From f85949f98206b3b11d92d695cea4efda6a81f00e Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Thu, 9 Mar 2023 13:25:27 +0100 Subject: xdp: add xdp_set_features_flag utility routine Introduce xdp_set_features_flag utility routine in order to update dynamically xdp_features according to the dynamic hw configuration via ethtool (e.g. changing number of hw rx/tx queues). Add xdp_clear_features_flag() in order to clear all xdp_feature flag. Reviewed-by: Shay Agroskin Signed-off-by: Lorenzo Bianconi Signed-off-by: Jakub Kicinski --- include/uapi/linux/netdev.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/netdev.h b/include/uapi/linux/netdev.h index 8c4e3e536c04..ed134fbdfd32 100644 --- a/include/uapi/linux/netdev.h +++ b/include/uapi/linux/netdev.h @@ -33,6 +33,8 @@ enum netdev_xdp_act { NETDEV_XDP_ACT_HW_OFFLOAD = 16, NETDEV_XDP_ACT_RX_SG = 32, NETDEV_XDP_ACT_NDO_XMIT_SG = 64, + + NETDEV_XDP_ACT_MASK = 127, }; enum { -- cgit From 4e16b6a748df52800c90f3ab181aef8129bd332f Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Wed, 15 Mar 2023 16:03:50 -0700 Subject: ynl: broaden the license even more I relicensed Netlink spec code to GPL-2.0 OR BSD-3-Clause but we still put a slightly different license on the uAPI header than the rest of the code. Use the Linux-syscall-note on all the specs and all generated code. It's moot for kernel code, but should not hurt. This way the licenses match everywhere. Cc: Chuck Lever Fixes: 37d9df224d1e ("ynl: re-license uniformly under GPL-2.0 OR BSD-3-Clause") Reviewed-by: Chuck Lever Signed-off-by: Jakub Kicinski --- Documentation/netlink/genetlink-c.yaml | 2 +- Documentation/netlink/genetlink-legacy.yaml | 2 +- Documentation/netlink/genetlink.yaml | 2 +- Documentation/netlink/specs/ethtool.yaml | 2 +- Documentation/netlink/specs/fou.yaml | 2 +- Documentation/netlink/specs/netdev.yaml | 2 +- Documentation/userspace-api/netlink/specs.rst | 3 ++- include/uapi/linux/fou.h | 2 +- include/uapi/linux/netdev.h | 2 +- net/core/netdev-genl-gen.c | 2 +- net/core/netdev-genl-gen.h | 2 +- net/ipv4/fou_nl.c | 2 +- net/ipv4/fou_nl.h | 2 +- tools/include/uapi/linux/netdev.h | 2 +- tools/net/ynl/ynl-gen-c.py | 8 ++++---- 15 files changed, 19 insertions(+), 18 deletions(-) (limited to 'include/uapi/linux') diff --git a/Documentation/netlink/genetlink-c.yaml b/Documentation/netlink/genetlink-c.yaml index f082a5ad7cf1..5c3642b3f802 100644 --- a/Documentation/netlink/genetlink-c.yaml +++ b/Documentation/netlink/genetlink-c.yaml @@ -1,4 +1,4 @@ -# SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) %YAML 1.2 --- $id: http://kernel.org/schemas/netlink/genetlink-c.yaml# diff --git a/Documentation/netlink/genetlink-legacy.yaml b/Documentation/netlink/genetlink-legacy.yaml index c6b8c77f7d12..5e98c6d2b9aa 100644 --- a/Documentation/netlink/genetlink-legacy.yaml +++ b/Documentation/netlink/genetlink-legacy.yaml @@ -1,4 +1,4 @@ -# SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) %YAML 1.2 --- $id: http://kernel.org/schemas/netlink/genetlink-legacy.yaml# diff --git a/Documentation/netlink/genetlink.yaml b/Documentation/netlink/genetlink.yaml index b2d56ab9e615..d35dcd6f8d82 100644 --- a/Documentation/netlink/genetlink.yaml +++ b/Documentation/netlink/genetlink.yaml @@ -1,4 +1,4 @@ -# SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) %YAML 1.2 --- $id: http://kernel.org/schemas/netlink/genetlink-legacy.yaml# diff --git a/Documentation/netlink/specs/ethtool.yaml b/Documentation/netlink/specs/ethtool.yaml index 18ecb7d90cbe..4727c067e2ba 100644 --- a/Documentation/netlink/specs/ethtool.yaml +++ b/Documentation/netlink/specs/ethtool.yaml @@ -1,4 +1,4 @@ -# SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) name: ethtool diff --git a/Documentation/netlink/specs/fou.yaml b/Documentation/netlink/specs/fou.yaml index cff104288723..3e13826a3fdf 100644 --- a/Documentation/netlink/specs/fou.yaml +++ b/Documentation/netlink/specs/fou.yaml @@ -1,4 +1,4 @@ -# SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) name: fou diff --git a/Documentation/netlink/specs/netdev.yaml b/Documentation/netlink/specs/netdev.yaml index 753e5914a8b7..b99e7ffef7a1 100644 --- a/Documentation/netlink/specs/netdev.yaml +++ b/Documentation/netlink/specs/netdev.yaml @@ -1,4 +1,4 @@ -# SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) name: netdev diff --git a/Documentation/userspace-api/netlink/specs.rst b/Documentation/userspace-api/netlink/specs.rst index 2122e0c4a399..a22442ba1d30 100644 --- a/Documentation/userspace-api/netlink/specs.rst +++ b/Documentation/userspace-api/netlink/specs.rst @@ -24,7 +24,8 @@ YAML specifications can be found under ``Documentation/netlink/specs/`` This document describes details of the schema. See :doc:`intro-specs` for a practical starting guide. -All specs must be licensed under ``GPL-2.0-only OR BSD-3-Clause`` +All specs must be licensed under +``((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)`` to allow for easy adoption in user space code. Compatibility levels diff --git a/include/uapi/linux/fou.h b/include/uapi/linux/fou.h index 5041c3598493..b5cd3e7b3775 100644 --- a/include/uapi/linux/fou.h +++ b/include/uapi/linux/fou.h @@ -1,4 +1,4 @@ -/* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause */ +/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */ /* Do not edit directly, auto-generated from: */ /* Documentation/netlink/specs/fou.yaml */ /* YNL-GEN uapi header */ diff --git a/include/uapi/linux/netdev.h b/include/uapi/linux/netdev.h index ed134fbdfd32..639524b59930 100644 --- a/include/uapi/linux/netdev.h +++ b/include/uapi/linux/netdev.h @@ -1,4 +1,4 @@ -/* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause */ +/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */ /* Do not edit directly, auto-generated from: */ /* Documentation/netlink/specs/netdev.yaml */ /* YNL-GEN uapi header */ diff --git a/net/core/netdev-genl-gen.c b/net/core/netdev-genl-gen.c index 9e10802587fc..3abab70d66dd 100644 --- a/net/core/netdev-genl-gen.c +++ b/net/core/netdev-genl-gen.c @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +// SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) /* Do not edit directly, auto-generated from: */ /* Documentation/netlink/specs/netdev.yaml */ /* YNL-GEN kernel source */ diff --git a/net/core/netdev-genl-gen.h b/net/core/netdev-genl-gen.h index 2c5fc7d1e8a7..74d74fc23167 100644 --- a/net/core/netdev-genl-gen.h +++ b/net/core/netdev-genl-gen.h @@ -1,4 +1,4 @@ -/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ +/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */ /* Do not edit directly, auto-generated from: */ /* Documentation/netlink/specs/netdev.yaml */ /* YNL-GEN kernel header */ diff --git a/net/ipv4/fou_nl.c b/net/ipv4/fou_nl.c index 5c14fe030eda..6c37c4f98cca 100644 --- a/net/ipv4/fou_nl.c +++ b/net/ipv4/fou_nl.c @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +// SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) /* Do not edit directly, auto-generated from: */ /* Documentation/netlink/specs/fou.yaml */ /* YNL-GEN kernel source */ diff --git a/net/ipv4/fou_nl.h b/net/ipv4/fou_nl.h index 58b1e1ed4b3b..dbd0780a5d34 100644 --- a/net/ipv4/fou_nl.h +++ b/net/ipv4/fou_nl.h @@ -1,4 +1,4 @@ -/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ +/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */ /* Do not edit directly, auto-generated from: */ /* Documentation/netlink/specs/fou.yaml */ /* YNL-GEN kernel header */ diff --git a/tools/include/uapi/linux/netdev.h b/tools/include/uapi/linux/netdev.h index ed134fbdfd32..639524b59930 100644 --- a/tools/include/uapi/linux/netdev.h +++ b/tools/include/uapi/linux/netdev.h @@ -1,4 +1,4 @@ -/* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause */ +/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */ /* Do not edit directly, auto-generated from: */ /* Documentation/netlink/specs/netdev.yaml */ /* YNL-GEN uapi header */ diff --git a/tools/net/ynl/ynl-gen-c.py b/tools/net/ynl/ynl-gen-c.py index d47376f19de7..3b4d03a50fc1 100755 --- a/tools/net/ynl/ynl-gen-c.py +++ b/tools/net/ynl/ynl-gen-c.py @@ -1,5 +1,5 @@ #!/usr/bin/env python3 -# SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) import argparse import collections @@ -2068,12 +2068,12 @@ def main(): _, spec_kernel = find_kernel_root(args.spec) if args.mode == 'uapi': - cw.p('/* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause */') + cw.p('/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */') else: if args.header: - cw.p('/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */') + cw.p('/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */') else: - cw.p('// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause') + cw.p('// SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)') cw.p("/* Do not edit directly, auto-generated from: */") cw.p(f"/*\t{spec_kernel} */") cw.p(f"/* YNL-GEN {args.mode} {'header' if args.header else 'source'} */") -- cgit From 2f59823fe696caa844249a90bb3f9aeda69cfe5c Mon Sep 17 00:00:00 2001 From: Hangbin Liu Date: Thu, 16 Mar 2023 11:37:53 +0800 Subject: net/sched: act_api: add specific EXT_WARN_MSG for tc action In my previous commit 0349b8779cc9 ("sched: add new attr TCA_EXT_WARN_MSG to report tc extact message") I didn't notice the tc action use different enum with filter. So we can't use TCA_EXT_WARN_MSG directly for tc action. Let's add a TCA_ROOT_EXT_WARN_MSG for tc action specifically and put this param before going to the TCA_ACT_TAB nest. Fixes: 0349b8779cc9 ("sched: add new attr TCA_EXT_WARN_MSG to report tc extact message") Signed-off-by: Hangbin Liu Acked-by: Jamal Hadi Salim Signed-off-by: Jakub Kicinski --- include/uapi/linux/rtnetlink.h | 1 + net/sched/act_api.c | 8 ++++---- 2 files changed, 5 insertions(+), 4 deletions(-) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/rtnetlink.h b/include/uapi/linux/rtnetlink.h index 25a0af57dd5e..51c13cf9c5ae 100644 --- a/include/uapi/linux/rtnetlink.h +++ b/include/uapi/linux/rtnetlink.h @@ -789,6 +789,7 @@ enum { TCA_ROOT_FLAGS, TCA_ROOT_COUNT, TCA_ROOT_TIME_DELTA, /* in msecs */ + TCA_ROOT_EXT_WARN_MSG, __TCA_ROOT_MAX, #define TCA_ROOT_MAX (__TCA_ROOT_MAX - 1) }; diff --git a/net/sched/act_api.c b/net/sched/act_api.c index fce522886099..296fc1afedd8 100644 --- a/net/sched/act_api.c +++ b/net/sched/act_api.c @@ -1589,6 +1589,10 @@ static int tca_get_fill(struct sk_buff *skb, struct tc_action *actions[], t->tca__pad1 = 0; t->tca__pad2 = 0; + if (extack && extack->_msg && + nla_put_string(skb, TCA_ROOT_EXT_WARN_MSG, extack->_msg)) + goto out_nlmsg_trim; + nest = nla_nest_start_noflag(skb, TCA_ACT_TAB); if (!nest) goto out_nlmsg_trim; @@ -1598,10 +1602,6 @@ static int tca_get_fill(struct sk_buff *skb, struct tc_action *actions[], nla_nest_end(skb, nest); - if (extack && extack->_msg && - nla_put_string(skb, TCA_EXT_WARN_MSG, extack->_msg)) - goto out_nlmsg_trim; - nlh->nlmsg_len = skb_tail_pointer(skb) - b; return skb->len; -- cgit From f1ba4e674febf5c0e9f725a75ca43b7722b4e963 Mon Sep 17 00:00:00 2001 From: Dmitry Fomichev Date: Thu, 30 Mar 2023 17:49:52 -0400 Subject: virtio-blk: fix to match virtio spec The merged patch series to support zoned block devices in virtio-blk is not the most up to date version. The merged patch can be found at https://lore.kernel.org/linux-block/20221016034127.330942-3-dmitry.fomichev@wdc.com/ but the latest and reviewed version is https://lore.kernel.org/linux-block/20221110053952.3378990-3-dmitry.fomichev@wdc.com/ The reason is apparently that the correct mailing lists and maintainers were not copied. The differences between the two are mostly cleanups, but there is one change that is very important in terms of compatibility with the approved virtio-zbd specification. Before it was approved, the OASIS virtio spec had a change in VIRTIO_BLK_T_ZONE_APPEND request layout that is not reflected in the current virtio-blk driver code. In the running code, the status is the first byte of the in-header that is followed by some pad bytes and the u64 that carries the sector at which the data has been written to the zone back to the driver, aka the append sector. This layout turned out to be problematic for implementing in QEMU and the request status byte has been eventually made the last byte of the in-header. The current code doesn't expect that and this causes the append sector value always come as zero to the block layer. This needs to be fixed ASAP. Fixes: 95bfec41bd3d ("virtio-blk: add support for zoned block devices") Cc: stable@vger.kernel.org Signed-off-by: Dmitry Fomichev Reviewed-by: Stefan Hajnoczi Reviewed-by: Damien Le Moal Message-Id: <20230330214953.1088216-2-dmitry.fomichev@wdc.com> Signed-off-by: Michael S. Tsirkin --- drivers/block/virtio_blk.c | 238 ++++++++++++++++++++++++++-------------- include/uapi/linux/virtio_blk.h | 18 +-- 2 files changed, 166 insertions(+), 90 deletions(-) (limited to 'include/uapi/linux') diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 2723eede6f21..4f0dbbb3d4a5 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -96,16 +96,14 @@ struct virtblk_req { /* * The zone append command has an extended in header. - * The status field in zone_append_in_hdr must have - * the same offset in virtblk_req as the non-zoned - * status field above. + * The status field in zone_append_in_hdr must always + * be the last byte. */ struct { + __virtio64 sector; u8 status; - u8 reserved[7]; - __le64 append_sector; - } zone_append_in_hdr; - }; + } zone_append; + } in_hdr; size_t in_hdr_len; @@ -154,7 +152,7 @@ static int virtblk_add_req(struct virtqueue *vq, struct virtblk_req *vbr) sgs[num_out + num_in++] = vbr->sg_table.sgl; } - sg_init_one(&in_hdr, &vbr->status, vbr->in_hdr_len); + sg_init_one(&in_hdr, &vbr->in_hdr.status, vbr->in_hdr_len); sgs[num_out + num_in++] = &in_hdr; return virtqueue_add_sgs(vq, sgs, num_out, num_in, vbr, GFP_ATOMIC); @@ -242,11 +240,14 @@ static blk_status_t virtblk_setup_cmd(struct virtio_device *vdev, struct request *req, struct virtblk_req *vbr) { - size_t in_hdr_len = sizeof(vbr->status); + size_t in_hdr_len = sizeof(vbr->in_hdr.status); bool unmap = false; u32 type; u64 sector = 0; + if (!IS_ENABLED(CONFIG_BLK_DEV_ZONED) && op_is_zone_mgmt(req_op(req))) + return BLK_STS_NOTSUPP; + /* Set fields for all request types */ vbr->out_hdr.ioprio = cpu_to_virtio32(vdev, req_get_ioprio(req)); @@ -287,7 +288,7 @@ static blk_status_t virtblk_setup_cmd(struct virtio_device *vdev, case REQ_OP_ZONE_APPEND: type = VIRTIO_BLK_T_ZONE_APPEND; sector = blk_rq_pos(req); - in_hdr_len = sizeof(vbr->zone_append_in_hdr); + in_hdr_len = sizeof(vbr->in_hdr.zone_append); break; case REQ_OP_ZONE_RESET: type = VIRTIO_BLK_T_ZONE_RESET; @@ -297,7 +298,10 @@ static blk_status_t virtblk_setup_cmd(struct virtio_device *vdev, type = VIRTIO_BLK_T_ZONE_RESET_ALL; break; case REQ_OP_DRV_IN: - /* Out header already filled in, nothing to do */ + /* + * Out header has already been prepared by the caller (virtblk_get_id() + * or virtblk_submit_zone_report()), nothing to do here. + */ return 0; default: WARN_ON_ONCE(1); @@ -318,16 +322,28 @@ static blk_status_t virtblk_setup_cmd(struct virtio_device *vdev, return 0; } +/* + * The status byte is always the last byte of the virtblk request + * in-header. This helper fetches its value for all in-header formats + * that are currently defined. + */ +static inline u8 virtblk_vbr_status(struct virtblk_req *vbr) +{ + return *((u8 *)&vbr->in_hdr + vbr->in_hdr_len - 1); +} + static inline void virtblk_request_done(struct request *req) { struct virtblk_req *vbr = blk_mq_rq_to_pdu(req); - blk_status_t status = virtblk_result(vbr->status); + blk_status_t status = virtblk_result(virtblk_vbr_status(vbr)); + struct virtio_blk *vblk = req->mq_hctx->queue->queuedata; virtblk_unmap_data(req, vbr); virtblk_cleanup_cmd(req); if (req_op(req) == REQ_OP_ZONE_APPEND) - req->__sector = le64_to_cpu(vbr->zone_append_in_hdr.append_sector); + req->__sector = virtio64_to_cpu(vblk->vdev, + vbr->in_hdr.zone_append.sector); blk_mq_end_request(req, status); } @@ -355,7 +371,7 @@ static int virtblk_handle_req(struct virtio_blk_vq *vq, if (likely(!blk_should_fake_timeout(req->q)) && !blk_mq_complete_request_remote(req) && - !blk_mq_add_to_batch(req, iob, vbr->status, + !blk_mq_add_to_batch(req, iob, virtblk_vbr_status(vbr), virtblk_complete_batch)) virtblk_request_done(req); req_done++; @@ -550,7 +566,6 @@ static void virtio_queue_rqs(struct request **rqlist) #ifdef CONFIG_BLK_DEV_ZONED static void *virtblk_alloc_report_buffer(struct virtio_blk *vblk, unsigned int nr_zones, - unsigned int zone_sectors, size_t *buflen) { struct request_queue *q = vblk->disk->queue; @@ -558,7 +573,7 @@ static void *virtblk_alloc_report_buffer(struct virtio_blk *vblk, void *buf; nr_zones = min_t(unsigned int, nr_zones, - get_capacity(vblk->disk) >> ilog2(zone_sectors)); + get_capacity(vblk->disk) >> ilog2(vblk->zone_sectors)); bufsize = sizeof(struct virtio_blk_zone_report) + nr_zones * sizeof(struct virtio_blk_zone_descriptor); @@ -592,7 +607,7 @@ static int virtblk_submit_zone_report(struct virtio_blk *vblk, return PTR_ERR(req); vbr = blk_mq_rq_to_pdu(req); - vbr->in_hdr_len = sizeof(vbr->status); + vbr->in_hdr_len = sizeof(vbr->in_hdr.status); vbr->out_hdr.type = cpu_to_virtio32(vblk->vdev, VIRTIO_BLK_T_ZONE_REPORT); vbr->out_hdr.sector = cpu_to_virtio64(vblk->vdev, sector); @@ -601,7 +616,7 @@ static int virtblk_submit_zone_report(struct virtio_blk *vblk, goto out; blk_execute_rq(req, false); - err = blk_status_to_errno(virtblk_result(vbr->status)); + err = blk_status_to_errno(virtblk_result(vbr->in_hdr.status)); out: blk_mq_free_request(req); return err; @@ -609,29 +624,72 @@ out: static int virtblk_parse_zone(struct virtio_blk *vblk, struct virtio_blk_zone_descriptor *entry, - unsigned int idx, unsigned int zone_sectors, - report_zones_cb cb, void *data) + unsigned int idx, report_zones_cb cb, void *data) { struct blk_zone zone = { }; - if (entry->z_type != VIRTIO_BLK_ZT_SWR && - entry->z_type != VIRTIO_BLK_ZT_SWP && - entry->z_type != VIRTIO_BLK_ZT_CONV) { - dev_err(&vblk->vdev->dev, "invalid zone type %#x\n", - entry->z_type); - return -EINVAL; + zone.start = virtio64_to_cpu(vblk->vdev, entry->z_start); + if (zone.start + vblk->zone_sectors <= get_capacity(vblk->disk)) + zone.len = vblk->zone_sectors; + else + zone.len = get_capacity(vblk->disk) - zone.start; + zone.capacity = virtio64_to_cpu(vblk->vdev, entry->z_cap); + zone.wp = virtio64_to_cpu(vblk->vdev, entry->z_wp); + + switch (entry->z_type) { + case VIRTIO_BLK_ZT_SWR: + zone.type = BLK_ZONE_TYPE_SEQWRITE_REQ; + break; + case VIRTIO_BLK_ZT_SWP: + zone.type = BLK_ZONE_TYPE_SEQWRITE_PREF; + break; + case VIRTIO_BLK_ZT_CONV: + zone.type = BLK_ZONE_TYPE_CONVENTIONAL; + break; + default: + dev_err(&vblk->vdev->dev, "zone %llu: invalid type %#x\n", + zone.start, entry->z_type); + return -EIO; } - zone.type = entry->z_type; - zone.cond = entry->z_state; - zone.len = zone_sectors; - zone.capacity = le64_to_cpu(entry->z_cap); - zone.start = le64_to_cpu(entry->z_start); - if (zone.cond == BLK_ZONE_COND_FULL) + switch (entry->z_state) { + case VIRTIO_BLK_ZS_EMPTY: + zone.cond = BLK_ZONE_COND_EMPTY; + break; + case VIRTIO_BLK_ZS_CLOSED: + zone.cond = BLK_ZONE_COND_CLOSED; + break; + case VIRTIO_BLK_ZS_FULL: + zone.cond = BLK_ZONE_COND_FULL; zone.wp = zone.start + zone.len; - else - zone.wp = le64_to_cpu(entry->z_wp); + break; + case VIRTIO_BLK_ZS_EOPEN: + zone.cond = BLK_ZONE_COND_EXP_OPEN; + break; + case VIRTIO_BLK_ZS_IOPEN: + zone.cond = BLK_ZONE_COND_IMP_OPEN; + break; + case VIRTIO_BLK_ZS_NOT_WP: + zone.cond = BLK_ZONE_COND_NOT_WP; + break; + case VIRTIO_BLK_ZS_RDONLY: + zone.cond = BLK_ZONE_COND_READONLY; + zone.wp = ULONG_MAX; + break; + case VIRTIO_BLK_ZS_OFFLINE: + zone.cond = BLK_ZONE_COND_OFFLINE; + zone.wp = ULONG_MAX; + break; + default: + dev_err(&vblk->vdev->dev, "zone %llu: invalid condition %#x\n", + zone.start, entry->z_state); + return -EIO; + } + /* + * The callback below checks the validity of the reported + * entry data, no need to further validate it here. + */ return cb(&zone, idx, data); } @@ -641,39 +699,47 @@ static int virtblk_report_zones(struct gendisk *disk, sector_t sector, { struct virtio_blk *vblk = disk->private_data; struct virtio_blk_zone_report *report; - unsigned int zone_sectors = vblk->zone_sectors; - unsigned int nz, i; - int ret, zone_idx = 0; + unsigned long long nz, i; size_t buflen; + unsigned int zone_idx = 0; + int ret; if (WARN_ON_ONCE(!vblk->zone_sectors)) return -EOPNOTSUPP; - report = virtblk_alloc_report_buffer(vblk, nr_zones, - zone_sectors, &buflen); + report = virtblk_alloc_report_buffer(vblk, nr_zones, &buflen); if (!report) return -ENOMEM; + mutex_lock(&vblk->vdev_mutex); + + if (!vblk->vdev) { + ret = -ENXIO; + goto fail_report; + } + while (zone_idx < nr_zones && sector < get_capacity(vblk->disk)) { memset(report, 0, buflen); ret = virtblk_submit_zone_report(vblk, (char *)report, buflen, sector); - if (ret) { - if (ret > 0) - ret = -EIO; - goto out_free; - } - nz = min((unsigned int)le64_to_cpu(report->nr_zones), nr_zones); + if (ret) + goto fail_report; + + nz = min_t(u64, virtio64_to_cpu(vblk->vdev, report->nr_zones), + nr_zones); if (!nz) break; for (i = 0; i < nz && zone_idx < nr_zones; i++) { ret = virtblk_parse_zone(vblk, &report->zones[i], - zone_idx, zone_sectors, cb, data); + zone_idx, cb, data); if (ret) - goto out_free; - sector = le64_to_cpu(report->zones[i].z_start) + zone_sectors; + goto fail_report; + + sector = virtio64_to_cpu(vblk->vdev, + report->zones[i].z_start) + + vblk->zone_sectors; zone_idx++; } } @@ -682,7 +748,8 @@ static int virtblk_report_zones(struct gendisk *disk, sector_t sector, ret = zone_idx; else ret = -EINVAL; -out_free: +fail_report: + mutex_unlock(&vblk->vdev_mutex); kvfree(report); return ret; } @@ -691,20 +758,28 @@ static void virtblk_revalidate_zones(struct virtio_blk *vblk) { u8 model; - if (!vblk->zone_sectors) - return; - virtio_cread(vblk->vdev, struct virtio_blk_config, zoned.model, &model); - if (!blk_revalidate_disk_zones(vblk->disk, NULL)) - set_capacity_and_notify(vblk->disk, 0); + switch (model) { + default: + dev_err(&vblk->vdev->dev, "unknown zone model %d\n", model); + fallthrough; + case VIRTIO_BLK_Z_NONE: + case VIRTIO_BLK_Z_HA: + disk_set_zoned(vblk->disk, BLK_ZONED_NONE); + return; + case VIRTIO_BLK_Z_HM: + WARN_ON_ONCE(!vblk->zone_sectors); + if (!blk_revalidate_disk_zones(vblk->disk, NULL)) + set_capacity_and_notify(vblk->disk, 0); + } } static int virtblk_probe_zoned_device(struct virtio_device *vdev, struct virtio_blk *vblk, struct request_queue *q) { - u32 v; + u32 v, wg; u8 model; int ret; @@ -713,16 +788,11 @@ static int virtblk_probe_zoned_device(struct virtio_device *vdev, switch (model) { case VIRTIO_BLK_Z_NONE: + case VIRTIO_BLK_Z_HA: + /* Present the host-aware device as non-zoned */ return 0; case VIRTIO_BLK_Z_HM: break; - case VIRTIO_BLK_Z_HA: - /* - * Present the host-aware device as a regular drive. - * TODO It is possible to add an option to make it appear - * in the system as a zoned drive. - */ - return 0; default: dev_err(&vdev->dev, "unsupported zone model %d\n", model); return -EINVAL; @@ -735,32 +805,31 @@ static int virtblk_probe_zoned_device(struct virtio_device *vdev, virtio_cread(vdev, struct virtio_blk_config, zoned.max_open_zones, &v); - disk_set_max_open_zones(vblk->disk, le32_to_cpu(v)); - - dev_dbg(&vdev->dev, "max open zones = %u\n", le32_to_cpu(v)); + disk_set_max_open_zones(vblk->disk, v); + dev_dbg(&vdev->dev, "max open zones = %u\n", v); virtio_cread(vdev, struct virtio_blk_config, zoned.max_active_zones, &v); - disk_set_max_active_zones(vblk->disk, le32_to_cpu(v)); - dev_dbg(&vdev->dev, "max active zones = %u\n", le32_to_cpu(v)); + disk_set_max_active_zones(vblk->disk, v); + dev_dbg(&vdev->dev, "max active zones = %u\n", v); virtio_cread(vdev, struct virtio_blk_config, - zoned.write_granularity, &v); - if (!v) { + zoned.write_granularity, &wg); + if (!wg) { dev_warn(&vdev->dev, "zero write granularity reported\n"); return -ENODEV; } - blk_queue_physical_block_size(q, le32_to_cpu(v)); - blk_queue_io_min(q, le32_to_cpu(v)); + blk_queue_physical_block_size(q, wg); + blk_queue_io_min(q, wg); - dev_dbg(&vdev->dev, "write granularity = %u\n", le32_to_cpu(v)); + dev_dbg(&vdev->dev, "write granularity = %u\n", wg); /* * virtio ZBD specification doesn't require zones to be a power of * two sectors in size, but the code in this driver expects that. */ - virtio_cread(vdev, struct virtio_blk_config, zoned.zone_sectors, &v); - vblk->zone_sectors = le32_to_cpu(v); + virtio_cread(vdev, struct virtio_blk_config, zoned.zone_sectors, + &vblk->zone_sectors); if (vblk->zone_sectors == 0 || !is_power_of_2(vblk->zone_sectors)) { dev_err(&vdev->dev, "zoned device with non power of two zone size %u\n", @@ -783,8 +852,15 @@ static int virtblk_probe_zoned_device(struct virtio_device *vdev, dev_warn(&vdev->dev, "zero max_append_sectors reported\n"); return -ENODEV; } - blk_queue_max_zone_append_sectors(q, le32_to_cpu(v)); - dev_dbg(&vdev->dev, "max append sectors = %u\n", le32_to_cpu(v)); + if ((v << SECTOR_SHIFT) < wg) { + dev_err(&vdev->dev, + "write granularity %u exceeds max_append_sectors %u limit\n", + wg, v); + return -ENODEV; + } + + blk_queue_max_zone_append_sectors(q, v); + dev_dbg(&vdev->dev, "max append sectors = %u\n", v); } return ret; @@ -794,6 +870,7 @@ static inline bool virtblk_has_zoned_feature(struct virtio_device *vdev) { return virtio_has_feature(vdev, VIRTIO_BLK_F_ZONED); } + #else /* @@ -801,9 +878,11 @@ static inline bool virtblk_has_zoned_feature(struct virtio_device *vdev) * We only need to define a few symbols to avoid compilation errors. */ #define virtblk_report_zones NULL + static inline void virtblk_revalidate_zones(struct virtio_blk *vblk) { } + static inline int virtblk_probe_zoned_device(struct virtio_device *vdev, struct virtio_blk *vblk, struct request_queue *q) { @@ -831,7 +910,7 @@ static int virtblk_get_id(struct gendisk *disk, char *id_str) return PTR_ERR(req); vbr = blk_mq_rq_to_pdu(req); - vbr->in_hdr_len = sizeof(vbr->status); + vbr->in_hdr_len = sizeof(vbr->in_hdr.status); vbr->out_hdr.type = cpu_to_virtio32(vblk->vdev, VIRTIO_BLK_T_GET_ID); vbr->out_hdr.sector = 0; @@ -840,7 +919,7 @@ static int virtblk_get_id(struct gendisk *disk, char *id_str) goto out; blk_execute_rq(req, false); - err = blk_status_to_errno(virtblk_result(vbr->status)); + err = blk_status_to_errno(virtblk_result(vbr->in_hdr.status)); out: blk_mq_free_request(req); return err; @@ -1504,9 +1583,6 @@ static int virtblk_probe(struct virtio_device *vdev) goto out_cleanup_disk; } - dev_info(&vdev->dev, "blk config size: %zu\n", - sizeof(struct virtio_blk_config)); - err = device_add_disk(&vdev->dev, vblk->disk, virtblk_attr_groups); if (err) goto out_cleanup_disk; diff --git a/include/uapi/linux/virtio_blk.h b/include/uapi/linux/virtio_blk.h index 5af2a0300bb9..3744e4da1b2a 100644 --- a/include/uapi/linux/virtio_blk.h +++ b/include/uapi/linux/virtio_blk.h @@ -140,11 +140,11 @@ struct virtio_blk_config { /* Zoned block device characteristics (if VIRTIO_BLK_F_ZONED) */ struct virtio_blk_zoned_characteristics { - __le32 zone_sectors; - __le32 max_open_zones; - __le32 max_active_zones; - __le32 max_append_sectors; - __le32 write_granularity; + __virtio32 zone_sectors; + __virtio32 max_open_zones; + __virtio32 max_active_zones; + __virtio32 max_append_sectors; + __virtio32 write_granularity; __u8 model; __u8 unused2[3]; } zoned; @@ -241,11 +241,11 @@ struct virtio_blk_outhdr { */ struct virtio_blk_zone_descriptor { /* Zone capacity */ - __le64 z_cap; + __virtio64 z_cap; /* The starting sector of the zone */ - __le64 z_start; + __virtio64 z_start; /* Zone write pointer position in sectors */ - __le64 z_wp; + __virtio64 z_wp; /* Zone type */ __u8 z_type; /* Zone state */ @@ -254,7 +254,7 @@ struct virtio_blk_zone_descriptor { }; struct virtio_blk_zone_report { - __le64 nr_zones; + __virtio64 nr_zones; __u8 reserved[56]; struct virtio_blk_zone_descriptor zones[]; }; -- cgit