diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/tg3.c | 232 | ||||
| -rw-r--r-- | drivers/net/tg3.h | 46 |
2 files changed, 274 insertions, 4 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 3200c9c5ff5..5b6c1b286e9 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -314,6 +314,16 @@ static u32 tg3_read32(struct tg3 *tp, u32 off) return (readl(tp->regs + off)); } +static void tg3_ape_write32(struct tg3 *tp, u32 off, u32 val) +{ + writel(val, tp->aperegs + off); +} + +static u32 tg3_ape_read32(struct tg3 *tp, u32 off) +{ + return (readl(tp->aperegs + off)); +} + static void tg3_write_indirect_reg32(struct tg3 *tp, u32 off, u32 val) { unsigned long flags; @@ -500,6 +510,73 @@ static void tg3_read_mem(struct tg3 *tp, u32 off, u32 *val) spin_unlock_irqrestore(&tp->indirect_lock, flags); } +static void tg3_ape_lock_init(struct tg3 *tp) +{ + int i; + + /* Make sure the driver hasn't any stale locks. */ + for (i = 0; i < 8; i++) + tg3_ape_write32(tp, TG3_APE_LOCK_GRANT + 4 * i, + APE_LOCK_GRANT_DRIVER); +} + +static int tg3_ape_lock(struct tg3 *tp, int locknum) +{ + int i, off; + int ret = 0; + u32 status; + + if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) + return 0; + + switch (locknum) { + case TG3_APE_LOCK_MEM: + break; + default: + return -EINVAL; + } + + off = 4 * locknum; + + tg3_ape_write32(tp, TG3_APE_LOCK_REQ + off, APE_LOCK_REQ_DRIVER); + + /* Wait for up to 1 millisecond to acquire lock. */ + for (i = 0; i < 100; i++) { + status = tg3_ape_read32(tp, TG3_APE_LOCK_GRANT + off); + if (status == APE_LOCK_GRANT_DRIVER) + break; + udelay(10); + } + + if (status != APE_LOCK_GRANT_DRIVER) { + /* Revoke the lock request. */ + tg3_ape_write32(tp, TG3_APE_LOCK_GRANT + off, + APE_LOCK_GRANT_DRIVER); + + ret = -EBUSY; + } + + return ret; +} + +static void tg3_ape_unlock(struct tg3 *tp, int locknum) +{ + int off; + + if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) + return; + + switch (locknum) { + case TG3_APE_LOCK_MEM: + break; + default: + return; + } + + off = 4 * locknum; + tg3_ape_write32(tp, TG3_APE_LOCK_GRANT + off, APE_LOCK_GRANT_DRIVER); +} + static void tg3_disable_ints(struct tg3 *tp) { tw32(TG3PCI_MISC_HOST_CTRL, @@ -1448,7 +1525,8 @@ static int tg3_set_power_state(struct tg3 *tp, pci_power_t state) } if (!(tp->tg3_flags & TG3_FLAG_WOL_ENABLE) && - !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) + !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF) && + !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) tg3_power_down_phy(tp); tg3_frob_aux_power(tp); @@ -4726,6 +4804,80 @@ static void tg3_disable_nvram_access(struct tg3 *tp) } } +static void tg3_ape_send_event(struct tg3 *tp, u32 event) +{ + int i; + u32 apedata; + + apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG); + if (apedata != APE_SEG_SIG_MAGIC) + return; + + apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS); + if (apedata != APE_FW_STATUS_READY) + return; + + /* Wait for up to 1 millisecond for APE to service previous event. */ + for (i = 0; i < 10; i++) { + if (tg3_ape_lock(tp, TG3_APE_LOCK_MEM)) + return; + + apedata = tg3_ape_read32(tp, TG3_APE_EVENT_STATUS); + + if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING)) + tg3_ape_write32(tp, TG3_APE_EVENT_STATUS, + event | APE_EVENT_STATUS_EVENT_PENDING); + + tg3_ape_unlock(tp, TG3_APE_LOCK_MEM); + + if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING)) + break; + + udelay(100); + } + + if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING)) + tg3_ape_write32(tp, TG3_APE_EVENT, APE_EVENT_1); +} + +static void tg3_ape_driver_state_change(struct tg3 *tp, int kind) +{ + u32 event; + u32 apedata; + + if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) + return; + + switch (kind) { + case RESET_KIND_INIT: + tg3_ape_write32(tp, TG3_APE_HOST_SEG_SIG, + APE_HOST_SEG_SIG_MAGIC); + tg3_ape_write32(tp, TG3_APE_HOST_SEG_LEN, + APE_HOST_SEG_LEN_MAGIC); + apedata = tg3_ape_read32(tp, TG3_APE_HOST_INIT_COUNT); + tg3_ape_write32(tp, TG3_APE_HOST_INIT_COUNT, ++apedata); + tg3_ape_write32(tp, TG3_APE_HOST_DRIVER_ID, + APE_HOST_DRIVER_ID_MAGIC); + tg3_ape_write32(tp, TG3_APE_HOST_BEHAVIOR, + APE_HOST_BEHAV_NO_PHYLOCK); + + event = APE_EVENT_STATUS_STATE_START; + break; + case RESET_KIND_SHUTDOWN: + event = APE_EVENT_STATUS_STATE_UNLOAD; + break; + case RESET_KIND_SUSPEND: + event = APE_EVENT_STATUS_STATE_SUSPEND; + break; + default: + return; + } + + event |= APE_EVENT_STATUS_DRIVER_EVNT | APE_EVENT_STATUS_STATE_CHNGE; + + tg3_ape_send_event(tp, event); +} + /* tp->lock is held. */ static void tg3_write_sig_pre_reset(struct tg3 *tp, int kind) { @@ -4753,6 +4905,10 @@ static void tg3_write_sig_pre_reset(struct tg3 *tp, int kind) break; }; } + + if (kind == RESET_KIND_INIT || + kind == RESET_KIND_SUSPEND) + tg3_ape_driver_state_change(tp, kind); } /* tp->lock is held. */ @@ -4774,6 +4930,9 @@ static void tg3_write_sig_post_reset(struct tg3 *tp, int kind) break; }; } + + if (kind == RESET_KIND_SHUTDOWN) + tg3_ape_driver_state_change(tp, kind); } /* tp->lock is held. */ @@ -4864,6 +5023,10 @@ static void tg3_restore_pci_state(struct tg3 *tp) if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0 && (tp->tg3_flags & TG3_FLAG_PCIX_MODE)) val |= PCISTATE_RETRY_SAME_DMA; + /* Allow reads and writes to the APE register and memory space. */ + if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) + val |= PCISTATE_ALLOW_APE_CTLSPC_WR | + PCISTATE_ALLOW_APE_SHMEM_WR; pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE, val); pci_write_config_dword(tp->pdev, TG3PCI_COMMAND, tp->pci_cmd); @@ -5092,7 +5255,8 @@ static int tg3_chip_reset(struct tg3 *tp) /* tp->lock is held. */ static void tg3_stop_fw(struct tg3 *tp) { - if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) { + if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) && + !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) { u32 val; int i; @@ -6173,6 +6337,16 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy) tw32(TG3PCI_PCISTATE, val); } + if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) { + /* Allow reads and writes to the + * APE register and memory space. + */ + val = tr32(TG3PCI_PCISTATE); + val |= PCISTATE_ALLOW_APE_CTLSPC_WR | + PCISTATE_ALLOW_APE_SHMEM_WR; + tw32(TG3PCI_PCISTATE, val); + } + if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5704_BX) { /* Enable some hw fixes. */ val = tr32(TG3PCI_MSI_DATA); @@ -6780,6 +6954,10 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy) break; }; + /* Write our heartbeat update interval to APE. */ + tg3_ape_write32(tp, TG3_APE_HOST_HEARTBEAT_INT_MS, + APE_HOST_HEARTBEAT_INT_DISABLE); + tg3_write_sig_post_reset(tp, RESET_KIND_INIT); return 0; @@ -10302,6 +10480,8 @@ static void __devinit tg3_get_eeprom_hw_cfg(struct tg3 *tp) if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) tp->tg3_flags2 |= TG3_FLG2_ASF_NEW_HANDSHAKE; } + if (nic_cfg & NIC_SRAM_DATA_CFG_APE_ENABLE) + tp->tg3_flags3 |= TG3_FLG3_ENABLE_APE; if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES && !(nic_cfg & NIC_SRAM_DATA_CFG_FIBER_WOL)) tp->tg3_flags &= ~TG3_FLAG_WOL_CAP; @@ -10334,7 +10514,8 @@ static int __devinit tg3_phy_probe(struct tg3 *tp) * firwmare access to the PHY hardware. */ err = 0; - if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) { + if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) || + (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) { hw_phy_id = hw_phy_id_masked = PHY_ID_INVALID; } else { /* Now read the physical PHY_ID from the chip and verify @@ -10381,6 +10562,7 @@ static int __devinit tg3_phy_probe(struct tg3 *tp) } if (!(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES) && + !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) && !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) { u32 bmsr, adv_reg, tg3_ctrl, mask; @@ -10972,6 +11154,16 @@ static int __devinit tg3_get_invariants(struct tg3 *tp) */ tg3_get_eeprom_hw_cfg(tp); + if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) { + /* Allow reads and writes to the + * APE register and memory space. + */ + pci_state_reg |= PCISTATE_ALLOW_APE_CTLSPC_WR | + PCISTATE_ALLOW_APE_SHMEM_WR; + pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE, + pci_state_reg); + } + if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784) tp->tg3_flags |= TG3_FLAG_CPMU_PRESENT; @@ -12165,13 +12357,35 @@ static int __devinit tg3_init_one(struct pci_dev *pdev, tg3_init_coal(tp); + if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) { + if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) { + printk(KERN_ERR PFX "Cannot find proper PCI device " + "base address for APE, aborting.\n"); + err = -ENODEV; + goto err_out_iounmap; + } + + tg3reg_base = pci_resource_start(pdev, 2); + tg3reg_len = pci_resource_len(pdev, 2); + + tp->aperegs = ioremap_nocache(tg3reg_base, tg3reg_len); + if (tp->aperegs == 0UL) { + printk(KERN_ERR PFX "Cannot map APE registers, " + "aborting.\n"); + err = -ENOMEM; + goto err_out_iounmap; + } + + tg3_ape_lock_init(tp); + } + pci_set_drvdata(pdev, dev); err = register_netdev(dev); if (err) { printk(KERN_ERR PFX "Cannot register net device, " "aborting.\n"); - goto err_out_iounmap; + goto err_out_apeunmap; } printk(KERN_INFO "%s: Tigon3 [partno(%s) rev %04x PHY(%s)] (%s) %s Ethernet ", @@ -12204,6 +12418,12 @@ static int __devinit tg3_init_one(struct pci_dev *pdev, return 0; +err_out_apeunmap: + if (tp->aperegs) { + iounmap(tp->aperegs); + tp->aperegs = NULL; + } + err_out_iounmap: if (tp->regs) { iounmap(tp->regs); @@ -12231,6 +12451,10 @@ static void __devexit tg3_remove_one(struct pci_dev *pdev) flush_scheduled_work(); unregister_netdev(dev); + if (tp->aperegs) { + iounmap(tp->aperegs); + tp->aperegs = NULL; + } if (tp->regs) { iounmap(tp->regs); tp->regs = NULL; diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h index 88d08f3ede0..632c2f084c5 100644 --- a/drivers/net/tg3.h +++ b/drivers/net/tg3.h @@ -192,6 +192,8 @@ #define PCISTATE_ROM_RETRY_ENABLE 0x00000040 #define PCISTATE_FLAT_VIEW 0x00000100 #define PCISTATE_RETRY_SAME_DMA 0x00002000 +#define PCISTATE_ALLOW_APE_CTLSPC_WR 0x00010000 +#define PCISTATE_ALLOW_APE_SHMEM_WR 0x00020000 #define TG3PCI_CLOCK_CTRL 0x00000074 #define CLOCK_CTRL_CORECLK_DISABLE 0x00000200 #define CLOCK_CTRL_RXCLK_DISABLE 0x00000400 @@ -1560,6 +1562,7 @@ #define NIC_SRAM_DATA_CFG_MINI_PCI 0x00001000 #define NIC_SRAM_DATA_CFG_FIBER_WOL 0x00004000 #define NIC_SRAM_DATA_CFG_NO_GPIO2 0x00100000 +#define NIC_SRAM_DATA_CFG_APE_ENABLE 0x00200000 #define NIC_SRAM_DATA_VER 0x00000b5c #define NIC_SRAM_DATA_VER_SHIFT 16 @@ -1688,6 +1691,47 @@ #define MII_TG3_TEST1_TRIM_EN 0x0010 #define MII_TG3_TEST1_CRC_EN 0x8000 +/* APE registers. Accessible through BAR1 */ +#define TG3_APE_EVENT 0x000c +#define APE_EVENT_1 0x00000001 +#define TG3_APE_LOCK_REQ 0x002c +#define APE_LOCK_REQ_DRIVER 0x00001000 +#define TG3_APE_LOCK_GRANT 0x004c +#define APE_LOCK_GRANT_DRIVER 0x00001000 +#define TG3_APE_SEG_SIG 0x4000 +#define APE_SEG_SIG_MAGIC 0x41504521 + +/* APE shared memory. Accessible through BAR1 */ +#define TG3_APE_FW_STATUS 0x400c +#define APE_FW_STATUS_READY 0x00000100 +#define TG3_APE_HOST_SEG_SIG 0x4200 +#define APE_HOST_SEG_SIG_MAGIC 0x484f5354 +#define TG3_APE_HOST_SEG_LEN 0x4204 +#define APE_HOST_SEG_LEN_MAGIC 0x0000001c +#define TG3_APE_HOST_INIT_COUNT 0x4208 +#define TG3_APE_HOST_DRIVER_ID 0x420c +#define APE_HOST_DRIVER_ID_MAGIC 0xf0035100 +#define TG3_APE_HOST_BEHAVIOR 0x4210 +#define APE_HOST_BEHAV_NO_PHYLOCK 0x00000001 +#define TG3_APE_HOST_HEARTBEAT_INT_MS 0x4214 +#define APE_HOST_HEARTBEAT_INT_DISABLE 0 +#define APE_HOST_HEARTBEAT_INT_5SEC 5000 +#define TG3_APE_HOST_HEARTBEAT_COUNT 0x4218 + +#define TG3_APE_EVENT_STATUS 0x4300 + +#define APE_EVENT_STATUS_DRIVER_EVNT 0x00000010 +#define APE_EVENT_STATUS_STATE_CHNGE 0x00000500 +#define APE_EVENT_STATUS_STATE_START 0x00010000 +#define APE_EVENT_STATUS_STATE_UNLOAD 0x00020000 +#define APE_EVENT_STATUS_STATE_WOL 0x00030000 +#define APE_EVENT_STATUS_STATE_SUSPEND 0x00040000 +#define APE_EVENT_STATUS_EVENT_PENDING 0x80000000 + +/* APE convenience enumerations. */ +#define TG3_APE_LOCK_MEM 4 + + /* There are two ways to manage the TX descriptors on the tigon3. * Either the descriptors are in host DMA'able memory, or they * exist only in the cards on-chip SRAM. All 16 send bds are under @@ -2163,6 +2207,7 @@ struct tg3 { void (*write32_mbox) (struct tg3 *, u32, u32); void __iomem *regs; + void __iomem *aperegs; struct net_device *dev; struct pci_dev *pdev; @@ -2290,6 +2335,7 @@ struct tg3 { #define TG3_FLG2_PHY_ADJUST_TRIM 0x80000000 u32 tg3_flags3; #define TG3_FLG3_NO_NVRAM_ADDR_TRANS 0x00000001 +#define TG3_FLG3_ENABLE_APE 0x00000002 struct timer_list timer; u16 timer_counter; |