diff options
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/caam/caamalg.c | 79 |
1 files changed, 61 insertions, 18 deletions
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c index f1116e7f7cd5..eb97562414d2 100644 --- a/drivers/crypto/caam/caamalg.c +++ b/drivers/crypto/caam/caamalg.c @@ -111,6 +111,42 @@ #else #define debug(format, arg...) #endif + +#ifdef DEBUG +#include <linux/highmem.h> + +static void dbg_dump_sg(const char *level, const char *prefix_str, + int prefix_type, int rowsize, int groupsize, + struct scatterlist *sg, size_t tlen, bool ascii, + bool may_sleep) +{ + struct scatterlist *it; + void *it_page; + size_t len; + void *buf; + + for (it = sg; it != NULL && tlen > 0 ; it = sg_next(sg)) { + /* + * make sure the scatterlist's page + * has a valid virtual memory mapping + */ + it_page = kmap_atomic(sg_page(it)); + if (unlikely(!it_page)) { + printk(KERN_ERR "dbg_dump_sg: kmap failed\n"); + return; + } + + buf = it_page + it->offset; + len = min(tlen, it->length); + print_hex_dump(level, prefix_str, prefix_type, rowsize, + groupsize, buf, len, ascii); + tlen -= len; + + kunmap_atomic(it_page); + } +} +#endif + static struct list_head alg_list; struct caam_alg_entry { @@ -1982,9 +2018,9 @@ static void ablkcipher_encrypt_done(struct device *jrdev, u32 *desc, u32 err, print_hex_dump(KERN_ERR, "dstiv @"__stringify(__LINE__)": ", DUMP_PREFIX_ADDRESS, 16, 4, req->info, edesc->src_nents > 1 ? 100 : ivsize, 1); - print_hex_dump(KERN_ERR, "dst @"__stringify(__LINE__)": ", - DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src), - edesc->dst_nents > 1 ? 100 : req->nbytes, 1); + dbg_dump_sg(KERN_ERR, "dst @"__stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, req->dst, + edesc->dst_nents > 1 ? 100 : req->nbytes, 1, true); #endif ablkcipher_unmap(jrdev, edesc, req); @@ -2014,9 +2050,9 @@ static void ablkcipher_decrypt_done(struct device *jrdev, u32 *desc, u32 err, print_hex_dump(KERN_ERR, "dstiv @"__stringify(__LINE__)": ", DUMP_PREFIX_ADDRESS, 16, 4, req->info, ivsize, 1); - print_hex_dump(KERN_ERR, "dst @"__stringify(__LINE__)": ", - DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src), - edesc->dst_nents > 1 ? 100 : req->nbytes, 1); + dbg_dump_sg(KERN_ERR, "dst @"__stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, req->dst, + edesc->dst_nents > 1 ? 100 : req->nbytes, 1, true); #endif ablkcipher_unmap(jrdev, edesc, req); @@ -2171,12 +2207,15 @@ static void init_ablkcipher_job(u32 *sh_desc, dma_addr_t ptr, int len, sec4_sg_index = 0; #ifdef DEBUG + bool may_sleep = ((req->base.flags & (CRYPTO_TFM_REQ_MAY_BACKLOG | + CRYPTO_TFM_REQ_MAY_SLEEP)) != 0); print_hex_dump(KERN_ERR, "presciv@"__stringify(__LINE__)": ", DUMP_PREFIX_ADDRESS, 16, 4, req->info, ivsize, 1); - print_hex_dump(KERN_ERR, "src @"__stringify(__LINE__)": ", - DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src), - edesc->src_nents ? 100 : req->nbytes, 1); + printk(KERN_ERR "asked=%d, nbytes%d\n", (int)edesc->src_nents ? 100 : req->nbytes, req->nbytes); + dbg_dump_sg(KERN_ERR, "src @"__stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, req->src, + edesc->src_nents ? 100 : req->nbytes, 1, may_sleep); #endif len = desc_len(sh_desc); @@ -2228,12 +2267,14 @@ static void init_ablkcipher_giv_job(u32 *sh_desc, dma_addr_t ptr, int len, sec4_sg_index = 0; #ifdef DEBUG + bool may_sleep = ((req->base.flags & (CRYPTO_TFM_REQ_MAY_BACKLOG | + CRYPTO_TFM_REQ_MAY_SLEEP)) != 0); print_hex_dump(KERN_ERR, "presciv@" __stringify(__LINE__) ": ", DUMP_PREFIX_ADDRESS, 16, 4, req->info, ivsize, 1); - print_hex_dump(KERN_ERR, "src @" __stringify(__LINE__) ": ", - DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src), - edesc->src_nents ? 100 : req->nbytes, 1); + dbg_dump_sg(KERN_ERR, "src @" __stringify(__LINE__) ": ", + DUMP_PREFIX_ADDRESS, 16, 4, req->src, + edesc->src_nents ? 100 : req->nbytes, 1, may_sleep); #endif len = desc_len(sh_desc); @@ -2503,18 +2544,20 @@ static int aead_decrypt(struct aead_request *req) u32 *desc; int ret = 0; +#ifdef DEBUG + bool may_sleep = ((req->base.flags & (CRYPTO_TFM_REQ_MAY_BACKLOG | + CRYPTO_TFM_REQ_MAY_SLEEP)) != 0); + dbg_dump_sg(KERN_ERR, "dec src@"__stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, req->src, + req->assoclen + req->cryptlen, 1, may_sleep); +#endif + /* allocate extended descriptor */ edesc = aead_edesc_alloc(req, AUTHENC_DESC_JOB_IO_LEN, &all_contig, false); if (IS_ERR(edesc)) return PTR_ERR(edesc); -#ifdef DEBUG - print_hex_dump(KERN_ERR, "dec src@"__stringify(__LINE__)": ", - DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src), - req->assoclen + req->cryptlen, 1); -#endif - /* Create and submit job descriptor*/ init_authenc_job(req, edesc, all_contig, false); #ifdef DEBUG |