Hi Mina, On 12/18/23 03:40, Mina Almasry wrote:
Add an interface for the user to notify the kernel that it is done reading the devmem dmabuf frags returned as cmsg. The kernel will drop the reference on the frags to make them available for re-use. Signed-off-by: Willem de Bruijn <willemb@xxxxxxxxxx> Signed-off-by: Kaiyuan Zhang <kaiyuanz@xxxxxxxxxx> Signed-off-by: Mina Almasry <almasrymina@xxxxxxxxxx> --- Changes in v1: - devmemtoken -> dmabuf_token (David). - Use napi_pp_put_page() for refcounting (Yunsheng). - Fix build error with missing socket options on other asms. --- arch/alpha/include/uapi/asm/socket.h | 8 ++++- arch/mips/include/uapi/asm/socket.h | 6 ++++ arch/parisc/include/uapi/asm/socket.h | 6 ++++ arch/sparc/include/uapi/asm/socket.h | 6 ++++ include/uapi/asm-generic/socket.h | 1 + include/uapi/linux/uio.h | 4 +++ net/core/sock.c | 45 +++++++++++++++++++++++++++ 7 files changed, 75 insertions(+), 1 deletion(-)
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diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h index be264c2b1a11..6b8674399363 100644 --- a/arch/parisc/include/uapi/asm/socket.h +++ b/arch/parisc/include/uapi/asm/socket.h @@ -132,6 +132,12 @@ #define SO_PASSPIDFD 0x404A #define SO_PEERPIDFD 0x404B +#define SO_DEVMEM_DONTNEED 0x404C +#define SO_DEVMEM_LINEAR 0x404D +#define SCM_DEVMEM_LINEAR SO_DEVMEM_LINEAR +#define SO_DEVMEM_DMABUF 0x404E +#define SCM_DEVMEM_DMABUF SO_DEVMEM_DMABUF
Could you please change this ^^ for parisc to use the same constants as the generic version below (97-99). Although 0x404c is the logical successor, I'd prefer to be in sync with other generic code if possible... Thanks! Helge ...
diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h index 25a2f5255f52..1acb77780f10 100644 --- a/include/uapi/asm-generic/socket.h +++ b/include/uapi/asm-generic/socket.h @@ -135,6 +135,7 @@ #define SO_PASSPIDFD 76 #define SO_PEERPIDFD 77 +#define SO_DEVMEM_DONTNEED 97 #define SO_DEVMEM_LINEAR 98 #define SCM_DEVMEM_LINEAR SO_DEVMEM_LINEAR #define SO_DEVMEM_DMABUF 99
