diff options
| author | Luben Tuikov <ltuikov@yahoo.com> | 2011-09-22 09:41:36 -0700 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2011-10-02 12:23:11 -0500 |
| commit | ffaac8f45bfb2dffb78179baa5740de34058eef8 (patch) | |
| tree | 653f9eae24129d54ce4df0a67bc883ed16d93dac | |
| parent | 41e9a69641fb3fa86fa9277a179f3ad261d072f7 (diff) | |
| download | lwn-ffaac8f45bfb2dffb78179baa5740de34058eef8.tar.gz lwn-ffaac8f45bfb2dffb78179baa5740de34058eef8.zip | |
[SCSI] libsas: Allow expander T-T attachments
Allow expander table-to-table attachments for
expanders that support it.
Signed-off-by: Luben Tuikov <ltuikov@yahoo.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| -rw-r--r-- | drivers/scsi/libsas/sas_expander.c | 20 | ||||
| -rw-r--r-- | include/scsi/libsas.h | 3 | ||||
| -rw-r--r-- | include/scsi/sas.h | 14 |
3 files changed, 29 insertions, 8 deletions
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index f84084bba2f0..e8d0115a025a 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -329,6 +329,7 @@ static void ex_assign_report_general(struct domain_device *dev, dev->ex_dev.ex_change_count = be16_to_cpu(rg->change_count); dev->ex_dev.max_route_indexes = be16_to_cpu(rg->route_indexes); dev->ex_dev.num_phys = min(rg->num_phys, (u8)MAX_EXPANDER_PHYS); + dev->ex_dev.t2t_supp = rg->t2t_supp; dev->ex_dev.conf_route_table = rg->conf_route_table; dev->ex_dev.configuring = rg->configuring; memcpy(dev->ex_dev.enclosure_logical_id, rg->enclosure_logical_id, 8); @@ -1133,15 +1134,17 @@ static void sas_print_parent_topology_bug(struct domain_device *child, }; struct domain_device *parent = child->parent; - sas_printk("%s ex %016llx phy 0x%x <--> %s ex %016llx phy 0x%x " - "has %c:%c routing link!\n", + sas_printk("%s ex %016llx (T2T supp:%d) phy 0x%x <--> %s ex %016llx " + "(T2T supp:%d) phy 0x%x has %c:%c routing link!\n", ex_type[parent->dev_type], SAS_ADDR(parent->sas_addr), + parent->ex_dev.t2t_supp, parent_phy->phy_id, ex_type[child->dev_type], SAS_ADDR(child->sas_addr), + child->ex_dev.t2t_supp, child_phy->phy_id, ra_char[parent_phy->routing_attr], @@ -1238,10 +1241,15 @@ static int sas_check_parent_topology(struct domain_device *child) sas_print_parent_topology_bug(child, parent_phy, child_phy); res = -ENODEV; } - } else if (parent_phy->routing_attr == TABLE_ROUTING && - child_phy->routing_attr != SUBTRACTIVE_ROUTING) { - sas_print_parent_topology_bug(child, parent_phy, child_phy); - res = -ENODEV; + } else if (parent_phy->routing_attr == TABLE_ROUTING) { + if (child_phy->routing_attr == SUBTRACTIVE_ROUTING || + (child_phy->routing_attr == TABLE_ROUTING && + child_ex->t2t_supp && parent_ex->t2t_supp)) { + /* All good */; + } else { + sas_print_parent_topology_bug(child, parent_phy, child_phy); + res = -ENODEV; + } } break; case FANOUT_DEV: diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h index af0a1deac930..ac9d80c93c68 100644 --- a/include/scsi/libsas.h +++ b/include/scsi/libsas.h @@ -142,8 +142,11 @@ struct expander_device { u16 ex_change_count; u16 max_route_indexes; u8 num_phys; + + u8 t2t_supp:1; u8 configuring:1; u8 conf_route_table:1; + u8 enclosure_logical_id[8]; struct ex_phy *ex_phy; diff --git a/include/scsi/sas.h b/include/scsi/sas.h index a3001add0c66..07d504f3981c 100644 --- a/include/scsi/sas.h +++ b/include/scsi/sas.h @@ -349,7 +349,12 @@ struct report_general_resp { u8 conf_route_table:1; u8 configuring:1; - u8 _r_b:6; + u8 config_others:1; + u8 orej_retry_supp:1; + u8 stp_cont_awt:1; + u8 self_config:1; + u8 zone_config:1; + u8 t2t_supp:1; u8 _r_c; @@ -536,7 +541,12 @@ struct report_general_resp { u8 _r_a; u8 num_phys; - u8 _r_b:6; + u8 t2t_supp:1; + u8 zone_config:1; + u8 self_config:1; + u8 stp_cont_awt:1; + u8 orej_retry_supp:1; + u8 config_others:1; u8 configuring:1; u8 conf_route_table:1; |