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isci: kill ->is_direct_attached

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domain_device ->parent conveys the same information.

Occurrences of ->is_direct_attached appear next to incomplete open-coded
versions of dev_is_sata(), clean those up as well.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2012-02-01 00:23:10 -08:00
parent 14e99b4a3f
commit 11cc51835a
5 changed files with 17 additions and 49 deletions
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4
drivers/scsi/isci/host.h
View File

@ -55,6 +55,7 @@
#ifndef _SCI_HOST_H_
#define _SCI_HOST_H_
#include <scsi/sas_ata.h>
#include "remote_device.h"
#include "phy.h"
#include "isci.h"
@ -378,8 +379,7 @@ static inline int sci_remote_device_node_count(struct isci_remote_device *idev)
{
struct domain_device *dev = idev->domain_dev;
if ((dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) &&
!idev->is_direct_attached)
if (dev_is_sata(dev) && dev->parent)
return SCU_STP_REMOTE_NODE_COUNT;
return SCU_SSP_REMOTE_NODE_COUNT;
}

29
drivers/scsi/isci/remote_device.c
View File

@ -1113,33 +1113,20 @@ static enum sci_status sci_remote_device_da_construct(struct isci_port *iport,
{
enum sci_status status;
struct sci_port_properties properties;
struct domain_device *dev = idev->domain_dev;
sci_remote_device_construct(iport, idev);
/*
* This information is request to determine how many remote node context
* entries will be needed to store the remote node.
*/
idev->is_direct_attached = true;
sci_port_get_properties(iport, &properties);
/* Get accurate port width from port's phy mask for a DA device. */
idev->device_port_width = hweight32(properties.phy_mask);
status = sci_controller_allocate_remote_node_context(iport->owning_controller,
idev,
&idev->rnc.remote_node_index);
idev,
&idev->rnc.remote_node_index);
if (status != SCI_SUCCESS)
return status;
if (dev->dev_type == SAS_END_DEV || dev->dev_type == SATA_DEV ||
(dev->tproto & SAS_PROTOCOL_STP) || dev_is_expander(dev))
/* pass */;
else
return SCI_FAILURE_UNSUPPORTED_PROTOCOL;
idev->connection_rate = sci_port_get_max_allowed_speed(iport);
return SCI_SUCCESS;
@ -1171,19 +1158,13 @@ static enum sci_status sci_remote_device_ea_construct(struct isci_port *iport,
if (status != SCI_SUCCESS)
return status;
if (dev->dev_type == SAS_END_DEV || dev->dev_type == SATA_DEV ||
(dev->tproto & SAS_PROTOCOL_STP) || dev_is_expander(dev))
/* pass */;
else
return SCI_FAILURE_UNSUPPORTED_PROTOCOL;
/*
* For SAS-2 the physical link rate is actually a logical link
/* For SAS-2 the physical link rate is actually a logical link
* rate that incorporates multiplexing. The SCU doesn't
* incorporate multiplexing and for the purposes of the
* connection the logical link rate is that same as the
* physical. Furthermore, the SAS-2 and SAS-1.1 fields overlay
* one another, so this code works for both situations. */
* one another, so this code works for both situations.
*/
idev->connection_rate = min_t(u16, sci_port_get_max_allowed_speed(iport),
dev->linkrate);

1
drivers/scsi/isci/remote_device.h
View File

@ -94,7 +94,6 @@ struct isci_remote_device {
struct sci_base_state_machine sm;
u32 device_port_width;
enum sas_linkrate connection_rate;
bool is_direct_attached;
struct isci_port *owning_port;
struct sci_remote_node_context rnc;
/* XXX unify with device reference counting and delete */

27
drivers/scsi/isci/remote_node_context.c
View File

@ -131,7 +131,7 @@ static void sci_remote_node_context_construct_buffer(struct sci_remote_node_cont
rnc->ssp.arbitration_wait_time = 0;
if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) {
if (dev_is_sata(dev)) {
rnc->ssp.connection_occupancy_timeout =
ihost->user_parameters.stp_max_occupancy_timeout;
rnc->ssp.connection_inactivity_timeout =
@ -219,13 +219,12 @@ static void sci_remote_node_context_validate_context_buffer(struct sci_remote_no
rnc_buffer->ssp.is_valid = true;
if (!idev->is_direct_attached &&
(dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP))) {
if (dev_is_sata(dev) && dev->parent) {
sci_remote_device_post_request(idev, SCU_CONTEXT_COMMAND_POST_RNC_96);
} else {
sci_remote_device_post_request(idev, SCU_CONTEXT_COMMAND_POST_RNC_32);
if (idev->is_direct_attached)
if (!dev->parent)
sci_port_setup_transports(idev->owning_port,
sci_rnc->remote_node_index);
}
@ -287,10 +286,8 @@ static void sci_remote_node_context_resuming_state_enter(struct sci_base_state_m
* resume because of a target reset we also need to update
* the STPTLDARNI register with the RNi of the device
*/
if ((dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) &&
idev->is_direct_attached)
sci_port_setup_transports(idev->owning_port,
rnc->remote_node_index);
if (dev_is_sata(dev) && !dev->parent)
sci_port_setup_transports(idev->owning_port, rnc->remote_node_index);
sci_remote_device_post_request(idev, SCU_CONTEXT_COMMAND_POST_RNC_RESUME);
}
@ -553,18 +550,10 @@ enum sci_status sci_remote_node_context_resume(struct sci_remote_node_context *s
sci_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p);
/* TODO: consider adding a resume action of NONE, INVALIDATE, WRITE_TLCR */
if (dev->dev_type == SAS_END_DEV || dev_is_expander(dev))
if (dev_is_sata(dev) && dev->parent)
sci_change_state(&sci_rnc->sm, SCI_RNC_INVALIDATING);
else
sci_change_state(&sci_rnc->sm, SCI_RNC_RESUMING);
else if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) {
if (idev->is_direct_attached) {
/* @todo Fix this since I am being silly in writing to the STPTLDARNI register. */
sci_change_state(&sci_rnc->sm, SCI_RNC_RESUMING);
} else {
sci_change_state(&sci_rnc->sm, SCI_RNC_INVALIDATING);
}
} else
return SCI_FAILURE;
return SCI_SUCCESS;
}
case SCI_RNC_TX_RX_SUSPENDED:

5
drivers/scsi/isci/request.c
View File

@ -3193,7 +3193,7 @@ sci_io_request_construct(struct isci_host *ihost,
if (dev->dev_type == SAS_END_DEV)
/* pass */;
else if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP))
else if (dev_is_sata(dev))
memset(&ireq->stp.cmd, 0, sizeof(ireq->stp.cmd));
else if (dev_is_expander(dev))
/* pass */;
@ -3215,8 +3215,7 @@ enum sci_status sci_task_request_construct(struct isci_host *ihost,
/* Build the common part of the request */
sci_general_request_construct(ihost, idev, ireq);
if (dev->dev_type == SAS_END_DEV ||
dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) {
if (dev->dev_type == SAS_END_DEV || dev_is_sata(dev)) {
set_bit(IREQ_TMF, &ireq->flags);
memset(ireq->tc, 0, sizeof(struct scu_task_context));
} else