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 "0.5"
37 #define DRV_MODULE_RELDATE "October 5, 2007"
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 xcvr_init_10g(struct niu
*np
)
806 struct niu_link_config
*lp
= &np
->link_config
;
807 u16 analog_stat0
, tx_alarm_status
;
811 val
= nr64_mac(XMAC_CONFIG
);
812 val
&= ~XMAC_CONFIG_LED_POLARITY
;
813 val
|= XMAC_CONFIG_FORCE_LED_ON
;
814 nw64_mac(XMAC_CONFIG
, val
);
816 /* XXX shared resource, lock parent XXX */
817 val
= nr64(MIF_CONFIG
);
818 val
|= MIF_CONFIG_INDIRECT_MODE
;
819 nw64(MIF_CONFIG
, val
);
821 err
= bcm8704_reset(np
);
825 err
= bcm8704_init_user_dev3(np
);
829 err
= mdio_read(np
, np
->phy_addr
, BCM8704_PCS_DEV_ADDR
,
833 err
&= ~BMCR_LOOPBACK
;
835 if (lp
->loopback_mode
== LOOPBACK_MAC
)
836 err
|= BMCR_LOOPBACK
;
838 err
= mdio_write(np
, np
->phy_addr
, BCM8704_PCS_DEV_ADDR
,
844 err
= mdio_read(np
, np
->phy_addr
, BCM8704_PMA_PMD_DEV_ADDR
,
848 pr_info(PFX
"Port %u PMA_PMD(MII_STAT1000) [%04x]\n",
851 err
= mdio_read(np
, np
->phy_addr
, BCM8704_USER_DEV3_ADDR
, 0x20);
854 pr_info(PFX
"Port %u USER_DEV3(0x20) [%04x]\n",
857 err
= mdio_read(np
, np
->phy_addr
, BCM8704_PHYXS_DEV_ADDR
,
861 pr_info(PFX
"Port %u PHYXS(MII_NWAYTEST) [%04x]\n",
865 /* XXX dig this out it might not be so useful XXX */
866 err
= mdio_read(np
, np
->phy_addr
, BCM8704_USER_DEV3_ADDR
,
867 BCM8704_USER_ANALOG_STATUS0
);
870 err
= mdio_read(np
, np
->phy_addr
, BCM8704_USER_DEV3_ADDR
,
871 BCM8704_USER_ANALOG_STATUS0
);
876 err
= mdio_read(np
, np
->phy_addr
, BCM8704_USER_DEV3_ADDR
,
877 BCM8704_USER_TX_ALARM_STATUS
);
880 err
= mdio_read(np
, np
->phy_addr
, BCM8704_USER_DEV3_ADDR
,
881 BCM8704_USER_TX_ALARM_STATUS
);
884 tx_alarm_status
= err
;
886 if (analog_stat0
!= 0x03fc) {
887 if ((analog_stat0
== 0x43bc) && (tx_alarm_status
!= 0)) {
888 pr_info(PFX
"Port %u cable not connected "
889 "or bad cable.\n", np
->port
);
890 } else if (analog_stat0
== 0x639c) {
891 pr_info(PFX
"Port %u optical module is bad "
892 "or missing.\n", np
->port
);
899 static int mii_reset(struct niu
*np
)
903 err
= mii_write(np
, np
->phy_addr
, MII_BMCR
, BMCR_RESET
);
908 while (--limit
>= 0) {
910 err
= mii_read(np
, np
->phy_addr
, MII_BMCR
);
913 if (!(err
& BMCR_RESET
))
917 dev_err(np
->device
, PFX
"Port %u MII would not reset, "
918 "bmcr[%04x]\n", np
->port
, err
);
925 static int mii_init_common(struct niu
*np
)
927 struct niu_link_config
*lp
= &np
->link_config
;
928 u16 bmcr
, bmsr
, adv
, estat
;
935 err
= mii_read(np
, np
->phy_addr
, MII_BMSR
);
941 if (bmsr
& BMSR_ESTATEN
) {
942 err
= mii_read(np
, np
->phy_addr
, MII_ESTATUS
);
949 err
= mii_write(np
, np
->phy_addr
, MII_BMCR
, bmcr
);
953 if (lp
->loopback_mode
== LOOPBACK_MAC
) {
954 bmcr
|= BMCR_LOOPBACK
;
955 if (lp
->active_speed
== SPEED_1000
)
956 bmcr
|= BMCR_SPEED1000
;
957 if (lp
->active_duplex
== DUPLEX_FULL
)
958 bmcr
|= BMCR_FULLDPLX
;
961 if (lp
->loopback_mode
== LOOPBACK_PHY
) {
964 aux
= (BCM5464R_AUX_CTL_EXT_LB
|
965 BCM5464R_AUX_CTL_WRITE_1
);
966 err
= mii_write(np
, np
->phy_addr
, BCM5464R_AUX_CTL
, aux
);
971 /* XXX configurable XXX */
972 /* XXX for now don't advertise half-duplex or asym pause... XXX */
973 adv
= ADVERTISE_CSMA
| ADVERTISE_PAUSE_CAP
;
974 if (bmsr
& BMSR_10FULL
)
975 adv
|= ADVERTISE_10FULL
;
976 if (bmsr
& BMSR_100FULL
)
977 adv
|= ADVERTISE_100FULL
;
978 err
= mii_write(np
, np
->phy_addr
, MII_ADVERTISE
, adv
);
982 if (bmsr
& BMSR_ESTATEN
) {
985 if (estat
& ESTATUS_1000_TFULL
)
986 ctrl1000
|= ADVERTISE_1000FULL
;
987 err
= mii_write(np
, np
->phy_addr
, MII_CTRL1000
, ctrl1000
);
991 bmcr
|= (BMCR_ANENABLE
| BMCR_ANRESTART
);
993 err
= mii_write(np
, np
->phy_addr
, MII_BMCR
, bmcr
);
997 err
= mii_read(np
, np
->phy_addr
, MII_BMCR
);
1000 err
= mii_read(np
, np
->phy_addr
, MII_BMSR
);
1004 pr_info(PFX
"Port %u after MII init bmcr[%04x] bmsr[%04x]\n",
1005 np
->port
, bmcr
, bmsr
);
1011 static int xcvr_init_1g(struct niu
*np
)
1015 /* XXX shared resource, lock parent XXX */
1016 val
= nr64(MIF_CONFIG
);
1017 val
&= ~MIF_CONFIG_INDIRECT_MODE
;
1018 nw64(MIF_CONFIG
, val
);
1020 return mii_init_common(np
);
1023 static int niu_xcvr_init(struct niu
*np
)
1025 const struct niu_phy_ops
*ops
= np
->phy_ops
;
1030 err
= ops
->xcvr_init(np
);
1035 static int niu_serdes_init(struct niu
*np
)
1037 const struct niu_phy_ops
*ops
= np
->phy_ops
;
1041 if (ops
->serdes_init
)
1042 err
= ops
->serdes_init(np
);
1047 static void niu_init_xif(struct niu
*);
1048 static void niu_handle_led(struct niu
*, int status
);
1050 static int niu_link_status_common(struct niu
*np
, int link_up
)
1052 struct niu_link_config
*lp
= &np
->link_config
;
1053 struct net_device
*dev
= np
->dev
;
1054 unsigned long flags
;
1056 if (!netif_carrier_ok(dev
) && link_up
) {
1057 niuinfo(LINK
, "%s: Link is up at %s, %s duplex\n",
1059 (lp
->active_speed
== SPEED_10000
?
1061 (lp
->active_speed
== SPEED_1000
?
1063 (lp
->active_speed
== SPEED_100
?
1064 "100Mbit/sec" : "10Mbit/sec"))),
1065 (lp
->active_duplex
== DUPLEX_FULL
?
1068 spin_lock_irqsave(&np
->lock
, flags
);
1070 niu_handle_led(np
, 1);
1071 spin_unlock_irqrestore(&np
->lock
, flags
);
1073 netif_carrier_on(dev
);
1074 } else if (netif_carrier_ok(dev
) && !link_up
) {
1075 niuwarn(LINK
, "%s: Link is down\n", dev
->name
);
1076 spin_lock_irqsave(&np
->lock
, flags
);
1077 niu_handle_led(np
, 0);
1078 spin_unlock_irqrestore(&np
->lock
, flags
);
1079 netif_carrier_off(dev
);
1085 static int link_status_10g(struct niu
*np
, int *link_up_p
)
1087 unsigned long flags
;
1092 spin_lock_irqsave(&np
->lock
, flags
);
1095 if (np
->link_config
.loopback_mode
!= LOOPBACK_DISABLED
)
1098 err
= mdio_read(np
, np
->phy_addr
, BCM8704_PMA_PMD_DEV_ADDR
,
1099 BCM8704_PMD_RCV_SIGDET
);
1102 if (!(err
& PMD_RCV_SIGDET_GLOBAL
)) {
1107 err
= mdio_read(np
, np
->phy_addr
, BCM8704_PCS_DEV_ADDR
,
1108 BCM8704_PCS_10G_R_STATUS
);
1111 if (!(err
& PCS_10G_R_STATUS_BLK_LOCK
)) {
1116 err
= mdio_read(np
, np
->phy_addr
, BCM8704_PHYXS_DEV_ADDR
,
1117 BCM8704_PHYXS_XGXS_LANE_STAT
);
1121 if (err
!= (PHYXS_XGXS_LANE_STAT_ALINGED
|
1122 PHYXS_XGXS_LANE_STAT_MAGIC
|
1123 PHYXS_XGXS_LANE_STAT_LANE3
|
1124 PHYXS_XGXS_LANE_STAT_LANE2
|
1125 PHYXS_XGXS_LANE_STAT_LANE1
|
1126 PHYXS_XGXS_LANE_STAT_LANE0
)) {
1132 np
->link_config
.active_speed
= SPEED_10000
;
1133 np
->link_config
.active_duplex
= DUPLEX_FULL
;
1137 spin_unlock_irqrestore(&np
->lock
, flags
);
1139 *link_up_p
= link_up
;
1143 static int link_status_1g(struct niu
*np
, int *link_up_p
)
1145 u16 current_speed
, bmsr
;
1146 unsigned long flags
;
1151 current_speed
= SPEED_INVALID
;
1152 current_duplex
= DUPLEX_INVALID
;
1154 spin_lock_irqsave(&np
->lock
, flags
);
1157 if (np
->link_config
.loopback_mode
!= LOOPBACK_DISABLED
)
1160 err
= mii_read(np
, np
->phy_addr
, MII_BMSR
);
1165 if (bmsr
& BMSR_LSTATUS
) {
1166 u16 adv
, lpa
, common
, estat
;
1168 err
= mii_read(np
, np
->phy_addr
, MII_ADVERTISE
);
1173 err
= mii_read(np
, np
->phy_addr
, MII_LPA
);
1180 err
= mii_read(np
, np
->phy_addr
, MII_ESTATUS
);
1186 if (estat
& (ESTATUS_1000_TFULL
| ESTATUS_1000_THALF
)) {
1187 current_speed
= SPEED_1000
;
1188 if (estat
& ESTATUS_1000_TFULL
)
1189 current_duplex
= DUPLEX_FULL
;
1191 current_duplex
= DUPLEX_HALF
;
1193 if (common
& ADVERTISE_100BASE4
) {
1194 current_speed
= SPEED_100
;
1195 current_duplex
= DUPLEX_HALF
;
1196 } else if (common
& ADVERTISE_100FULL
) {
1197 current_speed
= SPEED_100
;
1198 current_duplex
= DUPLEX_FULL
;
1199 } else if (common
& ADVERTISE_100HALF
) {
1200 current_speed
= SPEED_100
;
1201 current_duplex
= DUPLEX_HALF
;
1202 } else if (common
& ADVERTISE_10FULL
) {
1203 current_speed
= SPEED_10
;
1204 current_duplex
= DUPLEX_FULL
;
1205 } else if (common
& ADVERTISE_10HALF
) {
1206 current_speed
= SPEED_10
;
1207 current_duplex
= DUPLEX_HALF
;
1215 spin_unlock_irqrestore(&np
->lock
, flags
);
1217 *link_up_p
= link_up
;
1221 static int niu_link_status(struct niu
*np
, int *link_up_p
)
1223 const struct niu_phy_ops
*ops
= np
->phy_ops
;
1227 if (ops
->link_status
)
1228 err
= ops
->link_status(np
, link_up_p
);
1233 static void niu_timer(unsigned long __opaque
)
1235 struct niu
*np
= (struct niu
*) __opaque
;
1239 err
= niu_link_status(np
, &link_up
);
1241 niu_link_status_common(np
, link_up
);
1243 if (netif_carrier_ok(np
->dev
))
1247 np
->timer
.expires
= jiffies
+ off
;
1249 add_timer(&np
->timer
);
1252 static const struct niu_phy_ops phy_ops_10g_fiber_niu
= {
1253 .serdes_init
= serdes_init_niu
,
1254 .xcvr_init
= xcvr_init_10g
,
1255 .link_status
= link_status_10g
,
1258 static const struct niu_phy_ops phy_ops_10g_fiber
= {
1259 .serdes_init
= serdes_init_10g
,
1260 .xcvr_init
= xcvr_init_10g
,
1261 .link_status
= link_status_10g
,
1264 static const struct niu_phy_ops phy_ops_10g_copper
= {
1265 .serdes_init
= serdes_init_10g
,
1266 .link_status
= link_status_10g
, /* XXX */
1269 static const struct niu_phy_ops phy_ops_1g_fiber
= {
1270 .serdes_init
= serdes_init_1g
,
1271 .xcvr_init
= xcvr_init_1g
,
1272 .link_status
= link_status_1g
,
1275 static const struct niu_phy_ops phy_ops_1g_copper
= {
1276 .xcvr_init
= xcvr_init_1g
,
1277 .link_status
= link_status_1g
,
1280 struct niu_phy_template
{
1281 const struct niu_phy_ops
*ops
;
1285 static const struct niu_phy_template phy_template_niu
= {
1286 .ops
= &phy_ops_10g_fiber_niu
,
1287 .phy_addr_base
= 16,
1290 static const struct niu_phy_template phy_template_10g_fiber
= {
1291 .ops
= &phy_ops_10g_fiber
,
1295 static const struct niu_phy_template phy_template_10g_copper
= {
1296 .ops
= &phy_ops_10g_copper
,
1297 .phy_addr_base
= 10,
1300 static const struct niu_phy_template phy_template_1g_fiber
= {
1301 .ops
= &phy_ops_1g_fiber
,
1305 static const struct niu_phy_template phy_template_1g_copper
= {
1306 .ops
= &phy_ops_1g_copper
,
1310 static int niu_determine_phy_disposition(struct niu
*np
)
1312 struct niu_parent
*parent
= np
->parent
;
1313 u8 plat_type
= parent
->plat_type
;
1314 const struct niu_phy_template
*tp
;
1315 u32 phy_addr_off
= 0;
1317 if (plat_type
== PLAT_TYPE_NIU
) {
1318 tp
= &phy_template_niu
;
1319 phy_addr_off
+= np
->port
;
1321 switch (np
->flags
& (NIU_FLAGS_10G
| NIU_FLAGS_FIBER
)) {
1324 tp
= &phy_template_1g_copper
;
1325 if (plat_type
== PLAT_TYPE_VF_P0
)
1327 else if (plat_type
== PLAT_TYPE_VF_P1
)
1330 phy_addr_off
+= (np
->port
^ 0x3);
1335 tp
= &phy_template_1g_copper
;
1338 case NIU_FLAGS_FIBER
:
1340 tp
= &phy_template_1g_fiber
;
1343 case NIU_FLAGS_10G
| NIU_FLAGS_FIBER
:
1345 tp
= &phy_template_10g_fiber
;
1346 if (plat_type
== PLAT_TYPE_VF_P0
||
1347 plat_type
== PLAT_TYPE_VF_P1
)
1349 phy_addr_off
+= np
->port
;
1357 np
->phy_ops
= tp
->ops
;
1358 np
->phy_addr
= tp
->phy_addr_base
+ phy_addr_off
;
1363 static int niu_init_link(struct niu
*np
)
1365 struct niu_parent
*parent
= np
->parent
;
1368 if (parent
->plat_type
== PLAT_TYPE_NIU
) {
1369 err
= niu_xcvr_init(np
);
1374 err
= niu_serdes_init(np
);
1378 err
= niu_xcvr_init(np
);
1380 niu_link_status(np
, &ignore
);
1384 static void niu_set_primary_mac(struct niu
*np
, unsigned char *addr
)
1386 u16 reg0
= addr
[4] << 8 | addr
[5];
1387 u16 reg1
= addr
[2] << 8 | addr
[3];
1388 u16 reg2
= addr
[0] << 8 | addr
[1];
1390 if (np
->flags
& NIU_FLAGS_XMAC
) {
1391 nw64_mac(XMAC_ADDR0
, reg0
);
1392 nw64_mac(XMAC_ADDR1
, reg1
);
1393 nw64_mac(XMAC_ADDR2
, reg2
);
1395 nw64_mac(BMAC_ADDR0
, reg0
);
1396 nw64_mac(BMAC_ADDR1
, reg1
);
1397 nw64_mac(BMAC_ADDR2
, reg2
);
1401 static int niu_num_alt_addr(struct niu
*np
)
1403 if (np
->flags
& NIU_FLAGS_XMAC
)
1404 return XMAC_NUM_ALT_ADDR
;
1406 return BMAC_NUM_ALT_ADDR
;
1409 static int niu_set_alt_mac(struct niu
*np
, int index
, unsigned char *addr
)
1411 u16 reg0
= addr
[4] << 8 | addr
[5];
1412 u16 reg1
= addr
[2] << 8 | addr
[3];
1413 u16 reg2
= addr
[0] << 8 | addr
[1];
1415 if (index
>= niu_num_alt_addr(np
))
1418 if (np
->flags
& NIU_FLAGS_XMAC
) {
1419 nw64_mac(XMAC_ALT_ADDR0(index
), reg0
);
1420 nw64_mac(XMAC_ALT_ADDR1(index
), reg1
);
1421 nw64_mac(XMAC_ALT_ADDR2(index
), reg2
);
1423 nw64_mac(BMAC_ALT_ADDR0(index
), reg0
);
1424 nw64_mac(BMAC_ALT_ADDR1(index
), reg1
);
1425 nw64_mac(BMAC_ALT_ADDR2(index
), reg2
);
1431 static int niu_enable_alt_mac(struct niu
*np
, int index
, int on
)
1436 if (index
>= niu_num_alt_addr(np
))
1439 if (np
->flags
& NIU_FLAGS_XMAC
)
1440 reg
= XMAC_ADDR_CMPEN
;
1442 reg
= BMAC_ADDR_CMPEN
;
1446 val
= nr64_mac(reg
);
1456 static void __set_rdc_table_num_hw(struct niu
*np
, unsigned long reg
,
1457 int num
, int mac_pref
)
1459 u64 val
= nr64_mac(reg
);
1460 val
&= ~(HOST_INFO_MACRDCTBLN
| HOST_INFO_MPR
);
1463 val
|= HOST_INFO_MPR
;
1467 static int __set_rdc_table_num(struct niu
*np
,
1468 int xmac_index
, int bmac_index
,
1469 int rdc_table_num
, int mac_pref
)
1473 if (rdc_table_num
& ~HOST_INFO_MACRDCTBLN
)
1475 if (np
->flags
& NIU_FLAGS_XMAC
)
1476 reg
= XMAC_HOST_INFO(xmac_index
);
1478 reg
= BMAC_HOST_INFO(bmac_index
);
1479 __set_rdc_table_num_hw(np
, reg
, rdc_table_num
, mac_pref
);
1483 static int niu_set_primary_mac_rdc_table(struct niu
*np
, int table_num
,
1486 return __set_rdc_table_num(np
, 17, 0, table_num
, mac_pref
);
1489 static int niu_set_multicast_mac_rdc_table(struct niu
*np
, int table_num
,
1492 return __set_rdc_table_num(np
, 16, 8, table_num
, mac_pref
);
1495 static int niu_set_alt_mac_rdc_table(struct niu
*np
, int idx
,
1496 int table_num
, int mac_pref
)
1498 if (idx
>= niu_num_alt_addr(np
))
1500 return __set_rdc_table_num(np
, idx
, idx
+ 1, table_num
, mac_pref
);
1503 static u64
vlan_entry_set_parity(u64 reg_val
)
1508 port01_mask
= 0x00ff;
1509 port23_mask
= 0xff00;
1511 if (hweight64(reg_val
& port01_mask
) & 1)
1512 reg_val
|= ENET_VLAN_TBL_PARITY0
;
1514 reg_val
&= ~ENET_VLAN_TBL_PARITY0
;
1516 if (hweight64(reg_val
& port23_mask
) & 1)
1517 reg_val
|= ENET_VLAN_TBL_PARITY1
;
1519 reg_val
&= ~ENET_VLAN_TBL_PARITY1
;
1524 static void vlan_tbl_write(struct niu
*np
, unsigned long index
,
1525 int port
, int vpr
, int rdc_table
)
1527 u64 reg_val
= nr64(ENET_VLAN_TBL(index
));
1529 reg_val
&= ~((ENET_VLAN_TBL_VPR
|
1530 ENET_VLAN_TBL_VLANRDCTBLN
) <<
1531 ENET_VLAN_TBL_SHIFT(port
));
1533 reg_val
|= (ENET_VLAN_TBL_VPR
<<
1534 ENET_VLAN_TBL_SHIFT(port
));
1535 reg_val
|= (rdc_table
<< ENET_VLAN_TBL_SHIFT(port
));
1537 reg_val
= vlan_entry_set_parity(reg_val
);
1539 nw64(ENET_VLAN_TBL(index
), reg_val
);
1542 static void vlan_tbl_clear(struct niu
*np
)
1546 for (i
= 0; i
< ENET_VLAN_TBL_NUM_ENTRIES
; i
++)
1547 nw64(ENET_VLAN_TBL(i
), 0);
1550 static int tcam_wait_bit(struct niu
*np
, u64 bit
)
1554 while (--limit
> 0) {
1555 if (nr64(TCAM_CTL
) & bit
)
1565 static int tcam_flush(struct niu
*np
, int index
)
1567 nw64(TCAM_KEY_0
, 0x00);
1568 nw64(TCAM_KEY_MASK_0
, 0xff);
1569 nw64(TCAM_CTL
, (TCAM_CTL_RWC_TCAM_WRITE
| index
));
1571 return tcam_wait_bit(np
, TCAM_CTL_STAT
);
1575 static int tcam_read(struct niu
*np
, int index
,
1576 u64
*key
, u64
*mask
)
1580 nw64(TCAM_CTL
, (TCAM_CTL_RWC_TCAM_READ
| index
));
1581 err
= tcam_wait_bit(np
, TCAM_CTL_STAT
);
1583 key
[0] = nr64(TCAM_KEY_0
);
1584 key
[1] = nr64(TCAM_KEY_1
);
1585 key
[2] = nr64(TCAM_KEY_2
);
1586 key
[3] = nr64(TCAM_KEY_3
);
1587 mask
[0] = nr64(TCAM_KEY_MASK_0
);
1588 mask
[1] = nr64(TCAM_KEY_MASK_1
);
1589 mask
[2] = nr64(TCAM_KEY_MASK_2
);
1590 mask
[3] = nr64(TCAM_KEY_MASK_3
);
1596 static int tcam_write(struct niu
*np
, int index
,
1597 u64
*key
, u64
*mask
)
1599 nw64(TCAM_KEY_0
, key
[0]);
1600 nw64(TCAM_KEY_1
, key
[1]);
1601 nw64(TCAM_KEY_2
, key
[2]);
1602 nw64(TCAM_KEY_3
, key
[3]);
1603 nw64(TCAM_KEY_MASK_0
, mask
[0]);
1604 nw64(TCAM_KEY_MASK_1
, mask
[1]);
1605 nw64(TCAM_KEY_MASK_2
, mask
[2]);
1606 nw64(TCAM_KEY_MASK_3
, mask
[3]);
1607 nw64(TCAM_CTL
, (TCAM_CTL_RWC_TCAM_WRITE
| index
));
1609 return tcam_wait_bit(np
, TCAM_CTL_STAT
);
1613 static int tcam_assoc_read(struct niu
*np
, int index
, u64
*data
)
1617 nw64(TCAM_CTL
, (TCAM_CTL_RWC_RAM_READ
| index
));
1618 err
= tcam_wait_bit(np
, TCAM_CTL_STAT
);
1620 *data
= nr64(TCAM_KEY_1
);
1626 static int tcam_assoc_write(struct niu
*np
, int index
, u64 assoc_data
)
1628 nw64(TCAM_KEY_1
, assoc_data
);
1629 nw64(TCAM_CTL
, (TCAM_CTL_RWC_RAM_WRITE
| index
));
1631 return tcam_wait_bit(np
, TCAM_CTL_STAT
);
1634 static void tcam_enable(struct niu
*np
, int on
)
1636 u64 val
= nr64(FFLP_CFG_1
);
1639 val
&= ~FFLP_CFG_1_TCAM_DIS
;
1641 val
|= FFLP_CFG_1_TCAM_DIS
;
1642 nw64(FFLP_CFG_1
, val
);
1645 static void tcam_set_lat_and_ratio(struct niu
*np
, u64 latency
, u64 ratio
)
1647 u64 val
= nr64(FFLP_CFG_1
);
1649 val
&= ~(FFLP_CFG_1_FFLPINITDONE
|
1651 FFLP_CFG_1_CAMRATIO
);
1652 val
|= (latency
<< FFLP_CFG_1_CAMLAT_SHIFT
);
1653 val
|= (ratio
<< FFLP_CFG_1_CAMRATIO_SHIFT
);
1654 nw64(FFLP_CFG_1
, val
);
1656 val
= nr64(FFLP_CFG_1
);
1657 val
|= FFLP_CFG_1_FFLPINITDONE
;
1658 nw64(FFLP_CFG_1
, val
);
1661 static int tcam_user_eth_class_enable(struct niu
*np
, unsigned long class,
1667 if (class < CLASS_CODE_ETHERTYPE1
||
1668 class > CLASS_CODE_ETHERTYPE2
)
1671 reg
= L2_CLS(class - CLASS_CODE_ETHERTYPE1
);
1683 static int tcam_user_eth_class_set(struct niu
*np
, unsigned long class,
1689 if (class < CLASS_CODE_ETHERTYPE1
||
1690 class > CLASS_CODE_ETHERTYPE2
||
1691 (ether_type
& ~(u64
)0xffff) != 0)
1694 reg
= L2_CLS(class - CLASS_CODE_ETHERTYPE1
);
1696 val
&= ~L2_CLS_ETYPE
;
1697 val
|= (ether_type
<< L2_CLS_ETYPE_SHIFT
);
1704 static int tcam_user_ip_class_enable(struct niu
*np
, unsigned long class,
1710 if (class < CLASS_CODE_USER_PROG1
||
1711 class > CLASS_CODE_USER_PROG4
)
1714 reg
= L3_CLS(class - CLASS_CODE_USER_PROG1
);
1717 val
|= L3_CLS_VALID
;
1719 val
&= ~L3_CLS_VALID
;
1726 static int tcam_user_ip_class_set(struct niu
*np
, unsigned long class,
1727 int ipv6
, u64 protocol_id
,
1728 u64 tos_mask
, u64 tos_val
)
1733 if (class < CLASS_CODE_USER_PROG1
||
1734 class > CLASS_CODE_USER_PROG4
||
1735 (protocol_id
& ~(u64
)0xff) != 0 ||
1736 (tos_mask
& ~(u64
)0xff) != 0 ||
1737 (tos_val
& ~(u64
)0xff) != 0)
1740 reg
= L3_CLS(class - CLASS_CODE_USER_PROG1
);
1742 val
&= ~(L3_CLS_IPVER
| L3_CLS_PID
|
1743 L3_CLS_TOSMASK
| L3_CLS_TOS
);
1745 val
|= L3_CLS_IPVER
;
1746 val
|= (protocol_id
<< L3_CLS_PID_SHIFT
);
1747 val
|= (tos_mask
<< L3_CLS_TOSMASK_SHIFT
);
1748 val
|= (tos_val
<< L3_CLS_TOS_SHIFT
);
1755 static int tcam_early_init(struct niu
*np
)
1761 tcam_set_lat_and_ratio(np
,
1762 DEFAULT_TCAM_LATENCY
,
1763 DEFAULT_TCAM_ACCESS_RATIO
);
1764 for (i
= CLASS_CODE_ETHERTYPE1
; i
<= CLASS_CODE_ETHERTYPE2
; i
++) {
1765 err
= tcam_user_eth_class_enable(np
, i
, 0);
1769 for (i
= CLASS_CODE_USER_PROG1
; i
<= CLASS_CODE_USER_PROG4
; i
++) {
1770 err
= tcam_user_ip_class_enable(np
, i
, 0);
1778 static int tcam_flush_all(struct niu
*np
)
1782 for (i
= 0; i
< np
->parent
->tcam_num_entries
; i
++) {
1783 int err
= tcam_flush(np
, i
);
1790 static u64
hash_addr_regval(unsigned long index
, unsigned long num_entries
)
1792 return ((u64
)index
| (num_entries
== 1 ?
1793 HASH_TBL_ADDR_AUTOINC
: 0));
1797 static int hash_read(struct niu
*np
, unsigned long partition
,
1798 unsigned long index
, unsigned long num_entries
,
1801 u64 val
= hash_addr_regval(index
, num_entries
);
1804 if (partition
>= FCRAM_NUM_PARTITIONS
||
1805 index
+ num_entries
> FCRAM_SIZE
)
1808 nw64(HASH_TBL_ADDR(partition
), val
);
1809 for (i
= 0; i
< num_entries
; i
++)
1810 data
[i
] = nr64(HASH_TBL_DATA(partition
));
1816 static int hash_write(struct niu
*np
, unsigned long partition
,
1817 unsigned long index
, unsigned long num_entries
,
1820 u64 val
= hash_addr_regval(index
, num_entries
);
1823 if (partition
>= FCRAM_NUM_PARTITIONS
||
1824 index
+ (num_entries
* 8) > FCRAM_SIZE
)
1827 nw64(HASH_TBL_ADDR(partition
), val
);
1828 for (i
= 0; i
< num_entries
; i
++)
1829 nw64(HASH_TBL_DATA(partition
), data
[i
]);
1834 static void fflp_reset(struct niu
*np
)
1838 nw64(FFLP_CFG_1
, FFLP_CFG_1_PIO_FIO_RST
);
1840 nw64(FFLP_CFG_1
, 0);
1842 val
= FFLP_CFG_1_FCRAMOUTDR_NORMAL
| FFLP_CFG_1_FFLPINITDONE
;
1843 nw64(FFLP_CFG_1
, val
);
1846 static void fflp_set_timings(struct niu
*np
)
1848 u64 val
= nr64(FFLP_CFG_1
);
1850 val
&= ~FFLP_CFG_1_FFLPINITDONE
;
1851 val
|= (DEFAULT_FCRAMRATIO
<< FFLP_CFG_1_FCRAMRATIO_SHIFT
);
1852 nw64(FFLP_CFG_1
, val
);
1854 val
= nr64(FFLP_CFG_1
);
1855 val
|= FFLP_CFG_1_FFLPINITDONE
;
1856 nw64(FFLP_CFG_1
, val
);
1858 val
= nr64(FCRAM_REF_TMR
);
1859 val
&= ~(FCRAM_REF_TMR_MAX
| FCRAM_REF_TMR_MIN
);
1860 val
|= (DEFAULT_FCRAM_REFRESH_MAX
<< FCRAM_REF_TMR_MAX_SHIFT
);
1861 val
|= (DEFAULT_FCRAM_REFRESH_MIN
<< FCRAM_REF_TMR_MIN_SHIFT
);
1862 nw64(FCRAM_REF_TMR
, val
);
1865 static int fflp_set_partition(struct niu
*np
, u64 partition
,
1866 u64 mask
, u64 base
, int enable
)
1871 if (partition
>= FCRAM_NUM_PARTITIONS
||
1872 (mask
& ~(u64
)0x1f) != 0 ||
1873 (base
& ~(u64
)0x1f) != 0)
1876 reg
= FLW_PRT_SEL(partition
);
1879 val
&= ~(FLW_PRT_SEL_EXT
| FLW_PRT_SEL_MASK
| FLW_PRT_SEL_BASE
);
1880 val
|= (mask
<< FLW_PRT_SEL_MASK_SHIFT
);
1881 val
|= (base
<< FLW_PRT_SEL_BASE_SHIFT
);
1883 val
|= FLW_PRT_SEL_EXT
;
1889 static int fflp_disable_all_partitions(struct niu
*np
)
1893 for (i
= 0; i
< FCRAM_NUM_PARTITIONS
; i
++) {
1894 int err
= fflp_set_partition(np
, 0, 0, 0, 0);
1901 static void fflp_llcsnap_enable(struct niu
*np
, int on
)
1903 u64 val
= nr64(FFLP_CFG_1
);
1906 val
|= FFLP_CFG_1_LLCSNAP
;
1908 val
&= ~FFLP_CFG_1_LLCSNAP
;
1909 nw64(FFLP_CFG_1
, val
);
1912 static void fflp_errors_enable(struct niu
*np
, int on
)
1914 u64 val
= nr64(FFLP_CFG_1
);
1917 val
&= ~FFLP_CFG_1_ERRORDIS
;
1919 val
|= FFLP_CFG_1_ERRORDIS
;
1920 nw64(FFLP_CFG_1
, val
);
1923 static int fflp_hash_clear(struct niu
*np
)
1925 struct fcram_hash_ipv4 ent
;
1928 /* IPV4 hash entry with valid bit clear, rest is don't care. */
1929 memset(&ent
, 0, sizeof(ent
));
1930 ent
.header
= HASH_HEADER_EXT
;
1932 for (i
= 0; i
< FCRAM_SIZE
; i
+= sizeof(ent
)) {
1933 int err
= hash_write(np
, 0, i
, 1, (u64
*) &ent
);
1940 static int fflp_early_init(struct niu
*np
)
1942 struct niu_parent
*parent
;
1943 unsigned long flags
;
1946 niu_lock_parent(np
, flags
);
1948 parent
= np
->parent
;
1950 if (!(parent
->flags
& PARENT_FLGS_CLS_HWINIT
)) {
1951 niudbg(PROBE
, "fflp_early_init: Initting hw on port %u\n",
1953 if (np
->parent
->plat_type
!= PLAT_TYPE_NIU
) {
1955 fflp_set_timings(np
);
1956 err
= fflp_disable_all_partitions(np
);
1958 niudbg(PROBE
, "fflp_disable_all_partitions "
1959 "failed, err=%d\n", err
);
1964 err
= tcam_early_init(np
);
1966 niudbg(PROBE
, "tcam_early_init failed, err=%d\n",
1970 fflp_llcsnap_enable(np
, 1);
1971 fflp_errors_enable(np
, 0);
1975 err
= tcam_flush_all(np
);
1977 niudbg(PROBE
, "tcam_flush_all failed, err=%d\n",
1981 if (np
->parent
->plat_type
!= PLAT_TYPE_NIU
) {
1982 err
= fflp_hash_clear(np
);
1984 niudbg(PROBE
, "fflp_hash_clear failed, "
1992 niudbg(PROBE
, "fflp_early_init: Success\n");
1993 parent
->flags
|= PARENT_FLGS_CLS_HWINIT
;
1996 niu_unlock_parent(np
, flags
);
2000 static int niu_set_flow_key(struct niu
*np
, unsigned long class_code
, u64 key
)
2002 if (class_code
< CLASS_CODE_USER_PROG1
||
2003 class_code
> CLASS_CODE_SCTP_IPV6
)
2006 nw64(FLOW_KEY(class_code
- CLASS_CODE_USER_PROG1
), key
);
2010 static int niu_set_tcam_key(struct niu
*np
, unsigned long class_code
, u64 key
)
2012 if (class_code
< CLASS_CODE_USER_PROG1
||
2013 class_code
> CLASS_CODE_SCTP_IPV6
)
2016 nw64(TCAM_KEY(class_code
- CLASS_CODE_USER_PROG1
), key
);
2020 static void niu_rx_skb_append(struct sk_buff
*skb
, struct page
*page
,
2021 u32 offset
, u32 size
)
2023 int i
= skb_shinfo(skb
)->nr_frags
;
2024 skb_frag_t
*frag
= &skb_shinfo(skb
)->frags
[i
];
2027 frag
->page_offset
= offset
;
2031 skb
->data_len
+= size
;
2032 skb
->truesize
+= size
;
2034 skb_shinfo(skb
)->nr_frags
= i
+ 1;
2037 static unsigned int niu_hash_rxaddr(struct rx_ring_info
*rp
, u64 a
)
2040 a
^= (a
>> ilog2(MAX_RBR_RING_SIZE
));
2042 return (a
& (MAX_RBR_RING_SIZE
- 1));
2045 static struct page
*niu_find_rxpage(struct rx_ring_info
*rp
, u64 addr
,
2046 struct page
***link
)
2048 unsigned int h
= niu_hash_rxaddr(rp
, addr
);
2049 struct page
*p
, **pp
;
2052 pp
= &rp
->rxhash
[h
];
2053 for (; (p
= *pp
) != NULL
; pp
= (struct page
**) &p
->mapping
) {
2054 if (p
->index
== addr
) {
2063 static void niu_hash_page(struct rx_ring_info
*rp
, struct page
*page
, u64 base
)
2065 unsigned int h
= niu_hash_rxaddr(rp
, base
);
2068 page
->mapping
= (struct address_space
*) rp
->rxhash
[h
];
2069 rp
->rxhash
[h
] = page
;
2072 static int niu_rbr_add_page(struct niu
*np
, struct rx_ring_info
*rp
,
2073 gfp_t mask
, int start_index
)
2079 page
= alloc_page(mask
);
2083 addr
= np
->ops
->map_page(np
->device
, page
, 0,
2084 PAGE_SIZE
, DMA_FROM_DEVICE
);
2086 niu_hash_page(rp
, page
, addr
);
2087 if (rp
->rbr_blocks_per_page
> 1)
2088 atomic_add(rp
->rbr_blocks_per_page
- 1,
2089 &compound_head(page
)->_count
);
2091 for (i
= 0; i
< rp
->rbr_blocks_per_page
; i
++) {
2092 __le32
*rbr
= &rp
->rbr
[start_index
+ i
];
2094 *rbr
= cpu_to_le32(addr
>> RBR_DESCR_ADDR_SHIFT
);
2095 addr
+= rp
->rbr_block_size
;
2101 static void niu_rbr_refill(struct niu
*np
, struct rx_ring_info
*rp
, gfp_t mask
)
2103 int index
= rp
->rbr_index
;
2106 if ((rp
->rbr_pending
% rp
->rbr_blocks_per_page
) == 0) {
2107 int err
= niu_rbr_add_page(np
, rp
, mask
, index
);
2109 if (unlikely(err
)) {
2114 rp
->rbr_index
+= rp
->rbr_blocks_per_page
;
2115 BUG_ON(rp
->rbr_index
> rp
->rbr_table_size
);
2116 if (rp
->rbr_index
== rp
->rbr_table_size
)
2119 if (rp
->rbr_pending
>= rp
->rbr_kick_thresh
) {
2120 nw64(RBR_KICK(rp
->rx_channel
), rp
->rbr_pending
);
2121 rp
->rbr_pending
= 0;
2126 static int niu_rx_pkt_ignore(struct niu
*np
, struct rx_ring_info
*rp
)
2128 unsigned int index
= rp
->rcr_index
;
2133 struct page
*page
, **link
;
2139 val
= le64_to_cpup(&rp
->rcr
[index
]);
2140 addr
= (val
& RCR_ENTRY_PKT_BUF_ADDR
) <<
2141 RCR_ENTRY_PKT_BUF_ADDR_SHIFT
;
2142 page
= niu_find_rxpage(rp
, addr
, &link
);
2144 rcr_size
= rp
->rbr_sizes
[(val
& RCR_ENTRY_PKTBUFSZ
) >>
2145 RCR_ENTRY_PKTBUFSZ_SHIFT
];
2146 if ((page
->index
+ PAGE_SIZE
) - rcr_size
== addr
) {
2147 *link
= (struct page
*) page
->mapping
;
2148 np
->ops
->unmap_page(np
->device
, page
->index
,
2149 PAGE_SIZE
, DMA_FROM_DEVICE
);
2151 page
->mapping
= NULL
;
2153 rp
->rbr_refill_pending
++;
2156 index
= NEXT_RCR(rp
, index
);
2157 if (!(val
& RCR_ENTRY_MULTI
))
2161 rp
->rcr_index
= index
;
2166 static int niu_process_rx_pkt(struct niu
*np
, struct rx_ring_info
*rp
)
2168 unsigned int index
= rp
->rcr_index
;
2169 struct sk_buff
*skb
;
2172 skb
= netdev_alloc_skb(np
->dev
, RX_SKB_ALLOC_SIZE
);
2174 return niu_rx_pkt_ignore(np
, rp
);
2178 struct page
*page
, **link
;
2179 u32 rcr_size
, append_size
;
2184 val
= le64_to_cpup(&rp
->rcr
[index
]);
2186 len
= (val
& RCR_ENTRY_L2_LEN
) >>
2187 RCR_ENTRY_L2_LEN_SHIFT
;
2190 addr
= (val
& RCR_ENTRY_PKT_BUF_ADDR
) <<
2191 RCR_ENTRY_PKT_BUF_ADDR_SHIFT
;
2192 page
= niu_find_rxpage(rp
, addr
, &link
);
2194 rcr_size
= rp
->rbr_sizes
[(val
& RCR_ENTRY_PKTBUFSZ
) >>
2195 RCR_ENTRY_PKTBUFSZ_SHIFT
];
2197 off
= addr
& ~PAGE_MASK
;
2198 append_size
= rcr_size
;
2205 ptype
= (val
>> RCR_ENTRY_PKT_TYPE_SHIFT
);
2206 if ((ptype
== RCR_PKT_TYPE_TCP
||
2207 ptype
== RCR_PKT_TYPE_UDP
) &&
2208 !(val
& (RCR_ENTRY_NOPORT
|
2210 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
2212 skb
->ip_summed
= CHECKSUM_NONE
;
2214 if (!(val
& RCR_ENTRY_MULTI
))
2215 append_size
= len
- skb
->len
;
2217 niu_rx_skb_append(skb
, page
, off
, append_size
);
2218 if ((page
->index
+ rp
->rbr_block_size
) - rcr_size
== addr
) {
2219 *link
= (struct page
*) page
->mapping
;
2220 np
->ops
->unmap_page(np
->device
, page
->index
,
2221 PAGE_SIZE
, DMA_FROM_DEVICE
);
2223 page
->mapping
= NULL
;
2224 rp
->rbr_refill_pending
++;
2228 index
= NEXT_RCR(rp
, index
);
2229 if (!(val
& RCR_ENTRY_MULTI
))
2233 rp
->rcr_index
= index
;
2235 skb_reserve(skb
, NET_IP_ALIGN
);
2236 __pskb_pull_tail(skb
, min(len
, NIU_RXPULL_MAX
));
2239 rp
->rx_bytes
+= skb
->len
;
2241 skb
->protocol
= eth_type_trans(skb
, np
->dev
);
2242 netif_receive_skb(skb
);
2247 static int niu_rbr_fill(struct niu
*np
, struct rx_ring_info
*rp
, gfp_t mask
)
2249 int blocks_per_page
= rp
->rbr_blocks_per_page
;
2250 int err
, index
= rp
->rbr_index
;
2253 while (index
< (rp
->rbr_table_size
- blocks_per_page
)) {
2254 err
= niu_rbr_add_page(np
, rp
, mask
, index
);
2258 index
+= blocks_per_page
;
2261 rp
->rbr_index
= index
;
2265 static void niu_rbr_free(struct niu
*np
, struct rx_ring_info
*rp
)
2269 for (i
= 0; i
< MAX_RBR_RING_SIZE
; i
++) {
2272 page
= rp
->rxhash
[i
];
2274 struct page
*next
= (struct page
*) page
->mapping
;
2275 u64 base
= page
->index
;
2277 np
->ops
->unmap_page(np
->device
, base
, PAGE_SIZE
,
2280 page
->mapping
= NULL
;
2288 for (i
= 0; i
< rp
->rbr_table_size
; i
++)
2289 rp
->rbr
[i
] = cpu_to_le32(0);
2293 static int release_tx_packet(struct niu
*np
, struct tx_ring_info
*rp
, int idx
)
2295 struct tx_buff_info
*tb
= &rp
->tx_buffs
[idx
];
2296 struct sk_buff
*skb
= tb
->skb
;
2297 struct tx_pkt_hdr
*tp
;
2301 tp
= (struct tx_pkt_hdr
*) skb
->data
;
2302 tx_flags
= le64_to_cpup(&tp
->flags
);
2305 rp
->tx_bytes
+= (((tx_flags
& TXHDR_LEN
) >> TXHDR_LEN_SHIFT
) -
2306 ((tx_flags
& TXHDR_PAD
) / 2));
2308 len
= skb_headlen(skb
);
2309 np
->ops
->unmap_single(np
->device
, tb
->mapping
,
2310 len
, DMA_TO_DEVICE
);
2312 if (le64_to_cpu(rp
->descr
[idx
]) & TX_DESC_MARK
)
2317 idx
= NEXT_TX(rp
, idx
);
2318 len
-= MAX_TX_DESC_LEN
;
2321 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++) {
2322 tb
= &rp
->tx_buffs
[idx
];
2323 BUG_ON(tb
->skb
!= NULL
);
2324 np
->ops
->unmap_page(np
->device
, tb
->mapping
,
2325 skb_shinfo(skb
)->frags
[i
].size
,
2327 idx
= NEXT_TX(rp
, idx
);
2335 #define NIU_TX_WAKEUP_THRESH(rp) ((rp)->pending / 4)
2337 static void niu_tx_work(struct niu
*np
, struct tx_ring_info
*rp
)
2344 if (unlikely(!(cs
& (TX_CS_MK
| TX_CS_MMK
))))
2347 tmp
= pkt_cnt
= (cs
& TX_CS_PKT_CNT
) >> TX_CS_PKT_CNT_SHIFT
;
2348 pkt_cnt
= (pkt_cnt
- rp
->last_pkt_cnt
) &
2349 (TX_CS_PKT_CNT
>> TX_CS_PKT_CNT_SHIFT
);
2351 rp
->last_pkt_cnt
= tmp
;
2355 niudbg(TX_DONE
, "%s: niu_tx_work() pkt_cnt[%u] cons[%d]\n",
2356 np
->dev
->name
, pkt_cnt
, cons
);
2359 cons
= release_tx_packet(np
, rp
, cons
);
2365 if (unlikely(netif_queue_stopped(np
->dev
) &&
2366 (niu_tx_avail(rp
) > NIU_TX_WAKEUP_THRESH(rp
)))) {
2367 netif_tx_lock(np
->dev
);
2368 if (netif_queue_stopped(np
->dev
) &&
2369 (niu_tx_avail(rp
) > NIU_TX_WAKEUP_THRESH(rp
)))
2370 netif_wake_queue(np
->dev
);
2371 netif_tx_unlock(np
->dev
);
2375 static int niu_rx_work(struct niu
*np
, struct rx_ring_info
*rp
, int budget
)
2377 int qlen
, rcr_done
= 0, work_done
= 0;
2378 struct rxdma_mailbox
*mbox
= rp
->mbox
;
2382 stat
= nr64(RX_DMA_CTL_STAT(rp
->rx_channel
));
2383 qlen
= nr64(RCRSTAT_A(rp
->rx_channel
)) & RCRSTAT_A_QLEN
;
2385 stat
= le64_to_cpup(&mbox
->rx_dma_ctl_stat
);
2386 qlen
= (le64_to_cpup(&mbox
->rcrstat_a
) & RCRSTAT_A_QLEN
);
2388 mbox
->rx_dma_ctl_stat
= 0;
2389 mbox
->rcrstat_a
= 0;
2391 niudbg(RX_STATUS
, "%s: niu_rx_work(chan[%d]), stat[%llx] qlen=%d\n",
2392 np
->dev
->name
, rp
->rx_channel
, (unsigned long long) stat
, qlen
);
2394 rcr_done
= work_done
= 0;
2395 qlen
= min(qlen
, budget
);
2396 while (work_done
< qlen
) {
2397 rcr_done
+= niu_process_rx_pkt(np
, rp
);
2401 if (rp
->rbr_refill_pending
>= rp
->rbr_kick_thresh
) {
2404 for (i
= 0; i
< rp
->rbr_refill_pending
; i
++)
2405 niu_rbr_refill(np
, rp
, GFP_ATOMIC
);
2406 rp
->rbr_refill_pending
= 0;
2409 stat
= (RX_DMA_CTL_STAT_MEX
|
2410 ((u64
)work_done
<< RX_DMA_CTL_STAT_PKTREAD_SHIFT
) |
2411 ((u64
)rcr_done
<< RX_DMA_CTL_STAT_PTRREAD_SHIFT
));
2413 nw64(RX_DMA_CTL_STAT(rp
->rx_channel
), stat
);
2418 static int niu_poll_core(struct niu
*np
, struct niu_ldg
*lp
, int budget
)
2421 u32 tx_vec
= (v0
>> 32);
2422 u32 rx_vec
= (v0
& 0xffffffff);
2423 int i
, work_done
= 0;
2425 niudbg(INTR
, "%s: niu_poll_core() v0[%016llx]\n",
2426 np
->dev
->name
, (unsigned long long) v0
);
2428 for (i
= 0; i
< np
->num_tx_rings
; i
++) {
2429 struct tx_ring_info
*rp
= &np
->tx_rings
[i
];
2430 if (tx_vec
& (1 << rp
->tx_channel
))
2431 niu_tx_work(np
, rp
);
2432 nw64(LD_IM0(LDN_TXDMA(rp
->tx_channel
)), 0);
2435 for (i
= 0; i
< np
->num_rx_rings
; i
++) {
2436 struct rx_ring_info
*rp
= &np
->rx_rings
[i
];
2438 if (rx_vec
& (1 << rp
->rx_channel
)) {
2441 this_work_done
= niu_rx_work(np
, rp
,
2444 budget
-= this_work_done
;
2445 work_done
+= this_work_done
;
2447 nw64(LD_IM0(LDN_RXDMA(rp
->rx_channel
)), 0);
2453 static int niu_poll(struct napi_struct
*napi
, int budget
)
2455 struct niu_ldg
*lp
= container_of(napi
, struct niu_ldg
, napi
);
2456 struct niu
*np
= lp
->np
;
2459 work_done
= niu_poll_core(np
, lp
, budget
);
2461 if (work_done
< budget
) {
2462 netif_rx_complete(np
->dev
, napi
);
2463 niu_ldg_rearm(np
, lp
, 1);
2468 static void niu_log_rxchan_errors(struct niu
*np
, struct rx_ring_info
*rp
,
2471 dev_err(np
->device
, PFX
"%s: RX channel %u errors ( ",
2472 np
->dev
->name
, rp
->rx_channel
);
2474 if (stat
& RX_DMA_CTL_STAT_RBR_TMOUT
)
2475 printk("RBR_TMOUT ");
2476 if (stat
& RX_DMA_CTL_STAT_RSP_CNT_ERR
)
2478 if (stat
& RX_DMA_CTL_STAT_BYTE_EN_BUS
)
2479 printk("BYTE_EN_BUS ");
2480 if (stat
& RX_DMA_CTL_STAT_RSP_DAT_ERR
)
2482 if (stat
& RX_DMA_CTL_STAT_RCR_ACK_ERR
)
2484 if (stat
& RX_DMA_CTL_STAT_RCR_SHA_PAR
)
2485 printk("RCR_SHA_PAR ");
2486 if (stat
& RX_DMA_CTL_STAT_RBR_PRE_PAR
)
2487 printk("RBR_PRE_PAR ");
2488 if (stat
& RX_DMA_CTL_STAT_CONFIG_ERR
)
2490 if (stat
& RX_DMA_CTL_STAT_RCRINCON
)
2491 printk("RCRINCON ");
2492 if (stat
& RX_DMA_CTL_STAT_RCRFULL
)
2494 if (stat
& RX_DMA_CTL_STAT_RBRFULL
)
2496 if (stat
& RX_DMA_CTL_STAT_RBRLOGPAGE
)
2497 printk("RBRLOGPAGE ");
2498 if (stat
& RX_DMA_CTL_STAT_CFIGLOGPAGE
)
2499 printk("CFIGLOGPAGE ");
2500 if (stat
& RX_DMA_CTL_STAT_DC_FIFO_ERR
)
2506 static int niu_rx_error(struct niu
*np
, struct rx_ring_info
*rp
)
2508 u64 stat
= nr64(RX_DMA_CTL_STAT(rp
->rx_channel
));
2512 if (stat
& (RX_DMA_CTL_STAT_CHAN_FATAL
|
2513 RX_DMA_CTL_STAT_PORT_FATAL
))
2517 dev_err(np
->device
, PFX
"%s: RX channel %u error, stat[%llx]\n",
2518 np
->dev
->name
, rp
->rx_channel
,
2519 (unsigned long long) stat
);
2521 niu_log_rxchan_errors(np
, rp
, stat
);
2524 nw64(RX_DMA_CTL_STAT(rp
->rx_channel
),
2525 stat
& RX_DMA_CTL_WRITE_CLEAR_ERRS
);
2530 static void niu_log_txchan_errors(struct niu
*np
, struct tx_ring_info
*rp
,
2533 dev_err(np
->device
, PFX
"%s: TX channel %u errors ( ",
2534 np
->dev
->name
, rp
->tx_channel
);
2536 if (cs
& TX_CS_MBOX_ERR
)
2538 if (cs
& TX_CS_PKT_SIZE_ERR
)
2539 printk("PKT_SIZE ");
2540 if (cs
& TX_CS_TX_RING_OFLOW
)
2541 printk("TX_RING_OFLOW ");
2542 if (cs
& TX_CS_PREF_BUF_PAR_ERR
)
2543 printk("PREF_BUF_PAR ");
2544 if (cs
& TX_CS_NACK_PREF
)
2545 printk("NACK_PREF ");
2546 if (cs
& TX_CS_NACK_PKT_RD
)
2547 printk("NACK_PKT_RD ");
2548 if (cs
& TX_CS_CONF_PART_ERR
)
2549 printk("CONF_PART ");
2550 if (cs
& TX_CS_PKT_PRT_ERR
)
2556 static int niu_tx_error(struct niu
*np
, struct tx_ring_info
*rp
)
2560 cs
= nr64(TX_CS(rp
->tx_channel
));
2561 logh
= nr64(TX_RNG_ERR_LOGH(rp
->tx_channel
));
2562 logl
= nr64(TX_RNG_ERR_LOGL(rp
->tx_channel
));
2564 dev_err(np
->device
, PFX
"%s: TX channel %u error, "
2565 "cs[%llx] logh[%llx] logl[%llx]\n",
2566 np
->dev
->name
, rp
->tx_channel
,
2567 (unsigned long long) cs
,
2568 (unsigned long long) logh
,
2569 (unsigned long long) logl
);
2571 niu_log_txchan_errors(np
, rp
, cs
);
2576 static int niu_mif_interrupt(struct niu
*np
)
2578 u64 mif_status
= nr64(MIF_STATUS
);
2581 if (np
->flags
& NIU_FLAGS_XMAC
) {
2582 u64 xrxmac_stat
= nr64_mac(XRXMAC_STATUS
);
2584 if (xrxmac_stat
& XRXMAC_STATUS_PHY_MDINT
)
2588 dev_err(np
->device
, PFX
"%s: MIF interrupt, "
2589 "stat[%llx] phy_mdint(%d)\n",
2590 np
->dev
->name
, (unsigned long long) mif_status
, phy_mdint
);
2595 static void niu_xmac_interrupt(struct niu
*np
)
2597 struct niu_xmac_stats
*mp
= &np
->mac_stats
.xmac
;
2600 val
= nr64_mac(XTXMAC_STATUS
);
2601 if (val
& XTXMAC_STATUS_FRAME_CNT_EXP
)
2602 mp
->tx_frames
+= TXMAC_FRM_CNT_COUNT
;
2603 if (val
& XTXMAC_STATUS_BYTE_CNT_EXP
)
2604 mp
->tx_bytes
+= TXMAC_BYTE_CNT_COUNT
;
2605 if (val
& XTXMAC_STATUS_TXFIFO_XFR_ERR
)
2606 mp
->tx_fifo_errors
++;
2607 if (val
& XTXMAC_STATUS_TXMAC_OFLOW
)
2608 mp
->tx_overflow_errors
++;
2609 if (val
& XTXMAC_STATUS_MAX_PSIZE_ERR
)
2610 mp
->tx_max_pkt_size_errors
++;
2611 if (val
& XTXMAC_STATUS_TXMAC_UFLOW
)
2612 mp
->tx_underflow_errors
++;
2614 val
= nr64_mac(XRXMAC_STATUS
);
2615 if (val
& XRXMAC_STATUS_LCL_FLT_STATUS
)
2616 mp
->rx_local_faults
++;
2617 if (val
& XRXMAC_STATUS_RFLT_DET
)
2618 mp
->rx_remote_faults
++;
2619 if (val
& XRXMAC_STATUS_LFLT_CNT_EXP
)
2620 mp
->rx_link_faults
+= LINK_FAULT_CNT_COUNT
;
2621 if (val
& XRXMAC_STATUS_ALIGNERR_CNT_EXP
)
2622 mp
->rx_align_errors
+= RXMAC_ALIGN_ERR_CNT_COUNT
;
2623 if (val
& XRXMAC_STATUS_RXFRAG_CNT_EXP
)
2624 mp
->rx_frags
+= RXMAC_FRAG_CNT_COUNT
;
2625 if (val
& XRXMAC_STATUS_RXMULTF_CNT_EXP
)
2626 mp
->rx_mcasts
+= RXMAC_MC_FRM_CNT_COUNT
;
2627 if (val
& XRXMAC_STATUS_RXBCAST_CNT_EXP
)
2628 mp
->rx_bcasts
+= RXMAC_BC_FRM_CNT_COUNT
;
2629 if (val
& XRXMAC_STATUS_RXBCAST_CNT_EXP
)
2630 mp
->rx_bcasts
+= RXMAC_BC_FRM_CNT_COUNT
;
2631 if (val
& XRXMAC_STATUS_RXHIST1_CNT_EXP
)
2632 mp
->rx_hist_cnt1
+= RXMAC_HIST_CNT1_COUNT
;
2633 if (val
& XRXMAC_STATUS_RXHIST2_CNT_EXP
)
2634 mp
->rx_hist_cnt2
+= RXMAC_HIST_CNT2_COUNT
;
2635 if (val
& XRXMAC_STATUS_RXHIST3_CNT_EXP
)
2636 mp
->rx_hist_cnt3
+= RXMAC_HIST_CNT3_COUNT
;
2637 if (val
& XRXMAC_STATUS_RXHIST4_CNT_EXP
)
2638 mp
->rx_hist_cnt4
+= RXMAC_HIST_CNT4_COUNT
;
2639 if (val
& XRXMAC_STATUS_RXHIST5_CNT_EXP
)
2640 mp
->rx_hist_cnt5
+= RXMAC_HIST_CNT5_COUNT
;
2641 if (val
& XRXMAC_STATUS_RXHIST6_CNT_EXP
)
2642 mp
->rx_hist_cnt6
+= RXMAC_HIST_CNT6_COUNT
;
2643 if (val
& XRXMAC_STATUS_RXHIST7_CNT_EXP
)
2644 mp
->rx_hist_cnt7
+= RXMAC_HIST_CNT7_COUNT
;
2645 if (val
& XRXMAC_STAT_MSK_RXOCTET_CNT_EXP
)
2646 mp
->rx_octets
+= RXMAC_BT_CNT_COUNT
;
2647 if (val
& XRXMAC_STATUS_CVIOLERR_CNT_EXP
)
2648 mp
->rx_code_violations
+= RXMAC_CD_VIO_CNT_COUNT
;
2649 if (val
& XRXMAC_STATUS_LENERR_CNT_EXP
)
2650 mp
->rx_len_errors
+= RXMAC_MPSZER_CNT_COUNT
;
2651 if (val
& XRXMAC_STATUS_CRCERR_CNT_EXP
)
2652 mp
->rx_crc_errors
+= RXMAC_CRC_ER_CNT_COUNT
;
2653 if (val
& XRXMAC_STATUS_RXUFLOW
)
2654 mp
->rx_underflows
++;
2655 if (val
& XRXMAC_STATUS_RXOFLOW
)
2658 val
= nr64_mac(XMAC_FC_STAT
);
2659 if (val
& XMAC_FC_STAT_TX_MAC_NPAUSE
)
2660 mp
->pause_off_state
++;
2661 if (val
& XMAC_FC_STAT_TX_MAC_PAUSE
)
2662 mp
->pause_on_state
++;
2663 if (val
& XMAC_FC_STAT_RX_MAC_RPAUSE
)
2664 mp
->pause_received
++;
2667 static void niu_bmac_interrupt(struct niu
*np
)
2669 struct niu_bmac_stats
*mp
= &np
->mac_stats
.bmac
;
2672 val
= nr64_mac(BTXMAC_STATUS
);
2673 if (val
& BTXMAC_STATUS_UNDERRUN
)
2674 mp
->tx_underflow_errors
++;
2675 if (val
& BTXMAC_STATUS_MAX_PKT_ERR
)
2676 mp
->tx_max_pkt_size_errors
++;
2677 if (val
& BTXMAC_STATUS_BYTE_CNT_EXP
)
2678 mp
->tx_bytes
+= BTXMAC_BYTE_CNT_COUNT
;
2679 if (val
& BTXMAC_STATUS_FRAME_CNT_EXP
)
2680 mp
->tx_frames
+= BTXMAC_FRM_CNT_COUNT
;
2682 val
= nr64_mac(BRXMAC_STATUS
);
2683 if (val
& BRXMAC_STATUS_OVERFLOW
)
2685 if (val
& BRXMAC_STATUS_FRAME_CNT_EXP
)
2686 mp
->rx_frames
+= BRXMAC_FRAME_CNT_COUNT
;
2687 if (val
& BRXMAC_STATUS_ALIGN_ERR_EXP
)
2688 mp
->rx_align_errors
+= BRXMAC_ALIGN_ERR_CNT_COUNT
;
2689 if (val
& BRXMAC_STATUS_CRC_ERR_EXP
)
2690 mp
->rx_crc_errors
+= BRXMAC_ALIGN_ERR_CNT_COUNT
;
2691 if (val
& BRXMAC_STATUS_LEN_ERR_EXP
)
2692 mp
->rx_len_errors
+= BRXMAC_CODE_VIOL_ERR_CNT_COUNT
;
2694 val
= nr64_mac(BMAC_CTRL_STATUS
);
2695 if (val
& BMAC_CTRL_STATUS_NOPAUSE
)
2696 mp
->pause_off_state
++;
2697 if (val
& BMAC_CTRL_STATUS_PAUSE
)
2698 mp
->pause_on_state
++;
2699 if (val
& BMAC_CTRL_STATUS_PAUSE_RECV
)
2700 mp
->pause_received
++;
2703 static int niu_mac_interrupt(struct niu
*np
)
2705 if (np
->flags
& NIU_FLAGS_XMAC
)
2706 niu_xmac_interrupt(np
);
2708 niu_bmac_interrupt(np
);
2713 static void niu_log_device_error(struct niu
*np
, u64 stat
)
2715 dev_err(np
->device
, PFX
"%s: Core device errors ( ",
2718 if (stat
& SYS_ERR_MASK_META2
)
2720 if (stat
& SYS_ERR_MASK_META1
)
2722 if (stat
& SYS_ERR_MASK_PEU
)
2724 if (stat
& SYS_ERR_MASK_TXC
)
2726 if (stat
& SYS_ERR_MASK_RDMC
)
2728 if (stat
& SYS_ERR_MASK_TDMC
)
2730 if (stat
& SYS_ERR_MASK_ZCP
)
2732 if (stat
& SYS_ERR_MASK_FFLP
)
2734 if (stat
& SYS_ERR_MASK_IPP
)
2736 if (stat
& SYS_ERR_MASK_MAC
)
2738 if (stat
& SYS_ERR_MASK_SMX
)
2744 static int niu_device_error(struct niu
*np
)
2746 u64 stat
= nr64(SYS_ERR_STAT
);
2748 dev_err(np
->device
, PFX
"%s: Core device error, stat[%llx]\n",
2749 np
->dev
->name
, (unsigned long long) stat
);
2751 niu_log_device_error(np
, stat
);
2756 static int niu_slowpath_interrupt(struct niu
*np
, struct niu_ldg
*lp
,
2757 u64 v0
, u64 v1
, u64 v2
)
2766 if (v1
& 0x00000000ffffffffULL
) {
2767 u32 rx_vec
= (v1
& 0xffffffff);
2769 for (i
= 0; i
< np
->num_rx_rings
; i
++) {
2770 struct rx_ring_info
*rp
= &np
->rx_rings
[i
];
2772 if (rx_vec
& (1 << rp
->rx_channel
)) {
2773 int r
= niu_rx_error(np
, rp
);
2778 nw64(RX_DMA_CTL_STAT(rp
->rx_channel
),
2779 RX_DMA_CTL_STAT_MEX
);
2784 if (v1
& 0x7fffffff00000000ULL
) {
2785 u32 tx_vec
= (v1
>> 32) & 0x7fffffff;
2787 for (i
= 0; i
< np
->num_tx_rings
; i
++) {
2788 struct tx_ring_info
*rp
= &np
->tx_rings
[i
];
2790 if (tx_vec
& (1 << rp
->tx_channel
)) {
2791 int r
= niu_tx_error(np
, rp
);
2797 if ((v0
| v1
) & 0x8000000000000000ULL
) {
2798 int r
= niu_mif_interrupt(np
);
2804 int r
= niu_mac_interrupt(np
);
2809 int r
= niu_device_error(np
);
2816 niu_enable_interrupts(np
, 0);
2821 static void niu_rxchan_intr(struct niu
*np
, struct rx_ring_info
*rp
,
2824 struct rxdma_mailbox
*mbox
= rp
->mbox
;
2825 u64 stat_write
, stat
= le64_to_cpup(&mbox
->rx_dma_ctl_stat
);
2827 stat_write
= (RX_DMA_CTL_STAT_RCRTHRES
|
2828 RX_DMA_CTL_STAT_RCRTO
);
2829 nw64(RX_DMA_CTL_STAT(rp
->rx_channel
), stat_write
);
2831 niudbg(INTR
, "%s: rxchan_intr stat[%llx]\n",
2832 np
->dev
->name
, (unsigned long long) stat
);
2835 static void niu_txchan_intr(struct niu
*np
, struct tx_ring_info
*rp
,
2838 rp
->tx_cs
= nr64(TX_CS(rp
->tx_channel
));
2840 niudbg(INTR
, "%s: txchan_intr cs[%llx]\n",
2841 np
->dev
->name
, (unsigned long long) rp
->tx_cs
);
2844 static void __niu_fastpath_interrupt(struct niu
*np
, int ldg
, u64 v0
)
2846 struct niu_parent
*parent
= np
->parent
;
2850 tx_vec
= (v0
>> 32);
2851 rx_vec
= (v0
& 0xffffffff);
2853 for (i
= 0; i
< np
->num_rx_rings
; i
++) {
2854 struct rx_ring_info
*rp
= &np
->rx_rings
[i
];
2855 int ldn
= LDN_RXDMA(rp
->rx_channel
);
2857 if (parent
->ldg_map
[ldn
] != ldg
)
2860 nw64(LD_IM0(ldn
), LD_IM0_MASK
);
2861 if (rx_vec
& (1 << rp
->rx_channel
))
2862 niu_rxchan_intr(np
, rp
, ldn
);
2865 for (i
= 0; i
< np
->num_tx_rings
; i
++) {
2866 struct tx_ring_info
*rp
= &np
->tx_rings
[i
];
2867 int ldn
= LDN_TXDMA(rp
->tx_channel
);
2869 if (parent
->ldg_map
[ldn
] != ldg
)
2872 nw64(LD_IM0(ldn
), LD_IM0_MASK
);
2873 if (tx_vec
& (1 << rp
->tx_channel
))
2874 niu_txchan_intr(np
, rp
, ldn
);
2878 static void niu_schedule_napi(struct niu
*np
, struct niu_ldg
*lp
,
2879 u64 v0
, u64 v1
, u64 v2
)
2881 if (likely(netif_rx_schedule_prep(np
->dev
, &lp
->napi
))) {
2885 __niu_fastpath_interrupt(np
, lp
->ldg_num
, v0
);
2886 __netif_rx_schedule(np
->dev
, &lp
->napi
);
2890 static irqreturn_t
niu_interrupt(int irq
, void *dev_id
)
2892 struct niu_ldg
*lp
= dev_id
;
2893 struct niu
*np
= lp
->np
;
2894 int ldg
= lp
->ldg_num
;
2895 unsigned long flags
;
2898 if (netif_msg_intr(np
))
2899 printk(KERN_DEBUG PFX
"niu_interrupt() ldg[%p](%d) ",
2902 spin_lock_irqsave(&np
->lock
, flags
);
2904 v0
= nr64(LDSV0(ldg
));
2905 v1
= nr64(LDSV1(ldg
));
2906 v2
= nr64(LDSV2(ldg
));
2908 if (netif_msg_intr(np
))
2909 printk("v0[%llx] v1[%llx] v2[%llx]\n",
2910 (unsigned long long) v0
,
2911 (unsigned long long) v1
,
2912 (unsigned long long) v2
);
2914 if (unlikely(!v0
&& !v1
&& !v2
)) {
2915 spin_unlock_irqrestore(&np
->lock
, flags
);
2919 if (unlikely((v0
& ((u64
)1 << LDN_MIF
)) || v1
|| v2
)) {
2920 int err
= niu_slowpath_interrupt(np
, lp
, v0
, v1
, v2
);
2924 if (likely(v0
& ~((u64
)1 << LDN_MIF
)))
2925 niu_schedule_napi(np
, lp
, v0
, v1
, v2
);
2927 niu_ldg_rearm(np
, lp
, 1);
2929 spin_unlock_irqrestore(&np
->lock
, flags
);
2934 static void niu_free_rx_ring_info(struct niu
*np
, struct rx_ring_info
*rp
)
2937 np
->ops
->free_coherent(np
->device
,
2938 sizeof(struct rxdma_mailbox
),
2939 rp
->mbox
, rp
->mbox_dma
);
2943 np
->ops
->free_coherent(np
->device
,
2944 MAX_RCR_RING_SIZE
* sizeof(__le64
),
2945 rp
->rcr
, rp
->rcr_dma
);
2947 rp
->rcr_table_size
= 0;
2951 niu_rbr_free(np
, rp
);
2953 np
->ops
->free_coherent(np
->device
,
2954 MAX_RBR_RING_SIZE
* sizeof(__le32
),
2955 rp
->rbr
, rp
->rbr_dma
);
2957 rp
->rbr_table_size
= 0;
2964 static void niu_free_tx_ring_info(struct niu
*np
, struct tx_ring_info
*rp
)
2967 np
->ops
->free_coherent(np
->device
,
2968 sizeof(struct txdma_mailbox
),
2969 rp
->mbox
, rp
->mbox_dma
);
2975 for (i
= 0; i
< MAX_TX_RING_SIZE
; i
++) {
2976 if (rp
->tx_buffs
[i
].skb
)
2977 (void) release_tx_packet(np
, rp
, i
);
2980 np
->ops
->free_coherent(np
->device
,
2981 MAX_TX_RING_SIZE
* sizeof(__le64
),
2982 rp
->descr
, rp
->descr_dma
);
2991 static void niu_free_channels(struct niu
*np
)
2996 for (i
= 0; i
< np
->num_rx_rings
; i
++) {
2997 struct rx_ring_info
*rp
= &np
->rx_rings
[i
];
2999 niu_free_rx_ring_info(np
, rp
);
3001 kfree(np
->rx_rings
);
3002 np
->rx_rings
= NULL
;
3003 np
->num_rx_rings
= 0;
3007 for (i
= 0; i
< np
->num_tx_rings
; i
++) {
3008 struct tx_ring_info
*rp
= &np
->tx_rings
[i
];
3010 niu_free_tx_ring_info(np
, rp
);
3012 kfree(np
->tx_rings
);
3013 np
->tx_rings
= NULL
;
3014 np
->num_tx_rings
= 0;
3018 static int niu_alloc_rx_ring_info(struct niu
*np
,
3019 struct rx_ring_info
*rp
)
3021 BUILD_BUG_ON(sizeof(struct rxdma_mailbox
) != 64);
3023 rp
->rxhash
= kzalloc(MAX_RBR_RING_SIZE
* sizeof(struct page
*),
3028 rp
->mbox
= np
->ops
->alloc_coherent(np
->device
,
3029 sizeof(struct rxdma_mailbox
),
3030 &rp
->mbox_dma
, GFP_KERNEL
);
3033 if ((unsigned long)rp
->mbox
& (64UL - 1)) {
3034 dev_err(np
->device
, PFX
"%s: Coherent alloc gives misaligned "
3035 "RXDMA mailbox %p\n", np
->dev
->name
, rp
->mbox
);
3039 rp
->rcr
= np
->ops
->alloc_coherent(np
->device
,
3040 MAX_RCR_RING_SIZE
* sizeof(__le64
),
3041 &rp
->rcr_dma
, GFP_KERNEL
);
3044 if ((unsigned long)rp
->rcr
& (64UL - 1)) {
3045 dev_err(np
->device
, PFX
"%s: Coherent alloc gives misaligned "
3046 "RXDMA RCR table %p\n", np
->dev
->name
, rp
->rcr
);
3049 rp
->rcr_table_size
= MAX_RCR_RING_SIZE
;
3052 rp
->rbr
= np
->ops
->alloc_coherent(np
->device
,
3053 MAX_RBR_RING_SIZE
* sizeof(__le32
),
3054 &rp
->rbr_dma
, GFP_KERNEL
);
3057 if ((unsigned long)rp
->rbr
& (64UL - 1)) {
3058 dev_err(np
->device
, PFX
"%s: Coherent alloc gives misaligned "
3059 "RXDMA RBR table %p\n", np
->dev
->name
, rp
->rbr
);
3062 rp
->rbr_table_size
= MAX_RBR_RING_SIZE
;
3064 rp
->rbr_pending
= 0;
3069 static void niu_set_max_burst(struct niu
*np
, struct tx_ring_info
*rp
)
3071 int mtu
= np
->dev
->mtu
;
3073 /* These values are recommended by the HW designers for fair
3074 * utilization of DRR amongst the rings.
3076 rp
->max_burst
= mtu
+ 32;
3077 if (rp
->max_burst
> 4096)
3078 rp
->max_burst
= 4096;
3081 static int niu_alloc_tx_ring_info(struct niu
*np
,
3082 struct tx_ring_info
*rp
)
3084 BUILD_BUG_ON(sizeof(struct txdma_mailbox
) != 64);
3086 rp
->mbox
= np
->ops
->alloc_coherent(np
->device
,
3087 sizeof(struct txdma_mailbox
),
3088 &rp
->mbox_dma
, GFP_KERNEL
);
3091 if ((unsigned long)rp
->mbox
& (64UL - 1)) {
3092 dev_err(np
->device
, PFX
"%s: Coherent alloc gives misaligned "
3093 "TXDMA mailbox %p\n", np
->dev
->name
, rp
->mbox
);
3097 rp
->descr
= np
->ops
->alloc_coherent(np
->device
,
3098 MAX_TX_RING_SIZE
* sizeof(__le64
),
3099 &rp
->descr_dma
, GFP_KERNEL
);
3102 if ((unsigned long)rp
->descr
& (64UL - 1)) {
3103 dev_err(np
->device
, PFX
"%s: Coherent alloc gives misaligned "
3104 "TXDMA descr table %p\n", np
->dev
->name
, rp
->descr
);
3108 rp
->pending
= MAX_TX_RING_SIZE
;
3113 /* XXX make these configurable... XXX */
3114 rp
->mark_freq
= rp
->pending
/ 4;
3116 niu_set_max_burst(np
, rp
);
3121 static void niu_size_rbr(struct niu
*np
, struct rx_ring_info
*rp
)
3125 bss
= min(PAGE_SHIFT
, 15);
3127 rp
->rbr_block_size
= 1 << bss
;
3128 rp
->rbr_blocks_per_page
= 1 << (PAGE_SHIFT
-bss
);
3130 rp
->rbr_sizes
[0] = 256;
3131 rp
->rbr_sizes
[1] = 1024;
3132 if (np
->dev
->mtu
> ETH_DATA_LEN
) {
3133 switch (PAGE_SIZE
) {
3135 rp
->rbr_sizes
[2] = 4096;
3139 rp
->rbr_sizes
[2] = 8192;
3143 rp
->rbr_sizes
[2] = 2048;
3145 rp
->rbr_sizes
[3] = rp
->rbr_block_size
;
3148 static int niu_alloc_channels(struct niu
*np
)
3150 struct niu_parent
*parent
= np
->parent
;
3151 int first_rx_channel
, first_tx_channel
;
3155 first_rx_channel
= first_tx_channel
= 0;
3156 for (i
= 0; i
< port
; i
++) {
3157 first_rx_channel
+= parent
->rxchan_per_port
[i
];
3158 first_tx_channel
+= parent
->txchan_per_port
[i
];
3161 np
->num_rx_rings
= parent
->rxchan_per_port
[port
];
3162 np
->num_tx_rings
= parent
->txchan_per_port
[port
];
3164 np
->rx_rings
= kzalloc(np
->num_rx_rings
* sizeof(struct rx_ring_info
),
3170 for (i
= 0; i
< np
->num_rx_rings
; i
++) {
3171 struct rx_ring_info
*rp
= &np
->rx_rings
[i
];
3174 rp
->rx_channel
= first_rx_channel
+ i
;
3176 err
= niu_alloc_rx_ring_info(np
, rp
);
3180 niu_size_rbr(np
, rp
);
3182 /* XXX better defaults, configurable, etc... XXX */
3183 rp
->nonsyn_window
= 64;
3184 rp
->nonsyn_threshold
= rp
->rcr_table_size
- 64;
3185 rp
->syn_window
= 64;
3186 rp
->syn_threshold
= rp
->rcr_table_size
- 64;
3187 rp
->rcr_pkt_threshold
= 16;
3188 rp
->rcr_timeout
= 8;
3189 rp
->rbr_kick_thresh
= RBR_REFILL_MIN
;
3190 if (rp
->rbr_kick_thresh
< rp
->rbr_blocks_per_page
)
3191 rp
->rbr_kick_thresh
= rp
->rbr_blocks_per_page
;
3193 err
= niu_rbr_fill(np
, rp
, GFP_KERNEL
);
3198 np
->tx_rings
= kzalloc(np
->num_tx_rings
* sizeof(struct tx_ring_info
),
3204 for (i
= 0; i
< np
->num_tx_rings
; i
++) {
3205 struct tx_ring_info
*rp
= &np
->tx_rings
[i
];
3208 rp
->tx_channel
= first_tx_channel
+ i
;
3210 err
= niu_alloc_tx_ring_info(np
, rp
);
3218 niu_free_channels(np
);
3222 static int niu_tx_cs_sng_poll(struct niu
*np
, int channel
)
3226 while (--limit
> 0) {
3227 u64 val
= nr64(TX_CS(channel
));
3228 if (val
& TX_CS_SNG_STATE
)
3234 static int niu_tx_channel_stop(struct niu
*np
, int channel
)
3236 u64 val
= nr64(TX_CS(channel
));
3238 val
|= TX_CS_STOP_N_GO
;
3239 nw64(TX_CS(channel
), val
);
3241 return niu_tx_cs_sng_poll(np
, channel
);
3244 static int niu_tx_cs_reset_poll(struct niu
*np
, int channel
)
3248 while (--limit
> 0) {
3249 u64 val
= nr64(TX_CS(channel
));
3250 if (!(val
& TX_CS_RST
))
3256 static int niu_tx_channel_reset(struct niu
*np
, int channel
)
3258 u64 val
= nr64(TX_CS(channel
));
3262 nw64(TX_CS(channel
), val
);
3264 err
= niu_tx_cs_reset_poll(np
, channel
);
3266 nw64(TX_RING_KICK(channel
), 0);
3271 static int niu_tx_channel_lpage_init(struct niu
*np
, int channel
)
3275 nw64(TX_LOG_MASK1(channel
), 0);
3276 nw64(TX_LOG_VAL1(channel
), 0);
3277 nw64(TX_LOG_MASK2(channel
), 0);
3278 nw64(TX_LOG_VAL2(channel
), 0);
3279 nw64(TX_LOG_PAGE_RELO1(channel
), 0);
3280 nw64(TX_LOG_PAGE_RELO2(channel
), 0);
3281 nw64(TX_LOG_PAGE_HDL(channel
), 0);
3283 val
= (u64
)np
->port
<< TX_LOG_PAGE_VLD_FUNC_SHIFT
;
3284 val
|= (TX_LOG_PAGE_VLD_PAGE0
| TX_LOG_PAGE_VLD_PAGE1
);
3285 nw64(TX_LOG_PAGE_VLD(channel
), val
);
3287 /* XXX TXDMA 32bit mode? XXX */
3292 static void niu_txc_enable_port(struct niu
*np
, int on
)
3294 unsigned long flags
;
3297 niu_lock_parent(np
, flags
);
3298 val
= nr64(TXC_CONTROL
);
3299 mask
= (u64
)1 << np
->port
;
3301 val
|= TXC_CONTROL_ENABLE
| mask
;
3304 if ((val
& ~TXC_CONTROL_ENABLE
) == 0)
3305 val
&= ~TXC_CONTROL_ENABLE
;
3307 nw64(TXC_CONTROL
, val
);
3308 niu_unlock_parent(np
, flags
);
3311 static void niu_txc_set_imask(struct niu
*np
, u64 imask
)
3313 unsigned long flags
;
3316 niu_lock_parent(np
, flags
);
3317 val
= nr64(TXC_INT_MASK
);
3318 val
&= ~TXC_INT_MASK_VAL(np
->port
);
3319 val
|= (imask
<< TXC_INT_MASK_VAL_SHIFT(np
->port
));
3320 niu_unlock_parent(np
, flags
);
3323 static void niu_txc_port_dma_enable(struct niu
*np
, int on
)
3330 for (i
= 0; i
< np
->num_tx_rings
; i
++)
3331 val
|= (1 << np
->tx_rings
[i
].tx_channel
);
3333 nw64(TXC_PORT_DMA(np
->port
), val
);
3336 static int niu_init_one_tx_channel(struct niu
*np
, struct tx_ring_info
*rp
)
3338 int err
, channel
= rp
->tx_channel
;
3341 err
= niu_tx_channel_stop(np
, channel
);
3345 err
= niu_tx_channel_reset(np
, channel
);
3349 err
= niu_tx_channel_lpage_init(np
, channel
);
3353 nw64(TXC_DMA_MAX(channel
), rp
->max_burst
);
3354 nw64(TX_ENT_MSK(channel
), 0);
3356 if (rp
->descr_dma
& ~(TX_RNG_CFIG_STADDR_BASE
|
3357 TX_RNG_CFIG_STADDR
)) {
3358 dev_err(np
->device
, PFX
"%s: TX ring channel %d "
3359 "DMA addr (%llx) is not aligned.\n",
3360 np
->dev
->name
, channel
,
3361 (unsigned long long) rp
->descr_dma
);
3365 /* The length field in TX_RNG_CFIG is measured in 64-byte
3366 * blocks. rp->pending is the number of TX descriptors in
3367 * our ring, 8 bytes each, thus we divide by 8 bytes more
3368 * to get the proper value the chip wants.
3370 ring_len
= (rp
->pending
/ 8);
3372 val
= ((ring_len
<< TX_RNG_CFIG_LEN_SHIFT
) |
3374 nw64(TX_RNG_CFIG(channel
), val
);
3376 if (((rp
->mbox_dma
>> 32) & ~TXDMA_MBH_MBADDR
) ||
3377 ((u32
)rp
->mbox_dma
& ~TXDMA_MBL_MBADDR
)) {
3378 dev_err(np
->device
, PFX
"%s: TX ring channel %d "
3379 "MBOX addr (%llx) is has illegal bits.\n",
3380 np
->dev
->name
, channel
,
3381 (unsigned long long) rp
->mbox_dma
);
3384 nw64(TXDMA_MBH(channel
), rp
->mbox_dma
>> 32);
3385 nw64(TXDMA_MBL(channel
), rp
->mbox_dma
& TXDMA_MBL_MBADDR
);
3387 nw64(TX_CS(channel
), 0);
3389 rp
->last_pkt_cnt
= 0;
3394 static void niu_init_rdc_groups(struct niu
*np
)
3396 struct niu_rdc_tables
*tp
= &np
->parent
->rdc_group_cfg
[np
->port
];
3397 int i
, first_table_num
= tp
->first_table_num
;
3399 for (i
= 0; i
< tp
->num_tables
; i
++) {
3400 struct rdc_table
*tbl
= &tp
->tables
[i
];
3401 int this_table
= first_table_num
+ i
;
3404 for (slot
= 0; slot
< NIU_RDC_TABLE_SLOTS
; slot
++)
3405 nw64(RDC_TBL(this_table
, slot
),
3406 tbl
->rxdma_channel
[slot
]);
3409 nw64(DEF_RDC(np
->port
), np
->parent
->rdc_default
[np
->port
]);
3412 static void niu_init_drr_weight(struct niu
*np
)
3414 int type
= phy_decode(np
->parent
->port_phy
, np
->port
);
3419 val
= PT_DRR_WEIGHT_DEFAULT_10G
;
3424 val
= PT_DRR_WEIGHT_DEFAULT_1G
;
3427 nw64(PT_DRR_WT(np
->port
), val
);
3430 static int niu_init_hostinfo(struct niu
*np
)
3432 struct niu_parent
*parent
= np
->parent
;
3433 struct niu_rdc_tables
*tp
= &parent
->rdc_group_cfg
[np
->port
];
3434 int i
, err
, num_alt
= niu_num_alt_addr(np
);
3435 int first_rdc_table
= tp
->first_table_num
;
3437 err
= niu_set_primary_mac_rdc_table(np
, first_rdc_table
, 1);
3441 err
= niu_set_multicast_mac_rdc_table(np
, first_rdc_table
, 1);
3445 for (i
= 0; i
< num_alt
; i
++) {
3446 err
= niu_set_alt_mac_rdc_table(np
, i
, first_rdc_table
, 1);
3454 static int niu_rx_channel_reset(struct niu
*np
, int channel
)
3456 return niu_set_and_wait_clear(np
, RXDMA_CFIG1(channel
),
3457 RXDMA_CFIG1_RST
, 1000, 10,
3461 static int niu_rx_channel_lpage_init(struct niu
*np
, int channel
)
3465 nw64(RX_LOG_MASK1(channel
), 0);
3466 nw64(RX_LOG_VAL1(channel
), 0);
3467 nw64(RX_LOG_MASK2(channel
), 0);
3468 nw64(RX_LOG_VAL2(channel
), 0);
3469 nw64(RX_LOG_PAGE_RELO1(channel
), 0);
3470 nw64(RX_LOG_PAGE_RELO2(channel
), 0);
3471 nw64(RX_LOG_PAGE_HDL(channel
), 0);
3473 val
= (u64
)np
->port
<< RX_LOG_PAGE_VLD_FUNC_SHIFT
;
3474 val
|= (RX_LOG_PAGE_VLD_PAGE0
| RX_LOG_PAGE_VLD_PAGE1
);
3475 nw64(RX_LOG_PAGE_VLD(channel
), val
);
3480 static void niu_rx_channel_wred_init(struct niu
*np
, struct rx_ring_info
*rp
)
3484 val
= (((u64
)rp
->nonsyn_window
<< RDC_RED_PARA_WIN_SHIFT
) |
3485 ((u64
)rp
->nonsyn_threshold
<< RDC_RED_PARA_THRE_SHIFT
) |
3486 ((u64
)rp
->syn_window
<< RDC_RED_PARA_WIN_SYN_SHIFT
) |
3487 ((u64
)rp
->syn_threshold
<< RDC_RED_PARA_THRE_SYN_SHIFT
));
3488 nw64(RDC_RED_PARA(rp
->rx_channel
), val
);
3491 static int niu_compute_rbr_cfig_b(struct rx_ring_info
*rp
, u64
*ret
)
3495 switch (rp
->rbr_block_size
) {
3497 val
|= (RBR_BLKSIZE_4K
<< RBR_CFIG_B_BLKSIZE_SHIFT
);
3500 val
|= (RBR_BLKSIZE_8K
<< RBR_CFIG_B_BLKSIZE_SHIFT
);
3503 val
|= (RBR_BLKSIZE_16K
<< RBR_CFIG_B_BLKSIZE_SHIFT
);
3506 val
|= (RBR_BLKSIZE_32K
<< RBR_CFIG_B_BLKSIZE_SHIFT
);
3511 val
|= RBR_CFIG_B_VLD2
;
3512 switch (rp
->rbr_sizes
[2]) {
3514 val
|= (RBR_BUFSZ2_2K
<< RBR_CFIG_B_BUFSZ2_SHIFT
);
3517 val
|= (RBR_BUFSZ2_4K
<< RBR_CFIG_B_BUFSZ2_SHIFT
);
3520 val
|= (RBR_BUFSZ2_8K
<< RBR_CFIG_B_BUFSZ2_SHIFT
);
3523 val
|= (RBR_BUFSZ2_16K
<< RBR_CFIG_B_BUFSZ2_SHIFT
);
3529 val
|= RBR_CFIG_B_VLD1
;
3530 switch (rp
->rbr_sizes
[1]) {
3532 val
|= (RBR_BUFSZ1_1K
<< RBR_CFIG_B_BUFSZ1_SHIFT
);
3535 val
|= (RBR_BUFSZ1_2K
<< RBR_CFIG_B_BUFSZ1_SHIFT
);
3538 val
|= (RBR_BUFSZ1_4K
<< RBR_CFIG_B_BUFSZ1_SHIFT
);
3541 val
|= (RBR_BUFSZ1_8K
<< RBR_CFIG_B_BUFSZ1_SHIFT
);
3547 val
|= RBR_CFIG_B_VLD0
;
3548 switch (rp
->rbr_sizes
[0]) {
3550 val
|= (RBR_BUFSZ0_256
<< RBR_CFIG_B_BUFSZ0_SHIFT
);
3553 val
|= (RBR_BUFSZ0_512
<< RBR_CFIG_B_BUFSZ0_SHIFT
);
3556 val
|= (RBR_BUFSZ0_1K
<< RBR_CFIG_B_BUFSZ0_SHIFT
);
3559 val
|= (RBR_BUFSZ0_2K
<< RBR_CFIG_B_BUFSZ0_SHIFT
);
3570 static int niu_enable_rx_channel(struct niu
*np
, int channel
, int on
)
3572 u64 val
= nr64(RXDMA_CFIG1(channel
));
3576 val
|= RXDMA_CFIG1_EN
;
3578 val
&= ~RXDMA_CFIG1_EN
;
3579 nw64(RXDMA_CFIG1(channel
), val
);
3582 while (--limit
> 0) {
3583 if (nr64(RXDMA_CFIG1(channel
)) & RXDMA_CFIG1_QST
)
3592 static int niu_init_one_rx_channel(struct niu
*np
, struct rx_ring_info
*rp
)
3594 int err
, channel
= rp
->rx_channel
;
3597 err
= niu_rx_channel_reset(np
, channel
);
3601 err
= niu_rx_channel_lpage_init(np
, channel
);
3605 niu_rx_channel_wred_init(np
, rp
);
3607 nw64(RX_DMA_ENT_MSK(channel
), RX_DMA_ENT_MSK_RBR_EMPTY
);
3608 nw64(RX_DMA_CTL_STAT(channel
),
3609 (RX_DMA_CTL_STAT_MEX
|
3610 RX_DMA_CTL_STAT_RCRTHRES
|
3611 RX_DMA_CTL_STAT_RCRTO
|
3612 RX_DMA_CTL_STAT_RBR_EMPTY
));
3613 nw64(RXDMA_CFIG1(channel
), rp
->mbox_dma
>> 32);
3614 nw64(RXDMA_CFIG2(channel
), (rp
->mbox_dma
& 0x00000000ffffffc0));
3615 nw64(RBR_CFIG_A(channel
),
3616 ((u64
)rp
->rbr_table_size
<< RBR_CFIG_A_LEN_SHIFT
) |
3617 (rp
->rbr_dma
& (RBR_CFIG_A_STADDR_BASE
| RBR_CFIG_A_STADDR
)));
3618 err
= niu_compute_rbr_cfig_b(rp
, &val
);
3621 nw64(RBR_CFIG_B(channel
), val
);
3622 nw64(RCRCFIG_A(channel
),
3623 ((u64
)rp
->rcr_table_size
<< RCRCFIG_A_LEN_SHIFT
) |
3624 (rp
->rcr_dma
& (RCRCFIG_A_STADDR_BASE
| RCRCFIG_A_STADDR
)));
3625 nw64(RCRCFIG_B(channel
),
3626 ((u64
)rp
->rcr_pkt_threshold
<< RCRCFIG_B_PTHRES_SHIFT
) |
3628 ((u64
)rp
->rcr_timeout
<< RCRCFIG_B_TIMEOUT_SHIFT
));
3630 err
= niu_enable_rx_channel(np
, channel
, 1);
3634 nw64(RBR_KICK(channel
), rp
->rbr_index
);
3636 val
= nr64(RX_DMA_CTL_STAT(channel
));
3637 val
|= RX_DMA_CTL_STAT_RBR_EMPTY
;
3638 nw64(RX_DMA_CTL_STAT(channel
), val
);
3643 static int niu_init_rx_channels(struct niu
*np
)
3645 unsigned long flags
;
3646 u64 seed
= jiffies_64
;
3649 niu_lock_parent(np
, flags
);
3650 nw64(RX_DMA_CK_DIV
, np
->parent
->rxdma_clock_divider
);
3651 nw64(RED_RAN_INIT
, RED_RAN_INIT_OPMODE
| (seed
& RED_RAN_INIT_VAL
));
3652 niu_unlock_parent(np
, flags
);
3654 /* XXX RXDMA 32bit mode? XXX */
3656 niu_init_rdc_groups(np
);
3657 niu_init_drr_weight(np
);
3659 err
= niu_init_hostinfo(np
);
3663 for (i
= 0; i
< np
->num_rx_rings
; i
++) {
3664 struct rx_ring_info
*rp
= &np
->rx_rings
[i
];
3666 err
= niu_init_one_rx_channel(np
, rp
);
3674 static int niu_set_ip_frag_rule(struct niu
*np
)
3676 struct niu_parent
*parent
= np
->parent
;
3677 struct niu_classifier
*cp
= &np
->clas
;
3678 struct niu_tcam_entry
*tp
;
3681 /* XXX fix this allocation scheme XXX */
3682 index
= cp
->tcam_index
;
3683 tp
= &parent
->tcam
[index
];
3685 /* Note that the noport bit is the same in both ipv4 and
3686 * ipv6 format TCAM entries.
3688 memset(tp
, 0, sizeof(*tp
));
3689 tp
->key
[1] = TCAM_V4KEY1_NOPORT
;
3690 tp
->key_mask
[1] = TCAM_V4KEY1_NOPORT
;
3691 tp
->assoc_data
= (TCAM_ASSOCDATA_TRES_USE_OFFSET
|
3692 ((u64
)0 << TCAM_ASSOCDATA_OFFSET_SHIFT
));
3693 err
= tcam_write(np
, index
, tp
->key
, tp
->key_mask
);
3696 err
= tcam_assoc_write(np
, index
, tp
->assoc_data
);
3703 static int niu_init_classifier_hw(struct niu
*np
)
3705 struct niu_parent
*parent
= np
->parent
;
3706 struct niu_classifier
*cp
= &np
->clas
;
3709 nw64(H1POLY
, cp
->h1_init
);
3710 nw64(H2POLY
, cp
->h2_init
);
3712 err
= niu_init_hostinfo(np
);
3716 for (i
= 0; i
< ENET_VLAN_TBL_NUM_ENTRIES
; i
++) {
3717 struct niu_vlan_rdc
*vp
= &cp
->vlan_mappings
[i
];
3719 vlan_tbl_write(np
, i
, np
->port
,
3720 vp
->vlan_pref
, vp
->rdc_num
);
3723 for (i
= 0; i
< cp
->num_alt_mac_mappings
; i
++) {
3724 struct niu_altmac_rdc
*ap
= &cp
->alt_mac_mappings
[i
];
3726 err
= niu_set_alt_mac_rdc_table(np
, ap
->alt_mac_num
,
3727 ap
->rdc_num
, ap
->mac_pref
);
3732 for (i
= CLASS_CODE_USER_PROG1
; i
<= CLASS_CODE_SCTP_IPV6
; i
++) {
3733 int index
= i
- CLASS_CODE_USER_PROG1
;
3735 err
= niu_set_tcam_key(np
, i
, parent
->tcam_key
[index
]);
3738 err
= niu_set_flow_key(np
, i
, parent
->flow_key
[index
]);
3743 err
= niu_set_ip_frag_rule(np
);
3752 static int niu_zcp_write(struct niu
*np
, int index
, u64
*data
)
3754 nw64(ZCP_RAM_DATA0
, data
[0]);
3755 nw64(ZCP_RAM_DATA1
, data
[1]);
3756 nw64(ZCP_RAM_DATA2
, data
[2]);
3757 nw64(ZCP_RAM_DATA3
, data
[3]);
3758 nw64(ZCP_RAM_DATA4
, data
[4]);
3759 nw64(ZCP_RAM_BE
, ZCP_RAM_BE_VAL
);
3761 (ZCP_RAM_ACC_WRITE
|
3762 (0 << ZCP_RAM_ACC_ZFCID_SHIFT
) |
3763 (ZCP_RAM_SEL_CFIFO(np
->port
) << ZCP_RAM_ACC_RAM_SEL_SHIFT
)));
3765 return niu_wait_bits_clear(np
, ZCP_RAM_ACC
, ZCP_RAM_ACC_BUSY
,
3769 static int niu_zcp_read(struct niu
*np
, int index
, u64
*data
)
3773 err
= niu_wait_bits_clear(np
, ZCP_RAM_ACC
, ZCP_RAM_ACC_BUSY
,
3776 dev_err(np
->device
, PFX
"%s: ZCP read busy won't clear, "
3777 "ZCP_RAM_ACC[%llx]\n", np
->dev
->name
,
3778 (unsigned long long) nr64(ZCP_RAM_ACC
));
3784 (0 << ZCP_RAM_ACC_ZFCID_SHIFT
) |
3785 (ZCP_RAM_SEL_CFIFO(np
->port
) << ZCP_RAM_ACC_RAM_SEL_SHIFT
)));
3787 err
= niu_wait_bits_clear(np
, ZCP_RAM_ACC
, ZCP_RAM_ACC_BUSY
,
3790 dev_err(np
->device
, PFX
"%s: ZCP read busy2 won't clear, "
3791 "ZCP_RAM_ACC[%llx]\n", np
->dev
->name
,
3792 (unsigned long long) nr64(ZCP_RAM_ACC
));
3796 data
[0] = nr64(ZCP_RAM_DATA0
);
3797 data
[1] = nr64(ZCP_RAM_DATA1
);
3798 data
[2] = nr64(ZCP_RAM_DATA2
);
3799 data
[3] = nr64(ZCP_RAM_DATA3
);
3800 data
[4] = nr64(ZCP_RAM_DATA4
);
3805 static void niu_zcp_cfifo_reset(struct niu
*np
)
3807 u64 val
= nr64(RESET_CFIFO
);
3809 val
|= RESET_CFIFO_RST(np
->port
);
3810 nw64(RESET_CFIFO
, val
);
3813 val
&= ~RESET_CFIFO_RST(np
->port
);
3814 nw64(RESET_CFIFO
, val
);
3817 static int niu_init_zcp(struct niu
*np
)
3819 u64 data
[5], rbuf
[5];
3822 if (np
->parent
->plat_type
!= PLAT_TYPE_NIU
) {
3823 if (np
->port
== 0 || np
->port
== 1)
3824 max
= ATLAS_P0_P1_CFIFO_ENTRIES
;
3826 max
= ATLAS_P2_P3_CFIFO_ENTRIES
;
3828 max
= NIU_CFIFO_ENTRIES
;
3836 for (i
= 0; i
< max
; i
++) {
3837 err
= niu_zcp_write(np
, i
, data
);
3840 err
= niu_zcp_read(np
, i
, rbuf
);
3845 niu_zcp_cfifo_reset(np
);
3846 nw64(CFIFO_ECC(np
->port
), 0);
3847 nw64(ZCP_INT_STAT
, ZCP_INT_STAT_ALL
);
3848 (void) nr64(ZCP_INT_STAT
);
3849 nw64(ZCP_INT_MASK
, ZCP_INT_MASK_ALL
);
3854 static void niu_ipp_write(struct niu
*np
, int index
, u64
*data
)
3856 u64 val
= nr64_ipp(IPP_CFIG
);
3858 nw64_ipp(IPP_CFIG
, val
| IPP_CFIG_DFIFO_PIO_W
);
3859 nw64_ipp(IPP_DFIFO_WR_PTR
, index
);
3860 nw64_ipp(IPP_DFIFO_WR0
, data
[0]);
3861 nw64_ipp(IPP_DFIFO_WR1
, data
[1]);
3862 nw64_ipp(IPP_DFIFO_WR2
, data
[2]);
3863 nw64_ipp(IPP_DFIFO_WR3
, data
[3]);
3864 nw64_ipp(IPP_DFIFO_WR4
, data
[4]);
3865 nw64_ipp(IPP_CFIG
, val
& ~IPP_CFIG_DFIFO_PIO_W
);
3868 static void niu_ipp_read(struct niu
*np
, int index
, u64
*data
)
3870 nw64_ipp(IPP_DFIFO_RD_PTR
, index
);
3871 data
[0] = nr64_ipp(IPP_DFIFO_RD0
);
3872 data
[1] = nr64_ipp(IPP_DFIFO_RD1
);
3873 data
[2] = nr64_ipp(IPP_DFIFO_RD2
);
3874 data
[3] = nr64_ipp(IPP_DFIFO_RD3
);
3875 data
[4] = nr64_ipp(IPP_DFIFO_RD4
);
3878 static int niu_ipp_reset(struct niu
*np
)
3880 return niu_set_and_wait_clear_ipp(np
, IPP_CFIG
, IPP_CFIG_SOFT_RST
,
3881 1000, 100, "IPP_CFIG");
3884 static int niu_init_ipp(struct niu
*np
)
3886 u64 data
[5], rbuf
[5], val
;
3889 if (np
->parent
->plat_type
!= PLAT_TYPE_NIU
) {
3890 if (np
->port
== 0 || np
->port
== 1)
3891 max
= ATLAS_P0_P1_DFIFO_ENTRIES
;
3893 max
= ATLAS_P2_P3_DFIFO_ENTRIES
;
3895 max
= NIU_DFIFO_ENTRIES
;
3903 for (i
= 0; i
< max
; i
++) {
3904 niu_ipp_write(np
, i
, data
);
3905 niu_ipp_read(np
, i
, rbuf
);
3908 (void) nr64_ipp(IPP_INT_STAT
);
3909 (void) nr64_ipp(IPP_INT_STAT
);
3911 err
= niu_ipp_reset(np
);
3915 (void) nr64_ipp(IPP_PKT_DIS
);
3916 (void) nr64_ipp(IPP_BAD_CS_CNT
);
3917 (void) nr64_ipp(IPP_ECC
);
3919 (void) nr64_ipp(IPP_INT_STAT
);
3921 nw64_ipp(IPP_MSK
, ~IPP_MSK_ALL
);
3923 val
= nr64_ipp(IPP_CFIG
);
3924 val
&= ~IPP_CFIG_IP_MAX_PKT
;
3925 val
|= (IPP_CFIG_IPP_ENABLE
|
3926 IPP_CFIG_DFIFO_ECC_EN
|
3927 IPP_CFIG_DROP_BAD_CRC
|
3929 (0x1ffff << IPP_CFIG_IP_MAX_PKT_SHIFT
));
3930 nw64_ipp(IPP_CFIG
, val
);
3935 static void niu_handle_led(struct niu
*np
, int status
)
3938 val
= nr64_mac(XMAC_CONFIG
);
3940 if ((np
->flags
& NIU_FLAGS_10G
) != 0 &&
3941 (np
->flags
& NIU_FLAGS_FIBER
) != 0) {
3943 val
|= XMAC_CONFIG_LED_POLARITY
;
3944 val
&= ~XMAC_CONFIG_FORCE_LED_ON
;
3946 val
|= XMAC_CONFIG_FORCE_LED_ON
;
3947 val
&= ~XMAC_CONFIG_LED_POLARITY
;
3951 nw64_mac(XMAC_CONFIG
, val
);
3954 static void niu_init_xif_xmac(struct niu
*np
)
3956 struct niu_link_config
*lp
= &np
->link_config
;
3959 val
= nr64_mac(XMAC_CONFIG
);
3960 val
&= ~XMAC_CONFIG_SEL_POR_CLK_SRC
;
3962 val
|= XMAC_CONFIG_TX_OUTPUT_EN
;
3964 if (lp
->loopback_mode
== LOOPBACK_MAC
) {
3965 val
&= ~XMAC_CONFIG_SEL_POR_CLK_SRC
;
3966 val
|= XMAC_CONFIG_LOOPBACK
;
3968 val
&= ~XMAC_CONFIG_LOOPBACK
;
3971 if (np
->flags
& NIU_FLAGS_10G
) {
3972 val
&= ~XMAC_CONFIG_LFS_DISABLE
;
3974 val
|= XMAC_CONFIG_LFS_DISABLE
;
3975 if (!(np
->flags
& NIU_FLAGS_FIBER
))
3976 val
|= XMAC_CONFIG_1G_PCS_BYPASS
;
3978 val
&= ~XMAC_CONFIG_1G_PCS_BYPASS
;
3981 val
&= ~XMAC_CONFIG_10G_XPCS_BYPASS
;
3983 if (lp
->active_speed
== SPEED_100
)
3984 val
|= XMAC_CONFIG_SEL_CLK_25MHZ
;
3986 val
&= ~XMAC_CONFIG_SEL_CLK_25MHZ
;
3988 nw64_mac(XMAC_CONFIG
, val
);
3990 val
= nr64_mac(XMAC_CONFIG
);
3991 val
&= ~XMAC_CONFIG_MODE_MASK
;
3992 if (np
->flags
& NIU_FLAGS_10G
) {
3993 val
|= XMAC_CONFIG_MODE_XGMII
;
3995 if (lp
->active_speed
== SPEED_100
)
3996 val
|= XMAC_CONFIG_MODE_MII
;
3998 val
|= XMAC_CONFIG_MODE_GMII
;
4001 nw64_mac(XMAC_CONFIG
, val
);
4004 static void niu_init_xif_bmac(struct niu
*np
)
4006 struct niu_link_config
*lp
= &np
->link_config
;
4009 val
= BMAC_XIF_CONFIG_TX_OUTPUT_EN
;
4011 if (lp
->loopback_mode
== LOOPBACK_MAC
)
4012 val
|= BMAC_XIF_CONFIG_MII_LOOPBACK
;
4014 val
&= ~BMAC_XIF_CONFIG_MII_LOOPBACK
;
4016 if (lp
->active_speed
== SPEED_1000
)
4017 val
|= BMAC_XIF_CONFIG_GMII_MODE
;
4019 val
&= ~BMAC_XIF_CONFIG_GMII_MODE
;
4021 val
&= ~(BMAC_XIF_CONFIG_LINK_LED
|
4022 BMAC_XIF_CONFIG_LED_POLARITY
);
4024 if (!(np
->flags
& NIU_FLAGS_10G
) &&
4025 !(np
->flags
& NIU_FLAGS_FIBER
) &&
4026 lp
->active_speed
== SPEED_100
)
4027 val
|= BMAC_XIF_CONFIG_25MHZ_CLOCK
;
4029 val
&= ~BMAC_XIF_CONFIG_25MHZ_CLOCK
;
4031 nw64_mac(BMAC_XIF_CONFIG
, val
);
4034 static void niu_init_xif(struct niu
*np
)
4036 if (np
->flags
& NIU_FLAGS_XMAC
)
4037 niu_init_xif_xmac(np
);
4039 niu_init_xif_bmac(np
);
4042 static void niu_pcs_mii_reset(struct niu
*np
)
4044 u64 val
= nr64_pcs(PCS_MII_CTL
);
4045 val
|= PCS_MII_CTL_RST
;
4046 nw64_pcs(PCS_MII_CTL
, val
);
4049 static void niu_xpcs_reset(struct niu
*np
)
4051 u64 val
= nr64_xpcs(XPCS_CONTROL1
);
4052 val
|= XPCS_CONTROL1_RESET
;
4053 nw64_xpcs(XPCS_CONTROL1
, val
);
4056 static int niu_init_pcs(struct niu
*np
)
4058 struct niu_link_config
*lp
= &np
->link_config
;
4061 switch (np
->flags
& (NIU_FLAGS_10G
| NIU_FLAGS_FIBER
)) {
4062 case NIU_FLAGS_FIBER
:
4064 nw64_pcs(PCS_CONF
, PCS_CONF_MASK
| PCS_CONF_ENABLE
);
4065 nw64_pcs(PCS_DPATH_MODE
, 0);
4066 niu_pcs_mii_reset(np
);
4070 case NIU_FLAGS_10G
| NIU_FLAGS_FIBER
:
4071 if (!(np
->flags
& NIU_FLAGS_XMAC
))
4074 /* 10G copper or fiber */
4075 val
= nr64_mac(XMAC_CONFIG
);
4076 val
&= ~XMAC_CONFIG_10G_XPCS_BYPASS
;
4077 nw64_mac(XMAC_CONFIG
, val
);
4081 val
= nr64_xpcs(XPCS_CONTROL1
);
4082 if (lp
->loopback_mode
== LOOPBACK_PHY
)
4083 val
|= XPCS_CONTROL1_LOOPBACK
;
4085 val
&= ~XPCS_CONTROL1_LOOPBACK
;
4086 nw64_xpcs(XPCS_CONTROL1
, val
);
4088 nw64_xpcs(XPCS_DESKEW_ERR_CNT
, 0);
4089 (void) nr64_xpcs(XPCS_SYMERR_CNT01
);
4090 (void) nr64_xpcs(XPCS_SYMERR_CNT23
);
4095 nw64_pcs(PCS_DPATH_MODE
, PCS_DPATH_MODE_MII
);
4096 niu_pcs_mii_reset(np
);
4106 static int niu_reset_tx_xmac(struct niu
*np
)
4108 return niu_set_and_wait_clear_mac(np
, XTXMAC_SW_RST
,
4109 (XTXMAC_SW_RST_REG_RS
|
4110 XTXMAC_SW_RST_SOFT_RST
),
4111 1000, 100, "XTXMAC_SW_RST");
4114 static int niu_reset_tx_bmac(struct niu
*np
)
4118 nw64_mac(BTXMAC_SW_RST
, BTXMAC_SW_RST_RESET
);
4120 while (--limit
>= 0) {
4121 if (!(nr64_mac(BTXMAC_SW_RST
) & BTXMAC_SW_RST_RESET
))
4126 dev_err(np
->device
, PFX
"Port %u TX BMAC would not reset, "
4127 "BTXMAC_SW_RST[%llx]\n",
4129 (unsigned long long) nr64_mac(BTXMAC_SW_RST
));
4136 static int niu_reset_tx_mac(struct niu
*np
)
4138 if (np
->flags
& NIU_FLAGS_XMAC
)
4139 return niu_reset_tx_xmac(np
);
4141 return niu_reset_tx_bmac(np
);
4144 static void niu_init_tx_xmac(struct niu
*np
, u64 min
, u64 max
)
4148 val
= nr64_mac(XMAC_MIN
);
4149 val
&= ~(XMAC_MIN_TX_MIN_PKT_SIZE
|
4150 XMAC_MIN_RX_MIN_PKT_SIZE
);
4151 val
|= (min
<< XMAC_MIN_RX_MIN_PKT_SIZE_SHFT
);
4152 val
|= (min
<< XMAC_MIN_TX_MIN_PKT_SIZE_SHFT
);
4153 nw64_mac(XMAC_MIN
, val
);
4155 nw64_mac(XMAC_MAX
, max
);
4157 nw64_mac(XTXMAC_STAT_MSK
, ~(u64
)0);
4159 val
= nr64_mac(XMAC_IPG
);
4160 if (np
->flags
& NIU_FLAGS_10G
) {
4161 val
&= ~XMAC_IPG_IPG_XGMII
;
4162 val
|= (IPG_12_15_XGMII
<< XMAC_IPG_IPG_XGMII_SHIFT
);
4164 val
&= ~XMAC_IPG_IPG_MII_GMII
;
4165 val
|= (IPG_12_MII_GMII
<< XMAC_IPG_IPG_MII_GMII_SHIFT
);
4167 nw64_mac(XMAC_IPG
, val
);
4169 val
= nr64_mac(XMAC_CONFIG
);
4170 val
&= ~(XMAC_CONFIG_ALWAYS_NO_CRC
|
4171 XMAC_CONFIG_STRETCH_MODE
|
4172 XMAC_CONFIG_VAR_MIN_IPG_EN
|
4173 XMAC_CONFIG_TX_ENABLE
);
4174 nw64_mac(XMAC_CONFIG
, val
);
4176 nw64_mac(TXMAC_FRM_CNT
, 0);
4177 nw64_mac(TXMAC_BYTE_CNT
, 0);
4180 static void niu_init_tx_bmac(struct niu
*np
, u64 min
, u64 max
)
4184 nw64_mac(BMAC_MIN_FRAME
, min
);
4185 nw64_mac(BMAC_MAX_FRAME
, max
);
4187 nw64_mac(BTXMAC_STATUS_MASK
, ~(u64
)0);
4188 nw64_mac(BMAC_CTRL_TYPE
, 0x8808);
4189 nw64_mac(BMAC_PREAMBLE_SIZE
, 7);
4191 val
= nr64_mac(BTXMAC_CONFIG
);
4192 val
&= ~(BTXMAC_CONFIG_FCS_DISABLE
|
4193 BTXMAC_CONFIG_ENABLE
);
4194 nw64_mac(BTXMAC_CONFIG
, val
);
4197 static void niu_init_tx_mac(struct niu
*np
)
4202 if (np
->dev
->mtu
> ETH_DATA_LEN
)
4207 /* The XMAC_MIN register only accepts values for TX min which
4208 * have the low 3 bits cleared.
4210 BUILD_BUG_ON(min
& 0x7);
4212 if (np
->flags
& NIU_FLAGS_XMAC
)
4213 niu_init_tx_xmac(np
, min
, max
);
4215 niu_init_tx_bmac(np
, min
, max
);
4218 static int niu_reset_rx_xmac(struct niu
*np
)
4222 nw64_mac(XRXMAC_SW_RST
,
4223 XRXMAC_SW_RST_REG_RS
| XRXMAC_SW_RST_SOFT_RST
);
4225 while (--limit
>= 0) {
4226 if (!(nr64_mac(XRXMAC_SW_RST
) & (XRXMAC_SW_RST_REG_RS
|
4227 XRXMAC_SW_RST_SOFT_RST
)))
4232 dev_err(np
->device
, PFX
"Port %u RX XMAC would not reset, "
4233 "XRXMAC_SW_RST[%llx]\n",
4235 (unsigned long long) nr64_mac(XRXMAC_SW_RST
));
4242 static int niu_reset_rx_bmac(struct niu
*np
)
4246 nw64_mac(BRXMAC_SW_RST
, BRXMAC_SW_RST_RESET
);
4248 while (--limit
>= 0) {
4249 if (!(nr64_mac(BRXMAC_SW_RST
) & BRXMAC_SW_RST_RESET
))
4254 dev_err(np
->device
, PFX
"Port %u RX BMAC would not reset, "
4255 "BRXMAC_SW_RST[%llx]\n",
4257 (unsigned long long) nr64_mac(BRXMAC_SW_RST
));
4264 static int niu_reset_rx_mac(struct niu
*np
)
4266 if (np
->flags
& NIU_FLAGS_XMAC
)
4267 return niu_reset_rx_xmac(np
);
4269 return niu_reset_rx_bmac(np
);
4272 static void niu_init_rx_xmac(struct niu
*np
)
4274 struct niu_parent
*parent
= np
->parent
;
4275 struct niu_rdc_tables
*tp
= &parent
->rdc_group_cfg
[np
->port
];
4276 int first_rdc_table
= tp
->first_table_num
;
4280 nw64_mac(XMAC_ADD_FILT0
, 0);
4281 nw64_mac(XMAC_ADD_FILT1
, 0);
4282 nw64_mac(XMAC_ADD_FILT2
, 0);
4283 nw64_mac(XMAC_ADD_FILT12_MASK
, 0);
4284 nw64_mac(XMAC_ADD_FILT00_MASK
, 0);
4285 for (i
= 0; i
< MAC_NUM_HASH
; i
++)
4286 nw64_mac(XMAC_HASH_TBL(i
), 0);
4287 nw64_mac(XRXMAC_STAT_MSK
, ~(u64
)0);
4288 niu_set_primary_mac_rdc_table(np
, first_rdc_table
, 1);
4289 niu_set_multicast_mac_rdc_table(np
, first_rdc_table
, 1);
4291 val
= nr64_mac(XMAC_CONFIG
);
4292 val
&= ~(XMAC_CONFIG_RX_MAC_ENABLE
|
4293 XMAC_CONFIG_PROMISCUOUS
|
4294 XMAC_CONFIG_PROMISC_GROUP
|
4295 XMAC_CONFIG_ERR_CHK_DIS
|
4296 XMAC_CONFIG_RX_CRC_CHK_DIS
|
4297 XMAC_CONFIG_RESERVED_MULTICAST
|
4298 XMAC_CONFIG_RX_CODEV_CHK_DIS
|
4299 XMAC_CONFIG_ADDR_FILTER_EN
|
4300 XMAC_CONFIG_RCV_PAUSE_ENABLE
|
4301 XMAC_CONFIG_STRIP_CRC
|
4302 XMAC_CONFIG_PASS_FLOW_CTRL
|
4303 XMAC_CONFIG_MAC2IPP_PKT_CNT_EN
);
4304 val
|= (XMAC_CONFIG_HASH_FILTER_EN
);
4305 nw64_mac(XMAC_CONFIG
, val
);
4307 nw64_mac(RXMAC_BT_CNT
, 0);
4308 nw64_mac(RXMAC_BC_FRM_CNT
, 0);
4309 nw64_mac(RXMAC_MC_FRM_CNT
, 0);
4310 nw64_mac(RXMAC_FRAG_CNT
, 0);
4311 nw64_mac(RXMAC_HIST_CNT1
, 0);
4312 nw64_mac(RXMAC_HIST_CNT2
, 0);
4313 nw64_mac(RXMAC_HIST_CNT3
, 0);
4314 nw64_mac(RXMAC_HIST_CNT4
, 0);
4315 nw64_mac(RXMAC_HIST_CNT5
, 0);
4316 nw64_mac(RXMAC_HIST_CNT6
, 0);
4317 nw64_mac(RXMAC_HIST_CNT7
, 0);
4318 nw64_mac(RXMAC_MPSZER_CNT
, 0);
4319 nw64_mac(RXMAC_CRC_ER_CNT
, 0);
4320 nw64_mac(RXMAC_CD_VIO_CNT
, 0);
4321 nw64_mac(LINK_FAULT_CNT
, 0);
4324 static void niu_init_rx_bmac(struct niu
*np
)
4326 struct niu_parent
*parent
= np
->parent
;
4327 struct niu_rdc_tables
*tp
= &parent
->rdc_group_cfg
[np
->port
];
4328 int first_rdc_table
= tp
->first_table_num
;
4332 nw64_mac(BMAC_ADD_FILT0
, 0);
4333 nw64_mac(BMAC_ADD_FILT1
, 0);
4334 nw64_mac(BMAC_ADD_FILT2
, 0);
4335 nw64_mac(BMAC_ADD_FILT12_MASK
, 0);
4336 nw64_mac(BMAC_ADD_FILT00_MASK
, 0);
4337 for (i
= 0; i
< MAC_NUM_HASH
; i
++)
4338 nw64_mac(BMAC_HASH_TBL(i
), 0);
4339 niu_set_primary_mac_rdc_table(np
, first_rdc_table
, 1);
4340 niu_set_multicast_mac_rdc_table(np
, first_rdc_table
, 1);
4341 nw64_mac(BRXMAC_STATUS_MASK
, ~(u64
)0);
4343 val
= nr64_mac(BRXMAC_CONFIG
);
4344 val
&= ~(BRXMAC_CONFIG_ENABLE
|
4345 BRXMAC_CONFIG_STRIP_PAD
|
4346 BRXMAC_CONFIG_STRIP_FCS
|
4347 BRXMAC_CONFIG_PROMISC
|
4348 BRXMAC_CONFIG_PROMISC_GRP
|
4349 BRXMAC_CONFIG_ADDR_FILT_EN
|
4350 BRXMAC_CONFIG_DISCARD_DIS
);
4351 val
|= (BRXMAC_CONFIG_HASH_FILT_EN
);
4352 nw64_mac(BRXMAC_CONFIG
, val
);
4354 val
= nr64_mac(BMAC_ADDR_CMPEN
);
4355 val
|= BMAC_ADDR_CMPEN_EN0
;
4356 nw64_mac(BMAC_ADDR_CMPEN
, val
);
4359 static void niu_init_rx_mac(struct niu
*np
)
4361 niu_set_primary_mac(np
, np
->dev
->dev_addr
);
4363 if (np
->flags
& NIU_FLAGS_XMAC
)
4364 niu_init_rx_xmac(np
);
4366 niu_init_rx_bmac(np
);
4369 static void niu_enable_tx_xmac(struct niu
*np
, int on
)
4371 u64 val
= nr64_mac(XMAC_CONFIG
);
4374 val
|= XMAC_CONFIG_TX_ENABLE
;
4376 val
&= ~XMAC_CONFIG_TX_ENABLE
;
4377 nw64_mac(XMAC_CONFIG
, val
);
4380 static void niu_enable_tx_bmac(struct niu
*np
, int on
)
4382 u64 val
= nr64_mac(BTXMAC_CONFIG
);
4385 val
|= BTXMAC_CONFIG_ENABLE
;
4387 val
&= ~BTXMAC_CONFIG_ENABLE
;
4388 nw64_mac(BTXMAC_CONFIG
, val
);
4391 static void niu_enable_tx_mac(struct niu
*np
, int on
)
4393 if (np
->flags
& NIU_FLAGS_XMAC
)
4394 niu_enable_tx_xmac(np
, on
);
4396 niu_enable_tx_bmac(np
, on
);
4399 static void niu_enable_rx_xmac(struct niu
*np
, int on
)
4401 u64 val
= nr64_mac(XMAC_CONFIG
);
4403 val
&= ~(XMAC_CONFIG_HASH_FILTER_EN
|
4404 XMAC_CONFIG_PROMISCUOUS
);
4406 if (np
->flags
& NIU_FLAGS_MCAST
)
4407 val
|= XMAC_CONFIG_HASH_FILTER_EN
;
4408 if (np
->flags
& NIU_FLAGS_PROMISC
)
4409 val
|= XMAC_CONFIG_PROMISCUOUS
;
4412 val
|= XMAC_CONFIG_RX_MAC_ENABLE
;
4414 val
&= ~XMAC_CONFIG_RX_MAC_ENABLE
;
4415 nw64_mac(XMAC_CONFIG
, val
);
4418 static void niu_enable_rx_bmac(struct niu
*np
, int on
)
4420 u64 val
= nr64_mac(BRXMAC_CONFIG
);
4422 val
&= ~(BRXMAC_CONFIG_HASH_FILT_EN
|
4423 BRXMAC_CONFIG_PROMISC
);
4425 if (np
->flags
& NIU_FLAGS_MCAST
)
4426 val
|= BRXMAC_CONFIG_HASH_FILT_EN
;
4427 if (np
->flags
& NIU_FLAGS_PROMISC
)
4428 val
|= BRXMAC_CONFIG_PROMISC
;
4431 val
|= BRXMAC_CONFIG_ENABLE
;
4433 val
&= ~BRXMAC_CONFIG_ENABLE
;
4434 nw64_mac(BRXMAC_CONFIG
, val
);
4437 static void niu_enable_rx_mac(struct niu
*np
, int on
)
4439 if (np
->flags
& NIU_FLAGS_XMAC
)
4440 niu_enable_rx_xmac(np
, on
);
4442 niu_enable_rx_bmac(np
, on
);
4445 static int niu_init_mac(struct niu
*np
)
4450 err
= niu_init_pcs(np
);
4454 err
= niu_reset_tx_mac(np
);
4457 niu_init_tx_mac(np
);
4458 err
= niu_reset_rx_mac(np
);
4461 niu_init_rx_mac(np
);
4463 /* This looks hookey but the RX MAC reset we just did will
4464 * undo some of the state we setup in niu_init_tx_mac() so we
4465 * have to call it again. In particular, the RX MAC reset will
4466 * set the XMAC_MAX register back to it's default value.
4468 niu_init_tx_mac(np
);
4469 niu_enable_tx_mac(np
, 1);
4471 niu_enable_rx_mac(np
, 1);
4476 static void niu_stop_one_tx_channel(struct niu
*np
, struct tx_ring_info
*rp
)
4478 (void) niu_tx_channel_stop(np
, rp
->tx_channel
);
4481 static void niu_stop_tx_channels(struct niu
*np
)
4485 for (i
= 0; i
< np
->num_tx_rings
; i
++) {
4486 struct tx_ring_info
*rp
= &np
->tx_rings
[i
];
4488 niu_stop_one_tx_channel(np
, rp
);
4492 static void niu_reset_one_tx_channel(struct niu
*np
, struct tx_ring_info
*rp
)
4494 (void) niu_tx_channel_reset(np
, rp
->tx_channel
);
4497 static void niu_reset_tx_channels(struct niu
*np
)
4501 for (i
= 0; i
< np
->num_tx_rings
; i
++) {
4502 struct tx_ring_info
*rp
= &np
->tx_rings
[i
];
4504 niu_reset_one_tx_channel(np
, rp
);
4508 static void niu_stop_one_rx_channel(struct niu
*np
, struct rx_ring_info
*rp
)
4510 (void) niu_enable_rx_channel(np
, rp
->rx_channel
, 0);
4513 static void niu_stop_rx_channels(struct niu
*np
)
4517 for (i
= 0; i
< np
->num_rx_rings
; i
++) {
4518 struct rx_ring_info
*rp
= &np
->rx_rings
[i
];
4520 niu_stop_one_rx_channel(np
, rp
);
4524 static void niu_reset_one_rx_channel(struct niu
*np
, struct rx_ring_info
*rp
)
4526 int channel
= rp
->rx_channel
;
4528 (void) niu_rx_channel_reset(np
, channel
);
4529 nw64(RX_DMA_ENT_MSK(channel
), RX_DMA_ENT_MSK_ALL
);
4530 nw64(RX_DMA_CTL_STAT(channel
), 0);
4531 (void) niu_enable_rx_channel(np
, channel
, 0);
4534 static void niu_reset_rx_channels(struct niu
*np
)
4538 for (i
= 0; i
< np
->num_rx_rings
; i
++) {
4539 struct rx_ring_info
*rp
= &np
->rx_rings
[i
];
4541 niu_reset_one_rx_channel(np
, rp
);
4545 static void niu_disable_ipp(struct niu
*np
)
4550 rd
= nr64_ipp(IPP_DFIFO_RD_PTR
);
4551 wr
= nr64_ipp(IPP_DFIFO_WR_PTR
);
4553 while (--limit
>= 0 && (rd
!= wr
)) {
4554 rd
= nr64_ipp(IPP_DFIFO_RD_PTR
);
4555 wr
= nr64_ipp(IPP_DFIFO_WR_PTR
);
4558 (rd
!= 0 && wr
!= 1)) {
4559 dev_err(np
->device
, PFX
"%s: IPP would not quiesce, "
4560 "rd_ptr[%llx] wr_ptr[%llx]\n",
4562 (unsigned long long) nr64_ipp(IPP_DFIFO_RD_PTR
),
4563 (unsigned long long) nr64_ipp(IPP_DFIFO_WR_PTR
));
4566 val
= nr64_ipp(IPP_CFIG
);
4567 val
&= ~(IPP_CFIG_IPP_ENABLE
|
4568 IPP_CFIG_DFIFO_ECC_EN
|
4569 IPP_CFIG_DROP_BAD_CRC
|
4571 nw64_ipp(IPP_CFIG
, val
);
4573 (void) niu_ipp_reset(np
);
4576 static int niu_init_hw(struct niu
*np
)
4580 niudbg(IFUP
, "%s: Initialize TXC\n", np
->dev
->name
);
4581 niu_txc_enable_port(np
, 1);
4582 niu_txc_port_dma_enable(np
, 1);
4583 niu_txc_set_imask(np
, 0);
4585 niudbg(IFUP
, "%s: Initialize TX channels\n", np
->dev
->name
);
4586 for (i
= 0; i
< np
->num_tx_rings
; i
++) {
4587 struct tx_ring_info
*rp
= &np
->tx_rings
[i
];
4589 err
= niu_init_one_tx_channel(np
, rp
);
4594 niudbg(IFUP
, "%s: Initialize RX channels\n", np
->dev
->name
);
4595 err
= niu_init_rx_channels(np
);
4597 goto out_uninit_tx_channels
;
4599 niudbg(IFUP
, "%s: Initialize classifier\n", np
->dev
->name
);
4600 err
= niu_init_classifier_hw(np
);
4602 goto out_uninit_rx_channels
;
4604 niudbg(IFUP
, "%s: Initialize ZCP\n", np
->dev
->name
);
4605 err
= niu_init_zcp(np
);
4607 goto out_uninit_rx_channels
;
4609 niudbg(IFUP
, "%s: Initialize IPP\n", np
->dev
->name
);
4610 err
= niu_init_ipp(np
);
4612 goto out_uninit_rx_channels
;
4614 niudbg(IFUP
, "%s: Initialize MAC\n", np
->dev
->name
);
4615 err
= niu_init_mac(np
);
4617 goto out_uninit_ipp
;
4622 niudbg(IFUP
, "%s: Uninit IPP\n", np
->dev
->name
);
4623 niu_disable_ipp(np
);
4625 out_uninit_rx_channels
:
4626 niudbg(IFUP
, "%s: Uninit RX channels\n", np
->dev
->name
);
4627 niu_stop_rx_channels(np
);
4628 niu_reset_rx_channels(np
);
4630 out_uninit_tx_channels
:
4631 niudbg(IFUP
, "%s: Uninit TX channels\n", np
->dev
->name
);
4632 niu_stop_tx_channels(np
);
4633 niu_reset_tx_channels(np
);
4638 static void niu_stop_hw(struct niu
*np
)
4640 niudbg(IFDOWN
, "%s: Disable interrupts\n", np
->dev
->name
);
4641 niu_enable_interrupts(np
, 0);
4643 niudbg(IFDOWN
, "%s: Disable RX MAC\n", np
->dev
->name
);
4644 niu_enable_rx_mac(np
, 0);
4646 niudbg(IFDOWN
, "%s: Disable IPP\n", np
->dev
->name
);
4647 niu_disable_ipp(np
);
4649 niudbg(IFDOWN
, "%s: Stop TX channels\n", np
->dev
->name
);
4650 niu_stop_tx_channels(np
);
4652 niudbg(IFDOWN
, "%s: Stop RX channels\n", np
->dev
->name
);
4653 niu_stop_rx_channels(np
);
4655 niudbg(IFDOWN
, "%s: Reset TX channels\n", np
->dev
->name
);
4656 niu_reset_tx_channels(np
);
4658 niudbg(IFDOWN
, "%s: Reset RX channels\n", np
->dev
->name
);
4659 niu_reset_rx_channels(np
);
4662 static int niu_request_irq(struct niu
*np
)
4667 for (i
= 0; i
< np
->num_ldg
; i
++) {
4668 struct niu_ldg
*lp
= &np
->ldg
[i
];
4670 err
= request_irq(lp
->irq
, niu_interrupt
,
4671 IRQF_SHARED
| IRQF_SAMPLE_RANDOM
,
4681 for (j
= 0; j
< i
; j
++) {
4682 struct niu_ldg
*lp
= &np
->ldg
[j
];
4684 free_irq(lp
->irq
, lp
);
4689 static void niu_free_irq(struct niu
*np
)
4693 for (i
= 0; i
< np
->num_ldg
; i
++) {
4694 struct niu_ldg
*lp
= &np
->ldg
[i
];
4696 free_irq(lp
->irq
, lp
);
4700 static void niu_enable_napi(struct niu
*np
)
4704 for (i
= 0; i
< np
->num_ldg
; i
++)
4705 napi_enable(&np
->ldg
[i
].napi
);
4708 static void niu_disable_napi(struct niu
*np
)
4712 for (i
= 0; i
< np
->num_ldg
; i
++)
4713 napi_disable(&np
->ldg
[i
].napi
);
4716 static int niu_open(struct net_device
*dev
)
4718 struct niu
*np
= netdev_priv(dev
);
4721 netif_carrier_off(dev
);
4723 err
= niu_alloc_channels(np
);
4727 err
= niu_enable_interrupts(np
, 0);
4729 goto out_free_channels
;
4731 err
= niu_request_irq(np
);
4733 goto out_free_channels
;
4735 niu_enable_napi(np
);
4737 spin_lock_irq(&np
->lock
);
4739 err
= niu_init_hw(np
);
4741 init_timer(&np
->timer
);
4742 np
->timer
.expires
= jiffies
+ HZ
;
4743 np
->timer
.data
= (unsigned long) np
;
4744 np
->timer
.function
= niu_timer
;
4746 err
= niu_enable_interrupts(np
, 1);
4751 spin_unlock_irq(&np
->lock
);
4754 niu_disable_napi(np
);
4758 netif_start_queue(dev
);
4760 if (np
->link_config
.loopback_mode
!= LOOPBACK_DISABLED
)
4761 netif_carrier_on(dev
);
4763 add_timer(&np
->timer
);
4771 niu_free_channels(np
);
4777 static void niu_full_shutdown(struct niu
*np
, struct net_device
*dev
)
4779 cancel_work_sync(&np
->reset_task
);
4781 niu_disable_napi(np
);
4782 netif_stop_queue(dev
);
4784 del_timer_sync(&np
->timer
);
4786 spin_lock_irq(&np
->lock
);
4790 spin_unlock_irq(&np
->lock
);
4793 static int niu_close(struct net_device
*dev
)
4795 struct niu
*np
= netdev_priv(dev
);
4797 niu_full_shutdown(np
, dev
);
4801 niu_free_channels(np
);
4803 niu_handle_led(np
, 0);
4808 static void niu_sync_xmac_stats(struct niu
*np
)
4810 struct niu_xmac_stats
*mp
= &np
->mac_stats
.xmac
;
4812 mp
->tx_frames
+= nr64_mac(TXMAC_FRM_CNT
);
4813 mp
->tx_bytes
+= nr64_mac(TXMAC_BYTE_CNT
);
4815 mp
->rx_link_faults
+= nr64_mac(LINK_FAULT_CNT
);
4816 mp
->rx_align_errors
+= nr64_mac(RXMAC_ALIGN_ERR_CNT
);
4817 mp
->rx_frags
+= nr64_mac(RXMAC_FRAG_CNT
);
4818 mp
->rx_mcasts
+= nr64_mac(RXMAC_MC_FRM_CNT
);
4819 mp
->rx_bcasts
+= nr64_mac(RXMAC_BC_FRM_CNT
);
4820 mp
->rx_hist_cnt1
+= nr64_mac(RXMAC_HIST_CNT1
);
4821 mp
->rx_hist_cnt2
+= nr64_mac(RXMAC_HIST_CNT2
);
4822 mp
->rx_hist_cnt3
+= nr64_mac(RXMAC_HIST_CNT3
);
4823 mp
->rx_hist_cnt4
+= nr64_mac(RXMAC_HIST_CNT4
);
4824 mp
->rx_hist_cnt5
+= nr64_mac(RXMAC_HIST_CNT5
);
4825 mp
->rx_hist_cnt6
+= nr64_mac(RXMAC_HIST_CNT6
);
4826 mp
->rx_hist_cnt7
+= nr64_mac(RXMAC_HIST_CNT7
);
4827 mp
->rx_octets
+= nr64_mac(RXMAC_BT_CNT
);
4828 mp
->rx_code_violations
+= nr64_mac(RXMAC_CD_VIO_CNT
);
4829 mp
->rx_len_errors
+= nr64_mac(RXMAC_MPSZER_CNT
);
4830 mp
->rx_crc_errors
+= nr64_mac(RXMAC_CRC_ER_CNT
);
4833 static void niu_sync_bmac_stats(struct niu
*np
)
4835 struct niu_bmac_stats
*mp
= &np
->mac_stats
.bmac
;
4837 mp
->tx_bytes
+= nr64_mac(BTXMAC_BYTE_CNT
);
4838 mp
->tx_frames
+= nr64_mac(BTXMAC_FRM_CNT
);
4840 mp
->rx_frames
+= nr64_mac(BRXMAC_FRAME_CNT
);
4841 mp
->rx_align_errors
+= nr64_mac(BRXMAC_ALIGN_ERR_CNT
);
4842 mp
->rx_crc_errors
+= nr64_mac(BRXMAC_ALIGN_ERR_CNT
);
4843 mp
->rx_len_errors
+= nr64_mac(BRXMAC_CODE_VIOL_ERR_CNT
);
4846 static void niu_sync_mac_stats(struct niu
*np
)
4848 if (np
->flags
& NIU_FLAGS_XMAC
)
4849 niu_sync_xmac_stats(np
);
4851 niu_sync_bmac_stats(np
);
4854 static void niu_get_rx_stats(struct niu
*np
)
4856 unsigned long pkts
, dropped
, errors
, bytes
;
4859 pkts
= dropped
= errors
= bytes
= 0;
4860 for (i
= 0; i
< np
->num_rx_rings
; i
++) {
4861 struct rx_ring_info
*rp
= &np
->rx_rings
[i
];
4863 pkts
+= rp
->rx_packets
;
4864 bytes
+= rp
->rx_bytes
;
4865 dropped
+= rp
->rx_dropped
;
4866 errors
+= rp
->rx_errors
;
4868 np
->net_stats
.rx_packets
= pkts
;
4869 np
->net_stats
.rx_bytes
= bytes
;
4870 np
->net_stats
.rx_dropped
= dropped
;
4871 np
->net_stats
.rx_errors
= errors
;
4874 static void niu_get_tx_stats(struct niu
*np
)
4876 unsigned long pkts
, errors
, bytes
;
4879 pkts
= errors
= bytes
= 0;
4880 for (i
= 0; i
< np
->num_tx_rings
; i
++) {
4881 struct tx_ring_info
*rp
= &np
->tx_rings
[i
];
4883 pkts
+= rp
->tx_packets
;
4884 bytes
+= rp
->tx_bytes
;
4885 errors
+= rp
->tx_errors
;
4887 np
->net_stats
.tx_packets
= pkts
;
4888 np
->net_stats
.tx_bytes
= bytes
;
4889 np
->net_stats
.tx_errors
= errors
;
4892 static struct net_device_stats
*niu_get_stats(struct net_device
*dev
)
4894 struct niu
*np
= netdev_priv(dev
);
4896 niu_get_rx_stats(np
);
4897 niu_get_tx_stats(np
);
4899 return &np
->net_stats
;
4902 static void niu_load_hash_xmac(struct niu
*np
, u16
*hash
)
4906 for (i
= 0; i
< 16; i
++)
4907 nw64_mac(XMAC_HASH_TBL(i
), hash
[i
]);
4910 static void niu_load_hash_bmac(struct niu
*np
, u16
*hash
)
4914 for (i
= 0; i
< 16; i
++)
4915 nw64_mac(BMAC_HASH_TBL(i
), hash
[i
]);
4918 static void niu_load_hash(struct niu
*np
, u16
*hash
)
4920 if (np
->flags
& NIU_FLAGS_XMAC
)
4921 niu_load_hash_xmac(np
, hash
);
4923 niu_load_hash_bmac(np
, hash
);
4926 static void niu_set_rx_mode(struct net_device
*dev
)
4928 struct niu
*np
= netdev_priv(dev
);
4929 int i
, alt_cnt
, err
;
4930 struct dev_addr_list
*addr
;
4931 unsigned long flags
;
4932 u16 hash
[16] = { 0, };
4934 spin_lock_irqsave(&np
->lock
, flags
);
4935 niu_enable_rx_mac(np
, 0);
4937 np
->flags
&= ~(NIU_FLAGS_MCAST
| NIU_FLAGS_PROMISC
);
4938 if (dev
->flags
& IFF_PROMISC
)
4939 np
->flags
|= NIU_FLAGS_PROMISC
;
4940 if ((dev
->flags
& IFF_ALLMULTI
) || (dev
->mc_count
> 0))
4941 np
->flags
|= NIU_FLAGS_MCAST
;
4943 alt_cnt
= dev
->uc_count
;
4944 if (alt_cnt
> niu_num_alt_addr(np
)) {
4946 np
->flags
|= NIU_FLAGS_PROMISC
;
4952 for (addr
= dev
->uc_list
; addr
; addr
= addr
->next
) {
4953 err
= niu_set_alt_mac(np
, index
,
4956 printk(KERN_WARNING PFX
"%s: Error %d "
4957 "adding alt mac %d\n",
4958 dev
->name
, err
, index
);
4959 err
= niu_enable_alt_mac(np
, index
, 1);
4961 printk(KERN_WARNING PFX
"%s: Error %d "
4962 "enabling alt mac %d\n",
4963 dev
->name
, err
, index
);
4968 for (i
= 0; i
< niu_num_alt_addr(np
); i
++) {
4969 err
= niu_enable_alt_mac(np
, i
, 0);
4971 printk(KERN_WARNING PFX
"%s: Error %d "
4972 "disabling alt mac %d\n",
4976 if (dev
->flags
& IFF_ALLMULTI
) {
4977 for (i
= 0; i
< 16; i
++)
4979 } else if (dev
->mc_count
> 0) {
4980 for (addr
= dev
->mc_list
; addr
; addr
= addr
->next
) {
4981 u32 crc
= ether_crc_le(ETH_ALEN
, addr
->da_addr
);
4984 hash
[crc
>> 4] |= (1 << (15 - (crc
& 0xf)));
4988 if (np
->flags
& NIU_FLAGS_MCAST
)
4989 niu_load_hash(np
, hash
);
4991 niu_enable_rx_mac(np
, 1);
4992 spin_unlock_irqrestore(&np
->lock
, flags
);
4995 static int niu_set_mac_addr(struct net_device
*dev
, void *p
)
4997 struct niu
*np
= netdev_priv(dev
);
4998 struct sockaddr
*addr
= p
;
4999 unsigned long flags
;
5001 if (!is_valid_ether_addr(addr
->sa_data
))
5004 memcpy(dev
->dev_addr
, addr
->sa_data
, ETH_ALEN
);
5006 if (!netif_running(dev
))
5009 spin_lock_irqsave(&np
->lock
, flags
);
5010 niu_enable_rx_mac(np
, 0);
5011 niu_set_primary_mac(np
, dev
->dev_addr
);
5012 niu_enable_rx_mac(np
, 1);
5013 spin_unlock_irqrestore(&np
->lock
, flags
);
5018 static int niu_ioctl(struct net_device
*dev
, struct ifreq
*ifr
, int cmd
)
5023 static void niu_netif_stop(struct niu
*np
)
5025 np
->dev
->trans_start
= jiffies
; /* prevent tx timeout */
5027 niu_disable_napi(np
);
5029 netif_tx_disable(np
->dev
);
5032 static void niu_netif_start(struct niu
*np
)
5034 /* NOTE: unconditional netif_wake_queue is only appropriate
5035 * so long as all callers are assured to have free tx slots
5036 * (such as after niu_init_hw).
5038 netif_wake_queue(np
->dev
);
5040 niu_enable_napi(np
);
5042 niu_enable_interrupts(np
, 1);
5045 static void niu_reset_task(struct work_struct
*work
)
5047 struct niu
*np
= container_of(work
, struct niu
, reset_task
);
5048 unsigned long flags
;
5051 spin_lock_irqsave(&np
->lock
, flags
);
5052 if (!netif_running(np
->dev
)) {
5053 spin_unlock_irqrestore(&np
->lock
, flags
);
5057 spin_unlock_irqrestore(&np
->lock
, flags
);
5059 del_timer_sync(&np
->timer
);
5063 spin_lock_irqsave(&np
->lock
, flags
);
5067 err
= niu_init_hw(np
);
5069 np
->timer
.expires
= jiffies
+ HZ
;
5070 add_timer(&np
->timer
);
5071 niu_netif_start(np
);
5074 spin_unlock_irqrestore(&np
->lock
, flags
);
5077 static void niu_tx_timeout(struct net_device
*dev
)
5079 struct niu
*np
= netdev_priv(dev
);
5081 dev_err(np
->device
, PFX
"%s: Transmit timed out, resetting\n",
5084 schedule_work(&np
->reset_task
);
5087 static void niu_set_txd(struct tx_ring_info
*rp
, int index
,
5088 u64 mapping
, u64 len
, u64 mark
,
5091 __le64
*desc
= &rp
->descr
[index
];
5093 *desc
= cpu_to_le64(mark
|
5094 (n_frags
<< TX_DESC_NUM_PTR_SHIFT
) |
5095 (len
<< TX_DESC_TR_LEN_SHIFT
) |
5096 (mapping
& TX_DESC_SAD
));
5099 static u64
niu_compute_tx_flags(struct sk_buff
*skb
, struct ethhdr
*ehdr
,
5100 u64 pad_bytes
, u64 len
)
5102 u16 eth_proto
, eth_proto_inner
;
5103 u64 csum_bits
, l3off
, ihl
, ret
;
5107 eth_proto
= be16_to_cpu(ehdr
->h_proto
);
5108 eth_proto_inner
= eth_proto
;
5109 if (eth_proto
== ETH_P_8021Q
) {
5110 struct vlan_ethhdr
*vp
= (struct vlan_ethhdr
*) ehdr
;
5111 __be16 val
= vp
->h_vlan_encapsulated_proto
;
5113 eth_proto_inner
= be16_to_cpu(val
);
5117 switch (skb
->protocol
) {
5118 case __constant_htons(ETH_P_IP
):
5119 ip_proto
= ip_hdr(skb
)->protocol
;
5120 ihl
= ip_hdr(skb
)->ihl
;
5122 case __constant_htons(ETH_P_IPV6
):
5123 ip_proto
= ipv6_hdr(skb
)->nexthdr
;
5132 csum_bits
= TXHDR_CSUM_NONE
;
5133 if (skb
->ip_summed
== CHECKSUM_PARTIAL
) {
5136 csum_bits
= (ip_proto
== IPPROTO_TCP
?
5138 (ip_proto
== IPPROTO_UDP
?
5139 TXHDR_CSUM_UDP
: TXHDR_CSUM_SCTP
));
5141 start
= skb_transport_offset(skb
) -
5142 (pad_bytes
+ sizeof(struct tx_pkt_hdr
));
5143 stuff
= start
+ skb
->csum_offset
;
5145 csum_bits
|= (start
/ 2) << TXHDR_L4START_SHIFT
;
5146 csum_bits
|= (stuff
/ 2) << TXHDR_L4STUFF_SHIFT
;
5149 l3off
= skb_network_offset(skb
) -
5150 (pad_bytes
+ sizeof(struct tx_pkt_hdr
));
5152 ret
= (((pad_bytes
/ 2) << TXHDR_PAD_SHIFT
) |
5153 (len
<< TXHDR_LEN_SHIFT
) |
5154 ((l3off
/ 2) << TXHDR_L3START_SHIFT
) |
5155 (ihl
<< TXHDR_IHL_SHIFT
) |
5156 ((eth_proto_inner
< 1536) ? TXHDR_LLC
: 0) |
5157 ((eth_proto
== ETH_P_8021Q
) ? TXHDR_VLAN
: 0) |
5158 (ipv6
? TXHDR_IP_VER
: 0) |
5164 static struct tx_ring_info
*tx_ring_select(struct niu
*np
, struct sk_buff
*skb
)
5166 return &np
->tx_rings
[0];
5169 static int niu_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
5171 struct niu
*np
= netdev_priv(dev
);
5172 unsigned long align
, headroom
;
5173 struct tx_ring_info
*rp
;
5174 struct tx_pkt_hdr
*tp
;
5175 unsigned int len
, nfg
;
5176 struct ethhdr
*ehdr
;
5180 rp
= tx_ring_select(np
, skb
);
5182 if (niu_tx_avail(rp
) <= (skb_shinfo(skb
)->nr_frags
+ 1)) {
5183 netif_stop_queue(dev
);
5184 dev_err(np
->device
, PFX
"%s: BUG! Tx ring full when "
5185 "queue awake!\n", dev
->name
);
5187 return NETDEV_TX_BUSY
;
5190 if (skb
->len
< ETH_ZLEN
) {
5191 unsigned int pad_bytes
= ETH_ZLEN
- skb
->len
;
5193 if (skb_pad(skb
, pad_bytes
))
5195 skb_put(skb
, pad_bytes
);
5198 len
= sizeof(struct tx_pkt_hdr
) + 15;
5199 if (skb_headroom(skb
) < len
) {
5200 struct sk_buff
*skb_new
;
5202 skb_new
= skb_realloc_headroom(skb
, len
);
5211 align
= ((unsigned long) skb
->data
& (16 - 1));
5212 headroom
= align
+ sizeof(struct tx_pkt_hdr
);
5214 ehdr
= (struct ethhdr
*) skb
->data
;
5215 tp
= (struct tx_pkt_hdr
*) skb_push(skb
, headroom
);
5217 len
= skb
->len
- sizeof(struct tx_pkt_hdr
);
5218 tp
->flags
= cpu_to_le64(niu_compute_tx_flags(skb
, ehdr
, align
, len
));
5221 len
= skb_headlen(skb
);
5222 mapping
= np
->ops
->map_single(np
->device
, skb
->data
,
5223 len
, DMA_TO_DEVICE
);
5227 rp
->tx_buffs
[prod
].skb
= skb
;
5228 rp
->tx_buffs
[prod
].mapping
= mapping
;
5231 if (++rp
->mark_counter
== rp
->mark_freq
) {
5232 rp
->mark_counter
= 0;
5233 mrk
|= TX_DESC_MARK
;
5238 nfg
= skb_shinfo(skb
)->nr_frags
;
5240 tlen
-= MAX_TX_DESC_LEN
;
5245 unsigned int this_len
= len
;
5247 if (this_len
> MAX_TX_DESC_LEN
)
5248 this_len
= MAX_TX_DESC_LEN
;
5250 niu_set_txd(rp
, prod
, mapping
, this_len
, mrk
, nfg
);
5253 prod
= NEXT_TX(rp
, prod
);
5254 mapping
+= this_len
;
5258 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++) {
5259 skb_frag_t
*frag
= &skb_shinfo(skb
)->frags
[i
];
5262 mapping
= np
->ops
->map_page(np
->device
, frag
->page
,
5263 frag
->page_offset
, len
,
5266 rp
->tx_buffs
[prod
].skb
= NULL
;
5267 rp
->tx_buffs
[prod
].mapping
= mapping
;
5269 niu_set_txd(rp
, prod
, mapping
, len
, 0, 0);
5271 prod
= NEXT_TX(rp
, prod
);
5274 if (prod
< rp
->prod
)
5275 rp
->wrap_bit
^= TX_RING_KICK_WRAP
;
5278 nw64(TX_RING_KICK(rp
->tx_channel
), rp
->wrap_bit
| (prod
<< 3));
5280 if (unlikely(niu_tx_avail(rp
) <= (MAX_SKB_FRAGS
+ 1))) {
5281 netif_stop_queue(dev
);
5282 if (niu_tx_avail(rp
) > NIU_TX_WAKEUP_THRESH(rp
))
5283 netif_wake_queue(dev
);
5286 dev
->trans_start
= jiffies
;
5289 return NETDEV_TX_OK
;
5297 static int niu_change_mtu(struct net_device
*dev
, int new_mtu
)
5299 struct niu
*np
= netdev_priv(dev
);
5300 int err
, orig_jumbo
, new_jumbo
;
5302 if (new_mtu
< 68 || new_mtu
> NIU_MAX_MTU
)
5305 orig_jumbo
= (dev
->mtu
> ETH_DATA_LEN
);
5306 new_jumbo
= (new_mtu
> ETH_DATA_LEN
);
5310 if (!netif_running(dev
) ||
5311 (orig_jumbo
== new_jumbo
))
5314 niu_full_shutdown(np
, dev
);
5316 niu_free_channels(np
);
5318 niu_enable_napi(np
);
5320 err
= niu_alloc_channels(np
);
5324 spin_lock_irq(&np
->lock
);
5326 err
= niu_init_hw(np
);
5328 init_timer(&np
->timer
);
5329 np
->timer
.expires
= jiffies
+ HZ
;
5330 np
->timer
.data
= (unsigned long) np
;
5331 np
->timer
.function
= niu_timer
;
5333 err
= niu_enable_interrupts(np
, 1);
5338 spin_unlock_irq(&np
->lock
);
5341 netif_start_queue(dev
);
5342 if (np
->link_config
.loopback_mode
!= LOOPBACK_DISABLED
)
5343 netif_carrier_on(dev
);
5345 add_timer(&np
->timer
);
5351 static void niu_get_drvinfo(struct net_device
*dev
,
5352 struct ethtool_drvinfo
*info
)
5354 struct niu
*np
= netdev_priv(dev
);
5355 struct niu_vpd
*vpd
= &np
->vpd
;
5357 strcpy(info
->driver
, DRV_MODULE_NAME
);
5358 strcpy(info
->version
, DRV_MODULE_VERSION
);
5359 sprintf(info
->fw_version
, "%d.%d",
5360 vpd
->fcode_major
, vpd
->fcode_minor
);
5361 if (np
->parent
->plat_type
!= PLAT_TYPE_NIU
)
5362 strcpy(info
->bus_info
, pci_name(np
->pdev
));
5365 static int niu_get_settings(struct net_device
*dev
, struct ethtool_cmd
*cmd
)
5367 struct niu
*np
= netdev_priv(dev
);
5368 struct niu_link_config
*lp
;
5370 lp
= &np
->link_config
;
5372 memset(cmd
, 0, sizeof(*cmd
));
5373 cmd
->phy_address
= np
->phy_addr
;
5374 cmd
->supported
= lp
->supported
;
5375 cmd
->advertising
= lp
->advertising
;
5376 cmd
->autoneg
= lp
->autoneg
;
5377 cmd
->speed
= lp
->active_speed
;
5378 cmd
->duplex
= lp
->active_duplex
;
5383 static int niu_set_settings(struct net_device
*dev
, struct ethtool_cmd
*cmd
)
5388 static u32
niu_get_msglevel(struct net_device
*dev
)
5390 struct niu
*np
= netdev_priv(dev
);
5391 return np
->msg_enable
;
5394 static void niu_set_msglevel(struct net_device
*dev
, u32 value
)
5396 struct niu
*np
= netdev_priv(dev
);
5397 np
->msg_enable
= value
;
5400 static int niu_get_eeprom_len(struct net_device
*dev
)
5402 struct niu
*np
= netdev_priv(dev
);
5404 return np
->eeprom_len
;
5407 static int niu_get_eeprom(struct net_device
*dev
,
5408 struct ethtool_eeprom
*eeprom
, u8
*data
)
5410 struct niu
*np
= netdev_priv(dev
);
5411 u32 offset
, len
, val
;
5413 offset
= eeprom
->offset
;
5416 if (offset
+ len
< offset
)
5418 if (offset
>= np
->eeprom_len
)
5420 if (offset
+ len
> np
->eeprom_len
)
5421 len
= eeprom
->len
= np
->eeprom_len
- offset
;
5424 u32 b_offset
, b_count
;
5426 b_offset
= offset
& 3;
5427 b_count
= 4 - b_offset
;
5431 val
= nr64(ESPC_NCR((offset
- b_offset
) / 4));
5432 memcpy(data
, ((char *)&val
) + b_offset
, b_count
);
5438 val
= nr64(ESPC_NCR(offset
/ 4));
5439 memcpy(data
, &val
, 4);
5445 val
= nr64(ESPC_NCR(offset
/ 4));
5446 memcpy(data
, &val
, len
);
5451 static const struct {
5452 const char string
[ETH_GSTRING_LEN
];
5453 } niu_xmac_stat_keys
[] = {
5456 { "tx_fifo_errors" },
5457 { "tx_overflow_errors" },
5458 { "tx_max_pkt_size_errors" },
5459 { "tx_underflow_errors" },
5460 { "rx_local_faults" },
5461 { "rx_remote_faults" },
5462 { "rx_link_faults" },
5463 { "rx_align_errors" },
5475 { "rx_code_violations" },
5476 { "rx_len_errors" },
5477 { "rx_crc_errors" },
5478 { "rx_underflows" },
5480 { "pause_off_state" },
5481 { "pause_on_state" },
5482 { "pause_received" },
5485 #define NUM_XMAC_STAT_KEYS ARRAY_SIZE(niu_xmac_stat_keys)
5487 static const struct {
5488 const char string
[ETH_GSTRING_LEN
];
5489 } niu_bmac_stat_keys
[] = {
5490 { "tx_underflow_errors" },
5491 { "tx_max_pkt_size_errors" },
5496 { "rx_align_errors" },
5497 { "rx_crc_errors" },
5498 { "rx_len_errors" },
5499 { "pause_off_state" },
5500 { "pause_on_state" },
5501 { "pause_received" },
5504 #define NUM_BMAC_STAT_KEYS ARRAY_SIZE(niu_bmac_stat_keys)
5506 static const struct {
5507 const char string
[ETH_GSTRING_LEN
];
5508 } niu_rxchan_stat_keys
[] = {
5516 #define NUM_RXCHAN_STAT_KEYS ARRAY_SIZE(niu_rxchan_stat_keys)
5518 static const struct {
5519 const char string
[ETH_GSTRING_LEN
];
5520 } niu_txchan_stat_keys
[] = {
5527 #define NUM_TXCHAN_STAT_KEYS ARRAY_SIZE(niu_txchan_stat_keys)
5529 static void niu_get_strings(struct net_device
*dev
, u32 stringset
, u8
*data
)
5531 struct niu
*np
= netdev_priv(dev
);
5534 if (stringset
!= ETH_SS_STATS
)
5537 if (np
->flags
& NIU_FLAGS_XMAC
) {
5538 memcpy(data
, niu_xmac_stat_keys
,
5539 sizeof(niu_xmac_stat_keys
));
5540 data
+= sizeof(niu_xmac_stat_keys
);
5542 memcpy(data
, niu_bmac_stat_keys
,
5543 sizeof(niu_bmac_stat_keys
));
5544 data
+= sizeof(niu_bmac_stat_keys
);
5546 for (i
= 0; i
< np
->num_rx_rings
; i
++) {
5547 memcpy(data
, niu_rxchan_stat_keys
,
5548 sizeof(niu_rxchan_stat_keys
));
5549 data
+= sizeof(niu_rxchan_stat_keys
);
5551 for (i
= 0; i
< np
->num_tx_rings
; i
++) {
5552 memcpy(data
, niu_txchan_stat_keys
,
5553 sizeof(niu_txchan_stat_keys
));
5554 data
+= sizeof(niu_txchan_stat_keys
);
5558 static int niu_get_stats_count(struct net_device
*dev
)
5560 struct niu
*np
= netdev_priv(dev
);
5562 return ((np
->flags
& NIU_FLAGS_XMAC
?
5563 NUM_XMAC_STAT_KEYS
:
5564 NUM_BMAC_STAT_KEYS
) +
5565 (np
->num_rx_rings
* NUM_RXCHAN_STAT_KEYS
) +
5566 (np
->num_tx_rings
* NUM_TXCHAN_STAT_KEYS
));
5569 static void niu_get_ethtool_stats(struct net_device
*dev
,
5570 struct ethtool_stats
*stats
, u64
*data
)
5572 struct niu
*np
= netdev_priv(dev
);
5575 niu_sync_mac_stats(np
);
5576 if (np
->flags
& NIU_FLAGS_XMAC
) {
5577 memcpy(data
, &np
->mac_stats
.xmac
,
5578 sizeof(struct niu_xmac_stats
));
5579 data
+= (sizeof(struct niu_xmac_stats
) / sizeof(u64
));
5581 memcpy(data
, &np
->mac_stats
.bmac
,
5582 sizeof(struct niu_bmac_stats
));
5583 data
+= (sizeof(struct niu_bmac_stats
) / sizeof(u64
));
5585 for (i
= 0; i
< np
->num_rx_rings
; i
++) {
5586 struct rx_ring_info
*rp
= &np
->rx_rings
[i
];
5588 data
[0] = rp
->rx_channel
;
5589 data
[1] = rp
->rx_packets
;
5590 data
[2] = rp
->rx_bytes
;
5591 data
[3] = rp
->rx_dropped
;
5592 data
[4] = rp
->rx_errors
;
5595 for (i
= 0; i
< np
->num_tx_rings
; i
++) {
5596 struct tx_ring_info
*rp
= &np
->tx_rings
[i
];
5598 data
[0] = rp
->tx_channel
;
5599 data
[1] = rp
->tx_packets
;
5600 data
[2] = rp
->tx_bytes
;
5601 data
[3] = rp
->tx_errors
;
5606 static u64
niu_led_state_save(struct niu
*np
)
5608 if (np
->flags
& NIU_FLAGS_XMAC
)
5609 return nr64_mac(XMAC_CONFIG
);
5611 return nr64_mac(BMAC_XIF_CONFIG
);
5614 static void niu_led_state_restore(struct niu
*np
, u64 val
)
5616 if (np
->flags
& NIU_FLAGS_XMAC
)
5617 nw64_mac(XMAC_CONFIG
, val
);
5619 nw64_mac(BMAC_XIF_CONFIG
, val
);
5622 static void niu_force_led(struct niu
*np
, int on
)
5626 if (np
->flags
& NIU_FLAGS_XMAC
) {
5628 bit
= XMAC_CONFIG_FORCE_LED_ON
;
5630 reg
= BMAC_XIF_CONFIG
;
5631 bit
= BMAC_XIF_CONFIG_LINK_LED
;
5634 val
= nr64_mac(reg
);
5642 static int niu_phys_id(struct net_device
*dev
, u32 data
)
5644 struct niu
*np
= netdev_priv(dev
);
5648 if (!netif_running(dev
))
5654 orig_led_state
= niu_led_state_save(np
);
5655 for (i
= 0; i
< (data
* 2); i
++) {
5656 int on
= ((i
% 2) == 0);
5658 niu_force_led(np
, on
);
5660 if (msleep_interruptible(500))
5663 niu_led_state_restore(np
, orig_led_state
);
5668 static const struct ethtool_ops niu_ethtool_ops
= {
5669 .get_drvinfo
= niu_get_drvinfo
,
5670 .get_link
= ethtool_op_get_link
,
5671 .get_msglevel
= niu_get_msglevel
,
5672 .set_msglevel
= niu_set_msglevel
,
5673 .get_eeprom_len
= niu_get_eeprom_len
,
5674 .get_eeprom
= niu_get_eeprom
,
5675 .get_settings
= niu_get_settings
,
5676 .set_settings
= niu_set_settings
,
5677 .get_strings
= niu_get_strings
,
5678 .get_stats_count
= niu_get_stats_count
,
5679 .get_ethtool_stats
= niu_get_ethtool_stats
,
5680 .phys_id
= niu_phys_id
,
5683 static int niu_ldg_assign_ldn(struct niu
*np
, struct niu_parent
*parent
,
5686 if (ldg
< NIU_LDG_MIN
|| ldg
> NIU_LDG_MAX
)
5688 if (ldn
< 0 || ldn
> LDN_MAX
)
5691 parent
->ldg_map
[ldn
] = ldg
;
5693 if (np
->parent
->plat_type
== PLAT_TYPE_NIU
) {
5694 /* On N2 NIU, the ldn-->ldg assignments are setup and fixed by
5695 * the firmware, and we're not supposed to change them.
5696 * Validate the mapping, because if it's wrong we probably
5697 * won't get any interrupts and that's painful to debug.
5699 if (nr64(LDG_NUM(ldn
)) != ldg
) {
5700 dev_err(np
->device
, PFX
"Port %u, mis-matched "
5702 "for ldn %d, should be %d is %llu\n",
5704 (unsigned long long) nr64(LDG_NUM(ldn
)));
5708 nw64(LDG_NUM(ldn
), ldg
);
5713 static int niu_set_ldg_timer_res(struct niu
*np
, int res
)
5715 if (res
< 0 || res
> LDG_TIMER_RES_VAL
)
5719 nw64(LDG_TIMER_RES
, res
);
5724 static int niu_set_ldg_sid(struct niu
*np
, int ldg
, int func
, int vector
)
5726 if ((ldg
< NIU_LDG_MIN
|| ldg
> NIU_LDG_MAX
) ||
5727 (func
< 0 || func
> 3) ||
5728 (vector
< 0 || vector
> 0x1f))
5731 nw64(SID(ldg
), (func
<< SID_FUNC_SHIFT
) | vector
);
5736 static int __devinit
niu_pci_eeprom_read(struct niu
*np
, u32 addr
)
5738 u64 frame
, frame_base
= (ESPC_PIO_STAT_READ_START
|
5739 (addr
<< ESPC_PIO_STAT_ADDR_SHIFT
));
5742 if (addr
> (ESPC_PIO_STAT_ADDR
>> ESPC_PIO_STAT_ADDR_SHIFT
))
5746 nw64(ESPC_PIO_STAT
, frame
);
5750 frame
= nr64(ESPC_PIO_STAT
);
5751 if (frame
& ESPC_PIO_STAT_READ_END
)
5754 if (!(frame
& ESPC_PIO_STAT_READ_END
)) {
5755 dev_err(np
->device
, PFX
"EEPROM read timeout frame[%llx]\n",
5756 (unsigned long long) frame
);
5761 nw64(ESPC_PIO_STAT
, frame
);
5765 frame
= nr64(ESPC_PIO_STAT
);
5766 if (frame
& ESPC_PIO_STAT_READ_END
)
5769 if (!(frame
& ESPC_PIO_STAT_READ_END
)) {
5770 dev_err(np
->device
, PFX
"EEPROM read timeout frame[%llx]\n",
5771 (unsigned long long) frame
);
5775 frame
= nr64(ESPC_PIO_STAT
);
5776 return (frame
& ESPC_PIO_STAT_DATA
) >> ESPC_PIO_STAT_DATA_SHIFT
;
5779 static int __devinit
niu_pci_eeprom_read16(struct niu
*np
, u32 off
)
5781 int err
= niu_pci_eeprom_read(np
, off
);
5787 err
= niu_pci_eeprom_read(np
, off
+ 1);
5790 val
|= (err
& 0xff);
5795 static int __devinit
niu_pci_eeprom_read16_swp(struct niu
*np
, u32 off
)
5797 int err
= niu_pci_eeprom_read(np
, off
);
5804 err
= niu_pci_eeprom_read(np
, off
+ 1);
5808 val
|= (err
& 0xff) << 8;
5813 static int __devinit
niu_pci_vpd_get_propname(struct niu
*np
,
5820 for (i
= 0; i
< namebuf_len
; i
++) {
5821 int err
= niu_pci_eeprom_read(np
, off
+ i
);
5828 if (i
>= namebuf_len
)
5834 static void __devinit
niu_vpd_parse_version(struct niu
*np
)
5836 struct niu_vpd
*vpd
= &np
->vpd
;
5837 int len
= strlen(vpd
->version
) + 1;
5838 const char *s
= vpd
->version
;
5841 for (i
= 0; i
< len
- 5; i
++) {
5842 if (!strncmp(s
+ i
, "FCode ", 5))
5849 sscanf(s
, "%d.%d", &vpd
->fcode_major
, &vpd
->fcode_minor
);
5851 niudbg(PROBE
, "VPD_SCAN: FCODE major(%d) minor(%d)\n",
5852 vpd
->fcode_major
, vpd
->fcode_minor
);
5853 if (vpd
->fcode_major
> NIU_VPD_MIN_MAJOR
||
5854 (vpd
->fcode_major
== NIU_VPD_MIN_MAJOR
&&
5855 vpd
->fcode_minor
>= NIU_VPD_MIN_MINOR
))
5856 np
->flags
|= NIU_FLAGS_VPD_VALID
;
5859 /* ESPC_PIO_EN_ENABLE must be set */
5860 static int __devinit
niu_pci_vpd_scan_props(struct niu
*np
,
5863 unsigned int found_mask
= 0;
5864 #define FOUND_MASK_MODEL 0x00000001
5865 #define FOUND_MASK_BMODEL 0x00000002
5866 #define FOUND_MASK_VERS 0x00000004
5867 #define FOUND_MASK_MAC 0x00000008
5868 #define FOUND_MASK_NMAC 0x00000010
5869 #define FOUND_MASK_PHY 0x00000020
5870 #define FOUND_MASK_ALL 0x0000003f
5872 niudbg(PROBE
, "VPD_SCAN: start[%x] end[%x]\n",
5874 while (start
< end
) {
5875 int len
, err
, instance
, type
, prop_len
;
5880 if (found_mask
== FOUND_MASK_ALL
) {
5881 niu_vpd_parse_version(np
);
5885 err
= niu_pci_eeprom_read(np
, start
+ 2);
5891 instance
= niu_pci_eeprom_read(np
, start
);
5892 type
= niu_pci_eeprom_read(np
, start
+ 3);
5893 prop_len
= niu_pci_eeprom_read(np
, start
+ 4);
5894 err
= niu_pci_vpd_get_propname(np
, start
+ 5, namebuf
, 64);
5900 if (!strcmp(namebuf
, "model")) {
5901 prop_buf
= np
->vpd
.model
;
5902 max_len
= NIU_VPD_MODEL_MAX
;
5903 found_mask
|= FOUND_MASK_MODEL
;
5904 } else if (!strcmp(namebuf
, "board-model")) {
5905 prop_buf
= np
->vpd
.board_model
;
5906 max_len
= NIU_VPD_BD_MODEL_MAX
;
5907 found_mask
|= FOUND_MASK_BMODEL
;
5908 } else if (!strcmp(namebuf
, "version")) {
5909 prop_buf
= np
->vpd
.version
;
5910 max_len
= NIU_VPD_VERSION_MAX
;
5911 found_mask
|= FOUND_MASK_VERS
;
5912 } else if (!strcmp(namebuf
, "local-mac-address")) {
5913 prop_buf
= np
->vpd
.local_mac
;
5915 found_mask
|= FOUND_MASK_MAC
;
5916 } else if (!strcmp(namebuf
, "num-mac-addresses")) {
5917 prop_buf
= &np
->vpd
.mac_num
;
5919 found_mask
|= FOUND_MASK_NMAC
;
5920 } else if (!strcmp(namebuf
, "phy-type")) {
5921 prop_buf
= np
->vpd
.phy_type
;
5922 max_len
= NIU_VPD_PHY_TYPE_MAX
;
5923 found_mask
|= FOUND_MASK_PHY
;
5926 if (max_len
&& prop_len
> max_len
) {
5927 dev_err(np
->device
, PFX
"Property '%s' length (%d) is "
5928 "too long.\n", namebuf
, prop_len
);
5933 u32 off
= start
+ 5 + err
;
5936 niudbg(PROBE
, "VPD_SCAN: Reading in property [%s] "
5937 "len[%d]\n", namebuf
, prop_len
);
5938 for (i
= 0; i
< prop_len
; i
++)
5939 *prop_buf
++ = niu_pci_eeprom_read(np
, off
+ i
);
5948 /* ESPC_PIO_EN_ENABLE must be set */
5949 static void __devinit
niu_pci_vpd_fetch(struct niu
*np
, u32 start
)
5954 err
= niu_pci_eeprom_read16_swp(np
, start
+ 1);
5960 while (start
+ offset
< ESPC_EEPROM_SIZE
) {
5961 u32 here
= start
+ offset
;
5964 err
= niu_pci_eeprom_read(np
, here
);
5968 err
= niu_pci_eeprom_read16_swp(np
, here
+ 1);
5972 here
= start
+ offset
+ 3;
5973 end
= start
+ offset
+ err
;
5977 err
= niu_pci_vpd_scan_props(np
, here
, end
);
5978 if (err
< 0 || err
== 1)
5983 /* ESPC_PIO_EN_ENABLE must be set */
5984 static u32 __devinit
niu_pci_vpd_offset(struct niu
*np
)
5986 u32 start
= 0, end
= ESPC_EEPROM_SIZE
, ret
;
5989 while (start
< end
) {
5992 /* ROM header signature? */
5993 err
= niu_pci_eeprom_read16(np
, start
+ 0);
5997 /* Apply offset to PCI data structure. */
5998 err
= niu_pci_eeprom_read16(np
, start
+ 23);
6003 /* Check for "PCIR" signature. */
6004 err
= niu_pci_eeprom_read16(np
, start
+ 0);
6007 err
= niu_pci_eeprom_read16(np
, start
+ 2);
6011 /* Check for OBP image type. */
6012 err
= niu_pci_eeprom_read(np
, start
+ 20);
6016 err
= niu_pci_eeprom_read(np
, ret
+ 2);
6020 start
= ret
+ (err
* 512);
6024 err
= niu_pci_eeprom_read16_swp(np
, start
+ 8);
6029 err
= niu_pci_eeprom_read(np
, ret
+ 0);
6039 static int __devinit
niu_phy_type_prop_decode(struct niu
*np
,
6040 const char *phy_prop
)
6042 if (!strcmp(phy_prop
, "mif")) {
6043 /* 1G copper, MII */
6044 np
->flags
&= ~(NIU_FLAGS_FIBER
|
6046 np
->mac_xcvr
= MAC_XCVR_MII
;
6047 } else if (!strcmp(phy_prop
, "xgf")) {
6048 /* 10G fiber, XPCS */
6049 np
->flags
|= (NIU_FLAGS_10G
|
6051 np
->mac_xcvr
= MAC_XCVR_XPCS
;
6052 } else if (!strcmp(phy_prop
, "pcs")) {
6054 np
->flags
&= ~NIU_FLAGS_10G
;
6055 np
->flags
|= NIU_FLAGS_FIBER
;
6056 np
->mac_xcvr
= MAC_XCVR_PCS
;
6057 } else if (!strcmp(phy_prop
, "xgc")) {
6058 /* 10G copper, XPCS */
6059 np
->flags
|= NIU_FLAGS_10G
;
6060 np
->flags
&= ~NIU_FLAGS_FIBER
;
6061 np
->mac_xcvr
= MAC_XCVR_XPCS
;
6068 static void __devinit
niu_pci_vpd_validate(struct niu
*np
)
6070 struct net_device
*dev
= np
->dev
;
6071 struct niu_vpd
*vpd
= &np
->vpd
;
6074 if (!is_valid_ether_addr(&vpd
->local_mac
[0])) {
6075 dev_err(np
->device
, PFX
"VPD MAC invalid, "
6076 "falling back to SPROM.\n");
6078 np
->flags
&= ~NIU_FLAGS_VPD_VALID
;
6082 if (niu_phy_type_prop_decode(np
, np
->vpd
.phy_type
)) {
6083 dev_err(np
->device
, PFX
"Illegal phy string [%s].\n",
6085 dev_err(np
->device
, PFX
"Falling back to SPROM.\n");
6086 np
->flags
&= ~NIU_FLAGS_VPD_VALID
;
6090 memcpy(dev
->perm_addr
, vpd
->local_mac
, ETH_ALEN
);
6092 val8
= dev
->perm_addr
[5];
6093 dev
->perm_addr
[5] += np
->port
;
6094 if (dev
->perm_addr
[5] < val8
)
6095 dev
->perm_addr
[4]++;
6097 memcpy(dev
->dev_addr
, dev
->perm_addr
, dev
->addr_len
);
6100 static int __devinit
niu_pci_probe_sprom(struct niu
*np
)
6102 struct net_device
*dev
= np
->dev
;
6107 val
= (nr64(ESPC_VER_IMGSZ
) & ESPC_VER_IMGSZ_IMGSZ
);
6108 val
>>= ESPC_VER_IMGSZ_IMGSZ_SHIFT
;
6111 np
->eeprom_len
= len
;
6113 niudbg(PROBE
, "SPROM: Image size %llu\n", (unsigned long long) val
);
6116 for (i
= 0; i
< len
; i
++) {
6117 val
= nr64(ESPC_NCR(i
));
6118 sum
+= (val
>> 0) & 0xff;
6119 sum
+= (val
>> 8) & 0xff;
6120 sum
+= (val
>> 16) & 0xff;
6121 sum
+= (val
>> 24) & 0xff;
6123 niudbg(PROBE
, "SPROM: Checksum %x\n", (int)(sum
& 0xff));
6124 if ((sum
& 0xff) != 0xab) {
6125 dev_err(np
->device
, PFX
"Bad SPROM checksum "
6126 "(%x, should be 0xab)\n", (int) (sum
& 0xff));
6130 val
= nr64(ESPC_PHY_TYPE
);
6133 val8
= (val
& ESPC_PHY_TYPE_PORT0
) >>
6134 ESPC_PHY_TYPE_PORT0_SHIFT
;
6137 val8
= (val
& ESPC_PHY_TYPE_PORT1
) >>
6138 ESPC_PHY_TYPE_PORT1_SHIFT
;
6141 val8
= (val
& ESPC_PHY_TYPE_PORT2
) >>
6142 ESPC_PHY_TYPE_PORT2_SHIFT
;
6145 val8
= (val
& ESPC_PHY_TYPE_PORT3
) >>
6146 ESPC_PHY_TYPE_PORT3_SHIFT
;
6149 dev_err(np
->device
, PFX
"Bogus port number %u\n",
6153 niudbg(PROBE
, "SPROM: PHY type %x\n", val8
);
6156 case ESPC_PHY_TYPE_1G_COPPER
:
6157 /* 1G copper, MII */
6158 np
->flags
&= ~(NIU_FLAGS_FIBER
|
6160 np
->mac_xcvr
= MAC_XCVR_MII
;
6163 case ESPC_PHY_TYPE_1G_FIBER
:
6165 np
->flags
&= ~NIU_FLAGS_10G
;
6166 np
->flags
|= NIU_FLAGS_FIBER
;
6167 np
->mac_xcvr
= MAC_XCVR_PCS
;
6170 case ESPC_PHY_TYPE_10G_COPPER
:
6171 /* 10G copper, XPCS */
6172 np
->flags
|= NIU_FLAGS_10G
;
6173 np
->flags
&= ~NIU_FLAGS_FIBER
;
6174 np
->mac_xcvr
= MAC_XCVR_XPCS
;
6177 case ESPC_PHY_TYPE_10G_FIBER
:
6178 /* 10G fiber, XPCS */
6179 np
->flags
|= (NIU_FLAGS_10G
|
6181 np
->mac_xcvr
= MAC_XCVR_XPCS
;
6185 dev_err(np
->device
, PFX
"Bogus SPROM phy type %u\n", val8
);
6189 val
= nr64(ESPC_MAC_ADDR0
);
6190 niudbg(PROBE
, "SPROM: MAC_ADDR0[%08llx]\n",
6191 (unsigned long long) val
);
6192 dev
->perm_addr
[0] = (val
>> 0) & 0xff;
6193 dev
->perm_addr
[1] = (val
>> 8) & 0xff;
6194 dev
->perm_addr
[2] = (val
>> 16) & 0xff;
6195 dev
->perm_addr
[3] = (val
>> 24) & 0xff;
6197 val
= nr64(ESPC_MAC_ADDR1
);
6198 niudbg(PROBE
, "SPROM: MAC_ADDR1[%08llx]\n",
6199 (unsigned long long) val
);
6200 dev
->perm_addr
[4] = (val
>> 0) & 0xff;
6201 dev
->perm_addr
[5] = (val
>> 8) & 0xff;
6203 if (!is_valid_ether_addr(&dev
->perm_addr
[0])) {
6204 dev_err(np
->device
, PFX
"SPROM MAC address invalid\n");
6205 dev_err(np
->device
, PFX
"[ \n");
6206 for (i
= 0; i
< 6; i
++)
6207 printk("%02x ", dev
->perm_addr
[i
]);
6212 val8
= dev
->perm_addr
[5];
6213 dev
->perm_addr
[5] += np
->port
;
6214 if (dev
->perm_addr
[5] < val8
)
6215 dev
->perm_addr
[4]++;
6217 memcpy(dev
->dev_addr
, dev
->perm_addr
, dev
->addr_len
);
6219 val
= nr64(ESPC_MOD_STR_LEN
);
6220 niudbg(PROBE
, "SPROM: MOD_STR_LEN[%llu]\n",
6221 (unsigned long long) val
);
6225 for (i
= 0; i
< val
; i
+= 4) {
6226 u64 tmp
= nr64(ESPC_NCR(5 + (i
/ 4)));
6228 np
->vpd
.model
[i
+ 3] = (tmp
>> 0) & 0xff;
6229 np
->vpd
.model
[i
+ 2] = (tmp
>> 8) & 0xff;
6230 np
->vpd
.model
[i
+ 1] = (tmp
>> 16) & 0xff;
6231 np
->vpd
.model
[i
+ 0] = (tmp
>> 24) & 0xff;
6233 np
->vpd
.model
[val
] = '\0';
6235 val
= nr64(ESPC_BD_MOD_STR_LEN
);
6236 niudbg(PROBE
, "SPROM: BD_MOD_STR_LEN[%llu]\n",
6237 (unsigned long long) val
);
6241 for (i
= 0; i
< val
; i
+= 4) {
6242 u64 tmp
= nr64(ESPC_NCR(14 + (i
/ 4)));
6244 np
->vpd
.board_model
[i
+ 3] = (tmp
>> 0) & 0xff;
6245 np
->vpd
.board_model
[i
+ 2] = (tmp
>> 8) & 0xff;
6246 np
->vpd
.board_model
[i
+ 1] = (tmp
>> 16) & 0xff;
6247 np
->vpd
.board_model
[i
+ 0] = (tmp
>> 24) & 0xff;
6249 np
->vpd
.board_model
[val
] = '\0';
6252 nr64(ESPC_NUM_PORTS_MACS
) & ESPC_NUM_PORTS_MACS_VAL
;
6253 niudbg(PROBE
, "SPROM: NUM_PORTS_MACS[%d]\n",
6259 static int __devinit
niu_get_and_validate_port(struct niu
*np
)
6261 struct niu_parent
*parent
= np
->parent
;
6264 np
->flags
|= NIU_FLAGS_XMAC
;
6266 if (!parent
->num_ports
) {
6267 if (parent
->plat_type
== PLAT_TYPE_NIU
) {
6268 parent
->num_ports
= 2;
6270 parent
->num_ports
= nr64(ESPC_NUM_PORTS_MACS
) &
6271 ESPC_NUM_PORTS_MACS_VAL
;
6273 if (!parent
->num_ports
)
6274 parent
->num_ports
= 4;
6278 niudbg(PROBE
, "niu_get_and_validate_port: port[%d] num_ports[%d]\n",
6279 np
->port
, parent
->num_ports
);
6280 if (np
->port
>= parent
->num_ports
)
6286 static int __devinit
phy_record(struct niu_parent
*parent
,
6287 struct phy_probe_info
*p
,
6288 int dev_id_1
, int dev_id_2
, u8 phy_port
,
6291 u32 id
= (dev_id_1
<< 16) | dev_id_2
;
6294 if (dev_id_1
< 0 || dev_id_2
< 0)
6296 if (type
== PHY_TYPE_PMA_PMD
|| type
== PHY_TYPE_PCS
) {
6297 if ((id
& NIU_PHY_ID_MASK
) != NIU_PHY_ID_BCM8704
)
6300 if ((id
& NIU_PHY_ID_MASK
) != NIU_PHY_ID_BCM5464R
)
6304 pr_info("niu%d: Found PHY %08x type %s at phy_port %u\n",
6306 (type
== PHY_TYPE_PMA_PMD
?
6308 (type
== PHY_TYPE_PCS
?
6312 if (p
->cur
[type
] >= NIU_MAX_PORTS
) {
6313 printk(KERN_ERR PFX
"Too many PHY ports.\n");
6317 p
->phy_id
[type
][idx
] = id
;
6318 p
->phy_port
[type
][idx
] = phy_port
;
6319 p
->cur
[type
] = idx
+ 1;
6323 static int __devinit
port_has_10g(struct phy_probe_info
*p
, int port
)
6327 for (i
= 0; i
< p
->cur
[PHY_TYPE_PMA_PMD
]; i
++) {
6328 if (p
->phy_port
[PHY_TYPE_PMA_PMD
][i
] == port
)
6331 for (i
= 0; i
< p
->cur
[PHY_TYPE_PCS
]; i
++) {
6332 if (p
->phy_port
[PHY_TYPE_PCS
][i
] == port
)
6339 static int __devinit
count_10g_ports(struct phy_probe_info
*p
, int *lowest
)
6345 for (port
= 8; port
< 32; port
++) {
6346 if (port_has_10g(p
, port
)) {
6356 static int __devinit
count_1g_ports(struct phy_probe_info
*p
, int *lowest
)
6359 if (p
->cur
[PHY_TYPE_MII
])
6360 *lowest
= p
->phy_port
[PHY_TYPE_MII
][0];
6362 return p
->cur
[PHY_TYPE_MII
];
6365 static void __devinit
niu_n2_divide_channels(struct niu_parent
*parent
)
6367 int num_ports
= parent
->num_ports
;
6370 for (i
= 0; i
< num_ports
; i
++) {
6371 parent
->rxchan_per_port
[i
] = (16 / num_ports
);
6372 parent
->txchan_per_port
[i
] = (16 / num_ports
);
6374 pr_info(PFX
"niu%d: Port %u [%u RX chans] "
6377 parent
->rxchan_per_port
[i
],
6378 parent
->txchan_per_port
[i
]);
6382 static void __devinit
niu_divide_channels(struct niu_parent
*parent
,
6383 int num_10g
, int num_1g
)
6385 int num_ports
= parent
->num_ports
;
6386 int rx_chans_per_10g
, rx_chans_per_1g
;
6387 int tx_chans_per_10g
, tx_chans_per_1g
;
6388 int i
, tot_rx
, tot_tx
;
6390 if (!num_10g
|| !num_1g
) {
6391 rx_chans_per_10g
= rx_chans_per_1g
=
6392 (NIU_NUM_RXCHAN
/ num_ports
);
6393 tx_chans_per_10g
= tx_chans_per_1g
=
6394 (NIU_NUM_TXCHAN
/ num_ports
);
6396 rx_chans_per_1g
= NIU_NUM_RXCHAN
/ 8;
6397 rx_chans_per_10g
= (NIU_NUM_RXCHAN
-
6398 (rx_chans_per_1g
* num_1g
)) /
6401 tx_chans_per_1g
= NIU_NUM_TXCHAN
/ 6;
6402 tx_chans_per_10g
= (NIU_NUM_TXCHAN
-
6403 (tx_chans_per_1g
* num_1g
)) /
6407 tot_rx
= tot_tx
= 0;
6408 for (i
= 0; i
< num_ports
; i
++) {
6409 int type
= phy_decode(parent
->port_phy
, i
);
6411 if (type
== PORT_TYPE_10G
) {
6412 parent
->rxchan_per_port
[i
] = rx_chans_per_10g
;
6413 parent
->txchan_per_port
[i
] = tx_chans_per_10g
;
6415 parent
->rxchan_per_port
[i
] = rx_chans_per_1g
;
6416 parent
->txchan_per_port
[i
] = tx_chans_per_1g
;
6418 pr_info(PFX
"niu%d: Port %u [%u RX chans] "
6421 parent
->rxchan_per_port
[i
],
6422 parent
->txchan_per_port
[i
]);
6423 tot_rx
+= parent
->rxchan_per_port
[i
];
6424 tot_tx
+= parent
->txchan_per_port
[i
];
6427 if (tot_rx
> NIU_NUM_RXCHAN
) {
6428 printk(KERN_ERR PFX
"niu%d: Too many RX channels (%d), "
6429 "resetting to one per port.\n",
6430 parent
->index
, tot_rx
);
6431 for (i
= 0; i
< num_ports
; i
++)
6432 parent
->rxchan_per_port
[i
] = 1;
6434 if (tot_tx
> NIU_NUM_TXCHAN
) {
6435 printk(KERN_ERR PFX
"niu%d: Too many TX channels (%d), "
6436 "resetting to one per port.\n",
6437 parent
->index
, tot_tx
);
6438 for (i
= 0; i
< num_ports
; i
++)
6439 parent
->txchan_per_port
[i
] = 1;
6441 if (tot_rx
< NIU_NUM_RXCHAN
|| tot_tx
< NIU_NUM_TXCHAN
) {
6442 printk(KERN_WARNING PFX
"niu%d: Driver bug, wasted channels, "
6444 parent
->index
, tot_rx
, tot_tx
);
6448 static void __devinit
niu_divide_rdc_groups(struct niu_parent
*parent
,
6449 int num_10g
, int num_1g
)
6451 int i
, num_ports
= parent
->num_ports
;
6452 int rdc_group
, rdc_groups_per_port
;
6453 int rdc_channel_base
;
6456 rdc_groups_per_port
= NIU_NUM_RDC_TABLES
/ num_ports
;
6458 rdc_channel_base
= 0;
6460 for (i
= 0; i
< num_ports
; i
++) {
6461 struct niu_rdc_tables
*tp
= &parent
->rdc_group_cfg
[i
];
6462 int grp
, num_channels
= parent
->rxchan_per_port
[i
];
6463 int this_channel_offset
;
6465 tp
->first_table_num
= rdc_group
;
6466 tp
->num_tables
= rdc_groups_per_port
;
6467 this_channel_offset
= 0;
6468 for (grp
= 0; grp
< tp
->num_tables
; grp
++) {
6469 struct rdc_table
*rt
= &tp
->tables
[grp
];
6472 pr_info(PFX
"niu%d: Port %d RDC tbl(%d) [ ",
6473 parent
->index
, i
, tp
->first_table_num
+ grp
);
6474 for (slot
= 0; slot
< NIU_RDC_TABLE_SLOTS
; slot
++) {
6475 rt
->rxdma_channel
[slot
] =
6476 rdc_channel_base
+ this_channel_offset
;
6478 printk("%d ", rt
->rxdma_channel
[slot
]);
6480 if (++this_channel_offset
== num_channels
)
6481 this_channel_offset
= 0;
6486 parent
->rdc_default
[i
] = rdc_channel_base
;
6488 rdc_channel_base
+= num_channels
;
6489 rdc_group
+= rdc_groups_per_port
;
6493 static int __devinit
fill_phy_probe_info(struct niu
*np
,
6494 struct niu_parent
*parent
,
6495 struct phy_probe_info
*info
)
6497 unsigned long flags
;
6500 memset(info
, 0, sizeof(*info
));
6502 /* Port 0 to 7 are reserved for onboard Serdes, probe the rest. */
6503 niu_lock_parent(np
, flags
);
6505 for (port
= 8; port
< 32; port
++) {
6506 int dev_id_1
, dev_id_2
;
6508 dev_id_1
= mdio_read(np
, port
,
6509 NIU_PMA_PMD_DEV_ADDR
, MII_PHYSID1
);
6510 dev_id_2
= mdio_read(np
, port
,
6511 NIU_PMA_PMD_DEV_ADDR
, MII_PHYSID2
);
6512 err
= phy_record(parent
, info
, dev_id_1
, dev_id_2
, port
,
6516 dev_id_1
= mdio_read(np
, port
,
6517 NIU_PCS_DEV_ADDR
, MII_PHYSID1
);
6518 dev_id_2
= mdio_read(np
, port
,
6519 NIU_PCS_DEV_ADDR
, MII_PHYSID2
);
6520 err
= phy_record(parent
, info
, dev_id_1
, dev_id_2
, port
,
6524 dev_id_1
= mii_read(np
, port
, MII_PHYSID1
);
6525 dev_id_2
= mii_read(np
, port
, MII_PHYSID2
);
6526 err
= phy_record(parent
, info
, dev_id_1
, dev_id_2
, port
,
6531 niu_unlock_parent(np
, flags
);
6536 static int __devinit
walk_phys(struct niu
*np
, struct niu_parent
*parent
)
6538 struct phy_probe_info
*info
= &parent
->phy_probe_info
;
6539 int lowest_10g
, lowest_1g
;
6540 int num_10g
, num_1g
;
6544 err
= fill_phy_probe_info(np
, parent
, info
);
6548 num_10g
= count_10g_ports(info
, &lowest_10g
);
6549 num_1g
= count_1g_ports(info
, &lowest_1g
);
6551 switch ((num_10g
<< 4) | num_1g
) {
6553 if (lowest_1g
== 10)
6554 parent
->plat_type
= PLAT_TYPE_VF_P0
;
6555 else if (lowest_1g
== 26)
6556 parent
->plat_type
= PLAT_TYPE_VF_P1
;
6558 goto unknown_vg_1g_port
;
6562 val
= (phy_encode(PORT_TYPE_10G
, 0) |
6563 phy_encode(PORT_TYPE_10G
, 1) |
6564 phy_encode(PORT_TYPE_1G
, 2) |
6565 phy_encode(PORT_TYPE_1G
, 3));
6569 val
= (phy_encode(PORT_TYPE_10G
, 0) |
6570 phy_encode(PORT_TYPE_10G
, 1));
6574 val
= phy_encode(PORT_TYPE_10G
, np
->port
);
6578 if (lowest_1g
== 10)
6579 parent
->plat_type
= PLAT_TYPE_VF_P0
;
6580 else if (lowest_1g
== 26)
6581 parent
->plat_type
= PLAT_TYPE_VF_P1
;
6583 goto unknown_vg_1g_port
;
6587 if ((lowest_10g
& 0x7) == 0)
6588 val
= (phy_encode(PORT_TYPE_10G
, 0) |
6589 phy_encode(PORT_TYPE_1G
, 1) |
6590 phy_encode(PORT_TYPE_1G
, 2) |
6591 phy_encode(PORT_TYPE_1G
, 3));
6593 val
= (phy_encode(PORT_TYPE_1G
, 0) |
6594 phy_encode(PORT_TYPE_10G
, 1) |
6595 phy_encode(PORT_TYPE_1G
, 2) |
6596 phy_encode(PORT_TYPE_1G
, 3));
6600 if (lowest_1g
== 10)
6601 parent
->plat_type
= PLAT_TYPE_VF_P0
;
6602 else if (lowest_1g
== 26)
6603 parent
->plat_type
= PLAT_TYPE_VF_P1
;
6605 goto unknown_vg_1g_port
;
6607 val
= (phy_encode(PORT_TYPE_1G
, 0) |
6608 phy_encode(PORT_TYPE_1G
, 1) |
6609 phy_encode(PORT_TYPE_1G
, 2) |
6610 phy_encode(PORT_TYPE_1G
, 3));
6614 printk(KERN_ERR PFX
"Unsupported port config "
6620 parent
->port_phy
= val
;
6622 if (parent
->plat_type
== PLAT_TYPE_NIU
)
6623 niu_n2_divide_channels(parent
);
6625 niu_divide_channels(parent
, num_10g
, num_1g
);
6627 niu_divide_rdc_groups(parent
, num_10g
, num_1g
);
6632 printk(KERN_ERR PFX
"Cannot identify platform type, 1gport=%d\n",
6637 static int __devinit
niu_probe_ports(struct niu
*np
)
6639 struct niu_parent
*parent
= np
->parent
;
6642 niudbg(PROBE
, "niu_probe_ports(): port_phy[%08x]\n",
6645 if (parent
->port_phy
== PORT_PHY_UNKNOWN
) {
6646 err
= walk_phys(np
, parent
);
6650 niu_set_ldg_timer_res(np
, 2);
6651 for (i
= 0; i
<= LDN_MAX
; i
++)
6652 niu_ldn_irq_enable(np
, i
, 0);
6655 if (parent
->port_phy
== PORT_PHY_INVALID
)
6661 static int __devinit
niu_classifier_swstate_init(struct niu
*np
)
6663 struct niu_classifier
*cp
= &np
->clas
;
6665 niudbg(PROBE
, "niu_classifier_swstate_init: num_tcam(%d)\n",
6666 np
->parent
->tcam_num_entries
);
6668 cp
->tcam_index
= (u16
) np
->port
;
6669 cp
->h1_init
= 0xffffffff;
6670 cp
->h2_init
= 0xffff;
6672 return fflp_early_init(np
);
6675 static void __devinit
niu_link_config_init(struct niu
*np
)
6677 struct niu_link_config
*lp
= &np
->link_config
;
6679 lp
->advertising
= (ADVERTISED_10baseT_Half
|
6680 ADVERTISED_10baseT_Full
|
6681 ADVERTISED_100baseT_Half
|
6682 ADVERTISED_100baseT_Full
|
6683 ADVERTISED_1000baseT_Half
|
6684 ADVERTISED_1000baseT_Full
|
6685 ADVERTISED_10000baseT_Full
|
6686 ADVERTISED_Autoneg
);
6687 lp
->speed
= lp
->active_speed
= SPEED_INVALID
;
6688 lp
->duplex
= lp
->active_duplex
= DUPLEX_INVALID
;
6690 lp
->loopback_mode
= LOOPBACK_MAC
;
6691 lp
->active_speed
= SPEED_10000
;
6692 lp
->active_duplex
= DUPLEX_FULL
;
6694 lp
->loopback_mode
= LOOPBACK_DISABLED
;
6698 static int __devinit
niu_init_mac_ipp_pcs_base(struct niu
*np
)
6702 np
->mac_regs
= np
->regs
+ XMAC_PORT0_OFF
;
6703 np
->ipp_off
= 0x00000;
6704 np
->pcs_off
= 0x04000;
6705 np
->xpcs_off
= 0x02000;
6709 np
->mac_regs
= np
->regs
+ XMAC_PORT1_OFF
;
6710 np
->ipp_off
= 0x08000;
6711 np
->pcs_off
= 0x0a000;
6712 np
->xpcs_off
= 0x08000;
6716 np
->mac_regs
= np
->regs
+ BMAC_PORT2_OFF
;
6717 np
->ipp_off
= 0x04000;
6718 np
->pcs_off
= 0x0e000;
6719 np
->xpcs_off
= ~0UL;
6723 np
->mac_regs
= np
->regs
+ BMAC_PORT3_OFF
;
6724 np
->ipp_off
= 0x0c000;
6725 np
->pcs_off
= 0x12000;
6726 np
->xpcs_off
= ~0UL;
6730 dev_err(np
->device
, PFX
"Port %u is invalid, cannot "
6731 "compute MAC block offset.\n", np
->port
);
6738 static void __devinit
niu_try_msix(struct niu
*np
, u8
*ldg_num_map
)
6740 struct msix_entry msi_vec
[NIU_NUM_LDG
];
6741 struct niu_parent
*parent
= np
->parent
;
6742 struct pci_dev
*pdev
= np
->pdev
;
6743 int i
, num_irqs
, err
;
6746 first_ldg
= (NIU_NUM_LDG
/ parent
->num_ports
) * np
->port
;
6747 for (i
= 0; i
< (NIU_NUM_LDG
/ parent
->num_ports
); i
++)
6748 ldg_num_map
[i
] = first_ldg
+ i
;
6750 num_irqs
= (parent
->rxchan_per_port
[np
->port
] +
6751 parent
->txchan_per_port
[np
->port
] +
6752 (np
->port
== 0 ? 3 : 1));
6753 BUG_ON(num_irqs
> (NIU_NUM_LDG
/ parent
->num_ports
));
6756 for (i
= 0; i
< num_irqs
; i
++) {
6757 msi_vec
[i
].vector
= 0;
6758 msi_vec
[i
].entry
= i
;
6761 err
= pci_enable_msix(pdev
, msi_vec
, num_irqs
);
6763 np
->flags
&= ~NIU_FLAGS_MSIX
;
6771 np
->flags
|= NIU_FLAGS_MSIX
;
6772 for (i
= 0; i
< num_irqs
; i
++)
6773 np
->ldg
[i
].irq
= msi_vec
[i
].vector
;
6774 np
->num_ldg
= num_irqs
;
6777 static int __devinit
niu_n2_irq_init(struct niu
*np
, u8
*ldg_num_map
)
6779 #ifdef CONFIG_SPARC64
6780 struct of_device
*op
= np
->op
;
6781 const u32
*int_prop
;
6784 int_prop
= of_get_property(op
->node
, "interrupts", NULL
);
6788 for (i
= 0; i
< op
->num_irqs
; i
++) {
6789 ldg_num_map
[i
] = int_prop
[i
];
6790 np
->ldg
[i
].irq
= op
->irqs
[i
];
6793 np
->num_ldg
= op
->num_irqs
;
6801 static int __devinit
niu_ldg_init(struct niu
*np
)
6803 struct niu_parent
*parent
= np
->parent
;
6804 u8 ldg_num_map
[NIU_NUM_LDG
];
6805 int first_chan
, num_chan
;
6806 int i
, err
, ldg_rotor
;
6810 np
->ldg
[0].irq
= np
->dev
->irq
;
6811 if (parent
->plat_type
== PLAT_TYPE_NIU
) {
6812 err
= niu_n2_irq_init(np
, ldg_num_map
);
6816 niu_try_msix(np
, ldg_num_map
);
6819 for (i
= 0; i
< np
->num_ldg
; i
++) {
6820 struct niu_ldg
*lp
= &np
->ldg
[i
];
6822 netif_napi_add(np
->dev
, &lp
->napi
, niu_poll
, 64);
6825 lp
->ldg_num
= ldg_num_map
[i
];
6826 lp
->timer
= 2; /* XXX */
6828 /* On N2 NIU the firmware has setup the SID mappings so they go
6829 * to the correct values that will route the LDG to the proper
6830 * interrupt in the NCU interrupt table.
6832 if (np
->parent
->plat_type
!= PLAT_TYPE_NIU
) {
6833 err
= niu_set_ldg_sid(np
, lp
->ldg_num
, port
, i
);
6839 /* We adopt the LDG assignment ordering used by the N2 NIU
6840 * 'interrupt' properties because that simplifies a lot of
6841 * things. This ordering is:
6844 * MIF (if port zero)
6845 * SYSERR (if port zero)
6852 err
= niu_ldg_assign_ldn(np
, parent
, ldg_num_map
[ldg_rotor
],
6858 if (ldg_rotor
== np
->num_ldg
)
6862 err
= niu_ldg_assign_ldn(np
, parent
,
6863 ldg_num_map
[ldg_rotor
],
6869 if (ldg_rotor
== np
->num_ldg
)
6872 err
= niu_ldg_assign_ldn(np
, parent
,
6873 ldg_num_map
[ldg_rotor
],
6879 if (ldg_rotor
== np
->num_ldg
)
6885 for (i
= 0; i
< port
; i
++)
6886 first_chan
+= parent
->rxchan_per_port
[port
];
6887 num_chan
= parent
->rxchan_per_port
[port
];
6889 for (i
= first_chan
; i
< (first_chan
+ num_chan
); i
++) {
6890 err
= niu_ldg_assign_ldn(np
, parent
,
6891 ldg_num_map
[ldg_rotor
],
6896 if (ldg_rotor
== np
->num_ldg
)
6901 for (i
= 0; i
< port
; i
++)
6902 first_chan
+= parent
->txchan_per_port
[port
];
6903 num_chan
= parent
->txchan_per_port
[port
];
6904 for (i
= first_chan
; i
< (first_chan
+ num_chan
); i
++) {
6905 err
= niu_ldg_assign_ldn(np
, parent
,
6906 ldg_num_map
[ldg_rotor
],
6911 if (ldg_rotor
== np
->num_ldg
)
6918 static void __devexit
niu_ldg_free(struct niu
*np
)
6920 if (np
->flags
& NIU_FLAGS_MSIX
)
6921 pci_disable_msix(np
->pdev
);
6924 static int __devinit
niu_get_of_props(struct niu
*np
)
6926 #ifdef CONFIG_SPARC64
6927 struct net_device
*dev
= np
->dev
;
6928 struct device_node
*dp
;
6929 const char *phy_type
;
6933 if (np
->parent
->plat_type
== PLAT_TYPE_NIU
)
6936 dp
= pci_device_to_OF_node(np
->pdev
);
6938 phy_type
= of_get_property(dp
, "phy-type", &prop_len
);
6940 dev_err(np
->device
, PFX
"%s: OF node lacks "
6941 "phy-type property\n",
6946 if (!strcmp(phy_type
, "none"))
6949 strcpy(np
->vpd
.phy_type
, phy_type
);
6951 if (niu_phy_type_prop_decode(np
, np
->vpd
.phy_type
)) {
6952 dev_err(np
->device
, PFX
"%s: Illegal phy string [%s].\n",
6953 dp
->full_name
, np
->vpd
.phy_type
);
6957 mac_addr
= of_get_property(dp
, "local-mac-address", &prop_len
);
6959 dev_err(np
->device
, PFX
"%s: OF node lacks "
6960 "local-mac-address property\n",
6964 if (prop_len
!= dev
->addr_len
) {
6965 dev_err(np
->device
, PFX
"%s: OF MAC address prop len (%d) "
6967 dp
->full_name
, prop_len
);
6969 memcpy(dev
->perm_addr
, mac_addr
, dev
->addr_len
);
6970 if (!is_valid_ether_addr(&dev
->perm_addr
[0])) {
6973 dev_err(np
->device
, PFX
"%s: OF MAC address is invalid\n",
6975 dev_err(np
->device
, PFX
"%s: [ \n",
6977 for (i
= 0; i
< 6; i
++)
6978 printk("%02x ", dev
->perm_addr
[i
]);
6983 memcpy(dev
->dev_addr
, dev
->perm_addr
, dev
->addr_len
);
6991 static int __devinit
niu_get_invariants(struct niu
*np
)
6993 int err
, have_props
;
6996 err
= niu_get_of_props(np
);
7002 err
= niu_get_and_validate_port(np
);
7006 err
= niu_init_mac_ipp_pcs_base(np
);
7011 if (np
->parent
->plat_type
== PLAT_TYPE_NIU
)
7014 nw64(ESPC_PIO_EN
, ESPC_PIO_EN_ENABLE
);
7015 offset
= niu_pci_vpd_offset(np
);
7016 niudbg(PROBE
, "niu_get_invariants: VPD offset [%08x]\n",
7019 niu_pci_vpd_fetch(np
, offset
);
7020 nw64(ESPC_PIO_EN
, 0);
7022 if (np
->flags
& NIU_FLAGS_VPD_VALID
)
7023 niu_pci_vpd_validate(np
);
7025 if (!(np
->flags
& NIU_FLAGS_VPD_VALID
)) {
7026 err
= niu_pci_probe_sprom(np
);
7032 err
= niu_probe_ports(np
);
7038 niu_classifier_swstate_init(np
);
7039 niu_link_config_init(np
);
7041 err
= niu_determine_phy_disposition(np
);
7043 err
= niu_init_link(np
);
7048 static LIST_HEAD(niu_parent_list
);
7049 static DEFINE_MUTEX(niu_parent_lock
);
7050 static int niu_parent_index
;
7052 static ssize_t
show_port_phy(struct device
*dev
,
7053 struct device_attribute
*attr
, char *buf
)
7055 struct platform_device
*plat_dev
= to_platform_device(dev
);
7056 struct niu_parent
*p
= plat_dev
->dev
.platform_data
;
7057 u32 port_phy
= p
->port_phy
;
7058 char *orig_buf
= buf
;
7061 if (port_phy
== PORT_PHY_UNKNOWN
||
7062 port_phy
== PORT_PHY_INVALID
)
7065 for (i
= 0; i
< p
->num_ports
; i
++) {
7066 const char *type_str
;
7069 type
= phy_decode(port_phy
, i
);
7070 if (type
== PORT_TYPE_10G
)
7075 (i
== 0) ? "%s" : " %s",
7078 buf
+= sprintf(buf
, "\n");
7079 return buf
- orig_buf
;
7082 static ssize_t
show_plat_type(struct device
*dev
,
7083 struct device_attribute
*attr
, char *buf
)
7085 struct platform_device
*plat_dev
= to_platform_device(dev
);
7086 struct niu_parent
*p
= plat_dev
->dev
.platform_data
;
7087 const char *type_str
;
7089 switch (p
->plat_type
) {
7090 case PLAT_TYPE_ATLAS
:
7096 case PLAT_TYPE_VF_P0
:
7099 case PLAT_TYPE_VF_P1
:
7103 type_str
= "unknown";
7107 return sprintf(buf
, "%s\n", type_str
);
7110 static ssize_t
__show_chan_per_port(struct device
*dev
,
7111 struct device_attribute
*attr
, char *buf
,
7114 struct platform_device
*plat_dev
= to_platform_device(dev
);
7115 struct niu_parent
*p
= plat_dev
->dev
.platform_data
;
7116 char *orig_buf
= buf
;
7120 arr
= (rx
? p
->rxchan_per_port
: p
->txchan_per_port
);
7122 for (i
= 0; i
< p
->num_ports
; i
++) {
7124 (i
== 0) ? "%d" : " %d",
7127 buf
+= sprintf(buf
, "\n");
7129 return buf
- orig_buf
;
7132 static ssize_t
show_rxchan_per_port(struct device
*dev
,
7133 struct device_attribute
*attr
, char *buf
)
7135 return __show_chan_per_port(dev
, attr
, buf
, 1);
7138 static ssize_t
show_txchan_per_port(struct device
*dev
,
7139 struct device_attribute
*attr
, char *buf
)
7141 return __show_chan_per_port(dev
, attr
, buf
, 1);
7144 static ssize_t
show_num_ports(struct device
*dev
,
7145 struct device_attribute
*attr
, char *buf
)
7147 struct platform_device
*plat_dev
= to_platform_device(dev
);
7148 struct niu_parent
*p
= plat_dev
->dev
.platform_data
;
7150 return sprintf(buf
, "%d\n", p
->num_ports
);
7153 static struct device_attribute niu_parent_attributes
[] = {
7154 __ATTR(port_phy
, S_IRUGO
, show_port_phy
, NULL
),
7155 __ATTR(plat_type
, S_IRUGO
, show_plat_type
, NULL
),
7156 __ATTR(rxchan_per_port
, S_IRUGO
, show_rxchan_per_port
, NULL
),
7157 __ATTR(txchan_per_port
, S_IRUGO
, show_txchan_per_port
, NULL
),
7158 __ATTR(num_ports
, S_IRUGO
, show_num_ports
, NULL
),
7162 static struct niu_parent
* __devinit
niu_new_parent(struct niu
*np
,
7163 union niu_parent_id
*id
,
7166 struct platform_device
*plat_dev
;
7167 struct niu_parent
*p
;
7170 niudbg(PROBE
, "niu_new_parent: Creating new parent.\n");
7172 plat_dev
= platform_device_register_simple("niu", niu_parent_index
,
7177 for (i
= 0; attr_name(niu_parent_attributes
[i
]); i
++) {
7178 int err
= device_create_file(&plat_dev
->dev
,
7179 &niu_parent_attributes
[i
]);
7181 goto fail_unregister
;
7184 p
= kzalloc(sizeof(*p
), GFP_KERNEL
);
7186 goto fail_unregister
;
7188 p
->index
= niu_parent_index
++;
7190 plat_dev
->dev
.platform_data
= p
;
7191 p
->plat_dev
= plat_dev
;
7193 memcpy(&p
->id
, id
, sizeof(*id
));
7194 p
->plat_type
= ptype
;
7195 INIT_LIST_HEAD(&p
->list
);
7196 atomic_set(&p
->refcnt
, 0);
7197 list_add(&p
->list
, &niu_parent_list
);
7198 spin_lock_init(&p
->lock
);
7200 p
->rxdma_clock_divider
= 7500;
7202 p
->tcam_num_entries
= NIU_PCI_TCAM_ENTRIES
;
7203 if (p
->plat_type
== PLAT_TYPE_NIU
)
7204 p
->tcam_num_entries
= NIU_NONPCI_TCAM_ENTRIES
;
7206 for (i
= CLASS_CODE_USER_PROG1
; i
<= CLASS_CODE_SCTP_IPV6
; i
++) {
7207 int index
= i
- CLASS_CODE_USER_PROG1
;
7209 p
->tcam_key
[index
] = TCAM_KEY_TSEL
;
7210 p
->flow_key
[index
] = (FLOW_KEY_IPSA
|
7213 (FLOW_KEY_L4_BYTE12
<<
7214 FLOW_KEY_L4_0_SHIFT
) |
7215 (FLOW_KEY_L4_BYTE12
<<
7216 FLOW_KEY_L4_1_SHIFT
));
7219 for (i
= 0; i
< LDN_MAX
+ 1; i
++)
7220 p
->ldg_map
[i
] = LDG_INVALID
;
7225 platform_device_unregister(plat_dev
);
7229 static struct niu_parent
* __devinit
niu_get_parent(struct niu
*np
,
7230 union niu_parent_id
*id
,
7233 struct niu_parent
*p
, *tmp
;
7234 int port
= np
->port
;
7236 niudbg(PROBE
, "niu_get_parent: platform_type[%u] port[%u]\n",
7239 mutex_lock(&niu_parent_lock
);
7241 list_for_each_entry(tmp
, &niu_parent_list
, list
) {
7242 if (!memcmp(id
, &tmp
->id
, sizeof(*id
))) {
7248 p
= niu_new_parent(np
, id
, ptype
);
7254 sprintf(port_name
, "port%d", port
);
7255 err
= sysfs_create_link(&p
->plat_dev
->dev
.kobj
,
7259 p
->ports
[port
] = np
;
7260 atomic_inc(&p
->refcnt
);
7263 mutex_unlock(&niu_parent_lock
);
7268 static void niu_put_parent(struct niu
*np
)
7270 struct niu_parent
*p
= np
->parent
;
7274 BUG_ON(!p
|| p
->ports
[port
] != np
);
7276 niudbg(PROBE
, "niu_put_parent: port[%u]\n", port
);
7278 sprintf(port_name
, "port%d", port
);
7280 mutex_lock(&niu_parent_lock
);
7282 sysfs_remove_link(&p
->plat_dev
->dev
.kobj
, port_name
);
7284 p
->ports
[port
] = NULL
;
7287 if (atomic_dec_and_test(&p
->refcnt
)) {
7289 platform_device_unregister(p
->plat_dev
);
7292 mutex_unlock(&niu_parent_lock
);
7295 static void *niu_pci_alloc_coherent(struct device
*dev
, size_t size
,
7296 u64
*handle
, gfp_t flag
)
7301 ret
= dma_alloc_coherent(dev
, size
, &dh
, flag
);
7307 static void niu_pci_free_coherent(struct device
*dev
, size_t size
,
7308 void *cpu_addr
, u64 handle
)
7310 dma_free_coherent(dev
, size
, cpu_addr
, handle
);
7313 static u64
niu_pci_map_page(struct device
*dev
, struct page
*page
,
7314 unsigned long offset
, size_t size
,
7315 enum dma_data_direction direction
)
7317 return dma_map_page(dev
, page
, offset
, size
, direction
);
7320 static void niu_pci_unmap_page(struct device
*dev
, u64 dma_address
,
7321 size_t size
, enum dma_data_direction direction
)
7323 return dma_unmap_page(dev
, dma_address
, size
, direction
);
7326 static u64
niu_pci_map_single(struct device
*dev
, void *cpu_addr
,
7328 enum dma_data_direction direction
)
7330 return dma_map_single(dev
, cpu_addr
, size
, direction
);
7333 static void niu_pci_unmap_single(struct device
*dev
, u64 dma_address
,
7335 enum dma_data_direction direction
)
7337 dma_unmap_single(dev
, dma_address
, size
, direction
);
7340 static const struct niu_ops niu_pci_ops
= {
7341 .alloc_coherent
= niu_pci_alloc_coherent
,
7342 .free_coherent
= niu_pci_free_coherent
,
7343 .map_page
= niu_pci_map_page
,
7344 .unmap_page
= niu_pci_unmap_page
,
7345 .map_single
= niu_pci_map_single
,
7346 .unmap_single
= niu_pci_unmap_single
,
7349 static void __devinit
niu_driver_version(void)
7351 static int niu_version_printed
;
7353 if (niu_version_printed
++ == 0)
7354 pr_info("%s", version
);
7357 static struct net_device
* __devinit
niu_alloc_and_init(
7358 struct device
*gen_dev
, struct pci_dev
*pdev
,
7359 struct of_device
*op
, const struct niu_ops
*ops
,
7362 struct net_device
*dev
= alloc_etherdev(sizeof(struct niu
));
7366 dev_err(gen_dev
, PFX
"Etherdev alloc failed, aborting.\n");
7370 SET_NETDEV_DEV(dev
, gen_dev
);
7372 np
= netdev_priv(dev
);
7376 np
->device
= gen_dev
;
7379 np
->msg_enable
= niu_debug
;
7381 spin_lock_init(&np
->lock
);
7382 INIT_WORK(&np
->reset_task
, niu_reset_task
);
7389 static void __devinit
niu_assign_netdev_ops(struct net_device
*dev
)
7391 dev
->open
= niu_open
;
7392 dev
->stop
= niu_close
;
7393 dev
->get_stats
= niu_get_stats
;
7394 dev
->set_multicast_list
= niu_set_rx_mode
;
7395 dev
->set_mac_address
= niu_set_mac_addr
;
7396 dev
->do_ioctl
= niu_ioctl
;
7397 dev
->tx_timeout
= niu_tx_timeout
;
7398 dev
->hard_start_xmit
= niu_start_xmit
;
7399 dev
->ethtool_ops
= &niu_ethtool_ops
;
7400 dev
->watchdog_timeo
= NIU_TX_TIMEOUT
;
7401 dev
->change_mtu
= niu_change_mtu
;
7404 static void __devinit
niu_device_announce(struct niu
*np
)
7406 struct net_device
*dev
= np
->dev
;
7409 pr_info("%s: NIU Ethernet ", dev
->name
);
7410 for (i
= 0; i
< 6; i
++)
7411 printk("%2.2x%c", dev
->dev_addr
[i
],
7412 i
== 5 ? '\n' : ':');
7414 pr_info("%s: Port type[%s] mode[%s:%s] XCVR[%s] phy[%s]\n",
7416 (np
->flags
& NIU_FLAGS_XMAC
? "XMAC" : "BMAC"),
7417 (np
->flags
& NIU_FLAGS_10G
? "10G" : "1G"),
7418 (np
->flags
& NIU_FLAGS_FIBER
? "FIBER" : "COPPER"),
7419 (np
->mac_xcvr
== MAC_XCVR_MII
? "MII" :
7420 (np
->mac_xcvr
== MAC_XCVR_PCS
? "PCS" : "XPCS")),
7424 static int __devinit
niu_pci_init_one(struct pci_dev
*pdev
,
7425 const struct pci_device_id
*ent
)
7427 unsigned long niureg_base
, niureg_len
;
7428 union niu_parent_id parent_id
;
7429 struct net_device
*dev
;
7435 niu_driver_version();
7437 err
= pci_enable_device(pdev
);
7439 dev_err(&pdev
->dev
, PFX
"Cannot enable PCI device, "
7444 if (!(pci_resource_flags(pdev
, 0) & IORESOURCE_MEM
) ||
7445 !(pci_resource_flags(pdev
, 2) & IORESOURCE_MEM
)) {
7446 dev_err(&pdev
->dev
, PFX
"Cannot find proper PCI device "
7447 "base addresses, aborting.\n");
7449 goto err_out_disable_pdev
;
7452 err
= pci_request_regions(pdev
, DRV_MODULE_NAME
);
7454 dev_err(&pdev
->dev
, PFX
"Cannot obtain PCI resources, "
7456 goto err_out_disable_pdev
;
7459 pos
= pci_find_capability(pdev
, PCI_CAP_ID_EXP
);
7461 dev_err(&pdev
->dev
, PFX
"Cannot find PCI Express capability, "
7463 goto err_out_free_res
;
7466 dev
= niu_alloc_and_init(&pdev
->dev
, pdev
, NULL
,
7467 &niu_pci_ops
, PCI_FUNC(pdev
->devfn
));
7470 goto err_out_free_res
;
7472 np
= netdev_priv(dev
);
7474 memset(&parent_id
, 0, sizeof(parent_id
));
7475 parent_id
.pci
.domain
= pci_domain_nr(pdev
->bus
);
7476 parent_id
.pci
.bus
= pdev
->bus
->number
;
7477 parent_id
.pci
.device
= PCI_SLOT(pdev
->devfn
);
7479 np
->parent
= niu_get_parent(np
, &parent_id
,
7483 goto err_out_free_dev
;
7486 pci_read_config_word(pdev
, pos
+ PCI_EXP_DEVCTL
, &val16
);
7487 val16
&= ~PCI_EXP_DEVCTL_NOSNOOP_EN
;
7488 val16
|= (PCI_EXP_DEVCTL_CERE
|
7489 PCI_EXP_DEVCTL_NFERE
|
7490 PCI_EXP_DEVCTL_FERE
|
7491 PCI_EXP_DEVCTL_URRE
|
7492 PCI_EXP_DEVCTL_RELAX_EN
);
7493 pci_write_config_word(pdev
, pos
+ PCI_EXP_DEVCTL
, val16
);
7495 dma_mask
= DMA_44BIT_MASK
;
7496 err
= pci_set_dma_mask(pdev
, dma_mask
);
7498 dev
->features
|= NETIF_F_HIGHDMA
;
7499 err
= pci_set_consistent_dma_mask(pdev
, dma_mask
);
7501 dev_err(&pdev
->dev
, PFX
"Unable to obtain 44 bit "
7502 "DMA for consistent allocations, "
7504 goto err_out_release_parent
;
7507 if (err
|| dma_mask
== DMA_32BIT_MASK
) {
7508 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
7510 dev_err(&pdev
->dev
, PFX
"No usable DMA configuration, "
7512 goto err_out_release_parent
;
7516 dev
->features
|= (NETIF_F_SG
| NETIF_F_HW_CSUM
);
7518 niureg_base
= pci_resource_start(pdev
, 0);
7519 niureg_len
= pci_resource_len(pdev
, 0);
7521 np
->regs
= ioremap_nocache(niureg_base
, niureg_len
);
7523 dev_err(&pdev
->dev
, PFX
"Cannot map device registers, "
7526 goto err_out_release_parent
;
7529 pci_set_master(pdev
);
7530 pci_save_state(pdev
);
7532 dev
->irq
= pdev
->irq
;
7534 niu_assign_netdev_ops(dev
);
7536 err
= niu_get_invariants(np
);
7539 dev_err(&pdev
->dev
, PFX
"Problem fetching invariants "
7540 "of chip, aborting.\n");
7541 goto err_out_iounmap
;
7544 err
= register_netdev(dev
);
7546 dev_err(&pdev
->dev
, PFX
"Cannot register net device, "
7548 goto err_out_iounmap
;
7551 pci_set_drvdata(pdev
, dev
);
7553 niu_device_announce(np
);
7563 err_out_release_parent
:
7570 pci_release_regions(pdev
);
7572 err_out_disable_pdev
:
7573 pci_disable_device(pdev
);
7574 pci_set_drvdata(pdev
, NULL
);
7579 static void __devexit
niu_pci_remove_one(struct pci_dev
*pdev
)
7581 struct net_device
*dev
= pci_get_drvdata(pdev
);
7584 struct niu
*np
= netdev_priv(dev
);
7586 unregister_netdev(dev
);
7597 pci_release_regions(pdev
);
7598 pci_disable_device(pdev
);
7599 pci_set_drvdata(pdev
, NULL
);
7603 static int niu_suspend(struct pci_dev
*pdev
, pm_message_t state
)
7605 struct net_device
*dev
= pci_get_drvdata(pdev
);
7606 struct niu
*np
= netdev_priv(dev
);
7607 unsigned long flags
;
7609 if (!netif_running(dev
))
7612 flush_scheduled_work();
7615 del_timer_sync(&np
->timer
);
7617 spin_lock_irqsave(&np
->lock
, flags
);
7618 niu_enable_interrupts(np
, 0);
7619 spin_unlock_irqrestore(&np
->lock
, flags
);
7621 netif_device_detach(dev
);
7623 spin_lock_irqsave(&np
->lock
, flags
);
7625 spin_unlock_irqrestore(&np
->lock
, flags
);
7627 pci_save_state(pdev
);
7632 static int niu_resume(struct pci_dev
*pdev
)
7634 struct net_device
*dev
= pci_get_drvdata(pdev
);
7635 struct niu
*np
= netdev_priv(dev
);
7636 unsigned long flags
;
7639 if (!netif_running(dev
))
7642 pci_restore_state(pdev
);
7644 netif_device_attach(dev
);
7646 spin_lock_irqsave(&np
->lock
, flags
);
7648 err
= niu_init_hw(np
);
7650 np
->timer
.expires
= jiffies
+ HZ
;
7651 add_timer(&np
->timer
);
7652 niu_netif_start(np
);
7655 spin_unlock_irqrestore(&np
->lock
, flags
);
7660 static struct pci_driver niu_pci_driver
= {
7661 .name
= DRV_MODULE_NAME
,
7662 .id_table
= niu_pci_tbl
,
7663 .probe
= niu_pci_init_one
,
7664 .remove
= __devexit_p(niu_pci_remove_one
),
7665 .suspend
= niu_suspend
,
7666 .resume
= niu_resume
,
7669 #ifdef CONFIG_SPARC64
7670 static void *niu_phys_alloc_coherent(struct device
*dev
, size_t size
,
7671 u64
*dma_addr
, gfp_t flag
)
7673 unsigned long order
= get_order(size
);
7674 unsigned long page
= __get_free_pages(flag
, order
);
7678 memset((char *)page
, 0, PAGE_SIZE
<< order
);
7679 *dma_addr
= __pa(page
);
7681 return (void *) page
;
7684 static void niu_phys_free_coherent(struct device
*dev
, size_t size
,
7685 void *cpu_addr
, u64 handle
)
7687 unsigned long order
= get_order(size
);
7689 free_pages((unsigned long) cpu_addr
, order
);
7692 static u64
niu_phys_map_page(struct device
*dev
, struct page
*page
,
7693 unsigned long offset
, size_t size
,
7694 enum dma_data_direction direction
)
7696 return page_to_phys(page
) + offset
;
7699 static void niu_phys_unmap_page(struct device
*dev
, u64 dma_address
,
7700 size_t size
, enum dma_data_direction direction
)
7702 /* Nothing to do. */
7705 static u64
niu_phys_map_single(struct device
*dev
, void *cpu_addr
,
7707 enum dma_data_direction direction
)
7709 return __pa(cpu_addr
);
7712 static void niu_phys_unmap_single(struct device
*dev
, u64 dma_address
,
7714 enum dma_data_direction direction
)
7716 /* Nothing to do. */
7719 static const struct niu_ops niu_phys_ops
= {
7720 .alloc_coherent
= niu_phys_alloc_coherent
,
7721 .free_coherent
= niu_phys_free_coherent
,
7722 .map_page
= niu_phys_map_page
,
7723 .unmap_page
= niu_phys_unmap_page
,
7724 .map_single
= niu_phys_map_single
,
7725 .unmap_single
= niu_phys_unmap_single
,
7728 static unsigned long res_size(struct resource
*r
)
7730 return r
->end
- r
->start
+ 1UL;
7733 static int __devinit
niu_of_probe(struct of_device
*op
,
7734 const struct of_device_id
*match
)
7736 union niu_parent_id parent_id
;
7737 struct net_device
*dev
;
7742 niu_driver_version();
7744 reg
= of_get_property(op
->node
, "reg", NULL
);
7746 dev_err(&op
->dev
, PFX
"%s: No 'reg' property, aborting.\n",
7747 op
->node
->full_name
);
7751 dev
= niu_alloc_and_init(&op
->dev
, NULL
, op
,
7752 &niu_phys_ops
, reg
[0] & 0x1);
7757 np
= netdev_priv(dev
);
7759 memset(&parent_id
, 0, sizeof(parent_id
));
7760 parent_id
.of
= of_get_parent(op
->node
);
7762 np
->parent
= niu_get_parent(np
, &parent_id
,
7766 goto err_out_free_dev
;
7769 dev
->features
|= (NETIF_F_SG
| NETIF_F_HW_CSUM
);
7771 np
->regs
= of_ioremap(&op
->resource
[1], 0,
7772 res_size(&op
->resource
[1]),
7775 dev_err(&op
->dev
, PFX
"Cannot map device registers, "
7778 goto err_out_release_parent
;
7781 np
->vir_regs_1
= of_ioremap(&op
->resource
[2], 0,
7782 res_size(&op
->resource
[2]),
7784 if (!np
->vir_regs_1
) {
7785 dev_err(&op
->dev
, PFX
"Cannot map device vir registers 1, "
7788 goto err_out_iounmap
;
7791 np
->vir_regs_2
= of_ioremap(&op
->resource
[3], 0,
7792 res_size(&op
->resource
[3]),
7794 if (!np
->vir_regs_2
) {
7795 dev_err(&op
->dev
, PFX
"Cannot map device vir registers 2, "
7798 goto err_out_iounmap
;
7801 niu_assign_netdev_ops(dev
);
7803 err
= niu_get_invariants(np
);
7806 dev_err(&op
->dev
, PFX
"Problem fetching invariants "
7807 "of chip, aborting.\n");
7808 goto err_out_iounmap
;
7811 err
= register_netdev(dev
);
7813 dev_err(&op
->dev
, PFX
"Cannot register net device, "
7815 goto err_out_iounmap
;
7818 dev_set_drvdata(&op
->dev
, dev
);
7820 niu_device_announce(np
);
7825 if (np
->vir_regs_1
) {
7826 of_iounmap(&op
->resource
[2], np
->vir_regs_1
,
7827 res_size(&op
->resource
[2]));
7828 np
->vir_regs_1
= NULL
;
7831 if (np
->vir_regs_2
) {
7832 of_iounmap(&op
->resource
[3], np
->vir_regs_2
,
7833 res_size(&op
->resource
[3]));
7834 np
->vir_regs_2
= NULL
;
7838 of_iounmap(&op
->resource
[1], np
->regs
,
7839 res_size(&op
->resource
[1]));
7843 err_out_release_parent
:
7853 static int __devexit
niu_of_remove(struct of_device
*op
)
7855 struct net_device
*dev
= dev_get_drvdata(&op
->dev
);
7858 struct niu
*np
= netdev_priv(dev
);
7860 unregister_netdev(dev
);
7862 if (np
->vir_regs_1
) {
7863 of_iounmap(&op
->resource
[2], np
->vir_regs_1
,
7864 res_size(&op
->resource
[2]));
7865 np
->vir_regs_1
= NULL
;
7868 if (np
->vir_regs_2
) {
7869 of_iounmap(&op
->resource
[3], np
->vir_regs_2
,
7870 res_size(&op
->resource
[3]));
7871 np
->vir_regs_2
= NULL
;
7875 of_iounmap(&op
->resource
[1], np
->regs
,
7876 res_size(&op
->resource
[1]));
7885 dev_set_drvdata(&op
->dev
, NULL
);
7890 static struct of_device_id niu_match
[] = {
7893 .compatible
= "SUNW,niusl",
7897 MODULE_DEVICE_TABLE(of
, niu_match
);
7899 static struct of_platform_driver niu_of_driver
= {
7901 .match_table
= niu_match
,
7902 .probe
= niu_of_probe
,
7903 .remove
= __devexit_p(niu_of_remove
),
7906 #endif /* CONFIG_SPARC64 */
7908 static int __init
niu_init(void)
7912 BUILD_BUG_ON(PAGE_SIZE
< 4 * 1024);
7914 niu_debug
= netif_msg_init(debug
, NIU_MSG_DEFAULT
);
7916 #ifdef CONFIG_SPARC64
7917 err
= of_register_driver(&niu_of_driver
, &of_bus_type
);
7921 err
= pci_register_driver(&niu_pci_driver
);
7922 #ifdef CONFIG_SPARC64
7924 of_unregister_driver(&niu_of_driver
);
7931 static void __exit
niu_exit(void)
7933 pci_unregister_driver(&niu_pci_driver
);
7934 #ifdef CONFIG_SPARC64
7935 of_unregister_driver(&niu_of_driver
);
7939 module_init(niu_init
);
7940 module_exit(niu_exit
);