drivers/crypto/bcm/spu.c

File Facts

System

Linux kernel

Corpus path

drivers/crypto/bcm/spu.c

Extension

.c

Size

36571 bytes

Lines

1210

Domain

Driver Families

Bucket

drivers/crypto

Inferred role

Driver Families: implementation source

Status

source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/kernel.h
• linux/string.h
• util.h
• spu.h
• spum.h
• cipher.h

Detected Declarations

• function spum_dump_msg_hdr
• function spum_ns2_ctx_max_payload
• function spum_nsp_ctx_max_payload
• function spum_payload_length
• function spum_response_hdr_len
• function spum_hash_pad_len
• function spum_gcm_ccm_pad_len
• function spum_assoc_resp_len
• function spum_aead_ivlen
• function spum_hash_type
• function spum_digest_size
• function spum_create_request
• function RFC4543
• function spum_cipher_req_init
• function spum_cipher_req_finish
• function spum_request_pad
• function spum_xts_tweak_in_payload
• function spum_tx_status_len
• function spum_rx_status_len
• function spum_status_process
• function spum_ccm_update_iv
• function spum_wordalign_padlen

Annotated Snippet

if (hash_alg && hash_mode) {
			char *name = "NONE";

			switch (hash_alg) {
			case HASH_ALG_MD5:
				hash_key_len = 16;
				name = "MD5";
				break;
			case HASH_ALG_SHA1:
				hash_key_len = 20;
				name = "SHA1";
				break;
			case HASH_ALG_SHA224:
				hash_key_len = 28;
				name = "SHA224";
				break;
			case HASH_ALG_SHA256:
				hash_key_len = 32;
				name = "SHA256";
				break;
			case HASH_ALG_SHA384:
				hash_key_len = 48;
				name = "SHA384";
				break;
			case HASH_ALG_SHA512:
				hash_key_len = 64;
				name = "SHA512";
				break;
			case HASH_ALG_AES:
				hash_key_len = 0;
				name = "AES";
				break;
			case HASH_ALG_NONE:
				break;
			}

			packet_log("    Auth Key Type:%s Length:%u Bytes\n",
				   name, hash_key_len);
			packet_dump("    KEY: ", ptr, hash_key_len);
			ptr += hash_key_len;
		} else if ((hash_alg == HASH_ALG_AES) &&
			   (hash_mode == HASH_MODE_XCBC)) {
			char *name = "NONE";

			switch (cipher_type) {
			case CIPHER_TYPE_AES128:
				hash_key_len = 16;
				name = "AES128-XCBC";
				break;
			case CIPHER_TYPE_AES192:
				hash_key_len = 24;
				name = "AES192-XCBC";
				break;
			case CIPHER_TYPE_AES256:
				hash_key_len = 32;
				name = "AES256-XCBC";
				break;
			}
			packet_log("    Auth Key Type:%s Length:%u Bytes\n",
				   name, hash_key_len);
			packet_dump("    KEY: ", ptr, hash_key_len);
			ptr += hash_key_len;
		}

		if (hash_alg && (hash_mode == HASH_MODE_NONE) &&
		    (hash_type == HASH_TYPE_UPDT)) {
			char *name = "NONE";

			switch (hash_alg) {
			case HASH_ALG_MD5:
				hash_state_len = 16;
				name = "MD5";
				break;
			case HASH_ALG_SHA1:
				hash_state_len = 20;
				name = "SHA1";
				break;
			case HASH_ALG_SHA224:
				hash_state_len = 32;
				name = "SHA224";
				break;
			case HASH_ALG_SHA256:
				hash_state_len = 32;
				name = "SHA256";
				break;
			case HASH_ALG_SHA384:
				hash_state_len = 48;
				name = "SHA384";
				break;
			case HASH_ALG_SHA512:

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/string.h`, `util.h`, `spu.h`, `spum.h`, `cipher.h`.
• Detected declarations: `function spum_dump_msg_hdr`, `function spum_ns2_ctx_max_payload`, `function spum_nsp_ctx_max_payload`, `function spum_payload_length`, `function spum_response_hdr_len`, `function spum_hash_pad_len`, `function spum_gcm_ccm_pad_len`, `function spum_assoc_resp_len`, `function spum_aead_ivlen`, `function spum_hash_type`.
• Atlas domain: Driver Families / drivers/crypto.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.