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SubjectRe: [PATCH 1/6] dma: bcm-sba-raid: Improve memory allocation in SBA RAID driver
On Thu, Jul 27, 2017 at 09:42:33AM +0530, Anup Patel wrote:
> On Wed, Jul 26, 2017 at 10:39 PM, Vinod Koul <vinod.koul@intel.com> wrote:
> > On Wed, Jul 26, 2017 at 11:06:39AM +0530, Anup Patel wrote:

> >> drivers/dma/bcm-sba-raid.c | 439 +++++++++++++++++++++++----------------------
> >> 1 file changed, 226 insertions(+), 213 deletions(-)
> >>
> >> diff --git a/drivers/dma/bcm-sba-raid.c b/drivers/dma/bcm-sba-raid.c
> >> index e41bbc7..6d15fed 100644
> >> --- a/drivers/dma/bcm-sba-raid.c
> >> +++ b/drivers/dma/bcm-sba-raid.c
> >> @@ -48,7 +48,8 @@
> >>
> >> #include "dmaengine.h"
> >>
> >> -/* SBA command related defines */
> >> +/* ====== Driver macros and defines ===== */
> >
> > why this noise, seems unrelated to the change!
>
> This is just minor beautification. Again, I will put this
> in separate patch.

Well you can't shove garlands under an unrelated change. By all means throw
the whole garden out there, but please as a separate patch

>
> >
> >> +
> >> #define SBA_TYPE_SHIFT 48
> >> #define SBA_TYPE_MASK GENMASK(1, 0)
> >> #define SBA_TYPE_A 0x0
> >> @@ -82,39 +83,41 @@
> >> #define SBA_CMD_WRITE_BUFFER 0xc
> >> #define SBA_CMD_GALOIS 0xe
> >>
> >> -/* Driver helper macros */
> >> +#define SBA_MAX_REQ_PER_MBOX_CHANNEL 8192
> >> +
> >> #define to_sba_request(tx) \
> >> container_of(tx, struct sba_request, tx)
> >> #define to_sba_device(dchan) \
> >> container_of(dchan, struct sba_device, dma_chan)
> >>
> >> -enum sba_request_state {
> >> - SBA_REQUEST_STATE_FREE = 1,
> >> - SBA_REQUEST_STATE_ALLOCED = 2,
> >> - SBA_REQUEST_STATE_PENDING = 3,
> >> - SBA_REQUEST_STATE_ACTIVE = 4,
> >> - SBA_REQUEST_STATE_RECEIVED = 5,
> >> - SBA_REQUEST_STATE_COMPLETED = 6,
> >> - SBA_REQUEST_STATE_ABORTED = 7,
> >> +/* ===== Driver data structures ===== */
> >> +
> >> +enum sba_request_flags {
> >> + SBA_REQUEST_STATE_FREE = 0x001,
> >> + SBA_REQUEST_STATE_ALLOCED = 0x002,
> >> + SBA_REQUEST_STATE_PENDING = 0x004,
> >> + SBA_REQUEST_STATE_ACTIVE = 0x008,
> >> + SBA_REQUEST_STATE_RECEIVED = 0x010,
> >> + SBA_REQUEST_STATE_COMPLETED = 0x020,
> >> + SBA_REQUEST_STATE_ABORTED = 0x040,
> >> + SBA_REQUEST_STATE_MASK = 0x0ff,
> >> + SBA_REQUEST_FENCE = 0x100,
> >
> > how does this help in mem alloctn?

??

--
~Vinod

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