search for: scsi_cmd

...a.c b/drivers/scsi/hpsa.c > index 703f824584fe..c14dd4b6e598 100644 > --- a/drivers/scsi/hpsa.c > +++ b/drivers/scsi/hpsa.c > @@ -244,10 +244,6 @@ static struct hpsa_scsi_dev_t > *hpsa_find_device_by_sas_rphy(struct ctlr_info *h, > struct sas_rphy *rphy); > > -#define SCSI_CMD_BUSY ((struct scsi_cmnd *)&hpsa_cmd_busy) > -static const struct scsi_cmnd hpsa_cmd_busy; > -#define SCSI_CMD_IDLE ((struct scsi_cmnd *)&hpsa_cmd_idle) > -static const struct scsi_cmnd hpsa_cmd_idle; > static int number_of_controllers; > > static irqreturn_t do_hpsa_in...

...irtscsi_handle_param_change(struct virtio_scsi *vscsi, > scsi_device_put(sdev); > } > > +static void virtscsi_rescan_hotunplug(struct virtio_scsi *vscsi) > +{ > + struct scsi_device *sdev; > + struct Scsi_Host *shost = virtio_scsi_host(vscsi->vdev); > + unsigned char scsi_cmd[MAX_COMMAND_SIZE]; > + int result, inquiry_len, inq_result_len = 256; > + char *inq_result = kmalloc(inq_result_len, GFP_KERNEL); > + > + shost_for_each_device(sdev, shost) { > + inquiry_len = sdev->inquiry_len ? sdev->inquiry_len : 36; > + > + memset(scsi_cmd, 0, sizeo...

...VHOST_SCSI_PREALLOC_SGLS 2048 > #define VHOST_SCSI_PREALLOC_UPAGES 2048 > #define VHOST_SCSI_PREALLOC_PROT_SGLS 2048 > @@ -189,6 +188,9 @@ struct vhost_scsi_virtqueue { > * Writers must also take dev mutex and flush under it. > */ > int inflight_idx; > + struct vhost_scsi_cmd *scsi_cmds; > + struct sbitmap scsi_tags; > + int max_cmds; > }; > > struct vhost_scsi { > @@ -324,7 +326,9 @@ static void vhost_scsi_release_cmd(struct se_cmd *se_cmd) > { > struct vhost_scsi_cmd *tv_cmd = container_of(se_cmd, > struct vhost_scsi_cmd, tvc_se_...

...ers/scsi/virtio_scsi.c index 0e0910c5b9424..56875467e4984 100644 --- a/drivers/scsi/virtio_scsi.c +++ b/drivers/scsi/virtio_scsi.c @@ -100,7 +100,7 @@ static void virtscsi_compute_resid(struct scsi_cmnd *sc, u32 resid) scsi_set_resid(sc, resid); } -/** +/* * virtscsi_complete_cmd - finish a scsi_cmd and invoke scsi_done * * Called with vq_lock held. -- 2.25.1

...ers/scsi/virtio_scsi.c index 0e0910c5b9424..56875467e4984 100644 --- a/drivers/scsi/virtio_scsi.c +++ b/drivers/scsi/virtio_scsi.c @@ -100,7 +100,7 @@ static void virtscsi_compute_resid(struct scsi_cmnd *sc, u32 resid) scsi_set_resid(sc, resid); } -/** +/* * virtscsi_complete_cmd - finish a scsi_cmd and invoke scsi_done * * Called with vq_lock held. -- 2.25.1

...ers/scsi/virtio_scsi.c index 0e0910c5b9424..56875467e4984 100644 --- a/drivers/scsi/virtio_scsi.c +++ b/drivers/scsi/virtio_scsi.c @@ -100,7 +100,7 @@ static void virtscsi_compute_resid(struct scsi_cmnd *sc, u32 resid) scsi_set_resid(sc, resid); } -/** +/* * virtscsi_complete_cmd - finish a scsi_cmd and invoke scsi_done * * Called with vq_lock held. -- 2.25.1

...6875467e4984 100644 > --- a/drivers/scsi/virtio_scsi.c > +++ b/drivers/scsi/virtio_scsi.c > @@ -100,7 +100,7 @@ static void virtscsi_compute_resid(struct scsi_cmnd *sc, u32 resid) > scsi_set_resid(sc, resid); > } > > -/** > +/* > * virtscsi_complete_cmd - finish a scsi_cmd and invoke scsi_done > * > * Called with vq_lock held. > -- > 2.25.1

...om/0day-ci/linux git fetch --no-tags linux-review Mike-Christie/vhost-scsi-fixes-and-cleanups/20200922-031251 git checkout aef0e1e9298ab68f2d7bdf1afb9a376641b993d5 vim +/cpu +606 drivers/vhost/scsi.c 1a1ff8256af679c8 drivers/vhost/scsi.c Nicholas Bellinger 2015-01-31 572 static struct vhost_scsi_cmd * aef0e1e9298ab68f drivers/vhost/scsi.c Mike Christie 2020-09-21 573 vhost_scsi_get_cmd(struct vhost_virtqueue *vq, struct vhost_scsi_tpg *tpg, 95e7c4341b8e28da drivers/vhost/scsi.c Nicholas Bellinger 2014-02-22 574 unsigned char *cdb, u64 scsi_tag, u16 lun, u8 task_attr, 95...

...s. +The +\emph on +type +\emph default + of the request is either a read (VIRTIO_BLK_T_IN) +\change_inserted 0 1266495815 +, +\change_unchanged + +\change_deleted 0 1266495817 +or +\change_unchanged + a write (VIRTIO_BLK_T_OUT) +\change_inserted 0 1266497316 +, a scsi packet command (VIRTIO_BLK_T_SCSI_CMD or VIRTIO_BLK_T_SCSI_CMD_OUT +\begin_inset Foot +status open + +\begin_layout Plain Layout + +\change_inserted 0 1266497390 +the SCSI_CMD and SCSI_CMD_OUT types are equivalent, the device does not + distinguish between them +\change_unchanged + +\end_layout + +\end_inset + +) or a flush (VIRTIO_BLK...

...s. +The +\emph on +type +\emph default + of the request is either a read (VIRTIO_BLK_T_IN) +\change_inserted 0 1266495815 +, +\change_unchanged + +\change_deleted 0 1266495817 +or +\change_unchanged + a write (VIRTIO_BLK_T_OUT) +\change_inserted 0 1266497316 +, a scsi packet command (VIRTIO_BLK_T_SCSI_CMD or VIRTIO_BLK_T_SCSI_CMD_OUT +\begin_inset Foot +status open + +\begin_layout Plain Layout + +\change_inserted 0 1266497390 +the SCSI_CMD and SCSI_CMD_OUT types are equivalent, the device does not + distinguish between them +\change_unchanged + +\end_layout + +\end_inset + +) or a flush (VIRTIO_BLK...

...ixes-and-cleanups/20200922-031251 git checkout aef0e1e9298ab68f2d7bdf1afb9a376641b993d5 vim +/cpu +606 drivers/vhost/scsi.c 057cbf49a1f082 drivers/vhost/tcm_vhost.c Nicholas Bellinger 2012-07-18 571 1a1ff8256af679 drivers/vhost/scsi.c Nicholas Bellinger 2015-01-31 572 static struct vhost_scsi_cmd * aef0e1e9298ab6 drivers/vhost/scsi.c Mike Christie 2020-09-21 573 vhost_scsi_get_cmd(struct vhost_virtqueue *vq, struct vhost_scsi_tpg *tpg, 95e7c4341b8e28 drivers/vhost/scsi.c Nicholas Bellinger 2014-02-22 574 unsigned char *cdb, u64 scsi_tag, u16 lun, u8 task_attr, 95e7c4...

Hi all, this series adds multiqueue support to the virtio-scsi driver, based on Jason Wang's work on virtio-net. It uses a simple queue steering algorithm that expects one queue per CPU. LUNs in the same target always use the same queue (so that commands are not reordered); queue switching occurs when the request being queued is the only one for the target. Also based on Jason's

Hi all, this series adds multiqueue support to the virtio-scsi driver, based on Jason Wang's work on virtio-net. It uses a simple queue steering algorithm that expects one queue per CPU. LUNs in the same target always use the same queue (so that commands are not reordered); queue switching occurs when the request being queued is the only one for the target. Also based on Jason's

OK, this is (ab)uses some of Paolo's patches. The first 7 are candidates for this merge window (maybe), the rest I'm not so sure about. Thanks, Rusty. Paolo Bonzini (3): scatterlist: introduce sg_unmark_end virtio-blk: reorganize virtblk_add_req virtio-blk: use virtqueue_add_sgs on req path Rusty Russell (13): virtio_ring: virtqueue_add_sgs, to add multiple sgs. virtio-blk:

OK, this is (ab)uses some of Paolo's patches. The first 7 are candidates for this merge window (maybe), the rest I'm not so sure about. Thanks, Rusty. Paolo Bonzini (3): scatterlist: introduce sg_unmark_end virtio-blk: reorganize virtblk_add_req virtio-blk: use virtqueue_add_sgs on req path Rusty Russell (13): virtio_ring: virtqueue_add_sgs, to add multiple sgs. virtio-blk:

The virtqueue_add_buf function has two limitations: 1) it requires the caller to provide all the buffers in a single call; 2) it does not support chained scatterlists: the buffers must be provided as an array of struct scatterlist. Because of these limitations, virtio-scsi has to copy each request into a scatterlist internal to the driver. It cannot just use the one that was prepared by the

The virtqueue_add_buf function has two limitations: 1) it requires the caller to provide all the buffers in a single call; 2) it does not support chained scatterlists: the buffers must be provided as an array of struct scatterlist. Because of these limitations, virtio-scsi has to copy each request into a scatterlist internal to the driver. It cannot just use the one that was prepared by the

The following patches were built over linux-next which contains various vhost patches in mst's tree and the vhost_task patchset in Christian Brauner's tree: git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux.git kernel.user_worker branch: https://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux.git/log/?h=kernel.user_worker The latter patchset handles the review comment

Most device drivers do not need to perform any postprocessing on the scatterlists they receive from higher-level drivers (e.g. the block or SCSI layer), because they translate the request metadata directly from the various C structs into the data that is required by the device. virtio devices however do this translation in two steps: a device-specific step in the device driver, and generic

Most device drivers do not need to perform any postprocessing on the scatterlists they receive from higher-level drivers (e.g. the block or SCSI layer), because they translate the request metadata directly from the various C structs into the data that is required by the device. virtio devices however do this translation in two steps: a device-specific step in the device driver, and generic