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| author | Kees Cook <kees+treewide@kernel.org> | 2026-09-02 15:31:14 -0700 |
|---|---|---|
| committer | Kees Cook <kees@kernel.org> | 2026-09-04 21:37:00 -0700 |
| commit | 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d (patch) | |
| tree | c65086f9bdcd48c6360fb7cb4598bca084da1f32 /include/rdma/opa_addr.h | |
| download | linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.tar.gz linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.zip | |
treewide: refresh kmalloc_obj() conversionsgrafted
This is another run of the Coccinelle script for converting kmalloc()
family of allocations to kmalloc_obj() via the existing rules in
scripts/coccinelle/api/kmalloc_objs.cocci
This catches both the set of kmalloc() uses added since the first
kmalloc_obj() conversions in v7.0 and adds a large group missed in the
first pass due to Coccinelle not interacting well with the cleanup.h
scoped_...() family of macros[1]. I worked around this with spatch's
"--macro-file" argument to a file with all the scoped_...() macros mapped
to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control
flow indicator I could find.
Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc,
riscv, and s390 with no new warnings.
Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1]
Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2]
Signed-off-by: Kees Cook <kees+treewide@kernel.org>
Diffstat (limited to 'include/rdma/opa_addr.h')
| -rw-r--r-- | include/rdma/opa_addr.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/include/rdma/opa_addr.h b/include/rdma/opa_addr.h new file mode 100644 index 000000000..c6bfa2640 --- /dev/null +++ b/include/rdma/opa_addr.h @@ -0,0 +1,91 @@ +/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ +/* + * Copyright(c) 2017 Intel Corporation. + */ + +#ifndef OPA_ADDR_H +#define OPA_ADDR_H + +#include <rdma/opa_smi.h> + +#define OPA_SPECIAL_OUI (0x00066AULL) +#define OPA_MAKE_ID(x) (cpu_to_be64(OPA_SPECIAL_OUI << 40 | (x))) +#define OPA_TO_IB_UCAST_LID(x) (((x) >= be16_to_cpu(IB_MULTICAST_LID_BASE)) \ + ? 0 : x) +#define OPA_GID_INDEX 0x1 +/** + * 0xF8 - 4 bits of multicast range and 1 bit for collective range + * Example: For 24 bit LID space, + * Multicast range: 0xF00000 to 0xF7FFFF + * Collective range: 0xF80000 to 0xFFFFFE + */ +#define OPA_MCAST_NR 0x4 /* Number of top bits set */ +#define OPA_COLLECTIVE_NR 0x1 /* Number of bits after MCAST_NR */ + +/** + * ib_is_opa_gid: Returns true if the top 24 bits of the gid + * contains the OPA_STL_OUI identifier. This identifies that + * the provided gid is a special purpose GID meant to carry + * extended LID information. + * + * @gid: The Global identifier + */ +static inline bool ib_is_opa_gid(const union ib_gid *gid) +{ + return ((be64_to_cpu(gid->global.interface_id) >> 40) == + OPA_SPECIAL_OUI); +} + +/** + * opa_get_lid_from_gid: Returns the last 32 bits of the gid. + * OPA devices use one of the gids in the gid table to also + * store the lid. + * + * @gid: The Global identifier + */ +static inline u32 opa_get_lid_from_gid(const union ib_gid *gid) +{ + return be64_to_cpu(gid->global.interface_id) & 0xFFFFFFFF; +} + +/** + * opa_is_extended_lid: Returns true if dlid or slid are + * extended. + * + * @dlid: The DLID + * @slid: The SLID + */ +static inline bool opa_is_extended_lid(__be32 dlid, __be32 slid) +{ + if ((be32_to_cpu(dlid) >= + be16_to_cpu(IB_MULTICAST_LID_BASE)) || + (be32_to_cpu(slid) >= + be16_to_cpu(IB_MULTICAST_LID_BASE))) + return true; + + return false; +} + +/* Get multicast lid base */ +static inline u32 opa_get_mcast_base(u32 nr_top_bits) +{ + return (be32_to_cpu(OPA_LID_PERMISSIVE) << (32 - nr_top_bits)); +} + +/* Check for a valid unicast LID for non-SM traffic types */ +static inline bool rdma_is_valid_unicast_lid(struct rdma_ah_attr *attr) +{ + if (attr->type == RDMA_AH_ATTR_TYPE_IB) { + if (!rdma_ah_get_dlid(attr) || + rdma_ah_get_dlid(attr) >= + be16_to_cpu(IB_MULTICAST_LID_BASE)) + return false; + } else if (attr->type == RDMA_AH_ATTR_TYPE_OPA) { + if (!rdma_ah_get_dlid(attr) || + rdma_ah_get_dlid(attr) >= + opa_get_mcast_base(OPA_MCAST_NR)) + return false; + } + return true; +} +#endif /* OPA_ADDR_H */ |
