diff options
author | Andre Guedes <andre.guedes@intel.com> | 2021-04-22 23:25:54 -0700 |
---|---|---|
committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2021-05-20 10:21:42 -0700 |
commit | fc9df2a0b520d7d439ecf464794d53e91be74b93 (patch) | |
tree | 547b81536f114ee36929461a74f92ce1ea96bc61 /drivers/net/ethernet/intel | |
parent | 859b4dfa4115d11aa1fda7d0628a93a9d61a7c46 (diff) | |
download | linux-fc9df2a0b520d7d439ecf464794d53e91be74b93.tar.bz2 |
igc: Enable RX via AF_XDP zero-copy
Add support for receiving packets via AF_XDP zero-copy mechanism.
Add a new flag to 'enum igc_ring_flags_t' to indicate the ring has
AF_XDP zero-copy enabled so proper ring setup is carried out during ring
configuration in igc_configure_rx_ring().
RX buffers can now be allocated via the shared pages mechanism (default
behavior of the driver) or via xsk pool (when AF_XDP zero-copy is
enabled) so a union is added to the 'struct igc_rx_buffer' to cover both
cases.
When AF_XDP zero-copy is enabled, rx buffers are allocated from the xsk
pool using the new helper igc_alloc_rx_buffers_zc() which is the
counterpart of igc_alloc_rx_buffers().
Likewise other Intel drivers that support AF_XDP zero-copy, in igc we
have a dedicated path for cleaning up rx irqs when zero-copy is enabled.
This avoids adding too many checks within igc_clean_rx_irq(), resulting
in a more readable and efficient code since this function is called from
the hot-path of the driver.
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
Signed-off-by: Vedang Patel <vedang.patel@intel.com>
Signed-off-by: Jithu Joseph <jithu.joseph@intel.com>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel')
-rw-r--r-- | drivers/net/ethernet/intel/igc/igc.h | 22 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/igc/igc_base.h | 1 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/igc/igc_main.c | 344 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/igc/igc_xdp.c | 100 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/igc/igc_xdp.h | 2 |
5 files changed, 450 insertions, 19 deletions
diff --git a/drivers/net/ethernet/intel/igc/igc.h b/drivers/net/ethernet/intel/igc/igc.h index 4815c520652b..cd6f4c94c4dd 100644 --- a/drivers/net/ethernet/intel/igc/igc.h +++ b/drivers/net/ethernet/intel/igc/igc.h @@ -118,6 +118,7 @@ struct igc_ring { }; struct xdp_rxq_info xdp_rxq; + struct xsk_buff_pool *xsk_pool; } ____cacheline_internodealigned_in_smp; /* Board specific private data structure */ @@ -255,6 +256,9 @@ bool igc_has_link(struct igc_adapter *adapter); void igc_reset(struct igc_adapter *adapter); int igc_set_spd_dplx(struct igc_adapter *adapter, u32 spd, u8 dplx); void igc_update_stats(struct igc_adapter *adapter); +void igc_disable_rx_ring(struct igc_ring *ring); +void igc_enable_rx_ring(struct igc_ring *ring); +int igc_xsk_wakeup(struct net_device *dev, u32 queue_id, u32 flags); /* igc_dump declarations */ void igc_rings_dump(struct igc_adapter *adapter); @@ -432,14 +436,19 @@ struct igc_tx_buffer { }; struct igc_rx_buffer { - dma_addr_t dma; - struct page *page; + union { + struct { + dma_addr_t dma; + struct page *page; #if (BITS_PER_LONG > 32) || (PAGE_SIZE >= 65536) - __u32 page_offset; + __u32 page_offset; #else - __u16 page_offset; + __u16 page_offset; #endif - __u16 pagecnt_bias; + __u16 pagecnt_bias; + }; + struct xdp_buff *xdp; + }; }; struct igc_q_vector { @@ -525,7 +534,8 @@ enum igc_ring_flags_t { IGC_RING_FLAG_RX_SCTP_CSUM, IGC_RING_FLAG_RX_LB_VLAN_BSWAP, IGC_RING_FLAG_TX_CTX_IDX, - IGC_RING_FLAG_TX_DETECT_HANG + IGC_RING_FLAG_TX_DETECT_HANG, + IGC_RING_FLAG_AF_XDP_ZC, }; #define ring_uses_large_buffer(ring) \ diff --git a/drivers/net/ethernet/intel/igc/igc_base.h b/drivers/net/ethernet/intel/igc/igc_base.h index ea627ce52525..2ca028c1919f 100644 --- a/drivers/net/ethernet/intel/igc/igc_base.h +++ b/drivers/net/ethernet/intel/igc/igc_base.h @@ -81,6 +81,7 @@ union igc_adv_rx_desc { /* Additional Receive Descriptor Control definitions */ #define IGC_RXDCTL_QUEUE_ENABLE 0x02000000 /* Ena specific Rx Queue */ +#define IGC_RXDCTL_SWFLUSH 0x04000000 /* Receive Software Flush */ /* SRRCTL bit definitions */ #define IGC_SRRCTL_BSIZEPKT_SHIFT 10 /* Shift _right_ */ diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c index 4e1327a5a61e..3ffc20fae4c6 100644 --- a/drivers/net/ethernet/intel/igc/igc_main.c +++ b/drivers/net/ethernet/intel/igc/igc_main.c @@ -11,7 +11,7 @@ #include <linux/pm_runtime.h> #include <net/pkt_sched.h> #include <linux/bpf_trace.h> - +#include <net/xdp_sock_drv.h> #include <net/ipv6.h> #include "igc.h" @@ -389,13 +389,31 @@ static void igc_clean_rx_ring_page_shared(struct igc_ring *rx_ring) } } +static void igc_clean_rx_ring_xsk_pool(struct igc_ring *ring) +{ + struct igc_rx_buffer *bi; + u16 i; + + for (i = 0; i < ring->count; i++) { + bi = &ring->rx_buffer_info[i]; + if (!bi->xdp) + continue; + + xsk_buff_free(bi->xdp); + bi->xdp = NULL; + } +} + /** * igc_clean_rx_ring - Free Rx Buffers per Queue * @ring: ring to free buffers from */ static void igc_clean_rx_ring(struct igc_ring *ring) { - igc_clean_rx_ring_page_shared(ring); + if (ring->xsk_pool) + igc_clean_rx_ring_xsk_pool(ring); + else + igc_clean_rx_ring_page_shared(ring); clear_ring_uses_large_buffer(ring); @@ -533,6 +551,16 @@ static int igc_setup_all_rx_resources(struct igc_adapter *adapter) return err; } +static struct xsk_buff_pool *igc_get_xsk_pool(struct igc_adapter *adapter, + struct igc_ring *ring) +{ + if (!igc_xdp_is_enabled(adapter) || + !test_bit(IGC_RING_FLAG_AF_XDP_ZC, &ring->flags)) + return NULL; + + return xsk_get_pool_from_qid(ring->netdev, ring->queue_index); +} + /** * igc_configure_rx_ring - Configure a receive ring after Reset * @adapter: board private structure @@ -548,9 +576,20 @@ static void igc_configure_rx_ring(struct igc_adapter *adapter, int reg_idx = ring->reg_idx; 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)); + u32 buf_size; + + xdp_rxq_info_unreg_mem_model(&ring->xdp_rxq); + ring->xsk_pool = igc_get_xsk_pool(adapter, ring); + if (ring->xsk_pool) { + WARN_ON(xdp_rxq_info_reg_mem_model(&ring->xdp_rxq, + MEM_TYPE_XSK_BUFF_POOL, + NULL)); + 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)); + } if (igc_xdp_is_enabled(adapter)) set_ring_uses_large_buffer(ring); @@ -574,12 +613,15 @@ static void igc_configure_rx_ring(struct igc_adapter *adapter, ring->next_to_clean = 0; ring->next_to_use = 0; - /* set descriptor configuration */ - srrctl = IGC_RX_HDR_LEN << IGC_SRRCTL_BSIZEHDRSIZE_SHIFT; - if (ring_uses_large_buffer(ring)) - srrctl |= IGC_RXBUFFER_3072 >> IGC_SRRCTL_BSIZEPKT_SHIFT; + if (ring->xsk_pool) + buf_size = xsk_pool_get_rx_frame_size(ring->xsk_pool); + else if (ring_uses_large_buffer(ring)) + buf_size = IGC_RXBUFFER_3072; else - srrctl |= IGC_RXBUFFER_2048 >> IGC_SRRCTL_BSIZEPKT_SHIFT; + buf_size = IGC_RXBUFFER_2048; + + srrctl = IGC_RX_HDR_LEN << IGC_SRRCTL_BSIZEHDRSIZE_SHIFT; + srrctl |= buf_size >> IGC_SRRCTL_BSIZEPKT_SHIFT; srrctl |= IGC_SRRCTL_DESCTYPE_ADV_ONEBUF; wr32(IGC_SRRCTL(reg_idx), srrctl); @@ -1939,6 +1981,63 @@ static void igc_alloc_rx_buffers(struct igc_ring *rx_ring, u16 cleaned_count) } } +static bool igc_alloc_rx_buffers_zc(struct igc_ring *ring, u16 count) +{ + union igc_adv_rx_desc *desc; + u16 i = ring->next_to_use; + struct igc_rx_buffer *bi; + dma_addr_t dma; + bool ok = true; + + if (!count) + return ok; + + desc = IGC_RX_DESC(ring, i); + bi = &ring->rx_buffer_info[i]; + i -= ring->count; + + do { + bi->xdp = xsk_buff_alloc(ring->xsk_pool); + if (!bi->xdp) { + ok = false; + break; + } + + dma = xsk_buff_xdp_get_dma(bi->xdp); + desc->read.pkt_addr = cpu_to_le64(dma); + + desc++; + bi++; + i++; + if (unlikely(!i)) { + desc = IGC_RX_DESC(ring, 0); + bi = ring->rx_buffer_info; + i -= ring->count; + } + + /* Clear the length for the next_to_use descriptor. */ + desc->wb.upper.length = 0; + + count--; + } while (count); + + i += ring->count; + + if (ring->next_to_use != i) { + ring->next_to_use = i; + + /* Force memory writes to complete before letting h/w + * know there are new descriptors to fetch. (Only + * applicable for weak-ordered memory model archs, + * such as IA-64). + */ + wmb(); + writel(i, ring->tail); + } + + return ok; +} + static int igc_xdp_init_tx_buffer(struct igc_tx_buffer *buffer, struct xdp_frame *xdpf, struct igc_ring *ring) @@ -2254,6 +2353,148 @@ static int igc_clean_rx_irq(struct igc_q_vector *q_vector, const int budget) return total_packets; } +static struct sk_buff *igc_construct_skb_zc(struct igc_ring *ring, + struct xdp_buff *xdp) +{ + unsigned int metasize = xdp->data - xdp->data_meta; + unsigned int datasize = xdp->data_end - xdp->data; + unsigned int totalsize = metasize + datasize; + struct sk_buff *skb; + + skb = __napi_alloc_skb(&ring->q_vector->napi, + xdp->data_end - xdp->data_hard_start, + GFP_ATOMIC | __GFP_NOWARN); + if (unlikely(!skb)) + return NULL; + + skb_reserve(skb, xdp->data_meta - xdp->data_hard_start); + memcpy(__skb_put(skb, totalsize), xdp->data_meta, totalsize); + if (metasize) + skb_metadata_set(skb, metasize); + + return skb; +} + +static void igc_dispatch_skb_zc(struct igc_q_vector *q_vector, + union igc_adv_rx_desc *desc, + struct xdp_buff *xdp, + ktime_t timestamp) +{ + struct igc_ring *ring = q_vector->rx.ring; + struct sk_buff *skb; + + skb = igc_construct_skb_zc(ring, xdp); + if (!skb) { + ring->rx_stats.alloc_failed++; + return; + } + + if (timestamp) + skb_hwtstamps(skb)->hwtstamp = timestamp; + + if (igc_cleanup_headers(ring, desc, skb)) + return; + + igc_process_skb_fields(ring, desc, skb); + napi_gro_receive(&q_vector->napi, skb); +} + +static int igc_clean_rx_irq_zc(struct igc_q_vector *q_vector, const int budget) +{ + struct igc_adapter *adapter = q_vector->adapter; + struct igc_ring *ring = q_vector->rx.ring; + u16 cleaned_count = igc_desc_unused(ring); + int total_bytes = 0, total_packets = 0; + u16 ntc = ring->next_to_clean; + struct bpf_prog *prog; + bool failure = false; + int xdp_status = 0; + + rcu_read_lock(); + + prog = READ_ONCE(adapter->xdp_prog); + + while (likely(total_packets < budget)) { + union igc_adv_rx_desc *desc; + struct igc_rx_buffer *bi; + ktime_t timestamp = 0; + unsigned int size; + int res; + + desc = IGC_RX_DESC(ring, ntc); + size = le16_to_cpu(desc->wb.upper.length); + if (!size) + break; + + /* This memory barrier is needed to keep us from reading + * any other fields out of the rx_desc until we know the + * descriptor has been written back + */ + dma_rmb(); + + bi = &ring->rx_buffer_info[ntc]; + + if (igc_test_staterr(desc, IGC_RXDADV_STAT_TSIP)) { + timestamp = igc_ptp_rx_pktstamp(q_vector->adapter, + bi->xdp->data); + + bi->xdp->data += IGC_TS_HDR_LEN; + + /* HW timestamp has been copied into local variable. Metadata + * length when XDP program is called should be 0. + */ + bi->xdp->data_meta += IGC_TS_HDR_LEN; + size -= IGC_TS_HDR_LEN; + } + + bi->xdp->data_end = bi->xdp->data + size; + xsk_buff_dma_sync_for_cpu(bi->xdp, ring->xsk_pool); + + res = __igc_xdp_run_prog(adapter, prog, bi->xdp); + switch (res) { + case IGC_XDP_PASS: + igc_dispatch_skb_zc(q_vector, desc, bi->xdp, timestamp); + fallthrough; + case IGC_XDP_CONSUMED: + xsk_buff_free(bi->xdp); + break; + case IGC_XDP_TX: + case IGC_XDP_REDIRECT: + xdp_status |= res; + break; + } + + bi->xdp = NULL; + total_bytes += size; + total_packets++; + cleaned_count++; + ntc++; + if (ntc == ring->count) + ntc = 0; + } + + ring->next_to_clean = ntc; + rcu_read_unlock(); + + if (cleaned_count >= IGC_RX_BUFFER_WRITE) + failure = !igc_alloc_rx_buffers_zc(ring, cleaned_count); + + if (xdp_status) + igc_finalize_xdp(adapter, xdp_status); + + igc_update_rx_stats(q_vector, total_packets, total_bytes); + + if (xsk_uses_need_wakeup(ring->xsk_pool)) { + if (failure || ring->next_to_clean == ring->next_to_use) + xsk_set_rx_need_wakeup(ring->xsk_pool); + else + xsk_clear_rx_need_wakeup(ring->xsk_pool); + return total_packets; + } + + return failure ? budget : total_packets; +} + static void igc_update_tx_stats(struct igc_q_vector *q_vector, unsigned int packets, unsigned int bytes) { @@ -2946,7 +3187,10 @@ static void igc_configure(struct igc_adapter *adapter) for (i = 0; i < adapter->num_rx_queues; i++) { struct igc_ring *ring = adapter->rx_ring[i]; - igc_alloc_rx_buffers(ring, igc_desc_unused(ring)); + if (ring->xsk_pool) + igc_alloc_rx_buffers_zc(ring, igc_desc_unused(ring)); + else + igc_alloc_rx_buffers(ring, igc_desc_unused(ring)); } } @@ -3561,14 +3805,17 @@ static int igc_poll(struct napi_struct *napi, int budget) struct igc_q_vector *q_vector = container_of(napi, struct igc_q_vector, napi); + struct igc_ring *rx_ring = q_vector->rx.ring; bool clean_complete = true; int work_done = 0; if (q_vector->tx.ring) clean_complete = igc_clean_tx_irq(q_vector, budget); - if (q_vector->rx.ring) { - int cleaned = igc_clean_rx_irq(q_vector, budget); + if (rx_ring) { + int cleaned = rx_ring->xsk_pool ? + igc_clean_rx_irq_zc(q_vector, budget) : + igc_clean_rx_irq(q_vector, budget); work_done += cleaned; if (cleaned >= budget) @@ -5206,6 +5453,9 @@ static int igc_bpf(struct net_device *dev, struct netdev_bpf *bpf) switch (bpf->command) { case XDP_SETUP_PROG: return igc_xdp_set_prog(adapter, bpf->prog, bpf->extack); + case XDP_SETUP_XSK_POOL: + return igc_xdp_setup_pool(adapter, bpf->xsk.pool, + bpf->xsk.queue_id); default: return -EOPNOTSUPP; } @@ -5251,6 +5501,43 @@ static int igc_xdp_xmit(struct net_device *dev, int num_frames, return num_frames - drops; } +static void igc_trigger_rxtxq_interrupt(struct igc_adapter *adapter, + struct igc_q_vector *q_vector) +{ + struct igc_hw *hw = &adapter->hw; + u32 eics = 0; + + eics |= q_vector->eims_value; + wr32(IGC_EICS, eics); +} + +int igc_xsk_wakeup(struct net_device *dev, u32 queue_id, u32 flags) +{ + struct igc_adapter *adapter = netdev_priv(dev); + struct igc_q_vector *q_vector; + struct igc_ring *ring; + + if (test_bit(__IGC_DOWN, &adapter->state)) + return -ENETDOWN; + + if (!igc_xdp_is_enabled(adapter)) + return -ENXIO; + + if (queue_id >= adapter->num_rx_queues) + return -EINVAL; + + ring = adapter->rx_ring[queue_id]; + + if (!ring->xsk_pool) + return -ENXIO; + + q_vector = adapter->q_vector[queue_id]; + if (!napi_if_scheduled_mark_missed(&q_vector->napi)) + igc_trigger_rxtxq_interrupt(adapter, q_vector); + + return 0; +} + static const struct net_device_ops igc_netdev_ops = { .ndo_open = igc_open, .ndo_stop = igc_close, @@ -5266,6 +5553,7 @@ static const struct net_device_ops igc_netdev_ops = { .ndo_setup_tc = igc_setup_tc, .ndo_bpf = igc_bpf, .ndo_xdp_xmit = igc_xdp_xmit, + .ndo_xsk_wakeup = igc_xsk_wakeup, }; /* PCIe configuration access */ @@ -6018,6 +6306,36 @@ struct net_device *igc_get_hw_dev(struct igc_hw *hw) return adapter->netdev; } +static void igc_disable_rx_ring_hw(struct igc_ring *ring) +{ + struct igc_hw *hw = &ring->q_vector->adapter->hw; + u8 idx = ring->reg_idx; + u32 rxdctl; + + rxdctl = rd32(IGC_RXDCTL(idx)); + rxdctl &= ~IGC_RXDCTL_QUEUE_ENABLE; + rxdctl |= IGC_RXDCTL_SWFLUSH; + wr32(IGC_RXDCTL(idx), rxdctl); +} + +void igc_disable_rx_ring(struct igc_ring *ring) +{ + igc_disable_rx_ring_hw(ring); + igc_clean_rx_ring(ring); +} + +void igc_enable_rx_ring(struct igc_ring *ring) +{ + struct igc_adapter *adapter = ring->q_vector->adapter; + + igc_configure_rx_ring(adapter, ring); + + if (ring->xsk_pool) + igc_alloc_rx_buffers_zc(ring, igc_desc_unused(ring)); + else + igc_alloc_rx_buffers(ring, igc_desc_unused(ring)); +} + /** * igc_init_module - Driver Registration Routine * diff --git a/drivers/net/ethernet/intel/igc/igc_xdp.c b/drivers/net/ethernet/intel/igc/igc_xdp.c index 27c886a254f1..c65d690b75bf 100644 --- a/drivers/net/ethernet/intel/igc/igc_xdp.c +++ b/drivers/net/ethernet/intel/igc/igc_xdp.c @@ -1,6 +1,8 @@ // SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2020, Intel Corporation. */ +#include <net/xdp_sock_drv.h> + #include "igc.h" #include "igc_xdp.h" @@ -31,3 +33,101 @@ int igc_xdp_set_prog(struct igc_adapter *adapter, struct bpf_prog *prog, return 0; } + +static int igc_xdp_enable_pool(struct igc_adapter *adapter, + struct xsk_buff_pool *pool, u16 queue_id) +{ + struct net_device *ndev = adapter->netdev; + struct device *dev = &adapter->pdev->dev; + struct igc_ring *rx_ring; + struct napi_struct *napi; + bool needs_reset; + u32 frame_size; + int err; + + if (queue_id >= adapter->num_rx_queues) + return -EINVAL; + + frame_size = xsk_pool_get_rx_frame_size(pool); + if (frame_size < ETH_FRAME_LEN + VLAN_HLEN * 2) { + /* When XDP is enabled, the driver doesn't support frames that + * span over multiple buffers. To avoid that, we check if xsk + * frame size is big enough to fit the max ethernet frame size + * + vlan double tagging. + */ + return -EOPNOTSUPP; + } + + err = xsk_pool_dma_map(pool, dev, IGC_RX_DMA_ATTR); + if (err) { + netdev_err(ndev, "Failed to map xsk pool\n"); + return err; + } + + needs_reset = netif_running(adapter->netdev) && igc_xdp_is_enabled(adapter); + + rx_ring = adapter->rx_ring[queue_id]; + napi = &rx_ring->q_vector->napi; + + if (needs_reset) { + igc_disable_rx_ring(rx_ring); + napi_disable(napi); + } + + set_bit(IGC_RING_FLAG_AF_XDP_ZC, &rx_ring->flags); + + if (needs_reset) { + napi_enable(napi); + igc_enable_rx_ring(rx_ring); + + err = igc_xsk_wakeup(ndev, queue_id, XDP_WAKEUP_RX); + if (err) { + xsk_pool_dma_unmap(pool, IGC_RX_DMA_ATTR); + return err; + } + } + + return 0; +} + +static int igc_xdp_disable_pool(struct igc_adapter *adapter, u16 queue_id) +{ + struct xsk_buff_pool *pool; + struct igc_ring *rx_ring; + struct napi_struct *napi; + bool needs_reset; + + if (queue_id >= adapter->num_rx_queues) + return -EINVAL; + + pool = xsk_get_pool_from_qid(adapter->netdev, queue_id); + if (!pool) + return -EINVAL; + + needs_reset = netif_running(adapter->netdev) && igc_xdp_is_enabled(adapter); + + rx_ring = adapter->rx_ring[queue_id]; + napi = &rx_ring->q_vector->napi; + + if (needs_reset) { + igc_disable_rx_ring(rx_ring); + napi_disable(napi); + } + + xsk_pool_dma_unmap(pool, IGC_RX_DMA_ATTR); + clear_bit(IGC_RING_FLAG_AF_XDP_ZC, &rx_ring->flags); + + if (needs_reset) { + napi_enable(napi); + igc_enable_rx_ring(rx_ring); + } + + return 0; +} + +int igc_xdp_setup_pool(struct igc_adapter *adapter, struct xsk_buff_pool *pool, + u16 queue_id) +{ + return pool ? igc_xdp_enable_pool(adapter, pool, queue_id) : + igc_xdp_disable_pool(adapter, queue_id); +} diff --git a/drivers/net/ethernet/intel/igc/igc_xdp.h b/drivers/net/ethernet/intel/igc/igc_xdp.h index cdaa2c39b03a..a74e5487d199 100644 --- a/drivers/net/ethernet/intel/igc/igc_xdp.h +++ b/drivers/net/ethernet/intel/igc/igc_xdp.h @@ -6,6 +6,8 @@ int igc_xdp_set_prog(struct igc_adapter *adapter, struct bpf_prog *prog, struct netlink_ext_ack *extack); +int igc_xdp_setup_pool(struct igc_adapter *adapter, struct xsk_buff_pool *pool, + u16 queue_id); static inline bool igc_xdp_is_enabled(struct igc_adapter *adapter) { |