UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

tg3: Improve PCI function number detection. 

Simplify the code to detect PCI function number on 5717, 5719, and 5720.
If shared memory does not have proper signature, read the function number
from register directly.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2013-01-06 12:51:09 +00:00 committed by David S. Miller
parent c86a8560e2
commit 857001f06f
1 changed files with 8 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/net/ethernet/broadcom/tg3.c
View File

@ -15441,22 +15441,19 @@ static int tg3_get_invariants(struct tg3 *tp, const struct pci_device_id *ent)
&val);
tp->pci_fn = val & 0x7;
}
} else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717) {
tg3_read_mem(tp, NIC_SRAM_CPMU_STATUS, &val);
if ((val & NIC_SRAM_CPMUSTAT_SIG_MSK) ==
NIC_SRAM_CPMUSTAT_SIG) {
tp->pci_fn = val & TG3_CPMU_STATUS_FMSK_5717;
tp->pci_fn = tp->pci_fn ? 1 : 0;
}
} else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 ||
} else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5720) {
tg3_read_mem(tp, NIC_SRAM_CPMU_STATUS, &val);
if ((val & NIC_SRAM_CPMUSTAT_SIG_MSK) ==
NIC_SRAM_CPMUSTAT_SIG) {
if ((val & NIC_SRAM_CPMUSTAT_SIG_MSK) != NIC_SRAM_CPMUSTAT_SIG)
val = tr32(TG3_CPMU_STATUS);
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717)
tp->pci_fn = (val & TG3_CPMU_STATUS_FMSK_5717) ? 1 : 0;
else
tp->pci_fn = (val & TG3_CPMU_STATUS_FMSK_5719) >>
TG3_CPMU_STATUS_FSHFT_5719;
}
}
/* Get eeprom hw config before calling tg3_set_power_state().
* In particular, the TG3_FLAG_IS_NIC flag must be