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crypto: qat - allow for instances in different banks 

Allow for crypto instances to be configured with symmetric crypto rings
that belong to a bank that is different from the one where asymmetric
crypto rings are located.

This is to allow for devices with banks made of a single ring pair.
In these, crypto instances will be composed of two separate banks.

Changed string literals are not exposed to the user space.

Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Wojciech Ziemba <wojciech.ziemba@intel.com>
Reviewed-by: Fiona Trahe <fiona.trahe@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Giovanni Cabiddu 2020-10-12 21:38:46 +01:00 committed by Herbert Xu
parent 54e3d7538f
commit 657ad678e0
2 changed files with 28 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/crypto/qat/qat_common/adf_cfg_strings.h
View File

@ -18,7 +18,8 @@
#define ADF_RING_DC_TX "RingTx"
#define ADF_RING_DC_RX "RingRx"
#define ADF_ETRMGR_BANK "Bank"
#define ADF_RING_BANK_NUM "BankNumber"
#define ADF_RING_SYM_BANK_NUM "BankSymNumber"
#define ADF_RING_ASYM_BANK_NUM "BankAsymNumber"
#define ADF_CY "Cy"
#define ADF_DC "Dc"
#define ADF_ETRMGR_COALESCING_ENABLED "InterruptCoalescingEnabled"

34
drivers/crypto/qat/qat_common/qat_crypto.c
View File

@ -138,7 +138,13 @@ int qat_crypto_dev_config(struct adf_accel_dev *accel_dev)
for (i = 0; i < instances; i++) {
val = i;
snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_BANK_NUM, i);
snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_BANK_NUM, i);
ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
key, &val, ADF_DEC);
if (ret)
goto err;
snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_BANK_NUM, i);
ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
key, &val, ADF_DEC);
if (ret)
@ -217,9 +223,10 @@ EXPORT_SYMBOL_GPL(qat_crypto_dev_config);
static int qat_crypto_create_instances(struct adf_accel_dev *accel_dev)
{
unsigned long bank, num_inst, num_msg_sym, num_msg_asym;
unsigned long num_inst, num_msg_sym, num_msg_asym;
char key[ADF_CFG_MAX_KEY_LEN_IN_BYTES];
char val[ADF_CFG_MAX_VAL_LEN_IN_BYTES];
unsigned long sym_bank, asym_bank;
struct qat_crypto_instance *inst;
int msg_size;
int ret;
@ -246,14 +253,25 @@ static int qat_crypto_create_instances(struct adf_accel_dev *accel_dev)
inst->id = i;
atomic_set(&inst->refctr, 0);
inst->accel_dev = accel_dev;
snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_BANK_NUM, i);
snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_BANK_NUM, i);
ret = adf_cfg_get_param_value(accel_dev, SEC, key, val);
if (ret)
goto err;
ret = kstrtoul(val, 10, &bank);
ret = kstrtoul(val, 10, &sym_bank);
if (ret)
goto err;
snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_BANK_NUM, i);
ret = adf_cfg_get_param_value(accel_dev, SEC, key, val);
if (ret)
goto err;
ret = kstrtoul(val, 10, &asym_bank);
if (ret)
goto err;
snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_SIZE, i);
ret = adf_cfg_get_param_value(accel_dev, SEC, key, val);
if (ret)
@ -277,28 +295,28 @@ static int qat_crypto_create_instances(struct adf_accel_dev *accel_dev)
msg_size = ICP_QAT_FW_REQ_DEFAULT_SZ;
snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_TX, i);
ret = adf_create_ring(accel_dev, SEC, bank, num_msg_sym,
ret = adf_create_ring(accel_dev, SEC, sym_bank, num_msg_sym,
msg_size, key, NULL, 0, &inst->sym_tx);
if (ret)
goto err;
msg_size = msg_size >> 1;
snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_TX, i);
ret = adf_create_ring(accel_dev, SEC, bank, num_msg_asym,
ret = adf_create_ring(accel_dev, SEC, asym_bank, num_msg_asym,
msg_size, key, NULL, 0, &inst->pke_tx);
if (ret)
goto err;
msg_size = ICP_QAT_FW_RESP_DEFAULT_SZ;
snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_RX, i);
ret = adf_create_ring(accel_dev, SEC, bank, num_msg_sym,
ret = adf_create_ring(accel_dev, SEC, sym_bank, num_msg_sym,
msg_size, key, qat_alg_callback, 0,
&inst->sym_rx);
if (ret)
goto err;
snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_RX, i);
ret = adf_create_ring(accel_dev, SEC, bank, num_msg_asym,
ret = adf_create_ring(accel_dev, SEC, asym_bank, num_msg_asym,
msg_size, key, qat_alg_asym_callback, 0,
&inst->pke_rx);
if (ret)