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| author | Dan Williams <dan.j.williams@intel.com> | 2011-12-20 01:03:48 -0800 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-02-19 14:11:33 -0600 |
| commit | 0b3e09da1350397f3f8b6fd839ab455b0b587451 (patch) | |
| tree | f822bb4dcaa52d5d568104932ee55ee136dcf039 /drivers/scsi/scsi_transport_sas.c | |
| parent | b52df4174dff7e587f6fbfb21e3c2cb57109e5cf (diff) | |
| download | linux-stable-0b3e09da1350397f3f8b6fd839ab455b0b587451.tar.gz linux-stable-0b3e09da1350397f3f8b6fd839ab455b0b587451.tar.bz2 linux-stable-0b3e09da1350397f3f8b6fd839ab455b0b587451.zip | |
[SCSI] libsas: perform sas-transport resets in shost->workq context
Extend the sas transport class to allow transport users to attach extra
data to a sas_phy (->hostdata). Use this area in libsas to move resets
to workq context in preparation for scheduling ata device resets through
libata-eh.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/scsi_transport_sas.c')
| -rw-r--r-- | drivers/scsi/scsi_transport_sas.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c index 9421bae8af1a..ab3bd0b5ffd9 100644 --- a/drivers/scsi/scsi_transport_sas.c +++ b/drivers/scsi/scsi_transport_sas.c @@ -652,9 +652,21 @@ sas_phy_linkerror_attr(running_disparity_error_count); sas_phy_linkerror_attr(loss_of_dword_sync_count); sas_phy_linkerror_attr(phy_reset_problem_count); +static int sas_phy_setup(struct transport_container *tc, struct device *dev, + struct device *cdev) +{ + struct sas_phy *phy = dev_to_phy(dev); + struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); + struct sas_internal *i = to_sas_internal(shost->transportt); + + if (i->f->phy_setup) + i->f->phy_setup(phy); + + return 0; +} static DECLARE_TRANSPORT_CLASS(sas_phy_class, - "sas_phy", NULL, NULL, NULL); + "sas_phy", sas_phy_setup, NULL, NULL); static int sas_phy_match(struct attribute_container *cont, struct device *dev) { @@ -678,7 +690,11 @@ static int sas_phy_match(struct attribute_container *cont, struct device *dev) static void sas_phy_release(struct device *dev) { struct sas_phy *phy = dev_to_phy(dev); + struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); + struct sas_internal *i = to_sas_internal(shost->transportt); + if (i->f->phy_release) + i->f->phy_release(phy); put_device(dev->parent); kfree(phy); } |