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authorArnd Bergmann <arnd@arndb.de>2011-10-20 15:14:25 +0200
committerArnd Bergmann <arnd@arndb.de>2011-10-20 15:14:25 +0200
commitb4cbb8a4e602ea77b0525d06eff89c6a6070dab3 (patch)
treea5dd723679582505ef3905c90f0c2c032d191b94 /drivers/scsi/isci/host.c
parent526b264163068f77c5f2409031f5e25caf3900a9 (diff)
parentc5d7a9230e5e277f262b6806b7f4d6b35de5a3fb (diff)
downloadop-kernel-dev-b4cbb8a4e602ea77b0525d06eff89c6a6070dab3.zip
op-kernel-dev-b4cbb8a4e602ea77b0525d06eff89c6a6070dab3.tar.gz
Merge branch 'imx-features-for-arnd' of git://git.pengutronix.de/git/imx/linux-2.6 into imx/devel
Conflicts: arch/arm/mach-mx5/clock-mx51-mx53.c arch/arm/mach-mx5/devices-imx53.h
Diffstat (limited to 'drivers/scsi/isci/host.c')
-rw-r--r--drivers/scsi/isci/host.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c
index 26072f1..6981b77 100644
--- a/drivers/scsi/isci/host.c
+++ b/drivers/scsi/isci/host.c
@@ -531,6 +531,9 @@ static void sci_controller_process_completions(struct isci_host *ihost)
break;
case SCU_COMPLETION_TYPE_EVENT:
+ sci_controller_event_completion(ihost, ent);
+ break;
+
case SCU_COMPLETION_TYPE_NOTIFY: {
event_cycle ^= ((event_get+1) & SCU_MAX_EVENTS) <<
(SMU_COMPLETION_QUEUE_GET_EVENT_CYCLE_BIT_SHIFT - SCU_MAX_EVENTS_SHIFT);
@@ -1091,6 +1094,7 @@ static void isci_host_completion_routine(unsigned long data)
struct isci_request *request;
struct isci_request *next_request;
struct sas_task *task;
+ u16 active;
INIT_LIST_HEAD(&completed_request_list);
INIT_LIST_HEAD(&errored_request_list);
@@ -1181,6 +1185,13 @@ static void isci_host_completion_routine(unsigned long data)
}
}
+ /* the coalesence timeout doubles at each encoding step, so
+ * update it based on the ilog2 value of the outstanding requests
+ */
+ active = isci_tci_active(ihost);
+ writel(SMU_ICC_GEN_VAL(NUMBER, active) |
+ SMU_ICC_GEN_VAL(TIMER, ISCI_COALESCE_BASE + ilog2(active)),
+ &ihost->smu_registers->interrupt_coalesce_control);
}
/**
@@ -1471,7 +1482,7 @@ static void sci_controller_ready_state_enter(struct sci_base_state_machine *sm)
struct isci_host *ihost = container_of(sm, typeof(*ihost), sm);
/* set the default interrupt coalescence number and timeout value. */
- sci_controller_set_interrupt_coalescence(ihost, 0x10, 250);
+ sci_controller_set_interrupt_coalescence(ihost, 0, 0);
}
static void sci_controller_ready_state_exit(struct sci_base_state_machine *sm)
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