From nobody Sun May 5 16:15:39 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1664444824; cv=none; d=zohomail.com; s=zohoarc; b=KXfeKI+Fx/5sCDlkButwPQWGeHc2lr2EoyE8QXcC1UAOpSQc4gdtYdPNpMbM4H/zW+Aw2M+8vm6k1Ntu3SlqoBVyitOMKwFfrP9Mmb6mkuvXLCLaMMeVEhNynRBQe9ySfr1dv51G2Gsx3Y9ztwMhCNWYz5Vm/LDXb1+Re+zywHM= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1664444824; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=8wLsUBWj3cXyIPNL/MTfRY4z3OxfsK5SyQJFUv1yLBk=; b=gqXHdv8pJHZJUgiLQGYAGkJ6RMc9gwPJkfVurtIY2Tf8kQ6tCdS4Wk5LJfTlaBcpUYDdLprRZPlfJPWXSTRpSQpRfcGLaNcPG77QbgMOZzX/30M0lyZU2eOpWxcP1FUrx8r3L9o/nQjNP22pbgHMsLdhWif7bZ9Edft2GFTROqA= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 166444482432758.58321529798934; Thu, 29 Sep 2022 02:47:04 -0700 (PDT) Received: from localhost ([::1]:56532 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1odq8D-0007qf-85 for importer@patchew.org; Thu, 29 Sep 2022 05:47:01 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57090) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1odptc-0007Bn-G1; Thu, 29 Sep 2022 05:31:59 -0400 Received: from mail-pj1-x1034.google.com ([2607:f8b0:4864:20::1034]:34356) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1odpta-0001ez-6D; Thu, 29 Sep 2022 05:31:56 -0400 Received: by mail-pj1-x1034.google.com with SMTP id a5-20020a17090aa50500b002008eeb040eso4911177pjq.1; Thu, 29 Sep 2022 02:31:53 -0700 (PDT) Received: from roots.. ([112.44.202.63]) by smtp.gmail.com with ESMTPSA id f4-20020a623804000000b0053e669cc845sm5570537pfa.190.2022.09.29.02.31.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Sep 2022 02:31:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date; bh=8wLsUBWj3cXyIPNL/MTfRY4z3OxfsK5SyQJFUv1yLBk=; b=kkf3pEt8RwkR33b4R16x0+gC8JUqkNV9/vY1GCawqF8sRKJb7bxpvHPTAdoDo3PZxh FAInbtJZdEYzYmQ91JounnKv8eDM8Vc7SX8ummY2jIz227YLL4WQoPqpmzDhEOI5b4Bx lEpyY01WlJd7+B9TX/4VWtzoqzLuUn6k5CpEOgCh0YQxYPiS46LNdUWlHuft8eq0OmCf SRob4wC5apyBTpdj8gd1jKrecIPmwREDLRj0llnWLIx+ug2AQvWSEa8nin4Pf/M43myb ySHPCQzCgbGcybLHYkcyNtq/VREnxMatW2oVGM64kMQs6zDoe1HAcyt39i3eS3iCYshx M7RA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date; bh=8wLsUBWj3cXyIPNL/MTfRY4z3OxfsK5SyQJFUv1yLBk=; b=uPtEI7q2Oi+17A+WLpwReqvj/gkI+N+GogQZvvSXOp9o6u6ga6zaCR0XVYgewyyjqR 2Cc0My73mKQHHHl98qOyr5dU/H/pt9Km1SJtSkg3u7y9FlMp9bszqkObTOIupPRQnouE CAooUr0hIN98eiTrpkRec4wzkD2fVmOiQWK3YPfztlr5YMgUyYdUP8zzHyHrsWNke4QB GYSXcoajgOi0xFIaE9xD3R/j+zkNFg8aVO3blkZAiPbRlXUSUScjUtOj91zLlJtjDVsk Z/mQariLj//Cu6EPZPb1qwljZud3M9NSBnFdQTteitMhWEc6KLe+y+OSlzeLr48GMLNi /9hQ== X-Gm-Message-State: ACrzQf1YOKzWFixGU3w8dVsosGbGUHjaXx27ADbM7Ay5OOCRuVb78uvZ 8MkUUtR+YIYkmt3xrm6ipqAvuKXGpHhdGw== X-Google-Smtp-Source: AMsMyM71ViMuY/UPmZ4nk4z8D/xtj7DoEgglBhbZ/yFgiFgVLNC/87nZmDjZLxVs8tLQrIT81wsNKA== X-Received: by 2002:a17:902:6542:b0:172:95d8:a777 with SMTP id d2-20020a170902654200b0017295d8a777mr2507573pln.61.1664443911835; Thu, 29 Sep 2022 02:31:51 -0700 (PDT) From: Sam Li To: qemu-devel@nongnu.org Cc: Hanna Reitz , damien.lemoal@opensource.wdc.com, Fam Zheng , stefanha@redhat.com, dmitry.fomichev@wdc.com, hare@suse.de, Kevin Wolf , qemu-block@nongnu.org, Sam Li Subject: [PATCH v2 1/2] file-posix: add the tracking of the zones wp Date: Thu, 29 Sep 2022 17:31:33 +0800 Message-Id: <20220929093134.73974-2-faithilikerun@gmail.com> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20220929093134.73974-1-faithilikerun@gmail.com> References: <20220929093134.73974-1-faithilikerun@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::1034; envelope-from=faithilikerun@gmail.com; helo=mail-pj1-x1034.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1664444830157100001 Content-Type: text/plain; charset="utf-8" Since Linux doesn't have a user API to issue zone append operations to zoned devices from user space, the file-posix driver is modified to add zone append emulation using regular writes. To do this, the file-posix driver tracks the wp location of all zones of the device. It uses an array of uint64_t. The most significant bit of each wp location indicates if the zone type is sequential write required. The zones wp can be changed due to the following operations issued: - zone reset: change the wp to the start offset of that zone - zone finish: change to the end location of that zone - write to a zone - zone append Signed-off-by: Sam Li --- block/file-posix.c | 138 ++++++++++++++++++++++++++++++- include/block/block-common.h | 16 ++++ include/block/block_int-common.h | 5 ++ include/block/raw-aio.h | 4 +- 4 files changed, 159 insertions(+), 4 deletions(-) diff --git a/block/file-posix.c b/block/file-posix.c index 73656d87f2..33e81ac112 100755 --- a/block/file-posix.c +++ b/block/file-posix.c @@ -206,6 +206,8 @@ typedef struct RawPosixAIOData { struct { struct iovec *iov; int niov; + int64_t *append_sector; + BlockZoneWps *wps; } io; struct { uint64_t cmd; @@ -1332,6 +1334,59 @@ static int hdev_get_max_segments(int fd, struct stat= *st) { #endif } =20 +#if defined(CONFIG_BLKZONED) +static int report_zone_wp(int64_t offset, int fd, BlockZoneWps *wps, + unsigned int nrz) { + struct blk_zone *blkz; + int64_t rep_size; + int64_t sector =3D offset >> BDRV_SECTOR_BITS; + int ret, n =3D 0, i =3D 0; + + rep_size =3D sizeof(struct blk_zone_report) + nrz * sizeof(struct blk_= zone); + g_autofree struct blk_zone_report *rep =3D NULL; + rep =3D g_malloc(rep_size); + + blkz =3D (struct blk_zone *)(rep + 1); + while (n < nrz) { + memset(rep, 0, rep_size); + rep->sector =3D sector; + rep->nr_zones =3D nrz - n; + + do { + ret =3D ioctl(fd, BLKREPORTZONE, rep); + } while (ret !=3D 0 && errno =3D=3D EINTR); + if (ret !=3D 0) { + error_report("%d: ioctl BLKREPORTZONE at %" PRId64 " failed %d= ", + fd, offset, errno); + return -errno; + } + + if (!rep->nr_zones) { + break; + } + + for (i =3D 0; i < rep->nr_zones; i++, n++) { + wps->wp[i] =3D blkz[i].wp << BDRV_SECTOR_BITS; + sector =3D blkz[i].start + blkz[i].len; + + /* + * In the wp tracking, it only cares if the zone type is seque= ntial + * writes required so that the wp can advance to the right loc= ation. + * Instead of the type of zone_type which is an 8-bit unsigned + * integer, use the first most significant bits of the wp loca= tion + * to indicate the zone type: 0 for SWR zones and 1 for the + * others. + */ + if (!(blkz[i].type & BLK_ZONE_TYPE_SEQWRITE_REQ)) { + wps->wp[i] +=3D (uint64_t)1 << 63; + } + } + } + + return 0; +} +#endif + static void raw_refresh_limits(BlockDriverState *bs, Error **errp) { BDRVRawState *s =3D bs->opaque; @@ -1415,6 +1470,20 @@ static void raw_refresh_limits(BlockDriverState *bs,= Error **errp) error_report("Invalid device capacity %" PRId64 " bytes ", bs-= >bl.capacity); return; } + + ret =3D get_sysfs_long_val(&st, "physical_block_size"); + if (ret >=3D 0) { + bs->bl.write_granularity =3D ret; + } + + bs->bl.wps =3D g_malloc(sizeof(BlockZoneWps) + sizeof(int64_t) * r= et); + qemu_mutex_init(&bs->bl.wps->lock); + if (report_zone_wp(0, s->fd, bs->bl.wps, ret) < 0 ) { + error_report("report wps failed"); + qemu_mutex_destroy(&bs->bl.wps->lock); + g_free(bs->bl.wps); + return; + } } } =20 @@ -1582,7 +1651,7 @@ static ssize_t handle_aiocb_rw_vector(RawPosixAIOData= *aiocb) ssize_t len; =20 do { - if (aiocb->aio_type & QEMU_AIO_WRITE) + if (aiocb->aio_type & (QEMU_AIO_WRITE | QEMU_AIO_ZONE_APPEND)) len =3D qemu_pwritev(aiocb->aio_fildes, aiocb->io.iov, aiocb->io.niov, @@ -1612,7 +1681,7 @@ static ssize_t handle_aiocb_rw_linear(RawPosixAIOData= *aiocb, char *buf) ssize_t len; =20 while (offset < aiocb->aio_nbytes) { - if (aiocb->aio_type & QEMU_AIO_WRITE) { + if (aiocb->aio_type & (QEMU_AIO_WRITE | QEMU_AIO_ZONE_APPEND)) { len =3D pwrite(aiocb->aio_fildes, (const char *)buf + offset, aiocb->aio_nbytes - offset, @@ -1705,7 +1774,7 @@ static int handle_aiocb_rw(void *opaque) } =20 nbytes =3D handle_aiocb_rw_linear(aiocb, buf); - if (!(aiocb->aio_type & QEMU_AIO_WRITE)) { + if (!(aiocb->aio_type & (QEMU_AIO_WRITE | QEMU_AIO_ZONE_APPEND))) { char *p =3D buf; size_t count =3D aiocb->aio_nbytes, copy; int i; @@ -1726,6 +1795,23 @@ static int handle_aiocb_rw(void *opaque) =20 out: if (nbytes =3D=3D aiocb->aio_nbytes) { +#if defined(CONFIG_BLKZONED) + if (aiocb->aio_type & (QEMU_AIO_WRITE | QEMU_AIO_ZONE_APPEND)) { + BlockZoneWps *wps =3D aiocb->io.wps; + int index =3D aiocb->aio_offset / aiocb->bs->bl.zone_size; + if (wps) { + if (BDRV_ZT_IS_SWR(wps->wp[index])) { + qemu_mutex_lock(&wps->lock); + wps->wp[index] +=3D aiocb->aio_nbytes; + qemu_mutex_unlock(&wps->lock); + } + + if (aiocb->aio_type & QEMU_AIO_ZONE_APPEND) { + *aiocb->io.append_sector =3D wps->wp[index] >> BDRV_SE= CTOR_BITS; + } + } + } +#endif return 0; } else if (nbytes >=3D 0 && nbytes < aiocb->aio_nbytes) { if (aiocb->aio_type & QEMU_AIO_WRITE) { @@ -1737,6 +1823,19 @@ out: } } else { assert(nbytes < 0); +#if defined(CONFIG_BLKZONED) + if (aiocb->aio_type =3D=3D QEMU_AIO_ZONE_APPEND) { + qemu_mutex_lock(&aiocb->bs->bl.wps->lock); + if (report_zone_wp(0, aiocb->aio_fildes, aiocb->bs->bl.wps, + aiocb->bs->bl.nr_zones) < 0) { + error_report("report zone wp failed"); + qemu_mutex_destroy(&aiocb->bs->bl.wps->lock); + g_free(aiocb->bs->bl.wps); + return -EINVAL; + } + qemu_mutex_unlock(&aiocb->bs->bl.wps->lock); + } +#endif return nbytes; } } @@ -2027,12 +2126,16 @@ static int handle_aiocb_zone_report(void *opaque) { static int handle_aiocb_zone_mgmt(void *opaque) { #if defined(CONFIG_BLKZONED) RawPosixAIOData *aiocb =3D opaque; + BlockDriverState *bs =3D aiocb->bs; int fd =3D aiocb->aio_fildes; int64_t sector =3D aiocb->aio_offset / 512; int64_t nr_sectors =3D aiocb->aio_nbytes / 512; struct blk_zone_range range; int ret; =20 + BlockZoneWps *wps =3D bs->bl.wps; + int index =3D aiocb->aio_offset / bs->bl.zone_size; + /* Execute the operation */ range.sector =3D sector; range.nr_sectors =3D nr_sectors; @@ -2045,6 +2148,22 @@ static int handle_aiocb_zone_mgmt(void *opaque) { errno); return -errno; } + =20 + if (aiocb->zone_mgmt.all) { + for (int i =3D 0; i < bs->bl.nr_zones; ++i) { + qemu_mutex_lock(&wps->lock); + wps->wp[i] =3D i * bs->bl.zone_size; + qemu_mutex_unlock(&wps->lock); + } + } else if (aiocb->zone_mgmt.zone_op =3D=3D BLKRESETZONE) { + qemu_mutex_lock(&wps->lock); + wps->wp[index] =3D aiocb->aio_offset; + qemu_mutex_unlock(&wps->lock); + } else if (aiocb->zone_mgmt.zone_op =3D=3D BLKFINISHZONE) { + qemu_mutex_lock(&wps->lock); + wps->wp[index] =3D aiocb->aio_offset + bs->bl.zone_size; + qemu_mutex_unlock(&wps->lock); + } return ret; #else return -ENOTSUP; @@ -2355,6 +2474,8 @@ static int coroutine_fn raw_co_prw(BlockDriverState *= bs, uint64_t offset, }, }; =20 + BlockZoneWps *wps =3D bs->bl.wps; + acb.io.wps =3D wps; assert(qiov->size =3D=3D bytes); return raw_thread_pool_submit(bs, handle_aiocb_rw, &acb); } @@ -2465,6 +2586,12 @@ static void raw_close(BlockDriverState *bs) BDRVRawState *s =3D bs->opaque; =20 if (s->fd >=3D 0) { +#if defined(CONFIG_BLKZONED) + if (bs->bl.wps) { + qemu_mutex_destroy(&bs->bl.wps->lock); + g_free(bs->bl.wps); + } +#endif qemu_close(s->fd); s->fd =3D -1; } @@ -3299,6 +3426,11 @@ static int coroutine_fn raw_co_zone_mgmt(BlockDriver= State *bs, BlockZoneOp op, zone_op_name =3D "BLKRESETZONE"; zone_op =3D BLKRESETZONE; break; + case BLK_ZO_RESET_ALL: + zone_op_name =3D "BLKRESETZONE"; + zone_op =3D BLKRESETZONE; + is_all =3D true; + break; default: g_assert_not_reached(); } diff --git a/include/block/block-common.h b/include/block/block-common.h index 8efb6b0c43..43bfc484eb 100644 --- a/include/block/block-common.h +++ b/include/block/block-common.h @@ -58,6 +58,7 @@ typedef enum BlockZoneOp { BLK_ZO_CLOSE, BLK_ZO_FINISH, BLK_ZO_RESET, + BLK_ZO_RESET_ALL, } BlockZoneOp; =20 typedef enum BlockZoneModel { @@ -96,6 +97,14 @@ typedef struct BlockZoneDescriptor { BlockZoneCondition cond; } BlockZoneDescriptor; =20 +/* + * Track write pointers of a zone in bytes. + */ +typedef struct BlockZoneWps { + QemuMutex lock; + uint64_t wp[]; +} BlockZoneWps; + typedef struct BlockDriverInfo { /* in bytes, 0 if irrelevant */ int cluster_size; @@ -209,6 +218,13 @@ typedef enum { #define BDRV_SECTOR_BITS 9 #define BDRV_SECTOR_SIZE (1ULL << BDRV_SECTOR_BITS) =20 +/* + * Get the first most significant bit of WP. If it is zero, then + * the zone type is SWR. + */ +#define BDRV_ZT_IS_SWR(WP) ((WP & 0x8000000000000000) =3D=3D 0) ? (true= ) : \ + (false) + #define BDRV_REQUEST_MAX_SECTORS MIN_CONST(SIZE_MAX >> BDRV_SECTOR_BITS, \ INT_MAX >> BDRV_SECTOR_BITS) #define BDRV_REQUEST_MAX_BYTES (BDRV_REQUEST_MAX_SECTORS << BDRV_SECTOR_BI= TS) diff --git a/include/block/block_int-common.h b/include/block/block_int-com= mon.h index 37dddc603c..59c2d1316d 100644 --- a/include/block/block_int-common.h +++ b/include/block/block_int-common.h @@ -857,6 +857,11 @@ typedef struct BlockLimits { =20 /* device capacity expressed in bytes */ int64_t capacity; + + /* array of write pointers' location of each zone in the zoned device.= */ + BlockZoneWps *wps; + + int64_t write_granularity; } BlockLimits; =20 typedef struct BdrvOpBlocker BdrvOpBlocker; diff --git a/include/block/raw-aio.h b/include/block/raw-aio.h index 3d26929cdd..f13cc1887b 100644 --- a/include/block/raw-aio.h +++ b/include/block/raw-aio.h @@ -31,6 +31,7 @@ #define QEMU_AIO_TRUNCATE 0x0080 #define QEMU_AIO_ZONE_REPORT 0x0100 #define QEMU_AIO_ZONE_MGMT 0x0200 +#define QEMU_AIO_ZONE_APPEND 0x0400 #define QEMU_AIO_TYPE_MASK \ (QEMU_AIO_READ | \ QEMU_AIO_WRITE | \ @@ -41,7 +42,8 @@ QEMU_AIO_COPY_RANGE | \ QEMU_AIO_TRUNCATE | \ QEMU_AIO_ZONE_REPORT | \ - QEMU_AIO_ZONE_MGMT) + QEMU_AIO_ZONE_MGMT | \ + QEMU_AIO_ZONE_APPEND) =20 /* AIO flags */ #define QEMU_AIO_MISALIGNED 0x1000 --=20 2.37.3 From nobody Sun May 5 16:15:39 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1664445786; cv=none; d=zohomail.com; s=zohoarc; b=YYhNA94rlEKm7oVmd4VFtTvcBj4Uuh/FQ1cAlaCDhWRJG0MTci9uSV3nJSP8A1R3ct3Ig3Vq2Mo99V9j+PDBUh8zpEG0V+121zI4QgQs2FqLtgZSfIluvIX4zqBRb9boOGhr3Pa6mz/GcRBdCM0RgaiTk25exKsYYTqS+6DPS2g= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1664445786; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=nS+fePgPb9l9LKYDgQQ1IG+bFtMMGO1bmW7YKgJvXrU=; b=cz85xC2DMcyAtTklCz95F4iOJD8dxKOW2WSd+RCUeoFh8YinxtBhuQaMBFfhLQza5diw+8mh8Ygu1P+g1wb3gTVslg7sQVUlQHZsE1gyOAe3+Em/Tz6tyBHkNHFuPiHuUjBpZyV51qH995PGKC/pHcJNXJ3+bfGOagB5G9LR/sU= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1664445786389584.401436310845; Thu, 29 Sep 2022 03:03:06 -0700 (PDT) Received: from localhost ([::1]:44000 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1odqNl-0007yw-A2 for importer@patchew.org; Thu, 29 Sep 2022 06:03:05 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57096) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1odpti-0007Cn-9S; Thu, 29 Sep 2022 05:32:03 -0400 Received: from mail-pl1-x62d.google.com ([2607:f8b0:4864:20::62d]:43666) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1odptf-0001fs-Sq; Thu, 29 Sep 2022 05:32:02 -0400 Received: by mail-pl1-x62d.google.com with SMTP id z20so764957plb.10; Thu, 29 Sep 2022 02:31:58 -0700 (PDT) Received: from roots.. ([112.44.202.63]) by smtp.gmail.com with ESMTPSA id f4-20020a623804000000b0053e669cc845sm5570537pfa.190.2022.09.29.02.31.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Sep 2022 02:31:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date; bh=nS+fePgPb9l9LKYDgQQ1IG+bFtMMGO1bmW7YKgJvXrU=; b=jGtvTKyjWjU4WCiMzCkOGESbVOZOv4GdYxnCicC6sumR5dpj7AN5gjiWmMf5ZuFYkj PXgZLKF4ncyFIzGOMr0Km6/l9BIFEjpEV/p77LemXIVTeqR/Ij3GSbkVLzz1aPp2sbhv A/TnvLZ5nQLvCVXJ/08ha9r5G8iMm4BgRctXBTN94TdI/YieKWi3DfjMotKyr9bMPkRP aIZfrfs17hzAnOEY6mINuIRyRNDIX3XjapbXrnu0Y8GmaGy+ADg3kt9zd2NkM5W5bhPw 3UPtj/PJtQl+wUq0O9jlgoFpr9qgz3XaB67fDX+rFS5gibGNy1+uDizmjNGWX6R4L2v6 zA8w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date; bh=nS+fePgPb9l9LKYDgQQ1IG+bFtMMGO1bmW7YKgJvXrU=; b=sEuRsdEDSrZj20t1obkuyB9n468V1Q8T8bj1PNo7rbubF3RWVzramJ6UD4sa15uyI5 JbwUYcjPmfhenht8W9q77NjqldYOi7yJ3nmt+FxblCaIhN2IvkX/voQe+a2+qsuQF1Ra H3Hr9rFQyzRUKospg81CRX0veNOAbaSMjYX3ubSBAxsHPzyxh7v7UY0PqOk3QCbUZlf7 ufDja0MOrljxIyogVhpf7OXvawFPfOalEosMCBSSzN4xtz9D+QrUFUqPOtjBPRgDhp/O oX7SNqYnRe1QeoebWrBB5Vxql1WvaBd7ftjjgWDiPW78fOYbeDlxoTHdsKU+UkcOsKMH MKpA== X-Gm-Message-State: ACrzQf1k2DWw5SAWoO+SXXxFNB23xQOEcsJa6mKT7QGRxThrZHT7KlAT aDX3Makfdd084k3HHRPSS784/IazJ6MfnQ== X-Google-Smtp-Source: AMsMyM734F3QOJo4QChNi/OBQEQ7O2arscDtJuGa4Lwcqekd+yM60SYwFNb4wAKaFZoaFZzyzaeSIg== X-Received: by 2002:a17:902:82c9:b0:17b:46e6:88d with SMTP id u9-20020a17090282c900b0017b46e6088dmr1548776plz.85.1664443917259; Thu, 29 Sep 2022 02:31:57 -0700 (PDT) From: Sam Li To: qemu-devel@nongnu.org Cc: Hanna Reitz , damien.lemoal@opensource.wdc.com, Fam Zheng , stefanha@redhat.com, dmitry.fomichev@wdc.com, hare@suse.de, Kevin Wolf , qemu-block@nongnu.org, Sam Li Subject: [PATCH v2 2/2] block: introduce zone append write for zoned devices Date: Thu, 29 Sep 2022 17:31:34 +0800 Message-Id: <20220929093134.73974-3-faithilikerun@gmail.com> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20220929093134.73974-1-faithilikerun@gmail.com> References: <20220929093134.73974-1-faithilikerun@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::62d; envelope-from=faithilikerun@gmail.com; helo=mail-pl1-x62d.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1664445793240100001 Content-Type: text/plain; charset="utf-8" A zone append command is a write operation that specifies the first logical block of a zone as the write position. When writing to a zoned block device using zone append, the byte offset of the write is pointing to the write pointer of that zone. Upon completion the device will respond with the position the data has been written in the zone. Signed-off-by: Sam Li --- block/block-backend.c | 65 ++++++++++++++++++++++++++++++ block/file-posix.c | 51 +++++++++++++++++++++++ block/io.c | 21 ++++++++++ block/raw-format.c | 7 ++++ include/block/block-io.h | 3 ++ include/block/block_int-common.h | 3 ++ include/sysemu/block-backend-io.h | 9 +++++ qemu-io-cmds.c | 62 ++++++++++++++++++++++++++++ tests/qemu-iotests/tests/zoned.out | 7 ++++ tests/qemu-iotests/tests/zoned.sh | 9 +++++ 10 files changed, 237 insertions(+) diff --git a/block/block-backend.c b/block/block-backend.c index f7f7acd6f4..07a8632af1 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -1439,6 +1439,9 @@ typedef struct BlkRwCo { struct { BlockZoneOp op; } zone_mgmt; + struct { + int64_t *append_sector; + } zone_append; }; } BlkRwCo; =20 @@ -1869,6 +1872,47 @@ BlockAIOCB *blk_aio_zone_mgmt(BlockBackend *blk, Blo= ckZoneOp op, return &acb->common; } =20 +static void blk_aio_zone_append_entry(void *opaque) { + BlkAioEmAIOCB *acb =3D opaque; + BlkRwCo *rwco =3D &acb->rwco; + + rwco->ret =3D blk_co_zone_append(rwco->blk, rwco->zone_append.append_s= ector, + rwco->iobuf, rwco->flags); + blk_aio_complete(acb); +} + +BlockAIOCB *blk_aio_zone_append(BlockBackend *blk, int64_t *offset, + QEMUIOVector *qiov, BdrvRequestFlags flags, + BlockCompletionFunc *cb, void *opaque) { + BlkAioEmAIOCB *acb; + Coroutine *co; + IO_CODE(); + + blk_inc_in_flight(blk); + acb =3D blk_aio_get(&blk_aio_em_aiocb_info, blk, cb, opaque); + acb->rwco =3D (BlkRwCo) { + .blk =3D blk, + .ret =3D NOT_DONE, + .flags =3D flags, + .iobuf =3D qiov, + .zone_append =3D { + .append_sector =3D offset, + }, + }; + acb->has_returned =3D false; + + co =3D qemu_coroutine_create(blk_aio_zone_append_entry, acb); + bdrv_coroutine_enter(blk_bs(blk), co); + + acb->has_returned =3D true; + if (acb->rwco.ret !=3D NOT_DONE) { + replay_bh_schedule_oneshot_event(blk_get_aio_context(blk), + blk_aio_complete_bh, acb); + } + + return &acb->common; +} + /* * Send a zone_report command. * offset is a byte offset from the start of the device. No alignment @@ -1921,6 +1965,27 @@ int coroutine_fn blk_co_zone_mgmt(BlockBackend *blk,= BlockZoneOp op, return ret; } =20 +/* + * Send a zone_append command. + */ +int coroutine_fn blk_co_zone_append(BlockBackend *blk, int64_t *offset, + QEMUIOVector *qiov, BdrvRequestFlags flags) +{ + int ret; + IO_CODE(); + + blk_inc_in_flight(blk); + blk_wait_while_drained(blk); + if (!blk_is_available(blk)) { + blk_dec_in_flight(blk); + return -ENOMEDIUM; + } + + ret =3D bdrv_co_zone_append(blk_bs(blk), offset, qiov, flags); + blk_dec_in_flight(blk); + return ret; +} + void blk_drain(BlockBackend *blk) { BlockDriverState *bs =3D blk_bs(blk); diff --git a/block/file-posix.c b/block/file-posix.c index 33e81ac112..24b70f1afe 100755 --- a/block/file-posix.c +++ b/block/file-posix.c @@ -3454,6 +3454,56 @@ static int coroutine_fn raw_co_zone_mgmt(BlockDriver= State *bs, BlockZoneOp op, #endif } =20 + +static int coroutine_fn raw_co_zone_append(BlockDriverState *bs, + int64_t *offset, + QEMUIOVector *qiov, + BdrvRequestFlags flags) { +#if defined(CONFIG_BLKZONED) + BDRVRawState *s =3D bs->opaque; + int64_t zone_size_mask =3D bs->bl.zone_size - 1; + int64_t iov_len =3D 0; + int64_t len =3D 0; + RawPosixAIOData acb; + + if (*offset & zone_size_mask) { + error_report("sector offset %" PRId64 " is not aligned to zone siz= e " + "%" PRId32 "", *offset / 512, bs->bl.zone_size / 512); + return -EINVAL; + } + + int64_t wg =3D bs->bl.write_granularity; + int64_t wg_mask =3D wg - 1; + for (int i =3D 0; i < qiov->niov; i++) { + iov_len =3D qiov->iov[i].iov_len; + if (iov_len & wg_mask) { + error_report("len of IOVector[%d] %" PRId64 " is not aligned to= block " + "size %" PRId64 "", i, iov_len, wg); + return -EINVAL; + } + len +=3D iov_len; + } + + acb =3D (RawPosixAIOData) { + .bs =3D bs, + .aio_fildes =3D s->fd, + .aio_type =3D QEMU_AIO_ZONE_APPEND, + .aio_offset =3D bs->bl.wps->wp[*offset / bs->bl.zone_size], + .aio_nbytes =3D len, + .io =3D { + .iov =3D qiov->iov, + .niov =3D qiov->niov, + .wps =3D bs->bl.wps, + .append_sector =3D offset, + }, + }; + + return raw_thread_pool_submit(bs, handle_aiocb_rw, &acb); +#else + return -ENOTSUP; +#endif +} + static coroutine_fn int raw_do_pdiscard(BlockDriverState *bs, int64_t offset, int64_t bytes, bool blkdev) @@ -4229,6 +4279,7 @@ static BlockDriver bdrv_zoned_host_device =3D { /* zone management operations */ .bdrv_co_zone_report =3D raw_co_zone_report, .bdrv_co_zone_mgmt =3D raw_co_zone_mgmt, + .bdrv_co_zone_append =3D raw_co_zone_append, }; #endif =20 diff --git a/block/io.c b/block/io.c index 5ab2d169c8..b9dfdf0709 100644 --- a/block/io.c +++ b/block/io.c @@ -3239,6 +3239,27 @@ out: return co.ret; } =20 +int coroutine_fn bdrv_co_zone_append(BlockDriverState *bs, int64_t *offset, + QEMUIOVector *qiov, + BdrvRequestFlags flags) +{ + BlockDriver *drv =3D bs->drv; + CoroutineIOCompletion co =3D { + .coroutine =3D qemu_coroutine_self(), + }; + IO_CODE(); + + bdrv_inc_in_flight(bs); + if (!drv || !drv->bdrv_co_zone_append) { + co.ret =3D -ENOTSUP; + goto out; + } + co.ret =3D drv->bdrv_co_zone_append(bs, offset, qiov, flags); +out: + bdrv_dec_in_flight(bs); + return co.ret; +} + void *qemu_blockalign(BlockDriverState *bs, size_t size) { IO_CODE(); diff --git a/block/raw-format.c b/block/raw-format.c index 9441536819..df8cc33467 100644 --- a/block/raw-format.c +++ b/block/raw-format.c @@ -325,6 +325,12 @@ static int coroutine_fn raw_co_zone_mgmt(BlockDriverSt= ate *bs, BlockZoneOp op, return bdrv_co_zone_mgmt(bs->file->bs, op, offset, len); } =20 +static int coroutine_fn raw_co_zone_append(BlockDriverState *bs, int64_t *= offset, + QEMUIOVector *qiov, + BdrvRequestFlags flags) { + return bdrv_co_zone_append(bs->file->bs, offset, qiov, flags); +} + static int64_t raw_getlength(BlockDriverState *bs) { int64_t len; @@ -628,6 +634,7 @@ BlockDriver bdrv_raw =3D { .bdrv_co_pdiscard =3D &raw_co_pdiscard, .bdrv_co_zone_report =3D &raw_co_zone_report, .bdrv_co_zone_mgmt =3D &raw_co_zone_mgmt, + .bdrv_co_zone_append =3D &raw_co_zone_append, .bdrv_co_block_status =3D &raw_co_block_status, .bdrv_co_copy_range_from =3D &raw_co_copy_range_from, .bdrv_co_copy_range_to =3D &raw_co_copy_range_to, diff --git a/include/block/block-io.h b/include/block/block-io.h index 65463b88d9..a792164018 100644 --- a/include/block/block-io.h +++ b/include/block/block-io.h @@ -94,6 +94,9 @@ int coroutine_fn bdrv_co_zone_report(BlockDriverState *bs= , int64_t offset, BlockZoneDescriptor *zones); int coroutine_fn bdrv_co_zone_mgmt(BlockDriverState *bs, BlockZoneOp op, int64_t offset, int64_t len); +int coroutine_fn bdrv_co_zone_append(BlockDriverState *bs, int64_t *offset, + QEMUIOVector *qiov, + BdrvRequestFlags flags); =20 int bdrv_co_pdiscard(BdrvChild *child, int64_t offset, int64_t bytes); bool bdrv_can_write_zeroes_with_unmap(BlockDriverState *bs); diff --git a/include/block/block_int-common.h b/include/block/block_int-com= mon.h index 59c2d1316d..a7e7db5646 100644 --- a/include/block/block_int-common.h +++ b/include/block/block_int-common.h @@ -701,6 +701,9 @@ struct BlockDriver { BlockZoneDescriptor *zones); int coroutine_fn (*bdrv_co_zone_mgmt)(BlockDriverState *bs, BlockZoneO= p op, int64_t offset, int64_t len); + int coroutine_fn (*bdrv_co_zone_append)(BlockDriverState *bs, + int64_t *offset, QEMUIOVector *qiov, + BdrvRequestFlags flags); =20 /* removable device specific */ bool (*bdrv_is_inserted)(BlockDriverState *bs); diff --git a/include/sysemu/block-backend-io.h b/include/sysemu/block-backe= nd-io.h index 6835525582..33e35ae5d7 100644 --- a/include/sysemu/block-backend-io.h +++ b/include/sysemu/block-backend-io.h @@ -51,6 +51,9 @@ BlockAIOCB *blk_aio_zone_report(BlockBackend *blk, int64_= t offset, BlockAIOCB *blk_aio_zone_mgmt(BlockBackend *blk, BlockZoneOp op, int64_t offset, int64_t len, BlockCompletionFunc *cb, void *opaque); +BlockAIOCB *blk_aio_zone_append(BlockBackend *blk, int64_t *offset, + QEMUIOVector *qiov, BdrvRequestFlags flags, + BlockCompletionFunc *cb, void *opaque); BlockAIOCB *blk_aio_pdiscard(BlockBackend *blk, int64_t offset, int64_t by= tes, BlockCompletionFunc *cb, void *opaque); void blk_aio_cancel_async(BlockAIOCB *acb); @@ -172,6 +175,12 @@ int coroutine_fn blk_co_zone_mgmt(BlockBackend *blk, B= lockZoneOp op, int64_t offset, int64_t len); int generated_co_wrapper blk_zone_mgmt(BlockBackend *blk, BlockZoneOp op, int64_t offset, int64_t len); +int coroutine_fn blk_co_zone_append(BlockBackend *blk, int64_t *offset, + QEMUIOVector *qiov, + BdrvRequestFlags flags); +int generated_co_wrapper blk_zone_append(BlockBackend *blk, int64_t *offse= t, + QEMUIOVector *qiov, + BdrvRequestFlags flags); =20 int generated_co_wrapper blk_pdiscard(BlockBackend *blk, int64_t offset, int64_t bytes); diff --git a/qemu-io-cmds.c b/qemu-io-cmds.c index e56c8d1c30..6cb86de35b 100644 --- a/qemu-io-cmds.c +++ b/qemu-io-cmds.c @@ -1855,6 +1855,67 @@ static const cmdinfo_t zone_reset_cmd =3D { .oneline =3D "reset a zone write pointer in zone block device", }; =20 +static int do_aio_zone_append(BlockBackend *blk, QEMUIOVector *qiov, + int64_t *offset, int flags, int *total) +{ + int async_ret =3D NOT_DONE; + + blk_aio_zone_append(blk, offset, qiov, flags, aio_rw_done, &async_ret); + while (async_ret =3D=3D NOT_DONE) { + main_loop_wait(false); + } + + *total =3D qiov->size; + return async_ret < 0 ? async_ret : 1; +} + +static int zone_append_f(BlockBackend *blk, int argc, char **argv) { + int ret; + int flags =3D 0; + int total =3D 0; + int64_t offset; + char *buf; + int nr_iov; + int pattern =3D 0xcd; + QEMUIOVector qiov; + + if (optind > argc - 2) { + return -EINVAL; + } + optind++; + offset =3D cvtnum(argv[optind]); + if (offset < 0) { + print_cvtnum_err(offset, argv[optind]); + return offset; + } + optind++; + nr_iov =3D argc - optind; + buf =3D create_iovec(blk, &qiov, &argv[optind], nr_iov, pattern); + if (buf =3D=3D NULL) { + return -EINVAL; + } + ret =3D do_aio_zone_append(blk, &qiov, &offset, flags, &total); + if (ret < 0) { + printf("zone append failed: %s\n", strerror(-ret)); + goto out; + } + + out: + qemu_iovec_destroy(&qiov); + qemu_io_free(buf); + return ret; +} + +static const cmdinfo_t zone_append_cmd =3D { + .name =3D "zone_append", + .altname =3D "zap", + .cfunc =3D zone_append_f, + .argmin =3D 3, + .argmax =3D 3, + .args =3D "offset len [len..]", + .oneline =3D "append write a number of bytes at a specified offset", +}; + static int truncate_f(BlockBackend *blk, int argc, char **argv); static const cmdinfo_t truncate_cmd =3D { .name =3D "truncate", @@ -2652,6 +2713,7 @@ static void __attribute((constructor)) init_qemuio_co= mmands(void) qemuio_add_command(&zone_close_cmd); qemuio_add_command(&zone_finish_cmd); qemuio_add_command(&zone_reset_cmd); + qemuio_add_command(&zone_append_cmd); qemuio_add_command(&truncate_cmd); qemuio_add_command(&length_cmd); qemuio_add_command(&info_cmd); diff --git a/tests/qemu-iotests/tests/zoned.out b/tests/qemu-iotests/tests/= zoned.out index 0c8f96deb9..b3b139b4ec 100644 --- a/tests/qemu-iotests/tests/zoned.out +++ b/tests/qemu-iotests/tests/zoned.out @@ -50,4 +50,11 @@ start: 0x80000, len 0x80000, cap 0x80000, wptr 0x100000,= zcond:14, [type: 2] (5) resetting the second zone After resetting a zone: start: 0x80000, len 0x80000, cap 0x80000, wptr 0x80000, zcond:1, [type: 2] + + +(6) append write +After appending the first zone: +start: 0x0, len 0x80000, cap 0x80000, wptr 0x18, zcond:2, [type: 2] +After appending the second zone: +start: 0x80000, len 0x80000, cap 0x80000, wptr 0x80018, zcond:2, [type: 2] *** done diff --git a/tests/qemu-iotests/tests/zoned.sh b/tests/qemu-iotests/tests/z= oned.sh index fced0194c5..888711eef2 100755 --- a/tests/qemu-iotests/tests/zoned.sh +++ b/tests/qemu-iotests/tests/zoned.sh @@ -79,6 +79,15 @@ echo "(5) resetting the second zone" sudo $QEMU_IO $IMG -c "zrs 268435456 268435456" echo "After resetting a zone:" sudo $QEMU_IO $IMG -c "zrp 268435456 1" +echo +echo +echo "(6) append write" # physical block size of the device is 4096 +sudo $QEMU_IO $IMG -c "zap 0 0x1000 0x2000" +echo "After appending the first zone:" +sudo $QEMU_IO $IMG -c "zrp 0 1" +sudo $QEMU_IO $IMG -c "zap 268435456 0x1000 0x2000" +echo "After appending the second zone:" +sudo $QEMU_IO $IMG -c "zrp 268435456 1" =20 # success, all done echo "*** done" --=20 2.37.3