[SCSI] eliminate rphy allocation in favour of expander/end device allocation
This allows the removal of the contained flag and also does a bit of class renaming (sas_rphy->sas_device). Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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f013db3284
Коммит
2f8600dff2
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@ -699,7 +699,7 @@ sas_expander_simple_attr(component_revision_id, component_revision_id, "%u\n",
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sas_expander_simple_attr(level, level, "%d\n", int);
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static DECLARE_TRANSPORT_CLASS(sas_rphy_class,
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"sas_rphy", NULL, NULL, NULL);
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"sas_device", NULL, NULL, NULL);
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static int sas_rphy_match(struct attribute_container *cont, struct device *dev)
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{
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@ -740,9 +740,7 @@ static int sas_end_dev_match(struct attribute_container *cont,
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i = to_sas_internal(shost->transportt);
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return &i->end_dev_attr_cont.ac == cont &&
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rphy->identify.device_type == SAS_END_DEVICE &&
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/* FIXME: remove contained eventually */
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rphy->contained;
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rphy->identify.device_type == SAS_END_DEVICE;
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}
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static int sas_expander_match(struct attribute_container *cont,
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@ -766,49 +764,26 @@ static int sas_expander_match(struct attribute_container *cont,
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i = to_sas_internal(shost->transportt);
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return &i->expander_attr_cont.ac == cont &&
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(rphy->identify.device_type == SAS_EDGE_EXPANDER_DEVICE ||
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rphy->identify.device_type == SAS_FANOUT_EXPANDER_DEVICE) &&
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/* FIXME: remove contained eventually */
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rphy->contained;
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rphy->identify.device_type == SAS_FANOUT_EXPANDER_DEVICE);
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}
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static void sas_rphy_release(struct device *dev)
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static void sas_expander_release(struct device *dev)
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{
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struct sas_rphy *rphy = dev_to_rphy(dev);
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struct sas_expander_device *edev = rphy_to_expander_device(rphy);
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put_device(dev->parent);
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kfree(rphy);
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kfree(edev);
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}
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/**
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* sas_rphy_alloc -- allocates and initialize a SAS remote PHY structure
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* @parent: SAS PHY this remote PHY is conneted to
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*
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* Allocates an SAS remote PHY structure, connected to @parent.
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*
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* Returns:
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* SAS PHY allocated or %NULL if the allocation failed.
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*/
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struct sas_rphy *sas_rphy_alloc(struct sas_phy *parent)
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static void sas_end_device_release(struct device *dev)
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{
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struct Scsi_Host *shost = dev_to_shost(&parent->dev);
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struct sas_rphy *rphy;
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struct sas_rphy *rphy = dev_to_rphy(dev);
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struct sas_end_device *edev = rphy_to_end_device(rphy);
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rphy = kzalloc(sizeof(*rphy), GFP_KERNEL);
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if (!rphy) {
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put_device(&parent->dev);
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return NULL;
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}
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device_initialize(&rphy->dev);
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rphy->dev.parent = get_device(&parent->dev);
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rphy->dev.release = sas_rphy_release;
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sprintf(rphy->dev.bus_id, "rphy-%d:%d-%d",
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shost->host_no, parent->port_identifier, parent->number);
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transport_setup_device(&rphy->dev);
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return rphy;
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put_device(dev->parent);
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kfree(edev);
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}
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EXPORT_SYMBOL(sas_rphy_alloc);
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/**
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* sas_end_device_alloc - allocate an rphy for an end device
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@ -831,12 +806,10 @@ struct sas_rphy *sas_end_device_alloc(struct sas_phy *parent)
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device_initialize(&rdev->rphy.dev);
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rdev->rphy.dev.parent = get_device(&parent->dev);
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rdev->rphy.dev.release = sas_rphy_release;
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sprintf(rdev->rphy.dev.bus_id, "rphy-%d:%d-%d",
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rdev->rphy.dev.release = sas_end_device_release;
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sprintf(rdev->rphy.dev.bus_id, "end_device-%d:%d-%d",
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shost->host_no, parent->port_identifier, parent->number);
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rdev->rphy.identify.device_type = SAS_END_DEVICE;
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/* FIXME: mark the rphy as being contained in a larger structure */
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rdev->rphy.contained = 1;
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transport_setup_device(&rdev->rphy.dev);
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return &rdev->rphy;
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@ -869,15 +842,13 @@ struct sas_rphy *sas_expander_alloc(struct sas_phy *parent,
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device_initialize(&rdev->rphy.dev);
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rdev->rphy.dev.parent = get_device(&parent->dev);
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rdev->rphy.dev.release = sas_rphy_release;
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rdev->rphy.dev.release = sas_expander_release;
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mutex_lock(&sas_host->lock);
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rdev->rphy.scsi_target_id = sas_host->next_expander_id++;
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mutex_unlock(&sas_host->lock);
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sprintf(rdev->rphy.dev.bus_id, "expander-%d:%d",
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shost->host_no, rdev->rphy.scsi_target_id);
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rdev->rphy.identify.device_type = type;
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/* FIXME: mark the rphy as being contained in a larger structure */
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rdev->rphy.contained = 1;
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transport_setup_device(&rdev->rphy.dev);
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return &rdev->rphy;
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@ -950,7 +921,17 @@ void sas_rphy_free(struct sas_rphy *rphy)
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put_device(rphy->dev.parent);
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put_device(rphy->dev.parent);
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put_device(rphy->dev.parent);
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kfree(rphy);
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if (rphy->identify.device_type == SAS_END_DEVICE) {
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struct sas_end_device *edev = rphy_to_end_device(rphy);
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kfree(edev);
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} else {
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/* must be expander */
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struct sas_expander_device *edev =
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rphy_to_expander_device(rphy);
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kfree(edev);
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}
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}
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EXPORT_SYMBOL(sas_rphy_free);
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@ -1003,7 +984,8 @@ EXPORT_SYMBOL(sas_rphy_delete);
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*/
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int scsi_is_sas_rphy(const struct device *dev)
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{
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return dev->release == sas_rphy_release;
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return dev->release == sas_end_device_release ||
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dev->release == sas_expander_release;
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}
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EXPORT_SYMBOL(scsi_is_sas_rphy);
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@ -82,10 +82,6 @@ struct sas_rphy {
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struct sas_identify identify;
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struct list_head list;
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u32 scsi_target_id;
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/* temporary expedient: mark the rphy as being contained
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* within a type specific rphy
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* FIXME: pull this out when everything uses the containers */
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unsigned contained:1;
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};
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#define dev_to_rphy(d) \
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@ -145,7 +141,6 @@ extern int sas_phy_add(struct sas_phy *);
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extern void sas_phy_delete(struct sas_phy *);
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extern int scsi_is_sas_phy(const struct device *);
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extern struct sas_rphy *sas_rphy_alloc(struct sas_phy *);
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extern struct sas_rphy *sas_end_device_alloc(struct sas_phy *);
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extern struct sas_rphy *sas_expander_alloc(struct sas_phy *, enum sas_device_type);
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void sas_rphy_free(struct sas_rphy *);
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