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ccr: Disable requests on port 1 when needed to workaround a firmware bug.

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Completions for crypto requests on port 1 can sometimes return a stale
cookie value due to a firmware bug.  Disable requests on port 1 by
default on affected firmware.

Reviewed by:	np
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D26581
This commit is contained in:
John Baldwin 2021-03-12 10:35:56 -08:00
parent 9c5137beb5
commit 5fe0cd6503
1 changed files with 9 additions and 1 deletions
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10
sys/dev/cxgbe/crypto/t4_crypto.c
View file

@ -2153,7 +2153,15 @@ ccr_init_port(struct ccr_softc *sc, int port)
sc->ports[port].stats_completed = counter_u64_alloc(M_WAITOK);
_Static_assert(sizeof(sc->port_mask) * NBBY >= MAX_NPORTS - 1,
"Too many ports to fit in port_mask");
sc->port_mask |= 1u << port;
/*
* Completions for crypto requests on port 1 can sometimes
* return a stale cookie value due to a firmware bug. Disable
* requests on port 1 by default on affected firmware.
*/
if (sc->adapter->params.fw_vers >= FW_VERSION32(1, 25, 4, 0) ||
port == 0)
sc->port_mask |= 1u << port;
}
static int