On Tue, Apr 01, 2025 at 06:29:31PM +0200, Heinrich Schuchardt wrote: > On 01.04.25 10:00, Varadarajan Narayanan wrote: > > Add a function to obtain the block device for SCSI. > > > > Signed-off-by: Varadarajan Narayanan <[email protected]> > > --- > > drivers/scsi/scsi-uclass.c | 30 ++++++++++++++++++++++++++++++ > > include/scsi.h | 12 ++++++++++++ > > 2 files changed, 42 insertions(+) > > > > diff --git a/drivers/scsi/scsi-uclass.c b/drivers/scsi/scsi-uclass.c > > index 1ee8236c05c..c2e34082bce 100644 > > --- a/drivers/scsi/scsi-uclass.c > > +++ b/drivers/scsi/scsi-uclass.c > > @@ -10,7 +10,9 @@ > > > > #define LOG_CATEGORY UCLASS_SCSI > > > > +#include <blk.h> > > #include <dm.h> > > +#include <part.h> > > #include <scsi.h> > > > > int scsi_exec(struct udevice *dev, struct scsi_cmd *pccb) > > @@ -23,6 +25,34 @@ int scsi_exec(struct udevice *dev, struct scsi_cmd *pccb) > > return ops->exec(dev, pccb); > > } > > > > +int scsi_get_blk(const char *partition_name, > > + struct blk_desc **blk_desc_ptr, > > + struct disk_partition *part_info_ptr) > > +{ > > + static int is_scsi_scanned; > > + struct blk_desc *blk; > > + int i, ret; > > + > > + if (!is_scsi_scanned) { > > + scsi_scan(false /* no verbose */); > > + is_scsi_scanned = 1; > > + } > > + > > + for (i = 0; i < blk_find_max_devnum(UCLASS_SCSI) + 1; i++) { > > + ret = blk_get_desc(UCLASS_SCSI, i, &blk); > > + if (ret) > > + continue; > > + > > + ret = part_get_info_by_name(blk, partition_name, part_info_ptr); > > + if (ret > 0) { > > + *blk_desc_ptr = blk; > > + return 0; > > + } > > + } > > + > > + return -1; > > +} > > + > > int scsi_bus_reset(struct udevice *dev) > > { > > struct scsi_ops *ops = scsi_get_ops(dev); > > diff --git a/include/scsi.h b/include/scsi.h > > index b18ae37b861..1ba55516588 100644 > > --- a/include/scsi.h > > +++ b/include/scsi.h > > @@ -9,6 +9,7 @@ > > #include <asm/cache.h> > > #include <bouncebuf.h> > > #include <linux/dma-direction.h> > > +#include <part.h> > > > > struct udevice; > > > > @@ -349,6 +350,17 @@ int scsi_scan(bool verbose); > > */ > > int scsi_scan_dev(struct udevice *dev, bool verbose); > > > > +/** > > + * scsi_get_blk() - Provides SCSI partition information. > > + * > > + * @partition_name: Partition name for fetching its info > > Partition names cannot be expected to be unique. > UUIDs should be.
Will change to UUID and post a new version. Thanks Varada
