diff options
author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2017-06-27 00:50:16 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2017-06-27 15:48:47 -0400 |
commit | 064dc3196ebd2587ad9a4ca2d26629a20f819352 (patch) | |
tree | f17ad6740dbd94ef4b217aa21120bbfe1d125bae /drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c | |
parent | nfp: explicitly check if application FW is loaded (diff) | |
download | linux-dev-064dc3196ebd2587ad9a4ca2d26629a20f819352.tar.xz linux-dev-064dc3196ebd2587ad9a4ca2d26629a20f819352.zip |
nfp: move area mapping helper into nfpcore
nfp_net_map_area() is a helper for mapping areas of NFP memory
defined in nfp_net_main.c. Move it to nfpcore to allow reuse
and rename accordingly. Create an additional helper -
nfp_cpp_area_alloc_acquire() the opposite of already existing
nfp_cpp_area_release_free().
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c')
-rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c index 9b69dcf87be9..7d5d7293efed 100644 --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c @@ -361,6 +361,41 @@ nfp_cpp_area_alloc(struct nfp_cpp *cpp, u32 dest, } /** + * nfp_cpp_area_alloc_acquire() - allocate a new CPP area and lock it down + * @cpp: CPP handle + * @name: Name of region + * @dest: CPP id + * @address: Start address on CPP target + * @size: Size of area + * + * Allocate and initialize a CPP area structure, and lock it down so + * that it can be accessed directly. + * + * NOTE: @address and @size must be 32-bit aligned values. + * + * NOTE: The area must also be 'released' when the structure is freed. + * + * Return: NFP CPP Area handle, or NULL + */ +struct nfp_cpp_area * +nfp_cpp_area_alloc_acquire(struct nfp_cpp *cpp, const char *name, u32 dest, + unsigned long long address, unsigned long size) +{ + struct nfp_cpp_area *area; + + area = nfp_cpp_area_alloc_with_name(cpp, dest, name, address, size); + if (!area) + return NULL; + + if (nfp_cpp_area_acquire(area)) { + nfp_cpp_area_free(area); + return NULL; + } + + return area; +} + +/** * nfp_cpp_area_free() - free up the CPP area * @area: CPP area handle * |