On Mon, Nov 25, 2019 at 07:22:37AM -0800, Andrew Boyer wrote:
> This bit is defined in the kernel but not displayed by ibv_devinfo.
>
> Signed-off-by: Andrew Boyer <aboyer@xxxxxxxxxxx>
> libibverbs/examples/devinfo.c | 3 +++
> libibverbs/verbs.h | 1 +
> 2 files changed, 4 insertions(+)
>
> diff --git a/libibverbs/examples/devinfo.c b/libibverbs/examples/devinfo.c
> index bf53eac2..e3210f6e 100644
> +++ b/libibverbs/examples/devinfo.c
> @@ -220,6 +220,7 @@ static void print_device_cap_flags(uint32_t dev_cap_flags)
> IBV_DEVICE_RC_RNR_NAK_GEN |
> IBV_DEVICE_SRQ_RESIZE |
> IBV_DEVICE_N_NOTIFY_CQ |
> + IBV_DEVICE_LOCAL_DMA_LKEY |
> IBV_DEVICE_MEM_WINDOW |
> IBV_DEVICE_UD_IP_CSUM |
> IBV_DEVICE_XRC |
> @@ -260,6 +261,8 @@ static void print_device_cap_flags(uint32_t dev_cap_flags)
> printf("\t\t\t\t\tSRQ_RESIZE\n");
> if (dev_cap_flags & IBV_DEVICE_N_NOTIFY_CQ)
> printf("\t\t\t\t\tN_NOTIFY_CQ\n");
> + if (dev_cap_flags & IBV_DEVICE_LOCAL_DMA_LKEY)
> + printf("\t\t\t\t\tLOCAL_DMA_LKEY\n");
> if (dev_cap_flags & IBV_DEVICE_MEM_WINDOW)
> printf("\t\t\t\t\tMEM_WINDOW\n");
> if (dev_cap_flags & IBV_DEVICE_UD_IP_CSUM)
> diff --git a/libibverbs/verbs.h b/libibverbs/verbs.h
> index 7b8d4310..81e5812c 100644
> +++ b/libibverbs/verbs.h
> @@ -112,6 +112,7 @@ enum ibv_device_cap_flags {
> IBV_DEVICE_RC_RNR_NAK_GEN = 1 << 12,
> IBV_DEVICE_SRQ_RESIZE = 1 << 13,
> IBV_DEVICE_N_NOTIFY_CQ = 1 << 14,
> + IBV_DEVICE_LOCAL_DMA_LKEY = 1 << 15,
> IBV_DEVICE_MEM_WINDOW = 1 << 17,
> IBV_DEVICE_UD_IP_CSUM = 1 << 18,
> IBV_DEVICE_XRC = 1 << 20,
This flag really only has meaning for the kernel, it should come out
of the uapi at all.
It is a mistake that kernel internal bits have been mixed in with
userspace bits.
Jason
