Re: [PATCH RFC 1/2] powerpc/pseries: papr-vpd char driver for VPD retrieval

2023-09-06 Thread Michal Suchánek
On Tue, Aug 22, 2023 at 04:33:39PM -0500, Nathan Lynch via B4 Relay wrote: > From: Nathan Lynch > > PowerVM LPARs may retrieve Vital Product Data (VPD) for system > components using the ibm,get-vpd RTAS function. > > We can expose this to user space with a /dev/papr-vpd character > device,

Re: [PATCH RFC 1/2] powerpc/pseries: papr-vpd char driver for VPD retrieval

2023-09-05 Thread Michal Suchánek
On Tue, Sep 05, 2023 at 12:42:11PM +1000, Michael Ellerman wrote: > Michal Suchánek writes: > > On Thu, Aug 31, 2023 at 12:59:25PM -0500, Nathan Lynch wrote: > ... > >> You (Michal) seem to favor a kernel-user ABI where user space is allowed > >> to invoke arbitrary RTAS functions by name. But we

Re: [PATCH RFC 1/2] powerpc/pseries: papr-vpd char driver for VPD retrieval

2023-09-04 Thread Michael Ellerman
Michal Suchánek writes: > On Thu, Aug 31, 2023 at 12:59:25PM -0500, Nathan Lynch wrote: ... >> You (Michal) seem to favor a kernel-user ABI where user space is allowed >> to invoke arbitrary RTAS functions by name. But we already have that in >> the form of the rtas() syscall. (User space looks

Re: [PATCH RFC 1/2] powerpc/pseries: papr-vpd char driver for VPD retrieval

2023-09-04 Thread Michal Suchánek
On Thu, Aug 31, 2023 at 03:34:37PM +1000, Michael Ellerman wrote: > Michal Suchánek writes: > > Hello, > > > > thanks for working on this. > > > > On Tue, Aug 22, 2023 at 04:33:39PM -0500, Nathan Lynch via B4 Relay wrote: > >> From: Nathan Lynch > >> > >> PowerVM LPARs may retrieve Vital

Re: [PATCH RFC 1/2] powerpc/pseries: papr-vpd char driver for VPD retrieval

2023-09-04 Thread Michal Suchánek
Hello, On Thu, Aug 31, 2023 at 12:59:25PM -0500, Nathan Lynch wrote: > Michal Suchánek writes: > > On Thu, Aug 31, 2023 at 09:37:12PM +1000, Michael Ellerman wrote: > >> Michal Suchánek writes: > >> > On Thu, Aug 31, 2023 at 03:34:37PM +1000, Michael Ellerman wrote: > >> >> Michal Suchánek

Re: [PATCH RFC 1/2] powerpc/pseries: papr-vpd char driver for VPD retrieval

2023-08-31 Thread Nathan Lynch
Michal Suchánek writes: > On Thu, Aug 31, 2023 at 09:37:12PM +1000, Michael Ellerman wrote: >> Michal Suchánek writes: >> > On Thu, Aug 31, 2023 at 03:34:37PM +1000, Michael Ellerman wrote: >> >> Michal Suchánek writes: >> >> > On Tue, Aug 22, 2023 at 04:33:39PM -0500, Nathan Lynch via B4 Relay

Re: [PATCH RFC 1/2] powerpc/pseries: papr-vpd char driver for VPD retrieval

2023-08-31 Thread Nathan Lynch
Michal Suchánek writes: > > thanks for working on this. Thanks for reviewing! > On Tue, Aug 22, 2023 at 04:33:39PM -0500, Nathan Lynch via B4 Relay wrote: >> From: Nathan Lynch >> >> PowerVM LPARs may retrieve Vital Product Data (VPD) for system >> components using the ibm,get-vpd RTAS

Re: [PATCH RFC 1/2] powerpc/pseries: papr-vpd char driver for VPD retrieval

2023-08-31 Thread Michal Suchánek
On Thu, Aug 31, 2023 at 09:37:12PM +1000, Michael Ellerman wrote: > Michal Suchánek writes: > > On Thu, Aug 31, 2023 at 03:34:37PM +1000, Michael Ellerman wrote: > >> Michal Suchánek writes: > >> > On Tue, Aug 22, 2023 at 04:33:39PM -0500, Nathan Lynch via B4 Relay > >> > wrote: > >> >> From:

Re: [PATCH RFC 1/2] powerpc/pseries: papr-vpd char driver for VPD retrieval

2023-08-31 Thread Michael Ellerman
Michal Suchánek writes: > On Thu, Aug 31, 2023 at 03:34:37PM +1000, Michael Ellerman wrote: >> Michal Suchánek writes: >> > On Tue, Aug 22, 2023 at 04:33:39PM -0500, Nathan Lynch via B4 Relay wrote: >> >> From: Nathan Lynch >> >> >> >> PowerVM LPARs may retrieve Vital Product Data (VPD) for

Re: [PATCH RFC 1/2] powerpc/pseries: papr-vpd char driver for VPD retrieval

2023-08-31 Thread Michal Suchánek
On Thu, Aug 31, 2023 at 03:34:37PM +1000, Michael Ellerman wrote: > Michal Suchánek writes: > > Hello, > > > > thanks for working on this. > > > > On Tue, Aug 22, 2023 at 04:33:39PM -0500, Nathan Lynch via B4 Relay wrote: > >> From: Nathan Lynch > >> > >> PowerVM LPARs may retrieve Vital

Re: [PATCH RFC 1/2] powerpc/pseries: papr-vpd char driver for VPD retrieval

2023-08-31 Thread Michal Suchánek
On Thu, Aug 31, 2023 at 03:34:37PM +1000, Michael Ellerman wrote: > Michal Suchánek writes: > > Hello, > > > > thanks for working on this. > > > > On Tue, Aug 22, 2023 at 04:33:39PM -0500, Nathan Lynch via B4 Relay wrote: > >> From: Nathan Lynch > >> > >> PowerVM LPARs may retrieve Vital

Re: [PATCH RFC 1/2] powerpc/pseries: papr-vpd char driver for VPD retrieval

2023-08-30 Thread Michael Ellerman
Michal Suchánek writes: > Hello, > > thanks for working on this. > > On Tue, Aug 22, 2023 at 04:33:39PM -0500, Nathan Lynch via B4 Relay wrote: >> From: Nathan Lynch >> >> PowerVM LPARs may retrieve Vital Product Data (VPD) for system >> components using the ibm,get-vpd RTAS function. >> >> We

Re: [PATCH RFC 1/2] powerpc/pseries: papr-vpd char driver for VPD retrieval

2023-08-30 Thread Michal Suchánek
Hello, thanks for working on this. On Tue, Aug 22, 2023 at 04:33:39PM -0500, Nathan Lynch via B4 Relay wrote: > From: Nathan Lynch > > PowerVM LPARs may retrieve Vital Product Data (VPD) for system > components using the ibm,get-vpd RTAS function. > > We can expose this to user space with a