diff options
| author | Shane Michael Matthews <shane.matthews@intel.com> | 2011-02-01 11:31:55 -0500 |
|---|---|---|
| committer | Matthew Wilcox <matthew.r.wilcox@intel.com> | 2011-11-04 15:52:54 -0400 |
| commit | 5911f20039ce59d7e7834f0c42151cf759b6f786 (patch) | |
| tree | 49dd439d64f4c5936ae72d5d1d3f3984ec69b118 /drivers/block/nvme.c | |
| parent | 574e8b95bc3780e10e9b5e9d51074d503dd3d5d9 (diff) | |
NVMe: Disable the device before we write the admin queues
In case the card has been left in a partially-configured state,
write 0 to the Enable bit.
Signed-off-by: Shane Michael Matthews <shane.matthews@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Diffstat (limited to 'drivers/block/nvme.c')
| -rw-r--r-- | drivers/block/nvme.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/block/nvme.c b/drivers/block/nvme.c index bda91178f47..e3d921577b9 100644 --- a/drivers/block/nvme.c +++ b/drivers/block/nvme.c @@ -668,6 +668,7 @@ static int __devinit nvme_configure_admin_queue(struct nvme_dev *dev) dev->ctrl_config |= (PAGE_SHIFT - 12) << NVME_CC_MPS_SHIFT; dev->ctrl_config |= NVME_CC_ARB_RR | NVME_CC_SHN_NONE; + writel(0, &dev->bar->cc); writel(aqa, &dev->bar->aqa); writeq(nvmeq->sq_dma_addr, &dev->bar->asq); writeq(nvmeq->cq_dma_addr, &dev->bar->acq); |