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[1/3] s390x/css: use macro for event-information pending error recover code

Message ID 20170727015418.85407-2-bjsdjshi@linux.vnet.ibm.com
State New
Headers show

Commit Message

Dong Jia Shi July 27, 2017, 1:54 a.m. UTC
Let's use a macro for the ERC (error recover code) when generating a
Channel Subsystem Event-information pending CRW (channel report word).

Signed-off-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
---
 hw/s390x/css.c            | 2 +-
 include/hw/s390x/ioinst.h | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

Comments

Cornelia Huck July 27, 2017, 10:10 a.m. UTC | #1
On Thu, 27 Jul 2017 03:54:16 +0200
Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com> wrote:

> Let's use a macro for the ERC (error recover code) when generating a
> Channel Subsystem Event-information pending CRW (channel report word).

Sounds reasonable.

> 
> Signed-off-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
> ---
>  hw/s390x/css.c            | 2 +-
>  include/hw/s390x/ioinst.h | 5 +++--
>  2 files changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/hw/s390x/css.c b/hw/s390x/css.c
> index 6a42b95cee..5321ca016b 100644
> --- a/hw/s390x/css.c
> +++ b/hw/s390x/css.c
> @@ -2103,7 +2103,7 @@ void css_generate_chp_crws(uint8_t cssid, uint8_t chpid)
>  void css_generate_css_crws(uint8_t cssid)
>  {
>      if (!channel_subsys.sei_pending) {
> -        css_queue_crw(CRW_RSC_CSS, 0, 0, cssid);
> +        css_queue_crw(CRW_RSC_CSS, CRW_ERC_EVENT, 0, cssid);
>      }
>      channel_subsys.sei_pending = true;
>  }
> diff --git a/include/hw/s390x/ioinst.h b/include/hw/s390x/ioinst.h
> index 92d15655e4..c1d1052279 100644
> --- a/include/hw/s390x/ioinst.h
> +++ b/include/hw/s390x/ioinst.h
> @@ -201,8 +201,9 @@ typedef struct CRW {
>  #define CRW_FLAGS_MASK_A 0x0080
>  #define CRW_FLAGS_MASK_ERC 0x003f
>  
> -#define CRW_ERC_INIT 0x02
> -#define CRW_ERC_IPI  0x04
> +#define CRW_ERC_EVENT  0x00

OK, that matches the name the Linux kernel uses.

Do we want to add all ERCs while we're at it?

> +#define CRW_ERC_INIT   0x02
> +#define CRW_ERC_IPI    0x04
>  
>  #define CRW_RSC_SUBCH 0x3
>  #define CRW_RSC_CHP   0x4
Dong Jia Shi July 28, 2017, 7:12 a.m. UTC | #2
* Cornelia Huck <cohuck@redhat.com> [2017-07-27 12:10:17 +0200]:

[...]

> > diff --git a/include/hw/s390x/ioinst.h b/include/hw/s390x/ioinst.h
> > index 92d15655e4..c1d1052279 100644
> > --- a/include/hw/s390x/ioinst.h
> > +++ b/include/hw/s390x/ioinst.h
> > @@ -201,8 +201,9 @@ typedef struct CRW {
> >  #define CRW_FLAGS_MASK_A 0x0080
> >  #define CRW_FLAGS_MASK_ERC 0x003f
> >  
> > -#define CRW_ERC_INIT 0x02
> > -#define CRW_ERC_IPI  0x04
> > +#define CRW_ERC_EVENT  0x00
> 
> OK, that matches the name the Linux kernel uses.
A thief was caught by you. ;)

> 
> Do we want to add all ERCs while we're at it?
> 
> > +#define CRW_ERC_INIT   0x02
> > +#define CRW_ERC_IPI    0x04
No problem for me. I can do that by stealing again:

#define CRW_ERC_EVENT    0x00 /* event information pending */
#define CRW_ERC_AVAIL    0x01 /* available */
#define CRW_ERC_INIT     0x02 /* initialized */
#define CRW_ERC_TERROR   0x03 /* temporary error */
#define CRW_ERC_IPI      0x04 /* installed parm initialized */
#define CRW_ERC_TERM     0x05 /* terminal */
#define CRW_ERC_PERRN    0x06 /* perm. error, facility not init */
#define CRW_ERC_PERRI    0x07 /* perm. error, facility init */
#define CRW_ERC_PMOD     0x08 /* installed parameters modified */

Want the comment or not? I like them.

> >  
> >  #define CRW_RSC_SUBCH 0x3
> >  #define CRW_RSC_CHP   0x4
>
Cornelia Huck July 28, 2017, 7:26 a.m. UTC | #3
On Fri, 28 Jul 2017 15:12:25 +0800
Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com> wrote:

> * Cornelia Huck <cohuck@redhat.com> [2017-07-27 12:10:17 +0200]:

> > Do we want to add all ERCs while we're at it?
> >   
> > > +#define CRW_ERC_INIT   0x02
> > > +#define CRW_ERC_IPI    0x04  
> No problem for me. I can do that by stealing again:
> 
> #define CRW_ERC_EVENT    0x00 /* event information pending */
> #define CRW_ERC_AVAIL    0x01 /* available */
> #define CRW_ERC_INIT     0x02 /* initialized */
> #define CRW_ERC_TERROR   0x03 /* temporary error */
> #define CRW_ERC_IPI      0x04 /* installed parm initialized */
> #define CRW_ERC_TERM     0x05 /* terminal */
> #define CRW_ERC_PERRN    0x06 /* perm. error, facility not init */
> #define CRW_ERC_PERRI    0x07 /* perm. error, facility init */
> #define CRW_ERC_PMOD     0x08 /* installed parameters modified */
> 
> Want the comment or not? I like them.

Yes, just do it.

> 
> > >  
> > >  #define CRW_RSC_SUBCH 0x3
> > >  #define CRW_RSC_CHP   0x4  
> >   
>
diff mbox

Patch

diff --git a/hw/s390x/css.c b/hw/s390x/css.c
index 6a42b95cee..5321ca016b 100644
--- a/hw/s390x/css.c
+++ b/hw/s390x/css.c
@@ -2103,7 +2103,7 @@  void css_generate_chp_crws(uint8_t cssid, uint8_t chpid)
 void css_generate_css_crws(uint8_t cssid)
 {
     if (!channel_subsys.sei_pending) {
-        css_queue_crw(CRW_RSC_CSS, 0, 0, cssid);
+        css_queue_crw(CRW_RSC_CSS, CRW_ERC_EVENT, 0, cssid);
     }
     channel_subsys.sei_pending = true;
 }
diff --git a/include/hw/s390x/ioinst.h b/include/hw/s390x/ioinst.h
index 92d15655e4..c1d1052279 100644
--- a/include/hw/s390x/ioinst.h
+++ b/include/hw/s390x/ioinst.h
@@ -201,8 +201,9 @@  typedef struct CRW {
 #define CRW_FLAGS_MASK_A 0x0080
 #define CRW_FLAGS_MASK_ERC 0x003f
 
-#define CRW_ERC_INIT 0x02
-#define CRW_ERC_IPI  0x04
+#define CRW_ERC_EVENT  0x00
+#define CRW_ERC_INIT   0x02
+#define CRW_ERC_IPI    0x04
 
 #define CRW_RSC_SUBCH 0x3
 #define CRW_RSC_CHP   0x4