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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel…
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…/git/s390/linux

Pull s390 updates from Martin Schwidefsky:
 "The s390 patches for the 4.7 merge window have the usual bug fixes and
  cleanups, and the following new features:

   - An interface for dasd driver to query if a volume is online to
     another operating system

   - A new ioctl for the dasd driver to verify the format for a range of
     tracks

   - Following the example of x86 the struct fpu is now allocated with
     the task_struct

   - The 'report_error' interface for the PCI bus to send an
     adapter-error notification from user space to the service element
     of the machine"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (29 commits)
  s390/vmem: remove unused function parameter
  s390/vmem: fix identity mapping
  s390: add missing include statements
  s390: add missing declarations
  s390: make couple of variables and functions static
  s390/cache: remove superfluous locking
  s390/cpuinfo: simplify locking and skip offline cpus early
  s390/3270: hangup the 3270 tty after a disconnect
  s390/3270: handle reconnect of a tty with a different size
  s390/3270: avoid endless I/O loop with disconnected 3270 terminals
  s390/3270: fix garbled output on 3270 tty view
  s390/3270: fix view reference counting
  s390/3270: add missing tty_kref_put
  s390/dumpstack: implement and use return_address()
  s390/cpum_sf: Remove superfluous SMP function call
  s390/cpum_cf: Remove superfluous SMP function call
  s390/Kconfig: make z196 the default processor type
  s390/sclp: avoid compile warning in sclp_pci_report
  s390/fpu: allocate 'struct fpu' with the task_struct
  s390/crypto: cleanup and move the header with the cpacf definitions
  ...
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Linus Torvalds committed May 18, 2016
2 parents 0e034f5 + c53db52 commit f61a657
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Showing 52 changed files with 2,104 additions and 951 deletions.
10 changes: 10 additions & 0 deletions Documentation/kernel-parameters.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -2558,6 +2558,9 @@ bytes respectively. Such letter suffixes can also be entirely omitted.

nohugeiomap [KNL,x86] Disable kernel huge I/O mappings.

nosmt [KNL,S390] Disable symmetric multithreading (SMT).
Equivalent to smt=1.

noxsave [BUGS=X86] Disables x86 extended register state save
and restore using xsave. The kernel will fallback to
enabling legacy floating-point and sse state.
Expand Down Expand Up @@ -3753,6 +3756,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
1: Fast pin select (default)
2: ATC IRMode

smt [KNL,S390] Set the maximum number of threads (logical
CPUs) to use per physical CPU on systems capable of
symmetric multithreading (SMT). Will be capped to the
actual hardware limit.
Format: <integer>
Default: -1 (no limit)

softlockup_panic=
[KNL] Should the soft-lockup detector generate panics.
Format: <integer>
Expand Down
3 changes: 2 additions & 1 deletion arch/s390/Kconfig
View file
Original file line number Diff line number Diff line change
Expand Up @@ -107,6 +107,7 @@ config S390
select ARCH_SUPPORTS_NUMA_BALANCING
select ARCH_USE_BUILTIN_BSWAP
select ARCH_USE_CMPXCHG_LOCKREF
select ARCH_WANTS_DYNAMIC_TASK_STRUCT
select ARCH_WANTS_PROT_NUMA_PROT_NONE
select ARCH_WANT_IPC_PARSE_VERSION
select BUILDTIME_EXTABLE_SORT
Expand Down Expand Up @@ -210,7 +211,7 @@ config HAVE_MARCH_Z13_FEATURES

choice
prompt "Processor type"
default MARCH_Z900
default MARCH_Z196

config MARCH_Z900
bool "IBM zSeries model z800 and z900"
Expand Down
117 changes: 56 additions & 61 deletions arch/s390/crypto/aes_s390.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,7 @@
#include <linux/init.h>
#include <linux/spinlock.h>
#include <crypto/xts.h>
#include "crypt_s390.h"
#include <asm/cpacf.h>

#define AES_KEYLEN_128 1
#define AES_KEYLEN_192 2
Expand Down Expand Up @@ -145,16 +145,16 @@ static void aes_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)

switch (sctx->key_len) {
case 16:
crypt_s390_km(KM_AES_128_ENCRYPT, &sctx->key, out, in,
AES_BLOCK_SIZE);
cpacf_km(CPACF_KM_AES_128_ENC, &sctx->key, out, in,
AES_BLOCK_SIZE);
break;
case 24:
crypt_s390_km(KM_AES_192_ENCRYPT, &sctx->key, out, in,
AES_BLOCK_SIZE);
cpacf_km(CPACF_KM_AES_192_ENC, &sctx->key, out, in,
AES_BLOCK_SIZE);
break;
case 32:
crypt_s390_km(KM_AES_256_ENCRYPT, &sctx->key, out, in,
AES_BLOCK_SIZE);
cpacf_km(CPACF_KM_AES_256_ENC, &sctx->key, out, in,
AES_BLOCK_SIZE);
break;
}
}
Expand All @@ -170,16 +170,16 @@ static void aes_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)

switch (sctx->key_len) {
case 16:
crypt_s390_km(KM_AES_128_DECRYPT, &sctx->key, out, in,
AES_BLOCK_SIZE);
cpacf_km(CPACF_KM_AES_128_DEC, &sctx->key, out, in,
AES_BLOCK_SIZE);
break;
case 24:
crypt_s390_km(KM_AES_192_DECRYPT, &sctx->key, out, in,
AES_BLOCK_SIZE);
cpacf_km(CPACF_KM_AES_192_DEC, &sctx->key, out, in,
AES_BLOCK_SIZE);
break;
case 32:
crypt_s390_km(KM_AES_256_DECRYPT, &sctx->key, out, in,
AES_BLOCK_SIZE);
cpacf_km(CPACF_KM_AES_256_DEC, &sctx->key, out, in,
AES_BLOCK_SIZE);
break;
}
}
Expand Down Expand Up @@ -212,7 +212,7 @@ static void fallback_exit_cip(struct crypto_tfm *tfm)
static struct crypto_alg aes_alg = {
.cra_name = "aes",
.cra_driver_name = "aes-s390",
.cra_priority = CRYPT_S390_PRIORITY,
.cra_priority = 300,
.cra_flags = CRYPTO_ALG_TYPE_CIPHER |
CRYPTO_ALG_NEED_FALLBACK,
.cra_blocksize = AES_BLOCK_SIZE,
Expand Down Expand Up @@ -298,16 +298,16 @@ static int ecb_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,

switch (key_len) {
case 16:
sctx->enc = KM_AES_128_ENCRYPT;
sctx->dec = KM_AES_128_DECRYPT;
sctx->enc = CPACF_KM_AES_128_ENC;
sctx->dec = CPACF_KM_AES_128_DEC;
break;
case 24:
sctx->enc = KM_AES_192_ENCRYPT;
sctx->dec = KM_AES_192_DECRYPT;
sctx->enc = CPACF_KM_AES_192_ENC;
sctx->dec = CPACF_KM_AES_192_DEC;
break;
case 32:
sctx->enc = KM_AES_256_ENCRYPT;
sctx->dec = KM_AES_256_DECRYPT;
sctx->enc = CPACF_KM_AES_256_ENC;
sctx->dec = CPACF_KM_AES_256_DEC;
break;
}

Expand All @@ -326,7 +326,7 @@ static int ecb_aes_crypt(struct blkcipher_desc *desc, long func, void *param,
u8 *out = walk->dst.virt.addr;
u8 *in = walk->src.virt.addr;

ret = crypt_s390_km(func, param, out, in, n);
ret = cpacf_km(func, param, out, in, n);
if (ret < 0 || ret != n)
return -EIO;

Expand Down Expand Up @@ -393,7 +393,7 @@ static void fallback_exit_blk(struct crypto_tfm *tfm)
static struct crypto_alg ecb_aes_alg = {
.cra_name = "ecb(aes)",
.cra_driver_name = "ecb-aes-s390",
.cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
.cra_priority = 400, /* combo: aes + ecb */
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
CRYPTO_ALG_NEED_FALLBACK,
.cra_blocksize = AES_BLOCK_SIZE,
Expand Down Expand Up @@ -427,16 +427,16 @@ static int cbc_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,

switch (key_len) {
case 16:
sctx->enc = KMC_AES_128_ENCRYPT;
sctx->dec = KMC_AES_128_DECRYPT;
sctx->enc = CPACF_KMC_AES_128_ENC;
sctx->dec = CPACF_KMC_AES_128_DEC;
break;
case 24:
sctx->enc = KMC_AES_192_ENCRYPT;
sctx->dec = KMC_AES_192_DECRYPT;
sctx->enc = CPACF_KMC_AES_192_ENC;
sctx->dec = CPACF_KMC_AES_192_DEC;
break;
case 32:
sctx->enc = KMC_AES_256_ENCRYPT;
sctx->dec = KMC_AES_256_DECRYPT;
sctx->enc = CPACF_KMC_AES_256_ENC;
sctx->dec = CPACF_KMC_AES_256_DEC;
break;
}

Expand Down Expand Up @@ -465,7 +465,7 @@ static int cbc_aes_crypt(struct blkcipher_desc *desc, long func,
u8 *out = walk->dst.virt.addr;
u8 *in = walk->src.virt.addr;

ret = crypt_s390_kmc(func, &param, out, in, n);
ret = cpacf_kmc(func, &param, out, in, n);
if (ret < 0 || ret != n)
return -EIO;

Expand Down Expand Up @@ -509,7 +509,7 @@ static int cbc_aes_decrypt(struct blkcipher_desc *desc,
static struct crypto_alg cbc_aes_alg = {
.cra_name = "cbc(aes)",
.cra_driver_name = "cbc-aes-s390",
.cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
.cra_priority = 400, /* combo: aes + cbc */
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
CRYPTO_ALG_NEED_FALLBACK,
.cra_blocksize = AES_BLOCK_SIZE,
Expand Down Expand Up @@ -596,8 +596,8 @@ static int xts_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,

switch (key_len) {
case 32:
xts_ctx->enc = KM_XTS_128_ENCRYPT;
xts_ctx->dec = KM_XTS_128_DECRYPT;
xts_ctx->enc = CPACF_KM_XTS_128_ENC;
xts_ctx->dec = CPACF_KM_XTS_128_DEC;
memcpy(xts_ctx->key + 16, in_key, 16);
memcpy(xts_ctx->pcc_key + 16, in_key + 16, 16);
break;
Expand All @@ -607,8 +607,8 @@ static int xts_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
xts_fallback_setkey(tfm, in_key, key_len);
break;
case 64:
xts_ctx->enc = KM_XTS_256_ENCRYPT;
xts_ctx->dec = KM_XTS_256_DECRYPT;
xts_ctx->enc = CPACF_KM_XTS_256_ENC;
xts_ctx->dec = CPACF_KM_XTS_256_DEC;
memcpy(xts_ctx->key, in_key, 32);
memcpy(xts_ctx->pcc_key, in_key + 32, 32);
break;
Expand Down Expand Up @@ -643,7 +643,8 @@ static int xts_aes_crypt(struct blkcipher_desc *desc, long func,
memset(pcc_param.xts, 0, sizeof(pcc_param.xts));
memcpy(pcc_param.tweak, walk->iv, sizeof(pcc_param.tweak));
memcpy(pcc_param.key, xts_ctx->pcc_key, 32);
ret = crypt_s390_pcc(func, &pcc_param.key[offset]);
/* remove decipher modifier bit from 'func' and call PCC */
ret = cpacf_pcc(func & 0x7f, &pcc_param.key[offset]);
if (ret < 0)
return -EIO;

Expand All @@ -655,7 +656,7 @@ static int xts_aes_crypt(struct blkcipher_desc *desc, long func,
out = walk->dst.virt.addr;
in = walk->src.virt.addr;

ret = crypt_s390_km(func, &xts_param.key[offset], out, in, n);
ret = cpacf_km(func, &xts_param.key[offset], out, in, n);
if (ret < 0 || ret != n)
return -EIO;

Expand Down Expand Up @@ -721,7 +722,7 @@ static void xts_fallback_exit(struct crypto_tfm *tfm)
static struct crypto_alg xts_aes_alg = {
.cra_name = "xts(aes)",
.cra_driver_name = "xts-aes-s390",
.cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
.cra_priority = 400, /* combo: aes + xts */
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
CRYPTO_ALG_NEED_FALLBACK,
.cra_blocksize = AES_BLOCK_SIZE,
Expand Down Expand Up @@ -751,16 +752,16 @@ static int ctr_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,

switch (key_len) {
case 16:
sctx->enc = KMCTR_AES_128_ENCRYPT;
sctx->dec = KMCTR_AES_128_DECRYPT;
sctx->enc = CPACF_KMCTR_AES_128_ENC;
sctx->dec = CPACF_KMCTR_AES_128_DEC;
break;
case 24:
sctx->enc = KMCTR_AES_192_ENCRYPT;
sctx->dec = KMCTR_AES_192_DECRYPT;
sctx->enc = CPACF_KMCTR_AES_192_ENC;
sctx->dec = CPACF_KMCTR_AES_192_DEC;
break;
case 32:
sctx->enc = KMCTR_AES_256_ENCRYPT;
sctx->dec = KMCTR_AES_256_DECRYPT;
sctx->enc = CPACF_KMCTR_AES_256_ENC;
sctx->dec = CPACF_KMCTR_AES_256_DEC;
break;
}

Expand Down Expand Up @@ -804,8 +805,7 @@ static int ctr_aes_crypt(struct blkcipher_desc *desc, long func,
n = __ctrblk_init(ctrptr, nbytes);
else
n = AES_BLOCK_SIZE;
ret = crypt_s390_kmctr(func, sctx->key, out, in,
n, ctrptr);
ret = cpacf_kmctr(func, sctx->key, out, in, n, ctrptr);
if (ret < 0 || ret != n) {
if (ctrptr == ctrblk)
spin_unlock(&ctrblk_lock);
Expand Down Expand Up @@ -837,8 +837,8 @@ static int ctr_aes_crypt(struct blkcipher_desc *desc, long func,
if (nbytes) {
out = walk->dst.virt.addr;
in = walk->src.virt.addr;
ret = crypt_s390_kmctr(func, sctx->key, buf, in,
AES_BLOCK_SIZE, ctrbuf);
ret = cpacf_kmctr(func, sctx->key, buf, in,
AES_BLOCK_SIZE, ctrbuf);
if (ret < 0 || ret != AES_BLOCK_SIZE)
return -EIO;
memcpy(out, buf, nbytes);
Expand Down Expand Up @@ -875,7 +875,7 @@ static int ctr_aes_decrypt(struct blkcipher_desc *desc,
static struct crypto_alg ctr_aes_alg = {
.cra_name = "ctr(aes)",
.cra_driver_name = "ctr-aes-s390",
.cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
.cra_priority = 400, /* combo: aes + ctr */
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
.cra_blocksize = 1,
.cra_ctxsize = sizeof(struct s390_aes_ctx),
Expand All @@ -899,11 +899,11 @@ static int __init aes_s390_init(void)
{
int ret;

if (crypt_s390_func_available(KM_AES_128_ENCRYPT, CRYPT_S390_MSA))
if (cpacf_query(CPACF_KM, CPACF_KM_AES_128_ENC))
keylen_flag |= AES_KEYLEN_128;
if (crypt_s390_func_available(KM_AES_192_ENCRYPT, CRYPT_S390_MSA))
if (cpacf_query(CPACF_KM, CPACF_KM_AES_192_ENC))
keylen_flag |= AES_KEYLEN_192;
if (crypt_s390_func_available(KM_AES_256_ENCRYPT, CRYPT_S390_MSA))
if (cpacf_query(CPACF_KM, CPACF_KM_AES_256_ENC))
keylen_flag |= AES_KEYLEN_256;

if (!keylen_flag)
Expand All @@ -926,22 +926,17 @@ static int __init aes_s390_init(void)
if (ret)
goto cbc_aes_err;

if (crypt_s390_func_available(KM_XTS_128_ENCRYPT,
CRYPT_S390_MSA | CRYPT_S390_MSA4) &&
crypt_s390_func_available(KM_XTS_256_ENCRYPT,
CRYPT_S390_MSA | CRYPT_S390_MSA4)) {
if (cpacf_query(CPACF_KM, CPACF_KM_XTS_128_ENC) &&
cpacf_query(CPACF_KM, CPACF_KM_XTS_256_ENC)) {
ret = crypto_register_alg(&xts_aes_alg);
if (ret)
goto xts_aes_err;
xts_aes_alg_reg = 1;
}

if (crypt_s390_func_available(KMCTR_AES_128_ENCRYPT,
CRYPT_S390_MSA | CRYPT_S390_MSA4) &&
crypt_s390_func_available(KMCTR_AES_192_ENCRYPT,
CRYPT_S390_MSA | CRYPT_S390_MSA4) &&
crypt_s390_func_available(KMCTR_AES_256_ENCRYPT,
CRYPT_S390_MSA | CRYPT_S390_MSA4)) {
if (cpacf_query(CPACF_KMCTR, CPACF_KMCTR_AES_128_ENC) &&
cpacf_query(CPACF_KMCTR, CPACF_KMCTR_AES_192_ENC) &&
cpacf_query(CPACF_KMCTR, CPACF_KMCTR_AES_256_ENC)) {
ctrblk = (u8 *) __get_free_page(GFP_KERNEL);
if (!ctrblk) {
ret = -ENOMEM;
Expand Down
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