Re: [V3 PATCH 01/16] powerpc/powernv/vas: Rename register/unregister functions
On Mon, 2021-05-10 at 15:10 +1000, Nicholas Piggin wrote:
> Excerpts from Haren Myneni's message of April 18, 2021 7:00 am:
> > powerNV and pseries drivers register / unregister to the
> > corresponding
> > VAS code separately. So rename powerNV VAS API register/unregister
> > functions.
>
> The pseries VAS driver will have different calls for registering a
> coprocessor driver, you mean?
>
> It certainly looks the same
>
> (from patch 13)
> ret = vas_register_api_pseries(THIS_MODULE, VAS_COP_TYPE_GZIP,
> "nx-gzip");
>
> So I guess it's just a matter of the driver being different enough
> that
> there is no benefit to making this call common (and branching to
> pseries
> or powernv dynamically).
Thanks for your review and comments on all patches.
Yes, we have separate drivers nx-common-powernv/nx-common-pseries for
powerNV and pseries.
API registeration patch is:
- driver calls platform specific API
vas_register_api_powernv/pseries
- Platform specific code calls common API with its vas_user_win_ops
vas_register_coproc_api()
>
> Reviewed-by: Nicholas Piggin
>
> > Signed-off-by: Haren Myneni
> > ---
> > arch/powerpc/include/asm/vas.h | 6 +++---
> > arch/powerpc/platforms/powernv/vas-api.c | 10 +-
> > drivers/crypto/nx/nx-common-powernv.c| 6 +++---
> > 3 files changed, 11 insertions(+), 11 deletions(-)
> >
> > diff --git a/arch/powerpc/include/asm/vas.h
> > b/arch/powerpc/include/asm/vas.h
> > index e33f80b0ea81..41f73fae7ab8 100644
> > --- a/arch/powerpc/include/asm/vas.h
> > +++ b/arch/powerpc/include/asm/vas.h
> > @@ -170,8 +170,8 @@ int vas_paste_crb(struct vas_window *win, int
> > offset, bool re);
> > * Only NX GZIP coprocessor type is supported now, but this API
> > can be
> > * used for others in future.
> > */
> > -int vas_register_coproc_api(struct module *mod, enum vas_cop_type
> > cop_type,
> > - const char *name);
> > -void vas_unregister_coproc_api(void);
> > +int vas_register_api_powernv(struct module *mod, enum vas_cop_type
> > cop_type,
> > +const char *name);
> > +void vas_unregister_api_powernv(void);
> >
> > #endif /* __ASM_POWERPC_VAS_H */
> > diff --git a/arch/powerpc/platforms/powernv/vas-api.c
> > b/arch/powerpc/platforms/powernv/vas-api.c
> > index 98ed5d8c5441..72d8ce39e56c 100644
> > --- a/arch/powerpc/platforms/powernv/vas-api.c
> > +++ b/arch/powerpc/platforms/powernv/vas-api.c
> > @@ -207,8 +207,8 @@ static struct file_operations coproc_fops = {
> > * Supporting only nx-gzip coprocessor type now, but this API code
> > * extended to other coprocessor types later.
> > */
> > -int vas_register_coproc_api(struct module *mod, enum vas_cop_type
> > cop_type,
> > - const char *name)
> > +int vas_register_api_powernv(struct module *mod, enum vas_cop_type
> > cop_type,
> > +const char *name)
> > {
> > int rc = -EINVAL;
> > dev_t devno;
> > @@ -262,9 +262,9 @@ int vas_register_coproc_api(struct module *mod,
> > enum vas_cop_type cop_type,
> > unregister_chrdev_region(coproc_device.devt, 1);
> > return rc;
> > }
> > -EXPORT_SYMBOL_GPL(vas_register_coproc_api);
> > +EXPORT_SYMBOL_GPL(vas_register_api_powernv);
> >
> > -void vas_unregister_coproc_api(void)
> > +void vas_unregister_api_powernv(void)
> > {
> > dev_t devno;
> >
> > @@ -275,4 +275,4 @@ void vas_unregister_coproc_api(void)
> > class_destroy(coproc_device.class);
> > unregister_chrdev_region(coproc_device.devt, 1);
> > }
> > -EXPORT_SYMBOL_GPL(vas_unregister_coproc_api);
> > +EXPORT_SYMBOL_GPL(vas_unregister_api_powernv);
> > diff --git a/drivers/crypto/nx/nx-common-powernv.c
> > b/drivers/crypto/nx/nx-common-powernv.c
> > index 13c65deda8e9..88d728415bb2 100644
> > --- a/drivers/crypto/nx/nx-common-powernv.c
> > +++ b/drivers/crypto/nx/nx-common-powernv.c
> > @@ -1090,8 +1090,8 @@ static __init int
> > nx_compress_powernv_init(void)
> > * normal FIFO priority is assigned for userspace.
> > * 842 compression is supported only in kernel.
> > */
> > - ret = vas_register_coproc_api(THIS_MODULE,
> > VAS_COP_TYPE_GZIP,
> > - "nx-gzip");
> > + ret = vas_register_api_powernv(THIS_MODULE,
> > VAS_COP_TYPE_GZIP,
> > + "nx-gzip");
> >
> > /*
> > * GZIP is not supported in kernel right now.
> > @@ -1127,7 +1127,7 @@ static void __exit
> > nx_compress_powernv_exit(void)
> > * use. So delete this API use for GZIP engine.
> > */
> > if (!nx842_ct)
> > - vas_unregister_coproc_api();
> > + vas_unregister_api_powernv();
> >
> > crypto_unregister_alg(&nx842_powernv_alg);
> >
> > --
> > 2.18.2
> >
> >
> >
Re: [V3 PATCH 01/16] powerpc/powernv/vas: Rename register/unregister functions
Excerpts from Haren Myneni's message of April 18, 2021 7:00 am:
>
> powerNV and pseries drivers register / unregister to the corresponding
> VAS code separately. So rename powerNV VAS API register/unregister
> functions.
The pseries VAS driver will have different calls for registering a
coprocessor driver, you mean?
It certainly looks the same
(from patch 13)
ret = vas_register_api_pseries(THIS_MODULE, VAS_COP_TYPE_GZIP,
"nx-gzip");
So I guess it's just a matter of the driver being different enough that
there is no benefit to making this call common (and branching to pseries
or powernv dynamically).
Reviewed-by: Nicholas Piggin
>
> Signed-off-by: Haren Myneni
> ---
> arch/powerpc/include/asm/vas.h | 6 +++---
> arch/powerpc/platforms/powernv/vas-api.c | 10 +-
> drivers/crypto/nx/nx-common-powernv.c| 6 +++---
> 3 files changed, 11 insertions(+), 11 deletions(-)
>
> diff --git a/arch/powerpc/include/asm/vas.h b/arch/powerpc/include/asm/vas.h
> index e33f80b0ea81..41f73fae7ab8 100644
> --- a/arch/powerpc/include/asm/vas.h
> +++ b/arch/powerpc/include/asm/vas.h
> @@ -170,8 +170,8 @@ int vas_paste_crb(struct vas_window *win, int offset,
> bool re);
> * Only NX GZIP coprocessor type is supported now, but this API can be
> * used for others in future.
> */
> -int vas_register_coproc_api(struct module *mod, enum vas_cop_type cop_type,
> - const char *name);
> -void vas_unregister_coproc_api(void);
> +int vas_register_api_powernv(struct module *mod, enum vas_cop_type cop_type,
> + const char *name);
> +void vas_unregister_api_powernv(void);
>
> #endif /* __ASM_POWERPC_VAS_H */
> diff --git a/arch/powerpc/platforms/powernv/vas-api.c
> b/arch/powerpc/platforms/powernv/vas-api.c
> index 98ed5d8c5441..72d8ce39e56c 100644
> --- a/arch/powerpc/platforms/powernv/vas-api.c
> +++ b/arch/powerpc/platforms/powernv/vas-api.c
> @@ -207,8 +207,8 @@ static struct file_operations coproc_fops = {
> * Supporting only nx-gzip coprocessor type now, but this API code
> * extended to other coprocessor types later.
> */
> -int vas_register_coproc_api(struct module *mod, enum vas_cop_type cop_type,
> - const char *name)
> +int vas_register_api_powernv(struct module *mod, enum vas_cop_type cop_type,
> + const char *name)
> {
> int rc = -EINVAL;
> dev_t devno;
> @@ -262,9 +262,9 @@ int vas_register_coproc_api(struct module *mod, enum
> vas_cop_type cop_type,
> unregister_chrdev_region(coproc_device.devt, 1);
> return rc;
> }
> -EXPORT_SYMBOL_GPL(vas_register_coproc_api);
> +EXPORT_SYMBOL_GPL(vas_register_api_powernv);
>
> -void vas_unregister_coproc_api(void)
> +void vas_unregister_api_powernv(void)
> {
> dev_t devno;
>
> @@ -275,4 +275,4 @@ void vas_unregister_coproc_api(void)
> class_destroy(coproc_device.class);
> unregister_chrdev_region(coproc_device.devt, 1);
> }
> -EXPORT_SYMBOL_GPL(vas_unregister_coproc_api);
> +EXPORT_SYMBOL_GPL(vas_unregister_api_powernv);
> diff --git a/drivers/crypto/nx/nx-common-powernv.c
> b/drivers/crypto/nx/nx-common-powernv.c
> index 13c65deda8e9..88d728415bb2 100644
> --- a/drivers/crypto/nx/nx-common-powernv.c
> +++ b/drivers/crypto/nx/nx-common-powernv.c
> @@ -1090,8 +1090,8 @@ static __init int nx_compress_powernv_init(void)
>* normal FIFO priority is assigned for userspace.
>* 842 compression is supported only in kernel.
>*/
> - ret = vas_register_coproc_api(THIS_MODULE, VAS_COP_TYPE_GZIP,
> - "nx-gzip");
> + ret = vas_register_api_powernv(THIS_MODULE, VAS_COP_TYPE_GZIP,
> +"nx-gzip");
>
> /*
>* GZIP is not supported in kernel right now.
> @@ -1127,7 +1127,7 @@ static void __exit nx_compress_powernv_exit(void)
>* use. So delete this API use for GZIP engine.
>*/
> if (!nx842_ct)
> - vas_unregister_coproc_api();
> + vas_unregister_api_powernv();
>
> crypto_unregister_alg(&nx842_powernv_alg);
>
> --
> 2.18.2
>
>
>
[V3 PATCH 01/16] powerpc/powernv/vas: Rename register/unregister functions
powerNV and pseries drivers register / unregister to the corresponding
VAS code separately. So rename powerNV VAS API register/unregister
functions.
Signed-off-by: Haren Myneni
---
arch/powerpc/include/asm/vas.h | 6 +++---
arch/powerpc/platforms/powernv/vas-api.c | 10 +-
drivers/crypto/nx/nx-common-powernv.c| 6 +++---
3 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/arch/powerpc/include/asm/vas.h b/arch/powerpc/include/asm/vas.h
index e33f80b0ea81..41f73fae7ab8 100644
--- a/arch/powerpc/include/asm/vas.h
+++ b/arch/powerpc/include/asm/vas.h
@@ -170,8 +170,8 @@ int vas_paste_crb(struct vas_window *win, int offset, bool
re);
* Only NX GZIP coprocessor type is supported now, but this API can be
* used for others in future.
*/
-int vas_register_coproc_api(struct module *mod, enum vas_cop_type cop_type,
- const char *name);
-void vas_unregister_coproc_api(void);
+int vas_register_api_powernv(struct module *mod, enum vas_cop_type cop_type,
+const char *name);
+void vas_unregister_api_powernv(void);
#endif /* __ASM_POWERPC_VAS_H */
diff --git a/arch/powerpc/platforms/powernv/vas-api.c
b/arch/powerpc/platforms/powernv/vas-api.c
index 98ed5d8c5441..72d8ce39e56c 100644
--- a/arch/powerpc/platforms/powernv/vas-api.c
+++ b/arch/powerpc/platforms/powernv/vas-api.c
@@ -207,8 +207,8 @@ static struct file_operations coproc_fops = {
* Supporting only nx-gzip coprocessor type now, but this API code
* extended to other coprocessor types later.
*/
-int vas_register_coproc_api(struct module *mod, enum vas_cop_type cop_type,
- const char *name)
+int vas_register_api_powernv(struct module *mod, enum vas_cop_type cop_type,
+const char *name)
{
int rc = -EINVAL;
dev_t devno;
@@ -262,9 +262,9 @@ int vas_register_coproc_api(struct module *mod, enum
vas_cop_type cop_type,
unregister_chrdev_region(coproc_device.devt, 1);
return rc;
}
-EXPORT_SYMBOL_GPL(vas_register_coproc_api);
+EXPORT_SYMBOL_GPL(vas_register_api_powernv);
-void vas_unregister_coproc_api(void)
+void vas_unregister_api_powernv(void)
{
dev_t devno;
@@ -275,4 +275,4 @@ void vas_unregister_coproc_api(void)
class_destroy(coproc_device.class);
unregister_chrdev_region(coproc_device.devt, 1);
}
-EXPORT_SYMBOL_GPL(vas_unregister_coproc_api);
+EXPORT_SYMBOL_GPL(vas_unregister_api_powernv);
diff --git a/drivers/crypto/nx/nx-common-powernv.c
b/drivers/crypto/nx/nx-common-powernv.c
index 13c65deda8e9..88d728415bb2 100644
--- a/drivers/crypto/nx/nx-common-powernv.c
+++ b/drivers/crypto/nx/nx-common-powernv.c
@@ -1090,8 +1090,8 @@ static __init int nx_compress_powernv_init(void)
* normal FIFO priority is assigned for userspace.
* 842 compression is supported only in kernel.
*/
- ret = vas_register_coproc_api(THIS_MODULE, VAS_COP_TYPE_GZIP,
- "nx-gzip");
+ ret = vas_register_api_powernv(THIS_MODULE, VAS_COP_TYPE_GZIP,
+ "nx-gzip");
/*
* GZIP is not supported in kernel right now.
@@ -1127,7 +1127,7 @@ static void __exit nx_compress_powernv_exit(void)
* use. So delete this API use for GZIP engine.
*/
if (!nx842_ct)
- vas_unregister_coproc_api();
+ vas_unregister_api_powernv();
crypto_unregister_alg(&nx842_powernv_alg);
--
2.18.2
