From 08d14a850105b8a9000873bd797b520cbbae3d17 Mon Sep 17 00:00:00 2001 From: Dmitry Bogdanov Date: Sat, 25 May 2019 09:58:01 +0000 Subject: [PATCH] net: aquantia: check rx csum for all packets in LRO session 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: 3bc2c65a11624 ("net: ethernet: aquantia: Add ring support code") Signed-off-by: Igor Russkikh Signed-off-by: Dmitry Bogdanov Signed-off-by: David S. Miller --- .../net/ethernet/aquantia/atlantic/aq_ring.c | 44 +++++++++++++------ 1 file changed, 31 insertions(+), 13 deletions(-) diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c index 63ed004159042..941b0beb87efa 100644 --- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c +++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c @@ -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; - next_ = buff_->next, - buff_ = &self->buff_ring[next_]) { + buff_ = buff; + do { + next_ = buff_->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); } } -- 2.39.5