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| author | Jinjian Song <jinjian.song@fibocom.com> | 2024-08-17 16:33:55 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2024-08-21 12:57:24 +0100 |
| commit | d785ed945de6955361aafc2d540d9bb7c6a69a65 (patch) | |
| tree | 0b4f8bef7b52d025c66599f39b60e69404090a09 /drivers/net/ethernet/intel/ice/ice_parser.h | |
| parent | 4d36b2b1dea4ff528bd7d312d9c713a827656d75 (diff) | |
net: wwan: t7xx: PCIe reset rescan
WWAN device is programmed to boot in normal mode or fastboot mode,
when triggering a device reset through ACPI call or fastboot switch
command. Maintain state machine synchronization and reprobe logic
after a device reset.
The PCIe device reset triggered by several ways.
E.g.:
- fastboot: echo "fastboot_switching" > /sys/bus/pci/devices/${bdf}/t7xx_mode.
- reset: echo "reset" > /sys/bus/pci/devices/${bdf}/t7xx_mode.
- IRQ: PCIe device request driver to reset itself by an interrupt request.
Use pci_reset_function() as a generic way to reset device, save and
restore the PCIe configuration before and after reset device to ensure
the reprobe process.
Suggestion from Bjorn:
Link: https://lore.kernel.org/all/20230127133034.GA1364550@bhelgaas/
Signed-off-by: Jinjian Song <jinjian.song@fibocom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_parser.h')
0 files changed, 0 insertions, 0 deletions