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[212.43.115.213]) by smtp.gmail.com with ESMTPSA id p12-20020a37420c000000b007426ec97253sm8383058qka.111.2023.03.02.03.35.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Mar 2023 03:35:08 -0800 (PST) From: Stefano Garzarella To: virtualization@lists.linux-foundation.org Cc: Andrey Zhadchenko , eperezma@redhat.com, netdev@vger.kernel.org, stefanha@redhat.com, linux-kernel@vger.kernel.org, Jason Wang , "Michael S. Tsirkin" , kvm@vger.kernel.org, Stefano Garzarella Subject: [PATCH v2 5/8] vdpa_sim: make devices agnostic for work management Date: Thu, 2 Mar 2023 12:34:18 +0100 Message-Id: <20230302113421.174582-6-sgarzare@redhat.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230302113421.174582-1-sgarzare@redhat.com> References: <20230302113421.174582-1-sgarzare@redhat.com> MIME-Version: 1.0 Content-type: text/plain Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Let's move work management inside the vdpa_sim core. This way we can easily change how we manage the works, without having to change the devices each time. Signed-off-by: Stefano Garzarella Acked-by: Eugenio Pérez Martin Acked-by: Jason Wang --- drivers/vdpa/vdpa_sim/vdpa_sim.h | 3 ++- drivers/vdpa/vdpa_sim/vdpa_sim.c | 17 +++++++++++++++-- drivers/vdpa/vdpa_sim/vdpa_sim_blk.c | 6 ++---- drivers/vdpa/vdpa_sim/vdpa_sim_net.c | 6 ++---- 4 files changed, 21 insertions(+), 11 deletions(-) diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.h b/drivers/vdpa/vdpa_sim/vdpa_sim.h index 144858636c10..acee20faaf6a 100644 --- a/drivers/vdpa/vdpa_sim/vdpa_sim.h +++ b/drivers/vdpa/vdpa_sim/vdpa_sim.h @@ -45,7 +45,7 @@ struct vdpasim_dev_attr { u32 ngroups; u32 nas; - work_func_t work_fn; + void (*work_fn)(struct vdpasim *vdpasim); void (*get_config)(struct vdpasim *vdpasim, void *config); void (*set_config)(struct vdpasim *vdpasim, const void *config); int (*get_stats)(struct vdpasim *vdpasim, u16 idx, @@ -78,6 +78,7 @@ struct vdpasim { struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *attr, const struct vdpa_dev_set_config *config); +void vdpasim_schedule_work(struct vdpasim *vdpasim); /* TODO: cross-endian support */ static inline bool vdpasim_is_little_endian(struct vdpasim *vdpasim) diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c index 481eb156658b..a6ee830efc38 100644 --- a/drivers/vdpa/vdpa_sim/vdpa_sim.c +++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c @@ -116,6 +116,13 @@ static void vdpasim_do_reset(struct vdpasim *vdpasim) static const struct vdpa_config_ops vdpasim_config_ops; static const struct vdpa_config_ops vdpasim_batch_config_ops; +static void vdpasim_work_fn(struct work_struct *work) +{ + struct vdpasim *vdpasim = container_of(work, struct vdpasim, work); + + vdpasim->dev_attr.work_fn(vdpasim); +} + struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr, const struct vdpa_dev_set_config *config) { @@ -152,7 +159,7 @@ struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr, vdpasim = vdpa_to_sim(vdpa); vdpasim->dev_attr = *dev_attr; - INIT_WORK(&vdpasim->work, dev_attr->work_fn); + INIT_WORK(&vdpasim->work, vdpasim_work_fn); spin_lock_init(&vdpasim->lock); spin_lock_init(&vdpasim->iommu_lock); @@ -203,6 +210,12 @@ struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr, } EXPORT_SYMBOL_GPL(vdpasim_create); +void vdpasim_schedule_work(struct vdpasim *vdpasim) +{ + schedule_work(&vdpasim->work); +} +EXPORT_SYMBOL_GPL(vdpasim_schedule_work); + static int vdpasim_set_vq_address(struct vdpa_device *vdpa, u16 idx, u64 desc_area, u64 driver_area, u64 device_area) @@ -237,7 +250,7 @@ static void vdpasim_kick_vq(struct vdpa_device *vdpa, u16 idx) } if (vq->ready) - schedule_work(&vdpasim->work); + vdpasim_schedule_work(vdpasim); } static void vdpasim_set_vq_cb(struct vdpa_device *vdpa, u16 idx, diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c b/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c index 5117959bed8a..eb4897c8541e 100644 --- a/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c +++ b/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c @@ -11,7 +11,6 @@ #include #include #include -#include #include #include #include @@ -286,9 +285,8 @@ static bool vdpasim_blk_handle_req(struct vdpasim *vdpasim, return handled; } -static void vdpasim_blk_work(struct work_struct *work) +static void vdpasim_blk_work(struct vdpasim *vdpasim) { - struct vdpasim *vdpasim = container_of(work, struct vdpasim, work); bool reschedule = false; int i; @@ -326,7 +324,7 @@ static void vdpasim_blk_work(struct work_struct *work) spin_unlock(&vdpasim->lock); if (reschedule) - schedule_work(&vdpasim->work); + vdpasim_schedule_work(vdpasim); } static void vdpasim_blk_get_config(struct vdpasim *vdpasim, void *config) diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim_net.c b/drivers/vdpa/vdpa_sim/vdpa_sim_net.c index 862f405362de..e61a9ecbfafe 100644 --- a/drivers/vdpa/vdpa_sim/vdpa_sim_net.c +++ b/drivers/vdpa/vdpa_sim/vdpa_sim_net.c @@ -11,7 +11,6 @@ #include #include #include -#include #include #include #include @@ -192,9 +191,8 @@ static void vdpasim_handle_cvq(struct vdpasim *vdpasim) u64_stats_update_end(&net->cq_stats.syncp); } -static void vdpasim_net_work(struct work_struct *work) +static void vdpasim_net_work(struct vdpasim *vdpasim) { - struct vdpasim *vdpasim = container_of(work, struct vdpasim, work); struct vdpasim_virtqueue *txq = &vdpasim->vqs[1]; struct vdpasim_virtqueue *rxq = &vdpasim->vqs[0]; struct vdpasim_net *net = sim_to_net(vdpasim); @@ -260,7 +258,7 @@ static void vdpasim_net_work(struct work_struct *work) vdpasim_net_complete(rxq, write); if (tx_pkts > 4) { - schedule_work(&vdpasim->work); + vdpasim_schedule_work(vdpasim); goto out; } }