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| author | Jason Yan <yanaijie@huawei.com> | 2022-09-28 09:01:24 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-10-18 05:28:09 +0200 |
| commit | 2d08f329a4f2eace6b041d60132f441fc8e0b616 (patch) | |
| tree | 23a1f2cb1a06757f5ca9829042440074e6400dde /drivers/scsi/libsas | |
| parent | scsi: libsas: Introduce SAS address comparison helpers (diff) | |
| download | linux-2d08f329a4f2eace6b041d60132f441fc8e0b616.tar.xz linux-2d08f329a4f2eace6b041d60132f441fc8e0b616.zip | |
scsi: libsas: Introduce sas_find_attached_phy_id() helper
LLDDs are all implementing their own attached phy ID finding code. Factor
it out to libsas.
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Link: https://lore.kernel.org/r/20220928070130.3657183-3-yanaijie@huawei.com
Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/libsas')
| -rw-r--r-- | drivers/scsi/libsas/sas_expander.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index 5ce251830104..7ffb42946335 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -2107,6 +2107,22 @@ int sas_ex_revalidate_domain(struct domain_device *port_dev) return res; } +int sas_find_attached_phy_id(struct expander_device *ex_dev, + struct domain_device *dev) +{ + struct ex_phy *phy; + int phy_id; + + for (phy_id = 0; phy_id < ex_dev->num_phys; phy_id++) { + phy = &ex_dev->ex_phy[phy_id]; + if (sas_phy_match_dev_addr(dev, phy)) + return phy_id; + } + + return -ENODEV; +} +EXPORT_SYMBOL_GPL(sas_find_attached_phy_id); + void sas_smp_handler(struct bsg_job *job, struct Scsi_Host *shost, struct sas_rphy *rphy) { |