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authorDon Wood <donald.e.wood@intel.com>2009-03-07 00:12:11 +0100
committerRoland Dreier <rolandd@cisco.com>2009-03-07 00:12:11 +0100
commitfd87778cb99429f5e2e041213a5c9c564bbe7b78 (patch)
tree23d5d0e4517a9fe0678989f1506f141d5cfb0277
parentRDMA/nes: Fix tmp_addr compilation warning (diff)
downloadlinux-fd87778cb99429f5e2e041213a5c9c564bbe7b78.tar.xz
linux-fd87778cb99429f5e2e041213a5c9c564bbe7b78.zip
RDMA/nes: Inform hardware that asynchronous event has been handled
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>
-rw-r--r--drivers/infiniband/hw/nes/nes_hw.c2
-rw-r--r--drivers/infiniband/hw/nes/nes_hw.h1
2 files changed, 3 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index 3a72a06f1df8..1c5e946ce226 100644
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -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;
diff --git a/drivers/infiniband/hw/nes/nes_hw.h b/drivers/infiniband/hw/nes/nes_hw.h
index 6f8712d7a2cc..bf7ecfa5f976 100644
--- a/drivers/infiniband/hw/nes/nes_hw.h
+++ b/drivers/infiniband/hw/nes/nes_hw.h
@@ -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 {