From b6d24eb663cdf4af9c08b37ad2e31056c5eb2561 Mon Sep 17 00:00:00 2001 From: Vasanthy Kolluri Date: Thu, 18 Mar 2010 16:19:49 +0000 Subject: [PATCH] enic: Bug Fix: Fix timeout for hardware Tx and Rx queue disable operations The timeout for hardware Tx and Rx queue disable operations is increased to work-around an erratum for "unnamed" chipset where a DMA completion may take upto 10ms. We have to wait atleast this long for hardware to signal that Tx and Rx queues are quiesced. Signed-off-by: Scott Feldman Signed-off-by: Vasanthy Kolluri Signed-off-by: Roopa Prabhu Signed-off-by: David S. Miller --- drivers/net/enic/vnic_rq.c | 4 ++-- drivers/net/enic/vnic_wq.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/enic/vnic_rq.c b/drivers/net/enic/vnic_rq.c index 75583978a5e5..7bcd90373487 100644 --- a/drivers/net/enic/vnic_rq.c +++ b/drivers/net/enic/vnic_rq.c @@ -167,10 +167,10 @@ int vnic_rq_disable(struct vnic_rq *rq) iowrite32(0, &rq->ctrl->enable); /* Wait for HW to ACK disable request */ - for (wait = 0; wait < 100; wait++) { + for (wait = 0; wait < 1000; wait++) { if (!(ioread32(&rq->ctrl->running))) return 0; - udelay(1); + udelay(10); } printk(KERN_ERR "Failed to disable RQ[%d]\n", rq->index); diff --git a/drivers/net/enic/vnic_wq.c b/drivers/net/enic/vnic_wq.c index d2e00e51b7b5..44fc3234d585 100644 --- a/drivers/net/enic/vnic_wq.c +++ b/drivers/net/enic/vnic_wq.c @@ -160,10 +160,10 @@ int vnic_wq_disable(struct vnic_wq *wq) iowrite32(0, &wq->ctrl->enable); /* Wait for HW to ACK disable request */ - for (wait = 0; wait < 100; wait++) { + for (wait = 0; wait < 1000; wait++) { if (!(ioread32(&wq->ctrl->running))) return 0; - udelay(1); + udelay(10); } printk(KERN_ERR "Failed to disable WQ[%d]\n", wq->index);