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| author | Alexander Lobakin <aleksander.lobakin@intel.com> | 2024-04-18 13:36:15 +0200 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2024-04-24 11:06:26 -0700 |
| commit | 5fa4caff59f251bf9f766fc48c9f0a774a9216a0 (patch) | |
| tree | 233a136a8dab14981031dc37ae849205e29af1b9 /drivers/net/ethernet/intel/iavf/iavf_main.c | |
| parent | 97cadd3d3ce3df32647011233a35a1597bb7a55b (diff) | |
| download | linux-5fa4caff59f251bf9f766fc48c9f0a774a9216a0.tar.gz linux-5fa4caff59f251bf9f766fc48c9f0a774a9216a0.tar.bz2 linux-5fa4caff59f251bf9f766fc48c9f0a774a9216a0.zip | |
iavf: switch to Page Pool
Now that the IAVF driver simply uses dev_alloc_page() + free_page() with
no custom recycling logics, it can easily be switched to using Page
Pool / libeth API instead.
This allows to removing the whole dancing around headroom, HW buffer
size, and page order. All DMA-for-device is now done in the PP core,
for-CPU -- in the libeth helper.
Use skb_mark_for_recycle() to bring back the recycling and restore the
performance. Speaking of performance: on par with the baseline and
faster with the PP optimization series applied. But the memory usage for
1500b MTU is now almost 2x lower (x86_64) thanks to allocating a page
every second descriptor.
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/iavf/iavf_main.c')
| -rw-r--r-- | drivers/net/ethernet/intel/iavf/iavf_main.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c index ffb71a62b105..7e0de0a9b883 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_main.c +++ b/drivers/net/ethernet/intel/iavf/iavf_main.c @@ -1,6 +1,8 @@ // SPDX-License-Identifier: GPL-2.0 /* Copyright(c) 2013 - 2018 Intel Corporation. */ +#include <linux/net/intel/libie/rx.h> + #include "iavf.h" #include "iavf_prototype.h" /* All iavf tracepoints are defined by the include below, which must @@ -45,6 +47,7 @@ MODULE_DEVICE_TABLE(pci, iavf_pci_tbl); MODULE_ALIAS("i40evf"); MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>"); MODULE_DESCRIPTION("Intel(R) Ethernet Adaptive Virtual Function Network Driver"); +MODULE_IMPORT_NS(LIBETH); MODULE_IMPORT_NS(LIBIE); MODULE_LICENSE("GPL v2"); @@ -1586,7 +1589,6 @@ static int iavf_alloc_queues(struct iavf_adapter *adapter) rx_ring = &adapter->rx_rings[i]; rx_ring->queue_index = i; rx_ring->netdev = adapter->netdev; - rx_ring->dev = &adapter->pdev->dev; rx_ring->count = adapter->rx_desc_count; rx_ring->itr_setting = IAVF_ITR_RX_DEF; } @@ -2613,9 +2615,8 @@ static void iavf_init_config_adapter(struct iavf_adapter *adapter) iavf_set_ethtool_ops(netdev); netdev->watchdog_timeo = 5 * HZ; - /* MTU range: 68 - 9710 */ netdev->min_mtu = ETH_MIN_MTU; - netdev->max_mtu = IAVF_MAX_RXBUFFER - IAVF_PACKET_HDR_PAD; + netdev->max_mtu = LIBIE_MAX_MTU; if (!is_valid_ether_addr(adapter->hw.mac.addr)) { dev_info(&pdev->dev, "Invalid MAC address %pM, using random\n", |