Author: jhb Date: Tue Jun 9 22:26:07 2020 New Revision: 361991 URL: https://svnweb.freebsd.org/changeset/base/361991
Log: Add a crypto capability flag for accelerated software drivers. Use this in GELI to print out a different message when accelerated software such as AESNI is used vs plain software crypto. While here, simplify the logic in GELI a bit for determing which type of crypto driver was chosen the first time by examining the capabilities of the matched driver after a single call to crypto_newsession rather than making separate calls with different flags. Reviewed by: delphij Sponsored by: Chelsio Communications Differential Revision: https://reviews.freebsd.org/D25126 Modified: head/share/man/man9/crypto_driver.9 head/sys/crypto/aesni/aesni.c head/sys/crypto/armv8/armv8_crypto.c head/sys/crypto/blake2/blake2_cryptodev.c head/sys/crypto/via/padlock.c head/sys/geom/eli/g_eli.c head/sys/geom/eli/g_eli.h head/sys/mips/cavium/cryptocteon/cryptocteon.c head/sys/opencrypto/cryptodev.h Modified: head/share/man/man9/crypto_driver.9 ============================================================================== --- head/share/man/man9/crypto_driver.9 Tue Jun 9 22:19:36 2020 (r361990) +++ head/share/man/man9/crypto_driver.9 Tue Jun 9 22:26:07 2020 (r361991) @@ -30,7 +30,7 @@ .\" .\" $FreeBSD$ .\" -.Dd May 25, 2020 +.Dd June 9, 2020 .Dt CRYPTO_DRIVER 9 .Os .Sh NAME @@ -113,6 +113,8 @@ should be used for drivers which process requests on s .Dv CRYPTOCAP_F_SYNC should be set for drivers which process requests synchronously in .Fn CRYPTODEV_PROCESS . +.Dv CRYPTOCAP_F_ACCEL_SOFTWARE +should be set for software drivers which use accelerated CPU instructions. .Fn crypto_get_driverid returns an opaque driver id. .Pp Modified: head/sys/crypto/aesni/aesni.c ============================================================================== --- head/sys/crypto/aesni/aesni.c Tue Jun 9 22:19:36 2020 (r361990) +++ head/sys/crypto/aesni/aesni.c Tue Jun 9 22:26:07 2020 (r361991) @@ -167,7 +167,8 @@ aesni_attach(device_t dev) sc = device_get_softc(dev); sc->cid = crypto_get_driverid(dev, sizeof(struct aesni_session), - CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_SYNC); + CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_SYNC | + CRYPTOCAP_F_ACCEL_SOFTWARE); if (sc->cid < 0) { device_printf(dev, "Could not get crypto driver id.\n"); return (ENOMEM); Modified: head/sys/crypto/armv8/armv8_crypto.c ============================================================================== --- head/sys/crypto/armv8/armv8_crypto.c Tue Jun 9 22:19:36 2020 (r361990) +++ head/sys/crypto/armv8/armv8_crypto.c Tue Jun 9 22:26:07 2020 (r361991) @@ -131,7 +131,7 @@ armv8_crypto_attach(device_t dev) sc->dieing = 0; sc->cid = crypto_get_driverid(dev, sizeof(struct armv8_crypto_session), - CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_SYNC); + CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_SYNC | CRYPTOCAP_F_ACCEL_SOFTWARE); if (sc->cid < 0) { device_printf(dev, "Could not get crypto driver id.\n"); return (ENOMEM); Modified: head/sys/crypto/blake2/blake2_cryptodev.c ============================================================================== --- head/sys/crypto/blake2/blake2_cryptodev.c Tue Jun 9 22:19:36 2020 (r361990) +++ head/sys/crypto/blake2/blake2_cryptodev.c Tue Jun 9 22:26:07 2020 (r361991) @@ -129,7 +129,8 @@ blake2_attach(device_t dev) sc->dying = false; sc->cid = crypto_get_driverid(dev, sizeof(struct blake2_session), - CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_SYNC); + CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_SYNC | + CRYPTOCAP_F_ACCEL_SOFTWARE); if (sc->cid < 0) { device_printf(dev, "Could not get crypto driver id.\n"); return (ENOMEM); Modified: head/sys/crypto/via/padlock.c ============================================================================== --- head/sys/crypto/via/padlock.c Tue Jun 9 22:19:36 2020 (r361990) +++ head/sys/crypto/via/padlock.c Tue Jun 9 22:26:07 2020 (r361991) @@ -119,7 +119,8 @@ padlock_attach(device_t dev) struct padlock_softc *sc = device_get_softc(dev); sc->sc_cid = crypto_get_driverid(dev, sizeof(struct padlock_session), - CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_SYNC); + CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_SYNC | + CRYPTOCAP_F_ACCEL_SOFTWARE); if (sc->sc_cid < 0) { device_printf(dev, "Could not get crypto driver id.\n"); return (ENOMEM); Modified: head/sys/geom/eli/g_eli.c ============================================================================== --- head/sys/geom/eli/g_eli.c Tue Jun 9 22:19:36 2020 (r361990) +++ head/sys/geom/eli/g_eli.c Tue Jun 9 22:26:07 2020 (r361991) @@ -489,7 +489,8 @@ g_eli_newsession(struct g_eli_worker *wr) { struct g_eli_softc *sc; struct crypto_session_params csp; - int error; + uint32_t caps; + int error, new_crypto; void *key; sc = wr->w_softc; @@ -516,6 +517,7 @@ g_eli_newsession(struct g_eli_worker *wr) } switch (sc->sc_crypto) { + case G_ELI_CRYPTO_SW_ACCEL: case G_ELI_CRYPTO_SW: error = crypto_newsession(&wr->w_sid, &csp, CRYPTOCAP_F_SOFTWARE); @@ -526,19 +528,19 @@ g_eli_newsession(struct g_eli_worker *wr) break; case G_ELI_CRYPTO_UNKNOWN: error = crypto_newsession(&wr->w_sid, &csp, - CRYPTOCAP_F_HARDWARE); + CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE); if (error == 0) { + caps = crypto_ses2caps(wr->w_sid); + if (caps & CRYPTOCAP_F_HARDWARE) + new_crypto = G_ELI_CRYPTO_HW; + else if (caps & CRYPTOCAP_F_ACCEL_SOFTWARE) + new_crypto = G_ELI_CRYPTO_SW_ACCEL; + else + new_crypto = G_ELI_CRYPTO_SW; mtx_lock(&sc->sc_queue_mtx); if (sc->sc_crypto == G_ELI_CRYPTO_UNKNOWN) - sc->sc_crypto = G_ELI_CRYPTO_HW; + sc->sc_crypto = new_crypto; mtx_unlock(&sc->sc_queue_mtx); - } else { - error = crypto_newsession(&wr->w_sid, &csp, - CRYPTOCAP_F_SOFTWARE); - mtx_lock(&sc->sc_queue_mtx); - if (sc->sc_crypto == G_ELI_CRYPTO_UNKNOWN) - sc->sc_crypto = G_ELI_CRYPTO_SW; - mtx_unlock(&sc->sc_queue_mtx); } break; default: @@ -983,6 +985,7 @@ g_eli_create(struct gctl_req *req, struct g_class *mp, if (sc->sc_flags & G_ELI_FLAG_AUTH) G_ELI_DEBUG(0, " Integrity: %s", g_eli_algo2str(sc->sc_aalgo)); G_ELI_DEBUG(0, " Crypto: %s", + sc->sc_crypto == G_ELI_CRYPTO_SW_ACCEL ? "accelerated software" : sc->sc_crypto == G_ELI_CRYPTO_SW ? "software" : "hardware"); return (gp); failed: @@ -1380,6 +1383,9 @@ g_eli_dumpconf(struct sbuf *sb, const char *indent, st break; case G_ELI_CRYPTO_SW: sbuf_cat(sb, "software"); + break; + case G_ELI_CRYPTO_SW_ACCEL: + sbuf_cat(sb, "accelerated software"); break; default: sbuf_cat(sb, "UNKNOWN"); Modified: head/sys/geom/eli/g_eli.h ============================================================================== --- head/sys/geom/eli/g_eli.h Tue Jun 9 22:19:36 2020 (r361990) +++ head/sys/geom/eli/g_eli.h Tue Jun 9 22:26:07 2020 (r361991) @@ -145,6 +145,7 @@ #define G_ELI_CRYPTO_UNKNOWN 0 #define G_ELI_CRYPTO_HW 1 #define G_ELI_CRYPTO_SW 2 +#define G_ELI_CRYPTO_SW_ACCEL 3 #ifdef _KERNEL #if (MAX_KEY_BYTES < G_ELI_DATAIVKEYLEN) Modified: head/sys/mips/cavium/cryptocteon/cryptocteon.c ============================================================================== --- head/sys/mips/cavium/cryptocteon/cryptocteon.c Tue Jun 9 22:19:36 2020 (r361990) +++ head/sys/mips/cavium/cryptocteon/cryptocteon.c Tue Jun 9 22:26:07 2020 (r361991) @@ -86,7 +86,8 @@ cryptocteon_attach(device_t dev) sc = device_get_softc(dev); sc->sc_cid = crypto_get_driverid(dev, sizeof(struct octo_sess), - CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_SYNC); + CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_SYNC | + CRYPTOCAP_F_ACCEL_SOFTWARE); if (sc->sc_cid < 0) { device_printf(dev, "crypto_get_driverid ret %d\n", sc->sc_cid); return (ENXIO); Modified: head/sys/opencrypto/cryptodev.h ============================================================================== --- head/sys/opencrypto/cryptodev.h Tue Jun 9 22:19:36 2020 (r361990) +++ head/sys/opencrypto/cryptodev.h Tue Jun 9 22:26:07 2020 (r361991) @@ -620,6 +620,7 @@ extern void crypto_freesession(crypto_session_t cses); #define CRYPTOCAP_F_HARDWARE CRYPTO_FLAG_HARDWARE #define CRYPTOCAP_F_SOFTWARE CRYPTO_FLAG_SOFTWARE #define CRYPTOCAP_F_SYNC 0x04000000 /* operates synchronously */ +#define CRYPTOCAP_F_ACCEL_SOFTWARE 0x08000000 extern int32_t crypto_get_driverid(device_t dev, size_t session_size, int flags); extern int crypto_find_driver(const char *); _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
