From: Don Wood Date: Fri, 6 Mar 2009 23:12:11 +0000 (-0800) Subject: RDMA/nes: Inform hardware that asynchronous event has been handled X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=fd87778cb99429f5e2e041213a5c9c564bbe7b78;p=linux-2.6-omap-h63xx.git 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 Signed-off-by: Chien Tung Signed-off-by: Roland Dreier --- diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c index 3a72a06f1df..1c5e946ce22 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 6f8712d7a2c..bf7ecfa5f97 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 {