUTPUT_EN; |
| 5359 | |
| 5360 | if (lp->loopback_mode == LOOPBACK_MAC) |
| 5361 | val |= BMAC_XIF_CONFIG_MII_LOOPBACK; |
| 5362 | else |
| 5363 | val &= ~BMAC_XIF_CONFIG_MII_LOOPBACK; |
| 5364 | |
| 5365 | if (lp->active_speed == SPEED_1000) |
| 5366 | val |= BMAC_XIF_CONFIG_GMII_MODE; |
| 5367 | else |
| 5368 | val &= ~BMAC_XIF_CONFIG_GMII_MODE; |
| 5369 | |
| 5370 | val &= ~(BMAC_XIF_CONFIG_LINK_LED | |
| 5371 | BMAC_XIF_CONFIG_LED_POLARITY); |
| 5372 | |
| 5373 | if (!(np->flags & NIU_FLAGS_10G) && |
| 5374 | !(np->flags & NIU_FLAGS_FIBER) && |
| 5375 | lp->active_speed == SPEED_100) |
| 5376 | val |= BMAC_XIF_CONFIG_25MHZ_CLOCK; |
| 5377 | else |
| 5378 | val &= ~BMAC_XIF_CONFIG_25MHZ_CLOCK; |
| 5379 | |
| 5380 | nw64_mac(BMAC_XIF_CONFIG, val); |
| 5381 | } |
| 5382 | |
| 5383 | static void niu_init_xif(struct niu *np) |
| 5384 | { |
| 5385 | if (np->flags & NIU_FLAGS_XMAC) |
| 5386 | niu_init_xif_xmac(np); |
| 5387 | else |
| 5388 | niu_init_xif_bmac(np); |
| 5389 | } |
| 5390 | |
| 5391 | static void niu_pcs_mii_reset(struct niu *np) |
| 5392 | { |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 5393 | int limit = 1000; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5394 | u64 val = nr64_pcs(PCS_MII_CTL); |
| 5395 | val |= PCS_MII_CTL_RST; |
| 5396 | nw64_pcs(PCS_MII_CTL, val); |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 5397 | while ((--limit >= 0) && (val & PCS_MII_CTL_RST)) { |
| 5398 | udelay(100); |
| 5399 | val = nr64_pcs(PCS_MII_CTL); |
| 5400 | } |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5401 | } |
| 5402 | |
| 5403 | static void niu_xpcs_reset(struct niu *np) |
| 5404 | { |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 5405 | int limit = 1000; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5406 | u64 val = nr64_xpcs(XPCS_CONTROL1); |
| 5407 | val |= XPCS_CONTROL1_RESET; |
| 5408 | nw64_xpcs(XPCS_CONTROL1, val); |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 5409 | while ((--limit >= 0) && (val & XPCS_CONTROL1_RESET)) { |
| 5410 | udelay(100); |
| 5411 | val = nr64_xpcs(XPCS_CONTROL1); |
| 5412 | } |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5413 | } |
| 5414 | |
| 5415 | static int niu_init_pcs(struct niu *np) |
| 5416 | { |
| 5417 | struct niu_link_config *lp = &np->link_config; |
| 5418 | u64 val; |
| 5419 | |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 5420 | switch (np->flags & (NIU_FLAGS_10G | |
| 5421 | NIU_FLAGS_FIBER | |
| 5422 | NIU_FLAGS_XCVR_SERDES)) { |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5423 | case NIU_FLAGS_FIBER: |
| 5424 | /* 1G fiber */ |
| 5425 | nw64_pcs(PCS_CONF, PCS_CONF_MASK | PCS_CONF_ENABLE); |
| 5426 | nw64_pcs(PCS_DPATH_MODE, 0); |
| 5427 | niu_pcs_mii_reset(np); |
| 5428 | break; |
| 5429 | |
| 5430 | case NIU_FLAGS_10G: |
| 5431 | case NIU_FLAGS_10G | NIU_FLAGS_FIBER: |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 5432 | case NIU_FLAGS_10G | NIU_FLAGS_XCVR_SERDES: |
| 5433 | /* 10G SERDES */ |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5434 | if (!(np->flags & NIU_FLAGS_XMAC)) |
| 5435 | return -EINVAL; |
| 5436 | |
| 5437 | /* 10G copper or fiber */ |
| 5438 | val = nr64_mac(XMAC_CONFIG); |
| 5439 | val &= ~XMAC_CONFIG_10G_XPCS_BYPASS; |
| 5440 | nw64_mac(XMAC_CONFIG, val); |
| 5441 | |
| 5442 | niu_xpcs_reset(np); |
| 5443 | |
| 5444 | val = nr64_xpcs(XPCS_CONTROL1); |
| 5445 | if (lp->loopback_mode == LOOPBACK_PHY) |
| 5446 | val |= XPCS_CONTROL1_LOOPBACK; |
| 5447 | else |
| 5448 | val &= ~XPCS_CONTROL1_LOOPBACK; |
| 5449 | nw64_xpcs(XPCS_CONTROL1, val); |
| 5450 | |
| 5451 | nw64_xpcs(XPCS_DESKEW_ERR_CNT, 0); |
| 5452 | (void) nr64_xpcs(XPCS_SYMERR_CNT01); |
| 5453 | (void) nr64_xpcs(XPCS_SYMERR_CNT23); |
| 5454 | break; |
| 5455 | |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 5456 | |
| 5457 | case NIU_FLAGS_XCVR_SERDES: |
| 5458 | /* 1G SERDES */ |
| 5459 | niu_pcs_mii_reset(np); |
| 5460 | nw64_pcs(PCS_CONF, PCS_CONF_MASK | PCS_CONF_ENABLE); |
| 5461 | nw64_pcs(PCS_DPATH_MODE, 0); |
| 5462 | break; |
| 5463 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5464 | case 0: |
| 5465 | /* 1G copper */ |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 5466 | case NIU_FLAGS_XCVR_SERDES | NIU_FLAGS_FIBER: |
| 5467 | /* 1G RGMII FIBER */ |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5468 | nw64_pcs(PCS_DPATH_MODE, PCS_DPATH_MODE_MII); |
| 5469 | niu_pcs_mii_reset(np); |
| 5470 | break; |
| 5471 | |
| 5472 | default: |
| 5473 | return -EINVAL; |
| 5474 | } |
| 5475 | |
| 5476 | return 0; |
| 5477 | } |
| 5478 | |
| 5479 | static int niu_reset_tx_xmac(struct niu *np) |
| 5480 | { |
| 5481 | return niu_set_and_wait_clear_mac(np, XTXMAC_SW_RST, |
| 5482 | (XTXMAC_SW_RST_REG_RS | |
| 5483 | XTXMAC_SW_RST_SOFT_RST), |
| 5484 | 1000, 100, "XTXMAC_SW_RST"); |
| 5485 | } |
| 5486 | |
| 5487 | static int niu_reset_tx_bmac(struct niu *np) |
| 5488 | { |
| 5489 | int limit; |
| 5490 | |
| 5491 | nw64_mac(BTXMAC_SW_RST, BTXMAC_SW_RST_RESET); |
| 5492 | limit = 1000; |
| 5493 | while (--limit >= 0) { |
| 5494 | if (!(nr64_mac(BTXMAC_SW_RST) & BTXMAC_SW_RST_RESET)) |
| 5495 | break; |
| 5496 | udelay(100); |
| 5497 | } |
| 5498 | if (limit < 0) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 5499 | dev_err(np->device, "Port %u TX BMAC would not reset, BTXMAC_SW_RST[%llx]\n", |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5500 | np->port, |
| 5501 | (unsigned long long) nr64_mac(BTXMAC_SW_RST)); |
| 5502 | return -ENODEV; |
| 5503 | } |
| 5504 | |
| 5505 | return 0; |
| 5506 | } |
| 5507 | |
| 5508 | static int niu_reset_tx_mac(struct niu *np) |
| 5509 | { |
| 5510 | if (np->flags & NIU_FLAGS_XMAC) |
| 5511 | return niu_reset_tx_xmac(np); |
| 5512 | else |
| 5513 | return niu_reset_tx_bmac(np); |
| 5514 | } |
| 5515 | |
| 5516 | static void niu_init_tx_xmac(struct niu *np, u64 min, u64 max) |
| 5517 | { |
| 5518 | u64 val; |
| 5519 | |
| 5520 | val = nr64_mac(XMAC_MIN); |
| 5521 | val &= ~(XMAC_MIN_TX_MIN_PKT_SIZE | |
| 5522 | XMAC_MIN_RX_MIN_PKT_SIZE); |
| 5523 | val |= (min << XMAC_MIN_RX_MIN_PKT_SIZE_SHFT); |
| 5524 | val |= (min << XMAC_MIN_TX_MIN_PKT_SIZE_SHFT); |
| 5525 | nw64_mac(XMAC_MIN, val); |
| 5526 | |
| 5527 | nw64_mac(XMAC_MAX, max); |
| 5528 | |
| 5529 | nw64_mac(XTXMAC_STAT_MSK, ~(u64)0); |
| 5530 | |
| 5531 | val = nr64_mac(XMAC_IPG); |
| 5532 | if (np->flags & NIU_FLAGS_10G) { |
| 5533 | val &= ~XMAC_IPG_IPG_XGMII; |
| 5534 | val |= (IPG_12_15_XGMII << XMAC_IPG_IPG_XGMII_SHIFT); |
| 5535 | } else { |
| 5536 | val &= ~XMAC_IPG_IPG_MII_GMII; |
| 5537 | val |= (IPG_12_MII_GMII << XMAC_IPG_IPG_MII_GMII_SHIFT); |
| 5538 | } |
| 5539 | nw64_mac(XMAC_IPG, val); |
| 5540 | |
| 5541 | val = nr64_mac(XMAC_CONFIG); |
| 5542 | val &= ~(XMAC_CONFIG_ALWAYS_NO_CRC | |
| 5543 | XMAC_CONFIG_STRETCH_MODE | |
| 5544 | XMAC_CONFIG_VAR_MIN_IPG_EN | |
| 5545 | XMAC_CONFIG_TX_ENABLE); |
| 5546 | nw64_mac(XMAC_CONFIG, val); |
| 5547 | |
| 5548 | nw64_mac(TXMAC_FRM_CNT, 0); |
| 5549 | nw64_mac(TXMAC_BYTE_CNT, 0); |
| 5550 | } |
| 5551 | |
| 5552 | static void niu_init_tx_bmac(struct niu *np, u64 min, u64 max) |
| 5553 | { |
| 5554 | u64 val; |
| 5555 | |
| 5556 | nw64_mac(BMAC_MIN_FRAME, min); |
| 5557 | nw64_mac(BMAC_MAX_FRAME, max); |
| 5558 | |
| 5559 | nw64_mac(BTXMAC_STATUS_MASK, ~(u64)0); |
| 5560 | nw64_mac(BMAC_CTRL_TYPE, 0x8808); |
| 5561 | nw64_mac(BMAC_PREAMBLE_SIZE, 7); |
| 5562 | |
| 5563 | val = nr64_mac(BTXMAC_CONFIG); |
| 5564 | val &= ~(BTXMAC_CONFIG_FCS_DISABLE | |
| 5565 | BTXMAC_CONFIG_ENABLE); |
| 5566 | nw64_mac(BTXMAC_CONFIG, val); |
| 5567 | } |
| 5568 | |
| 5569 | static void niu_init_tx_mac(struct niu *np) |
| 5570 | { |
| 5571 | u64 min, max; |
| 5572 | |
| 5573 | min = 64; |
| 5574 | if (np->dev->mtu > ETH_DATA_LEN) |
| 5575 | max = 9216; |
| 5576 | else |
| 5577 | max = 1522; |
| 5578 | |
| 5579 | /* The XMAC_MIN register only accepts values for TX min which |
| 5580 | * have the low 3 bits cleared. |
| 5581 | */ |
Jan Beulich | 8c87df4 | 2009-09-22 16:43:52 -0700 | [diff] [blame] | 5582 | BUG_ON(min & 0x7); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5583 | |
| 5584 | if (np->flags & NIU_FLAGS_XMAC) |
| 5585 | niu_init_tx_xmac(np, min, max); |
| 5586 | else |
| 5587 | niu_init_tx_bmac(np, min, max); |
| 5588 | } |
| 5589 | |
| 5590 | static int niu_reset_rx_xmac(struct niu *np) |
| 5591 | { |
| 5592 | int limit; |
| 5593 | |
| 5594 | nw64_mac(XRXMAC_SW_RST, |
| 5595 | XRXMAC_SW_RST_REG_RS | XRXMAC_SW_RST_SOFT_RST); |
| 5596 | limit = 1000; |
| 5597 | while (--limit >= 0) { |
| 5598 | if (!(nr64_mac(XRXMAC_SW_RST) & (XRXMAC_SW_RST_REG_RS | |
| 5599 | XRXMAC_SW_RST_SOFT_RST))) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 5600 | break; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5601 | udelay(100); |
| 5602 | } |
| 5603 | if (limit < 0) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 5604 | dev_err(np->device, "Port %u RX XMAC would not reset, XRXMAC_SW_RST[%llx]\n", |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5605 | np->port, |
| 5606 | (unsigned long long) nr64_mac(XRXMAC_SW_RST)); |
| 5607 | return -ENODEV; |
| 5608 | } |
| 5609 | |
| 5610 | return 0; |
| 5611 | } |
| 5612 | |
| 5613 | static int niu_reset_rx_bmac(struct niu *np) |
| 5614 | { |
| 5615 | int limit; |
| 5616 | |
| 5617 | nw64_mac(BRXMAC_SW_RST, BRXMAC_SW_RST_RESET); |
| 5618 | limit = 1000; |
| 5619 | while (--limit >= 0) { |
| 5620 | if (!(nr64_mac(BRXMAC_SW_RST) & BRXMAC_SW_RST_RESET)) |
| 5621 | break; |
| 5622 | udelay(100); |
| 5623 | } |
| 5624 | if (limit < 0) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 5625 | dev_err(np->device, "Port %u RX BMAC would not reset, BRXMAC_SW_RST[%llx]\n", |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5626 | np->port, |
| 5627 | (unsigned long long) nr64_mac(BRXMAC_SW_RST)); |
| 5628 | return -ENODEV; |
| 5629 | } |
| 5630 | |
| 5631 | return 0; |
| 5632 | } |
| 5633 | |
| 5634 | static int niu_reset_rx_mac(struct niu *np) |
| 5635 | { |
| 5636 | if (np->flags & NIU_FLAGS_XMAC) |
| 5637 | return niu_reset_rx_xmac(np); |
| 5638 | else |
| 5639 | return niu_reset_rx_bmac(np); |
| 5640 | } |
| 5641 | |
| 5642 | static void niu_init_rx_xmac(struct niu *np) |
| 5643 | { |
| 5644 | struct niu_parent *parent = np->parent; |
| 5645 | struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port]; |
| 5646 | int first_rdc_table = tp->first_table_num; |
| 5647 | unsigned long i; |
| 5648 | u64 val; |
| 5649 | |
| 5650 | nw64_mac(XMAC_ADD_FILT0, 0); |
| 5651 | nw64_mac(XMAC_ADD_FILT1, 0); |
| 5652 | nw64_mac(XMAC_ADD_FILT2, 0); |
| 5653 | nw64_mac(XMAC_ADD_FILT12_MASK, 0); |
| 5654 | nw64_mac(XMAC_ADD_FILT00_MASK, 0); |
| 5655 | for (i = 0; i < MAC_NUM_HASH; i++) |
| 5656 | nw64_mac(XMAC_HASH_TBL(i), 0); |
| 5657 | nw64_mac(XRXMAC_STAT_MSK, ~(u64)0); |
| 5658 | niu_set_primary_mac_rdc_table(np, first_rdc_table, 1); |
| 5659 | niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1); |
| 5660 | |
| 5661 | val = nr64_mac(XMAC_CONFIG); |
| 5662 | val &= ~(XMAC_CONFIG_RX_MAC_ENABLE | |
| 5663 | XMAC_CONFIG_PROMISCUOUS | |
| 5664 | XMAC_CONFIG_PROMISC_GROUP | |
| 5665 | XMAC_CONFIG_ERR_CHK_DIS | |
| 5666 | XMAC_CONFIG_RX_CRC_CHK_DIS | |
| 5667 | XMAC_CONFIG_RESERVED_MULTICAST | |
| 5668 | XMAC_CONFIG_RX_CODEV_CHK_DIS | |
| 5669 | XMAC_CONFIG_ADDR_FILTER_EN | |
| 5670 | XMAC_CONFIG_RCV_PAUSE_ENABLE | |
| 5671 | XMAC_CONFIG_STRIP_CRC | |
| 5672 | XMAC_CONFIG_PASS_FLOW_CTRL | |
| 5673 | XMAC_CONFIG_MAC2IPP_PKT_CNT_EN); |
| 5674 | val |= (XMAC_CONFIG_HASH_FILTER_EN); |
| 5675 | nw64_mac(XMAC_CONFIG, val); |
| 5676 | |
| 5677 | nw64_mac(RXMAC_BT_CNT, 0); |
| 5678 | nw64_mac(RXMAC_BC_FRM_CNT, 0); |
| 5679 | nw64_mac(RXMAC_MC_FRM_CNT, 0); |
| 5680 | nw64_mac(RXMAC_FRAG_CNT, 0); |
| 5681 | nw64_mac(RXMAC_HIST_CNT1, 0); |
| 5682 | nw64_mac(RXMAC_HIST_CNT2, 0); |
| 5683 | nw64_mac(RXMAC_HIST_CNT3, 0); |
| 5684 | nw64_mac(RXMAC_HIST_CNT4, 0); |
| 5685 | nw64_mac(RXMAC_HIST_CNT5, 0); |
| 5686 | nw64_mac(RXMAC_HIST_CNT6, 0); |
| 5687 | nw64_mac(RXMAC_HIST_CNT7, 0); |
| 5688 | nw64_mac(RXMAC_MPSZER_CNT, 0); |
| 5689 | nw64_mac(RXMAC_CRC_ER_CNT, 0); |
| 5690 | nw64_mac(RXMAC_CD_VIO_CNT, 0); |
| 5691 | nw64_mac(LINK_FAULT_CNT, 0); |
| 5692 | } |
| 5693 | |
| 5694 | static void niu_init_rx_bmac(struct niu *np) |
| 5695 | { |
| 5696 | struct niu_parent *parent = np->parent; |
| 5697 | struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port]; |
| 5698 | int first_rdc_table = tp->first_table_num; |
| 5699 | unsigned long i; |
| 5700 | u64 val; |
| 5701 | |
| 5702 | nw64_mac(BMAC_ADD_FILT0, 0); |
| 5703 | nw64_mac(BMAC_ADD_FILT1, 0); |
| 5704 | nw64_mac(BMAC_ADD_FILT2, 0); |
| 5705 | nw64_mac(BMAC_ADD_FILT12_MASK, 0); |
| 5706 | nw64_mac(BMAC_ADD_FILT00_MASK, 0); |
| 5707 | for (i = 0; i < MAC_NUM_HASH; i++) |
| 5708 | nw64_mac(BMAC_HASH_TBL(i), 0); |
| 5709 | niu_set_primary_mac_rdc_table(np, first_rdc_table, 1); |
| 5710 | niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1); |
| 5711 | nw64_mac(BRXMAC_STATUS_MASK, ~(u64)0); |
| 5712 | |
| 5713 | val = nr64_mac(BRXMAC_CONFIG); |
| 5714 | val &= ~(BRXMAC_CONFIG_ENABLE | |
| 5715 | BRXMAC_CONFIG_STRIP_PAD | |
| 5716 | BRXMAC_CONFIG_STRIP_FCS | |
| 5717 | BRXMAC_CONFIG_PROMISC | |
| 5718 | BRXMAC_CONFIG_PROMISC_GRP | |
| 5719 | BRXMAC_CONFIG_ADDR_FILT_EN | |
| 5720 | BRXMAC_CONFIG_DISCARD_DIS); |
| 5721 | val |= (BRXMAC_CONFIG_HASH_FILT_EN); |
| 5722 | nw64_mac(BRXMAC_CONFIG, val); |
| 5723 | |
| 5724 | val = nr64_mac(BMAC_ADDR_CMPEN); |
| 5725 | val |= BMAC_ADDR_CMPEN_EN0; |
| 5726 | nw64_mac(BMAC_ADDR_CMPEN, val); |
| 5727 | } |
| 5728 | |
| 5729 | static void niu_init_rx_mac(struct niu *np) |
| 5730 | { |
| 5731 | niu_set_primary_mac(np, np->dev->dev_addr); |
| 5732 | |
| 5733 | if (np->flags & NIU_FLAGS_XMAC) |
| 5734 | niu_init_rx_xmac(np); |
| 5735 | else |
| 5736 | niu_init_rx_bmac(np); |
| 5737 | } |
| 5738 | |
| 5739 | static void niu_enable_tx_xmac(struct niu *np, int on) |
| 5740 | { |
| 5741 | u64 val = nr64_mac(XMAC_CONFIG); |
| 5742 | |
| 5743 | if (on) |
| 5744 | val |= XMAC_CONFIG_TX_ENABLE; |
| 5745 | else |
| 5746 | val &= ~XMAC_CONFIG_TX_ENABLE; |
| 5747 | nw64_mac(XMAC_CONFIG, val); |
| 5748 | } |
| 5749 | |
| 5750 | static void niu_enable_tx_bmac(struct niu *np, int on) |
| 5751 | { |
| 5752 | u64 val = nr64_mac(BTXMAC_CONFIG); |
| 5753 | |
| 5754 | if (on) |
| 5755 | val |= BTXMAC_CONFIG_ENABLE; |
| 5756 | else |
| 5757 | val &= ~BTXMAC_CONFIG_ENABLE; |
| 5758 | nw64_mac(BTXMAC_CONFIG, val); |
| 5759 | } |
| 5760 | |
| 5761 | static void niu_enable_tx_mac(struct niu *np, int on) |
| 5762 | { |
| 5763 | if (np->flags & NIU_FLAGS_XMAC) |
| 5764 | niu_enable_tx_xmac(np, on); |
| 5765 | else |
| 5766 | niu_enable_tx_bmac(np, on); |
| 5767 | } |
| 5768 | |
| 5769 | static void niu_enable_rx_xmac(struct niu *np, int on) |
| 5770 | { |
| 5771 | u64 val = nr64_mac(XMAC_CONFIG); |
| 5772 | |
| 5773 | val &= ~(XMAC_CONFIG_HASH_FILTER_EN | |
| 5774 | XMAC_CONFIG_PROMISCUOUS); |
| 5775 | |
| 5776 | if (np->flags & NIU_FLAGS_MCAST) |
| 5777 | val |= XMAC_CONFIG_HASH_FILTER_EN; |
| 5778 | if (np->flags & NIU_FLAGS_PROMISC) |
| 5779 | val |= XMAC_CONFIG_PROMISCUOUS; |
| 5780 | |
| 5781 | if (on) |
| 5782 | val |= XMAC_CONFIG_RX_MAC_ENABLE; |
| 5783 | else |
| 5784 | val &= ~XMAC_CONFIG_RX_MAC_ENABLE; |
| 5785 | nw64_mac(XMAC_CONFIG, val); |
| 5786 | } |
| 5787 | |
| 5788 | static void niu_enable_rx_bmac(struct niu *np, int on) |
| 5789 | { |
| 5790 | u64 val = nr64_mac(BRXMAC_CONFIG); |
| 5791 | |
| 5792 | val &= ~(BRXMAC_CONFIG_HASH_FILT_EN | |
| 5793 | BRXMAC_CONFIG_PROMISC); |
| 5794 | |
| 5795 | if (np->flags & NIU_FLAGS_MCAST) |
| 5796 | val |= BRXMAC_CONFIG_HASH_FILT_EN; |
| 5797 | if (np->flags & NIU_FLAGS_PROMISC) |
| 5798 | val |= BRXMAC_CONFIG_PROMISC; |
| 5799 | |
| 5800 | if (on) |
| 5801 | val |= BRXMAC_CONFIG_ENABLE; |
| 5802 | else |
| 5803 | val &= ~BRXMAC_CONFIG_ENABLE; |
| 5804 | nw64_mac(BRXMAC_CONFIG, val); |
| 5805 | } |
| 5806 | |
| 5807 | static void niu_enable_rx_mac(struct niu *np, int on) |
| 5808 | { |
| 5809 | if (np->flags & NIU_FLAGS_XMAC) |
| 5810 | niu_enable_rx_xmac(np, on); |
| 5811 | else |
| 5812 | niu_enable_rx_bmac(np, on); |
| 5813 | } |
| 5814 | |
| 5815 | static int niu_init_mac(struct niu *np) |
| 5816 | { |
| 5817 | int err; |
| 5818 | |
| 5819 | niu_init_xif(np); |
| 5820 | err = niu_init_pcs(np); |
| 5821 | if (err) |
| 5822 | return err; |
| 5823 | |
| 5824 | err = niu_reset_tx_mac(np); |
| 5825 | if (err) |
| 5826 | return err; |
| 5827 | niu_init_tx_mac(np); |
| 5828 | err = niu_reset_rx_mac(np); |
| 5829 | if (err) |
| 5830 | return err; |
| 5831 | niu_init_rx_mac(np); |
| 5832 | |
| 5833 | /* This looks hookey but the RX MAC reset we just did will |
| 5834 | * undo some of the state we setup in niu_init_tx_mac() so we |
| 5835 | * have to call it again. In particular, the RX MAC reset will |
| 5836 | * set the XMAC_MAX register back to it's default value. |
| 5837 | */ |
| 5838 | niu_init_tx_mac(np); |
| 5839 | niu_enable_tx_mac(np, 1); |
| 5840 | |
| 5841 | niu_enable_rx_mac(np, 1); |
| 5842 | |
| 5843 | return 0; |
| 5844 | } |
| 5845 | |
| 5846 | static void niu_stop_one_tx_channel(struct niu *np, struct tx_ring_info *rp) |
| 5847 | { |
| 5848 | (void) niu_tx_channel_stop(np, rp->tx_channel); |
| 5849 | } |
| 5850 | |
| 5851 | static void niu_stop_tx_channels(struct niu *np) |
| 5852 | { |
| 5853 | int i; |
| 5854 | |
| 5855 | for (i = 0; i < np->num_tx_rings; i++) { |
| 5856 | struct tx_ring_info *rp = &np->tx_rings[i]; |
| 5857 | |
| 5858 | niu_stop_one_tx_channel(np, rp); |
| 5859 | } |
| 5860 | } |
| 5861 | |
| 5862 | static void niu_reset_one_tx_channel(struct niu *np, struct tx_ring_info *rp) |
| 5863 | { |
| 5864 | (void) niu_tx_channel_reset(np, rp->tx_channel); |
| 5865 | } |
| 5866 | |
| 5867 | static void niu_reset_tx_channels(struct niu *np) |
| 5868 | { |
| 5869 | int i; |
| 5870 | |
| 5871 | for (i = 0; i < np->num_tx_rings; i++) { |
| 5872 | struct tx_ring_info *rp = &np->tx_rings[i]; |
| 5873 | |
| 5874 | niu_reset_one_tx_channel(np, rp); |
| 5875 | } |
| 5876 | } |
| 5877 | |
| 5878 | static void niu_stop_one_rx_channel(struct niu *np, struct rx_ring_info *rp) |
| 5879 | { |
| 5880 | (void) niu_enable_rx_channel(np, rp->rx_channel, 0); |
| 5881 | } |
| 5882 | |
| 5883 | static void niu_stop_rx_channels(struct niu *np) |
| 5884 | { |
| 5885 | int i; |
| 5886 | |
| 5887 | for (i = 0; i < np->num_rx_rings; i++) { |
| 5888 | struct rx_ring_info *rp = &np->rx_rings[i]; |
| 5889 | |
| 5890 | niu_stop_one_rx_channel(np, rp); |
| 5891 | } |
| 5892 | } |
| 5893 | |
| 5894 | static void niu_reset_one_rx_channel(struct niu *np, struct rx_ring_info *rp) |
| 5895 | { |
| 5896 | int channel = rp->rx_channel; |
| 5897 | |
| 5898 | (void) niu_rx_channel_reset(np, channel); |
| 5899 | nw64(RX_DMA_ENT_MSK(channel), RX_DMA_ENT_MSK_ALL); |
| 5900 | nw64(RX_DMA_CTL_STAT(channel), 0); |
| 5901 | (void) niu_enable_rx_channel(np, channel, 0); |
| 5902 | } |
| 5903 | |
| 5904 | static void niu_reset_rx_channels(struct niu *np) |
| 5905 | { |
| 5906 | int i; |
| 5907 | |
| 5908 | for (i = 0; i < np->num_rx_rings; i++) { |
| 5909 | struct rx_ring_info *rp = &np->rx_rings[i]; |
| 5910 | |
| 5911 | niu_reset_one_rx_channel(np, rp); |
| 5912 | } |
| 5913 | } |
| 5914 | |
| 5915 | static void niu_disable_ipp(struct niu *np) |
| 5916 | { |
| 5917 | u64 rd, wr, val; |
| 5918 | int limit; |
| 5919 | |
| 5920 | rd = nr64_ipp(IPP_DFIFO_RD_PTR); |
| 5921 | wr = nr64_ipp(IPP_DFIFO_WR_PTR); |
| 5922 | limit = 100; |
| 5923 | while (--limit >= 0 && (rd != wr)) { |
| 5924 | rd = nr64_ipp(IPP_DFIFO_RD_PTR); |
| 5925 | wr = nr64_ipp(IPP_DFIFO_WR_PTR); |
| 5926 | } |
| 5927 | if (limit < 0 && |
| 5928 | (rd != 0 && wr != 1)) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 5929 | netdev_err(np->dev, "IPP would not quiesce, rd_ptr[%llx] wr_ptr[%llx]\n", |
| 5930 | (unsigned long long)nr64_ipp(IPP_DFIFO_RD_PTR), |
| 5931 | (unsigned long long)nr64_ipp(IPP_DFIFO_WR_PTR)); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5932 | } |
| 5933 | |
| 5934 | val = nr64_ipp(IPP_CFIG); |
| 5935 | val &= ~(IPP_CFIG_IPP_ENABLE | |
| 5936 | IPP_CFIG_DFIFO_ECC_EN | |
| 5937 | IPP_CFIG_DROP_BAD_CRC | |
| 5938 | IPP_CFIG_CKSUM_EN); |
| 5939 | nw64_ipp(IPP_CFIG, val); |
| 5940 | |
| 5941 | (void) niu_ipp_reset(np); |
| 5942 | } |
| 5943 | |
| 5944 | static int niu_init_hw(struct niu *np) |
| 5945 | { |
| 5946 | int i, err; |
| 5947 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 5948 | netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize TXC\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5949 | niu_txc_enable_port(np, 1); |
| 5950 | niu_txc_port_dma_enable(np, 1); |
| 5951 | niu_txc_set_imask(np, 0); |
| 5952 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 5953 | netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize TX channels\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5954 | for (i = 0; i < np->num_tx_rings; i++) { |
| 5955 | struct tx_ring_info *rp = &np->tx_rings[i]; |
| 5956 | |
| 5957 | err = niu_init_one_tx_channel(np, rp); |
| 5958 | if (err) |
| 5959 | return err; |
| 5960 | } |
| 5961 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 5962 | netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize RX channels\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5963 | err = niu_init_rx_channels(np); |
| 5964 | if (err) |
| 5965 | goto out_uninit_tx_channels; |
| 5966 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 5967 | netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize classifier\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5968 | err = niu_init_classifier_hw(np); |
| 5969 | if (err) |
| 5970 | goto out_uninit_rx_channels; |
| 5971 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 5972 | netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize ZCP\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5973 | err = niu_init_zcp(np); |
| 5974 | if (err) |
| 5975 | goto out_uninit_rx_channels; |
| 5976 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 5977 | netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize IPP\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5978 | err = niu_init_ipp(np); |
| 5979 | if (err) |
| 5980 | goto out_uninit_rx_channels; |
| 5981 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 5982 | netif_printk(np, ifup, KERN_DEBUG, np->dev, "Initialize MAC\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5983 | err = niu_init_mac(np); |
| 5984 | if (err) |
| 5985 | goto out_uninit_ipp; |
| 5986 | |
| 5987 | return 0; |
| 5988 | |
| 5989 | out_uninit_ipp: |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 5990 | netif_printk(np, ifup, KERN_DEBUG, np->dev, "Uninit IPP\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5991 | niu_disable_ipp(np); |
| 5992 | |
| 5993 | out_uninit_rx_channels: |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 5994 | netif_printk(np, ifup, KERN_DEBUG, np->dev, "Uninit RX channels\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 5995 | niu_stop_rx_channels(np); |
| 5996 | niu_reset_rx_channels(np); |
| 5997 | |
| 5998 | out_uninit_tx_channels: |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 5999 | netif_printk(np, ifup, KERN_DEBUG, np->dev, "Uninit TX channels\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6000 | niu_stop_tx_channels(np); |
| 6001 | niu_reset_tx_channels(np); |
| 6002 | |
| 6003 | return err; |
| 6004 | } |
| 6005 | |
| 6006 | static void niu_stop_hw(struct niu *np) |
| 6007 | { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 6008 | netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Disable interrupts\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6009 | niu_enable_interrupts(np, 0); |
| 6010 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 6011 | netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Disable RX MAC\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6012 | niu_enable_rx_mac(np, 0); |
| 6013 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 6014 | netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Disable IPP\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6015 | niu_disable_ipp(np); |
| 6016 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 6017 | netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Stop TX channels\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6018 | niu_stop_tx_channels(np); |
| 6019 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 6020 | netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Stop RX channels\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6021 | niu_stop_rx_channels(np); |
| 6022 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 6023 | netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Reset TX channels\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6024 | niu_reset_tx_channels(np); |
| 6025 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 6026 | netif_printk(np, ifdown, KERN_DEBUG, np->dev, "Reset RX channels\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6027 | niu_reset_rx_channels(np); |
| 6028 | } |
| 6029 | |
Robert Olsson | 70340d7 | 2008-11-25 16:41:57 -0800 | [diff] [blame] | 6030 | static void niu_set_irq_name(struct niu *np) |
| 6031 | { |
| 6032 | int port = np->port; |
| 6033 | int i, j = 1; |
| 6034 | |
| 6035 | sprintf(np->irq_name[0], "%s:MAC", np->dev->name); |
| 6036 | |
| 6037 | if (port == 0) { |
| 6038 | sprintf(np->irq_name[1], "%s:MIF", np->dev->name); |
| 6039 | sprintf(np->irq_name[2], "%s:SYSERR", np->dev->name); |
| 6040 | j = 3; |
| 6041 | } |
| 6042 | |
| 6043 | for (i = 0; i < np->num_ldg - j; i++) { |
| 6044 | if (i < np->num_rx_rings) |
| 6045 | sprintf(np->irq_name[i+j], "%s-rx-%d", |
| 6046 | np->dev->name, i); |
| 6047 | else if (i < np->num_tx_rings + np->num_rx_rings) |
| 6048 | sprintf(np->irq_name[i+j], "%s-tx-%d", np->dev->name, |
| 6049 | i - np->num_rx_rings); |
| 6050 | } |
| 6051 | } |
| 6052 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6053 | static int niu_request_irq(struct niu *np) |
| 6054 | { |
| 6055 | int i, j, err; |
| 6056 | |
Robert Olsson | 70340d7 | 2008-11-25 16:41:57 -0800 | [diff] [blame] | 6057 | niu_set_irq_name(np); |
| 6058 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6059 | err = 0; |
| 6060 | for (i = 0; i < np->num_ldg; i++) { |
| 6061 | struct niu_ldg *lp = &np->ldg[i]; |
| 6062 | |
| 6063 | err = request_irq(lp->irq, niu_interrupt, |
| 6064 | IRQF_SHARED | IRQF_SAMPLE_RANDOM, |
Robert Olsson | 70340d7 | 2008-11-25 16:41:57 -0800 | [diff] [blame] | 6065 | np->irq_name[i], lp); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6066 | if (err) |
| 6067 | goto out_free_irqs; |
| 6068 | |
| 6069 | } |
| 6070 | |
| 6071 | return 0; |
| 6072 | |
| 6073 | out_free_irqs: |
| 6074 | for (j = 0; j < i; j++) { |
| 6075 | struct niu_ldg *lp = &np->ldg[j]; |
| 6076 | |
| 6077 | free_irq(lp->irq, lp); |
| 6078 | } |
| 6079 | return err; |
| 6080 | } |
| 6081 | |
| 6082 | static void niu_free_irq(struct niu *np) |
| 6083 | { |
| 6084 | int i; |
| 6085 | |
| 6086 | for (i = 0; i < np->num_ldg; i++) { |
| 6087 | struct niu_ldg *lp = &np->ldg[i]; |
| 6088 | |
| 6089 | free_irq(lp->irq, lp); |
| 6090 | } |
| 6091 | } |
| 6092 | |
| 6093 | static void niu_enable_napi(struct niu *np) |
| 6094 | { |
| 6095 | int i; |
| 6096 | |
| 6097 | for (i = 0; i < np->num_ldg; i++) |
| 6098 | napi_enable(&np->ldg[i].napi); |
| 6099 | } |
| 6100 | |
| 6101 | static void niu_disable_napi(struct niu *np) |
| 6102 | { |
| 6103 | int i; |
| 6104 | |
| 6105 | for (i = 0; i < np->num_ldg; i++) |
| 6106 | napi_disable(&np->ldg[i].napi); |
| 6107 | } |
| 6108 | |
| 6109 | static int niu_open(struct net_device *dev) |
| 6110 | { |
| 6111 | struct niu *np = netdev_priv(dev); |
| 6112 | int err; |
| 6113 | |
| 6114 | netif_carrier_off(dev); |
| 6115 | |
| 6116 | err = niu_alloc_channels(np); |
| 6117 | if (err) |
| 6118 | goto out_err; |
| 6119 | |
| 6120 | err = niu_enable_interrupts(np, 0); |
| 6121 | if (err) |
| 6122 | goto out_free_channels; |
| 6123 | |
| 6124 | err = niu_request_irq(np); |
| 6125 | if (err) |
| 6126 | goto out_free_channels; |
| 6127 | |
| 6128 | niu_enable_napi(np); |
| 6129 | |
| 6130 | spin_lock_irq(&np->lock); |
| 6131 | |
| 6132 | err = niu_init_hw(np); |
| 6133 | if (!err) { |
| 6134 | init_timer(&np->timer); |
| 6135 | np->timer.expires = jiffies + HZ; |
| 6136 | np->timer.data = (unsigned long) np; |
| 6137 | np->timer.function = niu_timer; |
| 6138 | |
| 6139 | err = niu_enable_interrupts(np, 1); |
| 6140 | if (err) |
| 6141 | niu_stop_hw(np); |
| 6142 | } |
| 6143 | |
| 6144 | spin_unlock_irq(&np->lock); |
| 6145 | |
| 6146 | if (err) { |
| 6147 | niu_disable_napi(np); |
| 6148 | goto out_free_irq; |
| 6149 | } |
| 6150 | |
David S. Miller | b4c2163 | 2008-07-15 03:48:19 -0700 | [diff] [blame] | 6151 | netif_tx_start_all_queues(dev); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6152 | |
| 6153 | if (np->link_config.loopback_mode != LOOPBACK_DISABLED) |
| 6154 | netif_carrier_on(dev); |
| 6155 | |
| 6156 | add_timer(&np->timer); |
| 6157 | |
| 6158 | return 0; |
| 6159 | |
| 6160 | out_free_irq: |
| 6161 | niu_free_irq(np); |
| 6162 | |
| 6163 | out_free_channels: |
| 6164 | niu_free_channels(np); |
| 6165 | |
| 6166 | out_err: |
| 6167 | return err; |
| 6168 | } |
| 6169 | |
| 6170 | static void niu_full_shutdown(struct niu *np, struct net_device *dev) |
| 6171 | { |
| 6172 | cancel_work_sync(&np->reset_task); |
| 6173 | |
| 6174 | niu_disable_napi(np); |
David S. Miller | b4c2163 | 2008-07-15 03:48:19 -0700 | [diff] [blame] | 6175 | netif_tx_stop_all_queues(dev); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6176 | |
| 6177 | del_timer_sync(&np->timer); |
| 6178 | |
| 6179 | spin_lock_irq(&np->lock); |
| 6180 | |
| 6181 | niu_stop_hw(np); |
| 6182 | |
| 6183 | spin_unlock_irq(&np->lock); |
| 6184 | } |
| 6185 | |
| 6186 | static int niu_close(struct net_device *dev) |
| 6187 | { |
| 6188 | struct niu *np = netdev_priv(dev); |
| 6189 | |
| 6190 | niu_full_shutdown(np, dev); |
| 6191 | |
| 6192 | niu_free_irq(np); |
| 6193 | |
| 6194 | niu_free_channels(np); |
| 6195 | |
Mirko Lindner | 0c3b091 | 2007-12-05 21:10:02 -0800 | [diff] [blame] | 6196 | niu_handle_led(np, 0); |
| 6197 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6198 | return 0; |
| 6199 | } |
| 6200 | |
| 6201 | static void niu_sync_xmac_stats(struct niu *np) |
| 6202 | { |
| 6203 | struct niu_xmac_stats *mp = &np->mac_stats.xmac; |
| 6204 | |
| 6205 | mp->tx_frames += nr64_mac(TXMAC_FRM_CNT); |
| 6206 | mp->tx_bytes += nr64_mac(TXMAC_BYTE_CNT); |
| 6207 | |
| 6208 | mp->rx_link_faults += nr64_mac(LINK_FAULT_CNT); |
| 6209 | mp->rx_align_errors += nr64_mac(RXMAC_ALIGN_ERR_CNT); |
| 6210 | mp->rx_frags += nr64_mac(RXMAC_FRAG_CNT); |
| 6211 | mp->rx_mcasts += nr64_mac(RXMAC_MC_FRM_CNT); |
| 6212 | mp->rx_bcasts += nr64_mac(RXMAC_BC_FRM_CNT); |
| 6213 | mp->rx_hist_cnt1 += nr64_mac(RXMAC_HIST_CNT1); |
| 6214 | mp->rx_hist_cnt2 += nr64_mac(RXMAC_HIST_CNT2); |
| 6215 | mp->rx_hist_cnt3 += nr64_mac(RXMAC_HIST_CNT3); |
| 6216 | mp->rx_hist_cnt4 += nr64_mac(RXMAC_HIST_CNT4); |
| 6217 | mp->rx_hist_cnt5 += nr64_mac(RXMAC_HIST_CNT5); |
| 6218 | mp->rx_hist_cnt6 += nr64_mac(RXMAC_HIST_CNT6); |
| 6219 | mp->rx_hist_cnt7 += nr64_mac(RXMAC_HIST_CNT7); |
| 6220 | mp->rx_octets += nr64_mac(RXMAC_BT_CNT); |
| 6221 | mp->rx_code_violations += nr64_mac(RXMAC_CD_VIO_CNT); |
| 6222 | mp->rx_len_errors += nr64_mac(RXMAC_MPSZER_CNT); |
| 6223 | mp->rx_crc_errors += nr64_mac(RXMAC_CRC_ER_CNT); |
| 6224 | } |
| 6225 | |
| 6226 | static void niu_sync_bmac_stats(struct niu *np) |
| 6227 | { |
| 6228 | struct niu_bmac_stats *mp = &np->mac_stats.bmac; |
| 6229 | |
| 6230 | mp->tx_bytes += nr64_mac(BTXMAC_BYTE_CNT); |
| 6231 | mp->tx_frames += nr64_mac(BTXMAC_FRM_CNT); |
| 6232 | |
| 6233 | mp->rx_frames += nr64_mac(BRXMAC_FRAME_CNT); |
| 6234 | mp->rx_align_errors += nr64_mac(BRXMAC_ALIGN_ERR_CNT); |
| 6235 | mp->rx_crc_errors += nr64_mac(BRXMAC_ALIGN_ERR_CNT); |
| 6236 | mp->rx_len_errors += nr64_mac(BRXMAC_CODE_VIOL_ERR_CNT); |
| 6237 | } |
| 6238 | |
| 6239 | static void niu_sync_mac_stats(struct niu *np) |
| 6240 | { |
| 6241 | if (np->flags & NIU_FLAGS_XMAC) |
| 6242 | niu_sync_xmac_stats(np); |
| 6243 | else |
| 6244 | niu_sync_bmac_stats(np); |
| 6245 | } |
| 6246 | |
| 6247 | static void niu_get_rx_stats(struct niu *np) |
| 6248 | { |
| 6249 | unsigned long pkts, dropped, errors, bytes; |
| 6250 | int i; |
| 6251 | |
| 6252 | pkts = dropped = errors = bytes = 0; |
| 6253 | for (i = 0; i < np->num_rx_rings; i++) { |
| 6254 | struct rx_ring_info *rp = &np->rx_rings[i]; |
| 6255 | |
Jesper Dangaard Brouer | b8a606b | 2008-12-18 19:50:49 -0800 | [diff] [blame] | 6256 | niu_sync_rx_discard_stats(np, rp, 0); |
| 6257 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6258 | pkts += rp->rx_packets; |
| 6259 | bytes += rp->rx_bytes; |
| 6260 | dropped += rp->rx_dropped; |
| 6261 | errors += rp->rx_errors; |
| 6262 | } |
Ilpo Järvinen | 9fd4287 | 2008-11-28 15:52:00 -0800 | [diff] [blame] | 6263 | np->dev->stats.rx_packets = pkts; |
| 6264 | np->dev->stats.rx_bytes = bytes; |
| 6265 | np->dev->stats.rx_dropped = dropped; |
| 6266 | np->dev->stats.rx_errors = errors; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6267 | } |
| 6268 | |
| 6269 | static void niu_get_tx_stats(struct niu *np) |
| 6270 | { |
| 6271 | unsigned long pkts, errors, bytes; |
| 6272 | int i; |
| 6273 | |
| 6274 | pkts = errors = bytes = 0; |
| 6275 | for (i = 0; i < np->num_tx_rings; i++) { |
| 6276 | struct tx_ring_info *rp = &np->tx_rings[i]; |
| 6277 | |
| 6278 | pkts += rp->tx_packets; |
| 6279 | bytes += rp->tx_bytes; |
| 6280 | errors += rp->tx_errors; |
| 6281 | } |
Ilpo Järvinen | 9fd4287 | 2008-11-28 15:52:00 -0800 | [diff] [blame] | 6282 | np->dev->stats.tx_packets = pkts; |
| 6283 | np->dev->stats.tx_bytes = bytes; |
| 6284 | np->dev->stats.tx_errors = errors; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6285 | } |
| 6286 | |
| 6287 | static struct net_device_stats *niu_get_stats(struct net_device *dev) |
| 6288 | { |
| 6289 | struct niu *np = netdev_priv(dev); |
| 6290 | |
| 6291 | niu_get_rx_stats(np); |
| 6292 | niu_get_tx_stats(np); |
| 6293 | |
Ilpo Järvinen | 9fd4287 | 2008-11-28 15:52:00 -0800 | [diff] [blame] | 6294 | return &dev->stats; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6295 | } |
| 6296 | |
| 6297 | static void niu_load_hash_xmac(struct niu *np, u16 *hash) |
| 6298 | { |
| 6299 | int i; |
| 6300 | |
| 6301 | for (i = 0; i < 16; i++) |
| 6302 | nw64_mac(XMAC_HASH_TBL(i), hash[i]); |
| 6303 | } |
| 6304 | |
| 6305 | static void niu_load_hash_bmac(struct niu *np, u16 *hash) |
| 6306 | { |
| 6307 | int i; |
| 6308 | |
| 6309 | for (i = 0; i < 16; i++) |
| 6310 | nw64_mac(BMAC_HASH_TBL(i), hash[i]); |
| 6311 | } |
| 6312 | |
| 6313 | static void niu_load_hash(struct niu *np, u16 *hash) |
| 6314 | { |
| 6315 | if (np->flags & NIU_FLAGS_XMAC) |
| 6316 | niu_load_hash_xmac(np, hash); |
| 6317 | else |
| 6318 | niu_load_hash_bmac(np, hash); |
| 6319 | } |
| 6320 | |
| 6321 | static void niu_set_rx_mode(struct net_device *dev) |
| 6322 | { |
| 6323 | struct niu *np = netdev_priv(dev); |
| 6324 | int i, alt_cnt, err; |
Jiri Pirko | ccffad25 | 2009-05-22 23:22:17 +0000 | [diff] [blame] | 6325 | struct netdev_hw_addr *ha; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6326 | unsigned long flags; |
| 6327 | u16 hash[16] = { 0, }; |
| 6328 | |
| 6329 | spin_lock_irqsave(&np->lock, flags); |
| 6330 | niu_enable_rx_mac(np, 0); |
| 6331 | |
| 6332 | np->flags &= ~(NIU_FLAGS_MCAST | NIU_FLAGS_PROMISC); |
| 6333 | if (dev->flags & IFF_PROMISC) |
| 6334 | np->flags |= NIU_FLAGS_PROMISC; |
Jiri Pirko | 4cd24ea | 2010-02-08 04:30:35 +0000 | [diff] [blame] | 6335 | if ((dev->flags & IFF_ALLMULTI) || (!netdev_mc_empty(dev))) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6336 | np->flags |= NIU_FLAGS_MCAST; |
| 6337 | |
Jiri Pirko | 32e7bfc | 2010-01-25 13:36:10 -0800 | [diff] [blame] | 6338 | alt_cnt = netdev_uc_count(dev); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6339 | if (alt_cnt > niu_num_alt_addr(np)) { |
| 6340 | alt_cnt = 0; |
| 6341 | np->flags |= NIU_FLAGS_PROMISC; |
| 6342 | } |
| 6343 | |
| 6344 | if (alt_cnt) { |
| 6345 | int index = 0; |
| 6346 | |
Jiri Pirko | 32e7bfc | 2010-01-25 13:36:10 -0800 | [diff] [blame] | 6347 | netdev_for_each_uc_addr(ha, dev) { |
Jiri Pirko | ccffad25 | 2009-05-22 23:22:17 +0000 | [diff] [blame] | 6348 | err = niu_set_alt_mac(np, index, ha->addr); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6349 | if (err) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 6350 | netdev_warn(dev, "Error %d adding alt mac %d\n", |
| 6351 | err, index); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6352 | err = niu_enable_alt_mac(np, index, 1); |
| 6353 | if (err) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 6354 | netdev_warn(dev, "Error %d enabling alt mac %d\n", |
| 6355 | err, index); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6356 | |
| 6357 | index++; |
| 6358 | } |
| 6359 | } else { |
Matheos Worku | 3b5bced | 2008-02-18 21:30:03 -0800 | [diff] [blame] | 6360 | int alt_start; |
| 6361 | if (np->flags & NIU_FLAGS_XMAC) |
| 6362 | alt_start = 0; |
| 6363 | else |
| 6364 | alt_start = 1; |
| 6365 | for (i = alt_start; i < niu_num_alt_addr(np); i++) { |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6366 | err = niu_enable_alt_mac(np, i, 0); |
| 6367 | if (err) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 6368 | netdev_warn(dev, "Error %d disabling alt mac %d\n", |
| 6369 | err, i); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6370 | } |
| 6371 | } |
| 6372 | if (dev->flags & IFF_ALLMULTI) { |
| 6373 | for (i = 0; i < 16; i++) |
| 6374 | hash[i] = 0xffff; |
Jiri Pirko | 4cd24ea | 2010-02-08 04:30:35 +0000 | [diff] [blame] | 6375 | } else if (!netdev_mc_empty(dev)) { |
Jiri Pirko | 22bedad3 | 2010-04-01 21:22:57 +0000 | [diff] [blame] | 6376 | netdev_for_each_mc_addr(ha, dev) { |
| 6377 | u32 crc = ether_crc_le(ETH_ALEN, ha->addr); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6378 | |
| 6379 | crc >>= 24; |
| 6380 | hash[crc >> 4] |= (1 << (15 - (crc & 0xf))); |
| 6381 | } |
| 6382 | } |
| 6383 | |
| 6384 | if (np->flags & NIU_FLAGS_MCAST) |
| 6385 | niu_load_hash(np, hash); |
| 6386 | |
| 6387 | niu_enable_rx_mac(np, 1); |
| 6388 | spin_unlock_irqrestore(&np->lock, flags); |
| 6389 | } |
| 6390 | |
| 6391 | static int niu_set_mac_addr(struct net_device *dev, void *p) |
| 6392 | { |
| 6393 | struct niu *np = netdev_priv(dev); |
| 6394 | struct sockaddr *addr = p; |
| 6395 | unsigned long flags; |
| 6396 | |
| 6397 | if (!is_valid_ether_addr(addr->sa_data)) |
| 6398 | return -EINVAL; |
| 6399 | |
| 6400 | memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); |
| 6401 | |
| 6402 | if (!netif_running(dev)) |
| 6403 | return 0; |
| 6404 | |
| 6405 | spin_lock_irqsave(&np->lock, flags); |
| 6406 | niu_enable_rx_mac(np, 0); |
| 6407 | niu_set_primary_mac(np, dev->dev_addr); |
| 6408 | niu_enable_rx_mac(np, 1); |
| 6409 | spin_unlock_irqrestore(&np->lock, flags); |
| 6410 | |
| 6411 | return 0; |
| 6412 | } |
| 6413 | |
| 6414 | static int niu_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
| 6415 | { |
| 6416 | return -EOPNOTSUPP; |
| 6417 | } |
| 6418 | |
| 6419 | static void niu_netif_stop(struct niu *np) |
| 6420 | { |
| 6421 | np->dev->trans_start = jiffies; /* prevent tx timeout */ |
| 6422 | |
| 6423 | niu_disable_napi(np); |
| 6424 | |
| 6425 | netif_tx_disable(np->dev); |
| 6426 | } |
| 6427 | |
| 6428 | static void niu_netif_start(struct niu *np) |
| 6429 | { |
| 6430 | /* NOTE: unconditional netif_wake_queue is only appropriate |
| 6431 | * so long as all callers are assured to have free tx slots |
| 6432 | * (such as after niu_init_hw). |
| 6433 | */ |
David S. Miller | b4c2163 | 2008-07-15 03:48:19 -0700 | [diff] [blame] | 6434 | netif_tx_wake_all_queues(np->dev); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6435 | |
| 6436 | niu_enable_napi(np); |
| 6437 | |
| 6438 | niu_enable_interrupts(np, 1); |
| 6439 | } |
| 6440 | |
Santwona Behera | cff502a | 2008-09-12 16:04:26 -0700 | [diff] [blame] | 6441 | static void niu_reset_buffers(struct niu *np) |
| 6442 | { |
| 6443 | int i, j, k, err; |
| 6444 | |
| 6445 | if (np->rx_rings) { |
| 6446 | for (i = 0; i < np->num_rx_rings; i++) { |
| 6447 | struct rx_ring_info *rp = &np->rx_rings[i]; |
| 6448 | |
| 6449 | for (j = 0, k = 0; j < MAX_RBR_RING_SIZE; j++) { |
| 6450 | struct page *page; |
| 6451 | |
| 6452 | page = rp->rxhash[j]; |
| 6453 | while (page) { |
| 6454 | struct page *next = |
| 6455 | (struct page *) page->mapping; |
| 6456 | u64 base = page->index; |
| 6457 | base = base >> RBR_DESCR_ADDR_SHIFT; |
| 6458 | rp->rbr[k++] = cpu_to_le32(base); |
| 6459 | page = next; |
| 6460 | } |
| 6461 | } |
| 6462 | for (; k < MAX_RBR_RING_SIZE; k++) { |
| 6463 | err = niu_rbr_add_page(np, rp, GFP_ATOMIC, k); |
| 6464 | if (unlikely(err)) |
| 6465 | break; |
| 6466 | } |
| 6467 | |
| 6468 | rp->rbr_index = rp->rbr_table_size - 1; |
| 6469 | rp->rcr_index = 0; |
| 6470 | rp->rbr_pending = 0; |
| 6471 | rp->rbr_refill_pending = 0; |
| 6472 | } |
| 6473 | } |
| 6474 | if (np->tx_rings) { |
| 6475 | for (i = 0; i < np->num_tx_rings; i++) { |
| 6476 | struct tx_ring_info *rp = &np->tx_rings[i]; |
| 6477 | |
| 6478 | for (j = 0; j < MAX_TX_RING_SIZE; j++) { |
| 6479 | if (rp->tx_buffs[j].skb) |
| 6480 | (void) release_tx_packet(np, rp, j); |
| 6481 | } |
| 6482 | |
| 6483 | rp->pending = MAX_TX_RING_SIZE; |
| 6484 | rp->prod = 0; |
| 6485 | rp->cons = 0; |
| 6486 | rp->wrap_bit = 0; |
| 6487 | } |
| 6488 | } |
| 6489 | } |
| 6490 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6491 | static void niu_reset_task(struct work_struct *work) |
| 6492 | { |
| 6493 | struct niu *np = container_of(work, struct niu, reset_task); |
| 6494 | unsigned long flags; |
| 6495 | int err; |
| 6496 | |
| 6497 | spin_lock_irqsave(&np->lock, flags); |
| 6498 | if (!netif_running(np->dev)) { |
| 6499 | spin_unlock_irqrestore(&np->lock, flags); |
| 6500 | return; |
| 6501 | } |
| 6502 | |
| 6503 | spin_unlock_irqrestore(&np->lock, flags); |
| 6504 | |
| 6505 | del_timer_sync(&np->timer); |
| 6506 | |
| 6507 | niu_netif_stop(np); |
| 6508 | |
| 6509 | spin_lock_irqsave(&np->lock, flags); |
| 6510 | |
| 6511 | niu_stop_hw(np); |
| 6512 | |
Santwona Behera | cff502a | 2008-09-12 16:04:26 -0700 | [diff] [blame] | 6513 | spin_unlock_irqrestore(&np->lock, flags); |
| 6514 | |
| 6515 | niu_reset_buffers(np); |
| 6516 | |
| 6517 | spin_lock_irqsave(&np->lock, flags); |
| 6518 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6519 | err = niu_init_hw(np); |
| 6520 | if (!err) { |
| 6521 | np->timer.expires = jiffies + HZ; |
| 6522 | add_timer(&np->timer); |
| 6523 | niu_netif_start(np); |
| 6524 | } |
| 6525 | |
| 6526 | spin_unlock_irqrestore(&np->lock, flags); |
| 6527 | } |
| 6528 | |
| 6529 | static void niu_tx_timeout(struct net_device *dev) |
| 6530 | { |
| 6531 | struct niu *np = netdev_priv(dev); |
| 6532 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 6533 | dev_err(np->device, "%s: Transmit timed out, resetting\n", |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6534 | dev->name); |
| 6535 | |
| 6536 | schedule_work(&np->reset_task); |
| 6537 | } |
| 6538 | |
| 6539 | static void niu_set_txd(struct tx_ring_info *rp, int index, |
| 6540 | u64 mapping, u64 len, u64 mark, |
| 6541 | u64 n_frags) |
| 6542 | { |
| 6543 | __le64 *desc = &rp->descr[index]; |
| 6544 | |
| 6545 | *desc = cpu_to_le64(mark | |
| 6546 | (n_frags << TX_DESC_NUM_PTR_SHIFT) | |
| 6547 | (len << TX_DESC_TR_LEN_SHIFT) | |
| 6548 | (mapping & TX_DESC_SAD)); |
| 6549 | } |
| 6550 | |
| 6551 | static u64 niu_compute_tx_flags(struct sk_buff *skb, struct ethhdr *ehdr, |
| 6552 | u64 pad_bytes, u64 len) |
| 6553 | { |
| 6554 | u16 eth_proto, eth_proto_inner; |
| 6555 | u64 csum_bits, l3off, ihl, ret; |
| 6556 | u8 ip_proto; |
| 6557 | int ipv6; |
| 6558 | |
| 6559 | eth_proto = be16_to_cpu(ehdr->h_proto); |
| 6560 | eth_proto_inner = eth_proto; |
| 6561 | if (eth_proto == ETH_P_8021Q) { |
| 6562 | struct vlan_ethhdr *vp = (struct vlan_ethhdr *) ehdr; |
| 6563 | __be16 val = vp->h_vlan_encapsulated_proto; |
| 6564 | |
| 6565 | eth_proto_inner = be16_to_cpu(val); |
| 6566 | } |
| 6567 | |
| 6568 | ipv6 = ihl = 0; |
| 6569 | switch (skb->protocol) { |
Harvey Harrison | 09640e6 | 2009-02-01 00:45:17 -0800 | [diff] [blame] | 6570 | case cpu_to_be16(ETH_P_IP): |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6571 | ip_proto = ip_hdr(skb)->protocol; |
| 6572 | ihl = ip_hdr(skb)->ihl; |
| 6573 | break; |
Harvey Harrison | 09640e6 | 2009-02-01 00:45:17 -0800 | [diff] [blame] | 6574 | case cpu_to_be16(ETH_P_IPV6): |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6575 | ip_proto = ipv6_hdr(skb)->nexthdr; |
| 6576 | ihl = (40 >> 2); |
| 6577 | ipv6 = 1; |
| 6578 | break; |
| 6579 | default: |
| 6580 | ip_proto = ihl = 0; |
| 6581 | break; |
| 6582 | } |
| 6583 | |
| 6584 | csum_bits = TXHDR_CSUM_NONE; |
| 6585 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
| 6586 | u64 start, stuff; |
| 6587 | |
| 6588 | csum_bits = (ip_proto == IPPROTO_TCP ? |
| 6589 | TXHDR_CSUM_TCP : |
| 6590 | (ip_proto == IPPROTO_UDP ? |
| 6591 | TXHDR_CSUM_UDP : TXHDR_CSUM_SCTP)); |
| 6592 | |
| 6593 | start = skb_transport_offset(skb) - |
| 6594 | (pad_bytes + sizeof(struct tx_pkt_hdr)); |
| 6595 | stuff = start + skb->csum_offset; |
| 6596 | |
| 6597 | csum_bits |= (start / 2) << TXHDR_L4START_SHIFT; |
| 6598 | csum_bits |= (stuff / 2) << TXHDR_L4STUFF_SHIFT; |
| 6599 | } |
| 6600 | |
| 6601 | l3off = skb_network_offset(skb) - |
| 6602 | (pad_bytes + sizeof(struct tx_pkt_hdr)); |
| 6603 | |
| 6604 | ret = (((pad_bytes / 2) << TXHDR_PAD_SHIFT) | |
| 6605 | (len << TXHDR_LEN_SHIFT) | |
| 6606 | ((l3off / 2) << TXHDR_L3START_SHIFT) | |
| 6607 | (ihl << TXHDR_IHL_SHIFT) | |
| 6608 | ((eth_proto_inner < 1536) ? TXHDR_LLC : 0) | |
| 6609 | ((eth_proto == ETH_P_8021Q) ? TXHDR_VLAN : 0) | |
| 6610 | (ipv6 ? TXHDR_IP_VER : 0) | |
| 6611 | csum_bits); |
| 6612 | |
| 6613 | return ret; |
| 6614 | } |
| 6615 | |
Stephen Hemminger | 61357325 | 2009-08-31 19:50:58 +0000 | [diff] [blame] | 6616 | static netdev_tx_t niu_start_xmit(struct sk_buff *skb, |
| 6617 | struct net_device *dev) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6618 | { |
| 6619 | struct niu *np = netdev_priv(dev); |
| 6620 | unsigned long align, headroom; |
David S. Miller | b4c2163 | 2008-07-15 03:48:19 -0700 | [diff] [blame] | 6621 | struct netdev_queue *txq; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6622 | struct tx_ring_info *rp; |
| 6623 | struct tx_pkt_hdr *tp; |
| 6624 | unsigned int len, nfg; |
| 6625 | struct ethhdr *ehdr; |
| 6626 | int prod, i, tlen; |
| 6627 | u64 mapping, mrk; |
| 6628 | |
David S. Miller | b4c2163 | 2008-07-15 03:48:19 -0700 | [diff] [blame] | 6629 | i = skb_get_queue_mapping(skb); |
| 6630 | rp = &np->tx_rings[i]; |
| 6631 | txq = netdev_get_tx_queue(dev, i); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6632 | |
| 6633 | if (niu_tx_avail(rp) <= (skb_shinfo(skb)->nr_frags + 1)) { |
David S. Miller | b4c2163 | 2008-07-15 03:48:19 -0700 | [diff] [blame] | 6634 | netif_tx_stop_queue(txq); |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 6635 | dev_err(np->device, "%s: BUG! Tx ring full when queue awake!\n", dev->name); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6636 | rp->tx_errors++; |
| 6637 | return NETDEV_TX_BUSY; |
| 6638 | } |
| 6639 | |
| 6640 | if (skb->len < ETH_ZLEN) { |
| 6641 | unsigned int pad_bytes = ETH_ZLEN - skb->len; |
| 6642 | |
| 6643 | if (skb_pad(skb, pad_bytes)) |
| 6644 | goto out; |
| 6645 | skb_put(skb, pad_bytes); |
| 6646 | } |
| 6647 | |
| 6648 | len = sizeof(struct tx_pkt_hdr) + 15; |
| 6649 | if (skb_headroom(skb) < len) { |
| 6650 | struct sk_buff *skb_new; |
| 6651 | |
| 6652 | skb_new = skb_realloc_headroom(skb, len); |
| 6653 | if (!skb_new) { |
| 6654 | rp->tx_errors++; |
| 6655 | goto out_drop; |
| 6656 | } |
| 6657 | kfree_skb(skb); |
| 6658 | skb = skb_new; |
David S. Miller | 3ebebcc | 2008-01-04 23:54:06 -0800 | [diff] [blame] | 6659 | } else |
| 6660 | skb_orphan(skb); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6661 | |
| 6662 | align = ((unsigned long) skb->data & (16 - 1)); |
| 6663 | headroom = align + sizeof(struct tx_pkt_hdr); |
| 6664 | |
| 6665 | ehdr = (struct ethhdr *) skb->data; |
| 6666 | tp = (struct tx_pkt_hdr *) skb_push(skb, headroom); |
| 6667 | |
| 6668 | len = skb->len - sizeof(struct tx_pkt_hdr); |
| 6669 | tp->flags = cpu_to_le64(niu_compute_tx_flags(skb, ehdr, align, len)); |
| 6670 | tp->resv = 0; |
| 6671 | |
| 6672 | len = skb_headlen(skb); |
| 6673 | mapping = np->ops->map_single(np->device, skb->data, |
| 6674 | len, DMA_TO_DEVICE); |
| 6675 | |
| 6676 | prod = rp->prod; |
| 6677 | |
| 6678 | rp->tx_buffs[prod].skb = skb; |
| 6679 | rp->tx_buffs[prod].mapping = mapping; |
| 6680 | |
| 6681 | mrk = TX_DESC_SOP; |
| 6682 | if (++rp->mark_counter == rp->mark_freq) { |
| 6683 | rp->mark_counter = 0; |
| 6684 | mrk |= TX_DESC_MARK; |
| 6685 | rp->mark_pending++; |
| 6686 | } |
| 6687 | |
| 6688 | tlen = len; |
| 6689 | nfg = skb_shinfo(skb)->nr_frags; |
| 6690 | while (tlen > 0) { |
| 6691 | tlen -= MAX_TX_DESC_LEN; |
| 6692 | nfg++; |
| 6693 | } |
| 6694 | |
| 6695 | while (len > 0) { |
| 6696 | unsigned int this_len = len; |
| 6697 | |
| 6698 | if (this_len > MAX_TX_DESC_LEN) |
| 6699 | this_len = MAX_TX_DESC_LEN; |
| 6700 | |
| 6701 | niu_set_txd(rp, prod, mapping, this_len, mrk, nfg); |
| 6702 | mrk = nfg = 0; |
| 6703 | |
| 6704 | prod = NEXT_TX(rp, prod); |
| 6705 | mapping += this_len; |
| 6706 | len -= this_len; |
| 6707 | } |
| 6708 | |
| 6709 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { |
| 6710 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; |
| 6711 | |
| 6712 | len = frag->size; |
| 6713 | mapping = np->ops->map_page(np->device, frag->page, |
| 6714 | frag->page_offset, len, |
| 6715 | DMA_TO_DEVICE); |
| 6716 | |
| 6717 | rp->tx_buffs[prod].skb = NULL; |
| 6718 | rp->tx_buffs[prod].mapping = mapping; |
| 6719 | |
| 6720 | niu_set_txd(rp, prod, mapping, len, 0, 0); |
| 6721 | |
| 6722 | prod = NEXT_TX(rp, prod); |
| 6723 | } |
| 6724 | |
| 6725 | if (prod < rp->prod) |
| 6726 | rp->wrap_bit ^= TX_RING_KICK_WRAP; |
| 6727 | rp->prod = prod; |
| 6728 | |
| 6729 | nw64(TX_RING_KICK(rp->tx_channel), rp->wrap_bit | (prod << 3)); |
| 6730 | |
| 6731 | if (unlikely(niu_tx_avail(rp) <= (MAX_SKB_FRAGS + 1))) { |
David S. Miller | b4c2163 | 2008-07-15 03:48:19 -0700 | [diff] [blame] | 6732 | netif_tx_stop_queue(txq); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6733 | if (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp)) |
David S. Miller | b4c2163 | 2008-07-15 03:48:19 -0700 | [diff] [blame] | 6734 | netif_tx_wake_queue(txq); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6735 | } |
| 6736 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6737 | out: |
| 6738 | return NETDEV_TX_OK; |
| 6739 | |
| 6740 | out_drop: |
| 6741 | rp->tx_errors++; |
| 6742 | kfree_skb(skb); |
| 6743 | goto out; |
| 6744 | } |
| 6745 | |
| 6746 | static int niu_change_mtu(struct net_device *dev, int new_mtu) |
| 6747 | { |
| 6748 | struct niu *np = netdev_priv(dev); |
| 6749 | int err, orig_jumbo, new_jumbo; |
| 6750 | |
| 6751 | if (new_mtu < 68 || new_mtu > NIU_MAX_MTU) |
| 6752 | return -EINVAL; |
| 6753 | |
| 6754 | orig_jumbo = (dev->mtu > ETH_DATA_LEN); |
| 6755 | new_jumbo = (new_mtu > ETH_DATA_LEN); |
| 6756 | |
| 6757 | dev->mtu = new_mtu; |
| 6758 | |
| 6759 | if (!netif_running(dev) || |
| 6760 | (orig_jumbo == new_jumbo)) |
| 6761 | return 0; |
| 6762 | |
| 6763 | niu_full_shutdown(np, dev); |
| 6764 | |
| 6765 | niu_free_channels(np); |
| 6766 | |
| 6767 | niu_enable_napi(np); |
| 6768 | |
| 6769 | err = niu_alloc_channels(np); |
| 6770 | if (err) |
| 6771 | return err; |
| 6772 | |
| 6773 | spin_lock_irq(&np->lock); |
| 6774 | |
| 6775 | err = niu_init_hw(np); |
| 6776 | if (!err) { |
| 6777 | init_timer(&np->timer); |
| 6778 | np->timer.expires = jiffies + HZ; |
| 6779 | np->timer.data = (unsigned long) np; |
| 6780 | np->timer.function = niu_timer; |
| 6781 | |
| 6782 | err = niu_enable_interrupts(np, 1); |
| 6783 | if (err) |
| 6784 | niu_stop_hw(np); |
| 6785 | } |
| 6786 | |
| 6787 | spin_unlock_irq(&np->lock); |
| 6788 | |
| 6789 | if (!err) { |
David S. Miller | b4c2163 | 2008-07-15 03:48:19 -0700 | [diff] [blame] | 6790 | netif_tx_start_all_queues(dev); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6791 | if (np->link_config.loopback_mode != LOOPBACK_DISABLED) |
| 6792 | netif_carrier_on(dev); |
| 6793 | |
| 6794 | add_timer(&np->timer); |
| 6795 | } |
| 6796 | |
| 6797 | return err; |
| 6798 | } |
| 6799 | |
| 6800 | static void niu_get_drvinfo(struct net_device *dev, |
| 6801 | struct ethtool_drvinfo *info) |
| 6802 | { |
| 6803 | struct niu *np = netdev_priv(dev); |
| 6804 | struct niu_vpd *vpd = &np->vpd; |
| 6805 | |
| 6806 | strcpy(info->driver, DRV_MODULE_NAME); |
| 6807 | strcpy(info->version, DRV_MODULE_VERSION); |
| 6808 | sprintf(info->fw_version, "%d.%d", |
| 6809 | vpd->fcode_major, vpd->fcode_minor); |
| 6810 | if (np->parent->plat_type != PLAT_TYPE_NIU) |
| 6811 | strcpy(info->bus_info, pci_name(np->pdev)); |
| 6812 | } |
| 6813 | |
| 6814 | static int niu_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 6815 | { |
| 6816 | struct niu *np = netdev_priv(dev); |
| 6817 | struct niu_link_config *lp; |
| 6818 | |
| 6819 | lp = &np->link_config; |
| 6820 | |
| 6821 | memset(cmd, 0, sizeof(*cmd)); |
| 6822 | cmd->phy_address = np->phy_addr; |
| 6823 | cmd->supported = lp->supported; |
Constantin Baranov | 38bb045d | 2009-02-18 17:53:20 -0800 | [diff] [blame] | 6824 | cmd->advertising = lp->active_advertising; |
| 6825 | cmd->autoneg = lp->active_autoneg; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6826 | cmd->speed = lp->active_speed; |
| 6827 | cmd->duplex = lp->active_duplex; |
Constantin Baranov | 38bb045d | 2009-02-18 17:53:20 -0800 | [diff] [blame] | 6828 | cmd->port = (np->flags & NIU_FLAGS_FIBER) ? PORT_FIBRE : PORT_TP; |
| 6829 | cmd->transceiver = (np->flags & NIU_FLAGS_XCVR_SERDES) ? |
| 6830 | XCVR_EXTERNAL : XCVR_INTERNAL; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6831 | |
| 6832 | return 0; |
| 6833 | } |
| 6834 | |
| 6835 | static int niu_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 6836 | { |
Constantin Baranov | 38bb045d | 2009-02-18 17:53:20 -0800 | [diff] [blame] | 6837 | struct niu *np = netdev_priv(dev); |
| 6838 | struct niu_link_config *lp = &np->link_config; |
| 6839 | |
| 6840 | lp->advertising = cmd->advertising; |
| 6841 | lp->speed = cmd->speed; |
| 6842 | lp->duplex = cmd->duplex; |
| 6843 | lp->autoneg = cmd->autoneg; |
| 6844 | return niu_init_link(np); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6845 | } |
| 6846 | |
| 6847 | static u32 niu_get_msglevel(struct net_device *dev) |
| 6848 | { |
| 6849 | struct niu *np = netdev_priv(dev); |
| 6850 | return np->msg_enable; |
| 6851 | } |
| 6852 | |
| 6853 | static void niu_set_msglevel(struct net_device *dev, u32 value) |
| 6854 | { |
| 6855 | struct niu *np = netdev_priv(dev); |
| 6856 | np->msg_enable = value; |
| 6857 | } |
| 6858 | |
Constantin Baranov | 38bb045d | 2009-02-18 17:53:20 -0800 | [diff] [blame] | 6859 | static int niu_nway_reset(struct net_device *dev) |
| 6860 | { |
| 6861 | struct niu *np = netdev_priv(dev); |
| 6862 | |
| 6863 | if (np->link_config.autoneg) |
| 6864 | return niu_init_link(np); |
| 6865 | |
| 6866 | return 0; |
| 6867 | } |
| 6868 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 6869 | static int niu_get_eeprom_len(struct net_device *dev) |
| 6870 | { |
| 6871 | struct niu *np = netdev_priv(dev); |
| 6872 | |
| 6873 | return np->eeprom_len; |
| 6874 | } |
| 6875 | |
| 6876 | static int niu_get_eeprom(struct net_device *dev, |
| 6877 | struct ethtool_eeprom *eeprom, u8 *data) |
| 6878 | { |
| 6879 | struct niu *np = netdev_priv(dev); |
| 6880 | u32 offset, len, val; |
| 6881 | |
| 6882 | offset = eeprom->offset; |
| 6883 | len = eeprom->len; |
| 6884 | |
| 6885 | if (offset + len < offset) |
| 6886 | return -EINVAL; |
| 6887 | if (offset >= np->eeprom_len) |
| 6888 | return -EINVAL; |
| 6889 | if (offset + len > np->eeprom_len) |
| 6890 | len = eeprom->len = np->eeprom_len - offset; |
| 6891 | |
| 6892 | if (offset & 3) { |
| 6893 | u32 b_offset, b_count; |
| 6894 | |
| 6895 | b_offset = offset & 3; |
| 6896 | b_count = 4 - b_offset; |
| 6897 | if (b_count > len) |
| 6898 | b_count = len; |
| 6899 | |
| 6900 | val = nr64(ESPC_NCR((offset - b_offset) / 4)); |
| 6901 | memcpy(data, ((char *)&val) + b_offset, b_count); |
| 6902 | data += b_count; |
| 6903 | len -= b_count; |
| 6904 | offset += b_count; |
| 6905 | } |
| 6906 | while (len >= 4) { |
| 6907 | val = nr64(ESPC_NCR(offset / 4)); |
| 6908 | memcpy(data, &val, 4); |
| 6909 | data += 4; |
| 6910 | len -= 4; |
| 6911 | offset += 4; |
| 6912 | } |
| 6913 | if (len) { |
| 6914 | val = nr64(ESPC_NCR(offset / 4)); |
| 6915 | memcpy(data, &val, len); |
| 6916 | } |
| 6917 | return 0; |
| 6918 | } |
| 6919 | |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 6920 | static void niu_ethflow_to_l3proto(int flow_type, u8 *pid) |
| 6921 | { |
| 6922 | switch (flow_type) { |
| 6923 | case TCP_V4_FLOW: |
| 6924 | case TCP_V6_FLOW: |
| 6925 | *pid = IPPROTO_TCP; |
| 6926 | break; |
| 6927 | case UDP_V4_FLOW: |
| 6928 | case UDP_V6_FLOW: |
| 6929 | *pid = IPPROTO_UDP; |
| 6930 | break; |
| 6931 | case SCTP_V4_FLOW: |
| 6932 | case SCTP_V6_FLOW: |
| 6933 | *pid = IPPROTO_SCTP; |
| 6934 | break; |
| 6935 | case AH_V4_FLOW: |
| 6936 | case AH_V6_FLOW: |
| 6937 | *pid = IPPROTO_AH; |
| 6938 | break; |
| 6939 | case ESP_V4_FLOW: |
| 6940 | case ESP_V6_FLOW: |
| 6941 | *pid = IPPROTO_ESP; |
| 6942 | break; |
| 6943 | default: |
| 6944 | *pid = 0; |
| 6945 | break; |
| 6946 | } |
| 6947 | } |
| 6948 | |
| 6949 | static int niu_class_to_ethflow(u64 class, int *flow_type) |
| 6950 | { |
| 6951 | switch (class) { |
| 6952 | case CLASS_CODE_TCP_IPV4: |
| 6953 | *flow_type = TCP_V4_FLOW; |
| 6954 | break; |
| 6955 | case CLASS_CODE_UDP_IPV4: |
| 6956 | *flow_type = UDP_V4_FLOW; |
| 6957 | break; |
| 6958 | case CLASS_CODE_AH_ESP_IPV4: |
| 6959 | *flow_type = AH_V4_FLOW; |
| 6960 | break; |
| 6961 | case CLASS_CODE_SCTP_IPV4: |
| 6962 | *flow_type = SCTP_V4_FLOW; |
| 6963 | break; |
| 6964 | case CLASS_CODE_TCP_IPV6: |
| 6965 | *flow_type = TCP_V6_FLOW; |
| 6966 | break; |
| 6967 | case CLASS_CODE_UDP_IPV6: |
| 6968 | *flow_type = UDP_V6_FLOW; |
| 6969 | break; |
| 6970 | case CLASS_CODE_AH_ESP_IPV6: |
| 6971 | *flow_type = AH_V6_FLOW; |
| 6972 | break; |
| 6973 | case CLASS_CODE_SCTP_IPV6: |
| 6974 | *flow_type = SCTP_V6_FLOW; |
| 6975 | break; |
| 6976 | case CLASS_CODE_USER_PROG1: |
| 6977 | case CLASS_CODE_USER_PROG2: |
| 6978 | case CLASS_CODE_USER_PROG3: |
| 6979 | case CLASS_CODE_USER_PROG4: |
| 6980 | *flow_type = IP_USER_FLOW; |
| 6981 | break; |
| 6982 | default: |
| 6983 | return 0; |
| 6984 | } |
| 6985 | |
| 6986 | return 1; |
| 6987 | } |
| 6988 | |
Santwona Behera | b4653e9 | 2008-07-02 03:49:11 -0700 | [diff] [blame] | 6989 | static int niu_ethflow_to_class(int flow_type, u64 *class) |
| 6990 | { |
| 6991 | switch (flow_type) { |
| 6992 | case TCP_V4_FLOW: |
| 6993 | *class = CLASS_CODE_TCP_IPV4; |
| 6994 | break; |
| 6995 | case UDP_V4_FLOW: |
| 6996 | *class = CLASS_CODE_UDP_IPV4; |
| 6997 | break; |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 6998 | case AH_V4_FLOW: |
| 6999 | case ESP_V4_FLOW: |
Santwona Behera | b4653e9 | 2008-07-02 03:49:11 -0700 | [diff] [blame] | 7000 | *class = CLASS_CODE_AH_ESP_IPV4; |
| 7001 | break; |
| 7002 | case SCTP_V4_FLOW: |
| 7003 | *class = CLASS_CODE_SCTP_IPV4; |
| 7004 | break; |
| 7005 | case TCP_V6_FLOW: |
| 7006 | *class = CLASS_CODE_TCP_IPV6; |
| 7007 | break; |
| 7008 | case UDP_V6_FLOW: |
| 7009 | *class = CLASS_CODE_UDP_IPV6; |
| 7010 | break; |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7011 | case AH_V6_FLOW: |
| 7012 | case ESP_V6_FLOW: |
Santwona Behera | b4653e9 | 2008-07-02 03:49:11 -0700 | [diff] [blame] | 7013 | *class = CLASS_CODE_AH_ESP_IPV6; |
| 7014 | break; |
| 7015 | case SCTP_V6_FLOW: |
| 7016 | *class = CLASS_CODE_SCTP_IPV6; |
| 7017 | break; |
| 7018 | default: |
Andreas Schwab | 38c080f | 2008-07-29 23:59:20 -0700 | [diff] [blame] | 7019 | return 0; |
Santwona Behera | b4653e9 | 2008-07-02 03:49:11 -0700 | [diff] [blame] | 7020 | } |
| 7021 | |
| 7022 | return 1; |
| 7023 | } |
| 7024 | |
| 7025 | static u64 niu_flowkey_to_ethflow(u64 flow_key) |
| 7026 | { |
| 7027 | u64 ethflow = 0; |
| 7028 | |
Santwona Behera | b4653e9 | 2008-07-02 03:49:11 -0700 | [diff] [blame] | 7029 | if (flow_key & FLOW_KEY_L2DA) |
| 7030 | ethflow |= RXH_L2DA; |
| 7031 | if (flow_key & FLOW_KEY_VLAN) |
| 7032 | ethflow |= RXH_VLAN; |
| 7033 | if (flow_key & FLOW_KEY_IPSA) |
| 7034 | ethflow |= RXH_IP_SRC; |
| 7035 | if (flow_key & FLOW_KEY_IPDA) |
| 7036 | ethflow |= RXH_IP_DST; |
| 7037 | if (flow_key & FLOW_KEY_PROTO) |
| 7038 | ethflow |= RXH_L3_PROTO; |
| 7039 | if (flow_key & (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_0_SHIFT)) |
| 7040 | ethflow |= RXH_L4_B_0_1; |
| 7041 | if (flow_key & (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_1_SHIFT)) |
| 7042 | ethflow |= RXH_L4_B_2_3; |
| 7043 | |
| 7044 | return ethflow; |
| 7045 | |
| 7046 | } |
| 7047 | |
| 7048 | static int niu_ethflow_to_flowkey(u64 ethflow, u64 *flow_key) |
| 7049 | { |
| 7050 | u64 key = 0; |
| 7051 | |
Santwona Behera | b4653e9 | 2008-07-02 03:49:11 -0700 | [diff] [blame] | 7052 | if (ethflow & RXH_L2DA) |
| 7053 | key |= FLOW_KEY_L2DA; |
| 7054 | if (ethflow & RXH_VLAN) |
| 7055 | key |= FLOW_KEY_VLAN; |
| 7056 | if (ethflow & RXH_IP_SRC) |
| 7057 | key |= FLOW_KEY_IPSA; |
| 7058 | if (ethflow & RXH_IP_DST) |
| 7059 | key |= FLOW_KEY_IPDA; |
| 7060 | if (ethflow & RXH_L3_PROTO) |
| 7061 | key |= FLOW_KEY_PROTO; |
| 7062 | if (ethflow & RXH_L4_B_0_1) |
| 7063 | key |= (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_0_SHIFT); |
| 7064 | if (ethflow & RXH_L4_B_2_3) |
| 7065 | key |= (FLOW_KEY_L4_BYTE12 << FLOW_KEY_L4_1_SHIFT); |
| 7066 | |
| 7067 | *flow_key = key; |
| 7068 | |
| 7069 | return 1; |
| 7070 | |
| 7071 | } |
| 7072 | |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7073 | static int niu_get_hash_opts(struct niu *np, struct ethtool_rxnfc *nfc) |
Santwona Behera | b4653e9 | 2008-07-02 03:49:11 -0700 | [diff] [blame] | 7074 | { |
Santwona Behera | b4653e9 | 2008-07-02 03:49:11 -0700 | [diff] [blame] | 7075 | u64 class; |
| 7076 | |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7077 | nfc->data = 0; |
Santwona Behera | b4653e9 | 2008-07-02 03:49:11 -0700 | [diff] [blame] | 7078 | |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7079 | if (!niu_ethflow_to_class(nfc->flow_type, &class)) |
Santwona Behera | b4653e9 | 2008-07-02 03:49:11 -0700 | [diff] [blame] | 7080 | return -EINVAL; |
| 7081 | |
| 7082 | if (np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] & |
| 7083 | TCAM_KEY_DISC) |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7084 | nfc->data = RXH_DISCARD; |
Santwona Behera | b4653e9 | 2008-07-02 03:49:11 -0700 | [diff] [blame] | 7085 | else |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7086 | nfc->data = niu_flowkey_to_ethflow(np->parent->flow_key[class - |
Santwona Behera | b4653e9 | 2008-07-02 03:49:11 -0700 | [diff] [blame] | 7087 | CLASS_CODE_USER_PROG1]); |
| 7088 | return 0; |
| 7089 | } |
| 7090 | |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7091 | static void niu_get_ip4fs_from_tcam_key(struct niu_tcam_entry *tp, |
| 7092 | struct ethtool_rx_flow_spec *fsp) |
| 7093 | { |
| 7094 | |
| 7095 | fsp->h_u.tcp_ip4_spec.ip4src = (tp->key[3] & TCAM_V4KEY3_SADDR) >> |
| 7096 | TCAM_V4KEY3_SADDR_SHIFT; |
| 7097 | fsp->h_u.tcp_ip4_spec.ip4dst = (tp->key[3] & TCAM_V4KEY3_DADDR) >> |
| 7098 | TCAM_V4KEY3_DADDR_SHIFT; |
| 7099 | fsp->m_u.tcp_ip4_spec.ip4src = (tp->key_mask[3] & TCAM_V4KEY3_SADDR) >> |
| 7100 | TCAM_V4KEY3_SADDR_SHIFT; |
| 7101 | fsp->m_u.tcp_ip4_spec.ip4dst = (tp->key_mask[3] & TCAM_V4KEY3_DADDR) >> |
| 7102 | TCAM_V4KEY3_DADDR_SHIFT; |
| 7103 | |
| 7104 | fsp->h_u.tcp_ip4_spec.ip4src = |
| 7105 | cpu_to_be32(fsp->h_u.tcp_ip4_spec.ip4src); |
| 7106 | fsp->m_u.tcp_ip4_spec.ip4src = |
| 7107 | cpu_to_be32(fsp->m_u.tcp_ip4_spec.ip4src); |
| 7108 | fsp->h_u.tcp_ip4_spec.ip4dst = |
| 7109 | cpu_to_be32(fsp->h_u.tcp_ip4_spec.ip4dst); |
| 7110 | fsp->m_u.tcp_ip4_spec.ip4dst = |
| 7111 | cpu_to_be32(fsp->m_u.tcp_ip4_spec.ip4dst); |
| 7112 | |
| 7113 | fsp->h_u.tcp_ip4_spec.tos = (tp->key[2] & TCAM_V4KEY2_TOS) >> |
| 7114 | TCAM_V4KEY2_TOS_SHIFT; |
| 7115 | fsp->m_u.tcp_ip4_spec.tos = (tp->key_mask[2] & TCAM_V4KEY2_TOS) >> |
| 7116 | TCAM_V4KEY2_TOS_SHIFT; |
| 7117 | |
| 7118 | switch (fsp->flow_type) { |
| 7119 | case TCP_V4_FLOW: |
| 7120 | case UDP_V4_FLOW: |
| 7121 | case SCTP_V4_FLOW: |
| 7122 | fsp->h_u.tcp_ip4_spec.psrc = |
| 7123 | ((tp->key[2] & TCAM_V4KEY2_PORT_SPI) >> |
| 7124 | TCAM_V4KEY2_PORT_SPI_SHIFT) >> 16; |
| 7125 | fsp->h_u.tcp_ip4_spec.pdst = |
| 7126 | ((tp->key[2] & TCAM_V4KEY2_PORT_SPI) >> |
| 7127 | TCAM_V4KEY2_PORT_SPI_SHIFT) & 0xffff; |
| 7128 | fsp->m_u.tcp_ip4_spec.psrc = |
| 7129 | ((tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >> |
| 7130 | TCAM_V4KEY2_PORT_SPI_SHIFT) >> 16; |
| 7131 | fsp->m_u.tcp_ip4_spec.pdst = |
| 7132 | ((tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >> |
| 7133 | TCAM_V4KEY2_PORT_SPI_SHIFT) & 0xffff; |
| 7134 | |
| 7135 | fsp->h_u.tcp_ip4_spec.psrc = |
| 7136 | cpu_to_be16(fsp->h_u.tcp_ip4_spec.psrc); |
| 7137 | fsp->h_u.tcp_ip4_spec.pdst = |
| 7138 | cpu_to_be16(fsp->h_u.tcp_ip4_spec.pdst); |
| 7139 | fsp->m_u.tcp_ip4_spec.psrc = |
| 7140 | cpu_to_be16(fsp->m_u.tcp_ip4_spec.psrc); |
| 7141 | fsp->m_u.tcp_ip4_spec.pdst = |
| 7142 | cpu_to_be16(fsp->m_u.tcp_ip4_spec.pdst); |
| 7143 | break; |
| 7144 | case AH_V4_FLOW: |
| 7145 | case ESP_V4_FLOW: |
| 7146 | fsp->h_u.ah_ip4_spec.spi = |
| 7147 | (tp->key[2] & TCAM_V4KEY2_PORT_SPI) >> |
| 7148 | TCAM_V4KEY2_PORT_SPI_SHIFT; |
| 7149 | fsp->m_u.ah_ip4_spec.spi = |
| 7150 | (tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >> |
| 7151 | TCAM_V4KEY2_PORT_SPI_SHIFT; |
| 7152 | |
| 7153 | fsp->h_u.ah_ip4_spec.spi = |
| 7154 | cpu_to_be32(fsp->h_u.ah_ip4_spec.spi); |
| 7155 | fsp->m_u.ah_ip4_spec.spi = |
| 7156 | cpu_to_be32(fsp->m_u.ah_ip4_spec.spi); |
| 7157 | break; |
| 7158 | case IP_USER_FLOW: |
| 7159 | fsp->h_u.usr_ip4_spec.l4_4_bytes = |
| 7160 | (tp->key[2] & TCAM_V4KEY2_PORT_SPI) >> |
| 7161 | TCAM_V4KEY2_PORT_SPI_SHIFT; |
| 7162 | fsp->m_u.usr_ip4_spec.l4_4_bytes = |
| 7163 | (tp->key_mask[2] & TCAM_V4KEY2_PORT_SPI) >> |
| 7164 | TCAM_V4KEY2_PORT_SPI_SHIFT; |
| 7165 | |
| 7166 | fsp->h_u.usr_ip4_spec.l4_4_bytes = |
| 7167 | cpu_to_be32(fsp->h_u.usr_ip4_spec.l4_4_bytes); |
| 7168 | fsp->m_u.usr_ip4_spec.l4_4_bytes = |
| 7169 | cpu_to_be32(fsp->m_u.usr_ip4_spec.l4_4_bytes); |
| 7170 | |
| 7171 | fsp->h_u.usr_ip4_spec.proto = |
| 7172 | (tp->key[2] & TCAM_V4KEY2_PROTO) >> |
| 7173 | TCAM_V4KEY2_PROTO_SHIFT; |
| 7174 | fsp->m_u.usr_ip4_spec.proto = |
| 7175 | (tp->key_mask[2] & TCAM_V4KEY2_PROTO) >> |
| 7176 | TCAM_V4KEY2_PROTO_SHIFT; |
| 7177 | |
| 7178 | fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; |
| 7179 | break; |
| 7180 | default: |
| 7181 | break; |
| 7182 | } |
| 7183 | } |
| 7184 | |
| 7185 | static int niu_get_ethtool_tcam_entry(struct niu *np, |
| 7186 | struct ethtool_rxnfc *nfc) |
| 7187 | { |
| 7188 | struct niu_parent *parent = np->parent; |
| 7189 | struct niu_tcam_entry *tp; |
| 7190 | struct ethtool_rx_flow_spec *fsp = &nfc->fs; |
| 7191 | u16 idx; |
| 7192 | u64 class; |
| 7193 | int ret = 0; |
| 7194 | |
| 7195 | idx = tcam_get_index(np, (u16)nfc->fs.location); |
| 7196 | |
| 7197 | tp = &parent->tcam[idx]; |
| 7198 | if (!tp->valid) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 7199 | netdev_info(np->dev, "niu%d: entry [%d] invalid for idx[%d]\n", |
| 7200 | parent->index, (u16)nfc->fs.location, idx); |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7201 | return -EINVAL; |
| 7202 | } |
| 7203 | |
| 7204 | /* fill the flow spec entry */ |
| 7205 | class = (tp->key[0] & TCAM_V4KEY0_CLASS_CODE) >> |
| 7206 | TCAM_V4KEY0_CLASS_CODE_SHIFT; |
| 7207 | ret = niu_class_to_ethflow(class, &fsp->flow_type); |
| 7208 | |
| 7209 | if (ret < 0) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 7210 | netdev_info(np->dev, "niu%d: niu_class_to_ethflow failed\n", |
| 7211 | parent->index); |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7212 | ret = -EINVAL; |
| 7213 | goto out; |
| 7214 | } |
| 7215 | |
| 7216 | if (fsp->flow_type == AH_V4_FLOW || fsp->flow_type == AH_V6_FLOW) { |
| 7217 | u32 proto = (tp->key[2] & TCAM_V4KEY2_PROTO) >> |
| 7218 | TCAM_V4KEY2_PROTO_SHIFT; |
| 7219 | if (proto == IPPROTO_ESP) { |
| 7220 | if (fsp->flow_type == AH_V4_FLOW) |
| 7221 | fsp->flow_type = ESP_V4_FLOW; |
| 7222 | else |
| 7223 | fsp->flow_type = ESP_V6_FLOW; |
| 7224 | } |
| 7225 | } |
| 7226 | |
| 7227 | switch (fsp->flow_type) { |
| 7228 | case TCP_V4_FLOW: |
| 7229 | case UDP_V4_FLOW: |
| 7230 | case SCTP_V4_FLOW: |
| 7231 | case AH_V4_FLOW: |
| 7232 | case ESP_V4_FLOW: |
| 7233 | niu_get_ip4fs_from_tcam_key(tp, fsp); |
| 7234 | break; |
| 7235 | case TCP_V6_FLOW: |
| 7236 | case UDP_V6_FLOW: |
| 7237 | case SCTP_V6_FLOW: |
| 7238 | case AH_V6_FLOW: |
| 7239 | case ESP_V6_FLOW: |
| 7240 | /* Not yet implemented */ |
| 7241 | ret = -EINVAL; |
| 7242 | break; |
| 7243 | case IP_USER_FLOW: |
| 7244 | niu_get_ip4fs_from_tcam_key(tp, fsp); |
| 7245 | break; |
| 7246 | default: |
| 7247 | ret = -EINVAL; |
| 7248 | break; |
| 7249 | } |
| 7250 | |
| 7251 | if (ret < 0) |
| 7252 | goto out; |
| 7253 | |
| 7254 | if (tp->assoc_data & TCAM_ASSOCDATA_DISC) |
| 7255 | fsp->ring_cookie = RX_CLS_FLOW_DISC; |
| 7256 | else |
| 7257 | fsp->ring_cookie = (tp->assoc_data & TCAM_ASSOCDATA_OFFSET) >> |
| 7258 | TCAM_ASSOCDATA_OFFSET_SHIFT; |
| 7259 | |
| 7260 | /* put the tcam size here */ |
| 7261 | nfc->data = tcam_get_size(np); |
| 7262 | out: |
| 7263 | return ret; |
| 7264 | } |
| 7265 | |
| 7266 | static int niu_get_ethtool_tcam_all(struct niu *np, |
| 7267 | struct ethtool_rxnfc *nfc, |
| 7268 | u32 *rule_locs) |
| 7269 | { |
| 7270 | struct niu_parent *parent = np->parent; |
| 7271 | struct niu_tcam_entry *tp; |
| 7272 | int i, idx, cnt; |
| 7273 | u16 n_entries; |
| 7274 | unsigned long flags; |
| 7275 | |
| 7276 | |
| 7277 | /* put the tcam size here */ |
| 7278 | nfc->data = tcam_get_size(np); |
| 7279 | |
| 7280 | niu_lock_parent(np, flags); |
| 7281 | n_entries = nfc->rule_cnt; |
| 7282 | for (cnt = 0, i = 0; i < nfc->data; i++) { |
| 7283 | idx = tcam_get_index(np, i); |
| 7284 | tp = &parent->tcam[idx]; |
| 7285 | if (!tp->valid) |
| 7286 | continue; |
| 7287 | rule_locs[cnt] = i; |
| 7288 | cnt++; |
| 7289 | } |
| 7290 | niu_unlock_parent(np, flags); |
| 7291 | |
| 7292 | if (n_entries != cnt) { |
| 7293 | /* print warning, this should not happen */ |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 7294 | netdev_info(np->dev, "niu%d: In %s(): n_entries[%d] != cnt[%d]!!!\n", |
| 7295 | np->parent->index, __func__, n_entries, cnt); |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7296 | } |
| 7297 | |
| 7298 | return 0; |
| 7299 | } |
| 7300 | |
| 7301 | static int niu_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd, |
| 7302 | void *rule_locs) |
Santwona Behera | b4653e9 | 2008-07-02 03:49:11 -0700 | [diff] [blame] | 7303 | { |
| 7304 | struct niu *np = netdev_priv(dev); |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7305 | int ret = 0; |
| 7306 | |
| 7307 | switch (cmd->cmd) { |
| 7308 | case ETHTOOL_GRXFH: |
| 7309 | ret = niu_get_hash_opts(np, cmd); |
| 7310 | break; |
| 7311 | case ETHTOOL_GRXRINGS: |
| 7312 | cmd->data = np->num_rx_rings; |
| 7313 | break; |
| 7314 | case ETHTOOL_GRXCLSRLCNT: |
| 7315 | cmd->rule_cnt = tcam_get_valid_entry_cnt(np); |
| 7316 | break; |
| 7317 | case ETHTOOL_GRXCLSRULE: |
| 7318 | ret = niu_get_ethtool_tcam_entry(np, cmd); |
| 7319 | break; |
| 7320 | case ETHTOOL_GRXCLSRLALL: |
| 7321 | ret = niu_get_ethtool_tcam_all(np, cmd, (u32 *)rule_locs); |
| 7322 | break; |
| 7323 | default: |
| 7324 | ret = -EINVAL; |
| 7325 | break; |
| 7326 | } |
| 7327 | |
| 7328 | return ret; |
| 7329 | } |
| 7330 | |
| 7331 | static int niu_set_hash_opts(struct niu *np, struct ethtool_rxnfc *nfc) |
| 7332 | { |
Santwona Behera | b4653e9 | 2008-07-02 03:49:11 -0700 | [diff] [blame] | 7333 | u64 class; |
| 7334 | u64 flow_key = 0; |
| 7335 | unsigned long flags; |
| 7336 | |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7337 | if (!niu_ethflow_to_class(nfc->flow_type, &class)) |
Santwona Behera | b4653e9 | 2008-07-02 03:49:11 -0700 | [diff] [blame] | 7338 | return -EINVAL; |
| 7339 | |
| 7340 | if (class < CLASS_CODE_USER_PROG1 || |
| 7341 | class > CLASS_CODE_SCTP_IPV6) |
| 7342 | return -EINVAL; |
| 7343 | |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7344 | if (nfc->data & RXH_DISCARD) { |
Santwona Behera | b4653e9 | 2008-07-02 03:49:11 -0700 | [diff] [blame] | 7345 | niu_lock_parent(np, flags); |
| 7346 | flow_key = np->parent->tcam_key[class - |
| 7347 | CLASS_CODE_USER_PROG1]; |
| 7348 | flow_key |= TCAM_KEY_DISC; |
| 7349 | nw64(TCAM_KEY(class - CLASS_CODE_USER_PROG1), flow_key); |
| 7350 | np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] = flow_key; |
| 7351 | niu_unlock_parent(np, flags); |
| 7352 | return 0; |
| 7353 | } else { |
| 7354 | /* Discard was set before, but is not set now */ |
| 7355 | if (np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] & |
| 7356 | TCAM_KEY_DISC) { |
| 7357 | niu_lock_parent(np, flags); |
| 7358 | flow_key = np->parent->tcam_key[class - |
| 7359 | CLASS_CODE_USER_PROG1]; |
| 7360 | flow_key &= ~TCAM_KEY_DISC; |
| 7361 | nw64(TCAM_KEY(class - CLASS_CODE_USER_PROG1), |
| 7362 | flow_key); |
| 7363 | np->parent->tcam_key[class - CLASS_CODE_USER_PROG1] = |
| 7364 | flow_key; |
| 7365 | niu_unlock_parent(np, flags); |
| 7366 | } |
| 7367 | } |
| 7368 | |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7369 | if (!niu_ethflow_to_flowkey(nfc->data, &flow_key)) |
Santwona Behera | b4653e9 | 2008-07-02 03:49:11 -0700 | [diff] [blame] | 7370 | return -EINVAL; |
| 7371 | |
| 7372 | niu_lock_parent(np, flags); |
| 7373 | nw64(FLOW_KEY(class - CLASS_CODE_USER_PROG1), flow_key); |
| 7374 | np->parent->flow_key[class - CLASS_CODE_USER_PROG1] = flow_key; |
| 7375 | niu_unlock_parent(np, flags); |
| 7376 | |
| 7377 | return 0; |
| 7378 | } |
| 7379 | |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7380 | static void niu_get_tcamkey_from_ip4fs(struct ethtool_rx_flow_spec *fsp, |
| 7381 | struct niu_tcam_entry *tp, |
| 7382 | int l2_rdc_tab, u64 class) |
| 7383 | { |
| 7384 | u8 pid = 0; |
| 7385 | u32 sip, dip, sipm, dipm, spi, spim; |
| 7386 | u16 sport, dport, spm, dpm; |
| 7387 | |
| 7388 | sip = be32_to_cpu(fsp->h_u.tcp_ip4_spec.ip4src); |
| 7389 | sipm = be32_to_cpu(fsp->m_u.tcp_ip4_spec.ip4src); |
| 7390 | dip = be32_to_cpu(fsp->h_u.tcp_ip4_spec.ip4dst); |
| 7391 | dipm = be32_to_cpu(fsp->m_u.tcp_ip4_spec.ip4dst); |
| 7392 | |
| 7393 | tp->key[0] = class << TCAM_V4KEY0_CLASS_CODE_SHIFT; |
| 7394 | tp->key_mask[0] = TCAM_V4KEY0_CLASS_CODE; |
| 7395 | tp->key[1] = (u64)l2_rdc_tab << TCAM_V4KEY1_L2RDCNUM_SHIFT; |
| 7396 | tp->key_mask[1] = TCAM_V4KEY1_L2RDCNUM; |
| 7397 | |
| 7398 | tp->key[3] = (u64)sip << TCAM_V4KEY3_SADDR_SHIFT; |
| 7399 | tp->key[3] |= dip; |
| 7400 | |
| 7401 | tp->key_mask[3] = (u64)sipm << TCAM_V4KEY3_SADDR_SHIFT; |
| 7402 | tp->key_mask[3] |= dipm; |
| 7403 | |
| 7404 | tp->key[2] |= ((u64)fsp->h_u.tcp_ip4_spec.tos << |
| 7405 | TCAM_V4KEY2_TOS_SHIFT); |
| 7406 | tp->key_mask[2] |= ((u64)fsp->m_u.tcp_ip4_spec.tos << |
| 7407 | TCAM_V4KEY2_TOS_SHIFT); |
| 7408 | switch (fsp->flow_type) { |
| 7409 | case TCP_V4_FLOW: |
| 7410 | case UDP_V4_FLOW: |
| 7411 | case SCTP_V4_FLOW: |
| 7412 | sport = be16_to_cpu(fsp->h_u.tcp_ip4_spec.psrc); |
| 7413 | spm = be16_to_cpu(fsp->m_u.tcp_ip4_spec.psrc); |
| 7414 | dport = be16_to_cpu(fsp->h_u.tcp_ip4_spec.pdst); |
| 7415 | dpm = be16_to_cpu(fsp->m_u.tcp_ip4_spec.pdst); |
| 7416 | |
| 7417 | tp->key[2] |= (((u64)sport << 16) | dport); |
| 7418 | tp->key_mask[2] |= (((u64)spm << 16) | dpm); |
| 7419 | niu_ethflow_to_l3proto(fsp->flow_type, &pid); |
| 7420 | break; |
| 7421 | case AH_V4_FLOW: |
| 7422 | case ESP_V4_FLOW: |
| 7423 | spi = be32_to_cpu(fsp->h_u.ah_ip4_spec.spi); |
| 7424 | spim = be32_to_cpu(fsp->m_u.ah_ip4_spec.spi); |
| 7425 | |
| 7426 | tp->key[2] |= spi; |
| 7427 | tp->key_mask[2] |= spim; |
| 7428 | niu_ethflow_to_l3proto(fsp->flow_type, &pid); |
| 7429 | break; |
| 7430 | case IP_USER_FLOW: |
| 7431 | spi = be32_to_cpu(fsp->h_u.usr_ip4_spec.l4_4_bytes); |
| 7432 | spim = be32_to_cpu(fsp->m_u.usr_ip4_spec.l4_4_bytes); |
| 7433 | |
| 7434 | tp->key[2] |= spi; |
| 7435 | tp->key_mask[2] |= spim; |
| 7436 | pid = fsp->h_u.usr_ip4_spec.proto; |
| 7437 | break; |
| 7438 | default: |
| 7439 | break; |
| 7440 | } |
| 7441 | |
| 7442 | tp->key[2] |= ((u64)pid << TCAM_V4KEY2_PROTO_SHIFT); |
| 7443 | if (pid) { |
| 7444 | tp->key_mask[2] |= TCAM_V4KEY2_PROTO; |
| 7445 | } |
| 7446 | } |
| 7447 | |
| 7448 | static int niu_add_ethtool_tcam_entry(struct niu *np, |
| 7449 | struct ethtool_rxnfc *nfc) |
| 7450 | { |
| 7451 | struct niu_parent *parent = np->parent; |
| 7452 | struct niu_tcam_entry *tp; |
| 7453 | struct ethtool_rx_flow_spec *fsp = &nfc->fs; |
| 7454 | struct niu_rdc_tables *rdc_table = &parent->rdc_group_cfg[np->port]; |
| 7455 | int l2_rdc_table = rdc_table->first_table_num; |
| 7456 | u16 idx; |
| 7457 | u64 class; |
| 7458 | unsigned long flags; |
| 7459 | int err, ret; |
| 7460 | |
| 7461 | ret = 0; |
| 7462 | |
| 7463 | idx = nfc->fs.location; |
| 7464 | if (idx >= tcam_get_size(np)) |
| 7465 | return -EINVAL; |
| 7466 | |
| 7467 | if (fsp->flow_type == IP_USER_FLOW) { |
| 7468 | int i; |
| 7469 | int add_usr_cls = 0; |
| 7470 | int ipv6 = 0; |
| 7471 | struct ethtool_usrip4_spec *uspec = &fsp->h_u.usr_ip4_spec; |
| 7472 | struct ethtool_usrip4_spec *umask = &fsp->m_u.usr_ip4_spec; |
| 7473 | |
| 7474 | niu_lock_parent(np, flags); |
| 7475 | |
| 7476 | for (i = 0; i < NIU_L3_PROG_CLS; i++) { |
| 7477 | if (parent->l3_cls[i]) { |
| 7478 | if (uspec->proto == parent->l3_cls_pid[i]) { |
| 7479 | class = parent->l3_cls[i]; |
| 7480 | parent->l3_cls_refcnt[i]++; |
| 7481 | add_usr_cls = 1; |
| 7482 | break; |
| 7483 | } |
| 7484 | } else { |
| 7485 | /* Program new user IP class */ |
| 7486 | switch (i) { |
| 7487 | case 0: |
| 7488 | class = CLASS_CODE_USER_PROG1; |
| 7489 | break; |
| 7490 | case 1: |
| 7491 | class = CLASS_CODE_USER_PROG2; |
| 7492 | break; |
| 7493 | case 2: |
| 7494 | class = CLASS_CODE_USER_PROG3; |
| 7495 | break; |
| 7496 | case 3: |
| 7497 | class = CLASS_CODE_USER_PROG4; |
| 7498 | break; |
| 7499 | default: |
| 7500 | break; |
| 7501 | } |
| 7502 | if (uspec->ip_ver == ETH_RX_NFC_IP6) |
| 7503 | ipv6 = 1; |
| 7504 | ret = tcam_user_ip_class_set(np, class, ipv6, |
| 7505 | uspec->proto, |
| 7506 | uspec->tos, |
| 7507 | umask->tos); |
| 7508 | if (ret) |
| 7509 | goto out; |
| 7510 | |
| 7511 | ret = tcam_user_ip_class_enable(np, class, 1); |
| 7512 | if (ret) |
| 7513 | goto out; |
| 7514 | parent->l3_cls[i] = class; |
| 7515 | parent->l3_cls_pid[i] = uspec->proto; |
| 7516 | parent->l3_cls_refcnt[i]++; |
| 7517 | add_usr_cls = 1; |
| 7518 | break; |
| 7519 | } |
| 7520 | } |
| 7521 | if (!add_usr_cls) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 7522 | netdev_info(np->dev, "niu%d: %s(): Could not find/insert class for pid %d\n", |
| 7523 | parent->index, __func__, uspec->proto); |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7524 | ret = -EINVAL; |
| 7525 | goto out; |
| 7526 | } |
| 7527 | niu_unlock_parent(np, flags); |
| 7528 | } else { |
| 7529 | if (!niu_ethflow_to_class(fsp->flow_type, &class)) { |
| 7530 | return -EINVAL; |
| 7531 | } |
| 7532 | } |
| 7533 | |
| 7534 | niu_lock_parent(np, flags); |
| 7535 | |
| 7536 | idx = tcam_get_index(np, idx); |
| 7537 | tp = &parent->tcam[idx]; |
| 7538 | |
| 7539 | memset(tp, 0, sizeof(*tp)); |
| 7540 | |
| 7541 | /* fill in the tcam key and mask */ |
| 7542 | switch (fsp->flow_type) { |
| 7543 | case TCP_V4_FLOW: |
| 7544 | case UDP_V4_FLOW: |
| 7545 | case SCTP_V4_FLOW: |
| 7546 | case AH_V4_FLOW: |
| 7547 | case ESP_V4_FLOW: |
| 7548 | niu_get_tcamkey_from_ip4fs(fsp, tp, l2_rdc_table, class); |
| 7549 | break; |
| 7550 | case TCP_V6_FLOW: |
| 7551 | case UDP_V6_FLOW: |
| 7552 | case SCTP_V6_FLOW: |
| 7553 | case AH_V6_FLOW: |
| 7554 | case ESP_V6_FLOW: |
| 7555 | /* Not yet implemented */ |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 7556 | netdev_info(np->dev, "niu%d: In %s(): flow %d for IPv6 not implemented\n", |
| 7557 | parent->index, __func__, fsp->flow_type); |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7558 | ret = -EINVAL; |
| 7559 | goto out; |
| 7560 | case IP_USER_FLOW: |
| 7561 | if (fsp->h_u.usr_ip4_spec.ip_ver == ETH_RX_NFC_IP4) { |
| 7562 | niu_get_tcamkey_from_ip4fs(fsp, tp, l2_rdc_table, |
| 7563 | class); |
| 7564 | } else { |
| 7565 | /* Not yet implemented */ |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 7566 | netdev_info(np->dev, "niu%d: In %s(): usr flow for IPv6 not implemented\n", |
| 7567 | parent->index, __func__); |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7568 | ret = -EINVAL; |
| 7569 | goto out; |
| 7570 | } |
| 7571 | break; |
| 7572 | default: |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 7573 | netdev_info(np->dev, "niu%d: In %s(): Unknown flow type %d\n", |
| 7574 | parent->index, __func__, fsp->flow_type); |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7575 | ret = -EINVAL; |
| 7576 | goto out; |
| 7577 | } |
| 7578 | |
| 7579 | /* fill in the assoc data */ |
| 7580 | if (fsp->ring_cookie == RX_CLS_FLOW_DISC) { |
| 7581 | tp->assoc_data = TCAM_ASSOCDATA_DISC; |
| 7582 | } else { |
| 7583 | if (fsp->ring_cookie >= np->num_rx_rings) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 7584 | netdev_info(np->dev, "niu%d: In %s(): Invalid RX ring %lld\n", |
| 7585 | parent->index, __func__, |
| 7586 | (long long)fsp->ring_cookie); |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7587 | ret = -EINVAL; |
| 7588 | goto out; |
| 7589 | } |
| 7590 | tp->assoc_data = (TCAM_ASSOCDATA_TRES_USE_OFFSET | |
| 7591 | (fsp->ring_cookie << |
| 7592 | TCAM_ASSOCDATA_OFFSET_SHIFT)); |
| 7593 | } |
| 7594 | |
| 7595 | err = tcam_write(np, idx, tp->key, tp->key_mask); |
| 7596 | if (err) { |
| 7597 | ret = -EINVAL; |
| 7598 | goto out; |
| 7599 | } |
| 7600 | err = tcam_assoc_write(np, idx, tp->assoc_data); |
| 7601 | if (err) { |
| 7602 | ret = -EINVAL; |
| 7603 | goto out; |
| 7604 | } |
| 7605 | |
| 7606 | /* validate the entry */ |
| 7607 | tp->valid = 1; |
| 7608 | np->clas.tcam_valid_entries++; |
| 7609 | out: |
| 7610 | niu_unlock_parent(np, flags); |
| 7611 | |
| 7612 | return ret; |
| 7613 | } |
| 7614 | |
| 7615 | static int niu_del_ethtool_tcam_entry(struct niu *np, u32 loc) |
| 7616 | { |
| 7617 | struct niu_parent *parent = np->parent; |
| 7618 | struct niu_tcam_entry *tp; |
| 7619 | u16 idx; |
| 7620 | unsigned long flags; |
| 7621 | u64 class; |
| 7622 | int ret = 0; |
| 7623 | |
| 7624 | if (loc >= tcam_get_size(np)) |
| 7625 | return -EINVAL; |
| 7626 | |
| 7627 | niu_lock_parent(np, flags); |
| 7628 | |
| 7629 | idx = tcam_get_index(np, loc); |
| 7630 | tp = &parent->tcam[idx]; |
| 7631 | |
| 7632 | /* if the entry is of a user defined class, then update*/ |
| 7633 | class = (tp->key[0] & TCAM_V4KEY0_CLASS_CODE) >> |
| 7634 | TCAM_V4KEY0_CLASS_CODE_SHIFT; |
| 7635 | |
| 7636 | if (class >= CLASS_CODE_USER_PROG1 && class <= CLASS_CODE_USER_PROG4) { |
| 7637 | int i; |
| 7638 | for (i = 0; i < NIU_L3_PROG_CLS; i++) { |
| 7639 | if (parent->l3_cls[i] == class) { |
| 7640 | parent->l3_cls_refcnt[i]--; |
| 7641 | if (!parent->l3_cls_refcnt[i]) { |
| 7642 | /* disable class */ |
| 7643 | ret = tcam_user_ip_class_enable(np, |
| 7644 | class, |
| 7645 | 0); |
| 7646 | if (ret) |
| 7647 | goto out; |
| 7648 | parent->l3_cls[i] = 0; |
| 7649 | parent->l3_cls_pid[i] = 0; |
| 7650 | } |
| 7651 | break; |
| 7652 | } |
| 7653 | } |
| 7654 | if (i == NIU_L3_PROG_CLS) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 7655 | netdev_info(np->dev, "niu%d: In %s(): Usr class 0x%llx not found\n", |
| 7656 | parent->index, __func__, |
| 7657 | (unsigned long long)class); |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7658 | ret = -EINVAL; |
| 7659 | goto out; |
| 7660 | } |
| 7661 | } |
| 7662 | |
| 7663 | ret = tcam_flush(np, idx); |
| 7664 | if (ret) |
| 7665 | goto out; |
| 7666 | |
| 7667 | /* invalidate the entry */ |
| 7668 | tp->valid = 0; |
| 7669 | np->clas.tcam_valid_entries--; |
| 7670 | out: |
| 7671 | niu_unlock_parent(np, flags); |
| 7672 | |
| 7673 | return ret; |
| 7674 | } |
| 7675 | |
| 7676 | static int niu_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd) |
| 7677 | { |
| 7678 | struct niu *np = netdev_priv(dev); |
| 7679 | int ret = 0; |
| 7680 | |
| 7681 | switch (cmd->cmd) { |
| 7682 | case ETHTOOL_SRXFH: |
| 7683 | ret = niu_set_hash_opts(np, cmd); |
| 7684 | break; |
| 7685 | case ETHTOOL_SRXCLSRLINS: |
| 7686 | ret = niu_add_ethtool_tcam_entry(np, cmd); |
| 7687 | break; |
| 7688 | case ETHTOOL_SRXCLSRLDEL: |
| 7689 | ret = niu_del_ethtool_tcam_entry(np, cmd->fs.location); |
| 7690 | break; |
| 7691 | default: |
| 7692 | ret = -EINVAL; |
| 7693 | break; |
| 7694 | } |
| 7695 | |
| 7696 | return ret; |
| 7697 | } |
| 7698 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 7699 | static const struct { |
| 7700 | const char string[ETH_GSTRING_LEN]; |
| 7701 | } niu_xmac_stat_keys[] = { |
| 7702 | { "tx_frames" }, |
| 7703 | { "tx_bytes" }, |
| 7704 | { "tx_fifo_errors" }, |
| 7705 | { "tx_overflow_errors" }, |
| 7706 | { "tx_max_pkt_size_errors" }, |
| 7707 | { "tx_underflow_errors" }, |
| 7708 | { "rx_local_faults" }, |
| 7709 | { "rx_remote_faults" }, |
| 7710 | { "rx_link_faults" }, |
| 7711 | { "rx_align_errors" }, |
| 7712 | { "rx_frags" }, |
| 7713 | { "rx_mcasts" }, |
| 7714 | { "rx_bcasts" }, |
| 7715 | { "rx_hist_cnt1" }, |
| 7716 | { "rx_hist_cnt2" }, |
| 7717 | { "rx_hist_cnt3" }, |
| 7718 | { "rx_hist_cnt4" }, |
| 7719 | { "rx_hist_cnt5" }, |
| 7720 | { "rx_hist_cnt6" }, |
| 7721 | { "rx_hist_cnt7" }, |
| 7722 | { "rx_octets" }, |
| 7723 | { "rx_code_violations" }, |
| 7724 | { "rx_len_errors" }, |
| 7725 | { "rx_crc_errors" }, |
| 7726 | { "rx_underflows" }, |
| 7727 | { "rx_overflows" }, |
| 7728 | { "pause_off_state" }, |
| 7729 | { "pause_on_state" }, |
| 7730 | { "pause_received" }, |
| 7731 | }; |
| 7732 | |
| 7733 | #define NUM_XMAC_STAT_KEYS ARRAY_SIZE(niu_xmac_stat_keys) |
| 7734 | |
| 7735 | static const struct { |
| 7736 | const char string[ETH_GSTRING_LEN]; |
| 7737 | } niu_bmac_stat_keys[] = { |
| 7738 | { "tx_underflow_errors" }, |
| 7739 | { "tx_max_pkt_size_errors" }, |
| 7740 | { "tx_bytes" }, |
| 7741 | { "tx_frames" }, |
| 7742 | { "rx_overflows" }, |
| 7743 | { "rx_frames" }, |
| 7744 | { "rx_align_errors" }, |
| 7745 | { "rx_crc_errors" }, |
| 7746 | { "rx_len_errors" }, |
| 7747 | { "pause_off_state" }, |
| 7748 | { "pause_on_state" }, |
| 7749 | { "pause_received" }, |
| 7750 | }; |
| 7751 | |
| 7752 | #define NUM_BMAC_STAT_KEYS ARRAY_SIZE(niu_bmac_stat_keys) |
| 7753 | |
| 7754 | static const struct { |
| 7755 | const char string[ETH_GSTRING_LEN]; |
| 7756 | } niu_rxchan_stat_keys[] = { |
| 7757 | { "rx_channel" }, |
| 7758 | { "rx_packets" }, |
| 7759 | { "rx_bytes" }, |
| 7760 | { "rx_dropped" }, |
| 7761 | { "rx_errors" }, |
| 7762 | }; |
| 7763 | |
| 7764 | #define NUM_RXCHAN_STAT_KEYS ARRAY_SIZE(niu_rxchan_stat_keys) |
| 7765 | |
| 7766 | static const struct { |
| 7767 | const char string[ETH_GSTRING_LEN]; |
| 7768 | } niu_txchan_stat_keys[] = { |
| 7769 | { "tx_channel" }, |
| 7770 | { "tx_packets" }, |
| 7771 | { "tx_bytes" }, |
| 7772 | { "tx_errors" }, |
| 7773 | }; |
| 7774 | |
| 7775 | #define NUM_TXCHAN_STAT_KEYS ARRAY_SIZE(niu_txchan_stat_keys) |
| 7776 | |
| 7777 | static void niu_get_strings(struct net_device *dev, u32 stringset, u8 *data) |
| 7778 | { |
| 7779 | struct niu *np = netdev_priv(dev); |
| 7780 | int i; |
| 7781 | |
| 7782 | if (stringset != ETH_SS_STATS) |
| 7783 | return; |
| 7784 | |
| 7785 | if (np->flags & NIU_FLAGS_XMAC) { |
| 7786 | memcpy(data, niu_xmac_stat_keys, |
| 7787 | sizeof(niu_xmac_stat_keys)); |
| 7788 | data += sizeof(niu_xmac_stat_keys); |
| 7789 | } else { |
| 7790 | memcpy(data, niu_bmac_stat_keys, |
| 7791 | sizeof(niu_bmac_stat_keys)); |
| 7792 | data += sizeof(niu_bmac_stat_keys); |
| 7793 | } |
| 7794 | for (i = 0; i < np->num_rx_rings; i++) { |
| 7795 | memcpy(data, niu_rxchan_stat_keys, |
| 7796 | sizeof(niu_rxchan_stat_keys)); |
| 7797 | data += sizeof(niu_rxchan_stat_keys); |
| 7798 | } |
| 7799 | for (i = 0; i < np->num_tx_rings; i++) { |
| 7800 | memcpy(data, niu_txchan_stat_keys, |
| 7801 | sizeof(niu_txchan_stat_keys)); |
| 7802 | data += sizeof(niu_txchan_stat_keys); |
| 7803 | } |
| 7804 | } |
| 7805 | |
Ben Hutchings | 15f0a39 | 2009-10-01 11:58:24 +0000 | [diff] [blame] | 7806 | static int niu_get_sset_count(struct net_device *dev, int stringset) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 7807 | { |
| 7808 | struct niu *np = netdev_priv(dev); |
| 7809 | |
Ben Hutchings | 15f0a39 | 2009-10-01 11:58:24 +0000 | [diff] [blame] | 7810 | if (stringset != ETH_SS_STATS) |
| 7811 | return -EINVAL; |
| 7812 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 7813 | return ((np->flags & NIU_FLAGS_XMAC ? |
| 7814 | NUM_XMAC_STAT_KEYS : |
| 7815 | NUM_BMAC_STAT_KEYS) + |
| 7816 | (np->num_rx_rings * NUM_RXCHAN_STAT_KEYS) + |
| 7817 | (np->num_tx_rings * NUM_TXCHAN_STAT_KEYS)); |
| 7818 | } |
| 7819 | |
| 7820 | static void niu_get_ethtool_stats(struct net_device *dev, |
| 7821 | struct ethtool_stats *stats, u64 *data) |
| 7822 | { |
| 7823 | struct niu *np = netdev_priv(dev); |
| 7824 | int i; |
| 7825 | |
| 7826 | niu_sync_mac_stats(np); |
| 7827 | if (np->flags & NIU_FLAGS_XMAC) { |
| 7828 | memcpy(data, &np->mac_stats.xmac, |
| 7829 | sizeof(struct niu_xmac_stats)); |
| 7830 | data += (sizeof(struct niu_xmac_stats) / sizeof(u64)); |
| 7831 | } else { |
| 7832 | memcpy(data, &np->mac_stats.bmac, |
| 7833 | sizeof(struct niu_bmac_stats)); |
| 7834 | data += (sizeof(struct niu_bmac_stats) / sizeof(u64)); |
| 7835 | } |
| 7836 | for (i = 0; i < np->num_rx_rings; i++) { |
| 7837 | struct rx_ring_info *rp = &np->rx_rings[i]; |
| 7838 | |
Jesper Dangaard Brouer | b8a606b | 2008-12-18 19:50:49 -0800 | [diff] [blame] | 7839 | niu_sync_rx_discard_stats(np, rp, 0); |
| 7840 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 7841 | data[0] = rp->rx_channel; |
| 7842 | data[1] = rp->rx_packets; |
| 7843 | data[2] = rp->rx_bytes; |
| 7844 | data[3] = rp->rx_dropped; |
| 7845 | data[4] = rp->rx_errors; |
| 7846 | data += 5; |
| 7847 | } |
| 7848 | for (i = 0; i < np->num_tx_rings; i++) { |
| 7849 | struct tx_ring_info *rp = &np->tx_rings[i]; |
| 7850 | |
| 7851 | data[0] = rp->tx_channel; |
| 7852 | data[1] = rp->tx_packets; |
| 7853 | data[2] = rp->tx_bytes; |
| 7854 | data[3] = rp->tx_errors; |
| 7855 | data += 4; |
| 7856 | } |
| 7857 | } |
| 7858 | |
| 7859 | static u64 niu_led_state_save(struct niu *np) |
| 7860 | { |
| 7861 | if (np->flags & NIU_FLAGS_XMAC) |
| 7862 | return nr64_mac(XMAC_CONFIG); |
| 7863 | else |
| 7864 | return nr64_mac(BMAC_XIF_CONFIG); |
| 7865 | } |
| 7866 | |
| 7867 | static void niu_led_state_restore(struct niu *np, u64 val) |
| 7868 | { |
| 7869 | if (np->flags & NIU_FLAGS_XMAC) |
| 7870 | nw64_mac(XMAC_CONFIG, val); |
| 7871 | else |
| 7872 | nw64_mac(BMAC_XIF_CONFIG, val); |
| 7873 | } |
| 7874 | |
| 7875 | static void niu_force_led(struct niu *np, int on) |
| 7876 | { |
| 7877 | u64 val, reg, bit; |
| 7878 | |
| 7879 | if (np->flags & NIU_FLAGS_XMAC) { |
| 7880 | reg = XMAC_CONFIG; |
| 7881 | bit = XMAC_CONFIG_FORCE_LED_ON; |
| 7882 | } else { |
| 7883 | reg = BMAC_XIF_CONFIG; |
| 7884 | bit = BMAC_XIF_CONFIG_LINK_LED; |
| 7885 | } |
| 7886 | |
| 7887 | val = nr64_mac(reg); |
| 7888 | if (on) |
| 7889 | val |= bit; |
| 7890 | else |
| 7891 | val &= ~bit; |
| 7892 | nw64_mac(reg, val); |
| 7893 | } |
| 7894 | |
| 7895 | static int niu_phys_id(struct net_device *dev, u32 data) |
| 7896 | { |
| 7897 | struct niu *np = netdev_priv(dev); |
| 7898 | u64 orig_led_state; |
| 7899 | int i; |
| 7900 | |
| 7901 | if (!netif_running(dev)) |
| 7902 | return -EAGAIN; |
| 7903 | |
| 7904 | if (data == 0) |
| 7905 | data = 2; |
| 7906 | |
| 7907 | orig_led_state = niu_led_state_save(np); |
| 7908 | for (i = 0; i < (data * 2); i++) { |
| 7909 | int on = ((i % 2) == 0); |
| 7910 | |
| 7911 | niu_force_led(np, on); |
| 7912 | |
| 7913 | if (msleep_interruptible(500)) |
| 7914 | break; |
| 7915 | } |
| 7916 | niu_led_state_restore(np, orig_led_state); |
| 7917 | |
| 7918 | return 0; |
| 7919 | } |
| 7920 | |
David S. Miller | 3cfa856 | 2010-04-22 15:48:17 -0700 | [diff] [blame] | 7921 | static int niu_set_flags(struct net_device *dev, u32 data) |
| 7922 | { |
Ben Hutchings | 1437ce3 | 2010-06-30 02:44:32 +0000 | [diff] [blame] | 7923 | return ethtool_op_set_flags(dev, data, ETH_FLAG_RXHASH); |
David S. Miller | 3cfa856 | 2010-04-22 15:48:17 -0700 | [diff] [blame] | 7924 | } |
| 7925 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 7926 | static const struct ethtool_ops niu_ethtool_ops = { |
| 7927 | .get_drvinfo = niu_get_drvinfo, |
| 7928 | .get_link = ethtool_op_get_link, |
| 7929 | .get_msglevel = niu_get_msglevel, |
| 7930 | .set_msglevel = niu_set_msglevel, |
Constantin Baranov | 38bb045d | 2009-02-18 17:53:20 -0800 | [diff] [blame] | 7931 | .nway_reset = niu_nway_reset, |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 7932 | .get_eeprom_len = niu_get_eeprom_len, |
| 7933 | .get_eeprom = niu_get_eeprom, |
| 7934 | .get_settings = niu_get_settings, |
| 7935 | .set_settings = niu_set_settings, |
| 7936 | .get_strings = niu_get_strings, |
Ben Hutchings | 15f0a39 | 2009-10-01 11:58:24 +0000 | [diff] [blame] | 7937 | .get_sset_count = niu_get_sset_count, |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 7938 | .get_ethtool_stats = niu_get_ethtool_stats, |
| 7939 | .phys_id = niu_phys_id, |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 7940 | .get_rxnfc = niu_get_nfc, |
| 7941 | .set_rxnfc = niu_set_nfc, |
David S. Miller | 3cfa856 | 2010-04-22 15:48:17 -0700 | [diff] [blame] | 7942 | .set_flags = niu_set_flags, |
| 7943 | .get_flags = ethtool_op_get_flags, |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 7944 | }; |
| 7945 | |
| 7946 | static int niu_ldg_assign_ldn(struct niu *np, struct niu_parent *parent, |
| 7947 | int ldg, int ldn) |
| 7948 | { |
| 7949 | if (ldg < NIU_LDG_MIN || ldg > NIU_LDG_MAX) |
| 7950 | return -EINVAL; |
| 7951 | if (ldn < 0 || ldn > LDN_MAX) |
| 7952 | return -EINVAL; |
| 7953 | |
| 7954 | parent->ldg_map[ldn] = ldg; |
| 7955 | |
| 7956 | if (np->parent->plat_type == PLAT_TYPE_NIU) { |
| 7957 | /* On N2 NIU, the ldn-->ldg assignments are setup and fixed by |
| 7958 | * the firmware, and we're not supposed to change them. |
| 7959 | * Validate the mapping, because if it's wrong we probably |
| 7960 | * won't get any interrupts and that's painful to debug. |
| 7961 | */ |
| 7962 | if (nr64(LDG_NUM(ldn)) != ldg) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 7963 | dev_err(np->device, "Port %u, mis-matched LDG assignment for ldn %d, should be %d is %llu\n", |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 7964 | np->port, ldn, ldg, |
| 7965 | (unsigned long long) nr64(LDG_NUM(ldn))); |
| 7966 | return -EINVAL; |
| 7967 | } |
| 7968 | } else |
| 7969 | nw64(LDG_NUM(ldn), ldg); |
| 7970 | |
| 7971 | return 0; |
| 7972 | } |
| 7973 | |
| 7974 | static int niu_set_ldg_timer_res(struct niu *np, int res) |
| 7975 | { |
| 7976 | if (res < 0 || res > LDG_TIMER_RES_VAL) |
| 7977 | return -EINVAL; |
| 7978 | |
| 7979 | |
| 7980 | nw64(LDG_TIMER_RES, res); |
| 7981 | |
| 7982 | return 0; |
| 7983 | } |
| 7984 | |
| 7985 | static int niu_set_ldg_sid(struct niu *np, int ldg, int func, int vector) |
| 7986 | { |
| 7987 | if ((ldg < NIU_LDG_MIN || ldg > NIU_LDG_MAX) || |
| 7988 | (func < 0 || func > 3) || |
| 7989 | (vector < 0 || vector > 0x1f)) |
| 7990 | return -EINVAL; |
| 7991 | |
| 7992 | nw64(SID(ldg), (func << SID_FUNC_SHIFT) | vector); |
| 7993 | |
| 7994 | return 0; |
| 7995 | } |
| 7996 | |
| 7997 | static int __devinit niu_pci_eeprom_read(struct niu *np, u32 addr) |
| 7998 | { |
| 7999 | u64 frame, frame_base = (ESPC_PIO_STAT_READ_START | |
| 8000 | (addr << ESPC_PIO_STAT_ADDR_SHIFT)); |
| 8001 | int limit; |
| 8002 | |
| 8003 | if (addr > (ESPC_PIO_STAT_ADDR >> ESPC_PIO_STAT_ADDR_SHIFT)) |
| 8004 | return -EINVAL; |
| 8005 | |
| 8006 | frame = frame_base; |
| 8007 | nw64(ESPC_PIO_STAT, frame); |
| 8008 | limit = 64; |
| 8009 | do { |
| 8010 | udelay(5); |
| 8011 | frame = nr64(ESPC_PIO_STAT); |
| 8012 | if (frame & ESPC_PIO_STAT_READ_END) |
| 8013 | break; |
| 8014 | } while (limit--); |
| 8015 | if (!(frame & ESPC_PIO_STAT_READ_END)) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8016 | dev_err(np->device, "EEPROM read timeout frame[%llx]\n", |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8017 | (unsigned long long) frame); |
| 8018 | return -ENODEV; |
| 8019 | } |
| 8020 | |
| 8021 | frame = frame_base; |
| 8022 | nw64(ESPC_PIO_STAT, frame); |
| 8023 | limit = 64; |
| 8024 | do { |
| 8025 | udelay(5); |
| 8026 | frame = nr64(ESPC_PIO_STAT); |
| 8027 | if (frame & ESPC_PIO_STAT_READ_END) |
| 8028 | break; |
| 8029 | } while (limit--); |
| 8030 | if (!(frame & ESPC_PIO_STAT_READ_END)) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8031 | dev_err(np->device, "EEPROM read timeout frame[%llx]\n", |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8032 | (unsigned long long) frame); |
| 8033 | return -ENODEV; |
| 8034 | } |
| 8035 | |
| 8036 | frame = nr64(ESPC_PIO_STAT); |
| 8037 | return (frame & ESPC_PIO_STAT_DATA) >> ESPC_PIO_STAT_DATA_SHIFT; |
| 8038 | } |
| 8039 | |
| 8040 | static int __devinit niu_pci_eeprom_read16(struct niu *np, u32 off) |
| 8041 | { |
| 8042 | int err = niu_pci_eeprom_read(np, off); |
| 8043 | u16 val; |
| 8044 | |
| 8045 | if (err < 0) |
| 8046 | return err; |
| 8047 | val = (err << 8); |
| 8048 | err = niu_pci_eeprom_read(np, off + 1); |
| 8049 | if (err < 0) |
| 8050 | return err; |
| 8051 | val |= (err & 0xff); |
| 8052 | |
| 8053 | return val; |
| 8054 | } |
| 8055 | |
| 8056 | static int __devinit niu_pci_eeprom_read16_swp(struct niu *np, u32 off) |
| 8057 | { |
| 8058 | int err = niu_pci_eeprom_read(np, off); |
| 8059 | u16 val; |
| 8060 | |
| 8061 | if (err < 0) |
| 8062 | return err; |
| 8063 | |
| 8064 | val = (err & 0xff); |
| 8065 | err = niu_pci_eeprom_read(np, off + 1); |
| 8066 | if (err < 0) |
| 8067 | return err; |
| 8068 | |
| 8069 | val |= (err & 0xff) << 8; |
| 8070 | |
| 8071 | return val; |
| 8072 | } |
| 8073 | |
| 8074 | static int __devinit niu_pci_vpd_get_propname(struct niu *np, |
| 8075 | u32 off, |
| 8076 | char *namebuf, |
| 8077 | int namebuf_len) |
| 8078 | { |
| 8079 | int i; |
| 8080 | |
| 8081 | for (i = 0; i < namebuf_len; i++) { |
| 8082 | int err = niu_pci_eeprom_read(np, off + i); |
| 8083 | if (err < 0) |
| 8084 | return err; |
| 8085 | *namebuf++ = err; |
| 8086 | if (!err) |
| 8087 | break; |
| 8088 | } |
| 8089 | if (i >= namebuf_len) |
| 8090 | return -EINVAL; |
| 8091 | |
| 8092 | return i + 1; |
| 8093 | } |
| 8094 | |
| 8095 | static void __devinit niu_vpd_parse_version(struct niu *np) |
| 8096 | { |
| 8097 | struct niu_vpd *vpd = &np->vpd; |
| 8098 | int len = strlen(vpd->version) + 1; |
| 8099 | const char *s = vpd->version; |
| 8100 | int i; |
| 8101 | |
| 8102 | for (i = 0; i < len - 5; i++) { |
Joe Perches | 9ea2bda | 2009-11-09 18:05:45 +0000 | [diff] [blame] | 8103 | if (!strncmp(s + i, "FCode ", 6)) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8104 | break; |
| 8105 | } |
| 8106 | if (i >= len - 5) |
| 8107 | return; |
| 8108 | |
| 8109 | s += i + 5; |
| 8110 | sscanf(s, "%d.%d", &vpd->fcode_major, &vpd->fcode_minor); |
| 8111 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8112 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
| 8113 | "VPD_SCAN: FCODE major(%d) minor(%d)\n", |
| 8114 | vpd->fcode_major, vpd->fcode_minor); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8115 | if (vpd->fcode_major > NIU_VPD_MIN_MAJOR || |
| 8116 | (vpd->fcode_major == NIU_VPD_MIN_MAJOR && |
| 8117 | vpd->fcode_minor >= NIU_VPD_MIN_MINOR)) |
| 8118 | np->flags |= NIU_FLAGS_VPD_VALID; |
| 8119 | } |
| 8120 | |
| 8121 | /* ESPC_PIO_EN_ENABLE must be set */ |
| 8122 | static int __devinit niu_pci_vpd_scan_props(struct niu *np, |
| 8123 | u32 start, u32 end) |
| 8124 | { |
| 8125 | unsigned int found_mask = 0; |
| 8126 | #define FOUND_MASK_MODEL 0x00000001 |
| 8127 | #define FOUND_MASK_BMODEL 0x00000002 |
| 8128 | #define FOUND_MASK_VERS 0x00000004 |
| 8129 | #define FOUND_MASK_MAC 0x00000008 |
| 8130 | #define FOUND_MASK_NMAC 0x00000010 |
| 8131 | #define FOUND_MASK_PHY 0x00000020 |
| 8132 | #define FOUND_MASK_ALL 0x0000003f |
| 8133 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8134 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
| 8135 | "VPD_SCAN: start[%x] end[%x]\n", start, end); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8136 | while (start < end) { |
| 8137 | int len, err, instance, type, prop_len; |
| 8138 | char namebuf[64]; |
| 8139 | u8 *prop_buf; |
| 8140 | int max_len; |
| 8141 | |
| 8142 | if (found_mask == FOUND_MASK_ALL) { |
| 8143 | niu_vpd_parse_version(np); |
| 8144 | return 1; |
| 8145 | } |
| 8146 | |
| 8147 | err = niu_pci_eeprom_read(np, start + 2); |
| 8148 | if (err < 0) |
| 8149 | return err; |
| 8150 | len = err; |
| 8151 | start += 3; |
| 8152 | |
| 8153 | instance = niu_pci_eeprom_read(np, start); |
| 8154 | type = niu_pci_eeprom_read(np, start + 3); |
| 8155 | prop_len = niu_pci_eeprom_read(np, start + 4); |
| 8156 | err = niu_pci_vpd_get_propname(np, start + 5, namebuf, 64); |
| 8157 | if (err < 0) |
| 8158 | return err; |
| 8159 | |
| 8160 | prop_buf = NULL; |
| 8161 | max_len = 0; |
| 8162 | if (!strcmp(namebuf, "model")) { |
| 8163 | prop_buf = np->vpd.model; |
| 8164 | max_len = NIU_VPD_MODEL_MAX; |
| 8165 | found_mask |= FOUND_MASK_MODEL; |
| 8166 | } else if (!strcmp(namebuf, "board-model")) { |
| 8167 | prop_buf = np->vpd.board_model; |
| 8168 | max_len = NIU_VPD_BD_MODEL_MAX; |
| 8169 | found_mask |= FOUND_MASK_BMODEL; |
| 8170 | } else if (!strcmp(namebuf, "version")) { |
| 8171 | prop_buf = np->vpd.version; |
| 8172 | max_len = NIU_VPD_VERSION_MAX; |
| 8173 | found_mask |= FOUND_MASK_VERS; |
| 8174 | } else if (!strcmp(namebuf, "local-mac-address")) { |
| 8175 | prop_buf = np->vpd.local_mac; |
| 8176 | max_len = ETH_ALEN; |
| 8177 | found_mask |= FOUND_MASK_MAC; |
| 8178 | } else if (!strcmp(namebuf, "num-mac-addresses")) { |
| 8179 | prop_buf = &np->vpd.mac_num; |
| 8180 | max_len = 1; |
| 8181 | found_mask |= FOUND_MASK_NMAC; |
| 8182 | } else if (!strcmp(namebuf, "phy-type")) { |
| 8183 | prop_buf = np->vpd.phy_type; |
| 8184 | max_len = NIU_VPD_PHY_TYPE_MAX; |
| 8185 | found_mask |= FOUND_MASK_PHY; |
| 8186 | } |
| 8187 | |
| 8188 | if (max_len && prop_len > max_len) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8189 | dev_err(np->device, "Property '%s' length (%d) is too long\n", namebuf, prop_len); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8190 | return -EINVAL; |
| 8191 | } |
| 8192 | |
| 8193 | if (prop_buf) { |
| 8194 | u32 off = start + 5 + err; |
| 8195 | int i; |
| 8196 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8197 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
| 8198 | "VPD_SCAN: Reading in property [%s] len[%d]\n", |
| 8199 | namebuf, prop_len); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8200 | for (i = 0; i < prop_len; i++) |
| 8201 | *prop_buf++ = niu_pci_eeprom_read(np, off + i); |
| 8202 | } |
| 8203 | |
| 8204 | start += len; |
| 8205 | } |
| 8206 | |
| 8207 | return 0; |
| 8208 | } |
| 8209 | |
| 8210 | /* ESPC_PIO_EN_ENABLE must be set */ |
| 8211 | static void __devinit niu_pci_vpd_fetch(struct niu *np, u32 start) |
| 8212 | { |
| 8213 | u32 offset; |
| 8214 | int err; |
| 8215 | |
| 8216 | err = niu_pci_eeprom_read16_swp(np, start + 1); |
| 8217 | if (err < 0) |
| 8218 | return; |
| 8219 | |
| 8220 | offset = err + 3; |
| 8221 | |
| 8222 | while (start + offset < ESPC_EEPROM_SIZE) { |
| 8223 | u32 here = start + offset; |
| 8224 | u32 end; |
| 8225 | |
| 8226 | err = niu_pci_eeprom_read(np, here); |
| 8227 | if (err != 0x90) |
| 8228 | return; |
| 8229 | |
| 8230 | err = niu_pci_eeprom_read16_swp(np, here + 1); |
| 8231 | if (err < 0) |
| 8232 | return; |
| 8233 | |
| 8234 | here = start + offset + 3; |
| 8235 | end = start + offset + err; |
| 8236 | |
| 8237 | offset += err; |
| 8238 | |
| 8239 | err = niu_pci_vpd_scan_props(np, here, end); |
| 8240 | if (err < 0 || err == 1) |
| 8241 | return; |
| 8242 | } |
| 8243 | } |
| 8244 | |
| 8245 | /* ESPC_PIO_EN_ENABLE must be set */ |
| 8246 | static u32 __devinit niu_pci_vpd_offset(struct niu *np) |
| 8247 | { |
| 8248 | u32 start = 0, end = ESPC_EEPROM_SIZE, ret; |
| 8249 | int err; |
| 8250 | |
| 8251 | while (start < end) { |
| 8252 | ret = start; |
| 8253 | |
| 8254 | /* ROM header signature? */ |
| 8255 | err = niu_pci_eeprom_read16(np, start + 0); |
| 8256 | if (err != 0x55aa) |
| 8257 | return 0; |
| 8258 | |
| 8259 | /* Apply offset to PCI data structure. */ |
| 8260 | err = niu_pci_eeprom_read16(np, start + 23); |
| 8261 | if (err < 0) |
| 8262 | return 0; |
| 8263 | start += err; |
| 8264 | |
| 8265 | /* Check for "PCIR" signature. */ |
| 8266 | err = niu_pci_eeprom_read16(np, start + 0); |
| 8267 | if (err != 0x5043) |
| 8268 | return 0; |
| 8269 | err = niu_pci_eeprom_read16(np, start + 2); |
| 8270 | if (err != 0x4952) |
| 8271 | return 0; |
| 8272 | |
| 8273 | /* Check for OBP image type. */ |
| 8274 | err = niu_pci_eeprom_read(np, start + 20); |
| 8275 | if (err < 0) |
| 8276 | return 0; |
| 8277 | if (err != 0x01) { |
| 8278 | err = niu_pci_eeprom_read(np, ret + 2); |
| 8279 | if (err < 0) |
| 8280 | return 0; |
| 8281 | |
| 8282 | start = ret + (err * 512); |
| 8283 | continue; |
| 8284 | } |
| 8285 | |
| 8286 | err = niu_pci_eeprom_read16_swp(np, start + 8); |
| 8287 | if (err < 0) |
| 8288 | return err; |
| 8289 | ret += err; |
| 8290 | |
| 8291 | err = niu_pci_eeprom_read(np, ret + 0); |
| 8292 | if (err != 0x82) |
| 8293 | return 0; |
| 8294 | |
| 8295 | return ret; |
| 8296 | } |
| 8297 | |
| 8298 | return 0; |
| 8299 | } |
| 8300 | |
| 8301 | static int __devinit niu_phy_type_prop_decode(struct niu *np, |
| 8302 | const char *phy_prop) |
| 8303 | { |
| 8304 | if (!strcmp(phy_prop, "mif")) { |
| 8305 | /* 1G copper, MII */ |
| 8306 | np->flags &= ~(NIU_FLAGS_FIBER | |
| 8307 | NIU_FLAGS_10G); |
| 8308 | np->mac_xcvr = MAC_XCVR_MII; |
| 8309 | } else if (!strcmp(phy_prop, "xgf")) { |
| 8310 | /* 10G fiber, XPCS */ |
| 8311 | np->flags |= (NIU_FLAGS_10G | |
| 8312 | NIU_FLAGS_FIBER); |
| 8313 | np->mac_xcvr = MAC_XCVR_XPCS; |
| 8314 | } else if (!strcmp(phy_prop, "pcs")) { |
| 8315 | /* 1G fiber, PCS */ |
| 8316 | np->flags &= ~NIU_FLAGS_10G; |
| 8317 | np->flags |= NIU_FLAGS_FIBER; |
| 8318 | np->mac_xcvr = MAC_XCVR_PCS; |
| 8319 | } else if (!strcmp(phy_prop, "xgc")) { |
| 8320 | /* 10G copper, XPCS */ |
| 8321 | np->flags |= NIU_FLAGS_10G; |
| 8322 | np->flags &= ~NIU_FLAGS_FIBER; |
| 8323 | np->mac_xcvr = MAC_XCVR_XPCS; |
Santwona Behera | e3e081e | 2008-11-14 14:44:08 -0800 | [diff] [blame] | 8324 | } else if (!strcmp(phy_prop, "xgsd") || !strcmp(phy_prop, "gsd")) { |
| 8325 | /* 10G Serdes or 1G Serdes, default to 10G */ |
| 8326 | np->flags |= NIU_FLAGS_10G; |
| 8327 | np->flags &= ~NIU_FLAGS_FIBER; |
| 8328 | np->flags |= NIU_FLAGS_XCVR_SERDES; |
| 8329 | np->mac_xcvr = MAC_XCVR_XPCS; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8330 | } else { |
| 8331 | return -EINVAL; |
| 8332 | } |
| 8333 | return 0; |
| 8334 | } |
| 8335 | |
Matheos Worku | 7f7c407 | 2008-04-24 21:02:37 -0700 | [diff] [blame] | 8336 | static int niu_pci_vpd_get_nports(struct niu *np) |
| 8337 | { |
| 8338 | int ports = 0; |
| 8339 | |
Matheos Worku | f9af857 | 2008-05-12 03:10:59 -0700 | [diff] [blame] | 8340 | if ((!strcmp(np->vpd.model, NIU_QGC_LP_MDL_STR)) || |
| 8341 | (!strcmp(np->vpd.model, NIU_QGC_PEM_MDL_STR)) || |
| 8342 | (!strcmp(np->vpd.model, NIU_MARAMBA_MDL_STR)) || |
| 8343 | (!strcmp(np->vpd.model, NIU_KIMI_MDL_STR)) || |
| 8344 | (!strcmp(np->vpd.model, NIU_ALONSO_MDL_STR))) { |
Matheos Worku | 7f7c407 | 2008-04-24 21:02:37 -0700 | [diff] [blame] | 8345 | ports = 4; |
Matheos Worku | f9af857 | 2008-05-12 03:10:59 -0700 | [diff] [blame] | 8346 | } else if ((!strcmp(np->vpd.model, NIU_2XGF_LP_MDL_STR)) || |
| 8347 | (!strcmp(np->vpd.model, NIU_2XGF_PEM_MDL_STR)) || |
| 8348 | (!strcmp(np->vpd.model, NIU_FOXXY_MDL_STR)) || |
| 8349 | (!strcmp(np->vpd.model, NIU_2XGF_MRVL_MDL_STR))) { |
Matheos Worku | 7f7c407 | 2008-04-24 21:02:37 -0700 | [diff] [blame] | 8350 | ports = 2; |
| 8351 | } |
| 8352 | |
| 8353 | return ports; |
| 8354 | } |
| 8355 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8356 | static void __devinit niu_pci_vpd_validate(struct niu *np) |
| 8357 | { |
| 8358 | struct net_device *dev = np->dev; |
| 8359 | struct niu_vpd *vpd = &np->vpd; |
| 8360 | u8 val8; |
| 8361 | |
| 8362 | if (!is_valid_ether_addr(&vpd->local_mac[0])) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8363 | dev_err(np->device, "VPD MAC invalid, falling back to SPROM\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8364 | |
| 8365 | np->flags &= ~NIU_FLAGS_VPD_VALID; |
| 8366 | return; |
| 8367 | } |
| 8368 | |
Matheos Worku | f9af857 | 2008-05-12 03:10:59 -0700 | [diff] [blame] | 8369 | if (!strcmp(np->vpd.model, NIU_ALONSO_MDL_STR) || |
| 8370 | !strcmp(np->vpd.model, NIU_KIMI_MDL_STR)) { |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 8371 | np->flags |= NIU_FLAGS_10G; |
| 8372 | np->flags &= ~NIU_FLAGS_FIBER; |
| 8373 | np->flags |= NIU_FLAGS_XCVR_SERDES; |
| 8374 | np->mac_xcvr = MAC_XCVR_PCS; |
| 8375 | if (np->port > 1) { |
| 8376 | np->flags |= NIU_FLAGS_FIBER; |
| 8377 | np->flags &= ~NIU_FLAGS_10G; |
| 8378 | } |
| 8379 | if (np->flags & NIU_FLAGS_10G) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8380 | np->mac_xcvr = MAC_XCVR_XPCS; |
Matheos Worku | f9af857 | 2008-05-12 03:10:59 -0700 | [diff] [blame] | 8381 | } else if (!strcmp(np->vpd.model, NIU_FOXXY_MDL_STR)) { |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 8382 | np->flags |= (NIU_FLAGS_10G | NIU_FLAGS_FIBER | |
| 8383 | NIU_FLAGS_HOTPLUG_PHY); |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 8384 | } else if (niu_phy_type_prop_decode(np, np->vpd.phy_type)) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8385 | dev_err(np->device, "Illegal phy string [%s]\n", |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8386 | np->vpd.phy_type); |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8387 | dev_err(np->device, "Falling back to SPROM\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8388 | np->flags &= ~NIU_FLAGS_VPD_VALID; |
| 8389 | return; |
| 8390 | } |
| 8391 | |
| 8392 | memcpy(dev->perm_addr, vpd->local_mac, ETH_ALEN); |
| 8393 | |
| 8394 | val8 = dev->perm_addr[5]; |
| 8395 | dev->perm_addr[5] += np->port; |
| 8396 | if (dev->perm_addr[5] < val8) |
| 8397 | dev->perm_addr[4]++; |
| 8398 | |
| 8399 | memcpy(dev->dev_addr, dev->perm_addr, dev->addr_len); |
| 8400 | } |
| 8401 | |
| 8402 | static int __devinit niu_pci_probe_sprom(struct niu *np) |
| 8403 | { |
| 8404 | struct net_device *dev = np->dev; |
| 8405 | int len, i; |
| 8406 | u64 val, sum; |
| 8407 | u8 val8; |
| 8408 | |
| 8409 | val = (nr64(ESPC_VER_IMGSZ) & ESPC_VER_IMGSZ_IMGSZ); |
| 8410 | val >>= ESPC_VER_IMGSZ_IMGSZ_SHIFT; |
| 8411 | len = val / 4; |
| 8412 | |
| 8413 | np->eeprom_len = len; |
| 8414 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8415 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
| 8416 | "SPROM: Image size %llu\n", (unsigned long long)val); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8417 | |
| 8418 | sum = 0; |
| 8419 | for (i = 0; i < len; i++) { |
| 8420 | val = nr64(ESPC_NCR(i)); |
| 8421 | sum += (val >> 0) & 0xff; |
| 8422 | sum += (val >> 8) & 0xff; |
| 8423 | sum += (val >> 16) & 0xff; |
| 8424 | sum += (val >> 24) & 0xff; |
| 8425 | } |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8426 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
| 8427 | "SPROM: Checksum %x\n", (int)(sum & 0xff)); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8428 | if ((sum & 0xff) != 0xab) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8429 | dev_err(np->device, "Bad SPROM checksum (%x, should be 0xab)\n", (int)(sum & 0xff)); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8430 | return -EINVAL; |
| 8431 | } |
| 8432 | |
| 8433 | val = nr64(ESPC_PHY_TYPE); |
| 8434 | switch (np->port) { |
| 8435 | case 0: |
Al Viro | a9d4119 | 2007-10-15 01:42:31 -0700 | [diff] [blame] | 8436 | val8 = (val & ESPC_PHY_TYPE_PORT0) >> |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8437 | ESPC_PHY_TYPE_PORT0_SHIFT; |
| 8438 | break; |
| 8439 | case 1: |
Al Viro | a9d4119 | 2007-10-15 01:42:31 -0700 | [diff] [blame] | 8440 | val8 = (val & ESPC_PHY_TYPE_PORT1) >> |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8441 | ESPC_PHY_TYPE_PORT1_SHIFT; |
| 8442 | break; |
| 8443 | case 2: |
Al Viro | a9d4119 | 2007-10-15 01:42:31 -0700 | [diff] [blame] | 8444 | val8 = (val & ESPC_PHY_TYPE_PORT2) >> |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8445 | ESPC_PHY_TYPE_PORT2_SHIFT; |
| 8446 | break; |
| 8447 | case 3: |
Al Viro | a9d4119 | 2007-10-15 01:42:31 -0700 | [diff] [blame] | 8448 | val8 = (val & ESPC_PHY_TYPE_PORT3) >> |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8449 | ESPC_PHY_TYPE_PORT3_SHIFT; |
| 8450 | break; |
| 8451 | default: |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8452 | dev_err(np->device, "Bogus port number %u\n", |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8453 | np->port); |
| 8454 | return -EINVAL; |
| 8455 | } |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8456 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
| 8457 | "SPROM: PHY type %x\n", val8); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8458 | |
Al Viro | a9d4119 | 2007-10-15 01:42:31 -0700 | [diff] [blame] | 8459 | switch (val8) { |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8460 | case ESPC_PHY_TYPE_1G_COPPER: |
| 8461 | /* 1G copper, MII */ |
| 8462 | np->flags &= ~(NIU_FLAGS_FIBER | |
| 8463 | NIU_FLAGS_10G); |
| 8464 | np->mac_xcvr = MAC_XCVR_MII; |
| 8465 | break; |
| 8466 | |
| 8467 | case ESPC_PHY_TYPE_1G_FIBER: |
| 8468 | /* 1G fiber, PCS */ |
| 8469 | np->flags &= ~NIU_FLAGS_10G; |
| 8470 | np->flags |= NIU_FLAGS_FIBER; |
| 8471 | np->mac_xcvr = MAC_XCVR_PCS; |
| 8472 | break; |
| 8473 | |
| 8474 | case ESPC_PHY_TYPE_10G_COPPER: |
| 8475 | /* 10G copper, XPCS */ |
| 8476 | np->flags |= NIU_FLAGS_10G; |
| 8477 | np->flags &= ~NIU_FLAGS_FIBER; |
| 8478 | np->mac_xcvr = MAC_XCVR_XPCS; |
| 8479 | break; |
| 8480 | |
| 8481 | case ESPC_PHY_TYPE_10G_FIBER: |
| 8482 | /* 10G fiber, XPCS */ |
| 8483 | np->flags |= (NIU_FLAGS_10G | |
| 8484 | NIU_FLAGS_FIBER); |
| 8485 | np->mac_xcvr = MAC_XCVR_XPCS; |
| 8486 | break; |
| 8487 | |
| 8488 | default: |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8489 | dev_err(np->device, "Bogus SPROM phy type %u\n", val8); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8490 | return -EINVAL; |
| 8491 | } |
| 8492 | |
| 8493 | val = nr64(ESPC_MAC_ADDR0); |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8494 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
| 8495 | "SPROM: MAC_ADDR0[%08llx]\n", (unsigned long long)val); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8496 | dev->perm_addr[0] = (val >> 0) & 0xff; |
| 8497 | dev->perm_addr[1] = (val >> 8) & 0xff; |
| 8498 | dev->perm_addr[2] = (val >> 16) & 0xff; |
| 8499 | dev->perm_addr[3] = (val >> 24) & 0xff; |
| 8500 | |
| 8501 | val = nr64(ESPC_MAC_ADDR1); |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8502 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
| 8503 | "SPROM: MAC_ADDR1[%08llx]\n", (unsigned long long)val); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8504 | dev->perm_addr[4] = (val >> 0) & 0xff; |
| 8505 | dev->perm_addr[5] = (val >> 8) & 0xff; |
| 8506 | |
| 8507 | if (!is_valid_ether_addr(&dev->perm_addr[0])) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8508 | dev_err(np->device, "SPROM MAC address invalid [ %pM ]\n", |
| 8509 | dev->perm_addr); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8510 | return -EINVAL; |
| 8511 | } |
| 8512 | |
| 8513 | val8 = dev->perm_addr[5]; |
| 8514 | dev->perm_addr[5] += np->port; |
| 8515 | if (dev->perm_addr[5] < val8) |
| 8516 | dev->perm_addr[4]++; |
| 8517 | |
| 8518 | memcpy(dev->dev_addr, dev->perm_addr, dev->addr_len); |
| 8519 | |
| 8520 | val = nr64(ESPC_MOD_STR_LEN); |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8521 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
| 8522 | "SPROM: MOD_STR_LEN[%llu]\n", (unsigned long long)val); |
David S. Miller | e6a5fdf | 2007-10-15 01:36:24 -0700 | [diff] [blame] | 8523 | if (val >= 8 * 4) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8524 | return -EINVAL; |
| 8525 | |
| 8526 | for (i = 0; i < val; i += 4) { |
| 8527 | u64 tmp = nr64(ESPC_NCR(5 + (i / 4))); |
| 8528 | |
| 8529 | np->vpd.model[i + 3] = (tmp >> 0) & 0xff; |
| 8530 | np->vpd.model[i + 2] = (tmp >> 8) & 0xff; |
| 8531 | np->vpd.model[i + 1] = (tmp >> 16) & 0xff; |
| 8532 | np->vpd.model[i + 0] = (tmp >> 24) & 0xff; |
| 8533 | } |
| 8534 | np->vpd.model[val] = '\0'; |
| 8535 | |
| 8536 | val = nr64(ESPC_BD_MOD_STR_LEN); |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8537 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
| 8538 | "SPROM: BD_MOD_STR_LEN[%llu]\n", (unsigned long long)val); |
David S. Miller | e6a5fdf | 2007-10-15 01:36:24 -0700 | [diff] [blame] | 8539 | if (val >= 4 * 4) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8540 | return -EINVAL; |
| 8541 | |
| 8542 | for (i = 0; i < val; i += 4) { |
| 8543 | u64 tmp = nr64(ESPC_NCR(14 + (i / 4))); |
| 8544 | |
| 8545 | np->vpd.board_model[i + 3] = (tmp >> 0) & 0xff; |
| 8546 | np->vpd.board_model[i + 2] = (tmp >> 8) & 0xff; |
| 8547 | np->vpd.board_model[i + 1] = (tmp >> 16) & 0xff; |
| 8548 | np->vpd.board_model[i + 0] = (tmp >> 24) & 0xff; |
| 8549 | } |
| 8550 | np->vpd.board_model[val] = '\0'; |
| 8551 | |
| 8552 | np->vpd.mac_num = |
| 8553 | nr64(ESPC_NUM_PORTS_MACS) & ESPC_NUM_PORTS_MACS_VAL; |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8554 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
| 8555 | "SPROM: NUM_PORTS_MACS[%d]\n", np->vpd.mac_num); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8556 | |
| 8557 | return 0; |
| 8558 | } |
| 8559 | |
| 8560 | static int __devinit niu_get_and_validate_port(struct niu *np) |
| 8561 | { |
| 8562 | struct niu_parent *parent = np->parent; |
| 8563 | |
| 8564 | if (np->port <= 1) |
| 8565 | np->flags |= NIU_FLAGS_XMAC; |
| 8566 | |
| 8567 | if (!parent->num_ports) { |
| 8568 | if (parent->plat_type == PLAT_TYPE_NIU) { |
| 8569 | parent->num_ports = 2; |
| 8570 | } else { |
Matheos Worku | 7f7c407 | 2008-04-24 21:02:37 -0700 | [diff] [blame] | 8571 | parent->num_ports = niu_pci_vpd_get_nports(np); |
| 8572 | if (!parent->num_ports) { |
| 8573 | /* Fall back to SPROM as last resort. |
| 8574 | * This will fail on most cards. |
| 8575 | */ |
| 8576 | parent->num_ports = nr64(ESPC_NUM_PORTS_MACS) & |
| 8577 | ESPC_NUM_PORTS_MACS_VAL; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8578 | |
David S. Miller | be0c007 | 2008-05-04 01:34:31 -0700 | [diff] [blame] | 8579 | /* All of the current probing methods fail on |
| 8580 | * Maramba on-board parts. |
| 8581 | */ |
Matheos Worku | 7f7c407 | 2008-04-24 21:02:37 -0700 | [diff] [blame] | 8582 | if (!parent->num_ports) |
David S. Miller | be0c007 | 2008-05-04 01:34:31 -0700 | [diff] [blame] | 8583 | parent->num_ports = 4; |
Matheos Worku | 7f7c407 | 2008-04-24 21:02:37 -0700 | [diff] [blame] | 8584 | } |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8585 | } |
| 8586 | } |
| 8587 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8588 | if (np->port >= parent->num_ports) |
| 8589 | return -ENODEV; |
| 8590 | |
| 8591 | return 0; |
| 8592 | } |
| 8593 | |
| 8594 | static int __devinit phy_record(struct niu_parent *parent, |
| 8595 | struct phy_probe_info *p, |
| 8596 | int dev_id_1, int dev_id_2, u8 phy_port, |
| 8597 | int type) |
| 8598 | { |
| 8599 | u32 id = (dev_id_1 << 16) | dev_id_2; |
| 8600 | u8 idx; |
| 8601 | |
| 8602 | if (dev_id_1 < 0 || dev_id_2 < 0) |
| 8603 | return 0; |
| 8604 | if (type == PHY_TYPE_PMA_PMD || type == PHY_TYPE_PCS) { |
Mirko Lindner | b0de8e4 | 2008-01-10 02:12:44 -0800 | [diff] [blame] | 8605 | if (((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM8704) && |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 8606 | ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_MRVL88X2011) && |
| 8607 | ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM8706)) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8608 | return 0; |
| 8609 | } else { |
| 8610 | if ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM5464R) |
| 8611 | return 0; |
| 8612 | } |
| 8613 | |
| 8614 | pr_info("niu%d: Found PHY %08x type %s at phy_port %u\n", |
| 8615 | parent->index, id, |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8616 | type == PHY_TYPE_PMA_PMD ? "PMA/PMD" : |
| 8617 | type == PHY_TYPE_PCS ? "PCS" : "MII", |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8618 | phy_port); |
| 8619 | |
| 8620 | if (p->cur[type] >= NIU_MAX_PORTS) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8621 | pr_err("Too many PHY ports\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8622 | return -EINVAL; |
| 8623 | } |
| 8624 | idx = p->cur[type]; |
| 8625 | p->phy_id[type][idx] = id; |
| 8626 | p->phy_port[type][idx] = phy_port; |
| 8627 | p->cur[type] = idx + 1; |
| 8628 | return 0; |
| 8629 | } |
| 8630 | |
| 8631 | static int __devinit port_has_10g(struct phy_probe_info *p, int port) |
| 8632 | { |
| 8633 | int i; |
| 8634 | |
| 8635 | for (i = 0; i < p->cur[PHY_TYPE_PMA_PMD]; i++) { |
| 8636 | if (p->phy_port[PHY_TYPE_PMA_PMD][i] == port) |
| 8637 | return 1; |
| 8638 | } |
| 8639 | for (i = 0; i < p->cur[PHY_TYPE_PCS]; i++) { |
| 8640 | if (p->phy_port[PHY_TYPE_PCS][i] == port) |
| 8641 | return 1; |
| 8642 | } |
| 8643 | |
| 8644 | return 0; |
| 8645 | } |
| 8646 | |
| 8647 | static int __devinit count_10g_ports(struct phy_probe_info *p, int *lowest) |
| 8648 | { |
| 8649 | int port, cnt; |
| 8650 | |
| 8651 | cnt = 0; |
| 8652 | *lowest = 32; |
| 8653 | for (port = 8; port < 32; port++) { |
| 8654 | if (port_has_10g(p, port)) { |
| 8655 | if (!cnt) |
| 8656 | *lowest = port; |
| 8657 | cnt++; |
| 8658 | } |
| 8659 | } |
| 8660 | |
| 8661 | return cnt; |
| 8662 | } |
| 8663 | |
| 8664 | static int __devinit count_1g_ports(struct phy_probe_info *p, int *lowest) |
| 8665 | { |
| 8666 | *lowest = 32; |
| 8667 | if (p->cur[PHY_TYPE_MII]) |
| 8668 | *lowest = p->phy_port[PHY_TYPE_MII][0]; |
| 8669 | |
| 8670 | return p->cur[PHY_TYPE_MII]; |
| 8671 | } |
| 8672 | |
| 8673 | static void __devinit niu_n2_divide_channels(struct niu_parent *parent) |
| 8674 | { |
| 8675 | int num_ports = parent->num_ports; |
| 8676 | int i; |
| 8677 | |
| 8678 | for (i = 0; i < num_ports; i++) { |
| 8679 | parent->rxchan_per_port[i] = (16 / num_ports); |
| 8680 | parent->txchan_per_port[i] = (16 / num_ports); |
| 8681 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8682 | pr_info("niu%d: Port %u [%u RX chans] [%u TX chans]\n", |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8683 | parent->index, i, |
| 8684 | parent->rxchan_per_port[i], |
| 8685 | parent->txchan_per_port[i]); |
| 8686 | } |
| 8687 | } |
| 8688 | |
| 8689 | static void __devinit niu_divide_channels(struct niu_parent *parent, |
| 8690 | int num_10g, int num_1g) |
| 8691 | { |
| 8692 | int num_ports = parent->num_ports; |
| 8693 | int rx_chans_per_10g, rx_chans_per_1g; |
| 8694 | int tx_chans_per_10g, tx_chans_per_1g; |
| 8695 | int i, tot_rx, tot_tx; |
| 8696 | |
| 8697 | if (!num_10g || !num_1g) { |
| 8698 | rx_chans_per_10g = rx_chans_per_1g = |
| 8699 | (NIU_NUM_RXCHAN / num_ports); |
| 8700 | tx_chans_per_10g = tx_chans_per_1g = |
| 8701 | (NIU_NUM_TXCHAN / num_ports); |
| 8702 | } else { |
| 8703 | rx_chans_per_1g = NIU_NUM_RXCHAN / 8; |
| 8704 | rx_chans_per_10g = (NIU_NUM_RXCHAN - |
| 8705 | (rx_chans_per_1g * num_1g)) / |
| 8706 | num_10g; |
| 8707 | |
| 8708 | tx_chans_per_1g = NIU_NUM_TXCHAN / 6; |
| 8709 | tx_chans_per_10g = (NIU_NUM_TXCHAN - |
| 8710 | (tx_chans_per_1g * num_1g)) / |
| 8711 | num_10g; |
| 8712 | } |
| 8713 | |
| 8714 | tot_rx = tot_tx = 0; |
| 8715 | for (i = 0; i < num_ports; i++) { |
| 8716 | int type = phy_decode(parent->port_phy, i); |
| 8717 | |
| 8718 | if (type == PORT_TYPE_10G) { |
| 8719 | parent->rxchan_per_port[i] = rx_chans_per_10g; |
| 8720 | parent->txchan_per_port[i] = tx_chans_per_10g; |
| 8721 | } else { |
| 8722 | parent->rxchan_per_port[i] = rx_chans_per_1g; |
| 8723 | parent->txchan_per_port[i] = tx_chans_per_1g; |
| 8724 | } |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8725 | pr_info("niu%d: Port %u [%u RX chans] [%u TX chans]\n", |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8726 | parent->index, i, |
| 8727 | parent->rxchan_per_port[i], |
| 8728 | parent->txchan_per_port[i]); |
| 8729 | tot_rx += parent->rxchan_per_port[i]; |
| 8730 | tot_tx += parent->txchan_per_port[i]; |
| 8731 | } |
| 8732 | |
| 8733 | if (tot_rx > NIU_NUM_RXCHAN) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8734 | pr_err("niu%d: Too many RX channels (%d), resetting to one per port\n", |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8735 | parent->index, tot_rx); |
| 8736 | for (i = 0; i < num_ports; i++) |
| 8737 | parent->rxchan_per_port[i] = 1; |
| 8738 | } |
| 8739 | if (tot_tx > NIU_NUM_TXCHAN) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8740 | pr_err("niu%d: Too many TX channels (%d), resetting to one per port\n", |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8741 | parent->index, tot_tx); |
| 8742 | for (i = 0; i < num_ports; i++) |
| 8743 | parent->txchan_per_port[i] = 1; |
| 8744 | } |
| 8745 | if (tot_rx < NIU_NUM_RXCHAN || tot_tx < NIU_NUM_TXCHAN) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8746 | pr_warning("niu%d: Driver bug, wasted channels, RX[%d] TX[%d]\n", |
| 8747 | parent->index, tot_rx, tot_tx); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8748 | } |
| 8749 | } |
| 8750 | |
| 8751 | static void __devinit niu_divide_rdc_groups(struct niu_parent *parent, |
| 8752 | int num_10g, int num_1g) |
| 8753 | { |
| 8754 | int i, num_ports = parent->num_ports; |
| 8755 | int rdc_group, rdc_groups_per_port; |
| 8756 | int rdc_channel_base; |
| 8757 | |
| 8758 | rdc_group = 0; |
| 8759 | rdc_groups_per_port = NIU_NUM_RDC_TABLES / num_ports; |
| 8760 | |
| 8761 | rdc_channel_base = 0; |
| 8762 | |
| 8763 | for (i = 0; i < num_ports; i++) { |
| 8764 | struct niu_rdc_tables *tp = &parent->rdc_group_cfg[i]; |
| 8765 | int grp, num_channels = parent->rxchan_per_port[i]; |
| 8766 | int this_channel_offset; |
| 8767 | |
| 8768 | tp->first_table_num = rdc_group; |
| 8769 | tp->num_tables = rdc_groups_per_port; |
| 8770 | this_channel_offset = 0; |
| 8771 | for (grp = 0; grp < tp->num_tables; grp++) { |
| 8772 | struct rdc_table *rt = &tp->tables[grp]; |
| 8773 | int slot; |
| 8774 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8775 | pr_info("niu%d: Port %d RDC tbl(%d) [ ", |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8776 | parent->index, i, tp->first_table_num + grp); |
| 8777 | for (slot = 0; slot < NIU_RDC_TABLE_SLOTS; slot++) { |
| 8778 | rt->rxdma_channel[slot] = |
| 8779 | rdc_channel_base + this_channel_offset; |
| 8780 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8781 | pr_cont("%d ", rt->rxdma_channel[slot]); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8782 | |
| 8783 | if (++this_channel_offset == num_channels) |
| 8784 | this_channel_offset = 0; |
| 8785 | } |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8786 | pr_cont("]\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8787 | } |
| 8788 | |
| 8789 | parent->rdc_default[i] = rdc_channel_base; |
| 8790 | |
| 8791 | rdc_channel_base += num_channels; |
| 8792 | rdc_group += rdc_groups_per_port; |
| 8793 | } |
| 8794 | } |
| 8795 | |
| 8796 | static int __devinit fill_phy_probe_info(struct niu *np, |
| 8797 | struct niu_parent *parent, |
| 8798 | struct phy_probe_info *info) |
| 8799 | { |
| 8800 | unsigned long flags; |
| 8801 | int port, err; |
| 8802 | |
| 8803 | memset(info, 0, sizeof(*info)); |
| 8804 | |
| 8805 | /* Port 0 to 7 are reserved for onboard Serdes, probe the rest. */ |
| 8806 | niu_lock_parent(np, flags); |
| 8807 | err = 0; |
| 8808 | for (port = 8; port < 32; port++) { |
| 8809 | int dev_id_1, dev_id_2; |
| 8810 | |
| 8811 | dev_id_1 = mdio_read(np, port, |
| 8812 | NIU_PMA_PMD_DEV_ADDR, MII_PHYSID1); |
| 8813 | dev_id_2 = mdio_read(np, port, |
| 8814 | NIU_PMA_PMD_DEV_ADDR, MII_PHYSID2); |
| 8815 | err = phy_record(parent, info, dev_id_1, dev_id_2, port, |
| 8816 | PHY_TYPE_PMA_PMD); |
| 8817 | if (err) |
| 8818 | break; |
| 8819 | dev_id_1 = mdio_read(np, port, |
| 8820 | NIU_PCS_DEV_ADDR, MII_PHYSID1); |
| 8821 | dev_id_2 = mdio_read(np, port, |
| 8822 | NIU_PCS_DEV_ADDR, MII_PHYSID2); |
| 8823 | err = phy_record(parent, info, dev_id_1, dev_id_2, port, |
| 8824 | PHY_TYPE_PCS); |
| 8825 | if (err) |
| 8826 | break; |
| 8827 | dev_id_1 = mii_read(np, port, MII_PHYSID1); |
| 8828 | dev_id_2 = mii_read(np, port, MII_PHYSID2); |
| 8829 | err = phy_record(parent, info, dev_id_1, dev_id_2, port, |
| 8830 | PHY_TYPE_MII); |
| 8831 | if (err) |
| 8832 | break; |
| 8833 | } |
| 8834 | niu_unlock_parent(np, flags); |
| 8835 | |
| 8836 | return err; |
| 8837 | } |
| 8838 | |
| 8839 | static int __devinit walk_phys(struct niu *np, struct niu_parent *parent) |
| 8840 | { |
| 8841 | struct phy_probe_info *info = &parent->phy_probe_info; |
| 8842 | int lowest_10g, lowest_1g; |
| 8843 | int num_10g, num_1g; |
| 8844 | u32 val; |
| 8845 | int err; |
| 8846 | |
Santwona Behera | e3e081e | 2008-11-14 14:44:08 -0800 | [diff] [blame] | 8847 | num_10g = num_1g = 0; |
| 8848 | |
Matheos Worku | f9af857 | 2008-05-12 03:10:59 -0700 | [diff] [blame] | 8849 | if (!strcmp(np->vpd.model, NIU_ALONSO_MDL_STR) || |
| 8850 | !strcmp(np->vpd.model, NIU_KIMI_MDL_STR)) { |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 8851 | num_10g = 0; |
| 8852 | num_1g = 2; |
| 8853 | parent->plat_type = PLAT_TYPE_ATCA_CP3220; |
| 8854 | parent->num_ports = 4; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8855 | val = (phy_encode(PORT_TYPE_1G, 0) | |
| 8856 | phy_encode(PORT_TYPE_1G, 1) | |
| 8857 | phy_encode(PORT_TYPE_1G, 2) | |
| 8858 | phy_encode(PORT_TYPE_1G, 3)); |
Matheos Worku | f9af857 | 2008-05-12 03:10:59 -0700 | [diff] [blame] | 8859 | } else if (!strcmp(np->vpd.model, NIU_FOXXY_MDL_STR)) { |
Matheos Worku | a5d6ab5 | 2008-04-24 21:09:20 -0700 | [diff] [blame] | 8860 | num_10g = 2; |
| 8861 | num_1g = 0; |
| 8862 | parent->num_ports = 2; |
| 8863 | val = (phy_encode(PORT_TYPE_10G, 0) | |
| 8864 | phy_encode(PORT_TYPE_10G, 1)); |
Santwona Behera | e3e081e | 2008-11-14 14:44:08 -0800 | [diff] [blame] | 8865 | } else if ((np->flags & NIU_FLAGS_XCVR_SERDES) && |
| 8866 | (parent->plat_type == PLAT_TYPE_NIU)) { |
| 8867 | /* this is the Monza case */ |
| 8868 | if (np->flags & NIU_FLAGS_10G) { |
| 8869 | val = (phy_encode(PORT_TYPE_10G, 0) | |
| 8870 | phy_encode(PORT_TYPE_10G, 1)); |
| 8871 | } else { |
| 8872 | val = (phy_encode(PORT_TYPE_1G, 0) | |
| 8873 | phy_encode(PORT_TYPE_1G, 1)); |
| 8874 | } |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 8875 | } else { |
| 8876 | err = fill_phy_probe_info(np, parent, info); |
| 8877 | if (err) |
| 8878 | return err; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8879 | |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 8880 | num_10g = count_10g_ports(info, &lowest_10g); |
| 8881 | num_1g = count_1g_ports(info, &lowest_1g); |
| 8882 | |
| 8883 | switch ((num_10g << 4) | num_1g) { |
| 8884 | case 0x24: |
| 8885 | if (lowest_1g == 10) |
| 8886 | parent->plat_type = PLAT_TYPE_VF_P0; |
| 8887 | else if (lowest_1g == 26) |
| 8888 | parent->plat_type = PLAT_TYPE_VF_P1; |
| 8889 | else |
| 8890 | goto unknown_vg_1g_port; |
| 8891 | |
| 8892 | /* fallthru */ |
| 8893 | case 0x22: |
| 8894 | val = (phy_encode(PORT_TYPE_10G, 0) | |
| 8895 | phy_encode(PORT_TYPE_10G, 1) | |
| 8896 | phy_encode(PORT_TYPE_1G, 2) | |
| 8897 | phy_encode(PORT_TYPE_1G, 3)); |
| 8898 | break; |
| 8899 | |
| 8900 | case 0x20: |
| 8901 | val = (phy_encode(PORT_TYPE_10G, 0) | |
| 8902 | phy_encode(PORT_TYPE_10G, 1)); |
| 8903 | break; |
| 8904 | |
| 8905 | case 0x10: |
| 8906 | val = phy_encode(PORT_TYPE_10G, np->port); |
| 8907 | break; |
| 8908 | |
| 8909 | case 0x14: |
| 8910 | if (lowest_1g == 10) |
| 8911 | parent->plat_type = PLAT_TYPE_VF_P0; |
| 8912 | else if (lowest_1g == 26) |
| 8913 | parent->plat_type = PLAT_TYPE_VF_P1; |
| 8914 | else |
| 8915 | goto unknown_vg_1g_port; |
| 8916 | |
| 8917 | /* fallthru */ |
| 8918 | case 0x13: |
| 8919 | if ((lowest_10g & 0x7) == 0) |
| 8920 | val = (phy_encode(PORT_TYPE_10G, 0) | |
| 8921 | phy_encode(PORT_TYPE_1G, 1) | |
| 8922 | phy_encode(PORT_TYPE_1G, 2) | |
| 8923 | phy_encode(PORT_TYPE_1G, 3)); |
| 8924 | else |
| 8925 | val = (phy_encode(PORT_TYPE_1G, 0) | |
| 8926 | phy_encode(PORT_TYPE_10G, 1) | |
| 8927 | phy_encode(PORT_TYPE_1G, 2) | |
| 8928 | phy_encode(PORT_TYPE_1G, 3)); |
| 8929 | break; |
| 8930 | |
| 8931 | case 0x04: |
| 8932 | if (lowest_1g == 10) |
| 8933 | parent->plat_type = PLAT_TYPE_VF_P0; |
| 8934 | else if (lowest_1g == 26) |
| 8935 | parent->plat_type = PLAT_TYPE_VF_P1; |
| 8936 | else |
| 8937 | goto unknown_vg_1g_port; |
| 8938 | |
| 8939 | val = (phy_encode(PORT_TYPE_1G, 0) | |
| 8940 | phy_encode(PORT_TYPE_1G, 1) | |
| 8941 | phy_encode(PORT_TYPE_1G, 2) | |
| 8942 | phy_encode(PORT_TYPE_1G, 3)); |
| 8943 | break; |
| 8944 | |
| 8945 | default: |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8946 | pr_err("Unsupported port config 10G[%d] 1G[%d]\n", |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 8947 | num_10g, num_1g); |
| 8948 | return -EINVAL; |
| 8949 | } |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8950 | } |
| 8951 | |
| 8952 | parent->port_phy = val; |
| 8953 | |
| 8954 | if (parent->plat_type == PLAT_TYPE_NIU) |
| 8955 | niu_n2_divide_channels(parent); |
| 8956 | else |
| 8957 | niu_divide_channels(parent, num_10g, num_1g); |
| 8958 | |
| 8959 | niu_divide_rdc_groups(parent, num_10g, num_1g); |
| 8960 | |
| 8961 | return 0; |
| 8962 | |
| 8963 | unknown_vg_1g_port: |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 8964 | pr_err("Cannot identify platform type, 1gport=%d\n", lowest_1g); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8965 | return -EINVAL; |
| 8966 | } |
| 8967 | |
| 8968 | static int __devinit niu_probe_ports(struct niu *np) |
| 8969 | { |
| 8970 | struct niu_parent *parent = np->parent; |
| 8971 | int err, i; |
| 8972 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8973 | if (parent->port_phy == PORT_PHY_UNKNOWN) { |
| 8974 | err = walk_phys(np, parent); |
| 8975 | if (err) |
| 8976 | return err; |
| 8977 | |
| 8978 | niu_set_ldg_timer_res(np, 2); |
| 8979 | for (i = 0; i <= LDN_MAX; i++) |
| 8980 | niu_ldn_irq_enable(np, i, 0); |
| 8981 | } |
| 8982 | |
| 8983 | if (parent->port_phy == PORT_PHY_INVALID) |
| 8984 | return -EINVAL; |
| 8985 | |
| 8986 | return 0; |
| 8987 | } |
| 8988 | |
| 8989 | static int __devinit niu_classifier_swstate_init(struct niu *np) |
| 8990 | { |
| 8991 | struct niu_classifier *cp = &np->clas; |
| 8992 | |
Santwona Behera | 2d96cf8 | 2009-02-20 00:58:45 -0800 | [diff] [blame] | 8993 | cp->tcam_top = (u16) np->port; |
| 8994 | cp->tcam_sz = np->parent->tcam_num_entries / np->parent->num_ports; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 8995 | cp->h1_init = 0xffffffff; |
| 8996 | cp->h2_init = 0xffff; |
| 8997 | |
| 8998 | return fflp_early_init(np); |
| 8999 | } |
| 9000 | |
| 9001 | static void __devinit niu_link_config_init(struct niu *np) |
| 9002 | { |
| 9003 | struct niu_link_config *lp = &np->link_config; |
| 9004 | |
| 9005 | lp->advertising = (ADVERTISED_10baseT_Half | |
| 9006 | ADVERTISED_10baseT_Full | |
| 9007 | ADVERTISED_100baseT_Half | |
| 9008 | ADVERTISED_100baseT_Full | |
| 9009 | ADVERTISED_1000baseT_Half | |
| 9010 | ADVERTISED_1000baseT_Full | |
| 9011 | ADVERTISED_10000baseT_Full | |
| 9012 | ADVERTISED_Autoneg); |
| 9013 | lp->speed = lp->active_speed = SPEED_INVALID; |
Constantin Baranov | 38bb045d | 2009-02-18 17:53:20 -0800 | [diff] [blame] | 9014 | lp->duplex = DUPLEX_FULL; |
| 9015 | lp->active_duplex = DUPLEX_INVALID; |
| 9016 | lp->autoneg = 1; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9017 | #if 0 |
| 9018 | lp->loopback_mode = LOOPBACK_MAC; |
| 9019 | lp->active_speed = SPEED_10000; |
| 9020 | lp->active_duplex = DUPLEX_FULL; |
| 9021 | #else |
| 9022 | lp->loopback_mode = LOOPBACK_DISABLED; |
| 9023 | #endif |
| 9024 | } |
| 9025 | |
| 9026 | static int __devinit niu_init_mac_ipp_pcs_base(struct niu *np) |
| 9027 | { |
| 9028 | switch (np->port) { |
| 9029 | case 0: |
| 9030 | np->mac_regs = np->regs + XMAC_PORT0_OFF; |
| 9031 | np->ipp_off = 0x00000; |
| 9032 | np->pcs_off = 0x04000; |
| 9033 | np->xpcs_off = 0x02000; |
| 9034 | break; |
| 9035 | |
| 9036 | case 1: |
| 9037 | np->mac_regs = np->regs + XMAC_PORT1_OFF; |
| 9038 | np->ipp_off = 0x08000; |
| 9039 | np->pcs_off = 0x0a000; |
| 9040 | np->xpcs_off = 0x08000; |
| 9041 | break; |
| 9042 | |
| 9043 | case 2: |
| 9044 | np->mac_regs = np->regs + BMAC_PORT2_OFF; |
| 9045 | np->ipp_off = 0x04000; |
| 9046 | np->pcs_off = 0x0e000; |
| 9047 | np->xpcs_off = ~0UL; |
| 9048 | break; |
| 9049 | |
| 9050 | case 3: |
| 9051 | np->mac_regs = np->regs + BMAC_PORT3_OFF; |
| 9052 | np->ipp_off = 0x0c000; |
| 9053 | np->pcs_off = 0x12000; |
| 9054 | np->xpcs_off = ~0UL; |
| 9055 | break; |
| 9056 | |
| 9057 | default: |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 9058 | dev_err(np->device, "Port %u is invalid, cannot compute MAC block offset\n", np->port); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9059 | return -EINVAL; |
| 9060 | } |
| 9061 | |
| 9062 | return 0; |
| 9063 | } |
| 9064 | |
| 9065 | static void __devinit niu_try_msix(struct niu *np, u8 *ldg_num_map) |
| 9066 | { |
| 9067 | struct msix_entry msi_vec[NIU_NUM_LDG]; |
| 9068 | struct niu_parent *parent = np->parent; |
| 9069 | struct pci_dev *pdev = np->pdev; |
| 9070 | int i, num_irqs, err; |
| 9071 | u8 first_ldg; |
| 9072 | |
| 9073 | first_ldg = (NIU_NUM_LDG / parent->num_ports) * np->port; |
| 9074 | for (i = 0; i < (NIU_NUM_LDG / parent->num_ports); i++) |
| 9075 | ldg_num_map[i] = first_ldg + i; |
| 9076 | |
| 9077 | num_irqs = (parent->rxchan_per_port[np->port] + |
| 9078 | parent->txchan_per_port[np->port] + |
| 9079 | (np->port == 0 ? 3 : 1)); |
| 9080 | BUG_ON(num_irqs > (NIU_NUM_LDG / parent->num_ports)); |
| 9081 | |
| 9082 | retry: |
| 9083 | for (i = 0; i < num_irqs; i++) { |
| 9084 | msi_vec[i].vector = 0; |
| 9085 | msi_vec[i].entry = i; |
| 9086 | } |
| 9087 | |
| 9088 | err = pci_enable_msix(pdev, msi_vec, num_irqs); |
| 9089 | if (err < 0) { |
| 9090 | np->flags &= ~NIU_FLAGS_MSIX; |
| 9091 | return; |
| 9092 | } |
| 9093 | if (err > 0) { |
| 9094 | num_irqs = err; |
| 9095 | goto retry; |
| 9096 | } |
| 9097 | |
| 9098 | np->flags |= NIU_FLAGS_MSIX; |
| 9099 | for (i = 0; i < num_irqs; i++) |
| 9100 | np->ldg[i].irq = msi_vec[i].vector; |
| 9101 | np->num_ldg = num_irqs; |
| 9102 | } |
| 9103 | |
| 9104 | static int __devinit niu_n2_irq_init(struct niu *np, u8 *ldg_num_map) |
| 9105 | { |
| 9106 | #ifdef CONFIG_SPARC64 |
| 9107 | struct of_device *op = np->op; |
| 9108 | const u32 *int_prop; |
| 9109 | int i; |
| 9110 | |
Grant Likely | 61c7a08 | 2010-04-13 16:12:29 -0700 | [diff] [blame] | 9111 | int_prop = of_get_property(op->dev.of_node, "interrupts", NULL); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9112 | if (!int_prop) |
| 9113 | return -ENODEV; |
| 9114 | |
| 9115 | for (i = 0; i < op->num_irqs; i++) { |
| 9116 | ldg_num_map[i] = int_prop[i]; |
| 9117 | np->ldg[i].irq = op->irqs[i]; |
| 9118 | } |
| 9119 | |
| 9120 | np->num_ldg = op->num_irqs; |
| 9121 | |
| 9122 | return 0; |
| 9123 | #else |
| 9124 | return -EINVAL; |
| 9125 | #endif |
| 9126 | } |
| 9127 | |
| 9128 | static int __devinit niu_ldg_init(struct niu *np) |
| 9129 | { |
| 9130 | struct niu_parent *parent = np->parent; |
| 9131 | u8 ldg_num_map[NIU_NUM_LDG]; |
| 9132 | int first_chan, num_chan; |
| 9133 | int i, err, ldg_rotor; |
| 9134 | u8 port; |
| 9135 | |
| 9136 | np->num_ldg = 1; |
| 9137 | np->ldg[0].irq = np->dev->irq; |
| 9138 | if (parent->plat_type == PLAT_TYPE_NIU) { |
| 9139 | err = niu_n2_irq_init(np, ldg_num_map); |
| 9140 | if (err) |
| 9141 | return err; |
| 9142 | } else |
| 9143 | niu_try_msix(np, ldg_num_map); |
| 9144 | |
| 9145 | port = np->port; |
| 9146 | for (i = 0; i < np->num_ldg; i++) { |
| 9147 | struct niu_ldg *lp = &np->ldg[i]; |
| 9148 | |
| 9149 | netif_napi_add(np->dev, &lp->napi, niu_poll, 64); |
| 9150 | |
| 9151 | lp->np = np; |
| 9152 | lp->ldg_num = ldg_num_map[i]; |
| 9153 | lp->timer = 2; /* XXX */ |
| 9154 | |
| 9155 | /* On N2 NIU the firmware has setup the SID mappings so they go |
| 9156 | * to the correct values that will route the LDG to the proper |
| 9157 | * interrupt in the NCU interrupt table. |
| 9158 | */ |
| 9159 | if (np->parent->plat_type != PLAT_TYPE_NIU) { |
| 9160 | err = niu_set_ldg_sid(np, lp->ldg_num, port, i); |
| 9161 | if (err) |
| 9162 | return err; |
| 9163 | } |
| 9164 | } |
| 9165 | |
| 9166 | /* We adopt the LDG assignment ordering used by the N2 NIU |
| 9167 | * 'interrupt' properties because that simplifies a lot of |
| 9168 | * things. This ordering is: |
| 9169 | * |
| 9170 | * MAC |
| 9171 | * MIF (if port zero) |
| 9172 | * SYSERR (if port zero) |
| 9173 | * RX channels |
| 9174 | * TX channels |
| 9175 | */ |
| 9176 | |
| 9177 | ldg_rotor = 0; |
| 9178 | |
| 9179 | err = niu_ldg_assign_ldn(np, parent, ldg_num_map[ldg_rotor], |
| 9180 | LDN_MAC(port)); |
| 9181 | if (err) |
| 9182 | return err; |
| 9183 | |
| 9184 | ldg_rotor++; |
| 9185 | if (ldg_rotor == np->num_ldg) |
| 9186 | ldg_rotor = 0; |
| 9187 | |
| 9188 | if (port == 0) { |
| 9189 | err = niu_ldg_assign_ldn(np, parent, |
| 9190 | ldg_num_map[ldg_rotor], |
| 9191 | LDN_MIF); |
| 9192 | if (err) |
| 9193 | return err; |
| 9194 | |
| 9195 | ldg_rotor++; |
| 9196 | if (ldg_rotor == np->num_ldg) |
| 9197 | ldg_rotor = 0; |
| 9198 | |
| 9199 | err = niu_ldg_assign_ldn(np, parent, |
| 9200 | ldg_num_map[ldg_rotor], |
| 9201 | LDN_DEVICE_ERROR); |
| 9202 | if (err) |
| 9203 | return err; |
| 9204 | |
| 9205 | ldg_rotor++; |
| 9206 | if (ldg_rotor == np->num_ldg) |
| 9207 | ldg_rotor = 0; |
| 9208 | |
| 9209 | } |
| 9210 | |
| 9211 | first_chan = 0; |
| 9212 | for (i = 0; i < port; i++) |
| 9213 | first_chan += parent->rxchan_per_port[port]; |
| 9214 | num_chan = parent->rxchan_per_port[port]; |
| 9215 | |
| 9216 | for (i = first_chan; i < (first_chan + num_chan); i++) { |
| 9217 | err = niu_ldg_assign_ldn(np, parent, |
| 9218 | ldg_num_map[ldg_rotor], |
| 9219 | LDN_RXDMA(i)); |
| 9220 | if (err) |
| 9221 | return err; |
| 9222 | ldg_rotor++; |
| 9223 | if (ldg_rotor == np->num_ldg) |
| 9224 | ldg_rotor = 0; |
| 9225 | } |
| 9226 | |
| 9227 | first_chan = 0; |
| 9228 | for (i = 0; i < port; i++) |
| 9229 | first_chan += parent->txchan_per_port[port]; |
| 9230 | num_chan = parent->txchan_per_port[port]; |
| 9231 | for (i = first_chan; i < (first_chan + num_chan); i++) { |
| 9232 | err = niu_ldg_assign_ldn(np, parent, |
| 9233 | ldg_num_map[ldg_rotor], |
| 9234 | LDN_TXDMA(i)); |
| 9235 | if (err) |
| 9236 | return err; |
| 9237 | ldg_rotor++; |
| 9238 | if (ldg_rotor == np->num_ldg) |
| 9239 | ldg_rotor = 0; |
| 9240 | } |
| 9241 | |
| 9242 | return 0; |
| 9243 | } |
| 9244 | |
| 9245 | static void __devexit niu_ldg_free(struct niu *np) |
| 9246 | { |
| 9247 | if (np->flags & NIU_FLAGS_MSIX) |
| 9248 | pci_disable_msix(np->pdev); |
| 9249 | } |
| 9250 | |
| 9251 | static int __devinit niu_get_of_props(struct niu *np) |
| 9252 | { |
| 9253 | #ifdef CONFIG_SPARC64 |
| 9254 | struct net_device *dev = np->dev; |
| 9255 | struct device_node *dp; |
| 9256 | const char *phy_type; |
| 9257 | const u8 *mac_addr; |
Matheos Worku | f9af857 | 2008-05-12 03:10:59 -0700 | [diff] [blame] | 9258 | const char *model; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9259 | int prop_len; |
| 9260 | |
| 9261 | if (np->parent->plat_type == PLAT_TYPE_NIU) |
Grant Likely | 61c7a08 | 2010-04-13 16:12:29 -0700 | [diff] [blame] | 9262 | dp = np->op->dev.of_node; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9263 | else |
| 9264 | dp = pci_device_to_OF_node(np->pdev); |
| 9265 | |
| 9266 | phy_type = of_get_property(dp, "phy-type", &prop_len); |
| 9267 | if (!phy_type) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 9268 | netdev_err(dev, "%s: OF node lacks phy-type property\n", |
| 9269 | dp->full_name); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9270 | return -EINVAL; |
| 9271 | } |
| 9272 | |
| 9273 | if (!strcmp(phy_type, "none")) |
| 9274 | return -ENODEV; |
| 9275 | |
| 9276 | strcpy(np->vpd.phy_type, phy_type); |
| 9277 | |
| 9278 | if (niu_phy_type_prop_decode(np, np->vpd.phy_type)) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 9279 | netdev_err(dev, "%s: Illegal phy string [%s]\n", |
| 9280 | dp->full_name, np->vpd.phy_type); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9281 | return -EINVAL; |
| 9282 | } |
| 9283 | |
| 9284 | mac_addr = of_get_property(dp, "local-mac-address", &prop_len); |
| 9285 | if (!mac_addr) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 9286 | netdev_err(dev, "%s: OF node lacks local-mac-address property\n", |
| 9287 | dp->full_name); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9288 | return -EINVAL; |
| 9289 | } |
| 9290 | if (prop_len != dev->addr_len) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 9291 | netdev_err(dev, "%s: OF MAC address prop len (%d) is wrong\n", |
| 9292 | dp->full_name, prop_len); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9293 | } |
| 9294 | memcpy(dev->perm_addr, mac_addr, dev->addr_len); |
| 9295 | if (!is_valid_ether_addr(&dev->perm_addr[0])) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 9296 | netdev_err(dev, "%s: OF MAC address is invalid\n", |
| 9297 | dp->full_name); |
| 9298 | netdev_err(dev, "%s: [ %pM ]\n", dp->full_name, dev->perm_addr); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9299 | return -EINVAL; |
| 9300 | } |
| 9301 | |
| 9302 | memcpy(dev->dev_addr, dev->perm_addr, dev->addr_len); |
| 9303 | |
Matheos Worku | f9af857 | 2008-05-12 03:10:59 -0700 | [diff] [blame] | 9304 | model = of_get_property(dp, "model", &prop_len); |
| 9305 | |
| 9306 | if (model) |
| 9307 | strcpy(np->vpd.model, model); |
| 9308 | |
Tanli Chang | 9c5cd67 | 2009-05-26 20:45:50 -0700 | [diff] [blame] | 9309 | if (of_find_property(dp, "hot-swappable-phy", &prop_len)) { |
| 9310 | np->flags |= (NIU_FLAGS_10G | NIU_FLAGS_FIBER | |
| 9311 | NIU_FLAGS_HOTPLUG_PHY); |
| 9312 | } |
| 9313 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9314 | return 0; |
| 9315 | #else |
| 9316 | return -EINVAL; |
| 9317 | #endif |
| 9318 | } |
| 9319 | |
| 9320 | static int __devinit niu_get_invariants(struct niu *np) |
| 9321 | { |
| 9322 | int err, have_props; |
| 9323 | u32 offset; |
| 9324 | |
| 9325 | err = niu_get_of_props(np); |
| 9326 | if (err == -ENODEV) |
| 9327 | return err; |
| 9328 | |
| 9329 | have_props = !err; |
| 9330 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9331 | err = niu_init_mac_ipp_pcs_base(np); |
| 9332 | if (err) |
| 9333 | return err; |
| 9334 | |
Matheos Worku | 7f7c407 | 2008-04-24 21:02:37 -0700 | [diff] [blame] | 9335 | if (have_props) { |
| 9336 | err = niu_get_and_validate_port(np); |
| 9337 | if (err) |
| 9338 | return err; |
| 9339 | |
| 9340 | } else { |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9341 | if (np->parent->plat_type == PLAT_TYPE_NIU) |
| 9342 | return -EINVAL; |
| 9343 | |
| 9344 | nw64(ESPC_PIO_EN, ESPC_PIO_EN_ENABLE); |
| 9345 | offset = niu_pci_vpd_offset(np); |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 9346 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
| 9347 | "%s() VPD offset [%08x]\n", __func__, offset); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9348 | if (offset) |
| 9349 | niu_pci_vpd_fetch(np, offset); |
| 9350 | nw64(ESPC_PIO_EN, 0); |
| 9351 | |
Matheos Worku | 7f7c407 | 2008-04-24 21:02:37 -0700 | [diff] [blame] | 9352 | if (np->flags & NIU_FLAGS_VPD_VALID) { |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9353 | niu_pci_vpd_validate(np); |
Matheos Worku | 7f7c407 | 2008-04-24 21:02:37 -0700 | [diff] [blame] | 9354 | err = niu_get_and_validate_port(np); |
| 9355 | if (err) |
| 9356 | return err; |
| 9357 | } |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9358 | |
| 9359 | if (!(np->flags & NIU_FLAGS_VPD_VALID)) { |
Matheos Worku | 7f7c407 | 2008-04-24 21:02:37 -0700 | [diff] [blame] | 9360 | err = niu_get_and_validate_port(np); |
| 9361 | if (err) |
| 9362 | return err; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9363 | err = niu_pci_probe_sprom(np); |
| 9364 | if (err) |
| 9365 | return err; |
| 9366 | } |
| 9367 | } |
| 9368 | |
| 9369 | err = niu_probe_ports(np); |
| 9370 | if (err) |
| 9371 | return err; |
| 9372 | |
| 9373 | niu_ldg_init(np); |
| 9374 | |
| 9375 | niu_classifier_swstate_init(np); |
| 9376 | niu_link_config_init(np); |
| 9377 | |
| 9378 | err = niu_determine_phy_disposition(np); |
| 9379 | if (!err) |
| 9380 | err = niu_init_link(np); |
| 9381 | |
| 9382 | return err; |
| 9383 | } |
| 9384 | |
| 9385 | static LIST_HEAD(niu_parent_list); |
| 9386 | static DEFINE_MUTEX(niu_parent_lock); |
| 9387 | static int niu_parent_index; |
| 9388 | |
| 9389 | static ssize_t show_port_phy(struct device *dev, |
| 9390 | struct device_attribute *attr, char *buf) |
| 9391 | { |
| 9392 | struct platform_device *plat_dev = to_platform_device(dev); |
| 9393 | struct niu_parent *p = plat_dev->dev.platform_data; |
| 9394 | u32 port_phy = p->port_phy; |
| 9395 | char *orig_buf = buf; |
| 9396 | int i; |
| 9397 | |
| 9398 | if (port_phy == PORT_PHY_UNKNOWN || |
| 9399 | port_phy == PORT_PHY_INVALID) |
| 9400 | return 0; |
| 9401 | |
| 9402 | for (i = 0; i < p->num_ports; i++) { |
| 9403 | const char *type_str; |
| 9404 | int type; |
| 9405 | |
| 9406 | type = phy_decode(port_phy, i); |
| 9407 | if (type == PORT_TYPE_10G) |
| 9408 | type_str = "10G"; |
| 9409 | else |
| 9410 | type_str = "1G"; |
| 9411 | buf += sprintf(buf, |
| 9412 | (i == 0) ? "%s" : " %s", |
| 9413 | type_str); |
| 9414 | } |
| 9415 | buf += sprintf(buf, "\n"); |
| 9416 | return buf - orig_buf; |
| 9417 | } |
| 9418 | |
| 9419 | static ssize_t show_plat_type(struct device *dev, |
| 9420 | struct device_attribute *attr, char *buf) |
| 9421 | { |
| 9422 | struct platform_device *plat_dev = to_platform_device(dev); |
| 9423 | struct niu_parent *p = plat_dev->dev.platform_data; |
| 9424 | const char *type_str; |
| 9425 | |
| 9426 | switch (p->plat_type) { |
| 9427 | case PLAT_TYPE_ATLAS: |
| 9428 | type_str = "atlas"; |
| 9429 | break; |
| 9430 | case PLAT_TYPE_NIU: |
| 9431 | type_str = "niu"; |
| 9432 | break; |
| 9433 | case PLAT_TYPE_VF_P0: |
| 9434 | type_str = "vf_p0"; |
| 9435 | break; |
| 9436 | case PLAT_TYPE_VF_P1: |
| 9437 | type_str = "vf_p1"; |
| 9438 | break; |
| 9439 | default: |
| 9440 | type_str = "unknown"; |
| 9441 | break; |
| 9442 | } |
| 9443 | |
| 9444 | return sprintf(buf, "%s\n", type_str); |
| 9445 | } |
| 9446 | |
| 9447 | static ssize_t __show_chan_per_port(struct device *dev, |
| 9448 | struct device_attribute *attr, char *buf, |
| 9449 | int rx) |
| 9450 | { |
| 9451 | struct platform_device *plat_dev = to_platform_device(dev); |
| 9452 | struct niu_parent *p = plat_dev->dev.platform_data; |
| 9453 | char *orig_buf = buf; |
| 9454 | u8 *arr; |
| 9455 | int i; |
| 9456 | |
| 9457 | arr = (rx ? p->rxchan_per_port : p->txchan_per_port); |
| 9458 | |
| 9459 | for (i = 0; i < p->num_ports; i++) { |
| 9460 | buf += sprintf(buf, |
| 9461 | (i == 0) ? "%d" : " %d", |
| 9462 | arr[i]); |
| 9463 | } |
| 9464 | buf += sprintf(buf, "\n"); |
| 9465 | |
| 9466 | return buf - orig_buf; |
| 9467 | } |
| 9468 | |
| 9469 | static ssize_t show_rxchan_per_port(struct device *dev, |
| 9470 | struct device_attribute *attr, char *buf) |
| 9471 | { |
| 9472 | return __show_chan_per_port(dev, attr, buf, 1); |
| 9473 | } |
| 9474 | |
| 9475 | static ssize_t show_txchan_per_port(struct device *dev, |
| 9476 | struct device_attribute *attr, char *buf) |
| 9477 | { |
| 9478 | return __show_chan_per_port(dev, attr, buf, 1); |
| 9479 | } |
| 9480 | |
| 9481 | static ssize_t show_num_ports(struct device *dev, |
| 9482 | struct device_attribute *attr, char *buf) |
| 9483 | { |
| 9484 | struct platform_device *plat_dev = to_platform_device(dev); |
| 9485 | struct niu_parent *p = plat_dev->dev.platform_data; |
| 9486 | |
| 9487 | return sprintf(buf, "%d\n", p->num_ports); |
| 9488 | } |
| 9489 | |
| 9490 | static struct device_attribute niu_parent_attributes[] = { |
| 9491 | __ATTR(port_phy, S_IRUGO, show_port_phy, NULL), |
| 9492 | __ATTR(plat_type, S_IRUGO, show_plat_type, NULL), |
| 9493 | __ATTR(rxchan_per_port, S_IRUGO, show_rxchan_per_port, NULL), |
| 9494 | __ATTR(txchan_per_port, S_IRUGO, show_txchan_per_port, NULL), |
| 9495 | __ATTR(num_ports, S_IRUGO, show_num_ports, NULL), |
| 9496 | {} |
| 9497 | }; |
| 9498 | |
| 9499 | static struct niu_parent * __devinit niu_new_parent(struct niu *np, |
| 9500 | union niu_parent_id *id, |
| 9501 | u8 ptype) |
| 9502 | { |
| 9503 | struct platform_device *plat_dev; |
| 9504 | struct niu_parent *p; |
| 9505 | int i; |
| 9506 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9507 | plat_dev = platform_device_register_simple("niu", niu_parent_index, |
| 9508 | NULL, 0); |
Dan Carpenter | 58f3e0a | 2009-04-08 15:44:04 -0700 | [diff] [blame] | 9509 | if (IS_ERR(plat_dev)) |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9510 | return NULL; |
| 9511 | |
| 9512 | for (i = 0; attr_name(niu_parent_attributes[i]); i++) { |
| 9513 | int err = device_create_file(&plat_dev->dev, |
| 9514 | &niu_parent_attributes[i]); |
| 9515 | if (err) |
| 9516 | goto fail_unregister; |
| 9517 | } |
| 9518 | |
| 9519 | p = kzalloc(sizeof(*p), GFP_KERNEL); |
| 9520 | if (!p) |
| 9521 | goto fail_unregister; |
| 9522 | |
| 9523 | p->index = niu_parent_index++; |
| 9524 | |
| 9525 | plat_dev->dev.platform_data = p; |
| 9526 | p->plat_dev = plat_dev; |
| 9527 | |
| 9528 | memcpy(&p->id, id, sizeof(*id)); |
| 9529 | p->plat_type = ptype; |
| 9530 | INIT_LIST_HEAD(&p->list); |
| 9531 | atomic_set(&p->refcnt, 0); |
| 9532 | list_add(&p->list, &niu_parent_list); |
| 9533 | spin_lock_init(&p->lock); |
| 9534 | |
| 9535 | p->rxdma_clock_divider = 7500; |
| 9536 | |
| 9537 | p->tcam_num_entries = NIU_PCI_TCAM_ENTRIES; |
| 9538 | if (p->plat_type == PLAT_TYPE_NIU) |
| 9539 | p->tcam_num_entries = NIU_NONPCI_TCAM_ENTRIES; |
| 9540 | |
| 9541 | for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_SCTP_IPV6; i++) { |
| 9542 | int index = i - CLASS_CODE_USER_PROG1; |
| 9543 | |
| 9544 | p->tcam_key[index] = TCAM_KEY_TSEL; |
| 9545 | p->flow_key[index] = (FLOW_KEY_IPSA | |
| 9546 | FLOW_KEY_IPDA | |
| 9547 | FLOW_KEY_PROTO | |
| 9548 | (FLOW_KEY_L4_BYTE12 << |
| 9549 | FLOW_KEY_L4_0_SHIFT) | |
| 9550 | (FLOW_KEY_L4_BYTE12 << |
| 9551 | FLOW_KEY_L4_1_SHIFT)); |
| 9552 | } |
| 9553 | |
| 9554 | for (i = 0; i < LDN_MAX + 1; i++) |
| 9555 | p->ldg_map[i] = LDG_INVALID; |
| 9556 | |
| 9557 | return p; |
| 9558 | |
| 9559 | fail_unregister: |
| 9560 | platform_device_unregister(plat_dev); |
| 9561 | return NULL; |
| 9562 | } |
| 9563 | |
| 9564 | static struct niu_parent * __devinit niu_get_parent(struct niu *np, |
| 9565 | union niu_parent_id *id, |
| 9566 | u8 ptype) |
| 9567 | { |
| 9568 | struct niu_parent *p, *tmp; |
| 9569 | int port = np->port; |
| 9570 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9571 | mutex_lock(&niu_parent_lock); |
| 9572 | p = NULL; |
| 9573 | list_for_each_entry(tmp, &niu_parent_list, list) { |
| 9574 | if (!memcmp(id, &tmp->id, sizeof(*id))) { |
| 9575 | p = tmp; |
| 9576 | break; |
| 9577 | } |
| 9578 | } |
| 9579 | if (!p) |
| 9580 | p = niu_new_parent(np, id, ptype); |
| 9581 | |
| 9582 | if (p) { |
| 9583 | char port_name[6]; |
| 9584 | int err; |
| 9585 | |
| 9586 | sprintf(port_name, "port%d", port); |
| 9587 | err = sysfs_create_link(&p->plat_dev->dev.kobj, |
| 9588 | &np->device->kobj, |
| 9589 | port_name); |
| 9590 | if (!err) { |
| 9591 | p->ports[port] = np; |
| 9592 | atomic_inc(&p->refcnt); |
| 9593 | } |
| 9594 | } |
| 9595 | mutex_unlock(&niu_parent_lock); |
| 9596 | |
| 9597 | return p; |
| 9598 | } |
| 9599 | |
| 9600 | static void niu_put_parent(struct niu *np) |
| 9601 | { |
| 9602 | struct niu_parent *p = np->parent; |
| 9603 | u8 port = np->port; |
| 9604 | char port_name[6]; |
| 9605 | |
| 9606 | BUG_ON(!p || p->ports[port] != np); |
| 9607 | |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 9608 | netif_printk(np, probe, KERN_DEBUG, np->dev, |
| 9609 | "%s() port[%u]\n", __func__, port); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9610 | |
| 9611 | sprintf(port_name, "port%d", port); |
| 9612 | |
| 9613 | mutex_lock(&niu_parent_lock); |
| 9614 | |
| 9615 | sysfs_remove_link(&p->plat_dev->dev.kobj, port_name); |
| 9616 | |
| 9617 | p->ports[port] = NULL; |
| 9618 | np->parent = NULL; |
| 9619 | |
| 9620 | if (atomic_dec_and_test(&p->refcnt)) { |
| 9621 | list_del(&p->list); |
| 9622 | platform_device_unregister(p->plat_dev); |
| 9623 | } |
| 9624 | |
| 9625 | mutex_unlock(&niu_parent_lock); |
| 9626 | } |
| 9627 | |
| 9628 | static void *niu_pci_alloc_coherent(struct device *dev, size_t size, |
| 9629 | u64 *handle, gfp_t flag) |
| 9630 | { |
| 9631 | dma_addr_t dh; |
| 9632 | void *ret; |
| 9633 | |
| 9634 | ret = dma_alloc_coherent(dev, size, &dh, flag); |
| 9635 | if (ret) |
| 9636 | *handle = dh; |
| 9637 | return ret; |
| 9638 | } |
| 9639 | |
| 9640 | static void niu_pci_free_coherent(struct device *dev, size_t size, |
| 9641 | void *cpu_addr, u64 handle) |
| 9642 | { |
| 9643 | dma_free_coherent(dev, size, cpu_addr, handle); |
| 9644 | } |
| 9645 | |
| 9646 | static u64 niu_pci_map_page(struct device *dev, struct page *page, |
| 9647 | unsigned long offset, size_t size, |
| 9648 | enum dma_data_direction direction) |
| 9649 | { |
| 9650 | return dma_map_page(dev, page, offset, size, direction); |
| 9651 | } |
| 9652 | |
| 9653 | static void niu_pci_unmap_page(struct device *dev, u64 dma_address, |
| 9654 | size_t size, enum dma_data_direction direction) |
| 9655 | { |
Hannes Eder | a08b32d | 2008-12-25 23:56:04 -0800 | [diff] [blame] | 9656 | dma_unmap_page(dev, dma_address, size, direction); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9657 | } |
| 9658 | |
| 9659 | static u64 niu_pci_map_single(struct device *dev, void *cpu_addr, |
| 9660 | size_t size, |
| 9661 | enum dma_data_direction direction) |
| 9662 | { |
| 9663 | return dma_map_single(dev, cpu_addr, size, direction); |
| 9664 | } |
| 9665 | |
| 9666 | static void niu_pci_unmap_single(struct device *dev, u64 dma_address, |
| 9667 | size_t size, |
| 9668 | enum dma_data_direction direction) |
| 9669 | { |
| 9670 | dma_unmap_single(dev, dma_address, size, direction); |
| 9671 | } |
| 9672 | |
| 9673 | static const struct niu_ops niu_pci_ops = { |
| 9674 | .alloc_coherent = niu_pci_alloc_coherent, |
| 9675 | .free_coherent = niu_pci_free_coherent, |
| 9676 | .map_page = niu_pci_map_page, |
| 9677 | .unmap_page = niu_pci_unmap_page, |
| 9678 | .map_single = niu_pci_map_single, |
| 9679 | .unmap_single = niu_pci_unmap_single, |
| 9680 | }; |
| 9681 | |
| 9682 | static void __devinit niu_driver_version(void) |
| 9683 | { |
| 9684 | static int niu_version_printed; |
| 9685 | |
| 9686 | if (niu_version_printed++ == 0) |
| 9687 | pr_info("%s", version); |
| 9688 | } |
| 9689 | |
| 9690 | static struct net_device * __devinit niu_alloc_and_init( |
| 9691 | struct device *gen_dev, struct pci_dev *pdev, |
| 9692 | struct of_device *op, const struct niu_ops *ops, |
| 9693 | u8 port) |
| 9694 | { |
David S. Miller | b4c2163 | 2008-07-15 03:48:19 -0700 | [diff] [blame] | 9695 | struct net_device *dev; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9696 | struct niu *np; |
| 9697 | |
David S. Miller | b4c2163 | 2008-07-15 03:48:19 -0700 | [diff] [blame] | 9698 | dev = alloc_etherdev_mq(sizeof(struct niu), NIU_NUM_TXCHAN); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9699 | if (!dev) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 9700 | dev_err(gen_dev, "Etherdev alloc failed, aborting\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9701 | return NULL; |
| 9702 | } |
| 9703 | |
| 9704 | SET_NETDEV_DEV(dev, gen_dev); |
| 9705 | |
| 9706 | np = netdev_priv(dev); |
| 9707 | np->dev = dev; |
| 9708 | np->pdev = pdev; |
| 9709 | np->op = op; |
| 9710 | np->device = gen_dev; |
| 9711 | np->ops = ops; |
| 9712 | |
| 9713 | np->msg_enable = niu_debug; |
| 9714 | |
| 9715 | spin_lock_init(&np->lock); |
| 9716 | INIT_WORK(&np->reset_task, niu_reset_task); |
| 9717 | |
| 9718 | np->port = port; |
| 9719 | |
| 9720 | return dev; |
| 9721 | } |
| 9722 | |
Stephen Hemminger | 2c9171d | 2008-11-19 22:27:43 -0800 | [diff] [blame] | 9723 | static const struct net_device_ops niu_netdev_ops = { |
| 9724 | .ndo_open = niu_open, |
| 9725 | .ndo_stop = niu_close, |
Stephen Hemminger | 0082982 | 2008-11-20 20:14:53 -0800 | [diff] [blame] | 9726 | .ndo_start_xmit = niu_start_xmit, |
Stephen Hemminger | 2c9171d | 2008-11-19 22:27:43 -0800 | [diff] [blame] | 9727 | .ndo_get_stats = niu_get_stats, |
| 9728 | .ndo_set_multicast_list = niu_set_rx_mode, |
| 9729 | .ndo_validate_addr = eth_validate_addr, |
| 9730 | .ndo_set_mac_address = niu_set_mac_addr, |
| 9731 | .ndo_do_ioctl = niu_ioctl, |
| 9732 | .ndo_tx_timeout = niu_tx_timeout, |
| 9733 | .ndo_change_mtu = niu_change_mtu, |
| 9734 | }; |
| 9735 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9736 | static void __devinit niu_assign_netdev_ops(struct net_device *dev) |
| 9737 | { |
Stephen Hemminger | 2c9171d | 2008-11-19 22:27:43 -0800 | [diff] [blame] | 9738 | dev->netdev_ops = &niu_netdev_ops; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9739 | dev->ethtool_ops = &niu_ethtool_ops; |
| 9740 | dev->watchdog_timeo = NIU_TX_TIMEOUT; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9741 | } |
| 9742 | |
| 9743 | static void __devinit niu_device_announce(struct niu *np) |
| 9744 | { |
| 9745 | struct net_device *dev = np->dev; |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9746 | |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 9747 | pr_info("%s: NIU Ethernet %pM\n", dev->name, dev->dev_addr); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9748 | |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 9749 | if (np->parent->plat_type == PLAT_TYPE_ATCA_CP3220) { |
| 9750 | pr_info("%s: Port type[%s] mode[%s:%s] XCVR[%s] phy[%s]\n", |
| 9751 | dev->name, |
| 9752 | (np->flags & NIU_FLAGS_XMAC ? "XMAC" : "BMAC"), |
| 9753 | (np->flags & NIU_FLAGS_10G ? "10G" : "1G"), |
| 9754 | (np->flags & NIU_FLAGS_FIBER ? "RGMII FIBER" : "SERDES"), |
| 9755 | (np->mac_xcvr == MAC_XCVR_MII ? "MII" : |
| 9756 | (np->mac_xcvr == MAC_XCVR_PCS ? "PCS" : "XPCS")), |
| 9757 | np->vpd.phy_type); |
| 9758 | } else { |
| 9759 | pr_info("%s: Port type[%s] mode[%s:%s] XCVR[%s] phy[%s]\n", |
| 9760 | dev->name, |
| 9761 | (np->flags & NIU_FLAGS_XMAC ? "XMAC" : "BMAC"), |
| 9762 | (np->flags & NIU_FLAGS_10G ? "10G" : "1G"), |
Santwona Behera | e3e081e | 2008-11-14 14:44:08 -0800 | [diff] [blame] | 9763 | (np->flags & NIU_FLAGS_FIBER ? "FIBER" : |
| 9764 | (np->flags & NIU_FLAGS_XCVR_SERDES ? "SERDES" : |
| 9765 | "COPPER")), |
Matheos Worku | 5fbd7e2 | 2008-02-28 21:25:43 -0800 | [diff] [blame] | 9766 | (np->mac_xcvr == MAC_XCVR_MII ? "MII" : |
| 9767 | (np->mac_xcvr == MAC_XCVR_PCS ? "PCS" : "XPCS")), |
| 9768 | np->vpd.phy_type); |
| 9769 | } |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9770 | } |
| 9771 | |
David S. Miller | 3cfa856 | 2010-04-22 15:48:17 -0700 | [diff] [blame] | 9772 | static void __devinit niu_set_basic_features(struct net_device *dev) |
| 9773 | { |
| 9774 | dev->features |= (NETIF_F_SG | NETIF_F_HW_CSUM | |
| 9775 | NETIF_F_GRO | NETIF_F_RXHASH); |
| 9776 | } |
| 9777 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9778 | static int __devinit niu_pci_init_one(struct pci_dev *pdev, |
| 9779 | const struct pci_device_id *ent) |
| 9780 | { |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9781 | union niu_parent_id parent_id; |
| 9782 | struct net_device *dev; |
| 9783 | struct niu *np; |
| 9784 | int err, pos; |
| 9785 | u64 dma_mask; |
| 9786 | u16 val16; |
| 9787 | |
| 9788 | niu_driver_version(); |
| 9789 | |
| 9790 | err = pci_enable_device(pdev); |
| 9791 | if (err) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 9792 | dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9793 | return err; |
| 9794 | } |
| 9795 | |
| 9796 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) || |
| 9797 | !(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 9798 | dev_err(&pdev->dev, "Cannot find proper PCI device base addresses, aborting\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9799 | err = -ENODEV; |
| 9800 | goto err_out_disable_pdev; |
| 9801 | } |
| 9802 | |
| 9803 | err = pci_request_regions(pdev, DRV_MODULE_NAME); |
| 9804 | if (err) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 9805 | dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9806 | goto err_out_disable_pdev; |
| 9807 | } |
| 9808 | |
| 9809 | pos = pci_find_capability(pdev, PCI_CAP_ID_EXP); |
| 9810 | if (pos <= 0) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 9811 | dev_err(&pdev->dev, "Cannot find PCI Express capability, aborting\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9812 | goto err_out_free_res; |
| 9813 | } |
| 9814 | |
| 9815 | dev = niu_alloc_and_init(&pdev->dev, pdev, NULL, |
| 9816 | &niu_pci_ops, PCI_FUNC(pdev->devfn)); |
| 9817 | if (!dev) { |
| 9818 | err = -ENOMEM; |
| 9819 | goto err_out_free_res; |
| 9820 | } |
| 9821 | np = netdev_priv(dev); |
| 9822 | |
| 9823 | memset(&parent_id, 0, sizeof(parent_id)); |
| 9824 | parent_id.pci.domain = pci_domain_nr(pdev->bus); |
| 9825 | parent_id.pci.bus = pdev->bus->number; |
| 9826 | parent_id.pci.device = PCI_SLOT(pdev->devfn); |
| 9827 | |
| 9828 | np->parent = niu_get_parent(np, &parent_id, |
| 9829 | PLAT_TYPE_ATLAS); |
| 9830 | if (!np->parent) { |
| 9831 | err = -ENOMEM; |
| 9832 | goto err_out_free_dev; |
| 9833 | } |
| 9834 | |
| 9835 | pci_read_config_word(pdev, pos + PCI_EXP_DEVCTL, &val16); |
| 9836 | val16 &= ~PCI_EXP_DEVCTL_NOSNOOP_EN; |
| 9837 | val16 |= (PCI_EXP_DEVCTL_CERE | |
| 9838 | PCI_EXP_DEVCTL_NFERE | |
| 9839 | PCI_EXP_DEVCTL_FERE | |
| 9840 | PCI_EXP_DEVCTL_URRE | |
| 9841 | PCI_EXP_DEVCTL_RELAX_EN); |
| 9842 | pci_write_config_word(pdev, pos + PCI_EXP_DEVCTL, val16); |
| 9843 | |
Marin Mitov | 8cbd962 | 2009-11-08 05:59:27 +0000 | [diff] [blame] | 9844 | dma_mask = DMA_BIT_MASK(44); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9845 | err = pci_set_dma_mask(pdev, dma_mask); |
| 9846 | if (!err) { |
| 9847 | dev->features |= NETIF_F_HIGHDMA; |
| 9848 | err = pci_set_consistent_dma_mask(pdev, dma_mask); |
| 9849 | if (err) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 9850 | dev_err(&pdev->dev, "Unable to obtain 44 bit DMA for consistent allocations, aborting\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9851 | goto err_out_release_parent; |
| 9852 | } |
| 9853 | } |
Yang Hongyang | 284901a | 2009-04-06 19:01:15 -0700 | [diff] [blame] | 9854 | if (err || dma_mask == DMA_BIT_MASK(32)) { |
| 9855 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9856 | if (err) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 9857 | dev_err(&pdev->dev, "No usable DMA configuration, aborting\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9858 | goto err_out_release_parent; |
| 9859 | } |
| 9860 | } |
| 9861 | |
David S. Miller | 3cfa856 | 2010-04-22 15:48:17 -0700 | [diff] [blame] | 9862 | niu_set_basic_features(dev); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9863 | |
David S. Miller | 19ecb6b | 2008-11-03 17:05:16 -0800 | [diff] [blame] | 9864 | np->regs = pci_ioremap_bar(pdev, 0); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9865 | if (!np->regs) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 9866 | dev_err(&pdev->dev, "Cannot map device registers, aborting\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9867 | err = -ENOMEM; |
| 9868 | goto err_out_release_parent; |
| 9869 | } |
| 9870 | |
| 9871 | pci_set_master(pdev); |
| 9872 | pci_save_state(pdev); |
| 9873 | |
| 9874 | dev->irq = pdev->irq; |
| 9875 | |
| 9876 | niu_assign_netdev_ops(dev); |
| 9877 | |
| 9878 | err = niu_get_invariants(np); |
| 9879 | if (err) { |
| 9880 | if (err != -ENODEV) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 9881 | dev_err(&pdev->dev, "Problem fetching invariants of chip, aborting\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9882 | goto err_out_iounmap; |
| 9883 | } |
| 9884 | |
| 9885 | err = register_netdev(dev); |
| 9886 | if (err) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 9887 | dev_err(&pdev->dev, "Cannot register net device, aborting\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 9888 | goto err_out_iounmap; |
| 9889 | } |
| 9890 | |
| 9891 | pci_set_drvdata(pdev, dev); |
| 9892 | |
| 9893 | niu_device_announce(np); |
| 9894 | |
| 9895 | return 0; |
| 9896 | |
| 9897 | err_out_iounmap: |
| 9898 | if (np->regs) { |
| 9899 | iounmap(np->regs); |
| 9900 | np->regs = NULL; |
| 9901 | } |
| 9902 | |
| 9903 | err_out_release_parent: |
| 9904 | niu_put_parent(np); |
| 9905 | |
| 9906 | err_out_free_dev: |
| 9907 | free_netdev(dev); |
| 9908 | |
| 9909 | err_out_free_res: |
| 9910 | pci_release_regions(pdev); |
| 9911 | |
| 9912 | err_out_disable_pdev: |
| 9913 | pci_disable_device(pdev); |
| 9914 | pci_set_drvdata(pdev, NULL); |
| 9915 | |
| 9916 | return err; |
| 9917 | } |
| 9918 | |
| 9919 | static void __devexit niu_pci_remove_one(struct pci_dev *pdev) |
| 9920 | { |
| 9921 | struct net_device *dev = pci_get_drvdata(pdev); |
| 9922 | |
| 9923 | if (dev) { |
| 9924 | struct niu *np = netdev_priv(dev); |
| 9925 | |
| 9926 | unregister_netdev(dev); |
| 9927 | if (np->regs) { |
| 9928 | iounmap(np->regs); |
| 9929 | np->regs = NULL; |
| 9930 | } |
| 9931 | |
| 9932 | niu_ldg_free(np); |
| 9933 | |
| 9934 | niu_put_parent(np); |
| 9935 | |
| 9936 | free_netdev(dev); |
| 9937 | pci_release_regions(pdev); |
| 9938 | pci_disable_device(pdev); |
| 9939 | pci_set_drvdata(pdev, NULL); |
| 9940 | } |
| 9941 | } |
| 9942 | |
| 9943 | static int niu_suspend(struct pci_dev *pdev, pm_message_t state) |
| 9944 | { |
| 9945 | struct net_device *dev = pci_get_drvdata(pdev); |
| 9946 | struct niu *np = netdev_priv(dev); |
| 9947 | unsigned long flags; |
| 9948 | |
| 9949 | if (!netif_running(dev)) |
| 9950 | return 0; |
| 9951 | |
| 9952 | flush_scheduled_work(); |
| 9953 | niu_netif_stop(np); |
| 9954 | |
| 9955 | del_timer_sync(&np->timer); |
| 9956 | |
| 9957 | spin_lock_irqsave(&np->lock, flags); |
| 9958 | niu_enable_interrupts(np, 0); |
| 9959 | spin_unlock_irqrestore(&np->lock, flags); |
| 9960 | |
| 9961 | netif_device_detach(dev); |
| 9962 | |
| 9963 | spin_lock_irqsave(&np->lock, flags); |
| 9964 | niu_stop_hw(np); |
| 9965 | spin_unlock_irqrestore(&np->lock, flags); |
| 9966 | |
| 9967 | pci_save_state(pdev); |
| 9968 | |
| 9969 | return 0; |
| 9970 | } |
| 9971 | |
| 9972 | static int niu_resume(struct pci_dev *pdev) |
| 9973 | { |
| 9974 | struct net_device *dev = pci_get_drvdata(pdev); |
| 9975 | struct niu *np = netdev_priv(dev); |
| 9976 | unsigned long flags; |
| 9977 | int err; |
| 9978 | |
| 9979 | if (!netif_running(dev)) |
| 9980 | return 0; |
| 9981 | |
| 9982 | pci_restore_state(pdev); |
| 9983 | |
| 9984 | netif_device_attach(dev); |
| 9985 | |
| 9986 | spin_lock_irqsave(&np->lock, flags); |
| 9987 | |
| 9988 | err = niu_init_hw(np); |
| 9989 | if (!err) { |
| 9990 | np->timer.expires = jiffies + HZ; |
| 9991 | add_timer(&np->timer); |
| 9992 | niu_netif_start(np); |
| 9993 | } |
| 9994 | |
| 9995 | spin_unlock_irqrestore(&np->lock, flags); |
| 9996 | |
| 9997 | return err; |
| 9998 | } |
| 9999 | |
| 10000 | static struct pci_driver niu_pci_driver = { |
| 10001 | .name = DRV_MODULE_NAME, |
| 10002 | .id_table = niu_pci_tbl, |
| 10003 | .probe = niu_pci_init_one, |
| 10004 | .remove = __devexit_p(niu_pci_remove_one), |
| 10005 | .suspend = niu_suspend, |
| 10006 | .resume = niu_resume, |
| 10007 | }; |
| 10008 | |
| 10009 | #ifdef CONFIG_SPARC64 |
| 10010 | static void *niu_phys_alloc_coherent(struct device *dev, size_t size, |
| 10011 | u64 *dma_addr, gfp_t flag) |
| 10012 | { |
| 10013 | unsigned long order = get_order(size); |
| 10014 | unsigned long page = __get_free_pages(flag, order); |
| 10015 | |
| 10016 | if (page == 0UL) |
| 10017 | return NULL; |
| 10018 | memset((char *)page, 0, PAGE_SIZE << order); |
| 10019 | *dma_addr = __pa(page); |
| 10020 | |
| 10021 | return (void *) page; |
| 10022 | } |
| 10023 | |
| 10024 | static void niu_phys_free_coherent(struct device *dev, size_t size, |
| 10025 | void *cpu_addr, u64 handle) |
| 10026 | { |
| 10027 | unsigned long order = get_order(size); |
| 10028 | |
| 10029 | free_pages((unsigned long) cpu_addr, order); |
| 10030 | } |
| 10031 | |
| 10032 | static u64 niu_phys_map_page(struct device *dev, struct page *page, |
| 10033 | unsigned long offset, size_t size, |
| 10034 | enum dma_data_direction direction) |
| 10035 | { |
| 10036 | return page_to_phys(page) + offset; |
| 10037 | } |
| 10038 | |
| 10039 | static void niu_phys_unmap_page(struct device *dev, u64 dma_address, |
| 10040 | size_t size, enum dma_data_direction direction) |
| 10041 | { |
| 10042 | /* Nothing to do. */ |
| 10043 | } |
| 10044 | |
| 10045 | static u64 niu_phys_map_single(struct device *dev, void *cpu_addr, |
| 10046 | size_t size, |
| 10047 | enum dma_data_direction direction) |
| 10048 | { |
| 10049 | return __pa(cpu_addr); |
| 10050 | } |
| 10051 | |
| 10052 | static void niu_phys_unmap_single(struct device *dev, u64 dma_address, |
| 10053 | size_t size, |
| 10054 | enum dma_data_direction direction) |
| 10055 | { |
| 10056 | /* Nothing to do. */ |
| 10057 | } |
| 10058 | |
| 10059 | static const struct niu_ops niu_phys_ops = { |
| 10060 | .alloc_coherent = niu_phys_alloc_coherent, |
| 10061 | .free_coherent = niu_phys_free_coherent, |
| 10062 | .map_page = niu_phys_map_page, |
| 10063 | .unmap_page = niu_phys_unmap_page, |
| 10064 | .map_single = niu_phys_map_single, |
| 10065 | .unmap_single = niu_phys_unmap_single, |
| 10066 | }; |
| 10067 | |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10068 | static int __devinit niu_of_probe(struct of_device *op, |
| 10069 | const struct of_device_id *match) |
| 10070 | { |
| 10071 | union niu_parent_id parent_id; |
| 10072 | struct net_device *dev; |
| 10073 | struct niu *np; |
| 10074 | const u32 *reg; |
| 10075 | int err; |
| 10076 | |
| 10077 | niu_driver_version(); |
| 10078 | |
Grant Likely | 61c7a08 | 2010-04-13 16:12:29 -0700 | [diff] [blame] | 10079 | reg = of_get_property(op->dev.of_node, "reg", NULL); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10080 | if (!reg) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 10081 | dev_err(&op->dev, "%s: No 'reg' property, aborting\n", |
Grant Likely | 61c7a08 | 2010-04-13 16:12:29 -0700 | [diff] [blame] | 10082 | op->dev.of_node->full_name); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10083 | return -ENODEV; |
| 10084 | } |
| 10085 | |
| 10086 | dev = niu_alloc_and_init(&op->dev, NULL, op, |
| 10087 | &niu_phys_ops, reg[0] & 0x1); |
| 10088 | if (!dev) { |
| 10089 | err = -ENOMEM; |
| 10090 | goto err_out; |
| 10091 | } |
| 10092 | np = netdev_priv(dev); |
| 10093 | |
| 10094 | memset(&parent_id, 0, sizeof(parent_id)); |
Grant Likely | 61c7a08 | 2010-04-13 16:12:29 -0700 | [diff] [blame] | 10095 | parent_id.of = of_get_parent(op->dev.of_node); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10096 | |
| 10097 | np->parent = niu_get_parent(np, &parent_id, |
| 10098 | PLAT_TYPE_NIU); |
| 10099 | if (!np->parent) { |
| 10100 | err = -ENOMEM; |
| 10101 | goto err_out_free_dev; |
| 10102 | } |
| 10103 | |
David S. Miller | 3cfa856 | 2010-04-22 15:48:17 -0700 | [diff] [blame] | 10104 | niu_set_basic_features(dev); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10105 | |
| 10106 | np->regs = of_ioremap(&op->resource[1], 0, |
Tobias Klauser | 6f0e013 | 2009-09-09 01:41:30 -0700 | [diff] [blame] | 10107 | resource_size(&op->resource[1]), |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10108 | "niu regs"); |
| 10109 | if (!np->regs) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 10110 | dev_err(&op->dev, "Cannot map device registers, aborting\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10111 | err = -ENOMEM; |
| 10112 | goto err_out_release_parent; |
| 10113 | } |
| 10114 | |
| 10115 | np->vir_regs_1 = of_ioremap(&op->resource[2], 0, |
Tobias Klauser | 6f0e013 | 2009-09-09 01:41:30 -0700 | [diff] [blame] | 10116 | resource_size(&op->resource[2]), |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10117 | "niu vregs-1"); |
| 10118 | if (!np->vir_regs_1) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 10119 | dev_err(&op->dev, "Cannot map device vir registers 1, aborting\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10120 | err = -ENOMEM; |
| 10121 | goto err_out_iounmap; |
| 10122 | } |
| 10123 | |
| 10124 | np->vir_regs_2 = of_ioremap(&op->resource[3], 0, |
Tobias Klauser | 6f0e013 | 2009-09-09 01:41:30 -0700 | [diff] [blame] | 10125 | resource_size(&op->resource[3]), |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10126 | "niu vregs-2"); |
| 10127 | if (!np->vir_regs_2) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 10128 | dev_err(&op->dev, "Cannot map device vir registers 2, aborting\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10129 | err = -ENOMEM; |
| 10130 | goto err_out_iounmap; |
| 10131 | } |
| 10132 | |
| 10133 | niu_assign_netdev_ops(dev); |
| 10134 | |
| 10135 | err = niu_get_invariants(np); |
| 10136 | if (err) { |
| 10137 | if (err != -ENODEV) |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 10138 | dev_err(&op->dev, "Problem fetching invariants of chip, aborting\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10139 | goto err_out_iounmap; |
| 10140 | } |
| 10141 | |
| 10142 | err = register_netdev(dev); |
| 10143 | if (err) { |
Joe Perches | f10a1f2 | 2010-02-14 22:40:39 -0800 | [diff] [blame] | 10144 | dev_err(&op->dev, "Cannot register net device, aborting\n"); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10145 | goto err_out_iounmap; |
| 10146 | } |
| 10147 | |
| 10148 | dev_set_drvdata(&op->dev, dev); |
| 10149 | |
| 10150 | niu_device_announce(np); |
| 10151 | |
| 10152 | return 0; |
| 10153 | |
| 10154 | err_out_iounmap: |
| 10155 | if (np->vir_regs_1) { |
| 10156 | of_iounmap(&op->resource[2], np->vir_regs_1, |
Tobias Klauser | 6f0e013 | 2009-09-09 01:41:30 -0700 | [diff] [blame] | 10157 | resource_size(&op->resource[2])); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10158 | np->vir_regs_1 = NULL; |
| 10159 | } |
| 10160 | |
| 10161 | if (np->vir_regs_2) { |
| 10162 | of_iounmap(&op->resource[3], np->vir_regs_2, |
Tobias Klauser | 6f0e013 | 2009-09-09 01:41:30 -0700 | [diff] [blame] | 10163 | resource_size(&op->resource[3])); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10164 | np->vir_regs_2 = NULL; |
| 10165 | } |
| 10166 | |
| 10167 | if (np->regs) { |
| 10168 | of_iounmap(&op->resource[1], np->regs, |
Tobias Klauser | 6f0e013 | 2009-09-09 01:41:30 -0700 | [diff] [blame] | 10169 | resource_size(&op->resource[1])); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10170 | np->regs = NULL; |
| 10171 | } |
| 10172 | |
| 10173 | err_out_release_parent: |
| 10174 | niu_put_parent(np); |
| 10175 | |
| 10176 | err_out_free_dev: |
| 10177 | free_netdev(dev); |
| 10178 | |
| 10179 | err_out: |
| 10180 | return err; |
| 10181 | } |
| 10182 | |
| 10183 | static int __devexit niu_of_remove(struct of_device *op) |
| 10184 | { |
| 10185 | struct net_device *dev = dev_get_drvdata(&op->dev); |
| 10186 | |
| 10187 | if (dev) { |
| 10188 | struct niu *np = netdev_priv(dev); |
| 10189 | |
| 10190 | unregister_netdev(dev); |
| 10191 | |
| 10192 | if (np->vir_regs_1) { |
| 10193 | of_iounmap(&op->resource[2], np->vir_regs_1, |
Tobias Klauser | 6f0e013 | 2009-09-09 01:41:30 -0700 | [diff] [blame] | 10194 | resource_size(&op->resource[2])); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10195 | np->vir_regs_1 = NULL; |
| 10196 | } |
| 10197 | |
| 10198 | if (np->vir_regs_2) { |
| 10199 | of_iounmap(&op->resource[3], np->vir_regs_2, |
Tobias Klauser | 6f0e013 | 2009-09-09 01:41:30 -0700 | [diff] [blame] | 10200 | resource_size(&op->resource[3])); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10201 | np->vir_regs_2 = NULL; |
| 10202 | } |
| 10203 | |
| 10204 | if (np->regs) { |
| 10205 | of_iounmap(&op->resource[1], np->regs, |
Tobias Klauser | 6f0e013 | 2009-09-09 01:41:30 -0700 | [diff] [blame] | 10206 | resource_size(&op->resource[1])); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10207 | np->regs = NULL; |
| 10208 | } |
| 10209 | |
| 10210 | niu_ldg_free(np); |
| 10211 | |
| 10212 | niu_put_parent(np); |
| 10213 | |
| 10214 | free_netdev(dev); |
| 10215 | dev_set_drvdata(&op->dev, NULL); |
| 10216 | } |
| 10217 | return 0; |
| 10218 | } |
| 10219 | |
David S. Miller | fd09831 | 2008-08-31 01:23:17 -0700 | [diff] [blame] | 10220 | static const struct of_device_id niu_match[] = { |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10221 | { |
| 10222 | .name = "network", |
| 10223 | .compatible = "SUNW,niusl", |
| 10224 | }, |
| 10225 | {}, |
| 10226 | }; |
| 10227 | MODULE_DEVICE_TABLE(of, niu_match); |
| 10228 | |
| 10229 | static struct of_platform_driver niu_of_driver = { |
Grant Likely | 4018294 | 2010-04-13 16:13:02 -0700 | [diff] [blame] | 10230 | .driver = { |
| 10231 | .name = "niu", |
| 10232 | .owner = THIS_MODULE, |
| 10233 | .of_match_table = niu_match, |
| 10234 | }, |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10235 | .probe = niu_of_probe, |
| 10236 | .remove = __devexit_p(niu_of_remove), |
| 10237 | }; |
| 10238 | |
| 10239 | #endif /* CONFIG_SPARC64 */ |
| 10240 | |
| 10241 | static int __init niu_init(void) |
| 10242 | { |
| 10243 | int err = 0; |
| 10244 | |
Olof Johansson | 8142997 | 2007-10-21 16:32:58 -0700 | [diff] [blame] | 10245 | BUILD_BUG_ON(PAGE_SIZE < 4 * 1024); |
David S. Miller | a3138df | 2007-10-09 01:54:01 -0700 | [diff] [blame] | 10246 | |
| 10247 | niu_debug = netif_msg_init(debug, NIU_MSG_DEFAULT); |
| 10248 | |
| 10249 | #ifdef CONFIG_SPARC64 |
| 10250 | err = of_register_driver(&niu_of_driver, &of_bus_type); |
| 10251 | #endif |
| 10252 | |
| 10253 | if (!err) { |
| 10254 | err = pci_register_driver(&niu_pci_driver); |
| 10255 | #ifdef CONFIG_SPARC64 |
| 10256 | if (err) |
| 10257 | of_unregister_driver(&niu_of_driver); |
| 10258 | #endif |
| 10259 | } |
| 10260 | |
| 10261 | return err; |
| 10262 | } |
| 10263 | |
| 10264 | static void __exit niu_exit(void) |
| 10265 | { |
| 10266 | pci_unregister_driver(&niu_pci_driver); |
| 10267 | #ifdef CONFIG_SPARC64 |
| 10268 | of_unregister_driver(&niu_of_driver); |
| 10269 | #endif |
| 10270 | } |
| 10271 | |
| 10272 | module_init(niu_init); |
| 10273 | module_exit(niu_exit); |