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| author | Barry Song <song.bao.hua@hisilicon.com> | 2020-07-05 21:18:58 +1200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-07-09 18:25:23 +1000 |
| commit | 7bc13b5b60e9412a7ddef300ce2c661eecd1fd5d (patch) | |
| tree | 52f93eba50304a85d9930529db9d219c1dbc398f /crypto/api.c | |
| parent | 3347c8a079d67af21760a78cc5f2abbcf06d9571 (diff) | |
| download | lwn-7bc13b5b60e9412a7ddef300ce2c661eecd1fd5d.tar.gz lwn-7bc13b5b60e9412a7ddef300ce2c661eecd1fd5d.zip | |
crypto: api - permit users to specify numa node of acomp hardware
For a Linux server with NUMA, there are possibly multiple (de)compressors
which are either local or remote to some NUMA node. Some drivers will
automatically use the (de)compressor near the CPU calling acomp_alloc().
However, it is not necessarily correct because users who send acomp_req
could be from different NUMA node with the CPU which allocates acomp.
Just like kernel has kmalloc() and kmalloc_node(), here crypto can have
same support.
Cc: Seth Jennings <sjenning@redhat.com>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Vitaly Wool <vitaly.wool@konsulko.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/api.c')
| -rw-r--r-- | crypto/api.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/crypto/api.c b/crypto/api.c index edcf690800d4..5d8fe60b36c1 100644 --- a/crypto/api.c +++ b/crypto/api.c @@ -433,8 +433,9 @@ err: } EXPORT_SYMBOL_GPL(crypto_alloc_base); -void *crypto_create_tfm(struct crypto_alg *alg, - const struct crypto_type *frontend) +void *crypto_create_tfm_node(struct crypto_alg *alg, + const struct crypto_type *frontend, + int node) { char *mem; struct crypto_tfm *tfm = NULL; @@ -445,12 +446,13 @@ void *crypto_create_tfm(struct crypto_alg *alg, tfmsize = frontend->tfmsize; total = tfmsize + sizeof(*tfm) + frontend->extsize(alg); - mem = kzalloc(total, GFP_KERNEL); + mem = kzalloc_node(total, GFP_KERNEL, node); if (mem == NULL) goto out_err; tfm = (struct crypto_tfm *)(mem + tfmsize); tfm->__crt_alg = alg; + tfm->node = node; err = frontend->init_tfm(tfm); if (err) @@ -472,7 +474,7 @@ out_err: out: return mem; } -EXPORT_SYMBOL_GPL(crypto_create_tfm); +EXPORT_SYMBOL_GPL(crypto_create_tfm_node); struct crypto_alg *crypto_find_alg(const char *alg_name, const struct crypto_type *frontend, @@ -490,11 +492,13 @@ struct crypto_alg *crypto_find_alg(const char *alg_name, EXPORT_SYMBOL_GPL(crypto_find_alg); /* - * crypto_alloc_tfm - Locate algorithm and allocate transform + * crypto_alloc_tfm_node - Locate algorithm and allocate transform * @alg_name: Name of algorithm * @frontend: Frontend algorithm type * @type: Type of algorithm * @mask: Mask for type comparison + * @node: NUMA node in which users desire to put requests, if node is + * NUMA_NO_NODE, it means users have no special requirement. * * crypto_alloc_tfm() will first attempt to locate an already loaded * algorithm. If that fails and the kernel supports dynamically loadable @@ -509,8 +513,10 @@ EXPORT_SYMBOL_GPL(crypto_find_alg); * * In case of error the return value is an error pointer. */ -void *crypto_alloc_tfm(const char *alg_name, - const struct crypto_type *frontend, u32 type, u32 mask) + +void *crypto_alloc_tfm_node(const char *alg_name, + const struct crypto_type *frontend, u32 type, u32 mask, + int node) { void *tfm; int err; @@ -524,7 +530,7 @@ void *crypto_alloc_tfm(const char *alg_name, goto err; } - tfm = crypto_create_tfm(alg, frontend); + tfm = crypto_create_tfm_node(alg, frontend, node); if (!IS_ERR(tfm)) return tfm; @@ -542,7 +548,7 @@ err: return ERR_PTR(err); } -EXPORT_SYMBOL_GPL(crypto_alloc_tfm); +EXPORT_SYMBOL_GPL(crypto_alloc_tfm_node); /* * crypto_destroy_tfm - Free crypto transform |