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pds_core: add simple AER handler

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Set up the pci_error_handlers error_detected and resume to be
useful in handling AER events.

Reviewed-by: Brett Creeley <brett.creeley@amd.com>
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Shannon Nelson 2024-02-16 14:29:50 -08:00 committed by David S. Miller
parent 06d53b0346
commit d740f4be7c
1 changed files with 24 additions and 0 deletions
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24
drivers/net/ethernet/amd/pds_core/main.c
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@ -45,6 +45,7 @@ static void pdsc_unmap_bars(struct pdsc *pdsc)
for (i = 0; i < PDS_CORE_BARS_MAX; i++) {
if (bars[i].vaddr)
pci_iounmap(pdsc->pdev, bars[i].vaddr);
bars[i].vaddr = NULL;
}
}
@ -512,10 +513,33 @@ void pdsc_reset_done(struct pci_dev *pdev)
pdsc_restart_health_thread(pdsc);
}
static pci_ers_result_t pdsc_pci_error_detected(struct pci_dev *pdev,
pci_channel_state_t error)
{
if (error == pci_channel_io_frozen) {
pdsc_reset_prepare(pdev);
return PCI_ERS_RESULT_NEED_RESET;
}
return PCI_ERS_RESULT_NONE;
}
static void pdsc_pci_error_resume(struct pci_dev *pdev)
{
struct pdsc *pdsc = pci_get_drvdata(pdev);
if (test_bit(PDSC_S_FW_DEAD, &pdsc->state))
pci_reset_function_locked(pdev);
}
static const struct pci_error_handlers pdsc_err_handler = {
/* FLR handling */
.reset_prepare = pdsc_reset_prepare,
.reset_done = pdsc_reset_done,
/* AER handling */
.error_detected = pdsc_pci_error_detected,
.resume = pdsc_pci_error_resume,
};
static struct pci_driver pdsc_driver = {