diff options
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c index a2850344f8b4..2d15a7c9d0de 100644 --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c @@ -45,6 +45,13 @@ #include "nfp_cpp.h" #include "nfp6000/nfp6000.h" +#define NFP_RESOURCE_TBL_TARGET NFP_CPP_TARGET_MU +#define NFP_RESOURCE_TBL_BASE 0x8100000000ULL + +/* NFP Resource Table self-identifier */ +#define NFP_RESOURCE_TBL_NAME "nfp.res" +#define NFP_RESOURCE_TBL_KEY 0x00000000 /* Special key for entry 0 */ + #define NFP_RESOURCE_ENTRY_NAME_SZ 8 /** @@ -100,9 +107,11 @@ static int nfp_cpp_resource_find(struct nfp_cpp *cpp, struct nfp_resource *res) strncpy(name_pad, res->name, sizeof(name_pad)); /* Search for a matching entry */ - key = NFP_RESOURCE_TBL_KEY; - if (memcmp(name_pad, NFP_RESOURCE_TBL_NAME "\0\0\0\0\0\0\0\0", 8)) - key = crc32_posix(name_pad, sizeof(name_pad)); + if (!memcmp(name_pad, NFP_RESOURCE_TBL_NAME "\0\0\0\0\0\0\0\0", 8)) { + nfp_err(cpp, "Grabbing device lock not supported\n"); + return -EOPNOTSUPP; + } + key = crc32_posix(name_pad, sizeof(name_pad)); for (i = 0; i < NFP_RESOURCE_TBL_ENTRIES; i++) { u64 addr = NFP_RESOURCE_TBL_BASE + |