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enetc: Disable HW IP packet alignment

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The NIC can IP align received packets.
It was observed that it caused some rare stalls, that required full board reset.
Disable this feature for now. It doesn't provide any significant performance
improvement anyway.

Obtained from: Semihalf
Sponsored by: Alstom Group
This commit is contained in:
Kornel Duleba 2022-01-27 09:26:07 +01:00 committed by Wojciech Macek
parent 8d8589b385
commit f485d733e8
1 changed files with 2 additions and 3 deletions
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5
sys/dev/enetc/if_enetc.c
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@ -933,7 +933,7 @@ enetc_init(if_ctx_t ctx)
ENETC_PORT_WR4(sc, ENETC_PSIPVMR,
ENETC_PSIPVMR_SET_VUTA(1));
sc->rbmr = ENETC_RBMR_EN | ENETC_RBMR_AL;
sc->rbmr = ENETC_RBMR_EN;
if (if_getcapenable(ifp) & IFCAP_VLAN_HWTAGGING)
sc->rbmr |= ENETC_RBMR_VTE;
@ -1255,8 +1255,7 @@ enetc_isc_rxd_pkt_get(void *data, if_rxd_info_t ri)
desc = &queue->ring[cidx];
}
ri->iri_nfrags = i + 1;
ri->iri_len = pkt_size + ENETC_RX_IP_ALIGN;
ri->iri_pad = ENETC_RX_IP_ALIGN;
ri->iri_len = pkt_size;
MPASS(desc->r.lstatus & ENETC_RXBD_LSTATUS_F);
if (status & ENETC_RXBD_LSTATUS(ENETC_RXBD_ERR_MASK))