Dan Williams wrote:
Separate sata_vsc interrupt handling into a normal (per-port) path and an error path with the addition of vsc_port_intr and vsc_error_intr respectively. The error path handles interrupt based hotplug events which requires the definition of vsc_freeze and vsc_thaw. Note: vsc_port_intr has a workaround for unexpected interrupts that occur during polled commands. This fixes a regression between 2.6.19 and 2.6.20. Changes in take2: * removed definition of invalid fis bit * let standard ata-error-handling handle the serror register * clear all unhandled interrupts * revert changes to vsc_intr_mask_update (vsc_thaw enables all interrupts) * use unlikely() for the pci-abort and not-our-interrupt cases in vsc_sata_interrupt Changes in take3: * Unify the "add" + "hook-up" patches into this single patch [htejun@xxxxxxxxx: clean up comments and suggestions] Cc: Jeremy Higdon <jeremy@xxxxxxx> Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx> --- drivers/ata/sata_vsc.c | 123 +++++++++++++++++++++++++++++------------------- 1 files changed, 74 insertions(+), 49 deletions(-)
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