From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55723) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fXd2b-0001Ht-7f for qemu-devel@nongnu.org; Mon, 25 Jun 2018 21:45:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fXd2W-0001jI-NB for qemu-devel@nongnu.org; Mon, 25 Jun 2018 21:45:09 -0400 Received: from mx2.didichuxing.com ([36.110.17.22]:22630 helo=bsf01.didichuxing.com) by eggs.gnu.org with smtp (Exim 4.71) (envelope-from ) id 1fXd2W-0001ha-8X for qemu-devel@nongnu.org; Mon, 25 Jun 2018 21:45:04 -0400 Date: Tue, 26 Jun 2018 09:44:56 +0800 From: Weiping Zhang Message-ID: <20180626014452.GA1858@bogon.didichuxing.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Subject: [Qemu-devel] [Qemu-block][RFC PATCH] hw/block/nvme: add optional parameter num_queues for nvme device List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: keith.busch@intel.com Cc: qemu-block@nongnu.org, qemu-devel@nongnu.org Add an optional paramter num_queues for device, and set it to 64 by default. Signed-off-by: Weiping Zhang --- hw/block/nvme.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/hw/block/nvme.c b/hw/block/nvme.c index d5bf95b79b..156ecf3c41 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -18,7 +18,8 @@ * Usage: add options: * -drive file=,if=none,id= * -device nvme,drive=,serial=,id=, \ - * cmb_size_mb= + * cmb_size_mb=, \ + * num_queues= * * Note cmb_size_mb denotes size of CMB in MB. CMB is assumed to be at * offset 0 in BAR2 and supports only WDS, RDS and SQS for now. @@ -1232,7 +1233,6 @@ static void nvme_realize(PCIDevice *pci_dev, Error **errp) pcie_endpoint_cap_init(&n->parent_obj, 0x80); n->num_namespaces = 1; - n->num_queues = 64; n->reg_size = pow2ceil(0x1004 + 2 * (n->num_queues + 1) * 4); n->ns_size = bs_size / (uint64_t)n->num_namespaces; @@ -1341,6 +1341,7 @@ static Property nvme_props[] = { DEFINE_BLOCK_PROPERTIES(NvmeCtrl, conf), DEFINE_PROP_STRING("serial", NvmeCtrl, serial), DEFINE_PROP_UINT32("cmb_size_mb", NvmeCtrl, cmb_size_mb, 0), + DEFINE_PROP_UINT32("num_queues", NvmeCtrl, num_queues, 64), DEFINE_PROP_END_OF_LIST(), }; -- 2.14.1