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net: aquantia: check rx csum for all packets in LRO session

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Atlantic hardware does not aggregate nor breaks LRO sessions
with bad csum packets. This means driver should take care of that.

If in LRO session there is a non-first descriptor with invalid
checksum (L2/L3/L4), the driver must account this information
in csum application logic.

Fixes: 018423e90b ("net: ethernet: aquantia: Add ring support code")
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: Dmitry Bogdanov <dmitry.bogdanov@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dmitry Bogdanov 2019-05-25 09:58:01 +00:00 committed by David S. Miller
parent 31bafc49a7
commit f38f1ee8ae
1 changed files with 31 additions and 13 deletions
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42
drivers/net/ethernet/aquantia/atlantic/aq_ring.c
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@ -299,35 +299,47 @@ int aq_ring_rx_clean(struct aq_ring_s *self,
unsigned int i = 0U;
u16 hdr_len;
if (buff->is_error)
continue;
if (buff->is_cleaned)
continue;
if (!buff->is_eop) {
for (next_ = buff->next,
buff_ = &self->buff_ring[next_]; true;
buff_ = buff;
do {
next_ = buff_->next,
buff_ = &self->buff_ring[next_]) {
buff_ = &self->buff_ring[next_];
is_rsc_completed =
aq_ring_dx_in_range(self->sw_head,
next_,
self->hw_head);
if (unlikely(!is_rsc_completed)) {
is_rsc_completed = false;
if (unlikely(!is_rsc_completed))
break;
}
if (buff_->is_eop)
break;
}
buff->is_error |= buff_->is_error;
} while (!buff_->is_eop);
if (!is_rsc_completed) {
err = 0;
goto err_exit;
}
if (buff->is_error) {
buff_ = buff;
do {
next_ = buff_->next,
buff_ = &self->buff_ring[next_];
buff_->is_cleaned = true;
} while (!buff_->is_eop);
++self->stats.rx.errors;
continue;
}
}
if (buff->is_error) {
++self->stats.rx.errors;
continue;
}
dma_sync_single_range_for_cpu(aq_nic_get_dev(self->aq_nic),
@ -390,6 +402,12 @@ int aq_ring_rx_clean(struct aq_ring_s *self,
AQ_CFG_RX_FRAME_MAX);
page_ref_inc(buff_->rxdata.page);
buff_->is_cleaned = 1;
buff->is_ip_cso &= buff_->is_ip_cso;
buff->is_udp_cso &= buff_->is_udp_cso;
buff->is_tcp_cso &= buff_->is_tcp_cso;
buff->is_cso_err |= buff_->is_cso_err;
} while (!buff_->is_eop);
}
}