From: Dan Williams <dan.j.williams@intel.com>
To: linux-scsi@vger.kernel.org
Cc: linux-ide@vger.kernel.org
Subject: [PATCH v8 10/13] libsas: add sas_eh_abort_handler
Date: Fri, 10 Feb 2012 00:45:30 -0800 [thread overview]
Message-ID: <20120210084530.25701.91058.stgit@dwillia2-linux.jf.intel.com> (raw)
In-Reply-To: <20120210084411.25701.94502.stgit@dwillia2-linux.jf.intel.com>
When recovering failed eh-cmnds let the lldd attempt an abort via
scsi_abort_eh_cmnd before escalating.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
drivers/scsi/libsas/sas_scsi_host.c | 21 +++++++++++++++++++++
include/scsi/libsas.h | 1 +
2 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index 1cabedc..82f7532 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -460,6 +460,27 @@ struct sas_phy *sas_get_local_phy(struct domain_device *dev)
}
EXPORT_SYMBOL_GPL(sas_get_local_phy);
+int sas_eh_abort_handler(struct scsi_cmnd *cmd)
+{
+ int res;
+ struct sas_task *task = TO_SAS_TASK(cmd);
+ struct Scsi_Host *host = cmd->device->host;
+ struct sas_internal *i = to_sas_internal(host->transportt);
+
+ if (current != host->ehandler)
+ return FAILED;
+
+ if (!i->dft->lldd_abort_task)
+ return FAILED;
+
+ res = i->dft->lldd_abort_task(task);
+ if (res == TMF_RESP_FUNC_SUCC || res == TMF_RESP_FUNC_COMPLETE)
+ return SUCCESS;
+
+ return FAILED;
+}
+EXPORT_SYMBOL_GPL(sas_eh_abort_handler);
+
/* Attempt to send a LUN reset message to a device */
int sas_eh_device_reset_handler(struct scsi_cmnd *cmd)
{
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 5f5ed1b..484bc52 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -674,6 +674,7 @@ void sas_unregister_dev(struct asd_sas_port *port, struct domain_device *);
void sas_init_dev(struct domain_device *);
void sas_task_abort(struct sas_task *);
+int sas_eh_abort_handler(struct scsi_cmnd *cmd);
int sas_eh_device_reset_handler(struct scsi_cmnd *cmd);
int sas_eh_bus_reset_handler(struct scsi_cmnd *cmd);
next prev parent reply other threads:[~2012-02-10 8:45 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-10 8:44 [PATCH v8 00/13] libsas error handling + discovery v8 Dan Williams
2012-02-10 8:44 ` [PATCH v8 01/13] libsas: close scsi_remove_target() vs libata-eh race Dan Williams
2012-02-10 18:32 ` Jeff Garzik
2012-02-10 19:09 ` Dan Williams
2012-02-10 8:44 ` [PATCH v8 02/13] libsas: improve debug statements Dan Williams
2012-02-10 8:44 ` [PATCH v8 03/13] libsas: async ata scanning Dan Williams
2012-02-10 18:34 ` Jeff Garzik
2012-02-10 8:45 ` [PATCH v8 04/13] libsas: set attached device type and target protocols for local phys Dan Williams
2012-02-10 8:45 ` [PATCH v8 05/13] libsas: fixup target_port_protocols for expanders that don't report sata Dan Williams
2012-02-10 8:45 ` [PATCH v8 06/13] libsas: don't recover end devices attached to disabled phys Dan Williams
2012-02-10 8:45 ` [PATCH v8 07/13] scsi_transport_sas: 'enable' phys on reset Dan Williams
2012-02-10 8:45 ` [PATCH v8 08/13] libsas: libsas.force_hard_reset module parameter Dan Williams
2012-02-29 21:55 ` James Bottomley
2012-02-29 22:40 ` Douglas Gilbert
2012-02-29 23:27 ` Dan Williams
2012-03-01 0:23 ` Douglas Gilbert
2012-03-01 0:35 ` Dan Williams
2012-02-29 23:22 ` Dan Williams
2012-03-01 14:27 ` James Bottomley
2012-02-10 8:45 ` [PATCH v8 09/13] libsas: enforce eh strategy handlers only in eh context Dan Williams
2012-02-29 22:05 ` James Bottomley
2012-03-01 0:28 ` Dan Williams
2012-03-01 14:29 ` James Bottomley
2012-03-06 19:17 ` Dan Williams
2012-02-10 8:45 ` Dan Williams [this message]
2012-02-10 8:45 ` [PATCH v8 11/13] libsas: use ->lldd_I_T_nexus_reset for ->eh_bus_reset_handler Dan Williams
2012-02-10 8:45 ` [PATCH v8 12/13] isci: use sas eh strategy handlers Dan Williams
2012-02-10 8:45 ` [PATCH v8 13/13] libsas: trim sas_task of slow path infrastructure Dan Williams
2012-02-15 1:09 ` Jack Wang
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