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| author | Ingo Tuchscherer <ingo.tuchscherer@linux.vnet.ibm.com> | 2016-08-25 11:14:15 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-12-14 16:33:38 +0100 |
| commit | 34a15167739412750846d4f1a5540d9e592fd815 (patch) | |
| tree | 6436d8097ae4f2e3d0d70e13c7983ea714167448 /drivers/s390/crypto/zcrypt_cex2a.c | |
| parent | s390/zcrypt: get rid of ap_poll_requests (diff) | |
| download | linux-34a15167739412750846d4f1a5540d9e592fd815.tar.xz linux-34a15167739412750846d4f1a5540d9e592fd815.zip | |
s390/zcrypt: Introduce workload balancing
Crypto requests are very different in complexity and thus runtime.
Also various crypto adapters are differ with regard to the execution
time. Crypto requests can be balanced much better when the request
type and eligible crypto adapters are rated in a more precise
granularity. Therefore, request weights and adapter speed rates for
dedicated requests will be introduced.
Signed-off-by: Ingo Tuchscherer <ingo.tuchscherer@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/crypto/zcrypt_cex2a.c')
| -rw-r--r-- | drivers/s390/crypto/zcrypt_cex2a.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/s390/crypto/zcrypt_cex2a.c b/drivers/s390/crypto/zcrypt_cex2a.c index d892cb539139..4bb13eadd0f1 100644 --- a/drivers/s390/crypto/zcrypt_cex2a.c +++ b/drivers/s390/crypto/zcrypt_cex2a.c @@ -43,9 +43,6 @@ #define CEX3A_MIN_MOD_SIZE CEX2A_MIN_MOD_SIZE #define CEX3A_MAX_MOD_SIZE 512 /* 4096 bits */ -#define CEX2A_SPEED_RATING 970 -#define CEX3A_SPEED_RATING 900 /* Fixme: Needs finetuning */ - #define CEX2A_MAX_MESSAGE_SIZE 0x390 /* sizeof(struct type50_crb2_msg) */ #define CEX2A_MAX_RESPONSE_SIZE 0x110 /* max outputdatalength + type80_hdr */ @@ -87,6 +84,8 @@ static struct ap_driver zcrypt_cex2a_driver = { static int zcrypt_cex2a_probe(struct ap_device *ap_dev) { struct zcrypt_device *zdev = NULL; + int CEX2A_SPEED_IDX[] = { 800, 1000, 2000, 900, 1200, 2400, 0}; + int CEX3A_SPEED_IDX[] = { 400, 500, 1000, 450, 550, 1200, 0}; int rc = 0; switch (ap_dev->device_type) { @@ -99,7 +98,8 @@ static int zcrypt_cex2a_probe(struct ap_device *ap_dev) zdev->min_mod_size = CEX2A_MIN_MOD_SIZE; zdev->max_mod_size = CEX2A_MAX_MOD_SIZE; zdev->short_crt = 1; - zdev->speed_rating = CEX2A_SPEED_RATING; + memcpy(zdev->speed_rating, CEX2A_SPEED_IDX, + sizeof(CEX2A_SPEED_IDX)); zdev->max_exp_bit_length = CEX2A_MAX_MOD_SIZE; break; case AP_DEVICE_TYPE_CEX3A: @@ -117,7 +117,8 @@ static int zcrypt_cex2a_probe(struct ap_device *ap_dev) zdev->max_exp_bit_length = CEX3A_MAX_MOD_SIZE; } zdev->short_crt = 1; - zdev->speed_rating = CEX3A_SPEED_RATING; + memcpy(zdev->speed_rating, CEX3A_SPEED_IDX, + sizeof(CEX3A_SPEED_IDX)); break; } if (!zdev) @@ -125,6 +126,7 @@ static int zcrypt_cex2a_probe(struct ap_device *ap_dev) zdev->ops = zcrypt_msgtype(MSGTYPE50_NAME, MSGTYPE50_VARIANT_DEFAULT); zdev->ap_dev = ap_dev; zdev->online = 1; + zdev->load = zdev->speed_rating[0]; ap_device_init_reply(ap_dev, &zdev->reply); ap_dev->private = zdev; rc = zcrypt_device_register(zdev); |