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i40e: set xdp_rxq_info::frag_size
[ Upstream commita045d2f2d0
] i40e support XDP multi-buffer so it is supposed to use __xdp_rxq_info_reg() instead of xdp_rxq_info_reg() and set the frag_size. It can not be simply converted at existing callsite because rx_buf_len could be un-initialized, so let us register xdp_rxq_info within i40e_configure_rx_ring(), which happen to be called with already initialized rx_buf_len value. Commit5180ff1364
("i40e: use int for i40e_status") converted 'err' to int, so two variables to deal with return codes are not needed within i40e_configure_rx_ring(). Remove 'ret' and use 'err' to handle status from xdp_rxq_info registration. Fixes:e213ced19b
("i40e: add support for XDP multi-buffer Rx") Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Link: https://lore.kernel.org/r/20240124191602.566724-11-maciej.fijalkowski@intel.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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parent
6ae1d209c6
commit
f95b542f3a
2 changed files with 24 additions and 25 deletions
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@ -3578,40 +3578,48 @@ static int i40e_configure_rx_ring(struct i40e_ring *ring)
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struct i40e_hmc_obj_rxq rx_ctx;
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int err = 0;
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bool ok;
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int ret;
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bitmap_zero(ring->state, __I40E_RING_STATE_NBITS);
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/* clear the context structure first */
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memset(&rx_ctx, 0, sizeof(rx_ctx));
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if (ring->vsi->type == I40E_VSI_MAIN)
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xdp_rxq_info_unreg_mem_model(&ring->xdp_rxq);
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ring->rx_buf_len = vsi->rx_buf_len;
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/* XDP RX-queue info only needed for RX rings exposed to XDP */
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if (ring->vsi->type != I40E_VSI_MAIN)
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goto skip;
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if (!xdp_rxq_info_is_reg(&ring->xdp_rxq)) {
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err = __xdp_rxq_info_reg(&ring->xdp_rxq, ring->netdev,
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ring->queue_index,
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ring->q_vector->napi.napi_id,
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ring->rx_buf_len);
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if (err)
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return err;
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}
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ring->xsk_pool = i40e_xsk_pool(ring);
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if (ring->xsk_pool) {
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ring->rx_buf_len =
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xsk_pool_get_rx_frame_size(ring->xsk_pool);
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ret = xdp_rxq_info_reg_mem_model(&ring->xdp_rxq,
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ring->rx_buf_len = xsk_pool_get_rx_frame_size(ring->xsk_pool);
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err = xdp_rxq_info_reg_mem_model(&ring->xdp_rxq,
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MEM_TYPE_XSK_BUFF_POOL,
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NULL);
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if (ret)
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return ret;
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if (err)
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return err;
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dev_info(&vsi->back->pdev->dev,
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"Registered XDP mem model MEM_TYPE_XSK_BUFF_POOL on Rx ring %d\n",
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ring->queue_index);
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} else {
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ring->rx_buf_len = vsi->rx_buf_len;
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if (ring->vsi->type == I40E_VSI_MAIN) {
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ret = xdp_rxq_info_reg_mem_model(&ring->xdp_rxq,
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MEM_TYPE_PAGE_SHARED,
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NULL);
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if (ret)
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return ret;
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}
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err = xdp_rxq_info_reg_mem_model(&ring->xdp_rxq,
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MEM_TYPE_PAGE_SHARED,
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NULL);
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if (err)
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return err;
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}
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skip:
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xdp_init_buff(&ring->xdp, i40e_rx_pg_size(ring) / 2, &ring->xdp_rxq);
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rx_ctx.dbuff = DIV_ROUND_UP(ring->rx_buf_len,
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@ -1556,7 +1556,6 @@ void i40e_free_rx_resources(struct i40e_ring *rx_ring)
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int i40e_setup_rx_descriptors(struct i40e_ring *rx_ring)
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{
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struct device *dev = rx_ring->dev;
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int err;
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u64_stats_init(&rx_ring->syncp);
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@ -1577,14 +1576,6 @@ int i40e_setup_rx_descriptors(struct i40e_ring *rx_ring)
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rx_ring->next_to_process = 0;
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rx_ring->next_to_use = 0;
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/* XDP RX-queue info only needed for RX rings exposed to XDP */
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if (rx_ring->vsi->type == I40E_VSI_MAIN) {
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err = xdp_rxq_info_reg(&rx_ring->xdp_rxq, rx_ring->netdev,
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rx_ring->queue_index, rx_ring->q_vector->napi.napi_id);
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if (err < 0)
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return err;
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}
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rx_ring->xdp_prog = rx_ring->vsi->xdp_prog;
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rx_ring->rx_bi =
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