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RDMA/nes: Inform hardware that asynchronous event has been handled

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When asynchronous events are processed by software, it is necessary
to let the hardware know that software has handled the event.  This
frees up the entry in the asynchronous event queue.

Signed-off-by: Don Wood <donald.e.wood@intel.com>
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Don Wood 2009-03-06 15:12:11 -08:00 committed by Roland Dreier
parent 7b14ab0b43
commit fd87778cb9
2 changed files with 3 additions and 0 deletions
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2
drivers/infiniband/hw/nes/nes_hw.c
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@ -2269,6 +2269,8 @@ static void nes_process_aeq(struct nes_device *nesdev, struct nes_hw_aeq *aeq)
if (++head >= aeq_size)
head = 0;
nes_write32(nesdev->regs + NES_AEQ_ALLOC, 1 << 16);
}
while (1);
aeq->aeq_head = head;

1
drivers/infiniband/hw/nes/nes_hw.h
View File

@ -61,6 +61,7 @@ enum pci_regs {
NES_CQ_ACK = 0x0034,
NES_WQE_ALLOC = 0x0040,
NES_CQE_ALLOC = 0x0044,
NES_AEQ_ALLOC = 0x0048
};
enum indexed_regs {