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cxgbe(4): create a separate helper routine to write the global RSS key.

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While here, make sure only the PF driver attempts to program the global
RSS key (with options RSS).  The VF driver doesn't have access to those
device registers.

MFC after:	1 week
Sponsored by:	Chelsio Communications
This commit is contained in:
Navdeep Parhar 2021-03-19 13:28:11 -07:00
parent c02c04f113
commit 3cc6f777be
1 changed files with 21 additions and 13 deletions
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34
sys/dev/cxgbe/t4_main.c
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@ -5810,14 +5810,28 @@ t4_setup_intr_handlers(struct adapter *sc)
return (0);
}
static void
write_global_rss_key(struct adapter *sc)
{
#ifdef RSS
int i;
uint32_t raw_rss_key[RSS_KEYSIZE / sizeof(uint32_t)];
uint32_t rss_key[RSS_KEYSIZE / sizeof(uint32_t)];
CTASSERT(RSS_KEYSIZE == 40);
rss_getkey((void *)&raw_rss_key[0]);
for (i = 0; i < nitems(rss_key); i++) {
rss_key[i] = htobe32(raw_rss_key[nitems(rss_key) - 1 - i]);
}
t4_write_rss_key(sc, &rss_key[0], -1, 1);
#endif
}
int
adapter_full_init(struct adapter *sc)
{
int rc, i;
#ifdef RSS
uint32_t raw_rss_key[RSS_KEYSIZE / sizeof(uint32_t)];
uint32_t rss_key[RSS_KEYSIZE / sizeof(uint32_t)];
#endif
ASSERT_SYNCHRONIZED_OP(sc);
ADAPTER_LOCK_ASSERT_NOTOWNED(sc);
@ -5843,17 +5857,11 @@ adapter_full_init(struct adapter *sc)
taskqueue_start_threads(&sc->tq[i], 1, PI_NET, "%s tq%d",
device_get_nameunit(sc->dev), i);
}
#ifdef RSS
MPASS(RSS_KEYSIZE == 40);
rss_getkey((void *)&raw_rss_key[0]);
for (i = 0; i < nitems(rss_key); i++) {
rss_key[i] = htobe32(raw_rss_key[nitems(rss_key) - 1 - i]);
}
t4_write_rss_key(sc, &rss_key[0], -1, 1);
#endif
if (!(sc->flags & IS_VF))
if (!(sc->flags & IS_VF)) {
write_global_rss_key(sc);
t4_intr_enable(sc);
}
#ifdef KERN_TLS
if (sc->flags & KERN_TLS_OK)
callout_reset_sbt(&sc->ktls_tick, SBT_1MS, 0, ktls_tick, sc,