Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S942122AbcJ0SB5 (ORCPT ); Thu, 27 Oct 2016 14:01:57 -0400 Received: from mail-lf0-f54.google.com ([209.85.215.54]:35856 "EHLO mail-lf0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934799AbcJ0SBw (ORCPT ); Thu, 27 Oct 2016 14:01:52 -0400 From: "=?UTF-8?q?Javier=20Gonz=C3=A1lez?=" X-Google-Original-From: =?UTF-8?q?Javier=20Gonz=C3=A1lez?= To: mb@lightnvm.io Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, =?UTF-8?q?Javier=20Gonz=C3=A1lez?= Subject: [PATCH 1/7] lightnvm: enable to send hint to erase command Date: Thu, 27 Oct 2016 20:01:33 +0200 Message-Id: <1477591299-26504-2-git-send-email-javier@cnexlabs.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1477591299-26504-1-git-send-email-javier@cnexlabs.com> References: <1477591299-26504-1-git-send-email-javier@cnexlabs.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5588 Lines: 142 Erases might be subject to host hints. An example is multi-plane programming to erase blocks in parallel. Enable targets to specify this hints. Signed-off-by: Javier González --- drivers/lightnvm/core.c | 9 ++++++--- drivers/lightnvm/gennvm.c | 5 ++--- drivers/lightnvm/rrpc.c | 2 +- drivers/lightnvm/sysblk.c | 4 ++-- drivers/nvme/host/lightnvm.c | 1 + include/linux/lightnvm.h | 7 +++---- 6 files changed, 15 insertions(+), 13 deletions(-) diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c index 1cac0f8..1a6a7e6 100644 --- a/drivers/lightnvm/core.c +++ b/drivers/lightnvm/core.c @@ -204,9 +204,9 @@ int nvm_submit_io(struct nvm_dev *dev, struct nvm_rq *rqd) } EXPORT_SYMBOL(nvm_submit_io); -int nvm_erase_blk(struct nvm_dev *dev, struct nvm_block *blk) +int nvm_erase_blk(struct nvm_dev *dev, struct nvm_block *blk, int flags) { - return dev->mt->erase_blk(dev, blk, 0); + return dev->mt->erase_blk(dev, blk, flags); } EXPORT_SYMBOL(nvm_erase_blk); @@ -287,7 +287,8 @@ void nvm_free_rqd_ppalist(struct nvm_dev *dev, struct nvm_rq *rqd) } EXPORT_SYMBOL(nvm_free_rqd_ppalist); -int nvm_erase_ppa(struct nvm_dev *dev, struct ppa_addr *ppas, int nr_ppas) +int nvm_erase_ppa(struct nvm_dev *dev, struct ppa_addr *ppas, int nr_ppas, + int flags) { struct nvm_rq rqd; int ret; @@ -303,6 +304,8 @@ int nvm_erase_ppa(struct nvm_dev *dev, struct ppa_addr *ppas, int nr_ppas) nvm_generic_to_addr_mode(dev, &rqd); + rqd.flags = flags; + ret = dev->ops->erase_block(dev, &rqd); nvm_free_rqd_ppalist(dev, &rqd); diff --git a/drivers/lightnvm/gennvm.c b/drivers/lightnvm/gennvm.c index b74174c..730d736 100644 --- a/drivers/lightnvm/gennvm.c +++ b/drivers/lightnvm/gennvm.c @@ -593,12 +593,11 @@ static int gen_submit_io(struct nvm_dev *dev, struct nvm_rq *rqd) return dev->ops->submit_io(dev, rqd); } -static int gen_erase_blk(struct nvm_dev *dev, struct nvm_block *blk, - unsigned long flags) +static int gen_erase_blk(struct nvm_dev *dev, struct nvm_block *blk, int flags) { struct ppa_addr addr = block_to_ppa(dev, blk); - return nvm_erase_ppa(dev, &addr, 1); + return nvm_erase_ppa(dev, &addr, 1, flags); } static int gen_reserve_lun(struct nvm_dev *dev, int lunid) diff --git a/drivers/lightnvm/rrpc.c b/drivers/lightnvm/rrpc.c index 37fcaad..067e890 100644 --- a/drivers/lightnvm/rrpc.c +++ b/drivers/lightnvm/rrpc.c @@ -404,7 +404,7 @@ static void rrpc_block_gc(struct work_struct *work) if (rrpc_move_valid_pages(rrpc, rblk)) goto put_back; - if (nvm_erase_blk(dev, rblk->parent)) + if (nvm_erase_blk(dev, rblk->parent, 0)) goto put_back; rrpc_put_blk(rrpc, rblk); diff --git a/drivers/lightnvm/sysblk.c b/drivers/lightnvm/sysblk.c index a75bd28..d229067 100644 --- a/drivers/lightnvm/sysblk.c +++ b/drivers/lightnvm/sysblk.c @@ -379,7 +379,7 @@ static int nvm_prepare_new_sysblks(struct nvm_dev *dev, struct sysblk_scan *s) ppa = &s->ppas[scan_ppa_idx(i, nxt_blk)]; ppa->g.pg = ppa_to_slc(dev, 0); - ret = nvm_erase_ppa(dev, ppa, 1); + ret = nvm_erase_ppa(dev, ppa, 1, 0); if (ret) return ret; @@ -725,7 +725,7 @@ int nvm_dev_factory(struct nvm_dev *dev, int flags) /* continue to erase until list of blks until empty */ while ((ppa_cnt = nvm_fact_get_blks(dev, ppas, max_ppas, blk_bitmap)) > 0) - nvm_erase_ppa(dev, ppas, ppa_cnt); + nvm_erase_ppa(dev, ppas, ppa_cnt, 0); /* mark host reserved blocks free */ if (flags & NVM_FACTORY_RESET_HOST_BLKS) { diff --git a/drivers/nvme/host/lightnvm.c b/drivers/nvme/host/lightnvm.c index f5e3011..9470d51 100644 --- a/drivers/nvme/host/lightnvm.c +++ b/drivers/nvme/host/lightnvm.c @@ -543,6 +543,7 @@ static int nvme_nvm_erase_block(struct nvm_dev *dev, struct nvm_rq *rqd) c.erase.nsid = cpu_to_le32(ns->ns_id); c.erase.spba = cpu_to_le64(rqd->ppa_addr.ppa); c.erase.length = cpu_to_le16(rqd->nr_ppas - 1); + c.erase.control = cpu_to_le16(rqd->flags); return nvme_submit_sync_cmd(q, (struct nvme_command *)&c, NULL, 0); } diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h index d190786..d7da953 100644 --- a/include/linux/lightnvm.h +++ b/include/linux/lightnvm.h @@ -472,8 +472,7 @@ typedef int (nvmm_open_blk_fn)(struct nvm_dev *, struct nvm_block *); typedef int (nvmm_close_blk_fn)(struct nvm_dev *, struct nvm_block *); typedef void (nvmm_flush_blk_fn)(struct nvm_dev *, struct nvm_block *); typedef int (nvmm_submit_io_fn)(struct nvm_dev *, struct nvm_rq *); -typedef int (nvmm_erase_blk_fn)(struct nvm_dev *, struct nvm_block *, - unsigned long); +typedef int (nvmm_erase_blk_fn)(struct nvm_dev *, struct nvm_block *, int); typedef void (nvmm_mark_blk_fn)(struct nvm_dev *, struct ppa_addr, int); typedef struct nvm_lun *(nvmm_get_lun_fn)(struct nvm_dev *, int); typedef int (nvmm_reserve_lun)(struct nvm_dev *, int); @@ -539,8 +538,8 @@ extern void nvm_addr_to_generic_mode(struct nvm_dev *, struct nvm_rq *); extern int nvm_set_rqd_ppalist(struct nvm_dev *, struct nvm_rq *, const struct ppa_addr *, int, int); extern void nvm_free_rqd_ppalist(struct nvm_dev *, struct nvm_rq *); -extern int nvm_erase_ppa(struct nvm_dev *, struct ppa_addr *, int); -extern int nvm_erase_blk(struct nvm_dev *, struct nvm_block *); +extern int nvm_erase_ppa(struct nvm_dev *, struct ppa_addr *, int, int); +extern int nvm_erase_blk(struct nvm_dev *, struct nvm_block *, int); extern void nvm_end_io(struct nvm_rq *, int); extern int nvm_submit_ppa(struct nvm_dev *, struct ppa_addr *, int, int, int, void *, int); -- 2.7.4