1 /* niu.c: Neptune ethernet driver.
3 * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
6 #include <linux/module.h>
7 #include <linux/init.h>
9 #include <linux/dma-mapping.h>
10 #include <linux/netdevice.h>
11 #include <linux/ethtool.h>
12 #include <linux/etherdevice.h>
13 #include <linux/platform_device.h>
14 #include <linux/delay.h>
15 #include <linux/bitops.h>
16 #include <linux/mii.h>
17 #include <linux/if_ether.h>
18 #include <linux/if_vlan.h>
21 #include <linux/ipv6.h>
22 #include <linux/log2.h>
23 #include <linux/jiffies.h>
24 #include <linux/crc32.h>
29 #include <linux/of_device.h>
34 #define DRV_MODULE_NAME "niu"
35 #define PFX DRV_MODULE_NAME ": "
36 #define DRV_MODULE_VERSION "0.7"
37 #define DRV_MODULE_RELDATE "February 18, 2008"
39 static char version[] __devinitdata =
40 DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
42 MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
43 MODULE_DESCRIPTION("NIU ethernet driver");
44 MODULE_LICENSE("GPL");
45 MODULE_VERSION(DRV_MODULE_VERSION);
47 #ifndef DMA_44BIT_MASK
48 #define DMA_44BIT_MASK 0x00000fffffffffffULL
52 static u64 readq(void __iomem *reg)
54 return (((u64)readl(reg + 0x4UL) << 32) |
58 static void writeq(u64 val, void __iomem *reg)
60 writel(val & 0xffffffff, reg);
61 writel(val >> 32, reg + 0x4UL);
65 static struct pci_device_id niu_pci_tbl[] = {
66 {PCI_DEVICE(PCI_VENDOR_ID_SUN, 0xabcd)},
70 MODULE_DEVICE_TABLE(pci, niu_pci_tbl);
72 #define NIU_TX_TIMEOUT (5 * HZ)
74 #define nr64(reg) readq(np->regs + (reg))
75 #define nw64(reg, val) writeq((val), np->regs + (reg))
77 #define nr64_mac(reg) readq(np->mac_regs + (reg))
78 #define nw64_mac(reg, val) writeq((val), np->mac_regs + (reg))
80 #define nr64_ipp(reg) readq(np->regs + np->ipp_off + (reg))
81 #define nw64_ipp(reg, val) writeq((val), np->regs + np->ipp_off + (reg))
83 #define nr64_pcs(reg) readq(np->regs + np->pcs_off + (reg))
84 #define nw64_pcs(reg, val) writeq((val), np->regs + np->pcs_off + (reg))
86 #define nr64_xpcs(reg) readq(np->regs + np->xpcs_off + (reg))
87 #define nw64_xpcs(reg, val) writeq((val), np->regs + np->xpcs_off + (reg))
89 #define NIU_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK)
92 static int debug = -1;
93 module_param(debug, int, 0);
94 MODULE_PARM_DESC(debug, "NIU debug level");
96 #define niudbg(TYPE, f, a...) \
97 do { if ((np)->msg_enable & NETIF_MSG_##TYPE) \
98 printk(KERN_DEBUG PFX f, ## a); \
101 #define niuinfo(TYPE, f, a...) \
102 do { if ((np)->msg_enable & NETIF_MSG_##TYPE) \
103 printk(KERN_INFO PFX f, ## a); \
106 #define niuwarn(TYPE, f, a...) \
107 do { if ((np)->msg_enable & NETIF_MSG_##TYPE) \
108 printk(KERN_WARNING PFX f, ## a); \
111 #define niu_lock_parent(np, flags) \
112 spin_lock_irqsave(&np->parent->lock, flags)
113 #define niu_unlock_parent(np, flags) \
114 spin_unlock_irqrestore(&np->parent->lock, flags)
116 static int __niu_wait_bits_clear_mac(struct niu *np, unsigned long reg,
117 u64 bits, int limit, int delay)
119 while (--limit >= 0) {
120 u64 val = nr64_mac(reg);
131 static int __niu_set_and_wait_clear_mac(struct niu *np, unsigned long reg,
132 u64 bits, int limit, int delay,
133 const char *reg_name)
138 err = __niu_wait_bits_clear_mac(np, reg, bits, limit, delay);
140 dev_err(np->device, PFX "%s: bits (%llx) of register %s "
141 "would not clear, val[%llx]\n",
142 np->dev->name, (unsigned long long) bits, reg_name,
143 (unsigned long long) nr64_mac(reg));
147 #define niu_set_and_wait_clear_mac(NP, REG, BITS, LIMIT, DELAY, REG_NAME) \
148 ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \
149 __niu_set_and_wait_clear_mac(NP, REG, BITS, LIMIT, DELAY, REG_NAME); \
152 static int __niu_wait_bits_clear_ipp(struct niu *np, unsigned long reg,
153 u64 bits, int limit, int delay)
155 while (--limit >= 0) {
156 u64 val = nr64_ipp(reg);
167 static int __niu_set_and_wait_clear_ipp(struct niu *np, unsigned long reg,
168 u64 bits, int limit, int delay,
169 const char *reg_name)
178 err = __niu_wait_bits_clear_ipp(np, reg, bits, limit, delay);
180 dev_err(np->device, PFX "%s: bits (%llx) of register %s "
181 "would not clear, val[%llx]\n",
182 np->dev->name, (unsigned long long) bits, reg_name,
183 (unsigned long long) nr64_ipp(reg));
187 #define niu_set_and_wait_clear_ipp(NP, REG, BITS, LIMIT, DELAY, REG_NAME) \
188 ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \
189 __niu_set_and_wait_clear_ipp(NP, REG, BITS, LIMIT, DELAY, REG_NAME); \
192 static int __niu_wait_bits_clear(struct niu *np, unsigned long reg,
193 u64 bits, int limit, int delay)
195 while (--limit >= 0) {
207 #define niu_wait_bits_clear(NP, REG, BITS, LIMIT, DELAY) \
208 ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \
209 __niu_wait_bits_clear(NP, REG, BITS, LIMIT, DELAY); \
212 static int __niu_set_and_wait_clear(struct niu *np, unsigned long reg,
213 u64 bits, int limit, int delay,
214 const char *reg_name)
219 err = __niu_wait_bits_clear(np, reg, bits, limit, delay);
221 dev_err(np->device, PFX "%s: bits (%llx) of register %s "
222 "would not clear, val[%llx]\n",
223 np->dev->name, (unsigned long long) bits, reg_name,
224 (unsigned long long) nr64(reg));
228 #define niu_set_and_wait_clear(NP, REG, BITS, LIMIT, DELAY, REG_NAME) \
229 ({ BUILD_BUG_ON(LIMIT <= 0 || DELAY < 0); \
230 __niu_set_and_wait_clear(NP, REG, BITS, LIMIT, DELAY, REG_NAME); \
233 static void niu_ldg_rearm(struct niu *np, struct niu_ldg *lp, int on)
235 u64 val = (u64) lp->timer;
238 val |= LDG_IMGMT_ARM;
240 nw64(LDG_IMGMT(lp->ldg_num), val);
243 static int niu_ldn_irq_enable(struct niu *np, int ldn, int on)
245 unsigned long mask_reg, bits;
248 if (ldn < 0 || ldn > LDN_MAX)
252 mask_reg = LD_IM0(ldn);
255 mask_reg = LD_IM1(ldn - 64);
259 val = nr64(mask_reg);
269 static int niu_enable_ldn_in_ldg(struct niu *np, struct niu_ldg *lp, int on)
271 struct niu_parent *parent = np->parent;
274 for (i = 0; i <= LDN_MAX; i++) {
277 if (parent->ldg_map[i] != lp->ldg_num)
280 err = niu_ldn_irq_enable(np, i, on);
287 static int niu_enable_interrupts(struct niu *np, int on)
291 for (i = 0; i < np->num_ldg; i++) {
292 struct niu_ldg *lp = &np->ldg[i];
295 err = niu_enable_ldn_in_ldg(np, lp, on);
299 for (i = 0; i < np->num_ldg; i++)
300 niu_ldg_rearm(np, &np->ldg[i], on);
305 static u32 phy_encode(u32 type, int port)
307 return (type << (port * 2));
310 static u32 phy_decode(u32 val, int port)
312 return (val >> (port * 2)) & PORT_TYPE_MASK;
315 static int mdio_wait(struct niu *np)
320 while (--limit > 0) {
321 val = nr64(MIF_FRAME_OUTPUT);
322 if ((val >> MIF_FRAME_OUTPUT_TA_SHIFT) & 0x1)
323 return val & MIF_FRAME_OUTPUT_DATA;
331 static int mdio_read(struct niu *np, int port, int dev, int reg)
335 nw64(MIF_FRAME_OUTPUT, MDIO_ADDR_OP(port, dev, reg));
340 nw64(MIF_FRAME_OUTPUT, MDIO_READ_OP(port, dev));
341 return mdio_wait(np);
344 static int mdio_write(struct niu *np, int port, int dev, int reg, int data)
348 nw64(MIF_FRAME_OUTPUT, MDIO_ADDR_OP(port, dev, reg));
353 nw64(MIF_FRAME_OUTPUT, MDIO_WRITE_OP(port, dev, data));
361 static int mii_read(struct niu *np, int port, int reg)
363 nw64(MIF_FRAME_OUTPUT, MII_READ_OP(port, reg));
364 return mdio_wait(np);
367 static int mii_write(struct niu *np, int port, int reg, int data)
371 nw64(MIF_FRAME_OUTPUT, MII_WRITE_OP(port, reg, data));
379 static int esr2_set_tx_cfg(struct niu *np, unsigned long channel, u32 val)
383 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
384 ESR2_TI_PLL_TX_CFG_L(channel),
387 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
388 ESR2_TI_PLL_TX_CFG_H(channel),
393 static int esr2_set_rx_cfg(struct niu *np, unsigned long channel, u32 val)
397 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
398 ESR2_TI_PLL_RX_CFG_L(channel),
401 err = mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
402 ESR2_TI_PLL_RX_CFG_H(channel),
407 /* Mode is always 10G fiber. */
408 static int serdes_init_niu(struct niu *np)
410 struct niu_link_config *lp = &np->link_config;
414 tx_cfg = (PLL_TX_CFG_ENTX | PLL_TX_CFG_SWING_1375MV);
415 rx_cfg = (PLL_RX_CFG_ENRX | PLL_RX_CFG_TERM_0P8VDDT |
416 PLL_RX_CFG_ALIGN_ENA | PLL_RX_CFG_LOS_LTHRESH |
417 PLL_RX_CFG_EQ_LP_ADAPTIVE);
419 if (lp->loopback_mode == LOOPBACK_PHY) {
420 u16 test_cfg = PLL_TEST_CFG_LOOPBACK_CML_DIS;
422 mdio_write(np, np->port, NIU_ESR2_DEV_ADDR,
423 ESR2_TI_PLL_TEST_CFG_L, test_cfg);
425 tx_cfg |= PLL_TX_CFG_ENTEST;
426 rx_cfg |= PLL_RX_CFG_ENTEST;
429 /* Initialize all 4 lanes of the SERDES. */
430 for (i = 0; i < 4; i++) {
431 int err = esr2_set_tx_cfg(np, i, tx_cfg);
436 for (i = 0; i < 4; i++) {
437 int err = esr2_set_rx_cfg(np, i, rx_cfg);
445 static int esr_read_rxtx_ctrl(struct niu *np, unsigned long chan, u32 *val)
449 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR, ESR_RXTX_CTRL_L(chan));
451 *val = (err & 0xffff);
452 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR,
453 ESR_RXTX_CTRL_H(chan));
455 *val |= ((err & 0xffff) << 16);
461 static int esr_read_glue0(struct niu *np, unsigned long chan, u32 *val)
465 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR,
466 ESR_GLUE_CTRL0_L(chan));
468 *val = (err & 0xffff);
469 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR,
470 ESR_GLUE_CTRL0_H(chan));
472 *val |= ((err & 0xffff) << 16);
479 static int esr_read_reset(struct niu *np, u32 *val)
483 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR,
484 ESR_RXTX_RESET_CTRL_L);
486 *val = (err & 0xffff);
487 err = mdio_read(np, np->port, NIU_ESR_DEV_ADDR,
488 ESR_RXTX_RESET_CTRL_H);
490 *val |= ((err & 0xffff) << 16);
497 static int esr_write_rxtx_ctrl(struct niu *np, unsigned long chan, u32 val)
501 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
502 ESR_RXTX_CTRL_L(chan), val & 0xffff);
504 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
505 ESR_RXTX_CTRL_H(chan), (val >> 16));
509 static int esr_write_glue0(struct niu *np, unsigned long chan, u32 val)
513 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
514 ESR_GLUE_CTRL0_L(chan), val & 0xffff);
516 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
517 ESR_GLUE_CTRL0_H(chan), (val >> 16));
521 static int esr_reset(struct niu *np)
526 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
527 ESR_RXTX_RESET_CTRL_L, 0x0000);
530 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
531 ESR_RXTX_RESET_CTRL_H, 0xffff);
536 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
537 ESR_RXTX_RESET_CTRL_L, 0xffff);
542 err = mdio_write(np, np->port, NIU_ESR_DEV_ADDR,
543 ESR_RXTX_RESET_CTRL_H, 0x0000);
548 err = esr_read_reset(np, &reset);
552 dev_err(np->device, PFX "Port %u ESR_RESET "
553 "did not clear [%08x]\n",
561 static int serdes_init_10g(struct niu *np)
563 struct niu_link_config *lp = &np->link_config;
564 unsigned long ctrl_reg, test_cfg_reg, i;
565 u64 ctrl_val, test_cfg_val, sig, mask, val;
570 ctrl_reg = ENET_SERDES_0_CTRL_CFG;
571 test_cfg_reg = ENET_SERDES_0_TEST_CFG;
574 ctrl_reg = ENET_SERDES_1_CTRL_CFG;
575 test_cfg_reg = ENET_SERDES_1_TEST_CFG;
581 ctrl_val = (ENET_SERDES_CTRL_SDET_0 |
582 ENET_SERDES_CTRL_SDET_1 |
583 ENET_SERDES_CTRL_SDET_2 |
584 ENET_SERDES_CTRL_SDET_3 |
585 (0x5 << ENET_SERDES_CTRL_EMPH_0_SHIFT) |
586 (0x5 << ENET_SERDES_CTRL_EMPH_1_SHIFT) |
587 (0x5 << ENET_SERDES_CTRL_EMPH_2_SHIFT) |
588 (0x5 << ENET_SERDES_CTRL_EMPH_3_SHIFT) |
589 (0x1 << ENET_SERDES_CTRL_LADJ_0_SHIFT) |
590 (0x1 << ENET_SERDES_CTRL_LADJ_1_SHIFT) |
591 (0x1 << ENET_SERDES_CTRL_LADJ_2_SHIFT) |
592 (0x1 << ENET_SERDES_CTRL_LADJ_3_SHIFT));
595 if (lp->loopback_mode == LOOPBACK_PHY) {
596 test_cfg_val |= ((ENET_TEST_MD_PAD_LOOPBACK <<
597 ENET_SERDES_TEST_MD_0_SHIFT) |
598 (ENET_TEST_MD_PAD_LOOPBACK <<
599 ENET_SERDES_TEST_MD_1_SHIFT) |
600 (ENET_TEST_MD_PAD_LOOPBACK <<
601 ENET_SERDES_TEST_MD_2_SHIFT) |
602 (ENET_TEST_MD_PAD_LOOPBACK <<
603 ENET_SERDES_TEST_MD_3_SHIFT));
606 nw64(ctrl_reg, ctrl_val);
607 nw64(test_cfg_reg, test_cfg_val);
609 /* Initialize all 4 lanes of the SERDES. */
610 for (i = 0; i < 4; i++) {
611 u32 rxtx_ctrl, glue0;
613 err = esr_read_rxtx_ctrl(np, i, &rxtx_ctrl);
616 err = esr_read_glue0(np, i, &glue0);
620 rxtx_ctrl &= ~(ESR_RXTX_CTRL_VMUXLO);
621 rxtx_ctrl |= (ESR_RXTX_CTRL_ENSTRETCH |
622 (2 << ESR_RXTX_CTRL_VMUXLO_SHIFT));
624 glue0 &= ~(ESR_GLUE_CTRL0_SRATE |
625 ESR_GLUE_CTRL0_THCNT |
626 ESR_GLUE_CTRL0_BLTIME);
627 glue0 |= (ESR_GLUE_CTRL0_RXLOSENAB |
628 (0xf << ESR_GLUE_CTRL0_SRATE_SHIFT) |
629 (0xff << ESR_GLUE_CTRL0_THCNT_SHIFT) |
630 (BLTIME_300_CYCLES <<
631 ESR_GLUE_CTRL0_BLTIME_SHIFT));
633 err = esr_write_rxtx_ctrl(np, i, rxtx_ctrl);
636 err = esr_write_glue0(np, i, glue0);
645 sig = nr64(ESR_INT_SIGNALS);
648 mask = ESR_INT_SIGNALS_P0_BITS;
649 val = (ESR_INT_SRDY0_P0 |
659 mask = ESR_INT_SIGNALS_P1_BITS;
660 val = (ESR_INT_SRDY0_P1 |
673 if ((sig & mask) != val) {
674 dev_err(np->device, PFX "Port %u signal bits [%08x] are not "
675 "[%08x]\n", np->port, (int) (sig & mask), (int) val);
682 static int serdes_init_1g(struct niu *np)
686 val = nr64(ENET_SERDES_1_PLL_CFG);
687 val &= ~ENET_SERDES_PLL_FBDIV2;
690 val |= ENET_SERDES_PLL_HRATE0;
693 val |= ENET_SERDES_PLL_HRATE1;
696 val |= ENET_SERDES_PLL_HRATE2;
699 val |= ENET_SERDES_PLL_HRATE3;
704 nw64(ENET_SERDES_1_PLL_CFG, val);
709 static int bcm8704_reset(struct niu *np)
713 err = mdio_read(np, np->phy_addr,
714 BCM8704_PHYXS_DEV_ADDR, MII_BMCR);
718 err = mdio_write(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR,
724 while (--limit >= 0) {
725 err = mdio_read(np, np->phy_addr,
726 BCM8704_PHYXS_DEV_ADDR, MII_BMCR);
729 if (!(err & BMCR_RESET))
733 dev_err(np->device, PFX "Port %u PHY will not reset "
734 "(bmcr=%04x)\n", np->port, (err & 0xffff));
740 /* When written, certain PHY registers need to be read back twice
741 * in order for the bits to settle properly.
743 static int bcm8704_user_dev3_readback(struct niu *np, int reg)
745 int err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, reg);
748 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, reg);
754 static int bcm8704_init_user_dev3(struct niu *np)
758 err = mdio_write(np, np->phy_addr,
759 BCM8704_USER_DEV3_ADDR, BCM8704_USER_CONTROL,
760 (USER_CONTROL_OPTXRST_LVL |
761 USER_CONTROL_OPBIASFLT_LVL |
762 USER_CONTROL_OBTMPFLT_LVL |
763 USER_CONTROL_OPPRFLT_LVL |
764 USER_CONTROL_OPTXFLT_LVL |
765 USER_CONTROL_OPRXLOS_LVL |
766 USER_CONTROL_OPRXFLT_LVL |
767 USER_CONTROL_OPTXON_LVL |
768 (0x3f << USER_CONTROL_RES1_SHIFT)));
772 err = mdio_write(np, np->phy_addr,
773 BCM8704_USER_DEV3_ADDR, BCM8704_USER_PMD_TX_CONTROL,
774 (USER_PMD_TX_CTL_XFP_CLKEN |
775 (1 << USER_PMD_TX_CTL_TX_DAC_TXD_SH) |
776 (2 << USER_PMD_TX_CTL_TX_DAC_TXCK_SH) |
777 USER_PMD_TX_CTL_TSCK_LPWREN));
781 err = bcm8704_user_dev3_readback(np, BCM8704_USER_CONTROL);
784 err = bcm8704_user_dev3_readback(np, BCM8704_USER_PMD_TX_CONTROL);
788 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
789 BCM8704_USER_OPT_DIGITAL_CTRL);
792 err &= ~USER_ODIG_CTRL_GPIOS;
793 err |= (0x3 << USER_ODIG_CTRL_GPIOS_SHIFT);
794 err = mdio_write(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
795 BCM8704_USER_OPT_DIGITAL_CTRL, err);
804 static int mrvl88x2011_act_led(struct niu *np, int val)
808 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR,
809 MRVL88X2011_LED_8_TO_11_CTL);
813 err &= ~MRVL88X2011_LED(MRVL88X2011_LED_ACT,MRVL88X2011_LED_CTL_MASK);
814 err |= MRVL88X2011_LED(MRVL88X2011_LED_ACT,val);
816 return mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR,
817 MRVL88X2011_LED_8_TO_11_CTL, err);
820 static int mrvl88x2011_led_blink_rate(struct niu *np, int rate)
824 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR,
825 MRVL88X2011_LED_BLINK_CTL);
827 err &= ~MRVL88X2011_LED_BLKRATE_MASK;
830 err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV2_ADDR,
831 MRVL88X2011_LED_BLINK_CTL, err);
837 static int xcvr_init_10g_mrvl88x2011(struct niu *np)
841 /* Set LED functions */
842 err = mrvl88x2011_led_blink_rate(np, MRVL88X2011_LED_BLKRATE_134MS);
847 err = mrvl88x2011_act_led(np, MRVL88X2011_LED_CTL_OFF);
851 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR,
852 MRVL88X2011_GENERAL_CTL);
856 err |= MRVL88X2011_ENA_XFPREFCLK;
858 err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR,
859 MRVL88X2011_GENERAL_CTL, err);
863 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR,
864 MRVL88X2011_PMA_PMD_CTL_1);
868 if (np->link_config.loopback_mode == LOOPBACK_MAC)
869 err |= MRVL88X2011_LOOPBACK;
871 err &= ~MRVL88X2011_LOOPBACK;
873 err = mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR,
874 MRVL88X2011_PMA_PMD_CTL_1, err);
879 return mdio_write(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR,
880 MRVL88X2011_10G_PMD_TX_DIS, MRVL88X2011_ENA_PMDTX);
883 static int xcvr_init_10g_bcm8704(struct niu *np)
885 struct niu_link_config *lp = &np->link_config;
886 u16 analog_stat0, tx_alarm_status;
889 err = bcm8704_reset(np);
893 err = bcm8704_init_user_dev3(np);
897 err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR,
901 err &= ~BMCR_LOOPBACK;
903 if (lp->loopback_mode == LOOPBACK_MAC)
904 err |= BMCR_LOOPBACK;
906 err = mdio_write(np, np->phy_addr, BCM8704_PCS_DEV_ADDR,
912 err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR,
916 pr_info(PFX "Port %u PMA_PMD(MII_STAT1000) [%04x]\n",
919 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR, 0x20);
922 pr_info(PFX "Port %u USER_DEV3(0x20) [%04x]\n",
925 err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR,
929 pr_info(PFX "Port %u PHYXS(MII_NWAYTEST) [%04x]\n",
933 /* XXX dig this out it might not be so useful XXX */
934 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
935 BCM8704_USER_ANALOG_STATUS0);
938 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
939 BCM8704_USER_ANALOG_STATUS0);
944 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
945 BCM8704_USER_TX_ALARM_STATUS);
948 err = mdio_read(np, np->phy_addr, BCM8704_USER_DEV3_ADDR,
949 BCM8704_USER_TX_ALARM_STATUS);
952 tx_alarm_status = err;
954 if (analog_stat0 != 0x03fc) {
955 if ((analog_stat0 == 0x43bc) && (tx_alarm_status != 0)) {
956 pr_info(PFX "Port %u cable not connected "
957 "or bad cable.\n", np->port);
958 } else if (analog_stat0 == 0x639c) {
959 pr_info(PFX "Port %u optical module is bad "
960 "or missing.\n", np->port);
967 static int xcvr_init_10g(struct niu *np)
972 val = nr64_mac(XMAC_CONFIG);
973 val &= ~XMAC_CONFIG_LED_POLARITY;
974 val |= XMAC_CONFIG_FORCE_LED_ON;
975 nw64_mac(XMAC_CONFIG, val);
977 /* XXX shared resource, lock parent XXX */
978 val = nr64(MIF_CONFIG);
979 val |= MIF_CONFIG_INDIRECT_MODE;
980 nw64(MIF_CONFIG, val);
982 phy_id = phy_decode(np->parent->port_phy, np->port);
983 phy_id = np->parent->phy_probe_info.phy_id[phy_id][np->port];
985 /* handle different phy types */
986 switch (phy_id & NIU_PHY_ID_MASK) {
987 case NIU_PHY_ID_MRVL88X2011:
988 err = xcvr_init_10g_mrvl88x2011(np);
991 default: /* bcom 8704 */
992 err = xcvr_init_10g_bcm8704(np);
999 static int mii_reset(struct niu *np)
1003 err = mii_write(np, np->phy_addr, MII_BMCR, BMCR_RESET);
1008 while (--limit >= 0) {
1010 err = mii_read(np, np->phy_addr, MII_BMCR);
1013 if (!(err & BMCR_RESET))
1017 dev_err(np->device, PFX "Port %u MII would not reset, "
1018 "bmcr[%04x]\n", np->port, err);
1025 static int mii_init_common(struct niu *np)
1027 struct niu_link_config *lp = &np->link_config;
1028 u16 bmcr, bmsr, adv, estat;
1031 err = mii_reset(np);
1035 err = mii_read(np, np->phy_addr, MII_BMSR);
1041 if (bmsr & BMSR_ESTATEN) {
1042 err = mii_read(np, np->phy_addr, MII_ESTATUS);
1049 err = mii_write(np, np->phy_addr, MII_BMCR, bmcr);
1053 if (lp->loopback_mode == LOOPBACK_MAC) {
1054 bmcr |= BMCR_LOOPBACK;
1055 if (lp->active_speed == SPEED_1000)
1056 bmcr |= BMCR_SPEED1000;
1057 if (lp->active_duplex == DUPLEX_FULL)
1058 bmcr |= BMCR_FULLDPLX;
1061 if (lp->loopback_mode == LOOPBACK_PHY) {
1064 aux = (BCM5464R_AUX_CTL_EXT_LB |
1065 BCM5464R_AUX_CTL_WRITE_1);
1066 err = mii_write(np, np->phy_addr, BCM5464R_AUX_CTL, aux);
1071 /* XXX configurable XXX */
1072 /* XXX for now don't advertise half-duplex or asym pause... XXX */
1073 adv = ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP;
1074 if (bmsr & BMSR_10FULL)
1075 adv |= ADVERTISE_10FULL;
1076 if (bmsr & BMSR_100FULL)
1077 adv |= ADVERTISE_100FULL;
1078 err = mii_write(np, np->phy_addr, MII_ADVERTISE, adv);
1082 if (bmsr & BMSR_ESTATEN) {
1085 if (estat & ESTATUS_1000_TFULL)
1086 ctrl1000 |= ADVERTISE_1000FULL;
1087 err = mii_write(np, np->phy_addr, MII_CTRL1000, ctrl1000);
1091 bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
1093 err = mii_write(np, np->phy_addr, MII_BMCR, bmcr);
1097 err = mii_read(np, np->phy_addr, MII_BMCR);
1100 err = mii_read(np, np->phy_addr, MII_BMSR);
1104 pr_info(PFX "Port %u after MII init bmcr[%04x] bmsr[%04x]\n",
1105 np->port, bmcr, bmsr);
1111 static int xcvr_init_1g(struct niu *np)
1115 /* XXX shared resource, lock parent XXX */
1116 val = nr64(MIF_CONFIG);
1117 val &= ~MIF_CONFIG_INDIRECT_MODE;
1118 nw64(MIF_CONFIG, val);
1120 return mii_init_common(np);
1123 static int niu_xcvr_init(struct niu *np)
1125 const struct niu_phy_ops *ops = np->phy_ops;
1130 err = ops->xcvr_init(np);
1135 static int niu_serdes_init(struct niu *np)
1137 const struct niu_phy_ops *ops = np->phy_ops;
1141 if (ops->serdes_init)
1142 err = ops->serdes_init(np);
1147 static void niu_init_xif(struct niu *);
1148 static void niu_handle_led(struct niu *, int status);
1150 static int niu_link_status_common(struct niu *np, int link_up)
1152 struct niu_link_config *lp = &np->link_config;
1153 struct net_device *dev = np->dev;
1154 unsigned long flags;
1156 if (!netif_carrier_ok(dev) && link_up) {
1157 niuinfo(LINK, "%s: Link is up at %s, %s duplex\n",
1159 (lp->active_speed == SPEED_10000 ?
1161 (lp->active_speed == SPEED_1000 ?
1163 (lp->active_speed == SPEED_100 ?
1164 "100Mbit/sec" : "10Mbit/sec"))),
1165 (lp->active_duplex == DUPLEX_FULL ?
1168 spin_lock_irqsave(&np->lock, flags);
1170 niu_handle_led(np, 1);
1171 spin_unlock_irqrestore(&np->lock, flags);
1173 netif_carrier_on(dev);
1174 } else if (netif_carrier_ok(dev) && !link_up) {
1175 niuwarn(LINK, "%s: Link is down\n", dev->name);
1176 spin_lock_irqsave(&np->lock, flags);
1177 niu_handle_led(np, 0);
1178 spin_unlock_irqrestore(&np->lock, flags);
1179 netif_carrier_off(dev);
1185 static int link_status_10g_mrvl(struct niu *np, int *link_up_p)
1187 int err, link_up, pma_status, pcs_status;
1191 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR,
1192 MRVL88X2011_10G_PMD_STATUS_2);
1196 /* Check PMA/PMD Register: 1.0001.2 == 1 */
1197 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV1_ADDR,
1198 MRVL88X2011_PMA_PMD_STATUS_1);
1202 pma_status = ((err & MRVL88X2011_LNK_STATUS_OK) ? 1 : 0);
1204 /* Check PMC Register : 3.0001.2 == 1: read twice */
1205 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR,
1206 MRVL88X2011_PMA_PMD_STATUS_1);
1210 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV3_ADDR,
1211 MRVL88X2011_PMA_PMD_STATUS_1);
1215 pcs_status = ((err & MRVL88X2011_LNK_STATUS_OK) ? 1 : 0);
1217 /* Check XGXS Register : 4.0018.[0-3,12] */
1218 err = mdio_read(np, np->phy_addr, MRVL88X2011_USER_DEV4_ADDR,
1219 MRVL88X2011_10G_XGXS_LANE_STAT);
1223 if (err == (PHYXS_XGXS_LANE_STAT_ALINGED | PHYXS_XGXS_LANE_STAT_LANE3 |
1224 PHYXS_XGXS_LANE_STAT_LANE2 | PHYXS_XGXS_LANE_STAT_LANE1 |
1225 PHYXS_XGXS_LANE_STAT_LANE0 | PHYXS_XGXS_LANE_STAT_MAGIC |
1227 link_up = (pma_status && pcs_status) ? 1 : 0;
1229 np->link_config.active_speed = SPEED_10000;
1230 np->link_config.active_duplex = DUPLEX_FULL;
1233 mrvl88x2011_act_led(np, (link_up ?
1234 MRVL88X2011_LED_CTL_PCS_ACT :
1235 MRVL88X2011_LED_CTL_OFF));
1237 *link_up_p = link_up;
1241 static int link_status_10g_bcom(struct niu *np, int *link_up_p)
1247 err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR,
1248 BCM8704_PMD_RCV_SIGDET);
1251 if (!(err & PMD_RCV_SIGDET_GLOBAL)) {
1256 err = mdio_read(np, np->phy_addr, BCM8704_PCS_DEV_ADDR,
1257 BCM8704_PCS_10G_R_STATUS);
1260 if (!(err & PCS_10G_R_STATUS_BLK_LOCK)) {
1265 err = mdio_read(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR,
1266 BCM8704_PHYXS_XGXS_LANE_STAT);
1270 if (err != (PHYXS_XGXS_LANE_STAT_ALINGED |
1271 PHYXS_XGXS_LANE_STAT_MAGIC |
1272 PHYXS_XGXS_LANE_STAT_LANE3 |
1273 PHYXS_XGXS_LANE_STAT_LANE2 |
1274 PHYXS_XGXS_LANE_STAT_LANE1 |
1275 PHYXS_XGXS_LANE_STAT_LANE0)) {
1281 np->link_config.active_speed = SPEED_10000;
1282 np->link_config.active_duplex = DUPLEX_FULL;
1286 *link_up_p = link_up;
1290 static int link_status_10g(struct niu *np, int *link_up_p)
1292 unsigned long flags;
1295 spin_lock_irqsave(&np->lock, flags);
1297 if (np->link_config.loopback_mode == LOOPBACK_DISABLED) {
1300 phy_id = phy_decode(np->parent->port_phy, np->port);
1301 phy_id = np->parent->phy_probe_info.phy_id[phy_id][np->port];
1303 /* handle different phy types */
1304 switch (phy_id & NIU_PHY_ID_MASK) {
1305 case NIU_PHY_ID_MRVL88X2011:
1306 err = link_status_10g_mrvl(np, link_up_p);
1309 default: /* bcom 8704 */
1310 err = link_status_10g_bcom(np, link_up_p);
1315 spin_unlock_irqrestore(&np->lock, flags);
1320 static int link_status_1g(struct niu *np, int *link_up_p)
1322 struct niu_link_config *lp = &np->link_config;
1323 u16 current_speed, bmsr;
1324 unsigned long flags;
1329 current_speed = SPEED_INVALID;
1330 current_duplex = DUPLEX_INVALID;
1332 spin_lock_irqsave(&np->lock, flags);
1335 if (np->link_config.loopback_mode != LOOPBACK_DISABLED)
1338 err = mii_read(np, np->phy_addr, MII_BMSR);
1343 if (bmsr & BMSR_LSTATUS) {
1344 u16 adv, lpa, common, estat;
1346 err = mii_read(np, np->phy_addr, MII_ADVERTISE);
1351 err = mii_read(np, np->phy_addr, MII_LPA);
1358 err = mii_read(np, np->phy_addr, MII_ESTATUS);
1364 if (estat & (ESTATUS_1000_TFULL | ESTATUS_1000_THALF)) {
1365 current_speed = SPEED_1000;
1366 if (estat & ESTATUS_1000_TFULL)
1367 current_duplex = DUPLEX_FULL;
1369 current_duplex = DUPLEX_HALF;
1371 if (common & ADVERTISE_100BASE4) {
1372 current_speed = SPEED_100;
1373 current_duplex = DUPLEX_HALF;
1374 } else if (common & ADVERTISE_100FULL) {
1375 current_speed = SPEED_100;
1376 current_duplex = DUPLEX_FULL;
1377 } else if (common & ADVERTISE_100HALF) {
1378 current_speed = SPEED_100;
1379 current_duplex = DUPLEX_HALF;
1380 } else if (common & ADVERTISE_10FULL) {
1381 current_speed = SPEED_10;
1382 current_duplex = DUPLEX_FULL;
1383 } else if (common & ADVERTISE_10HALF) {
1384 current_speed = SPEED_10;
1385 current_duplex = DUPLEX_HALF;
1390 lp->active_speed = current_speed;
1391 lp->active_duplex = current_duplex;
1395 spin_unlock_irqrestore(&np->lock, flags);
1397 *link_up_p = link_up;
1401 static int niu_link_status(struct niu *np, int *link_up_p)
1403 const struct niu_phy_ops *ops = np->phy_ops;
1407 if (ops->link_status)
1408 err = ops->link_status(np, link_up_p);
1413 static void niu_timer(unsigned long __opaque)
1415 struct niu *np = (struct niu *) __opaque;
1419 err = niu_link_status(np, &link_up);
1421 niu_link_status_common(np, link_up);
1423 if (netif_carrier_ok(np->dev))
1427 np->timer.expires = jiffies + off;
1429 add_timer(&np->timer);
1432 static const struct niu_phy_ops phy_ops_10g_fiber_niu = {
1433 .serdes_init = serdes_init_niu,
1434 .xcvr_init = xcvr_init_10g,
1435 .link_status = link_status_10g,
1438 static const struct niu_phy_ops phy_ops_10g_fiber = {
1439 .serdes_init = serdes_init_10g,
1440 .xcvr_init = xcvr_init_10g,
1441 .link_status = link_status_10g,
1444 static const struct niu_phy_ops phy_ops_10g_copper = {
1445 .serdes_init = serdes_init_10g,
1446 .link_status = link_status_10g, /* XXX */
1449 static const struct niu_phy_ops phy_ops_1g_fiber = {
1450 .serdes_init = serdes_init_1g,
1451 .xcvr_init = xcvr_init_1g,
1452 .link_status = link_status_1g,
1455 static const struct niu_phy_ops phy_ops_1g_copper = {
1456 .xcvr_init = xcvr_init_1g,
1457 .link_status = link_status_1g,
1460 struct niu_phy_template {
1461 const struct niu_phy_ops *ops;
1465 static const struct niu_phy_template phy_template_niu = {
1466 .ops = &phy_ops_10g_fiber_niu,
1467 .phy_addr_base = 16,
1470 static const struct niu_phy_template phy_template_10g_fiber = {
1471 .ops = &phy_ops_10g_fiber,
1475 static const struct niu_phy_template phy_template_10g_copper = {
1476 .ops = &phy_ops_10g_copper,
1477 .phy_addr_base = 10,
1480 static const struct niu_phy_template phy_template_1g_fiber = {
1481 .ops = &phy_ops_1g_fiber,
1485 static const struct niu_phy_template phy_template_1g_copper = {
1486 .ops = &phy_ops_1g_copper,
1490 static int niu_determine_phy_disposition(struct niu *np)
1492 struct niu_parent *parent = np->parent;
1493 u8 plat_type = parent->plat_type;
1494 const struct niu_phy_template *tp;
1495 u32 phy_addr_off = 0;
1497 if (plat_type == PLAT_TYPE_NIU) {
1498 tp = &phy_template_niu;
1499 phy_addr_off += np->port;
1501 switch (np->flags & (NIU_FLAGS_10G | NIU_FLAGS_FIBER)) {
1504 tp = &phy_template_1g_copper;
1505 if (plat_type == PLAT_TYPE_VF_P0)
1507 else if (plat_type == PLAT_TYPE_VF_P1)
1510 phy_addr_off += (np->port ^ 0x3);
1515 tp = &phy_template_1g_copper;
1518 case NIU_FLAGS_FIBER:
1520 tp = &phy_template_1g_fiber;
1523 case NIU_FLAGS_10G | NIU_FLAGS_FIBER:
1525 tp = &phy_template_10g_fiber;
1526 if (plat_type == PLAT_TYPE_VF_P0 ||
1527 plat_type == PLAT_TYPE_VF_P1)
1529 phy_addr_off += np->port;
1537 np->phy_ops = tp->ops;
1538 np->phy_addr = tp->phy_addr_base + phy_addr_off;
1543 static int niu_init_link(struct niu *np)
1545 struct niu_parent *parent = np->parent;
1548 if (parent->plat_type == PLAT_TYPE_NIU) {
1549 err = niu_xcvr_init(np);
1554 err = niu_serdes_init(np);
1558 err = niu_xcvr_init(np);
1560 niu_link_status(np, &ignore);
1564 static void niu_set_primary_mac(struct niu *np, unsigned char *addr)
1566 u16 reg0 = addr[4] << 8 | addr[5];
1567 u16 reg1 = addr[2] << 8 | addr[3];
1568 u16 reg2 = addr[0] << 8 | addr[1];
1570 if (np->flags & NIU_FLAGS_XMAC) {
1571 nw64_mac(XMAC_ADDR0, reg0);
1572 nw64_mac(XMAC_ADDR1, reg1);
1573 nw64_mac(XMAC_ADDR2, reg2);
1575 nw64_mac(BMAC_ADDR0, reg0);
1576 nw64_mac(BMAC_ADDR1, reg1);
1577 nw64_mac(BMAC_ADDR2, reg2);
1581 static int niu_num_alt_addr(struct niu *np)
1583 if (np->flags & NIU_FLAGS_XMAC)
1584 return XMAC_NUM_ALT_ADDR;
1586 return BMAC_NUM_ALT_ADDR;
1589 static int niu_set_alt_mac(struct niu *np, int index, unsigned char *addr)
1591 u16 reg0 = addr[4] << 8 | addr[5];
1592 u16 reg1 = addr[2] << 8 | addr[3];
1593 u16 reg2 = addr[0] << 8 | addr[1];
1595 if (index >= niu_num_alt_addr(np))
1598 if (np->flags & NIU_FLAGS_XMAC) {
1599 nw64_mac(XMAC_ALT_ADDR0(index), reg0);
1600 nw64_mac(XMAC_ALT_ADDR1(index), reg1);
1601 nw64_mac(XMAC_ALT_ADDR2(index), reg2);
1603 nw64_mac(BMAC_ALT_ADDR0(index), reg0);
1604 nw64_mac(BMAC_ALT_ADDR1(index), reg1);
1605 nw64_mac(BMAC_ALT_ADDR2(index), reg2);
1611 static int niu_enable_alt_mac(struct niu *np, int index, int on)
1616 if (index >= niu_num_alt_addr(np))
1619 if (np->flags & NIU_FLAGS_XMAC) {
1620 reg = XMAC_ADDR_CMPEN;
1623 reg = BMAC_ADDR_CMPEN;
1624 mask = 1 << (index + 1);
1627 val = nr64_mac(reg);
1637 static void __set_rdc_table_num_hw(struct niu *np, unsigned long reg,
1638 int num, int mac_pref)
1640 u64 val = nr64_mac(reg);
1641 val &= ~(HOST_INFO_MACRDCTBLN | HOST_INFO_MPR);
1644 val |= HOST_INFO_MPR;
1648 static int __set_rdc_table_num(struct niu *np,
1649 int xmac_index, int bmac_index,
1650 int rdc_table_num, int mac_pref)
1654 if (rdc_table_num & ~HOST_INFO_MACRDCTBLN)
1656 if (np->flags & NIU_FLAGS_XMAC)
1657 reg = XMAC_HOST_INFO(xmac_index);
1659 reg = BMAC_HOST_INFO(bmac_index);
1660 __set_rdc_table_num_hw(np, reg, rdc_table_num, mac_pref);
1664 static int niu_set_primary_mac_rdc_table(struct niu *np, int table_num,
1667 return __set_rdc_table_num(np, 17, 0, table_num, mac_pref);
1670 static int niu_set_multicast_mac_rdc_table(struct niu *np, int table_num,
1673 return __set_rdc_table_num(np, 16, 8, table_num, mac_pref);
1676 static int niu_set_alt_mac_rdc_table(struct niu *np, int idx,
1677 int table_num, int mac_pref)
1679 if (idx >= niu_num_alt_addr(np))
1681 return __set_rdc_table_num(np, idx, idx + 1, table_num, mac_pref);
1684 static u64 vlan_entry_set_parity(u64 reg_val)
1689 port01_mask = 0x00ff;
1690 port23_mask = 0xff00;
1692 if (hweight64(reg_val & port01_mask) & 1)
1693 reg_val |= ENET_VLAN_TBL_PARITY0;
1695 reg_val &= ~ENET_VLAN_TBL_PARITY0;
1697 if (hweight64(reg_val & port23_mask) & 1)
1698 reg_val |= ENET_VLAN_TBL_PARITY1;
1700 reg_val &= ~ENET_VLAN_TBL_PARITY1;
1705 static void vlan_tbl_write(struct niu *np, unsigned long index,
1706 int port, int vpr, int rdc_table)
1708 u64 reg_val = nr64(ENET_VLAN_TBL(index));
1710 reg_val &= ~((ENET_VLAN_TBL_VPR |
1711 ENET_VLAN_TBL_VLANRDCTBLN) <<
1712 ENET_VLAN_TBL_SHIFT(port));
1714 reg_val |= (ENET_VLAN_TBL_VPR <<
1715 ENET_VLAN_TBL_SHIFT(port));
1716 reg_val |= (rdc_table << ENET_VLAN_TBL_SHIFT(port));
1718 reg_val = vlan_entry_set_parity(reg_val);
1720 nw64(ENET_VLAN_TBL(index), reg_val);
1723 static void vlan_tbl_clear(struct niu *np)
1727 for (i = 0; i < ENET_VLAN_TBL_NUM_ENTRIES; i++)
1728 nw64(ENET_VLAN_TBL(i), 0);
1731 static int tcam_wait_bit(struct niu *np, u64 bit)
1735 while (--limit > 0) {
1736 if (nr64(TCAM_CTL) & bit)
1746 static int tcam_flush(struct niu *np, int index)
1748 nw64(TCAM_KEY_0, 0x00);
1749 nw64(TCAM_KEY_MASK_0, 0xff);
1750 nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_WRITE | index));
1752 return tcam_wait_bit(np, TCAM_CTL_STAT);
1756 static int tcam_read(struct niu *np, int index,
1757 u64 *key, u64 *mask)
1761 nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_READ | index));
1762 err = tcam_wait_bit(np, TCAM_CTL_STAT);
1764 key[0] = nr64(TCAM_KEY_0);
1765 key[1] = nr64(TCAM_KEY_1);
1766 key[2] = nr64(TCAM_KEY_2);
1767 key[3] = nr64(TCAM_KEY_3);
1768 mask[0] = nr64(TCAM_KEY_MASK_0);
1769 mask[1] = nr64(TCAM_KEY_MASK_1);
1770 mask[2] = nr64(TCAM_KEY_MASK_2);
1771 mask[3] = nr64(TCAM_KEY_MASK_3);
1777 static int tcam_write(struct niu *np, int index,
1778 u64 *key, u64 *mask)
1780 nw64(TCAM_KEY_0, key[0]);
1781 nw64(TCAM_KEY_1, key[1]);
1782 nw64(TCAM_KEY_2, key[2]);
1783 nw64(TCAM_KEY_3, key[3]);
1784 nw64(TCAM_KEY_MASK_0, mask[0]);
1785 nw64(TCAM_KEY_MASK_1, mask[1]);
1786 nw64(TCAM_KEY_MASK_2, mask[2]);
1787 nw64(TCAM_KEY_MASK_3, mask[3]);
1788 nw64(TCAM_CTL, (TCAM_CTL_RWC_TCAM_WRITE | index));
1790 return tcam_wait_bit(np, TCAM_CTL_STAT);
1794 static int tcam_assoc_read(struct niu *np, int index, u64 *data)
1798 nw64(TCAM_CTL, (TCAM_CTL_RWC_RAM_READ | index));
1799 err = tcam_wait_bit(np, TCAM_CTL_STAT);
1801 *data = nr64(TCAM_KEY_1);
1807 static int tcam_assoc_write(struct niu *np, int index, u64 assoc_data)
1809 nw64(TCAM_KEY_1, assoc_data);
1810 nw64(TCAM_CTL, (TCAM_CTL_RWC_RAM_WRITE | index));
1812 return tcam_wait_bit(np, TCAM_CTL_STAT);
1815 static void tcam_enable(struct niu *np, int on)
1817 u64 val = nr64(FFLP_CFG_1);
1820 val &= ~FFLP_CFG_1_TCAM_DIS;
1822 val |= FFLP_CFG_1_TCAM_DIS;
1823 nw64(FFLP_CFG_1, val);
1826 static void tcam_set_lat_and_ratio(struct niu *np, u64 latency, u64 ratio)
1828 u64 val = nr64(FFLP_CFG_1);
1830 val &= ~(FFLP_CFG_1_FFLPINITDONE |
1832 FFLP_CFG_1_CAMRATIO);
1833 val |= (latency << FFLP_CFG_1_CAMLAT_SHIFT);
1834 val |= (ratio << FFLP_CFG_1_CAMRATIO_SHIFT);
1835 nw64(FFLP_CFG_1, val);
1837 val = nr64(FFLP_CFG_1);
1838 val |= FFLP_CFG_1_FFLPINITDONE;
1839 nw64(FFLP_CFG_1, val);
1842 static int tcam_user_eth_class_enable(struct niu *np, unsigned long class,
1848 if (class < CLASS_CODE_ETHERTYPE1 ||
1849 class > CLASS_CODE_ETHERTYPE2)
1852 reg = L2_CLS(class - CLASS_CODE_ETHERTYPE1);
1864 static int tcam_user_eth_class_set(struct niu *np, unsigned long class,
1870 if (class < CLASS_CODE_ETHERTYPE1 ||
1871 class > CLASS_CODE_ETHERTYPE2 ||
1872 (ether_type & ~(u64)0xffff) != 0)
1875 reg = L2_CLS(class - CLASS_CODE_ETHERTYPE1);
1877 val &= ~L2_CLS_ETYPE;
1878 val |= (ether_type << L2_CLS_ETYPE_SHIFT);
1885 static int tcam_user_ip_class_enable(struct niu *np, unsigned long class,
1891 if (class < CLASS_CODE_USER_PROG1 ||
1892 class > CLASS_CODE_USER_PROG4)
1895 reg = L3_CLS(class - CLASS_CODE_USER_PROG1);
1898 val |= L3_CLS_VALID;
1900 val &= ~L3_CLS_VALID;
1907 static int tcam_user_ip_class_set(struct niu *np, unsigned long class,
1908 int ipv6, u64 protocol_id,
1909 u64 tos_mask, u64 tos_val)
1914 if (class < CLASS_CODE_USER_PROG1 ||
1915 class > CLASS_CODE_USER_PROG4 ||
1916 (protocol_id & ~(u64)0xff) != 0 ||
1917 (tos_mask & ~(u64)0xff) != 0 ||
1918 (tos_val & ~(u64)0xff) != 0)
1921 reg = L3_CLS(class - CLASS_CODE_USER_PROG1);
1923 val &= ~(L3_CLS_IPVER | L3_CLS_PID |
1924 L3_CLS_TOSMASK | L3_CLS_TOS);
1926 val |= L3_CLS_IPVER;
1927 val |= (protocol_id << L3_CLS_PID_SHIFT);
1928 val |= (tos_mask << L3_CLS_TOSMASK_SHIFT);
1929 val |= (tos_val << L3_CLS_TOS_SHIFT);
1936 static int tcam_early_init(struct niu *np)
1942 tcam_set_lat_and_ratio(np,
1943 DEFAULT_TCAM_LATENCY,
1944 DEFAULT_TCAM_ACCESS_RATIO);
1945 for (i = CLASS_CODE_ETHERTYPE1; i <= CLASS_CODE_ETHERTYPE2; i++) {
1946 err = tcam_user_eth_class_enable(np, i, 0);
1950 for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_USER_PROG4; i++) {
1951 err = tcam_user_ip_class_enable(np, i, 0);
1959 static int tcam_flush_all(struct niu *np)
1963 for (i = 0; i < np->parent->tcam_num_entries; i++) {
1964 int err = tcam_flush(np, i);
1971 static u64 hash_addr_regval(unsigned long index, unsigned long num_entries)
1973 return ((u64)index | (num_entries == 1 ?
1974 HASH_TBL_ADDR_AUTOINC : 0));
1978 static int hash_read(struct niu *np, unsigned long partition,
1979 unsigned long index, unsigned long num_entries,
1982 u64 val = hash_addr_regval(index, num_entries);
1985 if (partition >= FCRAM_NUM_PARTITIONS ||
1986 index + num_entries > FCRAM_SIZE)
1989 nw64(HASH_TBL_ADDR(partition), val);
1990 for (i = 0; i < num_entries; i++)
1991 data[i] = nr64(HASH_TBL_DATA(partition));
1997 static int hash_write(struct niu *np, unsigned long partition,
1998 unsigned long index, unsigned long num_entries,
2001 u64 val = hash_addr_regval(index, num_entries);
2004 if (partition >= FCRAM_NUM_PARTITIONS ||
2005 index + (num_entries * 8) > FCRAM_SIZE)
2008 nw64(HASH_TBL_ADDR(partition), val);
2009 for (i = 0; i < num_entries; i++)
2010 nw64(HASH_TBL_DATA(partition), data[i]);
2015 static void fflp_reset(struct niu *np)
2019 nw64(FFLP_CFG_1, FFLP_CFG_1_PIO_FIO_RST);
2021 nw64(FFLP_CFG_1, 0);
2023 val = FFLP_CFG_1_FCRAMOUTDR_NORMAL | FFLP_CFG_1_FFLPINITDONE;
2024 nw64(FFLP_CFG_1, val);
2027 static void fflp_set_timings(struct niu *np)
2029 u64 val = nr64(FFLP_CFG_1);
2031 val &= ~FFLP_CFG_1_FFLPINITDONE;
2032 val |= (DEFAULT_FCRAMRATIO << FFLP_CFG_1_FCRAMRATIO_SHIFT);
2033 nw64(FFLP_CFG_1, val);
2035 val = nr64(FFLP_CFG_1);
2036 val |= FFLP_CFG_1_FFLPINITDONE;
2037 nw64(FFLP_CFG_1, val);
2039 val = nr64(FCRAM_REF_TMR);
2040 val &= ~(FCRAM_REF_TMR_MAX | FCRAM_REF_TMR_MIN);
2041 val |= (DEFAULT_FCRAM_REFRESH_MAX << FCRAM_REF_TMR_MAX_SHIFT);
2042 val |= (DEFAULT_FCRAM_REFRESH_MIN << FCRAM_REF_TMR_MIN_SHIFT);
2043 nw64(FCRAM_REF_TMR, val);
2046 static int fflp_set_partition(struct niu *np, u64 partition,
2047 u64 mask, u64 base, int enable)
2052 if (partition >= FCRAM_NUM_PARTITIONS ||
2053 (mask & ~(u64)0x1f) != 0 ||
2054 (base & ~(u64)0x1f) != 0)
2057 reg = FLW_PRT_SEL(partition);
2060 val &= ~(FLW_PRT_SEL_EXT | FLW_PRT_SEL_MASK | FLW_PRT_SEL_BASE);
2061 val |= (mask << FLW_PRT_SEL_MASK_SHIFT);
2062 val |= (base << FLW_PRT_SEL_BASE_SHIFT);
2064 val |= FLW_PRT_SEL_EXT;
2070 static int fflp_disable_all_partitions(struct niu *np)
2074 for (i = 0; i < FCRAM_NUM_PARTITIONS; i++) {
2075 int err = fflp_set_partition(np, 0, 0, 0, 0);
2082 static void fflp_llcsnap_enable(struct niu *np, int on)
2084 u64 val = nr64(FFLP_CFG_1);
2087 val |= FFLP_CFG_1_LLCSNAP;
2089 val &= ~FFLP_CFG_1_LLCSNAP;
2090 nw64(FFLP_CFG_1, val);
2093 static void fflp_errors_enable(struct niu *np, int on)
2095 u64 val = nr64(FFLP_CFG_1);
2098 val &= ~FFLP_CFG_1_ERRORDIS;
2100 val |= FFLP_CFG_1_ERRORDIS;
2101 nw64(FFLP_CFG_1, val);
2104 static int fflp_hash_clear(struct niu *np)
2106 struct fcram_hash_ipv4 ent;
2109 /* IPV4 hash entry with valid bit clear, rest is don't care. */
2110 memset(&ent, 0, sizeof(ent));
2111 ent.header = HASH_HEADER_EXT;
2113 for (i = 0; i < FCRAM_SIZE; i += sizeof(ent)) {
2114 int err = hash_write(np, 0, i, 1, (u64 *) &ent);
2121 static int fflp_early_init(struct niu *np)
2123 struct niu_parent *parent;
2124 unsigned long flags;
2127 niu_lock_parent(np, flags);
2129 parent = np->parent;
2131 if (!(parent->flags & PARENT_FLGS_CLS_HWINIT)) {
2132 niudbg(PROBE, "fflp_early_init: Initting hw on port %u\n",
2134 if (np->parent->plat_type != PLAT_TYPE_NIU) {
2136 fflp_set_timings(np);
2137 err = fflp_disable_all_partitions(np);
2139 niudbg(PROBE, "fflp_disable_all_partitions "
2140 "failed, err=%d\n", err);
2145 err = tcam_early_init(np);
2147 niudbg(PROBE, "tcam_early_init failed, err=%d\n",
2151 fflp_llcsnap_enable(np, 1);
2152 fflp_errors_enable(np, 0);
2156 err = tcam_flush_all(np);
2158 niudbg(PROBE, "tcam_flush_all failed, err=%d\n",
2162 if (np->parent->plat_type != PLAT_TYPE_NIU) {
2163 err = fflp_hash_clear(np);
2165 niudbg(PROBE, "fflp_hash_clear failed, "
2173 niudbg(PROBE, "fflp_early_init: Success\n");
2174 parent->flags |= PARENT_FLGS_CLS_HWINIT;
2177 niu_unlock_parent(np, flags);
2181 static int niu_set_flow_key(struct niu *np, unsigned long class_code, u64 key)
2183 if (class_code < CLASS_CODE_USER_PROG1 ||
2184 class_code > CLASS_CODE_SCTP_IPV6)
2187 nw64(FLOW_KEY(class_code - CLASS_CODE_USER_PROG1), key);
2191 static int niu_set_tcam_key(struct niu *np, unsigned long class_code, u64 key)
2193 if (class_code < CLASS_CODE_USER_PROG1 ||
2194 class_code > CLASS_CODE_SCTP_IPV6)
2197 nw64(TCAM_KEY(class_code - CLASS_CODE_USER_PROG1), key);
2201 static void niu_rx_skb_append(struct sk_buff *skb, struct page *page,
2202 u32 offset, u32 size)
2204 int i = skb_shinfo(skb)->nr_frags;
2205 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2208 frag->page_offset = offset;
2212 skb->data_len += size;
2213 skb->truesize += size;
2215 skb_shinfo(skb)->nr_frags = i + 1;
2218 static unsigned int niu_hash_rxaddr(struct rx_ring_info *rp, u64 a)
2221 a ^= (a >> ilog2(MAX_RBR_RING_SIZE));
2223 return (a & (MAX_RBR_RING_SIZE - 1));
2226 static struct page *niu_find_rxpage(struct rx_ring_info *rp, u64 addr,
2227 struct page ***link)
2229 unsigned int h = niu_hash_rxaddr(rp, addr);
2230 struct page *p, **pp;
2233 pp = &rp->rxhash[h];
2234 for (; (p = *pp) != NULL; pp = (struct page **) &p->mapping) {
2235 if (p->index == addr) {
2244 static void niu_hash_page(struct rx_ring_info *rp, struct page *page, u64 base)
2246 unsigned int h = niu_hash_rxaddr(rp, base);
2249 page->mapping = (struct address_space *) rp->rxhash[h];
2250 rp->rxhash[h] = page;
2253 static int niu_rbr_add_page(struct niu *np, struct rx_ring_info *rp,
2254 gfp_t mask, int start_index)
2260 page = alloc_page(mask);
2264 addr = np->ops->map_page(np->device, page, 0,
2265 PAGE_SIZE, DMA_FROM_DEVICE);
2267 niu_hash_page(rp, page, addr);
2268 if (rp->rbr_blocks_per_page > 1)
2269 atomic_add(rp->rbr_blocks_per_page - 1,
2270 &compound_head(page)->_count);
2272 for (i = 0; i < rp->rbr_blocks_per_page; i++) {
2273 __le32 *rbr = &rp->rbr[start_index + i];
2275 *rbr = cpu_to_le32(addr >> RBR_DESCR_ADDR_SHIFT);
2276 addr += rp->rbr_block_size;
2282 static void niu_rbr_refill(struct niu *np, struct rx_ring_info *rp, gfp_t mask)
2284 int index = rp->rbr_index;
2287 if ((rp->rbr_pending % rp->rbr_blocks_per_page) == 0) {
2288 int err = niu_rbr_add_page(np, rp, mask, index);
2290 if (unlikely(err)) {
2295 rp->rbr_index += rp->rbr_blocks_per_page;
2296 BUG_ON(rp->rbr_index > rp->rbr_table_size);
2297 if (rp->rbr_index == rp->rbr_table_size)
2300 if (rp->rbr_pending >= rp->rbr_kick_thresh) {
2301 nw64(RBR_KICK(rp->rx_channel), rp->rbr_pending);
2302 rp->rbr_pending = 0;
2307 static int niu_rx_pkt_ignore(struct niu *np, struct rx_ring_info *rp)
2309 unsigned int index = rp->rcr_index;
2314 struct page *page, **link;
2320 val = le64_to_cpup(&rp->rcr[index]);
2321 addr = (val & RCR_ENTRY_PKT_BUF_ADDR) <<
2322 RCR_ENTRY_PKT_BUF_ADDR_SHIFT;
2323 page = niu_find_rxpage(rp, addr, &link);
2325 rcr_size = rp->rbr_sizes[(val & RCR_ENTRY_PKTBUFSZ) >>
2326 RCR_ENTRY_PKTBUFSZ_SHIFT];
2327 if ((page->index + PAGE_SIZE) - rcr_size == addr) {
2328 *link = (struct page *) page->mapping;
2329 np->ops->unmap_page(np->device, page->index,
2330 PAGE_SIZE, DMA_FROM_DEVICE);
2332 page->mapping = NULL;
2334 rp->rbr_refill_pending++;
2337 index = NEXT_RCR(rp, index);
2338 if (!(val & RCR_ENTRY_MULTI))
2342 rp->rcr_index = index;
2347 static int niu_process_rx_pkt(struct niu *np, struct rx_ring_info *rp)
2349 unsigned int index = rp->rcr_index;
2350 struct sk_buff *skb;
2353 skb = netdev_alloc_skb(np->dev, RX_SKB_ALLOC_SIZE);
2355 return niu_rx_pkt_ignore(np, rp);
2359 struct page *page, **link;
2360 u32 rcr_size, append_size;
2365 val = le64_to_cpup(&rp->rcr[index]);
2367 len = (val & RCR_ENTRY_L2_LEN) >>
2368 RCR_ENTRY_L2_LEN_SHIFT;
2371 addr = (val & RCR_ENTRY_PKT_BUF_ADDR) <<
2372 RCR_ENTRY_PKT_BUF_ADDR_SHIFT;
2373 page = niu_find_rxpage(rp, addr, &link);
2375 rcr_size = rp->rbr_sizes[(val & RCR_ENTRY_PKTBUFSZ) >>
2376 RCR_ENTRY_PKTBUFSZ_SHIFT];
2378 off = addr & ~PAGE_MASK;
2379 append_size = rcr_size;
2386 ptype = (val >> RCR_ENTRY_PKT_TYPE_SHIFT);
2387 if ((ptype == RCR_PKT_TYPE_TCP ||
2388 ptype == RCR_PKT_TYPE_UDP) &&
2389 !(val & (RCR_ENTRY_NOPORT |
2391 skb->ip_summed = CHECKSUM_UNNECESSARY;
2393 skb->ip_summed = CHECKSUM_NONE;
2395 if (!(val & RCR_ENTRY_MULTI))
2396 append_size = len - skb->len;
2398 niu_rx_skb_append(skb, page, off, append_size);
2399 if ((page->index + rp->rbr_block_size) - rcr_size == addr) {
2400 *link = (struct page *) page->mapping;
2401 np->ops->unmap_page(np->device, page->index,
2402 PAGE_SIZE, DMA_FROM_DEVICE);
2404 page->mapping = NULL;
2405 rp->rbr_refill_pending++;
2409 index = NEXT_RCR(rp, index);
2410 if (!(val & RCR_ENTRY_MULTI))
2414 rp->rcr_index = index;
2416 skb_reserve(skb, NET_IP_ALIGN);
2417 __pskb_pull_tail(skb, min(len, NIU_RXPULL_MAX));
2420 rp->rx_bytes += skb->len;
2422 skb->protocol = eth_type_trans(skb, np->dev);
2423 netif_receive_skb(skb);
2425 np->dev->last_rx = jiffies;
2430 static int niu_rbr_fill(struct niu *np, struct rx_ring_info *rp, gfp_t mask)
2432 int blocks_per_page = rp->rbr_blocks_per_page;
2433 int err, index = rp->rbr_index;
2436 while (index < (rp->rbr_table_size - blocks_per_page)) {
2437 err = niu_rbr_add_page(np, rp, mask, index);
2441 index += blocks_per_page;
2444 rp->rbr_index = index;
2448 static void niu_rbr_free(struct niu *np, struct rx_ring_info *rp)
2452 for (i = 0; i < MAX_RBR_RING_SIZE; i++) {
2455 page = rp->rxhash[i];
2457 struct page *next = (struct page *) page->mapping;
2458 u64 base = page->index;
2460 np->ops->unmap_page(np->device, base, PAGE_SIZE,
2463 page->mapping = NULL;
2471 for (i = 0; i < rp->rbr_table_size; i++)
2472 rp->rbr[i] = cpu_to_le32(0);
2476 static int release_tx_packet(struct niu *np, struct tx_ring_info *rp, int idx)
2478 struct tx_buff_info *tb = &rp->tx_buffs[idx];
2479 struct sk_buff *skb = tb->skb;
2480 struct tx_pkt_hdr *tp;
2484 tp = (struct tx_pkt_hdr *) skb->data;
2485 tx_flags = le64_to_cpup(&tp->flags);
2488 rp->tx_bytes += (((tx_flags & TXHDR_LEN) >> TXHDR_LEN_SHIFT) -
2489 ((tx_flags & TXHDR_PAD) / 2));
2491 len = skb_headlen(skb);
2492 np->ops->unmap_single(np->device, tb->mapping,
2493 len, DMA_TO_DEVICE);
2495 if (le64_to_cpu(rp->descr[idx]) & TX_DESC_MARK)
2500 idx = NEXT_TX(rp, idx);
2501 len -= MAX_TX_DESC_LEN;
2504 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
2505 tb = &rp->tx_buffs[idx];
2506 BUG_ON(tb->skb != NULL);
2507 np->ops->unmap_page(np->device, tb->mapping,
2508 skb_shinfo(skb)->frags[i].size,
2510 idx = NEXT_TX(rp, idx);
2518 #define NIU_TX_WAKEUP_THRESH(rp) ((rp)->pending / 4)
2520 static void niu_tx_work(struct niu *np, struct tx_ring_info *rp)
2527 if (unlikely(!(cs & (TX_CS_MK | TX_CS_MMK))))
2530 tmp = pkt_cnt = (cs & TX_CS_PKT_CNT) >> TX_CS_PKT_CNT_SHIFT;
2531 pkt_cnt = (pkt_cnt - rp->last_pkt_cnt) &
2532 (TX_CS_PKT_CNT >> TX_CS_PKT_CNT_SHIFT);
2534 rp->last_pkt_cnt = tmp;
2538 niudbg(TX_DONE, "%s: niu_tx_work() pkt_cnt[%u] cons[%d]\n",
2539 np->dev->name, pkt_cnt, cons);
2542 cons = release_tx_packet(np, rp, cons);
2548 if (unlikely(netif_queue_stopped(np->dev) &&
2549 (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp)))) {
2550 netif_tx_lock(np->dev);
2551 if (netif_queue_stopped(np->dev) &&
2552 (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp)))
2553 netif_wake_queue(np->dev);
2554 netif_tx_unlock(np->dev);
2558 static int niu_rx_work(struct niu *np, struct rx_ring_info *rp, int budget)
2560 int qlen, rcr_done = 0, work_done = 0;
2561 struct rxdma_mailbox *mbox = rp->mbox;
2565 stat = nr64(RX_DMA_CTL_STAT(rp->rx_channel));
2566 qlen = nr64(RCRSTAT_A(rp->rx_channel)) & RCRSTAT_A_QLEN;
2568 stat = le64_to_cpup(&mbox->rx_dma_ctl_stat);
2569 qlen = (le64_to_cpup(&mbox->rcrstat_a) & RCRSTAT_A_QLEN);
2571 mbox->rx_dma_ctl_stat = 0;
2572 mbox->rcrstat_a = 0;
2574 niudbg(RX_STATUS, "%s: niu_rx_work(chan[%d]), stat[%llx] qlen=%d\n",
2575 np->dev->name, rp->rx_channel, (unsigned long long) stat, qlen);
2577 rcr_done = work_done = 0;
2578 qlen = min(qlen, budget);
2579 while (work_done < qlen) {
2580 rcr_done += niu_process_rx_pkt(np, rp);
2584 if (rp->rbr_refill_pending >= rp->rbr_kick_thresh) {
2587 for (i = 0; i < rp->rbr_refill_pending; i++)
2588 niu_rbr_refill(np, rp, GFP_ATOMIC);
2589 rp->rbr_refill_pending = 0;
2592 stat = (RX_DMA_CTL_STAT_MEX |
2593 ((u64)work_done << RX_DMA_CTL_STAT_PKTREAD_SHIFT) |
2594 ((u64)rcr_done << RX_DMA_CTL_STAT_PTRREAD_SHIFT));
2596 nw64(RX_DMA_CTL_STAT(rp->rx_channel), stat);
2601 static int niu_poll_core(struct niu *np, struct niu_ldg *lp, int budget)
2604 u32 tx_vec = (v0 >> 32);
2605 u32 rx_vec = (v0 & 0xffffffff);
2606 int i, work_done = 0;
2608 niudbg(INTR, "%s: niu_poll_core() v0[%016llx]\n",
2609 np->dev->name, (unsigned long long) v0);
2611 for (i = 0; i < np->num_tx_rings; i++) {
2612 struct tx_ring_info *rp = &np->tx_rings[i];
2613 if (tx_vec & (1 << rp->tx_channel))
2614 niu_tx_work(np, rp);
2615 nw64(LD_IM0(LDN_TXDMA(rp->tx_channel)), 0);
2618 for (i = 0; i < np->num_rx_rings; i++) {
2619 struct rx_ring_info *rp = &np->rx_rings[i];
2621 if (rx_vec & (1 << rp->rx_channel)) {
2624 this_work_done = niu_rx_work(np, rp,
2627 budget -= this_work_done;
2628 work_done += this_work_done;
2630 nw64(LD_IM0(LDN_RXDMA(rp->rx_channel)), 0);
2636 static int niu_poll(struct napi_struct *napi, int budget)
2638 struct niu_ldg *lp = container_of(napi, struct niu_ldg, napi);
2639 struct niu *np = lp->np;
2642 work_done = niu_poll_core(np, lp, budget);
2644 if (work_done < budget) {
2645 netif_rx_complete(np->dev, napi);
2646 niu_ldg_rearm(np, lp, 1);
2651 static void niu_log_rxchan_errors(struct niu *np, struct rx_ring_info *rp,
2654 dev_err(np->device, PFX "%s: RX channel %u errors ( ",
2655 np->dev->name, rp->rx_channel);
2657 if (stat & RX_DMA_CTL_STAT_RBR_TMOUT)
2658 printk("RBR_TMOUT ");
2659 if (stat & RX_DMA_CTL_STAT_RSP_CNT_ERR)
2661 if (stat & RX_DMA_CTL_STAT_BYTE_EN_BUS)
2662 printk("BYTE_EN_BUS ");
2663 if (stat & RX_DMA_CTL_STAT_RSP_DAT_ERR)
2665 if (stat & RX_DMA_CTL_STAT_RCR_ACK_ERR)
2667 if (stat & RX_DMA_CTL_STAT_RCR_SHA_PAR)
2668 printk("RCR_SHA_PAR ");
2669 if (stat & RX_DMA_CTL_STAT_RBR_PRE_PAR)
2670 printk("RBR_PRE_PAR ");
2671 if (stat & RX_DMA_CTL_STAT_CONFIG_ERR)
2673 if (stat & RX_DMA_CTL_STAT_RCRINCON)
2674 printk("RCRINCON ");
2675 if (stat & RX_DMA_CTL_STAT_RCRFULL)
2677 if (stat & RX_DMA_CTL_STAT_RBRFULL)
2679 if (stat & RX_DMA_CTL_STAT_RBRLOGPAGE)
2680 printk("RBRLOGPAGE ");
2681 if (stat & RX_DMA_CTL_STAT_CFIGLOGPAGE)
2682 printk("CFIGLOGPAGE ");
2683 if (stat & RX_DMA_CTL_STAT_DC_FIFO_ERR)
2689 static int niu_rx_error(struct niu *np, struct rx_ring_info *rp)
2691 u64 stat = nr64(RX_DMA_CTL_STAT(rp->rx_channel));
2695 if (stat & (RX_DMA_CTL_STAT_CHAN_FATAL |
2696 RX_DMA_CTL_STAT_PORT_FATAL))
2700 dev_err(np->device, PFX "%s: RX channel %u error, stat[%llx]\n",
2701 np->dev->name, rp->rx_channel,
2702 (unsigned long long) stat);
2704 niu_log_rxchan_errors(np, rp, stat);
2707 nw64(RX_DMA_CTL_STAT(rp->rx_channel),
2708 stat & RX_DMA_CTL_WRITE_CLEAR_ERRS);
2713 static void niu_log_txchan_errors(struct niu *np, struct tx_ring_info *rp,
2716 dev_err(np->device, PFX "%s: TX channel %u errors ( ",
2717 np->dev->name, rp->tx_channel);
2719 if (cs & TX_CS_MBOX_ERR)
2721 if (cs & TX_CS_PKT_SIZE_ERR)
2722 printk("PKT_SIZE ");
2723 if (cs & TX_CS_TX_RING_OFLOW)
2724 printk("TX_RING_OFLOW ");
2725 if (cs & TX_CS_PREF_BUF_PAR_ERR)
2726 printk("PREF_BUF_PAR ");
2727 if (cs & TX_CS_NACK_PREF)
2728 printk("NACK_PREF ");
2729 if (cs & TX_CS_NACK_PKT_RD)
2730 printk("NACK_PKT_RD ");
2731 if (cs & TX_CS_CONF_PART_ERR)
2732 printk("CONF_PART ");
2733 if (cs & TX_CS_PKT_PRT_ERR)
2739 static int niu_tx_error(struct niu *np, struct tx_ring_info *rp)
2743 cs = nr64(TX_CS(rp->tx_channel));
2744 logh = nr64(TX_RNG_ERR_LOGH(rp->tx_channel));
2745 logl = nr64(TX_RNG_ERR_LOGL(rp->tx_channel));
2747 dev_err(np->device, PFX "%s: TX channel %u error, "
2748 "cs[%llx] logh[%llx] logl[%llx]\n",
2749 np->dev->name, rp->tx_channel,
2750 (unsigned long long) cs,
2751 (unsigned long long) logh,
2752 (unsigned long long) logl);
2754 niu_log_txchan_errors(np, rp, cs);
2759 static int niu_mif_interrupt(struct niu *np)
2761 u64 mif_status = nr64(MIF_STATUS);
2764 if (np->flags & NIU_FLAGS_XMAC) {
2765 u64 xrxmac_stat = nr64_mac(XRXMAC_STATUS);
2767 if (xrxmac_stat & XRXMAC_STATUS_PHY_MDINT)
2771 dev_err(np->device, PFX "%s: MIF interrupt, "
2772 "stat[%llx] phy_mdint(%d)\n",
2773 np->dev->name, (unsigned long long) mif_status, phy_mdint);
2778 static void niu_xmac_interrupt(struct niu *np)
2780 struct niu_xmac_stats *mp = &np->mac_stats.xmac;
2783 val = nr64_mac(XTXMAC_STATUS);
2784 if (val & XTXMAC_STATUS_FRAME_CNT_EXP)
2785 mp->tx_frames += TXMAC_FRM_CNT_COUNT;
2786 if (val & XTXMAC_STATUS_BYTE_CNT_EXP)
2787 mp->tx_bytes += TXMAC_BYTE_CNT_COUNT;
2788 if (val & XTXMAC_STATUS_TXFIFO_XFR_ERR)
2789 mp->tx_fifo_errors++;
2790 if (val & XTXMAC_STATUS_TXMAC_OFLOW)
2791 mp->tx_overflow_errors++;
2792 if (val & XTXMAC_STATUS_MAX_PSIZE_ERR)
2793 mp->tx_max_pkt_size_errors++;
2794 if (val & XTXMAC_STATUS_TXMAC_UFLOW)
2795 mp->tx_underflow_errors++;
2797 val = nr64_mac(XRXMAC_STATUS);
2798 if (val & XRXMAC_STATUS_LCL_FLT_STATUS)
2799 mp->rx_local_faults++;
2800 if (val & XRXMAC_STATUS_RFLT_DET)
2801 mp->rx_remote_faults++;
2802 if (val & XRXMAC_STATUS_LFLT_CNT_EXP)
2803 mp->rx_link_faults += LINK_FAULT_CNT_COUNT;
2804 if (val & XRXMAC_STATUS_ALIGNERR_CNT_EXP)
2805 mp->rx_align_errors += RXMAC_ALIGN_ERR_CNT_COUNT;
2806 if (val & XRXMAC_STATUS_RXFRAG_CNT_EXP)
2807 mp->rx_frags += RXMAC_FRAG_CNT_COUNT;
2808 if (val & XRXMAC_STATUS_RXMULTF_CNT_EXP)
2809 mp->rx_mcasts += RXMAC_MC_FRM_CNT_COUNT;
2810 if (val & XRXMAC_STATUS_RXBCAST_CNT_EXP)
2811 mp->rx_bcasts += RXMAC_BC_FRM_CNT_COUNT;
2812 if (val & XRXMAC_STATUS_RXBCAST_CNT_EXP)
2813 mp->rx_bcasts += RXMAC_BC_FRM_CNT_COUNT;
2814 if (val & XRXMAC_STATUS_RXHIST1_CNT_EXP)
2815 mp->rx_hist_cnt1 += RXMAC_HIST_CNT1_COUNT;
2816 if (val & XRXMAC_STATUS_RXHIST2_CNT_EXP)
2817 mp->rx_hist_cnt2 += RXMAC_HIST_CNT2_COUNT;
2818 if (val & XRXMAC_STATUS_RXHIST3_CNT_EXP)
2819 mp->rx_hist_cnt3 += RXMAC_HIST_CNT3_COUNT;
2820 if (val & XRXMAC_STATUS_RXHIST4_CNT_EXP)
2821 mp->rx_hist_cnt4 += RXMAC_HIST_CNT4_COUNT;
2822 if (val & XRXMAC_STATUS_RXHIST5_CNT_EXP)
2823 mp->rx_hist_cnt5 += RXMAC_HIST_CNT5_COUNT;
2824 if (val & XRXMAC_STATUS_RXHIST6_CNT_EXP)
2825 mp->rx_hist_cnt6 += RXMAC_HIST_CNT6_COUNT;
2826 if (val & XRXMAC_STATUS_RXHIST7_CNT_EXP)
2827 mp->rx_hist_cnt7 += RXMAC_HIST_CNT7_COUNT;
2828 if (val & XRXMAC_STAT_MSK_RXOCTET_CNT_EXP)
2829 mp->rx_octets += RXMAC_BT_CNT_COUNT;
2830 if (val & XRXMAC_STATUS_CVIOLERR_CNT_EXP)
2831 mp->rx_code_violations += RXMAC_CD_VIO_CNT_COUNT;
2832 if (val & XRXMAC_STATUS_LENERR_CNT_EXP)
2833 mp->rx_len_errors += RXMAC_MPSZER_CNT_COUNT;
2834 if (val & XRXMAC_STATUS_CRCERR_CNT_EXP)
2835 mp->rx_crc_errors += RXMAC_CRC_ER_CNT_COUNT;
2836 if (val & XRXMAC_STATUS_RXUFLOW)
2837 mp->rx_underflows++;
2838 if (val & XRXMAC_STATUS_RXOFLOW)
2841 val = nr64_mac(XMAC_FC_STAT);
2842 if (val & XMAC_FC_STAT_TX_MAC_NPAUSE)
2843 mp->pause_off_state++;
2844 if (val & XMAC_FC_STAT_TX_MAC_PAUSE)
2845 mp->pause_on_state++;
2846 if (val & XMAC_FC_STAT_RX_MAC_RPAUSE)
2847 mp->pause_received++;
2850 static void niu_bmac_interrupt(struct niu *np)
2852 struct niu_bmac_stats *mp = &np->mac_stats.bmac;
2855 val = nr64_mac(BTXMAC_STATUS);
2856 if (val & BTXMAC_STATUS_UNDERRUN)
2857 mp->tx_underflow_errors++;
2858 if (val & BTXMAC_STATUS_MAX_PKT_ERR)
2859 mp->tx_max_pkt_size_errors++;
2860 if (val & BTXMAC_STATUS_BYTE_CNT_EXP)
2861 mp->tx_bytes += BTXMAC_BYTE_CNT_COUNT;
2862 if (val & BTXMAC_STATUS_FRAME_CNT_EXP)
2863 mp->tx_frames += BTXMAC_FRM_CNT_COUNT;
2865 val = nr64_mac(BRXMAC_STATUS);
2866 if (val & BRXMAC_STATUS_OVERFLOW)
2868 if (val & BRXMAC_STATUS_FRAME_CNT_EXP)
2869 mp->rx_frames += BRXMAC_FRAME_CNT_COUNT;
2870 if (val & BRXMAC_STATUS_ALIGN_ERR_EXP)
2871 mp->rx_align_errors += BRXMAC_ALIGN_ERR_CNT_COUNT;
2872 if (val & BRXMAC_STATUS_CRC_ERR_EXP)
2873 mp->rx_crc_errors += BRXMAC_ALIGN_ERR_CNT_COUNT;
2874 if (val & BRXMAC_STATUS_LEN_ERR_EXP)
2875 mp->rx_len_errors += BRXMAC_CODE_VIOL_ERR_CNT_COUNT;
2877 val = nr64_mac(BMAC_CTRL_STATUS);
2878 if (val & BMAC_CTRL_STATUS_NOPAUSE)
2879 mp->pause_off_state++;
2880 if (val & BMAC_CTRL_STATUS_PAUSE)
2881 mp->pause_on_state++;
2882 if (val & BMAC_CTRL_STATUS_PAUSE_RECV)
2883 mp->pause_received++;
2886 static int niu_mac_interrupt(struct niu *np)
2888 if (np->flags & NIU_FLAGS_XMAC)
2889 niu_xmac_interrupt(np);
2891 niu_bmac_interrupt(np);
2896 static void niu_log_device_error(struct niu *np, u64 stat)
2898 dev_err(np->device, PFX "%s: Core device errors ( ",
2901 if (stat & SYS_ERR_MASK_META2)
2903 if (stat & SYS_ERR_MASK_META1)
2905 if (stat & SYS_ERR_MASK_PEU)
2907 if (stat & SYS_ERR_MASK_TXC)
2909 if (stat & SYS_ERR_MASK_RDMC)
2911 if (stat & SYS_ERR_MASK_TDMC)
2913 if (stat & SYS_ERR_MASK_ZCP)
2915 if (stat & SYS_ERR_MASK_FFLP)
2917 if (stat & SYS_ERR_MASK_IPP)
2919 if (stat & SYS_ERR_MASK_MAC)
2921 if (stat & SYS_ERR_MASK_SMX)
2927 static int niu_device_error(struct niu *np)
2929 u64 stat = nr64(SYS_ERR_STAT);
2931 dev_err(np->device, PFX "%s: Core device error, stat[%llx]\n",
2932 np->dev->name, (unsigned long long) stat);
2934 niu_log_device_error(np, stat);
2939 static int niu_slowpath_interrupt(struct niu *np, struct niu_ldg *lp,
2940 u64 v0, u64 v1, u64 v2)
2949 if (v1 & 0x00000000ffffffffULL) {
2950 u32 rx_vec = (v1 & 0xffffffff);
2952 for (i = 0; i < np->num_rx_rings; i++) {
2953 struct rx_ring_info *rp = &np->rx_rings[i];
2955 if (rx_vec & (1 << rp->rx_channel)) {
2956 int r = niu_rx_error(np, rp);
2961 nw64(RX_DMA_CTL_STAT(rp->rx_channel),
2962 RX_DMA_CTL_STAT_MEX);
2967 if (v1 & 0x7fffffff00000000ULL) {
2968 u32 tx_vec = (v1 >> 32) & 0x7fffffff;
2970 for (i = 0; i < np->num_tx_rings; i++) {
2971 struct tx_ring_info *rp = &np->tx_rings[i];
2973 if (tx_vec & (1 << rp->tx_channel)) {
2974 int r = niu_tx_error(np, rp);
2980 if ((v0 | v1) & 0x8000000000000000ULL) {
2981 int r = niu_mif_interrupt(np);
2987 int r = niu_mac_interrupt(np);
2992 int r = niu_device_error(np);
2999 niu_enable_interrupts(np, 0);
3004 static void niu_rxchan_intr(struct niu *np, struct rx_ring_info *rp,
3007 struct rxdma_mailbox *mbox = rp->mbox;
3008 u64 stat_write, stat = le64_to_cpup(&mbox->rx_dma_ctl_stat);
3010 stat_write = (RX_DMA_CTL_STAT_RCRTHRES |
3011 RX_DMA_CTL_STAT_RCRTO);
3012 nw64(RX_DMA_CTL_STAT(rp->rx_channel), stat_write);
3014 niudbg(INTR, "%s: rxchan_intr stat[%llx]\n",
3015 np->dev->name, (unsigned long long) stat);
3018 static void niu_txchan_intr(struct niu *np, struct tx_ring_info *rp,
3021 rp->tx_cs = nr64(TX_CS(rp->tx_channel));
3023 niudbg(INTR, "%s: txchan_intr cs[%llx]\n",
3024 np->dev->name, (unsigned long long) rp->tx_cs);
3027 static void __niu_fastpath_interrupt(struct niu *np, int ldg, u64 v0)
3029 struct niu_parent *parent = np->parent;
3033 tx_vec = (v0 >> 32);
3034 rx_vec = (v0 & 0xffffffff);
3036 for (i = 0; i < np->num_rx_rings; i++) {
3037 struct rx_ring_info *rp = &np->rx_rings[i];
3038 int ldn = LDN_RXDMA(rp->rx_channel);
3040 if (parent->ldg_map[ldn] != ldg)
3043 nw64(LD_IM0(ldn), LD_IM0_MASK);
3044 if (rx_vec & (1 << rp->rx_channel))
3045 niu_rxchan_intr(np, rp, ldn);
3048 for (i = 0; i < np->num_tx_rings; i++) {
3049 struct tx_ring_info *rp = &np->tx_rings[i];
3050 int ldn = LDN_TXDMA(rp->tx_channel);
3052 if (parent->ldg_map[ldn] != ldg)
3055 nw64(LD_IM0(ldn), LD_IM0_MASK);
3056 if (tx_vec & (1 << rp->tx_channel))
3057 niu_txchan_intr(np, rp, ldn);
3061 static void niu_schedule_napi(struct niu *np, struct niu_ldg *lp,
3062 u64 v0, u64 v1, u64 v2)
3064 if (likely(netif_rx_schedule_prep(np->dev, &lp->napi))) {
3068 __niu_fastpath_interrupt(np, lp->ldg_num, v0);
3069 __netif_rx_schedule(np->dev, &lp->napi);
3073 static irqreturn_t niu_interrupt(int irq, void *dev_id)
3075 struct niu_ldg *lp = dev_id;
3076 struct niu *np = lp->np;
3077 int ldg = lp->ldg_num;
3078 unsigned long flags;
3081 if (netif_msg_intr(np))
3082 printk(KERN_DEBUG PFX "niu_interrupt() ldg[%p](%d) ",
3085 spin_lock_irqsave(&np->lock, flags);
3087 v0 = nr64(LDSV0(ldg));
3088 v1 = nr64(LDSV1(ldg));
3089 v2 = nr64(LDSV2(ldg));
3091 if (netif_msg_intr(np))
3092 printk("v0[%llx] v1[%llx] v2[%llx]\n",
3093 (unsigned long long) v0,
3094 (unsigned long long) v1,
3095 (unsigned long long) v2);
3097 if (unlikely(!v0 && !v1 && !v2)) {
3098 spin_unlock_irqrestore(&np->lock, flags);
3102 if (unlikely((v0 & ((u64)1 << LDN_MIF)) || v1 || v2)) {
3103 int err = niu_slowpath_interrupt(np, lp, v0, v1, v2);
3107 if (likely(v0 & ~((u64)1 << LDN_MIF)))
3108 niu_schedule_napi(np, lp, v0, v1, v2);
3110 niu_ldg_rearm(np, lp, 1);
3112 spin_unlock_irqrestore(&np->lock, flags);
3117 static void niu_free_rx_ring_info(struct niu *np, struct rx_ring_info *rp)
3120 np->ops->free_coherent(np->device,
3121 sizeof(struct rxdma_mailbox),
3122 rp->mbox, rp->mbox_dma);
3126 np->ops->free_coherent(np->device,
3127 MAX_RCR_RING_SIZE * sizeof(__le64),
3128 rp->rcr, rp->rcr_dma);
3130 rp->rcr_table_size = 0;
3134 niu_rbr_free(np, rp);
3136 np->ops->free_coherent(np->device,
3137 MAX_RBR_RING_SIZE * sizeof(__le32),
3138 rp->rbr, rp->rbr_dma);
3140 rp->rbr_table_size = 0;
3147 static void niu_free_tx_ring_info(struct niu *np, struct tx_ring_info *rp)
3150 np->ops->free_coherent(np->device,
3151 sizeof(struct txdma_mailbox),
3152 rp->mbox, rp->mbox_dma);
3158 for (i = 0; i < MAX_TX_RING_SIZE; i++) {
3159 if (rp->tx_buffs[i].skb)
3160 (void) release_tx_packet(np, rp, i);
3163 np->ops->free_coherent(np->device,
3164 MAX_TX_RING_SIZE * sizeof(__le64),
3165 rp->descr, rp->descr_dma);
3174 static void niu_free_channels(struct niu *np)
3179 for (i = 0; i < np->num_rx_rings; i++) {
3180 struct rx_ring_info *rp = &np->rx_rings[i];
3182 niu_free_rx_ring_info(np, rp);
3184 kfree(np->rx_rings);
3185 np->rx_rings = NULL;
3186 np->num_rx_rings = 0;
3190 for (i = 0; i < np->num_tx_rings; i++) {
3191 struct tx_ring_info *rp = &np->tx_rings[i];
3193 niu_free_tx_ring_info(np, rp);
3195 kfree(np->tx_rings);
3196 np->tx_rings = NULL;
3197 np->num_tx_rings = 0;
3201 static int niu_alloc_rx_ring_info(struct niu *np,
3202 struct rx_ring_info *rp)
3204 BUILD_BUG_ON(sizeof(struct rxdma_mailbox) != 64);
3206 rp->rxhash = kzalloc(MAX_RBR_RING_SIZE * sizeof(struct page *),
3211 rp->mbox = np->ops->alloc_coherent(np->device,
3212 sizeof(struct rxdma_mailbox),
3213 &rp->mbox_dma, GFP_KERNEL);
3216 if ((unsigned long)rp->mbox & (64UL - 1)) {
3217 dev_err(np->device, PFX "%s: Coherent alloc gives misaligned "
3218 "RXDMA mailbox %p\n", np->dev->name, rp->mbox);
3222 rp->rcr = np->ops->alloc_coherent(np->device,
3223 MAX_RCR_RING_SIZE * sizeof(__le64),
3224 &rp->rcr_dma, GFP_KERNEL);
3227 if ((unsigned long)rp->rcr & (64UL - 1)) {
3228 dev_err(np->device, PFX "%s: Coherent alloc gives misaligned "
3229 "RXDMA RCR table %p\n", np->dev->name, rp->rcr);
3232 rp->rcr_table_size = MAX_RCR_RING_SIZE;
3235 rp->rbr = np->ops->alloc_coherent(np->device,
3236 MAX_RBR_RING_SIZE * sizeof(__le32),
3237 &rp->rbr_dma, GFP_KERNEL);
3240 if ((unsigned long)rp->rbr & (64UL - 1)) {
3241 dev_err(np->device, PFX "%s: Coherent alloc gives misaligned "
3242 "RXDMA RBR table %p\n", np->dev->name, rp->rbr);
3245 rp->rbr_table_size = MAX_RBR_RING_SIZE;
3247 rp->rbr_pending = 0;
3252 static void niu_set_max_burst(struct niu *np, struct tx_ring_info *rp)
3254 int mtu = np->dev->mtu;
3256 /* These values are recommended by the HW designers for fair
3257 * utilization of DRR amongst the rings.
3259 rp->max_burst = mtu + 32;
3260 if (rp->max_burst > 4096)
3261 rp->max_burst = 4096;
3264 static int niu_alloc_tx_ring_info(struct niu *np,
3265 struct tx_ring_info *rp)
3267 BUILD_BUG_ON(sizeof(struct txdma_mailbox) != 64);
3269 rp->mbox = np->ops->alloc_coherent(np->device,
3270 sizeof(struct txdma_mailbox),
3271 &rp->mbox_dma, GFP_KERNEL);
3274 if ((unsigned long)rp->mbox & (64UL - 1)) {
3275 dev_err(np->device, PFX "%s: Coherent alloc gives misaligned "
3276 "TXDMA mailbox %p\n", np->dev->name, rp->mbox);
3280 rp->descr = np->ops->alloc_coherent(np->device,
3281 MAX_TX_RING_SIZE * sizeof(__le64),
3282 &rp->descr_dma, GFP_KERNEL);
3285 if ((unsigned long)rp->descr & (64UL - 1)) {
3286 dev_err(np->device, PFX "%s: Coherent alloc gives misaligned "
3287 "TXDMA descr table %p\n", np->dev->name, rp->descr);
3291 rp->pending = MAX_TX_RING_SIZE;
3296 /* XXX make these configurable... XXX */
3297 rp->mark_freq = rp->pending / 4;
3299 niu_set_max_burst(np, rp);
3304 static void niu_size_rbr(struct niu *np, struct rx_ring_info *rp)
3308 bss = min(PAGE_SHIFT, 15);
3310 rp->rbr_block_size = 1 << bss;
3311 rp->rbr_blocks_per_page = 1 << (PAGE_SHIFT-bss);
3313 rp->rbr_sizes[0] = 256;
3314 rp->rbr_sizes[1] = 1024;
3315 if (np->dev->mtu > ETH_DATA_LEN) {
3316 switch (PAGE_SIZE) {
3318 rp->rbr_sizes[2] = 4096;
3322 rp->rbr_sizes[2] = 8192;
3326 rp->rbr_sizes[2] = 2048;
3328 rp->rbr_sizes[3] = rp->rbr_block_size;
3331 static int niu_alloc_channels(struct niu *np)
3333 struct niu_parent *parent = np->parent;
3334 int first_rx_channel, first_tx_channel;
3338 first_rx_channel = first_tx_channel = 0;
3339 for (i = 0; i < port; i++) {
3340 first_rx_channel += parent->rxchan_per_port[i];
3341 first_tx_channel += parent->txchan_per_port[i];
3344 np->num_rx_rings = parent->rxchan_per_port[port];
3345 np->num_tx_rings = parent->txchan_per_port[port];
3347 np->rx_rings = kzalloc(np->num_rx_rings * sizeof(struct rx_ring_info),
3353 for (i = 0; i < np->num_rx_rings; i++) {
3354 struct rx_ring_info *rp = &np->rx_rings[i];
3357 rp->rx_channel = first_rx_channel + i;
3359 err = niu_alloc_rx_ring_info(np, rp);
3363 niu_size_rbr(np, rp);
3365 /* XXX better defaults, configurable, etc... XXX */
3366 rp->nonsyn_window = 64;
3367 rp->nonsyn_threshold = rp->rcr_table_size - 64;
3368 rp->syn_window = 64;
3369 rp->syn_threshold = rp->rcr_table_size - 64;
3370 rp->rcr_pkt_threshold = 16;
3371 rp->rcr_timeout = 8;
3372 rp->rbr_kick_thresh = RBR_REFILL_MIN;
3373 if (rp->rbr_kick_thresh < rp->rbr_blocks_per_page)
3374 rp->rbr_kick_thresh = rp->rbr_blocks_per_page;
3376 err = niu_rbr_fill(np, rp, GFP_KERNEL);
3381 np->tx_rings = kzalloc(np->num_tx_rings * sizeof(struct tx_ring_info),
3387 for (i = 0; i < np->num_tx_rings; i++) {
3388 struct tx_ring_info *rp = &np->tx_rings[i];
3391 rp->tx_channel = first_tx_channel + i;
3393 err = niu_alloc_tx_ring_info(np, rp);
3401 niu_free_channels(np);
3405 static int niu_tx_cs_sng_poll(struct niu *np, int channel)
3409 while (--limit > 0) {
3410 u64 val = nr64(TX_CS(channel));
3411 if (val & TX_CS_SNG_STATE)
3417 static int niu_tx_channel_stop(struct niu *np, int channel)
3419 u64 val = nr64(TX_CS(channel));
3421 val |= TX_CS_STOP_N_GO;
3422 nw64(TX_CS(channel), val);
3424 return niu_tx_cs_sng_poll(np, channel);
3427 static int niu_tx_cs_reset_poll(struct niu *np, int channel)
3431 while (--limit > 0) {
3432 u64 val = nr64(TX_CS(channel));
3433 if (!(val & TX_CS_RST))
3439 static int niu_tx_channel_reset(struct niu *np, int channel)
3441 u64 val = nr64(TX_CS(channel));
3445 nw64(TX_CS(channel), val);
3447 err = niu_tx_cs_reset_poll(np, channel);
3449 nw64(TX_RING_KICK(channel), 0);
3454 static int niu_tx_channel_lpage_init(struct niu *np, int channel)
3458 nw64(TX_LOG_MASK1(channel), 0);
3459 nw64(TX_LOG_VAL1(channel), 0);
3460 nw64(TX_LOG_MASK2(channel), 0);
3461 nw64(TX_LOG_VAL2(channel), 0);
3462 nw64(TX_LOG_PAGE_RELO1(channel), 0);
3463 nw64(TX_LOG_PAGE_RELO2(channel), 0);
3464 nw64(TX_LOG_PAGE_HDL(channel), 0);
3466 val = (u64)np->port << TX_LOG_PAGE_VLD_FUNC_SHIFT;
3467 val |= (TX_LOG_PAGE_VLD_PAGE0 | TX_LOG_PAGE_VLD_PAGE1);
3468 nw64(TX_LOG_PAGE_VLD(channel), val);
3470 /* XXX TXDMA 32bit mode? XXX */
3475 static void niu_txc_enable_port(struct niu *np, int on)
3477 unsigned long flags;
3480 niu_lock_parent(np, flags);
3481 val = nr64(TXC_CONTROL);
3482 mask = (u64)1 << np->port;
3484 val |= TXC_CONTROL_ENABLE | mask;
3487 if ((val & ~TXC_CONTROL_ENABLE) == 0)
3488 val &= ~TXC_CONTROL_ENABLE;
3490 nw64(TXC_CONTROL, val);
3491 niu_unlock_parent(np, flags);
3494 static void niu_txc_set_imask(struct niu *np, u64 imask)
3496 unsigned long flags;
3499 niu_lock_parent(np, flags);
3500 val = nr64(TXC_INT_MASK);
3501 val &= ~TXC_INT_MASK_VAL(np->port);
3502 val |= (imask << TXC_INT_MASK_VAL_SHIFT(np->port));
3503 niu_unlock_parent(np, flags);
3506 static void niu_txc_port_dma_enable(struct niu *np, int on)
3513 for (i = 0; i < np->num_tx_rings; i++)
3514 val |= (1 << np->tx_rings[i].tx_channel);
3516 nw64(TXC_PORT_DMA(np->port), val);
3519 static int niu_init_one_tx_channel(struct niu *np, struct tx_ring_info *rp)
3521 int err, channel = rp->tx_channel;
3524 err = niu_tx_channel_stop(np, channel);
3528 err = niu_tx_channel_reset(np, channel);
3532 err = niu_tx_channel_lpage_init(np, channel);
3536 nw64(TXC_DMA_MAX(channel), rp->max_burst);
3537 nw64(TX_ENT_MSK(channel), 0);
3539 if (rp->descr_dma & ~(TX_RNG_CFIG_STADDR_BASE |
3540 TX_RNG_CFIG_STADDR)) {
3541 dev_err(np->device, PFX "%s: TX ring channel %d "
3542 "DMA addr (%llx) is not aligned.\n",
3543 np->dev->name, channel,
3544 (unsigned long long) rp->descr_dma);
3548 /* The length field in TX_RNG_CFIG is measured in 64-byte
3549 * blocks. rp->pending is the number of TX descriptors in
3550 * our ring, 8 bytes each, thus we divide by 8 bytes more
3551 * to get the proper value the chip wants.
3553 ring_len = (rp->pending / 8);
3555 val = ((ring_len << TX_RNG_CFIG_LEN_SHIFT) |
3557 nw64(TX_RNG_CFIG(channel), val);
3559 if (((rp->mbox_dma >> 32) & ~TXDMA_MBH_MBADDR) ||
3560 ((u32)rp->mbox_dma & ~TXDMA_MBL_MBADDR)) {
3561 dev_err(np->device, PFX "%s: TX ring channel %d "
3562 "MBOX addr (%llx) is has illegal bits.\n",
3563 np->dev->name, channel,
3564 (unsigned long long) rp->mbox_dma);
3567 nw64(TXDMA_MBH(channel), rp->mbox_dma >> 32);
3568 nw64(TXDMA_MBL(channel), rp->mbox_dma & TXDMA_MBL_MBADDR);
3570 nw64(TX_CS(channel), 0);
3572 rp->last_pkt_cnt = 0;
3577 static void niu_init_rdc_groups(struct niu *np)
3579 struct niu_rdc_tables *tp = &np->parent->rdc_group_cfg[np->port];
3580 int i, first_table_num = tp->first_table_num;
3582 for (i = 0; i < tp->num_tables; i++) {
3583 struct rdc_table *tbl = &tp->tables[i];
3584 int this_table = first_table_num + i;
3587 for (slot = 0; slot < NIU_RDC_TABLE_SLOTS; slot++)
3588 nw64(RDC_TBL(this_table, slot),
3589 tbl->rxdma_channel[slot]);
3592 nw64(DEF_RDC(np->port), np->parent->rdc_default[np->port]);
3595 static void niu_init_drr_weight(struct niu *np)
3597 int type = phy_decode(np->parent->port_phy, np->port);
3602 val = PT_DRR_WEIGHT_DEFAULT_10G;
3607 val = PT_DRR_WEIGHT_DEFAULT_1G;
3610 nw64(PT_DRR_WT(np->port), val);
3613 static int niu_init_hostinfo(struct niu *np)
3615 struct niu_parent *parent = np->parent;
3616 struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port];
3617 int i, err, num_alt = niu_num_alt_addr(np);
3618 int first_rdc_table = tp->first_table_num;
3620 err = niu_set_primary_mac_rdc_table(np, first_rdc_table, 1);
3624 err = niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1);
3628 for (i = 0; i < num_alt; i++) {
3629 err = niu_set_alt_mac_rdc_table(np, i, first_rdc_table, 1);
3637 static int niu_rx_channel_reset(struct niu *np, int channel)
3639 return niu_set_and_wait_clear(np, RXDMA_CFIG1(channel),
3640 RXDMA_CFIG1_RST, 1000, 10,
3644 static int niu_rx_channel_lpage_init(struct niu *np, int channel)
3648 nw64(RX_LOG_MASK1(channel), 0);
3649 nw64(RX_LOG_VAL1(channel), 0);
3650 nw64(RX_LOG_MASK2(channel), 0);
3651 nw64(RX_LOG_VAL2(channel), 0);
3652 nw64(RX_LOG_PAGE_RELO1(channel), 0);
3653 nw64(RX_LOG_PAGE_RELO2(channel), 0);
3654 nw64(RX_LOG_PAGE_HDL(channel), 0);
3656 val = (u64)np->port << RX_LOG_PAGE_VLD_FUNC_SHIFT;
3657 val |= (RX_LOG_PAGE_VLD_PAGE0 | RX_LOG_PAGE_VLD_PAGE1);
3658 nw64(RX_LOG_PAGE_VLD(channel), val);
3663 static void niu_rx_channel_wred_init(struct niu *np, struct rx_ring_info *rp)
3667 val = (((u64)rp->nonsyn_window << RDC_RED_PARA_WIN_SHIFT) |
3668 ((u64)rp->nonsyn_threshold << RDC_RED_PARA_THRE_SHIFT) |
3669 ((u64)rp->syn_window << RDC_RED_PARA_WIN_SYN_SHIFT) |
3670 ((u64)rp->syn_threshold << RDC_RED_PARA_THRE_SYN_SHIFT));
3671 nw64(RDC_RED_PARA(rp->rx_channel), val);
3674 static int niu_compute_rbr_cfig_b(struct rx_ring_info *rp, u64 *ret)
3678 switch (rp->rbr_block_size) {
3680 val |= (RBR_BLKSIZE_4K << RBR_CFIG_B_BLKSIZE_SHIFT);
3683 val |= (RBR_BLKSIZE_8K << RBR_CFIG_B_BLKSIZE_SHIFT);
3686 val |= (RBR_BLKSIZE_16K << RBR_CFIG_B_BLKSIZE_SHIFT);
3689 val |= (RBR_BLKSIZE_32K << RBR_CFIG_B_BLKSIZE_SHIFT);
3694 val |= RBR_CFIG_B_VLD2;
3695 switch (rp->rbr_sizes[2]) {
3697 val |= (RBR_BUFSZ2_2K << RBR_CFIG_B_BUFSZ2_SHIFT);
3700 val |= (RBR_BUFSZ2_4K << RBR_CFIG_B_BUFSZ2_SHIFT);
3703 val |= (RBR_BUFSZ2_8K << RBR_CFIG_B_BUFSZ2_SHIFT);
3706 val |= (RBR_BUFSZ2_16K << RBR_CFIG_B_BUFSZ2_SHIFT);
3712 val |= RBR_CFIG_B_VLD1;
3713 switch (rp->rbr_sizes[1]) {
3715 val |= (RBR_BUFSZ1_1K << RBR_CFIG_B_BUFSZ1_SHIFT);
3718 val |= (RBR_BUFSZ1_2K << RBR_CFIG_B_BUFSZ1_SHIFT);
3721 val |= (RBR_BUFSZ1_4K << RBR_CFIG_B_BUFSZ1_SHIFT);
3724 val |= (RBR_BUFSZ1_8K << RBR_CFIG_B_BUFSZ1_SHIFT);
3730 val |= RBR_CFIG_B_VLD0;
3731 switch (rp->rbr_sizes[0]) {
3733 val |= (RBR_BUFSZ0_256 << RBR_CFIG_B_BUFSZ0_SHIFT);
3736 val |= (RBR_BUFSZ0_512 << RBR_CFIG_B_BUFSZ0_SHIFT);
3739 val |= (RBR_BUFSZ0_1K << RBR_CFIG_B_BUFSZ0_SHIFT);
3742 val |= (RBR_BUFSZ0_2K << RBR_CFIG_B_BUFSZ0_SHIFT);
3753 static int niu_enable_rx_channel(struct niu *np, int channel, int on)
3755 u64 val = nr64(RXDMA_CFIG1(channel));
3759 val |= RXDMA_CFIG1_EN;
3761 val &= ~RXDMA_CFIG1_EN;
3762 nw64(RXDMA_CFIG1(channel), val);
3765 while (--limit > 0) {
3766 if (nr64(RXDMA_CFIG1(channel)) & RXDMA_CFIG1_QST)
3775 static int niu_init_one_rx_channel(struct niu *np, struct rx_ring_info *rp)
3777 int err, channel = rp->rx_channel;
3780 err = niu_rx_channel_reset(np, channel);
3784 err = niu_rx_channel_lpage_init(np, channel);
3788 niu_rx_channel_wred_init(np, rp);
3790 nw64(RX_DMA_ENT_MSK(channel), RX_DMA_ENT_MSK_RBR_EMPTY);
3791 nw64(RX_DMA_CTL_STAT(channel),
3792 (RX_DMA_CTL_STAT_MEX |
3793 RX_DMA_CTL_STAT_RCRTHRES |
3794 RX_DMA_CTL_STAT_RCRTO |
3795 RX_DMA_CTL_STAT_RBR_EMPTY));
3796 nw64(RXDMA_CFIG1(channel), rp->mbox_dma >> 32);
3797 nw64(RXDMA_CFIG2(channel), (rp->mbox_dma & 0x00000000ffffffc0));
3798 nw64(RBR_CFIG_A(channel),
3799 ((u64)rp->rbr_table_size << RBR_CFIG_A_LEN_SHIFT) |
3800 (rp->rbr_dma & (RBR_CFIG_A_STADDR_BASE | RBR_CFIG_A_STADDR)));
3801 err = niu_compute_rbr_cfig_b(rp, &val);
3804 nw64(RBR_CFIG_B(channel), val);
3805 nw64(RCRCFIG_A(channel),
3806 ((u64)rp->rcr_table_size << RCRCFIG_A_LEN_SHIFT) |
3807 (rp->rcr_dma & (RCRCFIG_A_STADDR_BASE | RCRCFIG_A_STADDR)));
3808 nw64(RCRCFIG_B(channel),
3809 ((u64)rp->rcr_pkt_threshold << RCRCFIG_B_PTHRES_SHIFT) |
3811 ((u64)rp->rcr_timeout << RCRCFIG_B_TIMEOUT_SHIFT));
3813 err = niu_enable_rx_channel(np, channel, 1);
3817 nw64(RBR_KICK(channel), rp->rbr_index);
3819 val = nr64(RX_DMA_CTL_STAT(channel));
3820 val |= RX_DMA_CTL_STAT_RBR_EMPTY;
3821 nw64(RX_DMA_CTL_STAT(channel), val);
3826 static int niu_init_rx_channels(struct niu *np)
3828 unsigned long flags;
3829 u64 seed = jiffies_64;
3832 niu_lock_parent(np, flags);
3833 nw64(RX_DMA_CK_DIV, np->parent->rxdma_clock_divider);
3834 nw64(RED_RAN_INIT, RED_RAN_INIT_OPMODE | (seed & RED_RAN_INIT_VAL));
3835 niu_unlock_parent(np, flags);
3837 /* XXX RXDMA 32bit mode? XXX */
3839 niu_init_rdc_groups(np);
3840 niu_init_drr_weight(np);
3842 err = niu_init_hostinfo(np);
3846 for (i = 0; i < np->num_rx_rings; i++) {
3847 struct rx_ring_info *rp = &np->rx_rings[i];
3849 err = niu_init_one_rx_channel(np, rp);
3857 static int niu_set_ip_frag_rule(struct niu *np)
3859 struct niu_parent *parent = np->parent;
3860 struct niu_classifier *cp = &np->clas;
3861 struct niu_tcam_entry *tp;
3864 /* XXX fix this allocation scheme XXX */
3865 index = cp->tcam_index;
3866 tp = &parent->tcam[index];
3868 /* Note that the noport bit is the same in both ipv4 and
3869 * ipv6 format TCAM entries.
3871 memset(tp, 0, sizeof(*tp));
3872 tp->key[1] = TCAM_V4KEY1_NOPORT;
3873 tp->key_mask[1] = TCAM_V4KEY1_NOPORT;
3874 tp->assoc_data = (TCAM_ASSOCDATA_TRES_USE_OFFSET |
3875 ((u64)0 << TCAM_ASSOCDATA_OFFSET_SHIFT));
3876 err = tcam_write(np, index, tp->key, tp->key_mask);
3879 err = tcam_assoc_write(np, index, tp->assoc_data);
3886 static int niu_init_classifier_hw(struct niu *np)
3888 struct niu_parent *parent = np->parent;
3889 struct niu_classifier *cp = &np->clas;
3892 nw64(H1POLY, cp->h1_init);
3893 nw64(H2POLY, cp->h2_init);
3895 err = niu_init_hostinfo(np);
3899 for (i = 0; i < ENET_VLAN_TBL_NUM_ENTRIES; i++) {
3900 struct niu_vlan_rdc *vp = &cp->vlan_mappings[i];
3902 vlan_tbl_write(np, i, np->port,
3903 vp->vlan_pref, vp->rdc_num);
3906 for (i = 0; i < cp->num_alt_mac_mappings; i++) {
3907 struct niu_altmac_rdc *ap = &cp->alt_mac_mappings[i];
3909 err = niu_set_alt_mac_rdc_table(np, ap->alt_mac_num,
3910 ap->rdc_num, ap->mac_pref);
3915 for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_SCTP_IPV6; i++) {
3916 int index = i - CLASS_CODE_USER_PROG1;
3918 err = niu_set_tcam_key(np, i, parent->tcam_key[index]);
3921 err = niu_set_flow_key(np, i, parent->flow_key[index]);
3926 err = niu_set_ip_frag_rule(np);
3935 static int niu_zcp_write(struct niu *np, int index, u64 *data)
3937 nw64(ZCP_RAM_DATA0, data[0]);
3938 nw64(ZCP_RAM_DATA1, data[1]);
3939 nw64(ZCP_RAM_DATA2, data[2]);
3940 nw64(ZCP_RAM_DATA3, data[3]);
3941 nw64(ZCP_RAM_DATA4, data[4]);
3942 nw64(ZCP_RAM_BE, ZCP_RAM_BE_VAL);
3944 (ZCP_RAM_ACC_WRITE |
3945 (0 << ZCP_RAM_ACC_ZFCID_SHIFT) |
3946 (ZCP_RAM_SEL_CFIFO(np->port) << ZCP_RAM_ACC_RAM_SEL_SHIFT)));
3948 return niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY,
3952 static int niu_zcp_read(struct niu *np, int index, u64 *data)
3956 err = niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY,
3959 dev_err(np->device, PFX "%s: ZCP read busy won't clear, "
3960 "ZCP_RAM_ACC[%llx]\n", np->dev->name,
3961 (unsigned long long) nr64(ZCP_RAM_ACC));
3967 (0 << ZCP_RAM_ACC_ZFCID_SHIFT) |
3968 (ZCP_RAM_SEL_CFIFO(np->port) << ZCP_RAM_ACC_RAM_SEL_SHIFT)));
3970 err = niu_wait_bits_clear(np, ZCP_RAM_ACC, ZCP_RAM_ACC_BUSY,
3973 dev_err(np->device, PFX "%s: ZCP read busy2 won't clear, "
3974 "ZCP_RAM_ACC[%llx]\n", np->dev->name,
3975 (unsigned long long) nr64(ZCP_RAM_ACC));
3979 data[0] = nr64(ZCP_RAM_DATA0);
3980 data[1] = nr64(ZCP_RAM_DATA1);
3981 data[2] = nr64(ZCP_RAM_DATA2);
3982 data[3] = nr64(ZCP_RAM_DATA3);
3983 data[4] = nr64(ZCP_RAM_DATA4);
3988 static void niu_zcp_cfifo_reset(struct niu *np)
3990 u64 val = nr64(RESET_CFIFO);
3992 val |= RESET_CFIFO_RST(np->port);
3993 nw64(RESET_CFIFO, val);
3996 val &= ~RESET_CFIFO_RST(np->port);
3997 nw64(RESET_CFIFO, val);
4000 static int niu_init_zcp(struct niu *np)
4002 u64 data[5], rbuf[5];
4005 if (np->parent->plat_type != PLAT_TYPE_NIU) {
4006 if (np->port == 0 || np->port == 1)
4007 max = ATLAS_P0_P1_CFIFO_ENTRIES;
4009 max = ATLAS_P2_P3_CFIFO_ENTRIES;
4011 max = NIU_CFIFO_ENTRIES;
4019 for (i = 0; i < max; i++) {
4020 err = niu_zcp_write(np, i, data);
4023 err = niu_zcp_read(np, i, rbuf);
4028 niu_zcp_cfifo_reset(np);
4029 nw64(CFIFO_ECC(np->port), 0);
4030 nw64(ZCP_INT_STAT, ZCP_INT_STAT_ALL);
4031 (void) nr64(ZCP_INT_STAT);
4032 nw64(ZCP_INT_MASK, ZCP_INT_MASK_ALL);
4037 static void niu_ipp_write(struct niu *np, int index, u64 *data)
4039 u64 val = nr64_ipp(IPP_CFIG);
4041 nw64_ipp(IPP_CFIG, val | IPP_CFIG_DFIFO_PIO_W);
4042 nw64_ipp(IPP_DFIFO_WR_PTR, index);
4043 nw64_ipp(IPP_DFIFO_WR0, data[0]);
4044 nw64_ipp(IPP_DFIFO_WR1, data[1]);
4045 nw64_ipp(IPP_DFIFO_WR2, data[2]);
4046 nw64_ipp(IPP_DFIFO_WR3, data[3]);
4047 nw64_ipp(IPP_DFIFO_WR4, data[4]);
4048 nw64_ipp(IPP_CFIG, val & ~IPP_CFIG_DFIFO_PIO_W);
4051 static void niu_ipp_read(struct niu *np, int index, u64 *data)
4053 nw64_ipp(IPP_DFIFO_RD_PTR, index);
4054 data[0] = nr64_ipp(IPP_DFIFO_RD0);
4055 data[1] = nr64_ipp(IPP_DFIFO_RD1);
4056 data[2] = nr64_ipp(IPP_DFIFO_RD2);
4057 data[3] = nr64_ipp(IPP_DFIFO_RD3);
4058 data[4] = nr64_ipp(IPP_DFIFO_RD4);
4061 static int niu_ipp_reset(struct niu *np)
4063 return niu_set_and_wait_clear_ipp(np, IPP_CFIG, IPP_CFIG_SOFT_RST,
4064 1000, 100, "IPP_CFIG");
4067 static int niu_init_ipp(struct niu *np)
4069 u64 data[5], rbuf[5], val;
4072 if (np->parent->plat_type != PLAT_TYPE_NIU) {
4073 if (np->port == 0 || np->port == 1)
4074 max = ATLAS_P0_P1_DFIFO_ENTRIES;
4076 max = ATLAS_P2_P3_DFIFO_ENTRIES;
4078 max = NIU_DFIFO_ENTRIES;
4086 for (i = 0; i < max; i++) {
4087 niu_ipp_write(np, i, data);
4088 niu_ipp_read(np, i, rbuf);
4091 (void) nr64_ipp(IPP_INT_STAT);
4092 (void) nr64_ipp(IPP_INT_STAT);
4094 err = niu_ipp_reset(np);
4098 (void) nr64_ipp(IPP_PKT_DIS);
4099 (void) nr64_ipp(IPP_BAD_CS_CNT);
4100 (void) nr64_ipp(IPP_ECC);
4102 (void) nr64_ipp(IPP_INT_STAT);
4104 nw64_ipp(IPP_MSK, ~IPP_MSK_ALL);
4106 val = nr64_ipp(IPP_CFIG);
4107 val &= ~IPP_CFIG_IP_MAX_PKT;
4108 val |= (IPP_CFIG_IPP_ENABLE |
4109 IPP_CFIG_DFIFO_ECC_EN |
4110 IPP_CFIG_DROP_BAD_CRC |
4112 (0x1ffff << IPP_CFIG_IP_MAX_PKT_SHIFT));
4113 nw64_ipp(IPP_CFIG, val);
4118 static void niu_handle_led(struct niu *np, int status)
4121 val = nr64_mac(XMAC_CONFIG);
4123 if ((np->flags & NIU_FLAGS_10G) != 0 &&
4124 (np->flags & NIU_FLAGS_FIBER) != 0) {
4126 val |= XMAC_CONFIG_LED_POLARITY;
4127 val &= ~XMAC_CONFIG_FORCE_LED_ON;
4129 val |= XMAC_CONFIG_FORCE_LED_ON;
4130 val &= ~XMAC_CONFIG_LED_POLARITY;
4134 nw64_mac(XMAC_CONFIG, val);
4137 static void niu_init_xif_xmac(struct niu *np)
4139 struct niu_link_config *lp = &np->link_config;
4142 val = nr64_mac(XMAC_CONFIG);
4143 val &= ~XMAC_CONFIG_SEL_POR_CLK_SRC;
4145 val |= XMAC_CONFIG_TX_OUTPUT_EN;
4147 if (lp->loopback_mode == LOOPBACK_MAC) {
4148 val &= ~XMAC_CONFIG_SEL_POR_CLK_SRC;
4149 val |= XMAC_CONFIG_LOOPBACK;
4151 val &= ~XMAC_CONFIG_LOOPBACK;
4154 if (np->flags & NIU_FLAGS_10G) {
4155 val &= ~XMAC_CONFIG_LFS_DISABLE;
4157 val |= XMAC_CONFIG_LFS_DISABLE;
4158 if (!(np->flags & NIU_FLAGS_FIBER))
4159 val |= XMAC_CONFIG_1G_PCS_BYPASS;
4161 val &= ~XMAC_CONFIG_1G_PCS_BYPASS;
4164 val &= ~XMAC_CONFIG_10G_XPCS_BYPASS;
4166 if (lp->active_speed == SPEED_100)
4167 val |= XMAC_CONFIG_SEL_CLK_25MHZ;
4169 val &= ~XMAC_CONFIG_SEL_CLK_25MHZ;
4171 nw64_mac(XMAC_CONFIG, val);
4173 val = nr64_mac(XMAC_CONFIG);
4174 val &= ~XMAC_CONFIG_MODE_MASK;
4175 if (np->flags & NIU_FLAGS_10G) {
4176 val |= XMAC_CONFIG_MODE_XGMII;
4178 if (lp->active_speed == SPEED_100)
4179 val |= XMAC_CONFIG_MODE_MII;
4181 val |= XMAC_CONFIG_MODE_GMII;
4184 nw64_mac(XMAC_CONFIG, val);
4187 static void niu_init_xif_bmac(struct niu *np)
4189 struct niu_link_config *lp = &np->link_config;
4192 val = BMAC_XIF_CONFIG_TX_OUTPUT_EN;
4194 if (lp->loopback_mode == LOOPBACK_MAC)
4195 val |= BMAC_XIF_CONFIG_MII_LOOPBACK;
4197 val &= ~BMAC_XIF_CONFIG_MII_LOOPBACK;
4199 if (lp->active_speed == SPEED_1000)
4200 val |= BMAC_XIF_CONFIG_GMII_MODE;
4202 val &= ~BMAC_XIF_CONFIG_GMII_MODE;
4204 val &= ~(BMAC_XIF_CONFIG_LINK_LED |
4205 BMAC_XIF_CONFIG_LED_POLARITY);
4207 if (!(np->flags & NIU_FLAGS_10G) &&
4208 !(np->flags & NIU_FLAGS_FIBER) &&
4209 lp->active_speed == SPEED_100)
4210 val |= BMAC_XIF_CONFIG_25MHZ_CLOCK;
4212 val &= ~BMAC_XIF_CONFIG_25MHZ_CLOCK;
4214 nw64_mac(BMAC_XIF_CONFIG, val);
4217 static void niu_init_xif(struct niu *np)
4219 if (np->flags & NIU_FLAGS_XMAC)
4220 niu_init_xif_xmac(np);
4222 niu_init_xif_bmac(np);
4225 static void niu_pcs_mii_reset(struct niu *np)
4227 u64 val = nr64_pcs(PCS_MII_CTL);
4228 val |= PCS_MII_CTL_RST;
4229 nw64_pcs(PCS_MII_CTL, val);
4232 static void niu_xpcs_reset(struct niu *np)
4234 u64 val = nr64_xpcs(XPCS_CONTROL1);
4235 val |= XPCS_CONTROL1_RESET;
4236 nw64_xpcs(XPCS_CONTROL1, val);
4239 static int niu_init_pcs(struct niu *np)
4241 struct niu_link_config *lp = &np->link_config;
4244 switch (np->flags & (NIU_FLAGS_10G | NIU_FLAGS_FIBER)) {
4245 case NIU_FLAGS_FIBER:
4247 nw64_pcs(PCS_CONF, PCS_CONF_MASK | PCS_CONF_ENABLE);
4248 nw64_pcs(PCS_DPATH_MODE, 0);
4249 niu_pcs_mii_reset(np);
4253 case NIU_FLAGS_10G | NIU_FLAGS_FIBER:
4254 if (!(np->flags & NIU_FLAGS_XMAC))
4257 /* 10G copper or fiber */
4258 val = nr64_mac(XMAC_CONFIG);
4259 val &= ~XMAC_CONFIG_10G_XPCS_BYPASS;
4260 nw64_mac(XMAC_CONFIG, val);
4264 val = nr64_xpcs(XPCS_CONTROL1);
4265 if (lp->loopback_mode == LOOPBACK_PHY)
4266 val |= XPCS_CONTROL1_LOOPBACK;
4268 val &= ~XPCS_CONTROL1_LOOPBACK;
4269 nw64_xpcs(XPCS_CONTROL1, val);
4271 nw64_xpcs(XPCS_DESKEW_ERR_CNT, 0);
4272 (void) nr64_xpcs(XPCS_SYMERR_CNT01);
4273 (void) nr64_xpcs(XPCS_SYMERR_CNT23);
4278 nw64_pcs(PCS_DPATH_MODE, PCS_DPATH_MODE_MII);
4279 niu_pcs_mii_reset(np);
4289 static int niu_reset_tx_xmac(struct niu *np)
4291 return niu_set_and_wait_clear_mac(np, XTXMAC_SW_RST,
4292 (XTXMAC_SW_RST_REG_RS |
4293 XTXMAC_SW_RST_SOFT_RST),
4294 1000, 100, "XTXMAC_SW_RST");
4297 static int niu_reset_tx_bmac(struct niu *np)
4301 nw64_mac(BTXMAC_SW_RST, BTXMAC_SW_RST_RESET);
4303 while (--limit >= 0) {
4304 if (!(nr64_mac(BTXMAC_SW_RST) & BTXMAC_SW_RST_RESET))
4309 dev_err(np->device, PFX "Port %u TX BMAC would not reset, "
4310 "BTXMAC_SW_RST[%llx]\n",
4312 (unsigned long long) nr64_mac(BTXMAC_SW_RST));
4319 static int niu_reset_tx_mac(struct niu *np)
4321 if (np->flags & NIU_FLAGS_XMAC)
4322 return niu_reset_tx_xmac(np);
4324 return niu_reset_tx_bmac(np);
4327 static void niu_init_tx_xmac(struct niu *np, u64 min, u64 max)
4331 val = nr64_mac(XMAC_MIN);
4332 val &= ~(XMAC_MIN_TX_MIN_PKT_SIZE |
4333 XMAC_MIN_RX_MIN_PKT_SIZE);
4334 val |= (min << XMAC_MIN_RX_MIN_PKT_SIZE_SHFT);
4335 val |= (min << XMAC_MIN_TX_MIN_PKT_SIZE_SHFT);
4336 nw64_mac(XMAC_MIN, val);
4338 nw64_mac(XMAC_MAX, max);
4340 nw64_mac(XTXMAC_STAT_MSK, ~(u64)0);
4342 val = nr64_mac(XMAC_IPG);
4343 if (np->flags & NIU_FLAGS_10G) {
4344 val &= ~XMAC_IPG_IPG_XGMII;
4345 val |= (IPG_12_15_XGMII << XMAC_IPG_IPG_XGMII_SHIFT);
4347 val &= ~XMAC_IPG_IPG_MII_GMII;
4348 val |= (IPG_12_MII_GMII << XMAC_IPG_IPG_MII_GMII_SHIFT);
4350 nw64_mac(XMAC_IPG, val);
4352 val = nr64_mac(XMAC_CONFIG);
4353 val &= ~(XMAC_CONFIG_ALWAYS_NO_CRC |
4354 XMAC_CONFIG_STRETCH_MODE |
4355 XMAC_CONFIG_VAR_MIN_IPG_EN |
4356 XMAC_CONFIG_TX_ENABLE);
4357 nw64_mac(XMAC_CONFIG, val);
4359 nw64_mac(TXMAC_FRM_CNT, 0);
4360 nw64_mac(TXMAC_BYTE_CNT, 0);
4363 static void niu_init_tx_bmac(struct niu *np, u64 min, u64 max)
4367 nw64_mac(BMAC_MIN_FRAME, min);
4368 nw64_mac(BMAC_MAX_FRAME, max);
4370 nw64_mac(BTXMAC_STATUS_MASK, ~(u64)0);
4371 nw64_mac(BMAC_CTRL_TYPE, 0x8808);
4372 nw64_mac(BMAC_PREAMBLE_SIZE, 7);
4374 val = nr64_mac(BTXMAC_CONFIG);
4375 val &= ~(BTXMAC_CONFIG_FCS_DISABLE |
4376 BTXMAC_CONFIG_ENABLE);
4377 nw64_mac(BTXMAC_CONFIG, val);
4380 static void niu_init_tx_mac(struct niu *np)
4385 if (np->dev->mtu > ETH_DATA_LEN)
4390 /* The XMAC_MIN register only accepts values for TX min which
4391 * have the low 3 bits cleared.
4393 BUILD_BUG_ON(min & 0x7);
4395 if (np->flags & NIU_FLAGS_XMAC)
4396 niu_init_tx_xmac(np, min, max);
4398 niu_init_tx_bmac(np, min, max);
4401 static int niu_reset_rx_xmac(struct niu *np)
4405 nw64_mac(XRXMAC_SW_RST,
4406 XRXMAC_SW_RST_REG_RS | XRXMAC_SW_RST_SOFT_RST);
4408 while (--limit >= 0) {
4409 if (!(nr64_mac(XRXMAC_SW_RST) & (XRXMAC_SW_RST_REG_RS |
4410 XRXMAC_SW_RST_SOFT_RST)))
4415 dev_err(np->device, PFX "Port %u RX XMAC would not reset, "
4416 "XRXMAC_SW_RST[%llx]\n",
4418 (unsigned long long) nr64_mac(XRXMAC_SW_RST));
4425 static int niu_reset_rx_bmac(struct niu *np)
4429 nw64_mac(BRXMAC_SW_RST, BRXMAC_SW_RST_RESET);
4431 while (--limit >= 0) {
4432 if (!(nr64_mac(BRXMAC_SW_RST) & BRXMAC_SW_RST_RESET))
4437 dev_err(np->device, PFX "Port %u RX BMAC would not reset, "
4438 "BRXMAC_SW_RST[%llx]\n",
4440 (unsigned long long) nr64_mac(BRXMAC_SW_RST));
4447 static int niu_reset_rx_mac(struct niu *np)
4449 if (np->flags & NIU_FLAGS_XMAC)
4450 return niu_reset_rx_xmac(np);
4452 return niu_reset_rx_bmac(np);
4455 static void niu_init_rx_xmac(struct niu *np)
4457 struct niu_parent *parent = np->parent;
4458 struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port];
4459 int first_rdc_table = tp->first_table_num;
4463 nw64_mac(XMAC_ADD_FILT0, 0);
4464 nw64_mac(XMAC_ADD_FILT1, 0);
4465 nw64_mac(XMAC_ADD_FILT2, 0);
4466 nw64_mac(XMAC_ADD_FILT12_MASK, 0);
4467 nw64_mac(XMAC_ADD_FILT00_MASK, 0);
4468 for (i = 0; i < MAC_NUM_HASH; i++)
4469 nw64_mac(XMAC_HASH_TBL(i), 0);
4470 nw64_mac(XRXMAC_STAT_MSK, ~(u64)0);
4471 niu_set_primary_mac_rdc_table(np, first_rdc_table, 1);
4472 niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1);
4474 val = nr64_mac(XMAC_CONFIG);
4475 val &= ~(XMAC_CONFIG_RX_MAC_ENABLE |
4476 XMAC_CONFIG_PROMISCUOUS |
4477 XMAC_CONFIG_PROMISC_GROUP |
4478 XMAC_CONFIG_ERR_CHK_DIS |
4479 XMAC_CONFIG_RX_CRC_CHK_DIS |
4480 XMAC_CONFIG_RESERVED_MULTICAST |
4481 XMAC_CONFIG_RX_CODEV_CHK_DIS |
4482 XMAC_CONFIG_ADDR_FILTER_EN |
4483 XMAC_CONFIG_RCV_PAUSE_ENABLE |
4484 XMAC_CONFIG_STRIP_CRC |
4485 XMAC_CONFIG_PASS_FLOW_CTRL |
4486 XMAC_CONFIG_MAC2IPP_PKT_CNT_EN);
4487 val |= (XMAC_CONFIG_HASH_FILTER_EN);
4488 nw64_mac(XMAC_CONFIG, val);
4490 nw64_mac(RXMAC_BT_CNT, 0);
4491 nw64_mac(RXMAC_BC_FRM_CNT, 0);
4492 nw64_mac(RXMAC_MC_FRM_CNT, 0);
4493 nw64_mac(RXMAC_FRAG_CNT, 0);
4494 nw64_mac(RXMAC_HIST_CNT1, 0);
4495 nw64_mac(RXMAC_HIST_CNT2, 0);
4496 nw64_mac(RXMAC_HIST_CNT3, 0);
4497 nw64_mac(RXMAC_HIST_CNT4, 0);
4498 nw64_mac(RXMAC_HIST_CNT5, 0);
4499 nw64_mac(RXMAC_HIST_CNT6, 0);
4500 nw64_mac(RXMAC_HIST_CNT7, 0);
4501 nw64_mac(RXMAC_MPSZER_CNT, 0);
4502 nw64_mac(RXMAC_CRC_ER_CNT, 0);
4503 nw64_mac(RXMAC_CD_VIO_CNT, 0);
4504 nw64_mac(LINK_FAULT_CNT, 0);
4507 static void niu_init_rx_bmac(struct niu *np)
4509 struct niu_parent *parent = np->parent;
4510 struct niu_rdc_tables *tp = &parent->rdc_group_cfg[np->port];
4511 int first_rdc_table = tp->first_table_num;
4515 nw64_mac(BMAC_ADD_FILT0, 0);
4516 nw64_mac(BMAC_ADD_FILT1, 0);
4517 nw64_mac(BMAC_ADD_FILT2, 0);
4518 nw64_mac(BMAC_ADD_FILT12_MASK, 0);
4519 nw64_mac(BMAC_ADD_FILT00_MASK, 0);
4520 for (i = 0; i < MAC_NUM_HASH; i++)
4521 nw64_mac(BMAC_HASH_TBL(i), 0);
4522 niu_set_primary_mac_rdc_table(np, first_rdc_table, 1);
4523 niu_set_multicast_mac_rdc_table(np, first_rdc_table, 1);
4524 nw64_mac(BRXMAC_STATUS_MASK, ~(u64)0);
4526 val = nr64_mac(BRXMAC_CONFIG);
4527 val &= ~(BRXMAC_CONFIG_ENABLE |
4528 BRXMAC_CONFIG_STRIP_PAD |
4529 BRXMAC_CONFIG_STRIP_FCS |
4530 BRXMAC_CONFIG_PROMISC |
4531 BRXMAC_CONFIG_PROMISC_GRP |
4532 BRXMAC_CONFIG_ADDR_FILT_EN |
4533 BRXMAC_CONFIG_DISCARD_DIS);
4534 val |= (BRXMAC_CONFIG_HASH_FILT_EN);
4535 nw64_mac(BRXMAC_CONFIG, val);
4537 val = nr64_mac(BMAC_ADDR_CMPEN);
4538 val |= BMAC_ADDR_CMPEN_EN0;
4539 nw64_mac(BMAC_ADDR_CMPEN, val);
4542 static void niu_init_rx_mac(struct niu *np)
4544 niu_set_primary_mac(np, np->dev->dev_addr);
4546 if (np->flags & NIU_FLAGS_XMAC)
4547 niu_init_rx_xmac(np);
4549 niu_init_rx_bmac(np);
4552 static void niu_enable_tx_xmac(struct niu *np, int on)
4554 u64 val = nr64_mac(XMAC_CONFIG);
4557 val |= XMAC_CONFIG_TX_ENABLE;
4559 val &= ~XMAC_CONFIG_TX_ENABLE;
4560 nw64_mac(XMAC_CONFIG, val);
4563 static void niu_enable_tx_bmac(struct niu *np, int on)
4565 u64 val = nr64_mac(BTXMAC_CONFIG);
4568 val |= BTXMAC_CONFIG_ENABLE;
4570 val &= ~BTXMAC_CONFIG_ENABLE;
4571 nw64_mac(BTXMAC_CONFIG, val);
4574 static void niu_enable_tx_mac(struct niu *np, int on)
4576 if (np->flags & NIU_FLAGS_XMAC)
4577 niu_enable_tx_xmac(np, on);
4579 niu_enable_tx_bmac(np, on);
4582 static void niu_enable_rx_xmac(struct niu *np, int on)
4584 u64 val = nr64_mac(XMAC_CONFIG);
4586 val &= ~(XMAC_CONFIG_HASH_FILTER_EN |
4587 XMAC_CONFIG_PROMISCUOUS);
4589 if (np->flags & NIU_FLAGS_MCAST)
4590 val |= XMAC_CONFIG_HASH_FILTER_EN;
4591 if (np->flags & NIU_FLAGS_PROMISC)
4592 val |= XMAC_CONFIG_PROMISCUOUS;
4595 val |= XMAC_CONFIG_RX_MAC_ENABLE;
4597 val &= ~XMAC_CONFIG_RX_MAC_ENABLE;
4598 nw64_mac(XMAC_CONFIG, val);
4601 static void niu_enable_rx_bmac(struct niu *np, int on)
4603 u64 val = nr64_mac(BRXMAC_CONFIG);
4605 val &= ~(BRXMAC_CONFIG_HASH_FILT_EN |
4606 BRXMAC_CONFIG_PROMISC);
4608 if (np->flags & NIU_FLAGS_MCAST)
4609 val |= BRXMAC_CONFIG_HASH_FILT_EN;
4610 if (np->flags & NIU_FLAGS_PROMISC)
4611 val |= BRXMAC_CONFIG_PROMISC;
4614 val |= BRXMAC_CONFIG_ENABLE;
4616 val &= ~BRXMAC_CONFIG_ENABLE;
4617 nw64_mac(BRXMAC_CONFIG, val);
4620 static void niu_enable_rx_mac(struct niu *np, int on)
4622 if (np->flags & NIU_FLAGS_XMAC)
4623 niu_enable_rx_xmac(np, on);
4625 niu_enable_rx_bmac(np, on);
4628 static int niu_init_mac(struct niu *np)
4633 err = niu_init_pcs(np);
4637 err = niu_reset_tx_mac(np);
4640 niu_init_tx_mac(np);
4641 err = niu_reset_rx_mac(np);
4644 niu_init_rx_mac(np);
4646 /* This looks hookey but the RX MAC reset we just did will
4647 * undo some of the state we setup in niu_init_tx_mac() so we
4648 * have to call it again. In particular, the RX MAC reset will
4649 * set the XMAC_MAX register back to it's default value.
4651 niu_init_tx_mac(np);
4652 niu_enable_tx_mac(np, 1);
4654 niu_enable_rx_mac(np, 1);
4659 static void niu_stop_one_tx_channel(struct niu *np, struct tx_ring_info *rp)
4661 (void) niu_tx_channel_stop(np, rp->tx_channel);
4664 static void niu_stop_tx_channels(struct niu *np)
4668 for (i = 0; i < np->num_tx_rings; i++) {
4669 struct tx_ring_info *rp = &np->tx_rings[i];
4671 niu_stop_one_tx_channel(np, rp);
4675 static void niu_reset_one_tx_channel(struct niu *np, struct tx_ring_info *rp)
4677 (void) niu_tx_channel_reset(np, rp->tx_channel);
4680 static void niu_reset_tx_channels(struct niu *np)
4684 for (i = 0; i < np->num_tx_rings; i++) {
4685 struct tx_ring_info *rp = &np->tx_rings[i];
4687 niu_reset_one_tx_channel(np, rp);
4691 static void niu_stop_one_rx_channel(struct niu *np, struct rx_ring_info *rp)
4693 (void) niu_enable_rx_channel(np, rp->rx_channel, 0);
4696 static void niu_stop_rx_channels(struct niu *np)
4700 for (i = 0; i < np->num_rx_rings; i++) {
4701 struct rx_ring_info *rp = &np->rx_rings[i];
4703 niu_stop_one_rx_channel(np, rp);
4707 static void niu_reset_one_rx_channel(struct niu *np, struct rx_ring_info *rp)
4709 int channel = rp->rx_channel;
4711 (void) niu_rx_channel_reset(np, channel);
4712 nw64(RX_DMA_ENT_MSK(channel), RX_DMA_ENT_MSK_ALL);
4713 nw64(RX_DMA_CTL_STAT(channel), 0);
4714 (void) niu_enable_rx_channel(np, channel, 0);
4717 static void niu_reset_rx_channels(struct niu *np)
4721 for (i = 0; i < np->num_rx_rings; i++) {
4722 struct rx_ring_info *rp = &np->rx_rings[i];
4724 niu_reset_one_rx_channel(np, rp);
4728 static void niu_disable_ipp(struct niu *np)
4733 rd = nr64_ipp(IPP_DFIFO_RD_PTR);
4734 wr = nr64_ipp(IPP_DFIFO_WR_PTR);
4736 while (--limit >= 0 && (rd != wr)) {
4737 rd = nr64_ipp(IPP_DFIFO_RD_PTR);
4738 wr = nr64_ipp(IPP_DFIFO_WR_PTR);
4741 (rd != 0 && wr != 1)) {
4742 dev_err(np->device, PFX "%s: IPP would not quiesce, "
4743 "rd_ptr[%llx] wr_ptr[%llx]\n",
4745 (unsigned long long) nr64_ipp(IPP_DFIFO_RD_PTR),
4746 (unsigned long long) nr64_ipp(IPP_DFIFO_WR_PTR));
4749 val = nr64_ipp(IPP_CFIG);
4750 val &= ~(IPP_CFIG_IPP_ENABLE |
4751 IPP_CFIG_DFIFO_ECC_EN |
4752 IPP_CFIG_DROP_BAD_CRC |
4754 nw64_ipp(IPP_CFIG, val);
4756 (void) niu_ipp_reset(np);
4759 static int niu_init_hw(struct niu *np)
4763 niudbg(IFUP, "%s: Initialize TXC\n", np->dev->name);
4764 niu_txc_enable_port(np, 1);
4765 niu_txc_port_dma_enable(np, 1);
4766 niu_txc_set_imask(np, 0);
4768 niudbg(IFUP, "%s: Initialize TX channels\n", np->dev->name);
4769 for (i = 0; i < np->num_tx_rings; i++) {
4770 struct tx_ring_info *rp = &np->tx_rings[i];
4772 err = niu_init_one_tx_channel(np, rp);
4777 niudbg(IFUP, "%s: Initialize RX channels\n", np->dev->name);
4778 err = niu_init_rx_channels(np);
4780 goto out_uninit_tx_channels;
4782 niudbg(IFUP, "%s: Initialize classifier\n", np->dev->name);
4783 err = niu_init_classifier_hw(np);
4785 goto out_uninit_rx_channels;
4787 niudbg(IFUP, "%s: Initialize ZCP\n", np->dev->name);
4788 err = niu_init_zcp(np);
4790 goto out_uninit_rx_channels;
4792 niudbg(IFUP, "%s: Initialize IPP\n", np->dev->name);
4793 err = niu_init_ipp(np);
4795 goto out_uninit_rx_channels;
4797 niudbg(IFUP, "%s: Initialize MAC\n", np->dev->name);
4798 err = niu_init_mac(np);
4800 goto out_uninit_ipp;
4805 niudbg(IFUP, "%s: Uninit IPP\n", np->dev->name);
4806 niu_disable_ipp(np);
4808 out_uninit_rx_channels:
4809 niudbg(IFUP, "%s: Uninit RX channels\n", np->dev->name);
4810 niu_stop_rx_channels(np);
4811 niu_reset_rx_channels(np);
4813 out_uninit_tx_channels:
4814 niudbg(IFUP, "%s: Uninit TX channels\n", np->dev->name);
4815 niu_stop_tx_channels(np);
4816 niu_reset_tx_channels(np);
4821 static void niu_stop_hw(struct niu *np)
4823 niudbg(IFDOWN, "%s: Disable interrupts\n", np->dev->name);
4824 niu_enable_interrupts(np, 0);
4826 niudbg(IFDOWN, "%s: Disable RX MAC\n", np->dev->name);
4827 niu_enable_rx_mac(np, 0);
4829 niudbg(IFDOWN, "%s: Disable IPP\n", np->dev->name);
4830 niu_disable_ipp(np);
4832 niudbg(IFDOWN, "%s: Stop TX channels\n", np->dev->name);
4833 niu_stop_tx_channels(np);
4835 niudbg(IFDOWN, "%s: Stop RX channels\n", np->dev->name);
4836 niu_stop_rx_channels(np);
4838 niudbg(IFDOWN, "%s: Reset TX channels\n", np->dev->name);
4839 niu_reset_tx_channels(np);
4841 niudbg(IFDOWN, "%s: Reset RX channels\n", np->dev->name);
4842 niu_reset_rx_channels(np);
4845 static int niu_request_irq(struct niu *np)
4850 for (i = 0; i < np->num_ldg; i++) {
4851 struct niu_ldg *lp = &np->ldg[i];
4853 err = request_irq(lp->irq, niu_interrupt,
4854 IRQF_SHARED | IRQF_SAMPLE_RANDOM,
4864 for (j = 0; j < i; j++) {
4865 struct niu_ldg *lp = &np->ldg[j];
4867 free_irq(lp->irq, lp);
4872 static void niu_free_irq(struct niu *np)
4876 for (i = 0; i < np->num_ldg; i++) {
4877 struct niu_ldg *lp = &np->ldg[i];
4879 free_irq(lp->irq, lp);
4883 static void niu_enable_napi(struct niu *np)
4887 for (i = 0; i < np->num_ldg; i++)
4888 napi_enable(&np->ldg[i].napi);
4891 static void niu_disable_napi(struct niu *np)
4895 for (i = 0; i < np->num_ldg; i++)
4896 napi_disable(&np->ldg[i].napi);
4899 static int niu_open(struct net_device *dev)
4901 struct niu *np = netdev_priv(dev);
4904 netif_carrier_off(dev);
4906 err = niu_alloc_channels(np);
4910 err = niu_enable_interrupts(np, 0);
4912 goto out_free_channels;
4914 err = niu_request_irq(np);
4916 goto out_free_channels;
4918 niu_enable_napi(np);
4920 spin_lock_irq(&np->lock);
4922 err = niu_init_hw(np);
4924 init_timer(&np->timer);
4925 np->timer.expires = jiffies + HZ;
4926 np->timer.data = (unsigned long) np;
4927 np->timer.function = niu_timer;
4929 err = niu_enable_interrupts(np, 1);
4934 spin_unlock_irq(&np->lock);
4937 niu_disable_napi(np);
4941 netif_start_queue(dev);
4943 if (np->link_config.loopback_mode != LOOPBACK_DISABLED)
4944 netif_carrier_on(dev);
4946 add_timer(&np->timer);
4954 niu_free_channels(np);
4960 static void niu_full_shutdown(struct niu *np, struct net_device *dev)
4962 cancel_work_sync(&np->reset_task);
4964 niu_disable_napi(np);
4965 netif_stop_queue(dev);
4967 del_timer_sync(&np->timer);
4969 spin_lock_irq(&np->lock);
4973 spin_unlock_irq(&np->lock);
4976 static int niu_close(struct net_device *dev)
4978 struct niu *np = netdev_priv(dev);
4980 niu_full_shutdown(np, dev);
4984 niu_free_channels(np);
4986 niu_handle_led(np, 0);
4991 static void niu_sync_xmac_stats(struct niu *np)
4993 struct niu_xmac_stats *mp = &np->mac_stats.xmac;
4995 mp->tx_frames += nr64_mac(TXMAC_FRM_CNT);
4996 mp->tx_bytes += nr64_mac(TXMAC_BYTE_CNT);
4998 mp->rx_link_faults += nr64_mac(LINK_FAULT_CNT);
4999 mp->rx_align_errors += nr64_mac(RXMAC_ALIGN_ERR_CNT);
5000 mp->rx_frags += nr64_mac(RXMAC_FRAG_CNT);
5001 mp->rx_mcasts += nr64_mac(RXMAC_MC_FRM_CNT);
5002 mp->rx_bcasts += nr64_mac(RXMAC_BC_FRM_CNT);
5003 mp->rx_hist_cnt1 += nr64_mac(RXMAC_HIST_CNT1);
5004 mp->rx_hist_cnt2 += nr64_mac(RXMAC_HIST_CNT2);
5005 mp->rx_hist_cnt3 += nr64_mac(RXMAC_HIST_CNT3);
5006 mp->rx_hist_cnt4 += nr64_mac(RXMAC_HIST_CNT4);
5007 mp->rx_hist_cnt5 += nr64_mac(RXMAC_HIST_CNT5);
5008 mp->rx_hist_cnt6 += nr64_mac(RXMAC_HIST_CNT6);
5009 mp->rx_hist_cnt7 += nr64_mac(RXMAC_HIST_CNT7);
5010 mp->rx_octets += nr64_mac(RXMAC_BT_CNT);
5011 mp->rx_code_violations += nr64_mac(RXMAC_CD_VIO_CNT);
5012 mp->rx_len_errors += nr64_mac(RXMAC_MPSZER_CNT);
5013 mp->rx_crc_errors += nr64_mac(RXMAC_CRC_ER_CNT);
5016 static void niu_sync_bmac_stats(struct niu *np)
5018 struct niu_bmac_stats *mp = &np->mac_stats.bmac;
5020 mp->tx_bytes += nr64_mac(BTXMAC_BYTE_CNT);
5021 mp->tx_frames += nr64_mac(BTXMAC_FRM_CNT);
5023 mp->rx_frames += nr64_mac(BRXMAC_FRAME_CNT);
5024 mp->rx_align_errors += nr64_mac(BRXMAC_ALIGN_ERR_CNT);
5025 mp->rx_crc_errors += nr64_mac(BRXMAC_ALIGN_ERR_CNT);
5026 mp->rx_len_errors += nr64_mac(BRXMAC_CODE_VIOL_ERR_CNT);
5029 static void niu_sync_mac_stats(struct niu *np)
5031 if (np->flags & NIU_FLAGS_XMAC)
5032 niu_sync_xmac_stats(np);
5034 niu_sync_bmac_stats(np);
5037 static void niu_get_rx_stats(struct niu *np)
5039 unsigned long pkts, dropped, errors, bytes;
5042 pkts = dropped = errors = bytes = 0;
5043 for (i = 0; i < np->num_rx_rings; i++) {
5044 struct rx_ring_info *rp = &np->rx_rings[i];
5046 pkts += rp->rx_packets;
5047 bytes += rp->rx_bytes;
5048 dropped += rp->rx_dropped;
5049 errors += rp->rx_errors;
5051 np->net_stats.rx_packets = pkts;
5052 np->net_stats.rx_bytes = bytes;
5053 np->net_stats.rx_dropped = dropped;
5054 np->net_stats.rx_errors = errors;
5057 static void niu_get_tx_stats(struct niu *np)
5059 unsigned long pkts, errors, bytes;
5062 pkts = errors = bytes = 0;
5063 for (i = 0; i < np->num_tx_rings; i++) {
5064 struct tx_ring_info *rp = &np->tx_rings[i];
5066 pkts += rp->tx_packets;
5067 bytes += rp->tx_bytes;
5068 errors += rp->tx_errors;
5070 np->net_stats.tx_packets = pkts;
5071 np->net_stats.tx_bytes = bytes;
5072 np->net_stats.tx_errors = errors;
5075 static struct net_device_stats *niu_get_stats(struct net_device *dev)
5077 struct niu *np = netdev_priv(dev);
5079 niu_get_rx_stats(np);
5080 niu_get_tx_stats(np);
5082 return &np->net_stats;
5085 static void niu_load_hash_xmac(struct niu *np, u16 *hash)
5089 for (i = 0; i < 16; i++)
5090 nw64_mac(XMAC_HASH_TBL(i), hash[i]);
5093 static void niu_load_hash_bmac(struct niu *np, u16 *hash)
5097 for (i = 0; i < 16; i++)
5098 nw64_mac(BMAC_HASH_TBL(i), hash[i]);
5101 static void niu_load_hash(struct niu *np, u16 *hash)
5103 if (np->flags & NIU_FLAGS_XMAC)
5104 niu_load_hash_xmac(np, hash);
5106 niu_load_hash_bmac(np, hash);
5109 static void niu_set_rx_mode(struct net_device *dev)
5111 struct niu *np = netdev_priv(dev);
5112 int i, alt_cnt, err;
5113 struct dev_addr_list *addr;
5114 unsigned long flags;
5115 u16 hash[16] = { 0, };
5117 spin_lock_irqsave(&np->lock, flags);
5118 niu_enable_rx_mac(np, 0);
5120 np->flags &= ~(NIU_FLAGS_MCAST | NIU_FLAGS_PROMISC);
5121 if (dev->flags & IFF_PROMISC)
5122 np->flags |= NIU_FLAGS_PROMISC;
5123 if ((dev->flags & IFF_ALLMULTI) || (dev->mc_count > 0))
5124 np->flags |= NIU_FLAGS_MCAST;
5126 alt_cnt = dev->uc_count;
5127 if (alt_cnt > niu_num_alt_addr(np)) {
5129 np->flags |= NIU_FLAGS_PROMISC;
5135 for (addr = dev->uc_list; addr; addr = addr->next) {
5136 err = niu_set_alt_mac(np, index,
5139 printk(KERN_WARNING PFX "%s: Error %d "
5140 "adding alt mac %d\n",
5141 dev->name, err, index);
5142 err = niu_enable_alt_mac(np, index, 1);
5144 printk(KERN_WARNING PFX "%s: Error %d "
5145 "enabling alt mac %d\n",
5146 dev->name, err, index);
5152 if (np->flags & NIU_FLAGS_XMAC)
5156 for (i = alt_start; i < niu_num_alt_addr(np); i++) {
5157 err = niu_enable_alt_mac(np, i, 0);
5159 printk(KERN_WARNING PFX "%s: Error %d "
5160 "disabling alt mac %d\n",
5164 if (dev->flags & IFF_ALLMULTI) {
5165 for (i = 0; i < 16; i++)
5167 } else if (dev->mc_count > 0) {
5168 for (addr = dev->mc_list; addr; addr = addr->next) {
5169 u32 crc = ether_crc_le(ETH_ALEN, addr->da_addr);
5172 hash[crc >> 4] |= (1 << (15 - (crc & 0xf)));
5176 if (np->flags & NIU_FLAGS_MCAST)
5177 niu_load_hash(np, hash);
5179 niu_enable_rx_mac(np, 1);
5180 spin_unlock_irqrestore(&np->lock, flags);
5183 static int niu_set_mac_addr(struct net_device *dev, void *p)
5185 struct niu *np = netdev_priv(dev);
5186 struct sockaddr *addr = p;
5187 unsigned long flags;
5189 if (!is_valid_ether_addr(addr->sa_data))
5192 memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
5194 if (!netif_running(dev))
5197 spin_lock_irqsave(&np->lock, flags);
5198 niu_enable_rx_mac(np, 0);
5199 niu_set_primary_mac(np, dev->dev_addr);
5200 niu_enable_rx_mac(np, 1);
5201 spin_unlock_irqrestore(&np->lock, flags);
5206 static int niu_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
5211 static void niu_netif_stop(struct niu *np)
5213 np->dev->trans_start = jiffies; /* prevent tx timeout */
5215 niu_disable_napi(np);
5217 netif_tx_disable(np->dev);
5220 static void niu_netif_start(struct niu *np)
5222 /* NOTE: unconditional netif_wake_queue is only appropriate
5223 * so long as all callers are assured to have free tx slots
5224 * (such as after niu_init_hw).
5226 netif_wake_queue(np->dev);
5228 niu_enable_napi(np);
5230 niu_enable_interrupts(np, 1);
5233 static void niu_reset_task(struct work_struct *work)
5235 struct niu *np = container_of(work, struct niu, reset_task);
5236 unsigned long flags;
5239 spin_lock_irqsave(&np->lock, flags);
5240 if (!netif_running(np->dev)) {
5241 spin_unlock_irqrestore(&np->lock, flags);
5245 spin_unlock_irqrestore(&np->lock, flags);
5247 del_timer_sync(&np->timer);
5251 spin_lock_irqsave(&np->lock, flags);
5255 err = niu_init_hw(np);
5257 np->timer.expires = jiffies + HZ;
5258 add_timer(&np->timer);
5259 niu_netif_start(np);
5262 spin_unlock_irqrestore(&np->lock, flags);
5265 static void niu_tx_timeout(struct net_device *dev)
5267 struct niu *np = netdev_priv(dev);
5269 dev_err(np->device, PFX "%s: Transmit timed out, resetting\n",
5272 schedule_work(&np->reset_task);
5275 static void niu_set_txd(struct tx_ring_info *rp, int index,
5276 u64 mapping, u64 len, u64 mark,
5279 __le64 *desc = &rp->descr[index];
5281 *desc = cpu_to_le64(mark |
5282 (n_frags << TX_DESC_NUM_PTR_SHIFT) |
5283 (len << TX_DESC_TR_LEN_SHIFT) |
5284 (mapping & TX_DESC_SAD));
5287 static u64 niu_compute_tx_flags(struct sk_buff *skb, struct ethhdr *ehdr,
5288 u64 pad_bytes, u64 len)
5290 u16 eth_proto, eth_proto_inner;
5291 u64 csum_bits, l3off, ihl, ret;
5295 eth_proto = be16_to_cpu(ehdr->h_proto);
5296 eth_proto_inner = eth_proto;
5297 if (eth_proto == ETH_P_8021Q) {
5298 struct vlan_ethhdr *vp = (struct vlan_ethhdr *) ehdr;
5299 __be16 val = vp->h_vlan_encapsulated_proto;
5301 eth_proto_inner = be16_to_cpu(val);
5305 switch (skb->protocol) {
5306 case __constant_htons(ETH_P_IP):
5307 ip_proto = ip_hdr(skb)->protocol;
5308 ihl = ip_hdr(skb)->ihl;
5310 case __constant_htons(ETH_P_IPV6):
5311 ip_proto = ipv6_hdr(skb)->nexthdr;
5320 csum_bits = TXHDR_CSUM_NONE;
5321 if (skb->ip_summed == CHECKSUM_PARTIAL) {
5324 csum_bits = (ip_proto == IPPROTO_TCP ?
5326 (ip_proto == IPPROTO_UDP ?
5327 TXHDR_CSUM_UDP : TXHDR_CSUM_SCTP));
5329 start = skb_transport_offset(skb) -
5330 (pad_bytes + sizeof(struct tx_pkt_hdr));
5331 stuff = start + skb->csum_offset;
5333 csum_bits |= (start / 2) << TXHDR_L4START_SHIFT;
5334 csum_bits |= (stuff / 2) << TXHDR_L4STUFF_SHIFT;
5337 l3off = skb_network_offset(skb) -
5338 (pad_bytes + sizeof(struct tx_pkt_hdr));
5340 ret = (((pad_bytes / 2) << TXHDR_PAD_SHIFT) |
5341 (len << TXHDR_LEN_SHIFT) |
5342 ((l3off / 2) << TXHDR_L3START_SHIFT) |
5343 (ihl << TXHDR_IHL_SHIFT) |
5344 ((eth_proto_inner < 1536) ? TXHDR_LLC : 0) |
5345 ((eth_proto == ETH_P_8021Q) ? TXHDR_VLAN : 0) |
5346 (ipv6 ? TXHDR_IP_VER : 0) |
5352 static struct tx_ring_info *tx_ring_select(struct niu *np, struct sk_buff *skb)
5354 return &np->tx_rings[0];
5357 static int niu_start_xmit(struct sk_buff *skb, struct net_device *dev)
5359 struct niu *np = netdev_priv(dev);
5360 unsigned long align, headroom;
5361 struct tx_ring_info *rp;
5362 struct tx_pkt_hdr *tp;
5363 unsigned int len, nfg;
5364 struct ethhdr *ehdr;
5368 rp = tx_ring_select(np, skb);
5370 if (niu_tx_avail(rp) <= (skb_shinfo(skb)->nr_frags + 1)) {
5371 netif_stop_queue(dev);
5372 dev_err(np->device, PFX "%s: BUG! Tx ring full when "
5373 "queue awake!\n", dev->name);
5375 return NETDEV_TX_BUSY;
5378 if (skb->len < ETH_ZLEN) {
5379 unsigned int pad_bytes = ETH_ZLEN - skb->len;
5381 if (skb_pad(skb, pad_bytes))
5383 skb_put(skb, pad_bytes);
5386 len = sizeof(struct tx_pkt_hdr) + 15;
5387 if (skb_headroom(skb) < len) {
5388 struct sk_buff *skb_new;
5390 skb_new = skb_realloc_headroom(skb, len);
5400 align = ((unsigned long) skb->data & (16 - 1));
5401 headroom = align + sizeof(struct tx_pkt_hdr);
5403 ehdr = (struct ethhdr *) skb->data;
5404 tp = (struct tx_pkt_hdr *) skb_push(skb, headroom);
5406 len = skb->len - sizeof(struct tx_pkt_hdr);
5407 tp->flags = cpu_to_le64(niu_compute_tx_flags(skb, ehdr, align, len));
5410 len = skb_headlen(skb);
5411 mapping = np->ops->map_single(np->device, skb->data,
5412 len, DMA_TO_DEVICE);
5416 rp->tx_buffs[prod].skb = skb;
5417 rp->tx_buffs[prod].mapping = mapping;
5420 if (++rp->mark_counter == rp->mark_freq) {
5421 rp->mark_counter = 0;
5422 mrk |= TX_DESC_MARK;
5427 nfg = skb_shinfo(skb)->nr_frags;
5429 tlen -= MAX_TX_DESC_LEN;
5434 unsigned int this_len = len;
5436 if (this_len > MAX_TX_DESC_LEN)
5437 this_len = MAX_TX_DESC_LEN;
5439 niu_set_txd(rp, prod, mapping, this_len, mrk, nfg);
5442 prod = NEXT_TX(rp, prod);
5443 mapping += this_len;
5447 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
5448 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
5451 mapping = np->ops->map_page(np->device, frag->page,
5452 frag->page_offset, len,
5455 rp->tx_buffs[prod].skb = NULL;
5456 rp->tx_buffs[prod].mapping = mapping;
5458 niu_set_txd(rp, prod, mapping, len, 0, 0);
5460 prod = NEXT_TX(rp, prod);
5463 if (prod < rp->prod)
5464 rp->wrap_bit ^= TX_RING_KICK_WRAP;
5467 nw64(TX_RING_KICK(rp->tx_channel), rp->wrap_bit | (prod << 3));
5469 if (unlikely(niu_tx_avail(rp) <= (MAX_SKB_FRAGS + 1))) {
5470 netif_stop_queue(dev);
5471 if (niu_tx_avail(rp) > NIU_TX_WAKEUP_THRESH(rp))
5472 netif_wake_queue(dev);
5475 dev->trans_start = jiffies;
5478 return NETDEV_TX_OK;
5486 static int niu_change_mtu(struct net_device *dev, int new_mtu)
5488 struct niu *np = netdev_priv(dev);
5489 int err, orig_jumbo, new_jumbo;
5491 if (new_mtu < 68 || new_mtu > NIU_MAX_MTU)
5494 orig_jumbo = (dev->mtu > ETH_DATA_LEN);
5495 new_jumbo = (new_mtu > ETH_DATA_LEN);
5499 if (!netif_running(dev) ||
5500 (orig_jumbo == new_jumbo))
5503 niu_full_shutdown(np, dev);
5505 niu_free_channels(np);
5507 niu_enable_napi(np);
5509 err = niu_alloc_channels(np);
5513 spin_lock_irq(&np->lock);
5515 err = niu_init_hw(np);
5517 init_timer(&np->timer);
5518 np->timer.expires = jiffies + HZ;
5519 np->timer.data = (unsigned long) np;
5520 np->timer.function = niu_timer;
5522 err = niu_enable_interrupts(np, 1);
5527 spin_unlock_irq(&np->lock);
5530 netif_start_queue(dev);
5531 if (np->link_config.loopback_mode != LOOPBACK_DISABLED)
5532 netif_carrier_on(dev);
5534 add_timer(&np->timer);
5540 static void niu_get_drvinfo(struct net_device *dev,
5541 struct ethtool_drvinfo *info)
5543 struct niu *np = netdev_priv(dev);
5544 struct niu_vpd *vpd = &np->vpd;
5546 strcpy(info->driver, DRV_MODULE_NAME);
5547 strcpy(info->version, DRV_MODULE_VERSION);
5548 sprintf(info->fw_version, "%d.%d",
5549 vpd->fcode_major, vpd->fcode_minor);
5550 if (np->parent->plat_type != PLAT_TYPE_NIU)
5551 strcpy(info->bus_info, pci_name(np->pdev));
5554 static int niu_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
5556 struct niu *np = netdev_priv(dev);
5557 struct niu_link_config *lp;
5559 lp = &np->link_config;
5561 memset(cmd, 0, sizeof(*cmd));
5562 cmd->phy_address = np->phy_addr;
5563 cmd->supported = lp->supported;
5564 cmd->advertising = lp->advertising;
5565 cmd->autoneg = lp->autoneg;
5566 cmd->speed = lp->active_speed;
5567 cmd->duplex = lp->active_duplex;
5572 static int niu_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
5577 static u32 niu_get_msglevel(struct net_device *dev)
5579 struct niu *np = netdev_priv(dev);
5580 return np->msg_enable;
5583 static void niu_set_msglevel(struct net_device *dev, u32 value)
5585 struct niu *np = netdev_priv(dev);
5586 np->msg_enable = value;
5589 static int niu_get_eeprom_len(struct net_device *dev)
5591 struct niu *np = netdev_priv(dev);
5593 return np->eeprom_len;
5596 static int niu_get_eeprom(struct net_device *dev,
5597 struct ethtool_eeprom *eeprom, u8 *data)
5599 struct niu *np = netdev_priv(dev);
5600 u32 offset, len, val;
5602 offset = eeprom->offset;
5605 if (offset + len < offset)
5607 if (offset >= np->eeprom_len)
5609 if (offset + len > np->eeprom_len)
5610 len = eeprom->len = np->eeprom_len - offset;
5613 u32 b_offset, b_count;
5615 b_offset = offset & 3;
5616 b_count = 4 - b_offset;
5620 val = nr64(ESPC_NCR((offset - b_offset) / 4));
5621 memcpy(data, ((char *)&val) + b_offset, b_count);
5627 val = nr64(ESPC_NCR(offset / 4));
5628 memcpy(data, &val, 4);
5634 val = nr64(ESPC_NCR(offset / 4));
5635 memcpy(data, &val, len);
5640 static const struct {
5641 const char string[ETH_GSTRING_LEN];
5642 } niu_xmac_stat_keys[] = {
5645 { "tx_fifo_errors" },
5646 { "tx_overflow_errors" },
5647 { "tx_max_pkt_size_errors" },
5648 { "tx_underflow_errors" },
5649 { "rx_local_faults" },
5650 { "rx_remote_faults" },
5651 { "rx_link_faults" },
5652 { "rx_align_errors" },
5664 { "rx_code_violations" },
5665 { "rx_len_errors" },
5666 { "rx_crc_errors" },
5667 { "rx_underflows" },
5669 { "pause_off_state" },
5670 { "pause_on_state" },
5671 { "pause_received" },
5674 #define NUM_XMAC_STAT_KEYS ARRAY_SIZE(niu_xmac_stat_keys)
5676 static const struct {
5677 const char string[ETH_GSTRING_LEN];
5678 } niu_bmac_stat_keys[] = {
5679 { "tx_underflow_errors" },
5680 { "tx_max_pkt_size_errors" },
5685 { "rx_align_errors" },
5686 { "rx_crc_errors" },
5687 { "rx_len_errors" },
5688 { "pause_off_state" },
5689 { "pause_on_state" },
5690 { "pause_received" },
5693 #define NUM_BMAC_STAT_KEYS ARRAY_SIZE(niu_bmac_stat_keys)
5695 static const struct {
5696 const char string[ETH_GSTRING_LEN];
5697 } niu_rxchan_stat_keys[] = {
5705 #define NUM_RXCHAN_STAT_KEYS ARRAY_SIZE(niu_rxchan_stat_keys)
5707 static const struct {
5708 const char string[ETH_GSTRING_LEN];
5709 } niu_txchan_stat_keys[] = {
5716 #define NUM_TXCHAN_STAT_KEYS ARRAY_SIZE(niu_txchan_stat_keys)
5718 static void niu_get_strings(struct net_device *dev, u32 stringset, u8 *data)
5720 struct niu *np = netdev_priv(dev);
5723 if (stringset != ETH_SS_STATS)
5726 if (np->flags & NIU_FLAGS_XMAC) {
5727 memcpy(data, niu_xmac_stat_keys,
5728 sizeof(niu_xmac_stat_keys));
5729 data += sizeof(niu_xmac_stat_keys);
5731 memcpy(data, niu_bmac_stat_keys,
5732 sizeof(niu_bmac_stat_keys));
5733 data += sizeof(niu_bmac_stat_keys);
5735 for (i = 0; i < np->num_rx_rings; i++) {
5736 memcpy(data, niu_rxchan_stat_keys,
5737 sizeof(niu_rxchan_stat_keys));
5738 data += sizeof(niu_rxchan_stat_keys);
5740 for (i = 0; i < np->num_tx_rings; i++) {
5741 memcpy(data, niu_txchan_stat_keys,
5742 sizeof(niu_txchan_stat_keys));
5743 data += sizeof(niu_txchan_stat_keys);
5747 static int niu_get_stats_count(struct net_device *dev)
5749 struct niu *np = netdev_priv(dev);
5751 return ((np->flags & NIU_FLAGS_XMAC ?
5752 NUM_XMAC_STAT_KEYS :
5753 NUM_BMAC_STAT_KEYS) +
5754 (np->num_rx_rings * NUM_RXCHAN_STAT_KEYS) +
5755 (np->num_tx_rings * NUM_TXCHAN_STAT_KEYS));
5758 static void niu_get_ethtool_stats(struct net_device *dev,
5759 struct ethtool_stats *stats, u64 *data)
5761 struct niu *np = netdev_priv(dev);
5764 niu_sync_mac_stats(np);
5765 if (np->flags & NIU_FLAGS_XMAC) {
5766 memcpy(data, &np->mac_stats.xmac,
5767 sizeof(struct niu_xmac_stats));
5768 data += (sizeof(struct niu_xmac_stats) / sizeof(u64));
5770 memcpy(data, &np->mac_stats.bmac,
5771 sizeof(struct niu_bmac_stats));
5772 data += (sizeof(struct niu_bmac_stats) / sizeof(u64));
5774 for (i = 0; i < np->num_rx_rings; i++) {
5775 struct rx_ring_info *rp = &np->rx_rings[i];
5777 data[0] = rp->rx_channel;
5778 data[1] = rp->rx_packets;
5779 data[2] = rp->rx_bytes;
5780 data[3] = rp->rx_dropped;
5781 data[4] = rp->rx_errors;
5784 for (i = 0; i < np->num_tx_rings; i++) {
5785 struct tx_ring_info *rp = &np->tx_rings[i];
5787 data[0] = rp->tx_channel;
5788 data[1] = rp->tx_packets;
5789 data[2] = rp->tx_bytes;
5790 data[3] = rp->tx_errors;
5795 static u64 niu_led_state_save(struct niu *np)
5797 if (np->flags & NIU_FLAGS_XMAC)
5798 return nr64_mac(XMAC_CONFIG);
5800 return nr64_mac(BMAC_XIF_CONFIG);
5803 static void niu_led_state_restore(struct niu *np, u64 val)
5805 if (np->flags & NIU_FLAGS_XMAC)
5806 nw64_mac(XMAC_CONFIG, val);
5808 nw64_mac(BMAC_XIF_CONFIG, val);
5811 static void niu_force_led(struct niu *np, int on)
5815 if (np->flags & NIU_FLAGS_XMAC) {
5817 bit = XMAC_CONFIG_FORCE_LED_ON;
5819 reg = BMAC_XIF_CONFIG;
5820 bit = BMAC_XIF_CONFIG_LINK_LED;
5823 val = nr64_mac(reg);
5831 static int niu_phys_id(struct net_device *dev, u32 data)
5833 struct niu *np = netdev_priv(dev);
5837 if (!netif_running(dev))
5843 orig_led_state = niu_led_state_save(np);
5844 for (i = 0; i < (data * 2); i++) {
5845 int on = ((i % 2) == 0);
5847 niu_force_led(np, on);
5849 if (msleep_interruptible(500))
5852 niu_led_state_restore(np, orig_led_state);
5857 static const struct ethtool_ops niu_ethtool_ops = {
5858 .get_drvinfo = niu_get_drvinfo,
5859 .get_link = ethtool_op_get_link,
5860 .get_msglevel = niu_get_msglevel,
5861 .set_msglevel = niu_set_msglevel,
5862 .get_eeprom_len = niu_get_eeprom_len,
5863 .get_eeprom = niu_get_eeprom,
5864 .get_settings = niu_get_settings,
5865 .set_settings = niu_set_settings,
5866 .get_strings = niu_get_strings,
5867 .get_stats_count = niu_get_stats_count,
5868 .get_ethtool_stats = niu_get_ethtool_stats,
5869 .phys_id = niu_phys_id,
5872 static int niu_ldg_assign_ldn(struct niu *np, struct niu_parent *parent,
5875 if (ldg < NIU_LDG_MIN || ldg > NIU_LDG_MAX)
5877 if (ldn < 0 || ldn > LDN_MAX)
5880 parent->ldg_map[ldn] = ldg;
5882 if (np->parent->plat_type == PLAT_TYPE_NIU) {
5883 /* On N2 NIU, the ldn-->ldg assignments are setup and fixed by
5884 * the firmware, and we're not supposed to change them.
5885 * Validate the mapping, because if it's wrong we probably
5886 * won't get any interrupts and that's painful to debug.
5888 if (nr64(LDG_NUM(ldn)) != ldg) {
5889 dev_err(np->device, PFX "Port %u, mis-matched "
5891 "for ldn %d, should be %d is %llu\n",
5893 (unsigned long long) nr64(LDG_NUM(ldn)));
5897 nw64(LDG_NUM(ldn), ldg);
5902 static int niu_set_ldg_timer_res(struct niu *np, int res)
5904 if (res < 0 || res > LDG_TIMER_RES_VAL)
5908 nw64(LDG_TIMER_RES, res);
5913 static int niu_set_ldg_sid(struct niu *np, int ldg, int func, int vector)
5915 if ((ldg < NIU_LDG_MIN || ldg > NIU_LDG_MAX) ||
5916 (func < 0 || func > 3) ||
5917 (vector < 0 || vector > 0x1f))
5920 nw64(SID(ldg), (func << SID_FUNC_SHIFT) | vector);
5925 static int __devinit niu_pci_eeprom_read(struct niu *np, u32 addr)
5927 u64 frame, frame_base = (ESPC_PIO_STAT_READ_START |
5928 (addr << ESPC_PIO_STAT_ADDR_SHIFT));
5931 if (addr > (ESPC_PIO_STAT_ADDR >> ESPC_PIO_STAT_ADDR_SHIFT))
5935 nw64(ESPC_PIO_STAT, frame);
5939 frame = nr64(ESPC_PIO_STAT);
5940 if (frame & ESPC_PIO_STAT_READ_END)
5943 if (!(frame & ESPC_PIO_STAT_READ_END)) {
5944 dev_err(np->device, PFX "EEPROM read timeout frame[%llx]\n",
5945 (unsigned long long) frame);
5950 nw64(ESPC_PIO_STAT, frame);
5954 frame = nr64(ESPC_PIO_STAT);
5955 if (frame & ESPC_PIO_STAT_READ_END)
5958 if (!(frame & ESPC_PIO_STAT_READ_END)) {
5959 dev_err(np->device, PFX "EEPROM read timeout frame[%llx]\n",
5960 (unsigned long long) frame);
5964 frame = nr64(ESPC_PIO_STAT);
5965 return (frame & ESPC_PIO_STAT_DATA) >> ESPC_PIO_STAT_DATA_SHIFT;
5968 static int __devinit niu_pci_eeprom_read16(struct niu *np, u32 off)
5970 int err = niu_pci_eeprom_read(np, off);
5976 err = niu_pci_eeprom_read(np, off + 1);
5979 val |= (err & 0xff);
5984 static int __devinit niu_pci_eeprom_read16_swp(struct niu *np, u32 off)
5986 int err = niu_pci_eeprom_read(np, off);
5993 err = niu_pci_eeprom_read(np, off + 1);
5997 val |= (err & 0xff) << 8;
6002 static int __devinit niu_pci_vpd_get_propname(struct niu *np,
6009 for (i = 0; i < namebuf_len; i++) {
6010 int err = niu_pci_eeprom_read(np, off + i);
6017 if (i >= namebuf_len)
6023 static void __devinit niu_vpd_parse_version(struct niu *np)
6025 struct niu_vpd *vpd = &np->vpd;
6026 int len = strlen(vpd->version) + 1;
6027 const char *s = vpd->version;
6030 for (i = 0; i < len - 5; i++) {
6031 if (!strncmp(s + i, "FCode ", 5))
6038 sscanf(s, "%d.%d", &vpd->fcode_major, &vpd->fcode_minor);
6040 niudbg(PROBE, "VPD_SCAN: FCODE major(%d) minor(%d)\n",
6041 vpd->fcode_major, vpd->fcode_minor);
6042 if (vpd->fcode_major > NIU_VPD_MIN_MAJOR ||
6043 (vpd->fcode_major == NIU_VPD_MIN_MAJOR &&
6044 vpd->fcode_minor >= NIU_VPD_MIN_MINOR))
6045 np->flags |= NIU_FLAGS_VPD_VALID;
6048 /* ESPC_PIO_EN_ENABLE must be set */
6049 static int __devinit niu_pci_vpd_scan_props(struct niu *np,
6052 unsigned int found_mask = 0;
6053 #define FOUND_MASK_MODEL 0x00000001
6054 #define FOUND_MASK_BMODEL 0x00000002
6055 #define FOUND_MASK_VERS 0x00000004
6056 #define FOUND_MASK_MAC 0x00000008
6057 #define FOUND_MASK_NMAC 0x00000010
6058 #define FOUND_MASK_PHY 0x00000020
6059 #define FOUND_MASK_ALL 0x0000003f
6061 niudbg(PROBE, "VPD_SCAN: start[%x] end[%x]\n",
6063 while (start < end) {
6064 int len, err, instance, type, prop_len;
6069 if (found_mask == FOUND_MASK_ALL) {
6070 niu_vpd_parse_version(np);
6074 err = niu_pci_eeprom_read(np, start + 2);
6080 instance = niu_pci_eeprom_read(np, start);
6081 type = niu_pci_eeprom_read(np, start + 3);
6082 prop_len = niu_pci_eeprom_read(np, start + 4);
6083 err = niu_pci_vpd_get_propname(np, start + 5, namebuf, 64);
6089 if (!strcmp(namebuf, "model")) {
6090 prop_buf = np->vpd.model;
6091 max_len = NIU_VPD_MODEL_MAX;
6092 found_mask |= FOUND_MASK_MODEL;
6093 } else if (!strcmp(namebuf, "board-model")) {
6094 prop_buf = np->vpd.board_model;
6095 max_len = NIU_VPD_BD_MODEL_MAX;
6096 found_mask |= FOUND_MASK_BMODEL;
6097 } else if (!strcmp(namebuf, "version")) {
6098 prop_buf = np->vpd.version;
6099 max_len = NIU_VPD_VERSION_MAX;
6100 found_mask |= FOUND_MASK_VERS;
6101 } else if (!strcmp(namebuf, "local-mac-address")) {
6102 prop_buf = np->vpd.local_mac;
6104 found_mask |= FOUND_MASK_MAC;
6105 } else if (!strcmp(namebuf, "num-mac-addresses")) {
6106 prop_buf = &np->vpd.mac_num;
6108 found_mask |= FOUND_MASK_NMAC;
6109 } else if (!strcmp(namebuf, "phy-type")) {
6110 prop_buf = np->vpd.phy_type;
6111 max_len = NIU_VPD_PHY_TYPE_MAX;
6112 found_mask |= FOUND_MASK_PHY;
6115 if (max_len && prop_len > max_len) {
6116 dev_err(np->device, PFX "Property '%s' length (%d) is "
6117 "too long.\n", namebuf, prop_len);
6122 u32 off = start + 5 + err;
6125 niudbg(PROBE, "VPD_SCAN: Reading in property [%s] "
6126 "len[%d]\n", namebuf, prop_len);
6127 for (i = 0; i < prop_len; i++)
6128 *prop_buf++ = niu_pci_eeprom_read(np, off + i);
6137 /* ESPC_PIO_EN_ENABLE must be set */
6138 static void __devinit niu_pci_vpd_fetch(struct niu *np, u32 start)
6143 err = niu_pci_eeprom_read16_swp(np, start + 1);
6149 while (start + offset < ESPC_EEPROM_SIZE) {
6150 u32 here = start + offset;
6153 err = niu_pci_eeprom_read(np, here);
6157 err = niu_pci_eeprom_read16_swp(np, here + 1);
6161 here = start + offset + 3;
6162 end = start + offset + err;
6166 err = niu_pci_vpd_scan_props(np, here, end);
6167 if (err < 0 || err == 1)
6172 /* ESPC_PIO_EN_ENABLE must be set */
6173 static u32 __devinit niu_pci_vpd_offset(struct niu *np)
6175 u32 start = 0, end = ESPC_EEPROM_SIZE, ret;
6178 while (start < end) {
6181 /* ROM header signature? */
6182 err = niu_pci_eeprom_read16(np, start + 0);
6186 /* Apply offset to PCI data structure. */
6187 err = niu_pci_eeprom_read16(np, start + 23);
6192 /* Check for "PCIR" signature. */
6193 err = niu_pci_eeprom_read16(np, start + 0);
6196 err = niu_pci_eeprom_read16(np, start + 2);
6200 /* Check for OBP image type. */
6201 err = niu_pci_eeprom_read(np, start + 20);
6205 err = niu_pci_eeprom_read(np, ret + 2);
6209 start = ret + (err * 512);
6213 err = niu_pci_eeprom_read16_swp(np, start + 8);
6218 err = niu_pci_eeprom_read(np, ret + 0);
6228 static int __devinit niu_phy_type_prop_decode(struct niu *np,
6229 const char *phy_prop)
6231 if (!strcmp(phy_prop, "mif")) {
6232 /* 1G copper, MII */
6233 np->flags &= ~(NIU_FLAGS_FIBER |
6235 np->mac_xcvr = MAC_XCVR_MII;
6236 } else if (!strcmp(phy_prop, "xgf")) {
6237 /* 10G fiber, XPCS */
6238 np->flags |= (NIU_FLAGS_10G |
6240 np->mac_xcvr = MAC_XCVR_XPCS;
6241 } else if (!strcmp(phy_prop, "pcs")) {
6243 np->flags &= ~NIU_FLAGS_10G;
6244 np->flags |= NIU_FLAGS_FIBER;
6245 np->mac_xcvr = MAC_XCVR_PCS;
6246 } else if (!strcmp(phy_prop, "xgc")) {
6247 /* 10G copper, XPCS */
6248 np->flags |= NIU_FLAGS_10G;
6249 np->flags &= ~NIU_FLAGS_FIBER;
6250 np->mac_xcvr = MAC_XCVR_XPCS;
6257 static void __devinit niu_pci_vpd_validate(struct niu *np)
6259 struct net_device *dev = np->dev;
6260 struct niu_vpd *vpd = &np->vpd;
6263 if (!is_valid_ether_addr(&vpd->local_mac[0])) {
6264 dev_err(np->device, PFX "VPD MAC invalid, "
6265 "falling back to SPROM.\n");
6267 np->flags &= ~NIU_FLAGS_VPD_VALID;
6271 if (niu_phy_type_prop_decode(np, np->vpd.phy_type)) {
6272 dev_err(np->device, PFX "Illegal phy string [%s].\n",
6274 dev_err(np->device, PFX "Falling back to SPROM.\n");
6275 np->flags &= ~NIU_FLAGS_VPD_VALID;
6279 memcpy(dev->perm_addr, vpd->local_mac, ETH_ALEN);
6281 val8 = dev->perm_addr[5];
6282 dev->perm_addr[5] += np->port;
6283 if (dev->perm_addr[5] < val8)
6284 dev->perm_addr[4]++;
6286 memcpy(dev->dev_addr, dev->perm_addr, dev->addr_len);
6289 static int __devinit niu_pci_probe_sprom(struct niu *np)
6291 struct net_device *dev = np->dev;
6296 val = (nr64(ESPC_VER_IMGSZ) & ESPC_VER_IMGSZ_IMGSZ);
6297 val >>= ESPC_VER_IMGSZ_IMGSZ_SHIFT;
6300 np->eeprom_len = len;
6302 niudbg(PROBE, "SPROM: Image size %llu\n", (unsigned long long) val);
6305 for (i = 0; i < len; i++) {
6306 val = nr64(ESPC_NCR(i));
6307 sum += (val >> 0) & 0xff;
6308 sum += (val >> 8) & 0xff;
6309 sum += (val >> 16) & 0xff;
6310 sum += (val >> 24) & 0xff;
6312 niudbg(PROBE, "SPROM: Checksum %x\n", (int)(sum & 0xff));
6313 if ((sum & 0xff) != 0xab) {
6314 dev_err(np->device, PFX "Bad SPROM checksum "
6315 "(%x, should be 0xab)\n", (int) (sum & 0xff));
6319 val = nr64(ESPC_PHY_TYPE);
6322 val8 = (val & ESPC_PHY_TYPE_PORT0) >>
6323 ESPC_PHY_TYPE_PORT0_SHIFT;
6326 val8 = (val & ESPC_PHY_TYPE_PORT1) >>
6327 ESPC_PHY_TYPE_PORT1_SHIFT;
6330 val8 = (val & ESPC_PHY_TYPE_PORT2) >>
6331 ESPC_PHY_TYPE_PORT2_SHIFT;
6334 val8 = (val & ESPC_PHY_TYPE_PORT3) >>
6335 ESPC_PHY_TYPE_PORT3_SHIFT;
6338 dev_err(np->device, PFX "Bogus port number %u\n",
6342 niudbg(PROBE, "SPROM: PHY type %x\n", val8);
6345 case ESPC_PHY_TYPE_1G_COPPER:
6346 /* 1G copper, MII */
6347 np->flags &= ~(NIU_FLAGS_FIBER |
6349 np->mac_xcvr = MAC_XCVR_MII;
6352 case ESPC_PHY_TYPE_1G_FIBER:
6354 np->flags &= ~NIU_FLAGS_10G;
6355 np->flags |= NIU_FLAGS_FIBER;
6356 np->mac_xcvr = MAC_XCVR_PCS;
6359 case ESPC_PHY_TYPE_10G_COPPER:
6360 /* 10G copper, XPCS */
6361 np->flags |= NIU_FLAGS_10G;
6362 np->flags &= ~NIU_FLAGS_FIBER;
6363 np->mac_xcvr = MAC_XCVR_XPCS;
6366 case ESPC_PHY_TYPE_10G_FIBER:
6367 /* 10G fiber, XPCS */
6368 np->flags |= (NIU_FLAGS_10G |
6370 np->mac_xcvr = MAC_XCVR_XPCS;
6374 dev_err(np->device, PFX "Bogus SPROM phy type %u\n", val8);
6378 val = nr64(ESPC_MAC_ADDR0);
6379 niudbg(PROBE, "SPROM: MAC_ADDR0[%08llx]\n",
6380 (unsigned long long) val);
6381 dev->perm_addr[0] = (val >> 0) & 0xff;
6382 dev->perm_addr[1] = (val >> 8) & 0xff;
6383 dev->perm_addr[2] = (val >> 16) & 0xff;
6384 dev->perm_addr[3] = (val >> 24) & 0xff;
6386 val = nr64(ESPC_MAC_ADDR1);
6387 niudbg(PROBE, "SPROM: MAC_ADDR1[%08llx]\n",
6388 (unsigned long long) val);
6389 dev->perm_addr[4] = (val >> 0) & 0xff;
6390 dev->perm_addr[5] = (val >> 8) & 0xff;
6392 if (!is_valid_ether_addr(&dev->perm_addr[0])) {
6393 dev_err(np->device, PFX "SPROM MAC address invalid\n");
6394 dev_err(np->device, PFX "[ \n");
6395 for (i = 0; i < 6; i++)
6396 printk("%02x ", dev->perm_addr[i]);
6401 val8 = dev->perm_addr[5];
6402 dev->perm_addr[5] += np->port;
6403 if (dev->perm_addr[5] < val8)
6404 dev->perm_addr[4]++;
6406 memcpy(dev->dev_addr, dev->perm_addr, dev->addr_len);
6408 val = nr64(ESPC_MOD_STR_LEN);
6409 niudbg(PROBE, "SPROM: MOD_STR_LEN[%llu]\n",
6410 (unsigned long long) val);
6414 for (i = 0; i < val; i += 4) {
6415 u64 tmp = nr64(ESPC_NCR(5 + (i / 4)));
6417 np->vpd.model[i + 3] = (tmp >> 0) & 0xff;
6418 np->vpd.model[i + 2] = (tmp >> 8) & 0xff;
6419 np->vpd.model[i + 1] = (tmp >> 16) & 0xff;
6420 np->vpd.model[i + 0] = (tmp >> 24) & 0xff;
6422 np->vpd.model[val] = '\0';
6424 val = nr64(ESPC_BD_MOD_STR_LEN);
6425 niudbg(PROBE, "SPROM: BD_MOD_STR_LEN[%llu]\n",
6426 (unsigned long long) val);
6430 for (i = 0; i < val; i += 4) {
6431 u64 tmp = nr64(ESPC_NCR(14 + (i / 4)));
6433 np->vpd.board_model[i + 3] = (tmp >> 0) & 0xff;
6434 np->vpd.board_model[i + 2] = (tmp >> 8) & 0xff;
6435 np->vpd.board_model[i + 1] = (tmp >> 16) & 0xff;
6436 np->vpd.board_model[i + 0] = (tmp >> 24) & 0xff;
6438 np->vpd.board_model[val] = '\0';
6441 nr64(ESPC_NUM_PORTS_MACS) & ESPC_NUM_PORTS_MACS_VAL;
6442 niudbg(PROBE, "SPROM: NUM_PORTS_MACS[%d]\n",
6448 static int __devinit niu_get_and_validate_port(struct niu *np)
6450 struct niu_parent *parent = np->parent;
6453 np->flags |= NIU_FLAGS_XMAC;
6455 if (!parent->num_ports) {
6456 if (parent->plat_type == PLAT_TYPE_NIU) {
6457 parent->num_ports = 2;
6459 parent->num_ports = nr64(ESPC_NUM_PORTS_MACS) &
6460 ESPC_NUM_PORTS_MACS_VAL;
6462 if (!parent->num_ports)
6463 parent->num_ports = 4;
6467 niudbg(PROBE, "niu_get_and_validate_port: port[%d] num_ports[%d]\n",
6468 np->port, parent->num_ports);
6469 if (np->port >= parent->num_ports)
6475 static int __devinit phy_record(struct niu_parent *parent,
6476 struct phy_probe_info *p,
6477 int dev_id_1, int dev_id_2, u8 phy_port,
6480 u32 id = (dev_id_1 << 16) | dev_id_2;
6483 if (dev_id_1 < 0 || dev_id_2 < 0)
6485 if (type == PHY_TYPE_PMA_PMD || type == PHY_TYPE_PCS) {
6486 if (((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM8704) &&
6487 ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_MRVL88X2011))
6490 if ((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM5464R)
6494 pr_info("niu%d: Found PHY %08x type %s at phy_port %u\n",
6496 (type == PHY_TYPE_PMA_PMD ?
6498 (type == PHY_TYPE_PCS ?
6502 if (p->cur[type] >= NIU_MAX_PORTS) {
6503 printk(KERN_ERR PFX "Too many PHY ports.\n");
6507 p->phy_id[type][idx] = id;
6508 p->phy_port[type][idx] = phy_port;
6509 p->cur[type] = idx + 1;
6513 static int __devinit port_has_10g(struct phy_probe_info *p, int port)
6517 for (i = 0; i < p->cur[PHY_TYPE_PMA_PMD]; i++) {
6518 if (p->phy_port[PHY_TYPE_PMA_PMD][i] == port)
6521 for (i = 0; i < p->cur[PHY_TYPE_PCS]; i++) {
6522 if (p->phy_port[PHY_TYPE_PCS][i] == port)
6529 static int __devinit count_10g_ports(struct phy_probe_info *p, int *lowest)
6535 for (port = 8; port < 32; port++) {
6536 if (port_has_10g(p, port)) {
6546 static int __devinit count_1g_ports(struct phy_probe_info *p, int *lowest)
6549 if (p->cur[PHY_TYPE_MII])
6550 *lowest = p->phy_port[PHY_TYPE_MII][0];
6552 return p->cur[PHY_TYPE_MII];
6555 static void __devinit niu_n2_divide_channels(struct niu_parent *parent)
6557 int num_ports = parent->num_ports;
6560 for (i = 0; i < num_ports; i++) {
6561 parent->rxchan_per_port[i] = (16 / num_ports);
6562 parent->txchan_per_port[i] = (16 / num_ports);
6564 pr_info(PFX "niu%d: Port %u [%u RX chans] "
6567 parent->rxchan_per_port[i],
6568 parent->txchan_per_port[i]);
6572 static void __devinit niu_divide_channels(struct niu_parent *parent,
6573 int num_10g, int num_1g)
6575 int num_ports = parent->num_ports;
6576 int rx_chans_per_10g, rx_chans_per_1g;
6577 int tx_chans_per_10g, tx_chans_per_1g;
6578 int i, tot_rx, tot_tx;
6580 if (!num_10g || !num_1g) {
6581 rx_chans_per_10g = rx_chans_per_1g =
6582 (NIU_NUM_RXCHAN / num_ports);
6583 tx_chans_per_10g = tx_chans_per_1g =
6584 (NIU_NUM_TXCHAN / num_ports);
6586 rx_chans_per_1g = NIU_NUM_RXCHAN / 8;
6587 rx_chans_per_10g = (NIU_NUM_RXCHAN -
6588 (rx_chans_per_1g * num_1g)) /
6591 tx_chans_per_1g = NIU_NUM_TXCHAN / 6;
6592 tx_chans_per_10g = (NIU_NUM_TXCHAN -
6593 (tx_chans_per_1g * num_1g)) /
6597 tot_rx = tot_tx = 0;
6598 for (i = 0; i < num_ports; i++) {
6599 int type = phy_decode(parent->port_phy, i);
6601 if (type == PORT_TYPE_10G) {
6602 parent->rxchan_per_port[i] = rx_chans_per_10g;
6603 parent->txchan_per_port[i] = tx_chans_per_10g;
6605 parent->rxchan_per_port[i] = rx_chans_per_1g;
6606 parent->txchan_per_port[i] = tx_chans_per_1g;
6608 pr_info(PFX "niu%d: Port %u [%u RX chans] "
6611 parent->rxchan_per_port[i],
6612 parent->txchan_per_port[i]);
6613 tot_rx += parent->rxchan_per_port[i];
6614 tot_tx += parent->txchan_per_port[i];
6617 if (tot_rx > NIU_NUM_RXCHAN) {
6618 printk(KERN_ERR PFX "niu%d: Too many RX channels (%d), "
6619 "resetting to one per port.\n",
6620 parent->index, tot_rx);
6621 for (i = 0; i < num_ports; i++)
6622 parent->rxchan_per_port[i] = 1;
6624 if (tot_tx > NIU_NUM_TXCHAN) {
6625 printk(KERN_ERR PFX "niu%d: Too many TX channels (%d), "
6626 "resetting to one per port.\n",
6627 parent->index, tot_tx);
6628 for (i = 0; i < num_ports; i++)
6629 parent->txchan_per_port[i] = 1;
6631 if (tot_rx < NIU_NUM_RXCHAN || tot_tx < NIU_NUM_TXCHAN) {
6632 printk(KERN_WARNING PFX "niu%d: Driver bug, wasted channels, "
6634 parent->index, tot_rx, tot_tx);
6638 static void __devinit niu_divide_rdc_groups(struct niu_parent *parent,
6639 int num_10g, int num_1g)
6641 int i, num_ports = parent->num_ports;
6642 int rdc_group, rdc_groups_per_port;
6643 int rdc_channel_base;
6646 rdc_groups_per_port = NIU_NUM_RDC_TABLES / num_ports;
6648 rdc_channel_base = 0;
6650 for (i = 0; i < num_ports; i++) {
6651 struct niu_rdc_tables *tp = &parent->rdc_group_cfg[i];
6652 int grp, num_channels = parent->rxchan_per_port[i];
6653 int this_channel_offset;
6655 tp->first_table_num = rdc_group;
6656 tp->num_tables = rdc_groups_per_port;
6657 this_channel_offset = 0;
6658 for (grp = 0; grp < tp->num_tables; grp++) {
6659 struct rdc_table *rt = &tp->tables[grp];
6662 pr_info(PFX "niu%d: Port %d RDC tbl(%d) [ ",
6663 parent->index, i, tp->first_table_num + grp);
6664 for (slot = 0; slot < NIU_RDC_TABLE_SLOTS; slot++) {
6665 rt->rxdma_channel[slot] =
6666 rdc_channel_base + this_channel_offset;
6668 printk("%d ", rt->rxdma_channel[slot]);
6670 if (++this_channel_offset == num_channels)
6671 this_channel_offset = 0;
6676 parent->rdc_default[i] = rdc_channel_base;
6678 rdc_channel_base += num_channels;
6679 rdc_group += rdc_groups_per_port;
6683 static int __devinit fill_phy_probe_info(struct niu *np,
6684 struct niu_parent *parent,
6685 struct phy_probe_info *info)
6687 unsigned long flags;
6690 memset(info, 0, sizeof(*info));
6692 /* Port 0 to 7 are reserved for onboard Serdes, probe the rest. */
6693 niu_lock_parent(np, flags);
6695 for (port = 8; port < 32; port++) {
6696 int dev_id_1, dev_id_2;
6698 dev_id_1 = mdio_read(np, port,
6699 NIU_PMA_PMD_DEV_ADDR, MII_PHYSID1);
6700 dev_id_2 = mdio_read(np, port,
6701 NIU_PMA_PMD_DEV_ADDR, MII_PHYSID2);
6702 err = phy_record(parent, info, dev_id_1, dev_id_2, port,
6706 dev_id_1 = mdio_read(np, port,
6707 NIU_PCS_DEV_ADDR, MII_PHYSID1);
6708 dev_id_2 = mdio_read(np, port,
6709 NIU_PCS_DEV_ADDR, MII_PHYSID2);
6710 err = phy_record(parent, info, dev_id_1, dev_id_2, port,
6714 dev_id_1 = mii_read(np, port, MII_PHYSID1);
6715 dev_id_2 = mii_read(np, port, MII_PHYSID2);
6716 err = phy_record(parent, info, dev_id_1, dev_id_2, port,
6721 niu_unlock_parent(np, flags);
6726 static int __devinit walk_phys(struct niu *np, struct niu_parent *parent)
6728 struct phy_probe_info *info = &parent->phy_probe_info;
6729 int lowest_10g, lowest_1g;
6730 int num_10g, num_1g;
6734 err = fill_phy_probe_info(np, parent, info);
6738 num_10g = count_10g_ports(info, &lowest_10g);
6739 num_1g = count_1g_ports(info, &lowest_1g);
6741 switch ((num_10g << 4) | num_1g) {
6743 if (lowest_1g == 10)
6744 parent->plat_type = PLAT_TYPE_VF_P0;
6745 else if (lowest_1g == 26)
6746 parent->plat_type = PLAT_TYPE_VF_P1;
6748 goto unknown_vg_1g_port;
6752 val = (phy_encode(PORT_TYPE_10G, 0) |
6753 phy_encode(PORT_TYPE_10G, 1) |
6754 phy_encode(PORT_TYPE_1G, 2) |
6755 phy_encode(PORT_TYPE_1G, 3));
6759 val = (phy_encode(PORT_TYPE_10G, 0) |
6760 phy_encode(PORT_TYPE_10G, 1));
6764 val = phy_encode(PORT_TYPE_10G, np->port);
6768 if (lowest_1g == 10)
6769 parent->plat_type = PLAT_TYPE_VF_P0;
6770 else if (lowest_1g == 26)
6771 parent->plat_type = PLAT_TYPE_VF_P1;
6773 goto unknown_vg_1g_port;
6777 if ((lowest_10g & 0x7) == 0)
6778 val = (phy_encode(PORT_TYPE_10G, 0) |
6779 phy_encode(PORT_TYPE_1G, 1) |
6780 phy_encode(PORT_TYPE_1G, 2) |
6781 phy_encode(PORT_TYPE_1G, 3));
6783 val = (phy_encode(PORT_TYPE_1G, 0) |
6784 phy_encode(PORT_TYPE_10G, 1) |
6785 phy_encode(PORT_TYPE_1G, 2) |
6786 phy_encode(PORT_TYPE_1G, 3));
6790 if (lowest_1g == 10)
6791 parent->plat_type = PLAT_TYPE_VF_P0;
6792 else if (lowest_1g == 26)
6793 parent->plat_type = PLAT_TYPE_VF_P1;
6795 goto unknown_vg_1g_port;
6797 val = (phy_encode(PORT_TYPE_1G, 0) |
6798 phy_encode(PORT_TYPE_1G, 1) |
6799 phy_encode(PORT_TYPE_1G, 2) |
6800 phy_encode(PORT_TYPE_1G, 3));
6804 printk(KERN_ERR PFX "Unsupported port config "
6810 parent->port_phy = val;
6812 if (parent->plat_type == PLAT_TYPE_NIU)
6813 niu_n2_divide_channels(parent);
6815 niu_divide_channels(parent, num_10g, num_1g);
6817 niu_divide_rdc_groups(parent, num_10g, num_1g);
6822 printk(KERN_ERR PFX "Cannot identify platform type, 1gport=%d\n",
6827 static int __devinit niu_probe_ports(struct niu *np)
6829 struct niu_parent *parent = np->parent;
6832 niudbg(PROBE, "niu_probe_ports(): port_phy[%08x]\n",
6835 if (parent->port_phy == PORT_PHY_UNKNOWN) {
6836 err = walk_phys(np, parent);
6840 niu_set_ldg_timer_res(np, 2);
6841 for (i = 0; i <= LDN_MAX; i++)
6842 niu_ldn_irq_enable(np, i, 0);
6845 if (parent->port_phy == PORT_PHY_INVALID)
6851 static int __devinit niu_classifier_swstate_init(struct niu *np)
6853 struct niu_classifier *cp = &np->clas;
6855 niudbg(PROBE, "niu_classifier_swstate_init: num_tcam(%d)\n",
6856 np->parent->tcam_num_entries);
6858 cp->tcam_index = (u16) np->port;
6859 cp->h1_init = 0xffffffff;
6860 cp->h2_init = 0xffff;
6862 return fflp_early_init(np);
6865 static void __devinit niu_link_config_init(struct niu *np)
6867 struct niu_link_config *lp = &np->link_config;
6869 lp->advertising = (ADVERTISED_10baseT_Half |
6870 ADVERTISED_10baseT_Full |
6871 ADVERTISED_100baseT_Half |
6872 ADVERTISED_100baseT_Full |
6873 ADVERTISED_1000baseT_Half |
6874 ADVERTISED_1000baseT_Full |
6875 ADVERTISED_10000baseT_Full |
6876 ADVERTISED_Autoneg);
6877 lp->speed = lp->active_speed = SPEED_INVALID;
6878 lp->duplex = lp->active_duplex = DUPLEX_INVALID;
6880 lp->loopback_mode = LOOPBACK_MAC;
6881 lp->active_speed = SPEED_10000;
6882 lp->active_duplex = DUPLEX_FULL;
6884 lp->loopback_mode = LOOPBACK_DISABLED;
6888 static int __devinit niu_init_mac_ipp_pcs_base(struct niu *np)
6892 np->mac_regs = np->regs + XMAC_PORT0_OFF;
6893 np->ipp_off = 0x00000;
6894 np->pcs_off = 0x04000;
6895 np->xpcs_off = 0x02000;
6899 np->mac_regs = np->regs + XMAC_PORT1_OFF;
6900 np->ipp_off = 0x08000;
6901 np->pcs_off = 0x0a000;
6902 np->xpcs_off = 0x08000;
6906 np->mac_regs = np->regs + BMAC_PORT2_OFF;
6907 np->ipp_off = 0x04000;
6908 np->pcs_off = 0x0e000;
6909 np->xpcs_off = ~0UL;
6913 np->mac_regs = np->regs + BMAC_PORT3_OFF;
6914 np->ipp_off = 0x0c000;
6915 np->pcs_off = 0x12000;
6916 np->xpcs_off = ~0UL;
6920 dev_err(np->device, PFX "Port %u is invalid, cannot "
6921 "compute MAC block offset.\n", np->port);
6928 static void __devinit niu_try_msix(struct niu *np, u8 *ldg_num_map)
6930 struct msix_entry msi_vec[NIU_NUM_LDG];
6931 struct niu_parent *parent = np->parent;
6932 struct pci_dev *pdev = np->pdev;
6933 int i, num_irqs, err;
6936 first_ldg = (NIU_NUM_LDG / parent->num_ports) * np->port;
6937 for (i = 0; i < (NIU_NUM_LDG / parent->num_ports); i++)
6938 ldg_num_map[i] = first_ldg + i;
6940 num_irqs = (parent->rxchan_per_port[np->port] +
6941 parent->txchan_per_port[np->port] +
6942 (np->port == 0 ? 3 : 1));
6943 BUG_ON(num_irqs > (NIU_NUM_LDG / parent->num_ports));
6946 for (i = 0; i < num_irqs; i++) {
6947 msi_vec[i].vector = 0;
6948 msi_vec[i].entry = i;
6951 err = pci_enable_msix(pdev, msi_vec, num_irqs);
6953 np->flags &= ~NIU_FLAGS_MSIX;
6961 np->flags |= NIU_FLAGS_MSIX;
6962 for (i = 0; i < num_irqs; i++)
6963 np->ldg[i].irq = msi_vec[i].vector;
6964 np->num_ldg = num_irqs;
6967 static int __devinit niu_n2_irq_init(struct niu *np, u8 *ldg_num_map)
6969 #ifdef CONFIG_SPARC64
6970 struct of_device *op = np->op;
6971 const u32 *int_prop;
6974 int_prop = of_get_property(op->node, "interrupts", NULL);
6978 for (i = 0; i < op->num_irqs; i++) {
6979 ldg_num_map[i] = int_prop[i];
6980 np->ldg[i].irq = op->irqs[i];
6983 np->num_ldg = op->num_irqs;
6991 static int __devinit niu_ldg_init(struct niu *np)
6993 struct niu_parent *parent = np->parent;
6994 u8 ldg_num_map[NIU_NUM_LDG];
6995 int first_chan, num_chan;
6996 int i, err, ldg_rotor;
7000 np->ldg[0].irq = np->dev->irq;
7001 if (parent->plat_type == PLAT_TYPE_NIU) {
7002 err = niu_n2_irq_init(np, ldg_num_map);
7006 niu_try_msix(np, ldg_num_map);
7009 for (i = 0; i < np->num_ldg; i++) {
7010 struct niu_ldg *lp = &np->ldg[i];
7012 netif_napi_add(np->dev, &lp->napi, niu_poll, 64);
7015 lp->ldg_num = ldg_num_map[i];
7016 lp->timer = 2; /* XXX */
7018 /* On N2 NIU the firmware has setup the SID mappings so they go
7019 * to the correct values that will route the LDG to the proper
7020 * interrupt in the NCU interrupt table.
7022 if (np->parent->plat_type != PLAT_TYPE_NIU) {
7023 err = niu_set_ldg_sid(np, lp->ldg_num, port, i);
7029 /* We adopt the LDG assignment ordering used by the N2 NIU
7030 * 'interrupt' properties because that simplifies a lot of
7031 * things. This ordering is:
7034 * MIF (if port zero)
7035 * SYSERR (if port zero)
7042 err = niu_ldg_assign_ldn(np, parent, ldg_num_map[ldg_rotor],
7048 if (ldg_rotor == np->num_ldg)
7052 err = niu_ldg_assign_ldn(np, parent,
7053 ldg_num_map[ldg_rotor],
7059 if (ldg_rotor == np->num_ldg)
7062 err = niu_ldg_assign_ldn(np, parent,
7063 ldg_num_map[ldg_rotor],
7069 if (ldg_rotor == np->num_ldg)
7075 for (i = 0; i < port; i++)
7076 first_chan += parent->rxchan_per_port[port];
7077 num_chan = parent->rxchan_per_port[port];
7079 for (i = first_chan; i < (first_chan + num_chan); i++) {
7080 err = niu_ldg_assign_ldn(np, parent,
7081 ldg_num_map[ldg_rotor],
7086 if (ldg_rotor == np->num_ldg)
7091 for (i = 0; i < port; i++)
7092 first_chan += parent->txchan_per_port[port];
7093 num_chan = parent->txchan_per_port[port];
7094 for (i = first_chan; i < (first_chan + num_chan); i++) {
7095 err = niu_ldg_assign_ldn(np, parent,
7096 ldg_num_map[ldg_rotor],
7101 if (ldg_rotor == np->num_ldg)
7108 static void __devexit niu_ldg_free(struct niu *np)
7110 if (np->flags & NIU_FLAGS_MSIX)
7111 pci_disable_msix(np->pdev);
7114 static int __devinit niu_get_of_props(struct niu *np)
7116 #ifdef CONFIG_SPARC64
7117 struct net_device *dev = np->dev;
7118 struct device_node *dp;
7119 const char *phy_type;
7123 if (np->parent->plat_type == PLAT_TYPE_NIU)
7126 dp = pci_device_to_OF_node(np->pdev);
7128 phy_type = of_get_property(dp, "phy-type", &prop_len);
7130 dev_err(np->device, PFX "%s: OF node lacks "
7131 "phy-type property\n",
7136 if (!strcmp(phy_type, "none"))
7139 strcpy(np->vpd.phy_type, phy_type);
7141 if (niu_phy_type_prop_decode(np, np->vpd.phy_type)) {
7142 dev_err(np->device, PFX "%s: Illegal phy string [%s].\n",
7143 dp->full_name, np->vpd.phy_type);
7147 mac_addr = of_get_property(dp, "local-mac-address", &prop_len);
7149 dev_err(np->device, PFX "%s: OF node lacks "
7150 "local-mac-address property\n",
7154 if (prop_len != dev->addr_len) {
7155 dev_err(np->device, PFX "%s: OF MAC address prop len (%d) "
7157 dp->full_name, prop_len);
7159 memcpy(dev->perm_addr, mac_addr, dev->addr_len);
7160 if (!is_valid_ether_addr(&dev->perm_addr[0])) {
7163 dev_err(np->device, PFX "%s: OF MAC address is invalid\n",
7165 dev_err(np->device, PFX "%s: [ \n",
7167 for (i = 0; i < 6; i++)
7168 printk("%02x ", dev->perm_addr[i]);
7173 memcpy(dev->dev_addr, dev->perm_addr, dev->addr_len);
7181 static int __devinit niu_get_invariants(struct niu *np)
7183 int err, have_props;
7186 err = niu_get_of_props(np);
7192 err = niu_get_and_validate_port(np);
7196 err = niu_init_mac_ipp_pcs_base(np);
7201 if (np->parent->plat_type == PLAT_TYPE_NIU)
7204 nw64(ESPC_PIO_EN, ESPC_PIO_EN_ENABLE);
7205 offset = niu_pci_vpd_offset(np);
7206 niudbg(PROBE, "niu_get_invariants: VPD offset [%08x]\n",
7209 niu_pci_vpd_fetch(np, offset);
7210 nw64(ESPC_PIO_EN, 0);
7212 if (np->flags & NIU_FLAGS_VPD_VALID)
7213 niu_pci_vpd_validate(np);
7215 if (!(np->flags & NIU_FLAGS_VPD_VALID)) {
7216 err = niu_pci_probe_sprom(np);
7222 err = niu_probe_ports(np);
7228 niu_classifier_swstate_init(np);
7229 niu_link_config_init(np);
7231 err = niu_determine_phy_disposition(np);
7233 err = niu_init_link(np);
7238 static LIST_HEAD(niu_parent_list);
7239 static DEFINE_MUTEX(niu_parent_lock);
7240 static int niu_parent_index;
7242 static ssize_t show_port_phy(struct device *dev,
7243 struct device_attribute *attr, char *buf)
7245 struct platform_device *plat_dev = to_platform_device(dev);
7246 struct niu_parent *p = plat_dev->dev.platform_data;
7247 u32 port_phy = p->port_phy;
7248 char *orig_buf = buf;
7251 if (port_phy == PORT_PHY_UNKNOWN ||
7252 port_phy == PORT_PHY_INVALID)
7255 for (i = 0; i < p->num_ports; i++) {
7256 const char *type_str;
7259 type = phy_decode(port_phy, i);
7260 if (type == PORT_TYPE_10G)
7265 (i == 0) ? "%s" : " %s",
7268 buf += sprintf(buf, "\n");
7269 return buf - orig_buf;
7272 static ssize_t show_plat_type(struct device *dev,
7273 struct device_attribute *attr, char *buf)
7275 struct platform_device *plat_dev = to_platform_device(dev);
7276 struct niu_parent *p = plat_dev->dev.platform_data;
7277 const char *type_str;
7279 switch (p->plat_type) {
7280 case PLAT_TYPE_ATLAS:
7286 case PLAT_TYPE_VF_P0:
7289 case PLAT_TYPE_VF_P1:
7293 type_str = "unknown";
7297 return sprintf(buf, "%s\n", type_str);
7300 static ssize_t __show_chan_per_port(struct device *dev,
7301 struct device_attribute *attr, char *buf,
7304 struct platform_device *plat_dev = to_platform_device(dev);
7305 struct niu_parent *p = plat_dev->dev.platform_data;
7306 char *orig_buf = buf;
7310 arr = (rx ? p->rxchan_per_port : p->txchan_per_port);
7312 for (i = 0; i < p->num_ports; i++) {
7314 (i == 0) ? "%d" : " %d",
7317 buf += sprintf(buf, "\n");
7319 return buf - orig_buf;
7322 static ssize_t show_rxchan_per_port(struct device *dev,
7323 struct device_attribute *attr, char *buf)
7325 return __show_chan_per_port(dev, attr, buf, 1);
7328 static ssize_t show_txchan_per_port(struct device *dev,
7329 struct device_attribute *attr, char *buf)
7331 return __show_chan_per_port(dev, attr, buf, 1);
7334 static ssize_t show_num_ports(struct device *dev,
7335 struct device_attribute *attr, char *buf)
7337 struct platform_device *plat_dev = to_platform_device(dev);
7338 struct niu_parent *p = plat_dev->dev.platform_data;
7340 return sprintf(buf, "%d\n", p->num_ports);
7343 static struct device_attribute niu_parent_attributes[] = {
7344 __ATTR(port_phy, S_IRUGO, show_port_phy, NULL),
7345 __ATTR(plat_type, S_IRUGO, show_plat_type, NULL),
7346 __ATTR(rxchan_per_port, S_IRUGO, show_rxchan_per_port, NULL),
7347 __ATTR(txchan_per_port, S_IRUGO, show_txchan_per_port, NULL),
7348 __ATTR(num_ports, S_IRUGO, show_num_ports, NULL),
7352 static struct niu_parent * __devinit niu_new_parent(struct niu *np,
7353 union niu_parent_id *id,
7356 struct platform_device *plat_dev;
7357 struct niu_parent *p;
7360 niudbg(PROBE, "niu_new_parent: Creating new parent.\n");
7362 plat_dev = platform_device_register_simple("niu", niu_parent_index,
7367 for (i = 0; attr_name(niu_parent_attributes[i]); i++) {
7368 int err = device_create_file(&plat_dev->dev,
7369 &niu_parent_attributes[i]);
7371 goto fail_unregister;
7374 p = kzalloc(sizeof(*p), GFP_KERNEL);
7376 goto fail_unregister;
7378 p->index = niu_parent_index++;
7380 plat_dev->dev.platform_data = p;
7381 p->plat_dev = plat_dev;
7383 memcpy(&p->id, id, sizeof(*id));
7384 p->plat_type = ptype;
7385 INIT_LIST_HEAD(&p->list);
7386 atomic_set(&p->refcnt, 0);
7387 list_add(&p->list, &niu_parent_list);
7388 spin_lock_init(&p->lock);
7390 p->rxdma_clock_divider = 7500;
7392 p->tcam_num_entries = NIU_PCI_TCAM_ENTRIES;
7393 if (p->plat_type == PLAT_TYPE_NIU)
7394 p->tcam_num_entries = NIU_NONPCI_TCAM_ENTRIES;
7396 for (i = CLASS_CODE_USER_PROG1; i <= CLASS_CODE_SCTP_IPV6; i++) {
7397 int index = i - CLASS_CODE_USER_PROG1;
7399 p->tcam_key[index] = TCAM_KEY_TSEL;
7400 p->flow_key[index] = (FLOW_KEY_IPSA |
7403 (FLOW_KEY_L4_BYTE12 <<
7404 FLOW_KEY_L4_0_SHIFT) |
7405 (FLOW_KEY_L4_BYTE12 <<
7406 FLOW_KEY_L4_1_SHIFT));
7409 for (i = 0; i < LDN_MAX + 1; i++)
7410 p->ldg_map[i] = LDG_INVALID;
7415 platform_device_unregister(plat_dev);
7419 static struct niu_parent * __devinit niu_get_parent(struct niu *np,
7420 union niu_parent_id *id,
7423 struct niu_parent *p, *tmp;
7424 int port = np->port;
7426 niudbg(PROBE, "niu_get_parent: platform_type[%u] port[%u]\n",
7429 mutex_lock(&niu_parent_lock);
7431 list_for_each_entry(tmp, &niu_parent_list, list) {
7432 if (!memcmp(id, &tmp->id, sizeof(*id))) {
7438 p = niu_new_parent(np, id, ptype);
7444 sprintf(port_name, "port%d", port);
7445 err = sysfs_create_link(&p->plat_dev->dev.kobj,
7449 p->ports[port] = np;
7450 atomic_inc(&p->refcnt);
7453 mutex_unlock(&niu_parent_lock);
7458 static void niu_put_parent(struct niu *np)
7460 struct niu_parent *p = np->parent;
7464 BUG_ON(!p || p->ports[port] != np);
7466 niudbg(PROBE, "niu_put_parent: port[%u]\n", port);
7468 sprintf(port_name, "port%d", port);
7470 mutex_lock(&niu_parent_lock);
7472 sysfs_remove_link(&p->plat_dev->dev.kobj, port_name);
7474 p->ports[port] = NULL;
7477 if (atomic_dec_and_test(&p->refcnt)) {
7479 platform_device_unregister(p->plat_dev);
7482 mutex_unlock(&niu_parent_lock);
7485 static void *niu_pci_alloc_coherent(struct device *dev, size_t size,
7486 u64 *handle, gfp_t flag)
7491 ret = dma_alloc_coherent(dev, size, &dh, flag);
7497 static void niu_pci_free_coherent(struct device *dev, size_t size,
7498 void *cpu_addr, u64 handle)
7500 dma_free_coherent(dev, size, cpu_addr, handle);
7503 static u64 niu_pci_map_page(struct device *dev, struct page *page,
7504 unsigned long offset, size_t size,
7505 enum dma_data_direction direction)
7507 return dma_map_page(dev, page, offset, size, direction);
7510 static void niu_pci_unmap_page(struct device *dev, u64 dma_address,
7511 size_t size, enum dma_data_direction direction)
7513 return dma_unmap_page(dev, dma_address, size, direction);
7516 static u64 niu_pci_map_single(struct device *dev, void *cpu_addr,
7518 enum dma_data_direction direction)
7520 return dma_map_single(dev, cpu_addr, size, direction);
7523 static void niu_pci_unmap_single(struct device *dev, u64 dma_address,
7525 enum dma_data_direction direction)
7527 dma_unmap_single(dev, dma_address, size, direction);
7530 static const struct niu_ops niu_pci_ops = {
7531 .alloc_coherent = niu_pci_alloc_coherent,
7532 .free_coherent = niu_pci_free_coherent,
7533 .map_page = niu_pci_map_page,
7534 .unmap_page = niu_pci_unmap_page,
7535 .map_single = niu_pci_map_single,
7536 .unmap_single = niu_pci_unmap_single,
7539 static void __devinit niu_driver_version(void)
7541 static int niu_version_printed;
7543 if (niu_version_printed++ == 0)
7544 pr_info("%s", version);
7547 static struct net_device * __devinit niu_alloc_and_init(
7548 struct device *gen_dev, struct pci_dev *pdev,
7549 struct of_device *op, const struct niu_ops *ops,
7552 struct net_device *dev = alloc_etherdev(sizeof(struct niu));
7556 dev_err(gen_dev, PFX "Etherdev alloc failed, aborting.\n");
7560 SET_NETDEV_DEV(dev, gen_dev);
7562 np = netdev_priv(dev);
7566 np->device = gen_dev;
7569 np->msg_enable = niu_debug;
7571 spin_lock_init(&np->lock);
7572 INIT_WORK(&np->reset_task, niu_reset_task);
7579 static void __devinit niu_assign_netdev_ops(struct net_device *dev)
7581 dev->open = niu_open;
7582 dev->stop = niu_close;
7583 dev->get_stats = niu_get_stats;
7584 dev->set_multicast_list = niu_set_rx_mode;
7585 dev->set_mac_address = niu_set_mac_addr;
7586 dev->do_ioctl = niu_ioctl;
7587 dev->tx_timeout = niu_tx_timeout;
7588 dev->hard_start_xmit = niu_start_xmit;
7589 dev->ethtool_ops = &niu_ethtool_ops;
7590 dev->watchdog_timeo = NIU_TX_TIMEOUT;
7591 dev->change_mtu = niu_change_mtu;
7594 static void __devinit niu_device_announce(struct niu *np)
7596 struct net_device *dev = np->dev;
7597 DECLARE_MAC_BUF(mac);
7599 pr_info("%s: NIU Ethernet %s\n",
7600 dev->name, print_mac(mac, dev->dev_addr));
7602 pr_info("%s: Port type[%s] mode[%s:%s] XCVR[%s] phy[%s]\n",
7604 (np->flags & NIU_FLAGS_XMAC ? "XMAC" : "BMAC"),
7605 (np->flags & NIU_FLAGS_10G ? "10G" : "1G"),
7606 (np->flags & NIU_FLAGS_FIBER ? "FIBER" : "COPPER"),
7607 (np->mac_xcvr == MAC_XCVR_MII ? "MII" :
7608 (np->mac_xcvr == MAC_XCVR_PCS ? "PCS" : "XPCS")),
7612 static int __devinit niu_pci_init_one(struct pci_dev *pdev,
7613 const struct pci_device_id *ent)
7615 unsigned long niureg_base, niureg_len;
7616 union niu_parent_id parent_id;
7617 struct net_device *dev;
7623 niu_driver_version();
7625 err = pci_enable_device(pdev);
7627 dev_err(&pdev->dev, PFX "Cannot enable PCI device, "
7632 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
7633 !(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
7634 dev_err(&pdev->dev, PFX "Cannot find proper PCI device "
7635 "base addresses, aborting.\n");
7637 goto err_out_disable_pdev;
7640 err = pci_request_regions(pdev, DRV_MODULE_NAME);
7642 dev_err(&pdev->dev, PFX "Cannot obtain PCI resources, "
7644 goto err_out_disable_pdev;
7647 pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
7649 dev_err(&pdev->dev, PFX "Cannot find PCI Express capability, "
7651 goto err_out_free_res;
7654 dev = niu_alloc_and_init(&pdev->dev, pdev, NULL,
7655 &niu_pci_ops, PCI_FUNC(pdev->devfn));
7658 goto err_out_free_res;
7660 np = netdev_priv(dev);
7662 memset(&parent_id, 0, sizeof(parent_id));
7663 parent_id.pci.domain = pci_domain_nr(pdev->bus);
7664 parent_id.pci.bus = pdev->bus->number;
7665 parent_id.pci.device = PCI_SLOT(pdev->devfn);
7667 np->parent = niu_get_parent(np, &parent_id,
7671 goto err_out_free_dev;
7674 pci_read_config_word(pdev, pos + PCI_EXP_DEVCTL, &val16);
7675 val16 &= ~PCI_EXP_DEVCTL_NOSNOOP_EN;
7676 val16 |= (PCI_EXP_DEVCTL_CERE |
7677 PCI_EXP_DEVCTL_NFERE |
7678 PCI_EXP_DEVCTL_FERE |
7679 PCI_EXP_DEVCTL_URRE |
7680 PCI_EXP_DEVCTL_RELAX_EN);
7681 pci_write_config_word(pdev, pos + PCI_EXP_DEVCTL, val16);
7683 dma_mask = DMA_44BIT_MASK;
7684 err = pci_set_dma_mask(pdev, dma_mask);
7686 dev->features |= NETIF_F_HIGHDMA;
7687 err = pci_set_consistent_dma_mask(pdev, dma_mask);
7689 dev_err(&pdev->dev, PFX "Unable to obtain 44 bit "
7690 "DMA for consistent allocations, "
7692 goto err_out_release_parent;
7695 if (err || dma_mask == DMA_32BIT_MASK) {
7696 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
7698 dev_err(&pdev->dev, PFX "No usable DMA configuration, "
7700 goto err_out_release_parent;
7704 dev->features |= (NETIF_F_SG | NETIF_F_HW_CSUM);
7706 niureg_base = pci_resource_start(pdev, 0);
7707 niureg_len = pci_resource_len(pdev, 0);
7709 np->regs = ioremap_nocache(niureg_base, niureg_len);
7711 dev_err(&pdev->dev, PFX "Cannot map device registers, "
7714 goto err_out_release_parent;
7717 pci_set_master(pdev);
7718 pci_save_state(pdev);
7720 dev->irq = pdev->irq;
7722 niu_assign_netdev_ops(dev);
7724 err = niu_get_invariants(np);
7727 dev_err(&pdev->dev, PFX "Problem fetching invariants "
7728 "of chip, aborting.\n");
7729 goto err_out_iounmap;
7732 err = register_netdev(dev);
7734 dev_err(&pdev->dev, PFX "Cannot register net device, "
7736 goto err_out_iounmap;
7739 pci_set_drvdata(pdev, dev);
7741 niu_device_announce(np);
7751 err_out_release_parent:
7758 pci_release_regions(pdev);
7760 err_out_disable_pdev:
7761 pci_disable_device(pdev);
7762 pci_set_drvdata(pdev, NULL);
7767 static void __devexit niu_pci_remove_one(struct pci_dev *pdev)
7769 struct net_device *dev = pci_get_drvdata(pdev);
7772 struct niu *np = netdev_priv(dev);
7774 unregister_netdev(dev);
7785 pci_release_regions(pdev);
7786 pci_disable_device(pdev);
7787 pci_set_drvdata(pdev, NULL);
7791 static int niu_suspend(struct pci_dev *pdev, pm_message_t state)
7793 struct net_device *dev = pci_get_drvdata(pdev);
7794 struct niu *np = netdev_priv(dev);
7795 unsigned long flags;
7797 if (!netif_running(dev))
7800 flush_scheduled_work();
7803 del_timer_sync(&np->timer);
7805 spin_lock_irqsave(&np->lock, flags);
7806 niu_enable_interrupts(np, 0);
7807 spin_unlock_irqrestore(&np->lock, flags);
7809 netif_device_detach(dev);
7811 spin_lock_irqsave(&np->lock, flags);
7813 spin_unlock_irqrestore(&np->lock, flags);
7815 pci_save_state(pdev);
7820 static int niu_resume(struct pci_dev *pdev)
7822 struct net_device *dev = pci_get_drvdata(pdev);
7823 struct niu *np = netdev_priv(dev);
7824 unsigned long flags;
7827 if (!netif_running(dev))
7830 pci_restore_state(pdev);
7832 netif_device_attach(dev);
7834 spin_lock_irqsave(&np->lock, flags);
7836 err = niu_init_hw(np);
7838 np->timer.expires = jiffies + HZ;
7839 add_timer(&np->timer);
7840 niu_netif_start(np);
7843 spin_unlock_irqrestore(&np->lock, flags);
7848 static struct pci_driver niu_pci_driver = {
7849 .name = DRV_MODULE_NAME,
7850 .id_table = niu_pci_tbl,
7851 .probe = niu_pci_init_one,
7852 .remove = __devexit_p(niu_pci_remove_one),
7853 .suspend = niu_suspend,
7854 .resume = niu_resume,
7857 #ifdef CONFIG_SPARC64
7858 static void *niu_phys_alloc_coherent(struct device *dev, size_t size,
7859 u64 *dma_addr, gfp_t flag)
7861 unsigned long order = get_order(size);
7862 unsigned long page = __get_free_pages(flag, order);
7866 memset((char *)page, 0, PAGE_SIZE << order);
7867 *dma_addr = __pa(page);
7869 return (void *) page;
7872 static void niu_phys_free_coherent(struct device *dev, size_t size,
7873 void *cpu_addr, u64 handle)
7875 unsigned long order = get_order(size);
7877 free_pages((unsigned long) cpu_addr, order);
7880 static u64 niu_phys_map_page(struct device *dev, struct page *page,
7881 unsigned long offset, size_t size,
7882 enum dma_data_direction direction)
7884 return page_to_phys(page) + offset;
7887 static void niu_phys_unmap_page(struct device *dev, u64 dma_address,
7888 size_t size, enum dma_data_direction direction)
7890 /* Nothing to do. */
7893 static u64 niu_phys_map_single(struct device *dev, void *cpu_addr,
7895 enum dma_data_direction direction)
7897 return __pa(cpu_addr);
7900 static void niu_phys_unmap_single(struct device *dev, u64 dma_address,
7902 enum dma_data_direction direction)
7904 /* Nothing to do. */
7907 static const struct niu_ops niu_phys_ops = {
7908 .alloc_coherent = niu_phys_alloc_coherent,
7909 .free_coherent = niu_phys_free_coherent,
7910 .map_page = niu_phys_map_page,
7911 .unmap_page = niu_phys_unmap_page,
7912 .map_single = niu_phys_map_single,
7913 .unmap_single = niu_phys_unmap_single,
7916 static unsigned long res_size(struct resource *r)
7918 return r->end - r->start + 1UL;
7921 static int __devinit niu_of_probe(struct of_device *op,
7922 const struct of_device_id *match)
7924 union niu_parent_id parent_id;
7925 struct net_device *dev;
7930 niu_driver_version();
7932 reg = of_get_property(op->node, "reg", NULL);
7934 dev_err(&op->dev, PFX "%s: No 'reg' property, aborting.\n",
7935 op->node->full_name);
7939 dev = niu_alloc_and_init(&op->dev, NULL, op,
7940 &niu_phys_ops, reg[0] & 0x1);
7945 np = netdev_priv(dev);
7947 memset(&parent_id, 0, sizeof(parent_id));
7948 parent_id.of = of_get_parent(op->node);
7950 np->parent = niu_get_parent(np, &parent_id,
7954 goto err_out_free_dev;
7957 dev->features |= (NETIF_F_SG | NETIF_F_HW_CSUM);
7959 np->regs = of_ioremap(&op->resource[1], 0,
7960 res_size(&op->resource[1]),
7963 dev_err(&op->dev, PFX "Cannot map device registers, "
7966 goto err_out_release_parent;
7969 np->vir_regs_1 = of_ioremap(&op->resource[2], 0,
7970 res_size(&op->resource[2]),
7972 if (!np->vir_regs_1) {
7973 dev_err(&op->dev, PFX "Cannot map device vir registers 1, "
7976 goto err_out_iounmap;
7979 np->vir_regs_2 = of_ioremap(&op->resource[3], 0,
7980 res_size(&op->resource[3]),
7982 if (!np->vir_regs_2) {
7983 dev_err(&op->dev, PFX "Cannot map device vir registers 2, "
7986 goto err_out_iounmap;
7989 niu_assign_netdev_ops(dev);
7991 err = niu_get_invariants(np);
7994 dev_err(&op->dev, PFX "Problem fetching invariants "
7995 "of chip, aborting.\n");
7996 goto err_out_iounmap;
7999 err = register_netdev(dev);
8001 dev_err(&op->dev, PFX "Cannot register net device, "
8003 goto err_out_iounmap;
8006 dev_set_drvdata(&op->dev, dev);
8008 niu_device_announce(np);
8013 if (np->vir_regs_1) {
8014 of_iounmap(&op->resource[2], np->vir_regs_1,
8015 res_size(&op->resource[2]));
8016 np->vir_regs_1 = NULL;
8019 if (np->vir_regs_2) {
8020 of_iounmap(&op->resource[3], np->vir_regs_2,
8021 res_size(&op->resource[3]));
8022 np->vir_regs_2 = NULL;
8026 of_iounmap(&op->resource[1], np->regs,
8027 res_size(&op->resource[1]));
8031 err_out_release_parent:
8041 static int __devexit niu_of_remove(struct of_device *op)
8043 struct net_device *dev = dev_get_drvdata(&op->dev);
8046 struct niu *np = netdev_priv(dev);
8048 unregister_netdev(dev);
8050 if (np->vir_regs_1) {
8051 of_iounmap(&op->resource[2], np->vir_regs_1,
8052 res_size(&op->resource[2]));
8053 np->vir_regs_1 = NULL;
8056 if (np->vir_regs_2) {
8057 of_iounmap(&op->resource[3], np->vir_regs_2,
8058 res_size(&op->resource[3]));
8059 np->vir_regs_2 = NULL;
8063 of_iounmap(&op->resource[1], np->regs,
8064 res_size(&op->resource[1]));
8073 dev_set_drvdata(&op->dev, NULL);
8078 static struct of_device_id niu_match[] = {
8081 .compatible = "SUNW,niusl",
8085 MODULE_DEVICE_TABLE(of, niu_match);
8087 static struct of_platform_driver niu_of_driver = {
8089 .match_table = niu_match,
8090 .probe = niu_of_probe,
8091 .remove = __devexit_p(niu_of_remove),
8094 #endif /* CONFIG_SPARC64 */
8096 static int __init niu_init(void)
8100 BUILD_BUG_ON(PAGE_SIZE < 4 * 1024);
8102 niu_debug = netif_msg_init(debug, NIU_MSG_DEFAULT);
8104 #ifdef CONFIG_SPARC64
8105 err = of_register_driver(&niu_of_driver, &of_bus_type);
8109 err = pci_register_driver(&niu_pci_driver);
8110 #ifdef CONFIG_SPARC64
8112 of_unregister_driver(&niu_of_driver);
8119 static void __exit niu_exit(void)
8121 pci_unregister_driver(&niu_pci_driver);
8122 #ifdef CONFIG_SPARC64
8123 of_unregister_driver(&niu_of_driver);
8127 module_init(niu_init);
8128 module_exit(niu_exit);