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net/sfc: do not panic if alarms are not supported

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Alarms are not supported on the FreeBSD.
Application must poll link status periodically itself using
rte_eth_link_get_nowait() to avoid management event queue overflow.

Fixes: 2de39f4e13 ("net/sfc: periodic management EVQ polling using alarm")

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andrew Lee <alee@solarflare.com>
Reviewed-by: Andy Moreton <amoreton@solarflare.com>
This commit is contained in:
Andrew Rybchenko 2017-01-19 11:12:20 +00:00 committed by Ferruh Yigit
parent 0603df73a0
commit 323706ab8b
1 changed files with 8 additions and 4 deletions
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12
drivers/net/sfc/sfc_ev.c
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@ -499,10 +499,14 @@ sfc_ev_mgmt_periodic_qpoll(void *arg)
rc = rte_eal_alarm_set(SFC_MGMT_EV_QPOLL_PERIOD_US,
sfc_ev_mgmt_periodic_qpoll, sa);
if (rc != 0)
sfc_panic(sa,
"cannot rearm management EVQ polling alarm (rc=%d)",
rc);
if (rc == -ENOTSUP) {
sfc_warn(sa, "alarms are not supported");
sfc_warn(sa, "management EVQ must be polled indirectly using no-wait link status update");
} else if (rc != 0) {
sfc_err(sa,
"cannot rearm management EVQ polling alarm (rc=%d)",
rc);
}
}
static void