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be2net: do not use SCRATCHPAD register

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The CUST_SCRATCHPAD_CSR register is used for marking if FW cleanup is
needed. This is used in a crash kernel scenario. Do no use this register as
it is not available for some functions. Instead, always issue an FLR when
a function is probed *except* when VFs are preset (enabled in the previous
PF load).

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sathya Perla 2012-06-05 19:37:22 +00:00 committed by David S. Miller
parent 421737bdd5
commit d79c0a207a
2 changed files with 3 additions and 9 deletions
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2
drivers/net/ethernet/emulex/benet/be_hw.h
View File

@ -58,8 +58,6 @@
#define SLI_PORT_CONTROL_IP_MASK 0x08000000
#define PCICFG_CUST_SCRATCHPAD_CSR 0x1EC
/********* Memory BAR register ************/
#define PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET 0xfc
/* Host Interrupt Enable, if set interrupts are enabled although "PCI Interrupt

10
drivers/net/ethernet/emulex/benet/be_main.c
View File

@ -1049,6 +1049,8 @@ static int be_find_vfs(struct be_adapter *adapter, int vf_state)
u16 offset, stride;
pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
if (!pos)
return 0;
pci_read_config_word(pdev, pos + PCI_SRIOV_VF_OFFSET, &offset);
pci_read_config_word(pdev, pos + PCI_SRIOV_VF_STRIDE, &stride);
@ -2542,7 +2544,6 @@ static int be_clear(struct be_adapter *adapter)
be_cmd_fw_clean(adapter);
be_msix_disable(adapter);
pci_write_config_dword(adapter->pdev, PCICFG_CUST_SCRATCHPAD_CSR, 0);
return 0;
}
@ -2785,8 +2786,6 @@ static int be_setup(struct be_adapter *adapter)
schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
pci_write_config_dword(adapter->pdev, PCICFG_CUST_SCRATCHPAD_CSR, 1);
return 0;
err:
be_clear(adapter);
@ -3724,10 +3723,7 @@ reschedule:
static bool be_reset_required(struct be_adapter *adapter)
{
u32 reg;
pci_read_config_dword(adapter->pdev, PCICFG_CUST_SCRATCHPAD_CSR, &reg);
return reg;
return be_find_vfs(adapter, ENABLED) > 0 ? false : true;
}
static int __devinit be_probe(struct pci_dev *pdev,