From: Corinna Vinschen <vinschen@redhat.com> To: intel-wired-lan@osuosl.org, netdev@vger.kernel.org, Vinicius Costa Gomes <vinicius.gomes@intel.com> Cc: Lennert Buytenhek <buytenh@wantstofly.org>, Alexander Lobakin <alexandr.lobakin@intel.com> Subject: [PATCH 2/3 net-next v5] igb: refactor XDP registration Date: Mon, 17 Jan 2022 19:29:14 +0100 [thread overview] Message-ID: <20220117182915.1283151-3-vinschen@redhat.com> (raw) In-Reply-To: <20220117182915.1283151-1-vinschen@redhat.com> On changing the RX ring parameters igb uses a hack to avoid a warning when calling xdp_rxq_info_reg via igb_setup_rx_resources. It just clears the struct xdp_rxq_info content. Change this to unregister if we're already registered instead. Align code to the igc code. Fixes: 9cbc948b5a20c ("igb: add XDP support") Signed-off-by: Corinna Vinschen <vinschen@redhat.com> --- drivers/net/ethernet/intel/igb/igb_ethtool.c | 4 ---- drivers/net/ethernet/intel/igb/igb_main.c | 12 +++++++++--- 2 files changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c index 51a2dcaf553d..2a5782063f4c 100644 --- a/drivers/net/ethernet/intel/igb/igb_ethtool.c +++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c @@ -965,10 +965,6 @@ static int igb_set_ringparam(struct net_device *netdev, memcpy(&temp_ring[i], adapter->rx_ring[i], sizeof(struct igb_ring)); - /* Clear copied XDP RX-queue info */ - memset(&temp_ring[i].xdp_rxq, 0, - sizeof(temp_ring[i].xdp_rxq)); - temp_ring[i].count = new_rx_count; err = igb_setup_rx_resources(&temp_ring[i]); if (err) { diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 38ba92022cd4..cea89d301bfd 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -4352,7 +4352,7 @@ int igb_setup_rx_resources(struct igb_ring *rx_ring) { struct igb_adapter *adapter = netdev_priv(rx_ring->netdev); struct device *dev = rx_ring->dev; - int size; + int size, res; size = sizeof(struct igb_rx_buffer) * rx_ring->count; @@ -4376,9 +4376,15 @@ int igb_setup_rx_resources(struct igb_ring *rx_ring) rx_ring->xdp_prog = adapter->xdp_prog; /* XDP RX-queue info */ - if (xdp_rxq_info_reg(&rx_ring->xdp_rxq, rx_ring->netdev, - rx_ring->queue_index, 0) < 0) + if (xdp_rxq_info_is_reg(&rx_ring->xdp_rxq)) + xdp_rxq_info_unreg(&rx_ring->xdp_rxq); + res = xdp_rxq_info_reg(&rx_ring->xdp_rxq, rx_ring->netdev, + rx_ring->queue_index, 0); + if (res < 0) { + dev_err(dev, "Failed to register xdp_rxq index %u\n", + rx_ring->queue_index); goto err; + } return 0; -- 2.27.0
WARNING: multiple messages have this Message-ID (diff)
From: Corinna Vinschen <vinschen@redhat.com> To: intel-wired-lan@osuosl.org Subject: [Intel-wired-lan] [PATCH 2/3 net-next v5] igb: refactor XDP registration Date: Mon, 17 Jan 2022 19:29:14 +0100 [thread overview] Message-ID: <20220117182915.1283151-3-vinschen@redhat.com> (raw) In-Reply-To: <20220117182915.1283151-1-vinschen@redhat.com> On changing the RX ring parameters igb uses a hack to avoid a warning when calling xdp_rxq_info_reg via igb_setup_rx_resources. It just clears the struct xdp_rxq_info content. Change this to unregister if we're already registered instead. Align code to the igc code. Fixes: 9cbc948b5a20c ("igb: add XDP support") Signed-off-by: Corinna Vinschen <vinschen@redhat.com> --- drivers/net/ethernet/intel/igb/igb_ethtool.c | 4 ---- drivers/net/ethernet/intel/igb/igb_main.c | 12 +++++++++--- 2 files changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c index 51a2dcaf553d..2a5782063f4c 100644 --- a/drivers/net/ethernet/intel/igb/igb_ethtool.c +++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c @@ -965,10 +965,6 @@ static int igb_set_ringparam(struct net_device *netdev, memcpy(&temp_ring[i], adapter->rx_ring[i], sizeof(struct igb_ring)); - /* Clear copied XDP RX-queue info */ - memset(&temp_ring[i].xdp_rxq, 0, - sizeof(temp_ring[i].xdp_rxq)); - temp_ring[i].count = new_rx_count; err = igb_setup_rx_resources(&temp_ring[i]); if (err) { diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 38ba92022cd4..cea89d301bfd 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -4352,7 +4352,7 @@ int igb_setup_rx_resources(struct igb_ring *rx_ring) { struct igb_adapter *adapter = netdev_priv(rx_ring->netdev); struct device *dev = rx_ring->dev; - int size; + int size, res; size = sizeof(struct igb_rx_buffer) * rx_ring->count; @@ -4376,9 +4376,15 @@ int igb_setup_rx_resources(struct igb_ring *rx_ring) rx_ring->xdp_prog = adapter->xdp_prog; /* XDP RX-queue info */ - if (xdp_rxq_info_reg(&rx_ring->xdp_rxq, rx_ring->netdev, - rx_ring->queue_index, 0) < 0) + if (xdp_rxq_info_is_reg(&rx_ring->xdp_rxq)) + xdp_rxq_info_unreg(&rx_ring->xdp_rxq); + res = xdp_rxq_info_reg(&rx_ring->xdp_rxq, rx_ring->netdev, + rx_ring->queue_index, 0); + if (res < 0) { + dev_err(dev, "Failed to register xdp_rxq index %u\n", + rx_ring->queue_index); goto err; + } return 0; -- 2.27.0
next prev parent reply other threads:[~2022-01-17 18:29 UTC|newest] Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-01-17 18:29 [PATCH 0/3 net-next v5] igb/igc: fix XDP registration Corinna Vinschen 2022-01-17 18:29 ` [Intel-wired-lan] " Corinna Vinschen 2022-01-17 18:29 ` [PATCH 1/3 net-next v5] igc: avoid kernel warning when changing RX ring parameters Corinna Vinschen 2022-01-17 18:29 ` [Intel-wired-lan] " Corinna Vinschen 2022-01-17 18:29 ` Corinna Vinschen [this message] 2022-01-17 18:29 ` [Intel-wired-lan] [PATCH 2/3 net-next v5] igb: refactor XDP registration Corinna Vinschen 2022-01-18 15:05 ` Alexander Lobakin 2022-01-18 15:05 ` [Intel-wired-lan] " Alexander Lobakin 2022-01-19 6:08 ` Corinna Vinschen 2022-01-19 6:08 ` [Intel-wired-lan] " Corinna Vinschen 2022-01-17 18:29 ` [PATCH 3/3 net-next v5] igb/igc: RX queues: fix DMA leak in error case Corinna Vinschen 2022-01-17 18:29 ` [Intel-wired-lan] " Corinna Vinschen 2022-01-18 6:01 ` Lennert Buytenhek 2022-01-18 6:01 ` [Intel-wired-lan] " Lennert Buytenhek 2022-01-18 8:26 ` Corinna Vinschen 2022-01-18 8:26 ` [Intel-wired-lan] " Corinna Vinschen
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