From 11cc51835af0e6fbb2da9cb012bdaaa036497b7f Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Wed, 1 Feb 2012 00:23:10 -0800 Subject: [PATCH] isci: kill ->is_direct_attached 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 --- drivers/scsi/isci/host.h | 4 ++-- drivers/scsi/isci/remote_device.c | 29 +++++-------------------- drivers/scsi/isci/remote_device.h | 1 - drivers/scsi/isci/remote_node_context.c | 27 +++++++---------------- drivers/scsi/isci/request.c | 5 ++--- 5 files changed, 17 insertions(+), 49 deletions(-) diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index adbad69d1069..a9679ee7084b 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -55,6 +55,7 @@ #ifndef _SCI_HOST_H_ #define _SCI_HOST_H_ +#include #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; } diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index 8f501b0a81d6..71f509064737 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -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); diff --git a/drivers/scsi/isci/remote_device.h b/drivers/scsi/isci/remote_device.h index 58637ee08f55..4a67ff0eb94e 100644 --- a/drivers/scsi/isci/remote_device.h +++ b/drivers/scsi/isci/remote_device.h @@ -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 */ diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index 994ec0c25a74..8ce5a35891e1 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -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: diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index 2def1e3960f6..01844ef19656 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -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 -- 2.39.5