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Diffstat (limited to 'arch/s390/include/asm/pnet.h')
| -rw-r--r-- | arch/s390/include/asm/pnet.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/s390/include/asm/pnet.h b/arch/s390/include/asm/pnet.h new file mode 100644 index 0000000000000..6e278584f8f1d --- /dev/null +++ b/arch/s390/include/asm/pnet.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * IBM System z PNET ID Support + * + * Copyright IBM Corp. 2018 + */ + +#ifndef _ASM_S390_PNET_H +#define _ASM_S390_PNET_H + +#include <linux/device.h> +#include <linux/types.h> + +#define PNETIDS_LEN 64 /* Total utility string length in bytes + * to cover up to 4 PNETIDs of 16 bytes + * for up to 4 device ports + */ +#define MAX_PNETID_LEN 16 /* Max.length of a single port PNETID */ +#define MAX_PNETID_PORTS (PNETIDS_LEN / MAX_PNETID_LEN) + /* Max. # of ports with a PNETID */ + +int pnet_id_by_dev_port(struct device *dev, unsigned short port, u8 *pnetid); +#endif /* _ASM_S390_PNET_H */ |