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author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-07 12:23:31 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-07 12:23:31 -0700 |
commit | 9fa0853a85a3a4067e4ad0aaa5d90984c2dd21b5 (patch) | |
tree | ac90f6535bc053b3859dc050cbbd577a0a1ef95b /drivers/net | |
parent | ef93127e4c7b4b8d46421045641048397eaac43d (diff) | |
parent | cf4328cd949c2086091c62c5685f1580fe9b55e4 (diff) | |
download | op-kernel-dev-9fa0853a85a3a4067e4ad0aaa5d90984c2dd21b5.zip op-kernel-dev-9fa0853a85a3a4067e4ad0aaa5d90984c2dd21b5.tar.gz |
Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[NET]: rfkill: add support for input key to control wireless radio
[NET] net/core: Fix error handling
[TG3]: Update version and reldate.
[TG3]: Eliminate spurious interrupts.
[TG3]: Add ASPM workaround.
[Bluetooth] Correct SCO buffer for another Broadcom based dongle
[Bluetooth] Add support for Targus ACB10US USB dongle
[Bluetooth] Disconnect L2CAP connection after last RFCOMM DLC
[Bluetooth] Check that device is in rfcomm_dev_list before deleting
[Bluetooth] Use in-kernel sockets API
[Bluetooth] Attach host adapters to the Bluetooth bus
[Bluetooth] Fix L2CAP and HCI setsockopt() information leaks
Diffstat (limited to 'drivers/net')
-rw-r--r-- | drivers/net/tg3.c | 40 | ||||
-rw-r--r-- | drivers/net/tg3.h | 10 |
2 files changed, 46 insertions, 4 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 59d6e74..e5e901e 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -64,8 +64,8 @@ #define DRV_MODULE_NAME "tg3" #define PFX DRV_MODULE_NAME ": " -#define DRV_MODULE_VERSION "3.75" -#define DRV_MODULE_RELDATE "March 23, 2007" +#define DRV_MODULE_VERSION "3.76" +#define DRV_MODULE_RELDATE "May 5, 2007" #define TG3_DEF_MAC_MODE 0 #define TG3_DEF_RX_MODE 0 @@ -3019,6 +3019,16 @@ static int tg3_setup_phy(struct tg3 *tp, int force_reset) } } + if (tp->tg3_flags & TG3_FLAG_ASPM_WORKAROUND) { + u32 val = tr32(PCIE_PWR_MGMT_THRESH); + if (!netif_carrier_ok(tp->dev)) + val = (val & ~PCIE_PWR_MGMT_L1_THRESH_MSK) | + tp->pwrmgmt_thresh; + else + val |= PCIE_PWR_MGMT_L1_THRESH_MSK; + tw32(PCIE_PWR_MGMT_THRESH, val); + } + return err; } @@ -3580,8 +3590,12 @@ static irqreturn_t tg3_interrupt(int irq, void *dev_id) * Writing non-zero to intr-mbox-0 additional tells the * NIC to stop sending us irqs, engaging "in-intr-handler" * event coalescing. + * + * Flush the mailbox to de-assert the IRQ immediately to prevent + * spurious interrupts. The flush impacts performance but + * excessive spurious interrupts can be worse in some cases. */ - tw32_mailbox(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001); + tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001); if (tg3_irq_sync(tp)) goto out; sblk->status &= ~SD_STATUS_UPDATED; @@ -3625,8 +3639,12 @@ static irqreturn_t tg3_interrupt_tagged(int irq, void *dev_id) * writing non-zero to intr-mbox-0 additional tells the * NIC to stop sending us irqs, engaging "in-intr-handler" * event coalescing. + * + * Flush the mailbox to de-assert the IRQ immediately to prevent + * spurious interrupts. The flush impacts performance but + * excessive spurious interrupts can be worse in some cases. */ - tw32_mailbox(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001); + tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001); if (tg3_irq_sync(tp)) goto out; if (netif_rx_schedule_prep(dev)) { @@ -10004,6 +10022,8 @@ static void __devinit tg3_get_eeprom_hw_cfg(struct tg3 *tp) tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT; tp->tg3_flags2 |= TG3_FLG2_IS_NIC; } + if (tr32(VCPU_CFGSHDW) & VCPU_CFGSHDW_ASPM_DBNC) + tp->tg3_flags |= TG3_FLAG_ASPM_WORKAROUND; return; } @@ -10131,6 +10151,14 @@ static void __devinit tg3_get_eeprom_hw_cfg(struct tg3 *tp) /* bootcode if bit 18 is set */ if (cfg2 & (1 << 18)) tp->tg3_flags2 |= TG3_FLG2_SERDES_PREEMPHASIS; + + if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) { + u32 cfg3; + + tg3_read_mem(tp, NIC_SRAM_DATA_CFG_3, &cfg3); + if (cfg3 & NIC_SRAM_ASPM_DEBOUNCE) + tp->tg3_flags |= TG3_FLAG_ASPM_WORKAROUND; + } } } @@ -10998,6 +11026,10 @@ static int __devinit tg3_get_invariants(struct tg3 *tp) */ tp->tg3_flags &= ~TG3_FLAG_WOL_ENABLE; + if (tp->tg3_flags & TG3_FLAG_ASPM_WORKAROUND) + tp->pwrmgmt_thresh = tr32(PCIE_PWR_MGMT_THRESH) & + PCIE_PWR_MGMT_L1_THRESH_MSK; + return err; } diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h index dcdfc08..4d334cf 100644 --- a/drivers/net/tg3.h +++ b/drivers/net/tg3.h @@ -1150,6 +1150,9 @@ #define VCPU_STATUS_INIT_DONE 0x04000000 #define VCPU_STATUS_DRV_RESET 0x08000000 +#define VCPU_CFGSHDW 0x00005104 +#define VCPU_CFGSHDW_ASPM_DBNC 0x00001000 + /* Mailboxes */ #define GRCMBOX_BASE 0x00005600 #define GRCMBOX_INTERRUPT_0 0x00005800 /* 64-bit */ @@ -1507,6 +1510,8 @@ #define PCIE_TRANS_CFG_1SHOT_MSI 0x20000000 #define PCIE_TRANS_CFG_LOM 0x00000020 +#define PCIE_PWR_MGMT_THRESH 0x00007d28 +#define PCIE_PWR_MGMT_L1_THRESH_MSK 0x0000ff00 #define TG3_EEPROM_MAGIC 0x669955aa #define TG3_EEPROM_MAGIC_FW 0xa5000000 @@ -1593,6 +1598,9 @@ #define SHASTA_EXT_LED_MAC 0x00010000 #define SHASTA_EXT_LED_COMBO 0x00018000 +#define NIC_SRAM_DATA_CFG_3 0x00000d3c +#define NIC_SRAM_ASPM_DEBOUNCE 0x00000002 + #define NIC_SRAM_RX_MINI_BUFFER_DESC 0x00001000 #define NIC_SRAM_DMA_DESC_POOL_BASE 0x00002000 @@ -2200,6 +2208,7 @@ struct tg3 { #define TG3_FLAG_USE_LINKCHG_REG 0x00000008 #define TG3_FLAG_USE_MI_INTERRUPT 0x00000010 #define TG3_FLAG_ENABLE_ASF 0x00000020 +#define TG3_FLAG_ASPM_WORKAROUND 0x00000040 #define TG3_FLAG_POLL_SERDES 0x00000080 #define TG3_FLAG_MBOX_WRITE_REORDER 0x00000100 #define TG3_FLAG_PCIX_TARGET_HWBUG 0x00000200 @@ -2288,6 +2297,7 @@ struct tg3 { u32 grc_local_ctrl; u32 dma_rwctrl; u32 coalesce_mode; + u32 pwrmgmt_thresh; /* PCI block */ u16 pci_chip_rev_id; |