From: Qiang Liu
These drivers set the DMA_INTERRUPT capability bit when requesting a DMA
controller channel. This was historical, and is no longer needed.
Recent changes to the drivers/dma/fsldma.c driver have removed support
for this flag. This makes the carma drivers unable to find a DMA chann
From: Qiang Liu
Fix a warning of unitialized value when compile with -Wuninitialized.
Cc: Dan Williams
Cc: Dan Williams
Cc: Vinod Koul
Cc: Li Yang
Signed-off-by: Qiang Liu
Reported-by: Kim Phillips
Acked-by: Ira W. Snyder
---
drivers/dma/fsldma.c |2 +-
1 files changed, 1 insertions(
From: Qiang Liu
The use of spin_lock_irqsave() is a stronger locking mechanism than is
required throughout the driver. The minimum locking required should be
used instead. Interrupts will be turned off and context will be saved,
there is needless to use irqsave.
Change all instances of spin_lock
From: Qiang Liu
Fix the potential risk when enable config NET_DMA and ASYNC_TX.
Async_tx is lack of support in current release process of dma descriptor,
all descriptors will be released whatever is acked or no-acked by async_tx,
so there is a potential race condition when dma engine is uesd by o
From: Qiang Liu
These functions will be modified in the next patch in the series. By
moving the function in a patch separate from the changes, it will make
review easier.
Cc: Dan Williams
Cc: Dan Williams
Cc: Vinod Koul
Cc: Li Yang
Signed-off-by: Ira W. Snyder
Signed-off-by: Qiang Liu
---
From: Qiang Liu
There are several places where descriptors are freed using identical
code. Put this code into a function to reduce code duplication.
Cc: Dan Williams
Cc: Dan Williams
Cc: Vinod Koul
Signed-off-by: Ira W. Snyder
---
drivers/dma/fsldma.c | 38
From: Qiang Liu
Delete attribute DMA_INTERRUPT because fsl-dma doesn't support this function,
exception will be thrown if talitos is used to offload xor at the same time.
Cc: Dan Williams
Cc: Vinod Koul
Cc: Li Yang
Signed-off-by: Qiang Liu
Acked-by: Ira W. Snyder
---
drivers/dma/fsldma.c |
From: Qiang Liu
Expose Talitos's XOR functionality to be used for RAID parity
calculation via the Async_tx layer.
Cc: Herbert Xu
Cc: David S. Miller
Signed-off-by: Dipen Dudhat
Signed-off-by: Maneesh Gupta
Signed-off-by: Kim Phillips
Signed-off-by: Vishnu Suresh
Signed-off-by: Qiang Liu
-
Hi all,
The following 8 patches enabling fsl-dma and talitos offload raid
operations for improving raid performance and balancing CPU load.
These patches include talitos, fsl-dma and carma module (caram uses
some features of fsl-dma).
Write performance will be improved by 25-30% tested by iozone
From: Qiang Liu
The use of spin_lock_irqsave() is a stronger locking mechanism than is
required throughout the driver. The minimum locking required should be
used instead. Interrupts will be turned off and context will be saved,
there is needless to use irqsave.
Change all instances of spin_lock
From: Qiang Liu
These drivers set the DMA_INTERRUPT capability bit when requesting a DMA
controller channel. This was historical, and is no longer needed.
Recent changes to the drivers/dma/fsldma.c driver have removed support
for this flag. This makes the carma drivers unable to find a DMA chann
From: Qiang Liu
Fix a warning of unitialized value when compile with -Wuninitialized.
Cc: Dan Williams
Cc: Dan Williams
Cc: Vinod Koul
Cc: Li Yang
Signed-off-by: Qiang Liu
Reported-by: Kim Phillips
Acked-by: Ira W. Snyder
---
drivers/dma/fsldma.c |2 +-
1 files changed, 1 insertions(
From: Qiang Liu
The use of spin_lock_irqsave() is a stronger locking mechanism than is
required throughout the driver. The minimum locking required should be
used instead. Interrupts will be turned off and context will be saved,
there is needless to use irqsave.
Change all instances of spin_lock
From: Qiang Liu
Fix the potential risk when enable config NET_DMA and ASYNC_TX.
Async_tx is lack of support in current release process of dma descriptor,
all descriptors will be released whatever is acked or no-acked by async_tx,
so there is a potential race condition when dma engine is uesd by o
From: Qiang Liu
These functions will be modified in the next patch in the series. By
moving the function in a patch separate from the changes, it will make
review easier.
Cc: Dan Williams
Cc: Dan Williams
Cc: Vinod Koul
Cc: Li Yang
Signed-off-by: Ira W. Snyder
Signed-off-by: Qiang Liu
---
From: Qiang Liu
There are several places where descriptors are freed using identical
code. Put this code into a function to reduce code duplication.
Cc: Dan Williams
Cc: Dan Williams
Cc: Vinod Koul
Signed-off-by: Ira W. Snyder
---
drivers/dma/fsldma.c | 38
From: Qiang Liu
Delete attribute DMA_INTERRUPT because fsl-dma doesn't support this function,
exception will be thrown if talitos is used to offload xor at the same time.
Cc: Dan Williams
Cc: Dan Williams
Cc: Vinod Koul
Cc: Li Yang
Signed-off-by: Qiang Liu
Acked-by: Ira W. Snyder
---
driv
From: Qiang Liu
Expose Talitos's XOR functionality to be used for RAID parity
calculation via the Async_tx layer.
Cc: Herbert Xu
Cc: David S. Miller
Signed-off-by: Dipen Dudhat
Signed-off-by: Maneesh Gupta
Signed-off-by: Kim Phillips
Signed-off-by: Vishnu Suresh
Signed-off-by: Qiang Liu
-
Hi all,
The following 8 patches enabling fsl-dma and talitos offload raid
operations for improving raid performance and balancing CPU load.
These patches include talitos, fsl-dma and carma module (caram uses
some features of fsl-dma).
Write performance will be improved by 25-30% tested by iozone
From: Qiang Liu
Fix a warning of unitialized value when compile with -Wuninitialized.
Cc: Dan Williams
Cc: Vinod Koul
Cc: Li Yang
Signed-off-by: Qiang Liu
Reported-by: Kim Phillips
---
drivers/dma/fsldma.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/dm
From: Qiang Liu
- use spin_lock_bh() is the right way to use async_tx api,
dma_run_dependencies() should not be protected by spin_lock_irqsave();
- use spin_lock_bh to instead of spin_lock_irqsave for improving performance,
There is not any place to access descriptor queues in fsl-dma ISR except
From: Qiang Liu
Move the function fsldma_cleanup_descriptor() and fsl_chan_xfer_ld_queue()
ahead of its invoke function for avoiding redundant definition.
Cc: Dan Williams
Cc: Vinod Koul
Cc: Li Yang
Signed-off-by: Qiang Liu
---
drivers/dma/fsldma.c | 252 +--
From: Qiang Liu
Fix the potential risk when enable config NET_DMA and ASYNC_TX.
Async_tx is lack of support in current release process of dma descriptor,
all descriptors will be released whatever is acked or no-acked by async_tx,
so there is a potential race condition when dma engine is uesd by o
From: Qiang Liu
Delete attribute DMA_INTERRUPT because fsl-dma doesn't support this function,
exception will be thrown if talitos is used to offload xor at the same time.
Cc: Dan Williams
Cc: Vinod Koul
Cc: Li Yang
Signed-off-by: Qiang Liu
Acked-by: Ira W. Snyder
---
drivers/dma/fsldma.c |
From: Qiang Liu
Expose Talitos's XOR functionality to be used for RAID parity
calculation via the Async_tx layer.
Cc: Herbert Xu
Cc: David S. Miller
Signed-off-by: Dipen Dudhat
Signed-off-by: Maneesh Gupta
Signed-off-by: Kim Phillips
Signed-off-by: Vishnu Suresh
Signed-off-by: Qiang Liu
-
Hi,
The following 6 patches enabling fsl-dma and talitos offload raid
operations for improving raid performance and balancing CPU load.
Write performance will be improved by 25-30% tested by iozone.
Write performance is improved about 2% after using spin_lock_bh replace
spin_lock_irqsave.
CPU loa
From: Qiang Liu
Add memory copy self test when probe device, fsl-dma will be disabled
if self test failed.
Cc: Dan Williams
Cc: Vinod Koul
Cc: Li Yang
Cc: Ira W. Snyder
Signed-off-by: Qiang Liu
---
drivers/dma/fsldma.c | 83 ++
1 files chan
From: Qiang Liu
Fix a warning of unitialized value when compile with -Wuninitialized.
Cc: Dan Williams
Cc: Vinod Koul
Cc: Li Yang
Signed-off-by: Qiang Liu
Cc: Kim Phillips
---
drivers/dma/fsldma.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/dma/fsldma.
From: Qiang Liu
- use spin_lock_bh() is the right way to use async_tx api,
dma_run_dependencies() should not be protected by spin_lock_irqsave();
- use spin_lock_bh to instead of spin_lock_irqsave for improving performance,
There is not any place to access descriptor queues in fsl-dma ISR except
From: Qiang Liu
Move the function fsldma_cleanup_descriptor() and fsl_chan_xfer_ld_queue()
ahead of its invoke function for avoiding redundant definition.
Cc: Dan Williams
Cc: Vinod Koul
Cc: Li Yang
Signed-off-by: Qiang Liu
---
drivers/dma/fsldma.c | 252 +--
From: Qiang Liu
Fix the potential risk when enable config NET_DMA and ASYNC_TX.
Async_tx is lack of support in current release process of dma descriptor,
all descriptors will be released whatever is acked or no-acked by async_tx,
so there is a potential race condition when dma engine is uesd by o
From: Qiang Liu
Delete attribute DMA_INTERRUPT because fsl-dma doesn't support this function,
exception will be thrown if talitos is used to offload xor at the same time.
Cc: Dan Williams
Cc: Vinod Koul
Cc: Li Yang
Signed-off-by: Qiang Liu
Acked-by: Ira W. Snyder
---
drivers/dma/fsldma.c |
Hi,
The following 7 patches enabling fsl-dma and talitos offload raid
operations for improving raid performance and balancing CPU load.
Write performance will be improved by 25-30% tested by iozone.
Write performance is improved about 2% after using spin_lock_bh replace
spin_lock_irqsave.
CPU loa
From: Qiang Liu
Expose Talitos's XOR functionality to be used for RAID parity
calculation via the Async_tx layer.
Cc: Herbert Xu
Cc: David S. Miller
Signed-off-by: Dipen Dudhat
Signed-off-by: Maneesh Gupta
Signed-off-by: Kim Phillips
Signed-off-by: Vishnu Suresh
Signed-off-by: Qiang Liu
-
From: Qiang Liu
Reduce interrupt signals through reset Interrupt Coalescing Control Reg.
Provide dynamic method to adjust interrupt signals and timer ticks by sysfs.
It is a tradeoff for different applications.
Signed-off-by: Qiang Liu
---
change for V2
support dynamic config interrupt
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