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Date: Tue, 28 Jul 2020 09:04:55 +0200
From: Björn Töpel <bjorn.topel@...el.com>
To: Magnus Karlsson <magnus.karlsson@...el.com>, ast@...nel.org,
daniel@...earbox.net, netdev@...r.kernel.org,
jonathan.lemon@...il.com, maximmi@...lanox.com
Cc: bpf@...r.kernel.org, jeffrey.t.kirsher@...el.com,
anthony.l.nguyen@...el.com, maciej.fijalkowski@...el.com,
maciejromanfijalkowski@...il.com, cristian.dumitrescu@...el.com
Subject: Re: [PATCH bpf-next v4 02/14] xsk: i40e: ice: ixgbe: mlx5: rename xsk
zero-copy driver interfaces
On 2020-07-21 07:03, Magnus Karlsson wrote:
> Rename the AF_XDP zero-copy driver interface functions to better
> reflect what they do after the replacement of umems with buffer
> pools in the previous commit. Mostly it is about replacing the
> umem name from the function names with xsk_buff and also have
> them take the a buffer pool pointer instead of a umem. The
> various ring functions have also been renamed in the process so
> that they have the same naming convention as the internal
> functions in xsk_queue.h. This so that it will be clearer what
> they do and also for consistency.
>
> Signed-off-by: Magnus Karlsson <magnus.karlsson@...el.com>
Acked-by: Björn Töpel <bjorn.topel@...el.com>
> ---
> drivers/net/ethernet/intel/i40e/i40e_main.c | 6 +-
> drivers/net/ethernet/intel/i40e/i40e_xsk.c | 34 +++---
> drivers/net/ethernet/intel/ice/ice_base.c | 6 +-
> drivers/net/ethernet/intel/ice/ice_xsk.c | 34 +++---
> drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 6 +-
> drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c | 32 +++---
> drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c | 4 +-
> .../net/ethernet/mellanox/mlx5/core/en/xsk/pool.c | 12 +--
> .../net/ethernet/mellanox/mlx5/core/en/xsk/rx.h | 8 +-
> .../net/ethernet/mellanox/mlx5/core/en/xsk/tx.c | 10 +-
> .../net/ethernet/mellanox/mlx5/core/en/xsk/tx.h | 6 +-
> drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 2 +-
> drivers/net/ethernet/mellanox/mlx5/core/en_rx.c | 4 +-
> include/net/xdp_sock.h | 1 +
> include/net/xdp_sock_drv.h | 114 +++++++++++----------
> net/ethtool/channels.c | 2 +-
> net/ethtool/ioctl.c | 2 +-
> net/xdp/xdp_umem.c | 24 ++---
> net/xdp/xsk.c | 45 ++++----
> 19 files changed, 182 insertions(+), 170 deletions(-)
>
> diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
> index e775376..5eb2024 100644
> --- a/drivers/net/ethernet/intel/i40e/i40e_main.c
> +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
> @@ -3138,7 +3138,7 @@ static struct xsk_buff_pool *i40e_xsk_pool(struct i40e_ring *ring)
> if (!xdp_on || !test_bit(qid, ring->vsi->af_xdp_zc_qps))
> return NULL;
>
> - return xdp_get_xsk_pool_from_qid(ring->vsi->netdev, qid);
> + return xsk_get_pool_from_qid(ring->vsi->netdev, qid);
> }
>
> /**
> @@ -3286,7 +3286,7 @@ static int i40e_configure_rx_ring(struct i40e_ring *ring)
> if (ret)
> return ret;
> ring->rx_buf_len =
> - xsk_umem_get_rx_frame_size(ring->xsk_pool->umem);
> + xsk_pool_get_rx_frame_size(ring->xsk_pool);
> /* For AF_XDP ZC, we disallow packets to span on
> * multiple buffers, thus letting us skip that
> * handling in the fast-path.
> @@ -3370,7 +3370,7 @@ static int i40e_configure_rx_ring(struct i40e_ring *ring)
> writel(0, ring->tail);
>
> if (ring->xsk_pool) {
> - xsk_buff_set_rxq_info(ring->xsk_pool->umem, &ring->xdp_rxq);
> + xsk_pool_set_rxq_info(ring->xsk_pool, &ring->xdp_rxq);
> ok = i40e_alloc_rx_buffers_zc(ring, I40E_DESC_UNUSED(ring));
> } else {
> ok = !i40e_alloc_rx_buffers(ring, I40E_DESC_UNUSED(ring));
> diff --git a/drivers/net/ethernet/intel/i40e/i40e_xsk.c b/drivers/net/ethernet/intel/i40e/i40e_xsk.c
> index 00e9fe6..95b9a7e 100644
> --- a/drivers/net/ethernet/intel/i40e/i40e_xsk.c
> +++ b/drivers/net/ethernet/intel/i40e/i40e_xsk.c
> @@ -55,8 +55,7 @@ static int i40e_xsk_pool_enable(struct i40e_vsi *vsi,
> qid >= netdev->real_num_tx_queues)
> return -EINVAL;
>
> - err = xsk_buff_dma_map(pool->umem, &vsi->back->pdev->dev,
> - I40E_RX_DMA_ATTR);
> + err = xsk_pool_dma_map(pool, &vsi->back->pdev->dev, I40E_RX_DMA_ATTR);
> if (err)
> return err;
>
> @@ -97,7 +96,7 @@ static int i40e_xsk_pool_disable(struct i40e_vsi *vsi, u16 qid)
> bool if_running;
> int err;
>
> - pool = xdp_get_xsk_pool_from_qid(netdev, qid);
> + pool = xsk_get_pool_from_qid(netdev, qid);
> if (!pool)
> return -EINVAL;
>
> @@ -110,7 +109,7 @@ static int i40e_xsk_pool_disable(struct i40e_vsi *vsi, u16 qid)
> }
>
> clear_bit(qid, vsi->af_xdp_zc_qps);
> - xsk_buff_dma_unmap(pool->umem, I40E_RX_DMA_ATTR);
> + xsk_pool_dma_unmap(pool, I40E_RX_DMA_ATTR);
>
> if (if_running) {
> err = i40e_queue_pair_enable(vsi, qid);
> @@ -196,7 +195,7 @@ bool i40e_alloc_rx_buffers_zc(struct i40e_ring *rx_ring, u16 count)
> rx_desc = I40E_RX_DESC(rx_ring, ntu);
> bi = i40e_rx_bi(rx_ring, ntu);
> do {
> - xdp = xsk_buff_alloc(rx_ring->xsk_pool->umem);
> + xdp = xsk_buff_alloc(rx_ring->xsk_pool);
> if (!xdp) {
> ok = false;
> goto no_buffers;
> @@ -363,11 +362,11 @@ int i40e_clean_rx_irq_zc(struct i40e_ring *rx_ring, int budget)
> i40e_finalize_xdp_rx(rx_ring, xdp_xmit);
> i40e_update_rx_stats(rx_ring, total_rx_bytes, total_rx_packets);
>
> - if (xsk_umem_uses_need_wakeup(rx_ring->xsk_pool->umem)) {
> + if (xsk_uses_need_wakeup(rx_ring->xsk_pool)) {
> if (failure || rx_ring->next_to_clean == rx_ring->next_to_use)
> - xsk_set_rx_need_wakeup(rx_ring->xsk_pool->umem);
> + xsk_set_rx_need_wakeup(rx_ring->xsk_pool);
> else
> - xsk_clear_rx_need_wakeup(rx_ring->xsk_pool->umem);
> + xsk_clear_rx_need_wakeup(rx_ring->xsk_pool);
>
> return (int)total_rx_packets;
> }
> @@ -390,12 +389,11 @@ static bool i40e_xmit_zc(struct i40e_ring *xdp_ring, unsigned int budget)
> dma_addr_t dma;
>
> while (budget-- > 0) {
> - if (!xsk_umem_consume_tx(xdp_ring->xsk_pool->umem, &desc))
> + if (!xsk_tx_peek_desc(xdp_ring->xsk_pool, &desc))
> break;
>
> - dma = xsk_buff_raw_get_dma(xdp_ring->xsk_pool->umem,
> - desc.addr);
> - xsk_buff_raw_dma_sync_for_device(xdp_ring->xsk_pool->umem, dma,
> + dma = xsk_buff_raw_get_dma(xdp_ring->xsk_pool, desc.addr);
> + xsk_buff_raw_dma_sync_for_device(xdp_ring->xsk_pool, dma,
> desc.len);
>
> tx_bi = &xdp_ring->tx_bi[xdp_ring->next_to_use];
> @@ -422,7 +420,7 @@ static bool i40e_xmit_zc(struct i40e_ring *xdp_ring, unsigned int budget)
> I40E_TXD_QW1_CMD_SHIFT);
> i40e_xdp_ring_update_tail(xdp_ring);
>
> - xsk_umem_consume_tx_done(xdp_ring->xsk_pool->umem);
> + xsk_tx_release(xdp_ring->xsk_pool);
> i40e_update_tx_stats(xdp_ring, sent_frames, total_bytes);
> }
>
> @@ -494,13 +492,13 @@ bool i40e_clean_xdp_tx_irq(struct i40e_vsi *vsi, struct i40e_ring *tx_ring)
> tx_ring->next_to_clean -= tx_ring->count;
>
> if (xsk_frames)
> - xsk_umem_complete_tx(bp->umem, xsk_frames);
> + xsk_tx_completed(bp, xsk_frames);
>
> i40e_arm_wb(tx_ring, vsi, completed_frames);
>
> out_xmit:
> - if (xsk_umem_uses_need_wakeup(tx_ring->xsk_pool->umem))
> - xsk_set_tx_need_wakeup(tx_ring->xsk_pool->umem);
> + if (xsk_uses_need_wakeup(tx_ring->xsk_pool))
> + xsk_set_tx_need_wakeup(tx_ring->xsk_pool);
>
> return i40e_xmit_zc(tx_ring, I40E_DESC_UNUSED(tx_ring));
> }
> @@ -591,7 +589,7 @@ void i40e_xsk_clean_tx_ring(struct i40e_ring *tx_ring)
> }
>
> if (xsk_frames)
> - xsk_umem_complete_tx(bp->umem, xsk_frames);
> + xsk_tx_completed(bp, xsk_frames);
> }
>
> /**
> @@ -607,7 +605,7 @@ bool i40e_xsk_any_rx_ring_enabled(struct i40e_vsi *vsi)
> int i;
>
> for (i = 0; i < vsi->num_queue_pairs; i++) {
> - if (xdp_get_xsk_pool_from_qid(netdev, i))
> + if (xsk_get_pool_from_qid(netdev, i))
> return true;
> }
>
> diff --git a/drivers/net/ethernet/intel/ice/ice_base.c b/drivers/net/ethernet/intel/ice/ice_base.c
> index 3c92448..fe4320e 100644
> --- a/drivers/net/ethernet/intel/ice/ice_base.c
> +++ b/drivers/net/ethernet/intel/ice/ice_base.c
> @@ -313,7 +313,7 @@ int ice_setup_rx_ctx(struct ice_ring *ring)
> xdp_rxq_info_unreg_mem_model(&ring->xdp_rxq);
>
> ring->rx_buf_len =
> - xsk_umem_get_rx_frame_size(ring->xsk_pool->umem);
> + xsk_pool_get_rx_frame_size(ring->xsk_pool);
> /* For AF_XDP ZC, we disallow packets to span on
> * multiple buffers, thus letting us skip that
> * handling in the fast-path.
> @@ -324,7 +324,7 @@ int ice_setup_rx_ctx(struct ice_ring *ring)
> NULL);
> if (err)
> return err;
> - xsk_buff_set_rxq_info(ring->xsk_pool->umem, &ring->xdp_rxq);
> + xsk_pool_set_rxq_info(ring->xsk_pool, &ring->xdp_rxq);
>
> dev_info(dev, "Registered XDP mem model MEM_TYPE_XSK_BUFF_POOL on Rx ring %d\n",
> ring->q_index);
> @@ -418,7 +418,7 @@ int ice_setup_rx_ctx(struct ice_ring *ring)
> writel(0, ring->tail);
>
> if (ring->xsk_pool) {
> - if (!xsk_buff_can_alloc(ring->xsk_pool->umem, num_bufs)) {
> + if (!xsk_buff_can_alloc(ring->xsk_pool, num_bufs)) {
> dev_warn(dev, "XSK buffer pool does not provide enough addresses to fill %d buffers on Rx ring %d\n",
> num_bufs, ring->q_index);
> dev_warn(dev, "Change Rx ring/fill queue size to avoid performance issues\n");
> diff --git a/drivers/net/ethernet/intel/ice/ice_xsk.c b/drivers/net/ethernet/intel/ice/ice_xsk.c
> index 8f95244..d3c3b3f 100644
> --- a/drivers/net/ethernet/intel/ice/ice_xsk.c
> +++ b/drivers/net/ethernet/intel/ice/ice_xsk.c
> @@ -312,7 +312,7 @@ static int ice_xsk_pool_disable(struct ice_vsi *vsi, u16 qid)
> !vsi->xsk_pools[qid])
> return -EINVAL;
>
> - xsk_buff_dma_unmap(vsi->xsk_pools[qid]->umem, ICE_RX_DMA_ATTR);
> + xsk_pool_dma_unmap(vsi->xsk_pools[qid], ICE_RX_DMA_ATTR);
> ice_xsk_remove_pool(vsi, qid);
>
> return 0;
> @@ -349,7 +349,7 @@ ice_xsk_pool_enable(struct ice_vsi *vsi, struct xsk_buff_pool *pool, u16 qid)
> vsi->xsk_pools[qid] = pool;
> vsi->num_xsk_pools_used++;
>
> - err = xsk_buff_dma_map(vsi->xsk_pools[qid]->umem, ice_pf_to_dev(vsi->back),
> + err = xsk_pool_dma_map(vsi->xsk_pools[qid], ice_pf_to_dev(vsi->back),
> ICE_RX_DMA_ATTR);
> if (err)
> return err;
> @@ -426,7 +426,7 @@ bool ice_alloc_rx_bufs_zc(struct ice_ring *rx_ring, u16 count)
> rx_buf = &rx_ring->rx_buf[ntu];
>
> do {
> - rx_buf->xdp = xsk_buff_alloc(rx_ring->xsk_pool->umem);
> + rx_buf->xdp = xsk_buff_alloc(rx_ring->xsk_pool);
> if (!rx_buf->xdp) {
> ret = true;
> break;
> @@ -647,11 +647,11 @@ int ice_clean_rx_irq_zc(struct ice_ring *rx_ring, int budget)
> ice_finalize_xdp_rx(rx_ring, xdp_xmit);
> ice_update_rx_ring_stats(rx_ring, total_rx_packets, total_rx_bytes);
>
> - if (xsk_umem_uses_need_wakeup(rx_ring->xsk_pool->umem)) {
> + if (xsk_uses_need_wakeup(rx_ring->xsk_pool)) {
> if (failure || rx_ring->next_to_clean == rx_ring->next_to_use)
> - xsk_set_rx_need_wakeup(rx_ring->xsk_pool->umem);
> + xsk_set_rx_need_wakeup(rx_ring->xsk_pool);
> else
> - xsk_clear_rx_need_wakeup(rx_ring->xsk_pool->umem);
> + xsk_clear_rx_need_wakeup(rx_ring->xsk_pool);
>
> return (int)total_rx_packets;
> }
> @@ -684,11 +684,11 @@ static bool ice_xmit_zc(struct ice_ring *xdp_ring, int budget)
>
> tx_buf = &xdp_ring->tx_buf[xdp_ring->next_to_use];
>
> - if (!xsk_umem_consume_tx(xdp_ring->xsk_pool->umem, &desc))
> + if (!xsk_tx_peek_desc(xdp_ring->xsk_pool, &desc))
> break;
>
> - dma = xsk_buff_raw_get_dma(xdp_ring->xsk_pool->umem, desc.addr);
> - xsk_buff_raw_dma_sync_for_device(xdp_ring->xsk_pool->umem, dma,
> + dma = xsk_buff_raw_get_dma(xdp_ring->xsk_pool, desc.addr);
> + xsk_buff_raw_dma_sync_for_device(xdp_ring->xsk_pool, dma,
> desc.len);
>
> tx_buf->bytecount = desc.len;
> @@ -705,9 +705,9 @@ static bool ice_xmit_zc(struct ice_ring *xdp_ring, int budget)
>
> if (tx_desc) {
> ice_xdp_ring_update_tail(xdp_ring);
> - xsk_umem_consume_tx_done(xdp_ring->xsk_pool->umem);
> - if (xsk_umem_uses_need_wakeup(xdp_ring->xsk_pool->umem))
> - xsk_clear_tx_need_wakeup(xdp_ring->xsk_pool->umem);
> + xsk_tx_release(xdp_ring->xsk_pool);
> + if (xsk_uses_need_wakeup(xdp_ring->xsk_pool))
> + xsk_clear_tx_need_wakeup(xdp_ring->xsk_pool);
> }
>
> return budget > 0 && work_done;
> @@ -781,13 +781,13 @@ bool ice_clean_tx_irq_zc(struct ice_ring *xdp_ring, int budget)
> xdp_ring->next_to_clean = ntc;
>
> if (xsk_frames)
> - xsk_umem_complete_tx(xdp_ring->xsk_pool->umem, xsk_frames);
> + xsk_tx_completed(xdp_ring->xsk_pool, xsk_frames);
>
> - if (xsk_umem_uses_need_wakeup(xdp_ring->xsk_pool->umem)) {
> + if (xsk_uses_need_wakeup(xdp_ring->xsk_pool)) {
> if (xdp_ring->next_to_clean == xdp_ring->next_to_use)
> - xsk_set_tx_need_wakeup(xdp_ring->xsk_pool->umem);
> + xsk_set_tx_need_wakeup(xdp_ring->xsk_pool);
> else
> - xsk_clear_tx_need_wakeup(xdp_ring->xsk_pool->umem);
> + xsk_clear_tx_need_wakeup(xdp_ring->xsk_pool);
> }
>
> ice_update_tx_ring_stats(xdp_ring, total_packets, total_bytes);
> @@ -904,5 +904,5 @@ void ice_xsk_clean_xdp_ring(struct ice_ring *xdp_ring)
> }
>
> if (xsk_frames)
> - xsk_umem_complete_tx(xdp_ring->xsk_pool->umem, xsk_frames);
> + xsk_tx_completed(xdp_ring->xsk_pool, xsk_frames);
> }
> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> index b423971..ae95917 100644
> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> @@ -3714,7 +3714,7 @@ static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter,
>
> /* configure the packet buffer length */
> if (rx_ring->xsk_pool) {
> - u32 xsk_buf_len = xsk_umem_get_rx_frame_size(rx_ring->xsk_pool->umem);
> + u32 xsk_buf_len = xsk_pool_get_rx_frame_size(rx_ring->xsk_pool);
>
> /* If the MAC support setting RXDCTL.RLPML, the
> * SRRCTL[n].BSIZEPKT is set to PAGE_SIZE and
> @@ -4064,7 +4064,7 @@ void ixgbe_configure_rx_ring(struct ixgbe_adapter *adapter,
> WARN_ON(xdp_rxq_info_reg_mem_model(&ring->xdp_rxq,
> MEM_TYPE_XSK_BUFF_POOL,
> NULL));
> - xsk_buff_set_rxq_info(ring->xsk_pool->umem, &ring->xdp_rxq);
> + xsk_pool_set_rxq_info(ring->xsk_pool, &ring->xdp_rxq);
> } else {
> WARN_ON(xdp_rxq_info_reg_mem_model(&ring->xdp_rxq,
> MEM_TYPE_PAGE_SHARED, NULL));
> @@ -4120,7 +4120,7 @@ void ixgbe_configure_rx_ring(struct ixgbe_adapter *adapter,
> }
>
> if (ring->xsk_pool && hw->mac.type != ixgbe_mac_82599EB) {
> - u32 xsk_buf_len = xsk_umem_get_rx_frame_size(ring->xsk_pool->umem);
> + u32 xsk_buf_len = xsk_pool_get_rx_frame_size(ring->xsk_pool);
>
> rxdctl &= ~(IXGBE_RXDCTL_RLPMLMASK |
> IXGBE_RXDCTL_RLPML_EN);
> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c
> index 8ad954f..6af34da 100644
> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c
> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c
> @@ -17,7 +17,7 @@ struct xsk_buff_pool *ixgbe_xsk_pool(struct ixgbe_adapter *adapter,
> if (!xdp_on || !test_bit(qid, adapter->af_xdp_zc_qps))
> return NULL;
>
> - return xdp_get_xsk_pool_from_qid(adapter->netdev, qid);
> + return xsk_get_pool_from_qid(adapter->netdev, qid);
> }
>
> static int ixgbe_xsk_pool_enable(struct ixgbe_adapter *adapter,
> @@ -35,7 +35,7 @@ static int ixgbe_xsk_pool_enable(struct ixgbe_adapter *adapter,
> qid >= netdev->real_num_tx_queues)
> return -EINVAL;
>
> - err = xsk_buff_dma_map(pool->umem, &adapter->pdev->dev, IXGBE_RX_DMA_ATTR);
> + err = xsk_pool_dma_map(pool, &adapter->pdev->dev, IXGBE_RX_DMA_ATTR);
> if (err)
> return err;
>
> @@ -64,7 +64,7 @@ static int ixgbe_xsk_pool_disable(struct ixgbe_adapter *adapter, u16 qid)
> struct xsk_buff_pool *pool;
> bool if_running;
>
> - pool = xdp_get_xsk_pool_from_qid(adapter->netdev, qid);
> + pool = xsk_get_pool_from_qid(adapter->netdev, qid);
> if (!pool)
> return -EINVAL;
>
> @@ -75,7 +75,7 @@ static int ixgbe_xsk_pool_disable(struct ixgbe_adapter *adapter, u16 qid)
> ixgbe_txrx_ring_disable(adapter, qid);
>
> clear_bit(qid, adapter->af_xdp_zc_qps);
> - xsk_buff_dma_unmap(pool->umem, IXGBE_RX_DMA_ATTR);
> + xsk_pool_dma_unmap(pool, IXGBE_RX_DMA_ATTR);
>
> if (if_running)
> ixgbe_txrx_ring_enable(adapter, qid);
> @@ -150,7 +150,7 @@ bool ixgbe_alloc_rx_buffers_zc(struct ixgbe_ring *rx_ring, u16 count)
> i -= rx_ring->count;
>
> do {
> - bi->xdp = xsk_buff_alloc(rx_ring->xsk_pool->umem);
> + bi->xdp = xsk_buff_alloc(rx_ring->xsk_pool);
> if (!bi->xdp) {
> ok = false;
> break;
> @@ -345,11 +345,11 @@ int ixgbe_clean_rx_irq_zc(struct ixgbe_q_vector *q_vector,
> q_vector->rx.total_packets += total_rx_packets;
> q_vector->rx.total_bytes += total_rx_bytes;
>
> - if (xsk_umem_uses_need_wakeup(rx_ring->xsk_pool->umem)) {
> + if (xsk_uses_need_wakeup(rx_ring->xsk_pool)) {
> if (failure || rx_ring->next_to_clean == rx_ring->next_to_use)
> - xsk_set_rx_need_wakeup(rx_ring->xsk_pool->umem);
> + xsk_set_rx_need_wakeup(rx_ring->xsk_pool);
> else
> - xsk_clear_rx_need_wakeup(rx_ring->xsk_pool->umem);
> + xsk_clear_rx_need_wakeup(rx_ring->xsk_pool);
>
> return (int)total_rx_packets;
> }
> @@ -389,11 +389,11 @@ static bool ixgbe_xmit_zc(struct ixgbe_ring *xdp_ring, unsigned int budget)
> break;
> }
>
> - if (!xsk_umem_consume_tx(pool->umem, &desc))
> + if (!xsk_tx_peek_desc(pool, &desc))
> break;
>
> - dma = xsk_buff_raw_get_dma(pool->umem, desc.addr);
> - xsk_buff_raw_dma_sync_for_device(pool->umem, dma, desc.len);
> + dma = xsk_buff_raw_get_dma(pool, desc.addr);
> + xsk_buff_raw_dma_sync_for_device(pool, dma, desc.len);
>
> tx_bi = &xdp_ring->tx_buffer_info[xdp_ring->next_to_use];
> tx_bi->bytecount = desc.len;
> @@ -419,7 +419,7 @@ static bool ixgbe_xmit_zc(struct ixgbe_ring *xdp_ring, unsigned int budget)
>
> if (tx_desc) {
> ixgbe_xdp_ring_update_tail(xdp_ring);
> - xsk_umem_consume_tx_done(pool->umem);
> + xsk_tx_release(pool);
> }
>
> return !!budget && work_done;
> @@ -485,10 +485,10 @@ bool ixgbe_clean_xdp_tx_irq(struct ixgbe_q_vector *q_vector,
> q_vector->tx.total_packets += total_packets;
>
> if (xsk_frames)
> - xsk_umem_complete_tx(pool->umem, xsk_frames);
> + xsk_tx_completed(pool, xsk_frames);
>
> - if (xsk_umem_uses_need_wakeup(pool->umem))
> - xsk_set_tx_need_wakeup(pool->umem);
> + if (xsk_uses_need_wakeup(pool))
> + xsk_set_tx_need_wakeup(pool);
>
> return ixgbe_xmit_zc(tx_ring, q_vector->tx.work_limit);
> }
> @@ -547,5 +547,5 @@ void ixgbe_xsk_clean_tx_ring(struct ixgbe_ring *tx_ring)
> }
>
> if (xsk_frames)
> - xsk_umem_complete_tx(pool->umem, xsk_frames);
> + xsk_tx_completed(pool, xsk_frames);
> }
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
> index c2e06f5..4385052 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
> @@ -446,7 +446,7 @@ bool mlx5e_poll_xdpsq_cq(struct mlx5e_cq *cq)
> } while ((++i < MLX5E_TX_CQ_POLL_BUDGET) && (cqe = mlx5_cqwq_get_cqe(&cq->wq)));
>
> if (xsk_frames)
> - xsk_umem_complete_tx(sq->xsk_pool->umem, xsk_frames);
> + xsk_tx_completed(sq->xsk_pool, xsk_frames);
>
> sq->stats->cqes += i;
>
> @@ -476,7 +476,7 @@ void mlx5e_free_xdpsq_descs(struct mlx5e_xdpsq *sq)
> }
>
> if (xsk_frames)
> - xsk_umem_complete_tx(sq->xsk_pool->umem, xsk_frames);
> + xsk_tx_completed(sq->xsk_pool, xsk_frames);
> }
>
> int mlx5e_xdp_xmit(struct net_device *dev, int n, struct xdp_frame **frames,
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/pool.c b/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/pool.c
> index 8ccd920..3503e77 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/pool.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/pool.c
> @@ -11,13 +11,13 @@ static int mlx5e_xsk_map_pool(struct mlx5e_priv *priv,
> {
> struct device *dev = priv->mdev->device;
>
> - return xsk_buff_dma_map(pool->umem, dev, 0);
> + return xsk_pool_dma_map(pool, dev, 0);
> }
>
> static void mlx5e_xsk_unmap_pool(struct mlx5e_priv *priv,
> struct xsk_buff_pool *pool)
> {
> - return xsk_buff_dma_unmap(pool->umem, 0);
> + return xsk_pool_dma_unmap(pool, 0);
> }
>
> static int mlx5e_xsk_get_pools(struct mlx5e_xsk *xsk)
> @@ -64,14 +64,14 @@ static void mlx5e_xsk_remove_pool(struct mlx5e_xsk *xsk, u16 ix)
>
> static bool mlx5e_xsk_is_pool_sane(struct xsk_buff_pool *pool)
> {
> - return xsk_umem_get_headroom(pool->umem) <= 0xffff &&
> - xsk_umem_get_chunk_size(pool->umem) <= 0xffff;
> + return xsk_pool_get_headroom(pool) <= 0xffff &&
> + xsk_pool_get_chunk_size(pool) <= 0xffff;
> }
>
> void mlx5e_build_xsk_param(struct xsk_buff_pool *pool, struct mlx5e_xsk_param *xsk)
> {
> - xsk->headroom = xsk_umem_get_headroom(pool->umem);
> - xsk->chunk_size = xsk_umem_get_chunk_size(pool->umem);
> + xsk->headroom = xsk_pool_get_headroom(pool);
> + xsk->chunk_size = xsk_pool_get_chunk_size(pool);
> }
>
> static int mlx5e_xsk_enable_locked(struct mlx5e_priv *priv,
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/rx.h b/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/rx.h
> index 3dd056a..7f88ccf 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/rx.h
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/rx.h
> @@ -22,7 +22,7 @@ struct sk_buff *mlx5e_xsk_skb_from_cqe_linear(struct mlx5e_rq *rq,
> static inline int mlx5e_xsk_page_alloc_pool(struct mlx5e_rq *rq,
> struct mlx5e_dma_info *dma_info)
> {
> - dma_info->xsk = xsk_buff_alloc(rq->xsk_pool->umem);
> + dma_info->xsk = xsk_buff_alloc(rq->xsk_pool);
> if (!dma_info->xsk)
> return -ENOMEM;
>
> @@ -38,13 +38,13 @@ static inline int mlx5e_xsk_page_alloc_pool(struct mlx5e_rq *rq,
>
> static inline bool mlx5e_xsk_update_rx_wakeup(struct mlx5e_rq *rq, bool alloc_err)
> {
> - if (!xsk_umem_uses_need_wakeup(rq->xsk_pool->umem))
> + if (!xsk_uses_need_wakeup(rq->xsk_pool))
> return alloc_err;
>
> if (unlikely(alloc_err))
> - xsk_set_rx_need_wakeup(rq->xsk_pool->umem);
> + xsk_set_rx_need_wakeup(rq->xsk_pool);
> else
> - xsk_clear_rx_need_wakeup(rq->xsk_pool->umem);
> + xsk_clear_rx_need_wakeup(rq->xsk_pool);
>
> return false;
> }
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.c
> index e46ca86..5d8b5fe 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.c
> @@ -83,7 +83,7 @@ bool mlx5e_xsk_tx(struct mlx5e_xdpsq *sq, unsigned int budget)
> break;
> }
>
> - if (!xsk_umem_consume_tx(pool->umem, &desc)) {
> + if (!xsk_tx_peek_desc(pool, &desc)) {
> /* TX will get stuck until something wakes it up by
> * triggering NAPI. Currently it's expected that the
> * application calls sendto() if there are consumed, but
> @@ -92,11 +92,11 @@ bool mlx5e_xsk_tx(struct mlx5e_xdpsq *sq, unsigned int budget)
> break;
> }
>
> - xdptxd.dma_addr = xsk_buff_raw_get_dma(pool->umem, desc.addr);
> - xdptxd.data = xsk_buff_raw_get_data(pool->umem, desc.addr);
> + xdptxd.dma_addr = xsk_buff_raw_get_dma(pool, desc.addr);
> + xdptxd.data = xsk_buff_raw_get_data(pool, desc.addr);
> xdptxd.len = desc.len;
>
> - xsk_buff_raw_dma_sync_for_device(pool->umem, xdptxd.dma_addr, xdptxd.len);
> + xsk_buff_raw_dma_sync_for_device(pool, xdptxd.dma_addr, xdptxd.len);
>
> if (unlikely(!sq->xmit_xdp_frame(sq, &xdptxd, &xdpi, check_result))) {
> if (sq->mpwqe.wqe)
> @@ -113,7 +113,7 @@ bool mlx5e_xsk_tx(struct mlx5e_xdpsq *sq, unsigned int budget)
> mlx5e_xdp_mpwqe_complete(sq);
> mlx5e_xmit_xdp_doorbell(sq);
>
> - xsk_umem_consume_tx_done(pool->umem);
> + xsk_tx_release(pool);
> }
>
> return !(budget && work_done);
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.h b/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.h
> index ddb61d5..a050850 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.h
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.h
> @@ -15,13 +15,13 @@ bool mlx5e_xsk_tx(struct mlx5e_xdpsq *sq, unsigned int budget);
>
> static inline void mlx5e_xsk_update_tx_wakeup(struct mlx5e_xdpsq *sq)
> {
> - if (!xsk_umem_uses_need_wakeup(sq->xsk_pool->umem))
> + if (!xsk_uses_need_wakeup(sq->xsk_pool))
> return;
>
> if (sq->pc != sq->cc)
> - xsk_clear_tx_need_wakeup(sq->xsk_pool->umem);
> + xsk_clear_tx_need_wakeup(sq->xsk_pool);
> else
> - xsk_set_tx_need_wakeup(sq->xsk_pool->umem);
> + xsk_set_tx_need_wakeup(sq->xsk_pool);
> }
>
> #endif /* __MLX5_EN_XSK_TX_H__ */
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
> index fa42822..d8c9996 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
> @@ -518,7 +518,7 @@ static int mlx5e_alloc_rq(struct mlx5e_channel *c,
> if (xsk) {
> err = xdp_rxq_info_reg_mem_model(&rq->xdp_rxq,
> MEM_TYPE_XSK_BUFF_POOL, NULL);
> - xsk_buff_set_rxq_info(rq->xsk_pool->umem, &rq->xdp_rxq);
> + xsk_pool_set_rxq_info(rq->xsk_pool, &rq->xdp_rxq);
> } else {
> /* Create a page_pool and register it with rxq */
> pp_params.order = 0;
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
> index 4f9a1d6..e054221 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
> @@ -390,7 +390,7 @@ static int mlx5e_alloc_rx_wqes(struct mlx5e_rq *rq, u16 ix, u8 wqe_bulk)
> * allocating one-by-one, failing and moving frames to the
> * Reuse Ring.
> */
> - if (unlikely(!xsk_buff_can_alloc(rq->xsk_pool->umem, pages_desired)))
> + if (unlikely(!xsk_buff_can_alloc(rq->xsk_pool, pages_desired)))
> return -ENOMEM;
> }
>
> @@ -489,7 +489,7 @@ static int mlx5e_alloc_rx_mpwqe(struct mlx5e_rq *rq, u16 ix)
> * one-by-one, failing and moving frames to the Reuse Ring.
> */
> if (rq->xsk_pool &&
> - unlikely(!xsk_buff_can_alloc(rq->xsk_pool->umem, MLX5_MPWRQ_PAGES_PER_WQE))) {
> + unlikely(!xsk_buff_can_alloc(rq->xsk_pool, MLX5_MPWRQ_PAGES_PER_WQE))) {
> err = -ENOMEM;
> goto err;
> }
> diff --git a/include/net/xdp_sock.h b/include/net/xdp_sock.h
> index c9d87cc..ccf6cb5 100644
> --- a/include/net/xdp_sock.h
> +++ b/include/net/xdp_sock.h
> @@ -52,6 +52,7 @@ struct xdp_sock {
> struct net_device *dev;
> struct xdp_umem *umem;
> struct list_head flush_node;
> + struct xsk_buff_pool *pool;
> u16 queue_id;
> bool zc;
> enum {
> diff --git a/include/net/xdp_sock_drv.h b/include/net/xdp_sock_drv.h
> index 5dc8d3c..a7c7d2e 100644
> --- a/include/net/xdp_sock_drv.h
> +++ b/include/net/xdp_sock_drv.h
> @@ -11,48 +11,50 @@
>
> #ifdef CONFIG_XDP_SOCKETS
>
> -void xsk_umem_complete_tx(struct xdp_umem *umem, u32 nb_entries);
> -bool xsk_umem_consume_tx(struct xdp_umem *umem, struct xdp_desc *desc);
> -void xsk_umem_consume_tx_done(struct xdp_umem *umem);
> -struct xsk_buff_pool *xdp_get_xsk_pool_from_qid(struct net_device *dev,
> - u16 queue_id);
> -void xsk_set_rx_need_wakeup(struct xdp_umem *umem);
> -void xsk_set_tx_need_wakeup(struct xdp_umem *umem);
> -void xsk_clear_rx_need_wakeup(struct xdp_umem *umem);
> -void xsk_clear_tx_need_wakeup(struct xdp_umem *umem);
> -bool xsk_umem_uses_need_wakeup(struct xdp_umem *umem);
> +void xsk_tx_completed(struct xsk_buff_pool *pool, u32 nb_entries);
> +bool xsk_tx_peek_desc(struct xsk_buff_pool *pool, struct xdp_desc *desc);
> +void xsk_tx_release(struct xsk_buff_pool *pool);
> +struct xsk_buff_pool *xsk_get_pool_from_qid(struct net_device *dev,
> + u16 queue_id);
> +void xsk_set_rx_need_wakeup(struct xsk_buff_pool *pool);
> +void xsk_set_tx_need_wakeup(struct xsk_buff_pool *pool);
> +void xsk_clear_rx_need_wakeup(struct xsk_buff_pool *pool);
> +void xsk_clear_tx_need_wakeup(struct xsk_buff_pool *pool);
> +bool xsk_uses_need_wakeup(struct xsk_buff_pool *pool);
>
> -static inline u32 xsk_umem_get_headroom(struct xdp_umem *umem)
> +static inline u32 xsk_pool_get_headroom(struct xsk_buff_pool *pool)
> {
> - return XDP_PACKET_HEADROOM + umem->headroom;
> + return XDP_PACKET_HEADROOM + pool->headroom;
> }
>
> -static inline u32 xsk_umem_get_chunk_size(struct xdp_umem *umem)
> +static inline u32 xsk_pool_get_chunk_size(struct xsk_buff_pool *pool)
> {
> - return umem->chunk_size;
> + return pool->chunk_size;
> }
>
> -static inline u32 xsk_umem_get_rx_frame_size(struct xdp_umem *umem)
> +static inline u32 xsk_pool_get_rx_frame_size(struct xsk_buff_pool *pool)
> {
> - return xsk_umem_get_chunk_size(umem) - xsk_umem_get_headroom(umem);
> + return xsk_pool_get_chunk_size(pool) - xsk_pool_get_headroom(pool);
> }
>
> -static inline void xsk_buff_set_rxq_info(struct xdp_umem *umem,
> +static inline void xsk_pool_set_rxq_info(struct xsk_buff_pool *pool,
> struct xdp_rxq_info *rxq)
> {
> - xp_set_rxq_info(umem->pool, rxq);
> + xp_set_rxq_info(pool, rxq);
> }
>
> -static inline void xsk_buff_dma_unmap(struct xdp_umem *umem,
> +static inline void xsk_pool_dma_unmap(struct xsk_buff_pool *pool,
> unsigned long attrs)
> {
> - xp_dma_unmap(umem->pool, attrs);
> + xp_dma_unmap(pool, attrs);
> }
>
> -static inline int xsk_buff_dma_map(struct xdp_umem *umem, struct device *dev,
> - unsigned long attrs)
> +static inline int xsk_pool_dma_map(struct xsk_buff_pool *pool,
> + struct device *dev, unsigned long attrs)
> {
> - return xp_dma_map(umem->pool, dev, attrs, umem->pgs, umem->npgs);
> + struct xdp_umem *umem = pool->umem;
> +
> + return xp_dma_map(pool, dev, attrs, umem->pgs, umem->npgs);
> }
>
> static inline dma_addr_t xsk_buff_xdp_get_dma(struct xdp_buff *xdp)
> @@ -69,14 +71,14 @@ static inline dma_addr_t xsk_buff_xdp_get_frame_dma(struct xdp_buff *xdp)
> return xp_get_frame_dma(xskb);
> }
>
> -static inline struct xdp_buff *xsk_buff_alloc(struct xdp_umem *umem)
> +static inline struct xdp_buff *xsk_buff_alloc(struct xsk_buff_pool *pool)
> {
> - return xp_alloc(umem->pool);
> + return xp_alloc(pool);
> }
>
> -static inline bool xsk_buff_can_alloc(struct xdp_umem *umem, u32 count)
> +static inline bool xsk_buff_can_alloc(struct xsk_buff_pool *pool, u32 count)
> {
> - return xp_can_alloc(umem->pool, count);
> + return xp_can_alloc(pool, count);
> }
>
> static inline void xsk_buff_free(struct xdp_buff *xdp)
> @@ -86,14 +88,15 @@ static inline void xsk_buff_free(struct xdp_buff *xdp)
> xp_free(xskb);
> }
>
> -static inline dma_addr_t xsk_buff_raw_get_dma(struct xdp_umem *umem, u64 addr)
> +static inline dma_addr_t xsk_buff_raw_get_dma(struct xsk_buff_pool *pool,
> + u64 addr)
> {
> - return xp_raw_get_dma(umem->pool, addr);
> + return xp_raw_get_dma(pool, addr);
> }
>
> -static inline void *xsk_buff_raw_get_data(struct xdp_umem *umem, u64 addr)
> +static inline void *xsk_buff_raw_get_data(struct xsk_buff_pool *pool, u64 addr)
> {
> - return xp_raw_get_data(umem->pool, addr);
> + return xp_raw_get_data(pool, addr);
> }
>
> static inline void xsk_buff_dma_sync_for_cpu(struct xdp_buff *xdp)
> @@ -103,83 +106,83 @@ static inline void xsk_buff_dma_sync_for_cpu(struct xdp_buff *xdp)
> xp_dma_sync_for_cpu(xskb);
> }
>
> -static inline void xsk_buff_raw_dma_sync_for_device(struct xdp_umem *umem,
> +static inline void xsk_buff_raw_dma_sync_for_device(struct xsk_buff_pool *pool,
> dma_addr_t dma,
> size_t size)
> {
> - xp_dma_sync_for_device(umem->pool, dma, size);
> + xp_dma_sync_for_device(pool, dma, size);
> }
>
> #else
>
> -static inline void xsk_umem_complete_tx(struct xdp_umem *umem, u32 nb_entries)
> +static inline void xsk_tx_completed(struct xsk_buff_pool *pool, u32 nb_entries)
> {
> }
>
> -static inline bool xsk_umem_consume_tx(struct xdp_umem *umem,
> - struct xdp_desc *desc)
> +static inline bool xsk_tx_peek_desc(struct xsk_buff_pool *pool,
> + struct xdp_desc *desc)
> {
> return false;
> }
>
> -static inline void xsk_umem_consume_tx_done(struct xdp_umem *umem)
> +static inline void xsk_tx_release(struct xsk_buff_pool *pool)
> {
> }
>
> static inline struct xsk_buff_pool *
> -xdp_get_xsk_pool_from_qid(struct net_device *dev, u16 queue_id)
> +xsk_get_pool_from_qid(struct net_device *dev, u16 queue_id)
> {
> return NULL;
> }
>
> -static inline void xsk_set_rx_need_wakeup(struct xdp_umem *umem)
> +static inline void xsk_set_rx_need_wakeup(struct xsk_buff_pool *pool)
> {
> }
>
> -static inline void xsk_set_tx_need_wakeup(struct xdp_umem *umem)
> +static inline void xsk_set_tx_need_wakeup(struct xsk_buff_pool *pool)
> {
> }
>
> -static inline void xsk_clear_rx_need_wakeup(struct xdp_umem *umem)
> +static inline void xsk_clear_rx_need_wakeup(struct xsk_buff_pool *pool)
> {
> }
>
> -static inline void xsk_clear_tx_need_wakeup(struct xdp_umem *umem)
> +static inline void xsk_clear_tx_need_wakeup(struct xsk_buff_pool *pool)
> {
> }
>
> -static inline bool xsk_umem_uses_need_wakeup(struct xdp_umem *umem)
> +static inline bool xsk_uses_need_wakeup(struct xsk_buff_pool *pool)
> {
> return false;
> }
>
> -static inline u32 xsk_umem_get_headroom(struct xdp_umem *umem)
> +static inline u32 xsk_pool_get_headroom(struct xsk_buff_pool *pool)
> {
> return 0;
> }
>
> -static inline u32 xsk_umem_get_chunk_size(struct xdp_umem *umem)
> +static inline u32 xsk_pool_get_chunk_size(struct xsk_buff_pool *pool)
> {
> return 0;
> }
>
> -static inline u32 xsk_umem_get_rx_frame_size(struct xdp_umem *umem)
> +static inline u32 xsk_pool_get_rx_frame_size(struct xsk_buff_pool *pool)
> {
> return 0;
> }
>
> -static inline void xsk_buff_set_rxq_info(struct xdp_umem *umem,
> +static inline void xsk_pool_set_rxq_info(struct xsk_buff_pool *pool,
> struct xdp_rxq_info *rxq)
> {
> }
>
> -static inline void xsk_buff_dma_unmap(struct xdp_umem *umem,
> +static inline void xsk_pool_dma_unmap(struct xsk_buff_pool *pool,
> unsigned long attrs)
> {
> }
>
> -static inline int xsk_buff_dma_map(struct xdp_umem *umem, struct device *dev,
> - unsigned long attrs)
> +static inline int xsk_pool_dma_map(struct xsk_buff_pool *pool,
> + struct device *dev, unsigned long attrs)
> {
> return 0;
> }
> @@ -194,12 +197,12 @@ static inline dma_addr_t xsk_buff_xdp_get_frame_dma(struct xdp_buff *xdp)
> return 0;
> }
>
> -static inline struct xdp_buff *xsk_buff_alloc(struct xdp_umem *umem)
> +static inline struct xdp_buff *xsk_buff_alloc(struct xsk_buff_pool *pool)
> {
> return NULL;
> }
>
> -static inline bool xsk_buff_can_alloc(struct xdp_umem *umem, u32 count)
> +static inline bool xsk_buff_can_alloc(struct xsk_buff_pool *pool, u32 count)
> {
> return false;
> }
> @@ -208,12 +211,13 @@ static inline void xsk_buff_free(struct xdp_buff *xdp)
> {
> }
>
> -static inline dma_addr_t xsk_buff_raw_get_dma(struct xdp_umem *umem, u64 addr)
> +static inline dma_addr_t xsk_buff_raw_get_dma(struct xsk_buff_pool *pool,
> + u64 addr)
> {
> return 0;
> }
>
> -static inline void *xsk_buff_raw_get_data(struct xdp_umem *umem, u64 addr)
> +static inline void *xsk_buff_raw_get_data(struct xsk_buff_pool *pool, u64 addr)
> {
> return NULL;
> }
> @@ -222,7 +226,7 @@ static inline void xsk_buff_dma_sync_for_cpu(struct xdp_buff *xdp)
> {
> }
>
> -static inline void xsk_buff_raw_dma_sync_for_device(struct xdp_umem *umem,
> +static inline void xsk_buff_raw_dma_sync_for_device(struct xsk_buff_pool *pool,
> dma_addr_t dma,
> size_t size)
> {
> diff --git a/net/ethtool/channels.c b/net/ethtool/channels.c
> index 78d990b..9ecda09 100644
> --- a/net/ethtool/channels.c
> +++ b/net/ethtool/channels.c
> @@ -223,7 +223,7 @@ int ethnl_set_channels(struct sk_buff *skb, struct genl_info *info)
> from_channel = channels.combined_count +
> min(channels.rx_count, channels.tx_count);
> for (i = from_channel; i < old_total; i++)
> - if (xdp_get_xsk_pool_from_qid(dev, i)) {
> + if (xsk_get_pool_from_qid(dev, i)) {
> GENL_SET_ERR_MSG(info, "requested channel counts are too low for existing zerocopy AF_XDP sockets");
> return -EINVAL;
> }
> diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c
> index 2e6a678..925b573 100644
> --- a/net/ethtool/ioctl.c
> +++ b/net/ethtool/ioctl.c
> @@ -1706,7 +1706,7 @@ static noinline_for_stack int ethtool_set_channels(struct net_device *dev,
> min(channels.rx_count, channels.tx_count);
> to_channel = curr.combined_count + max(curr.rx_count, curr.tx_count);
> for (i = from_channel; i < to_channel; i++)
> - if (xdp_get_xsk_pool_from_qid(dev, i))
> + if (xsk_get_pool_from_qid(dev, i))
> return -EINVAL;
>
> ret = dev->ethtool_ops->set_channels(dev, &channels);
> diff --git a/net/xdp/xdp_umem.c b/net/xdp/xdp_umem.c
> index 0b5f3b0..adde4d5 100644
> --- a/net/xdp/xdp_umem.c
> +++ b/net/xdp/xdp_umem.c
> @@ -51,9 +51,9 @@ void xdp_del_sk_umem(struct xdp_umem *umem, struct xdp_sock *xs)
> * not know if the device has more tx queues than rx, or the opposite.
> * This might also change during run time.
> */
> -static int xdp_reg_xsk_pool_at_qid(struct net_device *dev,
> - struct xsk_buff_pool *pool,
> - u16 queue_id)
> +static int xsk_reg_pool_at_qid(struct net_device *dev,
> + struct xsk_buff_pool *pool,
> + u16 queue_id)
> {
> if (queue_id >= max_t(unsigned int,
> dev->real_num_rx_queues,
> @@ -68,8 +68,8 @@ static int xdp_reg_xsk_pool_at_qid(struct net_device *dev,
> return 0;
> }
>
> -struct xsk_buff_pool *xdp_get_xsk_pool_from_qid(struct net_device *dev,
> - u16 queue_id)
> +struct xsk_buff_pool *xsk_get_pool_from_qid(struct net_device *dev,
> + u16 queue_id)
> {
> if (queue_id < dev->real_num_rx_queues)
> return dev->_rx[queue_id].pool;
> @@ -78,9 +78,9 @@ struct xsk_buff_pool *xdp_get_xsk_pool_from_qid(struct net_device *dev,
>
> return NULL;
> }
> -EXPORT_SYMBOL(xdp_get_xsk_pool_from_qid);
> +EXPORT_SYMBOL(xsk_get_pool_from_qid);
>
> -static void xdp_clear_xsk_pool_at_qid(struct net_device *dev, u16 queue_id)
> +static void xsk_clear_pool_at_qid(struct net_device *dev, u16 queue_id)
> {
> if (queue_id < dev->real_num_rx_queues)
> dev->_rx[queue_id].pool = NULL;
> @@ -103,10 +103,10 @@ int xdp_umem_assign_dev(struct xdp_umem *umem, struct net_device *dev,
> if (force_zc && force_copy)
> return -EINVAL;
>
> - if (xdp_get_xsk_pool_from_qid(dev, queue_id))
> + if (xsk_get_pool_from_qid(dev, queue_id))
> return -EBUSY;
>
> - err = xdp_reg_xsk_pool_at_qid(dev, umem->pool, queue_id);
> + err = xsk_reg_pool_at_qid(dev, umem->pool, queue_id);
> if (err)
> return err;
>
> @@ -119,7 +119,7 @@ int xdp_umem_assign_dev(struct xdp_umem *umem, struct net_device *dev,
> * Also for supporting drivers that do not implement this
> * feature. They will always have to call sendto().
> */
> - xsk_set_tx_need_wakeup(umem);
> + xsk_set_tx_need_wakeup(umem->pool);
> }
>
> dev_hold(dev);
> @@ -148,7 +148,7 @@ int xdp_umem_assign_dev(struct xdp_umem *umem, struct net_device *dev,
> if (!force_zc)
> err = 0; /* fallback to copy mode */
> if (err)
> - xdp_clear_xsk_pool_at_qid(dev, queue_id);
> + xsk_clear_pool_at_qid(dev, queue_id);
> return err;
> }
>
> @@ -173,7 +173,7 @@ void xdp_umem_clear_dev(struct xdp_umem *umem)
> WARN(1, "failed to disable umem!\n");
> }
>
> - xdp_clear_xsk_pool_at_qid(umem->dev, umem->queue_id);
> + xsk_clear_pool_at_qid(umem->dev, umem->queue_id);
>
> dev_put(umem->dev);
> umem->dev = NULL;
> diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c
> index 26e3bba..008065f 100644
> --- a/net/xdp/xsk.c
> +++ b/net/xdp/xsk.c
> @@ -39,8 +39,10 @@ bool xsk_is_setup_for_bpf_map(struct xdp_sock *xs)
> READ_ONCE(xs->umem->fq);
> }
>
> -void xsk_set_rx_need_wakeup(struct xdp_umem *umem)
> +void xsk_set_rx_need_wakeup(struct xsk_buff_pool *pool)
> {
> + struct xdp_umem *umem = pool->umem;
> +
> if (umem->need_wakeup & XDP_WAKEUP_RX)
> return;
>
> @@ -49,8 +51,9 @@ void xsk_set_rx_need_wakeup(struct xdp_umem *umem)
> }
> EXPORT_SYMBOL(xsk_set_rx_need_wakeup);
>
> -void xsk_set_tx_need_wakeup(struct xdp_umem *umem)
> +void xsk_set_tx_need_wakeup(struct xsk_buff_pool *pool)
> {
> + struct xdp_umem *umem = pool->umem;
> struct xdp_sock *xs;
>
> if (umem->need_wakeup & XDP_WAKEUP_TX)
> @@ -66,8 +69,10 @@ void xsk_set_tx_need_wakeup(struct xdp_umem *umem)
> }
> EXPORT_SYMBOL(xsk_set_tx_need_wakeup);
>
> -void xsk_clear_rx_need_wakeup(struct xdp_umem *umem)
> +void xsk_clear_rx_need_wakeup(struct xsk_buff_pool *pool)
> {
> + struct xdp_umem *umem = pool->umem;
> +
> if (!(umem->need_wakeup & XDP_WAKEUP_RX))
> return;
>
> @@ -76,8 +81,9 @@ void xsk_clear_rx_need_wakeup(struct xdp_umem *umem)
> }
> EXPORT_SYMBOL(xsk_clear_rx_need_wakeup);
>
> -void xsk_clear_tx_need_wakeup(struct xdp_umem *umem)
> +void xsk_clear_tx_need_wakeup(struct xsk_buff_pool *pool)
> {
> + struct xdp_umem *umem = pool->umem;
> struct xdp_sock *xs;
>
> if (!(umem->need_wakeup & XDP_WAKEUP_TX))
> @@ -93,11 +99,11 @@ void xsk_clear_tx_need_wakeup(struct xdp_umem *umem)
> }
> EXPORT_SYMBOL(xsk_clear_tx_need_wakeup);
>
> -bool xsk_umem_uses_need_wakeup(struct xdp_umem *umem)
> +bool xsk_uses_need_wakeup(struct xsk_buff_pool *pool)
> {
> - return umem->flags & XDP_UMEM_USES_NEED_WAKEUP;
> + return pool->umem->flags & XDP_UMEM_USES_NEED_WAKEUP;
> }
> -EXPORT_SYMBOL(xsk_umem_uses_need_wakeup);
> +EXPORT_SYMBOL(xsk_uses_need_wakeup);
>
> void xp_release(struct xdp_buff_xsk *xskb)
> {
> @@ -155,12 +161,12 @@ static int __xsk_rcv(struct xdp_sock *xs, struct xdp_buff *xdp, u32 len,
> struct xdp_buff *xsk_xdp;
> int err;
>
> - if (len > xsk_umem_get_rx_frame_size(xs->umem)) {
> + if (len > xsk_pool_get_rx_frame_size(xs->pool)) {
> xs->rx_dropped++;
> return -ENOSPC;
> }
>
> - xsk_xdp = xsk_buff_alloc(xs->umem);
> + xsk_xdp = xsk_buff_alloc(xs->pool);
> if (!xsk_xdp) {
> xs->rx_dropped++;
> return -ENOSPC;
> @@ -249,27 +255,28 @@ void __xsk_map_flush(void)
> }
> }
>
> -void xsk_umem_complete_tx(struct xdp_umem *umem, u32 nb_entries)
> +void xsk_tx_completed(struct xsk_buff_pool *pool, u32 nb_entries)
> {
> - xskq_prod_submit_n(umem->cq, nb_entries);
> + xskq_prod_submit_n(pool->umem->cq, nb_entries);
> }
> -EXPORT_SYMBOL(xsk_umem_complete_tx);
> +EXPORT_SYMBOL(xsk_tx_completed);
>
> -void xsk_umem_consume_tx_done(struct xdp_umem *umem)
> +void xsk_tx_release(struct xsk_buff_pool *pool)
> {
> struct xdp_sock *xs;
>
> rcu_read_lock();
> - list_for_each_entry_rcu(xs, &umem->xsk_tx_list, list) {
> + list_for_each_entry_rcu(xs, &pool->umem->xsk_tx_list, list) {
> __xskq_cons_release(xs->tx);
> xs->sk.sk_write_space(&xs->sk);
> }
> rcu_read_unlock();
> }
> -EXPORT_SYMBOL(xsk_umem_consume_tx_done);
> +EXPORT_SYMBOL(xsk_tx_release);
>
> -bool xsk_umem_consume_tx(struct xdp_umem *umem, struct xdp_desc *desc)
> +bool xsk_tx_peek_desc(struct xsk_buff_pool *pool, struct xdp_desc *desc)
> {
> + struct xdp_umem *umem = pool->umem;
> struct xdp_sock *xs;
>
> rcu_read_lock();
> @@ -296,7 +303,7 @@ bool xsk_umem_consume_tx(struct xdp_umem *umem, struct xdp_desc *desc)
> rcu_read_unlock();
> return false;
> }
> -EXPORT_SYMBOL(xsk_umem_consume_tx);
> +EXPORT_SYMBOL(xsk_tx_peek_desc);
>
> static int xsk_wakeup(struct xdp_sock *xs, u8 flags)
> {
> @@ -359,7 +366,7 @@ static int xsk_generic_xmit(struct sock *sk)
>
> skb_put(skb, len);
> addr = desc.addr;
> - buffer = xsk_buff_raw_get_data(xs->umem, addr);
> + buffer = xsk_buff_raw_get_data(xs->pool, addr);
> err = skb_store_bits(skb, 0, buffer, len);
> /* This is the backpressure mechanism for the Tx path.
> * Reserve space in the completion queue and only proceed
> @@ -762,6 +769,8 @@ static int xsk_setsockopt(struct socket *sock, int level, int optname,
> return PTR_ERR(umem);
> }
>
> + xs->pool = umem->pool;
> +
> /* Make sure umem is ready before it can be seen by others */
> smp_wmb();
> WRITE_ONCE(xs->umem, umem);
>
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