Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752162AbbKVNx3 (ORCPT ); Sun, 22 Nov 2015 08:53:29 -0500 Received: from mail-pa0-f65.google.com ([209.85.220.65]:34880 "EHLO mail-pa0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751646AbbKVNx2 (ORCPT ); Sun, 22 Nov 2015 08:53:28 -0500 From: Wenwei Tao To: mb@lightnvm.io Cc: linux-kernel@vger.kernel.org Subject: [PATCH] lightnvm: calculate device values correctly Date: Sun, 22 Nov 2015 21:51:18 +0800 Message-Id: <1448200278-10272-1-git-send-email-ww.tao0320@gmail.com> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1777 Lines: 48 In the original calculation, the relationships among block, plane and lun was confusing, refine it on the basis of Open-channelSSDInterfaceSpecification. Signed-off-by: Wenwei Tao --- drivers/lightnvm/core.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c index f659e60..1864b94 100644 --- a/drivers/lightnvm/core.c +++ b/drivers/lightnvm/core.c @@ -174,8 +174,8 @@ static int nvm_core_init(struct nvm_dev *dev) dev->nr_chnls = grp->num_ch; dev->luns_per_chnl = grp->num_lun; dev->pgs_per_blk = grp->num_pg; - dev->blks_per_lun = grp->num_blk; dev->nr_planes = grp->num_pln; + dev->blks_per_lun = grp->num_blk * grp->num_pln; dev->sec_size = grp->csecs; dev->oob_size = grp->sos; dev->sec_per_pg = grp->fpg_sz / grp->csecs; @@ -191,13 +191,12 @@ static int nvm_core_init(struct nvm_dev *dev) dev->plane_mode = NVM_PLANE_QUAD; /* calculated values */ - dev->sec_per_pl = dev->sec_per_pg * dev->nr_planes; - dev->sec_per_blk = dev->sec_per_pl * dev->pgs_per_blk; + dev->sec_per_blk = dev->sec_per_pg * dev->pgs_per_blk; + dev->sec_per_pl = dev->sec_per_blk * grp->num_blk; dev->sec_per_lun = dev->sec_per_blk * dev->blks_per_lun; dev->nr_luns = dev->luns_per_chnl * dev->nr_chnls; - dev->total_blocks = dev->nr_planes * - dev->blks_per_lun * + dev->total_blocks = dev->blks_per_lun * dev->luns_per_chnl * dev->nr_chnls; dev->total_pages = dev->total_blocks * dev->pgs_per_blk; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/