From 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:44:59 +0000
Subject: [PATCH] gmac get mac form eeprom
---
kernel/drivers/crypto/caam/key_gen.c | 68 +++++++++++++--------------------
1 files changed, 27 insertions(+), 41 deletions(-)
diff --git a/kernel/drivers/crypto/caam/key_gen.c b/kernel/drivers/crypto/caam/key_gen.c
index 312b5f0..b0e8a49 100644
--- a/kernel/drivers/crypto/caam/key_gen.c
+++ b/kernel/drivers/crypto/caam/key_gen.c
@@ -15,15 +15,14 @@
void *context)
{
struct split_key_result *res = context;
+ int ecode = 0;
-#ifdef DEBUG
- dev_err(dev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
-#endif
+ dev_dbg(dev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
if (err)
- caam_jr_strstatus(dev, err);
+ ecode = caam_jr_strstatus(dev, err);
- res->err = err;
+ res->err = ecode;
complete(&res->completion);
}
@@ -48,21 +47,21 @@
{
u32 *desc;
struct split_key_result result;
- dma_addr_t dma_addr_in, dma_addr_out;
+ dma_addr_t dma_addr;
+ unsigned int local_max;
int ret = -ENOMEM;
adata->keylen = split_key_len(adata->algtype & OP_ALG_ALGSEL_MASK);
adata->keylen_pad = split_key_pad_len(adata->algtype &
OP_ALG_ALGSEL_MASK);
+ local_max = max(keylen, adata->keylen_pad);
-#ifdef DEBUG
- dev_err(jrdev, "split keylen %d split keylen padded %d\n",
+ dev_dbg(jrdev, "split keylen %d split keylen padded %d\n",
adata->keylen, adata->keylen_pad);
- print_hex_dump(KERN_ERR, "ctx.key@" __stringify(__LINE__)": ",
- DUMP_PREFIX_ADDRESS, 16, 4, key_in, keylen, 1);
-#endif
+ print_hex_dump_debug("ctx.key@" __stringify(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, key_in, keylen, 1);
- if (adata->keylen_pad > max_keylen)
+ if (local_max > max_keylen)
return -EINVAL;
desc = kmalloc(CAAM_CMD_SZ * 6 + CAAM_PTR_SZ * 2, GFP_KERNEL | GFP_DMA);
@@ -71,22 +70,16 @@
return ret;
}
- dma_addr_in = dma_map_single(jrdev, (void *)key_in, keylen,
- DMA_TO_DEVICE);
- if (dma_mapping_error(jrdev, dma_addr_in)) {
- dev_err(jrdev, "unable to map key input memory\n");
+ memcpy(key_out, key_in, keylen);
+
+ dma_addr = dma_map_single(jrdev, key_out, local_max, DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(jrdev, dma_addr)) {
+ dev_err(jrdev, "unable to map key memory\n");
goto out_free;
}
- dma_addr_out = dma_map_single(jrdev, key_out, adata->keylen_pad,
- DMA_FROM_DEVICE);
- if (dma_mapping_error(jrdev, dma_addr_out)) {
- dev_err(jrdev, "unable to map key output memory\n");
- goto out_unmap_in;
- }
-
init_job_desc(desc, 0);
- append_key(desc, dma_addr_in, keylen, CLASS_2 | KEY_DEST_CLASS_REG);
+ append_key(desc, dma_addr, keylen, CLASS_2 | KEY_DEST_CLASS_REG);
/* Sets MDHA up into an HMAC-INIT */
append_operation(desc, (adata->algtype & OP_ALG_ALGSEL_MASK) |
@@ -104,35 +97,28 @@
* FIFO_STORE with the explicit split-key content store
* (0x26 output type)
*/
- append_fifo_store(desc, dma_addr_out, adata->keylen,
+ append_fifo_store(desc, dma_addr, adata->keylen,
LDST_CLASS_2_CCB | FIFOST_TYPE_SPLIT_KEK);
-#ifdef DEBUG
- print_hex_dump(KERN_ERR, "ctx.key@"__stringify(__LINE__)": ",
- DUMP_PREFIX_ADDRESS, 16, 4, key_in, keylen, 1);
- print_hex_dump(KERN_ERR, "jobdesc@"__stringify(__LINE__)": ",
- DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc), 1);
-#endif
+ print_hex_dump_debug("jobdesc@"__stringify(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
+ 1);
result.err = 0;
init_completion(&result.completion);
ret = caam_jr_enqueue(jrdev, desc, split_key_done, &result);
- if (!ret) {
+ if (ret == -EINPROGRESS) {
/* in progress */
wait_for_completion(&result.completion);
ret = result.err;
-#ifdef DEBUG
- print_hex_dump(KERN_ERR, "ctx.key@"__stringify(__LINE__)": ",
- DUMP_PREFIX_ADDRESS, 16, 4, key_out,
- adata->keylen_pad, 1);
-#endif
+
+ print_hex_dump_debug("ctx.key@"__stringify(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, key_out,
+ adata->keylen_pad, 1);
}
- dma_unmap_single(jrdev, dma_addr_out, adata->keylen_pad,
- DMA_FROM_DEVICE);
-out_unmap_in:
- dma_unmap_single(jrdev, dma_addr_in, keylen, DMA_TO_DEVICE);
+ dma_unmap_single(jrdev, dma_addr, local_max, DMA_BIDIRECTIONAL);
out_free:
kfree(desc);
return ret;
--
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