From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jithu Joseph Date: Thu, 22 Apr 2021 23:25:50 -0700 Subject: [Intel-wired-lan] [PATCH v6 4/9] igc: Refactor XDP rxq info registration In-Reply-To: <20210423062555.14972-1-jithu.joseph@intel.com> References: <20210423062555.14972-1-jithu.joseph@intel.com> Message-ID: <20210423062555.14972-5-jithu.joseph@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: intel-wired-lan@osuosl.org List-ID: From: Andre Guedes Refactor XDP rxq info registration code, preparing the driver for AF_XDP zero-copy support which is added by upcoming patches. Currently, xdp_rxq and memory model are both registered during RX resource setup time by igc_xdp_register_rxq_info() helper. With AF_XDP, we want to register the memory model later on while configuring the ring because we will know which memory model type to register (MEM_TYPE_PAGE_SHARED or MEM_TYPE_XSK_BUFF_POOL). The helpers igc_xdp_register_rxq_info() and igc_xdp_unregister_rxq_ info() are not useful anymore so they are removed. Signed-off-by: Andre Guedes Signed-off-by: Vedang Patel Signed-off-by: Jithu Joseph Reviewed-by: Maciej Fijalkowski --- drivers/net/ethernet/intel/igc/igc_main.c | 16 ++++++++++---- drivers/net/ethernet/intel/igc/igc_xdp.c | 27 ----------------------- drivers/net/ethernet/intel/igc/igc_xdp.h | 3 --- 3 files changed, 12 insertions(+), 34 deletions(-) diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c index 82bed83766c8..47f45dbb7c86 100644 --- a/drivers/net/ethernet/intel/igc/igc_main.c +++ b/drivers/net/ethernet/intel/igc/igc_main.c @@ -419,7 +419,7 @@ void igc_free_rx_resources(struct igc_ring *rx_ring) { igc_clean_rx_ring(rx_ring); - igc_xdp_unregister_rxq_info(rx_ring); + xdp_rxq_info_unreg(&rx_ring->xdp_rxq); vfree(rx_ring->rx_buffer_info); rx_ring->rx_buffer_info = NULL; @@ -458,11 +458,16 @@ int igc_setup_rx_resources(struct igc_ring *rx_ring) { struct net_device *ndev = rx_ring->netdev; struct device *dev = rx_ring->dev; + u8 index = rx_ring->queue_index; int size, desc_len, res; - res = igc_xdp_register_rxq_info(rx_ring); - if (res < 0) + res = xdp_rxq_info_reg(&rx_ring->xdp_rxq, ndev, index, + rx_ring->q_vector->napi.napi_id); + if (res < 0) { + netdev_err(ndev, "Failed to register xdp_rxq index %u\n", + index); return res; + } size = sizeof(struct igc_rx_buffer) * rx_ring->count; rx_ring->rx_buffer_info = vzalloc(size); @@ -488,7 +493,7 @@ int igc_setup_rx_resources(struct igc_ring *rx_ring) return 0; err: - igc_xdp_unregister_rxq_info(rx_ring); + xdp_rxq_info_unreg(&rx_ring->xdp_rxq); vfree(rx_ring->rx_buffer_info); rx_ring->rx_buffer_info = NULL; netdev_err(ndev, "Unable to allocate memory for Rx descriptor ring\n"); @@ -536,6 +541,9 @@ static void igc_configure_rx_ring(struct igc_adapter *adapter, u32 srrctl = 0, rxdctl = 0; u64 rdba = ring->dma; + WARN_ON(xdp_rxq_info_reg_mem_model(&ring->xdp_rxq, + MEM_TYPE_PAGE_SHARED, NULL)); + if (igc_xdp_is_enabled(adapter)) set_ring_uses_large_buffer(ring); diff --git a/drivers/net/ethernet/intel/igc/igc_xdp.c b/drivers/net/ethernet/intel/igc/igc_xdp.c index 11133c4619bb..27c886a254f1 100644 --- a/drivers/net/ethernet/intel/igc/igc_xdp.c +++ b/drivers/net/ethernet/intel/igc/igc_xdp.c @@ -31,30 +31,3 @@ int igc_xdp_set_prog(struct igc_adapter *adapter, struct bpf_prog *prog, return 0; } - -int igc_xdp_register_rxq_info(struct igc_ring *ring) -{ - struct net_device *dev = ring->netdev; - int err; - - err = xdp_rxq_info_reg(&ring->xdp_rxq, dev, ring->queue_index, 0); - if (err) { - netdev_err(dev, "Failed to register xdp rxq info\n"); - return err; - } - - err = xdp_rxq_info_reg_mem_model(&ring->xdp_rxq, MEM_TYPE_PAGE_SHARED, - NULL); - if (err) { - netdev_err(dev, "Failed to register xdp rxq mem model\n"); - xdp_rxq_info_unreg(&ring->xdp_rxq); - return err; - } - - return 0; -} - -void igc_xdp_unregister_rxq_info(struct igc_ring *ring) -{ - xdp_rxq_info_unreg(&ring->xdp_rxq); -} diff --git a/drivers/net/ethernet/intel/igc/igc_xdp.h b/drivers/net/ethernet/intel/igc/igc_xdp.h index 412aa369e6ba..cdaa2c39b03a 100644 --- a/drivers/net/ethernet/intel/igc/igc_xdp.h +++ b/drivers/net/ethernet/intel/igc/igc_xdp.h @@ -7,9 +7,6 @@ int igc_xdp_set_prog(struct igc_adapter *adapter, struct bpf_prog *prog, struct netlink_ext_ack *extack); -int igc_xdp_register_rxq_info(struct igc_ring *ring); -void igc_xdp_unregister_rxq_info(struct igc_ring *ring); - static inline bool igc_xdp_is_enabled(struct igc_adapter *adapter) { return !!adapter->xdp_prog; -- 2.17.1